From f53e86760e10abbe7ee98a5b3cb270fa6426fcdb Mon Sep 17 00:00:00 2001
From: Robin Getz <robin.getz@analog.com>
Date: Sun, 27 Jan 2008 15:38:44 +0800
Subject: [Blackfin] arch: Add a note describing what is going on - no
 functional changes

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-common/cplbmgr.S | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-common/cplbmgr.S b/arch/blackfin/mach-common/cplbmgr.S
index 6f909cbfac7b..faca1ab344d2 100644
--- a/arch/blackfin/mach-common/cplbmgr.S
+++ b/arch/blackfin/mach-common/cplbmgr.S
@@ -75,6 +75,15 @@ ENTRY(_cplb_mgr)
 	* from the configuration table.
 	*/
 
+	/* A multi-word instruction can cross a page boundary. This means the
+	 * first part of the instruction can be in a valid page, but the
+	 * second part is not, and hence generates the instruction miss.
+	 * However, the fault address is for the start of the instruction,
+	 * not the part that's in the bad page. Therefore, we have to check
+	 * whether the fault address applies to a page that is already present
+	 * in the table.
+	 */
+
 	P4.L = LO(ICPLB_FAULT_ADDR);
 	P4.H = HI(ICPLB_FAULT_ADDR);
 
@@ -87,7 +96,7 @@ ENTRY(_cplb_mgr)
 	R4 = [P4];		/* Get faulting address*/
 	R6 = 64;		/* Advance past the fault address, which*/
 	R6 = R6 + R4;		/* we'll use if we find a match*/
-	R3 = ((16 << 8) | 2);	/* Extract mask, bits 16 and 17.*/
+	R3 = ((16 << 8) | 2);	/* Extract mask, two bits at posn 16 */
 
 	R5 = 0;
 .Lisearch:
@@ -125,7 +134,9 @@ ENTRY(_cplb_mgr)
 	P4.L = LO(IMEM_CONTROL);
 	P4.H = HI(IMEM_CONTROL);
 
-	/* disable cplbs */
+	/* Turn off CPLBs while we work, necessary according to HRM before
+	 * modifying CPLB descriptors
+	 */
 	R5 = [P4];		/* Control Register*/
 	BITCLR(R5,ENICPLB_P);
 	CLI R1;
-- 
cgit v1.2.3-59-g8ed1b


From 13fe24f37df20e580a5a364e67ec8cf3219d8f8c Mon Sep 17 00:00:00 2001
From: Robin Getz <robin.getz@analog.com>
Date: Sun, 27 Jan 2008 15:38:56 +0800
Subject: [Blackfin] arch: fix bug - trap_tests fails to recover on some tests.

http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3719

When the CPLBs get a miss, we do:
  - find a victim in the HW table
  - remove the victim
  - find the replacement in the software table
  - put it into the HW table.

If we can't find a replacement in the software table, we accidently
leave a duplicate in the HW table. This patch ensures that duplicate
is marked as not valid.

What we should do is find the replacement in the software table, before
we find a victim in the HW table - but its too late in the release cycle
to do that much restructuring of this code.

Rather that duplicate code, connect Hardware Errors (irq5) into trap_c,
so user space processes get killed properly.

The rest of irq_panic() can be moved into traps.c (later)

There is still a small corner case that causes problems when a
pheriperal interrupt goes off a single cycle before a user space
hardware error. This causes a kernel panic, rather than the user
space process being killed.

But, this checkin makes things work in 99.9% of the cases, and is a vast
improvement from what is there today (which fails 100% of the time).

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/traps.c          | 54 +++++++++++++++++++++++++++++------
 arch/blackfin/mach-common/cplbmgr.S   | 22 ++++++++++++--
 arch/blackfin/mach-common/interrupt.S | 40 +++++++++++++++++++-------
 arch/blackfin/mach-common/irqpanic.c  | 50 --------------------------------
 include/asm-blackfin/traps.h          |  4 +++
 5 files changed, 99 insertions(+), 71 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 21a55ef19cbd..4be5ff0be60f 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -433,6 +433,36 @@ asmlinkage void trap_c(struct pt_regs *fp)
 	/* 0x3D - Reserved, Caught by default */
 	/* 0x3E - Reserved, Caught by default */
 	/* 0x3F - Reserved, Caught by default */
+	case VEC_HWERR:
+		info.si_code = BUS_ADRALN;
+		sig = SIGBUS;
+		switch (fp->seqstat & SEQSTAT_HWERRCAUSE) {
+		/* System MMR Error */
+		case (SEQSTAT_HWERRCAUSE_SYSTEM_MMR):
+			info.si_code = BUS_ADRALN;
+			sig = SIGBUS;
+			printk(KERN_NOTICE HWC_x2(KERN_NOTICE));
+			break;
+		/* External Memory Addressing Error */
+		case (SEQSTAT_HWERRCAUSE_EXTERN_ADDR):
+			info.si_code = BUS_ADRERR;
+			sig = SIGBUS;
+			printk(KERN_NOTICE HWC_x3(KERN_NOTICE));
+			break;
+		/* Performance Monitor Overflow */
+		case (SEQSTAT_HWERRCAUSE_PERF_FLOW):
+			printk(KERN_NOTICE HWC_x12(KERN_NOTICE));
+			break;
+		/* RAISE 5 instruction */
+		case (SEQSTAT_HWERRCAUSE_RAISE_5):
+			printk(KERN_NOTICE HWC_x18(KERN_NOTICE));
+			break;
+		default:        /* Reserved */
+			printk(KERN_NOTICE HWC_default(KERN_NOTICE));
+			break;
+		}
+		CHK_DEBUGGER_TRAP();
+		break;
 	default:
 		info.si_code = TRAP_ILLTRAP;
 		sig = SIGTRAP;
@@ -447,7 +477,11 @@ asmlinkage void trap_c(struct pt_regs *fp)
 	if (sig != SIGTRAP) {
 		unsigned long stack;
 		dump_bfin_process(fp);
-		dump_bfin_mem((void *)fp->retx);
+		/* Is it an interrupt, or an exception? */
+		if (trapnr == VEC_HWERR)
+			dump_bfin_mem((void *)fp->pc);
+		else
+			dump_bfin_mem((void *)fp->retx);
 		show_regs(fp);
 
 		/* Print out the trace buffer if it makes sense */
@@ -672,12 +706,11 @@ void dump_bfin_mem(void *retaddr)
 			 * context, which should mean an oops is happening
 			 */
 			if (oops_in_progress && x >= 0x0040 && x <= 0x0047 && i <= 0)
-				panic("\n\nWARNING : You should reconfigure"
+				printk(KERN_EMERG "\n"
+					KERN_EMERG "WARNING : You should reconfigure"
 					" the kernel to turn on\n"
-					" 'Hardware error interrupt"
-					" debugging'\n"
-					" The rest of this error"
-					" is meanless\n");
+					KERN_EMERG " 'Hardware error interrupt debugging'\n"
+					KERN_EMERG " The rest of this error is meanless\n");
 #endif
 			if (i == (unsigned int)retaddr)
 				printk("[%04x]", x);
@@ -698,6 +731,10 @@ void show_regs(struct pt_regs *fp)
 	printk(KERN_NOTICE "\n" KERN_NOTICE "SEQUENCER STATUS:\n");
 	printk(KERN_NOTICE " SEQSTAT: %08lx  IPEND: %04lx  SYSCFG: %04lx\n",
 		(long)fp->seqstat, fp->ipend, fp->syscfg);
+	printk(KERN_NOTICE "  HWERRCAUSE: 0x%lx\n",
+		(fp->seqstat & SEQSTAT_HWERRCAUSE) >> 14);
+	printk(KERN_NOTICE "  EXCAUSE   : 0x%lx\n",
+		fp->seqstat & SEQSTAT_EXCAUSE);
 
 	decode_address(buf, fp->rete);
 	printk(KERN_NOTICE " RETE: %s\n", buf);
@@ -708,9 +745,10 @@ void show_regs(struct pt_regs *fp)
 	decode_address(buf, fp->rets);
 	printk(KERN_NOTICE " RETS: %s\n", buf);
 	decode_address(buf, fp->pc);
-	printk(KERN_NOTICE " PC: %s\n", buf);
+	printk(KERN_NOTICE " PC  : %s\n", buf);
 
-	if ((long)fp->seqstat & SEQSTAT_EXCAUSE) {
+	if (((long)fp->seqstat &  SEQSTAT_EXCAUSE) &&
+	    (((long)fp->seqstat & SEQSTAT_EXCAUSE) != VEC_HWERR)) {
 		decode_address(buf, bfin_read_DCPLB_FAULT_ADDR());
 		printk(KERN_NOTICE "DCPLB_FAULT_ADDR: %s\n", buf);
 		decode_address(buf, bfin_read_ICPLB_FAULT_ADDR());
diff --git a/arch/blackfin/mach-common/cplbmgr.S b/arch/blackfin/mach-common/cplbmgr.S
index faca1ab344d2..f5cf3accef37 100644
--- a/arch/blackfin/mach-common/cplbmgr.S
+++ b/arch/blackfin/mach-common/cplbmgr.S
@@ -190,7 +190,14 @@ ENTRY(_cplb_mgr)
 	[P0 - 4] = R0;
 	R0 = [P0 - 0x100];
 	[P0-0x104] = R0;
-.Lie_move:P0+=4;
+.Lie_move:
+	P0+=4;
+
+	/* Clear ICPLB_DATA15, in case we don't find a replacement
+	 * otherwise, we would have a duplicate entry, and will crash
+	 */
+	R0 = 0;
+	[P0 - 4] = R0;
 
 	/* We've made space in the ICPLB table, so that ICPLB15
 	 * is now free to be overwritten. Next, we have to determine
@@ -515,14 +522,23 @@ ENTRY(_cplb_mgr)
 	R0 = [P0++];	/* move data */
 	[P0 - 8] = R0;
 	R0 = [P0-0x104]	/* move address */
-.Lde_move: [P0-0x108] = R0;
+.Lde_move:
+	 [P0-0x108] = R0;
+
+.Lde_moved:
+	NOP;
+
+	/* Clear DCPLB_DATA15, in case we don't find a replacement
+	 * otherwise, we would have a duplicate entry, and will crash
+	 */
+	R0 = 0;
+	[P0 - 0x4] = R0;
 
 	/* We've now made space in DCPLB15 for the new CPLB to be
 	 * installed. The next stage is to locate a CPLB in the
 	 * config table that covers the faulting address.
 	 */
 
-.Lde_moved:NOP;
 	R0 = I0;		/* Our faulting address */
 
 	P2.L = _dpdt_table;
diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S
index 4de376418a18..f983ac7ea352 100644
--- a/arch/blackfin/mach-common/interrupt.S
+++ b/arch/blackfin/mach-common/interrupt.S
@@ -34,9 +34,13 @@
 #include <asm/entry.h>
 #include <asm/asm-offsets.h>
 #include <asm/trace.h>
+#include <asm/traps.h>
+#include <asm/thread_info.h>
 
 #include <asm/mach-common/context.S>
 
+.extern _ret_from_exception
+
 #ifdef CONFIG_I_ENTRY_L1
 .section .l1.text
 #else
@@ -134,10 +138,11 @@ __common_int_entry:
 
 /* interrupt routine for ivhw - 5 */
 ENTRY(_evt_ivhw)
-	SAVE_CONTEXT
+	SAVE_ALL_SYS
 #ifdef CONFIG_FRAME_POINTER
 	fp = 0;
 #endif
+
 #if ANOMALY_05000283
 	cc = r7 == r7;
 	p5.h = 0xffc0;
@@ -147,13 +152,8 @@ ENTRY(_evt_ivhw)
 1:
 #endif
 
-	trace_buffer_stop(p0, r0);
-
-	r0 = IRQ_HWERR;
-	r1 = sp;
-
 #ifdef CONFIG_HARDWARE_PM
-	r7 = SEQSTAT;
+	r7 = [sp + PT_SEQSTAT];
 	r7 = r7 >>> 0xe;
 	r6 = 0x1F;
 	r7 = r7 & r6;
@@ -161,11 +161,29 @@ ENTRY(_evt_ivhw)
 	cc = r7 == r5;
 	if cc jump .Lcall_do_ovf; /* deal with performance counter overflow */
 #endif
-
+	# We are going to dump something out, so make sure we print IPEND properly
+	p2.l = lo(IPEND);
+	p2.h = hi(IPEND);
+	r0 = [p2];
+	[sp + PT_IPEND] = r0;
+
+	/* set the EXCAUSE to HWERR for trap_c */
+	r0 = [sp + PT_SEQSTAT];
+	R1.L = LO(VEC_HWERR);
+	R1.H = HI(VEC_HWERR);
+	R0 = R0 | R1;
+	[sp + PT_SEQSTAT] = R0;
+
+	r0 = sp;        /* stack frame pt_regs pointer argument ==> r0 */
 	SP += -12;
-	call _irq_panic;
+	call _trap_c;
 	SP += 12;
+
+	call _ret_from_exception;
+.Lcommon_restore_all_sys:
+	RESTORE_ALL_SYS
 	rti;
+
 #ifdef CONFIG_HARDWARE_PM
 .Lcall_do_ovf:
 
@@ -173,9 +191,11 @@ ENTRY(_evt_ivhw)
 	call _pm_overflow;
 	SP += 12;
 
-	jump .Lcommon_restore_context;
+	jump .Lcommon_restore_all_sys;
 #endif
 
+ENDPROC(_evt_ivhw)
+
 /* Interrupt routine for evt2 (NMI).
  * We don't actually use this, so just return.
  * For inner circle type details, please see:
diff --git a/arch/blackfin/mach-common/irqpanic.c b/arch/blackfin/mach-common/irqpanic.c
index b22959b197e5..606ded9ff4e1 100644
--- a/arch/blackfin/mach-common/irqpanic.c
+++ b/arch/blackfin/mach-common/irqpanic.c
@@ -46,9 +46,6 @@ void irq_panic(int reason, struct pt_regs *regs) __attribute__ ((l1_text));
  */
 asmlinkage void irq_panic(int reason, struct pt_regs *regs)
 {
-	int sig = 0;
-	siginfo_t info;
-
 #ifdef CONFIG_DEBUG_ICACHE_CHECK
 	unsigned int cmd, tag, ca, cache_hi, cache_lo, *pa;
 	unsigned short i, j, die;
@@ -136,53 +133,6 @@ asmlinkage void irq_panic(int reason, struct pt_regs *regs)
 	}
 #endif
 
-	printk(KERN_EMERG "\n");
-	printk(KERN_EMERG "Exception: IRQ 0x%x entered\n", reason);
-	printk(KERN_EMERG " code=[0x%08lx],   stack frame=0x%08lx,  "
-	    " bad PC=0x%08lx\n",
-	    (unsigned long)regs->seqstat,
-	    (unsigned long)regs,
-	    (unsigned long)regs->pc);
-	if (reason == 0x5) {
-		printk(KERN_EMERG "----------- HARDWARE ERROR -----------\n");
-
-		/* There is only need to check for Hardware Errors, since other
-		 * EXCEPTIONS are handled in TRAPS.c (MH)
-		 */
-		switch (regs->seqstat & SEQSTAT_HWERRCAUSE) {
-		case (SEQSTAT_HWERRCAUSE_SYSTEM_MMR):	/* System MMR Error */
-			info.si_code = BUS_ADRALN;
-			sig = SIGBUS;
-			printk(KERN_EMERG HWC_x2(KERN_EMERG));
-			break;
-		case (SEQSTAT_HWERRCAUSE_EXTERN_ADDR):	/* External Memory Addressing Error */
-			info.si_code = BUS_ADRERR;
-			sig = SIGBUS;
-			printk(KERN_EMERG HWC_x3(KERN_EMERG));
-			break;
-		case (SEQSTAT_HWERRCAUSE_PERF_FLOW):	/* Performance Monitor Overflow */
-			printk(KERN_EMERG HWC_x12(KERN_EMERG));
-			break;
-		case (SEQSTAT_HWERRCAUSE_RAISE_5):	/* RAISE 5 instruction */
-			printk(KERN_EMERG HWC_x18(KERN_EMERG));
-			break;
-		default:	/* Reserved */
-			printk(KERN_EMERG HWC_default(KERN_EMERG));
-			break;
-		}
-	}
-
-	regs->ipend = bfin_read_IPEND();
-	dump_bfin_process(regs);
-	dump_bfin_mem((void *)regs->pc);
-	show_regs(regs);
-	if (0 == (info.si_signo = sig) || 0 == user_mode(regs))	/* in kernelspace */
-		panic("Unhandled IRQ or exceptions!\n");
-	else {			/* in userspace */
-		info.si_errno = 0;
-		info.si_addr = (void *)regs->pc;
-		force_sig_info(sig, &info, current);
-	}
 }
 
 #ifdef CONFIG_HARDWARE_PM
diff --git a/include/asm-blackfin/traps.h b/include/asm-blackfin/traps.h
index ee1cbf73a9ab..f0e5f940d9ca 100644
--- a/include/asm-blackfin/traps.h
+++ b/include/asm-blackfin/traps.h
@@ -45,6 +45,10 @@
 #define VEC_CPLB_I_M	(44)
 #define VEC_CPLB_I_MHIT	(45)
 #define VEC_ILL_RES	(46)	/* including unvalid supervisor mode insn */
+/* The hardware reserves (63) for future use - we use it to tell our
+ * normal exception handling code we have a hardware error
+ */
+#define VEC_HWERR	(63)
 
 #ifndef __ASSEMBLY__
 
-- 
cgit v1.2.3-59-g8ed1b


From d8f66c8c1ea8e948483ee4739ad91120f5f7de51 Mon Sep 17 00:00:00 2001
From: Robin Getz <robin.getz@analog.com>
Date: Mon, 24 Dec 2007 15:27:56 +0800
Subject: [Blackfin] arch: fix bug gdb testing on hardware has regression

http://blackfin.uclinux.org/gf/project/toolchain/tracker/?action=TrackerItemEdit&tracker_item_id=3651

As Bernd predicted, this was only necessary because of other
problems in the kenel - fixing those, and this is not necessary, so
remove it.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/traps.c | 37 ++++++++++++++++++++++++++++++-------
 1 file changed, 30 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 4be5ff0be60f..8bbfef31666b 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -36,6 +36,7 @@
 #include <asm/cacheflush.h>
 #include <asm/blackfin.h>
 #include <asm/irq_handler.h>
+#include <linux/irq.h>
 #include <asm/trace.h>
 #include <asm/fixed_code.h>
 
@@ -508,13 +509,6 @@ asmlinkage void trap_c(struct pt_regs *fp)
 	info.si_addr = (void *)fp->pc;
 	force_sig_info(sig, &info, current);
 
-	/* Ensure that bad return addresses don't end up in an infinite
-	 * loop, due to speculative loads/reads. This needs to be done after
-	 * the signal has been sent.
-	 */
-	if (trapnr == VEC_CPLB_I_M && sig != SIGTRAP)
-		fp->pc = SAFE_USER_INSTRUCTION;
-
 	trace_buffer_restore(j);
 	return;
 }
@@ -727,6 +721,9 @@ void dump_bfin_mem(void *retaddr)
 void show_regs(struct pt_regs *fp)
 {
 	char buf [150];
+	struct irqaction *action;
+	unsigned int i;
+	unsigned long flags;
 
 	printk(KERN_NOTICE "\n" KERN_NOTICE "SEQUENCER STATUS:\n");
 	printk(KERN_NOTICE " SEQSTAT: %08lx  IPEND: %04lx  SYSCFG: %04lx\n",
@@ -735,6 +732,32 @@ void show_regs(struct pt_regs *fp)
 		(fp->seqstat & SEQSTAT_HWERRCAUSE) >> 14);
 	printk(KERN_NOTICE "  EXCAUSE   : 0x%lx\n",
 		fp->seqstat & SEQSTAT_EXCAUSE);
+	for (i = 6; i <= 15 ; i++) {
+		if (fp->ipend & (1 << i)) {
+			decode_address(buf, bfin_read32(EVT0 + 4*i));
+			printk(KERN_NOTICE "  physical IVG%i asserted : %s\n", i, buf);
+		}
+	}
+
+	/* if no interrupts are going off, don't print this out */
+	if (fp->ipend & ~0x3F) {
+		for (i = 0; i < (NR_IRQS - 1); i++) {
+			spin_lock_irqsave(&irq_desc[i].lock, flags);
+			action = irq_desc[i].action;
+			if (!action)
+				goto unlock;
+
+			decode_address(buf, (unsigned int)action->handler);
+			printk(KERN_NOTICE "  logical irq %3d mapped  : %s", i, buf);
+			for (action = action->next; action; action = action->next) {
+				decode_address(buf, (unsigned int)action->handler);
+				printk(", %s", buf);
+			}
+			printk("\n");
+unlock:
+			spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+		}
+	}
 
 	decode_address(buf, fp->rete);
 	printk(KERN_NOTICE " RETE: %s\n", buf);
-- 
cgit v1.2.3-59-g8ed1b


From 0626d79686b4536eac1dc88e2cf52d927a5010c2 Mon Sep 17 00:00:00 2001
From: Robin Getz <robin.getz@analog.com>
Date: Fri, 21 Dec 2007 17:46:33 +0800
Subject: [Blackfin] arch: do not use hard coded addresses

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-common/interrupt.S | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S
index f983ac7ea352..7f752c87fe46 100644
--- a/arch/blackfin/mach-common/interrupt.S
+++ b/arch/blackfin/mach-common/interrupt.S
@@ -121,8 +121,8 @@ __common_int_entry:
 
 #if ANOMALY_05000283 || ANOMALY_05000315
 	cc = r7 == r7;
-	p5.h = 0xffc0;
-	p5.l = 0x0014;
+	p5.h = HI(CHIPID);
+	p5.l = LO(CHIPID);
 	if cc jump 1f;
 	r7.l = W[p5];
 1:
@@ -145,8 +145,8 @@ ENTRY(_evt_ivhw)
 
 #if ANOMALY_05000283
 	cc = r7 == r7;
-	p5.h = 0xffc0;
-	p5.l = 0x0014;
+	p5.h = HI(CHIPID);
+	p5.l = LO(CHIPID);
 	if cc jump 1f;
 	r7.l = W[p5];
 1:
-- 
cgit v1.2.3-59-g8ed1b


From 6f3ed704b03b2f9997b604690ac43a3514105a6a Mon Sep 17 00:00:00 2001
From: Robin Getz <robin.getz@analog.com>
Date: Fri, 21 Dec 2007 17:48:07 +0800
Subject: [Blackfin] arch: do not use fixed numbers to describe offsets - no
 functional changes

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-common/entry.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index dc9d3ee2e691..1b25b57c8c05 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -329,7 +329,7 @@ ENTRY(_exception_to_level5)
 	R7 = R7 + R6;
 	P5 = R7;
 	R1 = [P5];
-	[SP + 8] = r1;
+	[SP + PT_SEQSTAT] = r1;
 
 	r0 = sp; 	/* stack frame pt_regs pointer argument ==> r0 */
 	SP += -12;
-- 
cgit v1.2.3-59-g8ed1b


From d5c4b5e3b2682a9aac07a43a8a79d3b692b22567 Mon Sep 17 00:00:00 2001
From: Robin Getz <robin.getz@analog.com>
Date: Fri, 21 Dec 2007 17:49:53 +0800
Subject: [Blackfin] arch: Let the pre-processor do the math to save a few
 cycles - no functional changes

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-common/entry.S | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 1b25b57c8c05..58f7ad617992 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -633,9 +633,7 @@ ENTRY(_ret_from_exception)
 	[sp + PT_IPEND] = r0;
 
 1:
-	r1 = 0x37(Z);
-	r2 = ~r1;
-	r2.h = 0;
+	r2 = LO(~0x37) (Z);
 	r0 = r2 & r0;
 	cc = r0 == 0;
 	if !cc jump 4f;	/* if not return to user mode, get out */
-- 
cgit v1.2.3-59-g8ed1b


From fb96c56de33def1484614c6a3d0fbef76595ce2f Mon Sep 17 00:00:00 2001
From: Javier Herrero <jherrero@hvsistemas.es>
Date: Fri, 21 Dec 2007 18:26:44 +0800
Subject: [Blackfin] arch: Added support for 8250-class UARTs in HV Sistemas
 H8606 board, modification in 8250.c driver for correct compilation with
 Blackfin

Signed-off-by: Javier Herrero <jherrero@hvsistemas.es>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf533/boards/H8606.c | 51 +++++++++++++++++++++++++++++++--
 1 file changed, 49 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf533/boards/H8606.c b/arch/blackfin/mach-bf533/boards/H8606.c
index 6bcf4047f89c..675fd1c62805 100644
--- a/arch/blackfin/mach-bf533/boards/H8606.c
+++ b/arch/blackfin/mach-bf533/boards/H8606.c
@@ -40,6 +40,7 @@
 #endif
 #include <linux/pata_platform.h>
 #include <linux/irq.h>
+
 #include <asm/dma.h>
 #include <asm/bfin5xx_spi.h>
 #include <asm/reboot.h>
@@ -303,7 +304,49 @@ static struct platform_device bfin_uart_device = {
 };
 #endif
 
-static struct platform_device *stamp_devices[] __initdata = {
+#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
+
+#include <linux/serial_8250.h>
+#include <linux/serial.h>
+
+/*
+ * Configuration for two 16550 UARTS in FPGA at addresses 0x20200000 and 0x202000010.
+ * running at half system clock, both with interrupt output or-ed to PF8. Change to
+ * suit different FPGA configuration, or to suit real 16550 UARTS connected to the bus
+ */
+
+static struct plat_serial8250_port serial8250_platform_data [] = {
+	{
+		.membase = 0x20200000,
+		.mapbase = 0x20200000,
+		.irq = IRQ_PF8,
+		.flags = UPF_BOOT_AUTOCONF | UART_CONFIG_TYPE,
+		.iotype = UPIO_MEM,
+		.regshift = 1,
+		.uartclk = 66666667,
+	}, {
+		.membase = 0x20200010,
+		.mapbase = 0x20200010,
+		.irq = IRQ_PF8,
+		.flags = UPF_BOOT_AUTOCONF | UART_CONFIG_TYPE,
+		.iotype = UPIO_MEM,
+		.regshift = 1,
+		.uartclk = 66666667,
+	}, {
+	}
+};
+
+static struct platform_device serial8250_device = {
+	.id		= PLAT8250_DEV_PLATFORM,
+	.name		= "serial8250",
+	.dev		= {
+		.platform_data = serial8250_platform_data,
+	},
+};
+
+#endif
+
+static struct platform_device *h8606_devices[] __initdata = {
 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 	&rtc_device,
 #endif
@@ -327,13 +370,17 @@ static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 	&bfin_uart_device,
 #endif
+
+#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
+	&serial8250_device,
+#endif
 };
 
 static int __init H8606_init(void)
 {
 	printk(KERN_INFO "HV Sistemas H8606 board support by http://www.hvsistemas.com\n");
 	printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__);
-	platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
+	platform_add_devices(h8606_devices, ARRAY_SIZE(h8606_devices));
 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From c50e19f49830fb651b4b702ad2c3abcdf110b576 Mon Sep 17 00:00:00 2001
From: Yi Li <yi.li@analog.com>
Date: Fri, 21 Dec 2007 21:12:21 +0800
Subject: [Blackfin] arch: fix bug - make memcpy return the dest addr.

The memcpy() function returns the src pointer instead of the dst pointer.
This patch fix this bug.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/lib/memcpy.S | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/lib/memcpy.S b/arch/blackfin/lib/memcpy.S
index 2e6336492b4b..e654a18a0754 100644
--- a/arch/blackfin/lib/memcpy.S
+++ b/arch/blackfin/lib/memcpy.S
@@ -70,8 +70,8 @@ ENTRY(_memcpy)
 	/* Check for aligned data.*/
 
 	R3 = R1 | R0;
-	R0 = 0x3;
-	R3 = R3 & R0;
+	R1 = 0x3;
+	R3 = R3 & R1;
 	CC = R3;	/* low bits set on either address? */
 	IF CC JUMP .Lnot_aligned;
 
@@ -83,7 +83,6 @@ ENTRY(_memcpy)
 	/* less than eight bytes... */
 	P2 = R2;
 	LSETUP(.Lthree_start, .Lthree_end) LC0=P2;
-	R0 = R1;	/* setup src address for return */
 .Lthree_start:
 	R3 = B[P1++] (X);
 .Lthree_end:
@@ -95,7 +94,6 @@ ENTRY(_memcpy)
 	/* There's at least eight bytes to copy. */
 	P2 += -1;	/* because we unroll one iteration */
 	LSETUP(.Lword_loops, .Lword_loope) LC0=P2;
-	R0 = R1;
 	I1 = P1;
 	R3 = [I1++];
 #if ANOMALY_05000202
@@ -120,7 +118,6 @@ ENTRY(_memcpy)
 .Lnot_aligned:
 	/* From here, we're copying byte-by-byte. */
 	LSETUP (.Lbyte_start, .Lbyte_end) LC0=P2;
-	R0 = R1;	/* Save src address for return */
 .Lbyte_start:
 	R1 = B[P1++] (X);
 .Lbyte_end:
@@ -135,7 +132,6 @@ ENTRY(_memcpy)
 	 * Don't bother to work out alignment for
 	 * the reverse case.
 	 */
-	R0 = R1;	/* save src for later. */
 	P0 = P0 + P2;
 	P0 += -1;
 	P1 = P1 + P2;
-- 
cgit v1.2.3-59-g8ed1b


From fb5f00492a748facc9f069c95621e05c148edf53 Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Sun, 23 Dec 2007 23:02:13 +0800
Subject: [Blackfin] arch: Fix bug to Enable kernel to build for bf548 with PM.

On BF548-EZKIT, build kernel faills with power management, video and audio enabled.
This patch fix this.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/Kconfig                      |  2 ++
 arch/blackfin/mach-bf548/head.S            |  8 +++---
 arch/blackfin/mach-bf548/ints-priority.c   |  2 +-
 arch/blackfin/mach-common/dpmc.S           | 46 ++++++++++++++++++++++++------
 arch/blackfin/mach-common/pm.c             | 16 +++++++++++
 include/asm-blackfin/mach-bf548/irq.h      |  4 +--
 include/asm-blackfin/mach-bf548/mem_init.h |  1 +
 7 files changed, 64 insertions(+), 15 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 25232ba08119..5ebcfd226ed8 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -951,6 +951,8 @@ config PM_WAKEUP_SIC_IWR
 	depends on PM_WAKEUP_GPIO_BY_SIC_IWR
 	default 0x80000000 if (BF537 || BF536 || BF534)
 	default 0x100000 if (BF533 || BF532 || BF531)
+	default 0x800000 if (BF549 || BF548 || BF547 || BF542)
+	default 0x800000 if (BF527 || BF524 || BF522)
 
 config PM_WAKEUP_GPIO_NUMBER
 	int "Wakeup GPIO number"
diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S
index 74b34c7f3629..745662e88759 100644
--- a/arch/blackfin/mach-bf548/head.S
+++ b/arch/blackfin/mach-bf548/head.S
@@ -298,8 +298,8 @@ ENTRY(_start_dma_code)
 	w[p0] = r0.l;
 	ssync;
 
-	p0.h = hi(SIC_IWR);
-	p0.l = lo(SIC_IWR);
+	p0.h = hi(SIC_IWR0);
+	p0.l = lo(SIC_IWR0);
 	r0.l = 0x1;
 	r0.h = 0x0;
 	[p0] = r0;
@@ -395,8 +395,8 @@ ENTRY(_start_dma_code)
 	[P2] = R1;
 	SSYNC;
 
-	p0.h = hi(SIC_IWR);
-	p0.l = lo(SIC_IWR);
+	p0.h = hi(SIC_IWR0);
+	p0.l = lo(SIC_IWR0);
 	r0.l = lo(IWR_ENABLE_ALL);
 	r0.h = hi(IWR_ENABLE_ALL);
 	[p0] = r0;
diff --git a/arch/blackfin/mach-bf548/ints-priority.c b/arch/blackfin/mach-bf548/ints-priority.c
index cb0ebac53c79..05e3b3cb4c0a 100644
--- a/arch/blackfin/mach-bf548/ints-priority.c
+++ b/arch/blackfin/mach-bf548/ints-priority.c
@@ -58,7 +58,7 @@ void program_IAR(void)
 			    ((CONFIG_IRQ_PINT1 - 7) << IRQ_PINT1_POS) |
 			    ((CONFIG_IRQ_MDMAS0 - 7) << IRQ_MDMAS0_POS) |
 			    ((CONFIG_IRQ_MDMAS1 - 7) << IRQ_MDMAS1_POS) |
-			    ((CONFIG_IRQ_WATCHDOG - 7) << IRQ_WATCHDOG_POS));
+			    ((CONFIG_IRQ_WATCHDOG - 7) << IRQ_WATCH_POS));
 
 	bfin_write_SIC_IAR3(((CONFIG_IRQ_DMAC1_ERR - 7) << IRQ_DMAC1_ERR_POS) |
 			    ((CONFIG_IRQ_SPORT2_ERR - 7) << IRQ_SPORT2_ERR_POS) |
diff --git a/arch/blackfin/mach-common/dpmc.S b/arch/blackfin/mach-common/dpmc.S
index 39fbc2861107..301ac1b6681f 100644
--- a/arch/blackfin/mach-common/dpmc.S
+++ b/arch/blackfin/mach-common/dpmc.S
@@ -38,6 +38,9 @@ ENTRY(_unmask_wdog_wakeup_evt)
 #if defined(CONFIG_BF561)
 	P0.H = hi(SICA_IWR1);
 	P0.L = lo(SICA_IWR1);
+#elif defined(CONFIG_BF54x) || defined(CONFIG_BF52x)
+	P0.h = HI(SIC_IWR0);
+	P0.l = LO(SIC_IWR0);
 #else
 	P0.h = HI(SIC_IWR);
 	P0.l = LO(SIC_IWR);
@@ -236,7 +239,7 @@ ENTRY(_deep_sleep)
 
 	call _set_sic_iwr;
 
-	call _set_sdram_srfs;
+	call _set_dram_srfs;
 
 	/* Clear all the interrupts,bits sticky */
 	R0 = 0xFFFF (Z);
@@ -253,7 +256,7 @@ ENTRY(_deep_sleep)
 	SSYNC;
 	IDLE;
 
-	call _unset_sdram_srfs;
+	call _unset_dram_srfs;
 
 	call _test_pll_locked;
 
@@ -285,7 +288,7 @@ ENTRY(_sleep_deeper)
 	P3 = R0;
 	R0 = IWR_ENABLE(0);
 	call _set_sic_iwr;
-	call _set_sdram_srfs;
+	call _set_dram_srfs;
 
 	/* Clear all the interrupts,bits sticky */
 	R0 = 0xFFFF (Z);
@@ -360,7 +363,7 @@ ENTRY(_sleep_deeper)
 	IDLE;
 	call _test_pll_locked;
 
-	call _unset_sdram_srfs;
+	call _unset_dram_srfs;
 
 	STI R4;
 
@@ -368,25 +371,47 @@ ENTRY(_sleep_deeper)
 	( R7:0, P5:0 ) = [SP++];
 	RTS;
 
-ENTRY(_set_sdram_srfs)
-	/*  set the sdram to self refresh mode */
+ENTRY(_set_dram_srfs)
+	/*  set the dram to self refresh mode */
+#if defined(CONFIG_BF54x)
+	P0.H = hi(EBIU_RSTCTL);
+	P0.L = lo(EBIU_RSTCTL);
+	R2 = [P0];
+	R3.H = hi(SRREQ);
+	R3.L = lo(SRREQ);
+#else
 	P0.H = hi(EBIU_SDGCTL);
 	P0.L = lo(EBIU_SDGCTL);
 	R2 = [P0];
 	R3.H = hi(SRFS);
 	R3.L = lo(SRFS);
+#endif
 	R2 = R2|R3;
 	[P0] = R2;
 	ssync;
+#if defined(CONFIG_BF54x)
+.LSRR_MODE:
+	R2 = [P0];
+	CC = BITTST(R2, 4);
+	if !CC JUMP .LSRR_MODE;
+#endif
 	RTS;
 
-ENTRY(_unset_sdram_srfs)
-	/*  set the sdram out of self refresh mode */
+ENTRY(_unset_dram_srfs)
+	/*  set the dram out of self refresh mode */
+#if defined(CONFIG_BF54x)
+	P0.H = hi(EBIU_RSTCTL);
+	P0.L = lo(EBIU_RSTCTL);
+	R2 = [P0];
+	R3.H = hi(SRREQ);
+	R3.L = lo(SRREQ);
+#else
 	P0.H = hi(EBIU_SDGCTL);
 	P0.L = lo(EBIU_SDGCTL);
 	R2 = [P0];
 	R3.H = hi(SRFS);
 	R3.L = lo(SRFS);
+#endif
 	R3 = ~R3;
 	R2 = R2&R3;
 	[P0] = R2;
@@ -394,8 +419,13 @@ ENTRY(_unset_sdram_srfs)
 	RTS;
 
 ENTRY(_set_sic_iwr)
+#if defined(CONFIG_BF54x) || defined(CONFIG_BF52x)
+	P0.H = hi(SIC_IWR0);
+	P0.L = lo(SIC_IWR0);
+#else
 	P0.H = hi(SIC_IWR);
 	P0.L = lo(SIC_IWR);
+#endif
 	[P0] = R0;
 	SSYNC;
 	RTS;
diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c
index dac51fb06f22..81930f7d06f1 100644
--- a/arch/blackfin/mach-common/pm.c
+++ b/arch/blackfin/mach-common/pm.c
@@ -77,7 +77,15 @@ void bfin_pm_suspend_standby_enter(void)
 
 		gpio_pm_restore();
 
+#if defined(CONFIG_BF54x) || defined(CONFIG_BF52x)
+		bfin_write_SIC_IWR0(IWR_ENABLE_ALL);
+		bfin_write_SIC_IWR1(IWR_ENABLE_ALL);
+# ifdef CONFIG_BF54x
+		bfin_write_SIC_IWR2(IWR_ENABLE_ALL);
+# endif
+#else
 		bfin_write_SIC_IWR(IWR_ENABLE_ALL);
+#endif
 
 		local_irq_restore(flags);
 	}
@@ -85,7 +93,15 @@ void bfin_pm_suspend_standby_enter(void)
 
 #if defined(CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR)
 	sleep_deeper(CONFIG_PM_WAKEUP_SIC_IWR);
+# if defined(CONFIG_BF54x) || defined(CONFIG_BF52x)
+	bfin_write_SIC_IWR0(IWR_ENABLE_ALL);
+	bfin_write_SIC_IWR1(IWR_ENABLE_ALL);
+#  ifdef CONFIG_BF54x
+	bfin_write_SIC_IWR2(IWR_ENABLE_ALL);
+#  endif
+# else
 	bfin_write_SIC_IWR(IWR_ENABLE_ALL);
+# endif
 #endif				/* CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR */
 }
 
diff --git a/include/asm-blackfin/mach-bf548/irq.h b/include/asm-blackfin/mach-bf548/irq.h
index 9fb7bc5399a8..c34507a3f1df 100644
--- a/include/asm-blackfin/mach-bf548/irq.h
+++ b/include/asm-blackfin/mach-bf548/irq.h
@@ -88,7 +88,7 @@ Events         (highest priority)  EMU         0
 #define IRQ_PINT1		BFIN_IRQ(20)	/* PINT1 Interrupt */
 #define IRQ_MDMAS0		BFIN_IRQ(21)	/* MDMA Stream 0 Interrupt */
 #define IRQ_MDMAS1		BFIN_IRQ(22)	/* MDMA Stream 1 Interrupt */
-#define IRQ_WATCHDOG		BFIN_IRQ(23)	/* Watchdog Interrupt */
+#define IRQ_WATCH		BFIN_IRQ(23)	/* Watchdog Interrupt */
 #define IRQ_DMAC1_ERROR		BFIN_IRQ(24)	/* DMAC1 Status (Error) Interrupt */
 #define IRQ_SPORT2_ERROR	BFIN_IRQ(25)	/* SPORT2 Error Interrupt */
 #define IRQ_SPORT3_ERROR	BFIN_IRQ(26)	/* SPORT3 Error Interrupt */
@@ -406,7 +406,7 @@ Events         (highest priority)  EMU         0
 #define IRQ_PINT1_POS		16
 #define IRQ_MDMAS0_POS		20
 #define IRQ_MDMAS1_POS		24
-#define IRQ_WATCHDOG_POS	28
+#define IRQ_WATCH_POS		28
 
 /* IAR3 BIT FIELDS */
 #define IRQ_DMAC1_ERR_POS	0
diff --git a/include/asm-blackfin/mach-bf548/mem_init.h b/include/asm-blackfin/mach-bf548/mem_init.h
index 0cb279e973d7..e792eb7ae6a0 100644
--- a/include/asm-blackfin/mach-bf548/mem_init.h
+++ b/include/asm-blackfin/mach-bf548/mem_init.h
@@ -30,6 +30,7 @@
  */
 
 #if (CONFIG_MEM_MT46V32M16)
+#endif
 
 #if defined CONFIG_CLKIN_HALF
 #define CLKIN_HALF       1
-- 
cgit v1.2.3-59-g8ed1b


From 0d4a89bb3eb58f39831186fa6b1542893dbfdc9f Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Sun, 27 Jan 2008 19:58:46 +0800
Subject: [Blackfin] arch: add Hitachi TX09D70VM1CDA TFT LCD driver resource to
 Blackfin board

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf537/boards/cm_bf537.c | 10 ++++++++++
 arch/blackfin/mach-bf561/boards/cm_bf561.c | 11 +++++++++++
 2 files changed, 21 insertions(+)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537.c b/arch/blackfin/mach-bf537/boards/cm_bf537.c
index c0fb06dbc42e..a102615cac7c 100644
--- a/arch/blackfin/mach-bf537/boards/cm_bf537.c
+++ b/arch/blackfin/mach-bf537/boards/cm_bf537.c
@@ -216,6 +216,12 @@ static struct platform_device rtc_device = {
 };
 #endif
 
+#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
+static struct platform_device hitachi_fb_device = {
+	.name = "hitachi-tx09",
+};
+#endif
+
 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 static struct resource smc91x_resources[] = {
 	{
@@ -374,6 +380,10 @@ static struct platform_device bfin_pata_device = {
 #endif
 
 static struct platform_device *cm_bf537_devices[] __initdata = {
+#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
+	&hitachi_fb_device,
+#endif
+
 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 	&rtc_device,
 #endif
diff --git a/arch/blackfin/mach-bf561/boards/cm_bf561.c b/arch/blackfin/mach-bf561/boards/cm_bf561.c
index c19cd29b948a..3a79a9061bdc 100644
--- a/arch/blackfin/mach-bf561/boards/cm_bf561.c
+++ b/arch/blackfin/mach-bf561/boards/cm_bf561.c
@@ -198,6 +198,13 @@ static struct platform_device bfin_spi0_device = {
 #endif  /* spi master and devices */
 
 
+#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
+static struct platform_device hitachi_fb_device = {
+	.name = "hitachi-tx09",
+};
+#endif
+
+
 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 
 static struct resource smc91x_resources[] = {
@@ -315,6 +322,10 @@ static struct platform_device bfin_pata_device = {
 
 static struct platform_device *cm_bf561_devices[] __initdata = {
 
+#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
+	&hitachi_fb_device,
+#endif
+
 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 	&bfin_uart_device,
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From b03b08ba9c7235861adf4dde712dade0bb756fe0 Mon Sep 17 00:00:00 2001
From: Robin Getz <robin.getz@analog.com>
Date: Sun, 23 Dec 2007 22:57:01 +0800
Subject: [Blackfin] arch: Clean up dump_bfin_mem

Clean up dump_bfin_mem so that it will display
content from the kernel, as well as l1 instruction, when deferred
HW errors happen, print out the last frame info if it makes sense.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/early_printk.c |   2 +-
 arch/blackfin/kernel/process.c      |   1 +
 arch/blackfin/kernel/traps.c        | 132 +++++++++++++++++++++++-------------
 include/asm-blackfin/bfin-global.h  |   2 +-
 4 files changed, 87 insertions(+), 50 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/early_printk.c b/arch/blackfin/kernel/early_printk.c
index 724f4a5a1d46..c892777267d5 100644
--- a/arch/blackfin/kernel/early_printk.c
+++ b/arch/blackfin/kernel/early_printk.c
@@ -205,7 +205,7 @@ asmlinkage void __init early_trap_c(struct pt_regs *fp, void *retaddr)
 	if (likely(early_console == NULL))
 		setup_early_printk(DEFAULT_EARLY_PORT);
 
-	dump_bfin_mem((void *)fp->retx);
+	dump_bfin_mem(fp);
 	show_regs(fp);
 	dump_bfin_trace_buffer();
 
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 5bf15125f0d6..fff3dd9eadda 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -327,6 +327,7 @@ void finish_atomic_sections (struct pt_regs *regs)
 }
 
 #if defined(CONFIG_ACCESS_CHECK)
+/* Return 1 if access to memory range is OK, 0 otherwise */
 int _access_ok(unsigned long addr, unsigned long size)
 {
 	if (size == 0)
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 8bbfef31666b..c90f16825f98 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -39,6 +39,7 @@
 #include <linux/irq.h>
 #include <asm/trace.h>
 #include <asm/fixed_code.h>
+#include <asm/dma.h>
 
 #ifdef CONFIG_KGDB
 # include <linux/debugger.h>
@@ -171,7 +172,7 @@ asmlinkage void double_fault_c(struct pt_regs *fp)
 	oops_in_progress = 1;
 	printk(KERN_EMERG "\n" KERN_EMERG "Double Fault\n");
 	dump_bfin_process(fp);
-	dump_bfin_mem((void *)fp->retx);
+	dump_bfin_mem(fp);
 	show_regs(fp);
 	panic("Double Fault - unrecoverable event\n");
 
@@ -196,6 +197,10 @@ asmlinkage void trap_c(struct pt_regs *fp)
 	 * we will kernel panic, so the system reboots.
 	 * If KGDB is enabled, don't set this for kernel breakpoints
 	*/
+
+	/* TODO: check to see if we are in some sort of deferred HWERR
+	 * that we should be able to recover from, not kernel panic
+	 */
 	if ((bfin_read_IPEND() & 0xFFC0)
 #ifdef CONFIG_KGDB
 		&& trapnr != VEC_EXCPT02
@@ -478,11 +483,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
 	if (sig != SIGTRAP) {
 		unsigned long stack;
 		dump_bfin_process(fp);
-		/* Is it an interrupt, or an exception? */
-		if (trapnr == VEC_HWERR)
-			dump_bfin_mem((void *)fp->pc);
-		else
-			dump_bfin_mem((void *)fp->retx);
+		dump_bfin_mem(fp);
 		show_regs(fp);
 
 		/* Print out the trace buffer if it makes sense */
@@ -644,8 +645,10 @@ void dump_bfin_process(struct pt_regs *fp)
 	if (oops_in_progress)
 		printk(KERN_EMERG "Kernel OOPS in progress\n");
 
-	if (context & 0x0020)
-		printk(KERN_NOTICE "Deferred excecption or HW Error context\n");
+	if (context & 0x0020 && (fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR)
+		printk(KERN_NOTICE "HW Error context\n");
+	else if (context & 0x0020)
+		printk(KERN_NOTICE "Defered Exception context\n");
 	else if (context & 0x3FC0)
 		printk(KERN_NOTICE "Interrupt context\n");
 	else if (context & 0x4000)
@@ -673,49 +676,82 @@ void dump_bfin_process(struct pt_regs *fp)
 		     "No Valid process in current context\n");
 }
 
-void dump_bfin_mem(void *retaddr)
+void dump_bfin_mem(struct pt_regs *fp)
 {
+	unsigned short *addr, *erraddr, val = 0, err = 0;
+	char sti = 0, buf[6];
 
-	if (retaddr >= (void *)FIXED_CODE_START  && retaddr < (void *)physical_mem_end
-#if L1_CODE_LENGTH != 0
-	    /* FIXME: Copy the code out of L1 Instruction SRAM through dma
-	       memcpy.  */
-	    && !(retaddr >= (void *)L1_CODE_START
-	         && retaddr < (void *)(L1_CODE_START + L1_CODE_LENGTH))
-#endif
-	) {
-		int i = ((unsigned int)retaddr & 0xFFFFFFF0) - 32;
-		unsigned short x = 0;
-		printk(KERN_NOTICE "return address: [0x%p]; contents of:", retaddr);
-		for (; i < ((unsigned int)retaddr & 0xFFFFFFF0) + 32; i += 2) {
-			if (!(i & 0xF))
-				printk("\n" KERN_NOTICE "0x%08x: ", i);
-
-			if (get_user(x, (unsigned short *)i))
-				break;
+	if (unlikely((fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR))
+		erraddr = (void *)fp->pc;
+	else
+		erraddr = (void *)fp->retx;
+
+	printk(KERN_NOTICE "return address: [0x%p]; contents of:", erraddr);
+
+	for (addr = (unsigned short *)((unsigned long)erraddr & ~0xF) - 0x10;
+	     addr < (unsigned short *)((unsigned long)erraddr & ~0xF) + 0x10;
+	     addr++) {
+		if (!((unsigned long)addr & 0xF))
+			printk("\n" KERN_NOTICE "0x%p: ", addr);
+
+		if (get_user(val, addr)) {
+			if (addr >= (unsigned short *)L1_CODE_START &&
+			    addr < (unsigned short *)(L1_CODE_START + L1_CODE_LENGTH)) {
+				dma_memcpy(&val, addr, sizeof(val));
+				sprintf(buf, "%04x", val);
+			} else if (addr >= (unsigned short *)FIXED_CODE_START &&
+				addr <= (unsigned short *)memory_start) {
+				val = bfin_read16(addr);
+				sprintf(buf, "%04x", val);
+			} else {
+				val = 0;
+				sprintf(buf, "????");
+			}
+		} else
+			sprintf(buf, "%04x", val);
+
+		if (addr == erraddr) {
+			printk("[%s]", buf);
+			err = val;
+		} else
+			printk(" %s ", buf);
+
+		/* Do any previous instructions turn on interrupts? */
+		if (addr <= erraddr &&				/* in the past */
+		    ((val >= 0x0040 && val <= 0x0047) ||	/* STI instruction */
+		      val == 0x017b))				/* [SP++] = RETI */
+			sti = 1;
+	}
+
+	printk("\n");
+
+	/* Hardware error interrupts can be deferred */
+	if (unlikely(sti && (fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR &&
+	    oops_in_progress)){
+		printk(KERN_NOTICE "Looks like this was a deferred error - sorry\n");
 #ifndef CONFIG_DEBUG_HWERR
-			/* If one of the last few instructions was a STI
-			 * it is likely that the error occured awhile ago
-			 * and we just noticed. This only happens in kernel
-			 * context, which should mean an oops is happening
-			 */
-			if (oops_in_progress && x >= 0x0040 && x <= 0x0047 && i <= 0)
-				printk(KERN_EMERG "\n"
-					KERN_EMERG "WARNING : You should reconfigure"
-					" the kernel to turn on\n"
-					KERN_EMERG " 'Hardware error interrupt debugging'\n"
-					KERN_EMERG " The rest of this error is meanless\n");
-#endif
-			if (i == (unsigned int)retaddr)
-				printk("[%04x]", x);
-			else
-				printk(" %04x ", x);
+		printk(KERN_NOTICE "The remaining message may be meaningless\n"
+			KERN_NOTICE "You should enable CONFIG_DEBUG_HWERR to get a"
+			 " better idea where it came from\n");
+#else
+		/* If we are handling only one peripheral interrupt
+		 * and current mm and pid are valid, and the last error
+		 * was in that user space process's text area
+		 * print it out - because that is where the problem exists
+		 */
+		if ((!(((fp)->ipend & ~0x30) & (((fp)->ipend & ~0x30) - 1))) &&
+		     (current->pid && current->mm)) {
+			/* And the last RETI points to the current userspace context */
+			if ((fp + 1)->pc >= current->mm->start_code &&
+			    (fp + 1)->pc <= current->mm->end_code) {
+				printk(KERN_NOTICE "It might be better to look around here : \n");
+				printk(KERN_NOTICE "-------------------------------------------\n");
+				show_regs(fp + 1);
+				printk(KERN_NOTICE "-------------------------------------------\n");
+			}
 		}
-		printk("\n");
-	} else
-		printk("\n" KERN_NOTICE
-			"Cannot look at the [PC] <%p> for it is"
-			" in unreadable memory - sorry\n", retaddr);
+#endif
+	}
 }
 
 void show_regs(struct pt_regs *fp)
@@ -885,7 +921,7 @@ void panic_cplb_error(int cplb_panic, struct pt_regs *fp)
 	printk(KERN_EMERG "DCPLB_FAULT_ADDR=%p\n", (void *)bfin_read_DCPLB_FAULT_ADDR());
 	printk(KERN_EMERG "ICPLB_FAULT_ADDR=%p\n", (void *)bfin_read_ICPLB_FAULT_ADDR());
 	dump_bfin_process(fp);
-	dump_bfin_mem((void *)fp->retx);
+	dump_bfin_mem(fp);
 	show_regs(fp);
 	dump_stack();
 	panic("Unrecoverable event\n");
diff --git a/include/asm-blackfin/bfin-global.h b/include/asm-blackfin/bfin-global.h
index 39bdd86871cf..6ae0619d7696 100644
--- a/include/asm-blackfin/bfin-global.h
+++ b/include/asm-blackfin/bfin-global.h
@@ -51,7 +51,7 @@ extern unsigned long sclk_to_usecs(unsigned long sclk);
 extern unsigned long usecs_to_sclk(unsigned long usecs);
 
 extern void dump_bfin_process(struct pt_regs *regs);
-extern void dump_bfin_mem(void *retaddr);
+extern void dump_bfin_mem(struct pt_regs *regs);
 extern void dump_bfin_trace_buffer(void);
 
 extern int init_arch_irq(void);
-- 
cgit v1.2.3-59-g8ed1b


From 971d5bc4e5c75bfc4466deaff09839cd6f918eca Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Sun, 27 Jan 2008 16:32:31 +0800
Subject: [Blackfin] arch: Fix bug to Enable bf548 to Re-program Clocks while
 Kernel boots.

Reprogram DDR EBIU register properly for bf548.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/Kconfig                           | 19 +++++++-
 arch/blackfin/mach-bf548/head.S                 | 47 +++++++++++++++++++
 include/asm-blackfin/mach-bf548/defBF54x_base.h | 31 ++++++++++++-
 include/asm-blackfin/mach-bf548/mem_init.h      | 61 ++++++++++++++++++++++++-
 4 files changed, 153 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 5ebcfd226ed8..1364dcaccc18 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -317,7 +317,7 @@ config VCO_MULT
 	range 1 64
 	default "22" if BFIN533_EZKIT
 	default "45" if BFIN533_STAMP
-	default "20" if (BFIN537_STAMP || BFIN527_EZKIT)
+	default "20" if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT)
 	default "22" if BFIN533_BLUETECHNIX_CM
 	default "20" if BFIN537_BLUETECHNIX_CM
 	default "20" if BFIN561_BLUETECHNIX_CM
@@ -354,7 +354,7 @@ config SCLK_DIV
 	range 1 15
 	default 5 if BFIN533_EZKIT
 	default 5 if BFIN533_STAMP
-	default 4 if (BFIN537_STAMP || BFIN527_EZKIT)
+	default 4 if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT)
 	default 5 if BFIN533_BLUETECHNIX_CM
 	default 4 if BFIN537_BLUETECHNIX_CM
 	default 4 if BFIN561_BLUETECHNIX_CM
@@ -409,6 +409,7 @@ config MEM_SIZE
 	default  32 if BFIN533_EZKIT
 	default  64 if BFIN527_EZKIT
 	default  64 if BFIN537_STAMP
+	default  64 if BFIN548_EZKIT
 	default  64 if BFIN561_EZKIT
 	default 128 if BFIN533_STAMP
 	default  64 if PNAV10
@@ -416,6 +417,7 @@ config MEM_SIZE
 
 config MEM_ADD_WIDTH
 	int "SDRAM Memory Address Width"
+	depends on (!BF54x)
 	default  9 if BFIN533_EZKIT
 	default  9 if BFIN561_EZKIT
 	default  9 if H8606_HVSISTEMAS
@@ -424,6 +426,19 @@ config MEM_ADD_WIDTH
 	default 11 if BFIN533_STAMP
 	default 10 if PNAV10
 
+
+choice
+	prompt "DDR SDRAM Chip Type"
+	depends on BFIN548_EZKIT
+	default MEM_MT46V32M16_5B
+
+config MEM_MT46V32M16_6T
+        bool "MT46V32M16_6T"
+
+config MEM_MT46V32M16_5B
+        bool "MT46V32M16_5B"
+endchoice
+
 config ENET_FLASH_PIN
 	int "PF port/pin used for flash and ethernet sharing"
 	depends on (BFIN533_STAMP)
diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S
index 745662e88759..74fe258421a5 100644
--- a/arch/blackfin/mach-bf548/head.S
+++ b/arch/blackfin/mach-bf548/head.S
@@ -324,12 +324,25 @@ ENTRY(_start_dma_code)
 	w[p0] = r0.l;
 	ssync;
 
+#if defined(CONFIG_BF54x)
+	P2.H = hi(EBIU_RSTCTL);
+	P2.L = lo(EBIU_RSTCTL);
+	R0 = [P2];
+	BITSET (R0, 3);
+#else
 	P2.H = hi(EBIU_SDGCTL);
 	P2.L = lo(EBIU_SDGCTL);
 	R0 = [P2];
 	BITSET (R0, 24);
+#endif
 	[P2] = R0;
 	SSYNC;
+#if defined(CONFIG_BF54x)
+.LSRR_MODE:
+	R0 = [P2];
+	CC = BITTST(R0, 4);
+	if !CC JUMP .LSRR_MODE;
+#endif
 
 	r0 = CONFIG_VCO_MULT & 63;       /* Load the VCO multiplier         */
 	r0 = r0 << 9;                    /* Shift it over,                  */
@@ -361,6 +374,39 @@ ENTRY(_start_dma_code)
 	w[p0] = r0.l;
 	ssync;
 
+#if defined(CONFIG_BF54x)
+	P2.H = hi(EBIU_RSTCTL);
+	P2.L = lo(EBIU_RSTCTL);
+	R0 = [P2];
+	CC = BITTST(R0, 0);
+	if CC jump .Lskipddrrst;
+	BITSET (R0, 0);
+.Lskipddrrst:
+	BITCLR (R0, 3);
+	[P2] = R0;
+	SSYNC;
+
+	p0.l = lo(EBIU_DDRCTL0);
+	p0.h = hi(EBIU_DDRCTL0);
+	r0.l = lo(mem_DDRCTL0);
+	r0.h = hi(mem_DDRCTL0);
+	[p0] = r0;
+	ssync;
+
+	p0.l = lo(EBIU_DDRCTL1);
+	p0.h = hi(EBIU_DDRCTL1);
+	r0.l = lo(mem_DDRCTL1);
+	r0.h = hi(mem_DDRCTL1);
+	[p0] = r0;
+	ssync;
+
+	p0.l = lo(EBIU_DDRCTL2);
+	p0.h = hi(EBIU_DDRCTL2);
+	r0.l = lo(mem_DDRCTL2);
+	r0.h = hi(mem_DDRCTL2);
+	[p0] = r0;
+	ssync;
+#else
 	p0.l = lo(EBIU_SDRRC);
 	p0.h = hi(EBIU_SDRRC);
 	r0 = mem_SDRRC;
@@ -394,6 +440,7 @@ ENTRY(_start_dma_code)
 	R1 = R1 | R0;
 	[P2] = R1;
 	SSYNC;
+#endif
 
 	p0.h = hi(SIC_IWR0);
 	p0.l = lo(SIC_IWR0);
diff --git a/include/asm-blackfin/mach-bf548/defBF54x_base.h b/include/asm-blackfin/mach-bf548/defBF54x_base.h
index 319a48590c9c..08f90c21fe8a 100644
--- a/include/asm-blackfin/mach-bf548/defBF54x_base.h
+++ b/include/asm-blackfin/mach-bf548/defBF54x_base.h
@@ -1772,17 +1772,36 @@
 #define                       TRP  0x3c0000   /* Pre charge-to-active command period */
 #define                      TRAS  0x3c00000  /* Min Active-to-pre charge time */
 #define                       TRC  0x3c000000 /* Active-to-active time */
+#define DDR_TRAS(x)		((x<<22)&TRAS)	/* DDR tRAS = (1~15) cycles */
+#define DDR_TRP(x)		((x<<18)&TRP)	/* DDR tRP = (1~15) cycles */
+#define DDR_TRC(x)		((x<<26)&TRC)	/* DDR tRC = (1~15) cycles */
+#define DDR_TRFC(x)		((x<<14)&TRFC)	/* DDR tRFC = (1~15) cycles */
+#define DDR_TREFI(x)		(x&TREFI)	/* DDR tRFC = (1~15) cycles */
 
 /* Bit masks for EBIU_DDRCTL1 */
 
 #define                      TRCD  0xf        /* Active-to-Read/write delay */
-#define                       MRD  0xf0       /* Mode register set to active */
+#define                      TMRD  0xf0       /* Mode register set to active */
 #define                       TWR  0x300      /* Write Recovery time */
 #define               DDRDATWIDTH  0x3000     /* DDR data width */
 #define                  EXTBANKS  0xc000     /* External banks */
 #define               DDRDEVWIDTH  0x30000    /* DDR device width */
 #define                DDRDEVSIZE  0xc0000    /* DDR device size */
-#define                     TWWTR  0xf0000000 /* Write-to-read delay */
+#define                      TWTR  0xf0000000 /* Write-to-read delay */
+#define DDR_TWTR(x)		((x<<28)&TWTR)	/* DDR tWTR = (1~15) cycles */
+#define DDR_TMRD(x)		((x<<4)&TMRD)	/* DDR tMRD = (1~15) cycles */
+#define DDR_TWR(x)		((x<<8)&TWR)	/* DDR tWR = (1~15) cycles */
+#define DDR_TRCD(x)		(x&TRCD)	/* DDR tRCD = (1~15) cycles */
+#define DDR_DATWIDTH		0x2000		/* DDR data width */
+#define EXTBANK_1		0		/* 1 external bank */
+#define EXTBANK_2		0x4000		/* 2 external banks */
+#define DEVSZ_64		0x40000		/* DDR External Bank Size = 64MB */
+#define DEVSZ_128		0x80000		/* DDR External Bank Size = 128MB */
+#define DEVSZ_256		0xc0000		/* DDR External Bank Size = 256MB */
+#define DEVSZ_512		0		/* DDR External Bank Size = 512MB */
+#define DEVWD_4			0		/* DDR Device Width = 4 Bits    */
+#define DEVWD_8			0x10000		/* DDR Device Width = 8 Bits    */
+#define DEVWD_16		0x20000		/* DDR Device Width = 16 Bits    */
 
 /* Bit masks for EBIU_DDRCTL2 */
 
@@ -1790,6 +1809,10 @@
 #define                CASLATENCY  0x70       /* CAS latency */
 #define                  DLLRESET  0x100      /* DLL Reset */
 #define                      REGE  0x1000     /* Register mode enable */
+#define CL_1_5			0x50		/* DDR CAS Latency = 1.5 cycles */
+#define CL_2			0x20		/* DDR CAS Latency = 2 cycles */
+#define CL_2_5			0x60		/* DDR CAS Latency = 2.5 cycles */
+#define CL_3			0x30		/* DDR CAS Latency = 3 cycles */
 
 /* Bit masks for EBIU_DDRCTL3 */
 
@@ -2257,6 +2280,10 @@
 
 #define                      CSEL  0x30       /* Core Select */
 #define                      SSEL  0xf        /* System Select */
+#define			CSEL_DIV1	0x0000	/* CCLK = VCO / 1 */
+#define			CSEL_DIV2	0x0010	/* CCLK = VCO / 2 */
+#define			CSEL_DIV4	0x0020	/* CCLK = VCO / 4 */
+#define			CSEL_DIV8	0x0030	/* CCLK = VCO / 8 */
 
 /* Bit masks for PLL_CTL */
 
diff --git a/include/asm-blackfin/mach-bf548/mem_init.h b/include/asm-blackfin/mach-bf548/mem_init.h
index e792eb7ae6a0..befc2903d5a5 100644
--- a/include/asm-blackfin/mach-bf548/mem_init.h
+++ b/include/asm-blackfin/mach-bf548/mem_init.h
@@ -28,10 +28,69 @@
  * If not, write to the Free Software Foundation,
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
+#define MIN_DDR_SCLK(x)	(x*(CONFIG_SCLK_HZ/1000/1000)/1000 + 1)
 
-#if (CONFIG_MEM_MT46V32M16)
+#if (CONFIG_MEM_MT46V32M16_6T)
+#define DDR_SIZE	DEVSZ_512
+#define DDR_WIDTH	DEVWD_16
+
+#define DDR_tRC		DDR_TRC(MIN_DDR_SCLK(60))
+#define DDR_tRAS	DDR_TRAS(MIN_DDR_SCLK(42))
+#define DDR_tRP		DDR_TRP(MIN_DDR_SCLK(15))
+#define DDR_tRFC	DDR_TRFC(MIN_DDR_SCLK(72))
+#define DDR_tREFI	DDR_TREFI(MIN_DDR_SCLK(7800))
+
+#define DDR_tRCD	DDR_TRCD(MIN_DDR_SCLK(15))
+#define DDR_tWTR	DDR_TWTR(1)
+#define DDR_tMRD	DDR_TMRD(MIN_DDR_SCLK(12))
+#define DDR_tWR		DDR_TWR(MIN_DDR_SCLK(15))
+#endif
+
+#if (CONFIG_MEM_MT46V32M16_5B)
+#define DDR_SIZE	DEVSZ_512
+#define DDR_WIDTH	DEVWD_16
+
+#define DDR_tRC		DDR_TRC(MIN_DDR_SCLK(55))
+#define DDR_tRAS	DDR_TRAS(MIN_DDR_SCLK(40))
+#define DDR_tRP		DDR_TRP(MIN_DDR_SCLK(15))
+#define DDR_tRFC	DDR_TRFC(MIN_DDR_SCLK(70))
+#define DDR_tREFI	DDR_TREFI(MIN_DDR_SCLK(7800))
+
+#define DDR_tRCD	DDR_TRCD(MIN_DDR_SCLK(15))
+#define DDR_tWTR	DDR_TWTR(2)
+#define DDR_tMRD	DDR_TMRD(MIN_DDR_SCLK(10))
+#define DDR_tWR		DDR_TWR(MIN_DDR_SCLK(15))
+#endif
+
+#if (CONFIG_MEM_GENERIC_BOARD)
+#define DDR_SIZE	DEVSZ_512
+#define DDR_WIDTH	DEVWD_16
+
+#define DDR_tRCD	DDR_TRCD(3)
+#define DDR_tWTR	DDR_TWTR(2)
+#define DDR_tWR		DDR_TWR(2)
+#define DDR_tMRD	DDR_TMRD(2)
+#define DDR_tRP		DDR_TRP(3)
+#define DDR_tRAS	DDR_TRAS(7)
+#define DDR_tRC		DDR_TRC(10)
+#define DDR_tRFC	DDR_TRFC(12)
+#define DDR_tREFI	DDR_TREFI(1288)
 #endif
 
+#if (CONFIG_SCLK_HZ <= 133333333)
+#define	DDR_CL		CL_2
+#elif (CONFIG_SCLK_HZ <= 166666666)
+#define	DDR_CL		CL_2_5
+#else
+#define	DDR_CL		CL_3
+#endif
+
+#define mem_DDRCTL0	(DDR_tRP | DDR_tRAS | DDR_tRC | DDR_tRFC | DDR_tREFI)
+#define mem_DDRCTL1	(DDR_DATWIDTH | EXTBANK_1 | DDR_SIZE | DDR_WIDTH | DDR_tWTR \
+			| DDR_tMRD | DDR_tWR | DDR_tRCD)
+#define mem_DDRCTL2	DDR_CL
+
+
 #if defined CONFIG_CLKIN_HALF
 #define CLKIN_HALF       1
 #else
-- 
cgit v1.2.3-59-g8ed1b


From 1089e228737019b9711a6a394eebe25bf46b22d9 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Mon, 24 Dec 2007 11:49:29 +0800
Subject: [Blackfin] arch: Enable peripheral platform resources on the BF527
 EZkit

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf527/boards/ezkit.c | 98 +++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 003e2ac654d8..bc256811a5e3 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -41,6 +41,7 @@
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 #include <linux/usb/sl811.h>
+#include <linux/usb/musb.h>
 #include <asm/cplb.h>
 #include <asm/dma.h>
 #include <asm/bfin5xx_spi.h>
@@ -105,6 +106,69 @@ void __exit bfin_isp1761_exit(void)
 arch_initcall(bfin_isp1761_init);
 #endif
 
+#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+static struct resource musb_resources[] = {
+	[0] = {
+		.start	= 0xffc03800,
+		.end	= 0xffc03cff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {	/* general IRQ */
+		.start	= IRQ_USB_INT0,
+		.end	= IRQ_USB_INT0,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+	},
+	[2] = {	/* DMA IRQ */
+		.start	= IRQ_USB_DMA,
+		.end	= IRQ_USB_DMA,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+	},
+};
+
+static struct musb_hdrc_platform_data musb_plat = {
+#if defined(CONFIG_USB_MUSB_OTG)
+	.mode		= MUSB_OTG,
+#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
+	.mode		= MUSB_HOST,
+#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
+	.mode		= MUSB_PERIPHERAL,
+#endif
+	.multipoint	= 0,
+};
+
+static u64 musb_dmamask = ~(u32)0;
+
+static struct platform_device musb_device = {
+	.name		= "musb_hdrc",
+	.id		= 0,
+	.dev = {
+		.dma_mask		= &musb_dmamask,
+		.coherent_dma_mask	= 0xffffffff,
+		.platform_data		= &musb_plat,
+	},
+	.num_resources	= ARRAY_SIZE(musb_resources),
+	.resource	= musb_resources,
+};
+#endif
+
+#if defined(CONFIG_FB_BFIN_T350MCQB) || defined(CONFIG_FB_BFIN_T350MCQB_MODULE)
+
+static struct resource bf52x_t350mcqb_resources[] = {
+	{
+		.start = IRQ_PPI_ERROR,
+		.end = IRQ_PPI_ERROR,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bf52x_t350mcqb_device = {
+	.name		= "bfin-t350mcqb",
+	.id		= -1,
+	.num_resources 	= ARRAY_SIZE(bf52x_t350mcqb_resources),
+	.resource 	= bf52x_t350mcqb_resources,
+};
+#endif
+
 #if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
 static struct mtd_partition partition_info[] = {
 	{
@@ -718,6 +782,28 @@ static struct platform_device bfin_pata_device = {
 };
 #endif
 
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+
+static struct gpio_keys_button bfin_gpio_keys_table[] = {
+	{BTN_0, GPIO_PG0, 1, "gpio-keys: BTN0"},
+	{BTN_1, GPIO_PG13, 1, "gpio-keys: BTN1"},
+};
+
+static struct gpio_keys_platform_data bfin_gpio_keys_data = {
+	.buttons        = bfin_gpio_keys_table,
+	.nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
+};
+
+static struct platform_device bfin_device_gpiokeys = {
+	.name      = "gpio-keys",
+	.dev = {
+		.platform_data = &bfin_gpio_keys_data,
+	},
+};
+#endif
+
 static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
 	&bf5xx_nand_device,
@@ -739,6 +825,10 @@ static struct platform_device *stamp_devices[] __initdata = {
 	&isp1362_hcd_device,
 #endif
 
+#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+	&musb_device,
+#endif
+
 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 	&smc91x_device,
 #endif
@@ -763,6 +853,10 @@ static struct platform_device *stamp_devices[] __initdata = {
 	&bfin_fb_device,
 #endif
 
+#if defined(CONFIG_FB_BFIN_T350MCQB) || defined(CONFIG_FB_BFIN_T350MCQB_MODULE)
+	&bf52x_t350mcqb_device,
+#endif
+
 #if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
 	&bfin_fb_adv7393_device,
 #endif
@@ -783,6 +877,10 @@ static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
 	&bfin_pata_device,
 #endif
+
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+	&bfin_device_gpiokeys,
+#endif
 };
 
 static int __init stamp_init(void)
-- 
cgit v1.2.3-59-g8ed1b


From 50657afdd95a595a68d4ef420300638c0880db37 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Mon, 24 Dec 2007 00:16:01 +0800
Subject: [Blackfin] arch: Trash bf54x-hcd driver - we use the musb driver

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf548/boards/ezkit.c | 21 ---------------------
 1 file changed, 21 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index d37d6653c4bc..4d966eb2e998 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -206,23 +206,6 @@ static struct platform_device smsc911x_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_BF54x_HCD) || defined(CONFIG_USB_BF54x_HCD_MODULE)
-static struct resource bf54x_hcd_resources[] = {
-	{
-		.start = 0xFFC03C00,
-		.end = 0xFFC040FF,
-		.flags = IORESOURCE_MEM,
-	},
-};
-
-static struct platform_device bf54x_hcd = {
-	.name = "bf54x-hcd",
-	.id = 0,
-	.num_resources = ARRAY_SIZE(bf54x_hcd_resources),
-	.resource = bf54x_hcd_resources,
-};
-#endif
-
 #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
 static struct resource musb_resources[] = {
 	[0] = {
@@ -548,10 +531,6 @@ static struct platform_device *ezkit_devices[] __initdata = {
 	&smsc911x_device,
 #endif
 
-#if defined(CONFIG_USB_BF54x_HCD) || defined(CONFIG_USB_BF54x_HCD_MODULE)
-	&bf54x_hcd,
-#endif
-
 #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
 	&musb_device,
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From f31db2a8e824de67b3480c1502d70a9c902c7c1b Mon Sep 17 00:00:00 2001
From: Bryan Wu <bryan.wu@analog.com>
Date: Thu, 24 Jan 2008 16:14:35 +0800
Subject: [Blackfin] arch: update defconfig of boards

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/configs/BF527-EZKIT_defconfig | 17 +++---
 arch/blackfin/configs/BF533-EZKIT_defconfig | 17 +++---
 arch/blackfin/configs/BF533-STAMP_defconfig | 39 +++----------
 arch/blackfin/configs/BF537-STAMP_defconfig | 50 ++++++++++------
 arch/blackfin/configs/BF548-EZKIT_defconfig | 90 +++++++++++++++++++----------
 arch/blackfin/configs/BF561-EZKIT_defconfig | 32 +++++-----
 6 files changed, 134 insertions(+), 111 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/configs/BF527-EZKIT_defconfig b/arch/blackfin/configs/BF527-EZKIT_defconfig
index fa6eb4e00fae..d59ee1530bd4 100644
--- a/arch/blackfin/configs/BF527-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF527-EZKIT_defconfig
@@ -1,6 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22.12
+# Linux kernel version: 2.6.22.14
+# Thu Nov 29 17:32:47 2007
 #
 # CONFIG_MMU is not set
 # CONFIG_FPU is not set
@@ -153,8 +154,8 @@ CONFIG_BFIN527_EZKIT=y
 CONFIG_BF527_SPORT0_PORTG=y
 CONFIG_BF527_SPORT0_TSCLK_PG10=y
 # CONFIG_BF527_SPORT0_TSCLK_PG14 is not set
-# CONFIG_BF527_UART1_PORTF is not set
-CONFIG_BF527_UART1_PORTG=y
+CONFIG_BF527_UART1_PORTF=y
+# CONFIG_BF527_UART1_PORTG is not set
 # CONFIG_BF527_NAND_D_PORTF is not set
 CONFIG_BF527_NAND_D_PORTH=y
 
@@ -232,7 +233,7 @@ CONFIG_CLKIN_HZ=25000000
 # CONFIG_BFIN_KERNEL_CLOCK is not set
 CONFIG_MAX_VCO_HZ=600000000
 CONFIG_MIN_VCO_HZ=50000000
-CONFIG_MAX_SCLK_HZ=133000000
+CONFIG_MAX_SCLK_HZ=133333333
 CONFIG_MIN_SCLK_HZ=27000000
 
 #
@@ -626,8 +627,8 @@ CONFIG_BFIN_MAC_RMII=y
 # CONFIG_SMSC911X is not set
 # CONFIG_DM9000 is not set
 CONFIG_NETDEV_1000=y
-CONFIG_NETDEV_10000=y
 # CONFIG_AX88180 is not set
+CONFIG_NETDEV_10000=y
 
 #
 # Wireless LAN
@@ -1183,7 +1184,7 @@ CONFIG_NLS_DEFAULT="iso8859-1"
 #
 # CONFIG_PRINTK_TIME is not set
 CONFIG_ENABLE_MUST_CHECK=y
-CONFIG_MAGIC_SYSRQ=y
+# CONFIG_MAGIC_SYSRQ is not set
 # CONFIG_UNUSED_SYMBOLS is not set
 CONFIG_DEBUG_FS=y
 # CONFIG_HEADERS_CHECK is not set
@@ -1208,7 +1209,7 @@ CONFIG_ACCESS_CHECK=y
 # CONFIG_KEYS is not set
 CONFIG_SECURITY=y
 # CONFIG_SECURITY_NETWORK is not set
-CONFIG_SECURITY_CAPABILITIES=y
+CONFIG_SECURITY_CAPABILITIES=m
 
 #
 # Cryptographic options
@@ -1219,7 +1220,7 @@ CONFIG_SECURITY_CAPABILITIES=y
 # Library routines
 #
 CONFIG_BITREVERSE=y
-# CONFIG_CRC_CCITT is not set
+CONFIG_CRC_CCITT=m
 # CONFIG_CRC16 is not set
 # CONFIG_CRC_ITU_T is not set
 CONFIG_CRC32=y
diff --git a/arch/blackfin/configs/BF533-EZKIT_defconfig b/arch/blackfin/configs/BF533-EZKIT_defconfig
index 4fdb49362ba3..811711f59a25 100644
--- a/arch/blackfin/configs/BF533-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF533-EZKIT_defconfig
@@ -1,6 +1,6 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22.12
+# Linux kernel version: 2.6.22.16
 #
 # CONFIG_MMU is not set
 # CONFIG_FPU is not set
@@ -115,7 +115,10 @@ CONFIG_PREEMPT_VOLUNTARY=y
 # Processor and Board Settings
 #
 # CONFIG_BF522 is not set
+# CONFIG_BF523 is not set
+# CONFIG_BF524 is not set
 # CONFIG_BF525 is not set
+# CONFIG_BF526 is not set
 # CONFIG_BF527 is not set
 # CONFIG_BF531 is not set
 # CONFIG_BF532 is not set
@@ -194,7 +197,7 @@ CONFIG_CLKIN_HZ=27000000
 # CONFIG_BFIN_KERNEL_CLOCK is not set
 CONFIG_MAX_VCO_HZ=750000000
 CONFIG_MIN_VCO_HZ=50000000
-CONFIG_MAX_SCLK_HZ=133000000
+CONFIG_MAX_SCLK_HZ=133333333
 CONFIG_MIN_SCLK_HZ=27000000
 
 #
@@ -267,6 +270,7 @@ CONFIG_BFIN_DCACHE=y
 # CONFIG_BFIN_WB is not set
 CONFIG_BFIN_WT=y
 CONFIG_L1_MAX_PIECE=16
+# CONFIG_MPU is not set
 
 #
 # Asynchonous Memory Configuration
@@ -321,7 +325,7 @@ CONFIG_PM=y
 CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y
 # CONFIG_PM_WAKEUP_BY_GPIO is not set
 # CONFIG_PM_WAKEUP_GPIO_API is not set
-CONFIG_PM_WAKEUP_SIC_IWR=0x100000
+CONFIG_PM_WAKEUP_SIC_IWR=0x80
 
 #
 # CPU Frequency scaling
@@ -510,7 +514,6 @@ CONFIG_MTD_CFI_I2=y
 # CONFIG_MTD_CFI_INTELEXT is not set
 # CONFIG_MTD_CFI_AMDSTD is not set
 # CONFIG_MTD_CFI_STAA is not set
-CONFIG_MTD_MW320D=m
 CONFIG_MTD_RAM=y
 CONFIG_MTD_ROM=m
 # CONFIG_MTD_ABSENT is not set
@@ -520,9 +523,6 @@ CONFIG_MTD_ROM=m
 #
 CONFIG_MTD_COMPLEX_MAPPINGS=y
 # CONFIG_MTD_PHYSMAP is not set
-CONFIG_MTD_BF5xx=m
-CONFIG_BFIN_FLASH_SIZE=0x400000
-CONFIG_EBIU_FLASH_BASE=0x20000000
 # CONFIG_MTD_UCLINUX is not set
 # CONFIG_MTD_PLATRAM is not set
 
@@ -610,8 +610,8 @@ CONFIG_SMC91X=y
 # CONFIG_SMSC911X is not set
 # CONFIG_DM9000 is not set
 CONFIG_NETDEV_1000=y
-CONFIG_NETDEV_10000=y
 # CONFIG_AX88180 is not set
+CONFIG_NETDEV_10000=y
 
 #
 # Wireless LAN
@@ -680,7 +680,6 @@ CONFIG_INPUT_EVDEV=m
 CONFIG_BFIN_SPORT=y
 # CONFIG_BFIN_TIMER_LATENCY is not set
 # CONFIG_AD5304 is not set
-# CONFIG_BF5xx_FBDMA is not set
 # CONFIG_VT is not set
 # CONFIG_SERIAL_NONSTANDARD is not set
 
diff --git a/arch/blackfin/configs/BF533-STAMP_defconfig b/arch/blackfin/configs/BF533-STAMP_defconfig
index b04e8e533e9a..9b7123cf27a3 100644
--- a/arch/blackfin/configs/BF533-STAMP_defconfig
+++ b/arch/blackfin/configs/BF533-STAMP_defconfig
@@ -1,6 +1,6 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22.12
+# Linux kernel version: 2.6.22.16
 #
 # CONFIG_MMU is not set
 # CONFIG_FPU is not set
@@ -115,7 +115,10 @@ CONFIG_PREEMPT_VOLUNTARY=y
 # Processor and Board Settings
 #
 # CONFIG_BF522 is not set
+# CONFIG_BF523 is not set
+# CONFIG_BF524 is not set
 # CONFIG_BF525 is not set
+# CONFIG_BF526 is not set
 # CONFIG_BF527 is not set
 # CONFIG_BF531 is not set
 # CONFIG_BF532 is not set
@@ -140,7 +143,6 @@ CONFIG_BF_REV_0_3=y
 CONFIG_BF53x=y
 CONFIG_BFIN_SINGLE_CORE=y
 CONFIG_MEM_MT48LC64M4A2FB_7E=y
-CONFIG_BFIN_SHARED_FLASH_ENET=y
 # CONFIG_BFIN533_EZKIT is not set
 CONFIG_BFIN533_STAMP=y
 # CONFIG_BFIN533_BLUETECHNIX_CM is not set
@@ -195,7 +197,7 @@ CONFIG_CLKIN_HZ=11059200
 # CONFIG_BFIN_KERNEL_CLOCK is not set
 CONFIG_MAX_VCO_HZ=750000000
 CONFIG_MIN_VCO_HZ=50000000
-CONFIG_MAX_SCLK_HZ=133000000
+CONFIG_MAX_SCLK_HZ=133333333
 CONFIG_MIN_SCLK_HZ=27000000
 
 #
@@ -215,18 +217,10 @@ CONFIG_MEM_ADD_WIDTH=11
 CONFIG_ENET_FLASH_PIN=0
 CONFIG_BOOT_LOAD=0x1000
 
-#
-# LED Status Indicators
-#
-# CONFIG_BFIN_ALIVE_LED is not set
-# CONFIG_BFIN_IDLE_LED is not set
+
 CONFIG_BFIN_SCRATCH_REG_RETN=y
 # CONFIG_BFIN_SCRATCH_REG_RETE is not set
 # CONFIG_BFIN_SCRATCH_REG_CYCLES is not set
-CONFIG_BFIN_ALIVE_LED_PORT=0xFFC00700
-CONFIG_BFIN_ALIVE_LED_DPORT=0xFFC00730
-CONFIG_BFIN_IDLE_LED_PORT=0xFFC00700
-CONFIG_BFIN_IDLE_LED_DPORT=0xFFC00730
 
 #
 # Blackfin Kernel Optimizations
@@ -279,6 +273,7 @@ CONFIG_BFIN_DCACHE=y
 # CONFIG_BFIN_WB is not set
 CONFIG_BFIN_WT=y
 CONFIG_L1_MAX_PIECE=16
+# CONFIG_MPU is not set
 
 #
 # Asynchonous Memory Configuration
@@ -333,7 +328,7 @@ CONFIG_PM=y
 CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y
 # CONFIG_PM_WAKEUP_BY_GPIO is not set
 # CONFIG_PM_WAKEUP_GPIO_API is not set
-CONFIG_PM_WAKEUP_SIC_IWR=0x100000
+CONFIG_PM_WAKEUP_SIC_IWR=0x80
 
 #
 # CPU Frequency scaling
@@ -522,7 +517,6 @@ CONFIG_MTD_CFI_I2=y
 # CONFIG_MTD_CFI_INTELEXT is not set
 # CONFIG_MTD_CFI_AMDSTD is not set
 # CONFIG_MTD_CFI_STAA is not set
-CONFIG_MTD_MW320D=m
 CONFIG_MTD_RAM=y
 CONFIG_MTD_ROM=m
 # CONFIG_MTD_ABSENT is not set
@@ -532,17 +526,6 @@ CONFIG_MTD_ROM=m
 #
 CONFIG_MTD_COMPLEX_MAPPINGS=y
 # CONFIG_MTD_PHYSMAP is not set
-CONFIG_MTD_BF5xx=m
-CONFIG_BFIN_FLASH_SIZE=0x400000
-CONFIG_EBIU_FLASH_BASE=0x20000000
-
-#
-# FLASH_EBIU_AMBCTL Control
-#
-CONFIG_BFIN_FLASH_BANK_0=0x7BB0
-CONFIG_BFIN_FLASH_BANK_1=0x7BB0
-CONFIG_BFIN_FLASH_BANK_2=0x7BB0
-CONFIG_BFIN_FLASH_BANK_3=0x7BB0
 # CONFIG_MTD_UCLINUX is not set
 # CONFIG_MTD_PLATRAM is not set
 
@@ -630,8 +613,8 @@ CONFIG_SMC91X=y
 # CONFIG_SMSC911X is not set
 # CONFIG_DM9000 is not set
 CONFIG_NETDEV_1000=y
-CONFIG_NETDEV_10000=y
 # CONFIG_AX88180 is not set
+CONFIG_NETDEV_10000=y
 
 #
 # Wireless LAN
@@ -687,7 +670,6 @@ CONFIG_INPUT_MISC=y
 # CONFIG_INPUT_POWERMATE is not set
 # CONFIG_INPUT_YEALINK is not set
 # CONFIG_INPUT_UINPUT is not set
-# CONFIG_BF53X_PFBUTTONS is not set
 CONFIG_TWI_KEYPAD=m
 CONFIG_BFIN_TWIKEYPAD_IRQ_PFX=39
 
@@ -711,8 +693,6 @@ CONFIG_BFIN_SPORT=y
 CONFIG_TWI_LCD=m
 CONFIG_TWI_LCD_SLAVE_ADDR=34
 # CONFIG_AD5304 is not set
-# CONFIG_BF5xx_TEA5764 is not set
-# CONFIG_BF5xx_FBDMA is not set
 # CONFIG_VT is not set
 # CONFIG_SERIAL_NONSTANDARD is not set
 
@@ -778,7 +758,6 @@ CONFIG_I2C_ALGOBIT=m
 #
 # I2C Hardware Bus support
 #
-# CONFIG_I2C_BLACKFIN_GPIO is not set
 # CONFIG_I2C_GPIO is not set
 # CONFIG_I2C_OCORES is not set
 # CONFIG_I2C_PARPORT_LIGHT is not set
diff --git a/arch/blackfin/configs/BF537-STAMP_defconfig b/arch/blackfin/configs/BF537-STAMP_defconfig
index f812b66318b9..b37ccc681e7a 100644
--- a/arch/blackfin/configs/BF537-STAMP_defconfig
+++ b/arch/blackfin/configs/BF537-STAMP_defconfig
@@ -1,6 +1,6 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22.12
+# Linux kernel version: 2.6.22.16
 #
 # CONFIG_MMU is not set
 # CONFIG_FPU is not set
@@ -115,7 +115,10 @@ CONFIG_PREEMPT_VOLUNTARY=y
 # Processor and Board Settings
 #
 # CONFIG_BF522 is not set
+# CONFIG_BF523 is not set
+# CONFIG_BF524 is not set
 # CONFIG_BF525 is not set
+# CONFIG_BF526 is not set
 # CONFIG_BF527 is not set
 # CONFIG_BF531 is not set
 # CONFIG_BF532 is not set
@@ -170,6 +173,7 @@ CONFIG_IRQ_WATCH=13
 CONFIG_BFIN537_STAMP=y
 # CONFIG_BFIN537_BLUETECHNIX_CM is not set
 # CONFIG_PNAV10 is not set
+# CONFIG_CAMSIG_MINOTAUR is not set
 # CONFIG_GENERIC_BF537_BOARD is not set
 
 #
@@ -201,7 +205,7 @@ CONFIG_CLKIN_HZ=25000000
 # CONFIG_BFIN_KERNEL_CLOCK is not set
 CONFIG_MAX_VCO_HZ=600000000
 CONFIG_MIN_VCO_HZ=50000000
-CONFIG_MAX_SCLK_HZ=133000000
+CONFIG_MAX_SCLK_HZ=133333333
 CONFIG_MIN_SCLK_HZ=27000000
 
 #
@@ -274,6 +278,7 @@ CONFIG_BFIN_DCACHE=y
 # CONFIG_BFIN_WB is not set
 CONFIG_BFIN_WT=y
 CONFIG_L1_MAX_PIECE=16
+# CONFIG_MPU is not set
 
 #
 # Asynchonous Memory Configuration
@@ -328,7 +333,7 @@ CONFIG_PM=y
 CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y
 # CONFIG_PM_WAKEUP_BY_GPIO is not set
 # CONFIG_PM_WAKEUP_GPIO_API is not set
-CONFIG_PM_WAKEUP_SIC_IWR=0x80000000
+CONFIG_PM_WAKEUP_SIC_IWR=0x8
 
 #
 # CPU Frequency scaling
@@ -483,7 +488,7 @@ CONFIG_MTD=y
 # CONFIG_MTD_CONCAT is not set
 CONFIG_MTD_PARTITIONS=y
 # CONFIG_MTD_REDBOOT_PARTS is not set
-# CONFIG_MTD_CMDLINE_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
 
 #
 # User Modules And Translation Layers
@@ -500,8 +505,8 @@ CONFIG_MTD_BLOCK=y
 #
 # RAM/ROM/Flash chip drivers
 #
-# CONFIG_MTD_CFI is not set
-CONFIG_MTD_JEDECPROBE=m
+CONFIG_MTD_CFI=m
+# CONFIG_MTD_JEDECPROBE is not set
 CONFIG_MTD_GEN_PROBE=m
 # CONFIG_MTD_CFI_ADV_OPTIONS is not set
 CONFIG_MTD_MAP_BANK_WIDTH_1=y
@@ -515,9 +520,9 @@ CONFIG_MTD_CFI_I2=y
 # CONFIG_MTD_CFI_I4 is not set
 # CONFIG_MTD_CFI_I8 is not set
 # CONFIG_MTD_CFI_INTELEXT is not set
-# CONFIG_MTD_CFI_AMDSTD is not set
+CONFIG_MTD_CFI_AMDSTD=m
 # CONFIG_MTD_CFI_STAA is not set
-CONFIG_MTD_MW320D=m
+CONFIG_MTD_CFI_UTIL=m
 CONFIG_MTD_RAM=y
 CONFIG_MTD_ROM=m
 # CONFIG_MTD_ABSENT is not set
@@ -525,11 +530,11 @@ CONFIG_MTD_ROM=m
 #
 # Mapping drivers for chip access
 #
-CONFIG_MTD_COMPLEX_MAPPINGS=y
-# CONFIG_MTD_PHYSMAP is not set
-CONFIG_MTD_BF5xx=m
-CONFIG_BFIN_FLASH_SIZE=0x400000
-CONFIG_EBIU_FLASH_BASE=0x20000000
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_PHYSMAP=m
+CONFIG_MTD_PHYSMAP_START=0x20000000
+CONFIG_MTD_PHYSMAP_LEN=0x0
+CONFIG_MTD_PHYSMAP_BANKWIDTH=2
 # CONFIG_MTD_UCLINUX is not set
 # CONFIG_MTD_PLATRAM is not set
 
@@ -647,8 +652,8 @@ CONFIG_BFIN_RX_DESC_NUM=20
 # CONFIG_SMSC911X is not set
 # CONFIG_DM9000 is not set
 CONFIG_NETDEV_1000=y
-CONFIG_NETDEV_10000=y
 # CONFIG_AX88180 is not set
+CONFIG_NETDEV_10000=y
 
 #
 # Wireless LAN
@@ -704,7 +709,6 @@ CONFIG_INPUT_MISC=y
 # CONFIG_INPUT_POWERMATE is not set
 # CONFIG_INPUT_YEALINK is not set
 # CONFIG_INPUT_UINPUT is not set
-# CONFIG_BF53X_PFBUTTONS is not set
 CONFIG_TWI_KEYPAD=m
 CONFIG_BFIN_TWIKEYPAD_IRQ_PFX=72
 
@@ -728,8 +732,6 @@ CONFIG_BFIN_SPORT=y
 CONFIG_TWI_LCD=m
 CONFIG_TWI_LCD_SLAVE_ADDR=34
 # CONFIG_AD5304 is not set
-# CONFIG_BF5xx_TEA5764 is not set
-# CONFIG_BF5xx_FBDMA is not set
 # CONFIG_VT is not set
 # CONFIG_SERIAL_NONSTANDARD is not set
 
@@ -802,7 +804,6 @@ CONFIG_I2C_CHARDEV=m
 #
 # I2C Hardware Bus support
 #
-# CONFIG_I2C_BLACKFIN_GPIO is not set
 CONFIG_I2C_BLACKFIN_TWI=m
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=50
 # CONFIG_I2C_GPIO is not set
@@ -957,6 +958,7 @@ CONFIG_LQ035_SLAVE_ADDR=0x58
 # CONFIG_FB_BFIN_LANDSCAPE is not set
 # CONFIG_FB_BFIN_BGR is not set
 # CONFIG_FB_BFIN_T350MCQB is not set
+# CONFIG_FB_HITACHI_TX09 is not set
 # CONFIG_FB_S1D13XXX is not set
 # CONFIG_FB_VIRTUAL is not set
 # CONFIG_LOGO is not set
@@ -1008,12 +1010,22 @@ CONFIG_SND_BFIN_AD73311_SE=4
 #
 # System on Chip audio support
 #
-# CONFIG_SND_SOC is not set
+CONFIG_SND_SOC_AC97_BUS=y
+CONFIG_SND_SOC=m
+CONFIG_SND_BF5XX_SOC=m
+CONFIG_SND_BF5XX_SOC_AC97=m
+# CONFIG_SND_BF5XX_SOC_WM8750 is not set
+# CONFIG_SND_BF5XX_SOC_WM8731 is not set
+CONFIG_SND_BF5XX_SOC_BF5xx=m
+CONFIG_SND_BF5XX_SPORT_NUM=0
+# CONFIG_SND_BF5XX_HAVE_COLD_RESET is not set
+CONFIG_SND_SOC_AD1980=m
 
 #
 # Open Sound System
 #
 # CONFIG_SOUND_PRIME is not set
+CONFIG_AC97_BUS=m
 
 #
 # HID Devices
diff --git a/arch/blackfin/configs/BF548-EZKIT_defconfig b/arch/blackfin/configs/BF548-EZKIT_defconfig
index 48367cc9fe35..fd702161ef59 100644
--- a/arch/blackfin/configs/BF548-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF548-EZKIT_defconfig
@@ -1,6 +1,6 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22.12
+# Linux kernel version: 2.6.22.16
 #
 # CONFIG_MMU is not set
 # CONFIG_FPU is not set
@@ -115,7 +115,10 @@ CONFIG_PREEMPT_VOLUNTARY=y
 # Processor and Board Settings
 #
 # CONFIG_BF522 is not set
+# CONFIG_BF523 is not set
+# CONFIG_BF524 is not set
 # CONFIG_BF525 is not set
+# CONFIG_BF526 is not set
 # CONFIG_BF527 is not set
 # CONFIG_BF531 is not set
 # CONFIG_BF532 is not set
@@ -126,8 +129,8 @@ CONFIG_PREEMPT_VOLUNTARY=y
 # CONFIG_BF542 is not set
 # CONFIG_BF544 is not set
 # CONFIG_BF547 is not set
-# CONFIG_BF548 is not set
-CONFIG_BF549=y
+CONFIG_BF548=y
+# CONFIG_BF549 is not set
 # CONFIG_BF561 is not set
 CONFIG_BF_REV_0_0=y
 # CONFIG_BF_REV_0_1 is not set
@@ -265,9 +268,9 @@ CONFIG_PINT3_ASSIGN=0x02020303
 #
 CONFIG_CLKIN_HZ=25000000
 # CONFIG_BFIN_KERNEL_CLOCK is not set
-CONFIG_MAX_VCO_HZ=533000000
+CONFIG_MAX_VCO_HZ=600000000
 CONFIG_MIN_VCO_HZ=50000000
-CONFIG_MAX_SCLK_HZ=133000000
+CONFIG_MAX_SCLK_HZ=133333333
 CONFIG_MIN_SCLK_HZ=27000000
 
 #
@@ -283,7 +286,8 @@ CONFIG_HZ=250
 # Memory Setup
 #
 CONFIG_MEM_SIZE=64
-CONFIG_MEM_ADD_WIDTH=10
+# CONFIG_MEM_MT46V32M16_6T is not set
+CONFIG_MEM_MT46V32M16_5B=y
 CONFIG_BOOT_LOAD=0x1000
 CONFIG_BFIN_SCRATCH_REG_RETN=y
 # CONFIG_BFIN_SCRATCH_REG_RETE is not set
@@ -340,6 +344,7 @@ CONFIG_BFIN_DCACHE=y
 # CONFIG_BFIN_WB is not set
 CONFIG_BFIN_WT=y
 CONFIG_L1_MAX_PIECE=16
+# CONFIG_MPU is not set
 
 #
 # Asynchonous Memory Configuration
@@ -349,6 +354,7 @@ CONFIG_L1_MAX_PIECE=16
 # EBIU_AMGCTL Global Control
 #
 CONFIG_C_AMCKEN=y
+# CONFIG_C_CDPRIO is not set
 # CONFIG_C_AMBEN is not set
 # CONFIG_C_AMBEN_B0 is not set
 # CONFIG_C_AMBEN_B0_B1 is not set
@@ -362,9 +368,9 @@ CONFIG_BANK_0=0x7BB0
 CONFIG_BANK_1=0x5554
 CONFIG_BANK_2=0x7BB0
 CONFIG_BANK_3=0x99B3
-CONFIG_EBUI_MBSCTLVAL=0x0
-CONFIG_EBUI_MODEVAL=0x1
-CONFIG_EBUI_FCTLVAL=0x6
+CONFIG_EBIU_MBSCTLVAL=0x0
+CONFIG_EBIU_MODEVAL=0x1
+CONFIG_EBIU_FCTLVAL=0x6
 
 #
 # Bus options (PCI, PCMCIA, EISA, MCA, ISA)
@@ -537,7 +543,6 @@ CONFIG_MTD_CFI_I2=y
 CONFIG_MTD_CFI_INTELEXT=y
 # CONFIG_MTD_CFI_AMDSTD is not set
 # CONFIG_MTD_CFI_STAA is not set
-# CONFIG_MTD_MW320D is not set
 CONFIG_MTD_CFI_UTIL=y
 CONFIG_MTD_RAM=y
 # CONFIG_MTD_ROM is not set
@@ -549,9 +554,8 @@ CONFIG_MTD_RAM=y
 CONFIG_MTD_COMPLEX_MAPPINGS=y
 CONFIG_MTD_PHYSMAP=y
 CONFIG_MTD_PHYSMAP_START=0x20000000
-CONFIG_MTD_PHYSMAP_LEN=0x400000
+CONFIG_MTD_PHYSMAP_LEN=0
 CONFIG_MTD_PHYSMAP_BANKWIDTH=2
-# CONFIG_MTD_BF5xx is not set
 # CONFIG_MTD_UCLINUX is not set
 # CONFIG_MTD_PLATRAM is not set
 
@@ -690,8 +694,8 @@ CONFIG_MII=y
 CONFIG_SMSC911X=y
 # CONFIG_DM9000 is not set
 CONFIG_NETDEV_1000=y
-CONFIG_NETDEV_10000=y
 # CONFIG_AX88180 is not set
+CONFIG_NETDEV_10000=y
 
 #
 # Wireless LAN
@@ -719,7 +723,7 @@ CONFIG_NETDEV_10000=y
 #
 # Input device support
 #
-CONFIG_INPUT=m
+CONFIG_INPUT=y
 # CONFIG_INPUT_FF_MEMLESS is not set
 # CONFIG_INPUT_POLLDEV is not set
 
@@ -745,7 +749,8 @@ CONFIG_INPUT_KEYBOARD=y
 # CONFIG_KEYBOARD_NEWTON is not set
 # CONFIG_KEYBOARD_STOWAWAY is not set
 # CONFIG_KEYBOARD_GPIO is not set
-CONFIG_KEYBOARD_BFIN=m
+CONFIG_KEYBOARD_BFIN=y
+# CONFIG_KEYBOARD_OPENCORES is not set
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_INPUT_JOYSTICK is not set
 # CONFIG_INPUT_TABLET is not set
@@ -768,7 +773,6 @@ CONFIG_INPUT_MISC=y
 # CONFIG_INPUT_POWERMATE is not set
 # CONFIG_INPUT_YEALINK is not set
 # CONFIG_INPUT_UINPUT is not set
-# CONFIG_BF53X_PFBUTTONS is not set
 # CONFIG_TWI_KEYPAD is not set
 
 #
@@ -786,13 +790,16 @@ CONFIG_INPUT_MISC=y
 # CONFIG_BF5xx_PPIFCD is not set
 # CONFIG_BFIN_SIMPLE_TIMER is not set
 # CONFIG_BF5xx_PPI is not set
+CONFIG_BFIN_OTP=y
+# CONFIG_BFIN_OTP_WRITE_ENABLE is not set
 # CONFIG_BFIN_SPORT is not set
 # CONFIG_BFIN_TIMER_LATENCY is not set
 # CONFIG_TWI_LCD is not set
 # CONFIG_AD5304 is not set
-# CONFIG_BF5xx_TEA5764 is not set
-# CONFIG_BF5xx_FBDMA is not set
-# CONFIG_VT is not set
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
 # CONFIG_SERIAL_NONSTANDARD is not set
 
 #
@@ -858,7 +865,6 @@ CONFIG_I2C_CHARDEV=y
 #
 # I2C Hardware Bus support
 #
-# CONFIG_I2C_BLACKFIN_GPIO is not set
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=50
 # CONFIG_I2C_GPIO is not set
@@ -976,12 +982,12 @@ CONFIG_DAB=y
 #
 # CONFIG_DISPLAY_SUPPORT is not set
 # CONFIG_VGASTATE is not set
-CONFIG_FB=m
+CONFIG_FB=y
 CONFIG_FIRMWARE_EDID=y
 # CONFIG_FB_DDC is not set
-CONFIG_FB_CFB_FILLRECT=m
-CONFIG_FB_CFB_COPYAREA=m
-CONFIG_FB_CFB_IMAGEBLIT=m
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
 # CONFIG_FB_SYS_FILLRECT is not set
 # CONFIG_FB_SYS_COPYAREA is not set
 # CONFIG_FB_SYS_IMAGEBLIT is not set
@@ -998,11 +1004,34 @@ CONFIG_FB_DEFERRED_IO=y
 #
 # CONFIG_FB_BFIN_7171 is not set
 # CONFIG_FB_BFIN_7393 is not set
-CONFIG_FB_BF54X_LQ043=m
+CONFIG_FB_BF54X_LQ043=y
 # CONFIG_FB_BFIN_T350MCQB is not set
 # CONFIG_FB_S1D13XXX is not set
 # CONFIG_FB_VIRTUAL is not set
-# CONFIG_LOGO is not set
+
+#
+# Console display driver support
+#
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+CONFIG_FONTS=y
+# CONFIG_FONT_8x8 is not set
+# CONFIG_FONT_8x16 is not set
+CONFIG_FONT_6x11=y
+# CONFIG_FONT_7x14 is not set
+# CONFIG_FONT_PEARL_8x8 is not set
+# CONFIG_FONT_ACORN_8x8 is not set
+# CONFIG_FONT_MINI_4x6 is not set
+# CONFIG_FONT_SUN8x16 is not set
+# CONFIG_FONT_SUN12x22 is not set
+# CONFIG_FONT_10x18 is not set
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+# CONFIG_LOGO_LINUX_CLUT224 is not set
+# CONFIG_LOGO_BLACKFIN_VGA16 is not set
+CONFIG_LOGO_BLACKFIN_CLUT224=y
 
 #
 # Sound
@@ -1051,7 +1080,8 @@ CONFIG_SND_BF5XX_SOC_BF548_EZKIT=y
 # CONFIG_SND_BF5XX_SOC_WM8750 is not set
 # CONFIG_SND_BF5XX_SOC_WM8731 is not set
 CONFIG_SND_BF5XX_SPORT_NUM=0
-# CONFIG_SND_BF5XX_HAVE_COLD_RESET is not set
+CONFIG_SND_BF5XX_HAVE_COLD_RESET=y
+CONFIG_SND_BF5XX_RESET_GPIO_NUM=19
 CONFIG_SND_SOC_AD1980=y
 
 #
@@ -1403,7 +1433,7 @@ CONFIG_NLS_UTF8=m
 #
 # CONFIG_PRINTK_TIME is not set
 CONFIG_ENABLE_MUST_CHECK=y
-CONFIG_MAGIC_SYSRQ=y
+# CONFIG_MAGIC_SYSRQ is not set
 # CONFIG_UNUSED_SYMBOLS is not set
 CONFIG_DEBUG_FS=y
 # CONFIG_HEADERS_CHECK is not set
@@ -1428,7 +1458,7 @@ CONFIG_ACCESS_CHECK=y
 # CONFIG_KEYS is not set
 CONFIG_SECURITY=y
 # CONFIG_SECURITY_NETWORK is not set
-CONFIG_SECURITY_CAPABILITIES=y
+CONFIG_SECURITY_CAPABILITIES=m
 
 #
 # Cryptographic options
@@ -1439,7 +1469,7 @@ CONFIG_SECURITY_CAPABILITIES=y
 # Library routines
 #
 CONFIG_BITREVERSE=y
-# CONFIG_CRC_CCITT is not set
+CONFIG_CRC_CCITT=m
 # CONFIG_CRC16 is not set
 # CONFIG_CRC_ITU_T is not set
 CONFIG_CRC32=y
diff --git a/arch/blackfin/configs/BF561-EZKIT_defconfig b/arch/blackfin/configs/BF561-EZKIT_defconfig
index e9f100b45eb1..8546994939fb 100644
--- a/arch/blackfin/configs/BF561-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF561-EZKIT_defconfig
@@ -1,6 +1,6 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22.12
+# Linux kernel version: 2.6.22.16
 #
 # CONFIG_MMU is not set
 # CONFIG_FPU is not set
@@ -115,7 +115,10 @@ CONFIG_PREEMPT_VOLUNTARY=y
 # Processor and Board Settings
 #
 # CONFIG_BF522 is not set
+# CONFIG_BF523 is not set
+# CONFIG_BF524 is not set
 # CONFIG_BF525 is not set
+# CONFIG_BF526 is not set
 # CONFIG_BF527 is not set
 # CONFIG_BF531 is not set
 # CONFIG_BF532 is not set
@@ -238,7 +241,7 @@ CONFIG_CLKIN_HZ=30000000
 # CONFIG_BFIN_KERNEL_CLOCK is not set
 CONFIG_MAX_VCO_HZ=600000000
 CONFIG_MIN_VCO_HZ=50000000
-CONFIG_MAX_SCLK_HZ=133000000
+CONFIG_MAX_SCLK_HZ=133333333
 CONFIG_MIN_SCLK_HZ=27000000
 
 #
@@ -311,6 +314,7 @@ CONFIG_BFIN_DCACHE=y
 # CONFIG_BFIN_WB is not set
 CONFIG_BFIN_WT=y
 CONFIG_L1_MAX_PIECE=16
+# CONFIG_MPU is not set
 
 #
 # Asynchonous Memory Configuration
@@ -512,7 +516,7 @@ CONFIG_MTD=y
 # CONFIG_MTD_CONCAT is not set
 CONFIG_MTD_PARTITIONS=y
 # CONFIG_MTD_REDBOOT_PARTS is not set
-# CONFIG_MTD_CMDLINE_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
 
 #
 # User Modules And Translation Layers
@@ -529,8 +533,8 @@ CONFIG_MTD_BLOCK=y
 #
 # RAM/ROM/Flash chip drivers
 #
-# CONFIG_MTD_CFI is not set
-CONFIG_MTD_JEDECPROBE=m
+CONFIG_MTD_CFI=m
+# CONFIG_MTD_JEDECPROBE is not set
 CONFIG_MTD_GEN_PROBE=m
 # CONFIG_MTD_CFI_ADV_OPTIONS is not set
 CONFIG_MTD_MAP_BANK_WIDTH_1=y
@@ -544,9 +548,9 @@ CONFIG_MTD_CFI_I2=y
 # CONFIG_MTD_CFI_I4 is not set
 # CONFIG_MTD_CFI_I8 is not set
 # CONFIG_MTD_CFI_INTELEXT is not set
-# CONFIG_MTD_CFI_AMDSTD is not set
+CONFIG_MTD_CFI_AMDSTD=m
 # CONFIG_MTD_CFI_STAA is not set
-CONFIG_MTD_MW320D=m
+CONFIG_MTD_CFI_UTIL=m
 CONFIG_MTD_RAM=y
 CONFIG_MTD_ROM=m
 # CONFIG_MTD_ABSENT is not set
@@ -554,12 +558,11 @@ CONFIG_MTD_ROM=m
 #
 # Mapping drivers for chip access
 #
-CONFIG_MTD_COMPLEX_MAPPINGS=y
-# CONFIG_MTD_PHYSMAP is not set
-# CONFIG_MTD_EZKIT561 is not set
-CONFIG_MTD_BF5xx=m
-CONFIG_BFIN_FLASH_SIZE=0x0400000
-CONFIG_EBIU_FLASH_BASE=0x20000000
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_PHYSMAP=m
+CONFIG_MTD_PHYSMAP_START=0x20000000
+CONFIG_MTD_PHYSMAP_LEN=0x0
+CONFIG_MTD_PHYSMAP_BANKWIDTH=2
 # CONFIG_MTD_UCLINUX is not set
 # CONFIG_MTD_PLATRAM is not set
 
@@ -647,8 +650,8 @@ CONFIG_SMC91X=y
 # CONFIG_SMSC911X is not set
 # CONFIG_DM9000 is not set
 CONFIG_NETDEV_1000=y
-CONFIG_NETDEV_10000=y
 # CONFIG_AX88180 is not set
+CONFIG_NETDEV_10000=y
 
 #
 # Wireless LAN
@@ -717,7 +720,6 @@ CONFIG_INPUT_EVDEV=m
 # CONFIG_BFIN_SPORT is not set
 # CONFIG_BFIN_TIMER_LATENCY is not set
 # CONFIG_AD5304 is not set
-# CONFIG_BF5xx_FBDMA is not set
 # CONFIG_VT is not set
 # CONFIG_SERIAL_NONSTANDARD is not set
 
-- 
cgit v1.2.3-59-g8ed1b


From 0e85e3020ebb9a1afdeaa516fe8b8f16087adac1 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Mon, 24 Dec 2007 11:57:47 +0800
Subject: [Blackfin] arch: The BF527 EZkit connects UART1/PORTF

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf527/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf527/Kconfig b/arch/blackfin/mach-bf527/Kconfig
index 5c736837d4bf..3cde4beeb214 100644
--- a/arch/blackfin/mach-bf527/Kconfig
+++ b/arch/blackfin/mach-bf527/Kconfig
@@ -43,7 +43,7 @@ endchoice
 
 choice
 	prompt "UART1"
-	default BF527_UART1_PORTG
+	default BF527_UART1_PORTF
 	help
 	  Select PORT used for UART1. See Hardware Reference Manual
 
-- 
cgit v1.2.3-59-g8ed1b


From 2935077e06494638a78a02f7b4cf304e4e70eaca Mon Sep 17 00:00:00 2001
From: Bryan Wu <bryan.wu@analog.com>
Date: Mon, 24 Dec 2007 12:20:19 +0800
Subject: [Blackfin] arch: Fix if/def BUG - and define is multipoint NO

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf548/boards/ezkit.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index 4d966eb2e998..856b9db06663 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -226,14 +226,14 @@ static struct resource musb_resources[] = {
 };
 
 static struct musb_hdrc_platform_data musb_plat = {
-#ifdef CONFIG_USB_MUSB_OTG
+#if defined(CONFIG_USB_MUSB_OTG)
 	.mode		= MUSB_OTG,
-#elif CONFIG_USB_MUSB_HDRC_HCD
+#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
 	.mode		= MUSB_HOST,
-#elif CONFIG_USB_GADGET_MUSB_HDRC
+#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
 	.mode		= MUSB_PERIPHERAL,
 #endif
-	.multipoint	= 1,
+	.multipoint	= 0,
 };
 
 static u64 musb_dmamask = ~(u32)0;
-- 
cgit v1.2.3-59-g8ed1b


From 7a5f819187ff827c131721dbba11ad9596ae5e30 Mon Sep 17 00:00:00 2001
From: Javier Herrero <jherrero@hvsistemas.es>
Date: Sun, 27 Jan 2008 19:53:08 +0800
Subject: [Blackfin] arch: Added support for OpenCores Keyboard Controller to
 H8606 board

Signed-off-by: Javier Herrero <jherrero@hvsistemas.es>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf533/boards/H8606.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf533/boards/H8606.c b/arch/blackfin/mach-bf533/boards/H8606.c
index 675fd1c62805..a72c7a620fa1 100644
--- a/arch/blackfin/mach-bf533/boards/H8606.c
+++ b/arch/blackfin/mach-bf533/boards/H8606.c
@@ -346,6 +346,34 @@ static struct platform_device serial8250_device = {
 
 #endif
 
+#if defined(CONFIG_KEYBOARD_OPENCORES) || defined(CONFIG_KEYBOARD_OPENCORES_MODULE)
+
+/*
+ * Configuration for one OpenCores keyboard controller in FPGA at address 0x20200030,
+ * interrupt output wired to PF9. Change to suit different FPGA configuration
+ */
+
+static struct resource opencores_kbd_resources[] = {
+	[0] = {
+		.start	= 0x20200030,
+		.end	= 0x20300030 + 2,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_PF9,
+		.end	= IRQ_PF9,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+	},
+};
+
+static struct platform_device opencores_kbd_device = {
+	.id		= -1,
+	.name		= "opencores-kbd",
+	.resource	= opencores_kbd_resources,
+	.num_resources	= ARRAY_SIZE(opencores_kbd_resources),
+};
+#endif
+
 static struct platform_device *h8606_devices[] __initdata = {
 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 	&rtc_device,
@@ -374,6 +402,10 @@ static struct platform_device *h8606_devices[] __initdata = {
 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
 	&serial8250_device,
 #endif
+
+#if defined(CONFIG_KEYBOARD_OPENCORES) || defined(CONFIG_KEYBOARD_OPENCORES_MODULE)
+	&opencores_kbd_device,
+#endif
 };
 
 static int __init H8606_init(void)
-- 
cgit v1.2.3-59-g8ed1b


From b8aab6f6dc57ca79661d291af522d2e85156519f Mon Sep 17 00:00:00 2001
From: Cliff Cai <cliff.cai@analog.com>
Date: Mon, 24 Dec 2007 12:33:20 +0800
Subject: [Blackfin] arch: set default value of DEB_DMA_URGENT to YES to avoid
 DMA aborting caused by conflict between core and DMA

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf548/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf548/Kconfig b/arch/blackfin/mach-bf548/Kconfig
index d8bd3b49f150..1bfcd8f646ab 100644
--- a/arch/blackfin/mach-bf548/Kconfig
+++ b/arch/blackfin/mach-bf548/Kconfig
@@ -7,7 +7,7 @@ menu "BF548 Specific Configuration"
 config DEB_DMA_URGENT
 	bool "DMA has priority over core for ext. accesses"
 	depends on BF54x
-	default n
+	default y
 	help
 	  Treat any DEB1, DEB2 and DEB3 request as Urgent
 
-- 
cgit v1.2.3-59-g8ed1b


From 54a1668ce53fe701f1d36651b591ced388e97275 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <michael.frysinger@analog.com>
Date: Mon, 24 Dec 2007 14:59:03 +0800
Subject: [Blackfin] arch: scrub dead alive/idle LED code

if it does get re-added, it needs to be in the boards directory,
not common code ... or it needs a re-implementation

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/Kconfig          | 69 -----------------------------------------
 arch/blackfin/kernel/process.c | 31 -------------------
 arch/blackfin/kernel/setup.c   |  2 --
 arch/blackfin/kernel/time.c    | 70 ------------------------------------------
 4 files changed, 172 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 1364dcaccc18..e4ccdcdb4639 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -463,40 +463,6 @@ config BOOT_LOAD
 	  memory region is used to capture NULL pointer references as well
 	  as some core kernel functions.
 
-comment "LED Status Indicators"
-	depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)
-
-config BFIN_ALIVE_LED
-	bool "Enable Board Alive"
-	depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)
-	default n
-	help
-	  Blink the LEDs you select when the kernel is running.  Helps detect
-	  a hung kernel.
-
-config BFIN_ALIVE_LED_NUM
-	int "LED"
-	depends on BFIN_ALIVE_LED
-	range 1 3 if BFIN533_STAMP
-	default "3" if BFIN533_STAMP
-	help
-	  Select the LED (marked on the board) for you to blink.
-
-config BFIN_IDLE_LED
-	bool "Enable System Load/Idle LED"
-	depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)
-	default n
-	help
-	  Blinks the LED you select when to determine kernel load.
-
-config BFIN_IDLE_LED_NUM
-	int "LED"
-	depends on BFIN_IDLE_LED
-	range 1 3 if BFIN533_STAMP
-	default "2" if BFIN533_STAMP
-	help
-	  Select the LED (marked on the board) for you to blink.
-
 choice
 	prompt "Blackfin Exception Scratch Register"
 	default BFIN_SCRATCH_REG_RETN
@@ -543,41 +509,6 @@ config BFIN_SCRATCH_REG_CYCLES
 
 endchoice
 
-#
-# Sorry - but you need to put the hex address here -
-#
-
-# Flag Data register
-config BFIN_ALIVE_LED_PORT
-	hex
-	default 0xFFC00700 if (BFIN533_STAMP)
-
-# Peripheral Flag Direction Register
-config BFIN_ALIVE_LED_DPORT
-	hex
-	default 0xFFC00730 if (BFIN533_STAMP)
-
-config BFIN_ALIVE_LED_PIN
-	hex
-	default 0x04 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 1)
-	default 0x08 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 2)
-	default 0x10 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 3)
-
-config BFIN_IDLE_LED_PORT
-	hex
-	default 0xFFC00700 if (BFIN533_STAMP)
-
-# Peripheral Flag Direction Register
-config BFIN_IDLE_LED_DPORT
-	hex
-	default 0xFFC00730 if (BFIN533_STAMP)
-
-config BFIN_IDLE_LED_PIN
-	hex
-	default 0x04 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 1)
-	default 0x08 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 2)
-	default 0x10 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 3)
-
 endmenu
 
 
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index fff3dd9eadda..023dc80af187 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -39,9 +39,6 @@
 #include <asm/blackfin.h>
 #include <asm/fixed_code.h>
 
-#define	LED_ON	0
-#define	LED_OFF	1
-
 asmlinkage void ret_from_fork(void);
 
 /* Points to the SDRAM backup memory for the stack that is currently in
@@ -69,32 +66,6 @@ EXPORT_SYMBOL(pm_idle);
 void (*pm_power_off)(void) = NULL;
 EXPORT_SYMBOL(pm_power_off);
 
-/*
- * We are using a different LED from the one used to indicate timer interrupt.
- */
-#if defined(CONFIG_BFIN_IDLE_LED)
-static inline void leds_switch(int flag)
-{
-	unsigned short tmp = 0;
-
-	tmp = bfin_read_CONFIG_BFIN_IDLE_LED_PORT();
-	SSYNC();
-
-	if (flag == LED_ON)
-		tmp &= ~CONFIG_BFIN_IDLE_LED_PIN;	/* light on */
-	else
-		tmp |= CONFIG_BFIN_IDLE_LED_PIN;	/* light off */
-
-	bfin_write_CONFIG_BFIN_IDLE_LED_PORT(tmp);
-	SSYNC();
-
-}
-#else
-static inline void leds_switch(int flag)
-{
-}
-#endif
-
 /*
  * The idle loop on BFIN
  */
@@ -106,12 +77,10 @@ void cpu_idle(void)__attribute__((l1_text));
 void default_idle(void)
 {
 	while (!need_resched()) {
-		leds_switch(LED_OFF);
 		local_irq_disable();
 		if (likely(!need_resched()))
 			idle_with_irq_disabled();
 		local_irq_enable();
-		leds_switch(LED_ON);
 	}
 }
 
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index d2822010b7ce..a03c2dfff4a3 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -315,8 +315,6 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.end_data = (unsigned long)_edata;
 	init_mm.brk = (unsigned long)0;
 
-	init_leds();
-
 	_bfin_swrst = bfin_read_SWRST();
 
 	if (_bfin_swrst & RESET_DOUBLE)
diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c
index beef057bd1dc..5bd64e341df3 100644
--- a/arch/blackfin/kernel/time.c
+++ b/arch/blackfin/kernel/time.c
@@ -42,75 +42,6 @@
 static void time_sched_init(irqreturn_t(*timer_routine)
 			(int, void *));
 static unsigned long gettimeoffset(void);
-static inline void do_leds(void);
-
-#if (defined(CONFIG_BFIN_ALIVE_LED) || defined(CONFIG_BFIN_IDLE_LED))
-void __init init_leds(void)
-{
-	unsigned int tmp = 0;
-
-#if defined(CONFIG_BFIN_ALIVE_LED)
-	/* config pins as output. */
-	tmp = bfin_read_CONFIG_BFIN_ALIVE_LED_DPORT();
-	SSYNC();
-	bfin_write_CONFIG_BFIN_ALIVE_LED_DPORT(tmp | CONFIG_BFIN_ALIVE_LED_PIN);
-	SSYNC();
-
-	/*      First set led be off */
-	tmp = bfin_read_CONFIG_BFIN_ALIVE_LED_PORT();
-	SSYNC();
-	bfin_write_CONFIG_BFIN_ALIVE_LED_PORT(tmp | CONFIG_BFIN_ALIVE_LED_PIN);	/* light off */
-	SSYNC();
-#endif
-
-#if defined(CONFIG_BFIN_IDLE_LED)
-	/* config pins as output. */
-	tmp = bfin_read_CONFIG_BFIN_IDLE_LED_DPORT();
-	SSYNC();
-	bfin_write_CONFIG_BFIN_IDLE_LED_DPORT(tmp | CONFIG_BFIN_IDLE_LED_PIN);
-	SSYNC();
-
-	/*      First set led be off */
-	tmp = bfin_read_CONFIG_BFIN_IDLE_LED_PORT();
-	SSYNC();
-	bfin_write_CONFIG_BFIN_IDLE_LED_PORT(tmp | CONFIG_BFIN_IDLE_LED_PIN);	/* light off */
-	SSYNC();
-#endif
-}
-#else
-void __init init_leds(void)
-{
-}
-#endif
-
-#if defined(CONFIG_BFIN_ALIVE_LED)
-static inline void do_leds(void)
-{
-	static unsigned int count = 50;
-	static int flag;
-	unsigned short tmp = 0;
-
-	if (--count == 0) {
-		count = 50;
-		flag = ~flag;
-	}
-	tmp = bfin_read_CONFIG_BFIN_ALIVE_LED_PORT();
-	SSYNC();
-
-	if (flag)
-		tmp &= ~CONFIG_BFIN_ALIVE_LED_PIN;	/* light on */
-	else
-		tmp |= CONFIG_BFIN_ALIVE_LED_PIN;	/* light off */
-
-	bfin_write_CONFIG_BFIN_ALIVE_LED_PORT(tmp);
-	SSYNC();
-
-}
-#else
-static inline void do_leds(void)
-{
-}
-#endif
 
 static struct irqaction bfin_timer_irq = {
 	.name = "BFIN Timer Tick",
@@ -205,7 +136,6 @@ irqreturn_t timer_interrupt(int irq, void *dummy)
 	write_seqlock(&xtime_lock);
 
 	do_timer(1);
-	do_leds();
 
 #ifndef CONFIG_SMP
 	update_process_times(user_mode(get_irq_regs()));
-- 
cgit v1.2.3-59-g8ed1b


From 1545a1111a02b5aafe6f141e133a6269c5741285 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <michael.frysinger@analog.com>
Date: Mon, 24 Dec 2007 16:54:48 +0800
Subject: [Blackfin] arch: add support for BF523/BF524/BF526

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/Kconfig            | 26 +++++++++++++++++++++++---
 arch/blackfin/Makefile           |  6 ++++++
 arch/blackfin/kernel/bfin_gpio.c | 34 ++++++++++++++++++++++++++++++++++
 3 files changed, 63 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index e4ccdcdb4639..a241a0a27de2 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -85,11 +85,26 @@ config BF522
 	help
 	  BF522 Processor Support.
 
+config BF523
+	bool "BF523"
+	help
+	  BF523 Processor Support.
+
+config BF524
+	bool "BF524"
+	help
+	  BF524 Processor Support.
+
 config BF525
 	bool "BF525"
 	help
 	  BF525 Processor Support.
 
+config BF526
+	bool "BF526"
+	help
+	  BF526 Processor Support.
+
 config BF527
 	bool "BF527"
 	help
@@ -198,7 +213,7 @@ endchoice
 
 config BF52x
 	bool
-	depends on (BF522 || BF525 || BF527)
+	depends on (BF522 || BF523 || BF524 || BF525 || BF526 || BF527)
 	default y
 
 config BF53x
@@ -371,7 +386,10 @@ config SCLK_DIV
 config MAX_VCO_HZ
 	int
 	default 600000000 if BF522
+	default 400000000 if BF523
+	default 400000000 if BF524
 	default 600000000 if BF525
+	default 400000000 if BF526
 	default 600000000 if BF527
 	default 400000000 if BF531
 	default 400000000 if BF532
@@ -383,6 +401,8 @@ config MAX_VCO_HZ
 	default 533333333 if BF539
 	default 600000000 if BF542
 	default 533333333 if BF544
+	default 600000000 if BF547
+	default 600000000 if BF548
 	default 533333333 if BF549
 	default 600000000 if BF561
 
@@ -897,8 +917,8 @@ config PM_WAKEUP_SIC_IWR
 	depends on PM_WAKEUP_GPIO_BY_SIC_IWR
 	default 0x80000000 if (BF537 || BF536 || BF534)
 	default 0x100000 if (BF533 || BF532 || BF531)
-	default 0x800000 if (BF549 || BF548 || BF547 || BF542)
-	default 0x800000 if (BF527 || BF524 || BF522)
+	default 0x800000 if (BF54x)
+	default 0x800000 if (BF52x)
 
 config PM_WAKEUP_GPIO_NUMBER
 	int "Wakeup GPIO number"
diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile
index c47e000f8324..0c9680eac8ef 100644
--- a/arch/blackfin/Makefile
+++ b/arch/blackfin/Makefile
@@ -21,7 +21,10 @@ KBUILD_DEFCONFIG := BF537-STAMP_defconfig
 
 # setup the machine name and the machine dependent settings
 machine-$(CONFIG_BF522) := bf527
+machine-$(CONFIG_BF523) := bf527
+machine-$(CONFIG_BF524) := bf527
 machine-$(CONFIG_BF525) := bf527
+machine-$(CONFIG_BF526) := bf527
 machine-$(CONFIG_BF527) := bf527
 machine-$(CONFIG_BF531) := bf533
 machine-$(CONFIG_BF532) := bf533
@@ -39,7 +42,10 @@ MACHINE := $(machine-y)
 export MACHINE
 
 cpu-$(CONFIG_BF522) := bf522
+cpu-$(CONFIG_BF523) := bf523
+cpu-$(CONFIG_BF524) := bf524
 cpu-$(CONFIG_BF525) := bf525
+cpu-$(CONFIG_BF526) := bf526
 cpu-$(CONFIG_BF527) := bf527
 cpu-$(CONFIG_BF531) := bf531
 cpu-$(CONFIG_BF532) := bf532
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index ce85d4bf34ca..ea13d2a22d69 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -83,6 +83,7 @@
 #include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/err.h>
+#include <linux/proc_fs.h>
 #include <asm/blackfin.h>
 #include <asm/gpio.h>
 #include <asm/portmux.h>
@@ -1194,3 +1195,36 @@ void bfin_gpio_reset_spi0_ssel1(void)
 }
 
 #endif /*BF548_FAMILY */
+
+#if defined(CONFIG_PROC_FS)
+static int gpio_proc_read(char *buf, char **start, off_t offset,
+			  int len, int *unused_i, void *unused_v)
+{
+	int c, outlen = 0;
+
+	for (c = 0; c < MAX_RESOURCES; c++) {
+		if (!check_gpio(c) && (reserved_gpio_map[gpio_bank(c)] & gpio_bit(c)))
+			len = sprintf(buf, "GPIO_%d: %s \tGPIO %s\n", c,
+				 get_label(c), get_gpio_dir(c) ? "OUTPUT" : "INPUT");
+		else if (reserved_peri_map[gpio_bank(c)] & gpio_bit(c))
+			len = sprintf(buf, "GPIO_%d: %s \tPeripheral\n", c, get_label(c));
+		else
+			continue;
+		buf += len;
+		outlen += len;
+	}
+	return outlen;
+}
+
+static __init int gpio_register_proc(void)
+{
+	struct proc_dir_entry *proc_gpio;
+
+	proc_gpio = create_proc_entry("gpio", S_IRUGO, NULL);
+	if (proc_gpio)
+		proc_gpio->read_proc = gpio_proc_read;
+	return proc_gpio != NULL;
+}
+
+__initcall(gpio_register_proc);
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From fac3cf432ef9b6bfd64b35b95afe0b7e0079da74 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Mon, 24 Dec 2007 20:07:03 +0800
Subject: [Blackfin] arch: Fix gpio label handling

early serial init also utilizes the peripheral request api - however
at this point bfin_gpio_init didn't allocate memory for the labels.
So we always have two zombies (allocated pin functions without labels)

This happens before the initcalls - We now allocate memory statically.
Define MAX_RESOURCES individually for each cpu.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/bfin_gpio.c          | 31 ++++++++++++++++++-------------
 include/asm-blackfin/mach-bf527/portmux.h |  2 ++
 include/asm-blackfin/mach-bf533/portmux.h |  2 ++
 include/asm-blackfin/mach-bf537/portmux.h |  2 ++
 include/asm-blackfin/mach-bf548/portmux.h |  2 ++
 include/asm-blackfin/mach-bf561/portmux.h |  2 ++
 6 files changed, 28 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index ea13d2a22d69..ffee36910288 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -179,15 +179,13 @@ static struct gpio_port_t *gpio_array[gpio_bank(MAX_BLACKFIN_GPIOS)] = {
 #endif
 
 static unsigned short reserved_gpio_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
-static unsigned short reserved_peri_map[gpio_bank(MAX_BLACKFIN_GPIOS + 16)];
+static unsigned short reserved_peri_map[gpio_bank(MAX_RESOURCES)];
 
-#define MAX_RESOURCES 		256
 #define RESOURCE_LABEL_SIZE 	16
 
-struct str_ident {
+static struct str_ident {
 	char name[RESOURCE_LABEL_SIZE];
-} *str_ident;
-
+} str_ident[MAX_RESOURCES];
 
 #ifdef CONFIG_PM
 static unsigned short wakeup_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
@@ -251,6 +249,11 @@ static char *get_label(unsigned short ident)
 
 static int cmp_label(unsigned short ident, const char *label)
 {
+	if (label == NULL) {
+		dump_stack();
+		printk(KERN_ERR "Please provide none-null label\n");
+	}
+
 	if (label && str_ident)
 		return strncmp(str_ident[ident].name,
 				 label, strlen(label));
@@ -419,12 +422,6 @@ static void default_gpio(unsigned short gpio)
 
 static int __init bfin_gpio_init(void)
 {
-	str_ident = kcalloc(MAX_RESOURCES,
-				 sizeof(struct str_ident), GFP_KERNEL);
-	if (str_ident == NULL)
-		return -ENOMEM;
-
-	memset(str_ident, 0, MAX_RESOURCES * sizeof(struct str_ident));
 
 	printk(KERN_INFO "Blackfin GPIO Controller\n");
 
@@ -785,6 +782,14 @@ void gpio_pm_restore(void)
 }
 
 #endif
+#else /* BF548_FAMILY */
+
+unsigned short get_gpio_dir(unsigned short gpio)
+{
+	return (0x01 & (gpio_array[gpio_bank(gpio)]->port_dir_clear >> gpio_sub_n(gpio)));
+}
+EXPORT_SYMBOL(get_gpio_dir);
+
 #endif /* BF548_FAMILY */
 
 /***********************************************************
@@ -1204,10 +1209,10 @@ static int gpio_proc_read(char *buf, char **start, off_t offset,
 
 	for (c = 0; c < MAX_RESOURCES; c++) {
 		if (!check_gpio(c) && (reserved_gpio_map[gpio_bank(c)] & gpio_bit(c)))
-			len = sprintf(buf, "GPIO_%d: %s \tGPIO %s\n", c,
+			len = sprintf(buf, "GPIO_%d: %s \t\tGPIO %s\n", c,
 				 get_label(c), get_gpio_dir(c) ? "OUTPUT" : "INPUT");
 		else if (reserved_peri_map[gpio_bank(c)] & gpio_bit(c))
-			len = sprintf(buf, "GPIO_%d: %s \tPeripheral\n", c, get_label(c));
+			len = sprintf(buf, "GPIO_%d: %s \t\tPeripheral\n", c, get_label(c));
 		else
 			continue;
 		buf += len;
diff --git a/include/asm-blackfin/mach-bf527/portmux.h b/include/asm-blackfin/mach-bf527/portmux.h
index dcf001adc63c..ae4d205bfcf5 100644
--- a/include/asm-blackfin/mach-bf527/portmux.h
+++ b/include/asm-blackfin/mach-bf527/portmux.h
@@ -1,6 +1,8 @@
 #ifndef _MACH_PORTMUX_H_
 #define _MACH_PORTMUX_H_
 
+#define MAX_RESOURCES 	MAX_BLACKFIN_GPIOS
+
 #define P_PPI0_D0	(P_DEFINED | P_IDENT(GPIO_PF0) | P_FUNCT(0))
 #define P_PPI0_D1	(P_DEFINED | P_IDENT(GPIO_PF1) | P_FUNCT(0))
 #define P_PPI0_D2	(P_DEFINED | P_IDENT(GPIO_PF2) | P_FUNCT(0))
diff --git a/include/asm-blackfin/mach-bf533/portmux.h b/include/asm-blackfin/mach-bf533/portmux.h
index 137f4884acfe..685a2651dcda 100644
--- a/include/asm-blackfin/mach-bf533/portmux.h
+++ b/include/asm-blackfin/mach-bf533/portmux.h
@@ -1,6 +1,8 @@
 #ifndef _MACH_PORTMUX_H_
 #define _MACH_PORTMUX_H_
 
+#define MAX_RESOURCES 	MAX_BLACKFIN_GPIOS
+
 #define P_PPI0_CLK	(P_DONTCARE)
 #define P_PPI0_FS1	(P_DONTCARE)
 #define P_PPI0_FS2	(P_DONTCARE)
diff --git a/include/asm-blackfin/mach-bf537/portmux.h b/include/asm-blackfin/mach-bf537/portmux.h
index 5a3f7d3bf73d..78fee6e0f237 100644
--- a/include/asm-blackfin/mach-bf537/portmux.h
+++ b/include/asm-blackfin/mach-bf537/portmux.h
@@ -1,6 +1,8 @@
 #ifndef _MACH_PORTMUX_H_
 #define _MACH_PORTMUX_H_
 
+#define MAX_RESOURCES 	(MAX_BLACKFIN_GPIOS + GPIO_BANKSIZE)	/* We additionally handle PORTJ */
+
 #define P_UART0_TX	(P_DEFINED | P_IDENT(GPIO_PF0) | P_FUNCT(0))
 #define P_UART0_RX	(P_DEFINED | P_IDENT(GPIO_PF1) | P_FUNCT(0))
 #define P_UART1_TX	(P_DEFINED | P_IDENT(GPIO_PF2) | P_FUNCT(0))
diff --git a/include/asm-blackfin/mach-bf548/portmux.h b/include/asm-blackfin/mach-bf548/portmux.h
index 6b485120015f..8177a567dcdb 100644
--- a/include/asm-blackfin/mach-bf548/portmux.h
+++ b/include/asm-blackfin/mach-bf548/portmux.h
@@ -1,6 +1,8 @@
 #ifndef _MACH_PORTMUX_H_
 #define _MACH_PORTMUX_H_
 
+#define MAX_RESOURCES 	MAX_BLACKFIN_GPIOS
+
 #define P_SPORT2_TFS	(P_DEFINED | P_IDENT(GPIO_PA0) | P_FUNCT(0))
 #define P_SPORT2_DTSEC	(P_DEFINED | P_IDENT(GPIO_PA1) | P_FUNCT(0))
 #define P_SPORT2_DTPRI	(P_DEFINED | P_IDENT(GPIO_PA2) | P_FUNCT(0))
diff --git a/include/asm-blackfin/mach-bf561/portmux.h b/include/asm-blackfin/mach-bf561/portmux.h
index 132ad31665e3..a6ee8206efb6 100644
--- a/include/asm-blackfin/mach-bf561/portmux.h
+++ b/include/asm-blackfin/mach-bf561/portmux.h
@@ -1,6 +1,8 @@
 #ifndef _MACH_PORTMUX_H_
 #define _MACH_PORTMUX_H_
 
+#define MAX_RESOURCES 	MAX_BLACKFIN_GPIOS
+
 #define P_PPI0_CLK	(P_DONTCARE)
 #define P_PPI0_FS1	(P_DONTCARE)
 #define P_PPI0_FS2	(P_DONTCARE)
-- 
cgit v1.2.3-59-g8ed1b


From 6fce6a8d6940654b48d3d540627c7ee790a03b80 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Mon, 24 Dec 2007 16:56:12 +0800
Subject: [Blackfin] arch: append IRQ Number to label string

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-common/ints-priority-dc.c | 10 ++++++----
 arch/blackfin/mach-common/ints-priority-sc.c | 17 +++++++++++++----
 2 files changed, 19 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-common/ints-priority-dc.c b/arch/blackfin/mach-common/ints-priority-dc.c
index 4882f0e801a9..8d18d6b163bb 100644
--- a/arch/blackfin/mach-common/ints-priority-dc.c
+++ b/arch/blackfin/mach-common/ints-priority-dc.c
@@ -222,11 +222,12 @@ static void bf561_gpio_unmask_irq(unsigned int irq)
 static unsigned int bf561_gpio_irq_startup(unsigned int irq)
 {
 	unsigned int ret;
+	char buf[8];
 	u16 gpionr = irq - IRQ_PF0;
 
 	if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-
-		ret = gpio_request(gpionr, "IRQ");
+		snprintf(buf, sizeof buf, "IRQ %d", irq);
+		ret = gpio_request(gpionr, buf);
 		if (ret)
 			return ret;
 
@@ -250,6 +251,7 @@ static int bf561_gpio_irq_type(unsigned int irq, unsigned int type)
 {
 
 	unsigned int ret;
+	char buf[8];
 	u16 gpionr = irq - IRQ_PF0;
 
 
@@ -265,8 +267,8 @@ static int bf561_gpio_irq_type(unsigned int irq, unsigned int type)
 			    IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) {
 
 		if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-
-			ret = gpio_request(gpionr, "IRQ");
+			snprintf(buf, sizeof buf, "IRQ %d", irq);
+			ret = gpio_request(gpionr, buf);
 			if (ret)
 				return ret;
 
diff --git a/arch/blackfin/mach-common/ints-priority-sc.c b/arch/blackfin/mach-common/ints-priority-sc.c
index 147f0731087a..36ef4d17dd35 100644
--- a/arch/blackfin/mach-common/ints-priority-sc.c
+++ b/arch/blackfin/mach-common/ints-priority-sc.c
@@ -313,6 +313,7 @@ static void bfin_demux_error_irq(unsigned int int_err_irq,
 static unsigned short gpio_enabled[gpio_bank(MAX_BLACKFIN_GPIOS)];
 static unsigned short gpio_edge_triggered[gpio_bank(MAX_BLACKFIN_GPIOS)];
 
+
 static void bfin_gpio_ack_irq(unsigned int irq)
 {
 	u16 gpionr = irq - IRQ_PF0;
@@ -352,9 +353,11 @@ static unsigned int bfin_gpio_irq_startup(unsigned int irq)
 {
 	unsigned int ret;
 	u16 gpionr = irq - IRQ_PF0;
+	char buf[8];
 
 	if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-		ret = gpio_request(gpionr, "IRQ");
+		snprintf(buf, sizeof buf, "IRQ %d", irq);
+		ret = gpio_request(gpionr, buf);
 		if (ret)
 			return ret;
 	}
@@ -376,6 +379,7 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
 {
 
 	unsigned int ret;
+	char buf[8];
 	u16 gpionr = irq - IRQ_PF0;
 
 	if (type == IRQ_TYPE_PROBE) {
@@ -388,7 +392,8 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
 	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING |
 		    IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) {
 		if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-			ret = gpio_request(gpionr, "IRQ");
+			snprintf(buf, sizeof buf, "IRQ %d", irq);
+			ret = gpio_request(gpionr, buf);
 			if (ret)
 				return ret;
 		}
@@ -587,6 +592,7 @@ static void bfin_gpio_unmask_irq(unsigned int irq)
 static unsigned int bfin_gpio_irq_startup(unsigned int irq)
 {
 	unsigned int ret;
+	char buf[8];
 	u16 gpionr = irq - IRQ_PA0;
 	u8 pint_val = irq2pint_lut[irq - SYS_IRQS];
 
@@ -598,7 +604,8 @@ static unsigned int bfin_gpio_irq_startup(unsigned int irq)
 	}
 
 	if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-		ret = gpio_request(gpionr, "IRQ");
+		snprintf(buf, sizeof buf, "IRQ %d", irq);
+		ret = gpio_request(gpionr, buf);
 		if (ret)
 			return ret;
 	}
@@ -620,6 +627,7 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
 {
 
 	unsigned int ret;
+	char buf[8];
 	u16 gpionr = irq - IRQ_PA0;
 	u8 pint_val = irq2pint_lut[irq - SYS_IRQS];
 	u32 pintbit = PINT_BIT(pint_val);
@@ -638,7 +646,8 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
 	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING |
 		    IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) {
 		if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-			ret = gpio_request(gpionr, "IRQ");
+			snprintf(buf, sizeof buf, "IRQ %d", irq);
+			ret = gpio_request(gpionr, buf);
 			if (ret)
 				return ret;
 		}
-- 
cgit v1.2.3-59-g8ed1b


From 2463ef22bf8b6e22048bd26f940c014f7e1f0998 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Sun, 27 Jan 2008 16:49:48 +0800
Subject: [Blackfin] arch: replace current blackfin specific pfbutton driver
 with kernel generic gpio key driver

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf533/boards/ezkit.c | 28 ++++++++++++++++++++++++++++
 arch/blackfin/mach-bf533/boards/stamp.c | 27 +++++++++++++++++++++++++++
 arch/blackfin/mach-bf537/boards/stamp.c | 28 ++++++++++++++++++++++++++++
 arch/blackfin/mach-bf548/boards/ezkit.c | 27 +++++++++++++++++++++++++++
 arch/blackfin/mach-bf561/boards/ezkit.c | 30 ++++++++++++++++++++++++++++++
 5 files changed, 140 insertions(+)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c
index be852034a68b..ead5c12cbe90 100644
--- a/arch/blackfin/mach-bf533/boards/ezkit.c
+++ b/arch/blackfin/mach-bf533/boards/ezkit.c
@@ -256,6 +256,30 @@ static struct platform_device bfin_pata_device = {
 };
 #endif
 
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+
+static struct gpio_keys_button bfin_gpio_keys_table[] = {
+	{BTN_0, GPIO_PF7, 1, "gpio-keys: BTN0"},
+	{BTN_1, GPIO_PF8, 1, "gpio-keys: BTN1"},
+	{BTN_2, GPIO_PF9, 1, "gpio-keys: BTN2"},
+	{BTN_3, GPIO_PF10, 1, "gpio-keys: BTN3"},
+};
+
+static struct gpio_keys_platform_data bfin_gpio_keys_data = {
+	.buttons        = bfin_gpio_keys_table,
+	.nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
+};
+
+static struct platform_device bfin_device_gpiokeys = {
+	.name      = "gpio-keys",
+	.dev = {
+		.platform_data = &bfin_gpio_keys_data,
+	},
+};
+#endif
+
 static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 	&smc91x_device,
@@ -280,6 +304,10 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
 	&bfin_pata_device,
 #endif
+
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+	&bfin_device_gpiokeys,
+#endif
 };
 
 static int __init ezkit_init(void)
diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c
index 8fde8d832850..689816937703 100644
--- a/arch/blackfin/mach-bf533/boards/stamp.c
+++ b/arch/blackfin/mach-bf533/boards/stamp.c
@@ -373,6 +373,29 @@ static struct platform_device bfin_pata_device = {
 };
 #endif
 
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+
+static struct gpio_keys_button bfin_gpio_keys_table[] = {
+	{BTN_0, GPIO_PF5, 1, "gpio-keys: BTN0"},
+	{BTN_1, GPIO_PF6, 1, "gpio-keys: BTN1"},
+	{BTN_2, GPIO_PF8, 1, "gpio-keys: BTN2"},
+};
+
+static struct gpio_keys_platform_data bfin_gpio_keys_data = {
+	.buttons        = bfin_gpio_keys_table,
+	.nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
+};
+
+static struct platform_device bfin_device_gpiokeys = {
+	.name      = "gpio-keys",
+	.dev = {
+		.platform_data = &bfin_gpio_keys_data,
+	},
+};
+#endif
+
 static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 	&rtc_device,
@@ -406,6 +429,10 @@ static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
 	&bfin_pata_device,
 #endif
+
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+	&bfin_device_gpiokeys,
+#endif
 };
 
 static int __init stamp_init(void)
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 07b0dc273d2f..3e0ad04d8d75 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -103,6 +103,30 @@ void __exit bfin_isp1761_exit(void)
 arch_initcall(bfin_isp1761_init);
 #endif
 
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+
+static struct gpio_keys_button bfin_gpio_keys_table[] = {
+	{BTN_0, GPIO_PF2, 1, "gpio-keys: BTN0"},
+	{BTN_1, GPIO_PF3, 1, "gpio-keys: BTN1"},
+	{BTN_2, GPIO_PF4, 1, "gpio-keys: BTN2"},
+	{BTN_3, GPIO_PF5, 1, "gpio-keys: BTN3"},
+};
+
+static struct gpio_keys_platform_data bfin_gpio_keys_data = {
+	.buttons        = bfin_gpio_keys_table,
+	.nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
+};
+
+static struct platform_device bfin_device_gpiokeys = {
+	.name      = "gpio-keys",
+	.dev = {
+		.platform_data = &bfin_gpio_keys_data,
+	},
+};
+#endif
+
 #if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
 static struct resource bfin_pcmcia_cf_resources[] = {
 	{
@@ -738,6 +762,10 @@ static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
 	&bfin_pata_device,
 #endif
+
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+	&bfin_device_gpiokeys,
+#endif
 };
 
 static int __init stamp_init(void)
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index 856b9db06663..4ca3288fd07c 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -514,6 +514,29 @@ static struct platform_device i2c_bfin_twi1_device = {
 #endif
 #endif
 
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#include <linux/gpio_keys.h>
+
+static struct gpio_keys_button bfin_gpio_keys_table[] = {
+	{BTN_0, GPIO_PB8, 1, "gpio-keys: BTN0"},
+	{BTN_1, GPIO_PB9, 1, "gpio-keys: BTN1"},
+	{BTN_2, GPIO_PB10, 1, "gpio-keys: BTN2"},
+	{BTN_3, GPIO_PB11, 1, "gpio-keys: BTN3"},
+};
+
+static struct gpio_keys_platform_data bfin_gpio_keys_data = {
+	.buttons        = bfin_gpio_keys_table,
+	.nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
+};
+
+static struct platform_device bfin_device_gpiokeys = {
+	.name      = "gpio-keys",
+	.dev = {
+		.platform_data = &bfin_gpio_keys_data,
+	},
+};
+#endif
+
 static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 	&rtc_device,
@@ -562,6 +585,10 @@ static struct platform_device *ezkit_devices[] __initdata = {
 	&i2c_bfin_twi1_device,
 #endif
 #endif
+
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+	&bfin_device_gpiokeys,
+#endif
 };
 
 static int __init stamp_init(void)
diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c
index 4ff8f6e7a11f..edfceb08a7d5 100644
--- a/arch/blackfin/mach-bf561/boards/ezkit.c
+++ b/arch/blackfin/mach-bf561/boards/ezkit.c
@@ -246,6 +246,30 @@ static struct platform_device bfin_pata_device = {
 };
 #endif
 
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+
+static struct gpio_keys_button bfin_gpio_keys_table[] = {
+	{BTN_0, GPIO_PF5, 1, "gpio-keys: BTN0"},
+	{BTN_1, GPIO_PF6, 1, "gpio-keys: BTN1"},
+	{BTN_2, GPIO_PF7, 1, "gpio-keys: BTN2"},
+	{BTN_3, GPIO_PF8, 1, "gpio-keys: BTN3"},
+};
+
+static struct gpio_keys_platform_data bfin_gpio_keys_data = {
+	.buttons        = bfin_gpio_keys_table,
+	.nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
+};
+
+static struct platform_device bfin_device_gpiokeys = {
+	.name      = "gpio-keys",
+	.dev = {
+		.platform_data = &bfin_gpio_keys_data,
+	},
+};
+#endif
+
 static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 	&smc91x_device,
@@ -258,12 +282,18 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 	&bfin_spi0_device,
 #endif
+
 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 	&bfin_uart_device,
 #endif
+
 #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
 	&bfin_pata_device,
 #endif
+
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+	&bfin_device_gpiokeys,
+#endif
 };
 
 static int __init ezkit_init(void)
-- 
cgit v1.2.3-59-g8ed1b


From 471b9a6c7304d5f59503d111e71e60a7e19fb9a0 Mon Sep 17 00:00:00 2001
From: Martin Strubel <hackfin@section5.ch>
Date: Sun, 27 Jan 2008 19:54:20 +0800
Subject: [Blackfin] arch: added Minotaur BSP

Signed-off-by: Martin Strubel <hackfin@section5.ch>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf537/boards/Kconfig    |   6 +
 arch/blackfin/mach-bf537/boards/Makefile   |   1 +
 arch/blackfin/mach-bf537/boards/minotaur.c | 317 +++++++++++++++++++++++++++++
 3 files changed, 324 insertions(+)
 create mode 100644 arch/blackfin/mach-bf537/boards/minotaur.c

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf537/boards/Kconfig b/arch/blackfin/mach-bf537/boards/Kconfig
index 96a15196e416..7e789dbef036 100644
--- a/arch/blackfin/mach-bf537/boards/Kconfig
+++ b/arch/blackfin/mach-bf537/boards/Kconfig
@@ -21,6 +21,12 @@ config PNAV10
 	help
 	  PNAV board support.
 
+config CAMSIG_MINOTAUR
+	bool "Cambridge Signal Processing LTD Minotaur"
+	depends on (BF537)
+	help
+	  Board supply package for CSP Minotaur
+
 config GENERIC_BF537_BOARD
 	bool "Generic"
 	help
diff --git a/arch/blackfin/mach-bf537/boards/Makefile b/arch/blackfin/mach-bf537/boards/Makefile
index 94a85174283a..87e450f29e37 100644
--- a/arch/blackfin/mach-bf537/boards/Makefile
+++ b/arch/blackfin/mach-bf537/boards/Makefile
@@ -6,3 +6,4 @@ obj-$(CONFIG_GENERIC_BF537_BOARD)      += generic_board.o
 obj-$(CONFIG_BFIN537_STAMP)            += stamp.o led.o
 obj-$(CONFIG_BFIN537_BLUETECHNIX_CM)   += cm_bf537.o
 obj-$(CONFIG_PNAV10)                   += pnav10.o
+obj-$(CONFIG_CAMSIG_MINOTAUR)          += minotaur.o
diff --git a/arch/blackfin/mach-bf537/boards/minotaur.c b/arch/blackfin/mach-bf537/boards/minotaur.c
new file mode 100644
index 000000000000..b8bbba85af53
--- /dev/null
+++ b/arch/blackfin/mach-bf537/boards/minotaur.c
@@ -0,0 +1,317 @@
+/*
+ */
+
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#include <linux/usb_isp1362.h>
+#endif
+#include <linux/pata_platform.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/usb_sl811.h>
+#include <asm/dma.h>
+#include <asm/bfin5xx_spi.h>
+#include <asm/reboot.h>
+#include <linux/spi/ad7877.h>
+
+/*
+ * Name the Board for the /proc/cpuinfo
+ */
+char *bfin_board_name = "CamSig Minotaur BF537";
+
+#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
+static struct resource bfin_pcmcia_cf_resources[] = {
+	{
+		.start = 0x20310000, /* IO PORT */
+		.end = 0x20312000,
+		.flags = IORESOURCE_MEM,
+	}, {
+		.start = 0x20311000, /* Attribute Memory */
+		.end = 0x20311FFF,
+		.flags = IORESOURCE_MEM,
+	}, {
+		.start = IRQ_PF4,
+		.end = IRQ_PF4,
+		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
+	}, {
+		.start = IRQ_PF6, /* Card Detect PF6 */
+		.end = IRQ_PF6,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bfin_pcmcia_cf_device = {
+	.name = "bfin_cf_pcmcia",
+	.id = -1,
+	.num_resources = ARRAY_SIZE(bfin_pcmcia_cf_resources),
+	.resource = bfin_pcmcia_cf_resources,
+};
+#endif
+
+#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+static struct platform_device rtc_device = {
+	.name = "rtc-bfin",
+	.id   = -1,
+};
+#endif
+
+#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+static struct platform_device bfin_mac_device = {
+	.name = "bfin_mac",
+};
+#endif
+
+#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+static struct resource net2272_bfin_resources[] = {
+	{
+		.start = 0x20300000,
+		.end = 0x20300000 + 0x100,
+		.flags = IORESOURCE_MEM,
+	}, {
+		.start = IRQ_PF7,
+		.end = IRQ_PF7,
+		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+	},
+};
+
+static struct platform_device net2272_bfin_device = {
+	.name = "net2272",
+	.id = -1,
+	.num_resources = ARRAY_SIZE(net2272_bfin_resources),
+	.resource = net2272_bfin_resources,
+};
+#endif
+
+#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+/* all SPI peripherals info goes here */
+
+#if defined(CONFIG_MTD_M25P80) \
+	|| defined(CONFIG_MTD_M25P80_MODULE)
+
+/* Partition sizes */
+#define FLASH_SIZE       0x00400000
+#define PSIZE_UBOOT      0x00030000
+#define PSIZE_INITRAMFS  0x00240000
+
+static struct mtd_partition bfin_spi_flash_partitions[] = {
+	{
+		.name       = "uboot",
+		.size       = PSIZE_UBOOT,
+		.offset     = 0x000000,
+		.mask_flags = MTD_CAP_ROM
+	}, {
+		.name       = "initramfs",
+		.size       = PSIZE_INITRAMFS,
+		.offset     = PSIZE_UBOOT
+	}, {
+		.name       = "opt",
+		.size       = FLASH_SIZE - (PSIZE_UBOOT + PSIZE_INITRAMFS),
+		.offset     = PSIZE_UBOOT + PSIZE_INITRAMFS,
+	}
+};
+
+static struct flash_platform_data bfin_spi_flash_data = {
+	.name = "m25p80",
+	.parts = bfin_spi_flash_partitions,
+	.nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
+	.type = "m25p64",
+};
+
+/* SPI flash chip (m25p64) */
+static struct bfin5xx_spi_chip spi_flash_chip_info = {
+	.enable_dma = 0,         /* use dma transfer with this chip*/
+	.bits_per_word = 8,
+};
+#endif
+
+#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE)
+static struct bfin5xx_spi_chip spi_mmc_chip_info = {
+	.enable_dma = 1,
+	.bits_per_word = 8,
+};
+#endif
+
+static struct spi_board_info bfin_spi_board_info[] __initdata = {
+#if defined(CONFIG_MTD_M25P80) \
+	|| defined(CONFIG_MTD_M25P80_MODULE)
+	{
+		/* the modalias must be the same as spi device driver name */
+		.modalias = "m25p80", /* Name of spi_driver for this device */
+		.max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
+		.bus_num = 0, /* Framework bus number */
+		.chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/
+		.platform_data = &bfin_spi_flash_data,
+		.controller_data = &spi_flash_chip_info,
+		.mode = SPI_MODE_3,
+	},
+#endif
+
+#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE)
+	{
+		.modalias = "spi_mmc_dummy",
+		.max_speed_hz = 5000000,     /* max spi clock (SCK) speed in HZ */
+		.bus_num = 0,
+		.chip_select = 0,
+		.platform_data = NULL,
+		.controller_data = &spi_mmc_chip_info,
+		.mode = SPI_MODE_3,
+	},
+	{
+		.modalias = "spi_mmc",
+		.max_speed_hz = 5000000,     /* max spi clock (SCK) speed in HZ */
+		.bus_num = 0,
+		.chip_select = CONFIG_SPI_MMC_CS_CHAN,
+		.platform_data = NULL,
+		.controller_data = &spi_mmc_chip_info,
+		.mode = SPI_MODE_3,
+	},
+#endif
+};
+
+/* SPI controller data */
+static struct bfin5xx_spi_master bfin_spi0_info = {
+	.num_chipselect = 8,
+	.enable_dma = 1,  /* master has the ability to do dma transfer */
+};
+
+/* SPI (0) */
+static struct resource bfin_spi0_resource[] = {
+	[0] = {
+		.start = SPI0_REGBASE,
+		.end   = SPI0_REGBASE + 0xFF,
+		.flags = IORESOURCE_MEM,
+		},
+	[1] = {
+		.start = CH_SPI,
+		.end   = CH_SPI,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bfin_spi0_device = {
+	.name = "bfin-spi",
+	.id = 0, /* Bus number */
+	.num_resources = ARRAY_SIZE(bfin_spi0_resource),
+	.resource = bfin_spi0_resource,
+	.dev = {
+		.platform_data = &bfin_spi0_info, /* Passed to driver */
+	},
+};
+#endif  /* spi master and devices */
+
+#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+static struct resource bfin_uart_resources[] = {
+	{
+		.start = 0xFFC00400,
+		.end = 0xFFC004FF,
+		.flags = IORESOURCE_MEM,
+	}, {
+		.start = 0xFFC02000,
+		.end = 0xFFC020FF,
+		.flags = IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device bfin_uart_device = {
+	.name = "bfin-uart",
+	.id = 1,
+	.num_resources = ARRAY_SIZE(bfin_uart_resources),
+	.resource = bfin_uart_resources,
+};
+#endif
+
+#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+static struct resource bfin_twi0_resource[] = {
+	[0] = {
+		.start = TWI0_REGBASE,
+		.end   = TWI0_REGBASE + 0xFF,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = IRQ_TWI,
+		.end   = IRQ_TWI,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device i2c_bfin_twi_device = {
+	.name = "i2c-bfin-twi",
+	.id = 0,
+	.num_resources = ARRAY_SIZE(bfin_twi0_resource),
+	.resource = bfin_twi0_resource,
+};
+#endif
+
+#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+static struct platform_device bfin_sport0_uart_device = {
+	.name = "bfin-sport-uart",
+	.id = 0,
+};
+
+static struct platform_device bfin_sport1_uart_device = {
+	.name = "bfin-sport-uart",
+	.id = 1,
+};
+#endif
+
+static struct platform_device *minotaur_devices[] __initdata = {
+#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
+	&bfin_pcmcia_cf_device,
+#endif
+
+#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+	&rtc_device,
+#endif
+
+#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+	&bfin_mac_device,
+#endif
+
+#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+	&net2272_bfin_device,
+#endif
+
+#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+	&bfin_spi0_device,
+#endif
+
+#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+	&bfin_uart_device,
+#endif
+
+#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+	&i2c_bfin_twi_device,
+#endif
+
+#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+	&bfin_sport0_uart_device,
+	&bfin_sport1_uart_device,
+#endif
+
+};
+
+static int __init minotaur_init(void)
+{
+	printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__);
+	platform_add_devices(minotaur_devices, ARRAY_SIZE(minotaur_devices));
+#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+	spi_register_board_info(bfin_spi_board_info,
+				ARRAY_SIZE(bfin_spi_board_info));
+#endif
+
+	return 0;
+}
+
+arch_initcall(minotaur_init);
+
+void native_machine_restart(char *cmd)
+{
+	/* workaround reboot hang when booting from SPI */
+	if ((bfin_read_SYSCR() & 0x7) == 0x3)
+		bfin_gpio_reset_spi0_ssel1();
+}
-- 
cgit v1.2.3-59-g8ed1b


From 8baf560b4c901fb554d15e056aaa7f34b2345be5 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Mon, 24 Dec 2007 18:51:34 +0800
Subject: [Blackfin] arch: Enable both edge triggered GPIO IRQs on BF54x and
 use irq_to_gpio()

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-common/ints-priority-sc.c | 67 +++++++++++++++++++---------
 1 file changed, 46 insertions(+), 21 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-common/ints-priority-sc.c b/arch/blackfin/mach-common/ints-priority-sc.c
index 36ef4d17dd35..dec42acb5de0 100644
--- a/arch/blackfin/mach-common/ints-priority-sc.c
+++ b/arch/blackfin/mach-common/ints-priority-sc.c
@@ -483,6 +483,10 @@ static void bfin_demux_gpio_irq(unsigned int intb_irq,
 static unsigned char irq2pint_lut[NR_PINTS];
 static unsigned char pint2irq_lut[NR_PINT_SYS_IRQS * NR_PINT_BITS];
 
+static unsigned int gpio_both_edge_triggered[NR_PINT_SYS_IRQS];
+static unsigned short gpio_enabled[gpio_bank(MAX_BLACKFIN_GPIOS)];
+
+
 struct pin_int_t {
 	unsigned int mask_set;
 	unsigned int mask_clear;
@@ -549,13 +553,20 @@ void init_pint_lut(void)
 
 }
 
-static unsigned short gpio_enabled[gpio_bank(MAX_BLACKFIN_GPIOS)];
-
 static void bfin_gpio_ack_irq(unsigned int irq)
 {
 	u8 pint_val = irq2pint_lut[irq - SYS_IRQS];
+	u32 pintbit = PINT_BIT(pint_val);
+	u8 bank = PINT_2_BANK(pint_val);
+
+	if (unlikely(gpio_both_edge_triggered[bank] & pintbit)) {
+		if (pint[bank]->invert_set & pintbit)
+			pint[bank]->invert_clear = pintbit;
+		else
+			pint[bank]->invert_set = pintbit;
+	}
+	pint[bank]->request = pintbit;
 
-	pint[PINT_2_BANK(pint_val)]->request = PINT_BIT(pint_val);
 	SSYNC();
 }
 
@@ -565,6 +576,13 @@ static void bfin_gpio_mask_ack_irq(unsigned int irq)
 	u32 pintbit = PINT_BIT(pint_val);
 	u8 bank = PINT_2_BANK(pint_val);
 
+	if (unlikely(gpio_both_edge_triggered[bank] & pintbit)) {
+		if (pint[bank]->invert_set & pintbit)
+			pint[bank]->invert_clear = pintbit;
+		else
+			pint[bank]->invert_set = pintbit;
+	}
+
 	pint[bank]->request = pintbit;
 	pint[bank]->mask_clear = pintbit;
 	SSYNC();
@@ -593,7 +611,7 @@ static unsigned int bfin_gpio_irq_startup(unsigned int irq)
 {
 	unsigned int ret;
 	char buf[8];
-	u16 gpionr = irq - IRQ_PA0;
+	u16 gpionr = irq_to_gpio(irq);
 	u8 pint_val = irq2pint_lut[irq - SYS_IRQS];
 
 	if (pint_val == IRQ_NOT_AVAIL) {
@@ -618,9 +636,11 @@ static unsigned int bfin_gpio_irq_startup(unsigned int irq)
 
 static void bfin_gpio_irq_shutdown(unsigned int irq)
 {
+	u16 gpionr = irq_to_gpio(irq);
+
 	bfin_gpio_mask_irq(irq);
-	gpio_free(irq - IRQ_PA0);
-	gpio_enabled[gpio_bank(irq - IRQ_PA0)] &= ~gpio_bit(irq - IRQ_PA0);
+	gpio_free(gpionr);
+	gpio_enabled[gpio_bank(gpionr)] &= ~gpio_bit(gpionr);
 }
 
 static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
@@ -628,7 +648,7 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
 
 	unsigned int ret;
 	char buf[8];
-	u16 gpionr = irq - IRQ_PA0;
+	u16 gpionr = irq_to_gpio(irq);
 	u8 pint_val = irq2pint_lut[irq - SYS_IRQS];
 	u32 pintbit = PINT_BIT(pint_val);
 	u8 bank = PINT_2_BANK(pint_val);
@@ -660,28 +680,33 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
 
 	gpio_direction_input(gpionr);
 
-	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
-		pint[bank]->edge_set = pintbit;
-	} else {
-		pint[bank]->edge_clear = pintbit;
-	}
-
 	if ((type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW)))
 		pint[bank]->invert_set = pintbit;	/* low or falling edge denoted by one */
 	else
-		pint[bank]->invert_set = pintbit;	/* high or rising edge denoted by zero */
+		pint[bank]->invert_clear = pintbit;	/* high or rising edge denoted by zero */
 
-	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
-		pint[bank]->invert_set = pintbit;
-	else
-		pint[bank]->invert_set = pintbit;
+	if ((type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
+	    == (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
 
-	SSYNC();
+		gpio_both_edge_triggered[bank] |= pintbit;
 
-	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
+		if (gpio_get_value(gpionr))
+			pint[bank]->invert_set = pintbit;
+		else
+			pint[bank]->invert_clear = pintbit;
+	} else {
+		gpio_both_edge_triggered[bank] &= ~pintbit;
+	}
+
+	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
+		pint[bank]->edge_set = pintbit;
 		set_irq_handler(irq, handle_edge_irq);
-	else
+	} else {
+		pint[bank]->edge_clear = pintbit;
 		set_irq_handler(irq, handle_level_irq);
+	}
+
+	SSYNC();
 
 	return 0;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 7285846ff8d09879cacac5c6d40fc8e8443c7cf0 Mon Sep 17 00:00:00 2001
From: Martin Strubel <hackfin@section5.ch>
Date: Mon, 24 Dec 2007 19:12:32 +0800
Subject: [Blackfin] arch: disable bfin_get_ether_addr fucntion for boards when
 do not use MAC driver

Signed-off-by: Martin Strubel <hackfin@section5.ch>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf537/boards/generic_board.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf537/boards/generic_board.c b/arch/blackfin/mach-bf537/boards/generic_board.c
index 09f4bfbd2350..7fd873f59242 100644
--- a/arch/blackfin/mach-bf537/boards/generic_board.c
+++ b/arch/blackfin/mach-bf537/boards/generic_board.c
@@ -733,9 +733,11 @@ void native_machine_restart(char *cmd)
 		bfin_gpio_reset_spi0_ssel1();
 }
 
+#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
 void bfin_get_ether_addr(char *addr)
 {
 	random_ether_addr(addr);
 	printk(KERN_WARNING "%s:%s: Setting Ethernet MAC to a random one\n", __FILE__, __func__);
 }
 EXPORT_SYMBOL(bfin_get_ether_addr);
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From 43f73fef07eb70be7d508b34eeddf5985e300bb1 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <michael.frysinger@analog.com>
Date: Mon, 24 Dec 2007 19:35:35 +0800
Subject: [Blackfin] arch: pull in linux/etherdevice.h for random_ether_addr()
 used in bfin_get_ether_addr()

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf537/boards/cm_bf537.c      | 1 +
 arch/blackfin/mach-bf537/boards/generic_board.c | 1 +
 arch/blackfin/mach-bf537/boards/pnav10.c        | 1 +
 3 files changed, 3 insertions(+)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537.c b/arch/blackfin/mach-bf537/boards/cm_bf537.c
index a102615cac7c..8703b67d5ec6 100644
--- a/arch/blackfin/mach-bf537/boards/cm_bf537.c
+++ b/arch/blackfin/mach-bf537/boards/cm_bf537.c
@@ -29,6 +29,7 @@
  */
 
 #include <linux/device.h>
+#include <linux/etherdevice.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
diff --git a/arch/blackfin/mach-bf537/boards/generic_board.c b/arch/blackfin/mach-bf537/boards/generic_board.c
index 7fd873f59242..1c97219a2ab5 100644
--- a/arch/blackfin/mach-bf537/boards/generic_board.c
+++ b/arch/blackfin/mach-bf537/boards/generic_board.c
@@ -29,6 +29,7 @@
  */
 
 #include <linux/device.h>
+#include <linux/etherdevice.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
diff --git a/arch/blackfin/mach-bf537/boards/pnav10.c b/arch/blackfin/mach-bf537/boards/pnav10.c
index fd5f4a6f08e4..23e10c7dab5b 100644
--- a/arch/blackfin/mach-bf537/boards/pnav10.c
+++ b/arch/blackfin/mach-bf537/boards/pnav10.c
@@ -29,6 +29,7 @@
  */
 
 #include <linux/device.h>
+#include <linux/etherdevice.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
-- 
cgit v1.2.3-59-g8ed1b


From 37931db5bdce35d37a9bdf93082604620ba3341a Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Mon, 24 Dec 2007 19:43:39 +0800
Subject: [Blackfin] arch: Restore default DMA priority over core on bf54x.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/Kconfig | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index a241a0a27de2..ce521a921bee 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -774,7 +774,6 @@ config C_AMCKEN
 
 config C_CDPRIO
 	bool "DMA has priority over core for ext. accesses"
-	depends on !BF54x
 	default n
 
 config C_B0PEN
-- 
cgit v1.2.3-59-g8ed1b


From 76a7f4049277691b9b800a23dc09009374cdaa21 Mon Sep 17 00:00:00 2001
From: Enrik Berkhan <Enrik.Berkhan@ge.com>
Date: Mon, 24 Dec 2007 19:51:31 +0800
Subject: [Blackfin] arch: fix bug when DMA operation related core B of BF561

- Before DMA'ing data to core B L1 memory, caches have to be flushed.
- Before DMA'ing data from core B L1 memory, caches have to be invalidated.
- Fix lock/unlock.

Signed-off-by: Enrik Berkhan <Enrik.Berkhan@ge.com>
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf561/coreb.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf561/coreb.c b/arch/blackfin/mach-bf561/coreb.c
index 5d1d21b4c2a7..1b44e9e6dc3b 100644
--- a/arch/blackfin/mach-bf561/coreb.c
+++ b/arch/blackfin/mach-bf561/coreb.c
@@ -33,7 +33,9 @@
 #include <linux/ioport.h>
 #include <linux/module.h>
 #include <linux/uaccess.h>
+#include <linux/fs.h>
 #include <asm/dma.h>
+#include <asm/cacheflush.h>
 
 #define MODULE_VER		"v0.1"
 
@@ -90,11 +92,12 @@ static ssize_t coreb_write(struct file *file, const char *buf, size_t count,
 
 		coreb_dma_done = 0;
 
+		flush_dcache_range((unsigned long)buf, (unsigned long)(buf+len));
 		/* Source Channel */
 		set_dma_start_addr(CH_MEM_STREAM2_SRC, (unsigned long)buf);
 		set_dma_x_count(CH_MEM_STREAM2_SRC, len);
 		set_dma_x_modify(CH_MEM_STREAM2_SRC, sizeof(char));
-		set_dma_config(CH_MEM_STREAM2_SRC, RESTART);
+		set_dma_config(CH_MEM_STREAM2_SRC, 0);
 		/* Destination Channel */
 		set_dma_start_addr(CH_MEM_STREAM2_DEST, coreb_base + p);
 		set_dma_x_count(CH_MEM_STREAM2_DEST, len);
@@ -135,11 +138,12 @@ static ssize_t coreb_read(struct file *file, char *buf, size_t count,
 
 		coreb_dma_done = 0;
 
+		invalidate_dcache_range((unsigned long)buf, (unsigned long)(buf+len));
 		/* Source Channel */
 		set_dma_start_addr(CH_MEM_STREAM2_SRC, coreb_base + p);
 		set_dma_x_count(CH_MEM_STREAM2_SRC, len);
 		set_dma_x_modify(CH_MEM_STREAM2_SRC, sizeof(char));
-		set_dma_config(CH_MEM_STREAM2_SRC, RESTART);
+		set_dma_config(CH_MEM_STREAM2_SRC, 0);
 		/* Destination Channel */
 		set_dma_start_addr(CH_MEM_STREAM2_DEST, (unsigned long)buf);
 		set_dma_x_count(CH_MEM_STREAM2_DEST, len);
@@ -266,7 +270,7 @@ static int coreb_ioctl(struct inode *inode, struct file *file,
 		coreb_status |= COREB_IS_RUNNING;
 		bfin_write_SICA_SYSCR(bfin_read_SICA_SYSCR() & ~0x0020);
 		SSYNC();
-		spin_lock_irq(&coreb_lock);
+		spin_unlock_irq(&coreb_lock);
 		break;
 #if defined(CONFIG_BF561_COREB_RESET)
 	case CMD_COREB_STOP:
@@ -275,7 +279,7 @@ static int coreb_ioctl(struct inode *inode, struct file *file,
 		bfin_write_SICA_SYSCR(bfin_read_SICA_SYSCR() | 0x0020);
 		bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | 0x0080);
 		coreb_status &= ~COREB_IS_RUNNING;
-		spin_lock_irq(&coreb_lock);
+		spin_unlock_irq(&coreb_lock);
 		break;
 	case CMD_COREB_RESET:
 		printk(KERN_INFO "Resetting Core B\n");
-- 
cgit v1.2.3-59-g8ed1b


From 79f1ec862ae2e693b85fd7c94654ba1779ff5863 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 24 Dec 2007 20:03:51 +0800
Subject: [Blackfin] arch: Spelling fixes

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/early_printk.c      | 2 +-
 arch/blackfin/mach-bf548/ints-priority.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/early_printk.c b/arch/blackfin/kernel/early_printk.c
index c892777267d5..60f67f90fe35 100644
--- a/arch/blackfin/kernel/early_printk.c
+++ b/arch/blackfin/kernel/early_printk.c
@@ -187,7 +187,7 @@ asmlinkage void __init init_early_exception_vectors(void)
 	bfin_write_EVT15(early_trap);
 	CSYNC();
 
-	/* Set all the return from interupt, exception, NMI to a known place
+	/* Set all the return from interrupt, exception, NMI to a known place
 	 * so if we do a RETI, RETX or RETN by mistake - we go somewhere known
 	 * Note - don't change RETS - we are in a subroutine, or
 	 * RETE - since it might screw up if emulator is attached
diff --git a/arch/blackfin/mach-bf548/ints-priority.c b/arch/blackfin/mach-bf548/ints-priority.c
index 05e3b3cb4c0a..2665653cee37 100644
--- a/arch/blackfin/mach-bf548/ints-priority.c
+++ b/arch/blackfin/mach-bf548/ints-priority.c
@@ -4,7 +4,7 @@
  * Author:       Michael Hennerich
  *
  * Created:
- * Description:  Set up the interupt priorities
+ * Description:  Set up the interrupt priorities
  *
  * Modified:
  *               Copyright 2004-2006 Analog Devices Inc.
-- 
cgit v1.2.3-59-g8ed1b


From a546b0ac5988348446e4fd5987df699b4c9b1f2a Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Mon, 24 Dec 2007 20:19:51 +0800
Subject: [Blackfin] arch: Fix BUG - kernel sometimes would stuck with
 KEYBOARD_GPIO on

Make sure the SYSTEM reset completes before we issue the CORE reset

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/reboot.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
index ae28aac6fec1..06501a594dda 100644
--- a/arch/blackfin/kernel/reboot.c
+++ b/arch/blackfin/kernel/reboot.c
@@ -34,9 +34,11 @@ void bfin_reset(void)
 	while (1) {
 		/* initiate system soft reset with magic 0x7 */
 		bfin_write_SWRST(0x7);
+		bfin_read_SWRST();
 		asm("ssync;");
 		/* clear system soft reset */
 		bfin_write_SWRST(0);
+		bfin_read_SWRST();
 		asm("ssync;");
 		/* issue core reset */
 		asm("raise 1");
-- 
cgit v1.2.3-59-g8ed1b


From 6b5eace2f15b53d5a6849078d22e78db77625929 Mon Sep 17 00:00:00 2001
From: Robin Getz <robin.getz@analog.com>
Date: Thu, 10 Jan 2008 17:57:56 +0800
Subject: [Blackfin] arch: Don't oops_in_progress if single step is comming
 from the kernel

Don't oops_in_progress if single step is comming from the
kernel, which happens if a single step occurs after a exception cause.
This fixes up the remaining issues in the toolchain bug.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/traps.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index c90f16825f98..5e840727a258 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -201,9 +201,9 @@ asmlinkage void trap_c(struct pt_regs *fp)
 	/* TODO: check to see if we are in some sort of deferred HWERR
 	 * that we should be able to recover from, not kernel panic
 	 */
-	if ((bfin_read_IPEND() & 0xFFC0)
+	if ((bfin_read_IPEND() & 0xFFC0) && (trapnr != VEC_STEP)
 #ifdef CONFIG_KGDB
-		&& trapnr != VEC_EXCPT02
+		&& (trapnr != VEC_EXCPT02)
 #endif
 	){
 		console_verbose();
-- 
cgit v1.2.3-59-g8ed1b


From e31639540d2b1474766e95c1a7b1b698468ba092 Mon Sep 17 00:00:00 2001
From: Bryan Wu <bryan.wu@analog.com>
Date: Thu, 24 Jan 2008 16:19:15 +0800
Subject: [Blackfin] arch: enable generic GPIO based I2C driver in STAMP-BF533,
 EZKIT-BF533 and EZKIT-BF561 boards

Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf533/boards/ezkit.c | 24 ++++++++++++++++++++++++
 arch/blackfin/mach-bf533/boards/stamp.c | 24 ++++++++++++++++++++++++
 arch/blackfin/mach-bf561/boards/ezkit.c | 24 ++++++++++++++++++++++++
 3 files changed, 72 insertions(+)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c
index ead5c12cbe90..c37dd45c8803 100644
--- a/arch/blackfin/mach-bf533/boards/ezkit.c
+++ b/arch/blackfin/mach-bf533/boards/ezkit.c
@@ -280,6 +280,26 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
+#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+#include <linux/i2c-gpio.h>
+
+static struct i2c_gpio_platform_data i2c_gpio_data = {
+	.sda_pin		= 1,
+	.scl_pin		= 0,
+	.sda_is_open_drain	= 0,
+	.scl_is_open_drain	= 0,
+	.udelay			= 40,
+};
+
+static struct platform_device i2c_gpio_device = {
+	.name		= "i2c-gpio",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &i2c_gpio_data,
+	},
+};
+#endif
+
 static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 	&smc91x_device,
@@ -308,6 +328,10 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 	&bfin_device_gpiokeys,
 #endif
+
+#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+	&i2c_gpio_device,
+#endif
 };
 
 static int __init ezkit_init(void)
diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c
index 689816937703..cd87df730ef5 100644
--- a/arch/blackfin/mach-bf533/boards/stamp.c
+++ b/arch/blackfin/mach-bf533/boards/stamp.c
@@ -396,6 +396,26 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
+#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+#include <linux/i2c-gpio.h>
+
+static struct i2c_gpio_platform_data i2c_gpio_data = {
+	.sda_pin		= 2,
+	.scl_pin		= 3,
+	.sda_is_open_drain	= 0,
+	.scl_is_open_drain	= 0,
+	.udelay			= 40,
+};
+
+static struct platform_device i2c_gpio_device = {
+	.name		= "i2c-gpio",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &i2c_gpio_data,
+	},
+};
+#endif
+
 static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 	&rtc_device,
@@ -433,6 +453,10 @@ static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 	&bfin_device_gpiokeys,
 #endif
+
+#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+	&i2c_gpio_device,
+#endif
 };
 
 static int __init stamp_init(void)
diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c
index edfceb08a7d5..36114dd4ab3a 100644
--- a/arch/blackfin/mach-bf561/boards/ezkit.c
+++ b/arch/blackfin/mach-bf561/boards/ezkit.c
@@ -270,6 +270,26 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
+#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+#include <linux/i2c-gpio.h>
+
+static struct i2c_gpio_platform_data i2c_gpio_data = {
+	.sda_pin		= 1,
+	.scl_pin		= 0,
+	.sda_is_open_drain	= 0,
+	.scl_is_open_drain	= 0,
+	.udelay			= 40,
+};
+
+static struct platform_device i2c_gpio_device = {
+	.name		= "i2c-gpio",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &i2c_gpio_data,
+	},
+};
+#endif
+
 static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 	&smc91x_device,
@@ -294,6 +314,10 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 	&bfin_device_gpiokeys,
 #endif
+
+#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+	&i2c_gpio_device,
+#endif
 };
 
 static int __init ezkit_init(void)
-- 
cgit v1.2.3-59-g8ed1b


From aee3a29240ad167ad7875d859506d8bb90431c70 Mon Sep 17 00:00:00 2001
From: Robin Getz <robin.getz@analog.com>
Date: Fri, 11 Jan 2008 16:53:00 +0800
Subject: [Blackfin] arch: print out list of modules if kernel is crashing and
 tell people if the kernel is tainted

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/traps.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 5e840727a258..66b5f3e3ae2a 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -497,6 +497,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
 			dump_bfin_trace_buffer();
 		show_stack(current, &stack);
 		if (oops_in_progress) {
+			print_modules();
 #ifndef CONFIG_ACCESS_CHECK
 			printk(KERN_EMERG "Please turn on "
 			       "CONFIG_ACCESS_CHECK\n");
@@ -761,7 +762,7 @@ void show_regs(struct pt_regs *fp)
 	unsigned int i;
 	unsigned long flags;
 
-	printk(KERN_NOTICE "\n" KERN_NOTICE "SEQUENCER STATUS:\n");
+	printk(KERN_NOTICE "\n" KERN_NOTICE "SEQUENCER STATUS:\t\t%s\n", print_tainted());
 	printk(KERN_NOTICE " SEQSTAT: %08lx  IPEND: %04lx  SYSCFG: %04lx\n",
 		(long)fp->seqstat, fp->ipend, fp->syscfg);
 	printk(KERN_NOTICE "  HWERRCAUSE: 0x%lx\n",
-- 
cgit v1.2.3-59-g8ed1b


From 7a1a6d00618bce53ae88e501ff5d4b82522db926 Mon Sep 17 00:00:00 2001
From: Bernd Schmidt <bernd.schmidt@analog.com>
Date: Fri, 11 Jan 2008 16:58:44 +0800
Subject: [Blackfin] arch: move all code related to CPLB handling into a new
 subdirectory under kernel/

Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/Makefile                      |   2 +
 arch/blackfin/kernel/Makefile               |   2 +-
 arch/blackfin/kernel/cacheinit.c            |  67 ---
 arch/blackfin/kernel/cplb-nompu/Makefile    |   8 +
 arch/blackfin/kernel/cplb-nompu/cacheinit.c |  67 +++
 arch/blackfin/kernel/cplb-nompu/cplbhdlr.S  | 130 ++++++
 arch/blackfin/kernel/cplb-nompu/cplbinfo.c  | 208 +++++++++
 arch/blackfin/kernel/cplb-nompu/cplbinit.c  | 437 +++++++++++++++++++
 arch/blackfin/kernel/cplb-nompu/cplbmgr.S   | 646 ++++++++++++++++++++++++++++
 arch/blackfin/kernel/cplbinit.c             | 437 -------------------
 arch/blackfin/mach-common/Makefile          |   3 +-
 arch/blackfin/mach-common/cplbhdlr.S        | 130 ------
 arch/blackfin/mach-common/cplbinfo.c        | 208 ---------
 arch/blackfin/mach-common/cplbmgr.S         | 646 ----------------------------
 14 files changed, 1500 insertions(+), 1491 deletions(-)
 delete mode 100644 arch/blackfin/kernel/cacheinit.c
 create mode 100644 arch/blackfin/kernel/cplb-nompu/Makefile
 create mode 100644 arch/blackfin/kernel/cplb-nompu/cacheinit.c
 create mode 100644 arch/blackfin/kernel/cplb-nompu/cplbhdlr.S
 create mode 100644 arch/blackfin/kernel/cplb-nompu/cplbinfo.c
 create mode 100644 arch/blackfin/kernel/cplb-nompu/cplbinit.c
 create mode 100644 arch/blackfin/kernel/cplb-nompu/cplbmgr.S
 delete mode 100644 arch/blackfin/kernel/cplbinit.c
 delete mode 100644 arch/blackfin/mach-common/cplbhdlr.S
 delete mode 100644 arch/blackfin/mach-common/cplbinfo.c
 delete mode 100644 arch/blackfin/mach-common/cplbmgr.S

(limited to 'arch')

diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile
index 0c9680eac8ef..2fc899c5e45f 100644
--- a/arch/blackfin/Makefile
+++ b/arch/blackfin/Makefile
@@ -82,6 +82,8 @@ core-y   += arch/$(ARCH)/mach-$(MACHINE)/
 core-y   += arch/$(ARCH)/mach-$(MACHINE)/boards/
 endif
 
+core-y	 += arch/$(ARCH)/kernel/cplb-nompu/
+
 libs-y   += arch/$(ARCH)/lib/
 
 drivers-$(CONFIG_OPROFILE) += arch/$(ARCH)/oprofile/
diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile
index 8a4cfb293b27..318b9b692a48 100644
--- a/arch/blackfin/kernel/Makefile
+++ b/arch/blackfin/kernel/Makefile
@@ -7,7 +7,7 @@ extra-y := init_task.o vmlinux.lds
 obj-y := \
 	entry.o process.o bfin_ksyms.o ptrace.o setup.o signal.o \
 	sys_bfin.o time.o traps.o irqchip.o dma-mapping.o flat.o \
-	fixed_code.o cplbinit.o cacheinit.o reboot.o bfin_gpio.o
+	fixed_code.o reboot.o bfin_gpio.o
 
 obj-$(CONFIG_BFIN_GPTIMERS)          += gptimers.o
 obj-$(CONFIG_MODULES)                += module.o
diff --git a/arch/blackfin/kernel/cacheinit.c b/arch/blackfin/kernel/cacheinit.c
deleted file mode 100644
index 62cbba7364b0..000000000000
--- a/arch/blackfin/kernel/cacheinit.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- *               Copyright 2004-2007 Analog Devices Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <linux/cpu.h>
-
-#include <asm/cacheflush.h>
-#include <asm/blackfin.h>
-#include <asm/cplb.h>
-#include <asm/cplbinit.h>
-
-#if defined(CONFIG_BFIN_ICACHE)
-void bfin_icache_init(void)
-{
-	unsigned long *table = icplb_table;
-	unsigned long ctrl;
-	int i;
-
-	for (i = 0; i < MAX_CPLBS; i++) {
-		unsigned long addr = *table++;
-		unsigned long data = *table++;
-		if (addr == (unsigned long)-1)
-			break;
-		bfin_write32(ICPLB_ADDR0 + i * 4, addr);
-		bfin_write32(ICPLB_DATA0 + i * 4, data);
-	}
-	ctrl = bfin_read_IMEM_CONTROL();
-	ctrl |= IMC | ENICPLB;
-	bfin_write_IMEM_CONTROL(ctrl);
-}
-#endif
-
-#if defined(CONFIG_BFIN_DCACHE)
-void bfin_dcache_init(void)
-{
-	unsigned long *table = dcplb_table;
-	unsigned long ctrl;
-	int i;
-
-	for (i = 0; i < MAX_CPLBS; i++) {
-		unsigned long addr = *table++;
-		unsigned long data = *table++;
-		if (addr == (unsigned long)-1)
-			break;
-		bfin_write32(DCPLB_ADDR0 + i * 4, addr);
-		bfin_write32(DCPLB_DATA0 + i * 4, data);
-	}
-	ctrl = bfin_read_DMEM_CONTROL();
-	ctrl |= DMEM_CNTR;
-	bfin_write_DMEM_CONTROL(ctrl);
-}
-#endif
diff --git a/arch/blackfin/kernel/cplb-nompu/Makefile b/arch/blackfin/kernel/cplb-nompu/Makefile
new file mode 100644
index 000000000000..d36ea9b5382e
--- /dev/null
+++ b/arch/blackfin/kernel/cplb-nompu/Makefile
@@ -0,0 +1,8 @@
+#
+# arch/blackfin/kernel/cplb-nompu/Makefile
+#
+
+obj-y := cplbinit.o cacheinit.o cplbhdlr.o cplbmgr.o
+
+obj-$(CONFIG_CPLB_INFO) += cplbinfo.o
+
diff --git a/arch/blackfin/kernel/cplb-nompu/cacheinit.c b/arch/blackfin/kernel/cplb-nompu/cacheinit.c
new file mode 100644
index 000000000000..62cbba7364b0
--- /dev/null
+++ b/arch/blackfin/kernel/cplb-nompu/cacheinit.c
@@ -0,0 +1,67 @@
+/*
+ *               Copyright 2004-2007 Analog Devices Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/cpu.h>
+
+#include <asm/cacheflush.h>
+#include <asm/blackfin.h>
+#include <asm/cplb.h>
+#include <asm/cplbinit.h>
+
+#if defined(CONFIG_BFIN_ICACHE)
+void bfin_icache_init(void)
+{
+	unsigned long *table = icplb_table;
+	unsigned long ctrl;
+	int i;
+
+	for (i = 0; i < MAX_CPLBS; i++) {
+		unsigned long addr = *table++;
+		unsigned long data = *table++;
+		if (addr == (unsigned long)-1)
+			break;
+		bfin_write32(ICPLB_ADDR0 + i * 4, addr);
+		bfin_write32(ICPLB_DATA0 + i * 4, data);
+	}
+	ctrl = bfin_read_IMEM_CONTROL();
+	ctrl |= IMC | ENICPLB;
+	bfin_write_IMEM_CONTROL(ctrl);
+}
+#endif
+
+#if defined(CONFIG_BFIN_DCACHE)
+void bfin_dcache_init(void)
+{
+	unsigned long *table = dcplb_table;
+	unsigned long ctrl;
+	int i;
+
+	for (i = 0; i < MAX_CPLBS; i++) {
+		unsigned long addr = *table++;
+		unsigned long data = *table++;
+		if (addr == (unsigned long)-1)
+			break;
+		bfin_write32(DCPLB_ADDR0 + i * 4, addr);
+		bfin_write32(DCPLB_DATA0 + i * 4, data);
+	}
+	ctrl = bfin_read_DMEM_CONTROL();
+	ctrl |= DMEM_CNTR;
+	bfin_write_DMEM_CONTROL(ctrl);
+}
+#endif
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbhdlr.S b/arch/blackfin/kernel/cplb-nompu/cplbhdlr.S
new file mode 100644
index 000000000000..2788532de72b
--- /dev/null
+++ b/arch/blackfin/kernel/cplb-nompu/cplbhdlr.S
@@ -0,0 +1,130 @@
+/*
+ * File:         arch/blackfin/mach-common/cplbhdlr.S
+ * Based on:
+ * Author:       LG Soft India
+ *
+ * Created:      ?
+ * Description:  CPLB exception handler
+ *
+ * Modified:
+ *               Copyright 2004-2006 Analog Devices Inc.
+ *
+ * Bugs:         Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/linkage.h>
+#include <asm/cplb.h>
+#include <asm/entry.h>
+
+#ifdef CONFIG_EXCPT_IRQ_SYSC_L1
+.section .l1.text
+#else
+.text
+#endif
+
+.type _cplb_mgr, STT_FUNC;
+.type _panic_cplb_error, STT_FUNC;
+
+.align 2
+
+ENTRY(__cplb_hdr)
+	R2 = SEQSTAT;
+
+	/* Mask the contents of SEQSTAT and leave only EXCAUSE in R2 */
+	R2 <<= 26;
+	R2 >>= 26;
+
+	R1 = 0x23; /* Data access CPLB protection violation */
+	CC = R2 == R1;
+	IF !CC JUMP .Lnot_data_write;
+	R0 = 2;		/* is a write to data space*/
+	JUMP .Lis_icplb_miss;
+
+.Lnot_data_write:
+	R1 = 0x2C; /* CPLB miss on an instruction fetch */
+	CC = R2 == R1;
+	R0 = 0;		/* is_data_miss == False*/
+	IF CC JUMP .Lis_icplb_miss;
+
+	R1 = 0x26;
+	CC = R2 == R1;
+	IF !CC JUMP .Lunknown;
+
+	R0 = 1;		/* is_data_miss == True*/
+
+.Lis_icplb_miss:
+
+#if defined(CONFIG_BFIN_ICACHE) || defined(CONFIG_BFIN_DCACHE)
+# if defined(CONFIG_BFIN_ICACHE) && !defined(CONFIG_BFIN_DCACHE)
+	R1 = CPLB_ENABLE_ICACHE;
+# endif
+# if !defined(CONFIG_BFIN_ICACHE) && defined(CONFIG_BFIN_DCACHE)
+	R1 = CPLB_ENABLE_DCACHE;
+# endif
+# if defined(CONFIG_BFIN_ICACHE) && defined(CONFIG_BFIN_DCACHE)
+	R1 = CPLB_ENABLE_DCACHE | CPLB_ENABLE_ICACHE;
+# endif
+#else
+	R1 = 0;
+#endif
+
+	[--SP] = RETS;
+	CALL _cplb_mgr;
+	RETS = [SP++];
+	CC = R0 == 0;
+	IF !CC JUMP .Lnot_replaced;
+	RTS;
+
+/*
+ * Diagnostic exception handlers
+ */
+.Lunknown:
+	R0 = CPLB_UNKNOWN_ERR;
+	JUMP .Lcplb_error;
+
+.Lnot_replaced:
+	CC = R0 == CPLB_NO_UNLOCKED;
+	IF !CC JUMP .Lnext_check;
+	R0 = CPLB_NO_UNLOCKED;
+	JUMP .Lcplb_error;
+
+.Lnext_check:
+	CC = R0 == CPLB_NO_ADDR_MATCH;
+	IF !CC JUMP .Lnext_check2;
+	R0 = CPLB_NO_ADDR_MATCH;
+	JUMP .Lcplb_error;
+
+.Lnext_check2:
+	CC = R0 == CPLB_PROT_VIOL;
+	IF !CC JUMP .Lstrange_return_from_cplb_mgr;
+	R0 = CPLB_PROT_VIOL;
+	JUMP .Lcplb_error;
+
+.Lstrange_return_from_cplb_mgr:
+	IDLE;
+	CSYNC;
+	JUMP .Lstrange_return_from_cplb_mgr;
+
+.Lcplb_error:
+	R1 = sp;
+	SP += -12;
+	call _panic_cplb_error;
+	SP += 12;
+	JUMP _handle_bad_cplb;
+
+ENDPROC(__cplb_hdr)
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinfo.c b/arch/blackfin/kernel/cplb-nompu/cplbinfo.c
new file mode 100644
index 000000000000..a4f0b428a34d
--- /dev/null
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinfo.c
@@ -0,0 +1,208 @@
+/*
+ * File:         arch/blackfin/mach-common/cplbinfo.c
+ * Based on:
+ * Author:       Sonic Zhang <sonic.zhang@analog.com>
+ *
+ * Created:      Jan. 2005
+ * Description:  Display CPLB status
+ *
+ * Modified:
+ *               Copyright 2004-2006 Analog Devices Inc.
+ *
+ * Bugs:         Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/uaccess.h>
+
+#include <asm/current.h>
+#include <asm/system.h>
+#include <asm/cplb.h>
+#include <asm/blackfin.h>
+
+#define CPLB_I 1
+#define CPLB_D 2
+
+#define SYNC_SYS    SSYNC()
+#define SYNC_CORE   CSYNC()
+
+#define CPLB_BIT_PAGESIZE 0x30000
+
+static int page_size_table[4] = {
+	0x00000400,		/* 1K */
+	0x00001000,		/* 4K */
+	0x00100000,		/* 1M */
+	0x00400000		/* 4M */
+};
+
+static char page_size_string_table[][4] = { "1K", "4K", "1M", "4M" };
+
+static int cplb_find_entry(unsigned long *cplb_addr,
+			   unsigned long *cplb_data, unsigned long addr,
+			   unsigned long data)
+{
+	int ii;
+
+	for (ii = 0; ii < 16; ii++)
+		if (addr >= cplb_addr[ii] && addr < cplb_addr[ii] +
+		    page_size_table[(cplb_data[ii] & CPLB_BIT_PAGESIZE) >> 16]
+			&& (cplb_data[ii] == data))
+			return ii;
+
+	return -1;
+}
+
+static char *cplb_print_entry(char *buf, int type)
+{
+	unsigned long *p_addr = dpdt_table;
+	unsigned long *p_data = dpdt_table + 1;
+	unsigned long *p_icount = dpdt_swapcount_table;
+	unsigned long *p_ocount = dpdt_swapcount_table + 1;
+	unsigned long *cplb_addr = (unsigned long *)DCPLB_ADDR0;
+	unsigned long *cplb_data = (unsigned long *)DCPLB_DATA0;
+	int entry = 0, used_cplb = 0;
+
+	if (type == CPLB_I) {
+		buf += sprintf(buf, "Instruction CPLB entry:\n");
+		p_addr = ipdt_table;
+		p_data = ipdt_table + 1;
+		p_icount = ipdt_swapcount_table;
+		p_ocount = ipdt_swapcount_table + 1;
+		cplb_addr = (unsigned long *)ICPLB_ADDR0;
+		cplb_data = (unsigned long *)ICPLB_DATA0;
+	} else
+		buf += sprintf(buf, "Data CPLB entry:\n");
+
+	buf += sprintf(buf, "Address\t\tData\tSize\tValid\tLocked\tSwapin\tiCount\toCount\n");
+
+	while (*p_addr != 0xffffffff) {
+		entry = cplb_find_entry(cplb_addr, cplb_data, *p_addr, *p_data);
+		if (entry >= 0)
+			used_cplb |= 1 << entry;
+
+		buf +=
+		    sprintf(buf,
+			    "0x%08lx\t0x%05lx\t%s\t%c\t%c\t%2d\t%ld\t%ld\n",
+			    *p_addr, *p_data,
+			    page_size_string_table[(*p_data & 0x30000) >> 16],
+			    (*p_data & CPLB_VALID) ? 'Y' : 'N',
+			    (*p_data & CPLB_LOCK) ? 'Y' : 'N', entry, *p_icount,
+			    *p_ocount);
+
+		p_addr += 2;
+		p_data += 2;
+		p_icount += 2;
+		p_ocount += 2;
+	}
+
+	if (used_cplb != 0xffff) {
+		buf += sprintf(buf, "Unused/mismatched CPLBs:\n");
+
+		for (entry = 0; entry < 16; entry++)
+			if (0 == ((1 << entry) & used_cplb)) {
+				int flags = cplb_data[entry];
+				buf +=
+				    sprintf(buf,
+					    "%2d: 0x%08lx\t0x%05x\t%s\t%c\t%c\n",
+					    entry, cplb_addr[entry], flags,
+					    page_size_string_table[(flags &
+								    0x30000) >>
+								   16],
+					    (flags & CPLB_VALID) ? 'Y' : 'N',
+					    (flags & CPLB_LOCK) ? 'Y' : 'N');
+			}
+	}
+
+	buf += sprintf(buf, "\n");
+
+	return buf;
+}
+
+static int cplbinfo_proc_output(char *buf)
+{
+	char *p;
+
+	p = buf;
+
+	p += sprintf(p, "------------------ CPLB Information ------------------\n\n");
+
+	if (bfin_read_IMEM_CONTROL() & ENICPLB)
+		p = cplb_print_entry(p, CPLB_I);
+	else
+		p += sprintf(p, "Instruction CPLB is disabled.\n\n");
+
+	if (bfin_read_DMEM_CONTROL() & ENDCPLB)
+		p = cplb_print_entry(p, CPLB_D);
+	else
+		p += sprintf(p, "Data CPLB is disabled.\n");
+
+	return p - buf;
+}
+
+static int cplbinfo_read_proc(char *page, char **start, off_t off,
+			      int count, int *eof, void *data)
+{
+	int len;
+
+	len = cplbinfo_proc_output(page);
+	if (len <= off + count)
+		*eof = 1;
+	*start = page + off;
+	len -= off;
+	if (len > count)
+		len = count;
+	if (len < 0)
+		len = 0;
+	return len;
+}
+
+static int cplbinfo_write_proc(struct file *file, const char __user *buffer,
+			       unsigned long count, void *data)
+{
+	printk(KERN_INFO "Reset the CPLB swap in/out counts.\n");
+	memset(ipdt_swapcount_table, 0, MAX_SWITCH_I_CPLBS * sizeof(unsigned long));
+	memset(dpdt_swapcount_table, 0, MAX_SWITCH_D_CPLBS * sizeof(unsigned long));
+
+	return count;
+}
+
+static int __init cplbinfo_init(void)
+{
+	struct proc_dir_entry *entry;
+
+	entry = create_proc_entry("cplbinfo", 0, NULL);
+	if (!entry)
+		return -ENOMEM;
+
+	entry->read_proc = cplbinfo_read_proc;
+	entry->write_proc = cplbinfo_write_proc;
+	entry->data = NULL;
+
+	return 0;
+}
+
+static void __exit cplbinfo_exit(void)
+{
+	remove_proc_entry("cplbinfo", NULL);
+}
+
+module_init(cplbinfo_init);
+module_exit(cplbinfo_exit);
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
new file mode 100644
index 000000000000..6320bc45fbba
--- /dev/null
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
@@ -0,0 +1,437 @@
+/*
+ * Blackfin CPLB initialization
+ *
+ *               Copyright 2004-2007 Analog Devices Inc.
+ *
+ * Bugs:         Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include <linux/module.h>
+
+#include <asm/blackfin.h>
+#include <asm/cplb.h>
+#include <asm/cplbinit.h>
+
+u_long icplb_table[MAX_CPLBS + 1];
+u_long dcplb_table[MAX_CPLBS + 1];
+
+#ifdef CONFIG_CPLB_SWITCH_TAB_L1
+# define PDT_ATTR __attribute__((l1_data))
+#else
+# define PDT_ATTR
+#endif
+
+u_long ipdt_table[MAX_SWITCH_I_CPLBS + 1] PDT_ATTR;
+u_long dpdt_table[MAX_SWITCH_D_CPLBS + 1] PDT_ATTR;
+
+#ifdef CONFIG_CPLB_INFO
+u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS] PDT_ATTR;
+u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS] PDT_ATTR;
+#endif
+
+struct s_cplb {
+	struct cplb_tab init_i;
+	struct cplb_tab init_d;
+	struct cplb_tab switch_i;
+	struct cplb_tab switch_d;
+};
+
+#if defined(CONFIG_BFIN_DCACHE) || defined(CONFIG_BFIN_ICACHE)
+static struct cplb_desc cplb_data[] = {
+	{
+		.start = 0,
+		.end = SIZE_1K,
+		.psize = SIZE_1K,
+		.attr = INITIAL_T | SWITCH_T | I_CPLB | D_CPLB,
+		.i_conf = SDRAM_OOPS,
+		.d_conf = SDRAM_OOPS,
+#if defined(CONFIG_DEBUG_HUNT_FOR_ZERO)
+		.valid = 1,
+#else
+		.valid = 0,
+#endif
+		.name = "Zero Pointer Guard Page",
+	},
+	{
+		.start = L1_CODE_START,
+		.end = L1_CODE_START + L1_CODE_LENGTH,
+		.psize = SIZE_4M,
+		.attr = INITIAL_T | SWITCH_T | I_CPLB,
+		.i_conf = L1_IMEMORY,
+		.d_conf = 0,
+		.valid = 1,
+		.name = "L1 I-Memory",
+	},
+	{
+		.start = L1_DATA_A_START,
+		.end = L1_DATA_B_START + L1_DATA_B_LENGTH,
+		.psize = SIZE_4M,
+		.attr = INITIAL_T | SWITCH_T | D_CPLB,
+		.i_conf = 0,
+		.d_conf = L1_DMEMORY,
+#if ((L1_DATA_A_LENGTH > 0) || (L1_DATA_B_LENGTH > 0))
+		.valid = 1,
+#else
+		.valid = 0,
+#endif
+		.name = "L1 D-Memory",
+	},
+	{
+		.start = 0,
+		.end = 0,  /* dynamic */
+		.psize = 0,
+		.attr = INITIAL_T | SWITCH_T | I_CPLB | D_CPLB,
+		.i_conf = SDRAM_IGENERIC,
+		.d_conf = SDRAM_DGENERIC,
+		.valid = 1,
+		.name = "Kernel Memory",
+	},
+	{
+		.start = 0, /* dynamic */
+		.end = 0, /* dynamic */
+		.psize = 0,
+		.attr = INITIAL_T | SWITCH_T | D_CPLB,
+		.i_conf = SDRAM_IGENERIC,
+		.d_conf = SDRAM_DNON_CHBL,
+		.valid = 1,
+		.name = "uClinux MTD Memory",
+	},
+	{
+		.start = 0, /* dynamic */
+		.end = 0,   /* dynamic */
+		.psize = SIZE_1M,
+		.attr = INITIAL_T | SWITCH_T | D_CPLB,
+		.d_conf = SDRAM_DNON_CHBL,
+		.valid = 1,
+		.name = "Uncached DMA Zone",
+	},
+	{
+		.start = 0, /* dynamic */
+		.end = 0, /* dynamic */
+		.psize = 0,
+		.attr = SWITCH_T | D_CPLB,
+		.i_conf = 0, /* dynamic */
+		.d_conf = 0, /* dynamic */
+		.valid = 1,
+		.name = "Reserved Memory",
+	},
+	{
+		.start = ASYNC_BANK0_BASE,
+		.end = ASYNC_BANK3_BASE + ASYNC_BANK3_SIZE,
+		.psize = 0,
+		.attr = SWITCH_T | D_CPLB,
+		.d_conf = SDRAM_EBIU,
+		.valid = 1,
+		.name = "Asynchronous Memory Banks",
+	},
+	{
+#ifdef L2_START
+		.start = L2_START,
+		.end = L2_START + L2_LENGTH,
+		.psize = SIZE_1M,
+		.attr = SWITCH_T | I_CPLB | D_CPLB,
+		.i_conf = L2_MEMORY,
+		.d_conf = L2_MEMORY,
+		.valid = 1,
+#else
+		.valid = 0,
+#endif
+		.name = "L2 Memory",
+	},
+	{
+		.start = BOOT_ROM_START,
+		.end = BOOT_ROM_START + BOOT_ROM_LENGTH,
+		.psize = SIZE_1M,
+		.attr = SWITCH_T | I_CPLB | D_CPLB,
+		.i_conf = SDRAM_IGENERIC,
+		.d_conf = SDRAM_DGENERIC,
+		.valid = 1,
+		.name = "On-Chip BootROM",
+	},
+};
+
+static u16 __init lock_kernel_check(u32 start, u32 end)
+{
+	if ((end   <= (u32) _end && end   >= (u32)_stext) ||
+	    (start <= (u32) _end && start >= (u32)_stext))
+		return IN_KERNEL;
+	return 0;
+}
+
+static unsigned short __init
+fill_cplbtab(struct cplb_tab *table,
+	     unsigned long start, unsigned long end,
+	     unsigned long block_size, unsigned long cplb_data)
+{
+	int i;
+
+	switch (block_size) {
+	case SIZE_4M:
+		i = 3;
+		break;
+	case SIZE_1M:
+		i = 2;
+		break;
+	case SIZE_4K:
+		i = 1;
+		break;
+	case SIZE_1K:
+	default:
+		i = 0;
+		break;
+	}
+
+	cplb_data = (cplb_data & ~(3 << 16)) | (i << 16);
+
+	while ((start < end) && (table->pos < table->size)) {
+
+		table->tab[table->pos++] = start;
+
+		if (lock_kernel_check(start, start + block_size) == IN_KERNEL)
+			table->tab[table->pos++] =
+			    cplb_data | CPLB_LOCK | CPLB_DIRTY;
+		else
+			table->tab[table->pos++] = cplb_data;
+
+		start += block_size;
+	}
+	return 0;
+}
+
+static unsigned short __init
+close_cplbtab(struct cplb_tab *table)
+{
+
+	while (table->pos < table->size) {
+
+		table->tab[table->pos++] = 0;
+		table->tab[table->pos++] = 0; /* !CPLB_VALID */
+	}
+	return 0;
+}
+
+/* helper function */
+static void __fill_code_cplbtab(struct cplb_tab *t, int i, u32 a_start, u32 a_end)
+{
+	if (cplb_data[i].psize) {
+		fill_cplbtab(t,
+				cplb_data[i].start,
+				cplb_data[i].end,
+				cplb_data[i].psize,
+				cplb_data[i].i_conf);
+	} else {
+#if defined(CONFIG_BFIN_ICACHE)
+		if (ANOMALY_05000263 && i == SDRAM_KERN) {
+			fill_cplbtab(t,
+					cplb_data[i].start,
+					cplb_data[i].end,
+					SIZE_4M,
+					cplb_data[i].i_conf);
+		} else
+#endif
+		{
+			fill_cplbtab(t,
+					cplb_data[i].start,
+					a_start,
+					SIZE_1M,
+					cplb_data[i].i_conf);
+			fill_cplbtab(t,
+					a_start,
+					a_end,
+					SIZE_4M,
+					cplb_data[i].i_conf);
+			fill_cplbtab(t, a_end,
+					cplb_data[i].end,
+					SIZE_1M,
+					cplb_data[i].i_conf);
+		}
+	}
+}
+
+static void __fill_data_cplbtab(struct cplb_tab *t, int i, u32 a_start, u32 a_end)
+{
+	if (cplb_data[i].psize) {
+		fill_cplbtab(t,
+				cplb_data[i].start,
+				cplb_data[i].end,
+				cplb_data[i].psize,
+				cplb_data[i].d_conf);
+	} else {
+		fill_cplbtab(t,
+				cplb_data[i].start,
+				a_start, SIZE_1M,
+				cplb_data[i].d_conf);
+		fill_cplbtab(t, a_start,
+				a_end, SIZE_4M,
+				cplb_data[i].d_conf);
+		fill_cplbtab(t, a_end,
+				cplb_data[i].end,
+				SIZE_1M,
+				cplb_data[i].d_conf);
+	}
+}
+
+void __init generate_cpl_tables(void)
+{
+
+	u16 i, j, process;
+	u32 a_start, a_end, as, ae, as_1m;
+
+	struct cplb_tab *t_i = NULL;
+	struct cplb_tab *t_d = NULL;
+	struct s_cplb cplb;
+
+	cplb.init_i.size = MAX_CPLBS;
+	cplb.init_d.size = MAX_CPLBS;
+	cplb.switch_i.size = MAX_SWITCH_I_CPLBS;
+	cplb.switch_d.size = MAX_SWITCH_D_CPLBS;
+
+	cplb.init_i.pos = 0;
+	cplb.init_d.pos = 0;
+	cplb.switch_i.pos = 0;
+	cplb.switch_d.pos = 0;
+
+	cplb.init_i.tab = icplb_table;
+	cplb.init_d.tab = dcplb_table;
+	cplb.switch_i.tab = ipdt_table;
+	cplb.switch_d.tab = dpdt_table;
+
+	cplb_data[SDRAM_KERN].end = memory_end;
+
+#ifdef CONFIG_MTD_UCLINUX
+	cplb_data[SDRAM_RAM_MTD].start = memory_mtd_start;
+	cplb_data[SDRAM_RAM_MTD].end = memory_mtd_start + mtd_size;
+	cplb_data[SDRAM_RAM_MTD].valid = mtd_size > 0;
+# if defined(CONFIG_ROMFS_FS)
+	cplb_data[SDRAM_RAM_MTD].attr |= I_CPLB;
+
+	/*
+	 * The ROMFS_FS size is often not multiple of 1MB.
+	 * This can cause multiple CPLB sets covering the same memory area.
+	 * This will then cause multiple CPLB hit exceptions.
+	 * Workaround: We ensure a contiguous memory area by extending the kernel
+	 * memory section over the mtd section.
+	 * For ROMFS_FS memory must be covered with ICPLBs anyways.
+	 * So there is no difference between kernel and mtd memory setup.
+	 */
+
+	cplb_data[SDRAM_KERN].end = memory_mtd_start + mtd_size;;
+	cplb_data[SDRAM_RAM_MTD].valid = 0;
+
+# endif
+#else
+	cplb_data[SDRAM_RAM_MTD].valid = 0;
+#endif
+
+	cplb_data[SDRAM_DMAZ].start = _ramend - DMA_UNCACHED_REGION;
+	cplb_data[SDRAM_DMAZ].end = _ramend;
+
+	cplb_data[RES_MEM].start = _ramend;
+	cplb_data[RES_MEM].end = physical_mem_end;
+
+	if (reserved_mem_dcache_on)
+		cplb_data[RES_MEM].d_conf = SDRAM_DGENERIC;
+	else
+		cplb_data[RES_MEM].d_conf = SDRAM_DNON_CHBL;
+
+	if (reserved_mem_icache_on)
+		cplb_data[RES_MEM].i_conf = SDRAM_IGENERIC;
+	else
+		cplb_data[RES_MEM].i_conf = SDRAM_INON_CHBL;
+
+	for (i = ZERO_P; i < ARRAY_SIZE(cplb_data); ++i) {
+		if (!cplb_data[i].valid)
+			continue;
+
+		as_1m = cplb_data[i].start % SIZE_1M;
+
+		/* We need to make sure all sections are properly 1M aligned
+		 * However between Kernel Memory and the Kernel mtd section, depending on the
+		 * rootfs size, there can be overlapping memory areas.
+		 */
+
+		if (as_1m && i != L1I_MEM && i != L1D_MEM) {
+#ifdef CONFIG_MTD_UCLINUX
+			if (i == SDRAM_RAM_MTD) {
+				if ((cplb_data[SDRAM_KERN].end + 1) > cplb_data[SDRAM_RAM_MTD].start)
+					cplb_data[SDRAM_RAM_MTD].start = (cplb_data[i].start & (-2*SIZE_1M)) + SIZE_1M;
+				else
+					cplb_data[SDRAM_RAM_MTD].start = (cplb_data[i].start & (-2*SIZE_1M));
+			} else
+#endif
+				printk(KERN_WARNING "Unaligned Start of %s at 0x%X\n",
+				       cplb_data[i].name, cplb_data[i].start);
+		}
+
+		as = cplb_data[i].start % SIZE_4M;
+		ae = cplb_data[i].end % SIZE_4M;
+
+		if (as)
+			a_start = cplb_data[i].start + (SIZE_4M - (as));
+		else
+			a_start = cplb_data[i].start;
+
+		a_end = cplb_data[i].end - ae;
+
+		for (j = INITIAL_T; j <= SWITCH_T; j++) {
+
+			switch (j) {
+			case INITIAL_T:
+				if (cplb_data[i].attr & INITIAL_T) {
+					t_i = &cplb.init_i;
+					t_d = &cplb.init_d;
+					process = 1;
+				} else
+					process = 0;
+				break;
+			case SWITCH_T:
+				if (cplb_data[i].attr & SWITCH_T) {
+					t_i = &cplb.switch_i;
+					t_d = &cplb.switch_d;
+					process = 1;
+				} else
+					process = 0;
+				break;
+			default:
+					process = 0;
+				break;
+			}
+
+			if (!process)
+				continue;
+			if (cplb_data[i].attr & I_CPLB)
+				__fill_code_cplbtab(t_i, i, a_start, a_end);
+
+			if (cplb_data[i].attr & D_CPLB)
+				__fill_data_cplbtab(t_d, i, a_start, a_end);
+		}
+	}
+
+/* close tables */
+
+	close_cplbtab(&cplb.init_i);
+	close_cplbtab(&cplb.init_d);
+
+	cplb.init_i.tab[cplb.init_i.pos] = -1;
+	cplb.init_d.tab[cplb.init_d.pos] = -1;
+	cplb.switch_i.tab[cplb.switch_i.pos] = -1;
+	cplb.switch_d.tab[cplb.switch_d.pos] = -1;
+
+}
+
+#endif
+
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbmgr.S b/arch/blackfin/kernel/cplb-nompu/cplbmgr.S
new file mode 100644
index 000000000000..f5cf3accef37
--- /dev/null
+++ b/arch/blackfin/kernel/cplb-nompu/cplbmgr.S
@@ -0,0 +1,646 @@
+/*
+ * File:         arch/blackfin/mach-common/cplbmgtr.S
+ * Based on:
+ * Author:       LG Soft India
+ *
+ * Created:      ?
+ * Description:  CPLB replacement routine for CPLB mismatch
+ *
+ * Modified:
+ *               Copyright 2004-2006 Analog Devices Inc.
+ *
+ * Bugs:         Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+/* Usage: int _cplb_mgr(is_data_miss,int enable_cache)
+ * is_data_miss==2 => Mark as Dirty, write to the clean data page
+ * is_data_miss==1 => Replace a data CPLB.
+ * is_data_miss==0 => Replace an instruction CPLB.
+ *
+ * Returns:
+ * CPLB_RELOADED	=> Successfully updated CPLB table.
+ * CPLB_NO_UNLOCKED	=> All CPLBs are locked, so cannot be evicted.
+ *			   This indicates that the CPLBs in the configuration
+ *			   tablei are badly configured, as this should never
+ *			   occur.
+ * CPLB_NO_ADDR_MATCH	=> The address being accessed, that triggered the
+ *			   exception, is not covered by any of the CPLBs in
+ *			   the configuration table. The application is
+ *			   presumably misbehaving.
+ * CPLB_PROT_VIOL	=> The address being accessed, that triggered the
+ *			   exception, was not a first-write to a clean Write
+ *			   Back Data page, and so presumably is a genuine
+ *			   violation of the page's protection attributes.
+ *			   The application is misbehaving.
+ */
+
+#include <linux/linkage.h>
+#include <asm/blackfin.h>
+#include <asm/cplb.h>
+
+#ifdef CONFIG_EXCPT_IRQ_SYSC_L1
+.section .l1.text
+#else
+.text
+#endif
+
+.align 2;
+ENTRY(_cplb_mgr)
+
+	[--SP]=( R7:4,P5:3 );
+
+	CC = R0 == 2;
+	IF CC JUMP .Ldcplb_write;
+
+	CC = R0 == 0;
+	IF !CC JUMP .Ldcplb_miss_compare;
+
+	/* ICPLB Miss Exception. We need to choose one of the
+	* currently-installed CPLBs, and replace it with one
+	* from the configuration table.
+	*/
+
+	/* A multi-word instruction can cross a page boundary. This means the
+	 * first part of the instruction can be in a valid page, but the
+	 * second part is not, and hence generates the instruction miss.
+	 * However, the fault address is for the start of the instruction,
+	 * not the part that's in the bad page. Therefore, we have to check
+	 * whether the fault address applies to a page that is already present
+	 * in the table.
+	 */
+
+	P4.L = LO(ICPLB_FAULT_ADDR);
+	P4.H = HI(ICPLB_FAULT_ADDR);
+
+	P1 = 16;
+	P5.L = _page_size_table;
+	P5.H = _page_size_table;
+
+	P0.L = LO(ICPLB_DATA0);
+	P0.H = HI(ICPLB_DATA0);
+	R4 = [P4];		/* Get faulting address*/
+	R6 = 64;		/* Advance past the fault address, which*/
+	R6 = R6 + R4;		/* we'll use if we find a match*/
+	R3 = ((16 << 8) | 2);	/* Extract mask, two bits at posn 16 */
+
+	R5 = 0;
+.Lisearch:
+
+	R1 = [P0-0x100];	/* Address for this CPLB */
+
+	R0 = [P0++];		/* Info for this CPLB*/
+	CC = BITTST(R0,0);	/* Is the CPLB valid?*/
+	IF !CC JUMP .Lnomatch;	/* Skip it, if not.*/
+	CC = R4 < R1(IU);	/* If fault address less than page start*/
+	IF CC JUMP .Lnomatch;	/* then skip this one.*/
+	R2 = EXTRACT(R0,R3.L) (Z);	/* Get page size*/
+	P1 = R2;
+	P1 = P5 + (P1<<2);	/* index into page-size table*/
+	R2 = [P1];		/* Get the page size*/
+	R1 = R1 + R2;		/* and add to page start, to get page end*/
+	CC = R4 < R1(IU);	/* and see whether fault addr is in page.*/
+	IF !CC R4 = R6;		/* If so, advance the address and finish loop.*/
+	IF !CC JUMP .Lisearch_done;
+.Lnomatch:
+	/* Go around again*/
+	R5 += 1;
+	CC = BITTST(R5, 4);	/* i.e CC = R5 >= 16*/
+	IF !CC JUMP .Lisearch;
+
+.Lisearch_done:
+	I0 = R4;		/* Fault address we'll search for*/
+
+	/* set up pointers */
+	P0.L = LO(ICPLB_DATA0);
+	P0.H = HI(ICPLB_DATA0);
+
+	/* The replacement procedure for ICPLBs */
+
+	P4.L = LO(IMEM_CONTROL);
+	P4.H = HI(IMEM_CONTROL);
+
+	/* Turn off CPLBs while we work, necessary according to HRM before
+	 * modifying CPLB descriptors
+	 */
+	R5 = [P4];		/* Control Register*/
+	BITCLR(R5,ENICPLB_P);
+	CLI R1;
+	SSYNC;		/* SSYNC required before writing to IMEM_CONTROL. */
+	.align 8;
+	[P4] = R5;
+	SSYNC;
+	STI R1;
+
+	R1 = -1;		/* end point comparison */
+	R3 = 16;		/* counter */
+
+	/* Search through CPLBs for first non-locked entry */
+	/* Overwrite it by moving everyone else up by 1 */
+.Licheck_lock:
+	R0 = [P0++];
+	R3 = R3 + R1;
+	CC = R3 == R1;
+	IF CC JUMP .Lall_locked;
+	CC = BITTST(R0, 0);		/* an invalid entry is good */
+	IF !CC JUMP .Lifound_victim;
+	CC = BITTST(R0,1);		/* but a locked entry isn't */
+	IF CC JUMP .Licheck_lock;
+
+.Lifound_victim:
+#ifdef CONFIG_CPLB_INFO
+	R7 = [P0 - 0x104];
+	P2.L = _ipdt_table;
+	P2.H = _ipdt_table;
+	P3.L = _ipdt_swapcount_table;
+	P3.H = _ipdt_swapcount_table;
+	P3 += -4;
+.Licount:
+	R2 = [P2];	/* address from config table */
+	P2 += 8;
+	P3 += 8;
+	CC = R2==-1;
+	IF CC JUMP .Licount_done;
+	CC = R7==R2;
+	IF !CC JUMP .Licount;
+	R7 = [P3];
+	R7 += 1;
+	[P3] = R7;
+	CSYNC;
+.Licount_done:
+#endif
+	LC0=R3;
+	LSETUP(.Lis_move,.Lie_move) LC0;
+.Lis_move:
+	R0 = [P0];
+	[P0 - 4] = R0;
+	R0 = [P0 - 0x100];
+	[P0-0x104] = R0;
+.Lie_move:
+	P0+=4;
+
+	/* Clear ICPLB_DATA15, in case we don't find a replacement
+	 * otherwise, we would have a duplicate entry, and will crash
+	 */
+	R0 = 0;
+	[P0 - 4] = R0;
+
+	/* We've made space in the ICPLB table, so that ICPLB15
+	 * is now free to be overwritten. Next, we have to determine
+	 * which CPLB we need to install, from the configuration
+	 * table. This is a matter of getting the start-of-page
+	 * addresses and page-lengths from the config table, and
+	 * determining whether the fault address falls within that
+	 * range.
+ 	 */
+
+	P2.L = _ipdt_table;
+	P2.H = _ipdt_table;
+#ifdef	CONFIG_CPLB_INFO
+	P3.L = _ipdt_swapcount_table;
+	P3.H = _ipdt_swapcount_table;
+	P3 += -8;
+#endif
+	P0.L = _page_size_table;
+	P0.H = _page_size_table;
+
+	/* Retrieve our fault address (which may have been advanced
+	 * because the faulting instruction crossed a page boundary).
+	 */
+
+	R0 = I0;
+
+	/* An extraction pattern, to get the page-size bits from
+	 * the CPLB data entry. Bits 16-17, so two bits at posn 16.
+	 */
+
+	R1 = ((16<<8)|2);
+.Linext:	R4 = [P2++];	/* address from config table */
+	R2 = [P2++];	/* data from config table */
+#ifdef	CONFIG_CPLB_INFO
+	P3 += 8;
+#endif
+
+	CC = R4 == -1;	/* End of config table*/
+	IF CC JUMP .Lno_page_in_table;
+
+	/* See if failed address > start address */
+	CC = R4 <= R0(IU);
+	IF !CC JUMP .Linext;
+
+	/* extract page size (17:16)*/
+	R3 = EXTRACT(R2, R1.L) (Z);
+
+	/* add page size to addr to get range */
+
+	P5 = R3;
+	P5 = P0 + (P5 << 2);	/* scaled, for int access*/
+	R3 = [P5];
+	R3 = R3 + R4;
+
+	/* See if failed address < (start address + page size) */
+	CC = R0 < R3(IU);
+	IF !CC JUMP .Linext;
+
+	/* We've found a CPLB in the config table that covers
+	 * the faulting address, so install this CPLB into the
+	 * last entry of the table.
+	 */
+
+	P1.L = LO(ICPLB_DATA15);		/* ICPLB_DATA15 */
+	P1.H = HI(ICPLB_DATA15);
+	[P1] = R2;
+	[P1-0x100] = R4;
+#ifdef	CONFIG_CPLB_INFO
+	R3 = [P3];
+	R3 += 1;
+	[P3] = R3;
+#endif
+
+	/* P4 points to IMEM_CONTROL, and R5 contains its old
+	 * value, after we disabled ICPLBS. Re-enable them.
+	 */
+
+	BITSET(R5,ENICPLB_P);
+	CLI R2;
+	SSYNC;		/* SSYNC required before writing to IMEM_CONTROL. */
+	.align 8;
+	[P4] = R5;
+	SSYNC;
+	STI R2;
+
+	( R7:4,P5:3 ) = [SP++];
+	R0 = CPLB_RELOADED;
+	RTS;
+
+/* FAILED CASES*/
+.Lno_page_in_table:
+	R0 = CPLB_NO_ADDR_MATCH;
+	JUMP .Lfail_ret;
+
+.Lall_locked:
+	R0 = CPLB_NO_UNLOCKED;
+	JUMP .Lfail_ret;
+
+.Lprot_violation:
+	R0 = CPLB_PROT_VIOL;
+
+.Lfail_ret:
+	/* Make sure we turn protection/cache back on, even in the failing case */
+	BITSET(R5,ENICPLB_P);
+	CLI R2;
+	SSYNC;          /* SSYNC required before writing to IMEM_CONTROL. */
+	.align 8;
+	[P4] = R5;
+	SSYNC;
+	STI R2;
+
+	( R7:4,P5:3 ) = [SP++];
+	RTS;
+
+.Ldcplb_write:
+
+	/* if a DCPLB is marked as write-back (CPLB_WT==0), and
+	 * it is clean (CPLB_DIRTY==0), then a write to the
+	 * CPLB's page triggers a protection violation. We have to
+	 * mark the CPLB as dirty, to indicate that there are
+	 * pending writes associated with the CPLB.
+	 */
+
+	P4.L = LO(DCPLB_STATUS);
+	P4.H = HI(DCPLB_STATUS);
+	P3.L = LO(DCPLB_DATA0);
+	P3.H = HI(DCPLB_DATA0);
+	R5 = [P4];
+
+	/* A protection violation can be caused by more than just writes
+	 * to a clean WB page, so we have to ensure that:
+	 * - It's a write
+	 * - to a clean WB page
+	 * - and is allowed in the mode the access occurred.
+	 */
+
+	CC = BITTST(R5, 16);	/* ensure it was a write*/
+	IF !CC JUMP .Lprot_violation;
+
+	/* to check the rest, we have to retrieve the DCPLB.*/
+
+	/* The low half of DCPLB_STATUS is a bit mask*/
+
+	R2 = R5.L (Z);	/* indicating which CPLB triggered the event.*/
+	R3 = 30;	/* so we can use this to determine the offset*/
+	R2.L = SIGNBITS R2;
+	R2 = R2.L (Z);	/* into the DCPLB table.*/
+	R3 = R3 - R2;
+	P4 = R3;
+	P3 = P3 + (P4<<2);
+	R3 = [P3];	/* Retrieve the CPLB*/
+
+	/* Now we can check whether it's a clean WB page*/
+
+	CC = BITTST(R3, 14);	/* 0==WB, 1==WT*/
+	IF CC JUMP .Lprot_violation;
+	CC = BITTST(R3, 7);	/* 0 == clean, 1 == dirty*/
+	IF CC JUMP .Lprot_violation;
+
+	/* Check whether the write is allowed in the mode that was active.*/
+
+	R2 = 1<<3;		/* checking write in user mode*/
+	CC = BITTST(R5, 17);	/* 0==was user, 1==was super*/
+	R5 = CC;
+	R2 <<= R5;		/* if was super, check write in super mode*/
+	R2 = R3 & R2;
+	CC = R2 == 0;
+	IF CC JUMP .Lprot_violation;
+
+	/* It's a genuine write-to-clean-page.*/
+
+	BITSET(R3, 7);		/* mark as dirty*/
+	[P3] = R3;		/* and write back.*/
+	NOP;
+	CSYNC;
+	( R7:4,P5:3 ) = [SP++];
+	R0 = CPLB_RELOADED;
+	RTS;
+
+.Ldcplb_miss_compare:
+
+	/* Data CPLB Miss event. We need to choose a CPLB to
+	 * evict, and then locate a new CPLB to install from the
+	 * config table, that covers the faulting address.
+	 */
+
+	P1.L = LO(DCPLB_DATA15);
+	P1.H = HI(DCPLB_DATA15);
+
+	P4.L = LO(DCPLB_FAULT_ADDR);
+	P4.H = HI(DCPLB_FAULT_ADDR);
+	R4 = [P4];
+	I0 = R4;
+
+	/* The replacement procedure for DCPLBs*/
+
+	R6 = R1;	/* Save for later*/
+
+	/* Turn off CPLBs while we work.*/
+	P4.L = LO(DMEM_CONTROL);
+	P4.H = HI(DMEM_CONTROL);
+	R5 = [P4];
+	BITCLR(R5,ENDCPLB_P);
+	CLI R0;
+	SSYNC;		/* SSYNC required before writing to DMEM_CONTROL. */
+	.align 8;
+	[P4] = R5;
+	SSYNC;
+	STI R0;
+
+	/* Start looking for a CPLB to evict. Our order of preference
+	 * is: invalid CPLBs, clean CPLBs, dirty CPLBs. Locked CPLBs
+	 * are no good.
+	 */
+
+	I1.L = LO(DCPLB_DATA0);
+	I1.H = HI(DCPLB_DATA0);
+	P1 = 2;
+	P2 = 16;
+	I2.L = _dcplb_preference;
+	I2.H = _dcplb_preference;
+	LSETUP(.Lsdsearch1, .Ledsearch1) LC0 = P1;
+.Lsdsearch1:
+	R0 = [I2++];		/* Get the bits we're interested in*/
+	P0 = I1;		/* Go back to start of table*/
+	LSETUP (.Lsdsearch2, .Ledsearch2) LC1 = P2;
+.Lsdsearch2:
+	R1 = [P0++];		/* Fetch each installed CPLB in turn*/
+	R2 = R1 & R0;		/* and test for interesting bits.*/
+	CC = R2 == 0;		/* If none are set, it'll do.*/
+	IF !CC JUMP .Lskip_stack_check;
+
+	R2 = [P0 - 0x104]; 	/* R2 - PageStart */
+	P3.L = _page_size_table; /* retrieve end address */
+	P3.H = _page_size_table; /* retrieve end address */
+	R3 = 0x1002;		/* 16th - position, 2 bits -length */
+#if ANOMALY_05000209
+	nop;			/* Anomaly 05000209 */
+#endif
+	R7 = EXTRACT(R1,R3.l);
+	R7 = R7 << 2;		/* Page size index offset */
+	P5 = R7;
+	P3 = P3 + P5;
+	R7 = [P3];		/* page size in bytes */
+
+	R7 = R2 + R7;		/* R7 - PageEnd */
+	R4 = SP; 		/* Test SP is in range */
+
+	CC = R7 < R4;		/* if PageEnd < SP */
+	IF CC JUMP .Ldfound_victim;
+	R3 = 0x284;		/* stack length from start of trap till
+				 * the point.
+				 * 20 stack locations for future modifications
+				 */
+	R4 = R4 + R3;
+	CC = R4 < R2;		/* if SP + stacklen < PageStart */
+	IF CC JUMP .Ldfound_victim;
+.Lskip_stack_check:
+
+.Ledsearch2: NOP;
+.Ledsearch1: NOP;
+
+	/* If we got here, we didn't find a DCPLB we considered
+	 * replacable, which means all of them were locked.
+	 */
+
+	JUMP .Lall_locked;
+.Ldfound_victim:
+
+#ifdef CONFIG_CPLB_INFO
+	R7 = [P0 - 0x104];
+	P2.L = _dpdt_table;
+	P2.H = _dpdt_table;
+	P3.L = _dpdt_swapcount_table;
+	P3.H = _dpdt_swapcount_table;
+	P3 += -4;
+.Ldicount:
+	R2 = [P2];
+	P2 += 8;
+	P3 += 8;
+	CC = R2==-1;
+	IF CC JUMP .Ldicount_done;
+	CC = R7==R2;
+	IF !CC JUMP .Ldicount;
+	R7 = [P3];
+	R7 += 1;
+	[P3] = R7;
+.Ldicount_done:
+#endif
+
+	/* Clean down the hardware loops*/
+	R2 = 0;
+	LC1 = R2;
+	LC0 = R2;
+
+	/* There's a suitable victim in [P0-4] (because we've
+	 * advanced already).
+	 */
+
+.LDdoverwrite:
+
+	/* [P0-4] is a suitable victim CPLB, so we want to
+	 * overwrite it by moving all the following CPLBs
+	 * one space closer to the start.
+	 */
+
+	R1.L = LO(DCPLB_DATA16);		/* DCPLB_DATA15 + 4 */
+	R1.H = HI(DCPLB_DATA16);
+	R0 = P0;
+
+	/* If the victim happens to be in DCPLB15,
+	 * we don't need to move anything.
+	 */
+
+	CC = R1 == R0;
+	IF CC JUMP .Lde_moved;
+	R1 = R1 - R0;
+	R1 >>= 2;
+	P1 = R1;
+	LSETUP(.Lds_move, .Lde_move) LC0=P1;
+.Lds_move:
+	R0 = [P0++];	/* move data */
+	[P0 - 8] = R0;
+	R0 = [P0-0x104]	/* move address */
+.Lde_move:
+	 [P0-0x108] = R0;
+
+.Lde_moved:
+	NOP;
+
+	/* Clear DCPLB_DATA15, in case we don't find a replacement
+	 * otherwise, we would have a duplicate entry, and will crash
+	 */
+	R0 = 0;
+	[P0 - 0x4] = R0;
+
+	/* We've now made space in DCPLB15 for the new CPLB to be
+	 * installed. The next stage is to locate a CPLB in the
+	 * config table that covers the faulting address.
+	 */
+
+	R0 = I0;		/* Our faulting address */
+
+	P2.L = _dpdt_table;
+	P2.H = _dpdt_table;
+#ifdef	CONFIG_CPLB_INFO
+	P3.L = _dpdt_swapcount_table;
+	P3.H = _dpdt_swapcount_table;
+	P3 += -8;
+#endif
+
+	P1.L = _page_size_table;
+	P1.H = _page_size_table;
+
+	/* An extraction pattern, to retrieve bits 17:16.*/
+
+	R1 = (16<<8)|2;
+.Ldnext:	R4 = [P2++];	/* address */
+	R2 = [P2++];	/* data */
+#ifdef	CONFIG_CPLB_INFO
+	P3 += 8;
+#endif
+
+	CC = R4 == -1;
+	IF CC JUMP .Lno_page_in_table;
+
+	/* See if failed address > start address */
+	CC = R4 <= R0(IU);
+	IF !CC JUMP .Ldnext;
+
+	/* extract page size (17:16)*/
+	R3 = EXTRACT(R2, R1.L) (Z);
+
+	/* add page size to addr to get range */
+
+	P5 = R3;
+	P5 = P1 + (P5 << 2);
+	R3 = [P5];
+	R3 = R3 + R4;
+
+	/* See if failed address < (start address + page size) */
+	CC = R0 < R3(IU);
+	IF !CC JUMP .Ldnext;
+
+	/* We've found the CPLB that should be installed, so
+	 * write it into CPLB15, masking off any caching bits
+	 * if necessary.
+	 */
+
+	P1.L = LO(DCPLB_DATA15);
+	P1.H = HI(DCPLB_DATA15);
+
+	/* If the DCPLB has cache bits set, but caching hasn't
+	 * been enabled, then we want to mask off the cache-in-L1
+	 * bit before installing. Moreover, if caching is off, we
+	 * also want to ensure that the DCPLB has WT mode set, rather
+	 * than WB, since WB pages still trigger first-write exceptions
+	 * even when not caching is off, and the page isn't marked as
+	 * cachable. Finally, we could mark the page as clean, not dirty,
+	 * but we choose to leave that decision to the user; if the user
+	 * chooses to have a CPLB pre-defined as dirty, then they always
+	 * pay the cost of flushing during eviction, but don't pay the
+	 * cost of first-write exceptions to mark the page as dirty.
+	 */
+
+#ifdef CONFIG_BFIN_WT
+	BITSET(R6, 14);		/* Set WT*/
+#endif
+
+	[P1] = R2;
+	[P1-0x100] = R4;
+#ifdef	CONFIG_CPLB_INFO
+	R3 = [P3];
+	R3 += 1;
+	[P3] = R3;
+#endif
+
+	/* We've installed the CPLB, so re-enable CPLBs. P4
+	 * points to DMEM_CONTROL, and R5 is the value we
+	 * last wrote to it, when we were disabling CPLBs.
+	 */
+
+	BITSET(R5,ENDCPLB_P);
+	CLI R2;
+	.align 8;
+	[P4] = R5;
+	SSYNC;
+	STI R2;
+
+	( R7:4,P5:3 ) = [SP++];
+	R0 = CPLB_RELOADED;
+	RTS;
+ENDPROC(_cplb_mgr)
+
+.data
+.align 4;
+_page_size_table:
+.byte4	0x00000400;	/* 1K */
+.byte4	0x00001000;	/* 4K */
+.byte4	0x00100000;	/* 1M */
+.byte4	0x00400000;	/* 4M */
+
+.align 4;
+_dcplb_preference:
+.byte4	0x00000001;	/* valid bit */
+.byte4	0x00000002;	/* lock bit */
diff --git a/arch/blackfin/kernel/cplbinit.c b/arch/blackfin/kernel/cplbinit.c
deleted file mode 100644
index 6320bc45fbba..000000000000
--- a/arch/blackfin/kernel/cplbinit.c
+++ /dev/null
@@ -1,437 +0,0 @@
-/*
- * Blackfin CPLB initialization
- *
- *               Copyright 2004-2007 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#include <linux/module.h>
-
-#include <asm/blackfin.h>
-#include <asm/cplb.h>
-#include <asm/cplbinit.h>
-
-u_long icplb_table[MAX_CPLBS + 1];
-u_long dcplb_table[MAX_CPLBS + 1];
-
-#ifdef CONFIG_CPLB_SWITCH_TAB_L1
-# define PDT_ATTR __attribute__((l1_data))
-#else
-# define PDT_ATTR
-#endif
-
-u_long ipdt_table[MAX_SWITCH_I_CPLBS + 1] PDT_ATTR;
-u_long dpdt_table[MAX_SWITCH_D_CPLBS + 1] PDT_ATTR;
-
-#ifdef CONFIG_CPLB_INFO
-u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS] PDT_ATTR;
-u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS] PDT_ATTR;
-#endif
-
-struct s_cplb {
-	struct cplb_tab init_i;
-	struct cplb_tab init_d;
-	struct cplb_tab switch_i;
-	struct cplb_tab switch_d;
-};
-
-#if defined(CONFIG_BFIN_DCACHE) || defined(CONFIG_BFIN_ICACHE)
-static struct cplb_desc cplb_data[] = {
-	{
-		.start = 0,
-		.end = SIZE_1K,
-		.psize = SIZE_1K,
-		.attr = INITIAL_T | SWITCH_T | I_CPLB | D_CPLB,
-		.i_conf = SDRAM_OOPS,
-		.d_conf = SDRAM_OOPS,
-#if defined(CONFIG_DEBUG_HUNT_FOR_ZERO)
-		.valid = 1,
-#else
-		.valid = 0,
-#endif
-		.name = "Zero Pointer Guard Page",
-	},
-	{
-		.start = L1_CODE_START,
-		.end = L1_CODE_START + L1_CODE_LENGTH,
-		.psize = SIZE_4M,
-		.attr = INITIAL_T | SWITCH_T | I_CPLB,
-		.i_conf = L1_IMEMORY,
-		.d_conf = 0,
-		.valid = 1,
-		.name = "L1 I-Memory",
-	},
-	{
-		.start = L1_DATA_A_START,
-		.end = L1_DATA_B_START + L1_DATA_B_LENGTH,
-		.psize = SIZE_4M,
-		.attr = INITIAL_T | SWITCH_T | D_CPLB,
-		.i_conf = 0,
-		.d_conf = L1_DMEMORY,
-#if ((L1_DATA_A_LENGTH > 0) || (L1_DATA_B_LENGTH > 0))
-		.valid = 1,
-#else
-		.valid = 0,
-#endif
-		.name = "L1 D-Memory",
-	},
-	{
-		.start = 0,
-		.end = 0,  /* dynamic */
-		.psize = 0,
-		.attr = INITIAL_T | SWITCH_T | I_CPLB | D_CPLB,
-		.i_conf = SDRAM_IGENERIC,
-		.d_conf = SDRAM_DGENERIC,
-		.valid = 1,
-		.name = "Kernel Memory",
-	},
-	{
-		.start = 0, /* dynamic */
-		.end = 0, /* dynamic */
-		.psize = 0,
-		.attr = INITIAL_T | SWITCH_T | D_CPLB,
-		.i_conf = SDRAM_IGENERIC,
-		.d_conf = SDRAM_DNON_CHBL,
-		.valid = 1,
-		.name = "uClinux MTD Memory",
-	},
-	{
-		.start = 0, /* dynamic */
-		.end = 0,   /* dynamic */
-		.psize = SIZE_1M,
-		.attr = INITIAL_T | SWITCH_T | D_CPLB,
-		.d_conf = SDRAM_DNON_CHBL,
-		.valid = 1,
-		.name = "Uncached DMA Zone",
-	},
-	{
-		.start = 0, /* dynamic */
-		.end = 0, /* dynamic */
-		.psize = 0,
-		.attr = SWITCH_T | D_CPLB,
-		.i_conf = 0, /* dynamic */
-		.d_conf = 0, /* dynamic */
-		.valid = 1,
-		.name = "Reserved Memory",
-	},
-	{
-		.start = ASYNC_BANK0_BASE,
-		.end = ASYNC_BANK3_BASE + ASYNC_BANK3_SIZE,
-		.psize = 0,
-		.attr = SWITCH_T | D_CPLB,
-		.d_conf = SDRAM_EBIU,
-		.valid = 1,
-		.name = "Asynchronous Memory Banks",
-	},
-	{
-#ifdef L2_START
-		.start = L2_START,
-		.end = L2_START + L2_LENGTH,
-		.psize = SIZE_1M,
-		.attr = SWITCH_T | I_CPLB | D_CPLB,
-		.i_conf = L2_MEMORY,
-		.d_conf = L2_MEMORY,
-		.valid = 1,
-#else
-		.valid = 0,
-#endif
-		.name = "L2 Memory",
-	},
-	{
-		.start = BOOT_ROM_START,
-		.end = BOOT_ROM_START + BOOT_ROM_LENGTH,
-		.psize = SIZE_1M,
-		.attr = SWITCH_T | I_CPLB | D_CPLB,
-		.i_conf = SDRAM_IGENERIC,
-		.d_conf = SDRAM_DGENERIC,
-		.valid = 1,
-		.name = "On-Chip BootROM",
-	},
-};
-
-static u16 __init lock_kernel_check(u32 start, u32 end)
-{
-	if ((end   <= (u32) _end && end   >= (u32)_stext) ||
-	    (start <= (u32) _end && start >= (u32)_stext))
-		return IN_KERNEL;
-	return 0;
-}
-
-static unsigned short __init
-fill_cplbtab(struct cplb_tab *table,
-	     unsigned long start, unsigned long end,
-	     unsigned long block_size, unsigned long cplb_data)
-{
-	int i;
-
-	switch (block_size) {
-	case SIZE_4M:
-		i = 3;
-		break;
-	case SIZE_1M:
-		i = 2;
-		break;
-	case SIZE_4K:
-		i = 1;
-		break;
-	case SIZE_1K:
-	default:
-		i = 0;
-		break;
-	}
-
-	cplb_data = (cplb_data & ~(3 << 16)) | (i << 16);
-
-	while ((start < end) && (table->pos < table->size)) {
-
-		table->tab[table->pos++] = start;
-
-		if (lock_kernel_check(start, start + block_size) == IN_KERNEL)
-			table->tab[table->pos++] =
-			    cplb_data | CPLB_LOCK | CPLB_DIRTY;
-		else
-			table->tab[table->pos++] = cplb_data;
-
-		start += block_size;
-	}
-	return 0;
-}
-
-static unsigned short __init
-close_cplbtab(struct cplb_tab *table)
-{
-
-	while (table->pos < table->size) {
-
-		table->tab[table->pos++] = 0;
-		table->tab[table->pos++] = 0; /* !CPLB_VALID */
-	}
-	return 0;
-}
-
-/* helper function */
-static void __fill_code_cplbtab(struct cplb_tab *t, int i, u32 a_start, u32 a_end)
-{
-	if (cplb_data[i].psize) {
-		fill_cplbtab(t,
-				cplb_data[i].start,
-				cplb_data[i].end,
-				cplb_data[i].psize,
-				cplb_data[i].i_conf);
-	} else {
-#if defined(CONFIG_BFIN_ICACHE)
-		if (ANOMALY_05000263 && i == SDRAM_KERN) {
-			fill_cplbtab(t,
-					cplb_data[i].start,
-					cplb_data[i].end,
-					SIZE_4M,
-					cplb_data[i].i_conf);
-		} else
-#endif
-		{
-			fill_cplbtab(t,
-					cplb_data[i].start,
-					a_start,
-					SIZE_1M,
-					cplb_data[i].i_conf);
-			fill_cplbtab(t,
-					a_start,
-					a_end,
-					SIZE_4M,
-					cplb_data[i].i_conf);
-			fill_cplbtab(t, a_end,
-					cplb_data[i].end,
-					SIZE_1M,
-					cplb_data[i].i_conf);
-		}
-	}
-}
-
-static void __fill_data_cplbtab(struct cplb_tab *t, int i, u32 a_start, u32 a_end)
-{
-	if (cplb_data[i].psize) {
-		fill_cplbtab(t,
-				cplb_data[i].start,
-				cplb_data[i].end,
-				cplb_data[i].psize,
-				cplb_data[i].d_conf);
-	} else {
-		fill_cplbtab(t,
-				cplb_data[i].start,
-				a_start, SIZE_1M,
-				cplb_data[i].d_conf);
-		fill_cplbtab(t, a_start,
-				a_end, SIZE_4M,
-				cplb_data[i].d_conf);
-		fill_cplbtab(t, a_end,
-				cplb_data[i].end,
-				SIZE_1M,
-				cplb_data[i].d_conf);
-	}
-}
-
-void __init generate_cpl_tables(void)
-{
-
-	u16 i, j, process;
-	u32 a_start, a_end, as, ae, as_1m;
-
-	struct cplb_tab *t_i = NULL;
-	struct cplb_tab *t_d = NULL;
-	struct s_cplb cplb;
-
-	cplb.init_i.size = MAX_CPLBS;
-	cplb.init_d.size = MAX_CPLBS;
-	cplb.switch_i.size = MAX_SWITCH_I_CPLBS;
-	cplb.switch_d.size = MAX_SWITCH_D_CPLBS;
-
-	cplb.init_i.pos = 0;
-	cplb.init_d.pos = 0;
-	cplb.switch_i.pos = 0;
-	cplb.switch_d.pos = 0;
-
-	cplb.init_i.tab = icplb_table;
-	cplb.init_d.tab = dcplb_table;
-	cplb.switch_i.tab = ipdt_table;
-	cplb.switch_d.tab = dpdt_table;
-
-	cplb_data[SDRAM_KERN].end = memory_end;
-
-#ifdef CONFIG_MTD_UCLINUX
-	cplb_data[SDRAM_RAM_MTD].start = memory_mtd_start;
-	cplb_data[SDRAM_RAM_MTD].end = memory_mtd_start + mtd_size;
-	cplb_data[SDRAM_RAM_MTD].valid = mtd_size > 0;
-# if defined(CONFIG_ROMFS_FS)
-	cplb_data[SDRAM_RAM_MTD].attr |= I_CPLB;
-
-	/*
-	 * The ROMFS_FS size is often not multiple of 1MB.
-	 * This can cause multiple CPLB sets covering the same memory area.
-	 * This will then cause multiple CPLB hit exceptions.
-	 * Workaround: We ensure a contiguous memory area by extending the kernel
-	 * memory section over the mtd section.
-	 * For ROMFS_FS memory must be covered with ICPLBs anyways.
-	 * So there is no difference between kernel and mtd memory setup.
-	 */
-
-	cplb_data[SDRAM_KERN].end = memory_mtd_start + mtd_size;;
-	cplb_data[SDRAM_RAM_MTD].valid = 0;
-
-# endif
-#else
-	cplb_data[SDRAM_RAM_MTD].valid = 0;
-#endif
-
-	cplb_data[SDRAM_DMAZ].start = _ramend - DMA_UNCACHED_REGION;
-	cplb_data[SDRAM_DMAZ].end = _ramend;
-
-	cplb_data[RES_MEM].start = _ramend;
-	cplb_data[RES_MEM].end = physical_mem_end;
-
-	if (reserved_mem_dcache_on)
-		cplb_data[RES_MEM].d_conf = SDRAM_DGENERIC;
-	else
-		cplb_data[RES_MEM].d_conf = SDRAM_DNON_CHBL;
-
-	if (reserved_mem_icache_on)
-		cplb_data[RES_MEM].i_conf = SDRAM_IGENERIC;
-	else
-		cplb_data[RES_MEM].i_conf = SDRAM_INON_CHBL;
-
-	for (i = ZERO_P; i < ARRAY_SIZE(cplb_data); ++i) {
-		if (!cplb_data[i].valid)
-			continue;
-
-		as_1m = cplb_data[i].start % SIZE_1M;
-
-		/* We need to make sure all sections are properly 1M aligned
-		 * However between Kernel Memory and the Kernel mtd section, depending on the
-		 * rootfs size, there can be overlapping memory areas.
-		 */
-
-		if (as_1m && i != L1I_MEM && i != L1D_MEM) {
-#ifdef CONFIG_MTD_UCLINUX
-			if (i == SDRAM_RAM_MTD) {
-				if ((cplb_data[SDRAM_KERN].end + 1) > cplb_data[SDRAM_RAM_MTD].start)
-					cplb_data[SDRAM_RAM_MTD].start = (cplb_data[i].start & (-2*SIZE_1M)) + SIZE_1M;
-				else
-					cplb_data[SDRAM_RAM_MTD].start = (cplb_data[i].start & (-2*SIZE_1M));
-			} else
-#endif
-				printk(KERN_WARNING "Unaligned Start of %s at 0x%X\n",
-				       cplb_data[i].name, cplb_data[i].start);
-		}
-
-		as = cplb_data[i].start % SIZE_4M;
-		ae = cplb_data[i].end % SIZE_4M;
-
-		if (as)
-			a_start = cplb_data[i].start + (SIZE_4M - (as));
-		else
-			a_start = cplb_data[i].start;
-
-		a_end = cplb_data[i].end - ae;
-
-		for (j = INITIAL_T; j <= SWITCH_T; j++) {
-
-			switch (j) {
-			case INITIAL_T:
-				if (cplb_data[i].attr & INITIAL_T) {
-					t_i = &cplb.init_i;
-					t_d = &cplb.init_d;
-					process = 1;
-				} else
-					process = 0;
-				break;
-			case SWITCH_T:
-				if (cplb_data[i].attr & SWITCH_T) {
-					t_i = &cplb.switch_i;
-					t_d = &cplb.switch_d;
-					process = 1;
-				} else
-					process = 0;
-				break;
-			default:
-					process = 0;
-				break;
-			}
-
-			if (!process)
-				continue;
-			if (cplb_data[i].attr & I_CPLB)
-				__fill_code_cplbtab(t_i, i, a_start, a_end);
-
-			if (cplb_data[i].attr & D_CPLB)
-				__fill_data_cplbtab(t_d, i, a_start, a_end);
-		}
-	}
-
-/* close tables */
-
-	close_cplbtab(&cplb.init_i);
-	close_cplbtab(&cplb.init_d);
-
-	cplb.init_i.tab[cplb.init_i.pos] = -1;
-	cplb.init_d.tab[cplb.init_d.pos] = -1;
-	cplb.switch_i.tab[cplb.switch_i.pos] = -1;
-	cplb.switch_d.tab[cplb.switch_d.pos] = -1;
-
-}
-
-#endif
-
diff --git a/arch/blackfin/mach-common/Makefile b/arch/blackfin/mach-common/Makefile
index 4d7733dfd5de..8636d4284bdb 100644
--- a/arch/blackfin/mach-common/Makefile
+++ b/arch/blackfin/mach-common/Makefile
@@ -3,10 +3,9 @@
 #
 
 obj-y := \
-	cache.o cacheinit.o cplbhdlr.o cplbmgr.o entry.o \
+	cache.o cacheinit.o entry.o \
 	interrupt.o lock.o irqpanic.o arch_checks.o
 
-obj-$(CONFIG_CPLB_INFO)          += cplbinfo.o
 obj-$(CONFIG_BFIN_SINGLE_CORE)   += ints-priority-sc.o
 obj-$(CONFIG_BFIN_DUAL_CORE)     += ints-priority-dc.o
 obj-$(CONFIG_PM)                 += pm.o dpmc.o
diff --git a/arch/blackfin/mach-common/cplbhdlr.S b/arch/blackfin/mach-common/cplbhdlr.S
deleted file mode 100644
index 2788532de72b..000000000000
--- a/arch/blackfin/mach-common/cplbhdlr.S
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * File:         arch/blackfin/mach-common/cplbhdlr.S
- * Based on:
- * Author:       LG Soft India
- *
- * Created:      ?
- * Description:  CPLB exception handler
- *
- * Modified:
- *               Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <linux/linkage.h>
-#include <asm/cplb.h>
-#include <asm/entry.h>
-
-#ifdef CONFIG_EXCPT_IRQ_SYSC_L1
-.section .l1.text
-#else
-.text
-#endif
-
-.type _cplb_mgr, STT_FUNC;
-.type _panic_cplb_error, STT_FUNC;
-
-.align 2
-
-ENTRY(__cplb_hdr)
-	R2 = SEQSTAT;
-
-	/* Mask the contents of SEQSTAT and leave only EXCAUSE in R2 */
-	R2 <<= 26;
-	R2 >>= 26;
-
-	R1 = 0x23; /* Data access CPLB protection violation */
-	CC = R2 == R1;
-	IF !CC JUMP .Lnot_data_write;
-	R0 = 2;		/* is a write to data space*/
-	JUMP .Lis_icplb_miss;
-
-.Lnot_data_write:
-	R1 = 0x2C; /* CPLB miss on an instruction fetch */
-	CC = R2 == R1;
-	R0 = 0;		/* is_data_miss == False*/
-	IF CC JUMP .Lis_icplb_miss;
-
-	R1 = 0x26;
-	CC = R2 == R1;
-	IF !CC JUMP .Lunknown;
-
-	R0 = 1;		/* is_data_miss == True*/
-
-.Lis_icplb_miss:
-
-#if defined(CONFIG_BFIN_ICACHE) || defined(CONFIG_BFIN_DCACHE)
-# if defined(CONFIG_BFIN_ICACHE) && !defined(CONFIG_BFIN_DCACHE)
-	R1 = CPLB_ENABLE_ICACHE;
-# endif
-# if !defined(CONFIG_BFIN_ICACHE) && defined(CONFIG_BFIN_DCACHE)
-	R1 = CPLB_ENABLE_DCACHE;
-# endif
-# if defined(CONFIG_BFIN_ICACHE) && defined(CONFIG_BFIN_DCACHE)
-	R1 = CPLB_ENABLE_DCACHE | CPLB_ENABLE_ICACHE;
-# endif
-#else
-	R1 = 0;
-#endif
-
-	[--SP] = RETS;
-	CALL _cplb_mgr;
-	RETS = [SP++];
-	CC = R0 == 0;
-	IF !CC JUMP .Lnot_replaced;
-	RTS;
-
-/*
- * Diagnostic exception handlers
- */
-.Lunknown:
-	R0 = CPLB_UNKNOWN_ERR;
-	JUMP .Lcplb_error;
-
-.Lnot_replaced:
-	CC = R0 == CPLB_NO_UNLOCKED;
-	IF !CC JUMP .Lnext_check;
-	R0 = CPLB_NO_UNLOCKED;
-	JUMP .Lcplb_error;
-
-.Lnext_check:
-	CC = R0 == CPLB_NO_ADDR_MATCH;
-	IF !CC JUMP .Lnext_check2;
-	R0 = CPLB_NO_ADDR_MATCH;
-	JUMP .Lcplb_error;
-
-.Lnext_check2:
-	CC = R0 == CPLB_PROT_VIOL;
-	IF !CC JUMP .Lstrange_return_from_cplb_mgr;
-	R0 = CPLB_PROT_VIOL;
-	JUMP .Lcplb_error;
-
-.Lstrange_return_from_cplb_mgr:
-	IDLE;
-	CSYNC;
-	JUMP .Lstrange_return_from_cplb_mgr;
-
-.Lcplb_error:
-	R1 = sp;
-	SP += -12;
-	call _panic_cplb_error;
-	SP += 12;
-	JUMP _handle_bad_cplb;
-
-ENDPROC(__cplb_hdr)
diff --git a/arch/blackfin/mach-common/cplbinfo.c b/arch/blackfin/mach-common/cplbinfo.c
deleted file mode 100644
index a4f0b428a34d..000000000000
--- a/arch/blackfin/mach-common/cplbinfo.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/*
- * File:         arch/blackfin/mach-common/cplbinfo.c
- * Based on:
- * Author:       Sonic Zhang <sonic.zhang@analog.com>
- *
- * Created:      Jan. 2005
- * Description:  Display CPLB status
- *
- * Modified:
- *               Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-#include <linux/uaccess.h>
-
-#include <asm/current.h>
-#include <asm/system.h>
-#include <asm/cplb.h>
-#include <asm/blackfin.h>
-
-#define CPLB_I 1
-#define CPLB_D 2
-
-#define SYNC_SYS    SSYNC()
-#define SYNC_CORE   CSYNC()
-
-#define CPLB_BIT_PAGESIZE 0x30000
-
-static int page_size_table[4] = {
-	0x00000400,		/* 1K */
-	0x00001000,		/* 4K */
-	0x00100000,		/* 1M */
-	0x00400000		/* 4M */
-};
-
-static char page_size_string_table[][4] = { "1K", "4K", "1M", "4M" };
-
-static int cplb_find_entry(unsigned long *cplb_addr,
-			   unsigned long *cplb_data, unsigned long addr,
-			   unsigned long data)
-{
-	int ii;
-
-	for (ii = 0; ii < 16; ii++)
-		if (addr >= cplb_addr[ii] && addr < cplb_addr[ii] +
-		    page_size_table[(cplb_data[ii] & CPLB_BIT_PAGESIZE) >> 16]
-			&& (cplb_data[ii] == data))
-			return ii;
-
-	return -1;
-}
-
-static char *cplb_print_entry(char *buf, int type)
-{
-	unsigned long *p_addr = dpdt_table;
-	unsigned long *p_data = dpdt_table + 1;
-	unsigned long *p_icount = dpdt_swapcount_table;
-	unsigned long *p_ocount = dpdt_swapcount_table + 1;
-	unsigned long *cplb_addr = (unsigned long *)DCPLB_ADDR0;
-	unsigned long *cplb_data = (unsigned long *)DCPLB_DATA0;
-	int entry = 0, used_cplb = 0;
-
-	if (type == CPLB_I) {
-		buf += sprintf(buf, "Instruction CPLB entry:\n");
-		p_addr = ipdt_table;
-		p_data = ipdt_table + 1;
-		p_icount = ipdt_swapcount_table;
-		p_ocount = ipdt_swapcount_table + 1;
-		cplb_addr = (unsigned long *)ICPLB_ADDR0;
-		cplb_data = (unsigned long *)ICPLB_DATA0;
-	} else
-		buf += sprintf(buf, "Data CPLB entry:\n");
-
-	buf += sprintf(buf, "Address\t\tData\tSize\tValid\tLocked\tSwapin\tiCount\toCount\n");
-
-	while (*p_addr != 0xffffffff) {
-		entry = cplb_find_entry(cplb_addr, cplb_data, *p_addr, *p_data);
-		if (entry >= 0)
-			used_cplb |= 1 << entry;
-
-		buf +=
-		    sprintf(buf,
-			    "0x%08lx\t0x%05lx\t%s\t%c\t%c\t%2d\t%ld\t%ld\n",
-			    *p_addr, *p_data,
-			    page_size_string_table[(*p_data & 0x30000) >> 16],
-			    (*p_data & CPLB_VALID) ? 'Y' : 'N',
-			    (*p_data & CPLB_LOCK) ? 'Y' : 'N', entry, *p_icount,
-			    *p_ocount);
-
-		p_addr += 2;
-		p_data += 2;
-		p_icount += 2;
-		p_ocount += 2;
-	}
-
-	if (used_cplb != 0xffff) {
-		buf += sprintf(buf, "Unused/mismatched CPLBs:\n");
-
-		for (entry = 0; entry < 16; entry++)
-			if (0 == ((1 << entry) & used_cplb)) {
-				int flags = cplb_data[entry];
-				buf +=
-				    sprintf(buf,
-					    "%2d: 0x%08lx\t0x%05x\t%s\t%c\t%c\n",
-					    entry, cplb_addr[entry], flags,
-					    page_size_string_table[(flags &
-								    0x30000) >>
-								   16],
-					    (flags & CPLB_VALID) ? 'Y' : 'N',
-					    (flags & CPLB_LOCK) ? 'Y' : 'N');
-			}
-	}
-
-	buf += sprintf(buf, "\n");
-
-	return buf;
-}
-
-static int cplbinfo_proc_output(char *buf)
-{
-	char *p;
-
-	p = buf;
-
-	p += sprintf(p, "------------------ CPLB Information ------------------\n\n");
-
-	if (bfin_read_IMEM_CONTROL() & ENICPLB)
-		p = cplb_print_entry(p, CPLB_I);
-	else
-		p += sprintf(p, "Instruction CPLB is disabled.\n\n");
-
-	if (bfin_read_DMEM_CONTROL() & ENDCPLB)
-		p = cplb_print_entry(p, CPLB_D);
-	else
-		p += sprintf(p, "Data CPLB is disabled.\n");
-
-	return p - buf;
-}
-
-static int cplbinfo_read_proc(char *page, char **start, off_t off,
-			      int count, int *eof, void *data)
-{
-	int len;
-
-	len = cplbinfo_proc_output(page);
-	if (len <= off + count)
-		*eof = 1;
-	*start = page + off;
-	len -= off;
-	if (len > count)
-		len = count;
-	if (len < 0)
-		len = 0;
-	return len;
-}
-
-static int cplbinfo_write_proc(struct file *file, const char __user *buffer,
-			       unsigned long count, void *data)
-{
-	printk(KERN_INFO "Reset the CPLB swap in/out counts.\n");
-	memset(ipdt_swapcount_table, 0, MAX_SWITCH_I_CPLBS * sizeof(unsigned long));
-	memset(dpdt_swapcount_table, 0, MAX_SWITCH_D_CPLBS * sizeof(unsigned long));
-
-	return count;
-}
-
-static int __init cplbinfo_init(void)
-{
-	struct proc_dir_entry *entry;
-
-	entry = create_proc_entry("cplbinfo", 0, NULL);
-	if (!entry)
-		return -ENOMEM;
-
-	entry->read_proc = cplbinfo_read_proc;
-	entry->write_proc = cplbinfo_write_proc;
-	entry->data = NULL;
-
-	return 0;
-}
-
-static void __exit cplbinfo_exit(void)
-{
-	remove_proc_entry("cplbinfo", NULL);
-}
-
-module_init(cplbinfo_init);
-module_exit(cplbinfo_exit);
diff --git a/arch/blackfin/mach-common/cplbmgr.S b/arch/blackfin/mach-common/cplbmgr.S
deleted file mode 100644
index f5cf3accef37..000000000000
--- a/arch/blackfin/mach-common/cplbmgr.S
+++ /dev/null
@@ -1,646 +0,0 @@
-/*
- * File:         arch/blackfin/mach-common/cplbmgtr.S
- * Based on:
- * Author:       LG Soft India
- *
- * Created:      ?
- * Description:  CPLB replacement routine for CPLB mismatch
- *
- * Modified:
- *               Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-/* Usage: int _cplb_mgr(is_data_miss,int enable_cache)
- * is_data_miss==2 => Mark as Dirty, write to the clean data page
- * is_data_miss==1 => Replace a data CPLB.
- * is_data_miss==0 => Replace an instruction CPLB.
- *
- * Returns:
- * CPLB_RELOADED	=> Successfully updated CPLB table.
- * CPLB_NO_UNLOCKED	=> All CPLBs are locked, so cannot be evicted.
- *			   This indicates that the CPLBs in the configuration
- *			   tablei are badly configured, as this should never
- *			   occur.
- * CPLB_NO_ADDR_MATCH	=> The address being accessed, that triggered the
- *			   exception, is not covered by any of the CPLBs in
- *			   the configuration table. The application is
- *			   presumably misbehaving.
- * CPLB_PROT_VIOL	=> The address being accessed, that triggered the
- *			   exception, was not a first-write to a clean Write
- *			   Back Data page, and so presumably is a genuine
- *			   violation of the page's protection attributes.
- *			   The application is misbehaving.
- */
-
-#include <linux/linkage.h>
-#include <asm/blackfin.h>
-#include <asm/cplb.h>
-
-#ifdef CONFIG_EXCPT_IRQ_SYSC_L1
-.section .l1.text
-#else
-.text
-#endif
-
-.align 2;
-ENTRY(_cplb_mgr)
-
-	[--SP]=( R7:4,P5:3 );
-
-	CC = R0 == 2;
-	IF CC JUMP .Ldcplb_write;
-
-	CC = R0 == 0;
-	IF !CC JUMP .Ldcplb_miss_compare;
-
-	/* ICPLB Miss Exception. We need to choose one of the
-	* currently-installed CPLBs, and replace it with one
-	* from the configuration table.
-	*/
-
-	/* A multi-word instruction can cross a page boundary. This means the
-	 * first part of the instruction can be in a valid page, but the
-	 * second part is not, and hence generates the instruction miss.
-	 * However, the fault address is for the start of the instruction,
-	 * not the part that's in the bad page. Therefore, we have to check
-	 * whether the fault address applies to a page that is already present
-	 * in the table.
-	 */
-
-	P4.L = LO(ICPLB_FAULT_ADDR);
-	P4.H = HI(ICPLB_FAULT_ADDR);
-
-	P1 = 16;
-	P5.L = _page_size_table;
-	P5.H = _page_size_table;
-
-	P0.L = LO(ICPLB_DATA0);
-	P0.H = HI(ICPLB_DATA0);
-	R4 = [P4];		/* Get faulting address*/
-	R6 = 64;		/* Advance past the fault address, which*/
-	R6 = R6 + R4;		/* we'll use if we find a match*/
-	R3 = ((16 << 8) | 2);	/* Extract mask, two bits at posn 16 */
-
-	R5 = 0;
-.Lisearch:
-
-	R1 = [P0-0x100];	/* Address for this CPLB */
-
-	R0 = [P0++];		/* Info for this CPLB*/
-	CC = BITTST(R0,0);	/* Is the CPLB valid?*/
-	IF !CC JUMP .Lnomatch;	/* Skip it, if not.*/
-	CC = R4 < R1(IU);	/* If fault address less than page start*/
-	IF CC JUMP .Lnomatch;	/* then skip this one.*/
-	R2 = EXTRACT(R0,R3.L) (Z);	/* Get page size*/
-	P1 = R2;
-	P1 = P5 + (P1<<2);	/* index into page-size table*/
-	R2 = [P1];		/* Get the page size*/
-	R1 = R1 + R2;		/* and add to page start, to get page end*/
-	CC = R4 < R1(IU);	/* and see whether fault addr is in page.*/
-	IF !CC R4 = R6;		/* If so, advance the address and finish loop.*/
-	IF !CC JUMP .Lisearch_done;
-.Lnomatch:
-	/* Go around again*/
-	R5 += 1;
-	CC = BITTST(R5, 4);	/* i.e CC = R5 >= 16*/
-	IF !CC JUMP .Lisearch;
-
-.Lisearch_done:
-	I0 = R4;		/* Fault address we'll search for*/
-
-	/* set up pointers */
-	P0.L = LO(ICPLB_DATA0);
-	P0.H = HI(ICPLB_DATA0);
-
-	/* The replacement procedure for ICPLBs */
-
-	P4.L = LO(IMEM_CONTROL);
-	P4.H = HI(IMEM_CONTROL);
-
-	/* Turn off CPLBs while we work, necessary according to HRM before
-	 * modifying CPLB descriptors
-	 */
-	R5 = [P4];		/* Control Register*/
-	BITCLR(R5,ENICPLB_P);
-	CLI R1;
-	SSYNC;		/* SSYNC required before writing to IMEM_CONTROL. */
-	.align 8;
-	[P4] = R5;
-	SSYNC;
-	STI R1;
-
-	R1 = -1;		/* end point comparison */
-	R3 = 16;		/* counter */
-
-	/* Search through CPLBs for first non-locked entry */
-	/* Overwrite it by moving everyone else up by 1 */
-.Licheck_lock:
-	R0 = [P0++];
-	R3 = R3 + R1;
-	CC = R3 == R1;
-	IF CC JUMP .Lall_locked;
-	CC = BITTST(R0, 0);		/* an invalid entry is good */
-	IF !CC JUMP .Lifound_victim;
-	CC = BITTST(R0,1);		/* but a locked entry isn't */
-	IF CC JUMP .Licheck_lock;
-
-.Lifound_victim:
-#ifdef CONFIG_CPLB_INFO
-	R7 = [P0 - 0x104];
-	P2.L = _ipdt_table;
-	P2.H = _ipdt_table;
-	P3.L = _ipdt_swapcount_table;
-	P3.H = _ipdt_swapcount_table;
-	P3 += -4;
-.Licount:
-	R2 = [P2];	/* address from config table */
-	P2 += 8;
-	P3 += 8;
-	CC = R2==-1;
-	IF CC JUMP .Licount_done;
-	CC = R7==R2;
-	IF !CC JUMP .Licount;
-	R7 = [P3];
-	R7 += 1;
-	[P3] = R7;
-	CSYNC;
-.Licount_done:
-#endif
-	LC0=R3;
-	LSETUP(.Lis_move,.Lie_move) LC0;
-.Lis_move:
-	R0 = [P0];
-	[P0 - 4] = R0;
-	R0 = [P0 - 0x100];
-	[P0-0x104] = R0;
-.Lie_move:
-	P0+=4;
-
-	/* Clear ICPLB_DATA15, in case we don't find a replacement
-	 * otherwise, we would have a duplicate entry, and will crash
-	 */
-	R0 = 0;
-	[P0 - 4] = R0;
-
-	/* We've made space in the ICPLB table, so that ICPLB15
-	 * is now free to be overwritten. Next, we have to determine
-	 * which CPLB we need to install, from the configuration
-	 * table. This is a matter of getting the start-of-page
-	 * addresses and page-lengths from the config table, and
-	 * determining whether the fault address falls within that
-	 * range.
- 	 */
-
-	P2.L = _ipdt_table;
-	P2.H = _ipdt_table;
-#ifdef	CONFIG_CPLB_INFO
-	P3.L = _ipdt_swapcount_table;
-	P3.H = _ipdt_swapcount_table;
-	P3 += -8;
-#endif
-	P0.L = _page_size_table;
-	P0.H = _page_size_table;
-
-	/* Retrieve our fault address (which may have been advanced
-	 * because the faulting instruction crossed a page boundary).
-	 */
-
-	R0 = I0;
-
-	/* An extraction pattern, to get the page-size bits from
-	 * the CPLB data entry. Bits 16-17, so two bits at posn 16.
-	 */
-
-	R1 = ((16<<8)|2);
-.Linext:	R4 = [P2++];	/* address from config table */
-	R2 = [P2++];	/* data from config table */
-#ifdef	CONFIG_CPLB_INFO
-	P3 += 8;
-#endif
-
-	CC = R4 == -1;	/* End of config table*/
-	IF CC JUMP .Lno_page_in_table;
-
-	/* See if failed address > start address */
-	CC = R4 <= R0(IU);
-	IF !CC JUMP .Linext;
-
-	/* extract page size (17:16)*/
-	R3 = EXTRACT(R2, R1.L) (Z);
-
-	/* add page size to addr to get range */
-
-	P5 = R3;
-	P5 = P0 + (P5 << 2);	/* scaled, for int access*/
-	R3 = [P5];
-	R3 = R3 + R4;
-
-	/* See if failed address < (start address + page size) */
-	CC = R0 < R3(IU);
-	IF !CC JUMP .Linext;
-
-	/* We've found a CPLB in the config table that covers
-	 * the faulting address, so install this CPLB into the
-	 * last entry of the table.
-	 */
-
-	P1.L = LO(ICPLB_DATA15);		/* ICPLB_DATA15 */
-	P1.H = HI(ICPLB_DATA15);
-	[P1] = R2;
-	[P1-0x100] = R4;
-#ifdef	CONFIG_CPLB_INFO
-	R3 = [P3];
-	R3 += 1;
-	[P3] = R3;
-#endif
-
-	/* P4 points to IMEM_CONTROL, and R5 contains its old
-	 * value, after we disabled ICPLBS. Re-enable them.
-	 */
-
-	BITSET(R5,ENICPLB_P);
-	CLI R2;
-	SSYNC;		/* SSYNC required before writing to IMEM_CONTROL. */
-	.align 8;
-	[P4] = R5;
-	SSYNC;
-	STI R2;
-
-	( R7:4,P5:3 ) = [SP++];
-	R0 = CPLB_RELOADED;
-	RTS;
-
-/* FAILED CASES*/
-.Lno_page_in_table:
-	R0 = CPLB_NO_ADDR_MATCH;
-	JUMP .Lfail_ret;
-
-.Lall_locked:
-	R0 = CPLB_NO_UNLOCKED;
-	JUMP .Lfail_ret;
-
-.Lprot_violation:
-	R0 = CPLB_PROT_VIOL;
-
-.Lfail_ret:
-	/* Make sure we turn protection/cache back on, even in the failing case */
-	BITSET(R5,ENICPLB_P);
-	CLI R2;
-	SSYNC;          /* SSYNC required before writing to IMEM_CONTROL. */
-	.align 8;
-	[P4] = R5;
-	SSYNC;
-	STI R2;
-
-	( R7:4,P5:3 ) = [SP++];
-	RTS;
-
-.Ldcplb_write:
-
-	/* if a DCPLB is marked as write-back (CPLB_WT==0), and
-	 * it is clean (CPLB_DIRTY==0), then a write to the
-	 * CPLB's page triggers a protection violation. We have to
-	 * mark the CPLB as dirty, to indicate that there are
-	 * pending writes associated with the CPLB.
-	 */
-
-	P4.L = LO(DCPLB_STATUS);
-	P4.H = HI(DCPLB_STATUS);
-	P3.L = LO(DCPLB_DATA0);
-	P3.H = HI(DCPLB_DATA0);
-	R5 = [P4];
-
-	/* A protection violation can be caused by more than just writes
-	 * to a clean WB page, so we have to ensure that:
-	 * - It's a write
-	 * - to a clean WB page
-	 * - and is allowed in the mode the access occurred.
-	 */
-
-	CC = BITTST(R5, 16);	/* ensure it was a write*/
-	IF !CC JUMP .Lprot_violation;
-
-	/* to check the rest, we have to retrieve the DCPLB.*/
-
-	/* The low half of DCPLB_STATUS is a bit mask*/
-
-	R2 = R5.L (Z);	/* indicating which CPLB triggered the event.*/
-	R3 = 30;	/* so we can use this to determine the offset*/
-	R2.L = SIGNBITS R2;
-	R2 = R2.L (Z);	/* into the DCPLB table.*/
-	R3 = R3 - R2;
-	P4 = R3;
-	P3 = P3 + (P4<<2);
-	R3 = [P3];	/* Retrieve the CPLB*/
-
-	/* Now we can check whether it's a clean WB page*/
-
-	CC = BITTST(R3, 14);	/* 0==WB, 1==WT*/
-	IF CC JUMP .Lprot_violation;
-	CC = BITTST(R3, 7);	/* 0 == clean, 1 == dirty*/
-	IF CC JUMP .Lprot_violation;
-
-	/* Check whether the write is allowed in the mode that was active.*/
-
-	R2 = 1<<3;		/* checking write in user mode*/
-	CC = BITTST(R5, 17);	/* 0==was user, 1==was super*/
-	R5 = CC;
-	R2 <<= R5;		/* if was super, check write in super mode*/
-	R2 = R3 & R2;
-	CC = R2 == 0;
-	IF CC JUMP .Lprot_violation;
-
-	/* It's a genuine write-to-clean-page.*/
-
-	BITSET(R3, 7);		/* mark as dirty*/
-	[P3] = R3;		/* and write back.*/
-	NOP;
-	CSYNC;
-	( R7:4,P5:3 ) = [SP++];
-	R0 = CPLB_RELOADED;
-	RTS;
-
-.Ldcplb_miss_compare:
-
-	/* Data CPLB Miss event. We need to choose a CPLB to
-	 * evict, and then locate a new CPLB to install from the
-	 * config table, that covers the faulting address.
-	 */
-
-	P1.L = LO(DCPLB_DATA15);
-	P1.H = HI(DCPLB_DATA15);
-
-	P4.L = LO(DCPLB_FAULT_ADDR);
-	P4.H = HI(DCPLB_FAULT_ADDR);
-	R4 = [P4];
-	I0 = R4;
-
-	/* The replacement procedure for DCPLBs*/
-
-	R6 = R1;	/* Save for later*/
-
-	/* Turn off CPLBs while we work.*/
-	P4.L = LO(DMEM_CONTROL);
-	P4.H = HI(DMEM_CONTROL);
-	R5 = [P4];
-	BITCLR(R5,ENDCPLB_P);
-	CLI R0;
-	SSYNC;		/* SSYNC required before writing to DMEM_CONTROL. */
-	.align 8;
-	[P4] = R5;
-	SSYNC;
-	STI R0;
-
-	/* Start looking for a CPLB to evict. Our order of preference
-	 * is: invalid CPLBs, clean CPLBs, dirty CPLBs. Locked CPLBs
-	 * are no good.
-	 */
-
-	I1.L = LO(DCPLB_DATA0);
-	I1.H = HI(DCPLB_DATA0);
-	P1 = 2;
-	P2 = 16;
-	I2.L = _dcplb_preference;
-	I2.H = _dcplb_preference;
-	LSETUP(.Lsdsearch1, .Ledsearch1) LC0 = P1;
-.Lsdsearch1:
-	R0 = [I2++];		/* Get the bits we're interested in*/
-	P0 = I1;		/* Go back to start of table*/
-	LSETUP (.Lsdsearch2, .Ledsearch2) LC1 = P2;
-.Lsdsearch2:
-	R1 = [P0++];		/* Fetch each installed CPLB in turn*/
-	R2 = R1 & R0;		/* and test for interesting bits.*/
-	CC = R2 == 0;		/* If none are set, it'll do.*/
-	IF !CC JUMP .Lskip_stack_check;
-
-	R2 = [P0 - 0x104]; 	/* R2 - PageStart */
-	P3.L = _page_size_table; /* retrieve end address */
-	P3.H = _page_size_table; /* retrieve end address */
-	R3 = 0x1002;		/* 16th - position, 2 bits -length */
-#if ANOMALY_05000209
-	nop;			/* Anomaly 05000209 */
-#endif
-	R7 = EXTRACT(R1,R3.l);
-	R7 = R7 << 2;		/* Page size index offset */
-	P5 = R7;
-	P3 = P3 + P5;
-	R7 = [P3];		/* page size in bytes */
-
-	R7 = R2 + R7;		/* R7 - PageEnd */
-	R4 = SP; 		/* Test SP is in range */
-
-	CC = R7 < R4;		/* if PageEnd < SP */
-	IF CC JUMP .Ldfound_victim;
-	R3 = 0x284;		/* stack length from start of trap till
-				 * the point.
-				 * 20 stack locations for future modifications
-				 */
-	R4 = R4 + R3;
-	CC = R4 < R2;		/* if SP + stacklen < PageStart */
-	IF CC JUMP .Ldfound_victim;
-.Lskip_stack_check:
-
-.Ledsearch2: NOP;
-.Ledsearch1: NOP;
-
-	/* If we got here, we didn't find a DCPLB we considered
-	 * replacable, which means all of them were locked.
-	 */
-
-	JUMP .Lall_locked;
-.Ldfound_victim:
-
-#ifdef CONFIG_CPLB_INFO
-	R7 = [P0 - 0x104];
-	P2.L = _dpdt_table;
-	P2.H = _dpdt_table;
-	P3.L = _dpdt_swapcount_table;
-	P3.H = _dpdt_swapcount_table;
-	P3 += -4;
-.Ldicount:
-	R2 = [P2];
-	P2 += 8;
-	P3 += 8;
-	CC = R2==-1;
-	IF CC JUMP .Ldicount_done;
-	CC = R7==R2;
-	IF !CC JUMP .Ldicount;
-	R7 = [P3];
-	R7 += 1;
-	[P3] = R7;
-.Ldicount_done:
-#endif
-
-	/* Clean down the hardware loops*/
-	R2 = 0;
-	LC1 = R2;
-	LC0 = R2;
-
-	/* There's a suitable victim in [P0-4] (because we've
-	 * advanced already).
-	 */
-
-.LDdoverwrite:
-
-	/* [P0-4] is a suitable victim CPLB, so we want to
-	 * overwrite it by moving all the following CPLBs
-	 * one space closer to the start.
-	 */
-
-	R1.L = LO(DCPLB_DATA16);		/* DCPLB_DATA15 + 4 */
-	R1.H = HI(DCPLB_DATA16);
-	R0 = P0;
-
-	/* If the victim happens to be in DCPLB15,
-	 * we don't need to move anything.
-	 */
-
-	CC = R1 == R0;
-	IF CC JUMP .Lde_moved;
-	R1 = R1 - R0;
-	R1 >>= 2;
-	P1 = R1;
-	LSETUP(.Lds_move, .Lde_move) LC0=P1;
-.Lds_move:
-	R0 = [P0++];	/* move data */
-	[P0 - 8] = R0;
-	R0 = [P0-0x104]	/* move address */
-.Lde_move:
-	 [P0-0x108] = R0;
-
-.Lde_moved:
-	NOP;
-
-	/* Clear DCPLB_DATA15, in case we don't find a replacement
-	 * otherwise, we would have a duplicate entry, and will crash
-	 */
-	R0 = 0;
-	[P0 - 0x4] = R0;
-
-	/* We've now made space in DCPLB15 for the new CPLB to be
-	 * installed. The next stage is to locate a CPLB in the
-	 * config table that covers the faulting address.
-	 */
-
-	R0 = I0;		/* Our faulting address */
-
-	P2.L = _dpdt_table;
-	P2.H = _dpdt_table;
-#ifdef	CONFIG_CPLB_INFO
-	P3.L = _dpdt_swapcount_table;
-	P3.H = _dpdt_swapcount_table;
-	P3 += -8;
-#endif
-
-	P1.L = _page_size_table;
-	P1.H = _page_size_table;
-
-	/* An extraction pattern, to retrieve bits 17:16.*/
-
-	R1 = (16<<8)|2;
-.Ldnext:	R4 = [P2++];	/* address */
-	R2 = [P2++];	/* data */
-#ifdef	CONFIG_CPLB_INFO
-	P3 += 8;
-#endif
-
-	CC = R4 == -1;
-	IF CC JUMP .Lno_page_in_table;
-
-	/* See if failed address > start address */
-	CC = R4 <= R0(IU);
-	IF !CC JUMP .Ldnext;
-
-	/* extract page size (17:16)*/
-	R3 = EXTRACT(R2, R1.L) (Z);
-
-	/* add page size to addr to get range */
-
-	P5 = R3;
-	P5 = P1 + (P5 << 2);
-	R3 = [P5];
-	R3 = R3 + R4;
-
-	/* See if failed address < (start address + page size) */
-	CC = R0 < R3(IU);
-	IF !CC JUMP .Ldnext;
-
-	/* We've found the CPLB that should be installed, so
-	 * write it into CPLB15, masking off any caching bits
-	 * if necessary.
-	 */
-
-	P1.L = LO(DCPLB_DATA15);
-	P1.H = HI(DCPLB_DATA15);
-
-	/* If the DCPLB has cache bits set, but caching hasn't
-	 * been enabled, then we want to mask off the cache-in-L1
-	 * bit before installing. Moreover, if caching is off, we
-	 * also want to ensure that the DCPLB has WT mode set, rather
-	 * than WB, since WB pages still trigger first-write exceptions
-	 * even when not caching is off, and the page isn't marked as
-	 * cachable. Finally, we could mark the page as clean, not dirty,
-	 * but we choose to leave that decision to the user; if the user
-	 * chooses to have a CPLB pre-defined as dirty, then they always
-	 * pay the cost of flushing during eviction, but don't pay the
-	 * cost of first-write exceptions to mark the page as dirty.
-	 */
-
-#ifdef CONFIG_BFIN_WT
-	BITSET(R6, 14);		/* Set WT*/
-#endif
-
-	[P1] = R2;
-	[P1-0x100] = R4;
-#ifdef	CONFIG_CPLB_INFO
-	R3 = [P3];
-	R3 += 1;
-	[P3] = R3;
-#endif
-
-	/* We've installed the CPLB, so re-enable CPLBs. P4
-	 * points to DMEM_CONTROL, and R5 is the value we
-	 * last wrote to it, when we were disabling CPLBs.
-	 */
-
-	BITSET(R5,ENDCPLB_P);
-	CLI R2;
-	.align 8;
-	[P4] = R5;
-	SSYNC;
-	STI R2;
-
-	( R7:4,P5:3 ) = [SP++];
-	R0 = CPLB_RELOADED;
-	RTS;
-ENDPROC(_cplb_mgr)
-
-.data
-.align 4;
-_page_size_table:
-.byte4	0x00000400;	/* 1K */
-.byte4	0x00001000;	/* 4K */
-.byte4	0x00100000;	/* 1M */
-.byte4	0x00400000;	/* 4M */
-
-.align 4;
-_dcplb_preference:
-.byte4	0x00000001;	/* valid bit */
-.byte4	0x00000002;	/* lock bit */
-- 
cgit v1.2.3-59-g8ed1b


From 4521ef42de8dbaa9bce3f60bbb5868564f752e98 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Fri, 11 Jan 2008 17:21:41 +0800
Subject: [Blackfin] arch: Add some comments - fix semicolons

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-common/dpmc.S | 32 +++++++++++++++-----------------
 1 file changed, 15 insertions(+), 17 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-common/dpmc.S b/arch/blackfin/mach-common/dpmc.S
index 301ac1b6681f..b82c096e1980 100644
--- a/arch/blackfin/mach-common/dpmc.S
+++ b/arch/blackfin/mach-common/dpmc.S
@@ -175,7 +175,7 @@ ENTRY(_sleep_mode)
 	call _set_sic_iwr;
 
 	R0 = 0xFFFF (Z);
-	call _set_rtc_istat
+	call _set_rtc_istat;
 
 	P0.H = hi(PLL_CTL);
 	P0.L = lo(PLL_CTL);
@@ -213,7 +213,7 @@ ENTRY(_hibernate_mode)
 	call _set_sic_iwr;
 
 	R0 = 0xFFFF (Z);
-	call _set_rtc_istat
+	call _set_rtc_istat;
 
 	P0.H = hi(VR_CTL);
 	P0.L = lo(VR_CTL);
@@ -288,23 +288,22 @@ ENTRY(_sleep_deeper)
 	P3 = R0;
 	R0 = IWR_ENABLE(0);
 	call _set_sic_iwr;
-	call _set_dram_srfs;
+	call _set_dram_srfs;	/* Set SDRAM Self Refresh */
 
 	/* Clear all the interrupts,bits sticky */
 	R0 = 0xFFFF (Z);
-	call _set_rtc_istat
-
+	call _set_rtc_istat;
 	P0.H = hi(PLL_DIV);
 	P0.L = lo(PLL_DIV);
 	R6 = W[P0](z);
 	R0.L = 0xF;
-	W[P0] = R0.l;
+	W[P0] = R0.l;		/* Set Max VCO to SCLK divider */
 
 	P0.H = hi(PLL_CTL);
 	P0.L = lo(PLL_CTL);
 	R5 = W[P0](z);
 	R0.L = (CONFIG_MIN_VCO_HZ/CONFIG_CLKIN_HZ) << 9;
-	W[P0] = R0.l;
+	W[P0] = R0.l;		/* Set Min CLKIN to VCO multiplier */
 
 	SSYNC;
 	IDLE;
@@ -320,29 +319,28 @@ ENTRY(_sleep_deeper)
 	R1 = R1|R2;
 
 	R2 = DEPOSIT(R7, R1);
-	W[P0] = R2;
+	W[P0] = R2;		/* Set Min Core Voltage */
 
 	SSYNC;
 	IDLE;
 
 	call _test_pll_locked;
 
+	R0 = P3;
+	call _set_sic_iwr;	/* Set Awake from IDLE */
+
 	P0.H = hi(PLL_CTL);
 	P0.L = lo(PLL_CTL);
 	R0 = W[P0](z);
 	BITSET (R0, 3);
-	W[P0] = R0.L;
-
-	R0 = P3;
-	call _set_sic_iwr;
-
+	W[P0] = R0.L;		/* Turn CCLK OFF */
 	SSYNC;
 	IDLE;
 
 	call _test_pll_locked;
 
 	R0 = IWR_ENABLE(0);
-	call _set_sic_iwr;
+	call _set_sic_iwr;	/* Set Awake from IDLE PLL */
 
 	P0.H = hi(VR_CTL);
 	P0.L = lo(VR_CTL);
@@ -355,15 +353,15 @@ ENTRY(_sleep_deeper)
 
 	P0.H = hi(PLL_DIV);
 	P0.L = lo(PLL_DIV);
-	W[P0]= R6;
+	W[P0]= R6;		/* Restore CCLK and SCLK divider */
 
 	P0.H = hi(PLL_CTL);
 	P0.L = lo(PLL_CTL);
-	w[p0] = R5;
+	w[p0] = R5;		/* Restore VCO multiplier */
 	IDLE;
 	call _test_pll_locked;
 
-	call _unset_dram_srfs;
+	call _unset_dram_srfs;	/* SDRAM Self Refresh Off */
 
 	STI R4;
 
-- 
cgit v1.2.3-59-g8ed1b


From 2047e40d724d42928c0b5994a1568c1b738efdb7 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Tue, 22 Jan 2008 15:29:18 +0800
Subject: [Blackfin] arch: set_bfin_dma_config shouldnt set SYNC or RESTART by
 default - add argument or option

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/bfin_dma_5xx.c | 4 ++--
 drivers/serial/bfin_5xx.c           | 6 ++++--
 drivers/video/bf54x-lq043fb.c       | 3 ++-
 include/asm-blackfin/dma.h          | 6 +++++-
 4 files changed, 13 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c
index b54446055a43..fa9debe8d5f4 100644
--- a/arch/blackfin/kernel/bfin_dma_5xx.c
+++ b/arch/blackfin/kernel/bfin_dma_5xx.c
@@ -339,13 +339,13 @@ EXPORT_SYMBOL(set_dma_config);
 
 unsigned short
 set_bfin_dma_config(char direction, char flow_mode,
-		    char intr_mode, char dma_mode, char width)
+		    char intr_mode, char dma_mode, char width, char syncmode)
 {
 	unsigned short config;
 
 	config =
 	    ((direction << 1) | (width << 2) | (dma_mode << 4) |
-	     (intr_mode << 6) | (flow_mode << 12) | RESTART);
+	     (intr_mode << 6) | (flow_mode << 12) | (syncmode << 5));
 	return config;
 }
 EXPORT_SYMBOL(set_bfin_dma_config);
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index 6f475b609864..ac2a3ef28d55 100644
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -442,7 +442,8 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
 		set_bfin_dma_config(DIR_READ, DMA_FLOW_STOP,
 			INTR_ON_BUF,
 			DIMENSION_LINEAR,
-			DATA_SIZE_8));
+			DATA_SIZE_8,
+			DMA_SYNC_RESTART));
 	set_dma_start_addr(uart->tx_dma_channel, (unsigned long)(xmit->buf+xmit->tail));
 	set_dma_x_count(uart->tx_dma_channel, uart->tx_count);
 	set_dma_x_modify(uart->tx_dma_channel, 1);
@@ -689,7 +690,8 @@ static int bfin_serial_startup(struct uart_port *port)
 	set_dma_config(uart->rx_dma_channel,
 		set_bfin_dma_config(DIR_WRITE, DMA_FLOW_AUTO,
 				INTR_ON_ROW, DIMENSION_2D,
-				DATA_SIZE_8));
+				DATA_SIZE_8,
+				DMA_SYNC_RESTART));
 	set_dma_x_count(uart->rx_dma_channel, DMA_RX_XCOUNT);
 	set_dma_x_modify(uart->rx_dma_channel, 1);
 	set_dma_y_count(uart->rx_dma_channel, DMA_RX_YCOUNT);
diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c
index 74d11c318987..1b7e54de0d76 100644
--- a/drivers/video/bf54x-lq043fb.c
+++ b/drivers/video/bf54x-lq043fb.c
@@ -224,7 +224,8 @@ static int config_dma(struct bfin_bf54xfb_info *fbi)
 	set_dma_config(CH_EPPI0,
 		       set_bfin_dma_config(DIR_READ, DMA_FLOW_AUTO,
 					   INTR_DISABLE, DIMENSION_2D,
-					   DATA_SIZE_32));
+					   DATA_SIZE_32,
+					   DMA_NOSYNC_KEEP_DMA_BUF));
 	set_dma_x_count(CH_EPPI0, (LCD_X_RES * LCD_BPP) / DMA_BUS_SIZE);
 	set_dma_x_modify(CH_EPPI0, DMA_BUS_SIZE / 8);
 	set_dma_y_count(CH_EPPI0, LCD_Y_RES);
diff --git a/include/asm-blackfin/dma.h b/include/asm-blackfin/dma.h
index b469505af364..5abaa2cee8db 100644
--- a/include/asm-blackfin/dma.h
+++ b/include/asm-blackfin/dma.h
@@ -76,6 +76,9 @@ enum dma_chan_status {
 #define INTR_ON_BUF    2
 #define INTR_ON_ROW    3
 
+#define DMA_NOSYNC_KEEP_DMA_BUF	0
+#define DMA_SYNC_RESTART	1
+
 struct dmasg {
 	unsigned long next_desc_addr;
 	unsigned long start_addr;
@@ -157,7 +160,8 @@ void set_dma_y_count(unsigned int channel, unsigned short y_count);
 void set_dma_y_modify(unsigned int channel, short y_modify);
 void set_dma_config(unsigned int channel, unsigned short config);
 unsigned short set_bfin_dma_config(char direction, char flow_mode,
-				   char intr_mode, char dma_mode, char width);
+				   char intr_mode, char dma_mode, char width,
+				   char syncmode);
 void set_dma_curr_addr(unsigned int channel, unsigned long addr);
 
 /* get curr status for polling */
-- 
cgit v1.2.3-59-g8ed1b


From b97b8a998397e8c64699559099fa9febffae2b4d Mon Sep 17 00:00:00 2001
From: Bernd Schmidt <bernd.schmidt@analog.com>
Date: Sun, 27 Jan 2008 18:39:16 +0800
Subject: [Blackfin] arch: Initial checkin of the memory protection support.

Enable it with CONFIG_MPU.

Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/Kconfig                     |   9 +
 arch/blackfin/Makefile                    |   6 +-
 arch/blackfin/kernel/cplb-mpu/Makefile    |   8 +
 arch/blackfin/kernel/cplb-mpu/cacheinit.c |  62 ++++++
 arch/blackfin/kernel/cplb-mpu/cplbinfo.c  | 144 +++++++++++++
 arch/blackfin/kernel/cplb-mpu/cplbinit.c  |  91 ++++++++
 arch/blackfin/kernel/cplb-mpu/cplbmgr.c   | 338 ++++++++++++++++++++++++++++++
 arch/blackfin/kernel/setup.c              |  10 +
 arch/blackfin/mach-common/entry.S         |  19 ++
 arch/blackfin/mm/init.c                   |   4 +-
 include/asm-blackfin/cplb-mpu.h           |  61 ++++++
 include/asm-blackfin/cplb.h               |   4 +
 include/asm-blackfin/cplbinit.h           |   8 +
 include/asm-blackfin/mmu.h                |   4 +-
 include/asm-blackfin/mmu_context.h        |  62 +++++-
 15 files changed, 822 insertions(+), 8 deletions(-)
 create mode 100644 arch/blackfin/kernel/cplb-mpu/Makefile
 create mode 100644 arch/blackfin/kernel/cplb-mpu/cacheinit.c
 create mode 100644 arch/blackfin/kernel/cplb-mpu/cplbinfo.c
 create mode 100644 arch/blackfin/kernel/cplb-mpu/cplbinit.c
 create mode 100644 arch/blackfin/kernel/cplb-mpu/cplbmgr.c
 create mode 100644 include/asm-blackfin/cplb-mpu.h

(limited to 'arch')

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index ce521a921bee..6b96d7d21aea 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -765,6 +765,15 @@ config L1_MAX_PIECE
 	  Set the max memory pieces for the L1 SRAM allocation algorithm.
 	  Min value is 16. Max value is 1024.
 
+
+config MPU
+	bool "Enable the memory protection unit (EXPERIMENTAL)"
+	default n
+	help
+	  Use the processor's MPU to protect applications from accessing
+	  memory they do not own.  This comes at a performance penalty
+	  and is recommended only for debugging.
+
 comment "Asynchonous Memory Configuration"
 
 menu "EBIU_AMGCTL Global Control"
diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile
index 2fc899c5e45f..0edc402fef54 100644
--- a/arch/blackfin/Makefile
+++ b/arch/blackfin/Makefile
@@ -82,7 +82,11 @@ core-y   += arch/$(ARCH)/mach-$(MACHINE)/
 core-y   += arch/$(ARCH)/mach-$(MACHINE)/boards/
 endif
 
-core-y	 += arch/$(ARCH)/kernel/cplb-nompu/
+ifeq ($(CONFIG_MPU),y)
+core-y	+= arch/$(ARCH)/kernel/cplb-mpu/
+else
+core-y	+= arch/$(ARCH)/kernel/cplb-nompu/
+endif
 
 libs-y   += arch/$(ARCH)/lib/
 
diff --git a/arch/blackfin/kernel/cplb-mpu/Makefile b/arch/blackfin/kernel/cplb-mpu/Makefile
new file mode 100644
index 000000000000..286b69357f97
--- /dev/null
+++ b/arch/blackfin/kernel/cplb-mpu/Makefile
@@ -0,0 +1,8 @@
+#
+# arch/blackfin/kernel/cplb-nompu/Makefile
+#
+
+obj-y := cplbinit.o cacheinit.o cplbmgr.o
+
+obj-$(CONFIG_CPLB_INFO) += cplbinfo.o
+
diff --git a/arch/blackfin/kernel/cplb-mpu/cacheinit.c b/arch/blackfin/kernel/cplb-mpu/cacheinit.c
new file mode 100644
index 000000000000..9eecfa403187
--- /dev/null
+++ b/arch/blackfin/kernel/cplb-mpu/cacheinit.c
@@ -0,0 +1,62 @@
+/*
+ *               Copyright 2004-2007 Analog Devices Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/cpu.h>
+
+#include <asm/cacheflush.h>
+#include <asm/blackfin.h>
+#include <asm/cplb.h>
+#include <asm/cplbinit.h>
+
+#if defined(CONFIG_BFIN_ICACHE)
+void bfin_icache_init(void)
+{
+	unsigned long ctrl;
+	int i;
+
+	SSYNC();
+	for (i = 0; i < MAX_CPLBS; i++) {
+		bfin_write32(ICPLB_ADDR0 + i * 4, icplb_tbl[i].addr);
+		bfin_write32(ICPLB_DATA0 + i * 4, icplb_tbl[i].data);
+	}
+	ctrl = bfin_read_IMEM_CONTROL();
+	ctrl |= IMC | ENICPLB;
+	bfin_write_IMEM_CONTROL(ctrl);
+	SSYNC();
+}
+#endif
+
+#if defined(CONFIG_BFIN_DCACHE)
+void bfin_dcache_init(void)
+{
+	unsigned long ctrl;
+	int i;
+
+	SSYNC();
+	for (i = 0; i < MAX_CPLBS; i++) {
+		bfin_write32(DCPLB_ADDR0 + i * 4, dcplb_tbl[i].addr);
+		bfin_write32(DCPLB_DATA0 + i * 4, dcplb_tbl[i].data);
+	}
+
+	ctrl = bfin_read_DMEM_CONTROL();
+	ctrl |= DMEM_CNTR;
+	bfin_write_DMEM_CONTROL(ctrl);
+	SSYNC();
+}
+#endif
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinfo.c b/arch/blackfin/kernel/cplb-mpu/cplbinfo.c
new file mode 100644
index 000000000000..bd072299f7f2
--- /dev/null
+++ b/arch/blackfin/kernel/cplb-mpu/cplbinfo.c
@@ -0,0 +1,144 @@
+/*
+ * File:         arch/blackfin/mach-common/cplbinfo.c
+ * Based on:
+ * Author:       Sonic Zhang <sonic.zhang@analog.com>
+ *
+ * Created:      Jan. 2005
+ * Description:  Display CPLB status
+ *
+ * Modified:
+ *               Copyright 2004-2006 Analog Devices Inc.
+ *
+ * Bugs:         Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/uaccess.h>
+
+#include <asm/current.h>
+#include <asm/system.h>
+#include <asm/cplb.h>
+#include <asm/cplbinit.h>
+#include <asm/blackfin.h>
+
+#define CPLB_I 1
+#define CPLB_D 2
+
+#define SYNC_SYS    SSYNC()
+#define SYNC_CORE   CSYNC()
+
+#define CPLB_BIT_PAGESIZE 0x30000
+
+static char page_size_string_table[][4] = { "1K", "4K", "1M", "4M" };
+
+static char *cplb_print_entry(char *buf, struct cplb_entry *tbl, int switched)
+{
+	int i;
+	buf += sprintf(buf, "Index\tAddress\t\tData\tSize\tU/RD\tU/WR\tS/WR\tSwitch\n");
+	for (i = 0; i < MAX_CPLBS; i++) {
+		unsigned long data = tbl[i].data;
+		unsigned long addr = tbl[i].addr;
+		if (!(data & CPLB_VALID))
+			continue;
+
+		buf +=
+		    sprintf(buf,
+			    "%d\t0x%08lx\t%06lx\t%s\t%c\t%c\t%c\t%c\n",
+			    i, addr, data,
+			    page_size_string_table[(data & 0x30000) >> 16],
+			    (data & CPLB_USER_RD) ? 'Y' : 'N',
+			    (data & CPLB_USER_WR) ? 'Y' : 'N',
+			    (data & CPLB_SUPV_WR) ? 'Y' : 'N',
+			    i < switched ? 'N' : 'Y');
+	}
+	buf += sprintf(buf, "\n");
+
+	return buf;
+}
+
+int cplbinfo_proc_output(char *buf)
+{
+	char *p;
+
+	p = buf;
+
+	p += sprintf(p, "------------------ CPLB Information ------------------\n\n");
+
+	if (bfin_read_IMEM_CONTROL() & ENICPLB) {
+		p += sprintf(p, "Instruction CPLB entry:\n");
+		p = cplb_print_entry(p, icplb_tbl, first_switched_icplb);
+	} else
+		p += sprintf(p, "Instruction CPLB is disabled.\n\n");
+
+	if (1 || bfin_read_DMEM_CONTROL() & ENDCPLB) {
+		p += sprintf(p, "Data CPLB entry:\n");
+		p = cplb_print_entry(p, dcplb_tbl, first_switched_dcplb);
+	} else
+		p += sprintf(p, "Data CPLB is disabled.\n");
+
+	p += sprintf(p, "ICPLB miss: %d\nICPLB supervisor miss: %d\n",
+		     nr_icplb_miss, nr_icplb_supv_miss);
+	p += sprintf(p, "DCPLB miss: %d\nDCPLB protection fault:%d\n",
+		     nr_dcplb_miss, nr_dcplb_prot);
+	p += sprintf(p, "CPLB flushes: %d\n",
+		     nr_cplb_flush);
+
+	return p - buf;
+}
+
+static int cplbinfo_read_proc(char *page, char **start, off_t off,
+			      int count, int *eof, void *data)
+{
+	int len;
+
+	len = cplbinfo_proc_output(page);
+	if (len <= off + count)
+		*eof = 1;
+	*start = page + off;
+	len -= off;
+	if (len > count)
+		len = count;
+	if (len < 0)
+		len = 0;
+	return len;
+}
+
+static int __init cplbinfo_init(void)
+{
+	struct proc_dir_entry *entry;
+
+	entry = create_proc_entry("cplbinfo", 0, NULL);
+	if (!entry)
+		return -ENOMEM;
+
+	entry->read_proc = cplbinfo_read_proc;
+	entry->data = NULL;
+
+	return 0;
+}
+
+static void __exit cplbinfo_exit(void)
+{
+	remove_proc_entry("cplbinfo", NULL);
+}
+
+module_init(cplbinfo_init);
+module_exit(cplbinfo_exit);
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
new file mode 100644
index 000000000000..e2e2b5079f5b
--- /dev/null
+++ b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
@@ -0,0 +1,91 @@
+/*
+ * Blackfin CPLB initialization
+ *
+ *               Copyright 2004-2007 Analog Devices Inc.
+ *
+ * Bugs:         Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include <linux/module.h>
+
+#include <asm/blackfin.h>
+#include <asm/cplb.h>
+#include <asm/cplbinit.h>
+
+struct cplb_entry icplb_tbl[MAX_CPLBS];
+struct cplb_entry dcplb_tbl[MAX_CPLBS];
+
+int first_switched_icplb, first_switched_dcplb;
+int first_mask_dcplb;
+
+void __init generate_cpl_tables(void)
+{
+	int i_d, i_i;
+	unsigned long addr;
+	unsigned long d_data, i_data;
+	unsigned long d_cache = 0, i_cache = 0;
+
+#ifdef CONFIG_BFIN_ICACHE
+	i_cache = CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND;
+#endif
+
+#ifdef CONFIG_BFIN_DCACHE
+	d_cache = CPLB_L1_CHBL;
+#ifdef CONFIG_BLKFIN_WT
+	d_cache |= CPLB_L1_AOW | CPLB_WT;
+#endif
+#endif
+	i_d = i_i = 0;
+
+	/* Set up the zero page.  */
+	dcplb_tbl[i_d].addr = 0;
+	dcplb_tbl[i_d++].data = SDRAM_OOPS | PAGE_SIZE_1KB;
+
+#if 0
+	icplb_tbl[i_i].addr = 0;
+	icplb_tbl[i_i++].data = i_cache | CPLB_USER_RD | PAGE_SIZE_4KB;
+#endif
+
+	/* Cover kernel memory with 4M pages.  */
+	addr = 0;
+	d_data = d_cache | CPLB_SUPV_WR | CPLB_VALID | PAGE_SIZE_4MB | CPLB_DIRTY;
+	i_data = i_cache | CPLB_VALID | CPLB_PORTPRIO | PAGE_SIZE_4MB;
+
+	for (; addr < memory_start; addr += 4 * 1024 * 1024) {
+		dcplb_tbl[i_d].addr = addr;
+		dcplb_tbl[i_d++].data = d_data;
+		icplb_tbl[i_i].addr = addr;
+		icplb_tbl[i_i++].data = i_data | (addr == 0 ? CPLB_USER_RD : 0);
+	}
+
+	/* Cover L1 memory.  One 4M area for code and data each is enough.  */
+#if L1_DATA_A_LENGTH > 0 || L1_DATA_B_LENGTH > 0
+	dcplb_tbl[i_d].addr = L1_DATA_A_START;
+	dcplb_tbl[i_d++].data = L1_DMEMORY | PAGE_SIZE_4MB;
+#endif
+	icplb_tbl[i_i].addr = L1_CODE_START;
+	icplb_tbl[i_i++].data = L1_IMEMORY | PAGE_SIZE_4MB;
+
+	first_mask_dcplb = i_d;
+	first_switched_dcplb = i_d + (1 << page_mask_order);
+	first_switched_icplb = i_i;
+
+	while (i_d < MAX_CPLBS)
+		dcplb_tbl[i_d++].data = 0;
+	while (i_i < MAX_CPLBS)
+		icplb_tbl[i_i++].data = 0;
+}
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
new file mode 100644
index 000000000000..c426a22f9907
--- /dev/null
+++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
@@ -0,0 +1,338 @@
+/*
+ *               Blackfin CPLB exception handling.
+ *               Copyright 2004-2007 Analog Devices Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include <linux/module.h>
+#include <linux/mm.h>
+
+#include <asm/blackfin.h>
+#include <asm/cplbinit.h>
+#include <asm/mmu_context.h>
+
+#ifdef CONFIG_BFIN_ICACHE
+
+#define FAULT_RW	(1 << 16)
+#define FAULT_USERSUPV	(1 << 17)
+
+int page_mask_nelts;
+int page_mask_order;
+unsigned long *current_rwx_mask;
+
+int nr_dcplb_miss, nr_icplb_miss, nr_icplb_supv_miss, nr_dcplb_prot;
+int nr_cplb_flush;
+
+static inline void disable_dcplb(void)
+{
+	unsigned long ctrl;
+	SSYNC();
+	ctrl = bfin_read_DMEM_CONTROL();
+	ctrl &= ~ENDCPLB;
+	bfin_write_DMEM_CONTROL(ctrl);
+	SSYNC();
+}
+
+static inline void enable_dcplb(void)
+{
+	unsigned long ctrl;
+	SSYNC();
+	ctrl = bfin_read_DMEM_CONTROL();
+	ctrl |= ENDCPLB;
+	bfin_write_DMEM_CONTROL(ctrl);
+	SSYNC();
+}
+
+static inline void disable_icplb(void)
+{
+	unsigned long ctrl;
+	SSYNC();
+	ctrl = bfin_read_IMEM_CONTROL();
+	ctrl &= ~ENICPLB;
+	bfin_write_IMEM_CONTROL(ctrl);
+	SSYNC();
+}
+
+static inline void enable_icplb(void)
+{
+	unsigned long ctrl;
+	SSYNC();
+	ctrl = bfin_read_IMEM_CONTROL();
+	ctrl |= ENICPLB;
+	bfin_write_IMEM_CONTROL(ctrl);
+	SSYNC();
+}
+
+/*
+ * Given the contents of the status register, return the index of the
+ * CPLB that caused the fault.
+ */
+static inline int faulting_cplb_index(int status)
+{
+	int signbits = __builtin_bfin_norm_fr1x32(status & 0xFFFF);
+	return 30 - signbits;
+}
+
+/*
+ * Given the contents of the status register and the DCPLB_DATA contents,
+ * return true if a write access should be permitted.
+ */
+static inline int write_permitted(int status, unsigned long data)
+{
+	if (status & FAULT_USERSUPV)
+		return !!(data & CPLB_SUPV_WR);
+	else
+		return !!(data & CPLB_USER_WR);
+}
+
+/* Counters to implement round-robin replacement.  */
+static int icplb_rr_index, dcplb_rr_index;
+
+/*
+ * Find an ICPLB entry to be evicted and return its index.
+ */
+static int evict_one_icplb(void)
+{
+	int i;
+	for (i = first_switched_icplb; i < MAX_CPLBS; i++)
+		if ((icplb_tbl[i].data & CPLB_VALID) == 0)
+			return i;
+	i = first_switched_icplb + icplb_rr_index;
+	if (i >= MAX_CPLBS) {
+		i -= MAX_CPLBS - first_switched_icplb;
+		icplb_rr_index -= MAX_CPLBS - first_switched_icplb;
+	}
+	icplb_rr_index++;
+	return i;
+}
+
+static int evict_one_dcplb(void)
+{
+	int i;
+	for (i = first_switched_dcplb; i < MAX_CPLBS; i++)
+		if ((dcplb_tbl[i].data & CPLB_VALID) == 0)
+			return i;
+	i = first_switched_dcplb + dcplb_rr_index;
+	if (i >= MAX_CPLBS) {
+		i -= MAX_CPLBS - first_switched_dcplb;
+		dcplb_rr_index -= MAX_CPLBS - first_switched_dcplb;
+	}
+	dcplb_rr_index++;
+	return i;
+}
+
+static noinline int dcplb_miss(void)
+{
+	unsigned long addr = bfin_read_DCPLB_FAULT_ADDR();
+	int status = bfin_read_DCPLB_STATUS();
+	unsigned long *mask;
+	int idx;
+	unsigned long d_data;
+
+	nr_dcplb_miss++;
+	if (addr >= _ramend)
+		return CPLB_PROT_VIOL;
+
+	d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB;
+#ifdef CONFIG_BFIN_DCACHE
+	d_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND;
+#ifdef CONFIG_BLKFIN_WT
+	d_data |= CPLB_L1_AOW | CPLB_WT;
+#endif
+#endif
+	mask = current_rwx_mask;
+	if (mask) {
+		int page = addr >> PAGE_SHIFT;
+		int offs = page >> 5;
+		int bit = 1 << (page & 31);
+
+		if (mask[offs] & bit)
+			d_data |= CPLB_USER_RD;
+
+		mask += page_mask_nelts;
+		if (mask[offs] & bit)
+			d_data |= CPLB_USER_WR;
+	}
+
+	idx = evict_one_dcplb();
+
+	addr &= PAGE_MASK;
+	dcplb_tbl[idx].addr = addr;
+	dcplb_tbl[idx].data = d_data;
+
+	disable_dcplb();
+	bfin_write32(DCPLB_DATA0 + idx * 4, d_data);
+	bfin_write32(DCPLB_ADDR0 + idx * 4, addr);
+	enable_dcplb();
+
+	return 0;
+}
+
+static noinline int icplb_miss(void)
+{
+	unsigned long addr = bfin_read_ICPLB_FAULT_ADDR();
+	int status = bfin_read_ICPLB_STATUS();
+	int idx;
+	unsigned long i_data;
+
+	nr_icplb_miss++;
+	if (status & FAULT_USERSUPV)
+		nr_icplb_supv_miss++;
+
+	if (addr >= _ramend)
+		return CPLB_PROT_VIOL;
+
+	/*
+	 * First, try to find a CPLB that matches this address.  If we
+	 * find one, then the fact that we're in the miss handler means
+	 * that the instruction crosses a page boundary.
+	 */
+	for (idx = first_switched_icplb; idx < MAX_CPLBS; idx++) {
+		if (icplb_tbl[idx].data & CPLB_VALID) {
+			unsigned long this_addr = icplb_tbl[idx].addr;
+			if (this_addr <= addr && this_addr + PAGE_SIZE > addr) {
+				addr += PAGE_SIZE;
+				break;
+			}
+		}
+	}
+
+	i_data = CPLB_VALID | CPLB_PORTPRIO | PAGE_SIZE_4KB;
+#ifdef CONFIG_BFIN_ICACHE
+	i_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND;
+#endif
+
+	/*
+	 * Two cases to distinguish - a supervisor access must necessarily
+	 * be for a module page; we grant it unconditionally (could do better
+	 * here in the future).  Otherwise, check the x bitmap of the current
+	 * process.
+	 */
+	if (!(status & FAULT_USERSUPV)) {
+		unsigned long *mask = current_rwx_mask;
+
+		if (mask) {
+			int page = addr >> PAGE_SHIFT;
+			int offs = page >> 5;
+			int bit = 1 << (page & 31);
+
+			mask += 2 * page_mask_nelts;
+			if (mask[offs] & bit)
+				i_data |= CPLB_USER_RD;
+		}
+	}
+
+	idx = evict_one_icplb();
+	addr &= PAGE_MASK;
+	icplb_tbl[idx].addr = addr;
+	icplb_tbl[idx].data = i_data;
+
+	disable_icplb();
+	bfin_write32(ICPLB_DATA0 + idx * 4, i_data);
+	bfin_write32(ICPLB_ADDR0 + idx * 4, addr);
+	enable_icplb();
+
+	return 0;
+}
+
+static noinline int dcplb_protection_fault(void)
+{
+	unsigned long addr = bfin_read_DCPLB_FAULT_ADDR();
+	int status = bfin_read_DCPLB_STATUS();
+
+	nr_dcplb_prot++;
+
+	if (status & FAULT_RW) {
+		int idx = faulting_cplb_index(status);
+		unsigned long data = dcplb_tbl[idx].data;
+		if (!(data & CPLB_WT) && !(data & CPLB_DIRTY) &&
+		    write_permitted(status, data)) {
+			data |= CPLB_DIRTY;
+			dcplb_tbl[idx].data = data;
+			bfin_write32(DCPLB_DATA0 + idx * 4, data);
+			return 0;
+		}
+	}
+	return CPLB_PROT_VIOL;
+}
+
+int cplb_hdr(int seqstat, struct pt_regs *regs)
+{
+	int cause = seqstat & 0x3f;
+	switch (cause) {
+	case 0x23:
+		return dcplb_protection_fault();
+	case 0x2C:
+		return icplb_miss();
+	case 0x26:
+		return dcplb_miss();
+	default:
+	    return 1;
+		panic_cplb_error(seqstat, regs);
+	}
+}
+
+void flush_switched_cplbs(void)
+{
+	int i;
+
+	nr_cplb_flush++;
+
+	disable_icplb();
+	for (i = first_switched_icplb; i < MAX_CPLBS; i++) {
+		icplb_tbl[i].data = 0;
+		bfin_write32(ICPLB_DATA0 + i * 4, 0);
+	}
+	enable_icplb();
+
+	disable_dcplb();
+	for (i = first_mask_dcplb; i < MAX_CPLBS; i++) {
+		dcplb_tbl[i].data = 0;
+		bfin_write32(DCPLB_DATA0 + i * 4, 0);
+	}
+	enable_dcplb();
+}
+
+void set_mask_dcplbs(unsigned long *masks)
+{
+	int i;
+	unsigned long addr = (unsigned long)masks;
+	unsigned long d_data;
+	current_rwx_mask = masks;
+
+	if (!masks)
+		return;
+
+	d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB;
+#ifdef CONFIG_BFIN_DCACHE
+	d_data |= CPLB_L1_CHBL;
+#ifdef CONFIG_BLKFIN_WT
+	d_data |= CPLB_L1_AOW | CPLB_WT;
+#endif
+#endif
+
+	disable_dcplb();
+	for (i = first_mask_dcplb; i < first_switched_dcplb; i++) {
+		dcplb_tbl[i].addr = addr;
+		dcplb_tbl[i].data = d_data;
+		bfin_write32(DCPLB_DATA0 + i * 4, d_data);
+		bfin_write32(DCPLB_ADDR0 + i * 4, addr);
+		addr += PAGE_SIZE;
+	}
+	enable_dcplb();
+}
+
+#endif
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index a03c2dfff4a3..1a942a721d51 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -238,7 +238,12 @@ void __init setup_arch(char **cmdline_p)
 	memory_end = _ramend - DMA_UNCACHED_REGION;
 
 	_ramstart = (unsigned long)__bss_stop;
+#ifdef CONFIG_MPU
+	/* Round up to multiple of 4MB.  */
+	memory_start = (_ramstart + 0x3fffff) & ~0x3fffff;
+#else
 	memory_start = PAGE_ALIGN(_ramstart);
+#endif
 
 #if defined(CONFIG_MTD_UCLINUX)
 	/* generic memory mapped MTD driver */
@@ -307,6 +312,11 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_NOTICE "Warning: limiting memory to %liMB due to hardware anomaly 05000263\n", memory_end >> 20);
 #endif				/* ANOMALY_05000263 */
 
+#ifdef CONFIG_MPU
+	page_mask_nelts = ((_ramend >> PAGE_SHIFT) + 31) / 32;
+	page_mask_order = get_order(3 * page_mask_nelts * sizeof(long));
+#endif
+
 #if !defined(CONFIG_MTD_UCLINUX)
 	memory_end -= SIZE_4K; /*In case there is no valid CPLB behind memory_end make sure we don't get to close*/
 #endif
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 58f7ad617992..c2e81a10c47b 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -95,24 +95,43 @@ ENTRY(_ex_workaround_261)
 	R6 = 0x26;	/* Data CPLB Miss */
 	cc = R6 == R7;
 	if cc jump _ex_dcplb_miss (BP);
+	R6 = 0x23;	/* Data CPLB Miss */
+	cc = R6 == R7;
+	if cc jump _ex_dcplb_viol (BP);
 	/* Handle 0x23 Data CPLB Protection Violation
 	 * and Data CPLB Multiple Hits - Linux Trap Zero
 	 */
 	jump _ex_trap_c;
 ENDPROC(_ex_workaround_261)
 
+#else
+#ifdef CONFIG_MPU
+#define _ex_dviol _ex_dcplb_viol
 #else
 #define _ex_dviol _ex_trap_c
+#endif
 #define _ex_dmiss _ex_dcplb_miss
 #define _ex_dmult _ex_trap_c
 #endif
 
+
+ENTRY(_ex_dcplb_viol)
 ENTRY(_ex_dcplb_miss)
 ENTRY(_ex_icplb_miss)
 	(R7:6,P5:4) = [sp++];
 	ASTAT = [sp++];
 	SAVE_ALL_SYS
+#ifdef CONFIG_MPU
+	R0 = SEQSTAT;
+	R1 = SP;
+	sp += -12;
+	call _cplb_hdr;
+	sp += 12;
+	CC = R0 == 0;
+	IF !CC JUMP _handle_bad_cplb;
+#else
 	call __cplb_hdr;
+#endif
 	DEBUG_START_HWTRACE(p5, r7)
 	RESTORE_ALL_SYS
 	SP = EX_SCRATCH_REG;
diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c
index e97ea8fc8dc4..9f007cace6e6 100644
--- a/arch/blackfin/mm/init.c
+++ b/arch/blackfin/mm/init.c
@@ -184,13 +184,15 @@ static __init void free_init_pages(const char *what, unsigned long begin, unsign
 #ifdef CONFIG_BLK_DEV_INITRD
 void __init free_initrd_mem(unsigned long start, unsigned long end)
 {
+#ifndef CONFIG_MPU
 	free_init_pages("initrd memory", start, end);
+#endif
 }
 #endif
 
 void __init free_initmem(void)
 {
-#ifdef CONFIG_RAMKERNEL
+#if defined CONFIG_RAMKERNEL && !defined CONFIG_MPU
 	free_init_pages("unused kernel memory",
 			(unsigned long)(&__init_begin),
 			(unsigned long)(&__init_end));
diff --git a/include/asm-blackfin/cplb-mpu.h b/include/asm-blackfin/cplb-mpu.h
new file mode 100644
index 000000000000..75c67b99d607
--- /dev/null
+++ b/include/asm-blackfin/cplb-mpu.h
@@ -0,0 +1,61 @@
+/*
+ * File:         include/asm-blackfin/cplbinit.h
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description:
+ *
+ * Modified:
+ *               Copyright 2004-2006 Analog Devices Inc.
+ *
+ * Bugs:         Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef __ASM_BFIN_CPLB_MPU_H
+#define __ASM_BFIN_CPLB_MPU_H
+
+struct cplb_entry {
+	unsigned long data, addr;
+};
+
+struct mem_region {
+	unsigned long start, end;
+	unsigned long dcplb_data;
+	unsigned long icplb_data;
+};
+
+extern struct cplb_entry dcplb_tbl[MAX_CPLBS];
+extern struct cplb_entry icplb_tbl[MAX_CPLBS];
+extern int first_switched_icplb;
+extern int first_mask_dcplb;
+extern int first_switched_dcplb;
+
+extern int nr_dcplb_miss, nr_icplb_miss, nr_icplb_supv_miss, nr_dcplb_prot;
+extern int nr_cplb_flush;
+
+extern int page_mask_order;
+extern int page_mask_nelts;
+
+extern unsigned long *current_rwx_mask;
+
+extern void flush_switched_cplbs(void);
+extern void set_mask_dcplbs(unsigned long *);
+
+extern void __noreturn panic_cplb_error(int seqstat, struct pt_regs *);
+
+#endif /* __ASM_BFIN_CPLB_MPU_H */
diff --git a/include/asm-blackfin/cplb.h b/include/asm-blackfin/cplb.h
index 06828d77a58f..654375c2b746 100644
--- a/include/asm-blackfin/cplb.h
+++ b/include/asm-blackfin/cplb.h
@@ -65,7 +65,11 @@
 #define SIZE_1M 0x00100000      /* 1M */
 #define SIZE_4M 0x00400000      /* 4M */
 
+#ifdef CONFIG_MPU
+#define MAX_CPLBS 16
+#else
 #define MAX_CPLBS (16 * 2)
+#endif
 
 #define ASYNC_MEMORY_CPLB_COVERAGE	((ASYNC_BANK0_SIZE + ASYNC_BANK1_SIZE + \
 				 ASYNC_BANK2_SIZE + ASYNC_BANK3_SIZE) / SIZE_4M)
diff --git a/include/asm-blackfin/cplbinit.h b/include/asm-blackfin/cplbinit.h
index c4d0596e8e9f..0eb1c1b685a7 100644
--- a/include/asm-blackfin/cplbinit.h
+++ b/include/asm-blackfin/cplbinit.h
@@ -33,6 +33,12 @@
 #include <asm/blackfin.h>
 #include <asm/cplb.h>
 
+#ifdef CONFIG_MPU
+
+#include <asm/cplb-mpu.h>
+
+#else
+
 #define INITIAL_T 0x1
 #define SWITCH_T  0x2
 #define I_CPLB    0x4
@@ -79,6 +85,8 @@ extern u_long ipdt_swapcount_table[];
 extern u_long dpdt_swapcount_table[];
 #endif
 
+#endif /* CONFIG_MPU */
+
 extern unsigned long reserved_mem_dcache_on;
 extern unsigned long reserved_mem_icache_on;
 
diff --git a/include/asm-blackfin/mmu.h b/include/asm-blackfin/mmu.h
index 11d52f1167d0..757e43906ed4 100644
--- a/include/asm-blackfin/mmu.h
+++ b/include/asm-blackfin/mmu.h
@@ -24,7 +24,9 @@ typedef struct {
 	unsigned long	exec_fdpic_loadmap;
 	unsigned long	interp_fdpic_loadmap;
 #endif
-
+#ifdef CONFIG_MPU
+	unsigned long *page_rwx_mask;
+#endif
 } mm_context_t;
 
 #endif
diff --git a/include/asm-blackfin/mmu_context.h b/include/asm-blackfin/mmu_context.h
index c5c71a6aaf19..b5eb67596ad5 100644
--- a/include/asm-blackfin/mmu_context.h
+++ b/include/asm-blackfin/mmu_context.h
@@ -30,9 +30,12 @@
 #ifndef __BLACKFIN_MMU_CONTEXT_H__
 #define __BLACKFIN_MMU_CONTEXT_H__
 
+#include <linux/gfp.h>
+#include <linux/sched.h>
 #include <asm/setup.h>
 #include <asm/page.h>
 #include <asm/pgalloc.h>
+#include <asm/cplbinit.h>
 
 extern void *current_l1_stack_save;
 extern int nr_l1stack_tasks;
@@ -50,6 +53,12 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
 static inline int
 init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 {
+#ifdef CONFIG_MPU
+	unsigned long p = __get_free_pages(GFP_KERNEL, page_mask_order);
+	mm->context.page_rwx_mask = (unsigned long *)p;
+	memset(mm->context.page_rwx_mask, 0,
+	       page_mask_nelts * 3 * sizeof(long));
+#endif
 	return 0;
 }
 
@@ -73,6 +82,11 @@ static inline void destroy_context(struct mm_struct *mm)
 		sram_free(tmp->addr);
 		kfree(tmp);
 	}
+#ifdef CONFIG_MPU
+	if (current_rwx_mask == mm->context.page_rwx_mask)
+		current_rwx_mask = NULL;
+	free_pages((unsigned long)mm->context.page_rwx_mask, page_mask_order);
+#endif
 }
 
 static inline unsigned long
@@ -106,9 +120,21 @@ activate_l1stack(struct mm_struct *mm, unsigned long sp_base)
 
 #define deactivate_mm(tsk,mm)	do { } while (0)
 
-static inline void activate_mm(struct mm_struct *prev_mm,
-			       struct mm_struct *next_mm)
+#define activate_mm(prev, next) switch_mm(prev, next, NULL)
+
+static inline void switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm,
+			     struct task_struct *tsk)
 {
+	if (prev_mm == next_mm)
+		return;
+#ifdef CONFIG_MPU
+	if (prev_mm->context.page_rwx_mask == current_rwx_mask) {
+		flush_switched_cplbs();
+		set_mask_dcplbs(next_mm->context.page_rwx_mask);
+	}
+#endif
+
+	/* L1 stack switching.  */
 	if (!next_mm->context.l1_stack_save)
 		return;
 	if (next_mm->context.l1_stack_save == current_l1_stack_save)
@@ -120,10 +146,36 @@ static inline void activate_mm(struct mm_struct *prev_mm,
 	memcpy(l1_stack_base, current_l1_stack_save, l1_stack_len);
 }
 
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
-			     struct task_struct *tsk)
+#ifdef CONFIG_MPU
+static inline void protect_page(struct mm_struct *mm, unsigned long addr,
+				unsigned long flags)
+{
+	unsigned long *mask = mm->context.page_rwx_mask;
+	unsigned long page = addr >> 12;
+	unsigned long idx = page >> 5;
+	unsigned long bit = 1 << (page & 31);
+
+	if (flags & VM_MAYREAD)
+		mask[idx] |= bit;
+	else
+		mask[idx] &= ~bit;
+	mask += page_mask_nelts;
+	if (flags & VM_MAYWRITE)
+		mask[idx] |= bit;
+	else
+		mask[idx] &= ~bit;
+	mask += page_mask_nelts;
+	if (flags & VM_MAYEXEC)
+		mask[idx] |= bit;
+	else
+		mask[idx] &= ~bit;
+}
+
+static inline void update_protections(struct mm_struct *mm)
 {
-	activate_mm(prev, next);
+	flush_switched_cplbs();
+	set_mask_dcplbs(mm->context.page_rwx_mask);
 }
+#endif
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From acbcd2631975cf6f0be5cd294cbfd12226cd9958 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Tue, 22 Jan 2008 18:36:20 +0800
Subject: [Blackfin] arch: Fix BUG gpio_direction_output API is not
 compatitable with GENERIC_GPIO API interface

signef-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/bfin_gpio.c                  | 55 +++++++++++++++++------
 arch/blackfin/mach-bf527/boards/ezkit.c           |  7 +--
 arch/blackfin/mach-bf537/boards/generic_board.c   |  6 +--
 arch/blackfin/mach-bf537/boards/pnav10.c          |  6 +--
 arch/blackfin/mach-bf537/boards/stamp.c           |  7 +--
 drivers/video/bf54x-lq043fb.c                     |  3 +-
 include/asm-blackfin/gpio.h                       | 12 ++---
 include/asm-blackfin/mach-bf527/bfin_serial_5xx.h |  2 +-
 include/asm-blackfin/mach-bf533/bfin_serial_5xx.h |  2 +-
 include/asm-blackfin/mach-bf537/bfin_serial_5xx.h |  2 +-
 include/asm-blackfin/mach-bf548/bfin_serial_5xx.h |  2 +-
 include/asm-blackfin/mach-bf561/bfin_serial_5xx.h |  2 +-
 12 files changed, 58 insertions(+), 48 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index ffee36910288..7312011a4211 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -229,6 +229,11 @@ inline int check_gpio(unsigned short gpio)
 }
 #endif
 
+void gpio_error(unsigned gpio)
+{
+	printk(KERN_ERR "bfin-gpio: GPIO %d wasn't requested!\n", gpio);
+}
+
 static void set_label(unsigned short ident, const char *label)
 {
 
@@ -1034,7 +1039,7 @@ EXPORT_SYMBOL(peripheral_free_list);
 * MODIFICATION HISTORY :
 **************************************************************/
 
-int gpio_request(unsigned short gpio, const char *label)
+int gpio_request(unsigned gpio, const char *label)
 {
 	unsigned long flags;
 
@@ -1081,7 +1086,7 @@ int gpio_request(unsigned short gpio, const char *label)
 }
 EXPORT_SYMBOL(gpio_request);
 
-void gpio_free(unsigned short gpio)
+void gpio_free(unsigned gpio)
 {
 	unsigned long flags;
 
@@ -1091,7 +1096,7 @@ void gpio_free(unsigned short gpio)
 	local_irq_save(flags);
 
 	if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) {
-		printk(KERN_ERR "bfin-gpio: GPIO %d wasn't reserved!\n", gpio);
+		gpio_error(gpio);
 		dump_stack();
 		local_irq_restore(flags);
 		return;
@@ -1107,34 +1112,47 @@ void gpio_free(unsigned short gpio)
 }
 EXPORT_SYMBOL(gpio_free);
 
+
 #ifdef BF548_FAMILY
-void gpio_direction_input(unsigned short gpio)
+int gpio_direction_input(unsigned gpio)
 {
 	unsigned long flags;
 
-	BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+	if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
+		gpio_error(gpio);
+		return -EINVAL;
+	}
+
 
 	local_irq_save(flags);
 	gpio_array[gpio_bank(gpio)]->port_dir_clear = gpio_bit(gpio);
 	gpio_array[gpio_bank(gpio)]->port_inen |= gpio_bit(gpio);
 	local_irq_restore(flags);
+
+	return 0;
 }
 EXPORT_SYMBOL(gpio_direction_input);
 
-void gpio_direction_output(unsigned short gpio)
+int gpio_direction_output(unsigned gpio, int value)
 {
 	unsigned long flags;
 
-	BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+	if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
+		gpio_error(gpio);
+		return -EINVAL;
+	}
 
 	local_irq_save(flags);
 	gpio_array[gpio_bank(gpio)]->port_inen &= ~gpio_bit(gpio);
+	gpio_set_value(gpio, value);
 	gpio_array[gpio_bank(gpio)]->port_dir_set = gpio_bit(gpio);
 	local_irq_restore(flags);
+
+	return 0;
 }
 EXPORT_SYMBOL(gpio_direction_output);
 
-void gpio_set_value(unsigned short gpio, unsigned short arg)
+void gpio_set_value(unsigned gpio, int arg)
 {
 	if (arg)
 		gpio_array[gpio_bank(gpio)]->port_set = gpio_bit(gpio);
@@ -1144,7 +1162,7 @@ void gpio_set_value(unsigned short gpio, unsigned short arg)
 }
 EXPORT_SYMBOL(gpio_set_value);
 
-unsigned short gpio_get_value(unsigned short gpio)
+int gpio_get_value(unsigned gpio)
 {
 	return (1 & (gpio_array[gpio_bank(gpio)]->port_data >> gpio_sub_n(gpio)));
 }
@@ -1152,31 +1170,42 @@ EXPORT_SYMBOL(gpio_get_value);
 
 #else
 
-void gpio_direction_input(unsigned short gpio)
+int gpio_direction_input(unsigned gpio)
 {
 	unsigned long flags;
 
-	BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+	if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
+		gpio_error(gpio);
+		return -EINVAL;
+	}
 
 	local_irq_save(flags);
 	gpio_bankb[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio);
 	gpio_bankb[gpio_bank(gpio)]->inen |= gpio_bit(gpio);
 	AWA_DUMMY_READ(inen);
 	local_irq_restore(flags);
+
+	return 0;
 }
 EXPORT_SYMBOL(gpio_direction_input);
 
-void gpio_direction_output(unsigned short gpio)
+int gpio_direction_output(unsigned gpio, int value)
 {
 	unsigned long flags;
 
-	BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+	if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
+		gpio_error(gpio);
+		return -EINVAL;
+	}
 
 	local_irq_save(flags);
 	gpio_bankb[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio);
+	gpio_set_value(gpio, value);
 	gpio_bankb[gpio_bank(gpio)]->dir |= gpio_bit(gpio);
 	AWA_DUMMY_READ(dir);
 	local_irq_restore(flags);
+
+	return 0;
 }
 EXPORT_SYMBOL(gpio_direction_output);
 
diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index bc256811a5e3..6d70aae4cc9b 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -317,12 +317,7 @@ static struct resource sl811_hcd_resources[] = {
 void sl811_port_power(struct device *dev, int is_on)
 {
 	gpio_request(CONFIG_USB_SL811_BFIN_GPIO_VBUS, "usb:SL811_VBUS");
-	gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS);
-
-	if (is_on)
-		gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 1);
-	else
-		gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 0);
+	gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS, is_on);
 }
 #endif
 
diff --git a/arch/blackfin/mach-bf537/boards/generic_board.c b/arch/blackfin/mach-bf537/boards/generic_board.c
index 1c97219a2ab5..3225b1588398 100644
--- a/arch/blackfin/mach-bf537/boards/generic_board.c
+++ b/arch/blackfin/mach-bf537/boards/generic_board.c
@@ -205,12 +205,8 @@ static struct resource sl811_hcd_resources[] = {
 void sl811_port_power(struct device *dev, int is_on)
 {
 	gpio_request(CONFIG_USB_SL811_BFIN_GPIO_VBUS, "usb:SL811_VBUS");
-	gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS);
+	gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS, is_on);
 
-	if (is_on)
-		gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 1);
-	else
-		gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 0);
 }
 #endif
 
diff --git a/arch/blackfin/mach-bf537/boards/pnav10.c b/arch/blackfin/mach-bf537/boards/pnav10.c
index 23e10c7dab5b..4c4870590bd8 100644
--- a/arch/blackfin/mach-bf537/boards/pnav10.c
+++ b/arch/blackfin/mach-bf537/boards/pnav10.c
@@ -134,12 +134,8 @@ static struct resource sl811_hcd_resources[] = {
 void sl811_port_power(struct device *dev, int is_on)
 {
 	gpio_request(CONFIG_USB_SL811_BFIN_GPIO_VBUS, "usb:SL811_VBUS");
-	gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS);
+	gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS, is_on);
 
-	if (is_on)
-		gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 1);
-	else
-		gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 0);
 }
 #endif
 
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 3e0ad04d8d75..37759ac7df2a 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -250,12 +250,7 @@ static struct resource sl811_hcd_resources[] = {
 void sl811_port_power(struct device *dev, int is_on)
 {
 	gpio_request(CONFIG_USB_SL811_BFIN_GPIO_VBUS, "usb:SL811_VBUS");
-	gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS);
-
-	if (is_on)
-		gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 1);
-	else
-		gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 0);
+	gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS, is_on);
 }
 #endif
 
diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c
index 1b7e54de0d76..c8e7427a0bc8 100644
--- a/drivers/video/bf54x-lq043fb.c
+++ b/drivers/video/bf54x-lq043fb.c
@@ -264,8 +264,7 @@ static int request_ports(struct bfin_bf54xfb_info *fbi)
 		}
 	}
 
-	gpio_direction_output(disp);
-	gpio_set_value(disp, 1);
+	gpio_direction_output(disp, 1);
 
 	return 0;
 }
diff --git a/include/asm-blackfin/gpio.h b/include/asm-blackfin/gpio.h
index 33ce98ef7e0f..7bba9b17654e 100644
--- a/include/asm-blackfin/gpio.h
+++ b/include/asm-blackfin/gpio.h
@@ -426,19 +426,19 @@ struct gpio_port_s {
 * MODIFICATION HISTORY :
 **************************************************************/
 
-int gpio_request(unsigned short, const char *);
-void gpio_free(unsigned short);
+int gpio_request(unsigned, const char *);
+void gpio_free(unsigned);
 
-void gpio_set_value(unsigned short gpio, unsigned short arg);
-unsigned short gpio_get_value(unsigned short gpio);
+void gpio_set_value(unsigned gpio, int arg);
+int gpio_get_value(unsigned gpio);
 
 #ifndef BF548_FAMILY
 #define gpio_get_value(gpio) 		get_gpio_data(gpio)
 #define gpio_set_value(gpio, value)	set_gpio_data(gpio, value)
 #endif
 
-void gpio_direction_input(unsigned short gpio);
-void gpio_direction_output(unsigned short gpio);
+int gpio_direction_input(unsigned gpio);
+int gpio_direction_output(unsigned gpio, int value);
 
 #include <asm-generic/gpio.h>		/* cansleep wrappers */
 #include <asm/irq.h>
diff --git a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
index 0b867e6a76c4..15dbc21eed8b 100644
--- a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
@@ -146,7 +146,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart)
 
 	if (uart->rts_pin >= 0) {
 		gpio_request(uart->rts_pin, DRIVER_NAME);
-		gpio_direction_output(uart->rts_pin);
+		gpio_direction_output(uart->rts_pin, 0);
 	}
 #endif
 }
diff --git a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
index 69b9f8e120e9..7871d4313f49 100644
--- a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
@@ -111,7 +111,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart)
 	}
 	if (uart->rts_pin >= 0) {
 		gpio_request(uart->rts_pin, DRIVER_NAME);
-		gpio_direction_input(uart->rts_pin);
+		gpio_direction_input(uart->rts_pin, 0);
 	}
 #endif
 }
diff --git a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
index 6fb328f5186a..86e45c379838 100644
--- a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
@@ -146,7 +146,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart)
 
 	if (uart->rts_pin >= 0) {
 		gpio_request(uart->rts_pin, DRIVER_NAME);
-		gpio_direction_output(uart->rts_pin);
+		gpio_direction_output(uart->rts_pin, 0);
 	}
 #endif
 }
diff --git a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h
index f21a1620e6bd..3770aa38ee9f 100644
--- a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h
@@ -186,7 +186,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart)
 
 	if (uart->rts_pin >= 0) {
 		gpio_request(uart->rts_pin, DRIVER_NAME);
-		gpio_direction_output(uart->rts_pin);
+		gpio_direction_output(uart->rts_pin, 0);
 	}
 #endif
 }
diff --git a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
index 69b9f8e120e9..7871d4313f49 100644
--- a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
@@ -111,7 +111,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart)
 	}
 	if (uart->rts_pin >= 0) {
 		gpio_request(uart->rts_pin, DRIVER_NAME);
-		gpio_direction_input(uart->rts_pin);
+		gpio_direction_input(uart->rts_pin, 0);
 	}
 #endif
 }
-- 
cgit v1.2.3-59-g8ed1b


From a2c8cfef6abb33ee49d80c58391ebfc4f94221ef Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Tue, 22 Jan 2008 17:20:10 +0800
Subject: [Blackfin] arch: GPIO API cleanup and anomaly update

 - Add anomaly workaround for bfin_gpio_reset_spi0_ssel1
 - Fix style
 - Update copyright
 - Remove BUG_ON checks for functions intended to be used only by arch
   support. GPIO users should only access using the generic GPIO API
 - Make all GPIO identifier unsigned int

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/bfin_gpio.c | 63 ++++++++++++++++-------------------
 include/asm-blackfin/gpio.h      | 72 ++++++++++++++++++++--------------------
 2 files changed, 64 insertions(+), 71 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 7312011a4211..6bbe0a2fccb8 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -7,7 +7,7 @@
  * Description:  GPIO Abstraction Layer
  *
  * Modified:
- *               Copyright 2007 Analog Devices Inc.
+ *               Copyright 2008 Analog Devices Inc.
  *
  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  *
@@ -137,7 +137,6 @@ static unsigned short *port_fer[gpio_bank(MAX_BLACKFIN_GPIOS)] = {
 	(unsigned short *) PORTG_FER,
 	(unsigned short *) PORTH_FER,
 };
-
 #endif
 
 #ifdef BF527_FAMILY
@@ -211,7 +210,7 @@ static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PROG0_INT
 #endif /* CONFIG_PM */
 
 #if defined(BF548_FAMILY)
-inline int check_gpio(unsigned short gpio)
+inline int check_gpio(unsigned gpio)
 {
 	if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15
 	    || gpio == GPIO_PH14 || gpio == GPIO_PH15
@@ -221,7 +220,7 @@ inline int check_gpio(unsigned short gpio)
 	return 0;
 }
 #else
-inline int check_gpio(unsigned short gpio)
+inline int check_gpio(unsigned gpio)
 {
 	if (gpio >= MAX_BLACKFIN_GPIOS)
 		return -EINVAL;
@@ -236,7 +235,6 @@ void gpio_error(unsigned gpio)
 
 static void set_label(unsigned short ident, const char *label)
 {
-
 	if (label && str_ident) {
 		strncpy(str_ident[ident].name, label,
 			 RESOURCE_LABEL_SIZE);
@@ -267,7 +265,7 @@ static int cmp_label(unsigned short ident, const char *label)
 }
 
 #if defined(BF527_FAMILY) || defined(BF537_FAMILY)
-static void port_setup(unsigned short gpio, unsigned short usage)
+static void port_setup(unsigned gpio, unsigned short usage)
 {
 	if (!check_gpio(gpio)) {
 		if (usage == GPIO_USAGE)
@@ -278,7 +276,7 @@ static void port_setup(unsigned short gpio, unsigned short usage)
 	}
 }
 #elif defined(BF548_FAMILY)
-static void port_setup(unsigned short gpio, unsigned short usage)
+static void port_setup(unsigned gpio, unsigned short usage)
 {
 	if (usage == GPIO_USAGE)
 		gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio);
@@ -399,7 +397,7 @@ inline void portmux_setup(unsigned short portno, unsigned short function)
 #endif
 
 #ifndef BF548_FAMILY
-static void default_gpio(unsigned short gpio)
+static void default_gpio(unsigned gpio)
 {
 	unsigned short bank, bitmask;
 	unsigned long flags;
@@ -419,7 +417,6 @@ static void default_gpio(unsigned short gpio)
 	gpio_bankb[bank]->edge &= ~bitmask;
 	AWA_DUMMY_READ(edge);
 	local_irq_restore(flags);
-
 }
 #else
 # define default_gpio(...)  do { } while (0)
@@ -457,10 +454,9 @@ arch_initcall(bfin_gpio_init);
 /* Set a specific bit */
 
 #define SET_GPIO(name) \
-void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \
+void set_gpio_ ## name(unsigned gpio, unsigned short arg) \
 { \
 	unsigned long flags; \
-	BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); \
 	local_irq_save(flags); \
 	if (arg) \
 		gpio_bankb[gpio_bank(gpio)]->name |= gpio_bit(gpio); \
@@ -480,10 +476,9 @@ SET_GPIO(both)
 
 #if ANOMALY_05000311 || ANOMALY_05000323
 #define SET_GPIO_SC(name) \
-void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \
+void set_gpio_ ## name(unsigned gpio, unsigned short arg) \
 { \
 	unsigned long flags; \
-	BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); \
 	local_irq_save(flags); \
 	if (arg) \
 		gpio_bankb[gpio_bank(gpio)]->name ## _set = gpio_bit(gpio); \
@@ -495,9 +490,8 @@ void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \
 EXPORT_SYMBOL(set_gpio_ ## name);
 #else
 #define SET_GPIO_SC(name) \
-void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \
+void set_gpio_ ## name(unsigned gpio, unsigned short arg) \
 { \
-	BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); \
 	if (arg) \
 		gpio_bankb[gpio_bank(gpio)]->name ## _set = gpio_bit(gpio); \
 	else \
@@ -511,19 +505,17 @@ SET_GPIO_SC(maskb)
 SET_GPIO_SC(data)
 
 #if ANOMALY_05000311 || ANOMALY_05000323
-void set_gpio_toggle(unsigned short gpio)
+void set_gpio_toggle(unsigned gpio)
 {
 	unsigned long flags;
-	BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
 	local_irq_save(flags);
 	gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio);
 	AWA_DUMMY_READ(toggle);
 	local_irq_restore(flags);
 }
 #else
-void set_gpio_toggle(unsigned short gpio)
+void set_gpio_toggle(unsigned gpio)
 {
-	BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
 	gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio);
 }
 #endif
@@ -534,7 +526,7 @@ EXPORT_SYMBOL(set_gpio_toggle);
 
 #if ANOMALY_05000311 || ANOMALY_05000323
 #define SET_GPIO_P(name) \
-void set_gpiop_ ## name(unsigned short gpio, unsigned short arg) \
+void set_gpiop_ ## name(unsigned gpio, unsigned short arg) \
 { \
 	unsigned long flags; \
 	local_irq_save(flags); \
@@ -545,7 +537,7 @@ void set_gpiop_ ## name(unsigned short gpio, unsigned short arg) \
 EXPORT_SYMBOL(set_gpiop_ ## name);
 #else
 #define SET_GPIO_P(name) \
-void set_gpiop_ ## name(unsigned short gpio, unsigned short arg) \
+void set_gpiop_ ## name(unsigned gpio, unsigned short arg) \
 { \
 	gpio_bankb[gpio_bank(gpio)]->name = arg; \
 } \
@@ -561,11 +553,10 @@ SET_GPIO_P(both)
 SET_GPIO_P(maska)
 SET_GPIO_P(maskb)
 
-
 /* Get a specific bit */
 #if ANOMALY_05000311 || ANOMALY_05000323
 #define GET_GPIO(name) \
-unsigned short get_gpio_ ## name(unsigned short gpio) \
+unsigned short get_gpio_ ## name(unsigned gpio) \
 { \
 	unsigned long flags; \
 	unsigned short ret; \
@@ -578,7 +569,7 @@ unsigned short get_gpio_ ## name(unsigned short gpio) \
 EXPORT_SYMBOL(get_gpio_ ## name);
 #else
 #define GET_GPIO(name) \
-unsigned short get_gpio_ ## name(unsigned short gpio) \
+unsigned short get_gpio_ ## name(unsigned gpio) \
 { \
 	return (0x01 & (gpio_bankb[gpio_bank(gpio)]->name >> gpio_sub_n(gpio))); \
 } \
@@ -598,7 +589,7 @@ GET_GPIO(maskb)
 
 #if ANOMALY_05000311 || ANOMALY_05000323
 #define GET_GPIO_P(name) \
-unsigned short get_gpiop_ ## name(unsigned short gpio) \
+unsigned short get_gpiop_ ## name(unsigned gpio) \
 { \
 	unsigned long flags; \
 	unsigned short ret; \
@@ -611,7 +602,7 @@ unsigned short get_gpiop_ ## name(unsigned short gpio) \
 EXPORT_SYMBOL(get_gpiop_ ## name);
 #else
 #define GET_GPIO_P(name) \
-unsigned short get_gpiop_ ## name(unsigned short gpio) \
+unsigned short get_gpiop_ ## name(unsigned gpio) \
 { \
 	return (gpio_bankb[gpio_bank(gpio)]->name);\
 } \
@@ -648,7 +639,7 @@ GET_GPIO_P(maskb)
 *************************************************************
 * MODIFICATION HISTORY :
 **************************************************************/
-int gpio_pm_wakeup_request(unsigned short gpio, unsigned char type)
+int gpio_pm_wakeup_request(unsigned gpio, unsigned char type)
 {
 	unsigned long flags;
 
@@ -656,7 +647,6 @@ int gpio_pm_wakeup_request(unsigned short gpio, unsigned char type)
 		return -EINVAL;
 
 	local_irq_save(flags);
-
 	wakeup_map[gpio_bank(gpio)] |= gpio_bit(gpio);
 	wakeup_flags_map[gpio] = type;
 	local_irq_restore(flags);
@@ -665,7 +655,7 @@ int gpio_pm_wakeup_request(unsigned short gpio, unsigned char type)
 }
 EXPORT_SYMBOL(gpio_pm_wakeup_request);
 
-void gpio_pm_wakeup_free(unsigned short gpio)
+void gpio_pm_wakeup_free(unsigned gpio)
 {
 	unsigned long flags;
 
@@ -680,7 +670,7 @@ void gpio_pm_wakeup_free(unsigned short gpio)
 }
 EXPORT_SYMBOL(gpio_pm_wakeup_free);
 
-static int bfin_gpio_wakeup_type(unsigned short gpio, unsigned char type)
+static int bfin_gpio_wakeup_type(unsigned gpio, unsigned char type)
 {
 	port_setup(gpio, GPIO_USAGE);
 	set_gpio_dir(gpio, 0);
@@ -789,7 +779,7 @@ void gpio_pm_restore(void)
 #endif
 #else /* BF548_FAMILY */
 
-unsigned short get_gpio_dir(unsigned short gpio)
+unsigned short get_gpio_dir(unsigned gpio)
 {
 	return (0x01 & (gpio_array[gpio_bank(gpio)]->port_dir_clear >> gpio_sub_n(gpio)));
 }
@@ -1123,7 +1113,6 @@ int gpio_direction_input(unsigned gpio)
 		return -EINVAL;
 	}
 
-
 	local_irq_save(flags);
 	gpio_array[gpio_bank(gpio)]->port_dir_clear = gpio_bit(gpio);
 	gpio_array[gpio_bank(gpio)]->port_inen |= gpio_bit(gpio);
@@ -1158,7 +1147,6 @@ void gpio_set_value(unsigned gpio, int arg)
 		gpio_array[gpio_bank(gpio)]->port_set = gpio_bit(gpio);
 	else
 		gpio_array[gpio_bank(gpio)]->port_clear = gpio_bit(gpio);
-
 }
 EXPORT_SYMBOL(gpio_set_value);
 
@@ -1200,7 +1188,12 @@ int gpio_direction_output(unsigned gpio, int value)
 
 	local_irq_save(flags);
 	gpio_bankb[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio);
-	gpio_set_value(gpio, value);
+
+	if (value)
+		gpio_bankb[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
+	else
+		gpio_bankb[gpio_bank(gpio)]->data_clear = gpio_bit(gpio);
+
 	gpio_bankb[gpio_bank(gpio)]->dir |= gpio_bit(gpio);
 	AWA_DUMMY_READ(dir);
 	local_irq_restore(flags);
@@ -1225,6 +1218,7 @@ void bfin_gpio_reset_spi0_ssel1(void)
 
 	port_setup(gpio, GPIO_USAGE);
 	gpio_bankb[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
+	AWA_DUMMY_READ(data_set);
 	udelay(1);
 }
 
@@ -1259,6 +1253,5 @@ static __init int gpio_register_proc(void)
 		proc_gpio->read_proc = gpio_proc_read;
 	return proc_gpio != NULL;
 }
-
 __initcall(gpio_register_proc);
 #endif
diff --git a/include/asm-blackfin/gpio.h b/include/asm-blackfin/gpio.h
index 7bba9b17654e..d0426c108262 100644
--- a/include/asm-blackfin/gpio.h
+++ b/include/asm-blackfin/gpio.h
@@ -7,7 +7,7 @@
  * Description:
  *
  * Modified:
- *               Copyright 2004-2006 Analog Devices Inc.
+ *               Copyright 2004-2008 Analog Devices Inc.
  *
  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  *
@@ -304,39 +304,39 @@
 **************************************************************/
 
 #ifndef BF548_FAMILY
-void set_gpio_dir(unsigned short, unsigned short);
-void set_gpio_inen(unsigned short, unsigned short);
-void set_gpio_polar(unsigned short, unsigned short);
-void set_gpio_edge(unsigned short, unsigned short);
-void set_gpio_both(unsigned short, unsigned short);
-void set_gpio_data(unsigned short, unsigned short);
-void set_gpio_maska(unsigned short, unsigned short);
-void set_gpio_maskb(unsigned short, unsigned short);
-void set_gpio_toggle(unsigned short);
-void set_gpiop_dir(unsigned short, unsigned short);
-void set_gpiop_inen(unsigned short, unsigned short);
-void set_gpiop_polar(unsigned short, unsigned short);
-void set_gpiop_edge(unsigned short, unsigned short);
-void set_gpiop_both(unsigned short, unsigned short);
-void set_gpiop_data(unsigned short, unsigned short);
-void set_gpiop_maska(unsigned short, unsigned short);
-void set_gpiop_maskb(unsigned short, unsigned short);
-unsigned short get_gpio_dir(unsigned short);
-unsigned short get_gpio_inen(unsigned short);
-unsigned short get_gpio_polar(unsigned short);
-unsigned short get_gpio_edge(unsigned short);
-unsigned short get_gpio_both(unsigned short);
-unsigned short get_gpio_maska(unsigned short);
-unsigned short get_gpio_maskb(unsigned short);
-unsigned short get_gpio_data(unsigned short);
-unsigned short get_gpiop_dir(unsigned short);
-unsigned short get_gpiop_inen(unsigned short);
-unsigned short get_gpiop_polar(unsigned short);
-unsigned short get_gpiop_edge(unsigned short);
-unsigned short get_gpiop_both(unsigned short);
-unsigned short get_gpiop_maska(unsigned short);
-unsigned short get_gpiop_maskb(unsigned short);
-unsigned short get_gpiop_data(unsigned short);
+void set_gpio_dir(unsigned, unsigned short);
+void set_gpio_inen(unsigned, unsigned short);
+void set_gpio_polar(unsigned, unsigned short);
+void set_gpio_edge(unsigned, unsigned short);
+void set_gpio_both(unsigned, unsigned short);
+void set_gpio_data(unsigned, unsigned short);
+void set_gpio_maska(unsigned, unsigned short);
+void set_gpio_maskb(unsigned, unsigned short);
+void set_gpio_toggle(unsigned);
+void set_gpiop_dir(unsigned, unsigned short);
+void set_gpiop_inen(unsigned, unsigned short);
+void set_gpiop_polar(unsigned, unsigned short);
+void set_gpiop_edge(unsigned, unsigned short);
+void set_gpiop_both(unsigned, unsigned short);
+void set_gpiop_data(unsigned, unsigned short);
+void set_gpiop_maska(unsigned, unsigned short);
+void set_gpiop_maskb(unsigned, unsigned short);
+unsigned short get_gpio_dir(unsigned);
+unsigned short get_gpio_inen(unsigned);
+unsigned short get_gpio_polar(unsigned);
+unsigned short get_gpio_edge(unsigned);
+unsigned short get_gpio_both(unsigned);
+unsigned short get_gpio_maska(unsigned);
+unsigned short get_gpio_maskb(unsigned);
+unsigned short get_gpio_data(unsigned);
+unsigned short get_gpiop_dir(unsigned);
+unsigned short get_gpiop_inen(unsigned);
+unsigned short get_gpiop_polar(unsigned);
+unsigned short get_gpiop_edge(unsigned);
+unsigned short get_gpiop_both(unsigned);
+unsigned short get_gpiop_maska(unsigned);
+unsigned short get_gpiop_maskb(unsigned);
+unsigned short get_gpiop_data(unsigned);
 
 struct gpio_port_t {
 	unsigned short data;
@@ -382,8 +382,8 @@ struct gpio_port_t {
 #define PM_WAKE_LOW	0x8
 #define PM_WAKE_BOTH_EDGES	(PM_WAKE_RISING | PM_WAKE_FALLING)
 
-int gpio_pm_wakeup_request(unsigned short gpio, unsigned char type);
-void gpio_pm_wakeup_free(unsigned short gpio);
+int gpio_pm_wakeup_request(unsigned gpio, unsigned char type);
+void gpio_pm_wakeup_free(unsigned gpio);
 unsigned int gpio_pm_setup(void);
 void gpio_pm_restore(void);
 
-- 
cgit v1.2.3-59-g8ed1b


From a628a8bcd8a6daea6096fe781fc36cae4ac1ed48 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Tue, 22 Jan 2008 17:29:16 +0800
Subject: [Blackfin] arch: Update copyright date

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf527/boards/ezkit.c         | 2 +-
 arch/blackfin/mach-bf537/boards/generic_board.c | 2 +-
 arch/blackfin/mach-bf537/boards/pnav10.c        | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 6d70aae4cc9b..f8c411a24af7 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -8,7 +8,7 @@
  *
  * Modified:
  *               Copyright 2005 National ICT Australia (NICTA)
- *               Copyright 2004-2007 Analog Devices Inc.
+ *               Copyright 2004-2008 Analog Devices Inc.
  *
  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  *
diff --git a/arch/blackfin/mach-bf537/boards/generic_board.c b/arch/blackfin/mach-bf537/boards/generic_board.c
index 3225b1588398..3e52f3f5bd58 100644
--- a/arch/blackfin/mach-bf537/boards/generic_board.c
+++ b/arch/blackfin/mach-bf537/boards/generic_board.c
@@ -8,7 +8,7 @@
  *
  * Modified:
  *               Copyright 2005 National ICT Australia (NICTA)
- *               Copyright 2004-2007 Analog Devices Inc.
+ *               Copyright 2004-2008 Analog Devices Inc.
  *
  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  *
diff --git a/arch/blackfin/mach-bf537/boards/pnav10.c b/arch/blackfin/mach-bf537/boards/pnav10.c
index 4c4870590bd8..509a8a236fd0 100644
--- a/arch/blackfin/mach-bf537/boards/pnav10.c
+++ b/arch/blackfin/mach-bf537/boards/pnav10.c
@@ -8,7 +8,7 @@
  *
  * Modified:
  *               Copyright 2005 National ICT Australia (NICTA)
- *               Copyright 2004-2006 Analog Devices Inc.
+ *               Copyright 2004-2008 Analog Devices Inc.
  *
  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  *
-- 
cgit v1.2.3-59-g8ed1b


From 444ad82bc3eaa554be40d22dc248e58aeefd54d9 Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Tue, 22 Jan 2008 18:38:02 +0800
Subject: [Blackfin] arch: Add proper SW System Reset delay sequence

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/reboot.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
index 06501a594dda..483f93dfc1b5 100644
--- a/arch/blackfin/kernel/reboot.c
+++ b/arch/blackfin/kernel/reboot.c
@@ -19,6 +19,11 @@
 #define SYSCR_VAL 	0x10
 #endif
 
+/*
+ * Delay min 5 SCLK cycles using worst case CCLK/SCLK ratio (15)
+ */
+#define SWRST_DELAY	(5 * 15)
+
 /* A system soft reset makes external memory unusable
  * so force this function into L1.
  */
@@ -34,11 +39,15 @@ void bfin_reset(void)
 	while (1) {
 		/* initiate system soft reset with magic 0x7 */
 		bfin_write_SWRST(0x7);
-		bfin_read_SWRST();
-		asm("ssync;");
+
+		/* Wait for System reset to actually reset, needs to be 5 SCLKs, */
+		/* Assume CCLK / SCLK ratio is worst case (15), and use 5*15     */
+
+		asm("LSETUP(.Lfoo,.Lfoo) LC0 = %0\n .Lfoo: NOP;\n"
+		 : : "a" (SWRST_DELAY) : "LC0", "LT0", "LB0");
+
 		/* clear system soft reset */
 		bfin_write_SWRST(0);
-		bfin_read_SWRST();
 		asm("ssync;");
 		/* issue core reset */
 		asm("raise 1");
-- 
cgit v1.2.3-59-g8ed1b


From 03c5732855300f05aac718ca770c2bb05e1fd48b Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Tue, 22 Jan 2008 18:45:10 +0800
Subject: [Blackfin] arch: Fix bug Only RTC interrupt can wake up deeper sleep
 core.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/Kconfig | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 6b96d7d21aea..ecb356ed8db8 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -923,10 +923,10 @@ endchoice
 config PM_WAKEUP_SIC_IWR
 	hex "Wakeup Events (SIC_IWR)"
 	depends on PM_WAKEUP_GPIO_BY_SIC_IWR
-	default 0x80000000 if (BF537 || BF536 || BF534)
-	default 0x100000 if (BF533 || BF532 || BF531)
-	default 0x800000 if (BF54x)
-	default 0x800000 if (BF52x)
+	default 0x8 if (BF537 || BF536 || BF534)
+	default 0x80 if (BF533 || BF532 || BF531)
+	default 0x80 if (BF54x)
+	default 0x80 if (BF52x)
 
 config PM_WAKEUP_GPIO_NUMBER
 	int "Wakeup GPIO number"
-- 
cgit v1.2.3-59-g8ed1b


From 96a5c6f9bef027e1187b2f168bb3e08ef21d0b6f Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Tue, 22 Jan 2008 19:23:50 +0800
Subject: [Blackfin] arch: Fix bug - kernel build with Debug option enabled
 fails to boot up

writes to I/DMEM_CONTROL must be followed by SSYNC

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/cplb-nompu/cacheinit.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/cplb-nompu/cacheinit.c b/arch/blackfin/kernel/cplb-nompu/cacheinit.c
index 62cbba7364b0..8a18399f6072 100644
--- a/arch/blackfin/kernel/cplb-nompu/cacheinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cacheinit.c
@@ -42,6 +42,7 @@ void bfin_icache_init(void)
 	ctrl = bfin_read_IMEM_CONTROL();
 	ctrl |= IMC | ENICPLB;
 	bfin_write_IMEM_CONTROL(ctrl);
+	SSYNC();
 }
 #endif
 
@@ -63,5 +64,6 @@ void bfin_dcache_init(void)
 	ctrl = bfin_read_DMEM_CONTROL();
 	ctrl |= DMEM_CNTR;
 	bfin_write_DMEM_CONTROL(ctrl);
+	SSYNC();
 }
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From de8c43f2fca9bb06f3ee87b38a61d5d9966ce221 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <michael.frysinger@analog.com>
Date: Thu, 24 Jan 2008 17:14:04 +0800
Subject: [Blackfin] arch: use common flash driver to setup partitions rather
 than the bf5xx-flash driver

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/Kconfig                   |  5 ----
 arch/blackfin/mach-bf533/boards/stamp.c | 52 +++++++++++++++++++++++++++++----
 arch/blackfin/mach-bf537/boards/stamp.c | 45 ++++++++++++++++++++++++++++
 arch/blackfin/mach-bf548/boards/ezkit.c | 40 +++++++++++++++++++++++++
 arch/blackfin/mach-bf561/boards/ezkit.c | 42 ++++++++++++++++++++++++++
 5 files changed, 174 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index ecb356ed8db8..fc7ca86ac8bf 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -268,11 +268,6 @@ config MEM_MT48LC32M16A2TG_75
 	depends on (BFIN527_EZKIT)
 	default y
 
-config BFIN_SHARED_FLASH_ENET
-	bool
-	depends on (BFIN533_STAMP)
-	default y
-
 source "arch/blackfin/mach-bf527/Kconfig"
 source "arch/blackfin/mach-bf533/Kconfig"
 source "arch/blackfin/mach-bf561/Kconfig"
diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c
index cd87df730ef5..ac52b040b336 100644
--- a/arch/blackfin/mach-bf533/boards/stamp.c
+++ b/arch/blackfin/mach-bf533/boards/stamp.c
@@ -32,6 +32,7 @@
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
 #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
@@ -108,6 +109,50 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
+static struct mtd_partition stamp_partitions[] = {
+	{
+		.name   = "Bootloader",
+		.size   = 0x20000,
+		.offset = 0,
+	}, {
+		.name   = "Kernel",
+		.size   = 0xE0000,
+		.offset = MTDPART_OFS_APPEND,
+	}, {
+		.name   = "RootFS",
+		.size   = MTDPART_SIZ_FULL,
+		.offset = MTDPART_OFS_APPEND,
+	}
+};
+
+static struct physmap_flash_data stamp_flash_data = {
+	.width    = 2,
+	.parts    = stamp_partitions,
+	.nr_parts = ARRAY_SIZE(stamp_partitions),
+};
+
+static struct resource stamp_flash_resource[] = {
+	{
+		.name  = "cfi_probe",
+		.start = 0x20000000,
+		.end   = 0x203fffff,
+		.flags = IORESOURCE_MEM,
+	}, {
+		.start = CONFIG_ENET_FLASH_PIN,
+		.flags = IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device stamp_flash_device = {
+	.name          = "BF5xx-Flash",
+	.id            = 0,
+	.dev = {
+		.platform_data = &stamp_flash_data,
+	},
+	.num_resources = ARRAY_SIZE(stamp_flash_resource),
+	.resource      = stamp_flash_resource,
+};
+
 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 /* all SPI peripherals info goes here */
 
@@ -457,6 +502,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 	&i2c_gpio_device,
 #endif
+	&stamp_flash_device,
 };
 
 static int __init stamp_init(void)
@@ -469,12 +515,10 @@ static int __init stamp_init(void)
 		return ret;
 
 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
-# if defined(CONFIG_BFIN_SHARED_FLASH_ENET)
 	/* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
 	bfin_write_FIO_DIR(bfin_read_FIO_DIR() | (1 << CONFIG_ENET_FLASH_PIN));
 	bfin_write_FIO_FLAG_S(1 << CONFIG_ENET_FLASH_PIN);
 	SSYNC();
-# endif
 #endif
 
 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
@@ -491,10 +535,8 @@ arch_initcall(stamp_init);
 
 void native_machine_restart(char *cmd)
 {
-#if defined(CONFIG_BFIN_SHARED_FLASH_ENET)
-# define BIT_TO_SET (1 << CONFIG_ENET_FLASH_PIN)
+#define BIT_TO_SET (1 << CONFIG_ENET_FLASH_PIN)
 	bfin_write_FIO_INEN(~BIT_TO_SET);
 	bfin_write_FIO_DIR(BIT_TO_SET);
 	bfin_write_FIO_FLAG_C(BIT_TO_SET);
-#endif
 }
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 37759ac7df2a..772541548b76 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -32,6 +32,7 @@
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
 #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
@@ -339,6 +340,49 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
+static struct mtd_partition stamp_partitions[] = {
+	{
+		.name       = "Bootloader",
+		.size       = 0x20000,
+		.offset     = 0,
+	}, {
+		.name       = "Kernel",
+		.size       = 0xE0000,
+		.offset     = MTDPART_OFS_APPEND,
+	}, {
+		.name       = "RootFS",
+		.size       = 0x400000 - 0x20000 - 0xE0000 - 0x10000,
+		.offset     = MTDPART_OFS_APPEND,
+	}, {
+		.name       = "MAC Address",
+		.size       = MTDPART_SIZ_FULL,
+		.offset     = 0x3F0000,
+		.mask_flags = MTD_WRITEABLE,
+	}
+};
+
+static struct physmap_flash_data stamp_flash_data = {
+	.width      = 2,
+	.parts      = stamp_partitions,
+	.nr_parts   = ARRAY_SIZE(stamp_partitions),
+};
+
+static struct resource stamp_flash_resource = {
+	.start = 0x20000000,
+	.end   = 0x203fffff,
+	.flags = IORESOURCE_MEM,
+};
+
+static struct platform_device stamp_flash_device = {
+	.name          = "physmap-flash",
+	.id            = 0,
+	.dev = {
+		.platform_data = &stamp_flash_data,
+	},
+	.num_resources = 1,
+	.resource      = &stamp_flash_resource,
+};
+
 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 /* all SPI peripherals info goes here */
 
@@ -761,6 +805,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 	&bfin_device_gpiokeys,
 #endif
+	&stamp_flash_device,
 };
 
 static int __init stamp_init(void)
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index 4ca3288fd07c..14860f04d1bd 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -32,6 +32,7 @@
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
 #include <linux/irq.h>
@@ -327,6 +328,44 @@ static struct platform_device bf54x_sdh_device = {
 };
 #endif
 
+static struct mtd_partition ezkit_partitions[] = {
+	{
+		.name       = "Bootloader",
+		.size       = 0x20000,
+		.offset     = 0,
+	}, {
+		.name       = "Kernel",
+		.size       = 0xE0000,
+		.offset     = MTDPART_OFS_APPEND,
+	}, {
+		.name       = "RootFS",
+		.size       = MTDPART_SIZ_FULL,
+		.offset     = MTDPART_OFS_APPEND,
+	}
+};
+
+static struct physmap_flash_data ezkit_flash_data = {
+	.width      = 2,
+	.parts      = ezkit_partitions,
+	.nr_parts   = ARRAY_SIZE(ezkit_partitions),
+};
+
+static struct resource ezkit_flash_resource = {
+	.start = 0x20000000,
+	.end   = 0x20ffffff,
+	.flags = IORESOURCE_MEM,
+};
+
+static struct platform_device ezkit_flash_device = {
+	.name          = "physmap-flash",
+	.id            = 0,
+	.dev = {
+		.platform_data = &ezkit_flash_data,
+	},
+	.num_resources = 1,
+	.resource      = &ezkit_flash_resource,
+};
+
 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 /* all SPI peripherals info goes here */
 #if defined(CONFIG_MTD_M25P80) \
@@ -589,6 +628,7 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 	&bfin_device_gpiokeys,
 #endif
+	&ezkit_flash_device,
 };
 
 static int __init stamp_init(void)
diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c
index 36114dd4ab3a..7601c3be1b5c 100644
--- a/arch/blackfin/mach-bf561/boards/ezkit.c
+++ b/arch/blackfin/mach-bf561/boards/ezkit.c
@@ -29,6 +29,9 @@
 
 #include <linux/device.h>
 #include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
 #include <linux/spi/spi.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
@@ -155,6 +158,44 @@ static struct platform_device bfin_uart_device = {
 };
 #endif
 
+static struct mtd_partition ezkit_partitions[] = {
+	{
+		.name       = "Bootloader",
+		.size       = 0x20000,
+		.offset     = 0,
+	}, {
+		.name       = "Kernel",
+		.size       = 0xE0000,
+		.offset     = MTDPART_OFS_APPEND,
+	}, {
+		.name       = "RootFS",
+		.size       = MTDPART_SIZ_FULL,
+		.offset     = MTDPART_OFS_APPEND,
+	}
+};
+
+static struct physmap_flash_data ezkit_flash_data = {
+	.width      = 2,
+	.parts      = ezkit_partitions,
+	.nr_parts   = ARRAY_SIZE(ezkit_partitions),
+};
+
+static struct resource ezkit_flash_resource = {
+	.start = 0x20000000,
+	.end   = 0x207fffff,
+	.flags = IORESOURCE_MEM,
+};
+
+static struct platform_device ezkit_flash_device = {
+	.name          = "physmap-flash",
+	.id            = 0,
+	.dev = {
+		.platform_data = &ezkit_flash_data,
+	},
+	.num_resources = 1,
+	.resource      = &ezkit_flash_resource,
+};
+
 #ifdef CONFIG_SPI_BFIN
 #if defined(CONFIG_SND_BLACKFIN_AD1836) \
 	|| defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
@@ -318,6 +359,7 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 	&i2c_gpio_device,
 #endif
+	&ezkit_flash_device,
 };
 
 static int __init ezkit_init(void)
-- 
cgit v1.2.3-59-g8ed1b


From ee7883b7466e721a72edacbcba2fe9cf449d82b2 Mon Sep 17 00:00:00 2001
From: Yi Li <yi.li@analog.com>
Date: Sun, 27 Jan 2008 19:56:17 +0800
Subject: [Blackfin] arch: fix bug kernel boot message: memory information is
 not reasonable

Some of the information in kernel boot message is not reasonable.
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3846

 - use _rambase as the start of kernel image.
   kernel is in the region [_rambase, _ramstart]
 - count in pages in per-cpu-page list as available memory
 - reserved memory now include: [0 - 4K] for bad pointer catching,
   memory reserved for abnormaly 05000263, memory reserved by kernel itself.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/setup.c |  1 +
 arch/blackfin/mm/init.c      | 29 +++++++++++++++++++++++------
 2 files changed, 24 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 1a942a721d51..462cae893757 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -238,6 +238,7 @@ void __init setup_arch(char **cmdline_p)
 	memory_end = _ramend - DMA_UNCACHED_REGION;
 
 	_ramstart = (unsigned long)__bss_stop;
+	_rambase = (unsigned long)_stext;
 #ifdef CONFIG_MPU
 	/* Round up to multiple of 4MB.  */
 	memory_start = (_ramstart + 0x3fffff) & ~0x3fffff;
diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c
index 9f007cace6e6..eb1a12ac9e33 100644
--- a/arch/blackfin/mm/init.c
+++ b/arch/blackfin/mm/init.c
@@ -128,8 +128,8 @@ void __init paging_init(void)
 void __init mem_init(void)
 {
 	unsigned int codek = 0, datak = 0, initk = 0;
+	unsigned int reservedpages = 0, freepages = 0;
 	unsigned long tmp;
-	unsigned int len = _ramend - _rambase;
 	unsigned long start_mem = memory_start;
 	unsigned long end_mem = memory_end;
 
@@ -138,19 +138,36 @@ void __init mem_init(void)
 
 	start_mem = PAGE_ALIGN(start_mem);
 	max_mapnr = num_physpages = MAP_NR(high_memory);
-	printk(KERN_INFO "Physical pages: %lx\n", num_physpages);
+	printk(KERN_INFO "Kernel managed physical pages: %lu\n",
+		num_physpages);
 
 	/* This will put all memory onto the freelists. */
 	totalram_pages = free_all_bootmem();
 
+	reservedpages = 0;
+	for (tmp = 0; tmp < max_mapnr; tmp++)
+		if (PageReserved(pfn_to_page(tmp)))
+			reservedpages++;
+	freepages =  max_mapnr - reservedpages;
+
+	/* do not count in kernel image between _rambase and _ramstart */
+	reservedpages -= (_ramstart - _rambase) >> PAGE_SHIFT;
+#if (defined(CONFIG_BFIN_ICACHE) && ANOMALY_05000263)
+	reservedpages += (_ramend - memory_end - DMA_UNCACHED_REGION) >>
+				PAGE_SHIFT;
+#endif
+
 	codek = (_etext - _stext) >> 10;
-	datak = (__bss_stop - __bss_start) >> 10;
 	initk = (__init_end - __init_begin) >> 10;
+	datak = ((_ramstart - _rambase) >> 10) - codek - initk;
 
-	tmp = nr_free_pages() << PAGE_SHIFT;
 	printk(KERN_INFO
-	     "Memory available: %luk/%uk RAM, (%uk init code, %uk kernel code, %uk data, %uk dma)\n",
-	     tmp >> 10, len >> 10, initk, codek, datak, DMA_UNCACHED_REGION >> 10);
+	     "Memory available: %luk/%luk RAM, "
+		"(%uk init code, %uk kernel code, "
+		"%uk data, %uk dma, %uk reserved)\n",
+		(unsigned long) freepages << (PAGE_SHIFT-10), _ramend >> 10,
+		initk, codek, datak, DMA_UNCACHED_REGION >> 10,
+		(reservedpages << (PAGE_SHIFT-10)));
 
 	/* Initialize the blackfin L1 Memory. */
 	l1sram_init();
-- 
cgit v1.2.3-59-g8ed1b


From fc97551db9e4e9402ff2b5c94be8267b2e5f32f4 Mon Sep 17 00:00:00 2001
From: Bernd Schmidt <bernd.schmidt@analog.com>
Date: Sun, 27 Jan 2008 19:56:43 +0800
Subject: [Blackfin] arch: Add the semtimedop syscall.  Upstream uClibc doesn't
 compile without it.

Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-common/entry.S | 1 +
 include/asm-blackfin/unistd.h     | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index c2e81a10c47b..56ff51bc8c21 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -1381,6 +1381,7 @@ ENTRY(_sys_call_table)
 	.long _sys_set_robust_list
 	.long _sys_get_robust_list	/* 355 */
 	.long _sys_fallocate
+	.long _sys_semtimedop
 	.rept NR_syscalls-(.-_sys_call_table)/4
 	.long _sys_ni_syscall
 	.endr
diff --git a/include/asm-blackfin/unistd.h b/include/asm-blackfin/unistd.h
index 07ffe8b718c5..e98167358d26 100644
--- a/include/asm-blackfin/unistd.h
+++ b/include/asm-blackfin/unistd.h
@@ -369,8 +369,9 @@
 #define __NR_set_robust_list	354
 #define __NR_get_robust_list	355
 #define __NR_fallocate		356
+#define __NR_semtimedop		357
 
-#define __NR_syscall		357
+#define __NR_syscall		358
 #define NR_syscalls		__NR_syscall
 
 /* Old optional stuff no one actually uses */
-- 
cgit v1.2.3-59-g8ed1b


From 89e12654312dddbbdbf17b5adc95b22cb672f947 Mon Sep 17 00:00:00 2001
From: Sebastian Siewior <sebastian@breakpoint.cc>
Date: Wed, 17 Oct 2007 23:18:57 +0800
Subject: [CRYPTO] aes: Move common defines into a header file

This three defines are used in all AES related hardware.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/s390/crypto/aes_s390.c  |  7 +------
 arch/x86/crypto/aes_32.c     |  4 +---
 arch/x86/crypto/aes_64.c     |  6 +-----
 crypto/aes_generic.c         |  6 +-----
 drivers/crypto/geode-aes.c   |  1 +
 drivers/crypto/padlock-aes.c |  4 +---
 include/crypto/aes.h         | 15 +++++++++++++++
 7 files changed, 21 insertions(+), 22 deletions(-)
 create mode 100644 include/crypto/aes.h

(limited to 'arch')

diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index 512669691ad0..812511bbb540 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -16,17 +16,12 @@
  *
  */
 
+#include <crypto/aes.h>
 #include <crypto/algapi.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include "crypt_s390.h"
 
-#define AES_MIN_KEY_SIZE	16
-#define AES_MAX_KEY_SIZE	32
-
-/* data block size for all key lengths */
-#define AES_BLOCK_SIZE		16
-
 #define AES_KEYLEN_128		1
 #define AES_KEYLEN_192		2
 #define AES_KEYLEN_256		4
diff --git a/arch/x86/crypto/aes_32.c b/arch/x86/crypto/aes_32.c
index 49aad9397f10..9b0ab50394b0 100644
--- a/arch/x86/crypto/aes_32.c
+++ b/arch/x86/crypto/aes_32.c
@@ -38,6 +38,7 @@
  */
 
 #include <asm/byteorder.h>
+#include <crypto/aes.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -48,9 +49,6 @@
 asmlinkage void aes_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 asmlinkage void aes_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 
-#define AES_MIN_KEY_SIZE	16
-#define AES_MAX_KEY_SIZE	32
-#define AES_BLOCK_SIZE		16
 #define AES_KS_LENGTH		4 * AES_BLOCK_SIZE
 #define RC_LENGTH		29
 
diff --git a/arch/x86/crypto/aes_64.c b/arch/x86/crypto/aes_64.c
index 5cdb13ea5cc2..0b38a4cd2ce1 100644
--- a/arch/x86/crypto/aes_64.c
+++ b/arch/x86/crypto/aes_64.c
@@ -54,6 +54,7 @@
 */
 
 #include <asm/byteorder.h>
+#include <crypto/aes.h>
 #include <linux/bitops.h>
 #include <linux/crypto.h>
 #include <linux/errno.h>
@@ -61,11 +62,6 @@
 #include <linux/module.h>
 #include <linux/types.h>
 
-#define AES_MIN_KEY_SIZE	16
-#define AES_MAX_KEY_SIZE	32
-
-#define AES_BLOCK_SIZE		16
-
 /*
  * #define byte(x, nr) ((unsigned char)((x) >> (nr*8)))
  */
diff --git a/crypto/aes_generic.c b/crypto/aes_generic.c
index 9401dca85e87..6683260475f9 100644
--- a/crypto/aes_generic.c
+++ b/crypto/aes_generic.c
@@ -52,6 +52,7 @@
     s/RIJNDAEL(d_key)/D_KEY/g
 */
 
+#include <crypto/aes.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -59,11 +60,6 @@
 #include <linux/crypto.h>
 #include <asm/byteorder.h>
 
-#define AES_MIN_KEY_SIZE	16
-#define AES_MAX_KEY_SIZE	32
-
-#define AES_BLOCK_SIZE		16
-
 /*
  * #define byte(x, nr) ((unsigned char)((x) >> (nr*8))) 
  */
diff --git a/drivers/crypto/geode-aes.c b/drivers/crypto/geode-aes.c
index fa4c9904346f..5008a1cddffb 100644
--- a/drivers/crypto/geode-aes.c
+++ b/drivers/crypto/geode-aes.c
@@ -13,6 +13,7 @@
 #include <linux/crypto.h>
 #include <linux/spinlock.h>
 #include <crypto/algapi.h>
+#include <crypto/aes.h>
 
 #include <asm/io.h>
 #include <asm/delay.h>
diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c
index 5f7e71810489..c33334ac987e 100644
--- a/drivers/crypto/padlock-aes.c
+++ b/drivers/crypto/padlock-aes.c
@@ -44,6 +44,7 @@
  */
 
 #include <crypto/algapi.h>
+#include <crypto/aes.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -53,9 +54,6 @@
 #include <asm/byteorder.h>
 #include "padlock.h"
 
-#define AES_MIN_KEY_SIZE	16	/* in uint8_t units */
-#define AES_MAX_KEY_SIZE	32	/* ditto */
-#define AES_BLOCK_SIZE		16	/* ditto */
 #define AES_EXTENDED_KEY_SIZE	64	/* in uint32_t units */
 #define AES_EXTENDED_KEY_SIZE_B	(AES_EXTENDED_KEY_SIZE * sizeof(uint32_t))
 
diff --git a/include/crypto/aes.h b/include/crypto/aes.h
new file mode 100644
index 000000000000..9ff842fc6b89
--- /dev/null
+++ b/include/crypto/aes.h
@@ -0,0 +1,15 @@
+/*
+ * Common values for AES algorithms
+ */
+
+#ifndef _CRYPTO_AES_H
+#define _CRYPTO_AES_H
+
+#define AES_MIN_KEY_SIZE	16
+#define AES_MAX_KEY_SIZE	32
+#define AES_KEYSIZE_128		16
+#define AES_KEYSIZE_192		24
+#define AES_KEYSIZE_256		32
+#define AES_BLOCK_SIZE		16
+
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From 81190b321548bb0bf2d6e1f172695275b0fd1363 Mon Sep 17 00:00:00 2001
From: Sebastian Siewior <sebastian@breakpoint.cc>
Date: Thu, 8 Nov 2007 21:25:04 +0800
Subject: [CRYPTO] aes-x86-64: Remove setkey

The setkey() function can be shared with the generic algorithm.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/x86/crypto/aes-x86_64-asm_64.S |  68 ++++-----
 arch/x86/crypto/aes_64.c            | 282 +-----------------------------------
 crypto/Kconfig                      |   1 +
 3 files changed, 38 insertions(+), 313 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S
index 26b40de4d0b0..a120f526c3df 100644
--- a/arch/x86/crypto/aes-x86_64-asm_64.S
+++ b/arch/x86/crypto/aes-x86_64-asm_64.S
@@ -8,10 +8,10 @@
  * including this sentence is retained in full.
  */
 
-.extern aes_ft_tab
-.extern aes_it_tab
-.extern aes_fl_tab
-.extern aes_il_tab
+.extern crypto_ft_tab
+.extern crypto_it_tab
+.extern crypto_fl_tab
+.extern crypto_il_tab
 
 .text
 
@@ -56,13 +56,13 @@
 	.align	8;			\
 FUNC:	movq	r1,r2;			\
 	movq	r3,r4;			\
-	leaq	BASE+KEY+52(r8),r9;	\
+	leaq	BASE+KEY+48+4(r8),r9;	\
 	movq	r10,r11;		\
 	movl	(r7),r5 ## E;		\
 	movl	4(r7),r1 ## E;		\
 	movl	8(r7),r6 ## E;		\
 	movl	12(r7),r7 ## E;		\
-	movl	BASE(r8),r10 ## E;	\
+	movl	BASE+0(r8),r10 ## E;	\
 	xorl	-48(r9),r5 ## E;	\
 	xorl	-44(r9),r1 ## E;	\
 	xorl	-40(r9),r6 ## E;	\
@@ -154,37 +154,37 @@ FUNC:	movq	r1,r2;			\
 /* void aes_enc_blk(stuct crypto_tfm *tfm, u8 *out, const u8 *in) */
 
 	entry(aes_enc_blk,0,enc128,enc192)
-	encrypt_round(aes_ft_tab,-96)
-	encrypt_round(aes_ft_tab,-80)
-enc192:	encrypt_round(aes_ft_tab,-64)
-	encrypt_round(aes_ft_tab,-48)
-enc128:	encrypt_round(aes_ft_tab,-32)
-	encrypt_round(aes_ft_tab,-16)
-	encrypt_round(aes_ft_tab,  0)
-	encrypt_round(aes_ft_tab, 16)
-	encrypt_round(aes_ft_tab, 32)
-	encrypt_round(aes_ft_tab, 48)
-	encrypt_round(aes_ft_tab, 64)
-	encrypt_round(aes_ft_tab, 80)
-	encrypt_round(aes_ft_tab, 96)
-	encrypt_final(aes_fl_tab,112)
+	encrypt_round(crypto_ft_tab,-96)
+	encrypt_round(crypto_ft_tab,-80)
+enc192:	encrypt_round(crypto_ft_tab,-64)
+	encrypt_round(crypto_ft_tab,-48)
+enc128:	encrypt_round(crypto_ft_tab,-32)
+	encrypt_round(crypto_ft_tab,-16)
+	encrypt_round(crypto_ft_tab,  0)
+	encrypt_round(crypto_ft_tab, 16)
+	encrypt_round(crypto_ft_tab, 32)
+	encrypt_round(crypto_ft_tab, 48)
+	encrypt_round(crypto_ft_tab, 64)
+	encrypt_round(crypto_ft_tab, 80)
+	encrypt_round(crypto_ft_tab, 96)
+	encrypt_final(crypto_fl_tab,112)
 	return
 
 /* void aes_dec_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in) */
 
 	entry(aes_dec_blk,240,dec128,dec192)
-	decrypt_round(aes_it_tab,-96)
-	decrypt_round(aes_it_tab,-80)
-dec192:	decrypt_round(aes_it_tab,-64)
-	decrypt_round(aes_it_tab,-48)
-dec128:	decrypt_round(aes_it_tab,-32)
-	decrypt_round(aes_it_tab,-16)
-	decrypt_round(aes_it_tab,  0)
-	decrypt_round(aes_it_tab, 16)
-	decrypt_round(aes_it_tab, 32)
-	decrypt_round(aes_it_tab, 48)
-	decrypt_round(aes_it_tab, 64)
-	decrypt_round(aes_it_tab, 80)
-	decrypt_round(aes_it_tab, 96)
-	decrypt_final(aes_il_tab,112)
+	decrypt_round(crypto_it_tab,-96)
+	decrypt_round(crypto_it_tab,-80)
+dec192:	decrypt_round(crypto_it_tab,-64)
+	decrypt_round(crypto_it_tab,-48)
+dec128:	decrypt_round(crypto_it_tab,-32)
+	decrypt_round(crypto_it_tab,-16)
+	decrypt_round(crypto_it_tab,  0)
+	decrypt_round(crypto_it_tab, 16)
+	decrypt_round(crypto_it_tab, 32)
+	decrypt_round(crypto_it_tab, 48)
+	decrypt_round(crypto_it_tab, 64)
+	decrypt_round(crypto_it_tab, 80)
+	decrypt_round(crypto_it_tab, 96)
+	decrypt_final(crypto_il_tab,112)
 	return
diff --git a/arch/x86/crypto/aes_64.c b/arch/x86/crypto/aes_64.c
index 0b38a4cd2ce1..d7a41a97dd3f 100644
--- a/arch/x86/crypto/aes_64.c
+++ b/arch/x86/crypto/aes_64.c
@@ -1,284 +1,9 @@
 /*
- * Cryptographic API.
+ * Glue Code for AES Cipher Algorithm
  *
- * AES Cipher Algorithm.
- *
- * Based on Brian Gladman's code.
- *
- * Linux developers:
- *  Alexander Kjeldaas <astor@fast.no>
- *  Herbert Valerio Riedel <hvr@hvrlab.org>
- *  Kyle McMartin <kyle@debian.org>
- *  Adam J. Richter <adam@yggdrasil.com> (conversion to 2.5 API).
- *  Andreas Steinmetz <ast@domdv.de> (adapted to x86_64 assembler)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * ---------------------------------------------------------------------------
- * Copyright (c) 2002, Dr Brian Gladman <brg@gladman.me.uk>, Worcester, UK.
- * All rights reserved.
- *
- * LICENSE TERMS
- *
- * The free distribution and use of this software in both source and binary
- * form is allowed (with or without changes) provided that:
- *
- *   1. distributions of this source code include the above copyright
- *      notice, this list of conditions and the following disclaimer;
- *
- *   2. distributions in binary form include the above copyright
- *      notice, this list of conditions and the following disclaimer
- *      in the documentation and/or other associated materials;
- *
- *   3. the copyright holder's name is not used to endorse products
- *      built using this software without specific written permission.
- *
- * ALTERNATIVELY, provided that this notice is retained in full, this product
- * may be distributed under the terms of the GNU General Public License (GPL),
- * in which case the provisions of the GPL apply INSTEAD OF those given above.
- *
- * DISCLAIMER
- *
- * This software is provided 'as is' with no explicit or implied warranties
- * in respect of its properties, including, but not limited to, correctness
- * and/or fitness for purpose.
- * ---------------------------------------------------------------------------
  */
 
-/* Some changes from the Gladman version:
-    s/RIJNDAEL(e_key)/E_KEY/g
-    s/RIJNDAEL(d_key)/D_KEY/g
-*/
-
-#include <asm/byteorder.h>
 #include <crypto/aes.h>
-#include <linux/bitops.h>
-#include <linux/crypto.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-
-/*
- * #define byte(x, nr) ((unsigned char)((x) >> (nr*8)))
- */
-static inline u8 byte(const u32 x, const unsigned n)
-{
-	return x >> (n << 3);
-}
-
-struct aes_ctx
-{
-	u32 key_length;
-	u32 buf[120];
-};
-
-#define E_KEY (&ctx->buf[0])
-#define D_KEY (&ctx->buf[60])
-
-static u8 pow_tab[256] __initdata;
-static u8 log_tab[256] __initdata;
-static u8 sbx_tab[256] __initdata;
-static u8 isb_tab[256] __initdata;
-static u32 rco_tab[10];
-u32 aes_ft_tab[4][256];
-u32 aes_it_tab[4][256];
-
-u32 aes_fl_tab[4][256];
-u32 aes_il_tab[4][256];
-
-static inline u8 f_mult(u8 a, u8 b)
-{
-	u8 aa = log_tab[a], cc = aa + log_tab[b];
-
-	return pow_tab[cc + (cc < aa ? 1 : 0)];
-}
-
-#define ff_mult(a, b) (a && b ? f_mult(a, b) : 0)
-
-#define ls_box(x)				\
-	(aes_fl_tab[0][byte(x, 0)] ^		\
-	 aes_fl_tab[1][byte(x, 1)] ^		\
-	 aes_fl_tab[2][byte(x, 2)] ^		\
-	 aes_fl_tab[3][byte(x, 3)])
-
-static void __init gen_tabs(void)
-{
-	u32 i, t;
-	u8 p, q;
-
-	/* log and power tables for GF(2**8) finite field with
-	   0x011b as modular polynomial - the simplest primitive
-	   root is 0x03, used here to generate the tables */
-
-	for (i = 0, p = 1; i < 256; ++i) {
-		pow_tab[i] = (u8)p;
-		log_tab[p] = (u8)i;
-
-		p ^= (p << 1) ^ (p & 0x80 ? 0x01b : 0);
-	}
-
-	log_tab[1] = 0;
-
-	for (i = 0, p = 1; i < 10; ++i) {
-		rco_tab[i] = p;
-
-		p = (p << 1) ^ (p & 0x80 ? 0x01b : 0);
-	}
-
-	for (i = 0; i < 256; ++i) {
-		p = (i ? pow_tab[255 - log_tab[i]] : 0);
-		q = ((p >> 7) | (p << 1)) ^ ((p >> 6) | (p << 2));
-		p ^= 0x63 ^ q ^ ((q >> 6) | (q << 2));
-		sbx_tab[i] = p;
-		isb_tab[p] = (u8)i;
-	}
-
-	for (i = 0; i < 256; ++i) {
-		p = sbx_tab[i];
-
-		t = p;
-		aes_fl_tab[0][i] = t;
-		aes_fl_tab[1][i] = rol32(t, 8);
-		aes_fl_tab[2][i] = rol32(t, 16);
-		aes_fl_tab[3][i] = rol32(t, 24);
-
-		t = ((u32)ff_mult(2, p)) |
-		    ((u32)p << 8) |
-		    ((u32)p << 16) | ((u32)ff_mult(3, p) << 24);
-
-		aes_ft_tab[0][i] = t;
-		aes_ft_tab[1][i] = rol32(t, 8);
-		aes_ft_tab[2][i] = rol32(t, 16);
-		aes_ft_tab[3][i] = rol32(t, 24);
-
-		p = isb_tab[i];
-
-		t = p;
-		aes_il_tab[0][i] = t;
-		aes_il_tab[1][i] = rol32(t, 8);
-		aes_il_tab[2][i] = rol32(t, 16);
-		aes_il_tab[3][i] = rol32(t, 24);
-
-		t = ((u32)ff_mult(14, p)) |
-		    ((u32)ff_mult(9, p) << 8) |
-		    ((u32)ff_mult(13, p) << 16) |
-		    ((u32)ff_mult(11, p) << 24);
-
-		aes_it_tab[0][i] = t;
-		aes_it_tab[1][i] = rol32(t, 8);
-		aes_it_tab[2][i] = rol32(t, 16);
-		aes_it_tab[3][i] = rol32(t, 24);
-	}
-}
-
-#define star_x(x) (((x) & 0x7f7f7f7f) << 1) ^ ((((x) & 0x80808080) >> 7) * 0x1b)
-
-#define imix_col(y, x)			\
-	u    = star_x(x);		\
-	v    = star_x(u);		\
-	w    = star_x(v);		\
-	t    = w ^ (x);			\
-	(y)  = u ^ v ^ w;		\
-	(y) ^= ror32(u ^ t,  8) ^	\
-	       ror32(v ^ t, 16) ^	\
-	       ror32(t, 24)
-
-/* initialise the key schedule from the user supplied key */
-
-#define loop4(i)					\
-{							\
-	t = ror32(t,  8); t = ls_box(t) ^ rco_tab[i];	\
-	t ^= E_KEY[4 * i];     E_KEY[4 * i + 4] = t;	\
-	t ^= E_KEY[4 * i + 1]; E_KEY[4 * i + 5] = t;	\
-	t ^= E_KEY[4 * i + 2]; E_KEY[4 * i + 6] = t;	\
-	t ^= E_KEY[4 * i + 3]; E_KEY[4 * i + 7] = t;	\
-}
-
-#define loop6(i)					\
-{							\
-	t = ror32(t,  8); t = ls_box(t) ^ rco_tab[i];	\
-	t ^= E_KEY[6 * i];     E_KEY[6 * i + 6] = t;	\
-	t ^= E_KEY[6 * i + 1]; E_KEY[6 * i + 7] = t;	\
-	t ^= E_KEY[6 * i + 2]; E_KEY[6 * i + 8] = t;	\
-	t ^= E_KEY[6 * i + 3]; E_KEY[6 * i + 9] = t;	\
-	t ^= E_KEY[6 * i + 4]; E_KEY[6 * i + 10] = t;	\
-	t ^= E_KEY[6 * i + 5]; E_KEY[6 * i + 11] = t;	\
-}
-
-#define loop8(i)					\
-{							\
-	t = ror32(t,  8); ; t = ls_box(t) ^ rco_tab[i];	\
-	t ^= E_KEY[8 * i];     E_KEY[8 * i + 8] = t;	\
-	t ^= E_KEY[8 * i + 1]; E_KEY[8 * i + 9] = t;	\
-	t ^= E_KEY[8 * i + 2]; E_KEY[8 * i + 10] = t;	\
-	t ^= E_KEY[8 * i + 3]; E_KEY[8 * i + 11] = t;	\
-	t  = E_KEY[8 * i + 4] ^ ls_box(t);		\
-	E_KEY[8 * i + 12] = t;				\
-	t ^= E_KEY[8 * i + 5]; E_KEY[8 * i + 13] = t;	\
-	t ^= E_KEY[8 * i + 6]; E_KEY[8 * i + 14] = t;	\
-	t ^= E_KEY[8 * i + 7]; E_KEY[8 * i + 15] = t;	\
-}
-
-static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
-		       unsigned int key_len)
-{
-	struct aes_ctx *ctx = crypto_tfm_ctx(tfm);
-	const __le32 *key = (const __le32 *)in_key;
-	u32 *flags = &tfm->crt_flags;
-	u32 i, j, t, u, v, w;
-
-	if (key_len % 8) {
-		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
-		return -EINVAL;
-	}
-
-	ctx->key_length = key_len;
-
-	D_KEY[key_len + 24] = E_KEY[0] = le32_to_cpu(key[0]);
-	D_KEY[key_len + 25] = E_KEY[1] = le32_to_cpu(key[1]);
-	D_KEY[key_len + 26] = E_KEY[2] = le32_to_cpu(key[2]);
-	D_KEY[key_len + 27] = E_KEY[3] = le32_to_cpu(key[3]);
-
-	switch (key_len) {
-	case 16:
-		t = E_KEY[3];
-		for (i = 0; i < 10; ++i)
-			loop4(i);
-		break;
-
-	case 24:
-		E_KEY[4] = le32_to_cpu(key[4]);
-		t = E_KEY[5] = le32_to_cpu(key[5]);
-		for (i = 0; i < 8; ++i)
-			loop6 (i);
-		break;
-
-	case 32:
-		E_KEY[4] = le32_to_cpu(key[4]);
-		E_KEY[5] = le32_to_cpu(key[5]);
-		E_KEY[6] = le32_to_cpu(key[6]);
-		t = E_KEY[7] = le32_to_cpu(key[7]);
-		for (i = 0; i < 7; ++i)
-			loop8(i);
-		break;
-	}
-
-	D_KEY[0] = E_KEY[key_len + 24];
-	D_KEY[1] = E_KEY[key_len + 25];
-	D_KEY[2] = E_KEY[key_len + 26];
-	D_KEY[3] = E_KEY[key_len + 27];
-
-	for (i = 4; i < key_len + 24; ++i) {
-		j = key_len + 24 - (i & ~3) + (i & 3);
-		imix_col(D_KEY[j], E_KEY[i]);
-	}
-
-	return 0;
-}
 
 asmlinkage void aes_enc_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in);
 asmlinkage void aes_dec_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in);
@@ -299,14 +24,14 @@ static struct crypto_alg aes_alg = {
 	.cra_priority		=	200,
 	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
 	.cra_blocksize		=	AES_BLOCK_SIZE,
-	.cra_ctxsize		=	sizeof(struct aes_ctx),
+	.cra_ctxsize		=	sizeof(struct crypto_aes_ctx),
 	.cra_module		=	THIS_MODULE,
 	.cra_list		=	LIST_HEAD_INIT(aes_alg.cra_list),
 	.cra_u			=	{
 		.cipher = {
 			.cia_min_keysize	=	AES_MIN_KEY_SIZE,
 			.cia_max_keysize	=	AES_MAX_KEY_SIZE,
-			.cia_setkey	   	= 	aes_set_key,
+			.cia_setkey		=	crypto_aes_set_key,
 			.cia_encrypt	 	=	aes_encrypt,
 			.cia_decrypt	  	=	aes_decrypt
 		}
@@ -315,7 +40,6 @@ static struct crypto_alg aes_alg = {
 
 static int __init aes_init(void)
 {
-	gen_tabs();
 	return crypto_register_alg(&aes_alg);
 }
 
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 1f32071a3068..3f0bc0ed147d 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -350,6 +350,7 @@ config CRYPTO_AES_X86_64
 	tristate "AES cipher algorithms (x86_64)"
 	depends on (X86 || UML_X86) && 64BIT
 	select CRYPTO_ALGAPI
+	select CRYPTO_AES
 	help
 	  AES cipher algorithms (FIPS-197). AES uses the Rijndael 
 	  algorithm.
-- 
cgit v1.2.3-59-g8ed1b


From 5157dea8139cf0edc4834d528531e642c0d27e37 Mon Sep 17 00:00:00 2001
From: Sebastian Siewior <sebastian@breakpoint.cc>
Date: Sat, 10 Nov 2007 19:07:16 +0800
Subject: [CRYPTO] aes-i586: Remove setkey

The setkey() function can be shared with the generic algorithm.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/x86/crypto/aes-i586-asm_32.S |  89 ++++----
 arch/x86/crypto/aes_32.c          | 461 +-------------------------------------
 crypto/Kconfig                    |   1 +
 3 files changed, 47 insertions(+), 504 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/crypto/aes-i586-asm_32.S b/arch/x86/crypto/aes-i586-asm_32.S
index f942f0c8f630..1093bede3e0a 100644
--- a/arch/x86/crypto/aes-i586-asm_32.S
+++ b/arch/x86/crypto/aes-i586-asm_32.S
@@ -46,9 +46,9 @@
 #define in_blk 16
 
 /* offsets in crypto_tfm structure */
-#define ekey (crypto_tfm_ctx_offset + 0)
-#define nrnd (crypto_tfm_ctx_offset + 256)
-#define dkey (crypto_tfm_ctx_offset + 260)
+#define klen (crypto_tfm_ctx_offset + 0)
+#define ekey (crypto_tfm_ctx_offset + 4)
+#define dkey (crypto_tfm_ctx_offset + 244)
 
 // register mapping for encrypt and decrypt subroutines
 
@@ -221,8 +221,8 @@
 
 .global  aes_enc_blk
 
-.extern  ft_tab
-.extern  fl_tab
+.extern  crypto_ft_tab
+.extern  crypto_fl_tab
 
 .align 4
 
@@ -236,7 +236,7 @@ aes_enc_blk:
 1:	push    %ebx
 	mov     in_blk+4(%esp),%r2
 	push    %esi
-	mov     nrnd(%ebp),%r3   // number of rounds
+	mov     klen(%ebp),%r3   // key size
 	push    %edi
 #if ekey != 0
 	lea     ekey(%ebp),%ebp  // key pointer
@@ -255,26 +255,26 @@ aes_enc_blk:
 
 	sub     $8,%esp		// space for register saves on stack
 	add     $16,%ebp	// increment to next round key
-	cmp     $12,%r3
+	cmp     $24,%r3
 	jb      4f		// 10 rounds for 128-bit key
 	lea     32(%ebp),%ebp
 	je      3f		// 12 rounds for 192-bit key
 	lea     32(%ebp),%ebp
 
-2:	fwd_rnd1( -64(%ebp) ,ft_tab)	// 14 rounds for 256-bit key
-	fwd_rnd2( -48(%ebp) ,ft_tab)
-3:	fwd_rnd1( -32(%ebp) ,ft_tab)	// 12 rounds for 192-bit key
-	fwd_rnd2( -16(%ebp) ,ft_tab)
-4:	fwd_rnd1(    (%ebp) ,ft_tab)	// 10 rounds for 128-bit key
-	fwd_rnd2( +16(%ebp) ,ft_tab)
-	fwd_rnd1( +32(%ebp) ,ft_tab)
-	fwd_rnd2( +48(%ebp) ,ft_tab)
-	fwd_rnd1( +64(%ebp) ,ft_tab)
-	fwd_rnd2( +80(%ebp) ,ft_tab)
-	fwd_rnd1( +96(%ebp) ,ft_tab)
-	fwd_rnd2(+112(%ebp) ,ft_tab)
-	fwd_rnd1(+128(%ebp) ,ft_tab)
-	fwd_rnd2(+144(%ebp) ,fl_tab)	// last round uses a different table
+2:	fwd_rnd1( -64(%ebp), crypto_ft_tab)	// 14 rounds for 256-bit key
+	fwd_rnd2( -48(%ebp), crypto_ft_tab)
+3:	fwd_rnd1( -32(%ebp), crypto_ft_tab)	// 12 rounds for 192-bit key
+	fwd_rnd2( -16(%ebp), crypto_ft_tab)
+4:	fwd_rnd1(    (%ebp), crypto_ft_tab)	// 10 rounds for 128-bit key
+	fwd_rnd2( +16(%ebp), crypto_ft_tab)
+	fwd_rnd1( +32(%ebp), crypto_ft_tab)
+	fwd_rnd2( +48(%ebp), crypto_ft_tab)
+	fwd_rnd1( +64(%ebp), crypto_ft_tab)
+	fwd_rnd2( +80(%ebp), crypto_ft_tab)
+	fwd_rnd1( +96(%ebp), crypto_ft_tab)
+	fwd_rnd2(+112(%ebp), crypto_ft_tab)
+	fwd_rnd1(+128(%ebp), crypto_ft_tab)
+	fwd_rnd2(+144(%ebp), crypto_fl_tab)	// last round uses a different table
 
 // move final values to the output array.  CAUTION: the 
 // order of these assigns rely on the register mappings
@@ -297,8 +297,8 @@ aes_enc_blk:
 
 .global  aes_dec_blk
 
-.extern  it_tab
-.extern  il_tab
+.extern  crypto_it_tab
+.extern  crypto_il_tab
 
 .align 4
 
@@ -312,14 +312,11 @@ aes_dec_blk:
 1:	push    %ebx
 	mov     in_blk+4(%esp),%r2
 	push    %esi
-	mov     nrnd(%ebp),%r3   // number of rounds
+	mov     klen(%ebp),%r3   // key size
 	push    %edi
 #if dkey != 0
 	lea     dkey(%ebp),%ebp  // key pointer
 #endif
-	mov     %r3,%r0
-	shl     $4,%r0
-	add     %r0,%ebp
 	
 // input four columns and xor in first round key
 
@@ -333,27 +330,27 @@ aes_dec_blk:
 	xor     12(%ebp),%r5
 
 	sub     $8,%esp		// space for register saves on stack
-	sub     $16,%ebp	// increment to next round key
-	cmp     $12,%r3
+	add     $16,%ebp	// increment to next round key
+	cmp     $24,%r3
 	jb      4f		// 10 rounds for 128-bit key
-	lea     -32(%ebp),%ebp
+	lea     32(%ebp),%ebp
 	je      3f		// 12 rounds for 192-bit key
-	lea     -32(%ebp),%ebp
-
-2:	inv_rnd1( +64(%ebp), it_tab)	// 14 rounds for 256-bit key
-	inv_rnd2( +48(%ebp), it_tab)
-3:	inv_rnd1( +32(%ebp), it_tab)	// 12 rounds for 192-bit key
-	inv_rnd2( +16(%ebp), it_tab)
-4:	inv_rnd1(    (%ebp), it_tab)	// 10 rounds for 128-bit key
-	inv_rnd2( -16(%ebp), it_tab)
-	inv_rnd1( -32(%ebp), it_tab)
-	inv_rnd2( -48(%ebp), it_tab)
-	inv_rnd1( -64(%ebp), it_tab)
-	inv_rnd2( -80(%ebp), it_tab)
-	inv_rnd1( -96(%ebp), it_tab)
-	inv_rnd2(-112(%ebp), it_tab)
-	inv_rnd1(-128(%ebp), it_tab)
-	inv_rnd2(-144(%ebp), il_tab)	// last round uses a different table
+	lea     32(%ebp),%ebp
+
+2:	inv_rnd1( -64(%ebp), crypto_it_tab)	// 14 rounds for 256-bit key
+	inv_rnd2( -48(%ebp), crypto_it_tab)
+3:	inv_rnd1( -32(%ebp), crypto_it_tab)	// 12 rounds for 192-bit key
+	inv_rnd2( -16(%ebp), crypto_it_tab)
+4:	inv_rnd1(    (%ebp), crypto_it_tab)	// 10 rounds for 128-bit key
+	inv_rnd2( +16(%ebp), crypto_it_tab)
+	inv_rnd1( +32(%ebp), crypto_it_tab)
+	inv_rnd2( +48(%ebp), crypto_it_tab)
+	inv_rnd1( +64(%ebp), crypto_it_tab)
+	inv_rnd2( +80(%ebp), crypto_it_tab)
+	inv_rnd1( +96(%ebp), crypto_it_tab)
+	inv_rnd2(+112(%ebp), crypto_it_tab)
+	inv_rnd1(+128(%ebp), crypto_it_tab)
+	inv_rnd2(+144(%ebp), crypto_il_tab)	// last round uses a different table
 
 // move final values to the output array.  CAUTION: the 
 // order of these assigns rely on the register mappings
diff --git a/arch/x86/crypto/aes_32.c b/arch/x86/crypto/aes_32.c
index 9b0ab50394b0..8556d9561c20 100644
--- a/arch/x86/crypto/aes_32.c
+++ b/arch/x86/crypto/aes_32.c
@@ -1,468 +1,14 @@
-/* 
- * 
+/*
  * Glue Code for optimized 586 assembler version of AES
- *
- * Copyright (c) 2002, Dr Brian Gladman <>, Worcester, UK.
- * All rights reserved.
- *
- * LICENSE TERMS
- *
- * The free distribution and use of this software in both source and binary
- * form is allowed (with or without changes) provided that:
- *
- *   1. distributions of this source code include the above copyright
- *      notice, this list of conditions and the following disclaimer;
- *
- *   2. distributions in binary form include the above copyright
- *      notice, this list of conditions and the following disclaimer
- *      in the documentation and/or other associated materials;
- *
- *   3. the copyright holder's name is not used to endorse products
- *      built using this software without specific written permission.
- *
- * ALTERNATIVELY, provided that this notice is retained in full, this product
- * may be distributed under the terms of the GNU General Public License (GPL),
- * in which case the provisions of the GPL apply INSTEAD OF those given above.
- *
- * DISCLAIMER
- *
- * This software is provided 'as is' with no explicit or implied warranties
- * in respect of its properties, including, but not limited to, correctness
- * and/or fitness for purpose.
- *
- * Copyright (c) 2003, Adam J. Richter <adam@yggdrasil.com> (conversion to
- * 2.5 API).
- * Copyright (c) 2003, 2004 Fruhwirth Clemens <clemens@endorphin.org>
- * Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
- *
  */
 
-#include <asm/byteorder.h>
 #include <crypto/aes.h>
-#include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
 #include <linux/crypto.h>
-#include <linux/linkage.h>
 
 asmlinkage void aes_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 asmlinkage void aes_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 
-#define AES_KS_LENGTH		4 * AES_BLOCK_SIZE
-#define RC_LENGTH		29
-
-struct aes_ctx {
-	u32 ekey[AES_KS_LENGTH];
-	u32 rounds;
-	u32 dkey[AES_KS_LENGTH];
-};
-
-#define WPOLY 0x011b
-#define bytes2word(b0, b1, b2, b3)  \
-	(((u32)(b3) << 24) | ((u32)(b2) << 16) | ((u32)(b1) << 8) | (b0))
-
-/* define the finite field multiplies required for Rijndael */
-#define f2(x) ((x) ? pow[log[x] + 0x19] : 0)
-#define f3(x) ((x) ? pow[log[x] + 0x01] : 0)
-#define f9(x) ((x) ? pow[log[x] + 0xc7] : 0)
-#define fb(x) ((x) ? pow[log[x] + 0x68] : 0)
-#define fd(x) ((x) ? pow[log[x] + 0xee] : 0)
-#define fe(x) ((x) ? pow[log[x] + 0xdf] : 0)
-#define fi(x) ((x) ?   pow[255 - log[x]]: 0)
-
-static inline u32 upr(u32 x, int n)
-{
-	return (x << 8 * n) | (x >> (32 - 8 * n));
-}
-
-static inline u8 bval(u32 x, int n)
-{
-	return x >> 8 * n;
-}
-
-/* The forward and inverse affine transformations used in the S-box */
-#define fwd_affine(x) \
-	(w = (u32)x, w ^= (w<<1)^(w<<2)^(w<<3)^(w<<4), 0x63^(u8)(w^(w>>8)))
-
-#define inv_affine(x) \
-	(w = (u32)x, w = (w<<1)^(w<<3)^(w<<6), 0x05^(u8)(w^(w>>8)))
-
-static u32 rcon_tab[RC_LENGTH];
-
-u32 ft_tab[4][256];
-u32 fl_tab[4][256];
-static u32 im_tab[4][256];
-u32 il_tab[4][256];
-u32 it_tab[4][256];
-
-static void gen_tabs(void)
-{
-	u32 i, w;
-	u8 pow[512], log[256];
-
-	/*
-	 * log and power tables for GF(2^8) finite field with
-	 * WPOLY as modular polynomial - the simplest primitive
-	 * root is 0x03, used here to generate the tables.
-	 */
-	i = 0; w = 1; 
-	
-	do {
-		pow[i] = (u8)w;
-		pow[i + 255] = (u8)w;
-		log[w] = (u8)i++;
-		w ^=  (w << 1) ^ (w & 0x80 ? WPOLY : 0);
-	} while (w != 1);
-	
-	for(i = 0, w = 1; i < RC_LENGTH; ++i) {
-		rcon_tab[i] = bytes2word(w, 0, 0, 0);
-		w = f2(w);
-	}
-
-	for(i = 0; i < 256; ++i) {
-		u8 b;
-		
-		b = fwd_affine(fi((u8)i));
-		w = bytes2word(f2(b), b, b, f3(b));
-
-		/* tables for a normal encryption round */
-		ft_tab[0][i] = w;
-		ft_tab[1][i] = upr(w, 1);
-		ft_tab[2][i] = upr(w, 2);
-		ft_tab[3][i] = upr(w, 3);
-		w = bytes2word(b, 0, 0, 0);
-		
-		/*
-		 * tables for last encryption round
-		 * (may also be used in the key schedule)
-		 */
-		fl_tab[0][i] = w;
-		fl_tab[1][i] = upr(w, 1);
-		fl_tab[2][i] = upr(w, 2);
-		fl_tab[3][i] = upr(w, 3);
-		
-		b = fi(inv_affine((u8)i));
-		w = bytes2word(fe(b), f9(b), fd(b), fb(b));
-
-		/* tables for the inverse mix column operation  */
-		im_tab[0][b] = w;
-		im_tab[1][b] = upr(w, 1);
-		im_tab[2][b] = upr(w, 2);
-		im_tab[3][b] = upr(w, 3);
-
-		/* tables for a normal decryption round */
-		it_tab[0][i] = w;
-		it_tab[1][i] = upr(w,1);
-		it_tab[2][i] = upr(w,2);
-		it_tab[3][i] = upr(w,3);
-
-		w = bytes2word(b, 0, 0, 0);
-		
-		/* tables for last decryption round */
-		il_tab[0][i] = w;
-		il_tab[1][i] = upr(w,1);
-		il_tab[2][i] = upr(w,2);
-		il_tab[3][i] = upr(w,3);
-    }
-}
-
-#define four_tables(x,tab,vf,rf,c)		\
-(	tab[0][bval(vf(x,0,c),rf(0,c))]	^	\
-	tab[1][bval(vf(x,1,c),rf(1,c))] ^	\
-	tab[2][bval(vf(x,2,c),rf(2,c))] ^	\
-	tab[3][bval(vf(x,3,c),rf(3,c))]		\
-)
-
-#define vf1(x,r,c)  (x)
-#define rf1(r,c)    (r)
-#define rf2(r,c)    ((r-c)&3)
-
-#define inv_mcol(x) four_tables(x,im_tab,vf1,rf1,0)
-#define ls_box(x,c) four_tables(x,fl_tab,vf1,rf2,c)
-
-#define ff(x) inv_mcol(x)
-
-#define ke4(k,i)							\
-{									\
-	k[4*(i)+4] = ss[0] ^= ls_box(ss[3],3) ^ rcon_tab[i];		\
-	k[4*(i)+5] = ss[1] ^= ss[0];					\
-	k[4*(i)+6] = ss[2] ^= ss[1];					\
-	k[4*(i)+7] = ss[3] ^= ss[2];					\
-}
-
-#define kel4(k,i)							\
-{									\
-	k[4*(i)+4] = ss[0] ^= ls_box(ss[3],3) ^ rcon_tab[i];		\
-	k[4*(i)+5] = ss[1] ^= ss[0];					\
-	k[4*(i)+6] = ss[2] ^= ss[1]; k[4*(i)+7] = ss[3] ^= ss[2];	\
-}
-
-#define ke6(k,i)							\
-{									\
-	k[6*(i)+ 6] = ss[0] ^= ls_box(ss[5],3) ^ rcon_tab[i];		\
-	k[6*(i)+ 7] = ss[1] ^= ss[0];					\
-	k[6*(i)+ 8] = ss[2] ^= ss[1];					\
-	k[6*(i)+ 9] = ss[3] ^= ss[2];					\
-	k[6*(i)+10] = ss[4] ^= ss[3];					\
-	k[6*(i)+11] = ss[5] ^= ss[4];					\
-}
-
-#define kel6(k,i)							\
-{									\
-	k[6*(i)+ 6] = ss[0] ^= ls_box(ss[5],3) ^ rcon_tab[i];		\
-	k[6*(i)+ 7] = ss[1] ^= ss[0];					\
-	k[6*(i)+ 8] = ss[2] ^= ss[1];					\
-	k[6*(i)+ 9] = ss[3] ^= ss[2];					\
-}
-
-#define ke8(k,i)							\
-{									\
-	k[8*(i)+ 8] = ss[0] ^= ls_box(ss[7],3) ^ rcon_tab[i];		\
-	k[8*(i)+ 9] = ss[1] ^= ss[0];					\
-	k[8*(i)+10] = ss[2] ^= ss[1];					\
-	k[8*(i)+11] = ss[3] ^= ss[2];					\
-	k[8*(i)+12] = ss[4] ^= ls_box(ss[3],0);				\
-	k[8*(i)+13] = ss[5] ^= ss[4];					\
-	k[8*(i)+14] = ss[6] ^= ss[5];					\
-	k[8*(i)+15] = ss[7] ^= ss[6];					\
-}
-
-#define kel8(k,i)							\
-{									\
-	k[8*(i)+ 8] = ss[0] ^= ls_box(ss[7],3) ^ rcon_tab[i];		\
-	k[8*(i)+ 9] = ss[1] ^= ss[0];					\
-	k[8*(i)+10] = ss[2] ^= ss[1];					\
-	k[8*(i)+11] = ss[3] ^= ss[2];					\
-}
-
-#define kdf4(k,i)							\
-{									\
-	ss[0] = ss[0] ^ ss[2] ^ ss[1] ^ ss[3];				\
-	ss[1] = ss[1] ^ ss[3];						\
-	ss[2] = ss[2] ^ ss[3];						\
-	ss[3] = ss[3];							\
-	ss[4] = ls_box(ss[(i+3) % 4], 3) ^ rcon_tab[i];			\
-	ss[i % 4] ^= ss[4];						\
-	ss[4] ^= k[4*(i)];						\
-	k[4*(i)+4] = ff(ss[4]);						\
-	ss[4] ^= k[4*(i)+1];						\
-	k[4*(i)+5] = ff(ss[4]);						\
-	ss[4] ^= k[4*(i)+2];						\
-	k[4*(i)+6] = ff(ss[4]);						\
-	ss[4] ^= k[4*(i)+3];						\
-	k[4*(i)+7] = ff(ss[4]);						\
-}
-
-#define kd4(k,i)							\
-{									\
-	ss[4] = ls_box(ss[(i+3) % 4], 3) ^ rcon_tab[i];			\
-	ss[i % 4] ^= ss[4];						\
-	ss[4] = ff(ss[4]);						\
-	k[4*(i)+4] = ss[4] ^= k[4*(i)];					\
-	k[4*(i)+5] = ss[4] ^= k[4*(i)+1];				\
-	k[4*(i)+6] = ss[4] ^= k[4*(i)+2];				\
-	k[4*(i)+7] = ss[4] ^= k[4*(i)+3];				\
-}
-
-#define kdl4(k,i)							\
-{									\
-	ss[4] = ls_box(ss[(i+3) % 4], 3) ^ rcon_tab[i];			\
-	ss[i % 4] ^= ss[4];						\
-	k[4*(i)+4] = (ss[0] ^= ss[1]) ^ ss[2] ^ ss[3];			\
-	k[4*(i)+5] = ss[1] ^ ss[3];					\
-	k[4*(i)+6] = ss[0];						\
-	k[4*(i)+7] = ss[1];						\
-}
-
-#define kdf6(k,i)							\
-{									\
-	ss[0] ^= ls_box(ss[5],3) ^ rcon_tab[i];				\
-	k[6*(i)+ 6] = ff(ss[0]);					\
-	ss[1] ^= ss[0];							\
-	k[6*(i)+ 7] = ff(ss[1]);					\
-	ss[2] ^= ss[1];							\
-	k[6*(i)+ 8] = ff(ss[2]);					\
-	ss[3] ^= ss[2];							\
-	k[6*(i)+ 9] = ff(ss[3]);					\
-	ss[4] ^= ss[3];							\
-	k[6*(i)+10] = ff(ss[4]);					\
-	ss[5] ^= ss[4];							\
-	k[6*(i)+11] = ff(ss[5]);					\
-}
-
-#define kd6(k,i)							\
-{									\
-	ss[6] = ls_box(ss[5],3) ^ rcon_tab[i];				\
-	ss[0] ^= ss[6]; ss[6] = ff(ss[6]);				\
-	k[6*(i)+ 6] = ss[6] ^= k[6*(i)];				\
-	ss[1] ^= ss[0];							\
-	k[6*(i)+ 7] = ss[6] ^= k[6*(i)+ 1];				\
-	ss[2] ^= ss[1];							\
-	k[6*(i)+ 8] = ss[6] ^= k[6*(i)+ 2];				\
-	ss[3] ^= ss[2];							\
-	k[6*(i)+ 9] = ss[6] ^= k[6*(i)+ 3];				\
-	ss[4] ^= ss[3];							\
-	k[6*(i)+10] = ss[6] ^= k[6*(i)+ 4];				\
-	ss[5] ^= ss[4];							\
-	k[6*(i)+11] = ss[6] ^= k[6*(i)+ 5];				\
-}
-
-#define kdl6(k,i)							\
-{									\
-	ss[0] ^= ls_box(ss[5],3) ^ rcon_tab[i];				\
-	k[6*(i)+ 6] = ss[0];						\
-	ss[1] ^= ss[0];							\
-	k[6*(i)+ 7] = ss[1];						\
-	ss[2] ^= ss[1];							\
-	k[6*(i)+ 8] = ss[2];						\
-	ss[3] ^= ss[2];							\
-	k[6*(i)+ 9] = ss[3];						\
-}
-
-#define kdf8(k,i)							\
-{									\
-	ss[0] ^= ls_box(ss[7],3) ^ rcon_tab[i];				\
-	k[8*(i)+ 8] = ff(ss[0]);					\
-	ss[1] ^= ss[0];							\
-	k[8*(i)+ 9] = ff(ss[1]);					\
-	ss[2] ^= ss[1];							\
-	k[8*(i)+10] = ff(ss[2]);					\
-	ss[3] ^= ss[2];							\
-	k[8*(i)+11] = ff(ss[3]);					\
-	ss[4] ^= ls_box(ss[3],0);					\
-	k[8*(i)+12] = ff(ss[4]);					\
-	ss[5] ^= ss[4];							\
-	k[8*(i)+13] = ff(ss[5]);					\
-	ss[6] ^= ss[5];							\
-	k[8*(i)+14] = ff(ss[6]);					\
-	ss[7] ^= ss[6];							\
-	k[8*(i)+15] = ff(ss[7]);					\
-}
-
-#define kd8(k,i)							\
-{									\
-	u32 __g = ls_box(ss[7],3) ^ rcon_tab[i];			\
-	ss[0] ^= __g;							\
-	__g = ff(__g);							\
-	k[8*(i)+ 8] = __g ^= k[8*(i)];					\
-	ss[1] ^= ss[0];							\
-	k[8*(i)+ 9] = __g ^= k[8*(i)+ 1];				\
-	ss[2] ^= ss[1];							\
-	k[8*(i)+10] = __g ^= k[8*(i)+ 2];				\
-	ss[3] ^= ss[2];							\
-	k[8*(i)+11] = __g ^= k[8*(i)+ 3];				\
-	__g = ls_box(ss[3],0);						\
-	ss[4] ^= __g;							\
-	__g = ff(__g);							\
-	k[8*(i)+12] = __g ^= k[8*(i)+ 4];				\
-	ss[5] ^= ss[4];							\
-	k[8*(i)+13] = __g ^= k[8*(i)+ 5];				\
-	ss[6] ^= ss[5];							\
-	k[8*(i)+14] = __g ^= k[8*(i)+ 6];				\
-	ss[7] ^= ss[6];							\
-	k[8*(i)+15] = __g ^= k[8*(i)+ 7];				\
-}
-
-#define kdl8(k,i)							\
-{									\
-	ss[0] ^= ls_box(ss[7],3) ^ rcon_tab[i];				\
-	k[8*(i)+ 8] = ss[0];						\
-	ss[1] ^= ss[0];							\
-	k[8*(i)+ 9] = ss[1];						\
-	ss[2] ^= ss[1];							\
-	k[8*(i)+10] = ss[2];						\
-	ss[3] ^= ss[2];							\
-	k[8*(i)+11] = ss[3];						\
-}
-
-static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
-		       unsigned int key_len)
-{
-	int i;
-	u32 ss[8];
-	struct aes_ctx *ctx = crypto_tfm_ctx(tfm);
-	const __le32 *key = (const __le32 *)in_key;
-	u32 *flags = &tfm->crt_flags;
-
-	/* encryption schedule */
-	
-	ctx->ekey[0] = ss[0] = le32_to_cpu(key[0]);
-	ctx->ekey[1] = ss[1] = le32_to_cpu(key[1]);
-	ctx->ekey[2] = ss[2] = le32_to_cpu(key[2]);
-	ctx->ekey[3] = ss[3] = le32_to_cpu(key[3]);
-
-	switch(key_len) {
-	case 16:
-		for (i = 0; i < 9; i++)
-			ke4(ctx->ekey, i);
-		kel4(ctx->ekey, 9);
-		ctx->rounds = 10;
-		break;
-		
-	case 24:
-		ctx->ekey[4] = ss[4] = le32_to_cpu(key[4]);
-		ctx->ekey[5] = ss[5] = le32_to_cpu(key[5]);
-		for (i = 0; i < 7; i++)
-			ke6(ctx->ekey, i);
-		kel6(ctx->ekey, 7); 
-		ctx->rounds = 12;
-		break;
-
-	case 32:
-		ctx->ekey[4] = ss[4] = le32_to_cpu(key[4]);
-		ctx->ekey[5] = ss[5] = le32_to_cpu(key[5]);
-		ctx->ekey[6] = ss[6] = le32_to_cpu(key[6]);
-		ctx->ekey[7] = ss[7] = le32_to_cpu(key[7]);
-		for (i = 0; i < 6; i++)
-			ke8(ctx->ekey, i);
-		kel8(ctx->ekey, 6);
-		ctx->rounds = 14;
-		break;
-
-	default:
-		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
-		return -EINVAL;
-	}
-	
-	/* decryption schedule */
-	
-	ctx->dkey[0] = ss[0] = le32_to_cpu(key[0]);
-	ctx->dkey[1] = ss[1] = le32_to_cpu(key[1]);
-	ctx->dkey[2] = ss[2] = le32_to_cpu(key[2]);
-	ctx->dkey[3] = ss[3] = le32_to_cpu(key[3]);
-
-	switch (key_len) {
-	case 16:
-		kdf4(ctx->dkey, 0);
-		for (i = 1; i < 9; i++)
-			kd4(ctx->dkey, i);
-		kdl4(ctx->dkey, 9);
-		break;
-		
-	case 24:
-		ctx->dkey[4] = ff(ss[4] = le32_to_cpu(key[4]));
-		ctx->dkey[5] = ff(ss[5] = le32_to_cpu(key[5]));
-		kdf6(ctx->dkey, 0);
-		for (i = 1; i < 7; i++)
-			kd6(ctx->dkey, i);
-		kdl6(ctx->dkey, 7);
-		break;
-
-	case 32:
-		ctx->dkey[4] = ff(ss[4] = le32_to_cpu(key[4]));
-		ctx->dkey[5] = ff(ss[5] = le32_to_cpu(key[5]));
-		ctx->dkey[6] = ff(ss[6] = le32_to_cpu(key[6]));
-		ctx->dkey[7] = ff(ss[7] = le32_to_cpu(key[7]));
-		kdf8(ctx->dkey, 0);
-		for (i = 1; i < 6; i++)
-			kd8(ctx->dkey, i);
-		kdl8(ctx->dkey, 6);
-		break;
-	}
-	return 0;
-}
-
 static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
 	aes_enc_blk(tfm, dst, src);
@@ -479,14 +25,14 @@ static struct crypto_alg aes_alg = {
 	.cra_priority		=	200,
 	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
 	.cra_blocksize		=	AES_BLOCK_SIZE,
-	.cra_ctxsize		=	sizeof(struct aes_ctx),
+	.cra_ctxsize		=	sizeof(struct crypto_aes_ctx),
 	.cra_module		=	THIS_MODULE,
 	.cra_list		=	LIST_HEAD_INIT(aes_alg.cra_list),
 	.cra_u			=	{
 		.cipher = {
 			.cia_min_keysize	=	AES_MIN_KEY_SIZE,
 			.cia_max_keysize	=	AES_MAX_KEY_SIZE,
-			.cia_setkey	   	= 	aes_set_key,
+			.cia_setkey		=	crypto_aes_set_key,
 			.cia_encrypt	 	=	aes_encrypt,
 			.cia_decrypt	  	=	aes_decrypt
 		}
@@ -495,7 +41,6 @@ static struct crypto_alg aes_alg = {
 
 static int __init aes_init(void)
 {
-	gen_tabs();
 	return crypto_register_alg(&aes_alg);
 }
 
diff --git a/crypto/Kconfig b/crypto/Kconfig
index d9666e33a9f1..cf115b14079e 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -328,6 +328,7 @@ config CRYPTO_AES_586
 	tristate "AES cipher algorithms (i586)"
 	depends on (X86 || UML_X86) && !64BIT
 	select CRYPTO_ALGAPI
+	select CRYPTO_AES
 	help
 	  AES cipher algorithms (FIPS-197). AES uses the Rijndael 
 	  algorithm.
-- 
cgit v1.2.3-59-g8ed1b


From 06e1a8f0505426a97292174a959560fd86ea0a3d Mon Sep 17 00:00:00 2001
From: Sebastian Siewior <sebastian@breakpoint.cc>
Date: Fri, 30 Nov 2007 00:15:11 +1100
Subject: [CRYPTO] aes-asm: Merge common glue code

32 bit and 64 bit glue code is using (now) the same
piece code. This patch unifies them.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/x86/crypto/Makefile   |  4 ++--
 arch/x86/crypto/aes_32.c   | 58 ----------------------------------------------
 arch/x86/crypto/aes_64.c   | 56 --------------------------------------------
 arch/x86/crypto/aes_glue.c | 57 +++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 59 insertions(+), 116 deletions(-)
 delete mode 100644 arch/x86/crypto/aes_32.c
 delete mode 100644 arch/x86/crypto/aes_64.c
 create mode 100644 arch/x86/crypto/aes_glue.c

(limited to 'arch')

diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 46bb609e2444..b8fbb43df6d7 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -8,8 +8,8 @@ obj-$(CONFIG_CRYPTO_TWOFISH_586) += twofish-i586.o
 obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o
 obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
 
-aes-i586-y := aes-i586-asm_32.o aes_32.o
+aes-i586-y := aes-i586-asm_32.o aes_glue.o
 twofish-i586-y := twofish-i586-asm_32.o twofish_32.o
 
-aes-x86_64-y := aes-x86_64-asm_64.o aes_64.o
+aes-x86_64-y := aes-x86_64-asm_64.o aes_glue.o
 twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_64.o
diff --git a/arch/x86/crypto/aes_32.c b/arch/x86/crypto/aes_32.c
deleted file mode 100644
index 8556d9561c20..000000000000
--- a/arch/x86/crypto/aes_32.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Glue Code for optimized 586 assembler version of AES
- */
-
-#include <crypto/aes.h>
-#include <linux/module.h>
-#include <linux/crypto.h>
-
-asmlinkage void aes_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
-asmlinkage void aes_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
-
-static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
-	aes_enc_blk(tfm, dst, src);
-}
-
-static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
-	aes_dec_blk(tfm, dst, src);
-}
-
-static struct crypto_alg aes_alg = {
-	.cra_name		=	"aes",
-	.cra_driver_name	=	"aes-i586",
-	.cra_priority		=	200,
-	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
-	.cra_blocksize		=	AES_BLOCK_SIZE,
-	.cra_ctxsize		=	sizeof(struct crypto_aes_ctx),
-	.cra_module		=	THIS_MODULE,
-	.cra_list		=	LIST_HEAD_INIT(aes_alg.cra_list),
-	.cra_u			=	{
-		.cipher = {
-			.cia_min_keysize	=	AES_MIN_KEY_SIZE,
-			.cia_max_keysize	=	AES_MAX_KEY_SIZE,
-			.cia_setkey		=	crypto_aes_set_key,
-			.cia_encrypt	 	=	aes_encrypt,
-			.cia_decrypt	  	=	aes_decrypt
-		}
-	}
-};
-
-static int __init aes_init(void)
-{
-	return crypto_register_alg(&aes_alg);
-}
-
-static void __exit aes_fini(void)
-{
-	crypto_unregister_alg(&aes_alg);
-}
-
-module_init(aes_init);
-module_exit(aes_fini);
-
-MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, i586 asm optimized");
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_AUTHOR("Fruhwirth Clemens, James Morris, Brian Gladman, Adam Richter");
-MODULE_ALIAS("aes");
diff --git a/arch/x86/crypto/aes_64.c b/arch/x86/crypto/aes_64.c
deleted file mode 100644
index d7a41a97dd3f..000000000000
--- a/arch/x86/crypto/aes_64.c
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Glue Code for AES Cipher Algorithm
- *
- */
-
-#include <crypto/aes.h>
-
-asmlinkage void aes_enc_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in);
-asmlinkage void aes_dec_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in);
-
-static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
-	aes_enc_blk(tfm, dst, src);
-}
-
-static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
-	aes_dec_blk(tfm, dst, src);
-}
-
-static struct crypto_alg aes_alg = {
-	.cra_name		=	"aes",
-	.cra_driver_name	=	"aes-x86_64",
-	.cra_priority		=	200,
-	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
-	.cra_blocksize		=	AES_BLOCK_SIZE,
-	.cra_ctxsize		=	sizeof(struct crypto_aes_ctx),
-	.cra_module		=	THIS_MODULE,
-	.cra_list		=	LIST_HEAD_INIT(aes_alg.cra_list),
-	.cra_u			=	{
-		.cipher = {
-			.cia_min_keysize	=	AES_MIN_KEY_SIZE,
-			.cia_max_keysize	=	AES_MAX_KEY_SIZE,
-			.cia_setkey		=	crypto_aes_set_key,
-			.cia_encrypt	 	=	aes_encrypt,
-			.cia_decrypt	  	=	aes_decrypt
-		}
-	}
-};
-
-static int __init aes_init(void)
-{
-	return crypto_register_alg(&aes_alg);
-}
-
-static void __exit aes_fini(void)
-{
-	crypto_unregister_alg(&aes_alg);
-}
-
-module_init(aes_init);
-module_exit(aes_fini);
-
-MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("aes");
diff --git a/arch/x86/crypto/aes_glue.c b/arch/x86/crypto/aes_glue.c
new file mode 100644
index 000000000000..71f457827116
--- /dev/null
+++ b/arch/x86/crypto/aes_glue.c
@@ -0,0 +1,57 @@
+/*
+ * Glue Code for the asm optimized version of the AES Cipher Algorithm
+ *
+ */
+
+#include <crypto/aes.h>
+
+asmlinkage void aes_enc_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in);
+asmlinkage void aes_dec_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in);
+
+static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+	aes_enc_blk(tfm, dst, src);
+}
+
+static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+	aes_dec_blk(tfm, dst, src);
+}
+
+static struct crypto_alg aes_alg = {
+	.cra_name		= "aes",
+	.cra_driver_name	= "aes-asm",
+	.cra_priority		= 200,
+	.cra_flags		= CRYPTO_ALG_TYPE_CIPHER,
+	.cra_blocksize		= AES_BLOCK_SIZE,
+	.cra_ctxsize		= sizeof(struct crypto_aes_ctx),
+	.cra_module		= THIS_MODULE,
+	.cra_list		= LIST_HEAD_INIT(aes_alg.cra_list),
+	.cra_u	= {
+		.cipher	= {
+			.cia_min_keysize	= AES_MIN_KEY_SIZE,
+			.cia_max_keysize	= AES_MAX_KEY_SIZE,
+			.cia_setkey		= crypto_aes_set_key,
+			.cia_encrypt		= aes_encrypt,
+			.cia_decrypt		= aes_decrypt
+		}
+	}
+};
+
+static int __init aes_init(void)
+{
+	return crypto_register_alg(&aes_alg);
+}
+
+static void __exit aes_fini(void)
+{
+	crypto_unregister_alg(&aes_alg);
+}
+
+module_init(aes_init);
+module_exit(aes_fini);
+
+MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, asm optimized");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("aes");
+MODULE_ALIAS("aes-asm");
-- 
cgit v1.2.3-59-g8ed1b


From b0c3e75d857f3785a4b274e26b1c0b2327580dda Mon Sep 17 00:00:00 2001
From: Sebastian Siewior <sebastian@breakpoint.cc>
Date: Sat, 1 Dec 2007 12:47:37 +1100
Subject: [CRYPTO] aes_s390: Add fallback driver

Some CPUs support only 128 bit keys in HW. This patch adds SW fallback
support for the other keys which may be required. The generic algorithm
(and the block mode) must be availble in case of a fallback.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/s390/crypto/aes_s390.c | 226 ++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 205 insertions(+), 21 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index 812511bbb540..85246112ab5e 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -6,6 +6,7 @@
  * s390 Version:
  *   Copyright IBM Corp. 2005,2007
  *   Author(s): Jan Glauber (jang@de.ibm.com)
+ *		Sebastian Siewior (sebastian@breakpoint.cc> SW-Fallback
  *
  * Derived from "crypto/aes_generic.c"
  *
@@ -18,6 +19,7 @@
 
 #include <crypto/aes.h>
 #include <crypto/algapi.h>
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include "crypt_s390.h"
@@ -34,45 +36,89 @@ struct s390_aes_ctx {
 	long enc;
 	long dec;
 	int key_len;
+	union {
+		struct crypto_blkcipher *blk;
+		struct crypto_cipher *cip;
+	} fallback;
 };
 
-static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
-		       unsigned int key_len)
+/*
+ * Check if the key_len is supported by the HW.
+ * Returns 0 if it is, a positive number if it is not and software fallback is
+ * required or a negative number in case the key size is not valid
+ */
+static int need_fallback(unsigned int key_len)
 {
-	struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
-	u32 *flags = &tfm->crt_flags;
-
 	switch (key_len) {
 	case 16:
 		if (!(keylen_flag & AES_KEYLEN_128))
-			goto fail;
+			return 1;
 		break;
 	case 24:
 		if (!(keylen_flag & AES_KEYLEN_192))
-			goto fail;
-
+			return 1;
 		break;
 	case 32:
 		if (!(keylen_flag & AES_KEYLEN_256))
-			goto fail;
+			return 1;
 		break;
 	default:
-		goto fail;
+		return -1;
 		break;
 	}
+	return 0;
+}
+
+static int setkey_fallback_cip(struct crypto_tfm *tfm, const u8 *in_key,
+		unsigned int key_len)
+{
+	struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+	int ret;
+
+	sctx->fallback.blk->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
+	sctx->fallback.blk->base.crt_flags |= (tfm->crt_flags &
+			CRYPTO_TFM_REQ_MASK);
+
+	ret = crypto_cipher_setkey(sctx->fallback.cip, in_key, key_len);
+	if (ret) {
+		tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
+		tfm->crt_flags |= (sctx->fallback.blk->base.crt_flags &
+				CRYPTO_TFM_RES_MASK);
+	}
+	return ret;
+}
+
+static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+		       unsigned int key_len)
+{
+	struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+	u32 *flags = &tfm->crt_flags;
+	int ret;
+
+	ret = need_fallback(key_len);
+	if (ret < 0) {
+		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+		return -EINVAL;
+	}
 
 	sctx->key_len = key_len;
-	memcpy(sctx->key, in_key, key_len);
-	return 0;
-fail:
-	*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
-	return -EINVAL;
+	if (!ret) {
+		memcpy(sctx->key, in_key, key_len);
+		return 0;
+	}
+
+	return setkey_fallback_cip(tfm, in_key, key_len);
 }
 
 static void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
 {
 	const struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
 
+	if (unlikely(need_fallback(sctx->key_len))) {
+		crypto_cipher_encrypt_one(sctx->fallback.cip, out, in);
+		return;
+	}
+
 	switch (sctx->key_len) {
 	case 16:
 		crypt_s390_km(KM_AES_128_ENCRYPT, &sctx->key, out, in,
@@ -93,6 +139,11 @@ static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
 {
 	const struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
 
+	if (unlikely(need_fallback(sctx->key_len))) {
+		crypto_cipher_decrypt_one(sctx->fallback.cip, out, in);
+		return;
+	}
+
 	switch (sctx->key_len) {
 	case 16:
 		crypt_s390_km(KM_AES_128_DECRYPT, &sctx->key, out, in,
@@ -109,6 +160,29 @@ static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
 	}
 }
 
+static int fallback_init_cip(struct crypto_tfm *tfm)
+{
+	const char *name = tfm->__crt_alg->cra_name;
+	struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+
+	sctx->fallback.cip = crypto_alloc_cipher(name, 0,
+			CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
+
+	if (IS_ERR(sctx->fallback.cip)) {
+		printk(KERN_ERR "Error allocating fallback algo %s\n", name);
+		return PTR_ERR(sctx->fallback.blk);
+	}
+
+	return 0;
+}
+
+static void fallback_exit_cip(struct crypto_tfm *tfm)
+{
+	struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+
+	crypto_free_cipher(sctx->fallback.cip);
+	sctx->fallback.cip = NULL;
+}
 
 static struct crypto_alg aes_alg = {
 	.cra_name		=	"aes",
@@ -120,6 +194,8 @@ static struct crypto_alg aes_alg = {
 	.cra_ctxsize		=	sizeof(struct s390_aes_ctx),
 	.cra_module		=	THIS_MODULE,
 	.cra_list		=	LIST_HEAD_INIT(aes_alg.cra_list),
+	.cra_init               =       fallback_init_cip,
+	.cra_exit               =       fallback_exit_cip,
 	.cra_u			=	{
 		.cipher = {
 			.cia_min_keysize	=	AES_MIN_KEY_SIZE,
@@ -131,10 +207,76 @@ static struct crypto_alg aes_alg = {
 	}
 };
 
+static int setkey_fallback_blk(struct crypto_tfm *tfm, const u8 *key,
+		unsigned int len)
+{
+	struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+	unsigned int ret;
+
+	sctx->fallback.blk->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
+	sctx->fallback.blk->base.crt_flags |= (tfm->crt_flags &
+			CRYPTO_TFM_REQ_MASK);
+
+	ret = crypto_blkcipher_setkey(sctx->fallback.blk, key, len);
+	if (ret) {
+		tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
+		tfm->crt_flags |= (sctx->fallback.blk->base.crt_flags &
+				CRYPTO_TFM_RES_MASK);
+	}
+	return ret;
+}
+
+static int fallback_blk_dec(struct blkcipher_desc *desc,
+		struct scatterlist *dst, struct scatterlist *src,
+		unsigned int nbytes)
+{
+	unsigned int ret;
+	struct crypto_blkcipher *tfm;
+	struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+
+	memcpy(crypto_blkcipher_crt(sctx->fallback.blk)->iv, desc->info,
+		AES_BLOCK_SIZE);
+
+	tfm = desc->tfm;
+	desc->tfm = sctx->fallback.blk;
+
+	ret = crypto_blkcipher_decrypt(desc, dst, src, nbytes);
+
+	desc->tfm = tfm;
+	return ret;
+}
+
+static int fallback_blk_enc(struct blkcipher_desc *desc,
+		struct scatterlist *dst, struct scatterlist *src,
+		unsigned int nbytes)
+{
+	unsigned int ret;
+	struct crypto_blkcipher *tfm;
+	struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+
+	memcpy(crypto_blkcipher_crt(sctx->fallback.blk)->iv, desc->info,
+		AES_BLOCK_SIZE);
+
+	tfm = desc->tfm;
+	desc->tfm = sctx->fallback.blk;
+
+	ret = crypto_blkcipher_encrypt(desc, dst, src, nbytes);
+
+	desc->tfm = tfm;
+	return ret;
+}
+
 static int ecb_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
 			   unsigned int key_len)
 {
 	struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+	int ret;
+
+	ret = need_fallback(key_len);
+	if (ret > 0) {
+		sctx->key_len = key_len;
+		return setkey_fallback_blk(tfm, in_key, key_len);
+	}
 
 	switch (key_len) {
 	case 16:
@@ -183,6 +325,9 @@ static int ecb_aes_encrypt(struct blkcipher_desc *desc,
 	struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
 	struct blkcipher_walk walk;
 
+	if (unlikely(need_fallback(sctx->key_len)))
+		return fallback_blk_enc(desc, dst, src, nbytes);
+
 	blkcipher_walk_init(&walk, dst, src, nbytes);
 	return ecb_aes_crypt(desc, sctx->enc, sctx->key, &walk);
 }
@@ -194,10 +339,37 @@ static int ecb_aes_decrypt(struct blkcipher_desc *desc,
 	struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
 	struct blkcipher_walk walk;
 
+	if (unlikely(need_fallback(sctx->key_len)))
+		return fallback_blk_dec(desc, dst, src, nbytes);
+
 	blkcipher_walk_init(&walk, dst, src, nbytes);
 	return ecb_aes_crypt(desc, sctx->dec, sctx->key, &walk);
 }
 
+static int fallback_init_blk(struct crypto_tfm *tfm)
+{
+	const char *name = tfm->__crt_alg->cra_name;
+	struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+
+	sctx->fallback.blk = crypto_alloc_blkcipher(name, 0,
+			CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
+
+	if (IS_ERR(sctx->fallback.blk)) {
+		printk(KERN_ERR "Error allocating fallback algo %s\n", name);
+		return PTR_ERR(sctx->fallback.blk);
+	}
+
+	return 0;
+}
+
+static void fallback_exit_blk(struct crypto_tfm *tfm)
+{
+	struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+
+	crypto_free_blkcipher(sctx->fallback.blk);
+	sctx->fallback.blk = NULL;
+}
+
 static struct crypto_alg ecb_aes_alg = {
 	.cra_name		=	"ecb(aes)",
 	.cra_driver_name	=	"ecb-aes-s390",
@@ -209,6 +381,8 @@ static struct crypto_alg ecb_aes_alg = {
 	.cra_type		=	&crypto_blkcipher_type,
 	.cra_module		=	THIS_MODULE,
 	.cra_list		=	LIST_HEAD_INIT(ecb_aes_alg.cra_list),
+	.cra_init		=	fallback_init_blk,
+	.cra_exit		=	fallback_exit_blk,
 	.cra_u			=	{
 		.blkcipher = {
 			.min_keysize		=	AES_MIN_KEY_SIZE,
@@ -224,6 +398,13 @@ static int cbc_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
 			   unsigned int key_len)
 {
 	struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+	int ret;
+
+	ret = need_fallback(key_len);
+	if (ret > 0) {
+		sctx->key_len = key_len;
+		return setkey_fallback_blk(tfm, in_key, key_len);
+	}
 
 	switch (key_len) {
 	case 16:
@@ -278,6 +459,9 @@ static int cbc_aes_encrypt(struct blkcipher_desc *desc,
 	struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
 	struct blkcipher_walk walk;
 
+	if (unlikely(need_fallback(sctx->key_len)))
+		return fallback_blk_enc(desc, dst, src, nbytes);
+
 	blkcipher_walk_init(&walk, dst, src, nbytes);
 	return cbc_aes_crypt(desc, sctx->enc, sctx->iv, &walk);
 }
@@ -289,6 +473,9 @@ static int cbc_aes_decrypt(struct blkcipher_desc *desc,
 	struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
 	struct blkcipher_walk walk;
 
+	if (unlikely(need_fallback(sctx->key_len)))
+		return fallback_blk_dec(desc, dst, src, nbytes);
+
 	blkcipher_walk_init(&walk, dst, src, nbytes);
 	return cbc_aes_crypt(desc, sctx->dec, sctx->iv, &walk);
 }
@@ -304,6 +491,8 @@ static struct crypto_alg cbc_aes_alg = {
 	.cra_type		=	&crypto_blkcipher_type,
 	.cra_module		=	THIS_MODULE,
 	.cra_list		=	LIST_HEAD_INIT(cbc_aes_alg.cra_list),
+	.cra_init		=	fallback_init_blk,
+	.cra_exit		=	fallback_exit_blk,
 	.cra_u			=	{
 		.blkcipher = {
 			.min_keysize		=	AES_MIN_KEY_SIZE,
@@ -331,14 +520,10 @@ static int __init aes_init(void)
 		return -EOPNOTSUPP;
 
 	/* z9 109 and z9 BC/EC only support 128 bit key length */
-	if (keylen_flag == AES_KEYLEN_128) {
-		aes_alg.cra_u.cipher.cia_max_keysize = AES_MIN_KEY_SIZE;
-		ecb_aes_alg.cra_u.blkcipher.max_keysize = AES_MIN_KEY_SIZE;
-		cbc_aes_alg.cra_u.blkcipher.max_keysize = AES_MIN_KEY_SIZE;
+	if (keylen_flag == AES_KEYLEN_128)
 		printk(KERN_INFO
 		       "aes_s390: hardware acceleration only available for"
 		       "128 bit keys\n");
-	}
 
 	ret = crypto_register_alg(&aes_alg);
 	if (ret)
@@ -377,4 +562,3 @@ MODULE_ALIAS("aes");
 
 MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm");
 MODULE_LICENSE("GPL");
-
-- 
cgit v1.2.3-59-g8ed1b


From 2d74d405fc5ea78b20a4a2efd24201db424e07b1 Mon Sep 17 00:00:00 2001
From: Sebastian Siewior <sebastian@breakpoint.cc>
Date: Mon, 10 Dec 2007 15:49:41 +0800
Subject: [CRYPTO] s390-aes: Use correct encrypt/decrypt function in fallback

crypto_blkcipher_decrypt is wrong because it does not care about
the IV.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/s390/crypto/aes_s390.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index 85246112ab5e..46c97058ebe1 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -234,13 +234,10 @@ static int fallback_blk_dec(struct blkcipher_desc *desc,
 	struct crypto_blkcipher *tfm;
 	struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
 
-	memcpy(crypto_blkcipher_crt(sctx->fallback.blk)->iv, desc->info,
-		AES_BLOCK_SIZE);
-
 	tfm = desc->tfm;
 	desc->tfm = sctx->fallback.blk;
 
-	ret = crypto_blkcipher_decrypt(desc, dst, src, nbytes);
+	ret = crypto_blkcipher_decrypt_iv(desc, dst, src, nbytes);
 
 	desc->tfm = tfm;
 	return ret;
@@ -254,13 +251,10 @@ static int fallback_blk_enc(struct blkcipher_desc *desc,
 	struct crypto_blkcipher *tfm;
 	struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
 
-	memcpy(crypto_blkcipher_crt(sctx->fallback.blk)->iv, desc->info,
-		AES_BLOCK_SIZE);
-
 	tfm = desc->tfm;
 	desc->tfm = sctx->fallback.blk;
 
-	ret = crypto_blkcipher_encrypt(desc, dst, src, nbytes);
+	ret = crypto_blkcipher_encrypt_iv(desc, dst, src, nbytes);
 
 	desc->tfm = tfm;
 	return ret;
-- 
cgit v1.2.3-59-g8ed1b


From 974e4b752ee623854c5dc2bbfc7c7725029ce173 Mon Sep 17 00:00:00 2001
From: Tan Swee Heng <thesweeheng@gmail.com>
Date: Mon, 10 Dec 2007 15:52:56 +0800
Subject: [CRYPTO] salsa20_i586: Salsa20 stream cipher algorithm (i586 version)

This patch contains the salsa20-i586 implementation. The original
assembly code came from
<http://cr.yp.to/snuffle/salsa20/x86-pm/salsa20.s>. I have reformatted
it (added indents) so that it matches the other algorithms in
arch/x86/crypto.

Signed-off-by: Tan Swee Heng <thesweeheng@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/x86/crypto/Makefile              |    2 +
 arch/x86/crypto/salsa20-i586-asm_32.S | 1114 +++++++++++++++++++++++++++++++++
 arch/x86/crypto/salsa20_glue.c        |  127 ++++
 crypto/Kconfig                        |   15 +
 4 files changed, 1258 insertions(+)
 create mode 100644 arch/x86/crypto/salsa20-i586-asm_32.S
 create mode 100644 arch/x86/crypto/salsa20_glue.c

(limited to 'arch')

diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index b8fbb43df6d7..25cc8441046a 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -4,12 +4,14 @@
 
 obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o
 obj-$(CONFIG_CRYPTO_TWOFISH_586) += twofish-i586.o
+obj-$(CONFIG_CRYPTO_SALSA20_586) += salsa20-i586.o
 
 obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o
 obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
 
 aes-i586-y := aes-i586-asm_32.o aes_glue.o
 twofish-i586-y := twofish-i586-asm_32.o twofish_32.o
+salsa20-i586-y := salsa20-i586-asm_32.o salsa20_glue.o
 
 aes-x86_64-y := aes-x86_64-asm_64.o aes_glue.o
 twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_64.o
diff --git a/arch/x86/crypto/salsa20-i586-asm_32.S b/arch/x86/crypto/salsa20-i586-asm_32.S
new file mode 100644
index 000000000000..72eb306680b2
--- /dev/null
+++ b/arch/x86/crypto/salsa20-i586-asm_32.S
@@ -0,0 +1,1114 @@
+# salsa20_pm.s version 20051229
+# D. J. Bernstein
+# Public domain.
+
+# enter ECRYPT_encrypt_bytes
+.text
+.p2align 5
+.globl ECRYPT_encrypt_bytes
+ECRYPT_encrypt_bytes:
+	mov	%esp,%eax
+	and	$31,%eax
+	add	$256,%eax
+	sub	%eax,%esp
+	# eax_stack = eax
+	movl	%eax,80(%esp)
+	# ebx_stack = ebx
+	movl	%ebx,84(%esp)
+	# esi_stack = esi
+	movl	%esi,88(%esp)
+	# edi_stack = edi
+	movl	%edi,92(%esp)
+	# ebp_stack = ebp
+	movl	%ebp,96(%esp)
+	# x = arg1
+	movl	4(%esp,%eax),%edx
+	# m = arg2
+	movl	8(%esp,%eax),%esi
+	# out = arg3
+	movl	12(%esp,%eax),%edi
+	# bytes = arg4
+	movl	16(%esp,%eax),%ebx
+	# bytes -= 0
+	sub	$0,%ebx
+	# goto done if unsigned<=
+	jbe	._done
+._start:
+	# in0 = *(uint32 *) (x + 0)
+	movl	0(%edx),%eax
+	# in1 = *(uint32 *) (x + 4)
+	movl	4(%edx),%ecx
+	# in2 = *(uint32 *) (x + 8)
+	movl	8(%edx),%ebp
+	# j0 = in0
+	movl	%eax,164(%esp)
+	# in3 = *(uint32 *) (x + 12)
+	movl	12(%edx),%eax
+	# j1 = in1
+	movl	%ecx,168(%esp)
+	# in4 = *(uint32 *) (x + 16)
+	movl	16(%edx),%ecx
+	# j2 = in2
+	movl	%ebp,172(%esp)
+	# in5 = *(uint32 *) (x + 20)
+	movl	20(%edx),%ebp
+	# j3 = in3
+	movl	%eax,176(%esp)
+	# in6 = *(uint32 *) (x + 24)
+	movl	24(%edx),%eax
+	# j4 = in4
+	movl	%ecx,180(%esp)
+	# in7 = *(uint32 *) (x + 28)
+	movl	28(%edx),%ecx
+	# j5 = in5
+	movl	%ebp,184(%esp)
+	# in8 = *(uint32 *) (x + 32)
+	movl	32(%edx),%ebp
+	# j6 = in6
+	movl	%eax,188(%esp)
+	# in9 = *(uint32 *) (x + 36)
+	movl	36(%edx),%eax
+	# j7 = in7
+	movl	%ecx,192(%esp)
+	# in10 = *(uint32 *) (x + 40)
+	movl	40(%edx),%ecx
+	# j8 = in8
+	movl	%ebp,196(%esp)
+	# in11 = *(uint32 *) (x + 44)
+	movl	44(%edx),%ebp
+	# j9 = in9
+	movl	%eax,200(%esp)
+	# in12 = *(uint32 *) (x + 48)
+	movl	48(%edx),%eax
+	# j10 = in10
+	movl	%ecx,204(%esp)
+	# in13 = *(uint32 *) (x + 52)
+	movl	52(%edx),%ecx
+	# j11 = in11
+	movl	%ebp,208(%esp)
+	# in14 = *(uint32 *) (x + 56)
+	movl	56(%edx),%ebp
+	# j12 = in12
+	movl	%eax,212(%esp)
+	# in15 = *(uint32 *) (x + 60)
+	movl	60(%edx),%eax
+	# j13 = in13
+	movl	%ecx,216(%esp)
+	# j14 = in14
+	movl	%ebp,220(%esp)
+	# j15 = in15
+	movl	%eax,224(%esp)
+	# x_backup = x
+	movl	%edx,64(%esp)
+._bytesatleast1:
+	#   bytes - 64
+	cmp	$64,%ebx
+	#   goto nocopy if unsigned>=
+	jae	._nocopy
+	#     ctarget = out
+	movl	%edi,228(%esp)
+	#     out = &tmp
+	leal	0(%esp),%edi
+	#     i = bytes
+	mov	%ebx,%ecx
+	#     while (i) { *out++ = *m++; --i }
+	rep	movsb
+	#     out = &tmp
+	leal	0(%esp),%edi
+	#     m = &tmp
+	leal	0(%esp),%esi
+._nocopy:
+	#   out_backup = out
+	movl	%edi,72(%esp)
+	#   m_backup = m
+	movl	%esi,68(%esp)
+	#   bytes_backup = bytes
+	movl	%ebx,76(%esp)
+	#   in0 = j0
+	movl	164(%esp),%eax
+	#   in1 = j1
+	movl	168(%esp),%ecx
+	#   in2 = j2
+	movl	172(%esp),%edx
+	#   in3 = j3
+	movl	176(%esp),%ebx
+	#   x0 = in0
+	movl	%eax,100(%esp)
+	#   x1 = in1
+	movl	%ecx,104(%esp)
+	#   x2 = in2
+	movl	%edx,108(%esp)
+	#   x3 = in3
+	movl	%ebx,112(%esp)
+	#   in4 = j4
+	movl	180(%esp),%eax
+	#   in5 = j5
+	movl	184(%esp),%ecx
+	#   in6 = j6
+	movl	188(%esp),%edx
+	#   in7 = j7
+	movl	192(%esp),%ebx
+	#   x4 = in4
+	movl	%eax,116(%esp)
+	#   x5 = in5
+	movl	%ecx,120(%esp)
+	#   x6 = in6
+	movl	%edx,124(%esp)
+	#   x7 = in7
+	movl	%ebx,128(%esp)
+	#   in8 = j8
+	movl	196(%esp),%eax
+	#   in9 = j9
+	movl	200(%esp),%ecx
+	#   in10 = j10
+	movl	204(%esp),%edx
+	#   in11 = j11
+	movl	208(%esp),%ebx
+	#   x8 = in8
+	movl	%eax,132(%esp)
+	#   x9 = in9
+	movl	%ecx,136(%esp)
+	#   x10 = in10
+	movl	%edx,140(%esp)
+	#   x11 = in11
+	movl	%ebx,144(%esp)
+	#   in12 = j12
+	movl	212(%esp),%eax
+	#   in13 = j13
+	movl	216(%esp),%ecx
+	#   in14 = j14
+	movl	220(%esp),%edx
+	#   in15 = j15
+	movl	224(%esp),%ebx
+	#   x12 = in12
+	movl	%eax,148(%esp)
+	#   x13 = in13
+	movl	%ecx,152(%esp)
+	#   x14 = in14
+	movl	%edx,156(%esp)
+	#   x15 = in15
+	movl	%ebx,160(%esp)
+	#   i = 20
+	mov	$20,%ebp
+	# p = x0
+	movl	100(%esp),%eax
+	# s = x5
+	movl	120(%esp),%ecx
+	# t = x10
+	movl	140(%esp),%edx
+	# w = x15
+	movl	160(%esp),%ebx
+._mainloop:
+	# x0 = p
+	movl	%eax,100(%esp)
+	# 				x10 = t
+	movl	%edx,140(%esp)
+	# p += x12
+	addl	148(%esp),%eax
+	# 		x5 = s
+	movl	%ecx,120(%esp)
+	# 				t += x6
+	addl	124(%esp),%edx
+	# 						x15 = w
+	movl	%ebx,160(%esp)
+	# 		r = x1
+	movl	104(%esp),%esi
+	# 		r += s
+	add	%ecx,%esi
+	# 						v = x11
+	movl	144(%esp),%edi
+	# 						v += w
+	add	%ebx,%edi
+	# p <<<= 7
+	rol	$7,%eax
+	# p ^= x4
+	xorl	116(%esp),%eax
+	# 				t <<<= 7
+	rol	$7,%edx
+	# 				t ^= x14
+	xorl	156(%esp),%edx
+	# 		r <<<= 7
+	rol	$7,%esi
+	# 		r ^= x9
+	xorl	136(%esp),%esi
+	# 						v <<<= 7
+	rol	$7,%edi
+	# 						v ^= x3
+	xorl	112(%esp),%edi
+	# x4 = p
+	movl	%eax,116(%esp)
+	# 				x14 = t
+	movl	%edx,156(%esp)
+	# p += x0
+	addl	100(%esp),%eax
+	# 		x9 = r
+	movl	%esi,136(%esp)
+	# 				t += x10
+	addl	140(%esp),%edx
+	# 						x3 = v
+	movl	%edi,112(%esp)
+	# p <<<= 9
+	rol	$9,%eax
+	# p ^= x8
+	xorl	132(%esp),%eax
+	# 				t <<<= 9
+	rol	$9,%edx
+	# 				t ^= x2
+	xorl	108(%esp),%edx
+	# 		s += r
+	add	%esi,%ecx
+	# 		s <<<= 9
+	rol	$9,%ecx
+	# 		s ^= x13
+	xorl	152(%esp),%ecx
+	# 						w += v
+	add	%edi,%ebx
+	# 						w <<<= 9
+	rol	$9,%ebx
+	# 						w ^= x7
+	xorl	128(%esp),%ebx
+	# x8 = p
+	movl	%eax,132(%esp)
+	# 				x2 = t
+	movl	%edx,108(%esp)
+	# p += x4
+	addl	116(%esp),%eax
+	# 		x13 = s
+	movl	%ecx,152(%esp)
+	# 				t += x14
+	addl	156(%esp),%edx
+	# 						x7 = w
+	movl	%ebx,128(%esp)
+	# p <<<= 13
+	rol	$13,%eax
+	# p ^= x12
+	xorl	148(%esp),%eax
+	# 				t <<<= 13
+	rol	$13,%edx
+	# 				t ^= x6
+	xorl	124(%esp),%edx
+	# 		r += s
+	add	%ecx,%esi
+	# 		r <<<= 13
+	rol	$13,%esi
+	# 		r ^= x1
+	xorl	104(%esp),%esi
+	# 						v += w
+	add	%ebx,%edi
+	# 						v <<<= 13
+	rol	$13,%edi
+	# 						v ^= x11
+	xorl	144(%esp),%edi
+	# x12 = p
+	movl	%eax,148(%esp)
+	# 				x6 = t
+	movl	%edx,124(%esp)
+	# p += x8
+	addl	132(%esp),%eax
+	# 		x1 = r
+	movl	%esi,104(%esp)
+	# 				t += x2
+	addl	108(%esp),%edx
+	# 						x11 = v
+	movl	%edi,144(%esp)
+	# p <<<= 18
+	rol	$18,%eax
+	# p ^= x0
+	xorl	100(%esp),%eax
+	# 				t <<<= 18
+	rol	$18,%edx
+	# 				t ^= x10
+	xorl	140(%esp),%edx
+	# 		s += r
+	add	%esi,%ecx
+	# 		s <<<= 18
+	rol	$18,%ecx
+	# 		s ^= x5
+	xorl	120(%esp),%ecx
+	# 						w += v
+	add	%edi,%ebx
+	# 						w <<<= 18
+	rol	$18,%ebx
+	# 						w ^= x15
+	xorl	160(%esp),%ebx
+	# x0 = p
+	movl	%eax,100(%esp)
+	# 				x10 = t
+	movl	%edx,140(%esp)
+	# p += x3
+	addl	112(%esp),%eax
+	# p <<<= 7
+	rol	$7,%eax
+	# 		x5 = s
+	movl	%ecx,120(%esp)
+	# 				t += x9
+	addl	136(%esp),%edx
+	# 						x15 = w
+	movl	%ebx,160(%esp)
+	# 		r = x4
+	movl	116(%esp),%esi
+	# 		r += s
+	add	%ecx,%esi
+	# 						v = x14
+	movl	156(%esp),%edi
+	# 						v += w
+	add	%ebx,%edi
+	# p ^= x1
+	xorl	104(%esp),%eax
+	# 				t <<<= 7
+	rol	$7,%edx
+	# 				t ^= x11
+	xorl	144(%esp),%edx
+	# 		r <<<= 7
+	rol	$7,%esi
+	# 		r ^= x6
+	xorl	124(%esp),%esi
+	# 						v <<<= 7
+	rol	$7,%edi
+	# 						v ^= x12
+	xorl	148(%esp),%edi
+	# x1 = p
+	movl	%eax,104(%esp)
+	# 				x11 = t
+	movl	%edx,144(%esp)
+	# p += x0
+	addl	100(%esp),%eax
+	# 		x6 = r
+	movl	%esi,124(%esp)
+	# 				t += x10
+	addl	140(%esp),%edx
+	# 						x12 = v
+	movl	%edi,148(%esp)
+	# p <<<= 9
+	rol	$9,%eax
+	# p ^= x2
+	xorl	108(%esp),%eax
+	# 				t <<<= 9
+	rol	$9,%edx
+	# 				t ^= x8
+	xorl	132(%esp),%edx
+	# 		s += r
+	add	%esi,%ecx
+	# 		s <<<= 9
+	rol	$9,%ecx
+	# 		s ^= x7
+	xorl	128(%esp),%ecx
+	# 						w += v
+	add	%edi,%ebx
+	# 						w <<<= 9
+	rol	$9,%ebx
+	# 						w ^= x13
+	xorl	152(%esp),%ebx
+	# x2 = p
+	movl	%eax,108(%esp)
+	# 				x8 = t
+	movl	%edx,132(%esp)
+	# p += x1
+	addl	104(%esp),%eax
+	# 		x7 = s
+	movl	%ecx,128(%esp)
+	# 				t += x11
+	addl	144(%esp),%edx
+	# 						x13 = w
+	movl	%ebx,152(%esp)
+	# p <<<= 13
+	rol	$13,%eax
+	# p ^= x3
+	xorl	112(%esp),%eax
+	# 				t <<<= 13
+	rol	$13,%edx
+	# 				t ^= x9
+	xorl	136(%esp),%edx
+	# 		r += s
+	add	%ecx,%esi
+	# 		r <<<= 13
+	rol	$13,%esi
+	# 		r ^= x4
+	xorl	116(%esp),%esi
+	# 						v += w
+	add	%ebx,%edi
+	# 						v <<<= 13
+	rol	$13,%edi
+	# 						v ^= x14
+	xorl	156(%esp),%edi
+	# x3 = p
+	movl	%eax,112(%esp)
+	# 				x9 = t
+	movl	%edx,136(%esp)
+	# p += x2
+	addl	108(%esp),%eax
+	# 		x4 = r
+	movl	%esi,116(%esp)
+	# 				t += x8
+	addl	132(%esp),%edx
+	# 						x14 = v
+	movl	%edi,156(%esp)
+	# p <<<= 18
+	rol	$18,%eax
+	# p ^= x0
+	xorl	100(%esp),%eax
+	# 				t <<<= 18
+	rol	$18,%edx
+	# 				t ^= x10
+	xorl	140(%esp),%edx
+	# 		s += r
+	add	%esi,%ecx
+	# 		s <<<= 18
+	rol	$18,%ecx
+	# 		s ^= x5
+	xorl	120(%esp),%ecx
+	# 						w += v
+	add	%edi,%ebx
+	# 						w <<<= 18
+	rol	$18,%ebx
+	# 						w ^= x15
+	xorl	160(%esp),%ebx
+	# x0 = p
+	movl	%eax,100(%esp)
+	# 				x10 = t
+	movl	%edx,140(%esp)
+	# p += x12
+	addl	148(%esp),%eax
+	# 		x5 = s
+	movl	%ecx,120(%esp)
+	# 				t += x6
+	addl	124(%esp),%edx
+	# 						x15 = w
+	movl	%ebx,160(%esp)
+	# 		r = x1
+	movl	104(%esp),%esi
+	# 		r += s
+	add	%ecx,%esi
+	# 						v = x11
+	movl	144(%esp),%edi
+	# 						v += w
+	add	%ebx,%edi
+	# p <<<= 7
+	rol	$7,%eax
+	# p ^= x4
+	xorl	116(%esp),%eax
+	# 				t <<<= 7
+	rol	$7,%edx
+	# 				t ^= x14
+	xorl	156(%esp),%edx
+	# 		r <<<= 7
+	rol	$7,%esi
+	# 		r ^= x9
+	xorl	136(%esp),%esi
+	# 						v <<<= 7
+	rol	$7,%edi
+	# 						v ^= x3
+	xorl	112(%esp),%edi
+	# x4 = p
+	movl	%eax,116(%esp)
+	# 				x14 = t
+	movl	%edx,156(%esp)
+	# p += x0
+	addl	100(%esp),%eax
+	# 		x9 = r
+	movl	%esi,136(%esp)
+	# 				t += x10
+	addl	140(%esp),%edx
+	# 						x3 = v
+	movl	%edi,112(%esp)
+	# p <<<= 9
+	rol	$9,%eax
+	# p ^= x8
+	xorl	132(%esp),%eax
+	# 				t <<<= 9
+	rol	$9,%edx
+	# 				t ^= x2
+	xorl	108(%esp),%edx
+	# 		s += r
+	add	%esi,%ecx
+	# 		s <<<= 9
+	rol	$9,%ecx
+	# 		s ^= x13
+	xorl	152(%esp),%ecx
+	# 						w += v
+	add	%edi,%ebx
+	# 						w <<<= 9
+	rol	$9,%ebx
+	# 						w ^= x7
+	xorl	128(%esp),%ebx
+	# x8 = p
+	movl	%eax,132(%esp)
+	# 				x2 = t
+	movl	%edx,108(%esp)
+	# p += x4
+	addl	116(%esp),%eax
+	# 		x13 = s
+	movl	%ecx,152(%esp)
+	# 				t += x14
+	addl	156(%esp),%edx
+	# 						x7 = w
+	movl	%ebx,128(%esp)
+	# p <<<= 13
+	rol	$13,%eax
+	# p ^= x12
+	xorl	148(%esp),%eax
+	# 				t <<<= 13
+	rol	$13,%edx
+	# 				t ^= x6
+	xorl	124(%esp),%edx
+	# 		r += s
+	add	%ecx,%esi
+	# 		r <<<= 13
+	rol	$13,%esi
+	# 		r ^= x1
+	xorl	104(%esp),%esi
+	# 						v += w
+	add	%ebx,%edi
+	# 						v <<<= 13
+	rol	$13,%edi
+	# 						v ^= x11
+	xorl	144(%esp),%edi
+	# x12 = p
+	movl	%eax,148(%esp)
+	# 				x6 = t
+	movl	%edx,124(%esp)
+	# p += x8
+	addl	132(%esp),%eax
+	# 		x1 = r
+	movl	%esi,104(%esp)
+	# 				t += x2
+	addl	108(%esp),%edx
+	# 						x11 = v
+	movl	%edi,144(%esp)
+	# p <<<= 18
+	rol	$18,%eax
+	# p ^= x0
+	xorl	100(%esp),%eax
+	# 				t <<<= 18
+	rol	$18,%edx
+	# 				t ^= x10
+	xorl	140(%esp),%edx
+	# 		s += r
+	add	%esi,%ecx
+	# 		s <<<= 18
+	rol	$18,%ecx
+	# 		s ^= x5
+	xorl	120(%esp),%ecx
+	# 						w += v
+	add	%edi,%ebx
+	# 						w <<<= 18
+	rol	$18,%ebx
+	# 						w ^= x15
+	xorl	160(%esp),%ebx
+	# x0 = p
+	movl	%eax,100(%esp)
+	# 				x10 = t
+	movl	%edx,140(%esp)
+	# p += x3
+	addl	112(%esp),%eax
+	# p <<<= 7
+	rol	$7,%eax
+	# 		x5 = s
+	movl	%ecx,120(%esp)
+	# 				t += x9
+	addl	136(%esp),%edx
+	# 						x15 = w
+	movl	%ebx,160(%esp)
+	# 		r = x4
+	movl	116(%esp),%esi
+	# 		r += s
+	add	%ecx,%esi
+	# 						v = x14
+	movl	156(%esp),%edi
+	# 						v += w
+	add	%ebx,%edi
+	# p ^= x1
+	xorl	104(%esp),%eax
+	# 				t <<<= 7
+	rol	$7,%edx
+	# 				t ^= x11
+	xorl	144(%esp),%edx
+	# 		r <<<= 7
+	rol	$7,%esi
+	# 		r ^= x6
+	xorl	124(%esp),%esi
+	# 						v <<<= 7
+	rol	$7,%edi
+	# 						v ^= x12
+	xorl	148(%esp),%edi
+	# x1 = p
+	movl	%eax,104(%esp)
+	# 				x11 = t
+	movl	%edx,144(%esp)
+	# p += x0
+	addl	100(%esp),%eax
+	# 		x6 = r
+	movl	%esi,124(%esp)
+	# 				t += x10
+	addl	140(%esp),%edx
+	# 						x12 = v
+	movl	%edi,148(%esp)
+	# p <<<= 9
+	rol	$9,%eax
+	# p ^= x2
+	xorl	108(%esp),%eax
+	# 				t <<<= 9
+	rol	$9,%edx
+	# 				t ^= x8
+	xorl	132(%esp),%edx
+	# 		s += r
+	add	%esi,%ecx
+	# 		s <<<= 9
+	rol	$9,%ecx
+	# 		s ^= x7
+	xorl	128(%esp),%ecx
+	# 						w += v
+	add	%edi,%ebx
+	# 						w <<<= 9
+	rol	$9,%ebx
+	# 						w ^= x13
+	xorl	152(%esp),%ebx
+	# x2 = p
+	movl	%eax,108(%esp)
+	# 				x8 = t
+	movl	%edx,132(%esp)
+	# p += x1
+	addl	104(%esp),%eax
+	# 		x7 = s
+	movl	%ecx,128(%esp)
+	# 				t += x11
+	addl	144(%esp),%edx
+	# 						x13 = w
+	movl	%ebx,152(%esp)
+	# p <<<= 13
+	rol	$13,%eax
+	# p ^= x3
+	xorl	112(%esp),%eax
+	# 				t <<<= 13
+	rol	$13,%edx
+	# 				t ^= x9
+	xorl	136(%esp),%edx
+	# 		r += s
+	add	%ecx,%esi
+	# 		r <<<= 13
+	rol	$13,%esi
+	# 		r ^= x4
+	xorl	116(%esp),%esi
+	# 						v += w
+	add	%ebx,%edi
+	# 						v <<<= 13
+	rol	$13,%edi
+	# 						v ^= x14
+	xorl	156(%esp),%edi
+	# x3 = p
+	movl	%eax,112(%esp)
+	# 				x9 = t
+	movl	%edx,136(%esp)
+	# p += x2
+	addl	108(%esp),%eax
+	# 		x4 = r
+	movl	%esi,116(%esp)
+	# 				t += x8
+	addl	132(%esp),%edx
+	# 						x14 = v
+	movl	%edi,156(%esp)
+	# p <<<= 18
+	rol	$18,%eax
+	# p ^= x0
+	xorl	100(%esp),%eax
+	# 				t <<<= 18
+	rol	$18,%edx
+	# 				t ^= x10
+	xorl	140(%esp),%edx
+	# 		s += r
+	add	%esi,%ecx
+	# 		s <<<= 18
+	rol	$18,%ecx
+	# 		s ^= x5
+	xorl	120(%esp),%ecx
+	# 						w += v
+	add	%edi,%ebx
+	# 						w <<<= 18
+	rol	$18,%ebx
+	# 						w ^= x15
+	xorl	160(%esp),%ebx
+	# i -= 4
+	sub	$4,%ebp
+	# goto mainloop if unsigned >
+	ja	._mainloop
+	# x0 = p
+	movl	%eax,100(%esp)
+	# x5 = s
+	movl	%ecx,120(%esp)
+	# x10 = t
+	movl	%edx,140(%esp)
+	# x15 = w
+	movl	%ebx,160(%esp)
+	#   out = out_backup
+	movl	72(%esp),%edi
+	#   m = m_backup
+	movl	68(%esp),%esi
+	#   in0 = x0
+	movl	100(%esp),%eax
+	#   in1 = x1
+	movl	104(%esp),%ecx
+	#   in0 += j0
+	addl	164(%esp),%eax
+	#   in1 += j1
+	addl	168(%esp),%ecx
+	#   in0 ^= *(uint32 *) (m + 0)
+	xorl	0(%esi),%eax
+	#   in1 ^= *(uint32 *) (m + 4)
+	xorl	4(%esi),%ecx
+	#   *(uint32 *) (out + 0) = in0
+	movl	%eax,0(%edi)
+	#   *(uint32 *) (out + 4) = in1
+	movl	%ecx,4(%edi)
+	#   in2 = x2
+	movl	108(%esp),%eax
+	#   in3 = x3
+	movl	112(%esp),%ecx
+	#   in2 += j2
+	addl	172(%esp),%eax
+	#   in3 += j3
+	addl	176(%esp),%ecx
+	#   in2 ^= *(uint32 *) (m + 8)
+	xorl	8(%esi),%eax
+	#   in3 ^= *(uint32 *) (m + 12)
+	xorl	12(%esi),%ecx
+	#   *(uint32 *) (out + 8) = in2
+	movl	%eax,8(%edi)
+	#   *(uint32 *) (out + 12) = in3
+	movl	%ecx,12(%edi)
+	#   in4 = x4
+	movl	116(%esp),%eax
+	#   in5 = x5
+	movl	120(%esp),%ecx
+	#   in4 += j4
+	addl	180(%esp),%eax
+	#   in5 += j5
+	addl	184(%esp),%ecx
+	#   in4 ^= *(uint32 *) (m + 16)
+	xorl	16(%esi),%eax
+	#   in5 ^= *(uint32 *) (m + 20)
+	xorl	20(%esi),%ecx
+	#   *(uint32 *) (out + 16) = in4
+	movl	%eax,16(%edi)
+	#   *(uint32 *) (out + 20) = in5
+	movl	%ecx,20(%edi)
+	#   in6 = x6
+	movl	124(%esp),%eax
+	#   in7 = x7
+	movl	128(%esp),%ecx
+	#   in6 += j6
+	addl	188(%esp),%eax
+	#   in7 += j7
+	addl	192(%esp),%ecx
+	#   in6 ^= *(uint32 *) (m + 24)
+	xorl	24(%esi),%eax
+	#   in7 ^= *(uint32 *) (m + 28)
+	xorl	28(%esi),%ecx
+	#   *(uint32 *) (out + 24) = in6
+	movl	%eax,24(%edi)
+	#   *(uint32 *) (out + 28) = in7
+	movl	%ecx,28(%edi)
+	#   in8 = x8
+	movl	132(%esp),%eax
+	#   in9 = x9
+	movl	136(%esp),%ecx
+	#   in8 += j8
+	addl	196(%esp),%eax
+	#   in9 += j9
+	addl	200(%esp),%ecx
+	#   in8 ^= *(uint32 *) (m + 32)
+	xorl	32(%esi),%eax
+	#   in9 ^= *(uint32 *) (m + 36)
+	xorl	36(%esi),%ecx
+	#   *(uint32 *) (out + 32) = in8
+	movl	%eax,32(%edi)
+	#   *(uint32 *) (out + 36) = in9
+	movl	%ecx,36(%edi)
+	#   in10 = x10
+	movl	140(%esp),%eax
+	#   in11 = x11
+	movl	144(%esp),%ecx
+	#   in10 += j10
+	addl	204(%esp),%eax
+	#   in11 += j11
+	addl	208(%esp),%ecx
+	#   in10 ^= *(uint32 *) (m + 40)
+	xorl	40(%esi),%eax
+	#   in11 ^= *(uint32 *) (m + 44)
+	xorl	44(%esi),%ecx
+	#   *(uint32 *) (out + 40) = in10
+	movl	%eax,40(%edi)
+	#   *(uint32 *) (out + 44) = in11
+	movl	%ecx,44(%edi)
+	#   in12 = x12
+	movl	148(%esp),%eax
+	#   in13 = x13
+	movl	152(%esp),%ecx
+	#   in12 += j12
+	addl	212(%esp),%eax
+	#   in13 += j13
+	addl	216(%esp),%ecx
+	#   in12 ^= *(uint32 *) (m + 48)
+	xorl	48(%esi),%eax
+	#   in13 ^= *(uint32 *) (m + 52)
+	xorl	52(%esi),%ecx
+	#   *(uint32 *) (out + 48) = in12
+	movl	%eax,48(%edi)
+	#   *(uint32 *) (out + 52) = in13
+	movl	%ecx,52(%edi)
+	#   in14 = x14
+	movl	156(%esp),%eax
+	#   in15 = x15
+	movl	160(%esp),%ecx
+	#   in14 += j14
+	addl	220(%esp),%eax
+	#   in15 += j15
+	addl	224(%esp),%ecx
+	#   in14 ^= *(uint32 *) (m + 56)
+	xorl	56(%esi),%eax
+	#   in15 ^= *(uint32 *) (m + 60)
+	xorl	60(%esi),%ecx
+	#   *(uint32 *) (out + 56) = in14
+	movl	%eax,56(%edi)
+	#   *(uint32 *) (out + 60) = in15
+	movl	%ecx,60(%edi)
+	#   bytes = bytes_backup
+	movl	76(%esp),%ebx
+	#   in8 = j8
+	movl	196(%esp),%eax
+	#   in9 = j9
+	movl	200(%esp),%ecx
+	#   in8 += 1
+	add	$1,%eax
+	#   in9 += 0 + carry
+	adc	$0,%ecx
+	#   j8 = in8
+	movl	%eax,196(%esp)
+	#   j9 = in9
+	movl	%ecx,200(%esp)
+	#   bytes - 64
+	cmp	$64,%ebx
+	#   goto bytesatleast65 if unsigned>
+	ja	._bytesatleast65
+	#     goto bytesatleast64 if unsigned>=
+	jae	._bytesatleast64
+	#       m = out
+	mov	%edi,%esi
+	#       out = ctarget
+	movl	228(%esp),%edi
+	#       i = bytes
+	mov	%ebx,%ecx
+	#       while (i) { *out++ = *m++; --i }
+	rep	movsb
+._bytesatleast64:
+	#     x = x_backup
+	movl	64(%esp),%eax
+	#     in8 = j8
+	movl	196(%esp),%ecx
+	#     in9 = j9
+	movl	200(%esp),%edx
+	#     *(uint32 *) (x + 32) = in8
+	movl	%ecx,32(%eax)
+	#     *(uint32 *) (x + 36) = in9
+	movl	%edx,36(%eax)
+._done:
+	#     eax = eax_stack
+	movl	80(%esp),%eax
+	#     ebx = ebx_stack
+	movl	84(%esp),%ebx
+	#     esi = esi_stack
+	movl	88(%esp),%esi
+	#     edi = edi_stack
+	movl	92(%esp),%edi
+	#     ebp = ebp_stack
+	movl	96(%esp),%ebp
+	#     leave
+	add	%eax,%esp
+	ret
+._bytesatleast65:
+	#   bytes -= 64
+	sub	$64,%ebx
+	#   out += 64
+	add	$64,%edi
+	#   m += 64
+	add	$64,%esi
+	# goto bytesatleast1
+	jmp	._bytesatleast1
+# enter ECRYPT_keysetup
+.text
+.p2align 5
+.globl ECRYPT_keysetup
+ECRYPT_keysetup:
+	mov	%esp,%eax
+	and	$31,%eax
+	add	$256,%eax
+	sub	%eax,%esp
+	#   eax_stack = eax
+	movl	%eax,64(%esp)
+	#   ebx_stack = ebx
+	movl	%ebx,68(%esp)
+	#   esi_stack = esi
+	movl	%esi,72(%esp)
+	#   edi_stack = edi
+	movl	%edi,76(%esp)
+	#   ebp_stack = ebp
+	movl	%ebp,80(%esp)
+	#   k = arg2
+	movl	8(%esp,%eax),%ecx
+	#   kbits = arg3
+	movl	12(%esp,%eax),%edx
+	#   x = arg1
+	movl	4(%esp,%eax),%eax
+	#   in1 = *(uint32 *) (k + 0)
+	movl	0(%ecx),%ebx
+	#   in2 = *(uint32 *) (k + 4)
+	movl	4(%ecx),%esi
+	#   in3 = *(uint32 *) (k + 8)
+	movl	8(%ecx),%edi
+	#   in4 = *(uint32 *) (k + 12)
+	movl	12(%ecx),%ebp
+	#   *(uint32 *) (x + 4) = in1
+	movl	%ebx,4(%eax)
+	#   *(uint32 *) (x + 8) = in2
+	movl	%esi,8(%eax)
+	#   *(uint32 *) (x + 12) = in3
+	movl	%edi,12(%eax)
+	#   *(uint32 *) (x + 16) = in4
+	movl	%ebp,16(%eax)
+	#   kbits - 256
+	cmp	$256,%edx
+	#   goto kbits128 if unsigned<
+	jb	._kbits128
+._kbits256:
+	#     in11 = *(uint32 *) (k + 16)
+	movl	16(%ecx),%edx
+	#     in12 = *(uint32 *) (k + 20)
+	movl	20(%ecx),%ebx
+	#     in13 = *(uint32 *) (k + 24)
+	movl	24(%ecx),%esi
+	#     in14 = *(uint32 *) (k + 28)
+	movl	28(%ecx),%ecx
+	#     *(uint32 *) (x + 44) = in11
+	movl	%edx,44(%eax)
+	#     *(uint32 *) (x + 48) = in12
+	movl	%ebx,48(%eax)
+	#     *(uint32 *) (x + 52) = in13
+	movl	%esi,52(%eax)
+	#     *(uint32 *) (x + 56) = in14
+	movl	%ecx,56(%eax)
+	#     in0 = 1634760805
+	mov	$1634760805,%ecx
+	#     in5 = 857760878
+	mov	$857760878,%edx
+	#     in10 = 2036477234
+	mov	$2036477234,%ebx
+	#     in15 = 1797285236
+	mov	$1797285236,%esi
+	#     *(uint32 *) (x + 0) = in0
+	movl	%ecx,0(%eax)
+	#     *(uint32 *) (x + 20) = in5
+	movl	%edx,20(%eax)
+	#     *(uint32 *) (x + 40) = in10
+	movl	%ebx,40(%eax)
+	#     *(uint32 *) (x + 60) = in15
+	movl	%esi,60(%eax)
+	#   goto keysetupdone
+	jmp	._keysetupdone
+._kbits128:
+	#     in11 = *(uint32 *) (k + 0)
+	movl	0(%ecx),%edx
+	#     in12 = *(uint32 *) (k + 4)
+	movl	4(%ecx),%ebx
+	#     in13 = *(uint32 *) (k + 8)
+	movl	8(%ecx),%esi
+	#     in14 = *(uint32 *) (k + 12)
+	movl	12(%ecx),%ecx
+	#     *(uint32 *) (x + 44) = in11
+	movl	%edx,44(%eax)
+	#     *(uint32 *) (x + 48) = in12
+	movl	%ebx,48(%eax)
+	#     *(uint32 *) (x + 52) = in13
+	movl	%esi,52(%eax)
+	#     *(uint32 *) (x + 56) = in14
+	movl	%ecx,56(%eax)
+	#     in0 = 1634760805
+	mov	$1634760805,%ecx
+	#     in5 = 824206446
+	mov	$824206446,%edx
+	#     in10 = 2036477238
+	mov	$2036477238,%ebx
+	#     in15 = 1797285236
+	mov	$1797285236,%esi
+	#     *(uint32 *) (x + 0) = in0
+	movl	%ecx,0(%eax)
+	#     *(uint32 *) (x + 20) = in5
+	movl	%edx,20(%eax)
+	#     *(uint32 *) (x + 40) = in10
+	movl	%ebx,40(%eax)
+	#     *(uint32 *) (x + 60) = in15
+	movl	%esi,60(%eax)
+._keysetupdone:
+	#   eax = eax_stack
+	movl	64(%esp),%eax
+	#   ebx = ebx_stack
+	movl	68(%esp),%ebx
+	#   esi = esi_stack
+	movl	72(%esp),%esi
+	#   edi = edi_stack
+	movl	76(%esp),%edi
+	#   ebp = ebp_stack
+	movl	80(%esp),%ebp
+	# leave
+	add	%eax,%esp
+	ret
+# enter ECRYPT_ivsetup
+.text
+.p2align 5
+.globl ECRYPT_ivsetup
+ECRYPT_ivsetup:
+	mov	%esp,%eax
+	and	$31,%eax
+	add	$256,%eax
+	sub	%eax,%esp
+	#   eax_stack = eax
+	movl	%eax,64(%esp)
+	#   ebx_stack = ebx
+	movl	%ebx,68(%esp)
+	#   esi_stack = esi
+	movl	%esi,72(%esp)
+	#   edi_stack = edi
+	movl	%edi,76(%esp)
+	#   ebp_stack = ebp
+	movl	%ebp,80(%esp)
+	#   iv = arg2
+	movl	8(%esp,%eax),%ecx
+	#   x = arg1
+	movl	4(%esp,%eax),%eax
+	#   in6 = *(uint32 *) (iv + 0)
+	movl	0(%ecx),%edx
+	#   in7 = *(uint32 *) (iv + 4)
+	movl	4(%ecx),%ecx
+	#   in8 = 0
+	mov	$0,%ebx
+	#   in9 = 0
+	mov	$0,%esi
+	#   *(uint32 *) (x + 24) = in6
+	movl	%edx,24(%eax)
+	#   *(uint32 *) (x + 28) = in7
+	movl	%ecx,28(%eax)
+	#   *(uint32 *) (x + 32) = in8
+	movl	%ebx,32(%eax)
+	#   *(uint32 *) (x + 36) = in9
+	movl	%esi,36(%eax)
+	#   eax = eax_stack
+	movl	64(%esp),%eax
+	#   ebx = ebx_stack
+	movl	68(%esp),%ebx
+	#   esi = esi_stack
+	movl	72(%esp),%esi
+	#   edi = edi_stack
+	movl	76(%esp),%edi
+	#   ebp = ebp_stack
+	movl	80(%esp),%ebp
+	# leave
+	add	%eax,%esp
+	ret
diff --git a/arch/x86/crypto/salsa20_glue.c b/arch/x86/crypto/salsa20_glue.c
new file mode 100644
index 000000000000..3be443995ed6
--- /dev/null
+++ b/arch/x86/crypto/salsa20_glue.c
@@ -0,0 +1,127 @@
+/*
+ * Glue code for optimized assembly version of  Salsa20.
+ *
+ * Copyright (c) 2007 Tan Swee Heng <thesweeheng@gmail.com>
+ *
+ * The assembly codes are public domain assembly codes written by Daniel. J.
+ * Bernstein <djb@cr.yp.to>. The codes are modified to include indentation
+ * and to remove extraneous comments and functions that are not needed.
+ * - i586 version, renamed as salsa20-i586-asm_32.S
+ *   available from <http://cr.yp.to/snuffle/salsa20/x86-pm/salsa20.s>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+
+#include <crypto/algapi.h>
+#include <linux/module.h>
+#include <linux/crypto.h>
+
+#define SALSA20_IV_SIZE        8U
+#define SALSA20_MIN_KEY_SIZE  16U
+#define SALSA20_MAX_KEY_SIZE  32U
+
+// use the ECRYPT_* function names
+#define salsa20_keysetup        ECRYPT_keysetup
+#define salsa20_ivsetup         ECRYPT_ivsetup
+#define salsa20_encrypt_bytes   ECRYPT_encrypt_bytes
+
+struct salsa20_ctx
+{
+	u32 input[16];
+};
+
+asmlinkage void salsa20_keysetup(struct salsa20_ctx *ctx, const u8 *k,
+				 u32 keysize, u32 ivsize);
+asmlinkage void salsa20_ivsetup(struct salsa20_ctx *ctx, const u8 *iv);
+asmlinkage void salsa20_encrypt_bytes(struct salsa20_ctx *ctx,
+				      const u8 *src, u8 *dst, u32 bytes);
+
+static int setkey(struct crypto_tfm *tfm, const u8 *key,
+		  unsigned int keysize)
+{
+	struct salsa20_ctx *ctx = crypto_tfm_ctx(tfm);
+	salsa20_keysetup(ctx, key, keysize*8, SALSA20_IV_SIZE*8);
+	return 0;
+}
+
+static int encrypt(struct blkcipher_desc *desc,
+		   struct scatterlist *dst, struct scatterlist *src,
+		   unsigned int nbytes)
+{
+	struct blkcipher_walk walk;
+	struct crypto_blkcipher *tfm = desc->tfm;
+	struct salsa20_ctx *ctx = crypto_blkcipher_ctx(tfm);
+	int err;
+
+	blkcipher_walk_init(&walk, dst, src, nbytes);
+	err = blkcipher_walk_virt_block(desc, &walk, 64);
+
+	salsa20_ivsetup(ctx, walk.iv);
+
+	if (likely(walk.nbytes == nbytes))
+	{
+		salsa20_encrypt_bytes(ctx, walk.src.virt.addr,
+				      walk.dst.virt.addr, nbytes);
+		return blkcipher_walk_done(desc, &walk, 0);
+	}
+
+	while (walk.nbytes >= 64) {
+		salsa20_encrypt_bytes(ctx, walk.src.virt.addr,
+				      walk.dst.virt.addr,
+				      walk.nbytes - (walk.nbytes % 64));
+		err = blkcipher_walk_done(desc, &walk, walk.nbytes % 64);
+	}
+
+	if (walk.nbytes) {
+		salsa20_encrypt_bytes(ctx, walk.src.virt.addr,
+				      walk.dst.virt.addr, walk.nbytes);
+		err = blkcipher_walk_done(desc, &walk, 0);
+	}
+
+	return err;
+}
+
+static struct crypto_alg alg = {
+	.cra_name           =   "salsa20",
+	.cra_driver_name    =   "salsa20-asm",
+	.cra_priority       =   200,
+	.cra_flags          =   CRYPTO_ALG_TYPE_BLKCIPHER,
+	.cra_type           =   &crypto_blkcipher_type,
+	.cra_blocksize      =   1,
+	.cra_ctxsize        =   sizeof(struct salsa20_ctx),
+	.cra_alignmask      =	3,
+	.cra_module         =   THIS_MODULE,
+	.cra_list           =   LIST_HEAD_INIT(alg.cra_list),
+	.cra_u              =   {
+		.blkcipher = {
+			.setkey         =   setkey,
+			.encrypt        =   encrypt,
+			.decrypt        =   encrypt,
+			.min_keysize    =   SALSA20_MIN_KEY_SIZE,
+			.max_keysize    =   SALSA20_MAX_KEY_SIZE,
+			.ivsize         =   SALSA20_IV_SIZE,
+		}
+	}
+};
+
+static int __init init(void)
+{
+	return crypto_register_alg(&alg);
+}
+
+static void __exit fini(void)
+{
+	crypto_unregister_alg(&alg);
+}
+
+module_init(init);
+module_exit(fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION ("Salsa20 stream cipher algorithm (optimized assembly version)");
+MODULE_ALIAS("salsa20");
+MODULE_ALIAS("salsa20-asm");
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 6c086eedc14f..221356b4150c 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -489,6 +489,21 @@ config CRYPTO_SALSA20
 	  The Salsa20 stream cipher algorithm is designed by Daniel J.
 	  Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
 
+config CRYPTO_SALSA20_586
+	tristate "Salsa20 stream cipher algorithm (i586) (EXPERIMENTAL)"
+	depends on (X86 || UML_X86) && !64BIT
+	depends on EXPERIMENTAL
+	select CRYPTO_BLKCIPHER
+	select CRYPTO_SALSA20
+	help
+	  Salsa20 stream cipher algorithm.
+
+	  Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
+	  Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
+
+	  The Salsa20 stream cipher algorithm is designed by Daniel J.
+	  Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
+
 config CRYPTO_DEFLATE
 	tristate "Deflate compression algorithm"
 	select CRYPTO_ALGAPI
-- 
cgit v1.2.3-59-g8ed1b


From 9a7dafbba47384c330779c75a1546684efaa8c1a Mon Sep 17 00:00:00 2001
From: Tan Swee Heng <thesweeheng@gmail.com>
Date: Tue, 18 Dec 2007 00:04:40 +0800
Subject: [CRYPTO] salsa20: Add x86-64 assembly version

This is the x86-64 version of the Salsa20 stream cipher algorithm. The
original assembly code came from
<http://cr.yp.to/snuffle/salsa20/amd64-3/salsa20.s>. It has been
reformatted for clarity.

Signed-off-by: Tan Swee Heng <thesweeheng@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/x86/crypto/Makefile                |   2 +
 arch/x86/crypto/salsa20-x86_64-asm_64.S | 920 ++++++++++++++++++++++++++++++++
 arch/x86/crypto/salsa20_glue.c          |   2 +
 crypto/Kconfig                          |  15 +
 4 files changed, 939 insertions(+)
 create mode 100644 arch/x86/crypto/salsa20-x86_64-asm_64.S

(limited to 'arch')

diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 25cc8441046a..09200e12f14d 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_CRYPTO_SALSA20_586) += salsa20-i586.o
 
 obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o
 obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
+obj-$(CONFIG_CRYPTO_SALSA20_X86_64) += salsa20-x86_64.o
 
 aes-i586-y := aes-i586-asm_32.o aes_glue.o
 twofish-i586-y := twofish-i586-asm_32.o twofish_32.o
@@ -15,3 +16,4 @@ salsa20-i586-y := salsa20-i586-asm_32.o salsa20_glue.o
 
 aes-x86_64-y := aes-x86_64-asm_64.o aes_glue.o
 twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_64.o
+salsa20-x86_64-y := salsa20-x86_64-asm_64.o salsa20_glue.o
diff --git a/arch/x86/crypto/salsa20-x86_64-asm_64.S b/arch/x86/crypto/salsa20-x86_64-asm_64.S
new file mode 100644
index 000000000000..6214a9b09706
--- /dev/null
+++ b/arch/x86/crypto/salsa20-x86_64-asm_64.S
@@ -0,0 +1,920 @@
+# enter ECRYPT_encrypt_bytes
+.text
+.p2align 5
+.globl ECRYPT_encrypt_bytes
+ECRYPT_encrypt_bytes:
+	mov	%rsp,%r11
+	and	$31,%r11
+	add	$256,%r11
+	sub	%r11,%rsp
+	# x = arg1
+	mov	%rdi,%r8
+	# m = arg2
+	mov	%rsi,%rsi
+	# out = arg3
+	mov	%rdx,%rdi
+	# bytes = arg4
+	mov	%rcx,%rdx
+	#               unsigned>? bytes - 0
+	cmp	$0,%rdx
+	# comment:fp stack unchanged by jump
+	# goto done if !unsigned>
+	jbe	._done
+	# comment:fp stack unchanged by fallthrough
+# start:
+._start:
+	# r11_stack = r11
+	movq	%r11,0(%rsp)
+	# r12_stack = r12
+	movq	%r12,8(%rsp)
+	# r13_stack = r13
+	movq	%r13,16(%rsp)
+	# r14_stack = r14
+	movq	%r14,24(%rsp)
+	# r15_stack = r15
+	movq	%r15,32(%rsp)
+	# rbx_stack = rbx
+	movq	%rbx,40(%rsp)
+	# rbp_stack = rbp
+	movq	%rbp,48(%rsp)
+	# in0 = *(uint64 *) (x + 0)
+	movq	0(%r8),%rcx
+	# in2 = *(uint64 *) (x + 8)
+	movq	8(%r8),%r9
+	# in4 = *(uint64 *) (x + 16)
+	movq	16(%r8),%rax
+	# in6 = *(uint64 *) (x + 24)
+	movq	24(%r8),%r10
+	# in8 = *(uint64 *) (x + 32)
+	movq	32(%r8),%r11
+	# in10 = *(uint64 *) (x + 40)
+	movq	40(%r8),%r12
+	# in12 = *(uint64 *) (x + 48)
+	movq	48(%r8),%r13
+	# in14 = *(uint64 *) (x + 56)
+	movq	56(%r8),%r14
+	# j0 = in0
+	movq	%rcx,56(%rsp)
+	# j2 = in2
+	movq	%r9,64(%rsp)
+	# j4 = in4
+	movq	%rax,72(%rsp)
+	# j6 = in6
+	movq	%r10,80(%rsp)
+	# j8 = in8
+	movq	%r11,88(%rsp)
+	# j10 = in10
+	movq	%r12,96(%rsp)
+	# j12 = in12
+	movq	%r13,104(%rsp)
+	# j14 = in14
+	movq	%r14,112(%rsp)
+	# x_backup = x
+	movq	%r8,120(%rsp)
+# bytesatleast1:
+._bytesatleast1:
+	#                   unsigned<? bytes - 64
+	cmp	$64,%rdx
+	# comment:fp stack unchanged by jump
+	#   goto nocopy if !unsigned<
+	jae	._nocopy
+	#     ctarget = out
+	movq	%rdi,128(%rsp)
+	#     out = &tmp
+	leaq	192(%rsp),%rdi
+	#     i = bytes
+	mov	%rdx,%rcx
+	#     while (i) { *out++ = *m++; --i }
+	rep	movsb
+	#     out = &tmp
+	leaq	192(%rsp),%rdi
+	#     m = &tmp
+	leaq	192(%rsp),%rsi
+	# comment:fp stack unchanged by fallthrough
+#   nocopy:
+._nocopy:
+	#   out_backup = out
+	movq	%rdi,136(%rsp)
+	#   m_backup = m
+	movq	%rsi,144(%rsp)
+	#   bytes_backup = bytes
+	movq	%rdx,152(%rsp)
+	#   x1 = j0
+	movq	56(%rsp),%rdi
+	#   x0 = x1
+	mov	%rdi,%rdx
+	#   (uint64) x1 >>= 32
+	shr	$32,%rdi
+	#   		x3 = j2
+	movq	64(%rsp),%rsi
+	#   		x2 = x3
+	mov	%rsi,%rcx
+	#   		(uint64) x3 >>= 32
+	shr	$32,%rsi
+	#   x5 = j4
+	movq	72(%rsp),%r8
+	#   x4 = x5
+	mov	%r8,%r9
+	#   (uint64) x5 >>= 32
+	shr	$32,%r8
+	#   x5_stack = x5
+	movq	%r8,160(%rsp)
+	#   		x7 = j6
+	movq	80(%rsp),%r8
+	#   		x6 = x7
+	mov	%r8,%rax
+	#   		(uint64) x7 >>= 32
+	shr	$32,%r8
+	#   x9 = j8
+	movq	88(%rsp),%r10
+	#   x8 = x9
+	mov	%r10,%r11
+	#   (uint64) x9 >>= 32
+	shr	$32,%r10
+	#   		x11 = j10
+	movq	96(%rsp),%r12
+	#   		x10 = x11
+	mov	%r12,%r13
+	#   		x10_stack = x10
+	movq	%r13,168(%rsp)
+	#   		(uint64) x11 >>= 32
+	shr	$32,%r12
+	#   x13 = j12
+	movq	104(%rsp),%r13
+	#   x12 = x13
+	mov	%r13,%r14
+	#   (uint64) x13 >>= 32
+	shr	$32,%r13
+	#   		x15 = j14
+	movq	112(%rsp),%r15
+	#   		x14 = x15
+	mov	%r15,%rbx
+	#   		(uint64) x15 >>= 32
+	shr	$32,%r15
+	#   		x15_stack = x15
+	movq	%r15,176(%rsp)
+	#   i = 20
+	mov	$20,%r15
+#   mainloop:
+._mainloop:
+	#   i_backup = i
+	movq	%r15,184(%rsp)
+	# 		x5 = x5_stack
+	movq	160(%rsp),%r15
+	# a = x12 + x0
+	lea	(%r14,%rdx),%rbp
+	# (uint32) a <<<= 7
+	rol	$7,%ebp
+	# x4 ^= a
+	xor	%rbp,%r9
+	# 		b = x1 + x5
+	lea	(%rdi,%r15),%rbp
+	# 		(uint32) b <<<= 7
+	rol	$7,%ebp
+	# 		x9 ^= b
+	xor	%rbp,%r10
+	# a = x0 + x4
+	lea	(%rdx,%r9),%rbp
+	# (uint32) a <<<= 9
+	rol	$9,%ebp
+	# x8 ^= a
+	xor	%rbp,%r11
+	# 		b = x5 + x9
+	lea	(%r15,%r10),%rbp
+	# 		(uint32) b <<<= 9
+	rol	$9,%ebp
+	# 		x13 ^= b
+	xor	%rbp,%r13
+	# a = x4 + x8
+	lea	(%r9,%r11),%rbp
+	# (uint32) a <<<= 13
+	rol	$13,%ebp
+	# x12 ^= a
+	xor	%rbp,%r14
+	# 		b = x9 + x13
+	lea	(%r10,%r13),%rbp
+	# 		(uint32) b <<<= 13
+	rol	$13,%ebp
+	# 		x1 ^= b
+	xor	%rbp,%rdi
+	# a = x8 + x12
+	lea	(%r11,%r14),%rbp
+	# (uint32) a <<<= 18
+	rol	$18,%ebp
+	# x0 ^= a
+	xor	%rbp,%rdx
+	# 		b = x13 + x1
+	lea	(%r13,%rdi),%rbp
+	# 		(uint32) b <<<= 18
+	rol	$18,%ebp
+	# 		x5 ^= b
+	xor	%rbp,%r15
+	# 				x10 = x10_stack
+	movq	168(%rsp),%rbp
+	# 		x5_stack = x5
+	movq	%r15,160(%rsp)
+	# 				c = x6 + x10
+	lea	(%rax,%rbp),%r15
+	# 				(uint32) c <<<= 7
+	rol	$7,%r15d
+	# 				x14 ^= c
+	xor	%r15,%rbx
+	# 				c = x10 + x14
+	lea	(%rbp,%rbx),%r15
+	# 				(uint32) c <<<= 9
+	rol	$9,%r15d
+	# 				x2 ^= c
+	xor	%r15,%rcx
+	# 				c = x14 + x2
+	lea	(%rbx,%rcx),%r15
+	# 				(uint32) c <<<= 13
+	rol	$13,%r15d
+	# 				x6 ^= c
+	xor	%r15,%rax
+	# 				c = x2 + x6
+	lea	(%rcx,%rax),%r15
+	# 				(uint32) c <<<= 18
+	rol	$18,%r15d
+	# 				x10 ^= c
+	xor	%r15,%rbp
+	# 						x15 = x15_stack
+	movq	176(%rsp),%r15
+	# 				x10_stack = x10
+	movq	%rbp,168(%rsp)
+	# 						d = x11 + x15
+	lea	(%r12,%r15),%rbp
+	# 						(uint32) d <<<= 7
+	rol	$7,%ebp
+	# 						x3 ^= d
+	xor	%rbp,%rsi
+	# 						d = x15 + x3
+	lea	(%r15,%rsi),%rbp
+	# 						(uint32) d <<<= 9
+	rol	$9,%ebp
+	# 						x7 ^= d
+	xor	%rbp,%r8
+	# 						d = x3 + x7
+	lea	(%rsi,%r8),%rbp
+	# 						(uint32) d <<<= 13
+	rol	$13,%ebp
+	# 						x11 ^= d
+	xor	%rbp,%r12
+	# 						d = x7 + x11
+	lea	(%r8,%r12),%rbp
+	# 						(uint32) d <<<= 18
+	rol	$18,%ebp
+	# 						x15 ^= d
+	xor	%rbp,%r15
+	# 						x15_stack = x15
+	movq	%r15,176(%rsp)
+	# 		x5 = x5_stack
+	movq	160(%rsp),%r15
+	# a = x3 + x0
+	lea	(%rsi,%rdx),%rbp
+	# (uint32) a <<<= 7
+	rol	$7,%ebp
+	# x1 ^= a
+	xor	%rbp,%rdi
+	# 		b = x4 + x5
+	lea	(%r9,%r15),%rbp
+	# 		(uint32) b <<<= 7
+	rol	$7,%ebp
+	# 		x6 ^= b
+	xor	%rbp,%rax
+	# a = x0 + x1
+	lea	(%rdx,%rdi),%rbp
+	# (uint32) a <<<= 9
+	rol	$9,%ebp
+	# x2 ^= a
+	xor	%rbp,%rcx
+	# 		b = x5 + x6
+	lea	(%r15,%rax),%rbp
+	# 		(uint32) b <<<= 9
+	rol	$9,%ebp
+	# 		x7 ^= b
+	xor	%rbp,%r8
+	# a = x1 + x2
+	lea	(%rdi,%rcx),%rbp
+	# (uint32) a <<<= 13
+	rol	$13,%ebp
+	# x3 ^= a
+	xor	%rbp,%rsi
+	# 		b = x6 + x7
+	lea	(%rax,%r8),%rbp
+	# 		(uint32) b <<<= 13
+	rol	$13,%ebp
+	# 		x4 ^= b
+	xor	%rbp,%r9
+	# a = x2 + x3
+	lea	(%rcx,%rsi),%rbp
+	# (uint32) a <<<= 18
+	rol	$18,%ebp
+	# x0 ^= a
+	xor	%rbp,%rdx
+	# 		b = x7 + x4
+	lea	(%r8,%r9),%rbp
+	# 		(uint32) b <<<= 18
+	rol	$18,%ebp
+	# 		x5 ^= b
+	xor	%rbp,%r15
+	# 				x10 = x10_stack
+	movq	168(%rsp),%rbp
+	# 		x5_stack = x5
+	movq	%r15,160(%rsp)
+	# 				c = x9 + x10
+	lea	(%r10,%rbp),%r15
+	# 				(uint32) c <<<= 7
+	rol	$7,%r15d
+	# 				x11 ^= c
+	xor	%r15,%r12
+	# 				c = x10 + x11
+	lea	(%rbp,%r12),%r15
+	# 				(uint32) c <<<= 9
+	rol	$9,%r15d
+	# 				x8 ^= c
+	xor	%r15,%r11
+	# 				c = x11 + x8
+	lea	(%r12,%r11),%r15
+	# 				(uint32) c <<<= 13
+	rol	$13,%r15d
+	# 				x9 ^= c
+	xor	%r15,%r10
+	# 				c = x8 + x9
+	lea	(%r11,%r10),%r15
+	# 				(uint32) c <<<= 18
+	rol	$18,%r15d
+	# 				x10 ^= c
+	xor	%r15,%rbp
+	# 						x15 = x15_stack
+	movq	176(%rsp),%r15
+	# 				x10_stack = x10
+	movq	%rbp,168(%rsp)
+	# 						d = x14 + x15
+	lea	(%rbx,%r15),%rbp
+	# 						(uint32) d <<<= 7
+	rol	$7,%ebp
+	# 						x12 ^= d
+	xor	%rbp,%r14
+	# 						d = x15 + x12
+	lea	(%r15,%r14),%rbp
+	# 						(uint32) d <<<= 9
+	rol	$9,%ebp
+	# 						x13 ^= d
+	xor	%rbp,%r13
+	# 						d = x12 + x13
+	lea	(%r14,%r13),%rbp
+	# 						(uint32) d <<<= 13
+	rol	$13,%ebp
+	# 						x14 ^= d
+	xor	%rbp,%rbx
+	# 						d = x13 + x14
+	lea	(%r13,%rbx),%rbp
+	# 						(uint32) d <<<= 18
+	rol	$18,%ebp
+	# 						x15 ^= d
+	xor	%rbp,%r15
+	# 						x15_stack = x15
+	movq	%r15,176(%rsp)
+	# 		x5 = x5_stack
+	movq	160(%rsp),%r15
+	# a = x12 + x0
+	lea	(%r14,%rdx),%rbp
+	# (uint32) a <<<= 7
+	rol	$7,%ebp
+	# x4 ^= a
+	xor	%rbp,%r9
+	# 		b = x1 + x5
+	lea	(%rdi,%r15),%rbp
+	# 		(uint32) b <<<= 7
+	rol	$7,%ebp
+	# 		x9 ^= b
+	xor	%rbp,%r10
+	# a = x0 + x4
+	lea	(%rdx,%r9),%rbp
+	# (uint32) a <<<= 9
+	rol	$9,%ebp
+	# x8 ^= a
+	xor	%rbp,%r11
+	# 		b = x5 + x9
+	lea	(%r15,%r10),%rbp
+	# 		(uint32) b <<<= 9
+	rol	$9,%ebp
+	# 		x13 ^= b
+	xor	%rbp,%r13
+	# a = x4 + x8
+	lea	(%r9,%r11),%rbp
+	# (uint32) a <<<= 13
+	rol	$13,%ebp
+	# x12 ^= a
+	xor	%rbp,%r14
+	# 		b = x9 + x13
+	lea	(%r10,%r13),%rbp
+	# 		(uint32) b <<<= 13
+	rol	$13,%ebp
+	# 		x1 ^= b
+	xor	%rbp,%rdi
+	# a = x8 + x12
+	lea	(%r11,%r14),%rbp
+	# (uint32) a <<<= 18
+	rol	$18,%ebp
+	# x0 ^= a
+	xor	%rbp,%rdx
+	# 		b = x13 + x1
+	lea	(%r13,%rdi),%rbp
+	# 		(uint32) b <<<= 18
+	rol	$18,%ebp
+	# 		x5 ^= b
+	xor	%rbp,%r15
+	# 				x10 = x10_stack
+	movq	168(%rsp),%rbp
+	# 		x5_stack = x5
+	movq	%r15,160(%rsp)
+	# 				c = x6 + x10
+	lea	(%rax,%rbp),%r15
+	# 				(uint32) c <<<= 7
+	rol	$7,%r15d
+	# 				x14 ^= c
+	xor	%r15,%rbx
+	# 				c = x10 + x14
+	lea	(%rbp,%rbx),%r15
+	# 				(uint32) c <<<= 9
+	rol	$9,%r15d
+	# 				x2 ^= c
+	xor	%r15,%rcx
+	# 				c = x14 + x2
+	lea	(%rbx,%rcx),%r15
+	# 				(uint32) c <<<= 13
+	rol	$13,%r15d
+	# 				x6 ^= c
+	xor	%r15,%rax
+	# 				c = x2 + x6
+	lea	(%rcx,%rax),%r15
+	# 				(uint32) c <<<= 18
+	rol	$18,%r15d
+	# 				x10 ^= c
+	xor	%r15,%rbp
+	# 						x15 = x15_stack
+	movq	176(%rsp),%r15
+	# 				x10_stack = x10
+	movq	%rbp,168(%rsp)
+	# 						d = x11 + x15
+	lea	(%r12,%r15),%rbp
+	# 						(uint32) d <<<= 7
+	rol	$7,%ebp
+	# 						x3 ^= d
+	xor	%rbp,%rsi
+	# 						d = x15 + x3
+	lea	(%r15,%rsi),%rbp
+	# 						(uint32) d <<<= 9
+	rol	$9,%ebp
+	# 						x7 ^= d
+	xor	%rbp,%r8
+	# 						d = x3 + x7
+	lea	(%rsi,%r8),%rbp
+	# 						(uint32) d <<<= 13
+	rol	$13,%ebp
+	# 						x11 ^= d
+	xor	%rbp,%r12
+	# 						d = x7 + x11
+	lea	(%r8,%r12),%rbp
+	# 						(uint32) d <<<= 18
+	rol	$18,%ebp
+	# 						x15 ^= d
+	xor	%rbp,%r15
+	# 						x15_stack = x15
+	movq	%r15,176(%rsp)
+	# 		x5 = x5_stack
+	movq	160(%rsp),%r15
+	# a = x3 + x0
+	lea	(%rsi,%rdx),%rbp
+	# (uint32) a <<<= 7
+	rol	$7,%ebp
+	# x1 ^= a
+	xor	%rbp,%rdi
+	# 		b = x4 + x5
+	lea	(%r9,%r15),%rbp
+	# 		(uint32) b <<<= 7
+	rol	$7,%ebp
+	# 		x6 ^= b
+	xor	%rbp,%rax
+	# a = x0 + x1
+	lea	(%rdx,%rdi),%rbp
+	# (uint32) a <<<= 9
+	rol	$9,%ebp
+	# x2 ^= a
+	xor	%rbp,%rcx
+	# 		b = x5 + x6
+	lea	(%r15,%rax),%rbp
+	# 		(uint32) b <<<= 9
+	rol	$9,%ebp
+	# 		x7 ^= b
+	xor	%rbp,%r8
+	# a = x1 + x2
+	lea	(%rdi,%rcx),%rbp
+	# (uint32) a <<<= 13
+	rol	$13,%ebp
+	# x3 ^= a
+	xor	%rbp,%rsi
+	# 		b = x6 + x7
+	lea	(%rax,%r8),%rbp
+	# 		(uint32) b <<<= 13
+	rol	$13,%ebp
+	# 		x4 ^= b
+	xor	%rbp,%r9
+	# a = x2 + x3
+	lea	(%rcx,%rsi),%rbp
+	# (uint32) a <<<= 18
+	rol	$18,%ebp
+	# x0 ^= a
+	xor	%rbp,%rdx
+	# 		b = x7 + x4
+	lea	(%r8,%r9),%rbp
+	# 		(uint32) b <<<= 18
+	rol	$18,%ebp
+	# 		x5 ^= b
+	xor	%rbp,%r15
+	# 				x10 = x10_stack
+	movq	168(%rsp),%rbp
+	# 		x5_stack = x5
+	movq	%r15,160(%rsp)
+	# 				c = x9 + x10
+	lea	(%r10,%rbp),%r15
+	# 				(uint32) c <<<= 7
+	rol	$7,%r15d
+	# 				x11 ^= c
+	xor	%r15,%r12
+	# 				c = x10 + x11
+	lea	(%rbp,%r12),%r15
+	# 				(uint32) c <<<= 9
+	rol	$9,%r15d
+	# 				x8 ^= c
+	xor	%r15,%r11
+	# 				c = x11 + x8
+	lea	(%r12,%r11),%r15
+	# 				(uint32) c <<<= 13
+	rol	$13,%r15d
+	# 				x9 ^= c
+	xor	%r15,%r10
+	# 				c = x8 + x9
+	lea	(%r11,%r10),%r15
+	# 				(uint32) c <<<= 18
+	rol	$18,%r15d
+	# 				x10 ^= c
+	xor	%r15,%rbp
+	# 						x15 = x15_stack
+	movq	176(%rsp),%r15
+	# 				x10_stack = x10
+	movq	%rbp,168(%rsp)
+	# 						d = x14 + x15
+	lea	(%rbx,%r15),%rbp
+	# 						(uint32) d <<<= 7
+	rol	$7,%ebp
+	# 						x12 ^= d
+	xor	%rbp,%r14
+	# 						d = x15 + x12
+	lea	(%r15,%r14),%rbp
+	# 						(uint32) d <<<= 9
+	rol	$9,%ebp
+	# 						x13 ^= d
+	xor	%rbp,%r13
+	# 						d = x12 + x13
+	lea	(%r14,%r13),%rbp
+	# 						(uint32) d <<<= 13
+	rol	$13,%ebp
+	# 						x14 ^= d
+	xor	%rbp,%rbx
+	# 						d = x13 + x14
+	lea	(%r13,%rbx),%rbp
+	# 						(uint32) d <<<= 18
+	rol	$18,%ebp
+	# 						x15 ^= d
+	xor	%rbp,%r15
+	# 						x15_stack = x15
+	movq	%r15,176(%rsp)
+	#   i = i_backup
+	movq	184(%rsp),%r15
+	#                  unsigned>? i -= 4
+	sub	$4,%r15
+	# comment:fp stack unchanged by jump
+	# goto mainloop if unsigned>
+	ja	._mainloop
+	#   (uint32) x2 += j2
+	addl	64(%rsp),%ecx
+	#   x3 <<= 32
+	shl	$32,%rsi
+	#   x3 += j2
+	addq	64(%rsp),%rsi
+	#   (uint64) x3 >>= 32
+	shr	$32,%rsi
+	#   x3 <<= 32
+	shl	$32,%rsi
+	#   x2 += x3
+	add	%rsi,%rcx
+	#   (uint32) x6 += j6
+	addl	80(%rsp),%eax
+	#   x7 <<= 32
+	shl	$32,%r8
+	#   x7 += j6
+	addq	80(%rsp),%r8
+	#   (uint64) x7 >>= 32
+	shr	$32,%r8
+	#   x7 <<= 32
+	shl	$32,%r8
+	#   x6 += x7
+	add	%r8,%rax
+	#   (uint32) x8 += j8
+	addl	88(%rsp),%r11d
+	#   x9 <<= 32
+	shl	$32,%r10
+	#   x9 += j8
+	addq	88(%rsp),%r10
+	#   (uint64) x9 >>= 32
+	shr	$32,%r10
+	#   x9 <<= 32
+	shl	$32,%r10
+	#   x8 += x9
+	add	%r10,%r11
+	#   (uint32) x12 += j12
+	addl	104(%rsp),%r14d
+	#   x13 <<= 32
+	shl	$32,%r13
+	#   x13 += j12
+	addq	104(%rsp),%r13
+	#   (uint64) x13 >>= 32
+	shr	$32,%r13
+	#   x13 <<= 32
+	shl	$32,%r13
+	#   x12 += x13
+	add	%r13,%r14
+	#   (uint32) x0 += j0
+	addl	56(%rsp),%edx
+	#   x1 <<= 32
+	shl	$32,%rdi
+	#   x1 += j0
+	addq	56(%rsp),%rdi
+	#   (uint64) x1 >>= 32
+	shr	$32,%rdi
+	#   x1 <<= 32
+	shl	$32,%rdi
+	#   x0 += x1
+	add	%rdi,%rdx
+	#   x5 = x5_stack
+	movq	160(%rsp),%rdi
+	#   (uint32) x4 += j4
+	addl	72(%rsp),%r9d
+	#   x5 <<= 32
+	shl	$32,%rdi
+	#   x5 += j4
+	addq	72(%rsp),%rdi
+	#   (uint64) x5 >>= 32
+	shr	$32,%rdi
+	#   x5 <<= 32
+	shl	$32,%rdi
+	#   x4 += x5
+	add	%rdi,%r9
+	#   x10 = x10_stack
+	movq	168(%rsp),%r8
+	#   (uint32) x10 += j10
+	addl	96(%rsp),%r8d
+	#   x11 <<= 32
+	shl	$32,%r12
+	#   x11 += j10
+	addq	96(%rsp),%r12
+	#   (uint64) x11 >>= 32
+	shr	$32,%r12
+	#   x11 <<= 32
+	shl	$32,%r12
+	#   x10 += x11
+	add	%r12,%r8
+	#   x15 = x15_stack
+	movq	176(%rsp),%rdi
+	#   (uint32) x14 += j14
+	addl	112(%rsp),%ebx
+	#   x15 <<= 32
+	shl	$32,%rdi
+	#   x15 += j14
+	addq	112(%rsp),%rdi
+	#   (uint64) x15 >>= 32
+	shr	$32,%rdi
+	#   x15 <<= 32
+	shl	$32,%rdi
+	#   x14 += x15
+	add	%rdi,%rbx
+	#   out = out_backup
+	movq	136(%rsp),%rdi
+	#   m = m_backup
+	movq	144(%rsp),%rsi
+	#   x0 ^= *(uint64 *) (m + 0)
+	xorq	0(%rsi),%rdx
+	#   *(uint64 *) (out + 0) = x0
+	movq	%rdx,0(%rdi)
+	#   x2 ^= *(uint64 *) (m + 8)
+	xorq	8(%rsi),%rcx
+	#   *(uint64 *) (out + 8) = x2
+	movq	%rcx,8(%rdi)
+	#   x4 ^= *(uint64 *) (m + 16)
+	xorq	16(%rsi),%r9
+	#   *(uint64 *) (out + 16) = x4
+	movq	%r9,16(%rdi)
+	#   x6 ^= *(uint64 *) (m + 24)
+	xorq	24(%rsi),%rax
+	#   *(uint64 *) (out + 24) = x6
+	movq	%rax,24(%rdi)
+	#   x8 ^= *(uint64 *) (m + 32)
+	xorq	32(%rsi),%r11
+	#   *(uint64 *) (out + 32) = x8
+	movq	%r11,32(%rdi)
+	#   x10 ^= *(uint64 *) (m + 40)
+	xorq	40(%rsi),%r8
+	#   *(uint64 *) (out + 40) = x10
+	movq	%r8,40(%rdi)
+	#   x12 ^= *(uint64 *) (m + 48)
+	xorq	48(%rsi),%r14
+	#   *(uint64 *) (out + 48) = x12
+	movq	%r14,48(%rdi)
+	#   x14 ^= *(uint64 *) (m + 56)
+	xorq	56(%rsi),%rbx
+	#   *(uint64 *) (out + 56) = x14
+	movq	%rbx,56(%rdi)
+	#   bytes = bytes_backup
+	movq	152(%rsp),%rdx
+	#   in8 = j8
+	movq	88(%rsp),%rcx
+	#   in8 += 1
+	add	$1,%rcx
+	#   j8 = in8
+	movq	%rcx,88(%rsp)
+	#                          unsigned>? unsigned<? bytes - 64
+	cmp	$64,%rdx
+	# comment:fp stack unchanged by jump
+	#   goto bytesatleast65 if unsigned>
+	ja	._bytesatleast65
+	# comment:fp stack unchanged by jump
+	#     goto bytesatleast64 if !unsigned<
+	jae	._bytesatleast64
+	#       m = out
+	mov	%rdi,%rsi
+	#       out = ctarget
+	movq	128(%rsp),%rdi
+	#       i = bytes
+	mov	%rdx,%rcx
+	#       while (i) { *out++ = *m++; --i }
+	rep	movsb
+	# comment:fp stack unchanged by fallthrough
+#     bytesatleast64:
+._bytesatleast64:
+	#     x = x_backup
+	movq	120(%rsp),%rdi
+	#     in8 = j8
+	movq	88(%rsp),%rsi
+	#     *(uint64 *) (x + 32) = in8
+	movq	%rsi,32(%rdi)
+	#     r11 = r11_stack
+	movq	0(%rsp),%r11
+	#     r12 = r12_stack
+	movq	8(%rsp),%r12
+	#     r13 = r13_stack
+	movq	16(%rsp),%r13
+	#     r14 = r14_stack
+	movq	24(%rsp),%r14
+	#     r15 = r15_stack
+	movq	32(%rsp),%r15
+	#     rbx = rbx_stack
+	movq	40(%rsp),%rbx
+	#     rbp = rbp_stack
+	movq	48(%rsp),%rbp
+	# comment:fp stack unchanged by fallthrough
+#     done:
+._done:
+	#     leave
+	add	%r11,%rsp
+	mov	%rdi,%rax
+	mov	%rsi,%rdx
+	ret
+#   bytesatleast65:
+._bytesatleast65:
+	#   bytes -= 64
+	sub	$64,%rdx
+	#   out += 64
+	add	$64,%rdi
+	#   m += 64
+	add	$64,%rsi
+	# comment:fp stack unchanged by jump
+	# goto bytesatleast1
+	jmp	._bytesatleast1
+# enter ECRYPT_keysetup
+.text
+.p2align 5
+.globl ECRYPT_keysetup
+ECRYPT_keysetup:
+	mov	%rsp,%r11
+	and	$31,%r11
+	add	$256,%r11
+	sub	%r11,%rsp
+	#   k = arg2
+	mov	%rsi,%rsi
+	#   kbits = arg3
+	mov	%rdx,%rdx
+	#   x = arg1
+	mov	%rdi,%rdi
+	#   in0 = *(uint64 *) (k + 0)
+	movq	0(%rsi),%r8
+	#   in2 = *(uint64 *) (k + 8)
+	movq	8(%rsi),%r9
+	#   *(uint64 *) (x + 4) = in0
+	movq	%r8,4(%rdi)
+	#   *(uint64 *) (x + 12) = in2
+	movq	%r9,12(%rdi)
+	#                    unsigned<? kbits - 256
+	cmp	$256,%rdx
+	# comment:fp stack unchanged by jump
+	#   goto kbits128 if unsigned<
+	jb	._kbits128
+#   kbits256:
+._kbits256:
+	#     in10 = *(uint64 *) (k + 16)
+	movq	16(%rsi),%rdx
+	#     in12 = *(uint64 *) (k + 24)
+	movq	24(%rsi),%rsi
+	#     *(uint64 *) (x + 44) = in10
+	movq	%rdx,44(%rdi)
+	#     *(uint64 *) (x + 52) = in12
+	movq	%rsi,52(%rdi)
+	#     in0 = 1634760805
+	mov	$1634760805,%rsi
+	#     in4 = 857760878
+	mov	$857760878,%rdx
+	#     in10 = 2036477234
+	mov	$2036477234,%rcx
+	#     in14 = 1797285236
+	mov	$1797285236,%r8
+	#     *(uint32 *) (x + 0) = in0
+	movl	%esi,0(%rdi)
+	#     *(uint32 *) (x + 20) = in4
+	movl	%edx,20(%rdi)
+	#     *(uint32 *) (x + 40) = in10
+	movl	%ecx,40(%rdi)
+	#     *(uint32 *) (x + 60) = in14
+	movl	%r8d,60(%rdi)
+	# comment:fp stack unchanged by jump
+	#   goto keysetupdone
+	jmp	._keysetupdone
+#   kbits128:
+._kbits128:
+	#     in10 = *(uint64 *) (k + 0)
+	movq	0(%rsi),%rdx
+	#     in12 = *(uint64 *) (k + 8)
+	movq	8(%rsi),%rsi
+	#     *(uint64 *) (x + 44) = in10
+	movq	%rdx,44(%rdi)
+	#     *(uint64 *) (x + 52) = in12
+	movq	%rsi,52(%rdi)
+	#     in0 = 1634760805
+	mov	$1634760805,%rsi
+	#     in4 = 824206446
+	mov	$824206446,%rdx
+	#     in10 = 2036477238
+	mov	$2036477238,%rcx
+	#     in14 = 1797285236
+	mov	$1797285236,%r8
+	#     *(uint32 *) (x + 0) = in0
+	movl	%esi,0(%rdi)
+	#     *(uint32 *) (x + 20) = in4
+	movl	%edx,20(%rdi)
+	#     *(uint32 *) (x + 40) = in10
+	movl	%ecx,40(%rdi)
+	#     *(uint32 *) (x + 60) = in14
+	movl	%r8d,60(%rdi)
+#   keysetupdone:
+._keysetupdone:
+	# leave
+	add	%r11,%rsp
+	mov	%rdi,%rax
+	mov	%rsi,%rdx
+	ret
+# enter ECRYPT_ivsetup
+.text
+.p2align 5
+.globl ECRYPT_ivsetup
+ECRYPT_ivsetup:
+	mov	%rsp,%r11
+	and	$31,%r11
+	add	$256,%r11
+	sub	%r11,%rsp
+	#   iv = arg2
+	mov	%rsi,%rsi
+	#   x = arg1
+	mov	%rdi,%rdi
+	#   in6 = *(uint64 *) (iv + 0)
+	movq	0(%rsi),%rsi
+	#   in8 = 0
+	mov	$0,%r8
+	#   *(uint64 *) (x + 24) = in6
+	movq	%rsi,24(%rdi)
+	#   *(uint64 *) (x + 32) = in8
+	movq	%r8,32(%rdi)
+	# leave
+	add	%r11,%rsp
+	mov	%rdi,%rax
+	mov	%rsi,%rdx
+	ret
diff --git a/arch/x86/crypto/salsa20_glue.c b/arch/x86/crypto/salsa20_glue.c
index 3be443995ed6..bccb76d80987 100644
--- a/arch/x86/crypto/salsa20_glue.c
+++ b/arch/x86/crypto/salsa20_glue.c
@@ -8,6 +8,8 @@
  * and to remove extraneous comments and functions that are not needed.
  * - i586 version, renamed as salsa20-i586-asm_32.S
  *   available from <http://cr.yp.to/snuffle/salsa20/x86-pm/salsa20.s>
+ * - x86-64 version, renamed as salsa20-x86_64-asm_64.S
+ *   available from <http://cr.yp.to/snuffle/salsa20/amd64-3/salsa20.s>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 221356b4150c..b0481f7b002a 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -504,6 +504,21 @@ config CRYPTO_SALSA20_586
 	  The Salsa20 stream cipher algorithm is designed by Daniel J.
 	  Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
 
+config CRYPTO_SALSA20_X86_64
+	tristate "Salsa20 stream cipher algorithm (x86_64) (EXPERIMENTAL)"
+	depends on (X86 || UML_X86) && 64BIT
+	depends on EXPERIMENTAL
+	select CRYPTO_BLKCIPHER
+	select CRYPTO_SALSA20
+	help
+	  Salsa20 stream cipher algorithm.
+
+	  Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
+	  Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
+
+	  The Salsa20 stream cipher algorithm is designed by Daniel J.
+	  Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
+
 config CRYPTO_DEFLATE
 	tristate "Deflate compression algorithm"
 	select CRYPTO_ALGAPI
-- 
cgit v1.2.3-59-g8ed1b


From 15e7b4452b72ae890f2fcb027b4c4fa63a1c9a7a Mon Sep 17 00:00:00 2001
From: Sebastian Siewior <sebastian@breakpoint.cc>
Date: Mon, 14 Jan 2008 17:07:57 +1100
Subject: [CRYPTO] twofish: Merge common glue code

There is almost no difference between 32 & 64 bit glue code.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/x86/crypto/Makefile       |  4 +-
 arch/x86/crypto/twofish_32.c   | 97 ------------------------------------------
 arch/x86/crypto/twofish_64.c   | 97 ------------------------------------------
 arch/x86/crypto/twofish_glue.c | 97 ++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 99 insertions(+), 196 deletions(-)
 delete mode 100644 arch/x86/crypto/twofish_32.c
 delete mode 100644 arch/x86/crypto/twofish_64.c
 create mode 100644 arch/x86/crypto/twofish_glue.c

(limited to 'arch')

diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 09200e12f14d..3874c2de5403 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -11,9 +11,9 @@ obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
 obj-$(CONFIG_CRYPTO_SALSA20_X86_64) += salsa20-x86_64.o
 
 aes-i586-y := aes-i586-asm_32.o aes_glue.o
-twofish-i586-y := twofish-i586-asm_32.o twofish_32.o
+twofish-i586-y := twofish-i586-asm_32.o twofish_glue.o
 salsa20-i586-y := salsa20-i586-asm_32.o salsa20_glue.o
 
 aes-x86_64-y := aes-x86_64-asm_64.o aes_glue.o
-twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_64.o
+twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_glue.o
 salsa20-x86_64-y := salsa20-x86_64-asm_64.o salsa20_glue.o
diff --git a/arch/x86/crypto/twofish_32.c b/arch/x86/crypto/twofish_32.c
deleted file mode 100644
index e3004dfe9c7a..000000000000
--- a/arch/x86/crypto/twofish_32.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- *  Glue Code for optimized 586 assembler version of TWOFISH
- *
- * Originally Twofish for GPG
- * By Matthew Skala <mskala@ansuz.sooke.bc.ca>, July 26, 1998
- * 256-bit key length added March 20, 1999
- * Some modifications to reduce the text size by Werner Koch, April, 1998
- * Ported to the kerneli patch by Marc Mutz <Marc@Mutz.com>
- * Ported to CryptoAPI by Colin Slater <hoho@tacomeat.net>
- *
- * The original author has disclaimed all copyright interest in this
- * code and thus put it in the public domain. The subsequent authors
- * have put this under the GNU General Public License.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
- * USA
- *
- * This code is a "clean room" implementation, written from the paper
- * _Twofish: A 128-Bit Block Cipher_ by Bruce Schneier, John Kelsey,
- * Doug Whiting, David Wagner, Chris Hall, and Niels Ferguson, available
- * through http://www.counterpane.com/twofish.html
- *
- * For background information on multiplication in finite fields, used for
- * the matrix operations in the key schedule, see the book _Contemporary
- * Abstract Algebra_ by Joseph A. Gallian, especially chapter 22 in the
- * Third Edition.
- */
-
-#include <crypto/twofish.h>
-#include <linux/crypto.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-
-
-asmlinkage void twofish_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
-asmlinkage void twofish_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
-
-static void twofish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
-	twofish_enc_blk(tfm, dst, src);
-}
-
-static void twofish_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
-	twofish_dec_blk(tfm, dst, src);
-}
-
-static struct crypto_alg alg = {
-	.cra_name		=	"twofish",
-	.cra_driver_name	=	"twofish-i586",
-	.cra_priority		=	200,
-	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
-	.cra_blocksize		=	TF_BLOCK_SIZE,
-	.cra_ctxsize		=	sizeof(struct twofish_ctx),
-	.cra_alignmask		=	3,
-	.cra_module		=	THIS_MODULE,
-	.cra_list		=	LIST_HEAD_INIT(alg.cra_list),
-	.cra_u			=	{
-		.cipher = {
-			.cia_min_keysize	=	TF_MIN_KEY_SIZE,
-			.cia_max_keysize	=	TF_MAX_KEY_SIZE,
-			.cia_setkey		=	twofish_setkey,
-			.cia_encrypt		=	twofish_encrypt,
-			.cia_decrypt		=	twofish_decrypt
-		}
-	}
-};
-
-static int __init init(void)
-{
-	return crypto_register_alg(&alg);
-}
-
-static void __exit fini(void)
-{
-	crypto_unregister_alg(&alg);
-}
-
-module_init(init);
-module_exit(fini);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION ("Twofish Cipher Algorithm, i586 asm optimized");
-MODULE_ALIAS("twofish");
diff --git a/arch/x86/crypto/twofish_64.c b/arch/x86/crypto/twofish_64.c
deleted file mode 100644
index 182d91d5cfb9..000000000000
--- a/arch/x86/crypto/twofish_64.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Glue Code for optimized x86_64 assembler version of TWOFISH
- *
- * Originally Twofish for GPG
- * By Matthew Skala <mskala@ansuz.sooke.bc.ca>, July 26, 1998
- * 256-bit key length added March 20, 1999
- * Some modifications to reduce the text size by Werner Koch, April, 1998
- * Ported to the kerneli patch by Marc Mutz <Marc@Mutz.com>
- * Ported to CryptoAPI by Colin Slater <hoho@tacomeat.net>
- *
- * The original author has disclaimed all copyright interest in this
- * code and thus put it in the public domain. The subsequent authors
- * have put this under the GNU General Public License.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
- * USA
- *
- * This code is a "clean room" implementation, written from the paper
- * _Twofish: A 128-Bit Block Cipher_ by Bruce Schneier, John Kelsey,
- * Doug Whiting, David Wagner, Chris Hall, and Niels Ferguson, available
- * through http://www.counterpane.com/twofish.html
- *
- * For background information on multiplication in finite fields, used for
- * the matrix operations in the key schedule, see the book _Contemporary
- * Abstract Algebra_ by Joseph A. Gallian, especially chapter 22 in the
- * Third Edition.
- */
-
-#include <crypto/twofish.h>
-#include <linux/crypto.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/types.h>
-
-asmlinkage void twofish_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
-asmlinkage void twofish_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
-
-static void twofish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
-	twofish_enc_blk(tfm, dst, src);
-}
-
-static void twofish_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
-	twofish_dec_blk(tfm, dst, src);
-}
-
-static struct crypto_alg alg = {
-	.cra_name		=	"twofish",
-	.cra_driver_name	=	"twofish-x86_64",
-	.cra_priority		=	200,
-	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
-	.cra_blocksize		=	TF_BLOCK_SIZE,
-	.cra_ctxsize		=	sizeof(struct twofish_ctx),
-	.cra_alignmask		=	3,
-	.cra_module		=	THIS_MODULE,
-	.cra_list		=	LIST_HEAD_INIT(alg.cra_list),
-	.cra_u			=	{
-		.cipher = {
-			.cia_min_keysize	=	TF_MIN_KEY_SIZE,
-			.cia_max_keysize	=	TF_MAX_KEY_SIZE,
-			.cia_setkey		=	twofish_setkey,
-			.cia_encrypt		=	twofish_encrypt,
-			.cia_decrypt		=	twofish_decrypt
-		}
-	}
-};
-
-static int __init init(void)
-{
-	return crypto_register_alg(&alg);
-}
-
-static void __exit fini(void)
-{
-	crypto_unregister_alg(&alg);
-}
-
-module_init(init);
-module_exit(fini);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION ("Twofish Cipher Algorithm, x86_64 asm optimized");
-MODULE_ALIAS("twofish");
diff --git a/arch/x86/crypto/twofish_glue.c b/arch/x86/crypto/twofish_glue.c
new file mode 100644
index 000000000000..cefaf8b9aa18
--- /dev/null
+++ b/arch/x86/crypto/twofish_glue.c
@@ -0,0 +1,97 @@
+/*
+ * Glue Code for assembler optimized version of TWOFISH
+ *
+ * Originally Twofish for GPG
+ * By Matthew Skala <mskala@ansuz.sooke.bc.ca>, July 26, 1998
+ * 256-bit key length added March 20, 1999
+ * Some modifications to reduce the text size by Werner Koch, April, 1998
+ * Ported to the kerneli patch by Marc Mutz <Marc@Mutz.com>
+ * Ported to CryptoAPI by Colin Slater <hoho@tacomeat.net>
+ *
+ * The original author has disclaimed all copyright interest in this
+ * code and thus put it in the public domain. The subsequent authors
+ * have put this under the GNU General Public License.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ * USA
+ *
+ * This code is a "clean room" implementation, written from the paper
+ * _Twofish: A 128-Bit Block Cipher_ by Bruce Schneier, John Kelsey,
+ * Doug Whiting, David Wagner, Chris Hall, and Niels Ferguson, available
+ * through http://www.counterpane.com/twofish.html
+ *
+ * For background information on multiplication in finite fields, used for
+ * the matrix operations in the key schedule, see the book _Contemporary
+ * Abstract Algebra_ by Joseph A. Gallian, especially chapter 22 in the
+ * Third Edition.
+ */
+
+#include <crypto/twofish.h>
+#include <linux/crypto.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+asmlinkage void twofish_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
+asmlinkage void twofish_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
+
+static void twofish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+	twofish_enc_blk(tfm, dst, src);
+}
+
+static void twofish_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+	twofish_dec_blk(tfm, dst, src);
+}
+
+static struct crypto_alg alg = {
+	.cra_name		=	"twofish",
+	.cra_driver_name	=	"twofish-asm",
+	.cra_priority		=	200,
+	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
+	.cra_blocksize		=	TF_BLOCK_SIZE,
+	.cra_ctxsize		=	sizeof(struct twofish_ctx),
+	.cra_alignmask		=	3,
+	.cra_module		=	THIS_MODULE,
+	.cra_list		=	LIST_HEAD_INIT(alg.cra_list),
+	.cra_u			=	{
+		.cipher = {
+			.cia_min_keysize	=	TF_MIN_KEY_SIZE,
+			.cia_max_keysize	=	TF_MAX_KEY_SIZE,
+			.cia_setkey		=	twofish_setkey,
+			.cia_encrypt		=	twofish_encrypt,
+			.cia_decrypt		=	twofish_decrypt
+		}
+	}
+};
+
+static int __init init(void)
+{
+	return crypto_register_alg(&alg);
+}
+
+static void __exit fini(void)
+{
+	crypto_unregister_alg(&alg);
+}
+
+module_init(init);
+module_exit(fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION ("Twofish Cipher Algorithm, asm optimized");
+MODULE_ALIAS("twofish");
+MODULE_ALIAS("twofish-asm");
-- 
cgit v1.2.3-59-g8ed1b


From a1f35ba374bc421ab33e40163be2b57995b09962 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Mon, 21 Jan 2008 17:22:46 -0800
Subject: [SPARC64]: Fix of section mismatch warnings.

Fix following Section mismatch warning in sparc64:

WARNING: arch/sparc64/kernel/built-in.o(.text+0x13dec): Section mismatch: reference to .devinit.text:pci_scan_one_pbm (between 'psycho_scan_bus' and 'psycho_pbm_init')
WARNING: arch/sparc64/kernel/built-in.o(.text+0x14b58): Section mismatch: reference to .devinit.text:pci_scan_one_pbm (between 'sabre_scan_bus' and 'sabre_init')
WARNING: arch/sparc64/kernel/built-in.o(.text+0x15ea4): Section mismatch: reference to .devinit.text:pci_scan_one_pbm (between 'schizo_scan_bus' and 'schizo_pbm_init')
WARNING: arch/sparc64/kernel/built-in.o(.text+0x17780): Section mismatch: reference to .devinit.text:pci_scan_one_pbm (between 'pci_sun4v_scan_bus' and 'pci_sun4v_get_head')
WARNING: arch/sparc64/kernel/built-in.o(.text+0x17d5c): Section mismatch: reference to .devinit.text:pci_scan_one_pbm (between 'pci_fire_scan_bus' and 'pci_fire_get_head')
WARNING: arch/sparc64/kernel/built-in.o(.text+0x23860): Section mismatch: reference to .devinit.text:vio_dev_release (between 'vio_create_one' and 'vio_add')
WARNING: arch/sparc64/kernel/built-in.o(.text+0x23868): Section mismatch: reference to .devinit.text:vio_dev_release (between 'vio_create_one' and 'vio_add')

The pci_* were all missing __init annotations.
For the vio.c case it was a function with a wrong annotation which was removed.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc64/kernel/pci_fire.c   |  8 ++++----
 arch/sparc64/kernel/pci_psycho.c |  6 +++---
 arch/sparc64/kernel/pci_sabre.c  |  7 ++++---
 arch/sparc64/kernel/pci_schizo.c | 17 +++++++++--------
 arch/sparc64/kernel/pci_sun4v.c  |  5 +++--
 arch/sparc64/kernel/vio.c        |  2 +-
 6 files changed, 24 insertions(+), 21 deletions(-)

(limited to 'arch')

diff --git a/arch/sparc64/kernel/pci_fire.c b/arch/sparc64/kernel/pci_fire.c
index fef3b37487bf..7571ed563147 100644
--- a/arch/sparc64/kernel/pci_fire.c
+++ b/arch/sparc64/kernel/pci_fire.c
@@ -30,7 +30,7 @@
 			       "i" (ASI_PHYS_BYPASS_EC_E) \
 			     : "memory")
 
-static void pci_fire_scan_bus(struct pci_pbm_info *pbm)
+static void __init pci_fire_scan_bus(struct pci_pbm_info *pbm)
 {
 	pbm->pci_bus = pci_scan_one_pbm(pbm);
 
@@ -434,8 +434,8 @@ static void pci_fire_hw_init(struct pci_pbm_info *pbm)
 	fire_write(pbm->pbm_regs + FIRE_PEC_IENAB, ~(u64)0);
 }
 
-static int pci_fire_pbm_init(struct pci_controller_info *p,
-			     struct device_node *dp, u32 portid)
+static int __init pci_fire_pbm_init(struct pci_controller_info *p,
+				    struct device_node *dp, u32 portid)
 {
 	const struct linux_prom64_registers *regs;
 	struct pci_pbm_info *pbm;
@@ -488,7 +488,7 @@ static inline int portid_compare(u32 x, u32 y)
 	return 0;
 }
 
-void fire_pci_init(struct device_node *dp, const char *model_name)
+void __init fire_pci_init(struct device_node *dp, const char *model_name)
 {
 	struct pci_controller_info *p;
 	u32 portid = of_getintprop_default(dp, "portid", 0xff);
diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
index d27ee5d528a2..0bad96e5d184 100644
--- a/arch/sparc64/kernel/pci_psycho.c
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -801,7 +801,7 @@ static void pbm_config_busmastering(struct pci_pbm_info *pbm)
 	pci_config_write8(addr, 64);
 }
 
-static void psycho_scan_bus(struct pci_pbm_info *pbm)
+static void __init psycho_scan_bus(struct pci_pbm_info *pbm)
 {
 	pbm_config_busmastering(pbm);
 	pbm->is_66mhz_capable = 0;
@@ -965,7 +965,7 @@ static void psycho_pbm_strbuf_init(struct pci_pbm_info *pbm,
 #define PSYCHO_MEMSPACE_B	0x180000000UL
 #define PSYCHO_MEMSPACE_SIZE	0x07fffffffUL
 
-static void psycho_pbm_init(struct pci_controller_info *p,
+static void __init psycho_pbm_init(struct pci_controller_info *p,
 			    struct device_node *dp, int is_pbm_a)
 {
 	struct property *prop;
@@ -1012,7 +1012,7 @@ static void psycho_pbm_init(struct pci_controller_info *p,
 
 #define PSYCHO_CONFIGSPACE	0x001000000UL
 
-void psycho_init(struct device_node *dp, char *model_name)
+void __init psycho_init(struct device_node *dp, char *model_name)
 {
 	struct linux_prom64_registers *pr_regs;
 	struct pci_controller_info *p;
diff --git a/arch/sparc64/kernel/pci_sabre.c b/arch/sparc64/kernel/pci_sabre.c
index fba67c3d8809..1c5f5fa2339f 100644
--- a/arch/sparc64/kernel/pci_sabre.c
+++ b/arch/sparc64/kernel/pci_sabre.c
@@ -633,7 +633,7 @@ static void apb_init(struct pci_bus *sabre_bus)
 	}
 }
 
-static void sabre_scan_bus(struct pci_pbm_info *pbm)
+static void __init sabre_scan_bus(struct pci_pbm_info *pbm)
 {
 	static int once;
 
@@ -731,7 +731,8 @@ static int sabre_iommu_init(struct pci_pbm_info *pbm,
 	return 0;
 }
 
-static void sabre_pbm_init(struct pci_controller_info *p, struct pci_pbm_info *pbm, struct device_node *dp)
+static void __init sabre_pbm_init(struct pci_controller_info *p,
+				  struct pci_pbm_info *pbm, struct device_node *dp)
 {
 	pbm->name = dp->full_name;
 	printk("%s: SABRE PCI Bus Module\n", pbm->name);
@@ -750,7 +751,7 @@ static void sabre_pbm_init(struct pci_controller_info *p, struct pci_pbm_info *p
 	pci_determine_mem_io_space(pbm);
 }
 
-void sabre_init(struct device_node *dp, char *model_name)
+void __init sabre_init(struct device_node *dp, char *model_name)
 {
 	const struct linux_prom64_registers *pr_regs;
 	struct pci_controller_info *p;
diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index e752e75cce83..e30609362322 100644
--- a/arch/sparc64/kernel/pci_schizo.c
+++ b/arch/sparc64/kernel/pci_schizo.c
@@ -1084,7 +1084,7 @@ static void pbm_config_busmastering(struct pci_pbm_info *pbm)
 	pci_config_write8(addr, 64);
 }
 
-static void schizo_scan_bus(struct pci_pbm_info *pbm)
+static void __init schizo_scan_bus(struct pci_pbm_info *pbm)
 {
 	pbm_config_busmastering(pbm);
 	pbm->is_66mhz_capable =
@@ -1333,9 +1333,9 @@ static void schizo_pbm_hw_init(struct pci_pbm_info *pbm)
 	}
 }
 
-static int schizo_pbm_init(struct pci_controller_info *p,
-			   struct device_node *dp, u32 portid,
-			   int chip_type)
+static int __init schizo_pbm_init(struct pci_controller_info *p,
+				  struct device_node *dp, u32 portid,
+				  int chip_type)
 {
 	const struct linux_prom64_registers *regs;
 	struct pci_pbm_info *pbm;
@@ -1430,7 +1430,8 @@ static inline int portid_compare(u32 x, u32 y, int chip_type)
 	return (x == y);
 }
 
-static void __schizo_init(struct device_node *dp, char *model_name, int chip_type)
+static void __init __schizo_init(struct device_node *dp, char *model_name,
+				 int chip_type)
 {
 	struct pci_controller_info *p;
 	struct pci_pbm_info *pbm;
@@ -1474,17 +1475,17 @@ fatal_memory_error:
 	prom_halt();
 }
 
-void schizo_init(struct device_node *dp, char *model_name)
+void __init schizo_init(struct device_node *dp, char *model_name)
 {
 	__schizo_init(dp, model_name, PBM_CHIP_TYPE_SCHIZO);
 }
 
-void schizo_plus_init(struct device_node *dp, char *model_name)
+void __init schizo_plus_init(struct device_node *dp, char *model_name)
 {
 	__schizo_init(dp, model_name, PBM_CHIP_TYPE_SCHIZO_PLUS);
 }
 
-void tomatillo_init(struct device_node *dp, char *model_name)
+void __init tomatillo_init(struct device_node *dp, char *model_name)
 {
 	__schizo_init(dp, model_name, PBM_CHIP_TYPE_TOMATILLO);
 }
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index e587a372f3fe..1aa8e044b105 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -612,7 +612,7 @@ const struct dma_ops sun4v_dma_ops = {
 	.sync_sg_for_cpu		= dma_4v_sync_sg_for_cpu,
 };
 
-static void pci_sun4v_scan_bus(struct pci_pbm_info *pbm)
+static void __init pci_sun4v_scan_bus(struct pci_pbm_info *pbm)
 {
 	struct property *prop;
 	struct device_node *dp;
@@ -960,7 +960,8 @@ static void pci_sun4v_msi_init(struct pci_pbm_info *pbm)
 }
 #endif /* !(CONFIG_PCI_MSI) */
 
-static void __init pci_sun4v_pbm_init(struct pci_controller_info *p, struct device_node *dp, u32 devhandle)
+static void __init pci_sun4v_pbm_init(struct pci_controller_info *p,
+				      struct device_node *dp, u32 devhandle)
 {
 	struct pci_pbm_info *pbm;
 
diff --git a/arch/sparc64/kernel/vio.c b/arch/sparc64/kernel/vio.c
index 0c1ee619d814..e78b3517940b 100644
--- a/arch/sparc64/kernel/vio.c
+++ b/arch/sparc64/kernel/vio.c
@@ -131,7 +131,7 @@ void vio_unregister_driver(struct vio_driver *viodrv)
 }
 EXPORT_SYMBOL(vio_unregister_driver);
 
-static void __devinit vio_dev_release(struct device *dev)
+static void vio_dev_release(struct device *dev)
 {
 	kfree(to_vio_dev(dev));
 }
-- 
cgit v1.2.3-59-g8ed1b


From 872e2be7c4056496c2871bd9b0f2fae6c374fe47 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@computergmbh.de>
Date: Tue, 22 Jan 2008 18:29:20 -0800
Subject: [SPARC]: Constify function pointer tables.

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/setup.c      | 2 +-
 arch/sparc64/kernel/setup.c    | 2 +-
 arch/sparc64/solaris/socksys.c | 2 +-
 fs/openpromfs/inode.c          | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
index f8228383895a..d07bc74773aa 100644
--- a/arch/sparc/kernel/setup.c
+++ b/arch/sparc/kernel/setup.c
@@ -379,7 +379,7 @@ static void c_stop(struct seq_file *m, void *v)
 {
 }
 
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
 	.start =c_start,
 	.next =	c_next,
 	.stop =	c_stop,
diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c
index 0f5be828ee92..a813441b358f 100644
--- a/arch/sparc64/kernel/setup.c
+++ b/arch/sparc64/kernel/setup.c
@@ -421,7 +421,7 @@ static void c_stop(struct seq_file *m, void *v)
 {
 }
 
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
 	.start =c_start,
 	.next =	c_next,
 	.stop =	c_stop,
diff --git a/arch/sparc64/solaris/socksys.c b/arch/sparc64/solaris/socksys.c
index 7736411f244f..5f064183c874 100644
--- a/arch/sparc64/solaris/socksys.c
+++ b/arch/sparc64/solaris/socksys.c
@@ -54,7 +54,7 @@ extern void mykfree(void *);
 
 static unsigned int (*sock_poll)(struct file *, poll_table *);
 
-static struct file_operations socksys_file_ops = {
+static const struct file_operations socksys_file_ops = {
 	/* Currently empty */
 };
 
diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index d88173840082..6b7ff1618945 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -131,7 +131,7 @@ static void property_stop(struct seq_file *f, void *v)
 	/* Nothing to do */
 }
 
-static struct seq_operations property_op = {
+static const struct seq_operations property_op = {
 	.start		= property_start,
 	.next		= property_next,
 	.stop		= property_stop,
-- 
cgit v1.2.3-59-g8ed1b


From f9c4cfe95451b7f4531d73d2a8a6651cba9760ab Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 23 Jan 2008 16:07:17 -0800
Subject: xen: disable vcpu_info placement for now

There have been several reports of Xen guest domains locking up when
using vcpu_info structure placement.  Disable it for now.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/x86/xen/enlighten.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index b6af3ea43c73..79ad15252150 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -95,7 +95,7 @@ struct shared_info *HYPERVISOR_shared_info = (void *)&dummy_shared_info;
  *
  * 0: not available, 1: available
  */
-static int have_vcpu_info_placement = 1;
+static int have_vcpu_info_placement = 0;
 
 static void __init xen_vcpu_setup(int cpu)
 {
-- 
cgit v1.2.3-59-g8ed1b


From de195fd0016f9ab85f1d596dca48dade33f26d36 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 23 Jan 2008 21:32:04 -0800
Subject: [SPARC64]: Partially revert "Constify function pointer tables."
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This partially reverts 872e2be7c4056496c2871bd9b0f2fae6c374fe47
(Constify function pointer tables.)

The solaris/socksys.c transformation wasn't valid:

arch/sparc64/solaris/socksys.c:192: error: assignment of read-only variable ‘socksys_file_ops’
arch/sparc64/solaris/socksys.c:195: error: assignment of read-only variable ‘socksys_file_ops’
arch/sparc64/solaris/socksys.c:196: error: assignment of read-only variable ‘socksys_file_ops’

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc64/solaris/socksys.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sparc64/solaris/socksys.c b/arch/sparc64/solaris/socksys.c
index 5f064183c874..7736411f244f 100644
--- a/arch/sparc64/solaris/socksys.c
+++ b/arch/sparc64/solaris/socksys.c
@@ -54,7 +54,7 @@ extern void mykfree(void *);
 
 static unsigned int (*sock_poll)(struct file *, poll_table *);
 
-static const struct file_operations socksys_file_ops = {
+static struct file_operations socksys_file_ops = {
 	/* Currently empty */
 };
 
-- 
cgit v1.2.3-59-g8ed1b


From c2f3dabefa73fe3307578553f456e93f0a1bca08 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Thu, 24 Jan 2008 05:52:13 -0800
Subject: sysctl: kill binary sysctl KERN_PPC_L2CR

: Stefan Roese <sr@denx.de> said:
> ppc: 4xx: sysctl table check failed: /kernel/l2cr .1.31 Missing strategy
>
> I'm seeing this error message when booting an recent arch/ppc kernel on
> 4xx platforms (tested on Ocotea and other 4xx platforms). Booting NFS
> rootfs still works fine, but this message kind of makes me "nervous".
> This is not seen on 4xx arch/powerpc platforms. Here the bootlog:

Because the data field was never filled and a binary sysctl handler was
never written this sysctl has never been usable through the sys_sysctl
interface.  So just remove the binary sysctl number.  Making the kernel
sanity checks happy.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Reported-by: Stefan Roese <sr@denx.de>
Cc: Josh Boyer <jwboyer@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/ppc/kernel/ppc_htab.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/ppc/kernel/ppc_htab.c b/arch/ppc/kernel/ppc_htab.c
index aa07b63c0a6c..9ed36dd9cbff 100644
--- a/arch/ppc/kernel/ppc_htab.c
+++ b/arch/ppc/kernel/ppc_htab.c
@@ -436,7 +436,6 @@ int proc_dol2crvec(ctl_table *table, int write, struct file *filp,
  */
 static ctl_table htab_ctl_table[]={
 	{
-		.ctl_name	= KERN_PPC_L2CR,
 		.procname	= "l2cr",
 		.mode		= 0644,
 		.proc_handler	= &proc_dol2crvec,
-- 
cgit v1.2.3-59-g8ed1b


From 775b64d2b6ca37697de925f70799c710aab5849a Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Date: Sat, 12 Jan 2008 20:40:46 +0100
Subject: PM: Acquire device locks on suspend

This patch reorganizes the way suspend and resume notifications are
sent to drivers.  The major changes are that now the PM core acquires
every device semaphore before calling the methods, and calls to
device_add() during suspends will fail, while calls to device_del()
during suspends will block.

It also provides a way to safely remove a suspended device with the
help of the PM core, by using the device_pm_schedule_removal() callback
introduced specifically for this purpose, and updates two drivers (msr
and cpuid) that need to use it.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/x86/kernel/cpuid.c    |   6 +-
 arch/x86/kernel/msr.c      |   6 +-
 drivers/base/core.c        |  65 +++++-
 drivers/base/power/main.c  | 502 +++++++++++++++++++++++++++++----------------
 drivers/base/power/power.h |  12 ++
 include/linux/device.h     |   8 +
 6 files changed, 413 insertions(+), 186 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index 05c9936a16cc..d387c770c518 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -157,15 +157,15 @@ static int __cpuinit cpuid_class_cpu_callback(struct notifier_block *nfb,
 
 	switch (action) {
 	case CPU_UP_PREPARE:
-	case CPU_UP_PREPARE_FROZEN:
 		err = cpuid_device_create(cpu);
 		break;
 	case CPU_UP_CANCELED:
-	case CPU_UP_CANCELED_FROZEN:
 	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
 		cpuid_device_destroy(cpu);
 		break;
+	case CPU_UP_CANCELED_FROZEN:
+		destroy_suspended_device(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
+		break;
 	}
 	return err ? NOTIFY_BAD : NOTIFY_OK;
 }
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index ee6eba4ecfea..21f6e3c0be18 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -155,15 +155,15 @@ static int __cpuinit msr_class_cpu_callback(struct notifier_block *nfb,
 
 	switch (action) {
 	case CPU_UP_PREPARE:
-	case CPU_UP_PREPARE_FROZEN:
 		err = msr_device_create(cpu);
 		break;
 	case CPU_UP_CANCELED:
-	case CPU_UP_CANCELED_FROZEN:
 	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
 		msr_device_destroy(cpu);
 		break;
+	case CPU_UP_CANCELED_FROZEN:
+		destroy_suspended_device(msr_class, MKDEV(MSR_MAJOR, cpu));
+		break;
 	}
 	return err ? NOTIFY_BAD : NOTIFY_OK;
 }
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 2683eac30c68..ce6b64c489ad 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -726,11 +726,20 @@ int device_add(struct device *dev)
 {
 	struct device *parent = NULL;
 	struct class_interface *class_intf;
-	int error = -EINVAL;
+	int error;
+
+	error = pm_sleep_lock();
+	if (error) {
+		dev_warn(dev, "Suspicious %s during suspend\n", __FUNCTION__);
+		dump_stack();
+		return error;
+	}
 
 	dev = get_device(dev);
-	if (!dev || !strlen(dev->bus_id))
+	if (!dev || !strlen(dev->bus_id)) {
+		error = -EINVAL;
 		goto Error;
+	}
 
 	pr_debug("DEV: registering device: ID = '%s'\n", dev->bus_id);
 
@@ -795,6 +804,7 @@ int device_add(struct device *dev)
 	}
  Done:
 	put_device(dev);
+	pm_sleep_unlock();
 	return error;
  BusError:
 	device_pm_remove(dev);
@@ -905,6 +915,7 @@ void device_del(struct device * dev)
 	struct device * parent = dev->parent;
 	struct class_interface *class_intf;
 
+	device_pm_remove(dev);
 	if (parent)
 		klist_del(&dev->knode_parent);
 	if (MAJOR(dev->devt))
@@ -981,7 +992,6 @@ void device_del(struct device * dev)
 	if (dev->bus)
 		blocking_notifier_call_chain(&dev->bus->bus_notifier,
 					     BUS_NOTIFY_DEL_DEVICE, dev);
-	device_pm_remove(dev);
 	kobject_uevent(&dev->kobj, KOBJ_REMOVE);
 	kobject_del(&dev->kobj);
 	if (parent)
@@ -1156,14 +1166,11 @@ error:
 EXPORT_SYMBOL_GPL(device_create);
 
 /**
- * device_destroy - removes a device that was created with device_create()
+ * find_device - finds a device that was created with device_create()
  * @class: pointer to the struct class that this device was registered with
  * @devt: the dev_t of the device that was previously registered
- *
- * This call unregisters and cleans up a device that was created with a
- * call to device_create().
  */
-void device_destroy(struct class *class, dev_t devt)
+static struct device *find_device(struct class *class, dev_t devt)
 {
 	struct device *dev = NULL;
 	struct device *dev_tmp;
@@ -1176,12 +1183,54 @@ void device_destroy(struct class *class, dev_t devt)
 		}
 	}
 	up(&class->sem);
+	return dev;
+}
 
+/**
+ * device_destroy - removes a device that was created with device_create()
+ * @class: pointer to the struct class that this device was registered with
+ * @devt: the dev_t of the device that was previously registered
+ *
+ * This call unregisters and cleans up a device that was created with a
+ * call to device_create().
+ */
+void device_destroy(struct class *class, dev_t devt)
+{
+	struct device *dev;
+
+	dev = find_device(class, devt);
 	if (dev)
 		device_unregister(dev);
 }
 EXPORT_SYMBOL_GPL(device_destroy);
 
+#ifdef CONFIG_PM_SLEEP
+/**
+ * destroy_suspended_device - asks the PM core to remove a suspended device
+ * @class: pointer to the struct class that this device was registered with
+ * @devt: the dev_t of the device that was previously registered
+ *
+ * This call notifies the PM core of the necessity to unregister a suspended
+ * device created with a call to device_create() (devices cannot be
+ * unregistered directly while suspended, since the PM core holds their
+ * semaphores at that time).
+ *
+ * It can only be called within the scope of a system sleep transition.  In
+ * practice this means it has to be directly or indirectly invoked either by
+ * a suspend or resume method, or by the PM core (e.g. via
+ * disable_nonboot_cpus() or enable_nonboot_cpus()).
+ */
+void destroy_suspended_device(struct class *class, dev_t devt)
+{
+	struct device *dev;
+
+	dev = find_device(class, devt);
+	if (dev)
+		device_pm_schedule_removal(dev);
+}
+EXPORT_SYMBOL_GPL(destroy_suspended_device);
+#endif /* CONFIG_PM_SLEEP */
+
 /**
  * device_rename - renames a device
  * @dev: the pointer to the struct device to be renamed
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 691ffb64cc37..200ed5fafd50 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -24,20 +24,45 @@
 #include <linux/mutex.h>
 #include <linux/pm.h>
 #include <linux/resume-trace.h>
+#include <linux/rwsem.h>
 
 #include "../base.h"
 #include "power.h"
 
+/*
+ * The entries in the dpm_active list are in a depth first order, simply
+ * because children are guaranteed to be discovered after parents, and
+ * are inserted at the back of the list on discovery.
+ *
+ * All the other lists are kept in the same order, for consistency.
+ * However the lists aren't always traversed in the same order.
+ * Semaphores must be acquired from the top (i.e., front) down
+ * and released in the opposite order.  Devices must be suspended
+ * from the bottom (i.e., end) up and resumed in the opposite order.
+ * That way no parent will be suspended while it still has an active
+ * child.
+ *
+ * Since device_pm_add() may be called with a device semaphore held,
+ * we must never try to acquire a device semaphore while holding
+ * dpm_list_mutex.
+ */
+
 LIST_HEAD(dpm_active);
+static LIST_HEAD(dpm_locked);
 static LIST_HEAD(dpm_off);
 static LIST_HEAD(dpm_off_irq);
+static LIST_HEAD(dpm_destroy);
 
-static DEFINE_MUTEX(dpm_mtx);
 static DEFINE_MUTEX(dpm_list_mtx);
 
-int (*platform_enable_wakeup)(struct device *dev, int is_on);
+static DECLARE_RWSEM(pm_sleep_rwsem);
 
+int (*platform_enable_wakeup)(struct device *dev, int is_on);
 
+/**
+ *	device_pm_add - add a device to the list of active devices
+ *	@dev:	Device to be added to the list
+ */
 void device_pm_add(struct device *dev)
 {
 	pr_debug("PM: Adding info for %s:%s\n",
@@ -48,8 +73,36 @@ void device_pm_add(struct device *dev)
 	mutex_unlock(&dpm_list_mtx);
 }
 
+/**
+ *	device_pm_remove - remove a device from the list of active devices
+ *	@dev:	Device to be removed from the list
+ *
+ *	This function also removes the device's PM-related sysfs attributes.
+ */
 void device_pm_remove(struct device *dev)
 {
+	/*
+	 * If this function is called during a suspend, it will be blocked,
+	 * because we're holding the device's semaphore at that time, which may
+	 * lead to a deadlock.  In that case we want to print a warning.
+	 * However, it may also be called by unregister_dropped_devices() with
+	 * the device's semaphore released, in which case the warning should
+	 * not be printed.
+	 */
+	if (down_trylock(&dev->sem)) {
+		if (down_read_trylock(&pm_sleep_rwsem)) {
+			/* No suspend in progress, wait on dev->sem */
+			down(&dev->sem);
+			up_read(&pm_sleep_rwsem);
+		} else {
+			/* Suspend in progress, we may deadlock */
+			dev_warn(dev, "Suspicious %s during suspend\n",
+				__FUNCTION__);
+			dump_stack();
+			/* The user has been warned ... */
+			down(&dev->sem);
+		}
+	}
 	pr_debug("PM: Removing info for %s:%s\n",
 		 dev->bus ? dev->bus->name : "No Bus",
 		 kobject_name(&dev->kobj));
@@ -57,25 +110,124 @@ void device_pm_remove(struct device *dev)
 	dpm_sysfs_remove(dev);
 	list_del_init(&dev->power.entry);
 	mutex_unlock(&dpm_list_mtx);
+	up(&dev->sem);
+}
+
+/**
+ *	device_pm_schedule_removal - schedule the removal of a suspended device
+ *	@dev:	Device to destroy
+ *
+ *	Moves the device to the dpm_destroy list for further processing by
+ *	unregister_dropped_devices().
+ */
+void device_pm_schedule_removal(struct device *dev)
+{
+	pr_debug("PM: Preparing for removal: %s:%s\n",
+		dev->bus ? dev->bus->name : "No Bus",
+		kobject_name(&dev->kobj));
+	mutex_lock(&dpm_list_mtx);
+	list_move_tail(&dev->power.entry, &dpm_destroy);
+	mutex_unlock(&dpm_list_mtx);
+}
+
+/**
+ *	pm_sleep_lock - mutual exclusion for registration and suspend
+ *
+ *	Returns 0 if no suspend is underway and device registration
+ *	may proceed, otherwise -EBUSY.
+ */
+int pm_sleep_lock(void)
+{
+	if (down_read_trylock(&pm_sleep_rwsem))
+		return 0;
+
+	return -EBUSY;
+}
+
+/**
+ *	pm_sleep_unlock - mutual exclusion for registration and suspend
+ *
+ *	This routine undoes the effect of device_pm_add_lock
+ *	when a device's registration is complete.
+ */
+void pm_sleep_unlock(void)
+{
+	up_read(&pm_sleep_rwsem);
 }
 
 
 /*------------------------- Resume routines -------------------------*/
 
 /**
- *	resume_device - Restore state for one device.
+ *	resume_device_early - Power on one device (early resume).
  *	@dev:	Device.
  *
+ *	Must be called with interrupts disabled.
  */
-
-static int resume_device(struct device * dev)
+static int resume_device_early(struct device *dev)
 {
 	int error = 0;
 
 	TRACE_DEVICE(dev);
 	TRACE_RESUME(0);
 
-	down(&dev->sem);
+	if (dev->bus && dev->bus->resume_early) {
+		dev_dbg(dev, "EARLY resume\n");
+		error = dev->bus->resume_early(dev);
+	}
+
+	TRACE_RESUME(error);
+	return error;
+}
+
+/**
+ *	dpm_power_up - Power on all regular (non-sysdev) devices.
+ *
+ *	Walk the dpm_off_irq list and power each device up. This
+ *	is used for devices that required they be powered down with
+ *	interrupts disabled. As devices are powered on, they are moved
+ *	to the dpm_off list.
+ *
+ *	Must be called with interrupts disabled and only one CPU running.
+ */
+static void dpm_power_up(void)
+{
+
+	while (!list_empty(&dpm_off_irq)) {
+		struct list_head *entry = dpm_off_irq.next;
+		struct device *dev = to_device(entry);
+
+		list_move_tail(entry, &dpm_off);
+		resume_device_early(dev);
+	}
+}
+
+/**
+ *	device_power_up - Turn on all devices that need special attention.
+ *
+ *	Power on system devices, then devices that required we shut them down
+ *	with interrupts disabled.
+ *
+ *	Must be called with interrupts disabled.
+ */
+void device_power_up(void)
+{
+	sysdev_resume();
+	dpm_power_up();
+}
+EXPORT_SYMBOL_GPL(device_power_up);
+
+/**
+ *	resume_device - Restore state for one device.
+ *	@dev:	Device.
+ *
+ */
+static int resume_device(struct device *dev)
+{
+	int error = 0;
+
+	TRACE_DEVICE(dev);
+	TRACE_RESUME(0);
 
 	if (dev->bus && dev->bus->resume) {
 		dev_dbg(dev,"resuming\n");
@@ -92,126 +244,94 @@ static int resume_device(struct device * dev)
 		error = dev->class->resume(dev);
 	}
 
-	up(&dev->sem);
-
 	TRACE_RESUME(error);
 	return error;
 }
 
-
-static int resume_device_early(struct device * dev)
-{
-	int error = 0;
-
-	TRACE_DEVICE(dev);
-	TRACE_RESUME(0);
-	if (dev->bus && dev->bus->resume_early) {
-		dev_dbg(dev,"EARLY resume\n");
-		error = dev->bus->resume_early(dev);
-	}
-	TRACE_RESUME(error);
-	return error;
-}
-
-/*
- * Resume the devices that have either not gone through
- * the late suspend, or that did go through it but also
- * went through the early resume
+/**
+ *	dpm_resume - Resume every device.
+ *
+ *	Resume the devices that have either not gone through
+ *	the late suspend, or that did go through it but also
+ *	went through the early resume.
+ *
+ *	Take devices from the dpm_off_list, resume them,
+ *	and put them on the dpm_locked list.
  */
 static void dpm_resume(void)
 {
 	mutex_lock(&dpm_list_mtx);
 	while(!list_empty(&dpm_off)) {
-		struct list_head * entry = dpm_off.next;
-		struct device * dev = to_device(entry);
-
-		get_device(dev);
-		list_move_tail(entry, &dpm_active);
+		struct list_head *entry = dpm_off.next;
+		struct device *dev = to_device(entry);
 
+		list_move_tail(entry, &dpm_locked);
 		mutex_unlock(&dpm_list_mtx);
 		resume_device(dev);
 		mutex_lock(&dpm_list_mtx);
-		put_device(dev);
 	}
 	mutex_unlock(&dpm_list_mtx);
 }
 
-
 /**
- *	device_resume - Restore state of each device in system.
+ *	unlock_all_devices - Release each device's semaphore
  *
- *	Walk the dpm_off list, remove each entry, resume the device,
- *	then add it to the dpm_active list.
+ *	Go through the dpm_off list.  Put each device on the dpm_active
+ *	list and unlock it.
  */
-
-void device_resume(void)
+static void unlock_all_devices(void)
 {
-	might_sleep();
-	mutex_lock(&dpm_mtx);
-	dpm_resume();
-	mutex_unlock(&dpm_mtx);
-}
-
-EXPORT_SYMBOL_GPL(device_resume);
+	mutex_lock(&dpm_list_mtx);
+	while (!list_empty(&dpm_locked)) {
+		struct list_head *entry = dpm_locked.prev;
+		struct device *dev = to_device(entry);
 
+		list_move(entry, &dpm_active);
+		up(&dev->sem);
+	}
+	mutex_unlock(&dpm_list_mtx);
+}
 
 /**
- *	dpm_power_up - Power on some devices.
- *
- *	Walk the dpm_off_irq list and power each device up. This
- *	is used for devices that required they be powered down with
- *	interrupts disabled. As devices are powered on, they are moved
- *	to the dpm_active list.
+ *	unregister_dropped_devices - Unregister devices scheduled for removal
  *
- *	Interrupts must be disabled when calling this.
+ *	Unregister all devices on the dpm_destroy list.
  */
-
-static void dpm_power_up(void)
+static void unregister_dropped_devices(void)
 {
-	while(!list_empty(&dpm_off_irq)) {
-		struct list_head * entry = dpm_off_irq.next;
-		struct device * dev = to_device(entry);
+	mutex_lock(&dpm_list_mtx);
+	while (!list_empty(&dpm_destroy)) {
+		struct list_head *entry = dpm_destroy.next;
+		struct device *dev = to_device(entry);
 
-		list_move_tail(entry, &dpm_off);
-		resume_device_early(dev);
+		up(&dev->sem);
+		mutex_unlock(&dpm_list_mtx);
+		/* This also removes the device from the list */
+		device_unregister(dev);
+		mutex_lock(&dpm_list_mtx);
 	}
+	mutex_unlock(&dpm_list_mtx);
 }
 
-
 /**
- *	device_power_up - Turn on all devices that need special attention.
+ *	device_resume - Restore state of each device in system.
  *
- *	Power on system devices then devices that required we shut them down
- *	with interrupts disabled.
- *	Called with interrupts disabled.
+ *	Resume all the devices, unlock them all, and allow new
+ *	devices to be registered once again.
  */
-
-void device_power_up(void)
+void device_resume(void)
 {
-	sysdev_resume();
-	dpm_power_up();
+	might_sleep();
+	dpm_resume();
+	unlock_all_devices();
+	unregister_dropped_devices();
+	up_write(&pm_sleep_rwsem);
 }
-
-EXPORT_SYMBOL_GPL(device_power_up);
+EXPORT_SYMBOL_GPL(device_resume);
 
 
 /*------------------------- Suspend routines -------------------------*/
 
-/*
- * The entries in the dpm_active list are in a depth first order, simply
- * because children are guaranteed to be discovered after parents, and
- * are inserted at the back of the list on discovery.
- *
- * All list on the suspend path are done in reverse order, so we operate
- * on the leaves of the device tree (or forests, depending on how you want
- * to look at it ;) first. As nodes are removed from the back of the list,
- * they are inserted into the front of their destintation lists.
- *
- * Things are the reverse on the resume path - iterations are done in
- * forward order, and nodes are inserted at the back of their destination
- * lists. This way, the ancestors will be accessed before their descendents.
- */
-
 static inline char *suspend_verb(u32 event)
 {
 	switch (event) {
@@ -222,7 +342,6 @@ static inline char *suspend_verb(u32 event)
 	}
 }
 
-
 static void
 suspend_device_dbg(struct device *dev, pm_message_t state, char *info)
 {
@@ -232,16 +351,73 @@ suspend_device_dbg(struct device *dev, pm_message_t state, char *info)
 }
 
 /**
- *	suspend_device - Save state of one device.
+ *	suspend_device_late - Shut down one device (late suspend).
  *	@dev:	Device.
  *	@state:	Power state device is entering.
+ *
+ *	This is called with interrupts off and only a single CPU running.
  */
+static int suspend_device_late(struct device *dev, pm_message_t state)
+{
+	int error = 0;
 
-static int suspend_device(struct device * dev, pm_message_t state)
+	if (dev->bus && dev->bus->suspend_late) {
+		suspend_device_dbg(dev, state, "LATE ");
+		error = dev->bus->suspend_late(dev, state);
+		suspend_report_result(dev->bus->suspend_late, error);
+	}
+	return error;
+}
+
+/**
+ *	device_power_down - Shut down special devices.
+ *	@state:		Power state to enter.
+ *
+ *	Power down devices that require interrupts to be disabled
+ *	and move them from the dpm_off list to the dpm_off_irq list.
+ *	Then power down system devices.
+ *
+ *	Must be called with interrupts disabled and only one CPU running.
+ */
+int device_power_down(pm_message_t state)
+{
+	int error = 0;
+
+	while (!list_empty(&dpm_off)) {
+		struct list_head *entry = dpm_off.prev;
+		struct device *dev = to_device(entry);
+
+		list_del_init(&dev->power.entry);
+		error = suspend_device_late(dev, state);
+		if (error) {
+			printk(KERN_ERR "Could not power down device %s: "
+					"error %d\n",
+					kobject_name(&dev->kobj), error);
+			if (list_empty(&dev->power.entry))
+				list_add(&dev->power.entry, &dpm_off);
+			break;
+		}
+		if (list_empty(&dev->power.entry))
+			list_add(&dev->power.entry, &dpm_off_irq);
+	}
+
+	if (!error)
+		error = sysdev_suspend(state);
+	if (error)
+		dpm_power_up();
+	return error;
+}
+EXPORT_SYMBOL_GPL(device_power_down);
+
+/**
+ *	suspend_device - Save state of one device.
+ *	@dev:	Device.
+ *	@state:	Power state device is entering.
+ */
+int suspend_device(struct device *dev, pm_message_t state)
 {
 	int error = 0;
 
-	down(&dev->sem);
 	if (dev->power.power_state.event) {
 		dev_dbg(dev, "PM: suspend %d-->%d\n",
 			dev->power.power_state.event, state.event);
@@ -264,123 +440,105 @@ static int suspend_device(struct device * dev, pm_message_t state)
 		error = dev->bus->suspend(dev, state);
 		suspend_report_result(dev->bus->suspend, error);
 	}
-	up(&dev->sem);
-	return error;
-}
-
-
-/*
- * This is called with interrupts off, only a single CPU
- * running. We can't acquire a mutex or semaphore (and we don't
- * need the protection)
- */
-static int suspend_device_late(struct device *dev, pm_message_t state)
-{
-	int error = 0;
-
-	if (dev->bus && dev->bus->suspend_late) {
-		suspend_device_dbg(dev, state, "LATE ");
-		error = dev->bus->suspend_late(dev, state);
-		suspend_report_result(dev->bus->suspend_late, error);
-	}
 	return error;
 }
 
 /**
- *	device_suspend - Save state and stop all devices in system.
- *	@state:		Power state to put each device in.
+ *	dpm_suspend - Suspend every device.
+ *	@state:	Power state to put each device in.
  *
- *	Walk the dpm_active list, call ->suspend() for each device, and move
- *	it to the dpm_off list.
+ *	Walk the dpm_locked list.  Suspend each device and move it
+ *	to the dpm_off list.
  *
  *	(For historical reasons, if it returns -EAGAIN, that used to mean
  *	that the device would be called again with interrupts disabled.
  *	These days, we use the "suspend_late()" callback for that, so we
  *	print a warning and consider it an error).
- *
- *	If we get a different error, try and back out.
- *
- *	If we hit a failure with any of the devices, call device_resume()
- *	above to bring the suspended devices back to life.
- *
  */
-
-int device_suspend(pm_message_t state)
+static int dpm_suspend(pm_message_t state)
 {
 	int error = 0;
 
-	might_sleep();
-	mutex_lock(&dpm_mtx);
 	mutex_lock(&dpm_list_mtx);
-	while (!list_empty(&dpm_active) && error == 0) {
-		struct list_head * entry = dpm_active.prev;
-		struct device * dev = to_device(entry);
+	while (!list_empty(&dpm_locked)) {
+		struct list_head *entry = dpm_locked.prev;
+		struct device *dev = to_device(entry);
 
-		get_device(dev);
+		list_del_init(&dev->power.entry);
 		mutex_unlock(&dpm_list_mtx);
-
 		error = suspend_device(dev, state);
-
-		mutex_lock(&dpm_list_mtx);
-
-		/* Check if the device got removed */
-		if (!list_empty(&dev->power.entry)) {
-			/* Move it to the dpm_off list */
-			if (!error)
-				list_move(&dev->power.entry, &dpm_off);
-		}
-		if (error)
+		if (error) {
 			printk(KERN_ERR "Could not suspend device %s: "
-				"error %d%s\n",
-				kobject_name(&dev->kobj), error,
-				error == -EAGAIN ? " (please convert to suspend_late)" : "");
-		put_device(dev);
+					"error %d%s\n",
+					kobject_name(&dev->kobj),
+					error,
+					(error == -EAGAIN ?
+					" (please convert to suspend_late)" :
+					""));
+			mutex_lock(&dpm_list_mtx);
+			if (list_empty(&dev->power.entry))
+				list_add(&dev->power.entry, &dpm_locked);
+			mutex_unlock(&dpm_list_mtx);
+			break;
+		}
+		mutex_lock(&dpm_list_mtx);
+		if (list_empty(&dev->power.entry))
+			list_add(&dev->power.entry, &dpm_off);
 	}
 	mutex_unlock(&dpm_list_mtx);
-	if (error)
-		dpm_resume();
 
-	mutex_unlock(&dpm_mtx);
 	return error;
 }
 
-EXPORT_SYMBOL_GPL(device_suspend);
-
 /**
- *	device_power_down - Shut down special devices.
- *	@state:		Power state to enter.
+ *	lock_all_devices - Acquire every device's semaphore
  *
- *	Walk the dpm_off_irq list, calling ->power_down() for each device that
- *	couldn't power down the device with interrupts enabled. When we're
- *	done, power down system devices.
+ *	Go through the dpm_active list. Carefully lock each device's
+ *	semaphore and put it in on the dpm_locked list.
  */
-
-int device_power_down(pm_message_t state)
+static void lock_all_devices(void)
 {
-	int error = 0;
-	struct device * dev;
+	mutex_lock(&dpm_list_mtx);
+	while (!list_empty(&dpm_active)) {
+		struct list_head *entry = dpm_active.next;
+		struct device *dev = to_device(entry);
 
-	while (!list_empty(&dpm_off)) {
-		struct list_head * entry = dpm_off.prev;
+		/* Required locking order is dev->sem first,
+		 * then dpm_list_mutex.  Hence this awkward code.
+		 */
+		get_device(dev);
+		mutex_unlock(&dpm_list_mtx);
+		down(&dev->sem);
+		mutex_lock(&dpm_list_mtx);
 
-		dev = to_device(entry);
-		error = suspend_device_late(dev, state);
-		if (error)
-			goto Error;
-		list_move(&dev->power.entry, &dpm_off_irq);
+		if (list_empty(entry))
+			up(&dev->sem);		/* Device was removed */
+		else
+			list_move_tail(entry, &dpm_locked);
+		put_device(dev);
 	}
+	mutex_unlock(&dpm_list_mtx);
+}
+
+/**
+ *	device_suspend - Save state and stop all devices in system.
+ *
+ *	Prevent new devices from being registered, then lock all devices
+ *	and suspend them.
+ */
+int device_suspend(pm_message_t state)
+{
+	int error;
 
-	error = sysdev_suspend(state);
- Done:
+	might_sleep();
+	down_write(&pm_sleep_rwsem);
+	lock_all_devices();
+	error = dpm_suspend(state);
+	if (error)
+		device_resume();
 	return error;
- Error:
-	printk(KERN_ERR "Could not power down device %s: "
-		"error %d\n", kobject_name(&dev->kobj), error);
-	dpm_power_up();
-	goto Done;
 }
-
-EXPORT_SYMBOL_GPL(device_power_down);
+EXPORT_SYMBOL_GPL(device_suspend);
 
 void __suspend_report_result(const char *function, void *fn, int ret)
 {
diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h
index 379da4e958e0..10c20840395e 100644
--- a/drivers/base/power/power.h
+++ b/drivers/base/power/power.h
@@ -20,6 +20,9 @@ static inline struct device *to_device(struct list_head *entry)
 
 extern void device_pm_add(struct device *);
 extern void device_pm_remove(struct device *);
+extern void device_pm_schedule_removal(struct device *);
+extern int pm_sleep_lock(void);
+extern void pm_sleep_unlock(void);
 
 #else /* CONFIG_PM_SLEEP */
 
@@ -32,6 +35,15 @@ static inline void device_pm_remove(struct device *dev)
 {
 }
 
+static inline int pm_sleep_lock(void)
+{
+	return 0;
+}
+
+static inline void pm_sleep_unlock(void)
+{
+}
+
 #endif
 
 #ifdef CONFIG_PM
diff --git a/include/linux/device.h b/include/linux/device.h
index 2e15822fe409..cf4ae5c5d193 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -521,6 +521,14 @@ extern struct device *device_create(struct class *cls, struct device *parent,
 				    dev_t devt, const char *fmt, ...)
 				    __attribute__((format(printf,4,5)));
 extern void device_destroy(struct class *cls, dev_t devt);
+#ifdef CONFIG_PM_SLEEP
+extern void destroy_suspended_device(struct class *cls, dev_t devt);
+#else /* !CONFIG_PM_SLEEP */
+static inline void destroy_suspended_device(struct class *cls, dev_t devt)
+{
+	device_destroy(cls, devt);
+}
+#endif /* !CONFIG_PM_SLEEP */
 
 /*
  * Platform "fixup" functions - allow the platform to have their say
-- 
cgit v1.2.3-59-g8ed1b


From 3514faca19a6fdc209734431c509631ea92b094e Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Tue, 16 Oct 2007 10:11:44 -0600
Subject: kobject: remove struct kobj_type from struct kset

We don't need a "default" ktype for a kset.  We should set this
explicitly every time for each kset.  This change is needed so that we
can make ksets dynamic, and cleans up one of the odd, undocumented
assumption that the kset/kobject/ktype model has.

This patch is based on a lot of help from Kay Sievers.

Nasty bug in the block code was found by Dave Young
<hidave.darkstar@gmail.com>

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/powerpc/platforms/pseries/power.c |  2 +-
 arch/s390/hypfs/inode.c                |  4 ++--
 arch/s390/kernel/ipl.c                 |  8 ++++----
 block/genhd.c                          |  5 +++--
 drivers/acpi/bus.c                     |  2 +-
 drivers/base/bus.c                     |  5 +++--
 drivers/base/class.c                   |  8 +++++---
 drivers/base/core.c                    |  5 +++--
 drivers/base/firmware.c                |  5 +++--
 drivers/base/hypervisor.c              |  2 +-
 drivers/base/sys.c                     |  3 ++-
 drivers/edac/edac_mc_sysfs.c           |  2 +-
 drivers/firmware/edd.c                 |  5 +++--
 drivers/firmware/efivars.c             |  9 +++++----
 drivers/parisc/pdc_stable.c            |  9 +++++----
 drivers/pci/hotplug/pci_hotplug_core.c |  7 ++++---
 drivers/pci/hotplug/rpadlpar_sysfs.c   |  1 -
 drivers/uio/uio.c                      |  2 +-
 fs/configfs/mount.c                    |  4 ++--
 fs/debugfs/inode.c                     |  4 ++--
 fs/dlm/lockspace.c                     |  6 ++----
 fs/ecryptfs/main.c                     |  4 ++--
 fs/fuse/inode.c                        |  8 ++++----
 fs/gfs2/locking/dlm/sysfs.c            |  6 ++----
 fs/gfs2/sys.c                          |  6 ++----
 fs/namespace.c                         |  2 +-
 fs/ocfs2/cluster/masklog.c             |  2 +-
 fs/ocfs2/cluster/sys.c                 |  2 +-
 fs/sysfs/file.c                        |  4 +---
 include/linux/kobject.h                | 15 ++++-----------
 kernel/ksysfs.c                        |  2 +-
 kernel/module.c                        |  2 +-
 kernel/params.c                        |  9 +++++----
 kernel/power/main.c                    |  2 +-
 mm/slub.c                              |  5 +++--
 security/inode.c                       |  4 ++--
 36 files changed, 84 insertions(+), 87 deletions(-)

(limited to 'arch')

diff --git a/arch/powerpc/platforms/pseries/power.c b/arch/powerpc/platforms/pseries/power.c
index 73e69023d90a..08d7a5007167 100644
--- a/arch/powerpc/platforms/pseries/power.c
+++ b/arch/powerpc/platforms/pseries/power.c
@@ -57,7 +57,7 @@ static struct subsys_attribute auto_poweron_attr = {
 };
 
 #ifndef CONFIG_PM
-decl_subsys(power,NULL,NULL);
+decl_subsys(power, NULL);
 
 static struct attribute *g[] = {
         &auto_poweron_attr.attr,
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 5245717295b8..c022ccc04d41 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -490,7 +490,7 @@ static struct super_operations hypfs_s_ops = {
 	.show_options	= hypfs_show_options,
 };
 
-static decl_subsys(s390, NULL, NULL);
+static decl_subsys(s390, NULL);
 
 static int __init hypfs_init(void)
 {
@@ -506,7 +506,7 @@ static int __init hypfs_init(void)
 			goto fail_diag;
 		}
 	}
-	kobj_set_kset_s(&s390_subsys, hypervisor_subsys);
+	s390_subsys.kobj.kset = &hypervisor_subsys;
 	rc = subsystem_register(&s390_subsys);
 	if (rc)
 		goto fail_sysfs;
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index ce0856d32500..cae793af5423 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -418,7 +418,7 @@ static struct attribute_group ipl_unknown_attr_group = {
 	.attrs = ipl_unknown_attrs,
 };
 
-static decl_subsys(ipl, NULL, NULL);
+static decl_subsys(ipl, NULL);
 
 /*
  * reipl section
@@ -590,7 +590,7 @@ static ssize_t reipl_type_store(struct kset *kset, const char *buf,
 static struct subsys_attribute reipl_type_attr =
 		__ATTR(reipl_type, 0644, reipl_type_show, reipl_type_store);
 
-static decl_subsys(reipl, NULL, NULL);
+static decl_subsys(reipl, NULL);
 
 /*
  * dump section
@@ -685,13 +685,13 @@ static ssize_t dump_type_store(struct kset *kset, const char *buf,
 static struct subsys_attribute dump_type_attr =
 		__ATTR(dump_type, 0644, dump_type_show, dump_type_store);
 
-static decl_subsys(dump, NULL, NULL);
+static decl_subsys(dump, NULL);
 
 /*
  * Shutdown actions section
  */
 
-static decl_subsys(shutdown_actions, NULL, NULL);
+static decl_subsys(shutdown_actions, NULL);
 
 /* on panic */
 
diff --git a/block/genhd.c b/block/genhd.c
index f2ac914160d1..32227b7ecd17 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -584,7 +584,7 @@ static struct kset_uevent_ops block_uevent_ops = {
 	.uevent		= block_uevent,
 };
 
-decl_subsys(block, &ktype_block, &block_uevent_ops);
+decl_subsys(block, &block_uevent_ops);
 
 /*
  * aggregate disk stat collector.  Uses the same stats that the sysfs
@@ -721,7 +721,8 @@ struct gendisk *alloc_disk_node(int minors, int node_id)
 			}
 		}
 		disk->minors = minors;
-		kobj_set_kset_s(disk,block_subsys);
+		disk->kobj.kset = &block_subsys;
+		disk->kobj.ktype = &ktype_block;
 		kobject_init(&disk->kobj);
 		rand_initialize_disk(disk);
 		INIT_WORK(&disk->async_notify,
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index f4487c38d9f2..7c172d9d7acf 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -743,7 +743,7 @@ static int __init acpi_bus_init(void)
 	return -ENODEV;
 }
 
-decl_subsys(acpi, NULL, NULL);
+decl_subsys(acpi, NULL);
 
 static int __init acpi_init(void)
 {
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 9a19b071c573..630956037e18 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -166,7 +166,7 @@ static struct kset_uevent_ops bus_uevent_ops = {
 	.filter = bus_uevent_filter,
 };
 
-static decl_subsys(bus, &bus_ktype, &bus_uevent_ops);
+static decl_subsys(bus, &bus_uevent_ops);
 
 
 #ifdef CONFIG_HOTPLUG
@@ -639,6 +639,7 @@ int bus_add_driver(struct device_driver *drv)
 	if (error)
 		goto out_put_bus;
 	drv->kobj.kset = &bus->drivers;
+	drv->kobj.ktype = &driver_ktype;
 	error = kobject_register(&drv->kobj);
 	if (error)
 		goto out_put_bus;
@@ -851,6 +852,7 @@ int bus_register(struct bus_type * bus)
 		goto out;
 
 	bus->subsys.kobj.kset = &bus_subsys;
+	bus->subsys.kobj.ktype = &bus_ktype;
 
 	retval = subsystem_register(&bus->subsys);
 	if (retval)
@@ -868,7 +870,6 @@ int bus_register(struct bus_type * bus)
 
 	kobject_set_name(&bus->drivers.kobj, "drivers");
 	bus->drivers.kobj.parent = &bus->subsys.kobj;
-	bus->drivers.ktype = &driver_ktype;
 	retval = kset_register(&bus->drivers);
 	if (retval)
 		goto bus_drivers_fail;
diff --git a/drivers/base/class.c b/drivers/base/class.c
index a863bb091e11..8ad98924cddb 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -71,7 +71,7 @@ static struct kobj_type class_ktype = {
 };
 
 /* Hotplug events for classes go to the class_obj subsys */
-static decl_subsys(class, &class_ktype, NULL);
+static decl_subsys(class, NULL);
 
 
 int class_create_file(struct class * cls, const struct class_attribute * attr)
@@ -150,6 +150,7 @@ int class_register(struct class * cls)
 		return error;
 
 	cls->subsys.kobj.kset = &class_subsys;
+	cls->subsys.kobj.ktype = &class_ktype;
 
 	error = subsystem_register(&cls->subsys);
 	if (!error) {
@@ -452,7 +453,7 @@ static struct kset_uevent_ops class_uevent_ops = {
 	.uevent =	class_uevent,
 };
 
-static decl_subsys(class_obj, &class_device_ktype, &class_uevent_ops);
+static decl_subsys(class_obj, &class_uevent_ops);
 
 
 static int class_device_add_attrs(struct class_device * cd)
@@ -537,7 +538,8 @@ static struct class_device_attribute class_uevent_attr =
 
 void class_device_initialize(struct class_device *class_dev)
 {
-	kobj_set_kset_s(class_dev, class_obj_subsys);
+	class_dev->kobj.kset = &class_obj_subsys;
+	class_dev->kobj.ktype = &class_device_ktype;
 	kobject_init(&class_dev->kobj);
 	INIT_LIST_HEAD(&class_dev->node);
 }
diff --git a/drivers/base/core.c b/drivers/base/core.c
index ce6b64c489ad..c8f2ac03d46d 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -405,7 +405,7 @@ static struct device_attribute devt_attr =
  *	devices_subsys - structure to be registered with kobject core.
  */
 
-decl_subsys(devices, &device_ktype, &device_uevent_ops);
+decl_subsys(devices, &device_uevent_ops);
 
 
 /**
@@ -525,7 +525,8 @@ static void klist_children_put(struct klist_node *n)
 
 void device_initialize(struct device *dev)
 {
-	kobj_set_kset_s(dev, devices_subsys);
+	dev->kobj.kset = &devices_subsys;
+	dev->kobj.ktype = &device_ktype;
 	kobject_init(&dev->kobj);
 	klist_init(&dev->klist_children, klist_children_get,
 		   klist_children_put);
diff --git a/drivers/base/firmware.c b/drivers/base/firmware.c
index 90c862932169..336be0450d54 100644
--- a/drivers/base/firmware.c
+++ b/drivers/base/firmware.c
@@ -15,11 +15,12 @@
 
 #include "base.h"
 
-static decl_subsys(firmware, NULL, NULL);
+static decl_subsys(firmware, NULL);
 
 int firmware_register(struct kset *s)
 {
-	kobj_set_kset_s(s, firmware_subsys);
+	s->kobj.kset = &firmware_subsys;
+	s->kobj.ktype = NULL;
 	return subsystem_register(s);
 }
 
diff --git a/drivers/base/hypervisor.c b/drivers/base/hypervisor.c
index 7080b413ddc9..14e75e9ec783 100644
--- a/drivers/base/hypervisor.c
+++ b/drivers/base/hypervisor.c
@@ -11,7 +11,7 @@
 
 #include "base.h"
 
-decl_subsys(hypervisor, NULL, NULL);
+decl_subsys(hypervisor, NULL);
 EXPORT_SYMBOL_GPL(hypervisor_subsys);
 
 int __init hypervisor_init(void)
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index ac7ff6d0c6e5..7cf19fc318da 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -131,7 +131,7 @@ EXPORT_SYMBOL_GPL(sysdev_class_remove_file);
 /*
  * declare system_subsys
  */
-static decl_subsys(system, &ktype_sysdev_class, NULL);
+static decl_subsys(system, NULL);
 
 int sysdev_class_register(struct sysdev_class * cls)
 {
@@ -139,6 +139,7 @@ int sysdev_class_register(struct sysdev_class * cls)
 		 kobject_name(&cls->kset.kobj));
 	INIT_LIST_HEAD(&cls->drivers);
 	cls->kset.kobj.parent = &system_subsys.kobj;
+	cls->kset.kobj.ktype = &ktype_sysdev_class;
 	cls->kset.kobj.kset = &system_subsys;
 	return kset_register(&cls->kset);
 }
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 3706b2bc0987..905fcd73c26e 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -744,7 +744,6 @@ static struct kobj_type ktype_mc_set_attribs = {
  */
 static struct kset mc_kset = {
 	.kobj = {.ktype = &ktype_mc_set_attribs },
-	.ktype = &ktype_mci,
 };
 
 
@@ -767,6 +766,7 @@ int edac_mc_register_sysfs_main_kobj(struct mem_ctl_info *mci)
 
 	/* this instance become part of the mc_kset */
 	kobj_mci->kset = &mc_kset;
+	kobj_mci->ktype = &ktype_mci;
 
 	/* set the name of the mc<id> object */
 	err = kobject_set_name(kobj_mci, "mc%d", mci->mc_idx);
diff --git a/drivers/firmware/edd.c b/drivers/firmware/edd.c
index 6942e065e609..fc567fad3f7c 100644
--- a/drivers/firmware/edd.c
+++ b/drivers/firmware/edd.c
@@ -631,7 +631,7 @@ static struct kobj_type edd_ktype = {
 	.default_attrs	= def_attrs,
 };
 
-static decl_subsys(edd, &edd_ktype, NULL);
+static decl_subsys(edd, NULL);
 
 
 /**
@@ -723,7 +723,8 @@ edd_device_register(struct edd_device *edev, int i)
 	edd_dev_set_info(edev, i);
 	kobject_set_name(&edev->kobj, "int13_dev%02x",
 			 0x80 + i);
-	kobj_set_kset_s(edev,edd_subsys);
+	edev->kobj.kset = &edd_subsys;
+	edev->kobj.ktype = &edd_ktype;
 	error = kobject_register(&edev->kobj);
 	if (!error)
 		edd_populate_dir(edev);
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index 858a7b95933b..06ecdb9f6013 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -583,8 +583,8 @@ static struct subsys_attribute *efi_subsys_attrs[] = {
 	NULL,	/* maybe more in the future? */
 };
 
-static decl_subsys(vars, &efivar_ktype, NULL);
-static decl_subsys(efi, NULL, NULL);
+static decl_subsys(vars, NULL);
+static decl_subsys(efi, NULL);
 
 /*
  * efivar_create_sysfs_entry()
@@ -629,7 +629,8 @@ efivar_create_sysfs_entry(unsigned long variable_name_size,
 	efi_guid_unparse(vendor_guid, short_name + strlen(short_name));
 
 	kobject_set_name(&new_efivar->kobj, "%s", short_name);
-	kobj_set_kset_s(new_efivar, vars_subsys);
+	new_efivar->kobj.kset = &vars_subsys;
+	new_efivar->kobj.ktype = &efivar_ktype;
 	i = kobject_register(&new_efivar->kobj);
 	if (i) {
 		kfree(short_name);
@@ -687,7 +688,7 @@ efivars_init(void)
 		goto out_free;
 	}
 
-	kobj_set_kset_s(&vars_subsys, efi_subsys);
+	vars_subsys.kobj.kset = &efi_subsys;
 
 	error = subsystem_register(&vars_subsys);
 
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index ebb09e98d215..1382be64cc3f 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -964,8 +964,8 @@ static struct subsys_attribute *pdcs_subsys_attrs[] = {
 	NULL,
 };
 
-static decl_subsys(paths, &ktype_pdcspath, NULL);
-static decl_subsys(stable, NULL, NULL);
+static decl_subsys(paths, NULL);
+static decl_subsys(stable, NULL);
 
 /**
  * pdcs_register_pathentries - Prepares path entries kobjects for sysfs usage.
@@ -997,7 +997,8 @@ pdcs_register_pathentries(void)
 
 		if ((err = kobject_set_name(&entry->kobj, "%s", entry->name)))
 			return err;
-		kobj_set_kset_s(entry, paths_subsys);
+		entry->kobj.kset = &paths_subsys;
+		entry->kobj.ktype = &ktype_pdcspath;
 		if ((err = kobject_register(&entry->kobj)))
 			return err;
 		
@@ -1072,7 +1073,7 @@ pdc_stable_init(void)
 			error = subsys_create_file(&stable_subsys, attr);
 	
 	/* register the paths subsys as a subsystem of stable subsys */
-	kobj_set_kset_s(&paths_subsys, stable_subsys);
+	paths_subsys.kobj.kset = &stable_subsys;
 	if ((rc = subsystem_register(&paths_subsys)))
 		goto fail_subsysreg;
 
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index 01c351c176ac..ce1cff0fdeca 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -96,7 +96,7 @@ static struct kobj_type hotplug_slot_ktype = {
 	.release = &hotplug_slot_release,
 };
 
-decl_subsys_name(pci_hotplug_slots, slots, &hotplug_slot_ktype, NULL);
+decl_subsys_name(pci_hotplug_slots, slots, NULL);
 
 /* these strings match up with the values in pci_bus_speed */
 static char *pci_bus_speed_strings[] = {
@@ -633,7 +633,8 @@ int pci_hp_register (struct hotplug_slot *slot)
 	}
 
 	kobject_set_name(&slot->kobj, "%s", slot->name);
-	kobj_set_kset_s(slot, pci_hotplug_slots_subsys);
+	slot->kobj.kset = &pci_hotplug_slots_subsys;
+	slot->kobj.ktype = &hotplug_slot_ktype;
 
 	/* this can fail if we have already registered a slot with the same name */
 	if (kobject_register(&slot->kobj)) {
@@ -701,7 +702,7 @@ static int __init pci_hotplug_init (void)
 {
 	int result;
 
-	kobj_set_kset_s(&pci_hotplug_slots_subsys, pci_bus_type.subsys);
+	pci_hotplug_slots_subsys.kobj.kset = &pci_bus_type.subsys;
 	result = subsystem_register(&pci_hotplug_slots_subsys);
 	if (result) {
 		err("Register subsys with error %d\n", result);
diff --git a/drivers/pci/hotplug/rpadlpar_sysfs.c b/drivers/pci/hotplug/rpadlpar_sysfs.c
index a080fedf0332..76090937c758 100644
--- a/drivers/pci/hotplug/rpadlpar_sysfs.c
+++ b/drivers/pci/hotplug/rpadlpar_sysfs.c
@@ -131,7 +131,6 @@ struct kobj_type ktype_dlpar_io = {
 struct kset dlpar_io_kset = {
 	.kobj = {.ktype = &ktype_dlpar_io,
 		 .parent = &pci_hotplug_slots_subsys.kobj},
-	.ktype = &ktype_dlpar_io,
 };
 
 int dlpar_sysfs_init(void)
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 865f32b63b5c..606aae7490ab 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -160,7 +160,7 @@ static int uio_dev_add_attributes(struct uio_device *idev)
 		if (!map_found) {
 			map_found = 1;
 			kobject_set_name(&idev->map_attr_kset.kobj,"maps");
-			idev->map_attr_kset.ktype = &map_attr_type;
+			idev->map_attr_kset.kobj.ktype = &map_attr_type;
 			idev->map_attr_kset.kobj.parent = &idev->dev->kobj;
 			ret = kset_register(&idev->map_attr_kset);
 			if (ret)
diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c
index 3bf0278ea843..374ddbd6648d 100644
--- a/fs/configfs/mount.c
+++ b/fs/configfs/mount.c
@@ -128,7 +128,7 @@ void configfs_release_fs(void)
 }
 
 
-static decl_subsys(config, NULL, NULL);
+static decl_subsys(config, NULL);
 
 static int __init configfs_init(void)
 {
@@ -140,7 +140,7 @@ static int __init configfs_init(void)
 	if (!configfs_dir_cachep)
 		goto out;
 
-	kobj_set_kset_s(&config_subsys, kernel_subsys);
+	config_subsys.kobj.kset = &kernel_subsys;
 	err = subsystem_register(&config_subsys);
 	if (err) {
 		kmem_cache_destroy(configfs_dir_cachep);
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 6a713b33992f..f7f13516fc1a 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -426,13 +426,13 @@ exit:
 }
 EXPORT_SYMBOL_GPL(debugfs_rename);
 
-static decl_subsys(debug, NULL, NULL);
+static decl_subsys(debug, NULL);
 
 static int __init debugfs_init(void)
 {
 	int retval;
 
-	kobj_set_kset_s(&debug_subsys, kernel_subsys);
+	debug_subsys.kobj.kset = &kernel_subsys;
 	retval = subsystem_register(&debug_subsys);
 	if (retval)
 		return retval;
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index 6353a8384520..18e4a17b9bee 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -166,9 +166,7 @@ static struct kobj_type dlm_ktype = {
 	.release       = lockspace_kobj_release,
 };
 
-static struct kset dlm_kset = {
-	.ktype  = &dlm_ktype,
-};
+static struct kset dlm_kset;
 
 static int kobject_setup(struct dlm_ls *ls)
 {
@@ -228,7 +226,7 @@ int dlm_lockspace_init(void)
 	spin_lock_init(&lslist_lock);
 
 	kobject_set_name(&dlm_kset.kobj, "dlm");
-	kobj_set_kset_s(&dlm_kset, kernel_subsys);
+	dlm_kset.kobj.kset = &kernel_subsys;
 	error = kset_register(&dlm_kset);
 	if (error)
 		printk("dlm_lockspace_init: cannot register kset %d\n", error);
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index f9f32472c505..fe2f44fa17cc 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -734,7 +734,7 @@ static int ecryptfs_init_kmem_caches(void)
 	return 0;
 }
 
-static decl_subsys(ecryptfs, NULL, NULL);
+static decl_subsys(ecryptfs, NULL);
 
 static ssize_t version_show(struct kset *kset, char *buff)
 {
@@ -798,6 +798,7 @@ static int do_sysfs_registration(void)
 {
 	int rc;
 
+	ecryptfs_subsys.kobj.kset = &fs_subsys;
 	rc = subsystem_register(&ecryptfs_subsys);
 	if (rc) {
 		printk(KERN_ERR
@@ -845,7 +846,6 @@ static int __init ecryptfs_init(void)
 		printk(KERN_ERR "Failed to register filesystem\n");
 		goto out_free_kmem_caches;
 	}
-	kobj_set_kset_s(&ecryptfs_subsys, fs_subsys);
 	rc = do_sysfs_registration();
 	if (rc) {
 		printk(KERN_ERR "sysfs registration failed\n");
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 84f9f7dfdf5b..f5e4182c482e 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -744,8 +744,8 @@ static inline void unregister_fuseblk(void)
 }
 #endif
 
-static decl_subsys(fuse, NULL, NULL);
-static decl_subsys(connections, NULL, NULL);
+static decl_subsys(fuse, NULL);
+static decl_subsys(connections, NULL);
 
 static void fuse_inode_init_once(struct kmem_cache *cachep, void *foo)
 {
@@ -795,12 +795,12 @@ static int fuse_sysfs_init(void)
 {
 	int err;
 
-	kobj_set_kset_s(&fuse_subsys, fs_subsys);
+	fuse_subsys.kobj.kset = &fs_subsys;
 	err = subsystem_register(&fuse_subsys);
 	if (err)
 		goto out_err;
 
-	kobj_set_kset_s(&connections_subsys, fuse_subsys);
+	connections_subsys.kobj.kset = &fuse_subsys;
 	err = subsystem_register(&connections_subsys);
 	if (err)
 		goto out_fuse_unregister;
diff --git a/fs/gfs2/locking/dlm/sysfs.c b/fs/gfs2/locking/dlm/sysfs.c
index ae9e6a25fe2b..93e66b22757f 100644
--- a/fs/gfs2/locking/dlm/sysfs.c
+++ b/fs/gfs2/locking/dlm/sysfs.c
@@ -189,9 +189,7 @@ static struct kobj_type gdlm_ktype = {
 	.sysfs_ops     = &gdlm_attr_ops,
 };
 
-static struct kset gdlm_kset = {
-	.ktype  = &gdlm_ktype,
-};
+static struct kset gdlm_kset;
 
 int gdlm_kobject_setup(struct gdlm_ls *ls, struct kobject *fskobj)
 {
@@ -224,7 +222,7 @@ int gdlm_sysfs_init(void)
 	int error;
 
 	kobject_set_name(&gdlm_kset.kobj, "lock_dlm");
-	kobj_set_kset_s(&gdlm_kset, kernel_subsys);
+	gdlm_kset.kobj.kset = &kernel_subsys;
 	error = kset_register(&gdlm_kset);
 	if (error)
 		printk("lock_dlm: cannot register kset %d\n", error);
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index 06e0b7768d97..d7fa54443f0c 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -221,9 +221,7 @@ static struct kobj_type gfs2_ktype = {
 	.sysfs_ops     = &gfs2_attr_ops,
 };
 
-static struct kset gfs2_kset = {
-	.ktype  = &gfs2_ktype,
-};
+static struct kset gfs2_kset;
 
 /*
  * display struct lm_lockstruct fields
@@ -551,7 +549,7 @@ int gfs2_sys_init(void)
 	gfs2_sys_margs = NULL;
 	spin_lock_init(&gfs2_sys_margs_lock);
 	kobject_set_name(&gfs2_kset.kobj, "gfs2");
-	kobj_set_kset_s(&gfs2_kset, fs_subsys);
+	gfs2_kset.kobj.kset = &fs_subsys;
 	return kset_register(&gfs2_kset);
 }
 
diff --git a/fs/namespace.c b/fs/namespace.c
index 06083885b21e..a4a3f70e7e26 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -41,7 +41,7 @@ static struct kmem_cache *mnt_cache __read_mostly;
 static struct rw_semaphore namespace_sem;
 
 /* /sys/fs */
-decl_subsys(fs, NULL, NULL);
+decl_subsys(fs, NULL);
 EXPORT_SYMBOL_GPL(fs_subsys);
 
 static inline unsigned long hash(struct vfsmount *mnt, struct dentry *dentry)
diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c
index a4882c8df945..dead319932b3 100644
--- a/fs/ocfs2/cluster/masklog.c
+++ b/fs/ocfs2/cluster/masklog.c
@@ -157,7 +157,7 @@ int mlog_sys_init(struct kset *o2cb_subsys)
 	mlog_attr_ptrs[i] = NULL;
 
 	kobject_set_name(&mlog_kset.kobj, "logmask");
-	kobj_set_kset_s(&mlog_kset, *o2cb_subsys);
+	mlog_kset.kobj.kset = o2cb_subsys;
 	return kset_register(&mlog_kset);
 }
 
diff --git a/fs/ocfs2/cluster/sys.c b/fs/ocfs2/cluster/sys.c
index 64f6f378fd09..880d0138bb0a 100644
--- a/fs/ocfs2/cluster/sys.c
+++ b/fs/ocfs2/cluster/sys.c
@@ -72,7 +72,7 @@ static struct kobj_type o2cb_subsys_type = {
 };
 
 /* gives us o2cb_subsys */
-static decl_subsys(o2cb, NULL, NULL);
+static decl_subsys(o2cb, NULL);
 
 static ssize_t
 o2cb_show(struct kobject * kobj, struct attribute * attr, char * buffer)
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 09a0611b3364..387a63662793 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -365,9 +365,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 	/* if the kobject has no ktype, then we assume that it is a subsystem
 	 * itself, and use ops for it.
 	 */
-	if (kobj->kset && kobj->kset->ktype)
-		ops = kobj->kset->ktype->sysfs_ops;
-	else if (kobj->ktype)
+	if (kobj->ktype)
 		ops = kobj->ktype->sysfs_ops;
 	else
 		ops = &subsys_sysfs_ops;
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index e2b8c3dae425..5031565ab30d 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -135,7 +135,6 @@ struct kset_uevent_ops {
  * define the attribute callbacks and other common events that happen to
  * a kobject.
  *
- * @ktype: the struct kobj_type for this specific kset
  * @list: the list of all kobjects for this kset
  * @list_lock: a lock for iterating over the kobjects
  * @kobj: the embedded kobject for this kset (recursion, isn't it fun...)
@@ -145,7 +144,6 @@ struct kset_uevent_ops {
  * desired.
  */
 struct kset {
-	struct kobj_type	*ktype;
 	struct list_head	list;
 	spinlock_t		list_lock;
 	struct kobject		kobj;
@@ -173,12 +171,9 @@ static inline void kset_put(struct kset * k)
 	kobject_put(&k->kobj);
 }
 
-static inline struct kobj_type * get_ktype(struct kobject * k)
+static inline struct kobj_type *get_ktype(struct kobject *kobj)
 {
-	if (k->kset && k->kset->ktype)
-		return k->kset->ktype;
-	else 
-		return k->ktype;
+	return kobj->ktype;
 }
 
 extern struct kobject * kset_find_obj(struct kset *, const char *);
@@ -191,16 +186,14 @@ extern struct kobject * kset_find_obj(struct kset *, const char *);
 #define set_kset_name(str)	.kset = { .kobj = { .k_name = str } }
 
 
-#define decl_subsys(_name,_type,_uevent_ops) \
+#define decl_subsys(_name,_uevent_ops) \
 struct kset _name##_subsys = { \
 	.kobj = { .k_name = __stringify(_name) }, \
-	.ktype = _type, \
 	.uevent_ops =_uevent_ops, \
 }
-#define decl_subsys_name(_varname,_name,_type,_uevent_ops) \
+#define decl_subsys_name(_varname,_name,_uevent_ops) \
 struct kset _varname##_subsys = { \
 	.kobj = { .k_name = __stringify(_name) }, \
-	.ktype = _type, \
 	.uevent_ops =_uevent_ops, \
 }
 
diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
index 65daa5373ca6..094e2bc101a8 100644
--- a/kernel/ksysfs.c
+++ b/kernel/ksysfs.c
@@ -94,7 +94,7 @@ static struct bin_attribute notes_attr = {
 	.read = &notes_read,
 };
 
-decl_subsys(kernel, NULL, NULL);
+decl_subsys(kernel, NULL);
 EXPORT_SYMBOL_GPL(kernel_subsys);
 
 static struct attribute * kernel_attrs[] = {
diff --git a/kernel/module.c b/kernel/module.c
index c2e3e2e98801..68df79738b3b 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1223,7 +1223,7 @@ int mod_sysfs_init(struct module *mod)
 	err = kobject_set_name(&mod->mkobj.kobj, "%s", mod->name);
 	if (err)
 		goto out;
-	kobj_set_kset_s(&mod->mkobj, module_subsys);
+	mod->mkobj.kobj.kset = &module_subsys;
 	mod->mkobj.mod = mod;
 
 	kobject_init(&mod->mkobj.kobj);
diff --git a/kernel/params.c b/kernel/params.c
index 7686417ee00e..9f051824097d 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -30,6 +30,8 @@
 #define DEBUGP(fmt, a...)
 #endif
 
+static struct kobj_type module_ktype;
+
 static inline char dash2underscore(char c)
 {
 	if (c == '-')
@@ -560,7 +562,8 @@ static void __init kernel_param_sysfs_setup(const char *name,
 	BUG_ON(!mk);
 
 	mk->mod = THIS_MODULE;
-	kobj_set_kset_s(mk, module_subsys);
+	mk->kobj.kset = &module_subsys;
+	mk->kobj.ktype = &module_ktype;
 	kobject_set_name(&mk->kobj, name);
 	kobject_init(&mk->kobj);
 	ret = kobject_add(&mk->kobj);
@@ -679,8 +682,6 @@ static struct sysfs_ops module_sysfs_ops = {
 	.store = module_attr_store,
 };
 
-static struct kobj_type module_ktype;
-
 static int uevent_filter(struct kset *kset, struct kobject *kobj)
 {
 	struct kobj_type *ktype = get_ktype(kobj);
@@ -694,7 +695,7 @@ static struct kset_uevent_ops module_uevent_ops = {
 	.filter = uevent_filter,
 };
 
-decl_subsys(module, &module_ktype, &module_uevent_ops);
+decl_subsys(module, &module_uevent_ops);
 int module_sysfs_initialized;
 
 static void module_release(struct kobject *kobj)
diff --git a/kernel/power/main.c b/kernel/power/main.c
index f71c9504a5c5..1ef31c91ce0e 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -276,7 +276,7 @@ EXPORT_SYMBOL(pm_suspend);
 
 #endif /* CONFIG_SUSPEND */
 
-decl_subsys(power,NULL,NULL);
+decl_subsys(power, NULL);
 
 
 /**
diff --git a/mm/slub.c b/mm/slub.c
index 474945ecd89d..40bdf41035e5 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3962,7 +3962,7 @@ static struct kset_uevent_ops slab_uevent_ops = {
 	.filter = uevent_filter,
 };
 
-static decl_subsys(slab, &slab_ktype, &slab_uevent_ops);
+static decl_subsys(slab, &slab_uevent_ops);
 
 #define ID_STR_LENGTH 64
 
@@ -4025,8 +4025,9 @@ static int sysfs_slab_add(struct kmem_cache *s)
 		name = create_unique_id(s);
 	}
 
-	kobj_set_kset_s(s, slab_subsys);
 	kobject_set_name(&s->kobj, name);
+	s->kobj.kset = &slab_subsys;
+	s->kobj.ktype = &slab_ktype;
 	kobject_init(&s->kobj);
 	err = kobject_add(&s->kobj);
 	if (err)
diff --git a/security/inode.c b/security/inode.c
index b28a8acae34d..9e42f5f705b2 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -315,13 +315,13 @@ void securityfs_remove(struct dentry *dentry)
 }
 EXPORT_SYMBOL_GPL(securityfs_remove);
 
-static decl_subsys(security, NULL, NULL);
+static decl_subsys(security, NULL);
 
 static int __init securityfs_init(void)
 {
 	int retval;
 
-	kobj_set_kset_s(&security_subsys, kernel_subsys);
+	security_subsys.kobj.kset = &kernel_subsys;
 	retval = subsystem_register(&security_subsys);
 	if (retval)
 		return retval;
-- 
cgit v1.2.3-59-g8ed1b


From 2d72fc00a1fb055e6127ccd30cac3f0eafaa98d0 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Thu, 1 Nov 2007 09:29:06 -0600
Subject: kobject: convert /sys/hypervisor to use kobject_create

We don't need a kset here, a simple kobject will do just fine, so
dynamically create the kobject and use it.

We also rename hypervisor_subsys to hypervisor_kset to catch all users
of the variable.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/s390/hypfs/inode.c   |  2 +-
 drivers/base/hypervisor.c | 12 ++++++++----
 include/linux/kobject.h   |  4 ++--
 3 files changed, 11 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index c022ccc04d41..b0ad479e7487 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -506,7 +506,7 @@ static int __init hypfs_init(void)
 			goto fail_diag;
 		}
 	}
-	s390_subsys.kobj.kset = &hypervisor_subsys;
+	s390_subsys.kobj.parent = hypervisor_kobj;
 	rc = subsystem_register(&s390_subsys);
 	if (rc)
 		goto fail_sysfs;
diff --git a/drivers/base/hypervisor.c b/drivers/base/hypervisor.c
index 14e75e9ec783..6428cba3aadd 100644
--- a/drivers/base/hypervisor.c
+++ b/drivers/base/hypervisor.c
@@ -2,19 +2,23 @@
  * hypervisor.c - /sys/hypervisor subsystem.
  *
  * Copyright (C) IBM Corp. 2006
+ * Copyright (C) 2007 Greg Kroah-Hartman <gregkh@suse.de>
+ * Copyright (C) 2007 Novell Inc.
  *
  * This file is released under the GPLv2
  */
 
 #include <linux/kobject.h>
 #include <linux/device.h>
-
 #include "base.h"
 
-decl_subsys(hypervisor, NULL);
-EXPORT_SYMBOL_GPL(hypervisor_subsys);
+struct kobject *hypervisor_kobj;
+EXPORT_SYMBOL_GPL(hypervisor_kobj);
 
 int __init hypervisor_init(void)
 {
-	return subsystem_register(&hypervisor_subsys);
+	hypervisor_kobj = kobject_create_and_add("hypervisor", NULL);
+	if (!hypervisor_kobj)
+		return -ENOMEM;
+	return 0;
 }
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index bd741e86c11e..f2483f6fd639 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -196,8 +196,8 @@ struct kset _name##_subsys = { \
 
 /* The global /sys/kernel/ kset for people to chain off of */
 extern struct kset *kernel_kset;
-/* The global /sys/hypervisor/ subsystem  */
-extern struct kset hypervisor_subsys;
+/* The global /sys/hypervisor/ kobject for people to chain off of */
+extern struct kobject *hypervisor_kobj;
 
 extern int __must_check subsystem_register(struct kset *);
 extern void subsystem_unregister(struct kset *);
-- 
cgit v1.2.3-59-g8ed1b


From 9b477705360c16198d7a4bd73d199f5a957585b0 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Thu, 1 Nov 2007 09:29:06 -0600
Subject: kobject: convert s390 hypervisor to use kobject_create

We don't need a kset here, a simple kobject will do just fine, so
dynamically create the kobject and use it.

Thanks to Cornelia for the build fix.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Michael Holzheu <holzheu@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/s390/hypfs/inode.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index b0ad479e7487..631a6109f642 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -490,7 +490,7 @@ static struct super_operations hypfs_s_ops = {
 	.show_options	= hypfs_show_options,
 };
 
-static decl_subsys(s390, NULL);
+static struct kobject *s390_kobj;
 
 static int __init hypfs_init(void)
 {
@@ -506,17 +506,18 @@ static int __init hypfs_init(void)
 			goto fail_diag;
 		}
 	}
-	s390_subsys.kobj.parent = hypervisor_kobj;
-	rc = subsystem_register(&s390_subsys);
-	if (rc)
+	s390_kobj = kobject_create_and_add("s390", hypervisor_kobj);
+	if (!s390_kobj) {
+		rc = -ENOMEM;;
 		goto fail_sysfs;
+	}
 	rc = register_filesystem(&hypfs_type);
 	if (rc)
 		goto fail_filesystem;
 	return 0;
 
 fail_filesystem:
-	subsystem_unregister(&s390_subsys);
+	kobject_unregister(s390_kobj);
 fail_sysfs:
 	if (!MACHINE_IS_VM)
 		hypfs_diag_exit();
@@ -530,7 +531,7 @@ static void __exit hypfs_exit(void)
 	if (!MACHINE_IS_VM)
 		hypfs_diag_exit();
 	unregister_filesystem(&hypfs_type);
-	subsystem_unregister(&s390_subsys);
+	kobject_unregister(s390_kobj);
 }
 
 module_init(hypfs_init)
-- 
cgit v1.2.3-59-g8ed1b


From 039a5dcd2fc45188a2d522df630db4f7ef903a0f Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Thu, 1 Nov 2007 10:39:50 -0700
Subject: kset: convert /sys/power to use kset_create

Dynamically create the kset instead of declaring it statically.  We also
rename power_subsys to power_kset to catch all users of the variable and
we properly export it so that people don't have to guess that it really
is present in the system.

The pseries code is wierd, why is it createing /sys/power if CONFIG_PM
is disabled?  Oh well, stupid big boxes ignoring config options...

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/arm/mach-omap1/pm.c               |  3 +--
 arch/powerpc/platforms/pseries/power.c | 14 ++++++--------
 include/linux/kobject.h                |  2 ++
 kernel/power/disk.c                    |  2 +-
 kernel/power/main.c                    | 11 +++++------
 kernel/power/power.h                   |  2 --
 6 files changed, 15 insertions(+), 19 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index 3bf01e28df33..402113c72981 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -97,7 +97,6 @@ static struct subsys_attribute sleep_while_idle_attr = {
 	.store  = omap_pm_sleep_while_idle_store,
 };
 
-extern struct kset power_subsys;
 static void (*omap_sram_idle)(void) = NULL;
 static void (*omap_sram_suspend)(unsigned long r0, unsigned long r1) = NULL;
 
@@ -726,7 +725,7 @@ static int __init omap_pm_init(void)
 	omap_pm_init_proc();
 #endif
 
-	error = subsys_create_file(&power_subsys, &sleep_while_idle_attr);
+	error = subsys_create_file(power_kset, &sleep_while_idle_attr);
 	if (error)
 		printk(KERN_ERR "subsys_create_file failed: %d\n", error);
 
diff --git a/arch/powerpc/platforms/pseries/power.c b/arch/powerpc/platforms/pseries/power.c
index 08d7a5007167..c36febe7ce7d 100644
--- a/arch/powerpc/platforms/pseries/power.c
+++ b/arch/powerpc/platforms/pseries/power.c
@@ -57,7 +57,7 @@ static struct subsys_attribute auto_poweron_attr = {
 };
 
 #ifndef CONFIG_PM
-decl_subsys(power, NULL);
+struct kset *power_kset;
 
 static struct attribute *g[] = {
         &auto_poweron_attr.attr,
@@ -70,18 +70,16 @@ static struct attribute_group attr_group = {
 
 static int __init pm_init(void)
 {
-        int error = subsystem_register(&power_subsys);
-        if (!error)
-                error = sysfs_create_group(&power_subsys.kobj, &attr_group);
-        return error;
+	power_kset = kset_create_and_add("power", NULL, NULL);
+	if (!power_kset)
+		return -ENOMEM;
+	return sysfs_create_group(&power_kset->kobj, &attr_group);
 }
 core_initcall(pm_init);
 #else
-extern struct kset power_subsys;
-
 static int __init apo_pm_init(void)
 {
-	return (subsys_create_file(&power_subsys, &auto_poweron_attr));
+	return (subsys_create_file(power_kset, &auto_poweron_attr));
 }
 __initcall(apo_pm_init);
 #endif
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index f2483f6fd639..a6dd669cda9d 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -198,6 +198,8 @@ struct kset _name##_subsys = { \
 extern struct kset *kernel_kset;
 /* The global /sys/hypervisor/ kobject for people to chain off of */
 extern struct kobject *hypervisor_kobj;
+/* The global /sys/power/ kset for people to chain off of */
+extern struct kset *power_kset;
 
 extern int __must_check subsystem_register(struct kset *);
 extern void subsystem_unregister(struct kset *);
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 05b64790fe83..c3f0e61365dd 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -708,7 +708,7 @@ static struct attribute_group attr_group = {
 
 static int __init pm_disk_init(void)
 {
-	return sysfs_create_group(&power_subsys.kobj, &attr_group);
+	return sysfs_create_group(&power_kset->kobj, &attr_group);
 }
 
 core_initcall(pm_disk_init);
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 1ef31c91ce0e..dce2d76d66de 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -276,8 +276,7 @@ EXPORT_SYMBOL(pm_suspend);
 
 #endif /* CONFIG_SUSPEND */
 
-decl_subsys(power, NULL);
-
+struct kset *power_kset;
 
 /**
  *	state - control system power state.
@@ -386,10 +385,10 @@ static struct attribute_group attr_group = {
 
 static int __init pm_init(void)
 {
-	int error = subsystem_register(&power_subsys);
-	if (!error)
-		error = sysfs_create_group(&power_subsys.kobj,&attr_group);
-	return error;
+	power_kset = kset_create_and_add("power", NULL, NULL);
+	if (!power_kset)
+		return -ENOMEM;
+	return sysfs_create_group(&power_kset->kobj, &attr_group);
 }
 
 core_initcall(pm_init);
diff --git a/kernel/power/power.h b/kernel/power/power.h
index 195dc4611764..1083e6b188ab 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -63,8 +63,6 @@ static struct subsys_attribute _name##_attr = {	\
 	.store	= _name##_store,		\
 }
 
-extern struct kset power_subsys;
-
 /* Preferred image size in bytes (default 500 MB) */
 extern unsigned long image_size;
 extern int in_suspend;
-- 
cgit v1.2.3-59-g8ed1b


From 851324c6ffdf94976b4a925d0684a4faa993b9ca Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Fri, 2 Nov 2007 13:20:40 -0700
Subject: kobject: convert arm/mach-omap1/pm.c to kobj_attr interface

This makes the code a bit simpler and and gets us one step closer to
deleting the deprecated subsys_attr code.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Cliff Brake <cbrake@accelent.com>
Cc: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/arm/mach-omap1/pm.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index 402113c72981..63edafb59490 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -69,14 +69,14 @@ static unsigned int mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_SIZE];
 
 static unsigned short enable_dyn_sleep = 1;
 
-static ssize_t omap_pm_sleep_while_idle_show(struct kset *kset, char *buf)
+static ssize_t idle_show(struct kobject *kobj, struct kobj_attribute *attr,
+			 char *buf)
 {
 	return sprintf(buf, "%hu\n", enable_dyn_sleep);
 }
 
-static ssize_t omap_pm_sleep_while_idle_store(struct kset *kset,
-					      const char * buf,
-					      size_t n)
+static ssize_t idle_store(struct kobject *kobj, struct kobj_attribute *attr,
+			  const char * buf, size_t n)
 {
 	unsigned short value;
 	if (sscanf(buf, "%hu", &value) != 1 ||
@@ -88,14 +88,8 @@ static ssize_t omap_pm_sleep_while_idle_store(struct kset *kset,
 	return n;
 }
 
-static struct subsys_attribute sleep_while_idle_attr = {
-	.attr   = {
-		.name = __stringify(sleep_while_idle),
-		.mode = 0644,
-	},
-	.show   = omap_pm_sleep_while_idle_show,
-	.store  = omap_pm_sleep_while_idle_store,
-};
+static struct kobj_attribute sleep_while_idle_attr =
+	__ATTR(sleep_while_idle, 0644, idle_show, idle_store);
 
 static void (*omap_sram_idle)(void) = NULL;
 static void (*omap_sram_suspend)(unsigned long r0, unsigned long r1) = NULL;
@@ -725,9 +719,9 @@ static int __init omap_pm_init(void)
 	omap_pm_init_proc();
 #endif
 
-	error = subsys_create_file(power_kset, &sleep_while_idle_attr);
+	error = sysfs_create_file(&power_kset->kobj, &sleep_while_idle_attr);
 	if (error)
-		printk(KERN_ERR "subsys_create_file failed: %d\n", error);
+		printk(KERN_ERR "sysfs_create_file failed: %d\n", error);
 
 	if (cpu_is_omap16xx()) {
 		/* configure LOW_PWR pin */
-- 
cgit v1.2.3-59-g8ed1b


From 79393fc46ede43451a500a132e5de9856f5a4c83 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Fri, 2 Nov 2007 13:20:40 -0700
Subject: kobject: convert pseries/power.c to kobj_attr interface

This makes the code a bit simpler and and gets us one step closer to
deleting the deprecated subsys_attr code.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/powerpc/platforms/pseries/power.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/powerpc/platforms/pseries/power.c b/arch/powerpc/platforms/pseries/power.c
index c36febe7ce7d..90706cf840fd 100644
--- a/arch/powerpc/platforms/pseries/power.c
+++ b/arch/powerpc/platforms/pseries/power.c
@@ -28,13 +28,15 @@
 
 unsigned long rtas_poweron_auto; /* default and normal state is 0 */
 
-static ssize_t auto_poweron_show(struct kset *kset, char *buf)
+static ssize_t auto_poweron_show(struct kobject *kobj,
+				 struct kobj_attribute *attr, char *buf)
 {
         return sprintf(buf, "%lu\n", rtas_poweron_auto);
 }
 
-static ssize_t
-auto_poweron_store(struct kset *kset, const char *buf, size_t n)
+static ssize_t auto_poweron_store(struct kobject *kobj,
+				  struct kobj_attribute *attr,
+				  const char *buf, size_t n)
 {
 	int ret;
 	unsigned long ups_restart;
@@ -47,14 +49,8 @@ auto_poweron_store(struct kset *kset, const char *buf, size_t n)
 	return -EINVAL;
 }
 
-static struct subsys_attribute auto_poweron_attr = {
-        .attr   = {
-                .name = __stringify(auto_poweron),
-                .mode = 0644,
-        },
-        .show   = auto_poweron_show,
-        .store  = auto_poweron_store,
-};
+static struct kobj_attribute auto_poweron_attr =
+	__ATTR(auto_poweron, 0644, auto_poweron_show, auto_poweron_store);
 
 #ifndef CONFIG_PM
 struct kset *power_kset;
@@ -79,7 +75,7 @@ core_initcall(pm_init);
 #else
 static int __init apo_pm_init(void)
 {
-	return (subsys_create_file(power_kset, &auto_poweron_attr));
+	return (sysfs_create_file(&power_kset->kobj, &auto_poweron_attr));
 }
 __initcall(apo_pm_init);
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 9b949165bd4a86c536cb92a9ce4367effbde9079 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Fri, 2 Nov 2007 17:17:00 -0400
Subject: kobject: convert s390 ipl.c to kobj_attr interface

This makes the code a bit simpler and and gets us one step closer to
deleting the deprecated subsys_attr code.

NOTE, this needs the next patch in the series in order to work properly.
This will build, but the sysfs files will not properly operate.

Thanks to Cornelia for the build fix on this patch.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Michael Holzheu <holzheu@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Volker Sameske <sameske@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/s390/kernel/ipl.c | 80 ++++++++++++++++++++++++++++++--------------------
 1 file changed, 48 insertions(+), 32 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index cae793af5423..50be9d063d68 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -162,22 +162,25 @@ EXPORT_SYMBOL_GPL(diag308);
 /* SYSFS */
 
 #define DEFINE_IPL_ATTR_RO(_prefix, _name, _format, _value)		\
-static ssize_t sys_##_prefix##_##_name##_show(struct kset *kset,	\
+static ssize_t sys_##_prefix##_##_name##_show(struct kobject *kobj,	\
+		struct kobj_attribute *attr,				\
 		char *page)						\
 {									\
 	return sprintf(page, _format, _value);				\
 }									\
-static struct subsys_attribute sys_##_prefix##_##_name##_attr =		\
+static struct kobj_attribute sys_##_prefix##_##_name##_attr =		\
 	__ATTR(_name, S_IRUGO, sys_##_prefix##_##_name##_show, NULL);
 
 #define DEFINE_IPL_ATTR_RW(_prefix, _name, _fmt_out, _fmt_in, _value)	\
-static ssize_t sys_##_prefix##_##_name##_show(struct kset *kset,	\
+static ssize_t sys_##_prefix##_##_name##_show(struct kobject *kobj,	\
+		struct kobj_attribute *attr,				\
 		char *page)						\
 {									\
 	return sprintf(page, _fmt_out,					\
 			(unsigned long long) _value);			\
 }									\
-static ssize_t sys_##_prefix##_##_name##_store(struct kset *kset,	\
+static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj,	\
+		struct kobj_attribute *attr,				\
 		const char *buf, size_t len)				\
 {									\
 	unsigned long long value;					\
@@ -186,25 +189,27 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kset *kset,	\
 	_value = value;							\
 	return len;							\
 }									\
-static struct subsys_attribute sys_##_prefix##_##_name##_attr =		\
+static struct kobj_attribute sys_##_prefix##_##_name##_attr =		\
 	__ATTR(_name,(S_IRUGO | S_IWUSR),				\
 			sys_##_prefix##_##_name##_show,			\
 			sys_##_prefix##_##_name##_store);
 
 #define DEFINE_IPL_ATTR_STR_RW(_prefix, _name, _fmt_out, _fmt_in, _value)\
-static ssize_t sys_##_prefix##_##_name##_show(struct kset *kset,	\
+static ssize_t sys_##_prefix##_##_name##_show(struct kobject *kobj,	\
+		struct kobj_attribute *attr,				\
 		char *page)						\
 {									\
 	return sprintf(page, _fmt_out, _value);				\
 }									\
-static ssize_t sys_##_prefix##_##_name##_store(struct kset *kset,	\
+static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj,	\
+		struct kobj_attribute *attr,				\
 		const char *buf, size_t len)				\
 {									\
 	if (sscanf(buf, _fmt_in, _value) != 1)				\
 		return -EINVAL;						\
 	return len;							\
 }									\
-static struct subsys_attribute sys_##_prefix##_##_name##_attr =		\
+static struct kobj_attribute sys_##_prefix##_##_name##_attr =		\
 	__ATTR(_name,(S_IRUGO | S_IWUSR),				\
 			sys_##_prefix##_##_name##_show,			\
 			sys_##_prefix##_##_name##_store);
@@ -270,14 +275,16 @@ void __init setup_ipl_info(void)
 struct ipl_info ipl_info;
 EXPORT_SYMBOL_GPL(ipl_info);
 
-static ssize_t ipl_type_show(struct kset *kset, char *page)
+static ssize_t ipl_type_show(struct kobject *kobj, struct kobj_attribute *attr,
+			     char *page)
 {
 	return sprintf(page, "%s\n", ipl_type_str(ipl_info.type));
 }
 
-static struct subsys_attribute sys_ipl_type_attr = __ATTR_RO(ipl_type);
+static struct kobj_attribute sys_ipl_type_attr = __ATTR_RO(ipl_type);
 
-static ssize_t sys_ipl_device_show(struct kset *kset, char *page)
+static ssize_t sys_ipl_device_show(struct kobject *kobj,
+				   struct kobj_attribute *attr, char *page)
 {
 	struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START;
 
@@ -292,7 +299,7 @@ static ssize_t sys_ipl_device_show(struct kset *kset, char *page)
 	}
 }
 
-static struct subsys_attribute sys_ipl_device_attr =
+static struct kobj_attribute sys_ipl_device_attr =
 	__ATTR(device, S_IRUGO, sys_ipl_device_show, NULL);
 
 static ssize_t ipl_parameter_read(struct kobject *kobj, struct bin_attribute *attr,
@@ -367,7 +374,8 @@ static struct attribute_group ipl_fcp_attr_group = {
 
 /* CCW ipl device attributes */
 
-static ssize_t ipl_ccw_loadparm_show(struct kset *kset, char *page)
+static ssize_t ipl_ccw_loadparm_show(struct kobject *kobj,
+				     struct kobj_attribute *attr, char *page)
 {
 	char loadparm[LOADPARM_LEN + 1] = {};
 
@@ -379,7 +387,7 @@ static ssize_t ipl_ccw_loadparm_show(struct kset *kset, char *page)
 	return sprintf(page, "%s\n", loadparm);
 }
 
-static struct subsys_attribute sys_ipl_ccw_loadparm_attr =
+static struct kobj_attribute sys_ipl_ccw_loadparm_attr =
 	__ATTR(loadparm, 0444, ipl_ccw_loadparm_show, NULL);
 
 static struct attribute *ipl_ccw_attrs[] = {
@@ -465,7 +473,8 @@ static void reipl_get_ascii_loadparm(char *loadparm)
 	strstrip(loadparm);
 }
 
-static ssize_t reipl_ccw_loadparm_show(struct kset *kset, char *page)
+static ssize_t reipl_ccw_loadparm_show(struct kobject *kobj,
+				       struct kobj_attribute *attr, char *page)
 {
 	char buf[LOADPARM_LEN + 1];
 
@@ -473,7 +482,8 @@ static ssize_t reipl_ccw_loadparm_show(struct kset *kset, char *page)
 	return sprintf(page, "%s\n", buf);
 }
 
-static ssize_t reipl_ccw_loadparm_store(struct kset *kset,
+static ssize_t reipl_ccw_loadparm_store(struct kobject *kobj,
+					struct kobj_attribute *attr,
 					const char *buf, size_t len)
 {
 	int i, lp_len;
@@ -500,7 +510,7 @@ static ssize_t reipl_ccw_loadparm_store(struct kset *kset,
 	return len;
 }
 
-static struct subsys_attribute sys_reipl_ccw_loadparm_attr =
+static struct kobj_attribute sys_reipl_ccw_loadparm_attr =
 	__ATTR(loadparm, 0644, reipl_ccw_loadparm_show,
 	       reipl_ccw_loadparm_store);
 
@@ -568,13 +578,15 @@ static int reipl_set_type(enum ipl_type type)
 	return 0;
 }
 
-static ssize_t reipl_type_show(struct kset *kset, char *page)
+static ssize_t reipl_type_show(struct kobject *kobj,
+			       struct kobj_attribute *attr, char *page)
 {
 	return sprintf(page, "%s\n", ipl_type_str(reipl_type));
 }
 
-static ssize_t reipl_type_store(struct kset *kset, const char *buf,
-				size_t len)
+static ssize_t reipl_type_store(struct kobject *kobj,
+				struct kobj_attribute *attr,
+				const char *buf, size_t len)
 {
 	int rc = -EINVAL;
 
@@ -587,7 +599,7 @@ static ssize_t reipl_type_store(struct kset *kset, const char *buf,
 	return (rc != 0) ? rc : len;
 }
 
-static struct subsys_attribute reipl_type_attr =
+static struct kobj_attribute reipl_type_attr =
 		__ATTR(reipl_type, 0644, reipl_type_show, reipl_type_store);
 
 static decl_subsys(reipl, NULL);
@@ -663,13 +675,15 @@ static int dump_set_type(enum dump_type type)
 	return 0;
 }
 
-static ssize_t dump_type_show(struct kset *kset, char *page)
+static ssize_t dump_type_show(struct kobject *kobj,
+			      struct kobj_attribute *attr, char *page)
 {
 	return sprintf(page, "%s\n", dump_type_str(dump_type));
 }
 
-static ssize_t dump_type_store(struct kset *kset, const char *buf,
-			       size_t len)
+static ssize_t dump_type_store(struct kobject *kobj,
+			       struct kobj_attribute *attr,
+			       const char *buf, size_t len)
 {
 	int rc = -EINVAL;
 
@@ -682,7 +696,7 @@ static ssize_t dump_type_store(struct kset *kset, const char *buf,
 	return (rc != 0) ? rc : len;
 }
 
-static struct subsys_attribute dump_type_attr =
+static struct kobj_attribute dump_type_attr =
 		__ATTR(dump_type, 0644, dump_type_show, dump_type_store);
 
 static decl_subsys(dump, NULL);
@@ -695,13 +709,15 @@ static decl_subsys(shutdown_actions, NULL);
 
 /* on panic */
 
-static ssize_t on_panic_show(struct kset *kset, char *page)
+static ssize_t on_panic_show(struct kobject *kobj,
+			     struct kobj_attribute *attr, char *page)
 {
 	return sprintf(page, "%s\n", shutdown_action_str(on_panic_action));
 }
 
-static ssize_t on_panic_store(struct kset *kset, const char *buf,
-			      size_t len)
+static ssize_t on_panic_store(struct kobject *kobj,
+			      struct kobj_attribute *attr,
+			      const char *buf, size_t len)
 {
 	if (strncmp(buf, SHUTDOWN_REIPL_STR, strlen(SHUTDOWN_REIPL_STR)) == 0)
 		on_panic_action = SHUTDOWN_REIPL;
@@ -717,7 +733,7 @@ static ssize_t on_panic_store(struct kset *kset, const char *buf,
 	return len;
 }
 
-static struct subsys_attribute on_panic_attr =
+static struct kobj_attribute on_panic_attr =
 		__ATTR(on_panic, 0644, on_panic_show, on_panic_store);
 
 void do_reipl(void)
@@ -961,7 +977,7 @@ static int __init reipl_init(void)
 	rc = firmware_register(&reipl_subsys);
 	if (rc)
 		return rc;
-	rc = subsys_create_file(&reipl_subsys, &reipl_type_attr);
+	rc = sysfs_create_file(&reipl_subsys.kobj, &reipl_type_attr.attr);
 	if (rc) {
 		firmware_unregister(&reipl_subsys);
 		return rc;
@@ -1050,7 +1066,7 @@ static int __init dump_init(void)
 	rc = firmware_register(&dump_subsys);
 	if (rc)
 		return rc;
-	rc = subsys_create_file(&dump_subsys, &dump_type_attr);
+	rc = sysfs_create_file(&dump_subsys.kobj, &dump_type_attr.attr);
 	if (rc) {
 		firmware_unregister(&dump_subsys);
 		return rc;
@@ -1072,7 +1088,7 @@ static int __init shutdown_actions_init(void)
 	rc = firmware_register(&shutdown_actions_subsys);
 	if (rc)
 		return rc;
-	rc = subsys_create_file(&shutdown_actions_subsys, &on_panic_attr);
+	rc = sysfs_create_file(&shutdown_actions_subsys.kobj, &on_panic_attr.attr);
 	if (rc) {
 		firmware_unregister(&shutdown_actions_subsys);
 		return rc;
-- 
cgit v1.2.3-59-g8ed1b


From d91885bef25be2bab686bed082a5d82e358333b9 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Fri, 2 Nov 2007 17:17:00 -0400
Subject: kset: convert s390 ipl.c to use kset_create

Dynamically create the kset instead of declaring it statically.
This makes the kobject attributes now work properly that I broke in the
previous patch.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Michael Holzheu <holzheu@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Volker Sameske <sameske@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/s390/kernel/ipl.c | 73 +++++++++++++++++++++++++-------------------------
 1 file changed, 37 insertions(+), 36 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 50be9d063d68..c8179fc30baa 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -426,7 +426,7 @@ static struct attribute_group ipl_unknown_attr_group = {
 	.attrs = ipl_unknown_attrs,
 };
 
-static decl_subsys(ipl, NULL);
+static struct kset *ipl_kset;
 
 /*
  * reipl section
@@ -602,7 +602,7 @@ static ssize_t reipl_type_store(struct kobject *kobj,
 static struct kobj_attribute reipl_type_attr =
 		__ATTR(reipl_type, 0644, reipl_type_show, reipl_type_store);
 
-static decl_subsys(reipl, NULL);
+static struct kset *reipl_kset;
 
 /*
  * dump section
@@ -699,13 +699,13 @@ static ssize_t dump_type_store(struct kobject *kobj,
 static struct kobj_attribute dump_type_attr =
 		__ATTR(dump_type, 0644, dump_type_show, dump_type_store);
 
-static decl_subsys(dump, NULL);
+static struct kset *dump_kset;
 
 /*
  * Shutdown actions section
  */
 
-static decl_subsys(shutdown_actions, NULL);
+static struct kset *shutdown_actions_kset;
 
 /* on panic */
 
@@ -830,23 +830,23 @@ static int __init ipl_register_fcp_files(void)
 {
 	int rc;
 
-	rc = sysfs_create_group(&ipl_subsys.kobj,
+	rc = sysfs_create_group(&ipl_kset->kobj,
 				&ipl_fcp_attr_group);
 	if (rc)
 		goto out;
-	rc = sysfs_create_bin_file(&ipl_subsys.kobj,
+	rc = sysfs_create_bin_file(&ipl_kset->kobj,
 				   &ipl_parameter_attr);
 	if (rc)
 		goto out_ipl_parm;
-	rc = sysfs_create_bin_file(&ipl_subsys.kobj,
+	rc = sysfs_create_bin_file(&ipl_kset->kobj,
 				   &ipl_scp_data_attr);
 	if (!rc)
 		goto out;
 
-	sysfs_remove_bin_file(&ipl_subsys.kobj, &ipl_parameter_attr);
+	sysfs_remove_bin_file(&ipl_kset->kobj, &ipl_parameter_attr);
 
 out_ipl_parm:
-	sysfs_remove_group(&ipl_subsys.kobj, &ipl_fcp_attr_group);
+	sysfs_remove_group(&ipl_kset->kobj, &ipl_fcp_attr_group);
 out:
 	return rc;
 }
@@ -855,12 +855,12 @@ static int __init ipl_init(void)
 {
 	int rc;
 
-	rc = firmware_register(&ipl_subsys);
-	if (rc)
-		return rc;
+	ipl_kset = kset_create_and_add("ipl", NULL, &firmware_kset->kobj);
+	if (!ipl_kset)
+		return -ENOMEM;
 	switch (ipl_info.type) {
 	case IPL_TYPE_CCW:
-		rc = sysfs_create_group(&ipl_subsys.kobj,
+		rc = sysfs_create_group(&ipl_kset->kobj,
 					&ipl_ccw_attr_group);
 		break;
 	case IPL_TYPE_FCP:
@@ -868,16 +868,16 @@ static int __init ipl_init(void)
 		rc = ipl_register_fcp_files();
 		break;
 	case IPL_TYPE_NSS:
-		rc = sysfs_create_group(&ipl_subsys.kobj,
+		rc = sysfs_create_group(&ipl_kset->kobj,
 					&ipl_nss_attr_group);
 		break;
 	default:
-		rc = sysfs_create_group(&ipl_subsys.kobj,
+		rc = sysfs_create_group(&ipl_kset->kobj,
 					&ipl_unknown_attr_group);
 		break;
 	}
 	if (rc)
-		firmware_unregister(&ipl_subsys);
+		kset_unregister(ipl_kset);
 	return rc;
 }
 
@@ -899,7 +899,7 @@ static int __init reipl_nss_init(void)
 
 	if (!MACHINE_IS_VM)
 		return 0;
-	rc = sysfs_create_group(&reipl_subsys.kobj, &reipl_nss_attr_group);
+	rc = sysfs_create_group(&reipl_kset->kobj, &reipl_nss_attr_group);
 	if (rc)
 		return rc;
 	strncpy(reipl_nss_name, kernel_nss_name, NSS_NAME_SIZE + 1);
@@ -914,7 +914,7 @@ static int __init reipl_ccw_init(void)
 	reipl_block_ccw = (void *) get_zeroed_page(GFP_KERNEL);
 	if (!reipl_block_ccw)
 		return -ENOMEM;
-	rc = sysfs_create_group(&reipl_subsys.kobj, &reipl_ccw_attr_group);
+	rc = sysfs_create_group(&reipl_kset->kobj, &reipl_ccw_attr_group);
 	if (rc) {
 		free_page((unsigned long)reipl_block_ccw);
 		return rc;
@@ -952,7 +952,7 @@ static int __init reipl_fcp_init(void)
 	reipl_block_fcp = (void *) get_zeroed_page(GFP_KERNEL);
 	if (!reipl_block_fcp)
 		return -ENOMEM;
-	rc = sysfs_create_group(&reipl_subsys.kobj, &reipl_fcp_attr_group);
+	rc = sysfs_create_group(&reipl_kset->kobj, &reipl_fcp_attr_group);
 	if (rc) {
 		free_page((unsigned long)reipl_block_fcp);
 		return rc;
@@ -974,12 +974,12 @@ static int __init reipl_init(void)
 {
 	int rc;
 
-	rc = firmware_register(&reipl_subsys);
-	if (rc)
-		return rc;
-	rc = sysfs_create_file(&reipl_subsys.kobj, &reipl_type_attr.attr);
+	reipl_kset = kset_create_and_add("reipl", NULL, &firmware_kset->kobj);
+	if (!reipl_kset)
+		return -ENOMEM;
+	rc = sysfs_create_file(&reipl_kset->kobj, &reipl_type_attr.attr);
 	if (rc) {
-		firmware_unregister(&reipl_subsys);
+		kset_unregister(reipl_kset);
 		return rc;
 	}
 	rc = reipl_ccw_init();
@@ -1004,7 +1004,7 @@ static int __init dump_ccw_init(void)
 	dump_block_ccw = (void *) get_zeroed_page(GFP_KERNEL);
 	if (!dump_block_ccw)
 		return -ENOMEM;
-	rc = sysfs_create_group(&dump_subsys.kobj, &dump_ccw_attr_group);
+	rc = sysfs_create_group(&dump_kset->kobj, &dump_ccw_attr_group);
 	if (rc) {
 		free_page((unsigned long)dump_block_ccw);
 		return rc;
@@ -1028,7 +1028,7 @@ static int __init dump_fcp_init(void)
 	dump_block_fcp = (void *) get_zeroed_page(GFP_KERNEL);
 	if (!dump_block_fcp)
 		return -ENOMEM;
-	rc = sysfs_create_group(&dump_subsys.kobj, &dump_fcp_attr_group);
+	rc = sysfs_create_group(&dump_kset->kobj, &dump_fcp_attr_group);
 	if (rc) {
 		free_page((unsigned long)dump_block_fcp);
 		return rc;
@@ -1063,12 +1063,12 @@ static int __init dump_init(void)
 {
 	int rc;
 
-	rc = firmware_register(&dump_subsys);
-	if (rc)
-		return rc;
-	rc = sysfs_create_file(&dump_subsys.kobj, &dump_type_attr.attr);
+	dump_kset = kset_create_and_add("dump", NULL, &firmware_kset->kobj);
+	if (!dump_kset)
+		return -ENOMEM;
+	rc = sysfs_create_file(&dump_kset->kobj, &dump_type_attr);
 	if (rc) {
-		firmware_unregister(&dump_subsys);
+		kset_unregister(dump_kset);
 		return rc;
 	}
 	rc = dump_ccw_init();
@@ -1085,12 +1085,13 @@ static int __init shutdown_actions_init(void)
 {
 	int rc;
 
-	rc = firmware_register(&shutdown_actions_subsys);
-	if (rc)
-		return rc;
-	rc = sysfs_create_file(&shutdown_actions_subsys.kobj, &on_panic_attr.attr);
+	shutdown_actions_kset = kset_create_and_add("shutdown_actions", NULL,
+						    &firmware_kset->kobj);
+	if (!shutdown_actions_kset)
+		return -ENOMEM;
+	rc = sysfs_create_file(&shutdown_actions_kset->kobj, &on_panic_attr);
 	if (rc) {
-		firmware_unregister(&shutdown_actions_subsys);
+		kset_unregister(shutdown_actions_kset);
 		return rc;
 	}
 	atomic_notifier_chain_register(&panic_notifier_list,
-- 
cgit v1.2.3-59-g8ed1b


From f62ed9e33b3ccff54d66b08f82d11940bb9e269b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Mon, 5 Nov 2007 13:16:15 -0800
Subject: firmware: change firmware_kset to firmware_kobj

There is no firmware "subsystem" it's just a directory in /sys that
other portions of the kernel want to hook into.  So make it a kobject
not a kset to help alivate anyone who tries to do some odd kset-like
things with this.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/s390/kernel/ipl.c      | 8 ++++----
 drivers/acpi/bus.c          | 2 +-
 drivers/base/firmware.c     | 8 ++++----
 drivers/firmware/edd.c      | 2 +-
 drivers/firmware/efivars.c  | 2 +-
 drivers/parisc/pdc_stable.c | 2 +-
 include/linux/kobject.h     | 4 ++--
 7 files changed, 14 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index c8179fc30baa..b97694fa62ec 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -855,7 +855,7 @@ static int __init ipl_init(void)
 {
 	int rc;
 
-	ipl_kset = kset_create_and_add("ipl", NULL, &firmware_kset->kobj);
+	ipl_kset = kset_create_and_add("ipl", NULL, firmware_kobj);
 	if (!ipl_kset)
 		return -ENOMEM;
 	switch (ipl_info.type) {
@@ -974,7 +974,7 @@ static int __init reipl_init(void)
 {
 	int rc;
 
-	reipl_kset = kset_create_and_add("reipl", NULL, &firmware_kset->kobj);
+	reipl_kset = kset_create_and_add("reipl", NULL, firmware_kobj);
 	if (!reipl_kset)
 		return -ENOMEM;
 	rc = sysfs_create_file(&reipl_kset->kobj, &reipl_type_attr.attr);
@@ -1063,7 +1063,7 @@ static int __init dump_init(void)
 {
 	int rc;
 
-	dump_kset = kset_create_and_add("dump", NULL, &firmware_kset->kobj);
+	dump_kset = kset_create_and_add("dump", NULL, firmware_kobj);
 	if (!dump_kset)
 		return -ENOMEM;
 	rc = sysfs_create_file(&dump_kset->kobj, &dump_type_attr);
@@ -1086,7 +1086,7 @@ static int __init shutdown_actions_init(void)
 	int rc;
 
 	shutdown_actions_kset = kset_create_and_add("shutdown_actions", NULL,
-						    &firmware_kset->kobj);
+						    firmware_kobj);
 	if (!shutdown_actions_kset)
 		return -ENOMEM;
 	rc = sysfs_create_file(&shutdown_actions_kset->kobj, &on_panic_attr);
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index e550da684a47..1b4cf984b081 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -755,7 +755,7 @@ static int __init acpi_init(void)
 		return -ENODEV;
 	}
 
-	acpi_kobj = kobject_create_and_add("acpi", &firmware_kset->kobj);
+	acpi_kobj = kobject_create_and_add("acpi", firmware_kobj);
 	if (!acpi_kobj) {
 		printk(KERN_WARNING "%s: kset create error\n", __FUNCTION__);
 		acpi_kobj = NULL;
diff --git a/drivers/base/firmware.c b/drivers/base/firmware.c
index 9efff481f5dc..113815556809 100644
--- a/drivers/base/firmware.c
+++ b/drivers/base/firmware.c
@@ -15,13 +15,13 @@
 
 #include "base.h"
 
-struct kset *firmware_kset;
-EXPORT_SYMBOL_GPL(firmware_kset);
+struct kobject *firmware_kobj;
+EXPORT_SYMBOL_GPL(firmware_kobj);
 
 int __init firmware_init(void)
 {
-	firmware_kset = kset_create_and_add("firmware", NULL, NULL);
-	if (!firmware_kset)
+	firmware_kobj = kobject_create_and_add("firmware", NULL);
+	if (!firmware_kobj)
 		return -ENOMEM;
 	return 0;
 }
diff --git a/drivers/firmware/edd.c b/drivers/firmware/edd.c
index f07f37047cd1..ddcc95793068 100644
--- a/drivers/firmware/edd.c
+++ b/drivers/firmware/edd.c
@@ -756,7 +756,7 @@ edd_init(void)
 		return 1;
 	}
 
-	edd_kset = kset_create_and_add("edd", NULL, &firmware_kset->kobj);
+	edd_kset = kset_create_and_add("edd", NULL, firmware_kobj);
 	if (!edd_kset)
 		return -ENOMEM;
 
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index e17cd8133548..d1ad48190afc 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -668,7 +668,7 @@ efivars_init(void)
 	/*
 	 * For now we'll register the efi subsys within this driver
 	 */
-	efi_kset = kset_create_and_add("efi", NULL, &firmware_kset->kobj);
+	efi_kset = kset_create_and_add("efi", NULL, firmware_kobj);
 	if (!efi_kset) {
 		printk(KERN_ERR "efivars: Firmware registration failed.\n");
 		error = -ENOMEM;
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 444483405abf..ef1a353e5540 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -1059,7 +1059,7 @@ pdc_stable_init(void)
 	pdcs_osid = (u16)(result >> 16);
 
 	/* For now we'll register the stable kset within this driver */
-	stable_kset = kset_create_and_add("stable", NULL, &firmware_kset->kobj);
+	stable_kset = kset_create_and_add("stable", NULL, firmware_kobj);
 	if (!stable_kset) {
 		rc = -ENOMEM;
 		goto fail_firmreg;
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 29841bb5badb..673623f18464 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -210,8 +210,8 @@ extern struct kset *kernel_kset;
 extern struct kobject *hypervisor_kobj;
 /* The global /sys/power/ kset for people to chain off of */
 extern struct kset *power_kset;
-/* The global /sys/firmware/ kset for people to chain off of */
-extern struct kset *firmware_kset;
+/* The global /sys/firmware/ kobject for people to chain off of */
+extern struct kobject *firmware_kobj;
 
 extern int __must_check subsystem_register(struct kset *);
 extern void subsystem_unregister(struct kset *);
-- 
cgit v1.2.3-59-g8ed1b


From d76e15fb20eeb7632ef38876a884fe3508b2c01d Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Tue, 27 Nov 2007 11:28:26 -0800
Subject: driver core: make /sys/power a kobject

/sys/power should not be a kset, that's overkill.  This patch renames it
to power_kset and fixes up all usages of it in the tree.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/arm/mach-omap1/pm.c               |  2 +-
 arch/powerpc/platforms/pseries/power.c | 10 +++++-----
 include/linux/kobject.h                |  4 ++--
 kernel/power/disk.c                    |  2 +-
 kernel/power/main.c                    |  8 ++++----
 5 files changed, 13 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index 63edafb59490..d9805e3d9304 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -719,7 +719,7 @@ static int __init omap_pm_init(void)
 	omap_pm_init_proc();
 #endif
 
-	error = sysfs_create_file(&power_kset->kobj, &sleep_while_idle_attr);
+	error = sysfs_create_file(power_kobj, &sleep_while_idle_attr);
 	if (error)
 		printk(KERN_ERR "sysfs_create_file failed: %d\n", error);
 
diff --git a/arch/powerpc/platforms/pseries/power.c b/arch/powerpc/platforms/pseries/power.c
index 90706cf840fd..e95fc1594c84 100644
--- a/arch/powerpc/platforms/pseries/power.c
+++ b/arch/powerpc/platforms/pseries/power.c
@@ -53,7 +53,7 @@ static struct kobj_attribute auto_poweron_attr =
 	__ATTR(auto_poweron, 0644, auto_poweron_show, auto_poweron_store);
 
 #ifndef CONFIG_PM
-struct kset *power_kset;
+struct kobject *power_kobj;
 
 static struct attribute *g[] = {
         &auto_poweron_attr.attr,
@@ -66,16 +66,16 @@ static struct attribute_group attr_group = {
 
 static int __init pm_init(void)
 {
-	power_kset = kset_create_and_add("power", NULL, NULL);
-	if (!power_kset)
+	power_kobj = kobject_create_and_add("power", NULL);
+	if (!power_kobj)
 		return -ENOMEM;
-	return sysfs_create_group(&power_kset->kobj, &attr_group);
+	return sysfs_create_group(power_kobj, &attr_group);
 }
 core_initcall(pm_init);
 #else
 static int __init apo_pm_init(void)
 {
-	return (sysfs_create_file(&power_kset->kobj, &auto_poweron_attr));
+	return (sysfs_create_file(power_kobj, &auto_poweron_attr));
 }
 __initcall(apo_pm_init);
 #endif
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 78c851b4e67e..bb6868475edb 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -202,8 +202,8 @@ extern struct kobject * kset_find_obj(struct kset *, const char *);
 extern struct kobject *kernel_kobj;
 /* The global /sys/hypervisor/ kobject for people to chain off of */
 extern struct kobject *hypervisor_kobj;
-/* The global /sys/power/ kset for people to chain off of */
-extern struct kset *power_kset;
+/* The global /sys/power/ kobject for people to chain off of */
+extern struct kobject *power_kobj;
 /* The global /sys/firmware/ kobject for people to chain off of */
 extern struct kobject *firmware_kobj;
 
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index ef5aa2ca0ab0..b138b431e271 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -714,7 +714,7 @@ static struct attribute_group attr_group = {
 
 static int __init pm_disk_init(void)
 {
-	return sysfs_create_group(&power_kset->kobj, &attr_group);
+	return sysfs_create_group(power_kobj, &attr_group);
 }
 
 core_initcall(pm_disk_init);
diff --git a/kernel/power/main.c b/kernel/power/main.c
index b8139493b856..efc08360e627 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -276,7 +276,7 @@ EXPORT_SYMBOL(pm_suspend);
 
 #endif /* CONFIG_SUSPEND */
 
-struct kset *power_kset;
+struct kobject *power_kobj;
 
 /**
  *	state - control system power state.
@@ -389,10 +389,10 @@ static struct attribute_group attr_group = {
 
 static int __init pm_init(void)
 {
-	power_kset = kset_create_and_add("power", NULL, NULL);
-	if (!power_kset)
+	power_kobj = kobject_create_and_add("power", NULL);
+	if (!power_kobj)
 		return -ENOMEM;
-	return sysfs_create_group(&power_kset->kobj, &attr_group);
+	return sysfs_create_group(power_kobj, &attr_group);
 }
 
 core_initcall(pm_init);
-- 
cgit v1.2.3-59-g8ed1b


From 5b3f355d8fef95901505e924818b3031092453c2 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Mon, 17 Dec 2007 15:54:39 -0400
Subject: Kobject: change arch/x86/kernel/cpu/intel_cacheinfo.c to use
 kobject_init_and_add

Stop using kobject_register, as this way we can control the sending of
the uevent properly, after everything is properly initialized.

Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/x86/kernel/cpu/intel_cacheinfo.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 9f530ff43c21..3509542eed87 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -733,10 +733,8 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
 	if (unlikely(retval < 0))
 		return retval;
 
-	cache_kobject[cpu]->parent = &sys_dev->kobj;
-	kobject_set_name(cache_kobject[cpu], "%s", "cache");
-	cache_kobject[cpu]->ktype = &ktype_percpu_entry;
-	retval = kobject_register(cache_kobject[cpu]);
+	retval = kobject_init_and_add(cache_kobject[cpu], &ktype_percpu_entry,
+				      &sys_dev->kobj, "%s", "cache");
 	if (retval < 0) {
 		cpuid4_cache_sysfs_exit(cpu);
 		return retval;
@@ -746,10 +744,9 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
 		this_object = INDEX_KOBJECT_PTR(cpu,i);
 		this_object->cpu = cpu;
 		this_object->index = i;
-		this_object->kobj.parent = cache_kobject[cpu];
-		kobject_set_name(&(this_object->kobj), "index%1lu", i);
-		this_object->kobj.ktype = &ktype_cache;
-		retval = kobject_register(&(this_object->kobj));
+		retval = kobject_init_and_add(&(this_object->kobj),
+					      &ktype_cache, cache_kobject[cpu],
+					      "index%1lu", i);
 		if (unlikely(retval)) {
 			for (j = 0; j < i; j++) {
 				kobject_unregister(
@@ -759,10 +756,12 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
 			cpuid4_cache_sysfs_exit(cpu);
 			break;
 		}
+		kobject_uevent(&(this_object->kobj), KOBJ_ADD);
 	}
 	if (!retval)
 		cpu_set(cpu, cache_dev_map);
 
+	kobject_uevent(cache_kobject[cpu], KOBJ_ADD);
 	return retval;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From d48b335256cd75fcb1a4abb3ce8136d8d9c931cc Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Mon, 17 Dec 2007 15:54:39 -0400
Subject: Kobject: change arch/sh/kernel/cpu/sh4/sq.c to use
 kobject_init_and_add

Stop using kobject_register, as this way we can control the sending of
the uevent properly, after everything is properly initialized.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/sh/kernel/cpu/sh4/sq.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c
index b22a78c807e6..97fd9b9a4820 100644
--- a/arch/sh/kernel/cpu/sh4/sq.c
+++ b/arch/sh/kernel/cpu/sh4/sq.c
@@ -341,17 +341,18 @@ static int __devinit sq_sysdev_add(struct sys_device *sysdev)
 {
 	unsigned int cpu = sysdev->id;
 	struct kobject *kobj;
+	int error;
 
 	sq_kobject[cpu] = kzalloc(sizeof(struct kobject), GFP_KERNEL);
 	if (unlikely(!sq_kobject[cpu]))
 		return -ENOMEM;
 
 	kobj = sq_kobject[cpu];
-	kobj->parent = &sysdev->kobj;
-	kobject_set_name(kobj, "%s", "sq");
-	kobj->ktype = &ktype_percpu_entry;
-
-	return kobject_register(kobj);
+	error = kobject_init_and_add(kobj, &ktype_percpu_entry, &sysdev->kobj,
+				     "%s", "sq");
+	if (!error)
+		kobject_uevent(kobj, KOBJ_ADD);
+	return error;
 }
 
 static int __devexit sq_sysdev_remove(struct sys_device *sysdev)
-- 
cgit v1.2.3-59-g8ed1b


From c199790a8bc90c91b88ad1205dee2955401cff81 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Mon, 17 Dec 2007 15:54:39 -0400
Subject: Kobject: change arch/ia64/kernel/topology.c to use
 kobject_init_and_add

Stop using kobject_register, as this way we can control the sending of
the uevent properly, after everything is properly initialized.

Cc: Tony Luck <tony.luck@intel.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/ia64/kernel/topology.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index 14261fee5f4d..c4311e3adf55 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -354,17 +354,16 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
 	if (unlikely(retval < 0))
 		return retval;
 
-	all_cpu_cache_info[cpu].kobj.parent = &sys_dev->kobj;
-	kobject_set_name(&all_cpu_cache_info[cpu].kobj, "%s", "cache");
-	all_cpu_cache_info[cpu].kobj.ktype = &cache_ktype_percpu_entry;
-	retval = kobject_register(&all_cpu_cache_info[cpu].kobj);
+	retval = kobject_init_and_add(&all_cpu_cache_info[cpu].kobj,
+				      &cache_ktype_percpu_entry, &sys_dev->kobj,
+				      "%s", "cache");
 
 	for (i = 0; i < all_cpu_cache_info[cpu].num_cache_leaves; i++) {
 		this_object = LEAF_KOBJECT_PTR(cpu,i);
-		this_object->kobj.parent = &all_cpu_cache_info[cpu].kobj;
-		kobject_set_name(&(this_object->kobj), "index%1lu", i);
-		this_object->kobj.ktype = &cache_ktype;
-		retval = kobject_register(&(this_object->kobj));
+		retval = kobject_init_and_add(&(this_object->kobj),
+					      &cache_ktype,
+					      &all_cpu_cache_info[cpu].kobj,
+					      "index%1lu", i);
 		if (unlikely(retval)) {
 			for (j = 0; j < i; j++) {
 				kobject_unregister(
@@ -374,7 +373,9 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
 			cpu_cache_sysfs_exit(cpu);
 			break;
 		}
+		kobject_uevent(&(this_object->kobj), KOBJ_ADD);
 	}
+	kobject_uevent(&all_cpu_cache_info[cpu].kobj, KOBJ_ADD);
 	return retval;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From a521cf209c6e7042f85b2c5b16da3ffa8004fb7b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Wed, 19 Dec 2007 09:23:20 -0800
Subject: Kobject: change arch/x86/kernel/cpu/mcheck/mce_amd_64.c to use
 kobject_create_and_add

Make this kobject dynamic and convert it to not use kobject_register,
which is going away.

Cc: Jacob Shin <jacob.shin@amd.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/x86/kernel/cpu/mcheck/mce_amd_64.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index 752fb16a817d..2d65311d206e 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -65,7 +65,7 @@ static struct threshold_block threshold_defaults = {
 };
 
 struct threshold_bank {
-	struct kobject kobj;
+	struct kobject *kobj;
 	struct threshold_block *blocks;
 	cpumask_t cpus;
 };
@@ -433,7 +433,7 @@ static __cpuinit int allocate_threshold_blocks(unsigned int cpu,
 		per_cpu(threshold_banks, cpu)[bank]->blocks = b;
 
 	kobject_set_name(&b->kobj, "misc%i", block);
-	b->kobj.parent = &per_cpu(threshold_banks, cpu)[bank]->kobj;
+	b->kobj.parent = per_cpu(threshold_banks, cpu)[bank]->kobj;
 	b->kobj.ktype = &threshold_ktype;
 	err = kobject_register(&b->kobj);
 	if (err)
@@ -489,7 +489,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
 			goto out;
 
 		err = sysfs_create_link(&per_cpu(device_mce, cpu).kobj,
-					&b->kobj, name);
+					b->kobj, name);
 		if (err)
 			goto out;
 
@@ -505,16 +505,15 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
 		goto out;
 	}
 
-	kobject_set_name(&b->kobj, "threshold_bank%i", bank);
-	b->kobj.parent = &per_cpu(device_mce, cpu).kobj;
+	b->kobj = kobject_create_and_add(name, &per_cpu(device_mce, cpu).kobj);
+	if (!b->kobj)
+		goto out_free;
+
 #ifndef CONFIG_SMP
 	b->cpus = CPU_MASK_ALL;
 #else
 	b->cpus = per_cpu(cpu_core_map, cpu);
 #endif
-	err = kobject_register(&b->kobj);
-	if (err)
-		goto out_free;
 
 	per_cpu(threshold_banks, cpu)[bank] = b;
 
@@ -531,7 +530,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
 			continue;
 
 		err = sysfs_create_link(&per_cpu(device_mce, i).kobj,
-					&b->kobj, name);
+					b->kobj, name);
 		if (err)
 			goto out;
 
@@ -627,7 +626,7 @@ static void threshold_remove_bank(unsigned int cpu, int bank)
 	deallocate_threshold_block(cpu, bank);
 
 free_out:
-	kobject_unregister(&b->kobj);
+	kobject_unregister(b->kobj);
 	kfree(b);
 	per_cpu(threshold_banks, cpu)[bank] = NULL;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 542eb75a27616bdde95c8d3764e0ab703579f8b5 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Wed, 19 Dec 2007 09:23:20 -0800
Subject: Kobject: change arch/x86/kernel/cpu/mcheck/mce_amd_64.c to use
 kobject_init_and_add

Stop using kobject_register, as this way we can control the sending of
the uevent properly, after everything is properly initialized.

Cc: Jacob Shin <jacob.shin@amd.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/x86/kernel/cpu/mcheck/mce_amd_64.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index 2d65311d206e..ef15f35b10ed 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -432,10 +432,9 @@ static __cpuinit int allocate_threshold_blocks(unsigned int cpu,
 	else
 		per_cpu(threshold_banks, cpu)[bank]->blocks = b;
 
-	kobject_set_name(&b->kobj, "misc%i", block);
-	b->kobj.parent = per_cpu(threshold_banks, cpu)[bank]->kobj;
-	b->kobj.ktype = &threshold_ktype;
-	err = kobject_register(&b->kobj);
+	err = kobject_init_and_add(&b->kobj, &threshold_ktype,
+				   per_cpu(threshold_banks, cpu)[bank]->kobj,
+				   "misc%i", block);
 	if (err)
 		goto out_free;
 recurse:
@@ -451,6 +450,8 @@ recurse:
 	if (err)
 		goto out_free;
 
+	kobject_uevent(&b->kobj, KOBJ_ADD);
+
 	return err;
 
 out_free:
-- 
cgit v1.2.3-59-g8ed1b


From 52840bd628707979b5bbcce3c506786d3a69dba0 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Mon, 17 Dec 2007 23:05:35 -0700
Subject: Kobject: the cris iop_fw_load.c code is broken

This code is really really really broken.  So much so that it's almost
impossible to fix with a simple patch, so just comment out the offending
registration with the kobject core, and mark the driver as broken.

The problem is that the code is trying to register a "raw" struct
device, which is not allowed.  struct device is only for use within the
driver model.  This is being done to try to use the firmware layer which
wants a struct device.  To properly fix this, use something easy, like a
platform device, which is a struct device and can be used for this kind
of thing.

Cc: Mikael Starvik <starvik@axis.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/cris/arch-v32/drivers/iop_fw_load.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'arch')

diff --git a/arch/cris/arch-v32/drivers/iop_fw_load.c b/arch/cris/arch-v32/drivers/iop_fw_load.c
index 11f9895ded50..f4bdc1dfa320 100644
--- a/arch/cris/arch-v32/drivers/iop_fw_load.c
+++ b/arch/cris/arch-v32/drivers/iop_fw_load.c
@@ -20,6 +20,9 @@
 
 #define IOP_TIMEOUT 100
 
+#error "This driver is broken with regard to its driver core usage."
+#error "Please contact <greg@kroah.com> for details on how to fix it properly."
+
 static struct device iop_spu_device[2] = {
 	{ .bus_id =     "iop-spu0", },
 	{ .bus_id =     "iop-spu1", },
@@ -192,6 +195,13 @@ int iop_start_mpu(unsigned int start_addr)
 
 static int __init iop_fw_load_init(void)
 {
+#if 0
+	/*
+	 * static struct devices can not be added directly to sysfs by ignoring
+	 * the driver model infrastructure.  To fix this properly, please use
+	 * the platform_bus to register these devices to be able to properly
+	 * use the firmware infrastructure.
+	 */
 	device_initialize(&iop_spu_device[0]);
 	kobject_set_name(&iop_spu_device[0].kobj, "iop-spu0");
 	kobject_add(&iop_spu_device[0].kobj);
@@ -201,6 +211,7 @@ static int __init iop_fw_load_init(void)
 	device_initialize(&iop_mpu_device);
 	kobject_set_name(&iop_mpu_device.kobj, "iop-mpu");
 	kobject_add(&iop_mpu_device.kobj);
+#endif
 	return 0;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 38a382ae5dd4f4d04e3046816b0a41836094e538 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Thu, 20 Dec 2007 08:13:05 -0800
Subject: Kobject: convert arch/* from kobject_unregister() to kobject_put()

There is no need for kobject_unregister() anymore, thanks to Kay's
kobject cleanup changes, so replace all instances of it with
kobject_put().


Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/ia64/kernel/topology.c             | 9 ++++-----
 arch/s390/hypfs/inode.c                 | 4 ++--
 arch/sh/kernel/cpu/sh4/sq.c             | 2 +-
 arch/x86/kernel/cpu/intel_cacheinfo.c   | 9 ++++-----
 arch/x86/kernel/cpu/mcheck/mce_amd_64.c | 6 +++---
 5 files changed, 14 insertions(+), 16 deletions(-)

(limited to 'arch')

diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index c4311e3adf55..a2484fc1a06c 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -366,10 +366,9 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
 					      "index%1lu", i);
 		if (unlikely(retval)) {
 			for (j = 0; j < i; j++) {
-				kobject_unregister(
-					&(LEAF_KOBJECT_PTR(cpu,j)->kobj));
+				kobject_put(&(LEAF_KOBJECT_PTR(cpu,j)->kobj));
 			}
-			kobject_unregister(&all_cpu_cache_info[cpu].kobj);
+			kobject_put(&all_cpu_cache_info[cpu].kobj);
 			cpu_cache_sysfs_exit(cpu);
 			break;
 		}
@@ -386,10 +385,10 @@ static int __cpuinit cache_remove_dev(struct sys_device * sys_dev)
 	unsigned long i;
 
 	for (i = 0; i < all_cpu_cache_info[cpu].num_cache_leaves; i++)
-		kobject_unregister(&(LEAF_KOBJECT_PTR(cpu,i)->kobj));
+		kobject_put(&(LEAF_KOBJECT_PTR(cpu,i)->kobj));
 
 	if (all_cpu_cache_info[cpu].kobj.parent) {
-		kobject_unregister(&all_cpu_cache_info[cpu].kobj);
+		kobject_put(&all_cpu_cache_info[cpu].kobj);
 		memset(&all_cpu_cache_info[cpu].kobj,
 			0,
 			sizeof(struct kobject));
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 631a6109f642..4b010ff814c9 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -517,7 +517,7 @@ static int __init hypfs_init(void)
 	return 0;
 
 fail_filesystem:
-	kobject_unregister(s390_kobj);
+	kobject_put(s390_kobj);
 fail_sysfs:
 	if (!MACHINE_IS_VM)
 		hypfs_diag_exit();
@@ -531,7 +531,7 @@ static void __exit hypfs_exit(void)
 	if (!MACHINE_IS_VM)
 		hypfs_diag_exit();
 	unregister_filesystem(&hypfs_type);
-	kobject_unregister(s390_kobj);
+	kobject_put(s390_kobj);
 }
 
 module_init(hypfs_init)
diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c
index 97fd9b9a4820..3008c00eea6b 100644
--- a/arch/sh/kernel/cpu/sh4/sq.c
+++ b/arch/sh/kernel/cpu/sh4/sq.c
@@ -360,7 +360,7 @@ static int __devexit sq_sysdev_remove(struct sys_device *sysdev)
 	unsigned int cpu = sysdev->id;
 	struct kobject *kobj = sq_kobject[cpu];
 
-	kobject_unregister(kobj);
+	kobject_put(kobj);
 	return 0;
 }
 
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 3509542eed87..8b4507b8469b 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -749,10 +749,9 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
 					      "index%1lu", i);
 		if (unlikely(retval)) {
 			for (j = 0; j < i; j++) {
-				kobject_unregister(
-					&(INDEX_KOBJECT_PTR(cpu,j)->kobj));
+				kobject_put(&(INDEX_KOBJECT_PTR(cpu,j)->kobj));
 			}
-			kobject_unregister(cache_kobject[cpu]);
+			kobject_put(cache_kobject[cpu]);
 			cpuid4_cache_sysfs_exit(cpu);
 			break;
 		}
@@ -777,8 +776,8 @@ static void __cpuinit cache_remove_dev(struct sys_device * sys_dev)
 	cpu_clear(cpu, cache_dev_map);
 
 	for (i = 0; i < num_cache_leaves; i++)
-		kobject_unregister(&(INDEX_KOBJECT_PTR(cpu,i)->kobj));
-	kobject_unregister(cache_kobject[cpu]);
+		kobject_put(&(INDEX_KOBJECT_PTR(cpu,i)->kobj));
+	kobject_put(cache_kobject[cpu]);
 	cpuid4_cache_sysfs_exit(cpu);
 }
 
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index ef15f35b10ed..753588755fee 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -456,7 +456,7 @@ recurse:
 
 out_free:
 	if (b) {
-		kobject_unregister(&b->kobj);
+		kobject_put(&b->kobj);
 		kfree(b);
 	}
 	return err;
@@ -581,7 +581,7 @@ static void deallocate_threshold_block(unsigned int cpu,
 		return;
 
 	list_for_each_entry_safe(pos, tmp, &head->blocks->miscj, miscj) {
-		kobject_unregister(&pos->kobj);
+		kobject_put(&pos->kobj);
 		list_del(&pos->miscj);
 		kfree(pos);
 	}
@@ -627,7 +627,7 @@ static void threshold_remove_bank(unsigned int cpu, int bank)
 	deallocate_threshold_block(cpu, bank);
 
 free_out:
-	kobject_unregister(b->kobj);
+	kobject_put(b->kobj);
 	kfree(b);
 	per_cpu(threshold_banks, cpu)[bank] = NULL;
 }
-- 
cgit v1.2.3-59-g8ed1b


From af5ca3f4ec5cc4432a42a73b050dd8898ce8fd00 Mon Sep 17 00:00:00 2001
From: Kay Sievers <kay.sievers@vrfy.org>
Date: Thu, 20 Dec 2007 02:09:39 +0100
Subject: Driver core: change sysdev classes to use dynamic kobject names

All kobjects require a dynamically allocated name now. We no longer
need to keep track if the name is statically assigned, we can just
unconditionally free() all kobject names on cleanup.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/arm/kernel/time.c                   |  4 ++--
 arch/arm/mach-integrator/integrator_ap.c |  2 +-
 arch/arm/mach-pxa/cm-x270.c              |  2 +-
 arch/arm/mach-pxa/lpd270.c               |  2 +-
 arch/arm/mach-pxa/lubbock.c              |  2 +-
 arch/arm/mach-pxa/mainstone.c            |  2 +-
 arch/arm/mach-s3c2410/s3c2410.c          |  2 +-
 arch/arm/mach-s3c2412/s3c2412.c          |  2 +-
 arch/arm/mach-s3c2440/mach-osiris.c      |  2 +-
 arch/arm/mach-s3c2443/s3c2443.c          |  2 +-
 arch/arm/mach-sa1100/irq.c               |  2 +-
 arch/arm/oprofile/common.c               |  2 +-
 arch/arm/plat-omap/gpio.c                |  2 +-
 arch/arm/plat-s3c24xx/dma.c              |  2 +-
 arch/arm/plat-s3c24xx/s3c244x.c          |  4 ++--
 arch/avr32/kernel/time.c                 |  2 +-
 arch/mips/kernel/i8259.c                 |  2 +-
 arch/powerpc/platforms/cell/spu_base.c   |  2 +-
 arch/powerpc/platforms/powermac/pic.c    |  2 +-
 arch/powerpc/sysdev/ipic.c               |  2 +-
 arch/powerpc/sysdev/mpic.c               |  2 +-
 arch/powerpc/sysdev/qe_lib/qe_ic.c       |  2 +-
 arch/ppc/syslib/ipic.c                   |  2 +-
 arch/ppc/syslib/open_pic.c               |  2 +-
 arch/ppc/syslib/open_pic2.c              |  2 +-
 arch/s390/kernel/time.c                  |  2 +-
 arch/sh/drivers/dma/dma-sysfs.c          |  2 +-
 arch/sh/kernel/time.c                    |  2 +-
 arch/x86/kernel/apic_32.c                |  2 +-
 arch/x86/kernel/apic_64.c                |  2 +-
 arch/x86/kernel/cpu/mcheck/mce_64.c      |  2 +-
 arch/x86/kernel/i8237.c                  |  2 +-
 arch/x86/kernel/i8259_32.c               |  2 +-
 arch/x86/kernel/i8259_64.c               |  2 +-
 arch/x86/kernel/io_apic_32.c             |  2 +-
 arch/x86/kernel/io_apic_64.c             |  2 +-
 arch/x86/kernel/nmi_32.c                 |  2 +-
 arch/x86/kernel/nmi_64.c                 |  2 +-
 arch/x86/oprofile/nmi_int.c              |  2 +-
 drivers/acpi/pci_link.c                  |  2 +-
 drivers/base/class.c                     |  2 +-
 drivers/base/cpu.c                       |  2 +-
 drivers/base/memory.c                    |  2 +-
 drivers/base/node.c                      |  2 +-
 drivers/base/sys.c                       |  1 +
 drivers/edac/edac_module.c               |  2 +-
 drivers/kvm/kvm_main.c                   |  2 +-
 drivers/macintosh/via-pmu.c              |  2 +-
 drivers/scsi/libsas/sas_scsi_host.c      |  2 +-
 include/linux/kobject.h                  | 13 ++-----------
 include/linux/sysdev.h                   |  1 +
 kernel/rtmutex-tester.c                  |  2 +-
 kernel/time/clocksource.c                |  2 +-
 kernel/time/timekeeping.c                |  2 +-
 lib/kobject.c                            | 14 +++++---------
 55 files changed, 62 insertions(+), 73 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 1533d3ecd7a0..f6f3689a86ee 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -195,7 +195,7 @@ static int leds_shutdown(struct sys_device *dev)
 }
 
 static struct sysdev_class leds_sysclass = {
-	set_kset_name("leds"),
+	.name		= "leds",
 	.shutdown	= leds_shutdown,
 	.suspend	= leds_suspend,
 	.resume		= leds_resume,
@@ -369,7 +369,7 @@ static int timer_resume(struct sys_device *dev)
 #endif
 
 static struct sysdev_class timer_sysclass = {
-	set_kset_name("timer"),
+	.name		= "timer",
 	.suspend	= timer_suspend,
 	.resume		= timer_resume,
 };
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index 72280754354d..df37e93c6fc9 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -214,7 +214,7 @@ static int irq_resume(struct sys_device *dev)
 #endif
 
 static struct sysdev_class irq_class = {
-	set_kset_name("irq"),
+	.name		= "irq",
 	.suspend	= irq_suspend,
 	.resume		= irq_resume,
 };
diff --git a/arch/arm/mach-pxa/cm-x270.c b/arch/arm/mach-pxa/cm-x270.c
index 177664ccb2e2..a16349272f54 100644
--- a/arch/arm/mach-pxa/cm-x270.c
+++ b/arch/arm/mach-pxa/cm-x270.c
@@ -566,7 +566,7 @@ static int cmx270_resume(struct sys_device *dev)
 }
 
 static struct sysdev_class cmx270_pm_sysclass = {
-	set_kset_name("pm"),
+	.name = "pm",
 	.resume = cmx270_resume,
 	.suspend = cmx270_suspend,
 };
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index 26116440a7c9..78ebad063cba 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -122,7 +122,7 @@ static int lpd270_irq_resume(struct sys_device *dev)
 }
 
 static struct sysdev_class lpd270_irq_sysclass = {
-	set_kset_name("cpld_irq"),
+	.name = "cpld_irq",
 	.resume = lpd270_irq_resume,
 };
 
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index 011a1a72b61c..1d3112dc629e 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -126,7 +126,7 @@ static int lubbock_irq_resume(struct sys_device *dev)
 }
 
 static struct sysdev_class lubbock_irq_sysclass = {
-	set_kset_name("cpld_irq"),
+	.name = "cpld_irq",
 	.resume = lubbock_irq_resume,
 };
 
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index a4bc3483cbb3..41d8c6cea62b 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -120,7 +120,7 @@ static int mainstone_irq_resume(struct sys_device *dev)
 }
 
 static struct sysdev_class mainstone_irq_sysclass = {
-	set_kset_name("cpld_irq"),
+	.name = "cpld_irq",
 	.resume = mainstone_irq_resume,
 };
 
diff --git a/arch/arm/mach-s3c2410/s3c2410.c b/arch/arm/mach-s3c2410/s3c2410.c
index e580303cb0ab..0e7991940f81 100644
--- a/arch/arm/mach-s3c2410/s3c2410.c
+++ b/arch/arm/mach-s3c2410/s3c2410.c
@@ -100,7 +100,7 @@ void __init s3c2410_init_clocks(int xtal)
 }
 
 struct sysdev_class s3c2410_sysclass = {
-	set_kset_name("s3c2410-core"),
+	.name = "s3c2410-core",
 };
 
 static struct sys_device s3c2410_sysdev = {
diff --git a/arch/arm/mach-s3c2412/s3c2412.c b/arch/arm/mach-s3c2412/s3c2412.c
index 4f92a1562d77..265cd3f567a3 100644
--- a/arch/arm/mach-s3c2412/s3c2412.c
+++ b/arch/arm/mach-s3c2412/s3c2412.c
@@ -196,7 +196,7 @@ void __init s3c2412_init_clocks(int xtal)
 */
 
 struct sysdev_class s3c2412_sysclass = {
-	set_kset_name("s3c2412-core"),
+	.name = "s3c2412-core",
 };
 
 static int __init s3c2412_core_init(void)
diff --git a/arch/arm/mach-s3c2440/mach-osiris.c b/arch/arm/mach-s3c2440/mach-osiris.c
index c326983f4a8f..78af7664988b 100644
--- a/arch/arm/mach-s3c2440/mach-osiris.c
+++ b/arch/arm/mach-s3c2440/mach-osiris.c
@@ -312,7 +312,7 @@ static int osiris_pm_resume(struct sys_device *sd)
 #endif
 
 static struct sysdev_class osiris_pm_sysclass = {
-	set_kset_name("mach-osiris"),
+	.name		= "mach-osiris",
 	.suspend	= osiris_pm_suspend,
 	.resume		= osiris_pm_resume,
 };
diff --git a/arch/arm/mach-s3c2443/s3c2443.c b/arch/arm/mach-s3c2443/s3c2443.c
index 8d8117158d23..9ce490560af9 100644
--- a/arch/arm/mach-s3c2443/s3c2443.c
+++ b/arch/arm/mach-s3c2443/s3c2443.c
@@ -43,7 +43,7 @@ static struct map_desc s3c2443_iodesc[] __initdata = {
 };
 
 struct sysdev_class s3c2443_sysclass = {
-	set_kset_name("s3c2443-core"),
+	.name = "s3c2443-core",
 };
 
 static struct sys_device s3c2443_sysdev = {
diff --git a/arch/arm/mach-sa1100/irq.c b/arch/arm/mach-sa1100/irq.c
index edf3347d9c5b..3dc17d7bf38e 100644
--- a/arch/arm/mach-sa1100/irq.c
+++ b/arch/arm/mach-sa1100/irq.c
@@ -283,7 +283,7 @@ static int sa1100irq_resume(struct sys_device *dev)
 }
 
 static struct sysdev_class sa1100irq_sysclass = {
-	set_kset_name("sa11x0-irq"),
+	.name		= "sa11x0-irq",
 	.suspend	= sa1100irq_suspend,
 	.resume		= sa1100irq_resume,
 };
diff --git a/arch/arm/oprofile/common.c b/arch/arm/oprofile/common.c
index a9de727c9327..0a5cf3a6438b 100644
--- a/arch/arm/oprofile/common.c
+++ b/arch/arm/oprofile/common.c
@@ -96,7 +96,7 @@ static int op_arm_resume(struct sys_device *dev)
 }
 
 static struct sysdev_class oprofile_sysclass = {
-	set_kset_name("oprofile"),
+	.name		= "oprofile",
 	.resume		= op_arm_resume,
 	.suspend	= op_arm_suspend,
 };
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 6097753394ad..b2a87b8ef673 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -1455,7 +1455,7 @@ static int omap_gpio_resume(struct sys_device *dev)
 }
 
 static struct sysdev_class omap_gpio_sysclass = {
-	set_kset_name("gpio"),
+	.name		= "gpio",
 	.suspend	= omap_gpio_suspend,
 	.resume		= omap_gpio_resume,
 };
diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
index 29696e46ed65..aae1b9cbaf44 100644
--- a/arch/arm/plat-s3c24xx/dma.c
+++ b/arch/arm/plat-s3c24xx/dma.c
@@ -1265,7 +1265,7 @@ static int s3c2410_dma_resume(struct sys_device *dev)
 #endif /* CONFIG_PM */
 
 struct sysdev_class dma_sysclass = {
-	set_kset_name("s3c24xx-dma"),
+	.name		= "s3c24xx-dma",
 	.suspend	= s3c2410_dma_suspend,
 	.resume		= s3c2410_dma_resume,
 };
diff --git a/arch/arm/plat-s3c24xx/s3c244x.c b/arch/arm/plat-s3c24xx/s3c244x.c
index 3444b13afac5..f197bb3a2366 100644
--- a/arch/arm/plat-s3c24xx/s3c244x.c
+++ b/arch/arm/plat-s3c24xx/s3c244x.c
@@ -151,13 +151,13 @@ static int s3c244x_resume(struct sys_device *dev)
 /* Since the S3C2442 and S3C2440 share  items, put both sysclasses here */
 
 struct sysdev_class s3c2440_sysclass = {
-	set_kset_name("s3c2440-core"),
+	.name		= "s3c2440-core",
 	.suspend	= s3c244x_suspend,
 	.resume		= s3c244x_resume
 };
 
 struct sysdev_class s3c2442_sysclass = {
-	set_kset_name("s3c2442-core"),
+	.name		= "s3c2442-core",
 	.suspend	= s3c244x_suspend,
 	.resume		= s3c244x_resume
 };
diff --git a/arch/avr32/kernel/time.c b/arch/avr32/kernel/time.c
index 7014a3571ec0..36a46c3ae308 100644
--- a/arch/avr32/kernel/time.c
+++ b/arch/avr32/kernel/time.c
@@ -214,7 +214,7 @@ void __init time_init(void)
 }
 
 static struct sysdev_class timer_class = {
-	set_kset_name("timer"),
+	.name = "timer",
 };
 
 static struct sys_device timer_device = {
diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
index 471013577108..197d7977de35 100644
--- a/arch/mips/kernel/i8259.c
+++ b/arch/mips/kernel/i8259.c
@@ -238,7 +238,7 @@ static int i8259A_shutdown(struct sys_device *dev)
 }
 
 static struct sysdev_class i8259_sysdev_class = {
-	set_kset_name("i8259"),
+	.name = "i8259",
 	.resume = i8259A_resume,
 	.shutdown = i8259A_shutdown,
 };
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index c83c3e3f5178..a08862203643 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -459,7 +459,7 @@ static int spu_shutdown(struct sys_device *sysdev)
 }
 
 static struct sysdev_class spu_sysdev_class = {
-	set_kset_name("spu"),
+	.name = "spu",
 	.shutdown = spu_shutdown,
 };
 
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 999f5e160897..84c0d4ef76a2 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -663,7 +663,7 @@ static int pmacpic_resume(struct sys_device *sysdev)
 #endif /* CONFIG_PM && CONFIG_PPC32 */
 
 static struct sysdev_class pmacpic_sysclass = {
-	set_kset_name("pmac_pic"),
+	.name = "pmac_pic",
 };
 
 static struct sys_device device_pmacpic = {
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index 05a56e55804c..e898ff4d2b97 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -725,7 +725,7 @@ unsigned int ipic_get_irq(void)
 }
 
 static struct sysdev_class ipic_sysclass = {
-	set_kset_name("ipic"),
+	.name = "ipic",
 };
 
 static struct sys_device device_ipic = {
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index e47938899a92..212a94f5d34b 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1584,7 +1584,7 @@ static struct sysdev_class mpic_sysclass = {
 	.resume = mpic_resume,
 	.suspend = mpic_suspend,
 #endif
-	set_kset_name("mpic"),
+	.name = "mpic",
 };
 
 static int mpic_init_sys(void)
diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.c b/arch/powerpc/sysdev/qe_lib/qe_ic.c
index e1c0fd6dbc1a..f59444d3be75 100644
--- a/arch/powerpc/sysdev/qe_lib/qe_ic.c
+++ b/arch/powerpc/sysdev/qe_lib/qe_ic.c
@@ -483,7 +483,7 @@ int qe_ic_set_high_priority(unsigned int virq, unsigned int priority, int high)
 }
 
 static struct sysdev_class qe_ic_sysclass = {
-	set_kset_name("qe_ic"),
+	.name = "qe_ic",
 };
 
 static struct sys_device device_qe_ic = {
diff --git a/arch/ppc/syslib/ipic.c b/arch/ppc/syslib/ipic.c
index 9192777d0f78..4f163e20939e 100644
--- a/arch/ppc/syslib/ipic.c
+++ b/arch/ppc/syslib/ipic.c
@@ -614,7 +614,7 @@ int ipic_get_irq(void)
 }
 
 static struct sysdev_class ipic_sysclass = {
-	set_kset_name("ipic"),
+	.name = "ipic",
 };
 
 static struct sys_device device_ipic = {
diff --git a/arch/ppc/syslib/open_pic.c b/arch/ppc/syslib/open_pic.c
index 18ec94733293..da36522d327a 100644
--- a/arch/ppc/syslib/open_pic.c
+++ b/arch/ppc/syslib/open_pic.c
@@ -1043,7 +1043,7 @@ int openpic_resume(struct sys_device *sysdev)
 #endif /* CONFIG_PM */
 
 static struct sysdev_class openpic_sysclass = {
-	set_kset_name("openpic"),
+	.name = "openpic",
 };
 
 static struct sys_device device_openpic = {
diff --git a/arch/ppc/syslib/open_pic2.c b/arch/ppc/syslib/open_pic2.c
index d585207f9f77..449075a04798 100644
--- a/arch/ppc/syslib/open_pic2.c
+++ b/arch/ppc/syslib/open_pic2.c
@@ -666,7 +666,7 @@ int openpic2_resume(struct sys_device *sysdev)
 
 /* HACK ALERT */
 static struct sysdev_class openpic2_sysclass = {
-	set_kset_name("openpic2"),
+	.name = "openpic2",
 };
 
 static struct sys_device device_openpic2 = {
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 22b800ce2126..3bbac1293be4 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -1145,7 +1145,7 @@ static void etr_work_fn(struct work_struct *work)
  * Sysfs interface functions
  */
 static struct sysdev_class etr_sysclass = {
-	set_kset_name("etr")
+	.name	= "etr",
 };
 
 static struct sys_device etr_port0_dev = {
diff --git a/arch/sh/drivers/dma/dma-sysfs.c b/arch/sh/drivers/dma/dma-sysfs.c
index eebcd4768bbf..51b57c0d1a3c 100644
--- a/arch/sh/drivers/dma/dma-sysfs.c
+++ b/arch/sh/drivers/dma/dma-sysfs.c
@@ -19,7 +19,7 @@
 #include <asm/dma.h>
 
 static struct sysdev_class dma_sysclass = {
-	set_kset_name("dma"),
+	.name = "dma",
 };
 EXPORT_SYMBOL(dma_sysclass);
 
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index a3a67d151e52..2bc04bfee738 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -174,7 +174,7 @@ int timer_resume(struct sys_device *dev)
 #endif
 
 static struct sysdev_class timer_sysclass = {
-	set_kset_name("timer"),
+	.name	 = "timer",
 	.suspend = timer_suspend,
 	.resume	 = timer_resume,
 };
diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index edb5108e5d0e..a56c782653be 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -1530,7 +1530,7 @@ static int lapic_resume(struct sys_device *dev)
  */
 
 static struct sysdev_class lapic_sysclass = {
-	set_kset_name("lapic"),
+	.name		= "lapic",
 	.resume		= lapic_resume,
 	.suspend	= lapic_suspend,
 };
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index f28ccb588fba..fa6cdee6d303 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -639,7 +639,7 @@ static int lapic_resume(struct sys_device *dev)
 }
 
 static struct sysdev_class lapic_sysclass = {
-	set_kset_name("lapic"),
+	.name		= "lapic",
 	.resume		= lapic_resume,
 	.suspend	= lapic_suspend,
 };
diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index 4b21d29fb5aa..242e8668dbeb 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -745,7 +745,7 @@ static void mce_restart(void)
 
 static struct sysdev_class mce_sysclass = {
 	.resume = mce_resume,
-	set_kset_name("machinecheck"),
+	.name = "machinecheck",
 };
 
 DEFINE_PER_CPU(struct sys_device, device_mce);
diff --git a/arch/x86/kernel/i8237.c b/arch/x86/kernel/i8237.c
index 29313832df0c..dbd6c1d1b638 100644
--- a/arch/x86/kernel/i8237.c
+++ b/arch/x86/kernel/i8237.c
@@ -51,7 +51,7 @@ static int i8237A_suspend(struct sys_device *dev, pm_message_t state)
 }
 
 static struct sysdev_class i8237_sysdev_class = {
-	set_kset_name("i8237"),
+	.name = "i8237",
 	.suspend = i8237A_suspend,
 	.resume = i8237A_resume,
 };
diff --git a/arch/x86/kernel/i8259_32.c b/arch/x86/kernel/i8259_32.c
index f634fc715c99..5f3496d01984 100644
--- a/arch/x86/kernel/i8259_32.c
+++ b/arch/x86/kernel/i8259_32.c
@@ -258,7 +258,7 @@ static int i8259A_shutdown(struct sys_device *dev)
 }
 
 static struct sysdev_class i8259_sysdev_class = {
-	set_kset_name("i8259"),
+	.name = "i8259",
 	.suspend = i8259A_suspend,
 	.resume = i8259A_resume,
 	.shutdown = i8259A_shutdown,
diff --git a/arch/x86/kernel/i8259_64.c b/arch/x86/kernel/i8259_64.c
index 3f27ea0b9816..ba6d57286f56 100644
--- a/arch/x86/kernel/i8259_64.c
+++ b/arch/x86/kernel/i8259_64.c
@@ -370,7 +370,7 @@ static int i8259A_shutdown(struct sys_device *dev)
 }
 
 static struct sysdev_class i8259_sysdev_class = {
-	set_kset_name("i8259"),
+	.name = "i8259",
 	.suspend = i8259A_suspend,
 	.resume = i8259A_resume,
 	.shutdown = i8259A_shutdown,
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index a6b1490e00c4..ab77f1905469 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -2401,7 +2401,7 @@ static int ioapic_resume(struct sys_device *dev)
 }
 
 static struct sysdev_class ioapic_sysdev_class = {
-	set_kset_name("ioapic"),
+	.name = "ioapic",
 	.suspend = ioapic_suspend,
 	.resume = ioapic_resume,
 };
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index cbac1670c7c3..23a3ac06a23e 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -1850,7 +1850,7 @@ static int ioapic_resume(struct sys_device *dev)
 }
 
 static struct sysdev_class ioapic_sysdev_class = {
-	set_kset_name("ioapic"),
+	.name = "ioapic",
 	.suspend = ioapic_suspend,
 	.resume = ioapic_resume,
 };
diff --git a/arch/x86/kernel/nmi_32.c b/arch/x86/kernel/nmi_32.c
index 852db2906921..4f4bfd3a88b6 100644
--- a/arch/x86/kernel/nmi_32.c
+++ b/arch/x86/kernel/nmi_32.c
@@ -176,7 +176,7 @@ static int lapic_nmi_resume(struct sys_device *dev)
 
 
 static struct sysdev_class nmi_sysclass = {
-	set_kset_name("lapic_nmi"),
+	.name		= "lapic_nmi",
 	.resume		= lapic_nmi_resume,
 	.suspend	= lapic_nmi_suspend,
 };
diff --git a/arch/x86/kernel/nmi_64.c b/arch/x86/kernel/nmi_64.c
index 4253c4e8849c..c3d1476b6a11 100644
--- a/arch/x86/kernel/nmi_64.c
+++ b/arch/x86/kernel/nmi_64.c
@@ -211,7 +211,7 @@ static int lapic_nmi_resume(struct sys_device *dev)
 }
 
 static struct sysdev_class nmi_sysclass = {
-	set_kset_name("lapic_nmi"),
+	.name		= "lapic_nmi",
 	.resume		= lapic_nmi_resume,
 	.suspend	= lapic_nmi_suspend,
 };
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 944bbcdd2b8d..c8ab79ef4276 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -51,7 +51,7 @@ static int nmi_resume(struct sys_device *dev)
 
 
 static struct sysdev_class oprofile_sysclass = {
-	set_kset_name("oprofile"),
+	.name		= "oprofile",
 	.resume		= nmi_resume,
 	.suspend	= nmi_suspend,
 };
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index c9f526e55392..5400ea173f6f 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -911,7 +911,7 @@ __setup("acpi_irq_balance", acpi_irq_balance_set);
 
 /* FIXME: we will remove this interface after all drivers call pci_disable_device */
 static struct sysdev_class irqrouter_sysdev_class = {
-	set_kset_name("irqrouter"),
+	.name = "irqrouter",
 	.resume = irqrouter_resume,
 };
 
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 61fd26cc9f0e..b962a76875d2 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -466,7 +466,6 @@ static struct kset_uevent_ops class_uevent_ops = {
  * entirely soon.
  */
 static struct kset class_obj_subsys = {
-	.kobj = { .k_name = "class_obj", },
 	.uevent_ops = &class_uevent_ops,
 };
 
@@ -872,6 +871,7 @@ int __init classes_init(void)
 	/* ick, this is ugly, the things we go through to keep from showing up
 	 * in sysfs... */
 	kset_init(&class_obj_subsys);
+	kobject_set_name(&class_obj_subsys.kobj, "class_obj");
 	if (!class_obj_subsys.kobj.parent)
 		class_obj_subsys.kobj.parent = &class_obj_subsys.kobj;
 	return 0;
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 40545071e3c9..c5885f5ce0ac 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -14,7 +14,7 @@
 #include "base.h"
 
 struct sysdev_class cpu_sysdev_class = {
-	set_kset_name("cpu"),
+	.name = "cpu",
 };
 EXPORT_SYMBOL(cpu_sysdev_class);
 
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 7868707c7eda..7ae413fdd5fc 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -26,7 +26,7 @@
 #define MEMORY_CLASS_NAME	"memory"
 
 static struct sysdev_class memory_sysdev_class = {
-	set_kset_name(MEMORY_CLASS_NAME),
+	.name = MEMORY_CLASS_NAME,
 };
 
 static const char *memory_uevent_name(struct kset *kset, struct kobject *kobj)
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 88eeed72b5d6..e59861f18ce5 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -15,7 +15,7 @@
 #include <linux/device.h>
 
 static struct sysdev_class node_class = {
-	set_kset_name("node"),
+	.name = "node",
 };
 
 
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index e666441dd76b..2f79c55acdcc 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -136,6 +136,7 @@ int sysdev_class_register(struct sysdev_class * cls)
 	cls->kset.kobj.parent = &system_kset->kobj;
 	cls->kset.kobj.ktype = &ktype_sysdev_class;
 	cls->kset.kobj.kset = system_kset;
+	kobject_set_name(&cls->kset.kobj, cls->name);
 	return kset_register(&cls->kset);
 }
 
diff --git a/drivers/edac/edac_module.c b/drivers/edac/edac_module.c
index e0c4a4086055..7e1374afd967 100644
--- a/drivers/edac/edac_module.c
+++ b/drivers/edac/edac_module.c
@@ -31,7 +31,7 @@ struct workqueue_struct *edac_workqueue;
  *	need to export to other files in this modules
  */
 static struct sysdev_class edac_class = {
-	set_kset_name("edac"),
+	.name = "edac",
 };
 static int edac_class_valid;
 
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 47c10b8f89b3..c0f372f1d761 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -3451,7 +3451,7 @@ static int kvm_resume(struct sys_device *dev)
 }
 
 static struct sysdev_class kvm_sysdev_class = {
-	set_kset_name("kvm"),
+	.name = "kvm",
 	.suspend = kvm_suspend,
 	.resume = kvm_resume,
 };
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 6123c70153d3..ac420b17e16f 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -2796,7 +2796,7 @@ static int pmu_sys_resume(struct sys_device *sysdev)
 #endif /* CONFIG_PM_SLEEP && CONFIG_PPC32 */
 
 static struct sysdev_class pmu_sysclass = {
-	set_kset_name("pmu"),
+	.name = "pmu",
 };
 
 static struct sys_device device_pmu = {
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 7663841eb4cf..a3fdc57e2673 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -464,7 +464,7 @@ int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd)
 	res = sas_phy_reset(phy, 1);
 	if (res)
 		SAS_DPRINTK("Bus reset of %s failed 0x%x\n",
-			    phy->dev.kobj.k_name,
+			    kobject_name(&phy->dev.kobj),
 			    res);
 	if (res == TMF_RESP_FUNC_SUCC || res == TMF_RESP_FUNC_COMPLETE)
 		return SUCCESS;
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 504ac0eb4412..4adbe1d83081 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -61,7 +61,7 @@ enum kobject_action {
 };
 
 struct kobject {
-	const char		* k_name;
+	const char		*name;
 	struct kref		kref;
 	struct list_head	entry;
 	struct kobject		* parent;
@@ -69,7 +69,6 @@ struct kobject {
 	struct kobj_type	* ktype;
 	struct sysfs_dirent	* sd;
 	unsigned int state_initialized:1;
-	unsigned int state_name_set:1;
 	unsigned int state_in_sysfs:1;
 	unsigned int state_add_uevent_sent:1;
 	unsigned int state_remove_uevent_sent:1;
@@ -80,7 +79,7 @@ extern int kobject_set_name(struct kobject *, const char *, ...)
 
 static inline const char * kobject_name(const struct kobject * kobj)
 {
-	return kobj->k_name;
+	return kobj->name;
 }
 
 extern void kobject_init(struct kobject *kobj, struct kobj_type *ktype);
@@ -189,14 +188,6 @@ static inline struct kobj_type *get_ktype(struct kobject *kobj)
 
 extern struct kobject * kset_find_obj(struct kset *, const char *);
 
-
-/*
- * Use this when initializing an embedded kset with no other 
- * fields to initialize.
- */
-#define set_kset_name(str)	.kset = { .kobj = { .k_name = str } }
-
-
 /* The global /sys/kernel/ kobject for people to chain off of */
 extern struct kobject *kernel_kobj;
 /* The global /sys/hypervisor/ kobject for people to chain off of */
diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h
index e285746588d6..f752e73bf977 100644
--- a/include/linux/sysdev.h
+++ b/include/linux/sysdev.h
@@ -29,6 +29,7 @@
 struct sys_device;
 
 struct sysdev_class {
+	const char *name;
 	struct list_head	drivers;
 
 	/* Default operations for these types of devices */
diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c
index e3055ba69159..092e4c620af9 100644
--- a/kernel/rtmutex-tester.c
+++ b/kernel/rtmutex-tester.c
@@ -394,7 +394,7 @@ static SYSDEV_ATTR(status, 0600, sysfs_test_status, NULL);
 static SYSDEV_ATTR(command, 0600, NULL, sysfs_test_command);
 
 static struct sysdev_class rttest_sysclass = {
-	set_kset_name("rttest"),
+	.name = "rttest",
 };
 
 static int init_test_thread(int id)
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index c8a9d13874df..8d6125ad2cf0 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -441,7 +441,7 @@ static SYSDEV_ATTR(available_clocksource, 0600,
 		   sysfs_show_available_clocksources, NULL);
 
 static struct sysdev_class clocksource_sysclass = {
-	set_kset_name("clocksource"),
+	.name = "clocksource",
 };
 
 static struct sys_device device_clocksource = {
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index e5e466b27598..ab46ae8c062b 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -335,9 +335,9 @@ static int timekeeping_suspend(struct sys_device *dev, pm_message_t state)
 
 /* sysfs resume/suspend bits for timekeeping */
 static struct sysdev_class timekeeping_sysclass = {
+	.name		= "timekeeping",
 	.resume		= timekeeping_resume,
 	.suspend	= timekeeping_suspend,
-	set_kset_name("timekeeping"),
 };
 
 static struct sys_device device_timer = {
diff --git a/lib/kobject.c b/lib/kobject.c
index a0773734545c..8dc32454661d 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -165,7 +165,7 @@ static int kobject_add_internal(struct kobject *kobj)
 	if (!kobj)
 		return -ENOENT;
 
-	if (!kobj->k_name || !kobj->k_name[0]) {
+	if (!kobj->name || !kobj->name[0]) {
 		pr_debug("kobject: (%p): attempted to be registered with empty "
 			 "name!\n", kobj);
 		WARN_ON(1);
@@ -228,13 +228,11 @@ static int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
 	if (!name)
 		return -ENOMEM;
 
-
 	/* Free the old name, if necessary. */
-	kfree(kobj->k_name);
+	kfree(kobj->name);
 
 	/* Now, set the new name */
-	kobj->k_name = name;
-	kobj->state_name_set = 1;
+	kobj->name = name;
 
 	return 0;
 }
@@ -295,7 +293,6 @@ void kobject_init(struct kobject *kobj, struct kobj_type *ktype)
 	kref_init(&kobj->kref);
 	INIT_LIST_HEAD(&kobj->entry);
 	kobj->ktype = ktype;
-	kobj->state_name_set = 0;
 	kobj->state_in_sysfs = 0;
 	kobj->state_add_uevent_sent = 0;
 	kobj->state_remove_uevent_sent = 0;
@@ -551,8 +548,7 @@ struct kobject * kobject_get(struct kobject * kobj)
 static void kobject_cleanup(struct kobject *kobj)
 {
 	struct kobj_type *t = get_ktype(kobj);
-	const char *name = kobj->k_name;
-	int name_set = kobj->state_name_set;
+	const char *name = kobj->name;
 
 	pr_debug("kobject: '%s' (%p): %s\n",
 		 kobject_name(kobj), kobj, __FUNCTION__);
@@ -583,7 +579,7 @@ static void kobject_cleanup(struct kobject *kobj)
 	}
 
 	/* free name if we allocated it */
-	if (name_set && name) {
+	if (name) {
 		pr_debug("kobject: '%s': free name\n", name);
 		kfree(name);
 	}
-- 
cgit v1.2.3-59-g8ed1b


From 3611553ef985ef7c5863c8a94641738addd04cff Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Thu, 5 Jul 2007 17:08:09 +0200
Subject: [AVR32] Drop GFP_COMP for DMA memory allocations

dma_alloc_coherent wants to split pages after allocation in order to
reduce the memory footprint. This does not work well with GFP_COMP
pages, so drop this flag before allocation.

This patch was forward-ported from BSP 2.0

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/mm/dma-coherent.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'arch')

diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index 177fea8f7b71..6d8c794c3b81 100644
--- a/arch/avr32/mm/dma-coherent.c
+++ b/arch/avr32/mm/dma-coherent.c
@@ -41,6 +41,13 @@ static struct page *__dma_alloc(struct device *dev, size_t size,
 	struct page *page, *free, *end;
 	int order;
 
+	/* Following is a work-around (a.k.a. hack) to prevent pages
+	 * with __GFP_COMP being passed to split_page() which cannot
+	 * handle them.  The real problem is that this flag probably
+	 * should be 0 on AVR32 as it is not supported on this
+	 * platform--see CONFIG_HUGETLB_PAGE. */
+	gfp &= ~(__GFP_COMP);
+
 	size = PAGE_ALIGN(size);
 	order = get_order(size);
 
-- 
cgit v1.2.3-59-g8ed1b


From 7f0f616bb093823b70855685cf085d39a8784818 Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Wed, 28 Nov 2007 14:51:44 +0100
Subject: [AVR32] Remove redundant try_to_freeze() call from do_signal()

get_signal_to_deliver() will call try_to_freeze(), so there's no point
in do_signal() doing it as well.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/kernel/signal.c | 7 -------
 1 file changed, 7 deletions(-)

(limited to 'arch')

diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c
index 0ec14854a200..5616a00c10ba 100644
--- a/arch/avr32/kernel/signal.c
+++ b/arch/avr32/kernel/signal.c
@@ -270,19 +270,12 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset, int syscall)
 	if (!user_mode(regs))
 		return 0;
 
-	if (try_to_freeze()) {
-		signr = 0;
-		if (!signal_pending(current))
-			goto no_signal;
-	}
-
 	if (test_thread_flag(TIF_RESTORE_SIGMASK))
 		oldset = &current->saved_sigmask;
 	else if (!oldset)
 		oldset = &current->blocked;
 
 	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-no_signal:
 	if (syscall) {
 		switch (regs->r12) {
 		case -ERESTART_RESTARTBLOCK:
-- 
cgit v1.2.3-59-g8ed1b


From 13b54a50525a9685065684e1e11258d27dd27bdf Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Tue, 27 Nov 2007 13:50:45 +0100
Subject: [AVR32] Enable debugging only when needed

Keep track of processes being debugged (including the kernel itself)
and turn the OCD system on and off as appropriate. Since enabling
debugging turns off some optimizations in the CPU core, this fixes the
issue that enabling KProbes support or simply running a program under
gdbserver will reduce system performance significantly until the next
reboot.

The CPU performance will still be reduced for all processes while a
process is being debugged, but this is a lot better than reducing the
performance forever.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/kernel/Makefile      |   2 +-
 arch/avr32/kernel/kprobes.c     |   5 +-
 arch/avr32/kernel/ocd.c         | 163 ++++++++++++++++++++++++++++++++++++++++
 arch/avr32/kernel/process.c     |   5 +-
 arch/avr32/kernel/ptrace.c      |   5 +-
 include/asm-avr32/ocd.h         |   5 ++
 include/asm-avr32/ptrace.h      |  13 +++-
 include/asm-avr32/thread_info.h |   1 +
 8 files changed, 186 insertions(+), 13 deletions(-)
 create mode 100644 arch/avr32/kernel/ocd.c

(limited to 'arch')

diff --git a/arch/avr32/kernel/Makefile b/arch/avr32/kernel/Makefile
index 2d6d48f35f69..bc224a4e39fe 100644
--- a/arch/avr32/kernel/Makefile
+++ b/arch/avr32/kernel/Makefile
@@ -6,7 +6,7 @@ extra-y				:= head.o vmlinux.lds
 
 obj-$(CONFIG_SUBARCH_AVR32B)	+= entry-avr32b.o
 obj-y				+= syscall_table.o syscall-stubs.o irq.o
-obj-y				+= setup.o traps.o semaphore.o ptrace.o
+obj-y				+= setup.o traps.o semaphore.o ocd.o ptrace.o
 obj-y				+= signal.o sys_avr32.o process.o time.o
 obj-y				+= init_task.o switch_to.o cpu.o
 obj-$(CONFIG_MODULES)		+= module.o avr32_ksyms.o
diff --git a/arch/avr32/kernel/kprobes.c b/arch/avr32/kernel/kprobes.c
index 799ba89b07a8..f820e9f25520 100644
--- a/arch/avr32/kernel/kprobes.c
+++ b/arch/avr32/kernel/kprobes.c
@@ -48,6 +48,7 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
 void __kprobes arch_arm_kprobe(struct kprobe *p)
 {
 	pr_debug("arming kprobe at %p\n", p->addr);
+	ocd_enable(NULL);
 	*p->addr = BREAKPOINT_INSTRUCTION;
 	flush_icache_range((unsigned long)p->addr,
 			   (unsigned long)p->addr + sizeof(kprobe_opcode_t));
@@ -56,6 +57,7 @@ void __kprobes arch_arm_kprobe(struct kprobe *p)
 void __kprobes arch_disarm_kprobe(struct kprobe *p)
 {
 	pr_debug("disarming kprobe at %p\n", p->addr);
+	ocd_disable(NULL);
 	*p->addr = p->opcode;
 	flush_icache_range((unsigned long)p->addr,
 			   (unsigned long)p->addr + sizeof(kprobe_opcode_t));
@@ -260,9 +262,6 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 
 int __init arch_init_kprobes(void)
 {
-	printk("KPROBES: Enabling monitor mode (MM|DBE)...\n");
-	ocd_write(DC, (1 << OCD_DC_MM_BIT) | (1 << OCD_DC_DBE_BIT));
-
 	/* TODO: Register kretprobe trampoline */
 	return 0;
 }
diff --git a/arch/avr32/kernel/ocd.c b/arch/avr32/kernel/ocd.c
new file mode 100644
index 000000000000..c4f023294d75
--- /dev/null
+++ b/arch/avr32/kernel/ocd.c
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+
+#include <asm/ocd.h>
+
+static long ocd_count;
+static spinlock_t ocd_lock;
+
+/**
+ * ocd_enable - enable on-chip debugging
+ * @child: task to be debugged
+ *
+ * If @child is non-NULL, ocd_enable() first checks if debugging has
+ * already been enabled for @child, and if it has, does nothing.
+ *
+ * If @child is NULL (e.g. when debugging the kernel), or debugging
+ * has not already been enabled for it, ocd_enable() increments the
+ * reference count and enables the debugging hardware.
+ */
+void ocd_enable(struct task_struct *child)
+{
+	u32 dc;
+
+	if (child)
+		pr_debug("ocd_enable: child=%s [%u]\n",
+				child->comm, child->pid);
+	else
+		pr_debug("ocd_enable (no child)\n");
+
+	if (!child || !test_and_set_tsk_thread_flag(child, TIF_DEBUG)) {
+		spin_lock(&ocd_lock);
+		ocd_count++;
+		dc = ocd_read(DC);
+		dc |= (1 << OCD_DC_MM_BIT) | (1 << OCD_DC_DBE_BIT);
+		ocd_write(DC, dc);
+		spin_unlock(&ocd_lock);
+	}
+}
+
+/**
+ * ocd_disable - disable on-chip debugging
+ * @child: task that was being debugged, but isn't anymore
+ *
+ * If @child is non-NULL, ocd_disable() checks if debugging is enabled
+ * for @child, and if it isn't, does nothing.
+ *
+ * If @child is NULL (e.g. when debugging the kernel), or debugging is
+ * enabled, ocd_disable() decrements the reference count, and if it
+ * reaches zero, disables the debugging hardware.
+ */
+void ocd_disable(struct task_struct *child)
+{
+	u32 dc;
+
+	if (!child)
+		pr_debug("ocd_disable (no child)\n");
+	else if (test_tsk_thread_flag(child, TIF_DEBUG))
+		pr_debug("ocd_disable: child=%s [%u]\n",
+				child->comm, child->pid);
+
+	if (!child || test_and_clear_tsk_thread_flag(child, TIF_DEBUG)) {
+		spin_lock(&ocd_lock);
+		ocd_count--;
+
+		WARN_ON(ocd_count < 0);
+
+		if (ocd_count <= 0) {
+			dc = ocd_read(DC);
+			dc &= ~((1 << OCD_DC_MM_BIT) | (1 << OCD_DC_DBE_BIT));
+			ocd_write(DC, dc);
+		}
+		spin_unlock(&ocd_lock);
+	}
+}
+
+#ifdef CONFIG_DEBUG_FS
+#include <linux/debugfs.h>
+#include <linux/module.h>
+
+static struct dentry *ocd_debugfs_root;
+static struct dentry *ocd_debugfs_DC;
+static struct dentry *ocd_debugfs_DS;
+static struct dentry *ocd_debugfs_count;
+
+static u64 ocd_DC_get(void *data)
+{
+	return ocd_read(DC);
+}
+static void ocd_DC_set(void *data, u64 val)
+{
+	ocd_write(DC, val);
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_DC, ocd_DC_get, ocd_DC_set, "0x%08llx\n");
+
+static u64 ocd_DS_get(void *data)
+{
+	return ocd_read(DS);
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_DS, ocd_DS_get, NULL, "0x%08llx\n");
+
+static u64 ocd_count_get(void *data)
+{
+	return ocd_count;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_count, ocd_count_get, NULL, "%lld\n");
+
+static void ocd_debugfs_init(void)
+{
+	struct dentry *root;
+
+	root = debugfs_create_dir("ocd", NULL);
+	if (IS_ERR(root) || !root)
+		goto err_root;
+	ocd_debugfs_root = root;
+
+	ocd_debugfs_DC = debugfs_create_file("DC", S_IRUSR | S_IWUSR,
+				root, NULL, &fops_DC);
+	if (!ocd_debugfs_DC)
+		goto err_DC;
+
+	ocd_debugfs_DS = debugfs_create_file("DS", S_IRUSR, root,
+				NULL, &fops_DS);
+	if (!ocd_debugfs_DS)
+		goto err_DS;
+
+	ocd_debugfs_count = debugfs_create_file("count", S_IRUSR, root,
+				NULL, &fops_count);
+	if (!ocd_debugfs_count)
+		goto err_count;
+
+	return;
+
+err_count:
+	debugfs_remove(ocd_debugfs_DS);
+err_DS:
+	debugfs_remove(ocd_debugfs_DC);
+err_DC:
+	debugfs_remove(ocd_debugfs_root);
+err_root:
+	printk(KERN_WARNING "OCD: Failed to create debugfs entries\n");
+}
+#else
+static inline void ocd_debugfs_init(void)
+{
+
+}
+#endif
+
+static int __init ocd_init(void)
+{
+	spin_lock_init(&ocd_lock);
+	ocd_debugfs_init();
+	return 0;
+}
+arch_initcall(ocd_init);
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 9d6dac8af7a2..eaaa69bbdc38 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -103,7 +103,7 @@ EXPORT_SYMBOL(kernel_thread);
  */
 void exit_thread(void)
 {
-	/* nothing to do */
+	ocd_disable(current);
 }
 
 void flush_thread(void)
@@ -345,6 +345,9 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 	p->thread.cpu_context.ksp = (unsigned long)childregs;
 	p->thread.cpu_context.pc = (unsigned long)ret_from_fork;
 
+	if ((clone_flags & CLONE_PTRACE) && test_thread_flag(TIF_DEBUG))
+		ocd_enable(p);
+
 	return 0;
 }
 
diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c
index 002369e44093..1fed38fcf594 100644
--- a/arch/avr32/kernel/ptrace.c
+++ b/arch/avr32/kernel/ptrace.c
@@ -58,6 +58,7 @@ void ptrace_disable(struct task_struct *child)
 {
 	clear_tsk_thread_flag(child, TIF_SINGLE_STEP);
 	clear_tsk_thread_flag(child, TIF_BREAKPOINT);
+	ocd_disable(child);
 }
 
 /*
@@ -144,10 +145,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
 	int ret;
 
-	pr_debug("ptrace: Enabling monitor mode...\n");
-	ocd_write(DC, ocd_read(DC) | (1 << OCD_DC_MM_BIT)
-			| (1 << OCD_DC_DBE_BIT));
-
 	switch (request) {
 	/* Read the word at location addr in the child process */
 	case PTRACE_PEEKTEXT:
diff --git a/include/asm-avr32/ocd.h b/include/asm-avr32/ocd.h
index 996405e0393f..6bef09490235 100644
--- a/include/asm-avr32/ocd.h
+++ b/include/asm-avr32/ocd.h
@@ -533,6 +533,11 @@ static inline void __ocd_write(unsigned int reg, unsigned long value)
 #define ocd_read(reg)			__ocd_read(OCD_##reg)
 #define ocd_write(reg, value)		__ocd_write(OCD_##reg, value)
 
+struct task_struct;
+
+void ocd_enable(struct task_struct *child);
+void ocd_disable(struct task_struct *child);
+
 #endif /* !__ASSEMBLER__ */
 
 #endif /* __ASM_AVR32_OCD_H */
diff --git a/include/asm-avr32/ptrace.h b/include/asm-avr32/ptrace.h
index 8c5dba5e33df..9e2d44f4e0fe 100644
--- a/include/asm-avr32/ptrace.h
+++ b/include/asm-avr32/ptrace.h
@@ -121,7 +121,15 @@ struct pt_regs {
 };
 
 #ifdef __KERNEL__
-# define user_mode(regs) (((regs)->sr & MODE_MASK) == MODE_USER)
+
+#include <asm/ocd.h>
+
+#define arch_ptrace_attach(child)       ocd_enable(child)
+
+#define user_mode(regs)                 (((regs)->sr & MODE_MASK) == MODE_USER)
+#define instruction_pointer(regs)       ((regs)->pc)
+#define profile_pc(regs)                instruction_pointer(regs)
+
 extern void show_regs (struct pt_regs *);
 
 static __inline__ int valid_user_regs(struct pt_regs *regs)
@@ -141,9 +149,6 @@ static __inline__ int valid_user_regs(struct pt_regs *regs)
 	return 0;
 }
 
-#define instruction_pointer(regs) ((regs)->pc)
-
-#define profile_pc(regs) instruction_pointer(regs)
 
 #endif /* __KERNEL__ */
 
diff --git a/include/asm-avr32/thread_info.h b/include/asm-avr32/thread_info.h
index 184b574289b4..07049f6c0d41 100644
--- a/include/asm-avr32/thread_info.h
+++ b/include/asm-avr32/thread_info.h
@@ -88,6 +88,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_MEMDIE		6
 #define TIF_RESTORE_SIGMASK	7	/* restore signal mask in do_signal */
 #define TIF_CPU_GOING_TO_SLEEP	8	/* CPU is entering sleep 0 mode */
+#define TIF_DEBUG		30	/* debugging enabled */
 #define TIF_USERSPACE		31      /* true if FS sets userspace */
 
 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
-- 
cgit v1.2.3-59-g8ed1b


From a7f5bf9b95ace39cd8b61e8c9ca1035966779ed1 Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Wed, 31 Oct 2007 15:22:34 +0100
Subject: [AVR32] Include instrumentation menu

Remove KPROBES option from Kconfig.debug and include
kernel/Kconfig.instrumentation.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/Kconfig       |  2 ++
 arch/avr32/Kconfig.debug | 10 ----------
 2 files changed, 2 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index b77abce10c7a..bc08c7f0883f 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -219,6 +219,8 @@ source "drivers/Kconfig"
 
 source "fs/Kconfig"
 
+source "kernel/Kconfig.instrumentation"
+
 source "arch/avr32/Kconfig.debug"
 
 source "security/Kconfig"
diff --git a/arch/avr32/Kconfig.debug b/arch/avr32/Kconfig.debug
index 64ace00fe6cb..2283933a9a93 100644
--- a/arch/avr32/Kconfig.debug
+++ b/arch/avr32/Kconfig.debug
@@ -6,14 +6,4 @@ config TRACE_IRQFLAGS_SUPPORT
 
 source "lib/Kconfig.debug"
 
-config KPROBES
-	bool "Kprobes"
-	depends on DEBUG_KERNEL
-	help
-	  Kprobes allows you to trap at almost any kernel address and
-          execute a callback function.  register_kprobe() establishes
-          a probepoint and specifies the callback.  Kprobes is useful
-          for kernel debugging, non-intrusive instrumentation and testing.
-          If in doubt, say "N".
-
 endmenu
-- 
cgit v1.2.3-59-g8ed1b


From 2853ce5ecefe9d9ca119f33db0c23a3f075e35d9 Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Wed, 4 Jan 2006 17:26:23 +0100
Subject: [AVR32] Oprofile support

This adds the necessary architecture code to run oprofile on AVR32
using the performance counters documented by the AVR32 Architecture
Manual.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Philippe Elie <phil.el@wanadoo.fr>
---
 arch/avr32/Kconfig                   |   3 +
 arch/avr32/Makefile                  |   1 +
 arch/avr32/oprofile/Makefile         |   8 ++
 arch/avr32/oprofile/op_model_avr32.c | 235 +++++++++++++++++++++++++++++++++++
 4 files changed, 247 insertions(+)
 create mode 100644 arch/avr32/oprofile/Makefile
 create mode 100644 arch/avr32/oprofile/op_model_avr32.c

(limited to 'arch')

diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index bc08c7f0883f..767a19cfa423 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -54,6 +54,9 @@ config ARCH_HAS_ILOG2_U32
 config ARCH_HAS_ILOG2_U64
 	def_bool n
 
+config ARCH_SUPPORTS_OPROFILE
+	def_bool y
+
 config GENERIC_HWEIGHT
 	def_bool y
 
diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile
index 87918647be6d..f75d52cd2a4c 100644
--- a/arch/avr32/Makefile
+++ b/arch/avr32/Makefile
@@ -31,6 +31,7 @@ core-$(CONFIG_BOARD_ATNGW100)		+= arch/avr32/boards/atngw100/
 core-$(CONFIG_LOADER_U_BOOT)		+= arch/avr32/boot/u-boot/
 core-y					+= arch/avr32/kernel/
 core-y					+= arch/avr32/mm/
+drivers-$(CONFIG_OPROFILE)		+= arch/avr32/oprofile/
 libs-y					+= arch/avr32/lib/
 
 archincdir-$(CONFIG_PLATFORM_AT32AP)	:= arch-at32ap
diff --git a/arch/avr32/oprofile/Makefile b/arch/avr32/oprofile/Makefile
new file mode 100644
index 000000000000..1fe81c3c1e86
--- /dev/null
+++ b/arch/avr32/oprofile/Makefile
@@ -0,0 +1,8 @@
+obj-$(CONFIG_OPROFILE) += oprofile.o
+
+oprofile-y		:= $(addprefix ../../../drivers/oprofile/,	\
+				oprof.o cpu_buffer.o buffer_sync.o	\
+				event_buffer.o oprofile_files.o		\
+				oprofilefs.o oprofile_stats.o		\
+				timer_int.o)
+oprofile-y		+= op_model_avr32.o
diff --git a/arch/avr32/oprofile/op_model_avr32.c b/arch/avr32/oprofile/op_model_avr32.c
new file mode 100644
index 000000000000..e2f876bfc86b
--- /dev/null
+++ b/arch/avr32/oprofile/op_model_avr32.c
@@ -0,0 +1,235 @@
+/*
+ * AVR32 Performance Counter Driver
+ *
+ * Copyright (C) 2005-2007 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Author: Ronny Pedersen
+ */
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/oprofile.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+
+#include <asm/intc.h>
+#include <asm/sysreg.h>
+#include <asm/system.h>
+
+#define AVR32_PERFCTR_IRQ_GROUP	0
+#define AVR32_PERFCTR_IRQ_LINE	1
+
+enum { PCCNT, PCNT0, PCNT1, NR_counter };
+
+struct avr32_perf_counter {
+	unsigned long	enabled;
+	unsigned long	event;
+	unsigned long	count;
+	unsigned long	unit_mask;
+	unsigned long	kernel;
+	unsigned long	user;
+
+	u32		ie_mask;
+	u32		flag_mask;
+};
+
+static struct avr32_perf_counter counter[NR_counter] = {
+	{
+		.ie_mask	= SYSREG_BIT(IEC),
+		.flag_mask	= SYSREG_BIT(FC),
+	}, {
+		.ie_mask	= SYSREG_BIT(IE0),
+		.flag_mask	= SYSREG_BIT(F0),
+	}, {
+		.ie_mask	= SYSREG_BIT(IE1),
+		.flag_mask	= SYSREG_BIT(F1),
+	},
+};
+
+static void avr32_perf_counter_reset(void)
+{
+	/* Reset all counter and disable/clear all interrupts */
+	sysreg_write(PCCR, (SYSREG_BIT(PCCR_R)
+				| SYSREG_BIT(PCCR_C)
+				| SYSREG_BIT(FC)
+				| SYSREG_BIT(F0)
+				| SYSREG_BIT(F1)));
+}
+
+static irqreturn_t avr32_perf_counter_interrupt(int irq, void *dev_id)
+{
+	struct avr32_perf_counter *ctr = dev_id;
+	struct pt_regs *regs;
+	u32 pccr;
+
+	if (likely(!(intc_get_pending(AVR32_PERFCTR_IRQ_GROUP)
+					& (1 << AVR32_PERFCTR_IRQ_LINE))))
+		return IRQ_NONE;
+
+	regs = get_irq_regs();
+	pccr = sysreg_read(PCCR);
+
+	/* Clear the interrupt flags we're about to handle */
+	sysreg_write(PCCR, pccr);
+
+	/* PCCNT */
+	if (ctr->enabled && (pccr & ctr->flag_mask)) {
+		sysreg_write(PCCNT, -ctr->count);
+		oprofile_add_sample(regs, PCCNT);
+	}
+	ctr++;
+	/* PCNT0 */
+	if (ctr->enabled && (pccr & ctr->flag_mask)) {
+		sysreg_write(PCNT0, -ctr->count);
+		oprofile_add_sample(regs, PCNT0);
+	}
+	ctr++;
+	/* PCNT1 */
+	if (ctr->enabled && (pccr & ctr->flag_mask)) {
+		sysreg_write(PCNT1, -ctr->count);
+		oprofile_add_sample(regs, PCNT1);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int avr32_perf_counter_create_files(struct super_block *sb,
+		struct dentry *root)
+{
+	struct dentry *dir;
+	unsigned int i;
+	char filename[4];
+
+	for (i = 0; i < NR_counter; i++) {
+		snprintf(filename, sizeof(filename), "%u", i);
+		dir = oprofilefs_mkdir(sb, root, filename);
+
+		oprofilefs_create_ulong(sb, dir, "enabled",
+				&counter[i].enabled);
+		oprofilefs_create_ulong(sb, dir, "event",
+				&counter[i].event);
+		oprofilefs_create_ulong(sb, dir, "count",
+				&counter[i].count);
+
+		/* Dummy entries */
+		oprofilefs_create_ulong(sb, dir, "kernel",
+				&counter[i].kernel);
+		oprofilefs_create_ulong(sb, dir, "user",
+				&counter[i].user);
+		oprofilefs_create_ulong(sb, dir, "unit_mask",
+				&counter[i].unit_mask);
+	}
+
+	return 0;
+}
+
+static int avr32_perf_counter_setup(void)
+{
+	struct avr32_perf_counter *ctr;
+	u32 pccr;
+	int ret;
+	int i;
+
+	pr_debug("avr32_perf_counter_setup\n");
+
+	if (sysreg_read(PCCR) & SYSREG_BIT(PCCR_E)) {
+		printk(KERN_ERR
+			"oprofile: setup: perf counter already enabled\n");
+		return -EBUSY;
+	}
+
+	ret = request_irq(AVR32_PERFCTR_IRQ_GROUP,
+			avr32_perf_counter_interrupt, IRQF_SHARED,
+			"oprofile", counter);
+	if (ret)
+		return ret;
+
+	avr32_perf_counter_reset();
+
+	pccr = 0;
+	for (i = PCCNT; i < NR_counter; i++) {
+		ctr = &counter[i];
+		if (!ctr->enabled)
+			continue;
+
+		pr_debug("enabling counter %d...\n", i);
+
+		pccr |= ctr->ie_mask;
+
+		switch (i) {
+		case PCCNT:
+			/* PCCNT always counts cycles, so no events */
+			sysreg_write(PCCNT, -ctr->count);
+			break;
+		case PCNT0:
+			pccr |= SYSREG_BF(CONF0, ctr->event);
+			sysreg_write(PCNT0, -ctr->count);
+			break;
+		case PCNT1:
+			pccr |= SYSREG_BF(CONF1, ctr->event);
+			sysreg_write(PCNT1, -ctr->count);
+			break;
+		}
+	}
+
+	pr_debug("oprofile: writing 0x%x to PCCR...\n", pccr);
+
+	sysreg_write(PCCR, pccr);
+
+	return 0;
+}
+
+static void avr32_perf_counter_shutdown(void)
+{
+	pr_debug("avr32_perf_counter_shutdown\n");
+
+	avr32_perf_counter_reset();
+	free_irq(AVR32_PERFCTR_IRQ_GROUP, counter);
+}
+
+static int avr32_perf_counter_start(void)
+{
+	pr_debug("avr32_perf_counter_start\n");
+
+	sysreg_write(PCCR, sysreg_read(PCCR) | SYSREG_BIT(PCCR_E));
+
+	return 0;
+}
+
+static void avr32_perf_counter_stop(void)
+{
+	pr_debug("avr32_perf_counter_stop\n");
+
+	sysreg_write(PCCR, sysreg_read(PCCR) & ~SYSREG_BIT(PCCR_E));
+}
+
+static struct oprofile_operations avr32_perf_counter_ops __initdata = {
+	.create_files	= avr32_perf_counter_create_files,
+	.setup		= avr32_perf_counter_setup,
+	.shutdown	= avr32_perf_counter_shutdown,
+	.start		= avr32_perf_counter_start,
+	.stop		= avr32_perf_counter_stop,
+	.cpu_type	= "avr32",
+};
+
+int __init oprofile_arch_init(struct oprofile_operations *ops)
+{
+	if (!(current_cpu_data.features & AVR32_FEATURE_PCTR))
+		return -ENODEV;
+
+	memcpy(ops, &avr32_perf_counter_ops,
+			sizeof(struct oprofile_operations));
+
+	printk(KERN_INFO "oprofile: using AVR32 performance monitoring.\n");
+
+	return 0;
+}
+
+void oprofile_arch_exit(void)
+{
+
+}
-- 
cgit v1.2.3-59-g8ed1b


From 281ef58ccf62eaa6c4e4b7e4c0a3ee6b52e84e5b Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Fri, 7 Dec 2007 10:21:02 +0100
Subject: [AVR32] Provide more CPU information in /proc/cpuinfo and dmesg

Add the following fields to /proc/cpuinfo:
  * chip type and revision (from the JTAG chip id)
  * cpu MHz (from clk_get_rate())
  * features (from the CONFIG0 register)

Also rename "cpu family" to "cpu arch" and "cpu type" to "cpu core" to
remove some ambiguity.

Show chip type and revision at bootup, and clarify that the other
kinds of IDs that we're already printing are for the cpu core and
architecture. Rename "AP7000" to "AP7" since that's the name of the
core.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/kernel/cpu.c       | 94 +++++++++++++++++++++++++++++++------------
 include/asm-avr32/processor.h | 14 +++++++
 2 files changed, 82 insertions(+), 26 deletions(-)

(limited to 'arch')

diff --git a/arch/avr32/kernel/cpu.c b/arch/avr32/kernel/cpu.c
index 2714cf6452b5..14610019216e 100644
--- a/arch/avr32/kernel/cpu.c
+++ b/arch/avr32/kernel/cpu.c
@@ -13,6 +13,7 @@
 #include <linux/percpu.h>
 #include <linux/param.h>
 #include <linux/errno.h>
+#include <linux/clk.h>
 
 #include <asm/setup.h>
 #include <asm/sysreg.h>
@@ -187,9 +188,20 @@ static int __init topology_init(void)
 
 subsys_initcall(topology_init);
 
+struct chip_id_map {
+	u16	mid;
+	u16	pn;
+	const char *name;
+};
+
+static const struct chip_id_map chip_names[] = {
+	{ .mid = 0x1f, .pn = 0x1e82, .name = "AT32AP700x" },
+};
+#define NR_CHIP_NAMES ARRAY_SIZE(chip_names)
+
 static const char *cpu_names[] = {
 	"Morgan",
-	"AP7000",
+	"AP7",
 };
 #define NR_CPU_NAMES ARRAY_SIZE(cpu_names)
 
@@ -206,12 +218,32 @@ static const char *mmu_types[] = {
 	"MPU"
 };
 
+static const char *cpu_feature_flags[] = {
+	"rmw", "dsp", "simd", "ocd", "perfctr", "java", "fpu",
+};
+
+static const char *get_chip_name(struct avr32_cpuinfo *cpu)
+{
+	unsigned int i;
+	unsigned int mid = avr32_get_manufacturer_id(cpu);
+	unsigned int pn = avr32_get_product_number(cpu);
+
+	for (i = 0; i < NR_CHIP_NAMES; i++) {
+		if (chip_names[i].mid == mid && chip_names[i].pn == pn)
+			return chip_names[i].name;
+	}
+
+	return "(unknown)";
+}
+
 void __init setup_processor(void)
 {
 	unsigned long config0, config1;
 	unsigned long features;
 	unsigned cpu_id, cpu_rev, arch_id, arch_rev, mmu_type;
+	unsigned device_id;
 	unsigned tmp;
+	unsigned i;
 
 	config0 = sysreg_read(CONFIG0);
 	config1 = sysreg_read(CONFIG1);
@@ -221,11 +253,14 @@ void __init setup_processor(void)
 	arch_rev = SYSREG_BFEXT(AR, config0);
 	mmu_type = SYSREG_BFEXT(MMUT, config0);
 
+	device_id = ocd_read(DID);
+
 	boot_cpu_data.arch_type = arch_id;
 	boot_cpu_data.cpu_type = cpu_id;
 	boot_cpu_data.arch_revision = arch_rev;
 	boot_cpu_data.cpu_revision = cpu_rev;
 	boot_cpu_data.tlb_config = mmu_type;
+	boot_cpu_data.device_id = device_id;
 
 	tmp = SYSREG_BFEXT(ILSZ, config1);
 	if (tmp) {
@@ -247,41 +282,34 @@ void __init setup_processor(void)
 		return;
 	}
 
-	printk ("CPU: %s [%02x] revision %d (%s revision %d)\n",
+	printk ("CPU: %s chip revision %c\n", get_chip_name(&boot_cpu_data),
+			avr32_get_chip_revision(&boot_cpu_data) + 'A');
+	printk ("CPU: %s [%02x] core revision %d (%s arch revision %d)\n",
 		cpu_names[cpu_id], cpu_id, cpu_rev,
 		arch_names[arch_id], arch_rev);
 	printk ("CPU: MMU configuration: %s\n", mmu_types[mmu_type]);
 
 	printk ("CPU: features:");
 	features = 0;
-	if (config0 & SYSREG_BIT(CONFIG0_R)) {
+	if (config0 & SYSREG_BIT(CONFIG0_R))
 		features |= AVR32_FEATURE_RMW;
-		printk(" rmw");
-	}
-	if (config0 & SYSREG_BIT(CONFIG0_D)) {
+	if (config0 & SYSREG_BIT(CONFIG0_D))
 		features |= AVR32_FEATURE_DSP;
-		printk(" dsp");
-	}
-	if (config0 & SYSREG_BIT(CONFIG0_S)) {
+	if (config0 & SYSREG_BIT(CONFIG0_S))
 		features |= AVR32_FEATURE_SIMD;
-		printk(" simd");
-	}
-	if (config0 & SYSREG_BIT(CONFIG0_O)) {
+	if (config0 & SYSREG_BIT(CONFIG0_O))
 		features |= AVR32_FEATURE_OCD;
-		printk(" ocd");
-	}
-	if (config0 & SYSREG_BIT(CONFIG0_P)) {
+	if (config0 & SYSREG_BIT(CONFIG0_P))
 		features |= AVR32_FEATURE_PCTR;
-		printk(" perfctr");
-	}
-	if (config0 & SYSREG_BIT(CONFIG0_J)) {
+	if (config0 & SYSREG_BIT(CONFIG0_J))
 		features |= AVR32_FEATURE_JAVA;
-		printk(" java");
-	}
-	if (config0 & SYSREG_BIT(CONFIG0_F)) {
+	if (config0 & SYSREG_BIT(CONFIG0_F))
 		features |= AVR32_FEATURE_FPU;
-		printk(" fpu");
-	}
+
+	for (i = 0; i < ARRAY_SIZE(cpu_feature_flags); i++)
+		if (features & (1 << i))
+			printk(" %s", cpu_feature_flags[i]);
+
 	printk("\n");
 	boot_cpu_data.features = features;
 }
@@ -291,6 +319,8 @@ static int c_show(struct seq_file *m, void *v)
 {
 	unsigned int icache_size, dcache_size;
 	unsigned int cpu = smp_processor_id();
+	unsigned int freq;
+	unsigned int i;
 
 	icache_size = boot_cpu_data.icache.ways *
 		boot_cpu_data.icache.sets *
@@ -301,15 +331,21 @@ static int c_show(struct seq_file *m, void *v)
 
 	seq_printf(m, "processor\t: %d\n", cpu);
 
+	seq_printf(m, "chip type\t: %s revision %c\n",
+			get_chip_name(&boot_cpu_data),
+			avr32_get_chip_revision(&boot_cpu_data) + 'A');
 	if (boot_cpu_data.arch_type < NR_ARCH_NAMES)
-		seq_printf(m, "cpu family\t: %s revision %d\n",
+		seq_printf(m, "cpu arch\t: %s revision %d\n",
 			   arch_names[boot_cpu_data.arch_type],
 			   boot_cpu_data.arch_revision);
 	if (boot_cpu_data.cpu_type < NR_CPU_NAMES)
-		seq_printf(m, "cpu type\t: %s revision %d\n",
+		seq_printf(m, "cpu core\t: %s revision %d\n",
 			   cpu_names[boot_cpu_data.cpu_type],
 			   boot_cpu_data.cpu_revision);
 
+	freq = (clk_get_rate(boot_cpu_data.clk) + 500) / 1000;
+	seq_printf(m, "cpu MHz\t\t: %u.%03u\n", freq / 1000, freq % 1000);
+
 	seq_printf(m, "i-cache\t\t: %dK (%u ways x %u sets x %u)\n",
 		   icache_size >> 10,
 		   boot_cpu_data.icache.ways,
@@ -320,7 +356,13 @@ static int c_show(struct seq_file *m, void *v)
 		   boot_cpu_data.dcache.ways,
 		   boot_cpu_data.dcache.sets,
 		   boot_cpu_data.dcache.linesz);
-	seq_printf(m, "bogomips\t: %lu.%02lu\n",
+
+	seq_printf(m, "features\t:");
+	for (i = 0; i < ARRAY_SIZE(cpu_feature_flags); i++)
+		if (boot_cpu_data.features & (1 << i))
+			seq_printf(m, " %s", cpu_feature_flags[i]);
+
+	seq_printf(m, "\nbogomips\t: %lu.%02lu\n",
 		   boot_cpu_data.loops_per_jiffy / (500000/HZ),
 		   (boot_cpu_data.loops_per_jiffy / (5000/HZ)) % 100);
 
diff --git a/include/asm-avr32/processor.h b/include/asm-avr32/processor.h
index a52576b25afe..4212551c1cd9 100644
--- a/include/asm-avr32/processor.h
+++ b/include/asm-avr32/processor.h
@@ -57,11 +57,25 @@ struct avr32_cpuinfo {
 	unsigned short cpu_revision;
 	enum tlb_config tlb_config;
 	unsigned long features;
+	u32 device_id;
 
 	struct cache_info icache;
 	struct cache_info dcache;
 };
 
+static inline unsigned int avr32_get_manufacturer_id(struct avr32_cpuinfo *cpu)
+{
+	return (cpu->device_id >> 1) & 0x7f;
+}
+static inline unsigned int avr32_get_product_number(struct avr32_cpuinfo *cpu)
+{
+	return (cpu->device_id >> 12) & 0xffff;
+}
+static inline unsigned int avr32_get_chip_revision(struct avr32_cpuinfo *cpu)
+{
+	return (cpu->device_id >> 28) & 0x0f;
+}
+
 extern struct avr32_cpuinfo boot_cpu_data;
 
 #ifdef CONFIG_SMP
-- 
cgit v1.2.3-59-g8ed1b


From 438ff3f3cc33833206a48492e9d6674e4e82bed8 Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Mon, 29 Oct 2007 15:28:07 +0100
Subject: [AVR32] Add support for AT32AP7001 and AT32AP7002

These are derivatives of the AT32AP7000 chip, which means that most of
the code stays the same. Rename a few files, functions, definitions
and config symbols to reflect that they apply to all AP700x chips, and
exclude some platform devices from chips where they aren't present.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/Kconfig                         |   21 +-
 arch/avr32/Makefile                        |    2 +-
 arch/avr32/boards/atngw100/setup.c         |    2 +-
 arch/avr32/configs/atngw100_defconfig      |    9 +-
 arch/avr32/configs/atstk1002_defconfig     |    8 +-
 arch/avr32/mach-at32ap/Kconfig             |   12 +-
 arch/avr32/mach-at32ap/Makefile            |    4 +-
 arch/avr32/mach-at32ap/at32ap7000.c        | 1730 ---------------------------
 arch/avr32/mach-at32ap/at32ap700x.c        | 1742 ++++++++++++++++++++++++++++
 drivers/watchdog/Kconfig                   |    2 +-
 include/asm-avr32/arch-at32ap/at32ap7000.h |   35 -
 include/asm-avr32/arch-at32ap/at32ap700x.h |   35 +
 include/asm-avr32/arch-at32ap/cpu.h        |    2 +-
 include/asm-avr32/arch-at32ap/io.h         |    4 +-
 14 files changed, 1819 insertions(+), 1789 deletions(-)
 delete mode 100644 arch/avr32/mach-at32ap/at32ap7000.c
 create mode 100644 arch/avr32/mach-at32ap/at32ap700x.c
 delete mode 100644 include/asm-avr32/arch-at32ap/at32ap7000.h
 create mode 100644 include/asm-avr32/arch-at32ap/at32ap700x.h

(limited to 'arch')

diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 767a19cfa423..e37e6b92658d 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -84,13 +84,26 @@ config PLATFORM_AT32AP
 	select MMU
 	select PERFORMANCE_COUNTERS
 
+config CPU_AT32AP700X
+	bool
+	select PLATFORM_AT32AP
+
 choice
 	prompt "AVR32 CPU type"
 	default CPU_AT32AP7000
 
 config CPU_AT32AP7000
 	bool "AT32AP7000"
-	select PLATFORM_AT32AP
+	select CPU_AT32AP700X
+
+config CPU_AT32AP7001
+	bool "AT32AP7001"
+	select CPU_AT32AP700X
+
+config CPU_AT32AP7002
+	bool "AT32AP7002"
+	select CPU_AT32AP700X
+
 endchoice
 
 #
@@ -126,15 +139,15 @@ source "arch/avr32/mach-at32ap/Kconfig"
 
 config LOAD_ADDRESS
 	hex
-	default 0x10000000 if LOADER_U_BOOT=y && CPU_AT32AP7000=y
+	default 0x10000000 if LOADER_U_BOOT=y && CPU_AT32AP700X=y
 
 config ENTRY_ADDRESS
 	hex
-	default 0x90000000 if LOADER_U_BOOT=y && CPU_AT32AP7000=y
+	default 0x90000000 if LOADER_U_BOOT=y && CPU_AT32AP700X=y
 
 config PHYS_OFFSET
 	hex
-	default 0x10000000 if CPU_AT32AP7000=y
+	default 0x10000000 if CPU_AT32AP700X=y
 
 source "kernel/Kconfig.preempt"
 
diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile
index f75d52cd2a4c..17a3529341dd 100644
--- a/arch/avr32/Makefile
+++ b/arch/avr32/Makefile
@@ -16,7 +16,7 @@ KBUILD_AFLAGS	+= -mrelax -mno-pic
 CFLAGS_MODULE	+= -mno-relax
 LDFLAGS_vmlinux	+= --relax
 
-cpuflags-$(CONFIG_CPU_AT32AP7000)	+= -mcpu=ap7000
+cpuflags-$(CONFIG_PLATFORM_AT32AP)	+= -march=ap
 
 KBUILD_CFLAGS	+= $(cpuflags-y)
 KBUILD_AFLAGS	+= $(cpuflags-y)
diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c
index 52987c81d668..a398be284966 100644
--- a/arch/avr32/boards/atngw100/setup.c
+++ b/arch/avr32/boards/atngw100/setup.c
@@ -20,7 +20,7 @@
 #include <asm/io.h>
 #include <asm/setup.h>
 
-#include <asm/arch/at32ap7000.h>
+#include <asm/arch/at32ap700x.h>
 #include <asm/arch/board.h>
 #include <asm/arch/init.h>
 #include <asm/arch/portmux.h>
diff --git a/arch/avr32/configs/atngw100_defconfig b/arch/avr32/configs/atngw100_defconfig
index b799a68ffd97..374c17bcc05e 100644
--- a/arch/avr32/configs/atngw100_defconfig
+++ b/arch/avr32/configs/atngw100_defconfig
@@ -111,7 +111,10 @@ CONFIG_SUBARCH_AVR32B=y
 CONFIG_MMU=y
 CONFIG_PERFORMANCE_COUNTERS=y
 CONFIG_PLATFORM_AT32AP=y
+CONFIG_CPU_AT32AP700X=y
 CONFIG_CPU_AT32AP7000=y
+# CONFIG_CPU_AT32AP7001 is not set
+# CONFIG_CPU_AT32AP7002 is not set
 # CONFIG_BOARD_ATSTK1000 is not set
 CONFIG_BOARD_ATNGW100=y
 CONFIG_LOADER_U_BOOT=y
@@ -119,9 +122,9 @@ CONFIG_LOADER_U_BOOT=y
 #
 # Atmel AVR32 AP options
 #
-# CONFIG_AP7000_32_BIT_SMC is not set
-CONFIG_AP7000_16_BIT_SMC=y
-# CONFIG_AP7000_8_BIT_SMC is not set
+# CONFIG_AP700X_32_BIT_SMC is not set
+CONFIG_AP700X_16_BIT_SMC=y
+# CONFIG_AP700X_8_BIT_SMC is not set
 CONFIG_LOAD_ADDRESS=0x10000000
 CONFIG_ENTRY_ADDRESS=0x90000000
 CONFIG_PHYS_OFFSET=0x10000000
diff --git a/arch/avr32/configs/atstk1002_defconfig b/arch/avr32/configs/atstk1002_defconfig
index 3b977fdbaa78..7614c5465cd6 100644
--- a/arch/avr32/configs/atstk1002_defconfig
+++ b/arch/avr32/configs/atstk1002_defconfig
@@ -114,6 +114,8 @@ CONFIG_MMU=y
 CONFIG_PERFORMANCE_COUNTERS=y
 CONFIG_PLATFORM_AT32AP=y
 CONFIG_CPU_AT32AP7000=y
+# CONFIG_CPU_AT32AP7001 is not set
+# CONFIG_CPU_AT32AP7002 is not set
 CONFIG_BOARD_ATSTK1002=y
 CONFIG_BOARD_ATSTK1000=y
 # CONFIG_BOARD_ATNGW100 is not set
@@ -122,9 +124,9 @@ CONFIG_LOADER_U_BOOT=y
 #
 # Atmel AVR32 AP options
 #
-# CONFIG_AP7000_32_BIT_SMC is not set
-CONFIG_AP7000_16_BIT_SMC=y
-# CONFIG_AP7000_8_BIT_SMC is not set
+# CONFIG_AP700X_32_BIT_SMC is not set
+CONFIG_AP700X_16_BIT_SMC=y
+# CONFIG_AP700X_8_BIT_SMC is not set
 CONFIG_LOAD_ADDRESS=0x10000000
 CONFIG_ENTRY_ADDRESS=0x90000000
 CONFIG_PHYS_OFFSET=0x10000000
diff --git a/arch/avr32/mach-at32ap/Kconfig b/arch/avr32/mach-at32ap/Kconfig
index eb307838457b..a7bbcc82058e 100644
--- a/arch/avr32/mach-at32ap/Kconfig
+++ b/arch/avr32/mach-at32ap/Kconfig
@@ -3,9 +3,9 @@ if PLATFORM_AT32AP
 menu "Atmel AVR32 AP options"
 
 choice
-	prompt "AT32AP7000 static memory bus width"
-	depends on CPU_AT32AP7000
-	default AP7000_16_BIT_SMC
+	prompt "AT32AP700x static memory bus width"
+	depends on CPU_AT32AP700X
+	default AP700X_16_BIT_SMC
 	help
 	  Define the width of the AP7000 external static memory interface.
 	  This is used to determine how to mangle the address and/or data
@@ -15,13 +15,13 @@ choice
 	  width for all chip selects, excluding the flash (which is using
 	  raw access and is thus not affected by any of this.)
 
-config AP7000_32_BIT_SMC
+config AP700X_32_BIT_SMC
 	bool "32 bit"
 
-config AP7000_16_BIT_SMC
+config AP700X_16_BIT_SMC
 	bool "16 bit"
 
-config AP7000_8_BIT_SMC
+config AP700X_8_BIT_SMC
 	bool "8 bit"
 
 endchoice
diff --git a/arch/avr32/mach-at32ap/Makefile b/arch/avr32/mach-at32ap/Makefile
index a8b445046e3e..5e9f8217befc 100644
--- a/arch/avr32/mach-at32ap/Makefile
+++ b/arch/avr32/mach-at32ap/Makefile
@@ -1,4 +1,4 @@
 obj-y				+= at32ap.o clock.o intc.o extint.o pio.o hsmc.o
-obj-$(CONFIG_CPU_AT32AP7000)	+= at32ap7000.o
-obj-$(CONFIG_CPU_AT32AP7000)	+= time-tc.o
+obj-$(CONFIG_CPU_AT32AP700X)	+= at32ap700x.o
+obj-$(CONFIG_CPU_AT32AP700X)	+= time-tc.o
 obj-$(CONFIG_CPU_FREQ_AT32AP)	+= cpufreq.o
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c
deleted file mode 100644
index 7c4388f4f17f..000000000000
--- a/arch/avr32/mach-at32ap/at32ap7000.c
+++ /dev/null
@@ -1,1730 +0,0 @@
-/*
- * Copyright (C) 2005-2006 Atmel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/clk.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/spi/spi.h>
-
-#include <asm/io.h>
-
-#include <asm/arch/at32ap7000.h>
-#include <asm/arch/board.h>
-#include <asm/arch/portmux.h>
-
-#include <video/atmel_lcdc.h>
-
-#include "clock.h"
-#include "hmatrix.h"
-#include "pio.h"
-#include "pm.h"
-
-
-#define PBMEM(base)					\
-	{						\
-		.start		= base,			\
-		.end		= base + 0x3ff,		\
-		.flags		= IORESOURCE_MEM,	\
-	}
-#define IRQ(num)					\
-	{						\
-		.start		= num,			\
-		.end		= num,			\
-		.flags		= IORESOURCE_IRQ,	\
-	}
-#define NAMED_IRQ(num, _name)				\
-	{						\
-		.start		= num,			\
-		.end		= num,			\
-		.name		= _name,		\
-		.flags		= IORESOURCE_IRQ,	\
-	}
-
-/* REVISIT these assume *every* device supports DMA, but several
- * don't ... tc, smc, pio, rtc, watchdog, pwm, ps2, and more.
- */
-#define DEFINE_DEV(_name, _id)					\
-static u64 _name##_id##_dma_mask = DMA_32BIT_MASK;		\
-static struct platform_device _name##_id##_device = {		\
-	.name		= #_name,				\
-	.id		= _id,					\
-	.dev		= {					\
-		.dma_mask = &_name##_id##_dma_mask,		\
-		.coherent_dma_mask = DMA_32BIT_MASK,		\
-	},							\
-	.resource	= _name##_id##_resource,		\
-	.num_resources	= ARRAY_SIZE(_name##_id##_resource),	\
-}
-#define DEFINE_DEV_DATA(_name, _id)				\
-static u64 _name##_id##_dma_mask = DMA_32BIT_MASK;		\
-static struct platform_device _name##_id##_device = {		\
-	.name		= #_name,				\
-	.id		= _id,					\
-	.dev		= {					\
-		.dma_mask = &_name##_id##_dma_mask,		\
-		.platform_data	= &_name##_id##_data,		\
-		.coherent_dma_mask = DMA_32BIT_MASK,		\
-	},							\
-	.resource	= _name##_id##_resource,		\
-	.num_resources	= ARRAY_SIZE(_name##_id##_resource),	\
-}
-
-#define select_peripheral(pin, periph, flags)			\
-	at32_select_periph(GPIO_PIN_##pin, GPIO_##periph, flags)
-
-#define DEV_CLK(_name, devname, bus, _index)			\
-static struct clk devname##_##_name = {				\
-	.name		= #_name,				\
-	.dev		= &devname##_device.dev,		\
-	.parent		= &bus##_clk,				\
-	.mode		= bus##_clk_mode,			\
-	.get_rate	= bus##_clk_get_rate,			\
-	.index		= _index,				\
-}
-
-static DEFINE_SPINLOCK(pm_lock);
-
-unsigned long at32ap7000_osc_rates[3] = {
-	[0] = 32768,
-	/* FIXME: these are ATSTK1002-specific */
-	[1] = 20000000,
-	[2] = 12000000,
-};
-
-static unsigned long osc_get_rate(struct clk *clk)
-{
-	return at32ap7000_osc_rates[clk->index];
-}
-
-static unsigned long pll_get_rate(struct clk *clk, unsigned long control)
-{
-	unsigned long div, mul, rate;
-
-	if (!(control & PM_BIT(PLLEN)))
-		return 0;
-
-	div = PM_BFEXT(PLLDIV, control) + 1;
-	mul = PM_BFEXT(PLLMUL, control) + 1;
-
-	rate = clk->parent->get_rate(clk->parent);
-	rate = (rate + div / 2) / div;
-	rate *= mul;
-
-	return rate;
-}
-
-static unsigned long pll0_get_rate(struct clk *clk)
-{
-	u32 control;
-
-	control = pm_readl(PLL0);
-
-	return pll_get_rate(clk, control);
-}
-
-static unsigned long pll1_get_rate(struct clk *clk)
-{
-	u32 control;
-
-	control = pm_readl(PLL1);
-
-	return pll_get_rate(clk, control);
-}
-
-/*
- * The AT32AP7000 has five primary clock sources: One 32kHz
- * oscillator, two crystal oscillators and two PLLs.
- */
-static struct clk osc32k = {
-	.name		= "osc32k",
-	.get_rate	= osc_get_rate,
-	.users		= 1,
-	.index		= 0,
-};
-static struct clk osc0 = {
-	.name		= "osc0",
-	.get_rate	= osc_get_rate,
-	.users		= 1,
-	.index		= 1,
-};
-static struct clk osc1 = {
-	.name		= "osc1",
-	.get_rate	= osc_get_rate,
-	.index		= 2,
-};
-static struct clk pll0 = {
-	.name		= "pll0",
-	.get_rate	= pll0_get_rate,
-	.parent		= &osc0,
-};
-static struct clk pll1 = {
-	.name		= "pll1",
-	.get_rate	= pll1_get_rate,
-	.parent		= &osc0,
-};
-
-/*
- * The main clock can be either osc0 or pll0.  The boot loader may
- * have chosen one for us, so we don't really know which one until we
- * have a look at the SM.
- */
-static struct clk *main_clock;
-
-/*
- * Synchronous clocks are generated from the main clock. The clocks
- * must satisfy the constraint
- *   fCPU >= fHSB >= fPB
- * i.e. each clock must not be faster than its parent.
- */
-static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift)
-{
-	return main_clock->get_rate(main_clock) >> shift;
-};
-
-static void cpu_clk_mode(struct clk *clk, int enabled)
-{
-	unsigned long flags;
-	u32 mask;
-
-	spin_lock_irqsave(&pm_lock, flags);
-	mask = pm_readl(CPU_MASK);
-	if (enabled)
-		mask |= 1 << clk->index;
-	else
-		mask &= ~(1 << clk->index);
-	pm_writel(CPU_MASK, mask);
-	spin_unlock_irqrestore(&pm_lock, flags);
-}
-
-static unsigned long cpu_clk_get_rate(struct clk *clk)
-{
-	unsigned long cksel, shift = 0;
-
-	cksel = pm_readl(CKSEL);
-	if (cksel & PM_BIT(CPUDIV))
-		shift = PM_BFEXT(CPUSEL, cksel) + 1;
-
-	return bus_clk_get_rate(clk, shift);
-}
-
-static long cpu_clk_set_rate(struct clk *clk, unsigned long rate, int apply)
-{
-	u32 control;
-	unsigned long parent_rate, child_div, actual_rate, div;
-
-	parent_rate = clk->parent->get_rate(clk->parent);
-	control = pm_readl(CKSEL);
-
-	if (control & PM_BIT(HSBDIV))
-		child_div = 1 << (PM_BFEXT(HSBSEL, control) + 1);
-	else
-		child_div = 1;
-
-	if (rate > 3 * (parent_rate / 4) || child_div == 1) {
-		actual_rate = parent_rate;
-		control &= ~PM_BIT(CPUDIV);
-	} else {
-		unsigned int cpusel;
-		div = (parent_rate + rate / 2) / rate;
-		if (div > child_div)
-			div = child_div;
-		cpusel = (div > 1) ? (fls(div) - 2) : 0;
-		control = PM_BIT(CPUDIV) | PM_BFINS(CPUSEL, cpusel, control);
-		actual_rate = parent_rate / (1 << (cpusel + 1));
-	}
-
-	pr_debug("clk %s: new rate %lu (actual rate %lu)\n",
-			clk->name, rate, actual_rate);
-
-	if (apply)
-		pm_writel(CKSEL, control);
-
-	return actual_rate;
-}
-
-static void hsb_clk_mode(struct clk *clk, int enabled)
-{
-	unsigned long flags;
-	u32 mask;
-
-	spin_lock_irqsave(&pm_lock, flags);
-	mask = pm_readl(HSB_MASK);
-	if (enabled)
-		mask |= 1 << clk->index;
-	else
-		mask &= ~(1 << clk->index);
-	pm_writel(HSB_MASK, mask);
-	spin_unlock_irqrestore(&pm_lock, flags);
-}
-
-static unsigned long hsb_clk_get_rate(struct clk *clk)
-{
-	unsigned long cksel, shift = 0;
-
-	cksel = pm_readl(CKSEL);
-	if (cksel & PM_BIT(HSBDIV))
-		shift = PM_BFEXT(HSBSEL, cksel) + 1;
-
-	return bus_clk_get_rate(clk, shift);
-}
-
-static void pba_clk_mode(struct clk *clk, int enabled)
-{
-	unsigned long flags;
-	u32 mask;
-
-	spin_lock_irqsave(&pm_lock, flags);
-	mask = pm_readl(PBA_MASK);
-	if (enabled)
-		mask |= 1 << clk->index;
-	else
-		mask &= ~(1 << clk->index);
-	pm_writel(PBA_MASK, mask);
-	spin_unlock_irqrestore(&pm_lock, flags);
-}
-
-static unsigned long pba_clk_get_rate(struct clk *clk)
-{
-	unsigned long cksel, shift = 0;
-
-	cksel = pm_readl(CKSEL);
-	if (cksel & PM_BIT(PBADIV))
-		shift = PM_BFEXT(PBASEL, cksel) + 1;
-
-	return bus_clk_get_rate(clk, shift);
-}
-
-static void pbb_clk_mode(struct clk *clk, int enabled)
-{
-	unsigned long flags;
-	u32 mask;
-
-	spin_lock_irqsave(&pm_lock, flags);
-	mask = pm_readl(PBB_MASK);
-	if (enabled)
-		mask |= 1 << clk->index;
-	else
-		mask &= ~(1 << clk->index);
-	pm_writel(PBB_MASK, mask);
-	spin_unlock_irqrestore(&pm_lock, flags);
-}
-
-static unsigned long pbb_clk_get_rate(struct clk *clk)
-{
-	unsigned long cksel, shift = 0;
-
-	cksel = pm_readl(CKSEL);
-	if (cksel & PM_BIT(PBBDIV))
-		shift = PM_BFEXT(PBBSEL, cksel) + 1;
-
-	return bus_clk_get_rate(clk, shift);
-}
-
-static struct clk cpu_clk = {
-	.name		= "cpu",
-	.get_rate	= cpu_clk_get_rate,
-	.set_rate	= cpu_clk_set_rate,
-	.users		= 1,
-};
-static struct clk hsb_clk = {
-	.name		= "hsb",
-	.parent		= &cpu_clk,
-	.get_rate	= hsb_clk_get_rate,
-};
-static struct clk pba_clk = {
-	.name		= "pba",
-	.parent		= &hsb_clk,
-	.mode		= hsb_clk_mode,
-	.get_rate	= pba_clk_get_rate,
-	.index		= 1,
-};
-static struct clk pbb_clk = {
-	.name		= "pbb",
-	.parent		= &hsb_clk,
-	.mode		= hsb_clk_mode,
-	.get_rate	= pbb_clk_get_rate,
-	.users		= 1,
-	.index		= 2,
-};
-
-/* --------------------------------------------------------------------
- *  Generic Clock operations
- * -------------------------------------------------------------------- */
-
-static void genclk_mode(struct clk *clk, int enabled)
-{
-	u32 control;
-
-	control = pm_readl(GCCTRL(clk->index));
-	if (enabled)
-		control |= PM_BIT(CEN);
-	else
-		control &= ~PM_BIT(CEN);
-	pm_writel(GCCTRL(clk->index), control);
-}
-
-static unsigned long genclk_get_rate(struct clk *clk)
-{
-	u32 control;
-	unsigned long div = 1;
-
-	control = pm_readl(GCCTRL(clk->index));
-	if (control & PM_BIT(DIVEN))
-		div = 2 * (PM_BFEXT(DIV, control) + 1);
-
-	return clk->parent->get_rate(clk->parent) / div;
-}
-
-static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply)
-{
-	u32 control;
-	unsigned long parent_rate, actual_rate, div;
-
-	parent_rate = clk->parent->get_rate(clk->parent);
-	control = pm_readl(GCCTRL(clk->index));
-
-	if (rate > 3 * parent_rate / 4) {
-		actual_rate = parent_rate;
-		control &= ~PM_BIT(DIVEN);
-	} else {
-		div = (parent_rate + rate) / (2 * rate) - 1;
-		control = PM_BFINS(DIV, div, control) | PM_BIT(DIVEN);
-		actual_rate = parent_rate / (2 * (div + 1));
-	}
-
-	dev_dbg(clk->dev, "clk %s: new rate %lu (actual rate %lu)\n",
-		clk->name, rate, actual_rate);
-
-	if (apply)
-		pm_writel(GCCTRL(clk->index), control);
-
-	return actual_rate;
-}
-
-int genclk_set_parent(struct clk *clk, struct clk *parent)
-{
-	u32 control;
-
-	dev_dbg(clk->dev, "clk %s: new parent %s (was %s)\n",
-		clk->name, parent->name, clk->parent->name);
-
-	control = pm_readl(GCCTRL(clk->index));
-
-	if (parent == &osc1 || parent == &pll1)
-		control |= PM_BIT(OSCSEL);
-	else if (parent == &osc0 || parent == &pll0)
-		control &= ~PM_BIT(OSCSEL);
-	else
-		return -EINVAL;
-
-	if (parent == &pll0 || parent == &pll1)
-		control |= PM_BIT(PLLSEL);
-	else
-		control &= ~PM_BIT(PLLSEL);
-
-	pm_writel(GCCTRL(clk->index), control);
-	clk->parent = parent;
-
-	return 0;
-}
-
-static void __init genclk_init_parent(struct clk *clk)
-{
-	u32 control;
-	struct clk *parent;
-
-	BUG_ON(clk->index > 7);
-
-	control = pm_readl(GCCTRL(clk->index));
-	if (control & PM_BIT(OSCSEL))
-		parent = (control & PM_BIT(PLLSEL)) ? &pll1 : &osc1;
-	else
-		parent = (control & PM_BIT(PLLSEL)) ? &pll0 : &osc0;
-
-	clk->parent = parent;
-}
-
-/* --------------------------------------------------------------------
- *  System peripherals
- * -------------------------------------------------------------------- */
-static struct resource at32_pm0_resource[] = {
-	{
-		.start	= 0xfff00000,
-		.end	= 0xfff0007f,
-		.flags	= IORESOURCE_MEM,
-	},
-	IRQ(20),
-};
-
-static struct resource at32ap700x_rtc0_resource[] = {
-	{
-		.start	= 0xfff00080,
-		.end	= 0xfff000af,
-		.flags	= IORESOURCE_MEM,
-	},
-	IRQ(21),
-};
-
-static struct resource at32_wdt0_resource[] = {
-	{
-		.start	= 0xfff000b0,
-		.end	= 0xfff000cf,
-		.flags	= IORESOURCE_MEM,
-	},
-};
-
-static struct resource at32_eic0_resource[] = {
-	{
-		.start	= 0xfff00100,
-		.end	= 0xfff0013f,
-		.flags	= IORESOURCE_MEM,
-	},
-	IRQ(19),
-};
-
-DEFINE_DEV(at32_pm, 0);
-DEFINE_DEV(at32ap700x_rtc, 0);
-DEFINE_DEV(at32_wdt, 0);
-DEFINE_DEV(at32_eic, 0);
-
-/*
- * Peripheral clock for PM, RTC, WDT and EIC. PM will ensure that this
- * is always running.
- */
-static struct clk at32_pm_pclk = {
-	.name		= "pclk",
-	.dev		= &at32_pm0_device.dev,
-	.parent		= &pbb_clk,
-	.mode		= pbb_clk_mode,
-	.get_rate	= pbb_clk_get_rate,
-	.users		= 1,
-	.index		= 0,
-};
-
-static struct resource intc0_resource[] = {
-	PBMEM(0xfff00400),
-};
-struct platform_device at32_intc0_device = {
-	.name		= "intc",
-	.id		= 0,
-	.resource	= intc0_resource,
-	.num_resources	= ARRAY_SIZE(intc0_resource),
-};
-DEV_CLK(pclk, at32_intc0, pbb, 1);
-
-static struct clk ebi_clk = {
-	.name		= "ebi",
-	.parent		= &hsb_clk,
-	.mode		= hsb_clk_mode,
-	.get_rate	= hsb_clk_get_rate,
-	.users		= 1,
-};
-static struct clk hramc_clk = {
-	.name		= "hramc",
-	.parent		= &hsb_clk,
-	.mode		= hsb_clk_mode,
-	.get_rate	= hsb_clk_get_rate,
-	.users		= 1,
-	.index		= 3,
-};
-
-static struct resource smc0_resource[] = {
-	PBMEM(0xfff03400),
-};
-DEFINE_DEV(smc, 0);
-DEV_CLK(pclk, smc0, pbb, 13);
-DEV_CLK(mck, smc0, hsb, 0);
-
-static struct platform_device pdc_device = {
-	.name		= "pdc",
-	.id		= 0,
-};
-DEV_CLK(hclk, pdc, hsb, 4);
-DEV_CLK(pclk, pdc, pba, 16);
-
-static struct clk pico_clk = {
-	.name		= "pico",
-	.parent		= &cpu_clk,
-	.mode		= cpu_clk_mode,
-	.get_rate	= cpu_clk_get_rate,
-	.users		= 1,
-};
-
-static struct resource dmaca0_resource[] = {
-	{
-		.start	= 0xff200000,
-		.end	= 0xff20ffff,
-		.flags	= IORESOURCE_MEM,
-	},
-	IRQ(2),
-};
-DEFINE_DEV(dmaca, 0);
-DEV_CLK(hclk, dmaca0, hsb, 10);
-
-/* --------------------------------------------------------------------
- * HMATRIX
- * -------------------------------------------------------------------- */
-
-static struct clk hmatrix_clk = {
-	.name		= "hmatrix_clk",
-	.parent		= &pbb_clk,
-	.mode		= pbb_clk_mode,
-	.get_rate	= pbb_clk_get_rate,
-	.index		= 2,
-	.users		= 1,
-};
-#define HMATRIX_BASE	((void __iomem *)0xfff00800)
-
-#define hmatrix_readl(reg)					\
-	__raw_readl((HMATRIX_BASE) + HMATRIX_##reg)
-#define hmatrix_writel(reg,value)				\
-	__raw_writel((value), (HMATRIX_BASE) + HMATRIX_##reg)
-
-/*
- * Set bits in the HMATRIX Special Function Register (SFR) used by the
- * External Bus Interface (EBI). This can be used to enable special
- * features like CompactFlash support, NAND Flash support, etc. on
- * certain chipselects.
- */
-static inline void set_ebi_sfr_bits(u32 mask)
-{
-	u32 sfr;
-
-	clk_enable(&hmatrix_clk);
-	sfr = hmatrix_readl(SFR4);
-	sfr |= mask;
-	hmatrix_writel(SFR4, sfr);
-	clk_disable(&hmatrix_clk);
-}
-
-/* --------------------------------------------------------------------
- *  System Timer/Counter (TC)
- * -------------------------------------------------------------------- */
-static struct resource at32_systc0_resource[] = {
-	PBMEM(0xfff00c00),
-	IRQ(22),
-};
-struct platform_device at32_systc0_device = {
-	.name		= "systc",
-	.id		= 0,
-	.resource	= at32_systc0_resource,
-	.num_resources	= ARRAY_SIZE(at32_systc0_resource),
-};
-DEV_CLK(pclk, at32_systc0, pbb, 3);
-
-/* --------------------------------------------------------------------
- *  PIO
- * -------------------------------------------------------------------- */
-
-static struct resource pio0_resource[] = {
-	PBMEM(0xffe02800),
-	IRQ(13),
-};
-DEFINE_DEV(pio, 0);
-DEV_CLK(mck, pio0, pba, 10);
-
-static struct resource pio1_resource[] = {
-	PBMEM(0xffe02c00),
-	IRQ(14),
-};
-DEFINE_DEV(pio, 1);
-DEV_CLK(mck, pio1, pba, 11);
-
-static struct resource pio2_resource[] = {
-	PBMEM(0xffe03000),
-	IRQ(15),
-};
-DEFINE_DEV(pio, 2);
-DEV_CLK(mck, pio2, pba, 12);
-
-static struct resource pio3_resource[] = {
-	PBMEM(0xffe03400),
-	IRQ(16),
-};
-DEFINE_DEV(pio, 3);
-DEV_CLK(mck, pio3, pba, 13);
-
-static struct resource pio4_resource[] = {
-	PBMEM(0xffe03800),
-	IRQ(17),
-};
-DEFINE_DEV(pio, 4);
-DEV_CLK(mck, pio4, pba, 14);
-
-void __init at32_add_system_devices(void)
-{
-	platform_device_register(&at32_pm0_device);
-	platform_device_register(&at32_intc0_device);
-	platform_device_register(&at32ap700x_rtc0_device);
-	platform_device_register(&at32_wdt0_device);
-	platform_device_register(&at32_eic0_device);
-	platform_device_register(&smc0_device);
-	platform_device_register(&pdc_device);
-	platform_device_register(&dmaca0_device);
-
-	platform_device_register(&at32_systc0_device);
-
-	platform_device_register(&pio0_device);
-	platform_device_register(&pio1_device);
-	platform_device_register(&pio2_device);
-	platform_device_register(&pio3_device);
-	platform_device_register(&pio4_device);
-}
-
-/* --------------------------------------------------------------------
- *  USART
- * -------------------------------------------------------------------- */
-
-static struct atmel_uart_data atmel_usart0_data = {
-	.use_dma_tx	= 1,
-	.use_dma_rx	= 1,
-};
-static struct resource atmel_usart0_resource[] = {
-	PBMEM(0xffe00c00),
-	IRQ(6),
-};
-DEFINE_DEV_DATA(atmel_usart, 0);
-DEV_CLK(usart, atmel_usart0, pba, 3);
-
-static struct atmel_uart_data atmel_usart1_data = {
-	.use_dma_tx	= 1,
-	.use_dma_rx	= 1,
-};
-static struct resource atmel_usart1_resource[] = {
-	PBMEM(0xffe01000),
-	IRQ(7),
-};
-DEFINE_DEV_DATA(atmel_usart, 1);
-DEV_CLK(usart, atmel_usart1, pba, 4);
-
-static struct atmel_uart_data atmel_usart2_data = {
-	.use_dma_tx	= 1,
-	.use_dma_rx	= 1,
-};
-static struct resource atmel_usart2_resource[] = {
-	PBMEM(0xffe01400),
-	IRQ(8),
-};
-DEFINE_DEV_DATA(atmel_usart, 2);
-DEV_CLK(usart, atmel_usart2, pba, 5);
-
-static struct atmel_uart_data atmel_usart3_data = {
-	.use_dma_tx	= 1,
-	.use_dma_rx	= 1,
-};
-static struct resource atmel_usart3_resource[] = {
-	PBMEM(0xffe01800),
-	IRQ(9),
-};
-DEFINE_DEV_DATA(atmel_usart, 3);
-DEV_CLK(usart, atmel_usart3, pba, 6);
-
-static inline void configure_usart0_pins(void)
-{
-	select_peripheral(PA(8),  PERIPH_B, 0);	/* RXD	*/
-	select_peripheral(PA(9),  PERIPH_B, 0);	/* TXD	*/
-}
-
-static inline void configure_usart1_pins(void)
-{
-	select_peripheral(PA(17), PERIPH_A, 0);	/* RXD	*/
-	select_peripheral(PA(18), PERIPH_A, 0);	/* TXD	*/
-}
-
-static inline void configure_usart2_pins(void)
-{
-	select_peripheral(PB(26), PERIPH_B, 0);	/* RXD	*/
-	select_peripheral(PB(27), PERIPH_B, 0);	/* TXD	*/
-}
-
-static inline void configure_usart3_pins(void)
-{
-	select_peripheral(PB(18), PERIPH_B, 0);	/* RXD	*/
-	select_peripheral(PB(17), PERIPH_B, 0);	/* TXD	*/
-}
-
-static struct platform_device *__initdata at32_usarts[4];
-
-void __init at32_map_usart(unsigned int hw_id, unsigned int line)
-{
-	struct platform_device *pdev;
-
-	switch (hw_id) {
-	case 0:
-		pdev = &atmel_usart0_device;
-		configure_usart0_pins();
-		break;
-	case 1:
-		pdev = &atmel_usart1_device;
-		configure_usart1_pins();
-		break;
-	case 2:
-		pdev = &atmel_usart2_device;
-		configure_usart2_pins();
-		break;
-	case 3:
-		pdev = &atmel_usart3_device;
-		configure_usart3_pins();
-		break;
-	default:
-		return;
-	}
-
-	if (PXSEG(pdev->resource[0].start) == P4SEG) {
-		/* Addresses in the P4 segment are permanently mapped 1:1 */
-		struct atmel_uart_data *data = pdev->dev.platform_data;
-		data->regs = (void __iomem *)pdev->resource[0].start;
-	}
-
-	pdev->id = line;
-	at32_usarts[line] = pdev;
-}
-
-struct platform_device *__init at32_add_device_usart(unsigned int id)
-{
-	platform_device_register(at32_usarts[id]);
-	return at32_usarts[id];
-}
-
-struct platform_device *atmel_default_console_device;
-
-void __init at32_setup_serial_console(unsigned int usart_id)
-{
-	atmel_default_console_device = at32_usarts[usart_id];
-}
-
-/* --------------------------------------------------------------------
- *  Ethernet
- * -------------------------------------------------------------------- */
-
-static struct eth_platform_data macb0_data;
-static struct resource macb0_resource[] = {
-	PBMEM(0xfff01800),
-	IRQ(25),
-};
-DEFINE_DEV_DATA(macb, 0);
-DEV_CLK(hclk, macb0, hsb, 8);
-DEV_CLK(pclk, macb0, pbb, 6);
-
-static struct eth_platform_data macb1_data;
-static struct resource macb1_resource[] = {
-	PBMEM(0xfff01c00),
-	IRQ(26),
-};
-DEFINE_DEV_DATA(macb, 1);
-DEV_CLK(hclk, macb1, hsb, 9);
-DEV_CLK(pclk, macb1, pbb, 7);
-
-struct platform_device *__init
-at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
-{
-	struct platform_device *pdev;
-
-	switch (id) {
-	case 0:
-		pdev = &macb0_device;
-
-		select_peripheral(PC(3),  PERIPH_A, 0);	/* TXD0	*/
-		select_peripheral(PC(4),  PERIPH_A, 0);	/* TXD1	*/
-		select_peripheral(PC(7),  PERIPH_A, 0);	/* TXEN	*/
-		select_peripheral(PC(8),  PERIPH_A, 0);	/* TXCK */
-		select_peripheral(PC(9),  PERIPH_A, 0);	/* RXD0	*/
-		select_peripheral(PC(10), PERIPH_A, 0);	/* RXD1	*/
-		select_peripheral(PC(13), PERIPH_A, 0);	/* RXER	*/
-		select_peripheral(PC(15), PERIPH_A, 0);	/* RXDV	*/
-		select_peripheral(PC(16), PERIPH_A, 0);	/* MDC	*/
-		select_peripheral(PC(17), PERIPH_A, 0);	/* MDIO	*/
-
-		if (!data->is_rmii) {
-			select_peripheral(PC(0),  PERIPH_A, 0);	/* COL	*/
-			select_peripheral(PC(1),  PERIPH_A, 0);	/* CRS	*/
-			select_peripheral(PC(2),  PERIPH_A, 0);	/* TXER	*/
-			select_peripheral(PC(5),  PERIPH_A, 0);	/* TXD2	*/
-			select_peripheral(PC(6),  PERIPH_A, 0);	/* TXD3 */
-			select_peripheral(PC(11), PERIPH_A, 0);	/* RXD2	*/
-			select_peripheral(PC(12), PERIPH_A, 0);	/* RXD3	*/
-			select_peripheral(PC(14), PERIPH_A, 0);	/* RXCK	*/
-			select_peripheral(PC(18), PERIPH_A, 0);	/* SPD	*/
-		}
-		break;
-
-	case 1:
-		pdev = &macb1_device;
-
-		select_peripheral(PD(13), PERIPH_B, 0);		/* TXD0	*/
-		select_peripheral(PD(14), PERIPH_B, 0);		/* TXD1	*/
-		select_peripheral(PD(11), PERIPH_B, 0);		/* TXEN	*/
-		select_peripheral(PD(12), PERIPH_B, 0);		/* TXCK */
-		select_peripheral(PD(10), PERIPH_B, 0);		/* RXD0	*/
-		select_peripheral(PD(6),  PERIPH_B, 0);		/* RXD1	*/
-		select_peripheral(PD(5),  PERIPH_B, 0);		/* RXER	*/
-		select_peripheral(PD(4),  PERIPH_B, 0);		/* RXDV	*/
-		select_peripheral(PD(3),  PERIPH_B, 0);		/* MDC	*/
-		select_peripheral(PD(2),  PERIPH_B, 0);		/* MDIO	*/
-
-		if (!data->is_rmii) {
-			select_peripheral(PC(19), PERIPH_B, 0);	/* COL	*/
-			select_peripheral(PC(23), PERIPH_B, 0);	/* CRS	*/
-			select_peripheral(PC(26), PERIPH_B, 0);	/* TXER	*/
-			select_peripheral(PC(27), PERIPH_B, 0);	/* TXD2	*/
-			select_peripheral(PC(28), PERIPH_B, 0);	/* TXD3 */
-			select_peripheral(PC(29), PERIPH_B, 0);	/* RXD2	*/
-			select_peripheral(PC(30), PERIPH_B, 0);	/* RXD3	*/
-			select_peripheral(PC(24), PERIPH_B, 0);	/* RXCK	*/
-			select_peripheral(PD(15), PERIPH_B, 0);	/* SPD	*/
-		}
-		break;
-
-	default:
-		return NULL;
-	}
-
-	memcpy(pdev->dev.platform_data, data, sizeof(struct eth_platform_data));
-	platform_device_register(pdev);
-
-	return pdev;
-}
-
-/* --------------------------------------------------------------------
- *  SPI
- * -------------------------------------------------------------------- */
-static struct resource atmel_spi0_resource[] = {
-	PBMEM(0xffe00000),
-	IRQ(3),
-};
-DEFINE_DEV(atmel_spi, 0);
-DEV_CLK(spi_clk, atmel_spi0, pba, 0);
-
-static struct resource atmel_spi1_resource[] = {
-	PBMEM(0xffe00400),
-	IRQ(4),
-};
-DEFINE_DEV(atmel_spi, 1);
-DEV_CLK(spi_clk, atmel_spi1, pba, 1);
-
-static void __init
-at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b,
-		      unsigned int n, const u8 *pins)
-{
-	unsigned int pin, mode;
-
-	for (; n; n--, b++) {
-		b->bus_num = bus_num;
-		if (b->chip_select >= 4)
-			continue;
-		pin = (unsigned)b->controller_data;
-		if (!pin) {
-			pin = pins[b->chip_select];
-			b->controller_data = (void *)pin;
-		}
-		mode = AT32_GPIOF_OUTPUT;
-		if (!(b->mode & SPI_CS_HIGH))
-			mode |= AT32_GPIOF_HIGH;
-		at32_select_gpio(pin, mode);
-	}
-}
-
-struct platform_device *__init
-at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n)
-{
-	/*
-	 * Manage the chipselects as GPIOs, normally using the same pins
-	 * the SPI controller expects; but boards can use other pins.
-	 */
-	static u8 __initdata spi0_pins[] =
-		{ GPIO_PIN_PA(3), GPIO_PIN_PA(4),
-		  GPIO_PIN_PA(5), GPIO_PIN_PA(20), };
-	static u8 __initdata spi1_pins[] =
-		{ GPIO_PIN_PB(2), GPIO_PIN_PB(3),
-		  GPIO_PIN_PB(4), GPIO_PIN_PA(27), };
-	struct platform_device *pdev;
-
-	switch (id) {
-	case 0:
-		pdev = &atmel_spi0_device;
-		select_peripheral(PA(0),  PERIPH_A, 0);	/* MISO	 */
-		select_peripheral(PA(1),  PERIPH_A, 0);	/* MOSI	 */
-		select_peripheral(PA(2),  PERIPH_A, 0);	/* SCK	 */
-		at32_spi_setup_slaves(0, b, n, spi0_pins);
-		break;
-
-	case 1:
-		pdev = &atmel_spi1_device;
-		select_peripheral(PB(0),  PERIPH_B, 0);	/* MISO  */
-		select_peripheral(PB(1),  PERIPH_B, 0);	/* MOSI  */
-		select_peripheral(PB(5),  PERIPH_B, 0);	/* SCK   */
-		at32_spi_setup_slaves(1, b, n, spi1_pins);
-		break;
-
-	default:
-		return NULL;
-	}
-
-	spi_register_board_info(b, n);
-	platform_device_register(pdev);
-	return pdev;
-}
-
-/* --------------------------------------------------------------------
- *  TWI
- * -------------------------------------------------------------------- */
-static struct resource atmel_twi0_resource[] __initdata = {
-	PBMEM(0xffe00800),
-	IRQ(5),
-};
-static struct clk atmel_twi0_pclk = {
-	.name		= "twi_pclk",
-	.parent		= &pba_clk,
-	.mode		= pba_clk_mode,
-	.get_rate	= pba_clk_get_rate,
-	.index		= 2,
-};
-
-struct platform_device *__init at32_add_device_twi(unsigned int id)
-{
-	struct platform_device *pdev;
-
-	if (id != 0)
-		return NULL;
-
-	pdev = platform_device_alloc("atmel_twi", id);
-	if (!pdev)
-		return NULL;
-
-	if (platform_device_add_resources(pdev, atmel_twi0_resource,
-				ARRAY_SIZE(atmel_twi0_resource)))
-		goto err_add_resources;
-
-	select_peripheral(PA(6),  PERIPH_A, 0);	/* SDA	*/
-	select_peripheral(PA(7),  PERIPH_A, 0);	/* SDL	*/
-
-	atmel_twi0_pclk.dev = &pdev->dev;
-
-	platform_device_add(pdev);
-	return pdev;
-
-err_add_resources:
-	platform_device_put(pdev);
-	return NULL;
-}
-
-/* --------------------------------------------------------------------
- * MMC
- * -------------------------------------------------------------------- */
-static struct resource atmel_mci0_resource[] __initdata = {
-	PBMEM(0xfff02400),
-	IRQ(28),
-};
-static struct clk atmel_mci0_pclk = {
-	.name		= "mci_clk",
-	.parent		= &pbb_clk,
-	.mode		= pbb_clk_mode,
-	.get_rate	= pbb_clk_get_rate,
-	.index		= 9,
-};
-
-struct platform_device *__init at32_add_device_mci(unsigned int id)
-{
-	struct platform_device *pdev;
-
-	if (id != 0)
-		return NULL;
-
-	pdev = platform_device_alloc("atmel_mci", id);
-	if (!pdev)
-		return NULL;
-
-	if (platform_device_add_resources(pdev, atmel_mci0_resource,
-				ARRAY_SIZE(atmel_mci0_resource)))
-		goto err_add_resources;
-
-	select_peripheral(PA(10), PERIPH_A, 0);	/* CLK	 */
-	select_peripheral(PA(11), PERIPH_A, 0);	/* CMD	 */
-	select_peripheral(PA(12), PERIPH_A, 0);	/* DATA0 */
-	select_peripheral(PA(13), PERIPH_A, 0);	/* DATA1 */
-	select_peripheral(PA(14), PERIPH_A, 0);	/* DATA2 */
-	select_peripheral(PA(15), PERIPH_A, 0);	/* DATA3 */
-
-	atmel_mci0_pclk.dev = &pdev->dev;
-
-	platform_device_add(pdev);
-	return pdev;
-
-err_add_resources:
-	platform_device_put(pdev);
-	return NULL;
-}
-
-/* --------------------------------------------------------------------
- *  LCDC
- * -------------------------------------------------------------------- */
-static struct atmel_lcdfb_info atmel_lcdfb0_data;
-static struct resource atmel_lcdfb0_resource[] = {
-	{
-		.start		= 0xff000000,
-		.end		= 0xff000fff,
-		.flags		= IORESOURCE_MEM,
-	},
-	IRQ(1),
-	{
-		/* Placeholder for pre-allocated fb memory */
-		.start		= 0x00000000,
-		.end		= 0x00000000,
-		.flags		= 0,
-	},
-};
-DEFINE_DEV_DATA(atmel_lcdfb, 0);
-DEV_CLK(hck1, atmel_lcdfb0, hsb, 7);
-static struct clk atmel_lcdfb0_pixclk = {
-	.name		= "lcdc_clk",
-	.dev		= &atmel_lcdfb0_device.dev,
-	.mode		= genclk_mode,
-	.get_rate	= genclk_get_rate,
-	.set_rate	= genclk_set_rate,
-	.set_parent	= genclk_set_parent,
-	.index		= 7,
-};
-
-struct platform_device *__init
-at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
-		     unsigned long fbmem_start, unsigned long fbmem_len)
-{
-	struct platform_device *pdev;
-	struct atmel_lcdfb_info *info;
-	struct fb_monspecs *monspecs;
-	struct fb_videomode *modedb;
-	unsigned int modedb_size;
-
-	/*
-	 * Do a deep copy of the fb data, monspecs and modedb. Make
-	 * sure all allocations are done before setting up the
-	 * portmux.
-	 */
-	monspecs = kmemdup(data->default_monspecs,
-			   sizeof(struct fb_monspecs), GFP_KERNEL);
-	if (!monspecs)
-		return NULL;
-
-	modedb_size = sizeof(struct fb_videomode) * monspecs->modedb_len;
-	modedb = kmemdup(monspecs->modedb, modedb_size, GFP_KERNEL);
-	if (!modedb)
-		goto err_dup_modedb;
-	monspecs->modedb = modedb;
-
-	switch (id) {
-	case 0:
-		pdev = &atmel_lcdfb0_device;
-		select_peripheral(PC(19), PERIPH_A, 0);	/* CC	  */
-		select_peripheral(PC(20), PERIPH_A, 0);	/* HSYNC  */
-		select_peripheral(PC(21), PERIPH_A, 0);	/* PCLK	  */
-		select_peripheral(PC(22), PERIPH_A, 0);	/* VSYNC  */
-		select_peripheral(PC(23), PERIPH_A, 0);	/* DVAL	  */
-		select_peripheral(PC(24), PERIPH_A, 0);	/* MODE	  */
-		select_peripheral(PC(25), PERIPH_A, 0);	/* PWR	  */
-		select_peripheral(PC(26), PERIPH_A, 0);	/* DATA0  */
-		select_peripheral(PC(27), PERIPH_A, 0);	/* DATA1  */
-		select_peripheral(PC(28), PERIPH_A, 0);	/* DATA2  */
-		select_peripheral(PC(29), PERIPH_A, 0);	/* DATA3  */
-		select_peripheral(PC(30), PERIPH_A, 0);	/* DATA4  */
-		select_peripheral(PC(31), PERIPH_A, 0);	/* DATA5  */
-		select_peripheral(PD(0),  PERIPH_A, 0);	/* DATA6  */
-		select_peripheral(PD(1),  PERIPH_A, 0);	/* DATA7  */
-		select_peripheral(PD(2),  PERIPH_A, 0);	/* DATA8  */
-		select_peripheral(PD(3),  PERIPH_A, 0);	/* DATA9  */
-		select_peripheral(PD(4),  PERIPH_A, 0);	/* DATA10 */
-		select_peripheral(PD(5),  PERIPH_A, 0);	/* DATA11 */
-		select_peripheral(PD(6),  PERIPH_A, 0);	/* DATA12 */
-		select_peripheral(PD(7),  PERIPH_A, 0);	/* DATA13 */
-		select_peripheral(PD(8),  PERIPH_A, 0);	/* DATA14 */
-		select_peripheral(PD(9),  PERIPH_A, 0);	/* DATA15 */
-		select_peripheral(PD(10), PERIPH_A, 0);	/* DATA16 */
-		select_peripheral(PD(11), PERIPH_A, 0);	/* DATA17 */
-		select_peripheral(PD(12), PERIPH_A, 0);	/* DATA18 */
-		select_peripheral(PD(13), PERIPH_A, 0);	/* DATA19 */
-		select_peripheral(PD(14), PERIPH_A, 0);	/* DATA20 */
-		select_peripheral(PD(15), PERIPH_A, 0);	/* DATA21 */
-		select_peripheral(PD(16), PERIPH_A, 0);	/* DATA22 */
-		select_peripheral(PD(17), PERIPH_A, 0);	/* DATA23 */
-
-		clk_set_parent(&atmel_lcdfb0_pixclk, &pll0);
-		clk_set_rate(&atmel_lcdfb0_pixclk, clk_get_rate(&pll0));
-		break;
-
-	default:
-		goto err_invalid_id;
-	}
-
-	if (fbmem_len) {
-		pdev->resource[2].start = fbmem_start;
-		pdev->resource[2].end = fbmem_start + fbmem_len - 1;
-		pdev->resource[2].flags = IORESOURCE_MEM;
-	}
-
-	info = pdev->dev.platform_data;
-	memcpy(info, data, sizeof(struct atmel_lcdfb_info));
-	info->default_monspecs = monspecs;
-
-	platform_device_register(pdev);
-	return pdev;
-
-err_invalid_id:
-	kfree(modedb);
-err_dup_modedb:
-	kfree(monspecs);
-	return NULL;
-}
-
-/* --------------------------------------------------------------------
- *  SSC
- * -------------------------------------------------------------------- */
-static struct resource ssc0_resource[] = {
-	PBMEM(0xffe01c00),
-	IRQ(10),
-};
-DEFINE_DEV(ssc, 0);
-DEV_CLK(pclk, ssc0, pba, 7);
-
-static struct resource ssc1_resource[] = {
-	PBMEM(0xffe02000),
-	IRQ(11),
-};
-DEFINE_DEV(ssc, 1);
-DEV_CLK(pclk, ssc1, pba, 8);
-
-static struct resource ssc2_resource[] = {
-	PBMEM(0xffe02400),
-	IRQ(12),
-};
-DEFINE_DEV(ssc, 2);
-DEV_CLK(pclk, ssc2, pba, 9);
-
-struct platform_device *__init
-at32_add_device_ssc(unsigned int id, unsigned int flags)
-{
-	struct platform_device *pdev;
-
-	switch (id) {
-	case 0:
-		pdev = &ssc0_device;
-		if (flags & ATMEL_SSC_RF)
-			select_peripheral(PA(21), PERIPH_A, 0);	/* RF */
-		if (flags & ATMEL_SSC_RK)
-			select_peripheral(PA(22), PERIPH_A, 0);	/* RK */
-		if (flags & ATMEL_SSC_TK)
-			select_peripheral(PA(23), PERIPH_A, 0);	/* TK */
-		if (flags & ATMEL_SSC_TF)
-			select_peripheral(PA(24), PERIPH_A, 0);	/* TF */
-		if (flags & ATMEL_SSC_TD)
-			select_peripheral(PA(25), PERIPH_A, 0);	/* TD */
-		if (flags & ATMEL_SSC_RD)
-			select_peripheral(PA(26), PERIPH_A, 0);	/* RD */
-		break;
-	case 1:
-		pdev = &ssc1_device;
-		if (flags & ATMEL_SSC_RF)
-			select_peripheral(PA(0), PERIPH_B, 0);	/* RF */
-		if (flags & ATMEL_SSC_RK)
-			select_peripheral(PA(1), PERIPH_B, 0);	/* RK */
-		if (flags & ATMEL_SSC_TK)
-			select_peripheral(PA(2), PERIPH_B, 0);	/* TK */
-		if (flags & ATMEL_SSC_TF)
-			select_peripheral(PA(3), PERIPH_B, 0);	/* TF */
-		if (flags & ATMEL_SSC_TD)
-			select_peripheral(PA(4), PERIPH_B, 0);	/* TD */
-		if (flags & ATMEL_SSC_RD)
-			select_peripheral(PA(5), PERIPH_B, 0);	/* RD */
-		break;
-	case 2:
-		pdev = &ssc2_device;
-		if (flags & ATMEL_SSC_TD)
-			select_peripheral(PB(13), PERIPH_A, 0);	/* TD */
-		if (flags & ATMEL_SSC_RD)
-			select_peripheral(PB(14), PERIPH_A, 0);	/* RD */
-		if (flags & ATMEL_SSC_TK)
-			select_peripheral(PB(15), PERIPH_A, 0);	/* TK */
-		if (flags & ATMEL_SSC_TF)
-			select_peripheral(PB(16), PERIPH_A, 0);	/* TF */
-		if (flags & ATMEL_SSC_RF)
-			select_peripheral(PB(17), PERIPH_A, 0);	/* RF */
-		if (flags & ATMEL_SSC_RK)
-			select_peripheral(PB(18), PERIPH_A, 0);	/* RK */
-		break;
-	default:
-		return NULL;
-	}
-
-	platform_device_register(pdev);
-	return pdev;
-}
-
-/* --------------------------------------------------------------------
- *  USB Device Controller
- * -------------------------------------------------------------------- */
-static struct resource usba0_resource[] __initdata = {
-	{
-		.start		= 0xff300000,
-		.end		= 0xff3fffff,
-		.flags		= IORESOURCE_MEM,
-	}, {
-		.start		= 0xfff03000,
-		.end		= 0xfff033ff,
-		.flags		= IORESOURCE_MEM,
-	},
-	IRQ(31),
-};
-static struct clk usba0_pclk = {
-	.name		= "pclk",
-	.parent		= &pbb_clk,
-	.mode		= pbb_clk_mode,
-	.get_rate	= pbb_clk_get_rate,
-	.index		= 12,
-};
-static struct clk usba0_hclk = {
-	.name		= "hclk",
-	.parent		= &hsb_clk,
-	.mode		= hsb_clk_mode,
-	.get_rate	= hsb_clk_get_rate,
-	.index		= 6,
-};
-
-struct platform_device *__init
-at32_add_device_usba(unsigned int id, struct usba_platform_data *data)
-{
-	struct platform_device *pdev;
-
-	if (id != 0)
-		return NULL;
-
-	pdev = platform_device_alloc("atmel_usba_udc", 0);
-	if (!pdev)
-		return NULL;
-
-	if (platform_device_add_resources(pdev, usba0_resource,
-					  ARRAY_SIZE(usba0_resource)))
-		goto out_free_pdev;
-
-	if (data) {
-		if (platform_device_add_data(pdev, data, sizeof(*data)))
-			goto out_free_pdev;
-
-		if (data->vbus_pin != GPIO_PIN_NONE)
-			at32_select_gpio(data->vbus_pin, 0);
-	}
-
-	usba0_pclk.dev = &pdev->dev;
-	usba0_hclk.dev = &pdev->dev;
-
-	platform_device_add(pdev);
-
-	return pdev;
-
-out_free_pdev:
-	platform_device_put(pdev);
-	return NULL;
-}
-
-/* --------------------------------------------------------------------
- * IDE / CompactFlash
- * -------------------------------------------------------------------- */
-static struct resource at32_smc_cs4_resource[] __initdata = {
-	{
-		.start	= 0x04000000,
-		.end	= 0x07ffffff,
-		.flags	= IORESOURCE_MEM,
-	},
-	IRQ(~0UL), /* Magic IRQ will be overridden */
-};
-static struct resource at32_smc_cs5_resource[] __initdata = {
-	{
-		.start	= 0x20000000,
-		.end	= 0x23ffffff,
-		.flags	= IORESOURCE_MEM,
-	},
-	IRQ(~0UL), /* Magic IRQ will be overridden */
-};
-
-static int __init at32_init_ide_or_cf(struct platform_device *pdev,
-		unsigned int cs, unsigned int extint)
-{
-	static unsigned int extint_pin_map[4] __initdata = {
-		GPIO_PIN_PB(25),
-		GPIO_PIN_PB(26),
-		GPIO_PIN_PB(27),
-		GPIO_PIN_PB(28),
-	};
-	static bool common_pins_initialized __initdata = false;
-	unsigned int extint_pin;
-	int ret;
-
-	if (extint >= ARRAY_SIZE(extint_pin_map))
-		return -EINVAL;
-	extint_pin = extint_pin_map[extint];
-
-	switch (cs) {
-	case 4:
-		ret = platform_device_add_resources(pdev,
-				at32_smc_cs4_resource,
-				ARRAY_SIZE(at32_smc_cs4_resource));
-		if (ret)
-			return ret;
-
-		select_peripheral(PE(21), PERIPH_A, 0); /* NCS4   -> OE_N  */
-		set_ebi_sfr_bits(HMATRIX_BIT(CS4A));
-		break;
-	case 5:
-		ret = platform_device_add_resources(pdev,
-				at32_smc_cs5_resource,
-				ARRAY_SIZE(at32_smc_cs5_resource));
-		if (ret)
-			return ret;
-
-		select_peripheral(PE(22), PERIPH_A, 0); /* NCS5   -> OE_N  */
-		set_ebi_sfr_bits(HMATRIX_BIT(CS5A));
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	if (!common_pins_initialized) {
-		select_peripheral(PE(19), PERIPH_A, 0);	/* CFCE1  -> CS0_N */
-		select_peripheral(PE(20), PERIPH_A, 0);	/* CFCE2  -> CS1_N */
-		select_peripheral(PE(23), PERIPH_A, 0); /* CFRNW  -> DIR   */
-		select_peripheral(PE(24), PERIPH_A, 0); /* NWAIT  <- IORDY */
-		common_pins_initialized = true;
-	}
-
-	at32_select_periph(extint_pin, GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
-
-	pdev->resource[1].start = EIM_IRQ_BASE + extint;
-	pdev->resource[1].end = pdev->resource[1].start;
-
-	return 0;
-}
-
-struct platform_device *__init
-at32_add_device_ide(unsigned int id, unsigned int extint,
-		    struct ide_platform_data *data)
-{
-	struct platform_device *pdev;
-
-	pdev = platform_device_alloc("at32_ide", id);
-	if (!pdev)
-		goto fail;
-
-	if (platform_device_add_data(pdev, data,
-				sizeof(struct ide_platform_data)))
-		goto fail;
-
-	if (at32_init_ide_or_cf(pdev, data->cs, extint))
-		goto fail;
-
-	platform_device_add(pdev);
-	return pdev;
-
-fail:
-	platform_device_put(pdev);
-	return NULL;
-}
-
-struct platform_device *__init
-at32_add_device_cf(unsigned int id, unsigned int extint,
-		    struct cf_platform_data *data)
-{
-	struct platform_device *pdev;
-
-	pdev = platform_device_alloc("at32_cf", id);
-	if (!pdev)
-		goto fail;
-
-	if (platform_device_add_data(pdev, data,
-				sizeof(struct cf_platform_data)))
-		goto fail;
-
-	if (at32_init_ide_or_cf(pdev, data->cs, extint))
-		goto fail;
-
-	if (data->detect_pin != GPIO_PIN_NONE)
-		at32_select_gpio(data->detect_pin, AT32_GPIOF_DEGLITCH);
-	if (data->reset_pin != GPIO_PIN_NONE)
-		at32_select_gpio(data->reset_pin, 0);
-	if (data->vcc_pin != GPIO_PIN_NONE)
-		at32_select_gpio(data->vcc_pin, 0);
-	/* READY is used as extint, so we can't select it as gpio */
-
-	platform_device_add(pdev);
-	return pdev;
-
-fail:
-	platform_device_put(pdev);
-	return NULL;
-}
-
-/* --------------------------------------------------------------------
- * AC97C
- * -------------------------------------------------------------------- */
-static struct resource atmel_ac97c0_resource[] __initdata = {
-	PBMEM(0xfff02800),
-	IRQ(29),
-};
-static struct clk atmel_ac97c0_pclk = {
-	.name		= "pclk",
-	.parent		= &pbb_clk,
-	.mode		= pbb_clk_mode,
-	.get_rate	= pbb_clk_get_rate,
-	.index		= 10,
-};
-
-struct platform_device *__init at32_add_device_ac97c(unsigned int id)
-{
-	struct platform_device *pdev;
-
-	if (id != 0)
-		return NULL;
-
-	pdev = platform_device_alloc("atmel_ac97c", id);
-	if (!pdev)
-		return NULL;
-
-	if (platform_device_add_resources(pdev, atmel_ac97c0_resource,
-				ARRAY_SIZE(atmel_ac97c0_resource)))
-		goto err_add_resources;
-
-	select_peripheral(PB(20), PERIPH_B, 0);	/* SYNC	*/
-	select_peripheral(PB(21), PERIPH_B, 0);	/* SDO	*/
-	select_peripheral(PB(22), PERIPH_B, 0);	/* SDI	*/
-	select_peripheral(PB(23), PERIPH_B, 0);	/* SCLK	*/
-
-	atmel_ac97c0_pclk.dev = &pdev->dev;
-
-	platform_device_add(pdev);
-	return pdev;
-
-err_add_resources:
-	platform_device_put(pdev);
-	return NULL;
-}
-
-/* --------------------------------------------------------------------
- * ABDAC
- * -------------------------------------------------------------------- */
-static struct resource abdac0_resource[] __initdata = {
-	PBMEM(0xfff02000),
-	IRQ(27),
-};
-static struct clk abdac0_pclk = {
-	.name		= "pclk",
-	.parent		= &pbb_clk,
-	.mode		= pbb_clk_mode,
-	.get_rate	= pbb_clk_get_rate,
-	.index		= 8,
-};
-static struct clk abdac0_sample_clk = {
-	.name		= "sample_clk",
-	.mode		= genclk_mode,
-	.get_rate	= genclk_get_rate,
-	.set_rate	= genclk_set_rate,
-	.set_parent	= genclk_set_parent,
-	.index		= 6,
-};
-
-struct platform_device *__init at32_add_device_abdac(unsigned int id)
-{
-	struct platform_device *pdev;
-
-	if (id != 0)
-		return NULL;
-
-	pdev = platform_device_alloc("abdac", id);
-	if (!pdev)
-		return NULL;
-
-	if (platform_device_add_resources(pdev, abdac0_resource,
-				ARRAY_SIZE(abdac0_resource)))
-		goto err_add_resources;
-
-	select_peripheral(PB(20), PERIPH_A, 0);	/* DATA1	*/
-	select_peripheral(PB(21), PERIPH_A, 0);	/* DATA0	*/
-	select_peripheral(PB(22), PERIPH_A, 0);	/* DATAN1	*/
-	select_peripheral(PB(23), PERIPH_A, 0);	/* DATAN0	*/
-
-	abdac0_pclk.dev = &pdev->dev;
-	abdac0_sample_clk.dev = &pdev->dev;
-
-	platform_device_add(pdev);
-	return pdev;
-
-err_add_resources:
-	platform_device_put(pdev);
-	return NULL;
-}
-
-/* --------------------------------------------------------------------
- *  GCLK
- * -------------------------------------------------------------------- */
-static struct clk gclk0 = {
-	.name		= "gclk0",
-	.mode		= genclk_mode,
-	.get_rate	= genclk_get_rate,
-	.set_rate	= genclk_set_rate,
-	.set_parent	= genclk_set_parent,
-	.index		= 0,
-};
-static struct clk gclk1 = {
-	.name		= "gclk1",
-	.mode		= genclk_mode,
-	.get_rate	= genclk_get_rate,
-	.set_rate	= genclk_set_rate,
-	.set_parent	= genclk_set_parent,
-	.index		= 1,
-};
-static struct clk gclk2 = {
-	.name		= "gclk2",
-	.mode		= genclk_mode,
-	.get_rate	= genclk_get_rate,
-	.set_rate	= genclk_set_rate,
-	.set_parent	= genclk_set_parent,
-	.index		= 2,
-};
-static struct clk gclk3 = {
-	.name		= "gclk3",
-	.mode		= genclk_mode,
-	.get_rate	= genclk_get_rate,
-	.set_rate	= genclk_set_rate,
-	.set_parent	= genclk_set_parent,
-	.index		= 3,
-};
-static struct clk gclk4 = {
-	.name		= "gclk4",
-	.mode		= genclk_mode,
-	.get_rate	= genclk_get_rate,
-	.set_rate	= genclk_set_rate,
-	.set_parent	= genclk_set_parent,
-	.index		= 4,
-};
-
-struct clk *at32_clock_list[] = {
-	&osc32k,
-	&osc0,
-	&osc1,
-	&pll0,
-	&pll1,
-	&cpu_clk,
-	&hsb_clk,
-	&pba_clk,
-	&pbb_clk,
-	&at32_pm_pclk,
-	&at32_intc0_pclk,
-	&hmatrix_clk,
-	&ebi_clk,
-	&hramc_clk,
-	&smc0_pclk,
-	&smc0_mck,
-	&pdc_hclk,
-	&pdc_pclk,
-	&dmaca0_hclk,
-	&pico_clk,
-	&pio0_mck,
-	&pio1_mck,
-	&pio2_mck,
-	&pio3_mck,
-	&pio4_mck,
-	&at32_systc0_pclk,
-	&atmel_usart0_usart,
-	&atmel_usart1_usart,
-	&atmel_usart2_usart,
-	&atmel_usart3_usart,
-	&macb0_hclk,
-	&macb0_pclk,
-	&macb1_hclk,
-	&macb1_pclk,
-	&atmel_spi0_spi_clk,
-	&atmel_spi1_spi_clk,
-	&atmel_twi0_pclk,
-	&atmel_mci0_pclk,
-	&atmel_lcdfb0_hck1,
-	&atmel_lcdfb0_pixclk,
-	&ssc0_pclk,
-	&ssc1_pclk,
-	&ssc2_pclk,
-	&usba0_hclk,
-	&usba0_pclk,
-	&atmel_ac97c0_pclk,
-	&abdac0_pclk,
-	&abdac0_sample_clk,
-	&gclk0,
-	&gclk1,
-	&gclk2,
-	&gclk3,
-	&gclk4,
-};
-unsigned int at32_nr_clocks = ARRAY_SIZE(at32_clock_list);
-
-void __init at32_portmux_init(void)
-{
-	at32_init_pio(&pio0_device);
-	at32_init_pio(&pio1_device);
-	at32_init_pio(&pio2_device);
-	at32_init_pio(&pio3_device);
-	at32_init_pio(&pio4_device);
-}
-
-void __init at32_clock_init(void)
-{
-	u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0;
-	int i;
-
-	if (pm_readl(MCCTRL) & PM_BIT(PLLSEL)) {
-		main_clock = &pll0;
-		cpu_clk.parent = &pll0;
-	} else {
-		main_clock = &osc0;
-		cpu_clk.parent = &osc0;
-	}
-
-	if (pm_readl(PLL0) & PM_BIT(PLLOSC))
-		pll0.parent = &osc1;
-	if (pm_readl(PLL1) & PM_BIT(PLLOSC))
-		pll1.parent = &osc1;
-
-	genclk_init_parent(&gclk0);
-	genclk_init_parent(&gclk1);
-	genclk_init_parent(&gclk2);
-	genclk_init_parent(&gclk3);
-	genclk_init_parent(&gclk4);
-	genclk_init_parent(&atmel_lcdfb0_pixclk);
-	genclk_init_parent(&abdac0_sample_clk);
-
-	/*
-	 * Turn on all clocks that have at least one user already, and
-	 * turn off everything else. We only do this for module
-	 * clocks, and even though it isn't particularly pretty to
-	 * check the address of the mode function, it should do the
-	 * trick...
-	 */
-	for (i = 0; i < ARRAY_SIZE(at32_clock_list); i++) {
-		struct clk *clk = at32_clock_list[i];
-
-		if (clk->users == 0)
-			continue;
-
-		if (clk->mode == &cpu_clk_mode)
-			cpu_mask |= 1 << clk->index;
-		else if (clk->mode == &hsb_clk_mode)
-			hsb_mask |= 1 << clk->index;
-		else if (clk->mode == &pba_clk_mode)
-			pba_mask |= 1 << clk->index;
-		else if (clk->mode == &pbb_clk_mode)
-			pbb_mask |= 1 << clk->index;
-	}
-
-	pm_writel(CPU_MASK, cpu_mask);
-	pm_writel(HSB_MASK, hsb_mask);
-	pm_writel(PBA_MASK, pba_mask);
-	pm_writel(PBB_MASK, pbb_mask);
-}
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
new file mode 100644
index 000000000000..9386e1f82fb8
--- /dev/null
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -0,0 +1,1742 @@
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/clk.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/spi/spi.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/at32ap700x.h>
+#include <asm/arch/board.h>
+#include <asm/arch/portmux.h>
+
+#include <video/atmel_lcdc.h>
+
+#include "clock.h"
+#include "hmatrix.h"
+#include "pio.h"
+#include "pm.h"
+
+
+#define PBMEM(base)					\
+	{						\
+		.start		= base,			\
+		.end		= base + 0x3ff,		\
+		.flags		= IORESOURCE_MEM,	\
+	}
+#define IRQ(num)					\
+	{						\
+		.start		= num,			\
+		.end		= num,			\
+		.flags		= IORESOURCE_IRQ,	\
+	}
+#define NAMED_IRQ(num, _name)				\
+	{						\
+		.start		= num,			\
+		.end		= num,			\
+		.name		= _name,		\
+		.flags		= IORESOURCE_IRQ,	\
+	}
+
+/* REVISIT these assume *every* device supports DMA, but several
+ * don't ... tc, smc, pio, rtc, watchdog, pwm, ps2, and more.
+ */
+#define DEFINE_DEV(_name, _id)					\
+static u64 _name##_id##_dma_mask = DMA_32BIT_MASK;		\
+static struct platform_device _name##_id##_device = {		\
+	.name		= #_name,				\
+	.id		= _id,					\
+	.dev		= {					\
+		.dma_mask = &_name##_id##_dma_mask,		\
+		.coherent_dma_mask = DMA_32BIT_MASK,		\
+	},							\
+	.resource	= _name##_id##_resource,		\
+	.num_resources	= ARRAY_SIZE(_name##_id##_resource),	\
+}
+#define DEFINE_DEV_DATA(_name, _id)				\
+static u64 _name##_id##_dma_mask = DMA_32BIT_MASK;		\
+static struct platform_device _name##_id##_device = {		\
+	.name		= #_name,				\
+	.id		= _id,					\
+	.dev		= {					\
+		.dma_mask = &_name##_id##_dma_mask,		\
+		.platform_data	= &_name##_id##_data,		\
+		.coherent_dma_mask = DMA_32BIT_MASK,		\
+	},							\
+	.resource	= _name##_id##_resource,		\
+	.num_resources	= ARRAY_SIZE(_name##_id##_resource),	\
+}
+
+#define select_peripheral(pin, periph, flags)			\
+	at32_select_periph(GPIO_PIN_##pin, GPIO_##periph, flags)
+
+#define DEV_CLK(_name, devname, bus, _index)			\
+static struct clk devname##_##_name = {				\
+	.name		= #_name,				\
+	.dev		= &devname##_device.dev,		\
+	.parent		= &bus##_clk,				\
+	.mode		= bus##_clk_mode,			\
+	.get_rate	= bus##_clk_get_rate,			\
+	.index		= _index,				\
+}
+
+static DEFINE_SPINLOCK(pm_lock);
+
+unsigned long at32ap7000_osc_rates[3] = {
+	[0] = 32768,
+	/* FIXME: these are ATSTK1002-specific */
+	[1] = 20000000,
+	[2] = 12000000,
+};
+
+static unsigned long osc_get_rate(struct clk *clk)
+{
+	return at32ap7000_osc_rates[clk->index];
+}
+
+static unsigned long pll_get_rate(struct clk *clk, unsigned long control)
+{
+	unsigned long div, mul, rate;
+
+	if (!(control & PM_BIT(PLLEN)))
+		return 0;
+
+	div = PM_BFEXT(PLLDIV, control) + 1;
+	mul = PM_BFEXT(PLLMUL, control) + 1;
+
+	rate = clk->parent->get_rate(clk->parent);
+	rate = (rate + div / 2) / div;
+	rate *= mul;
+
+	return rate;
+}
+
+static unsigned long pll0_get_rate(struct clk *clk)
+{
+	u32 control;
+
+	control = pm_readl(PLL0);
+
+	return pll_get_rate(clk, control);
+}
+
+static unsigned long pll1_get_rate(struct clk *clk)
+{
+	u32 control;
+
+	control = pm_readl(PLL1);
+
+	return pll_get_rate(clk, control);
+}
+
+/*
+ * The AT32AP7000 has five primary clock sources: One 32kHz
+ * oscillator, two crystal oscillators and two PLLs.
+ */
+static struct clk osc32k = {
+	.name		= "osc32k",
+	.get_rate	= osc_get_rate,
+	.users		= 1,
+	.index		= 0,
+};
+static struct clk osc0 = {
+	.name		= "osc0",
+	.get_rate	= osc_get_rate,
+	.users		= 1,
+	.index		= 1,
+};
+static struct clk osc1 = {
+	.name		= "osc1",
+	.get_rate	= osc_get_rate,
+	.index		= 2,
+};
+static struct clk pll0 = {
+	.name		= "pll0",
+	.get_rate	= pll0_get_rate,
+	.parent		= &osc0,
+};
+static struct clk pll1 = {
+	.name		= "pll1",
+	.get_rate	= pll1_get_rate,
+	.parent		= &osc0,
+};
+
+/*
+ * The main clock can be either osc0 or pll0.  The boot loader may
+ * have chosen one for us, so we don't really know which one until we
+ * have a look at the SM.
+ */
+static struct clk *main_clock;
+
+/*
+ * Synchronous clocks are generated from the main clock. The clocks
+ * must satisfy the constraint
+ *   fCPU >= fHSB >= fPB
+ * i.e. each clock must not be faster than its parent.
+ */
+static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift)
+{
+	return main_clock->get_rate(main_clock) >> shift;
+};
+
+static void cpu_clk_mode(struct clk *clk, int enabled)
+{
+	unsigned long flags;
+	u32 mask;
+
+	spin_lock_irqsave(&pm_lock, flags);
+	mask = pm_readl(CPU_MASK);
+	if (enabled)
+		mask |= 1 << clk->index;
+	else
+		mask &= ~(1 << clk->index);
+	pm_writel(CPU_MASK, mask);
+	spin_unlock_irqrestore(&pm_lock, flags);
+}
+
+static unsigned long cpu_clk_get_rate(struct clk *clk)
+{
+	unsigned long cksel, shift = 0;
+
+	cksel = pm_readl(CKSEL);
+	if (cksel & PM_BIT(CPUDIV))
+		shift = PM_BFEXT(CPUSEL, cksel) + 1;
+
+	return bus_clk_get_rate(clk, shift);
+}
+
+static long cpu_clk_set_rate(struct clk *clk, unsigned long rate, int apply)
+{
+	u32 control;
+	unsigned long parent_rate, child_div, actual_rate, div;
+
+	parent_rate = clk->parent->get_rate(clk->parent);
+	control = pm_readl(CKSEL);
+
+	if (control & PM_BIT(HSBDIV))
+		child_div = 1 << (PM_BFEXT(HSBSEL, control) + 1);
+	else
+		child_div = 1;
+
+	if (rate > 3 * (parent_rate / 4) || child_div == 1) {
+		actual_rate = parent_rate;
+		control &= ~PM_BIT(CPUDIV);
+	} else {
+		unsigned int cpusel;
+		div = (parent_rate + rate / 2) / rate;
+		if (div > child_div)
+			div = child_div;
+		cpusel = (div > 1) ? (fls(div) - 2) : 0;
+		control = PM_BIT(CPUDIV) | PM_BFINS(CPUSEL, cpusel, control);
+		actual_rate = parent_rate / (1 << (cpusel + 1));
+	}
+
+	pr_debug("clk %s: new rate %lu (actual rate %lu)\n",
+			clk->name, rate, actual_rate);
+
+	if (apply)
+		pm_writel(CKSEL, control);
+
+	return actual_rate;
+}
+
+static void hsb_clk_mode(struct clk *clk, int enabled)
+{
+	unsigned long flags;
+	u32 mask;
+
+	spin_lock_irqsave(&pm_lock, flags);
+	mask = pm_readl(HSB_MASK);
+	if (enabled)
+		mask |= 1 << clk->index;
+	else
+		mask &= ~(1 << clk->index);
+	pm_writel(HSB_MASK, mask);
+	spin_unlock_irqrestore(&pm_lock, flags);
+}
+
+static unsigned long hsb_clk_get_rate(struct clk *clk)
+{
+	unsigned long cksel, shift = 0;
+
+	cksel = pm_readl(CKSEL);
+	if (cksel & PM_BIT(HSBDIV))
+		shift = PM_BFEXT(HSBSEL, cksel) + 1;
+
+	return bus_clk_get_rate(clk, shift);
+}
+
+static void pba_clk_mode(struct clk *clk, int enabled)
+{
+	unsigned long flags;
+	u32 mask;
+
+	spin_lock_irqsave(&pm_lock, flags);
+	mask = pm_readl(PBA_MASK);
+	if (enabled)
+		mask |= 1 << clk->index;
+	else
+		mask &= ~(1 << clk->index);
+	pm_writel(PBA_MASK, mask);
+	spin_unlock_irqrestore(&pm_lock, flags);
+}
+
+static unsigned long pba_clk_get_rate(struct clk *clk)
+{
+	unsigned long cksel, shift = 0;
+
+	cksel = pm_readl(CKSEL);
+	if (cksel & PM_BIT(PBADIV))
+		shift = PM_BFEXT(PBASEL, cksel) + 1;
+
+	return bus_clk_get_rate(clk, shift);
+}
+
+static void pbb_clk_mode(struct clk *clk, int enabled)
+{
+	unsigned long flags;
+	u32 mask;
+
+	spin_lock_irqsave(&pm_lock, flags);
+	mask = pm_readl(PBB_MASK);
+	if (enabled)
+		mask |= 1 << clk->index;
+	else
+		mask &= ~(1 << clk->index);
+	pm_writel(PBB_MASK, mask);
+	spin_unlock_irqrestore(&pm_lock, flags);
+}
+
+static unsigned long pbb_clk_get_rate(struct clk *clk)
+{
+	unsigned long cksel, shift = 0;
+
+	cksel = pm_readl(CKSEL);
+	if (cksel & PM_BIT(PBBDIV))
+		shift = PM_BFEXT(PBBSEL, cksel) + 1;
+
+	return bus_clk_get_rate(clk, shift);
+}
+
+static struct clk cpu_clk = {
+	.name		= "cpu",
+	.get_rate	= cpu_clk_get_rate,
+	.set_rate	= cpu_clk_set_rate,
+	.users		= 1,
+};
+static struct clk hsb_clk = {
+	.name		= "hsb",
+	.parent		= &cpu_clk,
+	.get_rate	= hsb_clk_get_rate,
+};
+static struct clk pba_clk = {
+	.name		= "pba",
+	.parent		= &hsb_clk,
+	.mode		= hsb_clk_mode,
+	.get_rate	= pba_clk_get_rate,
+	.index		= 1,
+};
+static struct clk pbb_clk = {
+	.name		= "pbb",
+	.parent		= &hsb_clk,
+	.mode		= hsb_clk_mode,
+	.get_rate	= pbb_clk_get_rate,
+	.users		= 1,
+	.index		= 2,
+};
+
+/* --------------------------------------------------------------------
+ *  Generic Clock operations
+ * -------------------------------------------------------------------- */
+
+static void genclk_mode(struct clk *clk, int enabled)
+{
+	u32 control;
+
+	control = pm_readl(GCCTRL(clk->index));
+	if (enabled)
+		control |= PM_BIT(CEN);
+	else
+		control &= ~PM_BIT(CEN);
+	pm_writel(GCCTRL(clk->index), control);
+}
+
+static unsigned long genclk_get_rate(struct clk *clk)
+{
+	u32 control;
+	unsigned long div = 1;
+
+	control = pm_readl(GCCTRL(clk->index));
+	if (control & PM_BIT(DIVEN))
+		div = 2 * (PM_BFEXT(DIV, control) + 1);
+
+	return clk->parent->get_rate(clk->parent) / div;
+}
+
+static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply)
+{
+	u32 control;
+	unsigned long parent_rate, actual_rate, div;
+
+	parent_rate = clk->parent->get_rate(clk->parent);
+	control = pm_readl(GCCTRL(clk->index));
+
+	if (rate > 3 * parent_rate / 4) {
+		actual_rate = parent_rate;
+		control &= ~PM_BIT(DIVEN);
+	} else {
+		div = (parent_rate + rate) / (2 * rate) - 1;
+		control = PM_BFINS(DIV, div, control) | PM_BIT(DIVEN);
+		actual_rate = parent_rate / (2 * (div + 1));
+	}
+
+	dev_dbg(clk->dev, "clk %s: new rate %lu (actual rate %lu)\n",
+		clk->name, rate, actual_rate);
+
+	if (apply)
+		pm_writel(GCCTRL(clk->index), control);
+
+	return actual_rate;
+}
+
+int genclk_set_parent(struct clk *clk, struct clk *parent)
+{
+	u32 control;
+
+	dev_dbg(clk->dev, "clk %s: new parent %s (was %s)\n",
+		clk->name, parent->name, clk->parent->name);
+
+	control = pm_readl(GCCTRL(clk->index));
+
+	if (parent == &osc1 || parent == &pll1)
+		control |= PM_BIT(OSCSEL);
+	else if (parent == &osc0 || parent == &pll0)
+		control &= ~PM_BIT(OSCSEL);
+	else
+		return -EINVAL;
+
+	if (parent == &pll0 || parent == &pll1)
+		control |= PM_BIT(PLLSEL);
+	else
+		control &= ~PM_BIT(PLLSEL);
+
+	pm_writel(GCCTRL(clk->index), control);
+	clk->parent = parent;
+
+	return 0;
+}
+
+static void __init genclk_init_parent(struct clk *clk)
+{
+	u32 control;
+	struct clk *parent;
+
+	BUG_ON(clk->index > 7);
+
+	control = pm_readl(GCCTRL(clk->index));
+	if (control & PM_BIT(OSCSEL))
+		parent = (control & PM_BIT(PLLSEL)) ? &pll1 : &osc1;
+	else
+		parent = (control & PM_BIT(PLLSEL)) ? &pll0 : &osc0;
+
+	clk->parent = parent;
+}
+
+/* --------------------------------------------------------------------
+ *  System peripherals
+ * -------------------------------------------------------------------- */
+static struct resource at32_pm0_resource[] = {
+	{
+		.start	= 0xfff00000,
+		.end	= 0xfff0007f,
+		.flags	= IORESOURCE_MEM,
+	},
+	IRQ(20),
+};
+
+static struct resource at32ap700x_rtc0_resource[] = {
+	{
+		.start	= 0xfff00080,
+		.end	= 0xfff000af,
+		.flags	= IORESOURCE_MEM,
+	},
+	IRQ(21),
+};
+
+static struct resource at32_wdt0_resource[] = {
+	{
+		.start	= 0xfff000b0,
+		.end	= 0xfff000cf,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct resource at32_eic0_resource[] = {
+	{
+		.start	= 0xfff00100,
+		.end	= 0xfff0013f,
+		.flags	= IORESOURCE_MEM,
+	},
+	IRQ(19),
+};
+
+DEFINE_DEV(at32_pm, 0);
+DEFINE_DEV(at32ap700x_rtc, 0);
+DEFINE_DEV(at32_wdt, 0);
+DEFINE_DEV(at32_eic, 0);
+
+/*
+ * Peripheral clock for PM, RTC, WDT and EIC. PM will ensure that this
+ * is always running.
+ */
+static struct clk at32_pm_pclk = {
+	.name		= "pclk",
+	.dev		= &at32_pm0_device.dev,
+	.parent		= &pbb_clk,
+	.mode		= pbb_clk_mode,
+	.get_rate	= pbb_clk_get_rate,
+	.users		= 1,
+	.index		= 0,
+};
+
+static struct resource intc0_resource[] = {
+	PBMEM(0xfff00400),
+};
+struct platform_device at32_intc0_device = {
+	.name		= "intc",
+	.id		= 0,
+	.resource	= intc0_resource,
+	.num_resources	= ARRAY_SIZE(intc0_resource),
+};
+DEV_CLK(pclk, at32_intc0, pbb, 1);
+
+static struct clk ebi_clk = {
+	.name		= "ebi",
+	.parent		= &hsb_clk,
+	.mode		= hsb_clk_mode,
+	.get_rate	= hsb_clk_get_rate,
+	.users		= 1,
+};
+static struct clk hramc_clk = {
+	.name		= "hramc",
+	.parent		= &hsb_clk,
+	.mode		= hsb_clk_mode,
+	.get_rate	= hsb_clk_get_rate,
+	.users		= 1,
+	.index		= 3,
+};
+
+static struct resource smc0_resource[] = {
+	PBMEM(0xfff03400),
+};
+DEFINE_DEV(smc, 0);
+DEV_CLK(pclk, smc0, pbb, 13);
+DEV_CLK(mck, smc0, hsb, 0);
+
+static struct platform_device pdc_device = {
+	.name		= "pdc",
+	.id		= 0,
+};
+DEV_CLK(hclk, pdc, hsb, 4);
+DEV_CLK(pclk, pdc, pba, 16);
+
+static struct clk pico_clk = {
+	.name		= "pico",
+	.parent		= &cpu_clk,
+	.mode		= cpu_clk_mode,
+	.get_rate	= cpu_clk_get_rate,
+	.users		= 1,
+};
+
+static struct resource dmaca0_resource[] = {
+	{
+		.start	= 0xff200000,
+		.end	= 0xff20ffff,
+		.flags	= IORESOURCE_MEM,
+	},
+	IRQ(2),
+};
+DEFINE_DEV(dmaca, 0);
+DEV_CLK(hclk, dmaca0, hsb, 10);
+
+/* --------------------------------------------------------------------
+ * HMATRIX
+ * -------------------------------------------------------------------- */
+
+static struct clk hmatrix_clk = {
+	.name		= "hmatrix_clk",
+	.parent		= &pbb_clk,
+	.mode		= pbb_clk_mode,
+	.get_rate	= pbb_clk_get_rate,
+	.index		= 2,
+	.users		= 1,
+};
+#define HMATRIX_BASE	((void __iomem *)0xfff00800)
+
+#define hmatrix_readl(reg)					\
+	__raw_readl((HMATRIX_BASE) + HMATRIX_##reg)
+#define hmatrix_writel(reg,value)				\
+	__raw_writel((value), (HMATRIX_BASE) + HMATRIX_##reg)
+
+/*
+ * Set bits in the HMATRIX Special Function Register (SFR) used by the
+ * External Bus Interface (EBI). This can be used to enable special
+ * features like CompactFlash support, NAND Flash support, etc. on
+ * certain chipselects.
+ */
+static inline void set_ebi_sfr_bits(u32 mask)
+{
+	u32 sfr;
+
+	clk_enable(&hmatrix_clk);
+	sfr = hmatrix_readl(SFR4);
+	sfr |= mask;
+	hmatrix_writel(SFR4, sfr);
+	clk_disable(&hmatrix_clk);
+}
+
+/* --------------------------------------------------------------------
+ *  System Timer/Counter (TC)
+ * -------------------------------------------------------------------- */
+static struct resource at32_systc0_resource[] = {
+	PBMEM(0xfff00c00),
+	IRQ(22),
+};
+struct platform_device at32_systc0_device = {
+	.name		= "systc",
+	.id		= 0,
+	.resource	= at32_systc0_resource,
+	.num_resources	= ARRAY_SIZE(at32_systc0_resource),
+};
+DEV_CLK(pclk, at32_systc0, pbb, 3);
+
+/* --------------------------------------------------------------------
+ *  PIO
+ * -------------------------------------------------------------------- */
+
+static struct resource pio0_resource[] = {
+	PBMEM(0xffe02800),
+	IRQ(13),
+};
+DEFINE_DEV(pio, 0);
+DEV_CLK(mck, pio0, pba, 10);
+
+static struct resource pio1_resource[] = {
+	PBMEM(0xffe02c00),
+	IRQ(14),
+};
+DEFINE_DEV(pio, 1);
+DEV_CLK(mck, pio1, pba, 11);
+
+static struct resource pio2_resource[] = {
+	PBMEM(0xffe03000),
+	IRQ(15),
+};
+DEFINE_DEV(pio, 2);
+DEV_CLK(mck, pio2, pba, 12);
+
+static struct resource pio3_resource[] = {
+	PBMEM(0xffe03400),
+	IRQ(16),
+};
+DEFINE_DEV(pio, 3);
+DEV_CLK(mck, pio3, pba, 13);
+
+static struct resource pio4_resource[] = {
+	PBMEM(0xffe03800),
+	IRQ(17),
+};
+DEFINE_DEV(pio, 4);
+DEV_CLK(mck, pio4, pba, 14);
+
+void __init at32_add_system_devices(void)
+{
+	platform_device_register(&at32_pm0_device);
+	platform_device_register(&at32_intc0_device);
+	platform_device_register(&at32ap700x_rtc0_device);
+	platform_device_register(&at32_wdt0_device);
+	platform_device_register(&at32_eic0_device);
+	platform_device_register(&smc0_device);
+	platform_device_register(&pdc_device);
+	platform_device_register(&dmaca0_device);
+
+	platform_device_register(&at32_systc0_device);
+
+	platform_device_register(&pio0_device);
+	platform_device_register(&pio1_device);
+	platform_device_register(&pio2_device);
+	platform_device_register(&pio3_device);
+	platform_device_register(&pio4_device);
+}
+
+/* --------------------------------------------------------------------
+ *  USART
+ * -------------------------------------------------------------------- */
+
+static struct atmel_uart_data atmel_usart0_data = {
+	.use_dma_tx	= 1,
+	.use_dma_rx	= 1,
+};
+static struct resource atmel_usart0_resource[] = {
+	PBMEM(0xffe00c00),
+	IRQ(6),
+};
+DEFINE_DEV_DATA(atmel_usart, 0);
+DEV_CLK(usart, atmel_usart0, pba, 3);
+
+static struct atmel_uart_data atmel_usart1_data = {
+	.use_dma_tx	= 1,
+	.use_dma_rx	= 1,
+};
+static struct resource atmel_usart1_resource[] = {
+	PBMEM(0xffe01000),
+	IRQ(7),
+};
+DEFINE_DEV_DATA(atmel_usart, 1);
+DEV_CLK(usart, atmel_usart1, pba, 4);
+
+static struct atmel_uart_data atmel_usart2_data = {
+	.use_dma_tx	= 1,
+	.use_dma_rx	= 1,
+};
+static struct resource atmel_usart2_resource[] = {
+	PBMEM(0xffe01400),
+	IRQ(8),
+};
+DEFINE_DEV_DATA(atmel_usart, 2);
+DEV_CLK(usart, atmel_usart2, pba, 5);
+
+static struct atmel_uart_data atmel_usart3_data = {
+	.use_dma_tx	= 1,
+	.use_dma_rx	= 1,
+};
+static struct resource atmel_usart3_resource[] = {
+	PBMEM(0xffe01800),
+	IRQ(9),
+};
+DEFINE_DEV_DATA(atmel_usart, 3);
+DEV_CLK(usart, atmel_usart3, pba, 6);
+
+static inline void configure_usart0_pins(void)
+{
+	select_peripheral(PA(8),  PERIPH_B, 0);	/* RXD	*/
+	select_peripheral(PA(9),  PERIPH_B, 0);	/* TXD	*/
+}
+
+static inline void configure_usart1_pins(void)
+{
+	select_peripheral(PA(17), PERIPH_A, 0);	/* RXD	*/
+	select_peripheral(PA(18), PERIPH_A, 0);	/* TXD	*/
+}
+
+static inline void configure_usart2_pins(void)
+{
+	select_peripheral(PB(26), PERIPH_B, 0);	/* RXD	*/
+	select_peripheral(PB(27), PERIPH_B, 0);	/* TXD	*/
+}
+
+static inline void configure_usart3_pins(void)
+{
+	select_peripheral(PB(18), PERIPH_B, 0);	/* RXD	*/
+	select_peripheral(PB(17), PERIPH_B, 0);	/* TXD	*/
+}
+
+static struct platform_device *__initdata at32_usarts[4];
+
+void __init at32_map_usart(unsigned int hw_id, unsigned int line)
+{
+	struct platform_device *pdev;
+
+	switch (hw_id) {
+	case 0:
+		pdev = &atmel_usart0_device;
+		configure_usart0_pins();
+		break;
+	case 1:
+		pdev = &atmel_usart1_device;
+		configure_usart1_pins();
+		break;
+	case 2:
+		pdev = &atmel_usart2_device;
+		configure_usart2_pins();
+		break;
+	case 3:
+		pdev = &atmel_usart3_device;
+		configure_usart3_pins();
+		break;
+	default:
+		return;
+	}
+
+	if (PXSEG(pdev->resource[0].start) == P4SEG) {
+		/* Addresses in the P4 segment are permanently mapped 1:1 */
+		struct atmel_uart_data *data = pdev->dev.platform_data;
+		data->regs = (void __iomem *)pdev->resource[0].start;
+	}
+
+	pdev->id = line;
+	at32_usarts[line] = pdev;
+}
+
+struct platform_device *__init at32_add_device_usart(unsigned int id)
+{
+	platform_device_register(at32_usarts[id]);
+	return at32_usarts[id];
+}
+
+struct platform_device *atmel_default_console_device;
+
+void __init at32_setup_serial_console(unsigned int usart_id)
+{
+	atmel_default_console_device = at32_usarts[usart_id];
+}
+
+/* --------------------------------------------------------------------
+ *  Ethernet
+ * -------------------------------------------------------------------- */
+
+#ifdef CONFIG_CPU_AT32AP7000
+static struct eth_platform_data macb0_data;
+static struct resource macb0_resource[] = {
+	PBMEM(0xfff01800),
+	IRQ(25),
+};
+DEFINE_DEV_DATA(macb, 0);
+DEV_CLK(hclk, macb0, hsb, 8);
+DEV_CLK(pclk, macb0, pbb, 6);
+
+static struct eth_platform_data macb1_data;
+static struct resource macb1_resource[] = {
+	PBMEM(0xfff01c00),
+	IRQ(26),
+};
+DEFINE_DEV_DATA(macb, 1);
+DEV_CLK(hclk, macb1, hsb, 9);
+DEV_CLK(pclk, macb1, pbb, 7);
+
+struct platform_device *__init
+at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
+{
+	struct platform_device *pdev;
+
+	switch (id) {
+	case 0:
+		pdev = &macb0_device;
+
+		select_peripheral(PC(3),  PERIPH_A, 0);	/* TXD0	*/
+		select_peripheral(PC(4),  PERIPH_A, 0);	/* TXD1	*/
+		select_peripheral(PC(7),  PERIPH_A, 0);	/* TXEN	*/
+		select_peripheral(PC(8),  PERIPH_A, 0);	/* TXCK */
+		select_peripheral(PC(9),  PERIPH_A, 0);	/* RXD0	*/
+		select_peripheral(PC(10), PERIPH_A, 0);	/* RXD1	*/
+		select_peripheral(PC(13), PERIPH_A, 0);	/* RXER	*/
+		select_peripheral(PC(15), PERIPH_A, 0);	/* RXDV	*/
+		select_peripheral(PC(16), PERIPH_A, 0);	/* MDC	*/
+		select_peripheral(PC(17), PERIPH_A, 0);	/* MDIO	*/
+
+		if (!data->is_rmii) {
+			select_peripheral(PC(0),  PERIPH_A, 0);	/* COL	*/
+			select_peripheral(PC(1),  PERIPH_A, 0);	/* CRS	*/
+			select_peripheral(PC(2),  PERIPH_A, 0);	/* TXER	*/
+			select_peripheral(PC(5),  PERIPH_A, 0);	/* TXD2	*/
+			select_peripheral(PC(6),  PERIPH_A, 0);	/* TXD3 */
+			select_peripheral(PC(11), PERIPH_A, 0);	/* RXD2	*/
+			select_peripheral(PC(12), PERIPH_A, 0);	/* RXD3	*/
+			select_peripheral(PC(14), PERIPH_A, 0);	/* RXCK	*/
+			select_peripheral(PC(18), PERIPH_A, 0);	/* SPD	*/
+		}
+		break;
+
+	case 1:
+		pdev = &macb1_device;
+
+		select_peripheral(PD(13), PERIPH_B, 0);		/* TXD0	*/
+		select_peripheral(PD(14), PERIPH_B, 0);		/* TXD1	*/
+		select_peripheral(PD(11), PERIPH_B, 0);		/* TXEN	*/
+		select_peripheral(PD(12), PERIPH_B, 0);		/* TXCK */
+		select_peripheral(PD(10), PERIPH_B, 0);		/* RXD0	*/
+		select_peripheral(PD(6),  PERIPH_B, 0);		/* RXD1	*/
+		select_peripheral(PD(5),  PERIPH_B, 0);		/* RXER	*/
+		select_peripheral(PD(4),  PERIPH_B, 0);		/* RXDV	*/
+		select_peripheral(PD(3),  PERIPH_B, 0);		/* MDC	*/
+		select_peripheral(PD(2),  PERIPH_B, 0);		/* MDIO	*/
+
+		if (!data->is_rmii) {
+			select_peripheral(PC(19), PERIPH_B, 0);	/* COL	*/
+			select_peripheral(PC(23), PERIPH_B, 0);	/* CRS	*/
+			select_peripheral(PC(26), PERIPH_B, 0);	/* TXER	*/
+			select_peripheral(PC(27), PERIPH_B, 0);	/* TXD2	*/
+			select_peripheral(PC(28), PERIPH_B, 0);	/* TXD3 */
+			select_peripheral(PC(29), PERIPH_B, 0);	/* RXD2	*/
+			select_peripheral(PC(30), PERIPH_B, 0);	/* RXD3	*/
+			select_peripheral(PC(24), PERIPH_B, 0);	/* RXCK	*/
+			select_peripheral(PD(15), PERIPH_B, 0);	/* SPD	*/
+		}
+		break;
+
+	default:
+		return NULL;
+	}
+
+	memcpy(pdev->dev.platform_data, data, sizeof(struct eth_platform_data));
+	platform_device_register(pdev);
+
+	return pdev;
+}
+#endif
+
+/* --------------------------------------------------------------------
+ *  SPI
+ * -------------------------------------------------------------------- */
+static struct resource atmel_spi0_resource[] = {
+	PBMEM(0xffe00000),
+	IRQ(3),
+};
+DEFINE_DEV(atmel_spi, 0);
+DEV_CLK(spi_clk, atmel_spi0, pba, 0);
+
+static struct resource atmel_spi1_resource[] = {
+	PBMEM(0xffe00400),
+	IRQ(4),
+};
+DEFINE_DEV(atmel_spi, 1);
+DEV_CLK(spi_clk, atmel_spi1, pba, 1);
+
+static void __init
+at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b,
+		      unsigned int n, const u8 *pins)
+{
+	unsigned int pin, mode;
+
+	for (; n; n--, b++) {
+		b->bus_num = bus_num;
+		if (b->chip_select >= 4)
+			continue;
+		pin = (unsigned)b->controller_data;
+		if (!pin) {
+			pin = pins[b->chip_select];
+			b->controller_data = (void *)pin;
+		}
+		mode = AT32_GPIOF_OUTPUT;
+		if (!(b->mode & SPI_CS_HIGH))
+			mode |= AT32_GPIOF_HIGH;
+		at32_select_gpio(pin, mode);
+	}
+}
+
+struct platform_device *__init
+at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n)
+{
+	/*
+	 * Manage the chipselects as GPIOs, normally using the same pins
+	 * the SPI controller expects; but boards can use other pins.
+	 */
+	static u8 __initdata spi0_pins[] =
+		{ GPIO_PIN_PA(3), GPIO_PIN_PA(4),
+		  GPIO_PIN_PA(5), GPIO_PIN_PA(20), };
+	static u8 __initdata spi1_pins[] =
+		{ GPIO_PIN_PB(2), GPIO_PIN_PB(3),
+		  GPIO_PIN_PB(4), GPIO_PIN_PA(27), };
+	struct platform_device *pdev;
+
+	switch (id) {
+	case 0:
+		pdev = &atmel_spi0_device;
+		select_peripheral(PA(0),  PERIPH_A, 0);	/* MISO	 */
+		select_peripheral(PA(1),  PERIPH_A, 0);	/* MOSI	 */
+		select_peripheral(PA(2),  PERIPH_A, 0);	/* SCK	 */
+		at32_spi_setup_slaves(0, b, n, spi0_pins);
+		break;
+
+	case 1:
+		pdev = &atmel_spi1_device;
+		select_peripheral(PB(0),  PERIPH_B, 0);	/* MISO  */
+		select_peripheral(PB(1),  PERIPH_B, 0);	/* MOSI  */
+		select_peripheral(PB(5),  PERIPH_B, 0);	/* SCK   */
+		at32_spi_setup_slaves(1, b, n, spi1_pins);
+		break;
+
+	default:
+		return NULL;
+	}
+
+	spi_register_board_info(b, n);
+	platform_device_register(pdev);
+	return pdev;
+}
+
+/* --------------------------------------------------------------------
+ *  TWI
+ * -------------------------------------------------------------------- */
+static struct resource atmel_twi0_resource[] __initdata = {
+	PBMEM(0xffe00800),
+	IRQ(5),
+};
+static struct clk atmel_twi0_pclk = {
+	.name		= "twi_pclk",
+	.parent		= &pba_clk,
+	.mode		= pba_clk_mode,
+	.get_rate	= pba_clk_get_rate,
+	.index		= 2,
+};
+
+struct platform_device *__init at32_add_device_twi(unsigned int id)
+{
+	struct platform_device *pdev;
+
+	if (id != 0)
+		return NULL;
+
+	pdev = platform_device_alloc("atmel_twi", id);
+	if (!pdev)
+		return NULL;
+
+	if (platform_device_add_resources(pdev, atmel_twi0_resource,
+				ARRAY_SIZE(atmel_twi0_resource)))
+		goto err_add_resources;
+
+	select_peripheral(PA(6),  PERIPH_A, 0);	/* SDA	*/
+	select_peripheral(PA(7),  PERIPH_A, 0);	/* SDL	*/
+
+	atmel_twi0_pclk.dev = &pdev->dev;
+
+	platform_device_add(pdev);
+	return pdev;
+
+err_add_resources:
+	platform_device_put(pdev);
+	return NULL;
+}
+
+/* --------------------------------------------------------------------
+ * MMC
+ * -------------------------------------------------------------------- */
+static struct resource atmel_mci0_resource[] __initdata = {
+	PBMEM(0xfff02400),
+	IRQ(28),
+};
+static struct clk atmel_mci0_pclk = {
+	.name		= "mci_clk",
+	.parent		= &pbb_clk,
+	.mode		= pbb_clk_mode,
+	.get_rate	= pbb_clk_get_rate,
+	.index		= 9,
+};
+
+struct platform_device *__init at32_add_device_mci(unsigned int id)
+{
+	struct platform_device *pdev;
+
+	if (id != 0)
+		return NULL;
+
+	pdev = platform_device_alloc("atmel_mci", id);
+	if (!pdev)
+		return NULL;
+
+	if (platform_device_add_resources(pdev, atmel_mci0_resource,
+				ARRAY_SIZE(atmel_mci0_resource)))
+		goto err_add_resources;
+
+	select_peripheral(PA(10), PERIPH_A, 0);	/* CLK	 */
+	select_peripheral(PA(11), PERIPH_A, 0);	/* CMD	 */
+	select_peripheral(PA(12), PERIPH_A, 0);	/* DATA0 */
+	select_peripheral(PA(13), PERIPH_A, 0);	/* DATA1 */
+	select_peripheral(PA(14), PERIPH_A, 0);	/* DATA2 */
+	select_peripheral(PA(15), PERIPH_A, 0);	/* DATA3 */
+
+	atmel_mci0_pclk.dev = &pdev->dev;
+
+	platform_device_add(pdev);
+	return pdev;
+
+err_add_resources:
+	platform_device_put(pdev);
+	return NULL;
+}
+
+/* --------------------------------------------------------------------
+ *  LCDC
+ * -------------------------------------------------------------------- */
+#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
+static struct atmel_lcdfb_info atmel_lcdfb0_data;
+static struct resource atmel_lcdfb0_resource[] = {
+	{
+		.start		= 0xff000000,
+		.end		= 0xff000fff,
+		.flags		= IORESOURCE_MEM,
+	},
+	IRQ(1),
+	{
+		/* Placeholder for pre-allocated fb memory */
+		.start		= 0x00000000,
+		.end		= 0x00000000,
+		.flags		= 0,
+	},
+};
+DEFINE_DEV_DATA(atmel_lcdfb, 0);
+DEV_CLK(hck1, atmel_lcdfb0, hsb, 7);
+static struct clk atmel_lcdfb0_pixclk = {
+	.name		= "lcdc_clk",
+	.dev		= &atmel_lcdfb0_device.dev,
+	.mode		= genclk_mode,
+	.get_rate	= genclk_get_rate,
+	.set_rate	= genclk_set_rate,
+	.set_parent	= genclk_set_parent,
+	.index		= 7,
+};
+
+struct platform_device *__init
+at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
+		     unsigned long fbmem_start, unsigned long fbmem_len)
+{
+	struct platform_device *pdev;
+	struct atmel_lcdfb_info *info;
+	struct fb_monspecs *monspecs;
+	struct fb_videomode *modedb;
+	unsigned int modedb_size;
+
+	/*
+	 * Do a deep copy of the fb data, monspecs and modedb. Make
+	 * sure all allocations are done before setting up the
+	 * portmux.
+	 */
+	monspecs = kmemdup(data->default_monspecs,
+			   sizeof(struct fb_monspecs), GFP_KERNEL);
+	if (!monspecs)
+		return NULL;
+
+	modedb_size = sizeof(struct fb_videomode) * monspecs->modedb_len;
+	modedb = kmemdup(monspecs->modedb, modedb_size, GFP_KERNEL);
+	if (!modedb)
+		goto err_dup_modedb;
+	monspecs->modedb = modedb;
+
+	switch (id) {
+	case 0:
+		pdev = &atmel_lcdfb0_device;
+		select_peripheral(PC(19), PERIPH_A, 0);	/* CC	  */
+		select_peripheral(PC(20), PERIPH_A, 0);	/* HSYNC  */
+		select_peripheral(PC(21), PERIPH_A, 0);	/* PCLK	  */
+		select_peripheral(PC(22), PERIPH_A, 0);	/* VSYNC  */
+		select_peripheral(PC(23), PERIPH_A, 0);	/* DVAL	  */
+		select_peripheral(PC(24), PERIPH_A, 0);	/* MODE	  */
+		select_peripheral(PC(25), PERIPH_A, 0);	/* PWR	  */
+		select_peripheral(PC(26), PERIPH_A, 0);	/* DATA0  */
+		select_peripheral(PC(27), PERIPH_A, 0);	/* DATA1  */
+		select_peripheral(PC(28), PERIPH_A, 0);	/* DATA2  */
+		select_peripheral(PC(29), PERIPH_A, 0);	/* DATA3  */
+		select_peripheral(PC(30), PERIPH_A, 0);	/* DATA4  */
+		select_peripheral(PC(31), PERIPH_A, 0);	/* DATA5  */
+		select_peripheral(PD(0),  PERIPH_A, 0);	/* DATA6  */
+		select_peripheral(PD(1),  PERIPH_A, 0);	/* DATA7  */
+		select_peripheral(PD(2),  PERIPH_A, 0);	/* DATA8  */
+		select_peripheral(PD(3),  PERIPH_A, 0);	/* DATA9  */
+		select_peripheral(PD(4),  PERIPH_A, 0);	/* DATA10 */
+		select_peripheral(PD(5),  PERIPH_A, 0);	/* DATA11 */
+		select_peripheral(PD(6),  PERIPH_A, 0);	/* DATA12 */
+		select_peripheral(PD(7),  PERIPH_A, 0);	/* DATA13 */
+		select_peripheral(PD(8),  PERIPH_A, 0);	/* DATA14 */
+		select_peripheral(PD(9),  PERIPH_A, 0);	/* DATA15 */
+		select_peripheral(PD(10), PERIPH_A, 0);	/* DATA16 */
+		select_peripheral(PD(11), PERIPH_A, 0);	/* DATA17 */
+		select_peripheral(PD(12), PERIPH_A, 0);	/* DATA18 */
+		select_peripheral(PD(13), PERIPH_A, 0);	/* DATA19 */
+		select_peripheral(PD(14), PERIPH_A, 0);	/* DATA20 */
+		select_peripheral(PD(15), PERIPH_A, 0);	/* DATA21 */
+		select_peripheral(PD(16), PERIPH_A, 0);	/* DATA22 */
+		select_peripheral(PD(17), PERIPH_A, 0);	/* DATA23 */
+
+		clk_set_parent(&atmel_lcdfb0_pixclk, &pll0);
+		clk_set_rate(&atmel_lcdfb0_pixclk, clk_get_rate(&pll0));
+		break;
+
+	default:
+		goto err_invalid_id;
+	}
+
+	if (fbmem_len) {
+		pdev->resource[2].start = fbmem_start;
+		pdev->resource[2].end = fbmem_start + fbmem_len - 1;
+		pdev->resource[2].flags = IORESOURCE_MEM;
+	}
+
+	info = pdev->dev.platform_data;
+	memcpy(info, data, sizeof(struct atmel_lcdfb_info));
+	info->default_monspecs = monspecs;
+
+	platform_device_register(pdev);
+	return pdev;
+
+err_invalid_id:
+	kfree(modedb);
+err_dup_modedb:
+	kfree(monspecs);
+	return NULL;
+}
+#endif
+
+/* --------------------------------------------------------------------
+ *  SSC
+ * -------------------------------------------------------------------- */
+static struct resource ssc0_resource[] = {
+	PBMEM(0xffe01c00),
+	IRQ(10),
+};
+DEFINE_DEV(ssc, 0);
+DEV_CLK(pclk, ssc0, pba, 7);
+
+static struct resource ssc1_resource[] = {
+	PBMEM(0xffe02000),
+	IRQ(11),
+};
+DEFINE_DEV(ssc, 1);
+DEV_CLK(pclk, ssc1, pba, 8);
+
+static struct resource ssc2_resource[] = {
+	PBMEM(0xffe02400),
+	IRQ(12),
+};
+DEFINE_DEV(ssc, 2);
+DEV_CLK(pclk, ssc2, pba, 9);
+
+struct platform_device *__init
+at32_add_device_ssc(unsigned int id, unsigned int flags)
+{
+	struct platform_device *pdev;
+
+	switch (id) {
+	case 0:
+		pdev = &ssc0_device;
+		if (flags & ATMEL_SSC_RF)
+			select_peripheral(PA(21), PERIPH_A, 0);	/* RF */
+		if (flags & ATMEL_SSC_RK)
+			select_peripheral(PA(22), PERIPH_A, 0);	/* RK */
+		if (flags & ATMEL_SSC_TK)
+			select_peripheral(PA(23), PERIPH_A, 0);	/* TK */
+		if (flags & ATMEL_SSC_TF)
+			select_peripheral(PA(24), PERIPH_A, 0);	/* TF */
+		if (flags & ATMEL_SSC_TD)
+			select_peripheral(PA(25), PERIPH_A, 0);	/* TD */
+		if (flags & ATMEL_SSC_RD)
+			select_peripheral(PA(26), PERIPH_A, 0);	/* RD */
+		break;
+	case 1:
+		pdev = &ssc1_device;
+		if (flags & ATMEL_SSC_RF)
+			select_peripheral(PA(0), PERIPH_B, 0);	/* RF */
+		if (flags & ATMEL_SSC_RK)
+			select_peripheral(PA(1), PERIPH_B, 0);	/* RK */
+		if (flags & ATMEL_SSC_TK)
+			select_peripheral(PA(2), PERIPH_B, 0);	/* TK */
+		if (flags & ATMEL_SSC_TF)
+			select_peripheral(PA(3), PERIPH_B, 0);	/* TF */
+		if (flags & ATMEL_SSC_TD)
+			select_peripheral(PA(4), PERIPH_B, 0);	/* TD */
+		if (flags & ATMEL_SSC_RD)
+			select_peripheral(PA(5), PERIPH_B, 0);	/* RD */
+		break;
+	case 2:
+		pdev = &ssc2_device;
+		if (flags & ATMEL_SSC_TD)
+			select_peripheral(PB(13), PERIPH_A, 0);	/* TD */
+		if (flags & ATMEL_SSC_RD)
+			select_peripheral(PB(14), PERIPH_A, 0);	/* RD */
+		if (flags & ATMEL_SSC_TK)
+			select_peripheral(PB(15), PERIPH_A, 0);	/* TK */
+		if (flags & ATMEL_SSC_TF)
+			select_peripheral(PB(16), PERIPH_A, 0);	/* TF */
+		if (flags & ATMEL_SSC_RF)
+			select_peripheral(PB(17), PERIPH_A, 0);	/* RF */
+		if (flags & ATMEL_SSC_RK)
+			select_peripheral(PB(18), PERIPH_A, 0);	/* RK */
+		break;
+	default:
+		return NULL;
+	}
+
+	platform_device_register(pdev);
+	return pdev;
+}
+
+/* --------------------------------------------------------------------
+ *  USB Device Controller
+ * -------------------------------------------------------------------- */
+static struct resource usba0_resource[] __initdata = {
+	{
+		.start		= 0xff300000,
+		.end		= 0xff3fffff,
+		.flags		= IORESOURCE_MEM,
+	}, {
+		.start		= 0xfff03000,
+		.end		= 0xfff033ff,
+		.flags		= IORESOURCE_MEM,
+	},
+	IRQ(31),
+};
+static struct clk usba0_pclk = {
+	.name		= "pclk",
+	.parent		= &pbb_clk,
+	.mode		= pbb_clk_mode,
+	.get_rate	= pbb_clk_get_rate,
+	.index		= 12,
+};
+static struct clk usba0_hclk = {
+	.name		= "hclk",
+	.parent		= &hsb_clk,
+	.mode		= hsb_clk_mode,
+	.get_rate	= hsb_clk_get_rate,
+	.index		= 6,
+};
+
+struct platform_device *__init
+at32_add_device_usba(unsigned int id, struct usba_platform_data *data)
+{
+	struct platform_device *pdev;
+
+	if (id != 0)
+		return NULL;
+
+	pdev = platform_device_alloc("atmel_usba_udc", 0);
+	if (!pdev)
+		return NULL;
+
+	if (platform_device_add_resources(pdev, usba0_resource,
+					  ARRAY_SIZE(usba0_resource)))
+		goto out_free_pdev;
+
+	if (data) {
+		if (platform_device_add_data(pdev, data, sizeof(*data)))
+			goto out_free_pdev;
+
+		if (data->vbus_pin != GPIO_PIN_NONE)
+			at32_select_gpio(data->vbus_pin, 0);
+	}
+
+	usba0_pclk.dev = &pdev->dev;
+	usba0_hclk.dev = &pdev->dev;
+
+	platform_device_add(pdev);
+
+	return pdev;
+
+out_free_pdev:
+	platform_device_put(pdev);
+	return NULL;
+}
+
+/* --------------------------------------------------------------------
+ * IDE / CompactFlash
+ * -------------------------------------------------------------------- */
+#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7001)
+static struct resource at32_smc_cs4_resource[] __initdata = {
+	{
+		.start	= 0x04000000,
+		.end	= 0x07ffffff,
+		.flags	= IORESOURCE_MEM,
+	},
+	IRQ(~0UL), /* Magic IRQ will be overridden */
+};
+static struct resource at32_smc_cs5_resource[] __initdata = {
+	{
+		.start	= 0x20000000,
+		.end	= 0x23ffffff,
+		.flags	= IORESOURCE_MEM,
+	},
+	IRQ(~0UL), /* Magic IRQ will be overridden */
+};
+
+static int __init at32_init_ide_or_cf(struct platform_device *pdev,
+		unsigned int cs, unsigned int extint)
+{
+	static unsigned int extint_pin_map[4] __initdata = {
+		GPIO_PIN_PB(25),
+		GPIO_PIN_PB(26),
+		GPIO_PIN_PB(27),
+		GPIO_PIN_PB(28),
+	};
+	static bool common_pins_initialized __initdata = false;
+	unsigned int extint_pin;
+	int ret;
+
+	if (extint >= ARRAY_SIZE(extint_pin_map))
+		return -EINVAL;
+	extint_pin = extint_pin_map[extint];
+
+	switch (cs) {
+	case 4:
+		ret = platform_device_add_resources(pdev,
+				at32_smc_cs4_resource,
+				ARRAY_SIZE(at32_smc_cs4_resource));
+		if (ret)
+			return ret;
+
+		select_peripheral(PE(21), PERIPH_A, 0); /* NCS4   -> OE_N  */
+		set_ebi_sfr_bits(HMATRIX_BIT(CS4A));
+		break;
+	case 5:
+		ret = platform_device_add_resources(pdev,
+				at32_smc_cs5_resource,
+				ARRAY_SIZE(at32_smc_cs5_resource));
+		if (ret)
+			return ret;
+
+		select_peripheral(PE(22), PERIPH_A, 0); /* NCS5   -> OE_N  */
+		set_ebi_sfr_bits(HMATRIX_BIT(CS5A));
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (!common_pins_initialized) {
+		select_peripheral(PE(19), PERIPH_A, 0);	/* CFCE1  -> CS0_N */
+		select_peripheral(PE(20), PERIPH_A, 0);	/* CFCE2  -> CS1_N */
+		select_peripheral(PE(23), PERIPH_A, 0); /* CFRNW  -> DIR   */
+		select_peripheral(PE(24), PERIPH_A, 0); /* NWAIT  <- IORDY */
+		common_pins_initialized = true;
+	}
+
+	at32_select_periph(extint_pin, GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
+
+	pdev->resource[1].start = EIM_IRQ_BASE + extint;
+	pdev->resource[1].end = pdev->resource[1].start;
+
+	return 0;
+}
+
+struct platform_device *__init
+at32_add_device_ide(unsigned int id, unsigned int extint,
+		    struct ide_platform_data *data)
+{
+	struct platform_device *pdev;
+
+	pdev = platform_device_alloc("at32_ide", id);
+	if (!pdev)
+		goto fail;
+
+	if (platform_device_add_data(pdev, data,
+				sizeof(struct ide_platform_data)))
+		goto fail;
+
+	if (at32_init_ide_or_cf(pdev, data->cs, extint))
+		goto fail;
+
+	platform_device_add(pdev);
+	return pdev;
+
+fail:
+	platform_device_put(pdev);
+	return NULL;
+}
+
+struct platform_device *__init
+at32_add_device_cf(unsigned int id, unsigned int extint,
+		    struct cf_platform_data *data)
+{
+	struct platform_device *pdev;
+
+	pdev = platform_device_alloc("at32_cf", id);
+	if (!pdev)
+		goto fail;
+
+	if (platform_device_add_data(pdev, data,
+				sizeof(struct cf_platform_data)))
+		goto fail;
+
+	if (at32_init_ide_or_cf(pdev, data->cs, extint))
+		goto fail;
+
+	if (data->detect_pin != GPIO_PIN_NONE)
+		at32_select_gpio(data->detect_pin, AT32_GPIOF_DEGLITCH);
+	if (data->reset_pin != GPIO_PIN_NONE)
+		at32_select_gpio(data->reset_pin, 0);
+	if (data->vcc_pin != GPIO_PIN_NONE)
+		at32_select_gpio(data->vcc_pin, 0);
+	/* READY is used as extint, so we can't select it as gpio */
+
+	platform_device_add(pdev);
+	return pdev;
+
+fail:
+	platform_device_put(pdev);
+	return NULL;
+}
+#endif
+
+/* --------------------------------------------------------------------
+ * AC97C
+ * -------------------------------------------------------------------- */
+static struct resource atmel_ac97c0_resource[] __initdata = {
+	PBMEM(0xfff02800),
+	IRQ(29),
+};
+static struct clk atmel_ac97c0_pclk = {
+	.name		= "pclk",
+	.parent		= &pbb_clk,
+	.mode		= pbb_clk_mode,
+	.get_rate	= pbb_clk_get_rate,
+	.index		= 10,
+};
+
+struct platform_device *__init at32_add_device_ac97c(unsigned int id)
+{
+	struct platform_device *pdev;
+
+	if (id != 0)
+		return NULL;
+
+	pdev = platform_device_alloc("atmel_ac97c", id);
+	if (!pdev)
+		return NULL;
+
+	if (platform_device_add_resources(pdev, atmel_ac97c0_resource,
+				ARRAY_SIZE(atmel_ac97c0_resource)))
+		goto err_add_resources;
+
+	select_peripheral(PB(20), PERIPH_B, 0);	/* SYNC	*/
+	select_peripheral(PB(21), PERIPH_B, 0);	/* SDO	*/
+	select_peripheral(PB(22), PERIPH_B, 0);	/* SDI	*/
+	select_peripheral(PB(23), PERIPH_B, 0);	/* SCLK	*/
+
+	atmel_ac97c0_pclk.dev = &pdev->dev;
+
+	platform_device_add(pdev);
+	return pdev;
+
+err_add_resources:
+	platform_device_put(pdev);
+	return NULL;
+}
+
+/* --------------------------------------------------------------------
+ * ABDAC
+ * -------------------------------------------------------------------- */
+static struct resource abdac0_resource[] __initdata = {
+	PBMEM(0xfff02000),
+	IRQ(27),
+};
+static struct clk abdac0_pclk = {
+	.name		= "pclk",
+	.parent		= &pbb_clk,
+	.mode		= pbb_clk_mode,
+	.get_rate	= pbb_clk_get_rate,
+	.index		= 8,
+};
+static struct clk abdac0_sample_clk = {
+	.name		= "sample_clk",
+	.mode		= genclk_mode,
+	.get_rate	= genclk_get_rate,
+	.set_rate	= genclk_set_rate,
+	.set_parent	= genclk_set_parent,
+	.index		= 6,
+};
+
+struct platform_device *__init at32_add_device_abdac(unsigned int id)
+{
+	struct platform_device *pdev;
+
+	if (id != 0)
+		return NULL;
+
+	pdev = platform_device_alloc("abdac", id);
+	if (!pdev)
+		return NULL;
+
+	if (platform_device_add_resources(pdev, abdac0_resource,
+				ARRAY_SIZE(abdac0_resource)))
+		goto err_add_resources;
+
+	select_peripheral(PB(20), PERIPH_A, 0);	/* DATA1	*/
+	select_peripheral(PB(21), PERIPH_A, 0);	/* DATA0	*/
+	select_peripheral(PB(22), PERIPH_A, 0);	/* DATAN1	*/
+	select_peripheral(PB(23), PERIPH_A, 0);	/* DATAN0	*/
+
+	abdac0_pclk.dev = &pdev->dev;
+	abdac0_sample_clk.dev = &pdev->dev;
+
+	platform_device_add(pdev);
+	return pdev;
+
+err_add_resources:
+	platform_device_put(pdev);
+	return NULL;
+}
+
+/* --------------------------------------------------------------------
+ *  GCLK
+ * -------------------------------------------------------------------- */
+static struct clk gclk0 = {
+	.name		= "gclk0",
+	.mode		= genclk_mode,
+	.get_rate	= genclk_get_rate,
+	.set_rate	= genclk_set_rate,
+	.set_parent	= genclk_set_parent,
+	.index		= 0,
+};
+static struct clk gclk1 = {
+	.name		= "gclk1",
+	.mode		= genclk_mode,
+	.get_rate	= genclk_get_rate,
+	.set_rate	= genclk_set_rate,
+	.set_parent	= genclk_set_parent,
+	.index		= 1,
+};
+static struct clk gclk2 = {
+	.name		= "gclk2",
+	.mode		= genclk_mode,
+	.get_rate	= genclk_get_rate,
+	.set_rate	= genclk_set_rate,
+	.set_parent	= genclk_set_parent,
+	.index		= 2,
+};
+static struct clk gclk3 = {
+	.name		= "gclk3",
+	.mode		= genclk_mode,
+	.get_rate	= genclk_get_rate,
+	.set_rate	= genclk_set_rate,
+	.set_parent	= genclk_set_parent,
+	.index		= 3,
+};
+static struct clk gclk4 = {
+	.name		= "gclk4",
+	.mode		= genclk_mode,
+	.get_rate	= genclk_get_rate,
+	.set_rate	= genclk_set_rate,
+	.set_parent	= genclk_set_parent,
+	.index		= 4,
+};
+
+struct clk *at32_clock_list[] = {
+	&osc32k,
+	&osc0,
+	&osc1,
+	&pll0,
+	&pll1,
+	&cpu_clk,
+	&hsb_clk,
+	&pba_clk,
+	&pbb_clk,
+	&at32_pm_pclk,
+	&at32_intc0_pclk,
+	&hmatrix_clk,
+	&ebi_clk,
+	&hramc_clk,
+	&smc0_pclk,
+	&smc0_mck,
+	&pdc_hclk,
+	&pdc_pclk,
+	&dmaca0_hclk,
+	&pico_clk,
+	&pio0_mck,
+	&pio1_mck,
+	&pio2_mck,
+	&pio3_mck,
+	&pio4_mck,
+	&at32_systc0_pclk,
+	&atmel_usart0_usart,
+	&atmel_usart1_usart,
+	&atmel_usart2_usart,
+	&atmel_usart3_usart,
+#if defined(CONFIG_CPU_AT32AP7000)
+	&macb0_hclk,
+	&macb0_pclk,
+	&macb1_hclk,
+	&macb1_pclk,
+#endif
+	&atmel_spi0_spi_clk,
+	&atmel_spi1_spi_clk,
+	&atmel_twi0_pclk,
+	&atmel_mci0_pclk,
+#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
+	&atmel_lcdfb0_hck1,
+	&atmel_lcdfb0_pixclk,
+#endif
+	&ssc0_pclk,
+	&ssc1_pclk,
+	&ssc2_pclk,
+	&usba0_hclk,
+	&usba0_pclk,
+	&atmel_ac97c0_pclk,
+	&abdac0_pclk,
+	&abdac0_sample_clk,
+	&gclk0,
+	&gclk1,
+	&gclk2,
+	&gclk3,
+	&gclk4,
+};
+unsigned int at32_nr_clocks = ARRAY_SIZE(at32_clock_list);
+
+void __init at32_portmux_init(void)
+{
+	at32_init_pio(&pio0_device);
+	at32_init_pio(&pio1_device);
+	at32_init_pio(&pio2_device);
+	at32_init_pio(&pio3_device);
+	at32_init_pio(&pio4_device);
+}
+
+void __init at32_clock_init(void)
+{
+	u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0;
+	int i;
+
+	if (pm_readl(MCCTRL) & PM_BIT(PLLSEL)) {
+		main_clock = &pll0;
+		cpu_clk.parent = &pll0;
+	} else {
+		main_clock = &osc0;
+		cpu_clk.parent = &osc0;
+	}
+
+	if (pm_readl(PLL0) & PM_BIT(PLLOSC))
+		pll0.parent = &osc1;
+	if (pm_readl(PLL1) & PM_BIT(PLLOSC))
+		pll1.parent = &osc1;
+
+	genclk_init_parent(&gclk0);
+	genclk_init_parent(&gclk1);
+	genclk_init_parent(&gclk2);
+	genclk_init_parent(&gclk3);
+	genclk_init_parent(&gclk4);
+#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
+	genclk_init_parent(&atmel_lcdfb0_pixclk);
+#endif
+	genclk_init_parent(&abdac0_sample_clk);
+
+	/*
+	 * Turn on all clocks that have at least one user already, and
+	 * turn off everything else. We only do this for module
+	 * clocks, and even though it isn't particularly pretty to
+	 * check the address of the mode function, it should do the
+	 * trick...
+	 */
+	for (i = 0; i < ARRAY_SIZE(at32_clock_list); i++) {
+		struct clk *clk = at32_clock_list[i];
+
+		if (clk->users == 0)
+			continue;
+
+		if (clk->mode == &cpu_clk_mode)
+			cpu_mask |= 1 << clk->index;
+		else if (clk->mode == &hsb_clk_mode)
+			hsb_mask |= 1 << clk->index;
+		else if (clk->mode == &pba_clk_mode)
+			pba_mask |= 1 << clk->index;
+		else if (clk->mode == &pbb_clk_mode)
+			pbb_mask |= 1 << clk->index;
+	}
+
+	pm_writel(CPU_MASK, cpu_mask);
+	pm_writel(HSB_MASK, hsb_mask);
+	pm_writel(PBA_MASK, pba_mask);
+	pm_writel(PBB_MASK, pbb_mask);
+}
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 52dff40ec192..fbd61127b9d9 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -223,7 +223,7 @@ config DAVINCI_WATCHDOG
 
 config AT32AP700X_WDT
 	tristate "AT32AP700x watchdog"
-	depends on CPU_AT32AP7000
+	depends on CPU_AT32AP700X
 	help
 	  Watchdog timer embedded into AT32AP700x devices. This will reboot
 	  your system when the timeout is reached.
diff --git a/include/asm-avr32/arch-at32ap/at32ap7000.h b/include/asm-avr32/arch-at32ap/at32ap7000.h
deleted file mode 100644
index 3914d7b94ff4..000000000000
--- a/include/asm-avr32/arch-at32ap/at32ap7000.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Pin definitions for AT32AP7000.
- *
- * Copyright (C) 2006 Atmel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef __ASM_ARCH_AT32AP7000_H__
-#define __ASM_ARCH_AT32AP7000_H__
-
-#define GPIO_PERIPH_A	0
-#define GPIO_PERIPH_B	1
-
-#define NR_GPIO_CONTROLLERS	4
-
-/*
- * Pin numbers identifying specific GPIO pins on the chip. They can
- * also be converted to IRQ numbers by passing them through
- * gpio_to_irq().
- */
-#define GPIO_PIOA_BASE	(0)
-#define GPIO_PIOB_BASE	(GPIO_PIOA_BASE + 32)
-#define GPIO_PIOC_BASE	(GPIO_PIOB_BASE + 32)
-#define GPIO_PIOD_BASE	(GPIO_PIOC_BASE + 32)
-#define GPIO_PIOE_BASE	(GPIO_PIOD_BASE + 32)
-
-#define GPIO_PIN_PA(N)	(GPIO_PIOA_BASE + (N))
-#define GPIO_PIN_PB(N)	(GPIO_PIOB_BASE + (N))
-#define GPIO_PIN_PC(N)	(GPIO_PIOC_BASE + (N))
-#define GPIO_PIN_PD(N)	(GPIO_PIOD_BASE + (N))
-#define GPIO_PIN_PE(N)	(GPIO_PIOE_BASE + (N))
-
-#endif /* __ASM_ARCH_AT32AP7000_H__ */
diff --git a/include/asm-avr32/arch-at32ap/at32ap700x.h b/include/asm-avr32/arch-at32ap/at32ap700x.h
new file mode 100644
index 000000000000..99684d6f3967
--- /dev/null
+++ b/include/asm-avr32/arch-at32ap/at32ap700x.h
@@ -0,0 +1,35 @@
+/*
+ * Pin definitions for AT32AP7000.
+ *
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_ARCH_AT32AP700X_H__
+#define __ASM_ARCH_AT32AP700X_H__
+
+#define GPIO_PERIPH_A	0
+#define GPIO_PERIPH_B	1
+
+#define NR_GPIO_CONTROLLERS	4
+
+/*
+ * Pin numbers identifying specific GPIO pins on the chip. They can
+ * also be converted to IRQ numbers by passing them through
+ * gpio_to_irq().
+ */
+#define GPIO_PIOA_BASE	(0)
+#define GPIO_PIOB_BASE	(GPIO_PIOA_BASE + 32)
+#define GPIO_PIOC_BASE	(GPIO_PIOB_BASE + 32)
+#define GPIO_PIOD_BASE	(GPIO_PIOC_BASE + 32)
+#define GPIO_PIOE_BASE	(GPIO_PIOD_BASE + 32)
+
+#define GPIO_PIN_PA(N)	(GPIO_PIOA_BASE + (N))
+#define GPIO_PIN_PB(N)	(GPIO_PIOB_BASE + (N))
+#define GPIO_PIN_PC(N)	(GPIO_PIOC_BASE + (N))
+#define GPIO_PIN_PD(N)	(GPIO_PIOD_BASE + (N))
+#define GPIO_PIN_PE(N)	(GPIO_PIOE_BASE + (N))
+
+#endif /* __ASM_ARCH_AT32AP700X_H__ */
diff --git a/include/asm-avr32/arch-at32ap/cpu.h b/include/asm-avr32/arch-at32ap/cpu.h
index a762f42cbb71..0dc20261c1ea 100644
--- a/include/asm-avr32/arch-at32ap/cpu.h
+++ b/include/asm-avr32/arch-at32ap/cpu.h
@@ -14,7 +14,7 @@
  * Only AT32AP7000 is defined for now. We can identify the specific
  * chip at runtime, but I'm not sure if it's really worth it.
  */
-#ifdef CONFIG_CPU_AT32AP7000
+#ifdef CONFIG_CPU_AT32AP700X
 # define cpu_is_at32ap7000()	(1)
 #else
 # define cpu_is_at32ap7000()	(0)
diff --git a/include/asm-avr32/arch-at32ap/io.h b/include/asm-avr32/arch-at32ap/io.h
index ee59e401f041..4ec6abc68ea3 100644
--- a/include/asm-avr32/arch-at32ap/io.h
+++ b/include/asm-avr32/arch-at32ap/io.h
@@ -4,7 +4,7 @@
 /* For "bizarre" halfword swapping */
 #include <linux/byteorder/swabb.h>
 
-#if defined(CONFIG_AP7000_32_BIT_SMC)
+#if defined(CONFIG_AP700X_32_BIT_SMC)
 # define __swizzle_addr_b(addr)	(addr ^ 3UL)
 # define __swizzle_addr_w(addr)	(addr ^ 2UL)
 # define __swizzle_addr_l(addr)	(addr)
@@ -14,7 +14,7 @@
 # define __mem_ioswabb(a, x)	(x)
 # define __mem_ioswabw(a, x)	swab16(x)
 # define __mem_ioswabl(a, x)	swab32(x)
-#elif defined(CONFIG_AP7000_16_BIT_SMC)
+#elif defined(CONFIG_AP700X_16_BIT_SMC)
 # define __swizzle_addr_b(addr)	(addr ^ 1UL)
 # define __swizzle_addr_w(addr)	(addr)
 # define __swizzle_addr_l(addr)	(addr)
-- 
cgit v1.2.3-59-g8ed1b


From f4c41b2689eec03bd4f8145a08903862673e002b Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Mon, 29 Oct 2007 16:02:51 +0100
Subject: [AVR32] ATSTK1000: Move gpio-leds setup to setup.c

There may be other boards than STK1002 that want to use the leds on
STK1000. Move it to stk1000 common code to make it easier to reuse.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/boards/atstk1000/Kconfig     |  8 ++---
 arch/avr32/boards/atstk1000/atstk1000.h |  2 ++
 arch/avr32/boards/atstk1000/atstk1002.c | 64 ++-------------------------------
 arch/avr32/boards/atstk1000/setup.c     | 64 +++++++++++++++++++++++++++++++++
 4 files changed, 72 insertions(+), 66 deletions(-)

(limited to 'arch')

diff --git a/arch/avr32/boards/atstk1000/Kconfig b/arch/avr32/boards/atstk1000/Kconfig
index 718578f64069..dcf9e9e2b289 100644
--- a/arch/avr32/boards/atstk1000/Kconfig
+++ b/arch/avr32/boards/atstk1000/Kconfig
@@ -50,9 +50,9 @@ config BOARD_ATSTK1002_SPI1
 	  GPIO lines and accessed through the J1 jumper block.  Say "y"
 	  here to configure that SPI controller.
 
-config BOARD_ATSTK1002_J2_LED
+config BOARD_ATSTK1000_J2_LED
 	bool
-	default BOARD_ATSTK1002_J2_LED8 || BOARD_ATSTK1002_J2_RGB
+	default BOARD_ATSTK1000_J2_LED8 || BOARD_ATSTK1000_J2_RGB
 
 choice
 	prompt "LEDs connected to J2:"
@@ -64,12 +64,12 @@ choice
 	  IDC cable.  A default "heartbeat" trigger is provided, but
 	  you can of course override this.
 
-config BOARD_ATSTK1002_J2_LED8
+config BOARD_ATSTK1000_J2_LED8
 	bool "LED0..LED7"
 	help
 	  Select this if J2 is jumpered to LED0..LED7 amber leds.
 
-config BOARD_ATSTK1002_J2_RGB
+config BOARD_ATSTK1000_J2_RGB
 	bool "RGB leds"
 	help
 	  Select this if J2 is jumpered to the RGB leds.
diff --git a/arch/avr32/boards/atstk1000/atstk1000.h b/arch/avr32/boards/atstk1000/atstk1000.h
index 9a49ed036b72..9392d3252865 100644
--- a/arch/avr32/boards/atstk1000/atstk1000.h
+++ b/arch/avr32/boards/atstk1000/atstk1000.h
@@ -12,4 +12,6 @@
 
 extern struct atmel_lcdfb_info atstk1000_lcdc_data;
 
+void atstk1000_setup_j2_leds(void);
+
 #endif /* __ARCH_AVR32_BOARDS_ATSTK1000_ATSTK1000_H */
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index 5be0d13f4b03..2481d2389873 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -11,7 +11,6 @@
 #include <linux/etherdevice.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
-#include <linux/leds.h>
 #include <linux/platform_device.h>
 #include <linux/string.h>
 #include <linux/types.h>
@@ -22,7 +21,7 @@
 
 #include <asm/io.h>
 #include <asm/setup.h>
-#include <asm/arch/at32ap7000.h>
+#include <asm/arch/at32ap700x.h>
 #include <asm/arch/board.h>
 #include <asm/arch/init.h>
 #include <asm/arch/portmux.h>
@@ -141,65 +140,6 @@ static void __init set_hw_addr(struct platform_device *pdev)
 	clk_put(pclk);
 }
 
-#ifdef CONFIG_BOARD_ATSTK1002_J2_LED
-
-static struct gpio_led stk_j2_led[] = {
-#ifdef CONFIG_BOARD_ATSTK1002_J2_LED8
-#define LEDSTRING "J2 jumpered to LED8"
-	{ .name = "led0:amber", .gpio = GPIO_PIN_PB( 8), },
-	{ .name = "led1:amber", .gpio = GPIO_PIN_PB( 9), },
-	{ .name = "led2:amber", .gpio = GPIO_PIN_PB(10), },
-	{ .name = "led3:amber", .gpio = GPIO_PIN_PB(13), },
-	{ .name = "led4:amber", .gpio = GPIO_PIN_PB(14), },
-	{ .name = "led5:amber", .gpio = GPIO_PIN_PB(15), },
-	{ .name = "led6:amber", .gpio = GPIO_PIN_PB(16), },
-	{ .name = "led7:amber", .gpio = GPIO_PIN_PB(30),
-			.default_trigger = "heartbeat", },
-#else	/* RGB */
-#define LEDSTRING "J2 jumpered to RGB LEDs"
-	{ .name = "r1:red",     .gpio = GPIO_PIN_PB( 8), },
-	{ .name = "g1:green",   .gpio = GPIO_PIN_PB(10), },
-	{ .name = "b1:blue",    .gpio = GPIO_PIN_PB(14), },
-
-	{ .name = "r2:red",     .gpio = GPIO_PIN_PB( 9),
-			.default_trigger = "heartbeat", },
-	{ .name = "g2:green",   .gpio = GPIO_PIN_PB(13), },
-	{ .name = "b2:blue",    .gpio = GPIO_PIN_PB(15),
-			.default_trigger = "heartbeat", },
-	/* PB16, PB30 unused */
-#endif
-};
-
-static struct gpio_led_platform_data stk_j2_led_data = {
-	.num_leds	= ARRAY_SIZE(stk_j2_led),
-	.leds		= stk_j2_led,
-};
-
-static struct platform_device stk_j2_led_dev = {
-	.name		= "leds-gpio",
-	.id		= 2,	/* gpio block J2 */
-	.dev		= {
-		.platform_data	= &stk_j2_led_data,
-	},
-};
-
-static void setup_j2_leds(void)
-{
-	unsigned	i;
-
-	for (i = 0; i < ARRAY_SIZE(stk_j2_led); i++)
-		at32_select_gpio(stk_j2_led[i].gpio, AT32_GPIOF_OUTPUT);
-
-	printk("STK1002: " LEDSTRING "\n");
-	platform_device_register(&stk_j2_led_dev);
-}
-
-#else
-static void setup_j2_leds(void)
-{
-}
-#endif
-
 #ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
 #ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
 static void __init at73c213_set_clk(struct at73c213_board_info *info)
@@ -298,7 +238,7 @@ static int __init atstk1002_init(void)
 	at32_add_device_ssc(0, ATMEL_SSC_TX);
 #endif
 
-	setup_j2_leds();
+	atstk1000_setup_j2_leds();
 
 #ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
 #ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
diff --git a/arch/avr32/boards/atstk1000/setup.c b/arch/avr32/boards/atstk1000/setup.c
index c9af409ada9a..8bedf93876a3 100644
--- a/arch/avr32/boards/atstk1000/setup.c
+++ b/arch/avr32/boards/atstk1000/setup.c
@@ -10,13 +10,17 @@
 #include <linux/bootmem.h>
 #include <linux/fb.h>
 #include <linux/init.h>
+#include <linux/platform_device.h>
 #include <linux/types.h>
 #include <linux/linkage.h>
 
 #include <video/atmel_lcdc.h>
 
 #include <asm/setup.h>
+
+#include <asm/arch/at32ap700x.h>
 #include <asm/arch/board.h>
+#include <asm/arch/portmux.h>
 
 #include "atstk1000.h"
 
@@ -61,3 +65,63 @@ struct atmel_lcdfb_info __initdata atstk1000_lcdc_data = {
 	.default_monspecs	= &atstk1000_default_monspecs,
 	.guard_time		= 2,
 };
+
+#ifdef CONFIG_BOARD_ATSTK1000_J2_LED
+#include <linux/leds.h>
+
+static struct gpio_led stk1000_j2_led[] = {
+#ifdef CONFIG_BOARD_ATSTK1000_J2_LED8
+#define LEDSTRING "J2 jumpered to LED8"
+	{ .name = "led0:amber", .gpio = GPIO_PIN_PB( 8), },
+	{ .name = "led1:amber", .gpio = GPIO_PIN_PB( 9), },
+	{ .name = "led2:amber", .gpio = GPIO_PIN_PB(10), },
+	{ .name = "led3:amber", .gpio = GPIO_PIN_PB(13), },
+	{ .name = "led4:amber", .gpio = GPIO_PIN_PB(14), },
+	{ .name = "led5:amber", .gpio = GPIO_PIN_PB(15), },
+	{ .name = "led6:amber", .gpio = GPIO_PIN_PB(16), },
+	{ .name = "led7:amber", .gpio = GPIO_PIN_PB(30),
+			.default_trigger = "heartbeat", },
+#else	/* RGB */
+#define LEDSTRING "J2 jumpered to RGB LEDs"
+	{ .name = "r1:red",     .gpio = GPIO_PIN_PB( 8), },
+	{ .name = "g1:green",   .gpio = GPIO_PIN_PB(10), },
+	{ .name = "b1:blue",    .gpio = GPIO_PIN_PB(14), },
+
+	{ .name = "r2:red",     .gpio = GPIO_PIN_PB( 9),
+			.default_trigger = "heartbeat", },
+	{ .name = "g2:green",   .gpio = GPIO_PIN_PB(13), },
+	{ .name = "b2:blue",    .gpio = GPIO_PIN_PB(15),
+			.default_trigger = "heartbeat", },
+	/* PB16, PB30 unused */
+#endif
+};
+
+static struct gpio_led_platform_data stk1000_j2_led_data = {
+	.num_leds	= ARRAY_SIZE(stk1000_j2_led),
+	.leds		= stk1000_j2_led,
+};
+
+static struct platform_device stk1000_j2_led_dev = {
+	.name		= "leds-gpio",
+	.id		= 2,	/* gpio block J2 */
+	.dev		= {
+		.platform_data	= &stk1000_j2_led_data,
+	},
+};
+
+void __init atstk1000_setup_j2_leds(void)
+{
+	unsigned	i;
+
+	for (i = 0; i < ARRAY_SIZE(stk1000_j2_led); i++)
+		at32_select_gpio(stk1000_j2_led[i].gpio, AT32_GPIOF_OUTPUT);
+
+	printk("STK1000: " LEDSTRING "\n");
+	platform_device_register(&stk1000_j2_led_dev);
+}
+#else /* CONFIG_BOARD_ATSTK1000_J2_LED */
+void __init atstk1000_setup_j2_leds(void)
+{
+
+}
+#endif /* CONFIG_BOARD_ATSTK1000_J2_LED */
-- 
cgit v1.2.3-59-g8ed1b


From 64d81052671bc2e66efd46251883f5e8e3043db9 Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Mon, 29 Oct 2007 16:24:09 +0100
Subject: [AVR32] Clean up external DAC setup code

Reduce the ridiculous amount of #ifdef clutter in atstk1002.c a bit by
moving all the extdac stuff into its own function and providing an
empty stub for the case when it isn't wanted.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/boards/atstk1000/Kconfig     |  5 +++++
 arch/avr32/boards/atstk1000/atstk1002.c | 28 ++++++++++++----------------
 2 files changed, 17 insertions(+), 16 deletions(-)

(limited to 'arch')

diff --git a/arch/avr32/boards/atstk1000/Kconfig b/arch/avr32/boards/atstk1000/Kconfig
index dcf9e9e2b289..23e8c84f0237 100644
--- a/arch/avr32/boards/atstk1000/Kconfig
+++ b/arch/avr32/boards/atstk1000/Kconfig
@@ -76,4 +76,9 @@ config BOARD_ATSTK1000_J2_RGB
 
 endchoice
 
+config BOARD_ATSTK1000_EXTDAC
+	bool
+	depends on !BOARD_ATSTK1002_SW1_CUSTOM && !BOARD_ATSTK1002_SW3_CUSTOM
+	default y
+
 endif	# stk 1002
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index 2481d2389873..57f610ea30df 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -48,18 +48,16 @@ static struct eth_platform_data __initdata eth_data[2] = {
 	},
 };
 
-#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
-#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
 static struct at73c213_board_info at73c213_data = {
 	.ssc_id		= 0,
 	.shortname	= "AVR32 STK1000 external DAC",
 };
 #endif
-#endif
 
 #ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
 static struct spi_board_info spi0_board_info[] __initdata = {
-#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
 	{
 		/* AT73C213 */
 		.modalias	= "at73c213",
@@ -140,9 +138,8 @@ static void __init set_hw_addr(struct platform_device *pdev)
 	clk_put(pclk);
 }
 
-#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
-#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
-static void __init at73c213_set_clk(struct at73c213_board_info *info)
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+static void __init atstk1002_setup_extdac(void)
 {
 	struct clk *gclk;
 	struct clk *pll;
@@ -160,7 +157,7 @@ static void __init at73c213_set_clk(struct at73c213_board_info *info)
 	}
 
 	at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
-	info->dac_clk = gclk;
+	at73c213_data.dac_clk = gclk;
 
 err_set_clk:
 	clk_put(pll);
@@ -169,8 +166,12 @@ err_pll:
 err_gclk:
 	return;
 }
-#endif
-#endif
+#else
+static void __init atstk1002_setup_extdac(void)
+{
+
+}
+#endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
 
 void __init setup_board(void)
 {
@@ -239,12 +240,7 @@ static int __init atstk1002_init(void)
 #endif
 
 	atstk1000_setup_j2_leds();
-
-#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
-#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
-	at73c213_set_clk(&at73c213_data);
-#endif
-#endif
+	atstk1002_setup_extdac();
 
 	return 0;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 78693e47a285dbfafabc85a42797660e4fe2967b Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Mon, 29 Oct 2007 17:03:26 +0100
Subject: [AVR32] Add support for ATSTK1003 and ATSTK1004

ATSTK1003 and ATSTK1004 are CPU daughterboards for ATSTK1000 featuring
the AT32AP7001 and AT32AP7002 CPUs, respectively.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/Kconfig                      |    6 +
 arch/avr32/boards/atstk1000/Kconfig     |   28 +-
 arch/avr32/boards/atstk1000/Makefile    |    2 +
 arch/avr32/boards/atstk1000/atstk1002.c |   14 +-
 arch/avr32/boards/atstk1000/atstk1003.c |  162 +++++
 arch/avr32/boards/atstk1000/atstk1004.c |  147 +++++
 arch/avr32/configs/atstk1003_defconfig  | 1015 +++++++++++++++++++++++++++++++
 arch/avr32/configs/atstk1004_defconfig  |  621 +++++++++++++++++++
 8 files changed, 1975 insertions(+), 20 deletions(-)
 create mode 100644 arch/avr32/boards/atstk1000/atstk1003.c
 create mode 100644 arch/avr32/boards/atstk1000/atstk1004.c
 create mode 100644 arch/avr32/configs/atstk1003_defconfig
 create mode 100644 arch/avr32/configs/atstk1004_defconfig

(limited to 'arch')

diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index e37e6b92658d..52283f76c304 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -110,6 +110,10 @@ endchoice
 # CPU Daughterboards for ATSTK1000
 config BOARD_ATSTK1002
 	bool
+config BOARD_ATSTK1003
+	bool
+config BOARD_ATSTK1004
+	bool
 
 choice
 	prompt "AVR32 board type"
@@ -118,6 +122,8 @@ choice
 config BOARD_ATSTK1000
 	bool "ATSTK1000 evaluation board"
 	select BOARD_ATSTK1002 if CPU_AT32AP7000
+	select BOARD_ATSTK1003 if CPU_AT32AP7001
+	select BOARD_ATSTK1004 if CPU_AT32AP7002
 
 config BOARD_ATNGW100
 	bool "ATNGW100 Network Gateway"
diff --git a/arch/avr32/boards/atstk1000/Kconfig b/arch/avr32/boards/atstk1000/Kconfig
index 23e8c84f0237..28c47802a560 100644
--- a/arch/avr32/boards/atstk1000/Kconfig
+++ b/arch/avr32/boards/atstk1000/Kconfig
@@ -1,34 +1,34 @@
 # STK1000 customization
 
-if BOARD_ATSTK1002
+if BOARD_ATSTK1000
 
-config BOARD_ATSTK1002_CUSTOM
-	bool "Non-default STK-1002 jumper settings"
+config BOARD_ATSTK100X_CUSTOM
+	bool "Non-default STK1002/STK1003/STK1004 jumper settings"
 	help
 	  You will normally leave the jumpers on the CPU card at their
 	  default settings.  If you need to use certain peripherals,
 	  you will need to change some of those jumpers.
 
-if BOARD_ATSTK1002_CUSTOM
+if BOARD_ATSTK100X_CUSTOM
 
-config BOARD_ATSTK1002_SW1_CUSTOM
+config BOARD_ATSTK100X_SW1_CUSTOM
 	bool "SW1: use SSC1 (not SPI0)"
 	help
 	  This also prevents using the external DAC as an audio interface,
 	  and means you can't initialize the on-board QVGA display.
 
-config BOARD_ATSTK1002_SW2_CUSTOM
+config BOARD_ATSTK100X_SW2_CUSTOM
 	bool "SW2: use IRDA or TIMER0 (not UART-A, MMC/SD, and PS2-A)"
 	help
 	  If you change this you'll want an updated boot loader putting
 	  the console on UART-C not UART-A.
 
-config BOARD_ATSTK1002_SW3_CUSTOM
+config BOARD_ATSTK100X_SW3_CUSTOM
 	bool "SW3: use TIMER1 (not SSC0 and GCLK)"
 	help
 	  This also prevents using the external DAC as an audio interface.
 
-config BOARD_ATSTK1002_SW4_CUSTOM
+config BOARD_ATSTK100X_SW4_CUSTOM
 	bool "SW4: use ISI/Camera (not GPIOs, SPI1, and PS2-B)"
 	help
 	  To use the camera interface you'll need a custom card (on the
@@ -36,15 +36,17 @@ config BOARD_ATSTK1002_SW4_CUSTOM
 
 config BOARD_ATSTK1002_SW5_CUSTOM
 	bool "SW5: use MACB1 (not LCDC)"
+	depends on BOARD_ATSTK1002
 
 config BOARD_ATSTK1002_SW6_CUSTOM
 	bool "SW6: more GPIOs (not MACB0)"
+	depends on BOARD_ATSTK1002
 
 endif	# custom
 
-config BOARD_ATSTK1002_SPI1
+config BOARD_ATSTK100X_SPI1
 	bool "Configure SPI1 controller"
-	depends on !BOARD_ATSTK1002_SW4_CUSTOM
+	depends on !BOARD_ATSTK100X_SW4_CUSTOM
 	help
 	  All the signals for the second SPI controller are available on
 	  GPIO lines and accessed through the J1 jumper block.  Say "y"
@@ -56,7 +58,7 @@ config BOARD_ATSTK1000_J2_LED
 
 choice
 	prompt "LEDs connected to J2:"
-	depends on LEDS_GPIO && !BOARD_ATSTK1002_SW4_CUSTOM
+	depends on LEDS_GPIO && !BOARD_ATSTK100X_SW4_CUSTOM
 	optional
 	help
 	  Select this if you have jumpered the J2 jumper block to the
@@ -78,7 +80,7 @@ endchoice
 
 config BOARD_ATSTK1000_EXTDAC
 	bool
-	depends on !BOARD_ATSTK1002_SW1_CUSTOM && !BOARD_ATSTK1002_SW3_CUSTOM
+	depends on !BOARD_ATSTK100X_SW1_CUSTOM && !BOARD_ATSTK100X_SW3_CUSTOM
 	default y
 
-endif	# stk 1002
+endif	# stk 1000
diff --git a/arch/avr32/boards/atstk1000/Makefile b/arch/avr32/boards/atstk1000/Makefile
index 8e0992201bb9..beead86462e8 100644
--- a/arch/avr32/boards/atstk1000/Makefile
+++ b/arch/avr32/boards/atstk1000/Makefile
@@ -1,2 +1,4 @@
 obj-y				+= setup.o flash.o
 obj-$(CONFIG_BOARD_ATSTK1002)	+= atstk1002.o
+obj-$(CONFIG_BOARD_ATSTK1003)	+= atstk1003.o
+obj-$(CONFIG_BOARD_ATSTK1004)	+= atstk1004.o
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index 57f610ea30df..000eb4220a12 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -55,7 +55,7 @@ static struct at73c213_board_info at73c213_data = {
 };
 #endif
 
-#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
 static struct spi_board_info spi0_board_info[] __initdata = {
 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
 	{
@@ -77,7 +77,7 @@ static struct spi_board_info spi0_board_info[] __initdata = {
 };
 #endif
 
-#ifdef CONFIG_BOARD_ATSTK1002_SPI1
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
 static struct spi_board_info spi1_board_info[] __initdata = { {
 	/* patch in custom entries here */
 } };
@@ -175,7 +175,7 @@ static void __init atstk1002_setup_extdac(void)
 
 void __init setup_board(void)
 {
-#ifdef	CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
 	at32_map_usart(0, 1);	/* USART 0/B: /dev/ttyS1, IRDA */
 #else
 	at32_map_usart(1, 0);	/* USART 1/A: /dev/ttyS0, DB9 */
@@ -212,7 +212,7 @@ static int __init atstk1002_init(void)
 
 	at32_add_system_devices();
 
-#ifdef	CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
 	at32_add_device_usart(1);
 #else
 	at32_add_device_usart(0);
@@ -222,10 +222,10 @@ static int __init atstk1002_init(void)
 #ifndef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM
 	set_hw_addr(at32_add_device_eth(0, &eth_data[0]));
 #endif
-#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
 	at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
 #endif
-#ifdef CONFIG_BOARD_ATSTK1002_SPI1
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
 	at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
 #endif
 #ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM
@@ -235,7 +235,7 @@ static int __init atstk1002_init(void)
 			     fbmem_start, fbmem_size);
 #endif
 	at32_add_device_usba(0, NULL);
-#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
+#ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
 	at32_add_device_ssc(0, ATMEL_SSC_TX);
 #endif
 
diff --git a/arch/avr32/boards/atstk1000/atstk1003.c b/arch/avr32/boards/atstk1000/atstk1003.c
new file mode 100644
index 000000000000..a0b223df35a2
--- /dev/null
+++ b/arch/avr32/boards/atstk1000/atstk1003.c
@@ -0,0 +1,162 @@
+/*
+ * ATSTK1003 daughterboard-specific init code
+ *
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+#include <linux/spi/at73c213.h>
+#include <linux/spi/spi.h>
+
+#include <asm/setup.h>
+
+#include <asm/arch/at32ap700x.h>
+#include <asm/arch/board.h>
+#include <asm/arch/init.h>
+#include <asm/arch/portmux.h>
+
+#include "atstk1000.h"
+
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+static struct at73c213_board_info at73c213_data = {
+	.ssc_id		= 0,
+	.shortname	= "AVR32 STK1000 external DAC",
+};
+#endif
+
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
+static struct spi_board_info spi0_board_info[] __initdata = {
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+	{
+		/* AT73C213 */
+		.modalias	= "at73c213",
+		.max_speed_hz	= 200000,
+		.chip_select	= 0,
+		.mode		= SPI_MODE_1,
+		.platform_data	= &at73c213_data,
+	},
+#endif
+	/*
+	 * We can control the LTV350QV LCD panel, but it isn't much
+	 * point since we don't have an LCD controller...
+	 */
+};
+#endif
+
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
+static struct spi_board_info spi1_board_info[] __initdata = { {
+	/* patch in custom entries here */
+} };
+#endif
+
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+static void __init atstk1003_setup_extdac(void)
+{
+	struct clk *gclk;
+	struct clk *pll;
+
+	gclk = clk_get(NULL, "gclk0");
+	if (IS_ERR(gclk))
+		goto err_gclk;
+	pll = clk_get(NULL, "pll0");
+	if (IS_ERR(pll))
+		goto err_pll;
+
+	if (clk_set_parent(gclk, pll)) {
+		pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
+		goto err_set_clk;
+	}
+
+	at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
+	at73c213_data.dac_clk = gclk;
+
+err_set_clk:
+	clk_put(pll);
+err_pll:
+	clk_put(gclk);
+err_gclk:
+	return;
+}
+#else
+static void __init atstk1003_setup_extdac(void)
+{
+
+}
+#endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
+
+void __init setup_board(void)
+{
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_map_usart(0, 1);	/* USART 0/B: /dev/ttyS1, IRDA */
+#else
+	at32_map_usart(1, 0);	/* USART 1/A: /dev/ttyS0, DB9 */
+#endif
+	/* USART 2/unused: expansion connector */
+	at32_map_usart(3, 2);	/* USART 3/C: /dev/ttyS2, DB9 */
+
+	at32_setup_serial_console(0);
+}
+
+static int __init atstk1003_init(void)
+{
+	/*
+	 * ATSTK1000 uses 32-bit SDRAM interface. Reserve the
+	 * SDRAM-specific pins so that nobody messes with them.
+	 */
+	at32_reserve_pin(GPIO_PIN_PE(0));	/* DATA[16]	*/
+	at32_reserve_pin(GPIO_PIN_PE(1));	/* DATA[17]	*/
+	at32_reserve_pin(GPIO_PIN_PE(2));	/* DATA[18]	*/
+	at32_reserve_pin(GPIO_PIN_PE(3));	/* DATA[19]	*/
+	at32_reserve_pin(GPIO_PIN_PE(4));	/* DATA[20]	*/
+	at32_reserve_pin(GPIO_PIN_PE(5));	/* DATA[21]	*/
+	at32_reserve_pin(GPIO_PIN_PE(6));	/* DATA[22]	*/
+	at32_reserve_pin(GPIO_PIN_PE(7));	/* DATA[23]	*/
+	at32_reserve_pin(GPIO_PIN_PE(8));	/* DATA[24]	*/
+	at32_reserve_pin(GPIO_PIN_PE(9));	/* DATA[25]	*/
+	at32_reserve_pin(GPIO_PIN_PE(10));	/* DATA[26]	*/
+	at32_reserve_pin(GPIO_PIN_PE(11));	/* DATA[27]	*/
+	at32_reserve_pin(GPIO_PIN_PE(12));	/* DATA[28]	*/
+	at32_reserve_pin(GPIO_PIN_PE(13));	/* DATA[29]	*/
+	at32_reserve_pin(GPIO_PIN_PE(14));	/* DATA[30]	*/
+	at32_reserve_pin(GPIO_PIN_PE(15));	/* DATA[31]	*/
+	at32_reserve_pin(GPIO_PIN_PE(26));	/* SDCS		*/
+
+	at32_add_system_devices();
+
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_add_device_usart(1);
+#else
+	at32_add_device_usart(0);
+#endif
+	at32_add_device_usart(2);
+
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
+	at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
+#endif
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
+	at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
+#endif
+#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_add_device_mci(0);
+#endif
+	at32_add_device_usba(0, NULL);
+#ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
+	at32_add_device_ssc(0, ATMEL_SSC_TX);
+#endif
+
+	atstk1000_setup_j2_leds();
+	atstk1003_setup_extdac();
+
+	return 0;
+}
+postcore_initcall(atstk1003_init);
diff --git a/arch/avr32/boards/atstk1000/atstk1004.c b/arch/avr32/boards/atstk1000/atstk1004.c
new file mode 100644
index 000000000000..5a77030e07a0
--- /dev/null
+++ b/arch/avr32/boards/atstk1000/atstk1004.c
@@ -0,0 +1,147 @@
+/*
+ * ATSTK1003 daughterboard-specific init code
+ *
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+#include <linux/spi/at73c213.h>
+#include <linux/spi/spi.h>
+
+#include <video/atmel_lcdc.h>
+
+#include <asm/setup.h>
+
+#include <asm/arch/at32ap700x.h>
+#include <asm/arch/board.h>
+#include <asm/arch/init.h>
+#include <asm/arch/portmux.h>
+
+#include "atstk1000.h"
+
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+static struct at73c213_board_info at73c213_data = {
+	.ssc_id		= 0,
+	.shortname	= "AVR32 STK1000 external DAC",
+};
+#endif
+
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
+static struct spi_board_info spi0_board_info[] __initdata = {
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+	{
+		/* AT73C213 */
+		.modalias	= "at73c213",
+		.max_speed_hz	= 200000,
+		.chip_select	= 0,
+		.mode		= SPI_MODE_1,
+		.platform_data	= &at73c213_data,
+	},
+#endif
+	{
+		/* QVGA display */
+		.modalias	= "ltv350qv",
+		.max_speed_hz	= 16000000,
+		.chip_select	= 1,
+		.mode		= SPI_MODE_3,
+	},
+};
+#endif
+
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
+static struct spi_board_info spi1_board_info[] __initdata = { {
+	/* patch in custom entries here */
+} };
+#endif
+
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+static void __init atstk1004_setup_extdac(void)
+{
+	struct clk *gclk;
+	struct clk *pll;
+
+	gclk = clk_get(NULL, "gclk0");
+	if (IS_ERR(gclk))
+		goto err_gclk;
+	pll = clk_get(NULL, "pll0");
+	if (IS_ERR(pll))
+		goto err_pll;
+
+	if (clk_set_parent(gclk, pll)) {
+		pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
+		goto err_set_clk;
+	}
+
+	at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
+	at73c213_data.dac_clk = gclk;
+
+err_set_clk:
+	clk_put(pll);
+err_pll:
+	clk_put(gclk);
+err_gclk:
+	return;
+}
+#else
+static void __init atstk1004_setup_extdac(void)
+{
+
+}
+#endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
+
+void __init setup_board(void)
+{
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_map_usart(0, 1);	/* USART 0/B: /dev/ttyS1, IRDA */
+#else
+	at32_map_usart(1, 0);	/* USART 1/A: /dev/ttyS0, DB9 */
+#endif
+	/* USART 2/unused: expansion connector */
+	at32_map_usart(3, 2);	/* USART 3/C: /dev/ttyS2, DB9 */
+
+	at32_setup_serial_console(0);
+}
+
+static int __init atstk1004_init(void)
+{
+	at32_add_system_devices();
+
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_add_device_usart(1);
+#else
+	at32_add_device_usart(0);
+#endif
+	at32_add_device_usart(2);
+
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
+	at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
+#endif
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
+	at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
+#endif
+#ifndef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
+	at32_add_device_mci(0);
+#endif
+	at32_add_device_lcdc(0, &atstk1000_lcdc_data,
+			     fbmem_start, fbmem_size);
+	at32_add_device_usba(0, NULL);
+#ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
+	at32_add_device_ssc(0, ATMEL_SSC_TX);
+#endif
+
+	atstk1000_setup_j2_leds();
+	atstk1004_setup_extdac();
+
+	return 0;
+}
+postcore_initcall(atstk1004_init);
diff --git a/arch/avr32/configs/atstk1003_defconfig b/arch/avr32/configs/atstk1003_defconfig
new file mode 100644
index 000000000000..45e23e03f074
--- /dev/null
+++ b/arch/avr32/configs/atstk1003_defconfig
@@ -0,0 +1,1015 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.24-rc7
+# Wed Jan  9 22:54:34 2008
+#
+CONFIG_AVR32=y
+CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+CONFIG_GENERIC_TIME=y
+# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_SUPPORTS_OPROFILE=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_BUG=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SWAP=y
+CONFIG_SYSVIPC=y
+CONFIG_SYSVIPC_SYSCTL=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+# CONFIG_TASK_XACCT is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_AUDIT=y
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
+CONFIG_SYSFS_DEPRECATED=y
+CONFIG_RELAY=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+# CONFIG_SYSCTL_SYSCALL is not set
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_ALL is not set
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+# CONFIG_BASE_FULL is not set
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
+# CONFIG_SLOB is not set
+CONFIG_SLABINFO=y
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=1
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+# CONFIG_KMOD is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IOSCHED_AS is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+CONFIG_IOSCHED_CFQ=y
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
+
+#
+# System Type and features
+#
+CONFIG_SUBARCH_AVR32B=y
+CONFIG_MMU=y
+CONFIG_PERFORMANCE_COUNTERS=y
+CONFIG_PLATFORM_AT32AP=y
+CONFIG_CPU_AT32AP700X=y
+CONFIG_CPU_AT32AP7001=y
+CONFIG_BOARD_ATSTK1000=y
+# CONFIG_BOARD_ATNGW100 is not set
+# CONFIG_BOARD_ATSTK1002 is not set
+CONFIG_BOARD_ATSTK1003=y
+# CONFIG_BOARD_ATSTK1004 is not set
+# CONFIG_BOARD_ATSTK100X_CUSTOM is not set
+# CONFIG_BOARD_ATSTK100X_SPI1 is not set
+# CONFIG_BOARD_ATSTK1000_J2_LED is not set
+# CONFIG_BOARD_ATSTK1000_J2_LED8 is not set
+# CONFIG_BOARD_ATSTK1000_J2_RGB is not set
+CONFIG_BOARD_ATSTK1000_EXTDAC=y
+CONFIG_LOADER_U_BOOT=y
+
+#
+# Atmel AVR32 AP options
+#
+# CONFIG_AP700X_32_BIT_SMC is not set
+CONFIG_AP700X_16_BIT_SMC=y
+# CONFIG_AP700X_8_BIT_SMC is not set
+CONFIG_LOAD_ADDRESS=0x10000000
+CONFIG_ENTRY_ADDRESS=0x90000000
+CONFIG_PHYS_OFFSET=0x10000000
+CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_VOLUNTARY is not set
+# CONFIG_PREEMPT is not set
+# CONFIG_HAVE_ARCH_BOOTMEM_NODE is not set
+# CONFIG_ARCH_HAVE_MEMORY_PRESENT is not set
+# CONFIG_NEED_NODE_MEMMAP_SIZE is not set
+CONFIG_ARCH_FLATMEM_ENABLE=y
+# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
+# CONFIG_ARCH_SPARSEMEM_ENABLE is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=0
+CONFIG_VIRT_TO_BUS=y
+# CONFIG_OWNERSHIP_TRACE is not set
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=250
+CONFIG_CMDLINE=""
+
+#
+# Power management options
+#
+
+#
+# CPU Frequency scaling
+#
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_TABLE=y
+# CONFIG_CPU_FREQ_DEBUG is not set
+# CONFIG_CPU_FREQ_STAT is not set
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
+CONFIG_CPU_FREQ_AT32AP=y
+
+#
+# Bus options
+#
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+# CONFIG_PCCARD is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+CONFIG_PACKET_MMAP=y
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_NET_TCPPROBE is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_STANDALONE=y
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FW_LOADER is not set
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+CONFIG_MTD_CFI=y
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_GEN_PROBE=y
+# CONFIG_MTD_CFI_ADV_OPTIONS is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_CFI_INTELEXT is not set
+CONFIG_MTD_CFI_AMDSTD=y
+# CONFIG_MTD_CFI_STAA is not set
+CONFIG_MTD_CFI_UTIL=y
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_START=0x8000000
+CONFIG_MTD_PHYSMAP_LEN=0x0
+CONFIG_MTD_PHYSMAP_BANKWIDTH=2
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+CONFIG_MTD_DATAFLASH=m
+CONFIG_MTD_M25P80=m
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=m
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+CONFIG_BLK_DEV_NBD=m
+CONFIG_BLK_DEV_RAM=m
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_EEPROM_93CX6 is not set
+CONFIG_ATMEL_SSC=m
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+CONFIG_SCSI=m
+CONFIG_SCSI_DMA=y
+# CONFIG_SCSI_TGT is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_SCSI_PROC_FS is not set
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
+CONFIG_BLK_DEV_SD=m
+# CONFIG_CHR_DEV_ST is not set
+# CONFIG_CHR_DEV_OSST is not set
+CONFIG_BLK_DEV_SR=m
+# CONFIG_BLK_DEV_SR_VENDOR is not set
+# CONFIG_CHR_DEV_SG is not set
+# CONFIG_CHR_DEV_SCH is not set
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
+# CONFIG_SCSI_MULTI_LUN is not set
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+CONFIG_SCSI_WAIT_SCAN=m
+
+#
+# SCSI Transports
+#
+# CONFIG_SCSI_SPI_ATTRS is not set
+# CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+# CONFIG_SCSI_SRP_ATTRS is not set
+CONFIG_SCSI_LOWLEVEL=y
+# CONFIG_ISCSI_TCP is not set
+# CONFIG_SCSI_DEBUG is not set
+CONFIG_ATA=m
+# CONFIG_ATA_NONSTANDARD is not set
+CONFIG_PATA_AT32=m
+# CONFIG_PATA_PLATFORM is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_NET_ETHERNET is not set
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_WAN is not set
+CONFIG_PPP=m
+# CONFIG_PPP_MULTILINK is not set
+# CONFIG_PPP_FILTER is not set
+CONFIG_PPP_ASYNC=m
+# CONFIG_PPP_SYNC_TTY is not set
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_BSDCOMP=m
+# CONFIG_PPP_MPPE is not set
+# CONFIG_PPPOE is not set
+# CONFIG_PPPOL2TP is not set
+# CONFIG_SLIP is not set
+CONFIG_SLHC=m
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=m
+# CONFIG_INPUT_FF_MEMLESS is not set
+CONFIG_INPUT_POLLDEV=m
+
+#
+# Userland interfaces
+#
+CONFIG_INPUT_MOUSEDEV=m
+CONFIG_INPUT_MOUSEDEV_PSAUX=y
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+CONFIG_INPUT_KEYBOARD=y
+# CONFIG_KEYBOARD_ATKBD is not set
+# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_KEYBOARD_LKKBD is not set
+# CONFIG_KEYBOARD_XTKBD is not set
+# CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_KEYBOARD_STOWAWAY is not set
+CONFIG_KEYBOARD_GPIO=m
+CONFIG_INPUT_MOUSE=y
+# CONFIG_MOUSE_PS2 is not set
+# CONFIG_MOUSE_SERIAL is not set
+# CONFIG_MOUSE_VSXXXAA is not set
+CONFIG_MOUSE_GPIO=m
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_ATMEL=y
+CONFIG_SERIAL_ATMEL_CONSOLE=y
+# CONFIG_SERIAL_ATMEL_TTYAT is not set
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_RTC is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+CONFIG_I2C=m
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=m
+
+#
+# I2C Algorithms
+#
+CONFIG_I2C_ALGOBIT=m
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALGOPCA is not set
+
+#
+# I2C Hardware Bus support
+#
+CONFIG_I2C_GPIO=m
+# CONFIG_I2C_OCORES is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_TAOS_EVM is not set
+# CONFIG_I2C_STUB is not set
+
+#
+# Miscellaneous I2C Chip support
+#
+# CONFIG_SENSORS_DS1337 is not set
+# CONFIG_SENSORS_DS1374 is not set
+# CONFIG_DS1682 is not set
+# CONFIG_SENSORS_EEPROM is not set
+# CONFIG_SENSORS_PCF8574 is not set
+# CONFIG_SENSORS_PCA9539 is not set
+# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_MAX6875 is not set
+# CONFIG_SENSORS_TSL2550 is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
+# CONFIG_I2C_DEBUG_CHIP is not set
+
+#
+# SPI support
+#
+CONFIG_SPI=y
+# CONFIG_SPI_DEBUG is not set
+CONFIG_SPI_MASTER=y
+
+#
+# SPI Master Controller Drivers
+#
+CONFIG_SPI_ATMEL=y
+# CONFIG_SPI_BITBANG is not set
+
+#
+# SPI Protocol Masters
+#
+# CONFIG_SPI_AT25 is not set
+CONFIG_SPI_SPIDEV=m
+# CONFIG_SPI_TLE62X0 is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
+
+#
+# Watchdog Device Drivers
+#
+# CONFIG_SOFT_WATCHDOG is not set
+CONFIG_AT32AP700X_WDT=y
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_DAB is not set
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Sound
+#
+CONFIG_SOUND=m
+
+#
+# Advanced Linux Sound Architecture
+#
+CONFIG_SND=m
+CONFIG_SND_TIMER=m
+CONFIG_SND_PCM=m
+# CONFIG_SND_SEQUENCER is not set
+CONFIG_SND_OSSEMUL=y
+CONFIG_SND_MIXER_OSS=m
+CONFIG_SND_PCM_OSS=m
+CONFIG_SND_PCM_OSS_PLUGINS=y
+# CONFIG_SND_DYNAMIC_MINORS is not set
+CONFIG_SND_SUPPORT_OLD_API=y
+CONFIG_SND_VERBOSE_PROCFS=y
+# CONFIG_SND_VERBOSE_PRINTK is not set
+# CONFIG_SND_DEBUG is not set
+
+#
+# Generic devices
+#
+# CONFIG_SND_DUMMY is not set
+# CONFIG_SND_MTPAV is not set
+# CONFIG_SND_SERIAL_U16550 is not set
+# CONFIG_SND_MPU401 is not set
+
+#
+# SPI devices
+#
+CONFIG_SND_AT73C213=m
+CONFIG_SND_AT73C213_TARGET_BITRATE=48000
+
+#
+# System on Chip audio support
+#
+# CONFIG_SND_SOC is not set
+
+#
+# SoC Audio support for SuperH
+#
+
+#
+# Open Sound System
+#
+# CONFIG_SOUND_PRIME is not set
+# CONFIG_HID_SUPPORT is not set
+CONFIG_USB_SUPPORT=y
+# CONFIG_USB_ARCH_HAS_HCD is not set
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# USB Gadget Support
+#
+CONFIG_USB_GADGET=y
+# CONFIG_USB_GADGET_DEBUG is not set
+# CONFIG_USB_GADGET_DEBUG_FILES is not set
+CONFIG_USB_GADGET_DEBUG_FS=y
+CONFIG_USB_GADGET_SELECTED=y
+# CONFIG_USB_GADGET_AMD5536UDC is not set
+CONFIG_USB_GADGET_ATMEL_USBA=y
+CONFIG_USB_ATMEL_USBA=y
+# CONFIG_USB_GADGET_FSL_USB2 is not set
+# CONFIG_USB_GADGET_NET2280 is not set
+# CONFIG_USB_GADGET_PXA2XX is not set
+# CONFIG_USB_GADGET_M66592 is not set
+# CONFIG_USB_GADGET_GOKU is not set
+# CONFIG_USB_GADGET_LH7A40X is not set
+# CONFIG_USB_GADGET_OMAP is not set
+# CONFIG_USB_GADGET_S3C2410 is not set
+# CONFIG_USB_GADGET_AT91 is not set
+# CONFIG_USB_GADGET_DUMMY_HCD is not set
+CONFIG_USB_GADGET_DUALSPEED=y
+CONFIG_USB_ZERO=m
+CONFIG_USB_ETH=m
+CONFIG_USB_ETH_RNDIS=y
+CONFIG_USB_GADGETFS=m
+CONFIG_USB_FILE_STORAGE=m
+# CONFIG_USB_FILE_STORAGE_TEST is not set
+CONFIG_USB_G_SERIAL=m
+# CONFIG_USB_MIDI_GADGET is not set
+CONFIG_MMC=m
+# CONFIG_MMC_DEBUG is not set
+# CONFIG_MMC_UNSAFE_RESUME is not set
+
+#
+# MMC/SD Card Drivers
+#
+CONFIG_MMC_BLOCK=m
+# CONFIG_MMC_BLOCK_BOUNCE is not set
+# CONFIG_SDIO_UART is not set
+
+#
+# MMC/SD Host Controller Drivers
+#
+CONFIG_MMC_SPI=m
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+
+#
+# LED drivers
+#
+CONFIG_LEDS_GPIO=y
+
+#
+# LED Triggers
+#
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+# CONFIG_RTC_DEBUG is not set
+
+#
+# RTC interfaces
+#
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+# CONFIG_RTC_DRV_TEST is not set
+
+#
+# I2C RTC drivers
+#
+# CONFIG_RTC_DRV_DS1307 is not set
+# CONFIG_RTC_DRV_DS1374 is not set
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+# CONFIG_RTC_DRV_RS5C372 is not set
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
+
+#
+# SPI RTC drivers
+#
+# CONFIG_RTC_DRV_RS5C348 is not set
+# CONFIG_RTC_DRV_MAX6902 is not set
+
+#
+# Platform RTC drivers
+#
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
+
+#
+# on-CPU RTC drivers
+#
+CONFIG_RTC_DRV_AT32AP700X=y
+
+#
+# Userspace I/O
+#
+CONFIG_UIO=m
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=m
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+CONFIG_EXT3_FS=m
+# CONFIG_EXT3_FS_XATTR is not set
+# CONFIG_EXT4DEV_FS is not set
+CONFIG_JBD=m
+# CONFIG_JBD_DEBUG is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_QUOTA is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+CONFIG_FUSE_FS=m
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+CONFIG_FAT_FS=m
+CONFIG_MSDOS_FS=m
+CONFIG_VFAT_FS=m
+CONFIG_FAT_DEFAULT_CODEPAGE=437
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+# CONFIG_HUGETLB_PAGE is not set
+CONFIG_CONFIGFS_FS=m
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_FS_DEBUG=0
+CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
+# CONFIG_JFFS2_SUMMARY is not set
+# CONFIG_JFFS2_FS_XATTR is not set
+# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
+CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS2_LZO is not set
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+# CONFIG_NETWORK_FILESYSTEMS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+CONFIG_NLS=m
+CONFIG_NLS_DEFAULT="iso8859-1"
+CONFIG_NLS_CODEPAGE_437=m
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+# CONFIG_NLS_CODEPAGE_850 is not set
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+# CONFIG_NLS_ASCII is not set
+CONFIG_NLS_ISO8859_1=m
+# CONFIG_NLS_ISO8859_2 is not set
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+# CONFIG_NLS_ISO8859_15 is not set
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+CONFIG_NLS_UTF8=m
+# CONFIG_DLM is not set
+CONFIG_INSTRUMENTATION=y
+CONFIG_PROFILING=y
+CONFIG_OPROFILE=m
+CONFIG_KPROBES=y
+# CONFIG_MARKERS is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
+# CONFIG_SCHEDSTATS is not set
+# CONFIG_TIMER_STATS is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_LOCK_ALLOC is not set
+# CONFIG_PROVE_LOCKING is not set
+# CONFIG_LOCK_STAT is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+# CONFIG_DEBUG_INFO is not set
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
+CONFIG_FRAME_POINTER=y
+CONFIG_FORCED_INLINING=y
+# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_LKDTM is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_SAMPLES is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+CONFIG_CRC_CCITT=m
+# CONFIG_CRC16 is not set
+CONFIG_CRC_ITU_T=m
+CONFIG_CRC32=y
+CONFIG_CRC7=m
+# CONFIG_LIBCRC32C is not set
+CONFIG_AUDIT_GENERIC=y
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
diff --git a/arch/avr32/configs/atstk1004_defconfig b/arch/avr32/configs/atstk1004_defconfig
new file mode 100644
index 000000000000..634c52760349
--- /dev/null
+++ b/arch/avr32/configs/atstk1004_defconfig
@@ -0,0 +1,621 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.24-rc7
+# Wed Jan  9 23:04:20 2008
+#
+CONFIG_AVR32=y
+CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+CONFIG_GENERIC_TIME=y
+# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_SUPPORTS_OPROFILE=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_BUG=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+# CONFIG_LOCALVERSION_AUTO is not set
+# CONFIG_SYSVIPC is not set
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+# CONFIG_FAIR_GROUP_SCHED is not set
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+# CONFIG_SYSCTL_SYSCALL is not set
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+# CONFIG_BASE_FULL is not set
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_EVENTFD is not set
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+# CONFIG_SLAB is not set
+# CONFIG_SLUB is not set
+CONFIG_SLOB=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=1
+# CONFIG_MODULES is not set
+# CONFIG_BLOCK is not set
+
+#
+# System Type and features
+#
+CONFIG_SUBARCH_AVR32B=y
+CONFIG_MMU=y
+CONFIG_PERFORMANCE_COUNTERS=y
+CONFIG_PLATFORM_AT32AP=y
+CONFIG_CPU_AT32AP700X=y
+CONFIG_CPU_AT32AP7002=y
+CONFIG_BOARD_ATSTK1000=y
+# CONFIG_BOARD_ATNGW100 is not set
+# CONFIG_BOARD_ATSTK1002 is not set
+# CONFIG_BOARD_ATSTK1003 is not set
+CONFIG_BOARD_ATSTK1004=y
+# CONFIG_BOARD_ATSTK100X_CUSTOM is not set
+# CONFIG_BOARD_ATSTK100X_SPI1 is not set
+# CONFIG_BOARD_ATSTK1000_J2_LED is not set
+CONFIG_BOARD_ATSTK1000_EXTDAC=y
+CONFIG_LOADER_U_BOOT=y
+
+#
+# Atmel AVR32 AP options
+#
+# CONFIG_AP700X_32_BIT_SMC is not set
+CONFIG_AP700X_16_BIT_SMC=y
+# CONFIG_AP700X_8_BIT_SMC is not set
+CONFIG_LOAD_ADDRESS=0x10000000
+CONFIG_ENTRY_ADDRESS=0x90000000
+CONFIG_PHYS_OFFSET=0x10000000
+CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_VOLUNTARY is not set
+# CONFIG_PREEMPT is not set
+# CONFIG_HAVE_ARCH_BOOTMEM_NODE is not set
+# CONFIG_ARCH_HAVE_MEMORY_PRESENT is not set
+# CONFIG_NEED_NODE_MEMMAP_SIZE is not set
+CONFIG_ARCH_FLATMEM_ENABLE=y
+# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
+# CONFIG_ARCH_SPARSEMEM_ENABLE is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=0
+CONFIG_VIRT_TO_BUS=y
+# CONFIG_OWNERSHIP_TRACE is not set
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=250
+CONFIG_CMDLINE=""
+
+#
+# Power management options
+#
+
+#
+# CPU Frequency scaling
+#
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_TABLE=y
+# CONFIG_CPU_FREQ_DEBUG is not set
+# CONFIG_CPU_FREQ_STAT is not set
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
+CONFIG_CPU_FREQ_AT32AP=y
+
+#
+# Bus options
+#
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+# CONFIG_PCCARD is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+CONFIG_PACKET_MMAP=y
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_STANDALONE=y
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FW_LOADER is not set
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+CONFIG_MTD_CFI=y
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_GEN_PROBE=y
+# CONFIG_MTD_CFI_ADV_OPTIONS is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_CFI_INTELEXT is not set
+CONFIG_MTD_CFI_AMDSTD=y
+# CONFIG_MTD_CFI_STAA is not set
+CONFIG_MTD_CFI_UTIL=y
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_START=0x8000000
+CONFIG_MTD_PHYSMAP_LEN=0x0
+CONFIG_MTD_PHYSMAP_BANKWIDTH=2
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_DATAFLASH is not set
+# CONFIG_MTD_M25P80 is not set
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+# CONFIG_MISC_DEVICES is not set
+
+#
+# SCSI device support
+#
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_NETDEVICES is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_ATMEL=y
+CONFIG_SERIAL_ATMEL_CONSOLE=y
+# CONFIG_SERIAL_ATMEL_TTYAT is not set
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_RTC is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_R3964 is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_I2C is not set
+
+#
+# SPI support
+#
+CONFIG_SPI=y
+CONFIG_SPI_MASTER=y
+
+#
+# SPI Master Controller Drivers
+#
+CONFIG_SPI_ATMEL=y
+# CONFIG_SPI_BITBANG is not set
+
+#
+# SPI Protocol Masters
+#
+# CONFIG_SPI_AT25 is not set
+# CONFIG_SPI_SPIDEV is not set
+# CONFIG_SPI_TLE62X0 is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
+
+#
+# Watchdog Device Drivers
+#
+# CONFIG_SOFT_WATCHDOG is not set
+CONFIG_AT32AP700X_WDT=y
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_DAB is not set
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+CONFIG_FB=y
+# CONFIG_FIRMWARE_EDID is not set
+# CONFIG_FB_DDC is not set
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_SYS_FOPS is not set
+CONFIG_FB_DEFERRED_IO=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+# CONFIG_FB_MODE_HELPERS is not set
+# CONFIG_FB_TILEBLITTING is not set
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_S1D13XXX is not set
+CONFIG_FB_ATMEL=y
+# CONFIG_FB_VIRTUAL is not set
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+CONFIG_LCD_CLASS_DEVICE=y
+CONFIG_LCD_LTV350QV=y
+# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+# CONFIG_LOGO is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+CONFIG_USB_SUPPORT=y
+# CONFIG_USB_ARCH_HAS_HCD is not set
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# USB Gadget Support
+#
+CONFIG_USB_GADGET=y
+# CONFIG_USB_GADGET_DEBUG_FILES is not set
+CONFIG_USB_GADGET_SELECTED=y
+# CONFIG_USB_GADGET_AMD5536UDC is not set
+CONFIG_USB_GADGET_ATMEL_USBA=y
+CONFIG_USB_ATMEL_USBA=y
+# CONFIG_USB_GADGET_FSL_USB2 is not set
+# CONFIG_USB_GADGET_NET2280 is not set
+# CONFIG_USB_GADGET_PXA2XX is not set
+# CONFIG_USB_GADGET_M66592 is not set
+# CONFIG_USB_GADGET_GOKU is not set
+# CONFIG_USB_GADGET_LH7A40X is not set
+# CONFIG_USB_GADGET_OMAP is not set
+# CONFIG_USB_GADGET_S3C2410 is not set
+# CONFIG_USB_GADGET_AT91 is not set
+# CONFIG_USB_GADGET_DUMMY_HCD is not set
+CONFIG_USB_GADGET_DUALSPEED=y
+# CONFIG_USB_ZERO is not set
+CONFIG_USB_ETH=y
+# CONFIG_USB_ETH_RNDIS is not set
+# CONFIG_USB_GADGETFS is not set
+# CONFIG_USB_FILE_STORAGE is not set
+# CONFIG_USB_G_SERIAL is not set
+# CONFIG_USB_MIDI_GADGET is not set
+# CONFIG_MMC is not set
+# CONFIG_NEW_LEDS is not set
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+# CONFIG_RTC_DEBUG is not set
+
+#
+# RTC interfaces
+#
+CONFIG_RTC_INTF_SYSFS=y
+# CONFIG_RTC_INTF_PROC is not set
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+# CONFIG_RTC_DRV_TEST is not set
+
+#
+# SPI RTC drivers
+#
+# CONFIG_RTC_DRV_RS5C348 is not set
+# CONFIG_RTC_DRV_MAX6902 is not set
+
+#
+# Platform RTC drivers
+#
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
+
+#
+# on-CPU RTC drivers
+#
+CONFIG_RTC_DRV_AT32AP700X=y
+
+#
+# Userspace I/O
+#
+# CONFIG_UIO is not set
+
+#
+# File systems
+#
+# CONFIG_INOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_FS_DEBUG=0
+# CONFIG_JFFS2_FS_WRITEBUFFER is not set
+# CONFIG_JFFS2_SUMMARY is not set
+# CONFIG_JFFS2_FS_XATTR is not set
+# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
+CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS2_LZO is not set
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
+# CONFIG_NETWORK_FILESYSTEMS is not set
+# CONFIG_NLS is not set
+# CONFIG_DLM is not set
+# CONFIG_INSTRUMENTATION is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_HEADERS_CHECK is not set
+# CONFIG_DEBUG_KERNEL is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_SAMPLES is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
-- 
cgit v1.2.3-59-g8ed1b


From e8897bfef2b056a527df21b25b602c59dbbad67a Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Thu, 29 Nov 2007 11:15:15 +0100
Subject: [AVR32] Kconfig: Choose daughterboard instead of CPU

Remove the CPU selection menu and instead let it be selected by the
board or daughterboard option. Add daughterboard selection for
ATSTK1000 (this was previously determined based on CPU type.)

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/Kconfig                  | 33 +++++++++------------------------
 arch/avr32/boards/atstk1000/Kconfig | 19 +++++++++++++++++++
 2 files changed, 28 insertions(+), 24 deletions(-)

(limited to 'arch')

diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 52283f76c304..516015b3293b 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -84,36 +84,23 @@ config PLATFORM_AT32AP
 	select MMU
 	select PERFORMANCE_COUNTERS
 
+#
+# CPU types
+#
+
+# AP7000 derivatives
 config CPU_AT32AP700X
 	bool
 	select PLATFORM_AT32AP
-
-choice
-	prompt "AVR32 CPU type"
-	default CPU_AT32AP7000
-
 config CPU_AT32AP7000
-	bool "AT32AP7000"
+	bool
 	select CPU_AT32AP700X
-
 config CPU_AT32AP7001
-	bool "AT32AP7001"
+	bool
 	select CPU_AT32AP700X
-
 config CPU_AT32AP7002
-	bool "AT32AP7002"
-	select CPU_AT32AP700X
-
-endchoice
-
-#
-# CPU Daughterboards for ATSTK1000
-config BOARD_ATSTK1002
-	bool
-config BOARD_ATSTK1003
-	bool
-config BOARD_ATSTK1004
 	bool
+	select CPU_AT32AP700X
 
 choice
 	prompt "AVR32 board type"
@@ -121,12 +108,10 @@ choice
 
 config BOARD_ATSTK1000
 	bool "ATSTK1000 evaluation board"
-	select BOARD_ATSTK1002 if CPU_AT32AP7000
-	select BOARD_ATSTK1003 if CPU_AT32AP7001
-	select BOARD_ATSTK1004 if CPU_AT32AP7002
 
 config BOARD_ATNGW100
 	bool "ATNGW100 Network Gateway"
+	select CPU_AT32AP7000
 endchoice
 
 if BOARD_ATSTK1000
diff --git a/arch/avr32/boards/atstk1000/Kconfig b/arch/avr32/boards/atstk1000/Kconfig
index 28c47802a560..af90b00100fd 100644
--- a/arch/avr32/boards/atstk1000/Kconfig
+++ b/arch/avr32/boards/atstk1000/Kconfig
@@ -2,6 +2,25 @@
 
 if BOARD_ATSTK1000
 
+choice
+	prompt "ATSTK1000 CPU daughterboard type"
+	default BOARD_ATSTK1002
+
+config BOARD_ATSTK1002
+	bool "ATSTK1002"
+	select CPU_AT32AP7000
+
+config BOARD_ATSTK1003
+	bool "ATSTK1003"
+	select CPU_AT32AP7001
+
+config BOARD_ATSTK1004
+	bool "ATSTK1004"
+	select CPU_AT32AP7002
+
+endchoice
+
+
 config BOARD_ATSTK100X_CUSTOM
 	bool "Non-default STK1002/STK1003/STK1004 jumper settings"
 	help
-- 
cgit v1.2.3-59-g8ed1b


From f141035decdf8e3ce498991deee3984cb47426bf Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Wed, 9 Jan 2008 22:45:05 +0100
Subject: [AVR32] ATSTK1002: Update defconfig

Turn off a few useless options, enable a few useful ones and enable
quite a few new drivers.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/configs/atstk1002_defconfig | 633 +++++++++++++++++++++++++--------
 1 file changed, 483 insertions(+), 150 deletions(-)

(limited to 'arch')

diff --git a/arch/avr32/configs/atstk1002_defconfig b/arch/avr32/configs/atstk1002_defconfig
index 7614c5465cd6..2fb2ede5f2b4 100644
--- a/arch/avr32/configs/atstk1002_defconfig
+++ b/arch/avr32/configs/atstk1002_defconfig
@@ -1,48 +1,48 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22-rc5
-# Sat Jun 23 15:32:08 2007
+# Linux kernel version: 2.6.24-rc7
+# Wed Jan  9 23:07:43 2008
 #
 CONFIG_AVR32=y
 CONFIG_GENERIC_GPIO=y
 CONFIG_GENERIC_HARDIRQS=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
 CONFIG_HARDIRQS_SW_RESEND=y
 CONFIG_GENERIC_IRQ_PROBE=y
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
 CONFIG_GENERIC_TIME=y
+# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
 # CONFIG_ARCH_HAS_ILOG2_U32 is not set
 # CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_SUPPORTS_OPROFILE=y
 CONFIG_GENERIC_HWEIGHT=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_GENERIC_BUG=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
 #
-# Code maturity level options
+# General setup
 #
 CONFIG_EXPERIMENTAL=y
 CONFIG_BROKEN_ON_SMP=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
 CONFIG_LOCALVERSION=""
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
-# CONFIG_IPC_NS is not set
 CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_POSIX_MQUEUE=y
-CONFIG_BSD_PROCESS_ACCT=y
-CONFIG_BSD_PROCESS_ACCT_V3=y
-CONFIG_TASKSTATS=y
-CONFIG_TASK_DELAY_ACCT=y
-# CONFIG_TASK_XACCT is not set
-# CONFIG_UTS_NS is not set
-CONFIG_AUDIT=y
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+# CONFIG_AUDIT is not set
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+# CONFIG_FAIR_GROUP_SCHED is not set
 CONFIG_SYSFS_DEPRECATED=y
 CONFIG_RELAY=y
 CONFIG_BLK_DEV_INITRD=y
@@ -63,35 +63,28 @@ CONFIG_FUTEX=y
 CONFIG_ANON_INODES=y
 CONFIG_EPOLL=y
 CONFIG_SIGNALFD=y
-CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-# CONFIG_SLUB_DEBUG is not set
+CONFIG_SLUB_DEBUG=y
 # CONFIG_SLAB is not set
 CONFIG_SLUB=y
 # CONFIG_SLOB is not set
+CONFIG_SLABINFO=y
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
 CONFIG_BASE_SMALL=1
-
-#
-# Loadable module support
-#
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 # CONFIG_MODULE_FORCE_UNLOAD is not set
 # CONFIG_MODVERSIONS is not set
 # CONFIG_MODULE_SRCVERSION_ALL is not set
 # CONFIG_KMOD is not set
-
-#
-# Block layer
-#
 CONFIG_BLOCK=y
 # CONFIG_LBD is not set
 # CONFIG_BLK_DEV_IO_TRACE is not set
 # CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
 
 #
 # IO Schedulers
@@ -99,12 +92,12 @@ CONFIG_BLOCK=y
 CONFIG_IOSCHED_NOOP=y
 # CONFIG_IOSCHED_AS is not set
 # CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
+CONFIG_IOSCHED_CFQ=y
 # CONFIG_DEFAULT_AS is not set
 # CONFIG_DEFAULT_DEADLINE is not set
-# CONFIG_DEFAULT_CFQ is not set
-CONFIG_DEFAULT_NOOP=y
-CONFIG_DEFAULT_IOSCHED="noop"
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
 
 #
 # System Type and features
@@ -113,12 +106,19 @@ CONFIG_SUBARCH_AVR32B=y
 CONFIG_MMU=y
 CONFIG_PERFORMANCE_COUNTERS=y
 CONFIG_PLATFORM_AT32AP=y
+CONFIG_CPU_AT32AP700X=y
 CONFIG_CPU_AT32AP7000=y
-# CONFIG_CPU_AT32AP7001 is not set
-# CONFIG_CPU_AT32AP7002 is not set
-CONFIG_BOARD_ATSTK1002=y
 CONFIG_BOARD_ATSTK1000=y
 # CONFIG_BOARD_ATNGW100 is not set
+CONFIG_BOARD_ATSTK1002=y
+# CONFIG_BOARD_ATSTK1003 is not set
+# CONFIG_BOARD_ATSTK1004 is not set
+# CONFIG_BOARD_ATSTK100X_CUSTOM is not set
+# CONFIG_BOARD_ATSTK100X_SPI1 is not set
+# CONFIG_BOARD_ATSTK1000_J2_LED is not set
+# CONFIG_BOARD_ATSTK1000_J2_LED8 is not set
+# CONFIG_BOARD_ATSTK1000_J2_RGB is not set
+CONFIG_BOARD_ATSTK1000_EXTDAC=y
 CONFIG_LOADER_U_BOOT=y
 
 #
@@ -146,9 +146,11 @@ CONFIG_FLATMEM_MANUAL=y
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
 # CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4
 # CONFIG_RESOURCES_64BIT is not set
 CONFIG_ZONE_DMA_FLAG=0
+CONFIG_VIRT_TO_BUS=y
 # CONFIG_OWNERSHIP_TRACE is not set
 # CONFIG_HZ_100 is not set
 CONFIG_HZ_250=y
@@ -158,13 +160,31 @@ CONFIG_HZ=250
 CONFIG_CMDLINE=""
 
 #
-# Bus options
+# Power management options
 #
-# CONFIG_ARCH_SUPPORTS_MSI is not set
 
 #
-# PCCARD (PCMCIA/CardBus) support
+# CPU Frequency scaling
+#
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_TABLE=y
+# CONFIG_CPU_FREQ_DEBUG is not set
+# CONFIG_CPU_FREQ_STAT is not set
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
+CONFIG_CPU_FREQ_AT32AP=y
+
 #
+# Bus options
+#
+# CONFIG_ARCH_SUPPORTS_MSI is not set
 # CONFIG_PCCARD is not set
 
 #
@@ -184,7 +204,12 @@ CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_PACKET_MMAP=y
 CONFIG_UNIX=y
-# CONFIG_NET_KEY is not set
+CONFIG_XFRM=y
+CONFIG_XFRM_USER=m
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+CONFIG_NET_KEY=m
+# CONFIG_NET_KEY_MIGRATE is not set
 CONFIG_INET=y
 # CONFIG_IP_MULTICAST is not set
 # CONFIG_IP_ADVANCED_ROUTER is not set
@@ -193,36 +218,52 @@ CONFIG_IP_PNP=y
 CONFIG_IP_PNP_DHCP=y
 # CONFIG_IP_PNP_BOOTP is not set
 # CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
+CONFIG_NET_IPIP=m
+CONFIG_NET_IPGRE=m
 # CONFIG_ARPD is not set
 # CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
 # CONFIG_INET_IPCOMP is not set
 # CONFIG_INET_XFRM_TUNNEL is not set
-# CONFIG_INET_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
+CONFIG_INET_TUNNEL=m
+CONFIG_INET_XFRM_MODE_TRANSPORT=m
+CONFIG_INET_XFRM_MODE_TUNNEL=m
+CONFIG_INET_XFRM_MODE_BEET=m
+# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=y
 CONFIG_INET_TCP_DIAG=y
 # CONFIG_TCP_CONG_ADVANCED is not set
 CONFIG_TCP_CONG_CUBIC=y
 CONFIG_DEFAULT_TCP_CONG="cubic"
 # CONFIG_TCP_MD5SIG is not set
-# CONFIG_IPV6 is not set
-# CONFIG_INET6_XFRM_TUNNEL is not set
-# CONFIG_INET6_TUNNEL is not set
+CONFIG_IPV6=m
+# CONFIG_IPV6_PRIVACY is not set
+# CONFIG_IPV6_ROUTER_PREF is not set
+# CONFIG_IPV6_OPTIMISTIC_DAD is not set
+CONFIG_INET6_AH=m
+CONFIG_INET6_ESP=m
+CONFIG_INET6_IPCOMP=m
+# CONFIG_IPV6_MIP6 is not set
+CONFIG_INET6_XFRM_TUNNEL=m
+CONFIG_INET6_TUNNEL=m
+CONFIG_INET6_XFRM_MODE_TRANSPORT=m
+CONFIG_INET6_XFRM_MODE_TUNNEL=m
+CONFIG_INET6_XFRM_MODE_BEET=m
+# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
+CONFIG_IPV6_SIT=m
+CONFIG_IPV6_TUNNEL=m
+# CONFIG_IPV6_MULTIPLE_TABLES is not set
 # CONFIG_NETWORK_SECMARK is not set
 # CONFIG_NETFILTER is not set
 # CONFIG_IP_DCCP is not set
 # CONFIG_IP_SCTP is not set
 # CONFIG_TIPC is not set
 # CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
+CONFIG_BRIDGE=m
 # CONFIG_VLAN_8021Q is not set
 # CONFIG_DECNET is not set
+CONFIG_LLC=m
 # CONFIG_LLC2 is not set
 # CONFIG_IPX is not set
 # CONFIG_ATALK is not set
@@ -230,16 +271,13 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
 # CONFIG_LAPB is not set
 # CONFIG_ECONET is not set
 # CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
 # CONFIG_NET_SCHED is not set
 
 #
 # Network testing
 #
 # CONFIG_NET_PKTGEN is not set
+# CONFIG_NET_TCPPROBE is not set
 # CONFIG_HAMRADIO is not set
 # CONFIG_IRDA is not set
 # CONFIG_BT is not set
@@ -253,6 +291,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
 # CONFIG_MAC80211 is not set
 # CONFIG_IEEE80211 is not set
 # CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
 
 #
 # Device Drivers
@@ -261,16 +300,13 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
 #
 # Generic Driver Options
 #
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_STANDALONE=y
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FW_LOADER is not set
 # CONFIG_DEBUG_DRIVER is not set
 # CONFIG_DEBUG_DEVRES is not set
 # CONFIG_SYS_HYPERVISOR is not set
-
-#
-# Connector - unified userspace <-> kernelspace linker
-#
 # CONFIG_CONNECTOR is not set
 CONFIG_MTD=y
 # CONFIG_MTD_DEBUG is not set
@@ -290,6 +326,7 @@ CONFIG_MTD_BLOCK=y
 # CONFIG_INFTL is not set
 # CONFIG_RFD_FTL is not set
 # CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
 
 #
 # RAM/ROM/Flash chip drivers
@@ -329,6 +366,8 @@ CONFIG_MTD_PHYSMAP_BANKWIDTH=2
 #
 # Self-contained MTD device drivers
 #
+CONFIG_MTD_DATAFLASH=m
+CONFIG_MTD_M25P80=m
 # CONFIG_MTD_SLRAM is not set
 # CONFIG_MTD_PHRAM is not set
 # CONFIG_MTD_MTDRAM is not set
@@ -347,20 +386,8 @@ CONFIG_MTD_PHYSMAP_BANKWIDTH=2
 # UBI - Unsorted block images
 #
 # CONFIG_MTD_UBI is not set
-
-#
-# Parallel port support
-#
 # CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-# CONFIG_PNPACPI is not set
-
-#
-# Block devices
-#
+CONFIG_BLK_DEV=y
 # CONFIG_BLK_DEV_COW_COMMON is not set
 CONFIG_BLK_DEV_LOOP=m
 # CONFIG_BLK_DEV_CRYPTOLOOP is not set
@@ -371,42 +398,87 @@ CONFIG_BLK_DEV_RAM_SIZE=4096
 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
-
-#
-# Misc devices
-#
-# CONFIG_BLINK is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_EEPROM_93CX6 is not set
+CONFIG_ATMEL_SSC=m
 # CONFIG_IDE is not set
 
 #
 # SCSI device support
 #
 # CONFIG_RAID_ATTRS is not set
-# CONFIG_SCSI is not set
+CONFIG_SCSI=m
+CONFIG_SCSI_DMA=y
+# CONFIG_SCSI_TGT is not set
 # CONFIG_SCSI_NETLINK is not set
-# CONFIG_ATA is not set
+# CONFIG_SCSI_PROC_FS is not set
 
 #
-# Multi-device support (RAID and LVM)
+# SCSI support type (disk, tape, CD-ROM)
 #
-# CONFIG_MD is not set
+CONFIG_BLK_DEV_SD=m
+# CONFIG_CHR_DEV_ST is not set
+# CONFIG_CHR_DEV_OSST is not set
+CONFIG_BLK_DEV_SR=m
+# CONFIG_BLK_DEV_SR_VENDOR is not set
+# CONFIG_CHR_DEV_SG is not set
+# CONFIG_CHR_DEV_SCH is not set
 
 #
-# Network device support
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
 #
+# CONFIG_SCSI_MULTI_LUN is not set
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+CONFIG_SCSI_WAIT_SCAN=m
+
+#
+# SCSI Transports
+#
+# CONFIG_SCSI_SPI_ATTRS is not set
+# CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+# CONFIG_SCSI_SRP_ATTRS is not set
+# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_ATA=m
+# CONFIG_ATA_NONSTANDARD is not set
+CONFIG_PATA_AT32=m
+# CONFIG_PATA_PLATFORM is not set
+# CONFIG_MD is not set
 CONFIG_NETDEVICES=y
-CONFIG_DUMMY=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
 # CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
 CONFIG_TUN=m
-# CONFIG_PHYLIB is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
+# CONFIG_VETH is not set
+CONFIG_PHYLIB=y
+
+#
+# MII PHY device drivers
+#
+# CONFIG_MARVELL_PHY is not set
+# CONFIG_DAVICOM_PHY is not set
+# CONFIG_QSEMI_PHY is not set
+# CONFIG_LXT_PHY is not set
+# CONFIG_CICADA_PHY is not set
+# CONFIG_VITESSE_PHY is not set
+# CONFIG_SMSC_PHY is not set
+# CONFIG_BROADCOM_PHY is not set
+# CONFIG_ICPLUS_PHY is not set
+# CONFIG_FIXED_PHY is not set
+# CONFIG_MDIO_BITBANG is not set
 CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
+# CONFIG_MII is not set
 CONFIG_MACB=y
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
 # CONFIG_NETDEV_1000 is not set
 # CONFIG_NETDEV_10000 is not set
 
@@ -425,27 +497,54 @@ CONFIG_PPP_DEFLATE=m
 CONFIG_PPP_BSDCOMP=m
 # CONFIG_PPP_MPPE is not set
 # CONFIG_PPPOE is not set
+# CONFIG_PPPOL2TP is not set
 # CONFIG_SLIP is not set
 CONFIG_SLHC=m
 # CONFIG_SHAPER is not set
 # CONFIG_NETCONSOLE is not set
 # CONFIG_NETPOLL is not set
 # CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
 
 #
-# ISDN subsystem
+# Input device support
 #
-# CONFIG_ISDN is not set
+CONFIG_INPUT=m
+# CONFIG_INPUT_FF_MEMLESS is not set
+CONFIG_INPUT_POLLDEV=m
 
 #
-# Telephony Support
+# Userland interfaces
 #
-# CONFIG_PHONE is not set
+CONFIG_INPUT_MOUSEDEV=m
+CONFIG_INPUT_MOUSEDEV_PSAUX=y
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_JOYDEV is not set
+CONFIG_INPUT_EVDEV=m
+# CONFIG_INPUT_EVBUG is not set
 
 #
-# Input device support
+# Input Device Drivers
 #
-# CONFIG_INPUT is not set
+CONFIG_INPUT_KEYBOARD=y
+# CONFIG_KEYBOARD_ATKBD is not set
+# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_KEYBOARD_LKKBD is not set
+# CONFIG_KEYBOARD_XTKBD is not set
+# CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_KEYBOARD_STOWAWAY is not set
+CONFIG_KEYBOARD_GPIO=m
+CONFIG_INPUT_MOUSE=y
+# CONFIG_MOUSE_PS2 is not set
+# CONFIG_MOUSE_SERIAL is not set
+# CONFIG_MOUSE_VSXXXAA is not set
+CONFIG_MOUSE_GPIO=m
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
 
 #
 # Hardware I/O ports
@@ -474,35 +573,87 @@ CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 CONFIG_UNIX98_PTYS=y
 # CONFIG_LEGACY_PTYS is not set
-
-#
-# IPMI
-#
 # CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
 # CONFIG_HW_RANDOM is not set
 # CONFIG_RTC is not set
 # CONFIG_GEN_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+CONFIG_I2C=m
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=m
 
 #
-# TPM devices
+# I2C Algorithms
 #
-# CONFIG_TCG_TPM is not set
-# CONFIG_I2C is not set
+CONFIG_I2C_ALGOBIT=m
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALGOPCA is not set
+
+#
+# I2C Hardware Bus support
+#
+CONFIG_I2C_GPIO=m
+# CONFIG_I2C_OCORES is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_TAOS_EVM is not set
+# CONFIG_I2C_STUB is not set
+
+#
+# Miscellaneous I2C Chip support
+#
+# CONFIG_SENSORS_DS1337 is not set
+# CONFIG_SENSORS_DS1374 is not set
+# CONFIG_DS1682 is not set
+# CONFIG_SENSORS_EEPROM is not set
+# CONFIG_SENSORS_PCF8574 is not set
+# CONFIG_SENSORS_PCA9539 is not set
+# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_MAX6875 is not set
+# CONFIG_SENSORS_TSL2550 is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
+# CONFIG_I2C_DEBUG_CHIP is not set
 
 #
 # SPI support
 #
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
+CONFIG_SPI=y
+# CONFIG_SPI_DEBUG is not set
+CONFIG_SPI_MASTER=y
+
+#
+# SPI Master Controller Drivers
+#
+CONFIG_SPI_ATMEL=y
+# CONFIG_SPI_BITBANG is not set
 
 #
-# Dallas's 1-wire bus
+# SPI Protocol Masters
 #
+# CONFIG_SPI_AT25 is not set
+CONFIG_SPI_SPIDEV=m
+# CONFIG_SPI_TLE62X0 is not set
 # CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
 # CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
+
+#
+# Watchdog Device Drivers
+#
+# CONFIG_SOFT_WATCHDOG is not set
+CONFIG_AT32AP700X_WDT=y
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
 
 #
 # Multifunction device drivers
@@ -519,23 +670,94 @@ CONFIG_UNIX98_PTYS=y
 #
 # Graphics support
 #
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+CONFIG_FB=y
+# CONFIG_FIRMWARE_EDID is not set
+# CONFIG_FB_DDC is not set
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_SYS_FOPS is not set
+CONFIG_FB_DEFERRED_IO=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+# CONFIG_FB_MODE_HELPERS is not set
+# CONFIG_FB_TILEBLITTING is not set
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_S1D13XXX is not set
+CONFIG_FB_ATMEL=y
+# CONFIG_FB_VIRTUAL is not set
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+CONFIG_LCD_CLASS_DEVICE=y
+CONFIG_LCD_LTV350QV=y
+# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
 
 #
 # Display device support
 #
 # CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_VGASTATE is not set
-# CONFIG_FB is not set
+# CONFIG_LOGO is not set
 
 #
 # Sound
 #
-# CONFIG_SOUND is not set
+CONFIG_SOUND=m
+
+#
+# Advanced Linux Sound Architecture
+#
+CONFIG_SND=m
+CONFIG_SND_TIMER=m
+CONFIG_SND_PCM=m
+# CONFIG_SND_SEQUENCER is not set
+CONFIG_SND_OSSEMUL=y
+CONFIG_SND_MIXER_OSS=m
+CONFIG_SND_PCM_OSS=m
+CONFIG_SND_PCM_OSS_PLUGINS=y
+# CONFIG_SND_DYNAMIC_MINORS is not set
+# CONFIG_SND_SUPPORT_OLD_API is not set
+# CONFIG_SND_VERBOSE_PROCFS is not set
+# CONFIG_SND_VERBOSE_PRINTK is not set
+# CONFIG_SND_DEBUG is not set
 
 #
-# USB support
+# Generic devices
+#
+# CONFIG_SND_DUMMY is not set
+# CONFIG_SND_MTPAV is not set
+# CONFIG_SND_SERIAL_U16550 is not set
+# CONFIG_SND_MPU401 is not set
+
 #
+# SPI devices
+#
+CONFIG_SND_AT73C213=m
+CONFIG_SND_AT73C213_TARGET_BITRATE=48000
+
+#
+# System on Chip audio support
+#
+# CONFIG_SND_SOC is not set
+
+#
+# SoC Audio support for SuperH
+#
+
+#
+# Open Sound System
+#
+# CONFIG_SOUND_PRIME is not set
+# CONFIG_HID_SUPPORT is not set
+CONFIG_USB_SUPPORT=y
 # CONFIG_USB_ARCH_HAS_HCD is not set
 # CONFIG_USB_ARCH_HAS_OHCI is not set
 # CONFIG_USB_ARCH_HAS_EHCI is not set
@@ -547,47 +769,116 @@ CONFIG_UNIX98_PTYS=y
 #
 # USB Gadget Support
 #
-# CONFIG_USB_GADGET is not set
-# CONFIG_MMC is not set
-
-#
-# LED devices
-#
-# CONFIG_NEW_LEDS is not set
+CONFIG_USB_GADGET=y
+# CONFIG_USB_GADGET_DEBUG is not set
+# CONFIG_USB_GADGET_DEBUG_FILES is not set
+# CONFIG_USB_GADGET_DEBUG_FS is not set
+CONFIG_USB_GADGET_SELECTED=y
+# CONFIG_USB_GADGET_AMD5536UDC is not set
+CONFIG_USB_GADGET_ATMEL_USBA=y
+CONFIG_USB_ATMEL_USBA=y
+# CONFIG_USB_GADGET_FSL_USB2 is not set
+# CONFIG_USB_GADGET_NET2280 is not set
+# CONFIG_USB_GADGET_PXA2XX is not set
+# CONFIG_USB_GADGET_M66592 is not set
+# CONFIG_USB_GADGET_GOKU is not set
+# CONFIG_USB_GADGET_LH7A40X is not set
+# CONFIG_USB_GADGET_OMAP is not set
+# CONFIG_USB_GADGET_S3C2410 is not set
+# CONFIG_USB_GADGET_AT91 is not set
+# CONFIG_USB_GADGET_DUMMY_HCD is not set
+CONFIG_USB_GADGET_DUALSPEED=y
+CONFIG_USB_ZERO=m
+CONFIG_USB_ETH=m
+CONFIG_USB_ETH_RNDIS=y
+CONFIG_USB_GADGETFS=m
+CONFIG_USB_FILE_STORAGE=m
+# CONFIG_USB_FILE_STORAGE_TEST is not set
+CONFIG_USB_G_SERIAL=m
+# CONFIG_USB_MIDI_GADGET is not set
+CONFIG_MMC=m
+# CONFIG_MMC_DEBUG is not set
+# CONFIG_MMC_UNSAFE_RESUME is not set
+
+#
+# MMC/SD Card Drivers
+#
+CONFIG_MMC_BLOCK=m
+CONFIG_MMC_BLOCK_BOUNCE=y
+# CONFIG_SDIO_UART is not set
+
+#
+# MMC/SD Host Controller Drivers
+#
+CONFIG_MMC_SPI=m
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=m
 
 #
 # LED drivers
 #
+CONFIG_LEDS_GPIO=m
 
 #
 # LED Triggers
 #
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=m
+CONFIG_LEDS_TRIGGER_HEARTBEAT=m
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+# CONFIG_RTC_DEBUG is not set
 
 #
-# InfiniBand support
+# RTC interfaces
 #
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+# CONFIG_RTC_DRV_TEST is not set
 
 #
-# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
+# I2C RTC drivers
 #
+# CONFIG_RTC_DRV_DS1307 is not set
+# CONFIG_RTC_DRV_DS1374 is not set
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+# CONFIG_RTC_DRV_RS5C372 is not set
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
 
 #
-# Real Time Clock
+# SPI RTC drivers
 #
-# CONFIG_RTC_CLASS is not set
+# CONFIG_RTC_DRV_RS5C348 is not set
+# CONFIG_RTC_DRV_MAX6902 is not set
 
 #
-# DMA Engine support
+# Platform RTC drivers
 #
-# CONFIG_DMA_ENGINE is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
 
 #
-# DMA Clients
+# on-CPU RTC drivers
 #
+CONFIG_RTC_DRV_AT32AP700X=y
 
 #
-# DMA Devices
+# Userspace I/O
 #
+# CONFIG_UIO is not set
 
 #
 # File systems
@@ -595,8 +886,11 @@ CONFIG_UNIX98_PTYS=y
 CONFIG_EXT2_FS=m
 # CONFIG_EXT2_FS_XATTR is not set
 # CONFIG_EXT2_FS_XIP is not set
-# CONFIG_EXT3_FS is not set
+CONFIG_EXT3_FS=m
+# CONFIG_EXT3_FS_XATTR is not set
 # CONFIG_EXT4DEV_FS is not set
+CONFIG_JBD=m
+# CONFIG_JBD_DEBUG is not set
 # CONFIG_REISERFS_FS is not set
 # CONFIG_JFS_FS is not set
 # CONFIG_FS_POSIX_ACL is not set
@@ -611,7 +905,7 @@ CONFIG_INOTIFY_USER=y
 # CONFIG_DNOTIFY is not set
 # CONFIG_AUTOFS_FS is not set
 # CONFIG_AUTOFS4_FS is not set
-# CONFIG_FUSE_FS is not set
+CONFIG_FUSE_FS=m
 
 #
 # CD-ROM/DVD Filesystems
@@ -639,8 +933,7 @@ CONFIG_SYSFS=y
 CONFIG_TMPFS=y
 # CONFIG_TMPFS_POSIX_ACL is not set
 # CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-CONFIG_CONFIGFS_FS=m
+# CONFIG_CONFIGFS_FS is not set
 
 #
 # Miscellaneous filesystems
@@ -654,11 +947,12 @@ CONFIG_CONFIGFS_FS=m
 # CONFIG_EFS_FS is not set
 CONFIG_JFFS2_FS=y
 CONFIG_JFFS2_FS_DEBUG=0
-CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_FS_WRITEBUFFER is not set
 # CONFIG_JFFS2_SUMMARY is not set
 # CONFIG_JFFS2_FS_XATTR is not set
 # CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
 CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS2_LZO is not set
 CONFIG_JFFS2_RTIME=y
 # CONFIG_JFFS2_RUBIN is not set
 # CONFIG_CRAMFS is not set
@@ -667,10 +961,7 @@ CONFIG_JFFS2_RTIME=y
 # CONFIG_QNX4FS_FS is not set
 # CONFIG_SYSV_FS is not set
 # CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
+CONFIG_NETWORK_FILESYSTEMS=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V3=y
 # CONFIG_NFS_V3_ACL is not set
@@ -690,17 +981,12 @@ CONFIG_SUNRPC=y
 # CONFIG_NCP_FS is not set
 # CONFIG_CODA_FS is not set
 # CONFIG_AFS_FS is not set
-# CONFIG_9P_FS is not set
 
 #
 # Partition Types
 #
 # CONFIG_PARTITION_ADVANCED is not set
 CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
 CONFIG_NLS=m
 CONFIG_NLS_DEFAULT="iso8859-1"
 CONFIG_NLS_CODEPAGE_437=m
@@ -741,17 +1027,18 @@ CONFIG_NLS_ISO8859_1=m
 # CONFIG_NLS_KOI8_R is not set
 # CONFIG_NLS_KOI8_U is not set
 CONFIG_NLS_UTF8=m
-
-#
-# Distributed Lock Manager
-#
 # CONFIG_DLM is not set
+CONFIG_INSTRUMENTATION=y
+CONFIG_PROFILING=y
+CONFIG_OPROFILE=m
+CONFIG_KPROBES=y
+# CONFIG_MARKERS is not set
 
 #
 # Kernel hacking
 #
-CONFIG_TRACE_IRQFLAGS_SUPPORT=y
 # CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
 CONFIG_ENABLE_MUST_CHECK=y
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_UNUSED_SYMBOLS is not set
@@ -760,12 +1047,17 @@ CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_KERNEL=y
 # CONFIG_DEBUG_SHIRQ is not set
 CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set
 # CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_LOCK_ALLOC is not set
+# CONFIG_PROVE_LOCKING is not set
+# CONFIG_LOCK_STAT is not set
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
 # CONFIG_DEBUG_KOBJECT is not set
@@ -773,22 +1065,63 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
 # CONFIG_DEBUG_VM is not set
 # CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
 CONFIG_FRAME_POINTER=y
 CONFIG_FORCED_INLINING=y
+# CONFIG_BOOT_PRINTK_DELAY is not set
 # CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_LKDTM is not set
 # CONFIG_FAULT_INJECTION is not set
-# CONFIG_KPROBES is not set
+# CONFIG_SAMPLES is not set
 
 #
 # Security options
 #
 # CONFIG_KEYS is not set
 # CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_ALGAPI=m
+CONFIG_CRYPTO_BLKCIPHER=m
+CONFIG_CRYPTO_HASH=m
+CONFIG_CRYPTO_MANAGER=m
+CONFIG_CRYPTO_HMAC=m
+# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_MD4 is not set
+CONFIG_CRYPTO_MD5=m
+CONFIG_CRYPTO_SHA1=m
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_GF128MUL is not set
+# CONFIG_CRYPTO_ECB is not set
+CONFIG_CRYPTO_CBC=m
+# CONFIG_CRYPTO_PCBC is not set
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_XTS is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+CONFIG_CRYPTO_DES=m
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_AES is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_SEED is not set
+CONFIG_CRYPTO_DEFLATE=m
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_TEST is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+# CONFIG_CRYPTO_HW is not set
 
 #
 # Library routines
@@ -796,10 +1129,10 @@ CONFIG_FORCED_INLINING=y
 CONFIG_BITREVERSE=y
 CONFIG_CRC_CCITT=m
 # CONFIG_CRC16 is not set
-# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC_ITU_T=m
 CONFIG_CRC32=y
+CONFIG_CRC7=m
 # CONFIG_LIBCRC32C is not set
-CONFIG_AUDIT_GENERIC=y
 CONFIG_ZLIB_INFLATE=y
 CONFIG_ZLIB_DEFLATE=y
 CONFIG_PLIST=y
-- 
cgit v1.2.3-59-g8ed1b


From 00625723428c23748668ca225e199a2c674c63f7 Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Wed, 9 Jan 2008 23:21:15 +0100
Subject: [AVR32] ATNGW100: Update defconfig

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/configs/atngw100_defconfig | 413 +++++++++++++++++++++-------------
 1 file changed, 262 insertions(+), 151 deletions(-)

(limited to 'arch')

diff --git a/arch/avr32/configs/atngw100_defconfig b/arch/avr32/configs/atngw100_defconfig
index 374c17bcc05e..06046074d68b 100644
--- a/arch/avr32/configs/atngw100_defconfig
+++ b/arch/avr32/configs/atngw100_defconfig
@@ -1,46 +1,51 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22-rc5
-# Sat Jun 23 15:40:05 2007
+# Linux kernel version: 2.6.24-rc7
+# Wed Jan  9 23:20:41 2008
 #
 CONFIG_AVR32=y
 CONFIG_GENERIC_GPIO=y
 CONFIG_GENERIC_HARDIRQS=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
 CONFIG_HARDIRQS_SW_RESEND=y
 CONFIG_GENERIC_IRQ_PROBE=y
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
 CONFIG_GENERIC_TIME=y
+# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
 # CONFIG_ARCH_HAS_ILOG2_U32 is not set
 # CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_SUPPORTS_OPROFILE=y
 CONFIG_GENERIC_HWEIGHT=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_GENERIC_BUG=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
 #
-# Code maturity level options
+# General setup
 #
 CONFIG_EXPERIMENTAL=y
 CONFIG_BROKEN_ON_SMP=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
 CONFIG_LOCALVERSION=""
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
-# CONFIG_IPC_NS is not set
 CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_BSD_PROCESS_ACCT_V3=y
 # CONFIG_TASKSTATS is not set
-# CONFIG_UTS_NS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
 # CONFIG_AUDIT is not set
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
 CONFIG_SYSFS_DEPRECATED=y
 # CONFIG_RELAY is not set
 CONFIG_BLK_DEV_INITRD=y
@@ -61,35 +66,28 @@ CONFIG_FUTEX=y
 CONFIG_ANON_INODES=y
 CONFIG_EPOLL=y
 CONFIG_SIGNALFD=y
-CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-# CONFIG_SLUB_DEBUG is not set
+CONFIG_SLUB_DEBUG=y
 # CONFIG_SLAB is not set
 CONFIG_SLUB=y
 # CONFIG_SLOB is not set
+CONFIG_SLABINFO=y
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
 CONFIG_BASE_SMALL=1
-
-#
-# Loadable module support
-#
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODULE_FORCE_UNLOAD=y
 # CONFIG_MODVERSIONS is not set
 # CONFIG_MODULE_SRCVERSION_ALL is not set
 CONFIG_KMOD=y
-
-#
-# Block layer
-#
 CONFIG_BLOCK=y
 # CONFIG_LBD is not set
 # CONFIG_BLK_DEV_IO_TRACE is not set
 # CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
 
 #
 # IO Schedulers
@@ -113,8 +111,6 @@ CONFIG_PERFORMANCE_COUNTERS=y
 CONFIG_PLATFORM_AT32AP=y
 CONFIG_CPU_AT32AP700X=y
 CONFIG_CPU_AT32AP7000=y
-# CONFIG_CPU_AT32AP7001 is not set
-# CONFIG_CPU_AT32AP7002 is not set
 # CONFIG_BOARD_ATSTK1000 is not set
 CONFIG_BOARD_ATNGW100=y
 CONFIG_LOADER_U_BOOT=y
@@ -144,9 +140,11 @@ CONFIG_FLATMEM_MANUAL=y
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
 # CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4
 # CONFIG_RESOURCES_64BIT is not set
 CONFIG_ZONE_DMA_FLAG=0
+CONFIG_VIRT_TO_BUS=y
 # CONFIG_OWNERSHIP_TRACE is not set
 # CONFIG_HZ_100 is not set
 CONFIG_HZ_250=y
@@ -156,13 +154,31 @@ CONFIG_HZ=250
 CONFIG_CMDLINE=""
 
 #
-# Bus options
+# Power management options
 #
-# CONFIG_ARCH_SUPPORTS_MSI is not set
 
 #
-# PCCARD (PCMCIA/CardBus) support
+# CPU Frequency scaling
 #
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_TABLE=y
+# CONFIG_CPU_FREQ_DEBUG is not set
+# CONFIG_CPU_FREQ_STAT is not set
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
+CONFIG_CPU_FREQ_AT32AP=y
+
+#
+# Bus options
+#
+# CONFIG_ARCH_SUPPORTS_MSI is not set
 # CONFIG_PCCARD is not set
 
 #
@@ -216,6 +232,7 @@ CONFIG_INET_TUNNEL=y
 CONFIG_INET_XFRM_MODE_TRANSPORT=y
 CONFIG_INET_XFRM_MODE_TUNNEL=y
 CONFIG_INET_XFRM_MODE_BEET=y
+# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=y
 CONFIG_INET_TCP_DIAG=y
 # CONFIG_TCP_CONG_ADVANCED is not set
@@ -243,6 +260,7 @@ CONFIG_IPV6_SIT=y
 # CONFIG_NETWORK_SECMARK is not set
 CONFIG_NETFILTER=y
 # CONFIG_NETFILTER_DEBUG is not set
+CONFIG_BRIDGE_NETFILTER=y
 
 #
 # Core Netfilter Configuration
@@ -255,6 +273,7 @@ CONFIG_NF_CONNTRACK_MARK=y
 # CONFIG_NF_CONNTRACK_EVENTS is not set
 CONFIG_NF_CT_PROTO_GRE=m
 # CONFIG_NF_CT_PROTO_SCTP is not set
+# CONFIG_NF_CT_PROTO_UDPLITE is not set
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
@@ -272,9 +291,11 @@ CONFIG_NETFILTER_XT_TARGET_MARK=m
 CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
 CONFIG_NETFILTER_XT_TARGET_NFLOG=m
 # CONFIG_NETFILTER_XT_TARGET_NOTRACK is not set
+# CONFIG_NETFILTER_XT_TARGET_TRACE is not set
 CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
 CONFIG_NETFILTER_XT_MATCH_COMMENT=m
 CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
+# CONFIG_NETFILTER_XT_MATCH_CONNLIMIT is not set
 CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
 CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
 # CONFIG_NETFILTER_XT_MATCH_DCCP is not set
@@ -287,6 +308,7 @@ CONFIG_NETFILTER_XT_MATCH_MAC=m
 CONFIG_NETFILTER_XT_MATCH_MARK=m
 CONFIG_NETFILTER_XT_MATCH_POLICY=m
 CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
+# CONFIG_NETFILTER_XT_MATCH_PHYSDEV is not set
 CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
 CONFIG_NETFILTER_XT_MATCH_QUOTA=m
 CONFIG_NETFILTER_XT_MATCH_REALM=m
@@ -295,6 +317,8 @@ CONFIG_NETFILTER_XT_MATCH_STATE=m
 CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
 CONFIG_NETFILTER_XT_MATCH_STRING=m
 CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
+# CONFIG_NETFILTER_XT_MATCH_TIME is not set
+# CONFIG_NETFILTER_XT_MATCH_U32 is not set
 CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
 
 #
@@ -362,13 +386,19 @@ CONFIG_IP6_NF_TARGET_REJECT=m
 CONFIG_IP6_NF_MANGLE=m
 CONFIG_IP6_NF_TARGET_HL=m
 CONFIG_IP6_NF_RAW=m
+
+#
+# Bridge: Netfilter Configuration
+#
+# CONFIG_BRIDGE_NF_EBTABLES is not set
 # CONFIG_IP_DCCP is not set
 # CONFIG_IP_SCTP is not set
 # CONFIG_TIPC is not set
 # CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
+CONFIG_BRIDGE=m
 CONFIG_VLAN_8021Q=m
 # CONFIG_DECNET is not set
+CONFIG_LLC=m
 # CONFIG_LLC2 is not set
 # CONFIG_IPX is not set
 # CONFIG_ATALK is not set
@@ -376,10 +406,6 @@ CONFIG_VLAN_8021Q=m
 # CONFIG_LAPB is not set
 # CONFIG_ECONET is not set
 # CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
 # CONFIG_NET_SCHED is not set
 CONFIG_NET_CLS_ROUTE=y
 
@@ -387,6 +413,7 @@ CONFIG_NET_CLS_ROUTE=y
 # Network testing
 #
 # CONFIG_NET_PKTGEN is not set
+# CONFIG_NET_TCPPROBE is not set
 # CONFIG_HAMRADIO is not set
 # CONFIG_IRDA is not set
 # CONFIG_BT is not set
@@ -400,6 +427,7 @@ CONFIG_NET_CLS_ROUTE=y
 # CONFIG_MAC80211 is not set
 # CONFIG_IEEE80211 is not set
 # CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
 
 #
 # Device Drivers
@@ -408,16 +436,13 @@ CONFIG_NET_CLS_ROUTE=y
 #
 # Generic Driver Options
 #
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_STANDALONE=y
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FW_LOADER is not set
 # CONFIG_DEBUG_DRIVER is not set
 # CONFIG_DEBUG_DEVRES is not set
 # CONFIG_SYS_HYPERVISOR is not set
-
-#
-# Connector - unified userspace <-> kernelspace linker
-#
 # CONFIG_CONNECTOR is not set
 CONFIG_MTD=y
 # CONFIG_MTD_DEBUG is not set
@@ -437,6 +462,7 @@ CONFIG_MTD_BLOCK=y
 # CONFIG_INFTL is not set
 # CONFIG_RFD_FTL is not set
 # CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
 
 #
 # RAM/ROM/Flash chip drivers
@@ -496,20 +522,8 @@ CONFIG_MTD_DATAFLASH=y
 # UBI - Unsorted block images
 #
 # CONFIG_MTD_UBI is not set
-
-#
-# Parallel port support
-#
 # CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-# CONFIG_PNPACPI is not set
-
-#
-# Block devices
-#
+CONFIG_BLK_DEV=y
 # CONFIG_BLK_DEV_COW_COMMON is not set
 CONFIG_BLK_DEV_LOOP=m
 # CONFIG_BLK_DEV_CRYPTOLOOP is not set
@@ -520,11 +534,7 @@ CONFIG_BLK_DEV_RAM_SIZE=4096
 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
-
-#
-# Misc devices
-#
-# CONFIG_BLINK is not set
+# CONFIG_MISC_DEVICES is not set
 # CONFIG_IDE is not set
 
 #
@@ -532,30 +542,42 @@ CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
 #
 # CONFIG_RAID_ATTRS is not set
 # CONFIG_SCSI is not set
+# CONFIG_SCSI_DMA is not set
 # CONFIG_SCSI_NETLINK is not set
 # CONFIG_ATA is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
 # CONFIG_MD is not set
-
-#
-# Network device support
-#
 CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
 # CONFIG_DUMMY is not set
 # CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
 CONFIG_TUN=m
-# CONFIG_PHYLIB is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
+# CONFIG_VETH is not set
+CONFIG_PHYLIB=y
+
+#
+# MII PHY device drivers
+#
+# CONFIG_MARVELL_PHY is not set
+# CONFIG_DAVICOM_PHY is not set
+# CONFIG_QSEMI_PHY is not set
+# CONFIG_LXT_PHY is not set
+# CONFIG_CICADA_PHY is not set
+# CONFIG_VITESSE_PHY is not set
+# CONFIG_SMSC_PHY is not set
+# CONFIG_BROADCOM_PHY is not set
+# CONFIG_ICPLUS_PHY is not set
+# CONFIG_FIXED_PHY is not set
+# CONFIG_MDIO_BITBANG is not set
 CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
+# CONFIG_MII is not set
 CONFIG_MACB=y
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
 # CONFIG_NETDEV_1000 is not set
 # CONFIG_NETDEV_10000 is not set
 
@@ -574,21 +596,14 @@ CONFIG_PPP_DEFLATE=m
 CONFIG_PPP_BSDCOMP=m
 CONFIG_PPP_MPPE=m
 CONFIG_PPPOE=m
+# CONFIG_PPPOL2TP is not set
 # CONFIG_SLIP is not set
 CONFIG_SLHC=m
 # CONFIG_SHAPER is not set
 # CONFIG_NETCONSOLE is not set
 # CONFIG_NETPOLL is not set
 # CONFIG_NET_POLL_CONTROLLER is not set
-
-#
-# ISDN subsystem
-#
 # CONFIG_ISDN is not set
-
-#
-# Telephony Support
-#
 # CONFIG_PHONE is not set
 
 #
@@ -623,23 +638,50 @@ CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 CONFIG_UNIX98_PTYS=y
 # CONFIG_LEGACY_PTYS is not set
-
-#
-# IPMI
-#
 # CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
 # CONFIG_HW_RANDOM is not set
 # CONFIG_RTC is not set
 # CONFIG_GEN_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+CONFIG_I2C=m
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=m
 
 #
-# TPM devices
+# I2C Algorithms
 #
-# CONFIG_TCG_TPM is not set
-# CONFIG_I2C is not set
+CONFIG_I2C_ALGOBIT=m
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALGOPCA is not set
+
+#
+# I2C Hardware Bus support
+#
+CONFIG_I2C_GPIO=m
+# CONFIG_I2C_OCORES is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_TAOS_EVM is not set
+# CONFIG_I2C_STUB is not set
+
+#
+# Miscellaneous I2C Chip support
+#
+# CONFIG_SENSORS_DS1337 is not set
+# CONFIG_SENSORS_DS1374 is not set
+# CONFIG_DS1682 is not set
+# CONFIG_SENSORS_EEPROM is not set
+# CONFIG_SENSORS_PCF8574 is not set
+# CONFIG_SENSORS_PCA9539 is not set
+# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_MAX6875 is not set
+# CONFIG_SENSORS_TSL2550 is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
+# CONFIG_I2C_DEBUG_CHIP is not set
 
 #
 # SPI support
@@ -658,13 +700,25 @@ CONFIG_SPI_ATMEL=y
 # SPI Protocol Masters
 #
 # CONFIG_SPI_AT25 is not set
-# CONFIG_SPI_SPIDEV is not set
+CONFIG_SPI_SPIDEV=m
+# CONFIG_SPI_TLE62X0 is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
 
 #
-# Dallas's 1-wire bus
+# Watchdog Device Drivers
 #
-# CONFIG_W1 is not set
-# CONFIG_HWMON is not set
+# CONFIG_SOFT_WATCHDOG is not set
+CONFIG_AT32AP700X_WDT=y
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
 
 #
 # Multifunction device drivers
@@ -681,23 +735,21 @@ CONFIG_SPI_ATMEL=y
 #
 # Graphics support
 #
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
 # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
 #
 # Display device support
 #
 # CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_VGASTATE is not set
-# CONFIG_FB is not set
 
 #
 # Sound
 #
 # CONFIG_SOUND is not set
-
-#
-# USB support
-#
+CONFIG_USB_SUPPORT=y
 # CONFIG_USB_ARCH_HAS_HCD is not set
 # CONFIG_USB_ARCH_HAS_OHCI is not set
 # CONFIG_USB_ARCH_HAS_EHCI is not set
@@ -709,12 +761,47 @@ CONFIG_SPI_ATMEL=y
 #
 # USB Gadget Support
 #
-# CONFIG_USB_GADGET is not set
-# CONFIG_MMC is not set
-
-#
-# LED devices
-#
+CONFIG_USB_GADGET=y
+# CONFIG_USB_GADGET_DEBUG is not set
+# CONFIG_USB_GADGET_DEBUG_FILES is not set
+CONFIG_USB_GADGET_SELECTED=y
+# CONFIG_USB_GADGET_AMD5536UDC is not set
+CONFIG_USB_GADGET_ATMEL_USBA=y
+CONFIG_USB_ATMEL_USBA=y
+# CONFIG_USB_GADGET_FSL_USB2 is not set
+# CONFIG_USB_GADGET_NET2280 is not set
+# CONFIG_USB_GADGET_PXA2XX is not set
+# CONFIG_USB_GADGET_M66592 is not set
+# CONFIG_USB_GADGET_GOKU is not set
+# CONFIG_USB_GADGET_LH7A40X is not set
+# CONFIG_USB_GADGET_OMAP is not set
+# CONFIG_USB_GADGET_S3C2410 is not set
+# CONFIG_USB_GADGET_AT91 is not set
+# CONFIG_USB_GADGET_DUMMY_HCD is not set
+CONFIG_USB_GADGET_DUALSPEED=y
+CONFIG_USB_ZERO=m
+CONFIG_USB_ETH=m
+CONFIG_USB_ETH_RNDIS=y
+CONFIG_USB_GADGETFS=m
+CONFIG_USB_FILE_STORAGE=m
+# CONFIG_USB_FILE_STORAGE_TEST is not set
+CONFIG_USB_G_SERIAL=m
+# CONFIG_USB_MIDI_GADGET is not set
+CONFIG_MMC=m
+# CONFIG_MMC_DEBUG is not set
+# CONFIG_MMC_UNSAFE_RESUME is not set
+
+#
+# MMC/SD Card Drivers
+#
+CONFIG_MMC_BLOCK=m
+CONFIG_MMC_BLOCK_BOUNCE=y
+# CONFIG_SDIO_UART is not set
+
+#
+# MMC/SD Host Controller Drivers
+#
+CONFIG_MMC_SPI=m
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 
@@ -729,53 +816,71 @@ CONFIG_LEDS_GPIO=y
 CONFIG_LEDS_TRIGGERS=y
 CONFIG_LEDS_TRIGGER_TIMER=y
 CONFIG_LEDS_TRIGGER_HEARTBEAT=y
-
-
-#
-# LED drivers
-#
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+# CONFIG_RTC_DEBUG is not set
 
 #
-# LED Triggers
-#
-
-#
-# InfiniBand support
+# RTC interfaces
 #
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+# CONFIG_RTC_DRV_TEST is not set
 
 #
-# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
+# I2C RTC drivers
 #
+# CONFIG_RTC_DRV_DS1307 is not set
+# CONFIG_RTC_DRV_DS1374 is not set
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+# CONFIG_RTC_DRV_RS5C372 is not set
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
 
 #
-# Real Time Clock
+# SPI RTC drivers
 #
-# CONFIG_RTC_CLASS is not set
+# CONFIG_RTC_DRV_RS5C348 is not set
+# CONFIG_RTC_DRV_MAX6902 is not set
 
 #
-# DMA Engine support
+# Platform RTC drivers
 #
-# CONFIG_DMA_ENGINE is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
 
 #
-# DMA Clients
+# on-CPU RTC drivers
 #
+CONFIG_RTC_DRV_AT32AP700X=y
 
 #
-# DMA Devices
+# Userspace I/O
 #
+# CONFIG_UIO is not set
 
 #
 # File systems
 #
-CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS=m
 # CONFIG_EXT2_FS_XATTR is not set
 # CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS=m
 # CONFIG_EXT3_FS_XATTR is not set
 # CONFIG_EXT4DEV_FS is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
+CONFIG_JBD=m
 # CONFIG_REISERFS_FS is not set
 # CONFIG_JFS_FS is not set
 # CONFIG_FS_POSIX_ACL is not set
@@ -784,7 +889,8 @@ CONFIG_JBD=y
 # CONFIG_OCFS2_FS is not set
 # CONFIG_MINIX_FS is not set
 # CONFIG_ROMFS_FS is not set
-# CONFIG_INOTIFY is not set
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
 # CONFIG_QUOTA is not set
 # CONFIG_DNOTIFY is not set
 # CONFIG_AUTOFS_FS is not set
@@ -817,8 +923,7 @@ CONFIG_SYSFS=y
 CONFIG_TMPFS=y
 # CONFIG_TMPFS_POSIX_ACL is not set
 # CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-CONFIG_CONFIGFS_FS=y
+CONFIG_CONFIGFS_FS=m
 
 #
 # Miscellaneous filesystems
@@ -833,10 +938,12 @@ CONFIG_CONFIGFS_FS=y
 CONFIG_JFFS2_FS=y
 CONFIG_JFFS2_FS_DEBUG=0
 CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
 # CONFIG_JFFS2_SUMMARY is not set
 # CONFIG_JFFS2_FS_XATTR is not set
 # CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
 CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS2_LZO is not set
 CONFIG_JFFS2_RTIME=y
 # CONFIG_JFFS2_RUBIN is not set
 # CONFIG_CRAMFS is not set
@@ -845,19 +952,21 @@ CONFIG_JFFS2_RTIME=y
 # CONFIG_QNX4FS_FS is not set
 # CONFIG_SYSV_FS is not set
 # CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
+CONFIG_NETWORK_FILESYSTEMS=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V3=y
 # CONFIG_NFS_V3_ACL is not set
 # CONFIG_NFS_V4 is not set
 # CONFIG_NFS_DIRECTIO is not set
-# CONFIG_NFSD is not set
+CONFIG_NFSD=m
+CONFIG_NFSD_V3=y
+# CONFIG_NFSD_V3_ACL is not set
+# CONFIG_NFSD_V4 is not set
+CONFIG_NFSD_TCP=y
 CONFIG_ROOT_NFS=y
 CONFIG_LOCKD=y
 CONFIG_LOCKD_V4=y
+CONFIG_EXPORTFS=m
 CONFIG_NFS_COMMON=y
 CONFIG_SUNRPC=y
 # CONFIG_SUNRPC_BIND34 is not set
@@ -874,23 +983,18 @@ CONFIG_CIFS=m
 # CONFIG_NCP_FS is not set
 # CONFIG_CODA_FS is not set
 # CONFIG_AFS_FS is not set
-# CONFIG_9P_FS is not set
 
 #
 # Partition Types
 #
 # CONFIG_PARTITION_ADVANCED is not set
 CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-CONFIG_NLS=y
+CONFIG_NLS=m
 CONFIG_NLS_DEFAULT="iso8859-1"
-# CONFIG_NLS_CODEPAGE_437 is not set
+CONFIG_NLS_CODEPAGE_437=m
 # CONFIG_NLS_CODEPAGE_737 is not set
 # CONFIG_NLS_CODEPAGE_775 is not set
-CONFIG_NLS_CODEPAGE_850=y
+CONFIG_NLS_CODEPAGE_850=m
 # CONFIG_NLS_CODEPAGE_852 is not set
 # CONFIG_NLS_CODEPAGE_855 is not set
 # CONFIG_NLS_CODEPAGE_857 is not set
@@ -911,7 +1015,7 @@ CONFIG_NLS_CODEPAGE_850=y
 # CONFIG_NLS_CODEPAGE_1250 is not set
 # CONFIG_NLS_CODEPAGE_1251 is not set
 # CONFIG_NLS_ASCII is not set
-CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_1=m
 # CONFIG_NLS_ISO8859_2 is not set
 # CONFIG_NLS_ISO8859_3 is not set
 # CONFIG_NLS_ISO8859_4 is not set
@@ -924,18 +1028,19 @@ CONFIG_NLS_ISO8859_1=y
 # CONFIG_NLS_ISO8859_15 is not set
 # CONFIG_NLS_KOI8_R is not set
 # CONFIG_NLS_KOI8_U is not set
-CONFIG_NLS_UTF8=y
-
-#
-# Distributed Lock Manager
-#
+CONFIG_NLS_UTF8=m
 # CONFIG_DLM is not set
+CONFIG_INSTRUMENTATION=y
+CONFIG_PROFILING=y
+CONFIG_OPROFILE=m
+CONFIG_KPROBES=y
+# CONFIG_MARKERS is not set
 
 #
 # Kernel hacking
 #
-CONFIG_TRACE_IRQFLAGS_SUPPORT=y
 # CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
 CONFIG_ENABLE_MUST_CHECK=y
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_UNUSED_SYMBOLS is not set
@@ -944,12 +1049,17 @@ CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
 # CONFIG_DEBUG_SHIRQ is not set
 CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set
 # CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_LOCK_ALLOC is not set
+# CONFIG_PROVE_LOCKING is not set
+# CONFIG_LOCK_STAT is not set
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
 # CONFIG_DEBUG_KOBJECT is not set
@@ -957,21 +1067,21 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
 # CONFIG_DEBUG_VM is not set
 # CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
 CONFIG_FRAME_POINTER=y
 # CONFIG_FORCED_INLINING is not set
+# CONFIG_BOOT_PRINTK_DELAY is not set
 # CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_LKDTM is not set
 # CONFIG_FAULT_INJECTION is not set
-# CONFIG_KPROBES is not set
+# CONFIG_SAMPLES is not set
 
 #
 # Security options
 #
 # CONFIG_KEYS is not set
 # CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
 CONFIG_CRYPTO=y
 CONFIG_CRYPTO_ALGAPI=y
 CONFIG_CRYPTO_BLKCIPHER=y
@@ -992,6 +1102,7 @@ CONFIG_CRYPTO_ECB=m
 CONFIG_CRYPTO_CBC=y
 CONFIG_CRYPTO_PCBC=m
 # CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_XTS is not set
 # CONFIG_CRYPTO_CRYPTD is not set
 CONFIG_CRYPTO_DES=y
 # CONFIG_CRYPTO_FCRYPT is not set
@@ -1005,15 +1116,14 @@ CONFIG_CRYPTO_DES=y
 CONFIG_CRYPTO_ARC4=m
 # CONFIG_CRYPTO_KHAZAD is not set
 # CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_SEED is not set
 CONFIG_CRYPTO_DEFLATE=y
 # CONFIG_CRYPTO_MICHAEL_MIC is not set
 # CONFIG_CRYPTO_CRC32C is not set
 # CONFIG_CRYPTO_CAMELLIA is not set
 # CONFIG_CRYPTO_TEST is not set
-
-#
-# Hardware crypto devices
-#
+# CONFIG_CRYPTO_AUTHENC is not set
+CONFIG_CRYPTO_HW=y
 
 #
 # Library routines
@@ -1021,8 +1131,9 @@ CONFIG_CRYPTO_DEFLATE=y
 CONFIG_BITREVERSE=y
 CONFIG_CRC_CCITT=m
 # CONFIG_CRC16 is not set
-# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC_ITU_T=m
 CONFIG_CRC32=y
+CONFIG_CRC7=m
 # CONFIG_LIBCRC32C is not set
 CONFIG_ZLIB_INFLATE=y
 CONFIG_ZLIB_DEFLATE=y
-- 
cgit v1.2.3-59-g8ed1b


From f6135d12db4bed3b992052020f1c50d749cd8dc6 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@computergmbh.de>
Date: Tue, 22 Jan 2008 20:41:37 +0100
Subject: [AVR32] constify function pointer tables

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/kernel/cpu.c | 2 +-
 arch/avr32/mm/tlb.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/avr32/kernel/cpu.c b/arch/avr32/kernel/cpu.c
index 14610019216e..b8409caeb23d 100644
--- a/arch/avr32/kernel/cpu.c
+++ b/arch/avr32/kernel/cpu.c
@@ -385,7 +385,7 @@ static void c_stop(struct seq_file *m, void *v)
 
 }
 
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
 	.start	= c_start,
 	.next	= c_next,
 	.stop	= c_stop,
diff --git a/arch/avr32/mm/tlb.c b/arch/avr32/mm/tlb.c
index 56672018e42f..b835257a8fa3 100644
--- a/arch/avr32/mm/tlb.c
+++ b/arch/avr32/mm/tlb.c
@@ -348,7 +348,7 @@ static int tlb_show(struct seq_file *tlb, void *v)
 	return 0;
 }
 
-static struct seq_operations tlb_ops = {
+static const struct seq_operations tlb_ops = {
 	.start		= tlb_start,
 	.next		= tlb_next,
 	.stop		= tlb_stop,
-- 
cgit v1.2.3-59-g8ed1b


From e7ba176b47db2ed53f258a6b4fe9d9fc6fa437a9 Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Wed, 10 Oct 2007 14:58:29 +0200
Subject: [AVR32] NMI debugging

Change the NMI handler to use the die notifier chain to signal anyone
who cares. Add a simple "nmi debugger" which hooks into this chain and
that may dump registers, task state, etc. when it happens.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 Documentation/kernel-parameters.txt |  5 +++
 arch/avr32/Kconfig                  | 10 +++++
 arch/avr32/kernel/Makefile          |  1 +
 arch/avr32/kernel/irq.c             | 11 +++++
 arch/avr32/kernel/nmi_debug.c       | 82 +++++++++++++++++++++++++++++++++++++
 arch/avr32/kernel/traps.c           | 21 ++++++++--
 arch/avr32/mach-at32ap/at32ap700x.c |  1 +
 arch/avr32/mach-at32ap/extint.c     | 39 ++++++++++++++----
 include/asm-avr32/irq.h             |  5 +++
 include/asm-avr32/kdebug.h          |  1 +
 10 files changed, 166 insertions(+), 10 deletions(-)
 create mode 100644 arch/avr32/kernel/nmi_debug.c

(limited to 'arch')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index c4178778e7fd..17fc60e32443 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -34,6 +34,7 @@ parameter is applicable:
 	ALSA	ALSA sound support is enabled.
 	APIC	APIC support is enabled.
 	APM	Advanced Power Management support is enabled.
+	AVR32	AVR32 architecture is enabled.
 	AX25	Appropriate AX.25 support is enabled.
 	BLACKFIN Blackfin architecture is enabled.
 	DRM	Direct Rendering Management support is enabled.
@@ -1123,6 +1124,10 @@ and is between 256 and 4096 characters. It is defined in the file
 			of returning the full 64-bit number.
 			The default is to return 64-bit inode numbers.
 
+	nmi_debug=	[KNL,AVR32] Specify one or more actions to take
+			when a NMI is triggered.
+			Format: [state][,regs][,debounce][,die]
+
 	nmi_watchdog=	[KNL,BUGS=X86-32] Debugging features for SMP kernels
 
 	no387		[BUGS=X86-32] Tells the kernel to use the 387 maths
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 516015b3293b..e34e2c9c94cb 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -170,6 +170,16 @@ config OWNERSHIP_TRACE
 	  enabling Nexus-compliant debuggers to keep track of the PID of the
 	  currently executing task.
 
+config NMI_DEBUGGING
+	bool "NMI Debugging"
+	default n
+	help
+	  Say Y here and pass the nmi_debug command-line parameter to
+	  the kernel to turn on NMI debugging. Depending on the value
+	  of the nmi_debug option, various pieces of information will
+	  be dumped to the console when a Non-Maskable Interrupt
+	  happens.
+
 # FPU emulation goes here
 
 source "kernel/Kconfig.hz"
diff --git a/arch/avr32/kernel/Makefile b/arch/avr32/kernel/Makefile
index bc224a4e39fe..e4b6d122b033 100644
--- a/arch/avr32/kernel/Makefile
+++ b/arch/avr32/kernel/Makefile
@@ -12,3 +12,4 @@ obj-y				+= init_task.o switch_to.o cpu.o
 obj-$(CONFIG_MODULES)		+= module.o avr32_ksyms.o
 obj-$(CONFIG_KPROBES)		+= kprobes.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
+obj-$(CONFIG_NMI_DEBUGGING)	+= nmi_debug.o
diff --git a/arch/avr32/kernel/irq.c b/arch/avr32/kernel/irq.c
index 61f2de266f62..a8e767d836aa 100644
--- a/arch/avr32/kernel/irq.c
+++ b/arch/avr32/kernel/irq.c
@@ -25,6 +25,17 @@ void ack_bad_irq(unsigned int irq)
 	printk("unexpected IRQ %u\n", irq);
 }
 
+/* May be overridden by platform code */
+int __weak nmi_enable(void)
+{
+	return -ENOSYS;
+}
+
+void __weak nmi_disable(void)
+{
+
+}
+
 #ifdef CONFIG_PROC_FS
 int show_interrupts(struct seq_file *p, void *v)
 {
diff --git a/arch/avr32/kernel/nmi_debug.c b/arch/avr32/kernel/nmi_debug.c
new file mode 100644
index 000000000000..3414b8566c29
--- /dev/null
+++ b/arch/avr32/kernel/nmi_debug.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/delay.h>
+#include <linux/kdebug.h>
+#include <linux/notifier.h>
+#include <linux/sched.h>
+
+#include <asm/irq.h>
+
+enum nmi_action {
+	NMI_SHOW_STATE	= 1 << 0,
+	NMI_SHOW_REGS	= 1 << 1,
+	NMI_DIE		= 1 << 2,
+	NMI_DEBOUNCE	= 1 << 3,
+};
+
+static unsigned long nmi_actions;
+
+static int nmi_debug_notify(struct notifier_block *self,
+		unsigned long val, void *data)
+{
+	struct die_args *args = data;
+
+	if (likely(val != DIE_NMI))
+		return NOTIFY_DONE;
+
+	if (nmi_actions & NMI_SHOW_STATE)
+		show_state();
+	if (nmi_actions & NMI_SHOW_REGS)
+		show_regs(args->regs);
+	if (nmi_actions & NMI_DEBOUNCE)
+		mdelay(10);
+	if (nmi_actions & NMI_DIE)
+		return NOTIFY_BAD;
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block nmi_debug_nb = {
+	.notifier_call = nmi_debug_notify,
+};
+
+static int __init nmi_debug_setup(char *str)
+{
+	char *p, *sep;
+
+	register_die_notifier(&nmi_debug_nb);
+	if (nmi_enable()) {
+		printk(KERN_WARNING "Unable to enable NMI.\n");
+		return 0;
+	}
+
+	if (*str != '=')
+		return 0;
+
+	for (p = str + 1; *p; p = sep + 1) {
+		sep = strchr(p, ',');
+		if (sep)
+			*sep = 0;
+		if (strcmp(p, "state") == 0)
+			nmi_actions |= NMI_SHOW_STATE;
+		else if (strcmp(p, "regs") == 0)
+			nmi_actions |= NMI_SHOW_REGS;
+		else if (strcmp(p, "debounce") == 0)
+			nmi_actions |= NMI_DEBOUNCE;
+		else if (strcmp(p, "die") == 0)
+			nmi_actions |= NMI_DIE;
+		else
+			printk(KERN_WARNING "NMI: Unrecognized action `%s'\n",
+				p);
+		if (!sep)
+			break;
+	}
+
+	return 0;
+}
+__setup("nmi_debug", nmi_debug_setup);
diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c
index 870c075e6314..cf6f686d9b0b 100644
--- a/arch/avr32/kernel/traps.c
+++ b/arch/avr32/kernel/traps.c
@@ -9,6 +9,7 @@
 #include <linux/bug.h>
 #include <linux/init.h>
 #include <linux/kallsyms.h>
+#include <linux/kdebug.h>
 #include <linux/module.h>
 #include <linux/notifier.h>
 #include <linux/sched.h>
@@ -107,9 +108,23 @@ void _exception(long signr, struct pt_regs *regs, int code,
 
 asmlinkage void do_nmi(unsigned long ecr, struct pt_regs *regs)
 {
-	printk(KERN_ALERT "Got Non-Maskable Interrupt, dumping regs\n");
-	show_regs_log_lvl(regs, KERN_ALERT);
-	show_stack_log_lvl(current, regs->sp, regs, KERN_ALERT);
+	int ret;
+
+	nmi_enter();
+
+	ret = notify_die(DIE_NMI, "NMI", regs, 0, ecr, SIGINT);
+	switch (ret) {
+	case NOTIFY_OK:
+	case NOTIFY_STOP:
+		return;
+	case NOTIFY_BAD:
+		die("Fatal Non-Maskable Interrupt", regs, SIGINT);
+	default:
+		break;
+	}
+
+	printk(KERN_ALERT "Got NMI, but nobody cared. Disabling...\n");
+	nmi_disable();
 }
 
 asmlinkage void do_critical_exception(unsigned long ecr, struct pt_regs *regs)
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 9386e1f82fb8..14e61f05e1f6 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -13,6 +13,7 @@
 #include <linux/spi/spi.h>
 
 #include <asm/io.h>
+#include <asm/irq.h>
 
 #include <asm/arch/at32ap700x.h>
 #include <asm/arch/board.h>
diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c
index f5bfd4c81fe7..e108e7bba8c0 100644
--- a/arch/avr32/mach-at32ap/extint.c
+++ b/arch/avr32/mach-at32ap/extint.c
@@ -26,16 +26,10 @@
 #define EIC_MODE				0x0014
 #define EIC_EDGE				0x0018
 #define EIC_LEVEL				0x001c
-#define EIC_TEST				0x0020
 #define EIC_NMIC				0x0024
 
-/* Bitfields in TEST */
-#define EIC_TESTEN_OFFSET			31
-#define EIC_TESTEN_SIZE				1
-
 /* Bitfields in NMIC */
-#define EIC_EN_OFFSET				0
-#define EIC_EN_SIZE				1
+#define EIC_NMIC_ENABLE				(1 << 0)
 
 /* Bit manipulation macros */
 #define EIC_BIT(name)					\
@@ -63,6 +57,9 @@ struct eic {
 	unsigned int first_irq;
 };
 
+static struct eic *nmi_eic;
+static bool nmi_enabled;
+
 static void eic_ack_irq(unsigned int irq)
 {
 	struct eic *eic = get_irq_chip_data(irq);
@@ -174,6 +171,24 @@ static void demux_eic_irq(unsigned int irq, struct irq_desc *desc)
 	}
 }
 
+int nmi_enable(void)
+{
+	nmi_enabled = true;
+
+	if (nmi_eic)
+		eic_writel(nmi_eic, NMIC, EIC_NMIC_ENABLE);
+
+	return 0;
+}
+
+void nmi_disable(void)
+{
+	if (nmi_eic)
+		eic_writel(nmi_eic, NMIC, 0);
+
+	nmi_enabled = false;
+}
+
 static int __init eic_probe(struct platform_device *pdev)
 {
 	struct eic *eic;
@@ -230,6 +245,16 @@ static int __init eic_probe(struct platform_device *pdev)
 	set_irq_chained_handler(int_irq, demux_eic_irq);
 	set_irq_data(int_irq, eic);
 
+	if (pdev->id == 0) {
+		nmi_eic = eic;
+		if (nmi_enabled)
+			/*
+			 * Someone tried to enable NMI before we were
+			 * ready. Do it now.
+			 */
+			nmi_enable();
+	}
+
 	dev_info(&pdev->dev,
 		 "External Interrupt Controller at 0x%p, IRQ %u\n",
 		 eic->regs, int_irq);
diff --git a/include/asm-avr32/irq.h b/include/asm-avr32/irq.h
index 83e6549d7783..9315724c0596 100644
--- a/include/asm-avr32/irq.h
+++ b/include/asm-avr32/irq.h
@@ -11,4 +11,9 @@
 
 #define irq_canonicalize(i)	(i)
 
+#ifndef __ASSEMBLER__
+int nmi_enable(void);
+void nmi_disable(void);
+#endif
+
 #endif /* __ASM_AVR32_IOCTLS_H */
diff --git a/include/asm-avr32/kdebug.h b/include/asm-avr32/kdebug.h
index fd7e99046b2f..ca4f9542365a 100644
--- a/include/asm-avr32/kdebug.h
+++ b/include/asm-avr32/kdebug.h
@@ -5,6 +5,7 @@
 enum die_val {
 	DIE_BREAKPOINT,
 	DIE_SSTEP,
+	DIE_NMI,
 };
 
 #endif /* __ASM_AVR32_KDEBUG_H */
-- 
cgit v1.2.3-59-g8ed1b


From e4f586f280bbfa05c68f99df2db981356ee30533 Mon Sep 17 00:00:00 2001
From: David Brownell <david-b@pacbell.net>
Date: Tue, 18 Dec 2007 20:50:28 -0800
Subject: [AVR32] extint: change set_irq_type() handling

Update the AVR32 EIC code to use the new __set_irq_handler_unlocked()
call, getting rid of one more instance of this widespread problem.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/mach-at32ap/extint.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c
index e108e7bba8c0..81a4a02f5f42 100644
--- a/arch/avr32/mach-at32ap/extint.c
+++ b/arch/avr32/mach-at32ap/extint.c
@@ -130,8 +130,11 @@ static int eic_set_irq_type(unsigned int irq, unsigned int flow_type)
 		eic_writel(eic, EDGE, edge);
 		eic_writel(eic, LEVEL, level);
 
-		if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
+		if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) {
 			flow_type |= IRQ_LEVEL;
+			__set_irq_handler_unlocked(irq, handle_level_irq);
+		} else
+			__set_irq_handler_unlocked(irq, handle_edge_irq);
 		desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
 		desc->status |= flow_type;
 	}
@@ -151,9 +154,8 @@ static struct irq_chip eic_chip = {
 static void demux_eic_irq(unsigned int irq, struct irq_desc *desc)
 {
 	struct eic *eic = desc->handler_data;
-	struct irq_desc *ext_desc;
 	unsigned long status, pending;
-	unsigned int i, ext_irq;
+	unsigned int i;
 
 	status = eic_readl(eic, ISR);
 	pending = status & eic_readl(eic, IMR);
@@ -162,12 +164,7 @@ static void demux_eic_irq(unsigned int irq, struct irq_desc *desc)
 		i = fls(pending) - 1;
 		pending &= ~(1 << i);
 
-		ext_irq = i + eic->first_irq;
-		ext_desc = irq_desc + ext_irq;
-		if (ext_desc->status & IRQ_LEVEL)
-			handle_level_irq(ext_irq, ext_desc);
-		else
-			handle_edge_irq(ext_irq, ext_desc);
+		generic_handle_irq(i + eic->first_irq);
 	}
 }
 
@@ -236,9 +233,8 @@ static int __init eic_probe(struct platform_device *pdev)
 	eic->chip = &eic_chip;
 
 	for (i = 0; i < nr_irqs; i++) {
-		/* NOTE the handler we set here is ignored by the demux */
 		set_irq_chip_and_handler(eic->first_irq + i, &eic_chip,
-					 handle_level_irq);
+					 handle_edge_irq);
 		set_irq_chip_data(eic->first_irq + i, eic);
 	}
 
-- 
cgit v1.2.3-59-g8ed1b


From d6c49a7a78fc841418bbd58bda504076f80ec51d Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Thu, 24 Jan 2008 16:56:53 +0100
Subject: [AVR32] extint: Set initial irq type to low level

David Brownell pointed out a mismatch in the avr32 extint code:

> I noticed a small glitch that's not fixed by this patch:  the
> initial type is falling edge, but IRQ_TYPE_NONE is mapped to
> IRQ_TYPE_LEVEL_LOW.  Potentially surprising.

Fix it by setting the initial type (and handler) to low level,
matching the meaning of IRQ_TYPE_NONE.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
 arch/avr32/mach-at32ap/extint.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c
index 81a4a02f5f42..c36a6d59d6f0 100644
--- a/arch/avr32/mach-at32ap/extint.c
+++ b/arch/avr32/mach-at32ap/extint.c
@@ -226,15 +226,15 @@ static int __init eic_probe(struct platform_device *pdev)
 	pattern = eic_readl(eic, MODE);
 	nr_irqs = fls(pattern);
 
-	/* Trigger on falling edge unless overridden by driver */
-	eic_writel(eic, MODE, 0UL);
+	/* Trigger on low level unless overridden by driver */
 	eic_writel(eic, EDGE, 0UL);
+	eic_writel(eic, LEVEL, 0UL);
 
 	eic->chip = &eic_chip;
 
 	for (i = 0; i < nr_irqs; i++) {
 		set_irq_chip_and_handler(eic->first_irq + i, &eic_chip,
-					 handle_edge_irq);
+					 handle_level_irq);
 		set_irq_chip_data(eic->first_irq + i, eic);
 	}
 
-- 
cgit v1.2.3-59-g8ed1b


From b842271fbb9c8b5fd0e1c3e1895a3b67ba5bcc54 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 25 Jan 2008 21:07:59 +0100
Subject: sched: remove printk_clock()

printk_clock() is obsolete - it has been replaced with cpu_clock().

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/arm/kernel/time.c  | 11 -----------
 arch/ia64/kernel/time.c | 27 ---------------------------
 kernel/printk.c         |  5 -----
 3 files changed, 43 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index f6f3689a86ee..e59b5b84168d 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -79,17 +79,6 @@ static unsigned long dummy_gettimeoffset(void)
 }
 #endif
 
-/*
- * An implementation of printk_clock() independent from
- * sched_clock().  This avoids non-bootable kernels when
- * printk_clock is enabled.
- */
-unsigned long long printk_clock(void)
-{
-	return (unsigned long long)(jiffies - INITIAL_JIFFIES) *
-			(1000000000 / HZ);
-}
-
 static unsigned long next_rtc_update;
 
 /*
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index 2bb84214e5f1..3ab042720970 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -344,33 +344,6 @@ udelay (unsigned long usecs)
 }
 EXPORT_SYMBOL(udelay);
 
-static unsigned long long ia64_itc_printk_clock(void)
-{
-	if (ia64_get_kr(IA64_KR_PER_CPU_DATA))
-		return sched_clock();
-	return 0;
-}
-
-static unsigned long long ia64_default_printk_clock(void)
-{
-	return (unsigned long long)(jiffies_64 - INITIAL_JIFFIES) *
-		(1000000000/HZ);
-}
-
-unsigned long long (*ia64_printk_clock)(void) = &ia64_default_printk_clock;
-
-unsigned long long printk_clock(void)
-{
-	return ia64_printk_clock();
-}
-
-void __init
-ia64_setup_printk_clock(void)
-{
-	if (!(sal_platform_features & IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT))
-		ia64_printk_clock = ia64_itc_printk_clock;
-}
-
 /* IA64 doesn't cache the timezone */
 void update_vsyscall_tz(void)
 {
diff --git a/kernel/printk.c b/kernel/printk.c
index 5f9d053699f9..3b7c968d0ef9 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -573,11 +573,6 @@ static int __init printk_time_setup(char *str)
 
 __setup("time", printk_time_setup);
 
-__attribute__((weak)) unsigned long long printk_clock(void)
-{
-	return sched_clock();
-}
-
 /* Check if we have any console registered that can be called early in boot. */
 static int have_callable_console(void)
 {
-- 
cgit v1.2.3-59-g8ed1b


From 86faf39d0fc04272b05fab1db6d683f3ac7199d1 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 25 Jan 2008 21:07:59 +0100
Subject: sched: remove printk_clock references from ia64

remove remaining printk_clock references from ia64.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/ia64/kernel/setup.c    |  4 ----
 arch/ia64/sn/kernel/setup.c | 11 -----------
 2 files changed, 15 deletions(-)

(limited to 'arch')

diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 4ac2b1f1bd3b..86028c69861e 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -71,8 +71,6 @@ unsigned long __per_cpu_offset[NR_CPUS];
 EXPORT_SYMBOL(__per_cpu_offset);
 #endif
 
-extern void ia64_setup_printk_clock(void);
-
 DEFINE_PER_CPU(struct cpuinfo_ia64, cpu_info);
 DEFINE_PER_CPU(unsigned long, local_per_cpu_offset);
 unsigned long ia64_cycles_per_usec;
@@ -507,8 +505,6 @@ setup_arch (char **cmdline_p)
 	/* process SAL system table: */
 	ia64_sal_init(__va(efi.sal_systab));
 
-	ia64_setup_printk_clock();
-
 #ifdef CONFIG_SMP
 	cpu_physical_id(0) = hard_smp_processor_id();
 #endif
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 1f38a3a68390..bb1d24929640 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -64,7 +64,6 @@ extern void sn_timer_init(void);
 extern unsigned long last_time_offset;
 extern void (*ia64_mark_idle) (int);
 extern void snidle(int);
-extern unsigned long long (*ia64_printk_clock)(void);
 
 unsigned long sn_rtc_cycles_per_second;
 EXPORT_SYMBOL(sn_rtc_cycles_per_second);
@@ -360,14 +359,6 @@ sn_scan_pcdp(void)
 
 static unsigned long sn2_rtc_initial;
 
-static unsigned long long ia64_sn2_printk_clock(void)
-{
-	unsigned long rtc_now = rtc_time();
-
-	return (rtc_now - sn2_rtc_initial) *
-		(1000000000 / sn_rtc_cycles_per_second);
-}
-
 /**
  * sn_setup - SN platform setup routine
  * @cmdline_p: kernel command line
@@ -468,8 +459,6 @@ void __init sn_setup(char **cmdline_p)
 
 	platform_intr_list[ACPI_INTERRUPT_CPEI] = IA64_CPE_VECTOR;
 
-	ia64_printk_clock = ia64_sn2_printk_clock;
-
 	printk("SGI SAL version %x.%02x\n", version >> 8, version & 0x00FF);
 
 	/*
-- 
cgit v1.2.3-59-g8ed1b


From 86ef5c9a8edd78e6bf92879f32329d89b2d55b5a Mon Sep 17 00:00:00 2001
From: Gautham R Shenoy <ego@in.ibm.com>
Date: Fri, 25 Jan 2008 21:08:02 +0100
Subject: cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus()

Replace all lock_cpu_hotplug/unlock_cpu_hotplug from the kernel and use
get_online_cpus and put_online_cpus instead as it highlights the
refcount semantics in these operations.

The new API guarantees protection against the cpu-hotplug operation, but
it doesn't guarantee serialized access to any of the local data
structures. Hence the changes needs to be reviewed.

In case of pseries_add_processor/pseries_remove_processor, use
cpu_maps_update_begin()/cpu_maps_update_done() as we're modifying the
cpu_present_map there.

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 Documentation/cpu-hotplug.txt                | 11 ++++++-----
 arch/mips/kernel/mips-mt-fpaff.c             | 10 +++++-----
 arch/powerpc/platforms/pseries/hotplug-cpu.c |  8 ++++----
 arch/powerpc/platforms/pseries/rtasd.c       |  8 ++++----
 arch/x86/kernel/cpu/mtrr/main.c              |  8 ++++----
 arch/x86/kernel/microcode.c                  | 16 ++++++++--------
 drivers/lguest/x86/core.c                    |  8 ++++----
 drivers/s390/char/sclp_config.c              |  4 ++--
 include/linux/cpu.h                          |  8 ++++----
 kernel/cpu.c                                 | 10 +++++-----
 kernel/cpuset.c                              | 14 +++++++-------
 kernel/rcutorture.c                          |  6 +++---
 kernel/sched.c                               |  4 ++--
 kernel/stop_machine.c                        |  4 ++--
 net/core/flow.c                              |  4 ++--
 15 files changed, 62 insertions(+), 61 deletions(-)

(limited to 'arch')

diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt
index a741f658a3c9..fb94f5a71b68 100644
--- a/Documentation/cpu-hotplug.txt
+++ b/Documentation/cpu-hotplug.txt
@@ -109,12 +109,13 @@ Never use anything other than cpumask_t to represent bitmap of CPUs.
 	for_each_cpu_mask(x,mask) - Iterate over some random collection of cpu mask.
 
 	#include <linux/cpu.h>
-	lock_cpu_hotplug() and unlock_cpu_hotplug():
+	get_online_cpus() and put_online_cpus():
 
-The above calls are used to inhibit cpu hotplug operations. While holding the
-cpucontrol mutex, cpu_online_map will not change. If you merely need to avoid
-cpus going away, you could also use preempt_disable() and preempt_enable()
-for those sections. Just remember the critical section cannot call any
+The above calls are used to inhibit cpu hotplug operations. While the
+cpu_hotplug.refcount is non zero, the cpu_online_map will not change.
+If you merely need to avoid cpus going away, you could also use
+preempt_disable() and preempt_enable() for those sections.
+Just remember the critical section cannot call any
 function that can sleep or schedule this process away. The preempt_disable()
 will work as long as stop_machine_run() is used to take a cpu down.
 
diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c
index 892665bb12b1..bb4f00c0cbe9 100644
--- a/arch/mips/kernel/mips-mt-fpaff.c
+++ b/arch/mips/kernel/mips-mt-fpaff.c
@@ -58,13 +58,13 @@ asmlinkage long mipsmt_sys_sched_setaffinity(pid_t pid, unsigned int len,
 	if (copy_from_user(&new_mask, user_mask_ptr, sizeof(new_mask)))
 		return -EFAULT;
 
-	lock_cpu_hotplug();
+	get_online_cpus();
 	read_lock(&tasklist_lock);
 
 	p = find_process_by_pid(pid);
 	if (!p) {
 		read_unlock(&tasklist_lock);
-		unlock_cpu_hotplug();
+		put_online_cpus();
 		return -ESRCH;
 	}
 
@@ -106,7 +106,7 @@ asmlinkage long mipsmt_sys_sched_setaffinity(pid_t pid, unsigned int len,
 
 out_unlock:
 	put_task_struct(p);
-	unlock_cpu_hotplug();
+	put_online_cpus();
 	return retval;
 }
 
@@ -125,7 +125,7 @@ asmlinkage long mipsmt_sys_sched_getaffinity(pid_t pid, unsigned int len,
 	if (len < real_len)
 		return -EINVAL;
 
-	lock_cpu_hotplug();
+	get_online_cpus();
 	read_lock(&tasklist_lock);
 
 	retval = -ESRCH;
@@ -140,7 +140,7 @@ asmlinkage long mipsmt_sys_sched_getaffinity(pid_t pid, unsigned int len,
 
 out_unlock:
 	read_unlock(&tasklist_lock);
-	unlock_cpu_hotplug();
+	put_online_cpus();
 	if (retval)
 		return retval;
 	if (copy_to_user(user_mask_ptr, &mask, real_len))
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index 412e6b42986f..c4ad54e0f288 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -153,7 +153,7 @@ static int pseries_add_processor(struct device_node *np)
 	for (i = 0; i < nthreads; i++)
 		cpu_set(i, tmp);
 
-	lock_cpu_hotplug();
+	cpu_maps_update_begin();
 
 	BUG_ON(!cpus_subset(cpu_present_map, cpu_possible_map));
 
@@ -190,7 +190,7 @@ static int pseries_add_processor(struct device_node *np)
 	}
 	err = 0;
 out_unlock:
-	unlock_cpu_hotplug();
+	cpu_maps_update_done();
 	return err;
 }
 
@@ -211,7 +211,7 @@ static void pseries_remove_processor(struct device_node *np)
 
 	nthreads = len / sizeof(u32);
 
-	lock_cpu_hotplug();
+	cpu_maps_update_begin();
 	for (i = 0; i < nthreads; i++) {
 		for_each_present_cpu(cpu) {
 			if (get_hard_smp_processor_id(cpu) != intserv[i])
@@ -225,7 +225,7 @@ static void pseries_remove_processor(struct device_node *np)
 			printk(KERN_WARNING "Could not find cpu to remove "
 			       "with physical id 0x%x\n", intserv[i]);
 	}
-	unlock_cpu_hotplug();
+	cpu_maps_update_done();
 }
 
 static int pseries_smp_notifier(struct notifier_block *nb,
diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c
index 73401c820110..e3078ce41518 100644
--- a/arch/powerpc/platforms/pseries/rtasd.c
+++ b/arch/powerpc/platforms/pseries/rtasd.c
@@ -382,7 +382,7 @@ static void do_event_scan_all_cpus(long delay)
 {
 	int cpu;
 
-	lock_cpu_hotplug();
+	get_online_cpus();
 	cpu = first_cpu(cpu_online_map);
 	for (;;) {
 		set_cpus_allowed(current, cpumask_of_cpu(cpu));
@@ -390,15 +390,15 @@ static void do_event_scan_all_cpus(long delay)
 		set_cpus_allowed(current, CPU_MASK_ALL);
 
 		/* Drop hotplug lock, and sleep for the specified delay */
-		unlock_cpu_hotplug();
+		put_online_cpus();
 		msleep_interruptible(delay);
-		lock_cpu_hotplug();
+		get_online_cpus();
 
 		cpu = next_cpu(cpu, cpu_online_map);
 		if (cpu == NR_CPUS)
 			break;
 	}
-	unlock_cpu_hotplug();
+	put_online_cpus();
 }
 
 static int rtasd(void *unused)
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 3b20613325dc..beb45c9c0835 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -349,7 +349,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
 	replace = -1;
 
 	/* No CPU hotplug when we change MTRR entries */
-	lock_cpu_hotplug();
+	get_online_cpus();
 	/*  Search for existing MTRR  */
 	mutex_lock(&mtrr_mutex);
 	for (i = 0; i < num_var_ranges; ++i) {
@@ -405,7 +405,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
 	error = i;
  out:
 	mutex_unlock(&mtrr_mutex);
-	unlock_cpu_hotplug();
+	put_online_cpus();
 	return error;
 }
 
@@ -495,7 +495,7 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
 
 	max = num_var_ranges;
 	/* No CPU hotplug when we change MTRR entries */
-	lock_cpu_hotplug();
+	get_online_cpus();
 	mutex_lock(&mtrr_mutex);
 	if (reg < 0) {
 		/*  Search for existing MTRR  */
@@ -536,7 +536,7 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
 	error = reg;
  out:
 	mutex_unlock(&mtrr_mutex);
-	unlock_cpu_hotplug();
+	put_online_cpus();
 	return error;
 }
 /**
diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c
index 09c315214a5e..40cfd5488719 100644
--- a/arch/x86/kernel/microcode.c
+++ b/arch/x86/kernel/microcode.c
@@ -436,7 +436,7 @@ static ssize_t microcode_write (struct file *file, const char __user *buf, size_
 		return -EINVAL;
 	}
 
-	lock_cpu_hotplug();
+	get_online_cpus();
 	mutex_lock(&microcode_mutex);
 
 	user_buffer = (void __user *) buf;
@@ -447,7 +447,7 @@ static ssize_t microcode_write (struct file *file, const char __user *buf, size_
 		ret = (ssize_t)len;
 
 	mutex_unlock(&microcode_mutex);
-	unlock_cpu_hotplug();
+	put_online_cpus();
 
 	return ret;
 }
@@ -658,14 +658,14 @@ static ssize_t reload_store(struct sys_device *dev, const char *buf, size_t sz)
 
 		old = current->cpus_allowed;
 
-		lock_cpu_hotplug();
+		get_online_cpus();
 		set_cpus_allowed(current, cpumask_of_cpu(cpu));
 
 		mutex_lock(&microcode_mutex);
 		if (uci->valid)
 			err = cpu_request_microcode(cpu);
 		mutex_unlock(&microcode_mutex);
-		unlock_cpu_hotplug();
+		put_online_cpus();
 		set_cpus_allowed(current, old);
 	}
 	if (err)
@@ -817,9 +817,9 @@ static int __init microcode_init (void)
 		return PTR_ERR(microcode_pdev);
 	}
 
-	lock_cpu_hotplug();
+	get_online_cpus();
 	error = sysdev_driver_register(&cpu_sysdev_class, &mc_sysdev_driver);
-	unlock_cpu_hotplug();
+	put_online_cpus();
 	if (error) {
 		microcode_dev_exit();
 		platform_device_unregister(microcode_pdev);
@@ -839,9 +839,9 @@ static void __exit microcode_exit (void)
 
 	unregister_hotcpu_notifier(&mc_cpu_notifier);
 
-	lock_cpu_hotplug();
+	get_online_cpus();
 	sysdev_driver_unregister(&cpu_sysdev_class, &mc_sysdev_driver);
-	unlock_cpu_hotplug();
+	put_online_cpus();
 
 	platform_device_unregister(microcode_pdev);
 }
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index 482aec2a9631..96d0fd07c57d 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -459,7 +459,7 @@ void __init lguest_arch_host_init(void)
 
 	/* We don't need the complexity of CPUs coming and going while we're
 	 * doing this. */
-	lock_cpu_hotplug();
+	get_online_cpus();
 	if (cpu_has_pge) { /* We have a broader idea of "global". */
 		/* Remember that this was originally set (for cleanup). */
 		cpu_had_pge = 1;
@@ -469,20 +469,20 @@ void __init lguest_arch_host_init(void)
 		/* Turn off the feature in the global feature set. */
 		clear_bit(X86_FEATURE_PGE, boot_cpu_data.x86_capability);
 	}
-	unlock_cpu_hotplug();
+	put_online_cpus();
 };
 /*:*/
 
 void __exit lguest_arch_host_fini(void)
 {
 	/* If we had PGE before we started, turn it back on now. */
-	lock_cpu_hotplug();
+	get_online_cpus();
 	if (cpu_had_pge) {
 		set_bit(X86_FEATURE_PGE, boot_cpu_data.x86_capability);
 		/* adjust_pge's argument "1" means set PGE. */
 		on_each_cpu(adjust_pge, (void *)1, 0, 1);
 	}
-	unlock_cpu_hotplug();
+	put_online_cpus();
 }
 
 
diff --git a/drivers/s390/char/sclp_config.c b/drivers/s390/char/sclp_config.c
index 5322e5e54a98..9dc77f14fa52 100644
--- a/drivers/s390/char/sclp_config.c
+++ b/drivers/s390/char/sclp_config.c
@@ -29,12 +29,12 @@ static void sclp_cpu_capability_notify(struct work_struct *work)
 	struct sys_device *sysdev;
 
 	printk(KERN_WARNING TAG "cpu capability changed.\n");
-	lock_cpu_hotplug();
+	get_online_cpus();
 	for_each_online_cpu(cpu) {
 		sysdev = get_cpu_sysdev(cpu);
 		kobject_uevent(&sysdev->kobj, KOBJ_CHANGE);
 	}
-	unlock_cpu_hotplug();
+	put_online_cpus();
 }
 
 static void sclp_conf_receiver_fn(struct evbuf_header *evbuf)
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index a40247e4d462..3a3ff1c5cbef 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -100,8 +100,8 @@ static inline void cpuhotplug_mutex_unlock(struct mutex *cpu_hp_mutex)
 	mutex_unlock(cpu_hp_mutex);
 }
 
-extern void lock_cpu_hotplug(void);
-extern void unlock_cpu_hotplug(void);
+extern void get_online_cpus(void);
+extern void put_online_cpus(void);
 #define hotcpu_notifier(fn, pri) {				\
 	static struct notifier_block fn##_nb =			\
 		{ .notifier_call = fn, .priority = pri };	\
@@ -118,8 +118,8 @@ static inline void cpuhotplug_mutex_lock(struct mutex *cpu_hp_mutex)
 static inline void cpuhotplug_mutex_unlock(struct mutex *cpu_hp_mutex)
 { }
 
-#define lock_cpu_hotplug()	do { } while (0)
-#define unlock_cpu_hotplug()	do { } while (0)
+#define get_online_cpus()	do { } while (0)
+#define put_online_cpus()	do { } while (0)
 #define hotcpu_notifier(fn, pri)	do { (void)(fn); } while (0)
 /* These aren't inline functions due to a GCC bug. */
 #define register_hotcpu_notifier(nb)	({ (void)(nb); 0; })
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 656dc3fcbbae..b0c4152995f8 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -48,7 +48,7 @@ void __init cpu_hotplug_init(void)
 
 #ifdef CONFIG_HOTPLUG_CPU
 
-void lock_cpu_hotplug(void)
+void get_online_cpus(void)
 {
 	might_sleep();
 	if (cpu_hotplug.active_writer == current)
@@ -58,9 +58,9 @@ void lock_cpu_hotplug(void)
 	mutex_unlock(&cpu_hotplug.lock);
 
 }
-EXPORT_SYMBOL_GPL(lock_cpu_hotplug);
+EXPORT_SYMBOL_GPL(get_online_cpus);
 
-void unlock_cpu_hotplug(void)
+void put_online_cpus(void)
 {
 	if (cpu_hotplug.active_writer == current)
 		return;
@@ -73,7 +73,7 @@ void unlock_cpu_hotplug(void)
 	mutex_unlock(&cpu_hotplug.lock);
 
 }
-EXPORT_SYMBOL_GPL(unlock_cpu_hotplug);
+EXPORT_SYMBOL_GPL(put_online_cpus);
 
 #endif	/* CONFIG_HOTPLUG_CPU */
 
@@ -110,7 +110,7 @@ void cpu_maps_update_done(void)
  *   non zero and goes to sleep again.
  *
  * However, this is very difficult to achieve in practice since
- * lock_cpu_hotplug() not an api which is called all that often.
+ * get_online_cpus() not an api which is called all that often.
  *
  */
 static void cpu_hotplug_begin(void)
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 50f5dc463688..cfaf6419d817 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -537,10 +537,10 @@ static int cpusets_overlap(struct cpuset *a, struct cpuset *b)
  *
  * Call with cgroup_mutex held.  May take callback_mutex during
  * call due to the kfifo_alloc() and kmalloc() calls.  May nest
- * a call to the lock_cpu_hotplug()/unlock_cpu_hotplug() pair.
+ * a call to the get_online_cpus()/put_online_cpus() pair.
  * Must not be called holding callback_mutex, because we must not
- * call lock_cpu_hotplug() while holding callback_mutex.  Elsewhere
- * the kernel nests callback_mutex inside lock_cpu_hotplug() calls.
+ * call get_online_cpus() while holding callback_mutex.  Elsewhere
+ * the kernel nests callback_mutex inside get_online_cpus() calls.
  * So the reverse nesting would risk an ABBA deadlock.
  *
  * The three key local variables below are:
@@ -691,9 +691,9 @@ restart:
 
 rebuild:
 	/* Have scheduler rebuild sched domains */
-	lock_cpu_hotplug();
+	get_online_cpus();
 	partition_sched_domains(ndoms, doms);
-	unlock_cpu_hotplug();
+	put_online_cpus();
 
 done:
 	if (q && !IS_ERR(q))
@@ -1617,10 +1617,10 @@ static struct cgroup_subsys_state *cpuset_create(
  *
  * If the cpuset being removed has its flag 'sched_load_balance'
  * enabled, then simulate turning sched_load_balance off, which
- * will call rebuild_sched_domains().  The lock_cpu_hotplug()
+ * will call rebuild_sched_domains().  The get_online_cpus()
  * call in rebuild_sched_domains() must not be made while holding
  * callback_mutex.  Elsewhere the kernel nests callback_mutex inside
- * lock_cpu_hotplug() calls.  So the reverse nesting would risk an
+ * get_online_cpus() calls.  So the reverse nesting would risk an
  * ABBA deadlock.
  */
 
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index c3e165c2318f..fd599829e72a 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -726,11 +726,11 @@ static void rcu_torture_shuffle_tasks(void)
 	cpumask_t tmp_mask = CPU_MASK_ALL;
 	int i;
 
-	lock_cpu_hotplug();
+	get_online_cpus();
 
 	/* No point in shuffling if there is only one online CPU (ex: UP) */
 	if (num_online_cpus() == 1) {
-		unlock_cpu_hotplug();
+		put_online_cpus();
 		return;
 	}
 
@@ -762,7 +762,7 @@ static void rcu_torture_shuffle_tasks(void)
 	else
 		rcu_idle_cpu--;
 
-	unlock_cpu_hotplug();
+	put_online_cpus();
 }
 
 /* Shuffle tasks across CPUs, with the intent of allowing each CPU in the
diff --git a/kernel/sched.c b/kernel/sched.c
index 86e55a9c2de6..672aa68bfeac 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -7152,7 +7152,7 @@ static int load_balance_monitor(void *unused)
 		int i, cpu, balanced = 1;
 
 		/* Prevent cpus going down or coming up */
-		lock_cpu_hotplug();
+		get_online_cpus();
 		/* lockout changes to doms_cur[] array */
 		lock_doms_cur();
 		/*
@@ -7186,7 +7186,7 @@ static int load_balance_monitor(void *unused)
 		rcu_read_unlock();
 
 		unlock_doms_cur();
-		unlock_cpu_hotplug();
+		put_online_cpus();
 
 		if (!balanced)
 			timeout = sysctl_sched_min_bal_int_shares;
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index 319821ef78af..51b5ee53571a 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -203,13 +203,13 @@ int stop_machine_run(int (*fn)(void *), void *data, unsigned int cpu)
 	int ret;
 
 	/* No CPUs can come up or down during this. */
-	lock_cpu_hotplug();
+	get_online_cpus();
 	p = __stop_machine_run(fn, data, cpu);
 	if (!IS_ERR(p))
 		ret = kthread_stop(p);
 	else
 		ret = PTR_ERR(p);
-	unlock_cpu_hotplug();
+	put_online_cpus();
 
 	return ret;
 }
diff --git a/net/core/flow.c b/net/core/flow.c
index 3ed2b4b1d6d4..6489f4e24ecf 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -293,7 +293,7 @@ void flow_cache_flush(void)
 	static DEFINE_MUTEX(flow_flush_sem);
 
 	/* Don't want cpus going down or up during this. */
-	lock_cpu_hotplug();
+	get_online_cpus();
 	mutex_lock(&flow_flush_sem);
 	atomic_set(&info.cpuleft, num_online_cpus());
 	init_completion(&info.completion);
@@ -305,7 +305,7 @@ void flow_cache_flush(void)
 
 	wait_for_completion(&info.completion);
 	mutex_unlock(&flow_flush_sem);
-	unlock_cpu_hotplug();
+	put_online_cpus();
 }
 
 static void __devinit flow_cache_cpu_prepare(int cpu)
-- 
cgit v1.2.3-59-g8ed1b


From 8f4d37ec073c17e2d4aa8851df5837d798606d6f Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Fri, 25 Jan 2008 21:08:29 +0100
Subject: sched: high-res preemption tick

Use HR-timers (when available) to deliver an accurate preemption tick.

The regular scheduler tick that runs at 1/HZ can be too coarse when nice
level are used. The fairness system will still keep the cpu utilisation 'fair'
by then delaying the task that got an excessive amount of CPU time but try to
minimize this by delivering preemption points spot-on.

The average frequency of this extra interrupt is sched_latency / nr_latency.
Which need not be higher than 1/HZ, its just that the distribution within the
sched_latency period is important.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/entry_64.S       |   6 +-
 arch/x86/kernel/signal_32.c      |   3 +
 arch/x86/kernel/signal_64.c      |   3 +
 include/asm-x86/thread_info_32.h |   2 +
 include/asm-x86/thread_info_64.h |   5 +
 include/linux/hrtimer.h          |   9 ++
 include/linux/sched.h            |   3 +-
 kernel/Kconfig.hz                |   2 +
 kernel/sched.c                   | 210 +++++++++++++++++++++++++++++++++++++--
 kernel/sched_fair.c              |  69 ++++++++++++-
 kernel/sched_idletask.c          |   2 +-
 kernel/sched_rt.c                |   2 +-
 12 files changed, 295 insertions(+), 21 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 3a058bb16409..e70f3881d7e4 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -283,7 +283,7 @@ sysret_careful:
 sysret_signal:
 	TRACE_IRQS_ON
 	sti
-	testl $(_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY),%edx
+	testl $_TIF_DO_NOTIFY_MASK,%edx
 	jz    1f
 
 	/* Really a signal */
@@ -377,7 +377,7 @@ int_very_careful:
 	jmp int_restore_rest
 	
 int_signal:
-	testl $(_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY),%edx
+	testl $_TIF_DO_NOTIFY_MASK,%edx
 	jz 1f
 	movq %rsp,%rdi		# &ptregs -> arg1
 	xorl %esi,%esi		# oldset -> arg2
@@ -603,7 +603,7 @@ retint_careful:
 	jmp retint_check
 	
 retint_signal:
-	testl $(_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY),%edx
+	testl $_TIF_DO_NOTIFY_MASK,%edx
 	jz    retint_swapgs
 	TRACE_IRQS_ON
 	sti
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 9bdd83022f5f..20f29e4c1d33 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -658,6 +658,9 @@ void do_notify_resume(struct pt_regs *regs, void *_unused,
 	/* deal with pending signal delivery */
 	if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
 		do_signal(regs);
+
+	if (thread_info_flags & _TIF_HRTICK_RESCHED)
+		hrtick_resched();
 	
 	clear_thread_flag(TIF_IRET);
 }
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index ab086b0357fc..38d806467c0f 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -480,6 +480,9 @@ do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
 	/* deal with pending signal delivery */
 	if (thread_info_flags & (_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK))
 		do_signal(regs);
+
+	if (thread_info_flags & _TIF_HRTICK_RESCHED)
+		hrtick_resched();
 }
 
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where)
diff --git a/include/asm-x86/thread_info_32.h b/include/asm-x86/thread_info_32.h
index 22a8cbcd35e2..ef58fd2a6eb0 100644
--- a/include/asm-x86/thread_info_32.h
+++ b/include/asm-x86/thread_info_32.h
@@ -132,6 +132,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_SYSCALL_AUDIT	6	/* syscall auditing active */
 #define TIF_SECCOMP		7	/* secure computing */
 #define TIF_RESTORE_SIGMASK	8	/* restore signal mask in do_signal() */
+#define TIF_HRTICK_RESCHED	9	/* reprogram hrtick timer */
 #define TIF_MEMDIE		16
 #define TIF_DEBUG		17	/* uses debug registers */
 #define TIF_IO_BITMAP		18	/* uses I/O bitmap */
@@ -147,6 +148,7 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_SYSCALL_AUDIT	(1<<TIF_SYSCALL_AUDIT)
 #define _TIF_SECCOMP		(1<<TIF_SECCOMP)
 #define _TIF_RESTORE_SIGMASK	(1<<TIF_RESTORE_SIGMASK)
+#define _TIF_HRTICK_RESCHED	(1<<TIF_HRTICK_RESCHED)
 #define _TIF_DEBUG		(1<<TIF_DEBUG)
 #define _TIF_IO_BITMAP		(1<<TIF_IO_BITMAP)
 #define _TIF_FREEZE		(1<<TIF_FREEZE)
diff --git a/include/asm-x86/thread_info_64.h b/include/asm-x86/thread_info_64.h
index beae2bfb62ca..7f6ee68f0002 100644
--- a/include/asm-x86/thread_info_64.h
+++ b/include/asm-x86/thread_info_64.h
@@ -115,6 +115,7 @@ static inline struct thread_info *stack_thread_info(void)
 #define TIF_SECCOMP		8	/* secure computing */
 #define TIF_RESTORE_SIGMASK	9	/* restore signal mask in do_signal */
 #define TIF_MCE_NOTIFY		10	/* notify userspace of an MCE */
+#define TIF_HRTICK_RESCHED	11	/* reprogram hrtick timer */
 /* 16 free */
 #define TIF_IA32		17	/* 32bit process */ 
 #define TIF_FORK		18	/* ret_from_fork */
@@ -133,6 +134,7 @@ static inline struct thread_info *stack_thread_info(void)
 #define _TIF_SECCOMP		(1<<TIF_SECCOMP)
 #define _TIF_RESTORE_SIGMASK	(1<<TIF_RESTORE_SIGMASK)
 #define _TIF_MCE_NOTIFY		(1<<TIF_MCE_NOTIFY)
+#define _TIF_HRTICK_RESCHED	(1<<TIF_HRTICK_RESCHED)
 #define _TIF_IA32		(1<<TIF_IA32)
 #define _TIF_FORK		(1<<TIF_FORK)
 #define _TIF_ABI_PENDING	(1<<TIF_ABI_PENDING)
@@ -146,6 +148,9 @@ static inline struct thread_info *stack_thread_info(void)
 /* work to do on any return to user space */
 #define _TIF_ALLWORK_MASK (0x0000FFFF & ~_TIF_SECCOMP)
 
+#define _TIF_DO_NOTIFY_MASK \
+	(_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY|_TIF_HRTICK_RESCHED)
+
 /* flags to check in __switch_to() */
 #define _TIF_WORK_CTXSW (_TIF_DEBUG|_TIF_IO_BITMAP)
 
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 7a9398e19704..ecc8e2685e2b 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -217,6 +217,11 @@ static inline ktime_t hrtimer_cb_get_time(struct hrtimer *timer)
 	return timer->base->get_time();
 }
 
+static inline int hrtimer_is_hres_active(struct hrtimer *timer)
+{
+	return timer->base->cpu_base->hres_active;
+}
+
 /*
  * The resolution of the clocks. The resolution value is returned in
  * the clock_getres() system call to give application programmers an
@@ -248,6 +253,10 @@ static inline ktime_t hrtimer_cb_get_time(struct hrtimer *timer)
 	return timer->base->softirq_time;
 }
 
+static inline int hrtimer_is_hres_active(struct hrtimer *timer)
+{
+	return 0;
+}
 #endif
 
 extern ktime_t ktime_get(void);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 7907845c2348..43e0339d65fc 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -257,6 +257,7 @@ extern void trap_init(void);
 extern void account_process_tick(struct task_struct *task, int user);
 extern void update_process_times(int user);
 extern void scheduler_tick(void);
+extern void hrtick_resched(void);
 
 extern void sched_show_task(struct task_struct *p);
 
@@ -849,7 +850,7 @@ struct sched_class {
 #endif
 
 	void (*set_curr_task) (struct rq *rq);
-	void (*task_tick) (struct rq *rq, struct task_struct *p);
+	void (*task_tick) (struct rq *rq, struct task_struct *p, int queued);
 	void (*task_new) (struct rq *rq, struct task_struct *p);
 	void (*set_cpus_allowed)(struct task_struct *p, cpumask_t *newmask);
 
diff --git a/kernel/Kconfig.hz b/kernel/Kconfig.hz
index 4af15802ccd4..526128a2e622 100644
--- a/kernel/Kconfig.hz
+++ b/kernel/Kconfig.hz
@@ -54,3 +54,5 @@ config HZ
 	default 300 if HZ_300
 	default 1000 if HZ_1000
 
+config SCHED_HRTICK
+	def_bool HIGH_RES_TIMERS && X86
diff --git a/kernel/sched.c b/kernel/sched.c
index 6ee37602a6d8..17f93d3eda91 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -65,6 +65,7 @@
 #include <linux/reciprocal_div.h>
 #include <linux/unistd.h>
 #include <linux/pagemap.h>
+#include <linux/hrtimer.h>
 
 #include <asm/tlb.h>
 #include <asm/irq_regs.h>
@@ -451,6 +452,12 @@ struct rq {
 	struct list_head migration_queue;
 #endif
 
+#ifdef CONFIG_SCHED_HRTICK
+	unsigned long hrtick_flags;
+	ktime_t hrtick_expire;
+	struct hrtimer hrtick_timer;
+#endif
+
 #ifdef CONFIG_SCHEDSTATS
 	/* latency stats */
 	struct sched_info rq_sched_info;
@@ -572,6 +579,8 @@ enum {
 	SCHED_FEAT_START_DEBIT		= 4,
 	SCHED_FEAT_TREE_AVG		= 8,
 	SCHED_FEAT_APPROX_AVG		= 16,
+	SCHED_FEAT_HRTICK		= 32,
+	SCHED_FEAT_DOUBLE_TICK		= 64,
 };
 
 const_debug unsigned int sysctl_sched_features =
@@ -579,7 +588,9 @@ const_debug unsigned int sysctl_sched_features =
 		SCHED_FEAT_WAKEUP_PREEMPT	* 1 |
 		SCHED_FEAT_START_DEBIT		* 1 |
 		SCHED_FEAT_TREE_AVG		* 0 |
-		SCHED_FEAT_APPROX_AVG		* 0;
+		SCHED_FEAT_APPROX_AVG		* 0 |
+		SCHED_FEAT_HRTICK		* 1 |
+		SCHED_FEAT_DOUBLE_TICK		* 0;
 
 #define sched_feat(x) (sysctl_sched_features & SCHED_FEAT_##x)
 
@@ -796,6 +807,173 @@ void sched_clock_idle_wakeup_event(u64 delta_ns)
 }
 EXPORT_SYMBOL_GPL(sched_clock_idle_wakeup_event);
 
+static void __resched_task(struct task_struct *p, int tif_bit);
+
+static inline void resched_task(struct task_struct *p)
+{
+	__resched_task(p, TIF_NEED_RESCHED);
+}
+
+#ifdef CONFIG_SCHED_HRTICK
+/*
+ * Use HR-timers to deliver accurate preemption points.
+ *
+ * Its all a bit involved since we cannot program an hrt while holding the
+ * rq->lock. So what we do is store a state in in rq->hrtick_* and ask for a
+ * reschedule event.
+ *
+ * When we get rescheduled we reprogram the hrtick_timer outside of the
+ * rq->lock.
+ */
+static inline void resched_hrt(struct task_struct *p)
+{
+	__resched_task(p, TIF_HRTICK_RESCHED);
+}
+
+static inline void resched_rq(struct rq *rq)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&rq->lock, flags);
+	resched_task(rq->curr);
+	spin_unlock_irqrestore(&rq->lock, flags);
+}
+
+enum {
+	HRTICK_SET,		/* re-programm hrtick_timer */
+	HRTICK_RESET,		/* not a new slice */
+};
+
+/*
+ * Use hrtick when:
+ *  - enabled by features
+ *  - hrtimer is actually high res
+ */
+static inline int hrtick_enabled(struct rq *rq)
+{
+	if (!sched_feat(HRTICK))
+		return 0;
+	return hrtimer_is_hres_active(&rq->hrtick_timer);
+}
+
+/*
+ * Called to set the hrtick timer state.
+ *
+ * called with rq->lock held and irqs disabled
+ */
+static void hrtick_start(struct rq *rq, u64 delay, int reset)
+{
+	assert_spin_locked(&rq->lock);
+
+	/*
+	 * preempt at: now + delay
+	 */
+	rq->hrtick_expire =
+		ktime_add_ns(rq->hrtick_timer.base->get_time(), delay);
+	/*
+	 * indicate we need to program the timer
+	 */
+	__set_bit(HRTICK_SET, &rq->hrtick_flags);
+	if (reset)
+		__set_bit(HRTICK_RESET, &rq->hrtick_flags);
+
+	/*
+	 * New slices are called from the schedule path and don't need a
+	 * forced reschedule.
+	 */
+	if (reset)
+		resched_hrt(rq->curr);
+}
+
+static void hrtick_clear(struct rq *rq)
+{
+	if (hrtimer_active(&rq->hrtick_timer))
+		hrtimer_cancel(&rq->hrtick_timer);
+}
+
+/*
+ * Update the timer from the possible pending state.
+ */
+static void hrtick_set(struct rq *rq)
+{
+	ktime_t time;
+	int set, reset;
+	unsigned long flags;
+
+	WARN_ON_ONCE(cpu_of(rq) != smp_processor_id());
+
+	spin_lock_irqsave(&rq->lock, flags);
+	set = __test_and_clear_bit(HRTICK_SET, &rq->hrtick_flags);
+	reset = __test_and_clear_bit(HRTICK_RESET, &rq->hrtick_flags);
+	time = rq->hrtick_expire;
+	clear_thread_flag(TIF_HRTICK_RESCHED);
+	spin_unlock_irqrestore(&rq->lock, flags);
+
+	if (set) {
+		hrtimer_start(&rq->hrtick_timer, time, HRTIMER_MODE_ABS);
+		if (reset && !hrtimer_active(&rq->hrtick_timer))
+			resched_rq(rq);
+	} else
+		hrtick_clear(rq);
+}
+
+/*
+ * High-resolution timer tick.
+ * Runs from hardirq context with interrupts disabled.
+ */
+static enum hrtimer_restart hrtick(struct hrtimer *timer)
+{
+	struct rq *rq = container_of(timer, struct rq, hrtick_timer);
+
+	WARN_ON_ONCE(cpu_of(rq) != smp_processor_id());
+
+	spin_lock(&rq->lock);
+	__update_rq_clock(rq);
+	rq->curr->sched_class->task_tick(rq, rq->curr, 1);
+	spin_unlock(&rq->lock);
+
+	return HRTIMER_NORESTART;
+}
+
+static inline void init_rq_hrtick(struct rq *rq)
+{
+	rq->hrtick_flags = 0;
+	hrtimer_init(&rq->hrtick_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	rq->hrtick_timer.function = hrtick;
+	rq->hrtick_timer.cb_mode = HRTIMER_CB_IRQSAFE_NO_SOFTIRQ;
+}
+
+void hrtick_resched(void)
+{
+	struct rq *rq;
+	unsigned long flags;
+
+	if (!test_thread_flag(TIF_HRTICK_RESCHED))
+		return;
+
+	local_irq_save(flags);
+	rq = cpu_rq(smp_processor_id());
+	hrtick_set(rq);
+	local_irq_restore(flags);
+}
+#else
+static inline void hrtick_clear(struct rq *rq)
+{
+}
+
+static inline void hrtick_set(struct rq *rq)
+{
+}
+
+static inline void init_rq_hrtick(struct rq *rq)
+{
+}
+
+void hrtick_resched(void)
+{
+}
+#endif
+
 /*
  * resched_task - mark a task 'to be rescheduled now'.
  *
@@ -809,16 +987,16 @@ EXPORT_SYMBOL_GPL(sched_clock_idle_wakeup_event);
 #define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
 #endif
 
-static void resched_task(struct task_struct *p)
+static void __resched_task(struct task_struct *p, int tif_bit)
 {
 	int cpu;
 
 	assert_spin_locked(&task_rq(p)->lock);
 
-	if (unlikely(test_tsk_thread_flag(p, TIF_NEED_RESCHED)))
+	if (unlikely(test_tsk_thread_flag(p, tif_bit)))
 		return;
 
-	set_tsk_thread_flag(p, TIF_NEED_RESCHED);
+	set_tsk_thread_flag(p, tif_bit);
 
 	cpu = task_cpu(p);
 	if (cpu == smp_processor_id())
@@ -841,10 +1019,10 @@ static void resched_cpu(int cpu)
 	spin_unlock_irqrestore(&rq->lock, flags);
 }
 #else
-static inline void resched_task(struct task_struct *p)
+static void __resched_task(struct task_struct *p, int tif_bit)
 {
 	assert_spin_locked(&task_rq(p)->lock);
-	set_tsk_need_resched(p);
+	set_tsk_thread_flag(p, tif_bit);
 }
 #endif
 
@@ -3497,7 +3675,7 @@ void scheduler_tick(void)
 	rq->tick_timestamp = rq->clock;
 	update_cpu_load(rq);
 	if (curr != rq->idle) /* FIXME: needed? */
-		curr->sched_class->task_tick(rq, curr);
+		curr->sched_class->task_tick(rq, curr, 0);
 	spin_unlock(&rq->lock);
 
 #ifdef CONFIG_SMP
@@ -3643,6 +3821,8 @@ need_resched_nonpreemptible:
 
 	schedule_debug(prev);
 
+	hrtick_clear(rq);
+
 	/*
 	 * Do the rq-clock update outside the rq lock:
 	 */
@@ -3680,14 +3860,20 @@ need_resched_nonpreemptible:
 		++*switch_count;
 
 		context_switch(rq, prev, next); /* unlocks the rq */
+		/*
+		 * the context switch might have flipped the stack from under
+		 * us, hence refresh the local variables.
+		 */
+		cpu = smp_processor_id();
+		rq = cpu_rq(cpu);
 	} else
 		spin_unlock_irq(&rq->lock);
 
-	if (unlikely(reacquire_kernel_lock(current) < 0)) {
-		cpu = smp_processor_id();
-		rq = cpu_rq(cpu);
+	hrtick_set(rq);
+
+	if (unlikely(reacquire_kernel_lock(current) < 0))
 		goto need_resched_nonpreemptible;
-	}
+
 	preempt_enable_no_resched();
 	if (unlikely(test_thread_flag(TIF_NEED_RESCHED)))
 		goto need_resched;
@@ -6913,6 +7099,8 @@ void __init sched_init(void)
 		rq->rt.overloaded = 0;
 		rq_attach_root(rq, &def_root_domain);
 #endif
+		init_rq_hrtick(rq);
+
 		atomic_set(&rq->nr_iowait, 0);
 
 		array = &rq->rt.active;
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index dfa18d55561d..3dab1ff83c4f 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -642,13 +642,29 @@ static void put_prev_entity(struct cfs_rq *cfs_rq, struct sched_entity *prev)
 	cfs_rq->curr = NULL;
 }
 
-static void entity_tick(struct cfs_rq *cfs_rq, struct sched_entity *curr)
+static void
+entity_tick(struct cfs_rq *cfs_rq, struct sched_entity *curr, int queued)
 {
 	/*
 	 * Update run-time statistics of the 'current'.
 	 */
 	update_curr(cfs_rq);
 
+#ifdef CONFIG_SCHED_HRTICK
+	/*
+	 * queued ticks are scheduled to match the slice, so don't bother
+	 * validating it and just reschedule.
+	 */
+	if (queued)
+		return resched_task(rq_of(cfs_rq)->curr);
+	/*
+	 * don't let the period tick interfere with the hrtick preemption
+	 */
+	if (!sched_feat(DOUBLE_TICK) &&
+			hrtimer_active(&rq_of(cfs_rq)->hrtick_timer))
+		return;
+#endif
+
 	if (cfs_rq->nr_running > 1 || !sched_feat(WAKEUP_PREEMPT))
 		check_preempt_tick(cfs_rq, curr);
 }
@@ -754,6 +770,43 @@ static inline struct sched_entity *parent_entity(struct sched_entity *se)
 
 #endif	/* CONFIG_FAIR_GROUP_SCHED */
 
+#ifdef CONFIG_SCHED_HRTICK
+static void hrtick_start_fair(struct rq *rq, struct task_struct *p)
+{
+	int requeue = rq->curr == p;
+	struct sched_entity *se = &p->se;
+	struct cfs_rq *cfs_rq = cfs_rq_of(se);
+
+	WARN_ON(task_rq(p) != rq);
+
+	if (hrtick_enabled(rq) && cfs_rq->nr_running > 1) {
+		u64 slice = sched_slice(cfs_rq, se);
+		u64 ran = se->sum_exec_runtime - se->prev_sum_exec_runtime;
+		s64 delta = slice - ran;
+
+		if (delta < 0) {
+			if (rq->curr == p)
+				resched_task(p);
+			return;
+		}
+
+		/*
+		 * Don't schedule slices shorter than 10000ns, that just
+		 * doesn't make sense. Rely on vruntime for fairness.
+		 */
+		if (!requeue)
+			delta = max(10000LL, delta);
+
+		hrtick_start(rq, delta, requeue);
+	}
+}
+#else
+static inline void
+hrtick_start_fair(struct rq *rq, struct task_struct *p)
+{
+}
+#endif
+
 /*
  * The enqueue_task method is called before nr_running is
  * increased. Here we update the fair scheduling stats and
@@ -782,6 +835,8 @@ static void enqueue_task_fair(struct rq *rq, struct task_struct *p, int wakeup)
 	 */
 	if (incload)
 		inc_cpu_load(rq, topse->load.weight);
+
+	hrtick_start_fair(rq, rq->curr);
 }
 
 /*
@@ -814,6 +869,8 @@ static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int sleep)
 	 */
 	if (decload)
 		dec_cpu_load(rq, topse->load.weight);
+
+	hrtick_start_fair(rq, rq->curr);
 }
 
 /*
@@ -1049,6 +1106,7 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p)
 
 static struct task_struct *pick_next_task_fair(struct rq *rq)
 {
+	struct task_struct *p;
 	struct cfs_rq *cfs_rq = &rq->cfs;
 	struct sched_entity *se;
 
@@ -1060,7 +1118,10 @@ static struct task_struct *pick_next_task_fair(struct rq *rq)
 		cfs_rq = group_cfs_rq(se);
 	} while (cfs_rq);
 
-	return task_of(se);
+	p = task_of(se);
+	hrtick_start_fair(rq, p);
+
+	return p;
 }
 
 /*
@@ -1235,14 +1296,14 @@ move_one_task_fair(struct rq *this_rq, int this_cpu, struct rq *busiest,
 /*
  * scheduler tick hitting a task of our scheduling class:
  */
-static void task_tick_fair(struct rq *rq, struct task_struct *curr)
+static void task_tick_fair(struct rq *rq, struct task_struct *curr, int queued)
 {
 	struct cfs_rq *cfs_rq;
 	struct sched_entity *se = &curr->se;
 
 	for_each_sched_entity(se) {
 		cfs_rq = cfs_rq_of(se);
-		entity_tick(cfs_rq, se);
+		entity_tick(cfs_rq, se, queued);
 	}
 }
 
diff --git a/kernel/sched_idletask.c b/kernel/sched_idletask.c
index ef7a2661fa10..2bcafa375633 100644
--- a/kernel/sched_idletask.c
+++ b/kernel/sched_idletask.c
@@ -61,7 +61,7 @@ move_one_task_idle(struct rq *this_rq, int this_cpu, struct rq *busiest,
 }
 #endif
 
-static void task_tick_idle(struct rq *rq, struct task_struct *curr)
+static void task_tick_idle(struct rq *rq, struct task_struct *curr, int queued)
 {
 }
 
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index f350f7b15158..83fbbcb8019e 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -863,7 +863,7 @@ static void watchdog(struct rq *rq, struct task_struct *p)
 	}
 }
 
-static void task_tick_rt(struct rq *rq, struct task_struct *p)
+static void task_tick_rt(struct rq *rq, struct task_struct *p, int queued)
 {
 	update_curr_rt(rq);
 
-- 
cgit v1.2.3-59-g8ed1b


From 9745512ce79de686df354dc70a8d1a74d801892d Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Fri, 25 Jan 2008 21:08:34 +0100
Subject: sched: latencytop support

LatencyTOP kernel infrastructure; it measures latencies in the
scheduler and tracks it system wide and per process.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/stacktrace.c |  27 +++++
 fs/proc/base.c               |  78 ++++++++++++++
 include/linux/latencytop.h   |  44 ++++++++
 include/linux/sched.h        |   5 +
 include/linux/stacktrace.h   |   3 +
 kernel/Makefile              |   1 +
 kernel/fork.c                |   1 +
 kernel/latencytop.c          | 239 +++++++++++++++++++++++++++++++++++++++++++
 kernel/sched_fair.c          |   8 +-
 kernel/sysctl.c              |  10 ++
 lib/Kconfig.debug            |  14 +++
 11 files changed, 429 insertions(+), 1 deletion(-)
 create mode 100644 include/linux/latencytop.h
 create mode 100644 kernel/latencytop.c

(limited to 'arch')

diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 6fa6cf036c70..55771fd7e545 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -33,6 +33,19 @@ static void save_stack_address(void *data, unsigned long addr)
 		trace->entries[trace->nr_entries++] = addr;
 }
 
+static void save_stack_address_nosched(void *data, unsigned long addr)
+{
+	struct stack_trace *trace = (struct stack_trace *)data;
+	if (in_sched_functions(addr))
+		return;
+	if (trace->skip > 0) {
+		trace->skip--;
+		return;
+	}
+	if (trace->nr_entries < trace->max_entries)
+		trace->entries[trace->nr_entries++] = addr;
+}
+
 static const struct stacktrace_ops save_stack_ops = {
 	.warning = save_stack_warning,
 	.warning_symbol = save_stack_warning_symbol,
@@ -40,6 +53,13 @@ static const struct stacktrace_ops save_stack_ops = {
 	.address = save_stack_address,
 };
 
+static const struct stacktrace_ops save_stack_ops_nosched = {
+	.warning = save_stack_warning,
+	.warning_symbol = save_stack_warning_symbol,
+	.stack = save_stack_stack,
+	.address = save_stack_address_nosched,
+};
+
 /*
  * Save stack-backtrace addresses into a stack_trace buffer.
  */
@@ -50,3 +70,10 @@ void save_stack_trace(struct stack_trace *trace)
 		trace->entries[trace->nr_entries++] = ULONG_MAX;
 }
 EXPORT_SYMBOL(save_stack_trace);
+
+void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
+{
+	dump_trace(tsk, NULL, NULL, &save_stack_ops_nosched, trace);
+	if (trace->nr_entries < trace->max_entries)
+		trace->entries[trace->nr_entries++] = ULONG_MAX;
+}
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 7411bfb0b7cc..91fa8e6ce8ad 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -310,6 +310,77 @@ static int proc_pid_schedstat(struct task_struct *task, char *buffer)
 }
 #endif
 
+#ifdef CONFIG_LATENCYTOP
+static int lstats_show_proc(struct seq_file *m, void *v)
+{
+	int i;
+	struct task_struct *task = m->private;
+	seq_puts(m, "Latency Top version : v0.1\n");
+
+	for (i = 0; i < 32; i++) {
+		if (task->latency_record[i].backtrace[0]) {
+			int q;
+			seq_printf(m, "%i %li %li ",
+				task->latency_record[i].count,
+				task->latency_record[i].time,
+				task->latency_record[i].max);
+			for (q = 0; q < LT_BACKTRACEDEPTH; q++) {
+				char sym[KSYM_NAME_LEN];
+				char *c;
+				if (!task->latency_record[i].backtrace[q])
+					break;
+				if (task->latency_record[i].backtrace[q] == ULONG_MAX)
+					break;
+				sprint_symbol(sym, task->latency_record[i].backtrace[q]);
+				c = strchr(sym, '+');
+				if (c)
+					*c = 0;
+				seq_printf(m, "%s ", sym);
+			}
+			seq_printf(m, "\n");
+		}
+
+	}
+	return 0;
+}
+
+static int lstats_open(struct inode *inode, struct file *file)
+{
+	int ret;
+	struct seq_file *m;
+	struct task_struct *task = get_proc_task(inode);
+
+	ret = single_open(file, lstats_show_proc, NULL);
+	if (!ret) {
+		m = file->private_data;
+		m->private = task;
+	}
+	return ret;
+}
+
+static ssize_t lstats_write(struct file *file, const char __user *buf,
+			    size_t count, loff_t *offs)
+{
+	struct seq_file *m;
+	struct task_struct *task;
+
+	m = file->private_data;
+	task = m->private;
+	clear_all_latency_tracing(task);
+
+	return count;
+}
+
+static const struct file_operations proc_lstats_operations = {
+	.open		= lstats_open,
+	.read		= seq_read,
+	.write		= lstats_write,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+#endif
+
 /* The badness from the OOM killer */
 unsigned long badness(struct task_struct *p, unsigned long uptime);
 static int proc_oom_score(struct task_struct *task, char *buffer)
@@ -1020,6 +1091,7 @@ static const struct file_operations proc_fault_inject_operations = {
 };
 #endif
 
+
 #ifdef CONFIG_SCHED_DEBUG
 /*
  * Print out various scheduling related per-task fields:
@@ -2230,6 +2302,9 @@ static const struct pid_entry tgid_base_stuff[] = {
 #ifdef CONFIG_SCHEDSTATS
 	INF("schedstat",  S_IRUGO, pid_schedstat),
 #endif
+#ifdef CONFIG_LATENCYTOP
+	REG("latency",  S_IRUGO, lstats),
+#endif
 #ifdef CONFIG_PROC_PID_CPUSET
 	REG("cpuset",     S_IRUGO, cpuset),
 #endif
@@ -2555,6 +2630,9 @@ static const struct pid_entry tid_base_stuff[] = {
 #ifdef CONFIG_SCHEDSTATS
 	INF("schedstat", S_IRUGO, pid_schedstat),
 #endif
+#ifdef CONFIG_LATENCYTOP
+	REG("latency",  S_IRUGO, lstats),
+#endif
 #ifdef CONFIG_PROC_PID_CPUSET
 	REG("cpuset",    S_IRUGO, cpuset),
 #endif
diff --git a/include/linux/latencytop.h b/include/linux/latencytop.h
new file mode 100644
index 000000000000..901c2d6377a8
--- /dev/null
+++ b/include/linux/latencytop.h
@@ -0,0 +1,44 @@
+/*
+ * latencytop.h: Infrastructure for displaying latency
+ *
+ * (C) Copyright 2008 Intel Corporation
+ * Author: Arjan van de Ven <arjan@linux.intel.com>
+ *
+ */
+
+#ifndef _INCLUDE_GUARD_LATENCYTOP_H_
+#define _INCLUDE_GUARD_LATENCYTOP_H_
+
+#ifdef CONFIG_LATENCYTOP
+
+#define LT_SAVECOUNT		32
+#define LT_BACKTRACEDEPTH	12
+
+struct latency_record {
+	unsigned long	backtrace[LT_BACKTRACEDEPTH];
+	unsigned int	count;
+	unsigned long	time;
+	unsigned long	max;
+};
+
+
+struct task_struct;
+
+void account_scheduler_latency(struct task_struct *task, int usecs, int inter);
+
+void clear_all_latency_tracing(struct task_struct *p);
+
+#else
+
+static inline void
+account_scheduler_latency(struct task_struct *task, int usecs, int inter)
+{
+}
+
+static inline void clear_all_latency_tracing(struct task_struct *p)
+{
+}
+
+#endif
+
+#endif
diff --git a/include/linux/sched.h b/include/linux/sched.h
index acadcab89ef9..dfc76e172f3f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -88,6 +88,7 @@ struct sched_param {
 #include <linux/hrtimer.h>
 #include <linux/task_io_accounting.h>
 #include <linux/kobject.h>
+#include <linux/latencytop.h>
 
 #include <asm/processor.h>
 
@@ -1220,6 +1221,10 @@ struct task_struct {
 	int make_it_fail;
 #endif
 	struct prop_local_single dirties;
+#ifdef CONFIG_LATENCYTOP
+	int latency_record_count;
+	struct latency_record latency_record[LT_SAVECOUNT];
+#endif
 };
 
 /*
diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h
index e7fa657d0c49..5da9794b2d78 100644
--- a/include/linux/stacktrace.h
+++ b/include/linux/stacktrace.h
@@ -9,10 +9,13 @@ struct stack_trace {
 };
 
 extern void save_stack_trace(struct stack_trace *trace);
+extern void save_stack_trace_tsk(struct task_struct *tsk,
+				struct stack_trace *trace);
 
 extern void print_stack_trace(struct stack_trace *trace, int spaces);
 #else
 # define save_stack_trace(trace)			do { } while (0)
+# define save_stack_trace_tsk(tsk, trace)		do { } while (0)
 # define print_stack_trace(trace, spaces)		do { } while (0)
 #endif
 
diff --git a/kernel/Makefile b/kernel/Makefile
index 68755cd9a7e4..390d42146267 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -62,6 +62,7 @@ obj-$(CONFIG_SYSCTL) += utsname_sysctl.o
 obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o
 obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o
 obj-$(CONFIG_MARKERS) += marker.o
+obj-$(CONFIG_LATENCYTOP) += latencytop.o
 
 ifneq ($(CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER),y)
 # According to Alan Modra <alan@linuxcare.com.au>, the -fno-omit-frame-pointer is
diff --git a/kernel/fork.c b/kernel/fork.c
index 0c969f4fade0..39d22b3357de 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1205,6 +1205,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 #ifdef TIF_SYSCALL_EMU
 	clear_tsk_thread_flag(p, TIF_SYSCALL_EMU);
 #endif
+	clear_all_latency_tracing(p);
 
 	/* Our parent execution domain becomes current domain
 	   These must match for thread signalling to apply */
diff --git a/kernel/latencytop.c b/kernel/latencytop.c
new file mode 100644
index 000000000000..b4e3c85abe74
--- /dev/null
+++ b/kernel/latencytop.c
@@ -0,0 +1,239 @@
+/*
+ * latencytop.c: Latency display infrastructure
+ *
+ * (C) Copyright 2008 Intel Corporation
+ * Author: Arjan van de Ven <arjan@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#include <linux/latencytop.h>
+#include <linux/kallsyms.h>
+#include <linux/seq_file.h>
+#include <linux/notifier.h>
+#include <linux/spinlock.h>
+#include <linux/proc_fs.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/stacktrace.h>
+
+static DEFINE_SPINLOCK(latency_lock);
+
+#define MAXLR 128
+static struct latency_record latency_record[MAXLR];
+
+int latencytop_enabled;
+
+void clear_all_latency_tracing(struct task_struct *p)
+{
+	unsigned long flags;
+
+	if (!latencytop_enabled)
+		return;
+
+	spin_lock_irqsave(&latency_lock, flags);
+	memset(&p->latency_record, 0, sizeof(p->latency_record));
+	p->latency_record_count = 0;
+	spin_unlock_irqrestore(&latency_lock, flags);
+}
+
+static void clear_global_latency_tracing(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&latency_lock, flags);
+	memset(&latency_record, 0, sizeof(latency_record));
+	spin_unlock_irqrestore(&latency_lock, flags);
+}
+
+static void __sched
+account_global_scheduler_latency(struct task_struct *tsk, struct latency_record *lat)
+{
+	int firstnonnull = MAXLR + 1;
+	int i;
+
+	if (!latencytop_enabled)
+		return;
+
+	/* skip kernel threads for now */
+	if (!tsk->mm)
+		return;
+
+	for (i = 0; i < MAXLR; i++) {
+		int q;
+		int same = 1;
+		/* Nothing stored: */
+		if (!latency_record[i].backtrace[0]) {
+			if (firstnonnull > i)
+				firstnonnull = i;
+			continue;
+		}
+		for (q = 0 ; q < LT_BACKTRACEDEPTH ; q++) {
+			if (latency_record[i].backtrace[q] !=
+				lat->backtrace[q])
+				same = 0;
+			if (same && lat->backtrace[q] == 0)
+				break;
+			if (same && lat->backtrace[q] == ULONG_MAX)
+				break;
+		}
+		if (same) {
+			latency_record[i].count++;
+			latency_record[i].time += lat->time;
+			if (lat->time > latency_record[i].max)
+				latency_record[i].max = lat->time;
+			return;
+		}
+	}
+
+	i = firstnonnull;
+	if (i >= MAXLR - 1)
+		return;
+
+	/* Allocted a new one: */
+	memcpy(&latency_record[i], lat, sizeof(struct latency_record));
+}
+
+static inline void store_stacktrace(struct task_struct *tsk, struct latency_record *lat)
+{
+	struct stack_trace trace;
+
+	memset(&trace, 0, sizeof(trace));
+	trace.max_entries = LT_BACKTRACEDEPTH;
+	trace.entries = &lat->backtrace[0];
+	trace.skip = 0;
+	save_stack_trace_tsk(tsk, &trace);
+}
+
+void __sched
+account_scheduler_latency(struct task_struct *tsk, int usecs, int inter)
+{
+	unsigned long flags;
+	int i, q;
+	struct latency_record lat;
+
+	if (!latencytop_enabled)
+		return;
+
+	/* Long interruptible waits are generally user requested... */
+	if (inter && usecs > 5000)
+		return;
+
+	memset(&lat, 0, sizeof(lat));
+	lat.count = 1;
+	lat.time = usecs;
+	lat.max = usecs;
+	store_stacktrace(tsk, &lat);
+
+	spin_lock_irqsave(&latency_lock, flags);
+
+	account_global_scheduler_latency(tsk, &lat);
+
+	/*
+	 * short term hack; if we're > 32 we stop; future we recycle:
+	 */
+	tsk->latency_record_count++;
+	if (tsk->latency_record_count >= LT_SAVECOUNT)
+		goto out_unlock;
+
+	for (i = 0; i < LT_SAVECOUNT ; i++) {
+		struct latency_record *mylat;
+		int same = 1;
+		mylat = &tsk->latency_record[i];
+		for (q = 0 ; q < LT_BACKTRACEDEPTH ; q++) {
+			if (mylat->backtrace[q] !=
+				lat.backtrace[q])
+				same = 0;
+			if (same && lat.backtrace[q] == 0)
+				break;
+			if (same && lat.backtrace[q] == ULONG_MAX)
+				break;
+		}
+		if (same) {
+			mylat->count++;
+			mylat->time += lat.time;
+			if (lat.time > mylat->max)
+				mylat->max = lat.time;
+			goto out_unlock;
+		}
+	}
+
+	/* Allocated a new one: */
+	i = tsk->latency_record_count;
+	memcpy(&tsk->latency_record[i], &lat, sizeof(struct latency_record));
+
+out_unlock:
+	spin_unlock_irqrestore(&latency_lock, flags);
+}
+
+static int lstats_show(struct seq_file *m, void *v)
+{
+	int i;
+
+	seq_puts(m, "Latency Top version : v0.1\n");
+
+	for (i = 0; i < MAXLR; i++) {
+		if (latency_record[i].backtrace[0]) {
+			int q;
+			seq_printf(m, "%i %li %li ",
+				latency_record[i].count,
+				latency_record[i].time,
+				latency_record[i].max);
+			for (q = 0; q < LT_BACKTRACEDEPTH; q++) {
+				char sym[KSYM_NAME_LEN];
+				char *c;
+				if (!latency_record[i].backtrace[q])
+					break;
+				if (latency_record[i].backtrace[q] == ULONG_MAX)
+					break;
+				sprint_symbol(sym, latency_record[i].backtrace[q]);
+				c = strchr(sym, '+');
+				if (c)
+					*c = 0;
+				seq_printf(m, "%s ", sym);
+			}
+			seq_printf(m, "\n");
+		}
+	}
+	return 0;
+}
+
+static ssize_t
+lstats_write(struct file *file, const char __user *buf, size_t count,
+	     loff_t *offs)
+{
+	clear_global_latency_tracing();
+
+	return count;
+}
+
+static int lstats_open(struct inode *inode, struct file *filp)
+{
+	return single_open(filp, lstats_show, NULL);
+}
+
+static struct file_operations lstats_fops = {
+	.open		= lstats_open,
+	.read		= seq_read,
+	.write		= lstats_write,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int __init init_lstats_procfs(void)
+{
+	struct proc_dir_entry *pe;
+
+	pe = create_proc_entry("latency_stats", 0644, NULL);
+	if (!pe)
+		return -ENOMEM;
+
+	pe->proc_fops = &lstats_fops;
+
+	return 0;
+}
+__initcall(init_lstats_procfs);
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 3dab1ff83c4f..1b3b40ad7c54 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -20,6 +20,8 @@
  *  Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com>
  */
 
+#include <linux/latencytop.h>
+
 /*
  * Targeted preemption latency for CPU-bound tasks:
  * (default: 20ms * (1 + ilog(ncpus)), units: nanoseconds)
@@ -434,6 +436,7 @@ static void enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se)
 #ifdef CONFIG_SCHEDSTATS
 	if (se->sleep_start) {
 		u64 delta = rq_of(cfs_rq)->clock - se->sleep_start;
+		struct task_struct *tsk = task_of(se);
 
 		if ((s64)delta < 0)
 			delta = 0;
@@ -443,9 +446,12 @@ static void enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se)
 
 		se->sleep_start = 0;
 		se->sum_sleep_runtime += delta;
+
+		account_scheduler_latency(tsk, delta >> 10, 1);
 	}
 	if (se->block_start) {
 		u64 delta = rq_of(cfs_rq)->clock - se->block_start;
+		struct task_struct *tsk = task_of(se);
 
 		if ((s64)delta < 0)
 			delta = 0;
@@ -462,11 +468,11 @@ static void enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se)
 		 * time that the task spent sleeping:
 		 */
 		if (unlikely(prof_on == SLEEP_PROFILING)) {
-			struct task_struct *tsk = task_of(se);
 
 			profile_hits(SLEEP_PROFILING, (void *)get_wchan(tsk),
 				     delta >> 20);
 		}
+		account_scheduler_latency(tsk, delta >> 10, 0);
 	}
 #endif
 }
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 3afbd25f43eb..5418ef61e16e 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -81,6 +81,7 @@ extern int compat_log;
 extern int maps_protect;
 extern int sysctl_stat_interval;
 extern int audit_argv_kb;
+extern int latencytop_enabled;
 
 /* Constants used for minimum and  maximum */
 #ifdef CONFIG_DETECT_SOFTLOCKUP
@@ -416,6 +417,15 @@ static struct ctl_table kern_table[] = {
 		.proc_handler	= &proc_dointvec_taint,
 	},
 #endif
+#ifdef CONFIG_LATENCYTOP
+	{
+		.procname	= "latencytop",
+		.data		= &latencytop_enabled,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
 #ifdef CONFIG_SECURITY_CAPABILITIES
 	{
 		.procname	= "cap-bound",
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index a60109307d32..14fb355e3caa 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -517,4 +517,18 @@ config FAULT_INJECTION_STACKTRACE_FILTER
 	help
 	  Provide stacktrace filter for fault-injection capabilities
 
+config LATENCYTOP
+	bool "Latency measuring infrastructure"
+	select FRAME_POINTER if !MIPS
+	select KALLSYMS
+	select KALLSYMS_ALL
+	select STACKTRACE
+	select SCHEDSTATS
+	select SCHED_DEBUG
+	depends on X86 || X86_64
+	help
+	  Enable this option if you want to use the LatencyTOP tool
+	  to find out which userspace is blocking on what kernel operations.
+
+
 source "samples/Kconfig"
-- 
cgit v1.2.3-59-g8ed1b


From 08d07968277cd898c88bf12b7720d89c02c4f139 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Sat, 26 Jan 2008 14:10:56 +0100
Subject: [S390] Standby cpu activation/deactivation.

Add a new interface so that cpus can be put into standby state and
configured state.
Only offline cpus can be put into standby state or configured state.
For that the new percpu sysfs attribute "configure" must be used.
To put a cpu in standby state a "0" must be written to the attribute.
In order to switch it into configured state a "1" must be written to
the attribute.
Only cpus in configured state can be brought online.
In addition this patch introduces a static mapping of physical to
logical cpus. As a result only the sysfs directories of present cpus
will be created. To scan for new cpus the new sysfs attribute "rescan"
must be used.
Writing to /sys/devices/system/cpu/rescan will trigger a rescan of
cpus and will create directories for new cpus.

On IPL only configured cpus will be used. And on reboot/shutdown all
cpus will remain in their current state (configured/standby).

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/early.c      |   3 +-
 arch/s390/kernel/setup.c      |   2 +-
 arch/s390/kernel/smp.c        | 401 ++++++++++++++++++++++++++++++++++--------
 drivers/s390/char/Makefile    |   2 +-
 drivers/s390/char/sclp.h      |   4 +-
 drivers/s390/char/sclp_cmd.c  | 319 +++++++++++++++++++++++++++++++++
 drivers/s390/char/sclp_info.c | 116 ------------
 include/asm-s390/sclp.h       |  21 ++-
 8 files changed, 675 insertions(+), 193 deletions(-)
 create mode 100644 drivers/s390/char/sclp_cmd.c
 delete mode 100644 drivers/s390/char/sclp_info.c

(limited to 'arch')

diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 1b3af7dab816..c7cbb0114147 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -276,8 +276,9 @@ void __init startup_init(void)
 	create_kernel_nss();
 	sort_main_extable();
 	setup_lowcore_early();
-	sclp_readinfo_early();
+	sclp_read_info_early();
 	sclp_facilities_detect();
+	sclp_read_cpu_info_early();
 	memsize = sclp_memory_detect();
 #ifndef CONFIG_64BIT
 	/*
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 577aa7dd660e..d68a4025486e 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -920,7 +920,7 @@ setup_arch(char **cmdline_p)
 
 void __cpuinit print_cpu_info(struct cpuinfo_S390 *cpuinfo)
 {
-   printk("cpu %d "
+   printk(KERN_INFO "cpu %d "
 #ifdef CONFIG_SMP
            "phys_idx=%d "
 #endif
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 264ea906db4c..66fe28930d82 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -42,6 +42,7 @@
 #include <asm/tlbflush.h>
 #include <asm/timer.h>
 #include <asm/lowcore.h>
+#include <asm/sclp.h>
 #include <asm/cpu.h>
 
 /*
@@ -58,6 +59,22 @@ EXPORT_SYMBOL(cpu_possible_map);
 
 static struct task_struct *current_set[NR_CPUS];
 
+static u8 smp_cpu_type;
+static int smp_use_sigp_detection;
+
+enum s390_cpu_state {
+	CPU_STATE_STANDBY,
+	CPU_STATE_CONFIGURED,
+};
+
+#ifdef CONFIG_HOTPLUG_CPU
+static DEFINE_MUTEX(smp_cpu_state_mutex);
+#endif
+static int smp_cpu_state[NR_CPUS];
+
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
+DEFINE_PER_CPU(struct s390_idle_data, s390_idle);
+
 static void smp_ext_bitcall(int, ec_bit_sig);
 
 /*
@@ -355,6 +372,13 @@ void smp_ctl_clear_bit(int cr, int bit)
 }
 EXPORT_SYMBOL(smp_ctl_clear_bit);
 
+/*
+ * In early ipl state a temp. logically cpu number is needed, so the sigp
+ * functions can be used to sense other cpus. Since NR_CPUS is >= 2 on
+ * CONFIG_SMP and the ipl cpu is logical cpu 0, it must be 1.
+ */
+#define CPU_INIT_NO	1
+
 #if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_ZFCPDUMP_MODULE)
 
 /*
@@ -376,8 +400,9 @@ static void __init smp_get_save_area(unsigned int cpu, unsigned int phy_cpu)
 		return;
 	}
 	zfcpdump_save_areas[cpu] = alloc_bootmem(sizeof(union save_area));
-	__cpu_logical_map[1] = (__u16) phy_cpu;
-	while (signal_processor(1, sigp_stop_and_store_status) == sigp_busy)
+	__cpu_logical_map[CPU_INIT_NO] = (__u16) phy_cpu;
+	while (signal_processor(CPU_INIT_NO, sigp_stop_and_store_status) ==
+	       sigp_busy)
 		cpu_relax();
 	memcpy(zfcpdump_save_areas[cpu],
 	       (void *)(unsigned long) store_prefix() + SAVE_AREA_BASE,
@@ -397,32 +422,166 @@ static inline void smp_get_save_area(unsigned int cpu, unsigned int phy_cpu) { }
 
 #endif /* CONFIG_ZFCPDUMP || CONFIG_ZFCPDUMP_MODULE */
 
+static int cpu_stopped(int cpu)
+{
+	__u32 status;
+
+	/* Check for stopped state */
+	if (signal_processor_ps(&status, 0, cpu, sigp_sense) ==
+	    sigp_status_stored) {
+		if (status & 0x40)
+			return 1;
+	}
+	return 0;
+}
+
 /*
  * Lets check how many CPUs we have.
  */
-static unsigned int __init smp_count_cpus(void)
+static void __init smp_count_cpus(unsigned int *configured_cpus,
+				  unsigned int *standby_cpus)
 {
-	unsigned int cpu, num_cpus;
-	__u16 boot_cpu_addr;
+	unsigned int cpu;
+	struct sclp_cpu_info *info;
+	u16 boot_cpu_addr, cpu_addr;
 
-	/*
-	 * cpu 0 is the boot cpu. See smp_prepare_boot_cpu.
-	 */
 	boot_cpu_addr = S390_lowcore.cpu_data.cpu_addr;
 	current_thread_info()->cpu = 0;
-	num_cpus = 1;
-	for (cpu = 0; cpu <= 65535; cpu++) {
-		if ((__u16) cpu == boot_cpu_addr)
+	*configured_cpus = 1;
+	*standby_cpus = 0;
+
+	info = alloc_bootmem_pages(sizeof(*info));
+	if (!info)
+		disabled_wait((unsigned long) __builtin_return_address(0));
+
+	/* Use sigp detection algorithm if sclp doesn't work. */
+	if (sclp_get_cpu_info(info)) {
+		smp_use_sigp_detection = 1;
+		for (cpu = 0; cpu <= 65535; cpu++) {
+			if (cpu == boot_cpu_addr)
+				continue;
+			__cpu_logical_map[CPU_INIT_NO] = cpu;
+			if (cpu_stopped(CPU_INIT_NO))
+				(*configured_cpus)++;
+		}
+		goto out;
+	}
+
+	if (info->has_cpu_type) {
+		for (cpu = 0; cpu < info->combined; cpu++) {
+			if (info->cpu[cpu].address == boot_cpu_addr) {
+				smp_cpu_type = info->cpu[cpu].type;
+				break;
+			}
+		}
+	}
+	/* Count cpus. */
+	for (cpu = 0; cpu < info->combined; cpu++) {
+		if (info->has_cpu_type && info->cpu[cpu].type != smp_cpu_type)
+			continue;
+		cpu_addr = info->cpu[cpu].address;
+		if (cpu_addr == boot_cpu_addr)
 			continue;
-		__cpu_logical_map[1] = (__u16) cpu;
-		if (signal_processor(1, sigp_sense) == sigp_not_operational)
+		__cpu_logical_map[CPU_INIT_NO] = cpu_addr;
+		if (!cpu_stopped(CPU_INIT_NO)) {
+			(*standby_cpus)++;
 			continue;
-		smp_get_save_area(num_cpus, cpu);
-		num_cpus++;
+		}
+		smp_get_save_area(*configured_cpus, cpu_addr);
+		(*configured_cpus)++;
 	}
-	printk("Detected %d CPU's\n", (int) num_cpus);
-	printk("Boot cpu address %2X\n", boot_cpu_addr);
-	return num_cpus;
+out:
+	printk(KERN_INFO "CPUs: %d configured, %d standby\n",
+	       *configured_cpus, *standby_cpus);
+	free_bootmem((unsigned long) info, sizeof(*info));
+}
+
+static int cpu_known(int cpu_id)
+{
+	int cpu;
+
+	for_each_present_cpu(cpu) {
+		if (__cpu_logical_map[cpu] == cpu_id)
+			return 1;
+	}
+	return 0;
+}
+
+static int smp_rescan_cpus_sigp(cpumask_t avail)
+{
+	int cpu_id, logical_cpu;
+
+	logical_cpu = first_cpu(avail);
+	if (logical_cpu == NR_CPUS)
+		return 0;
+	for (cpu_id = 0; cpu_id <= 65535; cpu_id++) {
+		if (cpu_known(cpu_id))
+			continue;
+		__cpu_logical_map[logical_cpu] = cpu_id;
+		if (!cpu_stopped(logical_cpu))
+			continue;
+		cpu_set(logical_cpu, cpu_present_map);
+		smp_cpu_state[logical_cpu] = CPU_STATE_CONFIGURED;
+		logical_cpu = next_cpu(logical_cpu, avail);
+		if (logical_cpu == NR_CPUS)
+			break;
+	}
+	return 0;
+}
+
+static int __init_refok smp_rescan_cpus_sclp(cpumask_t avail)
+{
+	struct sclp_cpu_info *info;
+	int cpu_id, logical_cpu, cpu;
+	int rc;
+
+	logical_cpu = first_cpu(avail);
+	if (logical_cpu == NR_CPUS)
+		return 0;
+	if (slab_is_available())
+		info = kmalloc(sizeof(*info), GFP_KERNEL);
+	else
+		info = alloc_bootmem(sizeof(*info));
+	if (!info)
+		return -ENOMEM;
+	rc = sclp_get_cpu_info(info);
+	if (rc)
+		goto out;
+	for (cpu = 0; cpu < info->combined; cpu++) {
+		if (info->has_cpu_type && info->cpu[cpu].type != smp_cpu_type)
+			continue;
+		cpu_id = info->cpu[cpu].address;
+		if (cpu_known(cpu_id))
+			continue;
+		__cpu_logical_map[logical_cpu] = cpu_id;
+		cpu_set(logical_cpu, cpu_present_map);
+		if (cpu >= info->configured)
+			smp_cpu_state[logical_cpu] = CPU_STATE_STANDBY;
+		else
+			smp_cpu_state[logical_cpu] = CPU_STATE_CONFIGURED;
+		logical_cpu = next_cpu(logical_cpu, avail);
+		if (logical_cpu == NR_CPUS)
+			break;
+	}
+out:
+	if (slab_is_available())
+		kfree(info);
+	else
+		free_bootmem((unsigned long) info, sizeof(*info));
+	return rc;
+}
+
+static int smp_rescan_cpus(void)
+{
+	cpumask_t avail;
+
+	cpus_setall(avail);
+	cpus_and(avail, avail, cpu_possible_map);
+	cpus_andnot(avail, avail, cpu_present_map);
+	if (smp_use_sigp_detection)
+		return smp_rescan_cpus_sigp(avail);
+	else
+		return smp_rescan_cpus_sclp(avail);
 }
 
 /*
@@ -453,8 +612,6 @@ int __cpuinit start_secondary(void *cpuvoid)
 	return 0;
 }
 
-DEFINE_PER_CPU(struct s390_idle_data, s390_idle);
-
 static void __init smp_create_idle(unsigned int cpu)
 {
 	struct task_struct *p;
@@ -470,37 +627,16 @@ static void __init smp_create_idle(unsigned int cpu)
 	spin_lock_init(&(&per_cpu(s390_idle, cpu))->lock);
 }
 
-static int cpu_stopped(int cpu)
-{
-	__u32 status;
-
-	/* Check for stopped state */
-	if (signal_processor_ps(&status, 0, cpu, sigp_sense) ==
-	    sigp_status_stored) {
-		if (status & 0x40)
-			return 1;
-	}
-	return 0;
-}
-
 /* Upping and downing of CPUs */
-
 int __cpu_up(unsigned int cpu)
 {
 	struct task_struct *idle;
 	struct _lowcore *cpu_lowcore;
 	struct stack_frame *sf;
 	sigp_ccode ccode;
-	int curr_cpu;
-
-	for (curr_cpu = 0; curr_cpu <= 65535; curr_cpu++) {
-		__cpu_logical_map[cpu] = (__u16) curr_cpu;
-		if (cpu_stopped(cpu))
-			break;
-	}
 
-	if (!cpu_stopped(cpu))
-		return -ENODEV;
+	if (smp_cpu_state[cpu] != CPU_STATE_CONFIGURED)
+		return -EIO;
 
 	ccode = signal_processor_p((__u32)(unsigned long)(lowcore_ptr[cpu]),
 				   cpu, sigp_set_prefix);
@@ -543,21 +679,18 @@ static unsigned int __initdata possible_cpus;
 
 void __init smp_setup_cpu_possible_map(void)
 {
-	unsigned int phy_cpus, pos_cpus, cpu;
-
-	phy_cpus = smp_count_cpus();
-	pos_cpus = min(phy_cpus + additional_cpus, (unsigned int) NR_CPUS);
+	unsigned int pos_cpus, cpu;
+	unsigned int configured_cpus, standby_cpus;
 
+	smp_count_cpus(&configured_cpus, &standby_cpus);
+	pos_cpus = min(configured_cpus + standby_cpus + additional_cpus,
+		       (unsigned int) NR_CPUS);
 	if (possible_cpus)
 		pos_cpus = min(possible_cpus, (unsigned int) NR_CPUS);
-
 	for (cpu = 0; cpu < pos_cpus; cpu++)
 		cpu_set(cpu, cpu_possible_map);
-
-	phy_cpus = min(phy_cpus, pos_cpus);
-
-	for (cpu = 0; cpu < phy_cpus; cpu++)
-		cpu_set(cpu, cpu_present_map);
+	cpu_present_map = cpumask_of_cpu(0);
+	smp_rescan_cpus();
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
@@ -612,7 +745,7 @@ void __cpu_die(unsigned int cpu)
 	/* Wait until target cpu is down */
 	while (!smp_cpu_not_running(cpu))
 		cpu_relax();
-	printk("Processor %d spun down\n", cpu);
+	printk(KERN_INFO "Processor %d spun down\n", cpu);
 }
 
 void cpu_die(void)
@@ -686,12 +819,12 @@ void __init smp_prepare_boot_cpu(void)
 	cpu_set(0, cpu_online_map);
 	S390_lowcore.percpu_offset = __per_cpu_offset[0];
 	current_set[0] = current;
+	smp_cpu_state[0] = CPU_STATE_CONFIGURED;
 	spin_lock_init(&(&__get_cpu_var(s390_idle))->lock);
 }
 
 void __init smp_cpus_done(unsigned int max_cpus)
 {
-	cpu_present_map = cpu_possible_map;
 }
 
 /*
@@ -705,7 +838,79 @@ int setup_profiling_timer(unsigned int multiplier)
 	return 0;
 }
 
-static DEFINE_PER_CPU(struct cpu, cpu_devices);
+#ifdef CONFIG_HOTPLUG_CPU
+static ssize_t cpu_configure_show(struct sys_device *dev, char *buf)
+{
+	ssize_t count;
+
+	mutex_lock(&smp_cpu_state_mutex);
+	count = sprintf(buf, "%d\n", smp_cpu_state[dev->id]);
+	mutex_unlock(&smp_cpu_state_mutex);
+	return count;
+}
+
+static ssize_t cpu_configure_store(struct sys_device *dev, const char *buf,
+				   size_t count)
+{
+	int cpu = dev->id;
+	int val, rc;
+	char delim;
+
+	if (sscanf(buf, "%d %c", &val, &delim) != 1)
+		return -EINVAL;
+	if (val != 0 && val != 1)
+		return -EINVAL;
+
+	mutex_lock(&smp_cpu_state_mutex);
+	lock_cpu_hotplug();
+	rc = -EBUSY;
+	if (cpu_online(cpu))
+		goto out;
+	rc = 0;
+	switch (val) {
+	case 0:
+		if (smp_cpu_state[cpu] == CPU_STATE_CONFIGURED) {
+			rc = sclp_cpu_deconfigure(__cpu_logical_map[cpu]);
+			if (!rc)
+				smp_cpu_state[cpu] = CPU_STATE_STANDBY;
+		}
+		break;
+	case 1:
+		if (smp_cpu_state[cpu] == CPU_STATE_STANDBY) {
+			rc = sclp_cpu_configure(__cpu_logical_map[cpu]);
+			if (!rc)
+				smp_cpu_state[cpu] = CPU_STATE_CONFIGURED;
+		}
+		break;
+	default:
+		break;
+	}
+out:
+	unlock_cpu_hotplug();
+	mutex_unlock(&smp_cpu_state_mutex);
+	return rc ? rc : count;
+}
+static SYSDEV_ATTR(configure, 0644, cpu_configure_show, cpu_configure_store);
+#endif /* CONFIG_HOTPLUG_CPU */
+
+static ssize_t show_cpu_address(struct sys_device *dev, char *buf)
+{
+	return sprintf(buf, "%d\n", __cpu_logical_map[dev->id]);
+}
+static SYSDEV_ATTR(address, 0444, show_cpu_address, NULL);
+
+
+static struct attribute *cpu_common_attrs[] = {
+#ifdef CONFIG_HOTPLUG_CPU
+	&attr_configure.attr,
+#endif
+	&attr_address.attr,
+	NULL,
+};
+
+static struct attribute_group cpu_common_attr_group = {
+	.attrs = cpu_common_attrs,
+};
 
 static ssize_t show_capability(struct sys_device *dev, char *buf)
 {
@@ -750,15 +955,15 @@ static ssize_t show_idle_time(struct sys_device *dev, char *buf)
 }
 static SYSDEV_ATTR(idle_time_us, 0444, show_idle_time, NULL);
 
-static struct attribute *cpu_attrs[] = {
+static struct attribute *cpu_online_attrs[] = {
 	&attr_capability.attr,
 	&attr_idle_count.attr,
 	&attr_idle_time_us.attr,
 	NULL,
 };
 
-static struct attribute_group cpu_attr_group = {
-	.attrs = cpu_attrs,
+static struct attribute_group cpu_online_attr_group = {
+	.attrs = cpu_online_attrs,
 };
 
 static int __cpuinit smp_cpu_notify(struct notifier_block *self,
@@ -778,12 +983,12 @@ static int __cpuinit smp_cpu_notify(struct notifier_block *self,
 		idle->idle_time = 0;
 		idle->idle_count = 0;
 		spin_unlock_irq(&idle->lock);
-		if (sysfs_create_group(&s->kobj, &cpu_attr_group))
+		if (sysfs_create_group(&s->kobj, &cpu_online_attr_group))
 			return NOTIFY_BAD;
 		break;
 	case CPU_DEAD:
 	case CPU_DEAD_FROZEN:
-		sysfs_remove_group(&s->kobj, &cpu_attr_group);
+		sysfs_remove_group(&s->kobj, &cpu_online_attr_group);
 		break;
 	}
 	return NOTIFY_OK;
@@ -793,6 +998,62 @@ static struct notifier_block __cpuinitdata smp_cpu_nb = {
 	.notifier_call = smp_cpu_notify,
 };
 
+static int smp_add_present_cpu(int cpu)
+{
+	struct cpu *c = &per_cpu(cpu_devices, cpu);
+	struct sys_device *s = &c->sysdev;
+	int rc;
+
+	c->hotpluggable = 1;
+	rc = register_cpu(c, cpu);
+	if (rc)
+		goto out;
+	rc = sysfs_create_group(&s->kobj, &cpu_common_attr_group);
+	if (rc)
+		goto out_cpu;
+	if (!cpu_online(cpu))
+		goto out;
+	rc = sysfs_create_group(&s->kobj, &cpu_online_attr_group);
+	if (!rc)
+		return 0;
+	sysfs_remove_group(&s->kobj, &cpu_common_attr_group);
+out_cpu:
+#ifdef CONFIG_HOTPLUG_CPU
+	unregister_cpu(c);
+#endif
+out:
+	return rc;
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+static ssize_t rescan_store(struct sys_device *dev, const char *buf,
+			    size_t count)
+{
+	cpumask_t newcpus;
+	int cpu;
+	int rc;
+
+	mutex_lock(&smp_cpu_state_mutex);
+	lock_cpu_hotplug();
+	newcpus = cpu_present_map;
+	rc = smp_rescan_cpus();
+	if (rc)
+		goto out;
+	cpus_andnot(newcpus, cpu_present_map, newcpus);
+	for_each_cpu_mask(cpu, newcpus) {
+		rc = smp_add_present_cpu(cpu);
+		if (rc)
+			cpu_clear(cpu, cpu_present_map);
+	}
+	rc = 0;
+out:
+	unlock_cpu_hotplug();
+	mutex_unlock(&smp_cpu_state_mutex);
+	return rc ? rc : count;
+}
+static SYSDEV_ATTR(rescan, 0200, NULL, rescan_store);
+#endif /* CONFIG_HOTPLUG_CPU */
+
 static int __init topology_init(void)
 {
 	int cpu;
@@ -800,16 +1061,14 @@ static int __init topology_init(void)
 
 	register_cpu_notifier(&smp_cpu_nb);
 
-	for_each_possible_cpu(cpu) {
-		struct cpu *c = &per_cpu(cpu_devices, cpu);
-		struct sys_device *s = &c->sysdev;
-
-		c->hotpluggable = 1;
-		register_cpu(c, cpu);
-		if (!cpu_online(cpu))
-			continue;
-		s = &c->sysdev;
-		rc = sysfs_create_group(&s->kobj, &cpu_attr_group);
+#ifdef CONFIG_HOTPLUG_CPU
+	rc = sysfs_create_file(&cpu_sysdev_class.kset.kobj,
+			       &attr_rescan.attr);
+	if (rc)
+		return rc;
+#endif
+	for_each_present_cpu(cpu) {
+		rc = smp_add_present_cpu(cpu);
 		if (rc)
 			return rc;
 	}
diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile
index bee3a3af691d..9317333ec149 100644
--- a/drivers/s390/char/Makefile
+++ b/drivers/s390/char/Makefile
@@ -3,7 +3,7 @@
 #
 
 obj-y += ctrlchar.o keyboard.o defkeymap.o sclp.o sclp_rw.o sclp_quiesce.o \
-	 sclp_info.o sclp_config.o sclp_chp.o sclp_cpi_sys.o
+	 sclp_cmd.o sclp_config.o sclp_chp.o sclp_cpi_sys.o
 
 obj-$(CONFIG_TN3270) += raw3270.o
 obj-$(CONFIG_TN3270_CONSOLE) += con3270.o
diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h
index c7318a125852..aa8186d18aee 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -56,8 +56,6 @@ typedef unsigned int sclp_cmdw_t;
 #define SCLP_CMDW_READ_EVENT_DATA	0x00770005
 #define SCLP_CMDW_WRITE_EVENT_DATA	0x00760005
 #define SCLP_CMDW_WRITE_EVENT_MASK	0x00780005
-#define SCLP_CMDW_READ_SCP_INFO		0x00020001
-#define SCLP_CMDW_READ_SCP_INFO_FORCED	0x00120001
 
 #define GDS_ID_MDSMU		0x1310
 #define GDS_ID_MDSROUTEINFO	0x1311
@@ -83,6 +81,8 @@ extern u64 sclp_facilities;
 
 #define SCLP_HAS_CHP_INFO	(sclp_facilities & 0x8000000000000000ULL)
 #define SCLP_HAS_CHP_RECONFIG	(sclp_facilities & 0x2000000000000000ULL)
+#define SCLP_HAS_CPU_INFO	(sclp_facilities & 0x0800000000000000ULL)
+#define SCLP_HAS_CPU_RECONFIG	(sclp_facilities & 0x0400000000000000ULL)
 
 struct gds_subvector {
 	u8	length;
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
new file mode 100644
index 000000000000..ba004fd43c05
--- /dev/null
+++ b/drivers/s390/char/sclp_cmd.c
@@ -0,0 +1,319 @@
+/*
+ *  drivers/s390/char/sclp_cmd.c
+ *
+ *    Copyright IBM Corp. 2007
+ *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
+ */
+
+#include <linux/completion.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <asm/sclp.h>
+#include "sclp.h"
+
+#define TAG	"sclp_cmd: "
+
+#define SCLP_CMDW_READ_SCP_INFO		0x00020001
+#define SCLP_CMDW_READ_SCP_INFO_FORCED	0x00120001
+
+struct read_info_sccb {
+	struct	sccb_header header;	/* 0-7 */
+	u16	rnmax;			/* 8-9 */
+	u8	rnsize;			/* 10 */
+	u8	_reserved0[24 - 11];	/* 11-15 */
+	u8	loadparm[8];		/* 24-31 */
+	u8	_reserved1[48 - 32];	/* 32-47 */
+	u64	facilities;		/* 48-55 */
+	u8	_reserved2[84 - 56];	/* 56-83 */
+	u8	fac84;			/* 84 */
+	u8	_reserved3[91 - 85];	/* 85-90 */
+	u8	flags;			/* 91 */
+	u8	_reserved4[100 - 92];	/* 92-99 */
+	u32	rnsize2;		/* 100-103 */
+	u64	rnmax2;			/* 104-111 */
+	u8	_reserved5[4096 - 112];	/* 112-4095 */
+} __attribute__((packed, aligned(PAGE_SIZE)));
+
+static struct read_info_sccb __initdata early_read_info_sccb;
+static int __initdata early_read_info_sccb_valid;
+
+u64 sclp_facilities;
+static u8 sclp_fac84;
+
+static int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb)
+{
+	int rc;
+
+	__ctl_set_bit(0, 9);
+	rc = sclp_service_call(cmd, sccb);
+	if (rc)
+		goto out;
+	__load_psw_mask(PSW_BASE_BITS | PSW_MASK_EXT |
+			PSW_MASK_WAIT | PSW_DEFAULT_KEY);
+	local_irq_disable();
+out:
+	/* Contents of the sccb might have changed. */
+	barrier();
+	__ctl_clear_bit(0, 9);
+	return rc;
+}
+
+void __init sclp_read_info_early(void)
+{
+	int rc;
+	int i;
+	struct read_info_sccb *sccb;
+	sclp_cmdw_t commands[] = {SCLP_CMDW_READ_SCP_INFO_FORCED,
+				  SCLP_CMDW_READ_SCP_INFO};
+
+	sccb = &early_read_info_sccb;
+	for (i = 0; i < ARRAY_SIZE(commands); i++) {
+		do {
+			memset(sccb, 0, sizeof(*sccb));
+			sccb->header.length = sizeof(*sccb);
+			sccb->header.control_mask[2] = 0x80;
+			rc = sclp_cmd_sync_early(commands[i], sccb);
+		} while (rc == -EBUSY);
+
+		if (rc)
+			break;
+		if (sccb->header.response_code == 0x10) {
+			early_read_info_sccb_valid = 1;
+			break;
+		}
+		if (sccb->header.response_code != 0x1f0)
+			break;
+	}
+}
+
+void __init sclp_facilities_detect(void)
+{
+	if (!early_read_info_sccb_valid)
+		return;
+	sclp_facilities = early_read_info_sccb.facilities;
+	sclp_fac84 = early_read_info_sccb.fac84;
+}
+
+unsigned long long __init sclp_memory_detect(void)
+{
+	unsigned long long memsize;
+	struct read_info_sccb *sccb;
+
+	if (!early_read_info_sccb_valid)
+		return 0;
+	sccb = &early_read_info_sccb;
+	if (sccb->rnsize)
+		memsize = sccb->rnsize << 20;
+	else
+		memsize = sccb->rnsize2 << 20;
+	if (sccb->rnmax)
+		memsize *= sccb->rnmax;
+	else
+		memsize *= sccb->rnmax2;
+	return memsize;
+}
+
+/*
+ * This function will be called after sclp_memory_detect(), which gets called
+ * early from early.c code. Therefore the sccb should have valid contents.
+ */
+void __init sclp_get_ipl_info(struct sclp_ipl_info *info)
+{
+	struct read_info_sccb *sccb;
+
+	if (!early_read_info_sccb_valid)
+		return;
+	sccb = &early_read_info_sccb;
+	info->is_valid = 1;
+	if (sccb->flags & 0x2)
+		info->has_dump = 1;
+	memcpy(&info->loadparm, &sccb->loadparm, LOADPARM_LEN);
+}
+
+static void sclp_sync_callback(struct sclp_req *req, void *data)
+{
+	struct completion *completion = data;
+
+	complete(completion);
+}
+
+static int do_sync_request(sclp_cmdw_t cmd, void *sccb)
+{
+	struct completion completion;
+	struct sclp_req *request;
+	int rc;
+
+	request = kzalloc(sizeof(*request), GFP_KERNEL);
+	if (!request)
+		return -ENOMEM;
+	request->command = cmd;
+	request->sccb = sccb;
+	request->status = SCLP_REQ_FILLED;
+	request->callback = sclp_sync_callback;
+	request->callback_data = &completion;
+	init_completion(&completion);
+
+	/* Perform sclp request. */
+	rc = sclp_add_request(request);
+	if (rc)
+		goto out;
+	wait_for_completion(&completion);
+
+	/* Check response. */
+	if (request->status != SCLP_REQ_DONE) {
+		printk(KERN_WARNING TAG "sync request failed "
+		       "(cmd=0x%08x, status=0x%02x)\n", cmd, request->status);
+		rc = -EIO;
+	}
+out:
+	kfree(request);
+	return rc;
+}
+
+/*
+ * CPU configuration related functions.
+ */
+
+#define SCLP_CMDW_READ_CPU_INFO		0x00010001
+#define SCLP_CMDW_CONFIGURE_CPU		0x00110001
+#define SCLP_CMDW_DECONFIGURE_CPU	0x00100001
+
+struct read_cpu_info_sccb {
+	struct	sccb_header header;
+	u16	nr_configured;
+	u16	offset_configured;
+	u16	nr_standby;
+	u16	offset_standby;
+	u8	reserved[4096 - 16];
+} __attribute__((packed, aligned(PAGE_SIZE)));
+
+static struct read_cpu_info_sccb __initdata early_read_cpu_info_sccb;
+static struct sclp_cpu_info __initdata sclp_cpu_info;
+
+static void sclp_fill_cpu_info(struct sclp_cpu_info *info,
+			       struct read_cpu_info_sccb *sccb)
+{
+	char *page = (char *) sccb;
+
+	memset(info, 0, sizeof(*info));
+	info->configured = sccb->nr_configured;
+	info->standby = sccb->nr_standby;
+	info->combined = sccb->nr_configured + sccb->nr_standby;
+	info->has_cpu_type = sclp_fac84 & 0x1;
+	memcpy(&info->cpu, page + sccb->offset_configured,
+	       info->combined * sizeof(struct sclp_cpu_entry));
+}
+
+void __init sclp_read_cpu_info_early(void)
+{
+	int rc;
+	struct read_cpu_info_sccb *sccb;
+
+	if (!SCLP_HAS_CPU_INFO)
+		return;
+
+	sccb = &early_read_cpu_info_sccb;
+	do {
+		memset(sccb, 0, sizeof(*sccb));
+		sccb->header.length = sizeof(*sccb);
+		rc = sclp_cmd_sync_early(SCLP_CMDW_READ_CPU_INFO, sccb);
+	} while (rc == -EBUSY);
+
+	if (rc)
+		return;
+	if (sccb->header.response_code != 0x10)
+		return;
+	sclp_fill_cpu_info(&sclp_cpu_info, sccb);
+}
+
+static int __init sclp_get_cpu_info_early(struct sclp_cpu_info *info)
+{
+	if (!SCLP_HAS_CPU_INFO)
+		return -EOPNOTSUPP;
+	*info = sclp_cpu_info;
+	return 0;
+}
+
+static int sclp_get_cpu_info_late(struct sclp_cpu_info *info)
+{
+	int rc;
+	struct read_cpu_info_sccb *sccb;
+
+	if (!SCLP_HAS_CPU_INFO)
+		return -EOPNOTSUPP;
+	sccb = (struct read_cpu_info_sccb *)  __get_free_page(GFP_KERNEL
+							      | GFP_DMA);
+	if (!sccb)
+		return -ENOMEM;
+	memset(sccb, 0, sizeof(*sccb));
+	sccb->header.length = sizeof(*sccb);
+	rc = do_sync_request(SCLP_CMDW_READ_CPU_INFO, sccb);
+	if (rc)
+		goto out;
+	if (sccb->header.response_code != 0x0010) {
+		printk(KERN_WARNING TAG "readcpuinfo failed "
+		       "(response=0x%04x)\n", sccb->header.response_code);
+		rc = -EIO;
+		goto out;
+	}
+	sclp_fill_cpu_info(info, sccb);
+out:
+	free_page((unsigned long) sccb);
+	return rc;
+}
+
+int __init_refok sclp_get_cpu_info(struct sclp_cpu_info *info)
+{
+	if (slab_is_available())
+		return sclp_get_cpu_info_late(info);
+	return sclp_get_cpu_info_early(info);
+}
+
+struct cpu_configure_sccb {
+	struct sccb_header header;
+} __attribute__((packed, aligned(8)));
+
+static int do_cpu_configure(sclp_cmdw_t cmd)
+{
+	struct cpu_configure_sccb *sccb;
+	int rc;
+
+	if (!SCLP_HAS_CPU_RECONFIG)
+		return -EOPNOTSUPP;
+	/*
+	 * This is not going to cross a page boundary since we force
+	 * kmalloc to have a minimum alignment of 8 bytes on s390.
+	 */
+	sccb = kzalloc(sizeof(*sccb), GFP_KERNEL | GFP_DMA);
+	if (!sccb)
+		return -ENOMEM;
+	sccb->header.length = sizeof(*sccb);
+	rc = do_sync_request(cmd, sccb);
+	if (rc)
+		goto out;
+	switch (sccb->header.response_code) {
+	case 0x0020:
+	case 0x0120:
+		break;
+	default:
+		printk(KERN_WARNING TAG "configure cpu failed (cmd=0x%08x, "
+		       "response=0x%04x)\n", cmd, sccb->header.response_code);
+		rc = -EIO;
+		break;
+	}
+out:
+	kfree(sccb);
+	return rc;
+}
+
+int sclp_cpu_configure(u8 cpu)
+{
+	return do_cpu_configure(SCLP_CMDW_CONFIGURE_CPU | cpu << 8);
+}
+
+int sclp_cpu_deconfigure(u8 cpu)
+{
+	return do_cpu_configure(SCLP_CMDW_DECONFIGURE_CPU | cpu << 8);
+}
diff --git a/drivers/s390/char/sclp_info.c b/drivers/s390/char/sclp_info.c
deleted file mode 100644
index a1136e052750..000000000000
--- a/drivers/s390/char/sclp_info.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- *  drivers/s390/char/sclp_info.c
- *
- *    Copyright IBM Corp. 2007
- *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
- */
-
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <asm/sclp.h>
-#include "sclp.h"
-
-struct sclp_readinfo_sccb {
-	struct	sccb_header header;	/* 0-7 */
-	u16	rnmax;			/* 8-9 */
-	u8	rnsize;			/* 10 */
-	u8	_reserved0[24 - 11];	/* 11-23 */
-	u8	loadparm[8];		/* 24-31 */
-	u8	_reserved1[48 - 32];	/* 32-47 */
-	u64	facilities;		/* 48-55 */
-	u8	_reserved2[91 - 56];	/* 56-90 */
-	u8	flags;			/* 91 */
-	u8	_reserved3[100 - 92];	/* 92-99 */
-	u32	rnsize2;		/* 100-103 */
-	u64	rnmax2;			/* 104-111 */
-	u8	_reserved4[4096 - 112];	/* 112-4095 */
-} __attribute__((packed, aligned(4096)));
-
-static struct sclp_readinfo_sccb __initdata early_readinfo_sccb;
-static int __initdata early_readinfo_sccb_valid;
-
-u64 sclp_facilities;
-
-void __init sclp_readinfo_early(void)
-{
-	int ret;
-	int i;
-	struct sclp_readinfo_sccb *sccb;
-	sclp_cmdw_t commands[] = {SCLP_CMDW_READ_SCP_INFO_FORCED,
-				  SCLP_CMDW_READ_SCP_INFO};
-
-	/* Enable service signal subclass mask. */
-	__ctl_set_bit(0, 9);
-	sccb = &early_readinfo_sccb;
-	for (i = 0; i < ARRAY_SIZE(commands); i++) {
-		do {
-			memset(sccb, 0, sizeof(*sccb));
-			sccb->header.length = sizeof(*sccb);
-			sccb->header.control_mask[2] = 0x80;
-			ret = sclp_service_call(commands[i], sccb);
-		} while (ret == -EBUSY);
-
-		if (ret)
-			break;
-		__load_psw_mask(PSW_BASE_BITS | PSW_MASK_EXT |
-				PSW_MASK_WAIT | PSW_DEFAULT_KEY);
-		local_irq_disable();
-		/*
-		 * Contents of the sccb might have changed
-		 * therefore a barrier is needed.
-		 */
-		barrier();
-		if (sccb->header.response_code == 0x10) {
-			early_readinfo_sccb_valid = 1;
-			break;
-		}
-		if (sccb->header.response_code != 0x1f0)
-			break;
-	}
-	/* Disable service signal subclass mask again. */
-	__ctl_clear_bit(0, 9);
-}
-
-void __init sclp_facilities_detect(void)
-{
-	if (!early_readinfo_sccb_valid)
-		return;
-	sclp_facilities = early_readinfo_sccb.facilities;
-}
-
-unsigned long long __init sclp_memory_detect(void)
-{
-	unsigned long long memsize;
-	struct sclp_readinfo_sccb *sccb;
-
-	if (!early_readinfo_sccb_valid)
-		return 0;
-	sccb = &early_readinfo_sccb;
-	if (sccb->rnsize)
-		memsize = sccb->rnsize << 20;
-	else
-		memsize = sccb->rnsize2 << 20;
-	if (sccb->rnmax)
-		memsize *= sccb->rnmax;
-	else
-		memsize *= sccb->rnmax2;
-	return memsize;
-}
-
-/*
- * This function will be called after sclp_memory_detect(), which gets called
- * early from early.c code. Therefore the sccb should have valid contents.
- */
-void __init sclp_get_ipl_info(struct sclp_ipl_info *info)
-{
-	struct sclp_readinfo_sccb *sccb;
-
-	if (!early_readinfo_sccb_valid)
-		return;
-	sccb = &early_readinfo_sccb;
-	info->is_valid = 1;
-	if (sccb->flags & 0x2)
-		info->has_dump = 1;
-	memcpy(&info->loadparm, &sccb->loadparm, LOADPARM_LEN);
-}
diff --git a/include/asm-s390/sclp.h b/include/asm-s390/sclp.h
index cb9faf1ea5cf..b8c7695cd4c8 100644
--- a/include/asm-s390/sclp.h
+++ b/include/asm-s390/sclp.h
@@ -27,7 +27,26 @@ struct sclp_ipl_info {
 	char loadparm[LOADPARM_LEN];
 };
 
-void sclp_readinfo_early(void);
+struct sclp_cpu_entry {
+	u8 address;
+	u8 reserved0[13];
+	u8 type;
+	u8 reserved1;
+} __attribute__((packed));
+
+struct sclp_cpu_info {
+	unsigned int configured;
+	unsigned int standby;
+	unsigned int combined;
+	int has_cpu_type;
+	struct sclp_cpu_entry cpu[255];
+};
+
+int sclp_get_cpu_info(struct sclp_cpu_info *info);
+int sclp_cpu_configure(u8 cpu);
+int sclp_cpu_deconfigure(u8 cpu);
+void sclp_read_info_early(void);
+void sclp_read_cpu_info_early(void);
 void sclp_facilities_detect(void);
 unsigned long long sclp_memory_detect(void);
 int sclp_sdias_blk_count(void);
-- 
cgit v1.2.3-59-g8ed1b


From 6f457e1a149eb39ee58d51913e8023fc27c52806 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Sat, 26 Jan 2008 14:10:58 +0100
Subject: [S390] Fix tlb flushing with idte.

The clear-by-asce operation of the idte instruction gets an asce
(address-space-control-element) as argument to specify which TLBs
need to get flushed. The current code passes a plain pointer to
the start of the pgd without the additional bits which would make
the pointer an asce. The current machines don't mind the difference
but a future model might want to use the designation type control
bits in the asce as a filter for the TLBs to flush.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/head64.S      |  2 +-
 include/asm-s390/mmu_context.h | 27 ++++++++++++---------------
 include/asm-s390/tlbflush.h    | 12 ++++++------
 3 files changed, 19 insertions(+), 22 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index a87b1976d409..79dccd206a6e 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -157,7 +157,7 @@ startup_continue:
 	.long	0xb2b10000		# store facility list
 	tm	0xc8,0x08		# check bit for clearing-by-ASCE
 	bno	0f-.LPG1(%r13)
-	lhi	%r1,2094
+	lhi	%r1,2048
 	lhi	%r2,0
 	.long	0xb98e2001
 	oi	7(%r12),0x80		# set IDTE flag
diff --git a/include/asm-s390/mmu_context.h b/include/asm-s390/mmu_context.h
index 05b842126b99..a77d4ba3c8eb 100644
--- a/include/asm-s390/mmu_context.h
+++ b/include/asm-s390/mmu_context.h
@@ -12,10 +12,15 @@
 #include <asm/pgalloc.h>
 #include <asm-generic/mm_hooks.h>
 
-/*
- * get a new mmu context.. S390 don't know about contexts.
- */
-#define init_new_context(tsk,mm)        0
+static inline int init_new_context(struct task_struct *tsk,
+				   struct mm_struct *mm)
+{
+	mm->context = _ASCE_TABLE_LENGTH | _ASCE_USER_BITS;
+#ifdef CONFIG_64BIT
+	mm->context |= _ASCE_TYPE_REGION3;
+#endif
+	return 0;
+}
 
 #define destroy_context(mm)             do { } while (0)
 
@@ -27,19 +32,11 @@
 
 static inline void update_mm(struct mm_struct *mm, struct task_struct *tsk)
 {
-	pgd_t *pgd = mm->pgd;
-	unsigned long asce_bits;
-
-	/* Calculate asce bits from the first pgd table entry. */
-	asce_bits = _ASCE_TABLE_LENGTH | _ASCE_USER_BITS;
-#ifdef CONFIG_64BIT
-	asce_bits |= _ASCE_TYPE_REGION3;
-#endif
-	S390_lowcore.user_asce = asce_bits | __pa(pgd);
+	S390_lowcore.user_asce = mm->context | __pa(mm->pgd);
 	if (switch_amode) {
 		/* Load primary space page table origin. */
-		pgd_t *shadow_pgd = get_shadow_table(pgd) ? : pgd;
-		S390_lowcore.user_exec_asce = asce_bits | __pa(shadow_pgd);
+		pgd_t *shadow_pgd = get_shadow_table(mm->pgd) ? : mm->pgd;
+		S390_lowcore.user_exec_asce = mm->context | __pa(shadow_pgd);
 		asm volatile(LCTL_OPCODE" 1,1,%0\n"
 			     : : "m" (S390_lowcore.user_exec_asce) );
 	} else
diff --git a/include/asm-s390/tlbflush.h b/include/asm-s390/tlbflush.h
index a69bd2490d52..a5e876539ec6 100644
--- a/include/asm-s390/tlbflush.h
+++ b/include/asm-s390/tlbflush.h
@@ -42,11 +42,11 @@ static inline void __tlb_flush_global(void)
 /*
  * Flush all tlb entries of a page table on all cpus.
  */
-static inline void __tlb_flush_idte(pgd_t *pgd)
+static inline void __tlb_flush_idte(unsigned long asce)
 {
 	asm volatile(
 		"	.insn	rrf,0xb98e0000,0,%0,%1,0"
-		: : "a" (2048), "a" (__pa(pgd) & PAGE_MASK) : "cc" );
+		: : "a" (2048), "a" (asce) : "cc" );
 }
 
 static inline void __tlb_flush_mm(struct mm_struct * mm)
@@ -61,11 +61,11 @@ static inline void __tlb_flush_mm(struct mm_struct * mm)
 	 * only ran on the local cpu.
 	 */
 	if (MACHINE_HAS_IDTE) {
-		pgd_t *shadow_pgd = get_shadow_table(mm->pgd);
+		pgd_t *shadow = get_shadow_table(mm->pgd);
 
-		if (shadow_pgd)
-			__tlb_flush_idte(shadow_pgd);
-		__tlb_flush_idte(mm->pgd);
+		if (shadow)
+			__tlb_flush_idte((unsigned long) shadow | mm->context);
+		__tlb_flush_idte((unsigned long) mm->pgd | mm->context);
 		return;
 	}
 	preempt_disable();
-- 
cgit v1.2.3-59-g8ed1b


From 5fd9c6e214547a32d3da6ee4284c79004d667bc8 Mon Sep 17 00:00:00 2001
From: Christian Borntraeger <borntraeger@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:00 +0100
Subject: [S390] Change vmalloc defintions

Currently the vmalloc area starts at a dynamic address depending on
the memory size. There was also an 8MB security hole after the
physical memory to catch out-of-bounds accesses.
We can simplify the code by putting the vmalloc area explicitely at
the top of the kernel mapping and setting the vmalloc size to a fixed
value of 128MB/128GB for 31bit/64bit systems. Part of the vmalloc
area will be used for the vmem_map. This leaves an area of 96MB/1GB
for normal vmalloc allocations.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/setup.c   |  6 +++---
 arch/s390/mm/vmem.c        | 20 +++++++-------------
 include/asm-s390/pgtable.h | 46 ++++++++++++++++------------------------------
 3 files changed, 26 insertions(+), 46 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index d68a4025486e..d071a81b62da 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -617,7 +617,7 @@ EXPORT_SYMBOL_GPL(real_memory_size);
 static void __init setup_memory_end(void)
 {
 	unsigned long memory_size;
-	unsigned long max_mem, max_phys;
+	unsigned long max_mem;
 	int i;
 
 #if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_ZFCPDUMP_MODULE)
@@ -625,10 +625,10 @@ static void __init setup_memory_end(void)
 		memory_end = ZFCPDUMP_HSA_SIZE;
 #endif
 	memory_size = 0;
-	max_phys = VMALLOC_END_INIT - VMALLOC_MIN_SIZE;
 	memory_end &= PAGE_MASK;
 
-	max_mem = memory_end ? min(max_phys, memory_end) : max_phys;
+	max_mem = memory_end ? min(VMALLOC_START, memory_end) : VMALLOC_START;
+	memory_end = min(max_mem, memory_end);
 
 	for (i = 0; i < MEMORY_CHUNKS; i++) {
 		struct mem_chunk *chunk = &memory_chunk[i];
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index fb9c5a85aa56..ee625c8c3b28 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -15,10 +15,6 @@
 #include <asm/setup.h>
 #include <asm/tlbflush.h>
 
-unsigned long vmalloc_end;
-EXPORT_SYMBOL(vmalloc_end);
-
-static struct page *vmem_map;
 static DEFINE_MUTEX(vmem_mutex);
 
 struct memory_segment {
@@ -188,8 +184,8 @@ static int vmem_add_mem_map(unsigned long start, unsigned long size)
 	pte_t  pte;
 	int ret = -ENOMEM;
 
-	map_start = vmem_map + PFN_DOWN(start);
-	map_end	= vmem_map + PFN_DOWN(start + size);
+	map_start = VMEM_MAP + PFN_DOWN(start);
+	map_end	= VMEM_MAP + PFN_DOWN(start + size);
 
 	start_addr = (unsigned long) map_start & PAGE_MASK;
 	end_addr = PFN_ALIGN((unsigned long) map_end);
@@ -254,7 +250,7 @@ static int insert_memory_segment(struct memory_segment *seg)
 {
 	struct memory_segment *tmp;
 
-	if (PFN_DOWN(seg->start + seg->size) > max_pfn ||
+	if (seg->start + seg->size >= VMALLOC_START ||
 	    seg->start + seg->size < seg->start)
 		return -ERANGE;
 
@@ -357,17 +353,15 @@ out:
 
 /*
  * map whole physical memory to virtual memory (identity mapping)
+ * we reserve enough space in the vmalloc area for vmemmap to hotplug
+ * additional memory segments.
  */
 void __init vmem_map_init(void)
 {
-	unsigned long map_size;
 	int i;
 
-	map_size = ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) * sizeof(struct page);
-	vmalloc_end = PFN_ALIGN(VMALLOC_END_INIT) - PFN_ALIGN(map_size);
-	vmem_map = (struct page *) vmalloc_end;
-	NODE_DATA(0)->node_mem_map = vmem_map;
-
+	BUILD_BUG_ON((unsigned long)VMEM_MAP + VMEM_MAP_SIZE > VMEM_MAP_MAX);
+	NODE_DATA(0)->node_mem_map = VMEM_MAP;
 	for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++)
 		vmem_add_mem(memory_chunk[i].addr, memory_chunk[i].size);
 }
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h
index 1f530f8a6280..79b9eab1a0c7 100644
--- a/include/asm-s390/pgtable.h
+++ b/include/asm-s390/pgtable.h
@@ -104,41 +104,27 @@ extern char empty_zero_page[PAGE_SIZE];
 
 #ifndef __ASSEMBLY__
 /*
- * Just any arbitrary offset to the start of the vmalloc VM area: the
- * current 8MB value just means that there will be a 8MB "hole" after the
- * physical memory until the kernel virtual memory starts.  That means that
- * any out-of-bounds memory accesses will hopefully be caught.
- * The vmalloc() routines leaves a hole of 4kB between each vmalloced
- * area for the same reason. ;)
- * vmalloc area starts at 4GB to prevent syscall table entry exchanging
- * from modules.
- */
-extern unsigned long vmalloc_end;
-
-#ifdef CONFIG_64BIT
-#define VMALLOC_ADDR	(max(0x100000000UL, (unsigned long) high_memory))
-#else
-#define VMALLOC_ADDR	((unsigned long) high_memory)
-#endif
-#define VMALLOC_OFFSET	(8*1024*1024)
-#define VMALLOC_START	((VMALLOC_ADDR + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
-#define VMALLOC_END	vmalloc_end
-
-/*
- * We need some free virtual space to be able to do vmalloc.
- * VMALLOC_MIN_SIZE defines the minimum size of the vmalloc
- * area. On a machine with 2GB memory we make sure that we
- * have at least 128MB free space for vmalloc. On a machine
- * with 4TB we make sure we have at least 128GB.
+ * The vmalloc area will always be on the topmost area of the kernel
+ * mapping. We reserve 96MB (31bit) / 1GB (64bit) for vmalloc,
+ * which should be enough for any sane case.
+ * By putting vmalloc at the top, we maximise the gap between physical
+ * memory and vmalloc to catch misplaced memory accesses. As a side
+ * effect, this also makes sure that 64 bit module code cannot be used
+ * as system call address.
  */
 #ifndef __s390x__
-#define VMALLOC_MIN_SIZE	0x8000000UL
-#define VMALLOC_END_INIT	0x80000000UL
+#define VMALLOC_START	0x78000000UL
+#define VMALLOC_END	0x7e000000UL
+#define VMEM_MAP_MAX	0x80000000UL
 #else /* __s390x__ */
-#define VMALLOC_MIN_SIZE	0x2000000000UL
-#define VMALLOC_END_INIT	0x40000000000UL
+#define VMALLOC_START	0x3e000000000UL
+#define VMALLOC_END	0x3e040000000UL
+#define VMEM_MAP_MAX	0x40000000000UL
 #endif /* __s390x__ */
 
+#define VMEM_MAP	((struct page *) VMALLOC_END)
+#define VMEM_MAP_SIZE	((VMALLOC_START / PAGE_SIZE) * sizeof(struct page))
+
 /*
  * A 31 bit pagetable entry of S390 has following format:
  *  |   PFRA          |    |  OS  |
-- 
cgit v1.2.3-59-g8ed1b


From 5c699714d01ac358c58be9943234081b36b69cdd Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:01 +0100
Subject: [S390] Print kernel version in dump_stack() and show_regs().

Also print PREEMPT and/or SMP if the kernel was configured that way.
Makes s390 look a bit more like other architectures.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/process.c | 18 ++++++++++--------
 arch/s390/kernel/traps.c   | 20 +++++++++++++++++---
 2 files changed, 27 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 29f7884b4ffa..0e7aca039307 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -36,7 +36,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/notifier.h>
-
+#include <linux/utsname.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
@@ -182,13 +182,15 @@ void cpu_idle(void)
 
 void show_regs(struct pt_regs *regs)
 {
-	struct task_struct *tsk = current;
-
-        printk("CPU:    %d    %s\n", task_thread_info(tsk)->cpu, print_tainted());
-        printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
-	       current->comm, task_pid_nr(current), (void *) tsk,
-	       (void *) tsk->thread.ksp);
-
+	print_modules();
+	printk("CPU: %d %s %s %.*s\n",
+	       task_thread_info(current)->cpu, print_tainted(),
+	       init_utsname()->release,
+	       (int)strcspn(init_utsname()->version, " "),
+	       init_utsname()->version);
+	printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
+	       current->comm, current->pid, current,
+	       (void *) current->thread.ksp);
 	show_registers(regs);
 	/* Show stack backtrace if pt_regs is from kernel mode */
 	if (!(regs->psw.mask & PSW_MASK_PSTATE))
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 8ed16a83fba7..52b8342c6bf2 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -31,6 +31,7 @@
 #include <linux/reboot.h>
 #include <linux/kprobes.h>
 #include <linux/bug.h>
+#include <linux/utsname.h>
 #include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
@@ -168,9 +169,16 @@ void show_stack(struct task_struct *task, unsigned long *sp)
  */
 void dump_stack(void)
 {
+	printk("CPU: %d %s %s %.*s\n",
+	       task_thread_info(current)->cpu, print_tainted(),
+	       init_utsname()->release,
+	       (int)strcspn(init_utsname()->version, " "),
+	       init_utsname()->version);
+	printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
+	       current->comm, current->pid, current,
+	       (void *) current->thread.ksp);
 	show_stack(NULL, NULL);
 }
-
 EXPORT_SYMBOL(dump_stack);
 
 static inline int mask_bits(struct pt_regs *regs, unsigned long bits)
@@ -258,8 +266,14 @@ void die(const char * str, struct pt_regs * regs, long err)
 	console_verbose();
 	spin_lock_irq(&die_lock);
 	bust_spinlocks(1);
-	printk("%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter);
-	print_modules();
+	printk("%s: %04lx [#%d] ", str, err & 0xffff, ++die_counter);
+#ifdef CONFIG_PREEMPT
+	printk("PREEMPT ");
+#endif
+#ifdef CONFIG_SMP
+	printk("SMP");
+#endif
+	printk("\n");
 	notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV);
 	show_regs(regs);
 	bust_spinlocks(0);
-- 
cgit v1.2.3-59-g8ed1b


From 9f4b0ba81f158df459fa2cfc98ab1475c090f29c Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:02 +0100
Subject: [S390] Get rid of HOLES_IN_ZONE requirement.

Align everything to MAX_ORDER so we can get rid of the extra checks.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/Kconfig        |  3 ---
 arch/s390/kernel/setup.c | 25 ++++++++++++++++++++++++-
 arch/s390/mm/vmem.c      |  2 +-
 3 files changed, 25 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 1330061020ab..6ef54d27fc00 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -276,9 +276,6 @@ source "kernel/Kconfig.preempt"
 
 source "mm/Kconfig"
 
-config HOLES_IN_ZONE
-	def_bool y
-
 comment "I/O subsystem configuration"
 
 config MACHCHK_WARNING
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index d071a81b62da..3a61bfc2c4fb 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -559,7 +559,9 @@ setup_resources(void)
 	data_resource.start = (unsigned long) &_etext;
 	data_resource.end = (unsigned long) &_edata - 1;
 
-	for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) {
+	for (i = 0; i < MEMORY_CHUNKS; i++) {
+		if (!memory_chunk[i].size)
+			continue;
 		res = alloc_bootmem_low(sizeof(struct resource));
 		res->flags = IORESOURCE_BUSY | IORESOURCE_MEM;
 		switch (memory_chunk[i].type) {
@@ -630,6 +632,27 @@ static void __init setup_memory_end(void)
 	max_mem = memory_end ? min(VMALLOC_START, memory_end) : VMALLOC_START;
 	memory_end = min(max_mem, memory_end);
 
+	/*
+	 * Make sure all chunks are MAX_ORDER aligned so we don't need the
+	 * extra checks that HOLES_IN_ZONE would require.
+	 */
+	for (i = 0; i < MEMORY_CHUNKS; i++) {
+		unsigned long start, end;
+		struct mem_chunk *chunk;
+		unsigned long align;
+
+		chunk = &memory_chunk[i];
+		align = 1UL << (MAX_ORDER + PAGE_SHIFT - 1);
+		start = (chunk->addr + align - 1) & ~(align - 1);
+		end = (chunk->addr + chunk->size) & ~(align - 1);
+		if (start >= end)
+			memset(chunk, 0, sizeof(*chunk));
+		else {
+			chunk->addr = start;
+			chunk->size = end - start;
+		}
+	}
+
 	for (i = 0; i < MEMORY_CHUNKS; i++) {
 		struct mem_chunk *chunk = &memory_chunk[i];
 
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index ee625c8c3b28..1fc99891c4eb 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -376,7 +376,7 @@ static int __init vmem_convert_memory_chunk(void)
 	int i;
 
 	mutex_lock(&vmem_mutex);
-	for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) {
+	for (i = 0; i < MEMORY_CHUNKS; i++) {
 		if (!memory_chunk[i].size)
 			continue;
 		seg = kzalloc(sizeof(*seg), GFP_KERNEL);
-- 
cgit v1.2.3-59-g8ed1b


From 3b4beb31759765efdda9f9431aebfedf828bbfe0 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:03 +0100
Subject: [S390] Remove owner_pc member from raw_spinlock_t.

Used to contain the address of the holder of the lock. But since the
spinlock code is not inlined anymore all locks contain the same address
anyway. And since in addtition nobody complained about that for ages
its obviously unused. So remove it.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/lib/spinlock.c          | 12 ++++--------
 include/asm-s390/spinlock.h       | 19 ++++++-------------
 include/asm-s390/spinlock_types.h |  1 -
 3 files changed, 10 insertions(+), 22 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c
index 8d76403fcf89..59c56c3d72d0 100644
--- a/arch/s390/lib/spinlock.c
+++ b/arch/s390/lib/spinlock.c
@@ -39,7 +39,7 @@ static inline void _raw_yield_cpu(int cpu)
 		_raw_yield();
 }
 
-void _raw_spin_lock_wait(raw_spinlock_t *lp, unsigned int pc)
+void _raw_spin_lock_wait(raw_spinlock_t *lp)
 {
 	int count = spin_retry;
 	unsigned int cpu = ~smp_processor_id();
@@ -53,15 +53,13 @@ void _raw_spin_lock_wait(raw_spinlock_t *lp, unsigned int pc)
 		}
 		if (__raw_spin_is_locked(lp))
 			continue;
-		if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0) {
-			lp->owner_pc = pc;
+		if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0)
 			return;
-		}
 	}
 }
 EXPORT_SYMBOL(_raw_spin_lock_wait);
 
-int _raw_spin_trylock_retry(raw_spinlock_t *lp, unsigned int pc)
+int _raw_spin_trylock_retry(raw_spinlock_t *lp)
 {
 	unsigned int cpu = ~smp_processor_id();
 	int count;
@@ -69,10 +67,8 @@ int _raw_spin_trylock_retry(raw_spinlock_t *lp, unsigned int pc)
 	for (count = spin_retry; count > 0; count--) {
 		if (__raw_spin_is_locked(lp))
 			continue;
-		if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0) {
-			lp->owner_pc = pc;
+		if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0)
 			return 1;
-		}
 	}
 	return 0;
 }
diff --git a/include/asm-s390/spinlock.h b/include/asm-s390/spinlock.h
index 3fd43826fd0b..c1d6e7e304e2 100644
--- a/include/asm-s390/spinlock.h
+++ b/include/asm-s390/spinlock.h
@@ -58,39 +58,32 @@ _raw_compare_and_swap(volatile unsigned int *lock,
 	do { while (__raw_spin_is_locked(lock)) \
 		 _raw_spin_relax(lock); } while (0)
 
-extern void _raw_spin_lock_wait(raw_spinlock_t *, unsigned int pc);
-extern int _raw_spin_trylock_retry(raw_spinlock_t *, unsigned int pc);
+extern void _raw_spin_lock_wait(raw_spinlock_t *);
+extern int _raw_spin_trylock_retry(raw_spinlock_t *);
 extern void _raw_spin_relax(raw_spinlock_t *lock);
 
 static inline void __raw_spin_lock(raw_spinlock_t *lp)
 {
-	unsigned long pc = 1 | (unsigned long) __builtin_return_address(0);
 	int old;
 
 	old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id());
-	if (likely(old == 0)) {
-		lp->owner_pc = pc;
+	if (likely(old == 0))
 		return;
-	}
-	_raw_spin_lock_wait(lp, pc);
+	_raw_spin_lock_wait(lp);
 }
 
 static inline int __raw_spin_trylock(raw_spinlock_t *lp)
 {
-	unsigned long pc = 1 | (unsigned long) __builtin_return_address(0);
 	int old;
 
 	old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id());
-	if (likely(old == 0)) {
-		lp->owner_pc = pc;
+	if (likely(old == 0))
 		return 1;
-	}
-	return _raw_spin_trylock_retry(lp, pc);
+	return _raw_spin_trylock_retry(lp);
 }
 
 static inline void __raw_spin_unlock(raw_spinlock_t *lp)
 {
-	lp->owner_pc = 0;
 	_raw_compare_and_swap(&lp->owner_cpu, lp->owner_cpu, 0);
 }
 		
diff --git a/include/asm-s390/spinlock_types.h b/include/asm-s390/spinlock_types.h
index b7ac13f7aa37..654abc40de04 100644
--- a/include/asm-s390/spinlock_types.h
+++ b/include/asm-s390/spinlock_types.h
@@ -7,7 +7,6 @@
 
 typedef struct {
 	volatile unsigned int owner_cpu;
-	volatile unsigned int owner_pc;
 } __attribute__ ((aligned (4))) raw_spinlock_t;
 
 #define __RAW_SPIN_LOCK_UNLOCKED	{ 0 }
-- 
cgit v1.2.3-59-g8ed1b


From 48483b3290988952a593c6e66ca354c19f1a4350 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:05 +0100
Subject: [S390] Get rid of additional_cpus kernel parameter.

It caused only a lot of confusion. From now on cpu hotplug of up to
NR_CPUS will work by default. If somebody wants to limit that then
the possible_cpus parameter can be used.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 Documentation/cpu-hotplug.txt |   2 +-
 arch/s390/kernel/early.c      |   1 -
 arch/s390/kernel/setup.c      |   1 -
 arch/s390/kernel/smp.c        | 180 ++++++++++++++++++------------------------
 drivers/s390/char/sclp_cmd.c  |  46 +----------
 include/asm-s390/sclp.h       |   1 -
 include/asm-s390/smp.h        |   3 -
 7 files changed, 79 insertions(+), 155 deletions(-)

(limited to 'arch')

diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt
index fb94f5a71b68..ba0aacde94fb 100644
--- a/Documentation/cpu-hotplug.txt
+++ b/Documentation/cpu-hotplug.txt
@@ -50,7 +50,7 @@ additional_cpus=n (*)	Use this to limit hotpluggable cpus. This option sets
   			cpu_possible_map = cpu_present_map + additional_cpus
 
 (*) Option valid only for following architectures
-- x86_64, ia64, s390
+- x86_64, ia64
 
 ia64 and x86_64 use the number of disabled local apics in ACPI tables MADT
 to determine the number of potentially hot-pluggable cpus. The implementation
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index c7cbb0114147..9f7b73b180f0 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -278,7 +278,6 @@ void __init startup_init(void)
 	setup_lowcore_early();
 	sclp_read_info_early();
 	sclp_facilities_detect();
-	sclp_read_cpu_info_early();
 	memsize = sclp_memory_detect();
 #ifndef CONFIG_64BIT
 	/*
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 3a61bfc2c4fb..cbdf3fb05e81 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -922,7 +922,6 @@ setup_arch(char **cmdline_p)
 
         cpu_init();
         __cpu_logical_map[0] = S390_lowcore.cpu_data.cpu_addr;
-	smp_setup_cpu_possible_map();
 
 	/*
 	 * Setup capabilities (ELF_HWCAP & ELF_PLATFORM).
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 66fe28930d82..320e4e97bf52 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -54,7 +54,7 @@ EXPORT_SYMBOL(lowcore_ptr);
 cpumask_t cpu_online_map = CPU_MASK_NONE;
 EXPORT_SYMBOL(cpu_online_map);
 
-cpumask_t cpu_possible_map = CPU_MASK_NONE;
+cpumask_t cpu_possible_map = CPU_MASK_ALL;
 EXPORT_SYMBOL(cpu_possible_map);
 
 static struct task_struct *current_set[NR_CPUS];
@@ -399,7 +399,7 @@ static void __init smp_get_save_area(unsigned int cpu, unsigned int phy_cpu)
 		       "kernel was compiled with NR_CPUS=%i\n", cpu, NR_CPUS);
 		return;
 	}
-	zfcpdump_save_areas[cpu] = alloc_bootmem(sizeof(union save_area));
+	zfcpdump_save_areas[cpu] = kmalloc(sizeof(union save_area), GFP_KERNEL);
 	__cpu_logical_map[CPU_INIT_NO] = (__u16) phy_cpu;
 	while (signal_processor(CPU_INIT_NO, sigp_stop_and_store_status) ==
 	       sigp_busy)
@@ -435,67 +435,6 @@ static int cpu_stopped(int cpu)
 	return 0;
 }
 
-/*
- * Lets check how many CPUs we have.
- */
-static void __init smp_count_cpus(unsigned int *configured_cpus,
-				  unsigned int *standby_cpus)
-{
-	unsigned int cpu;
-	struct sclp_cpu_info *info;
-	u16 boot_cpu_addr, cpu_addr;
-
-	boot_cpu_addr = S390_lowcore.cpu_data.cpu_addr;
-	current_thread_info()->cpu = 0;
-	*configured_cpus = 1;
-	*standby_cpus = 0;
-
-	info = alloc_bootmem_pages(sizeof(*info));
-	if (!info)
-		disabled_wait((unsigned long) __builtin_return_address(0));
-
-	/* Use sigp detection algorithm if sclp doesn't work. */
-	if (sclp_get_cpu_info(info)) {
-		smp_use_sigp_detection = 1;
-		for (cpu = 0; cpu <= 65535; cpu++) {
-			if (cpu == boot_cpu_addr)
-				continue;
-			__cpu_logical_map[CPU_INIT_NO] = cpu;
-			if (cpu_stopped(CPU_INIT_NO))
-				(*configured_cpus)++;
-		}
-		goto out;
-	}
-
-	if (info->has_cpu_type) {
-		for (cpu = 0; cpu < info->combined; cpu++) {
-			if (info->cpu[cpu].address == boot_cpu_addr) {
-				smp_cpu_type = info->cpu[cpu].type;
-				break;
-			}
-		}
-	}
-	/* Count cpus. */
-	for (cpu = 0; cpu < info->combined; cpu++) {
-		if (info->has_cpu_type && info->cpu[cpu].type != smp_cpu_type)
-			continue;
-		cpu_addr = info->cpu[cpu].address;
-		if (cpu_addr == boot_cpu_addr)
-			continue;
-		__cpu_logical_map[CPU_INIT_NO] = cpu_addr;
-		if (!cpu_stopped(CPU_INIT_NO)) {
-			(*standby_cpus)++;
-			continue;
-		}
-		smp_get_save_area(*configured_cpus, cpu_addr);
-		(*configured_cpus)++;
-	}
-out:
-	printk(KERN_INFO "CPUs: %d configured, %d standby\n",
-	       *configured_cpus, *standby_cpus);
-	free_bootmem((unsigned long) info, sizeof(*info));
-}
-
 static int cpu_known(int cpu_id)
 {
 	int cpu;
@@ -529,7 +468,7 @@ static int smp_rescan_cpus_sigp(cpumask_t avail)
 	return 0;
 }
 
-static int __init_refok smp_rescan_cpus_sclp(cpumask_t avail)
+static int smp_rescan_cpus_sclp(cpumask_t avail)
 {
 	struct sclp_cpu_info *info;
 	int cpu_id, logical_cpu, cpu;
@@ -538,10 +477,7 @@ static int __init_refok smp_rescan_cpus_sclp(cpumask_t avail)
 	logical_cpu = first_cpu(avail);
 	if (logical_cpu == NR_CPUS)
 		return 0;
-	if (slab_is_available())
-		info = kmalloc(sizeof(*info), GFP_KERNEL);
-	else
-		info = alloc_bootmem(sizeof(*info));
+	info = kmalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 	rc = sclp_get_cpu_info(info);
@@ -564,10 +500,7 @@ static int __init_refok smp_rescan_cpus_sclp(cpumask_t avail)
 			break;
 	}
 out:
-	if (slab_is_available())
-		kfree(info);
-	else
-		free_bootmem((unsigned long) info, sizeof(*info));
+	kfree(info);
 	return rc;
 }
 
@@ -575,15 +508,71 @@ static int smp_rescan_cpus(void)
 {
 	cpumask_t avail;
 
-	cpus_setall(avail);
-	cpus_and(avail, avail, cpu_possible_map);
-	cpus_andnot(avail, avail, cpu_present_map);
+	cpus_xor(avail, cpu_possible_map, cpu_present_map);
 	if (smp_use_sigp_detection)
 		return smp_rescan_cpus_sigp(avail);
 	else
 		return smp_rescan_cpus_sclp(avail);
 }
 
+static void __init smp_detect_cpus(void)
+{
+	unsigned int cpu, c_cpus, s_cpus;
+	struct sclp_cpu_info *info;
+	u16 boot_cpu_addr, cpu_addr;
+
+	c_cpus = 1;
+	s_cpus = 0;
+	boot_cpu_addr = S390_lowcore.cpu_data.cpu_addr;
+	info = kmalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		panic("smp_detect_cpus failed to allocate memory\n");
+	/* Use sigp detection algorithm if sclp doesn't work. */
+	if (sclp_get_cpu_info(info)) {
+		smp_use_sigp_detection = 1;
+		for (cpu = 0; cpu <= 65535; cpu++) {
+			if (cpu == boot_cpu_addr)
+				continue;
+			__cpu_logical_map[CPU_INIT_NO] = cpu;
+			if (!cpu_stopped(CPU_INIT_NO))
+				continue;
+			smp_get_save_area(c_cpus, cpu);
+			c_cpus++;
+		}
+		goto out;
+	}
+
+	if (info->has_cpu_type) {
+		for (cpu = 0; cpu < info->combined; cpu++) {
+			if (info->cpu[cpu].address == boot_cpu_addr) {
+				smp_cpu_type = info->cpu[cpu].type;
+				break;
+			}
+		}
+	}
+
+	for (cpu = 0; cpu < info->combined; cpu++) {
+		if (info->has_cpu_type && info->cpu[cpu].type != smp_cpu_type)
+			continue;
+		cpu_addr = info->cpu[cpu].address;
+		if (cpu_addr == boot_cpu_addr)
+			continue;
+		__cpu_logical_map[CPU_INIT_NO] = cpu_addr;
+		if (!cpu_stopped(CPU_INIT_NO)) {
+			s_cpus++;
+			continue;
+		}
+		smp_get_save_area(c_cpus, cpu_addr);
+		c_cpus++;
+	}
+out:
+	kfree(info);
+	printk(KERN_INFO "CPUs: %d configured, %d standby\n", c_cpus, s_cpus);
+	lock_cpu_hotplug();
+	smp_rescan_cpus();
+	unlock_cpu_hotplug();
+}
+
 /*
  *	Activate a secondary processor.
  */
@@ -674,41 +663,20 @@ int __cpu_up(unsigned int cpu)
 	return 0;
 }
 
-static unsigned int __initdata additional_cpus;
-static unsigned int __initdata possible_cpus;
-
-void __init smp_setup_cpu_possible_map(void)
-{
-	unsigned int pos_cpus, cpu;
-	unsigned int configured_cpus, standby_cpus;
-
-	smp_count_cpus(&configured_cpus, &standby_cpus);
-	pos_cpus = min(configured_cpus + standby_cpus + additional_cpus,
-		       (unsigned int) NR_CPUS);
-	if (possible_cpus)
-		pos_cpus = min(possible_cpus, (unsigned int) NR_CPUS);
-	for (cpu = 0; cpu < pos_cpus; cpu++)
-		cpu_set(cpu, cpu_possible_map);
-	cpu_present_map = cpumask_of_cpu(0);
-	smp_rescan_cpus();
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-
-static int __init setup_additional_cpus(char *s)
-{
-	additional_cpus = simple_strtoul(s, NULL, 0);
-	return 0;
-}
-early_param("additional_cpus", setup_additional_cpus);
-
 static int __init setup_possible_cpus(char *s)
 {
-	possible_cpus = simple_strtoul(s, NULL, 0);
+	int pcpus, cpu;
+
+	pcpus = simple_strtoul(s, NULL, 0);
+	cpu_possible_map = cpumask_of_cpu(0);
+	for (cpu = 1; cpu < pcpus && cpu < NR_CPUS; cpu++)
+		cpu_set(cpu, cpu_possible_map);
 	return 0;
 }
 early_param("possible_cpus", setup_possible_cpus);
 
+#ifdef CONFIG_HOTPLUG_CPU
+
 int __cpu_disable(void)
 {
 	struct ec_creg_mask_parms cr_parms;
@@ -768,6 +736,8 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 	unsigned int cpu;
 	int i;
 
+	smp_detect_cpus();
+
 	/* request the 0x1201 emergency signal external interrupt */
 	if (register_external_interrupt(0x1201, do_ext_call_interrupt) != 0)
 		panic("Couldn't request external interrupt 0x1201");
@@ -816,6 +786,8 @@ void __init smp_prepare_boot_cpu(void)
 {
 	BUG_ON(smp_processor_id() != 0);
 
+	current_thread_info()->cpu = 0;
+	cpu_set(0, cpu_present_map);
 	cpu_set(0, cpu_online_map);
 	S390_lowcore.percpu_offset = __per_cpu_offset[0];
 	current_set[0] = current;
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index d7e6f4d65b78..b5c23396f8fe 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -191,9 +191,6 @@ struct read_cpu_info_sccb {
 	u8	reserved[4096 - 16];
 } __attribute__((packed, aligned(PAGE_SIZE)));
 
-static struct read_cpu_info_sccb __initdata early_read_cpu_info_sccb;
-static struct sclp_cpu_info __initdata sclp_cpu_info;
-
 static void sclp_fill_cpu_info(struct sclp_cpu_info *info,
 			       struct read_cpu_info_sccb *sccb)
 {
@@ -208,48 +205,16 @@ static void sclp_fill_cpu_info(struct sclp_cpu_info *info,
 	       info->combined * sizeof(struct sclp_cpu_entry));
 }
 
-void __init sclp_read_cpu_info_early(void)
-{
-	int rc;
-	struct read_cpu_info_sccb *sccb;
-
-	if (!SCLP_HAS_CPU_INFO)
-		return;
-
-	sccb = &early_read_cpu_info_sccb;
-	do {
-		memset(sccb, 0, sizeof(*sccb));
-		sccb->header.length = sizeof(*sccb);
-		rc = sclp_cmd_sync_early(SCLP_CMDW_READ_CPU_INFO, sccb);
-	} while (rc == -EBUSY);
-
-	if (rc)
-		return;
-	if (sccb->header.response_code != 0x10)
-		return;
-	sclp_fill_cpu_info(&sclp_cpu_info, sccb);
-}
-
-static int __init sclp_get_cpu_info_early(struct sclp_cpu_info *info)
-{
-	if (!SCLP_HAS_CPU_INFO)
-		return -EOPNOTSUPP;
-	*info = sclp_cpu_info;
-	return 0;
-}
-
-static int sclp_get_cpu_info_late(struct sclp_cpu_info *info)
+int sclp_get_cpu_info(struct sclp_cpu_info *info)
 {
 	int rc;
 	struct read_cpu_info_sccb *sccb;
 
 	if (!SCLP_HAS_CPU_INFO)
 		return -EOPNOTSUPP;
-	sccb = (struct read_cpu_info_sccb *)  __get_free_page(GFP_KERNEL
-							      | GFP_DMA);
+	sccb = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
 	if (!sccb)
 		return -ENOMEM;
-	memset(sccb, 0, sizeof(*sccb));
 	sccb->header.length = sizeof(*sccb);
 	rc = do_sync_request(SCLP_CMDW_READ_CPU_INFO, sccb);
 	if (rc)
@@ -266,13 +231,6 @@ out:
 	return rc;
 }
 
-int __init_refok sclp_get_cpu_info(struct sclp_cpu_info *info)
-{
-	if (slab_is_available())
-		return sclp_get_cpu_info_late(info);
-	return sclp_get_cpu_info_early(info);
-}
-
 struct cpu_configure_sccb {
 	struct sccb_header header;
 } __attribute__((packed, aligned(8)));
diff --git a/include/asm-s390/sclp.h b/include/asm-s390/sclp.h
index b8c7695cd4c8..b5f2843013a3 100644
--- a/include/asm-s390/sclp.h
+++ b/include/asm-s390/sclp.h
@@ -46,7 +46,6 @@ int sclp_get_cpu_info(struct sclp_cpu_info *info);
 int sclp_cpu_configure(u8 cpu);
 int sclp_cpu_deconfigure(u8 cpu);
 void sclp_read_info_early(void);
-void sclp_read_cpu_info_early(void);
 void sclp_facilities_detect(void);
 unsigned long long sclp_memory_detect(void);
 int sclp_sdias_blk_count(void);
diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
index 07708c07701e..218454b91862 100644
--- a/include/asm-s390/smp.h
+++ b/include/asm-s390/smp.h
@@ -35,8 +35,6 @@ extern void machine_restart_smp(char *);
 extern void machine_halt_smp(void);
 extern void machine_power_off_smp(void);
 
-extern void smp_setup_cpu_possible_map(void);
-
 #define NO_PROC_ID		0xFF		/* No processor magic marker */
 
 /*
@@ -103,7 +101,6 @@ static inline void smp_send_stop(void)
 
 #define hard_smp_processor_id()		0
 #define smp_cpu_not_running(cpu)	1
-#define smp_setup_cpu_possible_map()	do { } while (0)
 #endif
 
 extern union save_area *zfcpdump_save_areas[NR_CPUS + 1];
-- 
cgit v1.2.3-59-g8ed1b


From 3f5615e012b4593943bbc2a6c3ce150bb33e1966 Mon Sep 17 00:00:00 2001
From: Jan Glauber <jan.glauber@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:07 +0100
Subject: [S390] crypto: move s390 Kconfig options.

Move s390 crypto Kconfig options to drivers/crypto/Kconfig to have all
hardware crypto devices in one place.

This also makes messing up the kernel source tree easier for some people.

Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/crypto/Kconfig | 60 ---------------------------------------------
 drivers/crypto/Kconfig   | 63 ++++++++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 61 insertions(+), 62 deletions(-)
 delete mode 100644 arch/s390/crypto/Kconfig

(limited to 'arch')

diff --git a/arch/s390/crypto/Kconfig b/arch/s390/crypto/Kconfig
deleted file mode 100644
index d1defbbfcd81..000000000000
--- a/arch/s390/crypto/Kconfig
+++ /dev/null
@@ -1,60 +0,0 @@
-config CRYPTO_SHA1_S390
-	tristate "SHA1 digest algorithm"
-	depends on S390
-	select CRYPTO_ALGAPI
-	help
-	  This is the s390 hardware accelerated implementation of the
-	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
-
-config CRYPTO_SHA256_S390
-	tristate "SHA256 digest algorithm"
-	depends on S390
-	select CRYPTO_ALGAPI
-	help
-	  This is the s390 hardware accelerated implementation of the
-	  SHA256 secure hash standard (DFIPS 180-2).
-
-	  This version of SHA implements a 256 bit hash with 128 bits of
-	  security against collision attacks.
-
-config CRYPTO_DES_S390
-	tristate "DES and Triple DES cipher algorithms"
-	depends on S390
-	select CRYPTO_ALGAPI
-	select CRYPTO_BLKCIPHER
-	help
-	  This us the s390 hardware accelerated implementation of the
-	  DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
-
-config CRYPTO_AES_S390
-	tristate "AES cipher algorithms"
-	depends on S390
-	select CRYPTO_ALGAPI
-	select CRYPTO_BLKCIPHER
-	help
-	  This is the s390 hardware accelerated implementation of the
-	  AES cipher algorithms (FIPS-197). AES uses the Rijndael
-	  algorithm.
-
-	  Rijndael appears to be consistently a very good performer in
-	  both hardware and software across a wide range of computing
-	  environments regardless of its use in feedback or non-feedback
-	  modes. Its key setup time is excellent, and its key agility is
-	  good. Rijndael's very low memory requirements make it very well
-	  suited for restricted-space environments, in which it also
-	  demonstrates excellent performance. Rijndael's operations are
-	  among the easiest to defend against power and timing attacks.
-
-	  On s390 the System z9-109 currently only supports the key size
-	  of 128 bit.
-
-config S390_PRNG
-	tristate "Pseudo random number generator device driver"
-	depends on S390
-	default "m"
-	help
-	  Select this option if you want to use the s390 pseudo random number
-	  generator. The PRNG is part of the cryptographic processor functions
-	  and uses triple-DES to generate secure random numbers like the
-	  ANSI X9.17 standard. The PRNG is usable via the char device
-	  /dev/prandom.
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 8a70a9edabda..6b658d84d521 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -48,8 +48,6 @@ config CRYPTO_DEV_PADLOCK_SHA
 	  If unsure say M. The compiled module will be
 	  called padlock-sha.ko
 
-source "arch/s390/crypto/Kconfig"
-
 config CRYPTO_DEV_GEODE
 	tristate "Support for the Geode LX AES engine"
 	depends on X86_32 && PCI
@@ -83,6 +81,67 @@ config ZCRYPT_MONOLITHIC
 	  that contains all parts of the crypto device driver (ap bus,
 	  request router and all the card drivers).
 
+config CRYPTO_SHA1_S390
+	tristate "SHA1 digest algorithm"
+	depends on S390
+	select CRYPTO_ALGAPI
+	help
+	  This is the s390 hardware accelerated implementation of the
+	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
+
+config CRYPTO_SHA256_S390
+	tristate "SHA256 digest algorithm"
+	depends on S390
+	select CRYPTO_ALGAPI
+	help
+	  This is the s390 hardware accelerated implementation of the
+	  SHA256 secure hash standard (DFIPS 180-2).
+
+	  This version of SHA implements a 256 bit hash with 128 bits of
+	  security against collision attacks.
+
+config CRYPTO_DES_S390
+	tristate "DES and Triple DES cipher algorithms"
+	depends on S390
+	select CRYPTO_ALGAPI
+	select CRYPTO_BLKCIPHER
+	help
+	  This us the s390 hardware accelerated implementation of the
+	  DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
+
+config CRYPTO_AES_S390
+	tristate "AES cipher algorithms"
+	depends on S390
+	select CRYPTO_ALGAPI
+	select CRYPTO_BLKCIPHER
+	help
+	  This is the s390 hardware accelerated implementation of the
+	  AES cipher algorithms (FIPS-197). AES uses the Rijndael
+	  algorithm.
+
+	  Rijndael appears to be consistently a very good performer in
+	  both hardware and software across a wide range of computing
+	  environments regardless of its use in feedback or non-feedback
+	  modes. Its key setup time is excellent, and its key agility is
+	  good. Rijndael's very low memory requirements make it very well
+	  suited for restricted-space environments, in which it also
+	  demonstrates excellent performance. Rijndael's operations are
+	  among the easiest to defend against power and timing attacks.
+
+	  On s390 the System z9-109 currently only supports the key size
+	  of 128 bit.
+
+config S390_PRNG
+	tristate "Pseudo random number generator device driver"
+	depends on S390
+	default "m"
+	help
+	  Select this option if you want to use the s390 pseudo random number
+	  generator. The PRNG is part of the cryptographic processor functions
+	  and uses triple-DES to generate secure random numbers like the
+	  ANSI X9.17 standard. The PRNG is usable via the char device
+	  /dev/prandom.
+
 config CRYPTO_DEV_HIFN_795X
 	tristate "Driver HIFN 795x crypto accelerator chips"
 	select CRYPTO_DES
-- 
cgit v1.2.3-59-g8ed1b


From cfe7381cea542248766808e7de9a9e7bceecce1a Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 26 Jan 2008 14:11:09 +0100
Subject: [S390] arch/s390: Add missing "space"

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/crypto/aes_s390.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index 46c97058ebe1..a3f67f8b5427 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -516,7 +516,7 @@ static int __init aes_init(void)
 	/* z9 109 and z9 BC/EC only support 128 bit key length */
 	if (keylen_flag == AES_KEYLEN_128)
 		printk(KERN_INFO
-		       "aes_s390: hardware acceleration only available for"
+		       "aes_s390: hardware acceleration only available for "
 		       "128 bit keys\n");
 
 	ret = crypto_register_alg(&aes_alg);
-- 
cgit v1.2.3-59-g8ed1b


From 99ca4e582d4a4088969681efff97be44d98421a1 Mon Sep 17 00:00:00 2001
From: Michael Holzheu <holzheu@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:11 +0100
Subject: [S390] kernel: Shutdown Actions Interface

In case of a kernel panic it is currently possible to specify that a dump
should be created, the system should be rebooted or stopped. Virtual sysfs
files under the directory /sys/firmware/ are used for that configuration.
In addition to that, there are kernel parameters 'vmhalt', 'vmpoff'
and 'vmpanic', which can be used to specify z/VM commands, which are
automatically executed in case of halt, power off or a kernel panic.
This patch combines both functionalities and allows to specify the z/VM CP
commands also via sysfs attributes. In addition to that, it enhances the
existing handling of shutdown triggers (e.g. halt or panic) and associated
shutdown actions (e.g. dump or reipl) and makes it more flexible.

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/ipl.c   | 953 ++++++++++++++++++++++++++++++-----------------
 arch/s390/kernel/setup.c | 103 +----
 arch/s390/kernel/smp.c   |  27 --
 include/asm-s390/ipl.h   |   4 +-
 4 files changed, 614 insertions(+), 473 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index b97694fa62ec..d73aff63725f 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -2,7 +2,7 @@
  *  arch/s390/kernel/ipl.c
  *    ipl/reipl/dump support for Linux on s390.
  *
- *    Copyright (C) IBM Corp. 2005,2006
+ *    Copyright IBM Corp. 2005,2007
  *    Author(s): Michael Holzheu <holzheu@de.ibm.com>
  *		 Heiko Carstens <heiko.carstens@de.ibm.com>
  *		 Volker Sameske <sameske@de.ibm.com>
@@ -31,6 +31,43 @@
 #define IPL_FCP_DUMP_STR	"fcp_dump"
 #define IPL_NSS_STR		"nss"
 
+#define DUMP_CCW_STR		"ccw"
+#define DUMP_FCP_STR		"fcp"
+#define DUMP_NONE_STR		"none"
+
+/*
+ * Four shutdown trigger types are supported:
+ * - panic
+ * - halt
+ * - power off
+ * - reipl
+ */
+#define ON_PANIC_STR		"on_panic"
+#define ON_HALT_STR		"on_halt"
+#define ON_POFF_STR		"on_poff"
+#define ON_REIPL_STR		"on_reboot"
+
+struct shutdown_action;
+struct shutdown_trigger {
+	char *name;
+	struct shutdown_action *action;
+};
+
+/*
+ * Five shutdown action types are supported:
+ */
+#define SHUTDOWN_ACTION_IPL_STR		"ipl"
+#define SHUTDOWN_ACTION_REIPL_STR	"reipl"
+#define SHUTDOWN_ACTION_DUMP_STR	"dump"
+#define SHUTDOWN_ACTION_VMCMD_STR	"vmcmd"
+#define SHUTDOWN_ACTION_STOP_STR	"stop"
+
+struct shutdown_action {
+	char *name;
+	void (*fn) (struct shutdown_trigger *trigger);
+	int (*init) (void);
+};
+
 static char *ipl_type_str(enum ipl_type type)
 {
 	switch (type) {
@@ -54,10 +91,6 @@ enum dump_type {
 	DUMP_TYPE_FCP	= 4,
 };
 
-#define DUMP_NONE_STR	 "none"
-#define DUMP_CCW_STR	 "ccw"
-#define DUMP_FCP_STR	 "fcp"
-
 static char *dump_type_str(enum dump_type type)
 {
 	switch (type) {
@@ -99,30 +132,6 @@ enum dump_method {
 	DUMP_METHOD_FCP_DIAG,
 };
 
-enum shutdown_action {
-	SHUTDOWN_REIPL,
-	SHUTDOWN_DUMP,
-	SHUTDOWN_STOP,
-};
-
-#define SHUTDOWN_REIPL_STR "reipl"
-#define SHUTDOWN_DUMP_STR  "dump"
-#define SHUTDOWN_STOP_STR  "stop"
-
-static char *shutdown_action_str(enum shutdown_action action)
-{
-	switch (action) {
-	case SHUTDOWN_REIPL:
-		return SHUTDOWN_REIPL_STR;
-	case SHUTDOWN_DUMP:
-		return SHUTDOWN_DUMP_STR;
-	case SHUTDOWN_STOP:
-		return SHUTDOWN_STOP_STR;
-	default:
-		return NULL;
-	}
-}
-
 static int diag308_set_works = 0;
 
 static int reipl_capabilities = IPL_TYPE_UNKNOWN;
@@ -140,8 +149,6 @@ static enum dump_method dump_method = DUMP_METHOD_NONE;
 static struct ipl_parameter_block *dump_block_fcp;
 static struct ipl_parameter_block *dump_block_ccw;
 
-static enum shutdown_action on_panic_action = SHUTDOWN_STOP;
-
 static struct sclp_ipl_info sclp_ipl_info;
 
 int diag308(unsigned long subcode, void *addr)
@@ -205,8 +212,8 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj,	\
 		struct kobj_attribute *attr,				\
 		const char *buf, size_t len)				\
 {									\
-	if (sscanf(buf, _fmt_in, _value) != 1)				\
-		return -EINVAL;						\
+	strncpy(_value, buf, sizeof(_value) - 1);			\
+	strstrip(_value);						\
 	return len;							\
 }									\
 static struct kobj_attribute sys_##_prefix##_##_name##_attr =		\
@@ -245,33 +252,6 @@ static __init enum ipl_type get_ipl_type(void)
 	return IPL_TYPE_FCP;
 }
 
-void __init setup_ipl_info(void)
-{
-	ipl_info.type = get_ipl_type();
-	switch (ipl_info.type) {
-	case IPL_TYPE_CCW:
-		ipl_info.data.ccw.dev_id.devno = ipl_devno;
-		ipl_info.data.ccw.dev_id.ssid = 0;
-		break;
-	case IPL_TYPE_FCP:
-	case IPL_TYPE_FCP_DUMP:
-		ipl_info.data.fcp.dev_id.devno =
-			IPL_PARMBLOCK_START->ipl_info.fcp.devno;
-		ipl_info.data.fcp.dev_id.ssid = 0;
-		ipl_info.data.fcp.wwpn = IPL_PARMBLOCK_START->ipl_info.fcp.wwpn;
-		ipl_info.data.fcp.lun = IPL_PARMBLOCK_START->ipl_info.fcp.lun;
-		break;
-	case IPL_TYPE_NSS:
-		strncpy(ipl_info.data.nss.name, kernel_nss_name,
-			sizeof(ipl_info.data.nss.name));
-		break;
-	case IPL_TYPE_UNKNOWN:
-	default:
-		/* We have no info to copy */
-		break;
-	}
-}
-
 struct ipl_info ipl_info;
 EXPORT_SYMBOL_GPL(ipl_info);
 
@@ -428,8 +408,74 @@ static struct attribute_group ipl_unknown_attr_group = {
 
 static struct kset *ipl_kset;
 
+static int __init ipl_register_fcp_files(void)
+{
+	int rc;
+
+	rc = sysfs_create_group(&ipl_kset->kobj, &ipl_fcp_attr_group);
+	if (rc)
+		goto out;
+	rc = sysfs_create_bin_file(&ipl_kset->kobj, &ipl_parameter_attr);
+	if (rc)
+		goto out_ipl_parm;
+	rc = sysfs_create_bin_file(&ipl_kset->kobj, &ipl_scp_data_attr);
+	if (!rc)
+		goto out;
+
+	sysfs_remove_bin_file(&ipl_kset->kobj, &ipl_parameter_attr);
+
+out_ipl_parm:
+	sysfs_remove_group(&ipl_kset->kobj, &ipl_fcp_attr_group);
+out:
+	return rc;
+}
+
+static void ipl_run(struct shutdown_trigger *trigger)
+{
+	diag308(DIAG308_IPL, NULL);
+	if (MACHINE_IS_VM)
+		__cpcmd("IPL", NULL, 0, NULL);
+	else if (ipl_info.type == IPL_TYPE_CCW)
+		reipl_ccw_dev(&ipl_info.data.ccw.dev_id);
+}
+
+static int ipl_init(void)
+{
+	int rc;
+
+	ipl_kset = kset_create_and_add("ipl", NULL, firmware_kobj);
+	if (!ipl_kset) {
+		rc = -ENOMEM;
+		goto out;
+	}
+	switch (ipl_info.type) {
+	case IPL_TYPE_CCW:
+		rc = sysfs_create_group(&ipl_kset->kobj, &ipl_ccw_attr_group);
+		break;
+	case IPL_TYPE_FCP:
+	case IPL_TYPE_FCP_DUMP:
+		rc = ipl_register_fcp_files();
+		break;
+	case IPL_TYPE_NSS:
+		rc = sysfs_create_group(&ipl_kset->kobj, &ipl_nss_attr_group);
+		break;
+	default:
+		rc = sysfs_create_group(&ipl_kset->kobj,
+					&ipl_unknown_attr_group);
+		break;
+	}
+out:
+	if (rc)
+		panic("ipl_init failed: rc = %i\n", rc);
+
+	return 0;
+}
+
+static struct shutdown_action ipl_action = {SHUTDOWN_ACTION_IPL_STR, ipl_run,
+					    ipl_init};
+
 /*
- * reipl section
+ * reipl shutdown action: Reboot Linux on shutdown.
  */
 
 /* FCP reipl device attributes */
@@ -600,143 +646,11 @@ static ssize_t reipl_type_store(struct kobject *kobj,
 }
 
 static struct kobj_attribute reipl_type_attr =
-		__ATTR(reipl_type, 0644, reipl_type_show, reipl_type_store);
+	__ATTR(reipl_type, 0644, reipl_type_show, reipl_type_store);
 
 static struct kset *reipl_kset;
 
-/*
- * dump section
- */
-
-/* FCP dump device attributes */
-
-DEFINE_IPL_ATTR_RW(dump_fcp, wwpn, "0x%016llx\n", "%016llx\n",
-		   dump_block_fcp->ipl_info.fcp.wwpn);
-DEFINE_IPL_ATTR_RW(dump_fcp, lun, "0x%016llx\n", "%016llx\n",
-		   dump_block_fcp->ipl_info.fcp.lun);
-DEFINE_IPL_ATTR_RW(dump_fcp, bootprog, "%lld\n", "%lld\n",
-		   dump_block_fcp->ipl_info.fcp.bootprog);
-DEFINE_IPL_ATTR_RW(dump_fcp, br_lba, "%lld\n", "%lld\n",
-		   dump_block_fcp->ipl_info.fcp.br_lba);
-DEFINE_IPL_ATTR_RW(dump_fcp, device, "0.0.%04llx\n", "0.0.%llx\n",
-		   dump_block_fcp->ipl_info.fcp.devno);
-
-static struct attribute *dump_fcp_attrs[] = {
-	&sys_dump_fcp_device_attr.attr,
-	&sys_dump_fcp_wwpn_attr.attr,
-	&sys_dump_fcp_lun_attr.attr,
-	&sys_dump_fcp_bootprog_attr.attr,
-	&sys_dump_fcp_br_lba_attr.attr,
-	NULL,
-};
-
-static struct attribute_group dump_fcp_attr_group = {
-	.name  = IPL_FCP_STR,
-	.attrs = dump_fcp_attrs,
-};
-
-/* CCW dump device attributes */
-
-DEFINE_IPL_ATTR_RW(dump_ccw, device, "0.0.%04llx\n", "0.0.%llx\n",
-		   dump_block_ccw->ipl_info.ccw.devno);
-
-static struct attribute *dump_ccw_attrs[] = {
-	&sys_dump_ccw_device_attr.attr,
-	NULL,
-};
-
-static struct attribute_group dump_ccw_attr_group = {
-	.name  = IPL_CCW_STR,
-	.attrs = dump_ccw_attrs,
-};
-
-/* dump type */
-
-static int dump_set_type(enum dump_type type)
-{
-	if (!(dump_capabilities & type))
-		return -EINVAL;
-	switch(type) {
-	case DUMP_TYPE_CCW:
-		if (MACHINE_IS_VM)
-			dump_method = DUMP_METHOD_CCW_VM;
-		else if (diag308_set_works)
-			dump_method = DUMP_METHOD_CCW_DIAG;
-		else
-			dump_method = DUMP_METHOD_CCW_CIO;
-		break;
-	case DUMP_TYPE_FCP:
-		dump_method = DUMP_METHOD_FCP_DIAG;
-		break;
-	default:
-		dump_method = DUMP_METHOD_NONE;
-	}
-	dump_type = type;
-	return 0;
-}
-
-static ssize_t dump_type_show(struct kobject *kobj,
-			      struct kobj_attribute *attr, char *page)
-{
-	return sprintf(page, "%s\n", dump_type_str(dump_type));
-}
-
-static ssize_t dump_type_store(struct kobject *kobj,
-			       struct kobj_attribute *attr,
-			       const char *buf, size_t len)
-{
-	int rc = -EINVAL;
-
-	if (strncmp(buf, DUMP_NONE_STR, strlen(DUMP_NONE_STR)) == 0)
-		rc = dump_set_type(DUMP_TYPE_NONE);
-	else if (strncmp(buf, DUMP_CCW_STR, strlen(DUMP_CCW_STR)) == 0)
-		rc = dump_set_type(DUMP_TYPE_CCW);
-	else if (strncmp(buf, DUMP_FCP_STR, strlen(DUMP_FCP_STR)) == 0)
-		rc = dump_set_type(DUMP_TYPE_FCP);
-	return (rc != 0) ? rc : len;
-}
-
-static struct kobj_attribute dump_type_attr =
-		__ATTR(dump_type, 0644, dump_type_show, dump_type_store);
-
-static struct kset *dump_kset;
-
-/*
- * Shutdown actions section
- */
-
-static struct kset *shutdown_actions_kset;
-
-/* on panic */
-
-static ssize_t on_panic_show(struct kobject *kobj,
-			     struct kobj_attribute *attr, char *page)
-{
-	return sprintf(page, "%s\n", shutdown_action_str(on_panic_action));
-}
-
-static ssize_t on_panic_store(struct kobject *kobj,
-			      struct kobj_attribute *attr,
-			      const char *buf, size_t len)
-{
-	if (strncmp(buf, SHUTDOWN_REIPL_STR, strlen(SHUTDOWN_REIPL_STR)) == 0)
-		on_panic_action = SHUTDOWN_REIPL;
-	else if (strncmp(buf, SHUTDOWN_DUMP_STR,
-			 strlen(SHUTDOWN_DUMP_STR)) == 0)
-		on_panic_action = SHUTDOWN_DUMP;
-	else if (strncmp(buf, SHUTDOWN_STOP_STR,
-			 strlen(SHUTDOWN_STOP_STR)) == 0)
-		on_panic_action = SHUTDOWN_STOP;
-	else
-		return -EINVAL;
-
-	return len;
-}
-
-static struct kobj_attribute on_panic_attr =
-		__ATTR(on_panic, 0644, on_panic_show, on_panic_store);
-
-void do_reipl(void)
+void reipl_run(struct shutdown_trigger *trigger)
 {
 	struct ccw_dev_id devid;
 	static char buf[100];
@@ -787,119 +701,27 @@ void do_reipl(void)
 	default:
 		break;
 	}
-	signal_processor(smp_processor_id(), sigp_stop_and_store_status);
 }
 
-static void do_dump(void)
+static void __init reipl_probe(void)
 {
-	struct ccw_dev_id devid;
-	static char buf[100];
+	void *buffer;
 
-	switch (dump_method) {
-	case DUMP_METHOD_CCW_CIO:
-		smp_send_stop();
-		devid.devno = dump_block_ccw->ipl_info.ccw.devno;
-		devid.ssid  = 0;
-		reipl_ccw_dev(&devid);
-		break;
-	case DUMP_METHOD_CCW_VM:
-		smp_send_stop();
-		sprintf(buf, "STORE STATUS");
-		__cpcmd(buf, NULL, 0, NULL);
-		sprintf(buf, "IPL %X", dump_block_ccw->ipl_info.ccw.devno);
-		__cpcmd(buf, NULL, 0, NULL);
-		break;
-	case DUMP_METHOD_CCW_DIAG:
-		diag308(DIAG308_SET, dump_block_ccw);
-		diag308(DIAG308_DUMP, NULL);
-		break;
-	case DUMP_METHOD_FCP_DIAG:
-		diag308(DIAG308_SET, dump_block_fcp);
-		diag308(DIAG308_DUMP, NULL);
-		break;
-	case DUMP_METHOD_NONE:
-	default:
+	buffer = (void *) get_zeroed_page(GFP_KERNEL);
+	if (!buffer)
 		return;
-	}
-	printk(KERN_EMERG "Dump failed!\n");
+	if (diag308(DIAG308_STORE, buffer) == DIAG308_RC_OK)
+		diag308_set_works = 1;
+	free_page((unsigned long)buffer);
 }
 
-/* init functions */
-
-static int __init ipl_register_fcp_files(void)
+static int __init reipl_nss_init(void)
 {
 	int rc;
 
-	rc = sysfs_create_group(&ipl_kset->kobj,
-				&ipl_fcp_attr_group);
-	if (rc)
-		goto out;
-	rc = sysfs_create_bin_file(&ipl_kset->kobj,
-				   &ipl_parameter_attr);
-	if (rc)
-		goto out_ipl_parm;
-	rc = sysfs_create_bin_file(&ipl_kset->kobj,
-				   &ipl_scp_data_attr);
-	if (!rc)
-		goto out;
-
-	sysfs_remove_bin_file(&ipl_kset->kobj, &ipl_parameter_attr);
-
-out_ipl_parm:
-	sysfs_remove_group(&ipl_kset->kobj, &ipl_fcp_attr_group);
-out:
-	return rc;
-}
-
-static int __init ipl_init(void)
-{
-	int rc;
-
-	ipl_kset = kset_create_and_add("ipl", NULL, firmware_kobj);
-	if (!ipl_kset)
-		return -ENOMEM;
-	switch (ipl_info.type) {
-	case IPL_TYPE_CCW:
-		rc = sysfs_create_group(&ipl_kset->kobj,
-					&ipl_ccw_attr_group);
-		break;
-	case IPL_TYPE_FCP:
-	case IPL_TYPE_FCP_DUMP:
-		rc = ipl_register_fcp_files();
-		break;
-	case IPL_TYPE_NSS:
-		rc = sysfs_create_group(&ipl_kset->kobj,
-					&ipl_nss_attr_group);
-		break;
-	default:
-		rc = sysfs_create_group(&ipl_kset->kobj,
-					&ipl_unknown_attr_group);
-		break;
-	}
-	if (rc)
-		kset_unregister(ipl_kset);
-	return rc;
-}
-
-static void __init reipl_probe(void)
-{
-	void *buffer;
-
-	buffer = (void *) get_zeroed_page(GFP_KERNEL);
-	if (!buffer)
-		return;
-	if (diag308(DIAG308_STORE, buffer) == DIAG308_RC_OK)
-		diag308_set_works = 1;
-	free_page((unsigned long)buffer);
-}
-
-static int __init reipl_nss_init(void)
-{
-	int rc;
-
-	if (!MACHINE_IS_VM)
-		return 0;
-	rc = sysfs_create_group(&reipl_kset->kobj, &reipl_nss_attr_group);
+	if (!MACHINE_IS_VM)
+		return 0;
+	rc = sysfs_create_group(&reipl_kset->kobj, &reipl_nss_attr_group);
 	if (rc)
 		return rc;
 	strncpy(reipl_nss_name, kernel_nss_name, NSS_NAME_SIZE + 1);
@@ -970,7 +792,7 @@ static int __init reipl_fcp_init(void)
 	return 0;
 }
 
-static int __init reipl_init(void)
+static int reipl_init(void)
 {
 	int rc;
 
@@ -997,6 +819,138 @@ static int __init reipl_init(void)
 	return 0;
 }
 
+static struct shutdown_action reipl_action = {SHUTDOWN_ACTION_REIPL_STR,
+					      reipl_run, reipl_init};
+
+/*
+ * dump shutdown action: Dump Linux on shutdown.
+ */
+
+/* FCP dump device attributes */
+
+DEFINE_IPL_ATTR_RW(dump_fcp, wwpn, "0x%016llx\n", "%016llx\n",
+		   dump_block_fcp->ipl_info.fcp.wwpn);
+DEFINE_IPL_ATTR_RW(dump_fcp, lun, "0x%016llx\n", "%016llx\n",
+		   dump_block_fcp->ipl_info.fcp.lun);
+DEFINE_IPL_ATTR_RW(dump_fcp, bootprog, "%lld\n", "%lld\n",
+		   dump_block_fcp->ipl_info.fcp.bootprog);
+DEFINE_IPL_ATTR_RW(dump_fcp, br_lba, "%lld\n", "%lld\n",
+		   dump_block_fcp->ipl_info.fcp.br_lba);
+DEFINE_IPL_ATTR_RW(dump_fcp, device, "0.0.%04llx\n", "0.0.%llx\n",
+		   dump_block_fcp->ipl_info.fcp.devno);
+
+static struct attribute *dump_fcp_attrs[] = {
+	&sys_dump_fcp_device_attr.attr,
+	&sys_dump_fcp_wwpn_attr.attr,
+	&sys_dump_fcp_lun_attr.attr,
+	&sys_dump_fcp_bootprog_attr.attr,
+	&sys_dump_fcp_br_lba_attr.attr,
+	NULL,
+};
+
+static struct attribute_group dump_fcp_attr_group = {
+	.name  = IPL_FCP_STR,
+	.attrs = dump_fcp_attrs,
+};
+
+/* CCW dump device attributes */
+
+DEFINE_IPL_ATTR_RW(dump_ccw, device, "0.0.%04llx\n", "0.0.%llx\n",
+		   dump_block_ccw->ipl_info.ccw.devno);
+
+static struct attribute *dump_ccw_attrs[] = {
+	&sys_dump_ccw_device_attr.attr,
+	NULL,
+};
+
+static struct attribute_group dump_ccw_attr_group = {
+	.name  = IPL_CCW_STR,
+	.attrs = dump_ccw_attrs,
+};
+
+/* dump type */
+
+static int dump_set_type(enum dump_type type)
+{
+	if (!(dump_capabilities & type))
+		return -EINVAL;
+	switch (type) {
+	case DUMP_TYPE_CCW:
+		if (MACHINE_IS_VM)
+			dump_method = DUMP_METHOD_CCW_VM;
+		else
+			dump_method = DUMP_METHOD_CCW_CIO;
+		break;
+	case DUMP_TYPE_FCP:
+		dump_method = DUMP_METHOD_FCP_DIAG;
+		break;
+	default:
+		dump_method = DUMP_METHOD_NONE;
+	}
+	dump_type = type;
+	return 0;
+}
+
+static ssize_t dump_type_show(struct kobject *kobj,
+			      struct kobj_attribute *attr, char *page)
+{
+	return sprintf(page, "%s\n", dump_type_str(dump_type));
+}
+
+static ssize_t dump_type_store(struct kobject *kobj,
+			       struct kobj_attribute *attr,
+			       const char *buf, size_t len)
+{
+	int rc = -EINVAL;
+
+	if (strncmp(buf, DUMP_NONE_STR, strlen(DUMP_NONE_STR)) == 0)
+		rc = dump_set_type(DUMP_TYPE_NONE);
+	else if (strncmp(buf, DUMP_CCW_STR, strlen(DUMP_CCW_STR)) == 0)
+		rc = dump_set_type(DUMP_TYPE_CCW);
+	else if (strncmp(buf, DUMP_FCP_STR, strlen(DUMP_FCP_STR)) == 0)
+		rc = dump_set_type(DUMP_TYPE_FCP);
+	return (rc != 0) ? rc : len;
+}
+
+static struct kobj_attribute dump_type_attr =
+	__ATTR(dump_type, 0644, dump_type_show, dump_type_store);
+
+static struct kset *dump_kset;
+
+static void dump_run(struct shutdown_trigger *trigger)
+{
+	struct ccw_dev_id devid;
+	static char buf[100];
+
+	switch (dump_method) {
+	case DUMP_METHOD_CCW_CIO:
+		smp_send_stop();
+		devid.devno = dump_block_ccw->ipl_info.ccw.devno;
+		devid.ssid  = 0;
+		reipl_ccw_dev(&devid);
+		break;
+	case DUMP_METHOD_CCW_VM:
+		smp_send_stop();
+		sprintf(buf, "STORE STATUS");
+		__cpcmd(buf, NULL, 0, NULL);
+		sprintf(buf, "IPL %X", dump_block_ccw->ipl_info.ccw.devno);
+		__cpcmd(buf, NULL, 0, NULL);
+		break;
+	case DUMP_METHOD_CCW_DIAG:
+		diag308(DIAG308_SET, dump_block_ccw);
+		diag308(DIAG308_DUMP, NULL);
+		break;
+	case DUMP_METHOD_FCP_DIAG:
+		diag308(DIAG308_SET, dump_block_fcp);
+		diag308(DIAG308_DUMP, NULL);
+		break;
+	case DUMP_METHOD_NONE:
+	default:
+		return;
+	}
+	printk(KERN_EMERG "Dump failed!\n");
+}
+
 static int __init dump_ccw_init(void)
 {
 	int rc;
@@ -1042,31 +996,14 @@ static int __init dump_fcp_init(void)
 	return 0;
 }
 
-#define SHUTDOWN_ON_PANIC_PRIO 0
-
-static int shutdown_on_panic_notify(struct notifier_block *self,
-				    unsigned long event, void *data)
-{
-	if (on_panic_action == SHUTDOWN_DUMP)
-		do_dump();
-	else if (on_panic_action == SHUTDOWN_REIPL)
-		do_reipl();
-	return NOTIFY_OK;
-}
-
-static struct notifier_block shutdown_on_panic_nb = {
-	.notifier_call = shutdown_on_panic_notify,
-	.priority = SHUTDOWN_ON_PANIC_PRIO
-};
-
-static int __init dump_init(void)
+static int dump_init(void)
 {
 	int rc;
 
 	dump_kset = kset_create_and_add("dump", NULL, firmware_kobj);
 	if (!dump_kset)
 		return -ENOMEM;
-	rc = sysfs_create_file(&dump_kset->kobj, &dump_type_attr);
+	rc = sysfs_create_file(&dump_kset->kobj, &dump_type_attr.attr);
 	if (rc) {
 		kset_unregister(dump_kset);
 		return rc;
@@ -1081,47 +1018,376 @@ static int __init dump_init(void)
 	return 0;
 }
 
-static int __init shutdown_actions_init(void)
+static struct shutdown_action dump_action = {SHUTDOWN_ACTION_DUMP_STR,
+					     dump_run, dump_init};
+
+/*
+ * vmcmd shutdown action: Trigger vm command on shutdown.
+ */
+
+static char vmcmd_on_reboot[128];
+static char vmcmd_on_panic[128];
+static char vmcmd_on_halt[128];
+static char vmcmd_on_poff[128];
+
+DEFINE_IPL_ATTR_STR_RW(vmcmd, on_reboot, "%s\n", "%s\n", vmcmd_on_reboot);
+DEFINE_IPL_ATTR_STR_RW(vmcmd, on_panic, "%s\n", "%s\n", vmcmd_on_panic);
+DEFINE_IPL_ATTR_STR_RW(vmcmd, on_halt, "%s\n", "%s\n", vmcmd_on_halt);
+DEFINE_IPL_ATTR_STR_RW(vmcmd, on_poff, "%s\n", "%s\n", vmcmd_on_poff);
+
+static struct attribute *vmcmd_attrs[] = {
+	&sys_vmcmd_on_reboot_attr.attr,
+	&sys_vmcmd_on_panic_attr.attr,
+	&sys_vmcmd_on_halt_attr.attr,
+	&sys_vmcmd_on_poff_attr.attr,
+	NULL,
+};
+
+static struct attribute_group vmcmd_attr_group = {
+	.attrs = vmcmd_attrs,
+};
+
+static struct kset *vmcmd_kset;
+
+static void vmcmd_run(struct shutdown_trigger *trigger)
 {
-	int rc;
+	char *cmd, *next_cmd;
+
+	if (strcmp(trigger->name, ON_REIPL_STR) == 0)
+		cmd = vmcmd_on_reboot;
+	else if (strcmp(trigger->name, ON_PANIC_STR) == 0)
+		cmd = vmcmd_on_panic;
+	else if (strcmp(trigger->name, ON_HALT_STR) == 0)
+		cmd = vmcmd_on_halt;
+	else if (strcmp(trigger->name, ON_POFF_STR) == 0)
+		cmd = vmcmd_on_poff;
+	else
+		return;
+
+	if (strlen(cmd) == 0)
+		return;
+	do {
+		next_cmd = strchr(cmd, '\n');
+		if (next_cmd) {
+			next_cmd[0] = 0;
+			next_cmd += 1;
+		}
+		__cpcmd(cmd, NULL, 0, NULL);
+		cmd = next_cmd;
+	} while (cmd != NULL);
+}
+
+static int vmcmd_init(void)
+{
+	if (!MACHINE_IS_VM)
+		return -ENOTSUPP;
+	vmcmd_kset = kset_create_and_add("vmcmd", NULL, firmware_kobj);
+	if (!vmcmd_kset)
+		return -ENOMEM;
+	return sysfs_create_group(&vmcmd_kset->kobj, &vmcmd_attr_group);
+}
+
+static struct shutdown_action vmcmd_action = {SHUTDOWN_ACTION_VMCMD_STR,
+					      vmcmd_run, vmcmd_init};
+
+/*
+ * stop shutdown action: Stop Linux on shutdown.
+ */
+
+static void stop_run(struct shutdown_trigger *trigger)
+{
+	signal_processor(smp_processor_id(), sigp_stop_and_store_status);
+	for (;;);
+}
+
+static struct shutdown_action stop_action = {SHUTDOWN_ACTION_STOP_STR,
+					     stop_run, NULL};
+
+/* action list */
+
+static struct shutdown_action *shutdown_actions_list[] = {
+	&ipl_action, &reipl_action, &dump_action, &vmcmd_action, &stop_action};
+#define SHUTDOWN_ACTIONS_COUNT (sizeof(shutdown_actions_list) / sizeof(void *))
+
+/*
+ * Trigger section
+ */
+
+static struct kset *shutdown_actions_kset;
+
+static int set_trigger(const char *buf, struct shutdown_trigger *trigger,
+		       size_t len)
+{
+	int i;
+	for (i = 0; i < SHUTDOWN_ACTIONS_COUNT; i++) {
+		if (!shutdown_actions_list[i])
+			continue;
+		if (strncmp(buf, shutdown_actions_list[i]->name,
+			    strlen(shutdown_actions_list[i]->name)) == 0) {
+			trigger->action = shutdown_actions_list[i];
+			return len;
+		}
+	}
+	return -EINVAL;
+}
+
+/* on reipl */
+
+static struct shutdown_trigger on_reboot_trigger = {ON_REIPL_STR,
+						    &reipl_action};
+
+static ssize_t on_reboot_show(struct kobject *kobj,
+			      struct kobj_attribute *attr, char *page)
+{
+	return sprintf(page, "%s\n", on_reboot_trigger.action->name);
+}
+
+static ssize_t on_reboot_store(struct kobject *kobj,
+			       struct kobj_attribute *attr,
+			       const char *buf, size_t len)
+{
+	return set_trigger(buf, &on_reboot_trigger, len);
+}
+
+static struct kobj_attribute on_reboot_attr =
+	__ATTR(on_reboot, 0644, on_reboot_show, on_reboot_store);
+
+static void do_machine_restart(char *__unused)
+{
+	smp_send_stop();
+	on_reboot_trigger.action->fn(&on_reboot_trigger);
+	reipl_run(NULL);
+}
+void (*_machine_restart)(char *command) = do_machine_restart;
+
+/* on panic */
+
+static struct shutdown_trigger on_panic_trigger = {ON_PANIC_STR, &stop_action};
+
+static ssize_t on_panic_show(struct kobject *kobj,
+			     struct kobj_attribute *attr, char *page)
+{
+	return sprintf(page, "%s\n", on_panic_trigger.action->name);
+}
+
+static ssize_t on_panic_store(struct kobject *kobj,
+			      struct kobj_attribute *attr,
+			      const char *buf, size_t len)
+{
+	return set_trigger(buf, &on_panic_trigger, len);
+}
+
+static struct kobj_attribute on_panic_attr =
+	__ATTR(on_panic, 0644, on_panic_show, on_panic_store);
+
+static void do_panic(void)
+{
+	on_panic_trigger.action->fn(&on_panic_trigger);
+	stop_run(&on_panic_trigger);
+}
+
+/* on halt */
+
+static struct shutdown_trigger on_halt_trigger = {ON_HALT_STR, &stop_action};
+
+static ssize_t on_halt_show(struct kobject *kobj,
+			    struct kobj_attribute *attr, char *page)
+{
+	return sprintf(page, "%s\n", on_halt_trigger.action->name);
+}
+
+static ssize_t on_halt_store(struct kobject *kobj,
+			     struct kobj_attribute *attr,
+			     const char *buf, size_t len)
+{
+	return set_trigger(buf, &on_halt_trigger, len);
+}
+
+static struct kobj_attribute on_halt_attr =
+	__ATTR(on_halt, 0644, on_halt_show, on_halt_store);
 
+
+static void do_machine_halt(void)
+{
+	smp_send_stop();
+	on_halt_trigger.action->fn(&on_halt_trigger);
+	stop_run(&on_halt_trigger);
+}
+void (*_machine_halt)(void) = do_machine_halt;
+
+/* on power off */
+
+static struct shutdown_trigger on_poff_trigger = {ON_POFF_STR, &stop_action};
+
+static ssize_t on_poff_show(struct kobject *kobj,
+			    struct kobj_attribute *attr, char *page)
+{
+	return sprintf(page, "%s\n", on_poff_trigger.action->name);
+}
+
+static ssize_t on_poff_store(struct kobject *kobj,
+			     struct kobj_attribute *attr,
+			     const char *buf, size_t len)
+{
+	return set_trigger(buf, &on_poff_trigger, len);
+}
+
+static struct kobj_attribute on_poff_attr =
+	__ATTR(on_poff, 0644, on_poff_show, on_poff_store);
+
+
+static void do_machine_power_off(void)
+{
+	smp_send_stop();
+	on_poff_trigger.action->fn(&on_poff_trigger);
+	stop_run(&on_poff_trigger);
+}
+void (*_machine_power_off)(void) = do_machine_power_off;
+
+static void __init shutdown_triggers_init(void)
+{
 	shutdown_actions_kset = kset_create_and_add("shutdown_actions", NULL,
 						    firmware_kobj);
 	if (!shutdown_actions_kset)
-		return -ENOMEM;
-	rc = sysfs_create_file(&shutdown_actions_kset->kobj, &on_panic_attr);
-	if (rc) {
-		kset_unregister(shutdown_actions_kset);
-		return rc;
+		goto fail;
+	if (sysfs_create_file(&shutdown_actions_kset->kobj,
+			      &on_reboot_attr.attr))
+		goto fail;
+	if (sysfs_create_file(&shutdown_actions_kset->kobj,
+			      &on_panic_attr.attr))
+		goto fail;
+	if (sysfs_create_file(&shutdown_actions_kset->kobj,
+			      &on_halt_attr.attr))
+		goto fail;
+	if (sysfs_create_file(&shutdown_actions_kset->kobj,
+			      &on_poff_attr.attr))
+		goto fail;
+
+	return;
+fail:
+	panic("shutdown_triggers_init failed\n");
+}
+
+static void __init shutdown_actions_init(void)
+{
+	int i;
+
+	for (i = 0; i < SHUTDOWN_ACTIONS_COUNT; i++) {
+		if (!shutdown_actions_list[i]->init)
+			continue;
+		if (shutdown_actions_list[i]->init())
+			shutdown_actions_list[i] = NULL;
 	}
-	atomic_notifier_chain_register(&panic_notifier_list,
-				       &shutdown_on_panic_nb);
-	return 0;
 }
 
 static int __init s390_ipl_init(void)
 {
-	int rc;
-
-	sclp_get_ipl_info(&sclp_ipl_info);
 	reipl_probe();
-	rc = ipl_init();
-	if (rc)
-		return rc;
-	rc = reipl_init();
-	if (rc)
-		return rc;
-	rc = dump_init();
-	if (rc)
-		return rc;
-	rc = shutdown_actions_init();
-	if (rc)
-		return rc;
+	shutdown_actions_init();
+	shutdown_triggers_init();
 	return 0;
 }
 
 __initcall(s390_ipl_init);
 
+static void __init strncpy_skip_quote(char *dst, char *src, int n)
+{
+	int sx, dx;
+
+	dx = 0;
+	for (sx = 0; src[sx] != 0; sx++) {
+		if (src[sx] == '"')
+			continue;
+		dst[dx++] = src[sx];
+		if (dx >= n)
+			break;
+	}
+}
+
+static int __init vmcmd_on_reboot_setup(char *str)
+{
+	if (!MACHINE_IS_VM)
+		return 1;
+	strncpy_skip_quote(vmcmd_on_reboot, str, 127);
+	vmcmd_on_reboot[127] = 0;
+	on_reboot_trigger.action = &vmcmd_action;
+	return 1;
+}
+__setup("vmreboot=", vmcmd_on_reboot_setup);
+
+static int __init vmcmd_on_panic_setup(char *str)
+{
+	if (!MACHINE_IS_VM)
+		return 1;
+	strncpy_skip_quote(vmcmd_on_panic, str, 127);
+	vmcmd_on_panic[127] = 0;
+	on_panic_trigger.action = &vmcmd_action;
+	return 1;
+}
+__setup("vmpanic=", vmcmd_on_panic_setup);
+
+static int __init vmcmd_on_halt_setup(char *str)
+{
+	if (!MACHINE_IS_VM)
+		return 1;
+	strncpy_skip_quote(vmcmd_on_halt, str, 127);
+	vmcmd_on_halt[127] = 0;
+	on_halt_trigger.action = &vmcmd_action;
+	return 1;
+}
+__setup("vmhalt=", vmcmd_on_halt_setup);
+
+static int __init vmcmd_on_poff_setup(char *str)
+{
+	if (!MACHINE_IS_VM)
+		return 1;
+	strncpy_skip_quote(vmcmd_on_poff, str, 127);
+	vmcmd_on_poff[127] = 0;
+	on_poff_trigger.action = &vmcmd_action;
+	return 1;
+}
+__setup("vmpoff=", vmcmd_on_poff_setup);
+
+static int on_panic_notify(struct notifier_block *self,
+			   unsigned long event, void *data)
+{
+	do_panic();
+	return NOTIFY_OK;
+}
+
+static struct notifier_block on_panic_nb = {
+	.notifier_call = on_panic_notify,
+	.priority = 0,
+};
+
+void __init setup_ipl(void)
+{
+	ipl_info.type = get_ipl_type();
+	switch (ipl_info.type) {
+	case IPL_TYPE_CCW:
+		ipl_info.data.ccw.dev_id.devno = ipl_devno;
+		ipl_info.data.ccw.dev_id.ssid = 0;
+		break;
+	case IPL_TYPE_FCP:
+	case IPL_TYPE_FCP_DUMP:
+		ipl_info.data.fcp.dev_id.devno =
+			IPL_PARMBLOCK_START->ipl_info.fcp.devno;
+		ipl_info.data.fcp.dev_id.ssid = 0;
+		ipl_info.data.fcp.wwpn = IPL_PARMBLOCK_START->ipl_info.fcp.wwpn;
+		ipl_info.data.fcp.lun = IPL_PARMBLOCK_START->ipl_info.fcp.lun;
+		break;
+	case IPL_TYPE_NSS:
+		strncpy(ipl_info.data.nss.name, kernel_nss_name,
+			sizeof(ipl_info.data.nss.name));
+		break;
+	case IPL_TYPE_UNKNOWN:
+	default:
+		/* We have no info to copy */
+		break;
+	}
+	atomic_notifier_chain_register(&panic_notifier_list, &on_panic_nb);
+}
+
 void __init ipl_save_parameters(void)
 {
 	struct cio_iplinfo iplinfo;
@@ -1202,3 +1468,4 @@ void s390_reset_system(void)
 
 	do_reset_calls();
 }
+
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index cbdf3fb05e81..fcebf645618a 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -125,75 +125,6 @@ void __cpuinit cpu_init(void)
         enter_lazy_tlb(&init_mm, current);
 }
 
-/*
- * VM halt and poweroff setup routines
- */
-char vmhalt_cmd[128] = "";
-char vmpoff_cmd[128] = "";
-static char vmpanic_cmd[128] = "";
-
-static void strncpy_skip_quote(char *dst, char *src, int n)
-{
-        int sx, dx;
-
-        dx = 0;
-        for (sx = 0; src[sx] != 0; sx++) {
-                if (src[sx] == '"') continue;
-                dst[dx++] = src[sx];
-                if (dx >= n) break;
-        }
-}
-
-static int __init vmhalt_setup(char *str)
-{
-        strncpy_skip_quote(vmhalt_cmd, str, 127);
-        vmhalt_cmd[127] = 0;
-        return 1;
-}
-
-__setup("vmhalt=", vmhalt_setup);
-
-static int __init vmpoff_setup(char *str)
-{
-        strncpy_skip_quote(vmpoff_cmd, str, 127);
-        vmpoff_cmd[127] = 0;
-        return 1;
-}
-
-__setup("vmpoff=", vmpoff_setup);
-
-static int vmpanic_notify(struct notifier_block *self, unsigned long event,
-			  void *data)
-{
-	if (MACHINE_IS_VM && strlen(vmpanic_cmd) > 0)
-		cpcmd(vmpanic_cmd, NULL, 0, NULL);
-
-	return NOTIFY_OK;
-}
-
-#define PANIC_PRI_VMPANIC	0
-
-static struct notifier_block vmpanic_nb = {
-	.notifier_call = vmpanic_notify,
-	.priority = PANIC_PRI_VMPANIC
-};
-
-static int __init vmpanic_setup(char *str)
-{
-	static int register_done __initdata = 0;
-
-	strncpy_skip_quote(vmpanic_cmd, str, 127);
-	vmpanic_cmd[127] = 0;
-	if (!register_done) {
-		register_done = 1;
-		atomic_notifier_chain_register(&panic_notifier_list,
-					       &vmpanic_nb);
-	}
-	return 1;
-}
-
-__setup("vmpanic=", vmpanic_setup);
-
 /*
  * condev= and conmode= setup parameter.
  */
@@ -308,38 +239,6 @@ static void __init setup_zfcpdump(unsigned int console_devno)
 static inline void setup_zfcpdump(unsigned int console_devno) {}
 #endif /* CONFIG_ZFCPDUMP */
 
-#ifdef CONFIG_SMP
-void (*_machine_restart)(char *command) = machine_restart_smp;
-void (*_machine_halt)(void) = machine_halt_smp;
-void (*_machine_power_off)(void) = machine_power_off_smp;
-#else
-/*
- * Reboot, halt and power_off routines for non SMP.
- */
-static void do_machine_restart_nonsmp(char * __unused)
-{
-	do_reipl();
-}
-
-static void do_machine_halt_nonsmp(void)
-{
-        if (MACHINE_IS_VM && strlen(vmhalt_cmd) > 0)
-		__cpcmd(vmhalt_cmd, NULL, 0, NULL);
-        signal_processor(smp_processor_id(), sigp_stop_and_store_status);
-}
-
-static void do_machine_power_off_nonsmp(void)
-{
-        if (MACHINE_IS_VM && strlen(vmpoff_cmd) > 0)
-		__cpcmd(vmpoff_cmd, NULL, 0, NULL);
-        signal_processor(smp_processor_id(), sigp_stop_and_store_status);
-}
-
-void (*_machine_restart)(char *command) = do_machine_restart_nonsmp;
-void (*_machine_halt)(void) = do_machine_halt_nonsmp;
-void (*_machine_power_off)(void) = do_machine_power_off_nonsmp;
-#endif
-
  /*
  * Reboot, halt and power_off stubs. They just call _machine_restart,
  * _machine_halt or _machine_power_off. 
@@ -913,7 +812,7 @@ setup_arch(char **cmdline_p)
 
 	parse_early_param();
 
-	setup_ipl_info();
+	setup_ipl();
 	setup_memory_end();
 	setup_addressing_mode();
 	setup_memory();
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 320e4e97bf52..d300a7fdf711 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -233,33 +233,6 @@ void smp_send_stop(void)
 	}
 }
 
-/*
- * Reboot, halt and power_off routines for SMP.
- */
-void machine_restart_smp(char *__unused)
-{
-	smp_send_stop();
-	do_reipl();
-}
-
-void machine_halt_smp(void)
-{
-	smp_send_stop();
-	if (MACHINE_IS_VM && strlen(vmhalt_cmd) > 0)
-		__cpcmd(vmhalt_cmd, NULL, 0, NULL);
-	signal_processor(smp_processor_id(), sigp_stop_and_store_status);
-	for (;;);
-}
-
-void machine_power_off_smp(void)
-{
-	smp_send_stop();
-	if (MACHINE_IS_VM && strlen(vmpoff_cmd) > 0)
-		__cpcmd(vmpoff_cmd, NULL, 0, NULL);
-	signal_processor(smp_processor_id(), sigp_stop_and_store_status);
-	for (;;);
-}
-
 /*
  * This is the main routine where commands issued by other
  * cpus are handled.
diff --git a/include/asm-s390/ipl.h b/include/asm-s390/ipl.h
index 2c40fd3a137f..d0dcc9c5f7c3 100644
--- a/include/asm-s390/ipl.h
+++ b/include/asm-s390/ipl.h
@@ -83,6 +83,8 @@ extern u32 dump_prefix_page;
 extern unsigned int zfcpdump_prefix_array[];
 
 extern void do_reipl(void);
+extern void do_halt(void);
+extern void do_poff(void);
 extern void ipl_save_parameters(void);
 
 enum {
@@ -118,7 +120,7 @@ struct ipl_info
 };
 
 extern struct ipl_info ipl_info;
-extern void setup_ipl_info(void);
+extern void setup_ipl(void);
 
 /*
  * DIAG 308 support
-- 
cgit v1.2.3-59-g8ed1b


From c654749777e8624187b53fbb94cea91a7bf74347 Mon Sep 17 00:00:00 2001
From: Michael Holzheu <holzheu@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:12 +0100
Subject: [S390] Load disabled wait psw instead of stopping cpu on halt.

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/ipl.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index d73aff63725f..e3b9c6cc3aec 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -1096,8 +1096,12 @@ static struct shutdown_action vmcmd_action = {SHUTDOWN_ACTION_VMCMD_STR,
 
 static void stop_run(struct shutdown_trigger *trigger)
 {
-	signal_processor(smp_processor_id(), sigp_stop_and_store_status);
-	for (;;);
+	if (strcmp(trigger->name, ON_PANIC_STR) == 0)
+		disabled_wait((unsigned long) __builtin_return_address(0));
+	else {
+		signal_processor(smp_processor_id(), sigp_stop);
+		for (;;);
+	}
 }
 
 static struct shutdown_action stop_action = {SHUTDOWN_ACTION_STOP_STR,
-- 
cgit v1.2.3-59-g8ed1b


From c11ca97ee9d2ed593ab7b5523def7787b46f398f Mon Sep 17 00:00:00 2001
From: Denis Cheng <crquan@gmail.com>
Date: Sat, 26 Jan 2008 14:11:13 +0100
Subject: [S390] use LIST_HEAD instead of LIST_HEAD_INIT

single list_head variable initialized with LIST_HEAD_INIT could almost
always can be replaced with LIST_HEAD declaration, this shrinks the code
and looks better.

Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/mm/extmem.c         | 2 +-
 drivers/s390/block/dcssblk.c  | 2 +-
 drivers/s390/char/raw3270.c   | 4 ++--
 drivers/s390/char/tape_core.c | 2 +-
 drivers/s390/net/netiucv.c    | 3 +--
 drivers/s390/net/smsgiucv.c   | 2 +-
 6 files changed, 7 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 394980b05e6f..880b0ebf894b 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -83,7 +83,7 @@ struct dcss_segment {
 };
 
 static DEFINE_MUTEX(dcss_lock);
-static struct list_head dcss_list = LIST_HEAD_INIT(dcss_list);
+static LIST_HEAD(dcss_list);
 static char *segtype_string[] = { "SW", "EW", "SR", "ER", "SN", "EN", "SC",
 					"EW/EN-MIXED" };
 
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 15a5789b7734..7779bfce1c31 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -82,7 +82,7 @@ struct dcssblk_dev_info {
 	struct request_queue *dcssblk_queue;
 };
 
-static struct list_head dcssblk_devices = LIST_HEAD_INIT(dcssblk_devices);
+static LIST_HEAD(dcssblk_devices);
 static struct rw_semaphore dcssblk_devices_sem;
 
 /*
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 8d1c64a24dec..0d98f1ff2edd 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -66,7 +66,7 @@ struct raw3270 {
 static DEFINE_MUTEX(raw3270_mutex);
 
 /* List of 3270 devices. */
-static struct list_head raw3270_devices = LIST_HEAD_INIT(raw3270_devices);
+static LIST_HEAD(raw3270_devices);
 
 /*
  * Flag to indicate if the driver has been registered. Some operations
@@ -1210,7 +1210,7 @@ struct raw3270_notifier {
 	void (*notifier)(int, int);
 };
 
-static struct list_head raw3270_notifier = LIST_HEAD_INIT(raw3270_notifier);
+static LIST_HEAD(raw3270_notifier);
 
 int raw3270_register_notifier(void (*notifier)(int, int))
 {
diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c
index 2fae6338ee1c..7ad8cf157641 100644
--- a/drivers/s390/char/tape_core.c
+++ b/drivers/s390/char/tape_core.c
@@ -37,7 +37,7 @@ static void tape_long_busy_timeout(unsigned long data);
  * we can assign the devices to minor numbers of the same major
  * The list is protected by the rwlock
  */
-static struct list_head tape_device_list = LIST_HEAD_INIT(tape_device_list);
+static LIST_HEAD(tape_device_list);
 static DEFINE_RWLOCK(tape_device_lock);
 
 /*
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index d6e93f15440e..f3d893cfe61d 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -198,8 +198,7 @@ struct iucv_connection {
 /**
  * Linked list of all connection structs.
  */
-static struct list_head iucv_connection_list =
-	LIST_HEAD_INIT(iucv_connection_list);
+static LIST_HEAD(iucv_connection_list);
 static DEFINE_RWLOCK(iucv_connection_rwlock);
 
 /**
diff --git a/drivers/s390/net/smsgiucv.c b/drivers/s390/net/smsgiucv.c
index 47bb47b48581..8735a415a116 100644
--- a/drivers/s390/net/smsgiucv.c
+++ b/drivers/s390/net/smsgiucv.c
@@ -42,7 +42,7 @@ MODULE_DESCRIPTION ("Linux for S/390 IUCV special message driver");
 static struct iucv_path *smsg_path;
 
 static DEFINE_SPINLOCK(smsg_list_lock);
-static struct list_head smsg_list = LIST_HEAD_INIT(smsg_list);
+static LIST_HEAD(smsg_list);
 
 static int smsg_path_pending(struct iucv_path *, u8 ipvmid[8], u8 ipuser[16]);
 static void smsg_message_pending(struct iucv_path *, struct iucv_message *);
-- 
cgit v1.2.3-59-g8ed1b


From 1cb6bb4bbdfd7b6bbdd148c4a34c02066339806d Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:14 +0100
Subject: [S390] Allocate and free cpu lowcores and stacks when
 needed/possible.

No need to preallocate the per cpu lowcores and stacks.
Savings are 28-32k per offline cpu.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/smp.c | 106 +++++++++++++++++++++++++++++++++----------------
 1 file changed, 72 insertions(+), 34 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index d300a7fdf711..040406dbe9aa 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -589,8 +589,72 @@ static void __init smp_create_idle(unsigned int cpu)
 	spin_lock_init(&(&per_cpu(s390_idle, cpu))->lock);
 }
 
+static int __cpuinit smp_alloc_lowcore(int cpu)
+{
+	unsigned long async_stack, panic_stack;
+	struct _lowcore *lowcore;
+	int lc_order;
+
+	lc_order = sizeof(long) == 8 ? 1 : 0;
+	lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, lc_order);
+	if (!lowcore)
+		return -ENOMEM;
+	async_stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER);
+	if (!async_stack)
+		goto out_async_stack;
+	panic_stack = __get_free_page(GFP_KERNEL);
+	if (!panic_stack)
+		goto out_panic_stack;
+
+	*lowcore = S390_lowcore;
+	lowcore->async_stack = async_stack + ASYNC_SIZE;
+	lowcore->panic_stack = panic_stack + PAGE_SIZE;
+
+#ifndef CONFIG_64BIT
+	if (MACHINE_HAS_IEEE) {
+		unsigned long save_area;
+
+		save_area = get_zeroed_page(GFP_KERNEL);
+		if (!save_area)
+			goto out_save_area;
+		lowcore->extended_save_area_addr = (u32) save_area;
+	}
+#endif
+	lowcore_ptr[cpu] = lowcore;
+	return 0;
+
+#ifndef CONFIG_64BIT
+out_save_area:
+	free_page(panic_stack);
+#endif
+out_panic_stack:
+	free_pages(async_stack, ASYNC_ORDER);
+out_async_stack:
+	free_pages((unsigned long) lowcore, lc_order);
+	return -ENOMEM;
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+static void smp_free_lowcore(int cpu)
+{
+	struct _lowcore *lowcore;
+	int lc_order;
+
+	lc_order = sizeof(long) == 8 ? 1 : 0;
+	lowcore = lowcore_ptr[cpu];
+#ifndef CONFIG_64BIT
+	if (MACHINE_HAS_IEEE)
+		free_page((unsigned long) lowcore->extended_save_area_addr);
+#endif
+	free_page(lowcore->panic_stack - PAGE_SIZE);
+	free_pages(lowcore->async_stack - ASYNC_SIZE, ASYNC_ORDER);
+	free_pages((unsigned long) lowcore, lc_order);
+	lowcore_ptr[cpu] = NULL;
+}
+#endif /* CONFIG_HOTPLUG_CPU */
+
 /* Upping and downing of CPUs */
-int __cpu_up(unsigned int cpu)
+int __cpuinit __cpu_up(unsigned int cpu)
 {
 	struct task_struct *idle;
 	struct _lowcore *cpu_lowcore;
@@ -599,6 +663,8 @@ int __cpu_up(unsigned int cpu)
 
 	if (smp_cpu_state[cpu] != CPU_STATE_CONFIGURED)
 		return -EIO;
+	if (smp_alloc_lowcore(cpu))
+		return -ENOMEM;
 
 	ccode = signal_processor_p((__u32)(unsigned long)(lowcore_ptr[cpu]),
 				   cpu, sigp_set_prefix);
@@ -613,6 +679,7 @@ int __cpu_up(unsigned int cpu)
 	cpu_lowcore = lowcore_ptr[cpu];
 	cpu_lowcore->kernel_stack = (unsigned long)
 		task_stack_page(idle) + THREAD_SIZE;
+	cpu_lowcore->thread_info = (unsigned long) task_thread_info(idle);
 	sf = (struct stack_frame *) (cpu_lowcore->kernel_stack
 				     - sizeof(struct pt_regs)
 				     - sizeof(struct stack_frame));
@@ -626,6 +693,8 @@ int __cpu_up(unsigned int cpu)
 	cpu_lowcore->percpu_offset = __per_cpu_offset[cpu];
 	cpu_lowcore->current_task = (unsigned long) idle;
 	cpu_lowcore->cpu_data.cpu_nr = cpu;
+	cpu_lowcore->softirq_pending = 0;
+	cpu_lowcore->ext_call_fast = 0;
 	eieio();
 
 	while (signal_processor(cpu, sigp_restart) == sigp_busy)
@@ -686,6 +755,7 @@ void __cpu_die(unsigned int cpu)
 	/* Wait until target cpu is down */
 	while (!smp_cpu_not_running(cpu))
 		cpu_relax();
+	smp_free_lowcore(cpu);
 	printk(KERN_INFO "Processor %d spun down\n", cpu);
 }
 
@@ -699,15 +769,9 @@ void cpu_die(void)
 
 #endif /* CONFIG_HOTPLUG_CPU */
 
-/*
- *	Cycle through the processors and setup structures.
- */
-
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
-	unsigned long stack;
 	unsigned int cpu;
-	int i;
 
 	smp_detect_cpus();
 
@@ -715,35 +779,9 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 	if (register_external_interrupt(0x1201, do_ext_call_interrupt) != 0)
 		panic("Couldn't request external interrupt 0x1201");
 	memset(lowcore_ptr, 0, sizeof(lowcore_ptr));
-	/*
-	 *  Initialize prefix pages and stacks for all possible cpus
-	 */
 	print_cpu_info(&S390_lowcore.cpu_data);
+	smp_alloc_lowcore(smp_processor_id());
 
-	for_each_possible_cpu(i) {
-		lowcore_ptr[i] = (struct _lowcore *)
-			__get_free_pages(GFP_KERNEL | GFP_DMA,
-					 sizeof(void*) == 8 ? 1 : 0);
-		stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER);
-		if (!lowcore_ptr[i] || !stack)
-			panic("smp_boot_cpus failed to allocate memory\n");
-
-		*(lowcore_ptr[i]) = S390_lowcore;
-		lowcore_ptr[i]->async_stack = stack + ASYNC_SIZE;
-		stack = __get_free_pages(GFP_KERNEL, 0);
-		if (!stack)
-			panic("smp_boot_cpus failed to allocate memory\n");
-		lowcore_ptr[i]->panic_stack = stack + PAGE_SIZE;
-#ifndef CONFIG_64BIT
-		if (MACHINE_HAS_IEEE) {
-			lowcore_ptr[i]->extended_save_area_addr =
-				(__u32) __get_free_pages(GFP_KERNEL, 0);
-			if (!lowcore_ptr[i]->extended_save_area_addr)
-				panic("smp_boot_cpus failed to "
-				      "allocate memory\n");
-		}
-#endif
-	}
 #ifndef CONFIG_64BIT
 	if (MACHINE_HAS_IEEE)
 		ctl_set_bit(14, 29); /* enable extended save area */
-- 
cgit v1.2.3-59-g8ed1b


From d09293aee9fd0f9f291fa3a0e4ca5012f514d083 Mon Sep 17 00:00:00 2001
From: Michael Holzheu <holzheu@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:15 +0100
Subject: [S390] Initialize sclp_ipl_info

The sclp ipl information has not been initialized. Therefore the ipl loadparm
and the "has_dump" flag have not been set correctly.

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/ipl.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index e3b9c6cc3aec..14bdde9def40 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -1287,6 +1287,7 @@ static void __init shutdown_actions_init(void)
 static int __init s390_ipl_init(void)
 {
 	reipl_probe();
+	sclp_get_ipl_info(&sclp_ipl_info);
 	shutdown_actions_init();
 	shutdown_triggers_init();
 	return 0;
-- 
cgit v1.2.3-59-g8ed1b


From a2fd64d6aaf498756f700eb1d07818efee046733 Mon Sep 17 00:00:00 2001
From: Christian Borntraeger <borntraeger@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:16 +0100
Subject: [S390] vmemmap: allocate struct pages before 1:1 mapping

We have seen an oops in an OOM situation, where show_mem tried to
access the struct page of a dcss segment. The vmemmap code has
already created the 1:1 mapping but failed allocating the struct
pages. In the OOM case, show_mem now walks the memory. It uses
pfn_valid to detect if it may access the struct page. In the case
described above, the mapping was established and pfn_valid returned
true. As the struct pages were not allocated, the kernel oopsed.

We have to ensure that we have created the struct pages, before we
add a mapping pointing to the pages.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/mm/vmem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index 1fc99891c4eb..79d13a166a3d 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -236,10 +236,10 @@ static int vmem_add_mem(unsigned long start, unsigned long size)
 {
 	int ret;
 
-	ret = vmem_add_range(start, size);
+	ret = vmem_add_mem_map(start, size);
 	if (ret)
 		return ret;
-	return vmem_add_mem_map(start, size);
+	return vmem_add_range(start, size);
 }
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From 48657d223d403af676696d313b421368f5e2208a Mon Sep 17 00:00:00 2001
From: Michael Holzheu <holzheu@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:17 +0100
Subject: [S390] Use diag308 subcodes 3 and 6 for reboot and dump when
 possible.

This patch fixes a problem with the following scenario:
 1. Linux booted from DASD "A"
 2. Reboot from DASD "B" using "/sys/firmware/reipl/ccw/device"
 3. Reboot DASD "B"
Without this patch in step 3 on newer s390 systems under LPAR instead of
DASD "B", DASD "A" will be booted. The reason is that in step 2 we use CCW
reipl and in step 3 we use DIAG308 (subcode 3) reipl. DIAG308 does not
notice the CCW reipl and still thinks that it has to reboot DASD "A".
Before applying this fix, ensure to have MCF RJ9967101E or z9 GA3 base driver
installed.

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/ipl.c | 14 ++++++++------
 include/asm-s390/ipl.h |  4 ++++
 2 files changed, 12 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 14bdde9def40..db28cca81fef 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -595,7 +595,9 @@ static int reipl_set_type(enum ipl_type type)
 
 	switch(type) {
 	case IPL_TYPE_CCW:
-		if (MACHINE_IS_VM)
+		if (diag308_set_works)
+			reipl_method = REIPL_METHOD_CCW_DIAG;
+		else if (MACHINE_IS_VM)
 			reipl_method = REIPL_METHOD_CCW_VM;
 		else
 			reipl_method = REIPL_METHOD_CCW_CIO;
@@ -659,8 +661,6 @@ void reipl_run(struct shutdown_trigger *trigger)
 	switch (reipl_method) {
 	case REIPL_METHOD_CCW_CIO:
 		devid.devno = reipl_block_ccw->ipl_info.ccw.devno;
-		if (ipl_info.type == IPL_TYPE_CCW && devid.devno == ipl_devno)
-			diag308(DIAG308_IPL, NULL);
 		devid.ssid  = 0;
 		reipl_ccw_dev(&devid);
 		break;
@@ -745,6 +745,7 @@ static int __init reipl_ccw_init(void)
 	reipl_block_ccw->hdr.version = IPL_PARM_BLOCK_VERSION;
 	reipl_block_ccw->hdr.blk0_len = IPL_PARM_BLK0_CCW_LEN;
 	reipl_block_ccw->hdr.pbt = DIAG308_IPL_TYPE_CCW;
+	reipl_block_ccw->hdr.flags = DIAG308_FLAGS_LP_VALID;
 	/* check if read scp info worked and set loadparm */
 	if (sclp_ipl_info.is_valid)
 		memcpy(reipl_block_ccw->ipl_info.ccw.load_param,
@@ -753,8 +754,7 @@ static int __init reipl_ccw_init(void)
 		/* read scp info failed: set empty loadparm (EBCDIC blanks) */
 		memset(reipl_block_ccw->ipl_info.ccw.load_param, 0x40,
 		       LOADPARM_LEN);
-	/* FIXME: check for diag308_set_works when enabling diag ccw reipl */
-	if (!MACHINE_IS_VM)
+	if (!MACHINE_IS_VM && !diag308_set_works)
 		sys_reipl_ccw_loadparm_attr.attr.mode = S_IRUGO;
 	if (ipl_info.type == IPL_TYPE_CCW)
 		reipl_block_ccw->ipl_info.ccw.devno = ipl_devno;
@@ -876,7 +876,9 @@ static int dump_set_type(enum dump_type type)
 		return -EINVAL;
 	switch (type) {
 	case DUMP_TYPE_CCW:
-		if (MACHINE_IS_VM)
+		if (diag308_set_works)
+			dump_method = DUMP_METHOD_CCW_DIAG;
+		else if (MACHINE_IS_VM)
 			dump_method = DUMP_METHOD_CCW_VM;
 		else
 			dump_method = DUMP_METHOD_CCW_CIO;
diff --git a/include/asm-s390/ipl.h b/include/asm-s390/ipl.h
index d0dcc9c5f7c3..c1b2e50392bb 100644
--- a/include/asm-s390/ipl.h
+++ b/include/asm-s390/ipl.h
@@ -143,6 +143,10 @@ enum diag308_opt {
 	DIAG308_IPL_OPT_DUMP	= 0x20,
 };
 
+enum diag308_flags {
+	DIAG308_FLAGS_LP_VALID	= 0x80,
+};
+
 enum diag308_rc {
 	DIAG308_RC_OK	= 1,
 };
-- 
cgit v1.2.3-59-g8ed1b


From c2e3bbac72d5a954bf60c5fabeb7c82ec310035e Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 26 Jan 2008 14:11:18 +0100
Subject: [S390] arch/s390/: Spelling fixes

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/crypto/prng.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c
index 8eb3a1aedc22..23ed094c52fe 100644
--- a/arch/s390/crypto/prng.c
+++ b/arch/s390/crypto/prng.c
@@ -90,7 +90,7 @@ static ssize_t prng_read(struct file *file, char __user *ubuf, size_t nbytes,
 	int ret = 0;
 	int tmp;
 
-	/* nbytes can be arbitrary long, we spilt it into chunks */
+	/* nbytes can be arbitrary length, we split it into chunks */
 	while (nbytes) {
 		/* same as in extract_entropy_user in random.c */
 		if (need_resched()) {
-- 
cgit v1.2.3-59-g8ed1b


From ea29ee16e6ea908c830e70516d440828fd9129a8 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:21 +0100
Subject: [S390] Move NOTES and BUG_TABLE.

Move the NOTES and BUG_TABLE section in the linker script to the
read-only sections right after the text section.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/vmlinux.lds.S | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 849120e3e28a..936159199346 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -17,6 +17,12 @@ ENTRY(_start)
 jiffies = jiffies_64;
 #endif
 
+PHDRS {
+	text PT_LOAD FLAGS(5);	/* R_E */
+	data PT_LOAD FLAGS(7);	/* RWE */
+	note PT_NOTE FLAGS(0);	/* ___ */
+}
+
 SECTIONS
 {
 	. = 0x00000000;
@@ -33,6 +39,9 @@ SECTIONS
 
 	_etext = .;		/* End of text section */
 
+	NOTES :text :note
+	BUG_TABLE :text
+
 	RODATA
 
 #ifdef CONFIG_SHARED_KERNEL
@@ -49,9 +58,6 @@ SECTIONS
 		__stop___ex_table = .;
 	}
 
-	NOTES
-	BUG_TABLE
-
 	.data : {		/* Data */
 		DATA_DATA
 		CONSTRUCTORS
-- 
cgit v1.2.3-59-g8ed1b


From 0ac30be461084f30ad6e22c6b91347e880ed41aa Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Sat, 26 Jan 2008 14:11:22 +0100
Subject: [S390] single-step cleanup

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/ptrace.c | 15 ++++++---------
 arch/s390/kernel/signal.c | 20 +++++++++++++-------
 include/asm-s390/ptrace.h |  8 ++++++++
 3 files changed, 27 insertions(+), 16 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 1d81bf9488ae..6e036bae9875 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -86,13 +86,13 @@ FixPerRegisters(struct task_struct *task)
 		per_info->control_regs.bits.storage_alt_space_ctl = 0;
 }
 
-static void set_single_step(struct task_struct *task)
+void user_enable_single_step(struct task_struct *task)
 {
 	task->thread.per_info.single_step = 1;
 	FixPerRegisters(task);
 }
 
-static void clear_single_step(struct task_struct *task)
+void user_disable_single_step(struct task_struct *task)
 {
 	task->thread.per_info.single_step = 0;
 	FixPerRegisters(task);
@@ -107,7 +107,7 @@ void
 ptrace_disable(struct task_struct *child)
 {
 	/* make sure the single step bit is not set. */
-	clear_single_step(child);
+	user_disable_single_step(child);
 }
 
 #ifndef CONFIG_64BIT
@@ -651,7 +651,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data)
 			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
 		child->exit_code = data;
 		/* make sure the single step bit is not set. */
-		clear_single_step(child);
+		user_disable_single_step(child);
 		wake_up_process(child);
 		return 0;
 
@@ -665,7 +665,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data)
 			return 0;
 		child->exit_code = SIGKILL;
 		/* make sure the single step bit is not set. */
-		clear_single_step(child);
+		user_disable_single_step(child);
 		wake_up_process(child);
 		return 0;
 
@@ -675,10 +675,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data)
 			return -EIO;
 		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
 		child->exit_code = data;
-		if (data)
-			set_tsk_thread_flag(child, TIF_SINGLE_STEP);
-		else
-			set_single_step(child);
+		user_enable_single_step(child);
 		/* give it a chance to run. */
 		wake_up_process(child);
 		return 0;
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index d264671c1b71..4449bf32cbf1 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -471,6 +471,7 @@ void do_signal(struct pt_regs *regs)
 
 	if (signr > 0) {
 		/* Whee!  Actually deliver the signal.  */
+		int ret;
 #ifdef CONFIG_COMPAT
 		if (test_thread_flag(TIF_31BIT)) {
 			extern int handle_signal32(unsigned long sig,
@@ -478,15 +479,12 @@ void do_signal(struct pt_regs *regs)
 						   siginfo_t *info,
 						   sigset_t *oldset,
 						   struct pt_regs *regs);
-			if (handle_signal32(
-				    signr, &ka, &info, oldset, regs) == 0) {
-				if (test_thread_flag(TIF_RESTORE_SIGMASK))
-					clear_thread_flag(TIF_RESTORE_SIGMASK);
-			}
-			return;
+			ret = handle_signal32(signr, &ka, &info, oldset, regs);
 	        }
+		else
 #endif
-		if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+			ret = handle_signal(signr, &ka, &info, oldset, regs);
+		if (!ret) {
 			/*
 			 * A signal was successfully delivered; the saved
 			 * sigmask will have been stored in the signal frame,
@@ -495,6 +493,14 @@ void do_signal(struct pt_regs *regs)
 			 */
 			if (test_thread_flag(TIF_RESTORE_SIGMASK))
 				clear_thread_flag(TIF_RESTORE_SIGMASK);
+
+			/*
+			 * If we would have taken a single-step trap
+			 * for a normal instruction, act like we took
+			 * one for the handler setup.
+			 */
+			if (current->thread.per_info.single_step)
+				set_thread_flag(TIF_SINGLE_STEP);
 		}
 		return;
 	}
diff --git a/include/asm-s390/ptrace.h b/include/asm-s390/ptrace.h
index 332ee73688fc..61f6952f2e35 100644
--- a/include/asm-s390/ptrace.h
+++ b/include/asm-s390/ptrace.h
@@ -465,6 +465,14 @@ struct user_regs_struct
 #ifdef __KERNEL__
 #define __ARCH_SYS_PTRACE	1
 
+/*
+ * These are defined as per linux/ptrace.h, which see.
+ */
+#define arch_has_single_step()	(1)
+struct task_struct;
+extern void user_enable_single_step(struct task_struct *);
+extern void user_disable_single_step(struct task_struct *);
+
 #define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0)
 #define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN)
 #define regs_return_value(regs)((regs)->gprs[2])
-- 
cgit v1.2.3-59-g8ed1b


From 53360fb19672e9ca94d769694a18f46f6e0612a9 Mon Sep 17 00:00:00 2001
From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Sat, 26 Jan 2008 14:11:24 +0100
Subject: [S390] Remove TOPDIR from Makefile

This patch removes TOPDIR from arch/s390/kernel/Makefile.

Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/Makefile | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index 56cb71007cd9..b3b650a93c7c 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -31,7 +31,3 @@ S390_KEXEC_OBJS := machine_kexec.o crash.o
 S390_KEXEC_OBJS += $(if $(CONFIG_64BIT),relocate_kernel64.o,relocate_kernel.o)
 obj-$(CONFIG_KEXEC) += $(S390_KEXEC_OBJS)
 
-#
-# This is just to get the dependencies...
-#
-binfmt_elf32.o:	$(TOPDIR)/fs/binfmt_elf.c
-- 
cgit v1.2.3-59-g8ed1b


From dab5209cd878c146d9f6923f061d1c2725ff210f Mon Sep 17 00:00:00 2001
From: Carsten Otte <cotte@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:27 +0100
Subject: [S390] add smp_call_function_mask

This patch adds the s390 variant for smp_call_function_mask(). The
implementation is pretty straight forward using the wrapper
__smp_call_function_map() which already takes a cpumask_t argument.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/smp.c | 27 +++++++++++++++++++++++++++
 include/asm-s390/smp.h |  2 ++
 2 files changed, 29 insertions(+)

(limited to 'arch')

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 040406dbe9aa..f66db7185d85 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -210,6 +210,33 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
 }
 EXPORT_SYMBOL(smp_call_function_single);
 
+/**
+ * smp_call_function_mask(): Run a function on a set of other CPUs.
+ * @mask: The set of cpus to run on.  Must not include the current cpu.
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @wait: If true, wait (atomically) until function has completed on other CPUs.
+ *
+ * Returns 0 on success, else a negative status code.
+ *
+ * If @wait is true, then returns once @func has returned; otherwise
+ * it returns just before the target cpu calls @func.
+ *
+ * You must not call this function with disabled interrupts or from a
+ * hardware interrupt handler or from a bottom half handler.
+ */
+int
+smp_call_function_mask(cpumask_t mask,
+			void (*func)(void *), void *info,
+			int wait)
+{
+	preempt_disable();
+	__smp_call_function_map(func, info, 0, wait, mask);
+	preempt_enable();
+	return 0;
+}
+EXPORT_SYMBOL(smp_call_function_mask);
+
 void smp_send_stop(void)
 {
 	int cpu, rc;
diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
index 218454b91862..c7b74326a527 100644
--- a/include/asm-s390/smp.h
+++ b/include/asm-s390/smp.h
@@ -90,6 +90,8 @@ extern void __cpu_die (unsigned int cpu);
 extern void cpu_die (void) __attribute__ ((noreturn));
 extern int __cpu_up (unsigned int cpu);
 
+extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *),
+	void *info, int wait);
 #endif
 
 #ifndef CONFIG_SMP
-- 
cgit v1.2.3-59-g8ed1b


From 894cdde26b538c77b9943bc72f0570abf6e58e37 Mon Sep 17 00:00:00 2001
From: Hisashi Hifumi <hifumi.hisashi@oss.ntt.co.jp>
Date: Sat, 26 Jan 2008 14:11:28 +0100
Subject: [S390] do local_irq_restore while spinning in spin_lock_irqsave.

In s390's spin_lock_irqsave, interrupts remain disabled while
spinning. In other architectures like x86 and powerpc, interrupts are
re-enabled while spinning if IRQ is not masked before spin_lock_irqsave
is called.

The following patch re-enables interrupts through local_irq_restore
while spinning for a lock acquisition.
This can improve system response.

[heiko.carstens@de.ibm.com: removed saving of pc]

Signed-off-by: Hisashi Hifumi <hifumi.hisashi@oss.ntt.co.jp>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/lib/spinlock.c    | 23 +++++++++++++++++++++++
 include/asm-s390/spinlock.h | 13 ++++++++++++-
 2 files changed, 35 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c
index 59c56c3d72d0..e41f4008afc5 100644
--- a/arch/s390/lib/spinlock.c
+++ b/arch/s390/lib/spinlock.c
@@ -59,6 +59,29 @@ void _raw_spin_lock_wait(raw_spinlock_t *lp)
 }
 EXPORT_SYMBOL(_raw_spin_lock_wait);
 
+void _raw_spin_lock_wait_flags(raw_spinlock_t *lp, unsigned long flags)
+{
+	int count = spin_retry;
+	unsigned int cpu = ~smp_processor_id();
+
+	local_irq_restore(flags);
+	while (1) {
+		if (count-- <= 0) {
+			unsigned int owner = lp->owner_cpu;
+			if (owner != 0)
+				_raw_yield_cpu(~owner);
+			count = spin_retry;
+		}
+		if (__raw_spin_is_locked(lp))
+			continue;
+		local_irq_disable();
+		if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0)
+			return;
+		local_irq_restore(flags);
+	}
+}
+EXPORT_SYMBOL(_raw_spin_lock_wait_flags);
+
 int _raw_spin_trylock_retry(raw_spinlock_t *lp)
 {
 	unsigned int cpu = ~smp_processor_id();
diff --git a/include/asm-s390/spinlock.h b/include/asm-s390/spinlock.h
index c1d6e7e304e2..df84ae96915f 100644
--- a/include/asm-s390/spinlock.h
+++ b/include/asm-s390/spinlock.h
@@ -53,12 +53,12 @@ _raw_compare_and_swap(volatile unsigned int *lock,
  */
 
 #define __raw_spin_is_locked(x) ((x)->owner_cpu != 0)
-#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
 #define __raw_spin_unlock_wait(lock) \
 	do { while (__raw_spin_is_locked(lock)) \
 		 _raw_spin_relax(lock); } while (0)
 
 extern void _raw_spin_lock_wait(raw_spinlock_t *);
+extern void _raw_spin_lock_wait_flags(raw_spinlock_t *, unsigned long flags);
 extern int _raw_spin_trylock_retry(raw_spinlock_t *);
 extern void _raw_spin_relax(raw_spinlock_t *lock);
 
@@ -72,6 +72,17 @@ static inline void __raw_spin_lock(raw_spinlock_t *lp)
 	_raw_spin_lock_wait(lp);
 }
 
+static inline void __raw_spin_lock_flags(raw_spinlock_t *lp,
+					 unsigned long flags)
+{
+	int old;
+
+	old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id());
+	if (likely(old == 0))
+		return;
+	_raw_spin_lock_wait_flags(lp, flags);
+}
+
 static inline int __raw_spin_trylock(raw_spinlock_t *lp)
 {
 	int old;
-- 
cgit v1.2.3-59-g8ed1b


From 5c81cdbeff72e7fc2eb62ee5dc26197e54f9a06c Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@computergmbh.de>
Date: Sat, 26 Jan 2008 14:11:29 +0100
Subject: [S390] constify function pointer tables.

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/crypto/prng.c        | 2 +-
 arch/s390/kernel/setup.c       | 2 +-
 drivers/s390/block/dasd_proc.c | 2 +-
 drivers/s390/char/tape_proc.c  | 2 +-
 drivers/s390/char/vmur.c       | 2 +-
 drivers/s390/char/zcore.c      | 2 +-
 drivers/s390/cio/blacklist.c   | 2 +-
 drivers/s390/net/qeth_proc.c   | 4 ++--
 8 files changed, 9 insertions(+), 9 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c
index 23ed094c52fe..0cfefddd8375 100644
--- a/arch/s390/crypto/prng.c
+++ b/arch/s390/crypto/prng.c
@@ -146,7 +146,7 @@ static ssize_t prng_read(struct file *file, char __user *ubuf, size_t nbytes,
 	return ret;
 }
 
-static struct file_operations prng_fops = {
+static const struct file_operations prng_fops = {
 	.owner		= THIS_MODULE,
 	.open		= &prng_open,
 	.release	= NULL,
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index fcebf645618a..766c783bd7a7 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -917,7 +917,7 @@ static void *c_next(struct seq_file *m, void *v, loff_t *pos)
 static void c_stop(struct seq_file *m, void *v)
 {
 }
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
 	.start	= c_start,
 	.next	= c_next,
 	.stop	= c_stop,
diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c
index 0584a7dc5ede..28a86f070048 100644
--- a/drivers/s390/block/dasd_proc.c
+++ b/drivers/s390/block/dasd_proc.c
@@ -142,7 +142,7 @@ static void dasd_devices_stop(struct seq_file *m, void *v)
 {
 }
 
-static struct seq_operations dasd_devices_seq_ops = {
+static const struct seq_operations dasd_devices_seq_ops = {
 	.start		= dasd_devices_start,
 	.next		= dasd_devices_next,
 	.stop		= dasd_devices_stop,
diff --git a/drivers/s390/char/tape_proc.c b/drivers/s390/char/tape_proc.c
index cea49f001f89..c9b96d51b28f 100644
--- a/drivers/s390/char/tape_proc.c
+++ b/drivers/s390/char/tape_proc.c
@@ -97,7 +97,7 @@ static void tape_proc_stop(struct seq_file *m, void *v)
 {
 }
 
-static struct seq_operations tape_proc_seq = {
+static const struct seq_operations tape_proc_seq = {
 	.start		= tape_proc_start,
 	.next		= tape_proc_next,
 	.stop		= tape_proc_stop,
diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c
index d70a6e65bf14..7689b500a104 100644
--- a/drivers/s390/char/vmur.c
+++ b/drivers/s390/char/vmur.c
@@ -759,7 +759,7 @@ static loff_t ur_llseek(struct file *file, loff_t offset, int whence)
 	return newpos;
 }
 
-static struct file_operations ur_fops = {
+static const struct file_operations ur_fops = {
 	.owner	 = THIS_MODULE,
 	.open	 = ur_open,
 	.release = ur_release,
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index 7073daf77981..f523501e6e6c 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -470,7 +470,7 @@ static loff_t zcore_lseek(struct file *file, loff_t offset, int orig)
 	return rc;
 }
 
-static struct file_operations zcore_fops = {
+static const struct file_operations zcore_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= zcore_lseek,
 	.read		= zcore_read,
diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c
index bd5f16f80bf8..e8597ec92247 100644
--- a/drivers/s390/cio/blacklist.c
+++ b/drivers/s390/cio/blacklist.c
@@ -348,7 +348,7 @@ cio_ignore_write(struct file *file, const char __user *user_buf,
 	return user_len;
 }
 
-static struct seq_operations cio_ignore_proc_seq_ops = {
+static const struct seq_operations cio_ignore_proc_seq_ops = {
 	.start = cio_ignore_proc_seq_start,
 	.stop  = cio_ignore_proc_seq_stop,
 	.next  = cio_ignore_proc_seq_next,
diff --git a/drivers/s390/net/qeth_proc.c b/drivers/s390/net/qeth_proc.c
index f1ff165a5e05..46ecd03a597e 100644
--- a/drivers/s390/net/qeth_proc.c
+++ b/drivers/s390/net/qeth_proc.c
@@ -146,7 +146,7 @@ qeth_procfile_seq_show(struct seq_file *s, void *it)
 	return 0;
 }
 
-static struct seq_operations qeth_procfile_seq_ops = {
+static const struct seq_operations qeth_procfile_seq_ops = {
 	.start = qeth_procfile_seq_start,
 	.stop  = qeth_procfile_seq_stop,
 	.next  = qeth_procfile_seq_next,
@@ -264,7 +264,7 @@ qeth_perf_procfile_seq_show(struct seq_file *s, void *it)
 	return 0;
 }
 
-static struct seq_operations qeth_perf_procfile_seq_ops = {
+static const struct seq_operations qeth_perf_procfile_seq_ops = {
 	.start = qeth_procfile_seq_start,
 	.stop  = qeth_procfile_seq_stop,
 	.next  = qeth_procfile_seq_next,
-- 
cgit v1.2.3-59-g8ed1b


From 9d40d2e3955185b69c264583d080eb3defcb05a0 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Sat, 26 Jan 2008 14:11:31 +0100
Subject: [S390] replace lock_cpu_hotplug with get_online_cpus

Git commit 86ef5c9a8edd78e6bf92879f32329d89b2d55b5a forgot a few
lock_cpu_hotplug/unlock_cpu_hotplug pairs in arch/s390/kernel/smp.c

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/smp.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index f66db7185d85..aa37fa154512 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -568,9 +568,9 @@ static void __init smp_detect_cpus(void)
 out:
 	kfree(info);
 	printk(KERN_INFO "CPUs: %d configured, %d standby\n", c_cpus, s_cpus);
-	lock_cpu_hotplug();
+	get_online_cpus();
 	smp_rescan_cpus();
-	unlock_cpu_hotplug();
+	put_online_cpus();
 }
 
 /*
@@ -872,7 +872,7 @@ static ssize_t cpu_configure_store(struct sys_device *dev, const char *buf,
 		return -EINVAL;
 
 	mutex_lock(&smp_cpu_state_mutex);
-	lock_cpu_hotplug();
+	get_online_cpus();
 	rc = -EBUSY;
 	if (cpu_online(cpu))
 		goto out;
@@ -896,7 +896,7 @@ static ssize_t cpu_configure_store(struct sys_device *dev, const char *buf,
 		break;
 	}
 out:
-	unlock_cpu_hotplug();
+	put_online_cpus();
 	mutex_unlock(&smp_cpu_state_mutex);
 	return rc ? rc : count;
 }
@@ -1044,7 +1044,7 @@ static ssize_t rescan_store(struct sys_device *dev, const char *buf,
 	int rc;
 
 	mutex_lock(&smp_cpu_state_mutex);
-	lock_cpu_hotplug();
+	get_online_cpus();
 	newcpus = cpu_present_map;
 	rc = smp_rescan_cpus();
 	if (rc)
@@ -1057,7 +1057,7 @@ static ssize_t rescan_store(struct sys_device *dev, const char *buf,
 	}
 	rc = 0;
 out:
-	unlock_cpu_hotplug();
+	put_online_cpus();
 	mutex_unlock(&smp_cpu_state_mutex);
 	return rc ? rc : count;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 4e9f9fd5148004b983b29e15de66918e71da56c0 Mon Sep 17 00:00:00 2001
From: Herbert Valerio Riedel <hvr@gnu.org>
Date: Mon, 26 Nov 2007 18:41:02 +0100
Subject: [ARM] 4668/1: ep93xx: implement new GPIO API

Implement new GPIO API for ep93xx platform as defined in Documentation/gpio.txt
and provide transitional __deprecated wrappers for the previous gpio_line_*
functions.

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig                   |  1 +
 arch/arm/mach-ep93xx/core.c        | 63 +++++++++++++++++++++----------
 include/asm-arm/arch-ep93xx/gpio.h | 76 +++++++++++++++++++++++++++++++++-----
 3 files changed, 111 insertions(+), 29 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a04f507e7f2c..97e58a1863c2 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -217,6 +217,7 @@ config ARCH_EP93XX
 	bool "EP93xx-based"
 	select ARM_AMBA
 	select ARM_VIC
+	select GENERIC_GPIO
 	help
 	  This enables support for the Cirrus EP93xx series of CPUs.
 
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 70b2c7801110..8a7340661377 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -188,7 +188,7 @@ static unsigned char data_direction_register_offset[8] = {
 	0x10, 0x14, 0x18, 0x1c, 0x24, 0x34, 0x3c, 0x44,
 };
 
-void gpio_line_config(int line, int direction)
+static void ep93xx_gpio_set_direction(unsigned line, int direction)
 {
 	unsigned int data_direction_register;
 	unsigned long flags;
@@ -219,39 +219,64 @@ void gpio_line_config(int line, int direction)
 	}
 	local_irq_restore(flags);
 }
+
+void __deprecated gpio_line_config(int line, int direction)
+{
+	ep93xx_gpio_set_direction(line, direction);
+}
 EXPORT_SYMBOL(gpio_line_config);
 
-int gpio_line_get(int line)
+int gpio_direction_input(unsigned gpio)
+{
+	if (gpio > EP93XX_GPIO_LINE_H(7))
+		return -EINVAL;
+
+	ep93xx_gpio_set_direction(gpio, GPIO_IN);
+
+	return 0;
+}
+EXPORT_SYMBOL(gpio_direction_input);
+
+int gpio_direction_output(unsigned gpio, int value)
+{
+	if (gpio > EP93XX_GPIO_LINE_H(7))
+		return -EINVAL;
+
+	gpio_set_value(gpio, value);
+	ep93xx_gpio_set_direction(gpio, GPIO_OUT);
+
+	return 0;
+}
+EXPORT_SYMBOL(gpio_direction_output);
+
+int gpio_get_value(unsigned gpio)
 {
 	unsigned int data_register;
 
-	data_register = EP93XX_GPIO_REG(data_register_offset[line >> 3]);
+	data_register = EP93XX_GPIO_REG(data_register_offset[gpio >> 3]);
 
-	return !!(__raw_readb(data_register) & (1 << (line & 7)));
+	return !!(__raw_readb(data_register) & (1 << (gpio & 7)));
 }
-EXPORT_SYMBOL(gpio_line_get);
+EXPORT_SYMBOL(gpio_get_value);
 
-void gpio_line_set(int line, int value)
+void gpio_set_value(unsigned gpio, int value)
 {
 	unsigned int data_register;
 	unsigned long flags;
 	unsigned char v;
 
-	data_register = EP93XX_GPIO_REG(data_register_offset[line >> 3]);
+	data_register = EP93XX_GPIO_REG(data_register_offset[gpio >> 3]);
 
 	local_irq_save(flags);
-	if (value == EP93XX_GPIO_HIGH) {
-		v = __raw_readb(data_register);
-		v |= 1 << (line & 7);
-		__raw_writeb(v, data_register);
-	} else if (value == EP93XX_GPIO_LOW) {
-		v = __raw_readb(data_register);
-		v &= ~(1 << (line & 7));
-		__raw_writeb(v, data_register);
-	}
+	v = __raw_readb(data_register);
+	if (value)
+		v |= 1 << (gpio & 7);
+	else
+		v &= ~(1 << (gpio & 7));
+	__raw_writeb(v, data_register);
 	local_irq_restore(flags);
 }
-EXPORT_SYMBOL(gpio_line_set);
+EXPORT_SYMBOL(gpio_set_value);
 
 
 /*************************************************************************
@@ -334,9 +359,9 @@ static int ep93xx_gpio_irq_type(unsigned int irq, unsigned int type)
 
 	line = irq - IRQ_EP93XX_GPIO(0);
 	if (line >= 0 && line < 16) {
-		gpio_line_config(line, GPIO_IN);
+		ep93xx_gpio_set_direction(line, GPIO_IN);
 	} else {
-		gpio_line_config(EP93XX_GPIO_LINE_F(line-16), GPIO_IN);
+		ep93xx_gpio_set_direction(EP93XX_GPIO_LINE_F(line-16), GPIO_IN);
 	}
 
 	port = line >> 3;
diff --git a/include/asm-arm/arch-ep93xx/gpio.h b/include/asm-arm/arch-ep93xx/gpio.h
index 1ee14a14cba0..fc1e57db5fac 100644
--- a/include/asm-arm/arch-ep93xx/gpio.h
+++ b/include/asm-arm/arch-ep93xx/gpio.h
@@ -5,16 +5,6 @@
 #ifndef __ASM_ARCH_GPIO_H
 #define __ASM_ARCH_GPIO_H
 
-#define GPIO_IN				0
-#define GPIO_OUT			1
-
-#define EP93XX_GPIO_LOW			0
-#define EP93XX_GPIO_HIGH		1
-
-extern void gpio_line_config(int line, int direction);
-extern int  gpio_line_get(int line);
-extern void gpio_line_set(int line, int value);
-
 /* GPIO port A.  */
 #define EP93XX_GPIO_LINE_A(x)		((x) + 0)
 #define EP93XX_GPIO_LINE_EGPIO0		EP93XX_GPIO_LINE_A(0)
@@ -103,5 +93,71 @@ extern void gpio_line_set(int line, int value);
 #define EP93XX_GPIO_LINE_DD6		EP93XX_GPIO_LINE_H(6)
 #define EP93XX_GPIO_LINE_DD7		EP93XX_GPIO_LINE_H(7)
 
+/* new generic GPIO API - see Documentation/gpio.txt */
+
+static inline int gpio_request(unsigned gpio, const char *label)
+{
+	if (gpio > EP93XX_GPIO_LINE_H(7))
+		return -EINVAL;
+	return 0;
+}
+
+static inline void gpio_free(unsigned gpio)
+{
+}
+
+int gpio_direction_input(unsigned gpio);
+int gpio_direction_output(unsigned gpio, int value);
+int gpio_get_value(unsigned gpio);
+void gpio_set_value(unsigned gpio, int value);
+
+#include <asm-generic/gpio.h> /* cansleep wrappers */
+
+/*
+ * Map GPIO A0..A7  (0..7)  to irq 64..71,
+ *          B0..B7  (7..15) to irq 72..79, and
+ *          F0..F7 (40..47) to irq 80..87.
+ */
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+	if (gpio <= EP93XX_GPIO_LINE_EGPIO15)
+		return 64 + gpio;
+
+	if (gpio >= EP93XX_GPIO_LINE_F(0) && gpio <= EP93XX_GPIO_LINE_F(7))
+		return 80 + (gpio - EP93XX_GPIO_LINE_F(0));
+
+	return -EINVAL;
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+	if (irq >= 64 && irq <= 79)
+		return irq - 64;
+
+	if (irq >= 80 && irq <= 87)
+		return (irq - 80) + EP93XX_GPIO_LINE_F(0);
+
+	return -EINVAL;
+}
+
+/* obsolete specific GPIO API */
+#define GPIO_IN				0
+#define GPIO_OUT			1
+
+#define EP93XX_GPIO_LOW			0
+#define EP93XX_GPIO_HIGH		1
+
+void __deprecated gpio_line_config(int line, int direction);
+
+static inline int  __deprecated gpio_line_get(int line)
+{
+	return gpio_get_value(line);
+}
+
+static inline void __deprecated gpio_line_set(int line, int value)
+{
+	gpio_set_value(line, value);
+}
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 7ca722533979d47563e75a40c86c405153818b83 Mon Sep 17 00:00:00 2001
From: Herbert Valerio Riedel <hvr@gnu.org>
Date: Mon, 26 Nov 2007 18:45:59 +0100
Subject: [ARM] 4669/1: ep93xx: simplify GPIO code and cleanups

This patch renumbers the (virtual) GPIO line numbering to have all
irq-capable gpio lines <= EP93XX_GPIO_LINE_MAX_IRQ by swapping the
port f range with the port c range; This simplifies code such as

 #define IRQ_EP93XX_GPIO(x)  (64 + (((x) + (((x) >> 2) & 8)) & 0x1f))

or

 if (line >= 0 && line < 16) {
    /* Port A/B */
 } else if (line >= 40 && line < 48) {
    /* Port F */
 }

considerably; in addition to the renumbering this patch also
introduces macro constants EP93XX_GPIO_LINE_MAX_IRQ and
EP93XX_GPIO_LINE_MAX, and replaces most magic numbers by those and
invocations of gpio_to_irq()/irq_to_gpio().

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-ep93xx/core.c        | 147 ++++++++++++++++++-------------------
 include/asm-arm/arch-ep93xx/gpio.h |  27 +++----
 include/asm-arm/arch-ep93xx/irqs.h |   6 --
 3 files changed, 82 insertions(+), 98 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 8a7340661377..58957d7a5763 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -157,35 +157,35 @@ static unsigned char gpio_int_enabled[3];
 static unsigned char gpio_int_type1[3];
 static unsigned char gpio_int_type2[3];
 
-static void update_gpio_int_params(int abf)
+/* Port ordering is: A B F */
+static const u8 int_type1_register_offset[3]	= { 0x90, 0xac, 0x4c };
+static const u8 int_type2_register_offset[3]	= { 0x94, 0xb0, 0x50 };
+static const u8 eoi_register_offset[3]		= { 0x98, 0xb4, 0x54 };
+static const u8 int_en_register_offset[3]	= { 0x9c, 0xb8, 0x5c };
+
+static void update_gpio_int_params(unsigned port)
 {
-	if (abf == 0) {
-		__raw_writeb(0, EP93XX_GPIO_A_INT_ENABLE);
-		__raw_writeb(gpio_int_type2[0], EP93XX_GPIO_A_INT_TYPE2);
-		__raw_writeb(gpio_int_type1[0], EP93XX_GPIO_A_INT_TYPE1);
-		__raw_writeb(gpio_int_unmasked[0] & gpio_int_enabled[0], EP93XX_GPIO_A_INT_ENABLE);
-	} else if (abf == 1) {
-		__raw_writeb(0, EP93XX_GPIO_B_INT_ENABLE);
-		__raw_writeb(gpio_int_type2[1], EP93XX_GPIO_B_INT_TYPE2);
-		__raw_writeb(gpio_int_type1[1], EP93XX_GPIO_B_INT_TYPE1);
-		__raw_writeb(gpio_int_unmasked[1] & gpio_int_enabled[1], EP93XX_GPIO_B_INT_ENABLE);
-	} else if (abf == 2) {
-		__raw_writeb(0, EP93XX_GPIO_F_INT_ENABLE);
-		__raw_writeb(gpio_int_type2[2], EP93XX_GPIO_F_INT_TYPE2);
-		__raw_writeb(gpio_int_type1[2], EP93XX_GPIO_F_INT_TYPE1);
-		__raw_writeb(gpio_int_unmasked[2] & gpio_int_enabled[2], EP93XX_GPIO_F_INT_ENABLE);
-	} else {
-		BUG();
-	}
-}
+	BUG_ON(port > 2);
 
+	__raw_writeb(0, EP93XX_GPIO_REG(int_en_register_offset[port]));
+
+	__raw_writeb(gpio_int_type2[port],
+		EP93XX_GPIO_REG(int_type2_register_offset[port]));
+
+	__raw_writeb(gpio_int_type1[port],
+		EP93XX_GPIO_REG(int_type1_register_offset[port]));
+
+	__raw_writeb(gpio_int_unmasked[port] & gpio_int_enabled[port],
+		EP93XX_GPIO_REG(int_en_register_offset[port]));
+}
 
-static unsigned char data_register_offset[8] = {
-	0x00, 0x04, 0x08, 0x0c, 0x20, 0x30, 0x38, 0x40,
+/* Port ordering is: A B F D E C G H */
+static const u8 data_register_offset[8] = {
+	0x00, 0x04, 0x30, 0x0c, 0x20, 0x08, 0x38, 0x40,
 };
 
-static unsigned char data_direction_register_offset[8] = {
-	0x10, 0x14, 0x18, 0x1c, 0x24, 0x34, 0x3c, 0x44,
+static const u8 data_direction_register_offset[8] = {
+	0x10, 0x14, 0x34, 0x1c, 0x24, 0x18, 0x3c, 0x44,
 };
 
 static void ep93xx_gpio_set_direction(unsigned line, int direction)
@@ -199,14 +199,10 @@ static void ep93xx_gpio_set_direction(unsigned line, int direction)
 
 	local_irq_save(flags);
 	if (direction == GPIO_OUT) {
-		if (line >= 0 && line < 16) {
-			/* Port A/B.  */
+		if (line >= 0 && line <= EP93XX_GPIO_LINE_MAX_IRQ) {
+			/* Port A/B/F */
 			gpio_int_unmasked[line >> 3] &= ~(1 << (line & 7));
 			update_gpio_int_params(line >> 3);
-		} else if (line >= 40 && line < 48) {
-			/* Port F.  */
-			gpio_int_unmasked[2] &= ~(1 << (line & 7));
-			update_gpio_int_params(2);
 		}
 
 		v = __raw_readb(data_direction_register);
@@ -228,7 +224,7 @@ EXPORT_SYMBOL(gpio_line_config);
 
 int gpio_direction_input(unsigned gpio)
 {
-	if (gpio > EP93XX_GPIO_LINE_H(7))
+	if (gpio > EP93XX_GPIO_LINE_MAX)
 		return -EINVAL;
 
 	ep93xx_gpio_set_direction(gpio, GPIO_IN);
@@ -239,7 +235,7 @@ EXPORT_SYMBOL(gpio_direction_input);
 
 int gpio_direction_output(unsigned gpio, int value)
 {
-	if (gpio > EP93XX_GPIO_LINE_H(7))
+	if (gpio > EP93XX_GPIO_LINE_MAX)
 		return -EINVAL;
 
 	gpio_set_value(gpio, value);
@@ -290,47 +286,50 @@ static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
 	status = __raw_readb(EP93XX_GPIO_A_INT_STATUS);
 	for (i = 0; i < 8; i++) {
 		if (status & (1 << i)) {
-			desc = irq_desc + IRQ_EP93XX_GPIO(0) + i;
-			desc_handle_irq(IRQ_EP93XX_GPIO(0) + i, desc);
+			int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_A(0)) + i;
+			desc = irq_desc + gpio_irq;
+			desc_handle_irq(gpio_irq, desc);
 		}
 	}
 
 	status = __raw_readb(EP93XX_GPIO_B_INT_STATUS);
 	for (i = 0; i < 8; i++) {
 		if (status & (1 << i)) {
-			desc = irq_desc + IRQ_EP93XX_GPIO(8) + i;
-			desc_handle_irq(IRQ_EP93XX_GPIO(8) + i, desc);
+			int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_B(0)) + i;
+			desc = irq_desc + gpio_irq;
+			desc_handle_irq(gpio_irq, desc);
 		}
 	}
 }
 
 static void ep93xx_gpio_f_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
-	int gpio_irq = IRQ_EP93XX_GPIO(16) + (((irq + 1) & 7) ^ 4);
+	/*
+	 * map discontiguous hw irq range to continous sw irq range:
+	 *
+	 *  IRQ_EP93XX_GPIO{0..7}MUX -> gpio_to_irq(EP93XX_GPIO_LINE_F({0..7})
+	 */
+	int port_f_idx = ((irq + 1) & 7) ^ 4; /* {19..22,47..50} -> {0..7} */
+	int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_F(0)) + port_f_idx;
 
 	desc_handle_irq(gpio_irq, irq_desc + gpio_irq);
 }
 
 static void ep93xx_gpio_irq_mask_ack(unsigned int irq)
 {
-	int line = irq - IRQ_EP93XX_GPIO(0);
+	int line = irq_to_gpio(irq);
 	int port = line >> 3;
+	int port_mask = 1 << (line & 7);
 
-	gpio_int_unmasked[port] &= ~(1 << (line & 7));
+	gpio_int_unmasked[port] &= ~port_mask;
 	update_gpio_int_params(port);
 
-	if (port == 0) {
-		__raw_writel(1 << (line & 7), EP93XX_GPIO_A_INT_ACK);
-	} else if (port == 1) {
-		__raw_writel(1 << (line & 7), EP93XX_GPIO_B_INT_ACK);
-	} else if (port == 2) {
-		__raw_writel(1 << (line & 7), EP93XX_GPIO_F_INT_ACK);
-	}
+	__raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
 }
 
 static void ep93xx_gpio_irq_mask(unsigned int irq)
 {
-	int line = irq - IRQ_EP93XX_GPIO(0);
+	int line = irq_to_gpio(irq);
 	int port = line >> 3;
 
 	gpio_int_unmasked[port] &= ~(1 << (line & 7));
@@ -339,7 +338,7 @@ static void ep93xx_gpio_irq_mask(unsigned int irq)
 
 static void ep93xx_gpio_irq_unmask(unsigned int irq)
 {
-	int line = irq - IRQ_EP93XX_GPIO(0);
+	int line = irq_to_gpio(irq);
 	int port = line >> 3;
 
 	gpio_int_unmasked[port] |= 1 << (line & 7);
@@ -354,37 +353,30 @@ static void ep93xx_gpio_irq_unmask(unsigned int irq)
  */
 static int ep93xx_gpio_irq_type(unsigned int irq, unsigned int type)
 {
-	int port;
-	int line;
+	const int gpio = irq_to_gpio(irq);
+	const int port = gpio >> 3;
+	const int port_mask = 1 << (gpio & 7);
 
-	line = irq - IRQ_EP93XX_GPIO(0);
-	if (line >= 0 && line < 16) {
-		ep93xx_gpio_set_direction(line, GPIO_IN);
-	} else {
-		ep93xx_gpio_set_direction(EP93XX_GPIO_LINE_F(line-16), GPIO_IN);
-	}
-
-	port = line >> 3;
-	line &= 7;
+	ep93xx_gpio_set_direction(gpio, GPIO_IN);
 
 	if (type & IRQT_RISING) {
-		gpio_int_enabled[port] |= 1 << line;
-		gpio_int_type1[port] |= 1 << line;
-		gpio_int_type2[port] |= 1 << line;
+		gpio_int_enabled[port] |= port_mask;
+		gpio_int_type1[port] |= port_mask;
+		gpio_int_type2[port] |= port_mask;
 	} else if (type & IRQT_FALLING) {
-		gpio_int_enabled[port] |= 1 << line;
-		gpio_int_type1[port] |= 1 << line;
-		gpio_int_type2[port] &= ~(1 << line);
+		gpio_int_enabled[port] |= port_mask;
+		gpio_int_type1[port] |= port_mask;
+		gpio_int_type2[port] &= ~port_mask;
 	} else if (type & IRQT_HIGH) {
-		gpio_int_enabled[port] |= 1 << line;
-		gpio_int_type1[port] &= ~(1 << line);
-		gpio_int_type2[port] |= 1 << line;
+		gpio_int_enabled[port] |= port_mask;
+		gpio_int_type1[port] &= ~port_mask;
+		gpio_int_type2[port] |= port_mask;
 	} else if (type & IRQT_LOW) {
-		gpio_int_enabled[port] |= 1 << line;
-		gpio_int_type1[port] &= ~(1 << line);
-		gpio_int_type2[port] &= ~(1 << line);
+		gpio_int_enabled[port] |= port_mask;
+		gpio_int_type1[port] &= ~port_mask;
+		gpio_int_type2[port] &= ~port_mask;
 	} else {
-		gpio_int_enabled[port] &= ~(1 << line);
+		gpio_int_enabled[port] &= ~port_mask;
 	}
 	update_gpio_int_params(port);
 
@@ -402,15 +394,16 @@ static struct irq_chip ep93xx_gpio_irq_chip = {
 
 void __init ep93xx_init_irq(void)
 {
-	int irq;
+	int gpio_irq;
 
 	vic_init((void *)EP93XX_VIC1_BASE, 0, EP93XX_VIC1_VALID_IRQ_MASK);
 	vic_init((void *)EP93XX_VIC2_BASE, 32, EP93XX_VIC2_VALID_IRQ_MASK);
 
-	for (irq = IRQ_EP93XX_GPIO(0); irq <= IRQ_EP93XX_GPIO(23); irq++) {
-		set_irq_chip(irq, &ep93xx_gpio_irq_chip);
-		set_irq_handler(irq, handle_level_irq);
-		set_irq_flags(irq, IRQF_VALID);
+	for (gpio_irq = gpio_to_irq(0);
+	     gpio_irq <= gpio_to_irq(EP93XX_GPIO_LINE_MAX_IRQ); ++gpio_irq) {
+		set_irq_chip(gpio_irq, &ep93xx_gpio_irq_chip);
+		set_irq_handler(gpio_irq, handle_level_irq);
+		set_irq_flags(gpio_irq, IRQF_VALID);
 	}
 
 	set_irq_chained_handler(IRQ_EP93XX_GPIO_AB, ep93xx_gpio_ab_irq_handler);
diff --git a/include/asm-arm/arch-ep93xx/gpio.h b/include/asm-arm/arch-ep93xx/gpio.h
index fc1e57db5fac..cebb64be7e4b 100644
--- a/include/asm-arm/arch-ep93xx/gpio.h
+++ b/include/asm-arm/arch-ep93xx/gpio.h
@@ -28,7 +28,7 @@
 #define EP93XX_GPIO_LINE_EGPIO15	EP93XX_GPIO_LINE_B(7)
 
 /* GPIO port C.  */
-#define EP93XX_GPIO_LINE_C(x)		((x) + 16)
+#define EP93XX_GPIO_LINE_C(x)		((x) + 40)
 #define EP93XX_GPIO_LINE_ROW0		EP93XX_GPIO_LINE_C(0)
 #define EP93XX_GPIO_LINE_ROW1		EP93XX_GPIO_LINE_C(1)
 #define EP93XX_GPIO_LINE_ROW2		EP93XX_GPIO_LINE_C(2)
@@ -61,7 +61,7 @@
 #define EP93XX_GPIO_LINE_IDEDA2		EP93XX_GPIO_LINE_E(7)
 
 /* GPIO port F.  */
-#define EP93XX_GPIO_LINE_F(x)		((x) + 40)
+#define EP93XX_GPIO_LINE_F(x)		((x) + 16)
 #define EP93XX_GPIO_LINE_WP		EP93XX_GPIO_LINE_F(0)
 #define EP93XX_GPIO_LINE_MCCD1		EP93XX_GPIO_LINE_F(1)
 #define EP93XX_GPIO_LINE_MCCD2		EP93XX_GPIO_LINE_F(2)
@@ -93,11 +93,17 @@
 #define EP93XX_GPIO_LINE_DD6		EP93XX_GPIO_LINE_H(6)
 #define EP93XX_GPIO_LINE_DD7		EP93XX_GPIO_LINE_H(7)
 
+/* maximum value for gpio line identifiers */
+#define EP93XX_GPIO_LINE_MAX		EP93XX_GPIO_LINE_H(7)
+
+/* maximum value for irq capable line identifiers */
+#define EP93XX_GPIO_LINE_MAX_IRQ	EP93XX_GPIO_LINE_F(7)
+
 /* new generic GPIO API - see Documentation/gpio.txt */
 
 static inline int gpio_request(unsigned gpio, const char *label)
 {
-	if (gpio > EP93XX_GPIO_LINE_H(7))
+	if (gpio > EP93XX_GPIO_LINE_MAX)
 		return -EINVAL;
 	return 0;
 }
@@ -116,29 +122,20 @@ void gpio_set_value(unsigned gpio, int value);
 /*
  * Map GPIO A0..A7  (0..7)  to irq 64..71,
  *          B0..B7  (7..15) to irq 72..79, and
- *          F0..F7 (40..47) to irq 80..87.
+ *          F0..F7 (16..24) to irq 80..87.
  */
 
 static inline int gpio_to_irq(unsigned gpio)
 {
-	if (gpio <= EP93XX_GPIO_LINE_EGPIO15)
+	if (gpio <= EP93XX_GPIO_LINE_MAX_IRQ)
 		return 64 + gpio;
 
-	if (gpio >= EP93XX_GPIO_LINE_F(0) && gpio <= EP93XX_GPIO_LINE_F(7))
-		return 80 + (gpio - EP93XX_GPIO_LINE_F(0));
-
 	return -EINVAL;
 }
 
 static inline int irq_to_gpio(unsigned irq)
 {
-	if (irq >= 64 && irq <= 79)
-		return irq - 64;
-
-	if (irq >= 80 && irq <= 87)
-		return (irq - 80) + EP93XX_GPIO_LINE_F(0);
-
-	return -EINVAL;
+	return irq - gpio_to_irq(0);
 }
 
 /* obsolete specific GPIO API */
diff --git a/include/asm-arm/arch-ep93xx/irqs.h b/include/asm-arm/arch-ep93xx/irqs.h
index 2a8c63638c5e..53d4a68bfc88 100644
--- a/include/asm-arm/arch-ep93xx/irqs.h
+++ b/include/asm-arm/arch-ep93xx/irqs.h
@@ -67,12 +67,6 @@
 #define IRQ_EP93XX_SAI			60
 #define EP93XX_VIC2_VALID_IRQ_MASK	0x1fffffff
 
-/*
- * Map GPIO A0..A7 to irq 64..71, B0..B7 to 72..79, and
- * F0..F7 to 80..87.
- */
-#define IRQ_EP93XX_GPIO(x)		(64 + (((x) + (((x) >> 2) & 8)) & 0x1f))
-
 #define NR_EP93XX_IRQS			(64 + 24)
 
 #define EP93XX_BOARD_IRQ(x)		(NR_EP93XX_IRQS + (x))
-- 
cgit v1.2.3-59-g8ed1b


From 3c9a071d77e007464952a2d41b6686d98eb3f0b8 Mon Sep 17 00:00:00 2001
From: Herbert Valerio Riedel <hvr@gnu.org>
Date: Mon, 26 Nov 2007 18:49:08 +0100
Subject: [ARM] 4670/1: ep93xx: implement IRQT_BOTHEDGE gpio irq sense type

Having a both-edge sensitive irq trigger type is required for the
generic gpio-keys input driver; alas the ep93xx does not support
both-edge gpio triggers in hardware, so this patch implements them by
switching edge polarity on each triggered interrupt.  This is the same
approach as taken by the Orion SoC both-edge gpio irq support
implementation.

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-ep93xx/core.c | 64 +++++++++++++++++++++++++++++++++++++--------
 1 file changed, 53 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 58957d7a5763..2788da06417c 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -3,6 +3,7 @@
  * Core routines for Cirrus EP93xx chips.
  *
  * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
+ * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
  *
  * Thanks go to Michael Burian and Ray Lehtiniemi for their key
  * role in the ep93xx linux community.
@@ -315,12 +316,29 @@ static void ep93xx_gpio_f_irq_handler(unsigned int irq, struct irq_desc *desc)
 	desc_handle_irq(gpio_irq, irq_desc + gpio_irq);
 }
 
+static void ep93xx_gpio_irq_ack(unsigned int irq)
+{
+	int line = irq_to_gpio(irq);
+	int port = line >> 3;
+	int port_mask = 1 << (line & 7);
+
+	if ((irq_desc[irq].status & IRQ_TYPE_SENSE_MASK) == IRQT_BOTHEDGE) {
+		gpio_int_type2[port] ^= port_mask; /* switch edge direction */
+		update_gpio_int_params(port);
+	}
+
+	__raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
+}
+
 static void ep93xx_gpio_irq_mask_ack(unsigned int irq)
 {
 	int line = irq_to_gpio(irq);
 	int port = line >> 3;
 	int port_mask = 1 << (line & 7);
 
+	if ((irq_desc[irq].status & IRQ_TYPE_SENSE_MASK) == IRQT_BOTHEDGE)
+		gpio_int_type2[port] ^= port_mask; /* switch edge direction */
+
 	gpio_int_unmasked[port] &= ~port_mask;
 	update_gpio_int_params(port);
 
@@ -353,31 +371,54 @@ static void ep93xx_gpio_irq_unmask(unsigned int irq)
  */
 static int ep93xx_gpio_irq_type(unsigned int irq, unsigned int type)
 {
+	struct irq_desc *desc = irq_desc + irq;
 	const int gpio = irq_to_gpio(irq);
 	const int port = gpio >> 3;
 	const int port_mask = 1 << (gpio & 7);
 
 	ep93xx_gpio_set_direction(gpio, GPIO_IN);
 
-	if (type & IRQT_RISING) {
-		gpio_int_enabled[port] |= port_mask;
+	switch (type) {
+	case IRQT_RISING:
 		gpio_int_type1[port] |= port_mask;
 		gpio_int_type2[port] |= port_mask;
-	} else if (type & IRQT_FALLING) {
-		gpio_int_enabled[port] |= port_mask;
+		desc->handle_irq = handle_edge_irq;
+		break;
+	case IRQT_FALLING:
 		gpio_int_type1[port] |= port_mask;
 		gpio_int_type2[port] &= ~port_mask;
-	} else if (type & IRQT_HIGH) {
-		gpio_int_enabled[port] |= port_mask;
+		desc->handle_irq = handle_edge_irq;
+		break;
+	case IRQT_HIGH:
 		gpio_int_type1[port] &= ~port_mask;
 		gpio_int_type2[port] |= port_mask;
-	} else if (type & IRQT_LOW) {
-		gpio_int_enabled[port] |= port_mask;
+		desc->handle_irq = handle_level_irq;
+		break;
+	case IRQT_LOW:
 		gpio_int_type1[port] &= ~port_mask;
 		gpio_int_type2[port] &= ~port_mask;
-	} else {
-		gpio_int_enabled[port] &= ~port_mask;
+		desc->handle_irq = handle_level_irq;
+		break;
+	case IRQT_BOTHEDGE:
+		gpio_int_type1[port] |= port_mask;
+		/* set initial polarity based on current input level */
+		if (gpio_get_value(gpio))
+			gpio_int_type2[port] &= ~port_mask; /* falling */
+		else
+			gpio_int_type2[port] |= port_mask; /* rising */
+		desc->handle_irq = handle_edge_irq;
+		break;
+	default:
+		pr_err("ep93xx: failed to set irq type %d for gpio %d\n",
+		       type, gpio);
+		return -EINVAL;
 	}
+
+	gpio_int_enabled[port] |= port_mask;
+
+	desc->status &= ~IRQ_TYPE_SENSE_MASK;
+	desc->status |= type & IRQ_TYPE_SENSE_MASK;
+
 	update_gpio_int_params(port);
 
 	return 0;
@@ -385,7 +426,8 @@ static int ep93xx_gpio_irq_type(unsigned int irq, unsigned int type)
 
 static struct irq_chip ep93xx_gpio_irq_chip = {
 	.name		= "GPIO",
-	.ack		= ep93xx_gpio_irq_mask_ack,
+	.ack		= ep93xx_gpio_irq_ack,
+	.mask_ack	= ep93xx_gpio_irq_mask_ack,
 	.mask		= ep93xx_gpio_irq_mask,
 	.unmask		= ep93xx_gpio_irq_unmask,
 	.set_type	= ep93xx_gpio_irq_type,
-- 
cgit v1.2.3-59-g8ed1b


From 6331acd78f7916db16ec20b50d7838bd4944cd27 Mon Sep 17 00:00:00 2001
From: Herbert Valerio Riedel <hvr@gnu.org>
Date: Mon, 26 Nov 2007 18:50:42 +0100
Subject: [ARM] 4671/1: ep93xx: remove obsolete gpio_line_* operations

With the new GPIO methods in place the old gpio_line_* methods are redundant,
so this patch finally removes the old legacy gpio_line_* wrappers.

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-ep93xx/core.c        |  9 +++------
 include/asm-arm/arch-ep93xx/gpio.h | 19 -------------------
 2 files changed, 3 insertions(+), 25 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 2788da06417c..4cb3f742a6a1 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -189,6 +189,9 @@ static const u8 data_direction_register_offset[8] = {
 	0x10, 0x14, 0x34, 0x1c, 0x24, 0x18, 0x3c, 0x44,
 };
 
+#define GPIO_IN		0
+#define GPIO_OUT	1
+
 static void ep93xx_gpio_set_direction(unsigned line, int direction)
 {
 	unsigned int data_direction_register;
@@ -217,12 +220,6 @@ static void ep93xx_gpio_set_direction(unsigned line, int direction)
 	local_irq_restore(flags);
 }
 
-void __deprecated gpio_line_config(int line, int direction)
-{
-	ep93xx_gpio_set_direction(line, direction);
-}
-EXPORT_SYMBOL(gpio_line_config);
-
 int gpio_direction_input(unsigned gpio)
 {
 	if (gpio > EP93XX_GPIO_LINE_MAX)
diff --git a/include/asm-arm/arch-ep93xx/gpio.h b/include/asm-arm/arch-ep93xx/gpio.h
index cebb64be7e4b..9b1864bbd9a8 100644
--- a/include/asm-arm/arch-ep93xx/gpio.h
+++ b/include/asm-arm/arch-ep93xx/gpio.h
@@ -138,23 +138,4 @@ static inline int irq_to_gpio(unsigned irq)
 	return irq - gpio_to_irq(0);
 }
 
-/* obsolete specific GPIO API */
-#define GPIO_IN				0
-#define GPIO_OUT			1
-
-#define EP93XX_GPIO_LOW			0
-#define EP93XX_GPIO_HIGH		1
-
-void __deprecated gpio_line_config(int line, int direction);
-
-static inline int  __deprecated gpio_line_get(int line)
-{
-	return gpio_get_value(line);
-}
-
-static inline void __deprecated gpio_line_set(int line, int value)
-{
-	gpio_set_value(line, value);
-}
-
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From ecdc902bf87e57e47efb6cab3999d64bfe3b2dfd Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Thu, 13 Dec 2007 00:20:05 +0100
Subject: [ARM] 4708/1: iop: update defconfigs for 2.6.24

* iop13xx, iop33x, iop32x: re-enable the IOP_ADMA driver by default
* iop32x: enable RS5C372 and RTC_CLASS support

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/configs/iop13xx_defconfig | 156 +++++++++++++---------------
 arch/arm/configs/iop32x_defconfig  | 207 ++++++++++++++++++++++---------------
 arch/arm/configs/iop33x_defconfig  | 154 +++++++++++++--------------
 3 files changed, 267 insertions(+), 250 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/configs/iop13xx_defconfig b/arch/arm/configs/iop13xx_defconfig
index add03c9e5553..988b4d13e76f 100644
--- a/arch/arm/configs/iop13xx_defconfig
+++ b/arch/arm/configs/iop13xx_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22
-# Thu Jul 19 15:57:52 2007
+# Linux kernel version: 2.6.24-rc5
+# Wed Dec 12 16:11:03 2007
 #
 CONFIG_ARM=y
 CONFIG_SYS_SUPPORTS_APM_EMULATION=y
@@ -26,15 +26,11 @@ CONFIG_VECTORS_BASE=0xffff0000
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
 #
-# Code maturity level options
+# General setup
 #
 CONFIG_EXPERIMENTAL=y
 CONFIG_BROKEN_ON_SMP=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
 CONFIG_LOCALVERSION=""
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SWAP=y
@@ -45,10 +41,15 @@ CONFIG_BSD_PROCESS_ACCT=y
 # CONFIG_BSD_PROCESS_ACCT_V3 is not set
 # CONFIG_TASKSTATS is not set
 # CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
 # CONFIG_AUDIT is not set
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
 CONFIG_SYSFS_DEPRECATED=y
 # CONFIG_RELAY is not set
 CONFIG_BLK_DEV_INITRD=y
@@ -69,7 +70,6 @@ CONFIG_FUTEX=y
 CONFIG_ANON_INODES=y
 CONFIG_EPOLL=y
 CONFIG_SIGNALFD=y
-CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
@@ -130,6 +130,7 @@ CONFIG_ARCH_IOP13XX=y
 # CONFIG_ARCH_L7200 is not set
 # CONFIG_ARCH_KS8695 is not set
 # CONFIG_ARCH_NS9XXX is not set
+# CONFIG_ARCH_MXC is not set
 # CONFIG_ARCH_PNX4008 is not set
 # CONFIG_ARCH_PXA is not set
 # CONFIG_ARCH_RPC is not set
@@ -151,9 +152,12 @@ CONFIG_MACH_IQ81340SC=y
 CONFIG_MACH_IQ81340MC=y
 
 #
-# IOP13XX IMU Support
+# Boot options
+#
+
+#
+# Power management
 #
-# CONFIG_IOP_IMU is not set
 CONFIG_PLAT_IOP=y
 
 #
@@ -185,10 +189,7 @@ CONFIG_PCI=y
 CONFIG_PCI_SYSCALL=y
 CONFIG_ARCH_SUPPORTS_MSI=y
 # CONFIG_PCI_MSI is not set
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
+CONFIG_PCI_LEGACY=y
 # CONFIG_PCCARD is not set
 
 #
@@ -207,6 +208,7 @@ CONFIG_FLATMEM_MANUAL=y
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
 # CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4096
 # CONFIG_RESOURCES_64BIT is not set
 CONFIG_ZONE_DMA_FLAG=1
@@ -246,6 +248,7 @@ CONFIG_BINFMT_AOUT=y
 # Power management options
 #
 # CONFIG_PM is not set
+CONFIG_SUSPEND_UP_POSSIBLE=y
 
 #
 # Networking
@@ -285,6 +288,7 @@ CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_XFRM_MODE_TRANSPORT=y
 CONFIG_INET_XFRM_MODE_TUNNEL=y
 CONFIG_INET_XFRM_MODE_BEET=y
+# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=y
 CONFIG_INET_TCP_DIAG=y
 # CONFIG_TCP_CONG_ADVANCED is not set
@@ -324,10 +328,6 @@ CONFIG_IPV6=y
 # CONFIG_LAPB is not set
 # CONFIG_ECONET is not set
 # CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
 # CONFIG_NET_SCHED is not set
 
 #
@@ -356,6 +356,7 @@ CONFIG_IPV6=y
 #
 # Generic Driver Options
 #
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_STANDALONE=y
 CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_FW_LOADER is not set
@@ -383,6 +384,7 @@ CONFIG_MTD_BLOCK=y
 # CONFIG_INFTL is not set
 # CONFIG_RFD_FTL is not set
 # CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
 
 #
 # RAM/ROM/Flash chip drivers
@@ -423,6 +425,7 @@ CONFIG_MTD_PHYSMAP_START=0xfa000000
 CONFIG_MTD_PHYSMAP_LEN=0x0
 CONFIG_MTD_PHYSMAP_BANKWIDTH=2
 # CONFIG_MTD_ARM_INTEGRATOR is not set
+# CONFIG_MTD_INTEL_VR_NOR is not set
 # CONFIG_MTD_PLATRAM is not set
 
 #
@@ -463,6 +466,11 @@ CONFIG_BLK_DEV_RAM_SIZE=8192
 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_PHANTOM is not set
+# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_TIFM_CORE is not set
 
 #
 # SCSI device support
@@ -499,12 +507,9 @@ CONFIG_SCSI_WAIT_SCAN=m
 # CONFIG_SCSI_SPI_ATTRS is not set
 # CONFIG_SCSI_FC_ATTRS is not set
 CONFIG_SCSI_ISCSI_ATTRS=y
-CONFIG_SCSI_SAS_ATTRS=y
 # CONFIG_SCSI_SAS_LIBSAS is not set
-
-#
-# SCSI low-level drivers
-#
+# CONFIG_SCSI_SRP_ATTRS is not set
+CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_ISCSI_TCP is not set
 # CONFIG_BLK_DEV_3W_XXXX_RAID is not set
 # CONFIG_SCSI_3W_9XXX is not set
@@ -515,6 +520,7 @@ CONFIG_SCSI_SAS_ATTRS=y
 # CONFIG_SCSI_AIC79XX is not set
 # CONFIG_SCSI_AIC94XX is not set
 # CONFIG_SCSI_DPT_I2O is not set
+# CONFIG_SCSI_ADVANSYS is not set
 # CONFIG_SCSI_ARCMSR is not set
 # CONFIG_MEGARAID_NEWGEN is not set
 # CONFIG_MEGARAID_LEGACY is not set
@@ -555,14 +561,8 @@ CONFIG_BLK_DEV_DM=y
 # CONFIG_DM_ZERO is not set
 # CONFIG_DM_MULTIPATH is not set
 # CONFIG_DM_DELAY is not set
-
-#
-# Fusion MPT device support
-#
+# CONFIG_DM_UEVENT is not set
 # CONFIG_FUSION is not set
-# CONFIG_FUSION_SPI is not set
-# CONFIG_FUSION_FC is not set
-# CONFIG_FUSION_SAS is not set
 
 #
 # IEEE 1394 (FireWire) support
@@ -577,6 +577,8 @@ CONFIG_NETDEVICES=y
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_IP1000 is not set
 # CONFIG_ARCNET is not set
 # CONFIG_NET_ETHERNET is not set
 CONFIG_NETDEV_1000=y
@@ -585,6 +587,7 @@ CONFIG_NETDEV_1000=y
 CONFIG_E1000=y
 CONFIG_E1000_NAPI=y
 # CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
+# CONFIG_E1000E is not set
 # CONFIG_NS83820 is not set
 # CONFIG_HAMACHI is not set
 # CONFIG_YELLOWFIN is not set
@@ -592,6 +595,7 @@ CONFIG_E1000_NAPI=y
 # CONFIG_SIS190 is not set
 # CONFIG_SKGE is not set
 # CONFIG_SKY2 is not set
+# CONFIG_SK98LIN is not set
 # CONFIG_VIA_VELOCITY is not set
 # CONFIG_TIGON3 is not set
 # CONFIG_BNX2 is not set
@@ -600,11 +604,14 @@ CONFIG_E1000_NAPI=y
 CONFIG_NETDEV_10000=y
 # CONFIG_CHELSIO_T1 is not set
 # CONFIG_CHELSIO_T3 is not set
+# CONFIG_IXGBE is not set
 # CONFIG_IXGB is not set
 # CONFIG_S2IO is not set
 # CONFIG_MYRI10GE is not set
 # CONFIG_NETXEN_NIC is not set
+# CONFIG_NIU is not set
 # CONFIG_MLX4_CORE is not set
+# CONFIG_TEHUTI is not set
 # CONFIG_TR is not set
 
 #
@@ -639,7 +646,6 @@ CONFIG_INPUT_MOUSEDEV=y
 CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
 # CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
 # CONFIG_INPUT_EVDEV is not set
 # CONFIG_INPUT_EVBUG is not set
 
@@ -688,12 +694,10 @@ CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
 CONFIG_HW_RANDOM=y
 # CONFIG_NVRAM is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set
-# CONFIG_DRM is not set
 # CONFIG_RAW_DRIVER is not set
 # CONFIG_TCG_TPM is not set
 CONFIG_DEVPORT=y
@@ -758,9 +762,9 @@ CONFIG_I2C_IOP3XX=y
 # CONFIG_SPI is not set
 # CONFIG_SPI_MASTER is not set
 # CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
 CONFIG_HWMON=y
 # CONFIG_HWMON_VID is not set
-# CONFIG_SENSORS_ABITUGURU is not set
 # CONFIG_SENSORS_AD7418 is not set
 # CONFIG_SENSORS_ADM1021 is not set
 # CONFIG_SENSORS_ADM1025 is not set
@@ -768,12 +772,13 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_ADM1029 is not set
 # CONFIG_SENSORS_ADM1031 is not set
 # CONFIG_SENSORS_ADM9240 is not set
-# CONFIG_SENSORS_ASB100 is not set
+# CONFIG_SENSORS_ADT7470 is not set
 # CONFIG_SENSORS_ATXP1 is not set
 # CONFIG_SENSORS_DS1621 is not set
+# CONFIG_SENSORS_I5K_AMB is not set
 # CONFIG_SENSORS_F71805F is not set
-# CONFIG_SENSORS_FSCHER is not set
-# CONFIG_SENSORS_FSCPOS is not set
+# CONFIG_SENSORS_F71882FG is not set
+# CONFIG_SENSORS_F75375S is not set
 # CONFIG_SENSORS_GL518SM is not set
 # CONFIG_SENSORS_GL520SM is not set
 # CONFIG_SENSORS_IT87 is not set
@@ -787,14 +792,17 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_LM87 is not set
 # CONFIG_SENSORS_LM90 is not set
 # CONFIG_SENSORS_LM92 is not set
+# CONFIG_SENSORS_LM93 is not set
 # CONFIG_SENSORS_MAX1619 is not set
 # CONFIG_SENSORS_MAX6650 is not set
 # CONFIG_SENSORS_PC87360 is not set
 # CONFIG_SENSORS_PC87427 is not set
 # CONFIG_SENSORS_SIS5595 is not set
+# CONFIG_SENSORS_DME1737 is not set
 # CONFIG_SENSORS_SMSC47M1 is not set
 # CONFIG_SENSORS_SMSC47M192 is not set
 # CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_THMC50 is not set
 # CONFIG_SENSORS_VIA686A is not set
 # CONFIG_SENSORS_VT1211 is not set
 # CONFIG_SENSORS_VT8231 is not set
@@ -806,29 +814,18 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_W83627HF is not set
 # CONFIG_SENSORS_W83627EHF is not set
 # CONFIG_HWMON_DEBUG_CHIP is not set
-CONFIG_MISC_DEVICES=y
-# CONFIG_PHANTOM is not set
-# CONFIG_EEPROM_93CX6 is not set
-# CONFIG_SGI_IOC4 is not set
-# CONFIG_TIFM_CORE is not set
-
-#
-# Multifunction device drivers
-#
-# CONFIG_MFD_SM501 is not set
-
-#
-# LED devices
-#
-# CONFIG_NEW_LEDS is not set
+# CONFIG_WATCHDOG is not set
 
 #
-# LED drivers
+# Sonics Silicon Backplane
 #
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
 
 #
-# LED Triggers
+# Multifunction device drivers
 #
+# CONFIG_MFD_SM501 is not set
 
 #
 # Multimedia devices
@@ -840,14 +837,16 @@ CONFIG_DAB=y
 #
 # Graphics support
 #
+# CONFIG_DRM is not set
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
 # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
 #
 # Display device support
 #
 # CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_VGASTATE is not set
-# CONFIG_FB is not set
 
 #
 # Console display driver support
@@ -862,6 +861,7 @@ CONFIG_DUMMY_CONSOLE=y
 CONFIG_HID_SUPPORT=y
 CONFIG_HID=y
 # CONFIG_HID_DEBUG is not set
+# CONFIG_HIDRAW is not set
 CONFIG_USB_SUPPORT=y
 CONFIG_USB_ARCH_HAS_HCD=y
 CONFIG_USB_ARCH_HAS_OHCI=y
@@ -877,16 +877,15 @@ CONFIG_USB_ARCH_HAS_EHCI=y
 #
 # CONFIG_USB_GADGET is not set
 # CONFIG_MMC is not set
-
-#
-# Real Time Clock
-#
+# CONFIG_NEW_LEDS is not set
 CONFIG_RTC_LIB=y
 # CONFIG_RTC_CLASS is not set
+CONFIG_DMADEVICES=y
 
 #
-# DMA Engine support
+# DMA Devices
 #
+CONFIG_INTEL_IOP_ADMA=y
 CONFIG_DMA_ENGINE=y
 
 #
@@ -894,12 +893,6 @@ CONFIG_DMA_ENGINE=y
 #
 # CONFIG_NET_DMA is not set
 
-#
-# DMA Devices
-#
-# CONFIG_INTEL_IOATDMA is not set
-CONFIG_INTEL_IOP_ADMA=y
-
 #
 # File systems
 #
@@ -912,7 +905,6 @@ CONFIG_EXT3_FS_XATTR=y
 # CONFIG_EXT3_FS_SECURITY is not set
 # CONFIG_EXT4DEV_FS is not set
 CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
 CONFIG_FS_MBCACHE=y
 # CONFIG_REISERFS_FS is not set
 # CONFIG_JFS_FS is not set
@@ -952,7 +944,6 @@ CONFIG_SYSFS=y
 CONFIG_TMPFS=y
 # CONFIG_TMPFS_POSIX_ACL is not set
 # CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
 # CONFIG_CONFIGFS_FS is not set
 
 #
@@ -969,10 +960,12 @@ CONFIG_ECRYPT_FS=y
 CONFIG_JFFS2_FS=y
 CONFIG_JFFS2_FS_DEBUG=0
 CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
 # CONFIG_JFFS2_SUMMARY is not set
 # CONFIG_JFFS2_FS_XATTR is not set
 # CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
 CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS2_LZO is not set
 CONFIG_JFFS2_RTIME=y
 # CONFIG_JFFS2_RUBIN is not set
 CONFIG_CRAMFS=y
@@ -981,10 +974,7 @@ CONFIG_CRAMFS=y
 # CONFIG_QNX4FS_FS is not set
 # CONFIG_SYSV_FS is not set
 # CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
+CONFIG_NETWORK_FILESYSTEMS=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V3=y
 # CONFIG_NFS_V3_ACL is not set
@@ -1037,10 +1027,6 @@ CONFIG_MSDOS_PARTITION=y
 # CONFIG_KARMA_PARTITION is not set
 # CONFIG_EFI_PARTITION is not set
 # CONFIG_SYSV68_PARTITION is not set
-
-#
-# Native Language Support
-#
 CONFIG_NLS=y
 CONFIG_NLS_DEFAULT="iso8859-1"
 # CONFIG_NLS_CODEPAGE_437 is not set
@@ -1081,21 +1067,16 @@ CONFIG_NLS_DEFAULT="iso8859-1"
 # CONFIG_NLS_KOI8_R is not set
 # CONFIG_NLS_KOI8_U is not set
 # CONFIG_NLS_UTF8 is not set
-
-#
-# Distributed Lock Manager
-#
 # CONFIG_DLM is not set
-
-#
-# Profiling support
-#
+CONFIG_INSTRUMENTATION=y
 # CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
 
 #
 # Kernel hacking
 #
 # CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
 CONFIG_ENABLE_MUST_CHECK=y
 # CONFIG_MAGIC_SYSRQ is not set
 # CONFIG_UNUSED_SYMBOLS is not set
@@ -1104,6 +1085,7 @@ CONFIG_ENABLE_MUST_CHECK=y
 # CONFIG_DEBUG_KERNEL is not set
 CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_FRAME_POINTER=y
+# CONFIG_SAMPLES is not set
 CONFIG_DEBUG_USER=y
 
 #
@@ -1112,6 +1094,7 @@ CONFIG_DEBUG_USER=y
 CONFIG_KEYS=y
 CONFIG_KEYS_DEBUG_PROC_KEYS=y
 # CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
 CONFIG_XOR_BLOCKS=y
 CONFIG_ASYNC_CORE=y
 CONFIG_ASYNC_MEMCPY=y
@@ -1136,6 +1119,7 @@ CONFIG_CRYPTO_ECB=y
 CONFIG_CRYPTO_CBC=y
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_LRW=y
+# CONFIG_CRYPTO_XTS is not set
 # CONFIG_CRYPTO_CRYPTD is not set
 CONFIG_CRYPTO_DES=y
 # CONFIG_CRYPTO_FCRYPT is not set
@@ -1150,11 +1134,13 @@ CONFIG_CRYPTO_TEA=y
 CONFIG_CRYPTO_ARC4=y
 CONFIG_CRYPTO_KHAZAD=y
 CONFIG_CRYPTO_ANUBIS=y
+# CONFIG_CRYPTO_SEED is not set
 CONFIG_CRYPTO_DEFLATE=y
 CONFIG_CRYPTO_MICHAEL_MIC=y
 CONFIG_CRYPTO_CRC32C=y
 # CONFIG_CRYPTO_CAMELLIA is not set
 # CONFIG_CRYPTO_TEST is not set
+# CONFIG_CRYPTO_AUTHENC is not set
 CONFIG_CRYPTO_HW=y
 
 #
diff --git a/arch/arm/configs/iop32x_defconfig b/arch/arm/configs/iop32x_defconfig
index 027aef22b4d1..83f40d4041a6 100644
--- a/arch/arm/configs/iop32x_defconfig
+++ b/arch/arm/configs/iop32x_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22
-# Thu Jul 19 16:00:36 2007
+# Linux kernel version: 2.6.24-rc5
+# Wed Dec 12 15:49:08 2007
 #
 CONFIG_ARM=y
 CONFIG_SYS_SUPPORTS_APM_EMULATION=y
@@ -26,15 +26,11 @@ CONFIG_VECTORS_BASE=0xffff0000
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
 #
-# Code maturity level options
+# General setup
 #
 CONFIG_EXPERIMENTAL=y
 CONFIG_BROKEN_ON_SMP=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
 CONFIG_LOCALVERSION=""
 CONFIG_LOCALVERSION_AUTO=y
 CONFIG_SWAP=y
@@ -45,9 +41,14 @@ CONFIG_BSD_PROCESS_ACCT=y
 # CONFIG_BSD_PROCESS_ACCT_V3 is not set
 # CONFIG_TASKSTATS is not set
 # CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
 # CONFIG_AUDIT is not set
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
 CONFIG_SYSFS_DEPRECATED=y
 # CONFIG_RELAY is not set
 CONFIG_BLK_DEV_INITRD=y
@@ -69,7 +70,6 @@ CONFIG_FUTEX=y
 CONFIG_ANON_INODES=y
 CONFIG_EPOLL=y
 CONFIG_SIGNALFD=y
-CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
@@ -130,6 +130,7 @@ CONFIG_ARCH_IOP32X=y
 # CONFIG_ARCH_L7200 is not set
 # CONFIG_ARCH_KS8695 is not set
 # CONFIG_ARCH_NS9XXX is not set
+# CONFIG_ARCH_MXC is not set
 # CONFIG_ARCH_PNX4008 is not set
 # CONFIG_ARCH_PXA is not set
 # CONFIG_ARCH_RPC is not set
@@ -153,6 +154,15 @@ CONFIG_ARCH_IQ80321=y
 CONFIG_ARCH_IQ31244=y
 CONFIG_MACH_N2100=y
 CONFIG_IOP3XX_ATU=y
+# CONFIG_MACH_EM7210 is not set
+
+#
+# Boot options
+#
+
+#
+# Power management
+#
 CONFIG_PLAT_IOP=y
 
 #
@@ -182,11 +192,8 @@ CONFIG_XSCALE_PMU=y
 CONFIG_PCI=y
 CONFIG_PCI_SYSCALL=y
 # CONFIG_ARCH_SUPPORTS_MSI is not set
+CONFIG_PCI_LEGACY=y
 # CONFIG_PCI_DEBUG is not set
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
 # CONFIG_PCCARD is not set
 
 #
@@ -205,6 +212,7 @@ CONFIG_FLATMEM_MANUAL=y
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
 # CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4096
 # CONFIG_RESOURCES_64BIT is not set
 CONFIG_ZONE_DMA_FLAG=1
@@ -244,6 +252,7 @@ CONFIG_BINFMT_AOUT=y
 # Power management options
 #
 # CONFIG_PM is not set
+CONFIG_SUSPEND_UP_POSSIBLE=y
 
 #
 # Networking
@@ -282,6 +291,7 @@ CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_XFRM_MODE_TRANSPORT=y
 CONFIG_INET_XFRM_MODE_TUNNEL=y
 CONFIG_INET_XFRM_MODE_BEET=y
+# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=y
 CONFIG_INET_TCP_DIAG=y
 # CONFIG_TCP_CONG_ADVANCED is not set
@@ -321,10 +331,6 @@ CONFIG_IPV6=y
 # CONFIG_LAPB is not set
 # CONFIG_ECONET is not set
 # CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
 # CONFIG_NET_SCHED is not set
 
 #
@@ -353,6 +359,7 @@ CONFIG_IPV6=y
 #
 # Generic Driver Options
 #
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_STANDALONE=y
 CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_FW_LOADER is not set
@@ -382,6 +389,7 @@ CONFIG_MTD_BLOCK=y
 # CONFIG_INFTL is not set
 # CONFIG_RFD_FTL is not set
 # CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
 
 #
 # RAM/ROM/Flash chip drivers
@@ -417,6 +425,7 @@ CONFIG_MTD_PHYSMAP_START=0x0
 CONFIG_MTD_PHYSMAP_LEN=0x0
 CONFIG_MTD_PHYSMAP_BANKWIDTH=1
 # CONFIG_MTD_ARM_INTEGRATOR is not set
+# CONFIG_MTD_INTEL_VR_NOR is not set
 # CONFIG_MTD_PLATRAM is not set
 
 #
@@ -459,6 +468,11 @@ CONFIG_BLK_DEV_RAM_SIZE=8192
 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_PHANTOM is not set
+# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_TIFM_CORE is not set
 # CONFIG_IDE is not set
 
 #
@@ -496,12 +510,9 @@ CONFIG_SCSI_WAIT_SCAN=m
 # CONFIG_SCSI_SPI_ATTRS is not set
 # CONFIG_SCSI_FC_ATTRS is not set
 # CONFIG_SCSI_ISCSI_ATTRS is not set
-# CONFIG_SCSI_SAS_ATTRS is not set
 # CONFIG_SCSI_SAS_LIBSAS is not set
-
-#
-# SCSI low-level drivers
-#
+# CONFIG_SCSI_SRP_ATTRS is not set
+CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_ISCSI_TCP is not set
 # CONFIG_BLK_DEV_3W_XXXX_RAID is not set
 # CONFIG_SCSI_3W_9XXX is not set
@@ -512,6 +523,7 @@ CONFIG_SCSI_WAIT_SCAN=m
 # CONFIG_SCSI_AIC79XX is not set
 # CONFIG_SCSI_AIC94XX is not set
 # CONFIG_SCSI_DPT_I2O is not set
+# CONFIG_SCSI_ADVANSYS is not set
 # CONFIG_SCSI_ARCMSR is not set
 # CONFIG_MEGARAID_NEWGEN is not set
 # CONFIG_MEGARAID_LEGACY is not set
@@ -576,6 +588,7 @@ CONFIG_SATA_VITESSE=y
 # CONFIG_PATA_OLDPIIX is not set
 # CONFIG_PATA_NETCELL is not set
 # CONFIG_PATA_NS87410 is not set
+# CONFIG_PATA_NS87415 is not set
 # CONFIG_PATA_OPTI is not set
 # CONFIG_PATA_OPTIDMA is not set
 # CONFIG_PATA_PDC_OLD is not set
@@ -606,14 +619,8 @@ CONFIG_BLK_DEV_DM=y
 # CONFIG_DM_ZERO is not set
 # CONFIG_DM_MULTIPATH is not set
 # CONFIG_DM_DELAY is not set
-
-#
-# Fusion MPT device support
-#
+# CONFIG_DM_UEVENT is not set
 # CONFIG_FUSION is not set
-# CONFIG_FUSION_SPI is not set
-# CONFIG_FUSION_FC is not set
-# CONFIG_FUSION_SAS is not set
 
 #
 # IEEE 1394 (FireWire) support
@@ -628,6 +635,8 @@ CONFIG_NETDEVICES=y
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_IP1000 is not set
 # CONFIG_ARCNET is not set
 # CONFIG_PHYLIB is not set
 CONFIG_NET_ETHERNET=y
@@ -641,13 +650,16 @@ CONFIG_MII=y
 # CONFIG_DM9000 is not set
 # CONFIG_NET_TULIP is not set
 # CONFIG_HP100 is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
 CONFIG_NET_PCI=y
 # CONFIG_PCNET32 is not set
 # CONFIG_AMD8111_ETH is not set
 # CONFIG_ADAPTEC_STARFIRE is not set
 # CONFIG_B44 is not set
 # CONFIG_FORCEDETH is not set
-# CONFIG_DGRS is not set
 # CONFIG_EEPRO100 is not set
 CONFIG_E100=y
 # CONFIG_FEALNX is not set
@@ -667,6 +679,7 @@ CONFIG_NETDEV_1000=y
 CONFIG_E1000=y
 CONFIG_E1000_NAPI=y
 # CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
+# CONFIG_E1000E is not set
 # CONFIG_NS83820 is not set
 # CONFIG_HAMACHI is not set
 # CONFIG_YELLOWFIN is not set
@@ -675,6 +688,7 @@ CONFIG_R8169=y
 # CONFIG_SIS190 is not set
 # CONFIG_SKGE is not set
 # CONFIG_SKY2 is not set
+# CONFIG_SK98LIN is not set
 # CONFIG_VIA_VELOCITY is not set
 # CONFIG_TIGON3 is not set
 # CONFIG_BNX2 is not set
@@ -683,11 +697,14 @@ CONFIG_R8169=y
 CONFIG_NETDEV_10000=y
 # CONFIG_CHELSIO_T1 is not set
 # CONFIG_CHELSIO_T3 is not set
+# CONFIG_IXGBE is not set
 # CONFIG_IXGB is not set
 # CONFIG_S2IO is not set
 # CONFIG_MYRI10GE is not set
 # CONFIG_NETXEN_NIC is not set
+# CONFIG_NIU is not set
 # CONFIG_MLX4_CORE is not set
+# CONFIG_TEHUTI is not set
 # CONFIG_TR is not set
 
 #
@@ -703,7 +720,6 @@ CONFIG_NETDEV_10000=y
 # CONFIG_USB_KAWETH is not set
 # CONFIG_USB_PEGASUS is not set
 # CONFIG_USB_RTL8150 is not set
-# CONFIG_USB_USBNET_MII is not set
 # CONFIG_USB_USBNET is not set
 # CONFIG_WAN is not set
 # CONFIG_FDDI is not set
@@ -732,7 +748,6 @@ CONFIG_INPUT_MOUSEDEV=y
 CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
 # CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
 # CONFIG_INPUT_EVDEV is not set
 # CONFIG_INPUT_EVBUG is not set
 
@@ -781,12 +796,10 @@ CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
 CONFIG_HW_RANDOM=y
 # CONFIG_NVRAM is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set
-# CONFIG_DRM is not set
 # CONFIG_RAW_DRIVER is not set
 # CONFIG_TCG_TPM is not set
 CONFIG_DEVPORT=y
@@ -852,9 +865,9 @@ CONFIG_I2C_IOP3XX=y
 # CONFIG_SPI is not set
 # CONFIG_SPI_MASTER is not set
 # CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
 CONFIG_HWMON=y
 # CONFIG_HWMON_VID is not set
-# CONFIG_SENSORS_ABITUGURU is not set
 # CONFIG_SENSORS_AD7418 is not set
 # CONFIG_SENSORS_ADM1021 is not set
 # CONFIG_SENSORS_ADM1025 is not set
@@ -862,12 +875,13 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_ADM1029 is not set
 # CONFIG_SENSORS_ADM1031 is not set
 # CONFIG_SENSORS_ADM9240 is not set
-# CONFIG_SENSORS_ASB100 is not set
+# CONFIG_SENSORS_ADT7470 is not set
 # CONFIG_SENSORS_ATXP1 is not set
 # CONFIG_SENSORS_DS1621 is not set
+# CONFIG_SENSORS_I5K_AMB is not set
 # CONFIG_SENSORS_F71805F is not set
-# CONFIG_SENSORS_FSCHER is not set
-# CONFIG_SENSORS_FSCPOS is not set
+# CONFIG_SENSORS_F71882FG is not set
+# CONFIG_SENSORS_F75375S is not set
 # CONFIG_SENSORS_GL518SM is not set
 # CONFIG_SENSORS_GL520SM is not set
 # CONFIG_SENSORS_IT87 is not set
@@ -881,14 +895,17 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_LM87 is not set
 # CONFIG_SENSORS_LM90 is not set
 # CONFIG_SENSORS_LM92 is not set
+# CONFIG_SENSORS_LM93 is not set
 # CONFIG_SENSORS_MAX1619 is not set
 # CONFIG_SENSORS_MAX6650 is not set
 # CONFIG_SENSORS_PC87360 is not set
 # CONFIG_SENSORS_PC87427 is not set
 # CONFIG_SENSORS_SIS5595 is not set
+# CONFIG_SENSORS_DME1737 is not set
 # CONFIG_SENSORS_SMSC47M1 is not set
 # CONFIG_SENSORS_SMSC47M192 is not set
 # CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_THMC50 is not set
 # CONFIG_SENSORS_VIA686A is not set
 # CONFIG_SENSORS_VT1211 is not set
 # CONFIG_SENSORS_VT8231 is not set
@@ -900,29 +917,18 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_W83627HF is not set
 # CONFIG_SENSORS_W83627EHF is not set
 # CONFIG_HWMON_DEBUG_CHIP is not set
-CONFIG_MISC_DEVICES=y
-# CONFIG_PHANTOM is not set
-# CONFIG_EEPROM_93CX6 is not set
-# CONFIG_SGI_IOC4 is not set
-# CONFIG_TIFM_CORE is not set
-
-#
-# Multifunction device drivers
-#
-# CONFIG_MFD_SM501 is not set
-
-#
-# LED devices
-#
-# CONFIG_NEW_LEDS is not set
+# CONFIG_WATCHDOG is not set
 
 #
-# LED drivers
+# Sonics Silicon Backplane
 #
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
 
 #
-# LED Triggers
+# Multifunction device drivers
 #
+# CONFIG_MFD_SM501 is not set
 
 #
 # Multimedia devices
@@ -935,14 +941,16 @@ CONFIG_DAB=y
 #
 # Graphics support
 #
+# CONFIG_DRM is not set
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
 # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
 #
 # Display device support
 #
 # CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_VGASTATE is not set
-# CONFIG_FB is not set
 
 #
 # Console display driver support
@@ -957,6 +965,7 @@ CONFIG_DUMMY_CONSOLE=y
 CONFIG_HID_SUPPORT=y
 CONFIG_HID=y
 # CONFIG_HID_DEBUG is not set
+# CONFIG_HIDRAW is not set
 
 #
 # USB Input Devices
@@ -1013,6 +1022,7 @@ CONFIG_USB_STORAGE=y
 # CONFIG_USB_STORAGE_DEBUG is not set
 # CONFIG_USB_STORAGE_DATAFAB is not set
 # CONFIG_USB_STORAGE_FREECOM is not set
+# CONFIG_USB_STORAGE_ISD200 is not set
 # CONFIG_USB_STORAGE_DPCM is not set
 # CONFIG_USB_STORAGE_USBAT is not set
 # CONFIG_USB_STORAGE_SDDR09 is not set
@@ -1070,28 +1080,66 @@ CONFIG_USB_MON=y
 #
 # CONFIG_USB_GADGET is not set
 # CONFIG_MMC is not set
+# CONFIG_NEW_LEDS is not set
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+# CONFIG_RTC_DEBUG is not set
 
 #
-# Real Time Clock
+# RTC interfaces
 #
-CONFIG_RTC_LIB=y
-# CONFIG_RTC_CLASS is not set
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+# CONFIG_RTC_DRV_TEST is not set
 
 #
-# DMA Engine support
+# I2C RTC drivers
 #
-CONFIG_DMA_ENGINE=y
+# CONFIG_RTC_DRV_DS1307 is not set
+# CONFIG_RTC_DRV_DS1374 is not set
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+CONFIG_RTC_DRV_RS5C372=y
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
 
 #
-# DMA Clients
+# SPI RTC drivers
 #
-CONFIG_NET_DMA=y
+
+#
+# Platform RTC drivers
+#
+# CONFIG_RTC_DRV_CMOS is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
+
+#
+# on-CPU RTC drivers
+#
+CONFIG_DMADEVICES=y
 
 #
 # DMA Devices
 #
-# CONFIG_INTEL_IOATDMA is not set
 CONFIG_INTEL_IOP_ADMA=y
+CONFIG_DMA_ENGINE=y
+
+#
+# DMA Clients
+#
+CONFIG_NET_DMA=y
 
 #
 # File systems
@@ -1105,7 +1153,6 @@ CONFIG_EXT3_FS_XATTR=y
 # CONFIG_EXT3_FS_SECURITY is not set
 # CONFIG_EXT4DEV_FS is not set
 CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
 CONFIG_FS_MBCACHE=y
 # CONFIG_REISERFS_FS is not set
 # CONFIG_JFS_FS is not set
@@ -1145,7 +1192,6 @@ CONFIG_SYSFS=y
 CONFIG_TMPFS=y
 # CONFIG_TMPFS_POSIX_ACL is not set
 # CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
 # CONFIG_CONFIGFS_FS is not set
 
 #
@@ -1162,10 +1208,12 @@ CONFIG_ECRYPT_FS=y
 CONFIG_JFFS2_FS=y
 CONFIG_JFFS2_FS_DEBUG=0
 CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
 # CONFIG_JFFS2_SUMMARY is not set
 # CONFIG_JFFS2_FS_XATTR is not set
 # CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
 CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS2_LZO is not set
 CONFIG_JFFS2_RTIME=y
 # CONFIG_JFFS2_RUBIN is not set
 CONFIG_CRAMFS=y
@@ -1174,10 +1222,7 @@ CONFIG_CRAMFS=y
 # CONFIG_QNX4FS_FS is not set
 # CONFIG_SYSV_FS is not set
 # CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
+CONFIG_NETWORK_FILESYSTEMS=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V3=y
 # CONFIG_NFS_V3_ACL is not set
@@ -1224,26 +1269,17 @@ CONFIG_MSDOS_PARTITION=y
 # CONFIG_KARMA_PARTITION is not set
 # CONFIG_EFI_PARTITION is not set
 # CONFIG_SYSV68_PARTITION is not set
-
-#
-# Native Language Support
-#
 # CONFIG_NLS is not set
-
-#
-# Distributed Lock Manager
-#
 # CONFIG_DLM is not set
-
-#
-# Profiling support
-#
+CONFIG_INSTRUMENTATION=y
 # CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
 
 #
 # Kernel hacking
 #
 # CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
 CONFIG_ENABLE_MUST_CHECK=y
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_UNUSED_SYMBOLS is not set
@@ -1270,10 +1306,13 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
 # CONFIG_DEBUG_VM is not set
 # CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
 CONFIG_FRAME_POINTER=y
 # CONFIG_FORCED_INLINING is not set
+# CONFIG_BOOT_PRINTK_DELAY is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_FAULT_INJECTION is not set
+# CONFIG_SAMPLES is not set
 CONFIG_DEBUG_USER=y
 # CONFIG_DEBUG_ERRORS is not set
 CONFIG_DEBUG_LL=y
@@ -1285,6 +1324,7 @@ CONFIG_DEBUG_LL=y
 CONFIG_KEYS=y
 CONFIG_KEYS_DEBUG_PROC_KEYS=y
 # CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
 CONFIG_XOR_BLOCKS=y
 CONFIG_ASYNC_CORE=y
 CONFIG_ASYNC_MEMCPY=y
@@ -1309,6 +1349,7 @@ CONFIG_CRYPTO_ECB=y
 CONFIG_CRYPTO_CBC=y
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_LRW=y
+# CONFIG_CRYPTO_XTS is not set
 # CONFIG_CRYPTO_CRYPTD is not set
 CONFIG_CRYPTO_DES=y
 # CONFIG_CRYPTO_FCRYPT is not set
@@ -1323,11 +1364,13 @@ CONFIG_CRYPTO_TEA=y
 CONFIG_CRYPTO_ARC4=y
 CONFIG_CRYPTO_KHAZAD=y
 CONFIG_CRYPTO_ANUBIS=y
+# CONFIG_CRYPTO_SEED is not set
 CONFIG_CRYPTO_DEFLATE=y
 CONFIG_CRYPTO_MICHAEL_MIC=y
 CONFIG_CRYPTO_CRC32C=y
 # CONFIG_CRYPTO_CAMELLIA is not set
 # CONFIG_CRYPTO_TEST is not set
+# CONFIG_CRYPTO_AUTHENC is not set
 CONFIG_CRYPTO_HW=y
 
 #
diff --git a/arch/arm/configs/iop33x_defconfig b/arch/arm/configs/iop33x_defconfig
index 721ee64a13f7..917afb5ccfac 100644
--- a/arch/arm/configs/iop33x_defconfig
+++ b/arch/arm/configs/iop33x_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22
-# Thu Jul 19 16:05:59 2007
+# Linux kernel version: 2.6.24-rc5
+# Wed Dec 12 16:11:27 2007
 #
 CONFIG_ARM=y
 CONFIG_SYS_SUPPORTS_APM_EMULATION=y
@@ -26,15 +26,11 @@ CONFIG_VECTORS_BASE=0xffff0000
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
 #
-# Code maturity level options
+# General setup
 #
 CONFIG_EXPERIMENTAL=y
 CONFIG_BROKEN_ON_SMP=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
 CONFIG_LOCALVERSION=""
 CONFIG_LOCALVERSION_AUTO=y
 CONFIG_SWAP=y
@@ -45,9 +41,14 @@ CONFIG_BSD_PROCESS_ACCT=y
 # CONFIG_BSD_PROCESS_ACCT_V3 is not set
 # CONFIG_TASKSTATS is not set
 # CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
 # CONFIG_AUDIT is not set
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
 CONFIG_SYSFS_DEPRECATED=y
 # CONFIG_RELAY is not set
 CONFIG_BLK_DEV_INITRD=y
@@ -69,7 +70,6 @@ CONFIG_FUTEX=y
 CONFIG_ANON_INODES=y
 CONFIG_EPOLL=y
 CONFIG_SIGNALFD=y
-CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
@@ -130,6 +130,7 @@ CONFIG_ARCH_IOP33X=y
 # CONFIG_ARCH_L7200 is not set
 # CONFIG_ARCH_KS8695 is not set
 # CONFIG_ARCH_NS9XXX is not set
+# CONFIG_ARCH_MXC is not set
 # CONFIG_ARCH_PNX4008 is not set
 # CONFIG_ARCH_PXA is not set
 # CONFIG_ARCH_RPC is not set
@@ -150,6 +151,14 @@ CONFIG_IOP3XX_ATU=y
 #
 CONFIG_ARCH_IQ80331=y
 CONFIG_MACH_IQ80332=y
+
+#
+# Boot options
+#
+
+#
+# Power management
+#
 CONFIG_PLAT_IOP=y
 
 #
@@ -179,11 +188,8 @@ CONFIG_XSCALE_PMU=y
 CONFIG_PCI=y
 CONFIG_PCI_SYSCALL=y
 # CONFIG_ARCH_SUPPORTS_MSI is not set
+CONFIG_PCI_LEGACY=y
 # CONFIG_PCI_DEBUG is not set
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
 # CONFIG_PCCARD is not set
 
 #
@@ -202,6 +208,7 @@ CONFIG_FLATMEM_MANUAL=y
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
 # CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4096
 # CONFIG_RESOURCES_64BIT is not set
 CONFIG_ZONE_DMA_FLAG=1
@@ -241,6 +248,7 @@ CONFIG_BINFMT_AOUT=y
 # Power management options
 #
 # CONFIG_PM is not set
+CONFIG_SUSPEND_UP_POSSIBLE=y
 
 #
 # Networking
@@ -279,6 +287,7 @@ CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_XFRM_MODE_TRANSPORT=y
 CONFIG_INET_XFRM_MODE_TUNNEL=y
 CONFIG_INET_XFRM_MODE_BEET=y
+# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=y
 CONFIG_INET_TCP_DIAG=y
 # CONFIG_TCP_CONG_ADVANCED is not set
@@ -318,10 +327,6 @@ CONFIG_IPV6=y
 # CONFIG_LAPB is not set
 # CONFIG_ECONET is not set
 # CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
 # CONFIG_NET_SCHED is not set
 
 #
@@ -350,6 +355,7 @@ CONFIG_IPV6=y
 #
 # Generic Driver Options
 #
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_STANDALONE=y
 CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_FW_LOADER is not set
@@ -379,6 +385,7 @@ CONFIG_MTD_BLOCK=y
 # CONFIG_INFTL is not set
 # CONFIG_RFD_FTL is not set
 # CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
 
 #
 # RAM/ROM/Flash chip drivers
@@ -419,6 +426,7 @@ CONFIG_MTD_PHYSMAP_START=0x0
 CONFIG_MTD_PHYSMAP_LEN=0x0
 CONFIG_MTD_PHYSMAP_BANKWIDTH=1
 # CONFIG_MTD_ARM_INTEGRATOR is not set
+# CONFIG_MTD_INTEL_VR_NOR is not set
 # CONFIG_MTD_PLATRAM is not set
 
 #
@@ -459,6 +467,11 @@ CONFIG_BLK_DEV_RAM_SIZE=8192
 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_PHANTOM is not set
+# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_TIFM_CORE is not set
 # CONFIG_IDE is not set
 
 #
@@ -496,12 +509,9 @@ CONFIG_SCSI_WAIT_SCAN=m
 # CONFIG_SCSI_SPI_ATTRS is not set
 # CONFIG_SCSI_FC_ATTRS is not set
 # CONFIG_SCSI_ISCSI_ATTRS is not set
-# CONFIG_SCSI_SAS_ATTRS is not set
 # CONFIG_SCSI_SAS_LIBSAS is not set
-
-#
-# SCSI low-level drivers
-#
+# CONFIG_SCSI_SRP_ATTRS is not set
+CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_ISCSI_TCP is not set
 # CONFIG_BLK_DEV_3W_XXXX_RAID is not set
 # CONFIG_SCSI_3W_9XXX is not set
@@ -512,6 +522,7 @@ CONFIG_SCSI_WAIT_SCAN=m
 # CONFIG_SCSI_AIC79XX is not set
 # CONFIG_SCSI_AIC94XX is not set
 # CONFIG_SCSI_DPT_I2O is not set
+# CONFIG_SCSI_ADVANSYS is not set
 # CONFIG_SCSI_ARCMSR is not set
 # CONFIG_MEGARAID_NEWGEN is not set
 # CONFIG_MEGARAID_LEGACY is not set
@@ -552,14 +563,8 @@ CONFIG_BLK_DEV_DM=y
 # CONFIG_DM_ZERO is not set
 # CONFIG_DM_MULTIPATH is not set
 # CONFIG_DM_DELAY is not set
-
-#
-# Fusion MPT device support
-#
+# CONFIG_DM_UEVENT is not set
 # CONFIG_FUSION is not set
-# CONFIG_FUSION_SPI is not set
-# CONFIG_FUSION_FC is not set
-# CONFIG_FUSION_SAS is not set
 
 #
 # IEEE 1394 (FireWire) support
@@ -574,6 +579,8 @@ CONFIG_NETDEVICES=y
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_IP1000 is not set
 # CONFIG_ARCNET is not set
 # CONFIG_NET_ETHERNET is not set
 CONFIG_NETDEV_1000=y
@@ -582,6 +589,7 @@ CONFIG_NETDEV_1000=y
 CONFIG_E1000=y
 CONFIG_E1000_NAPI=y
 # CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
+# CONFIG_E1000E is not set
 # CONFIG_NS83820 is not set
 # CONFIG_HAMACHI is not set
 # CONFIG_YELLOWFIN is not set
@@ -589,6 +597,7 @@ CONFIG_E1000_NAPI=y
 # CONFIG_SIS190 is not set
 # CONFIG_SKGE is not set
 # CONFIG_SKY2 is not set
+# CONFIG_SK98LIN is not set
 # CONFIG_VIA_VELOCITY is not set
 # CONFIG_TIGON3 is not set
 # CONFIG_BNX2 is not set
@@ -597,11 +606,14 @@ CONFIG_E1000_NAPI=y
 CONFIG_NETDEV_10000=y
 # CONFIG_CHELSIO_T1 is not set
 # CONFIG_CHELSIO_T3 is not set
+# CONFIG_IXGBE is not set
 # CONFIG_IXGB is not set
 # CONFIG_S2IO is not set
 # CONFIG_MYRI10GE is not set
 # CONFIG_NETXEN_NIC is not set
+# CONFIG_NIU is not set
 # CONFIG_MLX4_CORE is not set
+# CONFIG_TEHUTI is not set
 # CONFIG_TR is not set
 
 #
@@ -636,7 +648,6 @@ CONFIG_INPUT_MOUSEDEV=y
 CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
 # CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
 # CONFIG_INPUT_EVDEV is not set
 # CONFIG_INPUT_EVBUG is not set
 
@@ -685,12 +696,10 @@ CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
 CONFIG_HW_RANDOM=y
 # CONFIG_NVRAM is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set
-# CONFIG_DRM is not set
 # CONFIG_RAW_DRIVER is not set
 # CONFIG_TCG_TPM is not set
 CONFIG_DEVPORT=y
@@ -755,9 +764,9 @@ CONFIG_I2C_IOP3XX=y
 # CONFIG_SPI is not set
 # CONFIG_SPI_MASTER is not set
 # CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
 CONFIG_HWMON=y
 # CONFIG_HWMON_VID is not set
-# CONFIG_SENSORS_ABITUGURU is not set
 # CONFIG_SENSORS_AD7418 is not set
 # CONFIG_SENSORS_ADM1021 is not set
 # CONFIG_SENSORS_ADM1025 is not set
@@ -765,12 +774,13 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_ADM1029 is not set
 # CONFIG_SENSORS_ADM1031 is not set
 # CONFIG_SENSORS_ADM9240 is not set
-# CONFIG_SENSORS_ASB100 is not set
+# CONFIG_SENSORS_ADT7470 is not set
 # CONFIG_SENSORS_ATXP1 is not set
 # CONFIG_SENSORS_DS1621 is not set
+# CONFIG_SENSORS_I5K_AMB is not set
 # CONFIG_SENSORS_F71805F is not set
-# CONFIG_SENSORS_FSCHER is not set
-# CONFIG_SENSORS_FSCPOS is not set
+# CONFIG_SENSORS_F71882FG is not set
+# CONFIG_SENSORS_F75375S is not set
 # CONFIG_SENSORS_GL518SM is not set
 # CONFIG_SENSORS_GL520SM is not set
 # CONFIG_SENSORS_IT87 is not set
@@ -784,14 +794,17 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_LM87 is not set
 # CONFIG_SENSORS_LM90 is not set
 # CONFIG_SENSORS_LM92 is not set
+# CONFIG_SENSORS_LM93 is not set
 # CONFIG_SENSORS_MAX1619 is not set
 # CONFIG_SENSORS_MAX6650 is not set
 # CONFIG_SENSORS_PC87360 is not set
 # CONFIG_SENSORS_PC87427 is not set
 # CONFIG_SENSORS_SIS5595 is not set
+# CONFIG_SENSORS_DME1737 is not set
 # CONFIG_SENSORS_SMSC47M1 is not set
 # CONFIG_SENSORS_SMSC47M192 is not set
 # CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_THMC50 is not set
 # CONFIG_SENSORS_VIA686A is not set
 # CONFIG_SENSORS_VT1211 is not set
 # CONFIG_SENSORS_VT8231 is not set
@@ -803,29 +816,18 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_W83627HF is not set
 # CONFIG_SENSORS_W83627EHF is not set
 # CONFIG_HWMON_DEBUG_CHIP is not set
-CONFIG_MISC_DEVICES=y
-# CONFIG_PHANTOM is not set
-# CONFIG_EEPROM_93CX6 is not set
-# CONFIG_SGI_IOC4 is not set
-# CONFIG_TIFM_CORE is not set
-
-#
-# Multifunction device drivers
-#
-# CONFIG_MFD_SM501 is not set
-
-#
-# LED devices
-#
-# CONFIG_NEW_LEDS is not set
+# CONFIG_WATCHDOG is not set
 
 #
-# LED drivers
+# Sonics Silicon Backplane
 #
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
 
 #
-# LED Triggers
+# Multifunction device drivers
 #
+# CONFIG_MFD_SM501 is not set
 
 #
 # Multimedia devices
@@ -837,14 +839,16 @@ CONFIG_DAB=y
 #
 # Graphics support
 #
+# CONFIG_DRM is not set
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
 # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
 #
 # Display device support
 #
 # CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_VGASTATE is not set
-# CONFIG_FB is not set
 
 #
 # Console display driver support
@@ -859,6 +863,7 @@ CONFIG_DUMMY_CONSOLE=y
 CONFIG_HID_SUPPORT=y
 CONFIG_HID=y
 # CONFIG_HID_DEBUG is not set
+# CONFIG_HIDRAW is not set
 CONFIG_USB_SUPPORT=y
 CONFIG_USB_ARCH_HAS_HCD=y
 CONFIG_USB_ARCH_HAS_OHCI=y
@@ -874,16 +879,15 @@ CONFIG_USB_ARCH_HAS_EHCI=y
 #
 # CONFIG_USB_GADGET is not set
 # CONFIG_MMC is not set
-
-#
-# Real Time Clock
-#
+# CONFIG_NEW_LEDS is not set
 CONFIG_RTC_LIB=y
 # CONFIG_RTC_CLASS is not set
+CONFIG_DMADEVICES=y
 
 #
-# DMA Engine support
+# DMA Devices
 #
+CONFIG_INTEL_IOP_ADMA=y
 CONFIG_DMA_ENGINE=y
 
 #
@@ -891,12 +895,6 @@ CONFIG_DMA_ENGINE=y
 #
 CONFIG_NET_DMA=y
 
-#
-# DMA Devices
-#
-# CONFIG_INTEL_IOATDMA is not set
-CONFIG_INTEL_IOP_ADMA=y
-
 #
 # File systems
 #
@@ -909,7 +907,6 @@ CONFIG_EXT3_FS_XATTR=y
 # CONFIG_EXT3_FS_SECURITY is not set
 # CONFIG_EXT4DEV_FS is not set
 CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
 CONFIG_FS_MBCACHE=y
 # CONFIG_REISERFS_FS is not set
 # CONFIG_JFS_FS is not set
@@ -949,7 +946,6 @@ CONFIG_SYSFS=y
 CONFIG_TMPFS=y
 # CONFIG_TMPFS_POSIX_ACL is not set
 # CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
 # CONFIG_CONFIGFS_FS is not set
 
 #
@@ -969,10 +965,7 @@ CONFIG_CRAMFS=y
 # CONFIG_QNX4FS_FS is not set
 # CONFIG_SYSV_FS is not set
 # CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
+CONFIG_NETWORK_FILESYSTEMS=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V3=y
 # CONFIG_NFS_V3_ACL is not set
@@ -1019,26 +1012,17 @@ CONFIG_MSDOS_PARTITION=y
 # CONFIG_KARMA_PARTITION is not set
 # CONFIG_EFI_PARTITION is not set
 # CONFIG_SYSV68_PARTITION is not set
-
-#
-# Native Language Support
-#
 # CONFIG_NLS is not set
-
-#
-# Distributed Lock Manager
-#
 # CONFIG_DLM is not set
-
-#
-# Profiling support
-#
+CONFIG_INSTRUMENTATION=y
 # CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
 
 #
 # Kernel hacking
 #
 # CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
 CONFIG_ENABLE_MUST_CHECK=y
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_UNUSED_SYMBOLS is not set
@@ -1065,10 +1049,13 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
 # CONFIG_DEBUG_VM is not set
 # CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
 CONFIG_FRAME_POINTER=y
 # CONFIG_FORCED_INLINING is not set
+# CONFIG_BOOT_PRINTK_DELAY is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_FAULT_INJECTION is not set
+# CONFIG_SAMPLES is not set
 CONFIG_DEBUG_USER=y
 # CONFIG_DEBUG_ERRORS is not set
 CONFIG_DEBUG_LL=y
@@ -1079,6 +1066,7 @@ CONFIG_DEBUG_LL=y
 #
 # CONFIG_KEYS is not set
 # CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
 CONFIG_XOR_BLOCKS=y
 CONFIG_ASYNC_CORE=y
 CONFIG_ASYNC_MEMCPY=y
-- 
cgit v1.2.3-59-g8ed1b


From bd7b8858631bf335ce6e8b4a985b7f951041b572 Mon Sep 17 00:00:00 2001
From: Martin Michlmayr <tbm@cyrius.com>
Date: Thu, 27 Dec 2007 14:09:07 +0100
Subject: [ARM] 4732/1: GLAN Tank: register rtc-rs5c372 i2c device

Use the new i2c framework to load rtc-rs5c372 for the GLAN Tank.

Tested-by: Gordon Farquharson <gordonfarquharson@gmail.com>

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-iop32x/glantank.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c
index 2b086ab2668c..6309f9a99fd5 100644
--- a/arch/arm/mach-iop32x/glantank.c
+++ b/arch/arm/mach-iop32x/glantank.c
@@ -3,7 +3,7 @@
  *
  * Board support code for the GLAN Tank.
  *
- * Copyright (C) 2006 Martin Michlmayr <tbm@cyrius.com>
+ * Copyright (C) 2006, 2007 Martin Michlmayr <tbm@cyrius.com>
  * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
  *
  * This program is free software; you can redistribute it and/or modify it
@@ -21,6 +21,7 @@
 #include <linux/serial_core.h>
 #include <linux/serial_8250.h>
 #include <linux/mtd/physmap.h>
+#include <linux/i2c.h>
 #include <linux/platform_device.h>
 #include <asm/hardware.h>
 #include <asm/io.h>
@@ -166,6 +167,13 @@ static struct platform_device glantank_serial_device = {
 	.resource	= &glantank_uart_resource,
 };
 
+static struct i2c_board_info __initdata glantank_i2c_devices[] = {
+	{
+		I2C_BOARD_INFO("rtc-rs5c372", 0x32),
+		.type = "rs5c372a",
+	},
+};
+
 static void glantank_power_off(void)
 {
 	__raw_writeb(0x01, 0xfe8d0004);
@@ -183,6 +191,9 @@ static void __init glantank_init_machine(void)
 	platform_device_register(&iop3xx_dma_0_channel);
 	platform_device_register(&iop3xx_dma_1_channel);
 
+	i2c_register_board_info(0, glantank_i2c_devices,
+		ARRAY_SIZE(glantank_i2c_devices));
+
 	pm_power_off = glantank_power_off;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 7d77ce8f67358c6b7708726f8fa230cd58d75b2c Mon Sep 17 00:00:00 2001
From: Andrew Victor <andrew@sanpeople.com>
Date: Mon, 15 Oct 2007 13:09:19 +0100
Subject: [ARM] 4601/1: KS8695: PCI support

This patch adds support for the PCI Host controller integrated in the
Kendin/Micrel KS8695 processor.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-ks8695/Makefile       |   2 +-
 arch/arm/mach-ks8695/board-micrel.c |   2 +-
 arch/arm/mach-ks8695/pci.c          | 326 ++++++++++++++++++++++++++++++++++++
 3 files changed, 328 insertions(+), 2 deletions(-)
 create mode 100644 arch/arm/mach-ks8695/pci.c

(limited to 'arch')

diff --git a/arch/arm/mach-ks8695/Makefile b/arch/arm/mach-ks8695/Makefile
index 2a07a281fa8a..730a3af12c98 100644
--- a/arch/arm/mach-ks8695/Makefile
+++ b/arch/arm/mach-ks8695/Makefile
@@ -9,7 +9,7 @@ obj-n				:=
 obj-				:=
 
 # PCI support is optional
-#obj-$(CONFIG_PCI)		+= pci.o
+obj-$(CONFIG_PCI)		+= pci.o
 
 # Board-specific support
 obj-$(CONFIG_MACH_KS8695)	+= board-micrel.o
diff --git a/arch/arm/mach-ks8695/board-micrel.c b/arch/arm/mach-ks8695/board-micrel.c
index 2feeef81d843..05ac2bd04020 100644
--- a/arch/arm/mach-ks8695/board-micrel.c
+++ b/arch/arm/mach-ks8695/board-micrel.c
@@ -40,7 +40,7 @@ static void __init micrel_init(void)
 	printk(KERN_INFO "Micrel KS8695 Development Board initializing\n");
 
 #ifdef CONFIG_PCI
-//	ks8695_init_pci(&micrel_pci);
+	ks8695_init_pci(&micrel_pci);
 #endif
 
 	/* Add devices */
diff --git a/arch/arm/mach-ks8695/pci.c b/arch/arm/mach-ks8695/pci.c
new file mode 100644
index 000000000000..3f4e0330cb1a
--- /dev/null
+++ b/arch/arm/mach-ks8695/pci.c
@@ -0,0 +1,326 @@
+/*
+ * arch/arm/mach-ks8695/pci.c
+ *
+ *  Copyright (C) 2003, Micrel Semiconductors
+ *  Copyright (C) 2006, Greg Ungerer <gerg@snapgear.com>
+ *  Copyright (C) 2006, Ben Dooks
+ *  Copyright (C) 2007, Andrew Victor
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+#include <asm/signal.h>
+#include <asm/mach/pci.h>
+#include <asm/hardware.h>
+
+#include <asm/arch/devices.h>
+#include <asm/arch/regs-pci.h>
+
+
+static int pci_dbg;
+static int pci_cfg_dbg;
+
+
+static void ks8695_pci_setupconfig(unsigned int bus_nr, unsigned int devfn, unsigned int where)
+{
+	unsigned long pbca;
+
+	pbca = PBCA_ENABLE | (where & ~3);
+	pbca |= PCI_SLOT(devfn) << 11 ;
+	pbca |= PCI_FUNC(devfn) << 8;
+	pbca |= bus_nr << 16;
+
+	if (bus_nr == 0) {
+		/* use Type-0 transaction */
+		__raw_writel(pbca, KS8695_PCI_VA + KS8695_PBCA);
+	} else {
+		/* use Type-1 transaction */
+		__raw_writel(pbca | PBCA_TYPE1, KS8695_PCI_VA + KS8695_PBCA);
+	}
+}
+
+
+/*
+ * The KS8695 datasheet prohibits anything other than 32bit accesses
+ * to the IO registers, so all our configuration must be done with
+ * 32bit operations, and the correct bit masking and shifting.
+ */
+
+static int ks8695_pci_readconfig(struct pci_bus *bus,
+			unsigned int devfn, int where, int size, u32 *value)
+{
+	ks8695_pci_setupconfig(bus->number, devfn, where);
+
+	*value = __raw_readl(KS8695_PCI_VA +  KS8695_PBCD);
+
+	switch (size) {
+		case 4:
+			break;
+		case 2:
+			*value = *value >> ((where & 2) * 8);
+			*value &= 0xffff;
+			break;
+		case 1:
+			*value = *value >> ((where & 3) * 8);
+			*value &= 0xff;
+			break;
+	}
+
+	if (pci_cfg_dbg) {
+		printk("read: %d,%08x,%02x,%d: %08x (%08x)\n",
+			bus->number, devfn, where, size, *value,
+			__raw_readl(KS8695_PCI_VA +  KS8695_PBCD));
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int ks8695_pci_writeconfig(struct pci_bus *bus,
+			unsigned int devfn, int where, int size, u32 value)
+{
+	unsigned long tmp;
+
+	if (pci_cfg_dbg) {
+		printk("write: %d,%08x,%02x,%d: %08x\n",
+			bus->number, devfn, where, size, value);
+	}
+
+	ks8695_pci_setupconfig(bus->number, devfn, where);
+
+	switch (size) {
+		case 4:
+			__raw_writel(value, KS8695_PCI_VA +  KS8695_PBCD);
+			break;
+		case 2:
+			tmp = __raw_readl(KS8695_PCI_VA +  KS8695_PBCD);
+			tmp &= ~(0xffff << ((where & 2) * 8));
+			tmp |= value << ((where & 2) * 8);
+
+			__raw_writel(tmp, KS8695_PCI_VA +  KS8695_PBCD);
+			break;
+		case 1:
+			tmp = __raw_readl(KS8695_PCI_VA +  KS8695_PBCD);
+			tmp &= ~(0xff << ((where & 3) * 8));
+			tmp |= value << ((where & 3) * 8);
+
+			__raw_writel(tmp, KS8695_PCI_VA +  KS8695_PBCD);
+			break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static void ks8695_local_writeconfig(int where, u32 value)
+{
+	ks8695_pci_setupconfig(0, 0, where);
+	__raw_writel(value, KS8695_PCI_VA + KS8695_PBCD);
+}
+
+static struct pci_ops ks8695_pci_ops = {
+	.read	= ks8695_pci_readconfig,
+	.write	= ks8695_pci_writeconfig,
+};
+
+static struct pci_bus *ks8695_pci_scan_bus(int nr, struct pci_sys_data *sys)
+{
+	return pci_scan_bus(sys->busnr, &ks8695_pci_ops, sys);
+}
+
+static struct resource pci_mem = {
+	.name	= "PCI Memory space",
+	.start	= KS8695_PCIMEM_PA,
+	.end	= KS8695_PCIMEM_PA + (KS8695_PCIMEM_SIZE - 1),
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct resource pci_io = {
+	.name	= "PCI IO space",
+	.start	= KS8695_PCIIO_PA,
+	.end	= KS8695_PCIIO_PA + (KS8695_PCIIO_SIZE - 1),
+	.flags	= IORESOURCE_IO,
+};
+
+static int __init ks8695_pci_setup(int nr, struct pci_sys_data *sys)
+{
+	if (nr > 0)
+		return 0;
+
+	request_resource(&iomem_resource, &pci_mem);
+	request_resource(&ioport_resource, &pci_io);
+
+	sys->resource[0] = &pci_io;
+	sys->resource[1] = &pci_mem;
+	sys->resource[2] = NULL;
+
+	/* Assign and enable processor bridge */
+	ks8695_local_writeconfig(PCI_BASE_ADDRESS_0, KS8695_PCIMEM_PA);
+
+	/* Enable bus-master & Memory Space access */
+	ks8695_local_writeconfig(PCI_COMMAND, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
+
+	/* Set cache-line size & latency. */
+	ks8695_local_writeconfig(PCI_CACHE_LINE_SIZE, (32 << 8) | (L1_CACHE_BYTES / sizeof(u32)));
+
+	/* Reserve PCI memory space for PCI-AHB resources */
+	if (!request_mem_region(KS8695_PCIMEM_PA, SZ_64M, "PCI-AHB Bridge")) {
+		printk(KERN_ERR "Cannot allocate PCI-AHB Bridge memory.\n");
+		return -EBUSY;
+	}
+
+	return 1;
+}
+
+static inline unsigned int size_mask(unsigned long size)
+{
+	return (~size) + 1;
+}
+
+static int ks8695_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
+{
+	unsigned long pc = instruction_pointer(regs);
+	unsigned long instr = *(unsigned long *)pc;
+	unsigned long cmdstat;
+
+	cmdstat = __raw_readl(KS8695_PCI_VA + KS8695_CRCFCS);
+
+	printk(KERN_ERR "PCI abort: address = 0x%08lx fsr = 0x%03x PC = 0x%08lx LR = 0x%08lx [%s%s%s%s%s]\n",
+		addr, fsr, regs->ARM_pc, regs->ARM_lr,
+		cmdstat & (PCI_STATUS_SIG_TARGET_ABORT << 16) ? "GenTarget" : " ",
+		cmdstat & (PCI_STATUS_REC_TARGET_ABORT << 16) ? "RecvTarget" : " ",
+		cmdstat & (PCI_STATUS_REC_MASTER_ABORT << 16) ? "MasterAbort" : " ",
+		cmdstat & (PCI_STATUS_SIG_SYSTEM_ERROR << 16) ? "SysError" : " ",
+		cmdstat & (PCI_STATUS_DETECTED_PARITY << 16)  ? "Parity" : " "
+	);
+
+	__raw_writel(cmdstat, KS8695_PCI_VA + KS8695_CRCFCS);
+
+	/*
+	 * If the instruction being executed was a read,
+	 * make it look like it read all-ones.
+	 */
+	if ((instr & 0x0c100000) == 0x04100000) {
+		int reg = (instr >> 12) & 15;
+		unsigned long val;
+
+		if (instr & 0x00400000)
+			val = 255;
+		else
+			val = -1;
+
+		regs->uregs[reg] = val;
+		regs->ARM_pc += 4;
+		return 0;
+	}
+
+	if ((instr & 0x0e100090) == 0x00100090) {
+		int reg = (instr >> 12) & 15;
+
+		regs->uregs[reg] = -1;
+		regs->ARM_pc += 4;
+		return 0;
+	}
+
+	return 1;
+}
+
+static void __init ks8695_pci_preinit(void)
+{
+	/* stage 1 initialization, subid, subdevice = 0x0001 */
+	__raw_writel(0x00010001, KS8695_PCI_VA + KS8695_CRCSID);
+
+	/* stage 2 initialization */
+	/* prefetch limits with 16 words, retry enable */
+	__raw_writel(0x40000000, KS8695_PCI_VA + KS8695_PBCS);
+
+	/* configure memory mapping */
+	__raw_writel(KS8695_PCIMEM_PA, KS8695_PCI_VA + KS8695_PMBA);
+	__raw_writel(size_mask(KS8695_PCIMEM_SIZE), KS8695_PCI_VA + KS8695_PMBAM);
+	__raw_writel(KS8695_PCIMEM_PA, KS8695_PCI_VA + KS8695_PMBAT);
+	__raw_writel(0, KS8695_PCI_VA + KS8695_PMBAC);
+
+	/* configure IO mapping */
+	__raw_writel(KS8695_PCIIO_PA, KS8695_PCI_VA + KS8695_PIOBA);
+	__raw_writel(size_mask(KS8695_PCIIO_SIZE), KS8695_PCI_VA + KS8695_PIOBAM);
+	__raw_writel(KS8695_PCIIO_PA, KS8695_PCI_VA + KS8695_PIOBAT);
+	__raw_writel(0, KS8695_PCI_VA + KS8695_PIOBAC);
+
+	/* hook in fault handlers */
+	hook_fault_code(8, ks8695_pci_fault, SIGBUS, "external abort on non-linefetch");
+	hook_fault_code(10, ks8695_pci_fault, SIGBUS, "external abort on non-linefetch");
+}
+
+static void ks8695_show_pciregs(void)
+{
+	if (!pci_dbg)
+		return;
+
+	printk(KERN_INFO "PCI: CRCFID = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFID));
+	printk(KERN_INFO "PCI: CRCFCS = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFCS));
+	printk(KERN_INFO "PCI: CRCFRV = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFRV));
+	printk(KERN_INFO "PCI: CRCFLT = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFLT));
+	printk(KERN_INFO "PCI: CRCBMA = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCBMA));
+	printk(KERN_INFO "PCI: CRCSID = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCSID));
+	printk(KERN_INFO "PCI: CRCFIT = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFIT));
+
+	printk(KERN_INFO "PCI: PBM    = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PBM));
+	printk(KERN_INFO "PCI: PBCS   = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PBCS));
+
+	printk(KERN_INFO "PCI: PMBA   = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PMBA));
+	printk(KERN_INFO "PCI: PMBAC  = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PMBAC));
+	printk(KERN_INFO "PCI: PMBAM  = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PMBAM));
+	printk(KERN_INFO "PCI: PMBAT  = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PMBAT));
+
+	printk(KERN_INFO "PCI: PIOBA  = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PIOBA));
+	printk(KERN_INFO "PCI: PIOBAC = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PIOBAC));
+	printk(KERN_INFO "PCI: PIOBAM = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PIOBAM));
+	printk(KERN_INFO "PCI: PIOBAT = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PIOBAT));
+}
+
+
+static struct hw_pci ks8695_pci __initdata = {
+	.nr_controllers	= 1,
+	.preinit	= ks8695_pci_preinit,
+	.setup		= ks8695_pci_setup,
+	.scan		= ks8695_pci_scan_bus,
+	.postinit	= NULL,
+	.swizzle	= pci_std_swizzle,
+	.map_irq	= NULL,
+};
+
+void __init ks8695_init_pci(struct ks8695_pci_cfg *cfg)
+{
+	if (__raw_readl(KS8695_PCI_VA + KS8695_CRCFRV) & CFRV_GUEST) {
+		printk("PCI: KS8695 in guest mode, not initialising\n");
+		return;
+	}
+
+	printk(KERN_INFO "PCI: Initialising\n");
+	ks8695_show_pciregs();
+
+	/* set Mode */
+	__raw_writel(cfg->mode << 29, KS8695_PCI_VA + KS8695_PBM);
+
+	ks8695_pci.map_irq = cfg->map_irq;	/* board-specific map_irq method */
+
+	pci_common_init(&ks8695_pci);
+}
-- 
cgit v1.2.3-59-g8ed1b


From 20118ff97823822bf4d52ccb528ce2b5042c3057 Mon Sep 17 00:00:00 2001
From: Andrew Victor <andrew@sanpeople.com>
Date: Mon, 15 Oct 2007 14:27:41 +0100
Subject: [ARM] 4603/1: KS8695: debugfs interface to view pin state

This patch adds a debug interface (if CONFIG_DEBUG_FS is selected) to
display the basic configuration and current state of the GPIO pins on
the Kendin/Micrel KS8695 processor.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-ks8695/gpio.c             | 83 +++++++++++++++++++++++++++++++++
 include/asm-arm/arch-ks8695/regs-gpio.h |  2 +
 2 files changed, 85 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-ks8695/gpio.c b/arch/arm/mach-ks8695/gpio.c
index b1aa3cb3d4a3..5e46191c0af9 100644
--- a/arch/arm/mach-ks8695/gpio.c
+++ b/arch/arm/mach-ks8695/gpio.c
@@ -20,6 +20,8 @@
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/init.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
 #include <linux/module.h>
 
 #include <asm/io.h>
@@ -216,3 +218,84 @@ int irq_to_gpio(unsigned int irq)
 	return (irq - KS8695_IRQ_EXTERN0);
 }
 EXPORT_SYMBOL(irq_to_gpio);
+
+
+/* .... Debug interface ..................................................... */
+
+#ifdef CONFIG_DEBUG_FS
+
+static int ks8695_gpio_show(struct seq_file *s, void *unused)
+{
+	unsigned int enable[] = { IOPC_IOEINT0EN, IOPC_IOEINT1EN, IOPC_IOEINT2EN, IOPC_IOEINT3EN, IOPC_IOTIM0EN, IOPC_IOTIM1EN };
+	unsigned int intmask[] = { IOPC_IOEINT0TM, IOPC_IOEINT1TM, IOPC_IOEINT2TM, IOPC_IOEINT3TM };
+	unsigned long mode, ctrl, data;
+	int i;
+
+	mode = __raw_readl(KS8695_GPIO_VA + KS8695_IOPM);
+	ctrl = __raw_readl(KS8695_GPIO_VA + KS8695_IOPC);
+	data = __raw_readl(KS8695_GPIO_VA + KS8695_IOPD);
+
+	seq_printf(s, "Pin\tI/O\tFunction\tState\n\n");
+
+	for (i = KS8695_GPIO_0; i <= KS8695_GPIO_15 ; i++) {
+		seq_printf(s, "%i:\t", i);
+
+		seq_printf(s, "%s\t", (mode & IOPM_(i)) ? "Output" : "Input");
+
+		if (i <= KS8695_GPIO_3) {
+			if (ctrl & enable[i]) {
+				seq_printf(s, "EXT%i ", i);
+
+				switch ((ctrl & intmask[i]) >> (4 * i)) {
+					case IOPC_TM_LOW:
+						seq_printf(s, "(Low)");		break;
+					case IOPC_TM_HIGH:
+						seq_printf(s, "(High)");	break;
+					case IOPC_TM_RISING:
+						seq_printf(s, "(Rising)");	break;
+					case IOPC_TM_FALLING:
+						seq_printf(s, "(Falling)");	break;
+					case IOPC_TM_EDGE:
+						seq_printf(s, "(Edges)");	break;
+				}
+			}
+			else
+				seq_printf(s, "GPIO\t");
+		}
+		else if (i <= KS8695_GPIO_5) {
+			if (ctrl & enable[i])
+				seq_printf(s, "TOUT%i\t", i - KS8695_GPIO_4);
+			else
+				seq_printf(s, "GPIO\t");
+		}
+		else
+			seq_printf(s, "GPIO\t");
+
+		seq_printf(s, "\t");
+
+		seq_printf(s, "%i\n", (data & IOPD_(i)) ? 1 : 0);
+	}
+	return 0;
+}
+
+static int ks8695_gpio_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, ks8695_gpio_show, NULL);
+}
+
+static const struct file_operations ks8695_gpio_operations = {
+	.open		= ks8695_gpio_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int __init ks8695_gpio_debugfs_init(void)
+{
+	/* /sys/kernel/debug/ks8695_gpio */
+	(void) debugfs_create_file("ks8695_gpio", S_IFREG | S_IRUGO, NULL, NULL, &ks8695_gpio_operations);
+	return 0;
+}
+postcore_initcall(ks8695_gpio_debugfs_init);
+
+#endif
diff --git a/include/asm-arm/arch-ks8695/regs-gpio.h b/include/asm-arm/arch-ks8695/regs-gpio.h
index 57fcf9fc82e4..6b95d77aea19 100644
--- a/include/asm-arm/arch-ks8695/regs-gpio.h
+++ b/include/asm-arm/arch-ks8695/regs-gpio.h
@@ -49,5 +49,7 @@
 #define IOPC_TM_FALLING		(4)		/* Falling Edge Detection */
 #define IOPC_TM_EDGE		(6)		/* Both Edge Detection */
 
+/* Port Data Register */
+#define IOPD_(x)		(1 << (x))	/* Signal Level of GPIO Pin x */
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 3042102a28501510a409fe86962f20369e325cf2 Mon Sep 17 00:00:00 2001
From: Brian Swetland <swetland@google.com>
Date: Mon, 26 Nov 2007 04:11:43 -0800
Subject: [ARM] msm: core platform support for ARCH_MSM7X00A

- core header files for arch-msm
- Kconfig and Makefiles to enable ARCH_MSM7X00A builds
- MSM7X00A specific arch_idle
- peripheral iomap and irq number definitions

Signed-off-by: Brian Swetland <swetland@google.com>
---
 arch/arm/Kconfig                       |  11 ++++
 arch/arm/Makefile                      |   1 +
 arch/arm/mach-msm/Makefile             |   2 +
 arch/arm/mach-msm/Makefile.boot        |   3 +
 arch/arm/mach-msm/idle.S               |  36 ++++++++++++
 arch/arm/mach-msm/io.c                 |  85 +++++++++++++++++++++++++++
 arch/arm/mm/Kconfig                    |   3 +-
 include/asm-arm/arch-msm/board.h       |  37 ++++++++++++
 include/asm-arm/arch-msm/debug-macro.S |  40 +++++++++++++
 include/asm-arm/arch-msm/dma.h         |   1 +
 include/asm-arm/arch-msm/entry-macro.S |  38 ++++++++++++
 include/asm-arm/arch-msm/hardware.h    |  18 ++++++
 include/asm-arm/arch-msm/io.h          |  33 +++++++++++
 include/asm-arm/arch-msm/irqs.h        |  89 ++++++++++++++++++++++++++++
 include/asm-arm/arch-msm/memory.h      |  27 +++++++++
 include/asm-arm/arch-msm/msm_iomap.h   | 104 +++++++++++++++++++++++++++++++++
 include/asm-arm/arch-msm/system.h      |  23 ++++++++
 include/asm-arm/arch-msm/timex.h       |  20 +++++++
 include/asm-arm/arch-msm/uncompress.h  |  36 ++++++++++++
 include/asm-arm/arch-msm/vmalloc.h     |  22 +++++++
 20 files changed, 628 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-msm/Makefile
 create mode 100644 arch/arm/mach-msm/Makefile.boot
 create mode 100644 arch/arm/mach-msm/idle.S
 create mode 100644 arch/arm/mach-msm/io.c
 create mode 100644 include/asm-arm/arch-msm/board.h
 create mode 100644 include/asm-arm/arch-msm/debug-macro.S
 create mode 100644 include/asm-arm/arch-msm/dma.h
 create mode 100644 include/asm-arm/arch-msm/entry-macro.S
 create mode 100644 include/asm-arm/arch-msm/hardware.h
 create mode 100644 include/asm-arm/arch-msm/io.h
 create mode 100644 include/asm-arm/arch-msm/irqs.h
 create mode 100644 include/asm-arm/arch-msm/memory.h
 create mode 100644 include/asm-arm/arch-msm/msm_iomap.h
 create mode 100644 include/asm-arm/arch-msm/system.h
 create mode 100644 include/asm-arm/arch-msm/timex.h
 create mode 100644 include/asm-arm/arch-msm/uncompress.h
 create mode 100644 include/asm-arm/arch-msm/vmalloc.h

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a04f507e7f2c..89c3811132c2 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -409,6 +409,17 @@ config ARCH_OMAP
 	help
 	  Support for TI's OMAP platform (OMAP1 and OMAP2).
 
+config ARCH_MSM7X00A
+	bool "Qualcomm MSM7X00A"
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
+	help
+	  Support for Qualcomm MSM7X00A based systems.  This runs on the ARM11
+	  apps processor of the MSM7X00A and depends on a shared memory
+	  interface to the ARM9 modem processor which runs the baseband stack
+	  and controls some vital subsystems (clock and power control, etc).
+	  <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
+
 endchoice
 
 source "arch/arm/mach-clps711x/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 35e56c99ad1d..dd220d189843 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -139,6 +139,7 @@ endif
  machine-$(CONFIG_ARCH_KS8695)     := ks8695
   incdir-$(CONFIG_ARCH_MXC)	   := mxc
  machine-$(CONFIG_ARCH_MX3)	   := mx3
+ machine-$(CONFIG_ARCH_MSM7X00A)   := msm
 
 ifeq ($(CONFIG_ARCH_EBSA110),y)
 # This is what happens if you forget the IOCS16 line.
diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
new file mode 100644
index 000000000000..feb9e469df9a
--- /dev/null
+++ b/arch/arm/mach-msm/Makefile
@@ -0,0 +1,2 @@
+obj-y += io.o idle.o 
+
diff --git a/arch/arm/mach-msm/Makefile.boot b/arch/arm/mach-msm/Makefile.boot
new file mode 100644
index 000000000000..24dfbf8c07c4
--- /dev/null
+++ b/arch/arm/mach-msm/Makefile.boot
@@ -0,0 +1,3 @@
+  zreladdr-y		:= 0x10008000
+params_phys-y		:= 0x10000100
+initrd_phys-y		:= 0x10800000
diff --git a/arch/arm/mach-msm/idle.S b/arch/arm/mach-msm/idle.S
new file mode 100644
index 000000000000..2b1cb7f16943
--- /dev/null
+++ b/arch/arm/mach-msm/idle.S
@@ -0,0 +1,36 @@
+/* linux/include/asm-arm/arch-msm/idle.S
+ *
+ * Idle processing for MSM7K - work around bugs with SWFI.
+ *
+ * Copyright (c) 2007 QUALCOMM Incorporated.
+ * Copyright (C) 2007 Google, Inc. 
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */ 
+		
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+ENTRY(arch_idle)
+#ifdef CONFIG_MSM7X00A_IDLE
+	mrc     p15, 0, r1, c1, c0, 0    /* read current CR    */
+	bic     r0, r1, #(1 << 2)        /* clear dcache bit   */
+	bic     r0, r0, #(1 << 12)       /* clear icache bit   */
+	mcr     p15, 0, r0, c1, c0, 0    /* disable d/i cache  */
+
+	mov     r0, #0                   /* prepare wfi value  */
+	mcr     p15, 0, r0, c7, c10, 0   /* flush the cache    */
+	mcr     p15, 0, r0, c7, c10, 4   /* memory barrier     */
+	mcr     p15, 0, r0, c7, c0, 4    /* wait for interrupt */
+
+	mcr     p15, 0, r1, c1, c0, 0    /* restore d/i cache  */
+#endif
+	mov     pc, lr
diff --git a/arch/arm/mach-msm/io.c b/arch/arm/mach-msm/io.c
new file mode 100644
index 000000000000..c39edb994a88
--- /dev/null
+++ b/arch/arm/mach-msm/io.c
@@ -0,0 +1,85 @@
+/* arch/arm/mach-msm/io.c
+ *
+ * MSM7K io support
+ *
+ * Copyright (C) 2007 Google, Inc.
+ * Author: Brian Swetland <swetland@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/hardware.h>
+#include <asm/io.h>
+#include <asm/page.h>
+#include <asm/arch/msm_iomap.h>
+#include <asm/mach/map.h>
+
+#include <asm/arch/board.h>
+
+#define MSM_DEVICE(name) { \
+		.virtual = MSM_##name##_BASE, \
+		.pfn = __phys_to_pfn(MSM_##name##_PHYS), \
+		.length = MSM_##name##_SIZE, \
+		.type = MT_DEVICE_NONSHARED, \
+	 }
+
+static struct map_desc msm_io_desc[] __initdata = {
+	MSM_DEVICE(VIC),
+	MSM_DEVICE(CSR),
+	MSM_DEVICE(GPT),
+	MSM_DEVICE(DMOV),
+	MSM_DEVICE(UART1),
+	MSM_DEVICE(UART2),
+	MSM_DEVICE(UART3),
+	MSM_DEVICE(I2C),
+	MSM_DEVICE(GPIO1),
+	MSM_DEVICE(GPIO2),
+	MSM_DEVICE(HSUSB),
+	MSM_DEVICE(CLK_CTL),
+	MSM_DEVICE(PMDH),
+	MSM_DEVICE(EMDH),
+	MSM_DEVICE(MDP),
+	{
+		.virtual =  MSM_SHARED_RAM_BASE,
+		.pfn =      __phys_to_pfn(MSM_SHARED_RAM_PHYS),
+		.length =   MSM_SHARED_RAM_SIZE,
+		.type =     MT_DEVICE,
+	},
+};
+
+void __init msm_map_common_io(void)
+{
+	/* Make sure the peripheral register window is closed, since
+	 * we will use PTE flags (TEX[1]=1,B=0,C=1) to determine which
+	 * pages are peripheral interface or not.
+	 */
+	asm("mcr p15, 0, %0, c15, c2, 4" : : "r" (0));
+
+	iotable_init(msm_io_desc, ARRAY_SIZE(msm_io_desc));
+}
+
+void __iomem *
+__msm_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype)
+{
+	if (mtype == MT_DEVICE) {
+		/* The peripherals in the 88000000 - D0000000 range
+		 * are only accessable by type MT_DEVICE_NONSHARED.
+		 * Adjust mtype as necessary to make this "just work."
+		 */
+		if ((phys_addr >= 0x88000000) && (phys_addr < 0xD0000000))
+			mtype = MT_DEVICE_NONSHARED;
+	}
+
+	return __arm_ioremap(phys_addr, size, mtype);
+}
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 7868f4dc1d00..bc2ca3c03a48 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -345,8 +345,9 @@ config CPU_XSC3
 # ARMv6
 config CPU_V6
 	bool "Support ARM V6 processor"
-	depends on ARCH_INTEGRATOR || MACH_REALVIEW_EB || ARCH_OMAP2 || ARCH_MX3
+	depends on ARCH_INTEGRATOR || MACH_REALVIEW_EB || ARCH_OMAP2 || ARCH_MX3 || ARCH_MSM7X00A
 	default y if ARCH_MX3
+	default y if ARCH_MSM7X00A
 	select CPU_32v6
 	select CPU_ABRT_EV6
 	select CPU_CACHE_V6
diff --git a/include/asm-arm/arch-msm/board.h b/include/asm-arm/arch-msm/board.h
new file mode 100644
index 000000000000..763051f8ba14
--- /dev/null
+++ b/include/asm-arm/arch-msm/board.h
@@ -0,0 +1,37 @@
+/* linux/include/asm-arm/arch-msm/board.h
+ *
+ * Copyright (C) 2007 Google, Inc.
+ * Author: Brian Swetland <swetland@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __ASM_ARCH_MSM_BOARD_H
+#define __ASM_ARCH_MSM_BOARD_H
+
+#include <linux/types.h>
+
+/* platform device data structures */
+
+struct msm_mddi_platform_data
+{
+	void (*panel_power)(int on);
+	unsigned has_vsync_irq:1;
+};
+
+/* common init routines for use by arch/arm/mach-msm/board-*.c */
+
+void __init msm_add_devices(void);
+void __init msm_map_common_io(void);
+void __init msm_init_irq(void);
+void __init msm_init_gpio(void);
+
+#endif
diff --git a/include/asm-arm/arch-msm/debug-macro.S b/include/asm-arm/arch-msm/debug-macro.S
new file mode 100644
index 000000000000..393d5272e506
--- /dev/null
+++ b/include/asm-arm/arch-msm/debug-macro.S
@@ -0,0 +1,40 @@
+/* include/asm-arm/arch-msm7200/debug-macro.S
+ *
+ * Copyright (C) 2007 Google, Inc.
+ * Author: Brian Swetland <swetland@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <asm/hardware.h>
+#include <asm/arch/msm_iomap.h>
+
+	.macro	addruart,rx
+	@ see if the MMU is enabled and select appropriate base address
+	mrc	p15, 0, \rx, c1, c0
+	tst	\rx, #1
+	ldreq	\rx, =MSM_UART1_PHYS
+	ldrne	\rx, =MSM_UART1_BASE
+	.endm
+
+	.macro	senduart,rd,rx
+	str	\rd, [\rx, #0x0C]
+	.endm
+
+	.macro	waituart,rd,rx
+	@ wait for TX_READY
+1:	ldr	\rd, [\rx, #0x08]
+	tst	\rd, #0x04
+	beq	1b
+	.endm
+
+	.macro	busyuart,rd,rx
+	.endm
diff --git a/include/asm-arm/arch-msm/dma.h b/include/asm-arm/arch-msm/dma.h
new file mode 100644
index 000000000000..8b137891791f
--- /dev/null
+++ b/include/asm-arm/arch-msm/dma.h
@@ -0,0 +1 @@
+
diff --git a/include/asm-arm/arch-msm/entry-macro.S b/include/asm-arm/arch-msm/entry-macro.S
new file mode 100644
index 000000000000..ee24aece4cb0
--- /dev/null
+++ b/include/asm-arm/arch-msm/entry-macro.S
@@ -0,0 +1,38 @@
+/* include/asm-arm/arch-msm7200/entry-macro.S
+ *
+ * Copyright (C) 2007 Google, Inc.
+ * Author: Brian Swetland <swetland@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <asm/arch/msm_iomap.h>
+
+ 	.macro	disable_fiq
+	.endm
+
+	.macro	get_irqnr_preamble, base, tmp
+	@ enable imprecise aborts
+	cpsie	a
+	mov	\base, #MSM_VIC_BASE
+	.endm
+
+	.macro	arch_ret_to_user, tmp1, tmp2
+	.endm
+
+	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+	@ 0xD0 has irq# or old irq# if the irq has been handled
+	@ 0xD4 has irq# or -1 if none pending *but* if you just
+	@ read 0xD4 you never get the first irq for some reason
+	ldr	\irqnr, [\base, #0xD0]
+	ldr	\irqnr, [\base, #0xD4]
+	cmp	\irqnr, #0xffffffff
+	.endm
diff --git a/include/asm-arm/arch-msm/hardware.h b/include/asm-arm/arch-msm/hardware.h
new file mode 100644
index 000000000000..89af2b70182f
--- /dev/null
+++ b/include/asm-arm/arch-msm/hardware.h
@@ -0,0 +1,18 @@
+/* linux/include/asm-arm/arch-msm/hardware.h
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __ASM_ARCH_MSM_HARDWARE_H
+
+#endif
diff --git a/include/asm-arm/arch-msm/io.h b/include/asm-arm/arch-msm/io.h
new file mode 100644
index 000000000000..4645ae26b62a
--- /dev/null
+++ b/include/asm-arm/arch-msm/io.h
@@ -0,0 +1,33 @@
+/* include/asm-arm/arch-msm/io.h
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+#define __arch_ioremap __msm_ioremap
+#define __arch_iounmap __iounmap
+
+void __iomem *__msm_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype);
+
+static inline void __iomem *__io(unsigned long addr)
+{
+	return (void __iomem *)addr;
+}
+#define __io(a)         __io(a)
+#define __mem_pci(a)    (a)
+
+#endif
diff --git a/include/asm-arm/arch-msm/irqs.h b/include/asm-arm/arch-msm/irqs.h
new file mode 100644
index 000000000000..565430cfaa7e
--- /dev/null
+++ b/include/asm-arm/arch-msm/irqs.h
@@ -0,0 +1,89 @@
+/* linux/include/asm-arm/arch-msm/irqs.h
+ *
+ * Copyright (C) 2007 Google, Inc.
+ * Author: Brian Swetland <swetland@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __ASM_ARCH_MSM_IRQS_H
+
+/* MSM ARM11 Interrupt Numbers */
+/* See 80-VE113-1 A, pp219-221     */
+
+#define INT_A9_M2A_0         0
+#define INT_A9_M2A_1         1
+#define INT_A9_M2A_2         2
+#define INT_A9_M2A_3         3
+#define INT_A9_M2A_4         4
+#define INT_A9_M2A_5         5
+#define INT_A9_M2A_6         6
+#define INT_GP_TIMER_EXP     7
+#define INT_DEBUG_TIMER_EXP  8
+#define INT_UART1            9
+#define INT_UART2            10
+#define INT_UART3            11
+#define INT_UART1_RX         12
+#define INT_UART2_RX         13
+#define INT_UART3_RX         14
+#define INT_USB_OTG          15
+#define INT_MDDI_PRI         16
+#define INT_MDDI_EXT         17
+#define INT_MDDI_CLIENT      18
+#define INT_MDP              19
+#define INT_GRAPHICS         20
+#define INT_ADM_AARM         21
+#define INT_ADSP_A11         22
+#define INT_ADSP_A9_A11      23
+#define INT_SDC1_0           24
+#define INT_SDC1_1           25
+#define INT_SDC2_0           26
+#define INT_SDC2_1           27
+#define INT_KEYSENSE         28
+#define INT_TCHSCRN_SSBI     29
+#define INT_TCHSCRN1         30
+#define INT_TCHSCRN2         31
+
+#define INT_GPIO_GROUP1      (32 + 0)
+#define INT_GPIO_GROUP2      (32 + 1)
+#define INT_PWB_I2C          (32 + 2)
+#define INT_SOFTRESET        (32 + 3)
+#define INT_NAND_WR_ER_DONE  (32 + 4)
+#define INT_NAND_OP_DONE     (32 + 5)
+#define INT_PBUS_ARM11       (32 + 6)
+#define INT_AXI_MPU_SMI      (32 + 7)
+#define INT_AXI_MPU_EBI1     (32 + 8)
+#define INT_AD_HSSD          (32 + 9)
+#define INT_ARM11_PMU        (32 + 10)
+#define INT_ARM11_DMA        (32 + 11)
+#define INT_TSIF_IRQ         (32 + 12)
+#define INT_UART1DM_IRQ      (32 + 13)
+#define INT_UART1DM_RX       (32 + 14)
+#define INT_USB_HS           (32 + 15)
+#define INT_SDC3_0           (32 + 16)
+#define INT_SDC3_1           (32 + 17)
+#define INT_SDC4_0           (32 + 18)
+#define INT_SDC4_1           (32 + 19)
+#define INT_UART2DM_RX       (32 + 20)
+#define INT_UART2DM_IRQ      (32 + 21)
+
+/* 22-31 are reserved */
+
+#define MSM_IRQ_BIT(irq)     (1 << ((irq) & 31))
+
+#define NR_MSM_IRQS 64
+#define NR_GPIO_IRQS 122
+#define NR_BOARD_IRQS 64
+#define NR_IRQS (NR_MSM_IRQS + NR_GPIO_IRQS + NR_BOARD_IRQS)
+
+#define MSM_GPIO_TO_INT(n) (NR_MSM_IRQS + (n))
+
+#endif
diff --git a/include/asm-arm/arch-msm/memory.h b/include/asm-arm/arch-msm/memory.h
new file mode 100644
index 000000000000..b5ce0e9ac86d
--- /dev/null
+++ b/include/asm-arm/arch-msm/memory.h
@@ -0,0 +1,27 @@
+/* linux/include/asm-arm/arch-msm/memory.h
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+/* physical offset of RAM */
+#define PHYS_OFFSET		UL(0x10000000)
+
+/* bus address and physical addresses are identical */
+#define __virt_to_bus(x)	__virt_to_phys(x)
+#define __bus_to_virt(x)	__phys_to_virt(x)
+
+#endif
+
diff --git a/include/asm-arm/arch-msm/msm_iomap.h b/include/asm-arm/arch-msm/msm_iomap.h
new file mode 100644
index 000000000000..b8955cc26fec
--- /dev/null
+++ b/include/asm-arm/arch-msm/msm_iomap.h
@@ -0,0 +1,104 @@
+/* linux/include/asm-arm/arch-msm/msm_iomap.h
+ *
+ * Copyright (C) 2007 Google, Inc.
+ * Author: Brian Swetland <swetland@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ *
+ * The MSM peripherals are spread all over across 768MB of physical
+ * space, which makes just having a simple IO_ADDRESS macro to slide
+ * them into the right virtual location rough.  Instead, we will
+ * provide a master phys->virt mapping for peripherals here.
+ *
+ */
+
+#ifndef __ASM_ARCH_MSM_IOMAP_H
+#define __ASM_ARCH_MSM_IOMAP_H
+
+#include <asm/sizes.h>
+
+/* Physical base address and size of peripherals.
+ * Ordered by the virtual base addresses they will be mapped at.
+ *
+ * MSM_VIC_BASE must be an value that can be loaded via a "mov"
+ * instruction, otherwise entry-macro.S will not compile.
+ *
+ * If you add or remove entries here, you'll want to edit the
+ * msm_io_desc array in arch/arm/mach-msm/io.c to reflect your
+ * changes.
+ *
+ */
+
+#define MSM_VIC_BASE          0xE0000000
+#define MSM_VIC_PHYS          0xC0000000
+#define MSM_VIC_SIZE          SZ_4K
+
+#define MSM_CSR_BASE          0xE0001000
+#define MSM_CSR_PHYS          0xC0100000
+#define MSM_CSR_SIZE          SZ_4K
+
+#define MSM_GPT_PHYS          MSM_CSR_PHYS
+#define MSM_GPT_BASE          MSM_CSR_BASE
+#define MSM_GPT_SIZE          SZ_4K
+
+#define MSM_DMOV_BASE         0xE0002000
+#define MSM_DMOV_PHYS         0xA9700000
+#define MSM_DMOV_SIZE         SZ_4K
+
+#define MSM_UART1_BASE        0xE0003000
+#define MSM_UART1_PHYS        0xA9A00000
+#define MSM_UART1_SIZE        SZ_4K
+
+#define MSM_UART2_BASE        0xE0004000
+#define MSM_UART2_PHYS        0xA9B00000
+#define MSM_UART2_SIZE        SZ_4K
+
+#define MSM_UART3_BASE        0xE0005000
+#define MSM_UART3_PHYS        0xA9C00000
+#define MSM_UART3_SIZE        SZ_4K
+
+#define MSM_I2C_BASE          0xE0006000
+#define MSM_I2C_PHYS          0xA9900000
+#define MSM_I2C_SIZE          SZ_4K
+
+#define MSM_GPIO1_BASE        0xE0007000
+#define MSM_GPIO1_PHYS        0xA9200000
+#define MSM_GPIO1_SIZE        SZ_4K
+
+#define MSM_GPIO2_BASE        0xE0008000
+#define MSM_GPIO2_PHYS        0xA9300000
+#define MSM_GPIO2_SIZE        SZ_4K
+
+#define MSM_HSUSB_BASE        0xE0009000
+#define MSM_HSUSB_PHYS        0xA0800000
+#define MSM_HSUSB_SIZE        SZ_4K
+
+#define MSM_CLK_CTL_BASE      0xE000A000
+#define MSM_CLK_CTL_PHYS      0xA8600000
+#define MSM_CLK_CTL_SIZE      SZ_4K
+
+#define MSM_PMDH_BASE         0xE000B000
+#define MSM_PMDH_PHYS         0xAA600000
+#define MSM_PMDH_SIZE         SZ_4K
+
+#define MSM_EMDH_BASE         0xE000C000
+#define MSM_EMDH_PHYS         0xAA700000
+#define MSM_EMDH_SIZE         SZ_4K
+
+#define MSM_MDP_BASE          0xE0010000
+#define MSM_MDP_PHYS          0xAA200000
+#define MSM_MDP_SIZE          0x000F0000
+
+#define MSM_SHARED_RAM_BASE   0xE0100000
+#define MSM_SHARED_RAM_PHYS   0x01F00000
+#define MSM_SHARED_RAM_SIZE   SZ_1M
+
+#endif
diff --git a/include/asm-arm/arch-msm/system.h b/include/asm-arm/arch-msm/system.h
new file mode 100644
index 000000000000..7c5544bdd0c7
--- /dev/null
+++ b/include/asm-arm/arch-msm/system.h
@@ -0,0 +1,23 @@
+/* linux/include/asm-arm/arch-msm/system.h
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <asm/hardware.h>
+
+void arch_idle(void);
+
+static inline void arch_reset(char mode)
+{
+	for (;;) ;  /* depends on IPC w/ other core */
+}
diff --git a/include/asm-arm/arch-msm/timex.h b/include/asm-arm/arch-msm/timex.h
new file mode 100644
index 000000000000..154b23fb3599
--- /dev/null
+++ b/include/asm-arm/arch-msm/timex.h
@@ -0,0 +1,20 @@
+/* linux/include/asm-arm/arch-msm/timex.h
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __ASM_ARCH_MSM_TIMEX_H
+
+#define CLOCK_TICK_RATE		1000000
+
+#endif
diff --git a/include/asm-arm/arch-msm/uncompress.h b/include/asm-arm/arch-msm/uncompress.h
new file mode 100644
index 000000000000..e91ed786ffec
--- /dev/null
+++ b/include/asm-arm/arch-msm/uncompress.h
@@ -0,0 +1,36 @@
+/* linux/include/asm-arm/arch-msm/uncompress.h
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __ASM_ARCH_MSM_UNCOMPRESS_H
+
+#include "hardware.h"
+
+static void putc(int c)
+{
+}
+
+static inline void flush(void)
+{
+}
+
+static inline void arch_decomp_setup(void)
+{
+}
+
+static inline void arch_decomp_wdog(void)
+{
+}
+
+#endif
diff --git a/include/asm-arm/arch-msm/vmalloc.h b/include/asm-arm/arch-msm/vmalloc.h
new file mode 100644
index 000000000000..60f8d910e825
--- /dev/null
+++ b/include/asm-arm/arch-msm/vmalloc.h
@@ -0,0 +1,22 @@
+/* linux/include/asm-arm/arch-msm/vmalloc.h
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __ASM_ARCH_MSM_VMALLOC_H
+#define __ASM_ARCH_MSM_VMALLOC_H
+
+#define VMALLOC_END	  (PAGE_OFFSET + 0x10000000)
+
+#endif
+
-- 
cgit v1.2.3-59-g8ed1b


From 3e4ea3728a38b224d8b35ff8a9281407f603aa20 Mon Sep 17 00:00:00 2001
From: Arve Hjønnevåg <arve@android.com>
Date: Mon, 26 Nov 2007 04:11:58 -0800
Subject: [ARM] msm: irq and timer support for ARCH_MSM7X00A

- Vectored Interrupt Controller support
- Timer support using the GPT and DGT timers

Signed-off-by: Brian Swetland <swetland@google.com>
---
 arch/arm/mach-msm/Makefile |   2 +-
 arch/arm/mach-msm/irq.c    | 154 ++++++++++++++++++++++++++++++++++
 arch/arm/mach-msm/timer.c  | 205 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 360 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-msm/irq.c
 create mode 100644 arch/arm/mach-msm/timer.c

(limited to 'arch')

diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
index feb9e469df9a..a42d1a019cd2 100644
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile
@@ -1,2 +1,2 @@
-obj-y += io.o idle.o 
+obj-y += io.o idle.o irq.o timer.o
 
diff --git a/arch/arm/mach-msm/irq.c b/arch/arm/mach-msm/irq.c
new file mode 100644
index 000000000000..24158040b789
--- /dev/null
+++ b/arch/arm/mach-msm/irq.c
@@ -0,0 +1,154 @@
+/* linux/arch/arm/mach-msm/irq.c
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/timer.h>
+
+#include <linux/irq.h>
+#include <asm/hardware.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/msm_iomap.h>
+
+#define VIC_REG(off) (MSM_VIC_BASE + (off))
+
+#define VIC_INT_SELECT0     VIC_REG(0x0000)  /* 1: FIQ, 0: IRQ */
+#define VIC_INT_SELECT1     VIC_REG(0x0004)  /* 1: FIQ, 0: IRQ */
+#define VIC_INT_EN0         VIC_REG(0x0010)
+#define VIC_INT_EN1         VIC_REG(0x0014)
+#define VIC_INT_ENCLEAR0    VIC_REG(0x0020)
+#define VIC_INT_ENCLEAR1    VIC_REG(0x0024)
+#define VIC_INT_ENSET0      VIC_REG(0x0030)
+#define VIC_INT_ENSET1      VIC_REG(0x0034)
+#define VIC_INT_TYPE0       VIC_REG(0x0040)  /* 1: EDGE, 0: LEVEL  */
+#define VIC_INT_TYPE1       VIC_REG(0x0044)  /* 1: EDGE, 0: LEVEL  */
+#define VIC_INT_POLARITY0   VIC_REG(0x0050)  /* 1: NEG, 0: POS */
+#define VIC_INT_POLARITY1   VIC_REG(0x0054)  /* 1: NEG, 0: POS */
+#define VIC_NO_PEND_VAL     VIC_REG(0x0060)
+#define VIC_INT_MASTEREN    VIC_REG(0x0064)  /* 1: IRQ, 2: FIQ     */
+#define VIC_PROTECTION      VIC_REG(0x006C)  /* 1: ENABLE          */
+#define VIC_CONFIG          VIC_REG(0x0068)  /* 1: USE ARM1136 VIC */
+#define VIC_IRQ_STATUS0     VIC_REG(0x0080)
+#define VIC_IRQ_STATUS1     VIC_REG(0x0084)
+#define VIC_FIQ_STATUS0     VIC_REG(0x0090)
+#define VIC_FIQ_STATUS1     VIC_REG(0x0094)
+#define VIC_RAW_STATUS0     VIC_REG(0x00A0)
+#define VIC_RAW_STATUS1     VIC_REG(0x00A4)
+#define VIC_INT_CLEAR0      VIC_REG(0x00B0)
+#define VIC_INT_CLEAR1      VIC_REG(0x00B4)
+#define VIC_SOFTINT0        VIC_REG(0x00C0)
+#define VIC_SOFTINT1        VIC_REG(0x00C4)
+#define VIC_IRQ_VEC_RD      VIC_REG(0x00D0)  /* pending int # */
+#define VIC_IRQ_VEC_PEND_RD VIC_REG(0x00D4)  /* pending vector addr */
+#define VIC_IRQ_VEC_WR      VIC_REG(0x00D8)
+#define VIC_IRQ_IN_SERVICE  VIC_REG(0x00E0)
+#define VIC_IRQ_IN_STACK    VIC_REG(0x00E4)
+#define VIC_TEST_BUS_SEL    VIC_REG(0x00E8)
+
+#define VIC_VECTPRIORITY(n) VIC_REG(0x0200+((n) * 4))
+#define VIC_VECTADDR(n)     VIC_REG(0x0400+((n) * 4))
+
+static void msm_irq_ack(unsigned int irq)
+{
+	unsigned reg = VIC_INT_CLEAR0 + ((irq & 32) ? 4 : 0);
+	irq = 1 << (irq & 31);
+	writel(irq, reg);
+}
+
+static void msm_irq_mask(unsigned int irq)
+{
+	unsigned reg = VIC_INT_ENCLEAR0 + ((irq & 32) ? 4 : 0);
+	writel(1 << (irq & 31), reg);
+}
+
+static void msm_irq_unmask(unsigned int irq)
+{
+	unsigned reg = VIC_INT_ENSET0 + ((irq & 32) ? 4 : 0);
+	writel(1 << (irq & 31), reg);
+}
+
+static int msm_irq_set_wake(unsigned int irq, unsigned int on)
+{
+	return -EINVAL;
+}
+
+static int msm_irq_set_type(unsigned int irq, unsigned int flow_type)
+{
+	unsigned treg = VIC_INT_TYPE0 + ((irq & 32) ? 4 : 0);
+	unsigned preg = VIC_INT_POLARITY0 + ((irq & 32) ? 4 : 0);
+	int b = 1 << (irq & 31);
+
+	if (flow_type & (IRQF_TRIGGER_FALLING | IRQF_TRIGGER_LOW))
+		writel(readl(preg) | b, preg);
+	if (flow_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_HIGH))
+		writel(readl(preg) & (~b), preg);
+
+	if (flow_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) {
+		writel(readl(treg) | b, treg);
+		set_irq_handler(irq, handle_edge_irq);
+	}
+	if (flow_type & (IRQF_TRIGGER_HIGH | IRQF_TRIGGER_LOW)) {
+		writel(readl(treg) & (~b), treg);
+		set_irq_handler(irq, handle_level_irq);
+	}
+	return 0;
+}
+
+static struct irq_chip msm_irq_chip = {
+	.name      = "msm",
+	.ack       = msm_irq_ack,
+	.mask      = msm_irq_mask,
+	.unmask    = msm_irq_unmask,
+	.set_wake  = msm_irq_set_wake,
+	.set_type  = msm_irq_set_type,
+};
+
+void __init msm_init_irq(void)
+{
+	unsigned n;
+
+	/* select level interrupts */
+	writel(0, VIC_INT_TYPE0);
+	writel(0, VIC_INT_TYPE1);
+
+	/* select highlevel interrupts */
+	writel(0, VIC_INT_POLARITY0);
+	writel(0, VIC_INT_POLARITY1);
+
+	/* select IRQ for all INTs */
+	writel(0, VIC_INT_SELECT0);
+	writel(0, VIC_INT_SELECT1);
+
+	/* disable all INTs */
+	writel(0, VIC_INT_EN0);
+	writel(0, VIC_INT_EN1);
+
+	/* don't use 1136 vic */
+	writel(0, VIC_CONFIG);
+
+	/* enable interrupt controller */
+	writel(1, VIC_INT_MASTEREN);
+
+	for (n = 0; n < NR_MSM_IRQS; n++) {
+		set_irq_chip(n, &msm_irq_chip);
+		set_irq_handler(n, handle_level_irq);
+		set_irq_flags(n, IRQF_VALID);
+	}
+}
diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c
new file mode 100644
index 000000000000..bd4732d1ab3e
--- /dev/null
+++ b/arch/arm/mach-msm/timer.c
@@ -0,0 +1,205 @@
+/* linux/arch/arm/mach-msm/timer.c
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/time.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/clk.h>
+#include <linux/clockchips.h>
+#include <linux/delay.h>
+
+#include <asm/mach/time.h>
+#include <asm/arch/msm_iomap.h>
+
+#include <asm/io.h>
+
+#define MSM_DGT_BASE (MSM_GPT_BASE + 0x10)
+#define MSM_DGT_SHIFT (5)
+
+#define TIMER_MATCH_VAL         0x0000
+#define TIMER_COUNT_VAL         0x0004
+#define TIMER_ENABLE            0x0008
+#define TIMER_ENABLE_CLR_ON_MATCH_EN    2
+#define TIMER_ENABLE_EN                 1
+#define TIMER_CLEAR             0x000C
+
+#define CSR_PROTECTION          0x0020
+#define CSR_PROTECTION_EN               1
+
+#define GPT_HZ 32768
+#define DGT_HZ 19200000 /* 19.2 MHz or 600 KHz after shift */
+
+struct msm_clock {
+	struct clock_event_device   clockevent;
+	struct clocksource          clocksource;
+	struct irqaction            irq;
+	uint32_t                    regbase;
+	uint32_t                    freq;
+	uint32_t                    shift;
+};
+
+static irqreturn_t msm_timer_interrupt(int irq, void *dev_id)
+{
+	struct clock_event_device *evt = dev_id;
+	evt->event_handler(evt);
+	return IRQ_HANDLED;
+}
+
+static cycle_t msm_gpt_read(void)
+{
+	return readl(MSM_GPT_BASE + TIMER_COUNT_VAL);
+}
+
+static cycle_t msm_dgt_read(void)
+{
+	return readl(MSM_DGT_BASE + TIMER_COUNT_VAL) >> MSM_DGT_SHIFT;
+}
+
+static int msm_timer_set_next_event(unsigned long cycles,
+				    struct clock_event_device *evt)
+{
+	struct msm_clock *clock = container_of(evt, struct msm_clock, clockevent);
+	uint32_t now = readl(clock->regbase + TIMER_COUNT_VAL);
+	uint32_t alarm = now + (cycles << clock->shift);
+	int late;
+
+	writel(alarm, clock->regbase + TIMER_MATCH_VAL);
+	now = readl(clock->regbase + TIMER_COUNT_VAL);
+	late = now - alarm;
+	if (late >= (-2 << clock->shift) && late < DGT_HZ*5) {
+		printk(KERN_NOTICE "msm_timer_set_next_event(%lu) clock %s, "
+		       "alarm already expired, now %x, alarm %x, late %d\n",
+		       cycles, clock->clockevent.name, now, alarm, late);
+		return -ETIME;
+	}
+	return 0;
+}
+
+static void msm_timer_set_mode(enum clock_event_mode mode,
+			      struct clock_event_device *evt)
+{
+	struct msm_clock *clock = container_of(evt, struct msm_clock, clockevent);
+	switch (mode) {
+	case CLOCK_EVT_MODE_RESUME:
+	case CLOCK_EVT_MODE_PERIODIC:
+		break;
+	case CLOCK_EVT_MODE_ONESHOT:
+		writel(TIMER_ENABLE_EN, clock->regbase + TIMER_ENABLE);
+		break;
+	case CLOCK_EVT_MODE_UNUSED:
+	case CLOCK_EVT_MODE_SHUTDOWN:
+		writel(0, clock->regbase + TIMER_ENABLE);
+		break;
+	}
+}
+
+static struct msm_clock msm_clocks[] = {
+	{
+		.clockevent = {
+			.name           = "gp_timer",
+			.features       = CLOCK_EVT_FEAT_ONESHOT,
+			.shift          = 32,
+			.rating         = 200,
+			.set_next_event = msm_timer_set_next_event,
+			.set_mode       = msm_timer_set_mode,
+		},
+		.clocksource = {
+			.name           = "gp_timer",
+			.rating         = 200,
+			.read           = msm_gpt_read,
+			.mask           = CLOCKSOURCE_MASK(32),
+			.shift          = 24,
+			.flags          = CLOCK_SOURCE_IS_CONTINUOUS,
+		},
+		.irq = {
+			.name    = "gp_timer",
+			.flags   = IRQF_DISABLED | IRQF_TIMER | IRQF_TRIGGER_RISING,
+			.handler = msm_timer_interrupt,
+			.dev_id  = &msm_clocks[0].clockevent,
+			.irq     = INT_GP_TIMER_EXP
+		},
+		.regbase = MSM_GPT_BASE,
+		.freq = GPT_HZ
+	},
+	{
+		.clockevent = {
+			.name           = "dg_timer",
+			.features       = CLOCK_EVT_FEAT_ONESHOT,
+			.shift          = 32 + MSM_DGT_SHIFT,
+			.rating         = 300,
+			.set_next_event = msm_timer_set_next_event,
+			.set_mode       = msm_timer_set_mode,
+		},
+		.clocksource = {
+			.name           = "dg_timer",
+			.rating         = 300,
+			.read           = msm_dgt_read,
+			.mask           = CLOCKSOURCE_MASK((32 - MSM_DGT_SHIFT)),
+			.shift          = 24 - MSM_DGT_SHIFT,
+			.flags          = CLOCK_SOURCE_IS_CONTINUOUS,
+		},
+		.irq = {
+			.name    = "dg_timer",
+			.flags   = IRQF_DISABLED | IRQF_TIMER | IRQF_TRIGGER_RISING,
+			.handler = msm_timer_interrupt,
+			.dev_id  = &msm_clocks[1].clockevent,
+			.irq     = INT_DEBUG_TIMER_EXP
+		},
+		.regbase = MSM_DGT_BASE,
+		.freq = DGT_HZ >> MSM_DGT_SHIFT,
+		.shift = MSM_DGT_SHIFT
+	}
+};
+
+static void __init msm_timer_init(void)
+{
+	int i;
+	int res;
+
+	for (i = 0; i < ARRAY_SIZE(msm_clocks); i++) {
+		struct msm_clock *clock = &msm_clocks[i];
+		struct clock_event_device *ce = &clock->clockevent;
+		struct clocksource *cs = &clock->clocksource;
+		writel(0, clock->regbase + TIMER_ENABLE);
+		writel(0, clock->regbase + TIMER_CLEAR);
+		writel(~0, clock->regbase + TIMER_MATCH_VAL);
+
+		ce->mult = div_sc(clock->freq, NSEC_PER_SEC, ce->shift);
+		/* allow at least 10 seconds to notice that the timer wrapped */
+		ce->max_delta_ns =
+			clockevent_delta2ns(0xf0000000 >> clock->shift, ce);
+		/* 4 gets rounded down to 3 */
+		ce->min_delta_ns = clockevent_delta2ns(4, ce);
+		ce->cpumask = cpumask_of_cpu(0);
+
+		cs->mult = clocksource_hz2mult(clock->freq, cs->shift);
+		res = clocksource_register(cs);
+		if (res)
+			printk(KERN_ERR "msm_timer_init: clocksource_register "
+			       "failed for %s\n", cs->name);
+
+		res = setup_irq(clock->irq.irq, &clock->irq);
+		if (res)
+			printk(KERN_ERR "msm_timer_init: setup_irq "
+			       "failed for %s\n", cs->name);
+
+		clockevents_register_device(ce);
+	}
+}
+
+struct sys_timer msm_timer = {
+	.init = msm_timer_init
+};
-- 
cgit v1.2.3-59-g8ed1b


From 9e73c84c89b7c91ad5d6a141c58efbbe139f6b6c Mon Sep 17 00:00:00 2001
From: Brian Swetland <swetland@google.com>
Date: Mon, 26 Nov 2007 04:12:13 -0800
Subject: [ARM] msm: board file for MACH_HALIBUT (QCT MSM7200A)

Add support for the Qualcomm MSM7200A eval board.
Common devices are defined in common.c, to avoid excessive
cut'n'pasting them into other board files.

Signed-off-by: Brian Swetland <swetland@google.com>
---
 arch/arm/Kconfig                  |   2 +
 arch/arm/configs/msm_defconfig    | 895 ++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-msm/Kconfig         |  18 +
 arch/arm/mach-msm/Makefile        |   5 +
 arch/arm/mach-msm/board-halibut.c | 114 +++++
 arch/arm/mach-msm/common.c        | 116 +++++
 6 files changed, 1150 insertions(+)
 create mode 100644 arch/arm/configs/msm_defconfig
 create mode 100644 arch/arm/mach-msm/Kconfig
 create mode 100644 arch/arm/mach-msm/board-halibut.c
 create mode 100644 arch/arm/mach-msm/common.c

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 89c3811132c2..ec294995e63c 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -488,6 +488,8 @@ source "arch/arm/mach-davinci/Kconfig"
 
 source "arch/arm/mach-ks8695/Kconfig"
 
+source "arch/arm/mach-msm/Kconfig"
+
 # Definitions to make life easier
 config ARCH_ACORN
 	bool
diff --git a/arch/arm/configs/msm_defconfig b/arch/arm/configs/msm_defconfig
new file mode 100644
index 000000000000..ae4c5e62086a
--- /dev/null
+++ b/arch/arm/configs/msm_defconfig
@@ -0,0 +1,895 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.23
+# Wed Nov  7 01:36:45 2007
+#
+CONFIG_ARM=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+# CONFIG_GENERIC_GPIO is not set
+CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_MMU=y
+# CONFIG_NO_IOPORT is not set
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_GPIOS=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_ZONE_DMA=y
+CONFIG_VECTORS_BASE=0xffff0000
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOCK_KERNEL=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SWAP=y
+# CONFIG_SYSVIPC is not set
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_AUDIT is not set
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=17
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL=y
+CONFIG_PANIC_TIMEOUT=0
+# CONFIG_EMBEDDED is not set
+CONFIG_UID16=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_ALL is not set
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+# CONFIG_MODULES is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+CONFIG_DEFAULT_AS=y
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="anticipatory"
+
+#
+# System Type
+#
+# CONFIG_ARCH_AAEC2000 is not set
+# CONFIG_ARCH_GOLDFISH is not set
+# CONFIG_ARCH_INTEGRATOR is not set
+# CONFIG_ARCH_REALVIEW is not set
+# CONFIG_ARCH_VERSATILE is not set
+# CONFIG_ARCH_AT91 is not set
+# CONFIG_ARCH_CLPS7500 is not set
+# CONFIG_ARCH_CLPS711X is not set
+# CONFIG_ARCH_CO285 is not set
+# CONFIG_ARCH_EBSA110 is not set
+# CONFIG_ARCH_EP93XX is not set
+# CONFIG_ARCH_FOOTBRIDGE is not set
+# CONFIG_ARCH_NETX is not set
+# CONFIG_ARCH_H720X is not set
+# CONFIG_ARCH_IMX is not set
+# CONFIG_ARCH_IOP13XX is not set
+# CONFIG_ARCH_IOP32X is not set
+# CONFIG_ARCH_IOP33X is not set
+# CONFIG_ARCH_IXP23XX is not set
+# CONFIG_ARCH_IXP2000 is not set
+# CONFIG_ARCH_IXP4XX is not set
+# CONFIG_ARCH_L7200 is not set
+# CONFIG_ARCH_KS8695 is not set
+# CONFIG_ARCH_NS9XXX is not set
+# CONFIG_ARCH_MXC is not set
+# CONFIG_ARCH_PNX4008 is not set
+# CONFIG_ARCH_PXA is not set
+# CONFIG_ARCH_RPC is not set
+# CONFIG_ARCH_SA1100 is not set
+# CONFIG_ARCH_S3C2410 is not set
+# CONFIG_ARCH_SHARK is not set
+# CONFIG_ARCH_LH7A40X is not set
+# CONFIG_ARCH_DAVINCI is not set
+# CONFIG_ARCH_OMAP is not set
+CONFIG_ARCH_MSM7X00A=y
+
+#
+# Boot options
+#
+
+#
+# Power management
+#
+
+#
+# MSM7200 Board Type
+#
+CONFIG_MACH_HALIBUT=y
+CONFIG_SERIAL_MSM=y
+CONFIG_SERIAL_MSM_CONSOLE=y
+# CONFIG_SERIAL_MSM_NOINIT is not set
+CONFIG_MSM_SMD=y
+
+#
+# Processor Type
+#
+CONFIG_CPU_32=y
+CONFIG_CPU_V6=y
+# CONFIG_CPU_32v6K is not set
+CONFIG_CPU_32v6=y
+CONFIG_CPU_ABRT_EV6=y
+CONFIG_CPU_CACHE_V6=y
+CONFIG_CPU_CACHE_VIPT=y
+CONFIG_CPU_COPY_V6=y
+CONFIG_CPU_TLB_V6=y
+CONFIG_CPU_HAS_ASID=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+
+#
+# Processor Features
+#
+CONFIG_ARM_THUMB=y
+# CONFIG_CPU_ICACHE_DISABLE is not set
+# CONFIG_CPU_DCACHE_DISABLE is not set
+# CONFIG_CPU_BPREDICT_DISABLE is not set
+# CONFIG_OUTER_CACHE is not set
+
+#
+# Bus support
+#
+# CONFIG_PCI_SYSCALL is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+
+#
+# PCCARD (PCMCIA/CardBus) support
+#
+# CONFIG_PCCARD is not set
+
+#
+# Kernel Features
+#
+CONFIG_TICK_ONESHOT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_PREEMPT=y
+CONFIG_HZ=100
+CONFIG_AEABI=y
+# CONFIG_OABI_COMPAT is not set
+# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+CONFIG_RESOURCES_64BIT=y
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_BOUNCE=y
+CONFIG_VIRT_TO_BUS=y
+CONFIG_ALIGNMENT_TRAP=y
+
+#
+# Boot options
+#
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_CMDLINE="mem=64M console=ttyMSM,115200n8"
+# CONFIG_XIP_KERNEL is not set
+# CONFIG_KEXEC is not set
+
+#
+# Floating point emulation
+#
+
+#
+# At least one emulation must be selected
+#
+# CONFIG_VFP is not set
+
+#
+# Userspace binary formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Power management options
+#
+CONFIG_PM=y
+CONFIG_SUSPEND_UP_POSSIBLE=y
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+# CONFIG_PACKET is not set
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+
+#
+# QoS and/or fair queueing
+#
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+CONFIG_FW_LOADER=y
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+# CONFIG_MTD_AFS_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+# CONFIG_MTD_CFI is not set
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+CONFIG_MTD_MSM_NAND=y
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_GOLDFISH_NAND is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_RAM is not set
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+CONFIG_DUMMY=y
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+# CONFIG_AX88796 is not set
+CONFIG_SMC91X=y
+# CONFIG_DM9000 is not set
+CONFIG_NETDEV_1000=y
+CONFIG_NETDEV_10000=y
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_WAN is not set
+CONFIG_PPP=y
+# CONFIG_PPP_MULTILINK is not set
+# CONFIG_PPP_FILTER is not set
+CONFIG_PPP_ASYNC=y
+# CONFIG_PPP_SYNC_TTY is not set
+CONFIG_PPP_DEFLATE=y
+CONFIG_PPP_BSDCOMP=y
+# CONFIG_PPP_MPPE is not set
+# CONFIG_PPPOE is not set
+# CONFIG_PPPOL2TP is not set
+# CONFIG_SLIP is not set
+CONFIG_SLHC=y
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+CONFIG_MSM_RMNET=y
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_TSDEV is not set
+CONFIG_INPUT_EVDEV=y
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+CONFIG_INPUT_KEYBOARD=y
+# CONFIG_KEYBOARD_ATKBD is not set
+# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_KEYBOARD_LKKBD is not set
+# CONFIG_KEYBOARD_XTKBD is not set
+# CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_KEYBOARD_STOWAWAY is not set
+# CONFIG_KEYBOARD_GOLDFISH_EVENTS is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+CONFIG_INPUT_TOUCHSCREEN=y
+# CONFIG_TOUCHSCREEN_FUJITSU is not set
+# CONFIG_TOUCHSCREEN_GUNZE is not set
+# CONFIG_TOUCHSCREEN_ELO is not set
+# CONFIG_TOUCHSCREEN_MTOUCH is not set
+# CONFIG_TOUCHSCREEN_MK712 is not set
+# CONFIG_TOUCHSCREEN_PENMOUNT is not set
+# CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_MEP is not set
+CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI=y
+# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
+# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
+# CONFIG_TOUCHSCREEN_UCB1400 is not set
+# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
+CONFIG_INPUT_MISC=y
+# CONFIG_INPUT_ATI_REMOTE is not set
+# CONFIG_INPUT_ATI_REMOTE2 is not set
+# CONFIG_INPUT_KEYSPAN_REMOTE is not set
+# CONFIG_INPUT_POWERMATE is not set
+# CONFIG_INPUT_YEALINK is not set
+# CONFIG_INPUT_UINPUT is not set
+CONFIG_INPUT_GPIO=y
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_WATCHDOG is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_NVRAM is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+CONFIG_DCC_TTY=y
+# CONFIG_GOLDFISH_TTY is not set
+CONFIG_BINDER=y
+CONFIG_I2C=y
+CONFIG_I2C_BOARDINFO=y
+# CONFIG_I2C_CHARDEV is not set
+
+#
+# I2C Algorithms
+#
+# CONFIG_I2C_ALGOBIT is not set
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALGOPCA is not set
+
+#
+# I2C Hardware Bus support
+#
+CONFIG_I2C_MSM=y
+# CONFIG_I2C_OCORES is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_TAOS_EVM is not set
+
+#
+# Miscellaneous I2C Chip support
+#
+# CONFIG_SENSORS_DS1337 is not set
+# CONFIG_SENSORS_DS1374 is not set
+# CONFIG_DS1682 is not set
+# CONFIG_SENSORS_EEPROM is not set
+# CONFIG_SENSORS_PCF8574 is not set
+# CONFIG_SENSORS_PCA9539 is not set
+CONFIG_SENSORS_PCA9633=y
+# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_MAX6875 is not set
+CONFIG_SENSORS_AKM8976=y
+# CONFIG_SENSORS_TSL2550 is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
+# CONFIG_I2C_DEBUG_CHIP is not set
+
+#
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+# CONFIG_W1 is not set
+# CONFIG_HWMON is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_EEPROM_93CX6 is not set
+CONFIG_LOW_MEMORY_KILLER=y
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+CONFIG_DAB=y
+
+#
+# Graphics support
+#
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+# CONFIG_VGASTATE is not set
+CONFIG_VIDEO_OUTPUT_CONTROL=y
+CONFIG_FB=y
+# CONFIG_FIRMWARE_EDID is not set
+# CONFIG_FB_DDC is not set
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_SYS_FOPS is not set
+CONFIG_FB_DEFERRED_IO=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_FB_TILEBLITTING=y
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_S1D13XXX is not set
+CONFIG_FB_MSM=y
+# CONFIG_FB_GOLDFISH is not set
+# CONFIG_FB_VIRTUAL is not set
+
+#
+# Console display driver support
+#
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+# CONFIG_FONTS is not set
+CONFIG_FONT_8x8=y
+CONFIG_FONT_8x16=y
+# CONFIG_LOGO is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+CONFIG_HID_SUPPORT=y
+CONFIG_HID=y
+# CONFIG_HID_DEBUG is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_ARCH_HAS_HCD=y
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+# CONFIG_USB is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+
+#
+# USB Function Support
+#
+CONFIG_USB_FUNCTION=y
+CONFIG_USB_FUNCTION_MSM_HSUSB=y
+# CONFIG_USB_FUNCTION_NULL is not set
+# CONFIG_USB_FUNCTION_ZERO is not set
+# CONFIG_USB_FUNCTION_LOOPBACK is not set
+CONFIG_USB_FUNCTION_ADB=y
+# CONFIG_MMC is not set
+CONFIG_RTC_LIB=y
+# CONFIG_RTC_CLASS is not set
+
+#
+# DMA Engine support
+#
+# CONFIG_DMA_ENGINE is not set
+
+#
+# DMA Clients
+#
+
+#
+# DMA Devices
+#
+
+#
+# Android
+#
+# CONFIG_ANDROID_GADGET is not set
+# CONFIG_ANDROID_RAM_CONSOLE is not set
+CONFIG_ANDROID_LOGGER=y
+CONFIG_ANDROID_VIBRATOR=y
+
+#
+# File systems
+#
+# CONFIG_EXT2_FS is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4DEV_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_QUOTA is not set
+CONFIG_DNOTIFY=y
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+# CONFIG_HUGETLB_PAGE is not set
+CONFIG_RAMFS=y
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+CONFIG_YAFFS_FS=y
+CONFIG_YAFFS_YAFFS1=y
+# CONFIG_YAFFS_9BYTE_TAGS is not set
+# CONFIG_YAFFS_DOES_ECC is not set
+CONFIG_YAFFS_YAFFS2=y
+CONFIG_YAFFS_AUTO_YAFFS2=y
+# CONFIG_YAFFS_DISABLE_LAZY_LOAD is not set
+CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS=10
+# CONFIG_YAFFS_DISABLE_WIDE_TNODES is not set
+# CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED is not set
+CONFIG_YAFFS_SHORT_NAMES_IN_RAM=y
+# CONFIG_JFFS2_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+
+#
+# Network File Systems
+#
+# CONFIG_NFS_FS is not set
+# CONFIG_NFSD is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+
+#
+# Native Language Support
+#
+# CONFIG_NLS is not set
+
+#
+# Distributed Lock Manager
+#
+# CONFIG_DLM is not set
+
+#
+# Profiling support
+#
+# CONFIG_PROFILING is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
+CONFIG_SCHEDSTATS=y
+# CONFIG_TIMER_STATS is not set
+# CONFIG_DEBUG_SLAB is not set
+CONFIG_DEBUG_PREEMPT=y
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+CONFIG_DEBUG_MUTEXES=y
+# CONFIG_DEBUG_LOCK_ALLOC is not set
+# CONFIG_PROVE_LOCKING is not set
+# CONFIG_LOCK_STAT is not set
+CONFIG_DEBUG_SPINLOCK_SLEEP=y
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_INFO=y
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_LIST is not set
+CONFIG_FRAME_POINTER=y
+# CONFIG_FORCED_INLINING is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_DEBUG_USER is not set
+# CONFIG_DEBUG_ERRORS is not set
+CONFIG_DEBUG_LL=y
+# CONFIG_DEBUG_ICEDCC is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+CONFIG_CRC_CCITT=y
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig
new file mode 100644
index 000000000000..3553babbbf05
--- /dev/null
+++ b/arch/arm/mach-msm/Kconfig
@@ -0,0 +1,18 @@
+if ARCH_MSM7X00A
+
+comment "MSM7X00A Board Type"
+	depends on ARCH_MSM7X00A
+
+config MACH_HALIBUT
+	depends on ARCH_MSM7X00A
+	default y
+	bool "Halibut Board (QCT SURF7200A)"
+	help
+	  Support for the Qualcomm SURF7200A eval board.
+
+config MSM7X00A_IDLE
+	depends on ARCH_MSM7X00A
+	default y
+	bool "Idle Support for MSM7X00A"
+
+endif
diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
index a42d1a019cd2..fcca853d6485 100644
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile
@@ -1,2 +1,7 @@
 obj-y += io.o idle.o irq.o timer.o
 
+# Common code for board init
+obj-y += common.o
+
+obj-$(CONFIG_MACH_HALIBUT) += board-halibut.o
+
diff --git a/arch/arm/mach-msm/board-halibut.c b/arch/arm/mach-msm/board-halibut.c
new file mode 100644
index 000000000000..86dfb2b5261c
--- /dev/null
+++ b/arch/arm/mach-msm/board-halibut.c
@@ -0,0 +1,114 @@
+/* linux/arch/arm/mach-msm/board-halibut.c
+ *
+ * Copyright (C) 2007 Google, Inc.
+ * Author: Brian Swetland <swetland@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/flash.h>
+
+#include <asm/arch/board.h>
+#include <asm/arch/msm_iomap.h>
+
+#include <asm/io.h>
+#include <asm/delay.h>
+
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+
+static struct resource smc91x_resources[] = {
+	[0] = {
+		.start	= 0x9C004300,
+		.end	= 0x9C004400,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= MSM_GPIO_TO_INT(49),
+		.end	= MSM_GPIO_TO_INT(49),
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device smc91x_device = {
+	.name		= "smc91x",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(smc91x_resources),
+	.resource	= smc91x_resources,
+};
+
+static void mddi0_panel_power(int on)
+{
+}
+
+static struct msm_mddi_platform_data msm_mddi0_pdata = {
+	.panel_power	= mddi0_panel_power,
+	.has_vsync_irq	= 0,
+};
+
+static struct platform_device msm_mddi0_device = {
+	.name	= "msm_mddi",
+	.id	= 0,
+	.dev	= {
+		.platform_data = &msm_mddi0_pdata
+	},
+};
+
+static struct platform_device msm_serial0_device = {
+	.name	= "msm_serial",
+	.id	= 0,
+};
+
+static struct platform_device *devices[] __initdata = {
+	&msm_serial0_device,
+	&msm_mddi0_device,
+	&smc91x_device,
+};
+
+extern struct sys_timer msm_timer;
+
+static void __init halibut_init_irq(void)
+{
+	msm_init_irq();
+}
+
+static void __init halibut_init(void)
+{
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+	msm_add_devices();
+}
+
+static void __init halibut_map_io(void)
+{
+	msm_map_common_io();
+}
+
+MACHINE_START(HALIBUT, "Halibut Board (QCT SURF7200A)")
+
+/* UART for LL DEBUG */
+	.phys_io	= MSM_UART1_PHYS,
+	.io_pg_offst	= ((MSM_UART1_BASE) >> 18) & 0xfffc,
+
+	.boot_params	= 0x10000100,
+	.map_io		= halibut_map_io,
+	.init_irq	= halibut_init_irq,
+	.init_machine	= halibut_init,
+	.timer		= &msm_timer,
+MACHINE_END
diff --git a/arch/arm/mach-msm/common.c b/arch/arm/mach-msm/common.c
new file mode 100644
index 000000000000..3f5d3362f887
--- /dev/null
+++ b/arch/arm/mach-msm/common.c
@@ -0,0 +1,116 @@
+/* linux/arch/arm/mach-msm/common.c
+ *
+ * Common setup code for MSM7K Boards
+ *
+ * Copyright (C) 2007 Google, Inc.
+ * Author: Brian Swetland <swetland@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach/flash.h>
+#include <asm/io.h>
+
+#include <asm/setup.h>
+
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/arch/msm_iomap.h>
+
+#include <asm/arch/board.h>
+
+struct flash_platform_data msm_nand_data = {
+	.parts		= 0,
+	.nr_parts	= 0,
+};
+
+static struct resource msm_nand_resources[] = {
+	[0] = {
+		.start	= 7,
+		.end	= 7,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static struct platform_device msm_nand_device = {
+	.name		= "msm_nand",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(msm_nand_resources),
+	.resource	= msm_nand_resources,
+	.dev		= {
+		.platform_data	= &msm_nand_data,
+	},
+};
+
+static struct platform_device msm_smd_device = {
+	.name	= "msm_smd",
+	.id	= -1,
+};
+
+static struct resource msm_i2c_resources[] = {
+	{
+		.start	= MSM_I2C_BASE,
+		.end	= MSM_I2C_BASE + MSM_I2C_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= INT_PWB_I2C,
+		.end	= INT_PWB_I2C,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device msm_i2c_device = {
+	.name		= "msm_i2c",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(msm_i2c_resources),
+	.resource	= msm_i2c_resources,
+};
+
+static struct resource usb_resources[] = {
+	{
+		.start	= MSM_HSUSB_PHYS,
+		.end	= MSM_HSUSB_PHYS + MSM_HSUSB_SIZE,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= INT_USB_HS,
+		.end	= INT_USB_HS,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device msm_hsusb_device = {
+	.name		= "msm_hsusb",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(usb_resources),
+	.resource	= usb_resources,
+	.dev		= {
+		.coherent_dma_mask	= 0xffffffff,
+	},
+};
+
+static struct platform_device *devices[] __initdata = {
+	&msm_nand_device,
+	&msm_smd_device,
+	&msm_i2c_device,
+	&msm_hsusb_device,
+};
+
+void __init msm_add_devices(void)
+{
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+}
-- 
cgit v1.2.3-59-g8ed1b


From bfe645adf1a79b873b528556523abb46f281a5dc Mon Sep 17 00:00:00 2001
From: Arve Hjønnevåg <arve@android.com>
Date: Mon, 26 Nov 2007 04:12:29 -0800
Subject: [ARM] msm: dma support for MSM7X00A

Signed-off-by: Brian Swetland <swetland@google.com>
---
 arch/arm/mach-msm/Makefile     |   2 +-
 arch/arm/mach-msm/dma.c        | 214 +++++++++++++++++++++++++++++++++++++++++
 include/asm-arm/arch-msm/dma.h | 150 +++++++++++++++++++++++++++++
 3 files changed, 365 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-msm/dma.c

(limited to 'arch')

diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
index fcca853d6485..d12f23655850 100644
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile
@@ -1,4 +1,4 @@
-obj-y += io.o idle.o irq.o timer.o
+obj-y += io.o idle.o irq.o timer.o dma.o
 
 # Common code for board init
 obj-y += common.o
diff --git a/arch/arm/mach-msm/dma.c b/arch/arm/mach-msm/dma.c
new file mode 100644
index 000000000000..8b0f339b3274
--- /dev/null
+++ b/arch/arm/mach-msm/dma.c
@@ -0,0 +1,214 @@
+/* linux/arch/arm/mach-msm/dma.c
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <asm/io.h>
+#include <linux/interrupt.h>
+#include <asm/arch/dma.h>
+
+#define MSM_DMOV_CHANNEL_COUNT 16
+
+enum {
+	MSM_DMOV_PRINT_ERRORS = 1,
+	MSM_DMOV_PRINT_IO = 2,
+	MSM_DMOV_PRINT_FLOW = 4
+};
+
+static DEFINE_SPINLOCK(msm_dmov_lock);
+static struct msm_dmov_cmd active_command;
+static struct list_head ready_commands[MSM_DMOV_CHANNEL_COUNT];
+static struct list_head active_commands[MSM_DMOV_CHANNEL_COUNT];
+unsigned int msm_dmov_print_mask = MSM_DMOV_PRINT_ERRORS;
+
+#define MSM_DMOV_DPRINTF(mask, format, args...) \
+	do { \
+		if ((mask) & msm_dmov_print_mask) \
+			printk(KERN_ERR format, args); \
+	} while (0)
+#define PRINT_ERROR(format, args...) \
+	MSM_DMOV_DPRINTF(MSM_DMOV_PRINT_ERRORS, format, args);
+#define PRINT_IO(format, args...) \
+	MSM_DMOV_DPRINTF(MSM_DMOV_PRINT_IO, format, args);
+#define PRINT_FLOW(format, args...) \
+	MSM_DMOV_DPRINTF(MSM_DMOV_PRINT_FLOW, format, args);
+
+void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd)
+{
+	unsigned long irq_flags;
+	unsigned int status;
+
+	spin_lock_irqsave(&msm_dmov_lock, irq_flags);
+	status = readl(DMOV_STATUS(id));
+	if (list_empty(&ready_commands[id]) &&
+		(status & DMOV_STATUS_CMD_PTR_RDY)) {
+#if 0
+		if (list_empty(&active_commands[id])) {
+			PRINT_FLOW("msm_dmov_enqueue_cmd(%d), enable interrupt\n", id);
+			writel(DMOV_CONFIG_IRQ_EN, DMOV_CONFIG(id));
+		}
+#endif
+		PRINT_IO("msm_dmov_enqueue_cmd(%d), start command, status %x\n", id, status);
+		list_add_tail(&cmd->list, &active_commands[id]);
+		writel(cmd->cmdptr, DMOV_CMD_PTR(id));
+	} else {
+		if (list_empty(&active_commands[id]))
+			PRINT_ERROR("msm_dmov_enqueue_cmd(%d), error datamover stalled, status %x\n", id, status);
+
+		PRINT_IO("msm_dmov_enqueue_cmd(%d), enqueue command, status %x\n", id, status);
+		list_add_tail(&cmd->list, &ready_commands[id]);
+	}
+	spin_unlock_irqrestore(&msm_dmov_lock, irq_flags);
+}
+
+struct msm_dmov_exec_cmdptr_cmd {
+	struct msm_dmov_cmd dmov_cmd;
+	struct completion complete;
+	unsigned id;
+	unsigned int result;
+	unsigned int flush[6];
+};
+
+static void dmov_exec_cmdptr_complete_func(struct msm_dmov_cmd *_cmd, unsigned int result)
+{
+	struct msm_dmov_exec_cmdptr_cmd *cmd = container_of(_cmd, struct msm_dmov_exec_cmdptr_cmd, dmov_cmd);
+	cmd->result = result;
+	if (result != 0x80000002) {
+		cmd->flush[0] = readl(DMOV_FLUSH0(cmd->id));
+		cmd->flush[1] = readl(DMOV_FLUSH1(cmd->id));
+		cmd->flush[2] = readl(DMOV_FLUSH2(cmd->id));
+		cmd->flush[3] = readl(DMOV_FLUSH3(cmd->id));
+		cmd->flush[4] = readl(DMOV_FLUSH4(cmd->id));
+		cmd->flush[5] = readl(DMOV_FLUSH5(cmd->id));
+	}
+	complete(&cmd->complete);
+}
+
+int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr)
+{
+	struct msm_dmov_exec_cmdptr_cmd cmd;
+
+	PRINT_FLOW("dmov_exec_cmdptr(%d, %x)\n", id, cmdptr);
+
+	cmd.dmov_cmd.cmdptr = cmdptr;
+	cmd.dmov_cmd.complete_func = dmov_exec_cmdptr_complete_func;
+	cmd.id = id;
+	init_completion(&cmd.complete);
+
+	msm_dmov_enqueue_cmd(id, &cmd.dmov_cmd);
+	wait_for_completion(&cmd.complete);
+
+	if (cmd.result != 0x80000002) {
+		PRINT_ERROR("dmov_exec_cmdptr(%d): ERROR, result: %x\n", id, cmd.result);
+		PRINT_ERROR("dmov_exec_cmdptr(%d):  flush: %x %x %x %x\n",
+			id, cmd.flush[0], cmd.flush[1], cmd.flush[2], cmd.flush[3]);
+		return -EIO;
+	}
+	PRINT_FLOW("dmov_exec_cmdptr(%d, %x) done\n", id, cmdptr);
+	return 0;
+}
+
+
+static irqreturn_t msm_datamover_irq_handler(int irq, void *dev_id)
+{
+	unsigned int int_status, mask, id;
+	unsigned long irq_flags;
+	unsigned int ch_status;
+	unsigned int ch_result;
+	struct msm_dmov_cmd *cmd;
+
+	spin_lock_irqsave(&msm_dmov_lock, irq_flags);
+
+	int_status = readl(DMOV_ISR); /* read and clear interrupt */
+	PRINT_FLOW("msm_datamover_irq_handler: DMOV_ISR %x\n", int_status);
+
+	while (int_status) {
+		mask = int_status & -int_status;
+		id = fls(mask) - 1;
+		PRINT_FLOW("msm_datamover_irq_handler %08x %08x id %d\n", int_status, mask, id);
+		int_status &= ~mask;
+		ch_status = readl(DMOV_STATUS(id));
+		if (!(ch_status & DMOV_STATUS_RSLT_VALID)) {
+			PRINT_FLOW("msm_datamover_irq_handler id %d, result not valid %x\n", id, ch_status);
+			continue;
+		}
+		do {
+			ch_result = readl(DMOV_RSLT(id));
+			if (list_empty(&active_commands[id])) {
+				PRINT_ERROR("msm_datamover_irq_handler id %d, got result "
+					"with no active command, status %x, result %x\n",
+					id, ch_status, ch_result);
+				cmd = NULL;
+			} else
+				cmd = list_entry(active_commands[id].next, typeof(*cmd), list);
+			PRINT_FLOW("msm_datamover_irq_handler id %d, status %x, result %x\n", id, ch_status, ch_result);
+			if (ch_result & DMOV_RSLT_DONE) {
+				PRINT_FLOW("msm_datamover_irq_handler id %d, status %x\n",
+					id, ch_status);
+				PRINT_IO("msm_datamover_irq_handler id %d, got result "
+					"for %p, result %x\n", id, cmd, ch_result);
+				if (cmd) {
+					list_del(&cmd->list);
+					cmd->complete_func(cmd, ch_result);
+				}
+			}
+			if (ch_result & DMOV_RSLT_FLUSH) {
+				unsigned int flush0 = readl(DMOV_FLUSH0(id));
+				PRINT_FLOW("msm_datamover_irq_handler id %d, status %x\n", id, ch_status);
+				PRINT_FLOW("msm_datamover_irq_handler id %d, flush, result %x, flush0 %x\n", id, ch_result, flush0);
+				if (cmd) {
+					list_del(&cmd->list);
+					cmd->complete_func(cmd, ch_result);
+				}
+			}
+			if (ch_result & DMOV_RSLT_ERROR) {
+				unsigned int flush0 = readl(DMOV_FLUSH0(id));
+				PRINT_ERROR("msm_datamover_irq_handler id %d, status %x\n", id, ch_status);
+				PRINT_ERROR("msm_datamover_irq_handler id %d, error, result %x, flush0 %x\n", id, ch_result, flush0);
+				if (cmd) {
+					list_del(&cmd->list);
+					cmd->complete_func(cmd, ch_result);
+				}
+				/* this does not seem to work, once we get an error */
+				/* the datamover will no longer accept commands */
+				writel(0, DMOV_FLUSH0(id));
+			}
+			ch_status = readl(DMOV_STATUS(id));
+			PRINT_FLOW("msm_datamover_irq_handler id %d, status %x\n", id, ch_status);
+			if ((ch_status & DMOV_STATUS_CMD_PTR_RDY) && !list_empty(&ready_commands[id])) {
+				cmd = list_entry(ready_commands[id].next, typeof(*cmd), list);
+				list_del(&cmd->list);
+				list_add_tail(&cmd->list, &active_commands[id]);
+				PRINT_FLOW("msm_datamover_irq_handler id %d, start command\n", id);
+				writel(cmd->cmdptr, DMOV_CMD_PTR(id));
+			}
+		} while (ch_status & DMOV_STATUS_RSLT_VALID);
+		PRINT_FLOW("msm_datamover_irq_handler id %d, status %x\n", id, ch_status);
+	}
+	spin_unlock_irqrestore(&msm_dmov_lock, irq_flags);
+	return IRQ_HANDLED;
+}
+
+static int __init msm_init_datamover(void)
+{
+	int i;
+	for (i = 0; i < MSM_DMOV_CHANNEL_COUNT; i++) {
+		INIT_LIST_HEAD(&ready_commands[i]);
+		INIT_LIST_HEAD(&active_commands[i]);
+		writel(DMOV_CONFIG_IRQ_EN | DMOV_CONFIG_FORCE_TOP_PTR_RSLT | DMOV_CONFIG_FORCE_FLUSH_RSLT, DMOV_CONFIG(i));
+	}
+	return request_irq(INT_ADM_AARM, msm_datamover_irq_handler, 0, "msmdatamover", NULL);
+}
+
+arch_initcall(msm_init_datamover);
+
diff --git a/include/asm-arm/arch-msm/dma.h b/include/asm-arm/arch-msm/dma.h
index 8b137891791f..e4b565b27b35 100644
--- a/include/asm-arm/arch-msm/dma.h
+++ b/include/asm-arm/arch-msm/dma.h
@@ -1 +1,151 @@
+/* linux/include/asm-arm/arch-msm/dma.h
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
 
+#ifndef __ASM_ARCH_MSM_DMA_H
+
+#include <linux/list.h>
+#include <asm/arch/msm_iomap.h>
+
+struct msm_dmov_cmd {
+	struct list_head list;
+	unsigned int cmdptr;
+	void (*complete_func)(struct msm_dmov_cmd *cmd, unsigned int result);
+/*	void (*user_result_func)(struct msm_dmov_cmd *cmd); */
+};
+
+void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd);
+void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd);
+int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr);
+/* int msm_dmov_exec_cmd_etc(unsigned id, unsigned int cmdptr, int timeout, int interruptible); */
+
+
+
+#define DMOV_SD0(off, ch) (MSM_DMOV_BASE + 0x0000 + (off) + ((ch) << 2))
+#define DMOV_SD1(off, ch) (MSM_DMOV_BASE + 0x0400 + (off) + ((ch) << 2))
+#define DMOV_SD2(off, ch) (MSM_DMOV_BASE + 0x0800 + (off) + ((ch) << 2))
+#define DMOV_SD3(off, ch) (MSM_DMOV_BASE + 0x0C00 + (off) + ((ch) << 2))
+
+/* only security domain 3 is available to the ARM11
+ * SD0 -> mARM trusted, SD1 -> mARM nontrusted, SD2 -> aDSP, SD3 -> aARM
+ */
+
+#define DMOV_CMD_PTR(ch)      DMOV_SD3(0x000, ch)
+#define DMOV_CMD_LIST         (0 << 29) /* does not work */
+#define DMOV_CMD_PTR_LIST     (1 << 29) /* works */
+#define DMOV_CMD_INPUT_CFG    (2 << 29) /* untested */
+#define DMOV_CMD_OUTPUT_CFG   (3 << 29) /* untested */
+#define DMOV_CMD_ADDR(addr)   ((addr) >> 3)
+
+#define DMOV_RSLT(ch)         DMOV_SD3(0x040, ch)
+#define DMOV_RSLT_VALID       (1 << 31) /* 0 == host has empties result fifo */
+#define DMOV_RSLT_ERROR       (1 << 3)
+#define DMOV_RSLT_FLUSH       (1 << 2)
+#define DMOV_RSLT_DONE        (1 << 1)  /* top pointer done */
+#define DMOV_RSLT_USER        (1 << 0)  /* command with FR force result */
+
+#define DMOV_FLUSH0(ch)       DMOV_SD3(0x080, ch)
+#define DMOV_FLUSH1(ch)       DMOV_SD3(0x0C0, ch)
+#define DMOV_FLUSH2(ch)       DMOV_SD3(0x100, ch)
+#define DMOV_FLUSH3(ch)       DMOV_SD3(0x140, ch)
+#define DMOV_FLUSH4(ch)       DMOV_SD3(0x180, ch)
+#define DMOV_FLUSH5(ch)       DMOV_SD3(0x1C0, ch)
+
+#define DMOV_STATUS(ch)       DMOV_SD3(0x200, ch)
+#define DMOV_STATUS_RSLT_COUNT(n)    (((n) >> 29))
+#define DMOV_STATUS_CMD_COUNT(n)     (((n) >> 27) & 3)
+#define DMOV_STATUS_RSLT_VALID       (1 << 1)
+#define DMOV_STATUS_CMD_PTR_RDY      (1 << 0)
+
+#define DMOV_ISR              DMOV_SD3(0x380, 0)
+
+#define DMOV_CONFIG(ch)       DMOV_SD3(0x300, ch)
+#define DMOV_CONFIG_FORCE_TOP_PTR_RSLT (1 << 2)
+#define DMOV_CONFIG_FORCE_FLUSH_RSLT   (1 << 1)
+#define DMOV_CONFIG_IRQ_EN             (1 << 0)
+
+/* channel assignments */
+
+#define DMOV_NAND_CHAN        7
+#define DMOV_NAND_CRCI_CMD    5
+#define DMOV_NAND_CRCI_DATA   4
+
+#define DMOV_SDC1_CHAN        8
+#define DMOV_SDC1_CRCI        6
+
+#define DMOV_SDC2_CHAN        8
+#define DMOV_SDC2_CRCI        7
+
+#define DMOV_TSIF_CHAN        10
+#define DMOV_TSIF_CRCI        10
+
+#define DMOV_USB_CHAN         11
+
+/* no client rate control ifc (eg, ram) */
+#define DMOV_NONE_CRCI        0
+
+
+/* If the CMD_PTR register has CMD_PTR_LIST selected, the data mover
+ * is going to walk a list of 32bit pointers as described below.  Each
+ * pointer points to a *array* of dmov_s, etc structs.  The last pointer
+ * in the list is marked with CMD_PTR_LP.  The last struct in each array
+ * is marked with CMD_LC (see below).
+ */
+#define CMD_PTR_ADDR(addr)  ((addr) >> 3)
+#define CMD_PTR_LP          (1 << 31) /* last pointer */
+#define CMD_PTR_PT          (3 << 29) /* ? */
+
+/* Single Item Mode */
+typedef struct {
+	unsigned cmd;
+	unsigned src;
+	unsigned dst;
+	unsigned len;
+} dmov_s;
+
+/* Scatter/Gather Mode */
+typedef struct {
+	unsigned cmd;
+	unsigned src_dscr;
+	unsigned dst_dscr;
+	unsigned _reserved;
+} dmov_sg;
+
+/* bits for the cmd field of the above structures */
+
+#define CMD_LC      (1 << 31)  /* last command */
+#define CMD_FR      (1 << 22)  /* force result -- does not work? */
+#define CMD_OCU     (1 << 21)  /* other channel unblock */
+#define CMD_OCB     (1 << 20)  /* other channel block */
+#define CMD_TCB     (1 << 19)  /* ? */
+#define CMD_DAH     (1 << 18)  /* destination address hold -- does not work?*/
+#define CMD_SAH     (1 << 17)  /* source address hold -- does not work? */
+
+#define CMD_MODE_SINGLE     (0 << 0) /* dmov_s structure used */
+#define CMD_MODE_SG         (1 << 0) /* untested */
+#define CMD_MODE_IND_SG     (2 << 0) /* untested */
+#define CMD_MODE_BOX        (3 << 0) /* untested */
+
+#define CMD_DST_SWAP_BYTES  (1 << 14) /* exchange each byte n with byte n+1 */
+#define CMD_DST_SWAP_SHORTS (1 << 15) /* exchange each short n with short n+1 */
+#define CMD_DST_SWAP_WORDS  (1 << 16) /* exchange each word n with word n+1 */
+
+#define CMD_SRC_SWAP_BYTES  (1 << 11) /* exchange each byte n with byte n+1 */
+#define CMD_SRC_SWAP_SHORTS (1 << 12) /* exchange each short n with short n+1 */
+#define CMD_SRC_SWAP_WORDS  (1 << 13) /* exchange each word n with word n+1 */
+
+#define CMD_DST_CRCI(n)     (((n) & 15) << 7)
+#define CMD_SRC_CRCI(n)     (((n) & 15) << 3)
+
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From d142b6e77d394a4fcc0a42381b03852bd9c4e263 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Mon, 12 Nov 2007 21:55:12 +0000
Subject: [ARM] sa1100: add clock source support

Add generic clock source support for SA11x0 platforms.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig            |  1 +
 arch/arm/mach-sa1100/time.c | 38 ++++++++++++++++++++------------------
 2 files changed, 21 insertions(+), 18 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a04f507e7f2c..742527957048 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -366,6 +366,7 @@ config ARCH_SA1100
 	select ARCH_DISCONTIGMEM_ENABLE
 	select ARCH_MTD_XIP
 	select GENERIC_GPIO
+	select GENERIC_TIME
 	help
 	  Support for StrongARM 11x0 based boards.
 
diff --git a/arch/arm/mach-sa1100/time.c b/arch/arm/mach-sa1100/time.c
index fdf7b016e7ad..72984354a247 100644
--- a/arch/arm/mach-sa1100/time.c
+++ b/arch/arm/mach-sa1100/time.c
@@ -14,6 +14,7 @@
 #include <linux/irq.h>
 #include <linux/timex.h>
 #include <linux/signal.h>
+#include <linux/clocksource.h>
 
 #include <asm/mach/time.h>
 #include <asm/hardware.h>
@@ -35,23 +36,6 @@ static int sa1100_set_rtc(void)
 	return 0;
 }
 
-/* IRQs are disabled before entering here from do_gettimeofday() */
-static unsigned long sa1100_gettimeoffset (void)
-{
-	unsigned long ticks_to_match, elapsed, usec;
-
-	/* Get ticks before next timer match */
-	ticks_to_match = OSMR0 - OSCR;
-
-	/* We need elapsed ticks since last match */
-	elapsed = LATCH - ticks_to_match;
-
-	/* Now convert them to usec */
-	usec = (unsigned long)(elapsed * (tick_nsec / 1000))/LATCH;
-
-	return usec;
-}
-
 #ifdef CONFIG_NO_IDLE_HZ
 static unsigned long initial_match;
 static int match_posponed;
@@ -96,6 +80,20 @@ static struct irqaction sa1100_timer_irq = {
 	.handler	= sa1100_timer_interrupt,
 };
 
+static cycle_t sa1100_read_oscr(void)
+{
+	return OSCR;
+}
+
+static struct clocksource cksrc_sa1100_oscr = {
+	.name		= "oscr",
+	.rating		= 200,
+	.read		= sa1100_read_oscr,
+	.mask		= CLOCKSOURCE_MASK(32),
+	.shift		= 20,
+	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
 static void __init sa1100_timer_init(void)
 {
 	unsigned long flags;
@@ -109,6 +107,11 @@ static void __init sa1100_timer_init(void)
 	OIER = OIER_E0;		/* enable match on timer 0 to cause interrupts */
 	OSMR0 = OSCR + LATCH;	/* set initial match */
 	local_irq_restore(flags);
+
+	cksrc_sa1100_oscr.mult =
+		clocksource_hz2mult(CLOCK_TICK_RATE, cksrc_sa1100_oscr.shift);
+
+	clocksource_register(&cksrc_sa1100_oscr);
 }
 
 #ifdef CONFIG_NO_IDLE_HZ
@@ -182,7 +185,6 @@ struct sys_timer sa1100_timer = {
 	.init		= sa1100_timer_init,
 	.suspend	= sa1100_timer_suspend,
 	.resume		= sa1100_timer_resume,
-	.offset		= sa1100_gettimeoffset,
 #ifdef CONFIG_NO_IDLE_HZ
 	.dyn_tick	= &sa1100_dyn_tick,
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From c98929c07a01c9ec2e1e5253456acc7168da8b66 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Thu, 22 Nov 2007 18:32:01 +0100
Subject: [ARM] 4582/2: Add support for the common VFP subarchitecture

This patch allows the VFP support code to run correctly on CPUs
compatible with the common VFP subarchitecture specification (Appendix
B in the ARM ARM v7-A and v7-R edition). It implements support for VFP
subarchitecture 2 while being backwards compatible with
subarchitecture 1.

On VFP subarchitecture 1, the arithmetic exceptions are asynchronous
(or imprecise as described in the old ARM ARM) unless the FPSCR.IXE
bit is 1. The exceptional instructions can be read from FPINST and
FPINST2 registers. With VFP subarchitecture 2, the arithmetic
exceptions can also be synchronous and marked by the FPEXC.DEX bit
(the FPEXC.EX bit is cleared). CPUs implementing the synchronous
arithmetic exceptions don't have the FPINST and FPINST2 registers and
accessing them would trigger and undefined exception.

Note that FPEXC.EX bit has an additional meaning on subarchitecture 1
- if it isn't set, there is no additional information in FPINST and
FPINST2 that needs to be saved at context switch or when lazy-loading
the VFP state of a different thread.

The patch also removes the clearing of the cumulative exception flags in
FPSCR when additional exceptions were raised. It is up to the user
application to clear these bits.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/vfp/vfphw.S     | 38 +++++++++----------
 arch/arm/vfp/vfpmodule.c | 98 +++++++++++++++++++++++++++---------------------
 include/asm-arm/vfp.h    | 30 +++++++--------
 3 files changed, 89 insertions(+), 77 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/vfp/vfphw.S b/arch/arm/vfp/vfphw.S
index 0ac022f800a1..53d9f8e8fac3 100644
--- a/arch/arm/vfp/vfphw.S
+++ b/arch/arm/vfp/vfphw.S
@@ -100,10 +100,10 @@ vfp_support_entry:
 	cmp	r4, #0
 	beq	no_old_VFP_process
 	VFPFMRX	r5, FPSCR		@ current status
-	VFPFMRX	r6, FPINST		@ FPINST (always there, rev0 onwards)
-	tst	r1, #FPEXC_FPV2		@ is there an FPINST2 to read?
-	VFPFMRX	r8, FPINST2, NE		@ FPINST2 if needed - avoids reading
-					@ nonexistant reg on rev0
+	tst	r1, #FPEXC_EX		@ is there additional state to save?
+	VFPFMRX	r6, FPINST, NE		@ FPINST (only if FPEXC.EX is set)
+	tstne	r1, #FPEXC_FP2V		@ is there an FPINST2 to read?
+	VFPFMRX	r8, FPINST2, NE		@ FPINST2 if needed (and present)
 	VFPFSTMIA r4 			@ save the working registers
 	stmia	r4, {r1, r5, r6, r8}	@ save FPEXC, FPSCR, FPINST, FPINST2
 					@ and point r4 at the word at the
@@ -117,10 +117,10 @@ no_old_VFP_process:
 	VFPFLDMIA r10	 		@ reload the working registers while
 					@ FPEXC is in a safe state
 	ldmia	r10, {r1, r5, r6, r8}	@ load FPEXC, FPSCR, FPINST, FPINST2
-	tst	r1, #FPEXC_FPV2		@ is there an FPINST2 to write?
-	VFPFMXR	FPINST2, r8, NE		@ FPINST2 if needed - avoids writing
-					@ nonexistant reg on rev0
-	VFPFMXR	FPINST, r6
+	tst	r1, #FPEXC_EX		@ is there additional state to restore?
+	VFPFMXR	FPINST, r6, NE		@ restore FPINST (only if FPEXC.EX is set)
+	tstne	r1, #FPEXC_FP2V		@ is there an FPINST2 to write?
+	VFPFMXR	FPINST2, r8, NE		@ FPINST2 if needed (and present)
 	VFPFMXR	FPSCR, r5		@ restore status
 
 check_for_exception:
@@ -136,10 +136,14 @@ check_for_exception:
 
 
 look_for_VFP_exceptions:
-	tst	r1, #FPEXC_EX
+	@ Check for synchronous or asynchronous exception
+	tst	r1, #FPEXC_EX | FPEXC_DEX
 	bne	process_exception
+	@ On some implementations of the VFP subarch 1, setting FPSCR.IXE
+	@ causes all the CDP instructions to be bounced synchronously without
+	@ setting the FPEXC.EX bit
 	VFPFMRX	r5, FPSCR
-	tst	r5, #FPSCR_IXE		@ IXE doesn't set FPEXC_EX !
+	tst	r5, #FPSCR_IXE
 	bne	process_exception
 
 	@ Fall into hand on to next handler - appropriate coproc instr
@@ -150,10 +154,6 @@ look_for_VFP_exceptions:
 
 process_exception:
 	DBGSTR	"bounce"
-	sub	r2, r2, #4
-	str	r2, [sp, #S_PC]		@ retry the instruction on exit from
-					@ the imprecise exception handling in
-					@ the support code
 	mov	r2, sp			@ nothing stacked - regdump is at TOS
 	mov	lr, r9			@ setup for a return to the user code.
 
@@ -161,7 +161,7 @@ process_exception:
 	@   r0 holds the trigger instruction
 	@   r1 holds the FPEXC value
 	@   r2 pointer to register dump
-	b	VFP9_bounce		@ we have handled this - the support
+	b	VFP_bounce		@ we have handled this - the support
 					@ code will raise an exception if
 					@ required. If not, the user code will
 					@ retry the faulted instruction
@@ -175,10 +175,10 @@ vfp_save_state:
 	@ r1 - FPEXC
 	DBGSTR1	"save VFP state %p", r0
 	VFPFMRX	r2, FPSCR		@ current status
-	VFPFMRX	r3, FPINST		@ FPINST (always there, rev0 onwards)
-	tst	r1, #FPEXC_FPV2		@ is there an FPINST2 to read?
-	VFPFMRX	r12, FPINST2, NE	@ FPINST2 if needed - avoids reading
-					@ nonexistant reg on rev0
+	tst	r1, #FPEXC_EX		@ is there additional state to save?
+	VFPFMRX	r3, FPINST, NE		@ FPINST (only if FPEXC.EX is set)
+	tstne	r1, #FPEXC_FP2V		@ is there an FPINST2 to read?
+	VFPFMRX	r12, FPINST2, NE	@ FPINST2 if needed (and present)
 	VFPFSTMIA r0 			@ save the working registers
 	stmia	r0, {r1, r2, r3, r12}	@ save FPEXC, FPSCR, FPINST, FPINST2
 	mov	pc, lr
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index b4e210df92f2..32455c633f1c 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -125,13 +125,13 @@ void vfp_raise_sigfpe(unsigned int sicode, struct pt_regs *regs)
 	send_sig_info(SIGFPE, &info, current);
 }
 
-static void vfp_panic(char *reason)
+static void vfp_panic(char *reason, u32 inst)
 {
 	int i;
 
 	printk(KERN_ERR "VFP: Error: %s\n", reason);
 	printk(KERN_ERR "VFP: EXC 0x%08x SCR 0x%08x INST 0x%08x\n",
-		fmrx(FPEXC), fmrx(FPSCR), fmrx(FPINST));
+		fmrx(FPEXC), fmrx(FPSCR), inst);
 	for (i = 0; i < 32; i += 2)
 		printk(KERN_ERR "VFP: s%2u: 0x%08x s%2u: 0x%08x\n",
 		       i, vfp_get_float(i), i+1, vfp_get_float(i+1));
@@ -147,19 +147,16 @@ static void vfp_raise_exceptions(u32 exceptions, u32 inst, u32 fpscr, struct pt_
 	pr_debug("VFP: raising exceptions %08x\n", exceptions);
 
 	if (exceptions == VFP_EXCEPTION_ERROR) {
-		vfp_panic("unhandled bounce");
+		vfp_panic("unhandled bounce", inst);
 		vfp_raise_sigfpe(0, regs);
 		return;
 	}
 
 	/*
-	 * If any of the status flags are set, update the FPSCR.
+	 * Update the FPSCR with the additional exception flags.
 	 * Comparison instructions always return at least one of
 	 * these flags set.
 	 */
-	if (exceptions & (FPSCR_N|FPSCR_Z|FPSCR_C|FPSCR_V))
-		fpscr &= ~(FPSCR_N|FPSCR_Z|FPSCR_C|FPSCR_V);
-
 	fpscr |= exceptions;
 
 	fmxr(FPSCR, fpscr);
@@ -220,35 +217,64 @@ static u32 vfp_emulate_instruction(u32 inst, u32 fpscr, struct pt_regs *regs)
 /*
  * Package up a bounce condition.
  */
-void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs)
+void VFP_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs)
 {
-	u32 fpscr, orig_fpscr, exceptions, inst;
+	u32 fpscr, orig_fpscr, fpsid, exceptions;
 
 	pr_debug("VFP: bounce: trigger %08x fpexc %08x\n", trigger, fpexc);
 
 	/*
-	 * Enable access to the VFP so we can handle the bounce.
+	 * At this point, FPEXC can have the following configuration:
+	 *
+	 *  EX DEX IXE
+	 *  0   1   x   - synchronous exception
+	 *  1   x   0   - asynchronous exception
+	 *  1   x   1   - sychronous on VFP subarch 1 and asynchronous on later
+	 *  0   0   1   - synchronous on VFP9 (non-standard subarch 1
+	 *                implementation), undefined otherwise
+	 *
+	 * Clear various bits and enable access to the VFP so we can
+	 * handle the bounce.
 	 */
-	fmxr(FPEXC, fpexc & ~(FPEXC_EX|FPEXC_FPV2|FPEXC_INV|FPEXC_UFC|FPEXC_OFC|FPEXC_IOC));
+	fmxr(FPEXC, fpexc & ~(FPEXC_EX|FPEXC_DEX|FPEXC_FP2V|FPEXC_VV|FPEXC_TRAP_MASK));
 
+	fpsid = fmrx(FPSID);
 	orig_fpscr = fpscr = fmrx(FPSCR);
 
 	/*
-	 * If we are running with inexact exceptions enabled, we need to
-	 * emulate the trigger instruction.  Note that as we're emulating
-	 * the trigger instruction, we need to increment PC.
+	 * Check for the special VFP subarch 1 and FPSCR.IXE bit case
 	 */
-	if (fpscr & FPSCR_IXE) {
-		regs->ARM_pc += 4;
+	if ((fpsid & FPSID_ARCH_MASK) == (1 << FPSID_ARCH_BIT)
+	    && (fpscr & FPSCR_IXE)) {
+		/*
+		 * Synchronous exception, emulate the trigger instruction
+		 */
 		goto emulate;
 	}
 
-	barrier();
+	if (fpexc & FPEXC_EX) {
+		/*
+		 * Asynchronous exception. The instruction is read from FPINST
+		 * and the interrupted instruction has to be restarted.
+		 */
+		trigger = fmrx(FPINST);
+		regs->ARM_pc -= 4;
+	} else if (!(fpexc & FPEXC_DEX)) {
+		/*
+		 * Illegal combination of bits. It can be caused by an
+		 * unallocated VFP instruction but with FPSCR.IXE set and not
+		 * on VFP subarch 1.
+		 */
+		 vfp_raise_exceptions(VFP_EXCEPTION_ERROR, trigger, fpscr, regs);
+		 return;
+	}
 
 	/*
-	 * Modify fpscr to indicate the number of iterations remaining
+	 * Modify fpscr to indicate the number of iterations remaining.
+	 * If FPEXC.EX is 0, FPEXC.DEX is 1 and the FPEXC.VV bit indicates
+	 * whether FPEXC.VECITR or FPSCR.LEN is used.
 	 */
-	if (fpexc & FPEXC_EX) {
+	if (fpexc & (FPEXC_EX | FPEXC_VV)) {
 		u32 len;
 
 		len = fpexc + (1 << FPEXC_LENGTH_BIT);
@@ -262,15 +288,15 @@ void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs)
 	 * FPEXC bounce reason, but this appears to be unreliable.
 	 * Emulate the bounced instruction instead.
 	 */
-	inst = fmrx(FPINST);
-	exceptions = vfp_emulate_instruction(inst, fpscr, regs);
+	exceptions = vfp_emulate_instruction(trigger, fpscr, regs);
 	if (exceptions)
-		vfp_raise_exceptions(exceptions, inst, orig_fpscr, regs);
+		vfp_raise_exceptions(exceptions, trigger, orig_fpscr, regs);
 
 	/*
-	 * If there isn't a second FP instruction, exit now.
+	 * If there isn't a second FP instruction, exit now. Note that
+	 * the FPEXC.FP2V bit is valid only if FPEXC.EX is 1.
 	 */
-	if (!(fpexc & FPEXC_FPV2))
+	if (fpexc ^ (FPEXC_EX | FPEXC_FP2V))
 		return;
 
 	/*
@@ -279,10 +305,9 @@ void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs)
 	 */
 	barrier();
 	trigger = fmrx(FPINST2);
-	orig_fpscr = fpscr = fmrx(FPSCR);
 
  emulate:
-	exceptions = vfp_emulate_instruction(trigger, fpscr, regs);
+	exceptions = vfp_emulate_instruction(trigger, orig_fpscr, regs);
 	if (exceptions)
 		vfp_raise_exceptions(exceptions, trigger, orig_fpscr, regs);
 }
@@ -306,16 +331,9 @@ static int __init vfp_init(void)
 {
 	unsigned int vfpsid;
 	unsigned int cpu_arch = cpu_architecture();
-	u32 access = 0;
 
-	if (cpu_arch >= CPU_ARCH_ARMv6) {
-		access = get_copro_access();
-
-		/*
-		 * Enable full access to VFP (cp10 and cp11)
-		 */
-		set_copro_access(access | CPACC_FULL(10) | CPACC_FULL(11));
-	}
+	if (cpu_arch >= CPU_ARCH_ARMv6)
+		vfp_enable(NULL);
 
 	/*
 	 * First check that there is a VFP that we can use.
@@ -329,15 +347,9 @@ static int __init vfp_init(void)
 	vfp_vector = vfp_null_entry;
 
 	printk(KERN_INFO "VFP support v0.3: ");
-	if (VFP_arch) {
+	if (VFP_arch)
 		printk("not present\n");
-
-		/*
-		 * Restore the copro access register.
-		 */
-		if (cpu_arch >= CPU_ARCH_ARMv6)
-			set_copro_access(access);
-	} else if (vfpsid & FPSID_NODOUBLE) {
+	else if (vfpsid & FPSID_NODOUBLE) {
 		printk("no double precision support\n");
 	} else {
 		smp_call_function(vfp_enable, NULL, 1, 1);
diff --git a/include/asm-arm/vfp.h b/include/asm-arm/vfp.h
index bd6be9d7f772..9d474d47b266 100644
--- a/include/asm-arm/vfp.h
+++ b/include/asm-arm/vfp.h
@@ -8,6 +8,8 @@
 #define FPSID			cr0
 #define FPSCR			cr1
 #define FPEXC			cr8
+#define FPINST			cr9
+#define FPINST2			cr10
 
 /* FPSID bits */
 #define FPSID_IMPLEMENTER_BIT	(24)
@@ -28,6 +30,19 @@
 /* FPEXC bits */
 #define FPEXC_EX		(1 << 31)
 #define FPEXC_EN		(1 << 30)
+#define FPEXC_DEX		(1 << 29)
+#define FPEXC_FP2V		(1 << 28)
+#define FPEXC_VV		(1 << 27)
+#define FPEXC_TFV		(1 << 26)
+#define FPEXC_LENGTH_BIT	(8)
+#define FPEXC_LENGTH_MASK	(7 << FPEXC_LENGTH_BIT)
+#define FPEXC_IDF		(1 << 7)
+#define FPEXC_IXF		(1 << 4)
+#define FPEXC_UFF		(1 << 3)
+#define FPEXC_OFF		(1 << 2)
+#define FPEXC_DZF		(1 << 1)
+#define FPEXC_IOF		(1 << 0)
+#define FPEXC_TRAP_MASK		(FPEXC_IDF|FPEXC_IXF|FPEXC_UFF|FPEXC_OFF|FPEXC_DZF|FPEXC_IOF)
 
 /* FPSCR bits */
 #define FPSCR_DEFAULT_NAN	(1<<25)
@@ -55,21 +70,6 @@
 #define FPSCR_IXC		(1<<4)
 #define FPSCR_IDC		(1<<7)
 
-/*
- * VFP9-S specific.
- */
-#define FPINST			cr9
-#define FPINST2			cr10
-
-/* FPEXC bits */
-#define FPEXC_FPV2		(1<<28)
-#define FPEXC_LENGTH_BIT	(8)
-#define FPEXC_LENGTH_MASK	(7 << FPEXC_LENGTH_BIT)
-#define FPEXC_INV		(1 << 7)
-#define FPEXC_UFC		(1 << 3)
-#define FPEXC_OFC		(1 << 2)
-#define FPEXC_IOC		(1 << 0)
-
 /* Bit patterns for decoding the packaged operation descriptors */
 #define VFPOPDESC_LENGTH_BIT	(9)
 #define VFPOPDESC_LENGTH_MASK	(0x07 << VFPOPDESC_LENGTH_BIT)
-- 
cgit v1.2.3-59-g8ed1b


From 25ebee020bd34d1f4c5678538204f0b10bf9f6d5 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Tue, 25 Sep 2007 15:22:24 +0100
Subject: [ARM] 4583/1: ARMv7: Add VFPv3 support

This patch adds the support for VFPv3 (the kernel currently supports
VFPv2). The main difference is 32 double registers (compared to 16).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig            |  7 ++++++-
 arch/arm/vfp/vfp.h          |  4 ++++
 arch/arm/vfp/vfphw.S        | 22 ++++++++++++++++++----
 arch/arm/vfp/vfpinstr.h     |  6 +++---
 include/asm-arm/fpstate.h   |  9 +++++++--
 include/asm-arm/vfp.h       |  6 ++++++
 include/asm-arm/vfpmacros.h | 18 ++++++++++++++++--
 7 files changed, 60 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a04f507e7f2c..f4eeb03bc6a9 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -951,7 +951,7 @@ config FPE_FASTFPE
 
 config VFP
 	bool "VFP-format floating point maths"
-	depends on CPU_V6 || CPU_ARM926T
+	depends on CPU_V6 || CPU_ARM926T || CPU_V7
 	help
 	  Say Y to include VFP support code in the kernel. This is needed
 	  if your hardware includes a VFP unit.
@@ -961,6 +961,11 @@ config VFP
 
 	  Say N if your target does not have VFP hardware.
 
+config VFPv3
+	bool
+	depends on VFP
+	default y if CPU_V7
+
 endmenu
 
 menu "Userspace binary formats"
diff --git a/arch/arm/vfp/vfp.h b/arch/arm/vfp/vfp.h
index 791d0238c68f..c85860bad585 100644
--- a/arch/arm/vfp/vfp.h
+++ b/arch/arm/vfp/vfp.h
@@ -265,7 +265,11 @@ struct vfp_double {
  * which returns (double)0.0.  This is useful for the compare with
  * zero instructions.
  */
+#ifdef CONFIG_VFPv3
+#define VFP_REG_ZERO	32
+#else
 #define VFP_REG_ZERO	16
+#endif
 extern u64 vfp_get_double(unsigned int reg);
 extern void vfp_put_double(u64 val, unsigned int reg);
 
diff --git a/arch/arm/vfp/vfphw.S b/arch/arm/vfp/vfphw.S
index 53d9f8e8fac3..353f9e5c7919 100644
--- a/arch/arm/vfp/vfphw.S
+++ b/arch/arm/vfp/vfphw.S
@@ -99,12 +99,12 @@ vfp_support_entry:
 	DBGSTR1	"save old state %p", r4
 	cmp	r4, #0
 	beq	no_old_VFP_process
+	VFPFSTMIA r4, r5		@ save the working registers
 	VFPFMRX	r5, FPSCR		@ current status
 	tst	r1, #FPEXC_EX		@ is there additional state to save?
 	VFPFMRX	r6, FPINST, NE		@ FPINST (only if FPEXC.EX is set)
 	tstne	r1, #FPEXC_FP2V		@ is there an FPINST2 to read?
 	VFPFMRX	r8, FPINST2, NE		@ FPINST2 if needed (and present)
-	VFPFSTMIA r4 			@ save the working registers
 	stmia	r4, {r1, r5, r6, r8}	@ save FPEXC, FPSCR, FPINST, FPINST2
 					@ and point r4 at the word at the
 					@ start of the register dump
@@ -114,7 +114,7 @@ no_old_VFP_process:
 	DBGSTR1	"load state %p", r10
 	str	r10, [r3, r11, lsl #2]	@ update the last_VFP_context pointer
 					@ Load the saved state back into the VFP
-	VFPFLDMIA r10	 		@ reload the working registers while
+	VFPFLDMIA r10, r5		@ reload the working registers while
 					@ FPEXC is in a safe state
 	ldmia	r10, {r1, r5, r6, r8}	@ load FPEXC, FPSCR, FPINST, FPINST2
 	tst	r1, #FPEXC_EX		@ is there additional state to restore?
@@ -174,12 +174,12 @@ vfp_save_state:
 	@ r0 - save location
 	@ r1 - FPEXC
 	DBGSTR1	"save VFP state %p", r0
+	VFPFSTMIA r0, r2		@ save the working registers
 	VFPFMRX	r2, FPSCR		@ current status
 	tst	r1, #FPEXC_EX		@ is there additional state to save?
 	VFPFMRX	r3, FPINST, NE		@ FPINST (only if FPEXC.EX is set)
 	tstne	r1, #FPEXC_FP2V		@ is there an FPINST2 to read?
 	VFPFMRX	r12, FPINST2, NE	@ FPINST2 if needed (and present)
-	VFPFSTMIA r0 			@ save the working registers
 	stmia	r0, {r1, r2, r3, r12}	@ save FPEXC, FPSCR, FPINST, FPINST2
 	mov	pc, lr
 #endif
@@ -217,8 +217,15 @@ vfp_get_double:
 	fmrrd	r0, r1, d\dr
 	mov	pc, lr
 	.endr
+#ifdef CONFIG_VFPv3
+	@ d16 - d31 registers
+	.irp	dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+	mrrc	p11, 3, r0, r1, c\dr	@ fmrrd	r0, r1, d\dr
+	mov	pc, lr
+	.endr
+#endif
 
-	@ virtual register 16 for compare with zero
+	@ virtual register 16 (or 32 if VFPv3) for compare with zero
 	mov	r0, #0
 	mov	r1, #0
 	mov	pc, lr
@@ -231,3 +238,10 @@ vfp_put_double:
 	fmdrr	d\dr, r0, r1
 	mov	pc, lr
 	.endr
+#ifdef CONFIG_VFPv3
+	@ d16 - d31 registers
+	.irp	dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+	mcrr	p11, 3, r1, r2, c\dr	@ fmdrr	r1, r2, d\dr
+	mov	pc, lr
+	.endr
+#endif
diff --git a/arch/arm/vfp/vfpinstr.h b/arch/arm/vfp/vfpinstr.h
index 7f343a4beca0..15b95b5ab97e 100644
--- a/arch/arm/vfp/vfpinstr.h
+++ b/arch/arm/vfp/vfpinstr.h
@@ -52,11 +52,11 @@
 #define FEXT_TO_IDX(inst)	((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7)
 
 #define vfp_get_sd(inst)	((inst & 0x0000f000) >> 11 | (inst & (1 << 22)) >> 22)
-#define vfp_get_dd(inst)	((inst & 0x0000f000) >> 12)
+#define vfp_get_dd(inst)	((inst & 0x0000f000) >> 12 | (inst & (1 << 22)) >> 18)
 #define vfp_get_sm(inst)	((inst & 0x0000000f) << 1 | (inst & (1 << 5)) >> 5)
-#define vfp_get_dm(inst)	((inst & 0x0000000f))
+#define vfp_get_dm(inst)	((inst & 0x0000000f) | (inst & (1 << 5)) >> 1)
 #define vfp_get_sn(inst)	((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7)
-#define vfp_get_dn(inst)	((inst & 0x000f0000) >> 16)
+#define vfp_get_dn(inst)	((inst & 0x000f0000) >> 16 | (inst & (1 << 7)) >> 3)
 
 #define vfp_single(inst)	(((inst) & 0x0000f00) == 0xa00)
 
diff --git a/include/asm-arm/fpstate.h b/include/asm-arm/fpstate.h
index f31cda5a55ee..392eb5332323 100644
--- a/include/asm-arm/fpstate.h
+++ b/include/asm-arm/fpstate.h
@@ -17,14 +17,18 @@
 /*
  * VFP storage area has:
  *  - FPEXC, FPSCR, FPINST and FPINST2.
- *  - 16 double precision data registers
- *  - an implementation-dependant word of state for FLDMX/FSTMX
+ *  - 16 or 32 double precision data registers
+ *  - an implementation-dependant word of state for FLDMX/FSTMX (pre-ARMv6)
  * 
  *  FPEXC will always be non-zero once the VFP has been used in this process.
  */
 
 struct vfp_hard_struct {
+#ifdef CONFIG_VFPv3
+	__u64 fpregs[32];
+#else
 	__u64 fpregs[16];
+#endif
 #if __LINUX_ARM_ARCH__ < 6
 	__u32 fpmx_state;
 #endif
@@ -35,6 +39,7 @@ struct vfp_hard_struct {
 	 */
 	__u32 fpinst;
 	__u32 fpinst2;
+
 #ifdef CONFIG_SMP
 	__u32 cpu;
 #endif
diff --git a/include/asm-arm/vfp.h b/include/asm-arm/vfp.h
index 9d474d47b266..5f9a2cb3d452 100644
--- a/include/asm-arm/vfp.h
+++ b/include/asm-arm/vfp.h
@@ -7,6 +7,8 @@
 
 #define FPSID			cr0
 #define FPSCR			cr1
+#define MVFR1			cr6
+#define MVFR0			cr7
 #define FPEXC			cr8
 #define FPINST			cr9
 #define FPINST2			cr10
@@ -70,6 +72,10 @@
 #define FPSCR_IXC		(1<<4)
 #define FPSCR_IDC		(1<<7)
 
+/* MVFR0 bits */
+#define MVFR0_A_SIMD_BIT	(0)
+#define MVFR0_A_SIMD_MASK	(0xf << MVFR0_A_SIMD_BIT)
+
 /* Bit patterns for decoding the packaged operation descriptors */
 #define VFPOPDESC_LENGTH_BIT	(9)
 #define VFPOPDESC_LENGTH_MASK	(0x07 << VFPOPDESC_LENGTH_BIT)
diff --git a/include/asm-arm/vfpmacros.h b/include/asm-arm/vfpmacros.h
index 27fe028b4e72..cccb3892e73c 100644
--- a/include/asm-arm/vfpmacros.h
+++ b/include/asm-arm/vfpmacros.h
@@ -15,19 +15,33 @@
 	.endm
 
 	@ read all the working registers back into the VFP
-	.macro	VFPFLDMIA, base
+	.macro	VFPFLDMIA, base, tmp
 #if __LINUX_ARM_ARCH__ < 6
 	LDC	p11, cr0, [\base],#33*4		    @ FLDMIAX \base!, {d0-d15}
 #else
 	LDC	p11, cr0, [\base],#32*4		    @ FLDMIAD \base!, {d0-d15}
+#endif
+#ifdef CONFIG_VFPv3
+	VFPFMRX	\tmp, MVFR0			    @ Media and VFP Feature Register 0
+	and	\tmp, \tmp, #MVFR0_A_SIMD_MASK	    @ A_SIMD field
+	cmp	\tmp, #2			    @ 32 x 64bit registers?
+	ldceql	p11, cr0, [\base],#32*4		    @ FLDMIAD \base!, {d16-d31}
+	addne	\base, \base, #32*4		    @ step over unused register space
 #endif
 	.endm
 
 	@ write all the working registers out of the VFP
-	.macro	VFPFSTMIA, base
+	.macro	VFPFSTMIA, base, tmp
 #if __LINUX_ARM_ARCH__ < 6
 	STC	p11, cr0, [\base],#33*4		    @ FSTMIAX \base!, {d0-d15}
 #else
 	STC	p11, cr0, [\base],#32*4		    @ FSTMIAD \base!, {d0-d15}
+#endif
+#ifdef CONFIG_VFPv3
+	VFPFMRX	\tmp, MVFR0			    @ Media and VFP Feature Register 0
+	and	\tmp, \tmp, #MVFR0_A_SIMD_MASK	    @ A_SIMD field
+	cmp	\tmp, #2			    @ 32 x 64bit registers?
+	stceql	p11, cr0, [\base],#32*4		    @ FSTMIAD \base!, {d16-d31}
+	addne	\base, \base, #32*4		    @ step over unused register space
 #endif
 	.endm
-- 
cgit v1.2.3-59-g8ed1b


From b5872db4a2ebe7dbc7a5e4013ae8ee37f3de3b97 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Thu, 10 Jan 2008 19:16:17 +0100
Subject: [ARM] 4584/2: ARMv7: Add Advanced SIMD (NEON) extension support

This patch enables the use of the Advanced SIMD (NEON) extension on
ARMv7. The NEON technology is a 64/128-bit hybrid SIMD architecture
for accelerating the performance of multimedia and signal processing
applications. The extension shares the registers with the VFP unit and
enabling/disabling and saving/restoring follow the same rules. In
addition, there are instructions that do not have the appropriate CP
number encoded, the checks being made in the call_fpe function.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig             |  7 +++++++
 arch/arm/kernel/entry-armv.S | 38 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f4eeb03bc6a9..709f9d383c87 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -966,6 +966,13 @@ config VFPv3
 	depends on VFP
 	default y if CPU_V7
 
+config NEON
+	bool "Advanced SIMD (NEON) Extension support"
+	depends on VFPv3 && CPU_V7
+	help
+	  Say Y to include support code for NEON, the ARMv7 Advanced SIMD
+	  Extension.
+
 endmenu
 
 menu "Userspace binary formats"
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 29dec080a604..8de21f51e48c 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -480,6 +480,13 @@ __und_usr:
  * co-processor instructions.  However, we have to watch out
  * for the ARM6/ARM7 SWI bug.
  *
+ * NEON is a special case that has to be handled here. Not all
+ * NEON instructions are co-processor instructions, so we have
+ * to make a special case of checking for them. Plus, there's
+ * five groups of them, so we have a table of mask/opcode pairs
+ * to check against, and if any match then we branch off into the
+ * NEON handler code.
+ *
  * Emulators may wish to make use of the following registers:
  *  r0  = instruction opcode.
  *  r2  = PC+4
@@ -488,6 +495,23 @@ __und_usr:
  *  lr  = unrecognised instruction return address
  */
 call_fpe:
+#ifdef CONFIG_NEON
+	adr	r6, .LCneon_opcodes
+2:
+	ldr	r7, [r6], #4			@ mask value
+	cmp	r7, #0				@ end mask?
+	beq	1f
+	and	r8, r0, r7
+	ldr	r7, [r6], #4			@ opcode bits matching in mask
+	cmp	r8, r7				@ NEON instruction?
+	bne	2b
+	get_thread_info r10
+	mov	r7, #1
+	strb	r7, [r10, #TI_USED_CP + 10]	@ mark CP#10 as used
+	strb	r7, [r10, #TI_USED_CP + 11]	@ mark CP#11 as used
+	b	do_vfp				@ let VFP handler handle this
+1:
+#endif
 	tst	r0, #0x08000000			@ only CDP/CPRT/LDC/STC have bit 27
 #if defined(CONFIG_CPU_ARM610) || defined(CONFIG_CPU_ARM710)
 	and	r8, r0, #0x0f000000		@ mask out op-code bits
@@ -537,6 +561,20 @@ call_fpe:
 	mov	pc, lr				@ CP#14 (Debug)
 	mov	pc, lr				@ CP#15 (Control)
 
+#ifdef CONFIG_NEON
+	.align	6
+
+.LCneon_opcodes:
+	.word	0xfe000000			@ mask
+	.word	0xf2000000			@ opcode
+
+	.word	0xff100000			@ mask
+	.word	0xf4000000			@ opcode
+
+	.word	0x00000000			@ mask
+	.word	0x00000000			@ opcode
+#endif
+
 do_fpe:
 	enable_irq
 	ldr	r4, .LCfp
-- 
cgit v1.2.3-59-g8ed1b


From 2fd2b1242810fb4d2ba36548fecc1f005c36770c Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Sat, 26 Jan 2008 14:47:48 +0000
Subject: [ARM] Update mach-types

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/tools/mach-types | 258 ++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 251 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/tools/mach-types b/arch/arm/tools/mach-types
index 0a9a5e7f62e5..7ed58c0c24c2 100644
--- a/arch/arm/tools/mach-types
+++ b/arch/arm/tools/mach-types
@@ -12,7 +12,7 @@
 #
 #   http://www.arm.linux.org.uk/developer/machines/?action=new
 #
-# Last update: Fri May 11 19:53:41 2007
+# Last update: Sat Jan 26 14:45:34 2008
 #
 # machine_is_xxx	CONFIG_xxxx		MACH_TYPE_xxx		number
 #
@@ -266,7 +266,7 @@ stork_egg		ARCH_STORK_EGG		STORK_EGG		248
 wismo			SA1100_WISMO		WISMO			249
 ezlinx			ARCH_EZLINX		EZLINX			250
 at91rm9200		ARCH_AT91RM9200		AT91RM9200		251
-orion			ARCH_ORION		ORION			252
+adtech_orion		ARCH_ADTECH_ORION	ADTECH_ORION		252
 neptune			ARCH_NEPTUNE		NEPTUNE			253
 hackkit			SA1100_HACKKIT		HACKKIT			254
 pxa_wins30		ARCH_PXA_WINS30		PXA_WINS30		255
@@ -661,7 +661,6 @@ a9200ec			MACH_A9200EC		A9200EC			645
 pnx0105			MACH_PNX0105		PNX0105			646
 adcpoecpu		MACH_ADCPOECPU		ADCPOECPU		647
 csb637			MACH_CSB637		CSB637			648
-ml69q6203		MACH_ML69Q6203		ML69Q6203		649
 mb9200			MACH_MB9200		MB9200			650
 kulun			MACH_KULUN		KULUN			651
 snapper			MACH_SNAPPER		SNAPPER			652
@@ -953,7 +952,6 @@ fred_jack		MACH_FRED_JACK		FRED_JACK		939
 ttg_color1		MACH_TTG_COLOR1		TTG_COLOR1		940
 nxeb500hmi		MACH_NXEB500HMI		NXEB500HMI		941
 netdcu8			MACH_NETDCU8		NETDCU8			942
-ml675050_cpu_boa	MACH_ML675050_CPU_BOA	ML675050_CPU_BOA	943
 ng_fvx538		MACH_NG_FVX538		NG_FVX538		944
 ng_fvs338		MACH_NG_FVS338		NG_FVS338		945
 pnx4103			MACH_PNX4103		PNX4103			946
@@ -1148,7 +1146,7 @@ aidx270			MACH_AIDX270		AIDX270			1134
 rema			MACH_REMA		REMA			1135
 bps1000			MACH_BPS1000		BPS1000			1136
 hw90350			MACH_HW90350		HW90350			1137
-omap_sdp3430		MACH_OMAP_SDP3430	OMAP_SDP3430		1138
+omap_3430sdp		MACH_OMAP_3430SDP	OMAP_3430SDP		1138
 bluetouch		MACH_BLUETOUCH		BLUETOUCH		1139
 vstms			MACH_VSTMS		VSTMS			1140
 xsbase270		MACH_XSBASE270		XSBASE270		1141
@@ -1214,7 +1212,7 @@ osstbox			MACH_OSSTBOX		OSSTBOX			1203
 kbat9261		MACH_KBAT9261		KBAT9261		1204
 ct1100			MACH_CT1100		CT1100			1205
 akcppxa			MACH_AKCPPXA		AKCPPXA			1206
-zevio_1020		MACH_ZEVIO_1020		ZEVIO_1020		1207
+ochaya1020		MACH_OCHAYA1020		OCHAYA1020		1207
 hitrack			MACH_HITRACK		HITRACK			1208
 syme1			MACH_SYME1		SYME1			1209
 syhl1			MACH_SYHL1		SYHL1			1210
@@ -1299,7 +1297,7 @@ xp179			MACH_XP179		XP179			1290
 h4300			MACH_H4300		H4300			1291
 goramo_mlr		MACH_GORAMO_MLR		GORAMO_MLR		1292
 mxc30020evb		MACH_MXC30020EVB	MXC30020EVB		1293
-adsbitsymx		MACH_ADSBITSIMX		ADSBITSIMX		1294
+adsbitsyg5		MACH_ADSBITSYG5		ADSBITSYG5		1294
 adsportalplus		MACH_ADSPORTALPLUS	ADSPORTALPLUS		1295
 mmsp2plus		MACH_MMSP2PLUS		MMSP2PLUS		1296
 em_x270			MACH_EM_X270		EM_X270			1297
@@ -1367,3 +1365,249 @@ db88f5281		MACH_DB88F5281		DB88F5281		1358
 csb726			MACH_CSB726		CSB726			1359
 tik27			MACH_TIK27		TIK27			1360
 mx_uc7420		MACH_MX_UC7420		MX_UC7420		1361
+rirm3			MACH_RIRM3		RIRM3			1362
+pelco_odyssey		MACH_PELCO_ODYSSEY	PELCO_ODYSSEY		1363
+adx_abox		MACH_ADX_ABOX		ADX_ABOX		1365
+adx_tpid		MACH_ADX_TPID		ADX_TPID		1366
+minicheck		MACH_MINICHECK		MINICHECK		1367
+idam			MACH_IDAM		IDAM			1368
+mario_mx		MACH_MARIO_MX		MARIO_MX		1369
+vi1888			MACH_VI1888		VI1888			1370
+zr4230			MACH_ZR4230		ZR4230			1371
+t1_ix_blue		MACH_T1_IX_BLUE		T1_IX_BLUE		1372
+syhq2			MACH_SYHQ2		SYHQ2			1373
+computime_r3		MACH_COMPUTIME_R3	COMPUTIME_R3		1374
+oratis			MACH_ORATIS		ORATIS			1375
+mikko			MACH_MIKKO		MIKKO			1376
+holon			MACH_HOLON		HOLON			1377
+olip8			MACH_OLIP8		OLIP8			1378
+ghi270hg		MACH_GHI270HG		GHI270HG		1379
+davinci_dm6467_evm	MACH_DAVINCI_DM6467_EVM	DAVINCI_DM6467_EVM	1380
+davinci_dm355_evm	MACH_DAVINCI_DM350_EVM	DAVINCI_DM350_EVM	1381
+blackriver		MACH_BLACKRIVER		BLACKRIVER		1383
+sandgate_wp		MACH_SANDGATEWP		SANDGATEWP		1384
+cdotbwsg		MACH_CDOTBWSG		CDOTBWSG		1385
+quark963		MACH_QUARK963		QUARK963		1386
+csb735			MACH_CSB735		CSB735			1387
+littleton		MACH_LITTLETON		LITTLETON		1388
+mio_p550		MACH_MIO_P550		MIO_P550		1389
+motion2440		MACH_MOTION2440		MOTION2440		1390
+imm500			MACH_IMM500		IMM500			1391
+homematic		MACH_HOMEMATIC		HOMEMATIC		1392
+ermine			MACH_ERMINE		ERMINE			1393
+kb9202b			MACH_KB9202B		KB9202B			1394
+hs1xx			MACH_HS1XX		HS1XX			1395
+studentmate2440		MACH_STUDENTMATE2440	STUDENTMATE2440		1396
+arvoo_l1_z1		MACH_ARVOO_L1_Z1	ARVOO_L1_Z1		1397
+dep2410k		MACH_DEP2410K		DEP2410K		1398
+xxsvideo		MACH_XXSVIDEO		XXSVIDEO		1399
+im4004			MACH_IM4004		IM4004			1400
+ochaya1050		MACH_OCHAYA1050		OCHAYA1050		1401
+lep9261			MACH_LEP9261		LEP9261			1402
+svenmeb			MACH_SVENMEB		SVENMEB			1403
+fortunet2ne		MACH_FORTUNET2NE	FORTUNET2NE		1404
+nxhx			MACH_NXHX		NXHX			1406
+realview_pb11mp		MACH_REALVIEW_PB11MP	REALVIEW_PB11MP		1407
+ids500			MACH_IDS500		IDS500			1408
+ors_n725		MACH_ORS_N725		ORS_N725		1409
+hsdarm			MACH_HSDARM		HSDARM			1410
+sha_pon003		MACH_SHA_PON003		SHA_PON003		1411
+sha_pon004		MACH_SHA_PON004		SHA_PON004		1412
+sha_pon007		MACH_SHA_PON007		SHA_PON007		1413
+sha_pon011		MACH_SHA_PON011		SHA_PON011		1414
+h6042			MACH_H6042		H6042			1415
+h6043			MACH_H6043		H6043			1416
+looxc550		MACH_LOOXC550		LOOXC550		1417
+cnty_titan		MACH_CNTY_TITAN		CNTY_TITAN		1418
+app3xx			MACH_APP3XX		APP3XX			1419
+sideoatsgrama		MACH_SIDEOATSGRAMA	SIDEOATSGRAMA		1420
+xscale_palmt700p	MACH_XSCALE_PALMT700P	XSCALE_PALMT700P	1421
+xscale_palmt700w	MACH_XSCALE_PALMT700W	XSCALE_PALMT700W	1422
+xscale_palmt750		MACH_XSCALE_PALMT750	XSCALE_PALMT750		1423
+xscale_palmt755p	MACH_XSCALE_PALMT755P	XSCALE_PALMT755P	1424
+ezreganut9200		MACH_EZREGANUT9200	EZREGANUT9200		1425
+sarge			MACH_SARGE		SARGE			1426
+a696			MACH_A696		A696			1427
+turtle1916		MACH_TURTLE		TURTLE			1428
+mx27_3ds		MACH_MX27_3DS		MX27_3DS		1430
+bishop			MACH_BISHOP		BISHOP			1431
+pxx			MACH_PXX		PXX			1432
+redwood			MACH_REDWOOD		REDWOOD			1433
+omap_2430dlp		MACH_OMAP_2430DLP	OMAP_2430DLP		1436
+omap_2430osk		MACH_OMAP_2430OSK	OMAP_2430OSK		1437
+sardine			MACH_SARDINE		SARDINE			1438
+halibut			MACH_HALIBUT		HALIBUT			1439
+trout			MACH_TROUT		TROUT			1440
+goldfish		MACH_GOLDFISH		GOLDFISH		1441
+gesbc2440		MACH_GESBC2440		GESBC2440		1442
+nomad			MACH_NOMAD		NOMAD			1443
+rosalind		MACH_ROSALIND		ROSALIND		1444
+cc9p9215		MACH_CC9P9215		CC9P9215		1445
+cc9p9210		MACH_CC9P9210		CC9P9210		1446
+cc9p9215js		MACH_CC9P9215JS		CC9P9215JS		1447
+cc9p9210js		MACH_CC9P9210JS		CC9P9210JS		1448
+nasffe			MACH_NASFFE		NASFFE			1449
+tn2x0bd			MACH_TN2X0BD		TN2X0BD			1450
+gwmpxa			MACH_GWMPXA		GWMPXA			1451
+exyplus			MACH_EXYPLUS		EXYPLUS			1452
+jadoo21			MACH_JADOO21		JADOO21			1453
+looxn560		MACH_LOOXN560		LOOXN560		1454
+bonsai			MACH_BONSAI		BONSAI			1455
+adsmilgato		MACH_ADSMILGATO		ADSMILGATO		1456
+gba			MACH_GBA		GBA			1457
+h6044			MACH_H6044		H6044			1458
+app			MACH_APP		APP			1459
+tct_hammer		MACH_TCT_HAMMER		TCT_HAMMER		1460
+herald			MACH_HERMES		HERMES			1461
+artemis			MACH_ARTEMIS		ARTEMIS			1462
+htctitan		MACH_HTCTITAN		HTCTITAN		1463
+qranium			MACH_QRANIUM		QRANIUM			1464
+adx_wsc2		MACH_ADX_WSC2		ADX_WSC2		1465
+adx_medinet		MACH_ADX_MEDINET	ADX_MEDINET		1466
+bboard			MACH_BBOARD		BBOARD			1467
+cambria			MACH_CAMBRIA		CAMBRIA			1468
+mt7xxx			MACH_MT7XXX		MT7XXX			1469
+matrix512		MACH_MATRIX512		MATRIX512		1470
+matrix522		MACH_MATRIX522		MATRIX522		1471
+ipac5010		MACH_IPAC5010		IPAC5010		1472
+sakura			MACH_SAKURA		SAKURA			1473
+grocx			MACH_GROCX		GROCX			1474
+pm9263			MACH_PM9263		PM9263			1475
+sim_one			MACH_SIM_ONE		SIM_ONE			1476
+acq132			MACH_ACQ132		ACQ132			1477
+datr			MACH_DATR		DATR			1478
+actux1			MACH_ACTUX1		ACTUX1			1479
+actux2			MACH_ACTUX2		ACTUX2			1480
+actux3			MACH_ACTUX3		ACTUX3			1481
+flexit			MACH_FLEXIT		FLEXIT			1482
+bh2x0bd			MACH_BH2X0BD		BH2X0BD			1483
+atb2002			MACH_ATB2002		ATB2002			1484
+xenon			MACH_XENON		XENON			1485
+fm607			MACH_FM607		FM607			1486
+matrix514		MACH_MATRIX514		MATRIX514		1487
+matrix524		MACH_MATRIX524		MATRIX524		1488
+inpod			MACH_INPOD		INPOD			1489
+jive			MACH_JIVE		JIVE			1490
+tll_mx21		MACH_TLL_MX21		TLL_MX21		1491
+sbc2800			MACH_SBC2800		SBC2800			1492
+cc7ucamry		MACH_CC7UCAMRY		CC7UCAMRY		1493
+ubisys_p9_sc15		MACH_UBISYS_P9_SC15	UBISYS_P9_SC15		1494
+ubisys_p9_ssc2d10	MACH_UBISYS_P9_SSC2D10	UBISYS_P9_SSC2D10	1495
+ubisys_p9_rcu3		MACH_UBISYS_P9_RCU3	UBISYS_P9_RCU3		1496
+aml_m8000		MACH_AML_M8000		AML_M8000		1497
+snapper_270		MACH_SNAPPER_270	SNAPPER_270		1498
+omap_bbx		MACH_OMAP_BBX		OMAP_BBX		1499
+ucn2410			MACH_UCN2410		UCN2410			1500
+sam9_l9260		MACH_SAM9_L9260		SAM9_L9260		1501
+eti_c2			MACH_ETI_C2		ETI_C2			1502
+avalanche		MACH_AVALANCHE		AVALANCHE		1503
+realview_pb1176		MACH_REALVIEW_PB1176	REALVIEW_PB1176		1504
+dp1500			MACH_DP1500		DP1500			1505
+apple_iphone		MACH_APPLE_IPHONE	APPLE_IPHONE		1506
+yl9200			MACH_YL9200		YL9200			1507
+rd88f5182		MACH_RD88F5182		RD88F5182		1508
+kurobox_pro		MACH_KUROBOX_PRO	KUROBOX_PRO		1509
+se_poet			MACH_SE_POET		SE_POET			1510
+mx31_3ds		MACH_MX31_3DS		MX31_3DS		1511
+r270			MACH_R270		R270			1512
+armour21		MACH_ARMOUR21		ARMOUR21		1513
+dt2			MACH_DT2		DT2			1514
+vt4			MACH_VT4		VT4			1515
+tyco320			MACH_TYCO320		TYCO320			1516
+adma			MACH_ADMA		ADMA			1517
+wp188			MACH_WP188		WP188			1518
+corsica			MACH_CORSICA		CORSICA			1519
+bigeye			MACH_BIGEYE		BIGEYE			1520
+tll5000			MACH_TLL5000		TLL5000			1522
+hni270			MACH_HNI_X270		HNI_X270		1523
+qong			MACH_QONG		QONG			1524
+tcompact		MACH_TCOMPACT		TCOMPACT		1525
+puma5			MACH_PUMA5		PUMA5			1526
+elara			MACH_ELARA		ELARA			1527
+ellington		MACH_ELLINGTON		ELLINGTON		1528
+xda_atom		MACH_XDA_ATOM		XDA_ATOM		1529
+energizer2		MACH_ENERGIZER2		ENERGIZER2		1530
+odin			MACH_ODIN		ODIN			1531
+actux4			MACH_ACTUX4		ACTUX4			1532
+esl_omap		MACH_ESL_OMAP		ESL_OMAP		1533
+omap2evm		MACH_OMAP2EVM		OMAP2EVM		1534
+omap3evm		MACH_OMAP3EVM		OMAP3EVM		1535
+adx_pcu57		MACH_ADX_PCU57		ADX_PCU57		1536
+monaco			MACH_MONACO		MONACO			1537
+levante			MACH_LEVANTE		LEVANTE			1538
+tmxipx425		MACH_TMXIPX425		TMXIPX425		1539
+leep			MACH_LEEP		LEEP			1540
+raad			MACH_RAAD		RAAD			1541
+dns323			MACH_DNS323		DNS323			1542
+ap1000			MACH_AP1000		AP1000			1543
+a9sam6432		MACH_A9SAM6432		A9SAM6432		1544
+shiny			MACH_SHINY		SHINY			1545
+omap3_beagle		MACH_OMAP3_BEAGLE	OMAP3_BEAGLE		1546
+csr_bdb2		MACH_CSR_BDB2		CSR_BDB2		1547
+nokia_n810		MACH_NOKIA_N810		NOKIA_N810		1548
+c270			MACH_C270		C270			1549
+sentry			MACH_SENTRY		SENTRY			1550
+pcm038			MACH_PCM038		PCM038			1551
+anc300			MACH_ANC300		ANC300			1552
+htckaiser		MACH_HTCKAISER		HTCKAISER		1553
+sbat100			MACH_SBAT100		SBAT100			1554
+modunorm		MACH_MODUNORM		MODUNORM		1555
+pelos_twarm		MACH_PELOS_TWARM	PELOS_TWARM		1556
+flank			MACH_FLANK		FLANK			1557
+sirloin			MACH_SIRLOIN		SIRLOIN			1558
+brisket			MACH_BRISKET		BRISKET			1559
+chuck			MACH_CHUCK		CHUCK			1560
+otter			MACH_OTTER		OTTER			1561
+davinci_ldk		MACH_DAVINCI_LDK	DAVINCI_LDK		1562
+phreedom		MACH_PHREEDOM		PHREEDOM		1563
+sg310			MACH_SG310		SG310			1564
+ts_x09			MACH_TS209		TS209			1565
+at91cap9adk		MACH_AT91CAP9ADK	AT91CAP9ADK		1566
+tion9315		MACH_TION9315		TION9315		1567
+mast			MACH_MAST		MAST			1568
+pfw			MACH_PFW		PFW			1569
+yl_p2440		MACH_YL_P2440		YL_P2440		1570
+zsbc32			MACH_ZSBC32		ZSBC32			1571
+omap_pace2		MACH_OMAP_PACE2		OMAP_PACE2		1572
+imx_pace2		MACH_IMX_PACE2		IMX_PACE2		1573
+mx31moboard		MACH_MX31MOBOARD	MX31MOBOARD		1574
+mx37_3ds		MACH_MX37_3DS		MX37_3DS		1575
+rcc			MACH_RCC		RCC			1576
+dmp			MACH_ARM9		ARM9			1577
+vision_ep9307		MACH_VISION_EP9307	VISION_EP9307		1578
+scly1000		MACH_SCLY1000		SCLY1000		1579
+fontel_ep		MACH_FONTEL_EP		FONTEL_EP		1580
+voiceblue3g		MACH_VOICEBLUE3G	VOICEBLUE3G		1581
+tt9200			MACH_TT9200		TT9200			1582
+digi2410		MACH_DIGI2410		DIGI2410		1583
+terastation_pro2	MACH_TERASTATION_PRO2	TERASTATION_PRO2	1584
+linkstation_pro		MACH_LINKSTATION_PRO	LINKSTATION_PRO		1585
+motorola_a780		MACH_MOTOROLA_A780	MOTOROLA_A780		1587
+motorola_e6		MACH_MOTOROLA_E6	MOTOROLA_E6		1588
+motorola_e2		MACH_MOTOROLA_E2	MOTOROLA_E2		1589
+motorola_e680		MACH_MOTOROLA_E680	MOTOROLA_E680		1590
+ur2410			MACH_UR2410		UR2410			1591
+tas9261			MACH_TAS9261		TAS9261			1592
+davinci_hermes_hd	MACH_HERMES_HD		HERMES_HD		1593
+davinci_perseo_hd	MACH_PERSEO_HD		PERSEO_HD		1594
+stargazer2		MACH_STARGAZER2		STARGAZER2		1595
+e350			MACH_E350		E350			1596
+wpcm450			MACH_WPCM450		WPCM450			1597
+cartesio		MACH_CARTESIO		CARTESIO		1598
+toybox			MACH_TOYBOX		TOYBOX			1599
+tx27			MACH_TX27		TX27			1600
+ts409			MACH_TS409		TS409			1601
+p300			MACH_P300		P300			1602
+xdacomet		MACH_XDACOMET		XDACOMET		1603
+dexflex2		MACH_DEXFLEX2		DEXFLEX2		1604
+ow			MACH_OW			OW			1605
+armebs3			MACH_ARMEBS3		ARMEBS3			1606
+u3			MACH_U3			U3			1607
+smdk2450		MACH_SMDK2450		SMDK2450		1608
+rsi_ews			MACH_RSI_EWS		RSI_EWS			1609
+tnb			MACH_TNB		TNB			1610
+toepath			MACH_TOEPATH		TOEPATH			1611
+kb9263			MACH_KB9263		KB9263			1612
+mt7108			MACH_MT7108		MT7108			1613
+smtr2440		MACH_SMTR2440		SMTR2440		1614
+manao			MACH_MANAO		MANAO			1615
-- 
cgit v1.2.3-59-g8ed1b


From df1a29032060680d258689448dca37bb003c4c2c Mon Sep 17 00:00:00 2001
From: Alejandro Martinez Ruiz <alex@flawedcode.org>
Date: Wed, 17 Oct 2007 12:14:25 +0200
Subject: [ARM] ARRAY_SIZE() cleanup

Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/dma-isa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/dma-isa.c b/arch/arm/kernel/dma-isa.c
index 0a3e9ad297d8..2f080a35a2d9 100644
--- a/arch/arm/kernel/dma-isa.c
+++ b/arch/arm/kernel/dma-isa.c
@@ -216,7 +216,7 @@ void __init isa_init_dma(dma_t *dma)
 
 		request_dma(DMA_ISA_CASCADE, "cascade");
 
-		for (i = 0; i < sizeof(dma_resources) / sizeof(dma_resources[0]); i++)
+		for (i = 0; i < ARRAY_SIZE(dma_resources); i++)
 			request_resource(&ioport_resource, dma_resources + i);
 	}
 }
-- 
cgit v1.2.3-59-g8ed1b


From e8f2af17757b54db7f307b75e088489c480eb889 Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jeff@garzik.org>
Date: Fri, 26 Oct 2007 05:40:25 -0400
Subject: [ARM] Misc minor interrupt handler cleanups

mach-integrator/pci_v3.c: no need to reference 'irq' arg, its constant

mach-omap1/pm.c: remove extra whitespace

arch/arm/mach-sa1100/ssp.c: remove braces around single C stmt

arch/arm/plat-omap/mcbsp.c:
	- remove pointless casts from void*
	- make longer lines more readable

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-integrator/pci_v3.c |  8 +++++---
 arch/arm/mach-omap1/pm.c          |  2 +-
 arch/arm/mach-sa1100/ssp.c        |  3 +--
 arch/arm/plat-omap/mcbsp.c        | 20 ++++++++++++--------
 4 files changed, 19 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index d4d8134ce567..d55fa4e9bb43 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -440,7 +440,7 @@ v3_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	return 1;
 }
 
-static irqreturn_t v3_irq(int irq, void *devid)
+static irqreturn_t v3_irq(int dummy, void *devid)
 {
 #ifdef CONFIG_DEBUG_LL
 	struct pt_regs *regs = get_irq_regs();
@@ -448,8 +448,10 @@ static irqreturn_t v3_irq(int irq, void *devid)
 	unsigned long instr = *(unsigned long *)pc;
 	char buf[128];
 
-	sprintf(buf, "V3 int %d: pc=0x%08lx [%08lx] LBFADDR=%08x LBFCODE=%02x ISTAT=%02x\n", irq,
-		pc, instr, __raw_readl(SC_LBFADDR), __raw_readl(SC_LBFCODE) & 255,
+	sprintf(buf, "V3 int %d: pc=0x%08lx [%08lx] LBFADDR=%08x LBFCODE=%02x "
+		"ISTAT=%02x\n", IRQ_AP_V3INT, pc, instr,
+		__raw_readl(SC_LBFADDR),
+		__raw_readl(SC_LBFCODE) & 255,
 		v3_readb(V3_LB_ISTAT));
 	printascii(buf);
 #endif
diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index d9805e3d9304..06b7e54a0128 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -639,7 +639,7 @@ static void omap_pm_finish(void)
 }
 
 
-static irqreturn_t  omap_wakeup_interrupt(int irq, void *dev)
+static irqreturn_t omap_wakeup_interrupt(int irq, void *dev)
 {
 	return IRQ_HANDLED;
 }
diff --git a/arch/arm/mach-sa1100/ssp.c b/arch/arm/mach-sa1100/ssp.c
index 59703c6fb29b..06206ceb312e 100644
--- a/arch/arm/mach-sa1100/ssp.c
+++ b/arch/arm/mach-sa1100/ssp.c
@@ -29,9 +29,8 @@ static irqreturn_t ssp_interrupt(int irq, void *dev_id)
 {
 	unsigned int status = Ser4SSSR;
 
-	if (status & SSSR_ROR) {
+	if (status & SSSR_ROR)
 		printk(KERN_WARNING "SSP: receiver overrun\n");
-	}
 
 	Ser4SSSR = SSSR_ROR;
 
diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index f7b9ccdaacbc..2af5bd5a1344 100644
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -98,9 +98,10 @@ static void omap_mcbsp_dump_reg(u8 id)
 
 static irqreturn_t omap_mcbsp_tx_irq_handler(int irq, void *dev_id)
 {
-	struct omap_mcbsp * mcbsp_tx = (struct omap_mcbsp *)(dev_id);
+	struct omap_mcbsp *mcbsp_tx = dev_id;
 
-	DBG("TX IRQ callback : 0x%x\n", OMAP_MCBSP_READ(mcbsp_tx->io_base, SPCR2));
+	DBG("TX IRQ callback : 0x%x\n",
+	    OMAP_MCBSP_READ(mcbsp_tx->io_base, SPCR2));
 
 	complete(&mcbsp_tx->tx_irq_completion);
 	return IRQ_HANDLED;
@@ -108,9 +109,10 @@ static irqreturn_t omap_mcbsp_tx_irq_handler(int irq, void *dev_id)
 
 static irqreturn_t omap_mcbsp_rx_irq_handler(int irq, void *dev_id)
 {
-	struct omap_mcbsp * mcbsp_rx = (struct omap_mcbsp *)(dev_id);
+	struct omap_mcbsp *mcbsp_rx = dev_id;
 
-	DBG("RX IRQ callback : 0x%x\n", OMAP_MCBSP_READ(mcbsp_rx->io_base, SPCR2));
+	DBG("RX IRQ callback : 0x%x\n",
+	    OMAP_MCBSP_READ(mcbsp_rx->io_base, SPCR2));
 
 	complete(&mcbsp_rx->rx_irq_completion);
 	return IRQ_HANDLED;
@@ -118,9 +120,10 @@ static irqreturn_t omap_mcbsp_rx_irq_handler(int irq, void *dev_id)
 
 static void omap_mcbsp_tx_dma_callback(int lch, u16 ch_status, void *data)
 {
-	struct omap_mcbsp * mcbsp_dma_tx = (struct omap_mcbsp *)(data);
+	struct omap_mcbsp *mcbsp_dma_tx = data;
 
-	DBG("TX DMA callback : 0x%x\n", OMAP_MCBSP_READ(mcbsp_dma_tx->io_base, SPCR2));
+	DBG("TX DMA callback : 0x%x\n",
+	    OMAP_MCBSP_READ(mcbsp_dma_tx->io_base, SPCR2));
 
 	/* We can free the channels */
 	omap_free_dma(mcbsp_dma_tx->dma_tx_lch);
@@ -131,9 +134,10 @@ static void omap_mcbsp_tx_dma_callback(int lch, u16 ch_status, void *data)
 
 static void omap_mcbsp_rx_dma_callback(int lch, u16 ch_status, void *data)
 {
-	struct omap_mcbsp * mcbsp_dma_rx = (struct omap_mcbsp *)(data);
+	struct omap_mcbsp *mcbsp_dma_rx = data;
 
-	DBG("RX DMA callback : 0x%x\n", OMAP_MCBSP_READ(mcbsp_dma_rx->io_base, SPCR2));
+	DBG("RX DMA callback : 0x%x\n",
+	    OMAP_MCBSP_READ(mcbsp_dma_rx->io_base, SPCR2));
 
 	/* We can free the channels */
 	omap_free_dma(mcbsp_dma_rx->dma_rx_lch);
-- 
cgit v1.2.3-59-g8ed1b


From 2a7057e306b198e1e0d7db8615d8e9c69b880913 Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jeff@garzik.org>
Date: Fri, 26 Oct 2007 05:40:22 -0400
Subject: [ARM] Remove pointless casts from void pointers,

mostly in and around irq handlers.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/ssp.c            | 2 +-
 arch/arm/mach-s3c2410/usb-simtec.c | 2 +-
 arch/arm/plat-omap/mailbox.c       | 2 +-
 sound/oss/waveartist.c             | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c
index 422afee88169..b2eb38543d1c 100644
--- a/arch/arm/mach-pxa/ssp.c
+++ b/arch/arm/mach-pxa/ssp.c
@@ -67,7 +67,7 @@ static int use_count[PXA_SSP_PORTS] = {0, 0, 0};
 
 static irqreturn_t ssp_interrupt(int irq, void *dev_id)
 {
-	struct ssp_dev *dev = (struct ssp_dev*) dev_id;
+	struct ssp_dev *dev = dev_id;
 	unsigned int status = SSSR_P(dev->port);
 
 	SSSR_P(dev->port) = status; /* clear status bits */
diff --git a/arch/arm/mach-s3c2410/usb-simtec.c b/arch/arm/mach-s3c2410/usb-simtec.c
index bcd562ac1d3d..6aec86a5da56 100644
--- a/arch/arm/mach-s3c2410/usb-simtec.c
+++ b/arch/arm/mach-s3c2410/usb-simtec.c
@@ -60,7 +60,7 @@ usb_simtec_powercontrol(int port, int to)
 static irqreturn_t
 usb_simtec_ocirq(int irq, void *pw)
 {
-	struct s3c2410_hcd_info *info = (struct s3c2410_hcd_info *)pw;
+	struct s3c2410_hcd_info *info = pw;
 
 	if (s3c2410_gpio_getpin(S3C2410_GPG10) == 0) {
 		pr_debug("usb_simtec: over-current irq (oc detected)\n");
diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c
index 0360b1f14d11..45a77df668f1 100644
--- a/arch/arm/plat-omap/mailbox.c
+++ b/arch/arm/plat-omap/mailbox.c
@@ -212,7 +212,7 @@ static void __mbox_rx_interrupt(struct omap_mbox *mbox)
 
 static irqreturn_t mbox_interrupt(int irq, void *p)
 {
-	struct omap_mbox *mbox = (struct omap_mbox *)p;
+	struct omap_mbox *mbox = p;
 
 	if (is_mbox_irq(mbox, IRQ_TX))
 		__mbox_tx_interrupt(mbox);
diff --git a/sound/oss/waveartist.c b/sound/oss/waveartist.c
index b48c72923a13..88490418f932 100644
--- a/sound/oss/waveartist.c
+++ b/sound/oss/waveartist.c
@@ -835,7 +835,7 @@ static struct audio_driver waveartist_audio_driver = {
 static irqreturn_t
 waveartist_intr(int irq, void *dev_id)
 {
-	wavnc_info *devc = (wavnc_info *)dev_id;
+	wavnc_info *devc = dev_id;
 	int	   irqstatus, status;
 
 	spin_lock(&waveartist_lock);
-- 
cgit v1.2.3-59-g8ed1b


From e173dbf68869dd1fe64c16b8d6ae2fbe6a3b2f89 Mon Sep 17 00:00:00 2001
From: "Robert P. J. Day" <rpjday@crashcourse.ca>
Date: Wed, 21 Nov 2007 14:51:49 -0800
Subject: [ARM] remove reference to non-existent MTD_OBSOLETE_CHIPS

The CONFIG variable MTD_OBSOLETE_CHIPS was deleted in commit
ba7cc09c9c9e29a57045dc5bbf843ac1cfad3283.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/configs/collie_defconfig | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/configs/collie_defconfig b/arch/arm/configs/collie_defconfig
index 970c8c772eb7..4264e273202d 100644
--- a/arch/arm/configs/collie_defconfig
+++ b/arch/arm/configs/collie_defconfig
@@ -367,7 +367,6 @@ CONFIG_MTD_CFI_UTIL=y
 # CONFIG_MTD_RAM is not set
 # CONFIG_MTD_ROM is not set
 # CONFIG_MTD_ABSENT is not set
-CONFIG_MTD_OBSOLETE_CHIPS=y
 CONFIG_MTD_SHARP=y
 # CONFIG_MTD_XIP is not set
 
-- 
cgit v1.2.3-59-g8ed1b


From 7b544c99e0328937932022da3cbdd38cf3f072ec Mon Sep 17 00:00:00 2001
From: "George G. Davis" <gdavis@mvista.com>
Date: Sat, 1 Dec 2007 05:49:41 +0100
Subject: [ARM] 4687/1: Trivial arch/arm/kernel/entry-common.S comment fix

Make the comment match the code

Signed-off-by: George G. Davis <gdavis@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/entry-common.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 33e6cc2ffd3b..6c90c50a9ee3 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -72,7 +72,7 @@ no_work_pending:
 	ldr	r1, [sp, #S_PSR]		@ get calling cpsr
 	ldr	lr, [sp, #S_PC]!		@ get pc
 	msr	spsr_cxsf, r1			@ save in spsr_svc
-	ldmdb	sp, {r0 - lr}^			@ get calling r1 - lr
+	ldmdb	sp, {r0 - lr}^			@ get calling r0 - lr
 	mov	r0, r0
 	add	sp, sp, #S_FRAME_SIZE - S_PC
 	movs	pc, lr				@ return & move spsr_svc into cpsr
-- 
cgit v1.2.3-59-g8ed1b


From 70b6f2b4af709bded5220bcd8f3b4e255de20411 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Tue, 4 Dec 2007 14:33:33 +0100
Subject: [ARM] 4689/1: small comment wrap fix

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/entry-armv.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 29dec080a604..d65b07207b61 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -11,8 +11,8 @@
  *
  *  Low-level vector interface routines
  *
- *  Note:  there is a StrongARM bug in the STMIA rn, {regs}^ instruction that causes
- *  it to save wrong values...  Be aware!
+ *  Note:  there is a StrongARM bug in the STMIA rn, {regs}^ instruction
+ *  that causes it to save wrong values...  Be aware!
  */
 
 #include <asm/memory.h>
-- 
cgit v1.2.3-59-g8ed1b


From ddf4e42c6a109392851d8843e2699bffd3c476bf Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Tue, 24 Jul 2007 18:37:01 +0200
Subject: [ARM] CONFIG_DEBUG_STACK_USAGE

In early 2.6 days stack utilization instrumentation was made
configurable. Seems that arm misses the DEBUG_STACK_USAGE option.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig.debug | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 18101f5f5f24..192ee01a9ba2 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -43,6 +43,12 @@ config DEBUG_ERRORS
 	  you are concerned with the code size or don't want to see these
 	  messages.
 
+config DEBUG_STACK_USAGE
+	bool "Enable stack utilization instrumentation"
+	depends on DEBUG_KERNEL
+	help
+	  Enables the display of the minimum amount of free stack which each
+	  task has ever had available in the sysrq-T output.
 
 # These options are only for real kernel hackers who want to get their hands dirty.
 config DEBUG_LL
-- 
cgit v1.2.3-59-g8ed1b


From 1d7d4f54b1337bf64605dc9cb3c540f67843be39 Mon Sep 17 00:00:00 2001
From: Lucas Woods <woodzy@gmail.com>
Date: Wed, 21 Nov 2007 14:51:51 -0800
Subject: [ARM] remove duplicate includes

Signed-off-by: Lucas Woods <woodzy@gmail.com>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/common/rtctime.c            | 1 -
 arch/arm/mach-ep93xx/core.c          | 1 -
 arch/arm/mach-ixp23xx/core.c         | 1 -
 arch/arm/mach-ixp23xx/espresso.c     | 2 --
 arch/arm/mach-ixp23xx/ixdp2351.c     | 2 --
 arch/arm/mach-ixp23xx/roadrunner.c   | 2 --
 arch/arm/mach-ixp4xx/nslu2-power.c   | 1 -
 arch/arm/mach-omap1/board-nokia770.c | 1 -
 arch/arm/mach-omap1/board-osk.c      | 1 -
 arch/arm/mach-omap1/board-palmtt.c   | 1 -
 arch/arm/mach-omap1/board-palmz71.c  | 1 -
 arch/arm/mach-omap2/board-apollon.c  | 1 -
 12 files changed, 15 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/common/rtctime.c b/arch/arm/common/rtctime.c
index bf1075e1f571..f53bca46e23c 100644
--- a/arch/arm/common/rtctime.c
+++ b/arch/arm/common/rtctime.c
@@ -20,7 +20,6 @@
 #include <linux/capability.h>
 #include <linux/device.h>
 #include <linux/mutex.h>
-#include <linux/rtc.h>
 
 #include <asm/rtc.h>
 #include <asm/semaphore.h>
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 70b2c7801110..f8f001dd27d8 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -21,7 +21,6 @@
 #include <linux/serial.h>
 #include <linux/tty.h>
 #include <linux/bitops.h>
-#include <linux/serial.h>
 #include <linux/serial_8250.h>
 #include <linux/serial_core.h>
 #include <linux/device.h>
diff --git a/arch/arm/mach-ixp23xx/core.c b/arch/arm/mach-ixp23xx/core.c
index 16356ffc86ae..5fea5a132939 100644
--- a/arch/arm/mach-ixp23xx/core.c
+++ b/arch/arm/mach-ixp23xx/core.c
@@ -22,7 +22,6 @@
 #include <linux/serial.h>
 #include <linux/tty.h>
 #include <linux/bitops.h>
-#include <linux/serial.h>
 #include <linux/serial_8250.h>
 #include <linux/serial_core.h>
 #include <linux/device.h>
diff --git a/arch/arm/mach-ixp23xx/espresso.c b/arch/arm/mach-ixp23xx/espresso.c
index 7a85ced56718..d3a779a7a35f 100644
--- a/arch/arm/mach-ixp23xx/espresso.c
+++ b/arch/arm/mach-ixp23xx/espresso.c
@@ -19,7 +19,6 @@
 #include <linux/tty.h>
 #include <linux/bitops.h>
 #include <linux/ioport.h>
-#include <linux/serial.h>
 #include <linux/serial_8250.h>
 #include <linux/serial_core.h>
 #include <linux/device.h>
@@ -40,7 +39,6 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 #include <asm/mach/arch.h>
-#include <asm/mach/irq.h>
 #include <asm/mach/pci.h>
 
 static int __init espresso_pci_init(void)
diff --git a/arch/arm/mach-ixp23xx/ixdp2351.c b/arch/arm/mach-ixp23xx/ixdp2351.c
index c41a6b5a0acc..5c5d4d66dee8 100644
--- a/arch/arm/mach-ixp23xx/ixdp2351.c
+++ b/arch/arm/mach-ixp23xx/ixdp2351.c
@@ -24,7 +24,6 @@
 #include <linux/tty.h>
 #include <linux/bitops.h>
 #include <linux/ioport.h>
-#include <linux/serial.h>
 #include <linux/serial_8250.h>
 #include <linux/serial_core.h>
 #include <linux/device.h>
@@ -44,7 +43,6 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 #include <asm/mach/arch.h>
-#include <asm/mach/irq.h>
 #include <asm/mach/pci.h>
 
 /*
diff --git a/arch/arm/mach-ixp23xx/roadrunner.c b/arch/arm/mach-ixp23xx/roadrunner.c
index e35644961aa4..f0f70ba1e46d 100644
--- a/arch/arm/mach-ixp23xx/roadrunner.c
+++ b/arch/arm/mach-ixp23xx/roadrunner.c
@@ -23,7 +23,6 @@
 #include <linux/tty.h>
 #include <linux/bitops.h>
 #include <linux/ioport.h>
-#include <linux/serial.h>
 #include <linux/serial_8250.h>
 #include <linux/serial_core.h>
 #include <linux/device.h>
@@ -44,7 +43,6 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 #include <asm/mach/arch.h>
-#include <asm/mach/irq.h>
 #include <asm/mach/pci.h>
 
 /*
diff --git a/arch/arm/mach-ixp4xx/nslu2-power.c b/arch/arm/mach-ixp4xx/nslu2-power.c
index acd71e9c38a7..6f10dc208320 100644
--- a/arch/arm/mach-ixp4xx/nslu2-power.c
+++ b/arch/arm/mach-ixp4xx/nslu2-power.c
@@ -21,7 +21,6 @@
 #include <linux/reboot.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
-#include <linux/reboot.h>
 
 #include <asm/mach-types.h>
 
diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c
index 182a98a9df4c..e2c8ffd75cff 100644
--- a/arch/arm/mach-omap1/board-nokia770.c
+++ b/arch/arm/mach-omap1/board-nokia770.c
@@ -32,7 +32,6 @@
 #include <asm/arch/common.h>
 #include <asm/arch/dsp_common.h>
 #include <asm/arch/aic23.h>
-#include <asm/arch/gpio.h>
 #include <asm/arch/omapfb.h>
 #include <asm/arch/lcd_mipid.h>
 
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index 5db182da322b..4081a42db91e 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -31,7 +31,6 @@
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
-#include <linux/interrupt.h>
 #include <linux/i2c.h>
 
 #include <linux/mtd/mtd.h>
diff --git a/arch/arm/mach-omap1/board-palmtt.c b/arch/arm/mach-omap1/board-palmtt.c
index e47010fec275..ed7094a70064 100644
--- a/arch/arm/mach-omap1/board-palmtt.c
+++ b/arch/arm/mach-omap1/board-palmtt.c
@@ -42,7 +42,6 @@
 #include <asm/arch/common.h>
 #include <asm/arch/omap-alsa.h>
 
-#include <linux/input.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
 
diff --git a/arch/arm/mach-omap1/board-palmz71.c b/arch/arm/mach-omap1/board-palmz71.c
index c275d517764a..a9a0f6610c3d 100644
--- a/arch/arm/mach-omap1/board-palmz71.c
+++ b/arch/arm/mach-omap1/board-palmz71.c
@@ -44,7 +44,6 @@
 #include <asm/arch/common.h>
 #include <asm/arch/omap-alsa.h>
 
-#include <linux/input.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
 
diff --git a/arch/arm/mach-omap2/board-apollon.c b/arch/arm/mach-omap2/board-apollon.c
index 3bb49c17c858..94e38cc2bb6c 100644
--- a/arch/arm/mach-omap2/board-apollon.c
+++ b/arch/arm/mach-omap2/board-apollon.c
@@ -26,7 +26,6 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/leds.h>
-#include <linux/irq.h>
 
 #include <asm/hardware.h>
 #include <asm/mach-types.h>
-- 
cgit v1.2.3-59-g8ed1b


From b696b6b448d3ec5f882aa346ce544e00763e7b3d Mon Sep 17 00:00:00 2001
From: Gordon Farquharson <gordonfarquharson@gmail.com>
Date: Sat, 26 Jan 2008 08:35:44 +0100
Subject: [ARM] 4770/1: GLAN Tank: correct physmap_flash_data width field

This patch is required, in conjunction with the patch submitted to
linux-mtd [1], to access the flash memory device in the GLAN Tank.

Without the patches, the boot log shows

physmap platform flash device: 00080000 at f0000000
...
physmap-flash physmap-flash.0: map_probe failed

whereas with the patches, the boot log shows

physmap platform flash device: 00080000 at f0000000
Found: ST M29W400DB
physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank
number of JEDEC chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
...
cmdlinepart partition parsing not available
Searching for RedBoot partition table in physmap-flash.0 at offset 0x70000
No RedBoot partition table detected in physmap-flash.0

The change made by this patch is required because the ST M29W400DB
flash memory chip in the GLAN Tank is used in 16 bit bus mode (~BYTE
pin is high when the board is powered on).

[1] http://lists.infradead.org/pipermail/linux-mtd/2008-January/020291.html

Signed-off-by: Gordon Farquharson <gordonfarquharson@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-iop32x/glantank.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c
index 6309f9a99fd5..74c65ce221de 100644
--- a/arch/arm/mach-iop32x/glantank.c
+++ b/arch/arm/mach-iop32x/glantank.c
@@ -119,7 +119,7 @@ subsys_initcall(glantank_pci_init);
  * GLAN Tank machine initialization.
  */
 static struct physmap_flash_data glantank_flash_data = {
-	.width		= 1,
+	.width		= 2,
 };
 
 static struct resource glantank_flash_resource = {
-- 
cgit v1.2.3-59-g8ed1b


From b66545e7ae80b4b0eef3f7884ef9260455070be9 Mon Sep 17 00:00:00 2001
From: Andrew Victor <andrew@sanpeople.com>
Date: Fri, 23 Nov 2007 16:09:10 +0100
Subject: [ARM] 4602/3: AT91: debugfs interface to view GPIO pin state

This patch adds a debug interface (if CONFIG_DEBUG_FS is selected) to
display the basic configuration and current state of the GPIO pins on
the Atmel AT91 processors.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/gpio.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index aa2d365c93fb..6aeddd68d8af 100644
--- a/arch/arm/mach-at91/gpio.c
+++ b/arch/arm/mach-at91/gpio.c
@@ -13,6 +13,8 @@
 #include <linux/errno.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
 #include <linux/module.h>
@@ -414,6 +416,66 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
 
 /*--------------------------------------------------------------------------*/
 
+#ifdef CONFIG_DEBUG_FS
+
+static int at91_gpio_show(struct seq_file *s, void *unused)
+{
+	int bank, j;
+
+	/* print heading */
+	seq_printf(s, "Pin\t");
+	for (bank = 0; bank < gpio_banks; bank++) {
+		seq_printf(s, "PIO%c\t", 'A' + bank);
+	};
+	seq_printf(s, "\n\n");
+
+	/* print pin status */
+	for (j = 0; j < 32; j++) {
+		seq_printf(s, "%i:\t", j);
+
+		for (bank = 0; bank < gpio_banks; bank++) {
+			unsigned	pin  = PIN_BASE + (32 * bank) + j;
+			void __iomem	*pio = pin_to_controller(pin);
+			unsigned	mask = pin_to_mask(pin);
+
+			if (__raw_readl(pio + PIO_PSR) & mask)
+				seq_printf(s, "GPIO:%s", __raw_readl(pio + PIO_PDSR) & mask ? "1" : "0");
+			else
+				seq_printf(s, "%s", __raw_readl(pio + PIO_ABSR) & mask ? "B" : "A");
+
+			seq_printf(s, "\t");
+		}
+
+		seq_printf(s, "\n");
+	}
+
+	return 0;
+}
+
+static int at91_gpio_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, at91_gpio_show, NULL);
+}
+
+static const struct file_operations at91_gpio_operations = {
+	.open		= at91_gpio_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int __init at91_gpio_debugfs_init(void)
+{
+	/* /sys/kernel/debug/at91_gpio */
+	(void) debugfs_create_file("at91_gpio", S_IFREG | S_IRUGO, NULL, NULL, &at91_gpio_operations);
+	return 0;
+}
+postcore_initcall(at91_gpio_debugfs_init);
+
+#endif
+
+/*--------------------------------------------------------------------------*/
+
 /*
  * Called from the processor-specific init to enable GPIO interrupt support.
  */
-- 
cgit v1.2.3-59-g8ed1b


From 5170874816fc1eb2b0b865a70b6f520268227908 Mon Sep 17 00:00:00 2001
From: Andrew Victor <andrew@sanpeople.com>
Date: Tue, 20 Nov 2007 09:40:12 +0100
Subject: [ARM] 4610/2: AT91: Support for STN LCD on SAM9261-EK board.

Add STN LCD support on the Atmel AT91SAM9261-EK board.
Uses a black and white screen from Hitachi: SP06Q002.

Signed-off-by: Nicolas Ferre <nicolas.ferre@rfo.atmel.com>
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/board-sam9261ek.c | 76 ++++++++++++++++++++++++++++++++----
 1 file changed, 69 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c
index 550ae59a3aca..594c5c100ef9 100644
--- a/arch/arm/mach-at91/board-sam9261ek.c
+++ b/arch/arm/mach-at91/board-sam9261ek.c
@@ -280,6 +280,68 @@ static struct spi_board_info ek_spi_devices[] = {
  * LCD Controller
  */
 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
+
+#if defined(CONFIG_FB_ATMEL_STN)
+
+/* STN */
+static struct fb_videomode at91_stn_modes[] = {
+        {
+		.name           = "SP06Q002 @ 75",
+		.refresh        = 75,
+		.xres           = 320,          .yres           = 240,
+		.pixclock       = KHZ2PICOS(1440),
+
+		.left_margin    = 1,            .right_margin   = 1,
+		.upper_margin   = 0,            .lower_margin   = 0,
+		.hsync_len      = 1,            .vsync_len      = 1,
+
+		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+		.vmode          = FB_VMODE_NONINTERLACED,
+        },
+};
+
+static struct fb_monspecs at91fb_default_stn_monspecs = {
+        .manufacturer   = "HIT",
+        .monitor        = "SP06Q002",
+
+        .modedb         = at91_stn_modes,
+        .modedb_len     = ARRAY_SIZE(at91_stn_modes),
+        .hfmin          = 15000,
+        .hfmax          = 64000,
+        .vfmin          = 50,
+        .vfmax          = 150,
+};
+
+#define AT91SAM9261_DEFAULT_STN_LCDCON2	(ATMEL_LCDC_MEMOR_LITTLE \
+					| ATMEL_LCDC_DISTYPE_STNMONO \
+					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
+					| ATMEL_LCDC_IFWIDTH_4 \
+					| ATMEL_LCDC_SCANMOD_SINGLE)
+
+static void at91_lcdc_stn_power_control(int on)
+{
+	/* backlight */
+	if (on) {	/* power up */
+		at91_set_gpio_value(AT91_PIN_PC14, 0);
+		at91_set_gpio_value(AT91_PIN_PC15, 0);
+	} else {	/* power down */
+		at91_set_gpio_value(AT91_PIN_PC14, 1);
+		at91_set_gpio_value(AT91_PIN_PC15, 1);
+	}
+}
+
+static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
+	.default_bpp			= 1,
+	.default_dmacon			= ATMEL_LCDC_DMAEN,
+	.default_lcdcon2		= AT91SAM9261_DEFAULT_STN_LCDCON2,
+	.default_monspecs		= &at91fb_default_stn_monspecs,
+	.atmel_lcdfb_power_control	= at91_lcdc_stn_power_control,
+	.guard_time			= 1,
+};
+
+#else
+
+/* TFT */
 static struct fb_videomode at91_tft_vga_modes[] = {
 	{
 	        .name           = "TX09D50VM1CCA @ 60",
@@ -296,7 +358,7 @@ static struct fb_videomode at91_tft_vga_modes[] = {
 	},
 };
 
-static struct fb_monspecs at91fb_default_monspecs = {
+static struct fb_monspecs at91fb_default_tft_monspecs = {
 	.manufacturer	= "HIT",
 	.monitor        = "TX09D50VM1CCA",
 
@@ -308,11 +370,11 @@ static struct fb_monspecs at91fb_default_monspecs = {
 	.vfmax		= 150,
 };
 
-#define AT91SAM9261_DEFAULT_LCDCON2 	(ATMEL_LCDC_MEMOR_LITTLE \
+#define AT91SAM9261_DEFAULT_TFT_LCDCON2	(ATMEL_LCDC_MEMOR_LITTLE \
 					| ATMEL_LCDC_DISTYPE_TFT    \
 					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 
-static void at91_lcdc_power_control(int on)
+static void at91_lcdc_tft_power_control(int on)
 {
 	if (on)
 		at91_set_gpio_value(AT91_PIN_PA12, 0);	/* power up */
@@ -320,15 +382,15 @@ static void at91_lcdc_power_control(int on)
 		at91_set_gpio_value(AT91_PIN_PA12, 1);	/* power down */
 }
 
-/* Driver datas */
 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 	.default_bpp			= 16,
 	.default_dmacon			= ATMEL_LCDC_DMAEN,
-	.default_lcdcon2		= AT91SAM9261_DEFAULT_LCDCON2,
-	.default_monspecs		= &at91fb_default_monspecs,
-	.atmel_lcdfb_power_control	= at91_lcdc_power_control,
+	.default_lcdcon2		= AT91SAM9261_DEFAULT_TFT_LCDCON2,
+	.default_monspecs		= &at91fb_default_tft_monspecs,
+	.atmel_lcdfb_power_control	= at91_lcdc_tft_power_control,
 	.guard_time			= 1,
 };
+#endif
 
 #else
 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
-- 
cgit v1.2.3-59-g8ed1b


From 87fee013a23ad02821699aef5b76891b42959182 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <lg@denx.de>
Date: Tue, 13 Nov 2007 19:49:25 +0100
Subject: [ARM] 4647/1: at91rm9200: Remove redundant machine-type verification
 and manipulation

AT91RM9200 needlessly verifies machine-type numbers of
supported / known platforms and overwrites it for unknown
ones. Remove it.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/boot/compressed/Makefile          |  4 --
 arch/arm/boot/compressed/head-at91rm9200.S | 81 ------------------------------
 2 files changed, 85 deletions(-)
 delete mode 100644 arch/arm/boot/compressed/head-at91rm9200.S

(limited to 'arch')

diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 5fde99f9d9f9..de9d9ee50958 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -44,10 +44,6 @@ ifeq ($(CONFIG_PXA_SHARPSL),y)
 OBJS		+= head-sharpsl.o
 endif
 
-ifeq ($(CONFIG_ARCH_AT91RM9200),y)
-OBJS		+= head-at91rm9200.o
-endif
-
 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
 ifeq ($(CONFIG_CPU_CP15),y)
 OBJS		+= big-endian.o
diff --git a/arch/arm/boot/compressed/head-at91rm9200.S b/arch/arm/boot/compressed/head-at91rm9200.S
deleted file mode 100644
index 11782ccd93a1..000000000000
--- a/arch/arm/boot/compressed/head-at91rm9200.S
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * linux/arch/arm/boot/compressed/head-at91rm9200.S
- *
- *  Copyright (C) 2003 SAN People
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- */
-#include <asm/mach-types.h>
-
-		.section	".start", "ax"
-
-		@ Atmel AT91RM9200-DK : 262
-		mov	r3,	#(MACH_TYPE_AT91RM9200DK & 0xff)
-		orr	r3, r3, #(MACH_TYPE_AT91RM9200DK & 0xff00)
-		cmp	r7, r3
-		beq	99f
-
-		@ Cogent CSB337 : 399
-		mov	r3,	#(MACH_TYPE_CSB337 & 0xff)
-		orr	r3, r3, #(MACH_TYPE_CSB337 & 0xff00)
-		cmp	r7, r3
-		beq	99f
-
-		@ Cogent CSB637 : 648
-		mov	r3,	#(MACH_TYPE_CSB637 & 0xff)
-		orr	r3, r3,	#(MACH_TYPE_CSB637 & 0xff00)
-		cmp	r7, r3
-		beq	99f
-
-		@ Atmel AT91RM9200-EK : 705
-		mov	r3,	#(MACH_TYPE_AT91RM9200EK & 0xff)
-		orr	r3, r3, #(MACH_TYPE_AT91RM9200EK & 0xff00)
-		cmp	r7, r3
-		beq	99f
-
-		@ Conitec Carmeva : 769
-		mov	r3,	#(MACH_TYPE_CARMEVA & 0xff)
-		orr	r3, r3, #(MACH_TYPE_CARMEVA & 0xff00)
-		cmp	r7, r3
-		beq	99f
-
-		@ KwikByte KB920x : 612
-		mov	r3,	#(MACH_TYPE_KB9200 & 0xff)
-		orr	r3, r3, #(MACH_TYPE_KB9200 & 0xff00)
-		cmp	r7, r3
-		beq	99f
-
-		@ Embest ATEB9200 : 923
-		mov	r3,	#(MACH_TYPE_ATEB9200 & 0xff)
-		orr	r3, r3,	#(MACH_TYPE_ATEB9200 & 0xff00)
-		cmp	r7, r3
-		beq	99f
-
-		@ Sperry-Sun KAFA : 662
-		mov	r3,	#(MACH_TYPE_KAFA & 0xff)
-		orr	r3, r3,	#(MACH_TYPE_KAFA & 0xff00)
-		cmp	r7, r3
-		beq	99f
-
-		@ picotux 200 : 963
-		mov	r3,	#(MACH_TYPE_PICOTUX2XX & 0xff)
-		orr	r3, r3, #(MACH_TYPE_PICOTUX2XX & 0xff00)
-		cmp	r7, r3
-		beq	99f
-
-		@ Ajeco 1ARM : 1075
-		mov	r3,	#(MACH_TYPE_ONEARM & 0xff)
-		orr	r3, r3, #(MACH_TYPE_ONEARM & 0xff00)
-		cmp	r7, r3
-		beq	99f
-
-		@ Unknown board, use the AT91RM9200DK board
-		@ mov	r7, #MACH_TYPE_AT91RM9200
-		mov	r7,	#(MACH_TYPE_AT91RM9200DK & 0xff)
-		orr	r7, r7, #(MACH_TYPE_AT91RM9200DK & 0xff00)
-
-99:
-- 
cgit v1.2.3-59-g8ed1b


From 7cbed2b507efd1bb19a574b8db14d5aad5936d6d Mon Sep 17 00:00:00 2001
From: Andrew Victor <andrew@sanpeople.com>
Date: Tue, 20 Nov 2007 08:46:53 +0100
Subject: [ARM] 4656/1: AT91: Tweak interrupt priorities

Slight tweaking of the default interrupt priorities (AIC) for the
integrated peripherals on the AT91RM9200, AT91SAM9260, AT91SAM9261 and
AT91SAM9263 processors.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/at91rm9200.c  | 30 +++++++++++++++---------------
 arch/arm/mach-at91/at91sam9260.c | 28 ++++++++++++++--------------
 arch/arm/mach-at91/at91sam9261.c | 28 ++++++++++++++--------------
 arch/arm/mach-at91/at91sam9263.c | 30 +++++++++++++++---------------
 4 files changed, 58 insertions(+), 58 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index 2cad2bf864be..d688c1dbd925 100644
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -301,28 +301,28 @@ void __init at91rm9200_initialize(unsigned long main_clock, unsigned short banks
 static unsigned int at91rm9200_default_irq_priority[NR_AIC_IRQS] __initdata = {
 	7,	/* Advanced Interrupt Controller (FIQ) */
 	7,	/* System Peripherals */
-	0,	/* Parallel IO Controller A */
-	0,	/* Parallel IO Controller B */
-	0,	/* Parallel IO Controller C */
-	0,	/* Parallel IO Controller D */
-	6,	/* USART 0 */
-	6,	/* USART 1 */
-	6,	/* USART 2 */
-	6,	/* USART 3 */
+	1,	/* Parallel IO Controller A */
+	1,	/* Parallel IO Controller B */
+	1,	/* Parallel IO Controller C */
+	1,	/* Parallel IO Controller D */
+	5,	/* USART 0 */
+	5,	/* USART 1 */
+	5,	/* USART 2 */
+	5,	/* USART 3 */
 	0,	/* Multimedia Card Interface */
-	4,	/* USB Device Port */
-	0,	/* Two-Wire Interface */
-	6,	/* Serial Peripheral Interface */
-	5,	/* Serial Synchronous Controller 0 */
-	5,	/* Serial Synchronous Controller 1 */
-	5,	/* Serial Synchronous Controller 2 */
+	2,	/* USB Device Port */
+	6,	/* Two-Wire Interface */
+	5,	/* Serial Peripheral Interface */
+	4,	/* Serial Synchronous Controller 0 */
+	4,	/* Serial Synchronous Controller 1 */
+	4,	/* Serial Synchronous Controller 2 */
 	0,	/* Timer Counter 0 */
 	0,	/* Timer Counter 1 */
 	0,	/* Timer Counter 2 */
 	0,	/* Timer Counter 3 */
 	0,	/* Timer Counter 4 */
 	0,	/* Timer Counter 5 */
-	3,	/* USB Host port */
+	2,	/* USB Host port */
 	3,	/* Ethernet MAC */
 	0,	/* Advanced Interrupt Controller (IRQ0) */
 	0,	/* Advanced Interrupt Controller (IRQ1) */
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index e47381e8aaba..18d06612ce8a 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -327,30 +327,30 @@ void __init at91sam9260_initialize(unsigned long main_clock)
 static unsigned int at91sam9260_default_irq_priority[NR_AIC_IRQS] __initdata = {
 	7,	/* Advanced Interrupt Controller */
 	7,	/* System Peripherals */
-	0,	/* Parallel IO Controller A */
-	0,	/* Parallel IO Controller B */
-	0,	/* Parallel IO Controller C */
+	1,	/* Parallel IO Controller A */
+	1,	/* Parallel IO Controller B */
+	1,	/* Parallel IO Controller C */
 	0,	/* Analog-to-Digital Converter */
-	6,	/* USART 0 */
-	6,	/* USART 1 */
-	6,	/* USART 2 */
+	5,	/* USART 0 */
+	5,	/* USART 1 */
+	5,	/* USART 2 */
 	0,	/* Multimedia Card Interface */
-	4,	/* USB Device Port */
-	0,	/* Two-Wire Interface */
-	6,	/* Serial Peripheral Interface 0 */
-	6,	/* Serial Peripheral Interface 1 */
+	2,	/* USB Device Port */
+	6,	/* Two-Wire Interface */
+	5,	/* Serial Peripheral Interface 0 */
+	5,	/* Serial Peripheral Interface 1 */
 	5,	/* Serial Synchronous Controller */
 	0,
 	0,
 	0,	/* Timer Counter 0 */
 	0,	/* Timer Counter 1 */
 	0,	/* Timer Counter 2 */
-	3,	/* USB Host port */
+	2,	/* USB Host port */
 	3,	/* Ethernet */
 	0,	/* Image Sensor Interface */
-	6,	/* USART 3 */
-	6,	/* USART 4 */
-	6,	/* USART 5 */
+	5,	/* USART 3 */
+	5,	/* USART 4 */
+	5,	/* USART 5 */
 	0,	/* Timer Counter 3 */
 	0,	/* Timer Counter 4 */
 	0,	/* Timer Counter 5 */
diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c
index dfe8c39c9fb9..90b87e1877d9 100644
--- a/arch/arm/mach-at91/at91sam9261.c
+++ b/arch/arm/mach-at91/at91sam9261.c
@@ -279,25 +279,25 @@ void __init at91sam9261_initialize(unsigned long main_clock)
 static unsigned int at91sam9261_default_irq_priority[NR_AIC_IRQS] __initdata = {
 	7,	/* Advanced Interrupt Controller */
 	7,	/* System Peripherals */
-	0,	/* Parallel IO Controller A */
-	0,	/* Parallel IO Controller B */
-	0,	/* Parallel IO Controller C */
+	1,	/* Parallel IO Controller A */
+	1,	/* Parallel IO Controller B */
+	1,	/* Parallel IO Controller C */
 	0,
-	6,	/* USART 0 */
-	6,	/* USART 1 */
-	6,	/* USART 2 */
+	5,	/* USART 0 */
+	5,	/* USART 1 */
+	5,	/* USART 2 */
 	0,	/* Multimedia Card Interface */
-	4,	/* USB Device Port */
-	0,	/* Two-Wire Interface */
-	6,	/* Serial Peripheral Interface 0 */
-	6,	/* Serial Peripheral Interface 1 */
-	5,	/* Serial Synchronous Controller 0 */
-	5,	/* Serial Synchronous Controller 1 */
-	5,	/* Serial Synchronous Controller 2 */
+	2,	/* USB Device Port */
+	6,	/* Two-Wire Interface */
+	5,	/* Serial Peripheral Interface 0 */
+	5,	/* Serial Peripheral Interface 1 */
+	4,	/* Serial Synchronous Controller 0 */
+	4,	/* Serial Synchronous Controller 1 */
+	4,	/* Serial Synchronous Controller 2 */
 	0,	/* Timer Counter 0 */
 	0,	/* Timer Counter 1 */
 	0,	/* Timer Counter 2 */
-	3,	/* USB Host port */
+	2,	/* USB Host port */
 	3,	/* LCD Controller */
 	0,
 	0,
diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c
index 00e27b177857..a53ba0f74351 100644
--- a/arch/arm/mach-at91/at91sam9263.c
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -304,34 +304,34 @@ void __init at91sam9263_initialize(unsigned long main_clock)
 static unsigned int at91sam9263_default_irq_priority[NR_AIC_IRQS] __initdata = {
 	7,	/* Advanced Interrupt Controller (FIQ) */
 	7,	/* System Peripherals */
-	0,	/* Parallel IO Controller A */
-	0,	/* Parallel IO Controller B */
-	0,	/* Parallel IO Controller C, D and E */
+	1,	/* Parallel IO Controller A */
+	1,	/* Parallel IO Controller B */
+	1,	/* Parallel IO Controller C, D and E */
 	0,
 	0,
-	6,	/* USART 0 */
-	6,	/* USART 1 */
-	6,	/* USART 2 */
+	5,	/* USART 0 */
+	5,	/* USART 1 */
+	5,	/* USART 2 */
 	0,	/* Multimedia Card Interface 0 */
 	0,	/* Multimedia Card Interface 1 */
-	4,	/* CAN */
-	0,	/* Two-Wire Interface */
-	6,	/* Serial Peripheral Interface 0 */
-	6,	/* Serial Peripheral Interface 1 */
-	5,	/* Serial Synchronous Controller 0 */
-	5,	/* Serial Synchronous Controller 1 */
-	6,	/* AC97 Controller */
+	3,	/* CAN */
+	6,	/* Two-Wire Interface */
+	5,	/* Serial Peripheral Interface 0 */
+	5,	/* Serial Peripheral Interface 1 */
+	4,	/* Serial Synchronous Controller 0 */
+	4,	/* Serial Synchronous Controller 1 */
+	5,	/* AC97 Controller */
 	0,	/* Timer Counter 0, 1 and 2 */
 	0,	/* Pulse Width Modulation Controller */
 	3,	/* Ethernet */
 	0,
 	0,	/* 2D Graphic Engine */
-	3,	/* USB Device Port */
+	2,	/* USB Device Port */
 	0,	/* Image Sensor Interface */
 	3,	/* LDC Controller */
 	0,	/* DMA Controller */
 	0,
-	3,	/* USB Host port */
+	2,	/* USB Host port */
 	0,	/* Advanced Interrupt Controller (IRQ0) */
 	0,	/* Advanced Interrupt Controller (IRQ1) */
 };
-- 
cgit v1.2.3-59-g8ed1b


From 5248c657898c018bcd23ef77759fa1d6c690bdf4 Mon Sep 17 00:00:00 2001
From: David Brownell <david-b@pacbell.net>
Date: Mon, 12 Nov 2007 17:59:10 +0100
Subject: [ARM] 4646/1: AT91: configurable HZ, default to 128

This makes HZ configurable on AT91, following the model used on OMAP.

It defaults to a power of two on AT91rm9200 chips, avoiding rounding
errors which come from dividing a 32 KiHz clock to generate scheduler
irqs; and uses 100 on AT91sam926x chips, using MCK/16 (multi-MHZ).

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Remy Bhmer <linux@bohmer.net>
Acked-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig           |  1 +
 arch/arm/mach-at91/Kconfig | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a04f507e7f2c..93e40b65fd0b 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -657,6 +657,7 @@ config HZ
 	default 128 if ARCH_L7200
 	default 200 if ARCH_EBSA110 || ARCH_S3C2410
 	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
+	default AT91_TIMER_HZ if ARCH_AT91
 	default 100
 
 config AEABI
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 05a9f8a1b45e..214733e897e5 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -219,6 +219,22 @@ config AT91_PROGRAMMABLE_CLOCKS
 	  Select this if you need to program one or more of the PCK0..PCK3
 	  programmable clock outputs.
 
+config AT91_TIMER_HZ
+       int "Kernel HZ (jiffies per second)"
+       range 32 1024
+       depends on ARCH_AT91
+       default "128" if ARCH_AT91RM9200
+       default "100"
+       help
+	  On AT91rm9200 chips where you're using a system clock derived
+	  from the 32768 Hz hardware clock, this tick rate should divide
+	  it exactly: use a power-of-two value, such as 128 or 256, to
+	  reduce timing errors caused by rounding.
+
+	  On AT91sam926x chips, or otherwise when using a higher precision
+	  system clock (of at least several MHz), rounding is less of a
+	  problem so it can be safer to use a decimal values like 100.
+
 endmenu
 
 endif
-- 
cgit v1.2.3-59-g8ed1b


From a50d49dbb72aff90601fda90ea37a02a606d2d90 Mon Sep 17 00:00:00 2001
From: David Brownell <david-b@pacbell.net>
Date: Fri, 28 Dec 2007 02:04:52 +0100
Subject: [ARM] 4734/1: at91sam9263ek: include IRQ for Ethernet PHY

On the at92sam9263ek board, tell the MACB driver the IRQ used
by its PHY.  This patch is taken from Andrew Victor's 2.6.23-at91
patchset; it matches board schematics.  (But it's currently a NOP
since the MACB driver doesn't yet use PHY irqs.)

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/board-sam9263ek.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index ab9dcc075454..a9dd59543ec7 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -163,6 +163,7 @@ static struct at91_mmc_data __initdata ek_mmc_data = {
  * MACB Ethernet device
  */
 static struct at91_eth_data __initdata ek_macb_data = {
+	.phy_irq_pin	= AT91_PIN_PE31,
 	.is_rmii	= 1,
 };
 
-- 
cgit v1.2.3-59-g8ed1b


From f06e656fb4f6f41ae9cba0f5d6948a6c7f6250ba Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Tue, 22 Jan 2008 11:37:32 +0100
Subject: [ARM] 4750/1: [AT91] STN LCD displays on SAM9261

Add support for STN LCD displays on Atmel AT91SAM9261-based boards.

Patch from Nicolas Ferre.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/at91sam9261_devices.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 64979a9023c2..1d03844a607a 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -507,6 +507,17 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 		return;
 	}
 
+#if defined(CONFIG_FB_ATMEL_STN)
+	at91_set_A_periph(AT91_PIN_PB0, 0);     /* LCDVSYNC */
+	at91_set_A_periph(AT91_PIN_PB1, 0);     /* LCDHSYNC */
+	at91_set_A_periph(AT91_PIN_PB2, 0);     /* LCDDOTCK */
+	at91_set_A_periph(AT91_PIN_PB3, 0);     /* LCDDEN */
+	at91_set_A_periph(AT91_PIN_PB4, 0);     /* LCDCC */
+	at91_set_A_periph(AT91_PIN_PB5, 0);     /* LCDD0 */
+	at91_set_A_periph(AT91_PIN_PB6, 0);     /* LCDD1 */
+	at91_set_A_periph(AT91_PIN_PB7, 0);     /* LCDD2 */
+	at91_set_A_periph(AT91_PIN_PB8, 0);     /* LCDD3 */
+#else
 	at91_set_A_periph(AT91_PIN_PB1, 0);	/* LCDHSYNC */
 	at91_set_A_periph(AT91_PIN_PB2, 0);	/* LCDDOTCK */
 	at91_set_A_periph(AT91_PIN_PB3, 0);	/* LCDDEN */
@@ -529,6 +540,7 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 	at91_set_B_periph(AT91_PIN_PB26, 0);	/* LCDD21 */
 	at91_set_B_periph(AT91_PIN_PB27, 0);	/* LCDD22 */
 	at91_set_B_periph(AT91_PIN_PB28, 0);	/* LCDD23 */
+#endif
 
 	lcdc_data = *data;
 	platform_device_register(&at91_lcdc_device);
-- 
cgit v1.2.3-59-g8ed1b


From e2920802351b3e01a3e70a26bb1bbb22f29da4cb Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Tue, 22 Jan 2008 11:43:26 +0100
Subject: [ARM] 4751/1: [AT91] ISI peripheral on SAM9263

Add support for the Image Sensor Interface (ISI) peripheral integrated
in the Atmel AT91SAM9263 processor.

Patch from MaLiK

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/at91sam9263_devices.c | 50 ++++++++++++++++++++++++++++++++
 include/asm-arm/arch-at91/board.h        |  3 ++
 2 files changed, 53 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index ac329a98e959..d50a8dfb916d 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -731,6 +731,56 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
 #endif
 
 
+/* --------------------------------------------------------------------
+ *  Image Sensor Interface
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_VIDEO_AT91_ISI) || defined(CONFIG_VIDEO_AT91_ISI_MODULE)
+
+struct resource isi_resources[] = {
+	[0] = {
+		.start	= AT91SAM9263_BASE_ISI,
+		.end	= AT91SAM9263_BASE_ISI + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91SAM9263_ID_ISI,
+		.end	= AT91SAM9263_ID_ISI,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91sam9263_isi_device = {
+	.name		= "at91_isi",
+	.id		= -1,
+	.resource	= isi_resources,
+	.num_resources	= ARRAY_SIZE(isi_resources),
+};
+
+void __init at91_add_device_isi(void)
+{
+	at91_set_A_periph(AT91_PIN_PE0, 0);	/* ISI_D0 */
+	at91_set_A_periph(AT91_PIN_PE1, 0);	/* ISI_D1 */
+	at91_set_A_periph(AT91_PIN_PE2, 0);	/* ISI_D2 */
+	at91_set_A_periph(AT91_PIN_PE3, 0);	/* ISI_D3 */
+	at91_set_A_periph(AT91_PIN_PE4, 0);	/* ISI_D4 */
+	at91_set_A_periph(AT91_PIN_PE5, 0);	/* ISI_D5 */
+	at91_set_A_periph(AT91_PIN_PE6, 0);	/* ISI_D6 */
+	at91_set_A_periph(AT91_PIN_PE7, 0);	/* ISI_D7 */
+	at91_set_A_periph(AT91_PIN_PE8, 0);	/* ISI_PCK */
+	at91_set_A_periph(AT91_PIN_PE9, 0);	/* ISI_HSYNC */
+	at91_set_A_periph(AT91_PIN_PE10, 0);	/* ISI_VSYNC */
+	at91_set_B_periph(AT91_PIN_PE11, 0);	/* ISI_MCK (PCK3) */
+	at91_set_B_periph(AT91_PIN_PE12, 0);	/* ISI_PD8 */
+	at91_set_B_periph(AT91_PIN_PE13, 0);	/* ISI_PD9 */
+	at91_set_B_periph(AT91_PIN_PE14, 0);	/* ISI_PD10 */
+	at91_set_B_periph(AT91_PIN_PE15, 0);	/* ISI_PD11 */
+}
+#else
+void __init at91_add_device_isi(void) {}
+#endif
+
+
 /* --------------------------------------------------------------------
  *  LEDs
  * -------------------------------------------------------------------- */
diff --git a/include/asm-arm/arch-at91/board.h b/include/asm-arm/arch-at91/board.h
index 79054965baa6..762148cc48c1 100644
--- a/include/asm-arm/arch-at91/board.h
+++ b/include/asm-arm/arch-at91/board.h
@@ -126,6 +126,9 @@ struct atmel_ac97_data {
 };
 extern void __init at91_add_device_ac97(struct atmel_ac97_data *data);
 
+ /* ISI */
+extern void __init at91_add_device_isi(void);
+
  /* LEDs */
 extern u8 at91_leds_cpu;
 extern u8 at91_leds_timer;
-- 
cgit v1.2.3-59-g8ed1b


From 884f5a6a8dc8646d5904f166adf3c558be57e1ab Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Wed, 23 Jan 2008 09:11:13 +0100
Subject: [ARM] 4752/1: [AT91] RTT, RTC and WDT peripherals on SAM9

Add platform_device and initialization for the RTT (Real Time Timer)
and WDT (Watchdog) integrated in the Atmel AT91SAM9 processors.

For SAM9263, register both RTT peripherals.
   [From: David Brownell <dbrownell@users.sourceforge.net>]

Provide platform_resources for RTT peripherals
  [From: David Brownell <dbrownell@users.sourceforge.net>]

Add support for RTC peripheral on AT91SAM9RL (same RTC peripherals as
AT91RM9200)
  [From: David Brownell <dbrownell@users.sourceforge.net>]

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/at91sam9260_devices.c | 47 ++++++++++++++++++++++
 arch/arm/mach-at91/at91sam9261_devices.c | 47 ++++++++++++++++++++++
 arch/arm/mach-at91/at91sam9263_devices.c | 63 +++++++++++++++++++++++++++++
 arch/arm/mach-at91/at91sam9rl_devices.c  | 68 ++++++++++++++++++++++++++++++++
 include/asm-arm/arch-at91/at91_rtt.h     |  8 ++--
 5 files changed, 229 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index 3091bf47d8c9..1533556fb873 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -538,6 +538,51 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 #endif
 
 
+/* --------------------------------------------------------------------
+ *  RTT
+ * -------------------------------------------------------------------- */
+
+static struct resource rtt_resources[] = {
+	{
+		.start	= AT91_BASE_SYS + AT91_RTT,
+		.end	= AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device at91sam9260_rtt_device = {
+	.name		= "at91_rtt",
+	.id		= -1,
+	.resource	= rtt_resources,
+	.num_resources	= ARRAY_SIZE(rtt_resources),
+};
+
+static void __init at91_add_device_rtt(void)
+{
+	platform_device_register(&at91sam9260_rtt_device);
+}
+
+
+/* --------------------------------------------------------------------
+ *  Watchdog
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
+static struct platform_device at91sam9260_wdt_device = {
+	.name		= "at91_wdt",
+	.id		= -1,
+	.num_resources	= 0,
+};
+
+static void __init at91_add_device_watchdog(void)
+{
+	platform_device_register(&at91sam9260_wdt_device);
+}
+#else
+static void __init at91_add_device_watchdog(void) {}
+#endif
+
+
 /* --------------------------------------------------------------------
  *  LEDs
  * -------------------------------------------------------------------- */
@@ -898,6 +943,8 @@ void __init at91_add_device_serial(void) {}
  */
 static int __init at91_add_standard_devices(void)
 {
+	at91_add_device_rtt();
+	at91_add_device_watchdog();
 	return 0;
 }
 
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 1d03844a607a..17f3f6a24796 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -550,6 +550,51 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
 #endif
 
 
+/* --------------------------------------------------------------------
+ *  RTT
+ * -------------------------------------------------------------------- */
+
+static struct resource rtt_resources[] = {
+	{
+		.start	= AT91_BASE_SYS + AT91_RTT,
+		.end	= AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device at91sam9261_rtt_device = {
+	.name		= "at91_rtt",
+	.id		= -1,
+	.resource	= rtt_resources,
+	.num_resources	= ARRAY_SIZE(rtt_resources),
+};
+
+static void __init at91_add_device_rtt(void)
+{
+	platform_device_register(&at91sam9261_rtt_device);
+}
+
+
+/* --------------------------------------------------------------------
+ *  Watchdog
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
+static struct platform_device at91sam9261_wdt_device = {
+	.name		= "at91_wdt",
+	.id		= -1,
+	.num_resources	= 0,
+};
+
+static void __init at91_add_device_watchdog(void)
+{
+	platform_device_register(&at91sam9261_wdt_device);
+}
+#else
+static void __init at91_add_device_watchdog(void) {}
+#endif
+
+
 /* --------------------------------------------------------------------
  *  LEDs
  * -------------------------------------------------------------------- */
@@ -786,6 +831,8 @@ void __init at91_add_device_serial(void) {}
  */
 static int __init at91_add_standard_devices(void)
 {
+	at91_add_device_rtt();
+	at91_add_device_watchdog();
 	return 0;
 }
 
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index d50a8dfb916d..b4eb21769db9 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -781,6 +781,67 @@ void __init at91_add_device_isi(void) {}
 #endif
 
 
+/* --------------------------------------------------------------------
+ *  RTT
+ * -------------------------------------------------------------------- */
+
+static struct resource rtt0_resources[] = {
+	{
+		.start	= AT91_BASE_SYS + AT91_RTT0,
+		.end	= AT91_BASE_SYS + AT91_RTT0 + SZ_16 - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device at91sam9263_rtt0_device = {
+	.name		= "at91_rtt",
+	.id		= 0,
+	.resource	= rtt0_resources,
+	.num_resources	= ARRAY_SIZE(rtt0_resources),
+};
+
+static struct resource rtt1_resources[] = {
+	{
+		.start	= AT91_BASE_SYS + AT91_RTT1,
+		.end	= AT91_BASE_SYS + AT91_RTT1 + SZ_16 - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device at91sam9263_rtt1_device = {
+	.name		= "at91_rtt",
+	.id		= 1,
+	.resource	= rtt1_resources,
+	.num_resources	= ARRAY_SIZE(rtt1_resources),
+};
+
+static void __init at91_add_device_rtt(void)
+{
+	platform_device_register(&at91sam9263_rtt0_device);
+	platform_device_register(&at91sam9263_rtt1_device);
+}
+
+
+/* --------------------------------------------------------------------
+ *  Watchdog
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
+static struct platform_device at91sam9263_wdt_device = {
+	.name		= "at91_wdt",
+	.id		= -1,
+	.num_resources	= 0,
+};
+
+static void __init at91_add_device_watchdog(void)
+{
+	platform_device_register(&at91sam9263_wdt_device);
+}
+#else
+static void __init at91_add_device_watchdog(void) {}
+#endif
+
+
 /* --------------------------------------------------------------------
  *  LEDs
  * -------------------------------------------------------------------- */
@@ -1021,6 +1082,8 @@ void __init at91_add_device_serial(void) {}
  */
 static int __init at91_add_standard_devices(void)
 {
+	at91_add_device_rtt();
+	at91_add_device_watchdog();
 	return 0;
 }
 
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index 2bd60a3dc623..19ca71d3faab 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -383,6 +383,71 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
 #endif
 
 
+/* --------------------------------------------------------------------
+ *  RTC
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE)
+static struct platform_device at91sam9rl_rtc_device = {
+	.name		= "at91_rtc",
+	.id		= -1,
+	.num_resources	= 0,
+};
+
+static void __init at91_add_device_rtc(void)
+{
+	platform_device_register(&at91sam9rl_rtc_device);
+}
+#else
+static void __init at91_add_device_rtc(void) {}
+#endif
+
+
+/* --------------------------------------------------------------------
+ *  RTT
+ * -------------------------------------------------------------------- */
+
+static struct resource rtt_resources[] = {
+	{
+		.start	= AT91_BASE_SYS + AT91_RTT,
+		.end	= AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device at91sam9rl_rtt_device = {
+	.name		= "at91_rtt",
+	.id		= -1,
+	.resource	= rtt_resources,
+	.num_resources	= ARRAY_SIZE(rtt_resources),
+};
+
+static void __init at91_add_device_rtt(void)
+{
+	platform_device_register(&at91sam9rl_rtt_device);
+}
+
+
+/* --------------------------------------------------------------------
+ *  Watchdog
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
+static struct platform_device at91sam9rl_wdt_device = {
+	.name		= "at91_wdt",
+	.id		= -1,
+	.num_resources	= 0,
+};
+
+static void __init at91_add_device_watchdog(void)
+{
+	platform_device_register(&at91sam9rl_wdt_device);
+}
+#else
+static void __init at91_add_device_watchdog(void) {}
+#endif
+
+
 /* --------------------------------------------------------------------
  *  LEDs
  * -------------------------------------------------------------------- */
@@ -659,6 +724,9 @@ void __init at91_add_device_serial(void) {}
  */
 static int __init at91_add_standard_devices(void)
 {
+	at91_add_device_rtc();
+	at91_add_device_rtt();
+	at91_add_device_watchdog();
 	return 0;
 }
 
diff --git a/include/asm-arm/arch-at91/at91_rtt.h b/include/asm-arm/arch-at91/at91_rtt.h
index bae1103fbbb2..39a32633b275 100644
--- a/include/asm-arm/arch-at91/at91_rtt.h
+++ b/include/asm-arm/arch-at91/at91_rtt.h
@@ -13,19 +13,19 @@
 #ifndef AT91_RTT_H
 #define AT91_RTT_H
 
-#define AT91_RTT_MR		(AT91_RTT + 0x00)	/* Real-time Mode Register */
+#define AT91_RTT_MR		0x00			/* Real-time Mode Register */
 #define		AT91_RTT_RTPRES		(0xffff << 0)		/* Real-time Timer Prescaler Value */
 #define		AT91_RTT_ALMIEN		(1 << 16)		/* Alarm Interrupt Enable */
 #define		AT91_RTT_RTTINCIEN	(1 << 17)		/* Real Time Timer Increment Interrupt Enable */
 #define		AT91_RTT_RTTRST		(1 << 18)		/* Real Time Timer Restart */
 
-#define AT91_RTT_AR		(AT91_RTT + 0x04)	/* Real-time Alarm Register */
+#define AT91_RTT_AR		0x04			/* Real-time Alarm Register */
 #define		AT91_RTT_ALMV		(0xffffffff)		/* Alarm Value */
 
-#define AT91_RTT_VR		(AT91_RTT + 0x08)	/* Real-time Value Register */
+#define AT91_RTT_VR		0x08			/* Real-time Value Register */
 #define		AT91_RTT_CRTV		(0xffffffff)		/* Current Real-time Value */
 
-#define AT91_RTT_SR		(AT91_RTT + 0x0c)	/* Real-time Status Register */
+#define AT91_RTT_SR		0x0c			/* Real-time Status Register */
 #define		AT91_RTT_ALMS		(1 << 0)		/* Real-time Alarm Status */
 #define		AT91_RTT_RTTINC		(1 << 1)		/* Real-time Timer Increment */
 
-- 
cgit v1.2.3-59-g8ed1b


From c6686ff9df086f9473663c2e61c1173c56788b2e Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Wed, 23 Jan 2008 09:13:53 +0100
Subject: [ARM] 4753/1: [AT91] Use DMA_BIT_MASK

Replace hard-coded DMA mask (0xffffffff) with DMA_BIT_MASK(32) as
defined in dma-mapping.h.
Set "dma_mask" field for the UART platform_devices.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/at91rm9200_devices.c  | 54 +++++++++++++++---------
 arch/arm/mach-at91/at91sam9260_devices.c | 70 +++++++++++++++++++++-----------
 arch/arm/mach-at91/at91sam9261_devices.c | 49 ++++++++++++++--------
 arch/arm/mach-at91/at91sam9263_devices.c | 59 ++++++++++++++++-----------
 arch/arm/mach-at91/at91sam9rl_devices.c  | 50 +++++++++++++++--------
 5 files changed, 181 insertions(+), 101 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index 9296833f91cc..a601c7c1670e 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -13,6 +13,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
+#include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/i2c-gpio.h>
 
@@ -29,7 +30,7 @@
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
-static u64 ohci_dmamask = 0xffffffffUL;
+static u64 ohci_dmamask = DMA_BIT_MASK(32);
 static struct at91_usbh_data usbh_data;
 
 static struct resource usbh_resources[] = {
@@ -50,7 +51,7 @@ static struct platform_device at91rm9200_usbh_device = {
 	.id		= -1,
 	.dev		= {
 				.dma_mask		= &ohci_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &usbh_data,
 	},
 	.resource	= usbh_resources,
@@ -125,7 +126,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {}
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_ARM_AT91_ETHER) || defined(CONFIG_ARM_AT91_ETHER_MODULE)
-static u64 eth_dmamask = 0xffffffffUL;
+static u64 eth_dmamask = DMA_BIT_MASK(32);
 static struct at91_eth_data eth_data;
 
 static struct resource eth_resources[] = {
@@ -146,7 +147,7 @@ static struct platform_device at91rm9200_eth_device = {
 	.id		= -1,
 	.dev		= {
 				.dma_mask		= &eth_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &eth_data,
 	},
 	.resource	= eth_resources,
@@ -285,7 +286,7 @@ void __init at91_add_device_cf(struct at91_cf_data *data) {}
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
-static u64 mmc_dmamask = 0xffffffffUL;
+static u64 mmc_dmamask = DMA_BIT_MASK(32);
 static struct at91_mmc_data mmc_data;
 
 static struct resource mmc_resources[] = {
@@ -306,7 +307,7 @@ static struct platform_device at91rm9200_mmc_device = {
 	.id		= -1,
 	.dev		= {
 				.dma_mask		= &mmc_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &mmc_data,
 	},
 	.resource	= mmc_resources,
@@ -513,7 +514,7 @@ void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
-static u64 spi_dmamask = 0xffffffffUL;
+static u64 spi_dmamask = DMA_BIT_MASK(32);
 
 static struct resource spi_resources[] = {
 	[0] = {
@@ -533,7 +534,7 @@ static struct platform_device at91rm9200_spi_device = {
 	.id		= 0,
 	.dev		= {
 				.dma_mask		= &spi_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 	},
 	.resource	= spi_resources,
 	.num_resources	= ARRAY_SIZE(spi_resources),
@@ -658,12 +659,15 @@ static struct atmel_uart_data dbgu_data = {
 	.regs		= (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 };
 
+static u64 dbgu_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91rm9200_dbgu_device = {
 	.name		= "atmel_usart",
 	.id		= 0,
 	.dev		= {
-				.platform_data	= &dbgu_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &dbgu_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &dbgu_data,
 	},
 	.resource	= dbgu_resources,
 	.num_resources	= ARRAY_SIZE(dbgu_resources),
@@ -693,12 +697,15 @@ static struct atmel_uart_data uart0_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart0_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91rm9200_uart0_device = {
 	.name		= "atmel_usart",
 	.id		= 1,
 	.dev		= {
-				.platform_data	= &uart0_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart0_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart0_data,
 	},
 	.resource	= uart0_resources,
 	.num_resources	= ARRAY_SIZE(uart0_resources),
@@ -735,12 +742,15 @@ static struct atmel_uart_data uart1_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart1_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91rm9200_uart1_device = {
 	.name		= "atmel_usart",
 	.id		= 2,
 	.dev		= {
-				.platform_data	= &uart1_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart1_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart1_data,
 	},
 	.resource	= uart1_resources,
 	.num_resources	= ARRAY_SIZE(uart1_resources),
@@ -776,12 +786,15 @@ static struct atmel_uart_data uart2_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart2_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91rm9200_uart2_device = {
 	.name		= "atmel_usart",
 	.id		= 3,
 	.dev		= {
-				.platform_data	= &uart2_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart2_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart2_data,
 	},
 	.resource	= uart2_resources,
 	.num_resources	= ARRAY_SIZE(uart2_resources),
@@ -811,12 +824,15 @@ static struct atmel_uart_data uart3_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart3_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91rm9200_uart3_device = {
 	.name		= "atmel_usart",
 	.id		= 4,
 	.dev		= {
-				.platform_data	= &uart3_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart3_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart3_data,
 	},
 	.resource	= uart3_resources,
 	.num_resources	= ARRAY_SIZE(uart3_resources),
@@ -828,7 +844,7 @@ static inline void configure_usart3_pins(void)
 	at91_set_B_periph(AT91_PIN_PA6, 0);		/* RXD3 */
 }
 
-struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
+static struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
 struct platform_device *atmel_default_console_device;	/* the serial console device */
 
 void __init at91_init_serial(struct at91_uart_config *config)
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index 1533556fb873..c34fde362ad4 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -12,6 +12,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
+#include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/i2c-gpio.h>
 
@@ -29,7 +30,7 @@
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
-static u64 ohci_dmamask = 0xffffffffUL;
+static u64 ohci_dmamask = DMA_BIT_MASK(32);
 static struct at91_usbh_data usbh_data;
 
 static struct resource usbh_resources[] = {
@@ -50,7 +51,7 @@ static struct platform_device at91_usbh_device = {
 	.id		= -1,
 	.dev		= {
 				.dma_mask		= &ohci_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &usbh_data,
 	},
 	.resource	= usbh_resources,
@@ -125,7 +126,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {}
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
-static u64 eth_dmamask = 0xffffffffUL;
+static u64 eth_dmamask = DMA_BIT_MASK(32);
 static struct at91_eth_data eth_data;
 
 static struct resource eth_resources[] = {
@@ -146,7 +147,7 @@ static struct platform_device at91sam9260_eth_device = {
 	.id		= -1,
 	.dev		= {
 				.dma_mask		= &eth_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &eth_data,
 	},
 	.resource	= eth_resources,
@@ -199,7 +200,7 @@ void __init at91_add_device_eth(struct at91_eth_data *data) {}
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
-static u64 mmc_dmamask = 0xffffffffUL;
+static u64 mmc_dmamask = DMA_BIT_MASK(32);
 static struct at91_mmc_data mmc_data;
 
 static struct resource mmc_resources[] = {
@@ -220,7 +221,7 @@ static struct platform_device at91sam9260_mmc_device = {
 	.id		= -1,
 	.dev		= {
 				.dma_mask		= &mmc_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &mmc_data,
 	},
 	.resource	= mmc_resources,
@@ -431,7 +432,7 @@ void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
-static u64 spi_dmamask = 0xffffffffUL;
+static u64 spi_dmamask = DMA_BIT_MASK(32);
 
 static struct resource spi0_resources[] = {
 	[0] = {
@@ -451,7 +452,7 @@ static struct platform_device at91sam9260_spi0_device = {
 	.id		= 0,
 	.dev		= {
 				.dma_mask		= &spi_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 	},
 	.resource	= spi0_resources,
 	.num_resources	= ARRAY_SIZE(spi0_resources),
@@ -477,7 +478,7 @@ static struct platform_device at91sam9260_spi1_device = {
 	.id		= 1,
 	.dev		= {
 				.dma_mask		= &spi_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 	},
 	.resource	= spi1_resources,
 	.num_resources	= ARRAY_SIZE(spi1_resources),
@@ -628,12 +629,15 @@ static struct atmel_uart_data dbgu_data = {
 	.regs		= (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 };
 
+static u64 dbgu_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9260_dbgu_device = {
 	.name		= "atmel_usart",
 	.id		= 0,
 	.dev		= {
-				.platform_data	= &dbgu_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &dbgu_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &dbgu_data,
 	},
 	.resource	= dbgu_resources,
 	.num_resources	= ARRAY_SIZE(dbgu_resources),
@@ -663,12 +667,15 @@ static struct atmel_uart_data uart0_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart0_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9260_uart0_device = {
 	.name		= "atmel_usart",
 	.id		= 1,
 	.dev		= {
-				.platform_data	= &uart0_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart0_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart0_data,
 	},
 	.resource	= uart0_resources,
 	.num_resources	= ARRAY_SIZE(uart0_resources),
@@ -704,12 +711,15 @@ static struct atmel_uart_data uart1_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart1_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9260_uart1_device = {
 	.name		= "atmel_usart",
 	.id		= 2,
 	.dev		= {
-				.platform_data	= &uart1_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart1_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart1_data,
 	},
 	.resource	= uart1_resources,
 	.num_resources	= ARRAY_SIZE(uart1_resources),
@@ -741,12 +751,15 @@ static struct atmel_uart_data uart2_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart2_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9260_uart2_device = {
 	.name		= "atmel_usart",
 	.id		= 3,
 	.dev		= {
-				.platform_data	= &uart2_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart2_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart2_data,
 	},
 	.resource	= uart2_resources,
 	.num_resources	= ARRAY_SIZE(uart2_resources),
@@ -776,12 +789,15 @@ static struct atmel_uart_data uart3_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart3_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9260_uart3_device = {
 	.name		= "atmel_usart",
 	.id		= 4,
 	.dev		= {
-				.platform_data	= &uart3_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart3_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart3_data,
 	},
 	.resource	= uart3_resources,
 	.num_resources	= ARRAY_SIZE(uart3_resources),
@@ -811,12 +827,15 @@ static struct atmel_uart_data uart4_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart4_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9260_uart4_device = {
 	.name		= "atmel_usart",
 	.id		= 5,
 	.dev		= {
-				.platform_data	= &uart4_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart4_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart4_data,
 	},
 	.resource	= uart4_resources,
 	.num_resources	= ARRAY_SIZE(uart4_resources),
@@ -846,12 +865,15 @@ static struct atmel_uart_data uart5_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart5_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9260_uart5_device = {
 	.name		= "atmel_usart",
 	.id		= 6,
 	.dev		= {
-				.platform_data	= &uart5_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart5_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart5_data,
 	},
 	.resource	= uart5_resources,
 	.num_resources	= ARRAY_SIZE(uart5_resources),
@@ -863,7 +885,7 @@ static inline void configure_usart5_pins(void)
 	at91_set_A_periph(AT91_PIN_PB13, 0);		/* RXD5 */
 }
 
-struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
+static struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
 struct platform_device *atmel_default_console_device;	/* the serial console device */
 
 void __init at91_init_serial(struct at91_uart_config *config)
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 17f3f6a24796..f7f02d15045d 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -13,6 +13,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
+#include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/i2c-gpio.h>
 
@@ -33,7 +34,7 @@
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
-static u64 ohci_dmamask = 0xffffffffUL;
+static u64 ohci_dmamask = DMA_BIT_MASK(32);
 static struct at91_usbh_data usbh_data;
 
 static struct resource usbh_resources[] = {
@@ -54,7 +55,7 @@ static struct platform_device at91sam9261_usbh_device = {
 	.id		= -1,
 	.dev		= {
 				.dma_mask		= &ohci_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &usbh_data,
 	},
 	.resource	= usbh_resources,
@@ -132,7 +133,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {}
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
-static u64 mmc_dmamask = 0xffffffffUL;
+static u64 mmc_dmamask = DMA_BIT_MASK(32);
 static struct at91_mmc_data mmc_data;
 
 static struct resource mmc_resources[] = {
@@ -153,7 +154,7 @@ static struct platform_device at91sam9261_mmc_device = {
 	.id		= -1,
 	.dev		= {
 				.dma_mask		= &mmc_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &mmc_data,
 	},
 	.resource	= mmc_resources,
@@ -354,7 +355,7 @@ void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
-static u64 spi_dmamask = 0xffffffffUL;
+static u64 spi_dmamask = DMA_BIT_MASK(32);
 
 static struct resource spi0_resources[] = {
 	[0] = {
@@ -374,7 +375,7 @@ static struct platform_device at91sam9261_spi0_device = {
 	.id		= 0,
 	.dev		= {
 				.dma_mask		= &spi_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 	},
 	.resource	= spi0_resources,
 	.num_resources	= ARRAY_SIZE(spi0_resources),
@@ -400,7 +401,7 @@ static struct platform_device at91sam9261_spi1_device = {
 	.id		= 1,
 	.dev		= {
 				.dma_mask		= &spi_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 	},
 	.resource	= spi1_resources,
 	.num_resources	= ARRAY_SIZE(spi1_resources),
@@ -466,7 +467,7 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
-static u64 lcdc_dmamask = 0xffffffffUL;
+static u64 lcdc_dmamask = DMA_BIT_MASK(32);
 static struct atmel_lcdfb_info lcdc_data;
 
 static struct resource lcdc_resources[] = {
@@ -494,7 +495,7 @@ static struct platform_device at91_lcdc_device = {
 	.id		= 0,
 	.dev		= {
 				.dma_mask		= &lcdc_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &lcdc_data,
 	},
 	.resource	= lcdc_resources,
@@ -641,12 +642,15 @@ static struct atmel_uart_data dbgu_data = {
 	.regs		= (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 };
 
+static u64 dbgu_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9261_dbgu_device = {
 	.name		= "atmel_usart",
 	.id		= 0,
 	.dev		= {
-				.platform_data	= &dbgu_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &dbgu_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &dbgu_data,
 	},
 	.resource	= dbgu_resources,
 	.num_resources	= ARRAY_SIZE(dbgu_resources),
@@ -676,12 +680,15 @@ static struct atmel_uart_data uart0_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart0_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9261_uart0_device = {
 	.name		= "atmel_usart",
 	.id		= 1,
 	.dev		= {
-				.platform_data	= &uart0_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart0_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart0_data,
 	},
 	.resource	= uart0_resources,
 	.num_resources	= ARRAY_SIZE(uart0_resources),
@@ -713,12 +720,15 @@ static struct atmel_uart_data uart1_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart1_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9261_uart1_device = {
 	.name		= "atmel_usart",
 	.id		= 2,
 	.dev		= {
-				.platform_data	= &uart1_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart1_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart1_data,
 	},
 	.resource	= uart1_resources,
 	.num_resources	= ARRAY_SIZE(uart1_resources),
@@ -748,12 +758,15 @@ static struct atmel_uart_data uart2_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart2_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9261_uart2_device = {
 	.name		= "atmel_usart",
 	.id		= 3,
 	.dev		= {
-				.platform_data	= &uart2_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart2_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart2_data,
 	},
 	.resource	= uart2_resources,
 	.num_resources	= ARRAY_SIZE(uart2_resources),
@@ -765,7 +778,7 @@ static inline void configure_usart2_pins(void)
 	at91_set_A_periph(AT91_PIN_PC14, 1);		/* TXD2 */
 }
 
-struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
+static struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
 struct platform_device *atmel_default_console_device;	/* the serial console device */
 
 void __init at91_init_serial(struct at91_uart_config *config)
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index b4eb21769db9..9bdcf45defcf 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -12,6 +12,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
+#include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/i2c-gpio.h>
 
@@ -32,7 +33,7 @@
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
-static u64 ohci_dmamask = 0xffffffffUL;
+static u64 ohci_dmamask = DMA_BIT_MASK(32);
 static struct at91_usbh_data usbh_data;
 
 static struct resource usbh_resources[] = {
@@ -53,7 +54,7 @@ static struct platform_device at91_usbh_device = {
 	.id		= -1,
 	.dev		= {
 				.dma_mask		= &ohci_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &usbh_data,
 	},
 	.resource	= usbh_resources,
@@ -136,7 +137,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {}
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
-static u64 eth_dmamask = 0xffffffffUL;
+static u64 eth_dmamask = DMA_BIT_MASK(32);
 static struct at91_eth_data eth_data;
 
 static struct resource eth_resources[] = {
@@ -157,7 +158,7 @@ static struct platform_device at91sam9263_eth_device = {
 	.id		= -1,
 	.dev		= {
 				.dma_mask		= &eth_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &eth_data,
 	},
 	.resource	= eth_resources,
@@ -210,7 +211,7 @@ void __init at91_add_device_eth(struct at91_eth_data *data) {}
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
-static u64 mmc_dmamask = 0xffffffffUL;
+static u64 mmc_dmamask = DMA_BIT_MASK(32);
 static struct at91_mmc_data mmc0_data, mmc1_data;
 
 static struct resource mmc0_resources[] = {
@@ -231,7 +232,7 @@ static struct platform_device at91sam9263_mmc0_device = {
 	.id		= 0,
 	.dev		= {
 				.dma_mask		= &mmc_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &mmc0_data,
 	},
 	.resource	= mmc0_resources,
@@ -256,7 +257,7 @@ static struct platform_device at91sam9263_mmc1_device = {
 	.id		= 1,
 	.dev		= {
 				.dma_mask		= &mmc_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &mmc1_data,
 	},
 	.resource	= mmc1_resources,
@@ -500,7 +501,7 @@ void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
-static u64 spi_dmamask = 0xffffffffUL;
+static u64 spi_dmamask = DMA_BIT_MASK(32);
 
 static struct resource spi0_resources[] = {
 	[0] = {
@@ -520,7 +521,7 @@ static struct platform_device at91sam9263_spi0_device = {
 	.id		= 0,
 	.dev		= {
 				.dma_mask		= &spi_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 	},
 	.resource	= spi0_resources,
 	.num_resources	= ARRAY_SIZE(spi0_resources),
@@ -546,7 +547,7 @@ static struct platform_device at91sam9263_spi1_device = {
 	.id		= 1,
 	.dev		= {
 				.dma_mask		= &spi_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 	},
 	.resource	= spi1_resources,
 	.num_resources	= ARRAY_SIZE(spi1_resources),
@@ -612,7 +613,7 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_SND_AT91_AC97) || defined(CONFIG_SND_AT91_AC97_MODULE)
-static u64 ac97_dmamask = 0xffffffffUL;
+static u64 ac97_dmamask = DMA_BIT_MASK(32);
 static struct atmel_ac97_data ac97_data;
 
 static struct resource ac97_resources[] = {
@@ -633,7 +634,7 @@ static struct platform_device at91sam9263_ac97_device = {
 	.id		= 1,
 	.dev		= {
 				.dma_mask		= &ac97_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &ac97_data,
 	},
 	.resource	= ac97_resources,
@@ -667,7 +668,7 @@ void __init at91_add_device_ac97(struct atmel_ac97_data *data) {}
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
-static u64 lcdc_dmamask = 0xffffffffUL;
+static u64 lcdc_dmamask = DMA_BIT_MASK(32);
 static struct atmel_lcdfb_info lcdc_data;
 
 static struct resource lcdc_resources[] = {
@@ -688,7 +689,7 @@ static struct platform_device at91_lcdc_device = {
 	.id		= 0,
 	.dev		= {
 				.dma_mask		= &lcdc_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &lcdc_data,
 	},
 	.resource	= lcdc_resources,
@@ -889,12 +890,15 @@ static struct atmel_uart_data dbgu_data = {
 	.regs		= (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 };
 
+static u64 dbgu_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9263_dbgu_device = {
 	.name		= "atmel_usart",
 	.id		= 0,
 	.dev		= {
-				.platform_data	= &dbgu_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &dbgu_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &dbgu_data,
 	},
 	.resource	= dbgu_resources,
 	.num_resources	= ARRAY_SIZE(dbgu_resources),
@@ -924,12 +928,15 @@ static struct atmel_uart_data uart0_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart0_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9263_uart0_device = {
 	.name		= "atmel_usart",
 	.id		= 1,
 	.dev		= {
-				.platform_data	= &uart0_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart0_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart0_data,
 	},
 	.resource	= uart0_resources,
 	.num_resources	= ARRAY_SIZE(uart0_resources),
@@ -961,12 +968,15 @@ static struct atmel_uart_data uart1_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart1_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9263_uart1_device = {
 	.name		= "atmel_usart",
 	.id		= 2,
 	.dev		= {
-				.platform_data	= &uart1_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart1_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart1_data,
 	},
 	.resource	= uart1_resources,
 	.num_resources	= ARRAY_SIZE(uart1_resources),
@@ -998,12 +1008,15 @@ static struct atmel_uart_data uart2_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart2_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9263_uart2_device = {
 	.name		= "atmel_usart",
 	.id		= 3,
 	.dev		= {
-				.platform_data	= &uart2_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart2_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart2_data,
 	},
 	.resource	= uart2_resources,
 	.num_resources	= ARRAY_SIZE(uart2_resources),
@@ -1017,7 +1030,7 @@ static inline void configure_usart2_pins(void)
 	at91_set_B_periph(AT91_PIN_PD6, 0);		/* CTS2 */
 }
 
-struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
+static struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
 struct platform_device *atmel_default_console_device;	/* the serial console device */
 
 void __init at91_init_serial(struct at91_uart_config *config)
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index 19ca71d3faab..bec8066f9ba1 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -9,6 +9,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
+#include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/i2c-gpio.h>
 
@@ -29,7 +30,7 @@
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
-static u64 mmc_dmamask = 0xffffffffUL;
+static u64 mmc_dmamask = DMA_BIT_MASK(32);
 static struct at91_mmc_data mmc_data;
 
 static struct resource mmc_resources[] = {
@@ -50,7 +51,7 @@ static struct platform_device at91sam9rl_mmc_device = {
 	.id		= -1,
 	.dev		= {
 				.dma_mask		= &mmc_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &mmc_data,
 	},
 	.resource	= mmc_resources,
@@ -247,7 +248,7 @@ void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
-static u64 spi_dmamask = 0xffffffffUL;
+static u64 spi_dmamask = DMA_BIT_MASK(32);
 
 static struct resource spi_resources[] = {
 	[0] = {
@@ -267,7 +268,7 @@ static struct platform_device at91sam9rl_spi_device = {
 	.id		= 0,
 	.dev		= {
 				.dma_mask		= &spi_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 	},
 	.resource	= spi_resources,
 	.num_resources	= ARRAY_SIZE(spi_resources),
@@ -312,7 +313,7 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
-static u64 lcdc_dmamask = 0xffffffffUL;
+static u64 lcdc_dmamask = DMA_BIT_MASK(32);
 static struct atmel_lcdfb_info lcdc_data;
 
 static struct resource lcdc_resources[] = {
@@ -340,7 +341,7 @@ static struct platform_device at91_lcdc_device = {
 	.id		= 0,
 	.dev		= {
 				.dma_mask		= &lcdc_dmamask,
-				.coherent_dma_mask	= 0xffffffff,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
 				.platform_data		= &lcdc_data,
 	},
 	.resource	= lcdc_resources,
@@ -494,12 +495,15 @@ static struct atmel_uart_data dbgu_data = {
 	.regs		= (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 };
 
+static u64 dbgu_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9rl_dbgu_device = {
 	.name		= "atmel_usart",
 	.id		= 0,
 	.dev		= {
-				.platform_data	= &dbgu_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &dbgu_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &dbgu_data,
 	},
 	.resource	= dbgu_resources,
 	.num_resources	= ARRAY_SIZE(dbgu_resources),
@@ -529,12 +533,15 @@ static struct atmel_uart_data uart0_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart0_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9rl_uart0_device = {
 	.name		= "atmel_usart",
 	.id		= 1,
 	.dev		= {
-				.platform_data	= &uart0_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart0_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart0_data,
 	},
 	.resource	= uart0_resources,
 	.num_resources	= ARRAY_SIZE(uart0_resources),
@@ -566,12 +573,15 @@ static struct atmel_uart_data uart1_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart1_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9rl_uart1_device = {
 	.name		= "atmel_usart",
 	.id		= 2,
 	.dev		= {
-				.platform_data	= &uart1_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart1_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart1_data,
 	},
 	.resource	= uart1_resources,
 	.num_resources	= ARRAY_SIZE(uart1_resources),
@@ -601,12 +611,15 @@ static struct atmel_uart_data uart2_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart2_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9rl_uart2_device = {
 	.name		= "atmel_usart",
 	.id		= 3,
 	.dev		= {
-				.platform_data	= &uart2_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart2_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart2_data,
 	},
 	.resource	= uart2_resources,
 	.num_resources	= ARRAY_SIZE(uart2_resources),
@@ -636,12 +649,15 @@ static struct atmel_uart_data uart3_data = {
 	.use_dma_rx	= 1,
 };
 
+static u64 uart3_dmamask = DMA_BIT_MASK(32);
+
 static struct platform_device at91sam9rl_uart3_device = {
 	.name		= "atmel_usart",
 	.id		= 4,
 	.dev		= {
-				.platform_data	= &uart3_data,
-				.coherent_dma_mask = 0xffffffff,
+				.dma_mask		= &uart3_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart3_data,
 	},
 	.resource	= uart3_resources,
 	.num_resources	= ARRAY_SIZE(uart3_resources),
@@ -653,7 +669,7 @@ static inline void configure_usart3_pins(void)
 	at91_set_A_periph(AT91_PIN_PB1, 0);		/* RXD3 */
 }
 
-struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
+static struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
 struct platform_device *atmel_default_console_device;	/* the serial console device */
 
 void __init at91_init_serial(struct at91_uart_config *config)
-- 
cgit v1.2.3-59-g8ed1b


From bfbc32663d4846039f88c0eccc1956587d89c042 Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Wed, 23 Jan 2008 09:18:06 +0100
Subject: [ARM] 4754/1: [AT91] SSC library support

Core support of the Atmel SSC library for all Atmel AT91 processors.

Based on David Brownell's initial patch for the AT91RM9200.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/at91rm9200_devices.c  | 173 +++++++++++++++++++++++++++++++
 arch/arm/mach-at91/at91sam9260_devices.c |  79 ++++++++++++++
 arch/arm/mach-at91/at91sam9261_devices.c | 173 +++++++++++++++++++++++++++++++
 arch/arm/mach-at91/at91sam9263_devices.c | 129 +++++++++++++++++++++++
 arch/arm/mach-at91/at91sam9rl_devices.c  | 129 +++++++++++++++++++++++
 include/asm-arm/arch-at91/board.h        |  17 +++
 6 files changed, 700 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index a601c7c1670e..cebea4168778 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -635,6 +635,179 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
 #endif
 
 
+/* --------------------------------------------------------------------
+ *  SSC -- Synchronous Serial Controller
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
+static u64 ssc0_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc0_resources[] = {
+	[0] = {
+		.start	= AT91RM9200_BASE_SSC0,
+		.end	= AT91RM9200_BASE_SSC0 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91RM9200_ID_SSC0,
+		.end	= AT91RM9200_ID_SSC0,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91rm9200_ssc0_device = {
+	.name	= "ssc",
+	.id	= 0,
+	.dev	= {
+		.dma_mask		= &ssc0_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc0_resources,
+	.num_resources	= ARRAY_SIZE(ssc0_resources),
+};
+
+static inline void configure_ssc0_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_A_periph(AT91_PIN_PB0, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_A_periph(AT91_PIN_PB1, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_A_periph(AT91_PIN_PB2, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_A_periph(AT91_PIN_PB3, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_A_periph(AT91_PIN_PB4, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_A_periph(AT91_PIN_PB5, 1);
+}
+
+static u64 ssc1_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc1_resources[] = {
+	[0] = {
+		.start	= AT91RM9200_BASE_SSC1,
+		.end	= AT91RM9200_BASE_SSC1 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91RM9200_ID_SSC1,
+		.end	= AT91RM9200_ID_SSC1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91rm9200_ssc1_device = {
+	.name	= "ssc",
+	.id	= 1,
+	.dev	= {
+		.dma_mask		= &ssc1_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc1_resources,
+	.num_resources	= ARRAY_SIZE(ssc1_resources),
+};
+
+static inline void configure_ssc1_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_A_periph(AT91_PIN_PB6, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_A_periph(AT91_PIN_PB7, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_A_periph(AT91_PIN_PB8, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_A_periph(AT91_PIN_PB9, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_A_periph(AT91_PIN_PB10, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_A_periph(AT91_PIN_PB11, 1);
+}
+
+static u64 ssc2_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc2_resources[] = {
+	[0] = {
+		.start	= AT91RM9200_BASE_SSC2,
+		.end	= AT91RM9200_BASE_SSC2 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91RM9200_ID_SSC2,
+		.end	= AT91RM9200_ID_SSC2,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91rm9200_ssc2_device = {
+	.name	= "ssc",
+	.id	= 2,
+	.dev	= {
+		.dma_mask		= &ssc2_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc2_resources,
+	.num_resources	= ARRAY_SIZE(ssc2_resources),
+};
+
+static inline void configure_ssc2_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_A_periph(AT91_PIN_PB12, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_A_periph(AT91_PIN_PB13, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_A_periph(AT91_PIN_PB14, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_A_periph(AT91_PIN_PB15, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_A_periph(AT91_PIN_PB16, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_A_periph(AT91_PIN_PB17, 1);
+}
+
+/*
+ * SSC controllers are accessed through library code, instead of any
+ * kind of all-singing/all-dancing driver.  For example one could be
+ * used by a particular I2S audio codec's driver, while another one
+ * on the same system might be used by a custom data capture driver.
+ */
+void __init at91_add_device_ssc(unsigned id, unsigned pins)
+{
+	struct platform_device *pdev;
+
+	/*
+	 * NOTE: caller is responsible for passing information matching
+	 * "pins" to whatever will be using each particular controller.
+	 */
+	switch (id) {
+	case AT91RM9200_ID_SSC0:
+		pdev = &at91rm9200_ssc0_device;
+		configure_ssc0_pins(pins);
+		at91_clock_associate("ssc0_clk", &pdev->dev, "ssc");
+		break;
+	case AT91RM9200_ID_SSC1:
+		pdev = &at91rm9200_ssc1_device;
+		configure_ssc1_pins(pins);
+		at91_clock_associate("ssc1_clk", &pdev->dev, "ssc");
+		break;
+	case AT91RM9200_ID_SSC2:
+		pdev = &at91rm9200_ssc2_device;
+		configure_ssc2_pins(pins);
+		at91_clock_associate("ssc2_clk", &pdev->dev, "ssc");
+		break;
+	default:
+		return;
+	}
+
+	platform_device_register(pdev);
+}
+
+#else
+void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
+#endif
+
+
 /* --------------------------------------------------------------------
  *  UART
  * -------------------------------------------------------------------- */
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index c34fde362ad4..2e3db137bc49 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -606,6 +606,85 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
 #endif
 
 
+/* --------------------------------------------------------------------
+ *  SSC -- Synchronous Serial Controller
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
+static u64 ssc_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc_resources[] = {
+	[0] = {
+		.start	= AT91SAM9260_BASE_SSC,
+		.end	= AT91SAM9260_BASE_SSC + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91SAM9260_ID_SSC,
+		.end	= AT91SAM9260_ID_SSC,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91sam9260_ssc_device = {
+	.name	= "ssc",
+	.id	= 0,
+	.dev	= {
+		.dma_mask		= &ssc_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc_resources,
+	.num_resources	= ARRAY_SIZE(ssc_resources),
+};
+
+static inline void configure_ssc_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_A_periph(AT91_PIN_PB17, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_A_periph(AT91_PIN_PB16, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_A_periph(AT91_PIN_PB18, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_A_periph(AT91_PIN_PB19, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_A_periph(AT91_PIN_PB20, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_A_periph(AT91_PIN_PB21, 1);
+}
+
+/*
+ * SSC controllers are accessed through library code, instead of any
+ * kind of all-singing/all-dancing driver.  For example one could be
+ * used by a particular I2S audio codec's driver, while another one
+ * on the same system might be used by a custom data capture driver.
+ */
+void __init at91_add_device_ssc(unsigned id, unsigned pins)
+{
+	struct platform_device *pdev;
+
+	/*
+	 * NOTE: caller is responsible for passing information matching
+	 * "pins" to whatever will be using each particular controller.
+	 */
+	switch (id) {
+	case AT91SAM9260_ID_SSC:
+		pdev = &at91sam9260_ssc_device;
+		configure_ssc_pins(pins);
+		at91_clock_associate("ssc_clk", &pdev->dev, "pclk");
+		break;
+	default:
+		return;
+	}
+
+	platform_device_register(pdev);
+}
+
+#else
+void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
+#endif
+
+
 /* --------------------------------------------------------------------
  *  UART
  * -------------------------------------------------------------------- */
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index f7f02d15045d..266ccf01be53 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -618,6 +618,179 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
 #endif
 
 
+/* --------------------------------------------------------------------
+ *  SSC -- Synchronous Serial Controller
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
+static u64 ssc0_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc0_resources[] = {
+	[0] = {
+		.start	= AT91SAM9261_BASE_SSC0,
+		.end	= AT91SAM9261_BASE_SSC0 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91SAM9261_ID_SSC0,
+		.end	= AT91SAM9261_ID_SSC0,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91sam9261_ssc0_device = {
+	.name	= "ssc",
+	.id	= 0,
+	.dev	= {
+		.dma_mask		= &ssc0_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc0_resources,
+	.num_resources	= ARRAY_SIZE(ssc0_resources),
+};
+
+static inline void configure_ssc0_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_A_periph(AT91_PIN_PB21, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_A_periph(AT91_PIN_PB22, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_A_periph(AT91_PIN_PB23, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_A_periph(AT91_PIN_PB24, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_A_periph(AT91_PIN_PB25, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_A_periph(AT91_PIN_PB26, 1);
+}
+
+static u64 ssc1_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc1_resources[] = {
+	[0] = {
+		.start	= AT91SAM9261_BASE_SSC1,
+		.end	= AT91SAM9261_BASE_SSC1 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91SAM9261_ID_SSC1,
+		.end	= AT91SAM9261_ID_SSC1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91sam9261_ssc1_device = {
+	.name	= "ssc",
+	.id	= 1,
+	.dev	= {
+		.dma_mask		= &ssc1_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc1_resources,
+	.num_resources	= ARRAY_SIZE(ssc1_resources),
+};
+
+static inline void configure_ssc1_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_B_periph(AT91_PIN_PA17, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_B_periph(AT91_PIN_PA18, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_B_periph(AT91_PIN_PA19, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_B_periph(AT91_PIN_PA20, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_B_periph(AT91_PIN_PA21, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_B_periph(AT91_PIN_PA22, 1);
+}
+
+static u64 ssc2_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc2_resources[] = {
+	[0] = {
+		.start	= AT91SAM9261_BASE_SSC2,
+		.end	= AT91SAM9261_BASE_SSC2 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91SAM9261_ID_SSC2,
+		.end	= AT91SAM9261_ID_SSC2,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91sam9261_ssc2_device = {
+	.name	= "ssc",
+	.id	= 2,
+	.dev	= {
+		.dma_mask		= &ssc2_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc2_resources,
+	.num_resources	= ARRAY_SIZE(ssc2_resources),
+};
+
+static inline void configure_ssc2_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_B_periph(AT91_PIN_PC25, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_B_periph(AT91_PIN_PC26, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_B_periph(AT91_PIN_PC27, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_B_periph(AT91_PIN_PC28, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_B_periph(AT91_PIN_PC29, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_B_periph(AT91_PIN_PC30, 1);
+}
+
+/*
+ * SSC controllers are accessed through library code, instead of any
+ * kind of all-singing/all-dancing driver.  For example one could be
+ * used by a particular I2S audio codec's driver, while another one
+ * on the same system might be used by a custom data capture driver.
+ */
+void __init at91_add_device_ssc(unsigned id, unsigned pins)
+{
+	struct platform_device *pdev;
+
+	/*
+	 * NOTE: caller is responsible for passing information matching
+	 * "pins" to whatever will be using each particular controller.
+	 */
+	switch (id) {
+	case AT91SAM9261_ID_SSC0:
+		pdev = &at91sam9261_ssc0_device;
+		configure_ssc0_pins(pins);
+		at91_clock_associate("ssc0_clk", &pdev->dev, "pclk");
+		break;
+	case AT91SAM9261_ID_SSC1:
+		pdev = &at91sam9261_ssc1_device;
+		configure_ssc1_pins(pins);
+		at91_clock_associate("ssc1_clk", &pdev->dev, "pclk");
+		break;
+	case AT91SAM9261_ID_SSC2:
+		pdev = &at91sam9261_ssc2_device;
+		configure_ssc2_pins(pins);
+		at91_clock_associate("ssc2_clk", &pdev->dev, "pclk");
+		break;
+	default:
+		return;
+	}
+
+	platform_device_register(pdev);
+}
+
+#else
+void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
+#endif
+
+
 /* --------------------------------------------------------------------
  *  UART
  * -------------------------------------------------------------------- */
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index 9bdcf45defcf..f83ef62f2385 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -865,6 +865,135 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
 #endif
 
 
+/* --------------------------------------------------------------------
+ *  SSC -- Synchronous Serial Controller
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
+static u64 ssc0_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc0_resources[] = {
+	[0] = {
+		.start	= AT91SAM9263_BASE_SSC0,
+		.end	= AT91SAM9263_BASE_SSC0 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91SAM9263_ID_SSC0,
+		.end	= AT91SAM9263_ID_SSC0,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91sam9263_ssc0_device = {
+	.name	= "ssc",
+	.id	= 0,
+	.dev	= {
+		.dma_mask		= &ssc0_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc0_resources,
+	.num_resources	= ARRAY_SIZE(ssc0_resources),
+};
+
+static inline void configure_ssc0_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_B_periph(AT91_PIN_PB0, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_B_periph(AT91_PIN_PB1, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_B_periph(AT91_PIN_PB2, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_B_periph(AT91_PIN_PB3, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_B_periph(AT91_PIN_PB4, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_B_periph(AT91_PIN_PB5, 1);
+}
+
+static u64 ssc1_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc1_resources[] = {
+	[0] = {
+		.start	= AT91SAM9263_BASE_SSC1,
+		.end	= AT91SAM9263_BASE_SSC1 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91SAM9263_ID_SSC1,
+		.end	= AT91SAM9263_ID_SSC1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91sam9263_ssc1_device = {
+	.name	= "ssc",
+	.id	= 1,
+	.dev	= {
+		.dma_mask		= &ssc1_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc1_resources,
+	.num_resources	= ARRAY_SIZE(ssc1_resources),
+};
+
+static inline void configure_ssc1_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_A_periph(AT91_PIN_PB6, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_A_periph(AT91_PIN_PB7, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_A_periph(AT91_PIN_PB8, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_A_periph(AT91_PIN_PB9, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_A_periph(AT91_PIN_PB10, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_A_periph(AT91_PIN_PB11, 1);
+}
+
+/*
+ * Return the device node so that board init code can use it as the
+ * parent for the device node reflecting how it's used on this board.
+ *
+ * SSC controllers are accessed through library code, instead of any
+ * kind of all-singing/all-dancing driver.  For example one could be
+ * used by a particular I2S audio codec's driver, while another one
+ * on the same system might be used by a custom data capture driver.
+ */
+void __init at91_add_device_ssc(unsigned id, unsigned pins)
+{
+	struct platform_device *pdev;
+
+	/*
+	 * NOTE: caller is responsible for passing information matching
+	 * "pins" to whatever will be using each particular controller.
+	 */
+	switch (id) {
+	case AT91SAM9263_ID_SSC0:
+		pdev = &at91sam9263_ssc0_device;
+		configure_ssc0_pins(pins);
+		at91_clock_associate("ssc0_clk", &pdev->dev, "pclk");
+		break;
+	case AT91SAM9263_ID_SSC1:
+		pdev = &at91sam9263_ssc1_device;
+		configure_ssc1_pins(pins);
+		at91_clock_associate("ssc1_clk", &pdev->dev, "pclk");
+		break;
+	default:
+		return;
+	}
+
+	platform_device_register(pdev);
+}
+
+#else
+void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
+#endif
+
+
 /* --------------------------------------------------------------------
  *  UART
  * -------------------------------------------------------------------- */
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index bec8066f9ba1..e886cdfe919d 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -471,6 +471,135 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
 #endif
 
 
+/* --------------------------------------------------------------------
+ *  SSC -- Synchronous Serial Controller
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
+static u64 ssc0_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc0_resources[] = {
+	[0] = {
+		.start	= AT91SAM9RL_BASE_SSC0,
+		.end	= AT91SAM9RL_BASE_SSC0 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91SAM9RL_ID_SSC0,
+		.end	= AT91SAM9RL_ID_SSC0,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91sam9rl_ssc0_device = {
+	.name	= "ssc",
+	.id	= 0,
+	.dev	= {
+		.dma_mask		= &ssc0_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc0_resources,
+	.num_resources	= ARRAY_SIZE(ssc0_resources),
+};
+
+static inline void configure_ssc0_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_A_periph(AT91_PIN_PC0, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_A_periph(AT91_PIN_PC1, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_A_periph(AT91_PIN_PA15, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_A_periph(AT91_PIN_PA16, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_B_periph(AT91_PIN_PA10, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_B_periph(AT91_PIN_PA22, 1);
+}
+
+static u64 ssc1_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc1_resources[] = {
+	[0] = {
+		.start	= AT91SAM9RL_BASE_SSC1,
+		.end	= AT91SAM9RL_BASE_SSC1 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91SAM9RL_ID_SSC1,
+		.end	= AT91SAM9RL_ID_SSC1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91sam9rl_ssc1_device = {
+	.name	= "ssc",
+	.id	= 1,
+	.dev	= {
+		.dma_mask		= &ssc1_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc1_resources,
+	.num_resources	= ARRAY_SIZE(ssc1_resources),
+};
+
+static inline void configure_ssc1_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_B_periph(AT91_PIN_PA29, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_B_periph(AT91_PIN_PA30, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_B_periph(AT91_PIN_PA13, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_B_periph(AT91_PIN_PA14, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_B_periph(AT91_PIN_PA9, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_B_periph(AT91_PIN_PA8, 1);
+}
+
+/*
+ * Return the device node so that board init code can use it as the
+ * parent for the device node reflecting how it's used on this board.
+ *
+ * SSC controllers are accessed through library code, instead of any
+ * kind of all-singing/all-dancing driver.  For example one could be
+ * used by a particular I2S audio codec's driver, while another one
+ * on the same system might be used by a custom data capture driver.
+ */
+void __init at91_add_device_ssc(unsigned id, unsigned pins)
+{
+	struct platform_device *pdev;
+
+	/*
+	 * NOTE: caller is responsible for passing information matching
+	 * "pins" to whatever will be using each particular controller.
+	 */
+	switch (id) {
+	case AT91SAM9RL_ID_SSC0:
+		pdev = &at91sam9rl_ssc0_device;
+		configure_ssc0_pins(pins);
+		at91_clock_associate("ssc0_clk", &pdev->dev, "pclk");
+		break;
+	case AT91SAM9RL_ID_SSC1:
+		pdev = &at91sam9rl_ssc1_device;
+		configure_ssc1_pins(pins);
+		at91_clock_associate("ssc1_clk", &pdev->dev, "pclk");
+		break;
+	default:
+		return;
+	}
+
+	platform_device_register(pdev);
+}
+
+#else
+void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
+#endif
+
+
 /* --------------------------------------------------------------------
  *  UART
  * -------------------------------------------------------------------- */
diff --git a/include/asm-arm/arch-at91/board.h b/include/asm-arm/arch-at91/board.h
index 762148cc48c1..7fefe018833c 100644
--- a/include/asm-arm/arch-at91/board.h
+++ b/include/asm-arm/arch-at91/board.h
@@ -116,6 +116,23 @@ struct atmel_uart_data {
 };
 extern void __init at91_add_device_serial(void);
 
+/*
+ * SSC -- accessed through ssc_request(id).  Drivers don't bind to SSC
+ * platform devices.  Their SSC ID is part of their configuration data,
+ * along with information about which SSC signals they should use.
+ */
+#define ATMEL_SSC_TK	0x01
+#define ATMEL_SSC_TF	0x02
+#define ATMEL_SSC_TD	0x04
+#define ATMEL_SSC_TX	(ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD)
+
+#define ATMEL_SSC_RK	0x10
+#define ATMEL_SSC_RF	0x20
+#define ATMEL_SSC_RD	0x40
+#define ATMEL_SSC_RX	(ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD)
+
+extern void __init at91_add_device_ssc(unsigned id, unsigned pins);
+
  /* LCD Controller */
 struct atmel_lcdfb_info;
 extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data);
-- 
cgit v1.2.3-59-g8ed1b


From 228235584f0dc1ab7f33f53d6cea8ee8a4d7f0da Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Wed, 23 Jan 2008 09:21:02 +0100
Subject: [ARM] 4755/1: [AT91] NAND update

Map the complete memory region (SZ_256M) as is done on the other AT91
processors.

The SMC_SMARTMEDIA bit should be set in the EBI controller to enable
the hardware NAND logic.
  (Patch from Sascha Erlacher)

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/at91rm9200_devices.c  | 2 +-
 arch/arm/mach-at91/at91sam9260_devices.c | 4 ++--
 arch/arm/mach-at91/at91sam9261_devices.c | 2 +-
 arch/arm/mach-at91/at91sam9263_devices.c | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index cebea4168778..a2647265c214 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -376,7 +376,7 @@ static struct at91_nand_data nand_data;
 static struct resource nand_resources[] = {
 	{
 		.start	= NAND_BASE,
-		.end	= NAND_BASE + SZ_8M - 1,
+		.end	= NAND_BASE + SZ_256M - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index 2e3db137bc49..8acd62b75cb0 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -290,7 +290,7 @@ static struct at91_nand_data nand_data;
 static struct resource nand_resources[] = {
 	{
 		.start	= NAND_BASE,
-		.end	= NAND_BASE + SZ_8M - 1,
+		.end	= NAND_BASE + SZ_256M - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -313,7 +313,7 @@ void __init at91_add_device_nand(struct at91_nand_data *data)
 		return;
 
 	csa = at91_sys_read(AT91_MATRIX_EBICSA);
-	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC);
+	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 
 	/* set the bus interface characteristics */
 	at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 266ccf01be53..ba84ba6f18fb 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -233,7 +233,7 @@ void __init at91_add_device_nand(struct at91_nand_data *data)
 		return;
 
 	csa = at91_sys_read(AT91_MATRIX_EBICSA);
-	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC);
+	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 
 	/* set the bus interface characteristics */
 	at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index f83ef62f2385..c025f5c5ffaa 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -383,7 +383,7 @@ void __init at91_add_device_nand(struct at91_nand_data *data)
 		return;
 
 	csa = at91_sys_read(AT91_MATRIX_EBI0CSA);
-	at91_sys_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC);
+	at91_sys_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA);
 
 	/* set the bus interface characteristics */
 	at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
-- 
cgit v1.2.3-59-g8ed1b


From b7b272a8826a2332f689853792eb8c42477fec85 Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Wed, 23 Jan 2008 09:23:09 +0100
Subject: [ARM] 4756/1: [AT91] Makefile cleanup

Cleanup the main AT91 makefile.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/Makefile | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index a21f08c64ea6..a8a009c2cf7d 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -8,7 +8,6 @@ obj-n		:=
 obj-		:=
 
 obj-$(CONFIG_AT91_PMC_UNIT)	+= clock.o
-obj-$(CONFIG_PM)		+= pm.o
 
 # CPU-specific support
 obj-$(CONFIG_ARCH_AT91RM9200)	+= at91rm9200.o at91rm9200_time.o at91rm9200_devices.o
@@ -29,7 +28,6 @@ obj-$(CONFIG_MACH_KB9200)	+= board-kb9202.o
 obj-$(CONFIG_MACH_ATEB9200)	+= board-eb9200.o
 obj-$(CONFIG_MACH_KAFA)		+= board-kafa.o
 obj-$(CONFIG_MACH_PICOTUX2XX)	+= board-picotux200.o
-obj-$(CONFIG_MACH_AT91EB01)	+= board-eb01.o
 
 # AT91SAM9260 board-specific support
 obj-$(CONFIG_MACH_AT91SAM9260EK) += board-sam9260ek.o
@@ -43,19 +41,14 @@ obj-$(CONFIG_MACH_AT91SAM9263EK) += board-sam9263ek.o
 # AT91SAM9RL board-specific support
 obj-$(CONFIG_MACH_AT91SAM9RLEK)	+= board-sam9rlek.o
 
-# LEDs support
-led-$(CONFIG_ARCH_AT91RM9200DK)	+= leds.o
-led-$(CONFIG_MACH_AT91RM9200EK)	+= leds.o
-led-$(CONFIG_MACH_AT91SAM9261EK)+= leds.o
-led-$(CONFIG_MACH_CSB337)	+= leds.o
-led-$(CONFIG_MACH_CSB637)	+= leds.o
-led-$(CONFIG_MACH_KB9200)	+= leds.o
-led-$(CONFIG_MACH_KAFA)		+= leds.o
-obj-$(CONFIG_LEDS) += $(led-y)
+# AT91X40 board-specific support
+obj-$(CONFIG_MACH_AT91EB01)	+= board-eb01.o
 
-# VGA support
-#obj-$(CONFIG_FB_S1D13XXX)	+= ics1523.o
+# Drivers
+obj-$(CONFIG_LEDS)		+= leds.o
 
+# Power Management
+obj-$(CONFIG_PM)		+= pm.o
 
 ifeq ($(CONFIG_PM_DEBUG),y)
 CFLAGS_pm.o += -DDEBUG
-- 
cgit v1.2.3-59-g8ed1b


From c8f385a631ef1f49d67a3798ca40dec36ccdf07d Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Wed, 23 Jan 2008 09:25:15 +0100
Subject: [ARM] 4757/1: [AT91] UART initialization

Modify the UART initialization to allow the board-initialization code
to specify which pins are connected, and which pins should therefore
be initialized.

The current at91_init_serial() will continue to work as-is, but is
marked as "deprecated" and will be removed once the board-specific
files has been updated to use the new interface.

As in the AVR32 code, we assume that the TX and RX pins will always be
initialized.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/at91rm9200_devices.c  | 114 ++++++++++++++++++++++++------
 arch/arm/mach-at91/at91sam9260_devices.c | 115 ++++++++++++++++++++++++++-----
 arch/arm/mach-at91/at91sam9261_devices.c |  77 ++++++++++++++++++---
 arch/arm/mach-at91/at91sam9263_devices.c |  79 +++++++++++++++++----
 arch/arm/mach-at91/at91sam9rl_devices.c  |  99 ++++++++++++++++++++++----
 include/asm-arm/arch-at91/board.h        |  12 +++-
 6 files changed, 420 insertions(+), 76 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index a2647265c214..23966229ea9a 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -884,17 +884,21 @@ static struct platform_device at91rm9200_uart0_device = {
 	.num_resources	= ARRAY_SIZE(uart0_resources),
 };
 
-static inline void configure_usart0_pins(void)
+static inline void configure_usart0_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PA17, 1);		/* TXD0 */
 	at91_set_A_periph(AT91_PIN_PA18, 0);		/* RXD0 */
-	at91_set_A_periph(AT91_PIN_PA20, 0);		/* CTS0 */
 
-	/*
-	 * AT91RM9200 Errata #39 - RTS0 is not internally connected to PA21.
-	 *  We need to drive the pin manually.  Default is off (RTS is active low).
-	 */
-	at91_set_gpio_output(AT91_PIN_PA21, 1);
+	if (pins & ATMEL_UART_CTS)
+		at91_set_A_periph(AT91_PIN_PA20, 0);	/* CTS0 */
+
+	if (pins & ATMEL_UART_RTS) {
+		/*
+		 * AT91RM9200 Errata #39 - RTS0 is not internally connected to PA21.
+		 *  We need to drive the pin manually.  Default is off (RTS is active low).
+		 */
+		at91_set_gpio_output(AT91_PIN_PA21, 1);
+	}
 }
 
 static struct resource uart1_resources[] = {
@@ -929,16 +933,23 @@ static struct platform_device at91rm9200_uart1_device = {
 	.num_resources	= ARRAY_SIZE(uart1_resources),
 };
 
-static inline void configure_usart1_pins(void)
+static inline void configure_usart1_pins(unsigned pins)
 {
-	at91_set_A_periph(AT91_PIN_PB18, 0);		/* RI1 */
-	at91_set_A_periph(AT91_PIN_PB19, 0);		/* DTR1 */
 	at91_set_A_periph(AT91_PIN_PB20, 1);		/* TXD1 */
 	at91_set_A_periph(AT91_PIN_PB21, 0);		/* RXD1 */
-	at91_set_A_periph(AT91_PIN_PB23, 0);		/* DCD1 */
-	at91_set_A_periph(AT91_PIN_PB24, 0);		/* CTS1 */
-	at91_set_A_periph(AT91_PIN_PB25, 0);		/* DSR1 */
-	at91_set_A_periph(AT91_PIN_PB26, 0);		/* RTS1 */
+
+	if (pins & ATMEL_UART_RI)
+		at91_set_A_periph(AT91_PIN_PB18, 0);	/* RI1 */
+	if (pins & ATMEL_UART_DTR)
+		at91_set_A_periph(AT91_PIN_PB19, 0);	/* DTR1 */
+	if (pins & ATMEL_UART_DCD)
+		at91_set_A_periph(AT91_PIN_PB23, 0);	/* DCD1 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_A_periph(AT91_PIN_PB24, 0);	/* CTS1 */
+	if (pins & ATMEL_UART_DSR)
+		at91_set_A_periph(AT91_PIN_PB25, 0);	/* DSR1 */
+	if (pins & ATMEL_UART_RTS)
+		at91_set_A_periph(AT91_PIN_PB26, 0);	/* RTS1 */
 }
 
 static struct resource uart2_resources[] = {
@@ -973,10 +984,15 @@ static struct platform_device at91rm9200_uart2_device = {
 	.num_resources	= ARRAY_SIZE(uart2_resources),
 };
 
-static inline void configure_usart2_pins(void)
+static inline void configure_usart2_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PA22, 0);		/* RXD2 */
 	at91_set_A_periph(AT91_PIN_PA23, 1);		/* TXD2 */
+
+	if (pins & ATMEL_UART_CTS)
+		at91_set_B_periph(AT91_PIN_PA30, 0);	/* CTS2 */
+	if (pins & ATMEL_UART_RTS)
+		at91_set_B_periph(AT91_PIN_PA31, 0);	/* RTS2 */
 }
 
 static struct resource uart3_resources[] = {
@@ -1011,16 +1027,21 @@ static struct platform_device at91rm9200_uart3_device = {
 	.num_resources	= ARRAY_SIZE(uart3_resources),
 };
 
-static inline void configure_usart3_pins(void)
+static inline void configure_usart3_pins(unsigned pins)
 {
 	at91_set_B_periph(AT91_PIN_PA5, 1);		/* TXD3 */
 	at91_set_B_periph(AT91_PIN_PA6, 0);		/* RXD3 */
+
+	if (pins & ATMEL_UART_CTS)
+		at91_set_B_periph(AT91_PIN_PB1, 0);	/* CTS3 */
+	if (pins & ATMEL_UART_RTS)
+		at91_set_B_periph(AT91_PIN_PB0, 0);	/* RTS3 */
 }
 
 static struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
 struct platform_device *atmel_default_console_device;	/* the serial console device */
 
-void __init at91_init_serial(struct at91_uart_config *config)
+void __init __deprecated at91_init_serial(struct at91_uart_config *config)
 {
 	int i;
 
@@ -1028,22 +1049,22 @@ void __init at91_init_serial(struct at91_uart_config *config)
 	for (i = 0; i < config->nr_tty; i++) {
 		switch (config->tty_map[i]) {
 			case 0:
-				configure_usart0_pins();
+				configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS);
 				at91_uarts[i] = &at91rm9200_uart0_device;
 				at91_clock_associate("usart0_clk", &at91rm9200_uart0_device.dev, "usart");
 				break;
 			case 1:
-				configure_usart1_pins();
+				configure_usart1_pins(ATMEL_UART_CTS | ATMEL_UART_RTS | ATMEL_UART_DSR | ATMEL_UART_DTR | ATMEL_UART_DCD | ATMEL_UART_RI);
 				at91_uarts[i] = &at91rm9200_uart1_device;
 				at91_clock_associate("usart1_clk", &at91rm9200_uart1_device.dev, "usart");
 				break;
 			case 2:
-				configure_usart2_pins();
+				configure_usart2_pins(0);
 				at91_uarts[i] = &at91rm9200_uart2_device;
 				at91_clock_associate("usart2_clk", &at91rm9200_uart2_device.dev, "usart");
 				break;
 			case 3:
-				configure_usart3_pins();
+				configure_usart3_pins(0);
 				at91_uarts[i] = &at91rm9200_uart3_device;
 				at91_clock_associate("usart3_clk", &at91rm9200_uart3_device.dev, "usart");
 				break;
@@ -1065,6 +1086,53 @@ void __init at91_init_serial(struct at91_uart_config *config)
 		printk(KERN_INFO "AT91: No default serial console defined.\n");
 }
 
+void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
+{
+	struct platform_device *pdev;
+
+	switch (id) {
+		case 0:		/* DBGU */
+			pdev = &at91rm9200_dbgu_device;
+			configure_dbgu_pins();
+			at91_clock_associate("mck", &pdev->dev, "usart");
+			break;
+		case AT91RM9200_ID_US0:
+			pdev = &at91rm9200_uart0_device;
+			configure_usart0_pins(pins);
+			at91_clock_associate("usart0_clk", &pdev->dev, "usart");
+			break;
+		case AT91RM9200_ID_US1:
+			pdev = &at91rm9200_uart1_device;
+			configure_usart1_pins(pins);
+			at91_clock_associate("usart1_clk", &pdev->dev, "usart");
+			break;
+		case AT91RM9200_ID_US2:
+			pdev = &at91rm9200_uart2_device;
+			configure_usart2_pins(pins);
+			at91_clock_associate("usart2_clk", &pdev->dev, "usart");
+			break;
+		case AT91RM9200_ID_US3:
+			pdev = &at91rm9200_uart3_device;
+			configure_usart3_pins(pins);
+			at91_clock_associate("usart3_clk", &pdev->dev, "usart");
+			break;
+		default:
+			return;
+	}
+	pdev->id = portnr;		/* update to mapped ID */
+
+	if (portnr < ATMEL_MAX_UART)
+		at91_uarts[portnr] = pdev;
+}
+
+void __init at91_set_serial_console(unsigned portnr)
+{
+	if (portnr < ATMEL_MAX_UART)
+		atmel_default_console_device = at91_uarts[portnr];
+	if (!atmel_default_console_device)
+		printk(KERN_INFO "AT91: No default serial console defined.\n");
+}
+
 void __init at91_add_device_serial(void)
 {
 	int i;
@@ -1075,7 +1143,9 @@ void __init at91_add_device_serial(void)
 	}
 }
 #else
-void __init at91_init_serial(struct at91_uart_config *config) {}
+void __init __deprecated at91_init_serial(struct at91_uart_config *config) {}
+void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
+void __init at91_set_serial_console(unsigned portnr) {}
 void __init at91_add_device_serial(void) {}
 #endif
 
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index 8acd62b75cb0..5dd06bdccb00 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -760,16 +760,23 @@ static struct platform_device at91sam9260_uart0_device = {
 	.num_resources	= ARRAY_SIZE(uart0_resources),
 };
 
-static inline void configure_usart0_pins(void)
+static inline void configure_usart0_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PB4, 1);		/* TXD0 */
 	at91_set_A_periph(AT91_PIN_PB5, 0);		/* RXD0 */
-	at91_set_A_periph(AT91_PIN_PB26, 0);		/* RTS0 */
-	at91_set_A_periph(AT91_PIN_PB27, 0);		/* CTS0 */
-	at91_set_A_periph(AT91_PIN_PB24, 0);		/* DTR0 */
-	at91_set_A_periph(AT91_PIN_PB22, 0);		/* DSR0 */
-	at91_set_A_periph(AT91_PIN_PB23, 0);		/* DCD0 */
-	at91_set_A_periph(AT91_PIN_PB25, 0);		/* RI0 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_A_periph(AT91_PIN_PB26, 0);	/* RTS0 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_A_periph(AT91_PIN_PB27, 0);	/* CTS0 */
+	if (pins & ATMEL_UART_DTR)
+		at91_set_A_periph(AT91_PIN_PB24, 0);	/* DTR0 */
+	if (pins & ATMEL_UART_DSR)
+		at91_set_A_periph(AT91_PIN_PB22, 0);	/* DSR0 */
+	if (pins & ATMEL_UART_DCD)
+		at91_set_A_periph(AT91_PIN_PB23, 0);	/* DCD0 */
+	if (pins & ATMEL_UART_RI)
+		at91_set_A_periph(AT91_PIN_PB25, 0);	/* RI0 */
 }
 
 static struct resource uart1_resources[] = {
@@ -804,12 +811,15 @@ static struct platform_device at91sam9260_uart1_device = {
 	.num_resources	= ARRAY_SIZE(uart1_resources),
 };
 
-static inline void configure_usart1_pins(void)
+static inline void configure_usart1_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PB6, 1);		/* TXD1 */
 	at91_set_A_periph(AT91_PIN_PB7, 0);		/* RXD1 */
-	at91_set_A_periph(AT91_PIN_PB28, 0);		/* RTS1 */
-	at91_set_A_periph(AT91_PIN_PB29, 0);		/* CTS1 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_A_periph(AT91_PIN_PB28, 0);	/* RTS1 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_A_periph(AT91_PIN_PB29, 0);	/* CTS1 */
 }
 
 static struct resource uart2_resources[] = {
@@ -844,10 +854,15 @@ static struct platform_device at91sam9260_uart2_device = {
 	.num_resources	= ARRAY_SIZE(uart2_resources),
 };
 
-static inline void configure_usart2_pins(void)
+static inline void configure_usart2_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PB8, 1);		/* TXD2 */
 	at91_set_A_periph(AT91_PIN_PB9, 0);		/* RXD2 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_A_periph(AT91_PIN_PA4, 0);	/* RTS2 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_A_periph(AT91_PIN_PA5, 0);	/* CTS2 */
 }
 
 static struct resource uart3_resources[] = {
@@ -882,10 +897,15 @@ static struct platform_device at91sam9260_uart3_device = {
 	.num_resources	= ARRAY_SIZE(uart3_resources),
 };
 
-static inline void configure_usart3_pins(void)
+static inline void configure_usart3_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PB10, 1);		/* TXD3 */
 	at91_set_A_periph(AT91_PIN_PB11, 0);		/* RXD3 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_B_periph(AT91_PIN_PC8, 0);	/* RTS3 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_B_periph(AT91_PIN_PC10, 0);	/* CTS3 */
 }
 
 static struct resource uart4_resources[] = {
@@ -967,7 +987,7 @@ static inline void configure_usart5_pins(void)
 static struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
 struct platform_device *atmel_default_console_device;	/* the serial console device */
 
-void __init at91_init_serial(struct at91_uart_config *config)
+void __init __deprecated at91_init_serial(struct at91_uart_config *config)
 {
 	int i;
 
@@ -975,22 +995,22 @@ void __init at91_init_serial(struct at91_uart_config *config)
 	for (i = 0; i < config->nr_tty; i++) {
 		switch (config->tty_map[i]) {
 			case 0:
-				configure_usart0_pins();
+				configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS | ATMEL_UART_DSR | ATMEL_UART_DTR | ATMEL_UART_DCD | ATMEL_UART_RI);
 				at91_uarts[i] = &at91sam9260_uart0_device;
 				at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart");
 				break;
 			case 1:
-				configure_usart1_pins();
+				configure_usart1_pins(ATMEL_UART_CTS | ATMEL_UART_RTS);
 				at91_uarts[i] = &at91sam9260_uart1_device;
 				at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart");
 				break;
 			case 2:
-				configure_usart2_pins();
+				configure_usart2_pins(0);
 				at91_uarts[i] = &at91sam9260_uart2_device;
 				at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart");
 				break;
 			case 3:
-				configure_usart3_pins();
+				configure_usart3_pins(0);
 				at91_uarts[i] = &at91sam9260_uart3_device;
 				at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart");
 				break;
@@ -1022,6 +1042,63 @@ void __init at91_init_serial(struct at91_uart_config *config)
 		printk(KERN_INFO "AT91: No default serial console defined.\n");
 }
 
+void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
+{
+	struct platform_device *pdev;
+
+	switch (id) {
+		case 0:		/* DBGU */
+			pdev = &at91sam9260_dbgu_device;
+			configure_dbgu_pins();
+			at91_clock_associate("mck", &pdev->dev, "usart");
+			break;
+		case AT91SAM9260_ID_US0:
+			pdev = &at91sam9260_uart0_device;
+			configure_usart0_pins(pins);
+			at91_clock_associate("usart0_clk", &pdev->dev, "usart");
+			break;
+		case AT91SAM9260_ID_US1:
+			pdev = &at91sam9260_uart1_device;
+			configure_usart1_pins(pins);
+			at91_clock_associate("usart1_clk", &pdev->dev, "usart");
+			break;
+		case AT91SAM9260_ID_US2:
+			pdev = &at91sam9260_uart2_device;
+			configure_usart2_pins(pins);
+			at91_clock_associate("usart2_clk", &pdev->dev, "usart");
+			break;
+		case AT91SAM9260_ID_US3:
+			pdev = &at91sam9260_uart3_device;
+			configure_usart3_pins(pins);
+			at91_clock_associate("usart3_clk", &pdev->dev, "usart");
+			break;
+		case AT91SAM9260_ID_US4:
+			pdev = &at91sam9260_uart4_device;
+			configure_usart4_pins();
+			at91_clock_associate("usart4_clk", &pdev->dev, "usart");
+			break;
+		case AT91SAM9260_ID_US5:
+			pdev = &at91sam9260_uart5_device;
+			configure_usart5_pins();
+			at91_clock_associate("usart5_clk", &pdev->dev, "usart");
+			break;
+		default:
+			return;
+	}
+	pdev->id = portnr;		/* update to mapped ID */
+
+	if (portnr < ATMEL_MAX_UART)
+		at91_uarts[portnr] = pdev;
+}
+
+void __init at91_set_serial_console(unsigned portnr)
+{
+	if (portnr < ATMEL_MAX_UART)
+		atmel_default_console_device = at91_uarts[portnr];
+	if (!atmel_default_console_device)
+		printk(KERN_INFO "AT91: No default serial console defined.\n");
+}
+
 void __init at91_add_device_serial(void)
 {
 	int i;
@@ -1032,7 +1109,9 @@ void __init at91_add_device_serial(void)
 	}
 }
 #else
-void __init at91_init_serial(struct at91_uart_config *config) {}
+void __init __deprecated at91_init_serial(struct at91_uart_config *config) {}
+void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
+void __init at91_set_serial_console(unsigned portnr) {}
 void __init at91_add_device_serial(void) {}
 #endif
 
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index ba84ba6f18fb..467a6431d71a 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -867,12 +867,15 @@ static struct platform_device at91sam9261_uart0_device = {
 	.num_resources	= ARRAY_SIZE(uart0_resources),
 };
 
-static inline void configure_usart0_pins(void)
+static inline void configure_usart0_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PC8, 1);		/* TXD0 */
 	at91_set_A_periph(AT91_PIN_PC9, 0);		/* RXD0 */
-	at91_set_A_periph(AT91_PIN_PC10, 0);		/* RTS0 */
-	at91_set_A_periph(AT91_PIN_PC11, 0);		/* CTS0 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_A_periph(AT91_PIN_PC10, 0);	/* RTS0 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_A_periph(AT91_PIN_PC11, 0);	/* CTS0 */
 }
 
 static struct resource uart1_resources[] = {
@@ -907,10 +910,15 @@ static struct platform_device at91sam9261_uart1_device = {
 	.num_resources	= ARRAY_SIZE(uart1_resources),
 };
 
-static inline void configure_usart1_pins(void)
+static inline void configure_usart1_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PC12, 1);		/* TXD1 */
 	at91_set_A_periph(AT91_PIN_PC13, 0);		/* RXD1 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_B_periph(AT91_PIN_PA12, 0);	/* RTS1 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_B_periph(AT91_PIN_PA13, 0);	/* CTS1 */
 }
 
 static struct resource uart2_resources[] = {
@@ -945,16 +953,21 @@ static struct platform_device at91sam9261_uart2_device = {
 	.num_resources	= ARRAY_SIZE(uart2_resources),
 };
 
-static inline void configure_usart2_pins(void)
+static inline void configure_usart2_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PC15, 0);		/* RXD2 */
 	at91_set_A_periph(AT91_PIN_PC14, 1);		/* TXD2 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_B_periph(AT91_PIN_PA15, 0);	/* RTS2*/
+	if (pins & ATMEL_UART_CTS)
+		at91_set_B_periph(AT91_PIN_PA16, 0);	/* CTS2 */
 }
 
 static struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
 struct platform_device *atmel_default_console_device;	/* the serial console device */
 
-void __init at91_init_serial(struct at91_uart_config *config)
+void __init __deprecated at91_init_serial(struct at91_uart_config *config)
 {
 	int i;
 
@@ -962,17 +975,17 @@ void __init at91_init_serial(struct at91_uart_config *config)
 	for (i = 0; i < config->nr_tty; i++) {
 		switch (config->tty_map[i]) {
 			case 0:
-				configure_usart0_pins();
+				configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS);
 				at91_uarts[i] = &at91sam9261_uart0_device;
 				at91_clock_associate("usart0_clk", &at91sam9261_uart0_device.dev, "usart");
 				break;
 			case 1:
-				configure_usart1_pins();
+				configure_usart1_pins(0);
 				at91_uarts[i] = &at91sam9261_uart1_device;
 				at91_clock_associate("usart1_clk", &at91sam9261_uart1_device.dev, "usart");
 				break;
 			case 2:
-				configure_usart2_pins();
+				configure_usart2_pins(0);
 				at91_uarts[i] = &at91sam9261_uart2_device;
 				at91_clock_associate("usart2_clk", &at91sam9261_uart2_device.dev, "usart");
 				break;
@@ -994,6 +1007,48 @@ void __init at91_init_serial(struct at91_uart_config *config)
 		printk(KERN_INFO "AT91: No default serial console defined.\n");
 }
 
+void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
+{
+	struct platform_device *pdev;
+
+	switch (id) {
+		case 0:		/* DBGU */
+			pdev = &at91sam9261_dbgu_device;
+			configure_dbgu_pins();
+			at91_clock_associate("mck", &pdev->dev, "usart");
+			break;
+		case AT91SAM9261_ID_US0:
+			pdev = &at91sam9261_uart0_device;
+			configure_usart0_pins(pins);
+			at91_clock_associate("usart0_clk", &pdev->dev, "usart");
+			break;
+		case AT91SAM9261_ID_US1:
+			pdev = &at91sam9261_uart1_device;
+			configure_usart1_pins(pins);
+			at91_clock_associate("usart1_clk", &pdev->dev, "usart");
+			break;
+		case AT91SAM9261_ID_US2:
+			pdev = &at91sam9261_uart2_device;
+			configure_usart2_pins(pins);
+			at91_clock_associate("usart2_clk", &pdev->dev, "usart");
+			break;
+		default:
+			return;
+	}
+	pdev->id = portnr;		/* update to mapped ID */
+
+	if (portnr < ATMEL_MAX_UART)
+		at91_uarts[portnr] = pdev;
+}
+
+void __init at91_set_serial_console(unsigned portnr)
+{
+	if (portnr < ATMEL_MAX_UART)
+		atmel_default_console_device = at91_uarts[portnr];
+	if (!atmel_default_console_device)
+		printk(KERN_INFO "AT91: No default serial console defined.\n");
+}
+
 void __init at91_add_device_serial(void)
 {
 	int i;
@@ -1004,7 +1059,9 @@ void __init at91_add_device_serial(void)
 	}
 }
 #else
-void __init at91_init_serial(struct at91_uart_config *config) {}
+void __init __deprecated at91_init_serial(struct at91_uart_config *config) {}
+void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
+void __init at91_set_serial_console(unsigned portnr) {}
 void __init at91_add_device_serial(void) {}
 #endif
 
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index c025f5c5ffaa..a9f35d0c1cb0 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -1071,12 +1071,15 @@ static struct platform_device at91sam9263_uart0_device = {
 	.num_resources	= ARRAY_SIZE(uart0_resources),
 };
 
-static inline void configure_usart0_pins(void)
+static inline void configure_usart0_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PA26, 1);		/* TXD0 */
 	at91_set_A_periph(AT91_PIN_PA27, 0);		/* RXD0 */
-	at91_set_A_periph(AT91_PIN_PA28, 0);		/* RTS0 */
-	at91_set_A_periph(AT91_PIN_PA29, 0);		/* CTS0 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_A_periph(AT91_PIN_PA28, 0);	/* RTS0 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_A_periph(AT91_PIN_PA29, 0);	/* CTS0 */
 }
 
 static struct resource uart1_resources[] = {
@@ -1111,12 +1114,15 @@ static struct platform_device at91sam9263_uart1_device = {
 	.num_resources	= ARRAY_SIZE(uart1_resources),
 };
 
-static inline void configure_usart1_pins(void)
+static inline void configure_usart1_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PD0, 1);		/* TXD1 */
 	at91_set_A_periph(AT91_PIN_PD1, 0);		/* RXD1 */
-	at91_set_B_periph(AT91_PIN_PD7, 0);		/* RTS1 */
-	at91_set_B_periph(AT91_PIN_PD8, 0);		/* CTS1 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_B_periph(AT91_PIN_PD7, 0);	/* RTS1 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_B_periph(AT91_PIN_PD8, 0);	/* CTS1 */
 }
 
 static struct resource uart2_resources[] = {
@@ -1151,18 +1157,21 @@ static struct platform_device at91sam9263_uart2_device = {
 	.num_resources	= ARRAY_SIZE(uart2_resources),
 };
 
-static inline void configure_usart2_pins(void)
+static inline void configure_usart2_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PD2, 1);		/* TXD2 */
 	at91_set_A_periph(AT91_PIN_PD3, 0);		/* RXD2 */
-	at91_set_B_periph(AT91_PIN_PD5, 0);		/* RTS2 */
-	at91_set_B_periph(AT91_PIN_PD6, 0);		/* CTS2 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_B_periph(AT91_PIN_PD5, 0);	/* RTS2 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_B_periph(AT91_PIN_PD6, 0);	/* CTS2 */
 }
 
 static struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
 struct platform_device *atmel_default_console_device;	/* the serial console device */
 
-void __init at91_init_serial(struct at91_uart_config *config)
+void __init __deprecated at91_init_serial(struct at91_uart_config *config)
 {
 	int i;
 
@@ -1170,17 +1179,17 @@ void __init at91_init_serial(struct at91_uart_config *config)
 	for (i = 0; i < config->nr_tty; i++) {
 		switch (config->tty_map[i]) {
 			case 0:
-				configure_usart0_pins();
+				configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS);
 				at91_uarts[i] = &at91sam9263_uart0_device;
 				at91_clock_associate("usart0_clk", &at91sam9263_uart0_device.dev, "usart");
 				break;
 			case 1:
-				configure_usart1_pins();
+				configure_usart1_pins(ATMEL_UART_CTS | ATMEL_UART_RTS);
 				at91_uarts[i] = &at91sam9263_uart1_device;
 				at91_clock_associate("usart1_clk", &at91sam9263_uart1_device.dev, "usart");
 				break;
 			case 2:
-				configure_usart2_pins();
+				configure_usart2_pins(ATMEL_UART_CTS | ATMEL_UART_RTS);
 				at91_uarts[i] = &at91sam9263_uart2_device;
 				at91_clock_associate("usart2_clk", &at91sam9263_uart2_device.dev, "usart");
 				break;
@@ -1202,6 +1211,48 @@ void __init at91_init_serial(struct at91_uart_config *config)
 		printk(KERN_INFO "AT91: No default serial console defined.\n");
 }
 
+void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
+{
+	struct platform_device *pdev;
+
+	switch (id) {
+		case 0:		/* DBGU */
+			pdev = &at91sam9263_dbgu_device;
+			configure_dbgu_pins();
+			at91_clock_associate("mck", &pdev->dev, "usart");
+			break;
+		case AT91SAM9263_ID_US0:
+			pdev = &at91sam9263_uart0_device;
+			configure_usart0_pins(pins);
+			at91_clock_associate("usart0_clk", &pdev->dev, "usart");
+			break;
+		case AT91SAM9263_ID_US1:
+			pdev = &at91sam9263_uart1_device;
+			configure_usart1_pins(pins);
+			at91_clock_associate("usart1_clk", &pdev->dev, "usart");
+			break;
+		case AT91SAM9263_ID_US2:
+			pdev = &at91sam9263_uart2_device;
+			configure_usart2_pins(pins);
+			at91_clock_associate("usart2_clk", &pdev->dev, "usart");
+			break;
+		default:
+			return;
+	}
+	pdev->id = portnr;		/* update to mapped ID */
+
+	if (portnr < ATMEL_MAX_UART)
+		at91_uarts[portnr] = pdev;
+}
+
+void __init at91_set_serial_console(unsigned portnr)
+{
+	if (portnr < ATMEL_MAX_UART)
+		atmel_default_console_device = at91_uarts[portnr];
+	if (!atmel_default_console_device)
+		printk(KERN_INFO "AT91: No default serial console defined.\n");
+}
+
 void __init at91_add_device_serial(void)
 {
 	int i;
@@ -1213,6 +1264,8 @@ void __init at91_add_device_serial(void)
 }
 #else
 void __init at91_init_serial(struct at91_uart_config *config) {}
+void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
+void __init at91_set_serial_console(unsigned portnr) {}
 void __init at91_add_device_serial(void) {}
 #endif
 
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index e886cdfe919d..a942b9e35560 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -676,12 +676,23 @@ static struct platform_device at91sam9rl_uart0_device = {
 	.num_resources	= ARRAY_SIZE(uart0_resources),
 };
 
-static inline void configure_usart0_pins(void)
+static inline void configure_usart0_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PA6, 1);		/* TXD0 */
 	at91_set_A_periph(AT91_PIN_PA7, 0);		/* RXD0 */
-	at91_set_A_periph(AT91_PIN_PA9, 0);		/* RTS0 */
-	at91_set_A_periph(AT91_PIN_PA10, 0);		/* CTS0 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_A_periph(AT91_PIN_PA9, 0);	/* RTS0 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_A_periph(AT91_PIN_PA10, 0);	/* CTS0 */
+	if (pins & ATMEL_UART_DSR)
+		at91_set_A_periph(AT91_PIN_PD14, 0);	/* DSR0 */
+	if (pins & ATMEL_UART_DTR)
+		at91_set_A_periph(AT91_PIN_PD15, 0);	/* DTR0 */
+	if (pins & ATMEL_UART_DCD)
+		at91_set_A_periph(AT91_PIN_PD16, 0);	/* DCD0 */
+	if (pins & ATMEL_UART_RI)
+		at91_set_A_periph(AT91_PIN_PD17, 0);	/* RI0 */
 }
 
 static struct resource uart1_resources[] = {
@@ -716,10 +727,15 @@ static struct platform_device at91sam9rl_uart1_device = {
 	.num_resources	= ARRAY_SIZE(uart1_resources),
 };
 
-static inline void configure_usart1_pins(void)
+static inline void configure_usart1_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PA11, 1);		/* TXD1 */
 	at91_set_A_periph(AT91_PIN_PA12, 0);		/* RXD1 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_B_periph(AT91_PIN_PA18, 0);	/* RTS1 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_B_periph(AT91_PIN_PA19, 0);	/* CTS1 */
 }
 
 static struct resource uart2_resources[] = {
@@ -754,10 +770,15 @@ static struct platform_device at91sam9rl_uart2_device = {
 	.num_resources	= ARRAY_SIZE(uart2_resources),
 };
 
-static inline void configure_usart2_pins(void)
+static inline void configure_usart2_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PA13, 1);		/* TXD2 */
 	at91_set_A_periph(AT91_PIN_PA14, 0);		/* RXD2 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_A_periph(AT91_PIN_PA29, 0);	/* RTS2 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_A_periph(AT91_PIN_PA30, 0);	/* CTS2 */
 }
 
 static struct resource uart3_resources[] = {
@@ -792,16 +813,21 @@ static struct platform_device at91sam9rl_uart3_device = {
 	.num_resources	= ARRAY_SIZE(uart3_resources),
 };
 
-static inline void configure_usart3_pins(void)
+static inline void configure_usart3_pins(unsigned pins)
 {
 	at91_set_A_periph(AT91_PIN_PB0, 1);		/* TXD3 */
 	at91_set_A_periph(AT91_PIN_PB1, 0);		/* RXD3 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_B_periph(AT91_PIN_PD4, 0);	/* RTS3 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_B_periph(AT91_PIN_PD3, 0);	/* CTS3 */
 }
 
 static struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
 struct platform_device *atmel_default_console_device;	/* the serial console device */
 
-void __init at91_init_serial(struct at91_uart_config *config)
+void __init __deprecated at91_init_serial(struct at91_uart_config *config)
 {
 	int i;
 
@@ -809,22 +835,22 @@ void __init at91_init_serial(struct at91_uart_config *config)
 	for (i = 0; i < config->nr_tty; i++) {
 		switch (config->tty_map[i]) {
 			case 0:
-				configure_usart0_pins();
+				configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS);
 				at91_uarts[i] = &at91sam9rl_uart0_device;
 				at91_clock_associate("usart0_clk", &at91sam9rl_uart0_device.dev, "usart");
 				break;
 			case 1:
-				configure_usart1_pins();
+				configure_usart1_pins(0);
 				at91_uarts[i] = &at91sam9rl_uart1_device;
 				at91_clock_associate("usart1_clk", &at91sam9rl_uart1_device.dev, "usart");
 				break;
 			case 2:
-				configure_usart2_pins();
+				configure_usart2_pins(0);
 				at91_uarts[i] = &at91sam9rl_uart2_device;
 				at91_clock_associate("usart2_clk", &at91sam9rl_uart2_device.dev, "usart");
 				break;
 			case 3:
-				configure_usart3_pins();
+				configure_usart3_pins(0);
 				at91_uarts[i] = &at91sam9rl_uart3_device;
 				at91_clock_associate("usart3_clk", &at91sam9rl_uart3_device.dev, "usart");
 				break;
@@ -846,6 +872,53 @@ void __init at91_init_serial(struct at91_uart_config *config)
 		printk(KERN_INFO "AT91: No default serial console defined.\n");
 }
 
+void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
+{
+	struct platform_device *pdev;
+
+	switch (id) {
+		case 0:		/* DBGU */
+			pdev = &at91sam9rl_dbgu_device;
+			configure_dbgu_pins();
+			at91_clock_associate("mck", &pdev->dev, "usart");
+			break;
+		case AT91SAM9RL_ID_US0:
+			pdev = &at91sam9rl_uart0_device;
+			configure_usart0_pins(pins);
+			at91_clock_associate("usart0_clk", &pdev->dev, "usart");
+			break;
+		case AT91SAM9RL_ID_US1:
+			pdev = &at91sam9rl_uart1_device;
+			configure_usart1_pins(pins);
+			at91_clock_associate("usart1_clk", &pdev->dev, "usart");
+			break;
+		case AT91SAM9RL_ID_US2:
+			pdev = &at91sam9rl_uart2_device;
+			configure_usart2_pins(pins);
+			at91_clock_associate("usart2_clk", &pdev->dev, "usart");
+			break;
+		case AT91SAM9RL_ID_US3:
+			pdev = &at91sam9rl_uart3_device;
+			configure_usart3_pins(pins);
+			at91_clock_associate("usart3_clk", &pdev->dev, "usart");
+			break;
+		default:
+			return;
+	}
+	pdev->id = portnr;		/* update to mapped ID */
+
+	if (portnr < ATMEL_MAX_UART)
+		at91_uarts[portnr] = pdev;
+}
+
+void __init at91_set_serial_console(unsigned portnr)
+{
+	if (portnr < ATMEL_MAX_UART)
+		atmel_default_console_device = at91_uarts[portnr];
+	if (!atmel_default_console_device)
+		printk(KERN_INFO "AT91: No default serial console defined.\n");
+}
+
 void __init at91_add_device_serial(void)
 {
 	int i;
@@ -856,7 +929,9 @@ void __init at91_add_device_serial(void)
 	}
 }
 #else
-void __init at91_init_serial(struct at91_uart_config *config) {}
+void __init __deprecated at91_init_serial(struct at91_uart_config *config) {}
+void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
+void __init at91_set_serial_console(unsigned portnr) {}
 void __init at91_add_device_serial(void) {}
 #endif
 
diff --git a/include/asm-arm/arch-at91/board.h b/include/asm-arm/arch-at91/board.h
index 7fefe018833c..3f41ab28b37f 100644
--- a/include/asm-arm/arch-at91/board.h
+++ b/include/asm-arm/arch-at91/board.h
@@ -101,13 +101,23 @@ extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_de
 extern void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices);
 
  /* Serial */
+#define ATMEL_UART_CTS	0x01
+#define ATMEL_UART_RTS	0x02
+#define ATMEL_UART_DSR	0x04
+#define ATMEL_UART_DTR	0x08
+#define ATMEL_UART_DCD	0x10
+#define ATMEL_UART_RI	0x20
+
+extern void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins);
+extern void __init at91_set_serial_console(unsigned portnr);
+
 struct at91_uart_config {
 	unsigned short	console_tty;	/* tty number of serial console */
 	unsigned short	nr_tty;		/* number of serial tty's */
 	short		tty_map[];	/* map UART to tty number */
 };
 extern struct platform_device *atmel_default_console_device;
-extern void __init at91_init_serial(struct at91_uart_config *config);
+extern void __init __deprecated at91_init_serial(struct at91_uart_config *config);
 
 struct atmel_uart_data {
 	short		use_dma_tx;	/* use transmit DMA? */
-- 
cgit v1.2.3-59-g8ed1b


From a04ff1af9723607f5901b79c559357e37cee6823 Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Wed, 23 Jan 2008 09:27:06 +0100
Subject: [ARM] 4758/1: [AT91] LEDs

Move the LED initialization code out of the various *_devices.c files,
and into leds.c.
Also add support for NEW_LEDs.

Patch from David Brownell.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/Makefile              |  2 +-
 arch/arm/mach-at91/at91rm9200_devices.c  | 22 -----------
 arch/arm/mach-at91/at91sam9260_devices.c | 22 -----------
 arch/arm/mach-at91/at91sam9261_devices.c | 22 -----------
 arch/arm/mach-at91/at91sam9263_devices.c | 22 -----------
 arch/arm/mach-at91/at91sam9rl_devices.c  | 22 -----------
 arch/arm/mach-at91/leds.c                | 68 +++++++++++++++++++++++++++++++-
 include/asm-arm/arch-at91/board.h        |  4 +-
 8 files changed, 70 insertions(+), 114 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index a8a009c2cf7d..529ffb5f3f13 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -45,7 +45,7 @@ obj-$(CONFIG_MACH_AT91SAM9RLEK)	+= board-sam9rlek.o
 obj-$(CONFIG_MACH_AT91EB01)	+= board-eb01.o
 
 # Drivers
-obj-$(CONFIG_LEDS)		+= leds.o
+obj-y				+= leds.o
 
 # Power Management
 obj-$(CONFIG_PM)		+= pm.o
diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index 23966229ea9a..ea9a952fb877 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -613,28 +613,6 @@ static void __init at91_add_device_watchdog(void) {}
 #endif
 
 
-/* --------------------------------------------------------------------
- *  LEDs
- * -------------------------------------------------------------------- */
-
-#if defined(CONFIG_LEDS)
-u8 at91_leds_cpu;
-u8 at91_leds_timer;
-
-void __init at91_init_leds(u8 cpu_led, u8 timer_led)
-{
-	/* Enable GPIO to access the LEDs */
-	at91_set_gpio_output(cpu_led, 1);
-	at91_set_gpio_output(timer_led, 1);
-
-	at91_leds_cpu	= cpu_led;
-	at91_leds_timer	= timer_led;
-}
-#else
-void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
-#endif
-
-
 /* --------------------------------------------------------------------
  *  SSC -- Synchronous Serial Controller
  * -------------------------------------------------------------------- */
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index 5dd06bdccb00..105f8403860b 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -584,28 +584,6 @@ static void __init at91_add_device_watchdog(void) {}
 #endif
 
 
-/* --------------------------------------------------------------------
- *  LEDs
- * -------------------------------------------------------------------- */
-
-#if defined(CONFIG_LEDS)
-u8 at91_leds_cpu;
-u8 at91_leds_timer;
-
-void __init at91_init_leds(u8 cpu_led, u8 timer_led)
-{
-	/* Enable GPIO to access the LEDs */
-	at91_set_gpio_output(cpu_led, 1);
-	at91_set_gpio_output(timer_led, 1);
-
-	at91_leds_cpu	= cpu_led;
-	at91_leds_timer	= timer_led;
-}
-#else
-void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
-#endif
-
-
 /* --------------------------------------------------------------------
  *  SSC -- Synchronous Serial Controller
  * -------------------------------------------------------------------- */
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 467a6431d71a..57d7e3bd05db 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -596,28 +596,6 @@ static void __init at91_add_device_watchdog(void) {}
 #endif
 
 
-/* --------------------------------------------------------------------
- *  LEDs
- * -------------------------------------------------------------------- */
-
-#if defined(CONFIG_LEDS)
-u8 at91_leds_cpu;
-u8 at91_leds_timer;
-
-void __init at91_init_leds(u8 cpu_led, u8 timer_led)
-{
-	/* Enable GPIO to access the LEDs */
-	at91_set_gpio_output(cpu_led, 1);
-	at91_set_gpio_output(timer_led, 1);
-
-	at91_leds_cpu	= cpu_led;
-	at91_leds_timer	= timer_led;
-}
-#else
-void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
-#endif
-
-
 /* --------------------------------------------------------------------
  *  SSC -- Synchronous Serial Controller
  * -------------------------------------------------------------------- */
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index a9f35d0c1cb0..0b12e1adcc8e 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -843,28 +843,6 @@ static void __init at91_add_device_watchdog(void) {}
 #endif
 
 
-/* --------------------------------------------------------------------
- *  LEDs
- * -------------------------------------------------------------------- */
-
-#if defined(CONFIG_LEDS)
-u8 at91_leds_cpu;
-u8 at91_leds_timer;
-
-void __init at91_init_leds(u8 cpu_led, u8 timer_led)
-{
-	/* Enable GPIO to access the LEDs */
-	at91_set_gpio_output(cpu_led, 1);
-	at91_set_gpio_output(timer_led, 1);
-
-	at91_leds_cpu	= cpu_led;
-	at91_leds_timer	= timer_led;
-}
-#else
-void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
-#endif
-
-
 /* --------------------------------------------------------------------
  *  SSC -- Synchronous Serial Controller
  * -------------------------------------------------------------------- */
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index a942b9e35560..f43b5c33e45d 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -449,28 +449,6 @@ static void __init at91_add_device_watchdog(void) {}
 #endif
 
 
-/* --------------------------------------------------------------------
- *  LEDs
- * -------------------------------------------------------------------- */
-
-#if defined(CONFIG_LEDS)
-u8 at91_leds_cpu;
-u8 at91_leds_timer;
-
-void __init at91_init_leds(u8 cpu_led, u8 timer_led)
-{
-	/* Enable GPIO to access the LEDs */
-	at91_set_gpio_output(cpu_led, 1);
-	at91_set_gpio_output(timer_led, 1);
-
-	at91_leds_cpu	= cpu_led;
-	at91_leds_timer	= timer_led;
-}
-#else
-void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
-#endif
-
-
 /* --------------------------------------------------------------------
  *  SSC -- Synchronous Serial Controller
  * -------------------------------------------------------------------- */
diff --git a/arch/arm/mach-at91/leds.c b/arch/arm/mach-at91/leds.c
index 0d5144973988..9cdcda500fe8 100644
--- a/arch/arm/mach-at91/leds.c
+++ b/arch/arm/mach-at91/leds.c
@@ -14,11 +14,62 @@
 #include <linux/init.h>
 
 #include <asm/mach-types.h>
-#include <asm/leds.h>
 #include <asm/arch/board.h>
 #include <asm/arch/gpio.h>
 
 
+/* ------------------------------------------------------------------------- */
+
+#if defined(CONFIG_NEW_LEDS)
+
+#include <linux/platform_device.h>
+
+/*
+ * New cross-platform LED support.
+ */
+
+static struct gpio_led_platform_data led_data;
+
+static struct platform_device at91_leds = {
+	.name			= "leds-gpio",
+	.id			= -1,
+	.dev.platform_data	= &led_data,
+};
+
+void __init at91_gpio_leds(struct gpio_led *leds, int nr)
+{
+	int i;
+
+	if (!nr)
+		return;
+
+	for (i = 0; i < nr; i++)
+		at91_set_gpio_output(leds[i].gpio, leds[i].active_low);
+
+	led_data.leds = leds;
+	led_data.num_leds = nr;
+	platform_device_register(&at91_leds);
+}
+
+#else
+void __init at91_gpio_leds(struct gpio_led *leds, int nr) {}
+#endif
+
+
+/* ------------------------------------------------------------------------- */
+
+#if defined(CONFIG_LEDS)
+
+#include <asm/leds.h>
+
+/*
+ * Old ARM-specific LED framework; not fully functional when generic time is
+ * in use.
+ */
+
+static u8 at91_leds_cpu;
+static u8 at91_leds_timer;
+
 static inline void at91_led_on(unsigned int led)
 {
 	at91_set_gpio_value(led, 0);
@@ -93,3 +144,18 @@ static int __init leds_init(void)
 }
 
 __initcall(leds_init);
+
+
+void __init at91_init_leds(u8 cpu_led, u8 timer_led)
+{
+	/* Enable GPIO to access the LEDs */
+	at91_set_gpio_output(cpu_led, 1);
+	at91_set_gpio_output(timer_led, 1);
+
+	at91_leds_cpu	= cpu_led;
+	at91_leds_timer	= timer_led;
+}
+
+#else
+void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
+#endif
diff --git a/include/asm-arm/arch-at91/board.h b/include/asm-arm/arch-at91/board.h
index 3f41ab28b37f..e88ad8621c17 100644
--- a/include/asm-arm/arch-at91/board.h
+++ b/include/asm-arm/arch-at91/board.h
@@ -34,6 +34,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/device.h>
 #include <linux/i2c.h>
+#include <linux/leds.h>
 #include <linux/spi/spi.h>
 
  /* USB Device */
@@ -157,9 +158,8 @@ extern void __init at91_add_device_ac97(struct atmel_ac97_data *data);
 extern void __init at91_add_device_isi(void);
 
  /* LEDs */
-extern u8 at91_leds_cpu;
-extern u8 at91_leds_timer;
 extern void __init at91_init_leds(u8 cpu_led, u8 timer_led);
+extern void __init at91_gpio_leds(struct gpio_led *leds, int nr);
 
 /* FIXME: this needs a better location, but gets stuff building again */
 extern int at91_suspend_entering_slow_clock(void);
-- 
cgit v1.2.3-59-g8ed1b


From 6d2a8401d27e3eb8b71d09dd67e0e7d0085b5e29 Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Wed, 23 Jan 2008 09:28:27 +0100
Subject: [ARM] 4759/1: [AT91] Buttons on CSB300

Support for the 3 GPIO-connected buttons on the CSB300 board.

Based on wakeup testing code from David Brownell.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/board-csb337.c | 61 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/board-csb337.c b/arch/arm/mach-at91/board-csb337.c
index d0aa20c9383e..51cb3c8cc601 100644
--- a/arch/arm/mach-at91/board-csb337.c
+++ b/arch/arm/mach-at91/board-csb337.c
@@ -25,6 +25,8 @@
 #include <linux/platform_device.h>
 #include <linux/spi/spi.h>
 #include <linux/mtd/physmap.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
 
 #include <asm/hardware.h>
 #include <asm/setup.h>
@@ -156,6 +158,63 @@ static struct platform_device csb_flash = {
 	.num_resources	= ARRAY_SIZE(csb_flash_resources),
 };
 
+/*
+ * GPIO Buttons (on CSB300)
+ */
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+static struct gpio_keys_button csb300_buttons[] = {
+	{
+		.gpio		= AT91_PIN_PB29,
+		.code		= BTN_0,
+		.desc		= "sw0",
+		.active_low	= 1,
+		.wakeup		= 1,
+	},
+	{
+		.gpio		= AT91_PIN_PB28,
+		.code		= BTN_1,
+		.desc		= "sw1",
+		.active_low	= 1,
+		.wakeup		= 1,
+	},
+	{
+		.gpio		= AT91_PIN_PA21,
+		.code		= BTN_2,
+		.desc		= "sw2",
+		.active_low	= 1,
+		.wakeup		= 1,
+	}
+};
+
+static struct gpio_keys_platform_data csb300_button_data = {
+	.buttons	= csb300_buttons,
+	.nbuttons	= ARRAY_SIZE(csb300_buttons),
+};
+
+static struct platform_device csb300_button_device = {
+	.name		= "gpio-keys",
+	.id		= -1,
+	.num_resources	= 0,
+	.dev		= {
+		.platform_data	= &csb300_button_data,
+	}
+};
+
+static void __init csb300_add_device_buttons(void)
+{
+	at91_set_gpio_input(AT91_PIN_PB29, 0);	/* sw0 */
+	at91_set_deglitch(AT91_PIN_PB29, 1);
+	at91_set_gpio_input(AT91_PIN_PB28, 0);	/* sw1 */
+	at91_set_deglitch(AT91_PIN_PB28, 1);
+	at91_set_gpio_input(AT91_PIN_PA21, 0);	/* sw2 */
+	at91_set_deglitch(AT91_PIN_PA21, 1);
+
+	platform_device_register(&csb300_button_device);
+}
+#else
+static void __init csb300_add_device_buttons(void) {}
+#endif
+
 static void __init csb337_board_init(void)
 {
 	/* Serial */
@@ -177,6 +236,8 @@ static void __init csb337_board_init(void)
 	at91_add_device_mmc(0, &csb337_mmc_data);
 	/* NOR flash */
 	platform_device_register(&csb_flash);
+	/* Switches on CSB300 */
+	csb300_add_device_buttons();
 }
 
 MACHINE_START(CSB337, "Cogent CSB337")
-- 
cgit v1.2.3-59-g8ed1b


From 2743f0c1dcca54d6c80b0de1273b3f4e90051a85 Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Wed, 23 Jan 2008 09:29:46 +0100
Subject: [ARM] 4760/1: [AT91] SPI CS0 errata on AT91RM9200

Due to errata regarding the handling of SPI CS0 on the AT91RM9200, the
atmel_spi driver drives CS0 from the SPI controller and not as a GPIO
pin.
We therefore need to configure CS0 for use by the controller

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/at91rm9200_devices.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index ea9a952fb877..ef6aeb86e980 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -558,8 +558,11 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 		else
 			cs_pin = spi_standard_cs[devices[i].chip_select];
 
-		/* enable chip-select pin */
-		at91_set_gpio_output(cs_pin, 1);
+		if (devices[i].chip_select == 0)	/* for CS0 errata */
+			at91_set_A_periph(cs_pin, 0);
+		else
+			at91_set_gpio_output(cs_pin, 1);
+
 
 		/* pass chip-select pin to driver */
 		devices[i].controller_data = (void *) cs_pin;
-- 
cgit v1.2.3-59-g8ed1b


From 1b41bdf68a72c1fd506ee3dbfbf954fd2eaef75c Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Wed, 23 Jan 2008 09:32:17 +0100
Subject: [ARM] 4761/1: [AT91] Board-support for NEW_LEDs

Add NEW_LEDs support for the following boards:
 - Cogent CSB337
 - Atmel AT91RM9200-DK
 - Atmel AT91RM9200-EK
 - Atmel AT91SAM9263-EK

Mostly based on patch from David Brownell.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/board-csb337.c    | 24 ++++++++++++++++++++++++
 arch/arm/mach-at91/board-dk.c        | 10 ++++++++++
 arch/arm/mach-at91/board-ek.c        | 21 +++++++++++++++++++++
 arch/arm/mach-at91/board-sam9263ek.c | 26 ++++++++++++++++++++++++++
 4 files changed, 81 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/board-csb337.c b/arch/arm/mach-at91/board-csb337.c
index 51cb3c8cc601..0e2a11fc5bbd 100644
--- a/arch/arm/mach-at91/board-csb337.c
+++ b/arch/arm/mach-at91/board-csb337.c
@@ -215,6 +215,28 @@ static void __init csb300_add_device_buttons(void)
 static void __init csb300_add_device_buttons(void) {}
 #endif
 
+static struct gpio_led csb_leds[] = {
+	{	/* "led0", yellow */
+		.name			= "led0",
+		.gpio			= AT91_PIN_PB2,
+		.active_low		= 1,
+		.default_trigger	= "heartbeat",
+	},
+	{	/* "led1", green */
+		.name			= "led1",
+		.gpio			= AT91_PIN_PB1,
+		.active_low		= 1,
+		.default_trigger	= "mmc0",
+	},
+	{	/* "led2", yellow */
+		.name			= "led2",
+		.gpio			= AT91_PIN_PB0,
+		.active_low		= 1,
+		.default_trigger	= "ide-disk",
+	},
+};
+
+
 static void __init csb337_board_init(void)
 {
 	/* Serial */
@@ -236,6 +258,8 @@ static void __init csb337_board_init(void)
 	at91_add_device_mmc(0, &csb337_mmc_data);
 	/* NOR flash */
 	platform_device_register(&csb_flash);
+	/* LEDs */
+	at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds));
 	/* Switches on CSB300 */
 	csb300_add_device_buttons();
 }
diff --git a/arch/arm/mach-at91/board-dk.c b/arch/arm/mach-at91/board-dk.c
index 40c9e4331706..0a897efeba8e 100644
--- a/arch/arm/mach-at91/board-dk.c
+++ b/arch/arm/mach-at91/board-dk.c
@@ -183,6 +183,14 @@ static struct platform_device dk_flash = {
 	.num_resources	= 1,
 };
 
+static struct gpio_led dk_leds[] = {
+	{
+		.name			= "led0",
+		.gpio			= AT91_PIN_PB2,
+		.active_low		= 1,
+		.default_trigger	= "heartbeat",
+	}
+};
 
 static void __init dk_board_init(void)
 {
@@ -213,6 +221,8 @@ static void __init dk_board_init(void)
 	at91_add_device_nand(&dk_nand_data);
 	/* NOR Flash */
 	platform_device_register(&dk_flash);
+	/* LEDs */
+	at91_gpio_leds(dk_leds, ARRAY_SIZE(dk_leds));
 	/* VGA */
 //	dk_add_device_video();
 }
diff --git a/arch/arm/mach-at91/board-ek.c b/arch/arm/mach-at91/board-ek.c
index 53a5ef9e72ee..0574e50a30dd 100644
--- a/arch/arm/mach-at91/board-ek.c
+++ b/arch/arm/mach-at91/board-ek.c
@@ -141,6 +141,25 @@ static struct platform_device ek_flash = {
 	.num_resources	= 1,
 };
 
+static struct gpio_led ek_leds[] = {
+	{	/* "user led 1", DS2 */
+		.name			= "green",
+		.gpio			= AT91_PIN_PB0,
+		.active_low		= 1,
+		.default_trigger	= "mmc0",
+	},
+	{	/* "user led 2", DS4 */
+		.name			= "yellow",
+		.gpio			= AT91_PIN_PB1,
+		.active_low		= 1,
+		.default_trigger	= "heartbeat",
+	},
+	{	/* "user led 3", DS6 */
+		.name			= "red",
+		.gpio			= AT91_PIN_PB2,
+		.active_low		= 1,
+	}
+};
 
 static void __init ek_board_init(void)
 {
@@ -167,6 +186,8 @@ static void __init ek_board_init(void)
 #endif
 	/* NOR Flash */
 	platform_device_register(&ek_flash);
+	/* LEDs */
+	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 	/* VGA */
 //	ek_add_device_video();
 }
diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index a9dd59543ec7..2df0ff25d147 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -272,6 +272,30 @@ static struct atmel_ac97_data ek_ac97_data = {
 };
 
 
+/*
+ * LEDs ... these could all be PWM-driven, for variable brightness
+ */
+static struct gpio_led ek_leds[] = {
+	{	/* "left" led, green, userled1, pwm1 */
+		.name			= "ds1",
+		.gpio			= AT91_PIN_PB8,
+		.active_low		= 1,
+		.default_trigger	= "mmc0",
+	},
+	{	/* "right" led, green, userled2, pwm2 */
+		.name			= "ds2",
+		.gpio			= AT91_PIN_PC29,
+		.active_low		= 1,
+		.default_trigger	= "nand-disk",
+	},
+	{	/* "power" led, yellow, pwm0 */
+		.name			= "ds3",
+		.gpio			= AT91_PIN_PB7,
+		.default_trigger	= "heartbeat",
+	},
+};
+
+
 static void __init ek_board_init(void)
 {
 	/* Serial */
@@ -297,6 +321,8 @@ static void __init ek_board_init(void)
 	at91_add_device_lcdc(&ek_lcdc_data);
 	/* AC97 */
 	at91_add_device_ac97(&ek_ac97_data);
+	/* LEDs */
+	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 }
 
 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
-- 
cgit v1.2.3-59-g8ed1b


From da7a42d60ba214937ddb35152f336a4e4baa49a6 Mon Sep 17 00:00:00 2001
From: Christian Glindkamp <christian.glindkamp@taskit.de>
Date: Thu, 3 Jan 2008 12:15:23 +0100
Subject: [ARM] 4738/1: at91sam9261: Remove udc pullup enabling in board
 initialisation

Currently the udc pullup is enabled by default on boot. If the device
is connected to a host at this time, the host starts the negotiation
before the udc/gadget driver is ready to handle it.

Signed-off-by: Christian Glindkamp <christian.glindkamp@taskit.de>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/at91sam9261_devices.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 57d7e3bd05db..245641263fce 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -107,8 +107,6 @@ static struct platform_device at91sam9261_udc_device = {
 
 void __init at91_add_device_udc(struct at91_udc_data *data)
 {
-	unsigned long x;
-
 	if (!data)
 		return;
 
@@ -117,9 +115,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data)
 		at91_set_deglitch(data->vbus_pin, 1);
 	}
 
-	/* Pullup pin is handled internally */
-	x = at91_sys_read(AT91_MATRIX_USBPUCR);
-	at91_sys_write(AT91_MATRIX_USBPUCR, x | AT91_MATRIX_USBPUCR_PUON);
+	/* Pullup pin is handled internally by USB device peripheral */
 
 	udc_data = *data;
 	platform_device_register(&at91sam9261_udc_device);
-- 
cgit v1.2.3-59-g8ed1b


From 2b3b3516b6eeea1464e205b2dde9ebc9b7dd2ec8 Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Thu, 24 Jan 2008 15:10:39 +0100
Subject: [ARM] 4764/1: [AT91] AT91CAP9 core support

Add support for Atmel's AT91CAP9 Customizable Microcontroller family.
  <http://www.atmel.com/products/AT91CAP/Default.asp>

Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig                               |    4 +-
 arch/arm/mach-at91/Kconfig                     |    3 +
 arch/arm/mach-at91/Makefile                    |    1 +
 arch/arm/mach-at91/Makefile.boot               |    7 +-
 arch/arm/mach-at91/at91cap9.c                  |  365 ++++++++
 arch/arm/mach-at91/at91cap9_devices.c          | 1066 ++++++++++++++++++++++++
 arch/arm/mach-at91/clock.c                     |    2 +
 arch/arm/mach-at91/generic.h                   |    2 +
 arch/arm/mach-at91/pm.c                        |    5 +
 arch/arm/mm/Kconfig                            |    4 +-
 drivers/net/Kconfig                            |    2 +-
 drivers/usb/gadget/Kconfig                     |    2 +-
 drivers/video/Kconfig                          |    2 +-
 drivers/video/atmel_lcdfb.c                    |    2 +-
 include/asm-arm/arch-at91/at91_pmc.h           |    7 +-
 include/asm-arm/arch-at91/at91cap9.h           |  121 +++
 include/asm-arm/arch-at91/at91cap9_matrix.h    |  132 +++
 include/asm-arm/arch-at91/at91sam9263_matrix.h |    2 +-
 include/asm-arm/arch-at91/at91sam9rl_matrix.h  |    2 +-
 include/asm-arm/arch-at91/board.h              |    2 +-
 include/asm-arm/arch-at91/cpu.h                |    9 +-
 include/asm-arm/arch-at91/hardware.h           |    2 +
 include/asm-arm/arch-at91/timex.h              |    5 +
 include/asm-avr32/arch-at32ap/cpu.h            |    1 +
 24 files changed, 1735 insertions(+), 15 deletions(-)
 create mode 100644 arch/arm/mach-at91/at91cap9.c
 create mode 100644 arch/arm/mach-at91/at91cap9_devices.c
 create mode 100644 include/asm-arm/arch-at91/at91cap9.h
 create mode 100644 include/asm-arm/arch-at91/at91cap9_matrix.h

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 93e40b65fd0b..0bd479c47651 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -180,8 +180,8 @@ config ARCH_AT91
 	bool "Atmel AT91"
 	select GENERIC_GPIO
 	help
-	  This enables support for systems based on the Atmel AT91RM9200
-	  and AT91SAM9xxx processors.
+	  This enables support for systems based on the Atmel AT91RM9200,
+	  AT91SAM9 and AT91CAP9 processors.
 
 config ARCH_CLPS7500
 	bool "Cirrus CL-PS7500FE"
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 214733e897e5..d12c616407d6 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -22,6 +22,9 @@ config ARCH_AT91SAM9263
 config ARCH_AT91SAM9RL
 	bool "AT91SAM9RL"
 
+config ARCH_AT91CAP9
+	bool "AT91CAP9"
+
 config ARCH_AT91X40
 	bool "AT91x40"
 
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 529ffb5f3f13..10413c5d3f8a 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_ARCH_AT91SAM9260)	+= at91sam9260.o at91sam926x_time.o at91sam9260_d
 obj-$(CONFIG_ARCH_AT91SAM9261)	+= at91sam9261.o at91sam926x_time.o at91sam9261_devices.o
 obj-$(CONFIG_ARCH_AT91SAM9263)	+= at91sam9263.o at91sam926x_time.o at91sam9263_devices.o
 obj-$(CONFIG_ARCH_AT91SAM9RL)	+= at91sam9rl.o at91sam926x_time.o at91sam9rl_devices.o
+obj-$(CONFIG_ARCH_AT91CAP9)	+= at91cap9.o at91sam926x_time.o at91cap9_devices.o
 obj-$(CONFIG_ARCH_AT91X40)	+= at91x40.o at91x40_time.o
 
 # AT91RM9200 board-specific support
diff --git a/arch/arm/mach-at91/Makefile.boot b/arch/arm/mach-at91/Makefile.boot
index e667dcc7cd34..071a2506a69f 100644
--- a/arch/arm/mach-at91/Makefile.boot
+++ b/arch/arm/mach-at91/Makefile.boot
@@ -3,7 +3,12 @@
 #   PARAMS_PHYS must be within 4MB of ZRELADDR
 #   INITRD_PHYS must be in RAM
 
+ifeq ($(CONFIG_ARCH_AT91CAP9),y)
+   zreladdr-y	:= 0x70008000
+params_phys-y	:= 0x70000100
+initrd_phys-y	:= 0x70410000
+else
    zreladdr-y	:= 0x20008000
 params_phys-y	:= 0x20000100
 initrd_phys-y	:= 0x20410000
-
+endif
diff --git a/arch/arm/mach-at91/at91cap9.c b/arch/arm/mach-at91/at91cap9.c
new file mode 100644
index 000000000000..48d27d8000b0
--- /dev/null
+++ b/arch/arm/mach-at91/at91cap9.c
@@ -0,0 +1,365 @@
+/*
+ * arch/arm/mach-at91/at91cap9.c
+ *
+ *  Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
+ *  Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
+ *  Copyright (C) 2007 Atmel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/arch/at91cap9.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_rstc.h>
+
+#include "generic.h"
+#include "clock.h"
+
+static struct map_desc at91cap9_io_desc[] __initdata = {
+	{
+		.virtual	= AT91_VA_BASE_SYS,
+		.pfn		= __phys_to_pfn(AT91_BASE_SYS),
+		.length		= SZ_16K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= AT91_IO_VIRT_BASE - AT91CAP9_SRAM_SIZE,
+		.pfn		= __phys_to_pfn(AT91CAP9_SRAM_BASE),
+		.length		= AT91CAP9_SRAM_SIZE,
+		.type		= MT_DEVICE,
+	},
+};
+
+/* --------------------------------------------------------------------
+ *  Clocks
+ * -------------------------------------------------------------------- */
+
+/*
+ * The peripheral clocks.
+ */
+static struct clk pioABCD_clk = {
+	.name		= "pioABCD_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_PIOABCD,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk mpb0_clk = {
+	.name		= "mpb0_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_MPB0,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk mpb1_clk = {
+	.name		= "mpb1_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_MPB1,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk mpb2_clk = {
+	.name		= "mpb2_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_MPB2,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk mpb3_clk = {
+	.name		= "mpb3_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_MPB3,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk mpb4_clk = {
+	.name		= "mpb4_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_MPB4,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk usart0_clk = {
+	.name		= "usart0_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_US0,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk usart1_clk = {
+	.name		= "usart1_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_US1,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk usart2_clk = {
+	.name		= "usart2_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_US2,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk mmc0_clk = {
+	.name		= "mci0_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_MCI0,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk mmc1_clk = {
+	.name		= "mci1_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_MCI1,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk can_clk = {
+	.name		= "can_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_CAN,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk twi_clk = {
+	.name		= "twi_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_TWI,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk spi0_clk = {
+	.name		= "spi0_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_SPI0,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk spi1_clk = {
+	.name		= "spi1_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_SPI1,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk ssc0_clk = {
+	.name		= "ssc0_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_SSC0,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk ssc1_clk = {
+	.name		= "ssc1_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_SSC1,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk ac97_clk = {
+	.name		= "ac97_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_AC97C,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk tcb_clk = {
+	.name		= "tcb_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_TCB,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk pwmc_clk = {
+	.name		= "pwmc_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_PWMC,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk macb_clk = {
+	.name		= "macb_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_EMAC,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk aestdes_clk = {
+	.name		= "aestdes_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_AESTDES,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk adc_clk = {
+	.name		= "adc_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_ADC,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk isi_clk = {
+	.name		= "isi_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_ISI,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk lcdc_clk = {
+	.name		= "lcdc_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_LCDC,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk dma_clk = {
+	.name		= "dma_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_DMA,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk udphs_clk = {
+	.name		= "udphs_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_UDPHS,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk ohci_clk = {
+	.name		= "ohci_clk",
+	.pmc_mask	= 1 << AT91CAP9_ID_UHP,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+
+static struct clk *periph_clocks[] __initdata = {
+	&pioABCD_clk,
+	&mpb0_clk,
+	&mpb1_clk,
+	&mpb2_clk,
+	&mpb3_clk,
+	&mpb4_clk,
+	&usart0_clk,
+	&usart1_clk,
+	&usart2_clk,
+	&mmc0_clk,
+	&mmc1_clk,
+	&can_clk,
+	&twi_clk,
+	&spi0_clk,
+	&spi1_clk,
+	&ssc0_clk,
+	&ssc1_clk,
+	&ac97_clk,
+	&tcb_clk,
+	&pwmc_clk,
+	&macb_clk,
+	&aestdes_clk,
+	&adc_clk,
+	&isi_clk,
+	&lcdc_clk,
+	&dma_clk,
+	&udphs_clk,
+	&ohci_clk,
+	// irq0 .. irq1
+};
+
+/*
+ * The four programmable clocks.
+ * You must configure pin multiplexing to bring these signals out.
+ */
+static struct clk pck0 = {
+	.name		= "pck0",
+	.pmc_mask	= AT91_PMC_PCK0,
+	.type		= CLK_TYPE_PROGRAMMABLE,
+	.id		= 0,
+};
+static struct clk pck1 = {
+	.name		= "pck1",
+	.pmc_mask	= AT91_PMC_PCK1,
+	.type		= CLK_TYPE_PROGRAMMABLE,
+	.id		= 1,
+};
+static struct clk pck2 = {
+	.name		= "pck2",
+	.pmc_mask	= AT91_PMC_PCK2,
+	.type		= CLK_TYPE_PROGRAMMABLE,
+	.id		= 2,
+};
+static struct clk pck3 = {
+	.name		= "pck3",
+	.pmc_mask	= AT91_PMC_PCK3,
+	.type		= CLK_TYPE_PROGRAMMABLE,
+	.id		= 3,
+};
+
+static void __init at91cap9_register_clocks(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
+		clk_register(periph_clocks[i]);
+
+	clk_register(&pck0);
+	clk_register(&pck1);
+	clk_register(&pck2);
+	clk_register(&pck3);
+}
+
+/* --------------------------------------------------------------------
+ *  GPIO
+ * -------------------------------------------------------------------- */
+
+static struct at91_gpio_bank at91cap9_gpio[] = {
+	{
+		.id		= AT91CAP9_ID_PIOABCD,
+		.offset		= AT91_PIOA,
+		.clock		= &pioABCD_clk,
+	}, {
+		.id		= AT91CAP9_ID_PIOABCD,
+		.offset		= AT91_PIOB,
+		.clock		= &pioABCD_clk,
+	}, {
+		.id		= AT91CAP9_ID_PIOABCD,
+		.offset		= AT91_PIOC,
+		.clock		= &pioABCD_clk,
+	}, {
+		.id		= AT91CAP9_ID_PIOABCD,
+		.offset		= AT91_PIOD,
+		.clock		= &pioABCD_clk,
+	}
+};
+
+static void at91cap9_reset(void)
+{
+	at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
+}
+
+/* --------------------------------------------------------------------
+ *  AT91CAP9 processor initialization
+ * -------------------------------------------------------------------- */
+
+void __init at91cap9_initialize(unsigned long main_clock)
+{
+	/* Map peripherals */
+	iotable_init(at91cap9_io_desc, ARRAY_SIZE(at91cap9_io_desc));
+
+	at91_arch_reset = at91cap9_reset;
+	at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1);
+
+	/* Init clock subsystem */
+	at91_clock_init(main_clock);
+
+	/* Register the processor-specific clocks */
+	at91cap9_register_clocks();
+
+	/* Register GPIO subsystem */
+	at91_gpio_init(at91cap9_gpio, 4);
+}
+
+/* --------------------------------------------------------------------
+ *  Interrupt initialization
+ * -------------------------------------------------------------------- */
+
+/*
+ * The default interrupt priority levels (0 = lowest, 7 = highest).
+ */
+static unsigned int at91cap9_default_irq_priority[NR_AIC_IRQS] __initdata = {
+	7,	/* Advanced Interrupt Controller (FIQ) */
+	7,	/* System Peripherals */
+	1,	/* Parallel IO Controller A, B, C and D */
+	0,	/* MP Block Peripheral 0 */
+	0,	/* MP Block Peripheral 1 */
+	0,	/* MP Block Peripheral 2 */
+	0,	/* MP Block Peripheral 3 */
+	0,	/* MP Block Peripheral 4 */
+	5,	/* USART 0 */
+	5,	/* USART 1 */
+	5,	/* USART 2 */
+	0,	/* Multimedia Card Interface 0 */
+	0,	/* Multimedia Card Interface 1 */
+	3,	/* CAN */
+	6,	/* Two-Wire Interface */
+	5,	/* Serial Peripheral Interface 0 */
+	5,	/* Serial Peripheral Interface 1 */
+	4,	/* Serial Synchronous Controller 0 */
+	4,	/* Serial Synchronous Controller 1 */
+	5,	/* AC97 Controller */
+	0,	/* Timer Counter 0, 1 and 2 */
+	0,	/* Pulse Width Modulation Controller */
+	3,	/* Ethernet */
+	0,	/* Advanced Encryption Standard, Triple DES*/
+	0,	/* Analog-to-Digital Converter */
+	0,	/* Image Sensor Interface */
+	3,	/* LCD Controller */
+	0,	/* DMA Controller */
+	2,	/* USB Device Port */
+	2,	/* USB Host port */
+	0,	/* Advanced Interrupt Controller (IRQ0) */
+	0,	/* Advanced Interrupt Controller (IRQ1) */
+};
+
+void __init at91cap9_init_interrupts(unsigned int priority[NR_AIC_IRQS])
+{
+	if (!priority)
+		priority = at91cap9_default_irq_priority;
+
+	/* Initialize the AIC interrupt controller */
+	at91_aic_init(priority);
+
+	/* Enable GPIO interrupts */
+	at91_gpio_irq_setup();
+}
diff --git a/arch/arm/mach-at91/at91cap9_devices.c b/arch/arm/mach-at91/at91cap9_devices.c
new file mode 100644
index 000000000000..c50fad9cd143
--- /dev/null
+++ b/arch/arm/mach-at91/at91cap9_devices.c
@@ -0,0 +1,1066 @@
+/*
+ * arch/arm/mach-at91/at91cap9_devices.c
+ *
+ *  Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
+ *  Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
+ *  Copyright (C) 2007 Atmel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+
+#include <video/atmel_lcdc.h>
+
+#include <asm/arch/board.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/at91cap9.h>
+#include <asm/arch/at91sam926x_mc.h>
+#include <asm/arch/at91cap9_matrix.h>
+
+#include "generic.h"
+
+
+/* --------------------------------------------------------------------
+ *  USB Host
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
+static u64 ohci_dmamask = DMA_BIT_MASK(32);
+static struct at91_usbh_data usbh_data;
+
+static struct resource usbh_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_UHP_BASE,
+		.end	= AT91CAP9_UHP_BASE + SZ_1M - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_UHP,
+		.end	= AT91CAP9_ID_UHP,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91_usbh_device = {
+	.name		= "at91_ohci",
+	.id		= -1,
+	.dev		= {
+				.dma_mask		= &ohci_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &usbh_data,
+	},
+	.resource	= usbh_resources,
+	.num_resources	= ARRAY_SIZE(usbh_resources),
+};
+
+void __init at91_add_device_usbh(struct at91_usbh_data *data)
+{
+	int i;
+
+	if (!data)
+		return;
+
+	/* Enable VBus control for UHP ports */
+	for (i = 0; i < data->ports; i++) {
+		if (data->vbus_pin[i])
+			at91_set_gpio_output(data->vbus_pin[i], 0);
+	}
+
+	usbh_data = *data;
+	platform_device_register(&at91_usbh_device);
+}
+#else
+void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
+#endif
+
+
+/* --------------------------------------------------------------------
+ *  Ethernet
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
+static u64 eth_dmamask = DMA_BIT_MASK(32);
+static struct at91_eth_data eth_data;
+
+static struct resource eth_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_BASE_EMAC,
+		.end	= AT91CAP9_BASE_EMAC + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_EMAC,
+		.end	= AT91CAP9_ID_EMAC,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91cap9_eth_device = {
+	.name		= "macb",
+	.id		= -1,
+	.dev		= {
+				.dma_mask		= &eth_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &eth_data,
+	},
+	.resource	= eth_resources,
+	.num_resources	= ARRAY_SIZE(eth_resources),
+};
+
+void __init at91_add_device_eth(struct at91_eth_data *data)
+{
+	if (!data)
+		return;
+
+	if (data->phy_irq_pin) {
+		at91_set_gpio_input(data->phy_irq_pin, 0);
+		at91_set_deglitch(data->phy_irq_pin, 1);
+	}
+
+	/* Pins used for MII and RMII */
+	at91_set_A_periph(AT91_PIN_PB21, 0);	/* ETXCK_EREFCK */
+	at91_set_A_periph(AT91_PIN_PB22, 0);	/* ERXDV */
+	at91_set_A_periph(AT91_PIN_PB25, 0);	/* ERX0 */
+	at91_set_A_periph(AT91_PIN_PB26, 0);	/* ERX1 */
+	at91_set_A_periph(AT91_PIN_PB27, 0);	/* ERXER */
+	at91_set_A_periph(AT91_PIN_PB28, 0);	/* ETXEN */
+	at91_set_A_periph(AT91_PIN_PB23, 0);	/* ETX0 */
+	at91_set_A_periph(AT91_PIN_PB24, 0);	/* ETX1 */
+	at91_set_A_periph(AT91_PIN_PB30, 0);	/* EMDIO */
+	at91_set_A_periph(AT91_PIN_PB29, 0);	/* EMDC */
+
+	if (!data->is_rmii) {
+		at91_set_B_periph(AT91_PIN_PC25, 0);	/* ECRS */
+		at91_set_B_periph(AT91_PIN_PC26, 0);	/* ECOL */
+		at91_set_B_periph(AT91_PIN_PC22, 0);	/* ERX2 */
+		at91_set_B_periph(AT91_PIN_PC23, 0);	/* ERX3 */
+		at91_set_B_periph(AT91_PIN_PC27, 0);	/* ERXCK */
+		at91_set_B_periph(AT91_PIN_PC20, 0);	/* ETX2 */
+		at91_set_B_periph(AT91_PIN_PC21, 0);	/* ETX3 */
+		at91_set_B_periph(AT91_PIN_PC24, 0);	/* ETXER */
+	}
+
+	eth_data = *data;
+	platform_device_register(&at91cap9_eth_device);
+}
+#else
+void __init at91_add_device_eth(struct at91_eth_data *data) {}
+#endif
+
+
+/* --------------------------------------------------------------------
+ *  MMC / SD
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
+static u64 mmc_dmamask = DMA_BIT_MASK(32);
+static struct at91_mmc_data mmc0_data, mmc1_data;
+
+static struct resource mmc0_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_BASE_MCI0,
+		.end	= AT91CAP9_BASE_MCI0 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_MCI0,
+		.end	= AT91CAP9_ID_MCI0,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91cap9_mmc0_device = {
+	.name		= "at91_mci",
+	.id		= 0,
+	.dev		= {
+				.dma_mask		= &mmc_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &mmc0_data,
+	},
+	.resource	= mmc0_resources,
+	.num_resources	= ARRAY_SIZE(mmc0_resources),
+};
+
+static struct resource mmc1_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_BASE_MCI1,
+		.end	= AT91CAP9_BASE_MCI1 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_MCI1,
+		.end	= AT91CAP9_ID_MCI1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91cap9_mmc1_device = {
+	.name		= "at91_mci",
+	.id		= 1,
+	.dev		= {
+				.dma_mask		= &mmc_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &mmc1_data,
+	},
+	.resource	= mmc1_resources,
+	.num_resources	= ARRAY_SIZE(mmc1_resources),
+};
+
+void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
+{
+	if (!data)
+		return;
+
+	/* input/irq */
+	if (data->det_pin) {
+		at91_set_gpio_input(data->det_pin, 1);
+		at91_set_deglitch(data->det_pin, 1);
+	}
+	if (data->wp_pin)
+		at91_set_gpio_input(data->wp_pin, 1);
+	if (data->vcc_pin)
+		at91_set_gpio_output(data->vcc_pin, 0);
+
+	if (mmc_id == 0) {		/* MCI0 */
+		/* CLK */
+		at91_set_A_periph(AT91_PIN_PA2, 0);
+
+		/* CMD */
+		at91_set_A_periph(AT91_PIN_PA1, 1);
+
+		/* DAT0, maybe DAT1..DAT3 */
+		at91_set_A_periph(AT91_PIN_PA0, 1);
+		if (data->wire4) {
+			at91_set_A_periph(AT91_PIN_PA3, 1);
+			at91_set_A_periph(AT91_PIN_PA4, 1);
+			at91_set_A_periph(AT91_PIN_PA5, 1);
+		}
+
+		mmc0_data = *data;
+		at91_clock_associate("mci0_clk", &at91cap9_mmc1_device.dev, "mci_clk");
+		platform_device_register(&at91cap9_mmc0_device);
+	} else {			/* MCI1 */
+		/* CLK */
+		at91_set_A_periph(AT91_PIN_PA16, 0);
+
+		/* CMD */
+		at91_set_A_periph(AT91_PIN_PA17, 1);
+
+		/* DAT0, maybe DAT1..DAT3 */
+		at91_set_A_periph(AT91_PIN_PA18, 1);
+		if (data->wire4) {
+			at91_set_A_periph(AT91_PIN_PA19, 1);
+			at91_set_A_periph(AT91_PIN_PA20, 1);
+			at91_set_A_periph(AT91_PIN_PA21, 1);
+		}
+
+		mmc1_data = *data;
+		at91_clock_associate("mci1_clk", &at91cap9_mmc1_device.dev, "mci_clk");
+		platform_device_register(&at91cap9_mmc1_device);
+	}
+}
+#else
+void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
+#endif
+
+
+/* --------------------------------------------------------------------
+ *  NAND / SmartMedia
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
+static struct at91_nand_data nand_data;
+
+#define NAND_BASE	AT91_CHIPSELECT_3
+
+static struct resource nand_resources[] = {
+	{
+		.start	= NAND_BASE,
+		.end	= NAND_BASE + SZ_256M - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device at91cap9_nand_device = {
+	.name		= "at91_nand",
+	.id		= -1,
+	.dev		= {
+				.platform_data	= &nand_data,
+	},
+	.resource	= nand_resources,
+	.num_resources	= ARRAY_SIZE(nand_resources),
+};
+
+void __init at91_add_device_nand(struct at91_nand_data *data)
+{
+	unsigned long csa, mode;
+
+	if (!data)
+		return;
+
+	csa = at91_sys_read(AT91_MATRIX_EBICSA);
+	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
+
+	/* set the bus interface characteristics */
+	at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(1)
+			| AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(1));
+
+	at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(6)
+			| AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(6));
+
+	at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(8) | AT91_SMC_NRDCYCLE_(8));
+
+	if (data->bus_width_16)
+		mode = AT91_SMC_DBW_16;
+	else
+		mode = AT91_SMC_DBW_8;
+	at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(1));
+
+	/* enable pin */
+	if (data->enable_pin)
+		at91_set_gpio_output(data->enable_pin, 1);
+
+	/* ready/busy pin */
+	if (data->rdy_pin)
+		at91_set_gpio_input(data->rdy_pin, 1);
+
+	/* card detect pin */
+	if (data->det_pin)
+		at91_set_gpio_input(data->det_pin, 1);
+
+	nand_data = *data;
+	platform_device_register(&at91cap9_nand_device);
+}
+#else
+void __init at91_add_device_nand(struct at91_nand_data *data) {}
+#endif
+
+/* --------------------------------------------------------------------
+ *  TWI (i2c)
+ * -------------------------------------------------------------------- */
+
+/*
+ * Prefer the GPIO code since the TWI controller isn't robust
+ * (gets overruns and underruns under load) and can only issue
+ * repeated STARTs in one scenario (the driver doesn't yet handle them).
+ */
+#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+
+static struct i2c_gpio_platform_data pdata = {
+	.sda_pin		= AT91_PIN_PB4,
+	.sda_is_open_drain	= 1,
+	.scl_pin		= AT91_PIN_PB5,
+	.scl_is_open_drain	= 1,
+	.udelay			= 2,		/* ~100 kHz */
+};
+
+static struct platform_device at91cap9_twi_device = {
+	.name			= "i2c-gpio",
+	.id			= -1,
+	.dev.platform_data	= &pdata,
+};
+
+void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
+{
+	at91_set_GPIO_periph(AT91_PIN_PB4, 1);		/* TWD (SDA) */
+	at91_set_multi_drive(AT91_PIN_PB4, 1);
+
+	at91_set_GPIO_periph(AT91_PIN_PB5, 1);		/* TWCK (SCL) */
+	at91_set_multi_drive(AT91_PIN_PB5, 1);
+
+	i2c_register_board_info(0, devices, nr_devices);
+	platform_device_register(&at91cap9_twi_device);
+}
+
+#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
+
+static struct resource twi_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_BASE_TWI,
+		.end	= AT91CAP9_BASE_TWI + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_TWI,
+		.end	= AT91CAP9_ID_TWI,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91cap9_twi_device = {
+	.name		= "at91_i2c",
+	.id		= -1,
+	.resource	= twi_resources,
+	.num_resources	= ARRAY_SIZE(twi_resources),
+};
+
+void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
+{
+	/* pins used for TWI interface */
+	at91_set_B_periph(AT91_PIN_PB4, 0);		/* TWD */
+	at91_set_multi_drive(AT91_PIN_PB4, 1);
+
+	at91_set_B_periph(AT91_PIN_PB5, 0);		/* TWCK */
+	at91_set_multi_drive(AT91_PIN_PB5, 1);
+
+	i2c_register_board_info(0, devices, nr_devices);
+	platform_device_register(&at91cap9_twi_device);
+}
+#else
+void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
+#endif
+
+/* --------------------------------------------------------------------
+ *  SPI
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
+static u64 spi_dmamask = DMA_BIT_MASK(32);
+
+static struct resource spi0_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_BASE_SPI0,
+		.end	= AT91CAP9_BASE_SPI0 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_SPI0,
+		.end	= AT91CAP9_ID_SPI0,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91cap9_spi0_device = {
+	.name		= "atmel_spi",
+	.id		= 0,
+	.dev		= {
+				.dma_mask		= &spi_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= spi0_resources,
+	.num_resources	= ARRAY_SIZE(spi0_resources),
+};
+
+static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA5, AT91_PIN_PA3, AT91_PIN_PD0, AT91_PIN_PD1 };
+
+static struct resource spi1_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_BASE_SPI1,
+		.end	= AT91CAP9_BASE_SPI1 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_SPI1,
+		.end	= AT91CAP9_ID_SPI1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91cap9_spi1_device = {
+	.name		= "atmel_spi",
+	.id		= 1,
+	.dev		= {
+				.dma_mask		= &spi_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= spi1_resources,
+	.num_resources	= ARRAY_SIZE(spi1_resources),
+};
+
+static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB15, AT91_PIN_PB16, AT91_PIN_PB17, AT91_PIN_PB18 };
+
+void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
+{
+	int i;
+	unsigned long cs_pin;
+	short enable_spi0 = 0;
+	short enable_spi1 = 0;
+
+	/* Choose SPI chip-selects */
+	for (i = 0; i < nr_devices; i++) {
+		if (devices[i].controller_data)
+			cs_pin = (unsigned long) devices[i].controller_data;
+		else if (devices[i].bus_num == 0)
+			cs_pin = spi0_standard_cs[devices[i].chip_select];
+		else
+			cs_pin = spi1_standard_cs[devices[i].chip_select];
+
+		if (devices[i].bus_num == 0)
+			enable_spi0 = 1;
+		else
+			enable_spi1 = 1;
+
+		/* enable chip-select pin */
+		at91_set_gpio_output(cs_pin, 1);
+
+		/* pass chip-select pin to driver */
+		devices[i].controller_data = (void *) cs_pin;
+	}
+
+	spi_register_board_info(devices, nr_devices);
+
+	/* Configure SPI bus(es) */
+	if (enable_spi0) {
+		at91_set_B_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
+		at91_set_B_periph(AT91_PIN_PA1, 0);	/* SPI0_MOSI */
+		at91_set_B_periph(AT91_PIN_PA2, 0);	/* SPI0_SPCK */
+
+		at91_clock_associate("spi0_clk", &at91cap9_spi0_device.dev, "spi_clk");
+		platform_device_register(&at91cap9_spi0_device);
+	}
+	if (enable_spi1) {
+		at91_set_A_periph(AT91_PIN_PB12, 0);	/* SPI1_MISO */
+		at91_set_A_periph(AT91_PIN_PB13, 0);	/* SPI1_MOSI */
+		at91_set_A_periph(AT91_PIN_PB14, 0);	/* SPI1_SPCK */
+
+		at91_clock_associate("spi1_clk", &at91cap9_spi1_device.dev, "spi_clk");
+		platform_device_register(&at91cap9_spi1_device);
+	}
+}
+#else
+void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
+#endif
+
+
+/* --------------------------------------------------------------------
+ *  RTT
+ * -------------------------------------------------------------------- */
+
+static struct platform_device at91cap9_rtt_device = {
+	.name		= "at91_rtt",
+	.id		= -1,
+	.num_resources	= 0,
+};
+
+static void __init at91_add_device_rtt(void)
+{
+	platform_device_register(&at91cap9_rtt_device);
+}
+
+
+/* --------------------------------------------------------------------
+ *  Watchdog
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
+static struct platform_device at91cap9_wdt_device = {
+	.name		= "at91_wdt",
+	.id		= -1,
+	.num_resources	= 0,
+};
+
+static void __init at91_add_device_watchdog(void)
+{
+	platform_device_register(&at91cap9_wdt_device);
+}
+#else
+static void __init at91_add_device_watchdog(void) {}
+#endif
+
+
+/* --------------------------------------------------------------------
+ *  AC97
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_SND_AT91_AC97) || defined(CONFIG_SND_AT91_AC97_MODULE)
+static u64 ac97_dmamask = DMA_BIT_MASK(32);
+static struct atmel_ac97_data ac97_data;
+
+static struct resource ac97_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_BASE_AC97C,
+		.end	= AT91CAP9_BASE_AC97C + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_AC97C,
+		.end	= AT91CAP9_ID_AC97C,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91cap9_ac97_device = {
+	.name		= "ac97c",
+	.id		= 1,
+	.dev		= {
+				.dma_mask		= &ac97_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &ac97_data,
+	},
+	.resource	= ac97_resources,
+	.num_resources	= ARRAY_SIZE(ac97_resources),
+};
+
+void __init at91_add_device_ac97(struct atmel_ac97_data *data)
+{
+	if (!data)
+		return;
+
+	at91_set_A_periph(AT91_PIN_PA6, 0);	/* AC97FS */
+	at91_set_A_periph(AT91_PIN_PA7, 0);	/* AC97CK */
+	at91_set_A_periph(AT91_PIN_PA8, 0);	/* AC97TX */
+	at91_set_A_periph(AT91_PIN_PA9, 0);	/* AC97RX */
+
+	/* reset */
+	if (data->reset_pin)
+		at91_set_gpio_output(data->reset_pin, 0);
+
+	ac97_data = *data;
+	platform_device_register(&at91cap9_ac97_device);
+}
+#else
+void __init at91_add_device_ac97(struct atmel_ac97_data *data) {}
+#endif
+
+
+/* --------------------------------------------------------------------
+ *  LCD Controller
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
+static u64 lcdc_dmamask = DMA_BIT_MASK(32);
+static struct atmel_lcdfb_info lcdc_data;
+
+static struct resource lcdc_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_LCDC_BASE,
+		.end	= AT91CAP9_LCDC_BASE + SZ_4K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_LCDC,
+		.end	= AT91CAP9_ID_LCDC,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91_lcdc_device = {
+	.name		= "atmel_lcdfb",
+	.id		= 0,
+	.dev		= {
+				.dma_mask		= &lcdc_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &lcdc_data,
+	},
+	.resource	= lcdc_resources,
+	.num_resources	= ARRAY_SIZE(lcdc_resources),
+};
+
+void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
+{
+	if (!data)
+		return;
+
+	at91_set_A_periph(AT91_PIN_PC1, 0);	/* LCDHSYNC */
+	at91_set_A_periph(AT91_PIN_PC2, 0);	/* LCDDOTCK */
+	at91_set_A_periph(AT91_PIN_PC3, 0);	/* LCDDEN */
+	at91_set_B_periph(AT91_PIN_PB9, 0);	/* LCDCC */
+	at91_set_A_periph(AT91_PIN_PC6, 0);	/* LCDD2 */
+	at91_set_A_periph(AT91_PIN_PC7, 0);	/* LCDD3 */
+	at91_set_A_periph(AT91_PIN_PC8, 0);	/* LCDD4 */
+	at91_set_A_periph(AT91_PIN_PC9, 0);	/* LCDD5 */
+	at91_set_A_periph(AT91_PIN_PC10, 0);	/* LCDD6 */
+	at91_set_A_periph(AT91_PIN_PC11, 0);	/* LCDD7 */
+	at91_set_A_periph(AT91_PIN_PC14, 0);	/* LCDD10 */
+	at91_set_A_periph(AT91_PIN_PC15, 0);	/* LCDD11 */
+	at91_set_A_periph(AT91_PIN_PC16, 0);	/* LCDD12 */
+	at91_set_A_periph(AT91_PIN_PC17, 0);	/* LCDD13 */
+	at91_set_A_periph(AT91_PIN_PC18, 0);	/* LCDD14 */
+	at91_set_A_periph(AT91_PIN_PC19, 0);	/* LCDD15 */
+	at91_set_A_periph(AT91_PIN_PC22, 0);	/* LCDD18 */
+	at91_set_A_periph(AT91_PIN_PC23, 0);	/* LCDD19 */
+	at91_set_A_periph(AT91_PIN_PC24, 0);	/* LCDD20 */
+	at91_set_A_periph(AT91_PIN_PC25, 0);	/* LCDD21 */
+	at91_set_A_periph(AT91_PIN_PC26, 0);	/* LCDD22 */
+	at91_set_A_periph(AT91_PIN_PC27, 0);	/* LCDD23 */
+
+	lcdc_data = *data;
+	platform_device_register(&at91_lcdc_device);
+}
+#else
+void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
+#endif
+
+
+/* --------------------------------------------------------------------
+ *  SSC -- Synchronous Serial Controller
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
+static u64 ssc0_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc0_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_BASE_SSC0,
+		.end	= AT91CAP9_BASE_SSC0 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_SSC0,
+		.end	= AT91CAP9_ID_SSC0,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91cap9_ssc0_device = {
+	.name	= "ssc",
+	.id	= 0,
+	.dev	= {
+		.dma_mask		= &ssc0_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc0_resources,
+	.num_resources	= ARRAY_SIZE(ssc0_resources),
+};
+
+static inline void configure_ssc0_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_A_periph(AT91_PIN_PB0, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_A_periph(AT91_PIN_PB1, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_A_periph(AT91_PIN_PB2, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_A_periph(AT91_PIN_PB3, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_A_periph(AT91_PIN_PB4, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_A_periph(AT91_PIN_PB5, 1);
+}
+
+static u64 ssc1_dmamask = DMA_BIT_MASK(32);
+
+static struct resource ssc1_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_BASE_SSC1,
+		.end	= AT91CAP9_BASE_SSC1 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_SSC1,
+		.end	= AT91CAP9_ID_SSC1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91cap9_ssc1_device = {
+	.name	= "ssc",
+	.id	= 1,
+	.dev	= {
+		.dma_mask		= &ssc1_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.resource	= ssc1_resources,
+	.num_resources	= ARRAY_SIZE(ssc1_resources),
+};
+
+static inline void configure_ssc1_pins(unsigned pins)
+{
+	if (pins & ATMEL_SSC_TF)
+		at91_set_A_periph(AT91_PIN_PB6, 1);
+	if (pins & ATMEL_SSC_TK)
+		at91_set_A_periph(AT91_PIN_PB7, 1);
+	if (pins & ATMEL_SSC_TD)
+		at91_set_A_periph(AT91_PIN_PB8, 1);
+	if (pins & ATMEL_SSC_RD)
+		at91_set_A_periph(AT91_PIN_PB9, 1);
+	if (pins & ATMEL_SSC_RK)
+		at91_set_A_periph(AT91_PIN_PB10, 1);
+	if (pins & ATMEL_SSC_RF)
+		at91_set_A_periph(AT91_PIN_PB11, 1);
+}
+
+/*
+ * SSC controllers are accessed through library code, instead of any
+ * kind of all-singing/all-dancing driver.  For example one could be
+ * used by a particular I2S audio codec's driver, while another one
+ * on the same system might be used by a custom data capture driver.
+ */
+void __init at91_add_device_ssc(unsigned id, unsigned pins)
+{
+	struct platform_device *pdev;
+
+	/*
+	 * NOTE: caller is responsible for passing information matching
+	 * "pins" to whatever will be using each particular controller.
+	 */
+	switch (id) {
+	case AT91CAP9_ID_SSC0:
+		pdev = &at91cap9_ssc0_device;
+		configure_ssc0_pins(pins);
+		at91_clock_associate("ssc0_clk", &pdev->dev, "ssc");
+		break;
+	case AT91CAP9_ID_SSC1:
+		pdev = &at91cap9_ssc1_device;
+		configure_ssc1_pins(pins);
+		at91_clock_associate("ssc1_clk", &pdev->dev, "ssc");
+		break;
+	default:
+		return;
+	}
+
+	platform_device_register(pdev);
+}
+
+#else
+void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
+#endif
+
+
+/* --------------------------------------------------------------------
+ *  UART
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_SERIAL_ATMEL)
+static struct resource dbgu_resources[] = {
+	[0] = {
+		.start	= AT91_VA_BASE_SYS + AT91_DBGU,
+		.end	= AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91_ID_SYS,
+		.end	= AT91_ID_SYS,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct atmel_uart_data dbgu_data = {
+	.use_dma_tx	= 0,
+	.use_dma_rx	= 0,		/* DBGU not capable of receive DMA */
+	.regs		= (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
+};
+
+static u64 dbgu_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device at91cap9_dbgu_device = {
+	.name		= "atmel_usart",
+	.id		= 0,
+	.dev		= {
+				.dma_mask		= &dbgu_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &dbgu_data,
+	},
+	.resource	= dbgu_resources,
+	.num_resources	= ARRAY_SIZE(dbgu_resources),
+};
+
+static inline void configure_dbgu_pins(void)
+{
+	at91_set_A_periph(AT91_PIN_PC30, 0);		/* DRXD */
+	at91_set_A_periph(AT91_PIN_PC31, 1);		/* DTXD */
+}
+
+static struct resource uart0_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_BASE_US0,
+		.end	= AT91CAP9_BASE_US0 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_US0,
+		.end	= AT91CAP9_ID_US0,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct atmel_uart_data uart0_data = {
+	.use_dma_tx	= 1,
+	.use_dma_rx	= 1,
+};
+
+static u64 uart0_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device at91cap9_uart0_device = {
+	.name		= "atmel_usart",
+	.id		= 1,
+	.dev		= {
+				.dma_mask		= &uart0_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart0_data,
+	},
+	.resource	= uart0_resources,
+	.num_resources	= ARRAY_SIZE(uart0_resources),
+};
+
+static inline void configure_usart0_pins(unsigned pins)
+{
+	at91_set_A_periph(AT91_PIN_PA22, 1);		/* TXD0 */
+	at91_set_A_periph(AT91_PIN_PA23, 0);		/* RXD0 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_A_periph(AT91_PIN_PA24, 0);	/* RTS0 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_A_periph(AT91_PIN_PA25, 0);	/* CTS0 */
+}
+
+static struct resource uart1_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_BASE_US1,
+		.end	= AT91CAP9_BASE_US1 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_US1,
+		.end	= AT91CAP9_ID_US1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct atmel_uart_data uart1_data = {
+	.use_dma_tx	= 1,
+	.use_dma_rx	= 1,
+};
+
+static u64 uart1_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device at91cap9_uart1_device = {
+	.name		= "atmel_usart",
+	.id		= 2,
+	.dev		= {
+				.dma_mask		= &uart1_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart1_data,
+	},
+	.resource	= uart1_resources,
+	.num_resources	= ARRAY_SIZE(uart1_resources),
+};
+
+static inline void configure_usart1_pins(unsigned pins)
+{
+	at91_set_A_periph(AT91_PIN_PD0, 1);		/* TXD1 */
+	at91_set_A_periph(AT91_PIN_PD1, 0);		/* RXD1 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_B_periph(AT91_PIN_PD7, 0);	/* RTS1 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_B_periph(AT91_PIN_PD8, 0);	/* CTS1 */
+}
+
+static struct resource uart2_resources[] = {
+	[0] = {
+		.start	= AT91CAP9_BASE_US2,
+		.end	= AT91CAP9_BASE_US2 + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91CAP9_ID_US2,
+		.end	= AT91CAP9_ID_US2,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct atmel_uart_data uart2_data = {
+	.use_dma_tx	= 1,
+	.use_dma_rx	= 1,
+};
+
+static u64 uart2_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device at91cap9_uart2_device = {
+	.name		= "atmel_usart",
+	.id		= 3,
+	.dev		= {
+				.dma_mask		= &uart2_dmamask,
+				.coherent_dma_mask	= DMA_BIT_MASK(32),
+				.platform_data		= &uart2_data,
+	},
+	.resource	= uart2_resources,
+	.num_resources	= ARRAY_SIZE(uart2_resources),
+};
+
+static inline void configure_usart2_pins(unsigned pins)
+{
+	at91_set_A_periph(AT91_PIN_PD2, 1);		/* TXD2 */
+	at91_set_A_periph(AT91_PIN_PD3, 0);		/* RXD2 */
+
+	if (pins & ATMEL_UART_RTS)
+		at91_set_B_periph(AT91_PIN_PD5, 0);	/* RTS2 */
+	if (pins & ATMEL_UART_CTS)
+		at91_set_B_periph(AT91_PIN_PD6, 0);	/* CTS2 */
+}
+
+static struct platform_device *at91_uarts[ATMEL_MAX_UART];	/* the UARTs to use */
+struct platform_device *atmel_default_console_device;	/* the serial console device */
+
+void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
+{
+	struct platform_device *pdev;
+
+	switch (id) {
+		case 0:		/* DBGU */
+			pdev = &at91cap9_dbgu_device;
+			configure_dbgu_pins();
+			at91_clock_associate("mck", &pdev->dev, "usart");
+			break;
+		case AT91CAP9_ID_US0:
+			pdev = &at91cap9_uart0_device;
+			configure_usart0_pins(pins);
+			at91_clock_associate("usart0_clk", &pdev->dev, "usart");
+			break;
+		case AT91CAP9_ID_US1:
+			pdev = &at91cap9_uart1_device;
+			configure_usart1_pins(pins);
+			at91_clock_associate("usart1_clk", &pdev->dev, "usart");
+			break;
+		case AT91CAP9_ID_US2:
+			pdev = &at91cap9_uart2_device;
+			configure_usart2_pins(pins);
+			at91_clock_associate("usart2_clk", &pdev->dev, "usart");
+			break;
+		default:
+			return;
+	}
+	pdev->id = portnr;		/* update to mapped ID */
+
+	if (portnr < ATMEL_MAX_UART)
+		at91_uarts[portnr] = pdev;
+}
+
+void __init at91_set_serial_console(unsigned portnr)
+{
+	if (portnr < ATMEL_MAX_UART)
+		atmel_default_console_device = at91_uarts[portnr];
+	if (!atmel_default_console_device)
+		printk(KERN_INFO "AT91: No default serial console defined.\n");
+}
+
+void __init at91_add_device_serial(void)
+{
+	int i;
+
+	for (i = 0; i < ATMEL_MAX_UART; i++) {
+		if (at91_uarts[i])
+			platform_device_register(at91_uarts[i]);
+	}
+}
+#else
+void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
+void __init at91_set_serial_console(unsigned portnr) {}
+void __init at91_add_device_serial(void) {}
+#endif
+
+
+/* -------------------------------------------------------------------- */
+/*
+ * These devices are always present and don't need any board-specific
+ * setup.
+ */
+static int __init at91_add_standard_devices(void)
+{
+	at91_add_device_rtt();
+	at91_add_device_watchdog();
+	return 0;
+}
+
+arch_initcall(at91_add_standard_devices);
diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c
index 57c3b647ce83..ec76eeaafd45 100644
--- a/arch/arm/mach-at91/clock.c
+++ b/arch/arm/mach-at91/clock.c
@@ -574,6 +574,8 @@ int __init at91_clock_init(unsigned long main_clock)
 	} else if (cpu_is_at91sam9260() || cpu_is_at91sam9261() || cpu_is_at91sam9263()) {
 		uhpck.pmc_mask = AT91SAM926x_PMC_UHP;
 		udpck.pmc_mask = AT91SAM926x_PMC_UDP;
+	} else if (cpu_is_at91cap9()) {
+		uhpck.pmc_mask = AT91CAP9_PMC_UHP;
 	}
 	at91_sys_write(AT91_CKGR_PLLBR, 0);
 
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index 77d4c0a37842..b5daf7f5e011 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -15,6 +15,7 @@ extern void __init at91sam9261_initialize(unsigned long main_clock);
 extern void __init at91sam9263_initialize(unsigned long main_clock);
 extern void __init at91sam9rl_initialize(unsigned long main_clock);
 extern void __init at91x40_initialize(unsigned long main_clock);
+extern void __init at91cap9_initialize(unsigned long main_clock);
 
  /* Interrupts */
 extern void __init at91rm9200_init_interrupts(unsigned int priority[]);
@@ -23,6 +24,7 @@ extern void __init at91sam9261_init_interrupts(unsigned int priority[]);
 extern void __init at91sam9263_init_interrupts(unsigned int priority[]);
 extern void __init at91sam9rl_init_interrupts(unsigned int priority[]);
 extern void __init at91x40_init_interrupts(unsigned int priority[]);
+extern void __init at91cap9_init_interrupts(unsigned int priority[]);
 extern void __init at91_aic_init(unsigned int priority[]);
 
  /* Timer */
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 98cb61482917..4b120cc36135 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -80,6 +80,11 @@ static int at91_pm_verify_clocks(void)
 			pr_debug("AT91: PM - Suspend-to-RAM with USB still active\n");
 			return 0;
 		}
+	} else if (cpu_is_at91cap9()) {
+		if ((scsr & AT91CAP9_PMC_UHP) != 0) {
+			pr_debug("AT91: PM - Suspend-to-RAM with USB still active\n");
+			return 0;
+		}
 	}
 
 #ifdef CONFIG_AT91_PROGRAMMABLE_CLOCKS
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 7868f4dc1d00..1bf2a7bfe09d 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -171,8 +171,8 @@ config CPU_ARM925T
 # ARM926T
 config CPU_ARM926T
 	bool "Support ARM926T processor"
-	depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_NS9XXX || ARCH_DAVINCI
-	default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_NS9XXX || ARCH_DAVINCI
+	depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || ARCH_NS9XXX || ARCH_DAVINCI
+	default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || ARCH_NS9XXX || ARCH_DAVINCI
 	select CPU_32v5
 	select CPU_ABRT_EV5TJ
 	select CPU_CACHE_VIVT
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 9af05a2f4af3..a6728661c416 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -212,7 +212,7 @@ config MII
 
 config MACB
 	tristate "Atmel MACB support"
-	depends on AVR32 || ARCH_AT91SAM9260 || ARCH_AT91SAM9263
+	depends on AVR32 || ARCH_AT91SAM9260 || ARCH_AT91SAM9263 || ARCH_AT91CAP9
 	select PHYLIB
 	help
 	  The Atmel MACB ethernet interface is found on many AT32 and AT91
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index f81d08d6538b..77a3759d6fc7 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -308,7 +308,7 @@ config USB_S3C2410_DEBUG
 
 config USB_GADGET_AT91
 	boolean "AT91 USB Device Port"
-	depends on ARCH_AT91 && !ARCH_AT91SAM9RL
+	depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9
 	select USB_GADGET_SELECTED
 	help
 	   Many Atmel AT91 processors (such as the AT91RM2000) have a
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 5b3dbcfcda48..758435f8a6f8 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -889,7 +889,7 @@ config FB_S1D13XXX
 
 config FB_ATMEL
 	tristate "AT91/AT32 LCD Controller support"
-	depends on FB && (ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || AVR32)
+	depends on FB && (ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || AVR32)
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 7c30cc8df71e..f8e711147501 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -30,7 +30,7 @@
 #define ATMEL_LCDC_CVAL_DEFAULT		0xc8
 #define ATMEL_LCDC_DMA_BURST_LEN	8
 
-#if defined(CONFIG_ARCH_AT91SAM9263)
+#if defined(CONFIG_ARCH_AT91SAM9263) || defined(CONFIG_ARCH_AT91CAP9)
 #define ATMEL_LCDC_FIFO_SIZE		2048
 #else
 #define ATMEL_LCDC_FIFO_SIZE		512
diff --git a/include/asm-arm/arch-at91/at91_pmc.h b/include/asm-arm/arch-at91/at91_pmc.h
index 34804eaab4f2..52cd8e5dabc9 100644
--- a/include/asm-arm/arch-at91/at91_pmc.h
+++ b/include/asm-arm/arch-at91/at91_pmc.h
@@ -25,6 +25,7 @@
 #define		AT91RM9200_PMC_MCKUDP	(1 <<  2)		/* USB Device Port Master Clock Automatic Disable on Suspend [AT91RM9200 only] */
 #define		AT91RM9200_PMC_UHP	(1 <<  4)		/* USB Host Port Clock [AT91RM9200 only] */
 #define		AT91SAM926x_PMC_UHP	(1 <<  6)		/* USB Host Port Clock [AT91SAM926x only] */
+#define		AT91CAP9_PMC_UHP	(1 <<  6)		/* USB Host Port Clock [AT91CAP9 only] */
 #define		AT91SAM926x_PMC_UDP	(1 <<  7)		/* USB Devcice Port Clock [AT91SAM926x only] */
 #define		AT91_PMC_PCK0		(1 <<  8)		/* Programmable Clock 0 */
 #define		AT91_PMC_PCK1		(1 <<  9)		/* Programmable Clock 1 */
@@ -37,7 +38,7 @@
 #define	AT91_PMC_PCDR		(AT91_PMC + 0x14)	/* Peripheral Clock Disable Register */
 #define	AT91_PMC_PCSR		(AT91_PMC + 0x18)	/* Peripheral Clock Status Register */
 
-#define	AT91_CKGR_UCKR		(AT91_PMC + 0x1C)	/* UTMI Clock Register [SAM9RL only] */
+#define	AT91_CKGR_UCKR		(AT91_PMC + 0x1C)	/* UTMI Clock Register [SAM9RL, CAP9] */
 
 #define	AT91_CKGR_MOR		(AT91_PMC + 0x20)	/* Main Oscillator Register [not on SAM9RL] */
 #define		AT91_PMC_MOSCEN		(1    << 0)		/* Main Oscillator Enable */
@@ -54,6 +55,10 @@
 #define		AT91_PMC_PLLCOUNT	(0x3f  <<  8)		/* PLL Counter */
 #define		AT91_PMC_OUT		(3     << 14)		/* PLL Clock Frequency Range */
 #define		AT91_PMC_MUL		(0x7ff << 16)		/* PLL Multiplier */
+#define		AT91_PMC_USBDIV		(3     << 28)		/* USB Divisor (PLLB only) */
+#define			AT91_PMC_USBDIV_1		(0 << 28)
+#define			AT91_PMC_USBDIV_2		(1 << 28)
+#define			AT91_PMC_USBDIV_4		(2 << 28)
 #define		AT91_PMC_USB96M		(1     << 28)		/* Divider by 2 Enable (PLLB only) */
 
 #define	AT91_PMC_MCKR		(AT91_PMC + 0x30)	/* Master Clock Register */
diff --git a/include/asm-arm/arch-at91/at91cap9.h b/include/asm-arm/arch-at91/at91cap9.h
new file mode 100644
index 000000000000..73e1fcf4a0aa
--- /dev/null
+++ b/include/asm-arm/arch-at91/at91cap9.h
@@ -0,0 +1,121 @@
+/*
+ * include/asm-arm/arch-at91/at91cap9.h
+ *
+ *  Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
+ *  Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
+ *  Copyright (C) 2007 Atmel Corporation.
+ *
+ * Common definitions.
+ * Based on AT91CAP9 datasheet revision B (Preliminary).
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef AT91CAP9_H
+#define AT91CAP9_H
+
+/*
+ * Peripheral identifiers/interrupts.
+ */
+#define AT91_ID_FIQ		0	/* Advanced Interrupt Controller (FIQ) */
+#define AT91_ID_SYS		1	/* System Peripherals */
+#define AT91CAP9_ID_PIOABCD	2	/* Parallel IO Controller A, B, C and D */
+#define AT91CAP9_ID_MPB0	3	/* MP Block Peripheral 0 */
+#define AT91CAP9_ID_MPB1	4	/* MP Block Peripheral 1 */
+#define AT91CAP9_ID_MPB2	5	/* MP Block Peripheral 2 */
+#define AT91CAP9_ID_MPB3	6	/* MP Block Peripheral 3 */
+#define AT91CAP9_ID_MPB4	7	/* MP Block Peripheral 4 */
+#define AT91CAP9_ID_US0		8	/* USART 0 */
+#define AT91CAP9_ID_US1		9	/* USART 1 */
+#define AT91CAP9_ID_US2		10	/* USART 2 */
+#define AT91CAP9_ID_MCI0	11	/* Multimedia Card Interface 0 */
+#define AT91CAP9_ID_MCI1	12	/* Multimedia Card Interface 1 */
+#define AT91CAP9_ID_CAN		13	/* CAN */
+#define AT91CAP9_ID_TWI		14	/* Two-Wire Interface */
+#define AT91CAP9_ID_SPI0	15	/* Serial Peripheral Interface 0 */
+#define AT91CAP9_ID_SPI1	16	/* Serial Peripheral Interface 0 */
+#define AT91CAP9_ID_SSC0	17	/* Serial Synchronous Controller 0 */
+#define AT91CAP9_ID_SSC1	18	/* Serial Synchronous Controller 1 */
+#define AT91CAP9_ID_AC97C	19	/* AC97 Controller */
+#define AT91CAP9_ID_TCB		20	/* Timer Counter 0, 1 and 2 */
+#define AT91CAP9_ID_PWMC	21	/* Pulse Width Modulation Controller */
+#define AT91CAP9_ID_EMAC	22	/* Ethernet */
+#define AT91CAP9_ID_AESTDES	23	/* Advanced Encryption Standard, Triple DES */
+#define AT91CAP9_ID_ADC		24	/* Analog-to-Digital Converter */
+#define AT91CAP9_ID_ISI		25	/* Image Sensor Interface */
+#define AT91CAP9_ID_LCDC	26	/* LCD Controller */
+#define AT91CAP9_ID_DMA		27	/* DMA Controller */
+#define AT91CAP9_ID_UDPHS	28	/* USB High Speed Device Port */
+#define AT91CAP9_ID_UHP		29	/* USB Host Port */
+#define AT91CAP9_ID_IRQ0	30	/* Advanced Interrupt Controller (IRQ0) */
+#define AT91CAP9_ID_IRQ1	31	/* Advanced Interrupt Controller (IRQ1) */
+
+/*
+ * User Peripheral physical base addresses.
+ */
+#define AT91CAP9_BASE_UDPHS		0xfff78000
+#define AT91CAP9_BASE_TCB0		0xfff7c000
+#define AT91CAP9_BASE_TC0		0xfff7c000
+#define AT91CAP9_BASE_TC1		0xfff7c040
+#define AT91CAP9_BASE_TC2		0xfff7c080
+#define AT91CAP9_BASE_MCI0		0xfff80000
+#define AT91CAP9_BASE_MCI1		0xfff84000
+#define AT91CAP9_BASE_TWI		0xfff88000
+#define AT91CAP9_BASE_US0		0xfff8c000
+#define AT91CAP9_BASE_US1		0xfff90000
+#define AT91CAP9_BASE_US2		0xfff94000
+#define AT91CAP9_BASE_SSC0		0xfff98000
+#define AT91CAP9_BASE_SSC1		0xfff9c000
+#define AT91CAP9_BASE_AC97C		0xfffa0000
+#define AT91CAP9_BASE_SPI0		0xfffa4000
+#define AT91CAP9_BASE_SPI1		0xfffa8000
+#define AT91CAP9_BASE_CAN		0xfffac000
+#define AT91CAP9_BASE_PWMC		0xfffb8000
+#define AT91CAP9_BASE_EMAC		0xfffbc000
+#define AT91CAP9_BASE_ADC		0xfffc0000
+#define AT91CAP9_BASE_ISI		0xfffc4000
+#define AT91_BASE_SYS			0xffffe200
+
+/*
+ * System Peripherals (offset from AT91_BASE_SYS)
+ */
+#define AT91_ECC	(0xffffe200 - AT91_BASE_SYS)
+#define AT91_BCRAMC	(0xffffe400 - AT91_BASE_SYS)
+#define AT91_DDRSDRC	(0xffffe600 - AT91_BASE_SYS)
+#define AT91_SMC	(0xffffe800 - AT91_BASE_SYS)
+#define AT91_MATRIX	(0xffffea00 - AT91_BASE_SYS)
+#define AT91_CCFG	(0xffffeb10 - AT91_BASE_SYS)
+#define AT91_DMA	(0xffffec00 - AT91_BASE_SYS)
+#define AT91_DBGU	(0xffffee00 - AT91_BASE_SYS)
+#define AT91_AIC	(0xfffff000 - AT91_BASE_SYS)
+#define AT91_PIOA	(0xfffff200 - AT91_BASE_SYS)
+#define AT91_PIOB	(0xfffff400 - AT91_BASE_SYS)
+#define AT91_PIOC	(0xfffff600 - AT91_BASE_SYS)
+#define AT91_PIOD	(0xfffff800 - AT91_BASE_SYS)
+#define AT91_PMC	(0xfffffc00 - AT91_BASE_SYS)
+#define AT91_RSTC	(0xfffffd00 - AT91_BASE_SYS)
+#define AT91_SHDC	(0xfffffd10 - AT91_BASE_SYS)
+#define AT91_RTT	(0xfffffd20 - AT91_BASE_SYS)
+#define AT91_PIT	(0xfffffd30 - AT91_BASE_SYS)
+#define AT91_WDT	(0xfffffd40 - AT91_BASE_SYS)
+#define AT91_GPBR	(0xfffffd50 - AT91_BASE_SYS)
+
+/*
+ * Internal Memory.
+ */
+#define AT91CAP9_SRAM_BASE	0x00100000	/* Internal SRAM base address */
+#define AT91CAP9_SRAM_SIZE	(32 * SZ_1K)	/* Internal SRAM size (32Kb) */
+
+#define AT91CAP9_ROM_BASE	0x00400000	/* Internal ROM base address */
+#define AT91CAP9_ROM_SIZE	(32 * SZ_1K)	/* Internal ROM size (32Kb) */
+
+#define AT91CAP9_LCDC_BASE	0x00500000	/* LCD Controller */
+#define AT91CAP9_UDPHS_BASE	0x00600000	/* USB High Speed Device Port */
+#define AT91CAP9_UHP_BASE	0x00700000	/* USB Host controller */
+
+#define CONFIG_DRAM_BASE	AT91_CHIPSELECT_6
+
+#endif
diff --git a/include/asm-arm/arch-at91/at91cap9_matrix.h b/include/asm-arm/arch-at91/at91cap9_matrix.h
new file mode 100644
index 000000000000..a641686b6c3d
--- /dev/null
+++ b/include/asm-arm/arch-at91/at91cap9_matrix.h
@@ -0,0 +1,132 @@
+/*
+ * include/asm-arm/arch-at91/at91cap9_matrix.h
+ *
+ *  Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
+ *  Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
+ *  Copyright (C) 2006 Atmel Corporation.
+ *
+ * Memory Controllers (MATRIX, EBI) - System peripherals registers.
+ * Based on AT91CAP9 datasheet revision B (Preliminary).
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef AT91CAP9_MATRIX_H
+#define AT91CAP9_MATRIX_H
+
+#define AT91_MATRIX_MCFG0	(AT91_MATRIX + 0x00)	/* Master Configuration Register 0 */
+#define AT91_MATRIX_MCFG1	(AT91_MATRIX + 0x04)	/* Master Configuration Register 1 */
+#define AT91_MATRIX_MCFG2	(AT91_MATRIX + 0x08)	/* Master Configuration Register 2 */
+#define AT91_MATRIX_MCFG3	(AT91_MATRIX + 0x0C)	/* Master Configuration Register 3 */
+#define AT91_MATRIX_MCFG4	(AT91_MATRIX + 0x10)	/* Master Configuration Register 4 */
+#define AT91_MATRIX_MCFG5	(AT91_MATRIX + 0x14)	/* Master Configuration Register 5 */
+#define AT91_MATRIX_MCFG6	(AT91_MATRIX + 0x18)	/* Master Configuration Register 6 */
+#define AT91_MATRIX_MCFG7	(AT91_MATRIX + 0x1C)	/* Master Configuration Register 7 */
+#define AT91_MATRIX_MCFG8	(AT91_MATRIX + 0x20)	/* Master Configuration Register 8 */
+#define AT91_MATRIX_MCFG9	(AT91_MATRIX + 0x24)	/* Master Configuration Register 9 */
+#define AT91_MATRIX_MCFG10	(AT91_MATRIX + 0x28)	/* Master Configuration Register 10 */
+#define AT91_MATRIX_MCFG11	(AT91_MATRIX + 0x2C)	/* Master Configuration Register 11 */
+#define		AT91_MATRIX_ULBT	(7 << 0)	/* Undefined Length Burst Type */
+#define			AT91_MATRIX_ULBT_INFINITE	(0 << 0)
+#define			AT91_MATRIX_ULBT_SINGLE		(1 << 0)
+#define			AT91_MATRIX_ULBT_FOUR		(2 << 0)
+#define			AT91_MATRIX_ULBT_EIGHT		(3 << 0)
+#define			AT91_MATRIX_ULBT_SIXTEEN	(4 << 0)
+
+#define AT91_MATRIX_SCFG0	(AT91_MATRIX + 0x40)	/* Slave Configuration Register 0 */
+#define AT91_MATRIX_SCFG1	(AT91_MATRIX + 0x44)	/* Slave Configuration Register 1 */
+#define AT91_MATRIX_SCFG2	(AT91_MATRIX + 0x48)	/* Slave Configuration Register 2 */
+#define AT91_MATRIX_SCFG3	(AT91_MATRIX + 0x4C)	/* Slave Configuration Register 3 */
+#define AT91_MATRIX_SCFG4	(AT91_MATRIX + 0x50)	/* Slave Configuration Register 4 */
+#define AT91_MATRIX_SCFG5	(AT91_MATRIX + 0x54)	/* Slave Configuration Register 5 */
+#define AT91_MATRIX_SCFG6	(AT91_MATRIX + 0x58)	/* Slave Configuration Register 6 */
+#define AT91_MATRIX_SCFG7	(AT91_MATRIX + 0x5C)	/* Slave Configuration Register 7 */
+#define AT91_MATRIX_SCFG8	(AT91_MATRIX + 0x60)	/* Slave Configuration Register 8 */
+#define AT91_MATRIX_SCFG9	(AT91_MATRIX + 0x64)	/* Slave Configuration Register 9 */
+#define		AT91_MATRIX_SLOT_CYCLE		(0xff << 0)	/* Maximum Number of Allowed Cycles for a Burst */
+#define		AT91_MATRIX_DEFMSTR_TYPE	(3    << 16)	/* Default Master Type */
+#define			AT91_MATRIX_DEFMSTR_TYPE_NONE	(0 << 16)
+#define			AT91_MATRIX_DEFMSTR_TYPE_LAST	(1 << 16)
+#define			AT91_MATRIX_DEFMSTR_TYPE_FIXED	(2 << 16)
+#define		AT91_MATRIX_FIXED_DEFMSTR	(0xf  << 18)	/* Fixed Index of Default Master */
+#define		AT91_MATRIX_ARBT		(3    << 24)	/* Arbitration Type */
+#define			AT91_MATRIX_ARBT_ROUND_ROBIN	(0 << 24)
+#define			AT91_MATRIX_ARBT_FIXED_PRIORITY	(1 << 24)
+
+#define AT91_MATRIX_PRAS0	(AT91_MATRIX + 0x80)	/* Priority Register A for Slave 0 */
+#define AT91_MATRIX_PRBS0	(AT91_MATRIX + 0x84)	/* Priority Register B for Slave 0 */
+#define AT91_MATRIX_PRAS1	(AT91_MATRIX + 0x88)	/* Priority Register A for Slave 1 */
+#define AT91_MATRIX_PRBS1	(AT91_MATRIX + 0x8C)	/* Priority Register B for Slave 1 */
+#define AT91_MATRIX_PRAS2	(AT91_MATRIX + 0x90)	/* Priority Register A for Slave 2 */
+#define AT91_MATRIX_PRBS2	(AT91_MATRIX + 0x94)	/* Priority Register B for Slave 2 */
+#define AT91_MATRIX_PRAS3	(AT91_MATRIX + 0x98)	/* Priority Register A for Slave 3 */
+#define AT91_MATRIX_PRBS3	(AT91_MATRIX + 0x9C)	/* Priority Register B for Slave 3 */
+#define AT91_MATRIX_PRAS4	(AT91_MATRIX + 0xA0)	/* Priority Register A for Slave 4 */
+#define AT91_MATRIX_PRBS4	(AT91_MATRIX + 0xA4)	/* Priority Register B for Slave 4 */
+#define AT91_MATRIX_PRAS5	(AT91_MATRIX + 0xA8)	/* Priority Register A for Slave 5 */
+#define AT91_MATRIX_PRBS5	(AT91_MATRIX + 0xAC)	/* Priority Register B for Slave 5 */
+#define AT91_MATRIX_PRAS6	(AT91_MATRIX + 0xB0)	/* Priority Register A for Slave 6 */
+#define AT91_MATRIX_PRBS6	(AT91_MATRIX + 0xB4)	/* Priority Register B for Slave 6 */
+#define AT91_MATRIX_PRAS7	(AT91_MATRIX + 0xB8)	/* Priority Register A for Slave 7 */
+#define AT91_MATRIX_PRBS7	(AT91_MATRIX + 0xBC)	/* Priority Register B for Slave 7 */
+#define AT91_MATRIX_PRAS8	(AT91_MATRIX + 0xC0)	/* Priority Register A for Slave 8 */
+#define AT91_MATRIX_PRBS8	(AT91_MATRIX + 0xC4)	/* Priority Register B for Slave 8 */
+#define AT91_MATRIX_PRAS9	(AT91_MATRIX + 0xC8)	/* Priority Register A for Slave 9 */
+#define AT91_MATRIX_PRBS9	(AT91_MATRIX + 0xCC)	/* Priority Register B for Slave 9 */
+#define		AT91_MATRIX_M0PR		(3 << 0)	/* Master 0 Priority */
+#define		AT91_MATRIX_M1PR		(3 << 4)	/* Master 1 Priority */
+#define		AT91_MATRIX_M2PR		(3 << 8)	/* Master 2 Priority */
+#define		AT91_MATRIX_M3PR		(3 << 12)	/* Master 3 Priority */
+#define		AT91_MATRIX_M4PR		(3 << 16)	/* Master 4 Priority */
+#define		AT91_MATRIX_M5PR		(3 << 20)	/* Master 5 Priority */
+#define		AT91_MATRIX_M6PR		(3 << 24)	/* Master 6 Priority */
+#define		AT91_MATRIX_M7PR		(3 << 28)	/* Master 7 Priority */
+#define		AT91_MATRIX_M8PR		(3 << 0)	/* Master 8 Priority (in Register B) */
+#define		AT91_MATRIX_M9PR		(3 << 4)	/* Master 9 Priority (in Register B) */
+#define		AT91_MATRIX_M10PR		(3 << 8)	/* Master 10 Priority (in Register B) */
+#define		AT91_MATRIX_M11PR		(3 << 12)	/* Master 11 Priority (in Register B) */
+
+#define AT91_MATRIX_MRCR	(AT91_MATRIX + 0x100)	/* Master Remap Control Register */
+#define		AT91_MATRIX_RCB0		(1 << 0)	/* Remap Command for AHB Master 0 (ARM926EJ-S Instruction Master) */
+#define		AT91_MATRIX_RCB1		(1 << 1)	/* Remap Command for AHB Master 1 (ARM926EJ-S Data Master) */
+#define		AT91_MATRIX_RCB2		(1 << 2)
+#define		AT91_MATRIX_RCB3		(1 << 3)
+#define		AT91_MATRIX_RCB4		(1 << 4)
+#define		AT91_MATRIX_RCB5		(1 << 5)
+#define		AT91_MATRIX_RCB6		(1 << 6)
+#define		AT91_MATRIX_RCB7		(1 << 7)
+#define		AT91_MATRIX_RCB8		(1 << 8)
+#define		AT91_MATRIX_RCB9		(1 << 9)
+#define		AT91_MATRIX_RCB10		(1 << 10)
+#define		AT91_MATRIX_RCB11		(1 << 11)
+
+#define AT91_MPBS0_SFR		(AT91_MATRIX + 0x114)	/* MPBlock Slave 0 Special Function Register */
+#define AT91_MPBS1_SFR		(AT91_MATRIX + 0x11C)	/* MPBlock Slave 1 Special Function Register */
+
+#define AT91_MATRIX_EBICSA	(AT91_MATRIX + 0x120)	/* EBI Chip Select Assignment Register */
+#define		AT91_MATRIX_EBI_CS1A		(1 << 1)	/* Chip Select 1 Assignment */
+#define			AT91_MATRIX_EBI_CS1A_SMC		(0 << 1)
+#define			AT91_MATRIX_EBI_CS1A_BCRAMC		(1 << 1)
+#define		AT91_MATRIX_EBI_CS3A		(1 << 3)	/* Chip Select 3 Assignment */
+#define			AT91_MATRIX_EBI_CS3A_SMC		(0 << 3)
+#define			AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA	(1 << 3)
+#define		AT91_MATRIX_EBI_CS4A		(1 << 4)	/* Chip Select 4 Assignment */
+#define			AT91_MATRIX_EBI_CS4A_SMC		(0 << 4)
+#define			AT91_MATRIX_EBI_CS4A_SMC_CF1		(1 << 4)
+#define		AT91_MATRIX_EBI_CS5A		(1 << 5)	/* Chip Select 5 Assignment */
+#define			AT91_MATRIX_EBI_CS5A_SMC		(0 << 5)
+#define			AT91_MATRIX_EBI_CS5A_SMC_CF2		(1 << 5)
+#define		AT91_MATRIX_EBI_DBPUC		(1 << 8)	/* Data Bus Pull-up Configuration */
+#define		AT91_MATRIX_EBI_DQSPDC		(1 << 9)	/* Data Qualifier Strobe Pull-Down Configuration */
+#define		AT91_MATRIX_EBI_VDDIOMSEL	(1 << 16)	/* Memory voltage selection */
+#define			AT91_MATRIX_EBI_VDDIOMSEL_1_8V		(0 << 16)
+#define			AT91_MATRIX_EBI_VDDIOMSEL_3_3V		(1 << 16)
+
+#define AT91_MPBS2_SFR		(AT91_MATRIX + 0x12C)	/* MPBlock Slave 2 Special Function Register */
+#define AT91_MPBS3_SFR		(AT91_MATRIX + 0x130)	/* MPBlock Slave 3 Special Function Register */
+#define AT91_APB_SFR		(AT91_MATRIX + 0x134)	/* APB Bridge Special Function Register */
+
+#endif
diff --git a/include/asm-arm/arch-at91/at91sam9263_matrix.h b/include/asm-arm/arch-at91/at91sam9263_matrix.h
index 6fc6e4be624e..72f6e668e414 100644
--- a/include/asm-arm/arch-at91/at91sam9263_matrix.h
+++ b/include/asm-arm/arch-at91/at91sam9263_matrix.h
@@ -44,7 +44,7 @@
 #define			AT91_MATRIX_DEFMSTR_TYPE_NONE	(0 << 16)
 #define			AT91_MATRIX_DEFMSTR_TYPE_LAST	(1 << 16)
 #define			AT91_MATRIX_DEFMSTR_TYPE_FIXED	(2 << 16)
-#define		AT91_MATRIX_FIXED_DEFMSTR	(7    << 18)	/* Fixed Index of Default Master */
+#define		AT91_MATRIX_FIXED_DEFMSTR	(0xf  << 18)	/* Fixed Index of Default Master */
 #define		AT91_MATRIX_ARBT		(3    << 24)	/* Arbitration Type */
 #define			AT91_MATRIX_ARBT_ROUND_ROBIN	(0 << 24)
 #define			AT91_MATRIX_ARBT_FIXED_PRIORITY	(1 << 24)
diff --git a/include/asm-arm/arch-at91/at91sam9rl_matrix.h b/include/asm-arm/arch-at91/at91sam9rl_matrix.h
index b15f11b7c08d..84224174e6a1 100644
--- a/include/asm-arm/arch-at91/at91sam9rl_matrix.h
+++ b/include/asm-arm/arch-at91/at91sam9rl_matrix.h
@@ -38,7 +38,7 @@
 #define			AT91_MATRIX_DEFMSTR_TYPE_NONE	(0 << 16)
 #define			AT91_MATRIX_DEFMSTR_TYPE_LAST	(1 << 16)
 #define			AT91_MATRIX_DEFMSTR_TYPE_FIXED	(2 << 16)
-#define		AT91_MATRIX_FIXED_DEFMSTR	(7    << 18)	/* Fixed Index of Default Master */
+#define		AT91_MATRIX_FIXED_DEFMSTR	(0xf  << 18)	/* Fixed Index of Default Master */
 #define		AT91_MATRIX_ARBT		(3    << 24)	/* Arbitration Type */
 #define			AT91_MATRIX_ARBT_ROUND_ROBIN	(0 << 24)
 #define			AT91_MATRIX_ARBT_FIXED_PRIORITY	(1 << 24)
diff --git a/include/asm-arm/arch-at91/board.h b/include/asm-arm/arch-at91/board.h
index e88ad8621c17..55b07bd5316c 100644
--- a/include/asm-arm/arch-at91/board.h
+++ b/include/asm-arm/arch-at91/board.h
@@ -72,7 +72,7 @@ struct at91_eth_data {
 };
 extern void __init at91_add_device_eth(struct at91_eth_data *data);
 
-#if defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9263)
+#if defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9263) || defined(CONFIG_ARCH_AT91CAP9)
 #define eth_platform_data	at91_eth_data
 #endif
 
diff --git a/include/asm-arm/arch-at91/cpu.h b/include/asm-arm/arch-at91/cpu.h
index 080cbb401a87..7145166826a2 100644
--- a/include/asm-arm/arch-at91/cpu.h
+++ b/include/asm-arm/arch-at91/cpu.h
@@ -21,13 +21,13 @@
 #define ARCH_ID_AT91SAM9260	0x019803a0
 #define ARCH_ID_AT91SAM9261	0x019703a0
 #define ARCH_ID_AT91SAM9263	0x019607a0
+#define ARCH_ID_AT91SAM9RL64	0x019b03a0
+#define ARCH_ID_AT91CAP9	0x039A03A0
 
 #define ARCH_ID_AT91SAM9XE128	0x329973a0
 #define ARCH_ID_AT91SAM9XE256	0x329a93a0
 #define ARCH_ID_AT91SAM9XE512	0x329aa3a0
 
-#define ARCH_ID_AT91SAM9RL64	0x019b03a0
-
 #define ARCH_ID_AT91M40800	0x14080044
 #define ARCH_ID_AT91R40807	0x44080746
 #define ARCH_ID_AT91M40807	0x14080745
@@ -81,6 +81,11 @@ static inline unsigned long at91_arch_identify(void)
 #define cpu_is_at91sam9rl()	(0)
 #endif
 
+#ifdef CONFIG_ARCH_AT91CAP9
+#define cpu_is_at91cap9()	(at91_cpu_identify() == ARCH_ID_AT91CAP9)
+#else
+#define cpu_is_at91cap9()	(0)
+#endif
 
 /*
  * Since this is ARM, we will never run on any AVR32 CPU. But these
diff --git a/include/asm-arm/arch-at91/hardware.h b/include/asm-arm/arch-at91/hardware.h
index 8f1cdd38a969..2c826d8247a3 100644
--- a/include/asm-arm/arch-at91/hardware.h
+++ b/include/asm-arm/arch-at91/hardware.h
@@ -26,6 +26,8 @@
 #include <asm/arch/at91sam9263.h>
 #elif defined(CONFIG_ARCH_AT91SAM9RL)
 #include <asm/arch/at91sam9rl.h>
+#elif defined(CONFIG_ARCH_AT91CAP9)
+#include <asm/arch/at91cap9.h>
 #elif defined(CONFIG_ARCH_AT91X40)
 #include <asm/arch/at91x40.h>
 #else
diff --git a/include/asm-arm/arch-at91/timex.h b/include/asm-arm/arch-at91/timex.h
index a310698fb4da..f1933b0fa43f 100644
--- a/include/asm-arm/arch-at91/timex.h
+++ b/include/asm-arm/arch-at91/timex.h
@@ -42,6 +42,11 @@
 #define AT91SAM9_MASTER_CLOCK	100000000
 #define CLOCK_TICK_RATE		(AT91SAM9_MASTER_CLOCK/16)
 
+#elif defined(CONFIG_ARCH_AT91CAP9)
+
+#define AT91CAP9_MASTER_CLOCK	100000000
+#define CLOCK_TICK_RATE		(AT91CAP9_MASTER_CLOCK/16)
+
 #elif defined(CONFIG_ARCH_AT91X40)
 
 #define AT91X40_MASTER_CLOCK	40000000
diff --git a/include/asm-avr32/arch-at32ap/cpu.h b/include/asm-avr32/arch-at32ap/cpu.h
index 0dc20261c1ea..44d0bfa1f409 100644
--- a/include/asm-avr32/arch-at32ap/cpu.h
+++ b/include/asm-avr32/arch-at32ap/cpu.h
@@ -30,5 +30,6 @@
 #define cpu_is_at91sam9261()	(0)
 #define cpu_is_at91sam9263()	(0)
 #define cpu_is_at91sam9rl()	(0)
+#define cpu_is_at91cap9()	(0)
 
 #endif /* __ASM_ARCH_CPU_H */
-- 
cgit v1.2.3-59-g8ed1b


From 86640cae60147b0cd2705145de8067e24db70a8b Mon Sep 17 00:00:00 2001
From: Andrew Victor <linux@maxim.org.za>
Date: Thu, 24 Jan 2008 15:16:41 +0100
Subject: [ARM] 4765/1: [AT91] AT91CAP9A-DK board support

Add support for the Atmel AT91CAP9A-DK Evaluation Kit board.

Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/configs/at91cap9adk_defconfig | 1143 ++++++++++++++++++++++++++++++++
 arch/arm/mach-at91/Kconfig             |   19 +-
 arch/arm/mach-at91/Makefile            |    3 +
 arch/arm/mach-at91/board-cap9adk.c     |  359 ++++++++++
 4 files changed, 1522 insertions(+), 2 deletions(-)
 create mode 100644 arch/arm/configs/at91cap9adk_defconfig
 create mode 100644 arch/arm/mach-at91/board-cap9adk.c

(limited to 'arch')

diff --git a/arch/arm/configs/at91cap9adk_defconfig b/arch/arm/configs/at91cap9adk_defconfig
new file mode 100644
index 000000000000..e32e73648129
--- /dev/null
+++ b/arch/arm/configs/at91cap9adk_defconfig
@@ -0,0 +1,1143 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.24-rc8
+# Wed Jan 23 22:55:57 2008
+#
+CONFIG_ARM=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+CONFIG_GENERIC_GPIO=y
+# CONFIG_GENERIC_TIME is not set
+# CONFIG_GENERIC_CLOCKEVENTS is not set
+CONFIG_MMU=y
+# CONFIG_NO_IOPORT is not set
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_ZONE_DMA=y
+CONFIG_VECTORS_BASE=0xffff0000
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+# CONFIG_LOCALVERSION_AUTO is not set
+# CONFIG_SWAP is not set
+CONFIG_SYSVIPC=y
+CONFIG_SYSVIPC_SYSCTL=y
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL=y
+# CONFIG_EMBEDDED is not set
+CONFIG_UID16=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_ALL is not set
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+CONFIG_SLABINFO=y
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+CONFIG_KMOD=y
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+CONFIG_DEFAULT_AS=y
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="anticipatory"
+
+#
+# System Type
+#
+# CONFIG_ARCH_AAEC2000 is not set
+# CONFIG_ARCH_INTEGRATOR is not set
+# CONFIG_ARCH_REALVIEW is not set
+# CONFIG_ARCH_VERSATILE is not set
+CONFIG_ARCH_AT91=y
+# CONFIG_ARCH_CLPS7500 is not set
+# CONFIG_ARCH_CLPS711X is not set
+# CONFIG_ARCH_CO285 is not set
+# CONFIG_ARCH_EBSA110 is not set
+# CONFIG_ARCH_EP93XX is not set
+# CONFIG_ARCH_FOOTBRIDGE is not set
+# CONFIG_ARCH_NETX is not set
+# CONFIG_ARCH_H720X is not set
+# CONFIG_ARCH_IMX is not set
+# CONFIG_ARCH_IOP13XX is not set
+# CONFIG_ARCH_IOP32X is not set
+# CONFIG_ARCH_IOP33X is not set
+# CONFIG_ARCH_IXP23XX is not set
+# CONFIG_ARCH_IXP2000 is not set
+# CONFIG_ARCH_IXP4XX is not set
+# CONFIG_ARCH_L7200 is not set
+# CONFIG_ARCH_KS8695 is not set
+# CONFIG_ARCH_NS9XXX is not set
+# CONFIG_ARCH_MXC is not set
+# CONFIG_ARCH_PNX4008 is not set
+# CONFIG_ARCH_PXA is not set
+# CONFIG_ARCH_RPC is not set
+# CONFIG_ARCH_SA1100 is not set
+# CONFIG_ARCH_S3C2410 is not set
+# CONFIG_ARCH_SHARK is not set
+# CONFIG_ARCH_LH7A40X is not set
+# CONFIG_ARCH_DAVINCI is not set
+# CONFIG_ARCH_OMAP is not set
+
+#
+# Boot options
+#
+
+#
+# Power management
+#
+
+#
+# Atmel AT91 System-on-Chip
+#
+# CONFIG_ARCH_AT91RM9200 is not set
+# CONFIG_ARCH_AT91SAM9260 is not set
+# CONFIG_ARCH_AT91SAM9261 is not set
+# CONFIG_ARCH_AT91SAM9263 is not set
+# CONFIG_ARCH_AT91SAM9RL is not set
+CONFIG_ARCH_AT91CAP9=y
+# CONFIG_ARCH_AT91X40 is not set
+CONFIG_AT91_PMC_UNIT=y
+
+#
+# AT91CAP9 Board Type
+#
+CONFIG_MACH_AT91CAP9ADK=y
+
+#
+# AT91 Board Options
+#
+CONFIG_MTD_AT91_DATAFLASH_CARD=y
+# CONFIG_MTD_NAND_AT91_BUSWIDTH_16 is not set
+
+#
+# AT91 Feature Selections
+#
+CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
+CONFIG_AT91_TIMER_HZ=100
+
+#
+# Processor Type
+#
+CONFIG_CPU_32=y
+CONFIG_CPU_ARM926T=y
+CONFIG_CPU_32v5=y
+CONFIG_CPU_ABRT_EV5TJ=y
+CONFIG_CPU_CACHE_VIVT=y
+CONFIG_CPU_COPY_V4WB=y
+CONFIG_CPU_TLB_V4WBI=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+
+#
+# Processor Features
+#
+# CONFIG_ARM_THUMB is not set
+# CONFIG_CPU_ICACHE_DISABLE is not set
+# CONFIG_CPU_DCACHE_DISABLE is not set
+# CONFIG_CPU_DCACHE_WRITETHROUGH is not set
+# CONFIG_CPU_CACHE_ROUND_ROBIN is not set
+# CONFIG_OUTER_CACHE is not set
+
+#
+# Bus support
+#
+# CONFIG_PCI_SYSCALL is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+# CONFIG_PCCARD is not set
+
+#
+# Kernel Features
+#
+# CONFIG_TICK_ONESHOT is not set
+# CONFIG_PREEMPT is not set
+# CONFIG_NO_IDLE_HZ is not set
+CONFIG_HZ=100
+CONFIG_AEABI=y
+CONFIG_OABI_COMPAT=y
+# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4096
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_BOUNCE=y
+CONFIG_VIRT_TO_BUS=y
+CONFIG_LEDS=y
+CONFIG_LEDS_TIMER=y
+CONFIG_LEDS_CPU=y
+CONFIG_ALIGNMENT_TRAP=y
+
+#
+# Boot options
+#
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/ram0 rw"
+# CONFIG_XIP_KERNEL is not set
+# CONFIG_KEXEC is not set
+
+#
+# Floating point emulation
+#
+
+#
+# At least one emulation must be selected
+#
+CONFIG_FPE_NWFPE=y
+# CONFIG_FPE_NWFPE_XP is not set
+# CONFIG_FPE_FASTFPE is not set
+# CONFIG_VFP is not set
+
+#
+# Userspace binary formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Power management options
+#
+# CONFIG_PM is not set
+CONFIG_SUSPEND_UP_POSSIBLE=y
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+CONFIG_IP_PNP=y
+# CONFIG_IP_PNP_DHCP is not set
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_IP_PNP_RARP=y
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_FW_LOADER is not set
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+# CONFIG_MTD_AFS_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+CONFIG_MTD_CFI=y
+CONFIG_MTD_JEDECPROBE=y
+CONFIG_MTD_GEN_PROBE=y
+# CONFIG_MTD_CFI_ADV_OPTIONS is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_CFI_INTELEXT is not set
+CONFIG_MTD_CFI_AMDSTD=y
+# CONFIG_MTD_CFI_STAA is not set
+CONFIG_MTD_CFI_UTIL=y
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_START=0x0
+CONFIG_MTD_PHYSMAP_LEN=0x0
+CONFIG_MTD_PHYSMAP_BANKWIDTH=0
+# CONFIG_MTD_ARM_INTEGRATOR is not set
+# CONFIG_MTD_IMPA7 is not set
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+CONFIG_MTD_DATAFLASH=y
+# CONFIG_MTD_M25P80 is not set
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+CONFIG_MTD_NAND=y
+# CONFIG_MTD_NAND_VERIFY_WRITE is not set
+# CONFIG_MTD_NAND_ECC_SMC is not set
+# CONFIG_MTD_NAND_MUSEUM_IDS is not set
+CONFIG_MTD_NAND_IDS=y
+# CONFIG_MTD_NAND_DISKONCHIP is not set
+CONFIG_MTD_NAND_AT91=y
+# CONFIG_MTD_NAND_NANDSIM is not set
+# CONFIG_MTD_NAND_PLATFORM is not set
+# CONFIG_MTD_ALAUDA is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=y
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_UB is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=8192
+CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_EEPROM_93CX6 is not set
+CONFIG_ATMEL_SSC=y
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+CONFIG_SCSI=y
+CONFIG_SCSI_DMA=y
+# CONFIG_SCSI_TGT is not set
+# CONFIG_SCSI_NETLINK is not set
+CONFIG_SCSI_PROC_FS=y
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
+CONFIG_BLK_DEV_SD=y
+# CONFIG_CHR_DEV_ST is not set
+# CONFIG_CHR_DEV_OSST is not set
+# CONFIG_BLK_DEV_SR is not set
+# CONFIG_CHR_DEV_SG is not set
+# CONFIG_CHR_DEV_SCH is not set
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
+CONFIG_SCSI_MULTI_LUN=y
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+CONFIG_SCSI_WAIT_SCAN=m
+
+#
+# SCSI Transports
+#
+# CONFIG_SCSI_SPI_ATTRS is not set
+# CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+# CONFIG_SCSI_SRP_ATTRS is not set
+CONFIG_SCSI_LOWLEVEL=y
+# CONFIG_ISCSI_TCP is not set
+# CONFIG_SCSI_DEBUG is not set
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+CONFIG_PHYLIB=y
+
+#
+# MII PHY device drivers
+#
+# CONFIG_MARVELL_PHY is not set
+# CONFIG_DAVICOM_PHY is not set
+# CONFIG_QSEMI_PHY is not set
+# CONFIG_LXT_PHY is not set
+# CONFIG_CICADA_PHY is not set
+# CONFIG_VITESSE_PHY is not set
+# CONFIG_SMSC_PHY is not set
+# CONFIG_BROADCOM_PHY is not set
+# CONFIG_ICPLUS_PHY is not set
+# CONFIG_FIXED_PHY is not set
+# CONFIG_MDIO_BITBANG is not set
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+CONFIG_MACB=y
+# CONFIG_AX88796 is not set
+# CONFIG_SMC91X is not set
+# CONFIG_DM9000 is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+
+#
+# USB Network Adapters
+#
+# CONFIG_USB_CATC is not set
+# CONFIG_USB_KAWETH is not set
+# CONFIG_USB_PEGASUS is not set
+# CONFIG_USB_RTL8150 is not set
+# CONFIG_USB_USBNET is not set
+# CONFIG_WAN is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_JOYDEV is not set
+CONFIG_INPUT_EVDEV=y
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+CONFIG_INPUT_TOUCHSCREEN=y
+CONFIG_TOUCHSCREEN_ADS7846=y
+# CONFIG_TOUCHSCREEN_FUJITSU is not set
+# CONFIG_TOUCHSCREEN_GUNZE is not set
+# CONFIG_TOUCHSCREEN_ELO is not set
+# CONFIG_TOUCHSCREEN_MTOUCH is not set
+# CONFIG_TOUCHSCREEN_MK712 is not set
+# CONFIG_TOUCHSCREEN_PENMOUNT is not set
+# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
+# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
+# CONFIG_TOUCHSCREEN_UCB1400 is not set
+# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_ATMEL=y
+CONFIG_SERIAL_ATMEL_CONSOLE=y
+# CONFIG_SERIAL_ATMEL_TTYAT is not set
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+CONFIG_HW_RANDOM=y
+# CONFIG_NVRAM is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+CONFIG_I2C=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=y
+
+#
+# I2C Algorithms
+#
+# CONFIG_I2C_ALGOBIT is not set
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALGOPCA is not set
+
+#
+# I2C Hardware Bus support
+#
+# CONFIG_I2C_GPIO is not set
+# CONFIG_I2C_OCORES is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_TAOS_EVM is not set
+# CONFIG_I2C_STUB is not set
+# CONFIG_I2C_TINY_USB is not set
+
+#
+# Miscellaneous I2C Chip support
+#
+# CONFIG_SENSORS_DS1337 is not set
+# CONFIG_SENSORS_DS1374 is not set
+# CONFIG_DS1682 is not set
+# CONFIG_SENSORS_EEPROM is not set
+# CONFIG_SENSORS_PCF8574 is not set
+# CONFIG_SENSORS_PCA9539 is not set
+# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_MAX6875 is not set
+# CONFIG_SENSORS_TSL2550 is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
+# CONFIG_I2C_DEBUG_CHIP is not set
+
+#
+# SPI support
+#
+CONFIG_SPI=y
+# CONFIG_SPI_DEBUG is not set
+CONFIG_SPI_MASTER=y
+
+#
+# SPI Master Controller Drivers
+#
+CONFIG_SPI_ATMEL=y
+# CONFIG_SPI_BITBANG is not set
+
+#
+# SPI Protocol Masters
+#
+# CONFIG_SPI_AT25 is not set
+# CONFIG_SPI_SPIDEV is not set
+# CONFIG_SPI_TLE62X0 is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+CONFIG_WATCHDOG_NOWAYOUT=y
+
+#
+# Watchdog Device Drivers
+#
+# CONFIG_SOFT_WATCHDOG is not set
+
+#
+# USB-based Watchdog Cards
+#
+# CONFIG_USBPCWATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_DAB is not set
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+CONFIG_FB=y
+# CONFIG_FIRMWARE_EDID is not set
+# CONFIG_FB_DDC is not set
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_SYS_FOPS is not set
+CONFIG_FB_DEFERRED_IO=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+# CONFIG_FB_MODE_HELPERS is not set
+# CONFIG_FB_TILEBLITTING is not set
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_S1D13XXX is not set
+CONFIG_FB_ATMEL=y
+# CONFIG_FB_VIRTUAL is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Console display driver support
+#
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_DUMMY_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE is not set
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+CONFIG_LOGO_LINUX_VGA16=y
+# CONFIG_LOGO_LINUX_CLUT224 is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+CONFIG_HID_SUPPORT=y
+CONFIG_HID=y
+CONFIG_HID_DEBUG=y
+# CONFIG_HIDRAW is not set
+
+#
+# USB Input Devices
+#
+# CONFIG_USB_HID is not set
+
+#
+# USB HID Boot Protocol drivers
+#
+# CONFIG_USB_KBD is not set
+# CONFIG_USB_MOUSE is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+CONFIG_USB=y
+# CONFIG_USB_DEBUG is not set
+
+#
+# Miscellaneous USB options
+#
+CONFIG_USB_DEVICEFS=y
+CONFIG_USB_DEVICE_CLASS=y
+# CONFIG_USB_DYNAMIC_MINORS is not set
+# CONFIG_USB_OTG is not set
+
+#
+# USB Host Controller Drivers
+#
+# CONFIG_USB_ISP116X_HCD is not set
+CONFIG_USB_OHCI_HCD=y
+# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
+# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
+CONFIG_USB_OHCI_LITTLE_ENDIAN=y
+# CONFIG_USB_SL811_HCD is not set
+# CONFIG_USB_R8A66597_HCD is not set
+
+#
+# USB Device Class drivers
+#
+# CONFIG_USB_ACM is not set
+# CONFIG_USB_PRINTER is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# may also be needed; see USB_STORAGE Help for more information
+#
+CONFIG_USB_STORAGE=y
+# CONFIG_USB_STORAGE_DEBUG is not set
+# CONFIG_USB_STORAGE_DATAFAB is not set
+# CONFIG_USB_STORAGE_FREECOM is not set
+# CONFIG_USB_STORAGE_ISD200 is not set
+# CONFIG_USB_STORAGE_DPCM is not set
+# CONFIG_USB_STORAGE_USBAT is not set
+# CONFIG_USB_STORAGE_SDDR09 is not set
+# CONFIG_USB_STORAGE_SDDR55 is not set
+# CONFIG_USB_STORAGE_JUMPSHOT is not set
+# CONFIG_USB_STORAGE_ALAUDA is not set
+# CONFIG_USB_STORAGE_ONETOUCH is not set
+# CONFIG_USB_STORAGE_KARMA is not set
+# CONFIG_USB_LIBUSUAL is not set
+
+#
+# USB Imaging devices
+#
+# CONFIG_USB_MDC800 is not set
+# CONFIG_USB_MICROTEK is not set
+CONFIG_USB_MON=y
+
+#
+# USB port drivers
+#
+
+#
+# USB Serial Converter support
+#
+# CONFIG_USB_SERIAL is not set
+
+#
+# USB Miscellaneous drivers
+#
+# CONFIG_USB_EMI62 is not set
+# CONFIG_USB_EMI26 is not set
+# CONFIG_USB_ADUTUX is not set
+# CONFIG_USB_AUERSWALD is not set
+# CONFIG_USB_RIO500 is not set
+# CONFIG_USB_LEGOTOWER is not set
+# CONFIG_USB_LCD is not set
+# CONFIG_USB_BERRY_CHARGE is not set
+# CONFIG_USB_LED is not set
+# CONFIG_USB_CYPRESS_CY7C63 is not set
+# CONFIG_USB_CYTHERM is not set
+# CONFIG_USB_PHIDGET is not set
+# CONFIG_USB_IDMOUSE is not set
+# CONFIG_USB_FTDI_ELAN is not set
+# CONFIG_USB_APPLEDISPLAY is not set
+# CONFIG_USB_LD is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_IOWARRIOR is not set
+# CONFIG_USB_TEST is not set
+
+#
+# USB DSL modem support
+#
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+CONFIG_MMC=y
+# CONFIG_MMC_DEBUG is not set
+# CONFIG_MMC_UNSAFE_RESUME is not set
+
+#
+# MMC/SD Card Drivers
+#
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_BLOCK_BOUNCE=y
+# CONFIG_SDIO_UART is not set
+
+#
+# MMC/SD Host Controller Drivers
+#
+CONFIG_MMC_AT91=y
+# CONFIG_MMC_SPI is not set
+# CONFIG_NEW_LEDS is not set
+CONFIG_RTC_LIB=y
+# CONFIG_RTC_CLASS is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4DEV_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_QUOTA is not set
+CONFIG_DNOTIFY=y
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+CONFIG_FAT_FS=y
+# CONFIG_MSDOS_FS is not set
+CONFIG_VFAT_FS=y
+CONFIG_FAT_DEFAULT_CODEPAGE=437
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_FS_DEBUG=0
+CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
+# CONFIG_JFFS2_SUMMARY is not set
+# CONFIG_JFFS2_FS_XATTR is not set
+# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
+CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS2_LZO is not set
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
+CONFIG_CRAMFS=y
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_NFS_FS=y
+# CONFIG_NFS_V3 is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFS_DIRECTIO is not set
+# CONFIG_NFSD is not set
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_SUNRPC_BIND34 is not set
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+CONFIG_NLS=y
+CONFIG_NLS_DEFAULT="iso8859-1"
+CONFIG_NLS_CODEPAGE_437=y
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+CONFIG_NLS_CODEPAGE_850=y
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+# CONFIG_NLS_ASCII is not set
+CONFIG_NLS_ISO8859_1=y
+# CONFIG_NLS_ISO8859_2 is not set
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+# CONFIG_NLS_ISO8859_15 is not set
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+# CONFIG_NLS_UTF8 is not set
+# CONFIG_DLM is not set
+CONFIG_INSTRUMENTATION=y
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_UNUSED_SYMBOLS is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
+# CONFIG_SCHEDSTATS is not set
+# CONFIG_TIMER_STATS is not set
+# CONFIG_DEBUG_SLAB is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_LOCK_ALLOC is not set
+# CONFIG_PROVE_LOCKING is not set
+# CONFIG_LOCK_STAT is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_INFO=y
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
+CONFIG_FRAME_POINTER=y
+CONFIG_FORCED_INLINING=y
+# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_SAMPLES is not set
+CONFIG_DEBUG_USER=y
+# CONFIG_DEBUG_ERRORS is not set
+# CONFIG_DEBUG_LL is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index d12c616407d6..5b0422cdde76 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -181,6 +181,21 @@ endif
 
 # ----------------------------------------------------------
 
+if ARCH_AT91CAP9
+
+comment "AT91CAP9 Board Type"
+
+config MACH_AT91CAP9ADK
+	bool "Atmel AT91CAP9A-DK Evaluation Kit"
+	depends on ARCH_AT91CAP9
+	help
+	  Select this if you are using Atmel's AT91CAP9A-DK Evaluation Kit.
+	  <http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4138>
+
+endif
+
+# ----------------------------------------------------------
+
 if ARCH_AT91X40
 
 comment "AT91X40 Board Type"
@@ -201,13 +216,13 @@ comment "AT91 Board Options"
 
 config MTD_AT91_DATAFLASH_CARD
 	bool "Enable DataFlash Card support"
-	depends on (ARCH_AT91RM9200DK || MACH_AT91RM9200EK || MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9263EK)
+	depends on (ARCH_AT91RM9200DK || MACH_AT91RM9200EK || MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9263EK || MACH_AT91CAP9ADK)
 	help
 	  Enable support for the DataFlash card.
 
 config MTD_NAND_AT91_BUSWIDTH_16
 	bool "Enable 16-bit data bus interface to NAND flash"
-	depends on (MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9263EK)
+	depends on (MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9263EK || MACH_AT91CAP9ADK)
 	help
 	  On AT91SAM926x boards both types of NAND flash can be present
 	  (8 and 16 bit data bus width).
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 10413c5d3f8a..bf5f293dccf8 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -42,6 +42,9 @@ obj-$(CONFIG_MACH_AT91SAM9263EK) += board-sam9263ek.o
 # AT91SAM9RL board-specific support
 obj-$(CONFIG_MACH_AT91SAM9RLEK)	+= board-sam9rlek.o
 
+# AT91CAP9 board-specific support
+obj-$(CONFIG_MACH_AT91CAP9ADK)	+= board-cap9adk.o
+
 # AT91X40 board-specific support
 obj-$(CONFIG_MACH_AT91EB01)	+= board-eb01.o
 
diff --git a/arch/arm/mach-at91/board-cap9adk.c b/arch/arm/mach-at91/board-cap9adk.c
new file mode 100644
index 000000000000..185437131541
--- /dev/null
+++ b/arch/arm/mach-at91/board-cap9adk.c
@@ -0,0 +1,359 @@
+/*
+ * linux/arch/arm/mach-at91/board-cap9adk.c
+ *
+ *  Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
+ *  Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
+ *  Copyright (C) 2005 SAN People
+ *  Copyright (C) 2007 Atmel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/ads7846.h>
+#include <linux/fb.h>
+#include <linux/mtd/physmap.h>
+
+#include <video/atmel_lcdc.h>
+
+#include <asm/hardware.h>
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/arch/board.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/at91cap9_matrix.h>
+#include <asm/arch/at91sam926x_mc.h>
+
+#include "generic.h"
+
+
+static void __init cap9adk_map_io(void)
+{
+	/* Initialize processor: 12 MHz crystal */
+	at91cap9_initialize(12000000);
+
+	/* Setup the LEDs: USER1 and USER2 LED for cpu/timer... */
+	at91_init_leds(AT91_PIN_PA10, AT91_PIN_PA11);
+	/* ... POWER LED always on */
+	at91_set_gpio_output(AT91_PIN_PC29, 1);
+
+	/* Setup the serial ports and console */
+	at91_register_uart(0, 0, 0);		/* DBGU = ttyS0 */
+	at91_set_serial_console(0);
+}
+
+static void __init cap9adk_init_irq(void)
+{
+	at91cap9_init_interrupts(NULL);
+}
+
+
+/*
+ * USB Host port
+ */
+static struct at91_usbh_data __initdata cap9adk_usbh_data = {
+	.ports		= 2,
+};
+
+
+/*
+ * ADS7846 Touchscreen
+ */
+#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
+static int ads7843_pendown_state(void)
+{
+	return !at91_get_gpio_value(AT91_PIN_PC4);	/* Touchscreen PENIRQ */
+}
+
+static struct ads7846_platform_data ads_info = {
+	.model			= 7843,
+	.x_min			= 150,
+	.x_max			= 3830,
+	.y_min			= 190,
+	.y_max			= 3830,
+	.vref_delay_usecs	= 100,
+	.x_plate_ohms		= 450,
+	.y_plate_ohms		= 250,
+	.pressure_max		= 15000,
+	.debounce_max		= 1,
+	.debounce_rep		= 0,
+	.debounce_tol		= (~0),
+	.get_pendown_state	= ads7843_pendown_state,
+};
+
+static void __init cap9adk_add_device_ts(void)
+{
+	at91_set_gpio_input(AT91_PIN_PC4, 1);	/* Touchscreen PENIRQ */
+	at91_set_gpio_input(AT91_PIN_PC5, 1);	/* Touchscreen BUSY */
+}
+#else
+static void __init cap9adk_add_device_ts(void) {}
+#endif
+
+
+/*
+ * SPI devices.
+ */
+static struct spi_board_info cap9adk_spi_devices[] = {
+#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
+	{	/* DataFlash card */
+		.modalias	= "mtd_dataflash",
+		.chip_select	= 0,
+		.max_speed_hz	= 15 * 1000 * 1000,
+		.bus_num	= 0,
+	},
+#endif
+#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
+	{
+		.modalias	= "ads7846",
+		.chip_select	= 3,		/* can be 2 or 3, depending on J2 jumper */
+		.max_speed_hz	= 125000 * 26,	/* (max sample rate @ 3V) * (cmd + data + overhead) */
+		.bus_num	= 0,
+		.platform_data	= &ads_info,
+		.irq		= AT91_PIN_PC4,
+	},
+#endif
+};
+
+
+/*
+ * MCI (SD/MMC)
+ */
+static struct at91_mmc_data __initdata cap9adk_mmc_data = {
+	.wire4		= 1,
+//	.det_pin	= ... not connected
+//	.wp_pin		= ... not connected
+//	.vcc_pin	= ... not connected
+};
+
+
+/*
+ * MACB Ethernet device
+ */
+static struct at91_eth_data __initdata cap9adk_macb_data = {
+	.is_rmii	= 1,
+};
+
+
+/*
+ * NAND flash
+ */
+static struct mtd_partition __initdata cap9adk_nand_partitions[] = {
+	{
+		.name	= "NAND partition",
+		.offset	= 0,
+		.size	= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
+{
+	*num_partitions = ARRAY_SIZE(cap9adk_nand_partitions);
+	return cap9adk_nand_partitions;
+}
+
+static struct at91_nand_data __initdata cap9adk_nand_data = {
+	.ale		= 21,
+	.cle		= 22,
+//	.det_pin	= ... not connected
+//	.rdy_pin	= ... not connected
+	.enable_pin	= AT91_PIN_PD15,
+	.partition_info	= nand_partitions,
+#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
+	.bus_width_16	= 1,
+#else
+	.bus_width_16	= 0,
+#endif
+};
+
+
+/*
+ * NOR flash
+ */
+static struct mtd_partition cap9adk_nor_partitions[] = {
+	{
+		.name		= "NOR partition",
+		.offset		= 0,
+		.size		= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct physmap_flash_data cap9adk_nor_data = {
+	.width		= 2,
+	.parts		= cap9adk_nor_partitions,
+	.nr_parts	= ARRAY_SIZE(cap9adk_nor_partitions),
+};
+
+#define NOR_BASE	AT91_CHIPSELECT_0
+#define NOR_SIZE	0x800000
+
+static struct resource nor_flash_resources[] = {
+	{
+		.start	= NOR_BASE,
+		.end	= NOR_BASE + NOR_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device cap9adk_nor_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+				.platform_data	= &cap9adk_nor_data,
+	},
+	.resource	= nor_flash_resources,
+	.num_resources	= ARRAY_SIZE(nor_flash_resources),
+};
+
+static __init void cap9adk_add_device_nor(void)
+{
+	unsigned long csa;
+
+	csa = at91_sys_read(AT91_MATRIX_EBICSA);
+	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
+
+	/* set the bus interface characteristics */
+	at91_sys_write(AT91_SMC_SETUP(0), AT91_SMC_NWESETUP_(4) | AT91_SMC_NCS_WRSETUP_(2)
+			| AT91_SMC_NRDSETUP_(4) | AT91_SMC_NCS_RDSETUP_(2));
+
+	at91_sys_write(AT91_SMC_PULSE(0), AT91_SMC_NWEPULSE_(8) | AT91_SMC_NCS_WRPULSE_(10)
+			| AT91_SMC_NRDPULSE_(8) | AT91_SMC_NCS_RDPULSE_(10));
+
+	at91_sys_write(AT91_SMC_CYCLE(0), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
+
+	at91_sys_write(AT91_SMC_MODE(0), AT91_SMC_READMODE | AT91_SMC_WRITEMODE
+			| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
+			| AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
+
+	platform_device_register(&cap9adk_nor_flash);
+}
+
+
+/*
+ * LCD Controller
+ */
+#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
+static struct fb_videomode at91_tft_vga_modes[] = {
+	{
+	        .name           = "TX09D50VM1CCA @ 60",
+		.refresh	= 60,
+		.xres		= 240,		.yres		= 320,
+		.pixclock	= KHZ2PICOS(4965),
+
+		.left_margin	= 1,		.right_margin	= 33,
+		.upper_margin	= 1,		.lower_margin	= 0,
+		.hsync_len	= 5,		.vsync_len	= 1,
+
+		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+		.vmode		= FB_VMODE_NONINTERLACED,
+	},
+};
+
+static struct fb_monspecs at91fb_default_monspecs = {
+	.manufacturer	= "HIT",
+	.monitor        = "TX09D70VM1CCA",
+
+	.modedb		= at91_tft_vga_modes,
+	.modedb_len	= ARRAY_SIZE(at91_tft_vga_modes),
+	.hfmin		= 15000,
+	.hfmax		= 64000,
+	.vfmin		= 50,
+	.vfmax		= 150,
+};
+
+#define AT91CAP9_DEFAULT_LCDCON2 	(ATMEL_LCDC_MEMOR_LITTLE \
+					| ATMEL_LCDC_DISTYPE_TFT    \
+					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
+
+static void at91_lcdc_power_control(int on)
+{
+	if (on)
+		at91_set_gpio_value(AT91_PIN_PC0, 0);	/* power up */
+	else
+		at91_set_gpio_value(AT91_PIN_PC0, 1);	/* power down */
+}
+
+/* Driver datas */
+static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data = {
+	.default_bpp			= 16,
+	.default_dmacon			= ATMEL_LCDC_DMAEN,
+	.default_lcdcon2		= AT91CAP9_DEFAULT_LCDCON2,
+	.default_monspecs		= &at91fb_default_monspecs,
+	.atmel_lcdfb_power_control	= at91_lcdc_power_control,
+	.guard_time			= 1,
+};
+
+#else
+static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data;
+#endif
+
+
+/*
+ * AC97
+ */
+static struct atmel_ac97_data cap9adk_ac97_data = {
+//	.reset_pin	= ... not connected
+};
+
+
+static void __init cap9adk_board_init(void)
+{
+	/* Serial */
+	at91_add_device_serial();
+	/* USB Host */
+	set_irq_type(AT91CAP9_ID_UHP, IRQT_HIGH);
+	at91_add_device_usbh(&cap9adk_usbh_data);
+	/* SPI */
+	at91_add_device_spi(cap9adk_spi_devices, ARRAY_SIZE(cap9adk_spi_devices));
+	/* Touchscreen */
+	cap9adk_add_device_ts();
+	/* MMC */
+	at91_add_device_mmc(1, &cap9adk_mmc_data);
+	/* Ethernet */
+	at91_add_device_eth(&cap9adk_macb_data);
+	/* NAND */
+	at91_add_device_nand(&cap9adk_nand_data);
+	/* NOR Flash */
+	cap9adk_add_device_nor();
+	/* I2C */
+	at91_add_device_i2c(NULL, 0);
+	/* LCD Controller */
+	set_irq_type(AT91CAP9_ID_LCDC, IRQT_HIGH);
+	at91_add_device_lcdc(&cap9adk_lcdc_data);
+	/* AC97 */
+	at91_add_device_ac97(&cap9adk_ac97_data);
+}
+
+MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK")
+	/* Maintainer: Stelian Pop <stelian.pop@leadtechdesign.com> */
+	.phys_io	= AT91_BASE_SYS,
+	.io_pg_offst	= (AT91_VA_BASE_SYS >> 18) & 0xfffc,
+	.boot_params	= AT91_SDRAM_BASE + 0x100,
+	.timer		= &at91sam926x_timer,
+	.map_io		= cap9adk_map_io,
+	.init_irq	= cap9adk_init_irq,
+	.init_machine	= cap9adk_board_init,
+MACHINE_END
-- 
cgit v1.2.3-59-g8ed1b


From e50d64097b6e63278789ee3a4394d127bd6e4254 Mon Sep 17 00:00:00 2001
From: Assaf Hoffman <hoffman@marvell.com>
Date: Tue, 23 Oct 2007 15:14:41 -0400
Subject: [ARM] Marvell Feroceon CPU core support

The Feroceon is a family of independent ARMv5TE compliant CPU core
implementations, supporting a variable depth pipeline and out-of-order
execution.  The Feroceon is configurable with VFP support, and the
later models in the series are superscalar with up to two instructions
per clock cycle.

This patch adds the initial low-level cache/TLB handling for this core.

Signed-off-by: Assaf Hoffman <hoffman@marvell.com>
Reviewed-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig             |   2 +-
 arch/arm/mm/Kconfig          |  16 +-
 arch/arm/mm/Makefile         |   1 +
 arch/arm/mm/proc-feroceon.S  | 479 +++++++++++++++++++++++++++++++++++++++++++
 include/asm-arm/cacheflush.h |   8 +
 include/asm-arm/proc-fns.h   |   8 +
 6 files changed, 511 insertions(+), 3 deletions(-)
 create mode 100644 arch/arm/mm/proc-feroceon.S

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a04f507e7f2c..fae3f164218f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -951,7 +951,7 @@ config FPE_FASTFPE
 
 config VFP
 	bool "VFP-format floating point maths"
-	depends on CPU_V6 || CPU_ARM926T
+	depends on CPU_V6 || CPU_ARM926T || CPU_FEROCEON
 	help
 	  Say Y to include VFP support code in the kernel. This is needed
 	  if your hardware includes a VFP unit.
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 7868f4dc1d00..378fb744abe2 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -342,6 +342,18 @@ config CPU_XSC3
 	select CPU_TLB_V4WBI if MMU
 	select IO_36
 
+# Feroceon
+config CPU_FEROCEON
+	bool
+	depends on ARCH_ORION
+	default y
+	select CPU_32v5
+	select CPU_ABRT_EV5T
+	select CPU_CACHE_VIVT
+	select CPU_CP15_MMU
+	select CPU_COPY_V4WB if MMU
+	select CPU_TLB_V4WBI if MMU
+
 # ARMv6
 config CPU_V6
 	bool "Support ARM V6 processor"
@@ -538,7 +550,7 @@ comment "Processor Features"
 
 config ARM_THUMB
 	bool "Support Thumb user binaries"
-	depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_V6 || CPU_V7
+	depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_V6 || CPU_V7 || CPU_FEROCEON
 	default y
 	help
 	  Say Y if you want to include kernel support for running user space
@@ -600,7 +612,7 @@ config CPU_DCACHE_SIZE
 
 config CPU_DCACHE_WRITETHROUGH
 	bool "Force write through D-cache"
-	depends on (CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020) && !CPU_DCACHE_DISABLE
+	depends on (CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_FEROCEON) && !CPU_DCACHE_DISABLE
 	default y if CPU_ARM925T
 	help
 	  Say Y here to use the data cache in writethrough mode. Unless you
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index 762702765fc3..44536a0b995a 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -68,6 +68,7 @@ obj-$(CONFIG_CPU_SA110)		+= proc-sa110.o
 obj-$(CONFIG_CPU_SA1100)	+= proc-sa1100.o
 obj-$(CONFIG_CPU_XSCALE)	+= proc-xscale.o
 obj-$(CONFIG_CPU_XSC3)		+= proc-xsc3.o
+obj-$(CONFIG_CPU_FEROCEON)	+= proc-feroceon.o
 obj-$(CONFIG_CPU_V6)		+= proc-v6.o
 obj-$(CONFIG_CPU_V7)		+= proc-v7.o
 
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
new file mode 100644
index 000000000000..8ad341af7906
--- /dev/null
+++ b/arch/arm/mm/proc-feroceon.S
@@ -0,0 +1,479 @@
+/*
+ *  linux/arch/arm/mm/proc-feroceon.S: MMU functions for Feroceon
+ *
+ *  Heavily based on proc-arm926.S
+ *  Maintainer: Assaf Hoffman <hoffman@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/linkage.h>
+#include <linux/init.h>
+#include <asm/assembler.h>
+#include <asm/elf.h>
+#include <asm/pgtable-hwdef.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/ptrace.h>
+#include "proc-macros.S"
+
+/*
+ * This is the maximum size of an area which will be invalidated
+ * using the single invalidate entry instructions.  Anything larger
+ * than this, and we go for the whole cache.
+ *
+ * This value should be chosen such that we choose the cheapest
+ * alternative.
+ */
+#define CACHE_DLIMIT	16384
+
+/*
+ * the cache line size of the I and D cache
+ */
+#define CACHE_DLINESIZE	32
+
+	.text
+/*
+ * cpu_feroceon_proc_init()
+ */
+ENTRY(cpu_feroceon_proc_init)
+	mov	pc, lr
+
+/*
+ * cpu_feroceon_proc_fin()
+ */
+ENTRY(cpu_feroceon_proc_fin)
+	stmfd	sp!, {lr}
+	mov	ip, #PSR_F_BIT | PSR_I_BIT | SVC_MODE
+	msr	cpsr_c, ip
+	bl	feroceon_flush_kern_cache_all
+	mrc	p15, 0, r0, c1, c0, 0		@ ctrl register
+	bic	r0, r0, #0x1000			@ ...i............
+	bic	r0, r0, #0x000e			@ ............wca.
+	mcr	p15, 0, r0, c1, c0, 0		@ disable caches
+	ldmfd	sp!, {pc}
+
+/*
+ * cpu_feroceon_reset(loc)
+ *
+ * Perform a soft reset of the system.  Put the CPU into the
+ * same state as it would be if it had been reset, and branch
+ * to what would be the reset vector.
+ *
+ * loc: location to jump to for soft reset
+ */
+	.align	5
+ENTRY(cpu_feroceon_reset)
+	mov	ip, #0
+	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches
+	mcr	p15, 0, ip, c7, c10, 4		@ drain WB
+#ifdef CONFIG_MMU
+	mcr	p15, 0, ip, c8, c7, 0		@ invalidate I & D TLBs
+#endif
+	mrc	p15, 0, ip, c1, c0, 0		@ ctrl register
+	bic	ip, ip, #0x000f			@ ............wcam
+	bic	ip, ip, #0x1100			@ ...i...s........
+	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
+	mov	pc, r0
+
+/*
+ * cpu_feroceon_do_idle()
+ *
+ * Called with IRQs disabled
+ */
+	.align	10
+ENTRY(cpu_feroceon_do_idle)
+	mov	r0, #0
+	mcr	p15, 0, r0, c7, c10, 4		@ Drain write buffer
+	mcr	p15, 0, r0, c7, c0, 4		@ Wait for interrupt
+	mov	pc, lr
+
+/*
+ *	flush_user_cache_all()
+ *
+ *	Clean and invalidate all cache entries in a particular
+ *	address space.
+ */
+ENTRY(feroceon_flush_user_cache_all)
+	/* FALLTHROUGH */
+
+/*
+ *	flush_kern_cache_all()
+ *
+ *	Clean and invalidate the entire cache.
+ */
+ENTRY(feroceon_flush_kern_cache_all)
+	mov	r2, #VM_EXEC
+	mov	ip, #0
+__flush_whole_cache:
+#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
+	mcr	p15, 0, ip, c7, c6, 0		@ invalidate D cache
+#else
+1:	mrc	p15, 0, r15, c7, c14, 3 	@ test,clean,invalidate
+	bne	1b
+#endif
+	tst	r2, #VM_EXEC
+	mcrne	p15, 0, ip, c7, c5, 0		@ invalidate I cache
+	mcrne	p15, 0, ip, c7, c10, 4		@ drain WB
+	mov	pc, lr
+
+/*
+ *	flush_user_cache_range(start, end, flags)
+ *
+ *	Clean and invalidate a range of cache entries in the
+ *	specified address range.
+ *
+ *	- start	- start address (inclusive)
+ *	- end	- end address (exclusive)
+ *	- flags	- vm_flags describing address space
+ */
+ENTRY(feroceon_flush_user_cache_range)
+	mov	ip, #0
+	sub	r3, r1, r0			@ calculate total size
+	cmp	r3, #CACHE_DLIMIT
+	bgt	__flush_whole_cache
+1:	tst	r2, #VM_EXEC
+#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
+	mcr	p15, 0, r0, c7, c6, 1		@ invalidate D entry
+	mcrne	p15, 0, r0, c7, c5, 1		@ invalidate I entry
+	add	r0, r0, #CACHE_DLINESIZE
+	mcr	p15, 0, r0, c7, c6, 1		@ invalidate D entry
+	mcrne	p15, 0, r0, c7, c5, 1		@ invalidate I entry
+	add	r0, r0, #CACHE_DLINESIZE
+#else
+	mcr	p15, 0, r0, c7, c14, 1		@ clean and invalidate D entry
+	mcrne	p15, 0, r0, c7, c5, 1		@ invalidate I entry
+	add	r0, r0, #CACHE_DLINESIZE
+	mcr	p15, 0, r0, c7, c14, 1		@ clean and invalidate D entry
+	mcrne	p15, 0, r0, c7, c5, 1		@ invalidate I entry
+	add	r0, r0, #CACHE_DLINESIZE
+#endif
+	cmp	r0, r1
+	blo	1b
+	tst	r2, #VM_EXEC
+	mcrne	p15, 0, ip, c7, c10, 4		@ drain WB
+	mov	pc, lr
+
+/*
+ *	coherent_kern_range(start, end)
+ *
+ *	Ensure coherency between the Icache and the Dcache in the
+ *	region described by start, end.  If you have non-snooping
+ *	Harvard caches, you need to implement this function.
+ *
+ *	- start	- virtual start address
+ *	- end	- virtual end address
+ */
+ENTRY(feroceon_coherent_kern_range)
+	/* FALLTHROUGH */
+
+/*
+ *	coherent_user_range(start, end)
+ *
+ *	Ensure coherency between the Icache and the Dcache in the
+ *	region described by start, end.  If you have non-snooping
+ *	Harvard caches, you need to implement this function.
+ *
+ *	- start	- virtual start address
+ *	- end	- virtual end address
+ */
+ENTRY(feroceon_coherent_user_range)
+	bic	r0, r0, #CACHE_DLINESIZE - 1
+1:	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
+	mcr	p15, 0, r0, c7, c5, 1		@ invalidate I entry
+	add	r0, r0, #CACHE_DLINESIZE
+	cmp	r0, r1
+	blo	1b
+	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
+	mov	pc, lr
+
+/*
+ *	flush_kern_dcache_page(void *page)
+ *
+ *	Ensure no D cache aliasing occurs, either with itself or
+ *	the I cache
+ *
+ *	- addr	- page aligned address
+ */
+ENTRY(feroceon_flush_kern_dcache_page)
+	add	r1, r0, #PAGE_SZ
+1:	mcr	p15, 0, r0, c7, c14, 1		@ clean+invalidate D entry
+	add	r0, r0, #CACHE_DLINESIZE
+	cmp	r0, r1
+	blo	1b
+	mov	r0, #0
+	mcr	p15, 0, r0, c7, c5, 0		@ invalidate I cache
+	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
+	mov	pc, lr
+
+/*
+ *	dma_inv_range(start, end)
+ *
+ *	Invalidate (discard) the specified virtual address range.
+ *	May not write back any entries.  If 'start' or 'end'
+ *	are not cache line aligned, those lines must be written
+ *	back.
+ *
+ *	- start	- virtual start address
+ *	- end	- virtual end address
+ *
+ * (same as v4wb)
+ */
+ENTRY(feroceon_dma_inv_range)
+#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
+	tst	r0, #CACHE_DLINESIZE - 1
+	mcrne	p15, 0, r0, c7, c10, 1		@ clean D entry
+	tst	r1, #CACHE_DLINESIZE - 1
+	mcrne	p15, 0, r1, c7, c10, 1		@ clean D entry
+#endif
+	bic	r0, r0, #CACHE_DLINESIZE - 1
+1:	mcr	p15, 0, r0, c7, c6, 1		@ invalidate D entry
+	add	r0, r0, #CACHE_DLINESIZE
+	cmp	r0, r1
+	blo	1b
+	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
+	mov	pc, lr
+
+/*
+ *	dma_clean_range(start, end)
+ *
+ *	Clean the specified virtual address range.
+ *
+ *	- start	- virtual start address
+ *	- end	- virtual end address
+ *
+ * (same as v4wb)
+ */
+ENTRY(feroceon_dma_clean_range)
+#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
+	bic	r0, r0, #CACHE_DLINESIZE - 1
+1:	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
+	add	r0, r0, #CACHE_DLINESIZE
+	cmp	r0, r1
+	blo	1b
+#endif
+	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
+	mov	pc, lr
+
+/*
+ *	dma_flush_range(start, end)
+ *
+ *	Clean and invalidate the specified virtual address range.
+ *
+ *	- start	- virtual start address
+ *	- end	- virtual end address
+ */
+ENTRY(feroceon_dma_flush_range)
+	bic	r0, r0, #CACHE_DLINESIZE - 1
+1:
+#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
+	mcr	p15, 0, r0, c7, c14, 1		@ clean+invalidate D entry
+#else
+	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
+#endif
+	add	r0, r0, #CACHE_DLINESIZE
+	cmp	r0, r1
+	blo	1b
+	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
+	mov	pc, lr
+
+ENTRY(feroceon_cache_fns)
+	.long	feroceon_flush_kern_cache_all
+	.long	feroceon_flush_user_cache_all
+	.long	feroceon_flush_user_cache_range
+	.long	feroceon_coherent_kern_range
+	.long	feroceon_coherent_user_range
+	.long	feroceon_flush_kern_dcache_page
+	.long	feroceon_dma_inv_range
+	.long	feroceon_dma_clean_range
+	.long	feroceon_dma_flush_range
+
+ENTRY(cpu_feroceon_dcache_clean_area)
+#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
+1:	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
+	add	r0, r0, #CACHE_DLINESIZE
+	subs	r1, r1, #CACHE_DLINESIZE
+	bhi	1b
+#endif
+	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
+	mov	pc, lr
+
+/* =============================== PageTable ============================== */
+
+/*
+ * cpu_feroceon_switch_mm(pgd)
+ *
+ * Set the translation base pointer to be as described by pgd.
+ *
+ * pgd: new page tables
+ */
+	.align	5
+ENTRY(cpu_feroceon_switch_mm)
+#ifdef CONFIG_MMU
+	mov	ip, #0
+#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
+	mcr	p15, 0, ip, c7, c6, 0		@ invalidate D cache
+#else
+@ && 'Clean & Invalidate whole DCache'
+1:	mrc	p15, 0, r15, c7, c14, 3 	@ test,clean,invalidate
+	bne	1b
+#endif
+	mcr	p15, 0, ip, c7, c5, 0		@ invalidate I cache
+	mcr	p15, 0, ip, c7, c10, 4		@ drain WB
+	mcr	p15, 0, r0, c2, c0, 0		@ load page table pointer
+	mcr	p15, 0, ip, c8, c7, 0		@ invalidate I & D TLBs
+#endif
+	mov	pc, lr
+
+/*
+ * cpu_feroceon_set_pte_ext(ptep, pte, ext)
+ *
+ * Set a PTE and flush it out
+ */
+	.align	5
+ENTRY(cpu_feroceon_set_pte_ext)
+#ifdef CONFIG_MMU
+	str	r1, [r0], #-2048		@ linux version
+
+	eor	r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY
+
+	bic	r2, r1, #PTE_SMALL_AP_MASK
+	bic	r2, r2, #PTE_TYPE_MASK
+	orr	r2, r2, #PTE_TYPE_SMALL
+
+	tst	r1, #L_PTE_USER			@ User?
+	orrne	r2, r2, #PTE_SMALL_AP_URO_SRW
+
+	tst	r1, #L_PTE_WRITE | L_PTE_DIRTY	@ Write and Dirty?
+	orreq	r2, r2, #PTE_SMALL_AP_UNO_SRW
+
+	tst	r1, #L_PTE_PRESENT | L_PTE_YOUNG	@ Present and Young?
+	movne	r2, #0
+
+#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
+	eor	r3, r2, #0x0a			@ C & small page?
+	tst	r3, #0x0b
+	biceq	r2, r2, #4
+#endif
+	str	r2, [r0]			@ hardware version
+	mov	r0, r0
+#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
+	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
+#endif
+	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
+#endif
+	mov	pc, lr
+
+	__INIT
+
+	.type	__feroceon_setup, #function
+__feroceon_setup:
+	mov	r0, #0
+	mcr	p15, 0, r0, c7, c7		@ invalidate I,D caches on v4
+	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer on v4
+#ifdef CONFIG_MMU
+	mcr	p15, 0, r0, c8, c7		@ invalidate I,D TLBs on v4
+#endif
+
+
+#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
+	mov	r0, #4				@ disable write-back on caches explicitly
+	mcr	p15, 7, r0, c15, c0, 0
+#endif
+
+	adr	r5, feroceon_crval
+	ldmia	r5, {r5, r6}
+	mrc	p15, 0, r0, c1, c0		@ get control register v4
+	bic	r0, r0, r5
+	orr	r0, r0, r6
+#ifdef CONFIG_CPU_CACHE_ROUND_ROBIN
+	orr	r0, r0, #0x4000			@ .1.. .... .... ....
+#endif
+	mov	pc, lr
+	.size	__feroceon_setup, . - __feroceon_setup
+
+	/*
+	 *  R
+	 * .RVI ZFRS BLDP WCAM
+	 * .011 0001 ..11 0101
+	 *
+	 */
+	.type	feroceon_crval, #object
+feroceon_crval:
+	crval	clear=0x00007f3f, mmuset=0x00003135, ucset=0x00001134
+
+	__INITDATA
+
+/*
+ * Purpose : Function pointers used to access above functions - all calls
+ *	     come through these
+ */
+	.type	feroceon_processor_functions, #object
+feroceon_processor_functions:
+	.word	v5t_early_abort
+	.word	cpu_feroceon_proc_init
+	.word	cpu_feroceon_proc_fin
+	.word	cpu_feroceon_reset
+	.word	cpu_feroceon_do_idle
+	.word	cpu_feroceon_dcache_clean_area
+	.word	cpu_feroceon_switch_mm
+	.word	cpu_feroceon_set_pte_ext
+	.size	feroceon_processor_functions, . - feroceon_processor_functions
+
+	.section ".rodata"
+
+	.type	cpu_arch_name, #object
+cpu_arch_name:
+	.asciz	"armv5te"
+	.size	cpu_arch_name, . - cpu_arch_name
+
+	.type	cpu_elf_name, #object
+cpu_elf_name:
+	.asciz	"v5"
+	.size	cpu_elf_name, . - cpu_elf_name
+
+	.type	cpu_feroceon_name, #object
+cpu_feroceon_name:
+	.asciz	"Feroceon"
+	.size	cpu_feroceon_name, . - cpu_feroceon_name
+
+	.align
+
+	.section ".proc.info.init", #alloc, #execinstr
+
+	.type	__feroceon_proc_info,#object
+__feroceon_proc_info:
+	.long	0x56055310
+	.long	0xfffffff0
+	.long   PMD_TYPE_SECT | \
+		PMD_SECT_BUFFERABLE | \
+		PMD_SECT_CACHEABLE | \
+		PMD_BIT4 | \
+		PMD_SECT_AP_WRITE | \
+		PMD_SECT_AP_READ
+	.long   PMD_TYPE_SECT | \
+		PMD_BIT4 | \
+		PMD_SECT_AP_WRITE | \
+		PMD_SECT_AP_READ
+	b	__feroceon_setup
+	.long	cpu_arch_name
+	.long	cpu_elf_name
+	.long	HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
+	.long	cpu_feroceon_name
+	.long	feroceon_processor_functions
+	.long	v4wbi_tlb_fns
+	.long	v4wb_user_fns
+	.long	feroceon_cache_fns
+	.size	__feroceon_proc_info, . - __feroceon_proc_info
diff --git a/include/asm-arm/cacheflush.h b/include/asm-arm/cacheflush.h
index 6c1c968b2987..759a97b56eed 100644
--- a/include/asm-arm/cacheflush.h
+++ b/include/asm-arm/cacheflush.h
@@ -94,6 +94,14 @@
 # endif
 #endif
 
+#if defined(CONFIG_CPU_FEROCEON)
+# ifdef _CACHE
+#  define MULTI_CACHE 1
+# else
+#  define _CACHE feroceon
+# endif
+#endif
+
 #if defined(CONFIG_CPU_V6)
 //# ifdef _CACHE
 #  define MULTI_CACHE 1
diff --git a/include/asm-arm/proc-fns.h b/include/asm-arm/proc-fns.h
index 5599d4e5e708..a4ce457199d3 100644
--- a/include/asm-arm/proc-fns.h
+++ b/include/asm-arm/proc-fns.h
@@ -185,6 +185,14 @@
 #   define CPU_NAME cpu_xsc3
 #  endif
 # endif
+# ifdef CONFIG_CPU_FEROCEON
+#  ifdef CPU_NAME
+#   undef  MULTI_CPU
+#   define MULTI_CPU
+#  else
+#   define CPU_NAME cpu_feroceon
+#  endif
+# endif
 # ifdef CONFIG_CPU_V6
 #  ifdef CPU_NAME
 #   undef  MULTI_CPU
-- 
cgit v1.2.3-59-g8ed1b


From 15754bf98ff564e8bb5296c7f5e67bc59b5700aa Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Wed, 31 Oct 2007 15:15:29 -0400
Subject: [ARM] add ARMv5TEJ aware cache flush method to compressed/head.S

The default ARMv4 method consisting of reading through some memory
area isn't compatible with the cache replacement policy of some
ARMv5TEJ compatible cache implementations.  It is also a bit wasteful
when a dedicated instruction can do the needed work optimally.

It is hard to tell if all ARMv5TEJ cores will support the used CP15
instruction, but at least all those implementations Linux currently
knows about (ARM926 and ARM1026) do support it.

Tested on an OMAP1610 H2 target.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Tested-by: George G. Davis <gdavis@mvista.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/boot/compressed/head.S | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 5cac46a19bb7..2073bf080523 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -641,7 +641,7 @@ proc_types:
 		.word	0x000f0000
 		b	__armv4_mmu_cache_on
 		b	__armv4_mmu_cache_off
-		b	__armv4_mmu_cache_flush
+		b	__armv5tej_mmu_cache_flush
 
 		.word	0x0007b000		@ ARMv6
 		.word	0x000ff000
@@ -821,6 +821,13 @@ iflush:
 		mcr	p15, 0, r10, c7, c10, 4	@ drain WB
 		mov	pc, lr
 
+__armv5tej_mmu_cache_flush:
+1:		mrc	p15, 0, r15, c7, c14, 3	@ test,clean,invalidate D cache
+		bne	1b
+		mcr	p15, 0, r0, c7, c5, 0	@ flush I cache
+		mcr	p15, 0, r0, c7, c10, 4	@ drain WB
+		mov	pc, lr
+
 __armv4_mmu_cache_flush:
 		mov	r2, #64*1024		@ default: 32K dcache size (*2)
 		mov	r11, #32		@ default: 32 byte line size
-- 
cgit v1.2.3-59-g8ed1b


From 3ebb5a2b44b02bddd5fbf0f29d71f1df6146c2c3 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Wed, 31 Oct 2007 15:31:48 -0400
Subject: [ARM] add Feroceon support to compressed/head.S

The cache replacement policy on the Feroceon core doesn't guarantee
that reading through a linear chunk of memory flushes the entire cache.
This is however what the default method for ARMv5TE cores does.

Although the Feroceon is an ARMv5TE core, it implements the same
cache handling instructions as the ARMv5TEJ cores, and must use it for
proper cache flush.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/boot/compressed/head.S | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 2073bf080523..3c2c8f2a1dc4 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -623,6 +623,12 @@ proc_types:
 		b	__armv4_mmu_cache_off
 		b	__armv4_mmu_cache_flush
 
+		.word	0x56055310		@ Feroceon
+		.word	0xfffffff0
+		b	__armv4_mmu_cache_on
+		b	__armv4_mmu_cache_off
+		b	__armv5tej_mmu_cache_flush
+
 		@ These match on the architecture ID
 
 		.word	0x00020000		@ ARMv4T
-- 
cgit v1.2.3-59-g8ed1b


From d910a0aa21c9c6e824744d0139bbe6a9ae676e2d Mon Sep 17 00:00:00 2001
From: Tzachi Perelstein <tzachi@marvell.com>
Date: Tue, 6 Nov 2007 10:35:40 +0200
Subject: [ARM] Feroceon: support old cores with ARM926 ID

This enables the usage of some old Feroceon cores
for which the CPU ID is equal to the ARM926 ID.
Relevant for Feroceon-1850 and old Feroceon-2850.

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/Kconfig         |  9 +++++++++
 arch/arm/mm/proc-feroceon.S | 27 +++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 378fb744abe2..9cdc74f94b11 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -354,6 +354,15 @@ config CPU_FEROCEON
 	select CPU_COPY_V4WB if MMU
 	select CPU_TLB_V4WBI if MMU
 
+config CPU_FEROCEON_OLD_ID
+	bool "Accept early Feroceon cores with an ARM926 ID"
+	depends on CPU_FEROCEON && !CPU_ARM926T
+	default y
+	help
+	  This enables the usage of some old Feroceon cores
+	  for which the CPU ID is equal to the ARM926 ID.
+	  Relevant for Feroceon-1850 and early Feroceon-2850.
+
 # ARMv6
 config CPU_V6
 	bool "Support ARM V6 processor"
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index 8ad341af7906..fa0dc7e6f0ea 100644
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -453,6 +453,33 @@ cpu_feroceon_name:
 
 	.section ".proc.info.init", #alloc, #execinstr
 
+#ifdef CONFIG_CPU_FEROCEON_OLD_ID
+	.type	__feroceon_old_id_proc_info,#object
+__feroceon_old_id_proc_info:
+	.long	0x41069260
+	.long	0xfffffff0
+	.long   PMD_TYPE_SECT | \
+		PMD_SECT_BUFFERABLE | \
+		PMD_SECT_CACHEABLE | \
+		PMD_BIT4 | \
+		PMD_SECT_AP_WRITE | \
+		PMD_SECT_AP_READ
+	.long   PMD_TYPE_SECT | \
+		PMD_BIT4 | \
+		PMD_SECT_AP_WRITE | \
+		PMD_SECT_AP_READ
+	b	__feroceon_setup
+	.long	cpu_arch_name
+	.long	cpu_elf_name
+	.long	HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
+	.long	cpu_feroceon_name
+	.long	feroceon_processor_functions
+	.long	v4wbi_tlb_fns
+	.long	v4wb_user_fns
+	.long	feroceon_cache_fns
+	.size	__feroceon_old_id_proc_info, . - __feroceon_old_id_proc_info
+#endif
+
 	.type	__feroceon_proc_info,#object
 __feroceon_proc_info:
 	.long	0x56055310
-- 
cgit v1.2.3-59-g8ed1b


From 585cf17561d3174a745bec49c422c1a621c95fc4 Mon Sep 17 00:00:00 2001
From: Tzachi Perelstein <tzachi@marvell.com>
Date: Tue, 23 Oct 2007 15:14:41 -0400
Subject: [ARM] basic support for the Marvell Orion SoC family

The Marvell Orion is a family of ARM SoCs with a DDR/DDR2 memory
controller, 10/100/1000 ethernet MAC, and USB 2.0 interfaces,
and, depending on the specific model, PCI-E interface, PCI-X
interface, SATA controllers, crypto unit, SPI interface, SDIO
interface, device bus, NAND controller, DMA engine and/or XOR
engine.

This contains the basic structure and architecture register definitions.

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig                         |   8 ++
 arch/arm/Makefile                        |   1 +
 arch/arm/mach-orion/Kconfig              |   7 ++
 arch/arm/mach-orion/Makefile             |   1 +
 arch/arm/mach-orion/Makefile.boot        |   3 +
 arch/arm/mach-orion/common.c             |  53 ++++++++++++
 arch/arm/mach-orion/common.h             |   9 ++
 include/asm-arm/arch-orion/debug-macro.S |  17 ++++
 include/asm-arm/arch-orion/dma.h         |   1 +
 include/asm-arm/arch-orion/entry-macro.S |  31 +++++++
 include/asm-arm/arch-orion/hardware.h    |  24 ++++++
 include/asm-arm/arch-orion/io.h          |  27 ++++++
 include/asm-arm/arch-orion/irqs.h        |  61 ++++++++++++++
 include/asm-arm/arch-orion/memory.h      |  15 ++++
 include/asm-arm/arch-orion/orion.h       | 140 +++++++++++++++++++++++++++++++
 include/asm-arm/arch-orion/system.h      |  31 +++++++
 include/asm-arm/arch-orion/timex.h       |  12 +++
 include/asm-arm/arch-orion/uncompress.h  |  44 ++++++++++
 include/asm-arm/arch-orion/vmalloc.h     |   5 ++
 19 files changed, 490 insertions(+)
 create mode 100644 arch/arm/mach-orion/Kconfig
 create mode 100644 arch/arm/mach-orion/Makefile
 create mode 100644 arch/arm/mach-orion/Makefile.boot
 create mode 100644 arch/arm/mach-orion/common.c
 create mode 100644 arch/arm/mach-orion/common.h
 create mode 100644 include/asm-arm/arch-orion/debug-macro.S
 create mode 100644 include/asm-arm/arch-orion/dma.h
 create mode 100644 include/asm-arm/arch-orion/entry-macro.S
 create mode 100644 include/asm-arm/arch-orion/hardware.h
 create mode 100644 include/asm-arm/arch-orion/io.h
 create mode 100644 include/asm-arm/arch-orion/irqs.h
 create mode 100644 include/asm-arm/arch-orion/memory.h
 create mode 100644 include/asm-arm/arch-orion/orion.h
 create mode 100644 include/asm-arm/arch-orion/system.h
 create mode 100644 include/asm-arm/arch-orion/timex.h
 create mode 100644 include/asm-arm/arch-orion/uncompress.h
 create mode 100644 include/asm-arm/arch-orion/vmalloc.h

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index fae3f164218f..036239150ff8 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -333,6 +333,12 @@ config ARCH_MXC
 	help
 	  Support for Freescale MXC/iMX-based family of processors
 
+config ARCH_ORION
+	bool "Marvell Orion"
+	depends on MMU
+	help
+	  Support for Marvell Orion System on Chip family.
+
 config ARCH_PNX4008
 	bool "Philips Nexperia PNX4008 Mobile"
 	help
@@ -441,6 +447,8 @@ source "arch/arm/mach-omap1/Kconfig"
 
 source "arch/arm/mach-omap2/Kconfig"
 
+source "arch/arm/mach-orion/Kconfig"
+
 source "arch/arm/plat-s3c24xx/Kconfig"
 source "arch/arm/plat-s3c/Kconfig"
 
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 35e56c99ad1d..2daa278149e0 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -139,6 +139,7 @@ endif
  machine-$(CONFIG_ARCH_KS8695)     := ks8695
   incdir-$(CONFIG_ARCH_MXC)	   := mxc
  machine-$(CONFIG_ARCH_MX3)	   := mx3
+ machine-$(CONFIG_ARCH_ORION)	   := orion
 
 ifeq ($(CONFIG_ARCH_EBSA110),y)
 # This is what happens if you forget the IOCS16 line.
diff --git a/arch/arm/mach-orion/Kconfig b/arch/arm/mach-orion/Kconfig
new file mode 100644
index 000000000000..c2af02125ce9
--- /dev/null
+++ b/arch/arm/mach-orion/Kconfig
@@ -0,0 +1,7 @@
+if ARCH_ORION
+
+menu "Orion Implementations"
+
+endmenu
+
+endif
diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
new file mode 100644
index 000000000000..69eb30187738
--- /dev/null
+++ b/arch/arm/mach-orion/Makefile
@@ -0,0 +1 @@
+obj-y  += common.o
diff --git a/arch/arm/mach-orion/Makefile.boot b/arch/arm/mach-orion/Makefile.boot
new file mode 100644
index 000000000000..67039c3e0c48
--- /dev/null
+++ b/arch/arm/mach-orion/Makefile.boot
@@ -0,0 +1,3 @@
+   zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000100
+initrd_phys-y	:= 0x00800000
diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c
new file mode 100644
index 000000000000..e04f3f07cac0
--- /dev/null
+++ b/arch/arm/mach-orion/common.c
@@ -0,0 +1,53 @@
+/*
+ * arch/arm/mach-orion/common.c
+ *
+ * Core functions for Marvell Orion System On Chip
+ *
+ * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/page.h>
+#include <asm/mach/map.h>
+#include <asm/arch/orion.h>
+#include "common.h"
+
+/*****************************************************************************
+ * I/O Address Mapping
+ ****************************************************************************/
+static struct map_desc orion_io_desc[] __initdata = {
+	{
+		.virtual	= ORION_REGS_BASE,
+		.pfn		= __phys_to_pfn(ORION_REGS_BASE),
+		.length		= ORION_REGS_SIZE,
+		.type		= MT_DEVICE
+	},
+	{
+		.virtual	= ORION_PCIE_IO_BASE,
+		.pfn		= __phys_to_pfn(ORION_PCIE_IO_BASE),
+		.length		= ORION_PCIE_IO_SIZE,
+		.type		= MT_DEVICE
+	},
+	{
+		.virtual	= ORION_PCI_IO_BASE,
+		.pfn		= __phys_to_pfn(ORION_PCI_IO_BASE),
+		.length		= ORION_PCI_IO_SIZE,
+		.type		= MT_DEVICE
+	},
+	{
+		.virtual	= ORION_PCIE_WA_BASE,
+		.pfn		= __phys_to_pfn(ORION_PCIE_WA_BASE),
+		.length		= ORION_PCIE_WA_SIZE,
+		.type		= MT_DEVICE
+	},
+};
+
+void __init orion_map_io(void)
+{
+	iotable_init(orion_io_desc, ARRAY_SIZE(orion_io_desc));
+}
diff --git a/arch/arm/mach-orion/common.h b/arch/arm/mach-orion/common.h
new file mode 100644
index 000000000000..224b44618a72
--- /dev/null
+++ b/arch/arm/mach-orion/common.h
@@ -0,0 +1,9 @@
+#ifndef __ARCH_ORION_COMMON_H__
+#define __ARCH_ORION_COMMON_H__
+
+/*
+ * Basic Orion init functions used early by machine-setup.
+ */
+void __init orion_map_io(void);
+
+#endif /* __ARCH_ORION_COMMON_H__ */
diff --git a/include/asm-arm/arch-orion/debug-macro.S b/include/asm-arm/arch-orion/debug-macro.S
new file mode 100644
index 000000000000..e2a80641f214
--- /dev/null
+++ b/include/asm-arm/arch-orion/debug-macro.S
@@ -0,0 +1,17 @@
+/*
+ * linux/include/asm-arm/arch-orion/debug-macro.S
+ *
+ * Debugging macro include header
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+	.macro  addruart,rx
+	mov   \rx, #0xf1000000
+	orr   \rx, \rx, #0x00012000
+	.endm
+
+#define UART_SHIFT	2
+#include <asm/hardware/debug-8250.S>
diff --git a/include/asm-arm/arch-orion/dma.h b/include/asm-arm/arch-orion/dma.h
new file mode 100644
index 000000000000..40a8c178f10d
--- /dev/null
+++ b/include/asm-arm/arch-orion/dma.h
@@ -0,0 +1 @@
+/* empty */
diff --git a/include/asm-arm/arch-orion/entry-macro.S b/include/asm-arm/arch-orion/entry-macro.S
new file mode 100644
index 000000000000..b76075a7e44b
--- /dev/null
+++ b/include/asm-arm/arch-orion/entry-macro.S
@@ -0,0 +1,31 @@
+/*
+ * include/asm-arm/arch-orion/entry-macro.S
+ *
+ * Low-level IRQ helper macros for Orion platforms
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <asm/arch/orion.h>
+
+	.macro  disable_fiq
+	.endm
+
+	.macro  arch_ret_to_user, tmp1, tmp2
+	.endm
+
+	.macro  get_irqnr_preamble, base, tmp
+	ldr	\base, =MAIN_IRQ_CAUSE
+	.endm
+
+	.macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
+	ldr	\irqstat, [\base, #0]		@ main cause
+	ldr	\tmp, [\base, #(MAIN_IRQ_MASK - MAIN_IRQ_CAUSE)] @ main mask
+	mov	\irqnr, #0			@ default irqnr
+	@ find cause bits that are unmasked
+	ands	\irqstat, \irqstat, \tmp	@ clear Z flag if any
+	clzne	\irqnr,	\irqstat		@ calc irqnr
+	rsbne	\irqnr, \irqnr, #31
+	.endm
diff --git a/include/asm-arm/arch-orion/hardware.h b/include/asm-arm/arch-orion/hardware.h
new file mode 100644
index 000000000000..8a12d213fbdc
--- /dev/null
+++ b/include/asm-arm/arch-orion/hardware.h
@@ -0,0 +1,24 @@
+/*
+ * include/asm-arm/arch-orion/hardware.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H__
+#define __ASM_ARCH_HARDWARE_H__
+
+#include "orion.h"
+
+#define PCI_MEMORY_VADDR        ORION_PCI_SYS_MEM_BASE
+#define PCI_IO_VADDR            ORION_PCI_SYS_IO_BASE
+
+#define pcibios_assign_all_busses()  1
+
+#define PCIBIOS_MIN_IO  0x1000
+#define PCIBIOS_MIN_MEM 0x01000000
+#define PCIMEM_BASE     PCI_MEMORY_VADDR /* mem base for VGA */
+
+#endif  /* _ASM_ARCH_HARDWARE_H */
diff --git a/include/asm-arm/arch-orion/io.h b/include/asm-arm/arch-orion/io.h
new file mode 100644
index 000000000000..e0b8c39b9167
--- /dev/null
+++ b/include/asm-arm/arch-orion/io.h
@@ -0,0 +1,27 @@
+/*
+ * include/asm-arm/arch-orion/io.h
+ *
+ * Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#include "orion.h"
+
+#define IO_SPACE_LIMIT		0xffffffff
+#define IO_SPACE_REMAP		ORION_PCI_SYS_IO_BASE
+
+static inline void __iomem *__io(unsigned long addr)
+{
+	return (void __iomem *)addr;
+}
+
+#define __io(a)			__io(a)
+#define __mem_pci(a)		(a)
+
+#endif
diff --git a/include/asm-arm/arch-orion/irqs.h b/include/asm-arm/arch-orion/irqs.h
new file mode 100644
index 000000000000..eea65ca6076a
--- /dev/null
+++ b/include/asm-arm/arch-orion/irqs.h
@@ -0,0 +1,61 @@
+/*
+ * include/asm-arm/arch-orion/irqs.h
+ *
+ * IRQ definitions for Orion SoC
+ *
+ *  Maintainer: Tzachi Perelstein <tzachi@marvell.com>
+ *
+ *  This file is licensed under the terms of the GNU General Public
+ *  License version 2. This program is licensed "as is" without any
+ *  warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_IRQS_H__
+#define __ASM_ARCH_IRQS_H__
+
+#include "orion.h"	/* need GPIO_MAX */
+
+/*
+ * Orion Main Interrupt Controller
+ */
+#define IRQ_ORION_BRIDGE	0
+#define IRQ_ORION_DOORBELL_H2C	1
+#define IRQ_ORION_DOORBELL_C2H	2
+#define IRQ_ORION_UART0		3
+#define IRQ_ORION_UART1		4
+#define IRQ_ORION_I2C		5
+#define IRQ_ORION_GPIO_0_7	6
+#define IRQ_ORION_GPIO_8_15	7
+#define IRQ_ORION_GPIO_16_23	8
+#define IRQ_ORION_GPIO_24_31	9
+#define IRQ_ORION_PCIE0_ERR	10
+#define IRQ_ORION_PCIE0_INT	11
+#define IRQ_ORION_USB1_CTRL	12
+#define IRQ_ORION_DEV_BUS_ERR	14
+#define IRQ_ORION_PCI_ERR	15
+#define IRQ_ORION_USB_BR_ERR	16
+#define IRQ_ORION_USB0_CTRL	17
+#define IRQ_ORION_ETH_RX	18
+#define IRQ_ORION_ETH_TX	19
+#define IRQ_ORION_ETH_MISC	20
+#define IRQ_ORION_ETH_SUM	21
+#define IRQ_ORION_ETH_ERR	22
+#define IRQ_ORION_IDMA_ERR	23
+#define IRQ_ORION_IDMA_0	24
+#define IRQ_ORION_IDMA_1	25
+#define IRQ_ORION_IDMA_2	26
+#define IRQ_ORION_IDMA_3	27
+#define IRQ_ORION_CESA		28
+#define IRQ_ORION_SATA		29
+#define IRQ_ORION_XOR0		30
+#define IRQ_ORION_XOR1		31
+
+/*
+ * Orion General Purpose Pins
+ */
+#define IRQ_ORION_GPIO_START	32
+#define NR_GPIO_IRQS		GPIO_MAX
+
+#define NR_IRQS			(IRQ_ORION_GPIO_START + NR_GPIO_IRQS)
+
+#endif /* __ASM_ARCH_IRQS_H__ */
diff --git a/include/asm-arm/arch-orion/memory.h b/include/asm-arm/arch-orion/memory.h
new file mode 100644
index 000000000000..d954dba87ced
--- /dev/null
+++ b/include/asm-arm/arch-orion/memory.h
@@ -0,0 +1,15 @@
+/*
+ * include/asm-arm/arch-orion/memory.h
+ *
+ * Marvell Orion memory definitions
+ */
+
+#ifndef __ASM_ARCH_MMU_H
+#define __ASM_ARCH_MMU_H
+
+#define PHYS_OFFSET	UL(0x00000000)
+
+#define __virt_to_bus(x)	__virt_to_phys(x)
+#define __bus_to_virt(x)	__phys_to_virt(x)
+
+#endif
diff --git a/include/asm-arm/arch-orion/orion.h b/include/asm-arm/arch-orion/orion.h
new file mode 100644
index 000000000000..061c03c5a17e
--- /dev/null
+++ b/include/asm-arm/arch-orion/orion.h
@@ -0,0 +1,140 @@
+/*
+ * include/asm-arm/arch-orion/orion.h
+ *
+ * Generic definitions of Orion SoC flavors:
+ *  Orion-1, Orion-NAS, Orion-VoIP, and Orion-2.
+ *
+ * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_ORION_H__
+#define __ASM_ARCH_ORION_H__
+
+/*******************************************************************************
+ * Orion Address Map
+ * Use the same mapping (1:1 virtual:physical) of internal registers and
+ * PCI system (PCI+PCIE) for all machines.
+ * Each machine defines the rest of its mapping (e.g. device bus flashes)
+ ******************************************************************************/
+#define ORION_REGS_BASE		0xf1000000
+#define ORION_REGS_SIZE		SZ_1M
+
+#define ORION_PCI_SYS_MEM_BASE	0xe0000000
+#define ORION_PCIE_MEM_BASE	ORION_PCI_SYS_MEM_BASE
+#define ORION_PCIE_MEM_SIZE	SZ_128M
+#define ORION_PCI_MEM_BASE	(ORION_PCIE_MEM_BASE + ORION_PCIE_MEM_SIZE)
+#define ORION_PCI_MEM_SIZE	SZ_128M
+
+#define ORION_PCI_SYS_IO_BASE	0xf2000000
+#define ORION_PCIE_IO_BASE	ORION_PCI_SYS_IO_BASE
+#define ORION_PCIE_IO_SIZE	SZ_1M
+#define ORION_PCIE_IO_REMAP	(ORION_PCIE_IO_BASE - ORION_PCI_SYS_IO_BASE)
+#define ORION_PCI_IO_BASE	(ORION_PCIE_IO_BASE + ORION_PCIE_IO_SIZE)
+#define ORION_PCI_IO_SIZE	SZ_1M
+#define ORION_PCI_IO_REMAP	(ORION_PCI_IO_BASE - ORION_PCI_SYS_IO_BASE)
+/* Relevant only for Orion-NAS */
+#define ORION_PCIE_WA_BASE	0xf0000000
+#define ORION_PCIE_WA_SIZE	SZ_16M
+
+/*******************************************************************************
+ * Supported Devices & Revisions
+ ******************************************************************************/
+/* Orion-NAS (88F5182) */
+#define MV88F5182_DEV_ID	0x5182
+#define MV88F5182_REV_A2	2
+/* Orion-2 (88F5281) */
+#define MV88F5281_DEV_ID	0x5281
+#define MV88F5281_REV_D1	5
+#define MV88F5281_REV_D2	6
+
+/*******************************************************************************
+ * Orion Registers Map
+ ******************************************************************************/
+#define ORION_DDR_REG_BASE	(ORION_REGS_BASE | 0x00000)
+#define ORION_DEV_BUS_REG_BASE	(ORION_REGS_BASE | 0x10000)
+#define ORION_BRIDGE_REG_BASE	(ORION_REGS_BASE | 0x20000)
+#define ORION_PCI_REG_BASE	(ORION_REGS_BASE | 0x30000)
+#define ORION_PCIE_REG_BASE	(ORION_REGS_BASE | 0x40000)
+#define ORION_USB0_REG_BASE	(ORION_REGS_BASE | 0x50000)
+#define ORION_ETH_REG_BASE	(ORION_REGS_BASE | 0x70000)
+#define ORION_SATA_REG_BASE	(ORION_REGS_BASE | 0x80000)
+#define ORION_USB1_REG_BASE	(ORION_REGS_BASE | 0xa0000)
+
+#define ORION_DDR_REG(x)	(ORION_DDR_REG_BASE | (x))
+#define ORION_DEV_BUS_REG(x)	(ORION_DEV_BUS_REG_BASE | (x))
+#define ORION_BRIDGE_REG(x)	(ORION_BRIDGE_REG_BASE | (x))
+#define ORION_PCI_REG(x)	(ORION_PCI_REG_BASE | (x))
+#define ORION_PCIE_REG(x)	(ORION_PCIE_REG_BASE | (x))
+#define ORION_USB0_REG(x)	(ORION_USB0_REG_BASE | (x))
+#define ORION_USB1_REG(x)	(ORION_USB1_REG_BASE | (x))
+#define ORION_ETH_REG(x)	(ORION_ETH_REG_BASE | (x))
+#define ORION_SATA_REG(x)	(ORION_SATA_REG_BASE | (x))
+
+/*******************************************************************************
+ * Device Bus Registers
+ ******************************************************************************/
+#define MPP_0_7_CTRL		ORION_DEV_BUS_REG(0x000)
+#define MPP_8_15_CTRL		ORION_DEV_BUS_REG(0x004)
+#define MPP_16_19_CTRL		ORION_DEV_BUS_REG(0x050)
+#define MPP_DEV_CTRL		ORION_DEV_BUS_REG(0x008)
+#define MPP_RESET_SAMPLE	ORION_DEV_BUS_REG(0x010)
+#define GPIO_OUT		ORION_DEV_BUS_REG(0x100)
+#define GPIO_IO_CONF		ORION_DEV_BUS_REG(0x104)
+#define GPIO_BLINK_EN		ORION_DEV_BUS_REG(0x108)
+#define GPIO_IN_POL		ORION_DEV_BUS_REG(0x10c)
+#define GPIO_DATA_IN		ORION_DEV_BUS_REG(0x110)
+#define GPIO_EDGE_CAUSE		ORION_DEV_BUS_REG(0x114)
+#define GPIO_EDGE_MASK		ORION_DEV_BUS_REG(0x118)
+#define GPIO_LEVEL_MASK		ORION_DEV_BUS_REG(0x11c)
+#define DEV_BANK_0_PARAM	ORION_DEV_BUS_REG(0x45c)
+#define DEV_BANK_1_PARAM	ORION_DEV_BUS_REG(0x460)
+#define DEV_BANK_2_PARAM	ORION_DEV_BUS_REG(0x464)
+#define DEV_BANK_BOOT_PARAM	ORION_DEV_BUS_REG(0x46c)
+#define DEV_BUS_CTRL		ORION_DEV_BUS_REG(0x4c0)
+#define DEV_BUS_INT_CAUSE	ORION_DEV_BUS_REG(0x4d0)
+#define DEV_BUS_INT_MASK	ORION_DEV_BUS_REG(0x4d4)
+#define I2C_BASE		ORION_DEV_BUS_REG(0x1000)
+#define UART0_BASE		ORION_DEV_BUS_REG(0x2000)
+#define UART1_BASE		ORION_DEV_BUS_REG(0x2100)
+#define GPIO_MAX		32
+
+/***************************************************************************
+ * Orion CPU Bridge Registers
+ **************************************************************************/
+#define CPU_CONF		ORION_BRIDGE_REG(0x100)
+#define CPU_CTRL		ORION_BRIDGE_REG(0x104)
+#define CPU_RESET_MASK		ORION_BRIDGE_REG(0x108)
+#define CPU_SOFT_RESET		ORION_BRIDGE_REG(0x10c)
+#define POWER_MNG_CTRL_REG	ORION_BRIDGE_REG(0x11C)
+#define BRIDGE_CAUSE		ORION_BRIDGE_REG(0x110)
+#define BRIDGE_MASK		ORION_BRIDGE_REG(0x114)
+#define MAIN_IRQ_CAUSE		ORION_BRIDGE_REG(0x200)
+#define MAIN_IRQ_MASK		ORION_BRIDGE_REG(0x204)
+#define TIMER_CTRL		ORION_BRIDGE_REG(0x300)
+#define TIMER_VAL(x)		ORION_BRIDGE_REG(0x314 + ((x) * 8))
+#define TIMER_VAL_RELOAD(x)	ORION_BRIDGE_REG(0x310 + ((x) * 8))
+
+#ifndef __ASSEMBLY__
+
+/*******************************************************************************
+ * Helpers to access Orion registers
+ ******************************************************************************/
+#include <asm/types.h>
+#include <asm/io.h>
+
+#define orion_read(r)		__raw_readl(r)
+#define orion_write(r, val)	__raw_writel(val, r)
+
+/*
+ * These are not preempt safe. Locks, if needed, must be taken care by caller.
+ */
+#define orion_setbits(r, mask)	orion_write((r), orion_read(r) | (mask))
+#define orion_clrbits(r, mask)	orion_write((r), orion_read(r) & ~(mask))
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_ARCH_ORION_H__ */
diff --git a/include/asm-arm/arch-orion/system.h b/include/asm-arm/arch-orion/system.h
new file mode 100644
index 000000000000..17704c68f90e
--- /dev/null
+++ b/include/asm-arm/arch-orion/system.h
@@ -0,0 +1,31 @@
+/*
+ * include/asm-arm/arch-orion/system.h
+ *
+ * Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H
+
+#include <asm/arch/hardware.h>
+#include <asm/arch/orion.h>
+
+static inline void arch_idle(void)
+{
+	cpu_do_idle();
+}
+
+static inline void arch_reset(char mode)
+{
+	/*
+	 * Enable and issue soft reset
+	 */
+	orion_setbits(CPU_RESET_MASK, (1 << 2));
+	orion_setbits(CPU_SOFT_RESET, 1);
+}
+
+#endif
diff --git a/include/asm-arm/arch-orion/timex.h b/include/asm-arm/arch-orion/timex.h
new file mode 100644
index 000000000000..26c2c91eecf0
--- /dev/null
+++ b/include/asm-arm/arch-orion/timex.h
@@ -0,0 +1,12 @@
+/*
+ * include/asm-arm/arch-orion/timex.h
+ *
+ * Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#define ORION_TCLK		166666667
+#define CLOCK_TICK_RATE		ORION_TCLK
diff --git a/include/asm-arm/arch-orion/uncompress.h b/include/asm-arm/arch-orion/uncompress.h
new file mode 100644
index 000000000000..a1a222fb438c
--- /dev/null
+++ b/include/asm-arm/arch-orion/uncompress.h
@@ -0,0 +1,44 @@
+/*
+ * include/asm-arm/arch-orion/uncompress.h
+ *
+ * Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <asm/arch/orion.h>
+
+#define MV_UART_LSR 	((volatile unsigned char *)(UART0_BASE + 0x14))
+#define MV_UART_THR	((volatile unsigned char *)(UART0_BASE + 0x0))
+
+#define LSR_THRE	0x20
+
+static void putc(const char c)
+{
+	int j = 0x1000;
+	while (--j && !(*MV_UART_LSR & LSR_THRE))
+		barrier();
+	*MV_UART_THR = c;
+}
+
+static void flush(void)
+{
+}
+
+static void orion_early_putstr(const char *ptr)
+{
+	char c;
+	while ((c = *ptr++) != '\0') {
+		if (c == '\n')
+			putc('\r');
+		putc(c);
+	}
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
diff --git a/include/asm-arm/arch-orion/vmalloc.h b/include/asm-arm/arch-orion/vmalloc.h
new file mode 100644
index 000000000000..23e2a102fe0c
--- /dev/null
+++ b/include/asm-arm/arch-orion/vmalloc.h
@@ -0,0 +1,5 @@
+/*
+ * include/asm-arm/arch-orion/vmalloc.h
+ */
+
+#define VMALLOC_END       0xf0000000
-- 
cgit v1.2.3-59-g8ed1b


From 038ee0832ee1b1e2bd2be4599cd535ea9aaaf658 Mon Sep 17 00:00:00 2001
From: Tzachi Perelstein <tzachi@marvell.com>
Date: Tue, 23 Oct 2007 15:14:42 -0400
Subject: [ARM] Orion: PCI support

This patch adds support for PCI and PCI-E controllers in the
Orion, Orion-NAS and Orion2.

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig             |   1 +
 arch/arm/mach-orion/Makefile |   2 +-
 arch/arm/mach-orion/common.h |  17 ++
 arch/arm/mach-orion/pci.c    | 557 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 576 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-orion/pci.c

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 036239150ff8..37aa3c606c0c 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -336,6 +336,7 @@ config ARCH_MXC
 config ARCH_ORION
 	bool "Marvell Orion"
 	depends on MMU
+	select PCI
 	help
 	  Support for Marvell Orion System on Chip family.
 
diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
index 69eb30187738..2937f05b868e 100644
--- a/arch/arm/mach-orion/Makefile
+++ b/arch/arm/mach-orion/Makefile
@@ -1 +1 @@
-obj-y  += common.o
+obj-y  += common.o pci.o
diff --git a/arch/arm/mach-orion/common.h b/arch/arm/mach-orion/common.h
index 224b44618a72..02d0fec44a40 100644
--- a/arch/arm/mach-orion/common.h
+++ b/arch/arm/mach-orion/common.h
@@ -6,4 +6,21 @@
  */
 void __init orion_map_io(void);
 
+/*
+ * Shared code used internally by other Orion core functions.
+ * (/mach-orion/pci.c)
+ */
+
+struct pci_sys_data;
+struct pci_bus;
+
+void orion_pcie_id(u32 *dev, u32 *rev);
+u32 orion_pcie_local_bus_nr(void);
+u32 orion_pci_local_bus_nr(void);
+u32 orion_pci_local_dev_nr(void);
+int orion_pci_sys_setup(int nr, struct pci_sys_data *sys);
+struct pci_bus *orion_pci_sys_scan_bus(int nr, struct pci_sys_data *sys);
+int orion_pci_hw_rd_conf(u32 bus, u32 dev, u32 func, u32 where, u32 size, u32 *val);
+int orion_pci_hw_wr_conf(u32 bus, u32 dev, u32 func, u32 where, u32 size, u32 val);
+
 #endif /* __ARCH_ORION_COMMON_H__ */
diff --git a/arch/arm/mach-orion/pci.c b/arch/arm/mach-orion/pci.c
new file mode 100644
index 000000000000..cf569c647112
--- /dev/null
+++ b/arch/arm/mach-orion/pci.c
@@ -0,0 +1,557 @@
+/*
+ * arch/arm/mach-orion/pci.c
+ *
+ * PCI and PCIE functions for Marvell Orion System On Chip
+ *
+ * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <asm/mach/pci.h>
+#include "common.h"
+
+/*****************************************************************************
+ * Orion has one PCIE controller and one PCI controller.
+ *
+ * Note1: The local PCIE bus number is '0'. The local PCI bus number
+ * follows the scanned PCIE bridged busses, if any.
+ *
+ * Note2: It is possible for PCI/PCIE agents to access many subsystem's
+ * space, by configuring BARs and Address Decode Windows, e.g. flashes on
+ * device bus, Orion registers, etc. However this code only enable the
+ * access to DDR banks.
+ ****************************************************************************/
+
+
+/*****************************************************************************
+ * PCIE controller
+ ****************************************************************************/
+#define PCIE_CTRL		ORION_PCIE_REG(0x1a00)
+#define PCIE_STAT		ORION_PCIE_REG(0x1a04)
+#define PCIE_DEV_ID		ORION_PCIE_REG(0x0000)
+#define PCIE_CMD_STAT		ORION_PCIE_REG(0x0004)
+#define PCIE_DEV_REV		ORION_PCIE_REG(0x0008)
+#define PCIE_MASK		ORION_PCIE_REG(0x1910)
+#define PCIE_CONF_ADDR		ORION_PCIE_REG(0x18f8)
+#define PCIE_CONF_DATA		ORION_PCIE_REG(0x18fc)
+
+/*
+ * PCIE_STAT bits
+ */
+#define PCIE_STAT_LINK_DOWN		1
+#define PCIE_STAT_BUS_OFFS		8
+#define PCIE_STAT_BUS_MASK		(0xff << PCIE_STAT_BUS_OFFS)
+#define PCIE_STAT_DEV_OFFS		20
+#define PCIE_STAT_DEV_MASK		(0x1f << PCIE_STAT_DEV_OFFS)
+
+/*
+ * PCIE_CONF_ADDR bits
+ */
+#define PCIE_CONF_REG(r)		((((r) & 0xf00) << 24) | ((r) & 0xfc))
+#define PCIE_CONF_FUNC(f)		(((f) & 0x3) << 8)
+#define PCIE_CONF_DEV(d)		(((d) & 0x1f) << 11)
+#define PCIE_CONF_BUS(b)		(((b) & 0xff) << 16)
+#define PCIE_CONF_ADDR_EN		(1 << 31)
+
+/*
+ * PCIE config cycles are done by programming the PCIE_CONF_ADDR register
+ * and then reading the PCIE_CONF_DATA register. Need to make sure these
+ * transactions are atomic.
+ */
+static DEFINE_SPINLOCK(orion_pcie_lock);
+
+void orion_pcie_id(u32 *dev, u32 *rev)
+{
+	*dev = orion_read(PCIE_DEV_ID) >> 16;
+	*rev = orion_read(PCIE_DEV_REV) & 0xff;
+}
+
+u32 orion_pcie_local_bus_nr(void)
+{
+	u32 stat = orion_read(PCIE_STAT);
+	return((stat & PCIE_STAT_BUS_MASK) >> PCIE_STAT_BUS_OFFS);
+}
+
+static u32 orion_pcie_local_dev_nr(void)
+{
+	u32 stat = orion_read(PCIE_STAT);
+	return((stat & PCIE_STAT_DEV_MASK) >> PCIE_STAT_DEV_OFFS);
+}
+
+static u32 orion_pcie_no_link(void)
+{
+	u32 stat = orion_read(PCIE_STAT);
+	return(stat & PCIE_STAT_LINK_DOWN);
+}
+
+static void orion_pcie_set_bus_nr(int nr)
+{
+	orion_clrbits(PCIE_STAT, PCIE_STAT_BUS_MASK);
+	orion_setbits(PCIE_STAT, nr << PCIE_STAT_BUS_OFFS);
+}
+
+static void orion_pcie_master_slave_enable(void)
+{
+	orion_setbits(PCIE_CMD_STAT, PCI_COMMAND_MASTER |
+					  PCI_COMMAND_IO |
+					  PCI_COMMAND_MEMORY);
+}
+
+static void orion_pcie_enable_interrupts(void)
+{
+	/*
+	 * Enable interrupts lines
+	 * INTA[24] INTB[25] INTC[26] INTD[27]
+	 */
+	orion_setbits(PCIE_MASK, 0xf<<24);
+}
+
+static int orion_pcie_valid_config(u32 bus, u32 dev)
+{
+	/*
+	 * Don't go out when trying to access --
+	 * 1. our own device
+	 * 2. where there's no device connected (no link)
+	 * 3. nonexisting devices on local bus
+	 */
+
+	if ((orion_pcie_local_bus_nr() == bus) &&
+	   (orion_pcie_local_dev_nr() == dev))
+		return 0;
+
+	if (orion_pcie_no_link())
+		return 0;
+
+	if (bus == orion_pcie_local_bus_nr())
+		if (((orion_pcie_local_dev_nr() == 0) && (dev != 1)) ||
+		   ((orion_pcie_local_dev_nr() != 0) && (dev != 0)))
+		return 0;
+
+	return 1;
+}
+
+static int orion_pcie_rd_conf(struct pci_bus *bus, u32 devfn, int where,
+						int size, u32 *val)
+{
+	unsigned long flags;
+	unsigned int dev, rev, pcie_addr;
+
+	if (orion_pcie_valid_config(bus->number, PCI_SLOT(devfn)) == 0) {
+		*val = 0xffffffff;
+		return PCIBIOS_DEVICE_NOT_FOUND;
+	}
+
+	spin_lock_irqsave(&orion_pcie_lock, flags);
+
+	orion_write(PCIE_CONF_ADDR, PCIE_CONF_BUS(bus->number) |
+			PCIE_CONF_DEV(PCI_SLOT(devfn)) |
+			PCIE_CONF_FUNC(PCI_FUNC(devfn)) |
+			PCIE_CONF_REG(where) | PCIE_CONF_ADDR_EN);
+
+	orion_pcie_id(&dev, &rev);
+	if (dev == MV88F5182_DEV_ID) {
+		/* extended register space */
+		pcie_addr = ORION_PCIE_WA_BASE;
+		pcie_addr |= PCIE_CONF_BUS(bus->number) |
+			PCIE_CONF_DEV(PCI_SLOT(devfn)) |
+			PCIE_CONF_FUNC(PCI_FUNC(devfn)) |
+			PCIE_CONF_REG(where);
+		*val = orion_read(pcie_addr);
+	} else
+		*val = orion_read(PCIE_CONF_DATA);
+
+	if (size == 1)
+		*val = (*val >> (8*(where & 0x3))) & 0xff;
+	else if (size == 2)
+		*val = (*val >> (8*(where & 0x3))) & 0xffff;
+
+	spin_unlock_irqrestore(&orion_pcie_lock, flags);
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+
+static int orion_pcie_wr_conf(struct pci_bus *bus, u32 devfn, int where,
+						int size, u32 val)
+{
+	unsigned long flags;
+	int ret;
+
+	if (orion_pcie_valid_config(bus->number, PCI_SLOT(devfn)) == 0)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	spin_lock_irqsave(&orion_pcie_lock, flags);
+
+	ret = PCIBIOS_SUCCESSFUL;
+
+	orion_write(PCIE_CONF_ADDR, PCIE_CONF_BUS(bus->number) |
+			PCIE_CONF_DEV(PCI_SLOT(devfn)) |
+			PCIE_CONF_FUNC(PCI_FUNC(devfn)) |
+			PCIE_CONF_REG(where) | PCIE_CONF_ADDR_EN);
+
+	if (size == 4) {
+		__raw_writel(val, PCIE_CONF_DATA);
+	} else if (size == 2) {
+		__raw_writew(val, PCIE_CONF_DATA + (where & 0x3));
+	} else if (size == 1) {
+		__raw_writeb(val, PCIE_CONF_DATA + (where & 0x3));
+	} else {
+		ret = PCIBIOS_BAD_REGISTER_NUMBER;
+	}
+
+	spin_unlock_irqrestore(&orion_pcie_lock, flags);
+
+	return ret;
+}
+
+struct pci_ops orion_pcie_ops = {
+	.read = orion_pcie_rd_conf,
+	.write = orion_pcie_wr_conf,
+};
+
+
+static int orion_pcie_setup(struct pci_sys_data *sys)
+{
+	struct resource *res;
+
+	/*
+	 * Master + Slave enable
+	 */
+	orion_pcie_master_slave_enable();
+
+	/*
+	 * Enable interrupts lines A-D
+	 */
+	orion_pcie_enable_interrupts();
+
+	/*
+	 * Request resource
+	 */
+	res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+	if (!res)
+		panic("orion_pci_setup unable to alloc resources");
+
+	/*
+	 * IORESOURCE_IO
+	 */
+	res[0].name = "PCI-EX I/O Space";
+	res[0].flags = IORESOURCE_IO;
+	res[0].start = ORION_PCIE_IO_REMAP;
+	res[0].end = res[0].start + ORION_PCIE_IO_SIZE - 1;
+	if (request_resource(&ioport_resource, &res[0]))
+		panic("Request PCIE IO resource failed\n");
+	sys->resource[0] = &res[0];
+
+	/*
+	 * IORESOURCE_MEM
+	 */
+	res[1].name = "PCI-EX Memory Space";
+	res[1].flags = IORESOURCE_MEM;
+	res[1].start = ORION_PCIE_MEM_BASE;
+	res[1].end = res[1].start + ORION_PCIE_MEM_SIZE - 1;
+	if (request_resource(&iomem_resource, &res[1]))
+		panic("Request PCIE Memory resource failed\n");
+	sys->resource[1] = &res[1];
+
+	sys->resource[2] = NULL;
+	sys->io_offset = 0;
+
+	return 1;
+}
+
+/*****************************************************************************
+ * PCI controller
+ ****************************************************************************/
+#define PCI_MODE		ORION_PCI_REG(0xd00)
+#define PCI_CMD			ORION_PCI_REG(0xc00)
+#define PCI_P2P_CONF		ORION_PCI_REG(0x1d14)
+#define PCI_CONF_ADDR		ORION_PCI_REG(0xc78)
+#define PCI_CONF_DATA		ORION_PCI_REG(0xc7c)
+
+/*
+ * PCI_MODE bits
+ */
+#define PCI_MODE_64BIT			(1 << 2)
+#define PCI_MODE_PCIX			((1 << 4) | (1 << 5))
+
+/*
+ * PCI_CMD bits
+ */
+#define PCI_CMD_HOST_REORDER		(1 << 29)
+
+/*
+ * PCI_P2P_CONF bits
+ */
+#define PCI_P2P_BUS_OFFS		16
+#define PCI_P2P_BUS_MASK		(0xff << PCI_P2P_BUS_OFFS)
+#define PCI_P2P_DEV_OFFS		24
+#define PCI_P2P_DEV_MASK		(0x1f << PCI_P2P_DEV_OFFS)
+
+/*
+ * PCI_CONF_ADDR bits
+ */
+#define PCI_CONF_REG(reg)		((reg) & 0xfc)
+#define PCI_CONF_FUNC(func)		(((func) & 0x3) << 8)
+#define PCI_CONF_DEV(dev)		(((dev) & 0x1f) << 11)
+#define PCI_CONF_BUS(bus)		(((bus) & 0xff) << 16)
+#define PCI_CONF_ADDR_EN		(1 << 31)
+
+/*
+ * Internal configuration space
+ */
+#define PCI_CONF_FUNC_STAT_CMD		0
+#define PCI_CONF_REG_STAT_CMD		4
+#define PCIX_STAT			0x64
+#define PCIX_STAT_BUS_OFFS		8
+#define PCIX_STAT_BUS_MASK		(0xff << PCIX_STAT_BUS_OFFS)
+
+/*
+ * PCI config cycles are done by programming the PCI_CONF_ADDR register
+ * and then reading the PCI_CONF_DATA register. Need to make sure these
+ * transactions are atomic.
+ */
+static DEFINE_SPINLOCK(orion_pci_lock);
+
+u32 orion_pci_local_bus_nr(void)
+{
+	u32 conf = orion_read(PCI_P2P_CONF);
+	return((conf & PCI_P2P_BUS_MASK) >> PCI_P2P_BUS_OFFS);
+}
+
+u32 orion_pci_local_dev_nr(void)
+{
+	u32 conf = orion_read(PCI_P2P_CONF);
+	return((conf & PCI_P2P_DEV_MASK) >> PCI_P2P_DEV_OFFS);
+}
+
+int orion_pci_hw_rd_conf(u32 bus, u32 dev, u32 func,
+					u32 where, u32 size, u32 *val)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&orion_pci_lock, flags);
+
+	orion_write(PCI_CONF_ADDR, PCI_CONF_BUS(bus) |
+			PCI_CONF_DEV(dev) | PCI_CONF_REG(where) |
+			PCI_CONF_FUNC(func) | PCI_CONF_ADDR_EN);
+
+	*val = orion_read(PCI_CONF_DATA);
+
+	if (size == 1)
+		*val = (*val >> (8*(where & 0x3))) & 0xff;
+	else if (size == 2)
+		*val = (*val >> (8*(where & 0x3))) & 0xffff;
+
+	spin_unlock_irqrestore(&orion_pci_lock, flags);
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+int orion_pci_hw_wr_conf(u32 bus, u32 dev, u32 func,
+					u32 where, u32 size, u32 val)
+{
+	unsigned long flags;
+	int ret = PCIBIOS_SUCCESSFUL;
+
+	spin_lock_irqsave(&orion_pci_lock, flags);
+
+	orion_write(PCI_CONF_ADDR, PCI_CONF_BUS(bus) |
+			PCI_CONF_DEV(dev) | PCI_CONF_REG(where) |
+			PCI_CONF_FUNC(func) | PCI_CONF_ADDR_EN);
+
+	if (size == 4) {
+		__raw_writel(val, PCI_CONF_DATA);
+	} else if (size == 2) {
+		__raw_writew(val, PCI_CONF_DATA + (where & 0x3));
+	} else if (size == 1) {
+		__raw_writeb(val, PCI_CONF_DATA + (where & 0x3));
+	} else {
+		ret = PCIBIOS_BAD_REGISTER_NUMBER;
+	}
+
+	spin_unlock_irqrestore(&orion_pci_lock, flags);
+
+	return ret;
+}
+
+static int orion_pci_rd_conf(struct pci_bus *bus, u32 devfn,
+				int where, int size, u32 *val)
+{
+	/*
+	 * Don't go out for local device
+	 */
+	if ((orion_pci_local_bus_nr() == bus->number) &&
+	   (orion_pci_local_dev_nr() == PCI_SLOT(devfn))) {
+		*val = 0xffffffff;
+		return PCIBIOS_DEVICE_NOT_FOUND;
+	}
+
+	return orion_pci_hw_rd_conf(bus->number, PCI_SLOT(devfn),
+					PCI_FUNC(devfn), where, size, val);
+}
+
+static int orion_pci_wr_conf(struct pci_bus *bus, u32 devfn,
+				int where, int size, u32 val)
+{
+	/*
+	 * Don't go out for local device
+	 */
+	if ((orion_pci_local_bus_nr() == bus->number) &&
+	   (orion_pci_local_dev_nr() == PCI_SLOT(devfn)))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	return orion_pci_hw_wr_conf(bus->number, PCI_SLOT(devfn),
+					PCI_FUNC(devfn), where, size, val);
+}
+
+struct pci_ops orion_pci_ops = {
+	.read = orion_pci_rd_conf,
+	.write = orion_pci_wr_conf,
+};
+
+static void orion_pci_set_bus_nr(int nr)
+{
+	u32 p2p = orion_read(PCI_P2P_CONF);
+
+	if (orion_read(PCI_MODE) & PCI_MODE_PCIX) {
+		/*
+		 * PCI-X mode
+		 */
+		u32 pcix_status, bus, dev;
+		bus = (p2p & PCI_P2P_BUS_MASK) >> PCI_P2P_BUS_OFFS;
+		dev = (p2p & PCI_P2P_DEV_MASK) >> PCI_P2P_DEV_OFFS;
+		orion_pci_hw_rd_conf(bus, dev, 0, PCIX_STAT, 4, &pcix_status);
+		pcix_status &= ~PCIX_STAT_BUS_MASK;
+		pcix_status |= (nr << PCIX_STAT_BUS_OFFS);
+		orion_pci_hw_wr_conf(bus, dev, 0, PCIX_STAT, 4, pcix_status);
+	} else {
+		/*
+		 * PCI Conventional mode
+		 */
+		p2p &= ~PCI_P2P_BUS_MASK;
+		p2p |= (nr << PCI_P2P_BUS_OFFS);
+		orion_write(PCI_P2P_CONF, p2p);
+	}
+}
+
+static void orion_pci_master_slave_enable(void)
+{
+	u32 bus_nr, dev_nr, func, reg, val;
+
+	bus_nr = orion_pci_local_bus_nr();
+	dev_nr = orion_pci_local_dev_nr();
+	func = PCI_CONF_FUNC_STAT_CMD;
+	reg = PCI_CONF_REG_STAT_CMD;
+	orion_pci_hw_rd_conf(bus_nr, dev_nr, func, reg, 4, &val);
+	val |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+	orion_pci_hw_wr_conf(bus_nr, dev_nr, func, reg, 4, val | 0x7);
+}
+
+static int orion_pci_setup(struct pci_sys_data *sys)
+{
+	struct resource *res;
+
+	/*
+	 * Master + Slave enable
+	 */
+	orion_pci_master_slave_enable();
+
+	/*
+	 * Force ordering
+	 */
+	orion_setbits(PCI_CMD, PCI_CMD_HOST_REORDER);
+
+	/*
+	 * Request resources
+	 */
+	res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+	if (!res)
+		panic("orion_pci_setup unable to alloc resources");
+
+	/*
+	 * IORESOURCE_IO
+	 */
+	res[0].name = "PCI I/O Space";
+	res[0].flags = IORESOURCE_IO;
+	res[0].start = ORION_PCI_IO_REMAP;
+	res[0].end = res[0].start + ORION_PCI_IO_SIZE - 1;
+	if (request_resource(&ioport_resource, &res[0]))
+		panic("Request PCI IO resource failed\n");
+	sys->resource[0] = &res[0];
+
+	/*
+	 * IORESOURCE_MEM
+	 */
+	res[1].name = "PCI Memory Space";
+	res[1].flags = IORESOURCE_MEM;
+	res[1].start = ORION_PCI_MEM_BASE;
+	res[1].end = res[1].start + ORION_PCI_MEM_SIZE - 1;
+	if (request_resource(&iomem_resource, &res[1]))
+		panic("Request PCI Memory resource failed\n");
+	sys->resource[1] = &res[1];
+
+	sys->resource[2] = NULL;
+	sys->io_offset = 0;
+
+	return 1;
+}
+
+
+/*****************************************************************************
+ * General PCIE + PCI
+ ****************************************************************************/
+int orion_pci_sys_setup(int nr, struct pci_sys_data *sys)
+{
+	int ret = 0;
+
+	if (nr == 0) {
+		/*
+		 * PCIE setup
+		 */
+		orion_pcie_set_bus_nr(0);
+		ret = orion_pcie_setup(sys);
+	} else if (nr == 1) {
+		/*
+		 * PCI setup
+		 */
+		ret = orion_pci_setup(sys);
+	}
+
+	return ret;
+}
+
+struct pci_bus *orion_pci_sys_scan_bus(int nr, struct pci_sys_data *sys)
+{
+	struct pci_ops *ops;
+	struct pci_bus *bus;
+
+
+	if (nr == 0) {
+		u32 pci_bus;
+		/*
+		 * PCIE scan
+		 */
+		ops = &orion_pcie_ops;
+		bus = pci_scan_bus(sys->busnr, ops, sys);
+		/*
+		 * Set local PCI bus number to follow PCIE bridges (if any)
+		 */
+		pci_bus	= bus->number + bus->subordinate - bus->secondary + 1;
+		orion_pci_set_bus_nr(pci_bus);
+	} else if (nr == 1) {
+		/*
+		 * PCI scan
+		 */
+		ops = &orion_pci_ops;
+		bus = pci_scan_bus(sys->busnr, ops, sys);
+	} else {
+		BUG();
+		bus = NULL;
+	}
+
+	return bus;
+}
-- 
cgit v1.2.3-59-g8ed1b


From c67de5b3c0bb48ac56f14928e11f1f7d76add26f Mon Sep 17 00:00:00 2001
From: Tzachi Perelstein <tzachi@marvell.com>
Date: Tue, 23 Oct 2007 15:14:42 -0400
Subject: [ARM] Orion: programable address map support

The Orion has fully programable address map. There's a separate address
map for each of the device _master_ interfaces, e.g. CPU, PCI, PCIE, USB,
Gigabit Ethernet, DMA/XOR engines, etc.

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
---
 arch/arm/mach-orion/Makefile   |   2 +-
 arch/arm/mach-orion/addr-map.c | 482 +++++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-orion/common.c   |  51 +++++
 arch/arm/mach-orion/common.h   |  30 +++
 4 files changed, 564 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-orion/addr-map.c

(limited to 'arch')

diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
index 2937f05b868e..1d4b5570067e 100644
--- a/arch/arm/mach-orion/Makefile
+++ b/arch/arm/mach-orion/Makefile
@@ -1 +1 @@
-obj-y  += common.o pci.o
+obj-y  += common.o addr-map.o pci.o
diff --git a/arch/arm/mach-orion/addr-map.c b/arch/arm/mach-orion/addr-map.c
new file mode 100644
index 000000000000..ff6e010bccb2
--- /dev/null
+++ b/arch/arm/mach-orion/addr-map.c
@@ -0,0 +1,482 @@
+/*
+ * arch/arm/mach-orion/addr-map.c
+ *
+ * Address map functions for Marvell Orion System On Chip
+ *
+ * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/hardware.h>
+#include "common.h"
+
+/*
+ * The Orion has fully programable address map. There's a separate address
+ * map for each of the device _master_ interfaces, e.g. CPU, PCI, PCIE, USB,
+ * Gigabit Ethernet, DMA/XOR engines, etc. Each interface has its own
+ * address decode windows that allow it to access any of the Orion resources.
+ *
+ * CPU address decoding --
+ * Linux assumes that it is the boot loader that already setup the access to
+ * DDR and internal registers.
+ * Setup access to PCI and PCI-E IO/MEM space is issued by core.c.
+ * Setup access to various devices located on the device bus interface (e.g.
+ * flashes, RTC, etc) should be issued by machine-setup.c according to
+ * specific board population (by using orion_setup_cpu_win()).
+ *
+ * Non-CPU Masters address decoding --
+ * Unlike the CPU, we setup the access from Orion's master interfaces to DDR
+ * banks only (the typical use case).
+ * Setup access for each master to DDR is issued by common.c.
+ *
+ * Note: although orion_setbits() and orion_clrbits() are not atomic
+ * no locking is necessary here since code in this file is only called
+ * at boot time when there is no concurrency issues.
+ */
+
+/*
+ * Generic Address Decode Windows bit settings
+ */
+#define TARGET_DDR		0
+#define TARGET_PCI		3
+#define TARGET_PCIE		4
+#define TARGET_DEV_BUS		1
+#define ATTR_DDR_CS(n)		(((n) ==0) ? 0xe :	\
+				((n) == 1) ? 0xd :	\
+				((n) == 2) ? 0xb :	\
+				((n) == 3) ? 0x7 : 0xf)
+#define ATTR_PCIE_MEM		0x59
+#define ATTR_PCIE_IO		0x51
+#define ATTR_PCI_MEM		0x59
+#define ATTR_PCI_IO		0x51
+#define ATTR_DEV_CS0		0x1e
+#define ATTR_DEV_CS1		0x1d
+#define ATTR_DEV_CS2		0x1b
+#define ATTR_DEV_BOOT		0xf
+#define WIN_EN			1
+
+/*
+ * Helpers to get DDR banks info
+ */
+#define DDR_BASE_CS(n)		ORION_DDR_REG(0x1500 + ((n) * 8))
+#define DDR_SIZE_CS(n)		ORION_DDR_REG(0x1504 + ((n) * 8))
+#define DDR_MAX_CS		4
+#define DDR_REG_TO_SIZE(reg)	(((reg) | 0xffffff) + 1)
+#define DDR_REG_TO_BASE(reg)	((reg) & 0xff000000)
+#define DDR_BANK_EN		1
+
+/*
+ * CPU Address Decode Windows registers
+ */
+#define CPU_WIN_CTRL(n)		ORION_BRIDGE_REG(0x000 | ((n) << 4))
+#define CPU_WIN_BASE(n)		ORION_BRIDGE_REG(0x004 | ((n) << 4))
+#define CPU_WIN_REMAP_LO(n)	ORION_BRIDGE_REG(0x008 | ((n) << 4))
+#define CPU_WIN_REMAP_HI(n)	ORION_BRIDGE_REG(0x00c | ((n) << 4))
+#define CPU_MAX_WIN		8
+
+/*
+ * Use this CPU address decode windows allocation
+ */
+#define CPU_WIN_PCIE_IO		0
+#define CPU_WIN_PCI_IO		1
+#define CPU_WIN_PCIE_MEM	2
+#define CPU_WIN_PCI_MEM		3
+#define CPU_WIN_DEV_BOOT	4
+#define CPU_WIN_DEV_CS0		5
+#define CPU_WIN_DEV_CS1		6
+#define CPU_WIN_DEV_CS2		7
+
+/*
+ * PCIE Address Decode Windows registers
+ */
+#define PCIE_BAR_CTRL(n)	ORION_PCIE_REG(0x1804 + ((n - 1) * 4))
+#define PCIE_BAR_LO(n)		ORION_PCIE_REG(0x0010 + ((n) * 8))
+#define PCIE_BAR_HI(n)		ORION_PCIE_REG(0x0014 + ((n) * 8))
+#define PCIE_WIN_CTRL(n)	ORION_PCIE_REG(0x1820 + ((n) << 4))
+#define PCIE_WIN_BASE(n)	ORION_PCIE_REG(0x1824 + ((n) << 4))
+#define PCIE_WIN_REMAP(n)	ORION_PCIE_REG(0x182c + ((n) << 4))
+#define PCIE_DEFWIN_CTRL	ORION_PCIE_REG(0x18b0)
+#define PCIE_EXPROM_WIN_CTRL	ORION_PCIE_REG(0x18c0)
+#define PCIE_EXPROM_WIN_REMP	ORION_PCIE_REG(0x18c4)
+#define PCIE_MAX_BARS		3
+#define PCIE_MAX_WINS		5
+
+/*
+ * Use PCIE BAR '1' for all DDR banks
+ */
+#define PCIE_DRAM_BAR		1
+
+/*
+ * PCI Address Decode Windows registers
+ */
+#define PCI_BAR_SIZE_DDR_CS(n)	(((n) == 0) ? ORION_PCI_REG(0xc08) : \
+				((n) == 1) ? ORION_PCI_REG(0xd08) :  \
+				((n) == 2) ? ORION_PCI_REG(0xc0c) :  \
+				((n) == 3) ? ORION_PCI_REG(0xd0c) : 0)
+#define PCI_BAR_REMAP_DDR_CS(n)	(((n) ==0) ? ORION_PCI_REG(0xc48) : \
+				((n) == 1) ? ORION_PCI_REG(0xd48) :  \
+				((n) == 2) ? ORION_PCI_REG(0xc4c) :  \
+				((n) == 3) ? ORION_PCI_REG(0xd4c) : 0)
+#define PCI_BAR_ENABLE		ORION_PCI_REG(0xc3c)
+#define PCI_CTRL_BASE_LO(n)	ORION_PCI_REG(0x1e00 | ((n) << 4))
+#define PCI_CTRL_BASE_HI(n)	ORION_PCI_REG(0x1e04 | ((n) << 4))
+#define PCI_CTRL_SIZE(n)	ORION_PCI_REG(0x1e08 | ((n) << 4))
+#define PCI_ADDR_DECODE_CTRL	ORION_PCI_REG(0xd3c)
+
+/*
+ * PCI configuration heleprs for BAR settings
+ */
+#define PCI_CONF_FUNC_BAR_CS(n)		((n) >> 1)
+#define PCI_CONF_REG_BAR_LO_CS(n)	(((n) & 1) ? 0x18 : 0x10)
+#define PCI_CONF_REG_BAR_HI_CS(n)	(((n) & 1) ? 0x1c : 0x14)
+
+/*
+ * Gigabit Ethernet Address Decode Windows registers
+ */
+#define ETH_WIN_BASE(win)	ORION_ETH_REG(0x200 + ((win) * 8))
+#define ETH_WIN_SIZE(win)	ORION_ETH_REG(0x204 + ((win) * 8))
+#define ETH_WIN_REMAP(win)	ORION_ETH_REG(0x280 + ((win) * 4))
+#define ETH_WIN_EN		ORION_ETH_REG(0x290)
+#define ETH_WIN_PROT		ORION_ETH_REG(0x294)
+#define ETH_MAX_WIN		6
+#define ETH_MAX_REMAP_WIN	4
+
+/*
+ * USB Address Decode Windows registers
+ */
+#define USB_WIN_CTRL(i, w)	((i == 0) ? ORION_USB0_REG(0x320 + ((w) << 4)) \
+					: ORION_USB1_REG(0x320 + ((w) << 4)))
+#define USB_WIN_BASE(i, w)	((i == 0) ? ORION_USB0_REG(0x324 + ((w) << 4)) \
+					: ORION_USB1_REG(0x324 + ((w) << 4)))
+#define USB_MAX_WIN		4
+
+/*
+ * SATA Address Decode Windows registers
+ */
+#define SATA_WIN_CTRL(win)	ORION_SATA_REG(0x30 + ((win) * 0x10))
+#define SATA_WIN_BASE(win)	ORION_SATA_REG(0x34 + ((win) * 0x10))
+#define SATA_MAX_WIN		4
+
+static int __init orion_cpu_win_can_remap(u32 win)
+{
+	u32 dev, rev;
+
+	orion_pcie_id(&dev, &rev);
+	if ((dev == MV88F5281_DEV_ID && win < 4) || (dev == MV88F5182_DEV_ID && win < 2))
+		return 1;
+
+	return 0;
+}
+
+void __init orion_setup_cpu_win(enum orion_target target, u32 base, u32 size, int remap)
+{
+	u32 win, attr, ctrl;
+
+	switch (target) {
+	case ORION_PCIE_IO:
+		target = TARGET_PCIE;
+		attr = ATTR_PCIE_IO;
+		win = CPU_WIN_PCIE_IO;
+		break;
+	case ORION_PCI_IO:
+		target = TARGET_PCI;
+		attr = ATTR_PCI_IO;
+		win = CPU_WIN_PCI_IO;
+		break;
+	case ORION_PCIE_MEM:
+		target = TARGET_PCIE;
+		attr = ATTR_PCIE_MEM;
+		win = CPU_WIN_PCIE_MEM;
+		break;
+	case ORION_PCI_MEM:
+		target = TARGET_PCI;
+		attr = ATTR_PCI_MEM;
+		win = CPU_WIN_PCI_MEM;
+		break;
+	case ORION_DEV_BOOT:
+		target = TARGET_DEV_BUS;
+		attr = ATTR_DEV_BOOT;
+		win = CPU_WIN_DEV_BOOT;
+		break;
+	case ORION_DEV0:
+		target = TARGET_DEV_BUS;
+		attr = ATTR_DEV_CS0;
+		win = CPU_WIN_DEV_CS0;
+		break;
+	case ORION_DEV1:
+		target = TARGET_DEV_BUS;
+		attr = ATTR_DEV_CS1;
+		win = CPU_WIN_DEV_CS1;
+		break;
+	case ORION_DEV2:
+		target = TARGET_DEV_BUS;
+		attr = ATTR_DEV_CS2;
+		win = CPU_WIN_DEV_CS2;
+		break;
+	case ORION_DDR:
+	case ORION_REGS:
+		/*
+		 * Must be mapped by bootloader.
+		 */
+	default:
+		target = attr = win = -1;
+		BUG();
+	}
+
+	base &= 0xffff0000;
+	ctrl = (((size - 1) & 0xffff0000) | (attr << 8) |
+		(target << 4) | WIN_EN);
+
+	orion_write(CPU_WIN_BASE(win), base);
+	orion_write(CPU_WIN_CTRL(win), ctrl);
+
+	if (orion_cpu_win_can_remap(win)) {
+		if (remap >= 0) {
+			orion_write(CPU_WIN_REMAP_LO(win), remap & 0xffff0000);
+			orion_write(CPU_WIN_REMAP_HI(win), 0);
+		} else {
+			orion_write(CPU_WIN_REMAP_LO(win), base);
+			orion_write(CPU_WIN_REMAP_HI(win), 0);
+		}
+	}
+}
+
+void __init orion_setup_cpu_wins(void)
+{
+	int i;
+
+	/*
+	 * First, disable and clear windows
+	 */
+	for (i = 0; i < CPU_MAX_WIN; i++) {
+		orion_write(CPU_WIN_BASE(i), 0);
+		orion_write(CPU_WIN_CTRL(i), 0);
+		if (orion_cpu_win_can_remap(i)) {
+			orion_write(CPU_WIN_REMAP_LO(i), 0);
+			orion_write(CPU_WIN_REMAP_HI(i), 0);
+		}
+	}
+
+	/*
+	 * Setup windows for PCI+PCIE IO+MAM space
+	 */
+	orion_setup_cpu_win(ORION_PCIE_IO, ORION_PCIE_IO_BASE,
+				ORION_PCIE_IO_SIZE, ORION_PCIE_IO_REMAP);
+	orion_setup_cpu_win(ORION_PCI_IO, ORION_PCI_IO_BASE,
+				ORION_PCI_IO_SIZE, ORION_PCI_IO_REMAP);
+	orion_setup_cpu_win(ORION_PCIE_MEM, ORION_PCIE_MEM_BASE,
+				ORION_PCIE_MEM_SIZE, -1);
+	orion_setup_cpu_win(ORION_PCI_MEM, ORION_PCI_MEM_BASE,
+				ORION_PCI_MEM_SIZE, -1);
+}
+
+/*
+ * Setup PCIE BARs and Address Decode Wins:
+ * BAR[0,2] -> disabled, BAR[1] -> covers all DRAM banks
+ * WIN[0-3] -> DRAM bank[0-3]
+ */
+void __init orion_setup_pcie_wins(void)
+{
+	u32 base, size, i;
+
+	/*
+	 * First, disable and clear BARs and windows
+	 */
+	for (i = 1; i < PCIE_MAX_BARS; i++) {
+		orion_write(PCIE_BAR_CTRL(i), 0);
+		orion_write(PCIE_BAR_LO(i), 0);
+		orion_write(PCIE_BAR_HI(i), 0);
+	}
+
+	for (i = 0; i < PCIE_MAX_WINS; i++) {
+		orion_write(PCIE_WIN_CTRL(i), 0);
+		orion_write(PCIE_WIN_BASE(i), 0);
+		orion_write(PCIE_WIN_REMAP(i), 0);
+	}
+
+	/*
+	 * Setup windows for DDR banks. Count total DDR size on the fly.
+	 */
+	base = DDR_REG_TO_BASE(orion_read(DDR_BASE_CS(0)));
+	size = 0;
+	for (i = 0; i < DDR_MAX_CS; i++) {
+		u32 bank_base, bank_size;
+		bank_size = orion_read(DDR_SIZE_CS(i));
+		bank_base = orion_read(DDR_BASE_CS(i));
+		if (bank_size & DDR_BANK_EN) {
+			bank_size = DDR_REG_TO_SIZE(bank_size);
+			bank_base = DDR_REG_TO_BASE(bank_base);
+			orion_write(PCIE_WIN_BASE(i), bank_base & 0xffff0000);
+			orion_write(PCIE_WIN_REMAP(i), 0);
+			orion_write(PCIE_WIN_CTRL(i),
+					((bank_size-1) & 0xffff0000) |
+					(ATTR_DDR_CS(i) << 8) |
+					(TARGET_DDR << 4) |
+					(PCIE_DRAM_BAR << 1) | WIN_EN);
+			size += bank_size;
+		}
+	}
+
+	/*
+	 * Setup BAR[1] to all DRAM banks
+	 */
+	orion_write(PCIE_BAR_LO(PCIE_DRAM_BAR), base & 0xffff0000);
+	orion_write(PCIE_BAR_HI(PCIE_DRAM_BAR), 0);
+	orion_write(PCIE_BAR_CTRL(PCIE_DRAM_BAR),
+				((size - 1) & 0xffff0000) | WIN_EN);
+}
+
+void __init orion_setup_pci_wins(void)
+{
+	u32 base, size, i;
+
+	/*
+	 * First, disable windows
+	 */
+	orion_write(PCI_BAR_ENABLE, 0xffffffff);
+
+	/*
+	 * Setup windows for DDR banks.
+	 */
+	for (i = 0; i < DDR_MAX_CS; i++) {
+		base = orion_read(DDR_BASE_CS(i));
+		size = orion_read(DDR_SIZE_CS(i));
+		if (size & DDR_BANK_EN) {
+			u32 bus, dev, func, reg, val;
+			size = DDR_REG_TO_SIZE(size);
+			base = DDR_REG_TO_BASE(base);
+			bus = orion_pci_local_bus_nr();
+			dev = orion_pci_local_dev_nr();
+			func = PCI_CONF_FUNC_BAR_CS(i);
+			reg = PCI_CONF_REG_BAR_LO_CS(i);
+			orion_pci_hw_rd_conf(bus, dev, func, reg, 4, &val);
+			orion_pci_hw_wr_conf(bus, dev, func, reg, 4,
+					(base & 0xfffff000) | (val & 0xfff));
+			reg = PCI_CONF_REG_BAR_HI_CS(i);
+			orion_pci_hw_wr_conf(bus, dev, func, reg, 4, 0);
+			orion_write(PCI_BAR_SIZE_DDR_CS(i),
+					(size - 1) & 0xfffff000);
+			orion_write(PCI_BAR_REMAP_DDR_CS(i),
+					base & 0xfffff000);
+			orion_clrbits(PCI_BAR_ENABLE, (1 << i));
+		}
+	}
+
+	/*
+	 * Disable automatic update of address remaping when writing to BARs
+	 */
+	orion_setbits(PCI_ADDR_DECODE_CTRL, 1);
+}
+
+void __init orion_setup_usb_wins(void)
+{
+	int i;
+	u32 usb_if, dev, rev;
+	u32 max_usb_if = 1;
+
+	orion_pcie_id(&dev, &rev);
+	if (dev == MV88F5182_DEV_ID)
+		max_usb_if = 2;
+
+	for (usb_if = 0; usb_if < max_usb_if; usb_if++) {
+		/*
+		 * First, disable and clear windows
+		 */
+		for (i = 0; i < USB_MAX_WIN; i++) {
+			orion_write(USB_WIN_BASE(usb_if, i), 0);
+			orion_write(USB_WIN_CTRL(usb_if, i), 0);
+		}
+
+		/*
+		 * Setup windows for DDR banks.
+		 */
+		for (i = 0; i < DDR_MAX_CS; i++) {
+			u32 base, size;
+			size = orion_read(DDR_SIZE_CS(i));
+			base = orion_read(DDR_BASE_CS(i));
+			if (size & DDR_BANK_EN) {
+				base = DDR_REG_TO_BASE(base);
+				size = DDR_REG_TO_SIZE(size);
+				orion_write(USB_WIN_CTRL(usb_if, i),
+						((size-1) & 0xffff0000) |
+						(ATTR_DDR_CS(i) << 8) |
+						(TARGET_DDR << 4) | WIN_EN);
+				orion_write(USB_WIN_BASE(usb_if, i),
+						base & 0xffff0000);
+			}
+		}
+	}
+}
+
+void __init orion_setup_eth_wins(void)
+{
+	int i;
+
+	/*
+	 * First, disable and clear windows
+	 */
+	for (i = 0; i < ETH_MAX_WIN; i++) {
+		orion_write(ETH_WIN_BASE(i), 0);
+		orion_write(ETH_WIN_SIZE(i), 0);
+		orion_setbits(ETH_WIN_EN, 1 << i);
+		orion_clrbits(ETH_WIN_PROT, 0x3 << (i * 2));
+		if (i < ETH_MAX_REMAP_WIN)
+			orion_write(ETH_WIN_REMAP(i), 0);
+	}
+
+	/*
+	 * Setup windows for DDR banks.
+	 */
+	for (i = 0; i < DDR_MAX_CS; i++) {
+		u32 base, size;
+		size = orion_read(DDR_SIZE_CS(i));
+		base = orion_read(DDR_BASE_CS(i));
+		if (size & DDR_BANK_EN) {
+			base = DDR_REG_TO_BASE(base);
+			size = DDR_REG_TO_SIZE(size);
+			orion_write(ETH_WIN_SIZE(i), (size-1) & 0xffff0000);
+			orion_write(ETH_WIN_BASE(i), (base & 0xffff0000) |
+					(ATTR_DDR_CS(i) << 8) |
+					TARGET_DDR);
+			orion_clrbits(ETH_WIN_EN, 1 << i);
+			orion_setbits(ETH_WIN_PROT, 0x3 << (i * 2));
+		}
+	}
+}
+
+void __init orion_setup_sata_wins(void)
+{
+	int i;
+
+	/*
+	 * First, disable and clear windows
+	 */
+	for (i = 0; i < SATA_MAX_WIN; i++) {
+		orion_write(SATA_WIN_BASE(i), 0);
+		orion_write(SATA_WIN_CTRL(i), 0);
+	}
+
+	/*
+	 * Setup windows for DDR banks.
+	 */
+	for (i = 0; i < DDR_MAX_CS; i++) {
+		u32 base, size;
+		size = orion_read(DDR_SIZE_CS(i));
+		base = orion_read(DDR_BASE_CS(i));
+		if (size & DDR_BANK_EN) {
+			base = DDR_REG_TO_BASE(base);
+			size = DDR_REG_TO_SIZE(size);
+			orion_write(SATA_WIN_CTRL(i),
+					((size-1) & 0xffff0000) |
+					(ATTR_DDR_CS(i) << 8) |
+					(TARGET_DDR << 4) | WIN_EN);
+			orion_write(SATA_WIN_BASE(i),
+					base & 0xffff0000);
+		}
+	}
+}
diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c
index e04f3f07cac0..69363cbcb63b 100644
--- a/arch/arm/mach-orion/common.c
+++ b/arch/arm/mach-orion/common.c
@@ -13,6 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <asm/page.h>
+#include <asm/timex.h>
 #include <asm/mach/map.h>
 #include <asm/arch/orion.h>
 #include "common.h"
@@ -51,3 +52,53 @@ void __init orion_map_io(void)
 {
 	iotable_init(orion_io_desc, ARRAY_SIZE(orion_io_desc));
 }
+
+/*****************************************************************************
+ * General
+ ****************************************************************************/
+
+/*
+ * Identify device ID and rev from PCIE configuration header space '0'.
+ */
+static void orion_id(u32 *dev, u32 *rev, char **dev_name)
+{
+	orion_pcie_id(dev, rev);
+
+	if (*dev == MV88F5281_DEV_ID) {
+		if (*rev == MV88F5281_REV_D2) {
+			*dev_name = "MV88F5281-D2";
+		} else if (*rev == MV88F5281_REV_D1) {
+			*dev_name = "MV88F5281-D1";
+		} else {
+			*dev_name = "MV88F5281-Rev-Unsupported";
+		}
+	} else if (*dev == MV88F5182_DEV_ID) {
+		if (*rev == MV88F5182_REV_A2) {
+			*dev_name = "MV88F5182-A2";
+		} else {
+			*dev_name = "MV88F5182-Rev-Unsupported";
+		}
+	} else {
+		*dev_name = "Device-Unknown";
+	}
+}
+
+void __init orion_init(void)
+{
+	char *dev_name;
+	u32 dev, rev;
+
+	orion_id(&dev, &rev, &dev_name);
+	printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, ORION_TCLK);
+
+	/*
+	 * Setup Orion address map
+	 */
+	orion_setup_cpu_wins();
+	orion_setup_usb_wins();
+	orion_setup_eth_wins();
+	orion_setup_pci_wins();
+	orion_setup_pcie_wins();
+	if (dev == MV88F5182_DEV_ID)
+		orion_setup_sata_wins();
+}
diff --git a/arch/arm/mach-orion/common.h b/arch/arm/mach-orion/common.h
index 02d0fec44a40..056043464ca1 100644
--- a/arch/arm/mach-orion/common.h
+++ b/arch/arm/mach-orion/common.h
@@ -4,7 +4,37 @@
 /*
  * Basic Orion init functions used early by machine-setup.
  */
+
 void __init orion_map_io(void);
+void __init orion_init(void);
+
+/*
+ * Enumerations and functions for Orion windows mapping. Used by Orion core
+ * functions to map its interfaces and by the machine-setup to map its on-
+ * board devices. Details in /mach-orion/addr-map.c
+ */
+
+enum orion_target {
+	ORION_DEV_BOOT = 0,
+	ORION_DEV0,
+	ORION_DEV1,
+	ORION_DEV2,
+	ORION_PCIE_MEM,
+	ORION_PCIE_IO,
+	ORION_PCI_MEM,
+	ORION_PCI_IO,
+	ORION_DDR,
+	ORION_REGS,
+	ORION_MAX_TARGETS
+};
+
+void orion_setup_cpu_win(enum orion_target target, u32 base, u32 size, int remap);
+void orion_setup_cpu_wins(void);
+void orion_setup_eth_wins(void);
+void orion_setup_usb_wins(void);
+void orion_setup_pci_wins(void);
+void orion_setup_pcie_wins(void);
+void orion_setup_sata_wins(void);
 
 /*
  * Shared code used internally by other Orion core functions.
-- 
cgit v1.2.3-59-g8ed1b


From 01af72e4e36fba66cd7cfc2a628efee866c346d1 Mon Sep 17 00:00:00 2001
From: Tzachi Perelstein <tzachi@marvell.com>
Date: Tue, 23 Oct 2007 15:14:42 -0400
Subject: [ARM] Orion: GPIO support

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Acked-by: David Brownell <david-b@pacbell.net>
---
 arch/arm/Kconfig                  |   1 +
 arch/arm/mach-orion/Makefile      |   2 +-
 arch/arm/mach-orion/common.h      |   8 ++
 arch/arm/mach-orion/gpio.c        | 206 ++++++++++++++++++++++++++++++++++++++
 include/asm-arm/arch-orion/gpio.h |  27 +++++
 5 files changed, 243 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-orion/gpio.c
 create mode 100644 include/asm-arm/arch-orion/gpio.h

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 37aa3c606c0c..71e905ebcc05 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -337,6 +337,7 @@ config ARCH_ORION
 	bool "Marvell Orion"
 	depends on MMU
 	select PCI
+	select GENERIC_GPIO
 	help
 	  Support for Marvell Orion System on Chip family.
 
diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
index 1d4b5570067e..d6a6c86faafc 100644
--- a/arch/arm/mach-orion/Makefile
+++ b/arch/arm/mach-orion/Makefile
@@ -1 +1 @@
-obj-y  += common.o addr-map.o pci.o
+obj-y  += common.o addr-map.o pci.o gpio.o
diff --git a/arch/arm/mach-orion/common.h b/arch/arm/mach-orion/common.h
index 056043464ca1..a6a7af189b0e 100644
--- a/arch/arm/mach-orion/common.h
+++ b/arch/arm/mach-orion/common.h
@@ -53,4 +53,12 @@ struct pci_bus *orion_pci_sys_scan_bus(int nr, struct pci_sys_data *sys);
 int orion_pci_hw_rd_conf(u32 bus, u32 dev, u32 func, u32 where, u32 size, u32 *val);
 int orion_pci_hw_wr_conf(u32 bus, u32 dev, u32 func, u32 where, u32 size, u32 val);
 
+/*
+ * Valid GPIO pins according to MPP setup, used by machine-setup.
+ * (/mach-orion/gpio.c).
+ */
+
+void __init orion_gpio_set_valid_pins(u32 pins);
+void gpio_display(void);	/* debug */
+
 #endif /* __ARCH_ORION_COMMON_H__ */
diff --git a/arch/arm/mach-orion/gpio.c b/arch/arm/mach-orion/gpio.c
new file mode 100644
index 000000000000..af8553ccd230
--- /dev/null
+++ b/arch/arm/mach-orion/gpio.c
@@ -0,0 +1,206 @@
+/*
+ * arch/arm/mach-orion/gpio.c
+ *
+ * GPIO functions for Marvell Orion System On Chip
+ *
+ * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/bitops.h>
+#include <asm/gpio.h>
+#include <asm/arch/orion.h>
+#include "common.h"
+
+static DEFINE_SPINLOCK(gpio_lock);
+static unsigned long gpio_valid[BITS_TO_LONGS(GPIO_MAX)];
+static const char *gpio_label[GPIO_MAX];  /* non null for allocated GPIOs */
+
+void __init orion_gpio_set_valid_pins(u32 pins)
+{
+	gpio_valid[0] = pins;
+}
+
+/*
+ * GENERIC_GPIO primitives
+ */
+int gpio_direction_input(unsigned pin)
+{
+	unsigned long flags;
+
+	if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) {
+		pr_debug("%s: invalid GPIO %d\n", __FUNCTION__, pin);
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&gpio_lock, flags);
+
+	/*
+	 * Some callers might have not used the gpio_request(),
+	 * so flag this pin as requested now.
+	 */
+	if (!gpio_label[pin])
+		gpio_label[pin] = "?";
+
+	orion_setbits(GPIO_IO_CONF, 1 << pin);
+
+	spin_unlock_irqrestore(&gpio_lock, flags);
+	return 0;
+}
+EXPORT_SYMBOL(gpio_direction_input);
+
+int gpio_direction_output(unsigned pin, int value)
+{
+	unsigned long flags;
+	int mask;
+
+	if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) {
+		pr_debug("%s: invalid GPIO %d\n", __FUNCTION__, pin);
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&gpio_lock, flags);
+
+	/*
+	 * Some callers might have not used the gpio_request(),
+	 * so flag this pin as requested now.
+	 */
+	if (!gpio_label[pin])
+		gpio_label[pin] = "?";
+
+	mask = 1 << pin;
+	if (value)
+		orion_setbits(GPIO_OUT, mask);
+	else
+		orion_clrbits(GPIO_OUT, mask);
+	orion_clrbits(GPIO_IO_CONF, mask);
+
+	spin_unlock_irqrestore(&gpio_lock, flags);
+	return 0;
+}
+EXPORT_SYMBOL(gpio_direction_output);
+
+int gpio_get_value(unsigned pin)
+{
+	int val, mask = 1 << pin;
+
+	if (orion_read(GPIO_IO_CONF) & mask)
+		val = orion_read(GPIO_DATA_IN);
+	else
+		val = orion_read(GPIO_OUT);
+
+	return val & mask;
+}
+EXPORT_SYMBOL(gpio_get_value);
+
+void gpio_set_value(unsigned pin, int value)
+{
+	unsigned long flags;
+	int mask = 1 << pin;
+
+	spin_lock_irqsave(&gpio_lock, flags);
+
+	if (value)
+		orion_setbits(GPIO_OUT, mask);
+	else
+		orion_clrbits(GPIO_OUT, mask);
+
+	spin_unlock_irqrestore(&gpio_lock, flags);
+}
+EXPORT_SYMBOL(gpio_set_value);
+
+int gpio_request(unsigned pin, const char *label)
+{
+	int ret = 0;
+	unsigned long flags;
+
+	if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) {
+		pr_debug("%s: invalid GPIO %d\n", __FUNCTION__, pin);
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&gpio_lock, flags);
+
+	if (gpio_label[pin]) {
+		pr_debug("%s: GPIO %d already used as %s\n",
+			 __FUNCTION__, pin, gpio_label[pin]);
+		ret = -EBUSY;
+	} else
+		gpio_label[pin] = label ? label : "?";
+
+	spin_unlock_irqrestore(&gpio_lock, flags);
+	return ret;
+}
+EXPORT_SYMBOL(gpio_request);
+
+void gpio_free(unsigned pin)
+{
+	if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) {
+		pr_debug("%s: invalid GPIO %d\n", __FUNCTION__, pin);
+		return;
+	}
+
+	if (!gpio_label[pin])
+		pr_warning("%s: GPIO %d already freed\n", __FUNCTION__, pin);
+	else
+		gpio_label[pin] = NULL;
+}
+EXPORT_SYMBOL(gpio_free);
+
+/* Debug helper */
+void gpio_display(void)
+{
+	int i;
+
+	for (i = 0; i < GPIO_MAX; i++) {
+		printk(KERN_DEBUG "Pin-%d: ", i);
+
+		if (!test_bit(i, gpio_valid)) {
+			printk("non-GPIO\n");
+		} else if (!gpio_label[i]) {
+			printk("GPIO, free\n");
+		} else {
+			printk("GPIO, used by %s, ", gpio_label[i]);
+			if (orion_read(GPIO_IO_CONF) & (1 << i)) {
+				printk("input, active %s, level %s, edge %s\n",
+				((orion_read(GPIO_IN_POL) >> i) & 1) ? "low" : "high",
+				((orion_read(GPIO_LEVEL_MASK) >> i) & 1) ? "enabled" : "masked",
+				((orion_read(GPIO_EDGE_MASK) >> i) & 1) ? "enabled" : "masked");
+			} else {
+				printk("output, val=%d\n", (orion_read(GPIO_OUT) >> i) & 1);
+			}
+		}
+	}
+
+	printk(KERN_DEBUG "MPP_0_7_CTRL (0x%08x) = 0x%08x\n",
+				MPP_0_7_CTRL, orion_read(MPP_0_7_CTRL));
+	printk(KERN_DEBUG "MPP_8_15_CTRL (0x%08x) = 0x%08x\n",
+				MPP_8_15_CTRL, orion_read(MPP_8_15_CTRL));
+	printk(KERN_DEBUG "MPP_16_19_CTRL (0x%08x) = 0x%08x\n",
+				MPP_16_19_CTRL, orion_read(MPP_16_19_CTRL));
+	printk(KERN_DEBUG "MPP_DEV_CTRL (0x%08x) = 0x%08x\n",
+				MPP_DEV_CTRL, orion_read(MPP_DEV_CTRL));
+	printk(KERN_DEBUG "GPIO_OUT (0x%08x) = 0x%08x\n",
+				GPIO_OUT, orion_read(GPIO_OUT));
+	printk(KERN_DEBUG "GPIO_IO_CONF (0x%08x) = 0x%08x\n",
+				GPIO_IO_CONF, orion_read(GPIO_IO_CONF));
+	printk(KERN_DEBUG "GPIO_BLINK_EN (0x%08x) = 0x%08x\n",
+				GPIO_BLINK_EN, orion_read(GPIO_BLINK_EN));
+	printk(KERN_DEBUG "GPIO_IN_POL (0x%08x) = 0x%08x\n",
+				GPIO_IN_POL, orion_read(GPIO_IN_POL));
+	printk(KERN_DEBUG "GPIO_DATA_IN (0x%08x) = 0x%08x\n",
+				GPIO_DATA_IN, orion_read(GPIO_DATA_IN));
+	printk(KERN_DEBUG "GPIO_LEVEL_MASK (0x%08x) = 0x%08x\n",
+				GPIO_LEVEL_MASK, orion_read(GPIO_LEVEL_MASK));
+	printk(KERN_DEBUG "GPIO_EDGE_CAUSE (0x%08x) = 0x%08x\n",
+				GPIO_EDGE_CAUSE, orion_read(GPIO_EDGE_CAUSE));
+	printk(KERN_DEBUG "GPIO_EDGE_MASK (0x%08x) = 0x%08x\n",
+				GPIO_EDGE_MASK, orion_read(GPIO_EDGE_MASK));
+}
diff --git a/include/asm-arm/arch-orion/gpio.h b/include/asm-arm/arch-orion/gpio.h
new file mode 100644
index 000000000000..6d5848ed9a39
--- /dev/null
+++ b/include/asm-arm/arch-orion/gpio.h
@@ -0,0 +1,27 @@
+/*
+ * include/asm-arm/arch-orion/gpio.h
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+extern int gpio_request(unsigned pin, const char *label);
+extern void gpio_free(unsigned pin);
+extern int gpio_direction_input(unsigned pin);
+extern int gpio_direction_output(unsigned pin, int value);
+extern int gpio_get_value(unsigned pin);
+extern void gpio_set_value(unsigned pin, int value);
+extern void gpio_display(void);		/* debug */
+
+static inline int gpio_to_irq(int pin)
+{
+	return pin + IRQ_ORION_GPIO_START;
+}
+
+static inline int irq_to_gpio(int irq)
+{
+	return irq - IRQ_ORION_GPIO_START;
+}
+
+#include <asm-generic/gpio.h>		/* cansleep wrappers */
-- 
cgit v1.2.3-59-g8ed1b


From b11e9e020c8c6cdd7e7cc6d5178cce2ad0ac0784 Mon Sep 17 00:00:00 2001
From: Herbert Valerio Riedel <hvr@gnu.org>
Date: Thu, 29 Nov 2007 15:19:56 +0100
Subject: [ARM] Orion: provide GPIO method for enabling hardware assisted
 blinking

This is a pre-requisite for implementing proper hardware accelerated
GPIO LED flashing, and since we want proper locking, it's sensible to provide
the orion specific orion_gpio_set_blink() implementation within
mach-orion/gpio.c. The functions orion_gpio_set_blink() and gpio_set_value()
implicitly turn off each others state.

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Acked-by: Tzachi Perelstein <tzachi@marvell.com>
Acked-by: Nicolas Pitre <nico@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-orion/gpio.c        | 19 +++++++++++++++++++
 include/asm-arm/arch-orion/gpio.h |  1 +
 2 files changed, 20 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-orion/gpio.c b/arch/arm/mach-orion/gpio.c
index af8553ccd230..0418f5b1ebe7 100644
--- a/arch/arm/mach-orion/gpio.c
+++ b/arch/arm/mach-orion/gpio.c
@@ -76,6 +76,7 @@ int gpio_direction_output(unsigned pin, int value)
 		gpio_label[pin] = "?";
 
 	mask = 1 << pin;
+	orion_clrbits(GPIO_BLINK_EN, mask);
 	if (value)
 		orion_setbits(GPIO_OUT, mask);
 	else
@@ -107,6 +108,7 @@ void gpio_set_value(unsigned pin, int value)
 
 	spin_lock_irqsave(&gpio_lock, flags);
 
+	orion_clrbits(GPIO_BLINK_EN, mask);
 	if (value)
 		orion_setbits(GPIO_OUT, mask);
 	else
@@ -116,6 +118,23 @@ void gpio_set_value(unsigned pin, int value)
 }
 EXPORT_SYMBOL(gpio_set_value);
 
+void orion_gpio_set_blink(unsigned pin, int blink)
+{
+	unsigned long flags;
+	int mask = 1 << pin;
+
+	spin_lock_irqsave(&gpio_lock, flags);
+
+	orion_clrbits(GPIO_OUT, mask);
+	if (blink)
+		orion_setbits(GPIO_BLINK_EN, mask);
+	else
+		orion_clrbits(GPIO_BLINK_EN, mask);
+
+	spin_unlock_irqrestore(&gpio_lock, flags);
+}
+EXPORT_SYMBOL(orion_gpio_set_blink);
+
 int gpio_request(unsigned pin, const char *label)
 {
 	int ret = 0;
diff --git a/include/asm-arm/arch-orion/gpio.h b/include/asm-arm/arch-orion/gpio.h
index 6d5848ed9a39..d66284f9a14c 100644
--- a/include/asm-arm/arch-orion/gpio.h
+++ b/include/asm-arm/arch-orion/gpio.h
@@ -12,6 +12,7 @@ extern int gpio_direction_input(unsigned pin);
 extern int gpio_direction_output(unsigned pin, int value);
 extern int gpio_get_value(unsigned pin);
 extern void gpio_set_value(unsigned pin, int value);
+extern void orion_gpio_set_blink(unsigned pin, int blink);
 extern void gpio_display(void);		/* debug */
 
 static inline int gpio_to_irq(int pin)
-- 
cgit v1.2.3-59-g8ed1b


From 3085de6a82821e3d227e8fae7403dc7a5dc27932 Mon Sep 17 00:00:00 2001
From: Tzachi Perelstein <tzachi@marvell.com>
Date: Tue, 23 Oct 2007 15:14:42 -0400
Subject: [ARM] Orion: IRQ support

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-orion/Makefile |   2 +-
 arch/arm/mach-orion/common.h |   1 +
 arch/arm/mach-orion/irq.c    | 160 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 162 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-orion/irq.c

(limited to 'arch')

diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
index d6a6c86faafc..57d459a2090e 100644
--- a/arch/arm/mach-orion/Makefile
+++ b/arch/arm/mach-orion/Makefile
@@ -1 +1 @@
-obj-y  += common.o addr-map.o pci.o gpio.o
+obj-y  += common.o addr-map.o pci.o gpio.o irq.o
diff --git a/arch/arm/mach-orion/common.h b/arch/arm/mach-orion/common.h
index a6a7af189b0e..155371e1d672 100644
--- a/arch/arm/mach-orion/common.h
+++ b/arch/arm/mach-orion/common.h
@@ -6,6 +6,7 @@
  */
 
 void __init orion_map_io(void);
+void __init orion_init_irq(void);
 void __init orion_init(void);
 
 /*
diff --git a/arch/arm/mach-orion/irq.c b/arch/arm/mach-orion/irq.c
new file mode 100644
index 000000000000..585a0fb06262
--- /dev/null
+++ b/arch/arm/mach-orion/irq.c
@@ -0,0 +1,160 @@
+/*
+ * arch/arm/mach-orion/irq.c
+ *
+ * Core IRQ functions for Marvell Orion System On Chip
+ *
+ * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <asm/gpio.h>
+#include <asm/arch/orion.h>
+#include "common.h"
+
+/*****************************************************************************
+ * Orion GPIO IRQ
+ ****************************************************************************/
+static void orion_gpio_irq_mask(u32 irq)
+{
+	int pin = irq_to_gpio(irq);
+	orion_clrbits(GPIO_LEVEL_MASK, 1 << pin);
+}
+
+static void orion_gpio_irq_unmask(u32 irq)
+{
+	int pin = irq_to_gpio(irq);
+	orion_setbits(GPIO_LEVEL_MASK, 1 << pin);
+}
+
+static int orion_gpio_set_irq_type(u32 irq, u32 type)
+{
+	int pin = irq_to_gpio(irq);
+
+	if ((orion_read(GPIO_IO_CONF) & (1 << pin)) == 0) {
+		printk(KERN_ERR "orion_gpio_set_irq_type failed "
+				"(irq %d, pin %d).\n", irq, pin);
+		return -EINVAL;
+	}
+
+	switch (type) {
+	case IRQT_HIGH:
+		orion_clrbits(GPIO_IN_POL, (1 << pin));
+		break;
+	case IRQT_LOW:
+		orion_setbits(GPIO_IN_POL, (1 << pin));
+		break;
+	default:
+		printk(KERN_ERR "failed to set irq=%d (type=%d)\n", irq, type);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static struct irq_chip orion_gpio_irq_chip = {
+	.name		= "Orion-IRQ-GPIO",
+	.ack		= orion_gpio_irq_mask,
+	.mask		= orion_gpio_irq_mask,
+	.unmask		= orion_gpio_irq_unmask,
+	.set_type	= orion_gpio_set_irq_type,
+};
+
+static void orion_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	int i;
+	u32 cause, shift;
+
+	BUG_ON(irq < IRQ_ORION_GPIO_0_7 || irq > IRQ_ORION_GPIO_24_31);
+	shift = (irq - IRQ_ORION_GPIO_0_7) * 8;
+	cause = orion_read(GPIO_EDGE_CAUSE) & orion_read(GPIO_LEVEL_MASK);
+	cause &= (0xff << shift);
+
+	for (i = shift; i < shift + 8; i++) {
+		if (cause & (1 << i)) {
+			int gpio_irq = i + IRQ_ORION_GPIO_START;
+			if (gpio_irq > 0) {
+				desc = irq_desc + gpio_irq;
+				desc_handle_irq(gpio_irq, desc);
+			} else {
+				printk(KERN_ERR "orion_gpio_irq_handler error, "
+						"invalid irq %d\n", gpio_irq);
+			}
+		}
+	}
+}
+
+static void __init orion_init_gpio_irq(void)
+{
+	int i;
+
+	/*
+	 * Mask and clear GPIO IRQ interrupts
+	 */
+	orion_write(GPIO_LEVEL_MASK, 0x0);
+	orion_write(GPIO_EDGE_CAUSE, 0x0);
+
+	/*
+	 * Register chained level handlers for GPIO IRQs
+	 */
+	for (i = IRQ_ORION_GPIO_START; i < NR_IRQS; i++) {
+		set_irq_chip(i, &orion_gpio_irq_chip);
+		set_irq_handler(i, handle_level_irq);
+		set_irq_flags(i, IRQF_VALID);
+	}
+	set_irq_chained_handler(IRQ_ORION_GPIO_0_7, orion_gpio_irq_handler);
+	set_irq_chained_handler(IRQ_ORION_GPIO_8_15, orion_gpio_irq_handler);
+	set_irq_chained_handler(IRQ_ORION_GPIO_16_23, orion_gpio_irq_handler);
+	set_irq_chained_handler(IRQ_ORION_GPIO_24_31, orion_gpio_irq_handler);
+}
+
+/*****************************************************************************
+ * Orion Main IRQ
+ ****************************************************************************/
+static void orion_main_irq_mask(u32 irq)
+{
+	orion_clrbits(MAIN_IRQ_MASK, 1 << irq);
+}
+
+static void orion_main_irq_unmask(u32 irq)
+{
+	orion_setbits(MAIN_IRQ_MASK, 1 << irq);
+}
+
+static struct irq_chip orion_main_irq_chip = {
+	.name		= "Orion-IRQ-Main",
+	.ack		= orion_main_irq_mask,
+	.mask		= orion_main_irq_mask,
+	.unmask		= orion_main_irq_unmask,
+};
+
+static void __init orion_init_main_irq(void)
+{
+	int i;
+
+	/*
+	 * Mask and clear Main IRQ interrupts
+	 */
+	orion_write(MAIN_IRQ_MASK, 0x0);
+	orion_write(MAIN_IRQ_CAUSE, 0x0);
+
+	/*
+	 * Register level handler for Main IRQs
+	 */
+	for (i = 0; i < IRQ_ORION_GPIO_START; i++) {
+		set_irq_chip(i, &orion_main_irq_chip);
+		set_irq_handler(i, handle_level_irq);
+		set_irq_flags(i, IRQF_VALID);
+	}
+}
+
+void __init orion_init_irq(void)
+{
+	orion_init_main_irq();
+	orion_init_gpio_irq();
+}
-- 
cgit v1.2.3-59-g8ed1b


From f00666140cb84cd80276c9a874198874890d5733 Mon Sep 17 00:00:00 2001
From: Tzachi Perelstein <tzachi@marvell.com>
Date: Thu, 15 Nov 2007 10:57:48 +0200
Subject: [ARM] Orion edge GPIO IRQ support

This patch adds support for Orion edge sensitive GPIO IRQs.

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
CC: Thomas Gleixner <tglx@linutronix.de>
---
 arch/arm/mach-orion/gpio.c |   2 +-
 arch/arm/mach-orion/irq.c  | 119 +++++++++++++++++++++++++++++++++++++--------
 2 files changed, 101 insertions(+), 20 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-orion/gpio.c b/arch/arm/mach-orion/gpio.c
index 0418f5b1ebe7..d5f00c86d616 100644
--- a/arch/arm/mach-orion/gpio.c
+++ b/arch/arm/mach-orion/gpio.c
@@ -93,7 +93,7 @@ int gpio_get_value(unsigned pin)
 	int val, mask = 1 << pin;
 
 	if (orion_read(GPIO_IO_CONF) & mask)
-		val = orion_read(GPIO_DATA_IN);
+		val = orion_read(GPIO_DATA_IN) ^ orion_read(GPIO_IN_POL);
 	else
 		val = orion_read(GPIO_OUT);
 
diff --git a/arch/arm/mach-orion/irq.c b/arch/arm/mach-orion/irq.c
index 585a0fb06262..df7e12ad378b 100644
--- a/arch/arm/mach-orion/irq.c
+++ b/arch/arm/mach-orion/irq.c
@@ -19,22 +19,66 @@
 
 /*****************************************************************************
  * Orion GPIO IRQ
+ *
+ * GPIO_IN_POL register controlls whether GPIO_DATA_IN will hold the same
+ * value of the line or the opposite value.
+ *
+ * Level IRQ handlers: DATA_IN is used directly as cause register.
+ *                     Interrupt are masked by LEVEL_MASK registers.
+ * Edge IRQ handlers:  Change in DATA_IN are latched in EDGE_CAUSE.
+ *                     Interrupt are masked by EDGE_MASK registers.
+ * Both-edge handlers: Similar to regular Edge handlers, but also swaps
+ *                     the polarity to catch the next line transaction.
+ *                     This is a race condition that might not perfectly
+ *                     work on some use cases.
+ *
+ * Every eight GPIO lines are grouped (OR'ed) before going up to main
+ * cause register.
+ *
+ *                    EDGE  cause    mask
+ *        data-in   /--------| |-----| |----\
+ *     -----| |-----                         ---- to main cause reg
+ *           X      \----------------| |----/
+ *        polarity    LEVEL          mask
+ *
  ****************************************************************************/
+static void orion_gpio_irq_ack(u32 irq)
+{
+	int pin = irq_to_gpio(irq);
+	if (irq_desc[irq].status & IRQ_LEVEL)
+		/*
+		 * Mask bit for level interrupt
+		 */
+		orion_clrbits(GPIO_LEVEL_MASK, 1 << pin);
+	else
+		/*
+		 * Clear casue bit for egde interrupt
+		 */
+		orion_clrbits(GPIO_EDGE_CAUSE, 1 << pin);
+}
+
 static void orion_gpio_irq_mask(u32 irq)
 {
 	int pin = irq_to_gpio(irq);
-	orion_clrbits(GPIO_LEVEL_MASK, 1 << pin);
+	if (irq_desc[irq].status & IRQ_LEVEL)
+		orion_clrbits(GPIO_LEVEL_MASK, 1 << pin);
+	else
+		orion_clrbits(GPIO_EDGE_MASK, 1 << pin);
 }
 
 static void orion_gpio_irq_unmask(u32 irq)
 {
 	int pin = irq_to_gpio(irq);
-	orion_setbits(GPIO_LEVEL_MASK, 1 << pin);
+	if (irq_desc[irq].status & IRQ_LEVEL)
+		orion_setbits(GPIO_LEVEL_MASK, 1 << pin);
+	else
+		orion_setbits(GPIO_EDGE_MASK, 1 << pin);
 }
 
 static int orion_gpio_set_irq_type(u32 irq, u32 type)
 {
 	int pin = irq_to_gpio(irq);
+	struct irq_desc *desc;
 
 	if ((orion_read(GPIO_IO_CONF) & (1 << pin)) == 0) {
 		printk(KERN_ERR "orion_gpio_set_irq_type failed "
@@ -42,24 +86,56 @@ static int orion_gpio_set_irq_type(u32 irq, u32 type)
 		return -EINVAL;
 	}
 
+	desc = irq_desc + irq;
+
 	switch (type) {
 	case IRQT_HIGH:
+		desc->handle_irq = handle_level_irq;
+		desc->status |= IRQ_LEVEL;
 		orion_clrbits(GPIO_IN_POL, (1 << pin));
 		break;
 	case IRQT_LOW:
+		desc->handle_irq = handle_level_irq;
+		desc->status |= IRQ_LEVEL;
+		orion_setbits(GPIO_IN_POL, (1 << pin));
+		break;
+	case IRQT_RISING:
+		desc->handle_irq = handle_edge_irq;
+		desc->status &= ~IRQ_LEVEL;
+		orion_clrbits(GPIO_IN_POL, (1 << pin));
+		break;
+	case IRQT_FALLING:
+		desc->handle_irq = handle_edge_irq;
+		desc->status &= ~IRQ_LEVEL;
 		orion_setbits(GPIO_IN_POL, (1 << pin));
+		break;
+	case IRQT_BOTHEDGE:
+		desc->handle_irq = handle_edge_irq;
+		desc->status &= ~IRQ_LEVEL;
+		/*
+		 * set initial polarity based on current input level
+		 */
+		if ((orion_read(GPIO_IN_POL) ^ orion_read(GPIO_DATA_IN))
+		    & (1 << pin))
+			orion_setbits(GPIO_IN_POL, (1 << pin)); /* falling */
+		else
+			orion_clrbits(GPIO_IN_POL, (1 << pin)); /* rising */
+
 		break;
 	default:
 		printk(KERN_ERR "failed to set irq=%d (type=%d)\n", irq, type);
 		return -EINVAL;
 	}
 
+	desc->status &= ~IRQ_TYPE_SENSE_MASK;
+	desc->status |= type & IRQ_TYPE_SENSE_MASK;
+
 	return 0;
 }
 
 static struct irq_chip orion_gpio_irq_chip = {
 	.name		= "Orion-IRQ-GPIO",
-	.ack		= orion_gpio_irq_mask,
+	.ack		= orion_gpio_irq_ack,
 	.mask		= orion_gpio_irq_mask,
 	.unmask		= orion_gpio_irq_unmask,
 	.set_type	= orion_gpio_set_irq_type,
@@ -67,24 +143,24 @@ static struct irq_chip orion_gpio_irq_chip = {
 
 static void orion_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
-	int i;
-	u32 cause, shift;
+	u32 cause, offs, pin;
 
 	BUG_ON(irq < IRQ_ORION_GPIO_0_7 || irq > IRQ_ORION_GPIO_24_31);
-	shift = (irq - IRQ_ORION_GPIO_0_7) * 8;
-	cause = orion_read(GPIO_EDGE_CAUSE) & orion_read(GPIO_LEVEL_MASK);
-	cause &= (0xff << shift);
-
-	for (i = shift; i < shift + 8; i++) {
-		if (cause & (1 << i)) {
-			int gpio_irq = i + IRQ_ORION_GPIO_START;
-			if (gpio_irq > 0) {
-				desc = irq_desc + gpio_irq;
-				desc_handle_irq(gpio_irq, desc);
-			} else {
-				printk(KERN_ERR "orion_gpio_irq_handler error, "
-						"invalid irq %d\n", gpio_irq);
+	offs = (irq - IRQ_ORION_GPIO_0_7) * 8;
+	cause = (orion_read(GPIO_DATA_IN) & orion_read(GPIO_LEVEL_MASK)) |
+		(orion_read(GPIO_EDGE_CAUSE) & orion_read(GPIO_EDGE_MASK));
+
+	for (pin = offs; pin < offs + 8; pin++) {
+		if (cause & (1 << pin)) {
+			irq = gpio_to_irq(pin);
+			desc = irq_desc + irq;
+			if ((desc->status & IRQ_TYPE_SENSE_MASK) == IRQT_BOTHEDGE) {
+				/* Swap polarity (race with GPIO line) */
+				u32 polarity = orion_read(GPIO_IN_POL);
+				polarity ^= 1 << pin;
+				orion_write(GPIO_IN_POL, polarity);
 			}
+			desc_handle_irq(irq, desc);
 		}
 	}
 }
@@ -92,19 +168,24 @@ static void orion_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 static void __init orion_init_gpio_irq(void)
 {
 	int i;
+	struct irq_desc *desc;
 
 	/*
 	 * Mask and clear GPIO IRQ interrupts
 	 */
 	orion_write(GPIO_LEVEL_MASK, 0x0);
+	orion_write(GPIO_EDGE_MASK, 0x0);
 	orion_write(GPIO_EDGE_CAUSE, 0x0);
 
 	/*
-	 * Register chained level handlers for GPIO IRQs
+	 * Register chained level handlers for GPIO IRQs by default.
+	 * User can use set_type() if he wants to use edge types handlers.
 	 */
 	for (i = IRQ_ORION_GPIO_START; i < NR_IRQS; i++) {
 		set_irq_chip(i, &orion_gpio_irq_chip);
 		set_irq_handler(i, handle_level_irq);
+		desc = irq_desc + i;
+		desc->status |= IRQ_LEVEL;
 		set_irq_flags(i, IRQF_VALID);
 	}
 	set_irq_chained_handler(IRQ_ORION_GPIO_0_7, orion_gpio_irq_handler);
-- 
cgit v1.2.3-59-g8ed1b


From 51cbff1d6f1946f97b847f9a144737eca20ede84 Mon Sep 17 00:00:00 2001
From: Tzachi Perelstein <tzachi@marvell.com>
Date: Tue, 23 Oct 2007 15:14:42 -0400
Subject: [ARM] Orion: system timer support

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig             |   2 +
 arch/arm/mach-orion/Makefile |   2 +-
 arch/arm/mach-orion/common.h |   5 ++
 arch/arm/mach-orion/time.c   | 181 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 189 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-orion/time.c

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 71e905ebcc05..20084f273d8e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -338,6 +338,8 @@ config ARCH_ORION
 	depends on MMU
 	select PCI
 	select GENERIC_GPIO
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
 	help
 	  Support for Marvell Orion System on Chip family.
 
diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
index 57d459a2090e..3b2a3eef39dd 100644
--- a/arch/arm/mach-orion/Makefile
+++ b/arch/arm/mach-orion/Makefile
@@ -1 +1 @@
-obj-y  += common.o addr-map.o pci.o gpio.o irq.o
+obj-y  += common.o addr-map.o pci.o gpio.o irq.o time.o
diff --git a/arch/arm/mach-orion/common.h b/arch/arm/mach-orion/common.h
index 155371e1d672..2b452facadd1 100644
--- a/arch/arm/mach-orion/common.h
+++ b/arch/arm/mach-orion/common.h
@@ -62,4 +62,9 @@ int orion_pci_hw_wr_conf(u32 bus, u32 dev, u32 func, u32 where, u32 size, u32 va
 void __init orion_gpio_set_valid_pins(u32 pins);
 void gpio_display(void);	/* debug */
 
+/*
+ * Orion system timer (clocksource + clockevnt, /mach-orion/time.c)
+ */
+extern struct sys_timer orion_timer;
+
 #endif /* __ARCH_ORION_COMMON_H__ */
diff --git a/arch/arm/mach-orion/time.c b/arch/arm/mach-orion/time.c
new file mode 100644
index 000000000000..bd4262da4f40
--- /dev/null
+++ b/arch/arm/mach-orion/time.c
@@ -0,0 +1,181 @@
+/*
+ * arch/arm/mach-orion/time.c
+ *
+ * Core time functions for Marvell Orion System On Chip
+ *
+ * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/clockchips.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <asm/mach/time.h>
+#include <asm/arch/orion.h>
+#include "common.h"
+
+/*
+ * Timer0: clock_event_device, Tick.
+ * Timer1: clocksource, Free running.
+ * WatchDog: Not used.
+ *
+ * Timers are counting down.
+ */
+#define CLOCKEVENT	0
+#define CLOCKSOURCE	1
+
+/*
+ * Timers bits
+ */
+#define BRIDGE_INT_TIMER(x)	(1 << ((x) + 1))
+#define TIMER_EN(x)		(1 << ((x) * 2))
+#define TIMER_RELOAD_EN(x)	(1 << (((x) * 2) + 1))
+#define BRIDGE_INT_TIMER_WD	(1 << 3)
+#define TIMER_WD_EN		(1 << 4)
+#define TIMER_WD_RELOAD_EN	(1 << 5)
+
+static cycle_t orion_clksrc_read(void)
+{
+	return (0xffffffff - orion_read(TIMER_VAL(CLOCKSOURCE)));
+}
+
+static struct clocksource orion_clksrc = {
+	.name		= "orion_clocksource",
+	.shift		= 20,
+	.rating		= 300,
+	.read		= orion_clksrc_read,
+	.mask		= CLOCKSOURCE_MASK(32),
+	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static int
+orion_clkevt_next_event(unsigned long delta, struct clock_event_device *dev)
+{
+	unsigned long flags;
+
+	if (delta == 0)
+		return -ETIME;
+
+	local_irq_save(flags);
+
+	/*
+	 * Clear and enable timer interrupt bit
+	 */
+	orion_write(BRIDGE_CAUSE, ~BRIDGE_INT_TIMER(CLOCKEVENT));
+	orion_setbits(BRIDGE_MASK, BRIDGE_INT_TIMER(CLOCKEVENT));
+
+	/*
+	 * Setup new timer value
+	 */
+	orion_write(TIMER_VAL(CLOCKEVENT), delta);
+
+	/*
+	 * Disable auto reload and kickoff the timer
+	 */
+	orion_clrbits(TIMER_CTRL, TIMER_RELOAD_EN(CLOCKEVENT));
+	orion_setbits(TIMER_CTRL, TIMER_EN(CLOCKEVENT));
+
+	local_irq_restore(flags);
+
+	return 0;
+}
+
+static void
+orion_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	if (mode == CLOCK_EVT_MODE_PERIODIC) {
+		/*
+		 * Setup latch cycles in timer and enable reload interrupt.
+		 */
+		orion_write(TIMER_VAL_RELOAD(CLOCKEVENT), LATCH);
+		orion_write(TIMER_VAL(CLOCKEVENT), LATCH);
+		orion_setbits(BRIDGE_MASK, BRIDGE_INT_TIMER(CLOCKEVENT));
+		orion_setbits(TIMER_CTRL, TIMER_RELOAD_EN(CLOCKEVENT) |
+					  TIMER_EN(CLOCKEVENT));
+	} else {
+		/*
+		 * Disable timer and interrupt
+		 */
+		orion_clrbits(BRIDGE_MASK, BRIDGE_INT_TIMER(CLOCKEVENT));
+		orion_write(BRIDGE_CAUSE, ~BRIDGE_INT_TIMER(CLOCKEVENT));
+		orion_clrbits(TIMER_CTRL, TIMER_RELOAD_EN(CLOCKEVENT) |
+					  TIMER_EN(CLOCKEVENT));
+	}
+
+	local_irq_restore(flags);
+}
+
+static struct clock_event_device orion_clkevt = {
+	.name		= "orion_tick",
+	.features	= CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
+	.shift		= 32,
+	.rating		= 300,
+	.cpumask	= CPU_MASK_CPU0,
+	.set_next_event	= orion_clkevt_next_event,
+	.set_mode	= orion_clkevt_mode,
+};
+
+static irqreturn_t orion_timer_interrupt(int irq, void *dev_id)
+{
+	/*
+	 * Clear cause bit and do event
+	 */
+	orion_write(BRIDGE_CAUSE, ~BRIDGE_INT_TIMER(CLOCKEVENT));
+	orion_clkevt.event_handler(&orion_clkevt);
+	return IRQ_HANDLED;
+}
+
+static struct irqaction orion_timer_irq = {
+	.name		= "orion_tick",
+	.flags		= IRQF_DISABLED | IRQF_TIMER,
+	.handler	= orion_timer_interrupt
+};
+
+static void orion_timer_init(void)
+{
+	/*
+	 * Setup clocksource free running timer (no interrupt on reload)
+	 */
+	orion_write(TIMER_VAL(CLOCKSOURCE), 0xffffffff);
+	orion_write(TIMER_VAL_RELOAD(CLOCKSOURCE), 0xffffffff);
+	orion_clrbits(BRIDGE_MASK, BRIDGE_INT_TIMER(CLOCKSOURCE));
+	orion_setbits(TIMER_CTRL, TIMER_RELOAD_EN(CLOCKSOURCE) |
+				  TIMER_EN(CLOCKSOURCE));
+
+	/*
+	 * Register clocksource
+	 */
+	orion_clksrc.mult =
+		clocksource_hz2mult(CLOCK_TICK_RATE, orion_clksrc.shift);
+
+	clocksource_register(&orion_clksrc);
+
+	/*
+	 * Connect and enable tick handler
+	 */
+	setup_irq(IRQ_ORION_BRIDGE, &orion_timer_irq);
+
+	/*
+	 * Register clockevent
+	 */
+	orion_clkevt.mult =
+		div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC, orion_clkevt.shift);
+	orion_clkevt.max_delta_ns =
+		clockevent_delta2ns(0xfffffffe, &orion_clkevt);
+	orion_clkevt.min_delta_ns =
+		clockevent_delta2ns(1, &orion_clkevt);
+
+	clockevents_register_device(&orion_clkevt);
+}
+
+struct sys_timer orion_timer = {
+	.init = orion_timer_init,
+};
-- 
cgit v1.2.3-59-g8ed1b


From ca26f7d3ed3c841e561613a9ea2f44ca899e27de Mon Sep 17 00:00:00 2001
From: Tzachi Perelstein <tzachi@marvell.com>
Date: Tue, 23 Oct 2007 15:14:42 -0400
Subject: [ARM] Orion: platform device registration for UART, USB and NAND

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-orion/common.c          | 123 ++++++++++++++++++++++++++++++++++
 include/asm-arm/arch-orion/platform.h |  25 +++++++
 2 files changed, 148 insertions(+)
 create mode 100644 include/asm-arm/arch-orion/platform.h

(limited to 'arch')

diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c
index 69363cbcb63b..ab1000eeaefe 100644
--- a/arch/arm/mach-orion/common.c
+++ b/arch/arm/mach-orion/common.c
@@ -12,6 +12,8 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
 #include <asm/page.h>
 #include <asm/timex.h>
 #include <asm/mach/map.h>
@@ -53,6 +55,119 @@ void __init orion_map_io(void)
 	iotable_init(orion_io_desc, ARRAY_SIZE(orion_io_desc));
 }
 
+/*****************************************************************************
+ * UART
+ ****************************************************************************/
+
+static struct resource orion_uart_resources[] = {
+	{
+		.start		= UART0_BASE,
+		.end		= UART0_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= IRQ_ORION_UART0,
+		.end		= IRQ_ORION_UART0,
+		.flags		= IORESOURCE_IRQ,
+	},
+	{
+		.start		= UART1_BASE,
+		.end		= UART1_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= IRQ_ORION_UART1,
+		.end		= IRQ_ORION_UART1,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct plat_serial8250_port orion_uart_data[] = {
+	{
+		.mapbase	= UART0_BASE,
+		.membase	= (char *)UART0_BASE,
+		.irq		= IRQ_ORION_UART0,
+		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= ORION_TCLK,
+	},
+	{
+		.mapbase	= UART1_BASE,
+		.membase	= (char *)UART1_BASE,
+		.irq		= IRQ_ORION_UART1,
+		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= ORION_TCLK,
+	},
+	{ },
+};
+
+static struct platform_device orion_uart = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_PLATFORM,
+	.dev			= {
+		.platform_data	= orion_uart_data,
+	},
+	.resource		= orion_uart_resources,
+	.num_resources		= ARRAY_SIZE(orion_uart_resources),
+};
+
+/*******************************************************************************
+ * USB Controller - 2 interfaces
+ ******************************************************************************/
+
+static struct resource orion_ehci0_resources[] = {
+	{
+		.start	= ORION_USB0_REG_BASE,
+		.end	= ORION_USB0_REG_BASE + SZ_4K,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_ORION_USB0_CTRL,
+		.end	= IRQ_ORION_USB0_CTRL,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct resource orion_ehci1_resources[] = {
+	{
+		.start	= ORION_USB1_REG_BASE,
+		.end	= ORION_USB1_REG_BASE + SZ_4K,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_ORION_USB1_CTRL,
+		.end	= IRQ_ORION_USB1_CTRL,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static u64 ehci_dmamask = 0xffffffffUL;
+
+static struct platform_device orion_ehci0 = {
+	.name		= "orion-ehci",
+	.id		= 0,
+	.dev		= {
+		.dma_mask		= &ehci_dmamask,
+		.coherent_dma_mask	= 0xffffffff,
+	},
+	.resource	= orion_ehci0_resources,
+	.num_resources	= ARRAY_SIZE(orion_ehci0_resources),
+};
+
+static struct platform_device orion_ehci1 = {
+	.name		= "orion-ehci",
+	.id		= 1,
+	.dev		= {
+		.dma_mask		= &ehci_dmamask,
+		.coherent_dma_mask	= 0xffffffff,
+	},
+	.resource	= orion_ehci1_resources,
+	.num_resources	= ARRAY_SIZE(orion_ehci1_resources),
+};
+
 /*****************************************************************************
  * General
  ****************************************************************************/
@@ -101,4 +216,12 @@ void __init orion_init(void)
 	orion_setup_pcie_wins();
 	if (dev == MV88F5182_DEV_ID)
 		orion_setup_sata_wins();
+
+	/*
+	 * REgister devices
+	 */
+	platform_device_register(&orion_uart);
+	platform_device_register(&orion_ehci0);
+	if (dev == MV88F5182_DEV_ID)
+		platform_device_register(&orion_ehci1);
 }
diff --git a/include/asm-arm/arch-orion/platform.h b/include/asm-arm/arch-orion/platform.h
new file mode 100644
index 000000000000..143c38e2fa0b
--- /dev/null
+++ b/include/asm-arm/arch-orion/platform.h
@@ -0,0 +1,25 @@
+/*
+ * asm-arm/arch-orion/platform.h
+ *
+ * Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_PLATFORM_H__
+#define __ASM_ARCH_PLATFORM_H__
+
+/*
+ * Device bus NAND private data
+ */
+struct orion_nand_data {
+	struct mtd_partition *parts;
+	u32 nr_parts;
+	u8 ale;		/* address line number connected to ALE */
+	u8 cle;		/* address line number connected to CLE */
+	u8 width;	/* buswidth */
+};
+
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From e07c9d85726e57914608a4e66a5dbb35863cd8fb Mon Sep 17 00:00:00 2001
From: Tzachi Perelstein <tzachi@marvell.com>
Date: Wed, 31 Oct 2007 12:42:41 +0200
Subject: [ARM] Orion: common platform setup for Gigabit Ethernet port

The Orion Ethernet port is the same port used in the Discovery
family (MV643XX). This patch include the common platform_device
stuff according to the existing mv643xx_eth conventions.

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-orion/common.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-orion/common.h |  8 ++++++++
 2 files changed, 52 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c
index ab1000eeaefe..12736fd60004 100644
--- a/arch/arm/mach-orion/common.c
+++ b/arch/arm/mach-orion/common.c
@@ -14,6 +14,7 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/serial_8250.h>
+#include <linux/mv643xx_eth.h>
 #include <asm/page.h>
 #include <asm/timex.h>
 #include <asm/mach/map.h>
@@ -168,6 +169,49 @@ static struct platform_device orion_ehci1 = {
 	.num_resources	= ARRAY_SIZE(orion_ehci1_resources),
 };
 
+/*****************************************************************************
+ * Gigabit Ethernet port
+ * (The Orion and Discovery (MV643xx) families use the same Ethernet driver)
+ ****************************************************************************/
+
+static struct resource orion_eth_shared_resources[] = {
+	{
+		.start	= ORION_ETH_REG_BASE,
+		.end	= ORION_ETH_REG_BASE + 0xffff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device orion_eth_shared = {
+	.name		= MV643XX_ETH_SHARED_NAME,
+	.id		= 0,
+	.num_resources	= 1,
+	.resource	= orion_eth_shared_resources,
+};
+
+static struct resource orion_eth_resources[] = {
+	{
+		.name	= "eth irq",
+		.start	= IRQ_ORION_ETH_SUM,
+		.end	= IRQ_ORION_ETH_SUM,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device orion_eth = {
+	.name		= MV643XX_ETH_NAME,
+	.id		= 0,
+	.num_resources	= 1,
+	.resource	= orion_eth_resources,
+};
+
+void __init orion_eth_init(struct mv643xx_eth_platform_data *eth_data)
+{
+	orion_eth.dev.platform_data = eth_data;
+	platform_device_register(&orion_eth_shared);
+	platform_device_register(&orion_eth);
+}
+
 /*****************************************************************************
  * General
  ****************************************************************************/
diff --git a/arch/arm/mach-orion/common.h b/arch/arm/mach-orion/common.h
index 2b452facadd1..06c10c06f03e 100644
--- a/arch/arm/mach-orion/common.h
+++ b/arch/arm/mach-orion/common.h
@@ -67,4 +67,12 @@ void gpio_display(void);	/* debug */
  */
 extern struct sys_timer orion_timer;
 
+/*
+ * Pull in Orion Ethernet platform_data, used by machine-setup
+ */
+
+struct mv643xx_eth_platform_data;
+
+void __init orion_eth_init(struct mv643xx_eth_platform_data *eth_data);
+
 #endif /* __ARCH_ORION_COMMON_H__ */
-- 
cgit v1.2.3-59-g8ed1b


From e448b12cdacd4b26747480250df843b734896ae5 Mon Sep 17 00:00:00 2001
From: Tzachi Perelstein <tzachi@marvell.com>
Date: Tue, 23 Oct 2007 15:14:42 -0400
Subject: [ARM] Orion: support for Marvell Orion-2 (88F5281) Development Board

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-orion/Kconfig           |   7 +
 arch/arm/mach-orion/Makefile          |   3 +-
 arch/arm/mach-orion/db88f5281-setup.c | 364 ++++++++++++++++++++++++++++++++++
 3 files changed, 373 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-orion/db88f5281-setup.c

(limited to 'arch')

diff --git a/arch/arm/mach-orion/Kconfig b/arch/arm/mach-orion/Kconfig
index c2af02125ce9..5c1dee8724c1 100644
--- a/arch/arm/mach-orion/Kconfig
+++ b/arch/arm/mach-orion/Kconfig
@@ -2,6 +2,13 @@ if ARCH_ORION
 
 menu "Orion Implementations"
 
+config MACH_DB88F5281
+	bool "Marvell Orion-2 Development Board"
+	select I2C_BOARDINFO
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Marvell Orion-2 (88F5281) Development Board
+
 endmenu
 
 endif
diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
index 3b2a3eef39dd..55c59bb7f1d9 100644
--- a/arch/arm/mach-orion/Makefile
+++ b/arch/arm/mach-orion/Makefile
@@ -1 +1,2 @@
-obj-y  += common.o addr-map.o pci.o gpio.o irq.o time.o
+obj-y				+= common.o addr-map.o pci.o gpio.o irq.o time.o
+obj-$(CONFIG_MACH_DB88F5281)	+= db88f5281-setup.o
diff --git a/arch/arm/mach-orion/db88f5281-setup.c b/arch/arm/mach-orion/db88f5281-setup.c
new file mode 100644
index 000000000000..cb2a95ce5b57
--- /dev/null
+++ b/arch/arm/mach-orion/db88f5281-setup.c
@@ -0,0 +1,364 @@
+/*
+ * arch/arm/mach-orion/db88f5281-setup.c
+ *
+ * Marvell Orion-2 Development Board Setup
+ *
+ * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/nand.h>
+#include <linux/timer.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/i2c.h>
+#include <asm/mach-types.h>
+#include <asm/gpio.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <asm/arch/orion.h>
+#include <asm/arch/platform.h>
+#include "common.h"
+
+/*****************************************************************************
+ * DB-88F5281 on board devices
+ ****************************************************************************/
+
+/*
+ * 512K NOR flash Device bus boot chip select
+ */
+
+#define DB88F5281_NOR_BOOT_BASE		0xf4000000
+#define DB88F5281_NOR_BOOT_SIZE		SZ_512K
+
+/*
+ * 7-Segment on Device bus chip select 0
+ */
+
+#define DB88F5281_7SEG_BASE		0xfa000000
+#define DB88F5281_7SEG_SIZE		SZ_1K
+
+/*
+ * 32M NOR flash on Device bus chip select 1
+ */
+
+#define DB88F5281_NOR_BASE		0xfc000000
+#define DB88F5281_NOR_SIZE		SZ_32M
+
+/*
+ * 32M NAND flash on Device bus chip select 2
+ */
+
+#define DB88F5281_NAND_BASE		0xfa800000
+#define DB88F5281_NAND_SIZE		SZ_1K
+
+/*
+ * PCI
+ */
+
+#define DB88F5281_PCI_SLOT0_OFFS		7
+#define DB88F5281_PCI_SLOT0_IRQ_PIN		12
+#define DB88F5281_PCI_SLOT1_SLOT2_IRQ_PIN	13
+
+/*****************************************************************************
+ * 512M NOR Flash on Device bus Boot CS
+ ****************************************************************************/
+
+static struct physmap_flash_data db88f5281_boot_flash_data = {
+	.width		= 1,	/* 8 bit bus width */
+};
+
+static struct resource db88f5281_boot_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+	.start		= DB88F5281_NOR_BOOT_BASE,
+	.end		= DB88F5281_NOR_BOOT_BASE + DB88F5281_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device db88f5281_boot_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &db88f5281_boot_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &db88f5281_boot_flash_resource,
+};
+
+/*****************************************************************************
+ * 32M NOR Flash on Device bus CS1
+ ****************************************************************************/
+
+static struct physmap_flash_data db88f5281_nor_flash_data = {
+	.width		= 4,	/* 32 bit bus width */
+};
+
+static struct resource db88f5281_nor_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+	.start		= DB88F5281_NOR_BASE,
+	.end		= DB88F5281_NOR_BASE + DB88F5281_NOR_SIZE - 1,
+};
+
+static struct platform_device db88f5281_nor_flash = {
+	.name		= "physmap-flash",
+	.id		= 1,
+	.dev		= {
+		.platform_data = &db88f5281_nor_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &db88f5281_nor_flash_resource,
+};
+
+/*****************************************************************************
+ * 32M NAND Flash on Device bus CS2
+ ****************************************************************************/
+
+static struct mtd_partition db88f5281_nand_parts[] = {
+	{
+		.name = "kernel",
+		.offset = 0,
+		.size = SZ_2M,
+	},
+	{
+		.name = "root",
+		.offset = SZ_2M,
+		.size = (SZ_16M - SZ_2M),
+	},
+	{
+		.name = "user",
+		.offset = SZ_16M,
+		.size = SZ_8M,
+	},
+	{
+		.name = "recovery",
+		.offset = (SZ_16M + SZ_8M),
+		.size = SZ_8M,
+	},
+};
+
+static struct resource db88f5281_nand_resource = {
+	.flags		= IORESOURCE_MEM,
+	.start		= DB88F5281_NAND_BASE,
+	.end		= DB88F5281_NAND_BASE + DB88F5281_NAND_SIZE - 1,
+};
+
+static struct orion_nand_data db88f5281_nand_data = {
+	.parts		= db88f5281_nand_parts,
+	.nr_parts	= ARRAY_SIZE(db88f5281_nand_parts),
+	.cle		= 0,
+	.ale		= 1,
+	.width		= 8,
+};
+
+static struct platform_device db88f5281_nand_flash = {
+	.name		= "orion_nand",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &db88f5281_nand_data,
+	},
+	.resource	= &db88f5281_nand_resource,
+	.num_resources	= 1,
+};
+
+/*****************************************************************************
+ * 7-Segment on Device bus CS0
+ * Dummy counter every 2 sec
+ ****************************************************************************/
+
+static void __iomem *db88f5281_7seg;
+static struct timer_list db88f5281_timer;
+
+static void db88f5281_7seg_event(unsigned long data)
+{
+	static int count = 0;
+	writel(0, db88f5281_7seg + (count << 4));
+	count = (count + 1) & 7;
+	mod_timer(&db88f5281_timer, jiffies + 2 * HZ);
+}
+
+static int __init db88f5281_7seg_init(void)
+{
+	if (machine_is_db88f5281()) {
+		db88f5281_7seg = ioremap(DB88F5281_7SEG_BASE,
+					DB88F5281_7SEG_SIZE);
+		if (!db88f5281_7seg) {
+			printk(KERN_ERR "Failed to ioremap db88f5281_7seg\n");
+			return -EIO;
+		}
+		setup_timer(&db88f5281_timer, db88f5281_7seg_event, 0);
+		mod_timer(&db88f5281_timer, jiffies + 2 * HZ);
+	}
+
+	return 0;
+}
+
+__initcall(db88f5281_7seg_init);
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+void __init db88f5281_pci_preinit(void)
+{
+	int pin;
+
+	/*
+	 * Configure PCI GPIO IRQ pins
+	 */
+	pin = DB88F5281_PCI_SLOT0_IRQ_PIN;
+	if (gpio_request(pin, "PCI Int1") == 0) {
+		if (gpio_direction_input(pin) == 0) {
+			set_irq_type(gpio_to_irq(pin), IRQT_LOW);
+		} else {
+			printk(KERN_ERR "db88f5281_pci_preinit faield to "
+					"set_irq_type pin %d\n", pin);
+			gpio_free(pin);
+		}
+	} else {
+		printk(KERN_ERR "db88f5281_pci_preinit failed to gpio_request %d\n", pin);
+	}
+
+	pin = DB88F5281_PCI_SLOT1_SLOT2_IRQ_PIN;
+	if (gpio_request(pin, "PCI Int2") == 0) {
+		if (gpio_direction_input(pin) == 0) {
+			set_irq_type(gpio_to_irq(pin), IRQT_LOW);
+		} else {
+			printk(KERN_ERR "db88f5281_pci_preinit faield "
+					"to set_irq_type pin %d\n", pin);
+			gpio_free(pin);
+		}
+	} else {
+		printk(KERN_ERR "db88f5281_pci_preinit failed to gpio_request %d\n", pin);
+	}
+}
+
+static int __init db88f5281_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	/*
+	 * PCIE IRQ is connected internally (not GPIO)
+	 */
+	if (dev->bus->number == orion_pcie_local_bus_nr())
+		return IRQ_ORION_PCIE0_INT;
+
+	/*
+	 * PCI IRQs are connected via GPIOs
+	 */
+	switch (slot - DB88F5281_PCI_SLOT0_OFFS) {
+	case 0:
+		return gpio_to_irq(DB88F5281_PCI_SLOT0_IRQ_PIN);
+	case 1:
+	case 2:
+		return gpio_to_irq(DB88F5281_PCI_SLOT1_SLOT2_IRQ_PIN);
+	default:
+		return -1;
+	}
+}
+
+static struct hw_pci db88f5281_pci __initdata = {
+	.nr_controllers	= 2,
+	.preinit	= db88f5281_pci_preinit,
+	.swizzle	= pci_std_swizzle,
+	.setup		= orion_pci_sys_setup,
+	.scan		= orion_pci_sys_scan_bus,
+	.map_irq	= db88f5281_pci_map_irq,
+};
+
+static int __init db88f5281_pci_init(void)
+{
+	if (machine_is_db88f5281())
+		pci_common_init(&db88f5281_pci);
+
+	return 0;
+}
+
+subsys_initcall(db88f5281_pci_init);
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+static struct mv643xx_eth_platform_data db88f5281_eth_data = {
+	.phy_addr	= 8,
+	.force_phy_addr = 1,
+};
+
+/*****************************************************************************
+ * RTC DS1339 on I2C bus
+ ****************************************************************************/
+static struct i2c_board_info __initdata db88f5281_i2c_rtc = {
+	.driver_name	= "rtc-ds1307",
+	.type		= "ds1339",
+	.addr		= 0x68,
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+
+static struct platform_device *db88f5281_devs[] __initdata = {
+	&db88f5281_boot_flash,
+	&db88f5281_nor_flash,
+	&db88f5281_nand_flash,
+};
+
+static void __init db88f5281_init(void)
+{
+	/*
+	 * Basic Orion setup. Need to be called early.
+	 */
+	orion_init();
+
+	/*
+	 * Setup the CPU address decode windows for our on-board devices
+	 */
+	orion_setup_cpu_win(ORION_DEV_BOOT, DB88F5281_NOR_BOOT_BASE,
+				DB88F5281_NOR_BOOT_SIZE, -1);
+	orion_setup_cpu_win(ORION_DEV0,	DB88F5281_7SEG_BASE,
+				DB88F5281_7SEG_SIZE, -1);
+	orion_setup_cpu_win(ORION_DEV1, DB88F5281_NOR_BASE,
+				DB88F5281_NOR_SIZE, -1);
+	orion_setup_cpu_win(ORION_DEV2,	DB88F5281_NAND_BASE,
+				DB88F5281_NAND_SIZE, -1);
+
+	/*
+	 * Setup Multiplexing Pins:
+	 * MPP0: GPIO (USB Over Current)	MPP1: GPIO (USB Vbat input)
+	 * MPP2: PCI_REQn[2]			MPP3: PCI_GNTn[2]
+	 * MPP4: PCI_REQn[3]			MPP5: PCI_GNTn[3]
+	 * MPP6: GPIO (JP0, CON17.2)		MPP7: GPIO (JP1, CON17.1)
+	 * MPP8: GPIO (JP2, CON11.2)		MPP9: GPIO (JP3, CON11.3)
+	 * MPP10: GPIO (RTC int)		MPP11: GPIO (Baud Rate Generator)
+	 * MPP12: GPIO (PCI int 1)		MPP13: GPIO (PCI int 2)
+	 * MPP14: NAND_REn[2]			MPP15: NAND_WEn[2]
+	 * MPP16: UART1_RX			MPP17: UART1_TX
+	 * MPP18: UART1_CTS			MPP19: UART1_RTS
+	 * MPP-DEV: DEV_D[16:31]
+	 */
+	orion_write(MPP_0_7_CTRL, 0x00222203);
+	orion_write(MPP_8_15_CTRL, 0x44000000);
+	orion_write(MPP_16_19_CTRL, 0);
+	orion_write(MPP_DEV_CTRL, 0);
+
+	orion_gpio_set_valid_pins(0x00003fc3);
+
+	platform_add_devices(db88f5281_devs, ARRAY_SIZE(db88f5281_devs));
+	i2c_register_board_info(0, &db88f5281_i2c_rtc, 1);
+	orion_eth_init(&db88f5281_eth_data);
+}
+
+MACHINE_START(DB88F5281, "Marvell Orion-2 Development Board")
+	/* Maintainer: Tzachi Perelstein <tzachi@marvell.com> */
+	.phys_io	= ORION_REGS_BASE,
+	.io_pg_offst	= ((ORION_REGS_BASE) >> 18) & 0xfffc,
+	.boot_params	= 0x00000100,
+	.init_machine	= db88f5281_init,
+	.map_io		= orion_map_io,
+	.init_irq	= orion_init_irq,
+	.timer		= &orion_timer,
+MACHINE_END
-- 
cgit v1.2.3-59-g8ed1b


From 817eb2109d28fcac8f4fd84a9ef3a761de4f8b50 Mon Sep 17 00:00:00 2001
From: Ronen Shitrit <rshitrit@marvell.com>
Date: Wed, 17 Oct 2007 14:51:34 -0400
Subject: [ARM] OrionNAS RD board support

serial, NOR, PCI and Ethernet is activated at the moment.

Signed-off-by: Ronen Shitrit <rshitrit@marvell.com>
Reviewed-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig                      |   2 +-
 arch/arm/mach-orion/Kconfig           |   7 +
 arch/arm/mach-orion/Makefile          |   1 +
 arch/arm/mach-orion/rd88f5182-setup.c | 306 ++++++++++++++++++++++++++++++++++
 4 files changed, 315 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-orion/rd88f5182-setup.c

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 20084f273d8e..a32b3b52c5c0 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -728,7 +728,7 @@ config LEDS
 		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
 		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
 		   ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
-		   ARCH_KS8695
+		   ARCH_KS8695 || MACH_RD88F5182
 	help
 	  If you say Y here, the LEDs on your machine will be used
 	  to provide useful information about your current system status.
diff --git a/arch/arm/mach-orion/Kconfig b/arch/arm/mach-orion/Kconfig
index 5c1dee8724c1..73d9f9aa283f 100644
--- a/arch/arm/mach-orion/Kconfig
+++ b/arch/arm/mach-orion/Kconfig
@@ -9,6 +9,13 @@ config MACH_DB88F5281
 	  Say 'Y' here if you want your kernel to support the
 	  Marvell Orion-2 (88F5281) Development Board
 
+config MACH_RD88F5182
+	bool "Marvell Orion-NAS Reference Design"
+	select I2C_BOARDINFO
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Marvell Orion-NAS (88F5182) RD2
+
 endmenu
 
 endif
diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
index 55c59bb7f1d9..1cbdd7513120 100644
--- a/arch/arm/mach-orion/Makefile
+++ b/arch/arm/mach-orion/Makefile
@@ -1,2 +1,3 @@
 obj-y				+= common.o addr-map.o pci.o gpio.o irq.o time.o
 obj-$(CONFIG_MACH_DB88F5281)	+= db88f5281-setup.o
+obj-$(CONFIG_MACH_RD88F5182)	+= rd88f5182-setup.o
diff --git a/arch/arm/mach-orion/rd88f5182-setup.c b/arch/arm/mach-orion/rd88f5182-setup.c
new file mode 100644
index 000000000000..026d74325d01
--- /dev/null
+++ b/arch/arm/mach-orion/rd88f5182-setup.c
@@ -0,0 +1,306 @@
+/*
+ * arch/arm/mach-orion/rd88f5182-setup.c
+ *
+ * Marvell Orion-NAS Reference Design Setup
+ *
+ * Maintainer: Ronen Shitrit <rshitrit@marvell.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/i2c.h>
+#include <asm/mach-types.h>
+#include <asm/gpio.h>
+#include <asm/leds.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <asm/arch/orion.h>
+#include <asm/arch/platform.h>
+#include "common.h"
+
+/*****************************************************************************
+ * RD-88F5182 Info
+ ****************************************************************************/
+
+/*
+ * 512K NOR flash Device bus boot chip select
+ */
+
+#define RD88F5182_NOR_BOOT_BASE		0xf4000000
+#define RD88F5182_NOR_BOOT_SIZE		SZ_512K
+
+/*
+ * 16M NOR flash on Device bus chip select 1
+ */
+
+#define RD88F5182_NOR_BASE		0xfc000000
+#define RD88F5182_NOR_SIZE		SZ_16M
+
+/*
+ * PCI
+ */
+
+#define RD88F5182_PCI_SLOT0_OFFS	7
+#define RD88F5182_PCI_SLOT0_IRQ_A_PIN	7
+#define RD88F5182_PCI_SLOT0_IRQ_B_PIN	6
+
+/*
+ * GPIO Debug LED
+ */
+
+#define RD88F5182_GPIO_DBG_LED		0
+
+/*****************************************************************************
+ * 16M NOR Flash on Device bus CS1
+ ****************************************************************************/
+
+static struct physmap_flash_data rd88f5182_nor_flash_data = {
+	.width		= 1,
+};
+
+static struct resource rd88f5182_nor_flash_resource = {
+	.flags			= IORESOURCE_MEM,
+	.start			= RD88F5182_NOR_BASE,
+	.end			= RD88F5182_NOR_BASE + RD88F5182_NOR_SIZE - 1,
+};
+
+static struct platform_device rd88f5182_nor_flash = {
+	.name			= "physmap-flash",
+	.id			= 0,
+	.dev		= {
+		.platform_data	= &rd88f5182_nor_flash_data,
+	},
+	.num_resources		= 1,
+	.resource		= &rd88f5182_nor_flash_resource,
+};
+
+#ifdef CONFIG_LEDS
+
+/*****************************************************************************
+ * Use GPIO debug led as CPU active indication
+ ****************************************************************************/
+
+static void rd88f5182_dbgled_event(led_event_t evt)
+{
+	int val;
+
+	if (evt == led_idle_end)
+		val = 1;
+	else if (evt == led_idle_start)
+		val = 0;
+	else
+		return;
+
+	gpio_set_value(RD88F5182_GPIO_DBG_LED, val);
+}
+
+static int __init rd88f5182_dbgled_init(void)
+{
+	int pin;
+
+	if (machine_is_rd88f5182()) {
+		pin = RD88F5182_GPIO_DBG_LED;
+
+		if (gpio_request(pin, "DBGLED") == 0) {
+			if (gpio_direction_output(pin, 0) != 0) {
+				printk(KERN_ERR "rd88f5182_dbgled_init failed "
+						"to set output pin %d\n", pin);
+				gpio_free(pin);
+				return 0;
+			}
+		} else {
+			printk(KERN_ERR "rd88f5182_dbgled_init failed "
+					"to request gpio %d\n", pin);
+			return 0;
+		}
+
+		leds_event = rd88f5182_dbgled_event;
+	}
+	return 0;
+}
+
+__initcall(rd88f5182_dbgled_init);
+
+#endif
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+void __init rd88f5182_pci_preinit(void)
+{
+	int pin;
+
+	/*
+	 * Configure PCI GPIO IRQ pins
+	 */
+	pin = RD88F5182_PCI_SLOT0_IRQ_A_PIN;
+	if (gpio_request(pin, "PCI IntA") == 0) {
+		if (gpio_direction_input(pin) == 0) {
+			set_irq_type(gpio_to_irq(pin), IRQT_LOW);
+		} else {
+			printk(KERN_ERR "rd88f5182_pci_preinit faield to "
+					"set_irq_type pin %d\n", pin);
+			gpio_free(pin);
+		}
+	} else {
+		printk(KERN_ERR "rd88f5182_pci_preinit failed to request gpio %d\n", pin);
+	}
+
+	pin = RD88F5182_PCI_SLOT0_IRQ_B_PIN;
+	if (gpio_request(pin, "PCI IntB") == 0) {
+		if (gpio_direction_input(pin) == 0) {
+			set_irq_type(gpio_to_irq(pin), IRQT_LOW);
+		} else {
+			printk(KERN_ERR "rd88f5182_pci_preinit faield to "
+					"set_irq_type pin %d\n", pin);
+			gpio_free(pin);
+		}
+	} else {
+		printk(KERN_ERR "rd88f5182_pci_preinit failed to gpio_request %d\n", pin);
+	}
+}
+
+static int __init rd88f5182_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	/*
+	 * PCI-E isn't used on the RD2
+	 */
+	if (dev->bus->number == orion_pcie_local_bus_nr())
+		return IRQ_ORION_PCIE0_INT;
+
+	/*
+	 * PCI IRQs are connected via GPIOs
+	 */
+	switch (slot - RD88F5182_PCI_SLOT0_OFFS) {
+	case 0:
+		if (pin == 1)
+			return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_A_PIN);
+		else
+			return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_B_PIN);
+	default:
+		return -1;
+	}
+}
+
+static struct hw_pci rd88f5182_pci __initdata = {
+	.nr_controllers	= 2,
+	.preinit	= rd88f5182_pci_preinit,
+	.swizzle	= pci_std_swizzle,
+	.setup		= orion_pci_sys_setup,
+	.scan		= orion_pci_sys_scan_bus,
+	.map_irq	= rd88f5182_pci_map_irq,
+};
+
+static int __init rd88f5182_pci_init(void)
+{
+	if (machine_is_rd88f5182())
+		pci_common_init(&rd88f5182_pci);
+
+	return 0;
+}
+
+subsys_initcall(rd88f5182_pci_init);
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data rd88f5182_eth_data = {
+	.phy_addr	= 8,
+	.force_phy_addr = 1,
+};
+
+/*****************************************************************************
+ * RTC DS1338 on I2C bus
+ ****************************************************************************/
+static struct i2c_board_info __initdata rd88f5182_i2c_rtc = {
+	.driver_name	= "rtc-ds1307",
+	.type		= "ds1338",
+	.addr		= 0x68,
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+
+static struct platform_device *rd88f5182_devices[] __initdata = {
+	&rd88f5182_nor_flash,
+};
+
+static void __init rd88f5182_init(void)
+{
+	/*
+	 * Setup basic Orion functions. Need to be called early.
+	 */
+	orion_init();
+
+	/*
+	 * Setup the CPU address decode windows for our devices
+	 */
+	orion_setup_cpu_win(ORION_DEV_BOOT, RD88F5182_NOR_BOOT_BASE,
+				RD88F5182_NOR_BOOT_SIZE, -1);
+	orion_setup_cpu_win(ORION_DEV1, RD88F5182_NOR_BASE,
+				RD88F5182_NOR_SIZE, -1);
+
+	/*
+	 * Open a special address decode windows for the PCIE WA.
+	 */
+	orion_write(ORION_REGS_BASE | 0x20074, ORION_PCIE_WA_BASE);
+	orion_write(ORION_REGS_BASE | 0x20070, (0x7941 |
+		(((ORION_PCIE_WA_SIZE >> 16) - 1)) << 16));
+
+	/*
+	 * Setup Multiplexing Pins --
+	 * MPP[0] Debug Led (GPIO - Out)
+	 * MPP[1] Debug Led (GPIO - Out)
+	 * MPP[2] N/A
+	 * MPP[3] RTC_Int (GPIO - In)
+	 * MPP[4] GPIO
+	 * MPP[5] GPIO
+	 * MPP[6] PCI_intA (GPIO - In)
+	 * MPP[7] PCI_intB (GPIO - In)
+	 * MPP[8-11] N/A
+	 * MPP[12] SATA 0 presence Indication
+	 * MPP[13] SATA 1 presence Indication
+	 * MPP[14] SATA 0 active Indication
+	 * MPP[15] SATA 1 active indication
+	 * MPP[16-19] Not used
+	 * MPP[20] PCI Clock to MV88F5182
+	 * MPP[21] PCI Clock to mini PCI CON11
+	 * MPP[22] USB 0 over current indication
+	 * MPP[23] USB 1 over current indication
+	 * MPP[24] USB 1 over current enable
+	 * MPP[25] USB 0 over current enable
+	 */
+
+	orion_write(MPP_0_7_CTRL, 0x00000003);
+	orion_write(MPP_8_15_CTRL, 0x55550000);
+	orion_write(MPP_16_19_CTRL, 0x5555);
+
+	orion_gpio_set_valid_pins(0x000000fb);
+
+	platform_add_devices(rd88f5182_devices, ARRAY_SIZE(rd88f5182_devices));
+	i2c_register_board_info(0, &rd88f5182_i2c_rtc, 1);
+	orion_eth_init(&rd88f5182_eth_data);
+}
+
+MACHINE_START(RD88F5182, "Marvell Orion-NAS Reference Design")
+	/* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
+	.phys_io	= ORION_REGS_BASE,
+	.io_pg_offst	= ((ORION_REGS_BASE) >> 18) & 0xFFFC,
+	.boot_params	= 0x00000100,
+	.init_machine	= rd88f5182_init,
+	.map_io		= orion_map_io,
+	.init_irq	= orion_init_irq,
+	.timer		= &orion_timer,
+MACHINE_END
-- 
cgit v1.2.3-59-g8ed1b


From 1e78045306e9a402b096eef95864ddf313d402d8 Mon Sep 17 00:00:00 2001
From: Ronen Shitrit <rshitrit@marvell.com>
Date: Tue, 23 Oct 2007 15:14:42 -0400
Subject: [ARM] Orion: Buffalo/Revogear Kurobox Pro support

Only serial, NOR, NAND, PCI and Ethernet is activated at the moment.

Signed-off-by: Ronen Shitrit <rshitrit@marvell.com>
Reviewed-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-orion/Kconfig             |   7 +
 arch/arm/mach-orion/Makefile            |   1 +
 arch/arm/mach-orion/kurobox_pro-setup.c | 234 ++++++++++++++++++++++++++++++++
 3 files changed, 242 insertions(+)
 create mode 100644 arch/arm/mach-orion/kurobox_pro-setup.c

(limited to 'arch')

diff --git a/arch/arm/mach-orion/Kconfig b/arch/arm/mach-orion/Kconfig
index 73d9f9aa283f..dc929511837f 100644
--- a/arch/arm/mach-orion/Kconfig
+++ b/arch/arm/mach-orion/Kconfig
@@ -16,6 +16,13 @@ config MACH_RD88F5182
 	  Say 'Y' here if you want your kernel to support the
 	  Marvell Orion-NAS (88F5182) RD2
 
+config MACH_KUROBOX_PRO
+	bool "KuroBox Pro"
+	select I2C_BOARDINFO
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  KuroBox Pro platform.
+
 endmenu
 
 endif
diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
index 1cbdd7513120..caf20ff921d8 100644
--- a/arch/arm/mach-orion/Makefile
+++ b/arch/arm/mach-orion/Makefile
@@ -1,3 +1,4 @@
 obj-y				+= common.o addr-map.o pci.o gpio.o irq.o time.o
 obj-$(CONFIG_MACH_DB88F5281)	+= db88f5281-setup.o
 obj-$(CONFIG_MACH_RD88F5182)	+= rd88f5182-setup.o
+obj-$(CONFIG_MACH_KUROBOX_PRO)	+= kurobox_pro-setup.o
diff --git a/arch/arm/mach-orion/kurobox_pro-setup.c b/arch/arm/mach-orion/kurobox_pro-setup.c
new file mode 100644
index 000000000000..2d812ed6b5c7
--- /dev/null
+++ b/arch/arm/mach-orion/kurobox_pro-setup.c
@@ -0,0 +1,234 @@
+/*
+ * arch/arm/mach-orion/kurobox_pro-setup.c
+ *
+ * Maintainer: Ronen Shitrit <rshitrit@marvell.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/nand.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/i2c.h>
+#include <asm/mach-types.h>
+#include <asm/gpio.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <asm/arch/orion.h>
+#include <asm/arch/platform.h>
+#include "common.h"
+
+/*****************************************************************************
+ * KUROBOX-PRO Info
+ ****************************************************************************/
+
+/*
+ * 256K NOR flash Device bus boot chip select
+ */
+
+#define KUROBOX_PRO_NOR_BOOT_BASE	0xf4000000
+#define KUROBOX_PRO_NOR_BOOT_SIZE	SZ_256K
+
+/*
+ * 256M NAND flash on Device bus chip select 1
+ */
+
+#define KUROBOX_PRO_NAND_BASE		0xfc000000
+#define KUROBOX_PRO_NAND_SIZE		SZ_2M
+
+/*****************************************************************************
+ * 256MB NAND Flash on Device bus CS0
+ ****************************************************************************/
+
+static struct mtd_partition kurobox_pro_nand_parts[] = {
+	{
+		.name	= "uImage",
+		.offset	= 0,
+		.size	= SZ_4M,
+	},
+	{
+		.name	= "rootfs",
+		.offset	= SZ_4M,
+		.size	= SZ_64M,
+	},
+	{
+		.name	= "extra",
+		.offset	= SZ_4M + SZ_64M,
+		.size	= SZ_256M - (SZ_4M + SZ_64M),
+	},
+};
+
+static struct resource kurobox_pro_nand_resource = {
+	.flags		= IORESOURCE_MEM,
+	.start		= KUROBOX_PRO_NAND_BASE,
+	.end		= KUROBOX_PRO_NAND_BASE + KUROBOX_PRO_NAND_SIZE - 1,
+};
+
+static struct orion_nand_data kurobox_pro_nand_data = {
+	.parts		= kurobox_pro_nand_parts,
+	.nr_parts	= ARRAY_SIZE(kurobox_pro_nand_parts),
+	.cle		= 0,
+	.ale		= 1,
+	.width		= 8,
+};
+
+static struct platform_device kurobox_pro_nand_flash = {
+	.name		= "orion_nand",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &kurobox_pro_nand_data,
+	},
+	.resource	= &kurobox_pro_nand_resource,
+	.num_resources	= 1,
+};
+
+/*****************************************************************************
+ * 256KB NOR Flash on BOOT Device
+ ****************************************************************************/
+
+static struct physmap_flash_data kurobox_pro_nor_flash_data = {
+	.width		= 1,
+};
+
+static struct resource kurobox_pro_nor_flash_resource = {
+	.flags			= IORESOURCE_MEM,
+	.start			= KUROBOX_PRO_NOR_BOOT_BASE,
+	.end			= KUROBOX_PRO_NOR_BOOT_BASE + KUROBOX_PRO_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device kurobox_pro_nor_flash = {
+	.name			= "physmap-flash",
+	.id			= 0,
+	.dev		= {
+		.platform_data	= &kurobox_pro_nor_flash_data,
+	},
+	.num_resources		= 1,
+	.resource		= &kurobox_pro_nor_flash_resource,
+};
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+static int __init kurobox_pro_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	/*
+	 * PCI isn't used on the Kuro
+	 */
+	if (dev->bus->number == orion_pcie_local_bus_nr())
+		return IRQ_ORION_PCIE0_INT;
+	else
+		printk(KERN_ERR "kurobox_pro_pci_map_irq failed, unknown bus\n");
+
+	return -1;
+}
+
+static struct hw_pci kurobox_pro_pci __initdata = {
+	.nr_controllers	= 1,
+	.swizzle	= pci_std_swizzle,
+	.setup		= orion_pci_sys_setup,
+	.scan		= orion_pci_sys_scan_bus,
+	.map_irq	= kurobox_pro_pci_map_irq,
+};
+
+static int __init kurobox_pro_pci_init(void)
+{
+	if (machine_is_kurobox_pro())
+		pci_common_init(&kurobox_pro_pci);
+
+	return 0;
+}
+
+subsys_initcall(kurobox_pro_pci_init);
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data kurobox_pro_eth_data = {
+	.phy_addr	= 8,
+	.force_phy_addr = 1,
+};
+
+/*****************************************************************************
+ * RTC 5C372a on I2C bus
+ ****************************************************************************/
+static struct i2c_board_info __initdata kurobox_pro_i2c_rtc = {
+       .driver_name    = "rtc-rs5c372",
+       .type           = "rs5c372a",
+       .addr           = 0x32,
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+
+static struct platform_device *kurobox_pro_devices[] __initdata = {
+	&kurobox_pro_nor_flash,
+	&kurobox_pro_nand_flash,
+};
+
+static void __init kurobox_pro_init(void)
+{
+	/*
+	 * Setup basic Orion functions. Need to be called early.
+	 */
+	orion_init();
+
+	/*
+	 * Setup the CPU address decode windows for our devices
+	 */
+	orion_setup_cpu_win(ORION_DEV_BOOT, KUROBOX_PRO_NOR_BOOT_BASE,
+				KUROBOX_PRO_NOR_BOOT_SIZE, -1);
+	orion_setup_cpu_win(ORION_DEV0,	KUROBOX_PRO_NAND_BASE,
+				KUROBOX_PRO_NAND_SIZE, -1);
+	/*
+	 * Open a special address decode windows for the PCIE WA.
+	 */
+	orion_write(ORION_REGS_BASE | 0x20074, ORION_PCIE_WA_BASE);
+	orion_write(ORION_REGS_BASE | 0x20070, (0x7941 |
+		(((ORION_PCIE_WA_SIZE >> 16) - 1)) << 16));
+
+	/*
+	 * Setup Multiplexing Pins --
+	 * MPP[0-1] Not used
+	 * MPP[2] GPIO Micon
+	 * MPP[3] GPIO RTC
+	 * MPP[4-5] Not used
+	 * MPP[6] Nand Flash REn
+	 * MPP[7] Nand Flash WEn
+	 * MPP[8-11] Not used
+	 * MPP[12] SATA 0 presence Indication
+	 * MPP[13] SATA 1 presence Indication
+	 * MPP[14] SATA 0 active Indication
+	 * MPP[15] SATA 1 active indication
+	 * MPP[16-19] Not used
+	 */
+	orion_write(MPP_0_7_CTRL, 0x44220003);
+	orion_write(MPP_8_15_CTRL, 0x55550000);
+	orion_write(MPP_16_19_CTRL, 0x0);
+
+	orion_gpio_set_valid_pins(0x0000000c);
+
+	platform_add_devices(kurobox_pro_devices, ARRAY_SIZE(kurobox_pro_devices));
+	i2c_register_board_info(0, &kurobox_pro_i2c_rtc, 1);
+	orion_eth_init(&kurobox_pro_eth_data);
+}
+
+MACHINE_START(KUROBOX_PRO, "Buffalo/Revogear Kurobox Pro")
+	/* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
+	.phys_io	= ORION_REGS_BASE,
+	.io_pg_offst	= ((ORION_REGS_BASE) >> 18) & 0xFFFC,
+	.boot_params	= 0x00000100,
+	.init_machine	= kurobox_pro_init,
+	.map_io		= orion_map_io,
+	.init_irq	= orion_init_irq,
+	.timer		= &orion_timer,
+MACHINE_END
-- 
cgit v1.2.3-59-g8ed1b


From c9e3de941a1694aeab60a10bd39eb710c975010d Mon Sep 17 00:00:00 2001
From: Herbert Valerio Riedel <hvr@gnu.org>
Date: Sun, 11 Nov 2007 12:05:11 +0100
Subject: [ARM] Orion: MV88F5181 support bits

add MV88F5181 support bits required by D-link DNS-323 patch

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Acked-by: Tzachi Perelstein <tzachi@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-orion/addr-map.c     | 4 +++-
 arch/arm/mach-orion/common.c       | 6 ++++++
 arch/arm/mach-orion/pci.c          | 2 +-
 include/asm-arm/arch-orion/orion.h | 3 +++
 4 files changed, 13 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-orion/addr-map.c b/arch/arm/mach-orion/addr-map.c
index ff6e010bccb2..488da3811a68 100644
--- a/arch/arm/mach-orion/addr-map.c
+++ b/arch/arm/mach-orion/addr-map.c
@@ -167,7 +167,9 @@ static int __init orion_cpu_win_can_remap(u32 win)
 	u32 dev, rev;
 
 	orion_pcie_id(&dev, &rev);
-	if ((dev == MV88F5281_DEV_ID && win < 4) || (dev == MV88F5182_DEV_ID && win < 2))
+	if ((dev == MV88F5281_DEV_ID && win < 4)
+	    || (dev == MV88F5182_DEV_ID && win < 2)
+	    || (dev == MV88F5181_DEV_ID && win < 2))
 		return 1;
 
 	return 0;
diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c
index 12736fd60004..ff34827f82a5 100644
--- a/arch/arm/mach-orion/common.c
+++ b/arch/arm/mach-orion/common.c
@@ -237,6 +237,12 @@ static void orion_id(u32 *dev, u32 *rev, char **dev_name)
 		} else {
 			*dev_name = "MV88F5182-Rev-Unsupported";
 		}
+	} else if (*dev == MV88F5181_DEV_ID) {
+		if (*rev == MV88F5181_REV_B1) {
+			*dev_name = "MV88F5181-Rev-B1";
+		} else {
+			*dev_name = "MV88F5181-Rev-Unsupported";
+		}
 	} else {
 		*dev_name = "Device-Unknown";
 	}
diff --git a/arch/arm/mach-orion/pci.c b/arch/arm/mach-orion/pci.c
index cf569c647112..0498d7c69b30 100644
--- a/arch/arm/mach-orion/pci.c
+++ b/arch/arm/mach-orion/pci.c
@@ -154,7 +154,7 @@ static int orion_pcie_rd_conf(struct pci_bus *bus, u32 devfn, int where,
 			PCIE_CONF_REG(where) | PCIE_CONF_ADDR_EN);
 
 	orion_pcie_id(&dev, &rev);
-	if (dev == MV88F5182_DEV_ID) {
+	if (dev == MV88F5181_DEV_ID || dev == MV88F5182_DEV_ID) {
 		/* extended register space */
 		pcie_addr = ORION_PCIE_WA_BASE;
 		pcie_addr |= PCIE_CONF_BUS(bus->number) |
diff --git a/include/asm-arm/arch-orion/orion.h b/include/asm-arm/arch-orion/orion.h
index 061c03c5a17e..f787f752e58c 100644
--- a/include/asm-arm/arch-orion/orion.h
+++ b/include/asm-arm/arch-orion/orion.h
@@ -43,6 +43,9 @@
 /*******************************************************************************
  * Supported Devices & Revisions
  ******************************************************************************/
+/* Orion-1 (88F5181) */
+#define MV88F5181_DEV_ID	0x5181
+#define MV88F5181_REV_B1	3
 /* Orion-NAS (88F5182) */
 #define MV88F5182_DEV_ID	0x5182
 #define MV88F5182_REV_A2	2
-- 
cgit v1.2.3-59-g8ed1b


From 555a36561be191eb01658a5229aa11b4e4a8a7f0 Mon Sep 17 00:00:00 2001
From: Herbert Valerio Riedel <hvr@gnu.org>
Date: Mon, 12 Nov 2007 09:05:55 +0100
Subject: [ARM] Orion: add support for Orion/MV88F5181 based D-Link DNS-323

With this patch USB, SATA (via sata_mv), Ethernet, RTC, LEDs and NOR Flash
work.

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Acked-by: Tzachi Perelstein <tzachi@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-orion/Kconfig        |   7 +
 arch/arm/mach-orion/Makefile       |   1 +
 arch/arm/mach-orion/dns323-setup.c | 322 +++++++++++++++++++++++++++++++++++++
 3 files changed, 330 insertions(+)
 create mode 100644 arch/arm/mach-orion/dns323-setup.c

(limited to 'arch')

diff --git a/arch/arm/mach-orion/Kconfig b/arch/arm/mach-orion/Kconfig
index dc929511837f..bdaed867e450 100644
--- a/arch/arm/mach-orion/Kconfig
+++ b/arch/arm/mach-orion/Kconfig
@@ -23,6 +23,13 @@ config MACH_KUROBOX_PRO
 	  Say 'Y' here if you want your kernel to support the
 	  KuroBox Pro platform.
 
+config MACH_DNS323
+	bool "D-Link DNS-323"
+	select I2C_BOARDINFO
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  D-Link DNS-323 platform.
+
 endmenu
 
 endif
diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
index caf20ff921d8..237ce98ad0ef 100644
--- a/arch/arm/mach-orion/Makefile
+++ b/arch/arm/mach-orion/Makefile
@@ -2,3 +2,4 @@ obj-y				+= common.o addr-map.o pci.o gpio.o irq.o time.o
 obj-$(CONFIG_MACH_DB88F5281)	+= db88f5281-setup.o
 obj-$(CONFIG_MACH_RD88F5182)	+= rd88f5182-setup.o
 obj-$(CONFIG_MACH_KUROBOX_PRO)	+= kurobox_pro-setup.o
+obj-$(CONFIG_MACH_DNS323)	+= dns323-setup.o
diff --git a/arch/arm/mach-orion/dns323-setup.c b/arch/arm/mach-orion/dns323-setup.c
new file mode 100644
index 000000000000..c8a806f249c6
--- /dev/null
+++ b/arch/arm/mach-orion/dns323-setup.c
@@ -0,0 +1,322 @@
+/*
+ * arch/arm/mach-orion/dns323-setup.c
+ *
+ * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/leds.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <asm/mach-types.h>
+#include <asm/gpio.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <asm/arch/orion.h>
+#include <asm/arch/platform.h>
+#include "common.h"
+
+#define DNS323_GPIO_LED_RIGHT_AMBER	1
+#define DNS323_GPIO_LED_LEFT_AMBER	2
+#define DNS323_GPIO_LED_POWER		5
+#define DNS323_GPIO_OVERTEMP		6
+#define DNS323_GPIO_RTC			7
+#define DNS323_GPIO_POWER_OFF		8
+#define DNS323_GPIO_KEY_POWER		9
+#define DNS323_GPIO_KEY_RESET		10
+
+/****************************************************************************
+ * PCI setup
+ */
+
+static int __init dns323_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	/* PCI-E */
+	if (dev->bus->number == orion_pcie_local_bus_nr())
+		return IRQ_ORION_PCIE0_INT;
+
+	pr_err("%s: requested mapping for unknown bus\n", __func__);
+
+	return -1;
+}
+
+static struct hw_pci dns323_pci __initdata = {
+	.nr_controllers = 1,
+	.swizzle	= pci_std_swizzle,
+	.setup		= orion_pci_sys_setup,
+	.scan		= orion_pci_sys_scan_bus,
+	.map_irq	= dns323_pci_map_irq,
+};
+
+static int __init dns323_pci_init(void)
+{
+	if (machine_is_dns323())
+		pci_common_init(&dns323_pci);
+
+	return 0;
+}
+
+subsys_initcall(dns323_pci_init);
+
+/****************************************************************************
+ * Ethernet
+ */
+
+static struct mv643xx_eth_platform_data dns323_eth_data = {
+	.phy_addr = 8,
+	.force_phy_addr = 1,
+};
+
+/****************************************************************************
+ * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
+ *
+ * Layout as used by D-Link:
+ *  0x00000000-0x00010000 : "MTD1"
+ *  0x00010000-0x00020000 : "MTD2"
+ *  0x00020000-0x001a0000 : "Linux Kernel"
+ *  0x001a0000-0x007d0000 : "File System"
+ *  0x007d0000-0x00800000 : "u-boot"
+ */
+
+#define DNS323_NOR_BOOT_BASE 0xf4000000
+#define DNS323_NOR_BOOT_SIZE SZ_8M
+
+static struct mtd_partition dns323_partitions[] = {
+	{
+		.name	= "MTD1",
+		.size	= 0x00010000,
+		.offset	= 0,
+	}, {
+		.name	= "MTD2",
+		.size	= 0x00010000,
+		.offset = 0x00010000,
+	}, {
+		.name	= "Linux Kernel",
+		.size	= 0x00180000,
+		.offset	= 0x00020000,
+	}, {
+		.name	= "File System",
+		.size	= 0x00630000,
+		.offset	= 0x001A0000,
+	}, {
+		.name	= "u-boot",
+		.size	= 0x00030000,
+		.offset	= 0x007d0000,
+	}
+};
+
+static struct physmap_flash_data dns323_nor_flash_data = {
+	.width		= 1,
+	.parts		= dns323_partitions,
+	.nr_parts	= ARRAY_SIZE(dns323_partitions)
+};
+
+static struct resource dns323_nor_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+	.start		= DNS323_NOR_BOOT_BASE,
+	.end		= DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device dns323_nor_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= { .platform_data = &dns323_nor_flash_data, },
+	.resource	= &dns323_nor_flash_resource,
+	.num_resources	= 1,
+};
+
+/****************************************************************************
+ * GPIO LEDs (simple - doesn't use hardware blinking support)
+ */
+
+static struct gpio_led dns323_leds[] = {
+	{
+		.name = "power:blue",
+		.gpio = DNS323_GPIO_LED_POWER,
+		.active_low = 1,
+	}, {
+		.name = "right:amber",
+		.gpio = DNS323_GPIO_LED_RIGHT_AMBER,
+		.active_low = 1,
+	}, {
+		.name = "left:amber",
+		.gpio = DNS323_GPIO_LED_LEFT_AMBER,
+		.active_low = 1,
+	},
+};
+
+static struct gpio_led_platform_data dns323_led_data = {
+	.num_leds	= ARRAY_SIZE(dns323_leds),
+	.leds		= dns323_leds,
+};
+
+static struct platform_device dns323_gpio_leds = {
+	.name		= "leds-gpio",
+	.id		= -1,
+	.dev		= { .platform_data = &dns323_led_data, },
+};
+
+/****************************************************************************
+ * GPIO Attached Keys
+ */
+
+static struct gpio_keys_button dns323_buttons[] = {
+	{
+		.code		= KEY_RESTART,
+		.gpio		= DNS323_GPIO_KEY_RESET,
+		.desc		= "Reset Button",
+		.active_low	= 1,
+	},
+	{
+		.code		= KEY_POWER,
+		.gpio		= DNS323_GPIO_KEY_POWER,
+		.desc		= "Power Button",
+		.active_low	= 1,
+	}
+};
+
+static struct gpio_keys_platform_data dns323_button_data = {
+	.buttons	= dns323_buttons,
+	.nbuttons       = ARRAY_SIZE(dns323_buttons),
+};
+
+static struct platform_device dns323_button_device = {
+	.name		= "gpio-keys",
+	.id		= -1,
+	.num_resources	= 0,
+	.dev		= { .platform_data  = &dns323_button_data, },
+};
+
+/****************************************************************************
+ * General Setup
+ */
+
+static struct platform_device *dns323_plat_devices[] __initdata = {
+	&dns323_nor_flash,
+	&dns323_gpio_leds,
+	&dns323_button_device,
+};
+
+/*
+ * On the DNS-323 the following devices are attached via I2C:
+ *
+ *  i2c addr | chip        | description
+ *  0x3e     | GMT G760Af  | fan speed PWM controller
+ *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
+ *  0x68     | ST M41T80   | RTC w/ alarm
+ */
+static struct i2c_board_info __initdata dns323_i2c_devices[] = {
+	{
+		I2C_BOARD_INFO("g760a", 0x3e),
+		.type = "g760a",
+	},
+#if 0
+	/* this entry requires the new-style driver model lm75 driver,
+	 * for the meantime "insmod lm75.ko force_lm75=0,0x48" is needed */
+	{
+		I2C_BOARD_INFO("lm75", 0x48),
+		.type = "g751",
+	},
+#endif
+	{
+		I2C_BOARD_INFO("rtc-m41t80", 0x68),
+		.type = "m41t80",
+	}
+};
+
+/* DNS-323 specific power off method */
+static void dns323_power_off(void)
+{
+	pr_info("%s: triggering power-off...\n", __func__);
+	gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
+}
+
+static void __init dns323_init(void)
+{
+	/* Setup basic Orion functions. Need to be called early. */
+	orion_init();
+
+	/* setup flash mapping
+	 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
+	 */
+	orion_setup_cpu_win(ORION_DEV_BOOT, DNS323_NOR_BOOT_BASE,
+			    DNS323_NOR_BOOT_SIZE, -1);
+
+	/* DNS-323 has a Marvell 88X7042 SATA controller attached via PCIE
+	 *
+	 * Open a special address decode windows for the PCIE WA.
+	 */
+	orion_write(ORION_REGS_BASE | 0x20074, ORION_PCIE_WA_BASE);
+	orion_write(ORION_REGS_BASE | 0x20070,
+		    (0x7941 | (((ORION_PCIE_WA_SIZE >> 16) - 1)) << 16));
+
+	/* set MPP to 0 as D-Link's 2.6.12.6 kernel did */
+	orion_write(MPP_0_7_CTRL, 0);
+	orion_write(MPP_8_15_CTRL, 0);
+	orion_write(MPP_16_19_CTRL, 0);
+	orion_write(MPP_DEV_CTRL, 0);
+
+	/* Define used GPIO pins
+
+	  GPIO Map:
+
+	  |  0 |     | PEX_RST_OUT (not controlled by GPIO)
+	  |  1 | Out | right amber LED (= sata ch0 LED)  (low-active)
+	  |  2 | Out | left  amber LED (= sata ch1 LED)  (low-active)
+	  |  3 | Out | //unknown//
+	  |  4 | Out | power button LED (low-active, together with pin #5)
+	  |  5 | Out | power button LED (low-active, together with pin #4)
+	  |  6 | In  | GMT G751-2f overtemp. shutdown signal (low-active)
+	  |  7 | In  | M41T80 nIRQ/OUT/SQW signal
+	  |  8 | Out | triggers power off (high-active)
+	  |  9 | In  | power button switch (low-active)
+	  | 10 | In  | reset button switch (low-active)
+	  | 11 | Out | //unknown//
+	  | 12 | Out | //unknown//
+	  | 13 | Out | //unknown//
+	  | 14 | Out | //unknown//
+	  | 15 | Out | //unknown//
+	*/
+	orion_gpio_set_valid_pins(0x07f6);
+
+	/* register dns323 specific power-off method */
+	if ((gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0)
+	    || (gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0))
+		pr_err("DNS323: failed to setup power-off GPIO\n");
+
+	pm_power_off = dns323_power_off;
+
+	/* register flash and other platform devices */
+	platform_add_devices(dns323_plat_devices,
+			     ARRAY_SIZE(dns323_plat_devices));
+
+	i2c_register_board_info(0, dns323_i2c_devices,
+				ARRAY_SIZE(dns323_i2c_devices));
+
+	orion_eth_init(&dns323_eth_data);
+}
+
+/* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
+MACHINE_START(DNS323, "D-Link DNS-323")
+	/* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
+	.phys_io	= ORION_REGS_BASE,
+	.io_pg_offst	= ((ORION_REGS_BASE) >> 18) & 0xFFFC,
+	.boot_params	= 0x00000100,
+	.init_machine	= dns323_init,
+	.map_io		= orion_map_io,
+	.init_irq	= orion_init_irq,
+	.timer		= &orion_timer,
+MACHINE_END
-- 
cgit v1.2.3-59-g8ed1b


From eb3cef84adec0fdba1a2531bcefe438a838a57dd Mon Sep 17 00:00:00 2001
From: Tzachi Perelstein <tzachi@marvell.com>
Date: Tue, 6 Nov 2007 11:18:46 +0200
Subject: [ARM] Orion defconfig

Basic selections for Orion machines

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/configs/orion_defconfig | 1383 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 1383 insertions(+)
 create mode 100644 arch/arm/configs/orion_defconfig

(limited to 'arch')

diff --git a/arch/arm/configs/orion_defconfig b/arch/arm/configs/orion_defconfig
new file mode 100644
index 000000000000..9a42b2fc9f65
--- /dev/null
+++ b/arch/arm/configs/orion_defconfig
@@ -0,0 +1,1383 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.24-rc3
+# Wed Nov 28 15:13:57 2007
+#
+CONFIG_ARM=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_MMU=y
+# CONFIG_NO_IOPORT is not set
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_ZONE_DMA=y
+CONFIG_VECTORS_BASE=0xffff0000
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOCK_KERNEL=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SWAP=y
+CONFIG_SYSVIPC=y
+CONFIG_SYSVIPC_SYSCTL=y
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+CONFIG_UID16=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+# CONFIG_KMOD is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
+
+#
+# System Type
+#
+# CONFIG_ARCH_AAEC2000 is not set
+# CONFIG_ARCH_INTEGRATOR is not set
+# CONFIG_ARCH_REALVIEW is not set
+# CONFIG_ARCH_VERSATILE is not set
+# CONFIG_ARCH_AT91 is not set
+# CONFIG_ARCH_CLPS7500 is not set
+# CONFIG_ARCH_CLPS711X is not set
+# CONFIG_ARCH_CO285 is not set
+# CONFIG_ARCH_EBSA110 is not set
+# CONFIG_ARCH_EP93XX is not set
+# CONFIG_ARCH_FOOTBRIDGE is not set
+# CONFIG_ARCH_NETX is not set
+# CONFIG_ARCH_H720X is not set
+# CONFIG_ARCH_IMX is not set
+# CONFIG_ARCH_IOP13XX is not set
+# CONFIG_ARCH_IOP32X is not set
+# CONFIG_ARCH_IOP33X is not set
+# CONFIG_ARCH_IXP23XX is not set
+# CONFIG_ARCH_IXP2000 is not set
+# CONFIG_ARCH_IXP4XX is not set
+# CONFIG_ARCH_L7200 is not set
+# CONFIG_ARCH_KS8695 is not set
+# CONFIG_ARCH_NS9XXX is not set
+# CONFIG_ARCH_MXC is not set
+CONFIG_ARCH_ORION=y
+# CONFIG_ARCH_PNX4008 is not set
+# CONFIG_ARCH_PXA is not set
+# CONFIG_ARCH_RPC is not set
+# CONFIG_ARCH_SA1100 is not set
+# CONFIG_ARCH_S3C2410 is not set
+# CONFIG_ARCH_SHARK is not set
+# CONFIG_ARCH_LH7A40X is not set
+# CONFIG_ARCH_DAVINCI is not set
+# CONFIG_ARCH_OMAP is not set
+
+#
+# Orion Implementations
+#
+CONFIG_MACH_DB88F5281=y
+CONFIG_MACH_RD88F5182=y
+CONFIG_MACH_KUROBOX_PRO=y
+CONFIG_MACH_DNS323=y
+
+#
+# Boot options
+#
+
+#
+# Power management
+#
+
+#
+# Processor Type
+#
+CONFIG_CPU_32=y
+CONFIG_CPU_FEROCEON=y
+CONFIG_CPU_FEROCEON_OLD_ID=y
+CONFIG_CPU_32v5=y
+CONFIG_CPU_ABRT_EV5T=y
+CONFIG_CPU_CACHE_VIVT=y
+CONFIG_CPU_COPY_V4WB=y
+CONFIG_CPU_TLB_V4WBI=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+
+#
+# Processor Features
+#
+CONFIG_ARM_THUMB=y
+# CONFIG_CPU_ICACHE_DISABLE is not set
+# CONFIG_CPU_DCACHE_DISABLE is not set
+# CONFIG_CPU_DCACHE_WRITETHROUGH is not set
+# CONFIG_OUTER_CACHE is not set
+
+#
+# Bus support
+#
+CONFIG_PCI=y
+CONFIG_PCI_SYSCALL=y
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+CONFIG_PCI_LEGACY=y
+# CONFIG_PCCARD is not set
+
+#
+# Kernel Features
+#
+CONFIG_TICK_ONESHOT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+CONFIG_PREEMPT=y
+CONFIG_HZ=100
+CONFIG_AEABI=y
+CONFIG_OABI_COMPAT=y
+# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4096
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_BOUNCE=y
+CONFIG_VIRT_TO_BUS=y
+CONFIG_LEDS=y
+CONFIG_LEDS_CPU=y
+CONFIG_ALIGNMENT_TRAP=y
+
+#
+# Boot options
+#
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_CMDLINE=""
+# CONFIG_XIP_KERNEL is not set
+# CONFIG_KEXEC is not set
+
+#
+# Floating point emulation
+#
+
+#
+# At least one emulation must be selected
+#
+CONFIG_FPE_NWFPE=y
+# CONFIG_FPE_NWFPE_XP is not set
+# CONFIG_FPE_FASTFPE is not set
+CONFIG_VFP=y
+
+#
+# Userspace binary formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Power management options
+#
+# CONFIG_PM is not set
+CONFIG_SUSPEND_UP_POSSIBLE=y
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+CONFIG_PACKET_MMAP=y
+CONFIG_UNIX=y
+CONFIG_XFRM=y
+# CONFIG_XFRM_USER is not set
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_IP_MROUTE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
+CONFIG_INET_XFRM_MODE_BEET=y
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+CONFIG_NET_PKTGEN=m
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+CONFIG_WIRELESS_EXT=y
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+CONFIG_FW_LOADER=y
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+# CONFIG_MTD_AFS_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+CONFIG_FTL=y
+CONFIG_NFTL=y
+# CONFIG_NFTL_RW is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+CONFIG_MTD_CFI=y
+CONFIG_MTD_JEDECPROBE=y
+CONFIG_MTD_GEN_PROBE=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+CONFIG_MTD_CFI_NOSWAP=y
+# CONFIG_MTD_CFI_BE_BYTE_SWAP is not set
+# CONFIG_MTD_CFI_LE_BYTE_SWAP is not set
+CONFIG_MTD_CFI_GEOMETRY=y
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+CONFIG_MTD_CFI_I4=y
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_OTP is not set
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_CFI_STAA=y
+CONFIG_MTD_CFI_UTIL=y
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_START=0x0
+CONFIG_MTD_PHYSMAP_LEN=0x0
+CONFIG_MTD_PHYSMAP_BANKWIDTH=0
+# CONFIG_MTD_ARM_INTEGRATOR is not set
+# CONFIG_MTD_IMPA7 is not set
+# CONFIG_MTD_INTEL_VR_NOR is not set
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_PMC551 is not set
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_VERIFY_WRITE=y
+# CONFIG_MTD_NAND_ECC_SMC is not set
+# CONFIG_MTD_NAND_MUSEUM_IDS is not set
+CONFIG_MTD_NAND_IDS=y
+# CONFIG_MTD_NAND_DISKONCHIP is not set
+# CONFIG_MTD_NAND_CAFE is not set
+# CONFIG_MTD_NAND_NANDSIM is not set
+# CONFIG_MTD_NAND_PLATFORM is not set
+# CONFIG_MTD_ALAUDA is not set
+CONFIG_MTD_NAND_ORION=y
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_CPQ_DA is not set
+# CONFIG_BLK_CPQ_CISS_DA is not set
+# CONFIG_BLK_DEV_DAC960 is not set
+# CONFIG_BLK_DEV_UMEM is not set
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=y
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_SX8 is not set
+# CONFIG_BLK_DEV_UB is not set
+# CONFIG_BLK_DEV_RAM is not set
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_PHANTOM is not set
+# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_TIFM_CORE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+CONFIG_SCSI=y
+CONFIG_SCSI_DMA=y
+# CONFIG_SCSI_TGT is not set
+# CONFIG_SCSI_NETLINK is not set
+CONFIG_SCSI_PROC_FS=y
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
+CONFIG_BLK_DEV_SD=y
+# CONFIG_CHR_DEV_ST is not set
+# CONFIG_CHR_DEV_OSST is not set
+CONFIG_BLK_DEV_SR=y
+# CONFIG_BLK_DEV_SR_VENDOR is not set
+CONFIG_CHR_DEV_SG=y
+# CONFIG_CHR_DEV_SCH is not set
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
+CONFIG_SCSI_MULTI_LUN=y
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+CONFIG_SCSI_WAIT_SCAN=m
+
+#
+# SCSI Transports
+#
+# CONFIG_SCSI_SPI_ATTRS is not set
+# CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+# CONFIG_SCSI_SRP_ATTRS is not set
+CONFIG_SCSI_LOWLEVEL=y
+# CONFIG_ISCSI_TCP is not set
+# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
+# CONFIG_SCSI_3W_9XXX is not set
+# CONFIG_SCSI_ACARD is not set
+# CONFIG_SCSI_AACRAID is not set
+# CONFIG_SCSI_AIC7XXX is not set
+# CONFIG_SCSI_AIC7XXX_OLD is not set
+# CONFIG_SCSI_AIC79XX is not set
+# CONFIG_SCSI_AIC94XX is not set
+# CONFIG_SCSI_DPT_I2O is not set
+# CONFIG_SCSI_ADVANSYS is not set
+# CONFIG_SCSI_ARCMSR is not set
+# CONFIG_MEGARAID_NEWGEN is not set
+# CONFIG_MEGARAID_LEGACY is not set
+# CONFIG_MEGARAID_SAS is not set
+# CONFIG_SCSI_HPTIOP is not set
+# CONFIG_SCSI_DMX3191D is not set
+# CONFIG_SCSI_FUTURE_DOMAIN is not set
+# CONFIG_SCSI_IPS is not set
+# CONFIG_SCSI_INITIO is not set
+# CONFIG_SCSI_INIA100 is not set
+# CONFIG_SCSI_STEX is not set
+CONFIG_SCSI_MVSATA=y
+
+#
+# Sata options
+#
+# CONFIG_MV_SATA_SUPPORT_ATAPI is not set
+# CONFIG_MV_SATA_ENABLE_1MB_IOS is not set
+CONFIG_SATA_NO_DEBUG=y
+# CONFIG_SATA_DEBUG_ON_ERROR is not set
+# CONFIG_SATA_FULL_DEBUG is not set
+# CONFIG_SCSI_SYM53C8XX_2 is not set
+# CONFIG_SCSI_IPR is not set
+# CONFIG_SCSI_QLOGIC_1280 is not set
+# CONFIG_SCSI_QLA_FC is not set
+# CONFIG_SCSI_QLA_ISCSI is not set
+# CONFIG_SCSI_LPFC is not set
+# CONFIG_SCSI_DC395x is not set
+# CONFIG_SCSI_DC390T is not set
+# CONFIG_SCSI_NSP32 is not set
+# CONFIG_SCSI_DEBUG is not set
+# CONFIG_SCSI_SRP is not set
+CONFIG_ATA=m
+# CONFIG_ATA_NONSTANDARD is not set
+# CONFIG_SATA_AHCI is not set
+# CONFIG_SATA_SVW is not set
+# CONFIG_ATA_PIIX is not set
+# CONFIG_SATA_MV is not set
+# CONFIG_SATA_NV is not set
+# CONFIG_PDC_ADMA is not set
+# CONFIG_SATA_QSTOR is not set
+# CONFIG_SATA_PROMISE is not set
+# CONFIG_SATA_SX4 is not set
+# CONFIG_SATA_SIL is not set
+# CONFIG_SATA_SIL24 is not set
+# CONFIG_SATA_SIS is not set
+# CONFIG_SATA_ULI is not set
+# CONFIG_SATA_VIA is not set
+# CONFIG_SATA_VITESSE is not set
+# CONFIG_SATA_INIC162X is not set
+# CONFIG_PATA_ALI is not set
+# CONFIG_PATA_AMD is not set
+# CONFIG_PATA_ARTOP is not set
+# CONFIG_PATA_ATIIXP is not set
+# CONFIG_PATA_CMD640_PCI is not set
+# CONFIG_PATA_CMD64X is not set
+# CONFIG_PATA_CS5520 is not set
+# CONFIG_PATA_CS5530 is not set
+# CONFIG_PATA_CYPRESS is not set
+# CONFIG_PATA_EFAR is not set
+# CONFIG_ATA_GENERIC is not set
+# CONFIG_PATA_HPT366 is not set
+# CONFIG_PATA_HPT37X is not set
+# CONFIG_PATA_HPT3X2N is not set
+# CONFIG_PATA_HPT3X3 is not set
+# CONFIG_PATA_IT821X is not set
+# CONFIG_PATA_IT8213 is not set
+# CONFIG_PATA_JMICRON is not set
+# CONFIG_PATA_TRIFLEX is not set
+# CONFIG_PATA_MARVELL is not set
+# CONFIG_PATA_MPIIX is not set
+# CONFIG_PATA_OLDPIIX is not set
+# CONFIG_PATA_NETCELL is not set
+# CONFIG_PATA_NS87410 is not set
+# CONFIG_PATA_NS87415 is not set
+# CONFIG_PATA_OPTI is not set
+# CONFIG_PATA_OPTIDMA is not set
+# CONFIG_PATA_PDC_OLD is not set
+# CONFIG_PATA_RADISYS is not set
+# CONFIG_PATA_RZ1000 is not set
+# CONFIG_PATA_SC1200 is not set
+# CONFIG_PATA_SERVERWORKS is not set
+# CONFIG_PATA_PDC2027X is not set
+# CONFIG_PATA_SIL680 is not set
+# CONFIG_PATA_SIS is not set
+# CONFIG_PATA_VIA is not set
+# CONFIG_PATA_WINBOND is not set
+# CONFIG_PATA_PLATFORM is not set
+# CONFIG_MD is not set
+# CONFIG_FUSION is not set
+
+#
+# IEEE 1394 (FireWire) support
+#
+# CONFIG_FIREWIRE is not set
+# CONFIG_IEEE1394 is not set
+# CONFIG_I2O is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_IP1000 is not set
+# CONFIG_ARCNET is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+# CONFIG_AX88796 is not set
+# CONFIG_HAPPYMEAL is not set
+# CONFIG_SUNGEM is not set
+# CONFIG_CASSINI is not set
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_SMC91X is not set
+# CONFIG_DM9000 is not set
+# CONFIG_NET_TULIP is not set
+# CONFIG_HP100 is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+CONFIG_NET_PCI=y
+# CONFIG_PCNET32 is not set
+# CONFIG_AMD8111_ETH is not set
+# CONFIG_ADAPTEC_STARFIRE is not set
+# CONFIG_B44 is not set
+# CONFIG_FORCEDETH is not set
+# CONFIG_EEPRO100 is not set
+CONFIG_E100=y
+# CONFIG_FEALNX is not set
+# CONFIG_NATSEMI is not set
+# CONFIG_NE2K_PCI is not set
+# CONFIG_8139CP is not set
+# CONFIG_8139TOO is not set
+# CONFIG_SIS900 is not set
+# CONFIG_EPIC100 is not set
+# CONFIG_SUNDANCE is not set
+# CONFIG_TLAN is not set
+# CONFIG_VIA_RHINE is not set
+# CONFIG_SC92031 is not set
+CONFIG_NETDEV_1000=y
+# CONFIG_ACENIC is not set
+# CONFIG_DL2K is not set
+CONFIG_E1000=y
+CONFIG_E1000_NAPI=y
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
+# CONFIG_E1000E is not set
+# CONFIG_NS83820 is not set
+# CONFIG_HAMACHI is not set
+# CONFIG_YELLOWFIN is not set
+# CONFIG_R8169 is not set
+# CONFIG_SIS190 is not set
+CONFIG_SKGE=y
+CONFIG_SKY2=y
+# CONFIG_SK98LIN is not set
+# CONFIG_VIA_VELOCITY is not set
+CONFIG_TIGON3=y
+# CONFIG_BNX2 is not set
+CONFIG_MV643XX_ETH=y
+# CONFIG_QLA3XXX is not set
+# CONFIG_ATL1 is not set
+CONFIG_NETDEV_10000=y
+# CONFIG_CHELSIO_T1 is not set
+# CONFIG_CHELSIO_T3 is not set
+# CONFIG_IXGBE is not set
+# CONFIG_IXGB is not set
+# CONFIG_S2IO is not set
+# CONFIG_MYRI10GE is not set
+# CONFIG_NETXEN_NIC is not set
+# CONFIG_NIU is not set
+# CONFIG_MLX4_CORE is not set
+# CONFIG_TEHUTI is not set
+# CONFIG_TR is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+
+#
+# USB Network Adapters
+#
+# CONFIG_USB_CATC is not set
+# CONFIG_USB_KAWETH is not set
+# CONFIG_USB_PEGASUS is not set
+# CONFIG_USB_RTL8150 is not set
+# CONFIG_USB_USBNET is not set
+# CONFIG_WAN is not set
+# CONFIG_FDDI is not set
+# CONFIG_HIPPI is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_NET_FC is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+CONFIG_INPUT_MOUSEDEV=y
+CONFIG_INPUT_MOUSEDEV_PSAUX=y
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_PCI=y
+CONFIG_SERIAL_8250_NR_UARTS=4
+CONFIG_SERIAL_8250_RUNTIME_UARTS=2
+# CONFIG_SERIAL_8250_EXTENDED is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_JSM is not set
+CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=16
+# CONFIG_IPMI_HANDLER is not set
+CONFIG_HW_RANDOM=m
+# CONFIG_NVRAM is not set
+# CONFIG_R3964 is not set
+# CONFIG_APPLICOM is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+CONFIG_DEVPORT=y
+CONFIG_I2C=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=y
+
+#
+# I2C Algorithms
+#
+# CONFIG_I2C_ALGOBIT is not set
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALGOPCA is not set
+
+#
+# I2C Hardware Bus support
+#
+# CONFIG_I2C_ALI1535 is not set
+# CONFIG_I2C_ALI1563 is not set
+# CONFIG_I2C_ALI15X3 is not set
+# CONFIG_I2C_AMD756 is not set
+# CONFIG_I2C_AMD8111 is not set
+# CONFIG_I2C_GPIO is not set
+# CONFIG_I2C_I801 is not set
+# CONFIG_I2C_I810 is not set
+# CONFIG_I2C_PIIX4 is not set
+# CONFIG_I2C_NFORCE2 is not set
+# CONFIG_I2C_OCORES is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_PROSAVAGE is not set
+# CONFIG_I2C_SAVAGE4 is not set
+# CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_SIS5595 is not set
+# CONFIG_I2C_SIS630 is not set
+# CONFIG_I2C_SIS96X is not set
+# CONFIG_I2C_TAOS_EVM is not set
+# CONFIG_I2C_STUB is not set
+# CONFIG_I2C_TINY_USB is not set
+# CONFIG_I2C_VIA is not set
+# CONFIG_I2C_VIAPRO is not set
+# CONFIG_I2C_VOODOO3 is not set
+CONFIG_I2C_MV64XXX=y
+
+#
+# Miscellaneous I2C Chip support
+#
+# CONFIG_SENSORS_DS1337 is not set
+# CONFIG_SENSORS_DS1374 is not set
+# CONFIG_DS1682 is not set
+# CONFIG_SENSORS_EEPROM is not set
+# CONFIG_SENSORS_PCF8574 is not set
+# CONFIG_SENSORS_PCA9539 is not set
+# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_MAX6875 is not set
+# CONFIG_SENSORS_TSL2550 is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
+# CONFIG_I2C_DEBUG_CHIP is not set
+
+#
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+CONFIG_HWMON=y
+# CONFIG_HWMON_VID is not set
+# CONFIG_SENSORS_AD7418 is not set
+# CONFIG_SENSORS_ADM1021 is not set
+# CONFIG_SENSORS_ADM1025 is not set
+# CONFIG_SENSORS_ADM1026 is not set
+# CONFIG_SENSORS_ADM1029 is not set
+# CONFIG_SENSORS_ADM1031 is not set
+# CONFIG_SENSORS_ADM9240 is not set
+# CONFIG_SENSORS_ADT7470 is not set
+# CONFIG_SENSORS_ATXP1 is not set
+# CONFIG_SENSORS_DS1621 is not set
+# CONFIG_SENSORS_I5K_AMB is not set
+# CONFIG_SENSORS_F71805F is not set
+# CONFIG_SENSORS_F71882FG is not set
+# CONFIG_SENSORS_F75375S is not set
+# CONFIG_SENSORS_GL518SM is not set
+# CONFIG_SENSORS_GL520SM is not set
+# CONFIG_SENSORS_IT87 is not set
+# CONFIG_SENSORS_LM63 is not set
+# CONFIG_SENSORS_LM75 is not set
+# CONFIG_SENSORS_LM77 is not set
+# CONFIG_SENSORS_LM78 is not set
+# CONFIG_SENSORS_LM80 is not set
+# CONFIG_SENSORS_LM83 is not set
+# CONFIG_SENSORS_LM85 is not set
+# CONFIG_SENSORS_LM87 is not set
+# CONFIG_SENSORS_LM90 is not set
+# CONFIG_SENSORS_LM92 is not set
+# CONFIG_SENSORS_LM93 is not set
+# CONFIG_SENSORS_MAX1619 is not set
+# CONFIG_SENSORS_MAX6650 is not set
+# CONFIG_SENSORS_PC87360 is not set
+# CONFIG_SENSORS_PC87427 is not set
+# CONFIG_SENSORS_SIS5595 is not set
+# CONFIG_SENSORS_DME1737 is not set
+# CONFIG_SENSORS_SMSC47M1 is not set
+# CONFIG_SENSORS_SMSC47M192 is not set
+# CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_THMC50 is not set
+# CONFIG_SENSORS_VIA686A is not set
+# CONFIG_SENSORS_VT1211 is not set
+# CONFIG_SENSORS_VT8231 is not set
+# CONFIG_SENSORS_W83781D is not set
+# CONFIG_SENSORS_W83791D is not set
+# CONFIG_SENSORS_W83792D is not set
+# CONFIG_SENSORS_W83793 is not set
+# CONFIG_SENSORS_W83L785TS is not set
+# CONFIG_SENSORS_W83627HF is not set
+# CONFIG_SENSORS_W83627EHF is not set
+# CONFIG_HWMON_DEBUG_CHIP is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+CONFIG_DAB=y
+# CONFIG_USB_DABUSB is not set
+
+#
+# Graphics support
+#
+# CONFIG_DRM is not set
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Console display driver support
+#
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_DUMMY_CONSOLE=y
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+CONFIG_HID_SUPPORT=y
+CONFIG_HID=y
+# CONFIG_HID_DEBUG is not set
+# CONFIG_HIDRAW is not set
+
+#
+# USB Input Devices
+#
+CONFIG_USB_HID=y
+# CONFIG_USB_HIDINPUT_POWERBOOK is not set
+# CONFIG_HID_FF is not set
+# CONFIG_USB_HIDDEV is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
+CONFIG_USB_ARCH_HAS_EHCI=y
+CONFIG_USB=y
+# CONFIG_USB_DEBUG is not set
+
+#
+# Miscellaneous USB options
+#
+CONFIG_USB_DEVICEFS=y
+CONFIG_USB_DEVICE_CLASS=y
+# CONFIG_USB_DYNAMIC_MINORS is not set
+# CONFIG_USB_OTG is not set
+
+#
+# USB Host Controller Drivers
+#
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_SPLIT_ISO=y
+CONFIG_USB_EHCI_ROOT_HUB_TT=y
+CONFIG_USB_EHCI_TT_NEWSCHED=y
+# CONFIG_USB_ISP116X_HCD is not set
+CONFIG_USB_OHCI_HCD=y
+# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
+# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
+CONFIG_USB_OHCI_LITTLE_ENDIAN=y
+CONFIG_USB_UHCI_HCD=y
+CONFIG_USB_SL811_HCD=y
+# CONFIG_USB_R8A66597_HCD is not set
+
+#
+# USB Device Class drivers
+#
+# CONFIG_USB_ACM is not set
+CONFIG_USB_PRINTER=y
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# may also be needed; see USB_STORAGE Help for more information
+#
+CONFIG_USB_STORAGE=y
+# CONFIG_USB_STORAGE_DEBUG is not set
+CONFIG_USB_STORAGE_DATAFAB=y
+CONFIG_USB_STORAGE_FREECOM=y
+# CONFIG_USB_STORAGE_ISD200 is not set
+CONFIG_USB_STORAGE_DPCM=y
+# CONFIG_USB_STORAGE_USBAT is not set
+CONFIG_USB_STORAGE_SDDR09=y
+CONFIG_USB_STORAGE_SDDR55=y
+CONFIG_USB_STORAGE_JUMPSHOT=y
+# CONFIG_USB_STORAGE_ALAUDA is not set
+# CONFIG_USB_STORAGE_KARMA is not set
+# CONFIG_USB_LIBUSUAL is not set
+
+#
+# USB Imaging devices
+#
+# CONFIG_USB_MDC800 is not set
+# CONFIG_USB_MICROTEK is not set
+# CONFIG_USB_MON is not set
+
+#
+# USB port drivers
+#
+
+#
+# USB Serial Converter support
+#
+# CONFIG_USB_SERIAL is not set
+
+#
+# USB Miscellaneous drivers
+#
+# CONFIG_USB_EMI62 is not set
+# CONFIG_USB_EMI26 is not set
+# CONFIG_USB_ADUTUX is not set
+# CONFIG_USB_AUERSWALD is not set
+# CONFIG_USB_RIO500 is not set
+# CONFIG_USB_LEGOTOWER is not set
+# CONFIG_USB_LCD is not set
+# CONFIG_USB_BERRY_CHARGE is not set
+# CONFIG_USB_LED is not set
+# CONFIG_USB_CYPRESS_CY7C63 is not set
+# CONFIG_USB_CYTHERM is not set
+# CONFIG_USB_PHIDGET is not set
+# CONFIG_USB_IDMOUSE is not set
+# CONFIG_USB_FTDI_ELAN is not set
+# CONFIG_USB_APPLEDISPLAY is not set
+# CONFIG_USB_SISUSBVGA is not set
+# CONFIG_USB_LD is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_IOWARRIOR is not set
+# CONFIG_USB_TEST is not set
+
+#
+# USB DSL modem support
+#
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+# CONFIG_MMC is not set
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+
+#
+# LED drivers
+#
+# CONFIG_LEDS_GPIO is not set
+
+#
+# LED Triggers
+#
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+# CONFIG_RTC_DEBUG is not set
+
+#
+# RTC interfaces
+#
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+# CONFIG_RTC_DRV_TEST is not set
+
+#
+# I2C RTC drivers
+#
+CONFIG_RTC_DRV_DS1307=y
+# CONFIG_RTC_DRV_DS1374 is not set
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+CONFIG_RTC_DRV_RS5C372=y
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
+# CONFIG_RTC_DRV_M41T80_WDT is not set
+
+#
+# SPI RTC drivers
+#
+
+#
+# Platform RTC drivers
+#
+# CONFIG_RTC_DRV_CMOS is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
+
+#
+# on-CPU RTC drivers
+#
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_FS_XATTR is not set
+# CONFIG_EXT4DEV_FS is not set
+CONFIG_JBD=y
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_QUOTA is not set
+CONFIG_DNOTIFY=y
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+CONFIG_ISO9660_FS=y
+# CONFIG_JOLIET is not set
+# CONFIG_ZISOFS is not set
+CONFIG_UDF_FS=m
+CONFIG_UDF_NLS=y
+
+#
+# DOS/FAT/NT Filesystems
+#
+CONFIG_FAT_FS=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_FAT_DEFAULT_CODEPAGE=437
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_FS_DEBUG=0
+CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
+# CONFIG_JFFS2_SUMMARY is not set
+# CONFIG_JFFS2_FS_XATTR is not set
+# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
+CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS2_LZO is not set
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
+CONFIG_CRAMFS=y
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFS_DIRECTIO is not set
+# CONFIG_NFSD is not set
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_SUNRPC_BIND34 is not set
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_ACORN_PARTITION is not set
+# CONFIG_OSF_PARTITION is not set
+# CONFIG_AMIGA_PARTITION is not set
+# CONFIG_ATARI_PARTITION is not set
+# CONFIG_MAC_PARTITION is not set
+CONFIG_MSDOS_PARTITION=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_MINIX_SUBPARTITION=y
+CONFIG_SOLARIS_X86_PARTITION=y
+CONFIG_UNIXWARE_DISKLABEL=y
+CONFIG_LDM_PARTITION=y
+CONFIG_LDM_DEBUG=y
+# CONFIG_SGI_PARTITION is not set
+# CONFIG_ULTRIX_PARTITION is not set
+CONFIG_SUN_PARTITION=y
+# CONFIG_KARMA_PARTITION is not set
+# CONFIG_EFI_PARTITION is not set
+# CONFIG_SYSV68_PARTITION is not set
+CONFIG_NLS=y
+CONFIG_NLS_DEFAULT="iso8859-1"
+CONFIG_NLS_CODEPAGE_437=y
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+CONFIG_NLS_CODEPAGE_850=y
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+# CONFIG_NLS_ASCII is not set
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_2=y
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+# CONFIG_NLS_ISO8859_15 is not set
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+# CONFIG_NLS_UTF8 is not set
+# CONFIG_DLM is not set
+CONFIG_INSTRUMENTATION=y
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_HEADERS_CHECK is not set
+# CONFIG_DEBUG_KERNEL is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+CONFIG_FRAME_POINTER=y
+# CONFIG_SAMPLES is not set
+CONFIG_DEBUG_USER=y
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_ALGAPI=m
+CONFIG_CRYPTO_BLKCIPHER=m
+CONFIG_CRYPTO_MANAGER=m
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_MD4 is not set
+# CONFIG_CRYPTO_MD5 is not set
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_GF128MUL is not set
+CONFIG_CRYPTO_ECB=m
+CONFIG_CRYPTO_CBC=m
+CONFIG_CRYPTO_PCBC=m
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_XTS is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+# CONFIG_CRYPTO_DES is not set
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_AES is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_SEED is not set
+# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_TEST is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+CONFIG_CRYPTO_HW=y
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+CONFIG_CRC_CCITT=y
+CONFIG_CRC16=y
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+CONFIG_LIBCRC32C=y
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
-- 
cgit v1.2.3-59-g8ed1b


From 60ce1c20068ec2c138cdf9e5cbe583cc60883c62 Mon Sep 17 00:00:00 2001
From: Martin Michlmayr <tbm@cyrius.com>
Date: Wed, 14 Nov 2007 08:58:30 +0100
Subject: [ARM] Orion: enable CONFIG_RTC_DRV_M41T80 for D-Link DNS-323

The D-Link DNS-323 uses a M41T80 RTC chip, so enable this driver in
the Orion defconfig.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Cc: Herbert Valerio Riedel <hvr@gnu.org>
Acked-by: Nicolas Pitre <nico@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/configs/orion_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/configs/orion_defconfig b/arch/arm/configs/orion_defconfig
index 9a42b2fc9f65..85b80f6b78e1 100644
--- a/arch/arm/configs/orion_defconfig
+++ b/arch/arm/configs/orion_defconfig
@@ -1108,7 +1108,7 @@ CONFIG_RTC_DRV_RS5C372=y
 # CONFIG_RTC_DRV_X1205 is not set
 # CONFIG_RTC_DRV_PCF8563 is not set
 # CONFIG_RTC_DRV_PCF8583 is not set
-# CONFIG_RTC_DRV_M41T80 is not set
+CONFIG_RTC_DRV_M41T80=y
 # CONFIG_RTC_DRV_M41T80_WDT is not set
 
 #
-- 
cgit v1.2.3-59-g8ed1b


From 2f0a8df40ff008822e5570b3323c56622cd92c95 Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Thu, 22 Nov 2007 16:58:08 +0100
Subject: [I2C] i2c-mv64xxx: Don't set i2c_adapter.retries

I2C adapter drivers are supposed to handle retries on nack by themselves
if they do, so there's no point in setting .retries if they don't.

As this retry mechanism is going away (at least in its current form),
clean this up now so that we don't get build failures later.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Mark A. Greer <mgreer@mvista.com>
---
 arch/powerpc/sysdev/mv64x60_dev.c | 6 ------
 arch/ppc/syslib/mv64x60.c         | 1 -
 drivers/i2c/busses/i2c-mv64xxx.c  | 1 -
 include/linux/mv643xx_i2c.h       | 1 -
 4 files changed, 9 deletions(-)

(limited to 'arch')

diff --git a/arch/powerpc/sysdev/mv64x60_dev.c b/arch/powerpc/sysdev/mv64x60_dev.c
index 548a32082e4a..4316f5a48a0f 100644
--- a/arch/powerpc/sysdev/mv64x60_dev.c
+++ b/arch/powerpc/sysdev/mv64x60_dev.c
@@ -361,12 +361,6 @@ static int __init mv64x60_i2c_device_setup(struct device_node *np, int id)
 	else
 		pdata.timeout = 1000;	/* 1 second */
 
-	prop = of_get_property(np, "retries", NULL);
-	if (prop)
-		pdata.retries = *prop;
-	else
-		pdata.retries = 1;
-
 	pdev = platform_device_alloc(MV64XXX_I2C_CTLR_NAME, id);
 	if (!pdev)
 		return -ENOMEM;
diff --git a/arch/ppc/syslib/mv64x60.c b/arch/ppc/syslib/mv64x60.c
index 2744b8a6f66a..90fe904d3614 100644
--- a/arch/ppc/syslib/mv64x60.c
+++ b/arch/ppc/syslib/mv64x60.c
@@ -411,7 +411,6 @@ static struct mv64xxx_i2c_pdata mv64xxx_i2c_pdata = {
 	.freq_m			= 8,
 	.freq_n			= 3,
 	.timeout		= 1000, /* Default timeout of 1 second */
-	.retries		= 1,
 };
 
 static struct resource mv64xxx_i2c_resources[] = {
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index cdd1ef99fcff..036e6a883e67 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -532,7 +532,6 @@ mv64xxx_i2c_probe(struct platform_device *pd)
 	drv_data->adapter.owner = THIS_MODULE;
 	drv_data->adapter.class = I2C_CLASS_HWMON;
 	drv_data->adapter.timeout = pdata->timeout;
-	drv_data->adapter.retries = pdata->retries;
 	drv_data->adapter.nr = pd->id;
 	platform_set_drvdata(pd, drv_data);
 	i2c_set_adapdata(&drv_data->adapter, drv_data);
diff --git a/include/linux/mv643xx_i2c.h b/include/linux/mv643xx_i2c.h
index adb629b15477..5db5152e9de5 100644
--- a/include/linux/mv643xx_i2c.h
+++ b/include/linux/mv643xx_i2c.h
@@ -17,7 +17,6 @@ struct mv64xxx_i2c_pdata {
 	u32	freq_m;
 	u32	freq_n;
 	u32	timeout;	/* In milliseconds */
-	u32	retries;
 };
 
 #endif /*_MV64XXX_I2C_H_*/
-- 
cgit v1.2.3-59-g8ed1b


From 144aa3db1e8faa34bb33c61131494ac879a6d978 Mon Sep 17 00:00:00 2001
From: Herbert Valerio Riedel <hvr@gnu.org>
Date: Mon, 12 Nov 2007 09:51:36 +0200
Subject: [ARM] Orion: I2C support

The Orion I2C controller is the same one used in the Discovery
family (MV643XX). This patch include the common platform_device
stuff according to the existing i2c_mv64xxx.c conventions.

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
---
 arch/arm/mach-orion/common.c | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c
index ff34827f82a5..5e20b6b32508 100644
--- a/arch/arm/mach-orion/common.c
+++ b/arch/arm/mach-orion/common.c
@@ -15,6 +15,7 @@
 #include <linux/platform_device.h>
 #include <linux/serial_8250.h>
 #include <linux/mv643xx_eth.h>
+#include <linux/mv643xx_i2c.h>
 #include <asm/page.h>
 #include <asm/timex.h>
 #include <asm/mach/map.h>
@@ -212,6 +213,42 @@ void __init orion_eth_init(struct mv643xx_eth_platform_data *eth_data)
 	platform_device_register(&orion_eth);
 }
 
+/*****************************************************************************
+ * I2C controller
+ * (The Orion and Discovery (MV643xx) families share the same I2C controller)
+ ****************************************************************************/
+
+static struct mv64xxx_i2c_pdata orion_i2c_pdata = {
+	.freq_m		= 8, /* assumes 166 MHz TCLK */
+	.freq_n		= 3,
+	.timeout	= 1000, /* Default timeout of 1 second */
+};
+
+static struct resource orion_i2c_resources[] = {
+	{
+		.name   = "i2c base",
+		.start  = I2C_BASE,
+		.end    = I2C_BASE + 0x20 -1,
+		.flags  = IORESOURCE_MEM,
+	},
+	{
+		.name   = "i2c irq",
+		.start  = IRQ_ORION_I2C,
+		.end    = IRQ_ORION_I2C,
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device orion_i2c = {
+	.name		= MV64XXX_I2C_CTLR_NAME,
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(orion_i2c_resources),
+	.resource	= orion_i2c_resources,
+	.dev		= {
+		.platform_data = &orion_i2c_pdata,
+	},
+};
+
 /*****************************************************************************
  * General
  ****************************************************************************/
@@ -274,4 +311,5 @@ void __init orion_init(void)
 	platform_device_register(&orion_ehci0);
 	if (dev == MV88F5182_DEV_ID)
 		platform_device_register(&orion_ehci1);
+	platform_device_register(&orion_i2c);
 }
-- 
cgit v1.2.3-59-g8ed1b


From 3faf2ee870c26f6a809af3f32368f96c357ed91b Mon Sep 17 00:00:00 2001
From: Byron Bradley <byron.bbradley@gmail.com>
Date: Sat, 15 Dec 2007 20:05:49 +0000
Subject: [ARM] Orion: add support for QNAP TS-109/TS-209

This patch adds support for the Orion/MV88F5182 based QNAP
TS-109/TS-209 NAS device. The driver for the S-35390A RTC
chip on this board has been submitted to LKML separately.

Signed-off-by: Byron Bradley <byron.bbradley@gmail.com>
Tested-by: Oyvind Repvik <repvik@kynisk.com>
Tested-by: Tim Ellis <timtimred@foonas.org>
Tested-by: Herbert Valerio Riedel <hvr@gnu.org>
Acked-by: Tzachi Perelstein <tzachi@marvell.com>
---
 arch/arm/configs/orion_defconfig  |   1 +
 arch/arm/mach-orion/Kconfig       |   6 +
 arch/arm/mach-orion/Makefile      |   1 +
 arch/arm/mach-orion/ts209-setup.c | 305 ++++++++++++++++++++++++++++++++++++++
 4 files changed, 313 insertions(+)
 create mode 100644 arch/arm/mach-orion/ts209-setup.c

(limited to 'arch')

diff --git a/arch/arm/configs/orion_defconfig b/arch/arm/configs/orion_defconfig
index 85b80f6b78e1..17a55def1103 100644
--- a/arch/arm/configs/orion_defconfig
+++ b/arch/arm/configs/orion_defconfig
@@ -147,6 +147,7 @@ CONFIG_MACH_DB88F5281=y
 CONFIG_MACH_RD88F5182=y
 CONFIG_MACH_KUROBOX_PRO=y
 CONFIG_MACH_DNS323=y
+CONFIG_MACH_TS209=y
 
 #
 # Boot options
diff --git a/arch/arm/mach-orion/Kconfig b/arch/arm/mach-orion/Kconfig
index bdaed867e450..1dcbb6ac5a30 100644
--- a/arch/arm/mach-orion/Kconfig
+++ b/arch/arm/mach-orion/Kconfig
@@ -30,6 +30,12 @@ config MACH_DNS323
 	  Say 'Y' here if you want your kernel to support the
 	  D-Link DNS-323 platform.
 
+config MACH_TS209
+	bool "QNAP TS-109/TS-209"
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  QNAP TS-109/TS-209 platform.
+
 endmenu
 
 endif
diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
index 237ce98ad0ef..f91d937a73e8 100644
--- a/arch/arm/mach-orion/Makefile
+++ b/arch/arm/mach-orion/Makefile
@@ -3,3 +3,4 @@ obj-$(CONFIG_MACH_DB88F5281)	+= db88f5281-setup.o
 obj-$(CONFIG_MACH_RD88F5182)	+= rd88f5182-setup.o
 obj-$(CONFIG_MACH_KUROBOX_PRO)	+= kurobox_pro-setup.o
 obj-$(CONFIG_MACH_DNS323)	+= dns323-setup.o
+obj-$(CONFIG_MACH_TS209)	+= ts209-setup.o
diff --git a/arch/arm/mach-orion/ts209-setup.c b/arch/arm/mach-orion/ts209-setup.c
new file mode 100644
index 000000000000..34f88ac24ac8
--- /dev/null
+++ b/arch/arm/mach-orion/ts209-setup.c
@@ -0,0 +1,305 @@
+/*
+ * QNAP TS-109/TS-209 Board Setup
+ *
+ * Maintainer: Byron Bradley <byron.bbradley@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/nand.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <asm/mach-types.h>
+#include <asm/gpio.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <asm/arch/orion.h>
+#include <asm/arch/platform.h>
+#include "common.h"
+
+#define QNAP_TS209_NOR_BOOT_BASE 0xf4000000
+#define QNAP_TS209_NOR_BOOT_SIZE SZ_8M
+
+/****************************************************************************
+ * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
+ *     partitions on the device because we want to keep compatability with
+ *     existing QNAP firmware.
+ *
+ * Layout as used by QNAP:
+ *  [2] 0x00000000-0x00200000 : "Kernel"
+ *  [3] 0x00200000-0x00600000 : "RootFS1"
+ *  [4] 0x00600000-0x00700000 : "RootFS2"
+ *  [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
+ *  [5] 0x00760000-0x00780000 : "U-Boot Config"
+ *  [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
+ ***************************************************************************/
+static struct mtd_partition qnap_ts209_partitions[] = {
+	{
+		.name       = "U-Boot",
+		.size       = 0x00080000,
+		.offset     = 0x00780000,
+		.mask_flags = MTD_WRITEABLE,
+	}, {
+		.name   = "Kernel",
+		.size   = 0x00200000,
+		.offset = 0,
+	}, {
+		.name   = "RootFS1",
+		.size   = 0x00400000,
+		.offset = 0x00200000,
+	}, {
+		.name   = "RootFS2",
+		.size   = 0x00100000,
+		.offset = 0x00600000,
+	}, {
+		.name   = "U-Boot Config",
+		.size   = 0x00020000,
+		.offset = 0x00760000,
+	}, {
+		.name       = "NAS Config",
+		.size       = 0x00060000,
+		.offset     = 0x00700000,
+		.mask_flags = MTD_WRITEABLE,
+	}
+};
+
+static struct physmap_flash_data qnap_ts209_nor_flash_data = {
+	.width    = 1,
+	.parts    = qnap_ts209_partitions,
+	.nr_parts = ARRAY_SIZE(qnap_ts209_partitions)
+};
+
+static struct resource qnap_ts209_nor_flash_resource = {
+	.flags = IORESOURCE_MEM,
+	.start = QNAP_TS209_NOR_BOOT_BASE,
+	.end   = QNAP_TS209_NOR_BOOT_BASE + QNAP_TS209_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device qnap_ts209_nor_flash = {
+	.name          = "physmap-flash",
+	.id            = 0,
+	.dev           = { .platform_data = &qnap_ts209_nor_flash_data, },
+	.resource      = &qnap_ts209_nor_flash_resource,
+	.num_resources = 1,
+};
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+#define QNAP_TS209_PCI_SLOT0_OFFS	7
+#define QNAP_TS209_PCI_SLOT0_IRQ_PIN	6
+#define QNAP_TS209_PCI_SLOT1_IRQ_PIN	7
+
+void __init qnap_ts209_pci_preinit(void)
+{
+	int pin;
+
+	/*
+	 * Configure PCI GPIO IRQ pins
+	 */
+	pin = QNAP_TS209_PCI_SLOT0_IRQ_PIN;
+	if (gpio_request(pin, "PCI Int1") == 0) {
+		if (gpio_direction_input(pin) == 0) {
+			set_irq_type(gpio_to_irq(pin), IRQT_LOW);
+		} else {
+			printk(KERN_ERR "qnap_ts209_pci_preinit failed to "
+					"set_irq_type pin %d\n", pin);
+			gpio_free(pin);
+		}
+	} else {
+		printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
+				"%d\n", pin);
+	}
+
+	pin = QNAP_TS209_PCI_SLOT1_IRQ_PIN;
+	if (gpio_request(pin, "PCI Int2") == 0) {
+		if (gpio_direction_input(pin) == 0) {
+			set_irq_type(gpio_to_irq(pin), IRQT_LOW);
+		} else {
+			printk(KERN_ERR "qnap_ts209_pci_preinit failed "
+					"to set_irq_type pin %d\n", pin);
+			gpio_free(pin);
+		}
+	} else {
+		printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
+				"%d\n", pin);
+	}
+}
+
+static int __init qnap_ts209_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	/*
+	 * PCIE IRQ is connected internally (not GPIO)
+	 */
+	if (dev->bus->number == orion_pcie_local_bus_nr())
+		return IRQ_ORION_PCIE0_INT;
+
+	/*
+	 * PCI IRQs are connected via GPIOs
+	 */
+	switch (slot - QNAP_TS209_PCI_SLOT0_OFFS) {
+	case 0:
+		return gpio_to_irq(QNAP_TS209_PCI_SLOT0_IRQ_PIN);
+	case 1:
+		return gpio_to_irq(QNAP_TS209_PCI_SLOT1_IRQ_PIN);
+	default:
+		return -1;
+	}
+}
+
+static struct hw_pci qnap_ts209_pci __initdata = {
+	.nr_controllers = 2,
+	.preinit        = qnap_ts209_pci_preinit,
+	.swizzle        = pci_std_swizzle,
+	.setup          = orion_pci_sys_setup,
+	.scan           = orion_pci_sys_scan_bus,
+	.map_irq        = qnap_ts209_pci_map_irq,
+};
+
+static int __init qnap_ts209_pci_init(void)
+{
+	if (machine_is_ts_x09())
+		pci_common_init(&qnap_ts209_pci);
+
+	return 0;
+}
+
+subsys_initcall(qnap_ts209_pci_init);
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data qnap_ts209_eth_data = {
+	.phy_addr       = 8,
+	.force_phy_addr = 1,
+};
+
+/*****************************************************************************
+ * RTC S35390A on I2C bus
+ ****************************************************************************/
+static struct i2c_board_info __initdata qnap_ts209_i2c_rtc = {
+       .driver_name = "rtc-s35390a",
+       .addr        = 0x30,
+};
+
+/****************************************************************************
+ * GPIO Attached Keys
+ *     Power button is attached to the PIC microcontroller
+ ****************************************************************************/
+
+#define QNAP_TS209_GPIO_KEY_MEDIA	1
+#define QNAP_TS209_GPIO_KEY_RESET	2
+
+static struct gpio_keys_button qnap_ts209_buttons[] = {
+	{
+		.code		= KEY_RESTART,
+		.gpio		= QNAP_TS209_GPIO_KEY_MEDIA,
+		.desc		= "USB Copy Button",
+		.active_low	= 1,
+	},
+	{
+		.code		= KEY_POWER,
+		.gpio		= QNAP_TS209_GPIO_KEY_RESET,
+		.desc		= "Reset Button",
+		.active_low	= 1,
+	}
+};
+
+static struct gpio_keys_platform_data qnap_ts209_button_data = {
+	.buttons	= qnap_ts209_buttons,
+	.nbuttons       = ARRAY_SIZE(qnap_ts209_buttons),
+};
+
+static struct platform_device qnap_ts209_button_device = {
+	.name		= "gpio-keys",
+	.id		= -1,
+	.num_resources	= 0,
+	.dev		= { .platform_data  = &qnap_ts209_button_data, },
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+
+static struct platform_device *qnap_ts209_devices[] __initdata = {
+	&qnap_ts209_nor_flash,
+	&qnap_ts209_button_device,
+};
+
+static void __init qnap_ts209_init(void)
+{
+	/*
+	 * Setup basic Orion functions. Need to be called early.
+	 */
+	orion_init();
+
+	/*
+	 * Setup flash mapping
+	 */
+	orion_setup_cpu_win(ORION_DEV_BOOT, QNAP_TS209_NOR_BOOT_BASE,
+			    QNAP_TS209_NOR_BOOT_SIZE, -1);
+
+	/*
+	 * Open a special address decode windows for the PCIE WA.
+	 */
+	orion_write(ORION_REGS_BASE | 0x20074, ORION_PCIE_WA_BASE);
+	orion_write(ORION_REGS_BASE | 0x20070, (0x7941 |
+		(((ORION_PCIE_WA_SIZE >> 16) - 1)) << 16));
+
+	/*
+	 * Setup Multiplexing Pins --
+	 * MPP[0] Reserved
+	 * MPP[1] USB copy button (0 active)
+	 * MPP[2] Load defaults button (0 active)
+	 * MPP[3] GPIO RTC
+	 * MPP[4-5] Reserved
+	 * MPP[6] PCI Int A
+	 * MPP[7] PCI Int B
+	 * MPP[8-11] Reserved
+	 * MPP[12] SATA 0 presence
+	 * MPP[13] SATA 1 presence
+	 * MPP[14] SATA 0 active
+	 * MPP[15] SATA 1 active
+	 * MPP[16] UART1 RXD
+	 * MPP[17] UART1 TXD
+	 * MPP[18] SW_RST (0 active)
+	 * MPP[19] Reserved
+	 * MPP[20] PCI clock 0
+	 * MPP[21] PCI clock 1
+	 * MPP[22] USB 0 over current
+	 * MPP[23-25] Reserved
+	 */
+	orion_write(MPP_0_7_CTRL, 0x3);
+	orion_write(MPP_8_15_CTRL, 0x55550000);
+	orion_write(MPP_16_19_CTRL, 0x5500);
+	orion_gpio_set_valid_pins(0x3cc0fff);
+
+	platform_add_devices(qnap_ts209_devices,
+				ARRAY_SIZE(qnap_ts209_devices));
+	i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1);
+	orion_eth_init(&qnap_ts209_eth_data);
+}
+
+MACHINE_START(TS209, "QNAP TS-109/TS-209")
+	/* Maintainer:  Byron Bradley <byron.bbradley@gmail.com> */
+	.phys_io	= ORION_REGS_BASE,
+	.io_pg_offst	= ((ORION_REGS_BASE) >> 18) & 0xFFFC,
+	.boot_params	= 0x00000100,
+	.init_machine	= qnap_ts209_init,
+	.map_io		= orion_map_io,
+	.init_irq	= orion_init_irq,
+	.timer		= &orion_timer,
+MACHINE_END
-- 
cgit v1.2.3-59-g8ed1b


From 8f86dda3ed8f05748f2351ae967926227a91ca2a Mon Sep 17 00:00:00 2001
From: Herbert Valerio Riedel <hvr@gnu.org>
Date: Sun, 16 Dec 2007 17:42:31 +0100
Subject: [ARM] Orion: implement power-off method for QNAP TS-109/209

Since the PIC is attached to UART1, it doesn't need a kernel device driver
of its own; but powering off is something that the kernel should do, so
this patch forcefully configures the UART1 for 19200 baud and sends the
character that tells the PIC to cut the power.

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Cc: Byron Bradley <byron.bbradley@gmail.com>
Acked-by: Nicolas Pitre <nico@marvell.com>
---
 arch/arm/mach-orion/ts209-setup.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-orion/ts209-setup.c b/arch/arm/mach-orion/ts209-setup.c
index 34f88ac24ac8..e3e930efd155 100644
--- a/arch/arm/mach-orion/ts209-setup.c
+++ b/arch/arm/mach-orion/ts209-setup.c
@@ -20,6 +20,7 @@
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
 #include <linux/i2c.h>
+#include <linux/serial_reg.h>
 #include <asm/mach-types.h>
 #include <asm/gpio.h>
 #include <asm/mach/arch.h>
@@ -239,6 +240,32 @@ static struct platform_device *qnap_ts209_devices[] __initdata = {
 	&qnap_ts209_button_device,
 };
 
+/*
+ * QNAP TS-[12]09 specific power off method via UART1-attached PIC
+ */
+
+#define UART1_REG(x)  (UART1_BASE + ((UART_##x) << 2))
+
+static void qnap_ts209_power_off(void)
+{
+	/* 19200 baud divisor */
+	const unsigned divisor = ((ORION_TCLK + (8 * 19200)) / (16 * 19200));
+
+	pr_info("%s: triggering power-off...\n", __func__);
+
+	/* hijack uart1 and reset into sane state (19200,8n1) */
+	orion_write(UART1_REG(LCR), 0x83);
+	orion_write(UART1_REG(DLL), divisor & 0xff);
+	orion_write(UART1_REG(DLM), (divisor >> 8) & 0xff);
+	orion_write(UART1_REG(LCR), 0x03);
+	orion_write(UART1_REG(IER), 0x00);
+	orion_write(UART1_REG(FCR), 0x00);
+	orion_write(UART1_REG(MCR), 0x00);
+
+	/* send the power-off command 'A' to PIC */
+	orion_write(UART1_REG(TX), 'A');
+}
+
 static void __init qnap_ts209_init(void)
 {
 	/*
@@ -287,6 +314,9 @@ static void __init qnap_ts209_init(void)
 	orion_write(MPP_16_19_CTRL, 0x5500);
 	orion_gpio_set_valid_pins(0x3cc0fff);
 
+	/* register ts209 specific power-off method */
+	pm_power_off = qnap_ts209_power_off;
+
 	platform_add_devices(qnap_ts209_devices,
 				ARRAY_SIZE(qnap_ts209_devices));
 	i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1);
-- 
cgit v1.2.3-59-g8ed1b


From 03f5b2cee6cabd0400b9f89956c373a0b5d3802a Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Thu, 8 Nov 2007 11:17:19 +0000
Subject: [ARM] pxa: avoid always registering MMC, I2C, IrDA and framebuffer
 devices

Only register the MMC, framebuffer, I2C and FICP devices when the
platform supplies the necessary platform data structures for the
devices.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/devices.h |  2 ++
 arch/arm/mach-pxa/generic.c | 20 ++++++++++++++++----
 arch/arm/mach-pxa/pxa25x.c  |  4 ----
 arch/arm/mach-pxa/pxa27x.c  |  7 +------
 arch/arm/mach-pxa/pxa3xx.c  |  4 ----
 5 files changed, 19 insertions(+), 18 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/devices.h b/arch/arm/mach-pxa/devices.h
index 94c8d5cdd60a..51162a7dba07 100644
--- a/arch/arm/mach-pxa/devices.h
+++ b/arch/arm/mach-pxa/devices.h
@@ -12,3 +12,5 @@ extern struct platform_device pxa_device_rtc;
 
 extern struct platform_device pxa27x_device_i2c_power;
 extern struct platform_device pxa27x_device_ohci;
+
+void __init pxa_register_device(struct platform_device *dev, void *data);
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
index 1c34946ee16e..3d863c919e8b 100644
--- a/arch/arm/mach-pxa/generic.c
+++ b/arch/arm/mach-pxa/generic.c
@@ -235,6 +235,18 @@ void __init pxa_map_io(void)
 }
 
 
+void __init pxa_register_device(struct platform_device *dev, void *data)
+{
+	int ret;
+
+	dev->dev.platform_data = data;
+
+	ret = platform_device_register(dev);
+	if (ret)
+		dev_err(&dev->dev, "unable to register device: %d\n", ret);
+}
+
+
 static struct resource pxamci_resources[] = {
 	[0] = {
 		.start	= 0x41100000,
@@ -263,7 +275,7 @@ struct platform_device pxa_device_mci = {
 
 void __init pxa_set_mci_info(struct pxamci_platform_data *info)
 {
-	pxa_device_mci.dev.platform_data = info;
+	pxa_register_device(&pxa_device_mci, info);
 }
 
 
@@ -328,7 +340,7 @@ struct platform_device pxa_device_fb = {
 
 void __init set_pxa_fb_info(struct pxafb_mach_info *info)
 {
-	pxa_device_fb.dev.platform_data = info;
+	pxa_register_device(&pxa_device_fb, info);
 }
 
 void __init set_pxa_fb_parent(struct device *parent_dev)
@@ -433,7 +445,7 @@ struct platform_device pxa_device_i2c = {
 
 void __init pxa_set_i2c_info(struct i2c_pxa_platform_data *info)
 {
-	pxa_device_i2c.dev.platform_data = info;
+	pxa_register_device(&pxa_device_i2c, info);
 }
 
 static struct resource pxai2s_resources[] = {
@@ -468,7 +480,7 @@ struct platform_device pxa_device_ficp = {
 
 void __init pxa_set_ficp_info(struct pxaficp_platform_data *info)
 {
-	pxa_device_ficp.dev.platform_data = info;
+	pxa_register_device(&pxa_device_ficp, info);
 }
 
 struct platform_device pxa_device_rtc = {
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 9732d5d9466b..d9ee0d9b36df 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -287,15 +287,11 @@ void __init pxa25x_init_irq(void)
 }
 
 static struct platform_device *pxa25x_devices[] __initdata = {
-	&pxa_device_mci,
 	&pxa_device_udc,
-	&pxa_device_fb,
 	&pxa_device_ffuart,
 	&pxa_device_btuart,
 	&pxa_device_stuart,
-	&pxa_device_i2c,
 	&pxa_device_i2s,
-	&pxa_device_ficp,
 	&pxa_device_rtc,
 };
 
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 8e126e6b74c3..e7151dba6682 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -401,7 +401,7 @@ struct platform_device pxa27x_device_ohci = {
 
 void __init pxa_set_ohci_info(struct pxaohci_platform_data *info)
 {
-	pxa27x_device_ohci.dev.platform_data = info;
+	pxa_register_device(&pxa27x_device_ohci, info);
 }
 
 static struct resource i2c_power_resources[] = {
@@ -424,18 +424,13 @@ struct platform_device pxa27x_device_i2c_power = {
 };
 
 static struct platform_device *devices[] __initdata = {
-	&pxa_device_mci,
 	&pxa_device_udc,
-	&pxa_device_fb,
 	&pxa_device_ffuart,
 	&pxa_device_btuart,
 	&pxa_device_stuart,
-	&pxa_device_i2c,
 	&pxa_device_i2s,
-	&pxa_device_ficp,
 	&pxa_device_rtc,
 	&pxa27x_device_i2c_power,
-	&pxa27x_device_ohci,
 };
 
 static int __init pxa27x_init(void)
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 61d9c9d69e6b..37fbc4face09 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -209,15 +209,11 @@ void __init pxa3xx_init_irq(void)
  */
 
 static struct platform_device *devices[] __initdata = {
-	&pxa_device_mci,
 	&pxa_device_udc,
-	&pxa_device_fb,
 	&pxa_device_ffuart,
 	&pxa_device_btuart,
 	&pxa_device_stuart,
-	&pxa_device_i2c,
 	&pxa_device_i2s,
-	&pxa_device_ficp,
 	&pxa_device_rtc,
 };
 
-- 
cgit v1.2.3-59-g8ed1b


From 3777f7748a5d10222a55ce88f753a19b16c17032 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Thu, 8 Nov 2007 11:22:48 +0000
Subject: [ARM] pxa: mainstone: update backlight to use the backlight
 infrastructure

Linux has framebuffer backlight support infrastructure which should
be used to expose backlight attributes.  Mainstone should use it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/mainstone.c | 60 +++++++++++++++++++++++++++++++++++--------
 1 file changed, 50 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 41d8c6cea62b..a5db00c38f1f 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -23,6 +23,7 @@
 #include <linux/ioport.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
+#include <linux/backlight.h>
 
 #include <asm/types.h>
 #include <asm/setup.h>
@@ -263,21 +264,60 @@ static struct platform_device mst_flash_device[2] = {
 	},
 };
 
-static void mainstone_backlight_power(int on)
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+static int mainstone_backlight_update_status(struct backlight_device *bl)
 {
-	if (on) {
+	int brightness = bl->props.brightness;
+
+	if (bl->props.power != FB_BLANK_UNBLANK ||
+	    bl->props.fb_blank != FB_BLANK_UNBLANK)
+		brightness = 0;
+
+	if (brightness != 0) {
 		pxa_gpio_mode(GPIO16_PWM0_MD);
 		pxa_set_cken(CKEN_PWM0, 1);
-		PWM_CTRL0 = 0;
-		PWM_PWDUTY0 = 0x3ff;
-		PWM_PERVAL0 = 0x3ff;
-	} else {
-		PWM_CTRL0 = 0;
-		PWM_PWDUTY0 = 0x0;
-		PWM_PERVAL0 = 0x3FF;
+	}
+	PWM_CTRL0 = 0;
+	PWM_PWDUTY0 = brightness;
+	PWM_PERVAL0 = bl->props.max_brightness;
+	if (brightness == 0)
 		pxa_set_cken(CKEN_PWM0, 0);
+	return 0; /* pointless return value */
+}
+
+static int mainstone_backlight_get_brightness(struct backlight_device *bl)
+{
+	return PWM_PWDUTY0;
+}
+
+static /*const*/ struct backlight_ops mainstone_backlight_ops = {
+	.update_status	= mainstone_backlight_update_status,
+	.get_brightness	= mainstone_backlight_get_brightness,
+};
+
+static void __init mainstone_backlight_register(void)
+{
+	struct backlight_device *bl;
+
+	bl = backlight_device_register("mainstone-bl", &pxa_device_fb.dev,
+				       NULL, &mainstone_backlight_ops);
+	if (IS_ERR(bl)) {
+		printk(KERN_ERR "mainstone: unable to register backlight: %ld\n",
+		       PTR_ERR(bl));
+		return;
 	}
+
+	/*
+	 * broken design - register-then-setup interfaces are
+	 * utterly broken by definition.
+	 */
+	bl->props.max_brightness = 1023;
+	bl->props.brightness = 1023;
+	backlight_update_status(bl);
 }
+#else
+#define mainstone_backlight_register()	do { } while (0)
+#endif
 
 static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
 	.pixclock		= 50000,
@@ -311,7 +351,6 @@ static struct pxafb_mach_info mainstone_pxafb_info = {
 	.num_modes      	= 1,
 	.lccr0			= LCCR0_Act,
 	.lccr3			= LCCR3_PCP,
-	.pxafb_backlight_power	= mainstone_backlight_power,
 };
 
 static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_int, void *data)
@@ -473,6 +512,7 @@ static void __init mainstone_init(void)
 		mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode;
 
 	set_pxa_fb_info(&mainstone_pxafb_info);
+	mainstone_backlight_register();
 
 	pxa_set_mci_info(&mainstone_mci_platform_data);
 	pxa_set_ficp_info(&mainstone_ficp_platform_data);
-- 
cgit v1.2.3-59-g8ed1b


From a88264c24c44924a549f3d596b86d611b7ee9909 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Mon, 12 Nov 2007 22:45:16 +0000
Subject: [ARM] pxa: remove periodic mode emulation support

Apparantly, the generic time subsystem can accurately emulate periodic
mode via the one-shot support code, so we don't need our own periodic
emulation code anymore.  Just ensure that we build support for one shot
into the generic time subsystem.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig         |  1 +
 arch/arm/mach-pxa/time.c | 61 +++++++-----------------------------------------
 2 files changed, 9 insertions(+), 53 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a04f507e7f2c..1be718208704 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -345,6 +345,7 @@ config ARCH_PXA
 	select GENERIC_GPIO
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
+	select TICK_ONESHOT
 	help
 	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
 
diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c
index fbfa1920353d..3c4abbf31803 100644
--- a/arch/arm/mach-pxa/time.c
+++ b/arch/arm/mach-pxa/time.c
@@ -59,55 +59,17 @@ unsigned long long sched_clock(void)
 }
 
 
+#define MIN_OSCR_DELTA 16
+
 static irqreturn_t
 pxa_ost0_interrupt(int irq, void *dev_id)
 {
-	int next_match;
 	struct clock_event_device *c = dev_id;
 
-	if (c->mode == CLOCK_EVT_MODE_ONESHOT) {
-		/* Disarm the compare/match, signal the event. */
-		OIER &= ~OIER_E0;
-		OSSR = OSSR_M0;
-		c->event_handler(c);
-	} else if (c->mode == CLOCK_EVT_MODE_PERIODIC) {
-		/* Call the event handler as many times as necessary
-		 * to recover missed events, if any (if we update
-		 * OSMR0 and OSCR0 is still ahead of us, we've missed
-		 * the event).  As we're dealing with that, re-arm the
-		 * compare/match for the next event.
-		 *
-		 * HACK ALERT:
-		 *
-		 * There's a latency between the instruction that
-		 * writes to OSMR0 and the actual commit to the
-		 * physical hardware, because the CPU doesn't (have
-		 * to) run at bus speed, there's a write buffer
-		 * between the CPU and the bus, etc. etc.  So if the
-		 * target OSCR0 is "very close", to the OSMR0 load
-		 * value, the update to OSMR0 might not get to the
-		 * hardware in time and we'll miss that interrupt.
-		 *
-		 * To be safe, if the new OSMR0 is "very close" to the
-		 * target OSCR0 value, we call the event_handler as
-		 * though the event actually happened.  According to
-		 * Nico's comment in the previous version of this
-		 * code, experience has shown that 6 OSCR ticks is
-		 * "very close" but he went with 8.  We will use 16,
-		 * based on the results of testing on PXA270.
-		 *
-		 * To be doubly sure, we also tell clkevt via
-		 * clockevents_register_device() not to ask for
-		 * anything that might put us "very close".
-	 */
-#define MIN_OSCR_DELTA 16
-		do {
-			OSSR = OSSR_M0;
-			next_match = (OSMR0 += LATCH);
-			c->event_handler(c);
-		} while (((signed long)(next_match - OSCR) <= MIN_OSCR_DELTA)
-			 && (c->mode == CLOCK_EVT_MODE_PERIODIC));
-	}
+	/* Disarm the compare/match, signal the event. */
+	OIER &= ~OIER_E0;
+	OSSR = OSSR_M0;
+	c->event_handler(c);
 
 	return IRQ_HANDLED;
 }
@@ -133,14 +95,6 @@ pxa_osmr0_set_mode(enum clock_event_mode mode, struct clock_event_device *dev)
 	unsigned long irqflags;
 
 	switch (mode) {
-	case CLOCK_EVT_MODE_PERIODIC:
-		raw_local_irq_save(irqflags);
-		OSSR = OSSR_M0;
-		OIER |= OIER_E0;
-		OSMR0 = OSCR + LATCH;
-		raw_local_irq_restore(irqflags);
-		break;
-
 	case CLOCK_EVT_MODE_ONESHOT:
 		raw_local_irq_save(irqflags);
 		OIER &= ~OIER_E0;
@@ -158,13 +112,14 @@ pxa_osmr0_set_mode(enum clock_event_mode mode, struct clock_event_device *dev)
 		break;
 
 	case CLOCK_EVT_MODE_RESUME:
+	case CLOCK_EVT_MODE_PERIODIC:
 		break;
 	}
 }
 
 static struct clock_event_device ckevt_pxa_osmr0 = {
 	.name		= "osmr0",
-	.features	= CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
+	.features	= CLOCK_EVT_FEAT_ONESHOT,
 	.shift		= 32,
 	.rating		= 200,
 	.cpumask	= CPU_MASK_CPU0,
-- 
cgit v1.2.3-59-g8ed1b


From 4ae7806f8b4bf9a1e74c82f3bd4e91d59bd3d697 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Mon, 12 Nov 2007 22:48:12 +0000
Subject: [ARM] pxa: Don't wind OSCR backwards over suspend/resume

OSCR is supposed to monotonically increment; however restoring it
to a time prior to OSMR0 may result in it being wound backwards.
Instead, if OSMR0 is within the minimum expiry time, wind OSMR0
forwards.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/time.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c
index 3c4abbf31803..ac0bbad35238 100644
--- a/arch/arm/mach-pxa/time.c
+++ b/arch/arm/mach-pxa/time.c
@@ -181,7 +181,7 @@ static void __init pxa_timer_init(void)
 }
 
 #ifdef CONFIG_PM
-static unsigned long osmr[4], oier;
+static unsigned long osmr[4], oier, oscr;
 
 static void pxa_timer_suspend(void)
 {
@@ -190,23 +190,26 @@ static void pxa_timer_suspend(void)
 	osmr[2] = OSMR2;
 	osmr[3] = OSMR3;
 	oier = OIER;
+	oscr = OSCR;
 }
 
 static void pxa_timer_resume(void)
 {
+	/*
+	 * Ensure that we have at least MIN_OSCR_DELTA between match
+	 * register 0 and the OSCR, to guarantee that we will receive
+	 * the one-shot timer interrupt.  We adjust OSMR0 in preference
+	 * to OSCR to guarantee that OSCR is monotonically incrementing.
+	 */
+	if (osmr[0] - oscr < MIN_OSCR_DELTA)
+		osmr[0] += MIN_OSCR_DELTA;
+
 	OSMR0 = osmr[0];
 	OSMR1 = osmr[1];
 	OSMR2 = osmr[2];
 	OSMR3 = osmr[3];
 	OIER = oier;
-
-	/*
-	 * OSCR0 is the system timer, which has to increase
-	 * monotonically until it rolls over in hardware.  The value
-	 * (OSMR0 - LATCH) is OSCR0 at the most recent system tick,
-	 * which is a handy value to restore to OSCR0.
-	 */
-	OSCR = OSMR0 - LATCH;
+	OSCR = oscr;
 }
 #else
 #define pxa_timer_suspend NULL
-- 
cgit v1.2.3-59-g8ed1b


From d2b82dded8c45daeaad332459222034a3fabd227 Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Mon, 10 Dec 2007 17:51:29 +0800
Subject: [ARM] pxa: define SSP platform devices for pxa2xx/pxa3xx

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/devices.h |   8 ++
 arch/arm/mach-pxa/generic.c | 277 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 285 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/devices.h b/arch/arm/mach-pxa/devices.h
index 51162a7dba07..e78b48f62b36 100644
--- a/arch/arm/mach-pxa/devices.h
+++ b/arch/arm/mach-pxa/devices.h
@@ -13,4 +13,12 @@ extern struct platform_device pxa_device_rtc;
 extern struct platform_device pxa27x_device_i2c_power;
 extern struct platform_device pxa27x_device_ohci;
 
+extern struct platform_device pxa25x_device_ssp;
+extern struct platform_device pxa25x_device_nssp;
+extern struct platform_device pxa25x_device_assp;
+extern struct platform_device pxa27x_device_ssp1;
+extern struct platform_device pxa27x_device_ssp2;
+extern struct platform_device pxa27x_device_ssp3;
+extern struct platform_device pxa3xx_device_ssp4;
+
 void __init pxa_register_device(struct platform_device *dev, void *data);
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
index 3d863c919e8b..8bb70e70131e 100644
--- a/arch/arm/mach-pxa/generic.c
+++ b/arch/arm/mach-pxa/generic.c
@@ -24,6 +24,7 @@
 #include <linux/ioport.h>
 #include <linux/pm.h>
 #include <linux/string.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>
@@ -487,3 +488,279 @@ struct platform_device pxa_device_rtc = {
 	.name		= "sa1100-rtc",
 	.id		= -1,
 };
+
+#ifdef CONFIG_PXA25x
+
+static u64 pxa25x_ssp_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa25x_resource_ssp[] = {
+	[0] = {
+		.start	= 0x41000000,
+		.end	= 0x4100001f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_SSP,
+		.end	= IRQ_SSP,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 13,
+		.end	= 13,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 14,
+		.end	= 14,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa25x_device_ssp = {
+	.name		= "pxa25x-ssp",
+	.id		= 0,
+	.dev		= {
+		.dma_mask = &pxa25x_ssp_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa25x_resource_ssp,
+	.num_resources	= ARRAY_SIZE(pxa25x_resource_ssp),
+};
+
+static u64 pxa25x_nssp_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa25x_resource_nssp[] = {
+	[0] = {
+		.start	= 0x41400000,
+		.end	= 0x4140002f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_NSSP,
+		.end	= IRQ_NSSP,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 15,
+		.end	= 15,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 16,
+		.end	= 16,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa25x_device_nssp = {
+	.name		= "pxa25x-nssp",
+	.id		= 1,
+	.dev		= {
+		.dma_mask = &pxa25x_nssp_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa25x_resource_nssp,
+	.num_resources	= ARRAY_SIZE(pxa25x_resource_nssp),
+};
+
+static u64 pxa25x_assp_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa25x_resource_assp[] = {
+	[0] = {
+		.start	= 0x41500000,
+		.end	= 0x4150002f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_ASSP,
+		.end	= IRQ_ASSP,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 23,
+		.end	= 23,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 24,
+		.end	= 24,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa25x_device_assp = {
+	/* ASSP is basically equivalent to NSSP */
+	.name		= "pxa25x-nssp",
+	.id		= 2,
+	.dev		= {
+		.dma_mask = &pxa25x_assp_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa25x_resource_assp,
+	.num_resources	= ARRAY_SIZE(pxa25x_resource_assp),
+};
+#endif /* CONFIG_PXA25x */
+
+#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
+
+static u64 pxa27x_ssp1_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa27x_resource_ssp1[] = {
+	[0] = {
+		.start	= 0x41000000,
+		.end	= 0x4100003f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_SSP,
+		.end	= IRQ_SSP,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 13,
+		.end	= 13,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 14,
+		.end	= 14,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa27x_device_ssp1 = {
+	.name		= "pxa27x-ssp",
+	.id		= 0,
+	.dev		= {
+		.dma_mask = &pxa27x_ssp1_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa27x_resource_ssp1,
+	.num_resources	= ARRAY_SIZE(pxa27x_resource_ssp1),
+};
+
+static u64 pxa27x_ssp2_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa27x_resource_ssp2[] = {
+	[0] = {
+		.start	= 0x41700000,
+		.end	= 0x4170003f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_SSP2,
+		.end	= IRQ_SSP2,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 15,
+		.end	= 15,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 16,
+		.end	= 16,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa27x_device_ssp2 = {
+	.name		= "pxa27x-ssp",
+	.id		= 1,
+	.dev		= {
+		.dma_mask = &pxa27x_ssp2_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa27x_resource_ssp2,
+	.num_resources	= ARRAY_SIZE(pxa27x_resource_ssp2),
+};
+
+static u64 pxa27x_ssp3_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa27x_resource_ssp3[] = {
+	[0] = {
+		.start	= 0x41900000,
+		.end	= 0x4190003f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_SSP3,
+		.end	= IRQ_SSP3,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 66,
+		.end	= 66,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 67,
+		.end	= 67,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa27x_device_ssp3 = {
+	.name		= "pxa27x-ssp",
+	.id		= 2,
+	.dev		= {
+		.dma_mask = &pxa27x_ssp3_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa27x_resource_ssp3,
+	.num_resources	= ARRAY_SIZE(pxa27x_resource_ssp3),
+};
+#endif /* CONFIG_PXA27x || CONFIG_PXA3xx */
+
+#ifdef CONFIG_PXA3xx
+static u64 pxa3xx_ssp4_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa3xx_resource_ssp4[] = {
+	[0] = {
+		.start	= 0x41a00000,
+		.end	= 0x41a0003f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_SSP4,
+		.end	= IRQ_SSP4,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 2,
+		.end	= 2,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 3,
+		.end	= 3,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa3xx_device_ssp4 = {
+	/* PXA3xx SSP is basically equivalent to PXA27x */
+	.name		= "pxa27x-ssp",
+	.id		= 3,
+	.dev		= {
+		.dma_mask = &pxa3xx_ssp4_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa3xx_resource_ssp4,
+	.num_resources	= ARRAY_SIZE(pxa3xx_resource_ssp4),
+};
+#endif /* CONFIG_PXA3xx */
-- 
cgit v1.2.3-59-g8ed1b


From d8e0db1111b51558456466f66c9115d71b68e8b9 Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Mon, 10 Dec 2007 17:54:36 +0800
Subject: [ARM] pxa: add ssp devices and clk support for pxa25x/pxa27x/pxa3xx

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/pxa25x.c | 10 ++++++++--
 arch/arm/mach-pxa/pxa27x.c | 10 +++++++---
 arch/arm/mach-pxa/pxa3xx.c |  9 +++++++++
 3 files changed, 24 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index d9ee0d9b36df..c6ea0ed69270 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -120,12 +120,15 @@ static struct clk pxa25x_clks[] = {
 	INIT_CKEN("UDCCLK", USB, 47923000, 5, &pxa_device_udc.dev),
 	INIT_CKEN("MMCCLK", MMC, 19169000, 0, &pxa_device_mci.dev),
 	INIT_CKEN("I2CCLK", I2C, 31949000, 0, &pxa_device_i2c.dev),
+
+	INIT_CKEN("SSPCLK",  SSP, 3686400, 0, &pxa25x_device_ssp.dev),
+	INIT_CKEN("SSPCLK", NSSP, 3686400, 0, &pxa25x_device_nssp.dev),
+	INIT_CKEN("SSPCLK", ASSP, 3686400, 0, &pxa25x_device_assp.dev),
+
 	/*
 	INIT_CKEN("PWMCLK",  PWM0, 3686400,  0, NULL),
 	INIT_CKEN("PWMCLK",  PWM0, 3686400,  0, NULL),
-	INIT_CKEN("SSPCLK",  SSP,  3686400,  0, NULL),
 	INIT_CKEN("I2SCLK",  I2S,  14745600, 0, NULL),
-	INIT_CKEN("NSSPCLK", NSSP, 3686400,  0, NULL),
 	*/
 	INIT_CKEN("FICPCLK", FICP, 47923000, 0, NULL),
 };
@@ -293,6 +296,9 @@ static struct platform_device *pxa25x_devices[] __initdata = {
 	&pxa_device_stuart,
 	&pxa_device_i2s,
 	&pxa_device_rtc,
+	&pxa25x_device_ssp,
+	&pxa25x_device_nssp,
+	&pxa25x_device_assp,
 };
 
 static int __init pxa25x_init(void)
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index e7151dba6682..12dd2b0629bf 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -150,11 +150,12 @@ static struct clk pxa27x_clks[] = {
 	INIT_CKEN("I2CCLK", PWRI2C, 13000000, 0, &pxa27x_device_i2c_power.dev),
 	INIT_CKEN("KBDCLK", KEYPAD, 32768, 0, NULL),
 
+	INIT_CKEN("SSPCLK", SSP1, 13000000, 0, &pxa27x_device_ssp1.dev),
+	INIT_CKEN("SSPCLK", SSP2, 13000000, 0, &pxa27x_device_ssp2.dev),
+	INIT_CKEN("SSPCLK", SSP3, 13000000, 0, &pxa27x_device_ssp3.dev),
+
 	/*
 	INIT_CKEN("PWMCLK",  PWM0, 13000000, 0, NULL),
-	INIT_CKEN("SSPCLK",  SSP1, 13000000, 0, NULL),
-	INIT_CKEN("SSPCLK",  SSP2, 13000000, 0, NULL),
-	INIT_CKEN("SSPCLK",  SSP3, 13000000, 0, NULL),
 	INIT_CKEN("MSLCLK",  MSL,  48000000, 0, NULL),
 	INIT_CKEN("USIMCLK", USIM, 48000000, 0, NULL),
 	INIT_CKEN("MSTKCLK", MEMSTK, 19500000, 0, NULL),
@@ -431,6 +432,9 @@ static struct platform_device *devices[] __initdata = {
 	&pxa_device_i2s,
 	&pxa_device_rtc,
 	&pxa27x_device_i2c_power,
+	&pxa27x_device_ssp1,
+	&pxa27x_device_ssp2,
+	&pxa27x_device_ssp3,
 };
 
 static int __init pxa27x_init(void)
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 37fbc4face09..c0483c3261d0 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -189,6 +189,11 @@ static struct clk pxa3xx_clks[] = {
 
 	PXA3xx_CKEN("I2CCLK", I2C,  32842000, 0, &pxa_device_i2c.dev),
 	PXA3xx_CKEN("UDCCLK", UDC,  48000000, 5, &pxa_device_udc.dev),
+
+	PXA3xx_CKEN("SSPCLK", SSP1, 13000000, 0, &pxa27x_device_ssp1.dev),
+	PXA3xx_CKEN("SSPCLK", SSP2, 13000000, 0, &pxa27x_device_ssp2.dev),
+	PXA3xx_CKEN("SSPCLK", SSP3, 13000000, 0, &pxa27x_device_ssp3.dev),
+	PXA3xx_CKEN("SSPCLK", SSP4, 13000000, 0, &pxa3xx_device_ssp4.dev),
 };
 
 void __init pxa3xx_init_irq(void)
@@ -215,6 +220,10 @@ static struct platform_device *devices[] __initdata = {
 	&pxa_device_stuart,
 	&pxa_device_i2s,
 	&pxa_device_rtc,
+	&pxa27x_device_ssp1,
+	&pxa27x_device_ssp2,
+	&pxa27x_device_ssp3,
+	&pxa3xx_device_ssp4,
 };
 
 static int __init pxa3xx_init(void)
-- 
cgit v1.2.3-59-g8ed1b


From 88286450462216ca9b5c67c2175d75a5aebd5d0f Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Thu, 6 Dec 2007 17:56:42 +0800
Subject: [ARM] pxa: define "struct ssp_device" and add
 ssp_request()/ssp_free()

1. define "struct ssp_device" for SSP information, which is requested
   and released by function ssp_request()/ssp_free()

2. modify the ssp_init() and ssp_exit() to use the interface

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/ssp.c        | 296 +++++++++++++++++++++++++++++++++--------
 include/asm-arm/arch-pxa/ssp.h |  36 ++++-
 2 files changed, 273 insertions(+), 59 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c
index 422afee88169..be6fee78f439 100644
--- a/arch/arm/mach-pxa/ssp.c
+++ b/arch/arm/mach-pxa/ssp.c
@@ -32,39 +32,18 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/mutex.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/hardware.h>
 #include <asm/arch/ssp.h>
 #include <asm/arch/pxa-regs.h>
 
-#define PXA_SSP_PORTS 	3
-
 #define TIMEOUT 100000
 
-struct ssp_info_ {
-	int irq;
-	u32 clock;
-};
-
-/*
- * SSP port clock and IRQ settings
- */
-static const struct ssp_info_ ssp_info[PXA_SSP_PORTS] = {
-#if defined (CONFIG_PXA27x)
-	{IRQ_SSP,	CKEN_SSP1},
-	{IRQ_SSP2,	CKEN_SSP2},
-	{IRQ_SSP3,	CKEN_SSP3},
-#else
-	{IRQ_SSP,	CKEN_SSP},
-	{IRQ_NSSP,	CKEN_NSSP},
-	{IRQ_ASSP,	CKEN_ASSP},
-#endif
-};
-
-static DEFINE_MUTEX(mutex);
-static int use_count[PXA_SSP_PORTS] = {0, 0, 0};
-
 static irqreturn_t ssp_interrupt(int irq, void *dev_id)
 {
 	struct ssp_dev *dev = (struct ssp_dev*) dev_id;
@@ -256,44 +235,32 @@ int ssp_config(struct ssp_dev *dev, u32 mode, u32 flags, u32 psp_flags, u32 spee
  */
 int ssp_init(struct ssp_dev *dev, u32 port, u32 init_flags)
 {
+	struct ssp_device *ssp;
 	int ret;
 
-	if (port > PXA_SSP_PORTS || port == 0)
+	ssp = ssp_request(port, "SSP");
+	if (ssp == NULL)
 		return -ENODEV;
 
-	mutex_lock(&mutex);
-	if (use_count[port - 1]) {
-		mutex_unlock(&mutex);
-		return -EBUSY;
-	}
-	use_count[port - 1]++;
-
-	if (!request_mem_region(__PREG(SSCR0_P(port)), 0x2c, "SSP")) {
-		use_count[port - 1]--;
-		mutex_unlock(&mutex);
-		return -EBUSY;
-	}
+	dev->ssp = ssp;
 	dev->port = port;
 
 	/* do we need to get irq */
 	if (!(init_flags & SSP_NO_IRQ)) {
-		ret = request_irq(ssp_info[port-1].irq, ssp_interrupt,
+		ret = request_irq(ssp->irq, ssp_interrupt,
 				0, "SSP", dev);
 	    	if (ret)
 			goto out_region;
-	    	dev->irq = ssp_info[port-1].irq;
+		dev->irq = ssp->irq;
 	} else
 		dev->irq = 0;
 
 	/* turn on SSP port clock */
-	pxa_set_cken(ssp_info[port-1].clock, 1);
-	mutex_unlock(&mutex);
+	clk_enable(ssp->clk);
 	return 0;
 
 out_region:
-	release_mem_region(__PREG(SSCR0_P(port)), 0x2c);
-	use_count[port - 1]--;
-	mutex_unlock(&mutex);
+	ssp_free(ssp);
 	return ret;
 }
 
@@ -304,22 +271,239 @@ out_region:
  */
 void ssp_exit(struct ssp_dev *dev)
 {
-	mutex_lock(&mutex);
+	struct ssp_device *ssp = dev->ssp;
+
 	SSCR0_P(dev->port) &= ~SSCR0_SSE;
+	free_irq(dev->irq, dev);
+	clk_disable(ssp->clk);
+	ssp_free(ssp);
+}
+
+static DEFINE_MUTEX(ssp_lock);
+static LIST_HEAD(ssp_list);
+
+struct ssp_device *ssp_request(int port, const char *label)
+{
+	struct ssp_device *ssp = NULL;
+
+	mutex_lock(&ssp_lock);
 
-    	if (dev->port > PXA_SSP_PORTS || dev->port == 0) {
-		printk(KERN_WARNING "SSP: tried to close invalid port\n");
-		mutex_unlock(&mutex);
-		return;
+	list_for_each_entry(ssp, &ssp_list, node) {
+		if (ssp->port_id == port && ssp->use_count == 0) {
+			ssp->use_count++;
+			ssp->label = label;
+			break;
+		}
 	}
 
-	pxa_set_cken(ssp_info[dev->port-1].clock, 0);
-	if (dev->irq)
-		free_irq(dev->irq, dev);
-	release_mem_region(__PREG(SSCR0_P(dev->port)), 0x2c);
-	use_count[dev->port - 1]--;
-	mutex_unlock(&mutex);
+	mutex_unlock(&ssp_lock);
+
+	if (ssp->port_id != port)
+		return NULL;
+
+	return ssp;
+}
+EXPORT_SYMBOL(ssp_request);
+
+void ssp_free(struct ssp_device *ssp)
+{
+	mutex_lock(&ssp_lock);
+	if (ssp->use_count) {
+		ssp->use_count--;
+		ssp->label = NULL;
+	} else
+		dev_err(&ssp->pdev->dev, "device already free\n");
+	mutex_unlock(&ssp_lock);
 }
+EXPORT_SYMBOL(ssp_free);
+
+static int __devinit ssp_probe(struct platform_device *pdev, int type)
+{
+	struct resource *res;
+	struct ssp_device *ssp;
+	int ret = 0;
+
+	ssp = kzalloc(sizeof(struct ssp_device), GFP_KERNEL);
+	if (ssp == NULL) {
+		dev_err(&pdev->dev, "failed to allocate memory");
+		return -ENOMEM;
+	}
+
+	ssp->clk = clk_get(&pdev->dev, "SSPCLK");
+	if (IS_ERR(ssp->clk)) {
+		ret = PTR_ERR(ssp->clk);
+		goto err_free;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "no memory resource defined\n");
+		ret = -ENODEV;
+		goto err_free_clk;
+	}
+
+	res = request_mem_region(res->start, res->end - res->start + 1,
+			pdev->name);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "failed to request memory resource\n");
+		ret = -EBUSY;
+		goto err_free_clk;
+	}
+
+	ssp->phys_base = res->start;
+
+	ssp->mmio_base = ioremap(res->start, res->end - res->start + 1);
+	if (ssp->mmio_base == NULL) {
+		dev_err(&pdev->dev, "failed to ioremap() registers\n");
+		ret = -ENODEV;
+		goto err_free_mem;
+	}
+
+	ssp->irq = platform_get_irq(pdev, 0);
+	if (ssp->irq < 0) {
+		dev_err(&pdev->dev, "no IRQ resource defined\n");
+		ret = -ENODEV;
+		goto err_free_io;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "no SSP RX DRCMR defined\n");
+		ret = -ENODEV;
+		goto err_free_io;
+	}
+	ssp->drcmr_rx = res->start;
+
+	res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "no SSP TX DRCMR defined\n");
+		ret = -ENODEV;
+		goto err_free_io;
+	}
+	ssp->drcmr_tx = res->start;
+
+	/* PXA2xx/3xx SSP ports starts from 1 and the internal pdev->id
+	 * starts from 0, do a translation here
+	 */
+	ssp->port_id = pdev->id + 1;
+	ssp->use_count = 0;
+	ssp->type = type;
+
+	mutex_lock(&ssp_lock);
+	list_add(&ssp->node, &ssp_list);
+	mutex_unlock(&ssp_lock);
+
+	platform_set_drvdata(pdev, ssp);
+	return 0;
+
+err_free_io:
+	iounmap(ssp->mmio_base);
+err_free_mem:
+	release_mem_region(res->start, res->end - res->start + 1);
+err_free_clk:
+	clk_put(ssp->clk);
+err_free:
+	kfree(ssp);
+	return ret;
+}
+
+static int __devexit ssp_remove(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct ssp_device *ssp;
+
+	ssp = platform_get_drvdata(pdev);
+	if (ssp == NULL)
+		return -ENODEV;
+
+	iounmap(ssp->mmio_base);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	release_mem_region(res->start, res->end - res->start + 1);
+
+	clk_put(ssp->clk);
+
+	mutex_lock(&ssp_lock);
+	list_del(&ssp->node);
+	mutex_unlock(&ssp_lock);
+
+	kfree(ssp);
+	return 0;
+}
+
+static int __devinit pxa25x_ssp_probe(struct platform_device *pdev)
+{
+	return ssp_probe(pdev, PXA25x_SSP);
+}
+
+static int __devinit pxa25x_nssp_probe(struct platform_device *pdev)
+{
+	return ssp_probe(pdev, PXA25x_NSSP);
+}
+
+static int __devinit pxa27x_ssp_probe(struct platform_device *pdev)
+{
+	return ssp_probe(pdev, PXA27x_SSP);
+}
+
+static struct platform_driver pxa25x_ssp_driver = {
+	.driver		= {
+		.name	= "pxa25x-ssp",
+	},
+	.probe		= pxa25x_ssp_probe,
+	.remove		= __devexit_p(ssp_remove),
+};
+
+static struct platform_driver pxa25x_nssp_driver = {
+	.driver		= {
+		.name	= "pxa25x-nssp",
+	},
+	.probe		= pxa25x_nssp_probe,
+	.remove		= __devexit_p(ssp_remove),
+};
+
+static struct platform_driver pxa27x_ssp_driver = {
+	.driver		= {
+		.name	= "pxa27x-ssp",
+	},
+	.probe		= pxa27x_ssp_probe,
+	.remove		= __devexit_p(ssp_remove),
+};
+
+static int __init pxa_ssp_init(void)
+{
+	int ret = 0;
+
+	ret = platform_driver_register(&pxa25x_ssp_driver);
+	if (ret) {
+		printk(KERN_ERR "failed to register pxa25x_ssp_driver");
+		return ret;
+	}
+
+	ret = platform_driver_register(&pxa25x_nssp_driver);
+	if (ret) {
+		printk(KERN_ERR "failed to register pxa25x_nssp_driver");
+		return ret;
+	}
+
+	ret = platform_driver_register(&pxa27x_ssp_driver);
+	if (ret) {
+		printk(KERN_ERR "failed to register pxa27x_ssp_driver");
+		return ret;
+	}
+
+	return ret;
+}
+
+static void __exit pxa_ssp_exit(void)
+{
+	platform_driver_unregister(&pxa25x_ssp_driver);
+	platform_driver_unregister(&pxa25x_nssp_driver);
+	platform_driver_unregister(&pxa27x_ssp_driver);
+}
+
+module_init(pxa_ssp_init);
+module_exit(pxa_ssp_exit);
 
 EXPORT_SYMBOL(ssp_write_word);
 EXPORT_SYMBOL(ssp_read_word);
diff --git a/include/asm-arm/arch-pxa/ssp.h b/include/asm-arm/arch-pxa/ssp.h
index ea200551a75f..a012882c9ee6 100644
--- a/include/asm-arm/arch-pxa/ssp.h
+++ b/include/asm-arm/arch-pxa/ssp.h
@@ -13,10 +13,37 @@
  *       PXA255     SSP, NSSP
  *       PXA26x     SSP, NSSP, ASSP
  *       PXA27x     SSP1, SSP2, SSP3
+ *       PXA3xx     SSP1, SSP2, SSP3, SSP4
  */
 
-#ifndef SSP_H
-#define SSP_H
+#ifndef __ASM_ARCH_SSP_H
+#define __ASM_ARCH_SSP_H
+
+#include <linux/list.h>
+
+enum pxa_ssp_type {
+	SSP_UNDEFINED = 0,
+	PXA25x_SSP,  /* pxa 210, 250, 255, 26x */
+	PXA25x_NSSP, /* pxa 255, 26x (including ASSP) */
+	PXA27x_SSP,
+};
+
+struct ssp_device {
+	struct platform_device *pdev;
+	struct list_head	node;
+
+	struct clk	*clk;
+	void __iomem	*mmio_base;
+	unsigned long	phys_base;
+
+	const char	*label;
+	int		port_id;
+	int		type;
+	int		use_count;
+	int		irq;
+	int		drcmr_rx;
+	int		drcmr_tx;
+};
 
 /*
  * SSP initialisation flags
@@ -31,6 +58,7 @@ struct ssp_state {
 };
 
 struct ssp_dev {
+	struct ssp_device *ssp;
 	u32 port;
 	u32 mode;
 	u32 flags;
@@ -50,4 +78,6 @@ int ssp_init(struct ssp_dev *dev, u32 port, u32 init_flags);
 int ssp_config(struct ssp_dev *dev, u32 mode, u32 flags, u32 psp_flags, u32 speed);
 void ssp_exit(struct ssp_dev *dev);
 
-#endif
+struct ssp_device *ssp_request(int port, const char *label);
+void ssp_free(struct ssp_device *);
+#endif /* __ASM_ARCH_SSP_H */
-- 
cgit v1.2.3-59-g8ed1b


From 0aea1fd565857f002e873a506d67c92ff913f1af Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Wed, 21 Nov 2007 16:57:12 +0800
Subject: [ARM] pxa: move SSP register definitions from pxa-regs.h to
 regs-ssp.h

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/corgi_ssp.c       |   1 +
 arch/arm/mach-pxa/ssp.c             |   1 +
 drivers/spi/pxa2xx_spi.c            |   1 +
 include/asm-arm/arch-pxa/pxa-regs.h | 168 +---------------------------------
 include/asm-arm/arch-pxa/regs-ssp.h | 173 ++++++++++++++++++++++++++++++++++++
 5 files changed, 177 insertions(+), 167 deletions(-)
 create mode 100644 include/asm-arm/arch-pxa/regs-ssp.h

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/corgi_ssp.c b/arch/arm/mach-pxa/corgi_ssp.c
index 40dea3d5142b..efba65edcd51 100644
--- a/arch/arm/mach-pxa/corgi_ssp.c
+++ b/arch/arm/mach-pxa/corgi_ssp.c
@@ -21,6 +21,7 @@
 
 #include <asm/arch/ssp.h>
 #include <asm/arch/pxa-regs.h>
+#include <asm/arch/regs-ssp.h>
 #include "sharpsl.h"
 
 static DEFINE_SPINLOCK(corgi_ssp_lock);
diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c
index be6fee78f439..0225ee016f2d 100644
--- a/arch/arm/mach-pxa/ssp.c
+++ b/arch/arm/mach-pxa/ssp.c
@@ -41,6 +41,7 @@
 #include <asm/hardware.h>
 #include <asm/arch/ssp.h>
 #include <asm/arch/pxa-regs.h>
+#include <asm/arch/regs-ssp.h>
 
 #define TIMEOUT 100000
 
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index 1c2ab541d37d..0ac0f65f69a1 100644
--- a/drivers/spi/pxa2xx_spi.c
+++ b/drivers/spi/pxa2xx_spi.c
@@ -36,6 +36,7 @@
 
 #include <asm/arch/hardware.h>
 #include <asm/arch/pxa-regs.h>
+#include <asm/arch/regs-ssp.h>
 #include <asm/arch/pxa2xx_spi.h>
 
 MODULE_AUTHOR("Stephen Street");
diff --git a/include/asm-arm/arch-pxa/pxa-regs.h b/include/asm-arm/arch-pxa/pxa-regs.h
index 1bd398da07da..dd014712dfa5 100644
--- a/include/asm-arm/arch-pxa/pxa-regs.h
+++ b/include/asm-arm/arch-pxa/pxa-regs.h
@@ -1597,176 +1597,10 @@
 #define PWER_GPIO15	PWER_GPIO (15)	/* GPIO [15] wake-up enable        */
 #define PWER_RTC	0x80000000	/* RTC alarm wake-up enable        */
 
-
 /*
- * SSP Serial Port Registers
- * PXA250, PXA255, PXA26x and PXA27x SSP controllers are all slightly different.
- * PXA255, PXA26x and PXA27x have extra ports, registers and bits.
+ * SSP Serial Port Registers - see include/asm-arm/arch-pxa/regs-ssp.h
  */
 
- /* Common PXA2xx bits first */
-#define SSCR0_DSS	(0x0000000f)	/* Data Size Select (mask) */
-#define SSCR0_DataSize(x)  ((x) - 1)	/* Data Size Select [4..16] */
-#define SSCR0_FRF	(0x00000030)	/* FRame Format (mask) */
-#define SSCR0_Motorola	(0x0 << 4)	/* Motorola's Serial Peripheral Interface (SPI) */
-#define SSCR0_TI	(0x1 << 4)	/* Texas Instruments' Synchronous Serial Protocol (SSP) */
-#define SSCR0_National	(0x2 << 4)	/* National Microwire */
-#define SSCR0_ECS	(1 << 6)	/* External clock select */
-#define SSCR0_SSE	(1 << 7)	/* Synchronous Serial Port Enable */
-#if defined(CONFIG_PXA25x)
-#define SSCR0_SCR	(0x0000ff00)	/* Serial Clock Rate (mask) */
-#define SSCR0_SerClkDiv(x) ((((x) - 2)/2) << 8) /* Divisor [2..512] */
-#elif defined(CONFIG_PXA27x)
-#define SSCR0_SCR	(0x000fff00)	/* Serial Clock Rate (mask) */
-#define SSCR0_SerClkDiv(x) (((x) - 1) << 8) /* Divisor [1..4096] */
-#define SSCR0_EDSS	(1 << 20)	/* Extended data size select */
-#define SSCR0_NCS	(1 << 21)	/* Network clock select */
-#define SSCR0_RIM	(1 << 22)	/* Receive FIFO overrrun interrupt mask */
-#define SSCR0_TUM	(1 << 23)	/* Transmit FIFO underrun interrupt mask */
-#define SSCR0_FRDC	(0x07000000)	/* Frame rate divider control (mask) */
-#define SSCR0_SlotsPerFrm(x) (((x) - 1) << 24)	/* Time slots per frame [1..8] */
-#define SSCR0_ADC	(1 << 30)	/* Audio clock select */
-#define SSCR0_MOD	(1 << 31)	/* Mode (normal or network) */
-#endif
-
-#define SSCR1_RIE	(1 << 0)	/* Receive FIFO Interrupt Enable */
-#define SSCR1_TIE	(1 << 1)	/* Transmit FIFO Interrupt Enable */
-#define SSCR1_LBM	(1 << 2)	/* Loop-Back Mode */
-#define SSCR1_SPO	(1 << 3)	/* Motorola SPI SSPSCLK polarity setting */
-#define SSCR1_SPH	(1 << 4)	/* Motorola SPI SSPSCLK phase setting */
-#define SSCR1_MWDS	(1 << 5)	/* Microwire Transmit Data Size */
-#define SSCR1_TFT	(0x000003c0)	/* Transmit FIFO Threshold (mask) */
-#define SSCR1_TxTresh(x) (((x) - 1) << 6) /* level [1..16] */
-#define SSCR1_RFT	(0x00003c00)	/* Receive FIFO Threshold (mask) */
-#define SSCR1_RxTresh(x) (((x) - 1) << 10) /* level [1..16] */
-
-#define SSSR_TNF	(1 << 2)	/* Transmit FIFO Not Full */
-#define SSSR_RNE	(1 << 3)	/* Receive FIFO Not Empty */
-#define SSSR_BSY	(1 << 4)	/* SSP Busy */
-#define SSSR_TFS	(1 << 5)	/* Transmit FIFO Service Request */
-#define SSSR_RFS	(1 << 6)	/* Receive FIFO Service Request */
-#define SSSR_ROR	(1 << 7)	/* Receive FIFO Overrun */
-
-#define SSCR0_TIM		(1 << 23)	/* Transmit FIFO Under Run Interrupt Mask */
-#define SSCR0_RIM		(1 << 22)	/* Receive FIFO Over Run interrupt Mask */
-#define SSCR0_NCS		(1 << 21)	/* Network Clock Select */
-#define SSCR0_EDSS		(1 << 20)	/* Extended Data Size Select */
-
-/* extra bits in PXA255, PXA26x and PXA27x SSP ports */
-#define SSCR0_TISSP		(1 << 4)	/* TI Sync Serial Protocol */
-#define SSCR0_PSP		(3 << 4)	/* PSP - Programmable Serial Protocol */
-#define SSCR1_TTELP		(1 << 31)	/* TXD Tristate Enable Last Phase */
-#define SSCR1_TTE		(1 << 30)	/* TXD Tristate Enable */
-#define SSCR1_EBCEI		(1 << 29)	/* Enable Bit Count Error interrupt */
-#define SSCR1_SCFR		(1 << 28)	/* Slave Clock free Running */
-#define SSCR1_ECRA		(1 << 27)	/* Enable Clock Request A */
-#define SSCR1_ECRB		(1 << 26)	/* Enable Clock request B */
-#define SSCR1_SCLKDIR	(1 << 25)	/* Serial Bit Rate Clock Direction */
-#define SSCR1_SFRMDIR	(1 << 24)	/* Frame Direction */
-#define SSCR1_RWOT		(1 << 23)	/* Receive Without Transmit */
-#define SSCR1_TRAIL		(1 << 22)	/* Trailing Byte */
-#define SSCR1_TSRE		(1 << 21)	/* Transmit Service Request Enable */
-#define SSCR1_RSRE		(1 << 20)	/* Receive Service Request Enable */
-#define SSCR1_TINTE		(1 << 19)	/* Receiver Time-out Interrupt enable */
-#define SSCR1_PINTE		(1 << 18)	/* Peripheral Trailing Byte Interupt Enable */
-#define SSCR1_STRF		(1 << 15)	/* Select FIFO or EFWR */
-#define SSCR1_EFWR		(1 << 14)	/* Enable FIFO Write/Read */
-
-#define SSSR_BCE		(1 << 23)	/* Bit Count Error */
-#define SSSR_CSS		(1 << 22)	/* Clock Synchronisation Status */
-#define SSSR_TUR		(1 << 21)	/* Transmit FIFO Under Run */
-#define SSSR_EOC		(1 << 20)	/* End Of Chain */
-#define SSSR_TINT		(1 << 19)	/* Receiver Time-out Interrupt */
-#define SSSR_PINT		(1 << 18)	/* Peripheral Trailing Byte Interrupt */
-
-#define SSPSP_FSRT		(1 << 25)	/* Frame Sync Relative Timing */
-#define SSPSP_DMYSTOP(x)	((x) << 23)	/* Dummy Stop */
-#define SSPSP_SFRMWDTH(x)	((x) << 16)	/* Serial Frame Width */
-#define SSPSP_SFRMDLY(x)	((x) << 9)	/* Serial Frame Delay */
-#define SSPSP_DMYSTRT(x)	((x) << 7)	/* Dummy Start */
-#define SSPSP_STRTDLY(x)	((x) << 4)	/* Start Delay */
-#define SSPSP_ETDS			(1 << 3)	/* End of Transfer data State */
-#define SSPSP_SFRMP			(1 << 2)	/* Serial Frame Polarity */
-#define SSPSP_SCMODE(x)		((x) << 0)	/* Serial Bit Rate Clock Mode */
-
-#define SSACD_SCDB		(1 << 3)	/* SSPSYSCLK Divider Bypass */
-#define SSACD_ACPS(x)		((x) << 4)	/* Audio clock PLL select */
-#define SSACD_ACDS(x)		((x) << 0)	/* Audio clock divider select */
-
-#define SSCR0_P1	__REG(0x41000000)  /* SSP Port 1 Control Register 0 */
-#define SSCR1_P1	__REG(0x41000004)  /* SSP Port 1 Control Register 1 */
-#define SSSR_P1		__REG(0x41000008)  /* SSP Port 1 Status Register */
-#define SSITR_P1	__REG(0x4100000C)  /* SSP Port 1 Interrupt Test Register */
-#define SSDR_P1		__REG(0x41000010)  /* (Write / Read) SSP Port 1 Data Write Register/SSP Data Read Register */
-
-/* Support existing PXA25x drivers */
-#define SSCR0		SSCR0_P1  /* SSP Control Register 0 */
-#define SSCR1		SSCR1_P1  /* SSP Control Register 1 */
-#define SSSR		SSSR_P1	  /* SSP Status Register */
-#define SSITR		SSITR_P1  /* SSP Interrupt Test Register */
-#define SSDR		SSDR_P1	  /* (Write / Read) SSP Data Write Register/SSP Data Read Register */
-
-/* PXA27x ports */
-#if defined (CONFIG_PXA27x)
-#define SSTO_P1		__REG(0x41000028)  /* SSP Port 1 Time Out Register */
-#define SSPSP_P1	__REG(0x4100002C)  /* SSP Port 1 Programmable Serial Protocol */
-#define SSTSA_P1	__REG(0x41000030)  /* SSP Port 1 Tx Timeslot Active */
-#define SSRSA_P1	__REG(0x41000034)  /* SSP Port 1 Rx Timeslot Active */
-#define SSTSS_P1	__REG(0x41000038)  /* SSP Port 1 Timeslot Status */
-#define SSACD_P1	__REG(0x4100003C)  /* SSP Port 1 Audio Clock Divider */
-#define SSCR0_P2	__REG(0x41700000)  /* SSP Port 2 Control Register 0 */
-#define SSCR1_P2	__REG(0x41700004)  /* SSP Port 2 Control Register 1 */
-#define SSSR_P2		__REG(0x41700008)  /* SSP Port 2 Status Register */
-#define SSITR_P2	__REG(0x4170000C)  /* SSP Port 2 Interrupt Test Register */
-#define SSDR_P2		__REG(0x41700010)  /* (Write / Read) SSP Port 2 Data Write Register/SSP Data Read Register */
-#define SSTO_P2		__REG(0x41700028)  /* SSP Port 2 Time Out Register */
-#define SSPSP_P2	__REG(0x4170002C)  /* SSP Port 2 Programmable Serial Protocol */
-#define SSTSA_P2	__REG(0x41700030)  /* SSP Port 2 Tx Timeslot Active */
-#define SSRSA_P2	__REG(0x41700034)  /* SSP Port 2 Rx Timeslot Active */
-#define SSTSS_P2	__REG(0x41700038)  /* SSP Port 2 Timeslot Status */
-#define SSACD_P2	__REG(0x4170003C)  /* SSP Port 2 Audio Clock Divider */
-#define SSCR0_P3	__REG(0x41900000)  /* SSP Port 3 Control Register 0 */
-#define SSCR1_P3	__REG(0x41900004)  /* SSP Port 3 Control Register 1 */
-#define SSSR_P3		__REG(0x41900008)  /* SSP Port 3 Status Register */
-#define SSITR_P3	__REG(0x4190000C)  /* SSP Port 3 Interrupt Test Register */
-#define SSDR_P3		__REG(0x41900010)  /* (Write / Read) SSP Port 3 Data Write Register/SSP Data Read Register */
-#define SSTO_P3		__REG(0x41900028)  /* SSP Port 3 Time Out Register */
-#define SSPSP_P3	__REG(0x4190002C)  /* SSP Port 3 Programmable Serial Protocol */
-#define SSTSA_P3	__REG(0x41900030)  /* SSP Port 3 Tx Timeslot Active */
-#define SSRSA_P3	__REG(0x41900034)  /* SSP Port 3 Rx Timeslot Active */
-#define SSTSS_P3	__REG(0x41900038)  /* SSP Port 3 Timeslot Status */
-#define SSACD_P3	__REG(0x4190003C)  /* SSP Port 3 Audio Clock Divider */
-#else /* PXA255 (only port 2) and PXA26x ports*/
-#define SSTO_P1		__REG(0x41000028)  /* SSP Port 1 Time Out Register */
-#define SSPSP_P1	__REG(0x4100002C)  /* SSP Port 1 Programmable Serial Protocol */
-#define SSCR0_P2	__REG(0x41400000)  /* SSP Port 2 Control Register 0 */
-#define SSCR1_P2	__REG(0x41400004)  /* SSP Port 2 Control Register 1 */
-#define SSSR_P2		__REG(0x41400008)  /* SSP Port 2 Status Register */
-#define SSITR_P2	__REG(0x4140000C)  /* SSP Port 2 Interrupt Test Register */
-#define SSDR_P2		__REG(0x41400010)  /* (Write / Read) SSP Port 2 Data Write Register/SSP Data Read Register */
-#define SSTO_P2		__REG(0x41400028)  /* SSP Port 2 Time Out Register */
-#define SSPSP_P2	__REG(0x4140002C)  /* SSP Port 2 Programmable Serial Protocol */
-#define SSCR0_P3	__REG(0x41500000)  /* SSP Port 3 Control Register 0 */
-#define SSCR1_P3	__REG(0x41500004)  /* SSP Port 3 Control Register 1 */
-#define SSSR_P3		__REG(0x41500008)  /* SSP Port 3 Status Register */
-#define SSITR_P3	__REG(0x4150000C)  /* SSP Port 3 Interrupt Test Register */
-#define SSDR_P3		__REG(0x41500010)  /* (Write / Read) SSP Port 3 Data Write Register/SSP Data Read Register */
-#define SSTO_P3		__REG(0x41500028)  /* SSP Port 3 Time Out Register */
-#define SSPSP_P3	__REG(0x4150002C)  /* SSP Port 3 Programmable Serial Protocol */
-#endif
-
-#define SSCR0_P(x) (*(((x) == 1) ? &SSCR0_P1 : ((x) == 2) ? &SSCR0_P2 : ((x) == 3) ? &SSCR0_P3 : NULL))
-#define SSCR1_P(x) (*(((x) == 1) ? &SSCR1_P1 : ((x) == 2) ? &SSCR1_P2 : ((x) == 3) ? &SSCR1_P3 : NULL))
-#define SSSR_P(x) (*(((x) == 1) ? &SSSR_P1 : ((x) == 2) ? &SSSR_P2 : ((x) == 3) ? &SSSR_P3 : NULL))
-#define SSITR_P(x) (*(((x) == 1) ? &SSITR_P1 : ((x) == 2) ? &SSITR_P2 : ((x) == 3) ? &SSITR_P3 : NULL))
-#define SSDR_P(x) (*(((x) == 1) ? &SSDR_P1 : ((x) == 2) ? &SSDR_P2 : ((x) == 3) ? &SSDR_P3 : NULL))
-#define SSTO_P(x) (*(((x) == 1) ? &SSTO_P1 : ((x) == 2) ? &SSTO_P2 : ((x) == 3) ? &SSTO_P3 : NULL))
-#define SSPSP_P(x) (*(((x) == 1) ? &SSPSP_P1 : ((x) == 2) ? &SSPSP_P2 : ((x) == 3) ? &SSPSP_P3 : NULL))
-#define SSTSA_P(x) (*(((x) == 1) ? &SSTSA_P1 : ((x) == 2) ? &SSTSA_P2 : ((x) == 3) ? &SSTSA_P3 : NULL))
-#define SSRSA_P(x) (*(((x) == 1) ? &SSRSA_P1 : ((x) == 2) ? &SSRSA_P2 : ((x) == 3) ? &SSRSA_P3 : NULL))
-#define SSTSS_P(x) (*(((x) == 1) ? &SSTSS_P1 : ((x) == 2) ? &SSTSS_P2 : ((x) == 3) ? &SSTSS_P3 : NULL))
-#define SSACD_P(x) (*(((x) == 1) ? &SSACD_P1 : ((x) == 2) ? &SSACD_P2 : ((x) == 3) ? &SSACD_P3 : NULL))
-
 /*
  * MultiMediaCard (MMC) controller - see drivers/mmc/host/pxamci.h
  */
diff --git a/include/asm-arm/arch-pxa/regs-ssp.h b/include/asm-arm/arch-pxa/regs-ssp.h
new file mode 100644
index 000000000000..687ade109113
--- /dev/null
+++ b/include/asm-arm/arch-pxa/regs-ssp.h
@@ -0,0 +1,173 @@
+#ifndef __ASM_ARCH_REGS_SSP_H
+#define __ASM_ARCH_REGS_SSP_H
+
+/*
+ * SSP Serial Port Registers
+ * PXA250, PXA255, PXA26x and PXA27x SSP controllers are all slightly different.
+ * PXA255, PXA26x and PXA27x have extra ports, registers and bits.
+ */
+
+ /* Common PXA2xx bits first */
+#define SSCR0_DSS	(0x0000000f)	/* Data Size Select (mask) */
+#define SSCR0_DataSize(x)  ((x) - 1)	/* Data Size Select [4..16] */
+#define SSCR0_FRF	(0x00000030)	/* FRame Format (mask) */
+#define SSCR0_Motorola	(0x0 << 4)	/* Motorola's Serial Peripheral Interface (SPI) */
+#define SSCR0_TI	(0x1 << 4)	/* Texas Instruments' Synchronous Serial Protocol (SSP) */
+#define SSCR0_National	(0x2 << 4)	/* National Microwire */
+#define SSCR0_ECS	(1 << 6)	/* External clock select */
+#define SSCR0_SSE	(1 << 7)	/* Synchronous Serial Port Enable */
+#if defined(CONFIG_PXA25x)
+#define SSCR0_SCR	(0x0000ff00)	/* Serial Clock Rate (mask) */
+#define SSCR0_SerClkDiv(x) ((((x) - 2)/2) << 8) /* Divisor [2..512] */
+#elif defined(CONFIG_PXA27x)
+#define SSCR0_SCR	(0x000fff00)	/* Serial Clock Rate (mask) */
+#define SSCR0_SerClkDiv(x) (((x) - 1) << 8) /* Divisor [1..4096] */
+#define SSCR0_EDSS	(1 << 20)	/* Extended data size select */
+#define SSCR0_NCS	(1 << 21)	/* Network clock select */
+#define SSCR0_RIM	(1 << 22)	/* Receive FIFO overrrun interrupt mask */
+#define SSCR0_TUM	(1 << 23)	/* Transmit FIFO underrun interrupt mask */
+#define SSCR0_FRDC	(0x07000000)	/* Frame rate divider control (mask) */
+#define SSCR0_SlotsPerFrm(x) (((x) - 1) << 24)	/* Time slots per frame [1..8] */
+#define SSCR0_ADC	(1 << 30)	/* Audio clock select */
+#define SSCR0_MOD	(1 << 31)	/* Mode (normal or network) */
+#endif
+
+#define SSCR1_RIE	(1 << 0)	/* Receive FIFO Interrupt Enable */
+#define SSCR1_TIE	(1 << 1)	/* Transmit FIFO Interrupt Enable */
+#define SSCR1_LBM	(1 << 2)	/* Loop-Back Mode */
+#define SSCR1_SPO	(1 << 3)	/* Motorola SPI SSPSCLK polarity setting */
+#define SSCR1_SPH	(1 << 4)	/* Motorola SPI SSPSCLK phase setting */
+#define SSCR1_MWDS	(1 << 5)	/* Microwire Transmit Data Size */
+#define SSCR1_TFT	(0x000003c0)	/* Transmit FIFO Threshold (mask) */
+#define SSCR1_TxTresh(x) (((x) - 1) << 6) /* level [1..16] */
+#define SSCR1_RFT	(0x00003c00)	/* Receive FIFO Threshold (mask) */
+#define SSCR1_RxTresh(x) (((x) - 1) << 10) /* level [1..16] */
+
+#define SSSR_TNF	(1 << 2)	/* Transmit FIFO Not Full */
+#define SSSR_RNE	(1 << 3)	/* Receive FIFO Not Empty */
+#define SSSR_BSY	(1 << 4)	/* SSP Busy */
+#define SSSR_TFS	(1 << 5)	/* Transmit FIFO Service Request */
+#define SSSR_RFS	(1 << 6)	/* Receive FIFO Service Request */
+#define SSSR_ROR	(1 << 7)	/* Receive FIFO Overrun */
+
+#define SSCR0_TIM		(1 << 23)	/* Transmit FIFO Under Run Interrupt Mask */
+#define SSCR0_RIM		(1 << 22)	/* Receive FIFO Over Run interrupt Mask */
+#define SSCR0_NCS		(1 << 21)	/* Network Clock Select */
+#define SSCR0_EDSS		(1 << 20)	/* Extended Data Size Select */
+
+/* extra bits in PXA255, PXA26x and PXA27x SSP ports */
+#define SSCR0_TISSP		(1 << 4)	/* TI Sync Serial Protocol */
+#define SSCR0_PSP		(3 << 4)	/* PSP - Programmable Serial Protocol */
+#define SSCR1_TTELP		(1 << 31)	/* TXD Tristate Enable Last Phase */
+#define SSCR1_TTE		(1 << 30)	/* TXD Tristate Enable */
+#define SSCR1_EBCEI		(1 << 29)	/* Enable Bit Count Error interrupt */
+#define SSCR1_SCFR		(1 << 28)	/* Slave Clock free Running */
+#define SSCR1_ECRA		(1 << 27)	/* Enable Clock Request A */
+#define SSCR1_ECRB		(1 << 26)	/* Enable Clock request B */
+#define SSCR1_SCLKDIR		(1 << 25)	/* Serial Bit Rate Clock Direction */
+#define SSCR1_SFRMDIR		(1 << 24)	/* Frame Direction */
+#define SSCR1_RWOT		(1 << 23)	/* Receive Without Transmit */
+#define SSCR1_TRAIL		(1 << 22)	/* Trailing Byte */
+#define SSCR1_TSRE		(1 << 21)	/* Transmit Service Request Enable */
+#define SSCR1_RSRE		(1 << 20)	/* Receive Service Request Enable */
+#define SSCR1_TINTE		(1 << 19)	/* Receiver Time-out Interrupt enable */
+#define SSCR1_PINTE		(1 << 18)	/* Peripheral Trailing Byte Interupt Enable */
+#define SSCR1_STRF		(1 << 15)	/* Select FIFO or EFWR */
+#define SSCR1_EFWR		(1 << 14)	/* Enable FIFO Write/Read */
+
+#define SSSR_BCE		(1 << 23)	/* Bit Count Error */
+#define SSSR_CSS		(1 << 22)	/* Clock Synchronisation Status */
+#define SSSR_TUR		(1 << 21)	/* Transmit FIFO Under Run */
+#define SSSR_EOC		(1 << 20)	/* End Of Chain */
+#define SSSR_TINT		(1 << 19)	/* Receiver Time-out Interrupt */
+#define SSSR_PINT		(1 << 18)	/* Peripheral Trailing Byte Interrupt */
+
+#define SSPSP_FSRT		(1 << 25)	/* Frame Sync Relative Timing */
+#define SSPSP_DMYSTOP(x)	((x) << 23)	/* Dummy Stop */
+#define SSPSP_SFRMWDTH(x)	((x) << 16)	/* Serial Frame Width */
+#define SSPSP_SFRMDLY(x)	((x) << 9)	/* Serial Frame Delay */
+#define SSPSP_DMYSTRT(x)	((x) << 7)	/* Dummy Start */
+#define SSPSP_STRTDLY(x)	((x) << 4)	/* Start Delay */
+#define SSPSP_ETDS		(1 << 3)	/* End of Transfer data State */
+#define SSPSP_SFRMP		(1 << 2)	/* Serial Frame Polarity */
+#define SSPSP_SCMODE(x)		((x) << 0)	/* Serial Bit Rate Clock Mode */
+
+#define SSACD_SCDB		(1 << 3)	/* SSPSYSCLK Divider Bypass */
+#define SSACD_ACPS(x)		((x) << 4)	/* Audio clock PLL select */
+#define SSACD_ACDS(x)		((x) << 0)	/* Audio clock divider select */
+
+#define SSCR0_P1	__REG(0x41000000)  /* SSP Port 1 Control Register 0 */
+#define SSCR1_P1	__REG(0x41000004)  /* SSP Port 1 Control Register 1 */
+#define SSSR_P1		__REG(0x41000008)  /* SSP Port 1 Status Register */
+#define SSITR_P1	__REG(0x4100000C)  /* SSP Port 1 Interrupt Test Register */
+#define SSDR_P1		__REG(0x41000010)  /* (Write / Read) SSP Port 1 Data Write Register/SSP Data Read Register */
+
+/* Support existing PXA25x drivers */
+#define SSCR0		SSCR0_P1  /* SSP Control Register 0 */
+#define SSCR1		SSCR1_P1  /* SSP Control Register 1 */
+#define SSSR		SSSR_P1	  /* SSP Status Register */
+#define SSITR		SSITR_P1  /* SSP Interrupt Test Register */
+#define SSDR		SSDR_P1	  /* (Write / Read) SSP Data Write Register/SSP Data Read Register */
+
+/* PXA27x ports */
+#if defined (CONFIG_PXA27x)
+#define SSTO_P1		__REG(0x41000028)  /* SSP Port 1 Time Out Register */
+#define SSPSP_P1	__REG(0x4100002C)  /* SSP Port 1 Programmable Serial Protocol */
+#define SSTSA_P1	__REG(0x41000030)  /* SSP Port 1 Tx Timeslot Active */
+#define SSRSA_P1	__REG(0x41000034)  /* SSP Port 1 Rx Timeslot Active */
+#define SSTSS_P1	__REG(0x41000038)  /* SSP Port 1 Timeslot Status */
+#define SSACD_P1	__REG(0x4100003C)  /* SSP Port 1 Audio Clock Divider */
+#define SSCR0_P2	__REG(0x41700000)  /* SSP Port 2 Control Register 0 */
+#define SSCR1_P2	__REG(0x41700004)  /* SSP Port 2 Control Register 1 */
+#define SSSR_P2		__REG(0x41700008)  /* SSP Port 2 Status Register */
+#define SSITR_P2	__REG(0x4170000C)  /* SSP Port 2 Interrupt Test Register */
+#define SSDR_P2		__REG(0x41700010)  /* (Write / Read) SSP Port 2 Data Write Register/SSP Data Read Register */
+#define SSTO_P2		__REG(0x41700028)  /* SSP Port 2 Time Out Register */
+#define SSPSP_P2	__REG(0x4170002C)  /* SSP Port 2 Programmable Serial Protocol */
+#define SSTSA_P2	__REG(0x41700030)  /* SSP Port 2 Tx Timeslot Active */
+#define SSRSA_P2	__REG(0x41700034)  /* SSP Port 2 Rx Timeslot Active */
+#define SSTSS_P2	__REG(0x41700038)  /* SSP Port 2 Timeslot Status */
+#define SSACD_P2	__REG(0x4170003C)  /* SSP Port 2 Audio Clock Divider */
+#define SSCR0_P3	__REG(0x41900000)  /* SSP Port 3 Control Register 0 */
+#define SSCR1_P3	__REG(0x41900004)  /* SSP Port 3 Control Register 1 */
+#define SSSR_P3		__REG(0x41900008)  /* SSP Port 3 Status Register */
+#define SSITR_P3	__REG(0x4190000C)  /* SSP Port 3 Interrupt Test Register */
+#define SSDR_P3		__REG(0x41900010)  /* (Write / Read) SSP Port 3 Data Write Register/SSP Data Read Register */
+#define SSTO_P3		__REG(0x41900028)  /* SSP Port 3 Time Out Register */
+#define SSPSP_P3	__REG(0x4190002C)  /* SSP Port 3 Programmable Serial Protocol */
+#define SSTSA_P3	__REG(0x41900030)  /* SSP Port 3 Tx Timeslot Active */
+#define SSRSA_P3	__REG(0x41900034)  /* SSP Port 3 Rx Timeslot Active */
+#define SSTSS_P3	__REG(0x41900038)  /* SSP Port 3 Timeslot Status */
+#define SSACD_P3	__REG(0x4190003C)  /* SSP Port 3 Audio Clock Divider */
+#else /* PXA255 (only port 2) and PXA26x ports*/
+#define SSTO_P1		__REG(0x41000028)  /* SSP Port 1 Time Out Register */
+#define SSPSP_P1	__REG(0x4100002C)  /* SSP Port 1 Programmable Serial Protocol */
+#define SSCR0_P2	__REG(0x41400000)  /* SSP Port 2 Control Register 0 */
+#define SSCR1_P2	__REG(0x41400004)  /* SSP Port 2 Control Register 1 */
+#define SSSR_P2		__REG(0x41400008)  /* SSP Port 2 Status Register */
+#define SSITR_P2	__REG(0x4140000C)  /* SSP Port 2 Interrupt Test Register */
+#define SSDR_P2		__REG(0x41400010)  /* (Write / Read) SSP Port 2 Data Write Register/SSP Data Read Register */
+#define SSTO_P2		__REG(0x41400028)  /* SSP Port 2 Time Out Register */
+#define SSPSP_P2	__REG(0x4140002C)  /* SSP Port 2 Programmable Serial Protocol */
+#define SSCR0_P3	__REG(0x41500000)  /* SSP Port 3 Control Register 0 */
+#define SSCR1_P3	__REG(0x41500004)  /* SSP Port 3 Control Register 1 */
+#define SSSR_P3		__REG(0x41500008)  /* SSP Port 3 Status Register */
+#define SSITR_P3	__REG(0x4150000C)  /* SSP Port 3 Interrupt Test Register */
+#define SSDR_P3		__REG(0x41500010)  /* (Write / Read) SSP Port 3 Data Write Register/SSP Data Read Register */
+#define SSTO_P3		__REG(0x41500028)  /* SSP Port 3 Time Out Register */
+#define SSPSP_P3	__REG(0x4150002C)  /* SSP Port 3 Programmable Serial Protocol */
+#endif
+
+#define SSCR0_P(x) (*(((x) == 1) ? &SSCR0_P1 : ((x) == 2) ? &SSCR0_P2 : ((x) == 3) ? &SSCR0_P3 : NULL))
+#define SSCR1_P(x) (*(((x) == 1) ? &SSCR1_P1 : ((x) == 2) ? &SSCR1_P2 : ((x) == 3) ? &SSCR1_P3 : NULL))
+#define SSSR_P(x) (*(((x) == 1) ? &SSSR_P1 : ((x) == 2) ? &SSSR_P2 : ((x) == 3) ? &SSSR_P3 : NULL))
+#define SSITR_P(x) (*(((x) == 1) ? &SSITR_P1 : ((x) == 2) ? &SSITR_P2 : ((x) == 3) ? &SSITR_P3 : NULL))
+#define SSDR_P(x) (*(((x) == 1) ? &SSDR_P1 : ((x) == 2) ? &SSDR_P2 : ((x) == 3) ? &SSDR_P3 : NULL))
+#define SSTO_P(x) (*(((x) == 1) ? &SSTO_P1 : ((x) == 2) ? &SSTO_P2 : ((x) == 3) ? &SSTO_P3 : NULL))
+#define SSPSP_P(x) (*(((x) == 1) ? &SSPSP_P1 : ((x) == 2) ? &SSPSP_P2 : ((x) == 3) ? &SSPSP_P3 : NULL))
+#define SSTSA_P(x) (*(((x) == 1) ? &SSTSA_P1 : ((x) == 2) ? &SSTSA_P2 : ((x) == 3) ? &SSTSA_P3 : NULL))
+#define SSRSA_P(x) (*(((x) == 1) ? &SSRSA_P1 : ((x) == 2) ? &SSRSA_P2 : ((x) == 3) ? &SSRSA_P3 : NULL))
+#define SSTSS_P(x) (*(((x) == 1) ? &SSTSS_P1 : ((x) == 2) ? &SSTSS_P2 : ((x) == 3) ? &SSTSS_P3 : NULL))
+#define SSACD_P(x) (*(((x) == 1) ? &SSACD_P1 : ((x) == 2) ? &SSACD_P2 : ((x) == 3) ? &SSACD_P3 : NULL))
+
+#endif /* __ASM_ARCH_REGS_SSP_H */
-- 
cgit v1.2.3-59-g8ed1b


From 3dcb00ea58f6b5dc62b89bbfd54353a06e6af921 Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Fri, 30 Nov 2007 18:26:56 +0800
Subject: [ARM] pxa: use __raw_writel()/__raw_readl() for ssp_xxxx()

1. change SSP register definitions from absolute virtual addresses to
   offsets

2. use __raw_writel()/__raw_readl() for functions of ssp_xxxx()

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/ssp.c             | 77 ++++++++++++++++++++------------
 include/asm-arm/arch-pxa/regs-ssp.h | 89 ++++++-------------------------------
 2 files changed, 63 insertions(+), 103 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c
index 0225ee016f2d..b6d37fa7b85f 100644
--- a/arch/arm/mach-pxa/ssp.c
+++ b/arch/arm/mach-pxa/ssp.c
@@ -48,9 +48,11 @@
 static irqreturn_t ssp_interrupt(int irq, void *dev_id)
 {
 	struct ssp_dev *dev = (struct ssp_dev*) dev_id;
-	unsigned int status = SSSR_P(dev->port);
+	struct ssp_device *ssp = dev->ssp;
+	unsigned int status;
 
-	SSSR_P(dev->port) = status; /* clear status bits */
+	status = __raw_readl(ssp->mmio_base + SSSR);
+	__raw_writel(status, ssp->mmio_base + SSSR);
 
 	if (status & SSSR_ROR)
 		printk(KERN_WARNING "SSP(%d): receiver overrun\n", dev->port);
@@ -79,15 +81,16 @@ static irqreturn_t ssp_interrupt(int irq, void *dev_id)
  */
 int ssp_write_word(struct ssp_dev *dev, u32 data)
 {
+	struct ssp_device *ssp = dev->ssp;
 	int timeout = TIMEOUT;
 
-	while (!(SSSR_P(dev->port) & SSSR_TNF)) {
+	while (!(__raw_readl(ssp->mmio_base + SSSR) & SSSR_TNF)) {
 	        if (!--timeout)
 	        	return -ETIMEDOUT;
 		cpu_relax();
 	}
 
-	SSDR_P(dev->port) = data;
+	__raw_writel(data, ssp->mmio_base + SSDR);
 
 	return 0;
 }
@@ -109,15 +112,16 @@ int ssp_write_word(struct ssp_dev *dev, u32 data)
  */
 int ssp_read_word(struct ssp_dev *dev, u32 *data)
 {
+	struct ssp_device *ssp = dev->ssp;
 	int timeout = TIMEOUT;
 
-	while (!(SSSR_P(dev->port) & SSSR_RNE)) {
+	while (!(__raw_readl(ssp->mmio_base + SSSR) & SSSR_RNE)) {
 	        if (!--timeout)
 	        	return -ETIMEDOUT;
 		cpu_relax();
 	}
 
-	*data = SSDR_P(dev->port);
+	*data = __raw_readl(ssp->mmio_base + SSDR);
 	return 0;
 }
 
@@ -131,17 +135,18 @@ int ssp_read_word(struct ssp_dev *dev, u32 *data)
  */
 int ssp_flush(struct ssp_dev *dev)
 {
+	struct ssp_device *ssp = dev->ssp;
 	int timeout = TIMEOUT * 2;
 
 	do {
-		while (SSSR_P(dev->port) & SSSR_RNE) {
+		while (__raw_readl(ssp->mmio_base + SSSR) & SSSR_RNE) {
 		        if (!--timeout)
 		        	return -ETIMEDOUT;
-			(void) SSDR_P(dev->port);
+			(void)__raw_readl(ssp->mmio_base + SSDR);
 		}
 	        if (!--timeout)
 	        	return -ETIMEDOUT;
-	} while (SSSR_P(dev->port) & SSSR_BSY);
+	} while (__raw_readl(ssp->mmio_base + SSSR) & SSSR_BSY);
 
 	return 0;
 }
@@ -153,7 +158,12 @@ int ssp_flush(struct ssp_dev *dev)
  */
 void ssp_enable(struct ssp_dev *dev)
 {
-	SSCR0_P(dev->port) |= SSCR0_SSE;
+	struct ssp_device *ssp = dev->ssp;
+	uint32_t sscr0;
+
+	sscr0 = __raw_readl(ssp->mmio_base + SSCR0);
+	sscr0 |= SSCR0_SSE;
+	__raw_writel(sscr0, ssp->mmio_base + SSCR0);
 }
 
 /**
@@ -163,7 +173,12 @@ void ssp_enable(struct ssp_dev *dev)
  */
 void ssp_disable(struct ssp_dev *dev)
 {
-	SSCR0_P(dev->port) &= ~SSCR0_SSE;
+	struct ssp_device *ssp = dev->ssp;
+	uint32_t sscr0;
+
+	sscr0 = __raw_readl(ssp->mmio_base + SSCR0);
+	sscr0 &= ~SSCR0_SSE;
+	__raw_writel(sscr0, ssp->mmio_base + SSCR0);
 }
 
 /**
@@ -172,14 +187,16 @@ void ssp_disable(struct ssp_dev *dev)
  *
  * Save the configured SSP state for suspend.
  */
-void ssp_save_state(struct ssp_dev *dev, struct ssp_state *ssp)
+void ssp_save_state(struct ssp_dev *dev, struct ssp_state *state)
 {
-	ssp->cr0 = SSCR0_P(dev->port);
-	ssp->cr1 = SSCR1_P(dev->port);
-	ssp->to = SSTO_P(dev->port);
-	ssp->psp = SSPSP_P(dev->port);
+	struct ssp_device *ssp = dev->ssp;
+
+	state->cr0 = __raw_readl(ssp->mmio_base + SSCR0);
+	state->cr1 = __raw_readl(ssp->mmio_base + SSCR1);
+	state->to  = __raw_readl(ssp->mmio_base + SSTO);
+	state->psp = __raw_readl(ssp->mmio_base + SSPSP);
 
-	SSCR0_P(dev->port) &= ~SSCR0_SSE;
+	ssp_disable(dev);
 }
 
 /**
@@ -188,16 +205,18 @@ void ssp_save_state(struct ssp_dev *dev, struct ssp_state *ssp)
  *
  * Restore the SSP configuration saved previously by ssp_save_state.
  */
-void ssp_restore_state(struct ssp_dev *dev, struct ssp_state *ssp)
+void ssp_restore_state(struct ssp_dev *dev, struct ssp_state *state)
 {
-	SSSR_P(dev->port) = SSSR_ROR | SSSR_TUR | SSSR_BCE;
+	struct ssp_device *ssp = dev->ssp;
+	uint32_t sssr = SSSR_ROR | SSSR_TUR | SSSR_BCE;
 
-	SSCR0_P(dev->port) = ssp->cr0 & ~SSCR0_SSE;
-	SSCR1_P(dev->port) = ssp->cr1;
-	SSTO_P(dev->port) = ssp->to;
-	SSPSP_P(dev->port) = ssp->psp;
+	__raw_writel(sssr, ssp->mmio_base + SSSR);
 
-	SSCR0_P(dev->port) = ssp->cr0;
+	__raw_writel(state->cr0 & ~SSCR0_SSE, ssp->mmio_base + SSCR0);
+	__raw_writel(state->cr1, ssp->mmio_base + SSCR1);
+	__raw_writel(state->to,  ssp->mmio_base + SSTO);
+	__raw_writel(state->psp, ssp->mmio_base + SSPSP);
+	__raw_writel(state->cr0, ssp->mmio_base + SSCR0);
 }
 
 /**
@@ -211,15 +230,17 @@ void ssp_restore_state(struct ssp_dev *dev, struct ssp_state *ssp)
  */
 int ssp_config(struct ssp_dev *dev, u32 mode, u32 flags, u32 psp_flags, u32 speed)
 {
+	struct ssp_device *ssp = dev->ssp;
+
 	dev->mode = mode;
 	dev->flags = flags;
 	dev->psp_flags = psp_flags;
 	dev->speed = speed;
 
 	/* set up port type, speed, port settings */
-	SSCR0_P(dev->port) = (dev->speed | dev->mode);
-	SSCR1_P(dev->port) = dev->flags;
-	SSPSP_P(dev->port) = dev->psp_flags;
+	__raw_writel((dev->speed | dev->mode), ssp->mmio_base + SSCR0);
+	__raw_writel(dev->flags, ssp->mmio_base + SSCR1);
+	__raw_writel(dev->psp_flags, ssp->mmio_base + SSPSP);
 
 	return 0;
 }
@@ -274,7 +295,7 @@ void ssp_exit(struct ssp_dev *dev)
 {
 	struct ssp_device *ssp = dev->ssp;
 
-	SSCR0_P(dev->port) &= ~SSCR0_SSE;
+	ssp_disable(dev);
 	free_irq(dev->irq, dev);
 	clk_disable(ssp->clk);
 	ssp_free(ssp);
diff --git a/include/asm-arm/arch-pxa/regs-ssp.h b/include/asm-arm/arch-pxa/regs-ssp.h
index 687ade109113..991cb688db75 100644
--- a/include/asm-arm/arch-pxa/regs-ssp.h
+++ b/include/asm-arm/arch-pxa/regs-ssp.h
@@ -7,7 +7,20 @@
  * PXA255, PXA26x and PXA27x have extra ports, registers and bits.
  */
 
- /* Common PXA2xx bits first */
+#define SSCR0		(0x00)  /* SSP Control Register 0 */
+#define SSCR1		(0x04)  /* SSP Control Register 1 */
+#define SSSR		(0x08)  /* SSP Status Register */
+#define SSITR		(0x0C)  /* SSP Interrupt Test Register */
+#define SSDR		(0x10)  /* SSP Data Write/Data Read Register */
+
+#define SSTO		(0x28)  /* SSP Time Out Register */
+#define SSPSP		(0x2C)  /* SSP Programmable Serial Protocol */
+#define SSTSA		(0x30)  /* SSP Tx Timeslot Active */
+#define SSRSA		(0x34)  /* SSP Rx Timeslot Active */
+#define SSTSS		(0x38)  /* SSP Timeslot Status */
+#define SSACD		(0x3C)  /* SSP Audio Clock Divider */
+
+/* Common PXA2xx bits first */
 #define SSCR0_DSS	(0x0000000f)	/* Data Size Select (mask) */
 #define SSCR0_DataSize(x)  ((x) - 1)	/* Data Size Select [4..16] */
 #define SSCR0_FRF	(0x00000030)	/* FRame Format (mask) */
@@ -96,78 +109,4 @@
 #define SSACD_ACPS(x)		((x) << 4)	/* Audio clock PLL select */
 #define SSACD_ACDS(x)		((x) << 0)	/* Audio clock divider select */
 
-#define SSCR0_P1	__REG(0x41000000)  /* SSP Port 1 Control Register 0 */
-#define SSCR1_P1	__REG(0x41000004)  /* SSP Port 1 Control Register 1 */
-#define SSSR_P1		__REG(0x41000008)  /* SSP Port 1 Status Register */
-#define SSITR_P1	__REG(0x4100000C)  /* SSP Port 1 Interrupt Test Register */
-#define SSDR_P1		__REG(0x41000010)  /* (Write / Read) SSP Port 1 Data Write Register/SSP Data Read Register */
-
-/* Support existing PXA25x drivers */
-#define SSCR0		SSCR0_P1  /* SSP Control Register 0 */
-#define SSCR1		SSCR1_P1  /* SSP Control Register 1 */
-#define SSSR		SSSR_P1	  /* SSP Status Register */
-#define SSITR		SSITR_P1  /* SSP Interrupt Test Register */
-#define SSDR		SSDR_P1	  /* (Write / Read) SSP Data Write Register/SSP Data Read Register */
-
-/* PXA27x ports */
-#if defined (CONFIG_PXA27x)
-#define SSTO_P1		__REG(0x41000028)  /* SSP Port 1 Time Out Register */
-#define SSPSP_P1	__REG(0x4100002C)  /* SSP Port 1 Programmable Serial Protocol */
-#define SSTSA_P1	__REG(0x41000030)  /* SSP Port 1 Tx Timeslot Active */
-#define SSRSA_P1	__REG(0x41000034)  /* SSP Port 1 Rx Timeslot Active */
-#define SSTSS_P1	__REG(0x41000038)  /* SSP Port 1 Timeslot Status */
-#define SSACD_P1	__REG(0x4100003C)  /* SSP Port 1 Audio Clock Divider */
-#define SSCR0_P2	__REG(0x41700000)  /* SSP Port 2 Control Register 0 */
-#define SSCR1_P2	__REG(0x41700004)  /* SSP Port 2 Control Register 1 */
-#define SSSR_P2		__REG(0x41700008)  /* SSP Port 2 Status Register */
-#define SSITR_P2	__REG(0x4170000C)  /* SSP Port 2 Interrupt Test Register */
-#define SSDR_P2		__REG(0x41700010)  /* (Write / Read) SSP Port 2 Data Write Register/SSP Data Read Register */
-#define SSTO_P2		__REG(0x41700028)  /* SSP Port 2 Time Out Register */
-#define SSPSP_P2	__REG(0x4170002C)  /* SSP Port 2 Programmable Serial Protocol */
-#define SSTSA_P2	__REG(0x41700030)  /* SSP Port 2 Tx Timeslot Active */
-#define SSRSA_P2	__REG(0x41700034)  /* SSP Port 2 Rx Timeslot Active */
-#define SSTSS_P2	__REG(0x41700038)  /* SSP Port 2 Timeslot Status */
-#define SSACD_P2	__REG(0x4170003C)  /* SSP Port 2 Audio Clock Divider */
-#define SSCR0_P3	__REG(0x41900000)  /* SSP Port 3 Control Register 0 */
-#define SSCR1_P3	__REG(0x41900004)  /* SSP Port 3 Control Register 1 */
-#define SSSR_P3		__REG(0x41900008)  /* SSP Port 3 Status Register */
-#define SSITR_P3	__REG(0x4190000C)  /* SSP Port 3 Interrupt Test Register */
-#define SSDR_P3		__REG(0x41900010)  /* (Write / Read) SSP Port 3 Data Write Register/SSP Data Read Register */
-#define SSTO_P3		__REG(0x41900028)  /* SSP Port 3 Time Out Register */
-#define SSPSP_P3	__REG(0x4190002C)  /* SSP Port 3 Programmable Serial Protocol */
-#define SSTSA_P3	__REG(0x41900030)  /* SSP Port 3 Tx Timeslot Active */
-#define SSRSA_P3	__REG(0x41900034)  /* SSP Port 3 Rx Timeslot Active */
-#define SSTSS_P3	__REG(0x41900038)  /* SSP Port 3 Timeslot Status */
-#define SSACD_P3	__REG(0x4190003C)  /* SSP Port 3 Audio Clock Divider */
-#else /* PXA255 (only port 2) and PXA26x ports*/
-#define SSTO_P1		__REG(0x41000028)  /* SSP Port 1 Time Out Register */
-#define SSPSP_P1	__REG(0x4100002C)  /* SSP Port 1 Programmable Serial Protocol */
-#define SSCR0_P2	__REG(0x41400000)  /* SSP Port 2 Control Register 0 */
-#define SSCR1_P2	__REG(0x41400004)  /* SSP Port 2 Control Register 1 */
-#define SSSR_P2		__REG(0x41400008)  /* SSP Port 2 Status Register */
-#define SSITR_P2	__REG(0x4140000C)  /* SSP Port 2 Interrupt Test Register */
-#define SSDR_P2		__REG(0x41400010)  /* (Write / Read) SSP Port 2 Data Write Register/SSP Data Read Register */
-#define SSTO_P2		__REG(0x41400028)  /* SSP Port 2 Time Out Register */
-#define SSPSP_P2	__REG(0x4140002C)  /* SSP Port 2 Programmable Serial Protocol */
-#define SSCR0_P3	__REG(0x41500000)  /* SSP Port 3 Control Register 0 */
-#define SSCR1_P3	__REG(0x41500004)  /* SSP Port 3 Control Register 1 */
-#define SSSR_P3		__REG(0x41500008)  /* SSP Port 3 Status Register */
-#define SSITR_P3	__REG(0x4150000C)  /* SSP Port 3 Interrupt Test Register */
-#define SSDR_P3		__REG(0x41500010)  /* (Write / Read) SSP Port 3 Data Write Register/SSP Data Read Register */
-#define SSTO_P3		__REG(0x41500028)  /* SSP Port 3 Time Out Register */
-#define SSPSP_P3	__REG(0x4150002C)  /* SSP Port 3 Programmable Serial Protocol */
-#endif
-
-#define SSCR0_P(x) (*(((x) == 1) ? &SSCR0_P1 : ((x) == 2) ? &SSCR0_P2 : ((x) == 3) ? &SSCR0_P3 : NULL))
-#define SSCR1_P(x) (*(((x) == 1) ? &SSCR1_P1 : ((x) == 2) ? &SSCR1_P2 : ((x) == 3) ? &SSCR1_P3 : NULL))
-#define SSSR_P(x) (*(((x) == 1) ? &SSSR_P1 : ((x) == 2) ? &SSSR_P2 : ((x) == 3) ? &SSSR_P3 : NULL))
-#define SSITR_P(x) (*(((x) == 1) ? &SSITR_P1 : ((x) == 2) ? &SSITR_P2 : ((x) == 3) ? &SSITR_P3 : NULL))
-#define SSDR_P(x) (*(((x) == 1) ? &SSDR_P1 : ((x) == 2) ? &SSDR_P2 : ((x) == 3) ? &SSDR_P3 : NULL))
-#define SSTO_P(x) (*(((x) == 1) ? &SSTO_P1 : ((x) == 2) ? &SSTO_P2 : ((x) == 3) ? &SSTO_P3 : NULL))
-#define SSPSP_P(x) (*(((x) == 1) ? &SSPSP_P1 : ((x) == 2) ? &SSPSP_P2 : ((x) == 3) ? &SSPSP_P3 : NULL))
-#define SSTSA_P(x) (*(((x) == 1) ? &SSTSA_P1 : ((x) == 2) ? &SSTSA_P2 : ((x) == 3) ? &SSTSA_P3 : NULL))
-#define SSRSA_P(x) (*(((x) == 1) ? &SSRSA_P1 : ((x) == 2) ? &SSRSA_P2 : ((x) == 3) ? &SSRSA_P3 : NULL))
-#define SSTSS_P(x) (*(((x) == 1) ? &SSTSS_P1 : ((x) == 2) ? &SSTSS_P2 : ((x) == 3) ? &SSTSS_P3 : NULL))
-#define SSACD_P(x) (*(((x) == 1) ? &SSACD_P1 : ((x) == 2) ? &SSACD_P2 : ((x) == 3) ? &SSACD_P3 : NULL))
-
 #endif /* __ASM_ARCH_REGS_SSP_H */
-- 
cgit v1.2.3-59-g8ed1b


From 2f1a74e5a2de0459139b85af95e901448726c375 Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Wed, 21 Nov 2007 18:50:53 +0800
Subject: [ARM] pxa: make pxa2xx_spi driver use ssp_request()/ssp_free()

1. make pxa2xx_spi.c use ssp_request() and ssp_free() to get the common
   information of the designated SSP port.

2. remove those IRQ/memory request code, ssp_request() has done that for
   the driver

3. the SPI platform device is thus made psuedo, no resource (memory/IRQ)
   has to be defined, all will be retreived by ssp_request()

4. introduce ssp_get_clk_div() to handle controller difference in clock
   divisor setting

5. use clk_xxx() API for clock enable/disable, and clk_get_rate() to
   handle the different SSP clock frequency between different processors

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/lubbock.c           |  17 -----
 drivers/spi/Kconfig                   |   1 +
 drivers/spi/pxa2xx_spi.c              | 138 +++++++++++++---------------------
 include/asm-arm/arch-pxa/pxa2xx_spi.h |  24 ------
 4 files changed, 53 insertions(+), 127 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index 1d3112dc629e..ebb73f133486 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -206,30 +206,13 @@ static struct resource smc91x_resources[] = {
  * (to J5) and poking board registers (as done below).  Else it's only useful
  * for the temperature sensors.
  */
-static struct resource pxa_ssp_resources[] = {
-	[0] = {
-		.start	= __PREG(SSCR0_P(1)),
-		.end	= __PREG(SSCR0_P(1)) + 0x14,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= IRQ_SSP,
-		.end	= IRQ_SSP,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
 static struct pxa2xx_spi_master pxa_ssp_master_info = {
-	.ssp_type	= PXA25x_SSP,
-	.clock_enable	= CKEN_SSP,
 	.num_chipselect	= 0,
 };
 
 static struct platform_device pxa_ssp = {
 	.name		= "pxa2xx-spi",
 	.id		= 1,
-	.resource	= pxa_ssp_resources,
-	.num_resources	= ARRAY_SIZE(pxa_ssp_resources),
 	.dev = {
 		.platform_data	= &pxa_ssp_master_info,
 	},
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index abf05048c638..aaaea81e412a 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -153,6 +153,7 @@ config SPI_OMAP24XX
 config SPI_PXA2XX
 	tristate "PXA2xx SSP SPI master"
 	depends on SPI_MASTER && ARCH_PXA && EXPERIMENTAL
+	select PXA_SSP
 	help
 	  This enables using a PXA2xx SSP port as a SPI master controller.
 	  The driver can be configured to use any SSP port and additional
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index 0ac0f65f69a1..eb817b8eb024 100644
--- a/drivers/spi/pxa2xx_spi.c
+++ b/drivers/spi/pxa2xx_spi.c
@@ -27,6 +27,7 @@
 #include <linux/spi/spi.h>
 #include <linux/workqueue.h>
 #include <linux/delay.h>
+#include <linux/clk.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -37,6 +38,7 @@
 #include <asm/arch/hardware.h>
 #include <asm/arch/pxa-regs.h>
 #include <asm/arch/regs-ssp.h>
+#include <asm/arch/ssp.h>
 #include <asm/arch/pxa2xx_spi.h>
 
 MODULE_AUTHOR("Stephen Street");
@@ -81,6 +83,9 @@ struct driver_data {
 	/* Driver model hookup */
 	struct platform_device *pdev;
 
+	/* SSP Info */
+	struct ssp_device *ssp;
+
 	/* SPI framework hookup */
 	enum pxa_ssp_type ssp_type;
 	struct spi_master *master;
@@ -779,6 +784,16 @@ int set_dma_burst_and_threshold(struct chip_data *chip, struct spi_device *spi,
 	return retval;
 }
 
+static unsigned int ssp_get_clk_div(struct ssp_device *ssp, int rate)
+{
+	unsigned long ssp_clk = clk_get_rate(ssp->clk);
+
+	if (ssp->type == PXA25x_SSP)
+		return ((ssp_clk / (2 * rate) - 1) & 0xff) << 8;
+	else
+		return ((ssp_clk / rate - 1) & 0xfff) << 8;
+}
+
 static void pump_transfers(unsigned long data)
 {
 	struct driver_data *drv_data = (struct driver_data *)data;
@@ -786,6 +801,7 @@ static void pump_transfers(unsigned long data)
 	struct spi_transfer *transfer = NULL;
 	struct spi_transfer *previous = NULL;
 	struct chip_data *chip = NULL;
+	struct ssp_device *ssp = drv_data->ssp;
 	void *reg = drv_data->ioaddr;
 	u32 clk_div = 0;
 	u8 bits = 0;
@@ -867,12 +883,7 @@ static void pump_transfers(unsigned long data)
 		if (transfer->bits_per_word)
 			bits = transfer->bits_per_word;
 
-		if (reg == SSP1_VIRT)
-			clk_div = SSP1_SerClkDiv(speed);
-		else if (reg == SSP2_VIRT)
-			clk_div = SSP2_SerClkDiv(speed);
-		else if (reg == SSP3_VIRT)
-			clk_div = SSP3_SerClkDiv(speed);
+		clk_div = ssp_get_clk_div(ssp, speed);
 
 		if (bits <= 8) {
 			drv_data->n_bytes = 1;
@@ -1075,6 +1086,7 @@ static int setup(struct spi_device *spi)
 	struct pxa2xx_spi_chip *chip_info = NULL;
 	struct chip_data *chip;
 	struct driver_data *drv_data = spi_master_get_devdata(spi->master);
+	struct ssp_device *ssp = drv_data->ssp;
 	unsigned int clk_div;
 
 	if (!spi->bits_per_word)
@@ -1158,18 +1170,7 @@ static int setup(struct spi_device *spi)
 		}
 	}
 
-	if (drv_data->ioaddr == SSP1_VIRT)
-		clk_div = SSP1_SerClkDiv(spi->max_speed_hz);
-	else if (drv_data->ioaddr == SSP2_VIRT)
-		clk_div = SSP2_SerClkDiv(spi->max_speed_hz);
-	else if (drv_data->ioaddr == SSP3_VIRT)
-		clk_div = SSP3_SerClkDiv(spi->max_speed_hz);
-	else
-	{
-		dev_err(&spi->dev, "failed setup: unknown IO address=0x%p\n",
-			drv_data->ioaddr);
-		return -ENODEV;
-	}
+	clk_div = ssp_get_clk_div(ssp, spi->max_speed_hz);
 	chip->speed_hz = spi->max_speed_hz;
 
 	chip->cr0 = clk_div
@@ -1184,15 +1185,15 @@ static int setup(struct spi_device *spi)
 
 	/* NOTE:  PXA25x_SSP _could_ use external clocking ... */
 	if (drv_data->ssp_type != PXA25x_SSP)
-		dev_dbg(&spi->dev, "%d bits/word, %d Hz, mode %d\n",
+		dev_dbg(&spi->dev, "%d bits/word, %ld Hz, mode %d\n",
 				spi->bits_per_word,
-				(CLOCK_SPEED_HZ)
+				clk_get_rate(ssp->clk)
 					/ (1 + ((chip->cr0 & SSCR0_SCR) >> 8)),
 				spi->mode & 0x3);
 	else
-		dev_dbg(&spi->dev, "%d bits/word, %d Hz, mode %d\n",
+		dev_dbg(&spi->dev, "%d bits/word, %ld Hz, mode %d\n",
 				spi->bits_per_word,
-				(CLOCK_SPEED_HZ/2)
+				clk_get_rate(ssp->clk)
 					/ (1 + ((chip->cr0 & SSCR0_SCR) >> 8)),
 				spi->mode & 0x3);
 
@@ -1324,14 +1325,14 @@ static int __init pxa2xx_spi_probe(struct platform_device *pdev)
 	struct pxa2xx_spi_master *platform_info;
 	struct spi_master *master;
 	struct driver_data *drv_data = 0;
-	struct resource *memory_resource;
-	int irq;
+	struct ssp_device *ssp;
 	int status = 0;
 
 	platform_info = dev->platform_data;
 
-	if (platform_info->ssp_type == SSP_UNDEFINED) {
-		dev_err(&pdev->dev, "undefined SSP\n");
+	ssp = ssp_request(pdev->id, pdev->name);
+	if (ssp == NULL) {
+		dev_err(&pdev->dev, "failed to request SSP%d\n", pdev->id);
 		return -ENODEV;
 	}
 
@@ -1339,12 +1340,14 @@ static int __init pxa2xx_spi_probe(struct platform_device *pdev)
 	master = spi_alloc_master(dev, sizeof(struct driver_data) + 16);
 	if (!master) {
 		dev_err(&pdev->dev, "can not alloc spi_master\n");
+		ssp_free(ssp);
 		return -ENOMEM;
 	}
 	drv_data = spi_master_get_devdata(master);
 	drv_data->master = master;
 	drv_data->master_info = platform_info;
 	drv_data->pdev = pdev;
+	drv_data->ssp = ssp;
 
 	master->bus_num = pdev->id;
 	master->num_chipselect = platform_info->num_chipselect;
@@ -1352,21 +1355,13 @@ static int __init pxa2xx_spi_probe(struct platform_device *pdev)
 	master->setup = setup;
 	master->transfer = transfer;
 
-	drv_data->ssp_type = platform_info->ssp_type;
+	drv_data->ssp_type = ssp->type;
 	drv_data->null_dma_buf = (u32 *)ALIGN((u32)(drv_data +
 						sizeof(struct driver_data)), 8);
 
-	/* Setup register addresses */
-	memory_resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!memory_resource) {
-		dev_err(&pdev->dev, "memory resources not defined\n");
-		status = -ENODEV;
-		goto out_error_master_alloc;
-	}
-
-	drv_data->ioaddr = (void *)io_p2v((unsigned long)(memory_resource->start));
-	drv_data->ssdr_physical = memory_resource->start + 0x00000010;
-	if (platform_info->ssp_type == PXA25x_SSP) {
+	drv_data->ioaddr = ssp->mmio_base;
+	drv_data->ssdr_physical = ssp->phys_base + SSDR;
+	if (ssp->type == PXA25x_SSP) {
 		drv_data->int_cr1 = SSCR1_TIE | SSCR1_RIE;
 		drv_data->dma_cr1 = 0;
 		drv_data->clear_sr = SSSR_ROR;
@@ -1378,15 +1373,7 @@ static int __init pxa2xx_spi_probe(struct platform_device *pdev)
 		drv_data->mask_sr = SSSR_TINT | SSSR_RFS | SSSR_TFS | SSSR_ROR;
 	}
 
-	/* Attach to IRQ */
-	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "irq resource not defined\n");
-		status = -ENODEV;
-		goto out_error_master_alloc;
-	}
-
-	status = request_irq(irq, ssp_int, 0, dev->bus_id, drv_data);
+	status = request_irq(ssp->irq, ssp_int, 0, dev->bus_id, drv_data);
 	if (status < 0) {
 		dev_err(&pdev->dev, "can not get IRQ\n");
 		goto out_error_master_alloc;
@@ -1419,29 +1406,12 @@ static int __init pxa2xx_spi_probe(struct platform_device *pdev)
 			goto out_error_dma_alloc;
 		}
 
-		if (drv_data->ioaddr == SSP1_VIRT) {
-				DRCMRRXSSDR = DRCMR_MAPVLD
-						| drv_data->rx_channel;
-				DRCMRTXSSDR = DRCMR_MAPVLD
-						| drv_data->tx_channel;
-		} else if (drv_data->ioaddr == SSP2_VIRT) {
-				DRCMRRXSS2DR = DRCMR_MAPVLD
-						| drv_data->rx_channel;
-				DRCMRTXSS2DR = DRCMR_MAPVLD
-						| drv_data->tx_channel;
-		} else if (drv_data->ioaddr == SSP3_VIRT) {
-				DRCMRRXSS3DR = DRCMR_MAPVLD
-						| drv_data->rx_channel;
-				DRCMRTXSS3DR = DRCMR_MAPVLD
-						| drv_data->tx_channel;
-		} else {
-			dev_err(dev, "bad SSP type\n");
-			goto out_error_dma_alloc;
-		}
+		DRCMR(ssp->drcmr_rx) = DRCMR_MAPVLD | drv_data->rx_channel;
+		DRCMR(ssp->drcmr_tx) = DRCMR_MAPVLD | drv_data->tx_channel;
 	}
 
 	/* Enable SOC clock */
-	pxa_set_cken(platform_info->clock_enable, 1);
+	clk_enable(ssp->clk);
 
 	/* Load default SSP configuration */
 	write_SSCR0(0, drv_data->ioaddr);
@@ -1480,7 +1450,7 @@ out_error_queue_alloc:
 	destroy_queue(drv_data);
 
 out_error_clock_enabled:
-	pxa_set_cken(platform_info->clock_enable, 0);
+	clk_disable(ssp->clk);
 
 out_error_dma_alloc:
 	if (drv_data->tx_channel != -1)
@@ -1489,17 +1459,18 @@ out_error_dma_alloc:
 		pxa_free_dma(drv_data->rx_channel);
 
 out_error_irq_alloc:
-	free_irq(irq, drv_data);
+	free_irq(ssp->irq, drv_data);
 
 out_error_master_alloc:
 	spi_master_put(master);
+	ssp_free(ssp);
 	return status;
 }
 
 static int pxa2xx_spi_remove(struct platform_device *pdev)
 {
 	struct driver_data *drv_data = platform_get_drvdata(pdev);
-	int irq;
+	struct ssp_device *ssp = drv_data->ssp;
 	int status = 0;
 
 	if (!drv_data)
@@ -1521,28 +1492,21 @@ static int pxa2xx_spi_remove(struct platform_device *pdev)
 
 	/* Disable the SSP at the peripheral and SOC level */
 	write_SSCR0(0, drv_data->ioaddr);
-	pxa_set_cken(drv_data->master_info->clock_enable, 0);
+	clk_disable(ssp->clk);
 
 	/* Release DMA */
 	if (drv_data->master_info->enable_dma) {
-		if (drv_data->ioaddr == SSP1_VIRT) {
-			DRCMRRXSSDR = 0;
-			DRCMRTXSSDR = 0;
-		} else if (drv_data->ioaddr == SSP2_VIRT) {
-			DRCMRRXSS2DR = 0;
-			DRCMRTXSS2DR = 0;
-		} else if (drv_data->ioaddr == SSP3_VIRT) {
-			DRCMRRXSS3DR = 0;
-			DRCMRTXSS3DR = 0;
-		}
+		DRCMR(ssp->drcmr_rx) = 0;
+		DRCMR(ssp->drcmr_tx) = 0;
 		pxa_free_dma(drv_data->tx_channel);
 		pxa_free_dma(drv_data->rx_channel);
 	}
 
 	/* Release IRQ */
-	irq = platform_get_irq(pdev, 0);
-	if (irq >= 0)
-		free_irq(irq, drv_data);
+	free_irq(ssp->irq, drv_data);
+
+	/* Release SSP */
+	ssp_free(ssp);
 
 	/* Disconnect from the SPI framework */
 	spi_unregister_master(drv_data->master);
@@ -1577,6 +1541,7 @@ static int suspend_devices(struct device *dev, void *pm_message)
 static int pxa2xx_spi_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct driver_data *drv_data = platform_get_drvdata(pdev);
+	struct ssp_device *ssp = drv_data->ssp;
 	int status = 0;
 
 	/* Check all childern for current power state */
@@ -1589,7 +1554,7 @@ static int pxa2xx_spi_suspend(struct platform_device *pdev, pm_message_t state)
 	if (status != 0)
 		return status;
 	write_SSCR0(0, drv_data->ioaddr);
-	pxa_set_cken(drv_data->master_info->clock_enable, 0);
+	clk_disable(ssp->clk);
 
 	return 0;
 }
@@ -1597,10 +1562,11 @@ static int pxa2xx_spi_suspend(struct platform_device *pdev, pm_message_t state)
 static int pxa2xx_spi_resume(struct platform_device *pdev)
 {
 	struct driver_data *drv_data = platform_get_drvdata(pdev);
+	struct ssp_device *ssp = drv_data->ssp;
 	int status = 0;
 
 	/* Enable the SSP clock */
-	pxa_set_cken(drv_data->master_info->clock_enable, 1);
+	clk_disable(ssp->clk);
 
 	/* Start the queue running */
 	status = start_queue(drv_data);
diff --git a/include/asm-arm/arch-pxa/pxa2xx_spi.h b/include/asm-arm/arch-pxa/pxa2xx_spi.h
index acc7ec7a84a1..3459fb26ce97 100644
--- a/include/asm-arm/arch-pxa/pxa2xx_spi.h
+++ b/include/asm-arm/arch-pxa/pxa2xx_spi.h
@@ -22,32 +22,8 @@
 #define PXA2XX_CS_ASSERT (0x01)
 #define PXA2XX_CS_DEASSERT (0x02)
 
-#if defined(CONFIG_PXA25x)
-#define CLOCK_SPEED_HZ 3686400
-#define SSP1_SerClkDiv(x) (((CLOCK_SPEED_HZ/2/(x+1))<<8)&0x0000ff00)
-#define SSP2_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00)
-#define SSP3_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00)
-#elif defined(CONFIG_PXA27x)
-#define CLOCK_SPEED_HZ 13000000
-#define SSP1_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00)
-#define SSP2_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00)
-#define SSP3_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00)
-#endif
-
-#define SSP1_VIRT ((void *)(io_p2v(__PREG(SSCR0_P(1)))))
-#define SSP2_VIRT ((void *)(io_p2v(__PREG(SSCR0_P(2)))))
-#define SSP3_VIRT ((void *)(io_p2v(__PREG(SSCR0_P(3)))))
-
-enum pxa_ssp_type {
-	SSP_UNDEFINED = 0,
-	PXA25x_SSP,  /* pxa 210, 250, 255, 26x */
-	PXA25x_NSSP, /* pxa 255, 26x (including ASSP) */
-	PXA27x_SSP,
-};
-
 /* device.platform_data for SSP controller devices */
 struct pxa2xx_spi_master {
-	enum pxa_ssp_type ssp_type;
 	u32 clock_enable;
 	u16 num_chipselect;
 	u8 enable_dma;
-- 
cgit v1.2.3-59-g8ed1b


From 16f159b1fc4f227a25cc4792e3804353e4777ebe Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Mon, 10 Dec 2007 13:33:06 +0000
Subject: [ARM] pxa: only register "cpld_irq" for the correct platform

Only register the "cpld_irq" sysclass for mainstone/lubbock if we're
running on one of those platforms.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/lubbock.c   | 10 +++++++---
 arch/arm/mach-pxa/mainstone.c | 10 +++++++---
 2 files changed, 14 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index ebb73f133486..1b9290c0ed5e 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -136,9 +136,13 @@ static struct sys_device lubbock_irq_device = {
 
 static int __init lubbock_irq_device_init(void)
 {
-	int ret = sysdev_class_register(&lubbock_irq_sysclass);
-	if (ret == 0)
-		ret = sysdev_register(&lubbock_irq_device);
+	int ret = -ENODEV;
+
+	if (machine_is_lubbock()) {
+		ret = sysdev_class_register(&lubbock_irq_sysclass);
+		if (ret == 0)
+			ret = sysdev_register(&lubbock_irq_device);
+	}
 	return ret;
 }
 
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index a5db00c38f1f..237459bf67c6 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -131,9 +131,13 @@ static struct sys_device mainstone_irq_device = {
 
 static int __init mainstone_irq_device_init(void)
 {
-	int ret = sysdev_class_register(&mainstone_irq_sysclass);
-	if (ret == 0)
-		ret = sysdev_register(&mainstone_irq_device);
+	int ret = -ENODEV;
+
+	if (machine_is_mainstone()) {
+		ret = sysdev_class_register(&mainstone_irq_sysclass);
+		if (ret == 0)
+			ret = sysdev_register(&mainstone_irq_device);
+	}
 	return ret;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From cae0554126e0545f8fc37282db7a906df1ec5c3c Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Mon, 10 Dec 2007 15:35:54 +0000
Subject: [ARM] pxa: initialise SSP earlier

Initialise the SSP driver at arch_initcall() time, so it's available
for other drivers to use it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/ssp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c
index b6d37fa7b85f..575b662200a7 100644
--- a/arch/arm/mach-pxa/ssp.c
+++ b/arch/arm/mach-pxa/ssp.c
@@ -524,7 +524,7 @@ static void __exit pxa_ssp_exit(void)
 	platform_driver_unregister(&pxa27x_ssp_driver);
 }
 
-module_init(pxa_ssp_init);
+arch_initcall(pxa_ssp_init);
 module_exit(pxa_ssp_exit);
 
 EXPORT_SYMBOL(ssp_write_word);
-- 
cgit v1.2.3-59-g8ed1b


From 9e2697ff371b4380dca108a66860868c19d8c4b6 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Fri, 14 Dec 2007 13:30:14 +0000
Subject: [ARM] pxa: add cpufreq support

There have been patches hanging around for ages to add support for
cpufreq to PXA255 processors.  It's about time we applied one.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 Documentation/cpu-freq/user-guide.txt |   1 +
 arch/arm/Kconfig                      |   8 +-
 arch/arm/mach-pxa/Makefile            |   1 +
 arch/arm/mach-pxa/cpu-pxa.c           | 293 ++++++++++++++++++++++++++++++++++
 4 files changed, 302 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-pxa/cpu-pxa.c

(limited to 'arch')

diff --git a/Documentation/cpu-freq/user-guide.txt b/Documentation/cpu-freq/user-guide.txt
index 555c8cf3650a..af3b925ece08 100644
--- a/Documentation/cpu-freq/user-guide.txt
+++ b/Documentation/cpu-freq/user-guide.txt
@@ -45,6 +45,7 @@ The following ARM processors are supported by cpufreq:
 ARM Integrator
 ARM-SA1100
 ARM-SA1110
+Intel PXA
 
 
 1.2 x86
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1be718208704..4ea3d9e97f7f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -868,7 +868,7 @@ config KEXEC
 
 endmenu
 
-if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX )
+if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
 
 menu "CPU Frequency scaling"
 
@@ -904,6 +904,12 @@ config CPU_FREQ_IMX
 
 	  If in doubt, say N.
 
+config CPU_FREQ_PXA
+	bool
+	depends on CPU_FREQ && ARCH_PXA && PXA25x
+	default y
+	select CPU_FREQ_DEFAULT_GOV_USERSPACE
+
 endmenu
 
 endif
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 4263527e5123..3133dc4eaa7e 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_LEDS)		+= $(led-y)
 
 # Misc features
 obj-$(CONFIG_PM)		+= pm.o sleep.o
+obj-$(CONFIG_CPU_FREQ)		+= cpu-pxa.o
 obj-$(CONFIG_PXA_SSP)		+= ssp.o
 
 ifeq ($(CONFIG_PXA27x),y)
diff --git a/arch/arm/mach-pxa/cpu-pxa.c b/arch/arm/mach-pxa/cpu-pxa.c
new file mode 100644
index 000000000000..18d042bdf243
--- /dev/null
+++ b/arch/arm/mach-pxa/cpu-pxa.c
@@ -0,0 +1,293 @@
+/*
+ *  linux/arch/arm/mach-pxa/cpu-pxa.c
+ *
+ *  Copyright (C) 2002,2003 Intrinsyc Software
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * History:
+ *   31-Jul-2002 : Initial version [FB]
+ *   29-Jan-2003 : added PXA255 support [FB]
+ *   20-Apr-2003 : ported to v2.5 (Dustin McIntire, Sensoria Corp.)
+ *
+ * Note:
+ *   This driver may change the memory bus clock rate, but will not do any
+ *   platform specific access timing changes... for example if you have flash
+ *   memory connected to CS0, you will need to register a platform specific
+ *   notifier which will adjust the memory access strobes to maintain a
+ *   minimum strobe width.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/cpufreq.h>
+
+#include <asm/hardware.h>
+#include <asm/arch/pxa-regs.h>
+
+#ifdef DEBUG
+static unsigned int freq_debug;
+MODULE_PARM(freq_debug, "i");
+MODULE_PARM_DESC(freq_debug, "Set the debug messages to on=1/off=0");
+#else
+#define freq_debug  0
+#endif
+
+typedef struct {
+	unsigned int khz;
+	unsigned int membus;
+	unsigned int cccr;
+	unsigned int div2;
+} pxa_freqs_t;
+
+/* Define the refresh period in mSec for the SDRAM and the number of rows */
+#define SDRAM_TREF          64      /* standard 64ms SDRAM */
+#define SDRAM_ROWS          4096    /* 64MB=8192 32MB=4096 */
+#define MDREFR_DRI(x)       (((x) * SDRAM_TREF) / (SDRAM_ROWS * 32))
+
+#define CCLKCFG_TURBO       0x1
+#define CCLKCFG_FCS         0x2
+#define PXA25x_MIN_FREQ     99500
+#define PXA25x_MAX_FREQ     398100
+#define MDREFR_DB2_MASK     (MDREFR_K2DB2 | MDREFR_K1DB2)
+#define MDREFR_DRI_MASK     0xFFF
+
+
+/* Use the run mode frequencies for the CPUFREQ_POLICY_PERFORMANCE policy */
+static pxa_freqs_t pxa255_run_freqs[] =
+{
+    /* CPU   MEMBUS  CCCR  DIV2*/
+    { 99500,  99500, 0x121, 1}, /* run= 99, turbo= 99, PXbus=50,  SDRAM=50 */
+    {132700, 132700, 0x123, 1}, /* run=133, turbo=133, PXbus=66,  SDRAM=66 */
+    {199100,  99500, 0x141, 0}, /* run=199, turbo=199, PXbus=99,  SDRAM=99 */
+    {265400, 132700, 0x143, 1}, /* run=265, turbo=265, PXbus=133, SDRAM=66 */
+    {331800, 165900, 0x145, 1}, /* run=331, turbo=331, PXbus=166, SDRAM=83 */
+    {398100,  99500, 0x161, 0}, /* run=398, turbo=398, PXbus=196, SDRAM=99 */
+    {0,}
+};
+#define NUM_RUN_FREQS ARRAY_SIZE(pxa255_run_freqs)
+
+static struct cpufreq_frequency_table pxa255_run_freq_table[NUM_RUN_FREQS+1];
+
+/* Use the turbo mode frequencies for the CPUFREQ_POLICY_POWERSAVE policy */
+static pxa_freqs_t pxa255_turbo_freqs[] =
+{
+    /* CPU   MEMBUS  CCCR  DIV2*/
+    { 99500, 99500,  0x121, 1}, /* run=99,  turbo= 99, PXbus=50, SDRAM=50 */
+    {199100, 99500,  0x221, 0}, /* run=99,  turbo=199, PXbus=50, SDRAM=99 */
+    {298500, 99500,  0x321, 0}, /* run=99,  turbo=287, PXbus=50, SDRAM=99 */
+    {298600, 99500,  0x1c1, 0}, /* run=199, turbo=287, PXbus=99, SDRAM=99 */
+    {398100, 99500,  0x241, 0}, /* run=199, turbo=398, PXbus=99, SDRAM=99 */
+    {0,}
+};
+#define NUM_TURBO_FREQS ARRAY_SIZE(pxa255_turbo_freqs)
+
+static struct cpufreq_frequency_table pxa255_turbo_freq_table[NUM_TURBO_FREQS+1];
+
+extern unsigned get_clk_frequency_khz(int info);
+
+/* find a valid frequency point */
+static int pxa_verify_policy(struct cpufreq_policy *policy)
+{
+	struct cpufreq_frequency_table *pxa_freqs_table;
+	int ret;
+
+	if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) {
+		pxa_freqs_table = pxa255_run_freq_table;
+	} else if (policy->policy == CPUFREQ_POLICY_POWERSAVE) {
+		pxa_freqs_table = pxa255_turbo_freq_table;
+	} else {
+		printk("CPU PXA: Unknown policy found. "
+		       "Using CPUFREQ_POLICY_PERFORMANCE\n");
+		pxa_freqs_table = pxa255_run_freq_table;
+	}
+
+	ret = cpufreq_frequency_table_verify(policy, pxa_freqs_table);
+
+	if (freq_debug)
+		pr_debug("Verified CPU policy: %dKhz min to %dKhz max\n",
+		       policy->min, policy->max);
+
+	return ret;
+}
+
+static int pxa_set_target(struct cpufreq_policy *policy,
+			   unsigned int target_freq,
+			   unsigned int relation)
+{
+	struct cpufreq_frequency_table *pxa_freqs_table;
+	pxa_freqs_t *pxa_freq_settings;
+	struct cpufreq_freqs freqs;
+	int idx;
+	unsigned long flags;
+	unsigned int unused, preset_mdrefr, postset_mdrefr;
+	void *ramstart = phys_to_virt(0xa0000000);
+
+	/* Get the current policy */
+	if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) {
+		pxa_freq_settings = pxa255_run_freqs;
+		pxa_freqs_table   = pxa255_run_freq_table;
+	} else if (policy->policy == CPUFREQ_POLICY_POWERSAVE) {
+		pxa_freq_settings = pxa255_turbo_freqs;
+		pxa_freqs_table   = pxa255_turbo_freq_table;
+	} else {
+		printk("CPU PXA: Unknown policy found. "
+		       "Using CPUFREQ_POLICY_PERFORMANCE\n");
+		pxa_freq_settings = pxa255_run_freqs;
+		pxa_freqs_table   = pxa255_run_freq_table;
+	}
+
+	/* Lookup the next frequency */
+	if (cpufreq_frequency_table_target(policy, pxa_freqs_table,
+	                                   target_freq, relation, &idx)) {
+		return -EINVAL;
+	}
+
+	freqs.old = policy->cur;
+	freqs.new = pxa_freq_settings[idx].khz;
+	freqs.cpu = policy->cpu;
+
+	if (freq_debug)
+		pr_debug(KERN_INFO "Changing CPU frequency to %d Mhz, (SDRAM %d Mhz)\n",
+		       freqs.new / 1000, (pxa_freq_settings[idx].div2) ?
+		       (pxa_freq_settings[idx].membus / 2000) :
+		       (pxa_freq_settings[idx].membus / 1000));
+
+	/*
+	 * Tell everyone what we're about to do...
+	 * you should add a notify client with any platform specific
+	 * Vcc changing capability
+	 */
+	cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+
+	/* Calculate the next MDREFR.  If we're slowing down the SDRAM clock
+	 * we need to preset the smaller DRI before the change.  If we're speeding
+	 * up we need to set the larger DRI value after the change.
+	 */
+	preset_mdrefr = postset_mdrefr = MDREFR;
+	if ((MDREFR & MDREFR_DRI_MASK) > MDREFR_DRI(pxa_freq_settings[idx].membus)) {
+		preset_mdrefr = (preset_mdrefr & ~MDREFR_DRI_MASK) |
+		                MDREFR_DRI(pxa_freq_settings[idx].membus);
+	}
+	postset_mdrefr = (postset_mdrefr & ~MDREFR_DRI_MASK) |
+		            MDREFR_DRI(pxa_freq_settings[idx].membus);
+
+	/* If we're dividing the memory clock by two for the SDRAM clock, this
+	 * must be set prior to the change.  Clearing the divide must be done
+	 * after the change.
+	 */
+	if (pxa_freq_settings[idx].div2) {
+		preset_mdrefr  |= MDREFR_DB2_MASK;
+		postset_mdrefr |= MDREFR_DB2_MASK;
+	} else {
+		postset_mdrefr &= ~MDREFR_DB2_MASK;
+	}
+
+	local_irq_save(flags);
+
+	/* Set new the CCCR */
+	CCCR = pxa_freq_settings[idx].cccr;
+
+	asm volatile("							\n\
+		ldr	r4, [%1]		/* load MDREFR */	\n\
+		b	2f						\n\
+		.align	5 						\n\
+1:									\n\
+		str	%4, [%1]		/* preset the MDREFR */	\n\
+		mcr	p14, 0, %2, c6, c0, 0	/* set CCLKCFG[FCS] */	\n\
+		str	%5, [%1]		/* postset the MDREFR */ \n\
+									\n\
+		b	3f						\n\
+2:		b	1b						\n\
+3:		nop							\n\
+	  "
+	  : "=&r" (unused)
+	  : "r" (&MDREFR), "r" (CCLKCFG_TURBO|CCLKCFG_FCS), "r" (ramstart),
+	    "r" (preset_mdrefr), "r" (postset_mdrefr)
+	  : "r4", "r5");
+	local_irq_restore(flags);
+
+	/*
+	 * Tell everyone what we've just done...
+	 * you should add a notify client with any platform specific
+	 * SDRAM refresh timer adjustments
+	 */
+	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+
+	return 0;
+}
+
+static int pxa_cpufreq_init(struct cpufreq_policy *policy)
+{
+	int i;
+
+	/* set default policy and cpuinfo */
+	policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
+	policy->policy = CPUFREQ_POLICY_PERFORMANCE;
+	policy->cpuinfo.max_freq = PXA25x_MAX_FREQ;
+	policy->cpuinfo.min_freq = PXA25x_MIN_FREQ;
+	policy->cpuinfo.transition_latency = 1000; /* FIXME: 1 ms, assumed */
+	policy->cur = get_clk_frequency_khz(0);    /* current freq */
+	policy->min = policy->max = policy->cur;
+
+	/* Generate the run cpufreq_frequency_table struct */
+	for (i = 0; i < NUM_RUN_FREQS; i++) {
+		pxa255_run_freq_table[i].frequency = pxa255_run_freqs[i].khz;
+		pxa255_run_freq_table[i].index = i;
+	}
+
+	pxa255_run_freq_table[i].frequency = CPUFREQ_TABLE_END;
+	/* Generate the turbo cpufreq_frequency_table struct */
+	for (i = 0; i < NUM_TURBO_FREQS; i++) {
+		pxa255_turbo_freq_table[i].frequency = pxa255_turbo_freqs[i].khz;
+		pxa255_turbo_freq_table[i].index = i;
+	}
+	pxa255_turbo_freq_table[i].frequency = CPUFREQ_TABLE_END;
+
+	printk(KERN_INFO "PXA CPU frequency change support initialized\n");
+
+	return 0;
+}
+
+static struct cpufreq_driver pxa_cpufreq_driver = {
+	.verify	= pxa_verify_policy,
+	.target	= pxa_set_target,
+	.init	= pxa_cpufreq_init,
+	.name	= "PXA25x",
+};
+
+static int __init pxa_cpu_init(void)
+{
+	int ret = -ENODEV;
+	if (cpu_is_pxa25x())
+		ret = cpufreq_register_driver(&pxa_cpufreq_driver);
+	return ret;
+}
+
+static void __exit pxa_cpu_exit(void)
+{
+	if (cpu_is_pxa25x())
+		cpufreq_unregister_driver(&pxa_cpufreq_driver);
+}
+
+
+MODULE_AUTHOR ("Intrinsyc Software Inc.");
+MODULE_DESCRIPTION ("CPU frequency changing driver for the PXA architecture");
+MODULE_LICENSE("GPL");
+module_init(pxa_cpu_init);
+module_exit(pxa_cpu_exit);
-- 
cgit v1.2.3-59-g8ed1b


From 9a788c6b78802b4a378be3f0d4c2da30da811620 Mon Sep 17 00:00:00 2001
From: Bridge Wu <bridge.wu@marvell.com>
Date: Fri, 14 Dec 2007 10:40:25 +0100
Subject: [ARM] 4711/1: pxa: mmc: move DMA specific code to platform layer

This patch is to move pxamci DMA specific code to corresponding
platform layer because using DRCMRRXMMC/DRCMRTXMMC in pxamci.c makes
the driver code dedicated to platform which is not extensible.

It is applicable to all pxa platforms.

Signed-off-by: Bridge Wu <bridge.wu@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/generic.c | 10 ++++++++++
 drivers/mmc/host/pxamci.c   | 30 +++++++++++++++++++++++-------
 2 files changed, 33 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
index 8bb70e70131e..a8d88704c8d4 100644
--- a/arch/arm/mach-pxa/generic.c
+++ b/arch/arm/mach-pxa/generic.c
@@ -259,6 +259,16 @@ static struct resource pxamci_resources[] = {
 		.end	= IRQ_MMC,
 		.flags	= IORESOURCE_IRQ,
 	},
+	[2] = {
+		.start	= 21,
+		.end	= 21,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= 22,
+		.end	= 22,
+		.flags	= IORESOURCE_DMA,
+	},
 };
 
 static u64 pxamci_dmamask = 0xffffffffUL;
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index 80df4b047c81..1ea8482037bb 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -65,6 +65,8 @@ struct pxamci_host {
 	unsigned int		dma_len;
 
 	unsigned int		dma_dir;
+	unsigned int		dma_drcmrrx;
+	unsigned int		dma_drcmrtx;
 };
 
 static void pxamci_stop_clock(struct pxamci_host *host)
@@ -131,13 +133,13 @@ static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data)
 	if (data->flags & MMC_DATA_READ) {
 		host->dma_dir = DMA_FROM_DEVICE;
 		dcmd = DCMD_INCTRGADDR | DCMD_FLOWTRG;
-		DRCMRTXMMC = 0;
-		DRCMRRXMMC = host->dma | DRCMR_MAPVLD;
+		DRCMR(host->dma_drcmrtx) = 0;
+		DRCMR(host->dma_drcmrrx) = host->dma | DRCMR_MAPVLD;
 	} else {
 		host->dma_dir = DMA_TO_DEVICE;
 		dcmd = DCMD_INCSRCADDR | DCMD_FLOWSRC;
-		DRCMRRXMMC = 0;
-		DRCMRTXMMC = host->dma | DRCMR_MAPVLD;
+		DRCMR(host->dma_drcmrrx) = 0;
+		DRCMR(host->dma_drcmrtx) = host->dma | DRCMR_MAPVLD;
 	}
 
 	dcmd |= DCMD_BURST32 | DCMD_WIDTH1;
@@ -468,7 +470,7 @@ static int pxamci_probe(struct platform_device *pdev)
 {
 	struct mmc_host *mmc;
 	struct pxamci_host *host = NULL;
-	struct resource *r;
+	struct resource *r, *dmarx, *dmatx;
 	int ret, irq;
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -583,6 +585,20 @@ static int pxamci_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, mmc);
 
+	dmarx = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+	if (!dmarx) {
+		ret = -ENXIO;
+		goto out;
+	}
+	host->dma_drcmrrx = dmarx->start;
+
+	dmatx = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+	if (!dmatx) {
+		ret = -ENXIO;
+		goto out;
+	}
+	host->dma_drcmrtx = dmatx->start;
+
 	if (host->pdata && host->pdata->init)
 		host->pdata->init(&pdev->dev, pxamci_detect_irq, mmc);
 
@@ -626,8 +642,8 @@ static int pxamci_remove(struct platform_device *pdev)
 		       END_CMD_RES|PRG_DONE|DATA_TRAN_DONE,
 		       host->base + MMC_I_MASK);
 
-		DRCMRRXMMC = 0;
-		DRCMRTXMMC = 0;
+		DRCMR(host->dma_drcmrrx) = 0;
+		DRCMR(host->dma_drcmrtx) = 0;
 
 		free_irq(host->irq, host);
 		pxa_free_dma(host->dma);
-- 
cgit v1.2.3-59-g8ed1b


From 8f58de7c3932f659fff3b4e5fc14ca8ccf8ec873 Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Wed, 19 Dec 2007 17:14:02 +0800
Subject: [ARM] pxa: create arch/arm/mach-pxa/device.c for all on-chip devices

Considering that generic.c is getting more and more bloated by device
information, moving that part out side will be much cleaner.

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/Makefile  |   2 +-
 arch/arm/mach-pxa/devices.c | 552 ++++++++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-pxa/generic.c | 548 -------------------------------------------
 3 files changed, 553 insertions(+), 549 deletions(-)
 create mode 100644 arch/arm/mach-pxa/devices.c

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 3133dc4eaa7e..db18c8de7d55 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -3,7 +3,7 @@
 #
 
 # Common support (must be linked before board specific support)
-obj-y				+= clock.o generic.o irq.o dma.o time.o
+obj-y				+= clock.o devices.o generic.o irq.o dma.o time.o
 obj-$(CONFIG_PXA25x)		+= pxa25x.o
 obj-$(CONFIG_PXA27x)		+= pxa27x.o
 obj-$(CONFIG_PXA3xx)		+= pxa3xx.o mfp.o
diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
new file mode 100644
index 000000000000..75949eb3b7bd
--- /dev/null
+++ b/arch/arm/mach-pxa/devices.c
@@ -0,0 +1,552 @@
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/arch/gpio.h>
+#include <asm/arch/udc.h>
+#include <asm/arch/pxafb.h>
+#include <asm/arch/mmc.h>
+#include <asm/arch/irda.h>
+#include <asm/arch/i2c.h>
+
+#include "devices.h"
+
+void __init pxa_register_device(struct platform_device *dev, void *data)
+{
+	int ret;
+
+	dev->dev.platform_data = data;
+
+	ret = platform_device_register(dev);
+	if (ret)
+		dev_err(&dev->dev, "unable to register device: %d\n", ret);
+}
+
+static struct resource pxamci_resources[] = {
+	[0] = {
+		.start	= 0x41100000,
+		.end	= 0x41100fff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_MMC,
+		.end	= IRQ_MMC,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= 21,
+		.end	= 21,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= 22,
+		.end	= 22,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static u64 pxamci_dmamask = 0xffffffffUL;
+
+struct platform_device pxa_device_mci = {
+	.name		= "pxa2xx-mci",
+	.id		= -1,
+	.dev		= {
+		.dma_mask = &pxamci_dmamask,
+		.coherent_dma_mask = 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(pxamci_resources),
+	.resource	= pxamci_resources,
+};
+
+void __init pxa_set_mci_info(struct pxamci_platform_data *info)
+{
+	pxa_register_device(&pxa_device_mci, info);
+}
+
+
+static struct pxa2xx_udc_mach_info pxa_udc_info;
+
+void __init pxa_set_udc_info(struct pxa2xx_udc_mach_info *info)
+{
+	memcpy(&pxa_udc_info, info, sizeof *info);
+}
+
+static struct resource pxa2xx_udc_resources[] = {
+	[0] = {
+		.start	= 0x40600000,
+		.end	= 0x4060ffff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_USB,
+		.end	= IRQ_USB,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static u64 udc_dma_mask = ~(u32)0;
+
+struct platform_device pxa_device_udc = {
+	.name		= "pxa2xx-udc",
+	.id		= -1,
+	.resource	= pxa2xx_udc_resources,
+	.num_resources	= ARRAY_SIZE(pxa2xx_udc_resources),
+	.dev		=  {
+		.platform_data	= &pxa_udc_info,
+		.dma_mask	= &udc_dma_mask,
+	}
+};
+
+static struct resource pxafb_resources[] = {
+	[0] = {
+		.start	= 0x44000000,
+		.end	= 0x4400ffff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_LCD,
+		.end	= IRQ_LCD,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static u64 fb_dma_mask = ~(u64)0;
+
+struct platform_device pxa_device_fb = {
+	.name		= "pxa2xx-fb",
+	.id		= -1,
+	.dev		= {
+		.dma_mask	= &fb_dma_mask,
+		.coherent_dma_mask = 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(pxafb_resources),
+	.resource	= pxafb_resources,
+};
+
+void __init set_pxa_fb_info(struct pxafb_mach_info *info)
+{
+	pxa_register_device(&pxa_device_fb, info);
+}
+
+void __init set_pxa_fb_parent(struct device *parent_dev)
+{
+	pxa_device_fb.dev.parent = parent_dev;
+}
+
+static struct resource pxa_resource_ffuart[] = {
+	{
+		.start	= __PREG(FFUART),
+		.end	= __PREG(FFUART) + 35,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_FFUART,
+		.end	= IRQ_FFUART,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+struct platform_device pxa_device_ffuart= {
+	.name		= "pxa2xx-uart",
+	.id		= 0,
+	.resource	= pxa_resource_ffuart,
+	.num_resources	= ARRAY_SIZE(pxa_resource_ffuart),
+};
+
+static struct resource pxa_resource_btuart[] = {
+	{
+		.start	= __PREG(BTUART),
+		.end	= __PREG(BTUART) + 35,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_BTUART,
+		.end	= IRQ_BTUART,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+struct platform_device pxa_device_btuart = {
+	.name		= "pxa2xx-uart",
+	.id		= 1,
+	.resource	= pxa_resource_btuart,
+	.num_resources	= ARRAY_SIZE(pxa_resource_btuart),
+};
+
+static struct resource pxa_resource_stuart[] = {
+	{
+		.start	= __PREG(STUART),
+		.end	= __PREG(STUART) + 35,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_STUART,
+		.end	= IRQ_STUART,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+struct platform_device pxa_device_stuart = {
+	.name		= "pxa2xx-uart",
+	.id		= 2,
+	.resource	= pxa_resource_stuart,
+	.num_resources	= ARRAY_SIZE(pxa_resource_stuart),
+};
+
+static struct resource pxa_resource_hwuart[] = {
+	{
+		.start	= __PREG(HWUART),
+		.end	= __PREG(HWUART) + 47,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_HWUART,
+		.end	= IRQ_HWUART,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+struct platform_device pxa_device_hwuart = {
+	.name		= "pxa2xx-uart",
+	.id		= 3,
+	.resource	= pxa_resource_hwuart,
+	.num_resources	= ARRAY_SIZE(pxa_resource_hwuart),
+};
+
+static struct resource pxai2c_resources[] = {
+	{
+		.start	= 0x40301680,
+		.end	= 0x403016a3,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_I2C,
+		.end	= IRQ_I2C,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device pxa_device_i2c = {
+	.name		= "pxa2xx-i2c",
+	.id		= 0,
+	.resource	= pxai2c_resources,
+	.num_resources	= ARRAY_SIZE(pxai2c_resources),
+};
+
+void __init pxa_set_i2c_info(struct i2c_pxa_platform_data *info)
+{
+	pxa_register_device(&pxa_device_i2c, info);
+}
+
+static struct resource pxai2s_resources[] = {
+	{
+		.start	= 0x40400000,
+		.end	= 0x40400083,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_I2S,
+		.end	= IRQ_I2S,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device pxa_device_i2s = {
+	.name		= "pxa2xx-i2s",
+	.id		= -1,
+	.resource	= pxai2s_resources,
+	.num_resources	= ARRAY_SIZE(pxai2s_resources),
+};
+
+static u64 pxaficp_dmamask = ~(u32)0;
+
+struct platform_device pxa_device_ficp = {
+	.name		= "pxa2xx-ir",
+	.id		= -1,
+	.dev		= {
+		.dma_mask = &pxaficp_dmamask,
+		.coherent_dma_mask = 0xffffffff,
+	},
+};
+
+void __init pxa_set_ficp_info(struct pxaficp_platform_data *info)
+{
+	pxa_register_device(&pxa_device_ficp, info);
+}
+
+struct platform_device pxa_device_rtc = {
+	.name		= "sa1100-rtc",
+	.id		= -1,
+};
+
+#ifdef CONFIG_PXA25x
+
+static u64 pxa25x_ssp_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa25x_resource_ssp[] = {
+	[0] = {
+		.start	= 0x41000000,
+		.end	= 0x4100001f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_SSP,
+		.end	= IRQ_SSP,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 13,
+		.end	= 13,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 14,
+		.end	= 14,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa25x_device_ssp = {
+	.name		= "pxa25x-ssp",
+	.id		= 0,
+	.dev		= {
+		.dma_mask = &pxa25x_ssp_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa25x_resource_ssp,
+	.num_resources	= ARRAY_SIZE(pxa25x_resource_ssp),
+};
+
+static u64 pxa25x_nssp_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa25x_resource_nssp[] = {
+	[0] = {
+		.start	= 0x41400000,
+		.end	= 0x4140002f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_NSSP,
+		.end	= IRQ_NSSP,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 15,
+		.end	= 15,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 16,
+		.end	= 16,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa25x_device_nssp = {
+	.name		= "pxa25x-nssp",
+	.id		= 1,
+	.dev		= {
+		.dma_mask = &pxa25x_nssp_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa25x_resource_nssp,
+	.num_resources	= ARRAY_SIZE(pxa25x_resource_nssp),
+};
+
+static u64 pxa25x_assp_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa25x_resource_assp[] = {
+	[0] = {
+		.start	= 0x41500000,
+		.end	= 0x4150002f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_ASSP,
+		.end	= IRQ_ASSP,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 23,
+		.end	= 23,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 24,
+		.end	= 24,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa25x_device_assp = {
+	/* ASSP is basically equivalent to NSSP */
+	.name		= "pxa25x-nssp",
+	.id		= 2,
+	.dev		= {
+		.dma_mask = &pxa25x_assp_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa25x_resource_assp,
+	.num_resources	= ARRAY_SIZE(pxa25x_resource_assp),
+};
+#endif /* CONFIG_PXA25x */
+
+#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
+
+static u64 pxa27x_ssp1_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa27x_resource_ssp1[] = {
+	[0] = {
+		.start	= 0x41000000,
+		.end	= 0x4100003f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_SSP,
+		.end	= IRQ_SSP,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 13,
+		.end	= 13,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 14,
+		.end	= 14,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa27x_device_ssp1 = {
+	.name		= "pxa27x-ssp",
+	.id		= 0,
+	.dev		= {
+		.dma_mask = &pxa27x_ssp1_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa27x_resource_ssp1,
+	.num_resources	= ARRAY_SIZE(pxa27x_resource_ssp1),
+};
+
+static u64 pxa27x_ssp2_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa27x_resource_ssp2[] = {
+	[0] = {
+		.start	= 0x41700000,
+		.end	= 0x4170003f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_SSP2,
+		.end	= IRQ_SSP2,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 15,
+		.end	= 15,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 16,
+		.end	= 16,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa27x_device_ssp2 = {
+	.name		= "pxa27x-ssp",
+	.id		= 1,
+	.dev		= {
+		.dma_mask = &pxa27x_ssp2_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa27x_resource_ssp2,
+	.num_resources	= ARRAY_SIZE(pxa27x_resource_ssp2),
+};
+
+static u64 pxa27x_ssp3_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa27x_resource_ssp3[] = {
+	[0] = {
+		.start	= 0x41900000,
+		.end	= 0x4190003f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_SSP3,
+		.end	= IRQ_SSP3,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 66,
+		.end	= 66,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 67,
+		.end	= 67,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa27x_device_ssp3 = {
+	.name		= "pxa27x-ssp",
+	.id		= 2,
+	.dev		= {
+		.dma_mask = &pxa27x_ssp3_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa27x_resource_ssp3,
+	.num_resources	= ARRAY_SIZE(pxa27x_resource_ssp3),
+};
+#endif /* CONFIG_PXA27x || CONFIG_PXA3xx */
+
+#ifdef CONFIG_PXA3xx
+static u64 pxa3xx_ssp4_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa3xx_resource_ssp4[] = {
+	[0] = {
+		.start	= 0x41a00000,
+		.end	= 0x41a0003f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_SSP4,
+		.end	= IRQ_SSP4,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* DRCMR for RX */
+		.start	= 2,
+		.end	= 2,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		/* DRCMR for TX */
+		.start	= 3,
+		.end	= 3,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa3xx_device_ssp4 = {
+	/* PXA3xx SSP is basically equivalent to PXA27x */
+	.name		= "pxa27x-ssp",
+	.id		= 3,
+	.dev		= {
+		.dma_mask = &pxa3xx_ssp4_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource	= pxa3xx_resource_ssp4,
+	.num_resources	= ARRAY_SIZE(pxa3xx_resource_ssp4),
+};
+#endif /* CONFIG_PXA3xx */
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
index a8d88704c8d4..e4dbdbc2fb15 100644
--- a/arch/arm/mach-pxa/generic.c
+++ b/arch/arm/mach-pxa/generic.c
@@ -20,11 +20,9 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
-#include <linux/platform_device.h>
 #include <linux/ioport.h>
 #include <linux/pm.h>
 #include <linux/string.h>
-#include <linux/dma-mapping.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>
@@ -34,13 +32,7 @@
 
 #include <asm/arch/pxa-regs.h>
 #include <asm/arch/gpio.h>
-#include <asm/arch/udc.h>
-#include <asm/arch/pxafb.h>
-#include <asm/arch/mmc.h>
-#include <asm/arch/irda.h>
-#include <asm/arch/i2c.h>
 
-#include "devices.h"
 #include "generic.h"
 
 /*
@@ -234,543 +226,3 @@ void __init pxa_map_io(void)
 	iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
 	get_clk_frequency_khz(1);
 }
-
-
-void __init pxa_register_device(struct platform_device *dev, void *data)
-{
-	int ret;
-
-	dev->dev.platform_data = data;
-
-	ret = platform_device_register(dev);
-	if (ret)
-		dev_err(&dev->dev, "unable to register device: %d\n", ret);
-}
-
-
-static struct resource pxamci_resources[] = {
-	[0] = {
-		.start	= 0x41100000,
-		.end	= 0x41100fff,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= IRQ_MMC,
-		.end	= IRQ_MMC,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= 21,
-		.end	= 21,
-		.flags	= IORESOURCE_DMA,
-	},
-	[3] = {
-		.start	= 22,
-		.end	= 22,
-		.flags	= IORESOURCE_DMA,
-	},
-};
-
-static u64 pxamci_dmamask = 0xffffffffUL;
-
-struct platform_device pxa_device_mci = {
-	.name		= "pxa2xx-mci",
-	.id		= -1,
-	.dev		= {
-		.dma_mask = &pxamci_dmamask,
-		.coherent_dma_mask = 0xffffffff,
-	},
-	.num_resources	= ARRAY_SIZE(pxamci_resources),
-	.resource	= pxamci_resources,
-};
-
-void __init pxa_set_mci_info(struct pxamci_platform_data *info)
-{
-	pxa_register_device(&pxa_device_mci, info);
-}
-
-
-static struct pxa2xx_udc_mach_info pxa_udc_info;
-
-void __init pxa_set_udc_info(struct pxa2xx_udc_mach_info *info)
-{
-	memcpy(&pxa_udc_info, info, sizeof *info);
-}
-
-static struct resource pxa2xx_udc_resources[] = {
-	[0] = {
-		.start	= 0x40600000,
-		.end	= 0x4060ffff,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= IRQ_USB,
-		.end	= IRQ_USB,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static u64 udc_dma_mask = ~(u32)0;
-
-struct platform_device pxa_device_udc = {
-	.name		= "pxa2xx-udc",
-	.id		= -1,
-	.resource	= pxa2xx_udc_resources,
-	.num_resources	= ARRAY_SIZE(pxa2xx_udc_resources),
-	.dev		=  {
-		.platform_data	= &pxa_udc_info,
-		.dma_mask	= &udc_dma_mask,
-	}
-};
-
-static struct resource pxafb_resources[] = {
-	[0] = {
-		.start	= 0x44000000,
-		.end	= 0x4400ffff,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= IRQ_LCD,
-		.end	= IRQ_LCD,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static u64 fb_dma_mask = ~(u64)0;
-
-struct platform_device pxa_device_fb = {
-	.name		= "pxa2xx-fb",
-	.id		= -1,
-	.dev		= {
-		.dma_mask	= &fb_dma_mask,
-		.coherent_dma_mask = 0xffffffff,
-	},
-	.num_resources	= ARRAY_SIZE(pxafb_resources),
-	.resource	= pxafb_resources,
-};
-
-void __init set_pxa_fb_info(struct pxafb_mach_info *info)
-{
-	pxa_register_device(&pxa_device_fb, info);
-}
-
-void __init set_pxa_fb_parent(struct device *parent_dev)
-{
-	pxa_device_fb.dev.parent = parent_dev;
-}
-
-static struct resource pxa_resource_ffuart[] = {
-	{
-		.start	= __PREG(FFUART),
-		.end	= __PREG(FFUART) + 35,
-		.flags	= IORESOURCE_MEM,
-	}, {
-		.start	= IRQ_FFUART,
-		.end	= IRQ_FFUART,
-		.flags	= IORESOURCE_IRQ,
-	}
-};
-
-struct platform_device pxa_device_ffuart= {
-	.name		= "pxa2xx-uart",
-	.id		= 0,
-	.resource	= pxa_resource_ffuart,
-	.num_resources	= ARRAY_SIZE(pxa_resource_ffuart),
-};
-
-static struct resource pxa_resource_btuart[] = {
-	{
-		.start	= __PREG(BTUART),
-		.end	= __PREG(BTUART) + 35,
-		.flags	= IORESOURCE_MEM,
-	}, {
-		.start	= IRQ_BTUART,
-		.end	= IRQ_BTUART,
-		.flags	= IORESOURCE_IRQ,
-	}
-};
-
-struct platform_device pxa_device_btuart = {
-	.name		= "pxa2xx-uart",
-	.id		= 1,
-	.resource	= pxa_resource_btuart,
-	.num_resources	= ARRAY_SIZE(pxa_resource_btuart),
-};
-
-static struct resource pxa_resource_stuart[] = {
-	{
-		.start	= __PREG(STUART),
-		.end	= __PREG(STUART) + 35,
-		.flags	= IORESOURCE_MEM,
-	}, {
-		.start	= IRQ_STUART,
-		.end	= IRQ_STUART,
-		.flags	= IORESOURCE_IRQ,
-	}
-};
-
-struct platform_device pxa_device_stuart = {
-	.name		= "pxa2xx-uart",
-	.id		= 2,
-	.resource	= pxa_resource_stuart,
-	.num_resources	= ARRAY_SIZE(pxa_resource_stuart),
-};
-
-static struct resource pxa_resource_hwuart[] = {
-	{
-		.start	= __PREG(HWUART),
-		.end	= __PREG(HWUART) + 47,
-		.flags	= IORESOURCE_MEM,
-	}, {
-		.start	= IRQ_HWUART,
-		.end	= IRQ_HWUART,
-		.flags	= IORESOURCE_IRQ,
-	}
-};
-
-struct platform_device pxa_device_hwuart = {
-	.name		= "pxa2xx-uart",
-	.id		= 3,
-	.resource	= pxa_resource_hwuart,
-	.num_resources	= ARRAY_SIZE(pxa_resource_hwuart),
-};
-
-static struct resource pxai2c_resources[] = {
-	{
-		.start	= 0x40301680,
-		.end	= 0x403016a3,
-		.flags	= IORESOURCE_MEM,
-	}, {
-		.start	= IRQ_I2C,
-		.end	= IRQ_I2C,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device pxa_device_i2c = {
-	.name		= "pxa2xx-i2c",
-	.id		= 0,
-	.resource	= pxai2c_resources,
-	.num_resources	= ARRAY_SIZE(pxai2c_resources),
-};
-
-void __init pxa_set_i2c_info(struct i2c_pxa_platform_data *info)
-{
-	pxa_register_device(&pxa_device_i2c, info);
-}
-
-static struct resource pxai2s_resources[] = {
-	{
-		.start	= 0x40400000,
-		.end	= 0x40400083,
-		.flags	= IORESOURCE_MEM,
-	}, {
-		.start	= IRQ_I2S,
-		.end	= IRQ_I2S,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device pxa_device_i2s = {
-	.name		= "pxa2xx-i2s",
-	.id		= -1,
-	.resource	= pxai2s_resources,
-	.num_resources	= ARRAY_SIZE(pxai2s_resources),
-};
-
-static u64 pxaficp_dmamask = ~(u32)0;
-
-struct platform_device pxa_device_ficp = {
-	.name		= "pxa2xx-ir",
-	.id		= -1,
-	.dev		= {
-		.dma_mask = &pxaficp_dmamask,
-		.coherent_dma_mask = 0xffffffff,
-	},
-};
-
-void __init pxa_set_ficp_info(struct pxaficp_platform_data *info)
-{
-	pxa_register_device(&pxa_device_ficp, info);
-}
-
-struct platform_device pxa_device_rtc = {
-	.name		= "sa1100-rtc",
-	.id		= -1,
-};
-
-#ifdef CONFIG_PXA25x
-
-static u64 pxa25x_ssp_dma_mask = DMA_BIT_MASK(32);
-
-static struct resource pxa25x_resource_ssp[] = {
-	[0] = {
-		.start	= 0x41000000,
-		.end	= 0x4100001f,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= IRQ_SSP,
-		.end	= IRQ_SSP,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		/* DRCMR for RX */
-		.start	= 13,
-		.end	= 13,
-		.flags	= IORESOURCE_DMA,
-	},
-	[3] = {
-		/* DRCMR for TX */
-		.start	= 14,
-		.end	= 14,
-		.flags	= IORESOURCE_DMA,
-	},
-};
-
-struct platform_device pxa25x_device_ssp = {
-	.name		= "pxa25x-ssp",
-	.id		= 0,
-	.dev		= {
-		.dma_mask = &pxa25x_ssp_dma_mask,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-	.resource	= pxa25x_resource_ssp,
-	.num_resources	= ARRAY_SIZE(pxa25x_resource_ssp),
-};
-
-static u64 pxa25x_nssp_dma_mask = DMA_BIT_MASK(32);
-
-static struct resource pxa25x_resource_nssp[] = {
-	[0] = {
-		.start	= 0x41400000,
-		.end	= 0x4140002f,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= IRQ_NSSP,
-		.end	= IRQ_NSSP,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		/* DRCMR for RX */
-		.start	= 15,
-		.end	= 15,
-		.flags	= IORESOURCE_DMA,
-	},
-	[3] = {
-		/* DRCMR for TX */
-		.start	= 16,
-		.end	= 16,
-		.flags	= IORESOURCE_DMA,
-	},
-};
-
-struct platform_device pxa25x_device_nssp = {
-	.name		= "pxa25x-nssp",
-	.id		= 1,
-	.dev		= {
-		.dma_mask = &pxa25x_nssp_dma_mask,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-	.resource	= pxa25x_resource_nssp,
-	.num_resources	= ARRAY_SIZE(pxa25x_resource_nssp),
-};
-
-static u64 pxa25x_assp_dma_mask = DMA_BIT_MASK(32);
-
-static struct resource pxa25x_resource_assp[] = {
-	[0] = {
-		.start	= 0x41500000,
-		.end	= 0x4150002f,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= IRQ_ASSP,
-		.end	= IRQ_ASSP,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		/* DRCMR for RX */
-		.start	= 23,
-		.end	= 23,
-		.flags	= IORESOURCE_DMA,
-	},
-	[3] = {
-		/* DRCMR for TX */
-		.start	= 24,
-		.end	= 24,
-		.flags	= IORESOURCE_DMA,
-	},
-};
-
-struct platform_device pxa25x_device_assp = {
-	/* ASSP is basically equivalent to NSSP */
-	.name		= "pxa25x-nssp",
-	.id		= 2,
-	.dev		= {
-		.dma_mask = &pxa25x_assp_dma_mask,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-	.resource	= pxa25x_resource_assp,
-	.num_resources	= ARRAY_SIZE(pxa25x_resource_assp),
-};
-#endif /* CONFIG_PXA25x */
-
-#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
-
-static u64 pxa27x_ssp1_dma_mask = DMA_BIT_MASK(32);
-
-static struct resource pxa27x_resource_ssp1[] = {
-	[0] = {
-		.start	= 0x41000000,
-		.end	= 0x4100003f,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= IRQ_SSP,
-		.end	= IRQ_SSP,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		/* DRCMR for RX */
-		.start	= 13,
-		.end	= 13,
-		.flags	= IORESOURCE_DMA,
-	},
-	[3] = {
-		/* DRCMR for TX */
-		.start	= 14,
-		.end	= 14,
-		.flags	= IORESOURCE_DMA,
-	},
-};
-
-struct platform_device pxa27x_device_ssp1 = {
-	.name		= "pxa27x-ssp",
-	.id		= 0,
-	.dev		= {
-		.dma_mask = &pxa27x_ssp1_dma_mask,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-	.resource	= pxa27x_resource_ssp1,
-	.num_resources	= ARRAY_SIZE(pxa27x_resource_ssp1),
-};
-
-static u64 pxa27x_ssp2_dma_mask = DMA_BIT_MASK(32);
-
-static struct resource pxa27x_resource_ssp2[] = {
-	[0] = {
-		.start	= 0x41700000,
-		.end	= 0x4170003f,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= IRQ_SSP2,
-		.end	= IRQ_SSP2,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		/* DRCMR for RX */
-		.start	= 15,
-		.end	= 15,
-		.flags	= IORESOURCE_DMA,
-	},
-	[3] = {
-		/* DRCMR for TX */
-		.start	= 16,
-		.end	= 16,
-		.flags	= IORESOURCE_DMA,
-	},
-};
-
-struct platform_device pxa27x_device_ssp2 = {
-	.name		= "pxa27x-ssp",
-	.id		= 1,
-	.dev		= {
-		.dma_mask = &pxa27x_ssp2_dma_mask,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-	.resource	= pxa27x_resource_ssp2,
-	.num_resources	= ARRAY_SIZE(pxa27x_resource_ssp2),
-};
-
-static u64 pxa27x_ssp3_dma_mask = DMA_BIT_MASK(32);
-
-static struct resource pxa27x_resource_ssp3[] = {
-	[0] = {
-		.start	= 0x41900000,
-		.end	= 0x4190003f,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= IRQ_SSP3,
-		.end	= IRQ_SSP3,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		/* DRCMR for RX */
-		.start	= 66,
-		.end	= 66,
-		.flags	= IORESOURCE_DMA,
-	},
-	[3] = {
-		/* DRCMR for TX */
-		.start	= 67,
-		.end	= 67,
-		.flags	= IORESOURCE_DMA,
-	},
-};
-
-struct platform_device pxa27x_device_ssp3 = {
-	.name		= "pxa27x-ssp",
-	.id		= 2,
-	.dev		= {
-		.dma_mask = &pxa27x_ssp3_dma_mask,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-	.resource	= pxa27x_resource_ssp3,
-	.num_resources	= ARRAY_SIZE(pxa27x_resource_ssp3),
-};
-#endif /* CONFIG_PXA27x || CONFIG_PXA3xx */
-
-#ifdef CONFIG_PXA3xx
-static u64 pxa3xx_ssp4_dma_mask = DMA_BIT_MASK(32);
-
-static struct resource pxa3xx_resource_ssp4[] = {
-	[0] = {
-		.start	= 0x41a00000,
-		.end	= 0x41a0003f,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= IRQ_SSP4,
-		.end	= IRQ_SSP4,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		/* DRCMR for RX */
-		.start	= 2,
-		.end	= 2,
-		.flags	= IORESOURCE_DMA,
-	},
-	[3] = {
-		/* DRCMR for TX */
-		.start	= 3,
-		.end	= 3,
-		.flags	= IORESOURCE_DMA,
-	},
-};
-
-struct platform_device pxa3xx_device_ssp4 = {
-	/* PXA3xx SSP is basically equivalent to PXA27x */
-	.name		= "pxa27x-ssp",
-	.id		= 3,
-	.dev		= {
-		.dma_mask = &pxa3xx_ssp4_dma_mask,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-	.resource	= pxa3xx_resource_ssp4,
-	.num_resources	= ARRAY_SIZE(pxa3xx_resource_ssp4),
-};
-#endif /* CONFIG_PXA3xx */
-- 
cgit v1.2.3-59-g8ed1b


From fafc9d3fa35530c1a14e6743c477d7398b431e74 Mon Sep 17 00:00:00 2001
From: Bridge Wu <bridge.wu@marvell.com>
Date: Fri, 21 Dec 2007 19:00:13 +0800
Subject: [ARM] pxa: mmc: add 1st host controller support for pxa3xx

This patchis to add the first mmc controller support for pxa3xx.
It's valid for pxa3[0|1|2]0.

On zylonite, the first controller supports two slots, this patch
only support the first one right now.

Signed-off-by: Bridge Wu <bridge.wu@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/devices.c         |  2 +-
 arch/arm/mach-pxa/pxa3xx.c          |  2 +
 arch/arm/mach-pxa/zylonite.c        | 86 +++++++++++++++++++++++++++++++++++++
 arch/arm/mach-pxa/zylonite_pxa300.c | 13 ++++++
 arch/arm/mach-pxa/zylonite_pxa320.c | 13 ++++++
 drivers/mmc/host/pxamci.h           |  2 +-
 include/asm-arm/arch-pxa/zylonite.h |  9 ++++
 7 files changed, 125 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index 75949eb3b7bd..202d048f1cdd 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -51,7 +51,7 @@ static u64 pxamci_dmamask = 0xffffffffUL;
 
 struct platform_device pxa_device_mci = {
 	.name		= "pxa2xx-mci",
-	.id		= -1,
+	.id		= 0,
 	.dev		= {
 		.dma_mask = &pxamci_dmamask,
 		.coherent_dma_mask = 0xffffffff,
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index c0483c3261d0..6271af303cb9 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -194,6 +194,8 @@ static struct clk pxa3xx_clks[] = {
 	PXA3xx_CKEN("SSPCLK", SSP2, 13000000, 0, &pxa27x_device_ssp2.dev),
 	PXA3xx_CKEN("SSPCLK", SSP3, 13000000, 0, &pxa27x_device_ssp3.dev),
 	PXA3xx_CKEN("SSPCLK", SSP4, 13000000, 0, &pxa3xx_device_ssp4.dev),
+
+	PXA3xx_CKEN("MMCCLK", MMC1, 19500000, 0, &pxa_device_mci.dev),
 };
 
 void __init pxa3xx_init_irq(void)
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index 743a87b2faa1..f72f37f6ff0c 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -25,9 +25,13 @@
 #include <asm/arch/gpio.h>
 #include <asm/arch/pxafb.h>
 #include <asm/arch/zylonite.h>
+#include <asm/arch/mmc.h>
 
 #include "generic.h"
 
+#define MAX_SLOTS	2
+struct platform_mmc_slot zylonite_mmc_slot[MAX_SLOTS];
+
 int gpio_backlight;
 int gpio_eth_irq;
 
@@ -156,6 +160,87 @@ static void __init zylonite_init_lcd(void)
 static inline void zylonite_init_lcd(void) {}
 #endif
 
+#if defined(CONFIG_MMC)
+static int zylonite_mci_ro(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+
+	return gpio_get_value(zylonite_mmc_slot[pdev->id].gpio_wp);
+}
+
+static int zylonite_mci_init(struct device *dev,
+			     irq_handler_t zylonite_detect_int,
+			     void *data)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	int err, cd_irq, gpio_cd, gpio_wp;
+
+	cd_irq = gpio_to_irq(zylonite_mmc_slot[pdev->id].gpio_cd);
+	gpio_cd = zylonite_mmc_slot[pdev->id].gpio_cd;
+	gpio_wp = zylonite_mmc_slot[pdev->id].gpio_wp;
+
+	/*
+	 * setup GPIO for Zylonite MMC controller
+	 */
+	err = gpio_request(gpio_cd, "mmc card detect");
+	if (err)
+		goto err_request_cd;
+	gpio_direction_input(gpio_cd);
+
+	err = gpio_request(gpio_wp, "mmc write protect");
+	if (err)
+		goto err_request_wp;
+	gpio_direction_input(gpio_wp);
+
+	err = request_irq(cd_irq, zylonite_detect_int,
+			  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+			  "MMC card detect", data);
+	if (err) {
+		printk(KERN_ERR "%s: MMC/SD/SDIO: "
+				"can't request card detect IRQ\n", __func__);
+		goto err_request_irq;
+	}
+
+	return 0;
+
+err_request_irq:
+	gpio_free(gpio_wp);
+err_request_wp:
+	gpio_free(gpio_cd);
+err_request_cd:
+	return err;
+}
+
+static void zylonite_mci_exit(struct device *dev, void *data)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	int cd_irq, gpio_cd, gpio_wp;
+
+	cd_irq = gpio_to_irq(zylonite_mmc_slot[pdev->id].gpio_cd);
+	gpio_cd = zylonite_mmc_slot[pdev->id].gpio_cd;
+	gpio_wp = zylonite_mmc_slot[pdev->id].gpio_wp;
+
+	free_irq(cd_irq, data);
+	gpio_free(gpio_cd);
+	gpio_free(gpio_wp);
+}
+
+static struct pxamci_platform_data zylonite_mci_platform_data = {
+	.detect_delay	= 20,
+	.ocr_mask	= MMC_VDD_32_33|MMC_VDD_33_34,
+	.init 		= zylonite_mci_init,
+	.exit		= zylonite_mci_exit,
+	.get_ro		= zylonite_mci_ro,
+};
+
+static void __init zylonite_init_mmc(void)
+{
+	pxa_set_mci_info(&zylonite_mci_platform_data);
+}
+#else
+static inline void zylonite_init_mmc(void) {}
+#endif
+
 static void __init zylonite_init(void)
 {
 	/* board-processor specific initialization */
@@ -171,6 +256,7 @@ static void __init zylonite_init(void)
 	platform_device_register(&smc91x_device);
 
 	zylonite_init_lcd();
+	zylonite_init_mmc();
 }
 
 MACHINE_START(ZYLONITE, "PXA3xx Platform Development Kit (aka Zylonite)")
diff --git a/arch/arm/mach-pxa/zylonite_pxa300.c b/arch/arm/mach-pxa/zylonite_pxa300.c
index 1832bc316501..cad92d480f2a 100644
--- a/arch/arm/mach-pxa/zylonite_pxa300.c
+++ b/arch/arm/mach-pxa/zylonite_pxa300.c
@@ -88,6 +88,15 @@ static mfp_cfg_t common_mfp_cfg[] __initdata = {
 	GPIO4_2_KP_MKOUT_5,
 	GPIO5_2_KP_MKOUT_6,
 	GPIO6_2_KP_MKOUT_7,
+
+	/* MMC1 */
+	GPIO3_MMC1_DAT0,
+	GPIO4_MMC1_DAT1,
+	GPIO5_MMC1_DAT2,
+	GPIO6_MMC1_DAT3,
+	GPIO7_MMC1_CLK,
+	GPIO8_MMC1_CMD,	/* CMD0 for slot 0 */
+	GPIO15_GPIO,	/* CMD1 default as GPIO for slot 0 */
 };
 
 static mfp_cfg_t pxa300_mfp_cfg[] __initdata = {
@@ -174,6 +183,10 @@ void __init zylonite_pxa300_init(void)
 
 		/* GPIO pin assignment */
 		gpio_backlight = mfp_to_gpio(MFP_PIN_GPIO20);
+
+		/* MMC card detect & write protect for controller 0 */
+		zylonite_mmc_slot[0].gpio_cd  = EXT_GPIO(0);
+		zylonite_mmc_slot[0].gpio_wp  = EXT_GPIO(2);
 	}
 
 	if (cpu_is_pxa300()) {
diff --git a/arch/arm/mach-pxa/zylonite_pxa320.c b/arch/arm/mach-pxa/zylonite_pxa320.c
index 94c715808b59..593f7bffb3b4 100644
--- a/arch/arm/mach-pxa/zylonite_pxa320.c
+++ b/arch/arm/mach-pxa/zylonite_pxa320.c
@@ -95,6 +95,15 @@ static mfp_cfg_t mfp_cfg[] __initdata = {
 	/* Ethernet */
 	GPIO4_nCS3,
 	GPIO90_GPIO,
+
+	/* MMC1 */
+	GPIO18_MMC1_DAT0,
+	GPIO19_MMC1_DAT1,
+	GPIO20_MMC1_DAT2,
+	GPIO21_MMC1_DAT3,
+	GPIO22_MMC1_CLK,
+	GPIO23_MMC1_CMD,/* CMD0 for slot 0 */
+	GPIO31_GPIO,	/* CMD1 default as GPIO for slot 0 */
 };
 
 #define NUM_LCD_DETECT_PINS	7
@@ -169,5 +178,9 @@ void __init zylonite_pxa320_init(void)
 		/* GPIO pin assignment */
 		gpio_backlight	= mfp_to_gpio(MFP_PIN_GPIO14);
 		gpio_eth_irq	= mfp_to_gpio(MFP_PIN_GPIO9);
+
+		/* MMC card detect & write protect for controller 0 */
+		zylonite_mmc_slot[0].gpio_cd  = mfp_to_gpio(MFP_PIN_GPIO1);
+		zylonite_mmc_slot[0].gpio_wp  = mfp_to_gpio(MFP_PIN_GPIO5);
 	}
 }
diff --git a/drivers/mmc/host/pxamci.h b/drivers/mmc/host/pxamci.h
index 748c7706f237..f6c2e2fcce37 100644
--- a/drivers/mmc/host/pxamci.h
+++ b/drivers/mmc/host/pxamci.h
@@ -68,7 +68,7 @@
 #define PRG_DONE		(1 << 1)
 #define DATA_TRAN_DONE		(1 << 0)
 
-#ifdef CONFIG_PXA27x
+#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
 #define MMC_I_MASK_ALL          0x00001fff
 #else
 #define MMC_I_MASK_ALL          0x0000007f
diff --git a/include/asm-arm/arch-pxa/zylonite.h b/include/asm-arm/arch-pxa/zylonite.h
index f58b59162b82..5f717d64ea7d 100644
--- a/include/asm-arm/arch-pxa/zylonite.h
+++ b/include/asm-arm/arch-pxa/zylonite.h
@@ -3,9 +3,18 @@
 
 #define ZYLONITE_ETH_PHYS	0x14000000
 
+#define EXT_GPIO(x)		(128 + (x))
+
 /* the following variables are processor specific and initialized
  * by the corresponding zylonite_pxa3xx_init()
  */
+struct platform_mmc_slot {
+	int gpio_cd;
+	int gpio_wp;
+};
+
+extern struct platform_mmc_slot zylonite_mmc_slot[];
+
 extern int gpio_backlight;
 extern int gpio_eth_irq;
 
-- 
cgit v1.2.3-59-g8ed1b


From 8d33b05581d1bc66e2356957bb2739e177a9cc36 Mon Sep 17 00:00:00 2001
From: Bridge Wu <bridge.wu@marvell.com>
Date: Fri, 21 Dec 2007 19:15:36 +0800
Subject: [ARM] pxa: mmc: add 2nd host controller support for pxa3xx

This patch is to add the second mmc controller support for pxa3xx.
It's valid for pxa3[0|1|2]0.

On zylonite, the second controller has no slot.

Signed-off-by: Bridge Wu <bridge.wu@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/devices.c         | 40 +++++++++++++++++++++++++++++++++++++
 arch/arm/mach-pxa/devices.h         |  1 +
 arch/arm/mach-pxa/pxa3xx.c          |  1 +
 arch/arm/mach-pxa/zylonite.c        |  6 ++++++
 arch/arm/mach-pxa/zylonite_pxa300.c |  8 ++++++++
 arch/arm/mach-pxa/zylonite_pxa320.c |  8 ++++++++
 include/asm-arm/arch-pxa/mmc.h      |  1 +
 7 files changed, 65 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index 202d048f1cdd..bc04e87ed3b4 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -549,4 +549,44 @@ struct platform_device pxa3xx_device_ssp4 = {
 	.resource	= pxa3xx_resource_ssp4,
 	.num_resources	= ARRAY_SIZE(pxa3xx_resource_ssp4),
 };
+
+static struct resource pxa3xx_resources_mci2[] = {
+	[0] = {
+		.start	= 0x42000000,
+		.end	= 0x42000fff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_MMC2,
+		.end	= IRQ_MMC2,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= 93,
+		.end	= 93,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= 94,
+		.end	= 94,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa3xx_device_mci2 = {
+	.name		= "pxa2xx-mci",
+	.id		= 1,
+	.dev		= {
+		.dma_mask = &pxamci_dmamask,
+		.coherent_dma_mask =	0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(pxa3xx_resources_mci2),
+	.resource	= pxa3xx_resources_mci2,
+};
+
+void __init pxa3xx_set_mci2_info(struct pxamci_platform_data *info)
+{
+	pxa_register_device(&pxa3xx_device_mci2, info);
+}
+
 #endif /* CONFIG_PXA3xx */
diff --git a/arch/arm/mach-pxa/devices.h b/arch/arm/mach-pxa/devices.h
index e78b48f62b36..d78068cc8015 100644
--- a/arch/arm/mach-pxa/devices.h
+++ b/arch/arm/mach-pxa/devices.h
@@ -1,4 +1,5 @@
 extern struct platform_device pxa_device_mci;
+extern struct platform_device pxa3xx_device_mci2;
 extern struct platform_device pxa_device_udc;
 extern struct platform_device pxa_device_fb;
 extern struct platform_device pxa_device_ffuart;
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 6271af303cb9..124ad5eb7ab0 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -196,6 +196,7 @@ static struct clk pxa3xx_clks[] = {
 	PXA3xx_CKEN("SSPCLK", SSP4, 13000000, 0, &pxa3xx_device_ssp4.dev),
 
 	PXA3xx_CKEN("MMCCLK", MMC1, 19500000, 0, &pxa_device_mci.dev),
+	PXA3xx_CKEN("MMCCLK", MMC2, 19500000, 0, &pxa3xx_device_mci2.dev),
 };
 
 void __init pxa3xx_init_irq(void)
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index f72f37f6ff0c..33986036f146 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -233,9 +233,15 @@ static struct pxamci_platform_data zylonite_mci_platform_data = {
 	.get_ro		= zylonite_mci_ro,
 };
 
+static struct pxamci_platform_data zylonite_mci2_platform_data = {
+	.detect_delay	= 20,
+	.ocr_mask	= MMC_VDD_32_33|MMC_VDD_33_34,
+};
+
 static void __init zylonite_init_mmc(void)
 {
 	pxa_set_mci_info(&zylonite_mci_platform_data);
+	pxa3xx_set_mci2_info(&zylonite_mci2_platform_data);
 }
 #else
 static inline void zylonite_init_mmc(void) {}
diff --git a/arch/arm/mach-pxa/zylonite_pxa300.c b/arch/arm/mach-pxa/zylonite_pxa300.c
index cad92d480f2a..38c1ddc6cb1d 100644
--- a/arch/arm/mach-pxa/zylonite_pxa300.c
+++ b/arch/arm/mach-pxa/zylonite_pxa300.c
@@ -97,6 +97,14 @@ static mfp_cfg_t common_mfp_cfg[] __initdata = {
 	GPIO7_MMC1_CLK,
 	GPIO8_MMC1_CMD,	/* CMD0 for slot 0 */
 	GPIO15_GPIO,	/* CMD1 default as GPIO for slot 0 */
+
+	/* MMC2 */
+	GPIO9_MMC2_DAT0,
+	GPIO10_MMC2_DAT1,
+	GPIO11_MMC2_DAT2,
+	GPIO12_MMC2_DAT3,
+	GPIO13_MMC2_CLK,
+	GPIO14_MMC2_CMD,
 };
 
 static mfp_cfg_t pxa300_mfp_cfg[] __initdata = {
diff --git a/arch/arm/mach-pxa/zylonite_pxa320.c b/arch/arm/mach-pxa/zylonite_pxa320.c
index 593f7bffb3b4..1036da3315d8 100644
--- a/arch/arm/mach-pxa/zylonite_pxa320.c
+++ b/arch/arm/mach-pxa/zylonite_pxa320.c
@@ -104,6 +104,14 @@ static mfp_cfg_t mfp_cfg[] __initdata = {
 	GPIO22_MMC1_CLK,
 	GPIO23_MMC1_CMD,/* CMD0 for slot 0 */
 	GPIO31_GPIO,	/* CMD1 default as GPIO for slot 0 */
+
+	/* MMC2 */
+	GPIO24_MMC2_DAT0,
+	GPIO25_MMC2_DAT1,
+	GPIO26_MMC2_DAT2,
+	GPIO27_MMC2_DAT3,
+	GPIO28_MMC2_CLK,
+	GPIO29_MMC2_CMD,
 };
 
 #define NUM_LCD_DETECT_PINS	7
diff --git a/include/asm-arm/arch-pxa/mmc.h b/include/asm-arm/arch-pxa/mmc.h
index ef4f570381d1..dd30299a3c66 100644
--- a/include/asm-arm/arch-pxa/mmc.h
+++ b/include/asm-arm/arch-pxa/mmc.h
@@ -17,5 +17,6 @@ struct pxamci_platform_data {
 };
 
 extern void pxa_set_mci_info(struct pxamci_platform_data *info);
+extern void pxa3xx_set_mci2_info(struct pxamci_platform_data *info);
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 5a1f21b1e546fafe840944f02949c1a8a8725132 Mon Sep 17 00:00:00 2001
From: Bridge Wu <bridge.wu@marvell.com>
Date: Fri, 21 Dec 2007 19:27:08 +0800
Subject: [ARM] pxa: mmc: add 3rd host controller support for pxa310

This patch is to add the third mmc controller support _only_
for pxa310.

On zylonite, the third controller support one slot.

Signed-off-by: Bridge Wu <bridge.wu@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/devices.c         | 39 +++++++++++++++++++++++++++++++++++++
 arch/arm/mach-pxa/devices.h         |  1 +
 arch/arm/mach-pxa/pxa3xx.c          |  1 +
 arch/arm/mach-pxa/zylonite.c        |  4 +++-
 arch/arm/mach-pxa/zylonite_pxa300.c | 12 ++++++++++++
 include/asm-arm/arch-pxa/mmc.h      |  1 +
 6 files changed, 57 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index bc04e87ed3b4..061ec92eb1e2 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -589,4 +589,43 @@ void __init pxa3xx_set_mci2_info(struct pxamci_platform_data *info)
 	pxa_register_device(&pxa3xx_device_mci2, info);
 }
 
+static struct resource pxa3xx_resources_mci3[] = {
+	[0] = {
+		.start	= 0x42500000,
+		.end	= 0x42500fff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_MMC3,
+		.end	= IRQ_MMC3,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= 100,
+		.end	= 100,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= 101,
+		.end	= 101,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+struct platform_device pxa3xx_device_mci3 = {
+	.name		= "pxa2xx-mci",
+	.id		= 2,
+	.dev		= {
+		.dma_mask = &pxamci_dmamask,
+		.coherent_dma_mask = 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(pxa3xx_resources_mci3),
+	.resource	= pxa3xx_resources_mci3,
+};
+
+void __init pxa3xx_set_mci3_info(struct pxamci_platform_data *info)
+{
+	pxa_register_device(&pxa3xx_device_mci3, info);
+}
+
 #endif /* CONFIG_PXA3xx */
diff --git a/arch/arm/mach-pxa/devices.h b/arch/arm/mach-pxa/devices.h
index d78068cc8015..96c7c8909068 100644
--- a/arch/arm/mach-pxa/devices.h
+++ b/arch/arm/mach-pxa/devices.h
@@ -1,5 +1,6 @@
 extern struct platform_device pxa_device_mci;
 extern struct platform_device pxa3xx_device_mci2;
+extern struct platform_device pxa3xx_device_mci3;
 extern struct platform_device pxa_device_udc;
 extern struct platform_device pxa_device_fb;
 extern struct platform_device pxa_device_ffuart;
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 124ad5eb7ab0..843ba9bf3df7 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -197,6 +197,7 @@ static struct clk pxa3xx_clks[] = {
 
 	PXA3xx_CKEN("MMCCLK", MMC1, 19500000, 0, &pxa_device_mci.dev),
 	PXA3xx_CKEN("MMCCLK", MMC2, 19500000, 0, &pxa3xx_device_mci2.dev),
+	PXA3xx_CKEN("MMCCLK", MMC3, 19500000, 0, &pxa3xx_device_mci3.dev),
 };
 
 void __init pxa3xx_init_irq(void)
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index 33986036f146..b49c69d024c7 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -29,7 +29,7 @@
 
 #include "generic.h"
 
-#define MAX_SLOTS	2
+#define MAX_SLOTS	3
 struct platform_mmc_slot zylonite_mmc_slot[MAX_SLOTS];
 
 int gpio_backlight;
@@ -242,6 +242,8 @@ static void __init zylonite_init_mmc(void)
 {
 	pxa_set_mci_info(&zylonite_mci_platform_data);
 	pxa3xx_set_mci2_info(&zylonite_mci2_platform_data);
+	if (cpu_is_pxa310())
+		pxa3xx_set_mci3_info(&zylonite_mci_platform_data);
 }
 #else
 static inline void zylonite_init_mmc(void) {}
diff --git a/arch/arm/mach-pxa/zylonite_pxa300.c b/arch/arm/mach-pxa/zylonite_pxa300.c
index 38c1ddc6cb1d..0e159a3024c0 100644
--- a/arch/arm/mach-pxa/zylonite_pxa300.c
+++ b/arch/arm/mach-pxa/zylonite_pxa300.c
@@ -133,6 +133,14 @@ static mfp_cfg_t pxa310_mfp_cfg[] __initdata = {
 	/* Ethernet */
 	GPIO2_nCS3,
 	GPIO102_GPIO,
+
+	/* MMC3 */
+	GPIO7_2_MMC3_DAT0,
+	GPIO8_2_MMC3_DAT1,
+	GPIO9_2_MMC3_DAT2,
+	GPIO10_2_MMC3_DAT3,
+	GPIO103_MMC3_CLK,
+	GPIO105_MMC3_CMD,
 };
 
 #define NUM_LCD_DETECT_PINS	7
@@ -205,5 +213,9 @@ void __init zylonite_pxa300_init(void)
 	if (cpu_is_pxa310()) {
 		pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg));
 		gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO102);
+
+		/* MMC card detect & write protect for controller 2 */
+		zylonite_mmc_slot[2].gpio_cd = EXT_GPIO(30);
+		zylonite_mmc_slot[2].gpio_wp = EXT_GPIO(31);
 	}
 }
diff --git a/include/asm-arm/arch-pxa/mmc.h b/include/asm-arm/arch-pxa/mmc.h
index dd30299a3c66..6d1304c9270f 100644
--- a/include/asm-arm/arch-pxa/mmc.h
+++ b/include/asm-arm/arch-pxa/mmc.h
@@ -18,5 +18,6 @@ struct pxamci_platform_data {
 
 extern void pxa_set_mci_info(struct pxamci_platform_data *info);
 extern void pxa3xx_set_mci2_info(struct pxamci_platform_data *info);
+extern void pxa3xx_set_mci3_info(struct pxamci_platform_data *info);
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 732ce16066964bb7b60947750e48374cc32bd310 Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Fri, 23 Nov 2007 14:55:59 +0800
Subject: [ARM] pxa: ensure SSP TX FIFO is empty instead of not full for pxa3xx

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/ssp.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c
index 575b662200a7..4954da907d42 100644
--- a/arch/arm/mach-pxa/ssp.c
+++ b/arch/arm/mach-pxa/ssp.c
@@ -138,6 +138,16 @@ int ssp_flush(struct ssp_dev *dev)
 	struct ssp_device *ssp = dev->ssp;
 	int timeout = TIMEOUT * 2;
 
+	/* ensure TX FIFO is empty instead of not full */
+	if (cpu_is_pxa3xx()) {
+		while (__raw_readl(ssp->mmio_base + SSSR) & 0xf00) {
+			if (!--timeout)
+				return -ETIMEDOUT;
+			cpu_relax();
+		}
+		timeout = TIMEOUT * 2;
+	}
+
 	do {
 		while (__raw_readl(ssp->mmio_base + SSSR) & SSSR_RNE) {
 		        if (!--timeout)
-- 
cgit v1.2.3-59-g8ed1b


From f92a629cf75b4f1df46fd8bc0a345ea3d3246281 Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Wed, 12 Dec 2007 09:32:01 +0800
Subject: [ARM] pxa: add clk of CKEN_USBHOST for pxa3xx

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/pxa3xx.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 843ba9bf3df7..fcb2359b3867 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -189,6 +189,7 @@ static struct clk pxa3xx_clks[] = {
 
 	PXA3xx_CKEN("I2CCLK", I2C,  32842000, 0, &pxa_device_i2c.dev),
 	PXA3xx_CKEN("UDCCLK", UDC,  48000000, 5, &pxa_device_udc.dev),
+	PXA3xx_CKEN("USBCLK", USBH, 48000000, 0, &pxa27x_device_ohci.dev),
 
 	PXA3xx_CKEN("SSPCLK", SSP1, 13000000, 0, &pxa27x_device_ssp1.dev),
 	PXA3xx_CKEN("SSPCLK", SSP2, 13000000, 0, &pxa27x_device_ssp2.dev),
-- 
cgit v1.2.3-59-g8ed1b


From ec68e45b75adab3a78dea4ecf0e645127deee8ae Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Wed, 12 Dec 2007 09:29:33 +0800
Subject: [ARM] pxa: move pxa27x_device_ohci out of pxa27x.c for use with
 pxa3xx

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/devices.c | 31 +++++++++++++++++++++++++++++++
 arch/arm/mach-pxa/pxa27x.c  | 31 -------------------------------
 2 files changed, 31 insertions(+), 31 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index 061ec92eb1e2..50ff453ad370 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -395,6 +395,37 @@ struct platform_device pxa25x_device_assp = {
 
 #if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
 
+static u64 pxa27x_ohci_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource pxa27x_resource_ohci[] = {
+	[0] = {
+		.start  = 0x4C000000,
+		.end    = 0x4C00ff6f,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = IRQ_USBH1,
+		.end    = IRQ_USBH1,
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device pxa27x_device_ohci = {
+	.name		= "pxa27x-ohci",
+	.id		= -1,
+	.dev		= {
+		.dma_mask = &pxa27x_ohci_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.num_resources  = ARRAY_SIZE(pxa27x_resource_ohci),
+	.resource       = pxa27x_resource_ohci,
+};
+
+void __init pxa_set_ohci_info(struct pxaohci_platform_data *info)
+{
+	pxa_register_device(&pxa27x_device_ohci, info);
+}
+
 static u64 pxa27x_ssp1_dma_mask = DMA_BIT_MASK(32);
 
 static struct resource pxa27x_resource_ssp1[] = {
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 12dd2b0629bf..ec7597b1cb54 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -374,37 +374,6 @@ void __init pxa27x_init_irq(void)
  * device registration specific to PXA27x.
  */
 
-static u64 pxa27x_dmamask = 0xffffffffUL;
-
-static struct resource pxa27x_ohci_resources[] = {
-	[0] = {
-		.start  = 0x4C000000,
-		.end    = 0x4C00ff6f,
-		.flags  = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start  = IRQ_USBH1,
-		.end    = IRQ_USBH1,
-		.flags  = IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device pxa27x_device_ohci = {
-	.name		= "pxa27x-ohci",
-	.id		= -1,
-	.dev		= {
-		.dma_mask = &pxa27x_dmamask,
-		.coherent_dma_mask = 0xffffffff,
-	},
-	.num_resources  = ARRAY_SIZE(pxa27x_ohci_resources),
-	.resource       = pxa27x_ohci_resources,
-};
-
-void __init pxa_set_ohci_info(struct pxaohci_platform_data *info)
-{
-	pxa_register_device(&pxa27x_device_ohci, info);
-}
-
 static struct resource i2c_power_resources[] = {
 	{
 		.start	= 0x40f00180,
-- 
cgit v1.2.3-59-g8ed1b


From 7664c400cc994542a27d1bacde54673880e7e179 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Fri, 4 Jan 2008 22:41:09 +0000
Subject: [ARM] pxa: increase size of memory mapping

The mapping for physical address 0x48000000 is not sufficient
to allow access to the dynamic memory controller configuration
registers on PXA3.  These registers need to be accessed to
reconfigure the SDRAM when waking from a low power mode.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/generic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
index e4dbdbc2fb15..698aeec52961 100644
--- a/arch/arm/mach-pxa/generic.c
+++ b/arch/arm/mach-pxa/generic.c
@@ -196,7 +196,7 @@ static struct map_desc standard_io_desc[] __initdata = {
 	}, {	/* Mem Ctl */
 		.virtual	=  0xf6000000,
 		.pfn		= __phys_to_pfn(0x48000000),
-		.length		= 0x00100000,
+		.length		= 0x00200000,
 		.type		= MT_DEVICE
 	}, {	/* USB host */
 		.virtual	=  0xf8000000,
-- 
cgit v1.2.3-59-g8ed1b


From 8785a8fbd5a1624dbabd7c782524450e902b722e Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Mon, 14 Jan 2008 17:02:33 +0000
Subject: [ARM] pxa: move memory controller registers into pxa2xx-regs.h

PXA3 has a different memory controller from PXA2 platforms.  Avoid
clashing definitions by moving the PXA2 definitions to pxa2xx-regs.h

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/cpu-pxa.c            |  1 +
 arch/arm/mach-pxa/lpd270.c             |  1 +
 arch/arm/mach-pxa/lubbock.c            |  1 +
 arch/arm/mach-pxa/mainstone.c          |  1 +
 arch/arm/mach-pxa/pxa27x.c             |  1 +
 arch/arm/mach-pxa/sleep.S              |  1 +
 drivers/pcmcia/pxa2xx_base.c           |  1 +
 include/asm-arm/arch-pxa/pxa-regs.h    | 63 -------------------------
 include/asm-arm/arch-pxa/pxa2xx-regs.h | 84 ++++++++++++++++++++++++++++++++++
 9 files changed, 91 insertions(+), 63 deletions(-)
 create mode 100644 include/asm-arm/arch-pxa/pxa2xx-regs.h

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/cpu-pxa.c b/arch/arm/mach-pxa/cpu-pxa.c
index 18d042bdf243..cbc583beedc8 100644
--- a/arch/arm/mach-pxa/cpu-pxa.c
+++ b/arch/arm/mach-pxa/cpu-pxa.c
@@ -39,6 +39,7 @@
 
 #include <asm/hardware.h>
 #include <asm/arch/pxa-regs.h>
+#include <asm/arch/pxa2xx-regs.h>
 
 #ifdef DEBUG
 static unsigned int freq_debug;
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index 78ebad063cba..afa62ffe3ad5 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -38,6 +38,7 @@
 #include <asm/mach/flash.h>
 
 #include <asm/arch/pxa-regs.h>
+#include <asm/arch/pxa2xx-regs.h>
 #include <asm/arch/lpd270.h>
 #include <asm/arch/audio.h>
 #include <asm/arch/pxafb.h>
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index 1b9290c0ed5e..a75594bf68b5 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -41,6 +41,7 @@
 #include <asm/hardware/sa1111.h>
 
 #include <asm/arch/pxa-regs.h>
+#include <asm/arch/pxa2xx-regs.h>
 #include <asm/arch/lubbock.h>
 #include <asm/arch/udc.h>
 #include <asm/arch/irda.h>
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 237459bf67c6..06e13608a2c9 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -39,6 +39,7 @@
 #include <asm/mach/flash.h>
 
 #include <asm/arch/pxa-regs.h>
+#include <asm/arch/pxa2xx-regs.h>
 #include <asm/arch/mainstone.h>
 #include <asm/arch/audio.h>
 #include <asm/arch/pxafb.h>
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index ec7597b1cb54..b9fa5ec0a954 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -21,6 +21,7 @@
 #include <asm/irq.h>
 #include <asm/arch/irqs.h>
 #include <asm/arch/pxa-regs.h>
+#include <asm/arch/pxa2xx-regs.h>
 #include <asm/arch/ohci.h>
 #include <asm/arch/pm.h>
 #include <asm/arch/dma.h>
diff --git a/arch/arm/mach-pxa/sleep.S b/arch/arm/mach-pxa/sleep.S
index d0447723b73a..f33d0c4a96d6 100644
--- a/arch/arm/mach-pxa/sleep.S
+++ b/arch/arm/mach-pxa/sleep.S
@@ -16,6 +16,7 @@
 #include <asm/hardware.h>
 
 #include <asm/arch/pxa-regs.h>
+#include <asm/arch/pxa2xx-regs.h>
 
 #define MDREFR_KDIV	0x200a4000	// all banks
 #define CCCR_SLEEP	0x00000107	// L=7 2N=2 A=0 PPDIS=0 CPDIS=0
diff --git a/drivers/pcmcia/pxa2xx_base.c b/drivers/pcmcia/pxa2xx_base.c
index 874923fcb2f9..e439044d88f2 100644
--- a/drivers/pcmcia/pxa2xx_base.c
+++ b/drivers/pcmcia/pxa2xx_base.c
@@ -29,6 +29,7 @@
 #include <asm/irq.h>
 #include <asm/system.h>
 #include <asm/arch/pxa-regs.h>
+#include <asm/arch/pxa2xx-regs.h>
 
 #include <pcmcia/cs_types.h>
 #include <pcmcia/ss.h>
diff --git a/include/asm-arm/arch-pxa/pxa-regs.h b/include/asm-arm/arch-pxa/pxa-regs.h
index f7809ea77396..442494d71f12 100644
--- a/include/asm-arm/arch-pxa/pxa-regs.h
+++ b/include/asm-arm/arch-pxa/pxa-regs.h
@@ -1848,71 +1848,8 @@
 
 #define LDCMD_PAL	(1 << 26)	/* instructs DMA to load palette buffer */
 
-/*
- * Memory controller
- */
-
-#define MDCNFG		__REG(0x48000000)  /* SDRAM Configuration Register 0 */
-#define MDREFR		__REG(0x48000004)  /* SDRAM Refresh Control Register */
-#define MSC0		__REG(0x48000008)  /* Static Memory Control Register 0 */
-#define MSC1		__REG(0x4800000C)  /* Static Memory Control Register 1 */
-#define MSC2		__REG(0x48000010)  /* Static Memory Control Register 2 */
-#define MECR		__REG(0x48000014)  /* Expansion Memory (PCMCIA/Compact Flash) Bus Configuration */
-#define SXLCR		__REG(0x48000018)  /* LCR value to be written to SDRAM-Timing Synchronous Flash */
-#define SXCNFG		__REG(0x4800001C)  /* Synchronous Static Memory Control Register */
-#define SXMRS		__REG(0x48000024)  /* MRS value to be written to Synchronous Flash or SMROM */
-#define MCMEM0		__REG(0x48000028)  /* Card interface Common Memory Space Socket 0 Timing */
-#define MCMEM1		__REG(0x4800002C)  /* Card interface Common Memory Space Socket 1 Timing */
-#define MCATT0		__REG(0x48000030)  /* Card interface Attribute Space Socket 0 Timing Configuration */
-#define MCATT1		__REG(0x48000034)  /* Card interface Attribute Space Socket 1 Timing Configuration */
-#define MCIO0		__REG(0x48000038)  /* Card interface I/O Space Socket 0 Timing Configuration */
-#define MCIO1		__REG(0x4800003C)  /* Card interface I/O Space Socket 1 Timing Configuration */
-#define MDMRS		__REG(0x48000040)  /* MRS value to be written to SDRAM */
-#define BOOT_DEF	__REG(0x48000044)  /* Read-Only Boot-Time Register. Contains BOOT_SEL and PKG_SEL */
-
-/*
- * More handy macros for PCMCIA
- *
- * Arg is socket number
- */
-#define MCMEM(s)	__REG2(0x48000028, (s)<<2 )  /* Card interface Common Memory Space Socket s Timing */
-#define MCATT(s)	__REG2(0x48000030, (s)<<2 )  /* Card interface Attribute Space Socket s Timing Configuration */
-#define MCIO(s)		__REG2(0x48000038, (s)<<2 )  /* Card interface I/O Space Socket s Timing Configuration */
-
-/* MECR register defines */
-#define MECR_NOS	(1 << 0)	/* Number Of Sockets: 0 -> 1 sock, 1 -> 2 sock */
-#define MECR_CIT	(1 << 1)	/* Card Is There: 0 -> no card, 1 -> card inserted */
-
-#define MDREFR_K0DB4	(1 << 29)	/* SDCLK0 Divide by 4 Control/Status */
-#define MDREFR_K2FREE	(1 << 25)	/* SDRAM Free-Running Control */
-#define MDREFR_K1FREE	(1 << 24)	/* SDRAM Free-Running Control */
-#define MDREFR_K0FREE	(1 << 23)	/* SDRAM Free-Running Control */
-#define MDREFR_SLFRSH	(1 << 22)	/* SDRAM Self-Refresh Control/Status */
-#define MDREFR_APD	(1 << 20)	/* SDRAM/SSRAM Auto-Power-Down Enable */
-#define MDREFR_K2DB2	(1 << 19)	/* SDCLK2 Divide by 2 Control/Status */
-#define MDREFR_K2RUN	(1 << 18)	/* SDCLK2 Run Control/Status */
-#define MDREFR_K1DB2	(1 << 17)	/* SDCLK1 Divide by 2 Control/Status */
-#define MDREFR_K1RUN	(1 << 16)	/* SDCLK1 Run Control/Status */
-#define MDREFR_E1PIN	(1 << 15)	/* SDCKE1 Level Control/Status */
-#define MDREFR_K0DB2	(1 << 14)	/* SDCLK0 Divide by 2 Control/Status */
-#define MDREFR_K0RUN	(1 << 13)	/* SDCLK0 Run Control/Status */
-#define MDREFR_E0PIN	(1 << 12)	/* SDCKE0 Level Control/Status */
-
-
 #ifdef CONFIG_PXA27x
 
-#define ARB_CNTRL	__REG(0x48000048)  /* Arbiter Control Register */
-
-#define ARB_DMA_SLV_PARK	(1<<31)	   /* Be parked with DMA slave when idle */
-#define ARB_CI_PARK		(1<<30)	   /* Be parked with Camera Interface when idle */
-#define ARB_EX_MEM_PARK 	(1<<29)	   /* Be parked with external MEMC when idle */
-#define ARB_INT_MEM_PARK	(1<<28)	   /* Be parked with internal MEMC when idle */
-#define ARB_USB_PARK		(1<<27)	   /* Be parked with USB when idle */
-#define ARB_LCD_PARK		(1<<26)	   /* Be parked with LCD when idle */
-#define ARB_DMA_PARK		(1<<25)	   /* Be parked with DMA when idle */
-#define ARB_CORE_PARK		(1<<24)	   /* Be parked with core when idle */
-#define ARB_LOCK_FLAG		(1<<23)	   /* Only Locking masters gain access to the bus */
-
 /*
  * Keypad
  */
diff --git a/include/asm-arm/arch-pxa/pxa2xx-regs.h b/include/asm-arm/arch-pxa/pxa2xx-regs.h
new file mode 100644
index 000000000000..9553b54fa5bc
--- /dev/null
+++ b/include/asm-arm/arch-pxa/pxa2xx-regs.h
@@ -0,0 +1,84 @@
+/*
+ *  linux/include/asm-arm/arch-pxa/pxa2xx-regs.h
+ *
+ *  Taken from pxa-regs.h by Russell King
+ *
+ *  Author:	Nicolas Pitre
+ *  Copyright:	MontaVista Software Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __PXA2XX_REGS_H
+#define __PXA2XX_REGS_H
+
+/*
+ * Memory controller
+ */
+
+#define MDCNFG		__REG(0x48000000)  /* SDRAM Configuration Register 0 */
+#define MDREFR		__REG(0x48000004)  /* SDRAM Refresh Control Register */
+#define MSC0		__REG(0x48000008)  /* Static Memory Control Register 0 */
+#define MSC1		__REG(0x4800000C)  /* Static Memory Control Register 1 */
+#define MSC2		__REG(0x48000010)  /* Static Memory Control Register 2 */
+#define MECR		__REG(0x48000014)  /* Expansion Memory (PCMCIA/Compact Flash) Bus Configuration */
+#define SXLCR		__REG(0x48000018)  /* LCR value to be written to SDRAM-Timing Synchronous Flash */
+#define SXCNFG		__REG(0x4800001C)  /* Synchronous Static Memory Control Register */
+#define SXMRS		__REG(0x48000024)  /* MRS value to be written to Synchronous Flash or SMROM */
+#define MCMEM0		__REG(0x48000028)  /* Card interface Common Memory Space Socket 0 Timing */
+#define MCMEM1		__REG(0x4800002C)  /* Card interface Common Memory Space Socket 1 Timing */
+#define MCATT0		__REG(0x48000030)  /* Card interface Attribute Space Socket 0 Timing Configuration */
+#define MCATT1		__REG(0x48000034)  /* Card interface Attribute Space Socket 1 Timing Configuration */
+#define MCIO0		__REG(0x48000038)  /* Card interface I/O Space Socket 0 Timing Configuration */
+#define MCIO1		__REG(0x4800003C)  /* Card interface I/O Space Socket 1 Timing Configuration */
+#define MDMRS		__REG(0x48000040)  /* MRS value to be written to SDRAM */
+#define BOOT_DEF	__REG(0x48000044)  /* Read-Only Boot-Time Register. Contains BOOT_SEL and PKG_SEL */
+
+/*
+ * More handy macros for PCMCIA
+ *
+ * Arg is socket number
+ */
+#define MCMEM(s)	__REG2(0x48000028, (s)<<2 )  /* Card interface Common Memory Space Socket s Timing */
+#define MCATT(s)	__REG2(0x48000030, (s)<<2 )  /* Card interface Attribute Space Socket s Timing Configuration */
+#define MCIO(s)		__REG2(0x48000038, (s)<<2 )  /* Card interface I/O Space Socket s Timing Configuration */
+
+/* MECR register defines */
+#define MECR_NOS	(1 << 0)	/* Number Of Sockets: 0 -> 1 sock, 1 -> 2 sock */
+#define MECR_CIT	(1 << 1)	/* Card Is There: 0 -> no card, 1 -> card inserted */
+
+#define MDREFR_K0DB4	(1 << 29)	/* SDCLK0 Divide by 4 Control/Status */
+#define MDREFR_K2FREE	(1 << 25)	/* SDRAM Free-Running Control */
+#define MDREFR_K1FREE	(1 << 24)	/* SDRAM Free-Running Control */
+#define MDREFR_K0FREE	(1 << 23)	/* SDRAM Free-Running Control */
+#define MDREFR_SLFRSH	(1 << 22)	/* SDRAM Self-Refresh Control/Status */
+#define MDREFR_APD	(1 << 20)	/* SDRAM/SSRAM Auto-Power-Down Enable */
+#define MDREFR_K2DB2	(1 << 19)	/* SDCLK2 Divide by 2 Control/Status */
+#define MDREFR_K2RUN	(1 << 18)	/* SDCLK2 Run Control/Status */
+#define MDREFR_K1DB2	(1 << 17)	/* SDCLK1 Divide by 2 Control/Status */
+#define MDREFR_K1RUN	(1 << 16)	/* SDCLK1 Run Control/Status */
+#define MDREFR_E1PIN	(1 << 15)	/* SDCKE1 Level Control/Status */
+#define MDREFR_K0DB2	(1 << 14)	/* SDCLK0 Divide by 2 Control/Status */
+#define MDREFR_K0RUN	(1 << 13)	/* SDCLK0 Run Control/Status */
+#define MDREFR_E0PIN	(1 << 12)	/* SDCKE0 Level Control/Status */
+
+
+#ifdef CONFIG_PXA27x
+
+#define ARB_CNTRL	__REG(0x48000048)  /* Arbiter Control Register */
+
+#define ARB_DMA_SLV_PARK	(1<<31)	   /* Be parked with DMA slave when idle */
+#define ARB_CI_PARK		(1<<30)	   /* Be parked with Camera Interface when idle */
+#define ARB_EX_MEM_PARK 	(1<<29)	   /* Be parked with external MEMC when idle */
+#define ARB_INT_MEM_PARK	(1<<28)	   /* Be parked with internal MEMC when idle */
+#define ARB_USB_PARK		(1<<27)	   /* Be parked with USB when idle */
+#define ARB_LCD_PARK		(1<<26)	   /* Be parked with LCD when idle */
+#define ARB_DMA_PARK		(1<<25)	   /* Be parked with DMA when idle */
+#define ARB_CORE_PARK		(1<<24)	   /* Be parked with core when idle */
+#define ARB_LOCK_FLAG		(1<<23)	   /* Only Locking masters gain access to the bus */
+
+#endif
+
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From f79299ca85f6f8c8817bc38494f7caa0a7043c3b Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Wed, 2 Jan 2008 08:24:49 +0800
Subject: [ARM] pxa: clean up pxa{27x,25x}_init_pm() to empty if CONFIG_PM not
 defined

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/pxa25x.c | 6 ++++--
 arch/arm/mach-pxa/pxa27x.c | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index c6ea0ed69270..962cfbb5500e 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -239,6 +239,8 @@ static void __init pxa25x_init_pm(void)
 {
 	pxa_cpu_pm_fns = &pxa25x_cpu_pm_fns;
 }
+#else
+static inline void pxa25x_init_pm(void) {}
 #endif
 
 /* PXA25x: supports wakeup from GPIO0..GPIO15 and RTC alarm
@@ -310,9 +312,9 @@ static int __init pxa25x_init(void)
 
 		if ((ret = pxa_init_dma(16)))
 			return ret;
-#ifdef CONFIG_PM
+
 		pxa25x_init_pm();
-#endif
+
 		ret = platform_add_devices(pxa25x_devices,
 					   ARRAY_SIZE(pxa25x_devices));
 	}
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index b9fa5ec0a954..f33c9d7ff87e 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -306,6 +306,8 @@ static void __init pxa27x_init_pm(void)
 {
 	pxa_cpu_pm_fns = &pxa27x_cpu_pm_fns;
 }
+#else
+static inline void pxa27x_init_pm(void) {}
 #endif
 
 /* PXA27x:  Various gpios can issue wakeup events.  This logic only
@@ -415,9 +417,9 @@ static int __init pxa27x_init(void)
 
 		if ((ret = pxa_init_dma(32)))
 			return ret;
-#ifdef CONFIG_PM
+
 		pxa27x_init_pm();
-#endif
+
 		ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 	}
 	return ret;
-- 
cgit v1.2.3-59-g8ed1b


From 533462fba545d271e087c3c632cf62ff04808e40 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Fri, 4 Jan 2008 22:43:36 +0000
Subject: [ARM] pxa: omit PXA25x or PXA27x standby/sleep code as appropriate

There's no point building standby/sleep code for processors which
aren't configured.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/Makefile  | 6 +-----
 arch/arm/mach-pxa/sleep.S   | 8 ++++++--
 arch/arm/mach-pxa/standby.S | 3 +++
 3 files changed, 10 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index db18c8de7d55..f7444c7a9227 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -41,14 +41,10 @@ led-$(CONFIG_MACH_TRIZEPS4)	+= leds-trizeps4.o
 obj-$(CONFIG_LEDS)		+= $(led-y)
 
 # Misc features
-obj-$(CONFIG_PM)		+= pm.o sleep.o
+obj-$(CONFIG_PM)		+= pm.o sleep.o standby.o
 obj-$(CONFIG_CPU_FREQ)		+= cpu-pxa.o
 obj-$(CONFIG_PXA_SSP)		+= ssp.o
 
-ifeq ($(CONFIG_PXA27x),y)
-obj-$(CONFIG_PM)		+= standby.o
-endif
-
 ifeq ($(CONFIG_PCI),y)
 obj-$(CONFIG_MACH_ARMCORE) += cm-x270-pci.o
 endif
diff --git a/arch/arm/mach-pxa/sleep.S b/arch/arm/mach-pxa/sleep.S
index f33d0c4a96d6..14bb4a93ea52 100644
--- a/arch/arm/mach-pxa/sleep.S
+++ b/arch/arm/mach-pxa/sleep.S
@@ -50,6 +50,7 @@ pxa_cpu_save_sp:
 	str	r0, [r1]
 	ldr	pc, [sp], #4
 
+#ifdef CONFIG_PXA27x
 /*
  * pxa27x_cpu_suspend()
  *
@@ -105,9 +106,11 @@ ENTRY(pxa27x_cpu_suspend)
 
 	@ align execution to a cache line
 	b	pxa_cpu_do_suspend
+#endif
 
+#ifdef CONFIG_PXA25x
 /*
- * pxa27x_cpu_suspend()
+ * pxa25x_cpu_suspend()
  *
  * Forces CPU into sleep state.
  *
@@ -170,6 +173,7 @@ ENTRY(pxa25x_cpu_suspend)
 	mcr	p14, 0, r0, c6, c0, 0
 	orr	r0, r0, #2			@ initiate change bit
 	b	pxa_cpu_do_suspend
+#endif
 
 	.ltorg
 	.align	5
@@ -209,7 +213,7 @@ pxa_cpu_do_suspend:
 20:	b	20b				@ loop waiting for sleep
 
 /*
- * cpu_pxa_resume()
+ * pxa_cpu_resume()
  *
  * entry point from bootloader into kernel during resume
  *
diff --git a/arch/arm/mach-pxa/standby.S b/arch/arm/mach-pxa/standby.S
index d774430d02c0..434a6ab0eca5 100644
--- a/arch/arm/mach-pxa/standby.S
+++ b/arch/arm/mach-pxa/standby.S
@@ -17,6 +17,7 @@
 
 		.text
 
+#ifdef CONFIG_PXA27x
 ENTRY(pxa_cpu_standby)
 	ldr	r0, =PSSR
 	mov	r1, #(PSSR_PH | PSSR_STS)
@@ -29,3 +30,5 @@ ENTRY(pxa_cpu_standby)
 1:	mcr	p14, 0, r2, c7, c0, 0	@ put the system into Standby
 	str	r1, [r0]		@ make sure PSSR_PH/STS are clear
 	mov	pc, lr
+
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From 0ad1fbc86045c2a27ff082c02344131be072699f Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Wed, 2 Jan 2008 17:34:27 +0800
Subject: [ARM] pxa: remove un-used pxa3xx_mfp_set_xxx() functions

pxa3xx_mfp_set_xxx() functions are originally provided for overwriting
MFP configurations performed by pxa3xx_mfp_config(), the usage of such
a dirtry trick is not recommended, since there is currently no user of
these functions, they are safely removed

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/mfp.c        | 111 -----------------------------------------
 include/asm-arm/arch-pxa/mfp.h |  14 ------
 2 files changed, 125 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/mfp.c b/arch/arm/mach-pxa/mfp.c
index 436f96574964..785ae0ddb84f 100644
--- a/arch/arm/mach-pxa/mfp.c
+++ b/arch/arm/mach-pxa/mfp.c
@@ -96,117 +96,6 @@ void pxa3xx_mfp_write(int mfp, unsigned long val)
 	spin_unlock_irqrestore(&mfp_spin_lock, flags);
 }
 
-void pxa3xx_mfp_set_afds(int mfp, int af, int ds)
-{
-	uint32_t mfpr_off, mfpr_val;
-	unsigned long flags;
-
-	BUG_ON(mfp >= MFP_PIN_MAX);
-
-	spin_lock_irqsave(&mfp_spin_lock, flags);
-	mfpr_off = mfp_table[mfp].mfpr_off;
-
-	mfpr_val = mfpr_readl(mfpr_off);
-	mfpr_val &= ~(MFPR_AF_MASK | MFPR_DRV_MASK);
-	mfpr_val |= (((af & 0x7) << MFPR_ALT_OFFSET) |
-		     ((ds & 0x7) << MFPR_DRV_OFFSET));
-
-	mfpr_writel(mfpr_off, mfpr_val);
-	mfpr_sync();
-
-	spin_unlock_irqrestore(&mfp_spin_lock, flags);
-}
-
-void pxa3xx_mfp_set_rdh(int mfp, int rdh)
-{
-	uint32_t mfpr_off, mfpr_val;
-	unsigned long flags;
-
-	BUG_ON(mfp >= MFP_PIN_MAX);
-
-	spin_lock_irqsave(&mfp_spin_lock, flags);
-
-	mfpr_off = mfp_table[mfp].mfpr_off;
-
-	mfpr_val = mfpr_readl(mfpr_off);
-	mfpr_val &= ~MFPR_RDH_MASK;
-
-	if (likely(rdh))
-		mfpr_val |= (1u << MFPR_SS_OFFSET);
-
-	mfpr_writel(mfpr_off, mfpr_val);
-	mfpr_sync();
-
-	spin_unlock_irqrestore(&mfp_spin_lock, flags);
-}
-
-void pxa3xx_mfp_set_lpm(int mfp, int lpm)
-{
-	uint32_t mfpr_off, mfpr_val;
-	unsigned long flags;
-
-	BUG_ON(mfp >= MFP_PIN_MAX);
-
-	spin_lock_irqsave(&mfp_spin_lock, flags);
-
-	mfpr_off = mfp_table[mfp].mfpr_off;
-	mfpr_val = mfpr_readl(mfpr_off);
-	mfpr_val &= ~MFPR_LPM_MASK;
-
-	if (lpm & 0x1) mfpr_val |= 1u << MFPR_SON_OFFSET;
-	if (lpm & 0x2) mfpr_val |= 1u << MFPR_SD_OFFSET;
-	if (lpm & 0x4) mfpr_val |= 1u << MFPR_PU_OFFSET;
-	if (lpm & 0x8) mfpr_val |= 1u << MFPR_PD_OFFSET;
-	if (lpm &0x10) mfpr_val |= 1u << MFPR_PS_OFFSET;
-
-	mfpr_writel(mfpr_off, mfpr_val);
-	mfpr_sync();
-
-	spin_unlock_irqrestore(&mfp_spin_lock, flags);
-}
-
-void pxa3xx_mfp_set_pull(int mfp, int pull)
-{
-	uint32_t mfpr_off, mfpr_val;
-	unsigned long flags;
-
-	BUG_ON(mfp >= MFP_PIN_MAX);
-
-	spin_lock_irqsave(&mfp_spin_lock, flags);
-
-	mfpr_off = mfp_table[mfp].mfpr_off;
-	mfpr_val = mfpr_readl(mfpr_off);
-	mfpr_val &= ~MFPR_PULL_MASK;
-	mfpr_val |= ((pull & 0x7u) << MFPR_PD_OFFSET);
-
-	mfpr_writel(mfpr_off, mfpr_val);
-	mfpr_sync();
-
-	spin_unlock_irqrestore(&mfp_spin_lock, flags);
-}
-
-void pxa3xx_mfp_set_edge(int mfp, int edge)
-{
-	uint32_t mfpr_off, mfpr_val;
-	unsigned long flags;
-
-	BUG_ON(mfp >= MFP_PIN_MAX);
-
-	spin_lock_irqsave(&mfp_spin_lock, flags);
-
-	mfpr_off = mfp_table[mfp].mfpr_off;
-	mfpr_val = mfpr_readl(mfpr_off);
-
-	mfpr_val &= ~MFPR_EDGE_MASK;
-	mfpr_val |= (edge & 0x3u) << MFPR_ERE_OFFSET;
-	mfpr_val |= (!edge & 0x1) << MFPR_EC_OFFSET;
-
-	mfpr_writel(mfpr_off, mfpr_val);
-	mfpr_sync();
-
-	spin_unlock_irqrestore(&mfp_spin_lock, flags);
-}
-
 void __init pxa3xx_mfp_init_addr(struct pxa3xx_mfp_addr_map *map)
 {
 	struct pxa3xx_mfp_addr_map *p;
diff --git a/include/asm-arm/arch-pxa/mfp.h b/include/asm-arm/arch-pxa/mfp.h
index 7de234b0cca7..60fbed1b2e89 100644
--- a/include/asm-arm/arch-pxa/mfp.h
+++ b/include/asm-arm/arch-pxa/mfp.h
@@ -418,20 +418,6 @@ struct pxa3xx_mfp_pin {
 unsigned long pxa3xx_mfp_read(int mfp);
 void pxa3xx_mfp_write(int mfp, unsigned long mfpr_val);
 
-/*
- * pxa3xx_mfp_set_afds - set MFP alternate function and drive strength
- * pxa3xx_mfp_set_rdh  - set MFP release delay hold on/off
- * pxa3xx_mfp_set_lpm  - set MFP low power mode state
- * pxa3xx_mfp_set_edge - set MFP edge detection in low power mode
- *
- * use these functions to override/change the default configuration
- * done by pxa3xx_mfp_set_config(s)
- */
-void pxa3xx_mfp_set_afds(int mfp, int af, int ds);
-void pxa3xx_mfp_set_rdh(int mfp, int rdh);
-void pxa3xx_mfp_set_lpm(int mfp, int lpm);
-void pxa3xx_mfp_set_edge(int mfp, int edge);
-
 /*
  * pxa3xx_mfp_config - configure the MFPR registers
  *
-- 
cgit v1.2.3-59-g8ed1b


From 7f7c8a619253c83cf3b1071df3b001811d0c1a6c Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Thu, 3 Jan 2008 11:25:56 +0800
Subject: [ARM] pxa: make MFP configuration processor independent

There are two reasons for making the MFP configuration to be processor
independent, i.e. removing the relationship of configuration bits with
actual MFPR register settings:

   1. power management sometimes requires the MFP to be configured
      differently when in run mode or in low power mode

   2. for future integration of pxa{25x,27x} GPIO configurations

The modifications include:

1. introducing of processor independent MFP configuration bits, as
   defined in [include/asm-arm/arch-pxa/mfp.h]:

	bit  0.. 9 - MFP Pin Number (1024 Pins Maximum)
	bit 10..12 - Alternate Function Selection
	bit 13..15 - Drive Strength
	bit 16..18 - Low Power Mode State
	bit 19..20 - Low Power Mode Edge Detection
	bit 21..22 - Run Mode Pull State
	and so on,

2. moving the processor dependent code from mfp.h into mfp-pxa3xx.h

3. cleaning up of the MFPR bit definitions

4. mapping of processor independent MFP configuration into processor
   specific MFPR register settings is now totally encapsulated within
   pxa3xx_mfp_config()

5. using of "unsigned long" instead of invented type of "mfp_cfg_t"
   according to Documentation/CodingStyle Chapter 5, usage of this
   in platform code will be slowly removed in later patches

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/mfp.c               |  97 +++++++++++--
 include/asm-arm/arch-pxa/mfp-pxa3xx.h | 115 +++++++++++++++
 include/asm-arm/arch-pxa/mfp.h        | 262 +++++++++-------------------------
 3 files changed, 265 insertions(+), 209 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/mfp.c b/arch/arm/mach-pxa/mfp.c
index 785ae0ddb84f..c66b1cd7df64 100644
--- a/arch/arm/mach-pxa/mfp.c
+++ b/arch/arm/mach-pxa/mfp.c
@@ -20,6 +20,7 @@
 
 #include <asm/hardware.h>
 #include <asm/arch/mfp.h>
+#include <asm/arch/mfp-pxa3xx.h>
 
 /* mfp_spin_lock is used to ensure that MFP register configuration
  * (most likely a read-modify-write operation) is atomic, and that
@@ -28,43 +29,105 @@
 static DEFINE_SPINLOCK(mfp_spin_lock);
 
 static void __iomem *mfpr_mmio_base = (void __iomem *)&__REG(MFPR_BASE);
+
+struct pxa3xx_mfp_pin {
+	unsigned long	config;		/* -1 for not configured */
+	unsigned long	mfpr_off;	/* MFPRxx Register offset */
+	unsigned long	mfpr_run;	/* Run-Mode Register Value */
+	unsigned long	mfpr_lpm;	/* Low Power Mode Register Value */
+};
+
 static struct pxa3xx_mfp_pin mfp_table[MFP_PIN_MAX];
 
+/* mapping of MFP_LPM_* definitions to MFPR_LPM_* register bits */
+const static unsigned long mfpr_lpm[] = {
+	MFPR_LPM_INPUT,
+	MFPR_LPM_DRIVE_LOW,
+	MFPR_LPM_DRIVE_HIGH,
+	MFPR_LPM_PULL_LOW,
+	MFPR_LPM_PULL_HIGH,
+	MFPR_LPM_FLOAT,
+};
+
+/* mapping of MFP_PULL_* definitions to MFPR_PULL_* register bits */
+const static unsigned long mfpr_pull[] = {
+	MFPR_PULL_NONE,
+	MFPR_PULL_LOW,
+	MFPR_PULL_HIGH,
+	MFPR_PULL_BOTH,
+};
+
+/* mapping of MFP_LPM_EDGE_* definitions to MFPR_EDGE_* register bits */
+const static unsigned long mfpr_edge[] = {
+	MFPR_EDGE_NONE,
+	MFPR_EDGE_RISE,
+	MFPR_EDGE_FALL,
+	MFPR_EDGE_BOTH,
+};
+
 #define mfpr_readl(off)			\
 	__raw_readl(mfpr_mmio_base + (off))
 
 #define mfpr_writel(off, val)		\
 	__raw_writel(val, mfpr_mmio_base + (off))
 
+#define mfp_configured(p)	((p)->config != -1)
+
 /*
  * perform a read-back of any MFPR register to make sure the
  * previous writings are finished
  */
 #define mfpr_sync()	(void)__raw_readl(mfpr_mmio_base + 0)
 
-static inline void __mfp_config(int pin, unsigned long val)
+static inline void __mfp_config_run(struct pxa3xx_mfp_pin *p)
 {
-	unsigned long off = mfp_table[pin].mfpr_off;
+	if (mfp_configured(p))
+		mfpr_writel(p->mfpr_off, p->mfpr_run);
+}
 
-	mfp_table[pin].mfpr_val = val;
-	mfpr_writel(off, val);
+static inline void __mfp_config_lpm(struct pxa3xx_mfp_pin *p)
+{
+	if (mfp_configured(p) && p->mfpr_lpm != p->mfpr_run)
+		mfpr_writel(p->mfpr_off, p->mfpr_lpm);
 }
 
-void pxa3xx_mfp_config(mfp_cfg_t *mfp_cfgs, int num)
+void pxa3xx_mfp_config(unsigned long *mfp_cfgs, int num)
 {
-	int i, pin;
-	unsigned long val, flags;
-	mfp_cfg_t *mfp_cfg = mfp_cfgs;
+	unsigned long flags;
+	int i;
 
 	spin_lock_irqsave(&mfp_spin_lock, flags);
 
-	for (i = 0; i < num; i++, mfp_cfg++) {
-		pin = MFP_CFG_PIN(*mfp_cfg);
-		val = MFP_CFG_VAL(*mfp_cfg);
+	for (i = 0; i < num; i++, mfp_cfgs++) {
+		unsigned long tmp, c = *mfp_cfgs;
+		struct pxa3xx_mfp_pin *p;
+		int pin, af, drv, lpm, edge, pull;
 
+		pin = MFP_PIN(c);
 		BUG_ON(pin >= MFP_PIN_MAX);
-
-		__mfp_config(pin, val);
+		p = &mfp_table[pin];
+
+		af  = MFP_AF(c);
+		drv = MFP_DS(c);
+		lpm = MFP_LPM_STATE(c);
+		edge = MFP_LPM_EDGE(c);
+		pull = MFP_PULL(c);
+
+		/* run-mode pull settings will conflict with MFPR bits of
+		 * low power mode state,  calculate mfpr_run and mfpr_lpm
+		 * individually if pull != MFP_PULL_NONE
+		 */
+		tmp = MFPR_AF_SEL(af) | MFPR_DRIVE(drv);
+
+		if (likely(pull == MFP_PULL_NONE)) {
+			p->mfpr_run = tmp | mfpr_lpm[lpm] | mfpr_edge[edge];
+			p->mfpr_lpm = p->mfpr_run;
+		} else {
+			p->mfpr_lpm = tmp | mfpr_lpm[lpm] | mfpr_edge[edge];
+			p->mfpr_run = tmp | mfpr_pull[pull];
+		}
+
+		p->config = c; __mfp_config_run(p);
 	}
 
 	mfpr_sync();
@@ -110,7 +173,8 @@ void __init pxa3xx_mfp_init_addr(struct pxa3xx_mfp_addr_map *map)
 
 		do {
 			mfp_table[i].mfpr_off = offset;
-			mfp_table[i].mfpr_val = 0;
+			mfp_table[i].mfpr_run = 0;
+			mfp_table[i].mfpr_lpm = 0;
 			offset += 4; i++;
 		} while ((i <= p->end) && (p->end != -1));
 	}
@@ -120,5 +184,8 @@ void __init pxa3xx_mfp_init_addr(struct pxa3xx_mfp_addr_map *map)
 
 void __init pxa3xx_init_mfp(void)
 {
-	memset(mfp_table, 0, sizeof(mfp_table));
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(mfp_table); i++)
+		mfp_table[i].config = -1;
 }
diff --git a/include/asm-arm/arch-pxa/mfp-pxa3xx.h b/include/asm-arm/arch-pxa/mfp-pxa3xx.h
index 5da1857d5476..1f6b35c015d0 100644
--- a/include/asm-arm/arch-pxa/mfp-pxa3xx.h
+++ b/include/asm-arm/arch-pxa/mfp-pxa3xx.h
@@ -1,6 +1,69 @@
 #ifndef __ASM_ARCH_MFP_PXA3XX_H
 #define __ASM_ARCH_MFP_PXA3XX_H
 
+#define MFPR_BASE	(0x40e10000)
+#define MFPR_SIZE	(PAGE_SIZE)
+
+/* MFPR register bit definitions */
+#define MFPR_PULL_SEL		(0x1 << 15)
+#define MFPR_PULLUP_EN		(0x1 << 14)
+#define MFPR_PULLDOWN_EN	(0x1 << 13)
+#define MFPR_SLEEP_SEL		(0x1 << 9)
+#define MFPR_SLEEP_OE_N		(0x1 << 7)
+#define MFPR_EDGE_CLEAR		(0x1 << 6)
+#define MFPR_EDGE_FALL_EN	(0x1 << 5)
+#define MFPR_EDGE_RISE_EN	(0x1 << 4)
+
+#define MFPR_SLEEP_DATA(x)	((x) << 8)
+#define MFPR_DRIVE(x)		(((x) & 0x7) << 10)
+#define MFPR_AF_SEL(x)		(((x) & 0x7) << 0)
+
+#define MFPR_EDGE_NONE		(0)
+#define MFPR_EDGE_RISE		(MFPR_EDGE_RISE_EN)
+#define MFPR_EDGE_FALL		(MFPR_EDGE_FALL_EN)
+#define MFPR_EDGE_BOTH		(MFPR_EDGE_RISE | MFPR_EDGE_FALL)
+
+/*
+ * Table that determines the low power modes outputs, with actual settings
+ * used in parentheses for don't-care values. Except for the float output,
+ * the configured driven and pulled levels match, so if there is a need for
+ * non-LPM pulled output, the same configuration could probably be used.
+ *
+ * Output value  sleep_oe_n  sleep_data  pullup_en  pulldown_en  pull_sel
+ *                 (bit 7)    (bit 8)    (bit 14)     (bit 13)   (bit 15)
+ *
+ * Input            0          X(0)        X(0)        X(0)       0
+ * Drive 0          0          0           0           X(1)       0
+ * Drive 1          0          1           X(1)        0	  0
+ * Pull hi (1)      1          X(1)        1           0	  0
+ * Pull lo (0)      1          X(0)        0           1	  0
+ * Z (float)        1          X(0)        0           0	  0
+ */
+#define MFPR_LPM_INPUT		(0)
+#define MFPR_LPM_DRIVE_LOW	(MFPR_SLEEP_DATA(0) | MFPR_PULLDOWN_EN)
+#define MFPR_LPM_DRIVE_HIGH    	(MFPR_SLEEP_DATA(1) | MFPR_PULLUP_EN)
+#define MFPR_LPM_PULL_LOW      	(MFPR_LPM_DRIVE_LOW  | MFPR_SLEEP_OE_N)
+#define MFPR_LPM_PULL_HIGH     	(MFPR_LPM_DRIVE_HIGH | MFPR_SLEEP_OE_N)
+#define MFPR_LPM_FLOAT         	(MFPR_SLEEP_OE_N)
+#define MFPR_LPM_MASK		(0xe080)
+
+/*
+ * The pullup and pulldown state of the MFP pin at run mode is by default
+ * determined by the selected alternate function. In case that some buggy
+ * devices need to override this default behavior,  the definitions below
+ * indicates the setting of corresponding MFPR bits
+ *
+ * Definition       pull_sel  pullup_en  pulldown_en
+ * MFPR_PULL_NONE       0         0        0
+ * MFPR_PULL_LOW        1         0        1
+ * MFPR_PULL_HIGH       1         1        0
+ * MFPR_PULL_BOTH       1         1        1
+ */
+#define MFPR_PULL_NONE		(0)
+#define MFPR_PULL_LOW		(MFPR_PULL_SEL | MFPR_PULLDOWN_EN)
+#define MFPR_PULL_BOTH		(MFPR_PULL_LOW | MFPR_PULLUP_EN)
+#define MFPR_PULL_HIGH		(MFPR_PULL_SEL | MFPR_PULLUP_EN)
+
 /* PXA3xx common MFP configurations - processor specific ones defined
  * in mfp-pxa300.h and mfp-pxa320.h
  */
@@ -134,4 +197,56 @@
 #define GPIO5_2_GPIO		MFP_CFG(GPIO5_2, AF0)
 #define GPIO6_2_GPIO		MFP_CFG(GPIO6_2, AF0)
 
+/*
+ * each MFP pin will have a MFPR register, since the offset of the
+ * register varies between processors, the processor specific code
+ * should initialize the pin offsets by pxa3xx_mfp_init_addr()
+ *
+ * pxa3xx_mfp_init_addr - accepts a table of "pxa3xx_mfp_addr_map"
+ * structure, which represents a range of MFP pins from "start" to
+ * "end", with the offset begining at "offset", to define a single
+ * pin, let "end" = -1
+ *
+ * use
+ *
+ * MFP_ADDR_X() to define a range of pins
+ * MFP_ADDR()   to define a single pin
+ * MFP_ADDR_END to signal the end of pin offset definitions
+ */
+struct pxa3xx_mfp_addr_map {
+	unsigned int	start;
+	unsigned int	end;
+	unsigned long	offset;
+};
+
+#define MFP_ADDR_X(start, end, offset) \
+	{ MFP_PIN_##start, MFP_PIN_##end, offset }
+
+#define MFP_ADDR(pin, offset) \
+	{ MFP_PIN_##pin, -1, offset }
+
+#define MFP_ADDR_END	{ MFP_PIN_INVALID, 0 }
+
+/*
+ * pxa3xx_mfp_read()/pxa3xx_mfp_write() - for direct read/write access
+ * to the MFPR register
+ */
+unsigned long pxa3xx_mfp_read(int mfp);
+void pxa3xx_mfp_write(int mfp, unsigned long mfpr_val);
+
+/*
+ * pxa3xx_mfp_config - configure the MFPR registers
+ *
+ * used by board specific initialization code
+ */
+void pxa3xx_mfp_config(unsigned long *mfp_cfgs, int num);
+
+/*
+ * pxa3xx_mfp_init_addr() - initialize the mapping between mfp pin
+ * index and MFPR register offset
+ *
+ * used by processor specific code
+ */
+void __init pxa3xx_mfp_init_addr(struct pxa3xx_mfp_addr_map *);
+void __init pxa3xx_init_mfp(void);
 #endif /* __ASM_ARCH_MFP_PXA3XX_H */
diff --git a/include/asm-arm/arch-pxa/mfp.h b/include/asm-arm/arch-pxa/mfp.h
index 60fbed1b2e89..02f6157396d3 100644
--- a/include/asm-arm/arch-pxa/mfp.h
+++ b/include/asm-arm/arch-pxa/mfp.h
@@ -16,9 +16,6 @@
 #ifndef __ASM_ARCH_MFP_H
 #define __ASM_ARCH_MFP_H
 
-#define MFPR_BASE	(0x40e10000)
-#define MFPR_SIZE	(PAGE_SIZE)
-
 #define mfp_to_gpio(m)	((m) % 128)
 
 /* list of all the configurable MFP pins */
@@ -216,115 +213,22 @@ enum {
 	MFP_PIN_MAX,
 };
 
-/*
- * Table that determines the low power modes outputs, with actual settings
- * used in parentheses for don't-care values. Except for the float output,
- * the configured driven and pulled levels match, so if there is a need for
- * non-LPM pulled output, the same configuration could probably be used.
- *
- * Output value  sleep_oe_n  sleep_data  pullup_en  pulldown_en  pull_sel
- *                 (bit 7)    (bit 8)    (bit 14d)   (bit 13d)
- *
- * Drive 0          0          0           0           X (1)      0
- * Drive 1          0          1           X (1)       0	  0
- * Pull hi (1)      1          X(1)        1           0	  0
- * Pull lo (0)      1          X(0)        0           1	  0
- * Z (float)        1          X(0)        0           0	  0
- */
-#define MFP_LPM_DRIVE_LOW	0x8
-#define MFP_LPM_DRIVE_HIGH    	0x6
-#define MFP_LPM_PULL_HIGH     	0x7
-#define MFP_LPM_PULL_LOW      	0x9
-#define MFP_LPM_FLOAT         	0x1
-#define MFP_LPM_PULL_NEITHER	0x0
-
-/*
- * The pullup and pulldown state of the MFP pin is by default determined by
- * selected alternate function. In case some buggy devices need to override
- * this default behavior,  pxa3xx_mfp_set_pull() can be invoked with one of
- * the following definition as the parameter.
- *
- * Definition       pull_sel  pullup_en  pulldown_en
- * MFP_PULL_HIGH        1         1        0
- * MFP_PULL_LOW         1         0        1
- * MFP_PULL_BOTH        1         1        1
- * MFP_PULL_NONE        1         0        0
- * MFP_PULL_DEFAULT     0         X        X
- *
- * NOTE: pxa3xx_mfp_set_pull() will modify the PULLUP_EN and PULLDOWN_EN
- * bits,  which will cause potential conflicts with the low power mode
- * setting, device drivers should take care of this
- */
-#define MFP_PULL_BOTH		(0x7u)
-#define MFP_PULL_HIGH		(0x6u)
-#define MFP_PULL_LOW		(0x5u)
-#define MFP_PULL_NONE		(0x4u)
-#define MFP_PULL_DEFAULT	(0x0u)
-
-#define MFP_AF0			(0)
-#define MFP_AF1			(1)
-#define MFP_AF2			(2)
-#define MFP_AF3			(3)
-#define MFP_AF4			(4)
-#define MFP_AF5			(5)
-#define MFP_AF6			(6)
-#define MFP_AF7			(7)
-
-#define MFP_DS01X		(0)
-#define MFP_DS02X		(1)
-#define MFP_DS03X		(2)
-#define MFP_DS04X		(3)
-#define MFP_DS06X		(4)
-#define MFP_DS08X		(5)
-#define MFP_DS10X		(6)
-#define MFP_DS12X		(7)
-
-#define MFP_EDGE_BOTH		0x3
-#define MFP_EDGE_RISE		0x2
-#define MFP_EDGE_FALL		0x1
-#define MFP_EDGE_NONE		0x0
-
-#define MFPR_AF_MASK		0x0007
-#define MFPR_DRV_MASK		0x1c00
-#define MFPR_RDH_MASK		0x0200
-#define MFPR_LPM_MASK		0xe180
-#define MFPR_PULL_MASK		0xe000
-#define MFPR_EDGE_MASK		0x0070
-
-#define MFPR_ALT_OFFSET		0
-#define MFPR_ERE_OFFSET		4
-#define MFPR_EFE_OFFSET		5
-#define MFPR_EC_OFFSET		6
-#define MFPR_SON_OFFSET		7
-#define MFPR_SD_OFFSET		8
-#define MFPR_SS_OFFSET		9
-#define MFPR_DRV_OFFSET		10
-#define MFPR_PD_OFFSET		13
-#define MFPR_PU_OFFSET		14
-#define MFPR_PS_OFFSET		15
-
-#define MFPR(af, drv, rdh, lpm, edge) \
-	(((af) & 0x7) | (((drv) & 0x7) << 10) |\
-	 (((rdh) & 0x1) << 9) |\
-	 (((lpm) & 0x3) << 7) |\
-	 (((lpm) & 0x4) << 12)|\
-	 (((lpm) & 0x8) << 10)|\
-	 ((!(edge)) << 6) |\
-	 (((edge) & 0x1) << 5) |\
-	 (((edge) & 0x2) << 3))
-
 /*
  * a possible MFP configuration is represented by a 32-bit integer
- * bit  0..15 - MFPR value (16-bit)
- * bit 16..31 - mfp pin index (used to obtain the MFPR offset)
+ *
+ * bit  0.. 9 - MFP Pin Number (1024 Pins Maximum)
+ * bit 10..12 - Alternate Function Selection
+ * bit 13..15 - Drive Strength
+ * bit 16..18 - Low Power Mode State
+ * bit 19..20 - Low Power Mode Edge Detection
+ * bit 21..22 - Run Mode Pull State
  *
  * to facilitate the definition, the following macros are provided
  *
- * MFPR_DEFAULT - default MFPR value, with
+ * MFP_CFG_DEFAULT - default MFP configuration value, with
  * 		  alternate function = 0,
- * 		  drive strength = fast 1mA (MFP_DS01X)
+ * 		  drive strength = fast 3mA (MFP_DS03X)
  * 		  low power mode = default
- * 		  release dalay hold = false (RDH bit)
  * 		  edge detection = none
  *
  * MFP_CFG	- default MFPR value with alternate function
@@ -334,104 +238,74 @@ enum {
  * 		  low power mode
  * MFP_CFG_X	- default MFPR value with alternate function,
  * 		  pin drive strength and low power mode
- *
- * use
- *
- * MFP_CFG_PIN	- to get the MFP pin index
- * MFP_CFG_VAL	- to get the corresponding MFPR value
  */
 
-typedef uint32_t mfp_cfg_t;
-
-#define MFP_CFG_PIN(mfp_cfg)	(((mfp_cfg) >> 16) & 0xffff)
-#define MFP_CFG_VAL(mfp_cfg)	((mfp_cfg) & 0xffff)
-
-/*
- * MFP register defaults to
- *   drive strength fast 3mA (010'b)
- *   edge detection logic disabled
- *   alternate function 0
- */
-#define MFPR_DEFAULT	(0x0840)
+typedef unsigned long mfp_cfg_t;
+
+#define MFP_PIN(x)		((x) & 0x3ff)
+
+#define MFP_AF0			(0x0 << 10)
+#define MFP_AF1			(0x1 << 10)
+#define MFP_AF2			(0x2 << 10)
+#define MFP_AF3			(0x3 << 10)
+#define MFP_AF4			(0x4 << 10)
+#define MFP_AF5			(0x5 << 10)
+#define MFP_AF6			(0x6 << 10)
+#define MFP_AF7			(0x7 << 10)
+#define MFP_AF_MASK		(0x7 << 10)
+#define MFP_AF(x)		(((x) >> 10) & 0x7)
+
+#define MFP_DS01X		(0x0 << 13)
+#define MFP_DS02X		(0x1 << 13)
+#define MFP_DS03X		(0x2 << 13)
+#define MFP_DS04X		(0x3 << 13)
+#define MFP_DS06X		(0x4 << 13)
+#define MFP_DS08X		(0x5 << 13)
+#define MFP_DS10X		(0x6 << 13)
+#define MFP_DS13X		(0x7 << 13)
+#define MFP_DS_MASK		(0x7 << 13)
+#define MFP_DS(x)		(((x) >> 13) & 0x7)
+
+#define MFP_LPM_INPUT		(0x0 << 16)
+#define MFP_LPM_DRIVE_LOW	(0x1 << 16)
+#define MFP_LPM_DRIVE_HIGH	(0x2 << 16)
+#define MFP_LPM_PULL_LOW	(0x3 << 16)
+#define MFP_LPM_PULL_HIGH	(0x4 << 16)
+#define MFP_LPM_FLOAT		(0x5 << 16)
+#define MFP_LPM_STATE_MASK	(0x7 << 16)
+#define MFP_LPM_STATE(x)	(((x) >> 16) & 0x7)
+
+#define MFP_LPM_EDGE_NONE	(0x0 << 19)
+#define MFP_LPM_EDGE_RISE	(0x1 << 19)
+#define MFP_LPM_EDGE_FALL	(0x2 << 19)
+#define MFP_LPM_EDGE_BOTH	(0x3 << 19)
+#define MFP_LPM_EDGE_MASK	(0x3 << 19)
+#define MFP_LPM_EDGE(x)		(((x) >> 19) & 0x3)
+
+#define MFP_PULL_NONE		(0x0 << 21)
+#define MFP_PULL_LOW		(0x1 << 21)
+#define MFP_PULL_HIGH		(0x2 << 21)
+#define MFP_PULL_BOTH		(0x3 << 21)
+#define MFP_PULL_MASK		(0x3 << 21)
+#define MFP_PULL(x)		(((x) >> 21) & 0x3)
+
+#define MFP_CFG_DEFAULT		(MFP_AF0 | MFP_DS03X | MFP_LPM_INPUT |\
+				 MFP_LPM_EDGE_NONE | MFP_PULL_NONE)
 
 #define MFP_CFG(pin, af)		\
-	((MFP_PIN_##pin << 16) | MFPR_DEFAULT | (MFP_##af))
+	((MFP_CFG_DEFAULT & ~MFP_AF_MASK) |\
+	 (MFP_PIN(MFP_PIN_##pin) | MFP_##af))
 
 #define MFP_CFG_DRV(pin, af, drv)	\
-	((MFP_PIN_##pin << 16) | (MFPR_DEFAULT & ~MFPR_DRV_MASK) |\
-	 ((MFP_##drv) << 10) | (MFP_##af))
+	((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK)) |\
+	 (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv))
 
 #define MFP_CFG_LPM(pin, af, lpm)	\
-	((MFP_PIN_##pin << 16) | (MFPR_DEFAULT & ~MFPR_LPM_MASK) |\
-	 (((MFP_LPM_##lpm) & 0x3) << 7)  |\
-	 (((MFP_LPM_##lpm) & 0x4) << 12) |\
-	 (((MFP_LPM_##lpm) & 0x8) << 10) |\
-	 (MFP_##af))
+	((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_LPM_STATE_MASK)) |\
+	 (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_LPM_##lpm))
 
 #define MFP_CFG_X(pin, af, drv, lpm)	\
-	((MFP_PIN_##pin << 16) |\
-	 (MFPR_DEFAULT & ~(MFPR_DRV_MASK | MFPR_LPM_MASK)) |\
-	 ((MFP_##drv) << 10) | (MFP_##af) |\
-	 (((MFP_LPM_##lpm) & 0x3) << 7)  |\
-	 (((MFP_LPM_##lpm) & 0x4) << 12) |\
-	 (((MFP_LPM_##lpm) & 0x8) << 10))
-
-/*
- * each MFP pin will have a MFPR register, since the offset of the
- * register varies between processors, the processor specific code
- * should initialize the pin offsets by pxa3xx_mfp_init_addr()
- *
- * pxa3xx_mfp_init_addr - accepts a table of "pxa3xx_mfp_addr_map"
- * structure, which represents a range of MFP pins from "start" to
- * "end", with the offset begining at "offset", to define a single
- * pin, let "end" = -1
- *
- * use
- *
- * MFP_ADDR_X() to define a range of pins
- * MFP_ADDR()   to define a single pin
- * MFP_ADDR_END to signal the end of pin offset definitions
- */
-struct pxa3xx_mfp_addr_map {
-	unsigned int	start;
-	unsigned int	end;
-	unsigned long	offset;
-};
-
-#define MFP_ADDR_X(start, end, offset) \
-	{ MFP_PIN_##start, MFP_PIN_##end, offset }
-
-#define MFP_ADDR(pin, offset) \
-	{ MFP_PIN_##pin, -1, offset }
-
-#define MFP_ADDR_END	{ MFP_PIN_INVALID, 0 }
-
-struct pxa3xx_mfp_pin {
-	unsigned long	mfpr_off;	/* MFPRxx register offset */
-	unsigned long	mfpr_val;	/* MFPRxx register value */
-};
-
-/*
- * pxa3xx_mfp_read()/pxa3xx_mfp_write() - for direct read/write access
- * to the MFPR register
- */
-unsigned long pxa3xx_mfp_read(int mfp);
-void pxa3xx_mfp_write(int mfp, unsigned long mfpr_val);
-
-/*
- * pxa3xx_mfp_config - configure the MFPR registers
- *
- * used by board specific initialization code
- */
-void pxa3xx_mfp_config(mfp_cfg_t *mfp_cfgs, int num);
-
-/*
- * pxa3xx_mfp_init_addr() - initialize the mapping between mfp pin
- * index and MFPR register offset
- *
- * used by processor specific code
- */
-void __init pxa3xx_mfp_init_addr(struct pxa3xx_mfp_addr_map *);
-void __init pxa3xx_init_mfp(void);
+	((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK | MFP_LPM_STATE_MASK)) |\
+	 (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv | MFP_LPM_##lpm))
 
 #endif /* __ASM_ARCH_MFP_H */
-- 
cgit v1.2.3-59-g8ed1b


From d4fc858f9cfec5200a957c305d61ffc28c5d7796 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Tue, 8 Jan 2008 15:12:22 +0000
Subject: [ARM] pxa: program MFPs for low power mode when suspending

Hook the MFP code into the power management code so that the MFPs can
be reconfigured when suspending and resuming.  However, note the FIXME
- low power mode MFP configuration may depend on the system state being
entered.

Also note that we have to clear any detected edge events prior to
entering a low power mode - otherwise we immediately wake up.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/mfp.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 57 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/mfp.c b/arch/arm/mach-pxa/mfp.c
index c66b1cd7df64..ec1b2d8f61c4 100644
--- a/arch/arm/mach-pxa/mfp.c
+++ b/arch/arm/mach-pxa/mfp.c
@@ -17,6 +17,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/sysdev.h>
 
 #include <asm/hardware.h>
 #include <asm/arch/mfp.h>
@@ -87,8 +88,13 @@ static inline void __mfp_config_run(struct pxa3xx_mfp_pin *p)
 
 static inline void __mfp_config_lpm(struct pxa3xx_mfp_pin *p)
 {
-	if (mfp_configured(p) && p->mfpr_lpm != p->mfpr_run)
-		mfpr_writel(p->mfpr_off, p->mfpr_lpm);
+	if (mfp_configured(p)) {
+		unsigned long mfpr_clr = (p->mfpr_run & ~MFPR_EDGE_BOTH) | MFPR_EDGE_CLEAR;
+		if (mfpr_clr != p->mfpr_run)
+			mfpr_writel(p->mfpr_off, mfpr_clr);
+		if (p->mfpr_lpm != mfpr_clr)
+			mfpr_writel(p->mfpr_off, p->mfpr_lpm);
+	}
 }
 
 void pxa3xx_mfp_config(unsigned long *mfp_cfgs, int num)
@@ -189,3 +195,52 @@ void __init pxa3xx_init_mfp(void)
 	for (i = 0; i < ARRAY_SIZE(mfp_table); i++)
 		mfp_table[i].config = -1;
 }
+
+#ifdef CONFIG_PM
+/*
+ * Configure the MFPs appropriately for suspend/resume.
+ * FIXME: this should probably depend on which system state we're
+ * entering - for instance, we might not want to place MFP pins in
+ * a pull-down mode if they're an active low chip select, and we're
+ * just entering standby.
+ */
+static int pxa3xx_mfp_suspend(struct sys_device *d, pm_message_t state)
+{
+	int pin;
+
+	for (pin = 0; pin < ARRAY_SIZE(mfp_table); pin++) {
+		struct pxa3xx_mfp_pin *p = &mfp_table[pin];
+		__mfp_config_lpm(p);
+	}
+	return 0;
+}
+
+static int pxa3xx_mfp_resume(struct sys_device *d)
+{
+	int pin;
+
+	for (pin = 0; pin < ARRAY_SIZE(mfp_table); pin++) {
+		struct pxa3xx_mfp_pin *p = &mfp_table[pin];
+		__mfp_config_run(p);
+	}
+	return 0;
+}
+
+static struct sysdev_class mfp_sysclass = {
+	set_kset_name("mfp"),
+	.suspend	= pxa3xx_mfp_suspend,
+	.resume 	= pxa3xx_mfp_resume,
+};
+
+static struct sys_device mfp_device = {
+	.id		= 0,
+	.cls		= &mfp_sysclass,
+};
+
+static int __init mfp_init_devicefs(void)
+{
+	sysdev_class_register(&mfp_sysclass);
+	return sysdev_register(&mfp_device);
+}
+device_initcall(mfp_init_devicefs);
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From a10476d4ca52039a9240ac26376e15308b748b19 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Tue, 8 Jan 2008 15:25:01 +0000
Subject: [ARM] pxa: Add zylonite MFP wakeup configurations

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/zylonite_pxa300.c | 38 ++++++++++++++++++-------------------
 arch/arm/mach-pxa/zylonite_pxa320.c | 28 +++++++++++++--------------
 2 files changed, 33 insertions(+), 33 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/zylonite_pxa300.c b/arch/arm/mach-pxa/zylonite_pxa300.c
index 0e159a3024c0..6ac04c09b0e9 100644
--- a/arch/arm/mach-pxa/zylonite_pxa300.c
+++ b/arch/arm/mach-pxa/zylonite_pxa300.c
@@ -53,13 +53,13 @@ static mfp_cfg_t common_mfp_cfg[] __initdata = {
 
 	/* BTUART */
 	GPIO111_UART2_RTS,
-	GPIO112_UART2_RXD,
+	GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
 	GPIO113_UART2_TXD,
-	GPIO114_UART2_CTS,
+	GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
 
 	/* STUART */
 	GPIO109_UART3_TXD,
-	GPIO110_UART3_RXD,
+	GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
 
 	/* AC97 */
 	GPIO23_AC97_nACRESET,
@@ -70,16 +70,16 @@ static mfp_cfg_t common_mfp_cfg[] __initdata = {
 	GPIO28_AC97_SYNC,
 
 	/* Keypad */
-	GPIO107_KP_DKIN_0,
-	GPIO108_KP_DKIN_1,
-	GPIO115_KP_MKIN_0,
-	GPIO116_KP_MKIN_1,
-	GPIO117_KP_MKIN_2,
-	GPIO118_KP_MKIN_3,
-	GPIO119_KP_MKIN_4,
-	GPIO120_KP_MKIN_5,
-	GPIO2_2_KP_MKIN_6,
-	GPIO3_2_KP_MKIN_7,
+	GPIO107_KP_DKIN_0 | MFP_LPM_EDGE_BOTH,
+	GPIO108_KP_DKIN_1 | MFP_LPM_EDGE_BOTH,
+	GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
+	GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
+	GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
+	GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
+	GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
+	GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
+	GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
+	GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
 	GPIO121_KP_MKOUT_0,
 	GPIO122_KP_MKOUT_1,
 	GPIO123_KP_MKOUT_2,
@@ -91,7 +91,7 @@ static mfp_cfg_t common_mfp_cfg[] __initdata = {
 
 	/* MMC1 */
 	GPIO3_MMC1_DAT0,
-	GPIO4_MMC1_DAT1,
+	GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
 	GPIO5_MMC1_DAT2,
 	GPIO6_MMC1_DAT3,
 	GPIO7_MMC1_CLK,
@@ -100,7 +100,7 @@ static mfp_cfg_t common_mfp_cfg[] __initdata = {
 
 	/* MMC2 */
 	GPIO9_MMC2_DAT0,
-	GPIO10_MMC2_DAT1,
+	GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
 	GPIO11_MMC2_DAT2,
 	GPIO12_MMC2_DAT3,
 	GPIO13_MMC2_CLK,
@@ -109,12 +109,12 @@ static mfp_cfg_t common_mfp_cfg[] __initdata = {
 
 static mfp_cfg_t pxa300_mfp_cfg[] __initdata = {
 	/* FFUART */
-	GPIO30_UART1_RXD,
+	GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
 	GPIO31_UART1_TXD,
 	GPIO32_UART1_CTS,
 	GPIO37_UART1_RTS,
 	GPIO33_UART1_DCD,
-	GPIO34_UART1_DSR,
+	GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
 	GPIO35_UART1_RI,
 	GPIO36_UART1_DTR,
 
@@ -125,7 +125,7 @@ static mfp_cfg_t pxa300_mfp_cfg[] __initdata = {
 
 static mfp_cfg_t pxa310_mfp_cfg[] __initdata = {
 	/* FFUART */
-	GPIO99_UART1_RXD,
+	GPIO99_UART1_RXD | MFP_LPM_EDGE_FALL,
 	GPIO100_UART1_TXD,
 	GPIO101_UART1_CTS,
 	GPIO106_UART1_RTS,
@@ -136,7 +136,7 @@ static mfp_cfg_t pxa310_mfp_cfg[] __initdata = {
 
 	/* MMC3 */
 	GPIO7_2_MMC3_DAT0,
-	GPIO8_2_MMC3_DAT1,
+	GPIO8_2_MMC3_DAT1 | MFP_LPM_EDGE_BOTH,
 	GPIO9_2_MMC3_DAT2,
 	GPIO10_2_MMC3_DAT3,
 	GPIO103_MMC3_CLK,
diff --git a/arch/arm/mach-pxa/zylonite_pxa320.c b/arch/arm/mach-pxa/zylonite_pxa320.c
index 1036da3315d8..dfa79992b8ab 100644
--- a/arch/arm/mach-pxa/zylonite_pxa320.c
+++ b/arch/arm/mach-pxa/zylonite_pxa320.c
@@ -51,11 +51,11 @@ static mfp_cfg_t mfp_cfg[] __initdata = {
 	GPIO17_2_LCD_BIAS,
 
 	/* FFUART */
-	GPIO41_UART1_RXD,
+	GPIO41_UART1_RXD | MFP_LPM_EDGE_FALL,
 	GPIO42_UART1_TXD,
 	GPIO43_UART1_CTS,
 	GPIO44_UART1_DCD,
-	GPIO45_UART1_DSR,
+	GPIO45_UART1_DSR | MFP_LPM_EDGE_FALL,
 	GPIO46_UART1_RI,
 	GPIO47_UART1_DTR,
 	GPIO48_UART1_RTS,
@@ -73,16 +73,16 @@ static mfp_cfg_t mfp_cfg[] __initdata = {
 	GPIO33_I2C_SDA,
 
 	/* Keypad */
-	GPIO105_KP_DKIN_0,
-	GPIO106_KP_DKIN_1,
-	GPIO113_KP_MKIN_0,
-	GPIO114_KP_MKIN_1,
-	GPIO115_KP_MKIN_2,
-	GPIO116_KP_MKIN_3,
-	GPIO117_KP_MKIN_4,
-	GPIO118_KP_MKIN_5,
-	GPIO119_KP_MKIN_6,
-	GPIO120_KP_MKIN_7,
+	GPIO105_KP_DKIN_0 | MFP_LPM_EDGE_BOTH,
+	GPIO106_KP_DKIN_1 | MFP_LPM_EDGE_BOTH,
+	GPIO113_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
+	GPIO114_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
+	GPIO115_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
+	GPIO116_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
+	GPIO117_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
+	GPIO118_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
+	GPIO119_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
+	GPIO120_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
 	GPIO121_KP_MKOUT_0,
 	GPIO122_KP_MKOUT_1,
 	GPIO123_KP_MKOUT_2,
@@ -98,7 +98,7 @@ static mfp_cfg_t mfp_cfg[] __initdata = {
 
 	/* MMC1 */
 	GPIO18_MMC1_DAT0,
-	GPIO19_MMC1_DAT1,
+	GPIO19_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
 	GPIO20_MMC1_DAT2,
 	GPIO21_MMC1_DAT3,
 	GPIO22_MMC1_CLK,
@@ -107,7 +107,7 @@ static mfp_cfg_t mfp_cfg[] __initdata = {
 
 	/* MMC2 */
 	GPIO24_MMC2_DAT0,
-	GPIO25_MMC2_DAT1,
+	GPIO25_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
 	GPIO26_MMC2_DAT2,
 	GPIO27_MMC2_DAT3,
 	GPIO28_MMC2_CLK,
-- 
cgit v1.2.3-59-g8ed1b


From 7b5dea12346f98b0624e00ef585246bfec8b0959 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Mon, 7 Jan 2008 22:18:30 +0000
Subject: [ARM] pxa: Add PXA3 standby code hooked into the IRQ wake scheme

Wakeup sources on PXA3 are enabled at two levels.  First, the MFP
configuration has to be set to enable which edges a specific pin
will trigger a wakeup.  The pin also has to be routed to a functional
unit.  Lastly, the functional unit must be enabled as a wakeup source
in the appropriate AD*ER registers (AD2D0ER for standby resume.)

This doesn't fit well with the IRQ wake scheme - we currently do a
best effort conversion from IRQ numbers to functional unit wake enable
bits.  For instance, there's several USB client related enable bits but
there's no corresponding IRQs to determine which you'd want.  Conversely,
there's a single enable bit covering several functional units.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/pxa3xx.c             | 223 +++++++++++++++++++++++++++++++++
 arch/arm/mach-pxa/standby.S            |  80 ++++++++++++
 include/asm-arm/arch-pxa/pxa3xx-regs.h |  86 +++++++++++++
 3 files changed, 389 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index fcb2359b3867..0b2a15ed3999 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -19,6 +19,7 @@
 #include <linux/pm.h>
 #include <linux/platform_device.h>
 #include <linux/irq.h>
+#include <linux/io.h>
 
 #include <asm/hardware.h>
 #include <asm/arch/pxa3xx-regs.h>
@@ -201,6 +202,225 @@ static struct clk pxa3xx_clks[] = {
 	PXA3xx_CKEN("MMCCLK", MMC3, 19500000, 0, &pxa3xx_device_mci3.dev),
 };
 
+#ifdef CONFIG_PM
+#define SLEEP_SAVE_SIZE	4
+
+#define ISRAM_START	0x5c000000
+#define ISRAM_SIZE	SZ_256K
+
+static void __iomem *sram;
+static unsigned long wakeup_src;
+
+static void pxa3xx_cpu_pm_save(unsigned long *sleep_save)
+{
+	pr_debug("PM: CKENA=%08x CKENB=%08x\n", CKENA, CKENB);
+
+	if (CKENA & (1 << CKEN_USBH)) {
+		printk(KERN_ERR "PM: USB host clock not stopped?\n");
+		CKENA &= ~(1 << CKEN_USBH);
+	}
+//	CKENA |= 1 << (CKEN_ISC & 31);
+
+	/*
+	 * Low power modes require the HSIO2 clock to be enabled.
+	 */
+	CKENB |= 1 << (CKEN_HSIO2 & 31);
+}
+
+static void pxa3xx_cpu_pm_restore(unsigned long *sleep_save)
+{
+	CKENB &= ~(1 << (CKEN_HSIO2 & 31));
+}
+
+/*
+ * Enter a standby mode (S0D1C2 or S0D2C2).  Upon wakeup, the dynamic
+ * memory controller has to be reinitialised, so we place some code
+ * in the SRAM to perform this function.
+ *
+ * We disable FIQs across the standby - otherwise, we might receive a
+ * FIQ while the SDRAM is unavailable.
+ */
+static void pxa3xx_cpu_standby(unsigned int pwrmode)
+{
+	extern const char pm_enter_standby_start[], pm_enter_standby_end[];
+	void (*fn)(unsigned int) = (void __force *)(sram + 0x8000);
+
+	memcpy_toio(sram + 0x8000, pm_enter_standby_start,
+		    pm_enter_standby_end - pm_enter_standby_start);
+
+	AD2D0SR = ~0;
+	AD2D1SR = ~0;
+	AD2D0ER = wakeup_src;
+	AD2D1ER = 0;
+	ASCR = ASCR;
+	ARSR = ARSR;
+
+	local_fiq_disable();
+	fn(pwrmode);
+	local_fiq_enable();
+
+	AD2D0ER = 0;
+	AD2D1ER = 0;
+
+	printk("PM: AD2D0SR=%08x ASCR=%08x\n", AD2D0SR, ASCR);
+}
+
+static void pxa3xx_cpu_pm_enter(suspend_state_t state)
+{
+	/*
+	 * Don't sleep if no wakeup sources are defined
+	 */
+	if (wakeup_src == 0)
+		return;
+
+	switch (state) {
+	case PM_SUSPEND_STANDBY:
+		pxa3xx_cpu_standby(PXA3xx_PM_S0D2C2);
+		break;
+
+	case PM_SUSPEND_MEM:
+		break;
+	}
+}
+
+static int pxa3xx_cpu_pm_valid(suspend_state_t state)
+{
+	return state == PM_SUSPEND_MEM || state == PM_SUSPEND_STANDBY;
+}
+
+static struct pxa_cpu_pm_fns pxa3xx_cpu_pm_fns = {
+	.save_size	= SLEEP_SAVE_SIZE,
+	.save		= pxa3xx_cpu_pm_save,
+	.restore	= pxa3xx_cpu_pm_restore,
+	.valid		= pxa3xx_cpu_pm_valid,
+	.enter		= pxa3xx_cpu_pm_enter,
+};
+
+static void __init pxa3xx_init_pm(void)
+{
+	sram = ioremap(ISRAM_START, ISRAM_SIZE);
+	if (!sram) {
+		printk(KERN_ERR "Unable to map ISRAM: disabling standby/suspend\n");
+		return;
+	}
+
+	/*
+	 * Since we copy wakeup code into the SRAM, we need to ensure
+	 * that it is preserved over the low power modes.  Note: bit 8
+	 * is undocumented in the developer manual, but must be set.
+	 */
+	AD1R |= ADXR_L2 | ADXR_R0;
+	AD2R |= ADXR_L2 | ADXR_R0;
+	AD3R |= ADXR_L2 | ADXR_R0;
+
+	/*
+	 * Clear the resume enable registers.
+	 */
+	AD1D0ER = 0;
+	AD2D0ER = 0;
+	AD2D1ER = 0;
+	AD3ER = 0;
+
+	pxa_cpu_pm_fns = &pxa3xx_cpu_pm_fns;
+}
+
+static int pxa3xx_set_wake(unsigned int irq, unsigned int on)
+{
+	unsigned long flags, mask = 0;
+
+	switch (irq) {
+	case IRQ_SSP3:
+		mask = ADXER_MFP_WSSP3;
+		break;
+	case IRQ_MSL:
+		mask = ADXER_WMSL0;
+		break;
+	case IRQ_USBH2:
+	case IRQ_USBH1:
+		mask = ADXER_WUSBH;
+		break;
+	case IRQ_KEYPAD:
+		mask = ADXER_WKP;
+		break;
+	case IRQ_AC97:
+		mask = ADXER_MFP_WAC97;
+		break;
+	case IRQ_USIM:
+		mask = ADXER_WUSIM0;
+		break;
+	case IRQ_SSP2:
+		mask = ADXER_MFP_WSSP2;
+		break;
+	case IRQ_I2C:
+		mask = ADXER_MFP_WI2C;
+		break;
+	case IRQ_STUART:
+		mask = ADXER_MFP_WUART3;
+		break;
+	case IRQ_BTUART:
+		mask = ADXER_MFP_WUART2;
+		break;
+	case IRQ_FFUART:
+		mask = ADXER_MFP_WUART1;
+		break;
+	case IRQ_MMC:
+		mask = ADXER_MFP_WMMC1;
+		break;
+	case IRQ_SSP:
+		mask = ADXER_MFP_WSSP1;
+		break;
+	case IRQ_RTCAlrm:
+		mask = ADXER_WRTC;
+		break;
+	case IRQ_SSP4:
+		mask = ADXER_MFP_WSSP4;
+		break;
+	case IRQ_TSI:
+		mask = ADXER_WTSI;
+		break;
+	case IRQ_USIM2:
+		mask = ADXER_WUSIM1;
+		break;
+	case IRQ_MMC2:
+		mask = ADXER_MFP_WMMC2;
+		break;
+	case IRQ_NAND:
+		mask = ADXER_MFP_WFLASH;
+		break;
+	case IRQ_USB2:
+		mask = ADXER_WUSB2;
+		break;
+	case IRQ_WAKEUP0:
+		mask = ADXER_WEXTWAKE0;
+		break;
+	case IRQ_WAKEUP1:
+		mask = ADXER_WEXTWAKE1;
+		break;
+	case IRQ_MMC3:
+		mask = ADXER_MFP_GEN12;
+		break;
+	}
+
+	local_irq_save(flags);
+	if (on)
+		wakeup_src |= mask;
+	else
+		wakeup_src &= ~mask;
+	local_irq_restore(flags);
+
+	return 0;
+}
+
+static void pxa3xx_init_irq_pm(void)
+{
+	pxa_init_irq_set_wake(pxa3xx_set_wake);
+}
+
+#else
+static inline void pxa3xx_init_pm(void) {}
+static inline void pxa3xx_init_irq_pm(void) {}
+#endif
+
 void __init pxa3xx_init_irq(void)
 {
 	/* enable CP6 access */
@@ -212,6 +432,7 @@ void __init pxa3xx_init_irq(void)
 	pxa_init_irq_low();
 	pxa_init_irq_high();
 	pxa_init_irq_gpio(128);
+	pxa3xx_init_irq_pm();
 }
 
 /*
@@ -241,6 +462,8 @@ static int __init pxa3xx_init(void)
 		if ((ret = pxa_init_dma(32)))
 			return ret;
 
+		pxa3xx_init_pm();
+
 		return platform_add_devices(devices, ARRAY_SIZE(devices));
 	}
 	return 0;
diff --git a/arch/arm/mach-pxa/standby.S b/arch/arm/mach-pxa/standby.S
index 434a6ab0eca5..167412e6bec8 100644
--- a/arch/arm/mach-pxa/standby.S
+++ b/arch/arm/mach-pxa/standby.S
@@ -32,3 +32,83 @@ ENTRY(pxa_cpu_standby)
 	mov	pc, lr
 
 #endif
+
+#ifdef CONFIG_PXA3xx
+
+#define MDCNFG		0x0000
+#define MDCNFG_DMCEN	(1 << 30)
+#define DDR_HCAL	0x0060
+#define DDR_HCAL_HCRNG	0x1f
+#define DDR_HCAL_HCPROG	(1 << 28)
+#define DDR_HCAL_HCEN	(1 << 31)
+#define DMCIER		0x0070
+#define DMCIER_EDLP	(1 << 29)
+#define DMCISR		0x0078
+#define RCOMP		0x0100
+#define RCOMP_SWEVAL	(1 << 31)
+
+ENTRY(pm_enter_standby_start)
+	mov	r1, #0xf6000000		@ DMEMC_REG_BASE (MDCNFG)
+	add	r1, r1, #0x00100000
+
+	/*
+	 * Preload the TLB entry for accessing the dynamic memory
+	 * controller registers.  Note that page table lookups will
+	 * fail until the dynamic memory controller has been
+	 * reinitialised - and that includes MMU page table walks.
+	 * This also means that only the dynamic memory controller
+	 * can be reliably accessed in the code following standby.
+	 */
+	ldr	r2, [r1]		@ Dummy read MDCNFG
+
+	mcr	p14, 0, r0, c7, c0, 0
+	.rept	8
+	nop
+	.endr
+
+	ldr	r0, [r1, #DDR_HCAL]	@ Clear (and wait for) HCEN
+	bic	r0, r0, #DDR_HCAL_HCEN
+	str	r0, [r1, #DDR_HCAL]
+1:	ldr	r0, [r1, #DDR_HCAL]
+	tst	r0, #DDR_HCAL_HCEN
+	bne	1b
+
+	ldr	r0, [r1, #RCOMP]	@ Initiate RCOMP
+	orr	r0, r0, #RCOMP_SWEVAL
+	str	r0, [r1, #RCOMP]
+
+	mov	r0, #~0			@ Clear interrupts
+	str	r0, [r1, #DMCISR]
+
+	ldr	r0, [r1, #DMCIER]	@ set DMIER[EDLP]
+	orr	r0, r0, #DMCIER_EDLP
+	str	r0, [r1, #DMCIER]
+
+	ldr	r0, [r1, #DDR_HCAL]	@ clear HCRNG, set HCPROG, HCEN
+	bic	r0, r0, #DDR_HCAL_HCRNG
+	orr	r0, r0, #DDR_HCAL_HCEN | DDR_HCAL_HCPROG
+	str	r0, [r1, #DDR_HCAL]
+
+1:	ldr	r0, [r1, #DMCISR]
+	tst	r0, #DMCIER_EDLP
+	beq	1b
+
+	ldr	r0, [r1, #MDCNFG]	@ set MDCNFG[DMCEN]
+	orr	r0, r0, #MDCNFG_DMCEN
+	str	r0, [r1, #MDCNFG]
+1:	ldr	r0, [r1, #MDCNFG]
+	tst	r0, #MDCNFG_DMCEN
+	beq	1b
+
+	ldr	r0, [r1, #DDR_HCAL]	@ set DDR_HCAL[HCRNG]
+	orr	r0, r0, #2 @ HCRNG
+	str	r0, [r1, #DDR_HCAL]
+
+	ldr	r0, [r1, #DMCIER]	@ Clear the interrupt
+	bic	r0, r0, #0x20000000
+	str	r0, [r1, #DMCIER]
+
+	mov	pc, lr
+ENTRY(pm_enter_standby_end)
+
+#endif
diff --git a/include/asm-arm/arch-pxa/pxa3xx-regs.h b/include/asm-arm/arch-pxa/pxa3xx-regs.h
index 3900a0ca0bc0..66d54119757c 100644
--- a/include/asm-arm/arch-pxa/pxa3xx-regs.h
+++ b/include/asm-arm/arch-pxa/pxa3xx-regs.h
@@ -13,6 +13,92 @@
 #ifndef __ASM_ARCH_PXA3XX_REGS_H
 #define __ASM_ARCH_PXA3XX_REGS_H
 
+/*
+ * Slave Power Managment Unit
+ */
+#define ASCR		__REG(0x40f40000)	/* Application Subsystem Power Status/Configuration */
+#define ARSR		__REG(0x40f40004)	/* Application Subsystem Reset Status */
+#define AD3ER		__REG(0x40f40008)	/* Application Subsystem Wake-Up from D3 Enable */
+#define AD3SR		__REG(0x40f4000c)	/* Application Subsystem Wake-Up from D3 Status */
+#define AD2D0ER		__REG(0x40f40010)	/* Application Subsystem Wake-Up from D2 to D0 Enable */
+#define AD2D0SR		__REG(0x40f40014)	/* Application Subsystem Wake-Up from D2 to D0 Status */
+#define AD2D1ER		__REG(0x40f40018)	/* Application Subsystem Wake-Up from D2 to D1 Enable */
+#define AD2D1SR		__REG(0x40f4001c)	/* Application Subsystem Wake-Up from D2 to D1 Status */
+#define AD1D0ER		__REG(0x40f40020)	/* Application Subsystem Wake-Up from D1 to D0 Enable */
+#define AD1D0SR		__REG(0x40f40024)	/* Application Subsystem Wake-Up from D1 to D0 Status */
+#define AGENP		__REG(0x40f4002c)	/* Application Subsystem General Purpose */
+#define AD3R		__REG(0x40f40030)	/* Application Subsystem D3 Configuration */
+#define AD2R		__REG(0x40f40034)	/* Application Subsystem D2 Configuration */
+#define AD1R		__REG(0x40f40038)	/* Application Subsystem D1 Configuration */
+
+/*
+ * Application Subsystem Configuration bits.
+ */
+#define ASCR_RDH		(1 << 31)
+#define ASCR_D1S		(1 << 2)
+#define ASCR_D2S		(1 << 1)
+#define ASCR_D3S		(1 << 0)
+
+/*
+ * Application Reset Status bits.
+ */
+#define ARSR_GPR		(1 << 3)
+#define ARSR_LPMR		(1 << 2)
+#define ARSR_WDT		(1 << 1)
+#define ARSR_HWR		(1 << 0)
+
+/*
+ * Application Subsystem Wake-Up bits.
+ */
+#define ADXER_WRTC		(1 << 31)	/* RTC */
+#define ADXER_WOST		(1 << 30)	/* OS Timer */
+#define ADXER_WTSI		(1 << 29)	/* Touchscreen */
+#define ADXER_WUSBH		(1 << 28)	/* USB host */
+#define ADXER_WUSB2		(1 << 26)	/* USB client 2.0 */
+#define ADXER_WMSL0		(1 << 24)	/* MSL port 0*/
+#define ADXER_WDMUX3		(1 << 23)	/* USB EDMUX3 */
+#define ADXER_WDMUX2		(1 << 22)	/* USB EDMUX2 */
+#define ADXER_WKP		(1 << 21)	/* Keypad */
+#define ADXER_WUSIM1		(1 << 20)	/* USIM Port 1 */
+#define ADXER_WUSIM0		(1 << 19)	/* USIM Port 0 */
+#define ADXER_WOTG		(1 << 16)	/* USBOTG input */
+#define ADXER_MFP_WFLASH	(1 << 15)	/* MFP: Data flash busy */
+#define ADXER_MFP_GEN12		(1 << 14)	/* MFP: MMC3/GPIO/OST inputs */
+#define ADXER_MFP_WMMC2		(1 << 13)	/* MFP: MMC2 */
+#define ADXER_MFP_WMMC1		(1 << 12)	/* MFP: MMC1 */
+#define ADXER_MFP_WI2C		(1 << 11)	/* MFP: I2C */
+#define ADXER_MFP_WSSP4		(1 << 10)	/* MFP: SSP4 */
+#define ADXER_MFP_WSSP3		(1 << 9)	/* MFP: SSP3 */
+#define ADXER_MFP_WMAXTRIX	(1 << 8)	/* MFP: matrix keypad */
+#define ADXER_MFP_WUART3	(1 << 7)	/* MFP: UART3 */
+#define ADXER_MFP_WUART2	(1 << 6)	/* MFP: UART2 */
+#define ADXER_MFP_WUART1	(1 << 5)	/* MFP: UART1 */
+#define ADXER_MFP_WSSP2		(1 << 4)	/* MFP: SSP2 */
+#define ADXER_MFP_WSSP1		(1 << 3)	/* MFP: SSP1 */
+#define ADXER_MFP_WAC97		(1 << 2)	/* MFP: AC97 */
+#define ADXER_WEXTWAKE1		(1 << 1)	/* External Wake 1 */
+#define ADXER_WEXTWAKE0		(1 << 0)	/* External Wake 0 */
+
+/*
+ * AD3R/AD2R/AD1R bits.  R2-R5 are only defined for PXA320.
+ */
+#define ADXR_L2			(1 << 8)
+#define ADXR_R5			(1 << 5)
+#define ADXR_R4			(1 << 4)
+#define ADXR_R3			(1 << 3)
+#define ADXR_R2			(1 << 2)
+#define ADXR_R1			(1 << 1)
+#define ADXR_R0			(1 << 0)
+
+/*
+ * Values for PWRMODE CP15 register
+ */
+#define PXA3xx_PM_S3D4C4	0x07	/* aka deep sleep */
+#define PXA3xx_PM_S2D3C4	0x06	/* aka sleep */
+#define PXA3xx_PM_S0D2C2	0x03	/* aka standby */
+#define PXA3xx_PM_S0D1C2	0x02	/* aka LCD refresh */
+#define PXA3xx_PM_S0D0C1	0x01
+
 /*
  * Application Subsystem Clock
  */
-- 
cgit v1.2.3-59-g8ed1b


From fd8e7af8d0fd3febc87607214d5dd545089edc71 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Wed, 23 Jan 2008 12:33:31 +0000
Subject: [ARM] pxa: Avoid fiddling with CKEN register on suspend

The PXA manuals indicate that when in standby or sleep modes, clocks to
peripherals are shut off by the processor itself.  Eg:

PXA270 standby: "In standby mode, all clocks are disabled except those
 for the power manager and the RTC."

PXA270 sleep: "In sleep mode, all clocks are disabled to the processor
 and to all peripherals except the RTC."

PXA255 sleep: "In Sleep Mode, all processor and peripheral clocks are
 disabled, except the RTC."

Therefore, it should be safe to leave the clock enable register alone
prior to entering low power modes for these SoCs.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/pxa25x.c | 2 --
 arch/arm/mach-pxa/pxa27x.c | 6 ------
 2 files changed, 8 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 962cfbb5500e..73a5f068e167 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -216,8 +216,6 @@ static void pxa25x_cpu_pm_restore(unsigned long *sleep_save)
 
 static void pxa25x_cpu_pm_enter(suspend_state_t state)
 {
-	CKEN = 0;
-
 	switch (state) {
 	case PM_SUSPEND_MEM:
 		/* set resume return address */
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index f33c9d7ff87e..db0c4c6fea9b 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -265,12 +265,6 @@ void pxa27x_cpu_pm_enter(suspend_state_t state)
 {
 	extern void pxa_cpu_standby(void);
 
-	if (state == PM_SUSPEND_STANDBY)
-		CKEN = (1 << CKEN_MEMC) | (1 << CKEN_OSTIMER) |
-			(1 << CKEN_LCD) | (1 << CKEN_PWM0);
-	else
-		CKEN = (1 << CKEN_MEMC) | (1 << CKEN_OSTIMER);
-
 	/* ensure voltage-change sequencer not initiated, which hangs */
 	PCFR &= ~PCFR_FVC;
 
-- 
cgit v1.2.3-59-g8ed1b


From dd01b2fc79a567ae03d0c96ddf61eb4de729d36d Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Wed, 23 Jan 2008 12:34:16 +0000
Subject: [ARM] pxa: fix PXA27x resume

When PXA27x wakes up, tick_resume_oneshot() tries to set a timer
interrupt to occur immediately.  Since PXA27x requires at least
MIN_OSCR_DELTA, this causes us to flag an error.

tick_program_event() then increments the next event time by
min_delta_ns.  However, by the time we get back to programming
the next event, the OSCR has incremented such that we fail again.
We repeatedly retry, but the OSCR is too fast for us - we never
catch up, so we never break out of the loop - resulting in us
never apparantly resuming.

Fix this by doubling min_delta_ns.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/time.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c
index ac0bbad35238..7b7c0179795b 100644
--- a/arch/arm/mach-pxa/time.c
+++ b/arch/arm/mach-pxa/time.c
@@ -169,7 +169,7 @@ static void __init pxa_timer_init(void)
 	ckevt_pxa_osmr0.max_delta_ns =
 		clockevent_delta2ns(0x7fffffff, &ckevt_pxa_osmr0);
 	ckevt_pxa_osmr0.min_delta_ns =
-		clockevent_delta2ns(MIN_OSCR_DELTA, &ckevt_pxa_osmr0) + 1;
+		clockevent_delta2ns(MIN_OSCR_DELTA * 2, &ckevt_pxa_osmr0) + 1;
 
 	cksrc_pxa_oscr0.mult =
 		clocksource_hz2mult(clock_tick_rate, cksrc_pxa_oscr0.shift);
-- 
cgit v1.2.3-59-g8ed1b


From 512f03fdae58b96568bac1beee4d3d3b34d4ead4 Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Mon, 14 Jan 2008 15:50:54 +0800
Subject: [ARM] pxa: skip registers saving/restoring if entering standby mode

registers are retained during standby mode, thus it's not necessary
to save/restore and checksum

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/pm.c | 33 ++++++++++++++++++---------------
 1 file changed, 18 insertions(+), 15 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c
index a941c71c7d06..039194cbe477 100644
--- a/arch/arm/mach-pxa/pm.c
+++ b/arch/arm/mach-pxa/pm.c
@@ -38,34 +38,37 @@ int pxa_pm_enter(suspend_state_t state)
 		iwmmxt_task_disable(NULL);
 #endif
 
-	pxa_cpu_pm_fns->save(sleep_save);
+	/* skip registers saving for standby */
+	if (state != PM_SUSPEND_STANDBY) {
+		pxa_cpu_pm_fns->save(sleep_save);
+		/* before sleeping, calculate and save a checksum */
+		for (i = 0; i < pxa_cpu_pm_fns->save_size - 1; i++)
+			sleep_save_checksum += sleep_save[i];
+	}
 
 	/* Clear sleep reset status */
 	RCSR = RCSR_SMR;
 
-	/* before sleeping, calculate and save a checksum */
-	for (i = 0; i < pxa_cpu_pm_fns->save_size - 1; i++)
-		sleep_save_checksum += sleep_save[i];
-
 	/* *** go zzz *** */
 	pxa_cpu_pm_fns->enter(state);
 	cpu_init();
 
-	/* after sleeping, validate the checksum */
-	for (i = 0; i < pxa_cpu_pm_fns->save_size - 1; i++)
-		checksum += sleep_save[i];
+	if (state != PM_SUSPEND_STANDBY) {
+		/* after sleeping, validate the checksum */
+		for (i = 0; i < pxa_cpu_pm_fns->save_size - 1; i++)
+			checksum += sleep_save[i];
 
-	/* if invalid, display message and wait for a hardware reset */
-	if (checksum != sleep_save_checksum) {
+		/* if invalid, display message and wait for a hardware reset */
+		if (checksum != sleep_save_checksum) {
 #ifdef CONFIG_ARCH_LUBBOCK
-		LUB_HEXLED = 0xbadbadc5;
+			LUB_HEXLED = 0xbadbadc5;
 #endif
-		while (1)
-			pxa_cpu_pm_fns->enter(state);
+			while (1)
+				pxa_cpu_pm_fns->enter(state);
+		}
+		pxa_cpu_pm_fns->restore(sleep_save);
 	}
 
-	pxa_cpu_pm_fns->restore(sleep_save);
-
 	pr_debug("*** made it back from resume\n");
 
 	return 0;
-- 
cgit v1.2.3-59-g8ed1b


From 35aa1df4328340f38edc46f00837f08d33d49f63 Mon Sep 17 00:00:00 2001
From: Quentin Barnes <qbarnes@gmail.com>
Date: Mon, 11 Jun 2007 22:20:10 +0000
Subject: ARM kprobes: instruction single-stepping support

This is the code implementing instruction single-stepping for kprobes
on ARM.

To get around the limitation of no Next-PC and no hardware single-
stepping, all kprobe'd instructions are split into three camps:
simulation, emulation, and rejected. "Simulated" instructions are
those instructions which behavior is reproduced by straight C code.
"Emulated" instructions are ones that are copied, slightly altered
and executed directly in the instruction slot to reproduce their
behavior.  "Rejected" instructions are ones that could be simulated,
but work hasn't been put into simulating them. These instructions
should be very rare, if not unencountered, in the kernel. If ever
needed, code could be added to simulate them.

One might wonder why this and the ptrace singlestep facility are not
sharing some code.  Both approaches are fundamentally different because
the ptrace code regains control after the stepped instruction by installing
a breakpoint after the instruction itself, and possibly at the location
where the instruction might be branching to, instead of simulating or
emulating the target instruction.

The ptrace approach isn't suitable for kprobes because the breakpoints
would have to be moved back, and the icache flushed, everytime the
probe is hit to let normal code execution resume, which would have a
significant performance impact. It is also racy on SMP since another
CPU could, with the right timing, sail through the probe point without
being caught.  Because ptrace single-stepping always result in a
different process to be scheduled, the concern for performance is much
less significant.

On the other hand, the kprobes approach isn't (currently) suitable for
ptrace because it has no provision for proper user space memory
protection and translation, and even if that was implemented, the gain
wouldn't be worth the added complexity in the ptrace path compared to
the current approach.

So, until kprobes does support user space, both kprobes and ptrace are
best kept independent and separate.

Signed-off-by: Quentin Barnes <qbarnes@gmail.com>
Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
---
 arch/arm/kernel/Makefile         |    1 +
 arch/arm/kernel/kprobes-decode.c | 1529 ++++++++++++++++++++++++++++++++++++++
 include/asm-arm/kprobes.h        |   43 ++
 3 files changed, 1573 insertions(+)
 create mode 100644 arch/arm/kernel/kprobes-decode.c
 create mode 100644 include/asm-arm/kprobes.h

(limited to 'arch')

diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 593b56509f4f..9e0eebacd3d9 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_ISA_DMA)		+= dma-isa.o
 obj-$(CONFIG_PCI)		+= bios32.o isa.o
 obj-$(CONFIG_SMP)		+= smp.o
 obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
+obj-$(CONFIG_KPROBES)		+= kprobes-decode.o
 obj-$(CONFIG_OABI_COMPAT)	+= sys_oabi-compat.o
 
 obj-$(CONFIG_CRUNCH)		+= crunch.o crunch-bits.o
diff --git a/arch/arm/kernel/kprobes-decode.c b/arch/arm/kernel/kprobes-decode.c
new file mode 100644
index 000000000000..d51bc8b60557
--- /dev/null
+++ b/arch/arm/kernel/kprobes-decode.c
@@ -0,0 +1,1529 @@
+/*
+ * arch/arm/kernel/kprobes-decode.c
+ *
+ * Copyright (C) 2006, 2007 Motorola Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+/*
+ * We do not have hardware single-stepping on ARM, This
+ * effort is further complicated by the ARM not having a
+ * "next PC" register.  Instructions that change the PC
+ * can't be safely single-stepped in a MP environment, so
+ * we have a lot of work to do:
+ *
+ * In the prepare phase:
+ *   *) If it is an instruction that does anything
+ *      with the CPU mode, we reject it for a kprobe.
+ *      (This is out of laziness rather than need.  The
+ *      instructions could be simulated.)
+ *
+ *   *) Otherwise, decode the instruction rewriting its
+ *      registers to take fixed, ordered registers and
+ *      setting a handler for it to run the instruction.
+ *
+ * In the execution phase by an instruction's handler:
+ *
+ *   *) If the PC is written to by the instruction, the
+ *      instruction must be fully simulated in software.
+ *      If it is a conditional instruction, the handler
+ *      will use insn[0] to copy its condition code to
+ *	set r0 to 1 and insn[1] to "mov pc, lr" to return.
+ *
+ *   *) Otherwise, a modified form of the instruction is
+ *      directly executed.  Its handler calls the
+ *      instruction in insn[0].  In insn[1] is a
+ *      "mov pc, lr" to return.
+ *
+ *      Before calling, load up the reordered registers
+ *      from the original instruction's registers.  If one
+ *      of the original input registers is the PC, compute
+ *      and adjust the appropriate input register.
+ *
+ *	After call completes, copy the output registers to
+ *      the original instruction's original registers.
+ *
+ * We don't use a real breakpoint instruction since that
+ * would have us in the kernel go from SVC mode to SVC
+ * mode losing the link register.  Instead we use an
+ * undefined instruction.  To simplify processing, the
+ * undefined instruction used for kprobes must be reserved
+ * exclusively for kprobes use.
+ *
+ * TODO: ifdef out some instruction decoding based on architecture.
+ */
+
+#include <linux/kernel.h>
+#include <linux/kprobes.h>
+
+#define sign_extend(x, signbit) ((x) | (0 - ((x) & (1 << (signbit)))))
+
+#define branch_displacement(insn) sign_extend(((insn) & 0xffffff) << 2, 25)
+
+#define PSR_fs	(PSR_f|PSR_s)
+
+#define KPROBE_RETURN_INSTRUCTION	0xe1a0f00e	/* mov pc, lr */
+#define SET_R0_TRUE_INSTRUCTION		0xe3a00001	/* mov	r0, #1 */
+
+#define	truecc_insn(insn)	(((insn) & 0xf0000000) | \
+				 (SET_R0_TRUE_INSTRUCTION & 0x0fffffff))
+
+typedef long (insn_0arg_fn_t)(void);
+typedef long (insn_1arg_fn_t)(long);
+typedef long (insn_2arg_fn_t)(long, long);
+typedef long (insn_3arg_fn_t)(long, long, long);
+typedef long (insn_4arg_fn_t)(long, long, long, long);
+typedef long long (insn_llret_0arg_fn_t)(void);
+typedef long long (insn_llret_3arg_fn_t)(long, long, long);
+typedef long long (insn_llret_4arg_fn_t)(long, long, long, long);
+
+union reg_pair {
+	long long	dr;
+#ifdef __LITTLE_ENDIAN
+	struct { long	r0, r1; };
+#else
+	struct { long	r1, r0; };
+#endif
+};
+
+/*
+ * For STR and STM instructions, an ARM core may choose to use either
+ * a +8 or a +12 displacement from the current instruction's address.
+ * Whichever value is chosen for a given core, it must be the same for
+ * both instructions and may not change.  This function measures it.
+ */
+
+static int str_pc_offset;
+
+static void __init find_str_pc_offset(void)
+{
+	int addr, scratch, ret;
+
+	__asm__ (
+		"sub	%[ret], pc, #4		\n\t"
+		"str	pc, %[addr]		\n\t"
+		"ldr	%[scr], %[addr]		\n\t"
+		"sub	%[ret], %[scr], %[ret]	\n\t"
+		: [ret] "=r" (ret), [scr] "=r" (scratch), [addr] "+m" (addr));
+
+	str_pc_offset = ret;
+}
+
+/*
+ * The insnslot_?arg_r[w]flags() functions below are to keep the
+ * msr -> *fn -> mrs instruction sequences indivisible so that
+ * the state of the CPSR flags aren't inadvertently modified
+ * just before or just after the call.
+ */
+
+static inline long __kprobes
+insnslot_0arg_rflags(long cpsr, insn_0arg_fn_t *fn)
+{
+	register long ret asm("r0");
+
+	__asm__ __volatile__ (
+		"msr	cpsr_fs, %[cpsr]	\n\t"
+		"mov	lr, pc			\n\t"
+		"mov	pc, %[fn]		\n\t"
+		: "=r" (ret)
+		: [cpsr] "r" (cpsr), [fn] "r" (fn)
+		: "lr", "cc"
+	);
+	return ret;
+}
+
+static inline long long __kprobes
+insnslot_llret_0arg_rflags(long cpsr, insn_llret_0arg_fn_t *fn)
+{
+	register long ret0 asm("r0");
+	register long ret1 asm("r1");
+	union reg_pair fnr;
+
+	__asm__ __volatile__ (
+		"msr	cpsr_fs, %[cpsr]	\n\t"
+		"mov	lr, pc			\n\t"
+		"mov	pc, %[fn]		\n\t"
+		: "=r" (ret0), "=r" (ret1)
+		: [cpsr] "r" (cpsr), [fn] "r" (fn)
+		: "lr", "cc"
+	);
+	fnr.r0 = ret0;
+	fnr.r1 = ret1;
+	return fnr.dr;
+}
+
+static inline long __kprobes
+insnslot_1arg_rflags(long r0, long cpsr, insn_1arg_fn_t *fn)
+{
+	register long rr0 asm("r0") = r0;
+	register long ret asm("r0");
+
+	__asm__ __volatile__ (
+		"msr	cpsr_fs, %[cpsr]	\n\t"
+		"mov	lr, pc			\n\t"
+		"mov	pc, %[fn]		\n\t"
+		: "=r" (ret)
+		: "0" (rr0), [cpsr] "r" (cpsr), [fn] "r" (fn)
+		: "lr", "cc"
+	);
+	return ret;
+}
+
+static inline long __kprobes
+insnslot_2arg_rflags(long r0, long r1, long cpsr, insn_2arg_fn_t *fn)
+{
+	register long rr0 asm("r0") = r0;
+	register long rr1 asm("r1") = r1;
+	register long ret asm("r0");
+
+	__asm__ __volatile__ (
+		"msr	cpsr_fs, %[cpsr]	\n\t"
+		"mov	lr, pc			\n\t"
+		"mov	pc, %[fn]		\n\t"
+		: "=r" (ret)
+		: "0" (rr0), "r" (rr1),
+		  [cpsr] "r" (cpsr), [fn] "r" (fn)
+		: "lr", "cc"
+	);
+	return ret;
+}
+
+static inline long __kprobes
+insnslot_3arg_rflags(long r0, long r1, long r2, long cpsr, insn_3arg_fn_t *fn)
+{
+	register long rr0 asm("r0") = r0;
+	register long rr1 asm("r1") = r1;
+	register long rr2 asm("r2") = r2;
+	register long ret asm("r0");
+
+	__asm__ __volatile__ (
+		"msr	cpsr_fs, %[cpsr]	\n\t"
+		"mov	lr, pc			\n\t"
+		"mov	pc, %[fn]		\n\t"
+		: "=r" (ret)
+		: "0" (rr0), "r" (rr1), "r" (rr2),
+		  [cpsr] "r" (cpsr), [fn] "r" (fn)
+		: "lr", "cc"
+	);
+	return ret;
+}
+
+static inline long long __kprobes
+insnslot_llret_3arg_rflags(long r0, long r1, long r2, long cpsr,
+			   insn_llret_3arg_fn_t *fn)
+{
+	register long rr0 asm("r0") = r0;
+	register long rr1 asm("r1") = r1;
+	register long rr2 asm("r2") = r2;
+	register long ret0 asm("r0");
+	register long ret1 asm("r1");
+	union reg_pair fnr;
+
+	__asm__ __volatile__ (
+		"msr	cpsr_fs, %[cpsr]	\n\t"
+		"mov	lr, pc			\n\t"
+		"mov	pc, %[fn]		\n\t"
+		: "=r" (ret0), "=r" (ret1)
+		: "0" (rr0), "r" (rr1), "r" (rr2),
+		  [cpsr] "r" (cpsr), [fn] "r" (fn)
+		: "lr", "cc"
+	);
+	fnr.r0 = ret0;
+	fnr.r1 = ret1;
+	return fnr.dr;
+}
+
+static inline long __kprobes
+insnslot_4arg_rflags(long r0, long r1, long r2, long r3, long cpsr,
+		     insn_4arg_fn_t *fn)
+{
+	register long rr0 asm("r0") = r0;
+	register long rr1 asm("r1") = r1;
+	register long rr2 asm("r2") = r2;
+	register long rr3 asm("r3") = r3;
+	register long ret asm("r0");
+
+	__asm__ __volatile__ (
+		"msr	cpsr_fs, %[cpsr]	\n\t"
+		"mov	lr, pc			\n\t"
+		"mov	pc, %[fn]		\n\t"
+		: "=r" (ret)
+		: "0" (rr0), "r" (rr1), "r" (rr2), "r" (rr3),
+		  [cpsr] "r" (cpsr), [fn] "r" (fn)
+		: "lr", "cc"
+	);
+	return ret;
+}
+
+static inline long __kprobes
+insnslot_1arg_rwflags(long r0, long *cpsr, insn_1arg_fn_t *fn)
+{
+	register long rr0 asm("r0") = r0;
+	register long ret asm("r0");
+	long oldcpsr = *cpsr;
+	long newcpsr;
+
+	__asm__ __volatile__ (
+		"msr	cpsr_fs, %[oldcpsr]	\n\t"
+		"mov	lr, pc			\n\t"
+		"mov	pc, %[fn]		\n\t"
+		"mrs	%[newcpsr], cpsr	\n\t"
+		: "=r" (ret), [newcpsr] "=r" (newcpsr)
+		: "0" (rr0), [oldcpsr] "r" (oldcpsr), [fn] "r" (fn)
+		: "lr", "cc"
+	);
+	*cpsr = (oldcpsr & ~PSR_fs) | (newcpsr & PSR_fs);
+	return ret;
+}
+
+static inline long __kprobes
+insnslot_2arg_rwflags(long r0, long r1, long *cpsr, insn_2arg_fn_t *fn)
+{
+	register long rr0 asm("r0") = r0;
+	register long rr1 asm("r1") = r1;
+	register long ret asm("r0");
+	long oldcpsr = *cpsr;
+	long newcpsr;
+
+	__asm__ __volatile__ (
+		"msr	cpsr_fs, %[oldcpsr]	\n\t"
+		"mov	lr, pc			\n\t"
+		"mov	pc, %[fn]		\n\t"
+		"mrs	%[newcpsr], cpsr	\n\t"
+		: "=r" (ret), [newcpsr] "=r" (newcpsr)
+		: "0" (rr0), "r" (rr1), [oldcpsr] "r" (oldcpsr), [fn] "r" (fn)
+		: "lr", "cc"
+	);
+	*cpsr = (oldcpsr & ~PSR_fs) | (newcpsr & PSR_fs);
+	return ret;
+}
+
+static inline long __kprobes
+insnslot_3arg_rwflags(long r0, long r1, long r2, long *cpsr,
+		      insn_3arg_fn_t *fn)
+{
+	register long rr0 asm("r0") = r0;
+	register long rr1 asm("r1") = r1;
+	register long rr2 asm("r2") = r2;
+	register long ret asm("r0");
+	long oldcpsr = *cpsr;
+	long newcpsr;
+
+	__asm__ __volatile__ (
+		"msr	cpsr_fs, %[oldcpsr]	\n\t"
+		"mov	lr, pc			\n\t"
+		"mov	pc, %[fn]		\n\t"
+		"mrs	%[newcpsr], cpsr	\n\t"
+		: "=r" (ret), [newcpsr] "=r" (newcpsr)
+		: "0" (rr0), "r" (rr1), "r" (rr2),
+		  [oldcpsr] "r" (oldcpsr), [fn] "r" (fn)
+		: "lr", "cc"
+	);
+	*cpsr = (oldcpsr & ~PSR_fs) | (newcpsr & PSR_fs);
+	return ret;
+}
+
+static inline long __kprobes
+insnslot_4arg_rwflags(long r0, long r1, long r2, long r3, long *cpsr,
+		      insn_4arg_fn_t *fn)
+{
+	register long rr0 asm("r0") = r0;
+	register long rr1 asm("r1") = r1;
+	register long rr2 asm("r2") = r2;
+	register long rr3 asm("r3") = r3;
+	register long ret asm("r0");
+	long oldcpsr = *cpsr;
+	long newcpsr;
+
+	__asm__ __volatile__ (
+		"msr	cpsr_fs, %[oldcpsr]	\n\t"
+		"mov	lr, pc			\n\t"
+		"mov	pc, %[fn]		\n\t"
+		"mrs	%[newcpsr], cpsr	\n\t"
+		: "=r" (ret), [newcpsr] "=r" (newcpsr)
+		: "0" (rr0), "r" (rr1), "r" (rr2), "r" (rr3),
+		  [oldcpsr] "r" (oldcpsr), [fn] "r" (fn)
+		: "lr", "cc"
+	);
+	*cpsr = (oldcpsr & ~PSR_fs) | (newcpsr & PSR_fs);
+	return ret;
+}
+
+static inline long long __kprobes
+insnslot_llret_4arg_rwflags(long r0, long r1, long r2, long r3, long *cpsr,
+			    insn_llret_4arg_fn_t *fn)
+{
+	register long rr0 asm("r0") = r0;
+	register long rr1 asm("r1") = r1;
+	register long rr2 asm("r2") = r2;
+	register long rr3 asm("r3") = r3;
+	register long ret0 asm("r0");
+	register long ret1 asm("r1");
+	long oldcpsr = *cpsr;
+	long newcpsr;
+	union reg_pair fnr;
+
+	__asm__ __volatile__ (
+		"msr	cpsr_fs, %[oldcpsr]	\n\t"
+		"mov	lr, pc			\n\t"
+		"mov	pc, %[fn]		\n\t"
+		"mrs	%[newcpsr], cpsr	\n\t"
+		: "=r" (ret0), "=r" (ret1), [newcpsr] "=r" (newcpsr)
+		: "0" (rr0), "r" (rr1), "r" (rr2), "r" (rr3),
+		  [oldcpsr] "r" (oldcpsr), [fn] "r" (fn)
+		: "lr", "cc"
+	);
+	*cpsr = (oldcpsr & ~PSR_fs) | (newcpsr & PSR_fs);
+	fnr.r0 = ret0;
+	fnr.r1 = ret1;
+	return fnr.dr;
+}
+
+/*
+ * To avoid the complications of mimicing single-stepping on a
+ * processor without a Next-PC or a single-step mode, and to
+ * avoid having to deal with the side-effects of boosting, we
+ * simulate or emulate (almost) all ARM instructions.
+ *
+ * "Simulation" is where the instruction's behavior is duplicated in
+ * C code.  "Emulation" is where the original instruction is rewritten
+ * and executed, often by altering its registers.
+ *
+ * By having all behavior of the kprobe'd instruction completed before
+ * returning from the kprobe_handler(), all locks (scheduler and
+ * interrupt) can safely be released.  There is no need for secondary
+ * breakpoints, no race with MP or preemptable kernels, nor having to
+ * clean up resources counts at a later time impacting overall system
+ * performance.  By rewriting the instruction, only the minimum registers
+ * need to be loaded and saved back optimizing performance.
+ *
+ * Calling the insnslot_*_rwflags version of a function doesn't hurt
+ * anything even when the CPSR flags aren't updated by the
+ * instruction.  It's just a little slower in return for saving
+ * a little space by not having a duplicate function that doesn't
+ * update the flags.  (The same optimization can be said for
+ * instructions that do or don't perform register writeback)
+ * Also, instructions can either read the flags, only write the
+ * flags, or read and write the flags.  To save combinations
+ * rather than for sheer performance, flag functions just assume
+ * read and write of flags.
+ */
+
+static void __kprobes simulate_bbl(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	long iaddr = (long)p->addr;
+	int disp  = branch_displacement(insn);
+
+	if (!insnslot_1arg_rflags(0, regs->ARM_cpsr, i_fn))
+		return;
+
+	if (insn & (1 << 24))
+		regs->ARM_lr = iaddr + 4;
+
+	regs->ARM_pc = iaddr + 8 + disp;
+}
+
+static void __kprobes simulate_blx1(struct kprobe *p, struct pt_regs *regs)
+{
+	kprobe_opcode_t insn = p->opcode;
+	long iaddr = (long)p->addr;
+	int disp = branch_displacement(insn);
+
+	regs->ARM_lr = iaddr + 4;
+	regs->ARM_pc = iaddr + 8 + disp + ((insn >> 23) & 0x2);
+	regs->ARM_cpsr |= PSR_T_BIT;
+}
+
+static void __kprobes simulate_blx2bx(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rm = insn & 0xf;
+	long rmv = regs->uregs[rm];
+
+	if (!insnslot_1arg_rflags(0, regs->ARM_cpsr, i_fn))
+		return;
+
+	if (insn & (1 << 5))
+		regs->ARM_lr = (long)p->addr + 4;
+
+	regs->ARM_pc = rmv & ~0x1;
+	regs->ARM_cpsr &= ~PSR_T_BIT;
+	if (rmv & 0x1)
+		regs->ARM_cpsr |= PSR_T_BIT;
+}
+
+static void __kprobes simulate_ldm1stm1(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rn = (insn >> 16) & 0xf;
+	int lbit = insn & (1 << 20);
+	int wbit = insn & (1 << 21);
+	int ubit = insn & (1 << 23);
+	int pbit = insn & (1 << 24);
+	long *addr = (long *)regs->uregs[rn];
+	int reg_bit_vector;
+	int reg_count;
+
+	if (!insnslot_1arg_rflags(0, regs->ARM_cpsr, i_fn))
+		return;
+
+	reg_count = 0;
+	reg_bit_vector = insn & 0xffff;
+	while (reg_bit_vector) {
+		reg_bit_vector &= (reg_bit_vector - 1);
+		++reg_count;
+	}
+
+	if (!ubit)
+		addr -= reg_count;
+	addr += (!pbit ^ !ubit);
+
+	reg_bit_vector = insn & 0xffff;
+	while (reg_bit_vector) {
+		int reg = __ffs(reg_bit_vector);
+		reg_bit_vector &= (reg_bit_vector - 1);
+		if (lbit)
+			regs->uregs[reg] = *addr++;
+		else
+			*addr++ = regs->uregs[reg];
+	}
+
+	if (wbit) {
+		if (!ubit)
+			addr -= reg_count;
+		addr -= (!pbit ^ !ubit);
+		regs->uregs[rn] = (long)addr;
+	}
+}
+
+static void __kprobes simulate_stm1_pc(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0];
+
+	if (!insnslot_1arg_rflags(0, regs->ARM_cpsr, i_fn))
+		return;
+
+	regs->ARM_pc = (long)p->addr + str_pc_offset;
+	simulate_ldm1stm1(p, regs);
+	regs->ARM_pc = (long)p->addr + 4;
+}
+
+static void __kprobes simulate_mov_ipsp(struct kprobe *p, struct pt_regs *regs)
+{
+	regs->uregs[12] = regs->uregs[13];
+}
+
+static void __kprobes emulate_ldcstc(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rn = (insn >> 16) & 0xf;
+	long rnv = regs->uregs[rn];
+
+	/* Save Rn in case of writeback. */
+	regs->uregs[rn] = insnslot_1arg_rflags(rnv, regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes emulate_ldrd(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_2arg_fn_t *i_fn = (insn_2arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rd = (insn >> 12) & 0xf;
+	int rn = (insn >> 16) & 0xf;
+	int rm = insn & 0xf;  /* rm may be invalid, don't care. */
+
+	/* Not following the C calling convention here, so need asm(). */
+	__asm__ __volatile__ (
+		"ldr	r0, %[rn]	\n\t"
+		"ldr	r1, %[rm]	\n\t"
+		"msr	cpsr_fs, %[cpsr]\n\t"
+		"mov	lr, pc		\n\t"
+		"mov	pc, %[i_fn]	\n\t"
+		"str	r0, %[rn]	\n\t"	/* in case of writeback */
+		"str	r2, %[rd0]	\n\t"
+		"str	r3, %[rd1]	\n\t"
+		: [rn]  "+m" (regs->uregs[rn]),
+		  [rd0] "=m" (regs->uregs[rd]),
+		  [rd1] "=m" (regs->uregs[rd+1])
+		: [rm]   "m" (regs->uregs[rm]),
+		  [cpsr] "r" (regs->ARM_cpsr),
+		  [i_fn] "r" (i_fn)
+		: "r0", "r1", "r2", "r3", "lr", "cc"
+	);
+}
+
+static void __kprobes emulate_strd(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_4arg_fn_t *i_fn = (insn_4arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rd = (insn >> 12) & 0xf;
+	int rn = (insn >> 16) & 0xf;
+	int rm  = insn & 0xf;
+	long rnv = regs->uregs[rn];
+	long rmv = regs->uregs[rm];  /* rm/rmv may be invalid, don't care. */
+
+	regs->uregs[rn] = insnslot_4arg_rflags(rnv, rmv, regs->uregs[rd],
+					       regs->uregs[rd+1],
+					       regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes emulate_ldr(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_llret_3arg_fn_t *i_fn = (insn_llret_3arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	union reg_pair fnr;
+	int rd = (insn >> 12) & 0xf;
+	int rn = (insn >> 16) & 0xf;
+	int rm = insn & 0xf;
+	long rdv;
+	long rnv  = regs->uregs[rn];
+	long rmv  = regs->uregs[rm]; /* rm/rmv may be invalid, don't care. */
+	long cpsr = regs->ARM_cpsr;
+
+	fnr.dr = insnslot_llret_3arg_rflags(rnv, 0, rmv, cpsr, i_fn);
+	regs->uregs[rn] = fnr.r0;  /* Save Rn in case of writeback. */
+	rdv = fnr.r1;
+
+	if (rd == 15) {
+#if __LINUX_ARM_ARCH__ >= 5
+		cpsr &= ~PSR_T_BIT;
+		if (rdv & 0x1)
+			cpsr |= PSR_T_BIT;
+		regs->ARM_cpsr = cpsr;
+		rdv &= ~0x1;
+#else
+		rdv &= ~0x2;
+#endif
+	}
+	regs->uregs[rd] = rdv;
+}
+
+static void __kprobes emulate_str(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_3arg_fn_t *i_fn = (insn_3arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	long iaddr = (long)p->addr;
+	int rd = (insn >> 12) & 0xf;
+	int rn = (insn >> 16) & 0xf;
+	int rm = insn & 0xf;
+	long rdv = (rd == 15) ? iaddr + str_pc_offset : regs->uregs[rd];
+	long rnv = (rn == 15) ? iaddr +  8 : regs->uregs[rn];
+	long rmv = regs->uregs[rm];  /* rm/rmv may be invalid, don't care. */
+
+	/* Save Rn in case of writeback. */
+	regs->uregs[rn] =
+		insnslot_3arg_rflags(rnv, rdv, rmv, regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes emulate_mrrc(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_llret_0arg_fn_t *i_fn = (insn_llret_0arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	union reg_pair fnr;
+	int rd = (insn >> 12) & 0xf;
+	int rn = (insn >> 16) & 0xf;
+
+	fnr.dr = insnslot_llret_0arg_rflags(regs->ARM_cpsr, i_fn);
+	regs->uregs[rn] = fnr.r0;
+	regs->uregs[rd] = fnr.r1;
+}
+
+static void __kprobes emulate_mcrr(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_2arg_fn_t *i_fn = (insn_2arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rd = (insn >> 12) & 0xf;
+	int rn = (insn >> 16) & 0xf;
+	long rnv = regs->uregs[rn];
+	long rdv = regs->uregs[rd];
+
+	insnslot_2arg_rflags(rnv, rdv, regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes emulate_sat(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rd = (insn >> 12) & 0xf;
+	int rm = insn & 0xf;
+	long rmv = regs->uregs[rm];
+
+	/* Writes Q flag */
+	regs->uregs[rd] = insnslot_1arg_rwflags(rmv, &regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes emulate_sel(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_2arg_fn_t *i_fn = (insn_2arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rd = (insn >> 12) & 0xf;
+	int rn = (insn >> 16) & 0xf;
+	int rm = insn & 0xf;
+	long rnv = regs->uregs[rn];
+	long rmv = regs->uregs[rm];
+
+	/* Reads GE bits */
+	regs->uregs[rd] = insnslot_2arg_rflags(rnv, rmv, regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes emulate_none(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_0arg_fn_t *i_fn = (insn_0arg_fn_t *)&p->ainsn.insn[0];
+
+	insnslot_0arg_rflags(regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes emulate_rd12(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_0arg_fn_t *i_fn = (insn_0arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rd = (insn >> 12) & 0xf;
+
+	regs->uregs[rd] = insnslot_0arg_rflags(regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes emulate_ird12(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int ird = (insn >> 12) & 0xf;
+
+	insnslot_1arg_rflags(regs->uregs[ird], regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes emulate_rn16(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rn = (insn >> 16) & 0xf;
+	long rnv = regs->uregs[rn];
+
+	insnslot_1arg_rflags(rnv, regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes emulate_rd12rm0(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rd = (insn >> 12) & 0xf;
+	int rm = insn & 0xf;
+	long rmv = regs->uregs[rm];
+
+	regs->uregs[rd] = insnslot_1arg_rflags(rmv, regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes
+emulate_rd12rn16rm0_rwflags(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_2arg_fn_t *i_fn = (insn_2arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rd = (insn >> 12) & 0xf;
+	int rn = (insn >> 16) & 0xf;
+	int rm = insn & 0xf;
+	long rnv = regs->uregs[rn];
+	long rmv = regs->uregs[rm];
+
+	regs->uregs[rd] =
+		insnslot_2arg_rwflags(rnv, rmv, &regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes
+emulate_rd16rn12rs8rm0_rwflags(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_3arg_fn_t *i_fn = (insn_3arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rd = (insn >> 16) & 0xf;
+	int rn = (insn >> 12) & 0xf;
+	int rs = (insn >> 8) & 0xf;
+	int rm = insn & 0xf;
+	long rnv = regs->uregs[rn];
+	long rsv = regs->uregs[rs];
+	long rmv = regs->uregs[rm];
+
+	regs->uregs[rd] =
+		insnslot_3arg_rwflags(rnv, rsv, rmv, &regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes
+emulate_rd16rs8rm0_rwflags(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_2arg_fn_t *i_fn = (insn_2arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rd = (insn >> 16) & 0xf;
+	int rs = (insn >> 8) & 0xf;
+	int rm = insn & 0xf;
+	long rsv = regs->uregs[rs];
+	long rmv = regs->uregs[rm];
+
+	regs->uregs[rd] =
+		insnslot_2arg_rwflags(rsv, rmv, &regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes
+emulate_rdhi16rdlo12rs8rm0_rwflags(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_llret_4arg_fn_t *i_fn = (insn_llret_4arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	union reg_pair fnr;
+	int rdhi = (insn >> 16) & 0xf;
+	int rdlo = (insn >> 12) & 0xf;
+	int rs   = (insn >> 8) & 0xf;
+	int rm   = insn & 0xf;
+	long rsv = regs->uregs[rs];
+	long rmv = regs->uregs[rm];
+
+	fnr.dr = insnslot_llret_4arg_rwflags(regs->uregs[rdhi],
+					     regs->uregs[rdlo], rsv, rmv,
+					     &regs->ARM_cpsr, i_fn);
+	regs->uregs[rdhi] = fnr.r0;
+	regs->uregs[rdlo] = fnr.r1;
+}
+
+static void __kprobes
+emulate_alu_imm_rflags(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rd = (insn >> 12) & 0xf;
+	int rn = (insn >> 16) & 0xf;
+	long rnv = (rn == 15) ? (long)p->addr + 8 : regs->uregs[rn];
+
+	regs->uregs[rd] = insnslot_1arg_rflags(rnv, regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes
+emulate_alu_imm_rwflags(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	int rd = (insn >> 12) & 0xf;
+	int rn = (insn >> 16) & 0xf;
+	long rnv = (rn == 15) ? (long)p->addr + 8 : regs->uregs[rn];
+
+	regs->uregs[rd] = insnslot_1arg_rwflags(rnv, &regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes
+emulate_alu_rflags(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_3arg_fn_t *i_fn = (insn_3arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	long ppc = (long)p->addr + 8;
+	int rd = (insn >> 12) & 0xf;
+	int rn = (insn >> 16) & 0xf;	/* rn/rnv/rs/rsv may be */
+	int rs = (insn >> 8) & 0xf;	/* invalid, don't care. */
+	int rm = insn & 0xf;
+	long rnv = (rn == 15) ? ppc : regs->uregs[rn];
+	long rmv = (rm == 15) ? ppc : regs->uregs[rm];
+	long rsv = regs->uregs[rs];
+
+	regs->uregs[rd] =
+		insnslot_3arg_rflags(rnv, rmv, rsv, regs->ARM_cpsr, i_fn);
+}
+
+static void __kprobes
+emulate_alu_rwflags(struct kprobe *p, struct pt_regs *regs)
+{
+	insn_3arg_fn_t *i_fn = (insn_3arg_fn_t *)&p->ainsn.insn[0];
+	kprobe_opcode_t insn = p->opcode;
+	long ppc = (long)p->addr + 8;
+	int rd = (insn >> 12) & 0xf;
+	int rn = (insn >> 16) & 0xf;	/* rn/rnv/rs/rsv may be */
+	int rs = (insn >> 8) & 0xf;	/* invalid, don't care. */
+	int rm = insn & 0xf;
+	long rnv = (rn == 15) ? ppc : regs->uregs[rn];
+	long rmv = (rm == 15) ? ppc : regs->uregs[rm];
+	long rsv = regs->uregs[rs];
+
+	regs->uregs[rd] =
+		insnslot_3arg_rwflags(rnv, rmv, rsv, &regs->ARM_cpsr, i_fn);
+}
+
+static enum kprobe_insn __kprobes
+prep_emulate_ldr_str(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	int ibit = (insn & (1 << 26)) ? 25 : 22;
+
+	insn &= 0xfff00fff;
+	insn |= 0x00001000;	/* Rn = r0, Rd = r1 */
+	if (insn & (1 << ibit)) {
+		insn &= ~0xf;
+		insn |= 2;	/* Rm = r2 */
+	}
+	asi->insn[0] = insn;
+	asi->insn_handler = (insn & (1 << 20)) ? emulate_ldr : emulate_str;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+prep_emulate_rd12rm0(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	insn &= 0xffff0ff0;	/* Rd = r0, Rm = r0 */
+	asi->insn[0] = insn;
+	asi->insn_handler = emulate_rd12rm0;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+prep_emulate_rd12(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	insn &= 0xffff0fff;	/* Rd = r0 */
+	asi->insn[0] = insn;
+	asi->insn_handler = emulate_rd12;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+prep_emulate_rd12rn16rm0_wflags(kprobe_opcode_t insn,
+				struct arch_specific_insn *asi)
+{
+	insn &= 0xfff00ff0;	/* Rd = r0, Rn = r0 */
+	insn |= 0x00000001;	/* Rm = r1 */
+	asi->insn[0] = insn;
+	asi->insn_handler = emulate_rd12rn16rm0_rwflags;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+prep_emulate_rd16rs8rm0_wflags(kprobe_opcode_t insn,
+			       struct arch_specific_insn *asi)
+{
+	insn &= 0xfff0f0f0;	/* Rd = r0, Rs = r0 */
+	insn |= 0x00000001;	/* Rm = r1          */
+	asi->insn[0] = insn;
+	asi->insn_handler = emulate_rd16rs8rm0_rwflags;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+prep_emulate_rd16rn12rs8rm0_wflags(kprobe_opcode_t insn,
+				   struct arch_specific_insn *asi)
+{
+	insn &= 0xfff000f0;	/* Rd = r0, Rn = r0 */
+	insn |= 0x00000102;	/* Rs = r1, Rm = r2 */
+	asi->insn[0] = insn;
+	asi->insn_handler = emulate_rd16rn12rs8rm0_rwflags;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+prep_emulate_rdhi16rdlo12rs8rm0_wflags(kprobe_opcode_t insn,
+				       struct arch_specific_insn *asi)
+{
+	insn &= 0xfff000f0;	/* RdHi = r0, RdLo = r1 */
+	insn |= 0x00001203;	/* Rs = r2, Rm = r3 */
+	asi->insn[0] = insn;
+	asi->insn_handler = emulate_rdhi16rdlo12rs8rm0_rwflags;
+	return INSN_GOOD;
+}
+
+/*
+ * For the instruction masking and comparisons in all the "space_*"
+ * functions below, Do _not_ rearrange the order of tests unless
+ * you're very, very sure of what you are doing.  For the sake of
+ * efficiency, the masks for some tests sometimes assume other test
+ * have been done prior to them so the number of patterns to test
+ * for an instruction set can be as broad as possible to reduce the
+ * number of tests needed.
+ */
+
+static enum kprobe_insn __kprobes
+space_1111(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	/* CPS mmod == 1 : 1111 0001 0000 xx10 xxxx xxxx xx0x xxxx */
+	/* RFE           : 1111 100x x0x1 xxxx xxxx 1010 xxxx xxxx */
+	/* SRS           : 1111 100x x1x0 1101 xxxx 0101 xxxx xxxx */
+	if ((insn & 0xfff30020) == 0xf1020000 ||
+	    (insn & 0xfe500f00) == 0xf8100a00 ||
+	    (insn & 0xfe5f0f00) == 0xf84d0500)
+		return INSN_REJECTED;
+
+	/* PLD : 1111 01x1 x101 xxxx xxxx xxxx xxxx xxxx : */
+	if ((insn & 0xfd700000) == 0xf4500000) {
+		insn &= 0xfff0ffff;	/* Rn = r0 */
+		asi->insn[0] = insn;
+		asi->insn_handler = emulate_rn16;
+		return INSN_GOOD;
+	}
+
+	/* BLX(1) : 1111 101x xxxx xxxx xxxx xxxx xxxx xxxx : */
+	if ((insn & 0xfe000000) == 0xfa000000) {
+		asi->insn_handler = simulate_blx1;
+		return INSN_GOOD_NO_SLOT;
+	}
+
+	/* SETEND : 1111 0001 0000 0001 xxxx xxxx 0000 xxxx */
+	/* CDP2   : 1111 1110 xxxx xxxx xxxx xxxx xxx0 xxxx */
+	if ((insn & 0xffff00f0) == 0xf1010000 ||
+	    (insn & 0xff000010) == 0xfe000000) {
+		asi->insn[0] = insn;
+		asi->insn_handler = emulate_none;
+		return INSN_GOOD;
+	}
+
+	/* MCRR2 : 1111 1100 0100 xxxx xxxx xxxx xxxx xxxx : (Rd != Rn) */
+	/* MRRC2 : 1111 1100 0101 xxxx xxxx xxxx xxxx xxxx : (Rd != Rn) */
+	if ((insn & 0xffe00000) == 0xfc400000) {
+		insn &= 0xfff00fff;	/* Rn = r0 */
+		insn |= 0x00001000;	/* Rd = r1 */
+		asi->insn[0] = insn;
+		asi->insn_handler =
+			(insn & (1 << 20)) ? emulate_mrrc : emulate_mcrr;
+		return INSN_GOOD;
+	}
+
+	/* LDC2 : 1111 110x xxx1 xxxx xxxx xxxx xxxx xxxx */
+	/* STC2 : 1111 110x xxx0 xxxx xxxx xxxx xxxx xxxx */
+	if ((insn & 0xfe000000) == 0xfc000000) {
+		insn &= 0xfff0ffff;      /* Rn = r0 */
+		asi->insn[0] = insn;
+		asi->insn_handler = emulate_ldcstc;
+		return INSN_GOOD;
+	}
+
+	/* MCR2 : 1111 1110 xxx0 xxxx xxxx xxxx xxx1 xxxx */
+	/* MRC2 : 1111 1110 xxx1 xxxx xxxx xxxx xxx1 xxxx */
+	insn &= 0xffff0fff;	/* Rd = r0 */
+	asi->insn[0]      = insn;
+	asi->insn_handler = (insn & (1 << 20)) ? emulate_rd12 : emulate_ird12;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+space_cccc_000x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	/* cccc 0001 0xx0 xxxx xxxx xxxx xxxx xxx0 xxxx */
+	if ((insn & 0x0f900010) == 0x01000000) {
+
+		/* BXJ  : cccc 0001 0010 xxxx xxxx xxxx 0010 xxxx */
+		/* MSR  : cccc 0001 0x10 xxxx xxxx xxxx 0000 xxxx */
+		if ((insn & 0x0ff000f0) == 0x01200020 ||
+		    (insn & 0x0fb000f0) == 0x01200000)
+			return INSN_REJECTED;
+
+		/* MRS : cccc 0001 0x00 xxxx xxxx xxxx 0000 xxxx */
+		if ((insn & 0x0fb00010) == 0x01000000)
+			return prep_emulate_rd12(insn, asi);
+
+		/* SMLALxy : cccc 0001 0100 xxxx xxxx xxxx 1xx0 xxxx */
+		if ((insn & 0x0ff00090) == 0x01400080)
+			return prep_emulate_rdhi16rdlo12rs8rm0_wflags(insn, asi);
+
+		/* SMULWy : cccc 0001 0010 xxxx xxxx xxxx 1x10 xxxx */
+		/* SMULxy : cccc 0001 0110 xxxx xxxx xxxx 1xx0 xxxx */
+		if ((insn & 0x0ff000b0) == 0x012000a0 ||
+		    (insn & 0x0ff00090) == 0x01600080)
+			return prep_emulate_rd16rs8rm0_wflags(insn, asi);
+
+		/* SMLAxy : cccc 0001 0000 xxxx xxxx xxxx 1xx0 xxxx : Q */
+		/* SMLAWy : cccc 0001 0010 xxxx xxxx xxxx 0x00 xxxx : Q */
+		return prep_emulate_rd16rn12rs8rm0_wflags(insn, asi);
+
+	}
+
+	/* cccc 0001 0xx0 xxxx xxxx xxxx xxxx 0xx1 xxxx */
+	else if ((insn & 0x0f900090) == 0x01000010) {
+
+		/* BKPT : 1110 0001 0010 xxxx xxxx xxxx 0111 xxxx */
+		if ((insn & 0xfff000f0) == 0xe1200070)
+			return INSN_REJECTED;
+
+		/* BLX(2) : cccc 0001 0010 xxxx xxxx xxxx 0011 xxxx */
+		/* BX     : cccc 0001 0010 xxxx xxxx xxxx 0001 xxxx */
+		if ((insn & 0x0ff000d0) == 0x01200010) {
+			asi->insn[0] = truecc_insn(insn);
+			asi->insn_handler = simulate_blx2bx;
+			return INSN_GOOD;
+		}
+
+		/* CLZ : cccc 0001 0110 xxxx xxxx xxxx 0001 xxxx */
+		if ((insn & 0x0ff000f0) == 0x01600010)
+			return prep_emulate_rd12rm0(insn, asi);
+
+		/* QADD    : cccc 0001 0000 xxxx xxxx xxxx 0101 xxxx :Q */
+		/* QSUB    : cccc 0001 0010 xxxx xxxx xxxx 0101 xxxx :Q */
+		/* QDADD   : cccc 0001 0100 xxxx xxxx xxxx 0101 xxxx :Q */
+		/* QDSUB   : cccc 0001 0110 xxxx xxxx xxxx 0101 xxxx :Q */
+		return prep_emulate_rd12rn16rm0_wflags(insn, asi);
+	}
+
+	/* cccc 0000 xxxx xxxx xxxx xxxx xxxx 1001 xxxx */
+	else if ((insn & 0x0f000090) == 0x00000090) {
+
+		/* MUL    : cccc 0000 0000 xxxx xxxx xxxx 1001 xxxx :   */
+		/* MULS   : cccc 0000 0001 xxxx xxxx xxxx 1001 xxxx :cc */
+		/* MLA    : cccc 0000 0010 xxxx xxxx xxxx 1001 xxxx :   */
+		/* MLAS   : cccc 0000 0011 xxxx xxxx xxxx 1001 xxxx :cc */
+		/* UMAAL  : cccc 0000 0100 xxxx xxxx xxxx 1001 xxxx :   */
+		/* UMULL  : cccc 0000 1000 xxxx xxxx xxxx 1001 xxxx :   */
+		/* UMULLS : cccc 0000 1001 xxxx xxxx xxxx 1001 xxxx :cc */
+		/* UMLAL  : cccc 0000 1010 xxxx xxxx xxxx 1001 xxxx :   */
+		/* UMLALS : cccc 0000 1011 xxxx xxxx xxxx 1001 xxxx :cc */
+		/* SMULL  : cccc 0000 1100 xxxx xxxx xxxx 1001 xxxx :   */
+		/* SMULLS : cccc 0000 1101 xxxx xxxx xxxx 1001 xxxx :cc */
+		/* SMLAL  : cccc 0000 1110 xxxx xxxx xxxx 1001 xxxx :   */
+		/* SMLALS : cccc 0000 1111 xxxx xxxx xxxx 1001 xxxx :cc */
+		if ((insn & 0x0fe000f0) == 0x00000090) {
+		       return prep_emulate_rd16rs8rm0_wflags(insn, asi);
+		} else if  ((insn & 0x0fe000f0) == 0x00200090) {
+		       return prep_emulate_rd16rn12rs8rm0_wflags(insn, asi);
+		} else {
+		       return prep_emulate_rdhi16rdlo12rs8rm0_wflags(insn, asi);
+		}
+	}
+
+	/* cccc 000x xxxx xxxx xxxx xxxx xxxx 1xx1 xxxx */
+	else if ((insn & 0x0e000090) == 0x00000090) {
+
+		/* SWP   : cccc 0001 0000 xxxx xxxx xxxx 1001 xxxx */
+		/* SWPB  : cccc 0001 0100 xxxx xxxx xxxx 1001 xxxx */
+		/* LDRD  : cccc 000x xxx0 xxxx xxxx xxxx 1101 xxxx */
+		/* STRD  : cccc 000x xxx0 xxxx xxxx xxxx 1111 xxxx */
+		/* STREX : cccc 0001 1000 xxxx xxxx xxxx 1001 xxxx */
+		/* LDREX : cccc 0001 1001 xxxx xxxx xxxx 1001 xxxx */
+		/* LDRH  : cccc 000x xxx1 xxxx xxxx xxxx 1011 xxxx */
+		/* STRH  : cccc 000x xxx0 xxxx xxxx xxxx 1011 xxxx */
+		/* LDRSB : cccc 000x xxx1 xxxx xxxx xxxx 1101 xxxx */
+		/* LDRSH : cccc 000x xxx1 xxxx xxxx xxxx 1111 xxxx */
+		if ((insn & 0x0fb000f0) == 0x01000090) {
+			/* SWP/SWPB */
+			return prep_emulate_rd12rn16rm0_wflags(insn, asi);
+		} else if ((insn & 0x0e1000d0) == 0x00000d0) {
+			/* STRD/LDRD */
+			insn &= 0xfff00fff;
+			insn |= 0x00002000;	/* Rn = r0, Rd = r2 */
+			if (insn & (1 << 22)) {
+				/* I bit */
+				insn &= ~0xf;
+				insn |= 1;	/* Rm = r1 */
+			}
+			asi->insn[0] = insn;
+			asi->insn_handler =
+				(insn & (1 << 5)) ? emulate_strd : emulate_ldrd;
+			return INSN_GOOD;
+		}
+
+		return prep_emulate_ldr_str(insn, asi);
+	}
+
+	/* cccc 000x xxxx xxxx xxxx xxxx xxxx xxxx xxxx */
+
+	/*
+	 * ALU op with S bit and Rd == 15 :
+	 * 	cccc 000x xxx1 xxxx 1111 xxxx xxxx xxxx
+	 */
+	if ((insn & 0x0e10f000) == 0x0010f000)
+		return INSN_REJECTED;
+
+	/*
+	 * "mov ip, sp" is the most common kprobe'd instruction by far.
+	 * Check and optimize for it explicitly.
+	 */
+	if (insn == 0xe1a0c00d) {
+		asi->insn_handler = simulate_mov_ipsp;
+		return INSN_GOOD_NO_SLOT;
+	}
+
+	/*
+	 * Data processing: Immediate-shift / Register-shift
+	 * ALU op : cccc 000x xxxx xxxx xxxx xxxx xxxx xxxx
+	 * CPY    : cccc 0001 1010 xxxx xxxx 0000 0000 xxxx
+	 * MOV    : cccc 0001 101x xxxx xxxx xxxx xxxx xxxx
+	 * *S (bit 20) updates condition codes
+	 * ADC/SBC/RSC reads the C flag
+	 */
+	insn &= 0xfff00ff0;	/* Rn = r0, Rd = r0 */
+	insn |= 0x00000001;	/* Rm = r1 */
+	if (insn & 0x010) {
+		insn &= 0xfffff0ff;     /* register shift */
+		insn |= 0x00000200;     /* Rs = r2 */
+	}
+	asi->insn[0] = insn;
+	asi->insn_handler = (insn & (1 << 20)) ?  /* S-bit */
+				emulate_alu_rwflags : emulate_alu_rflags;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+space_cccc_001x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	/*
+	 * MSR   : cccc 0011 0x10 xxxx xxxx xxxx xxxx xxxx
+	 * Undef : cccc 0011 0x00 xxxx xxxx xxxx xxxx xxxx
+	 * ALU op with S bit and Rd == 15 :
+	 *	   cccc 001x xxx1 xxxx 1111 xxxx xxxx xxxx
+	 */
+	if ((insn & 0x0f900000) == 0x03200000 ||	/* MSR & Undef */
+	    (insn & 0x0e10f000) == 0x0210f000)		/* ALU s-bit, R15  */
+		return INSN_REJECTED;
+
+	/*
+	 * Data processing: 32-bit Immediate
+	 * ALU op : cccc 001x xxxx xxxx xxxx xxxx xxxx xxxx
+	 * MOV    : cccc 0011 101x xxxx xxxx xxxx xxxx xxxx
+	 * *S (bit 20) updates condition codes
+	 * ADC/SBC/RSC reads the C flag
+	 */
+	insn &= 0xfff00ff0;	/* Rn = r0, Rd = r0 */
+	asi->insn[0] = insn;
+	asi->insn_handler = (insn & (1 << 20)) ?  /* S-bit */
+			emulate_alu_imm_rwflags : emulate_alu_imm_rflags;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+space_cccc_0110__1(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	/* SEL : cccc 0110 1000 xxxx xxxx xxxx 1011 xxxx GE: !!! */
+	if ((insn & 0x0ff000f0) == 0x068000b0) {
+		insn &= 0xfff00ff0;	/* Rd = r0, Rn = r0 */
+		insn |= 0x00000001;	/* Rm = r1 */
+		asi->insn[0] = insn;
+		asi->insn_handler = emulate_sel;
+		return INSN_GOOD;
+	}
+
+	/* SSAT   : cccc 0110 101x xxxx xxxx xxxx xx01 xxxx :Q */
+	/* USAT   : cccc 0110 111x xxxx xxxx xxxx xx01 xxxx :Q */
+	/* SSAT16 : cccc 0110 1010 xxxx xxxx xxxx 0011 xxxx :Q */
+	/* USAT16 : cccc 0110 1110 xxxx xxxx xxxx 0011 xxxx :Q */
+	if ((insn & 0x0fa00030) == 0x06a00010 ||
+	    (insn & 0x0fb000f0) == 0x06a00030) {
+		insn &= 0xffff0ff0;	/* Rd = r0, Rm = r0 */
+		asi->insn[0] = insn;
+		asi->insn_handler = emulate_sat;
+		return INSN_GOOD;
+	}
+
+	/* REV    : cccc 0110 1011 xxxx xxxx xxxx 0011 xxxx */
+	/* REV16  : cccc 0110 1011 xxxx xxxx xxxx 1011 xxxx */
+	/* REVSH  : cccc 0110 1111 xxxx xxxx xxxx 1011 xxxx */
+	if ((insn & 0x0ff00070) == 0x06b00030 ||
+	    (insn & 0x0ff000f0) == 0x06f000b0)
+		return prep_emulate_rd12rm0(insn, asi);
+
+	/* SADD16    : cccc 0110 0001 xxxx xxxx xxxx 0001 xxxx :GE */
+	/* SADDSUBX  : cccc 0110 0001 xxxx xxxx xxxx 0011 xxxx :GE */
+	/* SSUBADDX  : cccc 0110 0001 xxxx xxxx xxxx 0101 xxxx :GE */
+	/* SSUB16    : cccc 0110 0001 xxxx xxxx xxxx 0111 xxxx :GE */
+	/* SADD8     : cccc 0110 0001 xxxx xxxx xxxx 1001 xxxx :GE */
+	/* SSUB8     : cccc 0110 0001 xxxx xxxx xxxx 1111 xxxx :GE */
+	/* QADD16    : cccc 0110 0010 xxxx xxxx xxxx 0001 xxxx :   */
+	/* QADDSUBX  : cccc 0110 0010 xxxx xxxx xxxx 0011 xxxx :   */
+	/* QSUBADDX  : cccc 0110 0010 xxxx xxxx xxxx 0101 xxxx :   */
+	/* QSUB16    : cccc 0110 0010 xxxx xxxx xxxx 0111 xxxx :   */
+	/* QADD8     : cccc 0110 0010 xxxx xxxx xxxx 1001 xxxx :   */
+	/* QSUB8     : cccc 0110 0010 xxxx xxxx xxxx 1111 xxxx :   */
+	/* SHADD16   : cccc 0110 0011 xxxx xxxx xxxx 0001 xxxx :   */
+	/* SHADDSUBX : cccc 0110 0011 xxxx xxxx xxxx 0011 xxxx :   */
+	/* SHSUBADDX : cccc 0110 0011 xxxx xxxx xxxx 0101 xxxx :   */
+	/* SHSUB16   : cccc 0110 0011 xxxx xxxx xxxx 0111 xxxx :   */
+	/* SHADD8    : cccc 0110 0011 xxxx xxxx xxxx 1001 xxxx :   */
+	/* SHSUB8    : cccc 0110 0011 xxxx xxxx xxxx 1111 xxxx :   */
+	/* UADD16    : cccc 0110 0101 xxxx xxxx xxxx 0001 xxxx :GE */
+	/* UADDSUBX  : cccc 0110 0101 xxxx xxxx xxxx 0011 xxxx :GE */
+	/* USUBADDX  : cccc 0110 0101 xxxx xxxx xxxx 0101 xxxx :GE */
+	/* USUB16    : cccc 0110 0101 xxxx xxxx xxxx 0111 xxxx :GE */
+	/* UADD8     : cccc 0110 0101 xxxx xxxx xxxx 1001 xxxx :GE */
+	/* USUB8     : cccc 0110 0101 xxxx xxxx xxxx 1111 xxxx :GE */
+	/* UQADD16   : cccc 0110 0110 xxxx xxxx xxxx 0001 xxxx :   */
+	/* UQADDSUBX : cccc 0110 0110 xxxx xxxx xxxx 0011 xxxx :   */
+	/* UQSUBADDX : cccc 0110 0110 xxxx xxxx xxxx 0101 xxxx :   */
+	/* UQSUB16   : cccc 0110 0110 xxxx xxxx xxxx 0111 xxxx :   */
+	/* UQADD8    : cccc 0110 0110 xxxx xxxx xxxx 1001 xxxx :   */
+	/* UQSUB8    : cccc 0110 0110 xxxx xxxx xxxx 1111 xxxx :   */
+	/* UHADD16   : cccc 0110 0111 xxxx xxxx xxxx 0001 xxxx :   */
+	/* UHADDSUBX : cccc 0110 0111 xxxx xxxx xxxx 0011 xxxx :   */
+	/* UHSUBADDX : cccc 0110 0111 xxxx xxxx xxxx 0101 xxxx :   */
+	/* UHSUB16   : cccc 0110 0111 xxxx xxxx xxxx 0111 xxxx :   */
+	/* UHADD8    : cccc 0110 0111 xxxx xxxx xxxx 1001 xxxx :   */
+	/* UHSUB8    : cccc 0110 0111 xxxx xxxx xxxx 1111 xxxx :   */
+	/* PKHBT     : cccc 0110 1000 xxxx xxxx xxxx x001 xxxx :   */
+	/* PKHTB     : cccc 0110 1000 xxxx xxxx xxxx x101 xxxx :   */
+	/* SXTAB16   : cccc 0110 1000 xxxx xxxx xxxx 0111 xxxx :   */
+	/* SXTB      : cccc 0110 1010 xxxx xxxx xxxx 0111 xxxx :   */
+	/* SXTAB     : cccc 0110 1010 xxxx xxxx xxxx 0111 xxxx :   */
+	/* SXTAH     : cccc 0110 1011 xxxx xxxx xxxx 0111 xxxx :   */
+	/* UXTAB16   : cccc 0110 1100 xxxx xxxx xxxx 0111 xxxx :   */
+	/* UXTAB     : cccc 0110 1110 xxxx xxxx xxxx 0111 xxxx :   */
+	/* UXTAH     : cccc 0110 1111 xxxx xxxx xxxx 0111 xxxx :   */
+	return prep_emulate_rd12rn16rm0_wflags(insn, asi);
+}
+
+static enum kprobe_insn __kprobes
+space_cccc_0111__1(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	/* Undef : cccc 0111 1111 xxxx xxxx xxxx 1111 xxxx */
+	if ((insn & 0x0ff000f0) == 0x03f000f0)
+		return INSN_REJECTED;
+
+	/* USADA8 : cccc 0111 1000 xxxx xxxx xxxx 0001 xxxx */
+	/* USAD8  : cccc 0111 1000 xxxx 1111 xxxx 0001 xxxx */
+	if ((insn & 0x0ff000f0) == 0x07800010)
+		 return prep_emulate_rd16rn12rs8rm0_wflags(insn, asi);
+
+	/* SMLALD : cccc 0111 0100 xxxx xxxx xxxx 00x1 xxxx */
+	/* SMLSLD : cccc 0111 0100 xxxx xxxx xxxx 01x1 xxxx */
+	if ((insn & 0x0ff00090) == 0x07400010)
+		return prep_emulate_rdhi16rdlo12rs8rm0_wflags(insn, asi);
+
+	/* SMLAD  : cccc 0111 0000 xxxx xxxx xxxx 00x1 xxxx :Q */
+	/* SMLSD  : cccc 0111 0000 xxxx xxxx xxxx 01x1 xxxx :Q */
+	/* SMMLA  : cccc 0111 0101 xxxx xxxx xxxx 00x1 xxxx :  */
+	/* SMMLS  : cccc 0111 0101 xxxx xxxx xxxx 11x1 xxxx :  */
+	if ((insn & 0x0ff00090) == 0x07000010 ||
+	    (insn & 0x0ff000d0) == 0x07500010 ||
+	    (insn & 0x0ff000d0) == 0x075000d0)
+		return prep_emulate_rd16rn12rs8rm0_wflags(insn, asi);
+
+	/* SMUSD  : cccc 0111 0000 xxxx xxxx xxxx 01x1 xxxx :  */
+	/* SMUAD  : cccc 0111 0000 xxxx 1111 xxxx 00x1 xxxx :Q */
+	/* SMMUL  : cccc 0111 0101 xxxx 1111 xxxx 00x1 xxxx :  */
+	return prep_emulate_rd16rs8rm0_wflags(insn, asi);
+}
+
+static enum kprobe_insn __kprobes
+space_cccc_01xx(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	/* LDR   : cccc 01xx x0x1 xxxx xxxx xxxx xxxx xxxx */
+	/* LDRB  : cccc 01xx x1x1 xxxx xxxx xxxx xxxx xxxx */
+	/* LDRBT : cccc 01x0 x111 xxxx xxxx xxxx xxxx xxxx */
+	/* LDRT  : cccc 01x0 x011 xxxx xxxx xxxx xxxx xxxx */
+	/* STR   : cccc 01xx x0x0 xxxx xxxx xxxx xxxx xxxx */
+	/* STRB  : cccc 01xx x1x0 xxxx xxxx xxxx xxxx xxxx */
+	/* STRBT : cccc 01x0 x110 xxxx xxxx xxxx xxxx xxxx */
+	/* STRT  : cccc 01x0 x010 xxxx xxxx xxxx xxxx xxxx */
+	return prep_emulate_ldr_str(insn, asi);
+}
+
+static enum kprobe_insn __kprobes
+space_cccc_100x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	/* LDM(2) : cccc 100x x101 xxxx 0xxx xxxx xxxx xxxx */
+	/* LDM(3) : cccc 100x x1x1 xxxx 1xxx xxxx xxxx xxxx */
+	if ((insn & 0x0e708000) == 0x85000000 ||
+	    (insn & 0x0e508000) == 0x85010000)
+		return INSN_REJECTED;
+
+	/* LDM(1) : cccc 100x x0x1 xxxx xxxx xxxx xxxx xxxx */
+	/* STM(1) : cccc 100x x0x0 xxxx xxxx xxxx xxxx xxxx */
+	asi->insn[0] = truecc_insn(insn);
+	asi->insn_handler = ((insn & 0x108000) == 0x008000) ? /* STM & R15 */
+				simulate_stm1_pc : simulate_ldm1stm1;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+space_cccc_101x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	/* B  : cccc 1010 xxxx xxxx xxxx xxxx xxxx xxxx */
+	/* BL : cccc 1011 xxxx xxxx xxxx xxxx xxxx xxxx */
+	asi->insn[0] = truecc_insn(insn);
+	asi->insn_handler = simulate_bbl;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+space_cccc_1100_010x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	/* MCRR : cccc 1100 0100 xxxx xxxx xxxx xxxx xxxx : (Rd!=Rn) */
+	/* MRRC : cccc 1100 0101 xxxx xxxx xxxx xxxx xxxx : (Rd!=Rn) */
+	insn &= 0xfff00fff;
+	insn |= 0x00001000;	/* Rn = r0, Rd = r1 */
+	asi->insn[0] = insn;
+	asi->insn_handler = (insn & (1 << 20)) ? emulate_mrrc : emulate_mcrr;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+space_cccc_110x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	/* LDC : cccc 110x xxx1 xxxx xxxx xxxx xxxx xxxx */
+	/* STC : cccc 110x xxx0 xxxx xxxx xxxx xxxx xxxx */
+	insn &= 0xfff0ffff;	/* Rn = r0 */
+	asi->insn[0] = insn;
+	asi->insn_handler = emulate_ldcstc;
+	return INSN_GOOD;
+}
+
+static enum kprobe_insn __kprobes
+space_cccc_111x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	/* BKPT : 1110 0001 0010 xxxx xxxx xxxx 0111 xxxx */
+	/* SWI  : cccc 1111 xxxx xxxx xxxx xxxx xxxx xxxx */
+	if ((insn & 0xfff000f0) == 0xe1200070 ||
+	    (insn & 0x0f000000) == 0x0f000000)
+		return INSN_REJECTED;
+
+	/* CDP : cccc 1110 xxxx xxxx xxxx xxxx xxx0 xxxx */
+	if ((insn & 0x0f000010) == 0x0e000000) {
+		asi->insn[0] = insn;
+		asi->insn_handler = emulate_none;
+		return INSN_GOOD;
+	}
+
+	/* MCR : cccc 1110 xxx0 xxxx xxxx xxxx xxx1 xxxx */
+	/* MRC : cccc 1110 xxx1 xxxx xxxx xxxx xxx1 xxxx */
+	insn &= 0xffff0fff;	/* Rd = r0 */
+	asi->insn[0] = insn;
+	asi->insn_handler = (insn & (1 << 20)) ? emulate_rd12 : emulate_ird12;
+	return INSN_GOOD;
+}
+
+/* Return:
+ *   INSN_REJECTED     If instruction is one not allowed to kprobe,
+ *   INSN_GOOD         If instruction is supported and uses instruction slot,
+ *   INSN_GOOD_NO_SLOT If instruction is supported but doesn't use its slot.
+ *
+ * For instructions we don't want to kprobe (INSN_REJECTED return result):
+ *   These are generally ones that modify the processor state making
+ *   them "hard" to simulate such as switches processor modes or
+ *   make accesses in alternate modes.  Any of these could be simulated
+ *   if the work was put into it, but low return considering they
+ *   should also be very rare.
+ */
+enum kprobe_insn __kprobes
+arm_kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi)
+{
+	asi->insn[1] = KPROBE_RETURN_INSTRUCTION;
+
+	if ((insn & 0xf0000000) == 0xf0000000) {
+
+		return space_1111(insn, asi);
+
+	} else if ((insn & 0x0e000000) == 0x00000000) {
+
+		return space_cccc_000x(insn, asi);
+
+	} else if ((insn & 0x0e000000) == 0x02000000) {
+
+		return space_cccc_001x(insn, asi);
+
+	} else if ((insn & 0x0f000010) == 0x06000010) {
+
+		return space_cccc_0110__1(insn, asi);
+
+	} else if ((insn & 0x0f000010) == 0x07000010) {
+
+		return space_cccc_0111__1(insn, asi);
+
+	} else if ((insn & 0x0c000000) == 0x04000000) {
+
+		return space_cccc_01xx(insn, asi);
+
+	} else if ((insn & 0x0e000000) == 0x08000000) {
+
+		return space_cccc_100x(insn, asi);
+
+	} else if ((insn & 0x0e000000) == 0x0a000000) {
+
+		return space_cccc_101x(insn, asi);
+
+	} else if ((insn & 0x0fe00000) == 0x0c400000) {
+
+		return space_cccc_1100_010x(insn, asi);
+
+	} else if ((insn & 0x0e000000) == 0x0c400000) {
+
+		return space_cccc_110x(insn, asi);
+
+	}
+
+	return space_cccc_111x(insn, asi);
+}
+
+void __init arm_kprobe_decode_init(void)
+{
+	find_str_pc_offset();
+}
+
+
+/*
+ * All ARM instructions listed below.
+ *
+ * Instructions and their general purpose registers are given.
+ * If a particular register may not use R15, it is prefixed with a "!".
+ * If marked with a "*" means the value returned by reading R15
+ * is implementation defined.
+ *
+ * ADC/ADD/AND/BIC/CMN/CMP/EOR/MOV/MVN/ORR/RSB/RSC/SBC/SUB/TEQ
+ *     TST: Rd, Rn, Rm, !Rs
+ * BX: Rm
+ * BLX(2): !Rm
+ * BX: Rm (R15 legal, but discouraged)
+ * BXJ: !Rm,
+ * CLZ: !Rd, !Rm
+ * CPY: Rd, Rm
+ * LDC/2,STC/2 immediate offset & unindex: Rn
+ * LDC/2,STC/2 immediate pre/post-indexed: !Rn
+ * LDM(1/3): !Rn, register_list
+ * LDM(2): !Rn, !register_list
+ * LDR,STR,PLD immediate offset: Rd, Rn
+ * LDR,STR,PLD register offset: Rd, Rn, !Rm
+ * LDR,STR,PLD scaled register offset: Rd, !Rn, !Rm
+ * LDR,STR immediate pre/post-indexed: Rd, !Rn
+ * LDR,STR register pre/post-indexed: Rd, !Rn, !Rm
+ * LDR,STR scaled register pre/post-indexed: Rd, !Rn, !Rm
+ * LDRB,STRB immediate offset: !Rd, Rn
+ * LDRB,STRB register offset: !Rd, Rn, !Rm
+ * LDRB,STRB scaled register offset: !Rd, !Rn, !Rm
+ * LDRB,STRB immediate pre/post-indexed: !Rd, !Rn
+ * LDRB,STRB register pre/post-indexed: !Rd, !Rn, !Rm
+ * LDRB,STRB scaled register pre/post-indexed: !Rd, !Rn, !Rm
+ * LDRT,LDRBT,STRBT immediate pre/post-indexed: !Rd, !Rn
+ * LDRT,LDRBT,STRBT register pre/post-indexed: !Rd, !Rn, !Rm
+ * LDRT,LDRBT,STRBT scaled register pre/post-indexed: !Rd, !Rn, !Rm
+ * LDRH/SH/SB/D,STRH/SH/SB/D immediate offset: !Rd, Rn
+ * LDRH/SH/SB/D,STRH/SH/SB/D register offset: !Rd, Rn, !Rm
+ * LDRH/SH/SB/D,STRH/SH/SB/D immediate pre/post-indexed: !Rd, !Rn
+ * LDRH/SH/SB/D,STRH/SH/SB/D register pre/post-indexed: !Rd, !Rn, !Rm
+ * LDREX: !Rd, !Rn
+ * MCR/2: !Rd
+ * MCRR/2,MRRC/2: !Rd, !Rn
+ * MLA: !Rd, !Rn, !Rm, !Rs
+ * MOV: Rd
+ * MRC/2: !Rd (if Rd==15, only changes cond codes, not the register)
+ * MRS,MSR: !Rd
+ * MUL: !Rd, !Rm, !Rs
+ * PKH{BT,TB}: !Rd, !Rn, !Rm
+ * QDADD,[U]QADD/16/8/SUBX: !Rd, !Rm, !Rn
+ * QDSUB,[U]QSUB/16/8/ADDX: !Rd, !Rm, !Rn
+ * REV/16/SH: !Rd, !Rm
+ * RFE: !Rn
+ * {S,U}[H]ADD{16,8,SUBX},{S,U}[H]SUB{16,8,ADDX}: !Rd, !Rn, !Rm
+ * SEL: !Rd, !Rn, !Rm
+ * SMLA<x><y>,SMLA{D,W<y>},SMLSD,SMML{A,S}: !Rd, !Rn, !Rm, !Rs
+ * SMLAL<x><y>,SMLA{D,LD},SMLSLD,SMMULL,SMULW<y>: !RdHi, !RdLo, !Rm, !Rs
+ * SMMUL,SMUAD,SMUL<x><y>,SMUSD: !Rd, !Rm, !Rs
+ * SSAT/16: !Rd, !Rm
+ * STM(1/2): !Rn, register_list* (R15 in reg list not recommended)
+ * STRT immediate pre/post-indexed: Rd*, !Rn
+ * STRT register pre/post-indexed: Rd*, !Rn, !Rm
+ * STRT scaled register pre/post-indexed: Rd*, !Rn, !Rm
+ * STREX: !Rd, !Rn, !Rm
+ * SWP/B: !Rd, !Rn, !Rm
+ * {S,U}XTA{B,B16,H}: !Rd, !Rn, !Rm
+ * {S,U}XT{B,B16,H}: !Rd, !Rm
+ * UM{AA,LA,UL}L: !RdHi, !RdLo, !Rm, !Rs
+ * USA{D8,A8,T,T16}: !Rd, !Rm, !Rs
+ *
+ * May transfer control by writing R15 (possible mode changes or alternate
+ * mode accesses marked by "*"):
+ * ALU op (* with s-bit), B, BL, BKPT, BLX(1/2), BX, BXJ, CPS*, CPY,
+ * LDM(1), LDM(2/3)*, LDR, MOV, RFE*, SWI*
+ *
+ * Instructions that do not take general registers, nor transfer control:
+ * CDP/2, SETEND, SRS*
+ */
diff --git a/include/asm-arm/kprobes.h b/include/asm-arm/kprobes.h
new file mode 100644
index 000000000000..951322328793
--- /dev/null
+++ b/include/asm-arm/kprobes.h
@@ -0,0 +1,43 @@
+/*
+ * include/asm-arm/kprobes.h
+ *
+ * Copyright (C) 2006, 2007 Motorola Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef _ARM_KPROBES_H
+#define _ARM_KPROBES_H
+
+#include <linux/types.h>
+#include <linux/ptrace.h>
+
+typedef u32 kprobe_opcode_t;
+
+struct kprobe;
+typedef void (kprobe_insn_handler_t)(struct kprobe *, struct pt_regs *);
+
+/* Architecture specific copy of original instruction. */
+struct arch_specific_insn {
+	kprobe_opcode_t		*insn;
+	kprobe_insn_handler_t	*insn_handler;
+};
+
+enum kprobe_insn {
+	INSN_REJECTED,
+	INSN_GOOD,
+	INSN_GOOD_NO_SLOT
+};
+
+enum kprobe_insn arm_kprobe_decode_insn(kprobe_opcode_t,
+					struct arch_specific_insn *);
+void __init arm_kprobe_decode_init(void);
+
+#endif /* _ARM_KPROBES_H */
-- 
cgit v1.2.3-59-g8ed1b


From 24ba613c9d6cad315f484e658288db152f1dc447 Mon Sep 17 00:00:00 2001
From: Abhishek Sagar <sagar.abhishek@gmail.com>
Date: Mon, 11 Jun 2007 22:20:10 +0000
Subject: ARM kprobes: core code

This is a full implementation of Kprobes including Jprobes and
Kretprobes support.

This ARM implementation does not follow the usual kprobes double-
exception model. The traditional model is where the initial kprobes
breakpoint calls kprobe_handler(), which returns from exception to
execute the instruction in its original context, then immediately
re-enters after a second breakpoint (or single-stepping exception)
into post_kprobe_handler(), each time the probe is hit..  The ARM
implementation only executes one kprobes exception per hit, so no
post_kprobe_handler() phase. All side-effects from the kprobe'd
instruction are resolved before returning from the initial exception.
As a result, all instructions are _always_ effectively boosted
regardless of the type of instruction, and even regardless of whether
or not there is a post-handler for the probe.

Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Signed-off-by: Quentin Barnes <qbarnes@gmail.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
---
 arch/arm/kernel/Makefile  |   2 +-
 arch/arm/kernel/kprobes.c | 453 ++++++++++++++++++++++++++++++++++++++++++++++
 include/asm-arm/kprobes.h |  29 +++
 3 files changed, 483 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/kernel/kprobes.c

(limited to 'arch')

diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 9e0eebacd3d9..faa761921153 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -19,7 +19,7 @@ obj-$(CONFIG_ISA_DMA)		+= dma-isa.o
 obj-$(CONFIG_PCI)		+= bios32.o isa.o
 obj-$(CONFIG_SMP)		+= smp.o
 obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
-obj-$(CONFIG_KPROBES)		+= kprobes-decode.o
+obj-$(CONFIG_KPROBES)		+= kprobes.o kprobes-decode.o
 obj-$(CONFIG_OABI_COMPAT)	+= sys_oabi-compat.o
 
 obj-$(CONFIG_CRUNCH)		+= crunch.o crunch-bits.o
diff --git a/arch/arm/kernel/kprobes.c b/arch/arm/kernel/kprobes.c
new file mode 100644
index 000000000000..a18a8458e99d
--- /dev/null
+++ b/arch/arm/kernel/kprobes.c
@@ -0,0 +1,453 @@
+/*
+ * arch/arm/kernel/kprobes.c
+ *
+ * Kprobes on ARM
+ *
+ * Abhishek Sagar <sagar.abhishek@gmail.com>
+ * Copyright (C) 2006, 2007 Motorola Inc.
+ *
+ * Nicolas Pitre <nico@marvell.com>
+ * Copyright (C) 2007 Marvell Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/kprobes.h>
+#include <linux/module.h>
+#include <linux/stringify.h>
+#include <asm/traps.h>
+#include <asm/cacheflush.h>
+
+/*
+ * This undefined instruction must be unique and
+ * reserved solely for kprobes' use.
+ */
+#define KPROBE_BREAKPOINT_INSTRUCTION	0xe7f001f8
+
+#define MIN_STACK_SIZE(addr) 				\
+	min((unsigned long)MAX_STACK_SIZE,		\
+	    (unsigned long)current_thread_info() + THREAD_START_SP - (addr))
+
+#define flush_insns(addr, cnt) 				\
+	flush_icache_range((unsigned long)(addr),	\
+			   (unsigned long)(addr) +	\
+			   sizeof(kprobe_opcode_t) * (cnt))
+
+/* Used as a marker in ARM_pc to note when we're in a jprobe. */
+#define JPROBE_MAGIC_ADDR		0xffffffff
+
+DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
+DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
+
+
+int __kprobes arch_prepare_kprobe(struct kprobe *p)
+{
+	kprobe_opcode_t insn;
+	kprobe_opcode_t tmp_insn[MAX_INSN_SIZE];
+	unsigned long addr = (unsigned long)p->addr;
+	int is;
+
+	if (addr & 0x3)
+		return -EINVAL;
+
+	insn = *p->addr;
+	p->opcode = insn;
+	p->ainsn.insn = tmp_insn;
+
+	switch (arm_kprobe_decode_insn(insn, &p->ainsn)) {
+	case INSN_REJECTED:	/* not supported */
+		return -EINVAL;
+
+	case INSN_GOOD:		/* instruction uses slot */
+		p->ainsn.insn = get_insn_slot();
+		if (!p->ainsn.insn)
+			return -ENOMEM;
+		for (is = 0; is < MAX_INSN_SIZE; ++is)
+			p->ainsn.insn[is] = tmp_insn[is];
+		flush_insns(&p->ainsn.insn, MAX_INSN_SIZE);
+		break;
+
+	case INSN_GOOD_NO_SLOT:	/* instruction doesn't need insn slot */
+		p->ainsn.insn = NULL;
+		break;
+	}
+
+	return 0;
+}
+
+void __kprobes arch_arm_kprobe(struct kprobe *p)
+{
+	*p->addr = KPROBE_BREAKPOINT_INSTRUCTION;
+	flush_insns(p->addr, 1);
+}
+
+void __kprobes arch_disarm_kprobe(struct kprobe *p)
+{
+	*p->addr = p->opcode;
+	flush_insns(p->addr, 1);
+}
+
+void __kprobes arch_remove_kprobe(struct kprobe *p)
+{
+	if (p->ainsn.insn) {
+		mutex_lock(&kprobe_mutex);
+		free_insn_slot(p->ainsn.insn, 0);
+		mutex_unlock(&kprobe_mutex);
+		p->ainsn.insn = NULL;
+	}
+}
+
+static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
+{
+	kcb->prev_kprobe.kp = kprobe_running();
+	kcb->prev_kprobe.status = kcb->kprobe_status;
+}
+
+static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
+{
+	__get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp;
+	kcb->kprobe_status = kcb->prev_kprobe.status;
+}
+
+static void __kprobes set_current_kprobe(struct kprobe *p)
+{
+	__get_cpu_var(current_kprobe) = p;
+}
+
+static void __kprobes singlestep(struct kprobe *p, struct pt_regs *regs,
+				 struct kprobe_ctlblk *kcb)
+{
+	regs->ARM_pc += 4;
+	p->ainsn.insn_handler(p, regs);
+}
+
+/*
+ * Called with IRQs disabled. IRQs must remain disabled from that point
+ * all the way until processing this kprobe is complete.  The current
+ * kprobes implementation cannot process more than one nested level of
+ * kprobe, and that level is reserved for user kprobe handlers, so we can't
+ * risk encountering a new kprobe in an interrupt handler.
+ */
+void __kprobes kprobe_handler(struct pt_regs *regs)
+{
+	struct kprobe *p, *cur;
+	struct kprobe_ctlblk *kcb;
+	kprobe_opcode_t	*addr = (kprobe_opcode_t *)regs->ARM_pc;
+
+	kcb = get_kprobe_ctlblk();
+	cur = kprobe_running();
+	p = get_kprobe(addr);
+
+	if (p) {
+		if (cur) {
+			/* Kprobe is pending, so we're recursing. */
+			switch (kcb->kprobe_status) {
+			case KPROBE_HIT_ACTIVE:
+			case KPROBE_HIT_SSDONE:
+				/* A pre- or post-handler probe got us here. */
+				kprobes_inc_nmissed_count(p);
+				save_previous_kprobe(kcb);
+				set_current_kprobe(p);
+				kcb->kprobe_status = KPROBE_REENTER;
+				singlestep(p, regs, kcb);
+				restore_previous_kprobe(kcb);
+				break;
+			default:
+				/* impossible cases */
+				BUG();
+			}
+		} else {
+			set_current_kprobe(p);
+			kcb->kprobe_status = KPROBE_HIT_ACTIVE;
+
+			/*
+			 * If we have no pre-handler or it returned 0, we
+			 * continue with normal processing.  If we have a
+			 * pre-handler and it returned non-zero, it prepped
+			 * for calling the break_handler below on re-entry,
+			 * so get out doing nothing more here.
+			 */
+			if (!p->pre_handler || !p->pre_handler(p, regs)) {
+				kcb->kprobe_status = KPROBE_HIT_SS;
+				singlestep(p, regs, kcb);
+				if (p->post_handler) {
+					kcb->kprobe_status = KPROBE_HIT_SSDONE;
+					p->post_handler(p, regs, 0);
+				}
+				reset_current_kprobe();
+			}
+		}
+	} else if (cur) {
+		/* We probably hit a jprobe.  Call its break handler. */
+		if (cur->break_handler && cur->break_handler(cur, regs)) {
+			kcb->kprobe_status = KPROBE_HIT_SS;
+			singlestep(cur, regs, kcb);
+			if (cur->post_handler) {
+				kcb->kprobe_status = KPROBE_HIT_SSDONE;
+				cur->post_handler(cur, regs, 0);
+			}
+		}
+		reset_current_kprobe();
+	} else {
+		/*
+		 * The probe was removed and a race is in progress.
+		 * There is nothing we can do about it.  Let's restart
+		 * the instruction.  By the time we can restart, the
+		 * real instruction will be there.
+		 */
+	}
+}
+
+static int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr)
+{
+	kprobe_handler(regs);
+	return 0;
+}
+
+int __kprobes kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr)
+{
+	struct kprobe *cur = kprobe_running();
+	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
+
+	switch (kcb->kprobe_status) {
+	case KPROBE_HIT_SS:
+	case KPROBE_REENTER:
+		/*
+		 * We are here because the instruction being single
+		 * stepped caused a page fault. We reset the current
+		 * kprobe and the PC to point back to the probe address
+		 * and allow the page fault handler to continue as a
+		 * normal page fault.
+		 */
+		regs->ARM_pc = (long)cur->addr;
+		if (kcb->kprobe_status == KPROBE_REENTER) {
+			restore_previous_kprobe(kcb);
+		} else {
+			reset_current_kprobe();
+		}
+		break;
+
+	case KPROBE_HIT_ACTIVE:
+	case KPROBE_HIT_SSDONE:
+		/*
+		 * We increment the nmissed count for accounting,
+		 * we can also use npre/npostfault count for accounting
+		 * these specific fault cases.
+		 */
+		kprobes_inc_nmissed_count(cur);
+
+		/*
+		 * We come here because instructions in the pre/post
+		 * handler caused the page_fault, this could happen
+		 * if handler tries to access user space by
+		 * copy_from_user(), get_user() etc. Let the
+		 * user-specified handler try to fix it.
+		 */
+		if (cur->fault_handler && cur->fault_handler(cur, regs, fsr))
+			return 1;
+		break;
+
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
+				       unsigned long val, void *data)
+{
+	/*
+	 * notify_die() is currently never called on ARM,
+	 * so this callback is currently empty.
+	 */
+	return NOTIFY_DONE;
+}
+
+/*
+ * When a retprobed function returns, trampoline_handler() is called,
+ * calling the kretprobe's handler. We construct a struct pt_regs to
+ * give a view of registers r0-r11 to the user return-handler.  This is
+ * not a complete pt_regs structure, but that should be plenty sufficient
+ * for kretprobe handlers which should normally be interested in r0 only
+ * anyway.
+ */
+static void __attribute__((naked)) __kprobes kretprobe_trampoline(void)
+{
+	__asm__ __volatile__ (
+		"stmdb	sp!, {r0 - r11}		\n\t"
+		"mov	r0, sp			\n\t"
+		"bl	trampoline_handler	\n\t"
+		"mov	lr, r0			\n\t"
+		"ldmia	sp!, {r0 - r11}		\n\t"
+		"mov	pc, lr			\n\t"
+		: : : "memory");
+}
+
+/* Called from kretprobe_trampoline */
+static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
+{
+	struct kretprobe_instance *ri = NULL;
+	struct hlist_head *head, empty_rp;
+	struct hlist_node *node, *tmp;
+	unsigned long flags, orig_ret_address = 0;
+	unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline;
+
+	INIT_HLIST_HEAD(&empty_rp);
+	spin_lock_irqsave(&kretprobe_lock, flags);
+	head = kretprobe_inst_table_head(current);
+
+	/*
+	 * It is possible to have multiple instances associated with a given
+	 * task either because multiple functions in the call path have
+	 * a return probe installed on them, and/or more than one return
+	 * probe was registered for a target function.
+	 *
+	 * We can handle this because:
+	 *     - instances are always inserted at the head of the list
+	 *     - when multiple return probes are registered for the same
+	 *       function, the first instance's ret_addr will point to the
+	 *       real return address, and all the rest will point to
+	 *       kretprobe_trampoline
+	 */
+	hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
+		if (ri->task != current)
+			/* another task is sharing our hash bucket */
+			continue;
+
+		if (ri->rp && ri->rp->handler) {
+			__get_cpu_var(current_kprobe) = &ri->rp->kp;
+			get_kprobe_ctlblk()->kprobe_status = KPROBE_HIT_ACTIVE;
+			ri->rp->handler(ri, regs);
+			__get_cpu_var(current_kprobe) = NULL;
+		}
+
+		orig_ret_address = (unsigned long)ri->ret_addr;
+		recycle_rp_inst(ri, &empty_rp);
+
+		if (orig_ret_address != trampoline_address)
+			/*
+			 * This is the real return address. Any other
+			 * instances associated with this task are for
+			 * other calls deeper on the call stack
+			 */
+			break;
+	}
+
+	kretprobe_assert(ri, orig_ret_address, trampoline_address);
+	spin_unlock_irqrestore(&kretprobe_lock, flags);
+
+	hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
+		hlist_del(&ri->hlist);
+		kfree(ri);
+	}
+
+	return (void *)orig_ret_address;
+}
+
+/* Called with kretprobe_lock held. */
+void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
+				      struct pt_regs *regs)
+{
+	ri->ret_addr = (kprobe_opcode_t *)regs->ARM_lr;
+
+	/* Replace the return addr with trampoline addr. */
+	regs->ARM_lr = (unsigned long)&kretprobe_trampoline;
+}
+
+int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
+{
+	struct jprobe *jp = container_of(p, struct jprobe, kp);
+	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
+	long sp_addr = regs->ARM_sp;
+
+	kcb->jprobe_saved_regs = *regs;
+	memcpy(kcb->jprobes_stack, (void *)sp_addr, MIN_STACK_SIZE(sp_addr));
+	regs->ARM_pc = (long)jp->entry;
+	regs->ARM_cpsr |= PSR_I_BIT;
+	preempt_disable();
+	return 1;
+}
+
+void __kprobes jprobe_return(void)
+{
+	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
+
+	__asm__ __volatile__ (
+		/*
+		 * Setup an empty pt_regs. Fill SP and PC fields as
+		 * they're needed by longjmp_break_handler.
+		 */
+		"sub    sp, %0, %1		\n\t"
+		"ldr    r0, ="__stringify(JPROBE_MAGIC_ADDR)"\n\t"
+		"str    %0, [sp, %2]		\n\t"
+		"str    r0, [sp, %3]		\n\t"
+		"mov    r0, sp			\n\t"
+		"bl     kprobe_handler		\n\t"
+
+		/*
+		 * Return to the context saved by setjmp_pre_handler
+		 * and restored by longjmp_break_handler.
+		 */
+		"ldr	r0, [sp, %4]		\n\t"
+		"msr	cpsr_cxsf, r0		\n\t"
+		"ldmia	sp, {r0 - pc}		\n\t"
+		:
+		: "r" (kcb->jprobe_saved_regs.ARM_sp),
+		  "I" (sizeof(struct pt_regs)),
+		  "J" (offsetof(struct pt_regs, ARM_sp)),
+		  "J" (offsetof(struct pt_regs, ARM_pc)),
+		  "J" (offsetof(struct pt_regs, ARM_cpsr))
+		: "memory", "cc");
+}
+
+int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
+{
+	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
+	long stack_addr = kcb->jprobe_saved_regs.ARM_sp;
+	long orig_sp = regs->ARM_sp;
+	struct jprobe *jp = container_of(p, struct jprobe, kp);
+
+	if (regs->ARM_pc == JPROBE_MAGIC_ADDR) {
+		if (orig_sp != stack_addr) {
+			struct pt_regs *saved_regs =
+				(struct pt_regs *)kcb->jprobe_saved_regs.ARM_sp;
+			printk("current sp %lx does not match saved sp %lx\n",
+			       orig_sp, stack_addr);
+			printk("Saved registers for jprobe %p\n", jp);
+			show_regs(saved_regs);
+			printk("Current registers\n");
+			show_regs(regs);
+			BUG();
+		}
+		*regs = kcb->jprobe_saved_regs;
+		memcpy((void *)stack_addr, kcb->jprobes_stack,
+		       MIN_STACK_SIZE(stack_addr));
+		preempt_enable_no_resched();
+		return 1;
+	}
+	return 0;
+}
+
+static struct undef_hook kprobes_break_hook = {
+	.instr_mask	= 0xffffffff,
+	.instr_val	= KPROBE_BREAKPOINT_INSTRUCTION,
+	.cpsr_mask	= MODE_MASK,
+	.cpsr_val	= SVC_MODE,
+	.fn		= kprobe_trap_handler,
+};
+
+int __init arch_init_kprobes()
+{
+	arm_kprobe_decode_init();
+	register_undef_hook(&kprobes_break_hook);
+	return 0;
+}
diff --git a/include/asm-arm/kprobes.h b/include/asm-arm/kprobes.h
index 951322328793..273f37413ee6 100644
--- a/include/asm-arm/kprobes.h
+++ b/include/asm-arm/kprobes.h
@@ -18,6 +18,16 @@
 
 #include <linux/types.h>
 #include <linux/ptrace.h>
+#include <linux/percpu.h>
+
+#define ARCH_SUPPORTS_KRETPROBES
+#define __ARCH_WANT_KPROBES_INSN_SLOT
+#define MAX_INSN_SIZE			2
+#define MAX_STACK_SIZE			64	/* 32 would probably be OK */
+
+#define regs_return_value(regs)		((regs)->ARM_r0)
+#define flush_insn_slot(p)		do { } while (0)
+#define kretprobe_blacklist_size	0
 
 typedef u32 kprobe_opcode_t;
 
@@ -30,6 +40,25 @@ struct arch_specific_insn {
 	kprobe_insn_handler_t	*insn_handler;
 };
 
+struct prev_kprobe {
+	struct kprobe *kp;
+	unsigned int status;
+};
+
+/* per-cpu kprobe control block */
+struct kprobe_ctlblk {
+	unsigned int kprobe_status;
+	struct prev_kprobe prev_kprobe;
+	struct pt_regs jprobe_saved_regs;
+	char jprobes_stack[MAX_STACK_SIZE];
+};
+
+void arch_remove_kprobe(struct kprobe *);
+
+int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
+int kprobe_exceptions_notify(struct notifier_block *self,
+			     unsigned long val, void *data);
+
 enum kprobe_insn {
 	INSN_REJECTED,
 	INSN_GOOD,
-- 
cgit v1.2.3-59-g8ed1b


From 25ce1dd71b8326f2542cf030f68e0e64c3d94dc1 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Mon, 3 Dec 2007 15:21:57 -0500
Subject: ARM kprobes: add the kprobes hook to the page fault handler

Signed-off-by: Nicolas Pitre <nico@marvell.com>
---
 arch/arm/mm/fault.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index a8a7dab757eb..1e7b1ed304d8 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -12,6 +12,7 @@
 #include <linux/signal.h>
 #include <linux/mm.h>
 #include <linux/init.h>
+#include <linux/kprobes.h>
 
 #include <asm/system.h>
 #include <asm/pgtable.h>
@@ -20,6 +21,29 @@
 
 #include "fault.h"
 
+
+#ifdef CONFIG_KPROBES
+static inline int notify_page_fault(struct pt_regs *regs, unsigned int fsr)
+{
+	int ret = 0;
+
+	if (!user_mode(regs)) {
+		/* kprobe_running() needs smp_processor_id() */
+		preempt_disable();
+		if (kprobe_running() && kprobe_fault_handler(regs, fsr))
+			ret = 1;
+		preempt_enable();
+	}
+
+	return ret;
+}
+#else
+static inline int notify_page_fault(struct pt_regs *regs, unsigned int fsr)
+{
+	return 0;
+}
+#endif
+
 /*
  * This is useful to dump out the page tables associated with
  * 'addr' in mm 'mm'.
@@ -222,6 +246,9 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	struct mm_struct *mm;
 	int fault, sig, code;
 
+	if (notify_page_fault(regs, fsr))
+		return 0;
+
 	tsk = current;
 	mm  = tsk->mm;
 
-- 
cgit v1.2.3-59-g8ed1b


From d30a0c8bf99f0e6a7d8c57bd4524039585ffbced Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Fri, 14 Dec 2007 15:56:01 -0500
Subject: ARM kprobes: don't let a single-stepped stmdb corrupt the exception
 stack

If kprobes installs a breakpoint on a "stmdb sp!, {...}" instruction,
and then single-step it by simulation from the exception context, it will
corrupt the saved regs on the stack from the previous context.

To avoid this, let's add an optional parameter to the svc_entry macro
allowing for a hole to be created on the stack before saving the
interrupted context, and use it in the undef_svc handler when kprobes
is enabled.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
---
 arch/arm/kernel/entry-armv.S | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 29dec080a604..12ecc817be3f 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -112,8 +112,8 @@ common_invalid:
 #define SPFIX(code...)
 #endif
 
-	.macro	svc_entry
-	sub	sp, sp, #S_FRAME_SIZE
+	.macro	svc_entry, stack_hole=0
+	sub	sp, sp, #(S_FRAME_SIZE + \stack_hole)
  SPFIX(	tst	sp, #4		)
  SPFIX(	bicne	sp, sp, #4	)
 	stmib	sp, {r1 - r12}
@@ -121,7 +121,7 @@ common_invalid:
 	ldmia	r0, {r1 - r3}
 	add	r5, sp, #S_SP		@ here for interlock avoidance
 	mov	r4, #-1			@  ""  ""      ""       ""
-	add	r0, sp, #S_FRAME_SIZE   @  ""  ""      ""       ""
+	add	r0, sp, #(S_FRAME_SIZE + \stack_hole)
  SPFIX(	addne	r0, r0, #4	)
 	str	r1, [sp]		@ save the "real" r0 copied
 					@ from the exception stack
@@ -242,7 +242,14 @@ svc_preempt:
 
 	.align	5
 __und_svc:
+#ifdef CONFIG_KPROBES
+	@ If a kprobe is about to simulate a "stmdb sp..." instruction,
+	@ it obviously needs free stack space which then will belong to
+	@ the saved context.
+	svc_entry 64
+#else
 	svc_entry
+#endif
 
 	@
 	@ call emulation code, which returns using r9 if it has emulated
-- 
cgit v1.2.3-59-g8ed1b


From 785d3cd286f0bf67d1bf692559b9ae5de12678f5 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Mon, 3 Dec 2007 15:27:56 -0500
Subject: ARM kprobes: prevent some functions involved with kprobes from being
 probed

Signed-off-by: Nicolas Pitre <nico@marvell.com>
---
 arch/arm/kernel/entry-armv.S  | 8 +++++++-
 arch/arm/kernel/kprobes.c     | 2 +-
 arch/arm/kernel/traps.c       | 9 ---------
 arch/arm/kernel/vmlinux.lds.S | 1 +
 arch/arm/mm/fault.c           | 4 ++--
 include/asm-arm/traps.h       | 9 +++++++++
 6 files changed, 20 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 12ecc817be3f..3727537f5825 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -58,6 +58,12 @@
 
 	.endm
 
+#ifdef CONFIG_KPROBES
+	.section	.kprobes.text,"ax",%progbits
+#else
+	.text
+#endif
+
 /*
  * Invalid mode handlers
  */
@@ -562,7 +568,7 @@ do_fpe:
 	.data
 ENTRY(fp_enter)
 	.word	no_fp
-	.text
+	.previous
 
 no_fp:	mov	pc, lr
 
diff --git a/arch/arm/kernel/kprobes.c b/arch/arm/kernel/kprobes.c
index a18a8458e99d..450ee2cbfe17 100644
--- a/arch/arm/kernel/kprobes.c
+++ b/arch/arm/kernel/kprobes.c
@@ -55,7 +55,7 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
 	unsigned long addr = (unsigned long)p->addr;
 	int is;
 
-	if (addr & 0x3)
+	if (addr & 0x3 || in_exception_text(addr))
 		return -EINVAL;
 
 	insn = *p->addr;
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index c34db4e868fa..65bb762b2d80 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -46,15 +46,6 @@ __setup("user_debug=", user_debug_setup);
 
 static void dump_mem(const char *str, unsigned long bottom, unsigned long top);
 
-static inline int in_exception_text(unsigned long ptr)
-{
-	extern char __exception_text_start[];
-	extern char __exception_text_end[];
-
-	return ptr >= (unsigned long)&__exception_text_start &&
-	       ptr < (unsigned long)&__exception_text_end;
-}
-
 void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame)
 {
 #ifdef CONFIG_KALLSYMS
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 5ff5406666b4..30f732c7fdb5 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -94,6 +94,7 @@ SECTIONS
 			TEXT_TEXT
 			SCHED_TEXT
 			LOCK_TEXT
+			KPROBES_TEXT
 #ifdef CONFIG_MMU
 			*(.fixup)
 #endif
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 1e7b1ed304d8..28ad7ab1c0cd 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -239,7 +239,7 @@ out:
 	return fault;
 }
 
-static int
+static int __kprobes
 do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 {
 	struct task_struct *tsk;
@@ -338,7 +338,7 @@ no_context:
  * interrupt or a critical region, and should only copy the information
  * from the master page table, nothing more.
  */
-static int
+static int __kprobes
 do_translation_fault(unsigned long addr, unsigned int fsr,
 		     struct pt_regs *regs)
 {
diff --git a/include/asm-arm/traps.h b/include/asm-arm/traps.h
index d4f34dc83eb0..f1541afcf85c 100644
--- a/include/asm-arm/traps.h
+++ b/include/asm-arm/traps.h
@@ -15,4 +15,13 @@ struct undef_hook {
 void register_undef_hook(struct undef_hook *hook);
 void unregister_undef_hook(struct undef_hook *hook);
 
+static inline int in_exception_text(unsigned long ptr)
+{
+	extern char __exception_text_start[];
+	extern char __exception_text_end[];
+
+	return ptr >= (unsigned long)&__exception_text_start &&
+	       ptr < (unsigned long)&__exception_text_end;
+}
+
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 796969104cab0d454dbc792ad0d12a4f365a8564 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Mon, 3 Dec 2007 17:22:36 -0500
Subject: ARM kprobes: special hook for the kprobes breakpoint handler

The kprobes code is already able to cope with reentrant probes, so its
handler must be called outside of the region protected by undef_lock.

If ever this lock is released when handlers are called then this commit
could be reverted.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
---
 arch/arm/kernel/kprobes.c |  8 +-------
 arch/arm/kernel/traps.c   | 12 ++++++++++++
 include/asm-arm/kprobes.h |  7 +++++++
 3 files changed, 20 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/kprobes.c b/arch/arm/kernel/kprobes.c
index 450ee2cbfe17..a22a98c43ca5 100644
--- a/arch/arm/kernel/kprobes.c
+++ b/arch/arm/kernel/kprobes.c
@@ -26,12 +26,6 @@
 #include <asm/traps.h>
 #include <asm/cacheflush.h>
 
-/*
- * This undefined instruction must be unique and
- * reserved solely for kprobes' use.
- */
-#define KPROBE_BREAKPOINT_INSTRUCTION	0xe7f001f8
-
 #define MIN_STACK_SIZE(addr) 				\
 	min((unsigned long)MAX_STACK_SIZE,		\
 	    (unsigned long)current_thread_info() + THREAD_START_SP - (addr))
@@ -206,7 +200,7 @@ void __kprobes kprobe_handler(struct pt_regs *regs)
 	}
 }
 
-static int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr)
+int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr)
 {
 	kprobe_handler(regs);
 	return 0;
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 65bb762b2d80..5595fdd75e82 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -19,6 +19,7 @@
 #include <linux/kallsyms.h>
 #include <linux/delay.h>
 #include <linux/init.h>
+#include <linux/kprobes.h>
 
 #include <asm/atomic.h>
 #include <asm/cacheflush.h>
@@ -313,6 +314,17 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
 		get_user(instr, (u32 __user *)pc);
 	}
 
+#ifdef CONFIG_KPROBES
+	/*
+	 * It is possible to have recursive kprobes, so we can't call
+	 * the kprobe trap handler with the undef_lock held.
+	 */
+	if (instr == KPROBE_BREAKPOINT_INSTRUCTION && !user_mode(regs)) {
+		kprobe_trap_handler(regs, instr);
+		return;
+	}
+#endif
+
 	spin_lock_irqsave(&undef_lock, flags);
 	list_for_each_entry(hook, &undef_hook, node) {
 		if ((instr & hook->instr_mask) == hook->instr_val &&
diff --git a/include/asm-arm/kprobes.h b/include/asm-arm/kprobes.h
index 273f37413ee6..4e7bd32288ae 100644
--- a/include/asm-arm/kprobes.h
+++ b/include/asm-arm/kprobes.h
@@ -25,6 +25,12 @@
 #define MAX_INSN_SIZE			2
 #define MAX_STACK_SIZE			64	/* 32 would probably be OK */
 
+/*
+ * This undefined instruction must be unique and
+ * reserved solely for kprobes' use.
+ */
+#define KPROBE_BREAKPOINT_INSTRUCTION	0xe7f001f8
+
 #define regs_return_value(regs)		((regs)->ARM_r0)
 #define flush_insn_slot(p)		do { } while (0)
 #define kretprobe_blacklist_size	0
@@ -55,6 +61,7 @@ struct kprobe_ctlblk {
 
 void arch_remove_kprobe(struct kprobe *);
 
+int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr);
 int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
 int kprobe_exceptions_notify(struct notifier_block *self,
 			     unsigned long val, void *data);
-- 
cgit v1.2.3-59-g8ed1b


From 5de865b4c5af253db19bdae3c0553952dc7eda1d Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Mon, 3 Dec 2007 17:15:52 -0500
Subject: ARM kprobes: let's enable it

Signed-off-by: Nicolas Pitre <nico@marvell.com>
---
 Documentation/kprobes.txt        |  1 +
 arch/arm/Kconfig.instrumentation | 10 ++++++++++
 2 files changed, 11 insertions(+)

(limited to 'arch')

diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
index cb12ae175aa2..53a63890aea4 100644
--- a/Documentation/kprobes.txt
+++ b/Documentation/kprobes.txt
@@ -141,6 +141,7 @@ architectures:
 - ppc64
 - ia64 (Does not support probes on instruction slot1.)
 - sparc64 (Return probes not yet implemented.)
+- arm
 
 3. Configuring Kprobes
 
diff --git a/arch/arm/Kconfig.instrumentation b/arch/arm/Kconfig.instrumentation
index 63b8c6d5606a..453ad8e15d69 100644
--- a/arch/arm/Kconfig.instrumentation
+++ b/arch/arm/Kconfig.instrumentation
@@ -43,6 +43,16 @@ config OPROFILE_MPCORE
 config OPROFILE_ARM11_CORE
 	bool
 
+config KPROBES
+	bool "Kprobes"
+	depends on KALLSYMS && MODULES && !UML && !XIP_KERNEL
+	help
+	  Kprobes allows you to trap at almost any kernel address and
+	  execute a callback function.  register_kprobe() establishes
+	  a probepoint and specifies the callback.  Kprobes is useful
+	  for kernel debugging, non-intrusive instrumentation and testing.
+	  If in doubt, say "N".
+
 config MARKERS
 	bool "Activate markers"
 	help
-- 
cgit v1.2.3-59-g8ed1b


From eee87d3196c9a7ac3422f4298e2250ca68d791c1 Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@kernel.org>
Date: Sun, 27 Jan 2008 18:14:45 +0100
Subject: i2c: the scheduled I2C RTC driver removal

This patch contains the scheduled removal of legacy I2C RTC drivers with
replacement drivers.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 Documentation/feature-removal-schedule.txt |   7 -
 arch/ppc/platforms/83xx/mpc834x_sys.c      |  20 --
 arch/ppc/platforms/85xx/tqm85xx.c          |  21 --
 arch/ppc/platforms/katana.c                |  21 --
 drivers/i2c/chips/Kconfig                  |  38 ---
 drivers/i2c/chips/Makefile                 |   3 -
 drivers/i2c/chips/ds1337.c                 | 410 ----------------------------
 drivers/i2c/chips/ds1374.c                 | 267 -------------------
 drivers/i2c/chips/m41t00.c                 | 413 -----------------------------
 include/linux/i2c-id.h                     |   2 -
 include/linux/m41t00.h                     |  50 ----
 11 files changed, 1252 deletions(-)
 delete mode 100644 drivers/i2c/chips/ds1337.c
 delete mode 100644 drivers/i2c/chips/ds1374.c
 delete mode 100644 drivers/i2c/chips/m41t00.c
 delete mode 100644 include/linux/m41t00.h

(limited to 'arch')

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 9b8291f4c211..2cd16deb7195 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -266,13 +266,6 @@ Who:  Tejun Heo <htejun@gmail.com>
 
 ---------------------------
 
-What:	Legacy RTC drivers (under drivers/i2c/chips)
-When:	November 2007
-Why:	Obsolete. We have a RTC subsystem with better drivers.
-Who:	Jean Delvare <khali@linux-fr.org>
-
----------------------------
-
 What:	iptables SAME target
 When:	1.1. 2008
 Files:	net/ipv4/netfilter/ipt_SAME.c, include/linux/netfilter_ipv4/ipt_SAME.h
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c b/arch/ppc/platforms/83xx/mpc834x_sys.c
index b84f8df325c4..cb0a7493ff64 100644
--- a/arch/ppc/platforms/83xx/mpc834x_sys.c
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.c
@@ -224,26 +224,6 @@ mpc834x_sys_init_IRQ(void)
 	ipic_set_default_priority();
 }
 
-#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
-extern ulong	ds1374_get_rtc_time(void);
-extern int	ds1374_set_rtc_time(ulong);
-
-static int __init
-mpc834x_rtc_hookup(void)
-{
-	struct timespec	tv;
-
-	ppc_md.get_rtc_time = ds1374_get_rtc_time;
-	ppc_md.set_rtc_time = ds1374_set_rtc_time;
-
-	tv.tv_nsec = 0;
-	tv.tv_sec = (ppc_md.get_rtc_time)();
-	do_settimeofday(&tv);
-
-	return 0;
-}
-late_initcall(mpc834x_rtc_hookup);
-#endif
 static __inline__ void
 mpc834x_sys_set_bat(void)
 {
diff --git a/arch/ppc/platforms/85xx/tqm85xx.c b/arch/ppc/platforms/85xx/tqm85xx.c
index 4ee2bd156dc5..27ce389c1224 100644
--- a/arch/ppc/platforms/85xx/tqm85xx.c
+++ b/arch/ppc/platforms/85xx/tqm85xx.c
@@ -258,27 +258,6 @@ int tqm85xx_show_cpuinfo(struct seq_file *m)
 	return 0;
 }
 
-#if defined(CONFIG_I2C) && defined(CONFIG_SENSORS_DS1337)
-extern ulong ds1337_get_rtc_time(void);
-extern int ds1337_set_rtc_time(unsigned long nowtime);
-
-static int __init
-tqm85xx_rtc_hookup(void)
-{
-	struct timespec	tv;
-
-        ppc_md.set_rtc_time = ds1337_set_rtc_time;
-        ppc_md.get_rtc_time = ds1337_get_rtc_time;
-
-	tv.tv_nsec = 0;
-	tv.tv_sec = (ppc_md.get_rtc_time)();
-	do_settimeofday(&tv);
-
-	return 0;
-}
-late_initcall(tqm85xx_rtc_hookup);
-#endif
-
 #ifdef CONFIG_PCI
 /*
  * interrupt routing
diff --git a/arch/ppc/platforms/katana.c b/arch/ppc/platforms/katana.c
index 52f63e6f0856..fe6e88cdb1cd 100644
--- a/arch/ppc/platforms/katana.c
+++ b/arch/ppc/platforms/katana.c
@@ -838,27 +838,6 @@ katana_find_end_of_memory(void)
 	return bdp->bi_memsize;
 }
 
-#if defined(CONFIG_I2C_MV64XXX) && defined(CONFIG_SENSORS_M41T00)
-extern ulong	m41t00_get_rtc_time(void);
-extern int	m41t00_set_rtc_time(ulong);
-
-static int __init
-katana_rtc_hookup(void)
-{
-	struct timespec	tv;
-
-	ppc_md.get_rtc_time = m41t00_get_rtc_time;
-	ppc_md.set_rtc_time = m41t00_set_rtc_time;
-
-	tv.tv_nsec = 0;
-	tv.tv_sec = (ppc_md.get_rtc_time)();
-	do_settimeofday(&tv);
-
-	return 0;
-}
-late_initcall(katana_rtc_hookup);
-#endif
-
 #if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(CONFIG_SERIAL_MPSC_CONSOLE)
 static void __init
 katana_map_io(void)
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index 17702b32eab0..fe3008e59467 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -4,32 +4,6 @@
 
 menu "Miscellaneous I2C Chip support"
 
-config SENSORS_DS1337
-	tristate "Dallas DS1337 and DS1339 Real Time Clock (DEPRECATED)"
-	depends on EXPERIMENTAL
-	help
-	  If you say yes here you get support for Dallas Semiconductor
-	  DS1337 and DS1339 real-time clock chips.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called ds1337.
-
-	  This driver is deprecated and will be dropped soon. Use
-	  rtc-ds1307 instead.
-
-config SENSORS_DS1374
-	tristate "Dallas DS1374 Real Time Clock (DEPRECATED)"
-	depends on EXPERIMENTAL
-	help
-	  If you say yes here you get support for Dallas Semiconductor
-	  DS1374 real-time clock chips.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called ds1374.
-
-	  This driver is deprecated and will be dropped soon. Use
-	  rtc-ds1374 instead.
-
 config DS1682
 	tristate "Dallas DS1682 Total Elapsed Time Recorder with Alarm"
 	depends on EXPERIMENTAL
@@ -130,18 +104,6 @@ config TPS65010
 	  This driver can also be built as a module.  If so, the module
 	  will be called tps65010.
 
-config SENSORS_M41T00
-	tristate "ST M41T00 RTC chip (DEPRECATED)"
-	depends on PPC32
-	help
-	  If you say yes here you get support for the ST M41T00 RTC chip.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called m41t00.
-
-	  This driver is deprecated and will be dropped soon. Use
-	  rtc-ds1307 or rtc-m41t80 instead.
-
 config SENSORS_MAX6875
 	tristate "Maxim MAX6875 Power supply supervisor"
 	depends on EXPERIMENTAL
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index 50d4734b5038..501f00cea782 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -2,12 +2,9 @@
 # Makefile for miscellaneous I2C chip drivers.
 #
 
-obj-$(CONFIG_SENSORS_DS1337)	+= ds1337.o
-obj-$(CONFIG_SENSORS_DS1374)	+= ds1374.o
 obj-$(CONFIG_DS1682)		+= ds1682.o
 obj-$(CONFIG_SENSORS_EEPROM)	+= eeprom.o
 obj-$(CONFIG_SENSORS_MAX6875)	+= max6875.o
-obj-$(CONFIG_SENSORS_M41T00)	+= m41t00.o
 obj-$(CONFIG_SENSORS_PCA9539)	+= pca9539.o
 obj-$(CONFIG_SENSORS_PCF8574)	+= pcf8574.o
 obj-$(CONFIG_PCF8575)		+= pcf8575.o
diff --git a/drivers/i2c/chips/ds1337.c b/drivers/i2c/chips/ds1337.c
deleted file mode 100644
index ec17d6b684a2..000000000000
--- a/drivers/i2c/chips/ds1337.c
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- *  linux/drivers/i2c/chips/ds1337.c
- *
- *  Copyright (C) 2005 James Chapman <jchapman@katalix.com>
- *
- *	based on linux/drivers/acorn/char/pcf8583.c
- *  Copyright (C) 2000 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Driver for Dallas Semiconductor DS1337 and DS1339 real time clock chip
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/string.h>
-#include <linux/rtc.h>		/* get the user-level API */
-#include <linux/bcd.h>
-#include <linux/list.h>
-
-/* Device registers */
-#define DS1337_REG_HOUR		2
-#define DS1337_REG_DAY		3
-#define DS1337_REG_DATE		4
-#define DS1337_REG_MONTH	5
-#define DS1337_REG_CONTROL	14
-#define DS1337_REG_STATUS	15
-
-/* FIXME - how do we export these interface constants? */
-#define DS1337_GET_DATE		0
-#define DS1337_SET_DATE		1
-
-/*
- * Functions declaration
- */
-static unsigned short normal_i2c[] = { 0x68, I2C_CLIENT_END };
-
-I2C_CLIENT_INSMOD_1(ds1337);
-
-static int ds1337_attach_adapter(struct i2c_adapter *adapter);
-static int ds1337_detect(struct i2c_adapter *adapter, int address, int kind);
-static void ds1337_init_client(struct i2c_client *client);
-static int ds1337_detach_client(struct i2c_client *client);
-static int ds1337_command(struct i2c_client *client, unsigned int cmd,
-			  void *arg);
-
-/*
- * Driver data (common to all clients)
- */
-static struct i2c_driver ds1337_driver = {
-	.driver = {
-		.name	= "ds1337",
-	},
-	.attach_adapter	= ds1337_attach_adapter,
-	.detach_client	= ds1337_detach_client,
-	.command	= ds1337_command,
-};
-
-/*
- * Client data (each client gets its own)
- */
-struct ds1337_data {
-	struct i2c_client client;
-	struct list_head list;
-};
-
-/*
- * Internal variables
- */
-static LIST_HEAD(ds1337_clients);
-
-static inline int ds1337_read(struct i2c_client *client, u8 reg, u8 *value)
-{
-	s32 tmp = i2c_smbus_read_byte_data(client, reg);
-
-	if (tmp < 0)
-		return -EIO;
-
-	*value = tmp;
-
-	return 0;
-}
-
-/*
- * Chip access functions
- */
-static int ds1337_get_datetime(struct i2c_client *client, struct rtc_time *dt)
-{
-	int result;
-	u8 buf[7];
-	u8 val;
-	struct i2c_msg msg[2];
-	u8 offs = 0;
-
-	if (!dt) {
-		dev_dbg(&client->dev, "%s: EINVAL: dt=NULL\n", __FUNCTION__);
-		return -EINVAL;
-	}
-
-	msg[0].addr = client->addr;
-	msg[0].flags = 0;
-	msg[0].len = 1;
-	msg[0].buf = &offs;
-
-	msg[1].addr = client->addr;
-	msg[1].flags = I2C_M_RD;
-	msg[1].len = sizeof(buf);
-	msg[1].buf = &buf[0];
-
-	result = i2c_transfer(client->adapter, msg, 2);
-
-	dev_dbg(&client->dev, "%s: [%d] %02x %02x %02x %02x %02x %02x %02x\n",
-		__FUNCTION__, result, buf[0], buf[1], buf[2], buf[3],
-		buf[4], buf[5], buf[6]);
-
-	if (result == 2) {
-		dt->tm_sec = BCD2BIN(buf[0]);
-		dt->tm_min = BCD2BIN(buf[1]);
-		val = buf[2] & 0x3f;
-		dt->tm_hour = BCD2BIN(val);
-		dt->tm_wday = BCD2BIN(buf[3]) - 1;
-		dt->tm_mday = BCD2BIN(buf[4]);
-		val = buf[5] & 0x7f;
-		dt->tm_mon = BCD2BIN(val) - 1;
-		dt->tm_year = BCD2BIN(buf[6]);
-		if (buf[5] & 0x80)
-			dt->tm_year += 100;
-
-		dev_dbg(&client->dev, "%s: secs=%d, mins=%d, "
-			"hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n",
-			__FUNCTION__, dt->tm_sec, dt->tm_min,
-			dt->tm_hour, dt->tm_mday,
-			dt->tm_mon, dt->tm_year, dt->tm_wday);
-
-		return 0;
-	}
-
-	dev_err(&client->dev, "error reading data! %d\n", result);
-	return -EIO;
-}
-
-static int ds1337_set_datetime(struct i2c_client *client, struct rtc_time *dt)
-{
-	int result;
-	u8 buf[8];
-	u8 val;
-	struct i2c_msg msg[1];
-
-	if (!dt) {
-		dev_dbg(&client->dev, "%s: EINVAL: dt=NULL\n", __FUNCTION__);
-		return -EINVAL;
-	}
-
-	dev_dbg(&client->dev, "%s: secs=%d, mins=%d, hours=%d, "
-		"mday=%d, mon=%d, year=%d, wday=%d\n", __FUNCTION__,
-		dt->tm_sec, dt->tm_min, dt->tm_hour,
-		dt->tm_mday, dt->tm_mon, dt->tm_year, dt->tm_wday);
-
-	buf[0] = 0;		/* reg offset */
-	buf[1] = BIN2BCD(dt->tm_sec);
-	buf[2] = BIN2BCD(dt->tm_min);
-	buf[3] = BIN2BCD(dt->tm_hour);
-	buf[4] = BIN2BCD(dt->tm_wday + 1);
-	buf[5] = BIN2BCD(dt->tm_mday);
-	buf[6] = BIN2BCD(dt->tm_mon + 1);
-	val = dt->tm_year;
-	if (val >= 100) {
-		val -= 100;
-		buf[6] |= (1 << 7);
-	}
-	buf[7] = BIN2BCD(val);
-
-	msg[0].addr = client->addr;
-	msg[0].flags = 0;
-	msg[0].len = sizeof(buf);
-	msg[0].buf = &buf[0];
-
-	result = i2c_transfer(client->adapter, msg, 1);
-	if (result == 1)
-		return 0;
-
-	dev_err(&client->dev, "error writing data! %d\n", result);
-	return -EIO;
-}
-
-static int ds1337_command(struct i2c_client *client, unsigned int cmd,
-			  void *arg)
-{
-	dev_dbg(&client->dev, "%s: cmd=%d\n", __FUNCTION__, cmd);
-
-	switch (cmd) {
-	case DS1337_GET_DATE:
-		return ds1337_get_datetime(client, arg);
-
-	case DS1337_SET_DATE:
-		return ds1337_set_datetime(client, arg);
-
-	default:
-		return -EINVAL;
-	}
-}
-
-/*
- * Public API for access to specific device. Useful for low-level
- * RTC access from kernel code.
- */
-int ds1337_do_command(int bus, int cmd, void *arg)
-{
-	struct list_head *walk;
-	struct list_head *tmp;
-	struct ds1337_data *data;
-
-	list_for_each_safe(walk, tmp, &ds1337_clients) {
-		data = list_entry(walk, struct ds1337_data, list);
-		if (data->client.adapter->nr == bus)
-			return ds1337_command(&data->client, cmd, arg);
-	}
-
-	return -ENODEV;
-}
-
-static int ds1337_attach_adapter(struct i2c_adapter *adapter)
-{
-	return i2c_probe(adapter, &addr_data, ds1337_detect);
-}
-
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
-static int ds1337_detect(struct i2c_adapter *adapter, int address, int kind)
-{
-	struct i2c_client *new_client;
-	struct ds1337_data *data;
-	int err = 0;
-	const char *name = "";
-
-	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
-				     I2C_FUNC_I2C))
-		goto exit;
-
-	if (!(data = kzalloc(sizeof(struct ds1337_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-	INIT_LIST_HEAD(&data->list);
-
-	/* The common I2C client data is placed right before the
-	 * DS1337-specific data. 
-	 */
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &ds1337_driver;
-	new_client->flags = 0;
-
-	/*
-	 * Now we do the remaining detection. A negative kind means that
-	 * the driver was loaded with no force parameter (default), so we
-	 * must both detect and identify the chip. A zero kind means that
-	 * the driver was loaded with the force parameter, the detection
-	 * step shall be skipped. A positive kind means that the driver
-	 * was loaded with the force parameter and a given kind of chip is
-	 * requested, so both the detection and the identification steps
-	 * are skipped.
-	 *
-	 * For detection, we read registers that are most likely to cause
-	 * detection failure, i.e. those that have more bits with fixed
-	 * or reserved values.
-	 */
-
-	/* Default to an DS1337 if forced */
-	if (kind == 0)
-		kind = ds1337;
-
-	if (kind < 0) {		/* detection and identification */
-		u8 data;
-
-		/* Check that status register bits 6-2 are zero */
-		if ((ds1337_read(new_client, DS1337_REG_STATUS, &data) < 0) ||
-		    (data & 0x7c))
-			goto exit_free;
-
-		/* Check for a valid day register value */
-		if ((ds1337_read(new_client, DS1337_REG_DAY, &data) < 0) ||
-		    (data == 0) || (data & 0xf8))
-			goto exit_free;
-
-		/* Check for a valid date register value */
-		if ((ds1337_read(new_client, DS1337_REG_DATE, &data) < 0) ||
-		    (data == 0) || (data & 0xc0) || ((data & 0x0f) > 9) ||
-		    (data >= 0x32))
-			goto exit_free;
-
-		/* Check for a valid month register value */
-		if ((ds1337_read(new_client, DS1337_REG_MONTH, &data) < 0) ||
-		    (data == 0) || (data & 0x60) || ((data & 0x0f) > 9) ||
-		    ((data >= 0x13) && (data <= 0x19)))
-			goto exit_free;
-
-		/* Check that control register bits 6-5 are zero */
-		if ((ds1337_read(new_client, DS1337_REG_CONTROL, &data) < 0) ||
-		    (data & 0x60))
-			goto exit_free;
-
-		kind = ds1337;
-	}
-
-	if (kind == ds1337)
-		name = "ds1337";
-
-	/* We can fill in the remaining client fields */
-	strlcpy(new_client->name, name, I2C_NAME_SIZE);
-
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_free;
-
-	/* Initialize the DS1337 chip */
-	ds1337_init_client(new_client);
-
-	/* Add client to local list */
-	list_add(&data->list, &ds1337_clients);
-
-	return 0;
-
-exit_free:
-	kfree(data);
-exit:
-	return err;
-}
-
-static void ds1337_init_client(struct i2c_client *client)
-{
-	u8 status, control;
-
-	/* On some boards, the RTC isn't configured by boot firmware.
-	 * Handle that case by starting/configuring the RTC now.
-	 */
-	status = i2c_smbus_read_byte_data(client, DS1337_REG_STATUS);
-	control = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL);
-
-	if ((status & 0x80) || (control & 0x80)) {
-		/* RTC not running */
-		u8 buf[1+16];	/* First byte is interpreted as address */
-		struct i2c_msg msg[1];
-
-		dev_dbg(&client->dev, "%s: RTC not running!\n", __FUNCTION__);
-
-		/* Initialize all, including STATUS and CONTROL to zero */
-		memset(buf, 0, sizeof(buf));
-
-		/* Write valid values in the date/time registers */
-		buf[1+DS1337_REG_DAY] = 1;
-		buf[1+DS1337_REG_DATE] = 1;
-		buf[1+DS1337_REG_MONTH] = 1;
-
-		msg[0].addr = client->addr;
-		msg[0].flags = 0;
-		msg[0].len = sizeof(buf);
-		msg[0].buf = &buf[0];
-
-		i2c_transfer(client->adapter, msg, 1);
-	} else {
-		/* Running: ensure that device is set in 24-hour mode */
-		s32 val;
-
-		val = i2c_smbus_read_byte_data(client, DS1337_REG_HOUR);
-		if ((val >= 0) && (val & (1 << 6)))
-			i2c_smbus_write_byte_data(client, DS1337_REG_HOUR,
-						  val & 0x3f);
-	}
-}
-
-static int ds1337_detach_client(struct i2c_client *client)
-{
-	int err;
-	struct ds1337_data *data = i2c_get_clientdata(client);
-
-	if ((err = i2c_detach_client(client)))
-		return err;
-
-	list_del(&data->list);
-	kfree(data);
-	return 0;
-}
-
-static int __init ds1337_init(void)
-{
-	return i2c_add_driver(&ds1337_driver);
-}
-
-static void __exit ds1337_exit(void)
-{
-	i2c_del_driver(&ds1337_driver);
-}
-
-MODULE_AUTHOR("James Chapman <jchapman@katalix.com>");
-MODULE_DESCRIPTION("DS1337 RTC driver");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL_GPL(ds1337_do_command);
-
-module_init(ds1337_init);
-module_exit(ds1337_exit);
diff --git a/drivers/i2c/chips/ds1374.c b/drivers/i2c/chips/ds1374.c
deleted file mode 100644
index 8a2ff0c114d9..000000000000
--- a/drivers/i2c/chips/ds1374.c
+++ /dev/null
@@ -1,267 +0,0 @@
-/*
- * drivers/i2c/chips/ds1374.c
- *
- * I2C client/driver for the Maxim/Dallas DS1374 Real-Time Clock
- *
- * Author: Randy Vinson <rvinson@mvista.com>
- *
- * Based on the m41t00.c by Mark Greer <mgreer@mvista.com>
- *
- * 2005 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-/*
- * This i2c client/driver wedges between the drivers/char/genrtc.c RTC
- * interface and the SMBus interface of the i2c subsystem.
- * It would be more efficient to use i2c msgs/i2c_transfer directly but, as
- * recommened in .../Documentation/i2c/writing-clients section
- * "Sending and receiving", using SMBus level communication is preferred.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/i2c.h>
-#include <linux/rtc.h>
-#include <linux/bcd.h>
-#include <linux/mutex.h>
-#include <linux/workqueue.h>
-
-#define DS1374_REG_TOD0		0x00
-#define DS1374_REG_TOD1		0x01
-#define DS1374_REG_TOD2		0x02
-#define DS1374_REG_TOD3		0x03
-#define DS1374_REG_WDALM0	0x04
-#define DS1374_REG_WDALM1	0x05
-#define DS1374_REG_WDALM2	0x06
-#define DS1374_REG_CR		0x07
-#define DS1374_REG_SR		0x08
-#define DS1374_REG_SR_OSF	0x80
-#define DS1374_REG_TCR		0x09
-
-#define	DS1374_DRV_NAME		"ds1374"
-
-static DEFINE_MUTEX(ds1374_mutex);
-
-static struct i2c_driver ds1374_driver;
-static struct i2c_client *save_client;
-
-static unsigned short ignore[] = { I2C_CLIENT_END };
-static unsigned short normal_addr[] = { 0x68, I2C_CLIENT_END };
-
-static struct i2c_client_address_data addr_data = {
-	.normal_i2c = normal_addr,
-	.probe = ignore,
-	.ignore = ignore,
-};
-
-static ulong ds1374_read_rtc(void)
-{
-	ulong time = 0;
-	int reg = DS1374_REG_WDALM0;
-
-	while (reg--) {
-		s32 tmp;
-		if ((tmp = i2c_smbus_read_byte_data(save_client, reg)) < 0) {
-			dev_warn(&save_client->dev,
-				 "can't read from rtc chip\n");
-			return 0;
-		}
-		time = (time << 8) | (tmp & 0xff);
-	}
-	return time;
-}
-
-static void ds1374_write_rtc(ulong time)
-{
-	int reg;
-
-	for (reg = DS1374_REG_TOD0; reg < DS1374_REG_WDALM0; reg++) {
-		if (i2c_smbus_write_byte_data(save_client, reg, time & 0xff)
-		    < 0) {
-			dev_warn(&save_client->dev,
-				 "can't write to rtc chip\n");
-			break;
-		}
-		time = time >> 8;
-	}
-}
-
-static void ds1374_check_rtc_status(void)
-{
-	s32 tmp;
-
-	tmp = i2c_smbus_read_byte_data(save_client, DS1374_REG_SR);
-	if (tmp < 0) {
-		dev_warn(&save_client->dev,
-			 "can't read status from rtc chip\n");
-		return;
-	}
-	if (tmp & DS1374_REG_SR_OSF) {
-		dev_warn(&save_client->dev,
-			 "oscillator discontinuity flagged, time unreliable\n");
-		tmp &= ~DS1374_REG_SR_OSF;
-		tmp = i2c_smbus_write_byte_data(save_client, DS1374_REG_SR,
-						tmp & 0xff);
-		if (tmp < 0)
-			dev_warn(&save_client->dev,
-				 "can't clear discontinuity notification\n");
-	}
-}
-
-ulong ds1374_get_rtc_time(void)
-{
-	ulong t1, t2;
-	int limit = 10;		/* arbitrary retry limit */
-
-	mutex_lock(&ds1374_mutex);
-
-	/*
-	 * Since the reads are being performed one byte at a time using
-	 * the SMBus vs a 4-byte i2c transfer, there is a chance that a
-	 * carry will occur during the read. To detect this, 2 reads are
-	 * performed and compared.
-	 */
-	do {
-		t1 = ds1374_read_rtc();
-		t2 = ds1374_read_rtc();
-	} while (t1 != t2 && limit--);
-
-	mutex_unlock(&ds1374_mutex);
-
-	if (t1 != t2) {
-		dev_warn(&save_client->dev,
-			 "can't get consistent time from rtc chip\n");
-		t1 = 0;
-	}
-
-	return t1;
-}
-
-static ulong new_time;
-
-static void ds1374_set_work(struct work_struct *work)
-{
-	ulong t1, t2;
-	int limit = 10;		/* arbitrary retry limit */
-
-	t1 = new_time;
-
-	mutex_lock(&ds1374_mutex);
-
-	/*
-	 * Since the writes are being performed one byte at a time using
-	 * the SMBus vs a 4-byte i2c transfer, there is a chance that a
-	 * carry will occur during the write. To detect this, the write
-	 * value is read back and compared.
-	 */
-	do {
-		ds1374_write_rtc(t1);
-		t2 = ds1374_read_rtc();
-	} while (t1 != t2 && limit--);
-
-	mutex_unlock(&ds1374_mutex);
-
-	if (t1 != t2)
-		dev_warn(&save_client->dev,
-			 "can't confirm time set from rtc chip\n");
-}
-
-static struct workqueue_struct *ds1374_workqueue;
-
-static DECLARE_WORK(ds1374_work, ds1374_set_work);
-
-int ds1374_set_rtc_time(ulong nowtime)
-{
-	new_time = nowtime;
-
-	if (in_interrupt())
-		queue_work(ds1374_workqueue, &ds1374_work);
-	else
-		ds1374_set_work(NULL);
-
-	return 0;
-}
-
-/*
- *****************************************************************************
- *
- *	Driver Interface
- *
- *****************************************************************************
- */
-static int ds1374_probe(struct i2c_adapter *adap, int addr, int kind)
-{
-	struct i2c_client *client;
-	int rc;
-
-	client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-	if (!client)
-		return -ENOMEM;
-
-	strncpy(client->name, DS1374_DRV_NAME, I2C_NAME_SIZE);
-	client->addr = addr;
-	client->adapter = adap;
-	client->driver = &ds1374_driver;
-
-	ds1374_workqueue = create_singlethread_workqueue("ds1374");
-	if (!ds1374_workqueue) {
-		kfree(client);
-		return -ENOMEM;	/* most expected reason */
-	}
-
-	if ((rc = i2c_attach_client(client)) != 0) {
-		kfree(client);
-		return rc;
-	}
-
-	save_client = client;
-
-	ds1374_check_rtc_status();
-
-	return 0;
-}
-
-static int ds1374_attach(struct i2c_adapter *adap)
-{
-	return i2c_probe(adap, &addr_data, ds1374_probe);
-}
-
-static int ds1374_detach(struct i2c_client *client)
-{
-	int rc;
-
-	if ((rc = i2c_detach_client(client)) == 0) {
-		kfree(i2c_get_clientdata(client));
-		destroy_workqueue(ds1374_workqueue);
-	}
-	return rc;
-}
-
-static struct i2c_driver ds1374_driver = {
-	.driver = {
-		.name	= DS1374_DRV_NAME,
-	},
-	.id = I2C_DRIVERID_DS1374,
-	.attach_adapter = ds1374_attach,
-	.detach_client = ds1374_detach,
-};
-
-static int __init ds1374_init(void)
-{
-	return i2c_add_driver(&ds1374_driver);
-}
-
-static void __exit ds1374_exit(void)
-{
-	i2c_del_driver(&ds1374_driver);
-}
-
-module_init(ds1374_init);
-module_exit(ds1374_exit);
-
-MODULE_AUTHOR("Randy Vinson <rvinson@mvista.com>");
-MODULE_DESCRIPTION("Maxim/Dallas DS1374 RTC I2C Client Driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/chips/m41t00.c b/drivers/i2c/chips/m41t00.c
deleted file mode 100644
index 3fcb646e2073..000000000000
--- a/drivers/i2c/chips/m41t00.c
+++ /dev/null
@@ -1,413 +0,0 @@
-/*
- * I2C client/driver for the ST M41T00 family of i2c rtc chips.
- *
- * Author: Mark A. Greer <mgreer@mvista.com>
- *
- * 2005, 2006 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-/*
- * This i2c client/driver wedges between the drivers/char/genrtc.c RTC
- * interface and the SMBus interface of the i2c subsystem.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/i2c.h>
-#include <linux/rtc.h>
-#include <linux/bcd.h>
-#include <linux/workqueue.h>
-#include <linux/platform_device.h>
-#include <linux/m41t00.h>
-#include <asm/time.h>
-#include <asm/rtc.h>
-
-static struct i2c_driver m41t00_driver;
-static struct i2c_client *save_client;
-
-static unsigned short ignore[] = { I2C_CLIENT_END };
-static unsigned short normal_addr[] = { I2C_CLIENT_END, I2C_CLIENT_END };
-
-static struct i2c_client_address_data addr_data = {
-	.normal_i2c	= normal_addr,
-	.probe		= ignore,
-	.ignore		= ignore,
-};
-
-struct m41t00_chip_info {
-	u8	type;
-	char	*name;
-	u8	read_limit;
-	u8	sec;		/* Offsets for chip regs */
-	u8	min;
-	u8	hour;
-	u8	day;
-	u8	mon;
-	u8	year;
-	u8	alarm_mon;
-	u8	alarm_hour;
-	u8	sqw;
-	u8	sqw_freq;
-};
-
-static struct m41t00_chip_info m41t00_chip_info_tbl[] = {
-	{
-		.type		= M41T00_TYPE_M41T00,
-		.name		= "m41t00",
-		.read_limit	= 5,
-		.sec		= 0,
-		.min		= 1,
-		.hour		= 2,
-		.day		= 4,
-		.mon		= 5,
-		.year		= 6,
-	},
-	{
-		.type		= M41T00_TYPE_M41T81,
-		.name		= "m41t81",
-		.read_limit	= 1,
-		.sec		= 1,
-		.min		= 2,
-		.hour		= 3,
-		.day		= 5,
-		.mon		= 6,
-		.year		= 7,
-		.alarm_mon	= 0xa,
-		.alarm_hour	= 0xc,
-		.sqw		= 0x13,
-	},
-	{
-		.type		= M41T00_TYPE_M41T85,
-		.name		= "m41t85",
-		.read_limit	= 1,
-		.sec		= 1,
-		.min		= 2,
-		.hour		= 3,
-		.day		= 5,
-		.mon		= 6,
-		.year		= 7,
-		.alarm_mon	= 0xa,
-		.alarm_hour	= 0xc,
-		.sqw		= 0x13,
-	},
-};
-static struct m41t00_chip_info *m41t00_chip;
-
-ulong
-m41t00_get_rtc_time(void)
-{
-	s32 sec, min, hour, day, mon, year;
-	s32 sec1, min1, hour1, day1, mon1, year1;
-	u8 reads = 0;
-	u8 buf[8], msgbuf[1] = { 0 }; /* offset into rtc's regs */
-	struct i2c_msg msgs[] = {
-		{
-			.addr	= save_client->addr,
-			.flags	= 0,
-			.len	= 1,
-			.buf	= msgbuf,
-		},
-		{
-			.addr	= save_client->addr,
-			.flags	= I2C_M_RD,
-			.len	= 8,
-			.buf	= buf,
-		},
-	};
-
-	sec = min = hour = day = mon = year = 0;
-
-	do {
-		if (i2c_transfer(save_client->adapter, msgs, 2) < 0)
-			goto read_err;
-
-		sec1 = sec;
-		min1 = min;
-		hour1 = hour;
-		day1 = day;
-		mon1 = mon;
-		year1 = year;
-
-		sec = buf[m41t00_chip->sec] & 0x7f;
-		min = buf[m41t00_chip->min] & 0x7f;
-		hour = buf[m41t00_chip->hour] & 0x3f;
-		day = buf[m41t00_chip->day] & 0x3f;
-		mon = buf[m41t00_chip->mon] & 0x1f;
-		year = buf[m41t00_chip->year];
-	} while ((++reads < m41t00_chip->read_limit) && ((sec != sec1)
-			|| (min != min1) || (hour != hour1) || (day != day1)
-			|| (mon != mon1) || (year != year1)));
-
-	if ((m41t00_chip->read_limit > 1) && ((sec != sec1) || (min != min1)
-			|| (hour != hour1) || (day != day1) || (mon != mon1)
-			|| (year != year1)))
-		goto read_err;
-
-	sec = BCD2BIN(sec);
-	min = BCD2BIN(min);
-	hour = BCD2BIN(hour);
-	day = BCD2BIN(day);
-	mon = BCD2BIN(mon);
-	year = BCD2BIN(year);
-
-	year += 1900;
-	if (year < 1970)
-		year += 100;
-
-	return mktime(year, mon, day, hour, min, sec);
-
-read_err:
-	dev_err(&save_client->dev, "m41t00_get_rtc_time: Read error\n");
-	return 0;
-}
-EXPORT_SYMBOL_GPL(m41t00_get_rtc_time);
-
-static void
-m41t00_set(void *arg)
-{
-	struct rtc_time	tm;
-	int nowtime = *(int *)arg;
-	s32 sec, min, hour, day, mon, year;
-	u8 wbuf[9], *buf = &wbuf[1], msgbuf[1] = { 0 };
-	struct i2c_msg msgs[] = {
-		{
-			.addr	= save_client->addr,
-			.flags	= 0,
-			.len	= 1,
-			.buf	= msgbuf,
-		},
-		{
-			.addr	= save_client->addr,
-			.flags	= I2C_M_RD,
-			.len	= 8,
-			.buf	= buf,
-		},
-	};
-
-	to_tm(nowtime, &tm);
-	tm.tm_year = (tm.tm_year - 1900) % 100;
-
-	sec = BIN2BCD(tm.tm_sec);
-	min = BIN2BCD(tm.tm_min);
-	hour = BIN2BCD(tm.tm_hour);
-	day = BIN2BCD(tm.tm_mday);
-	mon = BIN2BCD(tm.tm_mon);
-	year = BIN2BCD(tm.tm_year);
-
-	/* Read reg values into buf[0..7]/wbuf[1..8] */
-	if (i2c_transfer(save_client->adapter, msgs, 2) < 0) {
-		dev_err(&save_client->dev, "m41t00_set: Read error\n");
-		return;
-	}
-
-	wbuf[0] = 0; /* offset into rtc's regs */
-	buf[m41t00_chip->sec] = (buf[m41t00_chip->sec] & ~0x7f) | (sec & 0x7f);
-	buf[m41t00_chip->min] = (buf[m41t00_chip->min] & ~0x7f) | (min & 0x7f);
-	buf[m41t00_chip->hour] = (buf[m41t00_chip->hour] & ~0x3f) | (hour& 0x3f);
-	buf[m41t00_chip->day] = (buf[m41t00_chip->day] & ~0x3f) | (day & 0x3f);
-	buf[m41t00_chip->mon] = (buf[m41t00_chip->mon] & ~0x1f) | (mon & 0x1f);
-	buf[m41t00_chip->year] = year;
-
-	if (i2c_master_send(save_client, wbuf, 9) < 0)
-		dev_err(&save_client->dev, "m41t00_set: Write error\n");
-}
-
-static ulong new_time;
-/* well, isn't this API just _lovely_? */
-static void
-m41t00_barf(struct work_struct *unusable)
-{
-	m41t00_set(&new_time);
-}
-
-static struct workqueue_struct *m41t00_wq;
-static DECLARE_WORK(m41t00_work, m41t00_barf);
-
-int
-m41t00_set_rtc_time(ulong nowtime)
-{
-	new_time = nowtime;
-
-	if (in_interrupt())
-		queue_work(m41t00_wq, &m41t00_work);
-	else
-		m41t00_set(&new_time);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(m41t00_set_rtc_time);
-
-/*
- *****************************************************************************
- *
- *	platform_data Driver Interface
- *
- *****************************************************************************
- */
-static int __init
-m41t00_platform_probe(struct platform_device *pdev)
-{
-	struct m41t00_platform_data *pdata;
-	int i;
-
-	if (pdev && (pdata = pdev->dev.platform_data)) {
-		normal_addr[0] = pdata->i2c_addr;
-
-		for (i=0; i<ARRAY_SIZE(m41t00_chip_info_tbl); i++)
-			if (m41t00_chip_info_tbl[i].type == pdata->type) {
-				m41t00_chip = &m41t00_chip_info_tbl[i];
-				m41t00_chip->sqw_freq = pdata->sqw_freq;
-				return 0;
-			}
-	}
-	return -ENODEV;
-}
-
-static int __exit
-m41t00_platform_remove(struct platform_device *pdev)
-{
-	return 0;
-}
-
-static struct platform_driver m41t00_platform_driver = {
-	.probe  = m41t00_platform_probe,
-	.remove = m41t00_platform_remove,
-	.driver = {
-		.owner = THIS_MODULE,
-		.name  = M41T00_DRV_NAME,
-	},
-};
-
-/*
- *****************************************************************************
- *
- *	Driver Interface
- *
- *****************************************************************************
- */
-static int
-m41t00_probe(struct i2c_adapter *adap, int addr, int kind)
-{
-	struct i2c_client *client;
-	int rc;
-
-	if (!i2c_check_functionality(adap, I2C_FUNC_I2C
-			| I2C_FUNC_SMBUS_BYTE_DATA))
-		return 0;
-
-	client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-	if (!client)
-		return -ENOMEM;
-
-	strlcpy(client->name, m41t00_chip->name, I2C_NAME_SIZE);
-	client->addr = addr;
-	client->adapter = adap;
-	client->driver = &m41t00_driver;
-
-	if ((rc = i2c_attach_client(client)))
-		goto attach_err;
-
-	if (m41t00_chip->type != M41T00_TYPE_M41T00) {
-		/* If asked, disable SQW, set SQW frequency & re-enable */
-		if (m41t00_chip->sqw_freq)
-			if (((rc = i2c_smbus_read_byte_data(client,
-					m41t00_chip->alarm_mon)) < 0)
-			 || ((rc = i2c_smbus_write_byte_data(client,
-					m41t00_chip->alarm_mon, rc & ~0x40)) <0)
-			 || ((rc = i2c_smbus_write_byte_data(client,
-					m41t00_chip->sqw,
-					m41t00_chip->sqw_freq)) < 0)
-			 || ((rc = i2c_smbus_write_byte_data(client,
-					m41t00_chip->alarm_mon, rc | 0x40)) <0))
-				goto sqw_err;
-
-		/* Make sure HT (Halt Update) bit is cleared */
-		if ((rc = i2c_smbus_read_byte_data(client,
-				m41t00_chip->alarm_hour)) < 0)
-			goto ht_err;
-
-		if (rc & 0x40)
-			if ((rc = i2c_smbus_write_byte_data(client,
-					m41t00_chip->alarm_hour, rc & ~0x40))<0)
-				goto ht_err;
-	}
-
-	/* Make sure ST (stop) bit is cleared */
-	if ((rc = i2c_smbus_read_byte_data(client, m41t00_chip->sec)) < 0)
-		goto st_err;
-
-	if (rc & 0x80)
-		if ((rc = i2c_smbus_write_byte_data(client, m41t00_chip->sec,
-				rc & ~0x80)) < 0)
-			goto st_err;
-
-	m41t00_wq = create_singlethread_workqueue(m41t00_chip->name);
-	save_client = client;
-	return 0;
-
-st_err:
-	dev_err(&client->dev, "m41t00_probe: Can't clear ST bit\n");
-	goto attach_err;
-ht_err:
-	dev_err(&client->dev, "m41t00_probe: Can't clear HT bit\n");
-	goto attach_err;
-sqw_err:
-	dev_err(&client->dev, "m41t00_probe: Can't set SQW Frequency\n");
-attach_err:
-	kfree(client);
-	return rc;
-}
-
-static int
-m41t00_attach(struct i2c_adapter *adap)
-{
-	return i2c_probe(adap, &addr_data, m41t00_probe);
-}
-
-static int
-m41t00_detach(struct i2c_client *client)
-{
-	int rc;
-
-	if ((rc = i2c_detach_client(client)) == 0) {
-		kfree(client);
-		destroy_workqueue(m41t00_wq);
-	}
-	return rc;
-}
-
-static struct i2c_driver m41t00_driver = {
-	.driver = {
-		.name	= M41T00_DRV_NAME,
-	},
-	.id		= I2C_DRIVERID_STM41T00,
-	.attach_adapter	= m41t00_attach,
-	.detach_client	= m41t00_detach,
-};
-
-static int __init
-m41t00_init(void)
-{
-	int rc;
-
-	if (!(rc = platform_driver_register(&m41t00_platform_driver)))
-		rc = i2c_add_driver(&m41t00_driver);
-	return rc;
-}
-
-static void __exit
-m41t00_exit(void)
-{
-	i2c_del_driver(&m41t00_driver);
-	platform_driver_unregister(&m41t00_platform_driver);
-}
-
-module_init(m41t00_init);
-module_exit(m41t00_exit);
-
-MODULE_AUTHOR("Mark A. Greer <mgreer@mvista.com>");
-MODULE_DESCRIPTION("ST Microelectronics M41T00 RTC I2C Client Driver");
-MODULE_LICENSE("GPL");
diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h
index c7a51a196f51..10c8edd7795c 100644
--- a/include/linux/i2c-id.h
+++ b/include/linux/i2c-id.h
@@ -83,7 +83,6 @@
 #define I2C_DRIVERID_SAA7114	49	/* video decoder		*/
 #define I2C_DRIVERID_ZR36120	50     /* Zoran 36120 video encoder	*/
 #define I2C_DRIVERID_24LC32A	51	/* Microchip 24LC32A 32k EEPROM	*/
-#define I2C_DRIVERID_STM41T00	52	/* real time clock		*/
 #define I2C_DRIVERID_UDA1342	53	/* UDA1342 audio codec		*/
 #define I2C_DRIVERID_ADV7170	54	/* video encoder		*/
 #define I2C_DRIVERID_MAX1617	56	/* temp sensor			*/
@@ -95,7 +94,6 @@
 #define I2C_DRIVERID_TDA7313	62	/* TDA7313 audio processor	*/
 #define I2C_DRIVERID_MAX6900	63	/* MAX6900 real-time clock	*/
 #define I2C_DRIVERID_SAA7114H	64	/* video decoder		*/
-#define I2C_DRIVERID_DS1374	65	/* DS1374 real time clock	*/
 #define I2C_DRIVERID_TDA9874	66	/* TV sound decoder		*/
 #define I2C_DRIVERID_SAA6752HS	67	/* MPEG2 encoder		*/
 #define I2C_DRIVERID_TVEEPROM	68	/* TV EEPROM			*/
diff --git a/include/linux/m41t00.h b/include/linux/m41t00.h
deleted file mode 100644
index b423360ca38e..000000000000
--- a/include/linux/m41t00.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Definitions for the ST M41T00 family of i2c rtc chips.
- *
- * Author: Mark A. Greer <mgreer@mvista.com>
- *
- * 2005, 2006 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-#ifndef _M41T00_H
-#define _M41T00_H
-
-#define	M41T00_DRV_NAME		"m41t00"
-#define	M41T00_I2C_ADDR		0x68
-
-#define	M41T00_TYPE_M41T00	0
-#define	M41T00_TYPE_M41T81	81
-#define	M41T00_TYPE_M41T85	85
-
-struct m41t00_platform_data {
-	u8	type;
-	u8	i2c_addr;
-	u8	sqw_freq;
-};
-
-/* SQW output disabled, this is default value by power on */
-#define M41T00_SQW_DISABLE	(0)
-
-#define M41T00_SQW_32KHZ	(1<<4)		/* 32.768 KHz */
-#define M41T00_SQW_8KHZ		(2<<4)		/* 8.192 KHz */
-#define M41T00_SQW_4KHZ		(3<<4)		/* 4.096 KHz */
-#define M41T00_SQW_2KHZ		(4<<4)		/* 2.048 KHz */
-#define M41T00_SQW_1KHZ		(5<<4)		/* 1.024 KHz */
-#define M41T00_SQW_512HZ	(6<<4)		/* 512 Hz */
-#define M41T00_SQW_256HZ	(7<<4)		/* 256 Hz */
-#define M41T00_SQW_128HZ	(8<<4)		/* 128 Hz */
-#define M41T00_SQW_64HZ		(9<<4)		/* 64 Hz */
-#define M41T00_SQW_32HZ		(10<<4)		/* 32 Hz */
-#define M41T00_SQW_16HZ		(11<<4)		/* 16 Hz */
-#define M41T00_SQW_8HZ		(12<<4)		/* 8 Hz */
-#define M41T00_SQW_4HZ		(13<<4)		/* 4 Hz */
-#define M41T00_SQW_2HZ		(14<<4)		/* 2 Hz */
-#define M41T00_SQW_1HZ		(15<<4)		/* 1 Hz */
-
-extern ulong m41t00_get_rtc_time(void);
-extern int m41t00_set_rtc_time(ulong nowtime);
-
-#endif /* _M41T00_H */
-- 
cgit v1.2.3-59-g8ed1b


From 5a4a2387717ec57ec2a9154beb281e09c19fc26e Mon Sep 17 00:00:00 2001
From: Michael-Luke Jones <mlj28@cam.ac.uk>
Date: Sun, 27 Jan 2008 18:14:46 +0100
Subject: ixp4xx-i2c-gpio

Migrate all ixp4xx devices to the bitbanging I2C bus driver utilizing
the arch-neutral GPIO API (linux/i2c-gpio.h).

Tested by the nslu2-linux and openwrt projects in public firmware releases.

Signed-off-by: Michael-Luke Jones <mlj28@cam.ac.uk>
Acked-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 arch/arm/mach-ixp4xx/avila-setup.c   | 14 +++++++-------
 arch/arm/mach-ixp4xx/dsmg600-setup.c | 13 ++++++++-----
 arch/arm/mach-ixp4xx/ixdp425-setup.c | 14 +++++++-------
 arch/arm/mach-ixp4xx/nas100d-setup.c | 14 ++++++++------
 arch/arm/mach-ixp4xx/nslu2-setup.c   | 14 ++++++++------
 5 files changed, 38 insertions(+), 31 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-ixp4xx/avila-setup.c b/arch/arm/mach-ixp4xx/avila-setup.c
index d59b8dc7dc7a..e38f45fa58ae 100644
--- a/arch/arm/mach-ixp4xx/avila-setup.c
+++ b/arch/arm/mach-ixp4xx/avila-setup.c
@@ -18,6 +18,7 @@
 #include <linux/tty.h>
 #include <linux/serial_8250.h>
 #include <linux/slab.h>
+#include <linux/i2c-gpio.h>
 
 #include <asm/types.h>
 #include <asm/setup.h>
@@ -47,18 +48,17 @@ static struct platform_device avila_flash = {
 	.resource	= &avila_flash_resource,
 };
 
-static struct ixp4xx_i2c_pins avila_i2c_gpio_pins = {
+static struct i2c_gpio_platform_data avila_i2c_gpio_data = {
 	.sda_pin	= AVILA_SDA_PIN,
 	.scl_pin	= AVILA_SCL_PIN,
 };
 
-static struct platform_device avila_i2c_controller = {
-	.name		= "IXP4XX-I2C",
+static struct platform_device avila_i2c_gpio = {
+	.name		= "i2c-gpio",
 	.id		= 0,
-	.dev		= {
-		.platform_data = &avila_i2c_gpio_pins,
+	.dev	 = {
+		.platform_data	= &avila_i2c_gpio_data,
 	},
-	.num_resources	= 0
 };
 
 static struct resource avila_uart_resources[] = {
@@ -133,7 +133,7 @@ static struct platform_device avila_pata = {
 };
 
 static struct platform_device *avila_devices[] __initdata = {
-	&avila_i2c_controller,
+	&avila_i2c_gpio,
 	&avila_flash,
 	&avila_uart
 };
diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c
index 1e75e105c4f7..c473d408aa7c 100644
--- a/arch/arm/mach-ixp4xx/dsmg600-setup.c
+++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c
@@ -14,6 +14,7 @@
 #include <linux/kernel.h>
 #include <linux/serial.h>
 #include <linux/serial_8250.h>
+#include <linux/i2c-gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -37,15 +38,17 @@ static struct platform_device dsmg600_flash = {
 	.resource		= &dsmg600_flash_resource,
 };
 
-static struct ixp4xx_i2c_pins dsmg600_i2c_gpio_pins = {
+static struct i2c_gpio_platform_data dsmg600_i2c_gpio_data = {
 	.sda_pin		= DSMG600_SDA_PIN,
 	.scl_pin		= DSMG600_SCL_PIN,
 };
 
-static struct platform_device dsmg600_i2c_controller = {
-	.name			= "IXP4XX-I2C",
+static struct platform_device dsmg600_i2c_gpio = {
+	.name			= "i2c-gpio",
 	.id			= 0,
-	.dev.platform_data	= &dsmg600_i2c_gpio_pins,
+	.dev	 = {
+		.platform_data	= &dsmg600_i2c_gpio_data,
+	},
 };
 
 #ifdef CONFIG_LEDS_CLASS
@@ -116,7 +119,7 @@ static struct platform_device dsmg600_uart = {
 };
 
 static struct platform_device *dsmg600_devices[] __initdata = {
-	&dsmg600_i2c_controller,
+	&dsmg600_i2c_gpio,
 	&dsmg600_flash,
 };
 
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index d5008d8fc9a5..e89070da28bf 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -15,6 +15,7 @@
 #include <linux/tty.h>
 #include <linux/serial_8250.h>
 #include <linux/slab.h>
+#include <linux/i2c-gpio.h>
 #include <linux/io.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
@@ -120,18 +121,17 @@ static struct platform_device ixdp425_flash_nand = {
 };
 #endif	/* CONFIG_MTD_NAND_PLATFORM */
 
-static struct ixp4xx_i2c_pins ixdp425_i2c_gpio_pins = {
+static struct i2c_gpio_platform_data ixdp425_i2c_gpio_data = {
 	.sda_pin	= IXDP425_SDA_PIN,
 	.scl_pin	= IXDP425_SCL_PIN,
 };
 
-static struct platform_device ixdp425_i2c_controller = {
-	.name		= "IXP4XX-I2C",
+static struct platform_device ixdp425_i2c_gpio = {
+	.name		= "i2c-gpio",
 	.id		= 0,
-	.dev		= {
-		.platform_data = &ixdp425_i2c_gpio_pins,
+	.dev	 = {
+		.platform_data	= &ixdp425_i2c_gpio_data,
 	},
-	.num_resources	= 0
 };
 
 static struct resource ixdp425_uart_resources[] = {
@@ -178,7 +178,7 @@ static struct platform_device ixdp425_uart = {
 };
 
 static struct platform_device *ixdp425_devices[] __initdata = {
-	&ixdp425_i2c_controller,
+	&ixdp425_i2c_gpio,
 	&ixdp425_flash,
 #if defined(CONFIG_MTD_NAND_PLATFORM) || \
     defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index 78a17413ceca..54d884fb2517 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -16,6 +16,7 @@
 #include <linux/serial.h>
 #include <linux/serial_8250.h>
 #include <linux/leds.h>
+#include <linux/i2c-gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -68,16 +69,17 @@ static struct platform_device nas100d_leds = {
 };
 #endif
 
-static struct ixp4xx_i2c_pins nas100d_i2c_gpio_pins = {
+static struct i2c_gpio_platform_data nas100d_i2c_gpio_data = {
 	.sda_pin		= NAS100D_SDA_PIN,
 	.scl_pin		= NAS100D_SCL_PIN,
 };
 
-static struct platform_device nas100d_i2c_controller = {
-	.name			= "IXP4XX-I2C",
+static struct platform_device nas100d_i2c_gpio = {
+	.name			= "i2c-gpio",
 	.id			= 0,
-	.dev.platform_data	= &nas100d_i2c_gpio_pins,
-	.num_resources		= 0,
+	.dev	 = {
+		.platform_data	= &nas100d_i2c_gpio_data,
+	},
 };
 
 static struct resource nas100d_uart_resources[] = {
@@ -124,7 +126,7 @@ static struct platform_device nas100d_uart = {
 };
 
 static struct platform_device *nas100d_devices[] __initdata = {
-	&nas100d_i2c_controller,
+	&nas100d_i2c_gpio,
 	&nas100d_flash,
 #ifdef CONFIG_LEDS_IXP4XX
 	&nas100d_leds,
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index 9bf8ccbcaccf..77277d27fcc5 100644
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c
+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
@@ -18,6 +18,7 @@
 #include <linux/serial.h>
 #include <linux/serial_8250.h>
 #include <linux/leds.h>
+#include <linux/i2c-gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -41,7 +42,7 @@ static struct platform_device nslu2_flash = {
 	.resource		= &nslu2_flash_resource,
 };
 
-static struct ixp4xx_i2c_pins nslu2_i2c_gpio_pins = {
+static struct i2c_gpio_platform_data nslu2_i2c_gpio_data = {
 	.sda_pin		= NSLU2_SDA_PIN,
 	.scl_pin		= NSLU2_SCL_PIN,
 };
@@ -82,11 +83,12 @@ static struct platform_device nslu2_leds = {
 };
 #endif
 
-static struct platform_device nslu2_i2c_controller = {
-	.name			= "IXP4XX-I2C",
+static struct platform_device nslu2_i2c_gpio = {
+	.name			= "i2c-gpio",
 	.id			= 0,
-	.dev.platform_data	= &nslu2_i2c_gpio_pins,
-	.num_resources		= 0,
+	.dev	 = {
+		.platform_data	= &nslu2_i2c_gpio_data,
+	},
 };
 
 static struct platform_device nslu2_beeper = {
@@ -139,7 +141,7 @@ static struct platform_device nslu2_uart = {
 };
 
 static struct platform_device *nslu2_devices[] __initdata = {
-	&nslu2_i2c_controller,
+	&nslu2_i2c_gpio,
 	&nslu2_flash,
 	&nslu2_beeper,
 #ifdef CONFIG_LEDS_IXP4XX
-- 
cgit v1.2.3-59-g8ed1b


From 2cdddeb8d7dd42dc1847b110228a626d25a1e468 Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Sun, 27 Jan 2008 18:14:47 +0100
Subject: i2c: normal_i2c can be made const (remaining drivers)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 Documentation/i2c/writing-clients     | 6 +++---
 arch/arm/mach-pxa/akita-ioexp.c       | 2 +-
 drivers/i2c/chips/eeprom.c            | 2 +-
 drivers/i2c/chips/max6875.c           | 2 +-
 drivers/i2c/chips/pcf8574.c           | 8 +++++---
 drivers/i2c/chips/pcf8575.c           | 2 +-
 drivers/i2c/chips/pcf8591.c           | 2 +-
 drivers/macintosh/therm_windtunnel.c  | 2 +-
 drivers/usb/host/ohci-pnx4008.c       | 4 ++--
 drivers/video/matrox/matroxfb_maven.c | 2 +-
 drivers/w1/masters/ds2482.c           | 2 +-
 sound/soc/codecs/cs4270.c             | 2 +-
 sound/soc/s3c24xx/neo1973_wm8753.c    | 2 +-
 13 files changed, 20 insertions(+), 18 deletions(-)

(limited to 'arch')

diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients
index 2c170032bf37..bfb0a5520817 100644
--- a/Documentation/i2c/writing-clients
+++ b/Documentation/i2c/writing-clients
@@ -267,9 +267,9 @@ insmod parameter of the form force_<kind>.
 Fortunately, as a module writer, you just have to define the `normal_i2c' 
 parameter. The complete declaration could look like this:
 
-  /* Scan 0x37, and 0x48 to 0x4f */
-  static unsigned short normal_i2c[] = { 0x37, 0x48, 0x49, 0x4a, 0x4b, 0x4c,
-                                         0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
+  /* Scan 0x4c to 0x4f */
+  static const unsigned short normal_i2c[] = { 0x4c, 0x4d, 0x4e, 0x4f,
+                                               I2C_CLIENT_END };
 
   /* Magic definition of all other variables and things */
   I2C_CLIENT_INSMOD;
diff --git a/arch/arm/mach-pxa/akita-ioexp.c b/arch/arm/mach-pxa/akita-ioexp.c
index 12d2fe0ceff6..254892ac30cd 100644
--- a/arch/arm/mach-pxa/akita-ioexp.c
+++ b/arch/arm/mach-pxa/akita-ioexp.c
@@ -29,7 +29,7 @@
 #define MAX7310_TIMEOUT  0x04
 
 /* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x18, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x18, I2C_CLIENT_END };
 
 /* I2C Magic */
 I2C_CLIENT_INSMOD;
diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c
index 1a7eeebac506..fde297b21ad7 100644
--- a/drivers/i2c/chips/eeprom.c
+++ b/drivers/i2c/chips/eeprom.c
@@ -35,7 +35,7 @@
 #include <linux/mutex.h>
 
 /* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x50, 0x51, 0x52, 0x53, 0x54,
+static const unsigned short normal_i2c[] = { 0x50, 0x51, 0x52, 0x53, 0x54,
 					0x55, 0x56, 0x57, I2C_CLIENT_END };
 
 /* Insmod parameters */
diff --git a/drivers/i2c/chips/max6875.c b/drivers/i2c/chips/max6875.c
index 64692f666372..fb7ea5637eca 100644
--- a/drivers/i2c/chips/max6875.c
+++ b/drivers/i2c/chips/max6875.c
@@ -34,7 +34,7 @@
 #include <linux/mutex.h>
 
 /* Do not scan - the MAX6875 access method will write to some EEPROM chips */
-static unsigned short normal_i2c[] = {I2C_CLIENT_END};
+static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD_1(max6875);
diff --git a/drivers/i2c/chips/pcf8574.c b/drivers/i2c/chips/pcf8574.c
index 21c6dd69193c..b3b830ccf209 100644
--- a/drivers/i2c/chips/pcf8574.c
+++ b/drivers/i2c/chips/pcf8574.c
@@ -41,9 +41,11 @@
 #include <linux/i2c.h>
 
 /* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
-					0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
-					I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = {
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
+	I2C_CLIENT_END
+};
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD_2(pcf8574, pcf8574a);
diff --git a/drivers/i2c/chips/pcf8575.c b/drivers/i2c/chips/pcf8575.c
index db3c87726978..3ea08ac0bfa3 100644
--- a/drivers/i2c/chips/pcf8575.c
+++ b/drivers/i2c/chips/pcf8575.c
@@ -33,7 +33,7 @@
 #include <linux/sysfs.h> /* sysfs_create_group() */
 
 /* Addresses to scan */
-static unsigned short normal_i2c[] = {
+static const unsigned short normal_i2c[] = {
 	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
 	I2C_CLIENT_END
 };
diff --git a/drivers/i2c/chips/pcf8591.c b/drivers/i2c/chips/pcf8591.c
index 4dc36376eb32..865f4409c06b 100644
--- a/drivers/i2c/chips/pcf8591.c
+++ b/drivers/i2c/chips/pcf8591.c
@@ -27,7 +27,7 @@
 #include <linux/mutex.h>
 
 /* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
+static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
 					0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
 
 /* Insmod parameters */
diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c
index 5452da1bb1a5..7c57e7a4e00f 100644
--- a/drivers/macintosh/therm_windtunnel.c
+++ b/drivers/macintosh/therm_windtunnel.c
@@ -52,7 +52,7 @@
 static int 			do_probe( struct i2c_adapter *adapter, int addr, int kind);
 
 /* scan 0x48-0x4f (DS1775) and 0x2c-2x2f (ADM1030) */
-static unsigned short		normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
+static const unsigned short	normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
 						 0x4c, 0x4d, 0x4e, 0x4f,
 						 0x2c, 0x2d, 0x2e, 0x2f,
 						 I2C_CLIENT_END };
diff --git a/drivers/usb/host/ohci-pnx4008.c b/drivers/usb/host/ohci-pnx4008.c
index ca2a6abbc117..642733d091fa 100644
--- a/drivers/usb/host/ohci-pnx4008.c
+++ b/drivers/usb/host/ohci-pnx4008.c
@@ -112,9 +112,9 @@ static int isp1301_detach(struct i2c_client *client);
 static int isp1301_command(struct i2c_client *client, unsigned int cmd,
 			   void *arg);
 
-static unsigned short normal_i2c[] =
+static const unsigned short normal_i2c[] =
     { ISP1301_I2C_ADDR, ISP1301_I2C_ADDR + 1, I2C_CLIENT_END };
-static unsigned short dummy_i2c_addrlist[] = { I2C_CLIENT_END };
+static const unsigned short dummy_i2c_addrlist[] = { I2C_CLIENT_END };
 
 static struct i2c_client_address_data addr_data = {
 	.normal_i2c = normal_i2c,
diff --git a/drivers/video/matrox/matroxfb_maven.c b/drivers/video/matrox/matroxfb_maven.c
index 49cd53e46c0a..0cd58f84fb46 100644
--- a/drivers/video/matrox/matroxfb_maven.c
+++ b/drivers/video/matrox/matroxfb_maven.c
@@ -1232,7 +1232,7 @@ static int maven_shutdown_client(struct i2c_client* clnt) {
 	return 0;
 }
 
-static unsigned short normal_i2c[] = { MAVEN_I2CID, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { MAVEN_I2CID, I2C_CLIENT_END };
 I2C_CLIENT_INSMOD;
 
 static struct i2c_driver maven_driver;
diff --git a/drivers/w1/masters/ds2482.c b/drivers/w1/masters/ds2482.c
index d93eb626b2f0..0fd5820d5c61 100644
--- a/drivers/w1/masters/ds2482.c
+++ b/drivers/w1/masters/ds2482.c
@@ -29,7 +29,7 @@
  * However, the chip cannot be detected without doing an i2c write,
  * so use the force module parameter.
  */
-static unsigned short normal_i2c[] = {I2C_CLIENT_END};
+static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
 
 /**
  * Insmod parameters
diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c
index abac62866da8..dab22cc97ead 100644
--- a/sound/soc/codecs/cs4270.c
+++ b/sound/soc/codecs/cs4270.c
@@ -234,7 +234,7 @@ static int cs4270_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
  * lower three bits are determined via the AD2, AD1, and AD0 pins
  * (respectively).
  */
-static unsigned short normal_i2c[] = {
+static const unsigned short normal_i2c[] = {
 	0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, I2C_CLIENT_END
 };
 I2C_CLIENT_INSMOD;
diff --git a/sound/soc/s3c24xx/neo1973_wm8753.c b/sound/soc/s3c24xx/neo1973_wm8753.c
index d5a8fc2cf8d6..f1f6b9478af9 100644
--- a/sound/soc/s3c24xx/neo1973_wm8753.c
+++ b/sound/soc/s3c24xx/neo1973_wm8753.c
@@ -573,7 +573,7 @@ static struct snd_soc_device neo1973_snd_devdata = {
 
 static struct i2c_client client_template;
 
-static unsigned short normal_i2c[] = { 0x7C, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x7C, I2C_CLIENT_END };
 
 /* Magic definition of all other variables and things */
 I2C_CLIENT_INSMOD;
-- 
cgit v1.2.3-59-g8ed1b


From 6d16bfb5e81d3925a7efb38b5cc3e0021b57d03a Mon Sep 17 00:00:00 2001
From: David Brownell <david-b@pacbell.net>
Date: Sun, 27 Jan 2008 18:14:49 +0100
Subject: i2c/tps65010: move header to <linux/i2c/...>

Move the tps65010 header file from the OMAP arch directory to the
more generic <linux/i2c/...> directory, and remove the spurious
dependency of this driver on OMAP.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 arch/arm/mach-omap1/board-h2.c       |   2 +-
 arch/arm/mach-omap1/board-h3.c       |   2 +-
 arch/arm/mach-omap1/board-osk.c      |   3 +-
 arch/arm/mach-omap1/leds-osk.c       |   2 +-
 drivers/i2c/chips/Kconfig            |   4 -
 drivers/i2c/chips/isp1301_omap.c     |   2 +-
 drivers/i2c/chips/tps65010.c         |   2 +-
 drivers/mmc/host/omap.c              |   2 +-
 drivers/usb/host/ohci-omap.c         |   2 +-
 drivers/video/omap/lcd_h3.c          |   2 +-
 include/asm-arm/arch-omap/tps65010.h | 156 -----------------------------------
 include/linux/i2c/tps65010.h         | 156 +++++++++++++++++++++++++++++++++++
 12 files changed, 166 insertions(+), 169 deletions(-)
 delete mode 100644 include/asm-arm/arch-omap/tps65010.h
 create mode 100644 include/linux/i2c/tps65010.h

(limited to 'arch')

diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
index 130681201c19..9393824cc150 100644
--- a/arch/arm/mach-omap1/board-h2.c
+++ b/arch/arm/mach-omap1/board-h2.c
@@ -27,6 +27,7 @@
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/input.h>
+#include <linux/i2c/tps65010.h>
 
 #include <asm/hardware.h>
 #include <asm/gpio.h>
@@ -36,7 +37,6 @@
 #include <asm/mach/flash.h>
 #include <asm/mach/map.h>
 
-#include <asm/arch/tps65010.h>
 #include <asm/arch/mux.h>
 #include <asm/arch/tc.h>
 #include <asm/arch/irda.h>
diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c
index 4f84ae273a1f..978cdab16535 100644
--- a/arch/arm/mach-omap1/board-h3.c
+++ b/arch/arm/mach-omap1/board-h3.c
@@ -26,6 +26,7 @@
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/input.h>
+#include <linux/i2c/tps65010.h>
 
 #include <asm/setup.h>
 #include <asm/page.h>
@@ -37,7 +38,6 @@
 #include <asm/mach/flash.h>
 #include <asm/mach/map.h>
 
-#include <asm/arch/tps65010.h>
 #include <asm/arch/gpioexpander.h>
 #include <asm/arch/irqs.h>
 #include <asm/arch/mux.h>
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index 5db182da322b..5b575e687a2a 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -37,6 +37,8 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 
+#include <linux/i2c/tps65010.h>
+
 #include <asm/hardware.h>
 #include <asm/gpio.h>
 
@@ -46,7 +48,6 @@
 #include <asm/mach/flash.h>
 
 #include <asm/arch/usb.h>
-#include <asm/arch/tps65010.h>
 #include <asm/arch/mux.h>
 #include <asm/arch/tc.h>
 #include <asm/arch/common.h>
diff --git a/arch/arm/mach-omap1/leds-osk.c b/arch/arm/mach-omap1/leds-osk.c
index 86de303ecab2..6939d5e7569a 100644
--- a/arch/arm/mach-omap1/leds-osk.c
+++ b/arch/arm/mach-omap1/leds-osk.c
@@ -5,13 +5,13 @@
  */
 #include <linux/init.h>
 #include <linux/workqueue.h>
+#include <linux/i2c/tps65010.h>
 
 #include <asm/hardware.h>
 #include <asm/leds.h>
 #include <asm/system.h>
 
 #include <asm/arch/gpio.h>
-#include <asm/arch/tps65010.h>
 
 #include "leds.h"
 
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index fe3008e59467..bd7082c2443d 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -88,12 +88,8 @@ config ISP1301_OMAP
 	  This driver can also be built as a module.  If so, the module
 	  will be called isp1301_omap.
 
-# NOTE:  This isn't really OMAP-specific, except for the current
-# interface location in  <include/asm-arm/arch-omap/tps65010.h>
-# and having mostly OMAP-specific board support
 config TPS65010
 	tristate "TPS6501x Power Management chips"
-	depends on ARCH_OMAP
 	default y if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_OSK
 	help
 	  If you say yes here you get support for the TPS6501x series of
diff --git a/drivers/i2c/chips/isp1301_omap.c b/drivers/i2c/chips/isp1301_omap.c
index ebfbb2947ae6..2a3160153f54 100644
--- a/drivers/i2c/chips/isp1301_omap.c
+++ b/drivers/i2c/chips/isp1301_omap.c
@@ -100,7 +100,7 @@ struct isp1301 {
 
 #if	defined(CONFIG_TPS65010) || defined(CONFIG_TPS65010_MODULE)
 
-#include <asm/arch/tps65010.h>
+#include <linux/i2c/tps65010.h>
 
 #else
 
diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c
index e320994b981c..4154a9108859 100644
--- a/drivers/i2c/chips/tps65010.c
+++ b/drivers/i2c/chips/tps65010.c
@@ -31,7 +31,7 @@
 #include <linux/seq_file.h>
 #include <linux/mutex.h>
 
-#include <asm/arch/tps65010.h>
+#include <linux/i2c/tps65010.h>
 
 /*-------------------------------------------------------------------------*/
 
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 971e18b91f4a..c9dfeb15b487 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -25,6 +25,7 @@
 #include <linux/mmc/card.h>
 #include <linux/clk.h>
 #include <linux/scatterlist.h>
+#include <linux/i2c/tps65010.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -35,7 +36,6 @@
 #include <asm/arch/dma.h>
 #include <asm/arch/mux.h>
 #include <asm/arch/fpga.h>
-#include <asm/arch/tps65010.h>
 
 #define	OMAP_MMC_REG_CMD	0x00
 #define	OMAP_MMC_REG_ARGL	0x04
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index 5cfa3d1c4413..74e1f4be10bb 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -47,7 +47,7 @@
 #endif
 
 #ifdef CONFIG_TPS65010
-#include <asm/arch/tps65010.h>
+#include <linux/i2c/tps65010.h>
 #else
 
 #define LOW	0
diff --git a/drivers/video/omap/lcd_h3.c b/drivers/video/omap/lcd_h3.c
index c604d935c188..31e978349a80 100644
--- a/drivers/video/omap/lcd_h3.c
+++ b/drivers/video/omap/lcd_h3.c
@@ -21,9 +21,9 @@
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/i2c/tps65010.h>
 
 #include <asm/arch/gpio.h>
-#include <asm/arch/tps65010.h>
 #include <asm/arch/omapfb.h>
 
 #define MODULE_NAME	"omapfb-lcd_h3"
diff --git a/include/asm-arm/arch-omap/tps65010.h b/include/asm-arm/arch-omap/tps65010.h
deleted file mode 100644
index b9aa2b3a3909..000000000000
--- a/include/asm-arm/arch-omap/tps65010.h
+++ /dev/null
@@ -1,156 +0,0 @@
-/* linux/include/asm-arm/arch-omap/tps65010.h
- *
- * Functions to access TPS65010 power management device.
- *
- * Copyright (C) 2004 Dirk Behme <dirk.behme@de.bosch.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the  GNU General Public License along
- * with this program; if not, write  to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __ASM_ARCH_TPS65010_H
-#define __ASM_ARCH_TPS65010_H
-
-/*
- * ----------------------------------------------------------------------------
- * Registers, all 8 bits
- * ----------------------------------------------------------------------------
- */
-
-#define	TPS_CHGSTATUS		0x01
-#	define	TPS_CHG_USB		(1 << 7)
-#	define	TPS_CHG_AC		(1 << 6)
-#	define	TPS_CHG_THERM		(1 << 5)
-#	define	TPS_CHG_TERM		(1 << 4)
-#	define	TPS_CHG_TAPER_TMO	(1 << 3)
-#	define	TPS_CHG_CHG_TMO		(1 << 2)
-#	define	TPS_CHG_PRECHG_TMO	(1 << 1)
-#	define	TPS_CHG_TEMP_ERR	(1 << 0)
-#define	TPS_REGSTATUS		0x02
-#	define	TPS_REG_ONOFF		(1 << 7)
-#	define	TPS_REG_COVER		(1 << 6)
-#	define	TPS_REG_UVLO		(1 << 5)
-#	define	TPS_REG_NO_CHG		(1 << 4)	/* tps65013 */
-#	define	TPS_REG_PG_LD02		(1 << 3)
-#	define	TPS_REG_PG_LD01		(1 << 2)
-#	define	TPS_REG_PG_MAIN		(1 << 1)
-#	define	TPS_REG_PG_CORE		(1 << 0)
-#define	TPS_MASK1		0x03
-#define	TPS_MASK2		0x04
-#define	TPS_ACKINT1		0x05
-#define	TPS_ACKINT2		0x06
-#define	TPS_CHGCONFIG		0x07
-#	define	TPS_CHARGE_POR		(1 << 7)	/* 65010/65012 */
-#	define	TPS65013_AUA		(1 << 7)	/* 65011/65013 */
-#	define	TPS_CHARGE_RESET	(1 << 6)
-#	define	TPS_CHARGE_FAST		(1 << 5)
-#	define	TPS_CHARGE_CURRENT	(3 << 3)
-#	define	TPS_VBUS_500MA		(1 << 2)
-#	define	TPS_VBUS_CHARGING	(1 << 1)
-#	define	TPS_CHARGE_ENABLE	(1 << 0)
-#define	TPS_LED1_ON		0x08
-#define	TPS_LED1_PER		0x09
-#define	TPS_LED2_ON		0x0a
-#define	TPS_LED2_PER		0x0b
-#define	TPS_VDCDC1		0x0c
-#	define	TPS_ENABLE_LP		(1 << 3)
-#define	TPS_VDCDC2		0x0d
-#define	TPS_VREGS1		0x0e
-#	define	TPS_LDO2_ENABLE	(1 << 7)
-#	define	TPS_LDO2_OFF	(1 << 6)
-#	define	TPS_VLDO2_3_0V	(3 << 4)
-#	define	TPS_VLDO2_2_75V	(2 << 4)
-#	define	TPS_VLDO2_2_5V	(1 << 4)
-#	define	TPS_VLDO2_1_8V	(0 << 4)
-#	define	TPS_LDO1_ENABLE	(1 << 3)
-#	define	TPS_LDO1_OFF	(1 << 2)
-#	define	TPS_VLDO1_3_0V	(3 << 0)
-#	define	TPS_VLDO1_2_75V	(2 << 0)
-#	define	TPS_VLDO1_2_5V	(1 << 0)
-#	define	TPS_VLDO1_ADJ	(0 << 0)
-#define	TPS_MASK3		0x0f
-#define	TPS_DEFGPIO		0x10
-
-/*
- * ----------------------------------------------------------------------------
- * Macros used by exported functions
- * ----------------------------------------------------------------------------
- */
-
-#define LED1  1
-#define LED2  2
-#define OFF   0
-#define ON    1
-#define BLINK 2
-#define GPIO1 1
-#define GPIO2 2
-#define GPIO3 3
-#define GPIO4 4
-#define LOW   0
-#define HIGH  1
-
-/*
- * ----------------------------------------------------------------------------
- * Exported functions
- * ----------------------------------------------------------------------------
- */
-
-/* Draw from VBUS:
- *   0 mA -- DON'T DRAW (might supply power instead)
- * 100 mA -- usb unit load (slowest charge rate)
- * 500 mA -- usb high power (fast battery charge)
- */
-extern int tps65010_set_vbus_draw(unsigned mA);
-
-/* tps65010_set_gpio_out_value parameter:
- * gpio:  GPIO1, GPIO2, GPIO3 or GPIO4
- * value: LOW or HIGH
- */
-extern int tps65010_set_gpio_out_value(unsigned gpio, unsigned value);
-
-/* tps65010_set_led parameter:
- * led:  LED1 or LED2
- * mode: ON, OFF or BLINK
- */
-extern int tps65010_set_led(unsigned led, unsigned mode);
-
-/* tps65010_set_vib parameter:
- * value: ON or OFF
- */
-extern int tps65010_set_vib(unsigned value);
-
-/* tps65010_set_low_pwr parameter:
- * mode: ON or OFF
- */
-extern int tps65010_set_low_pwr(unsigned mode);
-
-/* tps65010_config_vregs1 parameter:
- * value to be written to VREGS1 register
- * Note: The complete register is written, set all bits you need
- */
-extern int tps65010_config_vregs1(unsigned value);
-
-/* tps65013_set_low_pwr parameter:
- * mode: ON or OFF
- */
-extern int tps65013_set_low_pwr(unsigned mode);
-
-#endif /*  __ASM_ARCH_TPS65010_H */
-
diff --git a/include/linux/i2c/tps65010.h b/include/linux/i2c/tps65010.h
new file mode 100644
index 000000000000..7021635ed6a0
--- /dev/null
+++ b/include/linux/i2c/tps65010.h
@@ -0,0 +1,156 @@
+/* linux/i2c/tps65010.h
+ *
+ * Functions to access TPS65010 power management device.
+ *
+ * Copyright (C) 2004 Dirk Behme <dirk.behme@de.bosch.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the  GNU General Public License along
+ * with this program; if not, write  to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __LINUX_I2C_TPS65010_H
+#define __LINUX_I2C_TPS65010_H
+
+/*
+ * ----------------------------------------------------------------------------
+ * Registers, all 8 bits
+ * ----------------------------------------------------------------------------
+ */
+
+#define	TPS_CHGSTATUS		0x01
+#	define	TPS_CHG_USB		(1 << 7)
+#	define	TPS_CHG_AC		(1 << 6)
+#	define	TPS_CHG_THERM		(1 << 5)
+#	define	TPS_CHG_TERM		(1 << 4)
+#	define	TPS_CHG_TAPER_TMO	(1 << 3)
+#	define	TPS_CHG_CHG_TMO		(1 << 2)
+#	define	TPS_CHG_PRECHG_TMO	(1 << 1)
+#	define	TPS_CHG_TEMP_ERR	(1 << 0)
+#define	TPS_REGSTATUS		0x02
+#	define	TPS_REG_ONOFF		(1 << 7)
+#	define	TPS_REG_COVER		(1 << 6)
+#	define	TPS_REG_UVLO		(1 << 5)
+#	define	TPS_REG_NO_CHG		(1 << 4)	/* tps65013 */
+#	define	TPS_REG_PG_LD02		(1 << 3)
+#	define	TPS_REG_PG_LD01		(1 << 2)
+#	define	TPS_REG_PG_MAIN		(1 << 1)
+#	define	TPS_REG_PG_CORE		(1 << 0)
+#define	TPS_MASK1		0x03
+#define	TPS_MASK2		0x04
+#define	TPS_ACKINT1		0x05
+#define	TPS_ACKINT2		0x06
+#define	TPS_CHGCONFIG		0x07
+#	define	TPS_CHARGE_POR		(1 << 7)	/* 65010/65012 */
+#	define	TPS65013_AUA		(1 << 7)	/* 65011/65013 */
+#	define	TPS_CHARGE_RESET	(1 << 6)
+#	define	TPS_CHARGE_FAST		(1 << 5)
+#	define	TPS_CHARGE_CURRENT	(3 << 3)
+#	define	TPS_VBUS_500MA		(1 << 2)
+#	define	TPS_VBUS_CHARGING	(1 << 1)
+#	define	TPS_CHARGE_ENABLE	(1 << 0)
+#define	TPS_LED1_ON		0x08
+#define	TPS_LED1_PER		0x09
+#define	TPS_LED2_ON		0x0a
+#define	TPS_LED2_PER		0x0b
+#define	TPS_VDCDC1		0x0c
+#	define	TPS_ENABLE_LP		(1 << 3)
+#define	TPS_VDCDC2		0x0d
+#define	TPS_VREGS1		0x0e
+#	define	TPS_LDO2_ENABLE	(1 << 7)
+#	define	TPS_LDO2_OFF	(1 << 6)
+#	define	TPS_VLDO2_3_0V	(3 << 4)
+#	define	TPS_VLDO2_2_75V	(2 << 4)
+#	define	TPS_VLDO2_2_5V	(1 << 4)
+#	define	TPS_VLDO2_1_8V	(0 << 4)
+#	define	TPS_LDO1_ENABLE	(1 << 3)
+#	define	TPS_LDO1_OFF	(1 << 2)
+#	define	TPS_VLDO1_3_0V	(3 << 0)
+#	define	TPS_VLDO1_2_75V	(2 << 0)
+#	define	TPS_VLDO1_2_5V	(1 << 0)
+#	define	TPS_VLDO1_ADJ	(0 << 0)
+#define	TPS_MASK3		0x0f
+#define	TPS_DEFGPIO		0x10
+
+/*
+ * ----------------------------------------------------------------------------
+ * Macros used by exported functions
+ * ----------------------------------------------------------------------------
+ */
+
+#define LED1  1
+#define LED2  2
+#define OFF   0
+#define ON    1
+#define BLINK 2
+#define GPIO1 1
+#define GPIO2 2
+#define GPIO3 3
+#define GPIO4 4
+#define LOW   0
+#define HIGH  1
+
+/*
+ * ----------------------------------------------------------------------------
+ * Exported functions
+ * ----------------------------------------------------------------------------
+ */
+
+/* Draw from VBUS:
+ *   0 mA -- DON'T DRAW (might supply power instead)
+ * 100 mA -- usb unit load (slowest charge rate)
+ * 500 mA -- usb high power (fast battery charge)
+ */
+extern int tps65010_set_vbus_draw(unsigned mA);
+
+/* tps65010_set_gpio_out_value parameter:
+ * gpio:  GPIO1, GPIO2, GPIO3 or GPIO4
+ * value: LOW or HIGH
+ */
+extern int tps65010_set_gpio_out_value(unsigned gpio, unsigned value);
+
+/* tps65010_set_led parameter:
+ * led:  LED1 or LED2
+ * mode: ON, OFF or BLINK
+ */
+extern int tps65010_set_led(unsigned led, unsigned mode);
+
+/* tps65010_set_vib parameter:
+ * value: ON or OFF
+ */
+extern int tps65010_set_vib(unsigned value);
+
+/* tps65010_set_low_pwr parameter:
+ * mode: ON or OFF
+ */
+extern int tps65010_set_low_pwr(unsigned mode);
+
+/* tps65010_config_vregs1 parameter:
+ * value to be written to VREGS1 register
+ * Note: The complete register is written, set all bits you need
+ */
+extern int tps65010_config_vregs1(unsigned value);
+
+/* tps65013_set_low_pwr parameter:
+ * mode: ON or OFF
+ */
+extern int tps65013_set_low_pwr(unsigned mode);
+
+#endif /*  __LINUX_I2C_TPS65010_H */
+
-- 
cgit v1.2.3-59-g8ed1b


From b7a3670131c7662415fa799700fc0bdfe90a54b6 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <mike@compulab.co.il>
Date: Sun, 27 Jan 2008 18:14:50 +0100
Subject: i2c-pxa: Add polling transfer

Add polling I2C transfer implementation for PXA I2C. This is needed
for cases where I2C transactions have to occur at times interrups are
disabled.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 arch/arm/mach-pxa/pxa27x.c     |   6 ++
 drivers/i2c/busses/i2c-pxa.c   | 133 +++++++++++++++++++++++++++++++++++++----
 include/asm-arm/arch-pxa/i2c.h |   6 ++
 3 files changed, 133 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 8e126e6b74c3..57efebdc4324 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -24,6 +24,7 @@
 #include <asm/arch/ohci.h>
 #include <asm/arch/pm.h>
 #include <asm/arch/dma.h>
+#include <asm/arch/i2c.h>
 
 #include "generic.h"
 #include "devices.h"
@@ -423,6 +424,11 @@ struct platform_device pxa27x_device_i2c_power = {
 	.num_resources	= ARRAY_SIZE(i2c_power_resources),
 };
 
+void __init pxa_set_i2c_power_info(struct i2c_pxa_platform_data *info)
+{
+	pxa27x_device_i2c_power.dev.platform_data = info;
+}
+
 static struct platform_device *devices[] __initdata = {
 	&pxa_device_mci,
 	&pxa_device_udc,
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index da3ecf5c591b..2598d29fd7a4 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -65,6 +65,7 @@ struct pxa_i2c {
 	unsigned long		iosize;
 
 	int			irq;
+	int			use_pio;
 };
 
 #define _IBMR(i2c)	((i2c)->reg_base + 0)
@@ -163,6 +164,7 @@ static void i2c_pxa_show_state(struct pxa_i2c *i2c, int lno, const char *fname)
 #define eedbg(lvl, x...) do { if ((lvl) < 1) { printk(KERN_DEBUG "" x); } } while(0)
 
 static void i2c_pxa_master_complete(struct pxa_i2c *i2c, int ret);
+static irqreturn_t i2c_pxa_handler(int this_irq, void *dev_id);
 
 static void i2c_pxa_scream_blue_murder(struct pxa_i2c *i2c, const char *why)
 {
@@ -554,6 +556,71 @@ static inline void i2c_pxa_stop_message(struct pxa_i2c *i2c)
 	writel(icr, _ICR(i2c));
 }
 
+static int i2c_pxa_pio_set_master(struct pxa_i2c *i2c)
+{
+	/* make timeout the same as for interrupt based functions */
+	long timeout = 2 * DEF_TIMEOUT;
+
+	/*
+	 * Wait for the bus to become free.
+	 */
+	while (timeout-- && readl(_ISR(i2c)) & (ISR_IBB | ISR_UB)) {
+		udelay(1000);
+		show_state(i2c);
+	}
+
+	if (timeout <= 0) {
+		show_state(i2c);
+		dev_err(&i2c->adap.dev,
+			"i2c_pxa: timeout waiting for bus free\n");
+		return I2C_RETRY;
+	}
+
+	/*
+	 * Set master mode.
+	 */
+	writel(readl(_ICR(i2c)) | ICR_SCLE, _ICR(i2c));
+
+	return 0;
+}
+
+static int i2c_pxa_do_pio_xfer(struct pxa_i2c *i2c,
+			       struct i2c_msg *msg, int num)
+{
+	unsigned long timeout = 500000; /* 5 seconds */
+	int ret = 0;
+
+	ret = i2c_pxa_pio_set_master(i2c);
+	if (ret)
+		goto out;
+
+	i2c->msg = msg;
+	i2c->msg_num = num;
+	i2c->msg_idx = 0;
+	i2c->msg_ptr = 0;
+	i2c->irqlogidx = 0;
+
+	i2c_pxa_start_message(i2c);
+
+	while (timeout-- && i2c->msg_num > 0) {
+		i2c_pxa_handler(0, i2c);
+		udelay(10);
+	}
+
+	i2c_pxa_stop_message(i2c);
+
+	/*
+	 * We place the return code in i2c->msg_idx.
+	 */
+	ret = i2c->msg_idx;
+
+out:
+	if (timeout == 0)
+		i2c_pxa_scream_blue_murder(i2c, "timeout");
+
+	return ret;
+}
+
 /*
  * We are protected by the adapter bus mutex.
  */
@@ -610,6 +677,35 @@ static int i2c_pxa_do_xfer(struct pxa_i2c *i2c, struct i2c_msg *msg, int num)
 	return ret;
 }
 
+static int i2c_pxa_pio_xfer(struct i2c_adapter *adap,
+			    struct i2c_msg msgs[], int num)
+{
+	struct pxa_i2c *i2c = adap->algo_data;
+	int ret, i;
+
+	/* If the I2C controller is disabled we need to reset it
+	  (probably due to a suspend/resume destroying state). We do
+	  this here as we can then avoid worrying about resuming the
+	  controller before its users. */
+	if (!(readl(_ICR(i2c)) & ICR_IUE))
+		i2c_pxa_reset(i2c);
+
+	for (i = adap->retries; i >= 0; i--) {
+		ret = i2c_pxa_do_pio_xfer(i2c, msgs, num);
+		if (ret != I2C_RETRY)
+			goto out;
+
+		if (i2c_debug)
+			dev_dbg(&adap->dev, "Retrying transmission\n");
+		udelay(100);
+	}
+	i2c_pxa_scream_blue_murder(i2c, "exhausted retries");
+	ret = -EREMOTEIO;
+ out:
+	i2c_pxa_set_slave(i2c, ret);
+	return ret;
+}
+
 /*
  * i2c_pxa_master_complete - complete the message and wake up.
  */
@@ -621,7 +717,8 @@ static void i2c_pxa_master_complete(struct pxa_i2c *i2c, int ret)
 	i2c->msg_num = 0;
 	if (ret)
 		i2c->msg_idx = ret;
-	wake_up(&i2c->wait);
+	if (!i2c->use_pio)
+		wake_up(&i2c->wait);
 }
 
 static void i2c_pxa_irq_txempty(struct pxa_i2c *i2c, u32 isr)
@@ -840,6 +937,11 @@ static const struct i2c_algorithm i2c_pxa_algorithm = {
 	.functionality	= i2c_pxa_functionality,
 };
 
+static const struct i2c_algorithm i2c_pxa_pio_algorithm = {
+	.master_xfer	= i2c_pxa_pio_xfer,
+	.functionality	= i2c_pxa_functionality,
+};
+
 static void i2c_pxa_enable(struct platform_device *dev)
 {
 	if (cpu_is_pxa27x()) {
@@ -890,7 +992,6 @@ static int i2c_pxa_probe(struct platform_device *dev)
 	}
 
 	i2c->adap.owner   = THIS_MODULE;
-	i2c->adap.algo    = &i2c_pxa_algorithm;
 	i2c->adap.retries = 5;
 
 	spin_lock_init(&i2c->lock);
@@ -927,20 +1028,26 @@ static int i2c_pxa_probe(struct platform_device *dev)
 	clk_enable(i2c->clk);
 	i2c_pxa_enable(dev);
 
-	ret = request_irq(irq, i2c_pxa_handler, IRQF_DISABLED,
-			  i2c->adap.name, i2c);
-	if (ret)
-		goto ereqirq;
+	if (plat) {
+		i2c->adap.class = plat->class;
+		i2c->use_pio = plat->use_pio;
+	}
+
+	if (i2c->use_pio) {
+		i2c->adap.algo = &i2c_pxa_pio_algorithm;
+	} else {
+		i2c->adap.algo = &i2c_pxa_algorithm;
+		ret = request_irq(irq, i2c_pxa_handler, IRQF_DISABLED,
+				  i2c->adap.name, i2c);
+		if (ret)
+			goto ereqirq;
+	}
 
 	i2c_pxa_reset(i2c);
 
 	i2c->adap.algo_data = i2c;
 	i2c->adap.dev.parent = &dev->dev;
 
-	if (plat) {
-		i2c->adap.class = plat->class;
-	}
-
 	/*
 	 * If "dev->id" is negative we consider it as zero.
 	 * The reason to do so is to avoid sysfs names that only make
@@ -966,7 +1073,8 @@ static int i2c_pxa_probe(struct platform_device *dev)
 	return 0;
 
 eadapt:
-	free_irq(irq, i2c);
+	if (!i2c->use_pio)
+		free_irq(irq, i2c);
 ereqirq:
 	clk_disable(i2c->clk);
 	i2c_pxa_disable(dev);
@@ -986,7 +1094,8 @@ static int i2c_pxa_remove(struct platform_device *dev)
 	platform_set_drvdata(dev, NULL);
 
 	i2c_del_adapter(&i2c->adap);
-	free_irq(i2c->irq, i2c);
+	if (!i2c->use_pio)
+		free_irq(i2c->irq, i2c);
 
 	clk_disable(i2c->clk);
 	clk_put(i2c->clk);
diff --git a/include/asm-arm/arch-pxa/i2c.h b/include/asm-arm/arch-pxa/i2c.h
index e404b233d8a8..80596b013443 100644
--- a/include/asm-arm/arch-pxa/i2c.h
+++ b/include/asm-arm/arch-pxa/i2c.h
@@ -65,7 +65,13 @@ struct i2c_pxa_platform_data {
 	unsigned int		slave_addr;
 	struct i2c_slave_client	*slave;
 	unsigned int		class;
+	int			use_pio;
 };
 
 extern void pxa_set_i2c_info(struct i2c_pxa_platform_data *info);
+
+#ifdef CONFIG_PXA27x
+extern void pxa_set_i2c_power_info(struct i2c_pxa_platform_data *info);
+#endif
+
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 8b798c4d16b762d15f4055597ff8d87f73b35552 Mon Sep 17 00:00:00 2001
From: Manuel Lauss <mano@roarinelk.homelinux.net>
Date: Sun, 27 Jan 2008 18:14:52 +0100
Subject: i2c-au1550: Convert to platform driver

Convert the i2c-au1550 bus driver to platform driver, and
register a platform device for the Alchemy Db/Pb series of
boards.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 arch/mips/au1000/common/platform.c |  21 +++++
 drivers/i2c/busses/i2c-au1550.c    | 166 +++++++++++++++++++++++--------------
 drivers/i2c/busses/i2c-au1550.h    |  32 -------
 3 files changed, 123 insertions(+), 96 deletions(-)
 delete mode 100644 drivers/i2c/busses/i2c-au1550.h

(limited to 'arch')

diff --git a/arch/mips/au1000/common/platform.c b/arch/mips/au1000/common/platform.c
index d51e18fb789b..841904cdef4d 100644
--- a/arch/mips/au1000/common/platform.c
+++ b/arch/mips/au1000/common/platform.c
@@ -270,6 +270,24 @@ static struct platform_device smc91x_device = {
 
 #endif
 
+/* All Alchemy demoboards with I2C have this #define in their headers */
+#ifdef SMBUS_PSC_BASE
+static struct resource pbdb_smbus_resources[] = {
+	{
+		.start	= SMBUS_PSC_BASE,
+		.end	= SMBUS_PSC_BASE + 0x24 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device pbdb_smbus_device = {
+	.name		= "au1xpsc_smbus",
+	.id		= 0,	/* bus number */
+	.num_resources	= ARRAY_SIZE(pbdb_smbus_resources),
+	.resource	= pbdb_smbus_resources,
+};
+#endif
+
 static struct platform_device *au1xxx_platform_devices[] __initdata = {
 	&au1xxx_usb_ohci_device,
 	&au1x00_pcmcia_device,
@@ -287,6 +305,9 @@ static struct platform_device *au1xxx_platform_devices[] __initdata = {
 #ifdef CONFIG_MIPS_DB1200
 	&smc91x_device,
 #endif
+#ifdef SMBUS_PSC_BASE
+	&pbdb_smbus_device,
+#endif
 };
 
 int __init au1xxx_platform_init(void)
diff --git a/drivers/i2c/busses/i2c-au1550.c b/drivers/i2c/busses/i2c-au1550.c
index 7d51a43b38d3..1953b26da56a 100644
--- a/drivers/i2c/busses/i2c-au1550.c
+++ b/drivers/i2c/busses/i2c-au1550.c
@@ -30,14 +30,22 @@
 #include <linux/delay.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/i2c.h>
+#include <linux/slab.h>
 
 #include <asm/mach-au1x00/au1xxx.h>
 #include <asm/mach-au1x00/au1xxx_psc.h>
 
-#include "i2c-au1550.h"
+struct i2c_au1550_data {
+	u32	psc_base;
+	int	xfer_timeout;
+	int	ack_timeout;
+	struct i2c_adapter adap;
+	struct resource *ioarea;
+};
 
 static int
 wait_xfer_done(struct i2c_au1550_data *adap)
@@ -299,18 +307,48 @@ static const struct i2c_algorithm au1550_algo = {
  * Prior to calling us, the 50MHz clock frequency and routing
  * must have been set up for the PSC indicated by the adapter.
  */
-int
-i2c_au1550_add_bus(struct i2c_adapter *i2c_adap)
+static int __devinit
+i2c_au1550_probe(struct platform_device *pdev)
 {
-	struct i2c_au1550_data *adap = i2c_adap->algo_data;
-	volatile psc_smb_t	*sp;
-	u32	stat;
+	struct i2c_au1550_data *priv;
+	volatile psc_smb_t *sp;
+	struct resource *r;
+	u32 stat;
+	int ret;
+
+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!r) {
+		ret = -ENODEV;
+		goto out;
+	}
 
-	i2c_adap->algo = &au1550_algo;
+	priv = kzalloc(sizeof(struct i2c_au1550_data), GFP_KERNEL);
+	if (!priv) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	priv->ioarea = request_mem_region(r->start, r->end - r->start + 1,
+					  pdev->name);
+	if (!priv->ioarea) {
+		ret = -EBUSY;
+		goto out_mem;
+	}
+
+	priv->psc_base = r->start;
+	priv->xfer_timeout = 200;
+	priv->ack_timeout = 200;
+
+	priv->adap.id = I2C_HW_AU1550_PSC;
+	priv->adap.nr = pdev->id;
+	priv->adap.algo = &au1550_algo;
+	priv->adap.algo_data = priv;
+	priv->adap.dev.parent = &pdev->dev;
+	strlcpy(priv->adap.name, "Au1xxx PSC I2C", sizeof(priv->adap.name));
 
 	/* Now, set up the PSC for SMBus PIO mode.
 	*/
-	sp = (volatile psc_smb_t *)(adap->psc_base);
+	sp = (volatile psc_smb_t *)priv->psc_base;
 	sp->psc_ctrl = PSC_CTRL_DISABLE;
 	au_sync();
 	sp->psc_sel = PSC_SEL_PS_SMBUSMODE;
@@ -348,87 +386,87 @@ i2c_au1550_add_bus(struct i2c_adapter *i2c_adap)
 		au_sync();
 	} while ((stat & PSC_SMBSTAT_DR) == 0);
 
-	return i2c_add_adapter(i2c_adap);
-}
+	ret = i2c_add_numbered_adapter(&priv->adap);
+	if (ret == 0) {
+		platform_set_drvdata(pdev, priv);
+		return 0;
+	}
+
+	/* disable the PSC */
+	sp->psc_smbcfg = 0;
+	sp->psc_ctrl = PSC_CTRL_DISABLE;
+	au_sync();
 
+	release_resource(priv->ioarea);
+	kfree(priv->ioarea);
+out_mem:
+	kfree(priv);
+out:
+	return ret;
+}
 
-int
-i2c_au1550_del_bus(struct i2c_adapter *adap)
+static int __devexit
+i2c_au1550_remove(struct platform_device *pdev)
 {
-	return i2c_del_adapter(adap);
+	struct i2c_au1550_data *priv = platform_get_drvdata(pdev);
+	volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
+
+	platform_set_drvdata(pdev, NULL);
+	i2c_del_adapter(&priv->adap);
+	sp->psc_smbcfg = 0;
+	sp->psc_ctrl = PSC_CTRL_DISABLE;
+	au_sync();
+	release_resource(priv->ioarea);
+	kfree(priv->ioarea);
+	kfree(priv);
+	return 0;
 }
 
 static int
-pb1550_reg(struct i2c_client *client)
+i2c_au1550_suspend(struct platform_device *pdev, pm_message_t state)
 {
+	struct i2c_au1550_data *priv = platform_get_drvdata(pdev);
+	volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
+
+	sp->psc_ctrl = PSC_CTRL_SUSPEND;
+	au_sync();
 	return 0;
 }
 
 static int
-pb1550_unreg(struct i2c_client *client)
+i2c_au1550_resume(struct platform_device *pdev)
 {
+	struct i2c_au1550_data *priv = platform_get_drvdata(pdev);
+	volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
+
+	sp->psc_ctrl = PSC_CTRL_ENABLE;
+	au_sync();
+	while (!(sp->psc_smbstat & PSC_SMBSTAT_SR))
+		au_sync();
 	return 0;
 }
 
-static struct i2c_au1550_data pb1550_i2c_info = {
-	SMBUS_PSC_BASE, 200, 200
-};
-
-static struct i2c_adapter pb1550_board_adapter = {
-	name:              "pb1550 adapter",
-	id:                I2C_HW_AU1550_PSC,
-	algo:              NULL,
-	algo_data:         &pb1550_i2c_info,
-	client_register:   pb1550_reg,
-	client_unregister: pb1550_unreg,
+static struct platform_driver au1xpsc_smbus_driver = {
+	.driver = {
+		.name	= "au1xpsc_smbus",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= i2c_au1550_probe,
+	.remove		= __devexit_p(i2c_au1550_remove),
+	.suspend	= i2c_au1550_suspend,
+	.resume		= i2c_au1550_resume,
 };
 
-/* BIG hack to support the control interface on the Wolfson WM8731
- * audio codec on the Pb1550 board.  We get an address and two data
- * bytes to write, create an i2c message, and send it across the
- * i2c transfer function.  We do this here because we have access to
- * the i2c adapter structure.
- */
-static struct i2c_msg wm_i2c_msg;  /* We don't want this stuff on the stack */
-static	u8 i2cbuf[2];
-
-int
-pb1550_wm_codec_write(u8 addr, u8 reg, u8 val)
-{
-	wm_i2c_msg.addr = addr;
-	wm_i2c_msg.flags = 0;
-	wm_i2c_msg.buf = i2cbuf;
-	wm_i2c_msg.len = 2;
-	i2cbuf[0] = reg;
-	i2cbuf[1] = val;
-
-	return pb1550_board_adapter.algo->master_xfer(&pb1550_board_adapter, &wm_i2c_msg, 1);
-}
-
 static int __init
 i2c_au1550_init(void)
 {
-	printk(KERN_INFO "Au1550 I2C: ");
-
-	/* This is where we would set up a 50MHz clock source
-	 * and routing.  On the Pb1550, the SMBus is PSC2, which
-	 * uses a shared clock with USB.  This has been already
-	 * configured by Yamon as a 48MHz clock, close enough
-	 * for our work.
-	 */
-        if (i2c_au1550_add_bus(&pb1550_board_adapter) < 0) {
-		printk("failed to initialize.\n");
-                return -ENODEV;
-	}
-
-	printk("initialized.\n");
-	return 0;
+	return platform_driver_register(&au1xpsc_smbus_driver);
 }
 
 static void __exit
 i2c_au1550_exit(void)
 {
-	i2c_au1550_del_bus(&pb1550_board_adapter);
+	platform_driver_unregister(&au1xpsc_smbus_driver);
 }
 
 MODULE_AUTHOR("Dan Malek, Embedded Edge, LLC.");
diff --git a/drivers/i2c/busses/i2c-au1550.h b/drivers/i2c/busses/i2c-au1550.h
deleted file mode 100644
index fce15d161ae7..000000000000
--- a/drivers/i2c/busses/i2c-au1550.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (C) 2004 Embedded Edge, LLC <dan@embeddededge.com>
- * 2.6 port by Matt Porter <mporter@kernel.crashing.org>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef I2C_AU1550_H
-#define I2C_AU1550_H
-
-struct i2c_au1550_data {
-	u32	psc_base;
-	int	xfer_timeout;
-	int	ack_timeout;
-};
-
-int i2c_au1550_add_bus(struct i2c_adapter *);
-int i2c_au1550_del_bus(struct i2c_adapter *);
-
-#endif /* I2C_AU1550_H */
-- 
cgit v1.2.3-59-g8ed1b


From eaf858a988a4b7b34a6ae03a3ac52cdf25013892 Mon Sep 17 00:00:00 2001
From: David Brownell <david-b@pacbell.net>
Date: Mon, 14 Jan 2008 08:53:22 +0100
Subject: [ARM] 4615/4: sam926[13]ek buttons updated

From: Nicolas Ferre <nicolas.ferre@rfo.atmel.com>

On the at92sam9263ek board, tell the input subsystem about the buttons.
This patch is taken from Andrew Victor's at91 patchset, then updated to
match the latest kernel code and to use labels printed on the board.

Also update the at91sam9261ek buttons to cope with input changes.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/board-sam9261ek.c |  8 +++---
 arch/arm/mach-at91/board-sam9263ek.c | 53 ++++++++++++++++++++++++++++++++++++
 2 files changed, 57 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c
index 594c5c100ef9..aa29ea58ca09 100644
--- a/arch/arm/mach-at91/board-sam9261ek.c
+++ b/arch/arm/mach-at91/board-sam9261ek.c
@@ -404,25 +404,25 @@ static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 static struct gpio_keys_button ek_buttons[] = {
 	{
 		.gpio		= AT91_PIN_PA27,
-		.keycode	= BTN_0,
+		.code		= BTN_0,
 		.desc		= "Button 0",
 		.active_low	= 1,
 	},
 	{
 		.gpio		= AT91_PIN_PA26,
-		.keycode	= BTN_1,
+		.code		= BTN_1,
 		.desc		= "Button 1",
 		.active_low	= 1,
 	},
 	{
 		.gpio		= AT91_PIN_PA25,
-		.keycode	= BTN_2,
+		.code		= BTN_2,
 		.desc		= "Button 2",
 		.active_low	= 1,
 	},
 	{
 		.gpio		= AT91_PIN_PA24,
-		.keycode	= BTN_3,
+		.code		= BTN_3,
 		.desc		= "Button 3",
 		.active_low	= 1,
 	}
diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index 2df0ff25d147..f09347a86e71 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -27,6 +27,8 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
 #include <linux/fb.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
 
 #include <video/atmel_lcdc.h>
 
@@ -264,6 +266,55 @@ static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 #endif
 
 
+/*
+ * GPIO Buttons
+ */
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+static struct gpio_keys_button ek_buttons[] = {
+	{	/* BP1, "leftclic" */
+		.code		= BTN_LEFT,
+		.gpio		= AT91_PIN_PC5,
+		.active_low	= 1,
+		.desc		= "left_click",
+		.wakeup		= 1,
+	},
+	{	/* BP2, "rightclic" */
+		.code		= BTN_RIGHT,
+		.gpio		= AT91_PIN_PC4,
+		.active_low	= 1,
+		.desc		= "right_click",
+		.wakeup		= 1,
+	},
+};
+
+static struct gpio_keys_platform_data ek_button_data = {
+	.buttons	= ek_buttons,
+	.nbuttons	= ARRAY_SIZE(ek_buttons),
+};
+
+static struct platform_device ek_button_device = {
+	.name		= "gpio-keys",
+	.id		= -1,
+	.num_resources	= 0,
+	.dev		= {
+		.platform_data	= &ek_button_data,
+	}
+};
+
+static void __init ek_add_device_buttons(void)
+{
+	at91_set_GPIO_periph(AT91_PIN_PC5, 0);	/* left button */
+	at91_set_deglitch(AT91_PIN_PC5, 1);
+	at91_set_GPIO_periph(AT91_PIN_PC4, 0);	/* right button */
+	at91_set_deglitch(AT91_PIN_PC4, 1);
+
+	platform_device_register(&ek_button_device);
+}
+#else
+static void __init ek_add_device_buttons(void) {}
+#endif
+
+
 /*
  * AC97
  */
@@ -319,6 +370,8 @@ static void __init ek_board_init(void)
 	at91_add_device_i2c(NULL, 0);
 	/* LCD Controller */
 	at91_add_device_lcdc(&ek_lcdc_data);
+	/* Push Buttons */
+	ek_add_device_buttons();
 	/* AC97 */
 	at91_add_device_ac97(&ek_ac97_data);
 	/* LEDs */
-- 
cgit v1.2.3-59-g8ed1b


From 404aae5d420ec543e2e8434f7ec0edf5e2d2b0c4 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Sun, 27 Jan 2008 10:29:20 -0800
Subject: x86: fix runtime error in arch/x86/kernel/cpu/mcheck/mce_amd_64.c

This problem is due to the kobject rework recently done in this file.

The mce_amd_64.c code uses some wierd forward calls to back out of the
recursive way the code creates kobjects.  Because of this, we need to
verify that we have really created a kobject before calling
kobject_uevent().

Many thanks to Yinghai Lu <yhlu.kernel@gmail.com> for reporting the
problem and testing.

Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Jacob Shin <jacob.shin@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/x86/kernel/cpu/mcheck/mce_amd_64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index 753588755fee..073afa7dd89a 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -450,7 +450,8 @@ recurse:
 	if (err)
 		goto out_free;
 
-	kobject_uevent(&b->kobj, KOBJ_ADD);
+	if (b)
+		kobject_uevent(&b->kobj, KOBJ_ADD);
 
 	return err;
 
-- 
cgit v1.2.3-59-g8ed1b


From c847c853a5c562bac940c544748525d038167275 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Sun, 27 Jan 2008 11:45:30 +1100
Subject: PPC: Fix powerpc vio_find_name to not use devices_subsys

This fixes vio_find_name() in arch/powerpc/kernel/vio.c, which is
currently broken because it tries to use devices_subsys.  That is bad
for two reasons: (1) it's doing (or trying to do) a scan of all
devices when it should only be scanning those on the vio bus, and
(2) devices_subsys was an internal symbol of the device system code
which was never meant for external use and has now gone away, and
thus the kernel fails to compile on pSeries.

The new version uses bus_find_device_by_name() on the vio bus
(vio_bus_type).

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/powerpc/kernel/vio.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

(limited to 'arch')

diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 19a5656001c0..f0bad7070fb5 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -37,8 +37,6 @@
 #include <asm/iseries/hv_call_xm.h>
 #include <asm/iseries/iommu.h>
 
-extern struct kset devices_subsys; /* needed for vio_find_name() */
-
 static struct bus_type vio_bus_type;
 
 static struct vio_dev vio_bus_device  = { /* fake "parent" device */
@@ -361,19 +359,16 @@ EXPORT_SYMBOL(vio_get_attribute);
 #ifdef CONFIG_PPC_PSERIES
 /* vio_find_name() - internal because only vio.c knows how we formatted the
  * kobject name
- * XXX once vio_bus_type.devices is actually used as a kset in
- * drivers/base/bus.c, this function should be removed in favor of
- * "device_find(kobj_name, &vio_bus_type)"
  */
-static struct vio_dev *vio_find_name(const char *kobj_name)
+static struct vio_dev *vio_find_name(const char *name)
 {
-	struct kobject *found;
+	struct device *found;
 
-	found = kset_find_obj(&devices_subsys, kobj_name);
+	found = bus_find_device_by_name(&vio_bus_type, NULL, name);
 	if (!found)
 		return NULL;
 
-	return to_vio_dev(container_of(found, struct device, kobj));
+	return to_vio_dev(found);
 }
 
 /**
-- 
cgit v1.2.3-59-g8ed1b


From 6c7e2a55d3f89deb5bc478ab1759a3a799890c7d Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 8 Nov 2007 14:45:55 +0900
Subject: sh64: Use the generic rtc-sh driver.

Rip out the sh64-specific RTC bits, use rtc-sh instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh64/kernel/time.c | 196 +++++++++++++++++-------------------------------
 1 file changed, 67 insertions(+), 129 deletions(-)

(limited to 'arch')

diff --git a/arch/sh64/kernel/time.c b/arch/sh64/kernel/time.c
index 06f3c179e345..d1a9b5b078bd 100644
--- a/arch/sh64/kernel/time.c
+++ b/arch/sh64/kernel/time.c
@@ -6,7 +6,7 @@
  * arch/sh64/kernel/time.c
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003, 2004  Paul Mundt
+ * Copyright (C) 2003 - 2007  Paul Mundt
  * Copyright (C) 2003  Richard Curnow
  *
  *    Original TMU/RTC code taken from sh version.
@@ -14,7 +14,6 @@
  *      Some code taken from i386 version.
  *      Copyright (C) 1991, 1992, 1995  Linus Torvalds
  */
-
 #include <linux/errno.h>
 #include <linux/rwsem.h>
 #include <linux/sched.h>
@@ -30,17 +29,15 @@
 #include <linux/smp.h>
 #include <linux/module.h>
 #include <linux/bcd.h>
-
+#include <linux/timex.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
 #include <asm/registers.h>	 /* required by inline __asm__ stmt. */
-
 #include <asm/processor.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/delay.h>
-
-#include <linux/timex.h>
-#include <linux/irq.h>
 #include <asm/hardware.h>
 
 #define TMU_TOCR_INIT	0x00
@@ -48,19 +45,11 @@
 #define TMU_TSTR_INIT	1
 #define TMU_TSTR_OFF	0
 
-/* RCR1 Bits */
-#define RCR1_CF		0x80	/* Carry Flag             */
-#define RCR1_CIE	0x10	/* Carry Interrupt Enable */
-#define RCR1_AIE	0x08	/* Alarm Interrupt Enable */
-#define RCR1_AF		0x01	/* Alarm Flag             */
-
-/* RCR2 Bits */
-#define RCR2_PEF	0x80	/* PEriodic interrupt Flag */
-#define RCR2_PESMASK	0x70	/* Periodic interrupt Set  */
-#define RCR2_RTCEN	0x08	/* ENable RTC              */
-#define RCR2_ADJ	0x04	/* ADJustment (30-second)  */
-#define RCR2_RESET	0x02	/* Reset bit               */
-#define RCR2_START	0x01	/* Start bit               */
+/* Real Time Clock */
+#define	RTC_BLOCK_OFF	0x01040000
+#define RTC_BASE	PHYS_PERIPHERAL_BLOCK + RTC_BLOCK_OFF
+#define RTC_RCR1_CIE	0x10	/* Carry Interrupt Enable */
+#define RTC_RCR1	(rtc_base + 0x38)
 
 /* Clock, Power and Reset Controller */
 #define	CPRC_BLOCK_OFF	0x01010000
@@ -84,27 +73,6 @@
 #define TMU0_TCNT	TMU0_BASE+0x4	/* Long access */
 #define TMU0_TCR	TMU0_BASE+0x8	/* Word access */
 
-/* Real Time Clock */
-#define	RTC_BLOCK_OFF	0x01040000
-#define RTC_BASE	PHYS_PERIPHERAL_BLOCK + RTC_BLOCK_OFF
-
-#define R64CNT  	rtc_base+0x00
-#define RSECCNT 	rtc_base+0x04
-#define RMINCNT 	rtc_base+0x08
-#define RHRCNT  	rtc_base+0x0c
-#define RWKCNT  	rtc_base+0x10
-#define RDAYCNT 	rtc_base+0x14
-#define RMONCNT 	rtc_base+0x18
-#define RYRCNT  	rtc_base+0x1c	/* 16bit */
-#define RSECAR  	rtc_base+0x20
-#define RMINAR  	rtc_base+0x24
-#define RHRAR   	rtc_base+0x28
-#define RWKAR   	rtc_base+0x2c
-#define RDAYAR  	rtc_base+0x30
-#define RMONAR  	rtc_base+0x34
-#define RCR1    	rtc_base+0x38
-#define RCR2    	rtc_base+0x3c
-
 #define TICK_SIZE (tick_nsec / 1000)
 
 static unsigned long tmu_base, rtc_base;
@@ -236,47 +204,23 @@ int do_settimeofday(struct timespec *tv)
 }
 EXPORT_SYMBOL(do_settimeofday);
 
-static int set_rtc_time(unsigned long nowtime)
+/* Dummy RTC ops */
+static void null_rtc_get_time(struct timespec *tv)
 {
-	int retval = 0;
-	int real_seconds, real_minutes, cmos_minutes;
-
-	ctrl_outb(RCR2_RESET, RCR2);  /* Reset pre-scaler & stop RTC */
-
-	cmos_minutes = ctrl_inb(RMINCNT);
-	BCD_TO_BIN(cmos_minutes);
-
-	/*
-	 * since we're only adjusting minutes and seconds,
-	 * don't interfere with hour overflow. This avoids
-	 * messing with unknown time zones but requires your
-	 * RTC not to be off by more than 15 minutes
-	 */
-	real_seconds = nowtime % 60;
-	real_minutes = nowtime / 60;
-	if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
-		real_minutes += 30;	/* correct for half hour time zone */
-	real_minutes %= 60;
-
-	if (abs(real_minutes - cmos_minutes) < 30) {
-		BIN_TO_BCD(real_seconds);
-		BIN_TO_BCD(real_minutes);
-		ctrl_outb(real_seconds, RSECCNT);
-		ctrl_outb(real_minutes, RMINCNT);
-	} else {
-		printk(KERN_WARNING
-		       "set_rtc_time: can't update from %d to %d\n",
-		       cmos_minutes, real_minutes);
-		retval = -1;
-	}
-
-	ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2);  /* Start RTC */
+	tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0);
+	tv->tv_nsec = 0;
+}
 
-	return retval;
+static int null_rtc_set_time(const time_t secs)
+{
+	return 0;
 }
 
+void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time;
+int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time;
+
 /* last time the RTC clock got updated */
-static long last_rtc_update = 0;
+static long last_rtc_update;
 
 /*
  * timer_interrupt() needs to keep up the real-time clock,
@@ -312,10 +256,11 @@ static inline void do_timer_interrupt(void)
 	    xtime.tv_sec > last_rtc_update + 660 &&
 	    (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
 	    (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
-		if (set_rtc_time(xtime.tv_sec) == 0)
+		if (rtc_sh_set_time(xtime.tv_sec) == 0)
 			last_rtc_update = xtime.tv_sec;
 		else
-			last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */
+			/* do it again in 60 s */
+			last_rtc_update = xtime.tv_sec - 600;
 	}
 }
 
@@ -347,50 +292,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static unsigned long get_rtc_time(void)
-{
-	unsigned int sec, min, hr, wk, day, mon, yr, yr100;
-
- again:
-	do {
-		ctrl_outb(0, RCR1);  /* Clear CF-bit */
-		sec = ctrl_inb(RSECCNT);
-		min = ctrl_inb(RMINCNT);
-		hr  = ctrl_inb(RHRCNT);
-		wk  = ctrl_inb(RWKCNT);
-		day = ctrl_inb(RDAYCNT);
-		mon = ctrl_inb(RMONCNT);
-		yr  = ctrl_inw(RYRCNT);
-		yr100 = (yr >> 8);
-		yr &= 0xff;
-	} while ((ctrl_inb(RCR1) & RCR1_CF) != 0);
-
-	BCD_TO_BIN(yr100);
-	BCD_TO_BIN(yr);
-	BCD_TO_BIN(mon);
-	BCD_TO_BIN(day);
-	BCD_TO_BIN(hr);
-	BCD_TO_BIN(min);
-	BCD_TO_BIN(sec);
-
-	if (yr > 99 || mon < 1 || mon > 12 || day > 31 || day < 1 ||
-	    hr > 23 || min > 59 || sec > 59) {
-		printk(KERN_ERR
-		       "SH RTC: invalid value, resetting to 1 Jan 2000\n");
-		ctrl_outb(RCR2_RESET, RCR2);  /* Reset & Stop */
-		ctrl_outb(0, RSECCNT);
-		ctrl_outb(0, RMINCNT);
-		ctrl_outb(0, RHRCNT);
-		ctrl_outb(6, RWKCNT);
-		ctrl_outb(1, RDAYCNT);
-		ctrl_outb(1, RMONCNT);
-		ctrl_outw(0x2000, RYRCNT);
-		ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2);  /* Start */
-		goto again;
-	}
-
-	return mktime(yr100 * 100 + yr, mon, day, hr, min, sec);
-}
 
 static __init unsigned int get_cpu_hz(void)
 {
@@ -406,8 +307,8 @@ static __init unsigned int get_cpu_hz(void)
 	register unsigned long long  __rtc_irq_flag __asm__ ("r3");
 
 	local_irq_enable();
-	do {} while (ctrl_inb(R64CNT) != 0);
-	ctrl_outb(RCR1_CIE, RCR1); /* Enable carry interrupt */
+	do {} while (ctrl_inb(rtc_base) != 0);
+	ctrl_outb(RTC_RCR1_CIE, RTC_RCR1); /* Enable carry interrupt */
 
 	/*
 	 * r3 is arbitrary. CDC does not support "=z".
@@ -470,7 +371,7 @@ static irqreturn_t sh64_rtc_interrupt(int irq, void *dev_id)
 {
 	struct pt_regs *regs = get_irq_regs();
 
-	ctrl_outb(0, RCR1);	/* Disable Carry Interrupts */
+	ctrl_outb(0, RTC_RCR1);	/* Disable Carry Interrupts */
 	regs->regs[3] = 1;	/* Using r3 */
 
 	return IRQ_HANDLED;
@@ -513,8 +414,7 @@ void __init time_init(void)
 		panic("Unable to remap CPRC\n");
 	}
 
-	xtime.tv_sec = get_rtc_time();
-	xtime.tv_nsec = 0;
+	rtc_sh_get_time(&xtime);
 
 	setup_irq(TIMER_IRQ, &irq0);
 	setup_irq(RTC_IRQ, &irq1);
@@ -525,7 +425,7 @@ void __init time_init(void)
 	/* Note careful order of operations to maintain reasonable precision and avoid overflow. */
 	scaled_recip_ctc_ticks_per_jiffy = ((1ULL << CTC_JIFFY_SCALE_SHIFT) / (unsigned long long)(cpu_clock / HZ));
 
-	disable_irq(RTC_IRQ);
+	free_irq(RTC_IRQ, NULL);
 
 	printk("CPU clock: %d.%02dMHz\n",
 	       (cpu_clock / 1000000), (cpu_clock % 1000000)/10000);
@@ -591,3 +491,41 @@ void enter_deep_standby(void)
 	asm __volatile__ ("nop");
 	panic("Unexpected wakeup!\n");
 }
+
+static struct resource rtc_resources[] = {
+	[0] = {
+		/* RTC base, filled in by rtc_init */
+		.flags	= IORESOURCE_IO,
+	},
+	[1] = {
+		/* Period IRQ */
+		.start	= IRQ_PRI,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* Carry IRQ */
+		.start	= IRQ_CUI,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		/* Alarm IRQ */
+		.start	= IRQ_ATI,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device rtc_device = {
+	.name		= "sh-rtc",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(rtc_resources),
+	.resource	= rtc_resources,
+};
+
+static int __init rtc_init(void)
+{
+	rtc_resources[0].start	= rtc_base;
+	rtc_resources[0].end	= rtc_resources[0].start + 0x58 - 1;
+
+	return platform_device_register(&rtc_device);
+}
+device_initcall(rtc_init);
-- 
cgit v1.2.3-59-g8ed1b


From c2254f5a744eda55e73f5592d5bdcf75c0a5302c Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 8 Nov 2007 18:30:40 +0900
Subject: sh: Rename Kconfig to Kconfig.sh.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig    | 767 -----------------------------------------------------
 arch/sh/Kconfig.sh | 767 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 767 insertions(+), 767 deletions(-)
 delete mode 100644 arch/sh/Kconfig
 create mode 100644 arch/sh/Kconfig.sh

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
deleted file mode 100644
index 496d635f89b2..000000000000
--- a/arch/sh/Kconfig
+++ /dev/null
@@ -1,767 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/kconfig-language.txt.
-#
-
-mainmenu "Linux/SuperH Kernel Configuration"
-
-config SUPERH
-	bool
-	default y
-	select EMBEDDED
-	help
-	  The SuperH is a RISC processor targeted for use in embedded systems
-	  and consumer electronics; it was also used in the Sega Dreamcast
-	  gaming console.  The SuperH port has a home page at
-	  <http://www.linux-sh.org/>.
-
-config RWSEM_GENERIC_SPINLOCK
-	bool
-	default y
-
-config RWSEM_XCHGADD_ALGORITHM
-	bool
-
-config GENERIC_BUG
-	def_bool y
-	depends on BUG
-
-config GENERIC_FIND_NEXT_BIT
-	bool
-	default y
-
-config GENERIC_HWEIGHT
-	bool
-	default y
-
-config GENERIC_HARDIRQS
-	bool
-	default y
-
-config GENERIC_IRQ_PROBE
-	bool
-	default y
-
-config GENERIC_CALIBRATE_DELAY
-	bool
-	default y
-
-config GENERIC_IOMAP
-	bool
-
-config GENERIC_TIME
-	def_bool n
-
-config GENERIC_CLOCKEVENTS
-	def_bool n
-
-config SYS_SUPPORTS_PM
-	bool
-
-config SYS_SUPPORTS_APM_EMULATION
-	bool
-	select SYS_SUPPORTS_PM
-
-config SYS_SUPPORTS_SMP
-	bool
-
-config SYS_SUPPORTS_NUMA
-	bool
-
-config SYS_SUPPORTS_PCI
-	bool
-
-config ARCH_MAY_HAVE_PC_FDC
-	bool
-
-config STACKTRACE_SUPPORT
-	bool
-	default y
-
-config LOCKDEP_SUPPORT
-	bool
-	default y
-
-config ARCH_HAS_ILOG2_U32
-	bool
-	default n
-
-config ARCH_HAS_ILOG2_U64
-	bool
-	default n
-
-config ARCH_NO_VIRT_TO_BUS
-	def_bool y
-
-source "init/Kconfig"
-
-menu "System type"
-
-source "arch/sh/mm/Kconfig"
-
-menu "Processor features"
-
-choice
-	prompt "Endianess selection" 
-	default CPU_LITTLE_ENDIAN
-	help
-	  Some SuperH machines can be configured for either little or big
-	  endian byte order. These modes require different kernels.
-
-config CPU_LITTLE_ENDIAN
-	bool "Little Endian"
-
-config CPU_BIG_ENDIAN
-	bool "Big Endian"
-
-endchoice
-
-config SH_FPU
-	bool "FPU support"
-	depends on CPU_HAS_FPU
-	default y
-	help
-	  Selecting this option will enable support for SH processors that
-	  have FPU units (ie, SH77xx).
-
-	  This option must be set in order to enable the FPU.
-
-config SH_FPU_EMU
-	bool "FPU emulation support"
-	depends on !SH_FPU && EXPERIMENTAL
-	default n
-	help
-	  Selecting this option will enable support for software FPU emulation.
-	  Most SH-3 users will want to say Y here, whereas most SH-4 users will
-	  want to say N.
-
-config SH_DSP
-	bool "DSP support"
-	depends on CPU_HAS_DSP
-	default y
-	help
-	  Selecting this option will enable support for SH processors that
-	  have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
-
-	  This option must be set in order to enable the DSP.
-
-config SH_ADC
-	bool "ADC support"
-	depends on CPU_SH3
-	default y
-	help
-	  Selecting this option will allow the Linux kernel to use SH3 on-chip
-	  ADC module.
-
-	  If unsure, say N.
-
-config SH_STORE_QUEUES
-	bool "Support for Store Queues"
-	depends on CPU_SH4
-	help
-	  Selecting this option will enable an in-kernel API for manipulating
-	  the store queues integrated in the SH-4 processors.
-
-config SPECULATIVE_EXECUTION
-	bool "Speculative subroutine return"
-	depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL
-	help
-	  This enables support for a speculative instruction fetch for
-	  subroutine return. There are various pitfalls associated with
-	  this, as outlined in the SH7780 hardware manual.
-
-	  If unsure, say N.
-
-config CPU_HAS_INTEVT
-	bool
-
-config CPU_HAS_MASKREG_IRQ
-	bool
-
-config CPU_HAS_IPR_IRQ
-	bool
-
-config CPU_HAS_SR_RB
-	bool
-	help
-	  This will enable the use of SR.RB register bank usage. Processors
-	  that are lacking this bit must have another method in place for
-	  accomplishing what is taken care of by the banked registers.
-
-	  See <file:Documentation/sh/register-banks.txt> for further
-	  information on SR.RB and register banking in the kernel in general.
-
-config CPU_HAS_PTEA
-	bool
-
-config CPU_HAS_DSP
-	bool
-
-config CPU_HAS_FPU
-	bool
-
-endmenu
-
-menu "Board support"
-
-config SOLUTION_ENGINE
-	bool
-
-config SH_SOLUTION_ENGINE
-	bool "SolutionEngine"
-	select SOLUTION_ENGINE
-	select CPU_HAS_IPR_IRQ
-	depends on CPU_SUBTYPE_SH7705 || CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7710 || \
-	  CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7750S || \
-	  CPU_SUBTYPE_SH7750R 
-	help
-	  Select SolutionEngine if configuring for a Hitachi SH7705, SH7709,
-	  SH7710, SH7712, SH7750, SH7750S or SH7750R evaluation board.
-
-config SH_7206_SOLUTION_ENGINE
-	bool "SolutionEngine7206"
-	select SOLUTION_ENGINE
-	depends on CPU_SUBTYPE_SH7206
-	help
-	  Select 7206 SolutionEngine if configuring for a Hitachi SH7206
-	  evaluation board.
-
-config SH_7619_SOLUTION_ENGINE
-	bool "SolutionEngine7619"
-	select SOLUTION_ENGINE
-	depends on CPU_SUBTYPE_SH7619
-	help
-	  Select 7619 SolutionEngine if configuring for a Hitachi SH7619
-	  evaluation board.
-	
-config SH_7722_SOLUTION_ENGINE
-	bool "SolutionEngine7722"
-	select SOLUTION_ENGINE
-	depends on CPU_SUBTYPE_SH7722
-	help
-	  Select 7722 SolutionEngine if configuring for a Hitachi SH772
-	  evaluation board.
-
-config SH_7751_SOLUTION_ENGINE
-	bool "SolutionEngine7751"
-	select SOLUTION_ENGINE
-	select CPU_HAS_IPR_IRQ
-	depends on CPU_SUBTYPE_SH7751
-	help
-	  Select 7751 SolutionEngine if configuring for a Hitachi SH7751
-	  evaluation board.
-	  
-config SH_7780_SOLUTION_ENGINE
-	bool "SolutionEngine7780"
-	select SOLUTION_ENGINE
-	select SYS_SUPPORTS_PCI
-	depends on CPU_SUBTYPE_SH7780
-	help
-	  Select 7780 SolutionEngine if configuring for a Renesas SH7780
-	  evaluation board.
-
-config SH_7343_SOLUTION_ENGINE
-	bool "SolutionEngine7343"
-	select SOLUTION_ENGINE
-	depends on CPU_SUBTYPE_SH7343
-	help
-	  Select 7343 SolutionEngine if configuring for a Hitachi
-	  SH7343 (SH-Mobile 3AS) evaluation board.
-
-config SH_7751_SYSTEMH
-	bool "SystemH7751R"
-	depends on CPU_SUBTYPE_SH7751R
-	help
-	  Select SystemH if you are configuring for a Renesas SystemH
-	  7751R evaluation board.
-
-config SH_HP6XX
-	bool "HP6XX"
-	select SYS_SUPPORTS_APM_EMULATION
-	select HD6446X_SERIES
-	depends on CPU_SUBTYPE_SH7709
-	help
-	  Select HP6XX if configuring for a HP jornada HP6xx.
-	  More information (hardware only) at
-	  <http://www.hp.com/jornada/>.
-
-config SH_DREAMCAST
-	bool "Dreamcast"
-	select SYS_SUPPORTS_PCI
-	depends on CPU_SUBTYPE_SH7091
-	help
-	  Select Dreamcast if configuring for a SEGA Dreamcast.
-	  More information at <http://www.linux-sh.org>
-
-config SH_MPC1211
-	bool "Interface MPC1211"
-	depends on CPU_SUBTYPE_SH7751 && BROKEN
-	help
-	  CTP/PCI-SH02 is a CPU module computer that is produced
-	  by Interface Corporation.
-	  More information at <http://www.interface.co.jp>
-
-config SH_SH03
-	bool "Interface CTP/PCI-SH03"
-	depends on CPU_SUBTYPE_SH7751
-	select CPU_HAS_IPR_IRQ
-	select SYS_SUPPORTS_PCI
-	help
-	  CTP/PCI-SH03 is a CPU module computer that is produced
-	  by Interface Corporation.
-	  More information at <http://www.interface.co.jp>
-
-config SH_SECUREEDGE5410
-	bool "SecureEdge5410"
-	depends on CPU_SUBTYPE_SH7751R
-	select CPU_HAS_IPR_IRQ
-	select SYS_SUPPORTS_PCI
-	help
-	  Select SecureEdge5410 if configuring for a SnapGear SH board.
-	  This includes both the OEM SecureEdge products as well as the
-	  SME product line.
-
-config SH_HS7751RVOIP
-	bool "HS7751RVOIP"
-	depends on CPU_SUBTYPE_SH7751R
-	help
-	  Select HS7751RVOIP if configuring for a Renesas Technology
-	  Sales VoIP board.
-
-config SH_7710VOIPGW
-	bool "SH7710-VOIP-GW"
-	depends on CPU_SUBTYPE_SH7710
-	help
-	  Select this option to build a kernel for the SH7710 based
-	  VOIP GW.
-
-config SH_RTS7751R2D
-	bool "RTS7751R2D"
-	depends on CPU_SUBTYPE_SH7751R
-	select SYS_SUPPORTS_PCI
-	help
-	  Select RTS7751R2D if configuring for a Renesas Technology
-	  Sales SH-Graphics board.
-
-config SH_HIGHLANDER
-	bool "Highlander"
-	depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
-	select SYS_SUPPORTS_PCI
-
-config SH_EDOSK7705
-	bool "EDOSK7705"
-	depends on CPU_SUBTYPE_SH7705
-
-config SH_SH4202_MICRODEV
-	bool "SH4-202 MicroDev"
-	depends on CPU_SUBTYPE_SH4_202
-	help
-	  Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
-	  with an SH4-202 CPU.
-
-config SH_LANDISK
-	bool "LANDISK"
-	depends on CPU_SUBTYPE_SH7751R
-	select SYS_SUPPORTS_PCI
-	help
-	  I-O DATA DEVICE, INC. "LANDISK Series" support.
-
-config SH_TITAN
-	bool "TITAN"
-	depends on CPU_SUBTYPE_SH7751R
-	select CPU_HAS_IPR_IRQ
-	select SYS_SUPPORTS_PCI
-	help
-	  Select Titan if you are configuring for a Nimble Microsystems
-	  NetEngine NP51R.
-
-config SH_SHMIN
-	bool "SHMIN"
-	depends on CPU_SUBTYPE_SH7706
-	select CPU_HAS_IPR_IRQ
-	help
-	  Select SHMIN if configuring for the SHMIN board.
-
-config SH_LBOX_RE2
-	bool "L-BOX RE2"
-	depends on CPU_SUBTYPE_SH7751R
-	select SYS_SUPPORTS_PCI
-	help
-	  Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
-
-config SH_X3PROTO
-	bool "SH-X3 Prototype board"
-	depends on CPU_SUBTYPE_SHX3
-
-config SH_MAGIC_PANEL_R2
-	bool "Magic Panel R2"
-	depends on CPU_SUBTYPE_SH7720
-	help
-	  Select Magic Panel R2 if configuring for Magic Panel R2.
-
-endmenu
-
-source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
-source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
-source "arch/sh/boards/renesas/r7780rp/Kconfig"
-source "arch/sh/boards/magicpanelr2/Kconfig"
-
-menu "Timer and clock configuration"
-
-config SH_TMU
-	bool "TMU timer support"
-	depends on CPU_SH3 || CPU_SH4
-	select GENERIC_TIME
-	select GENERIC_CLOCKEVENTS
-	default y
-	help
-	  This enables the use of the TMU as the system timer.
-
-config SH_CMT
-	bool "CMT timer support"
-	depends on CPU_SH2
-	default y
-	help
-	  This enables the use of the CMT as the system timer.
-
-config SH_MTU2
-	bool "MTU2 timer support"
-	depends on CPU_SH2A
-	default n
-	help
-	  This enables the use of the MTU2 as the system timer.
-
-config SH_TIMER_IRQ
-	int
-	default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
-	default "86" if CPU_SUBTYPE_SH7619
-	default "140" if CPU_SUBTYPE_SH7206
-	default "16"
-
-config SH_PCLK_FREQ
-	int "Peripheral clock frequency (in Hz)"
-	default "27000000" if CPU_SUBTYPE_SH7343
-	default "31250000" if CPU_SUBTYPE_SH7619
-	default "32000000" if CPU_SUBTYPE_SH7722
-	default "33333333" if CPU_SUBTYPE_SH7770 || \
-			      CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
-			      CPU_SUBTYPE_SH7206
-	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
-	default "66000000" if CPU_SUBTYPE_SH4_202
-	default "50000000"
-	help
-	  This option is used to specify the peripheral clock frequency.
-	  This is necessary for determining the reference clock value on
-	  platforms lacking an RTC.
-
-config SH_CLK_MD
-	int "CPU Mode Pin Setting"
-	depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
-	default 6 if CPU_SUBTYPE_SH7206
-	default 5 if CPU_SUBTYPE_SH7619
-	default 0
-	help
-	  MD2 - MD0 pin setting.
-
-source "kernel/time/Kconfig"
-
-endmenu
-
-menu "CPU Frequency scaling"
-
-source "drivers/cpufreq/Kconfig"
-
-config SH_CPU_FREQ
-	tristate "SuperH CPU Frequency driver"
-	depends on CPU_FREQ
-	select CPU_FREQ_TABLE
-	help
-	  This adds the cpufreq driver for SuperH. At present, only
-	  the SH-4 is supported.
-
-	  For details, take a look at <file:Documentation/cpu-freq>.
-
-	  If unsure, say N.
-
-endmenu
-
-source "arch/sh/drivers/Kconfig"
-
-endmenu
-
-config ISA_DMA_API
-	bool
-	depends on SH_MPC1211
-	default y
-
-menu "Kernel features"
-
-source kernel/Kconfig.hz
-
-config KEXEC
-	bool "kexec system call (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
-	help
-	  kexec is a system call that implements the ability to shutdown your
-	  current kernel, and to start another kernel.  It is like a reboot
-	  but it is independent of the system firmware.  And like a reboot
-	  you can start any kernel with it, not just Linux.
-
-	  The name comes from the similarity to the exec system call.
-
-	  It is an ongoing process to be certain the hardware in a machine
-	  is properly shutdown, so do not be surprised if this code does not
-	  initially work for you.  It may help to enable device hotplugging
-	  support.  As of this writing the exact hardware interface is
-	  strongly in flux, so no good recommendation can be made.
-
-config CRASH_DUMP
-	bool "kernel crash dumps (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
-	help
-	  Generate crash dump after being started by kexec.
-	  This should be normally only set in special crash dump kernels
-	  which are loaded in the main kernel with kexec-tools into
-	  a specially reserved region and then later executed after
-	  a crash by kdump/kexec. The crash dump kernel must be compiled
-	  to a memory address not used by the main kernel using
-	  MEMORY_START.
-
-	  For more details see Documentation/kdump/kdump.txt
-
-config SMP
-	bool "Symmetric multi-processing support"
-	depends on SYS_SUPPORTS_SMP
-	---help---
-	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
-
-	  If you say N here, the kernel will run on single and multiprocessor
-	  machines, but will use only one CPU of a multiprocessor machine. If
-	  you say Y here, the kernel will run on many, but not all,
-	  singleprocessor machines. On a singleprocessor machine, the kernel
-	  will run faster if you say N here.
-
-	  People using multiprocessor machines who say Y here should also say
-	  Y to "Enhanced Real Time Clock Support", below.
-
-	  See also the <file:Documentation/smp.txt>,
-	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
-	  at <http://www.tldp.org/docs.html#howto>.
-
-	  If you don't know what to do here, say N.
-
-config NR_CPUS
-	int "Maximum number of CPUs (2-32)"
-	range 2 32
-	depends on SMP
-	default "4" if CPU_SHX3
-	default "2"
-	help
-	  This allows you to specify the maximum number of CPUs which this
-	  kernel will support.  The maximum supported value is 32 and the
-	  minimum value which makes sense is 2.
-
-	  This is purely to save memory - each supported CPU adds
-	  approximately eight kilobytes to the kernel image.
-
-source "kernel/Kconfig.preempt"
-
-config GUSA
-	def_bool y
-	depends on !SMP
-	help
-	  This enables support for gUSA (general UserSpace Atomicity).
-	  This is the default implementation for both UP and non-ll/sc
-	  CPUs, and is used by the libc, amongst others.
-
-	  For additional information, design information can be found 
-	  in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
-
-	  This should only be disabled for special cases where alternate
-	  atomicity implementations exist.
-
-endmenu
-
-menu "Boot options"
-
-config ZERO_PAGE_OFFSET
-	hex "Zero page offset"
-	default "0x00004000" if SH_MPC1211 || SH_SH03
-	default "0x00010000" if PAGE_SIZE_64KB
-	default "0x00002000" if PAGE_SIZE_8KB
-	default "0x00001000"
-	help
-	  This sets the default offset of zero page.
-
-config BOOT_LINK_OFFSET
-	hex "Link address offset for booting"
-	default "0x00800000"
-	help
-	  This option allows you to set the link address offset of the zImage.
-	  This can be useful if you are on a board which has a small amount of
-	  memory.
-
-config UBC_WAKEUP
-	bool "Wakeup UBC on startup"
-	depends on CPU_SH4 && !CPU_SH4A
-	help
-	  Selecting this option will wakeup the User Break Controller (UBC) on
-	  startup. Although the UBC is left in an awake state when the processor
-	  comes up, some boot loaders misbehave by putting the UBC to sleep in a
-	  power saving state, which causes issues with things like ptrace().
-
-	  If unsure, say N.
-
-config CMDLINE_BOOL
-	bool "Default bootloader kernel arguments"
-
-config CMDLINE
-	string "Initial kernel command string"
-	depends on CMDLINE_BOOL
-	default "console=ttySC1,115200"
-
-endmenu
-
-menu "Bus options"
-
-# Even on SuperH devices which don't have an ISA bus,
-# this variable helps the PCMCIA modules handle
-# IRQ requesting properly -- Greg Banks.
-#
-# Though we're generally not interested in it when
-# we're not using PCMCIA, so we make it dependent on
-# PCMCIA outright. -- PFM.
-config ISA
-	def_bool y
-	depends on PCMCIA && HD6446X_SERIES
-	help
-	  Find out whether you have ISA slots on your motherboard.  ISA is the
-	  name of a bus system, i.e. the way the CPU talks to the other stuff
-	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
-	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
-	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
-
-config EISA
-	bool
-	---help---
-	  The Extended Industry Standard Architecture (EISA) bus was
-	  developed as an open alternative to the IBM MicroChannel bus.
-
-	  The EISA bus provided some of the features of the IBM MicroChannel
-	  bus while maintaining backward compatibility with cards made for
-	  the older ISA bus.  The EISA bus saw limited use between 1988 and
-	  1995 when it was made obsolete by the PCI bus.
-
-	  Say Y here if you are building a kernel for an EISA-based machine.
-
-	  Otherwise, say N.
-
-config MCA
-	bool
-	help
-	  MicroChannel Architecture is found in some IBM PS/2 machines and
-	  laptops.  It is a bus system similar to PCI or ISA. See
-	  <file:Documentation/mca.txt> (and especially the web page given
-	  there) before attempting to build an MCA bus kernel.
-
-config SBUS
-	bool
-
-config SUPERHYWAY
-	tristate "SuperHyway Bus support"
-	depends on CPU_SUBTYPE_SH4_202
-
-config MAPLE
-       bool "Maple Bus support"
-       depends on SH_DREAMCAST
-       help
-         The Maple Bus is SEGA's serial communication bus for peripherals
-         on the Dreamcast. Without this bus support you won't be able to
-         get your Dreamcast keyboard etc to work, so most users
-         probably want to say 'Y' here, unless you are only using the
-         Dreamcast with a serial line terminal or a remote network
-         connection.
-
-config CF_ENABLER
-	bool "Compact Flash Enabler support"
-	depends on SOLUTION_ENGINE || SH_SH03
-	---help---
-	  Compact Flash is a small, removable mass storage device introduced
-	  in 1994 originally as a PCMCIA device.  If you say `Y' here, you
-	  compile in support for Compact Flash devices directly connected to
-	  a SuperH processor.  A Compact Flash FAQ is available at
-	  <http://www.compactflash.org/faqs/faq.htm>.
-
-	  If your board has "Directly Connected" CompactFlash at area 5 or 6,
-	  you may want to enable this option.  Then, you can use CF as
-	  primary IDE drive (only tested for SanDisk).
-
-	  If in doubt, select 'N'.
-
-choice
-	prompt "Compact Flash Connection Area"
-	depends on CF_ENABLER
-	default CF_AREA6
-
-config CF_AREA5
-	bool "Area5"
-	help
-	  If your board has "Directly Connected" CompactFlash, You should
-	  select the area where your CF is connected to.
-
-	  - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
-	  - "Area6" if it is connected to Area 6 (0x18000000)
-
-	  "Area6" will work for most boards.
-
-config CF_AREA6
-	bool "Area6"
-
-endchoice
-
-config CF_BASE_ADDR
-	hex
-	depends on CF_ENABLER
-	default "0xb8000000" if CF_AREA6
-	default "0xb4000000" if CF_AREA5
-
-source "arch/sh/drivers/pci/Kconfig"
-
-source "drivers/pci/Kconfig"
-
-source "drivers/pcmcia/Kconfig"
-
-source "drivers/pci/hotplug/Kconfig"
-
-endmenu
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-menu "Power management options (EXPERIMENTAL)"
-depends on EXPERIMENTAL && SYS_SUPPORTS_PM
-
-source kernel/power/Kconfig
-
-endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "kernel/Kconfig.instrumentation"
-
-source "arch/sh/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
diff --git a/arch/sh/Kconfig.sh b/arch/sh/Kconfig.sh
new file mode 100644
index 000000000000..496d635f89b2
--- /dev/null
+++ b/arch/sh/Kconfig.sh
@@ -0,0 +1,767 @@
+#
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+#
+
+mainmenu "Linux/SuperH Kernel Configuration"
+
+config SUPERH
+	bool
+	default y
+	select EMBEDDED
+	help
+	  The SuperH is a RISC processor targeted for use in embedded systems
+	  and consumer electronics; it was also used in the Sega Dreamcast
+	  gaming console.  The SuperH port has a home page at
+	  <http://www.linux-sh.org/>.
+
+config RWSEM_GENERIC_SPINLOCK
+	bool
+	default y
+
+config RWSEM_XCHGADD_ALGORITHM
+	bool
+
+config GENERIC_BUG
+	def_bool y
+	depends on BUG
+
+config GENERIC_FIND_NEXT_BIT
+	bool
+	default y
+
+config GENERIC_HWEIGHT
+	bool
+	default y
+
+config GENERIC_HARDIRQS
+	bool
+	default y
+
+config GENERIC_IRQ_PROBE
+	bool
+	default y
+
+config GENERIC_CALIBRATE_DELAY
+	bool
+	default y
+
+config GENERIC_IOMAP
+	bool
+
+config GENERIC_TIME
+	def_bool n
+
+config GENERIC_CLOCKEVENTS
+	def_bool n
+
+config SYS_SUPPORTS_PM
+	bool
+
+config SYS_SUPPORTS_APM_EMULATION
+	bool
+	select SYS_SUPPORTS_PM
+
+config SYS_SUPPORTS_SMP
+	bool
+
+config SYS_SUPPORTS_NUMA
+	bool
+
+config SYS_SUPPORTS_PCI
+	bool
+
+config ARCH_MAY_HAVE_PC_FDC
+	bool
+
+config STACKTRACE_SUPPORT
+	bool
+	default y
+
+config LOCKDEP_SUPPORT
+	bool
+	default y
+
+config ARCH_HAS_ILOG2_U32
+	bool
+	default n
+
+config ARCH_HAS_ILOG2_U64
+	bool
+	default n
+
+config ARCH_NO_VIRT_TO_BUS
+	def_bool y
+
+source "init/Kconfig"
+
+menu "System type"
+
+source "arch/sh/mm/Kconfig"
+
+menu "Processor features"
+
+choice
+	prompt "Endianess selection" 
+	default CPU_LITTLE_ENDIAN
+	help
+	  Some SuperH machines can be configured for either little or big
+	  endian byte order. These modes require different kernels.
+
+config CPU_LITTLE_ENDIAN
+	bool "Little Endian"
+
+config CPU_BIG_ENDIAN
+	bool "Big Endian"
+
+endchoice
+
+config SH_FPU
+	bool "FPU support"
+	depends on CPU_HAS_FPU
+	default y
+	help
+	  Selecting this option will enable support for SH processors that
+	  have FPU units (ie, SH77xx).
+
+	  This option must be set in order to enable the FPU.
+
+config SH_FPU_EMU
+	bool "FPU emulation support"
+	depends on !SH_FPU && EXPERIMENTAL
+	default n
+	help
+	  Selecting this option will enable support for software FPU emulation.
+	  Most SH-3 users will want to say Y here, whereas most SH-4 users will
+	  want to say N.
+
+config SH_DSP
+	bool "DSP support"
+	depends on CPU_HAS_DSP
+	default y
+	help
+	  Selecting this option will enable support for SH processors that
+	  have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
+
+	  This option must be set in order to enable the DSP.
+
+config SH_ADC
+	bool "ADC support"
+	depends on CPU_SH3
+	default y
+	help
+	  Selecting this option will allow the Linux kernel to use SH3 on-chip
+	  ADC module.
+
+	  If unsure, say N.
+
+config SH_STORE_QUEUES
+	bool "Support for Store Queues"
+	depends on CPU_SH4
+	help
+	  Selecting this option will enable an in-kernel API for manipulating
+	  the store queues integrated in the SH-4 processors.
+
+config SPECULATIVE_EXECUTION
+	bool "Speculative subroutine return"
+	depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL
+	help
+	  This enables support for a speculative instruction fetch for
+	  subroutine return. There are various pitfalls associated with
+	  this, as outlined in the SH7780 hardware manual.
+
+	  If unsure, say N.
+
+config CPU_HAS_INTEVT
+	bool
+
+config CPU_HAS_MASKREG_IRQ
+	bool
+
+config CPU_HAS_IPR_IRQ
+	bool
+
+config CPU_HAS_SR_RB
+	bool
+	help
+	  This will enable the use of SR.RB register bank usage. Processors
+	  that are lacking this bit must have another method in place for
+	  accomplishing what is taken care of by the banked registers.
+
+	  See <file:Documentation/sh/register-banks.txt> for further
+	  information on SR.RB and register banking in the kernel in general.
+
+config CPU_HAS_PTEA
+	bool
+
+config CPU_HAS_DSP
+	bool
+
+config CPU_HAS_FPU
+	bool
+
+endmenu
+
+menu "Board support"
+
+config SOLUTION_ENGINE
+	bool
+
+config SH_SOLUTION_ENGINE
+	bool "SolutionEngine"
+	select SOLUTION_ENGINE
+	select CPU_HAS_IPR_IRQ
+	depends on CPU_SUBTYPE_SH7705 || CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7710 || \
+	  CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7750S || \
+	  CPU_SUBTYPE_SH7750R 
+	help
+	  Select SolutionEngine if configuring for a Hitachi SH7705, SH7709,
+	  SH7710, SH7712, SH7750, SH7750S or SH7750R evaluation board.
+
+config SH_7206_SOLUTION_ENGINE
+	bool "SolutionEngine7206"
+	select SOLUTION_ENGINE
+	depends on CPU_SUBTYPE_SH7206
+	help
+	  Select 7206 SolutionEngine if configuring for a Hitachi SH7206
+	  evaluation board.
+
+config SH_7619_SOLUTION_ENGINE
+	bool "SolutionEngine7619"
+	select SOLUTION_ENGINE
+	depends on CPU_SUBTYPE_SH7619
+	help
+	  Select 7619 SolutionEngine if configuring for a Hitachi SH7619
+	  evaluation board.
+	
+config SH_7722_SOLUTION_ENGINE
+	bool "SolutionEngine7722"
+	select SOLUTION_ENGINE
+	depends on CPU_SUBTYPE_SH7722
+	help
+	  Select 7722 SolutionEngine if configuring for a Hitachi SH772
+	  evaluation board.
+
+config SH_7751_SOLUTION_ENGINE
+	bool "SolutionEngine7751"
+	select SOLUTION_ENGINE
+	select CPU_HAS_IPR_IRQ
+	depends on CPU_SUBTYPE_SH7751
+	help
+	  Select 7751 SolutionEngine if configuring for a Hitachi SH7751
+	  evaluation board.
+	  
+config SH_7780_SOLUTION_ENGINE
+	bool "SolutionEngine7780"
+	select SOLUTION_ENGINE
+	select SYS_SUPPORTS_PCI
+	depends on CPU_SUBTYPE_SH7780
+	help
+	  Select 7780 SolutionEngine if configuring for a Renesas SH7780
+	  evaluation board.
+
+config SH_7343_SOLUTION_ENGINE
+	bool "SolutionEngine7343"
+	select SOLUTION_ENGINE
+	depends on CPU_SUBTYPE_SH7343
+	help
+	  Select 7343 SolutionEngine if configuring for a Hitachi
+	  SH7343 (SH-Mobile 3AS) evaluation board.
+
+config SH_7751_SYSTEMH
+	bool "SystemH7751R"
+	depends on CPU_SUBTYPE_SH7751R
+	help
+	  Select SystemH if you are configuring for a Renesas SystemH
+	  7751R evaluation board.
+
+config SH_HP6XX
+	bool "HP6XX"
+	select SYS_SUPPORTS_APM_EMULATION
+	select HD6446X_SERIES
+	depends on CPU_SUBTYPE_SH7709
+	help
+	  Select HP6XX if configuring for a HP jornada HP6xx.
+	  More information (hardware only) at
+	  <http://www.hp.com/jornada/>.
+
+config SH_DREAMCAST
+	bool "Dreamcast"
+	select SYS_SUPPORTS_PCI
+	depends on CPU_SUBTYPE_SH7091
+	help
+	  Select Dreamcast if configuring for a SEGA Dreamcast.
+	  More information at <http://www.linux-sh.org>
+
+config SH_MPC1211
+	bool "Interface MPC1211"
+	depends on CPU_SUBTYPE_SH7751 && BROKEN
+	help
+	  CTP/PCI-SH02 is a CPU module computer that is produced
+	  by Interface Corporation.
+	  More information at <http://www.interface.co.jp>
+
+config SH_SH03
+	bool "Interface CTP/PCI-SH03"
+	depends on CPU_SUBTYPE_SH7751
+	select CPU_HAS_IPR_IRQ
+	select SYS_SUPPORTS_PCI
+	help
+	  CTP/PCI-SH03 is a CPU module computer that is produced
+	  by Interface Corporation.
+	  More information at <http://www.interface.co.jp>
+
+config SH_SECUREEDGE5410
+	bool "SecureEdge5410"
+	depends on CPU_SUBTYPE_SH7751R
+	select CPU_HAS_IPR_IRQ
+	select SYS_SUPPORTS_PCI
+	help
+	  Select SecureEdge5410 if configuring for a SnapGear SH board.
+	  This includes both the OEM SecureEdge products as well as the
+	  SME product line.
+
+config SH_HS7751RVOIP
+	bool "HS7751RVOIP"
+	depends on CPU_SUBTYPE_SH7751R
+	help
+	  Select HS7751RVOIP if configuring for a Renesas Technology
+	  Sales VoIP board.
+
+config SH_7710VOIPGW
+	bool "SH7710-VOIP-GW"
+	depends on CPU_SUBTYPE_SH7710
+	help
+	  Select this option to build a kernel for the SH7710 based
+	  VOIP GW.
+
+config SH_RTS7751R2D
+	bool "RTS7751R2D"
+	depends on CPU_SUBTYPE_SH7751R
+	select SYS_SUPPORTS_PCI
+	help
+	  Select RTS7751R2D if configuring for a Renesas Technology
+	  Sales SH-Graphics board.
+
+config SH_HIGHLANDER
+	bool "Highlander"
+	depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
+	select SYS_SUPPORTS_PCI
+
+config SH_EDOSK7705
+	bool "EDOSK7705"
+	depends on CPU_SUBTYPE_SH7705
+
+config SH_SH4202_MICRODEV
+	bool "SH4-202 MicroDev"
+	depends on CPU_SUBTYPE_SH4_202
+	help
+	  Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
+	  with an SH4-202 CPU.
+
+config SH_LANDISK
+	bool "LANDISK"
+	depends on CPU_SUBTYPE_SH7751R
+	select SYS_SUPPORTS_PCI
+	help
+	  I-O DATA DEVICE, INC. "LANDISK Series" support.
+
+config SH_TITAN
+	bool "TITAN"
+	depends on CPU_SUBTYPE_SH7751R
+	select CPU_HAS_IPR_IRQ
+	select SYS_SUPPORTS_PCI
+	help
+	  Select Titan if you are configuring for a Nimble Microsystems
+	  NetEngine NP51R.
+
+config SH_SHMIN
+	bool "SHMIN"
+	depends on CPU_SUBTYPE_SH7706
+	select CPU_HAS_IPR_IRQ
+	help
+	  Select SHMIN if configuring for the SHMIN board.
+
+config SH_LBOX_RE2
+	bool "L-BOX RE2"
+	depends on CPU_SUBTYPE_SH7751R
+	select SYS_SUPPORTS_PCI
+	help
+	  Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
+
+config SH_X3PROTO
+	bool "SH-X3 Prototype board"
+	depends on CPU_SUBTYPE_SHX3
+
+config SH_MAGIC_PANEL_R2
+	bool "Magic Panel R2"
+	depends on CPU_SUBTYPE_SH7720
+	help
+	  Select Magic Panel R2 if configuring for Magic Panel R2.
+
+endmenu
+
+source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
+source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
+source "arch/sh/boards/renesas/r7780rp/Kconfig"
+source "arch/sh/boards/magicpanelr2/Kconfig"
+
+menu "Timer and clock configuration"
+
+config SH_TMU
+	bool "TMU timer support"
+	depends on CPU_SH3 || CPU_SH4
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
+	default y
+	help
+	  This enables the use of the TMU as the system timer.
+
+config SH_CMT
+	bool "CMT timer support"
+	depends on CPU_SH2
+	default y
+	help
+	  This enables the use of the CMT as the system timer.
+
+config SH_MTU2
+	bool "MTU2 timer support"
+	depends on CPU_SH2A
+	default n
+	help
+	  This enables the use of the MTU2 as the system timer.
+
+config SH_TIMER_IRQ
+	int
+	default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
+	default "86" if CPU_SUBTYPE_SH7619
+	default "140" if CPU_SUBTYPE_SH7206
+	default "16"
+
+config SH_PCLK_FREQ
+	int "Peripheral clock frequency (in Hz)"
+	default "27000000" if CPU_SUBTYPE_SH7343
+	default "31250000" if CPU_SUBTYPE_SH7619
+	default "32000000" if CPU_SUBTYPE_SH7722
+	default "33333333" if CPU_SUBTYPE_SH7770 || \
+			      CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
+			      CPU_SUBTYPE_SH7206
+	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
+	default "66000000" if CPU_SUBTYPE_SH4_202
+	default "50000000"
+	help
+	  This option is used to specify the peripheral clock frequency.
+	  This is necessary for determining the reference clock value on
+	  platforms lacking an RTC.
+
+config SH_CLK_MD
+	int "CPU Mode Pin Setting"
+	depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
+	default 6 if CPU_SUBTYPE_SH7206
+	default 5 if CPU_SUBTYPE_SH7619
+	default 0
+	help
+	  MD2 - MD0 pin setting.
+
+source "kernel/time/Kconfig"
+
+endmenu
+
+menu "CPU Frequency scaling"
+
+source "drivers/cpufreq/Kconfig"
+
+config SH_CPU_FREQ
+	tristate "SuperH CPU Frequency driver"
+	depends on CPU_FREQ
+	select CPU_FREQ_TABLE
+	help
+	  This adds the cpufreq driver for SuperH. At present, only
+	  the SH-4 is supported.
+
+	  For details, take a look at <file:Documentation/cpu-freq>.
+
+	  If unsure, say N.
+
+endmenu
+
+source "arch/sh/drivers/Kconfig"
+
+endmenu
+
+config ISA_DMA_API
+	bool
+	depends on SH_MPC1211
+	default y
+
+menu "Kernel features"
+
+source kernel/Kconfig.hz
+
+config KEXEC
+	bool "kexec system call (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	help
+	  kexec is a system call that implements the ability to shutdown your
+	  current kernel, and to start another kernel.  It is like a reboot
+	  but it is independent of the system firmware.  And like a reboot
+	  you can start any kernel with it, not just Linux.
+
+	  The name comes from the similarity to the exec system call.
+
+	  It is an ongoing process to be certain the hardware in a machine
+	  is properly shutdown, so do not be surprised if this code does not
+	  initially work for you.  It may help to enable device hotplugging
+	  support.  As of this writing the exact hardware interface is
+	  strongly in flux, so no good recommendation can be made.
+
+config CRASH_DUMP
+	bool "kernel crash dumps (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	help
+	  Generate crash dump after being started by kexec.
+	  This should be normally only set in special crash dump kernels
+	  which are loaded in the main kernel with kexec-tools into
+	  a specially reserved region and then later executed after
+	  a crash by kdump/kexec. The crash dump kernel must be compiled
+	  to a memory address not used by the main kernel using
+	  MEMORY_START.
+
+	  For more details see Documentation/kdump/kdump.txt
+
+config SMP
+	bool "Symmetric multi-processing support"
+	depends on SYS_SUPPORTS_SMP
+	---help---
+	  This enables support for systems with more than one CPU. If you have
+	  a system with only one CPU, like most personal computers, say N. If
+	  you have a system with more than one CPU, say Y.
+
+	  If you say N here, the kernel will run on single and multiprocessor
+	  machines, but will use only one CPU of a multiprocessor machine. If
+	  you say Y here, the kernel will run on many, but not all,
+	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  will run faster if you say N here.
+
+	  People using multiprocessor machines who say Y here should also say
+	  Y to "Enhanced Real Time Clock Support", below.
+
+	  See also the <file:Documentation/smp.txt>,
+	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
+	  at <http://www.tldp.org/docs.html#howto>.
+
+	  If you don't know what to do here, say N.
+
+config NR_CPUS
+	int "Maximum number of CPUs (2-32)"
+	range 2 32
+	depends on SMP
+	default "4" if CPU_SHX3
+	default "2"
+	help
+	  This allows you to specify the maximum number of CPUs which this
+	  kernel will support.  The maximum supported value is 32 and the
+	  minimum value which makes sense is 2.
+
+	  This is purely to save memory - each supported CPU adds
+	  approximately eight kilobytes to the kernel image.
+
+source "kernel/Kconfig.preempt"
+
+config GUSA
+	def_bool y
+	depends on !SMP
+	help
+	  This enables support for gUSA (general UserSpace Atomicity).
+	  This is the default implementation for both UP and non-ll/sc
+	  CPUs, and is used by the libc, amongst others.
+
+	  For additional information, design information can be found 
+	  in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
+
+	  This should only be disabled for special cases where alternate
+	  atomicity implementations exist.
+
+endmenu
+
+menu "Boot options"
+
+config ZERO_PAGE_OFFSET
+	hex "Zero page offset"
+	default "0x00004000" if SH_MPC1211 || SH_SH03
+	default "0x00010000" if PAGE_SIZE_64KB
+	default "0x00002000" if PAGE_SIZE_8KB
+	default "0x00001000"
+	help
+	  This sets the default offset of zero page.
+
+config BOOT_LINK_OFFSET
+	hex "Link address offset for booting"
+	default "0x00800000"
+	help
+	  This option allows you to set the link address offset of the zImage.
+	  This can be useful if you are on a board which has a small amount of
+	  memory.
+
+config UBC_WAKEUP
+	bool "Wakeup UBC on startup"
+	depends on CPU_SH4 && !CPU_SH4A
+	help
+	  Selecting this option will wakeup the User Break Controller (UBC) on
+	  startup. Although the UBC is left in an awake state when the processor
+	  comes up, some boot loaders misbehave by putting the UBC to sleep in a
+	  power saving state, which causes issues with things like ptrace().
+
+	  If unsure, say N.
+
+config CMDLINE_BOOL
+	bool "Default bootloader kernel arguments"
+
+config CMDLINE
+	string "Initial kernel command string"
+	depends on CMDLINE_BOOL
+	default "console=ttySC1,115200"
+
+endmenu
+
+menu "Bus options"
+
+# Even on SuperH devices which don't have an ISA bus,
+# this variable helps the PCMCIA modules handle
+# IRQ requesting properly -- Greg Banks.
+#
+# Though we're generally not interested in it when
+# we're not using PCMCIA, so we make it dependent on
+# PCMCIA outright. -- PFM.
+config ISA
+	def_bool y
+	depends on PCMCIA && HD6446X_SERIES
+	help
+	  Find out whether you have ISA slots on your motherboard.  ISA is the
+	  name of a bus system, i.e. the way the CPU talks to the other stuff
+	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
+	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
+	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
+
+config EISA
+	bool
+	---help---
+	  The Extended Industry Standard Architecture (EISA) bus was
+	  developed as an open alternative to the IBM MicroChannel bus.
+
+	  The EISA bus provided some of the features of the IBM MicroChannel
+	  bus while maintaining backward compatibility with cards made for
+	  the older ISA bus.  The EISA bus saw limited use between 1988 and
+	  1995 when it was made obsolete by the PCI bus.
+
+	  Say Y here if you are building a kernel for an EISA-based machine.
+
+	  Otherwise, say N.
+
+config MCA
+	bool
+	help
+	  MicroChannel Architecture is found in some IBM PS/2 machines and
+	  laptops.  It is a bus system similar to PCI or ISA. See
+	  <file:Documentation/mca.txt> (and especially the web page given
+	  there) before attempting to build an MCA bus kernel.
+
+config SBUS
+	bool
+
+config SUPERHYWAY
+	tristate "SuperHyway Bus support"
+	depends on CPU_SUBTYPE_SH4_202
+
+config MAPLE
+       bool "Maple Bus support"
+       depends on SH_DREAMCAST
+       help
+         The Maple Bus is SEGA's serial communication bus for peripherals
+         on the Dreamcast. Without this bus support you won't be able to
+         get your Dreamcast keyboard etc to work, so most users
+         probably want to say 'Y' here, unless you are only using the
+         Dreamcast with a serial line terminal or a remote network
+         connection.
+
+config CF_ENABLER
+	bool "Compact Flash Enabler support"
+	depends on SOLUTION_ENGINE || SH_SH03
+	---help---
+	  Compact Flash is a small, removable mass storage device introduced
+	  in 1994 originally as a PCMCIA device.  If you say `Y' here, you
+	  compile in support for Compact Flash devices directly connected to
+	  a SuperH processor.  A Compact Flash FAQ is available at
+	  <http://www.compactflash.org/faqs/faq.htm>.
+
+	  If your board has "Directly Connected" CompactFlash at area 5 or 6,
+	  you may want to enable this option.  Then, you can use CF as
+	  primary IDE drive (only tested for SanDisk).
+
+	  If in doubt, select 'N'.
+
+choice
+	prompt "Compact Flash Connection Area"
+	depends on CF_ENABLER
+	default CF_AREA6
+
+config CF_AREA5
+	bool "Area5"
+	help
+	  If your board has "Directly Connected" CompactFlash, You should
+	  select the area where your CF is connected to.
+
+	  - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
+	  - "Area6" if it is connected to Area 6 (0x18000000)
+
+	  "Area6" will work for most boards.
+
+config CF_AREA6
+	bool "Area6"
+
+endchoice
+
+config CF_BASE_ADDR
+	hex
+	depends on CF_ENABLER
+	default "0xb8000000" if CF_AREA6
+	default "0xb4000000" if CF_AREA5
+
+source "arch/sh/drivers/pci/Kconfig"
+
+source "drivers/pci/Kconfig"
+
+source "drivers/pcmcia/Kconfig"
+
+source "drivers/pci/hotplug/Kconfig"
+
+endmenu
+
+menu "Executable file formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+menu "Power management options (EXPERIMENTAL)"
+depends on EXPERIMENTAL && SYS_SUPPORTS_PM
+
+source kernel/power/Kconfig
+
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "kernel/Kconfig.instrumentation"
+
+source "arch/sh/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
-- 
cgit v1.2.3-59-g8ed1b


From b5f42db0a782d409e5fe0efb6e1387e45774c70b Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 8 Nov 2007 18:38:14 +0900
Subject: sh: Move CPU subtypes to Kconfig.sh.

We intend to share the mm options, so move the SH-only subtypes
up a level.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig.sh | 190 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 arch/sh/mm/Kconfig | 190 -----------------------------------------------------
 2 files changed, 190 insertions(+), 190 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/Kconfig.sh b/arch/sh/Kconfig.sh
index 496d635f89b2..50d8981b8d11 100644
--- a/arch/sh/Kconfig.sh
+++ b/arch/sh/Kconfig.sh
@@ -97,6 +97,196 @@ source "init/Kconfig"
 
 menu "System type"
 
+#
+# Processor families
+#
+config CPU_SH2
+	bool
+
+config CPU_SH2A
+	bool
+	select CPU_SH2
+
+config CPU_SH3
+	bool
+	select CPU_HAS_INTEVT
+	select CPU_HAS_SR_RB
+
+config CPU_SH4
+	bool
+	select CPU_HAS_INTEVT
+	select CPU_HAS_SR_RB
+	select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
+	select CPU_HAS_FPU if !CPU_SH4AL_DSP
+
+config CPU_SH4A
+	bool
+	select CPU_SH4
+
+config CPU_SH4AL_DSP
+	bool
+	select CPU_SH4A
+	select CPU_HAS_DSP
+
+config CPU_SHX2
+	bool
+
+config CPU_SHX3
+	bool
+
+choice
+	prompt "Processor sub-type selection"
+
+#
+# Processor subtypes
+#
+
+# SH-2 Processor Support
+
+config CPU_SUBTYPE_SH7619
+	bool "Support SH7619 processor"
+	select CPU_SH2
+
+# SH-2A Processor Support
+
+config CPU_SUBTYPE_SH7206
+	bool "Support SH7206 processor"
+	select CPU_SH2A
+
+# SH-3 Processor Support
+
+config CPU_SUBTYPE_SH7705
+	bool "Support SH7705 processor"
+	select CPU_SH3
+
+config CPU_SUBTYPE_SH7706
+	bool "Support SH7706 processor"
+	select CPU_SH3
+	help
+	  Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
+
+config CPU_SUBTYPE_SH7707
+	bool "Support SH7707 processor"
+	select CPU_SH3
+	help
+	  Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
+
+config CPU_SUBTYPE_SH7708
+	bool "Support SH7708 processor"
+	select CPU_SH3
+	help
+	  Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
+	  if you have a 100 Mhz SH-3 HD6417708R CPU.
+
+config CPU_SUBTYPE_SH7709
+	bool "Support SH7709 processor"
+	select CPU_SH3
+	help
+	  Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.
+
+config CPU_SUBTYPE_SH7710
+	bool "Support SH7710 processor"
+	select CPU_SH3
+	select CPU_HAS_DSP
+	help
+	  Select SH7710 if you have a SH3-DSP SH7710 CPU.
+
+config CPU_SUBTYPE_SH7712
+	bool "Support SH7712 processor"
+	select CPU_SH3
+	select CPU_HAS_DSP
+	help
+	  Select SH7712 if you have a SH3-DSP SH7712 CPU.
+
+config CPU_SUBTYPE_SH7720
+	bool "Support SH7720 processor"
+	select CPU_SH3
+	select CPU_HAS_DSP
+	help
+	  Select SH7720 if you have a SH3-DSP SH7720 CPU.
+
+# SH-4 Processor Support
+
+config CPU_SUBTYPE_SH7750
+	bool "Support SH7750 processor"
+	select CPU_SH4
+	help
+	  Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
+
+config CPU_SUBTYPE_SH7091
+	bool "Support SH7091 processor"
+	select CPU_SH4
+	help
+	  Select SH7091 if you have an SH-4 based Sega device (such as
+	  the Dreamcast, Naomi, and Naomi 2).
+
+config CPU_SUBTYPE_SH7750R
+	bool "Support SH7750R processor"
+	select CPU_SH4
+
+config CPU_SUBTYPE_SH7750S
+	bool "Support SH7750S processor"
+	select CPU_SH4
+
+config CPU_SUBTYPE_SH7751
+	bool "Support SH7751 processor"
+	select CPU_SH4
+	help
+	  Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
+	  or if you have a HD6417751R CPU.
+
+config CPU_SUBTYPE_SH7751R
+	bool "Support SH7751R processor"
+	select CPU_SH4
+
+config CPU_SUBTYPE_SH7760
+	bool "Support SH7760 processor"
+	select CPU_SH4
+
+config CPU_SUBTYPE_SH4_202
+	bool "Support SH4-202 processor"
+	select CPU_SH4
+
+# SH-4A Processor Support
+
+config CPU_SUBTYPE_SH7770
+	bool "Support SH7770 processor"
+	select CPU_SH4A
+
+config CPU_SUBTYPE_SH7780
+	bool "Support SH7780 processor"
+	select CPU_SH4A
+
+config CPU_SUBTYPE_SH7785
+	bool "Support SH7785 processor"
+	select CPU_SH4A
+	select CPU_SHX2
+	select ARCH_SPARSEMEM_ENABLE
+	select SYS_SUPPORTS_NUMA
+
+config CPU_SUBTYPE_SHX3
+	bool "Support SH-X3 processor"
+	select CPU_SH4A
+	select CPU_SHX3
+	select ARCH_SPARSEMEM_ENABLE
+	select SYS_SUPPORTS_NUMA
+	select SYS_SUPPORTS_SMP
+
+# SH4AL-DSP Processor Support
+
+config CPU_SUBTYPE_SH7343
+	bool "Support SH7343 processor"
+	select CPU_SH4AL_DSP
+
+config CPU_SUBTYPE_SH7722
+	bool "Support SH7722 processor"
+	select CPU_SH4AL_DSP
+	select CPU_SHX2
+	select ARCH_SPARSEMEM_ENABLE
+	select SYS_SUPPORTS_NUMA
+
+endchoice
+
 source "arch/sh/mm/Kconfig"
 
 menu "Processor features"
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 1265f204f7d1..998c5c86346f 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -1,193 +1,3 @@
-#
-# Processor families
-#
-config CPU_SH2
-	bool
-
-config CPU_SH2A
-	bool
-	select CPU_SH2
-
-config CPU_SH3
-	bool
-	select CPU_HAS_INTEVT
-	select CPU_HAS_SR_RB
-
-config CPU_SH4
-	bool
-	select CPU_HAS_INTEVT
-	select CPU_HAS_SR_RB
-	select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
-	select CPU_HAS_FPU if !CPU_SH4AL_DSP
-
-config CPU_SH4A
-	bool
-	select CPU_SH4
-
-config CPU_SH4AL_DSP
-	bool
-	select CPU_SH4A
-	select CPU_HAS_DSP
-
-config CPU_SHX2
-	bool
-
-config CPU_SHX3
-	bool
-
-choice
-	prompt "Processor sub-type selection"
-
-#
-# Processor subtypes
-#
-
-# SH-2 Processor Support
-
-config CPU_SUBTYPE_SH7619
-	bool "Support SH7619 processor"
-	select CPU_SH2
-
-# SH-2A Processor Support
-
-config CPU_SUBTYPE_SH7206
-	bool "Support SH7206 processor"
-	select CPU_SH2A
-
-# SH-3 Processor Support
-
-config CPU_SUBTYPE_SH7705
-	bool "Support SH7705 processor"
-	select CPU_SH3
-
-config CPU_SUBTYPE_SH7706
-	bool "Support SH7706 processor"
-	select CPU_SH3
-	help
-	  Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
-
-config CPU_SUBTYPE_SH7707
-	bool "Support SH7707 processor"
-	select CPU_SH3
-	help
-	  Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
-
-config CPU_SUBTYPE_SH7708
-	bool "Support SH7708 processor"
-	select CPU_SH3
-	help
-	  Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
-	  if you have a 100 Mhz SH-3 HD6417708R CPU.
-
-config CPU_SUBTYPE_SH7709
-	bool "Support SH7709 processor"
-	select CPU_SH3
-	help
-	  Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.
-
-config CPU_SUBTYPE_SH7710
-	bool "Support SH7710 processor"
-	select CPU_SH3
-	select CPU_HAS_DSP
-	help
-	  Select SH7710 if you have a SH3-DSP SH7710 CPU.
-
-config CPU_SUBTYPE_SH7712
-	bool "Support SH7712 processor"
-	select CPU_SH3
-	select CPU_HAS_DSP
-	help
-	  Select SH7712 if you have a SH3-DSP SH7712 CPU.
-
-config CPU_SUBTYPE_SH7720
-	bool "Support SH7720 processor"
-	select CPU_SH3
-	select CPU_HAS_DSP
-	help
-	  Select SH7720 if you have a SH3-DSP SH7720 CPU.
-
-# SH-4 Processor Support
-
-config CPU_SUBTYPE_SH7750
-	bool "Support SH7750 processor"
-	select CPU_SH4
-	help
-	  Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
-
-config CPU_SUBTYPE_SH7091
-	bool "Support SH7091 processor"
-	select CPU_SH4
-	help
-	  Select SH7091 if you have an SH-4 based Sega device (such as
-	  the Dreamcast, Naomi, and Naomi 2).
-
-config CPU_SUBTYPE_SH7750R
-	bool "Support SH7750R processor"
-	select CPU_SH4
-
-config CPU_SUBTYPE_SH7750S
-	bool "Support SH7750S processor"
-	select CPU_SH4
-
-config CPU_SUBTYPE_SH7751
-	bool "Support SH7751 processor"
-	select CPU_SH4
-	help
-	  Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
-	  or if you have a HD6417751R CPU.
-
-config CPU_SUBTYPE_SH7751R
-	bool "Support SH7751R processor"
-	select CPU_SH4
-
-config CPU_SUBTYPE_SH7760
-	bool "Support SH7760 processor"
-	select CPU_SH4
-
-config CPU_SUBTYPE_SH4_202
-	bool "Support SH4-202 processor"
-	select CPU_SH4
-
-# SH-4A Processor Support
-
-config CPU_SUBTYPE_SH7770
-	bool "Support SH7770 processor"
-	select CPU_SH4A
-
-config CPU_SUBTYPE_SH7780
-	bool "Support SH7780 processor"
-	select CPU_SH4A
-
-config CPU_SUBTYPE_SH7785
-	bool "Support SH7785 processor"
-	select CPU_SH4A
-	select CPU_SHX2
-	select ARCH_SPARSEMEM_ENABLE
-	select SYS_SUPPORTS_NUMA
-
-config CPU_SUBTYPE_SHX3
-	bool "Support SH-X3 processor"
-	select CPU_SH4A
-	select CPU_SHX3
-	select ARCH_SPARSEMEM_ENABLE
-	select SYS_SUPPORTS_NUMA
-	select SYS_SUPPORTS_SMP
-
-# SH4AL-DSP Processor Support
-
-config CPU_SUBTYPE_SH7343
-	bool "Support SH7343 processor"
-	select CPU_SH4AL_DSP
-
-config CPU_SUBTYPE_SH7722
-	bool "Support SH7722 processor"
-	select CPU_SH4AL_DSP
-	select CPU_SHX2
-	select ARCH_SPARSEMEM_ENABLE
-	select SYS_SUPPORTS_NUMA
-
-endchoice
-
 menu "Memory management options"
 
 config QUICKLIST
-- 
cgit v1.2.3-59-g8ed1b


From 39d28a2dbe3886d84335f69da4c18972a31a217d Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 8 Nov 2007 18:39:33 +0900
Subject: sh: Add a SUPERH32 config symbol.

We need to differentiate from SUPERH64, so add a SUPERH32 for
regular sh.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig.sh | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch')

diff --git a/arch/sh/Kconfig.sh b/arch/sh/Kconfig.sh
index 50d8981b8d11..e6721b8e9dc1 100644
--- a/arch/sh/Kconfig.sh
+++ b/arch/sh/Kconfig.sh
@@ -15,6 +15,9 @@ config SUPERH
 	  gaming console.  The SuperH port has a home page at
 	  <http://www.linux-sh.org/>.
 
+config SUPERH32
+	def_bool y
+
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
-- 
cgit v1.2.3-59-g8ed1b


From 2c6deb5ea414c26483578d41d8537d54dd2d282f Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 8 Nov 2007 18:46:51 +0900
Subject: sh: Move the sh64 Kconfig to arch/sh/Kconfig.sh64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig.sh64 | 295 +++++++++++++++++++++++++++++++++++++++++++++++++++
 arch/sh64/Kconfig    | 295 ---------------------------------------------------
 2 files changed, 295 insertions(+), 295 deletions(-)
 create mode 100644 arch/sh/Kconfig.sh64
 delete mode 100644 arch/sh64/Kconfig

(limited to 'arch')

diff --git a/arch/sh/Kconfig.sh64 b/arch/sh/Kconfig.sh64
new file mode 100644
index 000000000000..6884d5a518ad
--- /dev/null
+++ b/arch/sh/Kconfig.sh64
@@ -0,0 +1,295 @@
+#
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+#
+
+mainmenu "Linux/SH64 Kernel Configuration"
+
+config SUPERH
+	bool
+	default y
+
+config SUPERH64
+	bool
+	default y
+
+config MMU
+	bool
+	default y
+
+config QUICKLIST
+	def_bool y
+
+config RWSEM_GENERIC_SPINLOCK
+	bool
+	default y
+
+config GENERIC_FIND_NEXT_BIT
+	bool
+	default y
+
+config GENERIC_HWEIGHT
+	bool
+	default y
+
+config GENERIC_CALIBRATE_DELAY
+	bool
+	default y
+
+config GENERIC_HARDIRQS
+	bool
+	default y
+
+config GENERIC_IRQ_PROBE
+	bool
+	default y
+
+config RWSEM_XCHGADD_ALGORITHM
+	bool
+
+config ARCH_HAS_ILOG2_U32
+	bool
+	default n
+
+config ARCH_HAS_ILOG2_U64
+	bool
+	default n
+
+config ARCH_NO_VIRT_TO_BUS
+	def_bool y
+
+source init/Kconfig
+
+menu "System type"
+
+choice
+	prompt "SuperH system type"
+	default SH_SIMULATOR
+
+config SH_SIMULATOR
+	bool "Simulator"
+
+config SH_CAYMAN
+	bool "Cayman"
+
+config SH_HARP
+	bool "ST50-Harp"
+
+endchoice
+
+choice
+	prompt "Processor family"
+	default CPU_SH5
+
+config CPU_SH5
+	bool "SH-5"
+
+endchoice
+
+choice
+	prompt "Processor type"
+
+config CPU_SUBTYPE_SH5_101
+	bool "SH5-101"
+	depends on CPU_SH5
+
+config CPU_SUBTYPE_SH5_103
+	bool "SH5-103"
+	depends on CPU_SH5
+
+endchoice
+
+choice
+	prompt "Endianness"
+	default LITTLE_ENDIAN
+
+config LITTLE_ENDIAN
+	bool "Little-Endian"
+
+config BIG_ENDIAN
+	bool "Big-Endian"
+
+endchoice
+
+config SH_FPU
+	bool "FPU support"
+	default y
+
+config SH64_FPU_DENORM_FLUSH
+	depends on SH_FPU
+	bool "Flush floating point denorms to zero"
+
+choice
+	prompt "Page table levels"
+	default SH64_PGTABLE_2_LEVEL
+
+config SH64_PGTABLE_2_LEVEL
+	bool "2"
+
+config SH64_PGTABLE_3_LEVEL
+	bool "3"
+
+endchoice
+
+choice
+	prompt "HugeTLB page size"
+	depends on HUGETLB_PAGE && MMU
+	default HUGETLB_PAGE_SIZE_64K
+
+config HUGETLB_PAGE_SIZE_64K
+	bool "64K"
+
+config HUGETLB_PAGE_SIZE_1MB
+	bool "1MB"
+
+config HUGETLB_PAGE_SIZE_512MB
+	bool "512MB"
+
+endchoice
+
+config SH64_USER_MISALIGNED_FIXUP
+	bool "Fixup misaligned loads/stores occurring in user mode"
+
+comment "Memory options"
+
+config CACHED_MEMORY_OFFSET
+	hex "Cached Area Offset"
+	default "20000000"
+
+config MEMORY_START
+	hex "Physical memory start address"
+	default "80000000"
+
+config MEMORY_SIZE_IN_MB
+	int "Memory size (in MB)"
+	default "8" if SH_SIMULATOR
+	default "64"
+
+comment "Cache options"
+
+choice
+	prompt "DCache mode"
+	default DCACHE_DISABLED if SH_SIMULATOR
+	default DCACHE_WRITE_BACK
+
+config DCACHE_WRITE_BACK
+	bool "Write-back"
+	depends on !SH_SIMULATOR
+
+config DCACHE_WRITE_THROUGH
+	bool "Write-through"
+	depends on !SH_SIMULATOR
+
+config DCACHE_DISABLED
+	bool "Disabled"
+
+endchoice
+
+config ICACHE_DISABLED
+	bool "ICache Disabling"
+
+config PCIDEVICE_MEMORY_START
+	hex
+	default "C0000000"
+
+config DEVICE_MEMORY_START
+	hex
+	default "E0000000"
+
+config FLASH_MEMORY_START
+	hex "Flash memory/on-chip devices start address"
+	default "00000000"
+
+config PCI_BLOCK_START
+	hex "PCI block start address"
+	default "40000000"
+
+comment "CPU Subtype specific options"
+
+config SH64_ID2815_WORKAROUND
+	bool "Include workaround for SH5-101 cut2 silicon defect ID2815"
+
+comment "Misc options"
+
+config HEARTBEAT
+	bool "Heartbeat LED"
+	depends on SH_CAYMAN
+
+config HDSP253_LED
+	bool "Support for HDSP-253 LED"
+	depends on SH_CAYMAN
+
+config SH_DMA
+	tristate "DMA controller (DMAC) support"
+
+config PREEMPT
+	bool "Preemptible Kernel (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+
+source "mm/Kconfig"
+
+endmenu
+
+menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
+
+config ISA
+	bool
+
+config SBUS
+	bool
+
+config PCI
+	bool "PCI support"
+	depends on SH_CAYMAN
+	help
+	  Find out whether you have a PCI motherboard. PCI is the name of a
+	  bus system, i.e. the way the CPU talks to the other stuff inside
+	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
+	  VESA. If you have PCI, say Y, otherwise N.
+
+	  The PCI-HOWTO, available from
+	  <http://www.tldp.org/docs.html#howto>, contains valuable
+	  information about which PCI hardware does work under Linux and which
+	  doesn't.
+
+config SH_PCIDMA_NONCOHERENT
+	bool "Cache and PCI noncoherent"
+	depends on PCI
+	default y
+	help
+	  Enable this option if your platform does not have a CPU cache which
+	  remains coherent with PCI DMA. It is safest to say 'Y', although you
+	  will see better performance if you can say 'N', because the PCI DMA
+	  code will not have to flush the CPU's caches. If you have a PCI host
+	  bridge integrated with your SH CPU, refer carefully to the chip specs
+	  to see if you can say 'N' here. Otherwise, leave it as 'Y'.
+
+source "drivers/pci/Kconfig"
+
+source "drivers/pcmcia/Kconfig"
+
+source "drivers/pci/hotplug/Kconfig"
+
+endmenu
+
+menu "Executable file formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "kernel/Kconfig.instrumentation"
+
+source "arch/sh64/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
diff --git a/arch/sh64/Kconfig b/arch/sh64/Kconfig
deleted file mode 100644
index 6884d5a518ad..000000000000
--- a/arch/sh64/Kconfig
+++ /dev/null
@@ -1,295 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/kconfig-language.txt.
-#
-
-mainmenu "Linux/SH64 Kernel Configuration"
-
-config SUPERH
-	bool
-	default y
-
-config SUPERH64
-	bool
-	default y
-
-config MMU
-	bool
-	default y
-
-config QUICKLIST
-	def_bool y
-
-config RWSEM_GENERIC_SPINLOCK
-	bool
-	default y
-
-config GENERIC_FIND_NEXT_BIT
-	bool
-	default y
-
-config GENERIC_HWEIGHT
-	bool
-	default y
-
-config GENERIC_CALIBRATE_DELAY
-	bool
-	default y
-
-config GENERIC_HARDIRQS
-	bool
-	default y
-
-config GENERIC_IRQ_PROBE
-	bool
-	default y
-
-config RWSEM_XCHGADD_ALGORITHM
-	bool
-
-config ARCH_HAS_ILOG2_U32
-	bool
-	default n
-
-config ARCH_HAS_ILOG2_U64
-	bool
-	default n
-
-config ARCH_NO_VIRT_TO_BUS
-	def_bool y
-
-source init/Kconfig
-
-menu "System type"
-
-choice
-	prompt "SuperH system type"
-	default SH_SIMULATOR
-
-config SH_SIMULATOR
-	bool "Simulator"
-
-config SH_CAYMAN
-	bool "Cayman"
-
-config SH_HARP
-	bool "ST50-Harp"
-
-endchoice
-
-choice
-	prompt "Processor family"
-	default CPU_SH5
-
-config CPU_SH5
-	bool "SH-5"
-
-endchoice
-
-choice
-	prompt "Processor type"
-
-config CPU_SUBTYPE_SH5_101
-	bool "SH5-101"
-	depends on CPU_SH5
-
-config CPU_SUBTYPE_SH5_103
-	bool "SH5-103"
-	depends on CPU_SH5
-
-endchoice
-
-choice
-	prompt "Endianness"
-	default LITTLE_ENDIAN
-
-config LITTLE_ENDIAN
-	bool "Little-Endian"
-
-config BIG_ENDIAN
-	bool "Big-Endian"
-
-endchoice
-
-config SH_FPU
-	bool "FPU support"
-	default y
-
-config SH64_FPU_DENORM_FLUSH
-	depends on SH_FPU
-	bool "Flush floating point denorms to zero"
-
-choice
-	prompt "Page table levels"
-	default SH64_PGTABLE_2_LEVEL
-
-config SH64_PGTABLE_2_LEVEL
-	bool "2"
-
-config SH64_PGTABLE_3_LEVEL
-	bool "3"
-
-endchoice
-
-choice
-	prompt "HugeTLB page size"
-	depends on HUGETLB_PAGE && MMU
-	default HUGETLB_PAGE_SIZE_64K
-
-config HUGETLB_PAGE_SIZE_64K
-	bool "64K"
-
-config HUGETLB_PAGE_SIZE_1MB
-	bool "1MB"
-
-config HUGETLB_PAGE_SIZE_512MB
-	bool "512MB"
-
-endchoice
-
-config SH64_USER_MISALIGNED_FIXUP
-	bool "Fixup misaligned loads/stores occurring in user mode"
-
-comment "Memory options"
-
-config CACHED_MEMORY_OFFSET
-	hex "Cached Area Offset"
-	default "20000000"
-
-config MEMORY_START
-	hex "Physical memory start address"
-	default "80000000"
-
-config MEMORY_SIZE_IN_MB
-	int "Memory size (in MB)"
-	default "8" if SH_SIMULATOR
-	default "64"
-
-comment "Cache options"
-
-choice
-	prompt "DCache mode"
-	default DCACHE_DISABLED if SH_SIMULATOR
-	default DCACHE_WRITE_BACK
-
-config DCACHE_WRITE_BACK
-	bool "Write-back"
-	depends on !SH_SIMULATOR
-
-config DCACHE_WRITE_THROUGH
-	bool "Write-through"
-	depends on !SH_SIMULATOR
-
-config DCACHE_DISABLED
-	bool "Disabled"
-
-endchoice
-
-config ICACHE_DISABLED
-	bool "ICache Disabling"
-
-config PCIDEVICE_MEMORY_START
-	hex
-	default "C0000000"
-
-config DEVICE_MEMORY_START
-	hex
-	default "E0000000"
-
-config FLASH_MEMORY_START
-	hex "Flash memory/on-chip devices start address"
-	default "00000000"
-
-config PCI_BLOCK_START
-	hex "PCI block start address"
-	default "40000000"
-
-comment "CPU Subtype specific options"
-
-config SH64_ID2815_WORKAROUND
-	bool "Include workaround for SH5-101 cut2 silicon defect ID2815"
-
-comment "Misc options"
-
-config HEARTBEAT
-	bool "Heartbeat LED"
-	depends on SH_CAYMAN
-
-config HDSP253_LED
-	bool "Support for HDSP-253 LED"
-	depends on SH_CAYMAN
-
-config SH_DMA
-	tristate "DMA controller (DMAC) support"
-
-config PREEMPT
-	bool "Preemptible Kernel (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
-
-source "mm/Kconfig"
-
-endmenu
-
-menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
-
-config ISA
-	bool
-
-config SBUS
-	bool
-
-config PCI
-	bool "PCI support"
-	depends on SH_CAYMAN
-	help
-	  Find out whether you have a PCI motherboard. PCI is the name of a
-	  bus system, i.e. the way the CPU talks to the other stuff inside
-	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
-	  VESA. If you have PCI, say Y, otherwise N.
-
-	  The PCI-HOWTO, available from
-	  <http://www.tldp.org/docs.html#howto>, contains valuable
-	  information about which PCI hardware does work under Linux and which
-	  doesn't.
-
-config SH_PCIDMA_NONCOHERENT
-	bool "Cache and PCI noncoherent"
-	depends on PCI
-	default y
-	help
-	  Enable this option if your platform does not have a CPU cache which
-	  remains coherent with PCI DMA. It is safest to say 'Y', although you
-	  will see better performance if you can say 'N', because the PCI DMA
-	  code will not have to flush the CPU's caches. If you have a PCI host
-	  bridge integrated with your SH CPU, refer carefully to the chip specs
-	  to see if you can say 'N' here. Otherwise, leave it as 'Y'.
-
-source "drivers/pci/Kconfig"
-
-source "drivers/pcmcia/Kconfig"
-
-source "drivers/pci/hotplug/Kconfig"
-
-endmenu
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "kernel/Kconfig.instrumentation"
-
-source "arch/sh64/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
-- 
cgit v1.2.3-59-g8ed1b


From dd730b8ff8adfdf8d39cd060acc7223f0d374d32 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 8 Nov 2007 18:51:33 +0900
Subject: sh: Move arch/sh64/lib to arch/sh/lib64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/lib64/.gitignore         |   1 +
 arch/sh/lib64/Makefile           |  19 ++
 arch/sh/lib64/c-checksum.c       | 217 ++++++++++++++++++++
 arch/sh/lib64/copy_user_memcpy.S | 217 ++++++++++++++++++++
 arch/sh/lib64/dbg.c              | 430 +++++++++++++++++++++++++++++++++++++++
 arch/sh/lib64/io.c               | 128 ++++++++++++
 arch/sh/lib64/iomap.c            |  54 +++++
 arch/sh/lib64/memcpy.c           |  81 ++++++++
 arch/sh/lib64/page_clear.S       |  54 +++++
 arch/sh/lib64/page_copy.S        |  91 +++++++++
 arch/sh/lib64/panic.c            |  58 ++++++
 arch/sh/lib64/udelay.c           |  59 ++++++
 arch/sh64/lib/.gitignore         |   1 -
 arch/sh64/lib/Makefile           |  19 --
 arch/sh64/lib/c-checksum.c       | 217 --------------------
 arch/sh64/lib/copy_user_memcpy.S | 217 --------------------
 arch/sh64/lib/dbg.c              | 430 ---------------------------------------
 arch/sh64/lib/io.c               | 128 ------------
 arch/sh64/lib/iomap.c            |  54 -----
 arch/sh64/lib/memcpy.c           |  81 --------
 arch/sh64/lib/page_clear.S       |  54 -----
 arch/sh64/lib/page_copy.S        |  91 ---------
 arch/sh64/lib/panic.c            |  58 ------
 arch/sh64/lib/udelay.c           |  59 ------
 24 files changed, 1409 insertions(+), 1409 deletions(-)
 create mode 100644 arch/sh/lib64/.gitignore
 create mode 100644 arch/sh/lib64/Makefile
 create mode 100644 arch/sh/lib64/c-checksum.c
 create mode 100644 arch/sh/lib64/copy_user_memcpy.S
 create mode 100644 arch/sh/lib64/dbg.c
 create mode 100644 arch/sh/lib64/io.c
 create mode 100644 arch/sh/lib64/iomap.c
 create mode 100644 arch/sh/lib64/memcpy.c
 create mode 100644 arch/sh/lib64/page_clear.S
 create mode 100644 arch/sh/lib64/page_copy.S
 create mode 100644 arch/sh/lib64/panic.c
 create mode 100644 arch/sh/lib64/udelay.c
 delete mode 100644 arch/sh64/lib/.gitignore
 delete mode 100644 arch/sh64/lib/Makefile
 delete mode 100644 arch/sh64/lib/c-checksum.c
 delete mode 100644 arch/sh64/lib/copy_user_memcpy.S
 delete mode 100644 arch/sh64/lib/dbg.c
 delete mode 100644 arch/sh64/lib/io.c
 delete mode 100644 arch/sh64/lib/iomap.c
 delete mode 100644 arch/sh64/lib/memcpy.c
 delete mode 100644 arch/sh64/lib/page_clear.S
 delete mode 100644 arch/sh64/lib/page_copy.S
 delete mode 100644 arch/sh64/lib/panic.c
 delete mode 100644 arch/sh64/lib/udelay.c

(limited to 'arch')

diff --git a/arch/sh/lib64/.gitignore b/arch/sh/lib64/.gitignore
new file mode 100644
index 000000000000..3508c2cb23c4
--- /dev/null
+++ b/arch/sh/lib64/.gitignore
@@ -0,0 +1 @@
+syscalltab.h
diff --git a/arch/sh/lib64/Makefile b/arch/sh/lib64/Makefile
new file mode 100644
index 000000000000..6a4cc3f9c0b1
--- /dev/null
+++ b/arch/sh/lib64/Makefile
@@ -0,0 +1,19 @@
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 2000, 2001  Paolo Alberelli
+# Coprygith (C) 2003  Paul Mundt
+#
+# Makefile for the SH-5 specific library files..
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+
+# Panic should really be compiled as PIC
+lib-y  := udelay.o c-checksum.o dbg.o io.o panic.o memcpy.o copy_user_memcpy.o \
+		page_copy.o page_clear.o iomap.o
+
diff --git a/arch/sh/lib64/c-checksum.c b/arch/sh/lib64/c-checksum.c
new file mode 100644
index 000000000000..053137abd8a0
--- /dev/null
+++ b/arch/sh/lib64/c-checksum.c
@@ -0,0 +1,217 @@
+/*
+ * arch/sh64/lib/c-checksum.c
+ *
+ * This file contains network checksum routines that are better done
+ * in an architecture-specific manner due to speed..
+ */
+
+#undef DEBUG
+
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <asm/byteorder.h>
+#include <asm/uaccess.h>
+
+static inline unsigned short from64to16(unsigned long long x)
+{
+	/* add up 32-bit words for 33 bits */
+	x = (x & 0xffffffff) + (x >> 32);
+	/* add up 16-bit and 17-bit words for 17+c bits */
+	x = (x & 0xffff) + (x >> 16);
+	/* add up 16-bit and 2-bit for 16+c bit */
+	x = (x & 0xffff) + (x >> 16);
+	/* add up carry.. */
+	x = (x & 0xffff) + (x >> 16);
+	return x;
+}
+
+static inline unsigned short foldto16(unsigned long x)
+{
+	/* add up 16-bit for 17 bits */
+	x = (x & 0xffff) + (x >> 16);
+	/* add up carry.. */
+	x = (x & 0xffff) + (x >> 16);
+	return x;
+}
+
+static inline unsigned short myfoldto16(unsigned long long x)
+{
+	/* Fold down to 32-bits so we don't loose in the typedef-less
+	   network stack.  */
+	/* 64 to 33 */
+	x = (x & 0xffffffff) + (x >> 32);
+	/* 33 to 32 */
+	x = (x & 0xffffffff) + (x >> 32);
+
+	/* add up 16-bit for 17 bits */
+	x = (x & 0xffff) + (x >> 16);
+	/* add up carry.. */
+	x = (x & 0xffff) + (x >> 16);
+	return x;
+}
+
+#define odd(x) ((x)&1)
+#define U16(x) ntohs(x)
+
+static unsigned long do_csum(const unsigned char *buff, int len)
+{
+	int odd, count;
+	unsigned long result = 0;
+
+	pr_debug("do_csum buff %p, len %d (0x%x)\n", buff, len, len);
+#ifdef DEBUG
+	for (i = 0; i < len; i++) {
+		if ((i % 26) == 0)
+			printk("\n");
+		printk("%02X ", buff[i]);
+	}
+#endif
+
+	if (len <= 0)
+		goto out;
+
+	odd = 1 & (unsigned long) buff;
+	if (odd) {
+		result = *buff << 8;
+		len--;
+		buff++;
+	}
+	count = len >> 1;	/* nr of 16-bit words.. */
+	if (count) {
+		if (2 & (unsigned long) buff) {
+			result += *(unsigned short *) buff;
+			count--;
+			len -= 2;
+			buff += 2;
+		}
+		count >>= 1;	/* nr of 32-bit words.. */
+		if (count) {
+			unsigned long carry = 0;
+			do {
+				unsigned long w = *(unsigned long *) buff;
+				buff += 4;
+				count--;
+				result += carry;
+				result += w;
+				carry = (w > result);
+			} while (count);
+			result += carry;
+			result = (result & 0xffff) + (result >> 16);
+		}
+		if (len & 2) {
+			result += *(unsigned short *) buff;
+			buff += 2;
+		}
+	}
+	if (len & 1)
+		result += *buff;
+	result = foldto16(result);
+	if (odd)
+		result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
+
+	pr_debug("\nCHECKSUM is 0x%lx\n", result);
+
+      out:
+	return result;
+}
+
+/* computes the checksum of a memory block at buff, length len,
+   and adds in "sum" (32-bit)  */
+__wsum csum_partial(const void *buff, int len, __wsum sum)
+{
+	unsigned long long result = do_csum(buff, len);
+
+	/* add in old sum, and carry.. */
+	result += (__force u32)sum;
+	/* 32+c bits -> 32 bits */
+	result = (result & 0xffffffff) + (result >> 32);
+
+	pr_debug("csum_partial, buff %p len %d sum 0x%x result=0x%016Lx\n",
+		buff, len, sum, result);
+
+	return (__force __wsum)result;
+}
+
+/* Copy while checksumming, otherwise like csum_partial.  */
+__wsum
+csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
+{
+	sum = csum_partial(src, len, sum);
+	memcpy(dst, src, len);
+
+	return sum;
+}
+
+/* Copy from userspace and compute checksum.  If we catch an exception
+   then zero the rest of the buffer.  */
+__wsum
+csum_partial_copy_from_user(const void __user *src, void *dst, int len,
+			    __wsum sum, int *err_ptr)
+{
+	int missing;
+
+	pr_debug
+	    ("csum_partial_copy_from_user src %p, dest %p, len %d, sum %08x, err_ptr %p\n",
+	     src, dst, len, sum, err_ptr);
+	missing = copy_from_user(dst, src, len);
+	pr_debug("  access_ok %d\n", __access_ok((unsigned long) src, len));
+	pr_debug("  missing %d\n", missing);
+	if (missing) {
+		memset(dst + len - missing, 0, missing);
+		*err_ptr = -EFAULT;
+	}
+
+	return csum_partial(dst, len, sum);
+}
+
+/* Copy to userspace and compute checksum.  */
+__wsum
+csum_partial_copy_to_user(const unsigned char *src, unsigned char *dst, int len,
+			  __wsum sum, int *err_ptr)
+{
+	sum = csum_partial(src, len, sum);
+
+	if (copy_to_user(dst, src, len))
+		*err_ptr = -EFAULT;
+
+	return sum;
+}
+
+/*
+ *	This is a version of ip_compute_csum() optimized for IP headers,
+ *	which always checksum on 4 octet boundaries.
+ */
+__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
+{
+	pr_debug("ip_fast_csum %p,%d\n", iph, ihl);
+
+	return (__force __sum16)~do_csum(iph, ihl * 4);
+}
+
+__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
+				unsigned short len,
+				unsigned short proto, __wsum sum)
+{
+	unsigned long long result;
+
+	pr_debug("ntohs(0x%x)=0x%x\n", 0xdead, ntohs(0xdead));
+	pr_debug("htons(0x%x)=0x%x\n", 0xdead, htons(0xdead));
+
+	result = (__force u64) saddr + (__force u64) daddr +
+		 (__force u64) sum + ((len + proto) << 8);
+
+	/* Fold down to 32-bits so we don't loose in the typedef-less
+	   network stack.  */
+	/* 64 to 33 */
+	result = (result & 0xffffffff) + (result >> 32);
+	/* 33 to 32 */
+	result = (result & 0xffffffff) + (result >> 32);
+
+	pr_debug("%s saddr %x daddr %x len %x proto %x sum %x result %08Lx\n",
+		__FUNCTION__, saddr, daddr, len, proto, sum, result);
+
+	return (__wsum)result;
+}
+EXPORT_SYMBOL(csum_tcpudp_nofold);
diff --git a/arch/sh/lib64/copy_user_memcpy.S b/arch/sh/lib64/copy_user_memcpy.S
new file mode 100644
index 000000000000..2a62816d2ddd
--- /dev/null
+++ b/arch/sh/lib64/copy_user_memcpy.S
@@ -0,0 +1,217 @@
+!
+! Fast SH memcpy
+!
+! by Toshiyasu Morita (tm@netcom.com)
+! hacked by J"orn Rernnecke (joern.rennecke@superh.com) ("o for o-umlaut)
+! SH5 code Copyright 2002 SuperH Ltd.
+!
+! Entry: ARG0: destination pointer
+!        ARG1: source pointer
+!        ARG2: byte count
+!
+! Exit:  RESULT: destination pointer
+!        any other registers in the range r0-r7: trashed
+!
+! Notes: Usually one wants to do small reads and write a longword, but
+!        unfortunately it is difficult in some cases to concatanate bytes
+!        into a longword on the SH, so this does a longword read and small
+!        writes.
+!
+! This implementation makes two assumptions about how it is called:
+!
+! 1.: If the byte count is nonzero, the address of the last byte to be
+!     copied is unsigned greater than the address of the first byte to
+!     be copied.  This could be easily swapped for a signed comparison,
+!     but the algorithm used needs some comparison.
+!
+! 2.: When there are two or three bytes in the last word of an 11-or-more
+!     bytes memory chunk to b copied, the rest of the word can be read
+!     without side effects.
+!     This could be easily changed by increasing the minumum size of
+!     a fast memcpy and the amount subtracted from r7 before L_2l_loop be 2,
+!     however, this would cost a few extra cyles on average.
+!     For SHmedia, the assumption is that any quadword can be read in its
+!     enirety if at least one byte is included in the copy.
+
+/* Imported into Linux kernel by Richard Curnow.  This is used to implement the
+   __copy_user function in the general case, so it has to be a distinct
+   function from intra-kernel memcpy to allow for exception fix-ups in the
+   event that the user pointer is bad somewhere in the copy (e.g. due to
+   running off the end of the vma).
+
+   Note, this algorithm will be slightly wasteful in the case where the source
+   and destination pointers are equally aligned, because the stlo/sthi pairs
+   could then be merged back into single stores.  If there are a lot of cache
+   misses, this is probably offset by the stall lengths on the preloads.
+
+*/
+
+/* NOTE : Prefetches removed and allocos guarded by synco to avoid TAKum03020
+ * erratum.  The first two prefetches are nop-ed out to avoid upsetting the
+ * instruction counts used in the jump address calculation.
+ * */
+
+	.section .text..SHmedia32,"ax"
+	.little
+	.balign 32
+	.global copy_user_memcpy
+	.global copy_user_memcpy_end
+copy_user_memcpy:
+
+#define LDUAQ(P,O,D0,D1) ldlo.q P,O,D0; ldhi.q P,O+7,D1
+#define STUAQ(P,O,D0,D1) stlo.q P,O,D0; sthi.q P,O+7,D1
+#define LDUAL(P,O,D0,D1) ldlo.l P,O,D0; ldhi.l P,O+3,D1
+#define STUAL(P,O,D0,D1) stlo.l P,O,D0; sthi.l P,O+3,D1
+
+	nop ! ld.b r3,0,r63 ! TAKum03020
+	pta/l Large,tr0
+	movi 25,r0
+	bgeu/u r4,r0,tr0
+	nsb r4,r0
+	shlli r0,5,r0
+	movi (L1-L0+63*32 + 1) & 0xffff,r1
+	sub r1, r0, r0
+L0:	ptrel r0,tr0
+	add r2,r4,r5
+	ptabs r18,tr1
+	add r3,r4,r6
+	blink tr0,r63
+
+/* Rearranged to make cut2 safe */
+	.balign 8
+L4_7:	/* 4..7 byte memcpy cntd. */
+	stlo.l r2, 0, r0
+	or r6, r7, r6
+	sthi.l r5, -1, r6
+	stlo.l r5, -4, r6
+	blink tr1,r63
+
+	.balign 8
+L1:	/* 0 byte memcpy */
+	nop
+	blink tr1,r63
+	nop
+	nop
+	nop
+	nop
+
+L2_3:	/* 2 or 3 byte memcpy cntd. */
+	st.b r5,-1,r6
+	blink tr1,r63
+
+	/* 1 byte memcpy */
+	ld.b r3,0,r0
+	st.b r2,0,r0
+	blink tr1,r63
+
+L8_15:	/* 8..15 byte memcpy cntd. */
+	stlo.q r2, 0, r0
+	or r6, r7, r6
+	sthi.q r5, -1, r6
+	stlo.q r5, -8, r6
+	blink tr1,r63
+
+	/* 2 or 3 byte memcpy */
+	ld.b r3,0,r0
+	nop ! ld.b r2,0,r63 ! TAKum03020
+	ld.b r3,1,r1
+	st.b r2,0,r0
+	pta/l L2_3,tr0
+	ld.b r6,-1,r6
+	st.b r2,1,r1
+	blink tr0, r63
+
+	/* 4 .. 7 byte memcpy */
+	LDUAL (r3, 0, r0, r1)
+	pta L4_7, tr0
+	ldlo.l r6, -4, r7
+	or r0, r1, r0
+	sthi.l r2, 3, r0
+	ldhi.l r6, -1, r6
+	blink tr0, r63
+
+	/* 8 .. 15 byte memcpy */
+	LDUAQ (r3, 0, r0, r1)
+	pta L8_15, tr0
+	ldlo.q r6, -8, r7
+	or r0, r1, r0
+	sthi.q r2, 7, r0
+	ldhi.q r6, -1, r6
+	blink tr0, r63
+
+	/* 16 .. 24 byte memcpy */
+	LDUAQ (r3, 0, r0, r1)
+	LDUAQ (r3, 8, r8, r9)
+	or r0, r1, r0
+	sthi.q r2, 7, r0
+	or r8, r9, r8
+	sthi.q r2, 15, r8
+	ldlo.q r6, -8, r7
+	ldhi.q r6, -1, r6
+	stlo.q r2, 8, r8
+	stlo.q r2, 0, r0
+	or r6, r7, r6
+	sthi.q r5, -1, r6
+	stlo.q r5, -8, r6
+	blink tr1,r63
+
+Large:
+	! ld.b r2, 0, r63 ! TAKum03020
+	pta/l  Loop_ua, tr1
+	ori r3, -8, r7
+	sub r2, r7, r22
+	sub r3, r2, r6
+	add r2, r4, r5
+	ldlo.q r3, 0, r0
+	addi r5, -16, r5
+	movi 64+8, r27 ! could subtract r7 from that.
+	stlo.q r2, 0, r0
+	sthi.q r2, 7, r0
+	ldx.q r22, r6, r0
+	bgtu/l r27, r4, tr1
+
+	addi r5, -48, r27
+	pta/l Loop_line, tr0
+	addi r6, 64, r36
+	addi r6, -24, r19
+	addi r6, -16, r20
+	addi r6, -8, r21
+
+Loop_line:
+	! ldx.q r22, r36, r63 ! TAKum03020
+	alloco r22, 32
+	synco
+	addi r22, 32, r22
+	ldx.q r22, r19, r23
+	sthi.q r22, -25, r0
+	ldx.q r22, r20, r24
+	ldx.q r22, r21, r25
+	stlo.q r22, -32, r0
+	ldx.q r22, r6,  r0
+	sthi.q r22, -17, r23
+	sthi.q r22,  -9, r24
+	sthi.q r22,  -1, r25
+	stlo.q r22, -24, r23
+	stlo.q r22, -16, r24
+	stlo.q r22,  -8, r25
+	bgeu r27, r22, tr0
+
+Loop_ua:
+	addi r22, 8, r22
+	sthi.q r22, -1, r0
+	stlo.q r22, -8, r0
+	ldx.q r22, r6, r0
+	bgtu/l r5, r22, tr1
+
+	add r3, r4, r7
+	ldlo.q r7, -8, r1
+	sthi.q r22, 7, r0
+	ldhi.q r7, -1, r7
+	ptabs r18,tr1
+	stlo.q r22, 0, r0
+	or r1, r7, r1
+	sthi.q r5, 15, r1
+	stlo.q r5, 8, r1
+	blink tr1, r63
+copy_user_memcpy_end:
+	nop
diff --git a/arch/sh/lib64/dbg.c b/arch/sh/lib64/dbg.c
new file mode 100644
index 000000000000..97816e0baf19
--- /dev/null
+++ b/arch/sh/lib64/dbg.c
@@ -0,0 +1,430 @@
+/*--------------------------------------------------------------------------
+--
+-- Identity : Linux50 Debug Funcions
+--
+-- File     : arch/sh64/lib/dbg.C
+--
+-- Copyright 2000, 2001 STMicroelectronics Limited.
+-- Copyright 2004 Richard Curnow (evt_debug etc)
+--
+--------------------------------------------------------------------------*/
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <asm/mmu_context.h>
+
+typedef u64 regType_t;
+
+static regType_t getConfigReg(u64 id)
+{
+	register u64 reg __asm__("r2");
+	asm volatile ("getcfg   %1, 0, %0":"=r" (reg):"r"(id));
+	return (reg);
+}
+
+/* ======================================================================= */
+
+static char *szTab[] = { "4k", "64k", "1M", "512M" };
+static char *protTab[] = { "----",
+	"---R",
+	"--X-",
+	"--XR",
+	"-W--",
+	"-W-R",
+	"-WX-",
+	"-WXR",
+	"U---",
+	"U--R",
+	"U-X-",
+	"U-XR",
+	"UW--",
+	"UW-R",
+	"UWX-",
+	"UWXR"
+};
+#define  ITLB_BASE	0x00000000
+#define  DTLB_BASE	0x00800000
+#define  MAX_TLBs		64
+/* PTE High */
+#define  GET_VALID(pte)        ((pte) & 0x1)
+#define  GET_SHARED(pte)       ((pte) & 0x2)
+#define  GET_ASID(pte)         ((pte >> 2) & 0x0ff)
+#define  GET_EPN(pte)          ((pte) & 0xfffff000)
+
+/* PTE Low */
+#define  GET_CBEHAVIOR(pte)    ((pte) & 0x3)
+#define  GET_PAGE_SIZE(pte)    szTab[((pte >> 3) & 0x3)]
+#define  GET_PROTECTION(pte)   protTab[((pte >> 6) & 0xf)]
+#define  GET_PPN(pte)          ((pte) & 0xfffff000)
+
+#define PAGE_1K_MASK           0x00000000
+#define PAGE_4K_MASK           0x00000010
+#define PAGE_64K_MASK          0x00000080
+#define MMU_PAGESIZE_MASK      (PAGE_64K_MASK | PAGE_4K_MASK)
+#define PAGE_1MB_MASK          MMU_PAGESIZE_MASK
+#define PAGE_1K                (1024)
+#define PAGE_4K                (1024 * 4)
+#define PAGE_64K               (1024 * 64)
+#define PAGE_1MB               (1024 * 1024)
+
+#define HOW_TO_READ_TLB_CONTENT  \
+       "[ ID]  PPN         EPN        ASID  Share  CB  P.Size   PROT.\n"
+
+void print_single_tlb(unsigned long tlb, int single_print)
+{
+	regType_t pteH;
+	regType_t pteL;
+	unsigned int valid, shared, asid, epn, cb, ppn;
+	char *pSize;
+	char *pProt;
+
+	/*
+	   ** in case of single print <single_print> is true, this implies:
+	   **   1) print the TLB in any case also if NOT VALID
+	   **   2) print out the header
+	 */
+
+	pteH = getConfigReg(tlb);
+	valid = GET_VALID(pteH);
+	if (single_print)
+		printk(HOW_TO_READ_TLB_CONTENT);
+	else if (!valid)
+		return;
+
+	pteL = getConfigReg(tlb + 1);
+
+	shared = GET_SHARED(pteH);
+	asid = GET_ASID(pteH);
+	epn = GET_EPN(pteH);
+	cb = GET_CBEHAVIOR(pteL);
+	pSize = GET_PAGE_SIZE(pteL);
+	pProt = GET_PROTECTION(pteL);
+	ppn = GET_PPN(pteL);
+	printk("[%c%2ld]  0x%08x  0x%08x  %03d   %02x    %02x   %4s    %s\n",
+	       ((valid) ? ' ' : 'u'), ((tlb & 0x0ffff) / TLB_STEP),
+	       ppn, epn, asid, shared, cb, pSize, pProt);
+}
+
+void print_dtlb(void)
+{
+	int count;
+	unsigned long tlb;
+
+	printk(" ================= SH-5 D-TLBs Status ===================\n");
+	printk(HOW_TO_READ_TLB_CONTENT);
+	tlb = DTLB_BASE;
+	for (count = 0; count < MAX_TLBs; count++, tlb += TLB_STEP)
+		print_single_tlb(tlb, 0);
+	printk
+	    (" =============================================================\n");
+}
+
+void print_itlb(void)
+{
+	int count;
+	unsigned long tlb;
+
+	printk(" ================= SH-5 I-TLBs Status ===================\n");
+	printk(HOW_TO_READ_TLB_CONTENT);
+	tlb = ITLB_BASE;
+	for (count = 0; count < MAX_TLBs; count++, tlb += TLB_STEP)
+		print_single_tlb(tlb, 0);
+	printk
+	    (" =============================================================\n");
+}
+
+/* ======================================================================= */
+
+#ifdef CONFIG_POOR_MANS_STRACE
+
+#include "syscalltab.h"
+
+struct ring_node {
+	int evt;
+	int ret_addr;
+	int event;
+	int tra;
+	int pid;
+	unsigned long sp;
+	unsigned long pc;
+};
+
+static struct ring_node event_ring[16];
+static int event_ptr = 0;
+
+struct stored_syscall_data {
+	int pid;
+	int syscall_number;
+};
+
+#define N_STORED_SYSCALLS 16
+
+static struct stored_syscall_data stored_syscalls[N_STORED_SYSCALLS];
+static int syscall_next=0;
+static int syscall_next_print=0;
+
+void evt_debug(int evt, int ret_addr, int event, int tra, struct pt_regs *regs)
+{
+	int syscallno = tra & 0xff;
+	unsigned long sp;
+	unsigned long stack_bottom;
+	int pid;
+	struct ring_node *rr;
+
+	pid = current->pid;
+	stack_bottom = (unsigned long) task_stack_page(current);
+	asm volatile("ori r15, 0, %0" : "=r" (sp));
+	rr = event_ring + event_ptr;
+	rr->evt = evt;
+	rr->ret_addr = ret_addr;
+	rr->event = event;
+	rr->tra = tra;
+	rr->pid = pid;
+	rr->sp = sp;
+	rr->pc = regs->pc;
+
+	if (sp < stack_bottom + 3092) {
+		printk("evt_debug : stack underflow report\n");
+		int i, j;
+		for (j=0, i = event_ptr; j<16; j++) {
+			rr = event_ring + i;
+			printk("evt=%08x event=%08x tra=%08x pid=%5d sp=%08lx pc=%08lx\n",
+				rr->evt, rr->event, rr->tra, rr->pid, rr->sp, rr->pc);
+			i--;
+			i &= 15;
+		}
+		panic("STACK UNDERFLOW\n");
+	}
+
+	event_ptr = (event_ptr + 1) & 15;
+
+	if ((event == 2) && (evt == 0x160)) {
+		if (syscallno < NUM_SYSCALL_INFO_ENTRIES) {
+			/* Store the syscall information to print later.  We
+			 * can't print this now - currently we're running with
+			 * SR.BL=1, so we can't take a tlbmiss (which could occur
+			 * in the console drivers under printk).
+			 *
+			 * Just overwrite old entries on ring overflow - this
+			 * is only for last-hope debugging. */
+			stored_syscalls[syscall_next].pid = current->pid;
+			stored_syscalls[syscall_next].syscall_number = syscallno;
+			syscall_next++;
+			syscall_next &= (N_STORED_SYSCALLS - 1);
+		}
+	}
+}
+
+static void drain_syscalls(void) {
+	while (syscall_next_print != syscall_next) {
+		printk("Task %d: %s()\n",
+			stored_syscalls[syscall_next_print].pid,
+			syscall_info_table[stored_syscalls[syscall_next_print].syscall_number].name);
+			syscall_next_print++;
+			syscall_next_print &= (N_STORED_SYSCALLS - 1);
+	}
+}
+
+void evt_debug2(unsigned int ret)
+{
+	drain_syscalls();
+	printk("Task %d: syscall returns %08x\n", current->pid, ret);
+}
+
+void evt_debug_ret_from_irq(struct pt_regs *regs)
+{
+	int pid;
+	struct ring_node *rr;
+
+	pid = current->pid;
+	rr = event_ring + event_ptr;
+	rr->evt = 0xffff;
+	rr->ret_addr = 0;
+	rr->event = 0;
+	rr->tra = 0;
+	rr->pid = pid;
+	rr->pc = regs->pc;
+	event_ptr = (event_ptr + 1) & 15;
+}
+
+void evt_debug_ret_from_exc(struct pt_regs *regs)
+{
+	int pid;
+	struct ring_node *rr;
+
+	pid = current->pid;
+	rr = event_ring + event_ptr;
+	rr->evt = 0xfffe;
+	rr->ret_addr = 0;
+	rr->event = 0;
+	rr->tra = 0;
+	rr->pid = pid;
+	rr->pc = regs->pc;
+	event_ptr = (event_ptr + 1) & 15;
+}
+
+#endif /* CONFIG_POOR_MANS_STRACE */
+
+/* ======================================================================= */
+
+void show_excp_regs(char *from, int trapnr, int signr, struct pt_regs *regs)
+{
+
+	unsigned long long ah, al, bh, bl, ch, cl;
+
+	printk("\n");
+	printk("EXCEPTION - %s: task %d; Linux trap # %d; signal = %d\n",
+	       ((from) ? from : "???"), current->pid, trapnr, signr);
+
+	asm volatile ("getcon   " __EXPEVT ", %0":"=r"(ah));
+	asm volatile ("getcon   " __EXPEVT ", %0":"=r"(al));
+	ah = (ah) >> 32;
+	al = (al) & 0xffffffff;
+	asm volatile ("getcon   " __KCR1 ", %0":"=r"(bh));
+	asm volatile ("getcon   " __KCR1 ", %0":"=r"(bl));
+	bh = (bh) >> 32;
+	bl = (bl) & 0xffffffff;
+	asm volatile ("getcon   " __INTEVT ", %0":"=r"(ch));
+	asm volatile ("getcon   " __INTEVT ", %0":"=r"(cl));
+	ch = (ch) >> 32;
+	cl = (cl) & 0xffffffff;
+	printk("EXPE: %08Lx%08Lx KCR1: %08Lx%08Lx INTE: %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	asm volatile ("getcon   " __PEXPEVT ", %0":"=r"(ah));
+	asm volatile ("getcon   " __PEXPEVT ", %0":"=r"(al));
+	ah = (ah) >> 32;
+	al = (al) & 0xffffffff;
+	asm volatile ("getcon   " __PSPC ", %0":"=r"(bh));
+	asm volatile ("getcon   " __PSPC ", %0":"=r"(bl));
+	bh = (bh) >> 32;
+	bl = (bl) & 0xffffffff;
+	asm volatile ("getcon   " __PSSR ", %0":"=r"(ch));
+	asm volatile ("getcon   " __PSSR ", %0":"=r"(cl));
+	ch = (ch) >> 32;
+	cl = (cl) & 0xffffffff;
+	printk("PEXP: %08Lx%08Lx PSPC: %08Lx%08Lx PSSR: %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->pc) >> 32;
+	al = (regs->pc) & 0xffffffff;
+	bh = (regs->regs[18]) >> 32;
+	bl = (regs->regs[18]) & 0xffffffff;
+	ch = (regs->regs[15]) >> 32;
+	cl = (regs->regs[15]) & 0xffffffff;
+	printk("PC  : %08Lx%08Lx LINK: %08Lx%08Lx SP  : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->sr) >> 32;
+	al = (regs->sr) & 0xffffffff;
+	asm volatile ("getcon   " __TEA ", %0":"=r"(bh));
+	asm volatile ("getcon   " __TEA ", %0":"=r"(bl));
+	bh = (bh) >> 32;
+	bl = (bl) & 0xffffffff;
+	asm volatile ("getcon   " __KCR0 ", %0":"=r"(ch));
+	asm volatile ("getcon   " __KCR0 ", %0":"=r"(cl));
+	ch = (ch) >> 32;
+	cl = (cl) & 0xffffffff;
+	printk("SR  : %08Lx%08Lx TEA : %08Lx%08Lx KCR0: %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[0]) >> 32;
+	al = (regs->regs[0]) & 0xffffffff;
+	bh = (regs->regs[1]) >> 32;
+	bl = (regs->regs[1]) & 0xffffffff;
+	ch = (regs->regs[2]) >> 32;
+	cl = (regs->regs[2]) & 0xffffffff;
+	printk("R0  : %08Lx%08Lx R1  : %08Lx%08Lx R2  : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[3]) >> 32;
+	al = (regs->regs[3]) & 0xffffffff;
+	bh = (regs->regs[4]) >> 32;
+	bl = (regs->regs[4]) & 0xffffffff;
+	ch = (regs->regs[5]) >> 32;
+	cl = (regs->regs[5]) & 0xffffffff;
+	printk("R3  : %08Lx%08Lx R4  : %08Lx%08Lx R5  : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[6]) >> 32;
+	al = (regs->regs[6]) & 0xffffffff;
+	bh = (regs->regs[7]) >> 32;
+	bl = (regs->regs[7]) & 0xffffffff;
+	ch = (regs->regs[8]) >> 32;
+	cl = (regs->regs[8]) & 0xffffffff;
+	printk("R6  : %08Lx%08Lx R7  : %08Lx%08Lx R8  : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[9]) >> 32;
+	al = (regs->regs[9]) & 0xffffffff;
+	bh = (regs->regs[10]) >> 32;
+	bl = (regs->regs[10]) & 0xffffffff;
+	ch = (regs->regs[11]) >> 32;
+	cl = (regs->regs[11]) & 0xffffffff;
+	printk("R9  : %08Lx%08Lx R10 : %08Lx%08Lx R11 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+	printk("....\n");
+
+	ah = (regs->tregs[0]) >> 32;
+	al = (regs->tregs[0]) & 0xffffffff;
+	bh = (regs->tregs[1]) >> 32;
+	bl = (regs->tregs[1]) & 0xffffffff;
+	ch = (regs->tregs[2]) >> 32;
+	cl = (regs->tregs[2]) & 0xffffffff;
+	printk("T0  : %08Lx%08Lx T1  : %08Lx%08Lx T2  : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+	printk("....\n");
+
+	print_dtlb();
+	print_itlb();
+}
+
+/* ======================================================================= */
+
+/*
+** Depending on <base> scan the MMU, Data or Instruction side
+** looking for a valid mapping matching Eaddr & asid.
+** Return -1 if not found or the TLB id entry otherwise.
+** Note: it works only for 4k pages!
+*/
+static unsigned long
+lookup_mmu_side(unsigned long base, unsigned long Eaddr, unsigned long asid)
+{
+	regType_t pteH;
+	unsigned long epn;
+	int count;
+
+	epn = Eaddr & 0xfffff000;
+
+	for (count = 0; count < MAX_TLBs; count++, base += TLB_STEP) {
+		pteH = getConfigReg(base);
+		if (GET_VALID(pteH))
+			if ((unsigned long) GET_EPN(pteH) == epn)
+				if ((unsigned long) GET_ASID(pteH) == asid)
+					break;
+	}
+	return ((unsigned long) ((count < MAX_TLBs) ? base : -1));
+}
+
+unsigned long lookup_dtlb(unsigned long Eaddr)
+{
+	unsigned long asid = get_asid();
+	return (lookup_mmu_side((u64) DTLB_BASE, Eaddr, asid));
+}
+
+unsigned long lookup_itlb(unsigned long Eaddr)
+{
+	unsigned long asid = get_asid();
+	return (lookup_mmu_side((u64) ITLB_BASE, Eaddr, asid));
+}
+
+void print_page(struct page *page)
+{
+	printk("  page[%p] -> index 0x%lx,  count 0x%x,  flags 0x%lx\n",
+	       page, page->index, page_count(page), page->flags);
+	printk("       address_space = %p, pages =%ld\n", page->mapping,
+	       page->mapping->nrpages);
+
+}
diff --git a/arch/sh/lib64/io.c b/arch/sh/lib64/io.c
new file mode 100644
index 000000000000..a3f3a2b8e25b
--- /dev/null
+++ b/arch/sh/lib64/io.c
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2000 David J. Mckay (david.mckay@st.com)
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ * This file contains the I/O routines for use on the overdrive board
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <asm/system.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+
+/*  Now for the string version of these functions */
+void outsb(unsigned long port, const void *addr, unsigned long count)
+{
+	int i;
+	unsigned char *p = (unsigned char *) addr;
+
+	for (i = 0; i < count; i++, p++) {
+		outb(*p, port);
+	}
+}
+EXPORT_SYMBOL(outsb);
+
+void insb(unsigned long port, void *addr, unsigned long count)
+{
+	int i;
+	unsigned char *p = (unsigned char *) addr;
+
+	for (i = 0; i < count; i++, p++) {
+		*p = inb(port);
+	}
+}
+EXPORT_SYMBOL(insb);
+
+/* For the 16 and 32 bit string functions, we have to worry about alignment.
+ * The SH does not do unaligned accesses, so we have to read as bytes and
+ * then write as a word or dword.
+ * This can be optimised a lot more, especially in the case where the data
+ * is aligned
+ */
+
+void outsw(unsigned long port, const void *addr, unsigned long count)
+{
+	int i;
+	unsigned short tmp;
+	unsigned char *p = (unsigned char *) addr;
+
+	for (i = 0; i < count; i++, p += 2) {
+		tmp = (*p) | ((*(p + 1)) << 8);
+		outw(tmp, port);
+	}
+}
+EXPORT_SYMBOL(outsw);
+
+void insw(unsigned long port, void *addr, unsigned long count)
+{
+	int i;
+	unsigned short tmp;
+	unsigned char *p = (unsigned char *) addr;
+
+	for (i = 0; i < count; i++, p += 2) {
+		tmp = inw(port);
+		p[0] = tmp & 0xff;
+		p[1] = (tmp >> 8) & 0xff;
+	}
+}
+EXPORT_SYMBOL(insw);
+
+void outsl(unsigned long port, const void *addr, unsigned long count)
+{
+	int i;
+	unsigned tmp;
+	unsigned char *p = (unsigned char *) addr;
+
+	for (i = 0; i < count; i++, p += 4) {
+		tmp = (*p) | ((*(p + 1)) << 8) | ((*(p + 2)) << 16) |
+		    ((*(p + 3)) << 24);
+		outl(tmp, port);
+	}
+}
+EXPORT_SYMBOL(outsl);
+
+void insl(unsigned long port, void *addr, unsigned long count)
+{
+	int i;
+	unsigned tmp;
+	unsigned char *p = (unsigned char *) addr;
+
+	for (i = 0; i < count; i++, p += 4) {
+		tmp = inl(port);
+		p[0] = tmp & 0xff;
+		p[1] = (tmp >> 8) & 0xff;
+		p[2] = (tmp >> 16) & 0xff;
+		p[3] = (tmp >> 24) & 0xff;
+
+	}
+}
+EXPORT_SYMBOL(insl);
+
+void memcpy_toio(void __iomem *to, const void *from, long count)
+{
+	unsigned char *p = (unsigned char *) from;
+
+	while (count) {
+		count--;
+		writeb(*p++, to++);
+	}
+}
+EXPORT_SYMBOL(memcpy_toio);
+
+void memcpy_fromio(void *to, void __iomem *from, long count)
+{
+	int i;
+	unsigned char *p = (unsigned char *) to;
+
+	for (i = 0; i < count; i++) {
+		p[i] = readb(from);
+		from++;
+	}
+}
+EXPORT_SYMBOL(memcpy_fromio);
diff --git a/arch/sh/lib64/iomap.c b/arch/sh/lib64/iomap.c
new file mode 100644
index 000000000000..253d1e351d49
--- /dev/null
+++ b/arch/sh/lib64/iomap.c
@@ -0,0 +1,54 @@
+/*
+ * arch/sh64/lib/iomap.c
+ *
+ * Generic sh64 iomap interface
+ *
+ * Copyright (C) 2004  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/pci.h>
+#include <asm/io.h>
+
+void __iomem *__attribute__ ((weak))
+ioport_map(unsigned long port, unsigned int len)
+{
+	return (void __iomem *)port;
+}
+EXPORT_SYMBOL(ioport_map);
+
+void ioport_unmap(void __iomem *addr)
+{
+	/* Nothing .. */
+}
+EXPORT_SYMBOL(ioport_unmap);
+
+#ifdef CONFIG_PCI
+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
+{
+	unsigned long start = pci_resource_start(dev, bar);
+	unsigned long len = pci_resource_len(dev, bar);
+	unsigned long flags = pci_resource_flags(dev, bar);
+
+	if (!len)
+		return NULL;
+	if (max && len > max)
+		len = max;
+	if (flags & IORESOURCE_IO)
+		return ioport_map(start + pciio_virt, len);
+	if (flags & IORESOURCE_MEM)
+		return (void __iomem *)start;
+
+	/* What? */
+	return NULL;
+}
+EXPORT_SYMBOL(pci_iomap);
+
+void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
+{
+	/* Nothing .. */
+}
+EXPORT_SYMBOL(pci_iounmap);
+#endif
diff --git a/arch/sh/lib64/memcpy.c b/arch/sh/lib64/memcpy.c
new file mode 100644
index 000000000000..fba436a92bfa
--- /dev/null
+++ b/arch/sh/lib64/memcpy.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2002 Mark Debbage (Mark.Debbage@superh.com)
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ */
+
+#include <linux/types.h>
+#include <asm/string.h>
+
+// This is a simplistic optimization of memcpy to increase the
+// granularity of access beyond one byte using aligned
+// loads and stores. This is not an optimal implementation
+// for SH-5 (especially with regard to prefetching and the cache),
+// and a better version should be provided later ...
+
+void *memcpy(void *dest, const void *src, size_t count)
+{
+	char *d = (char *) dest, *s = (char *) src;
+
+	if (count >= 32) {
+		int i = 8 - (((unsigned long) d) & 0x7);
+
+		if (i != 8)
+			while (i-- && count--) {
+				*d++ = *s++;
+			}
+
+		if (((((unsigned long) d) & 0x7) == 0) &&
+		    ((((unsigned long) s) & 0x7) == 0)) {
+			while (count >= 32) {
+				unsigned long long t1, t2, t3, t4;
+				t1 = *(unsigned long long *) (s);
+				t2 = *(unsigned long long *) (s + 8);
+				t3 = *(unsigned long long *) (s + 16);
+				t4 = *(unsigned long long *) (s + 24);
+				*(unsigned long long *) (d) = t1;
+				*(unsigned long long *) (d + 8) = t2;
+				*(unsigned long long *) (d + 16) = t3;
+				*(unsigned long long *) (d + 24) = t4;
+				d += 32;
+				s += 32;
+				count -= 32;
+			}
+			while (count >= 8) {
+				*(unsigned long long *) d =
+				    *(unsigned long long *) s;
+				d += 8;
+				s += 8;
+				count -= 8;
+			}
+		}
+
+		if (((((unsigned long) d) & 0x3) == 0) &&
+		    ((((unsigned long) s) & 0x3) == 0)) {
+			while (count >= 4) {
+				*(unsigned long *) d = *(unsigned long *) s;
+				d += 4;
+				s += 4;
+				count -= 4;
+			}
+		}
+
+		if (((((unsigned long) d) & 0x1) == 0) &&
+		    ((((unsigned long) s) & 0x1) == 0)) {
+			while (count >= 2) {
+				*(unsigned short *) d = *(unsigned short *) s;
+				d += 2;
+				s += 2;
+				count -= 2;
+			}
+		}
+	}
+
+	while (count--) {
+		*d++ = *s++;
+	}
+
+	return d;
+}
diff --git a/arch/sh/lib64/page_clear.S b/arch/sh/lib64/page_clear.S
new file mode 100644
index 000000000000..ac0111d669a3
--- /dev/null
+++ b/arch/sh/lib64/page_clear.S
@@ -0,0 +1,54 @@
+/*
+   Copyright 2003 Richard Curnow, SuperH (UK) Ltd.
+
+   This file is subject to the terms and conditions of the GNU General Public
+   License.  See the file "COPYING" in the main directory of this archive
+   for more details.
+
+   Tight version of memset for the case of just clearing a page.  It turns out
+   that having the alloco's spaced out slightly due to the increment/branch
+   pair causes them to contend less for access to the cache.  Similarly,
+   keeping the stores apart from the allocos causes less contention.  => Do two
+   separate loops.  Do multiple stores per loop to amortise the
+   increment/branch cost a little.
+
+   Parameters:
+   r2 : source effective address (start of page)
+
+   Always clears 4096 bytes.
+
+   Note : alloco guarded by synco to avoid TAKum03020 erratum
+
+*/
+
+	.section .text..SHmedia32,"ax"
+	.little
+
+	.balign 8
+	.global sh64_page_clear
+sh64_page_clear:
+	pta/l 1f, tr1
+	pta/l 2f, tr2
+	ptabs/l r18, tr0
+
+	movi 4096, r7
+	add  r2, r7, r7
+	add  r2, r63, r6
+1:
+	alloco r6, 0
+	synco	! TAKum03020
+	addi	r6, 32, r6
+	bgt/l	r7, r6, tr1
+
+	add  r2, r63, r6
+2:
+	st.q  r6,   0, r63
+	st.q  r6,   8, r63
+	st.q  r6,  16, r63
+	st.q  r6,  24, r63
+	addi r6, 32, r6
+	bgt/l r7, r6, tr2
+
+	blink tr0, r63
+
+
diff --git a/arch/sh/lib64/page_copy.S b/arch/sh/lib64/page_copy.S
new file mode 100644
index 000000000000..e159c3cd2582
--- /dev/null
+++ b/arch/sh/lib64/page_copy.S
@@ -0,0 +1,91 @@
+/*
+   Copyright 2003 Richard Curnow, SuperH (UK) Ltd.
+
+   This file is subject to the terms and conditions of the GNU General Public
+   License.  See the file "COPYING" in the main directory of this archive
+   for more details.
+
+   Tight version of mempy for the case of just copying a page.
+   Prefetch strategy empirically optimised against RTL simulations
+   of SH5-101 cut2 eval chip with Cayman board DDR memory.
+
+   Parameters:
+   r2 : source effective address (start of page)
+   r3 : destination effective address (start of page)
+
+   Always copies 4096 bytes.
+
+   Points to review.
+   * Currently the prefetch is 4 lines ahead and the alloco is 2 lines ahead.
+     It seems like the prefetch needs to be at at least 4 lines ahead to get
+     the data into the cache in time, and the allocos contend with outstanding
+     prefetches for the same cache set, so it's better to have the numbers
+     different.
+   */
+
+	.section .text..SHmedia32,"ax"
+	.little
+
+	.balign 8
+	.global sh64_page_copy
+sh64_page_copy:
+
+	/* Copy 4096 bytes worth of data from r2 to r3.
+	   Do prefetches 4 lines ahead.
+	   Do alloco 2 lines ahead */
+
+	pta 1f, tr1
+	pta 2f, tr2
+	pta 3f, tr3
+	ptabs r18, tr0
+
+#if 0
+	/* TAKum03020 */
+	ld.q r2, 0x00, r63
+	ld.q r2, 0x20, r63
+	ld.q r2, 0x40, r63
+	ld.q r2, 0x60, r63
+#endif
+	alloco r3, 0x00
+	synco		! TAKum03020
+	alloco r3, 0x20
+	synco		! TAKum03020
+
+	movi 3968, r6
+	add  r3, r6, r6
+	addi r6, 64, r7
+	addi r7, 64, r8
+	sub r2, r3, r60
+	addi r60, 8, r61
+	addi r61, 8, r62
+	addi r62, 8, r23
+	addi r60, 0x80, r22
+
+/* Minimal code size.  The extra branches inside the loop don't cost much
+   because they overlap with the time spent waiting for prefetches to
+   complete. */
+1:
+#if 0
+	/* TAKum03020 */
+	bge/u r3, r6, tr2  ! skip prefetch for last 4 lines
+	ldx.q r3, r22, r63 ! prefetch 4 lines hence
+#endif
+2:
+	bge/u r3, r7, tr3  ! skip alloco for last 2 lines
+	alloco r3, 0x40    ! alloc destination line 2 lines ahead
+	synco		! TAKum03020
+3:
+	ldx.q r3, r60, r36
+	ldx.q r3, r61, r37
+	ldx.q r3, r62, r38
+	ldx.q r3, r23, r39
+	st.q  r3,   0, r36
+	st.q  r3,   8, r37
+	st.q  r3,  16, r38
+	st.q  r3,  24, r39
+	addi r3, 32, r3
+	bgt/l r8, r3, tr1
+
+	blink tr0, r63	   ! return
+
+
diff --git a/arch/sh/lib64/panic.c b/arch/sh/lib64/panic.c
new file mode 100644
index 000000000000..c9eb1cb50d97
--- /dev/null
+++ b/arch/sh/lib64/panic.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2003  Richard Curnow, SuperH UK Limited
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/kernel.h>
+#include <asm/io.h>
+#include <asm/registers.h>
+
+/* THIS IS A PHYSICAL ADDRESS */
+#define HDSP2534_ADDR (0x04002100)
+
+#ifdef CONFIG_SH_CAYMAN
+
+static void poor_mans_delay(void)
+{
+	int i;
+	for (i = 0; i < 2500000; i++) {
+	}		/* poor man's delay */
+}
+
+static void show_value(unsigned long x)
+{
+	int i;
+	unsigned nibble;
+	for (i = 0; i < 8; i++) {
+		nibble = ((x >> (i * 4)) & 0xf);
+
+		ctrl_outb(nibble + ((nibble > 9) ? 55 : 48),
+			  HDSP2534_ADDR + 0xe0 + ((7 - i) << 2));
+	}
+}
+
+#endif
+
+void
+panic_handler(unsigned long panicPC, unsigned long panicSSR,
+	      unsigned long panicEXPEVT)
+{
+#ifdef CONFIG_SH_CAYMAN
+	while (1) {
+		/* This piece of code displays the PC on the LED display */
+		show_value(panicPC);
+		poor_mans_delay();
+		show_value(panicSSR);
+		poor_mans_delay();
+		show_value(panicEXPEVT);
+		poor_mans_delay();
+	}
+#endif
+
+	/* Never return from the panic handler */
+	for (;;) ;
+
+}
diff --git a/arch/sh/lib64/udelay.c b/arch/sh/lib64/udelay.c
new file mode 100644
index 000000000000..327653914007
--- /dev/null
+++ b/arch/sh/lib64/udelay.c
@@ -0,0 +1,59 @@
+/*
+ * arch/sh64/lib/udelay.c
+ *
+ * Delay routines, using a pre-computed "loops_per_jiffy" value.
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003, 2004  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/sched.h>
+#include <asm/param.h>
+
+extern unsigned long loops_per_jiffy;
+
+/*
+ * Use only for very small delays (< 1 msec).
+ *
+ * The active part of our cycle counter is only 32-bits wide, and
+ * we're treating the difference between two marks as signed.  On
+ * a 1GHz box, that's about 2 seconds.
+ */
+
+void __delay(int loops)
+{
+	long long dummy;
+	__asm__ __volatile__("gettr	tr0, %1\n\t"
+			     "pta	$+4, tr0\n\t"
+			     "addi	%0, -1, %0\n\t"
+			     "bne	%0, r63, tr0\n\t"
+			     "ptabs	%1, tr0\n\t":"=r"(loops),
+			     "=r"(dummy)
+			     :"0"(loops));
+}
+
+void __udelay(unsigned long long usecs, unsigned long lpj)
+{
+	usecs *= (((unsigned long long) HZ << 32) / 1000000) * lpj;
+	__delay((long long) usecs >> 32);
+}
+
+void __ndelay(unsigned long long nsecs, unsigned long lpj)
+{
+	nsecs *= (((unsigned long long) HZ << 32) / 1000000000) * lpj;
+	__delay((long long) nsecs >> 32);
+}
+
+void udelay(unsigned long usecs)
+{
+	__udelay(usecs, loops_per_jiffy);
+}
+
+void ndelay(unsigned long nsecs)
+{
+	__ndelay(nsecs, loops_per_jiffy);
+}
+
diff --git a/arch/sh64/lib/.gitignore b/arch/sh64/lib/.gitignore
deleted file mode 100644
index 3508c2cb23c4..000000000000
--- a/arch/sh64/lib/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-syscalltab.h
diff --git a/arch/sh64/lib/Makefile b/arch/sh64/lib/Makefile
deleted file mode 100644
index 6a4cc3f9c0b1..000000000000
--- a/arch/sh64/lib/Makefile
+++ /dev/null
@@ -1,19 +0,0 @@
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2000, 2001  Paolo Alberelli
-# Coprygith (C) 2003  Paul Mundt
-#
-# Makefile for the SH-5 specific library files..
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-# Panic should really be compiled as PIC
-lib-y  := udelay.o c-checksum.o dbg.o io.o panic.o memcpy.o copy_user_memcpy.o \
-		page_copy.o page_clear.o iomap.o
-
diff --git a/arch/sh64/lib/c-checksum.c b/arch/sh64/lib/c-checksum.c
deleted file mode 100644
index 053137abd8a0..000000000000
--- a/arch/sh64/lib/c-checksum.c
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- * arch/sh64/lib/c-checksum.c
- *
- * This file contains network checksum routines that are better done
- * in an architecture-specific manner due to speed..
- */
-
-#undef DEBUG
-
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <asm/byteorder.h>
-#include <asm/uaccess.h>
-
-static inline unsigned short from64to16(unsigned long long x)
-{
-	/* add up 32-bit words for 33 bits */
-	x = (x & 0xffffffff) + (x >> 32);
-	/* add up 16-bit and 17-bit words for 17+c bits */
-	x = (x & 0xffff) + (x >> 16);
-	/* add up 16-bit and 2-bit for 16+c bit */
-	x = (x & 0xffff) + (x >> 16);
-	/* add up carry.. */
-	x = (x & 0xffff) + (x >> 16);
-	return x;
-}
-
-static inline unsigned short foldto16(unsigned long x)
-{
-	/* add up 16-bit for 17 bits */
-	x = (x & 0xffff) + (x >> 16);
-	/* add up carry.. */
-	x = (x & 0xffff) + (x >> 16);
-	return x;
-}
-
-static inline unsigned short myfoldto16(unsigned long long x)
-{
-	/* Fold down to 32-bits so we don't loose in the typedef-less
-	   network stack.  */
-	/* 64 to 33 */
-	x = (x & 0xffffffff) + (x >> 32);
-	/* 33 to 32 */
-	x = (x & 0xffffffff) + (x >> 32);
-
-	/* add up 16-bit for 17 bits */
-	x = (x & 0xffff) + (x >> 16);
-	/* add up carry.. */
-	x = (x & 0xffff) + (x >> 16);
-	return x;
-}
-
-#define odd(x) ((x)&1)
-#define U16(x) ntohs(x)
-
-static unsigned long do_csum(const unsigned char *buff, int len)
-{
-	int odd, count;
-	unsigned long result = 0;
-
-	pr_debug("do_csum buff %p, len %d (0x%x)\n", buff, len, len);
-#ifdef DEBUG
-	for (i = 0; i < len; i++) {
-		if ((i % 26) == 0)
-			printk("\n");
-		printk("%02X ", buff[i]);
-	}
-#endif
-
-	if (len <= 0)
-		goto out;
-
-	odd = 1 & (unsigned long) buff;
-	if (odd) {
-		result = *buff << 8;
-		len--;
-		buff++;
-	}
-	count = len >> 1;	/* nr of 16-bit words.. */
-	if (count) {
-		if (2 & (unsigned long) buff) {
-			result += *(unsigned short *) buff;
-			count--;
-			len -= 2;
-			buff += 2;
-		}
-		count >>= 1;	/* nr of 32-bit words.. */
-		if (count) {
-			unsigned long carry = 0;
-			do {
-				unsigned long w = *(unsigned long *) buff;
-				buff += 4;
-				count--;
-				result += carry;
-				result += w;
-				carry = (w > result);
-			} while (count);
-			result += carry;
-			result = (result & 0xffff) + (result >> 16);
-		}
-		if (len & 2) {
-			result += *(unsigned short *) buff;
-			buff += 2;
-		}
-	}
-	if (len & 1)
-		result += *buff;
-	result = foldto16(result);
-	if (odd)
-		result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
-
-	pr_debug("\nCHECKSUM is 0x%lx\n", result);
-
-      out:
-	return result;
-}
-
-/* computes the checksum of a memory block at buff, length len,
-   and adds in "sum" (32-bit)  */
-__wsum csum_partial(const void *buff, int len, __wsum sum)
-{
-	unsigned long long result = do_csum(buff, len);
-
-	/* add in old sum, and carry.. */
-	result += (__force u32)sum;
-	/* 32+c bits -> 32 bits */
-	result = (result & 0xffffffff) + (result >> 32);
-
-	pr_debug("csum_partial, buff %p len %d sum 0x%x result=0x%016Lx\n",
-		buff, len, sum, result);
-
-	return (__force __wsum)result;
-}
-
-/* Copy while checksumming, otherwise like csum_partial.  */
-__wsum
-csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
-{
-	sum = csum_partial(src, len, sum);
-	memcpy(dst, src, len);
-
-	return sum;
-}
-
-/* Copy from userspace and compute checksum.  If we catch an exception
-   then zero the rest of the buffer.  */
-__wsum
-csum_partial_copy_from_user(const void __user *src, void *dst, int len,
-			    __wsum sum, int *err_ptr)
-{
-	int missing;
-
-	pr_debug
-	    ("csum_partial_copy_from_user src %p, dest %p, len %d, sum %08x, err_ptr %p\n",
-	     src, dst, len, sum, err_ptr);
-	missing = copy_from_user(dst, src, len);
-	pr_debug("  access_ok %d\n", __access_ok((unsigned long) src, len));
-	pr_debug("  missing %d\n", missing);
-	if (missing) {
-		memset(dst + len - missing, 0, missing);
-		*err_ptr = -EFAULT;
-	}
-
-	return csum_partial(dst, len, sum);
-}
-
-/* Copy to userspace and compute checksum.  */
-__wsum
-csum_partial_copy_to_user(const unsigned char *src, unsigned char *dst, int len,
-			  __wsum sum, int *err_ptr)
-{
-	sum = csum_partial(src, len, sum);
-
-	if (copy_to_user(dst, src, len))
-		*err_ptr = -EFAULT;
-
-	return sum;
-}
-
-/*
- *	This is a version of ip_compute_csum() optimized for IP headers,
- *	which always checksum on 4 octet boundaries.
- */
-__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
-{
-	pr_debug("ip_fast_csum %p,%d\n", iph, ihl);
-
-	return (__force __sum16)~do_csum(iph, ihl * 4);
-}
-
-__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
-				unsigned short len,
-				unsigned short proto, __wsum sum)
-{
-	unsigned long long result;
-
-	pr_debug("ntohs(0x%x)=0x%x\n", 0xdead, ntohs(0xdead));
-	pr_debug("htons(0x%x)=0x%x\n", 0xdead, htons(0xdead));
-
-	result = (__force u64) saddr + (__force u64) daddr +
-		 (__force u64) sum + ((len + proto) << 8);
-
-	/* Fold down to 32-bits so we don't loose in the typedef-less
-	   network stack.  */
-	/* 64 to 33 */
-	result = (result & 0xffffffff) + (result >> 32);
-	/* 33 to 32 */
-	result = (result & 0xffffffff) + (result >> 32);
-
-	pr_debug("%s saddr %x daddr %x len %x proto %x sum %x result %08Lx\n",
-		__FUNCTION__, saddr, daddr, len, proto, sum, result);
-
-	return (__wsum)result;
-}
-EXPORT_SYMBOL(csum_tcpudp_nofold);
diff --git a/arch/sh64/lib/copy_user_memcpy.S b/arch/sh64/lib/copy_user_memcpy.S
deleted file mode 100644
index 2a62816d2ddd..000000000000
--- a/arch/sh64/lib/copy_user_memcpy.S
+++ /dev/null
@@ -1,217 +0,0 @@
-!
-! Fast SH memcpy
-!
-! by Toshiyasu Morita (tm@netcom.com)
-! hacked by J"orn Rernnecke (joern.rennecke@superh.com) ("o for o-umlaut)
-! SH5 code Copyright 2002 SuperH Ltd.
-!
-! Entry: ARG0: destination pointer
-!        ARG1: source pointer
-!        ARG2: byte count
-!
-! Exit:  RESULT: destination pointer
-!        any other registers in the range r0-r7: trashed
-!
-! Notes: Usually one wants to do small reads and write a longword, but
-!        unfortunately it is difficult in some cases to concatanate bytes
-!        into a longword on the SH, so this does a longword read and small
-!        writes.
-!
-! This implementation makes two assumptions about how it is called:
-!
-! 1.: If the byte count is nonzero, the address of the last byte to be
-!     copied is unsigned greater than the address of the first byte to
-!     be copied.  This could be easily swapped for a signed comparison,
-!     but the algorithm used needs some comparison.
-!
-! 2.: When there are two or three bytes in the last word of an 11-or-more
-!     bytes memory chunk to b copied, the rest of the word can be read
-!     without side effects.
-!     This could be easily changed by increasing the minumum size of
-!     a fast memcpy and the amount subtracted from r7 before L_2l_loop be 2,
-!     however, this would cost a few extra cyles on average.
-!     For SHmedia, the assumption is that any quadword can be read in its
-!     enirety if at least one byte is included in the copy.
-
-/* Imported into Linux kernel by Richard Curnow.  This is used to implement the
-   __copy_user function in the general case, so it has to be a distinct
-   function from intra-kernel memcpy to allow for exception fix-ups in the
-   event that the user pointer is bad somewhere in the copy (e.g. due to
-   running off the end of the vma).
-
-   Note, this algorithm will be slightly wasteful in the case where the source
-   and destination pointers are equally aligned, because the stlo/sthi pairs
-   could then be merged back into single stores.  If there are a lot of cache
-   misses, this is probably offset by the stall lengths on the preloads.
-
-*/
-
-/* NOTE : Prefetches removed and allocos guarded by synco to avoid TAKum03020
- * erratum.  The first two prefetches are nop-ed out to avoid upsetting the
- * instruction counts used in the jump address calculation.
- * */
-
-	.section .text..SHmedia32,"ax"
-	.little
-	.balign 32
-	.global copy_user_memcpy
-	.global copy_user_memcpy_end
-copy_user_memcpy:
-
-#define LDUAQ(P,O,D0,D1) ldlo.q P,O,D0; ldhi.q P,O+7,D1
-#define STUAQ(P,O,D0,D1) stlo.q P,O,D0; sthi.q P,O+7,D1
-#define LDUAL(P,O,D0,D1) ldlo.l P,O,D0; ldhi.l P,O+3,D1
-#define STUAL(P,O,D0,D1) stlo.l P,O,D0; sthi.l P,O+3,D1
-
-	nop ! ld.b r3,0,r63 ! TAKum03020
-	pta/l Large,tr0
-	movi 25,r0
-	bgeu/u r4,r0,tr0
-	nsb r4,r0
-	shlli r0,5,r0
-	movi (L1-L0+63*32 + 1) & 0xffff,r1
-	sub r1, r0, r0
-L0:	ptrel r0,tr0
-	add r2,r4,r5
-	ptabs r18,tr1
-	add r3,r4,r6
-	blink tr0,r63
-
-/* Rearranged to make cut2 safe */
-	.balign 8
-L4_7:	/* 4..7 byte memcpy cntd. */
-	stlo.l r2, 0, r0
-	or r6, r7, r6
-	sthi.l r5, -1, r6
-	stlo.l r5, -4, r6
-	blink tr1,r63
-
-	.balign 8
-L1:	/* 0 byte memcpy */
-	nop
-	blink tr1,r63
-	nop
-	nop
-	nop
-	nop
-
-L2_3:	/* 2 or 3 byte memcpy cntd. */
-	st.b r5,-1,r6
-	blink tr1,r63
-
-	/* 1 byte memcpy */
-	ld.b r3,0,r0
-	st.b r2,0,r0
-	blink tr1,r63
-
-L8_15:	/* 8..15 byte memcpy cntd. */
-	stlo.q r2, 0, r0
-	or r6, r7, r6
-	sthi.q r5, -1, r6
-	stlo.q r5, -8, r6
-	blink tr1,r63
-
-	/* 2 or 3 byte memcpy */
-	ld.b r3,0,r0
-	nop ! ld.b r2,0,r63 ! TAKum03020
-	ld.b r3,1,r1
-	st.b r2,0,r0
-	pta/l L2_3,tr0
-	ld.b r6,-1,r6
-	st.b r2,1,r1
-	blink tr0, r63
-
-	/* 4 .. 7 byte memcpy */
-	LDUAL (r3, 0, r0, r1)
-	pta L4_7, tr0
-	ldlo.l r6, -4, r7
-	or r0, r1, r0
-	sthi.l r2, 3, r0
-	ldhi.l r6, -1, r6
-	blink tr0, r63
-
-	/* 8 .. 15 byte memcpy */
-	LDUAQ (r3, 0, r0, r1)
-	pta L8_15, tr0
-	ldlo.q r6, -8, r7
-	or r0, r1, r0
-	sthi.q r2, 7, r0
-	ldhi.q r6, -1, r6
-	blink tr0, r63
-
-	/* 16 .. 24 byte memcpy */
-	LDUAQ (r3, 0, r0, r1)
-	LDUAQ (r3, 8, r8, r9)
-	or r0, r1, r0
-	sthi.q r2, 7, r0
-	or r8, r9, r8
-	sthi.q r2, 15, r8
-	ldlo.q r6, -8, r7
-	ldhi.q r6, -1, r6
-	stlo.q r2, 8, r8
-	stlo.q r2, 0, r0
-	or r6, r7, r6
-	sthi.q r5, -1, r6
-	stlo.q r5, -8, r6
-	blink tr1,r63
-
-Large:
-	! ld.b r2, 0, r63 ! TAKum03020
-	pta/l  Loop_ua, tr1
-	ori r3, -8, r7
-	sub r2, r7, r22
-	sub r3, r2, r6
-	add r2, r4, r5
-	ldlo.q r3, 0, r0
-	addi r5, -16, r5
-	movi 64+8, r27 ! could subtract r7 from that.
-	stlo.q r2, 0, r0
-	sthi.q r2, 7, r0
-	ldx.q r22, r6, r0
-	bgtu/l r27, r4, tr1
-
-	addi r5, -48, r27
-	pta/l Loop_line, tr0
-	addi r6, 64, r36
-	addi r6, -24, r19
-	addi r6, -16, r20
-	addi r6, -8, r21
-
-Loop_line:
-	! ldx.q r22, r36, r63 ! TAKum03020
-	alloco r22, 32
-	synco
-	addi r22, 32, r22
-	ldx.q r22, r19, r23
-	sthi.q r22, -25, r0
-	ldx.q r22, r20, r24
-	ldx.q r22, r21, r25
-	stlo.q r22, -32, r0
-	ldx.q r22, r6,  r0
-	sthi.q r22, -17, r23
-	sthi.q r22,  -9, r24
-	sthi.q r22,  -1, r25
-	stlo.q r22, -24, r23
-	stlo.q r22, -16, r24
-	stlo.q r22,  -8, r25
-	bgeu r27, r22, tr0
-
-Loop_ua:
-	addi r22, 8, r22
-	sthi.q r22, -1, r0
-	stlo.q r22, -8, r0
-	ldx.q r22, r6, r0
-	bgtu/l r5, r22, tr1
-
-	add r3, r4, r7
-	ldlo.q r7, -8, r1
-	sthi.q r22, 7, r0
-	ldhi.q r7, -1, r7
-	ptabs r18,tr1
-	stlo.q r22, 0, r0
-	or r1, r7, r1
-	sthi.q r5, 15, r1
-	stlo.q r5, 8, r1
-	blink tr1, r63
-copy_user_memcpy_end:
-	nop
diff --git a/arch/sh64/lib/dbg.c b/arch/sh64/lib/dbg.c
deleted file mode 100644
index 97816e0baf19..000000000000
--- a/arch/sh64/lib/dbg.c
+++ /dev/null
@@ -1,430 +0,0 @@
-/*--------------------------------------------------------------------------
---
--- Identity : Linux50 Debug Funcions
---
--- File     : arch/sh64/lib/dbg.C
---
--- Copyright 2000, 2001 STMicroelectronics Limited.
--- Copyright 2004 Richard Curnow (evt_debug etc)
---
---------------------------------------------------------------------------*/
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <asm/mmu_context.h>
-
-typedef u64 regType_t;
-
-static regType_t getConfigReg(u64 id)
-{
-	register u64 reg __asm__("r2");
-	asm volatile ("getcfg   %1, 0, %0":"=r" (reg):"r"(id));
-	return (reg);
-}
-
-/* ======================================================================= */
-
-static char *szTab[] = { "4k", "64k", "1M", "512M" };
-static char *protTab[] = { "----",
-	"---R",
-	"--X-",
-	"--XR",
-	"-W--",
-	"-W-R",
-	"-WX-",
-	"-WXR",
-	"U---",
-	"U--R",
-	"U-X-",
-	"U-XR",
-	"UW--",
-	"UW-R",
-	"UWX-",
-	"UWXR"
-};
-#define  ITLB_BASE	0x00000000
-#define  DTLB_BASE	0x00800000
-#define  MAX_TLBs		64
-/* PTE High */
-#define  GET_VALID(pte)        ((pte) & 0x1)
-#define  GET_SHARED(pte)       ((pte) & 0x2)
-#define  GET_ASID(pte)         ((pte >> 2) & 0x0ff)
-#define  GET_EPN(pte)          ((pte) & 0xfffff000)
-
-/* PTE Low */
-#define  GET_CBEHAVIOR(pte)    ((pte) & 0x3)
-#define  GET_PAGE_SIZE(pte)    szTab[((pte >> 3) & 0x3)]
-#define  GET_PROTECTION(pte)   protTab[((pte >> 6) & 0xf)]
-#define  GET_PPN(pte)          ((pte) & 0xfffff000)
-
-#define PAGE_1K_MASK           0x00000000
-#define PAGE_4K_MASK           0x00000010
-#define PAGE_64K_MASK          0x00000080
-#define MMU_PAGESIZE_MASK      (PAGE_64K_MASK | PAGE_4K_MASK)
-#define PAGE_1MB_MASK          MMU_PAGESIZE_MASK
-#define PAGE_1K                (1024)
-#define PAGE_4K                (1024 * 4)
-#define PAGE_64K               (1024 * 64)
-#define PAGE_1MB               (1024 * 1024)
-
-#define HOW_TO_READ_TLB_CONTENT  \
-       "[ ID]  PPN         EPN        ASID  Share  CB  P.Size   PROT.\n"
-
-void print_single_tlb(unsigned long tlb, int single_print)
-{
-	regType_t pteH;
-	regType_t pteL;
-	unsigned int valid, shared, asid, epn, cb, ppn;
-	char *pSize;
-	char *pProt;
-
-	/*
-	   ** in case of single print <single_print> is true, this implies:
-	   **   1) print the TLB in any case also if NOT VALID
-	   **   2) print out the header
-	 */
-
-	pteH = getConfigReg(tlb);
-	valid = GET_VALID(pteH);
-	if (single_print)
-		printk(HOW_TO_READ_TLB_CONTENT);
-	else if (!valid)
-		return;
-
-	pteL = getConfigReg(tlb + 1);
-
-	shared = GET_SHARED(pteH);
-	asid = GET_ASID(pteH);
-	epn = GET_EPN(pteH);
-	cb = GET_CBEHAVIOR(pteL);
-	pSize = GET_PAGE_SIZE(pteL);
-	pProt = GET_PROTECTION(pteL);
-	ppn = GET_PPN(pteL);
-	printk("[%c%2ld]  0x%08x  0x%08x  %03d   %02x    %02x   %4s    %s\n",
-	       ((valid) ? ' ' : 'u'), ((tlb & 0x0ffff) / TLB_STEP),
-	       ppn, epn, asid, shared, cb, pSize, pProt);
-}
-
-void print_dtlb(void)
-{
-	int count;
-	unsigned long tlb;
-
-	printk(" ================= SH-5 D-TLBs Status ===================\n");
-	printk(HOW_TO_READ_TLB_CONTENT);
-	tlb = DTLB_BASE;
-	for (count = 0; count < MAX_TLBs; count++, tlb += TLB_STEP)
-		print_single_tlb(tlb, 0);
-	printk
-	    (" =============================================================\n");
-}
-
-void print_itlb(void)
-{
-	int count;
-	unsigned long tlb;
-
-	printk(" ================= SH-5 I-TLBs Status ===================\n");
-	printk(HOW_TO_READ_TLB_CONTENT);
-	tlb = ITLB_BASE;
-	for (count = 0; count < MAX_TLBs; count++, tlb += TLB_STEP)
-		print_single_tlb(tlb, 0);
-	printk
-	    (" =============================================================\n");
-}
-
-/* ======================================================================= */
-
-#ifdef CONFIG_POOR_MANS_STRACE
-
-#include "syscalltab.h"
-
-struct ring_node {
-	int evt;
-	int ret_addr;
-	int event;
-	int tra;
-	int pid;
-	unsigned long sp;
-	unsigned long pc;
-};
-
-static struct ring_node event_ring[16];
-static int event_ptr = 0;
-
-struct stored_syscall_data {
-	int pid;
-	int syscall_number;
-};
-
-#define N_STORED_SYSCALLS 16
-
-static struct stored_syscall_data stored_syscalls[N_STORED_SYSCALLS];
-static int syscall_next=0;
-static int syscall_next_print=0;
-
-void evt_debug(int evt, int ret_addr, int event, int tra, struct pt_regs *regs)
-{
-	int syscallno = tra & 0xff;
-	unsigned long sp;
-	unsigned long stack_bottom;
-	int pid;
-	struct ring_node *rr;
-
-	pid = current->pid;
-	stack_bottom = (unsigned long) task_stack_page(current);
-	asm volatile("ori r15, 0, %0" : "=r" (sp));
-	rr = event_ring + event_ptr;
-	rr->evt = evt;
-	rr->ret_addr = ret_addr;
-	rr->event = event;
-	rr->tra = tra;
-	rr->pid = pid;
-	rr->sp = sp;
-	rr->pc = regs->pc;
-
-	if (sp < stack_bottom + 3092) {
-		printk("evt_debug : stack underflow report\n");
-		int i, j;
-		for (j=0, i = event_ptr; j<16; j++) {
-			rr = event_ring + i;
-			printk("evt=%08x event=%08x tra=%08x pid=%5d sp=%08lx pc=%08lx\n",
-				rr->evt, rr->event, rr->tra, rr->pid, rr->sp, rr->pc);
-			i--;
-			i &= 15;
-		}
-		panic("STACK UNDERFLOW\n");
-	}
-
-	event_ptr = (event_ptr + 1) & 15;
-
-	if ((event == 2) && (evt == 0x160)) {
-		if (syscallno < NUM_SYSCALL_INFO_ENTRIES) {
-			/* Store the syscall information to print later.  We
-			 * can't print this now - currently we're running with
-			 * SR.BL=1, so we can't take a tlbmiss (which could occur
-			 * in the console drivers under printk).
-			 *
-			 * Just overwrite old entries on ring overflow - this
-			 * is only for last-hope debugging. */
-			stored_syscalls[syscall_next].pid = current->pid;
-			stored_syscalls[syscall_next].syscall_number = syscallno;
-			syscall_next++;
-			syscall_next &= (N_STORED_SYSCALLS - 1);
-		}
-	}
-}
-
-static void drain_syscalls(void) {
-	while (syscall_next_print != syscall_next) {
-		printk("Task %d: %s()\n",
-			stored_syscalls[syscall_next_print].pid,
-			syscall_info_table[stored_syscalls[syscall_next_print].syscall_number].name);
-			syscall_next_print++;
-			syscall_next_print &= (N_STORED_SYSCALLS - 1);
-	}
-}
-
-void evt_debug2(unsigned int ret)
-{
-	drain_syscalls();
-	printk("Task %d: syscall returns %08x\n", current->pid, ret);
-}
-
-void evt_debug_ret_from_irq(struct pt_regs *regs)
-{
-	int pid;
-	struct ring_node *rr;
-
-	pid = current->pid;
-	rr = event_ring + event_ptr;
-	rr->evt = 0xffff;
-	rr->ret_addr = 0;
-	rr->event = 0;
-	rr->tra = 0;
-	rr->pid = pid;
-	rr->pc = regs->pc;
-	event_ptr = (event_ptr + 1) & 15;
-}
-
-void evt_debug_ret_from_exc(struct pt_regs *regs)
-{
-	int pid;
-	struct ring_node *rr;
-
-	pid = current->pid;
-	rr = event_ring + event_ptr;
-	rr->evt = 0xfffe;
-	rr->ret_addr = 0;
-	rr->event = 0;
-	rr->tra = 0;
-	rr->pid = pid;
-	rr->pc = regs->pc;
-	event_ptr = (event_ptr + 1) & 15;
-}
-
-#endif /* CONFIG_POOR_MANS_STRACE */
-
-/* ======================================================================= */
-
-void show_excp_regs(char *from, int trapnr, int signr, struct pt_regs *regs)
-{
-
-	unsigned long long ah, al, bh, bl, ch, cl;
-
-	printk("\n");
-	printk("EXCEPTION - %s: task %d; Linux trap # %d; signal = %d\n",
-	       ((from) ? from : "???"), current->pid, trapnr, signr);
-
-	asm volatile ("getcon   " __EXPEVT ", %0":"=r"(ah));
-	asm volatile ("getcon   " __EXPEVT ", %0":"=r"(al));
-	ah = (ah) >> 32;
-	al = (al) & 0xffffffff;
-	asm volatile ("getcon   " __KCR1 ", %0":"=r"(bh));
-	asm volatile ("getcon   " __KCR1 ", %0":"=r"(bl));
-	bh = (bh) >> 32;
-	bl = (bl) & 0xffffffff;
-	asm volatile ("getcon   " __INTEVT ", %0":"=r"(ch));
-	asm volatile ("getcon   " __INTEVT ", %0":"=r"(cl));
-	ch = (ch) >> 32;
-	cl = (cl) & 0xffffffff;
-	printk("EXPE: %08Lx%08Lx KCR1: %08Lx%08Lx INTE: %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	asm volatile ("getcon   " __PEXPEVT ", %0":"=r"(ah));
-	asm volatile ("getcon   " __PEXPEVT ", %0":"=r"(al));
-	ah = (ah) >> 32;
-	al = (al) & 0xffffffff;
-	asm volatile ("getcon   " __PSPC ", %0":"=r"(bh));
-	asm volatile ("getcon   " __PSPC ", %0":"=r"(bl));
-	bh = (bh) >> 32;
-	bl = (bl) & 0xffffffff;
-	asm volatile ("getcon   " __PSSR ", %0":"=r"(ch));
-	asm volatile ("getcon   " __PSSR ", %0":"=r"(cl));
-	ch = (ch) >> 32;
-	cl = (cl) & 0xffffffff;
-	printk("PEXP: %08Lx%08Lx PSPC: %08Lx%08Lx PSSR: %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->pc) >> 32;
-	al = (regs->pc) & 0xffffffff;
-	bh = (regs->regs[18]) >> 32;
-	bl = (regs->regs[18]) & 0xffffffff;
-	ch = (regs->regs[15]) >> 32;
-	cl = (regs->regs[15]) & 0xffffffff;
-	printk("PC  : %08Lx%08Lx LINK: %08Lx%08Lx SP  : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->sr) >> 32;
-	al = (regs->sr) & 0xffffffff;
-	asm volatile ("getcon   " __TEA ", %0":"=r"(bh));
-	asm volatile ("getcon   " __TEA ", %0":"=r"(bl));
-	bh = (bh) >> 32;
-	bl = (bl) & 0xffffffff;
-	asm volatile ("getcon   " __KCR0 ", %0":"=r"(ch));
-	asm volatile ("getcon   " __KCR0 ", %0":"=r"(cl));
-	ch = (ch) >> 32;
-	cl = (cl) & 0xffffffff;
-	printk("SR  : %08Lx%08Lx TEA : %08Lx%08Lx KCR0: %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[0]) >> 32;
-	al = (regs->regs[0]) & 0xffffffff;
-	bh = (regs->regs[1]) >> 32;
-	bl = (regs->regs[1]) & 0xffffffff;
-	ch = (regs->regs[2]) >> 32;
-	cl = (regs->regs[2]) & 0xffffffff;
-	printk("R0  : %08Lx%08Lx R1  : %08Lx%08Lx R2  : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[3]) >> 32;
-	al = (regs->regs[3]) & 0xffffffff;
-	bh = (regs->regs[4]) >> 32;
-	bl = (regs->regs[4]) & 0xffffffff;
-	ch = (regs->regs[5]) >> 32;
-	cl = (regs->regs[5]) & 0xffffffff;
-	printk("R3  : %08Lx%08Lx R4  : %08Lx%08Lx R5  : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[6]) >> 32;
-	al = (regs->regs[6]) & 0xffffffff;
-	bh = (regs->regs[7]) >> 32;
-	bl = (regs->regs[7]) & 0xffffffff;
-	ch = (regs->regs[8]) >> 32;
-	cl = (regs->regs[8]) & 0xffffffff;
-	printk("R6  : %08Lx%08Lx R7  : %08Lx%08Lx R8  : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[9]) >> 32;
-	al = (regs->regs[9]) & 0xffffffff;
-	bh = (regs->regs[10]) >> 32;
-	bl = (regs->regs[10]) & 0xffffffff;
-	ch = (regs->regs[11]) >> 32;
-	cl = (regs->regs[11]) & 0xffffffff;
-	printk("R9  : %08Lx%08Lx R10 : %08Lx%08Lx R11 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-	printk("....\n");
-
-	ah = (regs->tregs[0]) >> 32;
-	al = (regs->tregs[0]) & 0xffffffff;
-	bh = (regs->tregs[1]) >> 32;
-	bl = (regs->tregs[1]) & 0xffffffff;
-	ch = (regs->tregs[2]) >> 32;
-	cl = (regs->tregs[2]) & 0xffffffff;
-	printk("T0  : %08Lx%08Lx T1  : %08Lx%08Lx T2  : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-	printk("....\n");
-
-	print_dtlb();
-	print_itlb();
-}
-
-/* ======================================================================= */
-
-/*
-** Depending on <base> scan the MMU, Data or Instruction side
-** looking for a valid mapping matching Eaddr & asid.
-** Return -1 if not found or the TLB id entry otherwise.
-** Note: it works only for 4k pages!
-*/
-static unsigned long
-lookup_mmu_side(unsigned long base, unsigned long Eaddr, unsigned long asid)
-{
-	regType_t pteH;
-	unsigned long epn;
-	int count;
-
-	epn = Eaddr & 0xfffff000;
-
-	for (count = 0; count < MAX_TLBs; count++, base += TLB_STEP) {
-		pteH = getConfigReg(base);
-		if (GET_VALID(pteH))
-			if ((unsigned long) GET_EPN(pteH) == epn)
-				if ((unsigned long) GET_ASID(pteH) == asid)
-					break;
-	}
-	return ((unsigned long) ((count < MAX_TLBs) ? base : -1));
-}
-
-unsigned long lookup_dtlb(unsigned long Eaddr)
-{
-	unsigned long asid = get_asid();
-	return (lookup_mmu_side((u64) DTLB_BASE, Eaddr, asid));
-}
-
-unsigned long lookup_itlb(unsigned long Eaddr)
-{
-	unsigned long asid = get_asid();
-	return (lookup_mmu_side((u64) ITLB_BASE, Eaddr, asid));
-}
-
-void print_page(struct page *page)
-{
-	printk("  page[%p] -> index 0x%lx,  count 0x%x,  flags 0x%lx\n",
-	       page, page->index, page_count(page), page->flags);
-	printk("       address_space = %p, pages =%ld\n", page->mapping,
-	       page->mapping->nrpages);
-
-}
diff --git a/arch/sh64/lib/io.c b/arch/sh64/lib/io.c
deleted file mode 100644
index a3f3a2b8e25b..000000000000
--- a/arch/sh64/lib/io.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * Copyright (C) 2000 David J. Mckay (david.mckay@st.com)
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.
- *
- * This file contains the I/O routines for use on the overdrive board
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-
-/*  Now for the string version of these functions */
-void outsb(unsigned long port, const void *addr, unsigned long count)
-{
-	int i;
-	unsigned char *p = (unsigned char *) addr;
-
-	for (i = 0; i < count; i++, p++) {
-		outb(*p, port);
-	}
-}
-EXPORT_SYMBOL(outsb);
-
-void insb(unsigned long port, void *addr, unsigned long count)
-{
-	int i;
-	unsigned char *p = (unsigned char *) addr;
-
-	for (i = 0; i < count; i++, p++) {
-		*p = inb(port);
-	}
-}
-EXPORT_SYMBOL(insb);
-
-/* For the 16 and 32 bit string functions, we have to worry about alignment.
- * The SH does not do unaligned accesses, so we have to read as bytes and
- * then write as a word or dword.
- * This can be optimised a lot more, especially in the case where the data
- * is aligned
- */
-
-void outsw(unsigned long port, const void *addr, unsigned long count)
-{
-	int i;
-	unsigned short tmp;
-	unsigned char *p = (unsigned char *) addr;
-
-	for (i = 0; i < count; i++, p += 2) {
-		tmp = (*p) | ((*(p + 1)) << 8);
-		outw(tmp, port);
-	}
-}
-EXPORT_SYMBOL(outsw);
-
-void insw(unsigned long port, void *addr, unsigned long count)
-{
-	int i;
-	unsigned short tmp;
-	unsigned char *p = (unsigned char *) addr;
-
-	for (i = 0; i < count; i++, p += 2) {
-		tmp = inw(port);
-		p[0] = tmp & 0xff;
-		p[1] = (tmp >> 8) & 0xff;
-	}
-}
-EXPORT_SYMBOL(insw);
-
-void outsl(unsigned long port, const void *addr, unsigned long count)
-{
-	int i;
-	unsigned tmp;
-	unsigned char *p = (unsigned char *) addr;
-
-	for (i = 0; i < count; i++, p += 4) {
-		tmp = (*p) | ((*(p + 1)) << 8) | ((*(p + 2)) << 16) |
-		    ((*(p + 3)) << 24);
-		outl(tmp, port);
-	}
-}
-EXPORT_SYMBOL(outsl);
-
-void insl(unsigned long port, void *addr, unsigned long count)
-{
-	int i;
-	unsigned tmp;
-	unsigned char *p = (unsigned char *) addr;
-
-	for (i = 0; i < count; i++, p += 4) {
-		tmp = inl(port);
-		p[0] = tmp & 0xff;
-		p[1] = (tmp >> 8) & 0xff;
-		p[2] = (tmp >> 16) & 0xff;
-		p[3] = (tmp >> 24) & 0xff;
-
-	}
-}
-EXPORT_SYMBOL(insl);
-
-void memcpy_toio(void __iomem *to, const void *from, long count)
-{
-	unsigned char *p = (unsigned char *) from;
-
-	while (count) {
-		count--;
-		writeb(*p++, to++);
-	}
-}
-EXPORT_SYMBOL(memcpy_toio);
-
-void memcpy_fromio(void *to, void __iomem *from, long count)
-{
-	int i;
-	unsigned char *p = (unsigned char *) to;
-
-	for (i = 0; i < count; i++) {
-		p[i] = readb(from);
-		from++;
-	}
-}
-EXPORT_SYMBOL(memcpy_fromio);
diff --git a/arch/sh64/lib/iomap.c b/arch/sh64/lib/iomap.c
deleted file mode 100644
index 253d1e351d49..000000000000
--- a/arch/sh64/lib/iomap.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * arch/sh64/lib/iomap.c
- *
- * Generic sh64 iomap interface
- *
- * Copyright (C) 2004  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/pci.h>
-#include <asm/io.h>
-
-void __iomem *__attribute__ ((weak))
-ioport_map(unsigned long port, unsigned int len)
-{
-	return (void __iomem *)port;
-}
-EXPORT_SYMBOL(ioport_map);
-
-void ioport_unmap(void __iomem *addr)
-{
-	/* Nothing .. */
-}
-EXPORT_SYMBOL(ioport_unmap);
-
-#ifdef CONFIG_PCI
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
-	unsigned long start = pci_resource_start(dev, bar);
-	unsigned long len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len)
-		return NULL;
-	if (max && len > max)
-		len = max;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start + pciio_virt, len);
-	if (flags & IORESOURCE_MEM)
-		return (void __iomem *)start;
-
-	/* What? */
-	return NULL;
-}
-EXPORT_SYMBOL(pci_iomap);
-
-void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
-{
-	/* Nothing .. */
-}
-EXPORT_SYMBOL(pci_iounmap);
-#endif
diff --git a/arch/sh64/lib/memcpy.c b/arch/sh64/lib/memcpy.c
deleted file mode 100644
index fba436a92bfa..000000000000
--- a/arch/sh64/lib/memcpy.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright (C) 2002 Mark Debbage (Mark.Debbage@superh.com)
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.
- *
- */
-
-#include <linux/types.h>
-#include <asm/string.h>
-
-// This is a simplistic optimization of memcpy to increase the
-// granularity of access beyond one byte using aligned
-// loads and stores. This is not an optimal implementation
-// for SH-5 (especially with regard to prefetching and the cache),
-// and a better version should be provided later ...
-
-void *memcpy(void *dest, const void *src, size_t count)
-{
-	char *d = (char *) dest, *s = (char *) src;
-
-	if (count >= 32) {
-		int i = 8 - (((unsigned long) d) & 0x7);
-
-		if (i != 8)
-			while (i-- && count--) {
-				*d++ = *s++;
-			}
-
-		if (((((unsigned long) d) & 0x7) == 0) &&
-		    ((((unsigned long) s) & 0x7) == 0)) {
-			while (count >= 32) {
-				unsigned long long t1, t2, t3, t4;
-				t1 = *(unsigned long long *) (s);
-				t2 = *(unsigned long long *) (s + 8);
-				t3 = *(unsigned long long *) (s + 16);
-				t4 = *(unsigned long long *) (s + 24);
-				*(unsigned long long *) (d) = t1;
-				*(unsigned long long *) (d + 8) = t2;
-				*(unsigned long long *) (d + 16) = t3;
-				*(unsigned long long *) (d + 24) = t4;
-				d += 32;
-				s += 32;
-				count -= 32;
-			}
-			while (count >= 8) {
-				*(unsigned long long *) d =
-				    *(unsigned long long *) s;
-				d += 8;
-				s += 8;
-				count -= 8;
-			}
-		}
-
-		if (((((unsigned long) d) & 0x3) == 0) &&
-		    ((((unsigned long) s) & 0x3) == 0)) {
-			while (count >= 4) {
-				*(unsigned long *) d = *(unsigned long *) s;
-				d += 4;
-				s += 4;
-				count -= 4;
-			}
-		}
-
-		if (((((unsigned long) d) & 0x1) == 0) &&
-		    ((((unsigned long) s) & 0x1) == 0)) {
-			while (count >= 2) {
-				*(unsigned short *) d = *(unsigned short *) s;
-				d += 2;
-				s += 2;
-				count -= 2;
-			}
-		}
-	}
-
-	while (count--) {
-		*d++ = *s++;
-	}
-
-	return d;
-}
diff --git a/arch/sh64/lib/page_clear.S b/arch/sh64/lib/page_clear.S
deleted file mode 100644
index ac0111d669a3..000000000000
--- a/arch/sh64/lib/page_clear.S
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
-   Copyright 2003 Richard Curnow, SuperH (UK) Ltd.
-
-   This file is subject to the terms and conditions of the GNU General Public
-   License.  See the file "COPYING" in the main directory of this archive
-   for more details.
-
-   Tight version of memset for the case of just clearing a page.  It turns out
-   that having the alloco's spaced out slightly due to the increment/branch
-   pair causes them to contend less for access to the cache.  Similarly,
-   keeping the stores apart from the allocos causes less contention.  => Do two
-   separate loops.  Do multiple stores per loop to amortise the
-   increment/branch cost a little.
-
-   Parameters:
-   r2 : source effective address (start of page)
-
-   Always clears 4096 bytes.
-
-   Note : alloco guarded by synco to avoid TAKum03020 erratum
-
-*/
-
-	.section .text..SHmedia32,"ax"
-	.little
-
-	.balign 8
-	.global sh64_page_clear
-sh64_page_clear:
-	pta/l 1f, tr1
-	pta/l 2f, tr2
-	ptabs/l r18, tr0
-
-	movi 4096, r7
-	add  r2, r7, r7
-	add  r2, r63, r6
-1:
-	alloco r6, 0
-	synco	! TAKum03020
-	addi	r6, 32, r6
-	bgt/l	r7, r6, tr1
-
-	add  r2, r63, r6
-2:
-	st.q  r6,   0, r63
-	st.q  r6,   8, r63
-	st.q  r6,  16, r63
-	st.q  r6,  24, r63
-	addi r6, 32, r6
-	bgt/l r7, r6, tr2
-
-	blink tr0, r63
-
-
diff --git a/arch/sh64/lib/page_copy.S b/arch/sh64/lib/page_copy.S
deleted file mode 100644
index e159c3cd2582..000000000000
--- a/arch/sh64/lib/page_copy.S
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
-   Copyright 2003 Richard Curnow, SuperH (UK) Ltd.
-
-   This file is subject to the terms and conditions of the GNU General Public
-   License.  See the file "COPYING" in the main directory of this archive
-   for more details.
-
-   Tight version of mempy for the case of just copying a page.
-   Prefetch strategy empirically optimised against RTL simulations
-   of SH5-101 cut2 eval chip with Cayman board DDR memory.
-
-   Parameters:
-   r2 : source effective address (start of page)
-   r3 : destination effective address (start of page)
-
-   Always copies 4096 bytes.
-
-   Points to review.
-   * Currently the prefetch is 4 lines ahead and the alloco is 2 lines ahead.
-     It seems like the prefetch needs to be at at least 4 lines ahead to get
-     the data into the cache in time, and the allocos contend with outstanding
-     prefetches for the same cache set, so it's better to have the numbers
-     different.
-   */
-
-	.section .text..SHmedia32,"ax"
-	.little
-
-	.balign 8
-	.global sh64_page_copy
-sh64_page_copy:
-
-	/* Copy 4096 bytes worth of data from r2 to r3.
-	   Do prefetches 4 lines ahead.
-	   Do alloco 2 lines ahead */
-
-	pta 1f, tr1
-	pta 2f, tr2
-	pta 3f, tr3
-	ptabs r18, tr0
-
-#if 0
-	/* TAKum03020 */
-	ld.q r2, 0x00, r63
-	ld.q r2, 0x20, r63
-	ld.q r2, 0x40, r63
-	ld.q r2, 0x60, r63
-#endif
-	alloco r3, 0x00
-	synco		! TAKum03020
-	alloco r3, 0x20
-	synco		! TAKum03020
-
-	movi 3968, r6
-	add  r3, r6, r6
-	addi r6, 64, r7
-	addi r7, 64, r8
-	sub r2, r3, r60
-	addi r60, 8, r61
-	addi r61, 8, r62
-	addi r62, 8, r23
-	addi r60, 0x80, r22
-
-/* Minimal code size.  The extra branches inside the loop don't cost much
-   because they overlap with the time spent waiting for prefetches to
-   complete. */
-1:
-#if 0
-	/* TAKum03020 */
-	bge/u r3, r6, tr2  ! skip prefetch for last 4 lines
-	ldx.q r3, r22, r63 ! prefetch 4 lines hence
-#endif
-2:
-	bge/u r3, r7, tr3  ! skip alloco for last 2 lines
-	alloco r3, 0x40    ! alloc destination line 2 lines ahead
-	synco		! TAKum03020
-3:
-	ldx.q r3, r60, r36
-	ldx.q r3, r61, r37
-	ldx.q r3, r62, r38
-	ldx.q r3, r23, r39
-	st.q  r3,   0, r36
-	st.q  r3,   8, r37
-	st.q  r3,  16, r38
-	st.q  r3,  24, r39
-	addi r3, 32, r3
-	bgt/l r8, r3, tr1
-
-	blink tr0, r63	   ! return
-
-
diff --git a/arch/sh64/lib/panic.c b/arch/sh64/lib/panic.c
deleted file mode 100644
index c9eb1cb50d97..000000000000
--- a/arch/sh64/lib/panic.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Copyright (C) 2003  Richard Curnow, SuperH UK Limited
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/kernel.h>
-#include <asm/io.h>
-#include <asm/registers.h>
-
-/* THIS IS A PHYSICAL ADDRESS */
-#define HDSP2534_ADDR (0x04002100)
-
-#ifdef CONFIG_SH_CAYMAN
-
-static void poor_mans_delay(void)
-{
-	int i;
-	for (i = 0; i < 2500000; i++) {
-	}		/* poor man's delay */
-}
-
-static void show_value(unsigned long x)
-{
-	int i;
-	unsigned nibble;
-	for (i = 0; i < 8; i++) {
-		nibble = ((x >> (i * 4)) & 0xf);
-
-		ctrl_outb(nibble + ((nibble > 9) ? 55 : 48),
-			  HDSP2534_ADDR + 0xe0 + ((7 - i) << 2));
-	}
-}
-
-#endif
-
-void
-panic_handler(unsigned long panicPC, unsigned long panicSSR,
-	      unsigned long panicEXPEVT)
-{
-#ifdef CONFIG_SH_CAYMAN
-	while (1) {
-		/* This piece of code displays the PC on the LED display */
-		show_value(panicPC);
-		poor_mans_delay();
-		show_value(panicSSR);
-		poor_mans_delay();
-		show_value(panicEXPEVT);
-		poor_mans_delay();
-	}
-#endif
-
-	/* Never return from the panic handler */
-	for (;;) ;
-
-}
diff --git a/arch/sh64/lib/udelay.c b/arch/sh64/lib/udelay.c
deleted file mode 100644
index 327653914007..000000000000
--- a/arch/sh64/lib/udelay.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * arch/sh64/lib/udelay.c
- *
- * Delay routines, using a pre-computed "loops_per_jiffy" value.
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003, 2004  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/sched.h>
-#include <asm/param.h>
-
-extern unsigned long loops_per_jiffy;
-
-/*
- * Use only for very small delays (< 1 msec).
- *
- * The active part of our cycle counter is only 32-bits wide, and
- * we're treating the difference between two marks as signed.  On
- * a 1GHz box, that's about 2 seconds.
- */
-
-void __delay(int loops)
-{
-	long long dummy;
-	__asm__ __volatile__("gettr	tr0, %1\n\t"
-			     "pta	$+4, tr0\n\t"
-			     "addi	%0, -1, %0\n\t"
-			     "bne	%0, r63, tr0\n\t"
-			     "ptabs	%1, tr0\n\t":"=r"(loops),
-			     "=r"(dummy)
-			     :"0"(loops));
-}
-
-void __udelay(unsigned long long usecs, unsigned long lpj)
-{
-	usecs *= (((unsigned long long) HZ << 32) / 1000000) * lpj;
-	__delay((long long) usecs >> 32);
-}
-
-void __ndelay(unsigned long long nsecs, unsigned long lpj)
-{
-	nsecs *= (((unsigned long long) HZ << 32) / 1000000000) * lpj;
-	__delay((long long) nsecs >> 32);
-}
-
-void udelay(unsigned long usecs)
-{
-	__udelay(usecs, loops_per_jiffy);
-}
-
-void ndelay(unsigned long nsecs)
-{
-	__ndelay(nsecs, loops_per_jiffy);
-}
-
-- 
cgit v1.2.3-59-g8ed1b


From c20c20047b1aa4ba6fc2bb4e9ab91402026c3e71 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 8 Nov 2007 18:52:35 +0900
Subject: sh: Plug SH-5 in to arch/sh/Makefile.

Adds the ISA tuning and a lib64 rule.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Makefile | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index e189fae8b60c..897f1c590fac 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -21,7 +21,7 @@ isa-$(CONFIG_CPU_SH3)			:= sh3
 isa-$(CONFIG_CPU_SH4)			:= sh4
 isa-$(CONFIG_CPU_SH4A)			:= sh4a
 isa-$(CONFIG_CPU_SH4AL_DSP)		:= sh4al
-
+isa-$(CONFIG_CPU_SH5)			:= shmedia
 isa-$(CONFIG_SH_DSP)			:= $(isa-y)-dsp
 
 ifndef CONFIG_MMU
@@ -44,6 +44,7 @@ cflags-$(CONFIG_CPU_SH4)		:= $(call cc-option,-m4,) \
 	$(call cc-option,-mno-implicit-fp,-m4-nofpu)
 cflags-$(CONFIG_CPU_SH4A)		+= $(call cc-option,-m4a,) \
 					   $(call cc-option,-m4a-nofpu,)
+cflags-$(CONFIG_CPU_SH5)		:= $(call cc-option,-m5-32media-nofpu,)
 
 cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= -mb
 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -ml
@@ -143,8 +144,11 @@ cpuincdir-$(CONFIG_CPU_SH2)	:= cpu-sh2
 cpuincdir-$(CONFIG_CPU_SH2A)	:= cpu-sh2a
 cpuincdir-$(CONFIG_CPU_SH3)	:= cpu-sh3
 cpuincdir-$(CONFIG_CPU_SH4)	:= cpu-sh4
+cpuincdir-$(CONFIG_CPU_SH5)	:= cpu-sh5
 
-libs-y				:= arch/sh/lib/	$(libs-y) $(LIBGCC)
+libs-$(CONFIG_SUPERH32)		:= arch/sh/lib/	$(libs-y)
+libs-$(CONFIG_SUPERH64)		:= arch/sh/lib64/ $(libs-y)
+libs-y				+= $(LIBGCC)
 
 drivers-y			+= arch/sh/drivers/
 drivers-$(CONFIG_OPROFILE)	+= arch/sh/oprofile/
-- 
cgit v1.2.3-59-g8ed1b


From a09063da33a222adaceea85c9d168cbbb3e626b0 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 8 Nov 2007 18:54:16 +0900
Subject: sh: Switch Kconfig.sh64 to use arch/sh/mm/Kconfig.

Consolidates the HUGETLB definitions and others.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig.sh64 | 25 +++++++------------------
 arch/sh/mm/Kconfig   | 10 +++++++---
 2 files changed, 14 insertions(+), 21 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/Kconfig.sh64 b/arch/sh/Kconfig.sh64
index 6884d5a518ad..20db5e0c1401 100644
--- a/arch/sh/Kconfig.sh64
+++ b/arch/sh/Kconfig.sh64
@@ -131,22 +131,6 @@ config SH64_PGTABLE_3_LEVEL
 
 endchoice
 
-choice
-	prompt "HugeTLB page size"
-	depends on HUGETLB_PAGE && MMU
-	default HUGETLB_PAGE_SIZE_64K
-
-config HUGETLB_PAGE_SIZE_64K
-	bool "64K"
-
-config HUGETLB_PAGE_SIZE_1MB
-	bool "1MB"
-
-config HUGETLB_PAGE_SIZE_512MB
-	bool "512MB"
-
-endchoice
-
 config SH64_USER_MISALIGNED_FIXUP
 	bool "Fixup misaligned loads/stores occurring in user mode"
 
@@ -226,7 +210,12 @@ config PREEMPT
 	bool "Preemptible Kernel (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 
-source "mm/Kconfig"
+config SH_PCLK_FREQ
+	int "Peripheral clock frequency (in Hz)"
+	default "50000000"
+
+source "kernel/Kconfig.hz"
+source "arch/sh/mm/Kconfig"
 
 endmenu
 
@@ -286,7 +275,7 @@ source "fs/Kconfig"
 
 source "kernel/Kconfig.instrumentation"
 
-source "arch/sh64/Kconfig.debug"
+source "arch/sh/Kconfig.debug"
 
 source "security/Kconfig"
 
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 998c5c86346f..a7bbc2cbbf8c 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -66,7 +66,7 @@ config X2TLB
 
 config VSYSCALL
 	bool "Support vsyscall page"
-	depends on MMU
+	depends on MMU && (CPU_SH3 || CPU_SH4)
 	default y
 	help
 	  This will enable support for the kernel mapping a vDSO page
@@ -175,6 +175,10 @@ config HUGETLB_PAGE_SIZE_64MB
 	bool "64MB"
 	depends on X2TLB
 
+config HUGETLB_PAGE_SIZE_512MB
+	bool "512MB"
+	depends on CPU_SH5
+
 endchoice
 
 source "mm/Kconfig"
@@ -202,12 +206,12 @@ config SH_DIRECT_MAPPED
 
 choice
 	prompt "Cache mode"
-	default CACHE_WRITEBACK if CPU_SH2A || CPU_SH3 || CPU_SH4
+	default CACHE_WRITEBACK if CPU_SH2A || CPU_SH3 || CPU_SH4 || CPU_SH5
 	default CACHE_WRITETHROUGH if (CPU_SH2 && !CPU_SH2A)
 
 config CACHE_WRITEBACK
 	bool "Write-back"
-	depends on CPU_SH2A || CPU_SH3 || CPU_SH4
+	depends on CPU_SH2A || CPU_SH3 || CPU_SH4 || CPU_SH5
 
 config CACHE_WRITETHROUGH
 	bool "Write-through"
-- 
cgit v1.2.3-59-g8ed1b


From db092ee6509ecd3f65843202982a8e2ff9e74cdd Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 8 Nov 2007 19:21:50 +0900
Subject: sh: Move sh64 boards to arch/sh/.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mach-cayman/Makefile   |  11 ++
 arch/sh/mach-cayman/iomap.c    |  22 ++++
 arch/sh/mach-cayman/irq.c      | 195 +++++++++++++++++++++++++++++++++
 arch/sh/mach-cayman/led.c      |  51 +++++++++
 arch/sh/mach-cayman/setup.c    | 239 +++++++++++++++++++++++++++++++++++++++++
 arch/sh/mach-harp/Makefile     |   1 +
 arch/sh/mach-harp/setup.c      | 129 ++++++++++++++++++++++
 arch/sh/mach-sim/Makefile      |   1 +
 arch/sh/mach-sim/setup.c       | 126 ++++++++++++++++++++++
 arch/sh64/mach-cayman/Makefile |  11 --
 arch/sh64/mach-cayman/iomap.c  |  22 ----
 arch/sh64/mach-cayman/irq.c    | 195 ---------------------------------
 arch/sh64/mach-cayman/led.c    |  51 ---------
 arch/sh64/mach-cayman/setup.c  | 239 -----------------------------------------
 arch/sh64/mach-harp/Makefile   |   1 -
 arch/sh64/mach-harp/setup.c    | 129 ----------------------
 arch/sh64/mach-sim/Makefile    |   1 -
 arch/sh64/mach-sim/setup.c     | 126 ----------------------
 18 files changed, 775 insertions(+), 775 deletions(-)
 create mode 100644 arch/sh/mach-cayman/Makefile
 create mode 100644 arch/sh/mach-cayman/iomap.c
 create mode 100644 arch/sh/mach-cayman/irq.c
 create mode 100644 arch/sh/mach-cayman/led.c
 create mode 100644 arch/sh/mach-cayman/setup.c
 create mode 100644 arch/sh/mach-harp/Makefile
 create mode 100644 arch/sh/mach-harp/setup.c
 create mode 100644 arch/sh/mach-sim/Makefile
 create mode 100644 arch/sh/mach-sim/setup.c
 delete mode 100644 arch/sh64/mach-cayman/Makefile
 delete mode 100644 arch/sh64/mach-cayman/iomap.c
 delete mode 100644 arch/sh64/mach-cayman/irq.c
 delete mode 100644 arch/sh64/mach-cayman/led.c
 delete mode 100644 arch/sh64/mach-cayman/setup.c
 delete mode 100644 arch/sh64/mach-harp/Makefile
 delete mode 100644 arch/sh64/mach-harp/setup.c
 delete mode 100644 arch/sh64/mach-sim/Makefile
 delete mode 100644 arch/sh64/mach-sim/setup.c

(limited to 'arch')

diff --git a/arch/sh/mach-cayman/Makefile b/arch/sh/mach-cayman/Makefile
new file mode 100644
index 000000000000..67a2258bf8c4
--- /dev/null
+++ b/arch/sh/mach-cayman/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for the Hitachi Cayman specific parts of the kernel
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+
+obj-y := setup.o irq.o iomap.o
+obj-$(CONFIG_HEARTBEAT)	+= led.o
+
diff --git a/arch/sh/mach-cayman/iomap.c b/arch/sh/mach-cayman/iomap.c
new file mode 100644
index 000000000000..a5c645f02d57
--- /dev/null
+++ b/arch/sh/mach-cayman/iomap.c
@@ -0,0 +1,22 @@
+/*
+ * arch/sh64/mach-cayman/iomap.c
+ *
+ * Cayman iomap interface
+ *
+ * Copyright (C) 2004  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <asm/io.h>
+#include <asm/cayman.h>
+
+void __iomem *ioport_map(unsigned long port, unsigned int len)
+{
+	if (port < 0x400)
+		return (void __iomem *)((port << 2) | smsc_superio_virt);
+
+	return (void __iomem *)port;
+}
+
diff --git a/arch/sh/mach-cayman/irq.c b/arch/sh/mach-cayman/irq.c
new file mode 100644
index 000000000000..aaad36d37d1f
--- /dev/null
+++ b/arch/sh/mach-cayman/irq.c
@@ -0,0 +1,195 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/kernel/irq_cayman.c
+ *
+ * SH-5 Cayman Interrupt Support
+ *
+ * This file handles the board specific parts of the Cayman interrupt system
+ *
+ * Copyright (C) 2002 Stuart Menefy
+ */
+
+#include <asm/irq.h>
+#include <asm/page.h>
+#include <asm/io.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/signal.h>
+#include <asm/cayman.h>
+
+unsigned long epld_virt;
+
+#define EPLD_BASE        0x04002000
+#define EPLD_STATUS_BASE (epld_virt + 0x10)
+#define EPLD_MASK_BASE   (epld_virt + 0x20)
+
+/* Note the SMSC SuperIO chip and SMSC LAN chip interrupts are all muxed onto
+   the same SH-5 interrupt */
+
+static irqreturn_t cayman_interrupt_smsc(int irq, void *dev_id)
+{
+        printk(KERN_INFO "CAYMAN: spurious SMSC interrupt\n");
+	return IRQ_NONE;
+}
+
+static irqreturn_t cayman_interrupt_pci2(int irq, void *dev_id)
+{
+        printk(KERN_INFO "CAYMAN: spurious PCI interrupt, IRQ %d\n", irq);
+	return IRQ_NONE;
+}
+
+static struct irqaction cayman_action_smsc = {
+	.name		= "Cayman SMSC Mux",
+	.handler	= cayman_interrupt_smsc,
+	.flags		= IRQF_DISABLED,
+};
+
+static struct irqaction cayman_action_pci2 = {
+	.name		= "Cayman PCI2 Mux",
+	.handler	= cayman_interrupt_pci2,
+	.flags		= IRQF_DISABLED,
+};
+
+static void enable_cayman_irq(unsigned int irq)
+{
+	unsigned long flags;
+	unsigned long mask;
+	unsigned int reg;
+	unsigned char bit;
+
+	irq -= START_EXT_IRQS;
+	reg = EPLD_MASK_BASE + ((irq / 8) << 2);
+	bit = 1<<(irq % 8);
+	local_irq_save(flags);
+	mask = ctrl_inl(reg);
+	mask |= bit;
+	ctrl_outl(mask, reg);
+	local_irq_restore(flags);
+}
+
+void disable_cayman_irq(unsigned int irq)
+{
+	unsigned long flags;
+	unsigned long mask;
+	unsigned int reg;
+	unsigned char bit;
+
+	irq -= START_EXT_IRQS;
+	reg = EPLD_MASK_BASE + ((irq / 8) << 2);
+	bit = 1<<(irq % 8);
+	local_irq_save(flags);
+	mask = ctrl_inl(reg);
+	mask &= ~bit;
+	ctrl_outl(mask, reg);
+	local_irq_restore(flags);
+}
+
+static void ack_cayman_irq(unsigned int irq)
+{
+	disable_cayman_irq(irq);
+}
+
+static void end_cayman_irq(unsigned int irq)
+{
+	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
+		enable_cayman_irq(irq);
+}
+
+static unsigned int startup_cayman_irq(unsigned int irq)
+{
+	enable_cayman_irq(irq);
+	return 0; /* never anything pending */
+}
+
+static void shutdown_cayman_irq(unsigned int irq)
+{
+	disable_cayman_irq(irq);
+}
+
+struct hw_interrupt_type cayman_irq_type = {
+	.typename	= "Cayman-IRQ",
+	.startup	= startup_cayman_irq,
+	.shutdown	= shutdown_cayman_irq,
+	.enable		= enable_cayman_irq,
+	.disable	= disable_cayman_irq,
+	.ack		= ack_cayman_irq,
+	.end		= end_cayman_irq,
+};
+
+int cayman_irq_demux(int evt)
+{
+	int irq = intc_evt_to_irq[evt];
+
+	if (irq == SMSC_IRQ) {
+		unsigned long status;
+		int i;
+
+		status = ctrl_inl(EPLD_STATUS_BASE) &
+			 ctrl_inl(EPLD_MASK_BASE) & 0xff;
+		if (status == 0) {
+			irq = -1;
+		} else {
+			for (i=0; i<8; i++) {
+				if (status & (1<<i))
+					break;
+			}
+			irq = START_EXT_IRQS + i;
+		}
+	}
+
+	if (irq == PCI2_IRQ) {
+		unsigned long status;
+		int i;
+
+		status = ctrl_inl(EPLD_STATUS_BASE + 3 * sizeof(u32)) &
+			 ctrl_inl(EPLD_MASK_BASE + 3 * sizeof(u32)) & 0xff;
+		if (status == 0) {
+			irq = -1;
+		} else {
+			for (i=0; i<8; i++) {
+				if (status & (1<<i))
+					break;
+			}
+			irq = START_EXT_IRQS + (3 * 8) + i;
+		}
+	}
+
+	return irq;
+}
+
+#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL)
+int cayman_irq_describe(char* p, int irq)
+{
+	if (irq < NR_INTC_IRQS) {
+		return intc_irq_describe(p, irq);
+	} else if (irq < NR_INTC_IRQS + 8) {
+		return sprintf(p, "(SMSC %d)", irq - NR_INTC_IRQS);
+	} else if ((irq >= NR_INTC_IRQS + 24) && (irq < NR_INTC_IRQS + 32)) {
+		return sprintf(p, "(PCI2 %d)", irq - (NR_INTC_IRQS + 24));
+	}
+
+	return 0;
+}
+#endif
+
+void init_cayman_irq(void)
+{
+	int i;
+
+	epld_virt = onchip_remap(EPLD_BASE, 1024, "EPLD");
+	if (!epld_virt) {
+		printk(KERN_ERR "Cayman IRQ: Unable to remap EPLD\n");
+		return;
+	}
+
+	for (i=0; i<NR_EXT_IRQS; i++) {
+		irq_desc[START_EXT_IRQS + i].chip = &cayman_irq_type;
+	}
+
+	/* Setup the SMSC interrupt */
+	setup_irq(SMSC_IRQ, &cayman_action_smsc);
+	setup_irq(PCI2_IRQ, &cayman_action_pci2);
+}
diff --git a/arch/sh/mach-cayman/led.c b/arch/sh/mach-cayman/led.c
new file mode 100644
index 000000000000..b4e122fd9502
--- /dev/null
+++ b/arch/sh/mach-cayman/led.c
@@ -0,0 +1,51 @@
+/*
+ * arch/sh64/mach-cayman/led.c
+ *
+ * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ * Flash the LEDs
+ */
+#include <asm/io.h>
+
+/*
+** It is supposed these functions to be used for a low level
+** debugging (via Cayman LEDs), hence to be available as soon
+** as possible.
+** Unfortunately Cayman LEDs relies on Cayman EPLD to be mapped
+** (this happen when IRQ are initialized... quite late).
+** These triky dependencies should be removed. Temporary, it
+** may be enough to NOP until EPLD is mapped.
+*/
+
+extern unsigned long epld_virt;
+
+#define LED_ADDR      (epld_virt + 0x008)
+#define HDSP2534_ADDR (epld_virt + 0x100)
+
+void mach_led(int position, int value)
+{
+	if (!epld_virt)
+		return;
+
+	if (value)
+		ctrl_outl(0, LED_ADDR);
+	else
+		ctrl_outl(1, LED_ADDR);
+
+}
+
+void mach_alphanum(int position, unsigned char value)
+{
+	if (!epld_virt)
+		return;
+
+	ctrl_outb(value, HDSP2534_ADDR + 0xe0 + (position << 2));
+}
+
+void mach_alphanum_brightness(int setting)
+{
+	ctrl_outb(setting & 7, HDSP2534_ADDR + 0xc0);
+}
diff --git a/arch/sh/mach-cayman/setup.c b/arch/sh/mach-cayman/setup.c
new file mode 100644
index 000000000000..726c520d7eb9
--- /dev/null
+++ b/arch/sh/mach-cayman/setup.c
@@ -0,0 +1,239 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/mach-cayman/setup.c
+ *
+ * SH5 Cayman support
+ *
+ * This file handles the architecture-dependent parts of initialization
+ *
+ * Copyright David J. Mckay.
+ * Needs major work!
+ *
+ * benedict.gaster@superh.com:	 3rd May 2002
+ *    Added support for ramdisk, removing statically linked romfs at the same time.
+ *
+ * lethal@linux-sh.org:          15th May 2003
+ *    Use the generic procfs cpuinfo interface, just return a valid board name.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <asm/platform.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+
+/*
+ * Platform Dependent Interrupt Priorities.
+ */
+
+/* Using defaults defined in irq.h */
+#define	RES NO_PRIORITY		/* Disabled */
+#define IR0 IRL0_PRIORITY	/* IRLs */
+#define IR1 IRL1_PRIORITY
+#define IR2 IRL2_PRIORITY
+#define IR3 IRL3_PRIORITY
+#define PCA INTA_PRIORITY	/* PCI Ints */
+#define PCB INTB_PRIORITY
+#define PCC INTC_PRIORITY
+#define PCD INTD_PRIORITY
+#define SER TOP_PRIORITY
+#define ERR TOP_PRIORITY
+#define PW0 TOP_PRIORITY
+#define PW1 TOP_PRIORITY
+#define PW2 TOP_PRIORITY
+#define PW3 TOP_PRIORITY
+#define DM0 NO_PRIORITY		/* DMA Ints */
+#define DM1 NO_PRIORITY
+#define DM2 NO_PRIORITY
+#define DM3 NO_PRIORITY
+#define DAE NO_PRIORITY
+#define TU0 TIMER_PRIORITY	/* TMU Ints */
+#define TU1 NO_PRIORITY
+#define TU2 NO_PRIORITY
+#define TI2 NO_PRIORITY
+#define ATI NO_PRIORITY		/* RTC Ints */
+#define PRI NO_PRIORITY
+#define CUI RTC_PRIORITY
+#define ERI SCIF_PRIORITY	/* SCIF Ints */
+#define RXI SCIF_PRIORITY
+#define BRI SCIF_PRIORITY
+#define TXI SCIF_PRIORITY
+#define ITI TOP_PRIORITY	/* WDT Ints */
+
+/* Setup for the SMSC FDC37C935 */
+#define SMSC_SUPERIO_BASE	0x04000000
+#define SMSC_CONFIG_PORT_ADDR	0x3f0
+#define SMSC_INDEX_PORT_ADDR	SMSC_CONFIG_PORT_ADDR
+#define SMSC_DATA_PORT_ADDR	0x3f1
+
+#define SMSC_ENTER_CONFIG_KEY	0x55
+#define SMSC_EXIT_CONFIG_KEY	0xaa
+
+#define SMCS_LOGICAL_DEV_INDEX	0x07
+#define SMSC_DEVICE_ID_INDEX	0x20
+#define SMSC_DEVICE_REV_INDEX	0x21
+#define SMSC_ACTIVATE_INDEX	0x30
+#define SMSC_PRIMARY_BASE_INDEX  0x60
+#define SMSC_SECONDARY_BASE_INDEX 0x62
+#define SMSC_PRIMARY_INT_INDEX	0x70
+#define SMSC_SECONDARY_INT_INDEX 0x72
+
+#define SMSC_IDE1_DEVICE	1
+#define SMSC_KEYBOARD_DEVICE	7
+#define SMSC_CONFIG_REGISTERS	8
+
+#define SMSC_SUPERIO_READ_INDEXED(index) ({ \
+	outb((index), SMSC_INDEX_PORT_ADDR); \
+	inb(SMSC_DATA_PORT_ADDR); })
+#define SMSC_SUPERIO_WRITE_INDEXED(val, index) ({ \
+	outb((index), SMSC_INDEX_PORT_ADDR); \
+	outb((val),   SMSC_DATA_PORT_ADDR); })
+
+#define IDE1_PRIMARY_BASE	0x01f0
+#define IDE1_SECONDARY_BASE	0x03f6
+
+unsigned long smsc_superio_virt;
+
+/*
+ * Platform dependent structures: maps and parms block.
+ */
+struct resource io_resources[] = {
+	/* To be updated with external devices */
+};
+
+struct resource kram_resources[] = {
+	/* These must be last in the array */
+	{ .name = "Kernel code", .start = 0, .end = 0 },
+	/* These must be last in the array */
+	{ .name = "Kernel data", .start = 0, .end = 0 }
+};
+
+struct resource xram_resources[] = {
+	/* To be updated with external devices */
+};
+
+struct resource rom_resources[] = {
+	/* To be updated with external devices */
+};
+
+struct sh64_platform platform_parms = {
+	.readonly_rootfs =	1,
+	.initial_root_dev =	0x0100,
+	.loader_type =		1,
+	.io_res_p =		io_resources,
+	.io_res_count =		ARRAY_SIZE(io_resources),
+	.kram_res_p =		kram_resources,
+	.kram_res_count =	ARRAY_SIZE(kram_resources),
+	.xram_res_p =		xram_resources,
+	.xram_res_count =	ARRAY_SIZE(xram_resources),
+	.rom_res_p =		rom_resources,
+	.rom_res_count =	ARRAY_SIZE(rom_resources),
+};
+
+int platform_int_priority[NR_INTC_IRQS] = {
+	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
+	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
+	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES,	/* IRQ 16-23 */
+	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 24-31 */
+	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI,	/* IRQ 32-39 */
+	RXI, BRI, TXI, RES, RES, RES, RES, RES,	/* IRQ 40-47 */
+	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 48-55 */
+	RES, RES, RES, RES, RES, RES, RES, ITI,	/* IRQ 56-63 */
+};
+
+static int __init smsc_superio_setup(void)
+{
+	unsigned char devid, devrev;
+
+	smsc_superio_virt = onchip_remap(SMSC_SUPERIO_BASE, 1024, "SMSC SuperIO");
+	if (!smsc_superio_virt) {
+		panic("Unable to remap SMSC SuperIO\n");
+	}
+
+	/* Initially the chip is in run state */
+	/* Put it into configuration state */
+	outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
+	outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
+
+	/* Read device ID info */
+	devid = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_ID_INDEX);
+	devrev = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_REV_INDEX);
+	printk("SMSC SuperIO devid %02x rev %02x\n", devid, devrev);
+
+	/* Select the keyboard device */
+	SMSC_SUPERIO_WRITE_INDEXED(SMSC_KEYBOARD_DEVICE, SMCS_LOGICAL_DEV_INDEX);
+
+	/* enable it */
+	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
+
+	/* Select the interrupts */
+	/* On a PC keyboard is IRQ1, mouse is IRQ12 */
+	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_PRIMARY_INT_INDEX);
+	SMSC_SUPERIO_WRITE_INDEXED(12, SMSC_SECONDARY_INT_INDEX);
+
+#ifdef CONFIG_IDE
+	/*
+	 * Only IDE1 exists on the Cayman
+	 */
+
+	/* Power it on */
+	SMSC_SUPERIO_WRITE_INDEXED(1 << SMSC_IDE1_DEVICE, 0x22);
+
+	SMSC_SUPERIO_WRITE_INDEXED(SMSC_IDE1_DEVICE, SMCS_LOGICAL_DEV_INDEX);
+	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
+
+	SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE >> 8,
+				   SMSC_PRIMARY_BASE_INDEX + 0);
+	SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE & 0xff,
+				   SMSC_PRIMARY_BASE_INDEX + 1);
+
+	SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE >> 8,
+				   SMSC_SECONDARY_BASE_INDEX + 0);
+	SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE & 0xff,
+				   SMSC_SECONDARY_BASE_INDEX + 1);
+
+	SMSC_SUPERIO_WRITE_INDEXED(14, SMSC_PRIMARY_INT_INDEX);
+
+	SMSC_SUPERIO_WRITE_INDEXED(SMSC_CONFIG_REGISTERS,
+				   SMCS_LOGICAL_DEV_INDEX);
+
+	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc2); /* GP42 = nIDE1_OE */
+	SMSC_SUPERIO_WRITE_INDEXED(0x01, 0xc5); /* GP45 = IDE1_IRQ */
+	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc6); /* GP46 = nIOROP */
+	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc7); /* GP47 = nIOWOP */
+#endif
+
+	/* Exit the configuration state */
+	outb(SMSC_EXIT_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
+
+	return 0;
+}
+
+/* This is grotty, but, because kernel is always referenced on the link line
+ * before any devices, this is safe.
+ */
+__initcall(smsc_superio_setup);
+
+void __init platform_setup(void)
+{
+	/* Cayman platform leaves the decision to head.S, for now */
+	platform_parms.fpu_flags = fpu_in_use;
+}
+
+void __init platform_monitor(void)
+{
+	/* Nothing yet .. */
+}
+
+void __init platform_reserve(void)
+{
+	/* Nothing yet .. */
+}
+
+const char *get_system_type(void)
+{
+	return "Hitachi Cayman";
+}
+
diff --git a/arch/sh/mach-harp/Makefile b/arch/sh/mach-harp/Makefile
new file mode 100644
index 000000000000..2f2963fa2131
--- /dev/null
+++ b/arch/sh/mach-harp/Makefile
@@ -0,0 +1 @@
+obj-y := setup.o
diff --git a/arch/sh/mach-harp/setup.c b/arch/sh/mach-harp/setup.c
new file mode 100644
index 000000000000..05011cb369bb
--- /dev/null
+++ b/arch/sh/mach-harp/setup.c
@@ -0,0 +1,129 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/mach-harp/setup.c
+ *
+ * SH-5 Simulator Platform Support
+ *
+ * This file handles the architecture-dependent parts of initialization
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ * benedict.gaster@superh.com:	 3rd May 2002
+ *    Added support for ramdisk, removing statically linked romfs at the same time. *
+ *
+ * lethal@linux-sh.org:          15th May 2003
+ *    Use the generic procfs cpuinfo interface, just return a valid board name.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <asm/platform.h>
+#include <asm/irq.h>
+
+/*
+ * Platform Dependent Interrupt Priorities.
+ */
+
+/* Using defaults defined in irq.h */
+#define	RES NO_PRIORITY		/* Disabled */
+#define IR0 IRL0_PRIORITY	/* IRLs */
+#define IR1 IRL1_PRIORITY
+#define IR2 IRL2_PRIORITY
+#define IR3 IRL3_PRIORITY
+#define PCA INTA_PRIORITY	/* PCI Ints */
+#define PCB INTB_PRIORITY
+#define PCC INTC_PRIORITY
+#define PCD INTD_PRIORITY
+#define SER TOP_PRIORITY
+#define ERR TOP_PRIORITY
+#define PW0 TOP_PRIORITY
+#define PW1 TOP_PRIORITY
+#define PW2 TOP_PRIORITY
+#define PW3 TOP_PRIORITY
+#define DM0 NO_PRIORITY		/* DMA Ints */
+#define DM1 NO_PRIORITY
+#define DM2 NO_PRIORITY
+#define DM3 NO_PRIORITY
+#define DAE NO_PRIORITY
+#define TU0 TIMER_PRIORITY	/* TMU Ints */
+#define TU1 NO_PRIORITY
+#define TU2 NO_PRIORITY
+#define TI2 NO_PRIORITY
+#define ATI NO_PRIORITY		/* RTC Ints */
+#define PRI NO_PRIORITY
+#define CUI RTC_PRIORITY
+#define ERI SCIF_PRIORITY	/* SCIF Ints */
+#define RXI SCIF_PRIORITY
+#define BRI SCIF_PRIORITY
+#define TXI SCIF_PRIORITY
+#define ITI TOP_PRIORITY	/* WDT Ints */
+
+/*
+ * Platform dependent structures: maps and parms block.
+ */
+struct resource io_resources[] = {
+	/* To be updated with external devices */
+};
+
+struct resource kram_resources[] = {
+	/* These must be last in the array */
+	{ .name = "Kernel code", .start = 0, .end = 0 },
+	/* These must be last in the array */
+	{ .name = "Kernel data", .start = 0, .end = 0 }
+};
+
+struct resource xram_resources[] = {
+	/* To be updated with external devices */
+};
+
+struct resource rom_resources[] = {
+	/* To be updated with external devices */
+};
+
+struct sh64_platform platform_parms = {
+	.readonly_rootfs =	1,
+	.initial_root_dev =	0x0100,
+	.loader_type =		1,
+	.io_res_p =		io_resources,
+	.io_res_count =		ARRAY_SIZE(io_resources),
+	.kram_res_p =		kram_resources,
+	.kram_res_count =	ARRAY_SIZE(kram_resources),
+	.xram_res_p =		xram_resources,
+	.xram_res_count =	ARRAY_SIZE(xram_resources),
+	.rom_res_p =		rom_resources,
+	.rom_res_count =	ARRAY_SIZE(rom_resources),
+};
+
+int platform_int_priority[NR_INTC_IRQS] = {
+	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
+	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
+	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES,	/* IRQ 16-23 */
+	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 24-31 */
+	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI,	/* IRQ 32-39 */
+	RXI, BRI, TXI, RES, RES, RES, RES, RES,	/* IRQ 40-47 */
+	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 48-55 */
+	RES, RES, RES, RES, RES, RES, RES, ITI,	/* IRQ 56-63 */
+};
+
+void __init platform_setup(void)
+{
+	/* Harp platform leaves the decision to head.S, for now */
+	platform_parms.fpu_flags = fpu_in_use;
+}
+
+void __init platform_monitor(void)
+{
+	/* Nothing yet .. */
+}
+
+void __init platform_reserve(void)
+{
+	/* Nothing yet .. */
+}
+
+const char *get_system_type(void)
+{
+	return "ST50 Harp";
+}
diff --git a/arch/sh/mach-sim/Makefile b/arch/sh/mach-sim/Makefile
new file mode 100644
index 000000000000..2f2963fa2131
--- /dev/null
+++ b/arch/sh/mach-sim/Makefile
@@ -0,0 +1 @@
+obj-y := setup.o
diff --git a/arch/sh/mach-sim/setup.c b/arch/sh/mach-sim/setup.c
new file mode 100644
index 000000000000..e3386ec1ce1f
--- /dev/null
+++ b/arch/sh/mach-sim/setup.c
@@ -0,0 +1,126 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/mach-sim/setup.c
+ *
+ * ST50 Simulator Platform Support
+ *
+ * This file handles the architecture-dependent parts of initialization
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ * lethal@linux-sh.org:          15th May 2003
+ *    Use the generic procfs cpuinfo interface, just return a valid board name.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <asm/platform.h>
+#include <asm/irq.h>
+
+/*
+ * Platform Dependent Interrupt Priorities.
+ */
+
+/* Using defaults defined in irq.h */
+#define	RES NO_PRIORITY		/* Disabled */
+#define IR0 IRL0_PRIORITY	/* IRLs */
+#define IR1 IRL1_PRIORITY
+#define IR2 IRL2_PRIORITY
+#define IR3 IRL3_PRIORITY
+#define PCA INTA_PRIORITY	/* PCI Ints */
+#define PCB INTB_PRIORITY
+#define PCC INTC_PRIORITY
+#define PCD INTD_PRIORITY
+#define SER TOP_PRIORITY
+#define ERR TOP_PRIORITY
+#define PW0 TOP_PRIORITY
+#define PW1 TOP_PRIORITY
+#define PW2 TOP_PRIORITY
+#define PW3 TOP_PRIORITY
+#define DM0 NO_PRIORITY		/* DMA Ints */
+#define DM1 NO_PRIORITY
+#define DM2 NO_PRIORITY
+#define DM3 NO_PRIORITY
+#define DAE NO_PRIORITY
+#define TU0 TIMER_PRIORITY	/* TMU Ints */
+#define TU1 NO_PRIORITY
+#define TU2 NO_PRIORITY
+#define TI2 NO_PRIORITY
+#define ATI NO_PRIORITY		/* RTC Ints */
+#define PRI NO_PRIORITY
+#define CUI RTC_PRIORITY
+#define ERI SCIF_PRIORITY	/* SCIF Ints */
+#define RXI SCIF_PRIORITY
+#define BRI SCIF_PRIORITY
+#define TXI SCIF_PRIORITY
+#define ITI TOP_PRIORITY	/* WDT Ints */
+
+/*
+ * Platform dependent structures: maps and parms block.
+ */
+struct resource io_resources[] = {
+	/* Nothing yet .. */
+};
+
+struct resource kram_resources[] = {
+	/* These must be last in the array */
+	{ .name = "Kernel code", .start = 0, .end = 0 },
+	/* These must be last in the array */
+	{ .name = "Kernel data", .start = 0, .end = 0 }
+};
+
+struct resource xram_resources[] = {
+	/* Nothing yet .. */
+};
+
+struct resource rom_resources[] = {
+	/* Nothing yet .. */
+};
+
+struct sh64_platform platform_parms = {
+	.readonly_rootfs =	1,
+	.initial_root_dev =	0x0100,
+	.loader_type =		1,
+	.io_res_p =		io_resources,
+	.io_res_count =		ARRAY_SIZE(io_resources),
+	.kram_res_p =		kram_resources,
+	.kram_res_count =	ARRAY_SIZE(kram_resources),
+	.xram_res_p =		xram_resources,
+	.xram_res_count =	ARRAY_SIZE(xram_resources),
+	.rom_res_p =		rom_resources,
+	.rom_res_count =	ARRAY_SIZE(rom_resources),
+};
+
+int platform_int_priority[NR_IRQS] = {
+	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
+	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
+	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES,	/* IRQ 16-23 */
+	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 24-31 */
+	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI,	/* IRQ 32-39 */
+	RXI, BRI, TXI, RES, RES, RES, RES, RES,	/* IRQ 40-47 */
+	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 48-55 */
+	RES, RES, RES, RES, RES, RES, RES, ITI,	/* IRQ 56-63 */
+};
+
+void __init platform_setup(void)
+{
+	/* Simulator platform leaves the decision to head.S */
+	platform_parms.fpu_flags = fpu_in_use;
+}
+
+void __init platform_monitor(void)
+{
+	/* Nothing yet .. */
+}
+
+void __init platform_reserve(void)
+{
+	/* Nothing yet .. */
+}
+
+const char *get_system_type(void)
+{
+	return "SH-5 Simulator";
+}
diff --git a/arch/sh64/mach-cayman/Makefile b/arch/sh64/mach-cayman/Makefile
deleted file mode 100644
index 67a2258bf8c4..000000000000
--- a/arch/sh64/mach-cayman/Makefile
+++ /dev/null
@@ -1,11 +0,0 @@
-#
-# Makefile for the Hitachi Cayman specific parts of the kernel
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-obj-y := setup.o irq.o iomap.o
-obj-$(CONFIG_HEARTBEAT)	+= led.o
-
diff --git a/arch/sh64/mach-cayman/iomap.c b/arch/sh64/mach-cayman/iomap.c
deleted file mode 100644
index a5c645f02d57..000000000000
--- a/arch/sh64/mach-cayman/iomap.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * arch/sh64/mach-cayman/iomap.c
- *
- * Cayman iomap interface
- *
- * Copyright (C) 2004  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <asm/io.h>
-#include <asm/cayman.h>
-
-void __iomem *ioport_map(unsigned long port, unsigned int len)
-{
-	if (port < 0x400)
-		return (void __iomem *)((port << 2) | smsc_superio_virt);
-
-	return (void __iomem *)port;
-}
-
diff --git a/arch/sh64/mach-cayman/irq.c b/arch/sh64/mach-cayman/irq.c
deleted file mode 100644
index aaad36d37d1f..000000000000
--- a/arch/sh64/mach-cayman/irq.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/irq_cayman.c
- *
- * SH-5 Cayman Interrupt Support
- *
- * This file handles the board specific parts of the Cayman interrupt system
- *
- * Copyright (C) 2002 Stuart Menefy
- */
-
-#include <asm/irq.h>
-#include <asm/page.h>
-#include <asm/io.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/signal.h>
-#include <asm/cayman.h>
-
-unsigned long epld_virt;
-
-#define EPLD_BASE        0x04002000
-#define EPLD_STATUS_BASE (epld_virt + 0x10)
-#define EPLD_MASK_BASE   (epld_virt + 0x20)
-
-/* Note the SMSC SuperIO chip and SMSC LAN chip interrupts are all muxed onto
-   the same SH-5 interrupt */
-
-static irqreturn_t cayman_interrupt_smsc(int irq, void *dev_id)
-{
-        printk(KERN_INFO "CAYMAN: spurious SMSC interrupt\n");
-	return IRQ_NONE;
-}
-
-static irqreturn_t cayman_interrupt_pci2(int irq, void *dev_id)
-{
-        printk(KERN_INFO "CAYMAN: spurious PCI interrupt, IRQ %d\n", irq);
-	return IRQ_NONE;
-}
-
-static struct irqaction cayman_action_smsc = {
-	.name		= "Cayman SMSC Mux",
-	.handler	= cayman_interrupt_smsc,
-	.flags		= IRQF_DISABLED,
-};
-
-static struct irqaction cayman_action_pci2 = {
-	.name		= "Cayman PCI2 Mux",
-	.handler	= cayman_interrupt_pci2,
-	.flags		= IRQF_DISABLED,
-};
-
-static void enable_cayman_irq(unsigned int irq)
-{
-	unsigned long flags;
-	unsigned long mask;
-	unsigned int reg;
-	unsigned char bit;
-
-	irq -= START_EXT_IRQS;
-	reg = EPLD_MASK_BASE + ((irq / 8) << 2);
-	bit = 1<<(irq % 8);
-	local_irq_save(flags);
-	mask = ctrl_inl(reg);
-	mask |= bit;
-	ctrl_outl(mask, reg);
-	local_irq_restore(flags);
-}
-
-void disable_cayman_irq(unsigned int irq)
-{
-	unsigned long flags;
-	unsigned long mask;
-	unsigned int reg;
-	unsigned char bit;
-
-	irq -= START_EXT_IRQS;
-	reg = EPLD_MASK_BASE + ((irq / 8) << 2);
-	bit = 1<<(irq % 8);
-	local_irq_save(flags);
-	mask = ctrl_inl(reg);
-	mask &= ~bit;
-	ctrl_outl(mask, reg);
-	local_irq_restore(flags);
-}
-
-static void ack_cayman_irq(unsigned int irq)
-{
-	disable_cayman_irq(irq);
-}
-
-static void end_cayman_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_cayman_irq(irq);
-}
-
-static unsigned int startup_cayman_irq(unsigned int irq)
-{
-	enable_cayman_irq(irq);
-	return 0; /* never anything pending */
-}
-
-static void shutdown_cayman_irq(unsigned int irq)
-{
-	disable_cayman_irq(irq);
-}
-
-struct hw_interrupt_type cayman_irq_type = {
-	.typename	= "Cayman-IRQ",
-	.startup	= startup_cayman_irq,
-	.shutdown	= shutdown_cayman_irq,
-	.enable		= enable_cayman_irq,
-	.disable	= disable_cayman_irq,
-	.ack		= ack_cayman_irq,
-	.end		= end_cayman_irq,
-};
-
-int cayman_irq_demux(int evt)
-{
-	int irq = intc_evt_to_irq[evt];
-
-	if (irq == SMSC_IRQ) {
-		unsigned long status;
-		int i;
-
-		status = ctrl_inl(EPLD_STATUS_BASE) &
-			 ctrl_inl(EPLD_MASK_BASE) & 0xff;
-		if (status == 0) {
-			irq = -1;
-		} else {
-			for (i=0; i<8; i++) {
-				if (status & (1<<i))
-					break;
-			}
-			irq = START_EXT_IRQS + i;
-		}
-	}
-
-	if (irq == PCI2_IRQ) {
-		unsigned long status;
-		int i;
-
-		status = ctrl_inl(EPLD_STATUS_BASE + 3 * sizeof(u32)) &
-			 ctrl_inl(EPLD_MASK_BASE + 3 * sizeof(u32)) & 0xff;
-		if (status == 0) {
-			irq = -1;
-		} else {
-			for (i=0; i<8; i++) {
-				if (status & (1<<i))
-					break;
-			}
-			irq = START_EXT_IRQS + (3 * 8) + i;
-		}
-	}
-
-	return irq;
-}
-
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL)
-int cayman_irq_describe(char* p, int irq)
-{
-	if (irq < NR_INTC_IRQS) {
-		return intc_irq_describe(p, irq);
-	} else if (irq < NR_INTC_IRQS + 8) {
-		return sprintf(p, "(SMSC %d)", irq - NR_INTC_IRQS);
-	} else if ((irq >= NR_INTC_IRQS + 24) && (irq < NR_INTC_IRQS + 32)) {
-		return sprintf(p, "(PCI2 %d)", irq - (NR_INTC_IRQS + 24));
-	}
-
-	return 0;
-}
-#endif
-
-void init_cayman_irq(void)
-{
-	int i;
-
-	epld_virt = onchip_remap(EPLD_BASE, 1024, "EPLD");
-	if (!epld_virt) {
-		printk(KERN_ERR "Cayman IRQ: Unable to remap EPLD\n");
-		return;
-	}
-
-	for (i=0; i<NR_EXT_IRQS; i++) {
-		irq_desc[START_EXT_IRQS + i].chip = &cayman_irq_type;
-	}
-
-	/* Setup the SMSC interrupt */
-	setup_irq(SMSC_IRQ, &cayman_action_smsc);
-	setup_irq(PCI2_IRQ, &cayman_action_pci2);
-}
diff --git a/arch/sh64/mach-cayman/led.c b/arch/sh64/mach-cayman/led.c
deleted file mode 100644
index b4e122fd9502..000000000000
--- a/arch/sh64/mach-cayman/led.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * arch/sh64/mach-cayman/led.c
- *
- * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.
- *
- * Flash the LEDs
- */
-#include <asm/io.h>
-
-/*
-** It is supposed these functions to be used for a low level
-** debugging (via Cayman LEDs), hence to be available as soon
-** as possible.
-** Unfortunately Cayman LEDs relies on Cayman EPLD to be mapped
-** (this happen when IRQ are initialized... quite late).
-** These triky dependencies should be removed. Temporary, it
-** may be enough to NOP until EPLD is mapped.
-*/
-
-extern unsigned long epld_virt;
-
-#define LED_ADDR      (epld_virt + 0x008)
-#define HDSP2534_ADDR (epld_virt + 0x100)
-
-void mach_led(int position, int value)
-{
-	if (!epld_virt)
-		return;
-
-	if (value)
-		ctrl_outl(0, LED_ADDR);
-	else
-		ctrl_outl(1, LED_ADDR);
-
-}
-
-void mach_alphanum(int position, unsigned char value)
-{
-	if (!epld_virt)
-		return;
-
-	ctrl_outb(value, HDSP2534_ADDR + 0xe0 + (position << 2));
-}
-
-void mach_alphanum_brightness(int setting)
-{
-	ctrl_outb(setting & 7, HDSP2534_ADDR + 0xc0);
-}
diff --git a/arch/sh64/mach-cayman/setup.c b/arch/sh64/mach-cayman/setup.c
deleted file mode 100644
index 726c520d7eb9..000000000000
--- a/arch/sh64/mach-cayman/setup.c
+++ /dev/null
@@ -1,239 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mach-cayman/setup.c
- *
- * SH5 Cayman support
- *
- * This file handles the architecture-dependent parts of initialization
- *
- * Copyright David J. Mckay.
- * Needs major work!
- *
- * benedict.gaster@superh.com:	 3rd May 2002
- *    Added support for ramdisk, removing statically linked romfs at the same time.
- *
- * lethal@linux-sh.org:          15th May 2003
- *    Use the generic procfs cpuinfo interface, just return a valid board name.
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <asm/platform.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-
-/*
- * Platform Dependent Interrupt Priorities.
- */
-
-/* Using defaults defined in irq.h */
-#define	RES NO_PRIORITY		/* Disabled */
-#define IR0 IRL0_PRIORITY	/* IRLs */
-#define IR1 IRL1_PRIORITY
-#define IR2 IRL2_PRIORITY
-#define IR3 IRL3_PRIORITY
-#define PCA INTA_PRIORITY	/* PCI Ints */
-#define PCB INTB_PRIORITY
-#define PCC INTC_PRIORITY
-#define PCD INTD_PRIORITY
-#define SER TOP_PRIORITY
-#define ERR TOP_PRIORITY
-#define PW0 TOP_PRIORITY
-#define PW1 TOP_PRIORITY
-#define PW2 TOP_PRIORITY
-#define PW3 TOP_PRIORITY
-#define DM0 NO_PRIORITY		/* DMA Ints */
-#define DM1 NO_PRIORITY
-#define DM2 NO_PRIORITY
-#define DM3 NO_PRIORITY
-#define DAE NO_PRIORITY
-#define TU0 TIMER_PRIORITY	/* TMU Ints */
-#define TU1 NO_PRIORITY
-#define TU2 NO_PRIORITY
-#define TI2 NO_PRIORITY
-#define ATI NO_PRIORITY		/* RTC Ints */
-#define PRI NO_PRIORITY
-#define CUI RTC_PRIORITY
-#define ERI SCIF_PRIORITY	/* SCIF Ints */
-#define RXI SCIF_PRIORITY
-#define BRI SCIF_PRIORITY
-#define TXI SCIF_PRIORITY
-#define ITI TOP_PRIORITY	/* WDT Ints */
-
-/* Setup for the SMSC FDC37C935 */
-#define SMSC_SUPERIO_BASE	0x04000000
-#define SMSC_CONFIG_PORT_ADDR	0x3f0
-#define SMSC_INDEX_PORT_ADDR	SMSC_CONFIG_PORT_ADDR
-#define SMSC_DATA_PORT_ADDR	0x3f1
-
-#define SMSC_ENTER_CONFIG_KEY	0x55
-#define SMSC_EXIT_CONFIG_KEY	0xaa
-
-#define SMCS_LOGICAL_DEV_INDEX	0x07
-#define SMSC_DEVICE_ID_INDEX	0x20
-#define SMSC_DEVICE_REV_INDEX	0x21
-#define SMSC_ACTIVATE_INDEX	0x30
-#define SMSC_PRIMARY_BASE_INDEX  0x60
-#define SMSC_SECONDARY_BASE_INDEX 0x62
-#define SMSC_PRIMARY_INT_INDEX	0x70
-#define SMSC_SECONDARY_INT_INDEX 0x72
-
-#define SMSC_IDE1_DEVICE	1
-#define SMSC_KEYBOARD_DEVICE	7
-#define SMSC_CONFIG_REGISTERS	8
-
-#define SMSC_SUPERIO_READ_INDEXED(index) ({ \
-	outb((index), SMSC_INDEX_PORT_ADDR); \
-	inb(SMSC_DATA_PORT_ADDR); })
-#define SMSC_SUPERIO_WRITE_INDEXED(val, index) ({ \
-	outb((index), SMSC_INDEX_PORT_ADDR); \
-	outb((val),   SMSC_DATA_PORT_ADDR); })
-
-#define IDE1_PRIMARY_BASE	0x01f0
-#define IDE1_SECONDARY_BASE	0x03f6
-
-unsigned long smsc_superio_virt;
-
-/*
- * Platform dependent structures: maps and parms block.
- */
-struct resource io_resources[] = {
-	/* To be updated with external devices */
-};
-
-struct resource kram_resources[] = {
-	/* These must be last in the array */
-	{ .name = "Kernel code", .start = 0, .end = 0 },
-	/* These must be last in the array */
-	{ .name = "Kernel data", .start = 0, .end = 0 }
-};
-
-struct resource xram_resources[] = {
-	/* To be updated with external devices */
-};
-
-struct resource rom_resources[] = {
-	/* To be updated with external devices */
-};
-
-struct sh64_platform platform_parms = {
-	.readonly_rootfs =	1,
-	.initial_root_dev =	0x0100,
-	.loader_type =		1,
-	.io_res_p =		io_resources,
-	.io_res_count =		ARRAY_SIZE(io_resources),
-	.kram_res_p =		kram_resources,
-	.kram_res_count =	ARRAY_SIZE(kram_resources),
-	.xram_res_p =		xram_resources,
-	.xram_res_count =	ARRAY_SIZE(xram_resources),
-	.rom_res_p =		rom_resources,
-	.rom_res_count =	ARRAY_SIZE(rom_resources),
-};
-
-int platform_int_priority[NR_INTC_IRQS] = {
-	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
-	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
-	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES,	/* IRQ 16-23 */
-	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 24-31 */
-	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI,	/* IRQ 32-39 */
-	RXI, BRI, TXI, RES, RES, RES, RES, RES,	/* IRQ 40-47 */
-	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 48-55 */
-	RES, RES, RES, RES, RES, RES, RES, ITI,	/* IRQ 56-63 */
-};
-
-static int __init smsc_superio_setup(void)
-{
-	unsigned char devid, devrev;
-
-	smsc_superio_virt = onchip_remap(SMSC_SUPERIO_BASE, 1024, "SMSC SuperIO");
-	if (!smsc_superio_virt) {
-		panic("Unable to remap SMSC SuperIO\n");
-	}
-
-	/* Initially the chip is in run state */
-	/* Put it into configuration state */
-	outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
-	outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
-
-	/* Read device ID info */
-	devid = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_ID_INDEX);
-	devrev = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_REV_INDEX);
-	printk("SMSC SuperIO devid %02x rev %02x\n", devid, devrev);
-
-	/* Select the keyboard device */
-	SMSC_SUPERIO_WRITE_INDEXED(SMSC_KEYBOARD_DEVICE, SMCS_LOGICAL_DEV_INDEX);
-
-	/* enable it */
-	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
-
-	/* Select the interrupts */
-	/* On a PC keyboard is IRQ1, mouse is IRQ12 */
-	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_PRIMARY_INT_INDEX);
-	SMSC_SUPERIO_WRITE_INDEXED(12, SMSC_SECONDARY_INT_INDEX);
-
-#ifdef CONFIG_IDE
-	/*
-	 * Only IDE1 exists on the Cayman
-	 */
-
-	/* Power it on */
-	SMSC_SUPERIO_WRITE_INDEXED(1 << SMSC_IDE1_DEVICE, 0x22);
-
-	SMSC_SUPERIO_WRITE_INDEXED(SMSC_IDE1_DEVICE, SMCS_LOGICAL_DEV_INDEX);
-	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
-
-	SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE >> 8,
-				   SMSC_PRIMARY_BASE_INDEX + 0);
-	SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE & 0xff,
-				   SMSC_PRIMARY_BASE_INDEX + 1);
-
-	SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE >> 8,
-				   SMSC_SECONDARY_BASE_INDEX + 0);
-	SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE & 0xff,
-				   SMSC_SECONDARY_BASE_INDEX + 1);
-
-	SMSC_SUPERIO_WRITE_INDEXED(14, SMSC_PRIMARY_INT_INDEX);
-
-	SMSC_SUPERIO_WRITE_INDEXED(SMSC_CONFIG_REGISTERS,
-				   SMCS_LOGICAL_DEV_INDEX);
-
-	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc2); /* GP42 = nIDE1_OE */
-	SMSC_SUPERIO_WRITE_INDEXED(0x01, 0xc5); /* GP45 = IDE1_IRQ */
-	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc6); /* GP46 = nIOROP */
-	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc7); /* GP47 = nIOWOP */
-#endif
-
-	/* Exit the configuration state */
-	outb(SMSC_EXIT_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
-
-	return 0;
-}
-
-/* This is grotty, but, because kernel is always referenced on the link line
- * before any devices, this is safe.
- */
-__initcall(smsc_superio_setup);
-
-void __init platform_setup(void)
-{
-	/* Cayman platform leaves the decision to head.S, for now */
-	platform_parms.fpu_flags = fpu_in_use;
-}
-
-void __init platform_monitor(void)
-{
-	/* Nothing yet .. */
-}
-
-void __init platform_reserve(void)
-{
-	/* Nothing yet .. */
-}
-
-const char *get_system_type(void)
-{
-	return "Hitachi Cayman";
-}
-
diff --git a/arch/sh64/mach-harp/Makefile b/arch/sh64/mach-harp/Makefile
deleted file mode 100644
index 2f2963fa2131..000000000000
--- a/arch/sh64/mach-harp/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-y := setup.o
diff --git a/arch/sh64/mach-harp/setup.c b/arch/sh64/mach-harp/setup.c
deleted file mode 100644
index 05011cb369bb..000000000000
--- a/arch/sh64/mach-harp/setup.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mach-harp/setup.c
- *
- * SH-5 Simulator Platform Support
- *
- * This file handles the architecture-dependent parts of initialization
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- *
- * benedict.gaster@superh.com:	 3rd May 2002
- *    Added support for ramdisk, removing statically linked romfs at the same time. *
- *
- * lethal@linux-sh.org:          15th May 2003
- *    Use the generic procfs cpuinfo interface, just return a valid board name.
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <asm/platform.h>
-#include <asm/irq.h>
-
-/*
- * Platform Dependent Interrupt Priorities.
- */
-
-/* Using defaults defined in irq.h */
-#define	RES NO_PRIORITY		/* Disabled */
-#define IR0 IRL0_PRIORITY	/* IRLs */
-#define IR1 IRL1_PRIORITY
-#define IR2 IRL2_PRIORITY
-#define IR3 IRL3_PRIORITY
-#define PCA INTA_PRIORITY	/* PCI Ints */
-#define PCB INTB_PRIORITY
-#define PCC INTC_PRIORITY
-#define PCD INTD_PRIORITY
-#define SER TOP_PRIORITY
-#define ERR TOP_PRIORITY
-#define PW0 TOP_PRIORITY
-#define PW1 TOP_PRIORITY
-#define PW2 TOP_PRIORITY
-#define PW3 TOP_PRIORITY
-#define DM0 NO_PRIORITY		/* DMA Ints */
-#define DM1 NO_PRIORITY
-#define DM2 NO_PRIORITY
-#define DM3 NO_PRIORITY
-#define DAE NO_PRIORITY
-#define TU0 TIMER_PRIORITY	/* TMU Ints */
-#define TU1 NO_PRIORITY
-#define TU2 NO_PRIORITY
-#define TI2 NO_PRIORITY
-#define ATI NO_PRIORITY		/* RTC Ints */
-#define PRI NO_PRIORITY
-#define CUI RTC_PRIORITY
-#define ERI SCIF_PRIORITY	/* SCIF Ints */
-#define RXI SCIF_PRIORITY
-#define BRI SCIF_PRIORITY
-#define TXI SCIF_PRIORITY
-#define ITI TOP_PRIORITY	/* WDT Ints */
-
-/*
- * Platform dependent structures: maps and parms block.
- */
-struct resource io_resources[] = {
-	/* To be updated with external devices */
-};
-
-struct resource kram_resources[] = {
-	/* These must be last in the array */
-	{ .name = "Kernel code", .start = 0, .end = 0 },
-	/* These must be last in the array */
-	{ .name = "Kernel data", .start = 0, .end = 0 }
-};
-
-struct resource xram_resources[] = {
-	/* To be updated with external devices */
-};
-
-struct resource rom_resources[] = {
-	/* To be updated with external devices */
-};
-
-struct sh64_platform platform_parms = {
-	.readonly_rootfs =	1,
-	.initial_root_dev =	0x0100,
-	.loader_type =		1,
-	.io_res_p =		io_resources,
-	.io_res_count =		ARRAY_SIZE(io_resources),
-	.kram_res_p =		kram_resources,
-	.kram_res_count =	ARRAY_SIZE(kram_resources),
-	.xram_res_p =		xram_resources,
-	.xram_res_count =	ARRAY_SIZE(xram_resources),
-	.rom_res_p =		rom_resources,
-	.rom_res_count =	ARRAY_SIZE(rom_resources),
-};
-
-int platform_int_priority[NR_INTC_IRQS] = {
-	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
-	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
-	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES,	/* IRQ 16-23 */
-	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 24-31 */
-	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI,	/* IRQ 32-39 */
-	RXI, BRI, TXI, RES, RES, RES, RES, RES,	/* IRQ 40-47 */
-	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 48-55 */
-	RES, RES, RES, RES, RES, RES, RES, ITI,	/* IRQ 56-63 */
-};
-
-void __init platform_setup(void)
-{
-	/* Harp platform leaves the decision to head.S, for now */
-	platform_parms.fpu_flags = fpu_in_use;
-}
-
-void __init platform_monitor(void)
-{
-	/* Nothing yet .. */
-}
-
-void __init platform_reserve(void)
-{
-	/* Nothing yet .. */
-}
-
-const char *get_system_type(void)
-{
-	return "ST50 Harp";
-}
diff --git a/arch/sh64/mach-sim/Makefile b/arch/sh64/mach-sim/Makefile
deleted file mode 100644
index 2f2963fa2131..000000000000
--- a/arch/sh64/mach-sim/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-y := setup.o
diff --git a/arch/sh64/mach-sim/setup.c b/arch/sh64/mach-sim/setup.c
deleted file mode 100644
index e3386ec1ce1f..000000000000
--- a/arch/sh64/mach-sim/setup.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mach-sim/setup.c
- *
- * ST50 Simulator Platform Support
- *
- * This file handles the architecture-dependent parts of initialization
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- *
- * lethal@linux-sh.org:          15th May 2003
- *    Use the generic procfs cpuinfo interface, just return a valid board name.
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <asm/platform.h>
-#include <asm/irq.h>
-
-/*
- * Platform Dependent Interrupt Priorities.
- */
-
-/* Using defaults defined in irq.h */
-#define	RES NO_PRIORITY		/* Disabled */
-#define IR0 IRL0_PRIORITY	/* IRLs */
-#define IR1 IRL1_PRIORITY
-#define IR2 IRL2_PRIORITY
-#define IR3 IRL3_PRIORITY
-#define PCA INTA_PRIORITY	/* PCI Ints */
-#define PCB INTB_PRIORITY
-#define PCC INTC_PRIORITY
-#define PCD INTD_PRIORITY
-#define SER TOP_PRIORITY
-#define ERR TOP_PRIORITY
-#define PW0 TOP_PRIORITY
-#define PW1 TOP_PRIORITY
-#define PW2 TOP_PRIORITY
-#define PW3 TOP_PRIORITY
-#define DM0 NO_PRIORITY		/* DMA Ints */
-#define DM1 NO_PRIORITY
-#define DM2 NO_PRIORITY
-#define DM3 NO_PRIORITY
-#define DAE NO_PRIORITY
-#define TU0 TIMER_PRIORITY	/* TMU Ints */
-#define TU1 NO_PRIORITY
-#define TU2 NO_PRIORITY
-#define TI2 NO_PRIORITY
-#define ATI NO_PRIORITY		/* RTC Ints */
-#define PRI NO_PRIORITY
-#define CUI RTC_PRIORITY
-#define ERI SCIF_PRIORITY	/* SCIF Ints */
-#define RXI SCIF_PRIORITY
-#define BRI SCIF_PRIORITY
-#define TXI SCIF_PRIORITY
-#define ITI TOP_PRIORITY	/* WDT Ints */
-
-/*
- * Platform dependent structures: maps and parms block.
- */
-struct resource io_resources[] = {
-	/* Nothing yet .. */
-};
-
-struct resource kram_resources[] = {
-	/* These must be last in the array */
-	{ .name = "Kernel code", .start = 0, .end = 0 },
-	/* These must be last in the array */
-	{ .name = "Kernel data", .start = 0, .end = 0 }
-};
-
-struct resource xram_resources[] = {
-	/* Nothing yet .. */
-};
-
-struct resource rom_resources[] = {
-	/* Nothing yet .. */
-};
-
-struct sh64_platform platform_parms = {
-	.readonly_rootfs =	1,
-	.initial_root_dev =	0x0100,
-	.loader_type =		1,
-	.io_res_p =		io_resources,
-	.io_res_count =		ARRAY_SIZE(io_resources),
-	.kram_res_p =		kram_resources,
-	.kram_res_count =	ARRAY_SIZE(kram_resources),
-	.xram_res_p =		xram_resources,
-	.xram_res_count =	ARRAY_SIZE(xram_resources),
-	.rom_res_p =		rom_resources,
-	.rom_res_count =	ARRAY_SIZE(rom_resources),
-};
-
-int platform_int_priority[NR_IRQS] = {
-	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
-	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
-	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES,	/* IRQ 16-23 */
-	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 24-31 */
-	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI,	/* IRQ 32-39 */
-	RXI, BRI, TXI, RES, RES, RES, RES, RES,	/* IRQ 40-47 */
-	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 48-55 */
-	RES, RES, RES, RES, RES, RES, RES, ITI,	/* IRQ 56-63 */
-};
-
-void __init platform_setup(void)
-{
-	/* Simulator platform leaves the decision to head.S */
-	platform_parms.fpu_flags = fpu_in_use;
-}
-
-void __init platform_monitor(void)
-{
-	/* Nothing yet .. */
-}
-
-void __init platform_reserve(void)
-{
-	/* Nothing yet .. */
-}
-
-const char *get_system_type(void)
-{
-	return "SH-5 Simulator";
-}
-- 
cgit v1.2.3-59-g8ed1b


From f493473a907e41f89814bee682d705bbcc131933 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 8 Nov 2007 19:22:26 +0900
Subject: sh: Move sh64 board defconfigs to arch/sh/configs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/configs/cayman_defconfig   | 1126 ++++++++++++++++++++++++++++++++++++
 arch/sh/configs/harp_defconfig     |  745 ++++++++++++++++++++++++
 arch/sh/configs/sim_defconfig      |  558 ++++++++++++++++++
 arch/sh64/configs/cayman_defconfig | 1126 ------------------------------------
 arch/sh64/configs/harp_defconfig   |  745 ------------------------
 arch/sh64/configs/sim_defconfig    |  558 ------------------
 6 files changed, 2429 insertions(+), 2429 deletions(-)
 create mode 100644 arch/sh/configs/cayman_defconfig
 create mode 100644 arch/sh/configs/harp_defconfig
 create mode 100644 arch/sh/configs/sim_defconfig
 delete mode 100644 arch/sh64/configs/cayman_defconfig
 delete mode 100644 arch/sh64/configs/harp_defconfig
 delete mode 100644 arch/sh64/configs/sim_defconfig

(limited to 'arch')

diff --git a/arch/sh/configs/cayman_defconfig b/arch/sh/configs/cayman_defconfig
new file mode 100644
index 000000000000..75552bb01405
--- /dev/null
+++ b/arch/sh/configs/cayman_defconfig
@@ -0,0 +1,1126 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.24-rc1
+# Fri Nov  2 14:35:27 2007
+#
+CONFIG_SUPERH=y
+CONFIG_SUPERH64=y
+CONFIG_MMU=y
+CONFIG_QUICKLIST=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_IRQ_PROBE=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_NO_VIRT_TO_BUS=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOCK_KERNEL=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SWAP=y
+# CONFIG_SYSVIPC is not set
+CONFIG_POSIX_MQUEUE=y
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SYSCTL=y
+# CONFIG_EMBEDDED is not set
+CONFIG_UID16=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_ALL is not set
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+CONFIG_KMOD=y
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
+
+#
+# System type
+#
+# CONFIG_SH_SIMULATOR is not set
+CONFIG_SH_CAYMAN=y
+# CONFIG_SH_HARP is not set
+CONFIG_CPU_SH5=y
+CONFIG_CPU_SUBTYPE_SH5_101=y
+# CONFIG_CPU_SUBTYPE_SH5_103 is not set
+CONFIG_LITTLE_ENDIAN=y
+# CONFIG_BIG_ENDIAN is not set
+CONFIG_SH_FPU=y
+# CONFIG_SH64_FPU_DENORM_FLUSH is not set
+CONFIG_SH64_PGTABLE_2_LEVEL=y
+# CONFIG_SH64_PGTABLE_3_LEVEL is not set
+CONFIG_HUGETLB_PAGE_SIZE_64K=y
+# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
+# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
+CONFIG_SH64_USER_MISALIGNED_FIXUP=y
+
+#
+# Memory options
+#
+CONFIG_CACHED_MEMORY_OFFSET=0x20000000
+CONFIG_MEMORY_START=0x80000000
+CONFIG_MEMORY_SIZE_IN_MB=128
+
+#
+# Cache options
+#
+CONFIG_DCACHE_WRITE_BACK=y
+# CONFIG_DCACHE_WRITE_THROUGH is not set
+# CONFIG_DCACHE_DISABLED is not set
+# CONFIG_ICACHE_DISABLED is not set
+CONFIG_PCIDEVICE_MEMORY_START=C0000000
+CONFIG_DEVICE_MEMORY_START=E0000000
+CONFIG_FLASH_MEMORY_START=0x00000000
+CONFIG_PCI_BLOCK_START=0x40000000
+
+#
+# CPU Subtype specific options
+#
+CONFIG_SH64_ID2815_WORKAROUND=y
+
+#
+# Misc options
+#
+CONFIG_HEARTBEAT=y
+CONFIG_HDSP253_LED=y
+# CONFIG_SH_DMA is not set
+CONFIG_PREEMPT=y
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=0
+CONFIG_NR_QUICK=1
+
+#
+# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
+#
+CONFIG_PCI=y
+CONFIG_SH_PCIDMA_NONCOHERENT=y
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+# CONFIG_PCI_DEBUG is not set
+# CONFIG_PCCARD is not set
+# CONFIG_HOTPLUG_PCI is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+CONFIG_XFRM=y
+# CONFIG_XFRM_USER is not set
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+CONFIG_IP_PNP=y
+# CONFIG_IP_PNP_DHCP is not set
+# CONFIG_IP_PNP_BOOTP is not set
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
+CONFIG_INET_XFRM_MODE_BEET=y
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_FW_LOADER is not set
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+# CONFIG_MTD is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_CPQ_CISS_DA is not set
+# CONFIG_BLK_DEV_DAC960 is not set
+# CONFIG_BLK_DEV_UMEM is not set
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=y
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_SX8 is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_PHANTOM is not set
+# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_TIFM_CORE is not set
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+CONFIG_SCSI=y
+CONFIG_SCSI_DMA=y
+# CONFIG_SCSI_TGT is not set
+# CONFIG_SCSI_NETLINK is not set
+CONFIG_SCSI_PROC_FS=y
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
+CONFIG_BLK_DEV_SD=y
+# CONFIG_CHR_DEV_ST is not set
+# CONFIG_CHR_DEV_OSST is not set
+# CONFIG_BLK_DEV_SR is not set
+# CONFIG_CHR_DEV_SG is not set
+# CONFIG_CHR_DEV_SCH is not set
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
+CONFIG_SCSI_MULTI_LUN=y
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+CONFIG_SCSI_WAIT_SCAN=m
+
+#
+# SCSI Transports
+#
+CONFIG_SCSI_SPI_ATTRS=y
+# CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+# CONFIG_SCSI_SRP_ATTRS is not set
+CONFIG_SCSI_LOWLEVEL=y
+# CONFIG_ISCSI_TCP is not set
+# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
+# CONFIG_SCSI_3W_9XXX is not set
+# CONFIG_SCSI_ACARD is not set
+# CONFIG_SCSI_AACRAID is not set
+# CONFIG_SCSI_AIC7XXX is not set
+# CONFIG_SCSI_AIC7XXX_OLD is not set
+# CONFIG_SCSI_AIC79XX is not set
+# CONFIG_SCSI_AIC94XX is not set
+# CONFIG_SCSI_ARCMSR is not set
+# CONFIG_MEGARAID_NEWGEN is not set
+# CONFIG_MEGARAID_LEGACY is not set
+# CONFIG_MEGARAID_SAS is not set
+# CONFIG_SCSI_HPTIOP is not set
+# CONFIG_SCSI_DMX3191D is not set
+# CONFIG_SCSI_FUTURE_DOMAIN is not set
+# CONFIG_SCSI_IPS is not set
+# CONFIG_SCSI_INITIO is not set
+# CONFIG_SCSI_INIA100 is not set
+# CONFIG_SCSI_STEX is not set
+CONFIG_SCSI_SYM53C8XX_2=y
+CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
+CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
+CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
+CONFIG_SCSI_SYM53C8XX_MMIO=y
+# CONFIG_SCSI_QLOGIC_1280 is not set
+# CONFIG_SCSI_QLA_FC is not set
+# CONFIG_SCSI_QLA_ISCSI is not set
+# CONFIG_SCSI_LPFC is not set
+# CONFIG_SCSI_DC395x is not set
+# CONFIG_SCSI_DC390T is not set
+# CONFIG_SCSI_NSP32 is not set
+# CONFIG_SCSI_DEBUG is not set
+# CONFIG_SCSI_SRP is not set
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+# CONFIG_FUSION is not set
+
+#
+# IEEE 1394 (FireWire) support
+#
+# CONFIG_FIREWIRE is not set
+# CONFIG_IEEE1394 is not set
+# CONFIG_I2O is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_IP1000 is not set
+# CONFIG_ARCNET is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+# CONFIG_MII is not set
+# CONFIG_STNIC is not set
+# CONFIG_HAPPYMEAL is not set
+# CONFIG_SUNGEM is not set
+# CONFIG_CASSINI is not set
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_SMC91X is not set
+# CONFIG_SMC911X is not set
+CONFIG_NET_TULIP=y
+# CONFIG_DE2104X is not set
+CONFIG_TULIP=y
+# CONFIG_TULIP_MWI is not set
+# CONFIG_TULIP_MMIO is not set
+# CONFIG_TULIP_NAPI is not set
+# CONFIG_DE4X5 is not set
+# CONFIG_WINBOND_840 is not set
+# CONFIG_DM9102 is not set
+# CONFIG_ULI526X is not set
+# CONFIG_HP100 is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+CONFIG_NET_PCI=y
+# CONFIG_PCNET32 is not set
+# CONFIG_AMD8111_ETH is not set
+# CONFIG_ADAPTEC_STARFIRE is not set
+# CONFIG_B44 is not set
+# CONFIG_FORCEDETH is not set
+# CONFIG_EEPRO100 is not set
+# CONFIG_E100 is not set
+# CONFIG_FEALNX is not set
+# CONFIG_NATSEMI is not set
+# CONFIG_NE2K_PCI is not set
+# CONFIG_8139CP is not set
+# CONFIG_8139TOO is not set
+# CONFIG_SIS900 is not set
+# CONFIG_EPIC100 is not set
+# CONFIG_SUNDANCE is not set
+# CONFIG_TLAN is not set
+# CONFIG_VIA_RHINE is not set
+# CONFIG_SC92031 is not set
+CONFIG_NETDEV_1000=y
+# CONFIG_ACENIC is not set
+# CONFIG_DL2K is not set
+# CONFIG_E1000 is not set
+# CONFIG_E1000E is not set
+# CONFIG_NS83820 is not set
+# CONFIG_HAMACHI is not set
+# CONFIG_YELLOWFIN is not set
+# CONFIG_R8169 is not set
+# CONFIG_SIS190 is not set
+# CONFIG_SKGE is not set
+# CONFIG_SKY2 is not set
+# CONFIG_SK98LIN is not set
+# CONFIG_VIA_VELOCITY is not set
+# CONFIG_TIGON3 is not set
+# CONFIG_BNX2 is not set
+# CONFIG_QLA3XXX is not set
+# CONFIG_ATL1 is not set
+CONFIG_NETDEV_10000=y
+# CONFIG_CHELSIO_T1 is not set
+# CONFIG_CHELSIO_T3 is not set
+# CONFIG_IXGBE is not set
+# CONFIG_IXGB is not set
+# CONFIG_S2IO is not set
+# CONFIG_MYRI10GE is not set
+# CONFIG_NETXEN_NIC is not set
+# CONFIG_NIU is not set
+# CONFIG_MLX4_CORE is not set
+# CONFIG_TEHUTI is not set
+# CONFIG_TR is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_WAN is not set
+# CONFIG_FDDI is not set
+# CONFIG_HIPPI is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_NET_FC is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+CONFIG_INPUT_MOUSEDEV=y
+CONFIG_INPUT_MOUSEDEV_PSAUX=y
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+CONFIG_INPUT_KEYBOARD=y
+CONFIG_KEYBOARD_ATKBD=y
+# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_KEYBOARD_LKKBD is not set
+# CONFIG_KEYBOARD_XTKBD is not set
+# CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_KEYBOARD_STOWAWAY is not set
+CONFIG_INPUT_MOUSE=y
+CONFIG_MOUSE_PS2=y
+CONFIG_MOUSE_PS2_ALPS=y
+CONFIG_MOUSE_PS2_LOGIPS2PP=y
+CONFIG_MOUSE_PS2_SYNAPTICS=y
+CONFIG_MOUSE_PS2_LIFEBOOK=y
+CONFIG_MOUSE_PS2_TRACKPOINT=y
+# CONFIG_MOUSE_PS2_TOUCHKIT is not set
+# CONFIG_MOUSE_SERIAL is not set
+# CONFIG_MOUSE_APPLETOUCH is not set
+# CONFIG_MOUSE_VSXXXAA is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+CONFIG_SERIO=y
+CONFIG_SERIO_I8042=y
+CONFIG_SERIO_SERPORT=y
+# CONFIG_SERIO_PCIPS2 is not set
+CONFIG_SERIO_LIBPS2=y
+# CONFIG_SERIO_RAW is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_SH_SCI=y
+CONFIG_SERIAL_SH_SCI_NR_UARTS=2
+CONFIG_SERIAL_SH_SCI_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_JSM is not set
+CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+CONFIG_HW_RANDOM=y
+# CONFIG_R3964 is not set
+# CONFIG_APPLICOM is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+CONFIG_DEVPORT=y
+CONFIG_I2C=m
+CONFIG_I2C_BOARDINFO=y
+# CONFIG_I2C_CHARDEV is not set
+
+#
+# I2C Algorithms
+#
+# CONFIG_I2C_ALGOBIT is not set
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALGOPCA is not set
+
+#
+# I2C Hardware Bus support
+#
+# CONFIG_I2C_ALI1535 is not set
+# CONFIG_I2C_ALI1563 is not set
+# CONFIG_I2C_ALI15X3 is not set
+# CONFIG_I2C_AMD756 is not set
+# CONFIG_I2C_AMD8111 is not set
+# CONFIG_I2C_I801 is not set
+# CONFIG_I2C_I810 is not set
+# CONFIG_I2C_PIIX4 is not set
+# CONFIG_I2C_NFORCE2 is not set
+# CONFIG_I2C_OCORES is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_PROSAVAGE is not set
+# CONFIG_I2C_SAVAGE4 is not set
+# CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_SIS5595 is not set
+# CONFIG_I2C_SIS630 is not set
+# CONFIG_I2C_SIS96X is not set
+# CONFIG_I2C_TAOS_EVM is not set
+# CONFIG_I2C_STUB is not set
+# CONFIG_I2C_VIA is not set
+# CONFIG_I2C_VIAPRO is not set
+# CONFIG_I2C_VOODOO3 is not set
+
+#
+# Miscellaneous I2C Chip support
+#
+# CONFIG_SENSORS_DS1337 is not set
+# CONFIG_SENSORS_DS1374 is not set
+# CONFIG_DS1682 is not set
+# CONFIG_SENSORS_EEPROM is not set
+# CONFIG_SENSORS_PCF8574 is not set
+# CONFIG_SENSORS_PCA9539 is not set
+# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_MAX6875 is not set
+# CONFIG_SENSORS_TSL2550 is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
+# CONFIG_I2C_DEBUG_CHIP is not set
+
+#
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+CONFIG_HWMON=y
+# CONFIG_HWMON_VID is not set
+# CONFIG_SENSORS_AD7418 is not set
+# CONFIG_SENSORS_ADM1021 is not set
+# CONFIG_SENSORS_ADM1025 is not set
+# CONFIG_SENSORS_ADM1026 is not set
+# CONFIG_SENSORS_ADM1029 is not set
+# CONFIG_SENSORS_ADM1031 is not set
+# CONFIG_SENSORS_ADM9240 is not set
+# CONFIG_SENSORS_ADT7470 is not set
+# CONFIG_SENSORS_ATXP1 is not set
+# CONFIG_SENSORS_DS1621 is not set
+# CONFIG_SENSORS_F71805F is not set
+# CONFIG_SENSORS_F71882FG is not set
+# CONFIG_SENSORS_F75375S is not set
+# CONFIG_SENSORS_GL518SM is not set
+# CONFIG_SENSORS_GL520SM is not set
+# CONFIG_SENSORS_IT87 is not set
+# CONFIG_SENSORS_LM63 is not set
+# CONFIG_SENSORS_LM75 is not set
+# CONFIG_SENSORS_LM77 is not set
+# CONFIG_SENSORS_LM78 is not set
+# CONFIG_SENSORS_LM80 is not set
+# CONFIG_SENSORS_LM83 is not set
+# CONFIG_SENSORS_LM85 is not set
+# CONFIG_SENSORS_LM87 is not set
+# CONFIG_SENSORS_LM90 is not set
+# CONFIG_SENSORS_LM92 is not set
+# CONFIG_SENSORS_LM93 is not set
+# CONFIG_SENSORS_MAX1619 is not set
+# CONFIG_SENSORS_MAX6650 is not set
+# CONFIG_SENSORS_PC87360 is not set
+# CONFIG_SENSORS_PC87427 is not set
+# CONFIG_SENSORS_SIS5595 is not set
+# CONFIG_SENSORS_DME1737 is not set
+# CONFIG_SENSORS_SMSC47M1 is not set
+# CONFIG_SENSORS_SMSC47M192 is not set
+# CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_THMC50 is not set
+# CONFIG_SENSORS_VIA686A is not set
+# CONFIG_SENSORS_VT1211 is not set
+# CONFIG_SENSORS_VT8231 is not set
+# CONFIG_SENSORS_W83781D is not set
+# CONFIG_SENSORS_W83791D is not set
+# CONFIG_SENSORS_W83792D is not set
+# CONFIG_SENSORS_W83793 is not set
+# CONFIG_SENSORS_W83L785TS is not set
+# CONFIG_SENSORS_W83627HF is not set
+# CONFIG_SENSORS_W83627EHF is not set
+# CONFIG_HWMON_DEBUG_CHIP is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
+
+#
+# Watchdog Device Drivers
+#
+# CONFIG_SOFT_WATCHDOG is not set
+
+#
+# PCI-based Watchdog Cards
+#
+# CONFIG_PCIPCWATCHDOG is not set
+# CONFIG_WDTPCI is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+CONFIG_VIDEO_DEV=m
+# CONFIG_VIDEO_V4L1 is not set
+# CONFIG_VIDEO_V4L1_COMPAT is not set
+CONFIG_VIDEO_V4L2=y
+CONFIG_VIDEO_CAPTURE_DRIVERS=y
+# CONFIG_VIDEO_ADV_DEBUG is not set
+CONFIG_VIDEO_HELPER_CHIPS_AUTO=y
+# CONFIG_VIDEO_VIVI is not set
+# CONFIG_VIDEO_SAA5246A is not set
+# CONFIG_VIDEO_SAA5249 is not set
+# CONFIG_VIDEO_SAA7134 is not set
+# CONFIG_VIDEO_HEXIUM_ORION is not set
+# CONFIG_VIDEO_HEXIUM_GEMINI is not set
+# CONFIG_VIDEO_CX88 is not set
+# CONFIG_VIDEO_CX23885 is not set
+# CONFIG_VIDEO_CAFE_CCIC is not set
+# CONFIG_RADIO_ADAPTERS is not set
+CONFIG_DVB_CORE=y
+# CONFIG_DVB_CORE_ATTACH is not set
+CONFIG_DVB_CAPTURE_DRIVERS=y
+
+#
+# Supported SAA7146 based PCI Adapters
+#
+
+#
+# Supported FlexCopII (B2C2) Adapters
+#
+# CONFIG_DVB_B2C2_FLEXCOP is not set
+
+#
+# Supported BT878 Adapters
+#
+
+#
+# Supported Pluto2 Adapters
+#
+# CONFIG_DVB_PLUTO2 is not set
+
+#
+# Supported DVB Frontends
+#
+
+#
+# Customise DVB Frontends
+#
+# CONFIG_DVB_FE_CUSTOMISE is not set
+
+#
+# DVB-S (satellite) frontends
+#
+# CONFIG_DVB_STV0299 is not set
+# CONFIG_DVB_CX24110 is not set
+# CONFIG_DVB_CX24123 is not set
+# CONFIG_DVB_TDA8083 is not set
+# CONFIG_DVB_MT312 is not set
+# CONFIG_DVB_VES1X93 is not set
+# CONFIG_DVB_S5H1420 is not set
+# CONFIG_DVB_TDA10086 is not set
+
+#
+# DVB-T (terrestrial) frontends
+#
+# CONFIG_DVB_SP8870 is not set
+# CONFIG_DVB_SP887X is not set
+# CONFIG_DVB_CX22700 is not set
+# CONFIG_DVB_CX22702 is not set
+# CONFIG_DVB_L64781 is not set
+# CONFIG_DVB_TDA1004X is not set
+# CONFIG_DVB_NXT6000 is not set
+# CONFIG_DVB_MT352 is not set
+# CONFIG_DVB_ZL10353 is not set
+# CONFIG_DVB_DIB3000MB is not set
+# CONFIG_DVB_DIB3000MC is not set
+# CONFIG_DVB_DIB7000M is not set
+# CONFIG_DVB_DIB7000P is not set
+
+#
+# DVB-C (cable) frontends
+#
+# CONFIG_DVB_VES1820 is not set
+# CONFIG_DVB_TDA10021 is not set
+# CONFIG_DVB_TDA10023 is not set
+# CONFIG_DVB_STV0297 is not set
+
+#
+# ATSC (North American/Korean Terrestrial/Cable DTV) frontends
+#
+# CONFIG_DVB_NXT200X is not set
+# CONFIG_DVB_OR51211 is not set
+# CONFIG_DVB_OR51132 is not set
+# CONFIG_DVB_BCM3510 is not set
+# CONFIG_DVB_LGDT330X is not set
+# CONFIG_DVB_S5H1409 is not set
+
+#
+# Tuners/PLL support
+#
+# CONFIG_DVB_PLL is not set
+# CONFIG_DVB_TDA826X is not set
+# CONFIG_DVB_TDA827X is not set
+# CONFIG_DVB_TUNER_QT1010 is not set
+# CONFIG_DVB_TUNER_MT2060 is not set
+# CONFIG_DVB_TUNER_MT2266 is not set
+# CONFIG_DVB_TUNER_MT2131 is not set
+# CONFIG_DVB_TUNER_DIB0070 is not set
+
+#
+# Miscellaneous devices
+#
+# CONFIG_DVB_LNBP21 is not set
+# CONFIG_DVB_ISL6421 is not set
+# CONFIG_DVB_TUA6100 is not set
+CONFIG_DAB=y
+
+#
+# Graphics support
+#
+# CONFIG_DRM is not set
+# CONFIG_VGASTATE is not set
+CONFIG_VIDEO_OUTPUT_CONTROL=y
+CONFIG_FB=y
+CONFIG_FIRMWARE_EDID=y
+# CONFIG_FB_DDC is not set
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_SYS_FOPS is not set
+CONFIG_FB_DEFERRED_IO=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+CONFIG_FB_MODE_HELPERS=y
+# CONFIG_FB_TILEBLITTING is not set
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_CIRRUS is not set
+# CONFIG_FB_PM2 is not set
+# CONFIG_FB_CYBER2000 is not set
+# CONFIG_FB_ASILIANT is not set
+# CONFIG_FB_IMSTT is not set
+# CONFIG_FB_S1D13XXX is not set
+# CONFIG_FB_NVIDIA is not set
+# CONFIG_FB_RIVA is not set
+# CONFIG_FB_MATROX is not set
+# CONFIG_FB_RADEON is not set
+# CONFIG_FB_ATY128 is not set
+# CONFIG_FB_ATY is not set
+# CONFIG_FB_S3 is not set
+# CONFIG_FB_SAVAGE is not set
+# CONFIG_FB_SIS is not set
+# CONFIG_FB_NEOMAGIC is not set
+CONFIG_FB_KYRO=y
+# CONFIG_FB_3DFX is not set
+# CONFIG_FB_VOODOO1 is not set
+# CONFIG_FB_VT8623 is not set
+# CONFIG_FB_TRIDENT is not set
+# CONFIG_FB_ARK is not set
+# CONFIG_FB_PM3 is not set
+# CONFIG_FB_VIRTUAL is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Console display driver support
+#
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+CONFIG_FONTS=y
+# CONFIG_FONT_8x8 is not set
+CONFIG_FONT_8x16=y
+# CONFIG_FONT_6x11 is not set
+# CONFIG_FONT_7x14 is not set
+# CONFIG_FONT_PEARL_8x8 is not set
+# CONFIG_FONT_ACORN_8x8 is not set
+# CONFIG_FONT_MINI_4x6 is not set
+# CONFIG_FONT_SUN8x16 is not set
+# CONFIG_FONT_SUN12x22 is not set
+# CONFIG_FONT_10x18 is not set
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+# CONFIG_LOGO_LINUX_CLUT224 is not set
+# CONFIG_LOGO_SUPERH_MONO is not set
+# CONFIG_LOGO_SUPERH_VGA16 is not set
+CONFIG_LOGO_SUPERH_CLUT224=y
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+CONFIG_HID_SUPPORT=y
+CONFIG_HID=y
+# CONFIG_HID_DEBUG is not set
+# CONFIG_HIDRAW is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
+CONFIG_USB_ARCH_HAS_EHCI=y
+# CONFIG_USB is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+# CONFIG_MMC is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_INFINIBAND is not set
+# CONFIG_RTC_CLASS is not set
+
+#
+# Userspace I/O
+#
+# CONFIG_UIO is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_XATTR=y
+# CONFIG_EXT3_FS_POSIX_ACL is not set
+# CONFIG_EXT3_FS_SECURITY is not set
+# CONFIG_EXT4DEV_FS is not set
+CONFIG_JBD=y
+# CONFIG_JBD_DEBUG is not set
+CONFIG_FS_MBCACHE=y
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+CONFIG_MINIX_FS=y
+CONFIG_ROMFS_FS=y
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_QUOTA is not set
+CONFIG_DNOTIFY=y
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+CONFIG_HUGETLBFS=y
+CONFIG_HUGETLB_PAGE=y
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFS_DIRECTIO is not set
+# CONFIG_NFSD is not set
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_SUNRPC_BIND34 is not set
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_ACORN_PARTITION is not set
+# CONFIG_OSF_PARTITION is not set
+# CONFIG_AMIGA_PARTITION is not set
+# CONFIG_ATARI_PARTITION is not set
+# CONFIG_MAC_PARTITION is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_BSD_DISKLABEL is not set
+# CONFIG_MINIX_SUBPARTITION is not set
+# CONFIG_SOLARIS_X86_PARTITION is not set
+# CONFIG_UNIXWARE_DISKLABEL is not set
+# CONFIG_LDM_PARTITION is not set
+# CONFIG_SGI_PARTITION is not set
+# CONFIG_ULTRIX_PARTITION is not set
+# CONFIG_SUN_PARTITION is not set
+# CONFIG_KARMA_PARTITION is not set
+# CONFIG_EFI_PARTITION is not set
+# CONFIG_SYSV68_PARTITION is not set
+# CONFIG_NLS is not set
+# CONFIG_DLM is not set
+CONFIG_INSTRUMENTATION=y
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
+CONFIG_SCHEDSTATS=y
+# CONFIG_TIMER_STATS is not set
+# CONFIG_DEBUG_SLAB is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+# CONFIG_DEBUG_INFO is not set
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
+CONFIG_FRAME_POINTER=y
+CONFIG_FORCED_INLINING=y
+# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_SAMPLES is not set
+# CONFIG_EARLY_PRINTK is not set
+CONFIG_SH64_PROC_TLB=y
+CONFIG_SH64_PROC_ASIDS=y
+CONFIG_SH64_SR_WATCH=y
+# CONFIG_POOR_MANS_STRACE is not set
+# CONFIG_SH_ALPHANUMERIC is not set
+# CONFIG_SH_NO_BSS_INIT is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
diff --git a/arch/sh/configs/harp_defconfig b/arch/sh/configs/harp_defconfig
new file mode 100644
index 000000000000..ba302cd0c285
--- /dev/null
+++ b/arch/sh/configs/harp_defconfig
@@ -0,0 +1,745 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.24-rc1
+# Fri Nov  2 14:35:57 2007
+#
+CONFIG_SUPERH=y
+CONFIG_SUPERH64=y
+CONFIG_MMU=y
+CONFIG_QUICKLIST=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_IRQ_PROBE=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_NO_VIRT_TO_BUS=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOCK_KERNEL=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SWAP=y
+# CONFIG_SYSVIPC is not set
+CONFIG_POSIX_MQUEUE=y
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SYSCTL=y
+# CONFIG_EMBEDDED is not set
+CONFIG_UID16=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_ALL is not set
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+# CONFIG_MODULES is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
+
+#
+# System type
+#
+# CONFIG_SH_SIMULATOR is not set
+# CONFIG_SH_CAYMAN is not set
+CONFIG_SH_HARP=y
+CONFIG_CPU_SH5=y
+CONFIG_CPU_SUBTYPE_SH5_101=y
+# CONFIG_CPU_SUBTYPE_SH5_103 is not set
+CONFIG_LITTLE_ENDIAN=y
+# CONFIG_BIG_ENDIAN is not set
+CONFIG_SH_FPU=y
+# CONFIG_SH64_FPU_DENORM_FLUSH is not set
+CONFIG_SH64_PGTABLE_2_LEVEL=y
+# CONFIG_SH64_PGTABLE_3_LEVEL is not set
+CONFIG_HUGETLB_PAGE_SIZE_64K=y
+# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
+# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
+CONFIG_SH64_USER_MISALIGNED_FIXUP=y
+
+#
+# Memory options
+#
+CONFIG_CACHED_MEMORY_OFFSET=0x20000000
+CONFIG_MEMORY_START=0x80000000
+CONFIG_MEMORY_SIZE_IN_MB=128
+
+#
+# Cache options
+#
+CONFIG_DCACHE_WRITE_BACK=y
+# CONFIG_DCACHE_WRITE_THROUGH is not set
+# CONFIG_DCACHE_DISABLED is not set
+# CONFIG_ICACHE_DISABLED is not set
+CONFIG_PCIDEVICE_MEMORY_START=C0000000
+CONFIG_DEVICE_MEMORY_START=E0000000
+CONFIG_FLASH_MEMORY_START=0x00000000
+CONFIG_PCI_BLOCK_START=0x40000000
+
+#
+# CPU Subtype specific options
+#
+CONFIG_SH64_ID2815_WORKAROUND=y
+
+#
+# Misc options
+#
+# CONFIG_SH_DMA is not set
+CONFIG_PREEMPT=y
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=0
+CONFIG_NR_QUICK=1
+
+#
+# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
+#
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+# CONFIG_PCCARD is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+CONFIG_XFRM=y
+# CONFIG_XFRM_USER is not set
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+CONFIG_IP_PNP=y
+# CONFIG_IP_PNP_DHCP is not set
+# CONFIG_IP_PNP_BOOTP is not set
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
+CONFIG_INET_XFRM_MODE_BEET=y
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_FW_LOADER is not set
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+# CONFIG_MTD is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=y
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+CONFIG_SCSI=y
+CONFIG_SCSI_DMA=y
+# CONFIG_SCSI_TGT is not set
+# CONFIG_SCSI_NETLINK is not set
+CONFIG_SCSI_PROC_FS=y
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
+CONFIG_BLK_DEV_SD=y
+# CONFIG_CHR_DEV_ST is not set
+# CONFIG_CHR_DEV_OSST is not set
+# CONFIG_BLK_DEV_SR is not set
+# CONFIG_CHR_DEV_SG is not set
+# CONFIG_CHR_DEV_SCH is not set
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
+CONFIG_SCSI_MULTI_LUN=y
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+
+#
+# SCSI Transports
+#
+CONFIG_SCSI_SPI_ATTRS=y
+# CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+# CONFIG_SCSI_SRP_ATTRS is not set
+CONFIG_SCSI_LOWLEVEL=y
+# CONFIG_ISCSI_TCP is not set
+# CONFIG_SCSI_DEBUG is not set
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+# CONFIG_MII is not set
+# CONFIG_STNIC is not set
+# CONFIG_SMC91X is not set
+# CONFIG_SMC911X is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
+CONFIG_NETDEV_1000=y
+CONFIG_NETDEV_10000=y
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_WAN is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_SH_SCI=y
+CONFIG_SERIAL_SH_SCI_NR_UARTS=2
+CONFIG_SERIAL_SH_SCI_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+CONFIG_HW_RANDOM=y
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_I2C is not set
+
+#
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+CONFIG_HWMON=y
+# CONFIG_HWMON_VID is not set
+# CONFIG_SENSORS_F71805F is not set
+# CONFIG_SENSORS_F71882FG is not set
+# CONFIG_SENSORS_IT87 is not set
+# CONFIG_SENSORS_PC87360 is not set
+# CONFIG_SENSORS_PC87427 is not set
+# CONFIG_SENSORS_SMSC47M1 is not set
+# CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_VT1211 is not set
+# CONFIG_SENSORS_W83627HF is not set
+# CONFIG_SENSORS_W83627EHF is not set
+# CONFIG_HWMON_DEBUG_CHIP is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
+
+#
+# Watchdog Device Drivers
+#
+# CONFIG_SOFT_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+CONFIG_DAB=y
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+CONFIG_VIDEO_OUTPUT_CONTROL=y
+CONFIG_FB=y
+CONFIG_FIRMWARE_EDID=y
+# CONFIG_FB_DDC is not set
+# CONFIG_FB_CFB_FILLRECT is not set
+# CONFIG_FB_CFB_COPYAREA is not set
+# CONFIG_FB_CFB_IMAGEBLIT is not set
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_SYS_FOPS is not set
+CONFIG_FB_DEFERRED_IO=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+CONFIG_FB_MODE_HELPERS=y
+# CONFIG_FB_TILEBLITTING is not set
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_S1D13XXX is not set
+# CONFIG_FB_VIRTUAL is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Console display driver support
+#
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+CONFIG_FONTS=y
+# CONFIG_FONT_8x8 is not set
+CONFIG_FONT_8x16=y
+# CONFIG_FONT_6x11 is not set
+# CONFIG_FONT_7x14 is not set
+# CONFIG_FONT_PEARL_8x8 is not set
+# CONFIG_FONT_ACORN_8x8 is not set
+# CONFIG_FONT_MINI_4x6 is not set
+# CONFIG_FONT_SUN8x16 is not set
+# CONFIG_FONT_SUN12x22 is not set
+# CONFIG_FONT_10x18 is not set
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+# CONFIG_LOGO_LINUX_CLUT224 is not set
+# CONFIG_LOGO_SUPERH_MONO is not set
+# CONFIG_LOGO_SUPERH_VGA16 is not set
+CONFIG_LOGO_SUPERH_CLUT224=y
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+CONFIG_HID_SUPPORT=y
+CONFIG_HID=y
+# CONFIG_HID_DEBUG is not set
+# CONFIG_HIDRAW is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_ARCH_HAS_HCD=y
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+# CONFIG_USB is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+# CONFIG_MMC is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_RTC_CLASS is not set
+
+#
+# Userspace I/O
+#
+# CONFIG_UIO is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_XATTR=y
+# CONFIG_EXT3_FS_POSIX_ACL is not set
+# CONFIG_EXT3_FS_SECURITY is not set
+# CONFIG_EXT4DEV_FS is not set
+CONFIG_JBD=y
+# CONFIG_JBD_DEBUG is not set
+CONFIG_FS_MBCACHE=y
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+CONFIG_MINIX_FS=y
+CONFIG_ROMFS_FS=y
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_QUOTA is not set
+CONFIG_DNOTIFY=y
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+CONFIG_HUGETLBFS=y
+CONFIG_HUGETLB_PAGE=y
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFS_DIRECTIO is not set
+# CONFIG_NFSD is not set
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_SUNRPC_BIND34 is not set
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_ACORN_PARTITION is not set
+# CONFIG_OSF_PARTITION is not set
+# CONFIG_AMIGA_PARTITION is not set
+# CONFIG_ATARI_PARTITION is not set
+# CONFIG_MAC_PARTITION is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_BSD_DISKLABEL is not set
+# CONFIG_MINIX_SUBPARTITION is not set
+# CONFIG_SOLARIS_X86_PARTITION is not set
+# CONFIG_UNIXWARE_DISKLABEL is not set
+# CONFIG_LDM_PARTITION is not set
+# CONFIG_SGI_PARTITION is not set
+# CONFIG_ULTRIX_PARTITION is not set
+# CONFIG_SUN_PARTITION is not set
+# CONFIG_KARMA_PARTITION is not set
+# CONFIG_EFI_PARTITION is not set
+# CONFIG_SYSV68_PARTITION is not set
+# CONFIG_NLS is not set
+# CONFIG_DLM is not set
+CONFIG_INSTRUMENTATION=y
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
+CONFIG_SCHEDSTATS=y
+# CONFIG_TIMER_STATS is not set
+# CONFIG_DEBUG_SLAB is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+# CONFIG_DEBUG_INFO is not set
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
+CONFIG_FRAME_POINTER=y
+CONFIG_FORCED_INLINING=y
+# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_SAMPLES is not set
+# CONFIG_EARLY_PRINTK is not set
+CONFIG_SH64_PROC_TLB=y
+CONFIG_SH64_PROC_ASIDS=y
+CONFIG_SH64_SR_WATCH=y
+# CONFIG_POOR_MANS_STRACE is not set
+# CONFIG_SH_NO_BSS_INIT is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
diff --git a/arch/sh/configs/sim_defconfig b/arch/sh/configs/sim_defconfig
new file mode 100644
index 000000000000..18476cc522c3
--- /dev/null
+++ b/arch/sh/configs/sim_defconfig
@@ -0,0 +1,558 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.24-rc1
+# Fri Nov  2 14:36:08 2007
+#
+CONFIG_SUPERH=y
+CONFIG_SUPERH64=y
+CONFIG_MMU=y
+CONFIG_QUICKLIST=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_IRQ_PROBE=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_NO_VIRT_TO_BUS=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOCK_KERNEL=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SWAP=y
+# CONFIG_SYSVIPC is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_USER_NS is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SYSCTL=y
+# CONFIG_EMBEDDED is not set
+CONFIG_UID16=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_ALL is not set
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+# CONFIG_MODULES is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
+
+#
+# System type
+#
+CONFIG_SH_SIMULATOR=y
+# CONFIG_SH_CAYMAN is not set
+# CONFIG_SH_HARP is not set
+CONFIG_CPU_SH5=y
+CONFIG_CPU_SUBTYPE_SH5_101=y
+# CONFIG_CPU_SUBTYPE_SH5_103 is not set
+CONFIG_LITTLE_ENDIAN=y
+# CONFIG_BIG_ENDIAN is not set
+CONFIG_SH_FPU=y
+# CONFIG_SH64_FPU_DENORM_FLUSH is not set
+CONFIG_SH64_PGTABLE_2_LEVEL=y
+# CONFIG_SH64_PGTABLE_3_LEVEL is not set
+CONFIG_HUGETLB_PAGE_SIZE_64K=y
+# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
+# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
+CONFIG_SH64_USER_MISALIGNED_FIXUP=y
+
+#
+# Memory options
+#
+CONFIG_CACHED_MEMORY_OFFSET=0x20000000
+CONFIG_MEMORY_START=0x80000000
+CONFIG_MEMORY_SIZE_IN_MB=128
+
+#
+# Cache options
+#
+# CONFIG_DCACHE_WRITE_BACK is not set
+# CONFIG_DCACHE_WRITE_THROUGH is not set
+CONFIG_DCACHE_DISABLED=y
+# CONFIG_ICACHE_DISABLED is not set
+CONFIG_PCIDEVICE_MEMORY_START=C0000000
+CONFIG_DEVICE_MEMORY_START=E0000000
+CONFIG_FLASH_MEMORY_START=0x00000000
+CONFIG_PCI_BLOCK_START=0x40000000
+
+#
+# CPU Subtype specific options
+#
+CONFIG_SH64_ID2815_WORKAROUND=y
+
+#
+# Misc options
+#
+# CONFIG_SH_DMA is not set
+CONFIG_PREEMPT=y
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=0
+CONFIG_NR_QUICK=1
+
+#
+# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
+#
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+# CONFIG_PCCARD is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Networking
+#
+# CONFIG_NET is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_FW_LOADER is not set
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_MTD is not set
+# CONFIG_PARPORT is not set
+# CONFIG_BLK_DEV is not set
+# CONFIG_MISC_DEVICES is not set
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+CONFIG_SCSI=y
+CONFIG_SCSI_DMA=y
+# CONFIG_SCSI_TGT is not set
+# CONFIG_SCSI_NETLINK is not set
+CONFIG_SCSI_PROC_FS=y
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
+CONFIG_BLK_DEV_SD=y
+# CONFIG_CHR_DEV_ST is not set
+# CONFIG_CHR_DEV_OSST is not set
+# CONFIG_BLK_DEV_SR is not set
+# CONFIG_CHR_DEV_SG is not set
+# CONFIG_CHR_DEV_SCH is not set
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
+CONFIG_SCSI_MULTI_LUN=y
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+
+#
+# SCSI Transports
+#
+CONFIG_SCSI_SPI_ATTRS=y
+# CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+# CONFIG_SCSI_SRP_ATTRS is not set
+CONFIG_SCSI_LOWLEVEL=y
+# CONFIG_SCSI_DEBUG is not set
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_SH_SCI=y
+CONFIG_SERIAL_SH_SCI_NR_UARTS=2
+CONFIG_SERIAL_SH_SCI_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_I2C is not set
+
+#
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+CONFIG_DAB=y
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+CONFIG_VIDEO_OUTPUT_CONTROL=y
+CONFIG_FB=y
+CONFIG_FIRMWARE_EDID=y
+# CONFIG_FB_DDC is not set
+# CONFIG_FB_CFB_FILLRECT is not set
+# CONFIG_FB_CFB_COPYAREA is not set
+# CONFIG_FB_CFB_IMAGEBLIT is not set
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_SYS_FOPS is not set
+CONFIG_FB_DEFERRED_IO=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+CONFIG_FB_MODE_HELPERS=y
+# CONFIG_FB_TILEBLITTING is not set
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_S1D13XXX is not set
+# CONFIG_FB_VIRTUAL is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Console display driver support
+#
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+CONFIG_FONTS=y
+# CONFIG_FONT_8x8 is not set
+CONFIG_FONT_8x16=y
+# CONFIG_FONT_6x11 is not set
+# CONFIG_FONT_7x14 is not set
+# CONFIG_FONT_PEARL_8x8 is not set
+# CONFIG_FONT_ACORN_8x8 is not set
+# CONFIG_FONT_MINI_4x6 is not set
+# CONFIG_FONT_SUN8x16 is not set
+# CONFIG_FONT_SUN12x22 is not set
+# CONFIG_FONT_10x18 is not set
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+# CONFIG_LOGO_LINUX_CLUT224 is not set
+# CONFIG_LOGO_SUPERH_MONO is not set
+# CONFIG_LOGO_SUPERH_VGA16 is not set
+CONFIG_LOGO_SUPERH_CLUT224=y
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+# CONFIG_HID_SUPPORT is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_MMC is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_RTC_CLASS is not set
+
+#
+# Userspace I/O
+#
+# CONFIG_UIO is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_XATTR=y
+# CONFIG_EXT3_FS_POSIX_ACL is not set
+# CONFIG_EXT3_FS_SECURITY is not set
+# CONFIG_EXT4DEV_FS is not set
+CONFIG_JBD=y
+# CONFIG_JBD_DEBUG is not set
+CONFIG_FS_MBCACHE=y
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+CONFIG_MINIX_FS=y
+CONFIG_ROMFS_FS=y
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_QUOTA is not set
+CONFIG_DNOTIFY=y
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+CONFIG_HUGETLBFS=y
+CONFIG_HUGETLB_PAGE=y
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+
+#
+# Partition Types
+#
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_ACORN_PARTITION is not set
+# CONFIG_OSF_PARTITION is not set
+# CONFIG_AMIGA_PARTITION is not set
+# CONFIG_ATARI_PARTITION is not set
+# CONFIG_MAC_PARTITION is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_BSD_DISKLABEL is not set
+# CONFIG_MINIX_SUBPARTITION is not set
+# CONFIG_SOLARIS_X86_PARTITION is not set
+# CONFIG_UNIXWARE_DISKLABEL is not set
+# CONFIG_LDM_PARTITION is not set
+# CONFIG_SGI_PARTITION is not set
+# CONFIG_ULTRIX_PARTITION is not set
+# CONFIG_SUN_PARTITION is not set
+# CONFIG_KARMA_PARTITION is not set
+# CONFIG_EFI_PARTITION is not set
+# CONFIG_SYSV68_PARTITION is not set
+# CONFIG_NLS is not set
+CONFIG_INSTRUMENTATION=y
+CONFIG_PROFILING=y
+# CONFIG_OPROFILE is not set
+# CONFIG_MARKERS is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
+CONFIG_SCHEDSTATS=y
+# CONFIG_TIMER_STATS is not set
+# CONFIG_DEBUG_SLAB is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+# CONFIG_DEBUG_INFO is not set
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
+CONFIG_FRAME_POINTER=y
+CONFIG_FORCED_INLINING=y
+# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_SAMPLES is not set
+# CONFIG_EARLY_PRINTK is not set
+CONFIG_SH64_PROC_TLB=y
+CONFIG_SH64_PROC_ASIDS=y
+CONFIG_SH64_SR_WATCH=y
+# CONFIG_POOR_MANS_STRACE is not set
+CONFIG_SH_NO_BSS_INIT=y
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
diff --git a/arch/sh64/configs/cayman_defconfig b/arch/sh64/configs/cayman_defconfig
deleted file mode 100644
index 75552bb01405..000000000000
--- a/arch/sh64/configs/cayman_defconfig
+++ /dev/null
@@ -1,1126 +0,0 @@
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24-rc1
-# Fri Nov  2 14:35:27 2007
-#
-CONFIG_SUPERH=y
-CONFIG_SUPERH64=y
-CONFIG_MMU=y
-CONFIG_QUICKLIST=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_ARCH_NO_VIRT_TO_BUS=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# General setup
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_LOCK_KERNEL=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-CONFIG_SWAP=y
-# CONFIG_SYSVIPC is not set
-CONFIG_POSIX_MQUEUE=y
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_TASKSTATS is not set
-# CONFIG_USER_NS is not set
-# CONFIG_AUDIT is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_CGROUPS is not set
-CONFIG_FAIR_GROUP_SCHED=y
-CONFIG_FAIR_USER_SCHED=y
-# CONFIG_FAIR_CGROUP_SCHED is not set
-CONFIG_SYSFS_DEPRECATED=y
-# CONFIG_RELAY is not set
-# CONFIG_BLK_DEV_INITRD is not set
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_SYSCTL=y
-# CONFIG_EMBEDDED is not set
-CONFIG_UID16=y
-CONFIG_SYSCTL_SYSCALL=y
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_ALL is not set
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_ANON_INODES=y
-CONFIG_EPOLL=y
-CONFIG_SIGNALFD=y
-CONFIG_EVENTFD=y
-CONFIG_SHMEM=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
-# CONFIG_SLOB is not set
-CONFIG_RT_MUTEXES=y
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_MODULE_FORCE_UNLOAD is not set
-# CONFIG_MODVERSIONS is not set
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_KMOD=y
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-# CONFIG_BLK_DEV_BSG is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_DEFAULT_AS is not set
-# CONFIG_DEFAULT_DEADLINE is not set
-CONFIG_DEFAULT_CFQ=y
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="cfq"
-
-#
-# System type
-#
-# CONFIG_SH_SIMULATOR is not set
-CONFIG_SH_CAYMAN=y
-# CONFIG_SH_HARP is not set
-CONFIG_CPU_SH5=y
-CONFIG_CPU_SUBTYPE_SH5_101=y
-# CONFIG_CPU_SUBTYPE_SH5_103 is not set
-CONFIG_LITTLE_ENDIAN=y
-# CONFIG_BIG_ENDIAN is not set
-CONFIG_SH_FPU=y
-# CONFIG_SH64_FPU_DENORM_FLUSH is not set
-CONFIG_SH64_PGTABLE_2_LEVEL=y
-# CONFIG_SH64_PGTABLE_3_LEVEL is not set
-CONFIG_HUGETLB_PAGE_SIZE_64K=y
-# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
-# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
-CONFIG_SH64_USER_MISALIGNED_FIXUP=y
-
-#
-# Memory options
-#
-CONFIG_CACHED_MEMORY_OFFSET=0x20000000
-CONFIG_MEMORY_START=0x80000000
-CONFIG_MEMORY_SIZE_IN_MB=128
-
-#
-# Cache options
-#
-CONFIG_DCACHE_WRITE_BACK=y
-# CONFIG_DCACHE_WRITE_THROUGH is not set
-# CONFIG_DCACHE_DISABLED is not set
-# CONFIG_ICACHE_DISABLED is not set
-CONFIG_PCIDEVICE_MEMORY_START=C0000000
-CONFIG_DEVICE_MEMORY_START=E0000000
-CONFIG_FLASH_MEMORY_START=0x00000000
-CONFIG_PCI_BLOCK_START=0x40000000
-
-#
-# CPU Subtype specific options
-#
-CONFIG_SH64_ID2815_WORKAROUND=y
-
-#
-# Misc options
-#
-CONFIG_HEARTBEAT=y
-CONFIG_HDSP253_LED=y
-# CONFIG_SH_DMA is not set
-CONFIG_PREEMPT=y
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-# CONFIG_DISCONTIGMEM_MANUAL is not set
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
-# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=0
-CONFIG_NR_QUICK=1
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-CONFIG_PCI=y
-CONFIG_SH_PCIDMA_NONCOHERENT=y
-# CONFIG_ARCH_SUPPORTS_MSI is not set
-# CONFIG_PCI_DEBUG is not set
-# CONFIG_PCCARD is not set
-# CONFIG_HOTPLUG_PCI is not set
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Networking
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-CONFIG_UNIX=y
-CONFIG_XFRM=y
-# CONFIG_XFRM_USER is not set
-# CONFIG_XFRM_SUB_POLICY is not set
-# CONFIG_XFRM_MIGRATE is not set
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_FIB_HASH=y
-CONFIG_IP_PNP=y
-# CONFIG_IP_PNP_DHCP is not set
-# CONFIG_IP_PNP_BOOTP is not set
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_XFRM_TUNNEL is not set
-# CONFIG_INET_TUNNEL is not set
-CONFIG_INET_XFRM_MODE_TRANSPORT=y
-CONFIG_INET_XFRM_MODE_TUNNEL=y
-CONFIG_INET_XFRM_MODE_BEET=y
-# CONFIG_INET_LRO is not set
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
-# CONFIG_TCP_MD5SIG is not set
-# CONFIG_IPV6 is not set
-# CONFIG_INET6_XFRM_TUNNEL is not set
-# CONFIG_INET6_TUNNEL is not set
-# CONFIG_NETWORK_SECMARK is not set
-# CONFIG_NETFILTER is not set
-# CONFIG_IP_DCCP is not set
-# CONFIG_IP_SCTP is not set
-# CONFIG_TIPC is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-# CONFIG_AF_RXRPC is not set
-
-#
-# Wireless
-#
-# CONFIG_CFG80211 is not set
-# CONFIG_WIRELESS_EXT is not set
-# CONFIG_MAC80211 is not set
-# CONFIG_IEEE80211 is not set
-# CONFIG_RFKILL is not set
-# CONFIG_NET_9P is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_FW_LOADER is not set
-# CONFIG_DEBUG_DRIVER is not set
-# CONFIG_DEBUG_DEVRES is not set
-# CONFIG_SYS_HYPERVISOR is not set
-# CONFIG_CONNECTOR is not set
-# CONFIG_MTD is not set
-# CONFIG_PARPORT is not set
-CONFIG_BLK_DEV=y
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
-# CONFIG_BLK_DEV_COW_COMMON is not set
-CONFIG_BLK_DEV_LOOP=y
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_SX8 is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_BLK_DEV_RAM_SIZE=4096
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-# CONFIG_CDROM_PKTCDVD is not set
-# CONFIG_ATA_OVER_ETH is not set
-CONFIG_MISC_DEVICES=y
-# CONFIG_PHANTOM is not set
-# CONFIG_EEPROM_93CX6 is not set
-# CONFIG_SGI_IOC4 is not set
-# CONFIG_TIFM_CORE is not set
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_RAID_ATTRS is not set
-CONFIG_SCSI=y
-CONFIG_SCSI_DMA=y
-# CONFIG_SCSI_TGT is not set
-# CONFIG_SCSI_NETLINK is not set
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
-CONFIG_BLK_DEV_SD=y
-# CONFIG_CHR_DEV_ST is not set
-# CONFIG_CHR_DEV_OSST is not set
-# CONFIG_BLK_DEV_SR is not set
-# CONFIG_CHR_DEV_SG is not set
-# CONFIG_CHR_DEV_SCH is not set
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
-CONFIG_SCSI_MULTI_LUN=y
-# CONFIG_SCSI_CONSTANTS is not set
-# CONFIG_SCSI_LOGGING is not set
-# CONFIG_SCSI_SCAN_ASYNC is not set
-CONFIG_SCSI_WAIT_SCAN=m
-
-#
-# SCSI Transports
-#
-CONFIG_SCSI_SPI_ATTRS=y
-# CONFIG_SCSI_FC_ATTRS is not set
-# CONFIG_SCSI_ISCSI_ATTRS is not set
-# CONFIG_SCSI_SAS_LIBSAS is not set
-# CONFIG_SCSI_SRP_ATTRS is not set
-CONFIG_SCSI_LOWLEVEL=y
-# CONFIG_ISCSI_TCP is not set
-# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
-# CONFIG_SCSI_3W_9XXX is not set
-# CONFIG_SCSI_ACARD is not set
-# CONFIG_SCSI_AACRAID is not set
-# CONFIG_SCSI_AIC7XXX is not set
-# CONFIG_SCSI_AIC7XXX_OLD is not set
-# CONFIG_SCSI_AIC79XX is not set
-# CONFIG_SCSI_AIC94XX is not set
-# CONFIG_SCSI_ARCMSR is not set
-# CONFIG_MEGARAID_NEWGEN is not set
-# CONFIG_MEGARAID_LEGACY is not set
-# CONFIG_MEGARAID_SAS is not set
-# CONFIG_SCSI_HPTIOP is not set
-# CONFIG_SCSI_DMX3191D is not set
-# CONFIG_SCSI_FUTURE_DOMAIN is not set
-# CONFIG_SCSI_IPS is not set
-# CONFIG_SCSI_INITIO is not set
-# CONFIG_SCSI_INIA100 is not set
-# CONFIG_SCSI_STEX is not set
-CONFIG_SCSI_SYM53C8XX_2=y
-CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
-CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
-CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
-CONFIG_SCSI_SYM53C8XX_MMIO=y
-# CONFIG_SCSI_QLOGIC_1280 is not set
-# CONFIG_SCSI_QLA_FC is not set
-# CONFIG_SCSI_QLA_ISCSI is not set
-# CONFIG_SCSI_LPFC is not set
-# CONFIG_SCSI_DC395x is not set
-# CONFIG_SCSI_DC390T is not set
-# CONFIG_SCSI_NSP32 is not set
-# CONFIG_SCSI_DEBUG is not set
-# CONFIG_SCSI_SRP is not set
-# CONFIG_ATA is not set
-# CONFIG_MD is not set
-# CONFIG_FUSION is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_FIREWIRE is not set
-# CONFIG_IEEE1394 is not set
-# CONFIG_I2O is not set
-CONFIG_NETDEVICES=y
-# CONFIG_NETDEVICES_MULTIQUEUE is not set
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_MACVLAN is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-# CONFIG_VETH is not set
-# CONFIG_IP1000 is not set
-# CONFIG_ARCNET is not set
-# CONFIG_PHYLIB is not set
-CONFIG_NET_ETHERNET=y
-# CONFIG_MII is not set
-# CONFIG_STNIC is not set
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_CASSINI is not set
-# CONFIG_NET_VENDOR_3COM is not set
-# CONFIG_SMC91X is not set
-# CONFIG_SMC911X is not set
-CONFIG_NET_TULIP=y
-# CONFIG_DE2104X is not set
-CONFIG_TULIP=y
-# CONFIG_TULIP_MWI is not set
-# CONFIG_TULIP_MMIO is not set
-# CONFIG_TULIP_NAPI is not set
-# CONFIG_DE4X5 is not set
-# CONFIG_WINBOND_840 is not set
-# CONFIG_DM9102 is not set
-# CONFIG_ULI526X is not set
-# CONFIG_HP100 is not set
-# CONFIG_IBM_NEW_EMAC_ZMII is not set
-# CONFIG_IBM_NEW_EMAC_RGMII is not set
-# CONFIG_IBM_NEW_EMAC_TAH is not set
-# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
-CONFIG_NET_PCI=y
-# CONFIG_PCNET32 is not set
-# CONFIG_AMD8111_ETH is not set
-# CONFIG_ADAPTEC_STARFIRE is not set
-# CONFIG_B44 is not set
-# CONFIG_FORCEDETH is not set
-# CONFIG_EEPRO100 is not set
-# CONFIG_E100 is not set
-# CONFIG_FEALNX is not set
-# CONFIG_NATSEMI is not set
-# CONFIG_NE2K_PCI is not set
-# CONFIG_8139CP is not set
-# CONFIG_8139TOO is not set
-# CONFIG_SIS900 is not set
-# CONFIG_EPIC100 is not set
-# CONFIG_SUNDANCE is not set
-# CONFIG_TLAN is not set
-# CONFIG_VIA_RHINE is not set
-# CONFIG_SC92031 is not set
-CONFIG_NETDEV_1000=y
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_E1000E is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SIS190 is not set
-# CONFIG_SKGE is not set
-# CONFIG_SKY2 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_VIA_VELOCITY is not set
-# CONFIG_TIGON3 is not set
-# CONFIG_BNX2 is not set
-# CONFIG_QLA3XXX is not set
-# CONFIG_ATL1 is not set
-CONFIG_NETDEV_10000=y
-# CONFIG_CHELSIO_T1 is not set
-# CONFIG_CHELSIO_T3 is not set
-# CONFIG_IXGBE is not set
-# CONFIG_IXGB is not set
-# CONFIG_S2IO is not set
-# CONFIG_MYRI10GE is not set
-# CONFIG_NETXEN_NIC is not set
-# CONFIG_NIU is not set
-# CONFIG_MLX4_CORE is not set
-# CONFIG_TEHUTI is not set
-# CONFIG_TR is not set
-
-#
-# Wireless LAN
-#
-# CONFIG_WLAN_PRE80211 is not set
-# CONFIG_WLAN_80211 is not set
-# CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_NET_FC is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_ISDN is not set
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-# CONFIG_INPUT_POLLDEV is not set
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-CONFIG_INPUT_MOUSEDEV_PSAUX=y
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-CONFIG_INPUT_KEYBOARD=y
-CONFIG_KEYBOARD_ATKBD=y
-# CONFIG_KEYBOARD_SUNKBD is not set
-# CONFIG_KEYBOARD_LKKBD is not set
-# CONFIG_KEYBOARD_XTKBD is not set
-# CONFIG_KEYBOARD_NEWTON is not set
-# CONFIG_KEYBOARD_STOWAWAY is not set
-CONFIG_INPUT_MOUSE=y
-CONFIG_MOUSE_PS2=y
-CONFIG_MOUSE_PS2_ALPS=y
-CONFIG_MOUSE_PS2_LOGIPS2PP=y
-CONFIG_MOUSE_PS2_SYNAPTICS=y
-CONFIG_MOUSE_PS2_LIFEBOOK=y
-CONFIG_MOUSE_PS2_TRACKPOINT=y
-# CONFIG_MOUSE_PS2_TOUCHKIT is not set
-# CONFIG_MOUSE_SERIAL is not set
-# CONFIG_MOUSE_APPLETOUCH is not set
-# CONFIG_MOUSE_VSXXXAA is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TABLET is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-CONFIG_SERIO=y
-CONFIG_SERIO_I8042=y
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_PCIPS2 is not set
-CONFIG_SERIO_LIBPS2=y
-# CONFIG_SERIO_RAW is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-# CONFIG_VT_HW_CONSOLE_BINDING is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_SH_SCI=y
-CONFIG_SERIAL_SH_SCI_NR_UARTS=2
-CONFIG_SERIAL_SH_SCI_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-# CONFIG_SERIAL_JSM is not set
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-# CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-# CONFIG_RAW_DRIVER is not set
-# CONFIG_TCG_TPM is not set
-CONFIG_DEVPORT=y
-CONFIG_I2C=m
-CONFIG_I2C_BOARDINFO=y
-# CONFIG_I2C_CHARDEV is not set
-
-#
-# I2C Algorithms
-#
-# CONFIG_I2C_ALGOBIT is not set
-# CONFIG_I2C_ALGOPCF is not set
-# CONFIG_I2C_ALGOPCA is not set
-
-#
-# I2C Hardware Bus support
-#
-# CONFIG_I2C_ALI1535 is not set
-# CONFIG_I2C_ALI1563 is not set
-# CONFIG_I2C_ALI15X3 is not set
-# CONFIG_I2C_AMD756 is not set
-# CONFIG_I2C_AMD8111 is not set
-# CONFIG_I2C_I801 is not set
-# CONFIG_I2C_I810 is not set
-# CONFIG_I2C_PIIX4 is not set
-# CONFIG_I2C_NFORCE2 is not set
-# CONFIG_I2C_OCORES is not set
-# CONFIG_I2C_PARPORT_LIGHT is not set
-# CONFIG_I2C_PROSAVAGE is not set
-# CONFIG_I2C_SAVAGE4 is not set
-# CONFIG_I2C_SIMTEC is not set
-# CONFIG_I2C_SIS5595 is not set
-# CONFIG_I2C_SIS630 is not set
-# CONFIG_I2C_SIS96X is not set
-# CONFIG_I2C_TAOS_EVM is not set
-# CONFIG_I2C_STUB is not set
-# CONFIG_I2C_VIA is not set
-# CONFIG_I2C_VIAPRO is not set
-# CONFIG_I2C_VOODOO3 is not set
-
-#
-# Miscellaneous I2C Chip support
-#
-# CONFIG_SENSORS_DS1337 is not set
-# CONFIG_SENSORS_DS1374 is not set
-# CONFIG_DS1682 is not set
-# CONFIG_SENSORS_EEPROM is not set
-# CONFIG_SENSORS_PCF8574 is not set
-# CONFIG_SENSORS_PCA9539 is not set
-# CONFIG_SENSORS_PCF8591 is not set
-# CONFIG_SENSORS_MAX6875 is not set
-# CONFIG_SENSORS_TSL2550 is not set
-# CONFIG_I2C_DEBUG_CORE is not set
-# CONFIG_I2C_DEBUG_ALGO is not set
-# CONFIG_I2C_DEBUG_BUS is not set
-# CONFIG_I2C_DEBUG_CHIP is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-# CONFIG_W1 is not set
-# CONFIG_POWER_SUPPLY is not set
-CONFIG_HWMON=y
-# CONFIG_HWMON_VID is not set
-# CONFIG_SENSORS_AD7418 is not set
-# CONFIG_SENSORS_ADM1021 is not set
-# CONFIG_SENSORS_ADM1025 is not set
-# CONFIG_SENSORS_ADM1026 is not set
-# CONFIG_SENSORS_ADM1029 is not set
-# CONFIG_SENSORS_ADM1031 is not set
-# CONFIG_SENSORS_ADM9240 is not set
-# CONFIG_SENSORS_ADT7470 is not set
-# CONFIG_SENSORS_ATXP1 is not set
-# CONFIG_SENSORS_DS1621 is not set
-# CONFIG_SENSORS_F71805F is not set
-# CONFIG_SENSORS_F71882FG is not set
-# CONFIG_SENSORS_F75375S is not set
-# CONFIG_SENSORS_GL518SM is not set
-# CONFIG_SENSORS_GL520SM is not set
-# CONFIG_SENSORS_IT87 is not set
-# CONFIG_SENSORS_LM63 is not set
-# CONFIG_SENSORS_LM75 is not set
-# CONFIG_SENSORS_LM77 is not set
-# CONFIG_SENSORS_LM78 is not set
-# CONFIG_SENSORS_LM80 is not set
-# CONFIG_SENSORS_LM83 is not set
-# CONFIG_SENSORS_LM85 is not set
-# CONFIG_SENSORS_LM87 is not set
-# CONFIG_SENSORS_LM90 is not set
-# CONFIG_SENSORS_LM92 is not set
-# CONFIG_SENSORS_LM93 is not set
-# CONFIG_SENSORS_MAX1619 is not set
-# CONFIG_SENSORS_MAX6650 is not set
-# CONFIG_SENSORS_PC87360 is not set
-# CONFIG_SENSORS_PC87427 is not set
-# CONFIG_SENSORS_SIS5595 is not set
-# CONFIG_SENSORS_DME1737 is not set
-# CONFIG_SENSORS_SMSC47M1 is not set
-# CONFIG_SENSORS_SMSC47M192 is not set
-# CONFIG_SENSORS_SMSC47B397 is not set
-# CONFIG_SENSORS_THMC50 is not set
-# CONFIG_SENSORS_VIA686A is not set
-# CONFIG_SENSORS_VT1211 is not set
-# CONFIG_SENSORS_VT8231 is not set
-# CONFIG_SENSORS_W83781D is not set
-# CONFIG_SENSORS_W83791D is not set
-# CONFIG_SENSORS_W83792D is not set
-# CONFIG_SENSORS_W83793 is not set
-# CONFIG_SENSORS_W83L785TS is not set
-# CONFIG_SENSORS_W83627HF is not set
-# CONFIG_SENSORS_W83627EHF is not set
-# CONFIG_HWMON_DEBUG_CHIP is not set
-CONFIG_WATCHDOG=y
-# CONFIG_WATCHDOG_NOWAYOUT is not set
-
-#
-# Watchdog Device Drivers
-#
-# CONFIG_SOFT_WATCHDOG is not set
-
-#
-# PCI-based Watchdog Cards
-#
-# CONFIG_PCIPCWATCHDOG is not set
-# CONFIG_WDTPCI is not set
-
-#
-# Sonics Silicon Backplane
-#
-CONFIG_SSB_POSSIBLE=y
-# CONFIG_SSB is not set
-
-#
-# Multifunction device drivers
-#
-# CONFIG_MFD_SM501 is not set
-
-#
-# Multimedia devices
-#
-CONFIG_VIDEO_DEV=m
-# CONFIG_VIDEO_V4L1 is not set
-# CONFIG_VIDEO_V4L1_COMPAT is not set
-CONFIG_VIDEO_V4L2=y
-CONFIG_VIDEO_CAPTURE_DRIVERS=y
-# CONFIG_VIDEO_ADV_DEBUG is not set
-CONFIG_VIDEO_HELPER_CHIPS_AUTO=y
-# CONFIG_VIDEO_VIVI is not set
-# CONFIG_VIDEO_SAA5246A is not set
-# CONFIG_VIDEO_SAA5249 is not set
-# CONFIG_VIDEO_SAA7134 is not set
-# CONFIG_VIDEO_HEXIUM_ORION is not set
-# CONFIG_VIDEO_HEXIUM_GEMINI is not set
-# CONFIG_VIDEO_CX88 is not set
-# CONFIG_VIDEO_CX23885 is not set
-# CONFIG_VIDEO_CAFE_CCIC is not set
-# CONFIG_RADIO_ADAPTERS is not set
-CONFIG_DVB_CORE=y
-# CONFIG_DVB_CORE_ATTACH is not set
-CONFIG_DVB_CAPTURE_DRIVERS=y
-
-#
-# Supported SAA7146 based PCI Adapters
-#
-
-#
-# Supported FlexCopII (B2C2) Adapters
-#
-# CONFIG_DVB_B2C2_FLEXCOP is not set
-
-#
-# Supported BT878 Adapters
-#
-
-#
-# Supported Pluto2 Adapters
-#
-# CONFIG_DVB_PLUTO2 is not set
-
-#
-# Supported DVB Frontends
-#
-
-#
-# Customise DVB Frontends
-#
-# CONFIG_DVB_FE_CUSTOMISE is not set
-
-#
-# DVB-S (satellite) frontends
-#
-# CONFIG_DVB_STV0299 is not set
-# CONFIG_DVB_CX24110 is not set
-# CONFIG_DVB_CX24123 is not set
-# CONFIG_DVB_TDA8083 is not set
-# CONFIG_DVB_MT312 is not set
-# CONFIG_DVB_VES1X93 is not set
-# CONFIG_DVB_S5H1420 is not set
-# CONFIG_DVB_TDA10086 is not set
-
-#
-# DVB-T (terrestrial) frontends
-#
-# CONFIG_DVB_SP8870 is not set
-# CONFIG_DVB_SP887X is not set
-# CONFIG_DVB_CX22700 is not set
-# CONFIG_DVB_CX22702 is not set
-# CONFIG_DVB_L64781 is not set
-# CONFIG_DVB_TDA1004X is not set
-# CONFIG_DVB_NXT6000 is not set
-# CONFIG_DVB_MT352 is not set
-# CONFIG_DVB_ZL10353 is not set
-# CONFIG_DVB_DIB3000MB is not set
-# CONFIG_DVB_DIB3000MC is not set
-# CONFIG_DVB_DIB7000M is not set
-# CONFIG_DVB_DIB7000P is not set
-
-#
-# DVB-C (cable) frontends
-#
-# CONFIG_DVB_VES1820 is not set
-# CONFIG_DVB_TDA10021 is not set
-# CONFIG_DVB_TDA10023 is not set
-# CONFIG_DVB_STV0297 is not set
-
-#
-# ATSC (North American/Korean Terrestrial/Cable DTV) frontends
-#
-# CONFIG_DVB_NXT200X is not set
-# CONFIG_DVB_OR51211 is not set
-# CONFIG_DVB_OR51132 is not set
-# CONFIG_DVB_BCM3510 is not set
-# CONFIG_DVB_LGDT330X is not set
-# CONFIG_DVB_S5H1409 is not set
-
-#
-# Tuners/PLL support
-#
-# CONFIG_DVB_PLL is not set
-# CONFIG_DVB_TDA826X is not set
-# CONFIG_DVB_TDA827X is not set
-# CONFIG_DVB_TUNER_QT1010 is not set
-# CONFIG_DVB_TUNER_MT2060 is not set
-# CONFIG_DVB_TUNER_MT2266 is not set
-# CONFIG_DVB_TUNER_MT2131 is not set
-# CONFIG_DVB_TUNER_DIB0070 is not set
-
-#
-# Miscellaneous devices
-#
-# CONFIG_DVB_LNBP21 is not set
-# CONFIG_DVB_ISL6421 is not set
-# CONFIG_DVB_TUA6100 is not set
-CONFIG_DAB=y
-
-#
-# Graphics support
-#
-# CONFIG_DRM is not set
-# CONFIG_VGASTATE is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=y
-CONFIG_FB=y
-CONFIG_FIRMWARE_EDID=y
-# CONFIG_FB_DDC is not set
-CONFIG_FB_CFB_FILLRECT=y
-CONFIG_FB_CFB_COPYAREA=y
-CONFIG_FB_CFB_IMAGEBLIT=y
-# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
-# CONFIG_FB_SYS_FILLRECT is not set
-# CONFIG_FB_SYS_COPYAREA is not set
-# CONFIG_FB_SYS_IMAGEBLIT is not set
-# CONFIG_FB_SYS_FOPS is not set
-CONFIG_FB_DEFERRED_IO=y
-# CONFIG_FB_SVGALIB is not set
-# CONFIG_FB_MACMODES is not set
-# CONFIG_FB_BACKLIGHT is not set
-CONFIG_FB_MODE_HELPERS=y
-# CONFIG_FB_TILEBLITTING is not set
-
-#
-# Frame buffer hardware drivers
-#
-# CONFIG_FB_CIRRUS is not set
-# CONFIG_FB_PM2 is not set
-# CONFIG_FB_CYBER2000 is not set
-# CONFIG_FB_ASILIANT is not set
-# CONFIG_FB_IMSTT is not set
-# CONFIG_FB_S1D13XXX is not set
-# CONFIG_FB_NVIDIA is not set
-# CONFIG_FB_RIVA is not set
-# CONFIG_FB_MATROX is not set
-# CONFIG_FB_RADEON is not set
-# CONFIG_FB_ATY128 is not set
-# CONFIG_FB_ATY is not set
-# CONFIG_FB_S3 is not set
-# CONFIG_FB_SAVAGE is not set
-# CONFIG_FB_SIS is not set
-# CONFIG_FB_NEOMAGIC is not set
-CONFIG_FB_KYRO=y
-# CONFIG_FB_3DFX is not set
-# CONFIG_FB_VOODOO1 is not set
-# CONFIG_FB_VT8623 is not set
-# CONFIG_FB_TRIDENT is not set
-# CONFIG_FB_ARK is not set
-# CONFIG_FB_PM3 is not set
-# CONFIG_FB_VIRTUAL is not set
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Display device support
-#
-# CONFIG_DISPLAY_SUPPORT is not set
-
-#
-# Console display driver support
-#
-CONFIG_DUMMY_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE=y
-# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
-# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
-CONFIG_FONTS=y
-# CONFIG_FONT_8x8 is not set
-CONFIG_FONT_8x16=y
-# CONFIG_FONT_6x11 is not set
-# CONFIG_FONT_7x14 is not set
-# CONFIG_FONT_PEARL_8x8 is not set
-# CONFIG_FONT_ACORN_8x8 is not set
-# CONFIG_FONT_MINI_4x6 is not set
-# CONFIG_FONT_SUN8x16 is not set
-# CONFIG_FONT_SUN12x22 is not set
-# CONFIG_FONT_10x18 is not set
-CONFIG_LOGO=y
-# CONFIG_LOGO_LINUX_MONO is not set
-# CONFIG_LOGO_LINUX_VGA16 is not set
-# CONFIG_LOGO_LINUX_CLUT224 is not set
-# CONFIG_LOGO_SUPERH_MONO is not set
-# CONFIG_LOGO_SUPERH_VGA16 is not set
-CONFIG_LOGO_SUPERH_CLUT224=y
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-CONFIG_HID_SUPPORT=y
-CONFIG_HID=y
-# CONFIG_HID_DEBUG is not set
-# CONFIG_HIDRAW is not set
-CONFIG_USB_SUPPORT=y
-CONFIG_USB_ARCH_HAS_HCD=y
-CONFIG_USB_ARCH_HAS_OHCI=y
-CONFIG_USB_ARCH_HAS_EHCI=y
-# CONFIG_USB is not set
-
-#
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
-#
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-# CONFIG_MMC is not set
-# CONFIG_NEW_LEDS is not set
-# CONFIG_INFINIBAND is not set
-# CONFIG_RTC_CLASS is not set
-
-#
-# Userspace I/O
-#
-# CONFIG_UIO is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
-# CONFIG_EXT4DEV_FS is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-CONFIG_FS_MBCACHE=y
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_GFS2_FS is not set
-# CONFIG_OCFS2_FS is not set
-CONFIG_MINIX_FS=y
-CONFIG_ROMFS_FS=y
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-# CONFIG_FUSE_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-# CONFIG_TMPFS_POSIX_ACL is not set
-CONFIG_HUGETLBFS=y
-CONFIG_HUGETLB_PAGE=y
-# CONFIG_CONFIGFS_FS is not set
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-CONFIG_NETWORK_FILESYSTEMS=y
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V3_ACL is not set
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
-# CONFIG_NFSD is not set
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=y
-# CONFIG_SUNRPC_BIND34 is not set
-# CONFIG_RPCSEC_GSS_KRB5 is not set
-# CONFIG_RPCSEC_GSS_SPKM3 is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-CONFIG_PARTITION_ADVANCED=y
-# CONFIG_ACORN_PARTITION is not set
-# CONFIG_OSF_PARTITION is not set
-# CONFIG_AMIGA_PARTITION is not set
-# CONFIG_ATARI_PARTITION is not set
-# CONFIG_MAC_PARTITION is not set
-CONFIG_MSDOS_PARTITION=y
-# CONFIG_BSD_DISKLABEL is not set
-# CONFIG_MINIX_SUBPARTITION is not set
-# CONFIG_SOLARIS_X86_PARTITION is not set
-# CONFIG_UNIXWARE_DISKLABEL is not set
-# CONFIG_LDM_PARTITION is not set
-# CONFIG_SGI_PARTITION is not set
-# CONFIG_ULTRIX_PARTITION is not set
-# CONFIG_SUN_PARTITION is not set
-# CONFIG_KARMA_PARTITION is not set
-# CONFIG_EFI_PARTITION is not set
-# CONFIG_SYSV68_PARTITION is not set
-# CONFIG_NLS is not set
-# CONFIG_DLM is not set
-CONFIG_INSTRUMENTATION=y
-# CONFIG_PROFILING is not set
-# CONFIG_MARKERS is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_WARN_DEPRECATED=y
-CONFIG_ENABLE_MUST_CHECK=y
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_UNUSED_SYMBOLS is not set
-CONFIG_DEBUG_FS=y
-# CONFIG_HEADERS_CHECK is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_SHIRQ is not set
-CONFIG_DETECT_SOFTLOCKUP=y
-CONFIG_SCHED_DEBUG=y
-CONFIG_SCHEDSTATS=y
-# CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
-# CONFIG_DEBUG_RT_MUTEXES is not set
-# CONFIG_RT_MUTEX_TESTER is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_MUTEXES is not set
-# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
-# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-# CONFIG_DEBUG_KOBJECT is not set
-CONFIG_DEBUG_BUGVERBOSE=y
-# CONFIG_DEBUG_INFO is not set
-# CONFIG_DEBUG_VM is not set
-# CONFIG_DEBUG_LIST is not set
-# CONFIG_DEBUG_SG is not set
-CONFIG_FRAME_POINTER=y
-CONFIG_FORCED_INLINING=y
-# CONFIG_BOOT_PRINTK_DELAY is not set
-# CONFIG_RCU_TORTURE_TEST is not set
-# CONFIG_FAULT_INJECTION is not set
-# CONFIG_SAMPLES is not set
-# CONFIG_EARLY_PRINTK is not set
-CONFIG_SH64_PROC_TLB=y
-CONFIG_SH64_PROC_ASIDS=y
-CONFIG_SH64_SR_WATCH=y
-# CONFIG_POOR_MANS_STRACE is not set
-# CONFIG_SH_ALPHANUMERIC is not set
-# CONFIG_SH_NO_BSS_INIT is not set
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-# CONFIG_SECURITY_FILE_CAPABILITIES is not set
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC16 is not set
-# CONFIG_CRC_ITU_T is not set
-CONFIG_CRC32=y
-# CONFIG_CRC7 is not set
-# CONFIG_LIBCRC32C is not set
-CONFIG_PLIST=y
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
-CONFIG_HAS_DMA=y
diff --git a/arch/sh64/configs/harp_defconfig b/arch/sh64/configs/harp_defconfig
deleted file mode 100644
index ba302cd0c285..000000000000
--- a/arch/sh64/configs/harp_defconfig
+++ /dev/null
@@ -1,745 +0,0 @@
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24-rc1
-# Fri Nov  2 14:35:57 2007
-#
-CONFIG_SUPERH=y
-CONFIG_SUPERH64=y
-CONFIG_MMU=y
-CONFIG_QUICKLIST=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_ARCH_NO_VIRT_TO_BUS=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# General setup
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_LOCK_KERNEL=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-CONFIG_SWAP=y
-# CONFIG_SYSVIPC is not set
-CONFIG_POSIX_MQUEUE=y
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_TASKSTATS is not set
-# CONFIG_USER_NS is not set
-# CONFIG_AUDIT is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_CGROUPS is not set
-CONFIG_FAIR_GROUP_SCHED=y
-CONFIG_FAIR_USER_SCHED=y
-# CONFIG_FAIR_CGROUP_SCHED is not set
-CONFIG_SYSFS_DEPRECATED=y
-# CONFIG_RELAY is not set
-# CONFIG_BLK_DEV_INITRD is not set
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_SYSCTL=y
-# CONFIG_EMBEDDED is not set
-CONFIG_UID16=y
-CONFIG_SYSCTL_SYSCALL=y
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_ALL is not set
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_ANON_INODES=y
-CONFIG_EPOLL=y
-CONFIG_SIGNALFD=y
-CONFIG_EVENTFD=y
-CONFIG_SHMEM=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
-# CONFIG_SLOB is not set
-CONFIG_RT_MUTEXES=y
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-# CONFIG_MODULES is not set
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-# CONFIG_BLK_DEV_BSG is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_DEFAULT_AS is not set
-# CONFIG_DEFAULT_DEADLINE is not set
-CONFIG_DEFAULT_CFQ=y
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="cfq"
-
-#
-# System type
-#
-# CONFIG_SH_SIMULATOR is not set
-# CONFIG_SH_CAYMAN is not set
-CONFIG_SH_HARP=y
-CONFIG_CPU_SH5=y
-CONFIG_CPU_SUBTYPE_SH5_101=y
-# CONFIG_CPU_SUBTYPE_SH5_103 is not set
-CONFIG_LITTLE_ENDIAN=y
-# CONFIG_BIG_ENDIAN is not set
-CONFIG_SH_FPU=y
-# CONFIG_SH64_FPU_DENORM_FLUSH is not set
-CONFIG_SH64_PGTABLE_2_LEVEL=y
-# CONFIG_SH64_PGTABLE_3_LEVEL is not set
-CONFIG_HUGETLB_PAGE_SIZE_64K=y
-# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
-# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
-CONFIG_SH64_USER_MISALIGNED_FIXUP=y
-
-#
-# Memory options
-#
-CONFIG_CACHED_MEMORY_OFFSET=0x20000000
-CONFIG_MEMORY_START=0x80000000
-CONFIG_MEMORY_SIZE_IN_MB=128
-
-#
-# Cache options
-#
-CONFIG_DCACHE_WRITE_BACK=y
-# CONFIG_DCACHE_WRITE_THROUGH is not set
-# CONFIG_DCACHE_DISABLED is not set
-# CONFIG_ICACHE_DISABLED is not set
-CONFIG_PCIDEVICE_MEMORY_START=C0000000
-CONFIG_DEVICE_MEMORY_START=E0000000
-CONFIG_FLASH_MEMORY_START=0x00000000
-CONFIG_PCI_BLOCK_START=0x40000000
-
-#
-# CPU Subtype specific options
-#
-CONFIG_SH64_ID2815_WORKAROUND=y
-
-#
-# Misc options
-#
-# CONFIG_SH_DMA is not set
-CONFIG_PREEMPT=y
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-# CONFIG_DISCONTIGMEM_MANUAL is not set
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
-# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=0
-CONFIG_NR_QUICK=1
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-# CONFIG_ARCH_SUPPORTS_MSI is not set
-# CONFIG_PCCARD is not set
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Networking
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-CONFIG_UNIX=y
-CONFIG_XFRM=y
-# CONFIG_XFRM_USER is not set
-# CONFIG_XFRM_SUB_POLICY is not set
-# CONFIG_XFRM_MIGRATE is not set
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_FIB_HASH=y
-CONFIG_IP_PNP=y
-# CONFIG_IP_PNP_DHCP is not set
-# CONFIG_IP_PNP_BOOTP is not set
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_XFRM_TUNNEL is not set
-# CONFIG_INET_TUNNEL is not set
-CONFIG_INET_XFRM_MODE_TRANSPORT=y
-CONFIG_INET_XFRM_MODE_TUNNEL=y
-CONFIG_INET_XFRM_MODE_BEET=y
-# CONFIG_INET_LRO is not set
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
-# CONFIG_TCP_MD5SIG is not set
-# CONFIG_IPV6 is not set
-# CONFIG_INET6_XFRM_TUNNEL is not set
-# CONFIG_INET6_TUNNEL is not set
-# CONFIG_NETWORK_SECMARK is not set
-# CONFIG_NETFILTER is not set
-# CONFIG_IP_DCCP is not set
-# CONFIG_IP_SCTP is not set
-# CONFIG_TIPC is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-# CONFIG_AF_RXRPC is not set
-
-#
-# Wireless
-#
-# CONFIG_CFG80211 is not set
-# CONFIG_WIRELESS_EXT is not set
-# CONFIG_MAC80211 is not set
-# CONFIG_IEEE80211 is not set
-# CONFIG_RFKILL is not set
-# CONFIG_NET_9P is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_FW_LOADER is not set
-# CONFIG_DEBUG_DRIVER is not set
-# CONFIG_DEBUG_DEVRES is not set
-# CONFIG_SYS_HYPERVISOR is not set
-# CONFIG_CONNECTOR is not set
-# CONFIG_MTD is not set
-# CONFIG_PARPORT is not set
-CONFIG_BLK_DEV=y
-# CONFIG_BLK_DEV_COW_COMMON is not set
-CONFIG_BLK_DEV_LOOP=y
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_BLK_DEV_RAM_SIZE=4096
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-# CONFIG_CDROM_PKTCDVD is not set
-# CONFIG_ATA_OVER_ETH is not set
-CONFIG_MISC_DEVICES=y
-# CONFIG_EEPROM_93CX6 is not set
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_RAID_ATTRS is not set
-CONFIG_SCSI=y
-CONFIG_SCSI_DMA=y
-# CONFIG_SCSI_TGT is not set
-# CONFIG_SCSI_NETLINK is not set
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
-CONFIG_BLK_DEV_SD=y
-# CONFIG_CHR_DEV_ST is not set
-# CONFIG_CHR_DEV_OSST is not set
-# CONFIG_BLK_DEV_SR is not set
-# CONFIG_CHR_DEV_SG is not set
-# CONFIG_CHR_DEV_SCH is not set
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
-CONFIG_SCSI_MULTI_LUN=y
-# CONFIG_SCSI_CONSTANTS is not set
-# CONFIG_SCSI_LOGGING is not set
-# CONFIG_SCSI_SCAN_ASYNC is not set
-
-#
-# SCSI Transports
-#
-CONFIG_SCSI_SPI_ATTRS=y
-# CONFIG_SCSI_FC_ATTRS is not set
-# CONFIG_SCSI_ISCSI_ATTRS is not set
-# CONFIG_SCSI_SAS_LIBSAS is not set
-# CONFIG_SCSI_SRP_ATTRS is not set
-CONFIG_SCSI_LOWLEVEL=y
-# CONFIG_ISCSI_TCP is not set
-# CONFIG_SCSI_DEBUG is not set
-# CONFIG_ATA is not set
-# CONFIG_MD is not set
-CONFIG_NETDEVICES=y
-# CONFIG_NETDEVICES_MULTIQUEUE is not set
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_MACVLAN is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-# CONFIG_VETH is not set
-# CONFIG_PHYLIB is not set
-CONFIG_NET_ETHERNET=y
-# CONFIG_MII is not set
-# CONFIG_STNIC is not set
-# CONFIG_SMC91X is not set
-# CONFIG_SMC911X is not set
-# CONFIG_IBM_NEW_EMAC_ZMII is not set
-# CONFIG_IBM_NEW_EMAC_RGMII is not set
-# CONFIG_IBM_NEW_EMAC_TAH is not set
-# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
-# CONFIG_B44 is not set
-CONFIG_NETDEV_1000=y
-CONFIG_NETDEV_10000=y
-
-#
-# Wireless LAN
-#
-# CONFIG_WLAN_PRE80211 is not set
-# CONFIG_WLAN_80211 is not set
-# CONFIG_WAN is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_ISDN is not set
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-# CONFIG_INPUT_POLLDEV is not set
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TABLET is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-# CONFIG_SERIO is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-# CONFIG_VT_HW_CONSOLE_BINDING is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_SH_SCI=y
-CONFIG_SERIAL_SH_SCI_NR_UARTS=2
-CONFIG_SERIAL_SH_SCI_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-# CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
-# CONFIG_R3964 is not set
-# CONFIG_RAW_DRIVER is not set
-# CONFIG_TCG_TPM is not set
-# CONFIG_I2C is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-# CONFIG_W1 is not set
-# CONFIG_POWER_SUPPLY is not set
-CONFIG_HWMON=y
-# CONFIG_HWMON_VID is not set
-# CONFIG_SENSORS_F71805F is not set
-# CONFIG_SENSORS_F71882FG is not set
-# CONFIG_SENSORS_IT87 is not set
-# CONFIG_SENSORS_PC87360 is not set
-# CONFIG_SENSORS_PC87427 is not set
-# CONFIG_SENSORS_SMSC47M1 is not set
-# CONFIG_SENSORS_SMSC47B397 is not set
-# CONFIG_SENSORS_VT1211 is not set
-# CONFIG_SENSORS_W83627HF is not set
-# CONFIG_SENSORS_W83627EHF is not set
-# CONFIG_HWMON_DEBUG_CHIP is not set
-CONFIG_WATCHDOG=y
-# CONFIG_WATCHDOG_NOWAYOUT is not set
-
-#
-# Watchdog Device Drivers
-#
-# CONFIG_SOFT_WATCHDOG is not set
-
-#
-# Sonics Silicon Backplane
-#
-CONFIG_SSB_POSSIBLE=y
-# CONFIG_SSB is not set
-
-#
-# Multifunction device drivers
-#
-# CONFIG_MFD_SM501 is not set
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-# CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
-
-#
-# Graphics support
-#
-# CONFIG_VGASTATE is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=y
-CONFIG_FB=y
-CONFIG_FIRMWARE_EDID=y
-# CONFIG_FB_DDC is not set
-# CONFIG_FB_CFB_FILLRECT is not set
-# CONFIG_FB_CFB_COPYAREA is not set
-# CONFIG_FB_CFB_IMAGEBLIT is not set
-# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
-# CONFIG_FB_SYS_FILLRECT is not set
-# CONFIG_FB_SYS_COPYAREA is not set
-# CONFIG_FB_SYS_IMAGEBLIT is not set
-# CONFIG_FB_SYS_FOPS is not set
-CONFIG_FB_DEFERRED_IO=y
-# CONFIG_FB_SVGALIB is not set
-# CONFIG_FB_MACMODES is not set
-# CONFIG_FB_BACKLIGHT is not set
-CONFIG_FB_MODE_HELPERS=y
-# CONFIG_FB_TILEBLITTING is not set
-
-#
-# Frame buffer hardware drivers
-#
-# CONFIG_FB_S1D13XXX is not set
-# CONFIG_FB_VIRTUAL is not set
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Display device support
-#
-# CONFIG_DISPLAY_SUPPORT is not set
-
-#
-# Console display driver support
-#
-CONFIG_DUMMY_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE=y
-# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
-# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
-CONFIG_FONTS=y
-# CONFIG_FONT_8x8 is not set
-CONFIG_FONT_8x16=y
-# CONFIG_FONT_6x11 is not set
-# CONFIG_FONT_7x14 is not set
-# CONFIG_FONT_PEARL_8x8 is not set
-# CONFIG_FONT_ACORN_8x8 is not set
-# CONFIG_FONT_MINI_4x6 is not set
-# CONFIG_FONT_SUN8x16 is not set
-# CONFIG_FONT_SUN12x22 is not set
-# CONFIG_FONT_10x18 is not set
-CONFIG_LOGO=y
-# CONFIG_LOGO_LINUX_MONO is not set
-# CONFIG_LOGO_LINUX_VGA16 is not set
-# CONFIG_LOGO_LINUX_CLUT224 is not set
-# CONFIG_LOGO_SUPERH_MONO is not set
-# CONFIG_LOGO_SUPERH_VGA16 is not set
-CONFIG_LOGO_SUPERH_CLUT224=y
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-CONFIG_HID_SUPPORT=y
-CONFIG_HID=y
-# CONFIG_HID_DEBUG is not set
-# CONFIG_HIDRAW is not set
-CONFIG_USB_SUPPORT=y
-CONFIG_USB_ARCH_HAS_HCD=y
-# CONFIG_USB_ARCH_HAS_OHCI is not set
-# CONFIG_USB_ARCH_HAS_EHCI is not set
-# CONFIG_USB is not set
-
-#
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
-#
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-# CONFIG_MMC is not set
-# CONFIG_NEW_LEDS is not set
-# CONFIG_RTC_CLASS is not set
-
-#
-# Userspace I/O
-#
-# CONFIG_UIO is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
-# CONFIG_EXT4DEV_FS is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-CONFIG_FS_MBCACHE=y
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_GFS2_FS is not set
-# CONFIG_OCFS2_FS is not set
-CONFIG_MINIX_FS=y
-CONFIG_ROMFS_FS=y
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-# CONFIG_FUSE_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-# CONFIG_TMPFS_POSIX_ACL is not set
-CONFIG_HUGETLBFS=y
-CONFIG_HUGETLB_PAGE=y
-# CONFIG_CONFIGFS_FS is not set
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-CONFIG_NETWORK_FILESYSTEMS=y
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V3_ACL is not set
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
-# CONFIG_NFSD is not set
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=y
-# CONFIG_SUNRPC_BIND34 is not set
-# CONFIG_RPCSEC_GSS_KRB5 is not set
-# CONFIG_RPCSEC_GSS_SPKM3 is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-CONFIG_PARTITION_ADVANCED=y
-# CONFIG_ACORN_PARTITION is not set
-# CONFIG_OSF_PARTITION is not set
-# CONFIG_AMIGA_PARTITION is not set
-# CONFIG_ATARI_PARTITION is not set
-# CONFIG_MAC_PARTITION is not set
-CONFIG_MSDOS_PARTITION=y
-# CONFIG_BSD_DISKLABEL is not set
-# CONFIG_MINIX_SUBPARTITION is not set
-# CONFIG_SOLARIS_X86_PARTITION is not set
-# CONFIG_UNIXWARE_DISKLABEL is not set
-# CONFIG_LDM_PARTITION is not set
-# CONFIG_SGI_PARTITION is not set
-# CONFIG_ULTRIX_PARTITION is not set
-# CONFIG_SUN_PARTITION is not set
-# CONFIG_KARMA_PARTITION is not set
-# CONFIG_EFI_PARTITION is not set
-# CONFIG_SYSV68_PARTITION is not set
-# CONFIG_NLS is not set
-# CONFIG_DLM is not set
-CONFIG_INSTRUMENTATION=y
-# CONFIG_PROFILING is not set
-# CONFIG_MARKERS is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_WARN_DEPRECATED=y
-CONFIG_ENABLE_MUST_CHECK=y
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_UNUSED_SYMBOLS is not set
-CONFIG_DEBUG_FS=y
-# CONFIG_HEADERS_CHECK is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_SHIRQ is not set
-CONFIG_DETECT_SOFTLOCKUP=y
-CONFIG_SCHED_DEBUG=y
-CONFIG_SCHEDSTATS=y
-# CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
-# CONFIG_DEBUG_RT_MUTEXES is not set
-# CONFIG_RT_MUTEX_TESTER is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_MUTEXES is not set
-# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
-# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-# CONFIG_DEBUG_KOBJECT is not set
-CONFIG_DEBUG_BUGVERBOSE=y
-# CONFIG_DEBUG_INFO is not set
-# CONFIG_DEBUG_VM is not set
-# CONFIG_DEBUG_LIST is not set
-# CONFIG_DEBUG_SG is not set
-CONFIG_FRAME_POINTER=y
-CONFIG_FORCED_INLINING=y
-# CONFIG_BOOT_PRINTK_DELAY is not set
-# CONFIG_FAULT_INJECTION is not set
-# CONFIG_SAMPLES is not set
-# CONFIG_EARLY_PRINTK is not set
-CONFIG_SH64_PROC_TLB=y
-CONFIG_SH64_PROC_ASIDS=y
-CONFIG_SH64_SR_WATCH=y
-# CONFIG_POOR_MANS_STRACE is not set
-# CONFIG_SH_NO_BSS_INIT is not set
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-# CONFIG_SECURITY_FILE_CAPABILITIES is not set
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC16 is not set
-# CONFIG_CRC_ITU_T is not set
-CONFIG_CRC32=y
-# CONFIG_CRC7 is not set
-# CONFIG_LIBCRC32C is not set
-CONFIG_PLIST=y
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
-CONFIG_HAS_DMA=y
diff --git a/arch/sh64/configs/sim_defconfig b/arch/sh64/configs/sim_defconfig
deleted file mode 100644
index 18476cc522c3..000000000000
--- a/arch/sh64/configs/sim_defconfig
+++ /dev/null
@@ -1,558 +0,0 @@
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24-rc1
-# Fri Nov  2 14:36:08 2007
-#
-CONFIG_SUPERH=y
-CONFIG_SUPERH64=y
-CONFIG_MMU=y
-CONFIG_QUICKLIST=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_ARCH_NO_VIRT_TO_BUS=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# General setup
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_LOCK_KERNEL=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-CONFIG_SWAP=y
-# CONFIG_SYSVIPC is not set
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_USER_NS is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_CGROUPS is not set
-CONFIG_FAIR_GROUP_SCHED=y
-CONFIG_FAIR_USER_SCHED=y
-# CONFIG_FAIR_CGROUP_SCHED is not set
-CONFIG_SYSFS_DEPRECATED=y
-# CONFIG_RELAY is not set
-# CONFIG_BLK_DEV_INITRD is not set
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_SYSCTL=y
-# CONFIG_EMBEDDED is not set
-CONFIG_UID16=y
-CONFIG_SYSCTL_SYSCALL=y
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_ALL is not set
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_ANON_INODES=y
-CONFIG_EPOLL=y
-CONFIG_SIGNALFD=y
-CONFIG_EVENTFD=y
-CONFIG_SHMEM=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
-# CONFIG_SLOB is not set
-CONFIG_RT_MUTEXES=y
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-# CONFIG_MODULES is not set
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-# CONFIG_BLK_DEV_BSG is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_DEFAULT_AS is not set
-# CONFIG_DEFAULT_DEADLINE is not set
-CONFIG_DEFAULT_CFQ=y
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="cfq"
-
-#
-# System type
-#
-CONFIG_SH_SIMULATOR=y
-# CONFIG_SH_CAYMAN is not set
-# CONFIG_SH_HARP is not set
-CONFIG_CPU_SH5=y
-CONFIG_CPU_SUBTYPE_SH5_101=y
-# CONFIG_CPU_SUBTYPE_SH5_103 is not set
-CONFIG_LITTLE_ENDIAN=y
-# CONFIG_BIG_ENDIAN is not set
-CONFIG_SH_FPU=y
-# CONFIG_SH64_FPU_DENORM_FLUSH is not set
-CONFIG_SH64_PGTABLE_2_LEVEL=y
-# CONFIG_SH64_PGTABLE_3_LEVEL is not set
-CONFIG_HUGETLB_PAGE_SIZE_64K=y
-# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
-# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
-CONFIG_SH64_USER_MISALIGNED_FIXUP=y
-
-#
-# Memory options
-#
-CONFIG_CACHED_MEMORY_OFFSET=0x20000000
-CONFIG_MEMORY_START=0x80000000
-CONFIG_MEMORY_SIZE_IN_MB=128
-
-#
-# Cache options
-#
-# CONFIG_DCACHE_WRITE_BACK is not set
-# CONFIG_DCACHE_WRITE_THROUGH is not set
-CONFIG_DCACHE_DISABLED=y
-# CONFIG_ICACHE_DISABLED is not set
-CONFIG_PCIDEVICE_MEMORY_START=C0000000
-CONFIG_DEVICE_MEMORY_START=E0000000
-CONFIG_FLASH_MEMORY_START=0x00000000
-CONFIG_PCI_BLOCK_START=0x40000000
-
-#
-# CPU Subtype specific options
-#
-CONFIG_SH64_ID2815_WORKAROUND=y
-
-#
-# Misc options
-#
-# CONFIG_SH_DMA is not set
-CONFIG_PREEMPT=y
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-# CONFIG_DISCONTIGMEM_MANUAL is not set
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
-# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=0
-CONFIG_NR_QUICK=1
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-# CONFIG_ARCH_SUPPORTS_MSI is not set
-# CONFIG_PCCARD is not set
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Networking
-#
-# CONFIG_NET is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_FW_LOADER is not set
-# CONFIG_DEBUG_DRIVER is not set
-# CONFIG_DEBUG_DEVRES is not set
-# CONFIG_SYS_HYPERVISOR is not set
-# CONFIG_MTD is not set
-# CONFIG_PARPORT is not set
-# CONFIG_BLK_DEV is not set
-# CONFIG_MISC_DEVICES is not set
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_RAID_ATTRS is not set
-CONFIG_SCSI=y
-CONFIG_SCSI_DMA=y
-# CONFIG_SCSI_TGT is not set
-# CONFIG_SCSI_NETLINK is not set
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
-CONFIG_BLK_DEV_SD=y
-# CONFIG_CHR_DEV_ST is not set
-# CONFIG_CHR_DEV_OSST is not set
-# CONFIG_BLK_DEV_SR is not set
-# CONFIG_CHR_DEV_SG is not set
-# CONFIG_CHR_DEV_SCH is not set
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
-CONFIG_SCSI_MULTI_LUN=y
-# CONFIG_SCSI_CONSTANTS is not set
-# CONFIG_SCSI_LOGGING is not set
-# CONFIG_SCSI_SCAN_ASYNC is not set
-
-#
-# SCSI Transports
-#
-CONFIG_SCSI_SPI_ATTRS=y
-# CONFIG_SCSI_FC_ATTRS is not set
-# CONFIG_SCSI_SAS_LIBSAS is not set
-# CONFIG_SCSI_SRP_ATTRS is not set
-CONFIG_SCSI_LOWLEVEL=y
-# CONFIG_SCSI_DEBUG is not set
-# CONFIG_ATA is not set
-# CONFIG_MD is not set
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-# CONFIG_INPUT_POLLDEV is not set
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TABLET is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-# CONFIG_SERIO is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-# CONFIG_VT_HW_CONSOLE_BINDING is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_SH_SCI=y
-CONFIG_SERIAL_SH_SCI_NR_UARTS=2
-CONFIG_SERIAL_SH_SCI_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_UNIX98_PTYS=y
-# CONFIG_LEGACY_PTYS is not set
-# CONFIG_IPMI_HANDLER is not set
-# CONFIG_HW_RANDOM is not set
-# CONFIG_R3964 is not set
-# CONFIG_RAW_DRIVER is not set
-# CONFIG_TCG_TPM is not set
-# CONFIG_I2C is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-# CONFIG_W1 is not set
-# CONFIG_POWER_SUPPLY is not set
-# CONFIG_HWMON is not set
-# CONFIG_WATCHDOG is not set
-
-#
-# Sonics Silicon Backplane
-#
-CONFIG_SSB_POSSIBLE=y
-# CONFIG_SSB is not set
-
-#
-# Multifunction device drivers
-#
-# CONFIG_MFD_SM501 is not set
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-CONFIG_DAB=y
-
-#
-# Graphics support
-#
-# CONFIG_VGASTATE is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=y
-CONFIG_FB=y
-CONFIG_FIRMWARE_EDID=y
-# CONFIG_FB_DDC is not set
-# CONFIG_FB_CFB_FILLRECT is not set
-# CONFIG_FB_CFB_COPYAREA is not set
-# CONFIG_FB_CFB_IMAGEBLIT is not set
-# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
-# CONFIG_FB_SYS_FILLRECT is not set
-# CONFIG_FB_SYS_COPYAREA is not set
-# CONFIG_FB_SYS_IMAGEBLIT is not set
-# CONFIG_FB_SYS_FOPS is not set
-CONFIG_FB_DEFERRED_IO=y
-# CONFIG_FB_SVGALIB is not set
-# CONFIG_FB_MACMODES is not set
-# CONFIG_FB_BACKLIGHT is not set
-CONFIG_FB_MODE_HELPERS=y
-# CONFIG_FB_TILEBLITTING is not set
-
-#
-# Frame buffer hardware drivers
-#
-# CONFIG_FB_S1D13XXX is not set
-# CONFIG_FB_VIRTUAL is not set
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Display device support
-#
-# CONFIG_DISPLAY_SUPPORT is not set
-
-#
-# Console display driver support
-#
-CONFIG_DUMMY_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE=y
-# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
-# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
-CONFIG_FONTS=y
-# CONFIG_FONT_8x8 is not set
-CONFIG_FONT_8x16=y
-# CONFIG_FONT_6x11 is not set
-# CONFIG_FONT_7x14 is not set
-# CONFIG_FONT_PEARL_8x8 is not set
-# CONFIG_FONT_ACORN_8x8 is not set
-# CONFIG_FONT_MINI_4x6 is not set
-# CONFIG_FONT_SUN8x16 is not set
-# CONFIG_FONT_SUN12x22 is not set
-# CONFIG_FONT_10x18 is not set
-CONFIG_LOGO=y
-# CONFIG_LOGO_LINUX_MONO is not set
-# CONFIG_LOGO_LINUX_VGA16 is not set
-# CONFIG_LOGO_LINUX_CLUT224 is not set
-# CONFIG_LOGO_SUPERH_MONO is not set
-# CONFIG_LOGO_SUPERH_VGA16 is not set
-CONFIG_LOGO_SUPERH_CLUT224=y
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-# CONFIG_HID_SUPPORT is not set
-# CONFIG_USB_SUPPORT is not set
-# CONFIG_MMC is not set
-# CONFIG_NEW_LEDS is not set
-# CONFIG_RTC_CLASS is not set
-
-#
-# Userspace I/O
-#
-# CONFIG_UIO is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
-# CONFIG_EXT4DEV_FS is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-CONFIG_FS_MBCACHE=y
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_GFS2_FS is not set
-CONFIG_MINIX_FS=y
-CONFIG_ROMFS_FS=y
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-# CONFIG_FUSE_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-# CONFIG_TMPFS_POSIX_ACL is not set
-CONFIG_HUGETLBFS=y
-CONFIG_HUGETLB_PAGE=y
-# CONFIG_CONFIGFS_FS is not set
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Partition Types
-#
-CONFIG_PARTITION_ADVANCED=y
-# CONFIG_ACORN_PARTITION is not set
-# CONFIG_OSF_PARTITION is not set
-# CONFIG_AMIGA_PARTITION is not set
-# CONFIG_ATARI_PARTITION is not set
-# CONFIG_MAC_PARTITION is not set
-CONFIG_MSDOS_PARTITION=y
-# CONFIG_BSD_DISKLABEL is not set
-# CONFIG_MINIX_SUBPARTITION is not set
-# CONFIG_SOLARIS_X86_PARTITION is not set
-# CONFIG_UNIXWARE_DISKLABEL is not set
-# CONFIG_LDM_PARTITION is not set
-# CONFIG_SGI_PARTITION is not set
-# CONFIG_ULTRIX_PARTITION is not set
-# CONFIG_SUN_PARTITION is not set
-# CONFIG_KARMA_PARTITION is not set
-# CONFIG_EFI_PARTITION is not set
-# CONFIG_SYSV68_PARTITION is not set
-# CONFIG_NLS is not set
-CONFIG_INSTRUMENTATION=y
-CONFIG_PROFILING=y
-# CONFIG_OPROFILE is not set
-# CONFIG_MARKERS is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_WARN_DEPRECATED=y
-CONFIG_ENABLE_MUST_CHECK=y
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_UNUSED_SYMBOLS is not set
-CONFIG_DEBUG_FS=y
-# CONFIG_HEADERS_CHECK is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_SHIRQ is not set
-CONFIG_DETECT_SOFTLOCKUP=y
-CONFIG_SCHED_DEBUG=y
-CONFIG_SCHEDSTATS=y
-# CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
-# CONFIG_DEBUG_RT_MUTEXES is not set
-# CONFIG_RT_MUTEX_TESTER is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_MUTEXES is not set
-# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
-# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-# CONFIG_DEBUG_KOBJECT is not set
-CONFIG_DEBUG_BUGVERBOSE=y
-# CONFIG_DEBUG_INFO is not set
-# CONFIG_DEBUG_VM is not set
-# CONFIG_DEBUG_LIST is not set
-# CONFIG_DEBUG_SG is not set
-CONFIG_FRAME_POINTER=y
-CONFIG_FORCED_INLINING=y
-# CONFIG_BOOT_PRINTK_DELAY is not set
-# CONFIG_FAULT_INJECTION is not set
-# CONFIG_SAMPLES is not set
-# CONFIG_EARLY_PRINTK is not set
-CONFIG_SH64_PROC_TLB=y
-CONFIG_SH64_PROC_ASIDS=y
-CONFIG_SH64_SR_WATCH=y
-# CONFIG_POOR_MANS_STRACE is not set
-CONFIG_SH_NO_BSS_INIT=y
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-# CONFIG_SECURITY_FILE_CAPABILITIES is not set
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC16 is not set
-# CONFIG_CRC_ITU_T is not set
-CONFIG_CRC32=y
-# CONFIG_CRC7 is not set
-# CONFIG_LIBCRC32C is not set
-CONFIG_PLIST=y
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
-CONFIG_HAS_DMA=y
-- 
cgit v1.2.3-59-g8ed1b


From 2f725945822dbc2e481d5e6ab4693e19a0c99972 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 8 Nov 2007 19:24:00 +0900
Subject: sh64: Kill off arch/sh64/oprofile.

The same implementation exists in arch/sh/oprofile, so get rid of
this version.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh64/oprofile/Makefile        | 12 ------------
 arch/sh64/oprofile/op_model_null.c | 23 -----------------------
 2 files changed, 35 deletions(-)
 delete mode 100644 arch/sh64/oprofile/Makefile
 delete mode 100644 arch/sh64/oprofile/op_model_null.c

(limited to 'arch')

diff --git a/arch/sh64/oprofile/Makefile b/arch/sh64/oprofile/Makefile
deleted file mode 100644
index 11a451f6a9c3..000000000000
--- a/arch/sh64/oprofile/Makefile
+++ /dev/null
@@ -1,12 +0,0 @@
-obj-$(CONFIG_OPROFILE) += oprofile.o
-
-DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
-		oprof.o cpu_buffer.o buffer_sync.o \
-		event_buffer.o oprofile_files.o \
-		oprofilefs.o oprofile_stats.o \
-		timer_int.o )
-
-profdrvr-y				:= op_model_null.o
-
-oprofile-y				:= $(DRIVER_OBJS) $(profdrvr-y)
-
diff --git a/arch/sh64/oprofile/op_model_null.c b/arch/sh64/oprofile/op_model_null.c
deleted file mode 100644
index a750ea1fee98..000000000000
--- a/arch/sh64/oprofile/op_model_null.c
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * arch/sh64/oprofile/op_model_null.c
- *
- * Copyright (C) 2003  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/kernel.h>
-#include <linux/oprofile.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-
-int __init oprofile_arch_init(struct oprofile_operations *ops)
-{
-	return -ENODEV;
-}
-
-void oprofile_arch_exit(void)
-{
-}
-
-- 
cgit v1.2.3-59-g8ed1b


From 4690bdc7c6e4f18fb58350ccde40df5fcd85a6d9 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 9 Nov 2007 13:45:42 +0900
Subject: sh: Consolidate CPU features in Kconfig.cpu.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig.cpu  | 102 ++++++++++++++++++++++++++++++++++++++++++++++++++
 arch/sh/Kconfig.sh   | 104 +--------------------------------------------------
 arch/sh/Kconfig.sh64 |  16 +-------
 3 files changed, 104 insertions(+), 118 deletions(-)
 create mode 100644 arch/sh/Kconfig.cpu

(limited to 'arch')

diff --git a/arch/sh/Kconfig.cpu b/arch/sh/Kconfig.cpu
new file mode 100644
index 000000000000..9f329dff88b1
--- /dev/null
+++ b/arch/sh/Kconfig.cpu
@@ -0,0 +1,102 @@
+menu "Processor features"
+
+choice
+	prompt "Endianess selection" 
+	default CPU_LITTLE_ENDIAN
+	help
+	  Some SuperH machines can be configured for either little or big
+	  endian byte order. These modes require different kernels.
+
+config CPU_LITTLE_ENDIAN
+	bool "Little Endian"
+
+config CPU_BIG_ENDIAN
+	bool "Big Endian"
+
+endchoice
+
+config SH_FPU
+	bool "FPU support"
+	depends on CPU_HAS_FPU
+	default y
+	help
+	  Selecting this option will enable support for SH processors that
+	  have FPU units (ie, SH77xx).
+
+	  This option must be set in order to enable the FPU.
+
+config SH_FPU_EMU
+	bool "FPU emulation support"
+	depends on !SH_FPU && EXPERIMENTAL
+	default n
+	help
+	  Selecting this option will enable support for software FPU emulation.
+	  Most SH-3 users will want to say Y here, whereas most SH-4 users will
+	  want to say N.
+
+config SH_DSP
+	bool "DSP support"
+	depends on CPU_HAS_DSP
+	default y
+	help
+	  Selecting this option will enable support for SH processors that
+	  have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
+
+	  This option must be set in order to enable the DSP.
+
+config SH_ADC
+	bool "ADC support"
+	depends on CPU_SH3
+	default y
+	help
+	  Selecting this option will allow the Linux kernel to use SH3 on-chip
+	  ADC module.
+
+	  If unsure, say N.
+
+config SH_STORE_QUEUES
+	bool "Support for Store Queues"
+	depends on CPU_SH4
+	help
+	  Selecting this option will enable an in-kernel API for manipulating
+	  the store queues integrated in the SH-4 processors.
+
+config SPECULATIVE_EXECUTION
+	bool "Speculative subroutine return"
+	depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL
+	help
+	  This enables support for a speculative instruction fetch for
+	  subroutine return. There are various pitfalls associated with
+	  this, as outlined in the SH7780 hardware manual.
+
+	  If unsure, say N.
+
+config CPU_HAS_INTEVT
+	bool
+
+config CPU_HAS_MASKREG_IRQ
+	bool
+
+config CPU_HAS_IPR_IRQ
+	bool
+
+config CPU_HAS_SR_RB
+	bool
+	help
+	  This will enable the use of SR.RB register bank usage. Processors
+	  that are lacking this bit must have another method in place for
+	  accomplishing what is taken care of by the banked registers.
+
+	  See <file:Documentation/sh/register-banks.txt> for further
+	  information on SR.RB and register banking in the kernel in general.
+
+config CPU_HAS_PTEA
+	bool
+
+config CPU_HAS_DSP
+	bool
+
+config CPU_HAS_FPU
+	bool
+
+endmenu
diff --git a/arch/sh/Kconfig.sh b/arch/sh/Kconfig.sh
index e6721b8e9dc1..23eea5cf4ca0 100644
--- a/arch/sh/Kconfig.sh
+++ b/arch/sh/Kconfig.sh
@@ -291,109 +291,7 @@ config CPU_SUBTYPE_SH7722
 endchoice
 
 source "arch/sh/mm/Kconfig"
-
-menu "Processor features"
-
-choice
-	prompt "Endianess selection" 
-	default CPU_LITTLE_ENDIAN
-	help
-	  Some SuperH machines can be configured for either little or big
-	  endian byte order. These modes require different kernels.
-
-config CPU_LITTLE_ENDIAN
-	bool "Little Endian"
-
-config CPU_BIG_ENDIAN
-	bool "Big Endian"
-
-endchoice
-
-config SH_FPU
-	bool "FPU support"
-	depends on CPU_HAS_FPU
-	default y
-	help
-	  Selecting this option will enable support for SH processors that
-	  have FPU units (ie, SH77xx).
-
-	  This option must be set in order to enable the FPU.
-
-config SH_FPU_EMU
-	bool "FPU emulation support"
-	depends on !SH_FPU && EXPERIMENTAL
-	default n
-	help
-	  Selecting this option will enable support for software FPU emulation.
-	  Most SH-3 users will want to say Y here, whereas most SH-4 users will
-	  want to say N.
-
-config SH_DSP
-	bool "DSP support"
-	depends on CPU_HAS_DSP
-	default y
-	help
-	  Selecting this option will enable support for SH processors that
-	  have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
-
-	  This option must be set in order to enable the DSP.
-
-config SH_ADC
-	bool "ADC support"
-	depends on CPU_SH3
-	default y
-	help
-	  Selecting this option will allow the Linux kernel to use SH3 on-chip
-	  ADC module.
-
-	  If unsure, say N.
-
-config SH_STORE_QUEUES
-	bool "Support for Store Queues"
-	depends on CPU_SH4
-	help
-	  Selecting this option will enable an in-kernel API for manipulating
-	  the store queues integrated in the SH-4 processors.
-
-config SPECULATIVE_EXECUTION
-	bool "Speculative subroutine return"
-	depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL
-	help
-	  This enables support for a speculative instruction fetch for
-	  subroutine return. There are various pitfalls associated with
-	  this, as outlined in the SH7780 hardware manual.
-
-	  If unsure, say N.
-
-config CPU_HAS_INTEVT
-	bool
-
-config CPU_HAS_MASKREG_IRQ
-	bool
-
-config CPU_HAS_IPR_IRQ
-	bool
-
-config CPU_HAS_SR_RB
-	bool
-	help
-	  This will enable the use of SR.RB register bank usage. Processors
-	  that are lacking this bit must have another method in place for
-	  accomplishing what is taken care of by the banked registers.
-
-	  See <file:Documentation/sh/register-banks.txt> for further
-	  information on SR.RB and register banking in the kernel in general.
-
-config CPU_HAS_PTEA
-	bool
-
-config CPU_HAS_DSP
-	bool
-
-config CPU_HAS_FPU
-	bool
-
-endmenu
+source "arch/sh/Kconfig.cpu"
 
 menu "Board support"
 
diff --git a/arch/sh/Kconfig.sh64 b/arch/sh/Kconfig.sh64
index 20db5e0c1401..10f5d30d3184 100644
--- a/arch/sh/Kconfig.sh64
+++ b/arch/sh/Kconfig.sh64
@@ -99,21 +99,7 @@ config CPU_SUBTYPE_SH5_103
 
 endchoice
 
-choice
-	prompt "Endianness"
-	default LITTLE_ENDIAN
-
-config LITTLE_ENDIAN
-	bool "Little-Endian"
-
-config BIG_ENDIAN
-	bool "Big-Endian"
-
-endchoice
-
-config SH_FPU
-	bool "FPU support"
-	default y
+source "arch/sh/Kconfig.cpu"
 
 config SH64_FPU_DENORM_FLUSH
 	depends on SH_FPU
-- 
cgit v1.2.3-59-g8ed1b


From 62d6b66edc68f906138df7ba01efd41a45981586 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 9 Nov 2007 14:06:24 +0900
Subject: sh: Move sh32 optimized I/O routines to arch/sh/lib/

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/io.c  | 67 ------------------------------------------
 arch/sh/lib/Makefile |  2 +-
 arch/sh/lib/io.c     | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 83 insertions(+), 68 deletions(-)
 create mode 100644 arch/sh/lib/io.c

(limited to 'arch')

diff --git a/arch/sh/kernel/io.c b/arch/sh/kernel/io.c
index 501fe03e3715..71c9fde2fd90 100644
--- a/arch/sh/kernel/io.c
+++ b/arch/sh/kernel/io.c
@@ -61,73 +61,6 @@ void memset_io(volatile void __iomem *dst, int c, unsigned long count)
 }
 EXPORT_SYMBOL(memset_io);
 
-void __raw_readsl(unsigned long addr, void *datap, int len)
-{
-	u32 *data;
-
-	for (data = datap; (len != 0) && (((u32)data & 0x1f) != 0); len--)
-		*data++ = ctrl_inl(addr);
-
-	if (likely(len >= (0x20 >> 2))) {
-		int tmp2, tmp3, tmp4, tmp5, tmp6;
-
-		__asm__ __volatile__(
-			"1:			\n\t"
-			"mov.l	@%7, r0		\n\t"
-			"mov.l	@%7, %2		\n\t"
-#ifdef CONFIG_CPU_SH4
-			"movca.l r0, @%0	\n\t"
-#else
-			"mov.l	r0, @%0		\n\t"
-#endif
-			"mov.l	@%7, %3		\n\t"
-			"mov.l	@%7, %4		\n\t"
-			"mov.l	@%7, %5		\n\t"
-			"mov.l	@%7, %6		\n\t"
-			"mov.l	@%7, r7		\n\t"
-			"mov.l	@%7, r0		\n\t"
-			"mov.l	%2, @(0x04,%0)	\n\t"
-			"mov	#0x20>>2, %2	\n\t"
-			"mov.l	%3, @(0x08,%0)	\n\t"
-			"sub	%2, %1		\n\t"
-			"mov.l	%4, @(0x0c,%0)	\n\t"
-			"cmp/hi	%1, %2		! T if 32 > len	\n\t"
-			"mov.l	%5, @(0x10,%0)	\n\t"
-			"mov.l	%6, @(0x14,%0)	\n\t"
-			"mov.l	r7, @(0x18,%0)	\n\t"
-			"mov.l	r0, @(0x1c,%0)	\n\t"
-			"bf.s	1b		\n\t"
-			" add	#0x20, %0	\n\t"
-			: "=&r" (data), "=&r" (len),
-			  "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4),
-			  "=&r" (tmp5), "=&r" (tmp6)
-			: "r"(addr), "0" (data), "1" (len)
-			: "r0", "r7", "t", "memory");
-	}
-
-	for (; len != 0; len--)
-		*data++ = ctrl_inl(addr);
-}
-EXPORT_SYMBOL(__raw_readsl);
-
-void __raw_writesl(unsigned long addr, const void *data, int len)
-{
-	if (likely(len != 0)) {
-		int tmp1;
-
-		__asm__ __volatile__ (
-			"1:				\n\t"
-			"mov.l	@%0+, %1	\n\t"
-			"dt		%3		\n\t"
-			"bf.s		1b		\n\t"
-			" mov.l	%1, @%4		\n\t"
-			: "=&r" (data), "=&r" (tmp1)
-			: "0" (data), "r" (len), "r"(addr)
-			: "t", "memory");
-	}
-}
-EXPORT_SYMBOL(__raw_writesl);
-
 void __iomem *ioport_map(unsigned long port, unsigned int nr)
 {
 	return sh_mv.mv_ioport_map(port, nr);
diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile
index 9dc7b6985052..6f7ac9eeb54f 100644
--- a/arch/sh/lib/Makefile
+++ b/arch/sh/lib/Makefile
@@ -2,7 +2,7 @@
 # Makefile for SuperH-specific library files..
 #
 
-lib-y  = delay.o memset.o memmove.o memchr.o \
+lib-y  = delay.o io.o memset.o memmove.o memchr.o \
 	 checksum.o strlen.o div64.o div64-generic.o
 
 memcpy-y			:= memcpy.o
diff --git a/arch/sh/lib/io.c b/arch/sh/lib/io.c
new file mode 100644
index 000000000000..4f54ec43516f
--- /dev/null
+++ b/arch/sh/lib/io.c
@@ -0,0 +1,82 @@
+/*
+ * arch/sh/lib/io.c - SH32 optimized I/O routines
+ *
+ * Copyright (C) 2000  Stuart Menefy
+ * Copyright (C) 2005  Paul Mundt
+ *
+ * Provide real functions which expand to whatever the header file defined.
+ * Also definitions of machine independent IO functions.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/module.h>
+#include <linux/io.h>
+
+void __raw_readsl(unsigned long addr, void *datap, int len)
+{
+	u32 *data;
+
+	for (data = datap; (len != 0) && (((u32)data & 0x1f) != 0); len--)
+		*data++ = ctrl_inl(addr);
+
+	if (likely(len >= (0x20 >> 2))) {
+		int tmp2, tmp3, tmp4, tmp5, tmp6;
+
+		__asm__ __volatile__(
+			"1:			\n\t"
+			"mov.l	@%7, r0		\n\t"
+			"mov.l	@%7, %2		\n\t"
+#ifdef CONFIG_CPU_SH4
+			"movca.l r0, @%0	\n\t"
+#else
+			"mov.l	r0, @%0		\n\t"
+#endif
+			"mov.l	@%7, %3		\n\t"
+			"mov.l	@%7, %4		\n\t"
+			"mov.l	@%7, %5		\n\t"
+			"mov.l	@%7, %6		\n\t"
+			"mov.l	@%7, r7		\n\t"
+			"mov.l	@%7, r0		\n\t"
+			"mov.l	%2, @(0x04,%0)	\n\t"
+			"mov	#0x20>>2, %2	\n\t"
+			"mov.l	%3, @(0x08,%0)	\n\t"
+			"sub	%2, %1		\n\t"
+			"mov.l	%4, @(0x0c,%0)	\n\t"
+			"cmp/hi	%1, %2		! T if 32 > len	\n\t"
+			"mov.l	%5, @(0x10,%0)	\n\t"
+			"mov.l	%6, @(0x14,%0)	\n\t"
+			"mov.l	r7, @(0x18,%0)	\n\t"
+			"mov.l	r0, @(0x1c,%0)	\n\t"
+			"bf.s	1b		\n\t"
+			" add	#0x20, %0	\n\t"
+			: "=&r" (data), "=&r" (len),
+			  "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4),
+			  "=&r" (tmp5), "=&r" (tmp6)
+			: "r"(addr), "0" (data), "1" (len)
+			: "r0", "r7", "t", "memory");
+	}
+
+	for (; len != 0; len--)
+		*data++ = ctrl_inl(addr);
+}
+EXPORT_SYMBOL(__raw_readsl);
+
+void __raw_writesl(unsigned long addr, const void *data, int len)
+{
+	if (likely(len != 0)) {
+		int tmp1;
+
+		__asm__ __volatile__ (
+			"1:				\n\t"
+			"mov.l	@%0+, %1	\n\t"
+			"dt		%3		\n\t"
+			"bf.s		1b		\n\t"
+			" mov.l	%1, @%4		\n\t"
+			: "=&r" (data), "=&r" (tmp1)
+			: "0" (data), "r" (len), "r"(addr)
+			: "t", "memory");
+	}
+}
+EXPORT_SYMBOL(__raw_writesl);
-- 
cgit v1.2.3-59-g8ed1b


From 9085fa1255fc16bf0dbd217e9f4cdccf16f064d3 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 9 Nov 2007 14:07:56 +0900
Subject: sh: Kill off lib64 version of io.c.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/lib64/Makefile |  16 +++----
 arch/sh/lib64/io.c     | 128 -------------------------------------------------
 2 files changed, 6 insertions(+), 138 deletions(-)
 delete mode 100644 arch/sh/lib64/io.c

(limited to 'arch')

diff --git a/arch/sh/lib64/Makefile b/arch/sh/lib64/Makefile
index 6a4cc3f9c0b1..c8c7cf4e8b48 100644
--- a/arch/sh/lib64/Makefile
+++ b/arch/sh/lib64/Makefile
@@ -1,19 +1,15 @@
 #
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
+# Makefile for the SH-5 specific library files..
 #
 # Copyright (C) 2000, 2001  Paolo Alberelli
-# Coprygith (C) 2003  Paul Mundt
+# Copyright (C) 2003  Paul Mundt
 #
-# Makefile for the SH-5 specific library files..
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
 #
 
 # Panic should really be compiled as PIC
-lib-y  := udelay.o c-checksum.o dbg.o io.o panic.o memcpy.o copy_user_memcpy.o \
+lib-y  := udelay.o c-checksum.o dbg.o panic.o memcpy.o copy_user_memcpy.o \
 		page_copy.o page_clear.o iomap.o
 
diff --git a/arch/sh/lib64/io.c b/arch/sh/lib64/io.c
deleted file mode 100644
index a3f3a2b8e25b..000000000000
--- a/arch/sh/lib64/io.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * Copyright (C) 2000 David J. Mckay (david.mckay@st.com)
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.
- *
- * This file contains the I/O routines for use on the overdrive board
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-
-/*  Now for the string version of these functions */
-void outsb(unsigned long port, const void *addr, unsigned long count)
-{
-	int i;
-	unsigned char *p = (unsigned char *) addr;
-
-	for (i = 0; i < count; i++, p++) {
-		outb(*p, port);
-	}
-}
-EXPORT_SYMBOL(outsb);
-
-void insb(unsigned long port, void *addr, unsigned long count)
-{
-	int i;
-	unsigned char *p = (unsigned char *) addr;
-
-	for (i = 0; i < count; i++, p++) {
-		*p = inb(port);
-	}
-}
-EXPORT_SYMBOL(insb);
-
-/* For the 16 and 32 bit string functions, we have to worry about alignment.
- * The SH does not do unaligned accesses, so we have to read as bytes and
- * then write as a word or dword.
- * This can be optimised a lot more, especially in the case where the data
- * is aligned
- */
-
-void outsw(unsigned long port, const void *addr, unsigned long count)
-{
-	int i;
-	unsigned short tmp;
-	unsigned char *p = (unsigned char *) addr;
-
-	for (i = 0; i < count; i++, p += 2) {
-		tmp = (*p) | ((*(p + 1)) << 8);
-		outw(tmp, port);
-	}
-}
-EXPORT_SYMBOL(outsw);
-
-void insw(unsigned long port, void *addr, unsigned long count)
-{
-	int i;
-	unsigned short tmp;
-	unsigned char *p = (unsigned char *) addr;
-
-	for (i = 0; i < count; i++, p += 2) {
-		tmp = inw(port);
-		p[0] = tmp & 0xff;
-		p[1] = (tmp >> 8) & 0xff;
-	}
-}
-EXPORT_SYMBOL(insw);
-
-void outsl(unsigned long port, const void *addr, unsigned long count)
-{
-	int i;
-	unsigned tmp;
-	unsigned char *p = (unsigned char *) addr;
-
-	for (i = 0; i < count; i++, p += 4) {
-		tmp = (*p) | ((*(p + 1)) << 8) | ((*(p + 2)) << 16) |
-		    ((*(p + 3)) << 24);
-		outl(tmp, port);
-	}
-}
-EXPORT_SYMBOL(outsl);
-
-void insl(unsigned long port, void *addr, unsigned long count)
-{
-	int i;
-	unsigned tmp;
-	unsigned char *p = (unsigned char *) addr;
-
-	for (i = 0; i < count; i++, p += 4) {
-		tmp = inl(port);
-		p[0] = tmp & 0xff;
-		p[1] = (tmp >> 8) & 0xff;
-		p[2] = (tmp >> 16) & 0xff;
-		p[3] = (tmp >> 24) & 0xff;
-
-	}
-}
-EXPORT_SYMBOL(insl);
-
-void memcpy_toio(void __iomem *to, const void *from, long count)
-{
-	unsigned char *p = (unsigned char *) from;
-
-	while (count) {
-		count--;
-		writeb(*p++, to++);
-	}
-}
-EXPORT_SYMBOL(memcpy_toio);
-
-void memcpy_fromio(void *to, void __iomem *from, long count)
-{
-	int i;
-	unsigned char *p = (unsigned char *) to;
-
-	for (i = 0; i < count; i++) {
-		p[i] = readb(from);
-		from++;
-	}
-}
-EXPORT_SYMBOL(memcpy_fromio);
-- 
cgit v1.2.3-59-g8ed1b


From 5055235554804b39c613ada76d7598c14265a00b Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 9 Nov 2007 16:40:43 +0900
Subject: sh: Have 32-bit use arch/sh/kernel/Makefile_32.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile    | 30 +++++-------------------------
 arch/sh/kernel/Makefile_32 | 25 +++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 25 deletions(-)
 create mode 100644 arch/sh/kernel/Makefile_32

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index 4b81d9c47b00..349d833deab5 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -1,25 +1,5 @@
-#
-# Makefile for the Linux/SuperH kernel.
-#
-
-extra-y	:= head.o init_task.o vmlinux.lds
-
-obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process.o ptrace.o \
-	   semaphore.o setup.o signal.o sys_sh.o syscalls.o \
-	   time.o topology.o traps.o
-
-obj-y				+= cpu/ timers/
-obj-$(CONFIG_VSYSCALL)		+= vsyscall/
-obj-$(CONFIG_SMP)		+= smp.o
-obj-$(CONFIG_CF_ENABLER)	+= cf-enabler.o
-obj-$(CONFIG_SH_STANDARD_BIOS)	+= sh_bios.o
-obj-$(CONFIG_SH_KGDB)		+= kgdb_stub.o kgdb_jmp.o
-obj-$(CONFIG_SH_CPU_FREQ)	+= cpufreq.o
-obj-$(CONFIG_MODULES)		+= sh_ksyms.o module.o
-obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
-obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
-obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
-obj-$(CONFIG_PM)		+= pm.o
-obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
-
-EXTRA_CFLAGS += -Werror
+ifeq ($(CONFIG_SUPERH32),y)
+include ${srctree}/arch/sh/kernel/Makefile_32
+else
+include ${srctree}/arch/sh/kernel/Makefile_64
+endif
diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
new file mode 100644
index 000000000000..4b81d9c47b00
--- /dev/null
+++ b/arch/sh/kernel/Makefile_32
@@ -0,0 +1,25 @@
+#
+# Makefile for the Linux/SuperH kernel.
+#
+
+extra-y	:= head.o init_task.o vmlinux.lds
+
+obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process.o ptrace.o \
+	   semaphore.o setup.o signal.o sys_sh.o syscalls.o \
+	   time.o topology.o traps.o
+
+obj-y				+= cpu/ timers/
+obj-$(CONFIG_VSYSCALL)		+= vsyscall/
+obj-$(CONFIG_SMP)		+= smp.o
+obj-$(CONFIG_CF_ENABLER)	+= cf-enabler.o
+obj-$(CONFIG_SH_STANDARD_BIOS)	+= sh_bios.o
+obj-$(CONFIG_SH_KGDB)		+= kgdb_stub.o kgdb_jmp.o
+obj-$(CONFIG_SH_CPU_FREQ)	+= cpufreq.o
+obj-$(CONFIG_MODULES)		+= sh_ksyms.o module.o
+obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
+obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
+obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
+obj-$(CONFIG_PM)		+= pm.o
+obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
+
+EXTRA_CFLAGS += -Werror
-- 
cgit v1.2.3-59-g8ed1b


From fe51bc9eaf45253bd437907ed04031a93640ca69 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 9 Nov 2007 16:57:04 +0900
Subject: sh: Split out arch/sh/kernel/process.c for _32 and _64 variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile_32  |   4 +-
 arch/sh/kernel/process.c    | 558 -----------------------------------
 arch/sh/kernel/process_32.c | 558 +++++++++++++++++++++++++++++++++++
 arch/sh/kernel/process_64.c | 691 ++++++++++++++++++++++++++++++++++++++++++++
 arch/sh64/kernel/process.c  | 691 --------------------------------------------
 5 files changed, 1251 insertions(+), 1251 deletions(-)
 delete mode 100644 arch/sh/kernel/process.c
 create mode 100644 arch/sh/kernel/process_32.c
 create mode 100644 arch/sh/kernel/process_64.c
 delete mode 100644 arch/sh64/kernel/process.c

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index 4b81d9c47b00..9864be64b226 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/arch/sh/kernel/Makefile_32
@@ -4,8 +4,8 @@
 
 extra-y	:= head.o init_task.o vmlinux.lds
 
-obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process.o ptrace.o \
-	   semaphore.o setup.o signal.o sys_sh.o syscalls.o \
+obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_32.o \
+	   ptrace.o semaphore.o setup.o signal.o sys_sh.o syscalls.o \
 	   time.o topology.o traps.o
 
 obj-y				+= cpu/ timers/
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
deleted file mode 100644
index 6d7f2b07e491..000000000000
--- a/arch/sh/kernel/process.c
+++ /dev/null
@@ -1,558 +0,0 @@
-/*
- * arch/sh/kernel/process.c
- *
- * This file handles the architecture-dependent parts of process handling..
- *
- *  Copyright (C) 1995  Linus Torvalds
- *
- *  SuperH version:  Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima
- *		     Copyright (C) 2006 Lineo Solutions Inc. support SH4A UBC
- *		     Copyright (C) 2002 - 2007  Paul Mundt
- */
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/elfcore.h>
-#include <linux/pm.h>
-#include <linux/kallsyms.h>
-#include <linux/kexec.h>
-#include <linux/kdebug.h>
-#include <linux/tick.h>
-#include <linux/reboot.h>
-#include <linux/fs.h>
-#include <linux/preempt.h>
-#include <asm/uaccess.h>
-#include <asm/mmu_context.h>
-#include <asm/pgalloc.h>
-#include <asm/system.h>
-#include <asm/ubc.h>
-
-static int hlt_counter;
-int ubc_usercnt = 0;
-
-void (*pm_idle)(void);
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
-void disable_hlt(void)
-{
-	hlt_counter++;
-}
-EXPORT_SYMBOL(disable_hlt);
-
-void enable_hlt(void)
-{
-	hlt_counter--;
-}
-EXPORT_SYMBOL(enable_hlt);
-
-static int __init nohlt_setup(char *__unused)
-{
-	hlt_counter = 1;
-	return 1;
-}
-__setup("nohlt", nohlt_setup);
-
-static int __init hlt_setup(char *__unused)
-{
-	hlt_counter = 0;
-	return 1;
-}
-__setup("hlt", hlt_setup);
-
-void default_idle(void)
-{
-	if (!hlt_counter) {
-		clear_thread_flag(TIF_POLLING_NRFLAG);
-		smp_mb__after_clear_bit();
-		set_bl_bit();
-		while (!need_resched())
-			cpu_sleep();
-		clear_bl_bit();
-		set_thread_flag(TIF_POLLING_NRFLAG);
-	} else
-		while (!need_resched())
-			cpu_relax();
-}
-
-void cpu_idle(void)
-{
-	set_thread_flag(TIF_POLLING_NRFLAG);
-
-	/* endless idle loop with no priority at all */
-	while (1) {
-		void (*idle)(void) = pm_idle;
-
-		if (!idle)
-			idle = default_idle;
-
-		tick_nohz_stop_sched_tick();
-		while (!need_resched())
-			idle();
-		tick_nohz_restart_sched_tick();
-
-		preempt_enable_no_resched();
-		schedule();
-		preempt_disable();
-		check_pgt_cache();
-	}
-}
-
-void machine_restart(char * __unused)
-{
-	/* SR.BL=1 and invoke address error to let CPU reset (manual reset) */
-	asm volatile("ldc %0, sr\n\t"
-		     "mov.l @%1, %0" : : "r" (0x10000000), "r" (0x80000001));
-}
-
-void machine_halt(void)
-{
-	local_irq_disable();
-
-	while (1)
-		cpu_sleep();
-}
-
-void machine_power_off(void)
-{
-	if (pm_power_off)
-		pm_power_off();
-}
-
-void show_regs(struct pt_regs * regs)
-{
-	printk("\n");
-	printk("Pid : %d, Comm: %20s\n", task_pid_nr(current), current->comm);
-	print_symbol("PC is at %s\n", instruction_pointer(regs));
-	printk("PC  : %08lx SP  : %08lx SR  : %08lx ",
-	       regs->pc, regs->regs[15], regs->sr);
-#ifdef CONFIG_MMU
-	printk("TEA : %08x    ", ctrl_inl(MMU_TEA));
-#else
-	printk("                  ");
-#endif
-	printk("%s\n", print_tainted());
-
-	printk("R0  : %08lx R1  : %08lx R2  : %08lx R3  : %08lx\n",
-	       regs->regs[0],regs->regs[1],
-	       regs->regs[2],regs->regs[3]);
-	printk("R4  : %08lx R5  : %08lx R6  : %08lx R7  : %08lx\n",
-	       regs->regs[4],regs->regs[5],
-	       regs->regs[6],regs->regs[7]);
-	printk("R8  : %08lx R9  : %08lx R10 : %08lx R11 : %08lx\n",
-	       regs->regs[8],regs->regs[9],
-	       regs->regs[10],regs->regs[11]);
-	printk("R12 : %08lx R13 : %08lx R14 : %08lx\n",
-	       regs->regs[12],regs->regs[13],
-	       regs->regs[14]);
-	printk("MACH: %08lx MACL: %08lx GBR : %08lx PR  : %08lx\n",
-	       regs->mach, regs->macl, regs->gbr, regs->pr);
-
-	show_trace(NULL, (unsigned long *)regs->regs[15], regs);
-}
-
-/*
- * Create a kernel thread
- */
-
-/*
- * This is the mechanism for creating a new kernel thread.
- *
- */
-extern void kernel_thread_helper(void);
-__asm__(".align 5\n"
-	"kernel_thread_helper:\n\t"
-	"jsr	@r5\n\t"
-	" nop\n\t"
-	"mov.l	1f, r1\n\t"
-	"jsr	@r1\n\t"
-	" mov	r0, r4\n\t"
-	".align 2\n\t"
-	"1:.long do_exit");
-
-/* Don't use this in BL=1(cli).  Or else, CPU resets! */
-int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
-{
-	struct pt_regs regs;
-
-	memset(&regs, 0, sizeof(regs));
-	regs.regs[4] = (unsigned long)arg;
-	regs.regs[5] = (unsigned long)fn;
-
-	regs.pc = (unsigned long)kernel_thread_helper;
-	regs.sr = (1 << 30);
-
-	/* Ok, create the new process.. */
-	return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
-		       &regs, 0, NULL, NULL);
-}
-
-/*
- * Free current thread data structures etc..
- */
-void exit_thread(void)
-{
-	if (current->thread.ubc_pc) {
-		current->thread.ubc_pc = 0;
-		ubc_usercnt -= 1;
-	}
-}
-
-void flush_thread(void)
-{
-#if defined(CONFIG_SH_FPU)
-	struct task_struct *tsk = current;
-	/* Forget lazy FPU state */
-	clear_fpu(tsk, task_pt_regs(tsk));
-	clear_used_math();
-#endif
-}
-
-void release_thread(struct task_struct *dead_task)
-{
-	/* do nothing */
-}
-
-/* Fill in the fpu structure for a core dump.. */
-int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
-{
-	int fpvalid = 0;
-
-#if defined(CONFIG_SH_FPU)
-	struct task_struct *tsk = current;
-
-	fpvalid = !!tsk_used_math(tsk);
-	if (fpvalid) {
-		unlazy_fpu(tsk, regs);
-		memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
-	}
-#endif
-
-	return fpvalid;
-}
-
-/*
- * Capture the user space registers if the task is not running (in user space)
- */
-int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
-{
-	struct pt_regs ptregs;
-
-	ptregs = *task_pt_regs(tsk);
-	elf_core_copy_regs(regs, &ptregs);
-
-	return 1;
-}
-
-int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpu)
-{
-	int fpvalid = 0;
-
-#if defined(CONFIG_SH_FPU)
-	fpvalid = !!tsk_used_math(tsk);
-	if (fpvalid) {
-		unlazy_fpu(tsk, task_pt_regs(tsk));
-		memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
-	}
-#endif
-
-	return fpvalid;
-}
-
-asmlinkage void ret_from_fork(void);
-
-int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
-		unsigned long unused,
-		struct task_struct *p, struct pt_regs *regs)
-{
-	struct thread_info *ti = task_thread_info(p);
-	struct pt_regs *childregs;
-#if defined(CONFIG_SH_FPU)
-	struct task_struct *tsk = current;
-
-	unlazy_fpu(tsk, regs);
-	p->thread.fpu = tsk->thread.fpu;
-	copy_to_stopped_child_used_math(p);
-#endif
-
-	childregs = task_pt_regs(p);
-	*childregs = *regs;
-
-	if (user_mode(regs)) {
-		childregs->regs[15] = usp;
-		ti->addr_limit = USER_DS;
-	} else {
-		childregs->regs[15] = (unsigned long)childregs;
-		ti->addr_limit = KERNEL_DS;
-	}
-
-	if (clone_flags & CLONE_SETTLS)
-		childregs->gbr = childregs->regs[0];
-
-	childregs->regs[0] = 0; /* Set return value for child */
-
-	p->thread.sp = (unsigned long) childregs;
-	p->thread.pc = (unsigned long) ret_from_fork;
-
-	p->thread.ubc_pc = 0;
-
-	return 0;
-}
-
-/* Tracing by user break controller.  */
-static void ubc_set_tracing(int asid, unsigned long pc)
-{
-#if defined(CONFIG_CPU_SH4A)
-	unsigned long val;
-
-	val = (UBC_CBR_ID_INST | UBC_CBR_RW_READ | UBC_CBR_CE);
-	val |= (UBC_CBR_AIE | UBC_CBR_AIV_SET(asid));
-
-	ctrl_outl(val, UBC_CBR0);
-	ctrl_outl(pc,  UBC_CAR0);
-	ctrl_outl(0x0, UBC_CAMR0);
-	ctrl_outl(0x0, UBC_CBCR);
-
-	val = (UBC_CRR_RES | UBC_CRR_PCB | UBC_CRR_BIE);
-	ctrl_outl(val, UBC_CRR0);
-
-	/* Read UBC register that we wrote last, for checking update */
-	val = ctrl_inl(UBC_CRR0);
-
-#else	/* CONFIG_CPU_SH4A */
-	ctrl_outl(pc, UBC_BARA);
-
-#ifdef CONFIG_MMU
-	ctrl_outb(asid, UBC_BASRA);
-#endif
-
-	ctrl_outl(0, UBC_BAMRA);
-
-	if (current_cpu_data.type == CPU_SH7729 ||
-	    current_cpu_data.type == CPU_SH7710 ||
-	    current_cpu_data.type == CPU_SH7712) {
-		ctrl_outw(BBR_INST | BBR_READ | BBR_CPU, UBC_BBRA);
-		ctrl_outl(BRCR_PCBA | BRCR_PCTE, UBC_BRCR);
-	} else {
-		ctrl_outw(BBR_INST | BBR_READ, UBC_BBRA);
-		ctrl_outw(BRCR_PCBA, UBC_BRCR);
-	}
-#endif	/* CONFIG_CPU_SH4A */
-}
-
-/*
- *	switch_to(x,y) should switch tasks from x to y.
- *
- */
-struct task_struct *__switch_to(struct task_struct *prev,
-				struct task_struct *next)
-{
-#if defined(CONFIG_SH_FPU)
-	unlazy_fpu(prev, task_pt_regs(prev));
-#endif
-
-#if defined(CONFIG_GUSA) && defined(CONFIG_PREEMPT)
-	{
-		struct pt_regs *regs;
-
-		preempt_disable();
-		regs = task_pt_regs(prev);
-		if (user_mode(regs) && regs->regs[15] >= 0xc0000000) {
-			int offset = (int)regs->regs[15];
-
-			/* Reset stack pointer: clear critical region mark */
-			regs->regs[15] = regs->regs[1];
-			if (regs->pc < regs->regs[0])
-				/* Go to rewind point */
-				regs->pc = regs->regs[0] + offset;
-		}
-		preempt_enable_no_resched();
-	}
-#endif
-
-#ifdef CONFIG_MMU
-	/*
-	 * Restore the kernel mode register
-	 *	k7 (r7_bank1)
-	 */
-	asm volatile("ldc	%0, r7_bank"
-		     : /* no output */
-		     : "r" (task_thread_info(next)));
-#endif
-
-	/* If no tasks are using the UBC, we're done */
-	if (ubc_usercnt == 0)
-		/* If no tasks are using the UBC, we're done */;
-	else if (next->thread.ubc_pc && next->mm) {
-		int asid = 0;
-#ifdef CONFIG_MMU
-		asid |= cpu_asid(smp_processor_id(), next->mm);
-#endif
-		ubc_set_tracing(asid, next->thread.ubc_pc);
-	} else {
-#if defined(CONFIG_CPU_SH4A)
-		ctrl_outl(UBC_CBR_INIT, UBC_CBR0);
-		ctrl_outl(UBC_CRR_INIT, UBC_CRR0);
-#else
-		ctrl_outw(0, UBC_BBRA);
-		ctrl_outw(0, UBC_BBRB);
-#endif
-	}
-
-	return prev;
-}
-
-asmlinkage int sys_fork(unsigned long r4, unsigned long r5,
-			unsigned long r6, unsigned long r7,
-			struct pt_regs __regs)
-{
-#ifdef CONFIG_MMU
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-	return do_fork(SIGCHLD, regs->regs[15], regs, 0, NULL, NULL);
-#else
-	/* fork almost works, enough to trick you into looking elsewhere :-( */
-	return -EINVAL;
-#endif
-}
-
-asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
-			 unsigned long parent_tidptr,
-			 unsigned long child_tidptr,
-			 struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-	if (!newsp)
-		newsp = regs->regs[15];
-	return do_fork(clone_flags, newsp, regs, 0,
-			(int __user *)parent_tidptr,
-			(int __user *)child_tidptr);
-}
-
-/*
- * This is trivial, and on the face of it looks like it
- * could equally well be done in user mode.
- *
- * Not so, for quite unobvious reasons - register pressure.
- * In user mode vfork() cannot have a stack frame, and if
- * done by calling the "clone()" system call directly, you
- * do not have enough call-clobbered registers to hold all
- * the information you need.
- */
-asmlinkage int sys_vfork(unsigned long r4, unsigned long r5,
-			 unsigned long r6, unsigned long r7,
-			 struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->regs[15], regs,
-		       0, NULL, NULL);
-}
-
-/*
- * sys_execve() executes a new program.
- */
-asmlinkage int sys_execve(char __user *ufilename, char __user * __user *uargv,
-			  char __user * __user *uenvp, unsigned long r7,
-			  struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-	int error;
-	char *filename;
-
-	filename = getname(ufilename);
-	error = PTR_ERR(filename);
-	if (IS_ERR(filename))
-		goto out;
-
-	error = do_execve(filename, uargv, uenvp, regs);
-	if (error == 0) {
-		task_lock(current);
-		current->ptrace &= ~PT_DTRACE;
-		task_unlock(current);
-	}
-	putname(filename);
-out:
-	return error;
-}
-
-unsigned long get_wchan(struct task_struct *p)
-{
-	unsigned long pc;
-
-	if (!p || p == current || p->state == TASK_RUNNING)
-		return 0;
-
-	/*
-	 * The same comment as on the Alpha applies here, too ...
-	 */
-	pc = thread_saved_pc(p);
-
-#ifdef CONFIG_FRAME_POINTER
-	if (in_sched_functions(pc)) {
-		unsigned long schedule_frame = (unsigned long)p->thread.sp;
-		return ((unsigned long *)schedule_frame)[21];
-	}
-#endif
-
-	return pc;
-}
-
-asmlinkage void break_point_trap(void)
-{
-	/* Clear tracing.  */
-#if defined(CONFIG_CPU_SH4A)
-	ctrl_outl(UBC_CBR_INIT, UBC_CBR0);
-	ctrl_outl(UBC_CRR_INIT, UBC_CRR0);
-#else
-	ctrl_outw(0, UBC_BBRA);
-	ctrl_outw(0, UBC_BBRB);
-#endif
-	current->thread.ubc_pc = 0;
-	ubc_usercnt -= 1;
-
-	force_sig(SIGTRAP, current);
-}
-
-/*
- * Generic trap handler.
- */
-asmlinkage void debug_trap_handler(unsigned long r4, unsigned long r5,
-				   unsigned long r6, unsigned long r7,
-				   struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-
-	/* Rewind */
-	regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
-
-	if (notify_die(DIE_TRAP, "debug trap", regs, 0, regs->tra & 0xff,
-		       SIGTRAP) == NOTIFY_STOP)
-		return;
-
-	force_sig(SIGTRAP, current);
-}
-
-/*
- * Special handler for BUG() traps.
- */
-asmlinkage void bug_trap_handler(unsigned long r4, unsigned long r5,
-				 unsigned long r6, unsigned long r7,
-				 struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-
-	/* Rewind */
-	regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
-
-	if (notify_die(DIE_TRAP, "bug trap", regs, 0, TRAPA_BUG_OPCODE & 0xff,
-		       SIGTRAP) == NOTIFY_STOP)
-		return;
-
-#ifdef CONFIG_BUG
-	if (__kernel_text_address(instruction_pointer(regs))) {
-		u16 insn = *(u16 *)instruction_pointer(regs);
-		if (insn == TRAPA_BUG_OPCODE)
-			handle_BUG(regs);
-	}
-#endif
-
-	force_sig(SIGTRAP, current);
-}
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
new file mode 100644
index 000000000000..6d7f2b07e491
--- /dev/null
+++ b/arch/sh/kernel/process_32.c
@@ -0,0 +1,558 @@
+/*
+ * arch/sh/kernel/process.c
+ *
+ * This file handles the architecture-dependent parts of process handling..
+ *
+ *  Copyright (C) 1995  Linus Torvalds
+ *
+ *  SuperH version:  Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima
+ *		     Copyright (C) 2006 Lineo Solutions Inc. support SH4A UBC
+ *		     Copyright (C) 2002 - 2007  Paul Mundt
+ */
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/elfcore.h>
+#include <linux/pm.h>
+#include <linux/kallsyms.h>
+#include <linux/kexec.h>
+#include <linux/kdebug.h>
+#include <linux/tick.h>
+#include <linux/reboot.h>
+#include <linux/fs.h>
+#include <linux/preempt.h>
+#include <asm/uaccess.h>
+#include <asm/mmu_context.h>
+#include <asm/pgalloc.h>
+#include <asm/system.h>
+#include <asm/ubc.h>
+
+static int hlt_counter;
+int ubc_usercnt = 0;
+
+void (*pm_idle)(void);
+void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
+
+void disable_hlt(void)
+{
+	hlt_counter++;
+}
+EXPORT_SYMBOL(disable_hlt);
+
+void enable_hlt(void)
+{
+	hlt_counter--;
+}
+EXPORT_SYMBOL(enable_hlt);
+
+static int __init nohlt_setup(char *__unused)
+{
+	hlt_counter = 1;
+	return 1;
+}
+__setup("nohlt", nohlt_setup);
+
+static int __init hlt_setup(char *__unused)
+{
+	hlt_counter = 0;
+	return 1;
+}
+__setup("hlt", hlt_setup);
+
+void default_idle(void)
+{
+	if (!hlt_counter) {
+		clear_thread_flag(TIF_POLLING_NRFLAG);
+		smp_mb__after_clear_bit();
+		set_bl_bit();
+		while (!need_resched())
+			cpu_sleep();
+		clear_bl_bit();
+		set_thread_flag(TIF_POLLING_NRFLAG);
+	} else
+		while (!need_resched())
+			cpu_relax();
+}
+
+void cpu_idle(void)
+{
+	set_thread_flag(TIF_POLLING_NRFLAG);
+
+	/* endless idle loop with no priority at all */
+	while (1) {
+		void (*idle)(void) = pm_idle;
+
+		if (!idle)
+			idle = default_idle;
+
+		tick_nohz_stop_sched_tick();
+		while (!need_resched())
+			idle();
+		tick_nohz_restart_sched_tick();
+
+		preempt_enable_no_resched();
+		schedule();
+		preempt_disable();
+		check_pgt_cache();
+	}
+}
+
+void machine_restart(char * __unused)
+{
+	/* SR.BL=1 and invoke address error to let CPU reset (manual reset) */
+	asm volatile("ldc %0, sr\n\t"
+		     "mov.l @%1, %0" : : "r" (0x10000000), "r" (0x80000001));
+}
+
+void machine_halt(void)
+{
+	local_irq_disable();
+
+	while (1)
+		cpu_sleep();
+}
+
+void machine_power_off(void)
+{
+	if (pm_power_off)
+		pm_power_off();
+}
+
+void show_regs(struct pt_regs * regs)
+{
+	printk("\n");
+	printk("Pid : %d, Comm: %20s\n", task_pid_nr(current), current->comm);
+	print_symbol("PC is at %s\n", instruction_pointer(regs));
+	printk("PC  : %08lx SP  : %08lx SR  : %08lx ",
+	       regs->pc, regs->regs[15], regs->sr);
+#ifdef CONFIG_MMU
+	printk("TEA : %08x    ", ctrl_inl(MMU_TEA));
+#else
+	printk("                  ");
+#endif
+	printk("%s\n", print_tainted());
+
+	printk("R0  : %08lx R1  : %08lx R2  : %08lx R3  : %08lx\n",
+	       regs->regs[0],regs->regs[1],
+	       regs->regs[2],regs->regs[3]);
+	printk("R4  : %08lx R5  : %08lx R6  : %08lx R7  : %08lx\n",
+	       regs->regs[4],regs->regs[5],
+	       regs->regs[6],regs->regs[7]);
+	printk("R8  : %08lx R9  : %08lx R10 : %08lx R11 : %08lx\n",
+	       regs->regs[8],regs->regs[9],
+	       regs->regs[10],regs->regs[11]);
+	printk("R12 : %08lx R13 : %08lx R14 : %08lx\n",
+	       regs->regs[12],regs->regs[13],
+	       regs->regs[14]);
+	printk("MACH: %08lx MACL: %08lx GBR : %08lx PR  : %08lx\n",
+	       regs->mach, regs->macl, regs->gbr, regs->pr);
+
+	show_trace(NULL, (unsigned long *)regs->regs[15], regs);
+}
+
+/*
+ * Create a kernel thread
+ */
+
+/*
+ * This is the mechanism for creating a new kernel thread.
+ *
+ */
+extern void kernel_thread_helper(void);
+__asm__(".align 5\n"
+	"kernel_thread_helper:\n\t"
+	"jsr	@r5\n\t"
+	" nop\n\t"
+	"mov.l	1f, r1\n\t"
+	"jsr	@r1\n\t"
+	" mov	r0, r4\n\t"
+	".align 2\n\t"
+	"1:.long do_exit");
+
+/* Don't use this in BL=1(cli).  Or else, CPU resets! */
+int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
+{
+	struct pt_regs regs;
+
+	memset(&regs, 0, sizeof(regs));
+	regs.regs[4] = (unsigned long)arg;
+	regs.regs[5] = (unsigned long)fn;
+
+	regs.pc = (unsigned long)kernel_thread_helper;
+	regs.sr = (1 << 30);
+
+	/* Ok, create the new process.. */
+	return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
+		       &regs, 0, NULL, NULL);
+}
+
+/*
+ * Free current thread data structures etc..
+ */
+void exit_thread(void)
+{
+	if (current->thread.ubc_pc) {
+		current->thread.ubc_pc = 0;
+		ubc_usercnt -= 1;
+	}
+}
+
+void flush_thread(void)
+{
+#if defined(CONFIG_SH_FPU)
+	struct task_struct *tsk = current;
+	/* Forget lazy FPU state */
+	clear_fpu(tsk, task_pt_regs(tsk));
+	clear_used_math();
+#endif
+}
+
+void release_thread(struct task_struct *dead_task)
+{
+	/* do nothing */
+}
+
+/* Fill in the fpu structure for a core dump.. */
+int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
+{
+	int fpvalid = 0;
+
+#if defined(CONFIG_SH_FPU)
+	struct task_struct *tsk = current;
+
+	fpvalid = !!tsk_used_math(tsk);
+	if (fpvalid) {
+		unlazy_fpu(tsk, regs);
+		memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
+	}
+#endif
+
+	return fpvalid;
+}
+
+/*
+ * Capture the user space registers if the task is not running (in user space)
+ */
+int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
+{
+	struct pt_regs ptregs;
+
+	ptregs = *task_pt_regs(tsk);
+	elf_core_copy_regs(regs, &ptregs);
+
+	return 1;
+}
+
+int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpu)
+{
+	int fpvalid = 0;
+
+#if defined(CONFIG_SH_FPU)
+	fpvalid = !!tsk_used_math(tsk);
+	if (fpvalid) {
+		unlazy_fpu(tsk, task_pt_regs(tsk));
+		memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
+	}
+#endif
+
+	return fpvalid;
+}
+
+asmlinkage void ret_from_fork(void);
+
+int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+		unsigned long unused,
+		struct task_struct *p, struct pt_regs *regs)
+{
+	struct thread_info *ti = task_thread_info(p);
+	struct pt_regs *childregs;
+#if defined(CONFIG_SH_FPU)
+	struct task_struct *tsk = current;
+
+	unlazy_fpu(tsk, regs);
+	p->thread.fpu = tsk->thread.fpu;
+	copy_to_stopped_child_used_math(p);
+#endif
+
+	childregs = task_pt_regs(p);
+	*childregs = *regs;
+
+	if (user_mode(regs)) {
+		childregs->regs[15] = usp;
+		ti->addr_limit = USER_DS;
+	} else {
+		childregs->regs[15] = (unsigned long)childregs;
+		ti->addr_limit = KERNEL_DS;
+	}
+
+	if (clone_flags & CLONE_SETTLS)
+		childregs->gbr = childregs->regs[0];
+
+	childregs->regs[0] = 0; /* Set return value for child */
+
+	p->thread.sp = (unsigned long) childregs;
+	p->thread.pc = (unsigned long) ret_from_fork;
+
+	p->thread.ubc_pc = 0;
+
+	return 0;
+}
+
+/* Tracing by user break controller.  */
+static void ubc_set_tracing(int asid, unsigned long pc)
+{
+#if defined(CONFIG_CPU_SH4A)
+	unsigned long val;
+
+	val = (UBC_CBR_ID_INST | UBC_CBR_RW_READ | UBC_CBR_CE);
+	val |= (UBC_CBR_AIE | UBC_CBR_AIV_SET(asid));
+
+	ctrl_outl(val, UBC_CBR0);
+	ctrl_outl(pc,  UBC_CAR0);
+	ctrl_outl(0x0, UBC_CAMR0);
+	ctrl_outl(0x0, UBC_CBCR);
+
+	val = (UBC_CRR_RES | UBC_CRR_PCB | UBC_CRR_BIE);
+	ctrl_outl(val, UBC_CRR0);
+
+	/* Read UBC register that we wrote last, for checking update */
+	val = ctrl_inl(UBC_CRR0);
+
+#else	/* CONFIG_CPU_SH4A */
+	ctrl_outl(pc, UBC_BARA);
+
+#ifdef CONFIG_MMU
+	ctrl_outb(asid, UBC_BASRA);
+#endif
+
+	ctrl_outl(0, UBC_BAMRA);
+
+	if (current_cpu_data.type == CPU_SH7729 ||
+	    current_cpu_data.type == CPU_SH7710 ||
+	    current_cpu_data.type == CPU_SH7712) {
+		ctrl_outw(BBR_INST | BBR_READ | BBR_CPU, UBC_BBRA);
+		ctrl_outl(BRCR_PCBA | BRCR_PCTE, UBC_BRCR);
+	} else {
+		ctrl_outw(BBR_INST | BBR_READ, UBC_BBRA);
+		ctrl_outw(BRCR_PCBA, UBC_BRCR);
+	}
+#endif	/* CONFIG_CPU_SH4A */
+}
+
+/*
+ *	switch_to(x,y) should switch tasks from x to y.
+ *
+ */
+struct task_struct *__switch_to(struct task_struct *prev,
+				struct task_struct *next)
+{
+#if defined(CONFIG_SH_FPU)
+	unlazy_fpu(prev, task_pt_regs(prev));
+#endif
+
+#if defined(CONFIG_GUSA) && defined(CONFIG_PREEMPT)
+	{
+		struct pt_regs *regs;
+
+		preempt_disable();
+		regs = task_pt_regs(prev);
+		if (user_mode(regs) && regs->regs[15] >= 0xc0000000) {
+			int offset = (int)regs->regs[15];
+
+			/* Reset stack pointer: clear critical region mark */
+			regs->regs[15] = regs->regs[1];
+			if (regs->pc < regs->regs[0])
+				/* Go to rewind point */
+				regs->pc = regs->regs[0] + offset;
+		}
+		preempt_enable_no_resched();
+	}
+#endif
+
+#ifdef CONFIG_MMU
+	/*
+	 * Restore the kernel mode register
+	 *	k7 (r7_bank1)
+	 */
+	asm volatile("ldc	%0, r7_bank"
+		     : /* no output */
+		     : "r" (task_thread_info(next)));
+#endif
+
+	/* If no tasks are using the UBC, we're done */
+	if (ubc_usercnt == 0)
+		/* If no tasks are using the UBC, we're done */;
+	else if (next->thread.ubc_pc && next->mm) {
+		int asid = 0;
+#ifdef CONFIG_MMU
+		asid |= cpu_asid(smp_processor_id(), next->mm);
+#endif
+		ubc_set_tracing(asid, next->thread.ubc_pc);
+	} else {
+#if defined(CONFIG_CPU_SH4A)
+		ctrl_outl(UBC_CBR_INIT, UBC_CBR0);
+		ctrl_outl(UBC_CRR_INIT, UBC_CRR0);
+#else
+		ctrl_outw(0, UBC_BBRA);
+		ctrl_outw(0, UBC_BBRB);
+#endif
+	}
+
+	return prev;
+}
+
+asmlinkage int sys_fork(unsigned long r4, unsigned long r5,
+			unsigned long r6, unsigned long r7,
+			struct pt_regs __regs)
+{
+#ifdef CONFIG_MMU
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+	return do_fork(SIGCHLD, regs->regs[15], regs, 0, NULL, NULL);
+#else
+	/* fork almost works, enough to trick you into looking elsewhere :-( */
+	return -EINVAL;
+#endif
+}
+
+asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
+			 unsigned long parent_tidptr,
+			 unsigned long child_tidptr,
+			 struct pt_regs __regs)
+{
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+	if (!newsp)
+		newsp = regs->regs[15];
+	return do_fork(clone_flags, newsp, regs, 0,
+			(int __user *)parent_tidptr,
+			(int __user *)child_tidptr);
+}
+
+/*
+ * This is trivial, and on the face of it looks like it
+ * could equally well be done in user mode.
+ *
+ * Not so, for quite unobvious reasons - register pressure.
+ * In user mode vfork() cannot have a stack frame, and if
+ * done by calling the "clone()" system call directly, you
+ * do not have enough call-clobbered registers to hold all
+ * the information you need.
+ */
+asmlinkage int sys_vfork(unsigned long r4, unsigned long r5,
+			 unsigned long r6, unsigned long r7,
+			 struct pt_regs __regs)
+{
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->regs[15], regs,
+		       0, NULL, NULL);
+}
+
+/*
+ * sys_execve() executes a new program.
+ */
+asmlinkage int sys_execve(char __user *ufilename, char __user * __user *uargv,
+			  char __user * __user *uenvp, unsigned long r7,
+			  struct pt_regs __regs)
+{
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+	int error;
+	char *filename;
+
+	filename = getname(ufilename);
+	error = PTR_ERR(filename);
+	if (IS_ERR(filename))
+		goto out;
+
+	error = do_execve(filename, uargv, uenvp, regs);
+	if (error == 0) {
+		task_lock(current);
+		current->ptrace &= ~PT_DTRACE;
+		task_unlock(current);
+	}
+	putname(filename);
+out:
+	return error;
+}
+
+unsigned long get_wchan(struct task_struct *p)
+{
+	unsigned long pc;
+
+	if (!p || p == current || p->state == TASK_RUNNING)
+		return 0;
+
+	/*
+	 * The same comment as on the Alpha applies here, too ...
+	 */
+	pc = thread_saved_pc(p);
+
+#ifdef CONFIG_FRAME_POINTER
+	if (in_sched_functions(pc)) {
+		unsigned long schedule_frame = (unsigned long)p->thread.sp;
+		return ((unsigned long *)schedule_frame)[21];
+	}
+#endif
+
+	return pc;
+}
+
+asmlinkage void break_point_trap(void)
+{
+	/* Clear tracing.  */
+#if defined(CONFIG_CPU_SH4A)
+	ctrl_outl(UBC_CBR_INIT, UBC_CBR0);
+	ctrl_outl(UBC_CRR_INIT, UBC_CRR0);
+#else
+	ctrl_outw(0, UBC_BBRA);
+	ctrl_outw(0, UBC_BBRB);
+#endif
+	current->thread.ubc_pc = 0;
+	ubc_usercnt -= 1;
+
+	force_sig(SIGTRAP, current);
+}
+
+/*
+ * Generic trap handler.
+ */
+asmlinkage void debug_trap_handler(unsigned long r4, unsigned long r5,
+				   unsigned long r6, unsigned long r7,
+				   struct pt_regs __regs)
+{
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+
+	/* Rewind */
+	regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
+
+	if (notify_die(DIE_TRAP, "debug trap", regs, 0, regs->tra & 0xff,
+		       SIGTRAP) == NOTIFY_STOP)
+		return;
+
+	force_sig(SIGTRAP, current);
+}
+
+/*
+ * Special handler for BUG() traps.
+ */
+asmlinkage void bug_trap_handler(unsigned long r4, unsigned long r5,
+				 unsigned long r6, unsigned long r7,
+				 struct pt_regs __regs)
+{
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+
+	/* Rewind */
+	regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
+
+	if (notify_die(DIE_TRAP, "bug trap", regs, 0, TRAPA_BUG_OPCODE & 0xff,
+		       SIGTRAP) == NOTIFY_STOP)
+		return;
+
+#ifdef CONFIG_BUG
+	if (__kernel_text_address(instruction_pointer(regs))) {
+		u16 insn = *(u16 *)instruction_pointer(regs);
+		if (insn == TRAPA_BUG_OPCODE)
+			handle_BUG(regs);
+	}
+#endif
+
+	force_sig(SIGTRAP, current);
+}
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
new file mode 100644
index 000000000000..0761af4d2a42
--- /dev/null
+++ b/arch/sh/kernel/process_64.c
@@ -0,0 +1,691 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/kernel/process.c
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003  Paul Mundt
+ * Copyright (C) 2003, 2004 Richard Curnow
+ *
+ * Started from SH3/4 version:
+ *   Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima
+ *
+ *   In turn started from i386 version:
+ *     Copyright (C) 1995  Linus Torvalds
+ *
+ */
+
+/*
+ * This file handles the architecture-dependent parts of process handling..
+ */
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/ptrace.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+
+struct task_struct *last_task_used_math = NULL;
+
+static int hlt_counter = 1;
+
+#define HARD_IDLE_TIMEOUT (HZ / 3)
+
+void disable_hlt(void)
+{
+	hlt_counter++;
+}
+
+void enable_hlt(void)
+{
+	hlt_counter--;
+}
+
+static int __init nohlt_setup(char *__unused)
+{
+	hlt_counter = 1;
+	return 1;
+}
+
+static int __init hlt_setup(char *__unused)
+{
+	hlt_counter = 0;
+	return 1;
+}
+
+__setup("nohlt", nohlt_setup);
+__setup("hlt", hlt_setup);
+
+static inline void hlt(void)
+{
+	__asm__ __volatile__ ("sleep" : : : "memory");
+}
+
+/*
+ * The idle loop on a uniprocessor SH..
+ */
+void cpu_idle(void)
+{
+	/* endless idle loop with no priority at all */
+	while (1) {
+		if (hlt_counter) {
+			while (!need_resched())
+				cpu_relax();
+		} else {
+			local_irq_disable();
+			while (!need_resched()) {
+				local_irq_enable();
+				hlt();
+				local_irq_disable();
+			}
+			local_irq_enable();
+		}
+		preempt_enable_no_resched();
+		schedule();
+		preempt_disable();
+	}
+
+}
+
+void machine_restart(char * __unused)
+{
+	extern void phys_stext(void);
+
+	phys_stext();
+}
+
+void machine_halt(void)
+{
+	for (;;);
+}
+
+void machine_power_off(void)
+{
+	extern void enter_deep_standby(void);
+
+	enter_deep_standby();
+}
+
+void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
+
+void show_regs(struct pt_regs * regs)
+{
+	unsigned long long ah, al, bh, bl, ch, cl;
+
+	printk("\n");
+
+	ah = (regs->pc) >> 32;
+	al = (regs->pc) & 0xffffffff;
+	bh = (regs->regs[18]) >> 32;
+	bl = (regs->regs[18]) & 0xffffffff;
+	ch = (regs->regs[15]) >> 32;
+	cl = (regs->regs[15]) & 0xffffffff;
+	printk("PC  : %08Lx%08Lx LINK: %08Lx%08Lx SP  : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->sr) >> 32;
+	al = (regs->sr) & 0xffffffff;
+        asm volatile ("getcon   " __TEA ", %0" : "=r" (bh));
+        asm volatile ("getcon   " __TEA ", %0" : "=r" (bl));
+	bh = (bh) >> 32;
+	bl = (bl) & 0xffffffff;
+        asm volatile ("getcon   " __KCR0 ", %0" : "=r" (ch));
+        asm volatile ("getcon   " __KCR0 ", %0" : "=r" (cl));
+	ch = (ch) >> 32;
+	cl = (cl) & 0xffffffff;
+	printk("SR  : %08Lx%08Lx TEA : %08Lx%08Lx KCR0: %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[0]) >> 32;
+	al = (regs->regs[0]) & 0xffffffff;
+	bh = (regs->regs[1]) >> 32;
+	bl = (regs->regs[1]) & 0xffffffff;
+	ch = (regs->regs[2]) >> 32;
+	cl = (regs->regs[2]) & 0xffffffff;
+	printk("R0  : %08Lx%08Lx R1  : %08Lx%08Lx R2  : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[3]) >> 32;
+	al = (regs->regs[3]) & 0xffffffff;
+	bh = (regs->regs[4]) >> 32;
+	bl = (regs->regs[4]) & 0xffffffff;
+	ch = (regs->regs[5]) >> 32;
+	cl = (regs->regs[5]) & 0xffffffff;
+	printk("R3  : %08Lx%08Lx R4  : %08Lx%08Lx R5  : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[6]) >> 32;
+	al = (regs->regs[6]) & 0xffffffff;
+	bh = (regs->regs[7]) >> 32;
+	bl = (regs->regs[7]) & 0xffffffff;
+	ch = (regs->regs[8]) >> 32;
+	cl = (regs->regs[8]) & 0xffffffff;
+	printk("R6  : %08Lx%08Lx R7  : %08Lx%08Lx R8  : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[9]) >> 32;
+	al = (regs->regs[9]) & 0xffffffff;
+	bh = (regs->regs[10]) >> 32;
+	bl = (regs->regs[10]) & 0xffffffff;
+	ch = (regs->regs[11]) >> 32;
+	cl = (regs->regs[11]) & 0xffffffff;
+	printk("R9  : %08Lx%08Lx R10 : %08Lx%08Lx R11 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[12]) >> 32;
+	al = (regs->regs[12]) & 0xffffffff;
+	bh = (regs->regs[13]) >> 32;
+	bl = (regs->regs[13]) & 0xffffffff;
+	ch = (regs->regs[14]) >> 32;
+	cl = (regs->regs[14]) & 0xffffffff;
+	printk("R12 : %08Lx%08Lx R13 : %08Lx%08Lx R14 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[16]) >> 32;
+	al = (regs->regs[16]) & 0xffffffff;
+	bh = (regs->regs[17]) >> 32;
+	bl = (regs->regs[17]) & 0xffffffff;
+	ch = (regs->regs[19]) >> 32;
+	cl = (regs->regs[19]) & 0xffffffff;
+	printk("R16 : %08Lx%08Lx R17 : %08Lx%08Lx R19 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[20]) >> 32;
+	al = (regs->regs[20]) & 0xffffffff;
+	bh = (regs->regs[21]) >> 32;
+	bl = (regs->regs[21]) & 0xffffffff;
+	ch = (regs->regs[22]) >> 32;
+	cl = (regs->regs[22]) & 0xffffffff;
+	printk("R20 : %08Lx%08Lx R21 : %08Lx%08Lx R22 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[23]) >> 32;
+	al = (regs->regs[23]) & 0xffffffff;
+	bh = (regs->regs[24]) >> 32;
+	bl = (regs->regs[24]) & 0xffffffff;
+	ch = (regs->regs[25]) >> 32;
+	cl = (regs->regs[25]) & 0xffffffff;
+	printk("R23 : %08Lx%08Lx R24 : %08Lx%08Lx R25 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[26]) >> 32;
+	al = (regs->regs[26]) & 0xffffffff;
+	bh = (regs->regs[27]) >> 32;
+	bl = (regs->regs[27]) & 0xffffffff;
+	ch = (regs->regs[28]) >> 32;
+	cl = (regs->regs[28]) & 0xffffffff;
+	printk("R26 : %08Lx%08Lx R27 : %08Lx%08Lx R28 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[29]) >> 32;
+	al = (regs->regs[29]) & 0xffffffff;
+	bh = (regs->regs[30]) >> 32;
+	bl = (regs->regs[30]) & 0xffffffff;
+	ch = (regs->regs[31]) >> 32;
+	cl = (regs->regs[31]) & 0xffffffff;
+	printk("R29 : %08Lx%08Lx R30 : %08Lx%08Lx R31 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[32]) >> 32;
+	al = (regs->regs[32]) & 0xffffffff;
+	bh = (regs->regs[33]) >> 32;
+	bl = (regs->regs[33]) & 0xffffffff;
+	ch = (regs->regs[34]) >> 32;
+	cl = (regs->regs[34]) & 0xffffffff;
+	printk("R32 : %08Lx%08Lx R33 : %08Lx%08Lx R34 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[35]) >> 32;
+	al = (regs->regs[35]) & 0xffffffff;
+	bh = (regs->regs[36]) >> 32;
+	bl = (regs->regs[36]) & 0xffffffff;
+	ch = (regs->regs[37]) >> 32;
+	cl = (regs->regs[37]) & 0xffffffff;
+	printk("R35 : %08Lx%08Lx R36 : %08Lx%08Lx R37 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[38]) >> 32;
+	al = (regs->regs[38]) & 0xffffffff;
+	bh = (regs->regs[39]) >> 32;
+	bl = (regs->regs[39]) & 0xffffffff;
+	ch = (regs->regs[40]) >> 32;
+	cl = (regs->regs[40]) & 0xffffffff;
+	printk("R38 : %08Lx%08Lx R39 : %08Lx%08Lx R40 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[41]) >> 32;
+	al = (regs->regs[41]) & 0xffffffff;
+	bh = (regs->regs[42]) >> 32;
+	bl = (regs->regs[42]) & 0xffffffff;
+	ch = (regs->regs[43]) >> 32;
+	cl = (regs->regs[43]) & 0xffffffff;
+	printk("R41 : %08Lx%08Lx R42 : %08Lx%08Lx R43 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[44]) >> 32;
+	al = (regs->regs[44]) & 0xffffffff;
+	bh = (regs->regs[45]) >> 32;
+	bl = (regs->regs[45]) & 0xffffffff;
+	ch = (regs->regs[46]) >> 32;
+	cl = (regs->regs[46]) & 0xffffffff;
+	printk("R44 : %08Lx%08Lx R45 : %08Lx%08Lx R46 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[47]) >> 32;
+	al = (regs->regs[47]) & 0xffffffff;
+	bh = (regs->regs[48]) >> 32;
+	bl = (regs->regs[48]) & 0xffffffff;
+	ch = (regs->regs[49]) >> 32;
+	cl = (regs->regs[49]) & 0xffffffff;
+	printk("R47 : %08Lx%08Lx R48 : %08Lx%08Lx R49 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[50]) >> 32;
+	al = (regs->regs[50]) & 0xffffffff;
+	bh = (regs->regs[51]) >> 32;
+	bl = (regs->regs[51]) & 0xffffffff;
+	ch = (regs->regs[52]) >> 32;
+	cl = (regs->regs[52]) & 0xffffffff;
+	printk("R50 : %08Lx%08Lx R51 : %08Lx%08Lx R52 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[53]) >> 32;
+	al = (regs->regs[53]) & 0xffffffff;
+	bh = (regs->regs[54]) >> 32;
+	bl = (regs->regs[54]) & 0xffffffff;
+	ch = (regs->regs[55]) >> 32;
+	cl = (regs->regs[55]) & 0xffffffff;
+	printk("R53 : %08Lx%08Lx R54 : %08Lx%08Lx R55 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[56]) >> 32;
+	al = (regs->regs[56]) & 0xffffffff;
+	bh = (regs->regs[57]) >> 32;
+	bl = (regs->regs[57]) & 0xffffffff;
+	ch = (regs->regs[58]) >> 32;
+	cl = (regs->regs[58]) & 0xffffffff;
+	printk("R56 : %08Lx%08Lx R57 : %08Lx%08Lx R58 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[59]) >> 32;
+	al = (regs->regs[59]) & 0xffffffff;
+	bh = (regs->regs[60]) >> 32;
+	bl = (regs->regs[60]) & 0xffffffff;
+	ch = (regs->regs[61]) >> 32;
+	cl = (regs->regs[61]) & 0xffffffff;
+	printk("R59 : %08Lx%08Lx R60 : %08Lx%08Lx R61 : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->regs[62]) >> 32;
+	al = (regs->regs[62]) & 0xffffffff;
+	bh = (regs->tregs[0]) >> 32;
+	bl = (regs->tregs[0]) & 0xffffffff;
+	ch = (regs->tregs[1]) >> 32;
+	cl = (regs->tregs[1]) & 0xffffffff;
+	printk("R62 : %08Lx%08Lx T0  : %08Lx%08Lx T1  : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->tregs[2]) >> 32;
+	al = (regs->tregs[2]) & 0xffffffff;
+	bh = (regs->tregs[3]) >> 32;
+	bl = (regs->tregs[3]) & 0xffffffff;
+	ch = (regs->tregs[4]) >> 32;
+	cl = (regs->tregs[4]) & 0xffffffff;
+	printk("T2  : %08Lx%08Lx T3  : %08Lx%08Lx T4  : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	ah = (regs->tregs[5]) >> 32;
+	al = (regs->tregs[5]) & 0xffffffff;
+	bh = (regs->tregs[6]) >> 32;
+	bl = (regs->tregs[6]) & 0xffffffff;
+	ch = (regs->tregs[7]) >> 32;
+	cl = (regs->tregs[7]) & 0xffffffff;
+	printk("T5  : %08Lx%08Lx T6  : %08Lx%08Lx T7  : %08Lx%08Lx\n",
+	       ah, al, bh, bl, ch, cl);
+
+	/*
+	 * If we're in kernel mode, dump the stack too..
+	 */
+	if (!user_mode(regs)) {
+		void show_stack(struct task_struct *tsk, unsigned long *sp);
+		unsigned long sp = regs->regs[15] & 0xffffffff;
+		struct task_struct *tsk = get_current();
+
+		tsk->thread.kregs = regs;
+
+		show_stack(tsk, (unsigned long *)sp);
+	}
+}
+
+struct task_struct * alloc_task_struct(void)
+{
+	/* Get task descriptor pages */
+	return (struct task_struct *)
+		__get_free_pages(GFP_KERNEL, get_order(THREAD_SIZE));
+}
+
+void free_task_struct(struct task_struct *p)
+{
+	free_pages((unsigned long) p, get_order(THREAD_SIZE));
+}
+
+/*
+ * Create a kernel thread
+ */
+ATTRIB_NORET void kernel_thread_helper(void *arg, int (*fn)(void *))
+{
+	do_exit(fn(arg));
+}
+
+/*
+ * This is the mechanism for creating a new kernel thread.
+ *
+ * NOTE! Only a kernel-only process(ie the swapper or direct descendants
+ * who haven't done an "execve()") should use this: it will work within
+ * a system call from a "real" process, but the process memory space will
+ * not be freed until both the parent and the child have exited.
+ */
+int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
+{
+	struct pt_regs regs;
+
+	memset(&regs, 0, sizeof(regs));
+	regs.regs[2] = (unsigned long)arg;
+	regs.regs[3] = (unsigned long)fn;
+
+	regs.pc = (unsigned long)kernel_thread_helper;
+	regs.sr = (1 << 30);
+
+	return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
+		       &regs, 0, NULL, NULL);
+}
+
+/*
+ * Free current thread data structures etc..
+ */
+void exit_thread(void)
+{
+	/* See arch/sparc/kernel/process.c for the precedent for doing this -- RPC.
+
+	   The SH-5 FPU save/restore approach relies on last_task_used_math
+	   pointing to a live task_struct.  When another task tries to use the
+	   FPU for the 1st time, the FPUDIS trap handling (see
+	   arch/sh64/kernel/fpu.c) will save the existing FPU state to the
+	   FP regs field within last_task_used_math before re-loading the new
+	   task's FPU state (or initialising it if the FPU has been used
+	   before).  So if last_task_used_math is stale, and its page has already been
+	   re-allocated for another use, the consequences are rather grim. Unless we
+	   null it here, there is no other path through which it would get safely
+	   nulled. */
+
+#ifdef CONFIG_SH_FPU
+	if (last_task_used_math == current) {
+		last_task_used_math = NULL;
+	}
+#endif
+}
+
+void flush_thread(void)
+{
+
+	/* Called by fs/exec.c (flush_old_exec) to remove traces of a
+	 * previously running executable. */
+#ifdef CONFIG_SH_FPU
+	if (last_task_used_math == current) {
+		last_task_used_math = NULL;
+	}
+	/* Force FPU state to be reinitialised after exec */
+	clear_used_math();
+#endif
+
+	/* if we are a kernel thread, about to change to user thread,
+         * update kreg
+         */
+	if(current->thread.kregs==&fake_swapper_regs) {
+          current->thread.kregs =
+             ((struct pt_regs *)(THREAD_SIZE + (unsigned long) current) - 1);
+	  current->thread.uregs = current->thread.kregs;
+	}
+}
+
+void release_thread(struct task_struct *dead_task)
+{
+	/* do nothing */
+}
+
+/* Fill in the fpu structure for a core dump.. */
+int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
+{
+#ifdef CONFIG_SH_FPU
+	int fpvalid;
+	struct task_struct *tsk = current;
+
+	fpvalid = !!tsk_used_math(tsk);
+	if (fpvalid) {
+		if (current == last_task_used_math) {
+			grab_fpu();
+			fpsave(&tsk->thread.fpu.hard);
+			release_fpu();
+			last_task_used_math = 0;
+			regs->sr |= SR_FD;
+		}
+
+		memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
+	}
+
+	return fpvalid;
+#else
+	return 0; /* Task didn't use the fpu at all. */
+#endif
+}
+
+asmlinkage void ret_from_fork(void);
+
+int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+		unsigned long unused,
+		struct task_struct *p, struct pt_regs *regs)
+{
+	struct pt_regs *childregs;
+	unsigned long long se;			/* Sign extension */
+
+#ifdef CONFIG_SH_FPU
+	if(last_task_used_math == current) {
+		grab_fpu();
+		fpsave(&current->thread.fpu.hard);
+		release_fpu();
+		last_task_used_math = NULL;
+		regs->sr |= SR_FD;
+	}
+#endif
+	/* Copy from sh version */
+	childregs = (struct pt_regs *)(THREAD_SIZE + task_stack_page(p)) - 1;
+
+	*childregs = *regs;
+
+	if (user_mode(regs)) {
+		childregs->regs[15] = usp;
+		p->thread.uregs = childregs;
+	} else {
+		childregs->regs[15] = (unsigned long)task_stack_page(p) + THREAD_SIZE;
+	}
+
+	childregs->regs[9] = 0; /* Set return value for child */
+	childregs->sr |= SR_FD; /* Invalidate FPU flag */
+
+	p->thread.sp = (unsigned long) childregs;
+	p->thread.pc = (unsigned long) ret_from_fork;
+
+	/*
+	 * Sign extend the edited stack.
+         * Note that thread.pc and thread.pc will stay
+	 * 32-bit wide and context switch must take care
+	 * of NEFF sign extension.
+	 */
+
+	se = childregs->regs[15];
+	se = (se & NEFF_SIGN) ? (se | NEFF_MASK) : se;
+	childregs->regs[15] = se;
+
+	return 0;
+}
+
+asmlinkage int sys_fork(unsigned long r2, unsigned long r3,
+			unsigned long r4, unsigned long r5,
+			unsigned long r6, unsigned long r7,
+			struct pt_regs *pregs)
+{
+	return do_fork(SIGCHLD, pregs->regs[15], pregs, 0, 0, 0);
+}
+
+asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
+			 unsigned long r4, unsigned long r5,
+			 unsigned long r6, unsigned long r7,
+			 struct pt_regs *pregs)
+{
+	if (!newsp)
+		newsp = pregs->regs[15];
+	return do_fork(clone_flags, newsp, pregs, 0, 0, 0);
+}
+
+/*
+ * This is trivial, and on the face of it looks like it
+ * could equally well be done in user mode.
+ *
+ * Not so, for quite unobvious reasons - register pressure.
+ * In user mode vfork() cannot have a stack frame, and if
+ * done by calling the "clone()" system call directly, you
+ * do not have enough call-clobbered registers to hold all
+ * the information you need.
+ */
+asmlinkage int sys_vfork(unsigned long r2, unsigned long r3,
+			 unsigned long r4, unsigned long r5,
+			 unsigned long r6, unsigned long r7,
+			 struct pt_regs *pregs)
+{
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, pregs->regs[15], pregs, 0, 0, 0);
+}
+
+/*
+ * sys_execve() executes a new program.
+ */
+asmlinkage int sys_execve(char *ufilename, char **uargv,
+			  char **uenvp, unsigned long r5,
+			  unsigned long r6, unsigned long r7,
+			  struct pt_regs *pregs)
+{
+	int error;
+	char *filename;
+
+	lock_kernel();
+	filename = getname((char __user *)ufilename);
+	error = PTR_ERR(filename);
+	if (IS_ERR(filename))
+		goto out;
+
+	error = do_execve(filename,
+			  (char __user * __user *)uargv,
+			  (char __user * __user *)uenvp,
+			  pregs);
+	if (error == 0) {
+		task_lock(current);
+		current->ptrace &= ~PT_DTRACE;
+		task_unlock(current);
+	}
+	putname(filename);
+out:
+	unlock_kernel();
+	return error;
+}
+
+/*
+ * These bracket the sleeping functions..
+ */
+extern void interruptible_sleep_on(wait_queue_head_t *q);
+
+#define mid_sched	((unsigned long) interruptible_sleep_on)
+
+static int in_sh64_switch_to(unsigned long pc)
+{
+	extern char __sh64_switch_to_end;
+	/* For a sleeping task, the PC is somewhere in the middle of the function,
+	   so we don't have to worry about masking the LSB off */
+	return (pc >= (unsigned long) sh64_switch_to) &&
+	       (pc < (unsigned long) &__sh64_switch_to_end);
+}
+
+unsigned long get_wchan(struct task_struct *p)
+{
+	unsigned long schedule_fp;
+	unsigned long sh64_switch_to_fp;
+	unsigned long schedule_caller_pc;
+	unsigned long pc;
+
+	if (!p || p == current || p->state == TASK_RUNNING)
+		return 0;
+
+	/*
+	 * The same comment as on the Alpha applies here, too ...
+	 */
+	pc = thread_saved_pc(p);
+
+#ifdef CONFIG_FRAME_POINTER
+	if (in_sh64_switch_to(pc)) {
+		sh64_switch_to_fp = (long) p->thread.sp;
+		/* r14 is saved at offset 4 in the sh64_switch_to frame */
+		schedule_fp = *(unsigned long *) (long)(sh64_switch_to_fp + 4);
+
+		/* and the caller of 'schedule' is (currently!) saved at offset 24
+		   in the frame of schedule (from disasm) */
+		schedule_caller_pc = *(unsigned long *) (long)(schedule_fp + 24);
+		return schedule_caller_pc;
+	}
+#endif
+	return pc;
+}
+
+/* Provide a /proc/asids file that lists out the
+   ASIDs currently associated with the processes.  (If the DM.PC register is
+   examined through the debug link, this shows ASID + PC.  To make use of this,
+   the PID->ASID relationship needs to be known.  This is primarily for
+   debugging.)
+   */
+
+#if defined(CONFIG_SH64_PROC_ASIDS)
+static int
+asids_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, void *data)
+{
+	int len=0;
+	struct task_struct *p;
+	read_lock(&tasklist_lock);
+	for_each_process(p) {
+		int pid = p->pid;
+		struct mm_struct *mm;
+		if (!pid) continue;
+		mm = p->mm;
+		if (mm) {
+			unsigned long asid, context;
+			context = mm->context;
+			asid = (context & 0xff);
+			len += sprintf(buf+len, "%5d : %02lx\n", pid, asid);
+		} else {
+			len += sprintf(buf+len, "%5d : (none)\n", pid);
+		}
+	}
+	read_unlock(&tasklist_lock);
+	*eof = 1;
+	return len;
+}
+
+static int __init register_proc_asids(void)
+{
+	create_proc_read_entry("asids", 0, NULL, asids_proc_info, NULL);
+	return 0;
+}
+__initcall(register_proc_asids);
+#endif
diff --git a/arch/sh64/kernel/process.c b/arch/sh64/kernel/process.c
deleted file mode 100644
index 0761af4d2a42..000000000000
--- a/arch/sh64/kernel/process.c
+++ /dev/null
@@ -1,691 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/process.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003  Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- * Started from SH3/4 version:
- *   Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima
- *
- *   In turn started from i386 version:
- *     Copyright (C) 1995  Linus Torvalds
- *
- */
-
-/*
- * This file handles the architecture-dependent parts of process handling..
- */
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/ptrace.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/proc_fs.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-struct task_struct *last_task_used_math = NULL;
-
-static int hlt_counter = 1;
-
-#define HARD_IDLE_TIMEOUT (HZ / 3)
-
-void disable_hlt(void)
-{
-	hlt_counter++;
-}
-
-void enable_hlt(void)
-{
-	hlt_counter--;
-}
-
-static int __init nohlt_setup(char *__unused)
-{
-	hlt_counter = 1;
-	return 1;
-}
-
-static int __init hlt_setup(char *__unused)
-{
-	hlt_counter = 0;
-	return 1;
-}
-
-__setup("nohlt", nohlt_setup);
-__setup("hlt", hlt_setup);
-
-static inline void hlt(void)
-{
-	__asm__ __volatile__ ("sleep" : : : "memory");
-}
-
-/*
- * The idle loop on a uniprocessor SH..
- */
-void cpu_idle(void)
-{
-	/* endless idle loop with no priority at all */
-	while (1) {
-		if (hlt_counter) {
-			while (!need_resched())
-				cpu_relax();
-		} else {
-			local_irq_disable();
-			while (!need_resched()) {
-				local_irq_enable();
-				hlt();
-				local_irq_disable();
-			}
-			local_irq_enable();
-		}
-		preempt_enable_no_resched();
-		schedule();
-		preempt_disable();
-	}
-
-}
-
-void machine_restart(char * __unused)
-{
-	extern void phys_stext(void);
-
-	phys_stext();
-}
-
-void machine_halt(void)
-{
-	for (;;);
-}
-
-void machine_power_off(void)
-{
-	extern void enter_deep_standby(void);
-
-	enter_deep_standby();
-}
-
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
-void show_regs(struct pt_regs * regs)
-{
-	unsigned long long ah, al, bh, bl, ch, cl;
-
-	printk("\n");
-
-	ah = (regs->pc) >> 32;
-	al = (regs->pc) & 0xffffffff;
-	bh = (regs->regs[18]) >> 32;
-	bl = (regs->regs[18]) & 0xffffffff;
-	ch = (regs->regs[15]) >> 32;
-	cl = (regs->regs[15]) & 0xffffffff;
-	printk("PC  : %08Lx%08Lx LINK: %08Lx%08Lx SP  : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->sr) >> 32;
-	al = (regs->sr) & 0xffffffff;
-        asm volatile ("getcon   " __TEA ", %0" : "=r" (bh));
-        asm volatile ("getcon   " __TEA ", %0" : "=r" (bl));
-	bh = (bh) >> 32;
-	bl = (bl) & 0xffffffff;
-        asm volatile ("getcon   " __KCR0 ", %0" : "=r" (ch));
-        asm volatile ("getcon   " __KCR0 ", %0" : "=r" (cl));
-	ch = (ch) >> 32;
-	cl = (cl) & 0xffffffff;
-	printk("SR  : %08Lx%08Lx TEA : %08Lx%08Lx KCR0: %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[0]) >> 32;
-	al = (regs->regs[0]) & 0xffffffff;
-	bh = (regs->regs[1]) >> 32;
-	bl = (regs->regs[1]) & 0xffffffff;
-	ch = (regs->regs[2]) >> 32;
-	cl = (regs->regs[2]) & 0xffffffff;
-	printk("R0  : %08Lx%08Lx R1  : %08Lx%08Lx R2  : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[3]) >> 32;
-	al = (regs->regs[3]) & 0xffffffff;
-	bh = (regs->regs[4]) >> 32;
-	bl = (regs->regs[4]) & 0xffffffff;
-	ch = (regs->regs[5]) >> 32;
-	cl = (regs->regs[5]) & 0xffffffff;
-	printk("R3  : %08Lx%08Lx R4  : %08Lx%08Lx R5  : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[6]) >> 32;
-	al = (regs->regs[6]) & 0xffffffff;
-	bh = (regs->regs[7]) >> 32;
-	bl = (regs->regs[7]) & 0xffffffff;
-	ch = (regs->regs[8]) >> 32;
-	cl = (regs->regs[8]) & 0xffffffff;
-	printk("R6  : %08Lx%08Lx R7  : %08Lx%08Lx R8  : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[9]) >> 32;
-	al = (regs->regs[9]) & 0xffffffff;
-	bh = (regs->regs[10]) >> 32;
-	bl = (regs->regs[10]) & 0xffffffff;
-	ch = (regs->regs[11]) >> 32;
-	cl = (regs->regs[11]) & 0xffffffff;
-	printk("R9  : %08Lx%08Lx R10 : %08Lx%08Lx R11 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[12]) >> 32;
-	al = (regs->regs[12]) & 0xffffffff;
-	bh = (regs->regs[13]) >> 32;
-	bl = (regs->regs[13]) & 0xffffffff;
-	ch = (regs->regs[14]) >> 32;
-	cl = (regs->regs[14]) & 0xffffffff;
-	printk("R12 : %08Lx%08Lx R13 : %08Lx%08Lx R14 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[16]) >> 32;
-	al = (regs->regs[16]) & 0xffffffff;
-	bh = (regs->regs[17]) >> 32;
-	bl = (regs->regs[17]) & 0xffffffff;
-	ch = (regs->regs[19]) >> 32;
-	cl = (regs->regs[19]) & 0xffffffff;
-	printk("R16 : %08Lx%08Lx R17 : %08Lx%08Lx R19 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[20]) >> 32;
-	al = (regs->regs[20]) & 0xffffffff;
-	bh = (regs->regs[21]) >> 32;
-	bl = (regs->regs[21]) & 0xffffffff;
-	ch = (regs->regs[22]) >> 32;
-	cl = (regs->regs[22]) & 0xffffffff;
-	printk("R20 : %08Lx%08Lx R21 : %08Lx%08Lx R22 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[23]) >> 32;
-	al = (regs->regs[23]) & 0xffffffff;
-	bh = (regs->regs[24]) >> 32;
-	bl = (regs->regs[24]) & 0xffffffff;
-	ch = (regs->regs[25]) >> 32;
-	cl = (regs->regs[25]) & 0xffffffff;
-	printk("R23 : %08Lx%08Lx R24 : %08Lx%08Lx R25 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[26]) >> 32;
-	al = (regs->regs[26]) & 0xffffffff;
-	bh = (regs->regs[27]) >> 32;
-	bl = (regs->regs[27]) & 0xffffffff;
-	ch = (regs->regs[28]) >> 32;
-	cl = (regs->regs[28]) & 0xffffffff;
-	printk("R26 : %08Lx%08Lx R27 : %08Lx%08Lx R28 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[29]) >> 32;
-	al = (regs->regs[29]) & 0xffffffff;
-	bh = (regs->regs[30]) >> 32;
-	bl = (regs->regs[30]) & 0xffffffff;
-	ch = (regs->regs[31]) >> 32;
-	cl = (regs->regs[31]) & 0xffffffff;
-	printk("R29 : %08Lx%08Lx R30 : %08Lx%08Lx R31 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[32]) >> 32;
-	al = (regs->regs[32]) & 0xffffffff;
-	bh = (regs->regs[33]) >> 32;
-	bl = (regs->regs[33]) & 0xffffffff;
-	ch = (regs->regs[34]) >> 32;
-	cl = (regs->regs[34]) & 0xffffffff;
-	printk("R32 : %08Lx%08Lx R33 : %08Lx%08Lx R34 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[35]) >> 32;
-	al = (regs->regs[35]) & 0xffffffff;
-	bh = (regs->regs[36]) >> 32;
-	bl = (regs->regs[36]) & 0xffffffff;
-	ch = (regs->regs[37]) >> 32;
-	cl = (regs->regs[37]) & 0xffffffff;
-	printk("R35 : %08Lx%08Lx R36 : %08Lx%08Lx R37 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[38]) >> 32;
-	al = (regs->regs[38]) & 0xffffffff;
-	bh = (regs->regs[39]) >> 32;
-	bl = (regs->regs[39]) & 0xffffffff;
-	ch = (regs->regs[40]) >> 32;
-	cl = (regs->regs[40]) & 0xffffffff;
-	printk("R38 : %08Lx%08Lx R39 : %08Lx%08Lx R40 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[41]) >> 32;
-	al = (regs->regs[41]) & 0xffffffff;
-	bh = (regs->regs[42]) >> 32;
-	bl = (regs->regs[42]) & 0xffffffff;
-	ch = (regs->regs[43]) >> 32;
-	cl = (regs->regs[43]) & 0xffffffff;
-	printk("R41 : %08Lx%08Lx R42 : %08Lx%08Lx R43 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[44]) >> 32;
-	al = (regs->regs[44]) & 0xffffffff;
-	bh = (regs->regs[45]) >> 32;
-	bl = (regs->regs[45]) & 0xffffffff;
-	ch = (regs->regs[46]) >> 32;
-	cl = (regs->regs[46]) & 0xffffffff;
-	printk("R44 : %08Lx%08Lx R45 : %08Lx%08Lx R46 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[47]) >> 32;
-	al = (regs->regs[47]) & 0xffffffff;
-	bh = (regs->regs[48]) >> 32;
-	bl = (regs->regs[48]) & 0xffffffff;
-	ch = (regs->regs[49]) >> 32;
-	cl = (regs->regs[49]) & 0xffffffff;
-	printk("R47 : %08Lx%08Lx R48 : %08Lx%08Lx R49 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[50]) >> 32;
-	al = (regs->regs[50]) & 0xffffffff;
-	bh = (regs->regs[51]) >> 32;
-	bl = (regs->regs[51]) & 0xffffffff;
-	ch = (regs->regs[52]) >> 32;
-	cl = (regs->regs[52]) & 0xffffffff;
-	printk("R50 : %08Lx%08Lx R51 : %08Lx%08Lx R52 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[53]) >> 32;
-	al = (regs->regs[53]) & 0xffffffff;
-	bh = (regs->regs[54]) >> 32;
-	bl = (regs->regs[54]) & 0xffffffff;
-	ch = (regs->regs[55]) >> 32;
-	cl = (regs->regs[55]) & 0xffffffff;
-	printk("R53 : %08Lx%08Lx R54 : %08Lx%08Lx R55 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[56]) >> 32;
-	al = (regs->regs[56]) & 0xffffffff;
-	bh = (regs->regs[57]) >> 32;
-	bl = (regs->regs[57]) & 0xffffffff;
-	ch = (regs->regs[58]) >> 32;
-	cl = (regs->regs[58]) & 0xffffffff;
-	printk("R56 : %08Lx%08Lx R57 : %08Lx%08Lx R58 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[59]) >> 32;
-	al = (regs->regs[59]) & 0xffffffff;
-	bh = (regs->regs[60]) >> 32;
-	bl = (regs->regs[60]) & 0xffffffff;
-	ch = (regs->regs[61]) >> 32;
-	cl = (regs->regs[61]) & 0xffffffff;
-	printk("R59 : %08Lx%08Lx R60 : %08Lx%08Lx R61 : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->regs[62]) >> 32;
-	al = (regs->regs[62]) & 0xffffffff;
-	bh = (regs->tregs[0]) >> 32;
-	bl = (regs->tregs[0]) & 0xffffffff;
-	ch = (regs->tregs[1]) >> 32;
-	cl = (regs->tregs[1]) & 0xffffffff;
-	printk("R62 : %08Lx%08Lx T0  : %08Lx%08Lx T1  : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->tregs[2]) >> 32;
-	al = (regs->tregs[2]) & 0xffffffff;
-	bh = (regs->tregs[3]) >> 32;
-	bl = (regs->tregs[3]) & 0xffffffff;
-	ch = (regs->tregs[4]) >> 32;
-	cl = (regs->tregs[4]) & 0xffffffff;
-	printk("T2  : %08Lx%08Lx T3  : %08Lx%08Lx T4  : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	ah = (regs->tregs[5]) >> 32;
-	al = (regs->tregs[5]) & 0xffffffff;
-	bh = (regs->tregs[6]) >> 32;
-	bl = (regs->tregs[6]) & 0xffffffff;
-	ch = (regs->tregs[7]) >> 32;
-	cl = (regs->tregs[7]) & 0xffffffff;
-	printk("T5  : %08Lx%08Lx T6  : %08Lx%08Lx T7  : %08Lx%08Lx\n",
-	       ah, al, bh, bl, ch, cl);
-
-	/*
-	 * If we're in kernel mode, dump the stack too..
-	 */
-	if (!user_mode(regs)) {
-		void show_stack(struct task_struct *tsk, unsigned long *sp);
-		unsigned long sp = regs->regs[15] & 0xffffffff;
-		struct task_struct *tsk = get_current();
-
-		tsk->thread.kregs = regs;
-
-		show_stack(tsk, (unsigned long *)sp);
-	}
-}
-
-struct task_struct * alloc_task_struct(void)
-{
-	/* Get task descriptor pages */
-	return (struct task_struct *)
-		__get_free_pages(GFP_KERNEL, get_order(THREAD_SIZE));
-}
-
-void free_task_struct(struct task_struct *p)
-{
-	free_pages((unsigned long) p, get_order(THREAD_SIZE));
-}
-
-/*
- * Create a kernel thread
- */
-ATTRIB_NORET void kernel_thread_helper(void *arg, int (*fn)(void *))
-{
-	do_exit(fn(arg));
-}
-
-/*
- * This is the mechanism for creating a new kernel thread.
- *
- * NOTE! Only a kernel-only process(ie the swapper or direct descendants
- * who haven't done an "execve()") should use this: it will work within
- * a system call from a "real" process, but the process memory space will
- * not be freed until both the parent and the child have exited.
- */
-int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
-{
-	struct pt_regs regs;
-
-	memset(&regs, 0, sizeof(regs));
-	regs.regs[2] = (unsigned long)arg;
-	regs.regs[3] = (unsigned long)fn;
-
-	regs.pc = (unsigned long)kernel_thread_helper;
-	regs.sr = (1 << 30);
-
-	return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
-		       &regs, 0, NULL, NULL);
-}
-
-/*
- * Free current thread data structures etc..
- */
-void exit_thread(void)
-{
-	/* See arch/sparc/kernel/process.c for the precedent for doing this -- RPC.
-
-	   The SH-5 FPU save/restore approach relies on last_task_used_math
-	   pointing to a live task_struct.  When another task tries to use the
-	   FPU for the 1st time, the FPUDIS trap handling (see
-	   arch/sh64/kernel/fpu.c) will save the existing FPU state to the
-	   FP regs field within last_task_used_math before re-loading the new
-	   task's FPU state (or initialising it if the FPU has been used
-	   before).  So if last_task_used_math is stale, and its page has already been
-	   re-allocated for another use, the consequences are rather grim. Unless we
-	   null it here, there is no other path through which it would get safely
-	   nulled. */
-
-#ifdef CONFIG_SH_FPU
-	if (last_task_used_math == current) {
-		last_task_used_math = NULL;
-	}
-#endif
-}
-
-void flush_thread(void)
-{
-
-	/* Called by fs/exec.c (flush_old_exec) to remove traces of a
-	 * previously running executable. */
-#ifdef CONFIG_SH_FPU
-	if (last_task_used_math == current) {
-		last_task_used_math = NULL;
-	}
-	/* Force FPU state to be reinitialised after exec */
-	clear_used_math();
-#endif
-
-	/* if we are a kernel thread, about to change to user thread,
-         * update kreg
-         */
-	if(current->thread.kregs==&fake_swapper_regs) {
-          current->thread.kregs =
-             ((struct pt_regs *)(THREAD_SIZE + (unsigned long) current) - 1);
-	  current->thread.uregs = current->thread.kregs;
-	}
-}
-
-void release_thread(struct task_struct *dead_task)
-{
-	/* do nothing */
-}
-
-/* Fill in the fpu structure for a core dump.. */
-int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
-{
-#ifdef CONFIG_SH_FPU
-	int fpvalid;
-	struct task_struct *tsk = current;
-
-	fpvalid = !!tsk_used_math(tsk);
-	if (fpvalid) {
-		if (current == last_task_used_math) {
-			grab_fpu();
-			fpsave(&tsk->thread.fpu.hard);
-			release_fpu();
-			last_task_used_math = 0;
-			regs->sr |= SR_FD;
-		}
-
-		memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
-	}
-
-	return fpvalid;
-#else
-	return 0; /* Task didn't use the fpu at all. */
-#endif
-}
-
-asmlinkage void ret_from_fork(void);
-
-int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
-		unsigned long unused,
-		struct task_struct *p, struct pt_regs *regs)
-{
-	struct pt_regs *childregs;
-	unsigned long long se;			/* Sign extension */
-
-#ifdef CONFIG_SH_FPU
-	if(last_task_used_math == current) {
-		grab_fpu();
-		fpsave(&current->thread.fpu.hard);
-		release_fpu();
-		last_task_used_math = NULL;
-		regs->sr |= SR_FD;
-	}
-#endif
-	/* Copy from sh version */
-	childregs = (struct pt_regs *)(THREAD_SIZE + task_stack_page(p)) - 1;
-
-	*childregs = *regs;
-
-	if (user_mode(regs)) {
-		childregs->regs[15] = usp;
-		p->thread.uregs = childregs;
-	} else {
-		childregs->regs[15] = (unsigned long)task_stack_page(p) + THREAD_SIZE;
-	}
-
-	childregs->regs[9] = 0; /* Set return value for child */
-	childregs->sr |= SR_FD; /* Invalidate FPU flag */
-
-	p->thread.sp = (unsigned long) childregs;
-	p->thread.pc = (unsigned long) ret_from_fork;
-
-	/*
-	 * Sign extend the edited stack.
-         * Note that thread.pc and thread.pc will stay
-	 * 32-bit wide and context switch must take care
-	 * of NEFF sign extension.
-	 */
-
-	se = childregs->regs[15];
-	se = (se & NEFF_SIGN) ? (se | NEFF_MASK) : se;
-	childregs->regs[15] = se;
-
-	return 0;
-}
-
-asmlinkage int sys_fork(unsigned long r2, unsigned long r3,
-			unsigned long r4, unsigned long r5,
-			unsigned long r6, unsigned long r7,
-			struct pt_regs *pregs)
-{
-	return do_fork(SIGCHLD, pregs->regs[15], pregs, 0, 0, 0);
-}
-
-asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
-			 unsigned long r4, unsigned long r5,
-			 unsigned long r6, unsigned long r7,
-			 struct pt_regs *pregs)
-{
-	if (!newsp)
-		newsp = pregs->regs[15];
-	return do_fork(clone_flags, newsp, pregs, 0, 0, 0);
-}
-
-/*
- * This is trivial, and on the face of it looks like it
- * could equally well be done in user mode.
- *
- * Not so, for quite unobvious reasons - register pressure.
- * In user mode vfork() cannot have a stack frame, and if
- * done by calling the "clone()" system call directly, you
- * do not have enough call-clobbered registers to hold all
- * the information you need.
- */
-asmlinkage int sys_vfork(unsigned long r2, unsigned long r3,
-			 unsigned long r4, unsigned long r5,
-			 unsigned long r6, unsigned long r7,
-			 struct pt_regs *pregs)
-{
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, pregs->regs[15], pregs, 0, 0, 0);
-}
-
-/*
- * sys_execve() executes a new program.
- */
-asmlinkage int sys_execve(char *ufilename, char **uargv,
-			  char **uenvp, unsigned long r5,
-			  unsigned long r6, unsigned long r7,
-			  struct pt_regs *pregs)
-{
-	int error;
-	char *filename;
-
-	lock_kernel();
-	filename = getname((char __user *)ufilename);
-	error = PTR_ERR(filename);
-	if (IS_ERR(filename))
-		goto out;
-
-	error = do_execve(filename,
-			  (char __user * __user *)uargv,
-			  (char __user * __user *)uenvp,
-			  pregs);
-	if (error == 0) {
-		task_lock(current);
-		current->ptrace &= ~PT_DTRACE;
-		task_unlock(current);
-	}
-	putname(filename);
-out:
-	unlock_kernel();
-	return error;
-}
-
-/*
- * These bracket the sleeping functions..
- */
-extern void interruptible_sleep_on(wait_queue_head_t *q);
-
-#define mid_sched	((unsigned long) interruptible_sleep_on)
-
-static int in_sh64_switch_to(unsigned long pc)
-{
-	extern char __sh64_switch_to_end;
-	/* For a sleeping task, the PC is somewhere in the middle of the function,
-	   so we don't have to worry about masking the LSB off */
-	return (pc >= (unsigned long) sh64_switch_to) &&
-	       (pc < (unsigned long) &__sh64_switch_to_end);
-}
-
-unsigned long get_wchan(struct task_struct *p)
-{
-	unsigned long schedule_fp;
-	unsigned long sh64_switch_to_fp;
-	unsigned long schedule_caller_pc;
-	unsigned long pc;
-
-	if (!p || p == current || p->state == TASK_RUNNING)
-		return 0;
-
-	/*
-	 * The same comment as on the Alpha applies here, too ...
-	 */
-	pc = thread_saved_pc(p);
-
-#ifdef CONFIG_FRAME_POINTER
-	if (in_sh64_switch_to(pc)) {
-		sh64_switch_to_fp = (long) p->thread.sp;
-		/* r14 is saved at offset 4 in the sh64_switch_to frame */
-		schedule_fp = *(unsigned long *) (long)(sh64_switch_to_fp + 4);
-
-		/* and the caller of 'schedule' is (currently!) saved at offset 24
-		   in the frame of schedule (from disasm) */
-		schedule_caller_pc = *(unsigned long *) (long)(schedule_fp + 24);
-		return schedule_caller_pc;
-	}
-#endif
-	return pc;
-}
-
-/* Provide a /proc/asids file that lists out the
-   ASIDs currently associated with the processes.  (If the DM.PC register is
-   examined through the debug link, this shows ASID + PC.  To make use of this,
-   the PID->ASID relationship needs to be known.  This is primarily for
-   debugging.)
-   */
-
-#if defined(CONFIG_SH64_PROC_ASIDS)
-static int
-asids_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, void *data)
-{
-	int len=0;
-	struct task_struct *p;
-	read_lock(&tasklist_lock);
-	for_each_process(p) {
-		int pid = p->pid;
-		struct mm_struct *mm;
-		if (!pid) continue;
-		mm = p->mm;
-		if (mm) {
-			unsigned long asid, context;
-			context = mm->context;
-			asid = (context & 0xff);
-			len += sprintf(buf+len, "%5d : %02lx\n", pid, asid);
-		} else {
-			len += sprintf(buf+len, "%5d : (none)\n", pid);
-		}
-	}
-	read_unlock(&tasklist_lock);
-	*eof = 1;
-	return len;
-}
-
-static int __init register_proc_asids(void)
-{
-	create_proc_read_entry("asids", 0, NULL, asids_proc_info, NULL);
-	return 0;
-}
-__initcall(register_proc_asids);
-#endif
-- 
cgit v1.2.3-59-g8ed1b


From af3c7dfe822b598a2f977098101ed8b63cf0fdd1 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 9 Nov 2007 17:08:54 +0900
Subject: sh: Split out processor.h in to _32 and _64 variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile_64    |  21 ++++
 include/asm-sh/processor.h    | 247 +-----------------------------------
 include/asm-sh/processor_32.h | 248 ++++++++++++++++++++++++++++++++++++
 include/asm-sh/processor_64.h | 277 ++++++++++++++++++++++++++++++++++++++++
 include/asm-sh64/processor.h  | 287 ------------------------------------------
 5 files changed, 552 insertions(+), 528 deletions(-)
 create mode 100644 arch/sh/kernel/Makefile_64
 create mode 100644 include/asm-sh/processor_32.h
 create mode 100644 include/asm-sh/processor_64.h
 delete mode 100644 include/asm-sh64/processor.h

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
new file mode 100644
index 000000000000..7dd7de9ff3c0
--- /dev/null
+++ b/arch/sh/kernel/Makefile_64
@@ -0,0 +1,21 @@
+extra-y	:= head.o init_task.o vmlinux.lds
+
+obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
+	   ptrace.o semaphore.o setup.o signal.o sys_sh.o syscalls.o \
+	   time.o topology.o traps.o
+
+obj-y				+= cpu/ timers/
+obj-$(CONFIG_VSYSCALL)		+= vsyscall/
+obj-$(CONFIG_SMP)		+= smp.o
+obj-$(CONFIG_CF_ENABLER)	+= cf-enabler.o
+obj-$(CONFIG_SH_STANDARD_BIOS)	+= sh_bios.o
+obj-$(CONFIG_SH_KGDB)		+= kgdb_stub.o kgdb_jmp.o
+obj-$(CONFIG_SH_CPU_FREQ)	+= cpufreq.o
+obj-$(CONFIG_MODULES)		+= sh_ksyms.o module.o
+obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
+obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
+obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
+obj-$(CONFIG_PM)		+= pm.o
+obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h
index fda68480f377..bf01f486c3e1 100644
--- a/include/asm-sh/processor.h
+++ b/include/asm-sh/processor.h
@@ -1,31 +1,5 @@
-/*
- * include/asm-sh/processor.h
- *
- * Copyright (C) 1999, 2000  Niibe Yutaka
- * Copyright (C) 2002, 2003  Paul Mundt
- */
-
 #ifndef __ASM_SH_PROCESSOR_H
 #define __ASM_SH_PROCESSOR_H
-#ifdef __KERNEL__
-
-#include <linux/compiler.h>
-#include <asm/page.h>
-#include <asm/types.h>
-#include <asm/cache.h>
-#include <asm/ptrace.h>
-#include <asm/cpu-features.h>
-
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ void *pc; __asm__("mova	1f, %0\n1:":"=z" (pc)); pc; })
-
-/* Core Processor Version Register */
-#define CCN_PVR		0xff000030
-#define CCN_CVR		0xff000040
-#define CCN_PRR		0xff000044
 
 /*
  *  CPU type and hardware bug flags. Kept separately for each CPU.
@@ -57,229 +31,20 @@ enum cpu_type {
 	/* SH4AL-DSP types */
 	CPU_SH7343, CPU_SH7722,
 
+	/* SH-5 types */
+        CPU_SH5_101, CPU_SH5_103,
+
 	/* Unknown subtype */
 	CPU_SH_NONE
 };
 
-struct sh_cpuinfo {
-	unsigned int type;
-	unsigned long loops_per_jiffy;
-	unsigned long asid_cache;
-
-	struct cache_info icache;	/* Primary I-cache */
-	struct cache_info dcache;	/* Primary D-cache */
-	struct cache_info scache;	/* Secondary cache */
-
-	unsigned long flags;
-} __attribute__ ((aligned(L1_CACHE_BYTES)));
-
-extern struct sh_cpuinfo cpu_data[];
-#define boot_cpu_data cpu_data[0]
-#define current_cpu_data cpu_data[smp_processor_id()]
-#define raw_current_cpu_data cpu_data[raw_smp_processor_id()]
-
-/*
- * User space process size: 2GB.
- *
- * Since SH7709 and SH7750 have "area 7", we can't use 0x7c000000--0x7fffffff
- */
-#define TASK_SIZE	0x7c000000UL
-
-/* This decides where the kernel will search for a free chunk of vm
- * space during mmap's.
- */
-#define TASK_UNMAPPED_BASE	(TASK_SIZE / 3)
-
-/*
- * Bit of SR register
- *
- * FD-bit:
- *     When it's set, it means the processor doesn't have right to use FPU,
- *     and it results exception when the floating operation is executed.
- *
- * IMASK-bit:
- *     Interrupt level mask
- */
-#define SR_FD		0x00008000
-#define SR_DSP		0x00001000
-#define SR_IMASK	0x000000f0
-
-/*
- * FPU structure and data
- */
-
-struct sh_fpu_hard_struct {
-	unsigned long fp_regs[16];
-	unsigned long xfp_regs[16];
-	unsigned long fpscr;
-	unsigned long fpul;
-
-	long status; /* software status information */
-};
-
-/* Dummy fpu emulator  */
-struct sh_fpu_soft_struct {
-	unsigned long fp_regs[16];
-	unsigned long xfp_regs[16];
-	unsigned long fpscr;
-	unsigned long fpul;
-
-	unsigned char lookahead;
-	unsigned long entry_pc;
-};
-
-union sh_fpu_union {
-	struct sh_fpu_hard_struct hard;
-	struct sh_fpu_soft_struct soft;
-};
-
-struct thread_struct {
-	/* Saved registers when thread is descheduled */
-	unsigned long sp;
-	unsigned long pc;
-
-	/* Hardware debugging registers */
-	unsigned long ubc_pc;
-
-	/* floating point info */
-	union sh_fpu_union fpu;
-};
-
-typedef struct {
-	unsigned long seg;
-} mm_segment_t;
-
-/* Count of active tasks with UBC settings */
-extern int ubc_usercnt;
-
-#define INIT_THREAD  {						\
-	.sp = sizeof(init_stack) + (long) &init_stack,		\
-}
-
-/*
- * Do necessary setup to start up a newly executed thread.
- */
-#define start_thread(regs, new_pc, new_sp)	 \
-	set_fs(USER_DS);			 \
-	regs->pr = 0;				 \
-	regs->sr = SR_FD;	/* User mode. */ \
-	regs->pc = new_pc;			 \
-	regs->regs[15] = new_sp
-
-/* Forward declaration, a strange C thing */
-struct task_struct;
-struct mm_struct;
-
-/* Free all resources held by a thread. */
-extern void release_thread(struct task_struct *);
-
-/* Prepare to copy thread state - unlazy all lazy status */
-#define prepare_to_copy(tsk)	do { } while (0)
-
-/*
- * create a kernel thread without removing it from tasklists
- */
-extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
-
-/* Copy and release all segment info associated with a VM */
-#define copy_segments(p, mm)	do { } while(0)
-#define release_segments(mm)	do { } while(0)
-
-/*
- * FPU lazy state save handling.
- */
-
-static __inline__ void disable_fpu(void)
-{
-	unsigned long __dummy;
-
-	/* Set FD flag in SR */
-	__asm__ __volatile__("stc	sr, %0\n\t"
-			     "or	%1, %0\n\t"
-			     "ldc	%0, sr"
-			     : "=&r" (__dummy)
-			     : "r" (SR_FD));
-}
-
-static __inline__ void enable_fpu(void)
-{
-	unsigned long __dummy;
-
-	/* Clear out FD flag in SR */
-	__asm__ __volatile__("stc	sr, %0\n\t"
-			     "and	%1, %0\n\t"
-			     "ldc	%0, sr"
-			     : "=&r" (__dummy)
-			     : "r" (~SR_FD));
-}
-
-static __inline__ void release_fpu(struct pt_regs *regs)
-{
-	regs->sr |= SR_FD;
-}
-
-static __inline__ void grab_fpu(struct pt_regs *regs)
-{
-	regs->sr &= ~SR_FD;
-}
-
-extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs);
-
-#define unlazy_fpu(tsk, regs) do {			\
-	if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {	\
-		save_fpu(tsk, regs);			\
-	}						\
-} while (0)
-
-#define clear_fpu(tsk, regs) do {				\
-	if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {		\
-		clear_tsk_thread_flag(tsk, TIF_USEDFPU);	\
-		release_fpu(regs);				\
-	}							\
-} while (0)
-
-/* Double presision, NANS as NANS, rounding to nearest, no exceptions */
-#define FPSCR_INIT  0x00080000
-
-#define	FPSCR_CAUSE_MASK	0x0001f000	/* Cause bits */
-#define	FPSCR_FLAG_MASK		0x0000007c	/* Flag bits */
-
-/*
- * Return saved PC of a blocked thread.
- */
-#define thread_saved_pc(tsk)	(tsk->thread.pc)
-
-void show_trace(struct task_struct *tsk, unsigned long *sp,
-		struct pt_regs *regs);
-extern unsigned long get_wchan(struct task_struct *p);
-
-#define KSTK_EIP(tsk)  (task_pt_regs(tsk)->pc)
-#define KSTK_ESP(tsk)  (task_pt_regs(tsk)->regs[15])
-
-#define cpu_sleep()	__asm__ __volatile__ ("sleep" : : : "memory")
-#define cpu_relax()	barrier()
-
-#if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH3) || \
-    defined(CONFIG_CPU_SH4)
-#define PREFETCH_STRIDE		L1_CACHE_BYTES
-#define ARCH_HAS_PREFETCH
-#define ARCH_HAS_PREFETCHW
-static inline void prefetch(void *x)
-{
-	__asm__ __volatile__ ("pref @%0\n\t" : : "r" (x) : "memory");
-}
-
-#define prefetchw(x)	prefetch(x)
-#endif
-
-#ifdef CONFIG_VSYSCALL
-extern int vsyscall_init(void);
+#ifdef CONFIG_SUPERH32
+# include "processor_32.h"
 #else
-#define vsyscall_init() do { } while (0)
+# include "processor_64.h"
 #endif
 
 /* arch/sh/kernel/setup.c */
 const char *get_cpu_subtype(struct sh_cpuinfo *c);
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_PROCESSOR_H */
diff --git a/include/asm-sh/processor_32.h b/include/asm-sh/processor_32.h
new file mode 100644
index 000000000000..e10d0ee0c22b
--- /dev/null
+++ b/include/asm-sh/processor_32.h
@@ -0,0 +1,248 @@
+/*
+ * include/asm-sh/processor.h
+ *
+ * Copyright (C) 1999, 2000  Niibe Yutaka
+ * Copyright (C) 2002, 2003  Paul Mundt
+ */
+
+#ifndef __ASM_SH_PROCESSOR_32_H
+#define __ASM_SH_PROCESSOR_32_H
+#ifdef __KERNEL__
+
+#include <linux/compiler.h>
+#include <asm/page.h>
+#include <asm/types.h>
+#include <asm/cache.h>
+#include <asm/ptrace.h>
+#include <asm/cpu-features.h>
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+#define current_text_addr() ({ void *pc; __asm__("mova	1f, %0\n1:":"=z" (pc)); pc; })
+
+/* Core Processor Version Register */
+#define CCN_PVR		0xff000030
+#define CCN_CVR		0xff000040
+#define CCN_PRR		0xff000044
+
+struct sh_cpuinfo {
+	unsigned int type;
+	unsigned long loops_per_jiffy;
+	unsigned long asid_cache;
+
+	struct cache_info icache;	/* Primary I-cache */
+	struct cache_info dcache;	/* Primary D-cache */
+	struct cache_info scache;	/* Secondary cache */
+
+	unsigned long flags;
+} __attribute__ ((aligned(L1_CACHE_BYTES)));
+
+extern struct sh_cpuinfo cpu_data[];
+#define boot_cpu_data cpu_data[0]
+#define current_cpu_data cpu_data[smp_processor_id()]
+#define raw_current_cpu_data cpu_data[raw_smp_processor_id()]
+
+/*
+ * User space process size: 2GB.
+ *
+ * Since SH7709 and SH7750 have "area 7", we can't use 0x7c000000--0x7fffffff
+ */
+#define TASK_SIZE	0x7c000000UL
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE	(TASK_SIZE / 3)
+
+/*
+ * Bit of SR register
+ *
+ * FD-bit:
+ *     When it's set, it means the processor doesn't have right to use FPU,
+ *     and it results exception when the floating operation is executed.
+ *
+ * IMASK-bit:
+ *     Interrupt level mask
+ */
+#define SR_FD		0x00008000
+#define SR_DSP		0x00001000
+#define SR_IMASK	0x000000f0
+
+/*
+ * FPU structure and data
+ */
+
+struct sh_fpu_hard_struct {
+	unsigned long fp_regs[16];
+	unsigned long xfp_regs[16];
+	unsigned long fpscr;
+	unsigned long fpul;
+
+	long status; /* software status information */
+};
+
+/* Dummy fpu emulator  */
+struct sh_fpu_soft_struct {
+	unsigned long fp_regs[16];
+	unsigned long xfp_regs[16];
+	unsigned long fpscr;
+	unsigned long fpul;
+
+	unsigned char lookahead;
+	unsigned long entry_pc;
+};
+
+union sh_fpu_union {
+	struct sh_fpu_hard_struct hard;
+	struct sh_fpu_soft_struct soft;
+};
+
+struct thread_struct {
+	/* Saved registers when thread is descheduled */
+	unsigned long sp;
+	unsigned long pc;
+
+	/* Hardware debugging registers */
+	unsigned long ubc_pc;
+
+	/* floating point info */
+	union sh_fpu_union fpu;
+};
+
+typedef struct {
+	unsigned long seg;
+} mm_segment_t;
+
+/* Count of active tasks with UBC settings */
+extern int ubc_usercnt;
+
+#define INIT_THREAD  {						\
+	.sp = sizeof(init_stack) + (long) &init_stack,		\
+}
+
+/*
+ * Do necessary setup to start up a newly executed thread.
+ */
+#define start_thread(regs, new_pc, new_sp)	 \
+	set_fs(USER_DS);			 \
+	regs->pr = 0;				 \
+	regs->sr = SR_FD;	/* User mode. */ \
+	regs->pc = new_pc;			 \
+	regs->regs[15] = new_sp
+
+/* Forward declaration, a strange C thing */
+struct task_struct;
+struct mm_struct;
+
+/* Free all resources held by a thread. */
+extern void release_thread(struct task_struct *);
+
+/* Prepare to copy thread state - unlazy all lazy status */
+#define prepare_to_copy(tsk)	do { } while (0)
+
+/*
+ * create a kernel thread without removing it from tasklists
+ */
+extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
+
+/* Copy and release all segment info associated with a VM */
+#define copy_segments(p, mm)	do { } while(0)
+#define release_segments(mm)	do { } while(0)
+
+/*
+ * FPU lazy state save handling.
+ */
+
+static __inline__ void disable_fpu(void)
+{
+	unsigned long __dummy;
+
+	/* Set FD flag in SR */
+	__asm__ __volatile__("stc	sr, %0\n\t"
+			     "or	%1, %0\n\t"
+			     "ldc	%0, sr"
+			     : "=&r" (__dummy)
+			     : "r" (SR_FD));
+}
+
+static __inline__ void enable_fpu(void)
+{
+	unsigned long __dummy;
+
+	/* Clear out FD flag in SR */
+	__asm__ __volatile__("stc	sr, %0\n\t"
+			     "and	%1, %0\n\t"
+			     "ldc	%0, sr"
+			     : "=&r" (__dummy)
+			     : "r" (~SR_FD));
+}
+
+static __inline__ void release_fpu(struct pt_regs *regs)
+{
+	regs->sr |= SR_FD;
+}
+
+static __inline__ void grab_fpu(struct pt_regs *regs)
+{
+	regs->sr &= ~SR_FD;
+}
+
+extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs);
+
+#define unlazy_fpu(tsk, regs) do {			\
+	if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {	\
+		save_fpu(tsk, regs);			\
+	}						\
+} while (0)
+
+#define clear_fpu(tsk, regs) do {				\
+	if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {		\
+		clear_tsk_thread_flag(tsk, TIF_USEDFPU);	\
+		release_fpu(regs);				\
+	}							\
+} while (0)
+
+/* Double presision, NANS as NANS, rounding to nearest, no exceptions */
+#define FPSCR_INIT  0x00080000
+
+#define	FPSCR_CAUSE_MASK	0x0001f000	/* Cause bits */
+#define	FPSCR_FLAG_MASK		0x0000007c	/* Flag bits */
+
+/*
+ * Return saved PC of a blocked thread.
+ */
+#define thread_saved_pc(tsk)	(tsk->thread.pc)
+
+void show_trace(struct task_struct *tsk, unsigned long *sp,
+		struct pt_regs *regs);
+extern unsigned long get_wchan(struct task_struct *p);
+
+#define KSTK_EIP(tsk)  (task_pt_regs(tsk)->pc)
+#define KSTK_ESP(tsk)  (task_pt_regs(tsk)->regs[15])
+
+#define cpu_sleep()	__asm__ __volatile__ ("sleep" : : : "memory")
+#define cpu_relax()	barrier()
+
+#if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH3) || \
+    defined(CONFIG_CPU_SH4)
+#define PREFETCH_STRIDE		L1_CACHE_BYTES
+#define ARCH_HAS_PREFETCH
+#define ARCH_HAS_PREFETCHW
+static inline void prefetch(void *x)
+{
+	__asm__ __volatile__ ("pref @%0\n\t" : : "r" (x) : "memory");
+}
+
+#define prefetchw(x)	prefetch(x)
+#endif
+
+#ifdef CONFIG_VSYSCALL
+extern int vsyscall_init(void);
+#else
+#define vsyscall_init() do { } while (0)
+#endif
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_SH_PROCESSOR_32_H */
diff --git a/include/asm-sh/processor_64.h b/include/asm-sh/processor_64.h
new file mode 100644
index 000000000000..5430e437b915
--- /dev/null
+++ b/include/asm-sh/processor_64.h
@@ -0,0 +1,277 @@
+#ifndef __ASM_SH_PROCESSOR_64_H
+#define __ASM_SH_PROCESSOR_64_H
+
+/*
+ * include/asm-sh/processor_64.h
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003  Paul Mundt
+ * Copyright (C) 2004  Richard Curnow
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASSEMBLY__
+
+#include <linux/compiler.h>
+#include <asm/page.h>
+#include <asm/types.h>
+#include <asm/cache.h>
+#include <asm/cpu/registers.h>
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+#define current_text_addr() ({ \
+void *pc; \
+unsigned long long __dummy = 0; \
+__asm__("gettr	tr0, %1\n\t" \
+	"pta	4, tr0\n\t" \
+	"gettr	tr0, %0\n\t" \
+	"ptabs	%1, tr0\n\t"	\
+	:"=r" (pc), "=r" (__dummy) \
+	: "1" (__dummy)); \
+pc; })
+
+/*
+ * TLB information structure
+ *
+ * Defined for both I and D tlb, per-processor.
+ */
+struct tlb_info {
+	unsigned long long next;
+	unsigned long long first;
+	unsigned long long last;
+
+	unsigned int entries;
+	unsigned int step;
+
+	unsigned long flags;
+};
+
+struct sh_cpuinfo {
+	enum cpu_type type;
+	unsigned long loops_per_jiffy;
+
+	char	hard_math;
+
+	unsigned long *pgd_quick;
+	unsigned long *pmd_quick;
+	unsigned long *pte_quick;
+	unsigned long pgtable_cache_sz;
+	unsigned int cpu_clock, master_clock, bus_clock, module_clock;
+
+	/* Cache info */
+	struct cache_info icache;
+	struct cache_info dcache;
+
+	/* TLB info */
+	struct tlb_info itlb;
+	struct tlb_info dtlb;
+};
+
+extern struct sh_cpuinfo boot_cpu_data;
+
+#define cpu_data (&boot_cpu_data)
+#define current_cpu_data boot_cpu_data
+
+#endif
+
+/*
+ * User space process size: 2GB - 4k.
+ */
+#define TASK_SIZE	0x7ffff000UL
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE	(TASK_SIZE / 3)
+
+/*
+ * Bit of SR register
+ *
+ * FD-bit:
+ *     When it's set, it means the processor doesn't have right to use FPU,
+ *     and it results exception when the floating operation is executed.
+ *
+ * IMASK-bit:
+ *     Interrupt level mask
+ *
+ * STEP-bit:
+ *     Single step bit
+ *
+ */
+#define SR_FD    0x00008000
+
+#if defined(CONFIG_SH64_SR_WATCH)
+#define SR_MMU   0x84000000
+#else
+#define SR_MMU   0x80000000
+#endif
+
+#define SR_IMASK 0x000000f0
+#define SR_SSTEP 0x08000000
+
+#ifndef __ASSEMBLY__
+
+/*
+ * FPU structure and data : require 8-byte alignment as we need to access it
+   with fld.p, fst.p
+ */
+
+struct sh_fpu_hard_struct {
+	unsigned long fp_regs[64];
+	unsigned int fpscr;
+	/* long status; * software status information */
+};
+
+#if 0
+/* Dummy fpu emulator  */
+struct sh_fpu_soft_struct {
+	unsigned long long fp_regs[32];
+	unsigned int fpscr;
+	unsigned char lookahead;
+	unsigned long entry_pc;
+};
+#endif
+
+union sh_fpu_union {
+	struct sh_fpu_hard_struct hard;
+	/* 'hard' itself only produces 32 bit alignment, yet we need
+	   to access it using 64 bit load/store as well. */
+	unsigned long long alignment_dummy;
+};
+
+struct thread_struct {
+	unsigned long sp;
+	unsigned long pc;
+	/* This stores the address of the pt_regs built during a context
+	   switch, or of the register save area built for a kernel mode
+	   exception.  It is used for backtracing the stack of a sleeping task
+	   or one that traps in kernel mode. */
+        struct pt_regs *kregs;
+	/* This stores the address of the pt_regs constructed on entry from
+	   user mode.  It is a fixed value over the lifetime of a process, or
+	   NULL for a kernel thread. */
+	struct pt_regs *uregs;
+
+	unsigned long trap_no, error_code;
+	unsigned long address;
+	/* Hardware debugging registers may come here */
+
+	/* floating point info */
+	union sh_fpu_union fpu;
+};
+
+typedef struct {
+	unsigned long seg;
+} mm_segment_t;
+
+#define INIT_MMAP \
+{ &init_mm, 0, 0, NULL, PAGE_SHARED, VM_READ | VM_WRITE | VM_EXEC, 1, NULL, NULL }
+
+extern  struct pt_regs fake_swapper_regs;
+
+#define INIT_THREAD  {				\
+	.sp		= sizeof(init_stack) +	\
+			  (long) &init_stack,	\
+	.pc		= 0,			\
+        .kregs		= &fake_swapper_regs,	\
+	.uregs	        = NULL,			\
+	.trap_no	= 0,			\
+	.error_code	= 0,			\
+	.address	= 0,			\
+	.fpu		= { { { 0, } }, }	\
+}
+
+/*
+ * Do necessary setup to start up a newly executed thread.
+ */
+#define SR_USER (SR_MMU | SR_FD)
+
+#define start_thread(regs, new_pc, new_sp)			\
+	set_fs(USER_DS);					\
+	regs->sr = SR_USER;	/* User mode. */		\
+	regs->pc = new_pc - 4;	/* Compensate syscall exit */	\
+	regs->pc |= 1;		/* Set SHmedia ! */		\
+	regs->regs[18] = 0;					\
+	regs->regs[15] = new_sp
+
+/* Forward declaration, a strange C thing */
+struct task_struct;
+struct mm_struct;
+
+/* Free all resources held by a thread. */
+extern void release_thread(struct task_struct *);
+/*
+ * create a kernel thread without removing it from tasklists
+ */
+extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
+
+
+/* Copy and release all segment info associated with a VM */
+#define copy_segments(p, mm)	do { } while (0)
+#define release_segments(mm)	do { } while (0)
+#define forget_segments()	do { } while (0)
+#define prepare_to_copy(tsk)	do { } while (0)
+/*
+ * FPU lazy state save handling.
+ */
+
+static inline void release_fpu(void)
+{
+	unsigned long long __dummy;
+
+	/* Set FD flag in SR */
+	__asm__ __volatile__("getcon	" __SR ", %0\n\t"
+			     "or	%0, %1, %0\n\t"
+			     "putcon	%0, " __SR "\n\t"
+			     : "=&r" (__dummy)
+			     : "r" (SR_FD));
+}
+
+static inline void grab_fpu(void)
+{
+	unsigned long long __dummy;
+
+	/* Clear out FD flag in SR */
+	__asm__ __volatile__("getcon	" __SR ", %0\n\t"
+			     "and	%0, %1, %0\n\t"
+			     "putcon	%0, " __SR "\n\t"
+			     : "=&r" (__dummy)
+			     : "r" (~SR_FD));
+}
+
+/* Round to nearest, no exceptions on inexact, overflow, underflow,
+   zero-divide, invalid.  Configure option for whether to flush denorms to
+   zero, or except if a denorm is encountered.  */
+#if defined(CONFIG_SH64_FPU_DENORM_FLUSH)
+#define FPSCR_INIT  0x00040000
+#else
+#define FPSCR_INIT  0x00000000
+#endif
+
+/* Save the current FP regs */
+void fpsave(struct sh_fpu_hard_struct *fpregs);
+
+/* Initialise the FP state of a task */
+void fpinit(struct sh_fpu_hard_struct *fpregs);
+
+extern struct task_struct *last_task_used_math;
+
+/*
+ * Return saved PC of a blocked thread.
+ */
+#define thread_saved_pc(tsk)	(tsk->thread.pc)
+
+extern unsigned long get_wchan(struct task_struct *p);
+
+#define KSTK_EIP(tsk)  ((tsk)->thread.pc)
+#define KSTK_ESP(tsk)  ((tsk)->thread.sp)
+
+#define cpu_relax()	barrier()
+
+#endif	/* __ASSEMBLY__ */
+#endif /* __ASM_SH_PROCESSOR_64_H */
diff --git a/include/asm-sh64/processor.h b/include/asm-sh64/processor.h
deleted file mode 100644
index eb2bee4b47b9..000000000000
--- a/include/asm-sh64/processor.h
+++ /dev/null
@@ -1,287 +0,0 @@
-#ifndef __ASM_SH64_PROCESSOR_H
-#define __ASM_SH64_PROCESSOR_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/processor.h
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003  Paul Mundt
- * Copyright (C) 2004  Richard Curnow
- *
- */
-
-#include <asm/page.h>
-
-#ifndef __ASSEMBLY__
-
-#include <asm/types.h>
-#include <asm/cache.h>
-#include <asm/registers.h>
-#include <linux/threads.h>
-#include <linux/compiler.h>
-
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ \
-void *pc; \
-unsigned long long __dummy = 0; \
-__asm__("gettr	tr0, %1\n\t" \
-	"pta	4, tr0\n\t" \
-	"gettr	tr0, %0\n\t" \
-	"ptabs	%1, tr0\n\t"	\
-	:"=r" (pc), "=r" (__dummy) \
-	: "1" (__dummy)); \
-pc; })
-
-/*
- *  CPU type and hardware bug flags. Kept separately for each CPU.
- */
-enum cpu_type {
-	CPU_SH5_101,
-	CPU_SH5_103,
-	CPU_SH_NONE
-};
-
-/*
- * TLB information structure
- *
- * Defined for both I and D tlb, per-processor.
- */
-struct tlb_info {
-	unsigned long long next;
-	unsigned long long first;
-	unsigned long long last;
-
-	unsigned int entries;
-	unsigned int step;
-
-	unsigned long flags;
-};
-
-struct sh_cpuinfo {
-	enum cpu_type type;
-	unsigned long loops_per_jiffy;
-
-	char	hard_math;
-
-	unsigned long *pgd_quick;
-	unsigned long *pmd_quick;
-	unsigned long *pte_quick;
-	unsigned long pgtable_cache_sz;
-	unsigned int cpu_clock, master_clock, bus_clock, module_clock;
-
-	/* Cache info */
-	struct cache_info icache;
-	struct cache_info dcache;
-
-	/* TLB info */
-	struct tlb_info itlb;
-	struct tlb_info dtlb;
-};
-
-extern struct sh_cpuinfo boot_cpu_data;
-
-#define cpu_data (&boot_cpu_data)
-#define current_cpu_data boot_cpu_data
-
-#endif
-
-/*
- * User space process size: 2GB - 4k.
- */
-#define TASK_SIZE	0x7ffff000UL
-
-/* This decides where the kernel will search for a free chunk of vm
- * space during mmap's.
- */
-#define TASK_UNMAPPED_BASE	(TASK_SIZE / 3)
-
-/*
- * Bit of SR register
- *
- * FD-bit:
- *     When it's set, it means the processor doesn't have right to use FPU,
- *     and it results exception when the floating operation is executed.
- *
- * IMASK-bit:
- *     Interrupt level mask
- *
- * STEP-bit:
- *     Single step bit
- *
- */
-#define SR_FD    0x00008000
-
-#if defined(CONFIG_SH64_SR_WATCH)
-#define SR_MMU   0x84000000
-#else
-#define SR_MMU   0x80000000
-#endif
-
-#define SR_IMASK 0x000000f0
-#define SR_SSTEP 0x08000000
-
-#ifndef __ASSEMBLY__
-
-/*
- * FPU structure and data : require 8-byte alignment as we need to access it
-   with fld.p, fst.p
- */
-
-struct sh_fpu_hard_struct {
-	unsigned long fp_regs[64];
-	unsigned int fpscr;
-	/* long status; * software status information */
-};
-
-#if 0
-/* Dummy fpu emulator  */
-struct sh_fpu_soft_struct {
-	unsigned long long fp_regs[32];
-	unsigned int fpscr;
-	unsigned char lookahead;
-	unsigned long entry_pc;
-};
-#endif
-
-union sh_fpu_union {
-	struct sh_fpu_hard_struct hard;
-	/* 'hard' itself only produces 32 bit alignment, yet we need
-	   to access it using 64 bit load/store as well. */
-	unsigned long long alignment_dummy;
-};
-
-struct thread_struct {
-	unsigned long sp;
-	unsigned long pc;
-	/* This stores the address of the pt_regs built during a context
-	   switch, or of the register save area built for a kernel mode
-	   exception.  It is used for backtracing the stack of a sleeping task
-	   or one that traps in kernel mode. */
-        struct pt_regs *kregs;
-	/* This stores the address of the pt_regs constructed on entry from
-	   user mode.  It is a fixed value over the lifetime of a process, or
-	   NULL for a kernel thread. */
-	struct pt_regs *uregs;
-
-	unsigned long trap_no, error_code;
-	unsigned long address;
-	/* Hardware debugging registers may come here */
-
-	/* floating point info */
-	union sh_fpu_union fpu;
-};
-
-#define INIT_MMAP \
-{ &init_mm, 0, 0, NULL, PAGE_SHARED, VM_READ | VM_WRITE | VM_EXEC, 1, NULL, NULL }
-
-extern  struct pt_regs fake_swapper_regs;
-
-#define INIT_THREAD  {				\
-	.sp		= sizeof(init_stack) +	\
-			  (long) &init_stack,	\
-	.pc		= 0,			\
-        .kregs		= &fake_swapper_regs,	\
-	.uregs	        = NULL,			\
-	.trap_no	= 0,			\
-	.error_code	= 0,			\
-	.address	= 0,			\
-	.fpu		= { { { 0, } }, }	\
-}
-
-/*
- * Do necessary setup to start up a newly executed thread.
- */
-#define SR_USER (SR_MMU | SR_FD)
-
-#define start_thread(regs, new_pc, new_sp) 	 		\
-	set_fs(USER_DS);			 		\
-	regs->sr = SR_USER;	/* User mode. */ 		\
-	regs->pc = new_pc - 4;	/* Compensate syscall exit */	\
-	regs->pc |= 1;		/* Set SHmedia ! */		\
-	regs->regs[18] = 0;   		 	 		\
-	regs->regs[15] = new_sp
-
-/* Forward declaration, a strange C thing */
-struct task_struct;
-struct mm_struct;
-
-/* Free all resources held by a thread. */
-extern void release_thread(struct task_struct *);
-/*
- * create a kernel thread without removing it from tasklists
- */
-extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
-
-
-/* Copy and release all segment info associated with a VM */
-#define copy_segments(p, mm)	do { } while (0)
-#define release_segments(mm)	do { } while (0)
-#define forget_segments()	do { } while (0)
-#define prepare_to_copy(tsk)	do { } while (0)
-/*
- * FPU lazy state save handling.
- */
-
-static inline void release_fpu(void)
-{
-	unsigned long long __dummy;
-
-	/* Set FD flag in SR */
-	__asm__ __volatile__("getcon	" __SR ", %0\n\t"
-			     "or	%0, %1, %0\n\t"
-			     "putcon	%0, " __SR "\n\t"
-			     : "=&r" (__dummy)
-			     : "r" (SR_FD));
-}
-
-static inline void grab_fpu(void)
-{
-	unsigned long long __dummy;
-
-	/* Clear out FD flag in SR */
-	__asm__ __volatile__("getcon	" __SR ", %0\n\t"
-			     "and	%0, %1, %0\n\t"
-			     "putcon	%0, " __SR "\n\t"
-			     : "=&r" (__dummy)
-			     : "r" (~SR_FD));
-}
-
-/* Round to nearest, no exceptions on inexact, overflow, underflow,
-   zero-divide, invalid.  Configure option for whether to flush denorms to
-   zero, or except if a denorm is encountered.  */
-#if defined(CONFIG_SH64_FPU_DENORM_FLUSH)
-#define FPSCR_INIT  0x00040000
-#else
-#define FPSCR_INIT  0x00000000
-#endif
-
-/* Save the current FP regs */
-void fpsave(struct sh_fpu_hard_struct *fpregs);
-
-/* Initialise the FP state of a task */
-void fpinit(struct sh_fpu_hard_struct *fpregs);
-
-extern struct task_struct *last_task_used_math;
-
-/*
- * Return saved PC of a blocked thread.
- */
-#define thread_saved_pc(tsk)	(tsk->thread.pc)
-
-extern unsigned long get_wchan(struct task_struct *p);
-
-#define KSTK_EIP(tsk)  ((tsk)->thread.pc)
-#define KSTK_ESP(tsk)  ((tsk)->thread.sp)
-
-#define cpu_relax()	barrier()
-
-#endif	/* __ASSEMBLY__ */
-#endif /* __ASM_SH64_PROCESSOR_H */
-
-- 
cgit v1.2.3-59-g8ed1b


From 36bcd39dbca824daffe16d607ae574b6edc7d31a Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sat, 10 Nov 2007 19:16:55 +0900
Subject: sh: Split out 29-bit and 32-bit physical mode definitions.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/Kconfig       | 11 +++++++++++
 arch/sh/mm/Makefile      |  2 +-
 include/asm-sh/pgtable.h | 17 +++++++++++++++++
 3 files changed, 29 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index a7bbc2cbbf8c..8192c872a69a 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -46,9 +46,20 @@ config MEMORY_SIZE
 	  as 0x00400000 which was the default value before this became
 	  configurable.
 
+# Physical addressing modes
+
+config 29BIT
+	def_bool !32BIT
+	depends on SUPERH32
+
 config 32BIT
+	bool
+	default y if CPU_SH5
+
+config PMB
 	bool "Support 32-bit physical addressing through PMB"
 	depends on MMU && (CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785)
+	select 32BIT
 	default y
 	help
 	  If you say Y here, physical addressing will be extended to
diff --git a/arch/sh/mm/Makefile b/arch/sh/mm/Makefile
index aa44607f072d..d35caccd0aaa 100644
--- a/arch/sh/mm/Makefile
+++ b/arch/sh/mm/Makefile
@@ -31,7 +31,7 @@ endif
 endif
 
 obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o
-obj-$(CONFIG_32BIT)		+= pmb.o
+obj-$(CONFIG_PMB)		+= pmb.o
 obj-$(CONFIG_NUMA)		+= numa.o
 
 EXTRA_CFLAGS += -Werror
diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h
index 8f1e8be8d15d..6ab3ba82d255 100644
--- a/include/asm-sh/pgtable.h
+++ b/include/asm-sh/pgtable.h
@@ -28,6 +28,23 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 
 #endif /* !__ASSEMBLY__ */
 
+/*
+ * Effective and physical address definitions, to aid with sign
+ * extension.
+ */
+#define NEFF		32
+#define	NEFF_SIGN	(1LL << (NEFF - 1))
+#define	NEFF_MASK	(-1LL << NEFF)
+
+#ifdef CONFIG_29BIT
+#define NPHYS		29
+#else
+#define NPHYS		32
+#endif
+
+#define	NPHYS_SIGN	(1LL << (NPHYS - 1))
+#define	NPHYS_MASK	(-1LL << NPHYS)
+
 /*
  * traditional two-level paging structure
  */
-- 
cgit v1.2.3-59-g8ed1b


From 48b22cf993cbc8f62c9b4025cfe0cfccd800181a Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sat, 10 Nov 2007 19:53:31 +0900
Subject: sh: Move in the SH-5 ptrace impl.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile_32 |   2 +-
 arch/sh/kernel/Makefile_64 |   2 +-
 arch/sh/kernel/ptrace.c    | 274 -------------------------------------
 arch/sh/kernel/ptrace_32.c | 274 +++++++++++++++++++++++++++++++++++++
 arch/sh/kernel/ptrace_64.c | 332 +++++++++++++++++++++++++++++++++++++++++++++
 arch/sh64/kernel/ptrace.c  | 332 ---------------------------------------------
 6 files changed, 608 insertions(+), 608 deletions(-)
 delete mode 100644 arch/sh/kernel/ptrace.c
 create mode 100644 arch/sh/kernel/ptrace_32.c
 create mode 100644 arch/sh/kernel/ptrace_64.c
 delete mode 100644 arch/sh64/kernel/ptrace.c

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index 9864be64b226..54b5a2da562e 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/arch/sh/kernel/Makefile_32
@@ -5,7 +5,7 @@
 extra-y	:= head.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_32.o \
-	   ptrace.o semaphore.o setup.o signal.o sys_sh.o syscalls.o \
+	   ptrace_32.o semaphore.o setup.o signal.o sys_sh.o syscalls.o \
 	   time.o topology.o traps.o
 
 obj-y				+= cpu/ timers/
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index 7dd7de9ff3c0..7dc995d6fdeb 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/arch/sh/kernel/Makefile_64
@@ -1,7 +1,7 @@
 extra-y	:= head.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
-	   ptrace.o semaphore.o setup.o signal.o sys_sh.o syscalls.o \
+	   ptrace_64.o semaphore.o setup.o signal.o sys_sh.o syscalls.o \
 	   time.o topology.o traps.o
 
 obj-y				+= cpu/ timers/
diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c
deleted file mode 100644
index ac725f0aeb72..000000000000
--- a/arch/sh/kernel/ptrace.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * linux/arch/sh/kernel/ptrace.c
- *
- * Original x86 implementation:
- *	By Ross Biro 1/23/92
- *	edited by Linus Torvalds
- *
- * SuperH version:   Copyright (C) 1999, 2000  Kaz Kojima & Niibe Yutaka
- *
- */
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/slab.h>
-#include <linux/security.h>
-#include <linux/signal.h>
-#include <linux/io.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/mmu_context.h>
-
-/*
- * does not yet catch signals sent when the child dies.
- * in exit.c or in signal.c.
- */
-
-/*
- * This routine will get a word off of the process kernel stack.
- */
-static inline int get_stack_long(struct task_struct *task, int offset)
-{
-	unsigned char *stack;
-
-	stack = (unsigned char *)task_pt_regs(task);
-	stack += offset;
-	return (*((int *)stack));
-}
-
-/*
- * This routine will put a word on the process kernel stack.
- */
-static inline int put_stack_long(struct task_struct *task, int offset,
-				 unsigned long data)
-{
-	unsigned char *stack;
-
-	stack = (unsigned char *)task_pt_regs(task);
-	stack += offset;
-	*(unsigned long *) stack = data;
-	return 0;
-}
-
-static void ptrace_disable_singlestep(struct task_struct *child)
-{
-	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
-
-	/*
-	 * Ensure the UBC is not programmed at the next context switch.
-	 *
-	 * Normally this is not needed but there are sequences such as
-	 * singlestep, signal delivery, and continue that leave the
-	 * ubc_pc non-zero leading to spurious SIGTRAPs.
-	 */
-	if (child->thread.ubc_pc != 0) {
-		ubc_usercnt -= 1;
-		child->thread.ubc_pc = 0;
-	}
-}
-
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure single step bits etc are not set.
- */
-void ptrace_disable(struct task_struct *child)
-{
-	ptrace_disable_singlestep(child);
-}
-
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
-{
-	struct user * dummy = NULL;
-	int ret;
-
-	switch (request) {
-	/* when I and D space are separate, these will need to be fixed. */
-	case PTRACE_PEEKTEXT: /* read word at location addr. */
-	case PTRACE_PEEKDATA:
-		ret = generic_ptrace_peekdata(child, addr, data);
-		break;
-
-	/* read the word at location addr in the USER area. */
-	case PTRACE_PEEKUSR: {
-		unsigned long tmp;
-
-		ret = -EIO;
-		if ((addr & 3) || addr < 0 ||
-		    addr > sizeof(struct user) - 3)
-			break;
-
-		if (addr < sizeof(struct pt_regs))
-			tmp = get_stack_long(child, addr);
-		else if (addr >= (long) &dummy->fpu &&
-			 addr < (long) &dummy->u_fpvalid) {
-			if (!tsk_used_math(child)) {
-				if (addr == (long)&dummy->fpu.fpscr)
-					tmp = FPSCR_INIT;
-				else
-					tmp = 0;
-			} else
-				tmp = ((long *)&child->thread.fpu)
-					[(addr - (long)&dummy->fpu) >> 2];
-		} else if (addr == (long) &dummy->u_fpvalid)
-			tmp = !!tsk_used_math(child);
-		else
-			tmp = 0;
-		ret = put_user(tmp, (unsigned long __user *)data);
-		break;
-	}
-
-	/* when I and D space are separate, this will have to be fixed. */
-	case PTRACE_POKETEXT: /* write the word at location addr. */
-	case PTRACE_POKEDATA:
-		ret = generic_ptrace_pokedata(child, addr, data);
-		break;
-
-	case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
-		ret = -EIO;
-		if ((addr & 3) || addr < 0 ||
-		    addr > sizeof(struct user) - 3)
-			break;
-
-		if (addr < sizeof(struct pt_regs))
-			ret = put_stack_long(child, addr, data);
-		else if (addr >= (long) &dummy->fpu &&
-			 addr < (long) &dummy->u_fpvalid) {
-			set_stopped_child_used_math(child);
-			((long *)&child->thread.fpu)
-				[(addr - (long)&dummy->fpu) >> 2] = data;
-			ret = 0;
-		} else if (addr == (long) &dummy->u_fpvalid) {
-			conditional_stopped_child_used_math(data, child);
-			ret = 0;
-		}
-		break;
-
-	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
-	case PTRACE_CONT: { /* restart after signal. */
-		ret = -EIO;
-		if (!valid_signal(data))
-			break;
-		if (request == PTRACE_SYSCALL)
-			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		else
-			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-
-		ptrace_disable_singlestep(child);
-
-		child->exit_code = data;
-		wake_up_process(child);
-		ret = 0;
-		break;
-	}
-
-/*
- * make the child exit.  Best I can do is send it a sigkill.
- * perhaps it should be put in the status that it wants to
- * exit.
- */
-	case PTRACE_KILL: {
-		ret = 0;
-		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
-			break;
-		ptrace_disable_singlestep(child);
-		child->exit_code = SIGKILL;
-		wake_up_process(child);
-		break;
-	}
-
-	case PTRACE_SINGLESTEP: {  /* set the trap flag. */
-		long pc;
-		struct pt_regs *regs = NULL;
-
-		ret = -EIO;
-		if (!valid_signal(data))
-			break;
-		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		if ((child->ptrace & PT_DTRACE) == 0) {
-			/* Spurious delayed TF traps may occur */
-			child->ptrace |= PT_DTRACE;
-		}
-
-		pc = get_stack_long(child, (long)&regs->pc);
-
-		/* Next scheduling will set up UBC */
-		if (child->thread.ubc_pc == 0)
-			ubc_usercnt += 1;
-		child->thread.ubc_pc = pc;
-
-		set_tsk_thread_flag(child, TIF_SINGLESTEP);
-		child->exit_code = data;
-		/* give it a chance to run. */
-		wake_up_process(child);
-		ret = 0;
-		break;
-	}
-
-#ifdef CONFIG_SH_DSP
-	case PTRACE_GETDSPREGS: {
-		unsigned long dp;
-
-		ret = -EIO;
-		dp = ((unsigned long) child) + THREAD_SIZE -
-			 sizeof(struct pt_dspregs);
-		if (*((int *) (dp - 4)) == SR_FD) {
-			copy_to_user(addr, (void *) dp,
-				sizeof(struct pt_dspregs));
-			ret = 0;
-		}
-		break;
-	}
-
-	case PTRACE_SETDSPREGS: {
-		unsigned long dp;
-
-		ret = -EIO;
-		dp = ((unsigned long) child) + THREAD_SIZE -
-			 sizeof(struct pt_dspregs);
-		if (*((int *) (dp - 4)) == SR_FD) {
-			copy_from_user((void *) dp, addr,
-				sizeof(struct pt_dspregs));
-			ret = 0;
-		}
-		break;
-	}
-#endif
-	default:
-		ret = ptrace_request(child, request, addr, data);
-		break;
-	}
-
-	return ret;
-}
-
-asmlinkage void do_syscall_trace(void)
-{
-	struct task_struct *tsk = current;
-
-	if (!test_thread_flag(TIF_SYSCALL_TRACE) &&
-	    !test_thread_flag(TIF_SINGLESTEP))
-		return;
-	if (!(tsk->ptrace & PT_PTRACED))
-		return;
-	/* the 0x80 provides a way for the tracing parent to distinguish
-	   between a syscall stop and SIGTRAP delivery */
-	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) &&
-				 !test_thread_flag(TIF_SINGLESTEP) ? 0x80 : 0));
-
-	/*
-	 * this isn't the same as continuing with a signal, but it will do
-	 * for normal use.  strace only continues with a signal if the
-	 * stopping signal is not SIGTRAP.  -brl
-	 */
-	if (tsk->exit_code) {
-		send_sig(tsk->exit_code, tsk, 1);
-		tsk->exit_code = 0;
-	}
-}
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
new file mode 100644
index 000000000000..ac725f0aeb72
--- /dev/null
+++ b/arch/sh/kernel/ptrace_32.c
@@ -0,0 +1,274 @@
+/*
+ * linux/arch/sh/kernel/ptrace.c
+ *
+ * Original x86 implementation:
+ *	By Ross Biro 1/23/92
+ *	edited by Linus Torvalds
+ *
+ * SuperH version:   Copyright (C) 1999, 2000  Kaz Kojima & Niibe Yutaka
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/slab.h>
+#include <linux/security.h>
+#include <linux/signal.h>
+#include <linux/io.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/processor.h>
+#include <asm/mmu_context.h>
+
+/*
+ * does not yet catch signals sent when the child dies.
+ * in exit.c or in signal.c.
+ */
+
+/*
+ * This routine will get a word off of the process kernel stack.
+ */
+static inline int get_stack_long(struct task_struct *task, int offset)
+{
+	unsigned char *stack;
+
+	stack = (unsigned char *)task_pt_regs(task);
+	stack += offset;
+	return (*((int *)stack));
+}
+
+/*
+ * This routine will put a word on the process kernel stack.
+ */
+static inline int put_stack_long(struct task_struct *task, int offset,
+				 unsigned long data)
+{
+	unsigned char *stack;
+
+	stack = (unsigned char *)task_pt_regs(task);
+	stack += offset;
+	*(unsigned long *) stack = data;
+	return 0;
+}
+
+static void ptrace_disable_singlestep(struct task_struct *child)
+{
+	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
+
+	/*
+	 * Ensure the UBC is not programmed at the next context switch.
+	 *
+	 * Normally this is not needed but there are sequences such as
+	 * singlestep, signal delivery, and continue that leave the
+	 * ubc_pc non-zero leading to spurious SIGTRAPs.
+	 */
+	if (child->thread.ubc_pc != 0) {
+		ubc_usercnt -= 1;
+		child->thread.ubc_pc = 0;
+	}
+}
+
+/*
+ * Called by kernel/ptrace.c when detaching..
+ *
+ * Make sure single step bits etc are not set.
+ */
+void ptrace_disable(struct task_struct *child)
+{
+	ptrace_disable_singlestep(child);
+}
+
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+{
+	struct user * dummy = NULL;
+	int ret;
+
+	switch (request) {
+	/* when I and D space are separate, these will need to be fixed. */
+	case PTRACE_PEEKTEXT: /* read word at location addr. */
+	case PTRACE_PEEKDATA:
+		ret = generic_ptrace_peekdata(child, addr, data);
+		break;
+
+	/* read the word at location addr in the USER area. */
+	case PTRACE_PEEKUSR: {
+		unsigned long tmp;
+
+		ret = -EIO;
+		if ((addr & 3) || addr < 0 ||
+		    addr > sizeof(struct user) - 3)
+			break;
+
+		if (addr < sizeof(struct pt_regs))
+			tmp = get_stack_long(child, addr);
+		else if (addr >= (long) &dummy->fpu &&
+			 addr < (long) &dummy->u_fpvalid) {
+			if (!tsk_used_math(child)) {
+				if (addr == (long)&dummy->fpu.fpscr)
+					tmp = FPSCR_INIT;
+				else
+					tmp = 0;
+			} else
+				tmp = ((long *)&child->thread.fpu)
+					[(addr - (long)&dummy->fpu) >> 2];
+		} else if (addr == (long) &dummy->u_fpvalid)
+			tmp = !!tsk_used_math(child);
+		else
+			tmp = 0;
+		ret = put_user(tmp, (unsigned long __user *)data);
+		break;
+	}
+
+	/* when I and D space are separate, this will have to be fixed. */
+	case PTRACE_POKETEXT: /* write the word at location addr. */
+	case PTRACE_POKEDATA:
+		ret = generic_ptrace_pokedata(child, addr, data);
+		break;
+
+	case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
+		ret = -EIO;
+		if ((addr & 3) || addr < 0 ||
+		    addr > sizeof(struct user) - 3)
+			break;
+
+		if (addr < sizeof(struct pt_regs))
+			ret = put_stack_long(child, addr, data);
+		else if (addr >= (long) &dummy->fpu &&
+			 addr < (long) &dummy->u_fpvalid) {
+			set_stopped_child_used_math(child);
+			((long *)&child->thread.fpu)
+				[(addr - (long)&dummy->fpu) >> 2] = data;
+			ret = 0;
+		} else if (addr == (long) &dummy->u_fpvalid) {
+			conditional_stopped_child_used_math(data, child);
+			ret = 0;
+		}
+		break;
+
+	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
+	case PTRACE_CONT: { /* restart after signal. */
+		ret = -EIO;
+		if (!valid_signal(data))
+			break;
+		if (request == PTRACE_SYSCALL)
+			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+		else
+			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+
+		ptrace_disable_singlestep(child);
+
+		child->exit_code = data;
+		wake_up_process(child);
+		ret = 0;
+		break;
+	}
+
+/*
+ * make the child exit.  Best I can do is send it a sigkill.
+ * perhaps it should be put in the status that it wants to
+ * exit.
+ */
+	case PTRACE_KILL: {
+		ret = 0;
+		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
+			break;
+		ptrace_disable_singlestep(child);
+		child->exit_code = SIGKILL;
+		wake_up_process(child);
+		break;
+	}
+
+	case PTRACE_SINGLESTEP: {  /* set the trap flag. */
+		long pc;
+		struct pt_regs *regs = NULL;
+
+		ret = -EIO;
+		if (!valid_signal(data))
+			break;
+		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+		if ((child->ptrace & PT_DTRACE) == 0) {
+			/* Spurious delayed TF traps may occur */
+			child->ptrace |= PT_DTRACE;
+		}
+
+		pc = get_stack_long(child, (long)&regs->pc);
+
+		/* Next scheduling will set up UBC */
+		if (child->thread.ubc_pc == 0)
+			ubc_usercnt += 1;
+		child->thread.ubc_pc = pc;
+
+		set_tsk_thread_flag(child, TIF_SINGLESTEP);
+		child->exit_code = data;
+		/* give it a chance to run. */
+		wake_up_process(child);
+		ret = 0;
+		break;
+	}
+
+#ifdef CONFIG_SH_DSP
+	case PTRACE_GETDSPREGS: {
+		unsigned long dp;
+
+		ret = -EIO;
+		dp = ((unsigned long) child) + THREAD_SIZE -
+			 sizeof(struct pt_dspregs);
+		if (*((int *) (dp - 4)) == SR_FD) {
+			copy_to_user(addr, (void *) dp,
+				sizeof(struct pt_dspregs));
+			ret = 0;
+		}
+		break;
+	}
+
+	case PTRACE_SETDSPREGS: {
+		unsigned long dp;
+
+		ret = -EIO;
+		dp = ((unsigned long) child) + THREAD_SIZE -
+			 sizeof(struct pt_dspregs);
+		if (*((int *) (dp - 4)) == SR_FD) {
+			copy_from_user((void *) dp, addr,
+				sizeof(struct pt_dspregs));
+			ret = 0;
+		}
+		break;
+	}
+#endif
+	default:
+		ret = ptrace_request(child, request, addr, data);
+		break;
+	}
+
+	return ret;
+}
+
+asmlinkage void do_syscall_trace(void)
+{
+	struct task_struct *tsk = current;
+
+	if (!test_thread_flag(TIF_SYSCALL_TRACE) &&
+	    !test_thread_flag(TIF_SINGLESTEP))
+		return;
+	if (!(tsk->ptrace & PT_PTRACED))
+		return;
+	/* the 0x80 provides a way for the tracing parent to distinguish
+	   between a syscall stop and SIGTRAP delivery */
+	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) &&
+				 !test_thread_flag(TIF_SINGLESTEP) ? 0x80 : 0));
+
+	/*
+	 * this isn't the same as continuing with a signal, but it will do
+	 * for normal use.  strace only continues with a signal if the
+	 * stopping signal is not SIGTRAP.  -brl
+	 */
+	if (tsk->exit_code) {
+		send_sig(tsk->exit_code, tsk, 1);
+		tsk->exit_code = 0;
+	}
+}
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
new file mode 100644
index 000000000000..8a2d339cf760
--- /dev/null
+++ b/arch/sh/kernel/ptrace_64.c
@@ -0,0 +1,332 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/kernel/ptrace.c
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003  Paul Mundt
+ *
+ * Started from SH3/4 version:
+ *   SuperH version:   Copyright (C) 1999, 2000  Kaz Kojima & Niibe Yutaka
+ *
+ *   Original x86 implementation:
+ *	By Ross Biro 1/23/92
+ *	edited by Linus Torvalds
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/rwsem.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/signal.h>
+#include <linux/syscalls.h>
+
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/processor.h>
+#include <asm/mmu_context.h>
+
+/* This mask defines the bits of the SR which the user is not allowed to
+   change, which are everything except S, Q, M, PR, SZ, FR. */
+#define SR_MASK      (0xffff8cfd)
+
+/*
+ * does not yet catch signals sent when the child dies.
+ * in exit.c or in signal.c.
+ */
+
+/*
+ * This routine will get a word from the user area in the process kernel stack.
+ */
+static inline int get_stack_long(struct task_struct *task, int offset)
+{
+	unsigned char *stack;
+
+	stack = (unsigned char *)(task->thread.uregs);
+	stack += offset;
+	return (*((int *)stack));
+}
+
+static inline unsigned long
+get_fpu_long(struct task_struct *task, unsigned long addr)
+{
+	unsigned long tmp;
+	struct pt_regs *regs;
+	regs = (struct pt_regs*)((unsigned char *)task + THREAD_SIZE) - 1;
+
+	if (!tsk_used_math(task)) {
+		if (addr == offsetof(struct user_fpu_struct, fpscr)) {
+			tmp = FPSCR_INIT;
+		} else {
+			tmp = 0xffffffffUL; /* matches initial value in fpu.c */
+		}
+		return tmp;
+	}
+
+	if (last_task_used_math == task) {
+		grab_fpu();
+		fpsave(&task->thread.fpu.hard);
+		release_fpu();
+		last_task_used_math = 0;
+		regs->sr |= SR_FD;
+	}
+
+	tmp = ((long *)&task->thread.fpu)[addr / sizeof(unsigned long)];
+	return tmp;
+}
+
+/*
+ * This routine will put a word into the user area in the process kernel stack.
+ */
+static inline int put_stack_long(struct task_struct *task, int offset,
+				 unsigned long data)
+{
+	unsigned char *stack;
+
+	stack = (unsigned char *)(task->thread.uregs);
+	stack += offset;
+	*(unsigned long *) stack = data;
+	return 0;
+}
+
+static inline int
+put_fpu_long(struct task_struct *task, unsigned long addr, unsigned long data)
+{
+	struct pt_regs *regs;
+
+	regs = (struct pt_regs*)((unsigned char *)task + THREAD_SIZE) - 1;
+
+	if (!tsk_used_math(task)) {
+		fpinit(&task->thread.fpu.hard);
+		set_stopped_child_used_math(task);
+	} else if (last_task_used_math == task) {
+		grab_fpu();
+		fpsave(&task->thread.fpu.hard);
+		release_fpu();
+		last_task_used_math = 0;
+		regs->sr |= SR_FD;
+	}
+
+	((long *)&task->thread.fpu)[addr / sizeof(unsigned long)] = data;
+	return 0;
+}
+
+
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+{
+	int ret;
+
+	switch (request) {
+	/* when I and D space are separate, these will need to be fixed. */
+	case PTRACE_PEEKTEXT: /* read word at location addr. */
+	case PTRACE_PEEKDATA:
+		ret = generic_ptrace_peekdata(child, addr, data);
+		break;
+
+	/* read the word at location addr in the USER area. */
+	case PTRACE_PEEKUSR: {
+		unsigned long tmp;
+
+		ret = -EIO;
+		if ((addr & 3) || addr < 0)
+			break;
+
+		if (addr < sizeof(struct pt_regs))
+			tmp = get_stack_long(child, addr);
+		else if ((addr >= offsetof(struct user, fpu)) &&
+			 (addr <  offsetof(struct user, u_fpvalid))) {
+			tmp = get_fpu_long(child, addr - offsetof(struct user, fpu));
+		} else if (addr == offsetof(struct user, u_fpvalid)) {
+			tmp = !!tsk_used_math(child);
+		} else {
+			break;
+		}
+		ret = put_user(tmp, (unsigned long *)data);
+		break;
+	}
+
+	/* when I and D space are separate, this will have to be fixed. */
+	case PTRACE_POKETEXT: /* write the word at location addr. */
+	case PTRACE_POKEDATA:
+		ret = generic_ptrace_pokedata(child, addr, data);
+		break;
+
+	case PTRACE_POKEUSR:
+                /* write the word at location addr in the USER area. We must
+                   disallow any changes to certain SR bits or u_fpvalid, since
+                   this could crash the kernel or result in a security
+                   loophole. */
+		ret = -EIO;
+		if ((addr & 3) || addr < 0)
+			break;
+
+		if (addr < sizeof(struct pt_regs)) {
+			/* Ignore change of top 32 bits of SR */
+			if (addr == offsetof (struct pt_regs, sr)+4)
+			{
+				ret = 0;
+				break;
+			}
+			/* If lower 32 bits of SR, ignore non-user bits */
+			if (addr == offsetof (struct pt_regs, sr))
+			{
+				long cursr = get_stack_long(child, addr);
+				data &= ~(SR_MASK);
+				data |= (cursr & SR_MASK);
+			}
+			ret = put_stack_long(child, addr, data);
+		}
+		else if ((addr >= offsetof(struct user, fpu)) &&
+			 (addr <  offsetof(struct user, u_fpvalid))) {
+			ret = put_fpu_long(child, addr - offsetof(struct user, fpu), data);
+		}
+		break;
+
+	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
+	case PTRACE_CONT: { /* restart after signal. */
+		ret = -EIO;
+		if (!valid_signal(data))
+			break;
+		if (request == PTRACE_SYSCALL)
+			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+		else
+			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+		child->exit_code = data;
+		wake_up_process(child);
+		ret = 0;
+		break;
+	}
+
+/*
+ * make the child exit.  Best I can do is send it a sigkill.
+ * perhaps it should be put in the status that it wants to
+ * exit.
+ */
+	case PTRACE_KILL: {
+		ret = 0;
+		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
+			break;
+		child->exit_code = SIGKILL;
+		wake_up_process(child);
+		break;
+	}
+
+	case PTRACE_SINGLESTEP: {  /* set the trap flag. */
+		struct pt_regs *regs;
+
+		ret = -EIO;
+		if (!valid_signal(data))
+			break;
+		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+		if ((child->ptrace & PT_DTRACE) == 0) {
+			/* Spurious delayed TF traps may occur */
+			child->ptrace |= PT_DTRACE;
+		}
+
+		regs = child->thread.uregs;
+
+		regs->sr |= SR_SSTEP;	/* auto-resetting upon exception */
+
+		child->exit_code = data;
+		/* give it a chance to run. */
+		wake_up_process(child);
+		ret = 0;
+		break;
+	}
+
+	default:
+		ret = ptrace_request(child, request, addr, data);
+		break;
+	}
+	return ret;
+}
+
+asmlinkage int sh64_ptrace(long request, long pid, long addr, long data)
+{
+	extern void poke_real_address_q(unsigned long long addr, unsigned long long data);
+#define WPC_DBRMODE 0x0d104008
+	static int first_call = 1;
+
+	lock_kernel();
+	if (first_call) {
+		/* Set WPC.DBRMODE to 0.  This makes all debug events get
+		 * delivered through RESVEC, i.e. into the handlers in entry.S.
+		 * (If the kernel was downloaded using a remote gdb, WPC.DBRMODE
+		 * would normally be left set to 1, which makes debug events get
+		 * delivered through DBRVEC, i.e. into the remote gdb's
+		 * handlers.  This prevents ptrace getting them, and confuses
+		 * the remote gdb.) */
+		printk("DBRMODE set to 0 to permit native debugging\n");
+		poke_real_address_q(WPC_DBRMODE, 0);
+		first_call = 0;
+	}
+	unlock_kernel();
+
+	return sys_ptrace(request, pid, addr, data);
+}
+
+asmlinkage void syscall_trace(void)
+{
+	struct task_struct *tsk = current;
+
+	if (!test_thread_flag(TIF_SYSCALL_TRACE))
+		return;
+	if (!(tsk->ptrace & PT_PTRACED))
+		return;
+
+	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
+				 ? 0x80 : 0));
+	/*
+	 * this isn't the same as continuing with a signal, but it will do
+	 * for normal use.  strace only continues with a signal if the
+	 * stopping signal is not SIGTRAP.  -brl
+	 */
+	if (tsk->exit_code) {
+		send_sig(tsk->exit_code, tsk, 1);
+		tsk->exit_code = 0;
+	}
+}
+
+/* Called with interrupts disabled */
+asmlinkage void do_single_step(unsigned long long vec, struct pt_regs *regs)
+{
+	/* This is called after a single step exception (DEBUGSS).
+	   There is no need to change the PC, as it is a post-execution
+	   exception, as entry.S does not do anything to the PC for DEBUGSS.
+	   We need to clear the Single Step setting in SR to avoid
+	   continually stepping. */
+	local_irq_enable();
+	regs->sr &= ~SR_SSTEP;
+	force_sig(SIGTRAP, current);
+}
+
+/* Called with interrupts disabled */
+asmlinkage void do_software_break_point(unsigned long long vec,
+					struct pt_regs *regs)
+{
+	/* We need to forward step the PC, to counteract the backstep done
+	   in signal.c. */
+	local_irq_enable();
+	force_sig(SIGTRAP, current);
+	regs->pc += 4;
+}
+
+/*
+ * Called by kernel/ptrace.c when detaching..
+ *
+ * Make sure single step bits etc are not set.
+ */
+void ptrace_disable(struct task_struct *child)
+{
+        /* nothing to do.. */
+}
diff --git a/arch/sh64/kernel/ptrace.c b/arch/sh64/kernel/ptrace.c
deleted file mode 100644
index 8a2d339cf760..000000000000
--- a/arch/sh64/kernel/ptrace.c
+++ /dev/null
@@ -1,332 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/ptrace.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003  Paul Mundt
- *
- * Started from SH3/4 version:
- *   SuperH version:   Copyright (C) 1999, 2000  Kaz Kojima & Niibe Yutaka
- *
- *   Original x86 implementation:
- *	By Ross Biro 1/23/92
- *	edited by Linus Torvalds
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/signal.h>
-#include <linux/syscalls.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/mmu_context.h>
-
-/* This mask defines the bits of the SR which the user is not allowed to
-   change, which are everything except S, Q, M, PR, SZ, FR. */
-#define SR_MASK      (0xffff8cfd)
-
-/*
- * does not yet catch signals sent when the child dies.
- * in exit.c or in signal.c.
- */
-
-/*
- * This routine will get a word from the user area in the process kernel stack.
- */
-static inline int get_stack_long(struct task_struct *task, int offset)
-{
-	unsigned char *stack;
-
-	stack = (unsigned char *)(task->thread.uregs);
-	stack += offset;
-	return (*((int *)stack));
-}
-
-static inline unsigned long
-get_fpu_long(struct task_struct *task, unsigned long addr)
-{
-	unsigned long tmp;
-	struct pt_regs *regs;
-	regs = (struct pt_regs*)((unsigned char *)task + THREAD_SIZE) - 1;
-
-	if (!tsk_used_math(task)) {
-		if (addr == offsetof(struct user_fpu_struct, fpscr)) {
-			tmp = FPSCR_INIT;
-		} else {
-			tmp = 0xffffffffUL; /* matches initial value in fpu.c */
-		}
-		return tmp;
-	}
-
-	if (last_task_used_math == task) {
-		grab_fpu();
-		fpsave(&task->thread.fpu.hard);
-		release_fpu();
-		last_task_used_math = 0;
-		regs->sr |= SR_FD;
-	}
-
-	tmp = ((long *)&task->thread.fpu)[addr / sizeof(unsigned long)];
-	return tmp;
-}
-
-/*
- * This routine will put a word into the user area in the process kernel stack.
- */
-static inline int put_stack_long(struct task_struct *task, int offset,
-				 unsigned long data)
-{
-	unsigned char *stack;
-
-	stack = (unsigned char *)(task->thread.uregs);
-	stack += offset;
-	*(unsigned long *) stack = data;
-	return 0;
-}
-
-static inline int
-put_fpu_long(struct task_struct *task, unsigned long addr, unsigned long data)
-{
-	struct pt_regs *regs;
-
-	regs = (struct pt_regs*)((unsigned char *)task + THREAD_SIZE) - 1;
-
-	if (!tsk_used_math(task)) {
-		fpinit(&task->thread.fpu.hard);
-		set_stopped_child_used_math(task);
-	} else if (last_task_used_math == task) {
-		grab_fpu();
-		fpsave(&task->thread.fpu.hard);
-		release_fpu();
-		last_task_used_math = 0;
-		regs->sr |= SR_FD;
-	}
-
-	((long *)&task->thread.fpu)[addr / sizeof(unsigned long)] = data;
-	return 0;
-}
-
-
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
-{
-	int ret;
-
-	switch (request) {
-	/* when I and D space are separate, these will need to be fixed. */
-	case PTRACE_PEEKTEXT: /* read word at location addr. */
-	case PTRACE_PEEKDATA:
-		ret = generic_ptrace_peekdata(child, addr, data);
-		break;
-
-	/* read the word at location addr in the USER area. */
-	case PTRACE_PEEKUSR: {
-		unsigned long tmp;
-
-		ret = -EIO;
-		if ((addr & 3) || addr < 0)
-			break;
-
-		if (addr < sizeof(struct pt_regs))
-			tmp = get_stack_long(child, addr);
-		else if ((addr >= offsetof(struct user, fpu)) &&
-			 (addr <  offsetof(struct user, u_fpvalid))) {
-			tmp = get_fpu_long(child, addr - offsetof(struct user, fpu));
-		} else if (addr == offsetof(struct user, u_fpvalid)) {
-			tmp = !!tsk_used_math(child);
-		} else {
-			break;
-		}
-		ret = put_user(tmp, (unsigned long *)data);
-		break;
-	}
-
-	/* when I and D space are separate, this will have to be fixed. */
-	case PTRACE_POKETEXT: /* write the word at location addr. */
-	case PTRACE_POKEDATA:
-		ret = generic_ptrace_pokedata(child, addr, data);
-		break;
-
-	case PTRACE_POKEUSR:
-                /* write the word at location addr in the USER area. We must
-                   disallow any changes to certain SR bits or u_fpvalid, since
-                   this could crash the kernel or result in a security
-                   loophole. */
-		ret = -EIO;
-		if ((addr & 3) || addr < 0)
-			break;
-
-		if (addr < sizeof(struct pt_regs)) {
-			/* Ignore change of top 32 bits of SR */
-			if (addr == offsetof (struct pt_regs, sr)+4)
-			{
-				ret = 0;
-				break;
-			}
-			/* If lower 32 bits of SR, ignore non-user bits */
-			if (addr == offsetof (struct pt_regs, sr))
-			{
-				long cursr = get_stack_long(child, addr);
-				data &= ~(SR_MASK);
-				data |= (cursr & SR_MASK);
-			}
-			ret = put_stack_long(child, addr, data);
-		}
-		else if ((addr >= offsetof(struct user, fpu)) &&
-			 (addr <  offsetof(struct user, u_fpvalid))) {
-			ret = put_fpu_long(child, addr - offsetof(struct user, fpu), data);
-		}
-		break;
-
-	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
-	case PTRACE_CONT: { /* restart after signal. */
-		ret = -EIO;
-		if (!valid_signal(data))
-			break;
-		if (request == PTRACE_SYSCALL)
-			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		else
-			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		child->exit_code = data;
-		wake_up_process(child);
-		ret = 0;
-		break;
-	}
-
-/*
- * make the child exit.  Best I can do is send it a sigkill.
- * perhaps it should be put in the status that it wants to
- * exit.
- */
-	case PTRACE_KILL: {
-		ret = 0;
-		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
-			break;
-		child->exit_code = SIGKILL;
-		wake_up_process(child);
-		break;
-	}
-
-	case PTRACE_SINGLESTEP: {  /* set the trap flag. */
-		struct pt_regs *regs;
-
-		ret = -EIO;
-		if (!valid_signal(data))
-			break;
-		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		if ((child->ptrace & PT_DTRACE) == 0) {
-			/* Spurious delayed TF traps may occur */
-			child->ptrace |= PT_DTRACE;
-		}
-
-		regs = child->thread.uregs;
-
-		regs->sr |= SR_SSTEP;	/* auto-resetting upon exception */
-
-		child->exit_code = data;
-		/* give it a chance to run. */
-		wake_up_process(child);
-		ret = 0;
-		break;
-	}
-
-	default:
-		ret = ptrace_request(child, request, addr, data);
-		break;
-	}
-	return ret;
-}
-
-asmlinkage int sh64_ptrace(long request, long pid, long addr, long data)
-{
-	extern void poke_real_address_q(unsigned long long addr, unsigned long long data);
-#define WPC_DBRMODE 0x0d104008
-	static int first_call = 1;
-
-	lock_kernel();
-	if (first_call) {
-		/* Set WPC.DBRMODE to 0.  This makes all debug events get
-		 * delivered through RESVEC, i.e. into the handlers in entry.S.
-		 * (If the kernel was downloaded using a remote gdb, WPC.DBRMODE
-		 * would normally be left set to 1, which makes debug events get
-		 * delivered through DBRVEC, i.e. into the remote gdb's
-		 * handlers.  This prevents ptrace getting them, and confuses
-		 * the remote gdb.) */
-		printk("DBRMODE set to 0 to permit native debugging\n");
-		poke_real_address_q(WPC_DBRMODE, 0);
-		first_call = 0;
-	}
-	unlock_kernel();
-
-	return sys_ptrace(request, pid, addr, data);
-}
-
-asmlinkage void syscall_trace(void)
-{
-	struct task_struct *tsk = current;
-
-	if (!test_thread_flag(TIF_SYSCALL_TRACE))
-		return;
-	if (!(tsk->ptrace & PT_PTRACED))
-		return;
-
-	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-				 ? 0x80 : 0));
-	/*
-	 * this isn't the same as continuing with a signal, but it will do
-	 * for normal use.  strace only continues with a signal if the
-	 * stopping signal is not SIGTRAP.  -brl
-	 */
-	if (tsk->exit_code) {
-		send_sig(tsk->exit_code, tsk, 1);
-		tsk->exit_code = 0;
-	}
-}
-
-/* Called with interrupts disabled */
-asmlinkage void do_single_step(unsigned long long vec, struct pt_regs *regs)
-{
-	/* This is called after a single step exception (DEBUGSS).
-	   There is no need to change the PC, as it is a post-execution
-	   exception, as entry.S does not do anything to the PC for DEBUGSS.
-	   We need to clear the Single Step setting in SR to avoid
-	   continually stepping. */
-	local_irq_enable();
-	regs->sr &= ~SR_SSTEP;
-	force_sig(SIGTRAP, current);
-}
-
-/* Called with interrupts disabled */
-asmlinkage void do_software_break_point(unsigned long long vec,
-					struct pt_regs *regs)
-{
-	/* We need to forward step the PC, to counteract the backstep done
-	   in signal.c. */
-	local_irq_enable();
-	force_sig(SIGTRAP, current);
-	regs->pc += 4;
-}
-
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure single step bits etc are not set.
- */
-void ptrace_disable(struct task_struct *child)
-{
-        /* nothing to do.. */
-}
-- 
cgit v1.2.3-59-g8ed1b


From f7a7b15344e2bccdd1c73d42685edfe7d43ec5b7 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sat, 10 Nov 2007 20:07:57 +0900
Subject: sh: Move in the SH-5 signal trampoline impl.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile_32  |   2 +-
 arch/sh/kernel/Makefile_64  |   2 +-
 arch/sh/kernel/signal.c     | 629 ------------------------------------
 arch/sh/kernel/signal_32.c  | 629 ++++++++++++++++++++++++++++++++++++
 arch/sh/kernel/signal_64.c  | 754 ++++++++++++++++++++++++++++++++++++++++++++
 arch/sh64/kernel/signal.c   | 750 -------------------------------------------
 include/asm-sh/sigcontext.h |  13 +
 7 files changed, 1398 insertions(+), 1381 deletions(-)
 delete mode 100644 arch/sh/kernel/signal.c
 create mode 100644 arch/sh/kernel/signal_32.c
 create mode 100644 arch/sh/kernel/signal_64.c
 delete mode 100644 arch/sh64/kernel/signal.c

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index 54b5a2da562e..bad6bf5ac478 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/arch/sh/kernel/Makefile_32
@@ -5,7 +5,7 @@
 extra-y	:= head.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_32.o \
-	   ptrace_32.o semaphore.o setup.o signal.o sys_sh.o syscalls.o \
+	   ptrace_32.o semaphore.o setup.o signal_32.o sys_sh.o syscalls.o \
 	   time.o topology.o traps.o
 
 obj-y				+= cpu/ timers/
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index 7dc995d6fdeb..5f2711ae5468 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/arch/sh/kernel/Makefile_64
@@ -1,7 +1,7 @@
 extra-y	:= head.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
-	   ptrace_64.o semaphore.o setup.o signal.o sys_sh.o syscalls.o \
+	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh.o syscalls.o \
 	   time.o topology.o traps.o
 
 obj-y				+= cpu/ timers/
diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c
deleted file mode 100644
index ca754fd42437..000000000000
--- a/arch/sh/kernel/signal.c
+++ /dev/null
@@ -1,629 +0,0 @@
-/*
- *  linux/arch/sh/kernel/signal.c
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- *
- *  1997-11-28  Modified for POSIX.1b signals by Richard Henderson
- *
- *  SuperH version:  Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima
- *
- */
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/errno.h>
-#include <linux/wait.h>
-#include <linux/ptrace.h>
-#include <linux/unistd.h>
-#include <linux/stddef.h>
-#include <linux/tty.h>
-#include <linux/elf.h>
-#include <linux/personality.h>
-#include <linux/binfmts.h>
-#include <linux/freezer.h>
-#include <linux/io.h>
-#include <asm/system.h>
-#include <asm/ucontext.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/cacheflush.h>
-
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage int
-sys_sigsuspend(old_sigset_t mask,
-	       unsigned long r5, unsigned long r6, unsigned long r7,
-	       struct pt_regs __regs)
-{
-	mask &= _BLOCKABLE;
-	spin_lock_irq(&current->sighand->siglock);
-	current->saved_sigmask = current->blocked;
-	siginitset(&current->blocked, mask);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	current->state = TASK_INTERRUPTIBLE;
-	schedule();
-	set_thread_flag(TIF_RESTORE_SIGMASK);
-	return -ERESTARTNOHAND;
-}
-
-asmlinkage int
-sys_sigaction(int sig, const struct old_sigaction __user *act,
-	      struct old_sigaction __user *oact)
-{
-	struct k_sigaction new_ka, old_ka;
-	int ret;
-
-	if (act) {
-		old_sigset_t mask;
-		if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-		    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-		    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
-			return -EFAULT;
-		__get_user(new_ka.sa.sa_flags, &act->sa_flags);
-		__get_user(mask, &act->sa_mask);
-		siginitset(&new_ka.sa.sa_mask, mask);
-	}
-
-	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
-	if (!ret && oact) {
-		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-		    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-		    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
-			return -EFAULT;
-		__put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-		__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
-	}
-
-	return ret;
-}
-
-asmlinkage int
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
-		unsigned long r6, unsigned long r7,
-		struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-
-	return do_sigaltstack(uss, uoss, regs->regs[15]);
-}
-
-
-/*
- * Do a signal return; undo the signal stack.
- */
-
-#define MOVW(n)	 (0x9300|((n)-2))	/* Move mem word at PC+n to R3 */
-#if defined(CONFIG_CPU_SH2)
-#define TRAP_NOARG 0xc320		/* Syscall w/no args (NR in R3) */
-#else
-#define TRAP_NOARG 0xc310		/* Syscall w/no args (NR in R3) */
-#endif
-#define OR_R0_R0 0x200b			/* or r0,r0 (insert to avoid hardware bug) */
-
-struct sigframe
-{
-	struct sigcontext sc;
-	unsigned long extramask[_NSIG_WORDS-1];
-	u16 retcode[8];
-};
-
-struct rt_sigframe
-{
-	struct siginfo info;
-	struct ucontext uc;
-	u16 retcode[8];
-};
-
-#ifdef CONFIG_SH_FPU
-static inline int restore_sigcontext_fpu(struct sigcontext __user *sc)
-{
-	struct task_struct *tsk = current;
-
-	if (!(current_cpu_data.flags & CPU_HAS_FPU))
-		return 0;
-
-	set_used_math();
-	return __copy_from_user(&tsk->thread.fpu.hard, &sc->sc_fpregs[0],
-				sizeof(long)*(16*2+2));
-}
-
-static inline int save_sigcontext_fpu(struct sigcontext __user *sc,
-				      struct pt_regs *regs)
-{
-	struct task_struct *tsk = current;
-
-	if (!(current_cpu_data.flags & CPU_HAS_FPU))
-		return 0;
-
-	if (!used_math()) {
-		__put_user(0, &sc->sc_ownedfp);
-		return 0;
-	}
-
-	__put_user(1, &sc->sc_ownedfp);
-
-	/* This will cause a "finit" to be triggered by the next
-	   attempted FPU operation by the 'current' process.
-	   */
-	clear_used_math();
-
-	unlazy_fpu(tsk, regs);
-	return __copy_to_user(&sc->sc_fpregs[0], &tsk->thread.fpu.hard,
-			      sizeof(long)*(16*2+2));
-}
-#endif /* CONFIG_SH_FPU */
-
-static int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *r0_p)
-{
-	unsigned int err = 0;
-
-#define COPY(x)		err |= __get_user(regs->x, &sc->sc_##x)
-			COPY(regs[1]);
-	COPY(regs[2]);	COPY(regs[3]);
-	COPY(regs[4]);	COPY(regs[5]);
-	COPY(regs[6]);	COPY(regs[7]);
-	COPY(regs[8]);	COPY(regs[9]);
-	COPY(regs[10]);	COPY(regs[11]);
-	COPY(regs[12]);	COPY(regs[13]);
-	COPY(regs[14]);	COPY(regs[15]);
-	COPY(gbr);	COPY(mach);
-	COPY(macl);	COPY(pr);
-	COPY(sr);	COPY(pc);
-#undef COPY
-
-#ifdef CONFIG_SH_FPU
-	if (current_cpu_data.flags & CPU_HAS_FPU) {
-		int owned_fp;
-		struct task_struct *tsk = current;
-
-		regs->sr |= SR_FD; /* Release FPU */
-		clear_fpu(tsk, regs);
-		clear_used_math();
-		__get_user (owned_fp, &sc->sc_ownedfp);
-		if (owned_fp)
-			err |= restore_sigcontext_fpu(sc);
-	}
-#endif
-
-	regs->tra = -1;		/* disable syscall checks */
-	err |= __get_user(*r0_p, &sc->sc_regs[0]);
-	return err;
-}
-
-asmlinkage int sys_sigreturn(unsigned long r4, unsigned long r5,
-			     unsigned long r6, unsigned long r7,
-			     struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-	struct sigframe __user *frame = (struct sigframe __user *)regs->regs[15];
-	sigset_t set;
-	int r0;
-
-	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-		goto badframe;
-
-	if (__get_user(set.sig[0], &frame->sc.oldmask)
-	    || (_NSIG_WORDS > 1
-		&& __copy_from_user(&set.sig[1], &frame->extramask,
-				    sizeof(frame->extramask))))
-		goto badframe;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	if (restore_sigcontext(regs, &frame->sc, &r0))
-		goto badframe;
-	return r0;
-
-badframe:
-	force_sig(SIGSEGV, current);
-	return 0;
-}
-
-asmlinkage int sys_rt_sigreturn(unsigned long r4, unsigned long r5,
-				unsigned long r6, unsigned long r7,
-				struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-	struct rt_sigframe __user *frame = (struct rt_sigframe __user *)regs->regs[15];
-	sigset_t set;
-	stack_t st;
-	int r0;
-
-	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-		goto badframe;
-
-	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
-		goto badframe;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0))
-		goto badframe;
-
-	if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st)))
-		goto badframe;
-	/* It is more difficult to avoid calling this function than to
-	   call it and ignore errors.  */
-	do_sigaltstack((const stack_t __user *)&st, NULL, (unsigned long)frame);
-
-	return r0;
-
-badframe:
-	force_sig(SIGSEGV, current);
-	return 0;
-}
-
-/*
- * Set up a signal frame.
- */
-
-static int
-setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
-		 unsigned long mask)
-{
-	int err = 0;
-
-#define COPY(x)		err |= __put_user(regs->x, &sc->sc_##x)
-	COPY(regs[0]);	COPY(regs[1]);
-	COPY(regs[2]);	COPY(regs[3]);
-	COPY(regs[4]);	COPY(regs[5]);
-	COPY(regs[6]);	COPY(regs[7]);
-	COPY(regs[8]);	COPY(regs[9]);
-	COPY(regs[10]);	COPY(regs[11]);
-	COPY(regs[12]);	COPY(regs[13]);
-	COPY(regs[14]);	COPY(regs[15]);
-	COPY(gbr);	COPY(mach);
-	COPY(macl);	COPY(pr);
-	COPY(sr);	COPY(pc);
-#undef COPY
-
-#ifdef CONFIG_SH_FPU
-	err |= save_sigcontext_fpu(sc, regs);
-#endif
-
-	/* non-iBCS2 extensions.. */
-	err |= __put_user(mask, &sc->oldmask);
-
-	return err;
-}
-
-/*
- * Determine which stack to use..
- */
-static inline void __user *
-get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
-{
-	if (ka->sa.sa_flags & SA_ONSTACK) {
-		if (sas_ss_flags(sp) == 0)
-			sp = current->sas_ss_sp + current->sas_ss_size;
-	}
-
-	return (void __user *)((sp - frame_size) & -8ul);
-}
-
-/* These symbols are defined with the addresses in the vsyscall page.
-   See vsyscall-trapa.S.  */
-extern void __user __kernel_sigreturn;
-extern void __user __kernel_rt_sigreturn;
-
-static int setup_frame(int sig, struct k_sigaction *ka,
-			sigset_t *set, struct pt_regs *regs)
-{
-	struct sigframe __user *frame;
-	int err = 0;
-	int signal;
-
-	frame = get_sigframe(ka, regs->regs[15], sizeof(*frame));
-
-	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-		goto give_sigsegv;
-
-	signal = current_thread_info()->exec_domain
-		&& current_thread_info()->exec_domain->signal_invmap
-		&& sig < 32
-		? current_thread_info()->exec_domain->signal_invmap[sig]
-		: sig;
-
-	err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
-
-	if (_NSIG_WORDS > 1)
-		err |= __copy_to_user(frame->extramask, &set->sig[1],
-				      sizeof(frame->extramask));
-
-	/* Set up to return from userspace.  If provided, use a stub
-	   already in userspace.  */
-	if (ka->sa.sa_flags & SA_RESTORER) {
-		regs->pr = (unsigned long) ka->sa.sa_restorer;
-#ifdef CONFIG_VSYSCALL
-	} else if (likely(current->mm->context.vdso)) {
-		regs->pr = VDSO_SYM(&__kernel_sigreturn);
-#endif
-	} else {
-		/* Generate return code (system call to sigreturn) */
-		err |= __put_user(MOVW(7), &frame->retcode[0]);
-		err |= __put_user(TRAP_NOARG, &frame->retcode[1]);
-		err |= __put_user(OR_R0_R0, &frame->retcode[2]);
-		err |= __put_user(OR_R0_R0, &frame->retcode[3]);
-		err |= __put_user(OR_R0_R0, &frame->retcode[4]);
-		err |= __put_user(OR_R0_R0, &frame->retcode[5]);
-		err |= __put_user(OR_R0_R0, &frame->retcode[6]);
-		err |= __put_user((__NR_sigreturn), &frame->retcode[7]);
-		regs->pr = (unsigned long) frame->retcode;
-	}
-
-	if (err)
-		goto give_sigsegv;
-
-	/* Set up registers for signal handler */
-	regs->regs[15] = (unsigned long) frame;
-	regs->regs[4] = signal; /* Arg for signal handler */
-	regs->regs[5] = 0;
-	regs->regs[6] = (unsigned long) &frame->sc;
-	regs->pc = (unsigned long) ka->sa.sa_handler;
-
-	set_fs(USER_DS);
-
-	pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n",
-		 current->comm, task_pid_nr(current), frame, regs->pc, regs->pr);
-
-	flush_cache_sigtramp(regs->pr);
-
-	if ((-regs->pr & (L1_CACHE_BYTES-1)) < sizeof(frame->retcode))
-		flush_cache_sigtramp(regs->pr + L1_CACHE_BYTES);
-
-	return 0;
-
-give_sigsegv:
-	force_sigsegv(sig, current);
-	return -EFAULT;
-}
-
-static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
-			   sigset_t *set, struct pt_regs *regs)
-{
-	struct rt_sigframe __user *frame;
-	int err = 0;
-	int signal;
-
-	frame = get_sigframe(ka, regs->regs[15], sizeof(*frame));
-
-	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-		goto give_sigsegv;
-
-	signal = current_thread_info()->exec_domain
-		&& current_thread_info()->exec_domain->signal_invmap
-		&& sig < 32
-		? current_thread_info()->exec_domain->signal_invmap[sig]
-		: sig;
-
-	err |= copy_siginfo_to_user(&frame->info, info);
-
-	/* Create the ucontext.  */
-	err |= __put_user(0, &frame->uc.uc_flags);
-	err |= __put_user(0, &frame->uc.uc_link);
-	err |= __put_user((void *)current->sas_ss_sp,
-			  &frame->uc.uc_stack.ss_sp);
-	err |= __put_user(sas_ss_flags(regs->regs[15]),
-			  &frame->uc.uc_stack.ss_flags);
-	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
-	err |= setup_sigcontext(&frame->uc.uc_mcontext,
-			        regs, set->sig[0]);
-	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
-
-	/* Set up to return from userspace.  If provided, use a stub
-	   already in userspace.  */
-	if (ka->sa.sa_flags & SA_RESTORER) {
-		regs->pr = (unsigned long) ka->sa.sa_restorer;
-#ifdef CONFIG_VSYSCALL
-	} else if (likely(current->mm->context.vdso)) {
-		regs->pr = VDSO_SYM(&__kernel_rt_sigreturn);
-#endif
-	} else {
-		/* Generate return code (system call to rt_sigreturn) */
-		err |= __put_user(MOVW(7), &frame->retcode[0]);
-		err |= __put_user(TRAP_NOARG, &frame->retcode[1]);
-		err |= __put_user(OR_R0_R0, &frame->retcode[2]);
-		err |= __put_user(OR_R0_R0, &frame->retcode[3]);
-		err |= __put_user(OR_R0_R0, &frame->retcode[4]);
-		err |= __put_user(OR_R0_R0, &frame->retcode[5]);
-		err |= __put_user(OR_R0_R0, &frame->retcode[6]);
-		err |= __put_user((__NR_rt_sigreturn), &frame->retcode[7]);
-		regs->pr = (unsigned long) frame->retcode;
-	}
-
-	if (err)
-		goto give_sigsegv;
-
-	/* Set up registers for signal handler */
-	regs->regs[15] = (unsigned long) frame;
-	regs->regs[4] = signal; /* Arg for signal handler */
-	regs->regs[5] = (unsigned long) &frame->info;
-	regs->regs[6] = (unsigned long) &frame->uc;
-	regs->pc = (unsigned long) ka->sa.sa_handler;
-
-	set_fs(USER_DS);
-
-	pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n",
-		 current->comm, task_pid_nr(current), frame, regs->pc, regs->pr);
-
-	flush_cache_sigtramp(regs->pr);
-
-	if ((-regs->pr & (L1_CACHE_BYTES-1)) < sizeof(frame->retcode))
-		flush_cache_sigtramp(regs->pr + L1_CACHE_BYTES);
-
-	return 0;
-
-give_sigsegv:
-	force_sigsegv(sig, current);
-	return -EFAULT;
-}
-
-/*
- * OK, we're invoking a handler
- */
-
-static int
-handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
-	      sigset_t *oldset, struct pt_regs *regs, unsigned int save_r0)
-{
-	int ret;
-
-	/* Are we from a system call? */
-	if (regs->tra >= 0) {
-		/* If so, check system call restarting.. */
-		switch (regs->regs[0]) {
-			case -ERESTART_RESTARTBLOCK:
-			case -ERESTARTNOHAND:
-				regs->regs[0] = -EINTR;
-				break;
-
-			case -ERESTARTSYS:
-				if (!(ka->sa.sa_flags & SA_RESTART)) {
-					regs->regs[0] = -EINTR;
-					break;
-				}
-			/* fallthrough */
-			case -ERESTARTNOINTR:
-				regs->regs[0] = save_r0;
-				regs->pc -= instruction_size(
-						ctrl_inw(regs->pc - 4));
-				break;
-		}
-#ifdef CONFIG_GUSA
-	} else {
-		/* gUSA handling */
-		preempt_disable();
-
-		if (regs->regs[15] >= 0xc0000000) {
-			int offset = (int)regs->regs[15];
-
-			/* Reset stack pointer: clear critical region mark */
-			regs->regs[15] = regs->regs[1];
-			if (regs->pc < regs->regs[0])
-				/* Go to rewind point #1 */
-				regs->pc = regs->regs[0] + offset -
-					instruction_size(ctrl_inw(regs->pc-4));
-		}
-
-		preempt_enable_no_resched();
-#endif
-	}
-
-	/* Set up the stack frame */
-	if (ka->sa.sa_flags & SA_SIGINFO)
-		ret = setup_rt_frame(sig, ka, info, oldset, regs);
-	else
-		ret = setup_frame(sig, ka, oldset, regs);
-
-	if (ka->sa.sa_flags & SA_ONESHOT)
-		ka->sa.sa_handler = SIG_DFL;
-
-	if (ret == 0) {
-		spin_lock_irq(&current->sighand->siglock);
-		sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
-		if (!(ka->sa.sa_flags & SA_NODEFER))
-			sigaddset(&current->blocked,sig);
-		recalc_sigpending();
-		spin_unlock_irq(&current->sighand->siglock);
-	}
-
-	return ret;
-}
-
-/*
- * Note that 'init' is a special process: it doesn't get signals it doesn't
- * want to handle. Thus you cannot kill init even with a SIGKILL even by
- * mistake.
- *
- * Note that we go through the signals twice: once to check the signals that
- * the kernel can handle, and then we build all the user-level signal handling
- * stack-frames in one go after that.
- */
-static void do_signal(struct pt_regs *regs, unsigned int save_r0)
-{
-	siginfo_t info;
-	int signr;
-	struct k_sigaction ka;
-	sigset_t *oldset;
-
-	/*
-	 * We want the common case to go fast, which
-	 * is why we may in certain cases get here from
-	 * kernel mode. Just return without doing anything
-	 * if so.
-	 */
-	if (!user_mode(regs))
-		return;
-
-	if (try_to_freeze())
-		goto no_signal;
-
-	if (test_thread_flag(TIF_RESTORE_SIGMASK))
-		oldset = &current->saved_sigmask;
-	else
-		oldset = &current->blocked;
-
-	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-	if (signr > 0) {
-		/* Whee!  Actually deliver the signal.  */
-		if (handle_signal(signr, &ka, &info, oldset,
-				  regs, save_r0) == 0) {
-			/* a signal was successfully delivered; the saved
-			 * sigmask will have been stored in the signal frame,
-			 * and will be restored by sigreturn, so we can simply
-			 * clear the TIF_RESTORE_SIGMASK flag */
-			if (test_thread_flag(TIF_RESTORE_SIGMASK))
-				clear_thread_flag(TIF_RESTORE_SIGMASK);
-		}
-
-		return;
-	}
-
- no_signal:
-	/* Did we come from a system call? */
-	if (regs->tra >= 0) {
-		/* Restart the system call - no handlers present */
-		if (regs->regs[0] == -ERESTARTNOHAND ||
-		    regs->regs[0] == -ERESTARTSYS ||
-		    regs->regs[0] == -ERESTARTNOINTR) {
-			regs->regs[0] = save_r0;
-			regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
-		} else if (regs->regs[0] == -ERESTART_RESTARTBLOCK) {
-			regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
-			regs->regs[3] = __NR_restart_syscall;
-		}
-	}
-
-	/* if there's no signal to deliver, we just put the saved sigmask
-	 * back */
-	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
-		clear_thread_flag(TIF_RESTORE_SIGMASK);
-		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
-	}
-}
-
-asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0,
-				 __u32 thread_info_flags)
-{
-	/* deal with pending signal delivery */
-	if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
-		do_signal(regs, save_r0);
-}
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
new file mode 100644
index 000000000000..ca754fd42437
--- /dev/null
+++ b/arch/sh/kernel/signal_32.c
@@ -0,0 +1,629 @@
+/*
+ *  linux/arch/sh/kernel/signal.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  1997-11-28  Modified for POSIX.1b signals by Richard Henderson
+ *
+ *  SuperH version:  Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima
+ *
+ */
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/errno.h>
+#include <linux/wait.h>
+#include <linux/ptrace.h>
+#include <linux/unistd.h>
+#include <linux/stddef.h>
+#include <linux/tty.h>
+#include <linux/elf.h>
+#include <linux/personality.h>
+#include <linux/binfmts.h>
+#include <linux/freezer.h>
+#include <linux/io.h>
+#include <asm/system.h>
+#include <asm/ucontext.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/cacheflush.h>
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+/*
+ * Atomically swap in the new signal mask, and wait for a signal.
+ */
+asmlinkage int
+sys_sigsuspend(old_sigset_t mask,
+	       unsigned long r5, unsigned long r6, unsigned long r7,
+	       struct pt_regs __regs)
+{
+	mask &= _BLOCKABLE;
+	spin_lock_irq(&current->sighand->siglock);
+	current->saved_sigmask = current->blocked;
+	siginitset(&current->blocked, mask);
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+
+	current->state = TASK_INTERRUPTIBLE;
+	schedule();
+	set_thread_flag(TIF_RESTORE_SIGMASK);
+	return -ERESTARTNOHAND;
+}
+
+asmlinkage int
+sys_sigaction(int sig, const struct old_sigaction __user *act,
+	      struct old_sigaction __user *oact)
+{
+	struct k_sigaction new_ka, old_ka;
+	int ret;
+
+	if (act) {
+		old_sigset_t mask;
+		if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
+		    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
+		    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
+			return -EFAULT;
+		__get_user(new_ka.sa.sa_flags, &act->sa_flags);
+		__get_user(mask, &act->sa_mask);
+		siginitset(&new_ka.sa.sa_mask, mask);
+	}
+
+	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+	if (!ret && oact) {
+		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
+		    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
+		    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
+			return -EFAULT;
+		__put_user(old_ka.sa.sa_flags, &oact->sa_flags);
+		__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
+	}
+
+	return ret;
+}
+
+asmlinkage int
+sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
+		unsigned long r6, unsigned long r7,
+		struct pt_regs __regs)
+{
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+
+	return do_sigaltstack(uss, uoss, regs->regs[15]);
+}
+
+
+/*
+ * Do a signal return; undo the signal stack.
+ */
+
+#define MOVW(n)	 (0x9300|((n)-2))	/* Move mem word at PC+n to R3 */
+#if defined(CONFIG_CPU_SH2)
+#define TRAP_NOARG 0xc320		/* Syscall w/no args (NR in R3) */
+#else
+#define TRAP_NOARG 0xc310		/* Syscall w/no args (NR in R3) */
+#endif
+#define OR_R0_R0 0x200b			/* or r0,r0 (insert to avoid hardware bug) */
+
+struct sigframe
+{
+	struct sigcontext sc;
+	unsigned long extramask[_NSIG_WORDS-1];
+	u16 retcode[8];
+};
+
+struct rt_sigframe
+{
+	struct siginfo info;
+	struct ucontext uc;
+	u16 retcode[8];
+};
+
+#ifdef CONFIG_SH_FPU
+static inline int restore_sigcontext_fpu(struct sigcontext __user *sc)
+{
+	struct task_struct *tsk = current;
+
+	if (!(current_cpu_data.flags & CPU_HAS_FPU))
+		return 0;
+
+	set_used_math();
+	return __copy_from_user(&tsk->thread.fpu.hard, &sc->sc_fpregs[0],
+				sizeof(long)*(16*2+2));
+}
+
+static inline int save_sigcontext_fpu(struct sigcontext __user *sc,
+				      struct pt_regs *regs)
+{
+	struct task_struct *tsk = current;
+
+	if (!(current_cpu_data.flags & CPU_HAS_FPU))
+		return 0;
+
+	if (!used_math()) {
+		__put_user(0, &sc->sc_ownedfp);
+		return 0;
+	}
+
+	__put_user(1, &sc->sc_ownedfp);
+
+	/* This will cause a "finit" to be triggered by the next
+	   attempted FPU operation by the 'current' process.
+	   */
+	clear_used_math();
+
+	unlazy_fpu(tsk, regs);
+	return __copy_to_user(&sc->sc_fpregs[0], &tsk->thread.fpu.hard,
+			      sizeof(long)*(16*2+2));
+}
+#endif /* CONFIG_SH_FPU */
+
+static int
+restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *r0_p)
+{
+	unsigned int err = 0;
+
+#define COPY(x)		err |= __get_user(regs->x, &sc->sc_##x)
+			COPY(regs[1]);
+	COPY(regs[2]);	COPY(regs[3]);
+	COPY(regs[4]);	COPY(regs[5]);
+	COPY(regs[6]);	COPY(regs[7]);
+	COPY(regs[8]);	COPY(regs[9]);
+	COPY(regs[10]);	COPY(regs[11]);
+	COPY(regs[12]);	COPY(regs[13]);
+	COPY(regs[14]);	COPY(regs[15]);
+	COPY(gbr);	COPY(mach);
+	COPY(macl);	COPY(pr);
+	COPY(sr);	COPY(pc);
+#undef COPY
+
+#ifdef CONFIG_SH_FPU
+	if (current_cpu_data.flags & CPU_HAS_FPU) {
+		int owned_fp;
+		struct task_struct *tsk = current;
+
+		regs->sr |= SR_FD; /* Release FPU */
+		clear_fpu(tsk, regs);
+		clear_used_math();
+		__get_user (owned_fp, &sc->sc_ownedfp);
+		if (owned_fp)
+			err |= restore_sigcontext_fpu(sc);
+	}
+#endif
+
+	regs->tra = -1;		/* disable syscall checks */
+	err |= __get_user(*r0_p, &sc->sc_regs[0]);
+	return err;
+}
+
+asmlinkage int sys_sigreturn(unsigned long r4, unsigned long r5,
+			     unsigned long r6, unsigned long r7,
+			     struct pt_regs __regs)
+{
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+	struct sigframe __user *frame = (struct sigframe __user *)regs->regs[15];
+	sigset_t set;
+	int r0;
+
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+		goto badframe;
+
+	if (__get_user(set.sig[0], &frame->sc.oldmask)
+	    || (_NSIG_WORDS > 1
+		&& __copy_from_user(&set.sig[1], &frame->extramask,
+				    sizeof(frame->extramask))))
+		goto badframe;
+
+	sigdelsetmask(&set, ~_BLOCKABLE);
+
+	spin_lock_irq(&current->sighand->siglock);
+	current->blocked = set;
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+
+	if (restore_sigcontext(regs, &frame->sc, &r0))
+		goto badframe;
+	return r0;
+
+badframe:
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+
+asmlinkage int sys_rt_sigreturn(unsigned long r4, unsigned long r5,
+				unsigned long r6, unsigned long r7,
+				struct pt_regs __regs)
+{
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+	struct rt_sigframe __user *frame = (struct rt_sigframe __user *)regs->regs[15];
+	sigset_t set;
+	stack_t st;
+	int r0;
+
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+		goto badframe;
+
+	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+		goto badframe;
+
+	sigdelsetmask(&set, ~_BLOCKABLE);
+	spin_lock_irq(&current->sighand->siglock);
+	current->blocked = set;
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+
+	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0))
+		goto badframe;
+
+	if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st)))
+		goto badframe;
+	/* It is more difficult to avoid calling this function than to
+	   call it and ignore errors.  */
+	do_sigaltstack((const stack_t __user *)&st, NULL, (unsigned long)frame);
+
+	return r0;
+
+badframe:
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+
+/*
+ * Set up a signal frame.
+ */
+
+static int
+setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
+		 unsigned long mask)
+{
+	int err = 0;
+
+#define COPY(x)		err |= __put_user(regs->x, &sc->sc_##x)
+	COPY(regs[0]);	COPY(regs[1]);
+	COPY(regs[2]);	COPY(regs[3]);
+	COPY(regs[4]);	COPY(regs[5]);
+	COPY(regs[6]);	COPY(regs[7]);
+	COPY(regs[8]);	COPY(regs[9]);
+	COPY(regs[10]);	COPY(regs[11]);
+	COPY(regs[12]);	COPY(regs[13]);
+	COPY(regs[14]);	COPY(regs[15]);
+	COPY(gbr);	COPY(mach);
+	COPY(macl);	COPY(pr);
+	COPY(sr);	COPY(pc);
+#undef COPY
+
+#ifdef CONFIG_SH_FPU
+	err |= save_sigcontext_fpu(sc, regs);
+#endif
+
+	/* non-iBCS2 extensions.. */
+	err |= __put_user(mask, &sc->oldmask);
+
+	return err;
+}
+
+/*
+ * Determine which stack to use..
+ */
+static inline void __user *
+get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
+{
+	if (ka->sa.sa_flags & SA_ONSTACK) {
+		if (sas_ss_flags(sp) == 0)
+			sp = current->sas_ss_sp + current->sas_ss_size;
+	}
+
+	return (void __user *)((sp - frame_size) & -8ul);
+}
+
+/* These symbols are defined with the addresses in the vsyscall page.
+   See vsyscall-trapa.S.  */
+extern void __user __kernel_sigreturn;
+extern void __user __kernel_rt_sigreturn;
+
+static int setup_frame(int sig, struct k_sigaction *ka,
+			sigset_t *set, struct pt_regs *regs)
+{
+	struct sigframe __user *frame;
+	int err = 0;
+	int signal;
+
+	frame = get_sigframe(ka, regs->regs[15], sizeof(*frame));
+
+	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+		goto give_sigsegv;
+
+	signal = current_thread_info()->exec_domain
+		&& current_thread_info()->exec_domain->signal_invmap
+		&& sig < 32
+		? current_thread_info()->exec_domain->signal_invmap[sig]
+		: sig;
+
+	err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
+
+	if (_NSIG_WORDS > 1)
+		err |= __copy_to_user(frame->extramask, &set->sig[1],
+				      sizeof(frame->extramask));
+
+	/* Set up to return from userspace.  If provided, use a stub
+	   already in userspace.  */
+	if (ka->sa.sa_flags & SA_RESTORER) {
+		regs->pr = (unsigned long) ka->sa.sa_restorer;
+#ifdef CONFIG_VSYSCALL
+	} else if (likely(current->mm->context.vdso)) {
+		regs->pr = VDSO_SYM(&__kernel_sigreturn);
+#endif
+	} else {
+		/* Generate return code (system call to sigreturn) */
+		err |= __put_user(MOVW(7), &frame->retcode[0]);
+		err |= __put_user(TRAP_NOARG, &frame->retcode[1]);
+		err |= __put_user(OR_R0_R0, &frame->retcode[2]);
+		err |= __put_user(OR_R0_R0, &frame->retcode[3]);
+		err |= __put_user(OR_R0_R0, &frame->retcode[4]);
+		err |= __put_user(OR_R0_R0, &frame->retcode[5]);
+		err |= __put_user(OR_R0_R0, &frame->retcode[6]);
+		err |= __put_user((__NR_sigreturn), &frame->retcode[7]);
+		regs->pr = (unsigned long) frame->retcode;
+	}
+
+	if (err)
+		goto give_sigsegv;
+
+	/* Set up registers for signal handler */
+	regs->regs[15] = (unsigned long) frame;
+	regs->regs[4] = signal; /* Arg for signal handler */
+	regs->regs[5] = 0;
+	regs->regs[6] = (unsigned long) &frame->sc;
+	regs->pc = (unsigned long) ka->sa.sa_handler;
+
+	set_fs(USER_DS);
+
+	pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n",
+		 current->comm, task_pid_nr(current), frame, regs->pc, regs->pr);
+
+	flush_cache_sigtramp(regs->pr);
+
+	if ((-regs->pr & (L1_CACHE_BYTES-1)) < sizeof(frame->retcode))
+		flush_cache_sigtramp(regs->pr + L1_CACHE_BYTES);
+
+	return 0;
+
+give_sigsegv:
+	force_sigsegv(sig, current);
+	return -EFAULT;
+}
+
+static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+			   sigset_t *set, struct pt_regs *regs)
+{
+	struct rt_sigframe __user *frame;
+	int err = 0;
+	int signal;
+
+	frame = get_sigframe(ka, regs->regs[15], sizeof(*frame));
+
+	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+		goto give_sigsegv;
+
+	signal = current_thread_info()->exec_domain
+		&& current_thread_info()->exec_domain->signal_invmap
+		&& sig < 32
+		? current_thread_info()->exec_domain->signal_invmap[sig]
+		: sig;
+
+	err |= copy_siginfo_to_user(&frame->info, info);
+
+	/* Create the ucontext.  */
+	err |= __put_user(0, &frame->uc.uc_flags);
+	err |= __put_user(0, &frame->uc.uc_link);
+	err |= __put_user((void *)current->sas_ss_sp,
+			  &frame->uc.uc_stack.ss_sp);
+	err |= __put_user(sas_ss_flags(regs->regs[15]),
+			  &frame->uc.uc_stack.ss_flags);
+	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+	err |= setup_sigcontext(&frame->uc.uc_mcontext,
+			        regs, set->sig[0]);
+	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+
+	/* Set up to return from userspace.  If provided, use a stub
+	   already in userspace.  */
+	if (ka->sa.sa_flags & SA_RESTORER) {
+		regs->pr = (unsigned long) ka->sa.sa_restorer;
+#ifdef CONFIG_VSYSCALL
+	} else if (likely(current->mm->context.vdso)) {
+		regs->pr = VDSO_SYM(&__kernel_rt_sigreturn);
+#endif
+	} else {
+		/* Generate return code (system call to rt_sigreturn) */
+		err |= __put_user(MOVW(7), &frame->retcode[0]);
+		err |= __put_user(TRAP_NOARG, &frame->retcode[1]);
+		err |= __put_user(OR_R0_R0, &frame->retcode[2]);
+		err |= __put_user(OR_R0_R0, &frame->retcode[3]);
+		err |= __put_user(OR_R0_R0, &frame->retcode[4]);
+		err |= __put_user(OR_R0_R0, &frame->retcode[5]);
+		err |= __put_user(OR_R0_R0, &frame->retcode[6]);
+		err |= __put_user((__NR_rt_sigreturn), &frame->retcode[7]);
+		regs->pr = (unsigned long) frame->retcode;
+	}
+
+	if (err)
+		goto give_sigsegv;
+
+	/* Set up registers for signal handler */
+	regs->regs[15] = (unsigned long) frame;
+	regs->regs[4] = signal; /* Arg for signal handler */
+	regs->regs[5] = (unsigned long) &frame->info;
+	regs->regs[6] = (unsigned long) &frame->uc;
+	regs->pc = (unsigned long) ka->sa.sa_handler;
+
+	set_fs(USER_DS);
+
+	pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n",
+		 current->comm, task_pid_nr(current), frame, regs->pc, regs->pr);
+
+	flush_cache_sigtramp(regs->pr);
+
+	if ((-regs->pr & (L1_CACHE_BYTES-1)) < sizeof(frame->retcode))
+		flush_cache_sigtramp(regs->pr + L1_CACHE_BYTES);
+
+	return 0;
+
+give_sigsegv:
+	force_sigsegv(sig, current);
+	return -EFAULT;
+}
+
+/*
+ * OK, we're invoking a handler
+ */
+
+static int
+handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
+	      sigset_t *oldset, struct pt_regs *regs, unsigned int save_r0)
+{
+	int ret;
+
+	/* Are we from a system call? */
+	if (regs->tra >= 0) {
+		/* If so, check system call restarting.. */
+		switch (regs->regs[0]) {
+			case -ERESTART_RESTARTBLOCK:
+			case -ERESTARTNOHAND:
+				regs->regs[0] = -EINTR;
+				break;
+
+			case -ERESTARTSYS:
+				if (!(ka->sa.sa_flags & SA_RESTART)) {
+					regs->regs[0] = -EINTR;
+					break;
+				}
+			/* fallthrough */
+			case -ERESTARTNOINTR:
+				regs->regs[0] = save_r0;
+				regs->pc -= instruction_size(
+						ctrl_inw(regs->pc - 4));
+				break;
+		}
+#ifdef CONFIG_GUSA
+	} else {
+		/* gUSA handling */
+		preempt_disable();
+
+		if (regs->regs[15] >= 0xc0000000) {
+			int offset = (int)regs->regs[15];
+
+			/* Reset stack pointer: clear critical region mark */
+			regs->regs[15] = regs->regs[1];
+			if (regs->pc < regs->regs[0])
+				/* Go to rewind point #1 */
+				regs->pc = regs->regs[0] + offset -
+					instruction_size(ctrl_inw(regs->pc-4));
+		}
+
+		preempt_enable_no_resched();
+#endif
+	}
+
+	/* Set up the stack frame */
+	if (ka->sa.sa_flags & SA_SIGINFO)
+		ret = setup_rt_frame(sig, ka, info, oldset, regs);
+	else
+		ret = setup_frame(sig, ka, oldset, regs);
+
+	if (ka->sa.sa_flags & SA_ONESHOT)
+		ka->sa.sa_handler = SIG_DFL;
+
+	if (ret == 0) {
+		spin_lock_irq(&current->sighand->siglock);
+		sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+		if (!(ka->sa.sa_flags & SA_NODEFER))
+			sigaddset(&current->blocked,sig);
+		recalc_sigpending();
+		spin_unlock_irq(&current->sighand->siglock);
+	}
+
+	return ret;
+}
+
+/*
+ * Note that 'init' is a special process: it doesn't get signals it doesn't
+ * want to handle. Thus you cannot kill init even with a SIGKILL even by
+ * mistake.
+ *
+ * Note that we go through the signals twice: once to check the signals that
+ * the kernel can handle, and then we build all the user-level signal handling
+ * stack-frames in one go after that.
+ */
+static void do_signal(struct pt_regs *regs, unsigned int save_r0)
+{
+	siginfo_t info;
+	int signr;
+	struct k_sigaction ka;
+	sigset_t *oldset;
+
+	/*
+	 * We want the common case to go fast, which
+	 * is why we may in certain cases get here from
+	 * kernel mode. Just return without doing anything
+	 * if so.
+	 */
+	if (!user_mode(regs))
+		return;
+
+	if (try_to_freeze())
+		goto no_signal;
+
+	if (test_thread_flag(TIF_RESTORE_SIGMASK))
+		oldset = &current->saved_sigmask;
+	else
+		oldset = &current->blocked;
+
+	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
+	if (signr > 0) {
+		/* Whee!  Actually deliver the signal.  */
+		if (handle_signal(signr, &ka, &info, oldset,
+				  regs, save_r0) == 0) {
+			/* a signal was successfully delivered; the saved
+			 * sigmask will have been stored in the signal frame,
+			 * and will be restored by sigreturn, so we can simply
+			 * clear the TIF_RESTORE_SIGMASK flag */
+			if (test_thread_flag(TIF_RESTORE_SIGMASK))
+				clear_thread_flag(TIF_RESTORE_SIGMASK);
+		}
+
+		return;
+	}
+
+ no_signal:
+	/* Did we come from a system call? */
+	if (regs->tra >= 0) {
+		/* Restart the system call - no handlers present */
+		if (regs->regs[0] == -ERESTARTNOHAND ||
+		    regs->regs[0] == -ERESTARTSYS ||
+		    regs->regs[0] == -ERESTARTNOINTR) {
+			regs->regs[0] = save_r0;
+			regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
+		} else if (regs->regs[0] == -ERESTART_RESTARTBLOCK) {
+			regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
+			regs->regs[3] = __NR_restart_syscall;
+		}
+	}
+
+	/* if there's no signal to deliver, we just put the saved sigmask
+	 * back */
+	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+		clear_thread_flag(TIF_RESTORE_SIGMASK);
+		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+	}
+}
+
+asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0,
+				 __u32 thread_info_flags)
+{
+	/* deal with pending signal delivery */
+	if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
+		do_signal(regs, save_r0);
+}
diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c
new file mode 100644
index 000000000000..96ba81f324be
--- /dev/null
+++ b/arch/sh/kernel/signal_64.c
@@ -0,0 +1,754 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/kernel/signal.c
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003  Paul Mundt
+ * Copyright (C) 2004  Richard Curnow
+ *
+ * Started from sh version.
+ *
+ */
+#include <linux/rwsem.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/errno.h>
+#include <linux/wait.h>
+#include <linux/personality.h>
+#include <linux/freezer.h>
+#include <linux/ptrace.h>
+#include <linux/unistd.h>
+#include <linux/stddef.h>
+#include <asm/ucontext.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/cacheflush.h>
+
+#define REG_RET 9
+#define REG_ARG1 2
+#define REG_ARG2 3
+#define REG_ARG3 4
+#define REG_SP 15
+#define REG_PR 18
+#define REF_REG_RET regs->regs[REG_RET]
+#define REF_REG_SP regs->regs[REG_SP]
+#define DEREF_REG_PR regs->regs[REG_PR]
+
+#define DEBUG_SIG 0
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset);
+
+/*
+ * Atomically swap in the new signal mask, and wait for a signal.
+ */
+
+asmlinkage int
+sys_sigsuspend(old_sigset_t mask,
+	       unsigned long r3, unsigned long r4, unsigned long r5,
+	       unsigned long r6, unsigned long r7,
+	       struct pt_regs * regs)
+{
+	sigset_t saveset;
+
+	mask &= _BLOCKABLE;
+	spin_lock_irq(&current->sighand->siglock);
+	saveset = current->blocked;
+	siginitset(&current->blocked, mask);
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+
+	REF_REG_RET = -EINTR;
+	while (1) {
+		current->state = TASK_INTERRUPTIBLE;
+		schedule();
+		regs->pc += 4;    /* because sys_sigreturn decrements the pc */
+		if (do_signal(regs, &saveset)) {
+			/* pc now points at signal handler. Need to decrement
+			   it because entry.S will increment it. */
+			regs->pc -= 4;
+			return -EINTR;
+		}
+	}
+}
+
+asmlinkage int
+sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize,
+	          unsigned long r4, unsigned long r5, unsigned long r6,
+	          unsigned long r7,
+	          struct pt_regs * regs)
+{
+	sigset_t saveset, newset;
+
+	/* XXX: Don't preclude handling different sized sigset_t's.  */
+	if (sigsetsize != sizeof(sigset_t))
+		return -EINVAL;
+
+	if (copy_from_user(&newset, unewset, sizeof(newset)))
+		return -EFAULT;
+	sigdelsetmask(&newset, ~_BLOCKABLE);
+	spin_lock_irq(&current->sighand->siglock);
+	saveset = current->blocked;
+	current->blocked = newset;
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+
+	REF_REG_RET = -EINTR;
+	while (1) {
+		current->state = TASK_INTERRUPTIBLE;
+		schedule();
+		regs->pc += 4;    /* because sys_sigreturn decrements the pc */
+		if (do_signal(regs, &saveset)) {
+			/* pc now points at signal handler. Need to decrement
+			   it because entry.S will increment it. */
+			regs->pc -= 4;
+			return -EINTR;
+		}
+	}
+}
+
+asmlinkage int
+sys_sigaction(int sig, const struct old_sigaction __user *act,
+	      struct old_sigaction __user *oact)
+{
+	struct k_sigaction new_ka, old_ka;
+	int ret;
+
+	if (act) {
+		old_sigset_t mask;
+		if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
+		    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
+		    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
+			return -EFAULT;
+		__get_user(new_ka.sa.sa_flags, &act->sa_flags);
+		__get_user(mask, &act->sa_mask);
+		siginitset(&new_ka.sa.sa_mask, mask);
+	}
+
+	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+	if (!ret && oact) {
+		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
+		    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
+		    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
+			return -EFAULT;
+		__put_user(old_ka.sa.sa_flags, &oact->sa_flags);
+		__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
+	}
+
+	return ret;
+}
+
+asmlinkage int
+sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
+	        unsigned long r4, unsigned long r5, unsigned long r6,
+	        unsigned long r7,
+	        struct pt_regs * regs)
+{
+	return do_sigaltstack(uss, uoss, REF_REG_SP);
+}
+
+
+/*
+ * Do a signal return; undo the signal stack.
+ */
+
+struct sigframe
+{
+	struct sigcontext sc;
+	unsigned long extramask[_NSIG_WORDS-1];
+	long long retcode[2];
+};
+
+struct rt_sigframe
+{
+	struct siginfo __user *pinfo;
+	void *puc;
+	struct siginfo info;
+	struct ucontext uc;
+	long long retcode[2];
+};
+
+#ifdef CONFIG_SH_FPU
+static inline int
+restore_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
+{
+	int err = 0;
+	int fpvalid;
+
+	err |= __get_user (fpvalid, &sc->sc_fpvalid);
+	conditional_used_math(fpvalid);
+	if (! fpvalid)
+		return err;
+
+	if (current == last_task_used_math) {
+		last_task_used_math = NULL;
+		regs->sr |= SR_FD;
+	}
+
+	err |= __copy_from_user(&current->thread.fpu.hard, &sc->sc_fpregs[0],
+				(sizeof(long long) * 32) + (sizeof(int) * 1));
+
+	return err;
+}
+
+static inline int
+setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
+{
+	int err = 0;
+	int fpvalid;
+
+	fpvalid = !!used_math();
+	err |= __put_user(fpvalid, &sc->sc_fpvalid);
+	if (! fpvalid)
+		return err;
+
+	if (current == last_task_used_math) {
+		grab_fpu();
+		fpsave(&current->thread.fpu.hard);
+		release_fpu();
+		last_task_used_math = NULL;
+		regs->sr |= SR_FD;
+	}
+
+	err |= __copy_to_user(&sc->sc_fpregs[0], &current->thread.fpu.hard,
+			      (sizeof(long long) * 32) + (sizeof(int) * 1));
+	clear_used_math();
+
+	return err;
+}
+#else
+static inline int
+restore_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
+{
+	return 0;
+}
+static inline int
+setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
+{
+	return 0;
+}
+#endif
+
+static int
+restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, long long *r2_p)
+{
+	unsigned int err = 0;
+        unsigned long long current_sr, new_sr;
+#define SR_MASK 0xffff8cfd
+
+#define COPY(x)		err |= __get_user(regs->x, &sc->sc_##x)
+
+	COPY(regs[0]);	COPY(regs[1]);	COPY(regs[2]);	COPY(regs[3]);
+	COPY(regs[4]);	COPY(regs[5]);	COPY(regs[6]);	COPY(regs[7]);
+	COPY(regs[8]);	COPY(regs[9]);  COPY(regs[10]);	COPY(regs[11]);
+	COPY(regs[12]);	COPY(regs[13]);	COPY(regs[14]);	COPY(regs[15]);
+	COPY(regs[16]);	COPY(regs[17]);	COPY(regs[18]);	COPY(regs[19]);
+	COPY(regs[20]);	COPY(regs[21]);	COPY(regs[22]);	COPY(regs[23]);
+	COPY(regs[24]);	COPY(regs[25]);	COPY(regs[26]);	COPY(regs[27]);
+	COPY(regs[28]);	COPY(regs[29]);	COPY(regs[30]);	COPY(regs[31]);
+	COPY(regs[32]);	COPY(regs[33]);	COPY(regs[34]);	COPY(regs[35]);
+	COPY(regs[36]);	COPY(regs[37]);	COPY(regs[38]);	COPY(regs[39]);
+	COPY(regs[40]);	COPY(regs[41]);	COPY(regs[42]);	COPY(regs[43]);
+	COPY(regs[44]);	COPY(regs[45]);	COPY(regs[46]);	COPY(regs[47]);
+	COPY(regs[48]);	COPY(regs[49]);	COPY(regs[50]);	COPY(regs[51]);
+	COPY(regs[52]);	COPY(regs[53]);	COPY(regs[54]);	COPY(regs[55]);
+	COPY(regs[56]);	COPY(regs[57]);	COPY(regs[58]);	COPY(regs[59]);
+	COPY(regs[60]);	COPY(regs[61]);	COPY(regs[62]);
+	COPY(tregs[0]);	COPY(tregs[1]);	COPY(tregs[2]);	COPY(tregs[3]);
+	COPY(tregs[4]);	COPY(tregs[5]);	COPY(tregs[6]);	COPY(tregs[7]);
+
+        /* Prevent the signal handler manipulating SR in a way that can
+           crash the kernel. i.e. only allow S, Q, M, PR, SZ, FR to be
+           modified */
+        current_sr = regs->sr;
+        err |= __get_user(new_sr, &sc->sc_sr);
+        regs->sr &= SR_MASK;
+        regs->sr |= (new_sr & ~SR_MASK);
+
+	COPY(pc);
+
+#undef COPY
+
+	/* Must do this last in case it sets regs->sr.fd (i.e. after rest of sr
+	 * has been restored above.) */
+	err |= restore_sigcontext_fpu(regs, sc);
+
+	regs->syscall_nr = -1;		/* disable syscall checks */
+	err |= __get_user(*r2_p, &sc->sc_regs[REG_RET]);
+	return err;
+}
+
+asmlinkage int sys_sigreturn(unsigned long r2, unsigned long r3,
+				   unsigned long r4, unsigned long r5,
+				   unsigned long r6, unsigned long r7,
+				   struct pt_regs * regs)
+{
+	struct sigframe __user *frame = (struct sigframe __user *) (long) REF_REG_SP;
+	sigset_t set;
+	long long ret;
+
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+		goto badframe;
+
+	if (__get_user(set.sig[0], &frame->sc.oldmask)
+	    || (_NSIG_WORDS > 1
+		&& __copy_from_user(&set.sig[1], &frame->extramask,
+				    sizeof(frame->extramask))))
+		goto badframe;
+
+	sigdelsetmask(&set, ~_BLOCKABLE);
+
+	spin_lock_irq(&current->sighand->siglock);
+	current->blocked = set;
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+
+	if (restore_sigcontext(regs, &frame->sc, &ret))
+		goto badframe;
+	regs->pc -= 4;
+
+	return (int) ret;
+
+badframe:
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+
+asmlinkage int sys_rt_sigreturn(unsigned long r2, unsigned long r3,
+				unsigned long r4, unsigned long r5,
+				unsigned long r6, unsigned long r7,
+				struct pt_regs * regs)
+{
+	struct rt_sigframe __user *frame = (struct rt_sigframe __user *) (long) REF_REG_SP;
+	sigset_t set;
+	stack_t __user st;
+	long long ret;
+
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+		goto badframe;
+
+	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+		goto badframe;
+
+	sigdelsetmask(&set, ~_BLOCKABLE);
+	spin_lock_irq(&current->sighand->siglock);
+	current->blocked = set;
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+
+	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ret))
+		goto badframe;
+	regs->pc -= 4;
+
+	if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st)))
+		goto badframe;
+	/* It is more difficult to avoid calling this function than to
+	   call it and ignore errors.  */
+	do_sigaltstack(&st, NULL, REF_REG_SP);
+
+	return (int) ret;
+
+badframe:
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+
+/*
+ * Set up a signal frame.
+ */
+
+static int
+setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
+		 unsigned long mask)
+{
+	int err = 0;
+
+	/* Do this first, otherwise is this sets sr->fd, that value isn't preserved. */
+	err |= setup_sigcontext_fpu(regs, sc);
+
+#define COPY(x)		err |= __put_user(regs->x, &sc->sc_##x)
+
+	COPY(regs[0]);	COPY(regs[1]);	COPY(regs[2]);	COPY(regs[3]);
+	COPY(regs[4]);	COPY(regs[5]);	COPY(regs[6]);	COPY(regs[7]);
+	COPY(regs[8]);	COPY(regs[9]);	COPY(regs[10]);	COPY(regs[11]);
+	COPY(regs[12]);	COPY(regs[13]);	COPY(regs[14]);	COPY(regs[15]);
+	COPY(regs[16]);	COPY(regs[17]);	COPY(regs[18]);	COPY(regs[19]);
+	COPY(regs[20]);	COPY(regs[21]);	COPY(regs[22]);	COPY(regs[23]);
+	COPY(regs[24]);	COPY(regs[25]);	COPY(regs[26]);	COPY(regs[27]);
+	COPY(regs[28]);	COPY(regs[29]);	COPY(regs[30]);	COPY(regs[31]);
+	COPY(regs[32]);	COPY(regs[33]);	COPY(regs[34]);	COPY(regs[35]);
+	COPY(regs[36]);	COPY(regs[37]);	COPY(regs[38]);	COPY(regs[39]);
+	COPY(regs[40]);	COPY(regs[41]);	COPY(regs[42]);	COPY(regs[43]);
+	COPY(regs[44]);	COPY(regs[45]);	COPY(regs[46]);	COPY(regs[47]);
+	COPY(regs[48]);	COPY(regs[49]);	COPY(regs[50]);	COPY(regs[51]);
+	COPY(regs[52]);	COPY(regs[53]);	COPY(regs[54]);	COPY(regs[55]);
+	COPY(regs[56]);	COPY(regs[57]);	COPY(regs[58]);	COPY(regs[59]);
+	COPY(regs[60]);	COPY(regs[61]);	COPY(regs[62]);
+	COPY(tregs[0]);	COPY(tregs[1]);	COPY(tregs[2]);	COPY(tregs[3]);
+	COPY(tregs[4]);	COPY(tregs[5]);	COPY(tregs[6]);	COPY(tregs[7]);
+	COPY(sr);	COPY(pc);
+
+#undef COPY
+
+	err |= __put_user(mask, &sc->oldmask);
+
+	return err;
+}
+
+/*
+ * Determine which stack to use..
+ */
+static inline void __user *
+get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
+{
+	if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp))
+		sp = current->sas_ss_sp + current->sas_ss_size;
+
+	return (void __user *)((sp - frame_size) & -8ul);
+}
+
+void sa_default_restorer(void);		/* See comments below */
+void sa_default_rt_restorer(void);	/* See comments below */
+
+static void setup_frame(int sig, struct k_sigaction *ka,
+			sigset_t *set, struct pt_regs *regs)
+{
+	struct sigframe __user *frame;
+	int err = 0;
+	int signal;
+
+	frame = get_sigframe(ka, regs->regs[REG_SP], sizeof(*frame));
+
+	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+		goto give_sigsegv;
+
+	signal = current_thread_info()->exec_domain
+		&& current_thread_info()->exec_domain->signal_invmap
+		&& sig < 32
+		? current_thread_info()->exec_domain->signal_invmap[sig]
+		: sig;
+
+	err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
+
+	/* Give up earlier as i386, in case */
+	if (err)
+		goto give_sigsegv;
+
+	if (_NSIG_WORDS > 1) {
+		err |= __copy_to_user(frame->extramask, &set->sig[1],
+				      sizeof(frame->extramask)); }
+
+	/* Give up earlier as i386, in case */
+	if (err)
+		goto give_sigsegv;
+
+	/* Set up to return from userspace.  If provided, use a stub
+	   already in userspace.  */
+	if (ka->sa.sa_flags & SA_RESTORER) {
+		DEREF_REG_PR = (unsigned long) ka->sa.sa_restorer | 0x1;
+
+		/*
+		 * On SH5 all edited pointers are subject to NEFF
+		 */
+		DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
+        		 	(DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
+	} else {
+		/*
+		 * Different approach on SH5.
+	         * . Endianness independent asm code gets placed in entry.S .
+		 *   This is limited to four ASM instructions corresponding
+		 *   to two long longs in size.
+		 * . err checking is done on the else branch only
+		 * . flush_icache_range() is called upon __put_user() only
+		 * . all edited pointers are subject to NEFF
+		 * . being code, linker turns ShMedia bit on, always
+		 *   dereference index -1.
+		 */
+		DEREF_REG_PR = (unsigned long) frame->retcode | 0x01;
+		DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
+        		 	(DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
+
+		if (__copy_to_user(frame->retcode,
+			(unsigned long long)sa_default_restorer & (~1), 16) != 0)
+			goto give_sigsegv;
+
+		/* Cohere the trampoline with the I-cache. */
+		flush_cache_sigtramp(DEREF_REG_PR-1, DEREF_REG_PR-1+16);
+	}
+
+	/*
+	 * Set up registers for signal handler.
+	 * All edited pointers are subject to NEFF.
+	 */
+	regs->regs[REG_SP] = (unsigned long) frame;
+	regs->regs[REG_SP] = (regs->regs[REG_SP] & NEFF_SIGN) ?
+        		 (regs->regs[REG_SP] | NEFF_MASK) : regs->regs[REG_SP];
+	regs->regs[REG_ARG1] = signal; /* Arg for signal handler */
+
+        /* FIXME:
+           The glibc profiling support for SH-5 needs to be passed a sigcontext
+           so it can retrieve the PC.  At some point during 2003 the glibc
+           support was changed to receive the sigcontext through the 2nd
+           argument, but there are still versions of libc.so in use that use
+           the 3rd argument.  Until libc.so is stabilised, pass the sigcontext
+           through both 2nd and 3rd arguments.
+        */
+
+	regs->regs[REG_ARG2] = (unsigned long long)(unsigned long)(signed long)&frame->sc;
+	regs->regs[REG_ARG3] = (unsigned long long)(unsigned long)(signed long)&frame->sc;
+
+	regs->pc = (unsigned long) ka->sa.sa_handler;
+	regs->pc = (regs->pc & NEFF_SIGN) ? (regs->pc | NEFF_MASK) : regs->pc;
+
+	set_fs(USER_DS);
+
+#if DEBUG_SIG
+	/* Broken %016Lx */
+	printk("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",
+		signal,
+		current->comm, current->pid, frame,
+		regs->pc >> 32, regs->pc & 0xffffffff,
+		DEREF_REG_PR >> 32, DEREF_REG_PR & 0xffffffff);
+#endif
+
+	return;
+
+give_sigsegv:
+	force_sigsegv(sig, current);
+}
+
+static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+			   sigset_t *set, struct pt_regs *regs)
+{
+	struct rt_sigframe __user *frame;
+	int err = 0;
+	int signal;
+
+	frame = get_sigframe(ka, regs->regs[REG_SP], sizeof(*frame));
+
+	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+		goto give_sigsegv;
+
+	signal = current_thread_info()->exec_domain
+		&& current_thread_info()->exec_domain->signal_invmap
+		&& sig < 32
+		? current_thread_info()->exec_domain->signal_invmap[sig]
+		: sig;
+
+	err |= __put_user(&frame->info, &frame->pinfo);
+	err |= __put_user(&frame->uc, &frame->puc);
+	err |= copy_siginfo_to_user(&frame->info, info);
+
+	/* Give up earlier as i386, in case */
+	if (err)
+		goto give_sigsegv;
+
+	/* Create the ucontext.  */
+	err |= __put_user(0, &frame->uc.uc_flags);
+	err |= __put_user(0, &frame->uc.uc_link);
+	err |= __put_user((void *)current->sas_ss_sp,
+			  &frame->uc.uc_stack.ss_sp);
+	err |= __put_user(sas_ss_flags(regs->regs[REG_SP]),
+			  &frame->uc.uc_stack.ss_flags);
+	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+	err |= setup_sigcontext(&frame->uc.uc_mcontext,
+			        regs, set->sig[0]);
+	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+
+	/* Give up earlier as i386, in case */
+	if (err)
+		goto give_sigsegv;
+
+	/* Set up to return from userspace.  If provided, use a stub
+	   already in userspace.  */
+	if (ka->sa.sa_flags & SA_RESTORER) {
+		DEREF_REG_PR = (unsigned long) ka->sa.sa_restorer | 0x1;
+
+		/*
+		 * On SH5 all edited pointers are subject to NEFF
+		 */
+		DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
+        		 	(DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
+	} else {
+		/*
+		 * Different approach on SH5.
+	         * . Endianness independent asm code gets placed in entry.S .
+		 *   This is limited to four ASM instructions corresponding
+		 *   to two long longs in size.
+		 * . err checking is done on the else branch only
+		 * . flush_icache_range() is called upon __put_user() only
+		 * . all edited pointers are subject to NEFF
+		 * . being code, linker turns ShMedia bit on, always
+		 *   dereference index -1.
+		 */
+
+		DEREF_REG_PR = (unsigned long) frame->retcode | 0x01;
+		DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
+        		 	(DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
+
+		if (__copy_to_user(frame->retcode,
+			(unsigned long long)sa_default_rt_restorer & (~1), 16) != 0)
+			goto give_sigsegv;
+
+		flush_icache_range(DEREF_REG_PR-1, DEREF_REG_PR-1+15);
+	}
+
+	/*
+	 * Set up registers for signal handler.
+	 * All edited pointers are subject to NEFF.
+	 */
+	regs->regs[REG_SP] = (unsigned long) frame;
+	regs->regs[REG_SP] = (regs->regs[REG_SP] & NEFF_SIGN) ?
+        		 (regs->regs[REG_SP] | NEFF_MASK) : regs->regs[REG_SP];
+	regs->regs[REG_ARG1] = signal; /* Arg for signal handler */
+	regs->regs[REG_ARG2] = (unsigned long long)(unsigned long)(signed long)&frame->info;
+	regs->regs[REG_ARG3] = (unsigned long long)(unsigned long)(signed long)&frame->uc.uc_mcontext;
+	regs->pc = (unsigned long) ka->sa.sa_handler;
+	regs->pc = (regs->pc & NEFF_SIGN) ? (regs->pc | NEFF_MASK) : regs->pc;
+
+	set_fs(USER_DS);
+
+#if DEBUG_SIG
+	/* Broken %016Lx */
+	printk("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",
+		signal,
+		current->comm, current->pid, frame,
+		regs->pc >> 32, regs->pc & 0xffffffff,
+		DEREF_REG_PR >> 32, DEREF_REG_PR & 0xffffffff);
+#endif
+
+	return;
+
+give_sigsegv:
+	force_sigsegv(sig, current);
+}
+
+/*
+ * OK, we're invoking a handler
+ */
+
+static void
+handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
+		sigset_t *oldset, struct pt_regs * regs)
+{
+	/* Are we from a system call? */
+	if (regs->syscall_nr >= 0) {
+		/* If so, check system call restarting.. */
+		switch (regs->regs[REG_RET]) {
+			case -ERESTART_RESTARTBLOCK:
+			case -ERESTARTNOHAND:
+				regs->regs[REG_RET] = -EINTR;
+				break;
+
+			case -ERESTARTSYS:
+				if (!(ka->sa.sa_flags & SA_RESTART)) {
+					regs->regs[REG_RET] = -EINTR;
+					break;
+				}
+			/* fallthrough */
+			case -ERESTARTNOINTR:
+				/* Decode syscall # */
+				regs->regs[REG_RET] = regs->syscall_nr;
+				regs->pc -= 4;
+		}
+	}
+
+	/* Set up the stack frame */
+	if (ka->sa.sa_flags & SA_SIGINFO)
+		setup_rt_frame(sig, ka, info, oldset, regs);
+	else
+		setup_frame(sig, ka, oldset, regs);
+
+	spin_lock_irq(&current->sighand->siglock);
+	sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+	if (!(ka->sa.sa_flags & SA_NODEFER))
+		sigaddset(&current->blocked,sig);
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+}
+
+/*
+ * Note that 'init' is a special process: it doesn't get signals it doesn't
+ * want to handle. Thus you cannot kill init even with a SIGKILL even by
+ * mistake.
+ *
+ * Note that we go through the signals twice: once to check the signals that
+ * the kernel can handle, and then we build all the user-level signal handling
+ * stack-frames in one go after that.
+ */
+int do_signal(struct pt_regs *regs, sigset_t *oldset)
+{
+	siginfo_t info;
+	int signr;
+	struct k_sigaction ka;
+
+	/*
+	 * We want the common case to go fast, which
+	 * is why we may in certain cases get here from
+	 * kernel mode. Just return without doing anything
+	 * if so.
+	 */
+	if (!user_mode(regs))
+		return 1;
+
+	if (try_to_freeze())
+		goto no_signal;
+
+	if (test_thread_flag(TIF_RESTORE_SIGMASK))
+		oldset = &current->saved_sigmask;
+	else if (!oldset)
+		oldset = &current->blocked;
+
+	signr = get_signal_to_deliver(&info, &ka, regs, 0);
+
+	if (signr > 0) {
+		/* Whee!  Actually deliver the signal.  */
+		handle_signal(signr, &info, &ka, oldset, regs);
+
+		/*
+		 * If a signal was successfully delivered, the saved sigmask
+		 * is in its frame, and we can clear the TIF_RESTORE_SIGMASK
+		 * flag.
+		 */
+		if (test_thread_flag(TIF_RESTORE_SIGMASK))
+			clear_thread_flag(TIF_RESTORE_SIGMASK);
+
+		return 1;
+	}
+
+no_signal:
+	/* Did we come from a system call? */
+	if (regs->syscall_nr >= 0) {
+		/* Restart the system call - no handlers present */
+		switch (regs->regs[REG_RET]) {
+		case -ERESTARTNOHAND:
+		case -ERESTARTSYS:
+		case -ERESTARTNOINTR:
+			/* Decode Syscall # */
+			regs->regs[REG_RET] = regs->syscall_nr;
+			regs->pc -= 4;
+			break;
+
+		case -ERESTART_RESTARTBLOCK:
+			regs->regs[REG_RET] = __NR_restart_syscall;
+			regs->pc -= 4;
+			break;
+		}
+	}
+
+	/* No signal to deliver -- put the saved sigmask back */
+	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+		clear_thread_flag(TIF_RESTORE_SIGMASK);
+		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+	}
+
+	return 0;
+}
diff --git a/arch/sh64/kernel/signal.c b/arch/sh64/kernel/signal.c
deleted file mode 100644
index 79fc48cf54c6..000000000000
--- a/arch/sh64/kernel/signal.c
+++ /dev/null
@@ -1,750 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/signal.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003  Paul Mundt
- * Copyright (C) 2004  Richard Curnow
- *
- * Started from sh version.
- *
- */
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/errno.h>
-#include <linux/wait.h>
-#include <linux/personality.h>
-#include <linux/freezer.h>
-#include <linux/ptrace.h>
-#include <linux/unistd.h>
-#include <linux/stddef.h>
-#include <asm/ucontext.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-
-#define REG_RET 9
-#define REG_ARG1 2
-#define REG_ARG2 3
-#define REG_ARG3 4
-#define REG_SP 15
-#define REG_PR 18
-#define REF_REG_RET regs->regs[REG_RET]
-#define REF_REG_SP regs->regs[REG_SP]
-#define DEREF_REG_PR regs->regs[REG_PR]
-
-#define DEBUG_SIG 0
-
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset);
-
-/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-
-asmlinkage int
-sys_sigsuspend(old_sigset_t mask,
-	       unsigned long r3, unsigned long r4, unsigned long r5,
-	       unsigned long r6, unsigned long r7,
-	       struct pt_regs * regs)
-{
-	sigset_t saveset;
-
-	mask &= _BLOCKABLE;
-	spin_lock_irq(&current->sighand->siglock);
-	saveset = current->blocked;
-	siginitset(&current->blocked, mask);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	REF_REG_RET = -EINTR;
-	while (1) {
-		current->state = TASK_INTERRUPTIBLE;
-		schedule();
-		regs->pc += 4;    /* because sys_sigreturn decrements the pc */
-		if (do_signal(regs, &saveset)) {
-			/* pc now points at signal handler. Need to decrement
-			   it because entry.S will increment it. */
-			regs->pc -= 4;
-			return -EINTR;
-		}
-	}
-}
-
-asmlinkage int
-sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize,
-	          unsigned long r4, unsigned long r5, unsigned long r6,
-	          unsigned long r7,
-	          struct pt_regs * regs)
-{
-	sigset_t saveset, newset;
-
-	/* XXX: Don't preclude handling different sized sigset_t's.  */
-	if (sigsetsize != sizeof(sigset_t))
-		return -EINVAL;
-
-	if (copy_from_user(&newset, unewset, sizeof(newset)))
-		return -EFAULT;
-	sigdelsetmask(&newset, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	saveset = current->blocked;
-	current->blocked = newset;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	REF_REG_RET = -EINTR;
-	while (1) {
-		current->state = TASK_INTERRUPTIBLE;
-		schedule();
-		regs->pc += 4;    /* because sys_sigreturn decrements the pc */
-		if (do_signal(regs, &saveset)) {
-			/* pc now points at signal handler. Need to decrement
-			   it because entry.S will increment it. */
-			regs->pc -= 4;
-			return -EINTR;
-		}
-	}
-}
-
-asmlinkage int
-sys_sigaction(int sig, const struct old_sigaction __user *act,
-	      struct old_sigaction __user *oact)
-{
-	struct k_sigaction new_ka, old_ka;
-	int ret;
-
-	if (act) {
-		old_sigset_t mask;
-		if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-		    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-		    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
-			return -EFAULT;
-		__get_user(new_ka.sa.sa_flags, &act->sa_flags);
-		__get_user(mask, &act->sa_mask);
-		siginitset(&new_ka.sa.sa_mask, mask);
-	}
-
-	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
-	if (!ret && oact) {
-		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-		    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-		    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
-			return -EFAULT;
-		__put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-		__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
-	}
-
-	return ret;
-}
-
-asmlinkage int
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
-	        unsigned long r4, unsigned long r5, unsigned long r6,
-	        unsigned long r7,
-	        struct pt_regs * regs)
-{
-	return do_sigaltstack(uss, uoss, REF_REG_SP);
-}
-
-
-/*
- * Do a signal return; undo the signal stack.
- */
-
-struct sigframe
-{
-	struct sigcontext sc;
-	unsigned long extramask[_NSIG_WORDS-1];
-	long long retcode[2];
-};
-
-struct rt_sigframe
-{
-	struct siginfo __user *pinfo;
-	void *puc;
-	struct siginfo info;
-	struct ucontext uc;
-	long long retcode[2];
-};
-
-#ifdef CONFIG_SH_FPU
-static inline int
-restore_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
-{
-	int err = 0;
-	int fpvalid;
-
-	err |= __get_user (fpvalid, &sc->sc_fpvalid);
-	conditional_used_math(fpvalid);
-	if (! fpvalid)
-		return err;
-
-	if (current == last_task_used_math) {
-		last_task_used_math = NULL;
-		regs->sr |= SR_FD;
-	}
-
-	err |= __copy_from_user(&current->thread.fpu.hard, &sc->sc_fpregs[0],
-				(sizeof(long long) * 32) + (sizeof(int) * 1));
-
-	return err;
-}
-
-static inline int
-setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
-{
-	int err = 0;
-	int fpvalid;
-
-	fpvalid = !!used_math();
-	err |= __put_user(fpvalid, &sc->sc_fpvalid);
-	if (! fpvalid)
-		return err;
-
-	if (current == last_task_used_math) {
-		grab_fpu();
-		fpsave(&current->thread.fpu.hard);
-		release_fpu();
-		last_task_used_math = NULL;
-		regs->sr |= SR_FD;
-	}
-
-	err |= __copy_to_user(&sc->sc_fpregs[0], &current->thread.fpu.hard,
-			      (sizeof(long long) * 32) + (sizeof(int) * 1));
-	clear_used_math();
-
-	return err;
-}
-#else
-static inline int
-restore_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
-{}
-static inline int
-setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
-{}
-#endif
-
-static int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, long long *r2_p)
-{
-	unsigned int err = 0;
-        unsigned long long current_sr, new_sr;
-#define SR_MASK 0xffff8cfd
-
-#define COPY(x)		err |= __get_user(regs->x, &sc->sc_##x)
-
-	COPY(regs[0]);	COPY(regs[1]);	COPY(regs[2]);	COPY(regs[3]);
-	COPY(regs[4]);	COPY(regs[5]);	COPY(regs[6]);	COPY(regs[7]);
-	COPY(regs[8]);	COPY(regs[9]);  COPY(regs[10]);	COPY(regs[11]);
-	COPY(regs[12]);	COPY(regs[13]);	COPY(regs[14]);	COPY(regs[15]);
-	COPY(regs[16]);	COPY(regs[17]);	COPY(regs[18]);	COPY(regs[19]);
-	COPY(regs[20]);	COPY(regs[21]);	COPY(regs[22]);	COPY(regs[23]);
-	COPY(regs[24]);	COPY(regs[25]);	COPY(regs[26]);	COPY(regs[27]);
-	COPY(regs[28]);	COPY(regs[29]);	COPY(regs[30]);	COPY(regs[31]);
-	COPY(regs[32]);	COPY(regs[33]);	COPY(regs[34]);	COPY(regs[35]);
-	COPY(regs[36]);	COPY(regs[37]);	COPY(regs[38]);	COPY(regs[39]);
-	COPY(regs[40]);	COPY(regs[41]);	COPY(regs[42]);	COPY(regs[43]);
-	COPY(regs[44]);	COPY(regs[45]);	COPY(regs[46]);	COPY(regs[47]);
-	COPY(regs[48]);	COPY(regs[49]);	COPY(regs[50]);	COPY(regs[51]);
-	COPY(regs[52]);	COPY(regs[53]);	COPY(regs[54]);	COPY(regs[55]);
-	COPY(regs[56]);	COPY(regs[57]);	COPY(regs[58]);	COPY(regs[59]);
-	COPY(regs[60]);	COPY(regs[61]);	COPY(regs[62]);
-	COPY(tregs[0]);	COPY(tregs[1]);	COPY(tregs[2]);	COPY(tregs[3]);
-	COPY(tregs[4]);	COPY(tregs[5]);	COPY(tregs[6]);	COPY(tregs[7]);
-
-        /* Prevent the signal handler manipulating SR in a way that can
-           crash the kernel. i.e. only allow S, Q, M, PR, SZ, FR to be
-           modified */
-        current_sr = regs->sr;
-        err |= __get_user(new_sr, &sc->sc_sr);
-        regs->sr &= SR_MASK;
-        regs->sr |= (new_sr & ~SR_MASK);
-
-	COPY(pc);
-
-#undef COPY
-
-	/* Must do this last in case it sets regs->sr.fd (i.e. after rest of sr
-	 * has been restored above.) */
-	err |= restore_sigcontext_fpu(regs, sc);
-
-	regs->syscall_nr = -1;		/* disable syscall checks */
-	err |= __get_user(*r2_p, &sc->sc_regs[REG_RET]);
-	return err;
-}
-
-asmlinkage int sys_sigreturn(unsigned long r2, unsigned long r3,
-				   unsigned long r4, unsigned long r5,
-				   unsigned long r6, unsigned long r7,
-				   struct pt_regs * regs)
-{
-	struct sigframe __user *frame = (struct sigframe __user *) (long) REF_REG_SP;
-	sigset_t set;
-	long long ret;
-
-	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-		goto badframe;
-
-	if (__get_user(set.sig[0], &frame->sc.oldmask)
-	    || (_NSIG_WORDS > 1
-		&& __copy_from_user(&set.sig[1], &frame->extramask,
-				    sizeof(frame->extramask))))
-		goto badframe;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	if (restore_sigcontext(regs, &frame->sc, &ret))
-		goto badframe;
-	regs->pc -= 4;
-
-	return (int) ret;
-
-badframe:
-	force_sig(SIGSEGV, current);
-	return 0;
-}
-
-asmlinkage int sys_rt_sigreturn(unsigned long r2, unsigned long r3,
-				unsigned long r4, unsigned long r5,
-				unsigned long r6, unsigned long r7,
-				struct pt_regs * regs)
-{
-	struct rt_sigframe __user *frame = (struct rt_sigframe __user *) (long) REF_REG_SP;
-	sigset_t set;
-	stack_t __user st;
-	long long ret;
-
-	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-		goto badframe;
-
-	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
-		goto badframe;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ret))
-		goto badframe;
-	regs->pc -= 4;
-
-	if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st)))
-		goto badframe;
-	/* It is more difficult to avoid calling this function than to
-	   call it and ignore errors.  */
-	do_sigaltstack(&st, NULL, REF_REG_SP);
-
-	return (int) ret;
-
-badframe:
-	force_sig(SIGSEGV, current);
-	return 0;
-}
-
-/*
- * Set up a signal frame.
- */
-
-static int
-setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
-		 unsigned long mask)
-{
-	int err = 0;
-
-	/* Do this first, otherwise is this sets sr->fd, that value isn't preserved. */
-	err |= setup_sigcontext_fpu(regs, sc);
-
-#define COPY(x)		err |= __put_user(regs->x, &sc->sc_##x)
-
-	COPY(regs[0]);	COPY(regs[1]);	COPY(regs[2]);	COPY(regs[3]);
-	COPY(regs[4]);	COPY(regs[5]);	COPY(regs[6]);	COPY(regs[7]);
-	COPY(regs[8]);	COPY(regs[9]);	COPY(regs[10]);	COPY(regs[11]);
-	COPY(regs[12]);	COPY(regs[13]);	COPY(regs[14]);	COPY(regs[15]);
-	COPY(regs[16]);	COPY(regs[17]);	COPY(regs[18]);	COPY(regs[19]);
-	COPY(regs[20]);	COPY(regs[21]);	COPY(regs[22]);	COPY(regs[23]);
-	COPY(regs[24]);	COPY(regs[25]);	COPY(regs[26]);	COPY(regs[27]);
-	COPY(regs[28]);	COPY(regs[29]);	COPY(regs[30]);	COPY(regs[31]);
-	COPY(regs[32]);	COPY(regs[33]);	COPY(regs[34]);	COPY(regs[35]);
-	COPY(regs[36]);	COPY(regs[37]);	COPY(regs[38]);	COPY(regs[39]);
-	COPY(regs[40]);	COPY(regs[41]);	COPY(regs[42]);	COPY(regs[43]);
-	COPY(regs[44]);	COPY(regs[45]);	COPY(regs[46]);	COPY(regs[47]);
-	COPY(regs[48]);	COPY(regs[49]);	COPY(regs[50]);	COPY(regs[51]);
-	COPY(regs[52]);	COPY(regs[53]);	COPY(regs[54]);	COPY(regs[55]);
-	COPY(regs[56]);	COPY(regs[57]);	COPY(regs[58]);	COPY(regs[59]);
-	COPY(regs[60]);	COPY(regs[61]);	COPY(regs[62]);
-	COPY(tregs[0]);	COPY(tregs[1]);	COPY(tregs[2]);	COPY(tregs[3]);
-	COPY(tregs[4]);	COPY(tregs[5]);	COPY(tregs[6]);	COPY(tregs[7]);
-	COPY(sr);	COPY(pc);
-
-#undef COPY
-
-	err |= __put_user(mask, &sc->oldmask);
-
-	return err;
-}
-
-/*
- * Determine which stack to use..
- */
-static inline void __user *
-get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
-{
-	if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp))
-		sp = current->sas_ss_sp + current->sas_ss_size;
-
-	return (void __user *)((sp - frame_size) & -8ul);
-}
-
-void sa_default_restorer(void);		/* See comments below */
-void sa_default_rt_restorer(void);	/* See comments below */
-
-static void setup_frame(int sig, struct k_sigaction *ka,
-			sigset_t *set, struct pt_regs *regs)
-{
-	struct sigframe __user *frame;
-	int err = 0;
-	int signal;
-
-	frame = get_sigframe(ka, regs->regs[REG_SP], sizeof(*frame));
-
-	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-		goto give_sigsegv;
-
-	signal = current_thread_info()->exec_domain
-		&& current_thread_info()->exec_domain->signal_invmap
-		&& sig < 32
-		? current_thread_info()->exec_domain->signal_invmap[sig]
-		: sig;
-
-	err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
-
-	/* Give up earlier as i386, in case */
-	if (err)
-		goto give_sigsegv;
-
-	if (_NSIG_WORDS > 1) {
-		err |= __copy_to_user(frame->extramask, &set->sig[1],
-				      sizeof(frame->extramask)); }
-
-	/* Give up earlier as i386, in case */
-	if (err)
-		goto give_sigsegv;
-
-	/* Set up to return from userspace.  If provided, use a stub
-	   already in userspace.  */
-	if (ka->sa.sa_flags & SA_RESTORER) {
-		DEREF_REG_PR = (unsigned long) ka->sa.sa_restorer | 0x1;
-
-		/*
-		 * On SH5 all edited pointers are subject to NEFF
-		 */
-		DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
-        		 	(DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
-	} else {
-		/*
-		 * Different approach on SH5.
-	         * . Endianness independent asm code gets placed in entry.S .
-		 *   This is limited to four ASM instructions corresponding
-		 *   to two long longs in size.
-		 * . err checking is done on the else branch only
-		 * . flush_icache_range() is called upon __put_user() only
-		 * . all edited pointers are subject to NEFF
-		 * . being code, linker turns ShMedia bit on, always
-		 *   dereference index -1.
-		 */
-		DEREF_REG_PR = (unsigned long) frame->retcode | 0x01;
-		DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
-        		 	(DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
-
-		if (__copy_to_user(frame->retcode,
-			(unsigned long long)sa_default_restorer & (~1), 16) != 0)
-			goto give_sigsegv;
-
-		/* Cohere the trampoline with the I-cache. */
-		flush_cache_sigtramp(DEREF_REG_PR-1, DEREF_REG_PR-1+16);
-	}
-
-	/*
-	 * Set up registers for signal handler.
-	 * All edited pointers are subject to NEFF.
-	 */
-	regs->regs[REG_SP] = (unsigned long) frame;
-	regs->regs[REG_SP] = (regs->regs[REG_SP] & NEFF_SIGN) ?
-        		 (regs->regs[REG_SP] | NEFF_MASK) : regs->regs[REG_SP];
-	regs->regs[REG_ARG1] = signal; /* Arg for signal handler */
-
-        /* FIXME:
-           The glibc profiling support for SH-5 needs to be passed a sigcontext
-           so it can retrieve the PC.  At some point during 2003 the glibc
-           support was changed to receive the sigcontext through the 2nd
-           argument, but there are still versions of libc.so in use that use
-           the 3rd argument.  Until libc.so is stabilised, pass the sigcontext
-           through both 2nd and 3rd arguments.
-        */
-
-	regs->regs[REG_ARG2] = (unsigned long long)(unsigned long)(signed long)&frame->sc;
-	regs->regs[REG_ARG3] = (unsigned long long)(unsigned long)(signed long)&frame->sc;
-
-	regs->pc = (unsigned long) ka->sa.sa_handler;
-	regs->pc = (regs->pc & NEFF_SIGN) ? (regs->pc | NEFF_MASK) : regs->pc;
-
-	set_fs(USER_DS);
-
-#if DEBUG_SIG
-	/* Broken %016Lx */
-	printk("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",
-		signal,
-		current->comm, current->pid, frame,
-		regs->pc >> 32, regs->pc & 0xffffffff,
-		DEREF_REG_PR >> 32, DEREF_REG_PR & 0xffffffff);
-#endif
-
-	return;
-
-give_sigsegv:
-	force_sigsegv(sig, current);
-}
-
-static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
-			   sigset_t *set, struct pt_regs *regs)
-{
-	struct rt_sigframe __user *frame;
-	int err = 0;
-	int signal;
-
-	frame = get_sigframe(ka, regs->regs[REG_SP], sizeof(*frame));
-
-	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-		goto give_sigsegv;
-
-	signal = current_thread_info()->exec_domain
-		&& current_thread_info()->exec_domain->signal_invmap
-		&& sig < 32
-		? current_thread_info()->exec_domain->signal_invmap[sig]
-		: sig;
-
-	err |= __put_user(&frame->info, &frame->pinfo);
-	err |= __put_user(&frame->uc, &frame->puc);
-	err |= copy_siginfo_to_user(&frame->info, info);
-
-	/* Give up earlier as i386, in case */
-	if (err)
-		goto give_sigsegv;
-
-	/* Create the ucontext.  */
-	err |= __put_user(0, &frame->uc.uc_flags);
-	err |= __put_user(0, &frame->uc.uc_link);
-	err |= __put_user((void *)current->sas_ss_sp,
-			  &frame->uc.uc_stack.ss_sp);
-	err |= __put_user(sas_ss_flags(regs->regs[REG_SP]),
-			  &frame->uc.uc_stack.ss_flags);
-	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
-	err |= setup_sigcontext(&frame->uc.uc_mcontext,
-			        regs, set->sig[0]);
-	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
-
-	/* Give up earlier as i386, in case */
-	if (err)
-		goto give_sigsegv;
-
-	/* Set up to return from userspace.  If provided, use a stub
-	   already in userspace.  */
-	if (ka->sa.sa_flags & SA_RESTORER) {
-		DEREF_REG_PR = (unsigned long) ka->sa.sa_restorer | 0x1;
-
-		/*
-		 * On SH5 all edited pointers are subject to NEFF
-		 */
-		DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
-        		 	(DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
-	} else {
-		/*
-		 * Different approach on SH5.
-	         * . Endianness independent asm code gets placed in entry.S .
-		 *   This is limited to four ASM instructions corresponding
-		 *   to two long longs in size.
-		 * . err checking is done on the else branch only
-		 * . flush_icache_range() is called upon __put_user() only
-		 * . all edited pointers are subject to NEFF
-		 * . being code, linker turns ShMedia bit on, always
-		 *   dereference index -1.
-		 */
-
-		DEREF_REG_PR = (unsigned long) frame->retcode | 0x01;
-		DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
-        		 	(DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
-
-		if (__copy_to_user(frame->retcode,
-			(unsigned long long)sa_default_rt_restorer & (~1), 16) != 0)
-			goto give_sigsegv;
-
-		flush_icache_range(DEREF_REG_PR-1, DEREF_REG_PR-1+15);
-	}
-
-	/*
-	 * Set up registers for signal handler.
-	 * All edited pointers are subject to NEFF.
-	 */
-	regs->regs[REG_SP] = (unsigned long) frame;
-	regs->regs[REG_SP] = (regs->regs[REG_SP] & NEFF_SIGN) ?
-        		 (regs->regs[REG_SP] | NEFF_MASK) : regs->regs[REG_SP];
-	regs->regs[REG_ARG1] = signal; /* Arg for signal handler */
-	regs->regs[REG_ARG2] = (unsigned long long)(unsigned long)(signed long)&frame->info;
-	regs->regs[REG_ARG3] = (unsigned long long)(unsigned long)(signed long)&frame->uc.uc_mcontext;
-	regs->pc = (unsigned long) ka->sa.sa_handler;
-	regs->pc = (regs->pc & NEFF_SIGN) ? (regs->pc | NEFF_MASK) : regs->pc;
-
-	set_fs(USER_DS);
-
-#if DEBUG_SIG
-	/* Broken %016Lx */
-	printk("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",
-		signal,
-		current->comm, current->pid, frame,
-		regs->pc >> 32, regs->pc & 0xffffffff,
-		DEREF_REG_PR >> 32, DEREF_REG_PR & 0xffffffff);
-#endif
-
-	return;
-
-give_sigsegv:
-	force_sigsegv(sig, current);
-}
-
-/*
- * OK, we're invoking a handler
- */
-
-static void
-handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
-		sigset_t *oldset, struct pt_regs * regs)
-{
-	/* Are we from a system call? */
-	if (regs->syscall_nr >= 0) {
-		/* If so, check system call restarting.. */
-		switch (regs->regs[REG_RET]) {
-			case -ERESTART_RESTARTBLOCK:
-			case -ERESTARTNOHAND:
-				regs->regs[REG_RET] = -EINTR;
-				break;
-
-			case -ERESTARTSYS:
-				if (!(ka->sa.sa_flags & SA_RESTART)) {
-					regs->regs[REG_RET] = -EINTR;
-					break;
-				}
-			/* fallthrough */
-			case -ERESTARTNOINTR:
-				/* Decode syscall # */
-				regs->regs[REG_RET] = regs->syscall_nr;
-				regs->pc -= 4;
-		}
-	}
-
-	/* Set up the stack frame */
-	if (ka->sa.sa_flags & SA_SIGINFO)
-		setup_rt_frame(sig, ka, info, oldset, regs);
-	else
-		setup_frame(sig, ka, oldset, regs);
-
-	spin_lock_irq(&current->sighand->siglock);
-	sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
-	if (!(ka->sa.sa_flags & SA_NODEFER))
-		sigaddset(&current->blocked,sig);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-}
-
-/*
- * Note that 'init' is a special process: it doesn't get signals it doesn't
- * want to handle. Thus you cannot kill init even with a SIGKILL even by
- * mistake.
- *
- * Note that we go through the signals twice: once to check the signals that
- * the kernel can handle, and then we build all the user-level signal handling
- * stack-frames in one go after that.
- */
-int do_signal(struct pt_regs *regs, sigset_t *oldset)
-{
-	siginfo_t info;
-	int signr;
-	struct k_sigaction ka;
-
-	/*
-	 * We want the common case to go fast, which
-	 * is why we may in certain cases get here from
-	 * kernel mode. Just return without doing anything
-	 * if so.
-	 */
-	if (!user_mode(regs))
-		return 1;
-
-	if (try_to_freeze())
-		goto no_signal;
-
-	if (test_thread_flag(TIF_RESTORE_SIGMASK))
-		oldset = &current->saved_sigmask;
-	else if (!oldset)
-		oldset = &current->blocked;
-
-	signr = get_signal_to_deliver(&info, &ka, regs, 0);
-
-	if (signr > 0) {
-		/* Whee!  Actually deliver the signal.  */
-		handle_signal(signr, &info, &ka, oldset, regs);
-
-		/*
-		 * If a signal was successfully delivered, the saved sigmask
-		 * is in its frame, and we can clear the TIF_RESTORE_SIGMASK
-		 * flag.
-		 */
-		if (test_thread_flag(TIF_RESTORE_SIGMASK))
-			clear_thread_flag(TIF_RESTORE_SIGMASK);
-
-		return 1;
-	}
-
-no_signal:
-	/* Did we come from a system call? */
-	if (regs->syscall_nr >= 0) {
-		/* Restart the system call - no handlers present */
-		switch (regs->regs[REG_RET]) {
-		case -ERESTARTNOHAND:
-		case -ERESTARTSYS:
-		case -ERESTARTNOINTR:
-			/* Decode Syscall # */
-			regs->regs[REG_RET] = regs->syscall_nr;
-			regs->pc -= 4;
-			break;
-
-		case -ERESTART_RESTARTBLOCK:
-			regs->regs[REG_RET] = __NR_restart_syscall;
-			regs->pc -= 4;
-			break;
-		}
-	}
-
-	/* No signal to deliver -- put the saved sigmask back */
-	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
-		clear_thread_flag(TIF_RESTORE_SIGMASK);
-		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
-	}
-
-	return 0;
-}
diff --git a/include/asm-sh/sigcontext.h b/include/asm-sh/sigcontext.h
index eb8effba2e80..8583143fa28f 100644
--- a/include/asm-sh/sigcontext.h
+++ b/include/asm-sh/sigcontext.h
@@ -4,6 +4,18 @@
 struct sigcontext {
 	unsigned long	oldmask;
 
+#if defined(__SH5__) || defined(CONFIG_CPU_SH5)
+	/* CPU registers */
+	unsigned long long sc_regs[63];
+	unsigned long long sc_tregs[8];
+	unsigned long long sc_pc;
+	unsigned long long sc_sr;
+
+	/* FPU registers */
+	unsigned long long sc_fpregs[32];
+	unsigned int sc_fpscr;
+	unsigned int sc_fpvalid;
+#else
 	/* CPU registers */
 	unsigned long sc_regs[16];
 	unsigned long sc_pc;
@@ -21,6 +33,7 @@ struct sigcontext {
 	unsigned int sc_fpul;
 	unsigned int sc_ownedfp;
 #endif
+#endif
 };
 
 #endif /* __ASM_SH_SIGCONTEXT_H */
-- 
cgit v1.2.3-59-g8ed1b


From c3c307c83c1f8bcf26412bd164eb1c994ea6c413 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sat, 10 Nov 2007 20:12:01 +0900
Subject: sh: Move arch/sh64/kernel/sys_sh64.c to arch/sh/kernel/

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile_64  |   2 +-
 arch/sh/kernel/sys_sh64.c   | 304 ++++++++++++++++++++++++++++++++++++++++++++
 arch/sh64/kernel/sys_sh64.c | 304 --------------------------------------------
 3 files changed, 305 insertions(+), 305 deletions(-)
 create mode 100644 arch/sh/kernel/sys_sh64.c
 delete mode 100644 arch/sh64/kernel/sys_sh64.c

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index 5f2711ae5468..1f27d5fd99a8 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/arch/sh/kernel/Makefile_64
@@ -1,7 +1,7 @@
 extra-y	:= head.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
-	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh.o syscalls.o \
+	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh64.o syscalls.o \
 	   time.o topology.o traps.o
 
 obj-y				+= cpu/ timers/
diff --git a/arch/sh/kernel/sys_sh64.c b/arch/sh/kernel/sys_sh64.c
new file mode 100644
index 000000000000..de0a303ba26f
--- /dev/null
+++ b/arch/sh/kernel/sys_sh64.c
@@ -0,0 +1,304 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/kernel/sys_sh64.c
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ * This file contains various random system calls that
+ * have a non-standard calling sequence on the Linux/SH5
+ * platform.
+ *
+ * Mostly taken from i386 version.
+ *
+ */
+
+#include <linux/errno.h>
+#include <linux/rwsem.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/smp.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/stat.h>
+#include <linux/mman.h>
+#include <linux/file.h>
+#include <linux/utsname.h>
+#include <linux/syscalls.h>
+#include <linux/ipc.h>
+#include <asm/uaccess.h>
+#include <asm/ptrace.h>
+#include <asm/unistd.h>
+
+#define REG_3	3
+
+/*
+ * sys_pipe() is the normal C calling standard for creating
+ * a pipe. It's not the way Unix traditionally does this, though.
+ */
+#ifdef NEW_PIPE_IMPLEMENTATION
+asmlinkage int sys_pipe(unsigned long * fildes,
+			unsigned long   dummy_r3,
+			unsigned long   dummy_r4,
+			unsigned long   dummy_r5,
+			unsigned long   dummy_r6,
+			unsigned long   dummy_r7,
+			struct pt_regs * regs)	   /* r8 = pt_regs  forced by entry.S */
+{
+	int fd[2];
+	int ret;
+
+	ret = do_pipe(fd);
+	if (ret == 0)
+		/*
+		 ***********************************************************************
+		 *   To avoid the copy_to_user we prefer to break the ABIs convention, *
+		 *   packing the valid pair of file IDs into a single register (r3);   *
+		 *   while r2 is the return code as defined by the sh5-ABIs.	       *
+		 *   BE CAREFUL: pipe stub, into glibc, must be aware of this solution *
+		 ***********************************************************************
+
+#ifdef __LITTLE_ENDIAN__
+		regs->regs[REG_3] = (((unsigned long long) fd[1]) << 32) | ((unsigned long long) fd[0]);
+#else
+		regs->regs[REG_3] = (((unsigned long long) fd[0]) << 32) | ((unsigned long long) fd[1]);
+#endif
+
+		*/
+	       /* although not very clever this is endianess independent */
+		regs->regs[REG_3] = (unsigned long long) *((unsigned long long *) fd);
+
+	return ret;
+}
+
+#else
+asmlinkage int sys_pipe(unsigned long * fildes)
+{
+        int fd[2];
+        int error;
+
+        error = do_pipe(fd);
+        if (!error) {
+                if (copy_to_user(fildes, fd, 2*sizeof(int)))
+                        error = -EFAULT;
+        }
+        return error;
+}
+
+#endif
+
+/*
+ * To avoid cache alias, we map the shard page with same color.
+ */
+#define COLOUR_ALIGN(addr)	(((addr)+SHMLBA-1)&~(SHMLBA-1))
+
+unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
+	unsigned long len, unsigned long pgoff, unsigned long flags)
+{
+	struct vm_area_struct *vma;
+
+	if (flags & MAP_FIXED) {
+		/* We do not accept a shared mapping if it would violate
+		 * cache aliasing constraints.
+		 */
+		if ((flags & MAP_SHARED) && (addr & (SHMLBA - 1)))
+			return -EINVAL;
+		return addr;
+	}
+
+	if (len > TASK_SIZE)
+		return -ENOMEM;
+	if (!addr)
+		addr = TASK_UNMAPPED_BASE;
+
+	if (flags & MAP_PRIVATE)
+		addr = PAGE_ALIGN(addr);
+	else
+		addr = COLOUR_ALIGN(addr);
+
+	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
+		/* At this point:  (!vma || addr < vma->vm_end). */
+		if (TASK_SIZE - len < addr)
+			return -ENOMEM;
+		if (!vma || addr + len <= vma->vm_start)
+			return addr;
+		addr = vma->vm_end;
+		if (!(flags & MAP_PRIVATE))
+			addr = COLOUR_ALIGN(addr);
+	}
+}
+
+/* common code for old and new mmaps */
+static inline long do_mmap2(
+	unsigned long addr, unsigned long len,
+	unsigned long prot, unsigned long flags,
+	unsigned long fd, unsigned long pgoff)
+{
+	int error = -EBADF;
+	struct file * file = NULL;
+
+	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+	if (!(flags & MAP_ANONYMOUS)) {
+		file = fget(fd);
+		if (!file)
+			goto out;
+	}
+
+	down_write(&current->mm->mmap_sem);
+	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
+	up_write(&current->mm->mmap_sem);
+
+	if (file)
+		fput(file);
+out:
+	return error;
+}
+
+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
+	unsigned long prot, unsigned long flags,
+	unsigned long fd, unsigned long pgoff)
+{
+	return do_mmap2(addr, len, prot, flags, fd, pgoff);
+}
+
+asmlinkage int old_mmap(unsigned long addr, unsigned long len,
+	unsigned long prot, unsigned long flags,
+	int fd, unsigned long off)
+{
+	if (off & ~PAGE_MASK)
+		return -EINVAL;
+	return do_mmap2(addr, len, prot, flags, fd, off>>PAGE_SHIFT);
+}
+
+/*
+ * sys_ipc() is the de-multiplexer for the SysV IPC calls..
+ *
+ * This is really horribly ugly.
+ */
+asmlinkage int sys_ipc(uint call, int first, int second,
+		       int third, void __user *ptr, long fifth)
+{
+	int version, ret;
+
+	version = call >> 16; /* hack for backward compatibility */
+	call &= 0xffff;
+
+	if (call <= SEMCTL)
+		switch (call) {
+		case SEMOP:
+			return sys_semtimedop(first, (struct sembuf __user *)ptr,
+					      second, NULL);
+		case SEMTIMEDOP:
+			return sys_semtimedop(first, (struct sembuf __user *)ptr,
+					      second,
+					      (const struct timespec __user *)fifth);
+		case SEMGET:
+			return sys_semget (first, second, third);
+		case SEMCTL: {
+			union semun fourth;
+			if (!ptr)
+				return -EINVAL;
+			if (get_user(fourth.__pad, (void * __user *) ptr))
+				return -EFAULT;
+			return sys_semctl (first, second, third, fourth);
+			}
+		default:
+			return -EINVAL;
+		}
+
+	if (call <= MSGCTL)
+		switch (call) {
+		case MSGSND:
+			return sys_msgsnd (first, (struct msgbuf __user *) ptr,
+					  second, third);
+		case MSGRCV:
+			switch (version) {
+			case 0: {
+				struct ipc_kludge tmp;
+				if (!ptr)
+					return -EINVAL;
+
+				if (copy_from_user(&tmp,
+						   (struct ipc_kludge __user *) ptr,
+						   sizeof (tmp)))
+					return -EFAULT;
+				return sys_msgrcv (first, tmp.msgp, second,
+						   tmp.msgtyp, third);
+				}
+			default:
+				return sys_msgrcv (first,
+						   (struct msgbuf __user *) ptr,
+						   second, fifth, third);
+			}
+		case MSGGET:
+			return sys_msgget ((key_t) first, second);
+		case MSGCTL:
+			return sys_msgctl (first, second,
+					   (struct msqid_ds __user *) ptr);
+		default:
+			return -EINVAL;
+		}
+	if (call <= SHMCTL)
+		switch (call) {
+		case SHMAT:
+			switch (version) {
+			default: {
+				ulong raddr;
+				ret = do_shmat (first, (char __user *) ptr,
+						 second, &raddr);
+				if (ret)
+					return ret;
+				return put_user (raddr, (ulong __user *) third);
+			}
+			case 1:	/* iBCS2 emulator entry point */
+				if (!segment_eq(get_fs(), get_ds()))
+					return -EINVAL;
+				return do_shmat (first, (char __user *) ptr,
+						  second, (ulong *) third);
+			}
+		case SHMDT:
+			return sys_shmdt ((char __user *)ptr);
+		case SHMGET:
+			return sys_shmget (first, second, third);
+		case SHMCTL:
+			return sys_shmctl (first, second,
+					   (struct shmid_ds __user *) ptr);
+		default:
+			return -EINVAL;
+		}
+
+	return -EINVAL;
+}
+
+asmlinkage int sys_uname(struct old_utsname * name)
+{
+	int err;
+	if (!name)
+		return -EFAULT;
+	down_read(&uts_sem);
+	err = copy_to_user(name, utsname(), sizeof (*name));
+	up_read(&uts_sem);
+	return err?-EFAULT:0;
+}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+	register unsigned long __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_execve);
+	register unsigned long __sc2 __asm__ ("r2") = (unsigned long) filename;
+	register unsigned long __sc3 __asm__ ("r3") = (unsigned long) argv;
+	register unsigned long __sc4 __asm__ ("r4") = (unsigned long) envp;
+	__asm__ __volatile__ ("trapa	%1 !\t\t\t execve(%2,%3,%4)"
+	: "=r" (__sc0)
+	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) );
+	__asm__ __volatile__ ("!dummy	%0 %1 %2 %3"
+	: : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) : "memory");
+	return __sc0;
+}
diff --git a/arch/sh64/kernel/sys_sh64.c b/arch/sh64/kernel/sys_sh64.c
deleted file mode 100644
index de0a303ba26f..000000000000
--- a/arch/sh64/kernel/sys_sh64.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/sys_sh64.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- *
- * This file contains various random system calls that
- * have a non-standard calling sequence on the Linux/SH5
- * platform.
- *
- * Mostly taken from i386 version.
- *
- */
-
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/smp.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/stat.h>
-#include <linux/mman.h>
-#include <linux/file.h>
-#include <linux/utsname.h>
-#include <linux/syscalls.h>
-#include <linux/ipc.h>
-#include <asm/uaccess.h>
-#include <asm/ptrace.h>
-#include <asm/unistd.h>
-
-#define REG_3	3
-
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way Unix traditionally does this, though.
- */
-#ifdef NEW_PIPE_IMPLEMENTATION
-asmlinkage int sys_pipe(unsigned long * fildes,
-			unsigned long   dummy_r3,
-			unsigned long   dummy_r4,
-			unsigned long   dummy_r5,
-			unsigned long   dummy_r6,
-			unsigned long   dummy_r7,
-			struct pt_regs * regs)	   /* r8 = pt_regs  forced by entry.S */
-{
-	int fd[2];
-	int ret;
-
-	ret = do_pipe(fd);
-	if (ret == 0)
-		/*
-		 ***********************************************************************
-		 *   To avoid the copy_to_user we prefer to break the ABIs convention, *
-		 *   packing the valid pair of file IDs into a single register (r3);   *
-		 *   while r2 is the return code as defined by the sh5-ABIs.	       *
-		 *   BE CAREFUL: pipe stub, into glibc, must be aware of this solution *
-		 ***********************************************************************
-
-#ifdef __LITTLE_ENDIAN__
-		regs->regs[REG_3] = (((unsigned long long) fd[1]) << 32) | ((unsigned long long) fd[0]);
-#else
-		regs->regs[REG_3] = (((unsigned long long) fd[0]) << 32) | ((unsigned long long) fd[1]);
-#endif
-
-		*/
-	       /* although not very clever this is endianess independent */
-		regs->regs[REG_3] = (unsigned long long) *((unsigned long long *) fd);
-
-	return ret;
-}
-
-#else
-asmlinkage int sys_pipe(unsigned long * fildes)
-{
-        int fd[2];
-        int error;
-
-        error = do_pipe(fd);
-        if (!error) {
-                if (copy_to_user(fildes, fd, 2*sizeof(int)))
-                        error = -EFAULT;
-        }
-        return error;
-}
-
-#endif
-
-/*
- * To avoid cache alias, we map the shard page with same color.
- */
-#define COLOUR_ALIGN(addr)	(((addr)+SHMLBA-1)&~(SHMLBA-1))
-
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
-	unsigned long len, unsigned long pgoff, unsigned long flags)
-{
-	struct vm_area_struct *vma;
-
-	if (flags & MAP_FIXED) {
-		/* We do not accept a shared mapping if it would violate
-		 * cache aliasing constraints.
-		 */
-		if ((flags & MAP_SHARED) && (addr & (SHMLBA - 1)))
-			return -EINVAL;
-		return addr;
-	}
-
-	if (len > TASK_SIZE)
-		return -ENOMEM;
-	if (!addr)
-		addr = TASK_UNMAPPED_BASE;
-
-	if (flags & MAP_PRIVATE)
-		addr = PAGE_ALIGN(addr);
-	else
-		addr = COLOUR_ALIGN(addr);
-
-	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (TASK_SIZE - len < addr)
-			return -ENOMEM;
-		if (!vma || addr + len <= vma->vm_start)
-			return addr;
-		addr = vma->vm_end;
-		if (!(flags & MAP_PRIVATE))
-			addr = COLOUR_ALIGN(addr);
-	}
-}
-
-/* common code for old and new mmaps */
-static inline long do_mmap2(
-	unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags,
-	unsigned long fd, unsigned long pgoff)
-{
-	int error = -EBADF;
-	struct file * file = NULL;
-
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-	if (!(flags & MAP_ANONYMOUS)) {
-		file = fget(fd);
-		if (!file)
-			goto out;
-	}
-
-	down_write(&current->mm->mmap_sem);
-	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-	up_write(&current->mm->mmap_sem);
-
-	if (file)
-		fput(file);
-out:
-	return error;
-}
-
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags,
-	unsigned long fd, unsigned long pgoff)
-{
-	return do_mmap2(addr, len, prot, flags, fd, pgoff);
-}
-
-asmlinkage int old_mmap(unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags,
-	int fd, unsigned long off)
-{
-	if (off & ~PAGE_MASK)
-		return -EINVAL;
-	return do_mmap2(addr, len, prot, flags, fd, off>>PAGE_SHIFT);
-}
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc(uint call, int first, int second,
-		       int third, void __user *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	if (call <= SEMCTL)
-		switch (call) {
-		case SEMOP:
-			return sys_semtimedop(first, (struct sembuf __user *)ptr,
-					      second, NULL);
-		case SEMTIMEDOP:
-			return sys_semtimedop(first, (struct sembuf __user *)ptr,
-					      second,
-					      (const struct timespec __user *)fifth);
-		case SEMGET:
-			return sys_semget (first, second, third);
-		case SEMCTL: {
-			union semun fourth;
-			if (!ptr)
-				return -EINVAL;
-			if (get_user(fourth.__pad, (void * __user *) ptr))
-				return -EFAULT;
-			return sys_semctl (first, second, third, fourth);
-			}
-		default:
-			return -EINVAL;
-		}
-
-	if (call <= MSGCTL)
-		switch (call) {
-		case MSGSND:
-			return sys_msgsnd (first, (struct msgbuf __user *) ptr,
-					  second, third);
-		case MSGRCV:
-			switch (version) {
-			case 0: {
-				struct ipc_kludge tmp;
-				if (!ptr)
-					return -EINVAL;
-
-				if (copy_from_user(&tmp,
-						   (struct ipc_kludge __user *) ptr,
-						   sizeof (tmp)))
-					return -EFAULT;
-				return sys_msgrcv (first, tmp.msgp, second,
-						   tmp.msgtyp, third);
-				}
-			default:
-				return sys_msgrcv (first,
-						   (struct msgbuf __user *) ptr,
-						   second, fifth, third);
-			}
-		case MSGGET:
-			return sys_msgget ((key_t) first, second);
-		case MSGCTL:
-			return sys_msgctl (first, second,
-					   (struct msqid_ds __user *) ptr);
-		default:
-			return -EINVAL;
-		}
-	if (call <= SHMCTL)
-		switch (call) {
-		case SHMAT:
-			switch (version) {
-			default: {
-				ulong raddr;
-				ret = do_shmat (first, (char __user *) ptr,
-						 second, &raddr);
-				if (ret)
-					return ret;
-				return put_user (raddr, (ulong __user *) third);
-			}
-			case 1:	/* iBCS2 emulator entry point */
-				if (!segment_eq(get_fs(), get_ds()))
-					return -EINVAL;
-				return do_shmat (first, (char __user *) ptr,
-						  second, (ulong *) third);
-			}
-		case SHMDT:
-			return sys_shmdt ((char __user *)ptr);
-		case SHMGET:
-			return sys_shmget (first, second, third);
-		case SHMCTL:
-			return sys_shmctl (first, second,
-					   (struct shmid_ds __user *) ptr);
-		default:
-			return -EINVAL;
-		}
-
-	return -EINVAL;
-}
-
-asmlinkage int sys_uname(struct old_utsname * name)
-{
-	int err;
-	if (!name)
-		return -EFAULT;
-	down_read(&uts_sem);
-	err = copy_to_user(name, utsname(), sizeof (*name));
-	up_read(&uts_sem);
-	return err?-EFAULT:0;
-}
-
-/*
- * Do a system call from kernel instead of calling sys_execve so we
- * end up with proper pt_regs.
- */
-int kernel_execve(const char *filename, char *const argv[], char *const envp[])
-{
-	register unsigned long __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_execve);
-	register unsigned long __sc2 __asm__ ("r2") = (unsigned long) filename;
-	register unsigned long __sc3 __asm__ ("r3") = (unsigned long) argv;
-	register unsigned long __sc4 __asm__ ("r4") = (unsigned long) envp;
-	__asm__ __volatile__ ("trapa	%1 !\t\t\t execve(%2,%3,%4)"
-	: "=r" (__sc0)
-	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) );
-	__asm__ __volatile__ ("!dummy	%0 %1 %2 %3"
-	: : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) : "memory");
-	return __sc0;
-}
-- 
cgit v1.2.3-59-g8ed1b


From 2f75fbf16bd87f36f3e72396b603bc6689e04be4 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sat, 10 Nov 2007 20:14:15 +0900
Subject: sh: Move in the SH-5 traps.c impl.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile_32 |   2 +-
 arch/sh/kernel/Makefile_64 |   2 +-
 arch/sh/kernel/traps.c     | 947 -------------------------------------------
 arch/sh/kernel/traps_32.c  | 947 +++++++++++++++++++++++++++++++++++++++++++
 arch/sh/kernel/traps_64.c  | 981 ++++++++++++++++++++++++++++++++++++++++++++
 arch/sh64/kernel/traps.c   | 982 ---------------------------------------------
 6 files changed, 1930 insertions(+), 1931 deletions(-)
 delete mode 100644 arch/sh/kernel/traps.c
 create mode 100644 arch/sh/kernel/traps_32.c
 create mode 100644 arch/sh/kernel/traps_64.c
 delete mode 100644 arch/sh64/kernel/traps.c

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index bad6bf5ac478..29b44eb3b934 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/arch/sh/kernel/Makefile_32
@@ -6,7 +6,7 @@ extra-y	:= head.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_32.o \
 	   ptrace_32.o semaphore.o setup.o signal_32.o sys_sh.o syscalls.o \
-	   time.o topology.o traps.o
+	   time.o topology.o traps_32.o
 
 obj-y				+= cpu/ timers/
 obj-$(CONFIG_VSYSCALL)		+= vsyscall/
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index 1f27d5fd99a8..fb87d642d1c1 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/arch/sh/kernel/Makefile_64
@@ -2,7 +2,7 @@ extra-y	:= head.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
 	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh64.o syscalls.o \
-	   time.o topology.o traps.o
+	   time.o topology.o traps_64.o
 
 obj-y				+= cpu/ timers/
 obj-$(CONFIG_VSYSCALL)		+= vsyscall/
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
deleted file mode 100644
index cf99111cb33f..000000000000
--- a/arch/sh/kernel/traps.c
+++ /dev/null
@@ -1,947 +0,0 @@
-/*
- * 'traps.c' handles hardware traps and faults after we have saved some
- * state in 'entry.S'.
- *
- *  SuperH version: Copyright (C) 1999 Niibe Yutaka
- *                  Copyright (C) 2000 Philipp Rumpf
- *                  Copyright (C) 2000 David Howells
- *                  Copyright (C) 2002 - 2007 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/kernel.h>
-#include <linux/ptrace.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/module.h>
-#include <linux/kallsyms.h>
-#include <linux/io.h>
-#include <linux/bug.h>
-#include <linux/debug_locks.h>
-#include <linux/kdebug.h>
-#include <linux/kexec.h>
-#include <linux/limits.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#ifdef CONFIG_SH_KGDB
-#include <asm/kgdb.h>
-#define CHK_REMOTE_DEBUG(regs)			\
-{						\
-	if (kgdb_debug_hook && !user_mode(regs))\
-		(*kgdb_debug_hook)(regs);       \
-}
-#else
-#define CHK_REMOTE_DEBUG(regs)
-#endif
-
-#ifdef CONFIG_CPU_SH2
-# define TRAP_RESERVED_INST	4
-# define TRAP_ILLEGAL_SLOT_INST	6
-# define TRAP_ADDRESS_ERROR	9
-# ifdef CONFIG_CPU_SH2A
-#  define TRAP_DIVZERO_ERROR	17
-#  define TRAP_DIVOVF_ERROR	18
-# endif
-#else
-#define TRAP_RESERVED_INST	12
-#define TRAP_ILLEGAL_SLOT_INST	13
-#endif
-
-static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
-{
-	unsigned long p;
-	int i;
-
-	printk("%s(0x%08lx to 0x%08lx)\n", str, bottom, top);
-
-	for (p = bottom & ~31; p < top; ) {
-		printk("%04lx: ", p & 0xffff);
-
-		for (i = 0; i < 8; i++, p += 4) {
-			unsigned int val;
-
-			if (p < bottom || p >= top)
-				printk("         ");
-			else {
-				if (__get_user(val, (unsigned int __user *)p)) {
-					printk("\n");
-					return;
-				}
-				printk("%08x ", val);
-			}
-		}
-		printk("\n");
-	}
-}
-
-static DEFINE_SPINLOCK(die_lock);
-
-void die(const char * str, struct pt_regs * regs, long err)
-{
-	static int die_counter;
-
-	oops_enter();
-
-	console_verbose();
-	spin_lock_irq(&die_lock);
-	bust_spinlocks(1);
-
-	printk("%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter);
-
-	CHK_REMOTE_DEBUG(regs);
-	print_modules();
-	show_regs(regs);
-
-	printk("Process: %s (pid: %d, stack limit = %p)\n", current->comm,
-			task_pid_nr(current), task_stack_page(current) + 1);
-
-	if (!user_mode(regs) || in_interrupt())
-		dump_mem("Stack: ", regs->regs[15], THREAD_SIZE +
-			 (unsigned long)task_stack_page(current));
-
-	bust_spinlocks(0);
-	add_taint(TAINT_DIE);
-	spin_unlock_irq(&die_lock);
-
-	if (kexec_should_crash(current))
-		crash_kexec(regs);
-
-	if (in_interrupt())
-		panic("Fatal exception in interrupt");
-
-	if (panic_on_oops)
-		panic("Fatal exception");
-
-	oops_exit();
-	do_exit(SIGSEGV);
-}
-
-static inline void die_if_kernel(const char *str, struct pt_regs *regs,
-				 long err)
-{
-	if (!user_mode(regs))
-		die(str, regs, err);
-}
-
-/*
- * try and fix up kernelspace address errors
- * - userspace errors just cause EFAULT to be returned, resulting in SEGV
- * - kernel/userspace interfaces cause a jump to an appropriate handler
- * - other kernel errors are bad
- * - return 0 if fixed-up, -EFAULT if non-fatal (to the kernel) fault
- */
-static int die_if_no_fixup(const char * str, struct pt_regs * regs, long err)
-{
-	if (!user_mode(regs)) {
-		const struct exception_table_entry *fixup;
-		fixup = search_exception_tables(regs->pc);
-		if (fixup) {
-			regs->pc = fixup->fixup;
-			return 0;
-		}
-		die(str, regs, err);
-	}
-	return -EFAULT;
-}
-
-/*
- * handle an instruction that does an unaligned memory access by emulating the
- * desired behaviour
- * - note that PC _may not_ point to the faulting instruction
- *   (if that instruction is in a branch delay slot)
- * - return 0 if emulation okay, -EFAULT on existential error
- */
-static int handle_unaligned_ins(u16 instruction, struct pt_regs *regs)
-{
-	int ret, index, count;
-	unsigned long *rm, *rn;
-	unsigned char *src, *dst;
-
-	index = (instruction>>8)&15;	/* 0x0F00 */
-	rn = &regs->regs[index];
-
-	index = (instruction>>4)&15;	/* 0x00F0 */
-	rm = &regs->regs[index];
-
-	count = 1<<(instruction&3);
-
-	ret = -EFAULT;
-	switch (instruction>>12) {
-	case 0: /* mov.[bwl] to/from memory via r0+rn */
-		if (instruction & 8) {
-			/* from memory */
-			src = (unsigned char*) *rm;
-			src += regs->regs[0];
-			dst = (unsigned char*) rn;
-			*(unsigned long*)dst = 0;
-
-#ifdef __LITTLE_ENDIAN__
-			if (copy_from_user(dst, src, count))
-				goto fetch_fault;
-
-			if ((count == 2) && dst[1] & 0x80) {
-				dst[2] = 0xff;
-				dst[3] = 0xff;
-			}
-#else
-			dst += 4-count;
-
-			if (__copy_user(dst, src, count))
-				goto fetch_fault;
-
-			if ((count == 2) && dst[2] & 0x80) {
-				dst[0] = 0xff;
-				dst[1] = 0xff;
-			}
-#endif
-		} else {
-			/* to memory */
-			src = (unsigned char*) rm;
-#if !defined(__LITTLE_ENDIAN__)
-			src += 4-count;
-#endif
-			dst = (unsigned char*) *rn;
-			dst += regs->regs[0];
-
-			if (copy_to_user(dst, src, count))
-				goto fetch_fault;
-		}
-		ret = 0;
-		break;
-
-	case 1: /* mov.l Rm,@(disp,Rn) */
-		src = (unsigned char*) rm;
-		dst = (unsigned char*) *rn;
-		dst += (instruction&0x000F)<<2;
-
-		if (copy_to_user(dst,src,4))
-			goto fetch_fault;
-		ret = 0;
-		break;
-
-	case 2: /* mov.[bwl] to memory, possibly with pre-decrement */
-		if (instruction & 4)
-			*rn -= count;
-		src = (unsigned char*) rm;
-		dst = (unsigned char*) *rn;
-#if !defined(__LITTLE_ENDIAN__)
-		src += 4-count;
-#endif
-		if (copy_to_user(dst, src, count))
-			goto fetch_fault;
-		ret = 0;
-		break;
-
-	case 5: /* mov.l @(disp,Rm),Rn */
-		src = (unsigned char*) *rm;
-		src += (instruction&0x000F)<<2;
-		dst = (unsigned char*) rn;
-		*(unsigned long*)dst = 0;
-
-		if (copy_from_user(dst,src,4))
-			goto fetch_fault;
-		ret = 0;
-		break;
-
-	case 6:	/* mov.[bwl] from memory, possibly with post-increment */
-		src = (unsigned char*) *rm;
-		if (instruction & 4)
-			*rm += count;
-		dst = (unsigned char*) rn;
-		*(unsigned long*)dst = 0;
-
-#ifdef __LITTLE_ENDIAN__
-		if (copy_from_user(dst, src, count))
-			goto fetch_fault;
-
-		if ((count == 2) && dst[1] & 0x80) {
-			dst[2] = 0xff;
-			dst[3] = 0xff;
-		}
-#else
-		dst += 4-count;
-
-		if (copy_from_user(dst, src, count))
-			goto fetch_fault;
-
-		if ((count == 2) && dst[2] & 0x80) {
-			dst[0] = 0xff;
-			dst[1] = 0xff;
-		}
-#endif
-		ret = 0;
-		break;
-
-	case 8:
-		switch ((instruction&0xFF00)>>8) {
-		case 0x81: /* mov.w R0,@(disp,Rn) */
-			src = (unsigned char*) &regs->regs[0];
-#if !defined(__LITTLE_ENDIAN__)
-			src += 2;
-#endif
-			dst = (unsigned char*) *rm; /* called Rn in the spec */
-			dst += (instruction&0x000F)<<1;
-
-			if (copy_to_user(dst, src, 2))
-				goto fetch_fault;
-			ret = 0;
-			break;
-
-		case 0x85: /* mov.w @(disp,Rm),R0 */
-			src = (unsigned char*) *rm;
-			src += (instruction&0x000F)<<1;
-			dst = (unsigned char*) &regs->regs[0];
-			*(unsigned long*)dst = 0;
-
-#if !defined(__LITTLE_ENDIAN__)
-			dst += 2;
-#endif
-
-			if (copy_from_user(dst, src, 2))
-				goto fetch_fault;
-
-#ifdef __LITTLE_ENDIAN__
-			if (dst[1] & 0x80) {
-				dst[2] = 0xff;
-				dst[3] = 0xff;
-			}
-#else
-			if (dst[2] & 0x80) {
-				dst[0] = 0xff;
-				dst[1] = 0xff;
-			}
-#endif
-			ret = 0;
-			break;
-		}
-		break;
-	}
-	return ret;
-
- fetch_fault:
-	/* Argh. Address not only misaligned but also non-existent.
-	 * Raise an EFAULT and see if it's trapped
-	 */
-	return die_if_no_fixup("Fault in unaligned fixup", regs, 0);
-}
-
-/*
- * emulate the instruction in the delay slot
- * - fetches the instruction from PC+2
- */
-static inline int handle_unaligned_delayslot(struct pt_regs *regs)
-{
-	u16 instruction;
-
-	if (copy_from_user(&instruction, (u16 *)(regs->pc+2), 2)) {
-		/* the instruction-fetch faulted */
-		if (user_mode(regs))
-			return -EFAULT;
-
-		/* kernel */
-		die("delay-slot-insn faulting in handle_unaligned_delayslot",
-		    regs, 0);
-	}
-
-	return handle_unaligned_ins(instruction,regs);
-}
-
-/*
- * handle an instruction that does an unaligned memory access
- * - have to be careful of branch delay-slot instructions that fault
- *  SH3:
- *   - if the branch would be taken PC points to the branch
- *   - if the branch would not be taken, PC points to delay-slot
- *  SH4:
- *   - PC always points to delayed branch
- * - return 0 if handled, -EFAULT if failed (may not return if in kernel)
- */
-
-/* Macros to determine offset from current PC for branch instructions */
-/* Explicit type coercion is used to force sign extension where needed */
-#define SH_PC_8BIT_OFFSET(instr) ((((signed char)(instr))*2) + 4)
-#define SH_PC_12BIT_OFFSET(instr) ((((signed short)(instr<<4))>>3) + 4)
-
-/*
- * XXX: SH-2A needs this too, but it needs an overhaul thanks to mixed 32-bit
- * opcodes..
- */
-#ifndef CONFIG_CPU_SH2A
-static int handle_unaligned_notify_count = 10;
-
-static int handle_unaligned_access(u16 instruction, struct pt_regs *regs)
-{
-	u_int rm;
-	int ret, index;
-
-	index = (instruction>>8)&15;	/* 0x0F00 */
-	rm = regs->regs[index];
-
-	/* shout about the first ten userspace fixups */
-	if (user_mode(regs) && handle_unaligned_notify_count>0) {
-		handle_unaligned_notify_count--;
-
-		printk(KERN_NOTICE "Fixing up unaligned userspace access "
-		       "in \"%s\" pid=%d pc=0x%p ins=0x%04hx\n",
-		       current->comm, task_pid_nr(current),
-		       (u16 *)regs->pc, instruction);
-	}
-
-	ret = -EFAULT;
-	switch (instruction&0xF000) {
-	case 0x0000:
-		if (instruction==0x000B) {
-			/* rts */
-			ret = handle_unaligned_delayslot(regs);
-			if (ret==0)
-				regs->pc = regs->pr;
-		}
-		else if ((instruction&0x00FF)==0x0023) {
-			/* braf @Rm */
-			ret = handle_unaligned_delayslot(regs);
-			if (ret==0)
-				regs->pc += rm + 4;
-		}
-		else if ((instruction&0x00FF)==0x0003) {
-			/* bsrf @Rm */
-			ret = handle_unaligned_delayslot(regs);
-			if (ret==0) {
-				regs->pr = regs->pc + 4;
-				regs->pc += rm + 4;
-			}
-		}
-		else {
-			/* mov.[bwl] to/from memory via r0+rn */
-			goto simple;
-		}
-		break;
-
-	case 0x1000: /* mov.l Rm,@(disp,Rn) */
-		goto simple;
-
-	case 0x2000: /* mov.[bwl] to memory, possibly with pre-decrement */
-		goto simple;
-
-	case 0x4000:
-		if ((instruction&0x00FF)==0x002B) {
-			/* jmp @Rm */
-			ret = handle_unaligned_delayslot(regs);
-			if (ret==0)
-				regs->pc = rm;
-		}
-		else if ((instruction&0x00FF)==0x000B) {
-			/* jsr @Rm */
-			ret = handle_unaligned_delayslot(regs);
-			if (ret==0) {
-				regs->pr = regs->pc + 4;
-				regs->pc = rm;
-			}
-		}
-		else {
-			/* mov.[bwl] to/from memory via r0+rn */
-			goto simple;
-		}
-		break;
-
-	case 0x5000: /* mov.l @(disp,Rm),Rn */
-		goto simple;
-
-	case 0x6000: /* mov.[bwl] from memory, possibly with post-increment */
-		goto simple;
-
-	case 0x8000: /* bf lab, bf/s lab, bt lab, bt/s lab */
-		switch (instruction&0x0F00) {
-		case 0x0100: /* mov.w R0,@(disp,Rm) */
-			goto simple;
-		case 0x0500: /* mov.w @(disp,Rm),R0 */
-			goto simple;
-		case 0x0B00: /* bf   lab - no delayslot*/
-			break;
-		case 0x0F00: /* bf/s lab */
-			ret = handle_unaligned_delayslot(regs);
-			if (ret==0) {
-#if defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB)
-				if ((regs->sr & 0x00000001) != 0)
-					regs->pc += 4; /* next after slot */
-				else
-#endif
-					regs->pc += SH_PC_8BIT_OFFSET(instruction);
-			}
-			break;
-		case 0x0900: /* bt   lab - no delayslot */
-			break;
-		case 0x0D00: /* bt/s lab */
-			ret = handle_unaligned_delayslot(regs);
-			if (ret==0) {
-#if defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB)
-				if ((regs->sr & 0x00000001) == 0)
-					regs->pc += 4; /* next after slot */
-				else
-#endif
-					regs->pc += SH_PC_8BIT_OFFSET(instruction);
-			}
-			break;
-		}
-		break;
-
-	case 0xA000: /* bra label */
-		ret = handle_unaligned_delayslot(regs);
-		if (ret==0)
-			regs->pc += SH_PC_12BIT_OFFSET(instruction);
-		break;
-
-	case 0xB000: /* bsr label */
-		ret = handle_unaligned_delayslot(regs);
-		if (ret==0) {
-			regs->pr = regs->pc + 4;
-			regs->pc += SH_PC_12BIT_OFFSET(instruction);
-		}
-		break;
-	}
-	return ret;
-
-	/* handle non-delay-slot instruction */
- simple:
-	ret = handle_unaligned_ins(instruction,regs);
-	if (ret==0)
-		regs->pc += instruction_size(instruction);
-	return ret;
-}
-#endif /* CONFIG_CPU_SH2A */
-
-#ifdef CONFIG_CPU_HAS_SR_RB
-#define lookup_exception_vector(x)	\
-	__asm__ __volatile__ ("stc r2_bank, %0\n\t" : "=r" ((x)))
-#else
-#define lookup_exception_vector(x)	\
-	__asm__ __volatile__ ("mov r4, %0\n\t" : "=r" ((x)))
-#endif
-
-/*
- * Handle various address error exceptions:
- *  - instruction address error:
- *       misaligned PC
- *       PC >= 0x80000000 in user mode
- *  - data address error (read and write)
- *       misaligned data access
- *       access to >= 0x80000000 is user mode
- * Unfortuntaly we can't distinguish between instruction address error
- * and data address errors caused by read accesses.
- */
-asmlinkage void do_address_error(struct pt_regs *regs,
-				 unsigned long writeaccess,
-				 unsigned long address)
-{
-	unsigned long error_code = 0;
-	mm_segment_t oldfs;
-	siginfo_t info;
-#ifndef CONFIG_CPU_SH2A
-	u16 instruction;
-	int tmp;
-#endif
-
-	/* Intentional ifdef */
-#ifdef CONFIG_CPU_HAS_SR_RB
-	lookup_exception_vector(error_code);
-#endif
-
-	oldfs = get_fs();
-
-	if (user_mode(regs)) {
-		int si_code = BUS_ADRERR;
-
-		local_irq_enable();
-
-		/* bad PC is not something we can fix */
-		if (regs->pc & 1) {
-			si_code = BUS_ADRALN;
-			goto uspace_segv;
-		}
-
-#ifndef CONFIG_CPU_SH2A
-		set_fs(USER_DS);
-		if (copy_from_user(&instruction, (u16 *)(regs->pc), 2)) {
-			/* Argh. Fault on the instruction itself.
-			   This should never happen non-SMP
-			*/
-			set_fs(oldfs);
-			goto uspace_segv;
-		}
-
-		tmp = handle_unaligned_access(instruction, regs);
-		set_fs(oldfs);
-
-		if (tmp==0)
-			return; /* sorted */
-#endif
-
-uspace_segv:
-		printk(KERN_NOTICE "Sending SIGBUS to \"%s\" due to unaligned "
-		       "access (PC %lx PR %lx)\n", current->comm, regs->pc,
-		       regs->pr);
-
-		info.si_signo = SIGBUS;
-		info.si_errno = 0;
-		info.si_code = si_code;
-		info.si_addr = (void __user *)address;
-		force_sig_info(SIGBUS, &info, current);
-	} else {
-		if (regs->pc & 1)
-			die("unaligned program counter", regs, error_code);
-
-#ifndef CONFIG_CPU_SH2A
-		set_fs(KERNEL_DS);
-		if (copy_from_user(&instruction, (u16 *)(regs->pc), 2)) {
-			/* Argh. Fault on the instruction itself.
-			   This should never happen non-SMP
-			*/
-			set_fs(oldfs);
-			die("insn faulting in do_address_error", regs, 0);
-		}
-
-		handle_unaligned_access(instruction, regs);
-		set_fs(oldfs);
-#else
-		printk(KERN_NOTICE "Killing process \"%s\" due to unaligned "
-		       "access\n", current->comm);
-
-		force_sig(SIGSEGV, current);
-#endif
-	}
-}
-
-#ifdef CONFIG_SH_DSP
-/*
- *	SH-DSP support gerg@snapgear.com.
- */
-int is_dsp_inst(struct pt_regs *regs)
-{
-	unsigned short inst = 0;
-
-	/*
-	 * Safe guard if DSP mode is already enabled or we're lacking
-	 * the DSP altogether.
-	 */
-	if (!(current_cpu_data.flags & CPU_HAS_DSP) || (regs->sr & SR_DSP))
-		return 0;
-
-	get_user(inst, ((unsigned short *) regs->pc));
-
-	inst &= 0xf000;
-
-	/* Check for any type of DSP or support instruction */
-	if ((inst == 0xf000) || (inst == 0x4000))
-		return 1;
-
-	return 0;
-}
-#else
-#define is_dsp_inst(regs)	(0)
-#endif /* CONFIG_SH_DSP */
-
-#ifdef CONFIG_CPU_SH2A
-asmlinkage void do_divide_error(unsigned long r4, unsigned long r5,
-				unsigned long r6, unsigned long r7,
-				struct pt_regs __regs)
-{
-	siginfo_t info;
-
-	switch (r4) {
-	case TRAP_DIVZERO_ERROR:
-		info.si_code = FPE_INTDIV;
-		break;
-	case TRAP_DIVOVF_ERROR:
-		info.si_code = FPE_INTOVF;
-		break;
-	}
-
-	force_sig_info(SIGFPE, &info, current);
-}
-#endif
-
-/* arch/sh/kernel/cpu/sh4/fpu.c */
-extern int do_fpu_inst(unsigned short, struct pt_regs *);
-extern asmlinkage void do_fpu_state_restore(unsigned long r4, unsigned long r5,
-		unsigned long r6, unsigned long r7, struct pt_regs __regs);
-
-asmlinkage void do_reserved_inst(unsigned long r4, unsigned long r5,
-				unsigned long r6, unsigned long r7,
-				struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-	unsigned long error_code;
-	struct task_struct *tsk = current;
-
-#ifdef CONFIG_SH_FPU_EMU
-	unsigned short inst = 0;
-	int err;
-
-	get_user(inst, (unsigned short*)regs->pc);
-
-	err = do_fpu_inst(inst, regs);
-	if (!err) {
-		regs->pc += instruction_size(inst);
-		return;
-	}
-	/* not a FPU inst. */
-#endif
-
-#ifdef CONFIG_SH_DSP
-	/* Check if it's a DSP instruction */
-	if (is_dsp_inst(regs)) {
-		/* Enable DSP mode, and restart instruction. */
-		regs->sr |= SR_DSP;
-		return;
-	}
-#endif
-
-	lookup_exception_vector(error_code);
-
-	local_irq_enable();
-	CHK_REMOTE_DEBUG(regs);
-	force_sig(SIGILL, tsk);
-	die_if_no_fixup("reserved instruction", regs, error_code);
-}
-
-#ifdef CONFIG_SH_FPU_EMU
-static int emulate_branch(unsigned short inst, struct pt_regs* regs)
-{
-	/*
-	 * bfs: 8fxx: PC+=d*2+4;
-	 * bts: 8dxx: PC+=d*2+4;
-	 * bra: axxx: PC+=D*2+4;
-	 * bsr: bxxx: PC+=D*2+4  after PR=PC+4;
-	 * braf:0x23: PC+=Rn*2+4;
-	 * bsrf:0x03: PC+=Rn*2+4 after PR=PC+4;
-	 * jmp: 4x2b: PC=Rn;
-	 * jsr: 4x0b: PC=Rn      after PR=PC+4;
-	 * rts: 000b: PC=PR;
-	 */
-	if ((inst & 0xfd00) == 0x8d00) {
-		regs->pc += SH_PC_8BIT_OFFSET(inst);
-		return 0;
-	}
-
-	if ((inst & 0xe000) == 0xa000) {
-		regs->pc += SH_PC_12BIT_OFFSET(inst);
-		return 0;
-	}
-
-	if ((inst & 0xf0df) == 0x0003) {
-		regs->pc += regs->regs[(inst & 0x0f00) >> 8] + 4;
-		return 0;
-	}
-
-	if ((inst & 0xf0df) == 0x400b) {
-		regs->pc = regs->regs[(inst & 0x0f00) >> 8];
-		return 0;
-	}
-
-	if ((inst & 0xffff) == 0x000b) {
-		regs->pc = regs->pr;
-		return 0;
-	}
-
-	return 1;
-}
-#endif
-
-asmlinkage void do_illegal_slot_inst(unsigned long r4, unsigned long r5,
-				unsigned long r6, unsigned long r7,
-				struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-	unsigned long error_code;
-	struct task_struct *tsk = current;
-#ifdef CONFIG_SH_FPU_EMU
-	unsigned short inst = 0;
-
-	get_user(inst, (unsigned short *)regs->pc + 1);
-	if (!do_fpu_inst(inst, regs)) {
-		get_user(inst, (unsigned short *)regs->pc);
-		if (!emulate_branch(inst, regs))
-			return;
-		/* fault in branch.*/
-	}
-	/* not a FPU inst. */
-#endif
-
-	lookup_exception_vector(error_code);
-
-	local_irq_enable();
-	CHK_REMOTE_DEBUG(regs);
-	force_sig(SIGILL, tsk);
-	die_if_no_fixup("illegal slot instruction", regs, error_code);
-}
-
-asmlinkage void do_exception_error(unsigned long r4, unsigned long r5,
-				   unsigned long r6, unsigned long r7,
-				   struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-	long ex;
-
-	lookup_exception_vector(ex);
-	die_if_kernel("exception", regs, ex);
-}
-
-#if defined(CONFIG_SH_STANDARD_BIOS)
-void *gdb_vbr_vector;
-
-static inline void __init gdb_vbr_init(void)
-{
-	register unsigned long vbr;
-
-	/*
-	 * Read the old value of the VBR register to initialise
-	 * the vector through which debug and BIOS traps are
-	 * delegated by the Linux trap handler.
-	 */
-	asm volatile("stc vbr, %0" : "=r" (vbr));
-
-	gdb_vbr_vector = (void *)(vbr + 0x100);
-	printk("Setting GDB trap vector to 0x%08lx\n",
-	       (unsigned long)gdb_vbr_vector);
-}
-#endif
-
-void __cpuinit per_cpu_trap_init(void)
-{
-	extern void *vbr_base;
-
-#ifdef CONFIG_SH_STANDARD_BIOS
-	if (raw_smp_processor_id() == 0)
-		gdb_vbr_init();
-#endif
-
-	/* NOTE: The VBR value should be at P1
-	   (or P2, virtural "fixed" address space).
-	   It's definitely should not in physical address.  */
-
-	asm volatile("ldc	%0, vbr"
-		     : /* no output */
-		     : "r" (&vbr_base)
-		     : "memory");
-}
-
-void *set_exception_table_vec(unsigned int vec, void *handler)
-{
-	extern void *exception_handling_table[];
-	void *old_handler;
-
-	old_handler = exception_handling_table[vec];
-	exception_handling_table[vec] = handler;
-	return old_handler;
-}
-
-extern asmlinkage void address_error_handler(unsigned long r4, unsigned long r5,
-					     unsigned long r6, unsigned long r7,
-					     struct pt_regs __regs);
-
-void __init trap_init(void)
-{
-	set_exception_table_vec(TRAP_RESERVED_INST, do_reserved_inst);
-	set_exception_table_vec(TRAP_ILLEGAL_SLOT_INST, do_illegal_slot_inst);
-
-#if defined(CONFIG_CPU_SH4) && !defined(CONFIG_SH_FPU) || \
-    defined(CONFIG_SH_FPU_EMU)
-	/*
-	 * For SH-4 lacking an FPU, treat floating point instructions as
-	 * reserved. They'll be handled in the math-emu case, or faulted on
-	 * otherwise.
-	 */
-	set_exception_table_evt(0x800, do_reserved_inst);
-	set_exception_table_evt(0x820, do_illegal_slot_inst);
-#elif defined(CONFIG_SH_FPU)
-#ifdef CONFIG_CPU_SUBTYPE_SHX3
-	set_exception_table_evt(0xd80, do_fpu_state_restore);
-	set_exception_table_evt(0xda0, do_fpu_state_restore);
-#else
-	set_exception_table_evt(0x800, do_fpu_state_restore);
-	set_exception_table_evt(0x820, do_fpu_state_restore);
-#endif
-#endif
-
-#ifdef CONFIG_CPU_SH2
-	set_exception_table_vec(TRAP_ADDRESS_ERROR, address_error_handler);
-#endif
-#ifdef CONFIG_CPU_SH2A
-	set_exception_table_vec(TRAP_DIVZERO_ERROR, do_divide_error);
-	set_exception_table_vec(TRAP_DIVOVF_ERROR, do_divide_error);
-#endif
-
-	/* Setup VBR for boot cpu */
-	per_cpu_trap_init();
-}
-
-#ifdef CONFIG_BUG
-void handle_BUG(struct pt_regs *regs)
-{
-	enum bug_trap_type tt;
-	tt = report_bug(regs->pc, regs);
-	if (tt == BUG_TRAP_TYPE_WARN) {
-		regs->pc += 2;
-		return;
-	}
-
-	die("Kernel BUG", regs, TRAPA_BUG_OPCODE & 0xff);
-}
-
-int is_valid_bugaddr(unsigned long addr)
-{
-	return addr >= PAGE_OFFSET;
-}
-#endif
-
-void show_trace(struct task_struct *tsk, unsigned long *sp,
-		struct pt_regs *regs)
-{
-	unsigned long addr;
-
-	if (regs && user_mode(regs))
-		return;
-
-	printk("\nCall trace: ");
-#ifdef CONFIG_KALLSYMS
-	printk("\n");
-#endif
-
-	while (!kstack_end(sp)) {
-		addr = *sp++;
-		if (kernel_text_address(addr))
-			print_ip_sym(addr);
-	}
-
-	printk("\n");
-
-	if (!tsk)
-		tsk = current;
-
-	debug_show_held_locks(tsk);
-}
-
-void show_stack(struct task_struct *tsk, unsigned long *sp)
-{
-	unsigned long stack;
-
-	if (!tsk)
-		tsk = current;
-	if (tsk == current)
-		sp = (unsigned long *)current_stack_pointer;
-	else
-		sp = (unsigned long *)tsk->thread.sp;
-
-	stack = (unsigned long)sp;
-	dump_mem("Stack: ", stack, THREAD_SIZE +
-		 (unsigned long)task_stack_page(tsk));
-	show_trace(tsk, sp, NULL);
-}
-
-void dump_stack(void)
-{
-	show_stack(NULL, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c
new file mode 100644
index 000000000000..cf99111cb33f
--- /dev/null
+++ b/arch/sh/kernel/traps_32.c
@@ -0,0 +1,947 @@
+/*
+ * 'traps.c' handles hardware traps and faults after we have saved some
+ * state in 'entry.S'.
+ *
+ *  SuperH version: Copyright (C) 1999 Niibe Yutaka
+ *                  Copyright (C) 2000 Philipp Rumpf
+ *                  Copyright (C) 2000 David Howells
+ *                  Copyright (C) 2002 - 2007 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/ptrace.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/module.h>
+#include <linux/kallsyms.h>
+#include <linux/io.h>
+#include <linux/bug.h>
+#include <linux/debug_locks.h>
+#include <linux/kdebug.h>
+#include <linux/kexec.h>
+#include <linux/limits.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_SH_KGDB
+#include <asm/kgdb.h>
+#define CHK_REMOTE_DEBUG(regs)			\
+{						\
+	if (kgdb_debug_hook && !user_mode(regs))\
+		(*kgdb_debug_hook)(regs);       \
+}
+#else
+#define CHK_REMOTE_DEBUG(regs)
+#endif
+
+#ifdef CONFIG_CPU_SH2
+# define TRAP_RESERVED_INST	4
+# define TRAP_ILLEGAL_SLOT_INST	6
+# define TRAP_ADDRESS_ERROR	9
+# ifdef CONFIG_CPU_SH2A
+#  define TRAP_DIVZERO_ERROR	17
+#  define TRAP_DIVOVF_ERROR	18
+# endif
+#else
+#define TRAP_RESERVED_INST	12
+#define TRAP_ILLEGAL_SLOT_INST	13
+#endif
+
+static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
+{
+	unsigned long p;
+	int i;
+
+	printk("%s(0x%08lx to 0x%08lx)\n", str, bottom, top);
+
+	for (p = bottom & ~31; p < top; ) {
+		printk("%04lx: ", p & 0xffff);
+
+		for (i = 0; i < 8; i++, p += 4) {
+			unsigned int val;
+
+			if (p < bottom || p >= top)
+				printk("         ");
+			else {
+				if (__get_user(val, (unsigned int __user *)p)) {
+					printk("\n");
+					return;
+				}
+				printk("%08x ", val);
+			}
+		}
+		printk("\n");
+	}
+}
+
+static DEFINE_SPINLOCK(die_lock);
+
+void die(const char * str, struct pt_regs * regs, long err)
+{
+	static int die_counter;
+
+	oops_enter();
+
+	console_verbose();
+	spin_lock_irq(&die_lock);
+	bust_spinlocks(1);
+
+	printk("%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter);
+
+	CHK_REMOTE_DEBUG(regs);
+	print_modules();
+	show_regs(regs);
+
+	printk("Process: %s (pid: %d, stack limit = %p)\n", current->comm,
+			task_pid_nr(current), task_stack_page(current) + 1);
+
+	if (!user_mode(regs) || in_interrupt())
+		dump_mem("Stack: ", regs->regs[15], THREAD_SIZE +
+			 (unsigned long)task_stack_page(current));
+
+	bust_spinlocks(0);
+	add_taint(TAINT_DIE);
+	spin_unlock_irq(&die_lock);
+
+	if (kexec_should_crash(current))
+		crash_kexec(regs);
+
+	if (in_interrupt())
+		panic("Fatal exception in interrupt");
+
+	if (panic_on_oops)
+		panic("Fatal exception");
+
+	oops_exit();
+	do_exit(SIGSEGV);
+}
+
+static inline void die_if_kernel(const char *str, struct pt_regs *regs,
+				 long err)
+{
+	if (!user_mode(regs))
+		die(str, regs, err);
+}
+
+/*
+ * try and fix up kernelspace address errors
+ * - userspace errors just cause EFAULT to be returned, resulting in SEGV
+ * - kernel/userspace interfaces cause a jump to an appropriate handler
+ * - other kernel errors are bad
+ * - return 0 if fixed-up, -EFAULT if non-fatal (to the kernel) fault
+ */
+static int die_if_no_fixup(const char * str, struct pt_regs * regs, long err)
+{
+	if (!user_mode(regs)) {
+		const struct exception_table_entry *fixup;
+		fixup = search_exception_tables(regs->pc);
+		if (fixup) {
+			regs->pc = fixup->fixup;
+			return 0;
+		}
+		die(str, regs, err);
+	}
+	return -EFAULT;
+}
+
+/*
+ * handle an instruction that does an unaligned memory access by emulating the
+ * desired behaviour
+ * - note that PC _may not_ point to the faulting instruction
+ *   (if that instruction is in a branch delay slot)
+ * - return 0 if emulation okay, -EFAULT on existential error
+ */
+static int handle_unaligned_ins(u16 instruction, struct pt_regs *regs)
+{
+	int ret, index, count;
+	unsigned long *rm, *rn;
+	unsigned char *src, *dst;
+
+	index = (instruction>>8)&15;	/* 0x0F00 */
+	rn = &regs->regs[index];
+
+	index = (instruction>>4)&15;	/* 0x00F0 */
+	rm = &regs->regs[index];
+
+	count = 1<<(instruction&3);
+
+	ret = -EFAULT;
+	switch (instruction>>12) {
+	case 0: /* mov.[bwl] to/from memory via r0+rn */
+		if (instruction & 8) {
+			/* from memory */
+			src = (unsigned char*) *rm;
+			src += regs->regs[0];
+			dst = (unsigned char*) rn;
+			*(unsigned long*)dst = 0;
+
+#ifdef __LITTLE_ENDIAN__
+			if (copy_from_user(dst, src, count))
+				goto fetch_fault;
+
+			if ((count == 2) && dst[1] & 0x80) {
+				dst[2] = 0xff;
+				dst[3] = 0xff;
+			}
+#else
+			dst += 4-count;
+
+			if (__copy_user(dst, src, count))
+				goto fetch_fault;
+
+			if ((count == 2) && dst[2] & 0x80) {
+				dst[0] = 0xff;
+				dst[1] = 0xff;
+			}
+#endif
+		} else {
+			/* to memory */
+			src = (unsigned char*) rm;
+#if !defined(__LITTLE_ENDIAN__)
+			src += 4-count;
+#endif
+			dst = (unsigned char*) *rn;
+			dst += regs->regs[0];
+
+			if (copy_to_user(dst, src, count))
+				goto fetch_fault;
+		}
+		ret = 0;
+		break;
+
+	case 1: /* mov.l Rm,@(disp,Rn) */
+		src = (unsigned char*) rm;
+		dst = (unsigned char*) *rn;
+		dst += (instruction&0x000F)<<2;
+
+		if (copy_to_user(dst,src,4))
+			goto fetch_fault;
+		ret = 0;
+		break;
+
+	case 2: /* mov.[bwl] to memory, possibly with pre-decrement */
+		if (instruction & 4)
+			*rn -= count;
+		src = (unsigned char*) rm;
+		dst = (unsigned char*) *rn;
+#if !defined(__LITTLE_ENDIAN__)
+		src += 4-count;
+#endif
+		if (copy_to_user(dst, src, count))
+			goto fetch_fault;
+		ret = 0;
+		break;
+
+	case 5: /* mov.l @(disp,Rm),Rn */
+		src = (unsigned char*) *rm;
+		src += (instruction&0x000F)<<2;
+		dst = (unsigned char*) rn;
+		*(unsigned long*)dst = 0;
+
+		if (copy_from_user(dst,src,4))
+			goto fetch_fault;
+		ret = 0;
+		break;
+
+	case 6:	/* mov.[bwl] from memory, possibly with post-increment */
+		src = (unsigned char*) *rm;
+		if (instruction & 4)
+			*rm += count;
+		dst = (unsigned char*) rn;
+		*(unsigned long*)dst = 0;
+
+#ifdef __LITTLE_ENDIAN__
+		if (copy_from_user(dst, src, count))
+			goto fetch_fault;
+
+		if ((count == 2) && dst[1] & 0x80) {
+			dst[2] = 0xff;
+			dst[3] = 0xff;
+		}
+#else
+		dst += 4-count;
+
+		if (copy_from_user(dst, src, count))
+			goto fetch_fault;
+
+		if ((count == 2) && dst[2] & 0x80) {
+			dst[0] = 0xff;
+			dst[1] = 0xff;
+		}
+#endif
+		ret = 0;
+		break;
+
+	case 8:
+		switch ((instruction&0xFF00)>>8) {
+		case 0x81: /* mov.w R0,@(disp,Rn) */
+			src = (unsigned char*) &regs->regs[0];
+#if !defined(__LITTLE_ENDIAN__)
+			src += 2;
+#endif
+			dst = (unsigned char*) *rm; /* called Rn in the spec */
+			dst += (instruction&0x000F)<<1;
+
+			if (copy_to_user(dst, src, 2))
+				goto fetch_fault;
+			ret = 0;
+			break;
+
+		case 0x85: /* mov.w @(disp,Rm),R0 */
+			src = (unsigned char*) *rm;
+			src += (instruction&0x000F)<<1;
+			dst = (unsigned char*) &regs->regs[0];
+			*(unsigned long*)dst = 0;
+
+#if !defined(__LITTLE_ENDIAN__)
+			dst += 2;
+#endif
+
+			if (copy_from_user(dst, src, 2))
+				goto fetch_fault;
+
+#ifdef __LITTLE_ENDIAN__
+			if (dst[1] & 0x80) {
+				dst[2] = 0xff;
+				dst[3] = 0xff;
+			}
+#else
+			if (dst[2] & 0x80) {
+				dst[0] = 0xff;
+				dst[1] = 0xff;
+			}
+#endif
+			ret = 0;
+			break;
+		}
+		break;
+	}
+	return ret;
+
+ fetch_fault:
+	/* Argh. Address not only misaligned but also non-existent.
+	 * Raise an EFAULT and see if it's trapped
+	 */
+	return die_if_no_fixup("Fault in unaligned fixup", regs, 0);
+}
+
+/*
+ * emulate the instruction in the delay slot
+ * - fetches the instruction from PC+2
+ */
+static inline int handle_unaligned_delayslot(struct pt_regs *regs)
+{
+	u16 instruction;
+
+	if (copy_from_user(&instruction, (u16 *)(regs->pc+2), 2)) {
+		/* the instruction-fetch faulted */
+		if (user_mode(regs))
+			return -EFAULT;
+
+		/* kernel */
+		die("delay-slot-insn faulting in handle_unaligned_delayslot",
+		    regs, 0);
+	}
+
+	return handle_unaligned_ins(instruction,regs);
+}
+
+/*
+ * handle an instruction that does an unaligned memory access
+ * - have to be careful of branch delay-slot instructions that fault
+ *  SH3:
+ *   - if the branch would be taken PC points to the branch
+ *   - if the branch would not be taken, PC points to delay-slot
+ *  SH4:
+ *   - PC always points to delayed branch
+ * - return 0 if handled, -EFAULT if failed (may not return if in kernel)
+ */
+
+/* Macros to determine offset from current PC for branch instructions */
+/* Explicit type coercion is used to force sign extension where needed */
+#define SH_PC_8BIT_OFFSET(instr) ((((signed char)(instr))*2) + 4)
+#define SH_PC_12BIT_OFFSET(instr) ((((signed short)(instr<<4))>>3) + 4)
+
+/*
+ * XXX: SH-2A needs this too, but it needs an overhaul thanks to mixed 32-bit
+ * opcodes..
+ */
+#ifndef CONFIG_CPU_SH2A
+static int handle_unaligned_notify_count = 10;
+
+static int handle_unaligned_access(u16 instruction, struct pt_regs *regs)
+{
+	u_int rm;
+	int ret, index;
+
+	index = (instruction>>8)&15;	/* 0x0F00 */
+	rm = regs->regs[index];
+
+	/* shout about the first ten userspace fixups */
+	if (user_mode(regs) && handle_unaligned_notify_count>0) {
+		handle_unaligned_notify_count--;
+
+		printk(KERN_NOTICE "Fixing up unaligned userspace access "
+		       "in \"%s\" pid=%d pc=0x%p ins=0x%04hx\n",
+		       current->comm, task_pid_nr(current),
+		       (u16 *)regs->pc, instruction);
+	}
+
+	ret = -EFAULT;
+	switch (instruction&0xF000) {
+	case 0x0000:
+		if (instruction==0x000B) {
+			/* rts */
+			ret = handle_unaligned_delayslot(regs);
+			if (ret==0)
+				regs->pc = regs->pr;
+		}
+		else if ((instruction&0x00FF)==0x0023) {
+			/* braf @Rm */
+			ret = handle_unaligned_delayslot(regs);
+			if (ret==0)
+				regs->pc += rm + 4;
+		}
+		else if ((instruction&0x00FF)==0x0003) {
+			/* bsrf @Rm */
+			ret = handle_unaligned_delayslot(regs);
+			if (ret==0) {
+				regs->pr = regs->pc + 4;
+				regs->pc += rm + 4;
+			}
+		}
+		else {
+			/* mov.[bwl] to/from memory via r0+rn */
+			goto simple;
+		}
+		break;
+
+	case 0x1000: /* mov.l Rm,@(disp,Rn) */
+		goto simple;
+
+	case 0x2000: /* mov.[bwl] to memory, possibly with pre-decrement */
+		goto simple;
+
+	case 0x4000:
+		if ((instruction&0x00FF)==0x002B) {
+			/* jmp @Rm */
+			ret = handle_unaligned_delayslot(regs);
+			if (ret==0)
+				regs->pc = rm;
+		}
+		else if ((instruction&0x00FF)==0x000B) {
+			/* jsr @Rm */
+			ret = handle_unaligned_delayslot(regs);
+			if (ret==0) {
+				regs->pr = regs->pc + 4;
+				regs->pc = rm;
+			}
+		}
+		else {
+			/* mov.[bwl] to/from memory via r0+rn */
+			goto simple;
+		}
+		break;
+
+	case 0x5000: /* mov.l @(disp,Rm),Rn */
+		goto simple;
+
+	case 0x6000: /* mov.[bwl] from memory, possibly with post-increment */
+		goto simple;
+
+	case 0x8000: /* bf lab, bf/s lab, bt lab, bt/s lab */
+		switch (instruction&0x0F00) {
+		case 0x0100: /* mov.w R0,@(disp,Rm) */
+			goto simple;
+		case 0x0500: /* mov.w @(disp,Rm),R0 */
+			goto simple;
+		case 0x0B00: /* bf   lab - no delayslot*/
+			break;
+		case 0x0F00: /* bf/s lab */
+			ret = handle_unaligned_delayslot(regs);
+			if (ret==0) {
+#if defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB)
+				if ((regs->sr & 0x00000001) != 0)
+					regs->pc += 4; /* next after slot */
+				else
+#endif
+					regs->pc += SH_PC_8BIT_OFFSET(instruction);
+			}
+			break;
+		case 0x0900: /* bt   lab - no delayslot */
+			break;
+		case 0x0D00: /* bt/s lab */
+			ret = handle_unaligned_delayslot(regs);
+			if (ret==0) {
+#if defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB)
+				if ((regs->sr & 0x00000001) == 0)
+					regs->pc += 4; /* next after slot */
+				else
+#endif
+					regs->pc += SH_PC_8BIT_OFFSET(instruction);
+			}
+			break;
+		}
+		break;
+
+	case 0xA000: /* bra label */
+		ret = handle_unaligned_delayslot(regs);
+		if (ret==0)
+			regs->pc += SH_PC_12BIT_OFFSET(instruction);
+		break;
+
+	case 0xB000: /* bsr label */
+		ret = handle_unaligned_delayslot(regs);
+		if (ret==0) {
+			regs->pr = regs->pc + 4;
+			regs->pc += SH_PC_12BIT_OFFSET(instruction);
+		}
+		break;
+	}
+	return ret;
+
+	/* handle non-delay-slot instruction */
+ simple:
+	ret = handle_unaligned_ins(instruction,regs);
+	if (ret==0)
+		regs->pc += instruction_size(instruction);
+	return ret;
+}
+#endif /* CONFIG_CPU_SH2A */
+
+#ifdef CONFIG_CPU_HAS_SR_RB
+#define lookup_exception_vector(x)	\
+	__asm__ __volatile__ ("stc r2_bank, %0\n\t" : "=r" ((x)))
+#else
+#define lookup_exception_vector(x)	\
+	__asm__ __volatile__ ("mov r4, %0\n\t" : "=r" ((x)))
+#endif
+
+/*
+ * Handle various address error exceptions:
+ *  - instruction address error:
+ *       misaligned PC
+ *       PC >= 0x80000000 in user mode
+ *  - data address error (read and write)
+ *       misaligned data access
+ *       access to >= 0x80000000 is user mode
+ * Unfortuntaly we can't distinguish between instruction address error
+ * and data address errors caused by read accesses.
+ */
+asmlinkage void do_address_error(struct pt_regs *regs,
+				 unsigned long writeaccess,
+				 unsigned long address)
+{
+	unsigned long error_code = 0;
+	mm_segment_t oldfs;
+	siginfo_t info;
+#ifndef CONFIG_CPU_SH2A
+	u16 instruction;
+	int tmp;
+#endif
+
+	/* Intentional ifdef */
+#ifdef CONFIG_CPU_HAS_SR_RB
+	lookup_exception_vector(error_code);
+#endif
+
+	oldfs = get_fs();
+
+	if (user_mode(regs)) {
+		int si_code = BUS_ADRERR;
+
+		local_irq_enable();
+
+		/* bad PC is not something we can fix */
+		if (regs->pc & 1) {
+			si_code = BUS_ADRALN;
+			goto uspace_segv;
+		}
+
+#ifndef CONFIG_CPU_SH2A
+		set_fs(USER_DS);
+		if (copy_from_user(&instruction, (u16 *)(regs->pc), 2)) {
+			/* Argh. Fault on the instruction itself.
+			   This should never happen non-SMP
+			*/
+			set_fs(oldfs);
+			goto uspace_segv;
+		}
+
+		tmp = handle_unaligned_access(instruction, regs);
+		set_fs(oldfs);
+
+		if (tmp==0)
+			return; /* sorted */
+#endif
+
+uspace_segv:
+		printk(KERN_NOTICE "Sending SIGBUS to \"%s\" due to unaligned "
+		       "access (PC %lx PR %lx)\n", current->comm, regs->pc,
+		       regs->pr);
+
+		info.si_signo = SIGBUS;
+		info.si_errno = 0;
+		info.si_code = si_code;
+		info.si_addr = (void __user *)address;
+		force_sig_info(SIGBUS, &info, current);
+	} else {
+		if (regs->pc & 1)
+			die("unaligned program counter", regs, error_code);
+
+#ifndef CONFIG_CPU_SH2A
+		set_fs(KERNEL_DS);
+		if (copy_from_user(&instruction, (u16 *)(regs->pc), 2)) {
+			/* Argh. Fault on the instruction itself.
+			   This should never happen non-SMP
+			*/
+			set_fs(oldfs);
+			die("insn faulting in do_address_error", regs, 0);
+		}
+
+		handle_unaligned_access(instruction, regs);
+		set_fs(oldfs);
+#else
+		printk(KERN_NOTICE "Killing process \"%s\" due to unaligned "
+		       "access\n", current->comm);
+
+		force_sig(SIGSEGV, current);
+#endif
+	}
+}
+
+#ifdef CONFIG_SH_DSP
+/*
+ *	SH-DSP support gerg@snapgear.com.
+ */
+int is_dsp_inst(struct pt_regs *regs)
+{
+	unsigned short inst = 0;
+
+	/*
+	 * Safe guard if DSP mode is already enabled or we're lacking
+	 * the DSP altogether.
+	 */
+	if (!(current_cpu_data.flags & CPU_HAS_DSP) || (regs->sr & SR_DSP))
+		return 0;
+
+	get_user(inst, ((unsigned short *) regs->pc));
+
+	inst &= 0xf000;
+
+	/* Check for any type of DSP or support instruction */
+	if ((inst == 0xf000) || (inst == 0x4000))
+		return 1;
+
+	return 0;
+}
+#else
+#define is_dsp_inst(regs)	(0)
+#endif /* CONFIG_SH_DSP */
+
+#ifdef CONFIG_CPU_SH2A
+asmlinkage void do_divide_error(unsigned long r4, unsigned long r5,
+				unsigned long r6, unsigned long r7,
+				struct pt_regs __regs)
+{
+	siginfo_t info;
+
+	switch (r4) {
+	case TRAP_DIVZERO_ERROR:
+		info.si_code = FPE_INTDIV;
+		break;
+	case TRAP_DIVOVF_ERROR:
+		info.si_code = FPE_INTOVF;
+		break;
+	}
+
+	force_sig_info(SIGFPE, &info, current);
+}
+#endif
+
+/* arch/sh/kernel/cpu/sh4/fpu.c */
+extern int do_fpu_inst(unsigned short, struct pt_regs *);
+extern asmlinkage void do_fpu_state_restore(unsigned long r4, unsigned long r5,
+		unsigned long r6, unsigned long r7, struct pt_regs __regs);
+
+asmlinkage void do_reserved_inst(unsigned long r4, unsigned long r5,
+				unsigned long r6, unsigned long r7,
+				struct pt_regs __regs)
+{
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+	unsigned long error_code;
+	struct task_struct *tsk = current;
+
+#ifdef CONFIG_SH_FPU_EMU
+	unsigned short inst = 0;
+	int err;
+
+	get_user(inst, (unsigned short*)regs->pc);
+
+	err = do_fpu_inst(inst, regs);
+	if (!err) {
+		regs->pc += instruction_size(inst);
+		return;
+	}
+	/* not a FPU inst. */
+#endif
+
+#ifdef CONFIG_SH_DSP
+	/* Check if it's a DSP instruction */
+	if (is_dsp_inst(regs)) {
+		/* Enable DSP mode, and restart instruction. */
+		regs->sr |= SR_DSP;
+		return;
+	}
+#endif
+
+	lookup_exception_vector(error_code);
+
+	local_irq_enable();
+	CHK_REMOTE_DEBUG(regs);
+	force_sig(SIGILL, tsk);
+	die_if_no_fixup("reserved instruction", regs, error_code);
+}
+
+#ifdef CONFIG_SH_FPU_EMU
+static int emulate_branch(unsigned short inst, struct pt_regs* regs)
+{
+	/*
+	 * bfs: 8fxx: PC+=d*2+4;
+	 * bts: 8dxx: PC+=d*2+4;
+	 * bra: axxx: PC+=D*2+4;
+	 * bsr: bxxx: PC+=D*2+4  after PR=PC+4;
+	 * braf:0x23: PC+=Rn*2+4;
+	 * bsrf:0x03: PC+=Rn*2+4 after PR=PC+4;
+	 * jmp: 4x2b: PC=Rn;
+	 * jsr: 4x0b: PC=Rn      after PR=PC+4;
+	 * rts: 000b: PC=PR;
+	 */
+	if ((inst & 0xfd00) == 0x8d00) {
+		regs->pc += SH_PC_8BIT_OFFSET(inst);
+		return 0;
+	}
+
+	if ((inst & 0xe000) == 0xa000) {
+		regs->pc += SH_PC_12BIT_OFFSET(inst);
+		return 0;
+	}
+
+	if ((inst & 0xf0df) == 0x0003) {
+		regs->pc += regs->regs[(inst & 0x0f00) >> 8] + 4;
+		return 0;
+	}
+
+	if ((inst & 0xf0df) == 0x400b) {
+		regs->pc = regs->regs[(inst & 0x0f00) >> 8];
+		return 0;
+	}
+
+	if ((inst & 0xffff) == 0x000b) {
+		regs->pc = regs->pr;
+		return 0;
+	}
+
+	return 1;
+}
+#endif
+
+asmlinkage void do_illegal_slot_inst(unsigned long r4, unsigned long r5,
+				unsigned long r6, unsigned long r7,
+				struct pt_regs __regs)
+{
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+	unsigned long error_code;
+	struct task_struct *tsk = current;
+#ifdef CONFIG_SH_FPU_EMU
+	unsigned short inst = 0;
+
+	get_user(inst, (unsigned short *)regs->pc + 1);
+	if (!do_fpu_inst(inst, regs)) {
+		get_user(inst, (unsigned short *)regs->pc);
+		if (!emulate_branch(inst, regs))
+			return;
+		/* fault in branch.*/
+	}
+	/* not a FPU inst. */
+#endif
+
+	lookup_exception_vector(error_code);
+
+	local_irq_enable();
+	CHK_REMOTE_DEBUG(regs);
+	force_sig(SIGILL, tsk);
+	die_if_no_fixup("illegal slot instruction", regs, error_code);
+}
+
+asmlinkage void do_exception_error(unsigned long r4, unsigned long r5,
+				   unsigned long r6, unsigned long r7,
+				   struct pt_regs __regs)
+{
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+	long ex;
+
+	lookup_exception_vector(ex);
+	die_if_kernel("exception", regs, ex);
+}
+
+#if defined(CONFIG_SH_STANDARD_BIOS)
+void *gdb_vbr_vector;
+
+static inline void __init gdb_vbr_init(void)
+{
+	register unsigned long vbr;
+
+	/*
+	 * Read the old value of the VBR register to initialise
+	 * the vector through which debug and BIOS traps are
+	 * delegated by the Linux trap handler.
+	 */
+	asm volatile("stc vbr, %0" : "=r" (vbr));
+
+	gdb_vbr_vector = (void *)(vbr + 0x100);
+	printk("Setting GDB trap vector to 0x%08lx\n",
+	       (unsigned long)gdb_vbr_vector);
+}
+#endif
+
+void __cpuinit per_cpu_trap_init(void)
+{
+	extern void *vbr_base;
+
+#ifdef CONFIG_SH_STANDARD_BIOS
+	if (raw_smp_processor_id() == 0)
+		gdb_vbr_init();
+#endif
+
+	/* NOTE: The VBR value should be at P1
+	   (or P2, virtural "fixed" address space).
+	   It's definitely should not in physical address.  */
+
+	asm volatile("ldc	%0, vbr"
+		     : /* no output */
+		     : "r" (&vbr_base)
+		     : "memory");
+}
+
+void *set_exception_table_vec(unsigned int vec, void *handler)
+{
+	extern void *exception_handling_table[];
+	void *old_handler;
+
+	old_handler = exception_handling_table[vec];
+	exception_handling_table[vec] = handler;
+	return old_handler;
+}
+
+extern asmlinkage void address_error_handler(unsigned long r4, unsigned long r5,
+					     unsigned long r6, unsigned long r7,
+					     struct pt_regs __regs);
+
+void __init trap_init(void)
+{
+	set_exception_table_vec(TRAP_RESERVED_INST, do_reserved_inst);
+	set_exception_table_vec(TRAP_ILLEGAL_SLOT_INST, do_illegal_slot_inst);
+
+#if defined(CONFIG_CPU_SH4) && !defined(CONFIG_SH_FPU) || \
+    defined(CONFIG_SH_FPU_EMU)
+	/*
+	 * For SH-4 lacking an FPU, treat floating point instructions as
+	 * reserved. They'll be handled in the math-emu case, or faulted on
+	 * otherwise.
+	 */
+	set_exception_table_evt(0x800, do_reserved_inst);
+	set_exception_table_evt(0x820, do_illegal_slot_inst);
+#elif defined(CONFIG_SH_FPU)
+#ifdef CONFIG_CPU_SUBTYPE_SHX3
+	set_exception_table_evt(0xd80, do_fpu_state_restore);
+	set_exception_table_evt(0xda0, do_fpu_state_restore);
+#else
+	set_exception_table_evt(0x800, do_fpu_state_restore);
+	set_exception_table_evt(0x820, do_fpu_state_restore);
+#endif
+#endif
+
+#ifdef CONFIG_CPU_SH2
+	set_exception_table_vec(TRAP_ADDRESS_ERROR, address_error_handler);
+#endif
+#ifdef CONFIG_CPU_SH2A
+	set_exception_table_vec(TRAP_DIVZERO_ERROR, do_divide_error);
+	set_exception_table_vec(TRAP_DIVOVF_ERROR, do_divide_error);
+#endif
+
+	/* Setup VBR for boot cpu */
+	per_cpu_trap_init();
+}
+
+#ifdef CONFIG_BUG
+void handle_BUG(struct pt_regs *regs)
+{
+	enum bug_trap_type tt;
+	tt = report_bug(regs->pc, regs);
+	if (tt == BUG_TRAP_TYPE_WARN) {
+		regs->pc += 2;
+		return;
+	}
+
+	die("Kernel BUG", regs, TRAPA_BUG_OPCODE & 0xff);
+}
+
+int is_valid_bugaddr(unsigned long addr)
+{
+	return addr >= PAGE_OFFSET;
+}
+#endif
+
+void show_trace(struct task_struct *tsk, unsigned long *sp,
+		struct pt_regs *regs)
+{
+	unsigned long addr;
+
+	if (regs && user_mode(regs))
+		return;
+
+	printk("\nCall trace: ");
+#ifdef CONFIG_KALLSYMS
+	printk("\n");
+#endif
+
+	while (!kstack_end(sp)) {
+		addr = *sp++;
+		if (kernel_text_address(addr))
+			print_ip_sym(addr);
+	}
+
+	printk("\n");
+
+	if (!tsk)
+		tsk = current;
+
+	debug_show_held_locks(tsk);
+}
+
+void show_stack(struct task_struct *tsk, unsigned long *sp)
+{
+	unsigned long stack;
+
+	if (!tsk)
+		tsk = current;
+	if (tsk == current)
+		sp = (unsigned long *)current_stack_pointer;
+	else
+		sp = (unsigned long *)tsk->thread.sp;
+
+	stack = (unsigned long)sp;
+	dump_mem("Stack: ", stack, THREAD_SIZE +
+		 (unsigned long)task_stack_page(tsk));
+	show_trace(tsk, sp, NULL);
+}
+
+void dump_stack(void)
+{
+	show_stack(NULL, NULL);
+}
+EXPORT_SYMBOL(dump_stack);
diff --git a/arch/sh/kernel/traps_64.c b/arch/sh/kernel/traps_64.c
new file mode 100644
index 000000000000..742ce18b6820
--- /dev/null
+++ b/arch/sh/kernel/traps_64.c
@@ -0,0 +1,981 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/kernel/traps.c
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003, 2004  Paul Mundt
+ * Copyright (C) 2003, 2004  Richard Curnow
+ *
+ */
+
+/*
+ * 'Traps.c' handles hardware traps and faults after we have saved some
+ * state in 'entry.S'.
+ */
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/kallsyms.h>
+#include <linux/interrupt.h>
+#include <linux/sysctl.h>
+#include <linux/module.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/atomic.h>
+#include <asm/processor.h>
+#include <asm/pgtable.h>
+
+#undef DEBUG_EXCEPTION
+#ifdef DEBUG_EXCEPTION
+/* implemented in ../lib/dbg.c */
+extern void show_excp_regs(char *fname, int trapnr, int signr,
+			   struct pt_regs *regs);
+#else
+#define show_excp_regs(a, b, c, d)
+#endif
+
+static void do_unhandled_exception(int trapnr, int signr, char *str, char *fn_name,
+		unsigned long error_code, struct pt_regs *regs, struct task_struct *tsk);
+
+#define DO_ERROR(trapnr, signr, str, name, tsk) \
+asmlinkage void do_##name(unsigned long error_code, struct pt_regs *regs) \
+{ \
+	do_unhandled_exception(trapnr, signr, str, __stringify(name), error_code, regs, current); \
+}
+
+spinlock_t die_lock;
+
+void die(const char * str, struct pt_regs * regs, long err)
+{
+	console_verbose();
+	spin_lock_irq(&die_lock);
+	printk("%s: %lx\n", str, (err & 0xffffff));
+	show_regs(regs);
+	spin_unlock_irq(&die_lock);
+	do_exit(SIGSEGV);
+}
+
+static inline void die_if_kernel(const char * str, struct pt_regs * regs, long err)
+{
+	if (!user_mode(regs))
+		die(str, regs, err);
+}
+
+static void die_if_no_fixup(const char * str, struct pt_regs * regs, long err)
+{
+	if (!user_mode(regs)) {
+		const struct exception_table_entry *fixup;
+		fixup = search_exception_tables(regs->pc);
+		if (fixup) {
+			regs->pc = fixup->fixup;
+			return;
+		}
+		die(str, regs, err);
+	}
+}
+
+DO_ERROR(13, SIGILL,  "illegal slot instruction", illegal_slot_inst, current)
+DO_ERROR(87, SIGSEGV, "address error (exec)", address_error_exec, current)
+
+
+/* Implement misaligned load/store handling for kernel (and optionally for user
+   mode too).  Limitation : only SHmedia mode code is handled - there is no
+   handling at all for misaligned accesses occurring in SHcompact code yet. */
+
+static int misaligned_fixup(struct pt_regs *regs);
+
+asmlinkage void do_address_error_load(unsigned long error_code, struct pt_regs *regs)
+{
+	if (misaligned_fixup(regs) < 0) {
+		do_unhandled_exception(7, SIGSEGV, "address error(load)",
+				"do_address_error_load",
+				error_code, regs, current);
+	}
+	return;
+}
+
+asmlinkage void do_address_error_store(unsigned long error_code, struct pt_regs *regs)
+{
+	if (misaligned_fixup(regs) < 0) {
+		do_unhandled_exception(8, SIGSEGV, "address error(store)",
+				"do_address_error_store",
+				error_code, regs, current);
+	}
+	return;
+}
+
+#if defined(CONFIG_SH64_ID2815_WORKAROUND)
+
+#define OPCODE_INVALID      0
+#define OPCODE_USER_VALID   1
+#define OPCODE_PRIV_VALID   2
+
+/* getcon/putcon - requires checking which control register is referenced. */
+#define OPCODE_CTRL_REG     3
+
+/* Table of valid opcodes for SHmedia mode.
+   Form a 10-bit value by concatenating the major/minor opcodes i.e.
+   opcode[31:26,20:16].  The 6 MSBs of this value index into the following
+   array.  The 4 LSBs select the bit-pair in the entry (bits 1:0 correspond to
+   LSBs==4'b0000 etc). */
+static unsigned long shmedia_opcode_table[64] = {
+	0x55554044,0x54445055,0x15141514,0x14541414,0x00000000,0x10001000,0x01110055,0x04050015,
+	0x00000444,0xc0000000,0x44545515,0x40405555,0x55550015,0x10005555,0x55555505,0x04050000,
+	0x00000555,0x00000404,0x00040445,0x15151414,0x00000000,0x00000000,0x00000000,0x00000000,
+	0x00000055,0x40404444,0x00000404,0xc0009495,0x00000000,0x00000000,0x00000000,0x00000000,
+	0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,
+	0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,
+	0x80005050,0x04005055,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,
+	0x81055554,0x00000404,0x55555555,0x55555555,0x00000000,0x00000000,0x00000000,0x00000000
+};
+
+void do_reserved_inst(unsigned long error_code, struct pt_regs *regs)
+{
+	/* Workaround SH5-101 cut2 silicon defect #2815 :
+	   in some situations, inter-mode branches from SHcompact -> SHmedia
+	   which should take ITLBMISS or EXECPROT exceptions at the target
+	   falsely take RESINST at the target instead. */
+
+	unsigned long opcode = 0x6ff4fff0; /* guaranteed reserved opcode */
+	unsigned long pc, aligned_pc;
+	int get_user_error;
+	int trapnr = 12;
+	int signr = SIGILL;
+	char *exception_name = "reserved_instruction";
+
+	pc = regs->pc;
+	if ((pc & 3) == 1) {
+		/* SHmedia : check for defect.  This requires executable vmas
+		   to be readable too. */
+		aligned_pc = pc & ~3;
+		if (!access_ok(VERIFY_READ, aligned_pc, sizeof(unsigned long))) {
+			get_user_error = -EFAULT;
+		} else {
+			get_user_error = __get_user(opcode, (unsigned long *)aligned_pc);
+		}
+		if (get_user_error >= 0) {
+			unsigned long index, shift;
+			unsigned long major, minor, combined;
+			unsigned long reserved_field;
+			reserved_field = opcode & 0xf; /* These bits are currently reserved as zero in all valid opcodes */
+			major = (opcode >> 26) & 0x3f;
+			minor = (opcode >> 16) & 0xf;
+			combined = (major << 4) | minor;
+			index = major;
+			shift = minor << 1;
+			if (reserved_field == 0) {
+				int opcode_state = (shmedia_opcode_table[index] >> shift) & 0x3;
+				switch (opcode_state) {
+					case OPCODE_INVALID:
+						/* Trap. */
+						break;
+					case OPCODE_USER_VALID:
+						/* Restart the instruction : the branch to the instruction will now be from an RTE
+						   not from SHcompact so the silicon defect won't be triggered. */
+						return;
+					case OPCODE_PRIV_VALID:
+						if (!user_mode(regs)) {
+							/* Should only ever get here if a module has
+							   SHcompact code inside it.  If so, the same fix up is needed. */
+							return; /* same reason */
+						}
+						/* Otherwise, user mode trying to execute a privileged instruction -
+						   fall through to trap. */
+						break;
+					case OPCODE_CTRL_REG:
+						/* If in privileged mode, return as above. */
+						if (!user_mode(regs)) return;
+						/* In user mode ... */
+						if (combined == 0x9f) { /* GETCON */
+							unsigned long regno = (opcode >> 20) & 0x3f;
+							if (regno >= 62) {
+								return;
+							}
+							/* Otherwise, reserved or privileged control register, => trap */
+						} else if (combined == 0x1bf) { /* PUTCON */
+							unsigned long regno = (opcode >> 4) & 0x3f;
+							if (regno >= 62) {
+								return;
+							}
+							/* Otherwise, reserved or privileged control register, => trap */
+						} else {
+							/* Trap */
+						}
+						break;
+					default:
+						/* Fall through to trap. */
+						break;
+				}
+			}
+			/* fall through to normal resinst processing */
+		} else {
+			/* Error trying to read opcode.  This typically means a
+			   real fault, not a RESINST any more.  So change the
+			   codes. */
+			trapnr = 87;
+			exception_name = "address error (exec)";
+			signr = SIGSEGV;
+		}
+	}
+
+	do_unhandled_exception(trapnr, signr, exception_name, "do_reserved_inst", error_code, regs, current);
+}
+
+#else /* CONFIG_SH64_ID2815_WORKAROUND */
+
+/* If the workaround isn't needed, this is just a straightforward reserved
+   instruction */
+DO_ERROR(12, SIGILL,  "reserved instruction", reserved_inst, current)
+
+#endif /* CONFIG_SH64_ID2815_WORKAROUND */
+
+/* Called with interrupts disabled */
+asmlinkage void do_exception_error(unsigned long ex, struct pt_regs *regs)
+{
+	show_excp_regs(__FUNCTION__, -1, -1, regs);
+	die_if_kernel("exception", regs, ex);
+}
+
+int do_unknown_trapa(unsigned long scId, struct pt_regs *regs)
+{
+	/* Syscall debug */
+        printk("System call ID error: [0x1#args:8 #syscall:16  0x%lx]\n", scId);
+
+	die_if_kernel("unknown trapa", regs, scId);
+
+	return -ENOSYS;
+}
+
+void show_stack(struct task_struct *tsk, unsigned long *sp)
+{
+#ifdef CONFIG_KALLSYMS
+	extern void sh64_unwind(struct pt_regs *regs);
+	struct pt_regs *regs;
+
+	regs = tsk ? tsk->thread.kregs : NULL;
+
+	sh64_unwind(regs);
+#else
+	printk(KERN_ERR "Can't backtrace on sh64 without CONFIG_KALLSYMS\n");
+#endif
+}
+
+void show_task(unsigned long *sp)
+{
+	show_stack(NULL, sp);
+}
+
+void dump_stack(void)
+{
+	show_task(NULL);
+}
+/* Needed by any user of WARN_ON in view of the defn in include/asm-sh/bug.h */
+EXPORT_SYMBOL(dump_stack);
+
+static void do_unhandled_exception(int trapnr, int signr, char *str, char *fn_name,
+		unsigned long error_code, struct pt_regs *regs, struct task_struct *tsk)
+{
+	show_excp_regs(fn_name, trapnr, signr, regs);
+	tsk->thread.error_code = error_code;
+	tsk->thread.trap_no = trapnr;
+
+	if (user_mode(regs))
+		force_sig(signr, tsk);
+
+	die_if_no_fixup(str, regs, error_code);
+}
+
+static int read_opcode(unsigned long long pc, unsigned long *result_opcode, int from_user_mode)
+{
+	int get_user_error;
+	unsigned long aligned_pc;
+	unsigned long opcode;
+
+	if ((pc & 3) == 1) {
+		/* SHmedia */
+		aligned_pc = pc & ~3;
+		if (from_user_mode) {
+			if (!access_ok(VERIFY_READ, aligned_pc, sizeof(unsigned long))) {
+				get_user_error = -EFAULT;
+			} else {
+				get_user_error = __get_user(opcode, (unsigned long *)aligned_pc);
+				*result_opcode = opcode;
+			}
+			return get_user_error;
+		} else {
+			/* If the fault was in the kernel, we can either read
+			 * this directly, or if not, we fault.
+			*/
+			*result_opcode = *(unsigned long *) aligned_pc;
+			return 0;
+		}
+	} else if ((pc & 1) == 0) {
+		/* SHcompact */
+		/* TODO : provide handling for this.  We don't really support
+		   user-mode SHcompact yet, and for a kernel fault, this would
+		   have to come from a module built for SHcompact.  */
+		return -EFAULT;
+	} else {
+		/* misaligned */
+		return -EFAULT;
+	}
+}
+
+static int address_is_sign_extended(__u64 a)
+{
+	__u64 b;
+#if (NEFF == 32)
+	b = (__u64)(__s64)(__s32)(a & 0xffffffffUL);
+	return (b == a) ? 1 : 0;
+#else
+#error "Sign extend check only works for NEFF==32"
+#endif
+}
+
+static int generate_and_check_address(struct pt_regs *regs,
+				      __u32 opcode,
+				      int displacement_not_indexed,
+				      int width_shift,
+				      __u64 *address)
+{
+	/* return -1 for fault, 0 for OK */
+
+	__u64 base_address, addr;
+	int basereg;
+
+	basereg = (opcode >> 20) & 0x3f;
+	base_address = regs->regs[basereg];
+	if (displacement_not_indexed) {
+		__s64 displacement;
+		displacement = (opcode >> 10) & 0x3ff;
+		displacement = ((displacement << 54) >> 54); /* sign extend */
+		addr = (__u64)((__s64)base_address + (displacement << width_shift));
+	} else {
+		__u64 offset;
+		int offsetreg;
+		offsetreg = (opcode >> 10) & 0x3f;
+		offset = regs->regs[offsetreg];
+		addr = base_address + offset;
+	}
+
+	/* Check sign extended */
+	if (!address_is_sign_extended(addr)) {
+		return -1;
+	}
+
+#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
+	/* Check accessible.  For misaligned access in the kernel, assume the
+	   address is always accessible (and if not, just fault when the
+	   load/store gets done.) */
+	if (user_mode(regs)) {
+		if (addr >= TASK_SIZE) {
+			return -1;
+		}
+		/* Do access_ok check later - it depends on whether it's a load or a store. */
+	}
+#endif
+
+	*address = addr;
+	return 0;
+}
+
+/* Default value as for sh */
+#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
+static int user_mode_unaligned_fixup_count = 10;
+static int user_mode_unaligned_fixup_enable = 1;
+#endif
+
+static int kernel_mode_unaligned_fixup_count = 32;
+
+static void misaligned_kernel_word_load(__u64 address, int do_sign_extend, __u64 *result)
+{
+	unsigned short x;
+	unsigned char *p, *q;
+	p = (unsigned char *) (int) address;
+	q = (unsigned char *) &x;
+	q[0] = p[0];
+	q[1] = p[1];
+
+	if (do_sign_extend) {
+		*result = (__u64)(__s64) *(short *) &x;
+	} else {
+		*result = (__u64) x;
+	}
+}
+
+static void misaligned_kernel_word_store(__u64 address, __u64 value)
+{
+	unsigned short x;
+	unsigned char *p, *q;
+	p = (unsigned char *) (int) address;
+	q = (unsigned char *) &x;
+
+	x = (__u16) value;
+	p[0] = q[0];
+	p[1] = q[1];
+}
+
+static int misaligned_load(struct pt_regs *regs,
+			   __u32 opcode,
+			   int displacement_not_indexed,
+			   int width_shift,
+			   int do_sign_extend)
+{
+	/* Return -1 for a fault, 0 for OK */
+	int error;
+	int destreg;
+	__u64 address;
+
+	error = generate_and_check_address(regs, opcode,
+			displacement_not_indexed, width_shift, &address);
+	if (error < 0) {
+		return error;
+	}
+
+	destreg = (opcode >> 4) & 0x3f;
+#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
+	if (user_mode(regs)) {
+		__u64 buffer;
+
+		if (!access_ok(VERIFY_READ, (unsigned long) address, 1UL<<width_shift)) {
+			return -1;
+		}
+
+		if (__copy_user(&buffer, (const void *)(int)address, (1 << width_shift)) > 0) {
+			return -1; /* fault */
+		}
+		switch (width_shift) {
+		case 1:
+			if (do_sign_extend) {
+				regs->regs[destreg] = (__u64)(__s64) *(__s16 *) &buffer;
+			} else {
+				regs->regs[destreg] = (__u64) *(__u16 *) &buffer;
+			}
+			break;
+		case 2:
+			regs->regs[destreg] = (__u64)(__s64) *(__s32 *) &buffer;
+			break;
+		case 3:
+			regs->regs[destreg] = buffer;
+			break;
+		default:
+			printk("Unexpected width_shift %d in misaligned_load, PC=%08lx\n",
+				width_shift, (unsigned long) regs->pc);
+			break;
+		}
+	} else
+#endif
+	{
+		/* kernel mode - we can take short cuts since if we fault, it's a genuine bug */
+		__u64 lo, hi;
+
+		switch (width_shift) {
+		case 1:
+			misaligned_kernel_word_load(address, do_sign_extend, &regs->regs[destreg]);
+			break;
+		case 2:
+			asm ("ldlo.l %1, 0, %0" : "=r" (lo) : "r" (address));
+			asm ("ldhi.l %1, 3, %0" : "=r" (hi) : "r" (address));
+			regs->regs[destreg] = lo | hi;
+			break;
+		case 3:
+			asm ("ldlo.q %1, 0, %0" : "=r" (lo) : "r" (address));
+			asm ("ldhi.q %1, 7, %0" : "=r" (hi) : "r" (address));
+			regs->regs[destreg] = lo | hi;
+			break;
+
+		default:
+			printk("Unexpected width_shift %d in misaligned_load, PC=%08lx\n",
+				width_shift, (unsigned long) regs->pc);
+			break;
+		}
+	}
+
+	return 0;
+
+}
+
+static int misaligned_store(struct pt_regs *regs,
+			    __u32 opcode,
+			    int displacement_not_indexed,
+			    int width_shift)
+{
+	/* Return -1 for a fault, 0 for OK */
+	int error;
+	int srcreg;
+	__u64 address;
+
+	error = generate_and_check_address(regs, opcode,
+			displacement_not_indexed, width_shift, &address);
+	if (error < 0) {
+		return error;
+	}
+
+	srcreg = (opcode >> 4) & 0x3f;
+#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
+	if (user_mode(regs)) {
+		__u64 buffer;
+
+		if (!access_ok(VERIFY_WRITE, (unsigned long) address, 1UL<<width_shift)) {
+			return -1;
+		}
+
+		switch (width_shift) {
+		case 1:
+			*(__u16 *) &buffer = (__u16) regs->regs[srcreg];
+			break;
+		case 2:
+			*(__u32 *) &buffer = (__u32) regs->regs[srcreg];
+			break;
+		case 3:
+			buffer = regs->regs[srcreg];
+			break;
+		default:
+			printk("Unexpected width_shift %d in misaligned_store, PC=%08lx\n",
+				width_shift, (unsigned long) regs->pc);
+			break;
+		}
+
+		if (__copy_user((void *)(int)address, &buffer, (1 << width_shift)) > 0) {
+			return -1; /* fault */
+		}
+	} else
+#endif
+	{
+		/* kernel mode - we can take short cuts since if we fault, it's a genuine bug */
+		__u64 val = regs->regs[srcreg];
+
+		switch (width_shift) {
+		case 1:
+			misaligned_kernel_word_store(address, val);
+			break;
+		case 2:
+			asm ("stlo.l %1, 0, %0" : : "r" (val), "r" (address));
+			asm ("sthi.l %1, 3, %0" : : "r" (val), "r" (address));
+			break;
+		case 3:
+			asm ("stlo.q %1, 0, %0" : : "r" (val), "r" (address));
+			asm ("sthi.q %1, 7, %0" : : "r" (val), "r" (address));
+			break;
+
+		default:
+			printk("Unexpected width_shift %d in misaligned_store, PC=%08lx\n",
+				width_shift, (unsigned long) regs->pc);
+			break;
+		}
+	}
+
+	return 0;
+
+}
+
+#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
+/* Never need to fix up misaligned FPU accesses within the kernel since that's a real
+   error. */
+static int misaligned_fpu_load(struct pt_regs *regs,
+			   __u32 opcode,
+			   int displacement_not_indexed,
+			   int width_shift,
+			   int do_paired_load)
+{
+	/* Return -1 for a fault, 0 for OK */
+	int error;
+	int destreg;
+	__u64 address;
+
+	error = generate_and_check_address(regs, opcode,
+			displacement_not_indexed, width_shift, &address);
+	if (error < 0) {
+		return error;
+	}
+
+	destreg = (opcode >> 4) & 0x3f;
+	if (user_mode(regs)) {
+		__u64 buffer;
+		__u32 buflo, bufhi;
+
+		if (!access_ok(VERIFY_READ, (unsigned long) address, 1UL<<width_shift)) {
+			return -1;
+		}
+
+		if (__copy_user(&buffer, (const void *)(int)address, (1 << width_shift)) > 0) {
+			return -1; /* fault */
+		}
+		/* 'current' may be the current owner of the FPU state, so
+		   context switch the registers into memory so they can be
+		   indexed by register number. */
+		if (last_task_used_math == current) {
+			grab_fpu();
+			fpsave(&current->thread.fpu.hard);
+			release_fpu();
+			last_task_used_math = NULL;
+			regs->sr |= SR_FD;
+		}
+
+		buflo = *(__u32*) &buffer;
+		bufhi = *(1 + (__u32*) &buffer);
+
+		switch (width_shift) {
+		case 2:
+			current->thread.fpu.hard.fp_regs[destreg] = buflo;
+			break;
+		case 3:
+			if (do_paired_load) {
+				current->thread.fpu.hard.fp_regs[destreg] = buflo;
+				current->thread.fpu.hard.fp_regs[destreg+1] = bufhi;
+			} else {
+#if defined(CONFIG_LITTLE_ENDIAN)
+				current->thread.fpu.hard.fp_regs[destreg] = bufhi;
+				current->thread.fpu.hard.fp_regs[destreg+1] = buflo;
+#else
+				current->thread.fpu.hard.fp_regs[destreg] = buflo;
+				current->thread.fpu.hard.fp_regs[destreg+1] = bufhi;
+#endif
+			}
+			break;
+		default:
+			printk("Unexpected width_shift %d in misaligned_fpu_load, PC=%08lx\n",
+				width_shift, (unsigned long) regs->pc);
+			break;
+		}
+		return 0;
+	} else {
+		die ("Misaligned FPU load inside kernel", regs, 0);
+		return -1;
+	}
+
+
+}
+
+static int misaligned_fpu_store(struct pt_regs *regs,
+			   __u32 opcode,
+			   int displacement_not_indexed,
+			   int width_shift,
+			   int do_paired_load)
+{
+	/* Return -1 for a fault, 0 for OK */
+	int error;
+	int srcreg;
+	__u64 address;
+
+	error = generate_and_check_address(regs, opcode,
+			displacement_not_indexed, width_shift, &address);
+	if (error < 0) {
+		return error;
+	}
+
+	srcreg = (opcode >> 4) & 0x3f;
+	if (user_mode(regs)) {
+		__u64 buffer;
+		/* Initialise these to NaNs. */
+		__u32 buflo=0xffffffffUL, bufhi=0xffffffffUL;
+
+		if (!access_ok(VERIFY_WRITE, (unsigned long) address, 1UL<<width_shift)) {
+			return -1;
+		}
+
+		/* 'current' may be the current owner of the FPU state, so
+		   context switch the registers into memory so they can be
+		   indexed by register number. */
+		if (last_task_used_math == current) {
+			grab_fpu();
+			fpsave(&current->thread.fpu.hard);
+			release_fpu();
+			last_task_used_math = NULL;
+			regs->sr |= SR_FD;
+		}
+
+		switch (width_shift) {
+		case 2:
+			buflo = current->thread.fpu.hard.fp_regs[srcreg];
+			break;
+		case 3:
+			if (do_paired_load) {
+				buflo = current->thread.fpu.hard.fp_regs[srcreg];
+				bufhi = current->thread.fpu.hard.fp_regs[srcreg+1];
+			} else {
+#if defined(CONFIG_LITTLE_ENDIAN)
+				bufhi = current->thread.fpu.hard.fp_regs[srcreg];
+				buflo = current->thread.fpu.hard.fp_regs[srcreg+1];
+#else
+				buflo = current->thread.fpu.hard.fp_regs[srcreg];
+				bufhi = current->thread.fpu.hard.fp_regs[srcreg+1];
+#endif
+			}
+			break;
+		default:
+			printk("Unexpected width_shift %d in misaligned_fpu_store, PC=%08lx\n",
+				width_shift, (unsigned long) regs->pc);
+			break;
+		}
+
+		*(__u32*) &buffer = buflo;
+		*(1 + (__u32*) &buffer) = bufhi;
+		if (__copy_user((void *)(int)address, &buffer, (1 << width_shift)) > 0) {
+			return -1; /* fault */
+		}
+		return 0;
+	} else {
+		die ("Misaligned FPU load inside kernel", regs, 0);
+		return -1;
+	}
+}
+#endif
+
+static int misaligned_fixup(struct pt_regs *regs)
+{
+	unsigned long opcode;
+	int error;
+	int major, minor;
+
+#if !defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
+	/* Never fixup user mode misaligned accesses without this option enabled. */
+	return -1;
+#else
+	if (!user_mode_unaligned_fixup_enable) return -1;
+#endif
+
+	error = read_opcode(regs->pc, &opcode, user_mode(regs));
+	if (error < 0) {
+		return error;
+	}
+	major = (opcode >> 26) & 0x3f;
+	minor = (opcode >> 16) & 0xf;
+
+#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
+	if (user_mode(regs) && (user_mode_unaligned_fixup_count > 0)) {
+		--user_mode_unaligned_fixup_count;
+		/* Only do 'count' worth of these reports, to remove a potential DoS against syslog */
+		printk("Fixing up unaligned userspace access in \"%s\" pid=%d pc=0x%08x ins=0x%08lx\n",
+		       current->comm, task_pid_nr(current), (__u32)regs->pc, opcode);
+	} else
+#endif
+	if (!user_mode(regs) && (kernel_mode_unaligned_fixup_count > 0)) {
+		--kernel_mode_unaligned_fixup_count;
+		if (in_interrupt()) {
+			printk("Fixing up unaligned kernelspace access in interrupt pc=0x%08x ins=0x%08lx\n",
+			       (__u32)regs->pc, opcode);
+		} else {
+			printk("Fixing up unaligned kernelspace access in \"%s\" pid=%d pc=0x%08x ins=0x%08lx\n",
+			       current->comm, task_pid_nr(current), (__u32)regs->pc, opcode);
+		}
+	}
+
+
+	switch (major) {
+		case (0x84>>2): /* LD.W */
+			error = misaligned_load(regs, opcode, 1, 1, 1);
+			break;
+		case (0xb0>>2): /* LD.UW */
+			error = misaligned_load(regs, opcode, 1, 1, 0);
+			break;
+		case (0x88>>2): /* LD.L */
+			error = misaligned_load(regs, opcode, 1, 2, 1);
+			break;
+		case (0x8c>>2): /* LD.Q */
+			error = misaligned_load(regs, opcode, 1, 3, 0);
+			break;
+
+		case (0xa4>>2): /* ST.W */
+			error = misaligned_store(regs, opcode, 1, 1);
+			break;
+		case (0xa8>>2): /* ST.L */
+			error = misaligned_store(regs, opcode, 1, 2);
+			break;
+		case (0xac>>2): /* ST.Q */
+			error = misaligned_store(regs, opcode, 1, 3);
+			break;
+
+		case (0x40>>2): /* indexed loads */
+			switch (minor) {
+				case 0x1: /* LDX.W */
+					error = misaligned_load(regs, opcode, 0, 1, 1);
+					break;
+				case 0x5: /* LDX.UW */
+					error = misaligned_load(regs, opcode, 0, 1, 0);
+					break;
+				case 0x2: /* LDX.L */
+					error = misaligned_load(regs, opcode, 0, 2, 1);
+					break;
+				case 0x3: /* LDX.Q */
+					error = misaligned_load(regs, opcode, 0, 3, 0);
+					break;
+				default:
+					error = -1;
+					break;
+			}
+			break;
+
+		case (0x60>>2): /* indexed stores */
+			switch (minor) {
+				case 0x1: /* STX.W */
+					error = misaligned_store(regs, opcode, 0, 1);
+					break;
+				case 0x2: /* STX.L */
+					error = misaligned_store(regs, opcode, 0, 2);
+					break;
+				case 0x3: /* STX.Q */
+					error = misaligned_store(regs, opcode, 0, 3);
+					break;
+				default:
+					error = -1;
+					break;
+			}
+			break;
+
+#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
+		case (0x94>>2): /* FLD.S */
+			error = misaligned_fpu_load(regs, opcode, 1, 2, 0);
+			break;
+		case (0x98>>2): /* FLD.P */
+			error = misaligned_fpu_load(regs, opcode, 1, 3, 1);
+			break;
+		case (0x9c>>2): /* FLD.D */
+			error = misaligned_fpu_load(regs, opcode, 1, 3, 0);
+			break;
+		case (0x1c>>2): /* floating indexed loads */
+			switch (minor) {
+			case 0x8: /* FLDX.S */
+				error = misaligned_fpu_load(regs, opcode, 0, 2, 0);
+				break;
+			case 0xd: /* FLDX.P */
+				error = misaligned_fpu_load(regs, opcode, 0, 3, 1);
+				break;
+			case 0x9: /* FLDX.D */
+				error = misaligned_fpu_load(regs, opcode, 0, 3, 0);
+				break;
+			default:
+				error = -1;
+				break;
+			}
+			break;
+		case (0xb4>>2): /* FLD.S */
+			error = misaligned_fpu_store(regs, opcode, 1, 2, 0);
+			break;
+		case (0xb8>>2): /* FLD.P */
+			error = misaligned_fpu_store(regs, opcode, 1, 3, 1);
+			break;
+		case (0xbc>>2): /* FLD.D */
+			error = misaligned_fpu_store(regs, opcode, 1, 3, 0);
+			break;
+		case (0x3c>>2): /* floating indexed stores */
+			switch (minor) {
+			case 0x8: /* FSTX.S */
+				error = misaligned_fpu_store(regs, opcode, 0, 2, 0);
+				break;
+			case 0xd: /* FSTX.P */
+				error = misaligned_fpu_store(regs, opcode, 0, 3, 1);
+				break;
+			case 0x9: /* FSTX.D */
+				error = misaligned_fpu_store(regs, opcode, 0, 3, 0);
+				break;
+			default:
+				error = -1;
+				break;
+			}
+			break;
+#endif
+
+		default:
+			/* Fault */
+			error = -1;
+			break;
+	}
+
+	if (error < 0) {
+		return error;
+	} else {
+		regs->pc += 4; /* Skip the instruction that's just been emulated */
+		return 0;
+	}
+
+}
+
+static ctl_table unaligned_table[] = {
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "kernel_reports",
+		.data		= &kernel_mode_unaligned_fixup_count,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "user_reports",
+		.data		= &user_mode_unaligned_fixup_count,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "user_enable",
+		.data		= &user_mode_unaligned_fixup_enable,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec},
+#endif
+	{}
+};
+
+static ctl_table unaligned_root[] = {
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "unaligned_fixup",
+		.mode		= 0555,
+		unaligned_table
+	},
+	{}
+};
+
+static ctl_table sh64_root[] = {
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "sh64",
+		.mode		= 0555,
+		.child		= unaligned_root
+	},
+	{}
+};
+static struct ctl_table_header *sysctl_header;
+static int __init init_sysctl(void)
+{
+	sysctl_header = register_sysctl_table(sh64_root);
+	return 0;
+}
+
+__initcall(init_sysctl);
+
+
+asmlinkage void do_debug_interrupt(unsigned long code, struct pt_regs *regs)
+{
+	u64 peek_real_address_q(u64 addr);
+	u64 poke_real_address_q(u64 addr, u64 val);
+	unsigned long long DM_EXP_CAUSE_PHY = 0x0c100010;
+	unsigned long long exp_cause;
+	/* It's not worth ioremapping the debug module registers for the amount
+	   of access we make to them - just go direct to their physical
+	   addresses. */
+	exp_cause = peek_real_address_q(DM_EXP_CAUSE_PHY);
+	if (exp_cause & ~4) {
+		printk("DM.EXP_CAUSE had unexpected bits set (=%08lx)\n",
+			(unsigned long)(exp_cause & 0xffffffff));
+	}
+	show_state();
+	/* Clear all DEBUGINT causes */
+	poke_real_address_q(DM_EXP_CAUSE_PHY, 0x0);
+}
diff --git a/arch/sh64/kernel/traps.c b/arch/sh64/kernel/traps.c
deleted file mode 100644
index f32df3831f45..000000000000
--- a/arch/sh64/kernel/traps.c
+++ /dev/null
@@ -1,982 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/traps.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003, 2004  Paul Mundt
- * Copyright (C) 2003, 2004  Richard Curnow
- *
- */
-
-/*
- * 'Traps.c' handles hardware traps and faults after we have saved some
- * state in 'entry.S'.
- */
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/kallsyms.h>
-#include <linux/interrupt.h>
-#include <linux/sysctl.h>
-#include <linux/module.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/atomic.h>
-#include <asm/processor.h>
-#include <asm/pgtable.h>
-
-#undef DEBUG_EXCEPTION
-#ifdef DEBUG_EXCEPTION
-/* implemented in ../lib/dbg.c */
-extern void show_excp_regs(char *fname, int trapnr, int signr,
-			   struct pt_regs *regs);
-#else
-#define show_excp_regs(a, b, c, d)
-#endif
-
-static void do_unhandled_exception(int trapnr, int signr, char *str, char *fn_name,
-		unsigned long error_code, struct pt_regs *regs, struct task_struct *tsk);
-
-#define DO_ERROR(trapnr, signr, str, name, tsk) \
-asmlinkage void do_##name(unsigned long error_code, struct pt_regs *regs) \
-{ \
-	do_unhandled_exception(trapnr, signr, str, __stringify(name), error_code, regs, current); \
-}
-
-spinlock_t die_lock;
-
-void die(const char * str, struct pt_regs * regs, long err)
-{
-	console_verbose();
-	spin_lock_irq(&die_lock);
-	printk("%s: %lx\n", str, (err & 0xffffff));
-	show_regs(regs);
-	spin_unlock_irq(&die_lock);
-	do_exit(SIGSEGV);
-}
-
-static inline void die_if_kernel(const char * str, struct pt_regs * regs, long err)
-{
-	if (!user_mode(regs))
-		die(str, regs, err);
-}
-
-static void die_if_no_fixup(const char * str, struct pt_regs * regs, long err)
-{
-	if (!user_mode(regs)) {
-		const struct exception_table_entry *fixup;
-		fixup = search_exception_tables(regs->pc);
-		if (fixup) {
-			regs->pc = fixup->fixup;
-			return;
-		}
-		die(str, regs, err);
-	}
-}
-
-DO_ERROR(13, SIGILL,  "illegal slot instruction", illegal_slot_inst, current)
-DO_ERROR(87, SIGSEGV, "address error (exec)", address_error_exec, current)
-
-
-/* Implement misaligned load/store handling for kernel (and optionally for user
-   mode too).  Limitation : only SHmedia mode code is handled - there is no
-   handling at all for misaligned accesses occurring in SHcompact code yet. */
-
-static int misaligned_fixup(struct pt_regs *regs);
-
-asmlinkage void do_address_error_load(unsigned long error_code, struct pt_regs *regs)
-{
-	if (misaligned_fixup(regs) < 0) {
-		do_unhandled_exception(7, SIGSEGV, "address error(load)",
-				"do_address_error_load",
-				error_code, regs, current);
-	}
-	return;
-}
-
-asmlinkage void do_address_error_store(unsigned long error_code, struct pt_regs *regs)
-{
-	if (misaligned_fixup(regs) < 0) {
-		do_unhandled_exception(8, SIGSEGV, "address error(store)",
-				"do_address_error_store",
-				error_code, regs, current);
-	}
-	return;
-}
-
-#if defined(CONFIG_SH64_ID2815_WORKAROUND)
-
-#define OPCODE_INVALID      0
-#define OPCODE_USER_VALID   1
-#define OPCODE_PRIV_VALID   2
-
-/* getcon/putcon - requires checking which control register is referenced. */
-#define OPCODE_CTRL_REG     3
-
-/* Table of valid opcodes for SHmedia mode.
-   Form a 10-bit value by concatenating the major/minor opcodes i.e.
-   opcode[31:26,20:16].  The 6 MSBs of this value index into the following
-   array.  The 4 LSBs select the bit-pair in the entry (bits 1:0 correspond to
-   LSBs==4'b0000 etc). */
-static unsigned long shmedia_opcode_table[64] = {
-	0x55554044,0x54445055,0x15141514,0x14541414,0x00000000,0x10001000,0x01110055,0x04050015,
-	0x00000444,0xc0000000,0x44545515,0x40405555,0x55550015,0x10005555,0x55555505,0x04050000,
-	0x00000555,0x00000404,0x00040445,0x15151414,0x00000000,0x00000000,0x00000000,0x00000000,
-	0x00000055,0x40404444,0x00000404,0xc0009495,0x00000000,0x00000000,0x00000000,0x00000000,
-	0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,
-	0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,
-	0x80005050,0x04005055,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,
-	0x81055554,0x00000404,0x55555555,0x55555555,0x00000000,0x00000000,0x00000000,0x00000000
-};
-
-void do_reserved_inst(unsigned long error_code, struct pt_regs *regs)
-{
-	/* Workaround SH5-101 cut2 silicon defect #2815 :
-	   in some situations, inter-mode branches from SHcompact -> SHmedia
-	   which should take ITLBMISS or EXECPROT exceptions at the target
-	   falsely take RESINST at the target instead. */
-
-	unsigned long opcode = 0x6ff4fff0; /* guaranteed reserved opcode */
-	unsigned long pc, aligned_pc;
-	int get_user_error;
-	int trapnr = 12;
-	int signr = SIGILL;
-	char *exception_name = "reserved_instruction";
-
-	pc = regs->pc;
-	if ((pc & 3) == 1) {
-		/* SHmedia : check for defect.  This requires executable vmas
-		   to be readable too. */
-		aligned_pc = pc & ~3;
-		if (!access_ok(VERIFY_READ, aligned_pc, sizeof(unsigned long))) {
-			get_user_error = -EFAULT;
-		} else {
-			get_user_error = __get_user(opcode, (unsigned long *)aligned_pc);
-		}
-		if (get_user_error >= 0) {
-			unsigned long index, shift;
-			unsigned long major, minor, combined;
-			unsigned long reserved_field;
-			reserved_field = opcode & 0xf; /* These bits are currently reserved as zero in all valid opcodes */
-			major = (opcode >> 26) & 0x3f;
-			minor = (opcode >> 16) & 0xf;
-			combined = (major << 4) | minor;
-			index = major;
-			shift = minor << 1;
-			if (reserved_field == 0) {
-				int opcode_state = (shmedia_opcode_table[index] >> shift) & 0x3;
-				switch (opcode_state) {
-					case OPCODE_INVALID:
-						/* Trap. */
-						break;
-					case OPCODE_USER_VALID:
-						/* Restart the instruction : the branch to the instruction will now be from an RTE
-						   not from SHcompact so the silicon defect won't be triggered. */
-						return;
-					case OPCODE_PRIV_VALID:
-						if (!user_mode(regs)) {
-							/* Should only ever get here if a module has
-							   SHcompact code inside it.  If so, the same fix up is needed. */
-							return; /* same reason */
-						}
-						/* Otherwise, user mode trying to execute a privileged instruction -
-						   fall through to trap. */
-						break;
-					case OPCODE_CTRL_REG:
-						/* If in privileged mode, return as above. */
-						if (!user_mode(regs)) return;
-						/* In user mode ... */
-						if (combined == 0x9f) { /* GETCON */
-							unsigned long regno = (opcode >> 20) & 0x3f;
-							if (regno >= 62) {
-								return;
-							}
-							/* Otherwise, reserved or privileged control register, => trap */
-						} else if (combined == 0x1bf) { /* PUTCON */
-							unsigned long regno = (opcode >> 4) & 0x3f;
-							if (regno >= 62) {
-								return;
-							}
-							/* Otherwise, reserved or privileged control register, => trap */
-						} else {
-							/* Trap */
-						}
-						break;
-					default:
-						/* Fall through to trap. */
-						break;
-				}
-			}
-			/* fall through to normal resinst processing */
-		} else {
-			/* Error trying to read opcode.  This typically means a
-			   real fault, not a RESINST any more.  So change the
-			   codes. */
-			trapnr = 87;
-			exception_name = "address error (exec)";
-			signr = SIGSEGV;
-		}
-	}
-
-	do_unhandled_exception(trapnr, signr, exception_name, "do_reserved_inst", error_code, regs, current);
-}
-
-#else /* CONFIG_SH64_ID2815_WORKAROUND */
-
-/* If the workaround isn't needed, this is just a straightforward reserved
-   instruction */
-DO_ERROR(12, SIGILL,  "reserved instruction", reserved_inst, current)
-
-#endif /* CONFIG_SH64_ID2815_WORKAROUND */
-
-/* Called with interrupts disabled */
-asmlinkage void do_exception_error(unsigned long ex, struct pt_regs *regs)
-{
-	PLS();
-	show_excp_regs(__FUNCTION__, -1, -1, regs);
-	die_if_kernel("exception", regs, ex);
-}
-
-int do_unknown_trapa(unsigned long scId, struct pt_regs *regs)
-{
-	/* Syscall debug */
-        printk("System call ID error: [0x1#args:8 #syscall:16  0x%lx]\n", scId);
-
-	die_if_kernel("unknown trapa", regs, scId);
-
-	return -ENOSYS;
-}
-
-void show_stack(struct task_struct *tsk, unsigned long *sp)
-{
-#ifdef CONFIG_KALLSYMS
-	extern void sh64_unwind(struct pt_regs *regs);
-	struct pt_regs *regs;
-
-	regs = tsk ? tsk->thread.kregs : NULL;
-
-	sh64_unwind(regs);
-#else
-	printk(KERN_ERR "Can't backtrace on sh64 without CONFIG_KALLSYMS\n");
-#endif
-}
-
-void show_task(unsigned long *sp)
-{
-	show_stack(NULL, sp);
-}
-
-void dump_stack(void)
-{
-	show_task(NULL);
-}
-/* Needed by any user of WARN_ON in view of the defn in include/asm-sh/bug.h */
-EXPORT_SYMBOL(dump_stack);
-
-static void do_unhandled_exception(int trapnr, int signr, char *str, char *fn_name,
-		unsigned long error_code, struct pt_regs *regs, struct task_struct *tsk)
-{
-	show_excp_regs(fn_name, trapnr, signr, regs);
-	tsk->thread.error_code = error_code;
-	tsk->thread.trap_no = trapnr;
-
-	if (user_mode(regs))
-		force_sig(signr, tsk);
-
-	die_if_no_fixup(str, regs, error_code);
-}
-
-static int read_opcode(unsigned long long pc, unsigned long *result_opcode, int from_user_mode)
-{
-	int get_user_error;
-	unsigned long aligned_pc;
-	unsigned long opcode;
-
-	if ((pc & 3) == 1) {
-		/* SHmedia */
-		aligned_pc = pc & ~3;
-		if (from_user_mode) {
-			if (!access_ok(VERIFY_READ, aligned_pc, sizeof(unsigned long))) {
-				get_user_error = -EFAULT;
-			} else {
-				get_user_error = __get_user(opcode, (unsigned long *)aligned_pc);
-				*result_opcode = opcode;
-			}
-			return get_user_error;
-		} else {
-			/* If the fault was in the kernel, we can either read
-			 * this directly, or if not, we fault.
-			*/
-			*result_opcode = *(unsigned long *) aligned_pc;
-			return 0;
-		}
-	} else if ((pc & 1) == 0) {
-		/* SHcompact */
-		/* TODO : provide handling for this.  We don't really support
-		   user-mode SHcompact yet, and for a kernel fault, this would
-		   have to come from a module built for SHcompact.  */
-		return -EFAULT;
-	} else {
-		/* misaligned */
-		return -EFAULT;
-	}
-}
-
-static int address_is_sign_extended(__u64 a)
-{
-	__u64 b;
-#if (NEFF == 32)
-	b = (__u64)(__s64)(__s32)(a & 0xffffffffUL);
-	return (b == a) ? 1 : 0;
-#else
-#error "Sign extend check only works for NEFF==32"
-#endif
-}
-
-static int generate_and_check_address(struct pt_regs *regs,
-				      __u32 opcode,
-				      int displacement_not_indexed,
-				      int width_shift,
-				      __u64 *address)
-{
-	/* return -1 for fault, 0 for OK */
-
-	__u64 base_address, addr;
-	int basereg;
-
-	basereg = (opcode >> 20) & 0x3f;
-	base_address = regs->regs[basereg];
-	if (displacement_not_indexed) {
-		__s64 displacement;
-		displacement = (opcode >> 10) & 0x3ff;
-		displacement = ((displacement << 54) >> 54); /* sign extend */
-		addr = (__u64)((__s64)base_address + (displacement << width_shift));
-	} else {
-		__u64 offset;
-		int offsetreg;
-		offsetreg = (opcode >> 10) & 0x3f;
-		offset = regs->regs[offsetreg];
-		addr = base_address + offset;
-	}
-
-	/* Check sign extended */
-	if (!address_is_sign_extended(addr)) {
-		return -1;
-	}
-
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-	/* Check accessible.  For misaligned access in the kernel, assume the
-	   address is always accessible (and if not, just fault when the
-	   load/store gets done.) */
-	if (user_mode(regs)) {
-		if (addr >= TASK_SIZE) {
-			return -1;
-		}
-		/* Do access_ok check later - it depends on whether it's a load or a store. */
-	}
-#endif
-
-	*address = addr;
-	return 0;
-}
-
-/* Default value as for sh */
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-static int user_mode_unaligned_fixup_count = 10;
-static int user_mode_unaligned_fixup_enable = 1;
-#endif
-
-static int kernel_mode_unaligned_fixup_count = 32;
-
-static void misaligned_kernel_word_load(__u64 address, int do_sign_extend, __u64 *result)
-{
-	unsigned short x;
-	unsigned char *p, *q;
-	p = (unsigned char *) (int) address;
-	q = (unsigned char *) &x;
-	q[0] = p[0];
-	q[1] = p[1];
-
-	if (do_sign_extend) {
-		*result = (__u64)(__s64) *(short *) &x;
-	} else {
-		*result = (__u64) x;
-	}
-}
-
-static void misaligned_kernel_word_store(__u64 address, __u64 value)
-{
-	unsigned short x;
-	unsigned char *p, *q;
-	p = (unsigned char *) (int) address;
-	q = (unsigned char *) &x;
-
-	x = (__u16) value;
-	p[0] = q[0];
-	p[1] = q[1];
-}
-
-static int misaligned_load(struct pt_regs *regs,
-			   __u32 opcode,
-			   int displacement_not_indexed,
-			   int width_shift,
-			   int do_sign_extend)
-{
-	/* Return -1 for a fault, 0 for OK */
-	int error;
-	int destreg;
-	__u64 address;
-
-	error = generate_and_check_address(regs, opcode,
-			displacement_not_indexed, width_shift, &address);
-	if (error < 0) {
-		return error;
-	}
-
-	destreg = (opcode >> 4) & 0x3f;
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-	if (user_mode(regs)) {
-		__u64 buffer;
-
-		if (!access_ok(VERIFY_READ, (unsigned long) address, 1UL<<width_shift)) {
-			return -1;
-		}
-
-		if (__copy_user(&buffer, (const void *)(int)address, (1 << width_shift)) > 0) {
-			return -1; /* fault */
-		}
-		switch (width_shift) {
-		case 1:
-			if (do_sign_extend) {
-				regs->regs[destreg] = (__u64)(__s64) *(__s16 *) &buffer;
-			} else {
-				regs->regs[destreg] = (__u64) *(__u16 *) &buffer;
-			}
-			break;
-		case 2:
-			regs->regs[destreg] = (__u64)(__s64) *(__s32 *) &buffer;
-			break;
-		case 3:
-			regs->regs[destreg] = buffer;
-			break;
-		default:
-			printk("Unexpected width_shift %d in misaligned_load, PC=%08lx\n",
-				width_shift, (unsigned long) regs->pc);
-			break;
-		}
-	} else
-#endif
-	{
-		/* kernel mode - we can take short cuts since if we fault, it's a genuine bug */
-		__u64 lo, hi;
-
-		switch (width_shift) {
-		case 1:
-			misaligned_kernel_word_load(address, do_sign_extend, &regs->regs[destreg]);
-			break;
-		case 2:
-			asm ("ldlo.l %1, 0, %0" : "=r" (lo) : "r" (address));
-			asm ("ldhi.l %1, 3, %0" : "=r" (hi) : "r" (address));
-			regs->regs[destreg] = lo | hi;
-			break;
-		case 3:
-			asm ("ldlo.q %1, 0, %0" : "=r" (lo) : "r" (address));
-			asm ("ldhi.q %1, 7, %0" : "=r" (hi) : "r" (address));
-			regs->regs[destreg] = lo | hi;
-			break;
-
-		default:
-			printk("Unexpected width_shift %d in misaligned_load, PC=%08lx\n",
-				width_shift, (unsigned long) regs->pc);
-			break;
-		}
-	}
-
-	return 0;
-
-}
-
-static int misaligned_store(struct pt_regs *regs,
-			    __u32 opcode,
-			    int displacement_not_indexed,
-			    int width_shift)
-{
-	/* Return -1 for a fault, 0 for OK */
-	int error;
-	int srcreg;
-	__u64 address;
-
-	error = generate_and_check_address(regs, opcode,
-			displacement_not_indexed, width_shift, &address);
-	if (error < 0) {
-		return error;
-	}
-
-	srcreg = (opcode >> 4) & 0x3f;
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-	if (user_mode(regs)) {
-		__u64 buffer;
-
-		if (!access_ok(VERIFY_WRITE, (unsigned long) address, 1UL<<width_shift)) {
-			return -1;
-		}
-
-		switch (width_shift) {
-		case 1:
-			*(__u16 *) &buffer = (__u16) regs->regs[srcreg];
-			break;
-		case 2:
-			*(__u32 *) &buffer = (__u32) regs->regs[srcreg];
-			break;
-		case 3:
-			buffer = regs->regs[srcreg];
-			break;
-		default:
-			printk("Unexpected width_shift %d in misaligned_store, PC=%08lx\n",
-				width_shift, (unsigned long) regs->pc);
-			break;
-		}
-
-		if (__copy_user((void *)(int)address, &buffer, (1 << width_shift)) > 0) {
-			return -1; /* fault */
-		}
-	} else
-#endif
-	{
-		/* kernel mode - we can take short cuts since if we fault, it's a genuine bug */
-		__u64 val = regs->regs[srcreg];
-
-		switch (width_shift) {
-		case 1:
-			misaligned_kernel_word_store(address, val);
-			break;
-		case 2:
-			asm ("stlo.l %1, 0, %0" : : "r" (val), "r" (address));
-			asm ("sthi.l %1, 3, %0" : : "r" (val), "r" (address));
-			break;
-		case 3:
-			asm ("stlo.q %1, 0, %0" : : "r" (val), "r" (address));
-			asm ("sthi.q %1, 7, %0" : : "r" (val), "r" (address));
-			break;
-
-		default:
-			printk("Unexpected width_shift %d in misaligned_store, PC=%08lx\n",
-				width_shift, (unsigned long) regs->pc);
-			break;
-		}
-	}
-
-	return 0;
-
-}
-
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-/* Never need to fix up misaligned FPU accesses within the kernel since that's a real
-   error. */
-static int misaligned_fpu_load(struct pt_regs *regs,
-			   __u32 opcode,
-			   int displacement_not_indexed,
-			   int width_shift,
-			   int do_paired_load)
-{
-	/* Return -1 for a fault, 0 for OK */
-	int error;
-	int destreg;
-	__u64 address;
-
-	error = generate_and_check_address(regs, opcode,
-			displacement_not_indexed, width_shift, &address);
-	if (error < 0) {
-		return error;
-	}
-
-	destreg = (opcode >> 4) & 0x3f;
-	if (user_mode(regs)) {
-		__u64 buffer;
-		__u32 buflo, bufhi;
-
-		if (!access_ok(VERIFY_READ, (unsigned long) address, 1UL<<width_shift)) {
-			return -1;
-		}
-
-		if (__copy_user(&buffer, (const void *)(int)address, (1 << width_shift)) > 0) {
-			return -1; /* fault */
-		}
-		/* 'current' may be the current owner of the FPU state, so
-		   context switch the registers into memory so they can be
-		   indexed by register number. */
-		if (last_task_used_math == current) {
-			grab_fpu();
-			fpsave(&current->thread.fpu.hard);
-			release_fpu();
-			last_task_used_math = NULL;
-			regs->sr |= SR_FD;
-		}
-
-		buflo = *(__u32*) &buffer;
-		bufhi = *(1 + (__u32*) &buffer);
-
-		switch (width_shift) {
-		case 2:
-			current->thread.fpu.hard.fp_regs[destreg] = buflo;
-			break;
-		case 3:
-			if (do_paired_load) {
-				current->thread.fpu.hard.fp_regs[destreg] = buflo;
-				current->thread.fpu.hard.fp_regs[destreg+1] = bufhi;
-			} else {
-#if defined(CONFIG_LITTLE_ENDIAN)
-				current->thread.fpu.hard.fp_regs[destreg] = bufhi;
-				current->thread.fpu.hard.fp_regs[destreg+1] = buflo;
-#else
-				current->thread.fpu.hard.fp_regs[destreg] = buflo;
-				current->thread.fpu.hard.fp_regs[destreg+1] = bufhi;
-#endif
-			}
-			break;
-		default:
-			printk("Unexpected width_shift %d in misaligned_fpu_load, PC=%08lx\n",
-				width_shift, (unsigned long) regs->pc);
-			break;
-		}
-		return 0;
-	} else {
-		die ("Misaligned FPU load inside kernel", regs, 0);
-		return -1;
-	}
-
-
-}
-
-static int misaligned_fpu_store(struct pt_regs *regs,
-			   __u32 opcode,
-			   int displacement_not_indexed,
-			   int width_shift,
-			   int do_paired_load)
-{
-	/* Return -1 for a fault, 0 for OK */
-	int error;
-	int srcreg;
-	__u64 address;
-
-	error = generate_and_check_address(regs, opcode,
-			displacement_not_indexed, width_shift, &address);
-	if (error < 0) {
-		return error;
-	}
-
-	srcreg = (opcode >> 4) & 0x3f;
-	if (user_mode(regs)) {
-		__u64 buffer;
-		/* Initialise these to NaNs. */
-		__u32 buflo=0xffffffffUL, bufhi=0xffffffffUL;
-
-		if (!access_ok(VERIFY_WRITE, (unsigned long) address, 1UL<<width_shift)) {
-			return -1;
-		}
-
-		/* 'current' may be the current owner of the FPU state, so
-		   context switch the registers into memory so they can be
-		   indexed by register number. */
-		if (last_task_used_math == current) {
-			grab_fpu();
-			fpsave(&current->thread.fpu.hard);
-			release_fpu();
-			last_task_used_math = NULL;
-			regs->sr |= SR_FD;
-		}
-
-		switch (width_shift) {
-		case 2:
-			buflo = current->thread.fpu.hard.fp_regs[srcreg];
-			break;
-		case 3:
-			if (do_paired_load) {
-				buflo = current->thread.fpu.hard.fp_regs[srcreg];
-				bufhi = current->thread.fpu.hard.fp_regs[srcreg+1];
-			} else {
-#if defined(CONFIG_LITTLE_ENDIAN)
-				bufhi = current->thread.fpu.hard.fp_regs[srcreg];
-				buflo = current->thread.fpu.hard.fp_regs[srcreg+1];
-#else
-				buflo = current->thread.fpu.hard.fp_regs[srcreg];
-				bufhi = current->thread.fpu.hard.fp_regs[srcreg+1];
-#endif
-			}
-			break;
-		default:
-			printk("Unexpected width_shift %d in misaligned_fpu_store, PC=%08lx\n",
-				width_shift, (unsigned long) regs->pc);
-			break;
-		}
-
-		*(__u32*) &buffer = buflo;
-		*(1 + (__u32*) &buffer) = bufhi;
-		if (__copy_user((void *)(int)address, &buffer, (1 << width_shift)) > 0) {
-			return -1; /* fault */
-		}
-		return 0;
-	} else {
-		die ("Misaligned FPU load inside kernel", regs, 0);
-		return -1;
-	}
-}
-#endif
-
-static int misaligned_fixup(struct pt_regs *regs)
-{
-	unsigned long opcode;
-	int error;
-	int major, minor;
-
-#if !defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-	/* Never fixup user mode misaligned accesses without this option enabled. */
-	return -1;
-#else
-	if (!user_mode_unaligned_fixup_enable) return -1;
-#endif
-
-	error = read_opcode(regs->pc, &opcode, user_mode(regs));
-	if (error < 0) {
-		return error;
-	}
-	major = (opcode >> 26) & 0x3f;
-	minor = (opcode >> 16) & 0xf;
-
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-	if (user_mode(regs) && (user_mode_unaligned_fixup_count > 0)) {
-		--user_mode_unaligned_fixup_count;
-		/* Only do 'count' worth of these reports, to remove a potential DoS against syslog */
-		printk("Fixing up unaligned userspace access in \"%s\" pid=%d pc=0x%08x ins=0x%08lx\n",
-		       current->comm, task_pid_nr(current), (__u32)regs->pc, opcode);
-	} else
-#endif
-	if (!user_mode(regs) && (kernel_mode_unaligned_fixup_count > 0)) {
-		--kernel_mode_unaligned_fixup_count;
-		if (in_interrupt()) {
-			printk("Fixing up unaligned kernelspace access in interrupt pc=0x%08x ins=0x%08lx\n",
-			       (__u32)regs->pc, opcode);
-		} else {
-			printk("Fixing up unaligned kernelspace access in \"%s\" pid=%d pc=0x%08x ins=0x%08lx\n",
-			       current->comm, task_pid_nr(current), (__u32)regs->pc, opcode);
-		}
-	}
-
-
-	switch (major) {
-		case (0x84>>2): /* LD.W */
-			error = misaligned_load(regs, opcode, 1, 1, 1);
-			break;
-		case (0xb0>>2): /* LD.UW */
-			error = misaligned_load(regs, opcode, 1, 1, 0);
-			break;
-		case (0x88>>2): /* LD.L */
-			error = misaligned_load(regs, opcode, 1, 2, 1);
-			break;
-		case (0x8c>>2): /* LD.Q */
-			error = misaligned_load(regs, opcode, 1, 3, 0);
-			break;
-
-		case (0xa4>>2): /* ST.W */
-			error = misaligned_store(regs, opcode, 1, 1);
-			break;
-		case (0xa8>>2): /* ST.L */
-			error = misaligned_store(regs, opcode, 1, 2);
-			break;
-		case (0xac>>2): /* ST.Q */
-			error = misaligned_store(regs, opcode, 1, 3);
-			break;
-
-		case (0x40>>2): /* indexed loads */
-			switch (minor) {
-				case 0x1: /* LDX.W */
-					error = misaligned_load(regs, opcode, 0, 1, 1);
-					break;
-				case 0x5: /* LDX.UW */
-					error = misaligned_load(regs, opcode, 0, 1, 0);
-					break;
-				case 0x2: /* LDX.L */
-					error = misaligned_load(regs, opcode, 0, 2, 1);
-					break;
-				case 0x3: /* LDX.Q */
-					error = misaligned_load(regs, opcode, 0, 3, 0);
-					break;
-				default:
-					error = -1;
-					break;
-			}
-			break;
-
-		case (0x60>>2): /* indexed stores */
-			switch (minor) {
-				case 0x1: /* STX.W */
-					error = misaligned_store(regs, opcode, 0, 1);
-					break;
-				case 0x2: /* STX.L */
-					error = misaligned_store(regs, opcode, 0, 2);
-					break;
-				case 0x3: /* STX.Q */
-					error = misaligned_store(regs, opcode, 0, 3);
-					break;
-				default:
-					error = -1;
-					break;
-			}
-			break;
-
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-		case (0x94>>2): /* FLD.S */
-			error = misaligned_fpu_load(regs, opcode, 1, 2, 0);
-			break;
-		case (0x98>>2): /* FLD.P */
-			error = misaligned_fpu_load(regs, opcode, 1, 3, 1);
-			break;
-		case (0x9c>>2): /* FLD.D */
-			error = misaligned_fpu_load(regs, opcode, 1, 3, 0);
-			break;
-		case (0x1c>>2): /* floating indexed loads */
-			switch (minor) {
-			case 0x8: /* FLDX.S */
-				error = misaligned_fpu_load(regs, opcode, 0, 2, 0);
-				break;
-			case 0xd: /* FLDX.P */
-				error = misaligned_fpu_load(regs, opcode, 0, 3, 1);
-				break;
-			case 0x9: /* FLDX.D */
-				error = misaligned_fpu_load(regs, opcode, 0, 3, 0);
-				break;
-			default:
-				error = -1;
-				break;
-			}
-			break;
-		case (0xb4>>2): /* FLD.S */
-			error = misaligned_fpu_store(regs, opcode, 1, 2, 0);
-			break;
-		case (0xb8>>2): /* FLD.P */
-			error = misaligned_fpu_store(regs, opcode, 1, 3, 1);
-			break;
-		case (0xbc>>2): /* FLD.D */
-			error = misaligned_fpu_store(regs, opcode, 1, 3, 0);
-			break;
-		case (0x3c>>2): /* floating indexed stores */
-			switch (minor) {
-			case 0x8: /* FSTX.S */
-				error = misaligned_fpu_store(regs, opcode, 0, 2, 0);
-				break;
-			case 0xd: /* FSTX.P */
-				error = misaligned_fpu_store(regs, opcode, 0, 3, 1);
-				break;
-			case 0x9: /* FSTX.D */
-				error = misaligned_fpu_store(regs, opcode, 0, 3, 0);
-				break;
-			default:
-				error = -1;
-				break;
-			}
-			break;
-#endif
-
-		default:
-			/* Fault */
-			error = -1;
-			break;
-	}
-
-	if (error < 0) {
-		return error;
-	} else {
-		regs->pc += 4; /* Skip the instruction that's just been emulated */
-		return 0;
-	}
-
-}
-
-static ctl_table unaligned_table[] = {
-	{
-		.ctl_name	= CTL_UNNUMBERED,
-		.procname	= "kernel_reports",
-		.data		= &kernel_mode_unaligned_fixup_count,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec
-	},
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-	{
-		.ctl_name	= CTL_UNNUMBERED,
-		.procname	= "user_reports",
-		.data		= &user_mode_unaligned_fixup_count,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec
-	},
-	{
-		.ctl_name	= CTL_UNNUMBERED,
-		.procname	= "user_enable",
-		.data		= &user_mode_unaligned_fixup_enable,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec},
-#endif
-	{}
-};
-
-static ctl_table unaligned_root[] = {
-	{
-		.ctl_name	= CTL_UNNUMBERED,
-		.procname	= "unaligned_fixup",
-		.mode		= 0555,
-		unaligned_table
-	},
-	{}
-};
-
-static ctl_table sh64_root[] = {
-	{
-		.ctl_name	= CTL_UNNUMBERED,
-		.procname	= "sh64",
-		.mode		= 0555,
-		.child		= unaligned_root
-	},
-	{}
-};
-static struct ctl_table_header *sysctl_header;
-static int __init init_sysctl(void)
-{
-	sysctl_header = register_sysctl_table(sh64_root);
-	return 0;
-}
-
-__initcall(init_sysctl);
-
-
-asmlinkage void do_debug_interrupt(unsigned long code, struct pt_regs *regs)
-{
-	u64 peek_real_address_q(u64 addr);
-	u64 poke_real_address_q(u64 addr, u64 val);
-	unsigned long long DM_EXP_CAUSE_PHY = 0x0c100010;
-	unsigned long long exp_cause;
-	/* It's not worth ioremapping the debug module registers for the amount
-	   of access we make to them - just go direct to their physical
-	   addresses. */
-	exp_cause = peek_real_address_q(DM_EXP_CAUSE_PHY);
-	if (exp_cause & ~4) {
-		printk("DM.EXP_CAUSE had unexpected bits set (=%08lx)\n",
-			(unsigned long)(exp_cause & 0xffffffff));
-	}
-	show_state();
-	/* Clear all DEBUGINT causes */
-	poke_real_address_q(DM_EXP_CAUSE_PHY, 0x0);
-}
-- 
cgit v1.2.3-59-g8ed1b


From cc8eae7f5190668337463d6bfba60c137bce0522 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sat, 10 Nov 2007 20:15:31 +0900
Subject: sh: imask IRQ depends on sh32.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/irq/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/irq/Makefile b/arch/sh/kernel/cpu/irq/Makefile
index 8da8e178f09c..81d37e948b86 100644
--- a/arch/sh/kernel/cpu/irq/Makefile
+++ b/arch/sh/kernel/cpu/irq/Makefile
@@ -1,7 +1,8 @@
 #
 # Makefile for the Linux/SuperH CPU-specifc IRQ handlers.
 #
-obj-y	+= imask.o intc.o
+obj-y	+= intc.o
 
+obj-$(CONFIG_SUPERH32)			+= imask.o
 obj-$(CONFIG_CPU_HAS_IPR_IRQ)		+= ipr.o
 obj-$(CONFIG_CPU_HAS_MASKREG_IRQ)	+= maskreg.o
-- 
cgit v1.2.3-59-g8ed1b


From c881cbc033c80d92d1bb7a0446735561a46e1f9c Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sat, 10 Nov 2007 20:18:18 +0900
Subject: sh: Don't reference UBC code in CPU init on sh64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/init.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c
index c217c4bf0085..f37f1c031631 100644
--- a/arch/sh/kernel/cpu/init.c
+++ b/arch/sh/kernel/cpu/init.c
@@ -21,8 +21,10 @@
 #include <asm/cacheflush.h>
 #include <asm/cache.h>
 #include <asm/io.h>
-#include <asm/ubc.h>
 #include <asm/smp.h>
+#ifdef CONFIG_SUPERH32
+#include <asm/ubc.h>
+#endif
 
 /*
  * Generic wrapper for command line arguments to disable on-chip
@@ -273,7 +275,10 @@ asmlinkage void __cpuinit sh_cpu_init(void)
 	 * like PTRACE_SINGLESTEP or doing hardware watchpoints in GDB.  So ..
 	 * we wake it up and hope that all is well.
 	 */
+#ifdef CONFIG_SUPERH32
 	if (raw_smp_processor_id() == 0)
 		ubc_wakeup();
+#endif
+
 	speculative_execution_init();
 }
-- 
cgit v1.2.3-59-g8ed1b


From 27a511c6f37c05c5cf8fae9fe513f60d87af9158 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sat, 10 Nov 2007 20:25:28 +0900
Subject: sh: Disable initial cache flush on SH-5.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/init.c | 32 ++++++++++++++++++--------------
 1 file changed, 18 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c
index f37f1c031631..fd1688e6c61c 100644
--- a/arch/sh/kernel/cpu/init.c
+++ b/arch/sh/kernel/cpu/init.c
@@ -63,24 +63,11 @@ static void __init speculative_execution_init(void)
 /*
  * Generic first-level cache init
  */
+#ifdef CONFIG_SUPERH32
 static void __init cache_init(void)
 {
 	unsigned long ccr, flags;
 
-	/* First setup the rest of the I-cache info */
-	current_cpu_data.icache.entry_mask = current_cpu_data.icache.way_incr -
-				      current_cpu_data.icache.linesz;
-
-	current_cpu_data.icache.way_size = current_cpu_data.icache.sets *
-				    current_cpu_data.icache.linesz;
-
-	/* And the D-cache too */
-	current_cpu_data.dcache.entry_mask = current_cpu_data.dcache.way_incr -
-				      current_cpu_data.dcache.linesz;
-
-	current_cpu_data.dcache.way_size = current_cpu_data.dcache.sets *
-				    current_cpu_data.dcache.linesz;
-
 	jump_to_P2();
 	ccr = ctrl_inl(CCR);
 
@@ -160,6 +147,9 @@ static void __init cache_init(void)
 	ctrl_outl(flags, CCR);
 	back_to_P1();
 }
+#else
+#define cache_init()	do { } while (0)
+#endif
 
 #ifdef CONFIG_SH_DSP
 static void __init release_dsp(void)
@@ -230,6 +220,20 @@ asmlinkage void __cpuinit sh_cpu_init(void)
 	if (current_cpu_data.type == CPU_SH_NONE)
 		panic("Unknown CPU");
 
+	/* First setup the rest of the I-cache info */
+	current_cpu_data.icache.entry_mask = current_cpu_data.icache.way_incr -
+				      current_cpu_data.icache.linesz;
+
+	current_cpu_data.icache.way_size = current_cpu_data.icache.sets *
+				    current_cpu_data.icache.linesz;
+
+	/* And the D-cache too */
+	current_cpu_data.dcache.entry_mask = current_cpu_data.dcache.way_incr -
+				      current_cpu_data.dcache.linesz;
+
+	current_cpu_data.dcache.way_size = current_cpu_data.dcache.sets *
+				    current_cpu_data.dcache.linesz;
+
 	/* Init the cache */
 	cache_init();
 
-- 
cgit v1.2.3-59-g8ed1b


From 256b22ca66987c537064dc25b0b267966189b5ba Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sat, 10 Nov 2007 20:27:03 +0900
Subject: sh: Have SH-5 provide an {en,dis}able_fpu() impl.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/ptrace_64.c    |  8 ++++----
 arch/sh/kernel/traps_64.c     |  8 ++++----
 include/asm-sh/processor_64.h | 15 +++++++++++++--
 3 files changed, 21 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index 8a2d339cf760..14e7d5e5679a 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -74,9 +74,9 @@ get_fpu_long(struct task_struct *task, unsigned long addr)
 	}
 
 	if (last_task_used_math == task) {
-		grab_fpu();
+		enable_fpu();
 		fpsave(&task->thread.fpu.hard);
-		release_fpu();
+		disable_fpu();
 		last_task_used_math = 0;
 		regs->sr |= SR_FD;
 	}
@@ -110,9 +110,9 @@ put_fpu_long(struct task_struct *task, unsigned long addr, unsigned long data)
 		fpinit(&task->thread.fpu.hard);
 		set_stopped_child_used_math(task);
 	} else if (last_task_used_math == task) {
-		grab_fpu();
+		enable_fpu();
 		fpsave(&task->thread.fpu.hard);
-		release_fpu();
+		disable_fpu();
 		last_task_used_math = 0;
 		regs->sr |= SR_FD;
 	}
diff --git a/arch/sh/kernel/traps_64.c b/arch/sh/kernel/traps_64.c
index 742ce18b6820..0f4ea3ac3e0b 100644
--- a/arch/sh/kernel/traps_64.c
+++ b/arch/sh/kernel/traps_64.c
@@ -617,9 +617,9 @@ static int misaligned_fpu_load(struct pt_regs *regs,
 		   context switch the registers into memory so they can be
 		   indexed by register number. */
 		if (last_task_used_math == current) {
-			grab_fpu();
+			enable_fpu();
 			fpsave(&current->thread.fpu.hard);
-			release_fpu();
+			disable_fpu();
 			last_task_used_math = NULL;
 			regs->sr |= SR_FD;
 		}
@@ -690,9 +690,9 @@ static int misaligned_fpu_store(struct pt_regs *regs,
 		   context switch the registers into memory so they can be
 		   indexed by register number. */
 		if (last_task_used_math == current) {
-			grab_fpu();
+			enable_fpu();
 			fpsave(&current->thread.fpu.hard);
-			release_fpu();
+			disable_fpu();
 			last_task_used_math = NULL;
 			regs->sr |= SR_FD;
 		}
diff --git a/include/asm-sh/processor_64.h b/include/asm-sh/processor_64.h
index ecd6b403f7db..312fd73fb87e 100644
--- a/include/asm-sh/processor_64.h
+++ b/include/asm-sh/processor_64.h
@@ -18,6 +18,7 @@
 #include <asm/page.h>
 #include <asm/types.h>
 #include <asm/cache.h>
+#include <asm/ptrace.h>
 #include <asm/cpu/registers.h>
 
 /*
@@ -218,7 +219,7 @@ extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
  * FPU lazy state save handling.
  */
 
-static inline void release_fpu(void)
+static inline void disable_fpu(void)
 {
 	unsigned long long __dummy;
 
@@ -230,7 +231,7 @@ static inline void release_fpu(void)
 			     : "r" (SR_FD));
 }
 
-static inline void grab_fpu(void)
+static inline void enable_fpu(void)
 {
 	unsigned long long __dummy;
 
@@ -242,6 +243,16 @@ static inline void grab_fpu(void)
 			     : "r" (~SR_FD));
 }
 
+static inline void release_fpu(struct pt_regs *regs)
+{
+	regs->sr |= SR_FD;
+}
+
+static inline void grab_fpu(struct pt_regs *regs)
+{
+	regs->sr &= ~SR_FD;
+}
+
 /* Round to nearest, no exceptions on inexact, overflow, underflow,
    zero-divide, invalid.  Configure option for whether to flush denorms to
    zero, or except if a denorm is encountered.  */
-- 
cgit v1.2.3-59-g8ed1b


From 959f7d587e236a2d218f527771f156c336409d11 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sat, 10 Nov 2007 20:35:53 +0900
Subject: sh: Move over the SH-5 head.S and tlb.h.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile_32 |   2 +-
 arch/sh/kernel/Makefile_64 |   2 +-
 arch/sh/kernel/head.S      | 120 ---------------
 arch/sh/kernel/head_32.S   | 120 +++++++++++++++
 arch/sh/kernel/head_64.S   | 367 ++++++++++++++++++++++++++++++++++++++++++++
 arch/sh64/kernel/head.S    | 372 ---------------------------------------------
 include/asm-sh/tlb.h       |  10 +-
 include/asm-sh/tlb_64.h    |  69 +++++++++
 include/asm-sh64/tlb.h     |  92 -----------
 9 files changed, 567 insertions(+), 587 deletions(-)
 delete mode 100644 arch/sh/kernel/head.S
 create mode 100644 arch/sh/kernel/head_32.S
 create mode 100644 arch/sh/kernel/head_64.S
 delete mode 100644 arch/sh64/kernel/head.S
 create mode 100644 include/asm-sh/tlb_64.h
 delete mode 100644 include/asm-sh64/tlb.h

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index 29b44eb3b934..35be5e9674f8 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/arch/sh/kernel/Makefile_32
@@ -2,7 +2,7 @@
 # Makefile for the Linux/SuperH kernel.
 #
 
-extra-y	:= head.o init_task.o vmlinux.lds
+extra-y	:= head_32.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_32.o \
 	   ptrace_32.o semaphore.o setup.o signal_32.o sys_sh.o syscalls.o \
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index fb87d642d1c1..6e72ed4c07fb 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/arch/sh/kernel/Makefile_64
@@ -1,4 +1,4 @@
-extra-y	:= head.o init_task.o vmlinux.lds
+extra-y	:= head_64.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
 	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh64.o syscalls.o \
diff --git a/arch/sh/kernel/head.S b/arch/sh/kernel/head.S
deleted file mode 100644
index 3338239717f1..000000000000
--- a/arch/sh/kernel/head.S
+++ /dev/null
@@ -1,120 +0,0 @@
-/* $Id: head.S,v 1.7 2003/09/01 17:58:19 lethal Exp $
- *
- *  arch/sh/kernel/head.S
- *
- *  Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Head.S contains the SH exception handlers and startup code.
- */
-#include <linux/linkage.h>
-#include <asm/thread_info.h>
-
-#ifdef CONFIG_CPU_SH4A
-#define SYNCO()		synco
-
-#define PREFI(label, reg)	\
-	mov.l	label, reg;	\
-	prefi	@reg
-#else
-#define SYNCO()
-#define PREFI(label, reg)
-#endif
-
-	.section	.empty_zero_page, "aw"
-ENTRY(empty_zero_page)
-	.long	1		/* MOUNT_ROOT_RDONLY */
-	.long	0		/* RAMDISK_FLAGS */
-	.long	0x0200		/* ORIG_ROOT_DEV */
-	.long	1		/* LOADER_TYPE */
-	.long	0x00360000	/* INITRD_START */
-	.long	0x000a0000	/* INITRD_SIZE */
-	.long	0
-1:
-	.skip	PAGE_SIZE - empty_zero_page - 1b
-
-	.section	.text.head, "ax"
-
-/*
- * Condition at the entry of _stext:
- *
- *   BSC has already been initialized.
- *   INTC may or may not be initialized.
- *   VBR may or may not be initialized.
- *   MMU may or may not be initialized.
- *   Cache may or may not be initialized.
- *   Hardware (including on-chip modules) may or may not be initialized. 
- *
- */
-ENTRY(_stext)
-	!			Initialize Status Register
-	mov.l	1f, r0		! MD=1, RB=0, BL=0, IMASK=0xF
-	ldc	r0, sr
-	!			Initialize global interrupt mask
-#ifdef CONFIG_CPU_HAS_SR_RB
-	mov	#0, r0
-	ldc	r0, r6_bank
-#endif
-	
-	/*
-	 * Prefetch if possible to reduce cache miss penalty.
-	 *
-	 * We do this early on for SH-4A as a micro-optimization,
-	 * as later on we will have speculative execution enabled
-	 * and this will become less of an issue.
-	 */
-	PREFI(5f, r0)
-	PREFI(6f, r0)
-
-	!
-	mov.l	2f, r0
-	mov	r0, r15		! Set initial r15 (stack pointer)
-#ifdef CONFIG_CPU_HAS_SR_RB
-	mov.l	7f, r0
-	ldc	r0, r7_bank	! ... and initial thread_info
-#endif
-	
-	!			Clear BSS area
-#ifdef CONFIG_SMP	
-	mov.l	3f, r0
-	cmp/eq	#0, r0		! skip clear if set to zero
-	bt	10f
-#endif
-	
-	mov.l	3f, r1
-	add	#4, r1
-	mov.l	4f, r2
-	mov	#0, r0
-9:	cmp/hs	r2, r1
-	bf/s	9b		! while (r1 < r2)
-	 mov.l	r0,@-r2
-
-10:		
-	!			Additional CPU initialization
-	mov.l	6f, r0
-	jsr	@r0
-	 nop
-
-	SYNCO()			! Wait for pending instructions..
-	
-	!			Start kernel
-	mov.l	5f, r0
-	jmp	@r0
-	 nop
-
-	.balign 4
-#if defined(CONFIG_CPU_SH2)
-1:	.long	0x000000F0		! IMASK=0xF
-#else
-1:	.long	0x400080F0		! MD=1, RB=0, BL=0, FD=1, IMASK=0xF
-#endif
-ENTRY(stack_start)
-2:	.long	init_thread_union+THREAD_SIZE
-3:	.long	__bss_start
-4:	.long	_end
-5:	.long	start_kernel
-6:	.long	sh_cpu_init
-7:	.long	init_thread_union
diff --git a/arch/sh/kernel/head_32.S b/arch/sh/kernel/head_32.S
new file mode 100644
index 000000000000..3338239717f1
--- /dev/null
+++ b/arch/sh/kernel/head_32.S
@@ -0,0 +1,120 @@
+/* $Id: head.S,v 1.7 2003/09/01 17:58:19 lethal Exp $
+ *
+ *  arch/sh/kernel/head.S
+ *
+ *  Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Head.S contains the SH exception handlers and startup code.
+ */
+#include <linux/linkage.h>
+#include <asm/thread_info.h>
+
+#ifdef CONFIG_CPU_SH4A
+#define SYNCO()		synco
+
+#define PREFI(label, reg)	\
+	mov.l	label, reg;	\
+	prefi	@reg
+#else
+#define SYNCO()
+#define PREFI(label, reg)
+#endif
+
+	.section	.empty_zero_page, "aw"
+ENTRY(empty_zero_page)
+	.long	1		/* MOUNT_ROOT_RDONLY */
+	.long	0		/* RAMDISK_FLAGS */
+	.long	0x0200		/* ORIG_ROOT_DEV */
+	.long	1		/* LOADER_TYPE */
+	.long	0x00360000	/* INITRD_START */
+	.long	0x000a0000	/* INITRD_SIZE */
+	.long	0
+1:
+	.skip	PAGE_SIZE - empty_zero_page - 1b
+
+	.section	.text.head, "ax"
+
+/*
+ * Condition at the entry of _stext:
+ *
+ *   BSC has already been initialized.
+ *   INTC may or may not be initialized.
+ *   VBR may or may not be initialized.
+ *   MMU may or may not be initialized.
+ *   Cache may or may not be initialized.
+ *   Hardware (including on-chip modules) may or may not be initialized. 
+ *
+ */
+ENTRY(_stext)
+	!			Initialize Status Register
+	mov.l	1f, r0		! MD=1, RB=0, BL=0, IMASK=0xF
+	ldc	r0, sr
+	!			Initialize global interrupt mask
+#ifdef CONFIG_CPU_HAS_SR_RB
+	mov	#0, r0
+	ldc	r0, r6_bank
+#endif
+	
+	/*
+	 * Prefetch if possible to reduce cache miss penalty.
+	 *
+	 * We do this early on for SH-4A as a micro-optimization,
+	 * as later on we will have speculative execution enabled
+	 * and this will become less of an issue.
+	 */
+	PREFI(5f, r0)
+	PREFI(6f, r0)
+
+	!
+	mov.l	2f, r0
+	mov	r0, r15		! Set initial r15 (stack pointer)
+#ifdef CONFIG_CPU_HAS_SR_RB
+	mov.l	7f, r0
+	ldc	r0, r7_bank	! ... and initial thread_info
+#endif
+	
+	!			Clear BSS area
+#ifdef CONFIG_SMP	
+	mov.l	3f, r0
+	cmp/eq	#0, r0		! skip clear if set to zero
+	bt	10f
+#endif
+	
+	mov.l	3f, r1
+	add	#4, r1
+	mov.l	4f, r2
+	mov	#0, r0
+9:	cmp/hs	r2, r1
+	bf/s	9b		! while (r1 < r2)
+	 mov.l	r0,@-r2
+
+10:		
+	!			Additional CPU initialization
+	mov.l	6f, r0
+	jsr	@r0
+	 nop
+
+	SYNCO()			! Wait for pending instructions..
+	
+	!			Start kernel
+	mov.l	5f, r0
+	jmp	@r0
+	 nop
+
+	.balign 4
+#if defined(CONFIG_CPU_SH2)
+1:	.long	0x000000F0		! IMASK=0xF
+#else
+1:	.long	0x400080F0		! MD=1, RB=0, BL=0, FD=1, IMASK=0xF
+#endif
+ENTRY(stack_start)
+2:	.long	init_thread_union+THREAD_SIZE
+3:	.long	__bss_start
+4:	.long	_end
+5:	.long	start_kernel
+6:	.long	sh_cpu_init
+7:	.long	init_thread_union
diff --git a/arch/sh/kernel/head_64.S b/arch/sh/kernel/head_64.S
new file mode 100644
index 000000000000..8015af6d1da2
--- /dev/null
+++ b/arch/sh/kernel/head_64.S
@@ -0,0 +1,367 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/kernel/head.S
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003, 2004  Paul Mundt
+ *
+ *
+ * benedict.gaster@superh.com:	 2nd May 2002
+ *    Moved definition of empty_zero_page to its own section allowing
+ *    it to be placed at an absolute address known at load time.
+ *
+ * lethal@linux-sh.org:          9th May 2003
+ *    Kill off GLOBAL_NAME() usage.
+ *
+ * lethal@linux-sh.org:          8th May 2004
+ *    Add early SCIF console DTLB mapping.
+ */
+#include <asm/page.h>
+#include <asm/cache.h>
+#include <asm/tlb.h>
+#include <asm/cpu/registers.h>
+#include <asm/cpu/mmu_context.h>
+#include <asm/thread_info.h>
+
+/*
+ * MMU defines: TLB boundaries.
+ */
+
+#define MMUIR_FIRST	ITLB_FIXED
+#define MMUIR_END	ITLB_LAST_VAR_UNRESTRICTED+TLB_STEP
+#define MMUIR_STEP	TLB_STEP
+
+#define MMUDR_FIRST	DTLB_FIXED
+#define MMUDR_END	DTLB_LAST_VAR_UNRESTRICTED+TLB_STEP
+#define MMUDR_STEP	TLB_STEP
+
+/* Safety check : CONFIG_CACHED_MEMORY_OFFSET has to be a multiple of 512Mb */
+#if (CONFIG_CACHED_MEMORY_OFFSET & ((1UL<<29)-1))
+#error "CONFIG_CACHED_MEMORY_OFFSET must be a multiple of 512Mb"
+#endif
+
+/*
+ * MMU defines: Fixed TLBs.
+ */
+/* Deal safely with the case where the base of RAM is not 512Mb aligned */
+
+#define ALIGN_512M_MASK (0xffffffffe0000000)
+#define ALIGNED_EFFECTIVE ((CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START) & ALIGN_512M_MASK)
+#define ALIGNED_PHYSICAL (CONFIG_MEMORY_START & ALIGN_512M_MASK)
+
+#define MMUIR_TEXT_H	(0x0000000000000003 | ALIGNED_EFFECTIVE)
+			/* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
+
+#define MMUIR_TEXT_L	(0x000000000000009a | ALIGNED_PHYSICAL)
+			/* 512 Mb, Cacheable, Write-back, execute, Not User, Ph. Add. */
+
+#define MMUDR_CACHED_H	0x0000000000000003 | ALIGNED_EFFECTIVE
+			/* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
+#define MMUDR_CACHED_L	0x000000000000015a | ALIGNED_PHYSICAL
+			/* 512 Mb, Cacheable, Write-back, read/write, Not User, Ph. Add. */
+
+#ifdef CONFIG_ICACHE_DISABLED
+#define	ICCR0_INIT_VAL	ICCR0_OFF			/* ICACHE off */
+#else
+#define	ICCR0_INIT_VAL	ICCR0_ON | ICCR0_ICI		/* ICE + ICI */
+#endif
+#define	ICCR1_INIT_VAL	ICCR1_NOLOCK			/* No locking */
+
+#if defined (CONFIG_DCACHE_DISABLED)
+#define	OCCR0_INIT_VAL	OCCR0_OFF			   /* D-cache: off  */
+#elif defined (CONFIG_DCACHE_WRITE_THROUGH)
+#define	OCCR0_INIT_VAL	OCCR0_ON | OCCR0_OCI | OCCR0_WT	   /* D-cache: on,   */
+							   /* WT, invalidate */
+#elif defined (CONFIG_DCACHE_WRITE_BACK)
+#define	OCCR0_INIT_VAL	OCCR0_ON | OCCR0_OCI | OCCR0_WB	   /* D-cache: on,   */
+							   /* WB, invalidate */
+#else
+#error preprocessor flag CONFIG_DCACHE_... not recognized!
+#endif
+
+#define	OCCR1_INIT_VAL	OCCR1_NOLOCK			   /* No locking     */
+
+	.section	.empty_zero_page, "aw"
+	.global empty_zero_page
+
+empty_zero_page:
+	.long	1		/* MOUNT_ROOT_RDONLY */
+	.long	0		/* RAMDISK_FLAGS */
+	.long	0x0200		/* ORIG_ROOT_DEV */
+	.long	1		/* LOADER_TYPE */
+	.long	0x00800000	/* INITRD_START */
+	.long	0x00800000	/* INITRD_SIZE */
+	.long	0
+
+	.text
+	.balign 4096,0,4096
+
+	.section	.data, "aw"
+	.balign	PAGE_SIZE
+
+	.section	.data, "aw"
+	.balign	PAGE_SIZE
+
+	.global swapper_pg_dir
+swapper_pg_dir:
+	.space PAGE_SIZE, 0
+
+	.global empty_bad_page
+empty_bad_page:
+	.space PAGE_SIZE, 0
+
+	.global empty_bad_pte_table
+empty_bad_pte_table:
+	.space PAGE_SIZE, 0
+
+	.global	fpu_in_use
+fpu_in_use:	.quad	0
+
+
+	.section	.text.head, "ax"
+	.balign L1_CACHE_BYTES
+/*
+ * Condition at the entry of __stext:
+ * . Reset state:
+ *   . SR.FD    = 1		(FPU disabled)
+ *   . SR.BL    = 1		(Exceptions disabled)
+ *   . SR.MD    = 1		(Privileged Mode)
+ *   . SR.MMU   = 0		(MMU Disabled)
+ *   . SR.CD    = 0		(CTC User Visible)
+ *   . SR.IMASK = Undefined	(Interrupt Mask)
+ *
+ * Operations supposed to be performed by __stext:
+ * . prevent speculative fetch onto device memory while MMU is off
+ * . reflect as much as possible SH5 ABI (r15, r26, r27, r18)
+ * . first, save CPU state and set it to something harmless
+ * . any CPU detection and/or endianness settings (?)
+ * . initialize EMI/LMI (but not TMU/RTC/INTC/SCIF): TBD
+ * . set initial TLB entries for cached and uncached regions
+ *   (no fine granularity paging)
+ * . set initial cache state
+ * . enable MMU and caches
+ * . set CPU to a consistent state
+ *   . registers (including stack pointer and current/KCR0)
+ *   . NOT expecting to set Exception handling nor VBR/RESVEC/DCR
+ *     at this stage. This is all to later Linux initialization steps.
+ *   . initialize FPU
+ * . clear BSS
+ * . jump into start_kernel()
+ * . be prepared to hopeless start_kernel() returns.
+ *
+ */
+	.global _stext
+_stext:
+	/*
+	 * Prevent speculative fetch on device memory due to
+	 * uninitialized target registers.
+	 */
+	ptabs/u	ZERO, tr0
+	ptabs/u	ZERO, tr1
+	ptabs/u	ZERO, tr2
+	ptabs/u	ZERO, tr3
+	ptabs/u	ZERO, tr4
+	ptabs/u	ZERO, tr5
+	ptabs/u	ZERO, tr6
+	ptabs/u	ZERO, tr7
+	synci
+
+	/*
+	 * Read/Set CPU state. After this block:
+	 * r29 = Initial SR
+	 */
+	getcon	SR, r29
+	movi	SR_HARMLESS, r20
+	putcon	r20, SR
+
+	/*
+	 * Initialize EMI/LMI. To Be Done.
+	 */
+
+	/*
+	 * CPU detection and/or endianness settings (?). To Be Done.
+	 * Pure PIC code here, please ! Just save state into r30.
+         * After this block:
+	 * r30 = CPU type/Platform Endianness
+	 */
+
+	/*
+	 * Set initial TLB entries for cached and uncached regions.
+	 * Note: PTA/BLINK is PIC code, PTABS/BLINK isn't !
+	 */
+	/* Clear ITLBs */
+	pta	clear_ITLB, tr1
+	movi	MMUIR_FIRST, r21
+	movi	MMUIR_END, r22
+clear_ITLB:
+	putcfg	r21, 0, ZERO		/* Clear MMUIR[n].PTEH.V */
+	addi	r21, MMUIR_STEP, r21
+        bne	r21, r22, tr1
+
+	/* Clear DTLBs */
+	pta	clear_DTLB, tr1
+	movi	MMUDR_FIRST, r21
+	movi	MMUDR_END, r22
+clear_DTLB:
+	putcfg	r21, 0, ZERO		/* Clear MMUDR[n].PTEH.V */
+	addi	r21, MMUDR_STEP, r21
+        bne	r21, r22, tr1
+
+	/* Map one big (512Mb) page for ITLB */
+	movi	MMUIR_FIRST, r21
+	movi	MMUIR_TEXT_L, r22	/* PTEL first */
+	add.l	r22, r63, r22		/* Sign extend */
+	putcfg	r21, 1, r22		/* Set MMUIR[0].PTEL */
+	movi	MMUIR_TEXT_H, r22	/* PTEH last */
+	add.l	r22, r63, r22		/* Sign extend */
+	putcfg	r21, 0, r22		/* Set MMUIR[0].PTEH */
+
+	/* Map one big CACHED (512Mb) page for DTLB */
+	movi	MMUDR_FIRST, r21
+	movi	MMUDR_CACHED_L, r22	/* PTEL first */
+	add.l	r22, r63, r22		/* Sign extend */
+	putcfg	r21, 1, r22		/* Set MMUDR[0].PTEL */
+	movi	MMUDR_CACHED_H, r22	/* PTEH last */
+	add.l	r22, r63, r22		/* Sign extend */
+	putcfg	r21, 0, r22		/* Set MMUDR[0].PTEH */
+
+#ifdef CONFIG_EARLY_PRINTK
+	/*
+	 * Setup a DTLB translation for SCIF phys.
+	 */
+	addi    r21, MMUDR_STEP, r21
+	movi    0x0a03, r22	/* SCIF phys */
+	shori   0x0148, r22
+	putcfg  r21, 1, r22	/* PTEL first */
+	movi    0xfa03, r22	/* 0xfa030000, fixed SCIF virt */
+	shori   0x0003, r22
+	putcfg  r21, 0, r22	/* PTEH last */
+#endif
+
+	/*
+	 * Set cache behaviours.
+	 */
+	/* ICache */
+	movi	ICCR_BASE, r21
+	movi	ICCR0_INIT_VAL, r22
+	movi	ICCR1_INIT_VAL, r23
+	putcfg	r21, ICCR_REG0, r22
+	putcfg	r21, ICCR_REG1, r23
+
+	/* OCache */
+	movi	OCCR_BASE, r21
+	movi	OCCR0_INIT_VAL, r22
+	movi	OCCR1_INIT_VAL, r23
+	putcfg	r21, OCCR_REG0, r22
+	putcfg	r21, OCCR_REG1, r23
+
+
+	/*
+	 * Enable Caches and MMU. Do the first non-PIC jump.
+         * Now head.S global variables, constants and externs
+	 * can be used.
+	 */
+	getcon	SR, r21
+	movi	SR_ENABLE_MMU, r22
+	or	r21, r22, r21
+	putcon	r21, SSR
+	movi	hyperspace, r22
+	ori	r22, 1, r22	    /* Make it SHmedia, not required but..*/
+	putcon	r22, SPC
+	synco
+	rte			    /* And now go into the hyperspace ... */
+hyperspace:			    /* ... that's the next instruction !  */
+
+	/*
+	 * Set CPU to a consistent state.
+	 * r31 = FPU support flag
+	 * tr0/tr7 in use. Others give a chance to loop somewhere safe
+	 */
+	movi	start_kernel, r32
+	ori	r32, 1, r32
+
+	ptabs	r32, tr0		    /* r32 = _start_kernel address        */
+	pta/u	hopeless, tr1
+	pta/u	hopeless, tr2
+	pta/u	hopeless, tr3
+	pta/u	hopeless, tr4
+	pta/u	hopeless, tr5
+	pta/u	hopeless, tr6
+	pta/u	hopeless, tr7
+	gettr	tr1, r28			/* r28 = hopeless address */
+
+	/* Set initial stack pointer */
+	movi	init_thread_union, SP
+	putcon	SP, KCR0		/* Set current to init_task */
+	movi	THREAD_SIZE, r22	/* Point to the end */
+	add	SP, r22, SP
+
+	/*
+	 * Initialize FPU.
+	 * Keep FPU flag in r31. After this block:
+	 * r31 = FPU flag
+	 */
+	movi fpu_in_use, r31	/* Temporary */
+
+#ifdef CONFIG_SH_FPU
+	getcon	SR, r21
+	movi	SR_ENABLE_FPU, r22
+	and	r21, r22, r22
+	putcon	r22, SR			/* Try to enable */
+	getcon	SR, r22
+	xor	r21, r22, r21
+	shlri	r21, 15, r21		/* Supposedly 0/1 */
+	st.q	r31, 0 , r21		/* Set fpu_in_use */
+#else
+	movi	0, r21
+	st.q	r31, 0 , r21		/* Set fpu_in_use */
+#endif
+	or	r21, ZERO, r31		/* Set FPU flag at last */
+
+#ifndef CONFIG_SH_NO_BSS_INIT
+/* Don't clear BSS if running on slow platforms such as an RTL simulation,
+   remote memory via SHdebug link, etc.  For these the memory can be guaranteed
+   to be all zero on boot anyway. */
+	/*
+	 * Clear bss
+	 */
+	pta	clear_quad, tr1
+	movi	__bss_start, r22
+	movi	_end, r23
+clear_quad:
+	st.q	r22, 0, ZERO
+	addi	r22, 8, r22
+	bne	r22, r23, tr1		/* Both quad aligned, see vmlinux.lds.S */
+#endif
+	pta/u	hopeless, tr1
+
+	/* Say bye to head.S but be prepared to wrongly get back ... */
+	blink	tr0, LINK
+
+	/* If we ever get back here through LINK/tr1-tr7 */
+	pta/u	hopeless, tr7
+
+hopeless:
+	/*
+	 * Something's badly wrong here. Loop endlessly,
+         * there's nothing more we can do about it.
+	 *
+	 * Note on hopeless: it can be jumped into invariably
+	 * before or after jumping into hyperspace. The only
+	 * requirement is to be PIC called (PTA) before and
+	 * any way (PTA/PTABS) after. According to Virtual
+	 * to Physical mapping a simulator/emulator can easily
+	 * tell where we came here from just looking at hopeless
+	 * (PC) address.
+	 *
+	 * For debugging purposes:
+	 * (r28) hopeless/loop address
+	 * (r29) Original SR
+	 * (r30) CPU type/Platform endianness
+	 * (r31) FPU Support
+	 * (r32) _start_kernel address
+	 */
+	blink	tr7, ZERO
diff --git a/arch/sh64/kernel/head.S b/arch/sh64/kernel/head.S
deleted file mode 100644
index 186406d3ad9c..000000000000
--- a/arch/sh64/kernel/head.S
+++ /dev/null
@@ -1,372 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/head.S
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003, 2004  Paul Mundt
- *
- *
- * benedict.gaster@superh.com:	 2nd May 2002
- *    Moved definition of empty_zero_page to its own section allowing
- *    it to be placed at an absolute address known at load time.
- *
- * lethal@linux-sh.org:          9th May 2003
- *    Kill off GLOBAL_NAME() usage.
- *
- * lethal@linux-sh.org:          8th May 2004
- *    Add early SCIF console DTLB mapping.
- */
-
-
-#include <asm/page.h>
-#include <asm/mmu_context.h>
-#include <asm/cache.h>
-#include <asm/tlb.h>
-#include <asm/processor.h>
-#include <asm/registers.h>
-#include <asm/thread_info.h>
-
-/*
- * MMU defines: TLB boundaries.
- */
-
-#define MMUIR_FIRST	ITLB_FIXED
-#define MMUIR_END	ITLB_LAST_VAR_UNRESTRICTED+TLB_STEP
-#define MMUIR_STEP	TLB_STEP
-
-#define MMUDR_FIRST	DTLB_FIXED
-#define MMUDR_END	DTLB_LAST_VAR_UNRESTRICTED+TLB_STEP
-#define MMUDR_STEP	TLB_STEP
-
-/* Safety check : CONFIG_CACHED_MEMORY_OFFSET has to be a multiple of 512Mb */
-#if (CONFIG_CACHED_MEMORY_OFFSET & ((1UL<<29)-1))
-#error "CONFIG_CACHED_MEMORY_OFFSET must be a multiple of 512Mb"
-#endif
-
-/*
- * MMU defines: Fixed TLBs.
- */
-/* Deal safely with the case where the base of RAM is not 512Mb aligned */
-
-#define ALIGN_512M_MASK (0xffffffffe0000000)
-#define ALIGNED_EFFECTIVE ((CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START) & ALIGN_512M_MASK)
-#define ALIGNED_PHYSICAL (CONFIG_MEMORY_START & ALIGN_512M_MASK)
-
-#define MMUIR_TEXT_H	(0x0000000000000003 | ALIGNED_EFFECTIVE)
-			/* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
-
-#define MMUIR_TEXT_L	(0x000000000000009a | ALIGNED_PHYSICAL)
-			/* 512 Mb, Cacheable, Write-back, execute, Not User, Ph. Add. */
-
-#define MMUDR_CACHED_H	0x0000000000000003 | ALIGNED_EFFECTIVE
-			/* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
-#define MMUDR_CACHED_L	0x000000000000015a | ALIGNED_PHYSICAL
-			/* 512 Mb, Cacheable, Write-back, read/write, Not User, Ph. Add. */
-
-#ifdef CONFIG_ICACHE_DISABLED
-#define	ICCR0_INIT_VAL	ICCR0_OFF			/* ICACHE off */
-#else
-#define	ICCR0_INIT_VAL	ICCR0_ON | ICCR0_ICI		/* ICE + ICI */
-#endif
-#define	ICCR1_INIT_VAL	ICCR1_NOLOCK			/* No locking */
-
-#if defined (CONFIG_DCACHE_DISABLED)
-#define	OCCR0_INIT_VAL	OCCR0_OFF			   /* D-cache: off  */
-#elif defined (CONFIG_DCACHE_WRITE_THROUGH)
-#define	OCCR0_INIT_VAL	OCCR0_ON | OCCR0_OCI | OCCR0_WT	   /* D-cache: on,   */
-							   /* WT, invalidate */
-#elif defined (CONFIG_DCACHE_WRITE_BACK)
-#define	OCCR0_INIT_VAL	OCCR0_ON | OCCR0_OCI | OCCR0_WB	   /* D-cache: on,   */
-							   /* WB, invalidate */
-#else
-#error preprocessor flag CONFIG_DCACHE_... not recognized!
-#endif
-
-#define	OCCR1_INIT_VAL	OCCR1_NOLOCK			   /* No locking     */
-
-	.section	.empty_zero_page, "aw"
-	.global empty_zero_page
-
-empty_zero_page:
-	.long	1		/* MOUNT_ROOT_RDONLY */
-	.long	0		/* RAMDISK_FLAGS */
-	.long	0x0200		/* ORIG_ROOT_DEV */
-	.long	1		/* LOADER_TYPE */
-	.long	0x00800000	/* INITRD_START */
-	.long	0x00800000	/* INITRD_SIZE */
-	.long	0
-
-	.text
-	.balign 4096,0,4096
-
-	.section	.data, "aw"
-	.balign	PAGE_SIZE
-
-	.section	.data, "aw"
-	.balign	PAGE_SIZE
-
-	.global swapper_pg_dir
-swapper_pg_dir:
-	.space PAGE_SIZE, 0
-
-	.global empty_bad_page
-empty_bad_page:
-	.space PAGE_SIZE, 0
-
-	.global empty_bad_pte_table
-empty_bad_pte_table:
-	.space PAGE_SIZE, 0
-
-	.global	fpu_in_use
-fpu_in_use:	.quad	0
-
-
-	.section	.text.head, "ax"
-	.balign L1_CACHE_BYTES
-/*
- * Condition at the entry of __stext:
- * . Reset state:
- *   . SR.FD    = 1		(FPU disabled)
- *   . SR.BL    = 1		(Exceptions disabled)
- *   . SR.MD    = 1		(Privileged Mode)
- *   . SR.MMU   = 0		(MMU Disabled)
- *   . SR.CD    = 0		(CTC User Visible)
- *   . SR.IMASK = Undefined	(Interrupt Mask)
- *
- * Operations supposed to be performed by __stext:
- * . prevent speculative fetch onto device memory while MMU is off
- * . reflect as much as possible SH5 ABI (r15, r26, r27, r18)
- * . first, save CPU state and set it to something harmless
- * . any CPU detection and/or endianness settings (?)
- * . initialize EMI/LMI (but not TMU/RTC/INTC/SCIF): TBD
- * . set initial TLB entries for cached and uncached regions
- *   (no fine granularity paging)
- * . set initial cache state
- * . enable MMU and caches
- * . set CPU to a consistent state
- *   . registers (including stack pointer and current/KCR0)
- *   . NOT expecting to set Exception handling nor VBR/RESVEC/DCR
- *     at this stage. This is all to later Linux initialization steps.
- *   . initialize FPU
- * . clear BSS
- * . jump into start_kernel()
- * . be prepared to hopeless start_kernel() returns.
- *
- */
-	.global _stext
-_stext:
-	/*
-	 * Prevent speculative fetch on device memory due to
-	 * uninitialized target registers.
-	 */
-	ptabs/u	ZERO, tr0
-	ptabs/u	ZERO, tr1
-	ptabs/u	ZERO, tr2
-	ptabs/u	ZERO, tr3
-	ptabs/u	ZERO, tr4
-	ptabs/u	ZERO, tr5
-	ptabs/u	ZERO, tr6
-	ptabs/u	ZERO, tr7
-	synci
-
-	/*
-	 * Read/Set CPU state. After this block:
-	 * r29 = Initial SR
-	 */
-	getcon	SR, r29
-	movi	SR_HARMLESS, r20
-	putcon	r20, SR
-
-	/*
-	 * Initialize EMI/LMI. To Be Done.
-	 */
-
-	/*
-	 * CPU detection and/or endianness settings (?). To Be Done.
-	 * Pure PIC code here, please ! Just save state into r30.
-         * After this block:
-	 * r30 = CPU type/Platform Endianness
-	 */
-
-	/*
-	 * Set initial TLB entries for cached and uncached regions.
-	 * Note: PTA/BLINK is PIC code, PTABS/BLINK isn't !
-	 */
-	/* Clear ITLBs */
-	pta	clear_ITLB, tr1
-	movi	MMUIR_FIRST, r21
-	movi	MMUIR_END, r22
-clear_ITLB:
-	putcfg	r21, 0, ZERO		/* Clear MMUIR[n].PTEH.V */
-	addi	r21, MMUIR_STEP, r21
-        bne	r21, r22, tr1
-
-	/* Clear DTLBs */
-	pta	clear_DTLB, tr1
-	movi	MMUDR_FIRST, r21
-	movi	MMUDR_END, r22
-clear_DTLB:
-	putcfg	r21, 0, ZERO		/* Clear MMUDR[n].PTEH.V */
-	addi	r21, MMUDR_STEP, r21
-        bne	r21, r22, tr1
-
-	/* Map one big (512Mb) page for ITLB */
-	movi	MMUIR_FIRST, r21
-	movi	MMUIR_TEXT_L, r22	/* PTEL first */
-	add.l	r22, r63, r22		/* Sign extend */
-	putcfg	r21, 1, r22		/* Set MMUIR[0].PTEL */
-	movi	MMUIR_TEXT_H, r22	/* PTEH last */
-	add.l	r22, r63, r22		/* Sign extend */
-	putcfg	r21, 0, r22		/* Set MMUIR[0].PTEH */
-
-	/* Map one big CACHED (512Mb) page for DTLB */
-	movi	MMUDR_FIRST, r21
-	movi	MMUDR_CACHED_L, r22	/* PTEL first */
-	add.l	r22, r63, r22		/* Sign extend */
-	putcfg	r21, 1, r22		/* Set MMUDR[0].PTEL */
-	movi	MMUDR_CACHED_H, r22	/* PTEH last */
-	add.l	r22, r63, r22		/* Sign extend */
-	putcfg	r21, 0, r22		/* Set MMUDR[0].PTEH */
-
-#ifdef CONFIG_EARLY_PRINTK
-	/*
-	 * Setup a DTLB translation for SCIF phys.
-	 */
-	addi    r21, MMUDR_STEP, r21
-	movi    0x0a03, r22	/* SCIF phys */
-	shori   0x0148, r22
-	putcfg  r21, 1, r22	/* PTEL first */
-	movi    0xfa03, r22	/* 0xfa030000, fixed SCIF virt */
-	shori   0x0003, r22
-	putcfg  r21, 0, r22	/* PTEH last */
-#endif
-
-	/*
-	 * Set cache behaviours.
-	 */
-	/* ICache */
-	movi	ICCR_BASE, r21
-	movi	ICCR0_INIT_VAL, r22
-	movi	ICCR1_INIT_VAL, r23
-	putcfg	r21, ICCR_REG0, r22
-	putcfg	r21, ICCR_REG1, r23
-
-	/* OCache */
-	movi	OCCR_BASE, r21
-	movi	OCCR0_INIT_VAL, r22
-	movi	OCCR1_INIT_VAL, r23
-	putcfg	r21, OCCR_REG0, r22
-	putcfg	r21, OCCR_REG1, r23
-
-
-	/*
-	 * Enable Caches and MMU. Do the first non-PIC jump.
-         * Now head.S global variables, constants and externs
-	 * can be used.
-	 */
-	getcon	SR, r21
-	movi	SR_ENABLE_MMU, r22
-	or	r21, r22, r21
-	putcon	r21, SSR
-	movi	hyperspace, r22
-	ori	r22, 1, r22	    /* Make it SHmedia, not required but..*/
-	putcon	r22, SPC
-	synco
-	rte			    /* And now go into the hyperspace ... */
-hyperspace:			    /* ... that's the next instruction !  */
-
-	/*
-	 * Set CPU to a consistent state.
-	 * r31 = FPU support flag
-	 * tr0/tr7 in use. Others give a chance to loop somewhere safe
-	 */
-	movi	start_kernel, r32
-	ori	r32, 1, r32
-
-	ptabs	r32, tr0		    /* r32 = _start_kernel address        */
-	pta/u	hopeless, tr1
-	pta/u	hopeless, tr2
-	pta/u	hopeless, tr3
-	pta/u	hopeless, tr4
-	pta/u	hopeless, tr5
-	pta/u	hopeless, tr6
-	pta/u	hopeless, tr7
-	gettr	tr1, r28			/* r28 = hopeless address */
-
-	/* Set initial stack pointer */
-	movi	init_thread_union, SP
-	putcon	SP, KCR0		/* Set current to init_task */
-	movi	THREAD_SIZE, r22	/* Point to the end */
-	add	SP, r22, SP
-
-	/*
-	 * Initialize FPU.
-	 * Keep FPU flag in r31. After this block:
-	 * r31 = FPU flag
-	 */
-	movi fpu_in_use, r31	/* Temporary */
-
-#ifdef CONFIG_SH_FPU
-	getcon	SR, r21
-	movi	SR_ENABLE_FPU, r22
-	and	r21, r22, r22
-	putcon	r22, SR			/* Try to enable */
-	getcon	SR, r22
-	xor	r21, r22, r21
-	shlri	r21, 15, r21		/* Supposedly 0/1 */
-	st.q	r31, 0 , r21		/* Set fpu_in_use */
-#else
-	movi	0, r21
-	st.q	r31, 0 , r21		/* Set fpu_in_use */
-#endif
-	or	r21, ZERO, r31		/* Set FPU flag at last */
-
-#ifndef CONFIG_SH_NO_BSS_INIT
-/* Don't clear BSS if running on slow platforms such as an RTL simulation,
-   remote memory via SHdebug link, etc.  For these the memory can be guaranteed
-   to be all zero on boot anyway. */
-	/*
-	 * Clear bss
-	 */
-	pta	clear_quad, tr1
-	movi	__bss_start, r22
-	movi	_end, r23
-clear_quad:
-	st.q	r22, 0, ZERO
-	addi	r22, 8, r22
-	bne	r22, r23, tr1		/* Both quad aligned, see vmlinux.lds.S */
-#endif
-	pta/u	hopeless, tr1
-
-	/* Say bye to head.S but be prepared to wrongly get back ... */
-	blink	tr0, LINK
-
-	/* If we ever get back here through LINK/tr1-tr7 */
-	pta/u	hopeless, tr7
-
-hopeless:
-	/*
-	 * Something's badly wrong here. Loop endlessly,
-         * there's nothing more we can do about it.
-	 *
-	 * Note on hopeless: it can be jumped into invariably
-	 * before or after jumping into hyperspace. The only
-	 * requirement is to be PIC called (PTA) before and
-	 * any way (PTA/PTABS) after. According to Virtual
-	 * to Physical mapping a simulator/emulator can easily
-	 * tell where we came here from just looking at hopeless
-	 * (PC) address.
-	 *
-	 * For debugging purposes:
-	 * (r28) hopeless/loop address
-	 * (r29) Original SR
-	 * (r30) CPU type/Platform endianness
-	 * (r31) FPU Support
-	 * (r32) _start_kernel address
-	 */
-	blink	tr7, ZERO
-
-
diff --git a/include/asm-sh/tlb.h b/include/asm-sh/tlb.h
index 53d185bcf872..56ad1fb888a2 100644
--- a/include/asm-sh/tlb.h
+++ b/include/asm-sh/tlb.h
@@ -1,6 +1,12 @@
 #ifndef __ASM_SH_TLB_H
 #define __ASM_SH_TLB_H
 
+#ifdef CONFIG_SUPERH64
+# include "tlb_64.h"
+#endif
+
+#ifndef __ASSEMBLY__
+
 #define tlb_start_vma(tlb, vma) \
 	flush_cache_range(vma, vma->vm_start, vma->vm_end)
 
@@ -15,4 +21,6 @@
 #define tlb_flush(tlb)				flush_tlb_mm((tlb)->mm)
 
 #include <asm-generic/tlb.h>
-#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_SH_TLB_H */
diff --git a/include/asm-sh/tlb_64.h b/include/asm-sh/tlb_64.h
new file mode 100644
index 000000000000..0308e05fc57b
--- /dev/null
+++ b/include/asm-sh/tlb_64.h
@@ -0,0 +1,69 @@
+/*
+ * include/asm-sh/tlb_64.h
+ *
+ * Copyright (C) 2003  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASM_SH_TLB_64_H
+#define __ASM_SH_TLB_64_H
+
+/* ITLB defines */
+#define ITLB_FIXED	0x00000000	/* First fixed ITLB, see head.S */
+#define ITLB_LAST_VAR_UNRESTRICTED	0x000003F0	/* Last ITLB */
+
+/* DTLB defines */
+#define DTLB_FIXED	0x00800000	/* First fixed DTLB, see head.S */
+#define DTLB_LAST_VAR_UNRESTRICTED	0x008003F0	/* Last DTLB */
+
+#ifndef __ASSEMBLY__
+
+/**
+ * for_each_dtlb_entry
+ *
+ * @tlb:	TLB entry
+ *
+ * Iterate over free (non-wired) DTLB entries
+ */
+#define for_each_dtlb_entry(tlb)		\
+	for (tlb  = cpu_data->dtlb.first;	\
+	     tlb <= cpu_data->dtlb.last;	\
+	     tlb += cpu_data->dtlb.step)
+
+/**
+ * for_each_itlb_entry
+ *
+ * @tlb:	TLB entry
+ *
+ * Iterate over free (non-wired) ITLB entries
+ */
+#define for_each_itlb_entry(tlb)		\
+	for (tlb  = cpu_data->itlb.first;	\
+	     tlb <= cpu_data->itlb.last;	\
+	     tlb += cpu_data->itlb.step)
+
+/**
+ * __flush_tlb_slot
+ *
+ * @slot:	Address of TLB slot.
+ *
+ * Flushes TLB slot @slot.
+ */
+static inline void __flush_tlb_slot(unsigned long long slot)
+{
+	__asm__ __volatile__ ("putcfg %0, 0, r63\n" : : "r" (slot));
+}
+
+/* arch/sh64/mm/tlb.c */
+int sh64_tlb_init(void);
+unsigned long long sh64_next_free_dtlb_entry(void);
+unsigned long long sh64_get_wired_dtlb_entry(void);
+int sh64_put_wired_dtlb_entry(unsigned long long entry);
+void sh64_setup_tlb_slot(unsigned long long config_addr, unsigned long eaddr,
+			 unsigned long asid, unsigned long paddr);
+void sh64_teardown_tlb_slot(unsigned long long config_addr);
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_SH_TLB_64_H */
diff --git a/include/asm-sh64/tlb.h b/include/asm-sh64/tlb.h
deleted file mode 100644
index 4979408bd88c..000000000000
--- a/include/asm-sh64/tlb.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * include/asm-sh64/tlb.h
- *
- * Copyright (C) 2003  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-#ifndef __ASM_SH64_TLB_H
-#define __ASM_SH64_TLB_H
-
-/*
- * Note! These are mostly unused, we just need the xTLB_LAST_VAR_UNRESTRICTED
- * for head.S! Once this limitation is gone, we can clean the rest of this up.
- */
-
-/* ITLB defines */
-#define ITLB_FIXED	0x00000000	/* First fixed ITLB, see head.S */
-#define ITLB_LAST_VAR_UNRESTRICTED	0x000003F0	/* Last ITLB */
-
-/* DTLB defines */
-#define DTLB_FIXED	0x00800000	/* First fixed DTLB, see head.S */
-#define DTLB_LAST_VAR_UNRESTRICTED	0x008003F0	/* Last DTLB */
-
-#ifndef __ASSEMBLY__
-
-/**
- * for_each_dtlb_entry
- *
- * @tlb:	TLB entry
- *
- * Iterate over free (non-wired) DTLB entries
- */
-#define for_each_dtlb_entry(tlb)		\
-	for (tlb  = cpu_data->dtlb.first;	\
-	     tlb <= cpu_data->dtlb.last;	\
-	     tlb += cpu_data->dtlb.step)
-
-/**
- * for_each_itlb_entry
- *
- * @tlb:	TLB entry
- *
- * Iterate over free (non-wired) ITLB entries
- */
-#define for_each_itlb_entry(tlb)		\
-	for (tlb  = cpu_data->itlb.first;	\
-	     tlb <= cpu_data->itlb.last;	\
-	     tlb += cpu_data->itlb.step)
-
-/**
- * __flush_tlb_slot
- *
- * @slot:	Address of TLB slot.
- *
- * Flushes TLB slot @slot.
- */
-static inline void __flush_tlb_slot(unsigned long long slot)
-{
-	__asm__ __volatile__ ("putcfg %0, 0, r63\n" : : "r" (slot));
-}
-
-/* arch/sh64/mm/tlb.c */
-extern int sh64_tlb_init(void);
-extern unsigned long long sh64_next_free_dtlb_entry(void);
-extern unsigned long long sh64_get_wired_dtlb_entry(void);
-extern int sh64_put_wired_dtlb_entry(unsigned long long entry);
-
-extern void sh64_setup_tlb_slot(unsigned long long config_addr, unsigned long eaddr, unsigned long asid, unsigned long paddr);
-extern void sh64_teardown_tlb_slot(unsigned long long config_addr);
-
-#define tlb_start_vma(tlb, vma) \
-	flush_cache_range(vma, vma->vm_start, vma->vm_end)
-
-#define tlb_end_vma(tlb, vma)	\
-	flush_tlb_range(vma, vma->vm_start, vma->vm_end)
-
-#define __tlb_remove_tlb_entry(tlb, pte, address)	do { } while (0)
-
-/*
- * Flush whole TLBs for MM
- */
-#define tlb_flush(tlb)		flush_tlb_mm((tlb)->mm)
-
-#include <asm-generic/tlb.h>
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* __ASM_SH64_TLB_H */
-
-- 
cgit v1.2.3-59-g8ed1b


From b613881ead41c8fc2e1413aeb6ef8f021f00c1e7 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 15:53:51 +0900
Subject: sh: flush_cache_sigtramp() takes 1 arg only.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/signal_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c
index 96ba81f324be..069fb6083646 100644
--- a/arch/sh/kernel/signal_64.c
+++ b/arch/sh/kernel/signal_64.c
@@ -481,7 +481,7 @@ static void setup_frame(int sig, struct k_sigaction *ka,
 			goto give_sigsegv;
 
 		/* Cohere the trampoline with the I-cache. */
-		flush_cache_sigtramp(DEREF_REG_PR-1, DEREF_REG_PR-1+16);
+		flush_cache_sigtramp(DEREF_REG_PR-1);
 	}
 
 	/*
-- 
cgit v1.2.3-59-g8ed1b


From 8a7bcf0dd0d49fe8b0071adef0dfe8610abdffaa Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 17:07:06 +0900
Subject: sh: Add SH-5 support to the consistent DMA impl.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/consistent.c      | 46 +++++++++++++++++++++++++++-----------------
 include/asm-sh/dma-mapping.h |  4 ++--
 2 files changed, 30 insertions(+), 20 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index e220c29a3c00..65ad30031ad7 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -1,7 +1,7 @@
 /*
  * arch/sh/mm/consistent.c
  *
- * Copyright (C) 2004  Paul Mundt
+ * Copyright (C) 2004 - 2007  Paul Mundt
  *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
@@ -16,7 +16,7 @@
 void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle)
 {
 	struct page *page, *end, *free;
-	void *ret;
+	void *ret, *vp;
 	int order;
 
 	size = PAGE_ALIGN(size);
@@ -28,13 +28,20 @@ void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle)
 	split_page(page, order);
 
 	ret = page_address(page);
-	memset(ret, 0, size);
 	*handle = virt_to_phys(ret);
 
+	vp = ioremap_nocache(*handle, size);
+	if (!vp) {
+		free_pages((unsigned long)ret, order);
+		return NULL;
+	}
+
+	memset(vp, 0, size);
+
 	/*
 	 * We must flush the cache before we pass it on to the device
 	 */
-	__flush_purge_region(ret, size);
+	dma_cache_sync(NULL, ret, size, DMA_BIDIRECTIONAL);
 
 	page = virt_to_page(ret);
 	free = page + (size >> PAGE_SHIFT);
@@ -47,24 +54,31 @@ void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle)
 		}
 	}
 
-	return P2SEGADDR(ret);
+	return vp;
 }
+EXPORT_SYMBOL(consistent_alloc);
 
-void consistent_free(void *vaddr, size_t size)
+void consistent_free(void *vaddr, size_t size, dma_addr_t dma_handle)
 {
-	unsigned long addr = P1SEGADDR((unsigned long)vaddr);
-	struct page *page=virt_to_page(addr);
-	int num_pages=(size+PAGE_SIZE-1) >> PAGE_SHIFT;
-	int i;
+	struct page *page;
+	unsigned long addr;
 
-	for(i=0;i<num_pages;i++) {
-		__free_page((page+i));
-	}
+	addr = (unsigned long)phys_to_virt((unsigned long)dma_handle);
+	page = virt_to_page(addr);
+
+	free_pages(addr, get_order(size));
+
+	iounmap(vaddr);
 }
+EXPORT_SYMBOL(consistent_free);
 
 void consistent_sync(void *vaddr, size_t size, int direction)
 {
-	void * p1addr = (void*) P1SEGADDR((unsigned long)vaddr);
+#ifdef CONFIG_CPU_SH5
+	void *p1addr = vaddr;
+#else
+	void *p1addr = (void*) P1SEGADDR((unsigned long)vaddr);
+#endif
 
 	switch (direction) {
 	case DMA_FROM_DEVICE:		/* invalidate only */
@@ -80,8 +94,4 @@ void consistent_sync(void *vaddr, size_t size, int direction)
 		BUG();
 	}
 }
-
-EXPORT_SYMBOL(consistent_alloc);
-EXPORT_SYMBOL(consistent_free);
 EXPORT_SYMBOL(consistent_sync);
-
diff --git a/include/asm-sh/dma-mapping.h b/include/asm-sh/dma-mapping.h
index fcea067f7a9c..20ae762e5258 100644
--- a/include/asm-sh/dma-mapping.h
+++ b/include/asm-sh/dma-mapping.h
@@ -10,7 +10,7 @@ extern struct bus_type pci_bus_type;
 
 /* arch/sh/mm/consistent.c */
 extern void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle);
-extern void consistent_free(void *vaddr, size_t size);
+extern void consistent_free(void *vaddr, size_t size, dma_addr_t handle);
 extern void consistent_sync(void *vaddr, size_t size, int direction);
 
 #define dma_supported(dev, mask)	(1)
@@ -50,7 +50,7 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
 			return;
 	}
 
-	consistent_free(vaddr, size);
+	consistent_free(vaddr, size, dma_handle);
 }
 
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-- 
cgit v1.2.3-59-g8ed1b


From 83ce3ac1d13f9a3ae83485a5e5a1cb85faf865ff Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 17:24:50 +0900
Subject: sh: Split out extable.c _32 and _64 variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/Makefile     | 40 +++----------------------
 arch/sh/mm/Makefile_32  | 37 +++++++++++++++++++++++
 arch/sh/mm/Makefile_64  | 11 +++++++
 arch/sh/mm/extable.c    | 21 -------------
 arch/sh/mm/extable_32.c | 21 +++++++++++++
 arch/sh/mm/extable_64.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++
 arch/sh64/mm/extable.c  | 80 -------------------------------------------------
 7 files changed, 153 insertions(+), 137 deletions(-)
 create mode 100644 arch/sh/mm/Makefile_32
 create mode 100644 arch/sh/mm/Makefile_64
 delete mode 100644 arch/sh/mm/extable.c
 create mode 100644 arch/sh/mm/extable_32.c
 create mode 100644 arch/sh/mm/extable_64.c
 delete mode 100644 arch/sh64/mm/extable.c

(limited to 'arch')

diff --git a/arch/sh/mm/Makefile b/arch/sh/mm/Makefile
index d35caccd0aaa..9f4bc3d90b1e 100644
--- a/arch/sh/mm/Makefile
+++ b/arch/sh/mm/Makefile
@@ -1,37 +1,5 @@
-#
-# Makefile for the Linux SuperH-specific parts of the memory manager.
-#
-
-obj-y			:= init.o extable.o consistent.o
-
-ifndef CONFIG_CACHE_OFF
-obj-$(CONFIG_CPU_SH2)		+= cache-sh2.o
-obj-$(CONFIG_CPU_SH3)		+= cache-sh3.o
-obj-$(CONFIG_CPU_SH4)		+= cache-sh4.o
-obj-$(CONFIG_SH7705_CACHE_32KB)	+= cache-sh7705.o
+ifeq ($(CONFIG_SUPERH32),y)
+include ${srctree}/arch/sh/mm/Makefile_32
+else
+include ${srctree}/arch/sh/mm/Makefile_64
 endif
-
-mmu-y			:= tlb-nommu.o pg-nommu.o
-mmu-$(CONFIG_MMU)	:= fault.o clear_page.o copy_page.o tlb-flush.o	\
-			   ioremap.o
-
-obj-y			+= $(mmu-y)
-
-ifdef CONFIG_DEBUG_FS
-obj-$(CONFIG_CPU_SH4)	+= cache-debugfs.o
-endif
-
-ifdef CONFIG_MMU
-obj-$(CONFIG_CPU_SH3)	+= tlb-sh3.o
-obj-$(CONFIG_CPU_SH4)	+= tlb-sh4.o
-ifndef CONFIG_CACHE_OFF
-obj-$(CONFIG_CPU_SH4)		+= pg-sh4.o
-obj-$(CONFIG_SH7705_CACHE_32KB)	+= pg-sh7705.o
-endif
-endif
-
-obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o
-obj-$(CONFIG_PMB)		+= pmb.o
-obj-$(CONFIG_NUMA)		+= numa.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/sh/mm/Makefile_32 b/arch/sh/mm/Makefile_32
new file mode 100644
index 000000000000..cc68b265c025
--- /dev/null
+++ b/arch/sh/mm/Makefile_32
@@ -0,0 +1,37 @@
+#
+# Makefile for the Linux SuperH-specific parts of the memory manager.
+#
+
+obj-y			:= init.o extable_32.o consistent.o
+
+ifndef CONFIG_CACHE_OFF
+obj-$(CONFIG_CPU_SH2)		+= cache-sh2.o
+obj-$(CONFIG_CPU_SH3)		+= cache-sh3.o
+obj-$(CONFIG_CPU_SH4)		+= cache-sh4.o
+obj-$(CONFIG_SH7705_CACHE_32KB)	+= cache-sh7705.o
+endif
+
+mmu-y			:= tlb-nommu.o pg-nommu.o
+mmu-$(CONFIG_MMU)	:= fault.o clear_page.o copy_page.o tlb-flush.o	\
+			   ioremap.o
+
+obj-y			+= $(mmu-y)
+
+ifdef CONFIG_DEBUG_FS
+obj-$(CONFIG_CPU_SH4)	+= cache-debugfs.o
+endif
+
+ifdef CONFIG_MMU
+obj-$(CONFIG_CPU_SH3)	+= tlb-sh3.o
+obj-$(CONFIG_CPU_SH4)	+= tlb-sh4.o
+ifndef CONFIG_CACHE_OFF
+obj-$(CONFIG_CPU_SH4)		+= pg-sh4.o
+obj-$(CONFIG_SH7705_CACHE_32KB)	+= pg-sh7705.o
+endif
+endif
+
+obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o
+obj-$(CONFIG_PMB)		+= pmb.o
+obj-$(CONFIG_NUMA)		+= numa.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/sh/mm/Makefile_64 b/arch/sh/mm/Makefile_64
new file mode 100644
index 000000000000..de964a1500f4
--- /dev/null
+++ b/arch/sh/mm/Makefile_64
@@ -0,0 +1,11 @@
+#
+# Makefile for the Linux SuperH-specific parts of the memory manager.
+#
+
+obj-y			:= init.o extable_64.o consistent.o
+
+obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o
+obj-$(CONFIG_PMB)		+= pmb.o
+obj-$(CONFIG_NUMA)		+= numa.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/sh/mm/extable.c b/arch/sh/mm/extable.c
deleted file mode 100644
index c1cf4463d09d..000000000000
--- a/arch/sh/mm/extable.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * linux/arch/sh/mm/extable.c
- *  Taken from:
- *   linux/arch/i386/mm/extable.c
- */
-
-#include <linux/module.h>
-#include <asm/uaccess.h>
-
-int fixup_exception(struct pt_regs *regs)
-{
-	const struct exception_table_entry *fixup;
-
-	fixup = search_exception_tables(regs->pc);
-	if (fixup) {
-		regs->pc = fixup->fixup;
-		return 1;
-	}
-
-	return 0;
-}
diff --git a/arch/sh/mm/extable_32.c b/arch/sh/mm/extable_32.c
new file mode 100644
index 000000000000..c1cf4463d09d
--- /dev/null
+++ b/arch/sh/mm/extable_32.c
@@ -0,0 +1,21 @@
+/*
+ * linux/arch/sh/mm/extable.c
+ *  Taken from:
+ *   linux/arch/i386/mm/extable.c
+ */
+
+#include <linux/module.h>
+#include <asm/uaccess.h>
+
+int fixup_exception(struct pt_regs *regs)
+{
+	const struct exception_table_entry *fixup;
+
+	fixup = search_exception_tables(regs->pc);
+	if (fixup) {
+		regs->pc = fixup->fixup;
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/arch/sh/mm/extable_64.c b/arch/sh/mm/extable_64.c
new file mode 100644
index 000000000000..a2e6e0563772
--- /dev/null
+++ b/arch/sh/mm/extable_64.c
@@ -0,0 +1,80 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/mm/extable.c
+ *
+ * Copyright (C) 2003 Richard Curnow
+ * Copyright (C) 2003, 2004  Paul Mundt
+ *
+ * Cloned from the 2.5 SH version..
+ */
+#include <linux/rwsem.h>
+#include <linux/module.h>
+#include <asm/uaccess.h>
+
+extern unsigned long copy_user_memcpy, copy_user_memcpy_end;
+extern void __copy_user_fixup(void);
+
+static const struct exception_table_entry __copy_user_fixup_ex = {
+	.fixup = (unsigned long)&__copy_user_fixup,
+};
+
+/* Some functions that may trap due to a bad user-mode address have too many loads
+   and stores in them to make it at all practical to label each one and put them all in
+   the main exception table.
+
+   In particular, the fast memcpy routine is like this.  It's fix-up is just to fall back
+   to a slow byte-at-a-time copy, which is handled the conventional way.  So it's functionally
+   OK to just handle any trap occurring in the fast memcpy with that fixup. */
+static const struct exception_table_entry *check_exception_ranges(unsigned long addr)
+{
+	if ((addr >= (unsigned long)&copy_user_memcpy) &&
+	    (addr <= (unsigned long)&copy_user_memcpy_end))
+		return &__copy_user_fixup_ex;
+
+	return NULL;
+}
+
+/* Simple binary search */
+const struct exception_table_entry *
+search_extable(const struct exception_table_entry *first,
+		 const struct exception_table_entry *last,
+		 unsigned long value)
+{
+	const struct exception_table_entry *mid;
+
+	mid = check_exception_ranges(value);
+	if (mid)
+		return mid;
+
+        while (first <= last) {
+		long diff;
+
+		mid = (last - first) / 2 + first;
+		diff = mid->insn - value;
+                if (diff == 0)
+                        return mid;
+                else if (diff < 0)
+                        first = mid+1;
+                else
+                        last = mid-1;
+        }
+
+        return NULL;
+}
+
+int fixup_exception(struct pt_regs *regs)
+{
+	const struct exception_table_entry *fixup;
+
+	fixup = search_exception_tables(regs->pc);
+	if (fixup) {
+		regs->pc = fixup->fixup;
+		return 1;
+	}
+
+	return 0;
+}
+
diff --git a/arch/sh64/mm/extable.c b/arch/sh64/mm/extable.c
deleted file mode 100644
index a2e6e0563772..000000000000
--- a/arch/sh64/mm/extable.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/extable.c
- *
- * Copyright (C) 2003 Richard Curnow
- * Copyright (C) 2003, 2004  Paul Mundt
- *
- * Cloned from the 2.5 SH version..
- */
-#include <linux/rwsem.h>
-#include <linux/module.h>
-#include <asm/uaccess.h>
-
-extern unsigned long copy_user_memcpy, copy_user_memcpy_end;
-extern void __copy_user_fixup(void);
-
-static const struct exception_table_entry __copy_user_fixup_ex = {
-	.fixup = (unsigned long)&__copy_user_fixup,
-};
-
-/* Some functions that may trap due to a bad user-mode address have too many loads
-   and stores in them to make it at all practical to label each one and put them all in
-   the main exception table.
-
-   In particular, the fast memcpy routine is like this.  It's fix-up is just to fall back
-   to a slow byte-at-a-time copy, which is handled the conventional way.  So it's functionally
-   OK to just handle any trap occurring in the fast memcpy with that fixup. */
-static const struct exception_table_entry *check_exception_ranges(unsigned long addr)
-{
-	if ((addr >= (unsigned long)&copy_user_memcpy) &&
-	    (addr <= (unsigned long)&copy_user_memcpy_end))
-		return &__copy_user_fixup_ex;
-
-	return NULL;
-}
-
-/* Simple binary search */
-const struct exception_table_entry *
-search_extable(const struct exception_table_entry *first,
-		 const struct exception_table_entry *last,
-		 unsigned long value)
-{
-	const struct exception_table_entry *mid;
-
-	mid = check_exception_ranges(value);
-	if (mid)
-		return mid;
-
-        while (first <= last) {
-		long diff;
-
-		mid = (last - first) / 2 + first;
-		diff = mid->insn - value;
-                if (diff == 0)
-                        return mid;
-                else if (diff < 0)
-                        first = mid+1;
-                else
-                        last = mid-1;
-        }
-
-        return NULL;
-}
-
-int fixup_exception(struct pt_regs *regs)
-{
-	const struct exception_table_entry *fixup;
-
-	fixup = search_exception_tables(regs->pc);
-	if (fixup) {
-		regs->pc = fixup->fixup;
-		return 1;
-	}
-
-	return 0;
-}
-
-- 
cgit v1.2.3-59-g8ed1b


From 079060c6ff6edd32955c3e511024578db89a717b Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 17:25:10 +0900
Subject: sh: Fix up 64kB page size selection on SH-5.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 8192c872a69a..7ff26c1f4e9c 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -156,7 +156,7 @@ config PAGE_SIZE_8KB
 
 config PAGE_SIZE_64KB
 	bool "64kB"
-	depends on CPU_SH4
+	depends on CPU_SH4 || CPU_SH5
 	help
 	  This enables support for 64kB pages, possible on all SH-4
 	  CPUs and later.
@@ -165,7 +165,7 @@ endchoice
 
 choice
 	prompt "HugeTLB page size"
-	depends on HUGETLB_PAGE && CPU_SH4 && MMU
+	depends on HUGETLB_PAGE && (CPU_SH4 || CPU_SH5) && MMU
 	default HUGETLB_PAGE_SIZE_64K
 
 config HUGETLB_PAGE_SIZE_64K
-- 
cgit v1.2.3-59-g8ed1b


From fcfdd0f14f94d47f2f650a24cd111e11475ccada Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 17:36:13 +0900
Subject: sh: Split out checksum.h in to _32 and _64 variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/sh_ksyms.c    |   2 +
 include/asm-sh/checksum.h    | 216 +------------------------------------------
 include/asm-sh/checksum_32.h | 215 ++++++++++++++++++++++++++++++++++++++++++
 include/asm-sh/checksum_64.h |  80 ++++++++++++++++
 include/asm-sh64/checksum.h  |  82 ----------------
 5 files changed, 300 insertions(+), 295 deletions(-)
 create mode 100644 include/asm-sh/checksum_32.h
 create mode 100644 include/asm-sh/checksum_64.h
 delete mode 100644 include/asm-sh64/checksum.h

(limited to 'arch')

diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c
index e1a6de9088b5..bc5239ef88ce 100644
--- a/arch/sh/kernel/sh_ksyms.c
+++ b/arch/sh/kernel/sh_ksyms.c
@@ -141,7 +141,9 @@ EXPORT_SYMBOL(clear_user_page);
 #endif
 
 EXPORT_SYMBOL(csum_partial);
+#ifdef CONFIG_SUPERH32
 EXPORT_SYMBOL(csum_partial_copy_generic);
+#endif
 #ifdef CONFIG_IPV6
 EXPORT_SYMBOL(csum_ipv6_magic);
 #endif
diff --git a/include/asm-sh/checksum.h b/include/asm-sh/checksum.h
index 4bc8357e8892..67496ab0ef04 100644
--- a/include/asm-sh/checksum.h
+++ b/include/asm-sh/checksum.h
@@ -1,215 +1,5 @@
-#ifndef __ASM_SH_CHECKSUM_H
-#define __ASM_SH_CHECKSUM_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1999 by Kaz Kojima & Niibe Yutaka
- */
-
-#include <linux/in6.h>
-
-/*
- * computes the checksum of a memory block at buff, length len,
- * and adds in "sum" (32-bit)
- *
- * returns a 32-bit number suitable for feeding into itself
- * or csum_tcpudp_magic
- *
- * this function must be called with even lengths, except
- * for the last fragment, which may be odd
- *
- * it's best to have buff aligned on a 32-bit boundary
- */
-asmlinkage __wsum csum_partial(const void *buff, int len, __wsum sum);
-
-/*
- * the same as csum_partial, but copies from src while it
- * checksums, and handles user-space pointer exceptions correctly, when needed.
- *
- * here even more important to align src and dst on a 32-bit (or even
- * better 64-bit) boundary
- */
-
-asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
-					    int len, __wsum sum,
-					    int *src_err_ptr, int *dst_err_ptr);
-
-/*
- *	Note: when you get a NULL pointer exception here this means someone
- *	passed in an incorrect kernel address to one of these functions.
- *
- *	If you use these functions directly please don't forget the
- *	access_ok().
- */
-static inline
-__wsum csum_partial_copy_nocheck(const void *src, void *dst,
-				 int len, __wsum sum)
-{
-	return csum_partial_copy_generic(src, dst, len, sum, NULL, NULL);
-}
-
-static inline
-__wsum csum_partial_copy_from_user(const void __user *src, void *dst,
-				   int len, __wsum sum, int *err_ptr)
-{
-	return csum_partial_copy_generic((__force const void *)src, dst,
-					len, sum, err_ptr, NULL);
-}
-
-/*
- *	Fold a partial checksum
- */
-
-static inline __sum16 csum_fold(__wsum sum)
-{
-	unsigned int __dummy;
-	__asm__("swap.w %0, %1\n\t"
-		"extu.w	%0, %0\n\t"
-		"extu.w	%1, %1\n\t"
-		"add	%1, %0\n\t"
-		"swap.w	%0, %1\n\t"
-		"add	%1, %0\n\t"
-		"not	%0, %0\n\t"
-		: "=r" (sum), "=&r" (__dummy)
-		: "0" (sum)
-		: "t");
-	return (__force __sum16)sum;
-}
-
-/*
- *	This is a version of ip_compute_csum() optimized for IP headers,
- *	which always checksum on 4 octet boundaries.
- *
- *      i386 version by Jorge Cwik <jorge@laser.satlink.net>, adapted
- *      for linux by * Arnt Gulbrandsen.
- */
-static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
-{
-	unsigned int sum, __dummy0, __dummy1;
-
-	__asm__ __volatile__(
-		"mov.l	@%1+, %0\n\t"
-		"mov.l	@%1+, %3\n\t"
-		"add	#-2, %2\n\t"
-		"clrt\n\t"
-		"1:\t"
-		"addc	%3, %0\n\t"
-		"movt	%4\n\t"
-		"mov.l	@%1+, %3\n\t"
-		"dt	%2\n\t"
-		"bf/s	1b\n\t"
-		" cmp/eq #1, %4\n\t"
-		"addc	%3, %0\n\t"
-		"addc	%2, %0"	    /* Here %2 is 0, add carry-bit */
-	/* Since the input registers which are loaded with iph and ihl
-	   are modified, we must also specify them as outputs, or gcc
-	   will assume they contain their original values. */
-	: "=r" (sum), "=r" (iph), "=r" (ihl), "=&r" (__dummy0), "=&z" (__dummy1)
-	: "1" (iph), "2" (ihl)
-	: "t");
-
-	return	csum_fold(sum);
-}
-
-static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
-					unsigned short len,
-					unsigned short proto,
-					__wsum sum)
-{
-#ifdef __LITTLE_ENDIAN__
-	unsigned long len_proto = (proto + len) << 8;
+#ifdef CONFIG_SUPERH32
+# include "checksum_32.h"
 #else
-	unsigned long len_proto = proto + len;
+# include "checksum_64.h"
 #endif
-	__asm__("clrt\n\t"
-		"addc	%0, %1\n\t"
-		"addc	%2, %1\n\t"
-		"addc	%3, %1\n\t"
-		"movt	%0\n\t"
-		"add	%1, %0"
-		: "=r" (sum), "=r" (len_proto)
-		: "r" (daddr), "r" (saddr), "1" (len_proto), "0" (sum)
-		: "t");
-
-	return sum;
-}
-
-/*
- * computes the checksum of the TCP/UDP pseudo-header
- * returns a 16-bit checksum, already complemented
- */
-static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
-					unsigned short len,
-					unsigned short proto,
-					__wsum sum)
-{
-	return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
-}
-
-/*
- * this routine is used for miscellaneous IP-like checksums, mainly
- * in icmp.c
- */
-static inline __sum16 ip_compute_csum(const void *buff, int len)
-{
-    return csum_fold(csum_partial(buff, len, 0));
-}
-
-#define _HAVE_ARCH_IPV6_CSUM
-static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
-				      const struct in6_addr *daddr,
-				      __u32 len, unsigned short proto,
-				      __wsum sum)
-{
-	unsigned int __dummy;
-	__asm__("clrt\n\t"
-		"mov.l	@(0,%2), %1\n\t"
-		"addc	%1, %0\n\t"
-		"mov.l	@(4,%2), %1\n\t"
-		"addc	%1, %0\n\t"
-		"mov.l	@(8,%2), %1\n\t"
-		"addc	%1, %0\n\t"
-		"mov.l	@(12,%2), %1\n\t"
-		"addc	%1, %0\n\t"
-		"mov.l	@(0,%3), %1\n\t"
-		"addc	%1, %0\n\t"
-		"mov.l	@(4,%3), %1\n\t"
-		"addc	%1, %0\n\t"
-		"mov.l	@(8,%3), %1\n\t"
-		"addc	%1, %0\n\t"
-		"mov.l	@(12,%3), %1\n\t"
-		"addc	%1, %0\n\t"
-		"addc	%4, %0\n\t"
-		"addc	%5, %0\n\t"
-		"movt	%1\n\t"
-		"add	%1, %0\n"
-		: "=r" (sum), "=&r" (__dummy)
-		: "r" (saddr), "r" (daddr),
-		  "r" (htonl(len)), "r" (htonl(proto)), "0" (sum)
-		: "t");
-
-	return csum_fold(sum);
-}
-
-/*
- *	Copy and checksum to user
- */
-#define HAVE_CSUM_COPY_USER
-static inline __wsum csum_and_copy_to_user(const void *src,
-					   void __user *dst,
-					   int len, __wsum sum,
-					   int *err_ptr)
-{
-	if (access_ok(VERIFY_WRITE, dst, len))
-		return csum_partial_copy_generic((__force const void *)src,
-						dst, len, sum, NULL, err_ptr);
-
-	if (len)
-		*err_ptr = -EFAULT;
-
-	return (__force __wsum)-1; /* invalid checksum */
-}
-#endif /* __ASM_SH_CHECKSUM_H */
diff --git a/include/asm-sh/checksum_32.h b/include/asm-sh/checksum_32.h
new file mode 100644
index 000000000000..4bc8357e8892
--- /dev/null
+++ b/include/asm-sh/checksum_32.h
@@ -0,0 +1,215 @@
+#ifndef __ASM_SH_CHECKSUM_H
+#define __ASM_SH_CHECKSUM_H
+
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1999 by Kaz Kojima & Niibe Yutaka
+ */
+
+#include <linux/in6.h>
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+asmlinkage __wsum csum_partial(const void *buff, int len, __wsum sum);
+
+/*
+ * the same as csum_partial, but copies from src while it
+ * checksums, and handles user-space pointer exceptions correctly, when needed.
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+
+asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
+					    int len, __wsum sum,
+					    int *src_err_ptr, int *dst_err_ptr);
+
+/*
+ *	Note: when you get a NULL pointer exception here this means someone
+ *	passed in an incorrect kernel address to one of these functions.
+ *
+ *	If you use these functions directly please don't forget the
+ *	access_ok().
+ */
+static inline
+__wsum csum_partial_copy_nocheck(const void *src, void *dst,
+				 int len, __wsum sum)
+{
+	return csum_partial_copy_generic(src, dst, len, sum, NULL, NULL);
+}
+
+static inline
+__wsum csum_partial_copy_from_user(const void __user *src, void *dst,
+				   int len, __wsum sum, int *err_ptr)
+{
+	return csum_partial_copy_generic((__force const void *)src, dst,
+					len, sum, err_ptr, NULL);
+}
+
+/*
+ *	Fold a partial checksum
+ */
+
+static inline __sum16 csum_fold(__wsum sum)
+{
+	unsigned int __dummy;
+	__asm__("swap.w %0, %1\n\t"
+		"extu.w	%0, %0\n\t"
+		"extu.w	%1, %1\n\t"
+		"add	%1, %0\n\t"
+		"swap.w	%0, %1\n\t"
+		"add	%1, %0\n\t"
+		"not	%0, %0\n\t"
+		: "=r" (sum), "=&r" (__dummy)
+		: "0" (sum)
+		: "t");
+	return (__force __sum16)sum;
+}
+
+/*
+ *	This is a version of ip_compute_csum() optimized for IP headers,
+ *	which always checksum on 4 octet boundaries.
+ *
+ *      i386 version by Jorge Cwik <jorge@laser.satlink.net>, adapted
+ *      for linux by * Arnt Gulbrandsen.
+ */
+static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
+{
+	unsigned int sum, __dummy0, __dummy1;
+
+	__asm__ __volatile__(
+		"mov.l	@%1+, %0\n\t"
+		"mov.l	@%1+, %3\n\t"
+		"add	#-2, %2\n\t"
+		"clrt\n\t"
+		"1:\t"
+		"addc	%3, %0\n\t"
+		"movt	%4\n\t"
+		"mov.l	@%1+, %3\n\t"
+		"dt	%2\n\t"
+		"bf/s	1b\n\t"
+		" cmp/eq #1, %4\n\t"
+		"addc	%3, %0\n\t"
+		"addc	%2, %0"	    /* Here %2 is 0, add carry-bit */
+	/* Since the input registers which are loaded with iph and ihl
+	   are modified, we must also specify them as outputs, or gcc
+	   will assume they contain their original values. */
+	: "=r" (sum), "=r" (iph), "=r" (ihl), "=&r" (__dummy0), "=&z" (__dummy1)
+	: "1" (iph), "2" (ihl)
+	: "t");
+
+	return	csum_fold(sum);
+}
+
+static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
+					unsigned short len,
+					unsigned short proto,
+					__wsum sum)
+{
+#ifdef __LITTLE_ENDIAN__
+	unsigned long len_proto = (proto + len) << 8;
+#else
+	unsigned long len_proto = proto + len;
+#endif
+	__asm__("clrt\n\t"
+		"addc	%0, %1\n\t"
+		"addc	%2, %1\n\t"
+		"addc	%3, %1\n\t"
+		"movt	%0\n\t"
+		"add	%1, %0"
+		: "=r" (sum), "=r" (len_proto)
+		: "r" (daddr), "r" (saddr), "1" (len_proto), "0" (sum)
+		: "t");
+
+	return sum;
+}
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+					unsigned short len,
+					unsigned short proto,
+					__wsum sum)
+{
+	return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
+}
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+static inline __sum16 ip_compute_csum(const void *buff, int len)
+{
+    return csum_fold(csum_partial(buff, len, 0));
+}
+
+#define _HAVE_ARCH_IPV6_CSUM
+static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
+				      const struct in6_addr *daddr,
+				      __u32 len, unsigned short proto,
+				      __wsum sum)
+{
+	unsigned int __dummy;
+	__asm__("clrt\n\t"
+		"mov.l	@(0,%2), %1\n\t"
+		"addc	%1, %0\n\t"
+		"mov.l	@(4,%2), %1\n\t"
+		"addc	%1, %0\n\t"
+		"mov.l	@(8,%2), %1\n\t"
+		"addc	%1, %0\n\t"
+		"mov.l	@(12,%2), %1\n\t"
+		"addc	%1, %0\n\t"
+		"mov.l	@(0,%3), %1\n\t"
+		"addc	%1, %0\n\t"
+		"mov.l	@(4,%3), %1\n\t"
+		"addc	%1, %0\n\t"
+		"mov.l	@(8,%3), %1\n\t"
+		"addc	%1, %0\n\t"
+		"mov.l	@(12,%3), %1\n\t"
+		"addc	%1, %0\n\t"
+		"addc	%4, %0\n\t"
+		"addc	%5, %0\n\t"
+		"movt	%1\n\t"
+		"add	%1, %0\n"
+		: "=r" (sum), "=&r" (__dummy)
+		: "r" (saddr), "r" (daddr),
+		  "r" (htonl(len)), "r" (htonl(proto)), "0" (sum)
+		: "t");
+
+	return csum_fold(sum);
+}
+
+/*
+ *	Copy and checksum to user
+ */
+#define HAVE_CSUM_COPY_USER
+static inline __wsum csum_and_copy_to_user(const void *src,
+					   void __user *dst,
+					   int len, __wsum sum,
+					   int *err_ptr)
+{
+	if (access_ok(VERIFY_WRITE, dst, len))
+		return csum_partial_copy_generic((__force const void *)src,
+						dst, len, sum, NULL, err_ptr);
+
+	if (len)
+		*err_ptr = -EFAULT;
+
+	return (__force __wsum)-1; /* invalid checksum */
+}
+#endif /* __ASM_SH_CHECKSUM_H */
diff --git a/include/asm-sh/checksum_64.h b/include/asm-sh/checksum_64.h
new file mode 100644
index 000000000000..ec79b92e6bdc
--- /dev/null
+++ b/include/asm-sh/checksum_64.h
@@ -0,0 +1,80 @@
+#ifndef __ASM_SH64_CHECKSUM_H
+#define __ASM_SH64_CHECKSUM_H
+
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * include/asm-sh64/checksum.h
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ */
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+asmlinkage __wsum csum_partial(const void *buff, int len, __wsum sum);
+
+/*
+ *	Note: when you get a NULL pointer exception here this means someone
+ *	passed in an incorrect kernel address to one of these functions.
+ *
+ *	If you use these functions directly please don't forget the
+ *	access_ok().
+ */
+
+
+__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len,
+				       __wsum sum);
+
+__wsum csum_partial_copy_from_user(const void __user *src, void *dst,
+					 int len, __wsum sum, int *err_ptr);
+
+static inline __sum16 csum_fold(__wsum csum)
+{
+	u32 sum = (__force u32)csum;
+        sum = (sum & 0xffff) + (sum >> 16);
+        sum = (sum & 0xffff) + (sum >> 16);
+        return (__force __sum16)~sum;
+}
+
+__sum16 ip_fast_csum(const void *iph, unsigned int ihl);
+
+__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
+				 unsigned short len, unsigned short proto,
+				 __wsum sum);
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+						   unsigned short len,
+						   unsigned short proto,
+						   __wsum sum)
+{
+	return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
+}
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+static inline __sum16 ip_compute_csum(const void *buff, int len)
+{
+	return csum_fold(csum_partial(buff, len, 0));
+}
+
+#endif /* __ASM_SH64_CHECKSUM_H */
+
diff --git a/include/asm-sh64/checksum.h b/include/asm-sh64/checksum.h
deleted file mode 100644
index ba594ccb42e5..000000000000
--- a/include/asm-sh64/checksum.h
+++ /dev/null
@@ -1,82 +0,0 @@
-#ifndef __ASM_SH64_CHECKSUM_H
-#define __ASM_SH64_CHECKSUM_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/checksum.h
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- *
- */
-
-#include <asm/registers.h>
-
-/*
- * computes the checksum of a memory block at buff, length len,
- * and adds in "sum" (32-bit)
- *
- * returns a 32-bit number suitable for feeding into itself
- * or csum_tcpudp_magic
- *
- * this function must be called with even lengths, except
- * for the last fragment, which may be odd
- *
- * it's best to have buff aligned on a 32-bit boundary
- */
-asmlinkage __wsum csum_partial(const void *buff, int len, __wsum sum);
-
-/*
- *	Note: when you get a NULL pointer exception here this means someone
- *	passed in an incorrect kernel address to one of these functions.
- *
- *	If you use these functions directly please don't forget the
- *	access_ok().
- */
-
-
-__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len,
-				       __wsum sum);
-
-__wsum csum_partial_copy_from_user(const void __user *src, void *dst,
-					 int len, __wsum sum, int *err_ptr);
-
-static inline __sum16 csum_fold(__wsum csum)
-{
-	u32 sum = (__force u32)csum;
-        sum = (sum & 0xffff) + (sum >> 16);
-        sum = (sum & 0xffff) + (sum >> 16);
-        return (__force __sum16)~sum;
-}
-
-__sum16 ip_fast_csum(const void *iph, unsigned int ihl);
-
-__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
-				 unsigned short len, unsigned short proto,
-				 __wsum sum);
-
-/*
- * computes the checksum of the TCP/UDP pseudo-header
- * returns a 16-bit checksum, already complemented
- */
-static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
-						   unsigned short len,
-						   unsigned short proto,
-						   __wsum sum)
-{
-	return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
-}
-
-/*
- * this routine is used for miscellaneous IP-like checksums, mainly
- * in icmp.c
- */
-static inline __sum16 ip_compute_csum(const void *buff, int len)
-{
-	return csum_fold(csum_partial(buff, len, 0));
-}
-
-#endif /* __ASM_SH64_CHECKSUM_H */
-
-- 
cgit v1.2.3-59-g8ed1b


From e32acaf601445ddc4baa52a1e4df638543455029 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 17:37:21 +0900
Subject: sh: Kill off lib64 version of iomap wrappers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/lib64/Makefile |  2 +-
 arch/sh/lib64/iomap.c  | 54 --------------------------------------------------
 2 files changed, 1 insertion(+), 55 deletions(-)
 delete mode 100644 arch/sh/lib64/iomap.c

(limited to 'arch')

diff --git a/arch/sh/lib64/Makefile b/arch/sh/lib64/Makefile
index c8c7cf4e8b48..2f4086ac6f99 100644
--- a/arch/sh/lib64/Makefile
+++ b/arch/sh/lib64/Makefile
@@ -11,5 +11,5 @@
 
 # Panic should really be compiled as PIC
 lib-y  := udelay.o c-checksum.o dbg.o panic.o memcpy.o copy_user_memcpy.o \
-		page_copy.o page_clear.o iomap.o
+		page_copy.o page_clear.o
 
diff --git a/arch/sh/lib64/iomap.c b/arch/sh/lib64/iomap.c
deleted file mode 100644
index 253d1e351d49..000000000000
--- a/arch/sh/lib64/iomap.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * arch/sh64/lib/iomap.c
- *
- * Generic sh64 iomap interface
- *
- * Copyright (C) 2004  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/pci.h>
-#include <asm/io.h>
-
-void __iomem *__attribute__ ((weak))
-ioport_map(unsigned long port, unsigned int len)
-{
-	return (void __iomem *)port;
-}
-EXPORT_SYMBOL(ioport_map);
-
-void ioport_unmap(void __iomem *addr)
-{
-	/* Nothing .. */
-}
-EXPORT_SYMBOL(ioport_unmap);
-
-#ifdef CONFIG_PCI
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
-	unsigned long start = pci_resource_start(dev, bar);
-	unsigned long len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len)
-		return NULL;
-	if (max && len > max)
-		len = max;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start + pciio_virt, len);
-	if (flags & IORESOURCE_MEM)
-		return (void __iomem *)start;
-
-	/* What? */
-	return NULL;
-}
-EXPORT_SYMBOL(pci_iomap);
-
-void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
-{
-	/* Nothing .. */
-}
-EXPORT_SYMBOL(pci_iounmap);
-#endif
-- 
cgit v1.2.3-59-g8ed1b


From 151468d2b42569f3aff1aedc0dddfed45159c2ab Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 17:41:35 +0900
Subject: sh: Fix up header reference for arch/sh/lib64/panic.c.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/lib64/panic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/lib64/panic.c b/arch/sh/lib64/panic.c
index c9eb1cb50d97..ff559e2a96f7 100644
--- a/arch/sh/lib64/panic.c
+++ b/arch/sh/lib64/panic.c
@@ -8,7 +8,7 @@
 
 #include <linux/kernel.h>
 #include <asm/io.h>
-#include <asm/registers.h>
+#include <asm/cpu/registers.h>
 
 /* THIS IS A PHYSICAL ADDRESS */
 #define HDSP2534_ADDR (0x04002100)
-- 
cgit v1.2.3-59-g8ed1b


From 4c91d6b105af5ab3011158addbd23f038aee6a00 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 17:41:56 +0900
Subject: sh: Fix up the head-y targets for _32 and _64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 897f1c590fac..4da3bc696b3d 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -95,7 +95,9 @@ endif
 KBUILD_CFLAGS		+= -pipe $(cflags-y)
 KBUILD_AFLAGS		+= $(cflags-y)
 
-head-y := arch/sh/kernel/head.o arch/sh/kernel/init_task.o
+head-y			:= arch/sh/kernel/init_task.o
+head-$(CONFIG_SUPERH32)	+= arch/sh/kernel/head_32.o
+head-$(CONFIG_SUPERH64)	+= arch/sh/kernel/head_64.o
 
 LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 
-- 
cgit v1.2.3-59-g8ed1b


From 1b6cf8175e52cbda111ab8b590da6a1d093e9954 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 17:46:49 +0900
Subject: sh: Split out syscall ABI for _32 and _64 variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile_32   |   4 +-
 arch/sh/kernel/Makefile_64   |   4 +-
 arch/sh/kernel/syscalls.S    | 343 -----------------------------------
 arch/sh/kernel/syscalls_32.S | 343 +++++++++++++++++++++++++++++++++++
 arch/sh/kernel/syscalls_64.S | 381 +++++++++++++++++++++++++++++++++++++++
 arch/sh64/kernel/syscalls.S  | 381 ---------------------------------------
 include/asm-sh/unistd.h      | 379 +--------------------------------------
 include/asm-sh/unistd_32.h   | 376 ++++++++++++++++++++++++++++++++++++++
 include/asm-sh/unistd_64.h   | 417 +++++++++++++++++++++++++++++++++++++++++++
 include/asm-sh64/unistd.h    | 417 -------------------------------------------
 10 files changed, 1525 insertions(+), 1520 deletions(-)
 delete mode 100644 arch/sh/kernel/syscalls.S
 create mode 100644 arch/sh/kernel/syscalls_32.S
 create mode 100644 arch/sh/kernel/syscalls_64.S
 delete mode 100644 arch/sh64/kernel/syscalls.S
 create mode 100644 include/asm-sh/unistd_32.h
 create mode 100644 include/asm-sh/unistd_64.h
 delete mode 100644 include/asm-sh64/unistd.h

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index 35be5e9674f8..c5a85bfbd451 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/arch/sh/kernel/Makefile_32
@@ -5,8 +5,8 @@
 extra-y	:= head_32.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_32.o \
-	   ptrace_32.o semaphore.o setup.o signal_32.o sys_sh.o syscalls.o \
-	   time.o topology.o traps_32.o
+	   ptrace_32.o semaphore.o setup.o signal_32.o sys_sh.o \
+	   syscalls_32.o time.o topology.o traps_32.o
 
 obj-y				+= cpu/ timers/
 obj-$(CONFIG_VSYSCALL)		+= vsyscall/
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index 6e72ed4c07fb..41b3efc25686 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/arch/sh/kernel/Makefile_64
@@ -1,8 +1,8 @@
 extra-y	:= head_64.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
-	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh64.o syscalls.o \
-	   time.o topology.o traps_64.o
+	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh64.o \
+	   syscalls_64.o time.o topology.o traps_64.o
 
 obj-y				+= cpu/ timers/
 obj-$(CONFIG_VSYSCALL)		+= vsyscall/
diff --git a/arch/sh/kernel/syscalls.S b/arch/sh/kernel/syscalls.S
deleted file mode 100644
index 10bec45415ba..000000000000
--- a/arch/sh/kernel/syscalls.S
+++ /dev/null
@@ -1,343 +0,0 @@
-/*
- * arch/sh/kernel/syscalls.S
- *
- * System call table for SuperH
- *
- *  Copyright (C) 1999, 2000, 2002  Niibe Yutaka
- *  Copyright (C) 2003  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-#include <linux/sys.h>
-#include <linux/linkage.h>
-
-	.data
-ENTRY(sys_call_table)
-	.long sys_restart_syscall	/* 0  -  old "setup()" system call*/
-	.long sys_exit
-	.long sys_fork
-	.long sys_read
-	.long sys_write
-	.long sys_open		/* 5 */
-	.long sys_close
-	.long sys_waitpid
-	.long sys_creat
-	.long sys_link
-	.long sys_unlink		/* 10 */
-	.long sys_execve
-	.long sys_chdir
-	.long sys_time
-	.long sys_mknod
-	.long sys_chmod		/* 15 */
-	.long sys_lchown16
-	.long sys_ni_syscall	/* old break syscall holder */
-	.long sys_stat
-	.long sys_lseek
-	.long sys_getpid		/* 20 */
-	.long sys_mount
-	.long sys_oldumount
-	.long sys_setuid16
-	.long sys_getuid16
-	.long sys_stime		/* 25 */
-	.long sys_ptrace
-	.long sys_alarm
-	.long sys_fstat
-	.long sys_pause
-	.long sys_utime		/* 30 */
-	.long sys_ni_syscall	/* old stty syscall holder */
-	.long sys_ni_syscall	/* old gtty syscall holder */
-	.long sys_access
-	.long sys_nice
-	.long sys_ni_syscall	/* 35 */		/* old ftime syscall holder */
-	.long sys_sync
-	.long sys_kill
-	.long sys_rename
-	.long sys_mkdir
-	.long sys_rmdir		/* 40 */
-	.long sys_dup
-	.long sys_pipe
-	.long sys_times
-	.long sys_ni_syscall	/* old prof syscall holder */
-	.long sys_brk		/* 45 */
-	.long sys_setgid16
-	.long sys_getgid16
-	.long sys_signal
-	.long sys_geteuid16
-	.long sys_getegid16	/* 50 */
-	.long sys_acct
-	.long sys_umount		/* recycled never used phys() */
-	.long sys_ni_syscall	/* old lock syscall holder */
-	.long sys_ioctl
-	.long sys_fcntl		/* 55 */
-	.long sys_ni_syscall	/* old mpx syscall holder */
-	.long sys_setpgid
-	.long sys_ni_syscall	/* old ulimit syscall holder */
-	.long sys_ni_syscall	/* sys_olduname */
-	.long sys_umask		/* 60 */
-	.long sys_chroot
-	.long sys_ustat
-	.long sys_dup2
-	.long sys_getppid
-	.long sys_getpgrp		/* 65 */
-	.long sys_setsid
-	.long sys_sigaction
-	.long sys_sgetmask
-	.long sys_ssetmask
-	.long sys_setreuid16	/* 70 */
-	.long sys_setregid16
-	.long sys_sigsuspend
-	.long sys_sigpending
-	.long sys_sethostname
-	.long sys_setrlimit	/* 75 */
-	.long sys_old_getrlimit
-	.long sys_getrusage
-	.long sys_gettimeofday
-	.long sys_settimeofday
-	.long sys_getgroups16	/* 80 */
-	.long sys_setgroups16
-	.long sys_ni_syscall	/* sys_oldselect */
-	.long sys_symlink
-	.long sys_lstat
-	.long sys_readlink		/* 85 */
-	.long sys_uselib
-	.long sys_swapon
-	.long sys_reboot
-	.long old_readdir
-	.long old_mmap		/* 90 */
-	.long sys_munmap
-	.long sys_truncate
-	.long sys_ftruncate
-	.long sys_fchmod
-	.long sys_fchown16		/* 95 */
-	.long sys_getpriority
-	.long sys_setpriority
-	.long sys_ni_syscall	/* old profil syscall holder */
-	.long sys_statfs
-	.long sys_fstatfs		/* 100 */
-	.long sys_ni_syscall	/* ioperm */
-	.long sys_socketcall
-	.long sys_syslog
-	.long sys_setitimer
-	.long sys_getitimer	/* 105 */
-	.long sys_newstat
-	.long sys_newlstat
-	.long sys_newfstat
-	.long sys_uname
-	.long sys_ni_syscall	/* 110 */ /* iopl */
-	.long sys_vhangup
-	.long sys_ni_syscall	/* idle */
-	.long sys_ni_syscall	/* vm86old */
-	.long sys_wait4
-	.long sys_swapoff		/* 115 */
-	.long sys_sysinfo
-	.long sys_ipc
-	.long sys_fsync
-	.long sys_sigreturn
-	.long sys_clone		/* 120 */
-	.long sys_setdomainname
-	.long sys_newuname
-	.long sys_ni_syscall	/* sys_modify_ldt */
-	.long sys_adjtimex
-	.long sys_mprotect		/* 125 */
-	.long sys_sigprocmask
-	.long sys_ni_syscall	/* old "create_module" */
-	.long sys_init_module
-	.long sys_delete_module
-	.long sys_ni_syscall	/* 130: old "get_kernel_syms" */
-	.long sys_quotactl
-	.long sys_getpgid
-	.long sys_fchdir
-	.long sys_bdflush
-	.long sys_sysfs		/* 135 */
-	.long sys_personality
-	.long sys_ni_syscall	/* for afs_syscall */
-	.long sys_setfsuid16
-	.long sys_setfsgid16
-	.long sys_llseek		/* 140 */
-	.long sys_getdents
-	.long sys_select
-	.long sys_flock
-	.long sys_msync
-	.long sys_readv		/* 145 */
-	.long sys_writev
-	.long sys_getsid
-	.long sys_fdatasync
-	.long sys_sysctl
-	.long sys_mlock		/* 150 */
-	.long sys_munlock
-	.long sys_mlockall
-	.long sys_munlockall
-	.long sys_sched_setparam
-	.long sys_sched_getparam   /* 155 */
-	.long sys_sched_setscheduler
-	.long sys_sched_getscheduler
-	.long sys_sched_yield
-	.long sys_sched_get_priority_max
-	.long sys_sched_get_priority_min  /* 160 */
-	.long sys_sched_rr_get_interval
-	.long sys_nanosleep
-	.long sys_mremap
-	.long sys_setresuid16
-	.long sys_getresuid16	/* 165 */
-	.long sys_ni_syscall	/* vm86 */
-	.long sys_ni_syscall	/* old "query_module" */
-	.long sys_poll
-	.long sys_nfsservctl
-	.long sys_setresgid16	/* 170 */
-	.long sys_getresgid16
-	.long sys_prctl
-	.long sys_rt_sigreturn
-	.long sys_rt_sigaction
-	.long sys_rt_sigprocmask	/* 175 */
-	.long sys_rt_sigpending
-	.long sys_rt_sigtimedwait
-	.long sys_rt_sigqueueinfo
-	.long sys_rt_sigsuspend
-	.long sys_pread_wrapper	   /* 180 */
-	.long sys_pwrite_wrapper
-	.long sys_chown16
-	.long sys_getcwd
-	.long sys_capget
-	.long sys_capset           /* 185 */
-	.long sys_sigaltstack
-	.long sys_sendfile
-	.long sys_ni_syscall	/* streams1 */
-	.long sys_ni_syscall	/* streams2 */
-	.long sys_vfork            /* 190 */
-	.long sys_getrlimit
-	.long sys_mmap2
-	.long sys_truncate64
-	.long sys_ftruncate64
-	.long sys_stat64		/* 195 */
-	.long sys_lstat64
-	.long sys_fstat64
-	.long sys_lchown
-	.long sys_getuid
-	.long sys_getgid		/* 200 */
-	.long sys_geteuid
-	.long sys_getegid
-	.long sys_setreuid
-	.long sys_setregid
-	.long sys_getgroups	/* 205 */
-	.long sys_setgroups
-	.long sys_fchown
-	.long sys_setresuid
-	.long sys_getresuid
-	.long sys_setresgid	/* 210 */
-	.long sys_getresgid
-	.long sys_chown
-	.long sys_setuid
-	.long sys_setgid
-	.long sys_setfsuid		/* 215 */
-	.long sys_setfsgid
-	.long sys_pivot_root
-	.long sys_mincore
-	.long sys_madvise
-	.long sys_getdents64	/* 220 */
-	.long sys_fcntl64
-	.long sys_ni_syscall	/* reserved for TUX */
-	.long sys_ni_syscall	/* Reserved for Security */
-	.long sys_gettid
-	.long sys_readahead	/* 225 */
-	.long sys_setxattr
-	.long sys_lsetxattr
-	.long sys_fsetxattr
-	.long sys_getxattr
-	.long sys_lgetxattr	/* 230 */
-	.long sys_fgetxattr
-	.long sys_listxattr
-	.long sys_llistxattr
-	.long sys_flistxattr
-	.long sys_removexattr	/* 235 */
-	.long sys_lremovexattr
-	.long sys_fremovexattr
-	.long sys_tkill
-	.long sys_sendfile64
-	.long sys_futex		/* 240 */
-	.long sys_sched_setaffinity
-	.long sys_sched_getaffinity
-	.long sys_ni_syscall
-	.long sys_ni_syscall
-	.long sys_io_setup	/* 245 */
-	.long sys_io_destroy
-	.long sys_io_getevents
-	.long sys_io_submit
-	.long sys_io_cancel
-	.long sys_fadvise64	/* 250 */
-	.long sys_ni_syscall
-	.long sys_exit_group
-	.long sys_lookup_dcookie
-	.long sys_epoll_create
-	.long sys_epoll_ctl	/* 255 */
-	.long sys_epoll_wait
- 	.long sys_remap_file_pages
- 	.long sys_set_tid_address
- 	.long sys_timer_create
- 	.long sys_timer_settime		/* 260 */
- 	.long sys_timer_gettime
- 	.long sys_timer_getoverrun
- 	.long sys_timer_delete
- 	.long sys_clock_settime
- 	.long sys_clock_gettime		/* 265 */
- 	.long sys_clock_getres
- 	.long sys_clock_nanosleep
-	.long sys_statfs64
-	.long sys_fstatfs64
-	.long sys_tgkill		/* 270 */
-	.long sys_utimes
- 	.long sys_fadvise64_64_wrapper
-	.long sys_ni_syscall	/* Reserved for vserver */
-	.long sys_mbind
-	.long sys_get_mempolicy		/* 275 */
-	.long sys_set_mempolicy
-	.long sys_mq_open
-	.long sys_mq_unlink
-	.long sys_mq_timedsend
-	.long sys_mq_timedreceive       /* 280 */
-	.long sys_mq_notify
-	.long sys_mq_getsetattr
-	.long sys_kexec_load
-	.long sys_waitid
-	.long sys_add_key		/* 285 */
-	.long sys_request_key
-	.long sys_keyctl
-	.long sys_ioprio_set
-	.long sys_ioprio_get
-	.long sys_inotify_init		/* 290 */
-	.long sys_inotify_add_watch
-	.long sys_inotify_rm_watch
-	.long sys_ni_syscall
-	.long sys_migrate_pages
-	.long sys_openat		/* 295 */
-	.long sys_mkdirat
-	.long sys_mknodat
-	.long sys_fchownat
-	.long sys_futimesat
-	.long sys_fstatat64		/* 300 */
-	.long sys_unlinkat
-	.long sys_renameat
-	.long sys_linkat
-	.long sys_symlinkat
-	.long sys_readlinkat		/* 305 */
-	.long sys_fchmodat
-	.long sys_faccessat
-	.long sys_pselect6
-	.long sys_ppoll
-	.long sys_unshare		/* 310 */
-	.long sys_set_robust_list
-	.long sys_get_robust_list
-	.long sys_splice
-	.long sys_sync_file_range
-	.long sys_tee			/* 315 */
-	.long sys_vmsplice
-	.long sys_move_pages
-	.long sys_getcpu
-	.long sys_epoll_pwait
-	.long sys_utimensat		/* 320 */
-	.long sys_signalfd
-	.long sys_timerfd
-	.long sys_eventfd
-	.long sys_fallocate
diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S
new file mode 100644
index 000000000000..10bec45415ba
--- /dev/null
+++ b/arch/sh/kernel/syscalls_32.S
@@ -0,0 +1,343 @@
+/*
+ * arch/sh/kernel/syscalls.S
+ *
+ * System call table for SuperH
+ *
+ *  Copyright (C) 1999, 2000, 2002  Niibe Yutaka
+ *  Copyright (C) 2003  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ */
+#include <linux/sys.h>
+#include <linux/linkage.h>
+
+	.data
+ENTRY(sys_call_table)
+	.long sys_restart_syscall	/* 0  -  old "setup()" system call*/
+	.long sys_exit
+	.long sys_fork
+	.long sys_read
+	.long sys_write
+	.long sys_open		/* 5 */
+	.long sys_close
+	.long sys_waitpid
+	.long sys_creat
+	.long sys_link
+	.long sys_unlink		/* 10 */
+	.long sys_execve
+	.long sys_chdir
+	.long sys_time
+	.long sys_mknod
+	.long sys_chmod		/* 15 */
+	.long sys_lchown16
+	.long sys_ni_syscall	/* old break syscall holder */
+	.long sys_stat
+	.long sys_lseek
+	.long sys_getpid		/* 20 */
+	.long sys_mount
+	.long sys_oldumount
+	.long sys_setuid16
+	.long sys_getuid16
+	.long sys_stime		/* 25 */
+	.long sys_ptrace
+	.long sys_alarm
+	.long sys_fstat
+	.long sys_pause
+	.long sys_utime		/* 30 */
+	.long sys_ni_syscall	/* old stty syscall holder */
+	.long sys_ni_syscall	/* old gtty syscall holder */
+	.long sys_access
+	.long sys_nice
+	.long sys_ni_syscall	/* 35 */		/* old ftime syscall holder */
+	.long sys_sync
+	.long sys_kill
+	.long sys_rename
+	.long sys_mkdir
+	.long sys_rmdir		/* 40 */
+	.long sys_dup
+	.long sys_pipe
+	.long sys_times
+	.long sys_ni_syscall	/* old prof syscall holder */
+	.long sys_brk		/* 45 */
+	.long sys_setgid16
+	.long sys_getgid16
+	.long sys_signal
+	.long sys_geteuid16
+	.long sys_getegid16	/* 50 */
+	.long sys_acct
+	.long sys_umount		/* recycled never used phys() */
+	.long sys_ni_syscall	/* old lock syscall holder */
+	.long sys_ioctl
+	.long sys_fcntl		/* 55 */
+	.long sys_ni_syscall	/* old mpx syscall holder */
+	.long sys_setpgid
+	.long sys_ni_syscall	/* old ulimit syscall holder */
+	.long sys_ni_syscall	/* sys_olduname */
+	.long sys_umask		/* 60 */
+	.long sys_chroot
+	.long sys_ustat
+	.long sys_dup2
+	.long sys_getppid
+	.long sys_getpgrp		/* 65 */
+	.long sys_setsid
+	.long sys_sigaction
+	.long sys_sgetmask
+	.long sys_ssetmask
+	.long sys_setreuid16	/* 70 */
+	.long sys_setregid16
+	.long sys_sigsuspend
+	.long sys_sigpending
+	.long sys_sethostname
+	.long sys_setrlimit	/* 75 */
+	.long sys_old_getrlimit
+	.long sys_getrusage
+	.long sys_gettimeofday
+	.long sys_settimeofday
+	.long sys_getgroups16	/* 80 */
+	.long sys_setgroups16
+	.long sys_ni_syscall	/* sys_oldselect */
+	.long sys_symlink
+	.long sys_lstat
+	.long sys_readlink		/* 85 */
+	.long sys_uselib
+	.long sys_swapon
+	.long sys_reboot
+	.long old_readdir
+	.long old_mmap		/* 90 */
+	.long sys_munmap
+	.long sys_truncate
+	.long sys_ftruncate
+	.long sys_fchmod
+	.long sys_fchown16		/* 95 */
+	.long sys_getpriority
+	.long sys_setpriority
+	.long sys_ni_syscall	/* old profil syscall holder */
+	.long sys_statfs
+	.long sys_fstatfs		/* 100 */
+	.long sys_ni_syscall	/* ioperm */
+	.long sys_socketcall
+	.long sys_syslog
+	.long sys_setitimer
+	.long sys_getitimer	/* 105 */
+	.long sys_newstat
+	.long sys_newlstat
+	.long sys_newfstat
+	.long sys_uname
+	.long sys_ni_syscall	/* 110 */ /* iopl */
+	.long sys_vhangup
+	.long sys_ni_syscall	/* idle */
+	.long sys_ni_syscall	/* vm86old */
+	.long sys_wait4
+	.long sys_swapoff		/* 115 */
+	.long sys_sysinfo
+	.long sys_ipc
+	.long sys_fsync
+	.long sys_sigreturn
+	.long sys_clone		/* 120 */
+	.long sys_setdomainname
+	.long sys_newuname
+	.long sys_ni_syscall	/* sys_modify_ldt */
+	.long sys_adjtimex
+	.long sys_mprotect		/* 125 */
+	.long sys_sigprocmask
+	.long sys_ni_syscall	/* old "create_module" */
+	.long sys_init_module
+	.long sys_delete_module
+	.long sys_ni_syscall	/* 130: old "get_kernel_syms" */
+	.long sys_quotactl
+	.long sys_getpgid
+	.long sys_fchdir
+	.long sys_bdflush
+	.long sys_sysfs		/* 135 */
+	.long sys_personality
+	.long sys_ni_syscall	/* for afs_syscall */
+	.long sys_setfsuid16
+	.long sys_setfsgid16
+	.long sys_llseek		/* 140 */
+	.long sys_getdents
+	.long sys_select
+	.long sys_flock
+	.long sys_msync
+	.long sys_readv		/* 145 */
+	.long sys_writev
+	.long sys_getsid
+	.long sys_fdatasync
+	.long sys_sysctl
+	.long sys_mlock		/* 150 */
+	.long sys_munlock
+	.long sys_mlockall
+	.long sys_munlockall
+	.long sys_sched_setparam
+	.long sys_sched_getparam   /* 155 */
+	.long sys_sched_setscheduler
+	.long sys_sched_getscheduler
+	.long sys_sched_yield
+	.long sys_sched_get_priority_max
+	.long sys_sched_get_priority_min  /* 160 */
+	.long sys_sched_rr_get_interval
+	.long sys_nanosleep
+	.long sys_mremap
+	.long sys_setresuid16
+	.long sys_getresuid16	/* 165 */
+	.long sys_ni_syscall	/* vm86 */
+	.long sys_ni_syscall	/* old "query_module" */
+	.long sys_poll
+	.long sys_nfsservctl
+	.long sys_setresgid16	/* 170 */
+	.long sys_getresgid16
+	.long sys_prctl
+	.long sys_rt_sigreturn
+	.long sys_rt_sigaction
+	.long sys_rt_sigprocmask	/* 175 */
+	.long sys_rt_sigpending
+	.long sys_rt_sigtimedwait
+	.long sys_rt_sigqueueinfo
+	.long sys_rt_sigsuspend
+	.long sys_pread_wrapper	   /* 180 */
+	.long sys_pwrite_wrapper
+	.long sys_chown16
+	.long sys_getcwd
+	.long sys_capget
+	.long sys_capset           /* 185 */
+	.long sys_sigaltstack
+	.long sys_sendfile
+	.long sys_ni_syscall	/* streams1 */
+	.long sys_ni_syscall	/* streams2 */
+	.long sys_vfork            /* 190 */
+	.long sys_getrlimit
+	.long sys_mmap2
+	.long sys_truncate64
+	.long sys_ftruncate64
+	.long sys_stat64		/* 195 */
+	.long sys_lstat64
+	.long sys_fstat64
+	.long sys_lchown
+	.long sys_getuid
+	.long sys_getgid		/* 200 */
+	.long sys_geteuid
+	.long sys_getegid
+	.long sys_setreuid
+	.long sys_setregid
+	.long sys_getgroups	/* 205 */
+	.long sys_setgroups
+	.long sys_fchown
+	.long sys_setresuid
+	.long sys_getresuid
+	.long sys_setresgid	/* 210 */
+	.long sys_getresgid
+	.long sys_chown
+	.long sys_setuid
+	.long sys_setgid
+	.long sys_setfsuid		/* 215 */
+	.long sys_setfsgid
+	.long sys_pivot_root
+	.long sys_mincore
+	.long sys_madvise
+	.long sys_getdents64	/* 220 */
+	.long sys_fcntl64
+	.long sys_ni_syscall	/* reserved for TUX */
+	.long sys_ni_syscall	/* Reserved for Security */
+	.long sys_gettid
+	.long sys_readahead	/* 225 */
+	.long sys_setxattr
+	.long sys_lsetxattr
+	.long sys_fsetxattr
+	.long sys_getxattr
+	.long sys_lgetxattr	/* 230 */
+	.long sys_fgetxattr
+	.long sys_listxattr
+	.long sys_llistxattr
+	.long sys_flistxattr
+	.long sys_removexattr	/* 235 */
+	.long sys_lremovexattr
+	.long sys_fremovexattr
+	.long sys_tkill
+	.long sys_sendfile64
+	.long sys_futex		/* 240 */
+	.long sys_sched_setaffinity
+	.long sys_sched_getaffinity
+	.long sys_ni_syscall
+	.long sys_ni_syscall
+	.long sys_io_setup	/* 245 */
+	.long sys_io_destroy
+	.long sys_io_getevents
+	.long sys_io_submit
+	.long sys_io_cancel
+	.long sys_fadvise64	/* 250 */
+	.long sys_ni_syscall
+	.long sys_exit_group
+	.long sys_lookup_dcookie
+	.long sys_epoll_create
+	.long sys_epoll_ctl	/* 255 */
+	.long sys_epoll_wait
+ 	.long sys_remap_file_pages
+ 	.long sys_set_tid_address
+ 	.long sys_timer_create
+ 	.long sys_timer_settime		/* 260 */
+ 	.long sys_timer_gettime
+ 	.long sys_timer_getoverrun
+ 	.long sys_timer_delete
+ 	.long sys_clock_settime
+ 	.long sys_clock_gettime		/* 265 */
+ 	.long sys_clock_getres
+ 	.long sys_clock_nanosleep
+	.long sys_statfs64
+	.long sys_fstatfs64
+	.long sys_tgkill		/* 270 */
+	.long sys_utimes
+ 	.long sys_fadvise64_64_wrapper
+	.long sys_ni_syscall	/* Reserved for vserver */
+	.long sys_mbind
+	.long sys_get_mempolicy		/* 275 */
+	.long sys_set_mempolicy
+	.long sys_mq_open
+	.long sys_mq_unlink
+	.long sys_mq_timedsend
+	.long sys_mq_timedreceive       /* 280 */
+	.long sys_mq_notify
+	.long sys_mq_getsetattr
+	.long sys_kexec_load
+	.long sys_waitid
+	.long sys_add_key		/* 285 */
+	.long sys_request_key
+	.long sys_keyctl
+	.long sys_ioprio_set
+	.long sys_ioprio_get
+	.long sys_inotify_init		/* 290 */
+	.long sys_inotify_add_watch
+	.long sys_inotify_rm_watch
+	.long sys_ni_syscall
+	.long sys_migrate_pages
+	.long sys_openat		/* 295 */
+	.long sys_mkdirat
+	.long sys_mknodat
+	.long sys_fchownat
+	.long sys_futimesat
+	.long sys_fstatat64		/* 300 */
+	.long sys_unlinkat
+	.long sys_renameat
+	.long sys_linkat
+	.long sys_symlinkat
+	.long sys_readlinkat		/* 305 */
+	.long sys_fchmodat
+	.long sys_faccessat
+	.long sys_pselect6
+	.long sys_ppoll
+	.long sys_unshare		/* 310 */
+	.long sys_set_robust_list
+	.long sys_get_robust_list
+	.long sys_splice
+	.long sys_sync_file_range
+	.long sys_tee			/* 315 */
+	.long sys_vmsplice
+	.long sys_move_pages
+	.long sys_getcpu
+	.long sys_epoll_pwait
+	.long sys_utimensat		/* 320 */
+	.long sys_signalfd
+	.long sys_timerfd
+	.long sys_eventfd
+	.long sys_fallocate
diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S
new file mode 100644
index 000000000000..abb94c05d07a
--- /dev/null
+++ b/arch/sh/kernel/syscalls_64.S
@@ -0,0 +1,381 @@
+/*
+ * arch/sh64/kernel/syscalls.S
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2004 - 2007  Paul Mundt
+ * Copyright (C) 2003, 2004 Richard Curnow
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/sys.h>
+
+	.section .data, "aw"
+	.balign 32
+
+/*
+ * System calls jump table
+ */
+	.globl  sys_call_table
+sys_call_table:
+	.long sys_restart_syscall	/* 0  -  old "setup()" system call  */
+	.long sys_exit
+	.long sys_fork
+	.long sys_read
+	.long sys_write
+	.long sys_open			/* 5 */
+	.long sys_close
+	.long sys_waitpid
+	.long sys_creat
+	.long sys_link
+	.long sys_unlink		/* 10 */
+	.long sys_execve
+	.long sys_chdir
+	.long sys_time
+	.long sys_mknod
+	.long sys_chmod			/* 15 */
+	.long sys_lchown16
+	.long sys_ni_syscall	/* old break syscall holder */
+	.long sys_stat
+	.long sys_lseek
+	.long sys_getpid		/* 20 */
+	.long sys_mount
+	.long sys_oldumount
+	.long sys_setuid16
+	.long sys_getuid16
+	.long sys_stime			/* 25 */
+	.long sh64_ptrace
+	.long sys_alarm
+	.long sys_fstat
+	.long sys_pause
+	.long sys_utime			/* 30 */
+	.long sys_ni_syscall	/* old stty syscall holder */
+	.long sys_ni_syscall	/* old gtty syscall holder */
+	.long sys_access
+	.long sys_nice
+	.long sys_ni_syscall		/* 35 */ /* old ftime syscall holder */
+	.long sys_sync
+	.long sys_kill
+	.long sys_rename
+	.long sys_mkdir
+	.long sys_rmdir			/* 40 */
+	.long sys_dup
+	.long sys_pipe
+	.long sys_times
+	.long sys_ni_syscall	/* old prof syscall holder */
+	.long sys_brk			/* 45 */
+	.long sys_setgid16
+	.long sys_getgid16
+	.long sys_signal
+	.long sys_geteuid16
+	.long sys_getegid16		/* 50 */
+	.long sys_acct
+	.long sys_umount		/* recycled never used phys( */
+	.long sys_ni_syscall	/* old lock syscall holder */
+	.long sys_ioctl
+	.long sys_fcntl			/* 55 */
+	.long sys_ni_syscall	/* old mpx syscall holder */
+	.long sys_setpgid
+	.long sys_ni_syscall	/* old ulimit syscall holder */
+	.long sys_ni_syscall	/* sys_olduname */
+	.long sys_umask			/* 60 */
+	.long sys_chroot
+	.long sys_ustat
+	.long sys_dup2
+	.long sys_getppid
+	.long sys_getpgrp		/* 65 */
+	.long sys_setsid
+	.long sys_sigaction
+	.long sys_sgetmask
+	.long sys_ssetmask
+	.long sys_setreuid16		/* 70 */
+	.long sys_setregid16
+	.long sys_sigsuspend
+	.long sys_sigpending
+	.long sys_sethostname
+	.long sys_setrlimit		/* 75 */
+	.long sys_old_getrlimit
+	.long sys_getrusage
+	.long sys_gettimeofday
+	.long sys_settimeofday
+	.long sys_getgroups16		/* 80 */
+	.long sys_setgroups16
+	.long sys_ni_syscall	/* sys_oldselect */
+	.long sys_symlink
+	.long sys_lstat
+	.long sys_readlink		/* 85 */
+	.long sys_uselib
+	.long sys_swapon
+	.long sys_reboot
+	.long old_readdir
+	.long old_mmap			/* 90 */
+	.long sys_munmap
+	.long sys_truncate
+	.long sys_ftruncate
+	.long sys_fchmod
+	.long sys_fchown16		/* 95 */
+	.long sys_getpriority
+	.long sys_setpriority
+	.long sys_ni_syscall	/* old profil syscall holder */
+	.long sys_statfs
+	.long sys_fstatfs		/* 100 */
+	.long sys_ni_syscall	/* ioperm */
+	.long sys_socketcall	/* Obsolete implementation of socket syscall */
+	.long sys_syslog
+	.long sys_setitimer
+	.long sys_getitimer		/* 105 */
+	.long sys_newstat
+	.long sys_newlstat
+	.long sys_newfstat
+	.long sys_uname
+	.long sys_ni_syscall		/* 110 */ /* iopl */
+	.long sys_vhangup
+	.long sys_ni_syscall	/* idle */
+	.long sys_ni_syscall	/* vm86old */
+	.long sys_wait4
+	.long sys_swapoff		/* 115 */
+	.long sys_sysinfo
+	.long sys_ipc		/* Obsolete ipc syscall implementation */
+	.long sys_fsync
+	.long sys_sigreturn
+	.long sys_clone			/* 120 */
+	.long sys_setdomainname
+	.long sys_newuname
+	.long sys_ni_syscall	/* sys_modify_ldt */
+	.long sys_adjtimex
+	.long sys_mprotect		/* 125 */
+	.long sys_sigprocmask
+	.long sys_ni_syscall		/* old "create_module" */
+	.long sys_init_module
+	.long sys_delete_module
+	.long sys_ni_syscall		/* 130: old "get_kernel_syms" */
+	.long sys_quotactl
+	.long sys_getpgid
+	.long sys_fchdir
+	.long sys_bdflush
+	.long sys_sysfs			/* 135 */
+	.long sys_personality
+	.long sys_ni_syscall	/* for afs_syscall */
+	.long sys_setfsuid16
+	.long sys_setfsgid16
+	.long sys_llseek		/* 140 */
+	.long sys_getdents
+	.long sys_select
+	.long sys_flock
+	.long sys_msync
+	.long sys_readv			/* 145 */
+	.long sys_writev
+	.long sys_getsid
+	.long sys_fdatasync
+	.long sys_sysctl
+	.long sys_mlock			/* 150 */
+	.long sys_munlock
+	.long sys_mlockall
+	.long sys_munlockall
+	.long sys_sched_setparam
+	.long sys_sched_getparam	/* 155 */
+	.long sys_sched_setscheduler
+	.long sys_sched_getscheduler
+	.long sys_sched_yield
+	.long sys_sched_get_priority_max
+	.long sys_sched_get_priority_min  /* 160 */
+	.long sys_sched_rr_get_interval
+	.long sys_nanosleep
+	.long sys_mremap
+	.long sys_setresuid16
+	.long sys_getresuid16		/* 165 */
+	.long sys_ni_syscall	/* vm86 */
+	.long sys_ni_syscall	/* old "query_module" */
+	.long sys_poll
+	.long sys_nfsservctl
+	.long sys_setresgid16		/* 170 */
+	.long sys_getresgid16
+	.long sys_prctl
+	.long sys_rt_sigreturn
+	.long sys_rt_sigaction
+	.long sys_rt_sigprocmask	/* 175 */
+	.long sys_rt_sigpending
+	.long sys_rt_sigtimedwait
+	.long sys_rt_sigqueueinfo
+	.long sys_rt_sigsuspend
+	.long sys_pread64		/* 180 */
+	.long sys_pwrite64
+	.long sys_chown16
+	.long sys_getcwd
+	.long sys_capget
+	.long sys_capset		/* 185 */
+	.long sys_sigaltstack
+	.long sys_sendfile
+	.long sys_ni_syscall	/* streams1 */
+	.long sys_ni_syscall	/* streams2 */
+	.long sys_vfork			/* 190 */
+	.long sys_getrlimit
+	.long sys_mmap2
+	.long sys_truncate64
+	.long sys_ftruncate64
+	.long sys_stat64		/* 195 */
+	.long sys_lstat64
+	.long sys_fstat64
+	.long sys_lchown
+	.long sys_getuid
+	.long sys_getgid		/* 200 */
+	.long sys_geteuid
+	.long sys_getegid
+	.long sys_setreuid
+	.long sys_setregid
+	.long sys_getgroups		/* 205 */
+	.long sys_setgroups
+	.long sys_fchown
+	.long sys_setresuid
+	.long sys_getresuid
+	.long sys_setresgid		/* 210 */
+	.long sys_getresgid
+	.long sys_chown
+	.long sys_setuid
+	.long sys_setgid
+	.long sys_setfsuid		/* 215 */
+	.long sys_setfsgid
+	.long sys_pivot_root
+	.long sys_mincore
+	.long sys_madvise
+	/* Broken-out socket family (maintain backwards compatibility in syscall
+	   numbering with 2.4) */
+	.long sys_socket		/* 220 */
+	.long sys_bind
+	.long sys_connect
+	.long sys_listen
+	.long sys_accept
+	.long sys_getsockname		/* 225 */
+	.long sys_getpeername
+	.long sys_socketpair
+	.long sys_send
+	.long sys_sendto
+	.long sys_recv			/* 230*/
+	.long sys_recvfrom
+	.long sys_shutdown
+	.long sys_setsockopt
+	.long sys_getsockopt
+	.long sys_sendmsg		/* 235 */
+	.long sys_recvmsg
+	/* Broken-out IPC family (maintain backwards compatibility in syscall
+	   numbering with 2.4) */
+	.long sys_semop
+	.long sys_semget
+	.long sys_semctl
+	.long sys_msgsnd		/* 240 */
+	.long sys_msgrcv
+	.long sys_msgget
+	.long sys_msgctl
+	.long sys_shmat
+	.long sys_shmdt			/* 245 */
+	.long sys_shmget
+	.long sys_shmctl
+	/* Rest of syscalls listed in 2.4 i386 unistd.h */
+	.long sys_getdents64
+	.long sys_fcntl64
+	.long sys_ni_syscall		/* 250 reserved for TUX */
+	.long sys_ni_syscall		/* Reserved for Security */
+	.long sys_gettid
+	.long sys_readahead
+	.long sys_setxattr
+	.long sys_lsetxattr		/* 255 */
+	.long sys_fsetxattr
+	.long sys_getxattr
+	.long sys_lgetxattr
+	.long sys_fgetxattr
+	.long sys_listxattr		/* 260 */
+	.long sys_llistxattr
+	.long sys_flistxattr
+	.long sys_removexattr
+	.long sys_lremovexattr
+	.long sys_fremovexattr  	/* 265 */
+	.long sys_tkill
+	.long sys_sendfile64
+	.long sys_futex
+	.long sys_sched_setaffinity
+	.long sys_sched_getaffinity	/* 270 */
+	.long sys_ni_syscall
+	.long sys_ni_syscall
+	.long sys_io_setup
+	.long sys_io_destroy
+	.long sys_io_getevents		/* 275 */
+	.long sys_io_submit
+	.long sys_io_cancel
+	.long sys_fadvise64
+	.long sys_ni_syscall
+	.long sys_exit_group		/* 280 */
+	/* Rest of new 2.6 syscalls */
+	.long sys_lookup_dcookie
+	.long sys_epoll_create
+	.long sys_epoll_ctl
+	.long sys_epoll_wait
+ 	.long sys_remap_file_pages	/* 285 */
+ 	.long sys_set_tid_address
+ 	.long sys_timer_create
+ 	.long sys_timer_settime
+ 	.long sys_timer_gettime
+ 	.long sys_timer_getoverrun	/* 290 */
+ 	.long sys_timer_delete
+ 	.long sys_clock_settime
+ 	.long sys_clock_gettime
+ 	.long sys_clock_getres
+ 	.long sys_clock_nanosleep	/* 295 */
+	.long sys_statfs64
+	.long sys_fstatfs64
+	.long sys_tgkill
+	.long sys_utimes
+ 	.long sys_fadvise64_64		/* 300 */
+	.long sys_ni_syscall	/* Reserved for vserver */
+	.long sys_ni_syscall	/* Reserved for mbind */
+	.long sys_ni_syscall	/* get_mempolicy */
+	.long sys_ni_syscall	/* set_mempolicy */
+	.long sys_mq_open		/* 305 */
+	.long sys_mq_unlink
+	.long sys_mq_timedsend
+	.long sys_mq_timedreceive
+	.long sys_mq_notify
+	.long sys_mq_getsetattr		/* 310 */
+	.long sys_ni_syscall	/* Reserved for kexec */
+	.long sys_waitid
+	.long sys_add_key
+	.long sys_request_key
+	.long sys_keyctl		/* 315 */
+	.long sys_ioprio_set
+	.long sys_ioprio_get
+	.long sys_inotify_init
+	.long sys_inotify_add_watch
+	.long sys_inotify_rm_watch	/* 320 */
+	.long sys_ni_syscall
+	.long sys_migrate_pages
+	.long sys_openat
+	.long sys_mkdirat
+	.long sys_mknodat		/* 325 */
+	.long sys_fchownat
+	.long sys_futimesat
+	.long sys_fstatat64
+	.long sys_unlinkat
+	.long sys_renameat		/* 330 */
+	.long sys_linkat
+	.long sys_symlinkat
+	.long sys_readlinkat
+	.long sys_fchmodat
+	.long sys_faccessat		/* 335 */
+	.long sys_pselect6
+	.long sys_ppoll
+	.long sys_unshare
+	.long sys_set_robust_list
+	.long sys_get_robust_list	/* 340 */
+	.long sys_splice
+	.long sys_sync_file_range
+	.long sys_tee
+	.long sys_vmsplice
+	.long sys_move_pages		/* 345 */
+	.long sys_getcpu
+	.long sys_epoll_pwait
+	.long sys_utimensat
+	.long sys_signalfd
+	.long sys_timerfd		/* 350 */
+	.long sys_eventfd
+	.long sys_fallocate
diff --git a/arch/sh64/kernel/syscalls.S b/arch/sh64/kernel/syscalls.S
deleted file mode 100644
index abb94c05d07a..000000000000
--- a/arch/sh64/kernel/syscalls.S
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * arch/sh64/kernel/syscalls.S
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2004 - 2007  Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/sys.h>
-
-	.section .data, "aw"
-	.balign 32
-
-/*
- * System calls jump table
- */
-	.globl  sys_call_table
-sys_call_table:
-	.long sys_restart_syscall	/* 0  -  old "setup()" system call  */
-	.long sys_exit
-	.long sys_fork
-	.long sys_read
-	.long sys_write
-	.long sys_open			/* 5 */
-	.long sys_close
-	.long sys_waitpid
-	.long sys_creat
-	.long sys_link
-	.long sys_unlink		/* 10 */
-	.long sys_execve
-	.long sys_chdir
-	.long sys_time
-	.long sys_mknod
-	.long sys_chmod			/* 15 */
-	.long sys_lchown16
-	.long sys_ni_syscall	/* old break syscall holder */
-	.long sys_stat
-	.long sys_lseek
-	.long sys_getpid		/* 20 */
-	.long sys_mount
-	.long sys_oldumount
-	.long sys_setuid16
-	.long sys_getuid16
-	.long sys_stime			/* 25 */
-	.long sh64_ptrace
-	.long sys_alarm
-	.long sys_fstat
-	.long sys_pause
-	.long sys_utime			/* 30 */
-	.long sys_ni_syscall	/* old stty syscall holder */
-	.long sys_ni_syscall	/* old gtty syscall holder */
-	.long sys_access
-	.long sys_nice
-	.long sys_ni_syscall		/* 35 */ /* old ftime syscall holder */
-	.long sys_sync
-	.long sys_kill
-	.long sys_rename
-	.long sys_mkdir
-	.long sys_rmdir			/* 40 */
-	.long sys_dup
-	.long sys_pipe
-	.long sys_times
-	.long sys_ni_syscall	/* old prof syscall holder */
-	.long sys_brk			/* 45 */
-	.long sys_setgid16
-	.long sys_getgid16
-	.long sys_signal
-	.long sys_geteuid16
-	.long sys_getegid16		/* 50 */
-	.long sys_acct
-	.long sys_umount		/* recycled never used phys( */
-	.long sys_ni_syscall	/* old lock syscall holder */
-	.long sys_ioctl
-	.long sys_fcntl			/* 55 */
-	.long sys_ni_syscall	/* old mpx syscall holder */
-	.long sys_setpgid
-	.long sys_ni_syscall	/* old ulimit syscall holder */
-	.long sys_ni_syscall	/* sys_olduname */
-	.long sys_umask			/* 60 */
-	.long sys_chroot
-	.long sys_ustat
-	.long sys_dup2
-	.long sys_getppid
-	.long sys_getpgrp		/* 65 */
-	.long sys_setsid
-	.long sys_sigaction
-	.long sys_sgetmask
-	.long sys_ssetmask
-	.long sys_setreuid16		/* 70 */
-	.long sys_setregid16
-	.long sys_sigsuspend
-	.long sys_sigpending
-	.long sys_sethostname
-	.long sys_setrlimit		/* 75 */
-	.long sys_old_getrlimit
-	.long sys_getrusage
-	.long sys_gettimeofday
-	.long sys_settimeofday
-	.long sys_getgroups16		/* 80 */
-	.long sys_setgroups16
-	.long sys_ni_syscall	/* sys_oldselect */
-	.long sys_symlink
-	.long sys_lstat
-	.long sys_readlink		/* 85 */
-	.long sys_uselib
-	.long sys_swapon
-	.long sys_reboot
-	.long old_readdir
-	.long old_mmap			/* 90 */
-	.long sys_munmap
-	.long sys_truncate
-	.long sys_ftruncate
-	.long sys_fchmod
-	.long sys_fchown16		/* 95 */
-	.long sys_getpriority
-	.long sys_setpriority
-	.long sys_ni_syscall	/* old profil syscall holder */
-	.long sys_statfs
-	.long sys_fstatfs		/* 100 */
-	.long sys_ni_syscall	/* ioperm */
-	.long sys_socketcall	/* Obsolete implementation of socket syscall */
-	.long sys_syslog
-	.long sys_setitimer
-	.long sys_getitimer		/* 105 */
-	.long sys_newstat
-	.long sys_newlstat
-	.long sys_newfstat
-	.long sys_uname
-	.long sys_ni_syscall		/* 110 */ /* iopl */
-	.long sys_vhangup
-	.long sys_ni_syscall	/* idle */
-	.long sys_ni_syscall	/* vm86old */
-	.long sys_wait4
-	.long sys_swapoff		/* 115 */
-	.long sys_sysinfo
-	.long sys_ipc		/* Obsolete ipc syscall implementation */
-	.long sys_fsync
-	.long sys_sigreturn
-	.long sys_clone			/* 120 */
-	.long sys_setdomainname
-	.long sys_newuname
-	.long sys_ni_syscall	/* sys_modify_ldt */
-	.long sys_adjtimex
-	.long sys_mprotect		/* 125 */
-	.long sys_sigprocmask
-	.long sys_ni_syscall		/* old "create_module" */
-	.long sys_init_module
-	.long sys_delete_module
-	.long sys_ni_syscall		/* 130: old "get_kernel_syms" */
-	.long sys_quotactl
-	.long sys_getpgid
-	.long sys_fchdir
-	.long sys_bdflush
-	.long sys_sysfs			/* 135 */
-	.long sys_personality
-	.long sys_ni_syscall	/* for afs_syscall */
-	.long sys_setfsuid16
-	.long sys_setfsgid16
-	.long sys_llseek		/* 140 */
-	.long sys_getdents
-	.long sys_select
-	.long sys_flock
-	.long sys_msync
-	.long sys_readv			/* 145 */
-	.long sys_writev
-	.long sys_getsid
-	.long sys_fdatasync
-	.long sys_sysctl
-	.long sys_mlock			/* 150 */
-	.long sys_munlock
-	.long sys_mlockall
-	.long sys_munlockall
-	.long sys_sched_setparam
-	.long sys_sched_getparam	/* 155 */
-	.long sys_sched_setscheduler
-	.long sys_sched_getscheduler
-	.long sys_sched_yield
-	.long sys_sched_get_priority_max
-	.long sys_sched_get_priority_min  /* 160 */
-	.long sys_sched_rr_get_interval
-	.long sys_nanosleep
-	.long sys_mremap
-	.long sys_setresuid16
-	.long sys_getresuid16		/* 165 */
-	.long sys_ni_syscall	/* vm86 */
-	.long sys_ni_syscall	/* old "query_module" */
-	.long sys_poll
-	.long sys_nfsservctl
-	.long sys_setresgid16		/* 170 */
-	.long sys_getresgid16
-	.long sys_prctl
-	.long sys_rt_sigreturn
-	.long sys_rt_sigaction
-	.long sys_rt_sigprocmask	/* 175 */
-	.long sys_rt_sigpending
-	.long sys_rt_sigtimedwait
-	.long sys_rt_sigqueueinfo
-	.long sys_rt_sigsuspend
-	.long sys_pread64		/* 180 */
-	.long sys_pwrite64
-	.long sys_chown16
-	.long sys_getcwd
-	.long sys_capget
-	.long sys_capset		/* 185 */
-	.long sys_sigaltstack
-	.long sys_sendfile
-	.long sys_ni_syscall	/* streams1 */
-	.long sys_ni_syscall	/* streams2 */
-	.long sys_vfork			/* 190 */
-	.long sys_getrlimit
-	.long sys_mmap2
-	.long sys_truncate64
-	.long sys_ftruncate64
-	.long sys_stat64		/* 195 */
-	.long sys_lstat64
-	.long sys_fstat64
-	.long sys_lchown
-	.long sys_getuid
-	.long sys_getgid		/* 200 */
-	.long sys_geteuid
-	.long sys_getegid
-	.long sys_setreuid
-	.long sys_setregid
-	.long sys_getgroups		/* 205 */
-	.long sys_setgroups
-	.long sys_fchown
-	.long sys_setresuid
-	.long sys_getresuid
-	.long sys_setresgid		/* 210 */
-	.long sys_getresgid
-	.long sys_chown
-	.long sys_setuid
-	.long sys_setgid
-	.long sys_setfsuid		/* 215 */
-	.long sys_setfsgid
-	.long sys_pivot_root
-	.long sys_mincore
-	.long sys_madvise
-	/* Broken-out socket family (maintain backwards compatibility in syscall
-	   numbering with 2.4) */
-	.long sys_socket		/* 220 */
-	.long sys_bind
-	.long sys_connect
-	.long sys_listen
-	.long sys_accept
-	.long sys_getsockname		/* 225 */
-	.long sys_getpeername
-	.long sys_socketpair
-	.long sys_send
-	.long sys_sendto
-	.long sys_recv			/* 230*/
-	.long sys_recvfrom
-	.long sys_shutdown
-	.long sys_setsockopt
-	.long sys_getsockopt
-	.long sys_sendmsg		/* 235 */
-	.long sys_recvmsg
-	/* Broken-out IPC family (maintain backwards compatibility in syscall
-	   numbering with 2.4) */
-	.long sys_semop
-	.long sys_semget
-	.long sys_semctl
-	.long sys_msgsnd		/* 240 */
-	.long sys_msgrcv
-	.long sys_msgget
-	.long sys_msgctl
-	.long sys_shmat
-	.long sys_shmdt			/* 245 */
-	.long sys_shmget
-	.long sys_shmctl
-	/* Rest of syscalls listed in 2.4 i386 unistd.h */
-	.long sys_getdents64
-	.long sys_fcntl64
-	.long sys_ni_syscall		/* 250 reserved for TUX */
-	.long sys_ni_syscall		/* Reserved for Security */
-	.long sys_gettid
-	.long sys_readahead
-	.long sys_setxattr
-	.long sys_lsetxattr		/* 255 */
-	.long sys_fsetxattr
-	.long sys_getxattr
-	.long sys_lgetxattr
-	.long sys_fgetxattr
-	.long sys_listxattr		/* 260 */
-	.long sys_llistxattr
-	.long sys_flistxattr
-	.long sys_removexattr
-	.long sys_lremovexattr
-	.long sys_fremovexattr  	/* 265 */
-	.long sys_tkill
-	.long sys_sendfile64
-	.long sys_futex
-	.long sys_sched_setaffinity
-	.long sys_sched_getaffinity	/* 270 */
-	.long sys_ni_syscall
-	.long sys_ni_syscall
-	.long sys_io_setup
-	.long sys_io_destroy
-	.long sys_io_getevents		/* 275 */
-	.long sys_io_submit
-	.long sys_io_cancel
-	.long sys_fadvise64
-	.long sys_ni_syscall
-	.long sys_exit_group		/* 280 */
-	/* Rest of new 2.6 syscalls */
-	.long sys_lookup_dcookie
-	.long sys_epoll_create
-	.long sys_epoll_ctl
-	.long sys_epoll_wait
- 	.long sys_remap_file_pages	/* 285 */
- 	.long sys_set_tid_address
- 	.long sys_timer_create
- 	.long sys_timer_settime
- 	.long sys_timer_gettime
- 	.long sys_timer_getoverrun	/* 290 */
- 	.long sys_timer_delete
- 	.long sys_clock_settime
- 	.long sys_clock_gettime
- 	.long sys_clock_getres
- 	.long sys_clock_nanosleep	/* 295 */
-	.long sys_statfs64
-	.long sys_fstatfs64
-	.long sys_tgkill
-	.long sys_utimes
- 	.long sys_fadvise64_64		/* 300 */
-	.long sys_ni_syscall	/* Reserved for vserver */
-	.long sys_ni_syscall	/* Reserved for mbind */
-	.long sys_ni_syscall	/* get_mempolicy */
-	.long sys_ni_syscall	/* set_mempolicy */
-	.long sys_mq_open		/* 305 */
-	.long sys_mq_unlink
-	.long sys_mq_timedsend
-	.long sys_mq_timedreceive
-	.long sys_mq_notify
-	.long sys_mq_getsetattr		/* 310 */
-	.long sys_ni_syscall	/* Reserved for kexec */
-	.long sys_waitid
-	.long sys_add_key
-	.long sys_request_key
-	.long sys_keyctl		/* 315 */
-	.long sys_ioprio_set
-	.long sys_ioprio_get
-	.long sys_inotify_init
-	.long sys_inotify_add_watch
-	.long sys_inotify_rm_watch	/* 320 */
-	.long sys_ni_syscall
-	.long sys_migrate_pages
-	.long sys_openat
-	.long sys_mkdirat
-	.long sys_mknodat		/* 325 */
-	.long sys_fchownat
-	.long sys_futimesat
-	.long sys_fstatat64
-	.long sys_unlinkat
-	.long sys_renameat		/* 330 */
-	.long sys_linkat
-	.long sys_symlinkat
-	.long sys_readlinkat
-	.long sys_fchmodat
-	.long sys_faccessat		/* 335 */
-	.long sys_pselect6
-	.long sys_ppoll
-	.long sys_unshare
-	.long sys_set_robust_list
-	.long sys_get_robust_list	/* 340 */
-	.long sys_splice
-	.long sys_sync_file_range
-	.long sys_tee
-	.long sys_vmsplice
-	.long sys_move_pages		/* 345 */
-	.long sys_getcpu
-	.long sys_epoll_pwait
-	.long sys_utimensat
-	.long sys_signalfd
-	.long sys_timerfd		/* 350 */
-	.long sys_eventfd
-	.long sys_fallocate
diff --git a/include/asm-sh/unistd.h b/include/asm-sh/unistd.h
index b182b1cb05fd..4b21f369c28c 100644
--- a/include/asm-sh/unistd.h
+++ b/include/asm-sh/unistd.h
@@ -1,376 +1,5 @@
-#ifndef __ASM_SH_UNISTD_H
-#define __ASM_SH_UNISTD_H
-
-/*
- * Copyright (C) 1999  Niibe Yutaka
- */
-
-/*
- * This file contains the system call numbers.
- */
-
-#define __NR_restart_syscall	  0
-#define __NR_exit		  1
-#define __NR_fork		  2
-#define __NR_read		  3
-#define __NR_write		  4
-#define __NR_open		  5
-#define __NR_close		  6
-#define __NR_waitpid		  7
-#define __NR_creat		  8
-#define __NR_link		  9
-#define __NR_unlink		 10
-#define __NR_execve		 11
-#define __NR_chdir		 12
-#define __NR_time		 13
-#define __NR_mknod		 14
-#define __NR_chmod		 15
-#define __NR_lchown		 16
-#define __NR_break		 17
-#define __NR_oldstat		 18
-#define __NR_lseek		 19
-#define __NR_getpid		 20
-#define __NR_mount		 21
-#define __NR_umount		 22
-#define __NR_setuid		 23
-#define __NR_getuid		 24
-#define __NR_stime		 25
-#define __NR_ptrace		 26
-#define __NR_alarm		 27
-#define __NR_oldfstat		 28
-#define __NR_pause		 29
-#define __NR_utime		 30
-#define __NR_stty		 31
-#define __NR_gtty		 32
-#define __NR_access		 33
-#define __NR_nice		 34
-#define __NR_ftime		 35
-#define __NR_sync		 36
-#define __NR_kill		 37
-#define __NR_rename		 38
-#define __NR_mkdir		 39
-#define __NR_rmdir		 40
-#define __NR_dup		 41
-#define __NR_pipe		 42
-#define __NR_times		 43
-#define __NR_prof		 44
-#define __NR_brk		 45
-#define __NR_setgid		 46
-#define __NR_getgid		 47
-#define __NR_signal		 48
-#define __NR_geteuid		 49
-#define __NR_getegid		 50
-#define __NR_acct		 51
-#define __NR_umount2		 52
-#define __NR_lock		 53
-#define __NR_ioctl		 54
-#define __NR_fcntl		 55
-#define __NR_mpx		 56
-#define __NR_setpgid		 57
-#define __NR_ulimit		 58
-#define __NR_oldolduname	 59
-#define __NR_umask		 60
-#define __NR_chroot		 61
-#define __NR_ustat		 62
-#define __NR_dup2		 63
-#define __NR_getppid		 64
-#define __NR_getpgrp		 65
-#define __NR_setsid		 66
-#define __NR_sigaction		 67
-#define __NR_sgetmask		 68
-#define __NR_ssetmask		 69
-#define __NR_setreuid		 70
-#define __NR_setregid		 71
-#define __NR_sigsuspend		 72
-#define __NR_sigpending		 73
-#define __NR_sethostname	 74
-#define __NR_setrlimit		 75
-#define __NR_getrlimit		 76	/* Back compatible 2Gig limited rlimit */
-#define __NR_getrusage		 77
-#define __NR_gettimeofday	 78
-#define __NR_settimeofday	 79
-#define __NR_getgroups		 80
-#define __NR_setgroups		 81
-#define __NR_select		 82
-#define __NR_symlink		 83
-#define __NR_oldlstat		 84
-#define __NR_readlink		 85
-#define __NR_uselib		 86
-#define __NR_swapon		 87
-#define __NR_reboot		 88
-#define __NR_readdir		 89
-#define __NR_mmap		 90
-#define __NR_munmap		 91
-#define __NR_truncate		 92
-#define __NR_ftruncate		 93
-#define __NR_fchmod		 94
-#define __NR_fchown		 95
-#define __NR_getpriority	 96
-#define __NR_setpriority	 97
-#define __NR_profil		 98
-#define __NR_statfs		 99
-#define __NR_fstatfs		100
-#define __NR_ioperm		101
-#define __NR_socketcall		102
-#define __NR_syslog		103
-#define __NR_setitimer		104
-#define __NR_getitimer		105
-#define __NR_stat		106
-#define __NR_lstat		107
-#define __NR_fstat		108
-#define __NR_olduname		109
-#define __NR_iopl		110
-#define __NR_vhangup		111
-#define __NR_idle		112
-#define __NR_vm86old		113
-#define __NR_wait4		114
-#define __NR_swapoff		115
-#define __NR_sysinfo		116
-#define __NR_ipc		117
-#define __NR_fsync		118
-#define __NR_sigreturn		119
-#define __NR_clone		120
-#define __NR_setdomainname	121
-#define __NR_uname		122
-#define __NR_modify_ldt		123
-#define __NR_adjtimex		124
-#define __NR_mprotect		125
-#define __NR_sigprocmask	126
-#define __NR_create_module	127
-#define __NR_init_module	128
-#define __NR_delete_module	129
-#define __NR_get_kernel_syms	130
-#define __NR_quotactl		131
-#define __NR_getpgid		132
-#define __NR_fchdir		133
-#define __NR_bdflush		134
-#define __NR_sysfs		135
-#define __NR_personality	136
-#define __NR_afs_syscall	137 /* Syscall for Andrew File System */
-#define __NR_setfsuid		138
-#define __NR_setfsgid		139
-#define __NR__llseek		140
-#define __NR_getdents		141
-#define __NR__newselect		142
-#define __NR_flock		143
-#define __NR_msync		144
-#define __NR_readv		145
-#define __NR_writev		146
-#define __NR_getsid		147
-#define __NR_fdatasync		148
-#define __NR__sysctl		149
-#define __NR_mlock		150
-#define __NR_munlock		151
-#define __NR_mlockall		152
-#define __NR_munlockall		153
-#define __NR_sched_setparam		154
-#define __NR_sched_getparam		155
-#define __NR_sched_setscheduler		156
-#define __NR_sched_getscheduler		157
-#define __NR_sched_yield		158
-#define __NR_sched_get_priority_max	159
-#define __NR_sched_get_priority_min	160
-#define __NR_sched_rr_get_interval	161
-#define __NR_nanosleep		162
-#define __NR_mremap		163
-#define __NR_setresuid		164
-#define __NR_getresuid		165
-#define __NR_vm86		166
-#define __NR_query_module	167
-#define __NR_poll		168
-#define __NR_nfsservctl		169
-#define __NR_setresgid		170
-#define __NR_getresgid		171
-#define __NR_prctl              172
-#define __NR_rt_sigreturn	173
-#define __NR_rt_sigaction	174
-#define __NR_rt_sigprocmask	175
-#define __NR_rt_sigpending	176
-#define __NR_rt_sigtimedwait	177
-#define __NR_rt_sigqueueinfo	178
-#define __NR_rt_sigsuspend	179
-#define __NR_pread64		180
-#define __NR_pwrite64		181
-#define __NR_chown		182
-#define __NR_getcwd		183
-#define __NR_capget		184
-#define __NR_capset		185
-#define __NR_sigaltstack	186
-#define __NR_sendfile		187
-#define __NR_streams1		188	/* some people actually want it */
-#define __NR_streams2		189	/* some people actually want it */
-#define __NR_vfork		190
-#define __NR_ugetrlimit		191	/* SuS compliant getrlimit */
-#define __NR_mmap2		192
-#define __NR_truncate64		193
-#define __NR_ftruncate64	194
-#define __NR_stat64		195
-#define __NR_lstat64		196
-#define __NR_fstat64		197
-#define __NR_lchown32		198
-#define __NR_getuid32		199
-#define __NR_getgid32		200
-#define __NR_geteuid32		201
-#define __NR_getegid32		202
-#define __NR_setreuid32		203
-#define __NR_setregid32		204
-#define __NR_getgroups32	205
-#define __NR_setgroups32	206
-#define __NR_fchown32		207
-#define __NR_setresuid32	208
-#define __NR_getresuid32	209
-#define __NR_setresgid32	210
-#define __NR_getresgid32	211
-#define __NR_chown32		212
-#define __NR_setuid32		213
-#define __NR_setgid32		214
-#define __NR_setfsuid32		215
-#define __NR_setfsgid32		216
-#define __NR_pivot_root		217
-#define __NR_mincore		218
-#define __NR_madvise		219
-#define __NR_getdents64		220
-#define __NR_fcntl64		221
-/* 223 is unused */
-#define __NR_gettid		224
-#define __NR_readahead		225
-#define __NR_setxattr		226
-#define __NR_lsetxattr		227
-#define __NR_fsetxattr		228
-#define __NR_getxattr		229
-#define __NR_lgetxattr		230
-#define __NR_fgetxattr		231
-#define __NR_listxattr		232
-#define __NR_llistxattr		233
-#define __NR_flistxattr		234
-#define __NR_removexattr	235
-#define __NR_lremovexattr	236
-#define __NR_fremovexattr	237
-#define __NR_tkill		238
-#define __NR_sendfile64		239
-#define __NR_futex		240
-#define __NR_sched_setaffinity	241
-#define __NR_sched_getaffinity	242
-#define __NR_set_thread_area	243
-#define __NR_get_thread_area	244
-#define __NR_io_setup		245
-#define __NR_io_destroy		246
-#define __NR_io_getevents	247
-#define __NR_io_submit		248
-#define __NR_io_cancel		249
-#define __NR_fadvise64		250
-
-#define __NR_exit_group		252
-#define __NR_lookup_dcookie	253
-#define __NR_epoll_create	254
-#define __NR_epoll_ctl		255
-#define __NR_epoll_wait		256
-#define __NR_remap_file_pages	257
-#define __NR_set_tid_address	258
-#define __NR_timer_create	259
-#define __NR_timer_settime	(__NR_timer_create+1)
-#define __NR_timer_gettime	(__NR_timer_create+2)
-#define __NR_timer_getoverrun	(__NR_timer_create+3)
-#define __NR_timer_delete	(__NR_timer_create+4)
-#define __NR_clock_settime	(__NR_timer_create+5)
-#define __NR_clock_gettime	(__NR_timer_create+6)
-#define __NR_clock_getres	(__NR_timer_create+7)
-#define __NR_clock_nanosleep	(__NR_timer_create+8)
-#define __NR_statfs64		268
-#define __NR_fstatfs64		269
-#define __NR_tgkill		270
-#define __NR_utimes		271
-#define __NR_fadvise64_64	272
-#define __NR_vserver		273
-#define __NR_mbind              274
-#define __NR_get_mempolicy      275
-#define __NR_set_mempolicy      276
-#define __NR_mq_open            277
-#define __NR_mq_unlink          (__NR_mq_open+1)
-#define __NR_mq_timedsend       (__NR_mq_open+2)
-#define __NR_mq_timedreceive    (__NR_mq_open+3)
-#define __NR_mq_notify          (__NR_mq_open+4)
-#define __NR_mq_getsetattr      (__NR_mq_open+5)
-#define __NR_kexec_load		283
-#define __NR_waitid		284
-#define __NR_add_key		285
-#define __NR_request_key	286
-#define __NR_keyctl		287
-#define __NR_ioprio_set		288
-#define __NR_ioprio_get		289
-#define __NR_inotify_init	290
-#define __NR_inotify_add_watch	291
-#define __NR_inotify_rm_watch	292
-/* 293 is unused */
-#define __NR_migrate_pages	294
-#define __NR_openat		295
-#define __NR_mkdirat		296
-#define __NR_mknodat		297
-#define __NR_fchownat		298
-#define __NR_futimesat		299
-#define __NR_fstatat64		300
-#define __NR_unlinkat		301
-#define __NR_renameat		302
-#define __NR_linkat		303
-#define __NR_symlinkat		304
-#define __NR_readlinkat		305
-#define __NR_fchmodat		306
-#define __NR_faccessat		307
-#define __NR_pselect6		308
-#define __NR_ppoll		309
-#define __NR_unshare		310
-#define __NR_set_robust_list	311
-#define __NR_get_robust_list	312
-#define __NR_splice		313
-#define __NR_sync_file_range	314
-#define __NR_tee		315
-#define __NR_vmsplice		316
-#define __NR_move_pages		317
-#define __NR_getcpu		318
-#define __NR_epoll_pwait	319
-#define __NR_utimensat		320
-#define __NR_signalfd		321
-#define __NR_timerfd		322
-#define __NR_eventfd		323
-#define __NR_fallocate		324
-
-#define NR_syscalls 325
-
-#ifdef __KERNEL__
-
-#define __ARCH_WANT_IPC_PARSE_VERSION
-#define __ARCH_WANT_OLD_READDIR
-#define __ARCH_WANT_OLD_STAT
-#define __ARCH_WANT_STAT64
-#define __ARCH_WANT_SYS_ALARM
-#define __ARCH_WANT_SYS_GETHOSTNAME
-#define __ARCH_WANT_SYS_PAUSE
-#define __ARCH_WANT_SYS_SGETMASK
-#define __ARCH_WANT_SYS_SIGNAL
-#define __ARCH_WANT_SYS_TIME
-#define __ARCH_WANT_SYS_UTIME
-#define __ARCH_WANT_SYS_WAITPID
-#define __ARCH_WANT_SYS_SOCKETCALL
-#define __ARCH_WANT_SYS_FADVISE64
-#define __ARCH_WANT_SYS_GETPGRP
-#define __ARCH_WANT_SYS_LLSEEK
-#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT
-#define __ARCH_WANT_SYS_OLDUMOUNT
-#define __ARCH_WANT_SYS_SIGPENDING
-#define __ARCH_WANT_SYS_SIGPROCMASK
-#define __ARCH_WANT_SYS_RT_SIGACTION
-#define __ARCH_WANT_SYS_RT_SIGSUSPEND
-
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#ifndef cond_syscall
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
+#ifdef CONFIG_SUPERH32
+# include "unistd_32.h"
+#else
+# include "unistd_64.h"
 #endif
-
-#endif /* __KERNEL__ */
-#endif /* __ASM_SH_UNISTD_H */
diff --git a/include/asm-sh/unistd_32.h b/include/asm-sh/unistd_32.h
new file mode 100644
index 000000000000..b182b1cb05fd
--- /dev/null
+++ b/include/asm-sh/unistd_32.h
@@ -0,0 +1,376 @@
+#ifndef __ASM_SH_UNISTD_H
+#define __ASM_SH_UNISTD_H
+
+/*
+ * Copyright (C) 1999  Niibe Yutaka
+ */
+
+/*
+ * This file contains the system call numbers.
+ */
+
+#define __NR_restart_syscall	  0
+#define __NR_exit		  1
+#define __NR_fork		  2
+#define __NR_read		  3
+#define __NR_write		  4
+#define __NR_open		  5
+#define __NR_close		  6
+#define __NR_waitpid		  7
+#define __NR_creat		  8
+#define __NR_link		  9
+#define __NR_unlink		 10
+#define __NR_execve		 11
+#define __NR_chdir		 12
+#define __NR_time		 13
+#define __NR_mknod		 14
+#define __NR_chmod		 15
+#define __NR_lchown		 16
+#define __NR_break		 17
+#define __NR_oldstat		 18
+#define __NR_lseek		 19
+#define __NR_getpid		 20
+#define __NR_mount		 21
+#define __NR_umount		 22
+#define __NR_setuid		 23
+#define __NR_getuid		 24
+#define __NR_stime		 25
+#define __NR_ptrace		 26
+#define __NR_alarm		 27
+#define __NR_oldfstat		 28
+#define __NR_pause		 29
+#define __NR_utime		 30
+#define __NR_stty		 31
+#define __NR_gtty		 32
+#define __NR_access		 33
+#define __NR_nice		 34
+#define __NR_ftime		 35
+#define __NR_sync		 36
+#define __NR_kill		 37
+#define __NR_rename		 38
+#define __NR_mkdir		 39
+#define __NR_rmdir		 40
+#define __NR_dup		 41
+#define __NR_pipe		 42
+#define __NR_times		 43
+#define __NR_prof		 44
+#define __NR_brk		 45
+#define __NR_setgid		 46
+#define __NR_getgid		 47
+#define __NR_signal		 48
+#define __NR_geteuid		 49
+#define __NR_getegid		 50
+#define __NR_acct		 51
+#define __NR_umount2		 52
+#define __NR_lock		 53
+#define __NR_ioctl		 54
+#define __NR_fcntl		 55
+#define __NR_mpx		 56
+#define __NR_setpgid		 57
+#define __NR_ulimit		 58
+#define __NR_oldolduname	 59
+#define __NR_umask		 60
+#define __NR_chroot		 61
+#define __NR_ustat		 62
+#define __NR_dup2		 63
+#define __NR_getppid		 64
+#define __NR_getpgrp		 65
+#define __NR_setsid		 66
+#define __NR_sigaction		 67
+#define __NR_sgetmask		 68
+#define __NR_ssetmask		 69
+#define __NR_setreuid		 70
+#define __NR_setregid		 71
+#define __NR_sigsuspend		 72
+#define __NR_sigpending		 73
+#define __NR_sethostname	 74
+#define __NR_setrlimit		 75
+#define __NR_getrlimit		 76	/* Back compatible 2Gig limited rlimit */
+#define __NR_getrusage		 77
+#define __NR_gettimeofday	 78
+#define __NR_settimeofday	 79
+#define __NR_getgroups		 80
+#define __NR_setgroups		 81
+#define __NR_select		 82
+#define __NR_symlink		 83
+#define __NR_oldlstat		 84
+#define __NR_readlink		 85
+#define __NR_uselib		 86
+#define __NR_swapon		 87
+#define __NR_reboot		 88
+#define __NR_readdir		 89
+#define __NR_mmap		 90
+#define __NR_munmap		 91
+#define __NR_truncate		 92
+#define __NR_ftruncate		 93
+#define __NR_fchmod		 94
+#define __NR_fchown		 95
+#define __NR_getpriority	 96
+#define __NR_setpriority	 97
+#define __NR_profil		 98
+#define __NR_statfs		 99
+#define __NR_fstatfs		100
+#define __NR_ioperm		101
+#define __NR_socketcall		102
+#define __NR_syslog		103
+#define __NR_setitimer		104
+#define __NR_getitimer		105
+#define __NR_stat		106
+#define __NR_lstat		107
+#define __NR_fstat		108
+#define __NR_olduname		109
+#define __NR_iopl		110
+#define __NR_vhangup		111
+#define __NR_idle		112
+#define __NR_vm86old		113
+#define __NR_wait4		114
+#define __NR_swapoff		115
+#define __NR_sysinfo		116
+#define __NR_ipc		117
+#define __NR_fsync		118
+#define __NR_sigreturn		119
+#define __NR_clone		120
+#define __NR_setdomainname	121
+#define __NR_uname		122
+#define __NR_modify_ldt		123
+#define __NR_adjtimex		124
+#define __NR_mprotect		125
+#define __NR_sigprocmask	126
+#define __NR_create_module	127
+#define __NR_init_module	128
+#define __NR_delete_module	129
+#define __NR_get_kernel_syms	130
+#define __NR_quotactl		131
+#define __NR_getpgid		132
+#define __NR_fchdir		133
+#define __NR_bdflush		134
+#define __NR_sysfs		135
+#define __NR_personality	136
+#define __NR_afs_syscall	137 /* Syscall for Andrew File System */
+#define __NR_setfsuid		138
+#define __NR_setfsgid		139
+#define __NR__llseek		140
+#define __NR_getdents		141
+#define __NR__newselect		142
+#define __NR_flock		143
+#define __NR_msync		144
+#define __NR_readv		145
+#define __NR_writev		146
+#define __NR_getsid		147
+#define __NR_fdatasync		148
+#define __NR__sysctl		149
+#define __NR_mlock		150
+#define __NR_munlock		151
+#define __NR_mlockall		152
+#define __NR_munlockall		153
+#define __NR_sched_setparam		154
+#define __NR_sched_getparam		155
+#define __NR_sched_setscheduler		156
+#define __NR_sched_getscheduler		157
+#define __NR_sched_yield		158
+#define __NR_sched_get_priority_max	159
+#define __NR_sched_get_priority_min	160
+#define __NR_sched_rr_get_interval	161
+#define __NR_nanosleep		162
+#define __NR_mremap		163
+#define __NR_setresuid		164
+#define __NR_getresuid		165
+#define __NR_vm86		166
+#define __NR_query_module	167
+#define __NR_poll		168
+#define __NR_nfsservctl		169
+#define __NR_setresgid		170
+#define __NR_getresgid		171
+#define __NR_prctl              172
+#define __NR_rt_sigreturn	173
+#define __NR_rt_sigaction	174
+#define __NR_rt_sigprocmask	175
+#define __NR_rt_sigpending	176
+#define __NR_rt_sigtimedwait	177
+#define __NR_rt_sigqueueinfo	178
+#define __NR_rt_sigsuspend	179
+#define __NR_pread64		180
+#define __NR_pwrite64		181
+#define __NR_chown		182
+#define __NR_getcwd		183
+#define __NR_capget		184
+#define __NR_capset		185
+#define __NR_sigaltstack	186
+#define __NR_sendfile		187
+#define __NR_streams1		188	/* some people actually want it */
+#define __NR_streams2		189	/* some people actually want it */
+#define __NR_vfork		190
+#define __NR_ugetrlimit		191	/* SuS compliant getrlimit */
+#define __NR_mmap2		192
+#define __NR_truncate64		193
+#define __NR_ftruncate64	194
+#define __NR_stat64		195
+#define __NR_lstat64		196
+#define __NR_fstat64		197
+#define __NR_lchown32		198
+#define __NR_getuid32		199
+#define __NR_getgid32		200
+#define __NR_geteuid32		201
+#define __NR_getegid32		202
+#define __NR_setreuid32		203
+#define __NR_setregid32		204
+#define __NR_getgroups32	205
+#define __NR_setgroups32	206
+#define __NR_fchown32		207
+#define __NR_setresuid32	208
+#define __NR_getresuid32	209
+#define __NR_setresgid32	210
+#define __NR_getresgid32	211
+#define __NR_chown32		212
+#define __NR_setuid32		213
+#define __NR_setgid32		214
+#define __NR_setfsuid32		215
+#define __NR_setfsgid32		216
+#define __NR_pivot_root		217
+#define __NR_mincore		218
+#define __NR_madvise		219
+#define __NR_getdents64		220
+#define __NR_fcntl64		221
+/* 223 is unused */
+#define __NR_gettid		224
+#define __NR_readahead		225
+#define __NR_setxattr		226
+#define __NR_lsetxattr		227
+#define __NR_fsetxattr		228
+#define __NR_getxattr		229
+#define __NR_lgetxattr		230
+#define __NR_fgetxattr		231
+#define __NR_listxattr		232
+#define __NR_llistxattr		233
+#define __NR_flistxattr		234
+#define __NR_removexattr	235
+#define __NR_lremovexattr	236
+#define __NR_fremovexattr	237
+#define __NR_tkill		238
+#define __NR_sendfile64		239
+#define __NR_futex		240
+#define __NR_sched_setaffinity	241
+#define __NR_sched_getaffinity	242
+#define __NR_set_thread_area	243
+#define __NR_get_thread_area	244
+#define __NR_io_setup		245
+#define __NR_io_destroy		246
+#define __NR_io_getevents	247
+#define __NR_io_submit		248
+#define __NR_io_cancel		249
+#define __NR_fadvise64		250
+
+#define __NR_exit_group		252
+#define __NR_lookup_dcookie	253
+#define __NR_epoll_create	254
+#define __NR_epoll_ctl		255
+#define __NR_epoll_wait		256
+#define __NR_remap_file_pages	257
+#define __NR_set_tid_address	258
+#define __NR_timer_create	259
+#define __NR_timer_settime	(__NR_timer_create+1)
+#define __NR_timer_gettime	(__NR_timer_create+2)
+#define __NR_timer_getoverrun	(__NR_timer_create+3)
+#define __NR_timer_delete	(__NR_timer_create+4)
+#define __NR_clock_settime	(__NR_timer_create+5)
+#define __NR_clock_gettime	(__NR_timer_create+6)
+#define __NR_clock_getres	(__NR_timer_create+7)
+#define __NR_clock_nanosleep	(__NR_timer_create+8)
+#define __NR_statfs64		268
+#define __NR_fstatfs64		269
+#define __NR_tgkill		270
+#define __NR_utimes		271
+#define __NR_fadvise64_64	272
+#define __NR_vserver		273
+#define __NR_mbind              274
+#define __NR_get_mempolicy      275
+#define __NR_set_mempolicy      276
+#define __NR_mq_open            277
+#define __NR_mq_unlink          (__NR_mq_open+1)
+#define __NR_mq_timedsend       (__NR_mq_open+2)
+#define __NR_mq_timedreceive    (__NR_mq_open+3)
+#define __NR_mq_notify          (__NR_mq_open+4)
+#define __NR_mq_getsetattr      (__NR_mq_open+5)
+#define __NR_kexec_load		283
+#define __NR_waitid		284
+#define __NR_add_key		285
+#define __NR_request_key	286
+#define __NR_keyctl		287
+#define __NR_ioprio_set		288
+#define __NR_ioprio_get		289
+#define __NR_inotify_init	290
+#define __NR_inotify_add_watch	291
+#define __NR_inotify_rm_watch	292
+/* 293 is unused */
+#define __NR_migrate_pages	294
+#define __NR_openat		295
+#define __NR_mkdirat		296
+#define __NR_mknodat		297
+#define __NR_fchownat		298
+#define __NR_futimesat		299
+#define __NR_fstatat64		300
+#define __NR_unlinkat		301
+#define __NR_renameat		302
+#define __NR_linkat		303
+#define __NR_symlinkat		304
+#define __NR_readlinkat		305
+#define __NR_fchmodat		306
+#define __NR_faccessat		307
+#define __NR_pselect6		308
+#define __NR_ppoll		309
+#define __NR_unshare		310
+#define __NR_set_robust_list	311
+#define __NR_get_robust_list	312
+#define __NR_splice		313
+#define __NR_sync_file_range	314
+#define __NR_tee		315
+#define __NR_vmsplice		316
+#define __NR_move_pages		317
+#define __NR_getcpu		318
+#define __NR_epoll_pwait	319
+#define __NR_utimensat		320
+#define __NR_signalfd		321
+#define __NR_timerfd		322
+#define __NR_eventfd		323
+#define __NR_fallocate		324
+
+#define NR_syscalls 325
+
+#ifdef __KERNEL__
+
+#define __ARCH_WANT_IPC_PARSE_VERSION
+#define __ARCH_WANT_OLD_READDIR
+#define __ARCH_WANT_OLD_STAT
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_SGETMASK
+#define __ARCH_WANT_SYS_SIGNAL
+#define __ARCH_WANT_SYS_TIME
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_WAITPID
+#define __ARCH_WANT_SYS_SOCKETCALL
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+#define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
+
+/*
+ * "Conditional" syscalls
+ *
+ * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
+ * but it doesn't work on all toolchains, so we just do it by hand
+ */
+#ifndef cond_syscall
+#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
+#endif
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_SH_UNISTD_H */
diff --git a/include/asm-sh/unistd_64.h b/include/asm-sh/unistd_64.h
new file mode 100644
index 000000000000..1a5197f369b2
--- /dev/null
+++ b/include/asm-sh/unistd_64.h
@@ -0,0 +1,417 @@
+#ifndef __ASM_SH64_UNISTD_H
+#define __ASM_SH64_UNISTD_H
+
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * include/asm-sh64/unistd.h
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003 - 2007 Paul Mundt
+ * Copyright (C) 2004  Sean McGoogan
+ *
+ * This file contains the system call numbers.
+ *
+ */
+
+#define __NR_restart_syscall	  0
+#define __NR_exit		  1
+#define __NR_fork		  2
+#define __NR_read		  3
+#define __NR_write		  4
+#define __NR_open		  5
+#define __NR_close		  6
+#define __NR_waitpid		  7
+#define __NR_creat		  8
+#define __NR_link		  9
+#define __NR_unlink		 10
+#define __NR_execve		 11
+#define __NR_chdir		 12
+#define __NR_time		 13
+#define __NR_mknod		 14
+#define __NR_chmod		 15
+#define __NR_lchown		 16
+#define __NR_break		 17
+#define __NR_oldstat		 18
+#define __NR_lseek		 19
+#define __NR_getpid		 20
+#define __NR_mount		 21
+#define __NR_umount		 22
+#define __NR_setuid		 23
+#define __NR_getuid		 24
+#define __NR_stime		 25
+#define __NR_ptrace		 26
+#define __NR_alarm		 27
+#define __NR_oldfstat		 28
+#define __NR_pause		 29
+#define __NR_utime		 30
+#define __NR_stty		 31
+#define __NR_gtty		 32
+#define __NR_access		 33
+#define __NR_nice		 34
+#define __NR_ftime		 35
+#define __NR_sync		 36
+#define __NR_kill		 37
+#define __NR_rename		 38
+#define __NR_mkdir		 39
+#define __NR_rmdir		 40
+#define __NR_dup		 41
+#define __NR_pipe		 42
+#define __NR_times		 43
+#define __NR_prof		 44
+#define __NR_brk		 45
+#define __NR_setgid		 46
+#define __NR_getgid		 47
+#define __NR_signal		 48
+#define __NR_geteuid		 49
+#define __NR_getegid		 50
+#define __NR_acct		 51
+#define __NR_umount2		 52
+#define __NR_lock		 53
+#define __NR_ioctl		 54
+#define __NR_fcntl		 55
+#define __NR_mpx		 56
+#define __NR_setpgid		 57
+#define __NR_ulimit		 58
+#define __NR_oldolduname	 59
+#define __NR_umask		 60
+#define __NR_chroot		 61
+#define __NR_ustat		 62
+#define __NR_dup2		 63
+#define __NR_getppid		 64
+#define __NR_getpgrp		 65
+#define __NR_setsid		 66
+#define __NR_sigaction		 67
+#define __NR_sgetmask		 68
+#define __NR_ssetmask		 69
+#define __NR_setreuid		 70
+#define __NR_setregid		 71
+#define __NR_sigsuspend		 72
+#define __NR_sigpending		 73
+#define __NR_sethostname	 74
+#define __NR_setrlimit		 75
+#define __NR_getrlimit	 	 76	/* Back compatible 2Gig limited rlimit */
+#define __NR_getrusage		 77
+#define __NR_gettimeofday	 78
+#define __NR_settimeofday	 79
+#define __NR_getgroups		 80
+#define __NR_setgroups		 81
+#define __NR_select		 82
+#define __NR_symlink		 83
+#define __NR_oldlstat		 84
+#define __NR_readlink		 85
+#define __NR_uselib		 86
+#define __NR_swapon		 87
+#define __NR_reboot		 88
+#define __NR_readdir		 89
+#define __NR_mmap		 90
+#define __NR_munmap		 91
+#define __NR_truncate		 92
+#define __NR_ftruncate		 93
+#define __NR_fchmod		 94
+#define __NR_fchown		 95
+#define __NR_getpriority	 96
+#define __NR_setpriority	 97
+#define __NR_profil		 98
+#define __NR_statfs		 99
+#define __NR_fstatfs		100
+#define __NR_ioperm		101
+#define __NR_socketcall		102	/* old implementation of socket systemcall */
+#define __NR_syslog		103
+#define __NR_setitimer		104
+#define __NR_getitimer		105
+#define __NR_stat		106
+#define __NR_lstat		107
+#define __NR_fstat		108
+#define __NR_olduname		109
+#define __NR_iopl		110
+#define __NR_vhangup		111
+#define __NR_idle		112
+#define __NR_vm86old		113
+#define __NR_wait4		114
+#define __NR_swapoff		115
+#define __NR_sysinfo		116
+#define __NR_ipc		117
+#define __NR_fsync		118
+#define __NR_sigreturn		119
+#define __NR_clone		120
+#define __NR_setdomainname	121
+#define __NR_uname		122
+#define __NR_modify_ldt		123
+#define __NR_adjtimex		124
+#define __NR_mprotect		125
+#define __NR_sigprocmask	126
+#define __NR_create_module	127
+#define __NR_init_module	128
+#define __NR_delete_module	129
+#define __NR_get_kernel_syms	130
+#define __NR_quotactl		131
+#define __NR_getpgid		132
+#define __NR_fchdir		133
+#define __NR_bdflush		134
+#define __NR_sysfs		135
+#define __NR_personality	136
+#define __NR_afs_syscall	137 /* Syscall for Andrew File System */
+#define __NR_setfsuid		138
+#define __NR_setfsgid		139
+#define __NR__llseek		140
+#define __NR_getdents		141
+#define __NR__newselect		142
+#define __NR_flock		143
+#define __NR_msync		144
+#define __NR_readv		145
+#define __NR_writev		146
+#define __NR_getsid		147
+#define __NR_fdatasync		148
+#define __NR__sysctl		149
+#define __NR_mlock		150
+#define __NR_munlock		151
+#define __NR_mlockall		152
+#define __NR_munlockall		153
+#define __NR_sched_setparam		154
+#define __NR_sched_getparam		155
+#define __NR_sched_setscheduler		156
+#define __NR_sched_getscheduler		157
+#define __NR_sched_yield		158
+#define __NR_sched_get_priority_max	159
+#define __NR_sched_get_priority_min	160
+#define __NR_sched_rr_get_interval	161
+#define __NR_nanosleep		162
+#define __NR_mremap		163
+#define __NR_setresuid		164
+#define __NR_getresuid		165
+#define __NR_vm86		166
+#define __NR_query_module	167
+#define __NR_poll		168
+#define __NR_nfsservctl		169
+#define __NR_setresgid		170
+#define __NR_getresgid		171
+#define __NR_prctl              172
+#define __NR_rt_sigreturn	173
+#define __NR_rt_sigaction	174
+#define __NR_rt_sigprocmask	175
+#define __NR_rt_sigpending	176
+#define __NR_rt_sigtimedwait	177
+#define __NR_rt_sigqueueinfo	178
+#define __NR_rt_sigsuspend	179
+#define __NR_pread64		180
+#define __NR_pwrite64		181
+#define __NR_chown		182
+#define __NR_getcwd		183
+#define __NR_capget		184
+#define __NR_capset		185
+#define __NR_sigaltstack	186
+#define __NR_sendfile		187
+#define __NR_streams1		188	/* some people actually want it */
+#define __NR_streams2		189	/* some people actually want it */
+#define __NR_vfork		190
+#define __NR_ugetrlimit		191	/* SuS compliant getrlimit */
+#define __NR_mmap2		192
+#define __NR_truncate64		193
+#define __NR_ftruncate64	194
+#define __NR_stat64		195
+#define __NR_lstat64		196
+#define __NR_fstat64		197
+#define __NR_lchown32		198
+#define __NR_getuid32		199
+#define __NR_getgid32		200
+#define __NR_geteuid32		201
+#define __NR_getegid32		202
+#define __NR_setreuid32		203
+#define __NR_setregid32		204
+#define __NR_getgroups32	205
+#define __NR_setgroups32	206
+#define __NR_fchown32		207
+#define __NR_setresuid32	208
+#define __NR_getresuid32	209
+#define __NR_setresgid32	210
+#define __NR_getresgid32	211
+#define __NR_chown32		212
+#define __NR_setuid32		213
+#define __NR_setgid32		214
+#define __NR_setfsuid32		215
+#define __NR_setfsgid32		216
+#define __NR_pivot_root		217
+#define __NR_mincore		218
+#define __NR_madvise		219
+
+/* Non-multiplexed socket family */
+#define __NR_socket		220
+#define __NR_bind		221
+#define __NR_connect		222
+#define __NR_listen		223
+#define __NR_accept		224
+#define __NR_getsockname	225
+#define __NR_getpeername	226
+#define __NR_socketpair		227
+#define __NR_send		228
+#define __NR_sendto		229
+#define __NR_recv		230
+#define __NR_recvfrom		231
+#define __NR_shutdown		232
+#define __NR_setsockopt		233
+#define __NR_getsockopt		234
+#define __NR_sendmsg		235
+#define __NR_recvmsg		236
+
+/* Non-multiplexed IPC family */
+#define __NR_semop		237
+#define __NR_semget		238
+#define __NR_semctl		239
+#define __NR_msgsnd		240
+#define __NR_msgrcv		241
+#define __NR_msgget		242
+#define __NR_msgctl		243
+#if 0
+#define __NR_shmatcall		244
+#endif
+#define __NR_shmdt		245
+#define __NR_shmget		246
+#define __NR_shmctl		247
+
+#define __NR_getdents64		248
+#define __NR_fcntl64		249
+/* 223 is unused */
+#define __NR_gettid		252
+#define __NR_readahead		253
+#define __NR_setxattr		254
+#define __NR_lsetxattr		255
+#define __NR_fsetxattr		256
+#define __NR_getxattr		257
+#define __NR_lgetxattr		258
+#define __NR_fgetxattr		269
+#define __NR_listxattr		260
+#define __NR_llistxattr		261
+#define __NR_flistxattr		262
+#define __NR_removexattr	263
+#define __NR_lremovexattr	264
+#define __NR_fremovexattr	265
+#define __NR_tkill		266
+#define __NR_sendfile64		267
+#define __NR_futex		268
+#define __NR_sched_setaffinity	269
+#define __NR_sched_getaffinity	270
+#define __NR_set_thread_area	271
+#define __NR_get_thread_area	272
+#define __NR_io_setup		273
+#define __NR_io_destroy		274
+#define __NR_io_getevents	275
+#define __NR_io_submit		276
+#define __NR_io_cancel		277
+#define __NR_fadvise64		278
+#define __NR_exit_group		280
+
+#define __NR_lookup_dcookie	281
+#define __NR_epoll_create	282
+#define __NR_epoll_ctl		283
+#define __NR_epoll_wait		284
+#define __NR_remap_file_pages	285
+#define __NR_set_tid_address	286
+#define __NR_timer_create	287
+#define __NR_timer_settime	(__NR_timer_create+1)
+#define __NR_timer_gettime	(__NR_timer_create+2)
+#define __NR_timer_getoverrun	(__NR_timer_create+3)
+#define __NR_timer_delete	(__NR_timer_create+4)
+#define __NR_clock_settime	(__NR_timer_create+5)
+#define __NR_clock_gettime	(__NR_timer_create+6)
+#define __NR_clock_getres	(__NR_timer_create+7)
+#define __NR_clock_nanosleep	(__NR_timer_create+8)
+#define __NR_statfs64		296
+#define __NR_fstatfs64		297
+#define __NR_tgkill		298
+#define __NR_utimes		299
+#define __NR_fadvise64_64	300
+#define __NR_vserver		301
+#define __NR_mbind              302
+#define __NR_get_mempolicy      303
+#define __NR_set_mempolicy      304
+#define __NR_mq_open            305
+#define __NR_mq_unlink          (__NR_mq_open+1)
+#define __NR_mq_timedsend       (__NR_mq_open+2)
+#define __NR_mq_timedreceive    (__NR_mq_open+3)
+#define __NR_mq_notify          (__NR_mq_open+4)
+#define __NR_mq_getsetattr      (__NR_mq_open+5)
+#define __NR_kexec_load		311
+#define __NR_waitid		312
+#define __NR_add_key		313
+#define __NR_request_key	314
+#define __NR_keyctl		315
+#define __NR_ioprio_set		316
+#define __NR_ioprio_get		317
+#define __NR_inotify_init	318
+#define __NR_inotify_add_watch	319
+#define __NR_inotify_rm_watch	320
+/* 321 is unused */
+#define __NR_migrate_pages	322
+#define __NR_openat		323
+#define __NR_mkdirat		324
+#define __NR_mknodat		325
+#define __NR_fchownat		326
+#define __NR_futimesat		327
+#define __NR_fstatat64		328
+#define __NR_unlinkat		329
+#define __NR_renameat		330
+#define __NR_linkat		331
+#define __NR_symlinkat		332
+#define __NR_readlinkat		333
+#define __NR_fchmodat		334
+#define __NR_faccessat		335
+#define __NR_pselect6		336
+#define __NR_ppoll		337
+#define __NR_unshare		338
+#define __NR_set_robust_list	339
+#define __NR_get_robust_list	340
+#define __NR_splice		341
+#define __NR_sync_file_range	342
+#define __NR_tee		343
+#define __NR_vmsplice		344
+#define __NR_move_pages		345
+#define __NR_getcpu		346
+#define __NR_epoll_pwait	347
+#define __NR_utimensat		348
+#define __NR_signalfd		349
+#define __NR_timerfd		350
+#define __NR_eventfd		351
+#define __NR_fallocate		352
+
+#ifdef __KERNEL__
+
+#define NR_syscalls 353
+
+#define __ARCH_WANT_IPC_PARSE_VERSION
+#define __ARCH_WANT_OLD_READDIR
+#define __ARCH_WANT_OLD_STAT
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_SGETMASK
+#define __ARCH_WANT_SYS_SIGNAL
+#define __ARCH_WANT_SYS_TIME
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_WAITPID
+#define __ARCH_WANT_SYS_SOCKETCALL
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+#define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_SYS_RT_SIGACTION
+
+/*
+ * "Conditional" syscalls
+ *
+ * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
+ * but it doesn't work on all toolchains, so we just do it by hand
+ */
+#ifndef cond_syscall
+#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
+#endif
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_SH64_UNISTD_H */
diff --git a/include/asm-sh64/unistd.h b/include/asm-sh64/unistd.h
deleted file mode 100644
index 1a5197f369b2..000000000000
--- a/include/asm-sh64/unistd.h
+++ /dev/null
@@ -1,417 +0,0 @@
-#ifndef __ASM_SH64_UNISTD_H
-#define __ASM_SH64_UNISTD_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/unistd.h
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003 - 2007 Paul Mundt
- * Copyright (C) 2004  Sean McGoogan
- *
- * This file contains the system call numbers.
- *
- */
-
-#define __NR_restart_syscall	  0
-#define __NR_exit		  1
-#define __NR_fork		  2
-#define __NR_read		  3
-#define __NR_write		  4
-#define __NR_open		  5
-#define __NR_close		  6
-#define __NR_waitpid		  7
-#define __NR_creat		  8
-#define __NR_link		  9
-#define __NR_unlink		 10
-#define __NR_execve		 11
-#define __NR_chdir		 12
-#define __NR_time		 13
-#define __NR_mknod		 14
-#define __NR_chmod		 15
-#define __NR_lchown		 16
-#define __NR_break		 17
-#define __NR_oldstat		 18
-#define __NR_lseek		 19
-#define __NR_getpid		 20
-#define __NR_mount		 21
-#define __NR_umount		 22
-#define __NR_setuid		 23
-#define __NR_getuid		 24
-#define __NR_stime		 25
-#define __NR_ptrace		 26
-#define __NR_alarm		 27
-#define __NR_oldfstat		 28
-#define __NR_pause		 29
-#define __NR_utime		 30
-#define __NR_stty		 31
-#define __NR_gtty		 32
-#define __NR_access		 33
-#define __NR_nice		 34
-#define __NR_ftime		 35
-#define __NR_sync		 36
-#define __NR_kill		 37
-#define __NR_rename		 38
-#define __NR_mkdir		 39
-#define __NR_rmdir		 40
-#define __NR_dup		 41
-#define __NR_pipe		 42
-#define __NR_times		 43
-#define __NR_prof		 44
-#define __NR_brk		 45
-#define __NR_setgid		 46
-#define __NR_getgid		 47
-#define __NR_signal		 48
-#define __NR_geteuid		 49
-#define __NR_getegid		 50
-#define __NR_acct		 51
-#define __NR_umount2		 52
-#define __NR_lock		 53
-#define __NR_ioctl		 54
-#define __NR_fcntl		 55
-#define __NR_mpx		 56
-#define __NR_setpgid		 57
-#define __NR_ulimit		 58
-#define __NR_oldolduname	 59
-#define __NR_umask		 60
-#define __NR_chroot		 61
-#define __NR_ustat		 62
-#define __NR_dup2		 63
-#define __NR_getppid		 64
-#define __NR_getpgrp		 65
-#define __NR_setsid		 66
-#define __NR_sigaction		 67
-#define __NR_sgetmask		 68
-#define __NR_ssetmask		 69
-#define __NR_setreuid		 70
-#define __NR_setregid		 71
-#define __NR_sigsuspend		 72
-#define __NR_sigpending		 73
-#define __NR_sethostname	 74
-#define __NR_setrlimit		 75
-#define __NR_getrlimit	 	 76	/* Back compatible 2Gig limited rlimit */
-#define __NR_getrusage		 77
-#define __NR_gettimeofday	 78
-#define __NR_settimeofday	 79
-#define __NR_getgroups		 80
-#define __NR_setgroups		 81
-#define __NR_select		 82
-#define __NR_symlink		 83
-#define __NR_oldlstat		 84
-#define __NR_readlink		 85
-#define __NR_uselib		 86
-#define __NR_swapon		 87
-#define __NR_reboot		 88
-#define __NR_readdir		 89
-#define __NR_mmap		 90
-#define __NR_munmap		 91
-#define __NR_truncate		 92
-#define __NR_ftruncate		 93
-#define __NR_fchmod		 94
-#define __NR_fchown		 95
-#define __NR_getpriority	 96
-#define __NR_setpriority	 97
-#define __NR_profil		 98
-#define __NR_statfs		 99
-#define __NR_fstatfs		100
-#define __NR_ioperm		101
-#define __NR_socketcall		102	/* old implementation of socket systemcall */
-#define __NR_syslog		103
-#define __NR_setitimer		104
-#define __NR_getitimer		105
-#define __NR_stat		106
-#define __NR_lstat		107
-#define __NR_fstat		108
-#define __NR_olduname		109
-#define __NR_iopl		110
-#define __NR_vhangup		111
-#define __NR_idle		112
-#define __NR_vm86old		113
-#define __NR_wait4		114
-#define __NR_swapoff		115
-#define __NR_sysinfo		116
-#define __NR_ipc		117
-#define __NR_fsync		118
-#define __NR_sigreturn		119
-#define __NR_clone		120
-#define __NR_setdomainname	121
-#define __NR_uname		122
-#define __NR_modify_ldt		123
-#define __NR_adjtimex		124
-#define __NR_mprotect		125
-#define __NR_sigprocmask	126
-#define __NR_create_module	127
-#define __NR_init_module	128
-#define __NR_delete_module	129
-#define __NR_get_kernel_syms	130
-#define __NR_quotactl		131
-#define __NR_getpgid		132
-#define __NR_fchdir		133
-#define __NR_bdflush		134
-#define __NR_sysfs		135
-#define __NR_personality	136
-#define __NR_afs_syscall	137 /* Syscall for Andrew File System */
-#define __NR_setfsuid		138
-#define __NR_setfsgid		139
-#define __NR__llseek		140
-#define __NR_getdents		141
-#define __NR__newselect		142
-#define __NR_flock		143
-#define __NR_msync		144
-#define __NR_readv		145
-#define __NR_writev		146
-#define __NR_getsid		147
-#define __NR_fdatasync		148
-#define __NR__sysctl		149
-#define __NR_mlock		150
-#define __NR_munlock		151
-#define __NR_mlockall		152
-#define __NR_munlockall		153
-#define __NR_sched_setparam		154
-#define __NR_sched_getparam		155
-#define __NR_sched_setscheduler		156
-#define __NR_sched_getscheduler		157
-#define __NR_sched_yield		158
-#define __NR_sched_get_priority_max	159
-#define __NR_sched_get_priority_min	160
-#define __NR_sched_rr_get_interval	161
-#define __NR_nanosleep		162
-#define __NR_mremap		163
-#define __NR_setresuid		164
-#define __NR_getresuid		165
-#define __NR_vm86		166
-#define __NR_query_module	167
-#define __NR_poll		168
-#define __NR_nfsservctl		169
-#define __NR_setresgid		170
-#define __NR_getresgid		171
-#define __NR_prctl              172
-#define __NR_rt_sigreturn	173
-#define __NR_rt_sigaction	174
-#define __NR_rt_sigprocmask	175
-#define __NR_rt_sigpending	176
-#define __NR_rt_sigtimedwait	177
-#define __NR_rt_sigqueueinfo	178
-#define __NR_rt_sigsuspend	179
-#define __NR_pread64		180
-#define __NR_pwrite64		181
-#define __NR_chown		182
-#define __NR_getcwd		183
-#define __NR_capget		184
-#define __NR_capset		185
-#define __NR_sigaltstack	186
-#define __NR_sendfile		187
-#define __NR_streams1		188	/* some people actually want it */
-#define __NR_streams2		189	/* some people actually want it */
-#define __NR_vfork		190
-#define __NR_ugetrlimit		191	/* SuS compliant getrlimit */
-#define __NR_mmap2		192
-#define __NR_truncate64		193
-#define __NR_ftruncate64	194
-#define __NR_stat64		195
-#define __NR_lstat64		196
-#define __NR_fstat64		197
-#define __NR_lchown32		198
-#define __NR_getuid32		199
-#define __NR_getgid32		200
-#define __NR_geteuid32		201
-#define __NR_getegid32		202
-#define __NR_setreuid32		203
-#define __NR_setregid32		204
-#define __NR_getgroups32	205
-#define __NR_setgroups32	206
-#define __NR_fchown32		207
-#define __NR_setresuid32	208
-#define __NR_getresuid32	209
-#define __NR_setresgid32	210
-#define __NR_getresgid32	211
-#define __NR_chown32		212
-#define __NR_setuid32		213
-#define __NR_setgid32		214
-#define __NR_setfsuid32		215
-#define __NR_setfsgid32		216
-#define __NR_pivot_root		217
-#define __NR_mincore		218
-#define __NR_madvise		219
-
-/* Non-multiplexed socket family */
-#define __NR_socket		220
-#define __NR_bind		221
-#define __NR_connect		222
-#define __NR_listen		223
-#define __NR_accept		224
-#define __NR_getsockname	225
-#define __NR_getpeername	226
-#define __NR_socketpair		227
-#define __NR_send		228
-#define __NR_sendto		229
-#define __NR_recv		230
-#define __NR_recvfrom		231
-#define __NR_shutdown		232
-#define __NR_setsockopt		233
-#define __NR_getsockopt		234
-#define __NR_sendmsg		235
-#define __NR_recvmsg		236
-
-/* Non-multiplexed IPC family */
-#define __NR_semop		237
-#define __NR_semget		238
-#define __NR_semctl		239
-#define __NR_msgsnd		240
-#define __NR_msgrcv		241
-#define __NR_msgget		242
-#define __NR_msgctl		243
-#if 0
-#define __NR_shmatcall		244
-#endif
-#define __NR_shmdt		245
-#define __NR_shmget		246
-#define __NR_shmctl		247
-
-#define __NR_getdents64		248
-#define __NR_fcntl64		249
-/* 223 is unused */
-#define __NR_gettid		252
-#define __NR_readahead		253
-#define __NR_setxattr		254
-#define __NR_lsetxattr		255
-#define __NR_fsetxattr		256
-#define __NR_getxattr		257
-#define __NR_lgetxattr		258
-#define __NR_fgetxattr		269
-#define __NR_listxattr		260
-#define __NR_llistxattr		261
-#define __NR_flistxattr		262
-#define __NR_removexattr	263
-#define __NR_lremovexattr	264
-#define __NR_fremovexattr	265
-#define __NR_tkill		266
-#define __NR_sendfile64		267
-#define __NR_futex		268
-#define __NR_sched_setaffinity	269
-#define __NR_sched_getaffinity	270
-#define __NR_set_thread_area	271
-#define __NR_get_thread_area	272
-#define __NR_io_setup		273
-#define __NR_io_destroy		274
-#define __NR_io_getevents	275
-#define __NR_io_submit		276
-#define __NR_io_cancel		277
-#define __NR_fadvise64		278
-#define __NR_exit_group		280
-
-#define __NR_lookup_dcookie	281
-#define __NR_epoll_create	282
-#define __NR_epoll_ctl		283
-#define __NR_epoll_wait		284
-#define __NR_remap_file_pages	285
-#define __NR_set_tid_address	286
-#define __NR_timer_create	287
-#define __NR_timer_settime	(__NR_timer_create+1)
-#define __NR_timer_gettime	(__NR_timer_create+2)
-#define __NR_timer_getoverrun	(__NR_timer_create+3)
-#define __NR_timer_delete	(__NR_timer_create+4)
-#define __NR_clock_settime	(__NR_timer_create+5)
-#define __NR_clock_gettime	(__NR_timer_create+6)
-#define __NR_clock_getres	(__NR_timer_create+7)
-#define __NR_clock_nanosleep	(__NR_timer_create+8)
-#define __NR_statfs64		296
-#define __NR_fstatfs64		297
-#define __NR_tgkill		298
-#define __NR_utimes		299
-#define __NR_fadvise64_64	300
-#define __NR_vserver		301
-#define __NR_mbind              302
-#define __NR_get_mempolicy      303
-#define __NR_set_mempolicy      304
-#define __NR_mq_open            305
-#define __NR_mq_unlink          (__NR_mq_open+1)
-#define __NR_mq_timedsend       (__NR_mq_open+2)
-#define __NR_mq_timedreceive    (__NR_mq_open+3)
-#define __NR_mq_notify          (__NR_mq_open+4)
-#define __NR_mq_getsetattr      (__NR_mq_open+5)
-#define __NR_kexec_load		311
-#define __NR_waitid		312
-#define __NR_add_key		313
-#define __NR_request_key	314
-#define __NR_keyctl		315
-#define __NR_ioprio_set		316
-#define __NR_ioprio_get		317
-#define __NR_inotify_init	318
-#define __NR_inotify_add_watch	319
-#define __NR_inotify_rm_watch	320
-/* 321 is unused */
-#define __NR_migrate_pages	322
-#define __NR_openat		323
-#define __NR_mkdirat		324
-#define __NR_mknodat		325
-#define __NR_fchownat		326
-#define __NR_futimesat		327
-#define __NR_fstatat64		328
-#define __NR_unlinkat		329
-#define __NR_renameat		330
-#define __NR_linkat		331
-#define __NR_symlinkat		332
-#define __NR_readlinkat		333
-#define __NR_fchmodat		334
-#define __NR_faccessat		335
-#define __NR_pselect6		336
-#define __NR_ppoll		337
-#define __NR_unshare		338
-#define __NR_set_robust_list	339
-#define __NR_get_robust_list	340
-#define __NR_splice		341
-#define __NR_sync_file_range	342
-#define __NR_tee		343
-#define __NR_vmsplice		344
-#define __NR_move_pages		345
-#define __NR_getcpu		346
-#define __NR_epoll_pwait	347
-#define __NR_utimensat		348
-#define __NR_signalfd		349
-#define __NR_timerfd		350
-#define __NR_eventfd		351
-#define __NR_fallocate		352
-
-#ifdef __KERNEL__
-
-#define NR_syscalls 353
-
-#define __ARCH_WANT_IPC_PARSE_VERSION
-#define __ARCH_WANT_OLD_READDIR
-#define __ARCH_WANT_OLD_STAT
-#define __ARCH_WANT_STAT64
-#define __ARCH_WANT_SYS_ALARM
-#define __ARCH_WANT_SYS_GETHOSTNAME
-#define __ARCH_WANT_SYS_PAUSE
-#define __ARCH_WANT_SYS_SGETMASK
-#define __ARCH_WANT_SYS_SIGNAL
-#define __ARCH_WANT_SYS_TIME
-#define __ARCH_WANT_SYS_UTIME
-#define __ARCH_WANT_SYS_WAITPID
-#define __ARCH_WANT_SYS_SOCKETCALL
-#define __ARCH_WANT_SYS_FADVISE64
-#define __ARCH_WANT_SYS_GETPGRP
-#define __ARCH_WANT_SYS_LLSEEK
-#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT
-#define __ARCH_WANT_SYS_OLDUMOUNT
-#define __ARCH_WANT_SYS_SIGPENDING
-#define __ARCH_WANT_SYS_SIGPROCMASK
-#define __ARCH_WANT_SYS_RT_SIGACTION
-
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#ifndef cond_syscall
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-#endif
-
-#endif /* __KERNEL__ */
-#endif /* __ASM_SH64_UNISTD_H */
-- 
cgit v1.2.3-59-g8ed1b


From 49e6c3e7460a718242dc11b801811f0ac6892154 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 17:58:11 +0900
Subject: sh: Split out linker script to _32 and _64 variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/vmlinux.lds.S    | 139 +--------------------------------------
 arch/sh/kernel/vmlinux_32.lds.S | 138 +++++++++++++++++++++++++++++++++++++++
 arch/sh/kernel/vmlinux_64.lds.S | 139 +++++++++++++++++++++++++++++++++++++++
 arch/sh64/kernel/vmlinux.lds.S  | 140 ----------------------------------------
 4 files changed, 280 insertions(+), 276 deletions(-)
 create mode 100644 arch/sh/kernel/vmlinux_32.lds.S
 create mode 100644 arch/sh/kernel/vmlinux_64.lds.S
 delete mode 100644 arch/sh64/kernel/vmlinux.lds.S

(limited to 'arch')

diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S
index 0956fb3681a3..d7d4991f32af 100644
--- a/arch/sh/kernel/vmlinux.lds.S
+++ b/arch/sh/kernel/vmlinux.lds.S
@@ -1,138 +1,5 @@
-/*
- * ld script to make SuperH Linux kernel
- * Written by Niibe Yutaka
- */
-#include <asm/thread_info.h>
-#include <asm/cache.h>
-#include <asm-generic/vmlinux.lds.h>
-
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux")
+#ifdef CONFIG_SUPERH32
+# include "vmlinux_32.lds.S"
 #else
-OUTPUT_FORMAT("elf32-shbig-linux", "elf32-shbig-linux", "elf32-shbig-linux")
+# include "vmlinux_64.lds.S"
 #endif
-OUTPUT_ARCH(sh)
-ENTRY(_start)
-SECTIONS
-{
-	. = CONFIG_PAGE_OFFSET + CONFIG_MEMORY_START + CONFIG_ZERO_PAGE_OFFSET;
-	_text = .;			/* Text and read-only data */
-
-	.empty_zero_page : {
-		*(.empty_zero_page)
-	} = 0
-
-	.text : {
-		*(.text.head)
-		TEXT_TEXT
-		SCHED_TEXT
-		LOCK_TEXT
-		KPROBES_TEXT
-		*(.fixup)
-		*(.gnu.warning)
-	} = 0x0009
-
-	. = ALIGN(16);		/* Exception table */
-	__start___ex_table = .;
-	__ex_table : { *(__ex_table) }
-	__stop___ex_table = .;
-
-	_etext = .;			/* End of text section */
-
-	BUG_TABLE
-	NOTES
-	RO_DATA(PAGE_SIZE)
-
-	. = ALIGN(THREAD_SIZE);
-	.data : {			/* Data */
-		*(.data.init_task)
-
-		. = ALIGN(L1_CACHE_BYTES);
-		*(.data.cacheline_aligned)
-
-		. = ALIGN(L1_CACHE_BYTES);
-		*(.data.read_mostly)
-
-		. = ALIGN(PAGE_SIZE);
-		*(.data.page_aligned)
-
-		__nosave_begin = .;
-		*(.data.nosave)
-		. = ALIGN(PAGE_SIZE);
-		__nosave_end = .;
-
-		DATA_DATA
-		CONSTRUCTORS
-	}
-
-	_edata = .;			/* End of data section */
-
-	. = ALIGN(PAGE_SIZE);		/* Init code and data */
-	__init_begin = .;
-	_sinittext = .;
-	.init.text : { *(.init.text) }
-	_einittext = .;
-	.init.data : { *(.init.data) }
-
-	. = ALIGN(16);
-	__setup_start = .;
-	.init.setup : { *(.init.setup) }
-	__setup_end = .;
-
-	__initcall_start = .;
-	.initcall.init : {
-		INITCALLS
-	}
-	__initcall_end = .;
-	__con_initcall_start = .;
-	.con_initcall.init : { *(.con_initcall.init) }
-	__con_initcall_end = .;
-
-	SECURITY_INIT
-
-#ifdef CONFIG_BLK_DEV_INITRD
-	. = ALIGN(PAGE_SIZE);
-	__initramfs_start = .;
-	.init.ramfs : { *(.init.ramfs) }
-	__initramfs_end = .;
-#endif
-
-	. = ALIGN(4);
-	__machvec_start = .;
-	.machvec.init : { *(.machvec.init) }
-	__machvec_end = .;
-
-	PERCPU(PAGE_SIZE)
-
-	/*
-	 * .exit.text is discarded at runtime, not link time, to deal with
-	 * references from __bug_table
-	 */
-	.exit.text : { *(.exit.text) }
-	.exit.data : { *(.exit.data) }
-
-	. = ALIGN(PAGE_SIZE);
-	.bss : {
-		__init_end = .;
-		__bss_start = .;		/* BSS */
-		*(.bss.page_aligned)
-		*(.bss)
-		*(COMMON)
-		. = ALIGN(4);
-		_ebss = .;			/* uClinux MTD sucks */
-		_end = . ;
-	}
-
-	/*
-	 * When something in the kernel is NOT compiled as a module, the
-	 * module cleanup code and data are put into these segments. Both
-	 * can then be thrown away, as cleanup code is never called unless
-	 * it's a module.
-	 */
-	/DISCARD/ : {
-		*(.exitcall.exit)
-	}
-
-	STABS_DEBUG
-	DWARF_DEBUG
-}
diff --git a/arch/sh/kernel/vmlinux_32.lds.S b/arch/sh/kernel/vmlinux_32.lds.S
new file mode 100644
index 000000000000..0956fb3681a3
--- /dev/null
+++ b/arch/sh/kernel/vmlinux_32.lds.S
@@ -0,0 +1,138 @@
+/*
+ * ld script to make SuperH Linux kernel
+ * Written by Niibe Yutaka
+ */
+#include <asm/thread_info.h>
+#include <asm/cache.h>
+#include <asm-generic/vmlinux.lds.h>
+
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux")
+#else
+OUTPUT_FORMAT("elf32-shbig-linux", "elf32-shbig-linux", "elf32-shbig-linux")
+#endif
+OUTPUT_ARCH(sh)
+ENTRY(_start)
+SECTIONS
+{
+	. = CONFIG_PAGE_OFFSET + CONFIG_MEMORY_START + CONFIG_ZERO_PAGE_OFFSET;
+	_text = .;			/* Text and read-only data */
+
+	.empty_zero_page : {
+		*(.empty_zero_page)
+	} = 0
+
+	.text : {
+		*(.text.head)
+		TEXT_TEXT
+		SCHED_TEXT
+		LOCK_TEXT
+		KPROBES_TEXT
+		*(.fixup)
+		*(.gnu.warning)
+	} = 0x0009
+
+	. = ALIGN(16);		/* Exception table */
+	__start___ex_table = .;
+	__ex_table : { *(__ex_table) }
+	__stop___ex_table = .;
+
+	_etext = .;			/* End of text section */
+
+	BUG_TABLE
+	NOTES
+	RO_DATA(PAGE_SIZE)
+
+	. = ALIGN(THREAD_SIZE);
+	.data : {			/* Data */
+		*(.data.init_task)
+
+		. = ALIGN(L1_CACHE_BYTES);
+		*(.data.cacheline_aligned)
+
+		. = ALIGN(L1_CACHE_BYTES);
+		*(.data.read_mostly)
+
+		. = ALIGN(PAGE_SIZE);
+		*(.data.page_aligned)
+
+		__nosave_begin = .;
+		*(.data.nosave)
+		. = ALIGN(PAGE_SIZE);
+		__nosave_end = .;
+
+		DATA_DATA
+		CONSTRUCTORS
+	}
+
+	_edata = .;			/* End of data section */
+
+	. = ALIGN(PAGE_SIZE);		/* Init code and data */
+	__init_begin = .;
+	_sinittext = .;
+	.init.text : { *(.init.text) }
+	_einittext = .;
+	.init.data : { *(.init.data) }
+
+	. = ALIGN(16);
+	__setup_start = .;
+	.init.setup : { *(.init.setup) }
+	__setup_end = .;
+
+	__initcall_start = .;
+	.initcall.init : {
+		INITCALLS
+	}
+	__initcall_end = .;
+	__con_initcall_start = .;
+	.con_initcall.init : { *(.con_initcall.init) }
+	__con_initcall_end = .;
+
+	SECURITY_INIT
+
+#ifdef CONFIG_BLK_DEV_INITRD
+	. = ALIGN(PAGE_SIZE);
+	__initramfs_start = .;
+	.init.ramfs : { *(.init.ramfs) }
+	__initramfs_end = .;
+#endif
+
+	. = ALIGN(4);
+	__machvec_start = .;
+	.machvec.init : { *(.machvec.init) }
+	__machvec_end = .;
+
+	PERCPU(PAGE_SIZE)
+
+	/*
+	 * .exit.text is discarded at runtime, not link time, to deal with
+	 * references from __bug_table
+	 */
+	.exit.text : { *(.exit.text) }
+	.exit.data : { *(.exit.data) }
+
+	. = ALIGN(PAGE_SIZE);
+	.bss : {
+		__init_end = .;
+		__bss_start = .;		/* BSS */
+		*(.bss.page_aligned)
+		*(.bss)
+		*(COMMON)
+		. = ALIGN(4);
+		_ebss = .;			/* uClinux MTD sucks */
+		_end = . ;
+	}
+
+	/*
+	 * When something in the kernel is NOT compiled as a module, the
+	 * module cleanup code and data are put into these segments. Both
+	 * can then be thrown away, as cleanup code is never called unless
+	 * it's a module.
+	 */
+	/DISCARD/ : {
+		*(.exitcall.exit)
+	}
+
+	STABS_DEBUG
+	DWARF_DEBUG
+}
diff --git a/arch/sh/kernel/vmlinux_64.lds.S b/arch/sh/kernel/vmlinux_64.lds.S
new file mode 100644
index 000000000000..9e30775ffc2b
--- /dev/null
+++ b/arch/sh/kernel/vmlinux_64.lds.S
@@ -0,0 +1,139 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh5/vmlinux.lds.S
+ *
+ * ld script to make ST50 Linux kernel
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ * benedict.gaster@superh.com:	 2nd May 2002
+ *    Add definition of empty_zero_page to be the first page of kernel image.
+ *
+ * benedict.gaster@superh.com:	 3rd May 2002
+ *    Added support for ramdisk, removing statically linked romfs at the same time.
+ *
+ * lethal@linux-sh.org:          9th May 2003
+ *    Kill off GLOBAL_NAME() usage and other CDC-isms.
+ *
+ * lethal@linux-sh.org:         19th May 2003
+ *    Remove support for ancient toolchains.
+ */
+
+#include <asm/page.h>
+#include <asm/cache.h>
+#include <asm/thread_info.h>
+
+#define LOAD_OFFSET	CONFIG_CACHED_MEMORY_OFFSET
+#include <asm-generic/vmlinux.lds.h>
+
+OUTPUT_ARCH(sh:sh5)
+
+#define C_PHYS(x) AT (ADDR(x) - LOAD_OFFSET)
+
+ENTRY(__start)
+SECTIONS
+{
+  . = CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START + PAGE_SIZE;
+  _text = .;			/* Text and read-only data */
+  text = .;			/* Text and read-only data */
+
+  .empty_zero_page : C_PHYS(.empty_zero_page) {
+	*(.empty_zero_page)
+	} = 0
+
+  .text : C_PHYS(.text) {
+  	*(.text.head)
+	TEXT_TEXT
+	*(.text64)
+        *(.text..SHmedia32)
+	SCHED_TEXT
+	LOCK_TEXT
+	*(.fixup)
+	*(.gnu.warning)
+#ifdef CONFIG_LITTLE_ENDIAN
+	} = 0x6ff0fff0
+#else
+	} = 0xf0fff06f
+#endif
+
+  /* We likely want __ex_table to be Cache Line aligned */
+  . = ALIGN(L1_CACHE_BYTES);		/* Exception table */
+  __start___ex_table = .;
+  __ex_table : C_PHYS(__ex_table) { *(__ex_table) }
+  __stop___ex_table = .;
+
+  _etext = .;			/* End of text section */
+
+  NOTES 
+
+  RODATA
+
+  .data : C_PHYS(.data) {			/* Data */
+	DATA_DATA
+	CONSTRUCTORS
+	}
+
+  . = ALIGN(PAGE_SIZE);
+  .data.page_aligned : C_PHYS(.data.page_aligned) { *(.data.page_aligned) }
+
+  PERCPU(PAGE_SIZE)
+
+  . = ALIGN(L1_CACHE_BYTES);
+  .data.cacheline_aligned : C_PHYS(.data.cacheline_aligned) { *(.data.cacheline_aligned) }
+
+  _edata = .;			/* End of data section */
+
+  . = ALIGN(THREAD_SIZE);	/* init_task: structure size aligned */
+  .data.init_task : C_PHYS(.data.init_task) { *(.data.init_task) }
+
+  . = ALIGN(PAGE_SIZE);		/* Init code and data */
+  __init_begin = .;
+  _sinittext = .;
+  .init.text : C_PHYS(.init.text) { *(.init.text) }
+  _einittext = .;
+  .init.data : C_PHYS(.init.data) { *(.init.data) }
+  . = ALIGN(L1_CACHE_BYTES);	/* Better if Cache Line aligned */
+  __setup_start = .;
+  .init.setup : C_PHYS(.init.setup) { *(.init.setup) }
+  __setup_end = .;
+  __initcall_start = .;
+  .initcall.init : C_PHYS(.initcall.init) {
+	INITCALLS
+  }
+  __initcall_end = .;
+  __con_initcall_start = .;
+  .con_initcall.init : C_PHYS(.con_initcall.init) { *(.con_initcall.init) }
+  __con_initcall_end = .;
+  SECURITY_INIT
+
+#ifdef CONFIG_BLK_DEV_INITRD
+  __initramfs_start = .;
+  .init.ramfs : C_PHYS(.init.ramfs) { *(.init.ramfs) }
+  __initramfs_end = .;
+#endif
+
+  . = ALIGN(PAGE_SIZE);
+  __init_end = .;
+
+  /* Align to the biggest single data representation, head and tail */
+  . = ALIGN(8);
+  __bss_start = .;		/* BSS */
+  .bss : C_PHYS(.bss) {
+	*(.bss)
+	}
+  . = ALIGN(8);
+  _end = . ;
+
+  /* Sections to be discarded */
+  /DISCARD/ : {
+	*(.exit.text)
+	*(.exit.data)
+	*(.exitcall.exit)
+	}
+
+  STABS_DEBUG
+  DWARF_DEBUG
+}
diff --git a/arch/sh64/kernel/vmlinux.lds.S b/arch/sh64/kernel/vmlinux.lds.S
deleted file mode 100644
index f533a064da5f..000000000000
--- a/arch/sh64/kernel/vmlinux.lds.S
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh5/vmlinux.lds.S
- *
- * ld script to make ST50 Linux kernel
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- *
- * benedict.gaster@superh.com:	 2nd May 2002
- *    Add definition of empty_zero_page to be the first page of kernel image.
- *
- * benedict.gaster@superh.com:	 3rd May 2002
- *    Added support for ramdisk, removing statically linked romfs at the same time.
- *
- * lethal@linux-sh.org:          9th May 2003
- *    Kill off GLOBAL_NAME() usage and other CDC-isms.
- *
- * lethal@linux-sh.org:         19th May 2003
- *    Remove support for ancient toolchains.
- */
-
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/processor.h>
-#include <asm/thread_info.h>
-
-#define LOAD_OFFSET	CONFIG_CACHED_MEMORY_OFFSET
-#include <asm-generic/vmlinux.lds.h>
-
-OUTPUT_ARCH(sh:sh5)
-
-#define C_PHYS(x) AT (ADDR(x) - LOAD_OFFSET)
-
-ENTRY(__start)
-SECTIONS
-{
-  . = CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START + PAGE_SIZE;
-  _text = .;			/* Text and read-only data */
-  text = .;			/* Text and read-only data */
-
-  .empty_zero_page : C_PHYS(.empty_zero_page) {
-	*(.empty_zero_page)
-	} = 0
-
-  .text : C_PHYS(.text) {
-  	*(.text.head)
-	TEXT_TEXT
-	*(.text64)
-        *(.text..SHmedia32)
-	SCHED_TEXT
-	LOCK_TEXT
-	*(.fixup)
-	*(.gnu.warning)
-#ifdef CONFIG_LITTLE_ENDIAN
-	} = 0x6ff0fff0
-#else
-	} = 0xf0fff06f
-#endif
-
-  /* We likely want __ex_table to be Cache Line aligned */
-  . = ALIGN(L1_CACHE_BYTES);		/* Exception table */
-  __start___ex_table = .;
-  __ex_table : C_PHYS(__ex_table) { *(__ex_table) }
-  __stop___ex_table = .;
-
-  _etext = .;			/* End of text section */
-
-  NOTES 
-
-  RODATA
-
-  .data : C_PHYS(.data) {			/* Data */
-	DATA_DATA
-	CONSTRUCTORS
-	}
-
-  . = ALIGN(PAGE_SIZE);
-  .data.page_aligned : C_PHYS(.data.page_aligned) { *(.data.page_aligned) }
-
-  PERCPU(PAGE_SIZE)
-
-  . = ALIGN(L1_CACHE_BYTES);
-  .data.cacheline_aligned : C_PHYS(.data.cacheline_aligned) { *(.data.cacheline_aligned) }
-
-  _edata = .;			/* End of data section */
-
-  . = ALIGN(THREAD_SIZE);	/* init_task: structure size aligned */
-  .data.init_task : C_PHYS(.data.init_task) { *(.data.init_task) }
-
-  . = ALIGN(PAGE_SIZE);		/* Init code and data */
-  __init_begin = .;
-  _sinittext = .;
-  .init.text : C_PHYS(.init.text) { *(.init.text) }
-  _einittext = .;
-  .init.data : C_PHYS(.init.data) { *(.init.data) }
-  . = ALIGN(L1_CACHE_BYTES);	/* Better if Cache Line aligned */
-  __setup_start = .;
-  .init.setup : C_PHYS(.init.setup) { *(.init.setup) }
-  __setup_end = .;
-  __initcall_start = .;
-  .initcall.init : C_PHYS(.initcall.init) {
-	INITCALLS
-  }
-  __initcall_end = .;
-  __con_initcall_start = .;
-  .con_initcall.init : C_PHYS(.con_initcall.init) { *(.con_initcall.init) }
-  __con_initcall_end = .;
-  SECURITY_INIT
-
-#ifdef CONFIG_BLK_DEV_INITRD
-  __initramfs_start = .;
-  .init.ramfs : C_PHYS(.init.ramfs) { *(.init.ramfs) }
-  __initramfs_end = .;
-#endif
-
-  . = ALIGN(PAGE_SIZE);
-  __init_end = .;
-
-  /* Align to the biggest single data representation, head and tail */
-  . = ALIGN(8);
-  __bss_start = .;		/* BSS */
-  .bss : C_PHYS(.bss) {
-	*(.bss)
-	}
-  . = ALIGN(8);
-  _end = . ;
-
-  /* Sections to be discarded */
-  /DISCARD/ : {
-	*(.exit.text)
-	*(.exit.data)
-	*(.exitcall.exit)
-	}
-
-  STABS_DEBUG
-  DWARF_DEBUG
-}
-- 
cgit v1.2.3-59-g8ed1b


From 343ac72248d360f1fae72176aca1117be19189ec Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 18:11:18 +0900
Subject: sh: Move over the SH-5 entry.S.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/Makefile     |    6 +
 arch/sh/kernel/cpu/sh5/Makefile |    1 +
 arch/sh/kernel/cpu/sh5/entry.S  | 2100 ++++++++++++++++++++++++++++++++++++++
 arch/sh64/kernel/entry.S        | 2102 ---------------------------------------
 include/asm-sh/processor.h      |   17 +-
 5 files changed, 2119 insertions(+), 2107 deletions(-)
 create mode 100644 arch/sh/kernel/cpu/sh5/Makefile
 create mode 100644 arch/sh/kernel/cpu/sh5/entry.S
 delete mode 100644 arch/sh64/kernel/entry.S

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/Makefile b/arch/sh/kernel/cpu/Makefile
index d055a3ea6b4b..f471d242774e 100644
--- a/arch/sh/kernel/cpu/Makefile
+++ b/arch/sh/kernel/cpu/Makefile
@@ -6,8 +6,14 @@ obj-$(CONFIG_CPU_SH2)		= sh2/
 obj-$(CONFIG_CPU_SH2A)		= sh2a/
 obj-$(CONFIG_CPU_SH3)		= sh3/
 obj-$(CONFIG_CPU_SH4)		= sh4/
+obj-$(CONFIG_CPU_SH5)		= sh5/
+
+# Special cases for family ancestry.
+
 obj-$(CONFIG_CPU_SH4A)		+= sh4a/
 
+# Common interfaces.
+
 obj-$(CONFIG_UBC_WAKEUP)	+= ubc.o
 obj-$(CONFIG_SH_ADC)		+= adc.o
 
diff --git a/arch/sh/kernel/cpu/sh5/Makefile b/arch/sh/kernel/cpu/sh5/Makefile
new file mode 100644
index 000000000000..9778f9bdff3a
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh5/Makefile
@@ -0,0 +1 @@
+obj-y := entry.o
diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S
new file mode 100644
index 000000000000..2f505a7cb5f9
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh5/entry.S
@@ -0,0 +1,2100 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/kernel/entry.S
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2004, 2005  Paul Mundt
+ * Copyright (C) 2003, 2004 Richard Curnow
+ *
+ */
+#include <linux/errno.h>
+#include <linux/sys.h>
+#include <asm/cpu/registers.h>
+#include <asm/processor.h>
+#include <asm/unistd.h>
+#include <asm/thread_info.h>
+#include <asm/asm-offsets.h>
+
+/*
+ * SR fields.
+ */
+#define SR_ASID_MASK	0x00ff0000
+#define SR_FD_MASK	0x00008000
+#define SR_SS		0x08000000
+#define SR_BL		0x10000000
+#define SR_MD		0x40000000
+
+/*
+ * Event code.
+ */
+#define	EVENT_INTERRUPT		0
+#define	EVENT_FAULT_TLB		1
+#define	EVENT_FAULT_NOT_TLB	2
+#define	EVENT_DEBUG		3
+
+/* EXPEVT values */
+#define	RESET_CAUSE		0x20
+#define DEBUGSS_CAUSE		0x980
+
+/*
+ * Frame layout. Quad index.
+ */
+#define	FRAME_T(x)	FRAME_TBASE+(x*8)
+#define	FRAME_R(x)	FRAME_RBASE+(x*8)
+#define	FRAME_S(x)	FRAME_SBASE+(x*8)
+#define FSPC		0
+#define FSSR		1
+#define FSYSCALL_ID	2
+
+/* Arrange the save frame to be a multiple of 32 bytes long */
+#define FRAME_SBASE	0
+#define FRAME_RBASE	(FRAME_SBASE+(3*8))	/* SYSCALL_ID - SSR - SPC */
+#define FRAME_TBASE	(FRAME_RBASE+(63*8))	/* r0 - r62 */
+#define FRAME_PBASE	(FRAME_TBASE+(8*8))	/* tr0 -tr7 */
+#define	FRAME_SIZE	(FRAME_PBASE+(2*8))	/* pad0-pad1 */
+
+#define FP_FRAME_SIZE	FP_FRAME_BASE+(33*8)	/* dr0 - dr31 + fpscr */
+#define FP_FRAME_BASE	0
+
+#define	SAVED_R2	0*8
+#define	SAVED_R3	1*8
+#define	SAVED_R4	2*8
+#define	SAVED_R5	3*8
+#define	SAVED_R18	4*8
+#define	SAVED_R6	5*8
+#define	SAVED_TR0	6*8
+
+/* These are the registers saved in the TLB path that aren't saved in the first
+   level of the normal one. */
+#define	TLB_SAVED_R25	7*8
+#define	TLB_SAVED_TR1	8*8
+#define	TLB_SAVED_TR2	9*8
+#define	TLB_SAVED_TR3	10*8
+#define	TLB_SAVED_TR4	11*8
+/* Save R0/R1 : PT-migrating compiler currently dishounours -ffixed-r0 and -ffixed-r1 causing
+   breakage otherwise. */
+#define	TLB_SAVED_R0	12*8
+#define	TLB_SAVED_R1	13*8
+
+#define CLI()				\
+	getcon	SR, r6;			\
+	ori	r6, 0xf0, r6;		\
+	putcon	r6, SR;
+
+#define STI()				\
+	getcon	SR, r6;			\
+	andi	r6, ~0xf0, r6;		\
+	putcon	r6, SR;
+
+#ifdef CONFIG_PREEMPT
+#  define preempt_stop()	CLI()
+#else
+#  define preempt_stop()
+#  define resume_kernel		restore_all
+#endif
+
+	.section	.data, "aw"
+
+#define FAST_TLBMISS_STACK_CACHELINES 4
+#define FAST_TLBMISS_STACK_QUADWORDS (4*FAST_TLBMISS_STACK_CACHELINES)
+
+/* Register back-up area for all exceptions */
+	.balign	32
+	/* Allow for 16 quadwords to be pushed by fast tlbmiss handling
+	 * register saves etc. */
+	.fill FAST_TLBMISS_STACK_QUADWORDS, 8, 0x0
+/* This is 32 byte aligned by construction */
+/* Register back-up area for all exceptions */
+reg_save_area:
+	.quad	0
+	.quad	0
+	.quad	0
+	.quad	0
+
+	.quad	0
+	.quad	0
+	.quad	0
+	.quad	0
+
+	.quad	0
+	.quad	0
+	.quad	0
+	.quad	0
+
+	.quad	0
+	.quad   0
+
+/* Save area for RESVEC exceptions. We cannot use reg_save_area because of
+ * reentrancy. Note this area may be accessed via physical address.
+ * Align so this fits a whole single cache line, for ease of purging.
+ */
+	.balign 32,0,32
+resvec_save_area:
+	.quad	0
+	.quad	0
+	.quad	0
+	.quad	0
+	.quad	0
+	.balign 32,0,32
+
+/* Jump table of 3rd level handlers  */
+trap_jtable:
+	.long	do_exception_error		/* 0x000 */
+	.long	do_exception_error		/* 0x020 */
+	.long	tlb_miss_load				/* 0x040 */
+	.long	tlb_miss_store				/* 0x060 */
+	! ARTIFICIAL pseudo-EXPEVT setting
+	.long	do_debug_interrupt		/* 0x080 */
+	.long	tlb_miss_load				/* 0x0A0 */
+	.long	tlb_miss_store				/* 0x0C0 */
+	.long	do_address_error_load	/* 0x0E0 */
+	.long	do_address_error_store	/* 0x100 */
+#ifdef CONFIG_SH_FPU
+	.long	do_fpu_error		/* 0x120 */
+#else
+	.long	do_exception_error		/* 0x120 */
+#endif
+	.long	do_exception_error		/* 0x140 */
+	.long	system_call				/* 0x160 */
+	.long	do_reserved_inst		/* 0x180 */
+	.long	do_illegal_slot_inst	/* 0x1A0 */
+	.long	do_NMI			/* 0x1C0 */
+	.long	do_exception_error		/* 0x1E0 */
+	.rept 15
+		.long do_IRQ		/* 0x200 - 0x3C0 */
+	.endr
+	.long	do_exception_error		/* 0x3E0 */
+	.rept 32
+		.long do_IRQ		/* 0x400 - 0x7E0 */
+	.endr
+	.long	fpu_error_or_IRQA			/* 0x800 */
+	.long	fpu_error_or_IRQB			/* 0x820 */
+	.long	do_IRQ			/* 0x840 */
+	.long	do_IRQ			/* 0x860 */
+	.rept 6
+		.long do_exception_error	/* 0x880 - 0x920 */
+	.endr
+	.long	do_software_break_point	/* 0x940 */
+	.long	do_exception_error		/* 0x960 */
+	.long	do_single_step		/* 0x980 */
+
+	.rept 3
+		.long do_exception_error	/* 0x9A0 - 0x9E0 */
+	.endr
+	.long	do_IRQ			/* 0xA00 */
+	.long	do_IRQ			/* 0xA20 */
+	.long	itlb_miss_or_IRQ			/* 0xA40 */
+	.long	do_IRQ			/* 0xA60 */
+	.long	do_IRQ			/* 0xA80 */
+	.long	itlb_miss_or_IRQ			/* 0xAA0 */
+	.long	do_exception_error		/* 0xAC0 */
+	.long	do_address_error_exec	/* 0xAE0 */
+	.rept 8
+		.long do_exception_error	/* 0xB00 - 0xBE0 */
+	.endr
+	.rept 18
+		.long do_IRQ		/* 0xC00 - 0xE20 */
+	.endr
+
+	.section	.text64, "ax"
+
+/*
+ * --- Exception/Interrupt/Event Handling Section
+ */
+
+/*
+ * VBR and RESVEC blocks.
+ *
+ * First level handler for VBR-based exceptions.
+ *
+ * To avoid waste of space, align to the maximum text block size.
+ * This is assumed to be at most 128 bytes or 32 instructions.
+ * DO NOT EXCEED 32 instructions on the first level handlers !
+ *
+ * Also note that RESVEC is contained within the VBR block
+ * where the room left (1KB - TEXT_SIZE) allows placing
+ * the RESVEC block (at most 512B + TEXT_SIZE).
+ *
+ * So first (and only) level handler for RESVEC-based exceptions.
+ *
+ * Where the fault/interrupt is handled (not_a_tlb_miss, tlb_miss
+ * and interrupt) we are a lot tight with register space until
+ * saving onto the stack frame, which is done in handle_exception().
+ *
+ */
+
+#define	TEXT_SIZE 	128
+#define	BLOCK_SIZE 	1664 		/* Dynamic check, 13*128 */
+
+	.balign TEXT_SIZE
+LVBR_block:
+	.space	256, 0			/* Power-on class handler, */
+					/* not required here       */
+not_a_tlb_miss:
+	synco	/* TAKum03020 (but probably a good idea anyway.) */
+	/* Save original stack pointer into KCR1 */
+	putcon	SP, KCR1
+
+	/* Save other original registers into reg_save_area */
+        movi  reg_save_area, SP
+	st.q	SP, SAVED_R2, r2
+	st.q	SP, SAVED_R3, r3
+	st.q	SP, SAVED_R4, r4
+	st.q	SP, SAVED_R5, r5
+	st.q	SP, SAVED_R6, r6
+	st.q	SP, SAVED_R18, r18
+	gettr	tr0, r3
+	st.q	SP, SAVED_TR0, r3
+
+	/* Set args for Non-debug, Not a TLB miss class handler */
+	getcon	EXPEVT, r2
+	movi	ret_from_exception, r3
+	ori	r3, 1, r3
+	movi	EVENT_FAULT_NOT_TLB, r4
+	or	SP, ZERO, r5
+	getcon	KCR1, SP
+	pta	handle_exception, tr0
+	blink	tr0, ZERO
+
+	.balign 256
+	! VBR+0x200
+	nop
+	.balign 256
+	! VBR+0x300
+	nop
+	.balign 256
+	/*
+	 * Instead of the natural .balign 1024 place RESVEC here
+	 * respecting the final 1KB alignment.
+	 */
+	.balign TEXT_SIZE
+	/*
+	 * Instead of '.space 1024-TEXT_SIZE' place the RESVEC
+	 * block making sure the final alignment is correct.
+	 */
+tlb_miss:
+	synco	/* TAKum03020 (but probably a good idea anyway.) */
+	putcon	SP, KCR1
+	movi	reg_save_area, SP
+	/* SP is guaranteed 32-byte aligned. */
+	st.q	SP, TLB_SAVED_R0 , r0
+	st.q	SP, TLB_SAVED_R1 , r1
+	st.q	SP, SAVED_R2 , r2
+	st.q	SP, SAVED_R3 , r3
+	st.q	SP, SAVED_R4 , r4
+	st.q	SP, SAVED_R5 , r5
+	st.q	SP, SAVED_R6 , r6
+	st.q	SP, SAVED_R18, r18
+
+	/* Save R25 for safety; as/ld may want to use it to achieve the call to
+	 * the code in mm/tlbmiss.c */
+	st.q	SP, TLB_SAVED_R25, r25
+	gettr	tr0, r2
+	gettr	tr1, r3
+	gettr	tr2, r4
+	gettr	tr3, r5
+	gettr	tr4, r18
+	st.q	SP, SAVED_TR0 , r2
+	st.q	SP, TLB_SAVED_TR1 , r3
+	st.q	SP, TLB_SAVED_TR2 , r4
+	st.q	SP, TLB_SAVED_TR3 , r5
+	st.q	SP, TLB_SAVED_TR4 , r18
+
+	pt	do_fast_page_fault, tr0
+	getcon	SSR, r2
+	getcon	EXPEVT, r3
+	getcon	TEA, r4
+	shlri	r2, 30, r2
+	andi	r2, 1, r2	/* r2 = SSR.MD */
+	blink 	tr0, LINK
+
+	pt	fixup_to_invoke_general_handler, tr1
+
+	/* If the fast path handler fixed the fault, just drop through quickly
+	   to the restore code right away to return to the excepting context.
+	   */
+	beqi/u	r2, 0, tr1
+
+fast_tlb_miss_restore:
+	ld.q	SP, SAVED_TR0, r2
+	ld.q	SP, TLB_SAVED_TR1, r3
+	ld.q	SP, TLB_SAVED_TR2, r4
+
+	ld.q	SP, TLB_SAVED_TR3, r5
+	ld.q	SP, TLB_SAVED_TR4, r18
+
+	ptabs	r2, tr0
+	ptabs	r3, tr1
+	ptabs	r4, tr2
+	ptabs	r5, tr3
+	ptabs	r18, tr4
+
+	ld.q	SP, TLB_SAVED_R0, r0
+	ld.q	SP, TLB_SAVED_R1, r1
+	ld.q	SP, SAVED_R2, r2
+	ld.q	SP, SAVED_R3, r3
+	ld.q	SP, SAVED_R4, r4
+	ld.q	SP, SAVED_R5, r5
+	ld.q	SP, SAVED_R6, r6
+	ld.q	SP, SAVED_R18, r18
+	ld.q	SP, TLB_SAVED_R25, r25
+
+	getcon	KCR1, SP
+	rte
+	nop /* for safety, in case the code is run on sh5-101 cut1.x */
+
+fixup_to_invoke_general_handler:
+
+	/* OK, new method.  Restore stuff that's not expected to get saved into
+	   the 'first-level' reg save area, then just fall through to setting
+	   up the registers and calling the second-level handler. */
+
+	/* 2nd level expects r2,3,4,5,6,18,tr0 to be saved.  So we must restore
+	   r25,tr1-4 and save r6 to get into the right state.  */
+
+	ld.q	SP, TLB_SAVED_TR1, r3
+	ld.q	SP, TLB_SAVED_TR2, r4
+	ld.q	SP, TLB_SAVED_TR3, r5
+	ld.q	SP, TLB_SAVED_TR4, r18
+	ld.q	SP, TLB_SAVED_R25, r25
+
+	ld.q	SP, TLB_SAVED_R0, r0
+	ld.q	SP, TLB_SAVED_R1, r1
+
+	ptabs/u	r3, tr1
+	ptabs/u	r4, tr2
+	ptabs/u	r5, tr3
+	ptabs/u	r18, tr4
+
+	/* Set args for Non-debug, TLB miss class handler */
+	getcon	EXPEVT, r2
+	movi	ret_from_exception, r3
+	ori	r3, 1, r3
+	movi	EVENT_FAULT_TLB, r4
+	or	SP, ZERO, r5
+	getcon	KCR1, SP
+	pta	handle_exception, tr0
+	blink	tr0, ZERO
+
+/* NB TAKE GREAT CARE HERE TO ENSURE THAT THE INTERRUPT CODE
+   DOES END UP AT VBR+0x600 */
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+
+	.balign 256
+	/* VBR + 0x600 */
+
+interrupt:
+	synco	/* TAKum03020 (but probably a good idea anyway.) */
+	/* Save original stack pointer into KCR1 */
+	putcon	SP, KCR1
+
+	/* Save other original registers into reg_save_area */
+        movi  reg_save_area, SP
+	st.q	SP, SAVED_R2, r2
+	st.q	SP, SAVED_R3, r3
+	st.q	SP, SAVED_R4, r4
+	st.q	SP, SAVED_R5, r5
+	st.q	SP, SAVED_R6, r6
+	st.q	SP, SAVED_R18, r18
+	gettr	tr0, r3
+	st.q	SP, SAVED_TR0, r3
+
+	/* Set args for interrupt class handler */
+	getcon	INTEVT, r2
+	movi	ret_from_irq, r3
+	ori	r3, 1, r3
+	movi	EVENT_INTERRUPT, r4
+	or	SP, ZERO, r5
+	getcon	KCR1, SP
+	pta	handle_exception, tr0
+	blink	tr0, ZERO
+	.balign	TEXT_SIZE		/* let's waste the bare minimum */
+
+LVBR_block_end:				/* Marker. Used for total checking */
+
+	.balign 256
+LRESVEC_block:
+	/* Panic handler. Called with MMU off. Possible causes/actions:
+	 * - Reset:		Jump to program start.
+	 * - Single Step:	Turn off Single Step & return.
+	 * - Others:		Call panic handler, passing PC as arg.
+	 *			(this may need to be extended...)
+	 */
+reset_or_panic:
+	synco	/* TAKum03020 (but probably a good idea anyway.) */
+	putcon	SP, DCR
+	/* First save r0-1 and tr0, as we need to use these */
+	movi	resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
+	st.q	SP, 0, r0
+	st.q	SP, 8, r1
+	gettr	tr0, r0
+	st.q	SP, 32, r0
+
+	/* Check cause */
+	getcon	EXPEVT, r0
+	movi	RESET_CAUSE, r1
+	sub	r1, r0, r1		/* r1=0 if reset */
+	movi	_stext-CONFIG_CACHED_MEMORY_OFFSET, r0
+	ori	r0, 1, r0
+	ptabs	r0, tr0
+	beqi	r1, 0, tr0		/* Jump to start address if reset */
+
+	getcon	EXPEVT, r0
+	movi	DEBUGSS_CAUSE, r1
+	sub	r1, r0, r1		/* r1=0 if single step */
+	pta	single_step_panic, tr0
+	beqi	r1, 0, tr0		/* jump if single step */
+
+	/* Now jump to where we save the registers. */
+	movi	panic_stash_regs-CONFIG_CACHED_MEMORY_OFFSET, r1
+	ptabs	r1, tr0
+	blink	tr0, r63
+
+single_step_panic:
+	/* We are in a handler with Single Step set. We need to resume the
+	 * handler, by turning on MMU & turning off Single Step. */
+	getcon	SSR, r0
+	movi	SR_MMU, r1
+	or	r0, r1, r0
+	movi	~SR_SS, r1
+	and	r0, r1, r0
+	putcon	r0, SSR
+	/* Restore EXPEVT, as the rte won't do this */
+	getcon	PEXPEVT, r0
+	putcon	r0, EXPEVT
+	/* Restore regs */
+	ld.q	SP, 32, r0
+	ptabs	r0, tr0
+	ld.q	SP, 0, r0
+	ld.q	SP, 8, r1
+	getcon	DCR, SP
+	synco
+	rte
+
+
+	.balign	256
+debug_exception:
+	synco	/* TAKum03020 (but probably a good idea anyway.) */
+	/*
+	 * Single step/software_break_point first level handler.
+	 * Called with MMU off, so the first thing we do is enable it
+	 * by doing an rte with appropriate SSR.
+	 */
+	putcon	SP, DCR
+	/* Save SSR & SPC, together with R0 & R1, as we need to use 2 regs. */
+	movi	resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
+
+	/* With the MMU off, we are bypassing the cache, so purge any
+         * data that will be made stale by the following stores.
+         */
+	ocbp	SP, 0
+	synco
+
+	st.q	SP, 0, r0
+	st.q	SP, 8, r1
+	getcon	SPC, r0
+	st.q	SP, 16, r0
+	getcon	SSR, r0
+	st.q	SP, 24, r0
+
+	/* Enable MMU, block exceptions, set priv mode, disable single step */
+	movi	SR_MMU | SR_BL | SR_MD, r1
+	or	r0, r1, r0
+	movi	~SR_SS, r1
+	and	r0, r1, r0
+	putcon	r0, SSR
+	/* Force control to debug_exception_2 when rte is executed */
+	movi	debug_exeception_2, r0
+	ori	r0, 1, r0      /* force SHmedia, just in case */
+	putcon	r0, SPC
+	getcon	DCR, SP
+	synco
+	rte
+debug_exeception_2:
+	/* Restore saved regs */
+	putcon	SP, KCR1
+	movi	resvec_save_area, SP
+	ld.q	SP, 24, r0
+	putcon	r0, SSR
+	ld.q	SP, 16, r0
+	putcon	r0, SPC
+	ld.q	SP, 0, r0
+	ld.q	SP, 8, r1
+
+	/* Save other original registers into reg_save_area */
+        movi  reg_save_area, SP
+	st.q	SP, SAVED_R2, r2
+	st.q	SP, SAVED_R3, r3
+	st.q	SP, SAVED_R4, r4
+	st.q	SP, SAVED_R5, r5
+	st.q	SP, SAVED_R6, r6
+	st.q	SP, SAVED_R18, r18
+	gettr	tr0, r3
+	st.q	SP, SAVED_TR0, r3
+
+	/* Set args for debug class handler */
+	getcon	EXPEVT, r2
+	movi	ret_from_exception, r3
+	ori	r3, 1, r3
+	movi	EVENT_DEBUG, r4
+	or	SP, ZERO, r5
+	getcon	KCR1, SP
+	pta	handle_exception, tr0
+	blink	tr0, ZERO
+
+	.balign	256
+debug_interrupt:
+	/* !!! WE COME HERE IN REAL MODE !!! */
+	/* Hook-up debug interrupt to allow various debugging options to be
+	 * hooked into its handler. */
+	/* Save original stack pointer into KCR1 */
+	synco
+	putcon	SP, KCR1
+	movi	resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
+	ocbp	SP, 0
+	ocbp	SP, 32
+	synco
+
+	/* Save other original registers into reg_save_area thru real addresses */
+	st.q	SP, SAVED_R2, r2
+	st.q	SP, SAVED_R3, r3
+	st.q	SP, SAVED_R4, r4
+	st.q	SP, SAVED_R5, r5
+	st.q	SP, SAVED_R6, r6
+	st.q	SP, SAVED_R18, r18
+	gettr	tr0, r3
+	st.q	SP, SAVED_TR0, r3
+
+	/* move (spc,ssr)->(pspc,pssr).  The rte will shift
+	   them back again, so that they look like the originals
+	   as far as the real handler code is concerned. */
+	getcon	spc, r6
+	putcon	r6, pspc
+	getcon	ssr, r6
+	putcon	r6, pssr
+
+	! construct useful SR for handle_exception
+	movi	3, r6
+	shlli	r6, 30, r6
+	getcon	sr, r18
+	or	r18, r6, r6
+	putcon	r6, ssr
+
+	! SSR is now the current SR with the MD and MMU bits set
+	! i.e. the rte will switch back to priv mode and put
+	! the mmu back on
+
+	! construct spc
+	movi	handle_exception, r18
+	ori	r18, 1, r18		! for safety (do we need this?)
+	putcon	r18, spc
+
+	/* Set args for Non-debug, Not a TLB miss class handler */
+
+	! EXPEVT==0x80 is unused, so 'steal' this value to put the
+	! debug interrupt handler in the vectoring table
+	movi	0x80, r2
+	movi	ret_from_exception, r3
+	ori	r3, 1, r3
+	movi	EVENT_FAULT_NOT_TLB, r4
+
+	or	SP, ZERO, r5
+	movi	CONFIG_CACHED_MEMORY_OFFSET, r6
+	add	r6, r5, r5
+	getcon	KCR1, SP
+
+	synco	! for safety
+	rte	! -> handle_exception, switch back to priv mode again
+
+LRESVEC_block_end:			/* Marker. Unused. */
+
+	.balign	TEXT_SIZE
+
+/*
+ * Second level handler for VBR-based exceptions. Pre-handler.
+ * In common to all stack-frame sensitive handlers.
+ *
+ * Inputs:
+ * (KCR0) Current [current task union]
+ * (KCR1) Original SP
+ * (r2)   INTEVT/EXPEVT
+ * (r3)   appropriate return address
+ * (r4)   Event (0 = interrupt, 1 = TLB miss fault, 2 = Not TLB miss fault, 3=debug)
+ * (r5)   Pointer to reg_save_area
+ * (SP)   Original SP
+ *
+ * Available registers:
+ * (r6)
+ * (r18)
+ * (tr0)
+ *
+ */
+handle_exception:
+	/* Common 2nd level handler. */
+
+	/* First thing we need an appropriate stack pointer */
+	getcon	SSR, r6
+	shlri	r6, 30, r6
+	andi	r6, 1, r6
+	pta	stack_ok, tr0
+	bne	r6, ZERO, tr0		/* Original stack pointer is fine */
+
+	/* Set stack pointer for user fault */
+	getcon	KCR0, SP
+	movi	THREAD_SIZE, r6		/* Point to the end */
+	add	SP, r6, SP
+
+stack_ok:
+
+/* DEBUG : check for underflow/overflow of the kernel stack */
+	pta	no_underflow, tr0
+	getcon  KCR0, r6
+	movi	1024, r18
+	add	r6, r18, r6
+	bge	SP, r6, tr0 	! ? below 1k from bottom of stack : danger zone
+
+/* Just panic to cause a crash. */
+bad_sp:
+	ld.b	r63, 0, r6
+	nop
+
+no_underflow:
+	pta	bad_sp, tr0
+	getcon	kcr0, r6
+	movi	THREAD_SIZE, r18
+	add	r18, r6, r6
+	bgt	SP, r6, tr0	! sp above the stack
+
+	/* Make some room for the BASIC frame. */
+	movi	-(FRAME_SIZE), r6
+	add	SP, r6, SP
+
+/* Could do this with no stalling if we had another spare register, but the
+   code below will be OK. */
+	ld.q	r5, SAVED_R2, r6
+	ld.q	r5, SAVED_R3, r18
+	st.q	SP, FRAME_R(2), r6
+	ld.q	r5, SAVED_R4, r6
+	st.q	SP, FRAME_R(3), r18
+	ld.q	r5, SAVED_R5, r18
+	st.q	SP, FRAME_R(4), r6
+	ld.q	r5, SAVED_R6, r6
+	st.q	SP, FRAME_R(5), r18
+	ld.q	r5, SAVED_R18, r18
+	st.q	SP, FRAME_R(6), r6
+	ld.q	r5, SAVED_TR0, r6
+	st.q	SP, FRAME_R(18), r18
+	st.q	SP, FRAME_T(0), r6
+
+	/* Keep old SP around */
+	getcon	KCR1, r6
+
+	/* Save the rest of the general purpose registers */
+	st.q	SP, FRAME_R(0), r0
+	st.q	SP, FRAME_R(1), r1
+	st.q	SP, FRAME_R(7), r7
+	st.q	SP, FRAME_R(8), r8
+	st.q	SP, FRAME_R(9), r9
+	st.q	SP, FRAME_R(10), r10
+	st.q	SP, FRAME_R(11), r11
+	st.q	SP, FRAME_R(12), r12
+	st.q	SP, FRAME_R(13), r13
+	st.q	SP, FRAME_R(14), r14
+
+	/* SP is somewhere else */
+	st.q	SP, FRAME_R(15), r6
+
+	st.q	SP, FRAME_R(16), r16
+	st.q	SP, FRAME_R(17), r17
+	/* r18 is saved earlier. */
+	st.q	SP, FRAME_R(19), r19
+	st.q	SP, FRAME_R(20), r20
+	st.q	SP, FRAME_R(21), r21
+	st.q	SP, FRAME_R(22), r22
+	st.q	SP, FRAME_R(23), r23
+	st.q	SP, FRAME_R(24), r24
+	st.q	SP, FRAME_R(25), r25
+	st.q	SP, FRAME_R(26), r26
+	st.q	SP, FRAME_R(27), r27
+	st.q	SP, FRAME_R(28), r28
+	st.q	SP, FRAME_R(29), r29
+	st.q	SP, FRAME_R(30), r30
+	st.q	SP, FRAME_R(31), r31
+	st.q	SP, FRAME_R(32), r32
+	st.q	SP, FRAME_R(33), r33
+	st.q	SP, FRAME_R(34), r34
+	st.q	SP, FRAME_R(35), r35
+	st.q	SP, FRAME_R(36), r36
+	st.q	SP, FRAME_R(37), r37
+	st.q	SP, FRAME_R(38), r38
+	st.q	SP, FRAME_R(39), r39
+	st.q	SP, FRAME_R(40), r40
+	st.q	SP, FRAME_R(41), r41
+	st.q	SP, FRAME_R(42), r42
+	st.q	SP, FRAME_R(43), r43
+	st.q	SP, FRAME_R(44), r44
+	st.q	SP, FRAME_R(45), r45
+	st.q	SP, FRAME_R(46), r46
+	st.q	SP, FRAME_R(47), r47
+	st.q	SP, FRAME_R(48), r48
+	st.q	SP, FRAME_R(49), r49
+	st.q	SP, FRAME_R(50), r50
+	st.q	SP, FRAME_R(51), r51
+	st.q	SP, FRAME_R(52), r52
+	st.q	SP, FRAME_R(53), r53
+	st.q	SP, FRAME_R(54), r54
+	st.q	SP, FRAME_R(55), r55
+	st.q	SP, FRAME_R(56), r56
+	st.q	SP, FRAME_R(57), r57
+	st.q	SP, FRAME_R(58), r58
+	st.q	SP, FRAME_R(59), r59
+	st.q	SP, FRAME_R(60), r60
+	st.q	SP, FRAME_R(61), r61
+	st.q	SP, FRAME_R(62), r62
+
+	/*
+	 * Save the S* registers.
+	 */
+	getcon	SSR, r61
+	st.q	SP, FRAME_S(FSSR), r61
+	getcon	SPC, r62
+	st.q	SP, FRAME_S(FSPC), r62
+	movi	-1, r62			/* Reset syscall_nr */
+	st.q	SP, FRAME_S(FSYSCALL_ID), r62
+
+	/* Save the rest of the target registers */
+	gettr	tr1, r6
+	st.q	SP, FRAME_T(1), r6
+	gettr	tr2, r6
+	st.q	SP, FRAME_T(2), r6
+	gettr	tr3, r6
+	st.q	SP, FRAME_T(3), r6
+	gettr	tr4, r6
+	st.q	SP, FRAME_T(4), r6
+	gettr	tr5, r6
+	st.q	SP, FRAME_T(5), r6
+	gettr	tr6, r6
+	st.q	SP, FRAME_T(6), r6
+	gettr	tr7, r6
+	st.q	SP, FRAME_T(7), r6
+
+	! setup FP so that unwinder can wind back through nested kernel mode
+	! exceptions
+	add	SP, ZERO, r14
+
+#ifdef CONFIG_POOR_MANS_STRACE
+	/* We've pushed all the registers now, so only r2-r4 hold anything
+	 * useful. Move them into callee save registers */
+	or	r2, ZERO, r28
+	or	r3, ZERO, r29
+	or	r4, ZERO, r30
+
+	/* Preserve r2 as the event code */
+	movi	evt_debug, r3
+	ori	r3, 1, r3
+	ptabs	r3, tr0
+
+	or	SP, ZERO, r6
+	getcon	TRA, r5
+	blink	tr0, LINK
+
+	or	r28, ZERO, r2
+	or	r29, ZERO, r3
+	or	r30, ZERO, r4
+#endif
+
+	/* For syscall and debug race condition, get TRA now */
+	getcon	TRA, r5
+
+	/* We are in a safe position to turn SR.BL off, but set IMASK=0xf
+	 * Also set FD, to catch FPU usage in the kernel.
+	 *
+	 * benedict.gaster@superh.com 29/07/2002
+	 *
+	 * On all SH5-101 revisions it is unsafe to raise the IMASK and at the
+	 * same time change BL from 1->0, as any pending interrupt of a level
+	 * higher than he previous value of IMASK will leak through and be
+	 * taken unexpectedly.
+	 *
+	 * To avoid this we raise the IMASK and then issue another PUTCON to
+	 * enable interrupts.
+         */
+	getcon	SR, r6
+	movi	SR_IMASK | SR_FD, r7
+	or	r6, r7, r6
+	putcon	r6, SR
+	movi	SR_UNBLOCK_EXC, r7
+	and	r6, r7, r6
+	putcon	r6, SR
+
+
+	/* Now call the appropriate 3rd level handler */
+	or	r3, ZERO, LINK
+	movi	trap_jtable, r3
+	shlri	r2, 3, r2
+	ldx.l	r2, r3, r3
+	shlri	r2, 2, r2
+	ptabs	r3, tr0
+	or	SP, ZERO, r3
+	blink	tr0, ZERO
+
+/*
+ * Second level handler for VBR-based exceptions. Post-handlers.
+ *
+ * Post-handlers for interrupts (ret_from_irq), exceptions
+ * (ret_from_exception) and common reentrance doors (restore_all
+ * to get back to the original context, ret_from_syscall loop to
+ * check kernel exiting).
+ *
+ * ret_with_reschedule and work_notifysig are an inner lables of
+ * the ret_from_syscall loop.
+ *
+ * In common to all stack-frame sensitive handlers.
+ *
+ * Inputs:
+ * (SP)   struct pt_regs *, original register's frame pointer (basic)
+ *
+ */
+	.global ret_from_irq
+ret_from_irq:
+#ifdef CONFIG_POOR_MANS_STRACE
+	pta	evt_debug_ret_from_irq, tr0
+	ori	SP, 0, r2
+	blink	tr0, LINK
+#endif
+	ld.q	SP, FRAME_S(FSSR), r6
+	shlri	r6, 30, r6
+	andi	r6, 1, r6
+	pta	resume_kernel, tr0
+	bne	r6, ZERO, tr0		/* no further checks */
+	STI()
+	pta	ret_with_reschedule, tr0
+	blink	tr0, ZERO		/* Do not check softirqs */
+
+	.global ret_from_exception
+ret_from_exception:
+	preempt_stop()
+
+#ifdef CONFIG_POOR_MANS_STRACE
+	pta	evt_debug_ret_from_exc, tr0
+	ori	SP, 0, r2
+	blink	tr0, LINK
+#endif
+
+	ld.q	SP, FRAME_S(FSSR), r6
+	shlri	r6, 30, r6
+	andi	r6, 1, r6
+	pta	resume_kernel, tr0
+	bne	r6, ZERO, tr0		/* no further checks */
+
+	/* Check softirqs */
+
+#ifdef CONFIG_PREEMPT
+	pta   ret_from_syscall, tr0
+	blink   tr0, ZERO
+
+resume_kernel:
+	pta	restore_all, tr0
+
+	getcon	KCR0, r6
+	ld.l	r6, TI_PRE_COUNT, r7
+	beq/u	r7, ZERO, tr0
+
+need_resched:
+	ld.l	r6, TI_FLAGS, r7
+	movi	(1 << TIF_NEED_RESCHED), r8
+	and	r8, r7, r8
+	bne	r8, ZERO, tr0
+
+	getcon	SR, r7
+	andi	r7, 0xf0, r7
+	bne	r7, ZERO, tr0
+
+	movi	((PREEMPT_ACTIVE >> 16) & 65535), r8
+	shori	(PREEMPT_ACTIVE & 65535), r8
+	st.l	r6, TI_PRE_COUNT, r8
+
+	STI()
+	movi	schedule, r7
+	ori	r7, 1, r7
+	ptabs	r7, tr1
+	blink	tr1, LINK
+
+	st.l	r6, TI_PRE_COUNT, ZERO
+	CLI()
+
+	pta	need_resched, tr1
+	blink	tr1, ZERO
+#endif
+
+	.global ret_from_syscall
+ret_from_syscall:
+
+ret_with_reschedule:
+	getcon	KCR0, r6		! r6 contains current_thread_info
+	ld.l	r6, TI_FLAGS, r7	! r7 contains current_thread_info->flags
+
+	! FIXME:!!!
+	! no handling of TIF_SYSCALL_TRACE yet!!
+
+	movi	_TIF_NEED_RESCHED, r8
+	and	r8, r7, r8
+	pta	work_resched, tr0
+	bne	r8, ZERO, tr0
+
+	pta	restore_all, tr1
+
+	movi	(_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK), r8
+	and	r8, r7, r8
+	pta	work_notifysig, tr0
+	bne	r8, ZERO, tr0
+
+	blink	tr1, ZERO
+
+work_resched:
+	pta	ret_from_syscall, tr0
+	gettr	tr0, LINK
+	movi	schedule, r6
+	ptabs	r6, tr0
+	blink	tr0, ZERO		/* Call schedule(), return on top */
+
+work_notifysig:
+	gettr	tr1, LINK
+
+	movi	do_signal, r6
+	ptabs	r6, tr0
+	or	SP, ZERO, r2
+	or	ZERO, ZERO, r3
+	blink	tr0, LINK	    /* Call do_signal(regs, 0), return here */
+
+restore_all:
+	/* Do prefetches */
+
+	ld.q	SP, FRAME_T(0), r6
+	ld.q	SP, FRAME_T(1), r7
+	ld.q	SP, FRAME_T(2), r8
+	ld.q	SP, FRAME_T(3), r9
+	ptabs	r6, tr0
+	ptabs	r7, tr1
+	ptabs	r8, tr2
+	ptabs	r9, tr3
+	ld.q	SP, FRAME_T(4), r6
+	ld.q	SP, FRAME_T(5), r7
+	ld.q	SP, FRAME_T(6), r8
+	ld.q	SP, FRAME_T(7), r9
+	ptabs	r6, tr4
+	ptabs	r7, tr5
+	ptabs	r8, tr6
+	ptabs	r9, tr7
+
+	ld.q	SP, FRAME_R(0), r0
+	ld.q	SP, FRAME_R(1), r1
+	ld.q	SP, FRAME_R(2), r2
+	ld.q	SP, FRAME_R(3), r3
+	ld.q	SP, FRAME_R(4), r4
+	ld.q	SP, FRAME_R(5), r5
+	ld.q	SP, FRAME_R(6), r6
+	ld.q	SP, FRAME_R(7), r7
+	ld.q	SP, FRAME_R(8), r8
+	ld.q	SP, FRAME_R(9), r9
+	ld.q	SP, FRAME_R(10), r10
+	ld.q	SP, FRAME_R(11), r11
+	ld.q	SP, FRAME_R(12), r12
+	ld.q	SP, FRAME_R(13), r13
+	ld.q	SP, FRAME_R(14), r14
+
+	ld.q	SP, FRAME_R(16), r16
+	ld.q	SP, FRAME_R(17), r17
+	ld.q	SP, FRAME_R(18), r18
+	ld.q	SP, FRAME_R(19), r19
+	ld.q	SP, FRAME_R(20), r20
+	ld.q	SP, FRAME_R(21), r21
+	ld.q	SP, FRAME_R(22), r22
+	ld.q	SP, FRAME_R(23), r23
+	ld.q	SP, FRAME_R(24), r24
+	ld.q	SP, FRAME_R(25), r25
+	ld.q	SP, FRAME_R(26), r26
+	ld.q	SP, FRAME_R(27), r27
+	ld.q	SP, FRAME_R(28), r28
+	ld.q	SP, FRAME_R(29), r29
+	ld.q	SP, FRAME_R(30), r30
+	ld.q	SP, FRAME_R(31), r31
+	ld.q	SP, FRAME_R(32), r32
+	ld.q	SP, FRAME_R(33), r33
+	ld.q	SP, FRAME_R(34), r34
+	ld.q	SP, FRAME_R(35), r35
+	ld.q	SP, FRAME_R(36), r36
+	ld.q	SP, FRAME_R(37), r37
+	ld.q	SP, FRAME_R(38), r38
+	ld.q	SP, FRAME_R(39), r39
+	ld.q	SP, FRAME_R(40), r40
+	ld.q	SP, FRAME_R(41), r41
+	ld.q	SP, FRAME_R(42), r42
+	ld.q	SP, FRAME_R(43), r43
+	ld.q	SP, FRAME_R(44), r44
+	ld.q	SP, FRAME_R(45), r45
+	ld.q	SP, FRAME_R(46), r46
+	ld.q	SP, FRAME_R(47), r47
+	ld.q	SP, FRAME_R(48), r48
+	ld.q	SP, FRAME_R(49), r49
+	ld.q	SP, FRAME_R(50), r50
+	ld.q	SP, FRAME_R(51), r51
+	ld.q	SP, FRAME_R(52), r52
+	ld.q	SP, FRAME_R(53), r53
+	ld.q	SP, FRAME_R(54), r54
+	ld.q	SP, FRAME_R(55), r55
+	ld.q	SP, FRAME_R(56), r56
+	ld.q	SP, FRAME_R(57), r57
+	ld.q	SP, FRAME_R(58), r58
+
+	getcon	SR, r59
+	movi	SR_BLOCK_EXC, r60
+	or	r59, r60, r59
+	putcon	r59, SR			/* SR.BL = 1, keep nesting out */
+	ld.q	SP, FRAME_S(FSSR), r61
+	ld.q	SP, FRAME_S(FSPC), r62
+	movi	SR_ASID_MASK, r60
+	and	r59, r60, r59
+	andc	r61, r60, r61		/* Clear out older ASID */
+	or	r59, r61, r61		/* Retain current ASID */
+	putcon	r61, SSR
+	putcon	r62, SPC
+
+	/* Ignore FSYSCALL_ID */
+
+	ld.q	SP, FRAME_R(59), r59
+	ld.q	SP, FRAME_R(60), r60
+	ld.q	SP, FRAME_R(61), r61
+	ld.q	SP, FRAME_R(62), r62
+
+	/* Last touch */
+	ld.q	SP, FRAME_R(15), SP
+	rte
+	nop
+
+/*
+ * Third level handlers for VBR-based exceptions. Adapting args to
+ * and/or deflecting to fourth level handlers.
+ *
+ * Fourth level handlers interface.
+ * Most are C-coded handlers directly pointed by the trap_jtable.
+ * (Third = Fourth level)
+ * Inputs:
+ * (r2)   fault/interrupt code, entry number (e.g. NMI = 14,
+ *	  IRL0-3 (0000) = 16, RTLBMISS = 2, SYSCALL = 11, etc ...)
+ * (r3)   struct pt_regs *, original register's frame pointer
+ * (r4)   Event (0 = interrupt, 1 = TLB miss fault, 2 = Not TLB miss fault)
+ * (r5)   TRA control register (for syscall/debug benefit only)
+ * (LINK) return address
+ * (SP)   = r3
+ *
+ * Kernel TLB fault handlers will get a slightly different interface.
+ * (r2)   struct pt_regs *, original register's frame pointer
+ * (r3)   writeaccess, whether it's a store fault as opposed to load fault
+ * (r4)   execaccess, whether it's a ITLB fault as opposed to DTLB fault
+ * (r5)   Effective Address of fault
+ * (LINK) return address
+ * (SP)   = r2
+ *
+ * fpu_error_or_IRQ? is a helper to deflect to the right cause.
+ *
+ */
+tlb_miss_load:
+	or	SP, ZERO, r2
+	or	ZERO, ZERO, r3		/* Read */
+	or	ZERO, ZERO, r4		/* Data */
+	getcon	TEA, r5
+	pta	call_do_page_fault, tr0
+	beq	ZERO, ZERO, tr0
+
+tlb_miss_store:
+	or	SP, ZERO, r2
+	movi	1, r3			/* Write */
+	or	ZERO, ZERO, r4		/* Data */
+	getcon	TEA, r5
+	pta	call_do_page_fault, tr0
+	beq	ZERO, ZERO, tr0
+
+itlb_miss_or_IRQ:
+	pta	its_IRQ, tr0
+	beqi/u	r4, EVENT_INTERRUPT, tr0
+	or	SP, ZERO, r2
+	or	ZERO, ZERO, r3		/* Read */
+	movi	1, r4			/* Text */
+	getcon	TEA, r5
+	/* Fall through */
+
+call_do_page_fault:
+	movi	do_page_fault, r6
+        ptabs	r6, tr0
+        blink	tr0, ZERO
+
+fpu_error_or_IRQA:
+	pta	its_IRQ, tr0
+	beqi/l	r4, EVENT_INTERRUPT, tr0
+#ifdef CONFIG_SH_FPU
+	movi	do_fpu_state_restore, r6
+#else
+	movi	do_exception_error, r6
+#endif
+	ptabs	r6, tr0
+	blink	tr0, ZERO
+
+fpu_error_or_IRQB:
+	pta	its_IRQ, tr0
+	beqi/l	r4, EVENT_INTERRUPT, tr0
+#ifdef CONFIG_SH_FPU
+	movi	do_fpu_state_restore, r6
+#else
+	movi	do_exception_error, r6
+#endif
+	ptabs	r6, tr0
+	blink	tr0, ZERO
+
+its_IRQ:
+	movi	do_IRQ, r6
+	ptabs	r6, tr0
+	blink	tr0, ZERO
+
+/*
+ * system_call/unknown_trap third level handler:
+ *
+ * Inputs:
+ * (r2)   fault/interrupt code, entry number (TRAP = 11)
+ * (r3)   struct pt_regs *, original register's frame pointer
+ * (r4)   Not used. Event (0=interrupt, 1=TLB miss fault, 2=Not TLB miss fault)
+ * (r5)   TRA Control Reg (0x00xyzzzz: x=1 SYSCALL, y = #args, z=nr)
+ * (SP)   = r3
+ * (LINK) return address: ret_from_exception
+ * (*r3)  Syscall parms: SC#, arg0, arg1, ..., arg5 in order (Saved r2/r7)
+ *
+ * Outputs:
+ * (*r3)  Syscall reply (Saved r2)
+ * (LINK) In case of syscall only it can be scrapped.
+ *        Common second level post handler will be ret_from_syscall.
+ *        Common (non-trace) exit point to that is syscall_ret (saving
+ *        result to r2). Common bad exit point is syscall_bad (returning
+ *        ENOSYS then saved to r2).
+ *
+ */
+
+unknown_trap:
+	/* Unknown Trap or User Trace */
+	movi	do_unknown_trapa, r6
+	ptabs	r6, tr0
+        ld.q    r3, FRAME_R(9), r2	/* r2 = #arg << 16 | syscall # */
+        andi    r2, 0x1ff, r2		/* r2 = syscall # */
+	blink	tr0, LINK
+
+	pta	syscall_ret, tr0
+	blink	tr0, ZERO
+
+        /* New syscall implementation*/
+system_call:
+	pta	unknown_trap, tr0
+        or      r5, ZERO, r4            /* TRA (=r5) -> r4 */
+        shlri   r4, 20, r4
+	bnei	r4, 1, tr0		/* unknown_trap if not 0x1yzzzz */
+
+        /* It's a system call */
+	st.q    r3, FRAME_S(FSYSCALL_ID), r5 	/* ID (0x1yzzzz) -> stack */
+	andi    r5, 0x1ff, r5			/* syscall # -> r5	  */
+
+	STI()
+
+	pta	syscall_allowed, tr0
+	movi	NR_syscalls - 1, r4	/* Last valid */
+	bgeu/l	r4, r5, tr0
+
+syscall_bad:
+	/* Return ENOSYS ! */
+	movi	-(ENOSYS), r2		/* Fall-through */
+
+	.global syscall_ret
+syscall_ret:
+	st.q	SP, FRAME_R(9), r2	/* Expecting SP back to BASIC frame */
+
+#ifdef CONFIG_POOR_MANS_STRACE
+	/* nothing useful in registers at this point */
+
+	movi	evt_debug2, r5
+	ori	r5, 1, r5
+	ptabs	r5, tr0
+	ld.q	SP, FRAME_R(9), r2
+	or	SP, ZERO, r3
+	blink	tr0, LINK
+#endif
+
+	ld.q	SP, FRAME_S(FSPC), r2
+	addi	r2, 4, r2		/* Move PC, being pre-execution event */
+	st.q	SP, FRAME_S(FSPC), r2
+	pta	ret_from_syscall, tr0
+	blink	tr0, ZERO
+
+
+/*  A different return path for ret_from_fork, because we now need
+ *  to call schedule_tail with the later kernels. Because prev is
+ *  loaded into r2 by switch_to() means we can just call it straight  away
+ */
+
+.global	ret_from_fork
+ret_from_fork:
+
+	movi	schedule_tail,r5
+	ori	r5, 1, r5
+	ptabs	r5, tr0
+	blink	tr0, LINK
+
+#ifdef CONFIG_POOR_MANS_STRACE
+	/* nothing useful in registers at this point */
+
+	movi	evt_debug2, r5
+	ori	r5, 1, r5
+	ptabs	r5, tr0
+	ld.q	SP, FRAME_R(9), r2
+	or	SP, ZERO, r3
+	blink	tr0, LINK
+#endif
+
+	ld.q	SP, FRAME_S(FSPC), r2
+	addi	r2, 4, r2		/* Move PC, being pre-execution event */
+	st.q	SP, FRAME_S(FSPC), r2
+	pta	ret_from_syscall, tr0
+	blink	tr0, ZERO
+
+
+
+syscall_allowed:
+	/* Use LINK to deflect the exit point, default is syscall_ret */
+	pta	syscall_ret, tr0
+	gettr	tr0, LINK
+	pta	syscall_notrace, tr0
+
+	getcon	KCR0, r2
+	ld.l	r2, TI_FLAGS, r4
+	movi	(1 << TIF_SYSCALL_TRACE), r6
+	and	r6, r4, r6
+	beq/l	r6, ZERO, tr0
+
+	/* Trace it by calling syscall_trace before and after */
+	movi	syscall_trace, r4
+	ptabs	r4, tr0
+	blink	tr0, LINK
+	/* Reload syscall number as r5 is trashed by syscall_trace */
+	ld.q	SP, FRAME_S(FSYSCALL_ID), r5
+	andi	r5, 0x1ff, r5
+
+	pta	syscall_ret_trace, tr0
+	gettr	tr0, LINK
+
+syscall_notrace:
+	/* Now point to the appropriate 4th level syscall handler */
+	movi	sys_call_table, r4
+	shlli	r5, 2, r5
+	ldx.l	r4, r5, r5
+	ptabs	r5, tr0
+
+	/* Prepare original args */
+	ld.q	SP, FRAME_R(2), r2
+	ld.q	SP, FRAME_R(3), r3
+	ld.q	SP, FRAME_R(4), r4
+	ld.q	SP, FRAME_R(5), r5
+	ld.q	SP, FRAME_R(6), r6
+	ld.q	SP, FRAME_R(7), r7
+
+	/* And now the trick for those syscalls requiring regs * ! */
+	or	SP, ZERO, r8
+
+	/* Call it */
+	blink	tr0, ZERO	/* LINK is already properly set */
+
+syscall_ret_trace:
+	/* We get back here only if under trace */
+	st.q	SP, FRAME_R(9), r2	/* Save return value */
+
+	movi	syscall_trace, LINK
+	ptabs	LINK, tr0
+	blink	tr0, LINK
+
+	/* This needs to be done after any syscall tracing */
+	ld.q	SP, FRAME_S(FSPC), r2
+	addi	r2, 4, r2	/* Move PC, being pre-execution event */
+	st.q	SP, FRAME_S(FSPC), r2
+
+	pta	ret_from_syscall, tr0
+	blink	tr0, ZERO		/* Resume normal return sequence */
+
+/*
+ * --- Switch to running under a particular ASID and return the previous ASID value
+ * --- The caller is assumed to have done a cli before calling this.
+ *
+ * Input r2 : new ASID
+ * Output r2 : old ASID
+ */
+
+	.global switch_and_save_asid
+switch_and_save_asid:
+	getcon	sr, r0
+	movi	255, r4
+	shlli 	r4, 16, r4	/* r4 = mask to select ASID */
+	and	r0, r4, r3	/* r3 = shifted old ASID */
+	andi	r2, 255, r2	/* mask down new ASID */
+	shlli	r2, 16, r2	/* align new ASID against SR.ASID */
+	andc	r0, r4, r0	/* efface old ASID from SR */
+	or	r0, r2, r0	/* insert the new ASID */
+	putcon	r0, ssr
+	movi	1f, r0
+	putcon	r0, spc
+	rte
+	nop
+1:
+	ptabs	LINK, tr0
+	shlri	r3, 16, r2	/* r2 = old ASID */
+	blink tr0, r63
+
+	.global	route_to_panic_handler
+route_to_panic_handler:
+	/* Switch to real mode, goto panic_handler, don't return.  Useful for
+	   last-chance debugging, e.g. if no output wants to go to the console.
+	   */
+
+	movi	panic_handler - CONFIG_CACHED_MEMORY_OFFSET, r1
+	ptabs	r1, tr0
+	pta	1f, tr1
+	gettr	tr1, r0
+	putcon	r0, spc
+	getcon	sr, r0
+	movi	1, r1
+	shlli	r1, 31, r1
+	andc	r0, r1, r0
+	putcon	r0, ssr
+	rte
+	nop
+1:	/* Now in real mode */
+	blink tr0, r63
+	nop
+
+	.global peek_real_address_q
+peek_real_address_q:
+	/* Two args:
+	   r2 : real mode address to peek
+	   r2(out) : result quadword
+
+	   This is provided as a cheapskate way of manipulating device
+	   registers for debugging (to avoid the need to onchip_remap the debug
+	   module, and to avoid the need to onchip_remap the watchpoint
+	   controller in a way that identity maps sufficient bits to avoid the
+	   SH5-101 cut2 silicon defect).
+
+	   This code is not performance critical
+	*/
+
+	add.l	r2, r63, r2	/* sign extend address */
+	getcon	sr, r0		/* r0 = saved original SR */
+	movi	1, r1
+	shlli	r1, 28, r1
+	or	r0, r1, r1	/* r0 with block bit set */
+	putcon	r1, sr		/* now in critical section */
+	movi	1, r36
+	shlli	r36, 31, r36
+	andc	r1, r36, r1	/* turn sr.mmu off in real mode section */
+
+	putcon	r1, ssr
+	movi	.peek0 - CONFIG_CACHED_MEMORY_OFFSET, r36 /* real mode target address */
+	movi	1f, r37		/* virtual mode return addr */
+	putcon	r36, spc
+
+	synco
+	rte
+	nop
+
+.peek0:	/* come here in real mode, don't touch caches!!
+           still in critical section (sr.bl==1) */
+	putcon	r0, ssr
+	putcon	r37, spc
+	/* Here's the actual peek.  If the address is bad, all bets are now off
+	 * what will happen (handlers invoked in real-mode = bad news) */
+	ld.q	r2, 0, r2
+	synco
+	rte	/* Back to virtual mode */
+	nop
+
+1:
+	ptabs	LINK, tr0
+	blink	tr0, r63
+
+	.global poke_real_address_q
+poke_real_address_q:
+	/* Two args:
+	   r2 : real mode address to poke
+	   r3 : quadword value to write.
+
+	   This is provided as a cheapskate way of manipulating device
+	   registers for debugging (to avoid the need to onchip_remap the debug
+	   module, and to avoid the need to onchip_remap the watchpoint
+	   controller in a way that identity maps sufficient bits to avoid the
+	   SH5-101 cut2 silicon defect).
+
+	   This code is not performance critical
+	*/
+
+	add.l	r2, r63, r2	/* sign extend address */
+	getcon	sr, r0		/* r0 = saved original SR */
+	movi	1, r1
+	shlli	r1, 28, r1
+	or	r0, r1, r1	/* r0 with block bit set */
+	putcon	r1, sr		/* now in critical section */
+	movi	1, r36
+	shlli	r36, 31, r36
+	andc	r1, r36, r1	/* turn sr.mmu off in real mode section */
+
+	putcon	r1, ssr
+	movi	.poke0-CONFIG_CACHED_MEMORY_OFFSET, r36 /* real mode target address */
+	movi	1f, r37		/* virtual mode return addr */
+	putcon	r36, spc
+
+	synco
+	rte
+	nop
+
+.poke0:	/* come here in real mode, don't touch caches!!
+           still in critical section (sr.bl==1) */
+	putcon	r0, ssr
+	putcon	r37, spc
+	/* Here's the actual poke.  If the address is bad, all bets are now off
+	 * what will happen (handlers invoked in real-mode = bad news) */
+	st.q	r2, 0, r3
+	synco
+	rte	/* Back to virtual mode */
+	nop
+
+1:
+	ptabs	LINK, tr0
+	blink	tr0, r63
+
+/*
+ * --- User Access Handling Section
+ */
+
+/*
+ * User Access support. It all moved to non inlined Assembler
+ * functions in here.
+ *
+ * __kernel_size_t __copy_user(void *__to, const void *__from,
+ *			       __kernel_size_t __n)
+ *
+ * Inputs:
+ * (r2)  target address
+ * (r3)  source address
+ * (r4)  size in bytes
+ *
+ * Ouputs:
+ * (*r2) target data
+ * (r2)  non-copied bytes
+ *
+ * If a fault occurs on the user pointer, bail out early and return the
+ * number of bytes not copied in r2.
+ * Strategy : for large blocks, call a real memcpy function which can
+ * move >1 byte at a time using unaligned ld/st instructions, and can
+ * manipulate the cache using prefetch + alloco to improve the speed
+ * further.  If a fault occurs in that function, just revert to the
+ * byte-by-byte approach used for small blocks; this is rare so the
+ * performance hit for that case does not matter.
+ *
+ * For small blocks it's not worth the overhead of setting up and calling
+ * the memcpy routine; do the copy a byte at a time.
+ *
+ */
+	.global	__copy_user
+__copy_user:
+	pta	__copy_user_byte_by_byte, tr1
+	movi	16, r0 ! this value is a best guess, should tune it by benchmarking
+	bge/u	r0, r4, tr1
+	pta copy_user_memcpy, tr0
+	addi	SP, -32, SP
+	/* Save arguments in case we have to fix-up unhandled page fault */
+	st.q	SP, 0, r2
+	st.q	SP, 8, r3
+	st.q	SP, 16, r4
+	st.q	SP, 24, r35 ! r35 is callee-save
+	/* Save LINK in a register to reduce RTS time later (otherwise
+	   ld SP,*,LINK;ptabs LINK;trn;blink trn,r63 becomes a critical path) */
+	ori	LINK, 0, r35
+	blink	tr0, LINK
+
+	/* Copy completed normally if we get back here */
+	ptabs	r35, tr0
+	ld.q	SP, 24, r35
+	/* don't restore r2-r4, pointless */
+	/* set result=r2 to zero as the copy must have succeeded. */
+	or	r63, r63, r2
+	addi	SP, 32, SP
+	blink	tr0, r63 ! RTS
+
+	.global __copy_user_fixup
+__copy_user_fixup:
+	/* Restore stack frame */
+	ori	r35, 0, LINK
+	ld.q	SP, 24, r35
+	ld.q	SP, 16, r4
+	ld.q	SP,  8, r3
+	ld.q	SP,  0, r2
+	addi	SP, 32, SP
+	/* Fall through to original code, in the 'same' state we entered with */
+
+/* The slow byte-by-byte method is used if the fast copy traps due to a bad
+   user address.  In that rare case, the speed drop can be tolerated. */
+__copy_user_byte_by_byte:
+	pta	___copy_user_exit, tr1
+	pta	___copy_user1, tr0
+	beq/u	r4, r63, tr1	/* early exit for zero length copy */
+	sub	r2, r3, r0
+	addi	r0, -1, r0
+
+___copy_user1:
+	ld.b	r3, 0, r5		/* Fault address 1 */
+
+	/* Could rewrite this to use just 1 add, but the second comes 'free'
+	   due to load latency */
+	addi	r3, 1, r3
+	addi	r4, -1, r4		/* No real fixup required */
+___copy_user2:
+	stx.b	r3, r0, r5		/* Fault address 2 */
+	bne     r4, ZERO, tr0
+
+___copy_user_exit:
+	or	r4, ZERO, r2
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
+/*
+ * __kernel_size_t __clear_user(void *addr, __kernel_size_t size)
+ *
+ * Inputs:
+ * (r2)  target address
+ * (r3)  size in bytes
+ *
+ * Ouputs:
+ * (*r2) zero-ed target data
+ * (r2)  non-zero-ed bytes
+ */
+	.global	__clear_user
+__clear_user:
+	pta	___clear_user_exit, tr1
+	pta	___clear_user1, tr0
+	beq/u	r3, r63, tr1
+
+___clear_user1:
+	st.b	r2, 0, ZERO		/* Fault address */
+	addi	r2, 1, r2
+	addi	r3, -1, r3		/* No real fixup required */
+	bne     r3, ZERO, tr0
+
+___clear_user_exit:
+	or	r3, ZERO, r2
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
+
+/*
+ * int __strncpy_from_user(unsigned long __dest, unsigned long __src,
+ *			   int __count)
+ *
+ * Inputs:
+ * (r2)  target address
+ * (r3)  source address
+ * (r4)  maximum size in bytes
+ *
+ * Ouputs:
+ * (*r2) copied data
+ * (r2)  -EFAULT (in case of faulting)
+ *       copied data (otherwise)
+ */
+	.global	__strncpy_from_user
+__strncpy_from_user:
+	pta	___strncpy_from_user1, tr0
+	pta	___strncpy_from_user_done, tr1
+	or	r4, ZERO, r5		/* r5 = original count */
+	beq/u	r4, r63, tr1		/* early exit if r4==0 */
+	movi	-(EFAULT), r6		/* r6 = reply, no real fixup */
+	or	ZERO, ZERO, r7		/* r7 = data, clear top byte of data */
+
+___strncpy_from_user1:
+	ld.b	r3, 0, r7		/* Fault address: only in reading */
+	st.b	r2, 0, r7
+	addi	r2, 1, r2
+	addi	r3, 1, r3
+	beq/u	ZERO, r7, tr1
+	addi	r4, -1, r4		/* return real number of copied bytes */
+	bne/l	ZERO, r4, tr0
+
+___strncpy_from_user_done:
+	sub	r5, r4, r6		/* If done, return copied */
+
+___strncpy_from_user_exit:
+	or	r6, ZERO, r2
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
+/*
+ * extern long __strnlen_user(const char *__s, long __n)
+ *
+ * Inputs:
+ * (r2)  source address
+ * (r3)  source size in bytes
+ *
+ * Ouputs:
+ * (r2)  -EFAULT (in case of faulting)
+ *       string length (otherwise)
+ */
+	.global	__strnlen_user
+__strnlen_user:
+	pta	___strnlen_user_set_reply, tr0
+	pta	___strnlen_user1, tr1
+	or	ZERO, ZERO, r5		/* r5 = counter */
+	movi	-(EFAULT), r6		/* r6 = reply, no real fixup */
+	or	ZERO, ZERO, r7		/* r7 = data, clear top byte of data */
+	beq	r3, ZERO, tr0
+
+___strnlen_user1:
+	ldx.b	r2, r5, r7		/* Fault address: only in reading */
+	addi	r3, -1, r3		/* No real fixup */
+	addi	r5, 1, r5
+	beq	r3, ZERO, tr0
+	bne	r7, ZERO, tr1
+! The line below used to be active.  This meant led to a junk byte lying between each pair
+! of entries in the argv & envp structures in memory.  Whilst the program saw the right data
+! via the argv and envp arguments to main, it meant the 'flat' representation visible through
+! /proc/$pid/cmdline was corrupt, causing trouble with ps, for example.
+!	addi	r5, 1, r5		/* Include '\0' */
+
+___strnlen_user_set_reply:
+	or	r5, ZERO, r6		/* If done, return counter */
+
+___strnlen_user_exit:
+	or	r6, ZERO, r2
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
+/*
+ * extern long __get_user_asm_?(void *val, long addr)
+ *
+ * Inputs:
+ * (r2)  dest address
+ * (r3)  source address (in User Space)
+ *
+ * Ouputs:
+ * (r2)  -EFAULT (faulting)
+ *       0 	 (not faulting)
+ */
+	.global	__get_user_asm_b
+__get_user_asm_b:
+	or	r2, ZERO, r4
+	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
+
+___get_user_asm_b1:
+	ld.b	r3, 0, r5		/* r5 = data */
+	st.b	r4, 0, r5
+	or	ZERO, ZERO, r2
+
+___get_user_asm_b_exit:
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
+
+	.global	__get_user_asm_w
+__get_user_asm_w:
+	or	r2, ZERO, r4
+	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
+
+___get_user_asm_w1:
+	ld.w	r3, 0, r5		/* r5 = data */
+	st.w	r4, 0, r5
+	or	ZERO, ZERO, r2
+
+___get_user_asm_w_exit:
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
+
+	.global	__get_user_asm_l
+__get_user_asm_l:
+	or	r2, ZERO, r4
+	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
+
+___get_user_asm_l1:
+	ld.l	r3, 0, r5		/* r5 = data */
+	st.l	r4, 0, r5
+	or	ZERO, ZERO, r2
+
+___get_user_asm_l_exit:
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
+
+	.global	__get_user_asm_q
+__get_user_asm_q:
+	or	r2, ZERO, r4
+	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
+
+___get_user_asm_q1:
+	ld.q	r3, 0, r5		/* r5 = data */
+	st.q	r4, 0, r5
+	or	ZERO, ZERO, r2
+
+___get_user_asm_q_exit:
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
+/*
+ * extern long __put_user_asm_?(void *pval, long addr)
+ *
+ * Inputs:
+ * (r2)  kernel pointer to value
+ * (r3)  dest address (in User Space)
+ *
+ * Ouputs:
+ * (r2)  -EFAULT (faulting)
+ *       0 	 (not faulting)
+ */
+	.global	__put_user_asm_b
+__put_user_asm_b:
+	ld.b	r2, 0, r4		/* r4 = data */
+	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
+
+___put_user_asm_b1:
+	st.b	r3, 0, r4
+	or	ZERO, ZERO, r2
+
+___put_user_asm_b_exit:
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
+
+	.global	__put_user_asm_w
+__put_user_asm_w:
+	ld.w	r2, 0, r4		/* r4 = data */
+	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
+
+___put_user_asm_w1:
+	st.w	r3, 0, r4
+	or	ZERO, ZERO, r2
+
+___put_user_asm_w_exit:
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
+
+	.global	__put_user_asm_l
+__put_user_asm_l:
+	ld.l	r2, 0, r4		/* r4 = data */
+	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
+
+___put_user_asm_l1:
+	st.l	r3, 0, r4
+	or	ZERO, ZERO, r2
+
+___put_user_asm_l_exit:
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
+
+	.global	__put_user_asm_q
+__put_user_asm_q:
+	ld.q	r2, 0, r4		/* r4 = data */
+	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
+
+___put_user_asm_q1:
+	st.q	r3, 0, r4
+	or	ZERO, ZERO, r2
+
+___put_user_asm_q_exit:
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
+panic_stash_regs:
+	/* The idea is : when we get an unhandled panic, we dump the registers
+	   to a known memory location, the just sit in a tight loop.
+	   This allows the human to look at the memory region through the GDB
+	   session (assuming the debug module's SHwy initiator isn't locked up
+	   or anything), to hopefully analyze the cause of the panic. */
+
+	/* On entry, former r15 (SP) is in DCR
+	   former r0  is at resvec_saved_area + 0
+	   former r1  is at resvec_saved_area + 8
+	   former tr0 is at resvec_saved_area + 32
+	   DCR is the only register whose value is lost altogether.
+	*/
+
+	movi	0xffffffff80000000, r0 ! phy of dump area
+	ld.q	SP, 0x000, r1	! former r0
+	st.q	r0,  0x000, r1
+	ld.q	SP, 0x008, r1	! former r1
+	st.q	r0,  0x008, r1
+	st.q	r0,  0x010, r2
+	st.q	r0,  0x018, r3
+	st.q	r0,  0x020, r4
+	st.q	r0,  0x028, r5
+	st.q	r0,  0x030, r6
+	st.q	r0,  0x038, r7
+	st.q	r0,  0x040, r8
+	st.q	r0,  0x048, r9
+	st.q	r0,  0x050, r10
+	st.q	r0,  0x058, r11
+	st.q	r0,  0x060, r12
+	st.q	r0,  0x068, r13
+	st.q	r0,  0x070, r14
+	getcon	dcr, r14
+	st.q	r0,  0x078, r14
+	st.q	r0,  0x080, r16
+	st.q	r0,  0x088, r17
+	st.q	r0,  0x090, r18
+	st.q	r0,  0x098, r19
+	st.q	r0,  0x0a0, r20
+	st.q	r0,  0x0a8, r21
+	st.q	r0,  0x0b0, r22
+	st.q	r0,  0x0b8, r23
+	st.q	r0,  0x0c0, r24
+	st.q	r0,  0x0c8, r25
+	st.q	r0,  0x0d0, r26
+	st.q	r0,  0x0d8, r27
+	st.q	r0,  0x0e0, r28
+	st.q	r0,  0x0e8, r29
+	st.q	r0,  0x0f0, r30
+	st.q	r0,  0x0f8, r31
+	st.q	r0,  0x100, r32
+	st.q	r0,  0x108, r33
+	st.q	r0,  0x110, r34
+	st.q	r0,  0x118, r35
+	st.q	r0,  0x120, r36
+	st.q	r0,  0x128, r37
+	st.q	r0,  0x130, r38
+	st.q	r0,  0x138, r39
+	st.q	r0,  0x140, r40
+	st.q	r0,  0x148, r41
+	st.q	r0,  0x150, r42
+	st.q	r0,  0x158, r43
+	st.q	r0,  0x160, r44
+	st.q	r0,  0x168, r45
+	st.q	r0,  0x170, r46
+	st.q	r0,  0x178, r47
+	st.q	r0,  0x180, r48
+	st.q	r0,  0x188, r49
+	st.q	r0,  0x190, r50
+	st.q	r0,  0x198, r51
+	st.q	r0,  0x1a0, r52
+	st.q	r0,  0x1a8, r53
+	st.q	r0,  0x1b0, r54
+	st.q	r0,  0x1b8, r55
+	st.q	r0,  0x1c0, r56
+	st.q	r0,  0x1c8, r57
+	st.q	r0,  0x1d0, r58
+	st.q	r0,  0x1d8, r59
+	st.q	r0,  0x1e0, r60
+	st.q	r0,  0x1e8, r61
+	st.q	r0,  0x1f0, r62
+	st.q	r0,  0x1f8, r63	! bogus, but for consistency's sake...
+
+	ld.q	SP, 0x020, r1  ! former tr0
+	st.q	r0,  0x200, r1
+	gettr	tr1, r1
+	st.q	r0,  0x208, r1
+	gettr	tr2, r1
+	st.q	r0,  0x210, r1
+	gettr	tr3, r1
+	st.q	r0,  0x218, r1
+	gettr	tr4, r1
+	st.q	r0,  0x220, r1
+	gettr	tr5, r1
+	st.q	r0,  0x228, r1
+	gettr	tr6, r1
+	st.q	r0,  0x230, r1
+	gettr	tr7, r1
+	st.q	r0,  0x238, r1
+
+	getcon	sr,  r1
+	getcon	ssr,  r2
+	getcon	pssr,  r3
+	getcon	spc,  r4
+	getcon	pspc,  r5
+	getcon	intevt,  r6
+	getcon	expevt,  r7
+	getcon	pexpevt,  r8
+	getcon	tra,  r9
+	getcon	tea,  r10
+	getcon	kcr0, r11
+	getcon	kcr1, r12
+	getcon	vbr,  r13
+	getcon	resvec,  r14
+
+	st.q	r0,  0x240, r1
+	st.q	r0,  0x248, r2
+	st.q	r0,  0x250, r3
+	st.q	r0,  0x258, r4
+	st.q	r0,  0x260, r5
+	st.q	r0,  0x268, r6
+	st.q	r0,  0x270, r7
+	st.q	r0,  0x278, r8
+	st.q	r0,  0x280, r9
+	st.q	r0,  0x288, r10
+	st.q	r0,  0x290, r11
+	st.q	r0,  0x298, r12
+	st.q	r0,  0x2a0, r13
+	st.q	r0,  0x2a8, r14
+
+	getcon	SPC,r2
+	getcon	SSR,r3
+	getcon	EXPEVT,r4
+	/* Prepare to jump to C - physical address */
+	movi	panic_handler-CONFIG_CACHED_MEMORY_OFFSET, r1
+	ori	r1, 1, r1
+	ptabs   r1, tr0
+	getcon	DCR, SP
+	blink	tr0, ZERO
+	nop
+	nop
+	nop
+	nop
+
+
+
+
+/*
+ * --- Signal Handling Section
+ */
+
+/*
+ * extern long long _sa_default_rt_restorer
+ * extern long long _sa_default_restorer
+ *
+ *		 or, better,
+ *
+ * extern void _sa_default_rt_restorer(void)
+ * extern void _sa_default_restorer(void)
+ *
+ * Code prototypes to do a sys_rt_sigreturn() or sys_sysreturn()
+ * from user space. Copied into user space by signal management.
+ * Both must be quad aligned and 2 quad long (4 instructions).
+ *
+ */
+	.balign 8
+	.global sa_default_rt_restorer
+sa_default_rt_restorer:
+	movi	0x10, r9
+	shori	__NR_rt_sigreturn, r9
+	trapa	r9
+	nop
+
+	.balign 8
+	.global sa_default_restorer
+sa_default_restorer:
+	movi	0x10, r9
+	shori	__NR_sigreturn, r9
+	trapa	r9
+	nop
+
+/*
+ * --- __ex_table Section
+ */
+
+/*
+ * User Access Exception Table.
+ */
+	.section	__ex_table,  "a"
+
+	.global asm_uaccess_start	/* Just a marker */
+asm_uaccess_start:
+
+	.long	___copy_user1, ___copy_user_exit
+	.long	___copy_user2, ___copy_user_exit
+	.long	___clear_user1, ___clear_user_exit
+	.long	___strncpy_from_user1, ___strncpy_from_user_exit
+	.long	___strnlen_user1, ___strnlen_user_exit
+	.long	___get_user_asm_b1, ___get_user_asm_b_exit
+	.long	___get_user_asm_w1, ___get_user_asm_w_exit
+	.long	___get_user_asm_l1, ___get_user_asm_l_exit
+	.long	___get_user_asm_q1, ___get_user_asm_q_exit
+	.long	___put_user_asm_b1, ___put_user_asm_b_exit
+	.long	___put_user_asm_w1, ___put_user_asm_w_exit
+	.long	___put_user_asm_l1, ___put_user_asm_l_exit
+	.long	___put_user_asm_q1, ___put_user_asm_q_exit
+
+	.global asm_uaccess_end		/* Just a marker */
+asm_uaccess_end:
+
+
+
+
+/*
+ * --- .text.init Section
+ */
+
+	.section	.text.init, "ax"
+
+/*
+ * void trap_init (void)
+ *
+ */
+	.global	trap_init
+trap_init:
+	addi	SP, -24, SP			/* Room to save r28/r29/r30 */
+	st.q	SP, 0, r28
+	st.q	SP, 8, r29
+	st.q	SP, 16, r30
+
+	/* Set VBR and RESVEC */
+	movi	LVBR_block, r19
+	andi	r19, -4, r19			/* reset MMUOFF + reserved */
+	/* For RESVEC exceptions we force the MMU off, which means we need the
+	   physical address. */
+	movi	LRESVEC_block-CONFIG_CACHED_MEMORY_OFFSET, r20
+	andi	r20, -4, r20			/* reset reserved */
+	ori	r20, 1, r20			/* set MMUOFF */
+	putcon	r19, VBR
+	putcon	r20, RESVEC
+
+	/* Sanity check */
+	movi	LVBR_block_end, r21
+	andi	r21, -4, r21
+	movi	BLOCK_SIZE, r29			/* r29 = expected size */
+	or	r19, ZERO, r30
+	add	r19, r29, r19
+
+	/*
+	 * Ugly, but better loop forever now than crash afterwards.
+	 * We should print a message, but if we touch LVBR or
+	 * LRESVEC blocks we should not be surprised if we get stuck
+	 * in trap_init().
+	 */
+	pta	trap_init_loop, tr1
+	gettr	tr1, r28			/* r28 = trap_init_loop */
+	sub	r21, r30, r30			/* r30 = actual size */
+
+	/*
+	 * VBR/RESVEC handlers overlap by being bigger than
+	 * allowed. Very bad. Just loop forever.
+	 * (r28) panic/loop address
+	 * (r29) expected size
+	 * (r30) actual size
+	 */
+trap_init_loop:
+	bne	r19, r21, tr1
+
+	/* Now that exception vectors are set up reset SR.BL */
+	getcon 	SR, r22
+	movi	SR_UNBLOCK_EXC, r23
+	and	r22, r23, r22
+	putcon	r22, SR
+
+	addi	SP, 24, SP
+	ptabs	LINK, tr0
+	blink	tr0, ZERO
+
diff --git a/arch/sh64/kernel/entry.S b/arch/sh64/kernel/entry.S
deleted file mode 100644
index 7013fcb6665c..000000000000
--- a/arch/sh64/kernel/entry.S
+++ /dev/null
@@ -1,2102 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/entry.S
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2004, 2005  Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- */
-
-#include <linux/errno.h>
-#include <linux/sys.h>
-
-#include <asm/processor.h>
-#include <asm/registers.h>
-#include <asm/unistd.h>
-#include <asm/thread_info.h>
-#include <asm/asm-offsets.h>
-
-/*
- * SR fields.
- */
-#define SR_ASID_MASK	0x00ff0000
-#define SR_FD_MASK	0x00008000
-#define SR_SS		0x08000000
-#define SR_BL		0x10000000
-#define SR_MD		0x40000000
-
-/*
- * Event code.
- */
-#define	EVENT_INTERRUPT		0
-#define	EVENT_FAULT_TLB		1
-#define	EVENT_FAULT_NOT_TLB	2
-#define	EVENT_DEBUG		3
-
-/* EXPEVT values */
-#define	RESET_CAUSE		0x20
-#define DEBUGSS_CAUSE		0x980
-
-/*
- * Frame layout. Quad index.
- */
-#define	FRAME_T(x)	FRAME_TBASE+(x*8)
-#define	FRAME_R(x)	FRAME_RBASE+(x*8)
-#define	FRAME_S(x)	FRAME_SBASE+(x*8)
-#define FSPC		0
-#define FSSR		1
-#define FSYSCALL_ID	2
-
-/* Arrange the save frame to be a multiple of 32 bytes long */
-#define FRAME_SBASE	0
-#define FRAME_RBASE	(FRAME_SBASE+(3*8))	/* SYSCALL_ID - SSR - SPC */
-#define FRAME_TBASE	(FRAME_RBASE+(63*8))	/* r0 - r62 */
-#define FRAME_PBASE	(FRAME_TBASE+(8*8))	/* tr0 -tr7 */
-#define	FRAME_SIZE	(FRAME_PBASE+(2*8))	/* pad0-pad1 */
-
-#define FP_FRAME_SIZE	FP_FRAME_BASE+(33*8)	/* dr0 - dr31 + fpscr */
-#define FP_FRAME_BASE	0
-
-#define	SAVED_R2	0*8
-#define	SAVED_R3	1*8
-#define	SAVED_R4	2*8
-#define	SAVED_R5	3*8
-#define	SAVED_R18	4*8
-#define	SAVED_R6	5*8
-#define	SAVED_TR0	6*8
-
-/* These are the registers saved in the TLB path that aren't saved in the first
-   level of the normal one. */
-#define	TLB_SAVED_R25	7*8
-#define	TLB_SAVED_TR1	8*8
-#define	TLB_SAVED_TR2	9*8
-#define	TLB_SAVED_TR3	10*8
-#define	TLB_SAVED_TR4	11*8
-/* Save R0/R1 : PT-migrating compiler currently dishounours -ffixed-r0 and -ffixed-r1 causing
-   breakage otherwise. */
-#define	TLB_SAVED_R0	12*8
-#define	TLB_SAVED_R1	13*8
-
-#define CLI()				\
-	getcon	SR, r6;			\
-	ori	r6, 0xf0, r6;		\
-	putcon	r6, SR;
-
-#define STI()				\
-	getcon	SR, r6;			\
-	andi	r6, ~0xf0, r6;		\
-	putcon	r6, SR;
-
-#ifdef CONFIG_PREEMPT
-#  define preempt_stop()	CLI()
-#else
-#  define preempt_stop()
-#  define resume_kernel		restore_all
-#endif
-
-	.section	.data, "aw"
-
-#define FAST_TLBMISS_STACK_CACHELINES 4
-#define FAST_TLBMISS_STACK_QUADWORDS (4*FAST_TLBMISS_STACK_CACHELINES)
-
-/* Register back-up area for all exceptions */
-	.balign	32
-	/* Allow for 16 quadwords to be pushed by fast tlbmiss handling
-	 * register saves etc. */
-	.fill FAST_TLBMISS_STACK_QUADWORDS, 8, 0x0
-/* This is 32 byte aligned by construction */
-/* Register back-up area for all exceptions */
-reg_save_area:
-	.quad	0
-	.quad	0
-	.quad	0
-	.quad	0
-
-	.quad	0
-	.quad	0
-	.quad	0
-	.quad	0
-
-	.quad	0
-	.quad	0
-	.quad	0
-	.quad	0
-
-	.quad	0
-	.quad   0
-
-/* Save area for RESVEC exceptions. We cannot use reg_save_area because of
- * reentrancy. Note this area may be accessed via physical address.
- * Align so this fits a whole single cache line, for ease of purging.
- */
-	.balign 32,0,32
-resvec_save_area:
-	.quad	0
-	.quad	0
-	.quad	0
-	.quad	0
-	.quad	0
-	.balign 32,0,32
-
-/* Jump table of 3rd level handlers  */
-trap_jtable:
-	.long	do_exception_error		/* 0x000 */
-	.long	do_exception_error		/* 0x020 */
-	.long	tlb_miss_load				/* 0x040 */
-	.long	tlb_miss_store				/* 0x060 */
-	! ARTIFICIAL pseudo-EXPEVT setting
-	.long	do_debug_interrupt		/* 0x080 */
-	.long	tlb_miss_load				/* 0x0A0 */
-	.long	tlb_miss_store				/* 0x0C0 */
-	.long	do_address_error_load	/* 0x0E0 */
-	.long	do_address_error_store	/* 0x100 */
-#ifdef CONFIG_SH_FPU
-	.long	do_fpu_error		/* 0x120 */
-#else
-	.long	do_exception_error		/* 0x120 */
-#endif
-	.long	do_exception_error		/* 0x140 */
-	.long	system_call				/* 0x160 */
-	.long	do_reserved_inst		/* 0x180 */
-	.long	do_illegal_slot_inst	/* 0x1A0 */
-	.long	do_NMI			/* 0x1C0 */
-	.long	do_exception_error		/* 0x1E0 */
-	.rept 15
-		.long do_IRQ		/* 0x200 - 0x3C0 */
-	.endr
-	.long	do_exception_error		/* 0x3E0 */
-	.rept 32
-		.long do_IRQ		/* 0x400 - 0x7E0 */
-	.endr
-	.long	fpu_error_or_IRQA			/* 0x800 */
-	.long	fpu_error_or_IRQB			/* 0x820 */
-	.long	do_IRQ			/* 0x840 */
-	.long	do_IRQ			/* 0x860 */
-	.rept 6
-		.long do_exception_error	/* 0x880 - 0x920 */
-	.endr
-	.long	do_software_break_point	/* 0x940 */
-	.long	do_exception_error		/* 0x960 */
-	.long	do_single_step		/* 0x980 */
-
-	.rept 3
-		.long do_exception_error	/* 0x9A0 - 0x9E0 */
-	.endr
-	.long	do_IRQ			/* 0xA00 */
-	.long	do_IRQ			/* 0xA20 */
-	.long	itlb_miss_or_IRQ			/* 0xA40 */
-	.long	do_IRQ			/* 0xA60 */
-	.long	do_IRQ			/* 0xA80 */
-	.long	itlb_miss_or_IRQ			/* 0xAA0 */
-	.long	do_exception_error		/* 0xAC0 */
-	.long	do_address_error_exec	/* 0xAE0 */
-	.rept 8
-		.long do_exception_error	/* 0xB00 - 0xBE0 */
-	.endr
-	.rept 18
-		.long do_IRQ		/* 0xC00 - 0xE20 */
-	.endr
-
-	.section	.text64, "ax"
-
-/*
- * --- Exception/Interrupt/Event Handling Section
- */
-
-/*
- * VBR and RESVEC blocks.
- *
- * First level handler for VBR-based exceptions.
- *
- * To avoid waste of space, align to the maximum text block size.
- * This is assumed to be at most 128 bytes or 32 instructions.
- * DO NOT EXCEED 32 instructions on the first level handlers !
- *
- * Also note that RESVEC is contained within the VBR block
- * where the room left (1KB - TEXT_SIZE) allows placing
- * the RESVEC block (at most 512B + TEXT_SIZE).
- *
- * So first (and only) level handler for RESVEC-based exceptions.
- *
- * Where the fault/interrupt is handled (not_a_tlb_miss, tlb_miss
- * and interrupt) we are a lot tight with register space until
- * saving onto the stack frame, which is done in handle_exception().
- *
- */
-
-#define	TEXT_SIZE 	128
-#define	BLOCK_SIZE 	1664 		/* Dynamic check, 13*128 */
-
-	.balign TEXT_SIZE
-LVBR_block:
-	.space	256, 0			/* Power-on class handler, */
-					/* not required here       */
-not_a_tlb_miss:
-	synco	/* TAKum03020 (but probably a good idea anyway.) */
-	/* Save original stack pointer into KCR1 */
-	putcon	SP, KCR1
-
-	/* Save other original registers into reg_save_area */
-        movi  reg_save_area, SP
-	st.q	SP, SAVED_R2, r2
-	st.q	SP, SAVED_R3, r3
-	st.q	SP, SAVED_R4, r4
-	st.q	SP, SAVED_R5, r5
-	st.q	SP, SAVED_R6, r6
-	st.q	SP, SAVED_R18, r18
-	gettr	tr0, r3
-	st.q	SP, SAVED_TR0, r3
-
-	/* Set args for Non-debug, Not a TLB miss class handler */
-	getcon	EXPEVT, r2
-	movi	ret_from_exception, r3
-	ori	r3, 1, r3
-	movi	EVENT_FAULT_NOT_TLB, r4
-	or	SP, ZERO, r5
-	getcon	KCR1, SP
-	pta	handle_exception, tr0
-	blink	tr0, ZERO
-
-	.balign 256
-	! VBR+0x200
-	nop
-	.balign 256
-	! VBR+0x300
-	nop
-	.balign 256
-	/*
-	 * Instead of the natural .balign 1024 place RESVEC here
-	 * respecting the final 1KB alignment.
-	 */
-	.balign TEXT_SIZE
-	/*
-	 * Instead of '.space 1024-TEXT_SIZE' place the RESVEC
-	 * block making sure the final alignment is correct.
-	 */
-tlb_miss:
-	synco	/* TAKum03020 (but probably a good idea anyway.) */
-	putcon	SP, KCR1
-	movi	reg_save_area, SP
-	/* SP is guaranteed 32-byte aligned. */
-	st.q	SP, TLB_SAVED_R0 , r0
-	st.q	SP, TLB_SAVED_R1 , r1
-	st.q	SP, SAVED_R2 , r2
-	st.q	SP, SAVED_R3 , r3
-	st.q	SP, SAVED_R4 , r4
-	st.q	SP, SAVED_R5 , r5
-	st.q	SP, SAVED_R6 , r6
-	st.q	SP, SAVED_R18, r18
-
-	/* Save R25 for safety; as/ld may want to use it to achieve the call to
-	 * the code in mm/tlbmiss.c */
-	st.q	SP, TLB_SAVED_R25, r25
-	gettr	tr0, r2
-	gettr	tr1, r3
-	gettr	tr2, r4
-	gettr	tr3, r5
-	gettr	tr4, r18
-	st.q	SP, SAVED_TR0 , r2
-	st.q	SP, TLB_SAVED_TR1 , r3
-	st.q	SP, TLB_SAVED_TR2 , r4
-	st.q	SP, TLB_SAVED_TR3 , r5
-	st.q	SP, TLB_SAVED_TR4 , r18
-
-	pt	do_fast_page_fault, tr0
-	getcon	SSR, r2
-	getcon	EXPEVT, r3
-	getcon	TEA, r4
-	shlri	r2, 30, r2
-	andi	r2, 1, r2	/* r2 = SSR.MD */
-	blink 	tr0, LINK
-
-	pt	fixup_to_invoke_general_handler, tr1
-
-	/* If the fast path handler fixed the fault, just drop through quickly
-	   to the restore code right away to return to the excepting context.
-	   */
-	beqi/u	r2, 0, tr1
-
-fast_tlb_miss_restore:
-	ld.q	SP, SAVED_TR0, r2
-	ld.q	SP, TLB_SAVED_TR1, r3
-	ld.q	SP, TLB_SAVED_TR2, r4
-
-	ld.q	SP, TLB_SAVED_TR3, r5
-	ld.q	SP, TLB_SAVED_TR4, r18
-
-	ptabs	r2, tr0
-	ptabs	r3, tr1
-	ptabs	r4, tr2
-	ptabs	r5, tr3
-	ptabs	r18, tr4
-
-	ld.q	SP, TLB_SAVED_R0, r0
-	ld.q	SP, TLB_SAVED_R1, r1
-	ld.q	SP, SAVED_R2, r2
-	ld.q	SP, SAVED_R3, r3
-	ld.q	SP, SAVED_R4, r4
-	ld.q	SP, SAVED_R5, r5
-	ld.q	SP, SAVED_R6, r6
-	ld.q	SP, SAVED_R18, r18
-	ld.q	SP, TLB_SAVED_R25, r25
-
-	getcon	KCR1, SP
-	rte
-	nop /* for safety, in case the code is run on sh5-101 cut1.x */
-
-fixup_to_invoke_general_handler:
-
-	/* OK, new method.  Restore stuff that's not expected to get saved into
-	   the 'first-level' reg save area, then just fall through to setting
-	   up the registers and calling the second-level handler. */
-
-	/* 2nd level expects r2,3,4,5,6,18,tr0 to be saved.  So we must restore
-	   r25,tr1-4 and save r6 to get into the right state.  */
-
-	ld.q	SP, TLB_SAVED_TR1, r3
-	ld.q	SP, TLB_SAVED_TR2, r4
-	ld.q	SP, TLB_SAVED_TR3, r5
-	ld.q	SP, TLB_SAVED_TR4, r18
-	ld.q	SP, TLB_SAVED_R25, r25
-
-	ld.q	SP, TLB_SAVED_R0, r0
-	ld.q	SP, TLB_SAVED_R1, r1
-
-	ptabs/u	r3, tr1
-	ptabs/u	r4, tr2
-	ptabs/u	r5, tr3
-	ptabs/u	r18, tr4
-
-	/* Set args for Non-debug, TLB miss class handler */
-	getcon	EXPEVT, r2
-	movi	ret_from_exception, r3
-	ori	r3, 1, r3
-	movi	EVENT_FAULT_TLB, r4
-	or	SP, ZERO, r5
-	getcon	KCR1, SP
-	pta	handle_exception, tr0
-	blink	tr0, ZERO
-
-/* NB TAKE GREAT CARE HERE TO ENSURE THAT THE INTERRUPT CODE
-   DOES END UP AT VBR+0x600 */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-
-	.balign 256
-	/* VBR + 0x600 */
-
-interrupt:
-	synco	/* TAKum03020 (but probably a good idea anyway.) */
-	/* Save original stack pointer into KCR1 */
-	putcon	SP, KCR1
-
-	/* Save other original registers into reg_save_area */
-        movi  reg_save_area, SP
-	st.q	SP, SAVED_R2, r2
-	st.q	SP, SAVED_R3, r3
-	st.q	SP, SAVED_R4, r4
-	st.q	SP, SAVED_R5, r5
-	st.q	SP, SAVED_R6, r6
-	st.q	SP, SAVED_R18, r18
-	gettr	tr0, r3
-	st.q	SP, SAVED_TR0, r3
-
-	/* Set args for interrupt class handler */
-	getcon	INTEVT, r2
-	movi	ret_from_irq, r3
-	ori	r3, 1, r3
-	movi	EVENT_INTERRUPT, r4
-	or	SP, ZERO, r5
-	getcon	KCR1, SP
-	pta	handle_exception, tr0
-	blink	tr0, ZERO
-	.balign	TEXT_SIZE		/* let's waste the bare minimum */
-
-LVBR_block_end:				/* Marker. Used for total checking */
-
-	.balign 256
-LRESVEC_block:
-	/* Panic handler. Called with MMU off. Possible causes/actions:
-	 * - Reset:		Jump to program start.
-	 * - Single Step:	Turn off Single Step & return.
-	 * - Others:		Call panic handler, passing PC as arg.
-	 *			(this may need to be extended...)
-	 */
-reset_or_panic:
-	synco	/* TAKum03020 (but probably a good idea anyway.) */
-	putcon	SP, DCR
-	/* First save r0-1 and tr0, as we need to use these */
-	movi	resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
-	st.q	SP, 0, r0
-	st.q	SP, 8, r1
-	gettr	tr0, r0
-	st.q	SP, 32, r0
-
-	/* Check cause */
-	getcon	EXPEVT, r0
-	movi	RESET_CAUSE, r1
-	sub	r1, r0, r1		/* r1=0 if reset */
-	movi	_stext-CONFIG_CACHED_MEMORY_OFFSET, r0
-	ori	r0, 1, r0
-	ptabs	r0, tr0
-	beqi	r1, 0, tr0		/* Jump to start address if reset */
-
-	getcon	EXPEVT, r0
-	movi	DEBUGSS_CAUSE, r1
-	sub	r1, r0, r1		/* r1=0 if single step */
-	pta	single_step_panic, tr0
-	beqi	r1, 0, tr0		/* jump if single step */
-
-	/* Now jump to where we save the registers. */
-	movi	panic_stash_regs-CONFIG_CACHED_MEMORY_OFFSET, r1
-	ptabs	r1, tr0
-	blink	tr0, r63
-
-single_step_panic:
-	/* We are in a handler with Single Step set. We need to resume the
-	 * handler, by turning on MMU & turning off Single Step. */
-	getcon	SSR, r0
-	movi	SR_MMU, r1
-	or	r0, r1, r0
-	movi	~SR_SS, r1
-	and	r0, r1, r0
-	putcon	r0, SSR
-	/* Restore EXPEVT, as the rte won't do this */
-	getcon	PEXPEVT, r0
-	putcon	r0, EXPEVT
-	/* Restore regs */
-	ld.q	SP, 32, r0
-	ptabs	r0, tr0
-	ld.q	SP, 0, r0
-	ld.q	SP, 8, r1
-	getcon	DCR, SP
-	synco
-	rte
-
-
-	.balign	256
-debug_exception:
-	synco	/* TAKum03020 (but probably a good idea anyway.) */
-	/*
-	 * Single step/software_break_point first level handler.
-	 * Called with MMU off, so the first thing we do is enable it
-	 * by doing an rte with appropriate SSR.
-	 */
-	putcon	SP, DCR
-	/* Save SSR & SPC, together with R0 & R1, as we need to use 2 regs. */
-	movi	resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
-
-	/* With the MMU off, we are bypassing the cache, so purge any
-         * data that will be made stale by the following stores.
-         */
-	ocbp	SP, 0
-	synco
-
-	st.q	SP, 0, r0
-	st.q	SP, 8, r1
-	getcon	SPC, r0
-	st.q	SP, 16, r0
-	getcon	SSR, r0
-	st.q	SP, 24, r0
-
-	/* Enable MMU, block exceptions, set priv mode, disable single step */
-	movi	SR_MMU | SR_BL | SR_MD, r1
-	or	r0, r1, r0
-	movi	~SR_SS, r1
-	and	r0, r1, r0
-	putcon	r0, SSR
-	/* Force control to debug_exception_2 when rte is executed */
-	movi	debug_exeception_2, r0
-	ori	r0, 1, r0      /* force SHmedia, just in case */
-	putcon	r0, SPC
-	getcon	DCR, SP
-	synco
-	rte
-debug_exeception_2:
-	/* Restore saved regs */
-	putcon	SP, KCR1
-	movi	resvec_save_area, SP
-	ld.q	SP, 24, r0
-	putcon	r0, SSR
-	ld.q	SP, 16, r0
-	putcon	r0, SPC
-	ld.q	SP, 0, r0
-	ld.q	SP, 8, r1
-
-	/* Save other original registers into reg_save_area */
-        movi  reg_save_area, SP
-	st.q	SP, SAVED_R2, r2
-	st.q	SP, SAVED_R3, r3
-	st.q	SP, SAVED_R4, r4
-	st.q	SP, SAVED_R5, r5
-	st.q	SP, SAVED_R6, r6
-	st.q	SP, SAVED_R18, r18
-	gettr	tr0, r3
-	st.q	SP, SAVED_TR0, r3
-
-	/* Set args for debug class handler */
-	getcon	EXPEVT, r2
-	movi	ret_from_exception, r3
-	ori	r3, 1, r3
-	movi	EVENT_DEBUG, r4
-	or	SP, ZERO, r5
-	getcon	KCR1, SP
-	pta	handle_exception, tr0
-	blink	tr0, ZERO
-
-	.balign	256
-debug_interrupt:
-	/* !!! WE COME HERE IN REAL MODE !!! */
-	/* Hook-up debug interrupt to allow various debugging options to be
-	 * hooked into its handler. */
-	/* Save original stack pointer into KCR1 */
-	synco
-	putcon	SP, KCR1
-	movi	resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
-	ocbp	SP, 0
-	ocbp	SP, 32
-	synco
-
-	/* Save other original registers into reg_save_area thru real addresses */
-	st.q	SP, SAVED_R2, r2
-	st.q	SP, SAVED_R3, r3
-	st.q	SP, SAVED_R4, r4
-	st.q	SP, SAVED_R5, r5
-	st.q	SP, SAVED_R6, r6
-	st.q	SP, SAVED_R18, r18
-	gettr	tr0, r3
-	st.q	SP, SAVED_TR0, r3
-
-	/* move (spc,ssr)->(pspc,pssr).  The rte will shift
-	   them back again, so that they look like the originals
-	   as far as the real handler code is concerned. */
-	getcon	spc, r6
-	putcon	r6, pspc
-	getcon	ssr, r6
-	putcon	r6, pssr
-
-	! construct useful SR for handle_exception
-	movi	3, r6
-	shlli	r6, 30, r6
-	getcon	sr, r18
-	or	r18, r6, r6
-	putcon	r6, ssr
-
-	! SSR is now the current SR with the MD and MMU bits set
-	! i.e. the rte will switch back to priv mode and put
-	! the mmu back on
-
-	! construct spc
-	movi	handle_exception, r18
-	ori	r18, 1, r18		! for safety (do we need this?)
-	putcon	r18, spc
-
-	/* Set args for Non-debug, Not a TLB miss class handler */
-
-	! EXPEVT==0x80 is unused, so 'steal' this value to put the
-	! debug interrupt handler in the vectoring table
-	movi	0x80, r2
-	movi	ret_from_exception, r3
-	ori	r3, 1, r3
-	movi	EVENT_FAULT_NOT_TLB, r4
-
-	or	SP, ZERO, r5
-	movi	CONFIG_CACHED_MEMORY_OFFSET, r6
-	add	r6, r5, r5
-	getcon	KCR1, SP
-
-	synco	! for safety
-	rte	! -> handle_exception, switch back to priv mode again
-
-LRESVEC_block_end:			/* Marker. Unused. */
-
-	.balign	TEXT_SIZE
-
-/*
- * Second level handler for VBR-based exceptions. Pre-handler.
- * In common to all stack-frame sensitive handlers.
- *
- * Inputs:
- * (KCR0) Current [current task union]
- * (KCR1) Original SP
- * (r2)   INTEVT/EXPEVT
- * (r3)   appropriate return address
- * (r4)   Event (0 = interrupt, 1 = TLB miss fault, 2 = Not TLB miss fault, 3=debug)
- * (r5)   Pointer to reg_save_area
- * (SP)   Original SP
- *
- * Available registers:
- * (r6)
- * (r18)
- * (tr0)
- *
- */
-handle_exception:
-	/* Common 2nd level handler. */
-
-	/* First thing we need an appropriate stack pointer */
-	getcon	SSR, r6
-	shlri	r6, 30, r6
-	andi	r6, 1, r6
-	pta	stack_ok, tr0
-	bne	r6, ZERO, tr0		/* Original stack pointer is fine */
-
-	/* Set stack pointer for user fault */
-	getcon	KCR0, SP
-	movi	THREAD_SIZE, r6		/* Point to the end */
-	add	SP, r6, SP
-
-stack_ok:
-
-/* DEBUG : check for underflow/overflow of the kernel stack */
-	pta	no_underflow, tr0
-	getcon  KCR0, r6
-	movi	1024, r18
-	add	r6, r18, r6
-	bge	SP, r6, tr0 	! ? below 1k from bottom of stack : danger zone
-
-/* Just panic to cause a crash. */
-bad_sp:
-	ld.b	r63, 0, r6
-	nop
-
-no_underflow:
-	pta	bad_sp, tr0
-	getcon	kcr0, r6
-	movi	THREAD_SIZE, r18
-	add	r18, r6, r6
-	bgt	SP, r6, tr0	! sp above the stack
-
-	/* Make some room for the BASIC frame. */
-	movi	-(FRAME_SIZE), r6
-	add	SP, r6, SP
-
-/* Could do this with no stalling if we had another spare register, but the
-   code below will be OK. */
-	ld.q	r5, SAVED_R2, r6
-	ld.q	r5, SAVED_R3, r18
-	st.q	SP, FRAME_R(2), r6
-	ld.q	r5, SAVED_R4, r6
-	st.q	SP, FRAME_R(3), r18
-	ld.q	r5, SAVED_R5, r18
-	st.q	SP, FRAME_R(4), r6
-	ld.q	r5, SAVED_R6, r6
-	st.q	SP, FRAME_R(5), r18
-	ld.q	r5, SAVED_R18, r18
-	st.q	SP, FRAME_R(6), r6
-	ld.q	r5, SAVED_TR0, r6
-	st.q	SP, FRAME_R(18), r18
-	st.q	SP, FRAME_T(0), r6
-
-	/* Keep old SP around */
-	getcon	KCR1, r6
-
-	/* Save the rest of the general purpose registers */
-	st.q	SP, FRAME_R(0), r0
-	st.q	SP, FRAME_R(1), r1
-	st.q	SP, FRAME_R(7), r7
-	st.q	SP, FRAME_R(8), r8
-	st.q	SP, FRAME_R(9), r9
-	st.q	SP, FRAME_R(10), r10
-	st.q	SP, FRAME_R(11), r11
-	st.q	SP, FRAME_R(12), r12
-	st.q	SP, FRAME_R(13), r13
-	st.q	SP, FRAME_R(14), r14
-
-	/* SP is somewhere else */
-	st.q	SP, FRAME_R(15), r6
-
-	st.q	SP, FRAME_R(16), r16
-	st.q	SP, FRAME_R(17), r17
-	/* r18 is saved earlier. */
-	st.q	SP, FRAME_R(19), r19
-	st.q	SP, FRAME_R(20), r20
-	st.q	SP, FRAME_R(21), r21
-	st.q	SP, FRAME_R(22), r22
-	st.q	SP, FRAME_R(23), r23
-	st.q	SP, FRAME_R(24), r24
-	st.q	SP, FRAME_R(25), r25
-	st.q	SP, FRAME_R(26), r26
-	st.q	SP, FRAME_R(27), r27
-	st.q	SP, FRAME_R(28), r28
-	st.q	SP, FRAME_R(29), r29
-	st.q	SP, FRAME_R(30), r30
-	st.q	SP, FRAME_R(31), r31
-	st.q	SP, FRAME_R(32), r32
-	st.q	SP, FRAME_R(33), r33
-	st.q	SP, FRAME_R(34), r34
-	st.q	SP, FRAME_R(35), r35
-	st.q	SP, FRAME_R(36), r36
-	st.q	SP, FRAME_R(37), r37
-	st.q	SP, FRAME_R(38), r38
-	st.q	SP, FRAME_R(39), r39
-	st.q	SP, FRAME_R(40), r40
-	st.q	SP, FRAME_R(41), r41
-	st.q	SP, FRAME_R(42), r42
-	st.q	SP, FRAME_R(43), r43
-	st.q	SP, FRAME_R(44), r44
-	st.q	SP, FRAME_R(45), r45
-	st.q	SP, FRAME_R(46), r46
-	st.q	SP, FRAME_R(47), r47
-	st.q	SP, FRAME_R(48), r48
-	st.q	SP, FRAME_R(49), r49
-	st.q	SP, FRAME_R(50), r50
-	st.q	SP, FRAME_R(51), r51
-	st.q	SP, FRAME_R(52), r52
-	st.q	SP, FRAME_R(53), r53
-	st.q	SP, FRAME_R(54), r54
-	st.q	SP, FRAME_R(55), r55
-	st.q	SP, FRAME_R(56), r56
-	st.q	SP, FRAME_R(57), r57
-	st.q	SP, FRAME_R(58), r58
-	st.q	SP, FRAME_R(59), r59
-	st.q	SP, FRAME_R(60), r60
-	st.q	SP, FRAME_R(61), r61
-	st.q	SP, FRAME_R(62), r62
-
-	/*
-	 * Save the S* registers.
-	 */
-	getcon	SSR, r61
-	st.q	SP, FRAME_S(FSSR), r61
-	getcon	SPC, r62
-	st.q	SP, FRAME_S(FSPC), r62
-	movi	-1, r62			/* Reset syscall_nr */
-	st.q	SP, FRAME_S(FSYSCALL_ID), r62
-
-	/* Save the rest of the target registers */
-	gettr	tr1, r6
-	st.q	SP, FRAME_T(1), r6
-	gettr	tr2, r6
-	st.q	SP, FRAME_T(2), r6
-	gettr	tr3, r6
-	st.q	SP, FRAME_T(3), r6
-	gettr	tr4, r6
-	st.q	SP, FRAME_T(4), r6
-	gettr	tr5, r6
-	st.q	SP, FRAME_T(5), r6
-	gettr	tr6, r6
-	st.q	SP, FRAME_T(6), r6
-	gettr	tr7, r6
-	st.q	SP, FRAME_T(7), r6
-
-	! setup FP so that unwinder can wind back through nested kernel mode
-	! exceptions
-	add	SP, ZERO, r14
-
-#ifdef CONFIG_POOR_MANS_STRACE
-	/* We've pushed all the registers now, so only r2-r4 hold anything
-	 * useful. Move them into callee save registers */
-	or	r2, ZERO, r28
-	or	r3, ZERO, r29
-	or	r4, ZERO, r30
-
-	/* Preserve r2 as the event code */
-	movi	evt_debug, r3
-	ori	r3, 1, r3
-	ptabs	r3, tr0
-
-	or	SP, ZERO, r6
-	getcon	TRA, r5
-	blink	tr0, LINK
-
-	or	r28, ZERO, r2
-	or	r29, ZERO, r3
-	or	r30, ZERO, r4
-#endif
-
-	/* For syscall and debug race condition, get TRA now */
-	getcon	TRA, r5
-
-	/* We are in a safe position to turn SR.BL off, but set IMASK=0xf
-	 * Also set FD, to catch FPU usage in the kernel.
-	 *
-	 * benedict.gaster@superh.com 29/07/2002
-	 *
-	 * On all SH5-101 revisions it is unsafe to raise the IMASK and at the
-	 * same time change BL from 1->0, as any pending interrupt of a level
-	 * higher than he previous value of IMASK will leak through and be
-	 * taken unexpectedly.
-	 *
-	 * To avoid this we raise the IMASK and then issue another PUTCON to
-	 * enable interrupts.
-         */
-	getcon	SR, r6
-	movi	SR_IMASK | SR_FD, r7
-	or	r6, r7, r6
-	putcon	r6, SR
-	movi	SR_UNBLOCK_EXC, r7
-	and	r6, r7, r6
-	putcon	r6, SR
-
-
-	/* Now call the appropriate 3rd level handler */
-	or	r3, ZERO, LINK
-	movi	trap_jtable, r3
-	shlri	r2, 3, r2
-	ldx.l	r2, r3, r3
-	shlri	r2, 2, r2
-	ptabs	r3, tr0
-	or	SP, ZERO, r3
-	blink	tr0, ZERO
-
-/*
- * Second level handler for VBR-based exceptions. Post-handlers.
- *
- * Post-handlers for interrupts (ret_from_irq), exceptions
- * (ret_from_exception) and common reentrance doors (restore_all
- * to get back to the original context, ret_from_syscall loop to
- * check kernel exiting).
- *
- * ret_with_reschedule and work_notifysig are an inner lables of
- * the ret_from_syscall loop.
- *
- * In common to all stack-frame sensitive handlers.
- *
- * Inputs:
- * (SP)   struct pt_regs *, original register's frame pointer (basic)
- *
- */
-	.global ret_from_irq
-ret_from_irq:
-#ifdef CONFIG_POOR_MANS_STRACE
-	pta	evt_debug_ret_from_irq, tr0
-	ori	SP, 0, r2
-	blink	tr0, LINK
-#endif
-	ld.q	SP, FRAME_S(FSSR), r6
-	shlri	r6, 30, r6
-	andi	r6, 1, r6
-	pta	resume_kernel, tr0
-	bne	r6, ZERO, tr0		/* no further checks */
-	STI()
-	pta	ret_with_reschedule, tr0
-	blink	tr0, ZERO		/* Do not check softirqs */
-
-	.global ret_from_exception
-ret_from_exception:
-	preempt_stop()
-
-#ifdef CONFIG_POOR_MANS_STRACE
-	pta	evt_debug_ret_from_exc, tr0
-	ori	SP, 0, r2
-	blink	tr0, LINK
-#endif
-
-	ld.q	SP, FRAME_S(FSSR), r6
-	shlri	r6, 30, r6
-	andi	r6, 1, r6
-	pta	resume_kernel, tr0
-	bne	r6, ZERO, tr0		/* no further checks */
-
-	/* Check softirqs */
-
-#ifdef CONFIG_PREEMPT
-	pta   ret_from_syscall, tr0
-	blink   tr0, ZERO
-
-resume_kernel:
-	pta	restore_all, tr0
-
-	getcon	KCR0, r6
-	ld.l	r6, TI_PRE_COUNT, r7
-	beq/u	r7, ZERO, tr0
-
-need_resched:
-	ld.l	r6, TI_FLAGS, r7
-	movi	(1 << TIF_NEED_RESCHED), r8
-	and	r8, r7, r8
-	bne	r8, ZERO, tr0
-
-	getcon	SR, r7
-	andi	r7, 0xf0, r7
-	bne	r7, ZERO, tr0
-
-	movi	((PREEMPT_ACTIVE >> 16) & 65535), r8
-	shori	(PREEMPT_ACTIVE & 65535), r8
-	st.l	r6, TI_PRE_COUNT, r8
-
-	STI()
-	movi	schedule, r7
-	ori	r7, 1, r7
-	ptabs	r7, tr1
-	blink	tr1, LINK
-
-	st.l	r6, TI_PRE_COUNT, ZERO
-	CLI()
-
-	pta	need_resched, tr1
-	blink	tr1, ZERO
-#endif
-
-	.global ret_from_syscall
-ret_from_syscall:
-
-ret_with_reschedule:
-	getcon	KCR0, r6		! r6 contains current_thread_info
-	ld.l	r6, TI_FLAGS, r7	! r7 contains current_thread_info->flags
-
-	! FIXME:!!!
-	! no handling of TIF_SYSCALL_TRACE yet!!
-
-	movi	_TIF_NEED_RESCHED, r8
-	and	r8, r7, r8
-	pta	work_resched, tr0
-	bne	r8, ZERO, tr0
-
-	pta	restore_all, tr1
-
-	movi	(_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK), r8
-	and	r8, r7, r8
-	pta	work_notifysig, tr0
-	bne	r8, ZERO, tr0
-
-	blink	tr1, ZERO
-
-work_resched:
-	pta	ret_from_syscall, tr0
-	gettr	tr0, LINK
-	movi	schedule, r6
-	ptabs	r6, tr0
-	blink	tr0, ZERO		/* Call schedule(), return on top */
-
-work_notifysig:
-	gettr	tr1, LINK
-
-	movi	do_signal, r6
-	ptabs	r6, tr0
-	or	SP, ZERO, r2
-	or	ZERO, ZERO, r3
-	blink	tr0, LINK	    /* Call do_signal(regs, 0), return here */
-
-restore_all:
-	/* Do prefetches */
-
-	ld.q	SP, FRAME_T(0), r6
-	ld.q	SP, FRAME_T(1), r7
-	ld.q	SP, FRAME_T(2), r8
-	ld.q	SP, FRAME_T(3), r9
-	ptabs	r6, tr0
-	ptabs	r7, tr1
-	ptabs	r8, tr2
-	ptabs	r9, tr3
-	ld.q	SP, FRAME_T(4), r6
-	ld.q	SP, FRAME_T(5), r7
-	ld.q	SP, FRAME_T(6), r8
-	ld.q	SP, FRAME_T(7), r9
-	ptabs	r6, tr4
-	ptabs	r7, tr5
-	ptabs	r8, tr6
-	ptabs	r9, tr7
-
-	ld.q	SP, FRAME_R(0), r0
-	ld.q	SP, FRAME_R(1), r1
-	ld.q	SP, FRAME_R(2), r2
-	ld.q	SP, FRAME_R(3), r3
-	ld.q	SP, FRAME_R(4), r4
-	ld.q	SP, FRAME_R(5), r5
-	ld.q	SP, FRAME_R(6), r6
-	ld.q	SP, FRAME_R(7), r7
-	ld.q	SP, FRAME_R(8), r8
-	ld.q	SP, FRAME_R(9), r9
-	ld.q	SP, FRAME_R(10), r10
-	ld.q	SP, FRAME_R(11), r11
-	ld.q	SP, FRAME_R(12), r12
-	ld.q	SP, FRAME_R(13), r13
-	ld.q	SP, FRAME_R(14), r14
-
-	ld.q	SP, FRAME_R(16), r16
-	ld.q	SP, FRAME_R(17), r17
-	ld.q	SP, FRAME_R(18), r18
-	ld.q	SP, FRAME_R(19), r19
-	ld.q	SP, FRAME_R(20), r20
-	ld.q	SP, FRAME_R(21), r21
-	ld.q	SP, FRAME_R(22), r22
-	ld.q	SP, FRAME_R(23), r23
-	ld.q	SP, FRAME_R(24), r24
-	ld.q	SP, FRAME_R(25), r25
-	ld.q	SP, FRAME_R(26), r26
-	ld.q	SP, FRAME_R(27), r27
-	ld.q	SP, FRAME_R(28), r28
-	ld.q	SP, FRAME_R(29), r29
-	ld.q	SP, FRAME_R(30), r30
-	ld.q	SP, FRAME_R(31), r31
-	ld.q	SP, FRAME_R(32), r32
-	ld.q	SP, FRAME_R(33), r33
-	ld.q	SP, FRAME_R(34), r34
-	ld.q	SP, FRAME_R(35), r35
-	ld.q	SP, FRAME_R(36), r36
-	ld.q	SP, FRAME_R(37), r37
-	ld.q	SP, FRAME_R(38), r38
-	ld.q	SP, FRAME_R(39), r39
-	ld.q	SP, FRAME_R(40), r40
-	ld.q	SP, FRAME_R(41), r41
-	ld.q	SP, FRAME_R(42), r42
-	ld.q	SP, FRAME_R(43), r43
-	ld.q	SP, FRAME_R(44), r44
-	ld.q	SP, FRAME_R(45), r45
-	ld.q	SP, FRAME_R(46), r46
-	ld.q	SP, FRAME_R(47), r47
-	ld.q	SP, FRAME_R(48), r48
-	ld.q	SP, FRAME_R(49), r49
-	ld.q	SP, FRAME_R(50), r50
-	ld.q	SP, FRAME_R(51), r51
-	ld.q	SP, FRAME_R(52), r52
-	ld.q	SP, FRAME_R(53), r53
-	ld.q	SP, FRAME_R(54), r54
-	ld.q	SP, FRAME_R(55), r55
-	ld.q	SP, FRAME_R(56), r56
-	ld.q	SP, FRAME_R(57), r57
-	ld.q	SP, FRAME_R(58), r58
-
-	getcon	SR, r59
-	movi	SR_BLOCK_EXC, r60
-	or	r59, r60, r59
-	putcon	r59, SR			/* SR.BL = 1, keep nesting out */
-	ld.q	SP, FRAME_S(FSSR), r61
-	ld.q	SP, FRAME_S(FSPC), r62
-	movi	SR_ASID_MASK, r60
-	and	r59, r60, r59
-	andc	r61, r60, r61		/* Clear out older ASID */
-	or	r59, r61, r61		/* Retain current ASID */
-	putcon	r61, SSR
-	putcon	r62, SPC
-
-	/* Ignore FSYSCALL_ID */
-
-	ld.q	SP, FRAME_R(59), r59
-	ld.q	SP, FRAME_R(60), r60
-	ld.q	SP, FRAME_R(61), r61
-	ld.q	SP, FRAME_R(62), r62
-
-	/* Last touch */
-	ld.q	SP, FRAME_R(15), SP
-	rte
-	nop
-
-/*
- * Third level handlers for VBR-based exceptions. Adapting args to
- * and/or deflecting to fourth level handlers.
- *
- * Fourth level handlers interface.
- * Most are C-coded handlers directly pointed by the trap_jtable.
- * (Third = Fourth level)
- * Inputs:
- * (r2)   fault/interrupt code, entry number (e.g. NMI = 14,
- *	  IRL0-3 (0000) = 16, RTLBMISS = 2, SYSCALL = 11, etc ...)
- * (r3)   struct pt_regs *, original register's frame pointer
- * (r4)   Event (0 = interrupt, 1 = TLB miss fault, 2 = Not TLB miss fault)
- * (r5)   TRA control register (for syscall/debug benefit only)
- * (LINK) return address
- * (SP)   = r3
- *
- * Kernel TLB fault handlers will get a slightly different interface.
- * (r2)   struct pt_regs *, original register's frame pointer
- * (r3)   writeaccess, whether it's a store fault as opposed to load fault
- * (r4)   execaccess, whether it's a ITLB fault as opposed to DTLB fault
- * (r5)   Effective Address of fault
- * (LINK) return address
- * (SP)   = r2
- *
- * fpu_error_or_IRQ? is a helper to deflect to the right cause.
- *
- */
-tlb_miss_load:
-	or	SP, ZERO, r2
-	or	ZERO, ZERO, r3		/* Read */
-	or	ZERO, ZERO, r4		/* Data */
-	getcon	TEA, r5
-	pta	call_do_page_fault, tr0
-	beq	ZERO, ZERO, tr0
-
-tlb_miss_store:
-	or	SP, ZERO, r2
-	movi	1, r3			/* Write */
-	or	ZERO, ZERO, r4		/* Data */
-	getcon	TEA, r5
-	pta	call_do_page_fault, tr0
-	beq	ZERO, ZERO, tr0
-
-itlb_miss_or_IRQ:
-	pta	its_IRQ, tr0
-	beqi/u	r4, EVENT_INTERRUPT, tr0
-	or	SP, ZERO, r2
-	or	ZERO, ZERO, r3		/* Read */
-	movi	1, r4			/* Text */
-	getcon	TEA, r5
-	/* Fall through */
-
-call_do_page_fault:
-	movi	do_page_fault, r6
-        ptabs	r6, tr0
-        blink	tr0, ZERO
-
-fpu_error_or_IRQA:
-	pta	its_IRQ, tr0
-	beqi/l	r4, EVENT_INTERRUPT, tr0
-#ifdef CONFIG_SH_FPU
-	movi	do_fpu_state_restore, r6
-#else
-	movi	do_exception_error, r6
-#endif
-	ptabs	r6, tr0
-	blink	tr0, ZERO
-
-fpu_error_or_IRQB:
-	pta	its_IRQ, tr0
-	beqi/l	r4, EVENT_INTERRUPT, tr0
-#ifdef CONFIG_SH_FPU
-	movi	do_fpu_state_restore, r6
-#else
-	movi	do_exception_error, r6
-#endif
-	ptabs	r6, tr0
-	blink	tr0, ZERO
-
-its_IRQ:
-	movi	do_IRQ, r6
-	ptabs	r6, tr0
-	blink	tr0, ZERO
-
-/*
- * system_call/unknown_trap third level handler:
- *
- * Inputs:
- * (r2)   fault/interrupt code, entry number (TRAP = 11)
- * (r3)   struct pt_regs *, original register's frame pointer
- * (r4)   Not used. Event (0=interrupt, 1=TLB miss fault, 2=Not TLB miss fault)
- * (r5)   TRA Control Reg (0x00xyzzzz: x=1 SYSCALL, y = #args, z=nr)
- * (SP)   = r3
- * (LINK) return address: ret_from_exception
- * (*r3)  Syscall parms: SC#, arg0, arg1, ..., arg5 in order (Saved r2/r7)
- *
- * Outputs:
- * (*r3)  Syscall reply (Saved r2)
- * (LINK) In case of syscall only it can be scrapped.
- *        Common second level post handler will be ret_from_syscall.
- *        Common (non-trace) exit point to that is syscall_ret (saving
- *        result to r2). Common bad exit point is syscall_bad (returning
- *        ENOSYS then saved to r2).
- *
- */
-
-unknown_trap:
-	/* Unknown Trap or User Trace */
-	movi	do_unknown_trapa, r6
-	ptabs	r6, tr0
-        ld.q    r3, FRAME_R(9), r2	/* r2 = #arg << 16 | syscall # */
-        andi    r2, 0x1ff, r2		/* r2 = syscall # */
-	blink	tr0, LINK
-
-	pta	syscall_ret, tr0
-	blink	tr0, ZERO
-
-        /* New syscall implementation*/
-system_call:
-	pta	unknown_trap, tr0
-        or      r5, ZERO, r4            /* TRA (=r5) -> r4 */
-        shlri   r4, 20, r4
-	bnei	r4, 1, tr0		/* unknown_trap if not 0x1yzzzz */
-
-        /* It's a system call */
-	st.q    r3, FRAME_S(FSYSCALL_ID), r5 	/* ID (0x1yzzzz) -> stack */
-	andi    r5, 0x1ff, r5			/* syscall # -> r5	  */
-
-	STI()
-
-	pta	syscall_allowed, tr0
-	movi	NR_syscalls - 1, r4	/* Last valid */
-	bgeu/l	r4, r5, tr0
-
-syscall_bad:
-	/* Return ENOSYS ! */
-	movi	-(ENOSYS), r2		/* Fall-through */
-
-	.global syscall_ret
-syscall_ret:
-	st.q	SP, FRAME_R(9), r2	/* Expecting SP back to BASIC frame */
-
-#ifdef CONFIG_POOR_MANS_STRACE
-	/* nothing useful in registers at this point */
-
-	movi	evt_debug2, r5
-	ori	r5, 1, r5
-	ptabs	r5, tr0
-	ld.q	SP, FRAME_R(9), r2
-	or	SP, ZERO, r3
-	blink	tr0, LINK
-#endif
-
-	ld.q	SP, FRAME_S(FSPC), r2
-	addi	r2, 4, r2		/* Move PC, being pre-execution event */
-	st.q	SP, FRAME_S(FSPC), r2
-	pta	ret_from_syscall, tr0
-	blink	tr0, ZERO
-
-
-/*  A different return path for ret_from_fork, because we now need
- *  to call schedule_tail with the later kernels. Because prev is
- *  loaded into r2 by switch_to() means we can just call it straight  away
- */
-
-.global	ret_from_fork
-ret_from_fork:
-
-	movi	schedule_tail,r5
-	ori	r5, 1, r5
-	ptabs	r5, tr0
-	blink	tr0, LINK
-
-#ifdef CONFIG_POOR_MANS_STRACE
-	/* nothing useful in registers at this point */
-
-	movi	evt_debug2, r5
-	ori	r5, 1, r5
-	ptabs	r5, tr0
-	ld.q	SP, FRAME_R(9), r2
-	or	SP, ZERO, r3
-	blink	tr0, LINK
-#endif
-
-	ld.q	SP, FRAME_S(FSPC), r2
-	addi	r2, 4, r2		/* Move PC, being pre-execution event */
-	st.q	SP, FRAME_S(FSPC), r2
-	pta	ret_from_syscall, tr0
-	blink	tr0, ZERO
-
-
-
-syscall_allowed:
-	/* Use LINK to deflect the exit point, default is syscall_ret */
-	pta	syscall_ret, tr0
-	gettr	tr0, LINK
-	pta	syscall_notrace, tr0
-
-	getcon	KCR0, r2
-	ld.l	r2, TI_FLAGS, r4
-	movi	(1 << TIF_SYSCALL_TRACE), r6
-	and	r6, r4, r6
-	beq/l	r6, ZERO, tr0
-
-	/* Trace it by calling syscall_trace before and after */
-	movi	syscall_trace, r4
-	ptabs	r4, tr0
-	blink	tr0, LINK
-	/* Reload syscall number as r5 is trashed by syscall_trace */
-	ld.q	SP, FRAME_S(FSYSCALL_ID), r5
-	andi	r5, 0x1ff, r5
-
-	pta	syscall_ret_trace, tr0
-	gettr	tr0, LINK
-
-syscall_notrace:
-	/* Now point to the appropriate 4th level syscall handler */
-	movi	sys_call_table, r4
-	shlli	r5, 2, r5
-	ldx.l	r4, r5, r5
-	ptabs	r5, tr0
-
-	/* Prepare original args */
-	ld.q	SP, FRAME_R(2), r2
-	ld.q	SP, FRAME_R(3), r3
-	ld.q	SP, FRAME_R(4), r4
-	ld.q	SP, FRAME_R(5), r5
-	ld.q	SP, FRAME_R(6), r6
-	ld.q	SP, FRAME_R(7), r7
-
-	/* And now the trick for those syscalls requiring regs * ! */
-	or	SP, ZERO, r8
-
-	/* Call it */
-	blink	tr0, ZERO	/* LINK is already properly set */
-
-syscall_ret_trace:
-	/* We get back here only if under trace */
-	st.q	SP, FRAME_R(9), r2	/* Save return value */
-
-	movi	syscall_trace, LINK
-	ptabs	LINK, tr0
-	blink	tr0, LINK
-
-	/* This needs to be done after any syscall tracing */
-	ld.q	SP, FRAME_S(FSPC), r2
-	addi	r2, 4, r2	/* Move PC, being pre-execution event */
-	st.q	SP, FRAME_S(FSPC), r2
-
-	pta	ret_from_syscall, tr0
-	blink	tr0, ZERO		/* Resume normal return sequence */
-
-/*
- * --- Switch to running under a particular ASID and return the previous ASID value
- * --- The caller is assumed to have done a cli before calling this.
- *
- * Input r2 : new ASID
- * Output r2 : old ASID
- */
-
-	.global switch_and_save_asid
-switch_and_save_asid:
-	getcon	sr, r0
-	movi	255, r4
-	shlli 	r4, 16, r4	/* r4 = mask to select ASID */
-	and	r0, r4, r3	/* r3 = shifted old ASID */
-	andi	r2, 255, r2	/* mask down new ASID */
-	shlli	r2, 16, r2	/* align new ASID against SR.ASID */
-	andc	r0, r4, r0	/* efface old ASID from SR */
-	or	r0, r2, r0	/* insert the new ASID */
-	putcon	r0, ssr
-	movi	1f, r0
-	putcon	r0, spc
-	rte
-	nop
-1:
-	ptabs	LINK, tr0
-	shlri	r3, 16, r2	/* r2 = old ASID */
-	blink tr0, r63
-
-	.global	route_to_panic_handler
-route_to_panic_handler:
-	/* Switch to real mode, goto panic_handler, don't return.  Useful for
-	   last-chance debugging, e.g. if no output wants to go to the console.
-	   */
-
-	movi	panic_handler - CONFIG_CACHED_MEMORY_OFFSET, r1
-	ptabs	r1, tr0
-	pta	1f, tr1
-	gettr	tr1, r0
-	putcon	r0, spc
-	getcon	sr, r0
-	movi	1, r1
-	shlli	r1, 31, r1
-	andc	r0, r1, r0
-	putcon	r0, ssr
-	rte
-	nop
-1:	/* Now in real mode */
-	blink tr0, r63
-	nop
-
-	.global peek_real_address_q
-peek_real_address_q:
-	/* Two args:
-	   r2 : real mode address to peek
-	   r2(out) : result quadword
-
-	   This is provided as a cheapskate way of manipulating device
-	   registers for debugging (to avoid the need to onchip_remap the debug
-	   module, and to avoid the need to onchip_remap the watchpoint
-	   controller in a way that identity maps sufficient bits to avoid the
-	   SH5-101 cut2 silicon defect).
-
-	   This code is not performance critical
-	*/
-
-	add.l	r2, r63, r2	/* sign extend address */
-	getcon	sr, r0		/* r0 = saved original SR */
-	movi	1, r1
-	shlli	r1, 28, r1
-	or	r0, r1, r1	/* r0 with block bit set */
-	putcon	r1, sr		/* now in critical section */
-	movi	1, r36
-	shlli	r36, 31, r36
-	andc	r1, r36, r1	/* turn sr.mmu off in real mode section */
-
-	putcon	r1, ssr
-	movi	.peek0 - CONFIG_CACHED_MEMORY_OFFSET, r36 /* real mode target address */
-	movi	1f, r37		/* virtual mode return addr */
-	putcon	r36, spc
-
-	synco
-	rte
-	nop
-
-.peek0:	/* come here in real mode, don't touch caches!!
-           still in critical section (sr.bl==1) */
-	putcon	r0, ssr
-	putcon	r37, spc
-	/* Here's the actual peek.  If the address is bad, all bets are now off
-	 * what will happen (handlers invoked in real-mode = bad news) */
-	ld.q	r2, 0, r2
-	synco
-	rte	/* Back to virtual mode */
-	nop
-
-1:
-	ptabs	LINK, tr0
-	blink	tr0, r63
-
-	.global poke_real_address_q
-poke_real_address_q:
-	/* Two args:
-	   r2 : real mode address to poke
-	   r3 : quadword value to write.
-
-	   This is provided as a cheapskate way of manipulating device
-	   registers for debugging (to avoid the need to onchip_remap the debug
-	   module, and to avoid the need to onchip_remap the watchpoint
-	   controller in a way that identity maps sufficient bits to avoid the
-	   SH5-101 cut2 silicon defect).
-
-	   This code is not performance critical
-	*/
-
-	add.l	r2, r63, r2	/* sign extend address */
-	getcon	sr, r0		/* r0 = saved original SR */
-	movi	1, r1
-	shlli	r1, 28, r1
-	or	r0, r1, r1	/* r0 with block bit set */
-	putcon	r1, sr		/* now in critical section */
-	movi	1, r36
-	shlli	r36, 31, r36
-	andc	r1, r36, r1	/* turn sr.mmu off in real mode section */
-
-	putcon	r1, ssr
-	movi	.poke0-CONFIG_CACHED_MEMORY_OFFSET, r36 /* real mode target address */
-	movi	1f, r37		/* virtual mode return addr */
-	putcon	r36, spc
-
-	synco
-	rte
-	nop
-
-.poke0:	/* come here in real mode, don't touch caches!!
-           still in critical section (sr.bl==1) */
-	putcon	r0, ssr
-	putcon	r37, spc
-	/* Here's the actual poke.  If the address is bad, all bets are now off
-	 * what will happen (handlers invoked in real-mode = bad news) */
-	st.q	r2, 0, r3
-	synco
-	rte	/* Back to virtual mode */
-	nop
-
-1:
-	ptabs	LINK, tr0
-	blink	tr0, r63
-
-/*
- * --- User Access Handling Section
- */
-
-/*
- * User Access support. It all moved to non inlined Assembler
- * functions in here.
- *
- * __kernel_size_t __copy_user(void *__to, const void *__from,
- *			       __kernel_size_t __n)
- *
- * Inputs:
- * (r2)  target address
- * (r3)  source address
- * (r4)  size in bytes
- *
- * Ouputs:
- * (*r2) target data
- * (r2)  non-copied bytes
- *
- * If a fault occurs on the user pointer, bail out early and return the
- * number of bytes not copied in r2.
- * Strategy : for large blocks, call a real memcpy function which can
- * move >1 byte at a time using unaligned ld/st instructions, and can
- * manipulate the cache using prefetch + alloco to improve the speed
- * further.  If a fault occurs in that function, just revert to the
- * byte-by-byte approach used for small blocks; this is rare so the
- * performance hit for that case does not matter.
- *
- * For small blocks it's not worth the overhead of setting up and calling
- * the memcpy routine; do the copy a byte at a time.
- *
- */
-	.global	__copy_user
-__copy_user:
-	pta	__copy_user_byte_by_byte, tr1
-	movi	16, r0 ! this value is a best guess, should tune it by benchmarking
-	bge/u	r0, r4, tr1
-	pta copy_user_memcpy, tr0
-	addi	SP, -32, SP
-	/* Save arguments in case we have to fix-up unhandled page fault */
-	st.q	SP, 0, r2
-	st.q	SP, 8, r3
-	st.q	SP, 16, r4
-	st.q	SP, 24, r35 ! r35 is callee-save
-	/* Save LINK in a register to reduce RTS time later (otherwise
-	   ld SP,*,LINK;ptabs LINK;trn;blink trn,r63 becomes a critical path) */
-	ori	LINK, 0, r35
-	blink	tr0, LINK
-
-	/* Copy completed normally if we get back here */
-	ptabs	r35, tr0
-	ld.q	SP, 24, r35
-	/* don't restore r2-r4, pointless */
-	/* set result=r2 to zero as the copy must have succeeded. */
-	or	r63, r63, r2
-	addi	SP, 32, SP
-	blink	tr0, r63 ! RTS
-
-	.global __copy_user_fixup
-__copy_user_fixup:
-	/* Restore stack frame */
-	ori	r35, 0, LINK
-	ld.q	SP, 24, r35
-	ld.q	SP, 16, r4
-	ld.q	SP,  8, r3
-	ld.q	SP,  0, r2
-	addi	SP, 32, SP
-	/* Fall through to original code, in the 'same' state we entered with */
-
-/* The slow byte-by-byte method is used if the fast copy traps due to a bad
-   user address.  In that rare case, the speed drop can be tolerated. */
-__copy_user_byte_by_byte:
-	pta	___copy_user_exit, tr1
-	pta	___copy_user1, tr0
-	beq/u	r4, r63, tr1	/* early exit for zero length copy */
-	sub	r2, r3, r0
-	addi	r0, -1, r0
-
-___copy_user1:
-	ld.b	r3, 0, r5		/* Fault address 1 */
-
-	/* Could rewrite this to use just 1 add, but the second comes 'free'
-	   due to load latency */
-	addi	r3, 1, r3
-	addi	r4, -1, r4		/* No real fixup required */
-___copy_user2:
-	stx.b	r3, r0, r5		/* Fault address 2 */
-	bne     r4, ZERO, tr0
-
-___copy_user_exit:
-	or	r4, ZERO, r2
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
-/*
- * __kernel_size_t __clear_user(void *addr, __kernel_size_t size)
- *
- * Inputs:
- * (r2)  target address
- * (r3)  size in bytes
- *
- * Ouputs:
- * (*r2) zero-ed target data
- * (r2)  non-zero-ed bytes
- */
-	.global	__clear_user
-__clear_user:
-	pta	___clear_user_exit, tr1
-	pta	___clear_user1, tr0
-	beq/u	r3, r63, tr1
-
-___clear_user1:
-	st.b	r2, 0, ZERO		/* Fault address */
-	addi	r2, 1, r2
-	addi	r3, -1, r3		/* No real fixup required */
-	bne     r3, ZERO, tr0
-
-___clear_user_exit:
-	or	r3, ZERO, r2
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
-
-/*
- * int __strncpy_from_user(unsigned long __dest, unsigned long __src,
- *			   int __count)
- *
- * Inputs:
- * (r2)  target address
- * (r3)  source address
- * (r4)  maximum size in bytes
- *
- * Ouputs:
- * (*r2) copied data
- * (r2)  -EFAULT (in case of faulting)
- *       copied data (otherwise)
- */
-	.global	__strncpy_from_user
-__strncpy_from_user:
-	pta	___strncpy_from_user1, tr0
-	pta	___strncpy_from_user_done, tr1
-	or	r4, ZERO, r5		/* r5 = original count */
-	beq/u	r4, r63, tr1		/* early exit if r4==0 */
-	movi	-(EFAULT), r6		/* r6 = reply, no real fixup */
-	or	ZERO, ZERO, r7		/* r7 = data, clear top byte of data */
-
-___strncpy_from_user1:
-	ld.b	r3, 0, r7		/* Fault address: only in reading */
-	st.b	r2, 0, r7
-	addi	r2, 1, r2
-	addi	r3, 1, r3
-	beq/u	ZERO, r7, tr1
-	addi	r4, -1, r4		/* return real number of copied bytes */
-	bne/l	ZERO, r4, tr0
-
-___strncpy_from_user_done:
-	sub	r5, r4, r6		/* If done, return copied */
-
-___strncpy_from_user_exit:
-	or	r6, ZERO, r2
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
-/*
- * extern long __strnlen_user(const char *__s, long __n)
- *
- * Inputs:
- * (r2)  source address
- * (r3)  source size in bytes
- *
- * Ouputs:
- * (r2)  -EFAULT (in case of faulting)
- *       string length (otherwise)
- */
-	.global	__strnlen_user
-__strnlen_user:
-	pta	___strnlen_user_set_reply, tr0
-	pta	___strnlen_user1, tr1
-	or	ZERO, ZERO, r5		/* r5 = counter */
-	movi	-(EFAULT), r6		/* r6 = reply, no real fixup */
-	or	ZERO, ZERO, r7		/* r7 = data, clear top byte of data */
-	beq	r3, ZERO, tr0
-
-___strnlen_user1:
-	ldx.b	r2, r5, r7		/* Fault address: only in reading */
-	addi	r3, -1, r3		/* No real fixup */
-	addi	r5, 1, r5
-	beq	r3, ZERO, tr0
-	bne	r7, ZERO, tr1
-! The line below used to be active.  This meant led to a junk byte lying between each pair
-! of entries in the argv & envp structures in memory.  Whilst the program saw the right data
-! via the argv and envp arguments to main, it meant the 'flat' representation visible through
-! /proc/$pid/cmdline was corrupt, causing trouble with ps, for example.
-!	addi	r5, 1, r5		/* Include '\0' */
-
-___strnlen_user_set_reply:
-	or	r5, ZERO, r6		/* If done, return counter */
-
-___strnlen_user_exit:
-	or	r6, ZERO, r2
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
-/*
- * extern long __get_user_asm_?(void *val, long addr)
- *
- * Inputs:
- * (r2)  dest address
- * (r3)  source address (in User Space)
- *
- * Ouputs:
- * (r2)  -EFAULT (faulting)
- *       0 	 (not faulting)
- */
-	.global	__get_user_asm_b
-__get_user_asm_b:
-	or	r2, ZERO, r4
-	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
-
-___get_user_asm_b1:
-	ld.b	r3, 0, r5		/* r5 = data */
-	st.b	r4, 0, r5
-	or	ZERO, ZERO, r2
-
-___get_user_asm_b_exit:
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
-
-	.global	__get_user_asm_w
-__get_user_asm_w:
-	or	r2, ZERO, r4
-	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
-
-___get_user_asm_w1:
-	ld.w	r3, 0, r5		/* r5 = data */
-	st.w	r4, 0, r5
-	or	ZERO, ZERO, r2
-
-___get_user_asm_w_exit:
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
-
-	.global	__get_user_asm_l
-__get_user_asm_l:
-	or	r2, ZERO, r4
-	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
-
-___get_user_asm_l1:
-	ld.l	r3, 0, r5		/* r5 = data */
-	st.l	r4, 0, r5
-	or	ZERO, ZERO, r2
-
-___get_user_asm_l_exit:
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
-
-	.global	__get_user_asm_q
-__get_user_asm_q:
-	or	r2, ZERO, r4
-	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
-
-___get_user_asm_q1:
-	ld.q	r3, 0, r5		/* r5 = data */
-	st.q	r4, 0, r5
-	or	ZERO, ZERO, r2
-
-___get_user_asm_q_exit:
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
-/*
- * extern long __put_user_asm_?(void *pval, long addr)
- *
- * Inputs:
- * (r2)  kernel pointer to value
- * (r3)  dest address (in User Space)
- *
- * Ouputs:
- * (r2)  -EFAULT (faulting)
- *       0 	 (not faulting)
- */
-	.global	__put_user_asm_b
-__put_user_asm_b:
-	ld.b	r2, 0, r4		/* r4 = data */
-	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
-
-___put_user_asm_b1:
-	st.b	r3, 0, r4
-	or	ZERO, ZERO, r2
-
-___put_user_asm_b_exit:
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
-
-	.global	__put_user_asm_w
-__put_user_asm_w:
-	ld.w	r2, 0, r4		/* r4 = data */
-	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
-
-___put_user_asm_w1:
-	st.w	r3, 0, r4
-	or	ZERO, ZERO, r2
-
-___put_user_asm_w_exit:
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
-
-	.global	__put_user_asm_l
-__put_user_asm_l:
-	ld.l	r2, 0, r4		/* r4 = data */
-	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
-
-___put_user_asm_l1:
-	st.l	r3, 0, r4
-	or	ZERO, ZERO, r2
-
-___put_user_asm_l_exit:
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
-
-	.global	__put_user_asm_q
-__put_user_asm_q:
-	ld.q	r2, 0, r4		/* r4 = data */
-	movi	-(EFAULT), r2		/* r2 = reply, no real fixup */
-
-___put_user_asm_q1:
-	st.q	r3, 0, r4
-	or	ZERO, ZERO, r2
-
-___put_user_asm_q_exit:
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
-panic_stash_regs:
-	/* The idea is : when we get an unhandled panic, we dump the registers
-	   to a known memory location, the just sit in a tight loop.
-	   This allows the human to look at the memory region through the GDB
-	   session (assuming the debug module's SHwy initiator isn't locked up
-	   or anything), to hopefully analyze the cause of the panic. */
-
-	/* On entry, former r15 (SP) is in DCR
-	   former r0  is at resvec_saved_area + 0
-	   former r1  is at resvec_saved_area + 8
-	   former tr0 is at resvec_saved_area + 32
-	   DCR is the only register whose value is lost altogether.
-	*/
-
-	movi	0xffffffff80000000, r0 ! phy of dump area
-	ld.q	SP, 0x000, r1	! former r0
-	st.q	r0,  0x000, r1
-	ld.q	SP, 0x008, r1	! former r1
-	st.q	r0,  0x008, r1
-	st.q	r0,  0x010, r2
-	st.q	r0,  0x018, r3
-	st.q	r0,  0x020, r4
-	st.q	r0,  0x028, r5
-	st.q	r0,  0x030, r6
-	st.q	r0,  0x038, r7
-	st.q	r0,  0x040, r8
-	st.q	r0,  0x048, r9
-	st.q	r0,  0x050, r10
-	st.q	r0,  0x058, r11
-	st.q	r0,  0x060, r12
-	st.q	r0,  0x068, r13
-	st.q	r0,  0x070, r14
-	getcon	dcr, r14
-	st.q	r0,  0x078, r14
-	st.q	r0,  0x080, r16
-	st.q	r0,  0x088, r17
-	st.q	r0,  0x090, r18
-	st.q	r0,  0x098, r19
-	st.q	r0,  0x0a0, r20
-	st.q	r0,  0x0a8, r21
-	st.q	r0,  0x0b0, r22
-	st.q	r0,  0x0b8, r23
-	st.q	r0,  0x0c0, r24
-	st.q	r0,  0x0c8, r25
-	st.q	r0,  0x0d0, r26
-	st.q	r0,  0x0d8, r27
-	st.q	r0,  0x0e0, r28
-	st.q	r0,  0x0e8, r29
-	st.q	r0,  0x0f0, r30
-	st.q	r0,  0x0f8, r31
-	st.q	r0,  0x100, r32
-	st.q	r0,  0x108, r33
-	st.q	r0,  0x110, r34
-	st.q	r0,  0x118, r35
-	st.q	r0,  0x120, r36
-	st.q	r0,  0x128, r37
-	st.q	r0,  0x130, r38
-	st.q	r0,  0x138, r39
-	st.q	r0,  0x140, r40
-	st.q	r0,  0x148, r41
-	st.q	r0,  0x150, r42
-	st.q	r0,  0x158, r43
-	st.q	r0,  0x160, r44
-	st.q	r0,  0x168, r45
-	st.q	r0,  0x170, r46
-	st.q	r0,  0x178, r47
-	st.q	r0,  0x180, r48
-	st.q	r0,  0x188, r49
-	st.q	r0,  0x190, r50
-	st.q	r0,  0x198, r51
-	st.q	r0,  0x1a0, r52
-	st.q	r0,  0x1a8, r53
-	st.q	r0,  0x1b0, r54
-	st.q	r0,  0x1b8, r55
-	st.q	r0,  0x1c0, r56
-	st.q	r0,  0x1c8, r57
-	st.q	r0,  0x1d0, r58
-	st.q	r0,  0x1d8, r59
-	st.q	r0,  0x1e0, r60
-	st.q	r0,  0x1e8, r61
-	st.q	r0,  0x1f0, r62
-	st.q	r0,  0x1f8, r63	! bogus, but for consistency's sake...
-
-	ld.q	SP, 0x020, r1  ! former tr0
-	st.q	r0,  0x200, r1
-	gettr	tr1, r1
-	st.q	r0,  0x208, r1
-	gettr	tr2, r1
-	st.q	r0,  0x210, r1
-	gettr	tr3, r1
-	st.q	r0,  0x218, r1
-	gettr	tr4, r1
-	st.q	r0,  0x220, r1
-	gettr	tr5, r1
-	st.q	r0,  0x228, r1
-	gettr	tr6, r1
-	st.q	r0,  0x230, r1
-	gettr	tr7, r1
-	st.q	r0,  0x238, r1
-
-	getcon	sr,  r1
-	getcon	ssr,  r2
-	getcon	pssr,  r3
-	getcon	spc,  r4
-	getcon	pspc,  r5
-	getcon	intevt,  r6
-	getcon	expevt,  r7
-	getcon	pexpevt,  r8
-	getcon	tra,  r9
-	getcon	tea,  r10
-	getcon	kcr0, r11
-	getcon	kcr1, r12
-	getcon	vbr,  r13
-	getcon	resvec,  r14
-
-	st.q	r0,  0x240, r1
-	st.q	r0,  0x248, r2
-	st.q	r0,  0x250, r3
-	st.q	r0,  0x258, r4
-	st.q	r0,  0x260, r5
-	st.q	r0,  0x268, r6
-	st.q	r0,  0x270, r7
-	st.q	r0,  0x278, r8
-	st.q	r0,  0x280, r9
-	st.q	r0,  0x288, r10
-	st.q	r0,  0x290, r11
-	st.q	r0,  0x298, r12
-	st.q	r0,  0x2a0, r13
-	st.q	r0,  0x2a8, r14
-
-	getcon	SPC,r2
-	getcon	SSR,r3
-	getcon	EXPEVT,r4
-	/* Prepare to jump to C - physical address */
-	movi	panic_handler-CONFIG_CACHED_MEMORY_OFFSET, r1
-	ori	r1, 1, r1
-	ptabs   r1, tr0
-	getcon	DCR, SP
-	blink	tr0, ZERO
-	nop
-	nop
-	nop
-	nop
-
-
-
-
-/*
- * --- Signal Handling Section
- */
-
-/*
- * extern long long _sa_default_rt_restorer
- * extern long long _sa_default_restorer
- *
- *		 or, better,
- *
- * extern void _sa_default_rt_restorer(void)
- * extern void _sa_default_restorer(void)
- *
- * Code prototypes to do a sys_rt_sigreturn() or sys_sysreturn()
- * from user space. Copied into user space by signal management.
- * Both must be quad aligned and 2 quad long (4 instructions).
- *
- */
-	.balign 8
-	.global sa_default_rt_restorer
-sa_default_rt_restorer:
-	movi	0x10, r9
-	shori	__NR_rt_sigreturn, r9
-	trapa	r9
-	nop
-
-	.balign 8
-	.global sa_default_restorer
-sa_default_restorer:
-	movi	0x10, r9
-	shori	__NR_sigreturn, r9
-	trapa	r9
-	nop
-
-/*
- * --- __ex_table Section
- */
-
-/*
- * User Access Exception Table.
- */
-	.section	__ex_table,  "a"
-
-	.global asm_uaccess_start	/* Just a marker */
-asm_uaccess_start:
-
-	.long	___copy_user1, ___copy_user_exit
-	.long	___copy_user2, ___copy_user_exit
-	.long	___clear_user1, ___clear_user_exit
-	.long	___strncpy_from_user1, ___strncpy_from_user_exit
-	.long	___strnlen_user1, ___strnlen_user_exit
-	.long	___get_user_asm_b1, ___get_user_asm_b_exit
-	.long	___get_user_asm_w1, ___get_user_asm_w_exit
-	.long	___get_user_asm_l1, ___get_user_asm_l_exit
-	.long	___get_user_asm_q1, ___get_user_asm_q_exit
-	.long	___put_user_asm_b1, ___put_user_asm_b_exit
-	.long	___put_user_asm_w1, ___put_user_asm_w_exit
-	.long	___put_user_asm_l1, ___put_user_asm_l_exit
-	.long	___put_user_asm_q1, ___put_user_asm_q_exit
-
-	.global asm_uaccess_end		/* Just a marker */
-asm_uaccess_end:
-
-
-
-
-/*
- * --- .text.init Section
- */
-
-	.section	.text.init, "ax"
-
-/*
- * void trap_init (void)
- *
- */
-	.global	trap_init
-trap_init:
-	addi	SP, -24, SP			/* Room to save r28/r29/r30 */
-	st.q	SP, 0, r28
-	st.q	SP, 8, r29
-	st.q	SP, 16, r30
-
-	/* Set VBR and RESVEC */
-	movi	LVBR_block, r19
-	andi	r19, -4, r19			/* reset MMUOFF + reserved */
-	/* For RESVEC exceptions we force the MMU off, which means we need the
-	   physical address. */
-	movi	LRESVEC_block-CONFIG_CACHED_MEMORY_OFFSET, r20
-	andi	r20, -4, r20			/* reset reserved */
-	ori	r20, 1, r20			/* set MMUOFF */
-	putcon	r19, VBR
-	putcon	r20, RESVEC
-
-	/* Sanity check */
-	movi	LVBR_block_end, r21
-	andi	r21, -4, r21
-	movi	BLOCK_SIZE, r29			/* r29 = expected size */
-	or	r19, ZERO, r30
-	add	r19, r29, r19
-
-	/*
-	 * Ugly, but better loop forever now than crash afterwards.
-	 * We should print a message, but if we touch LVBR or
-	 * LRESVEC blocks we should not be surprised if we get stuck
-	 * in trap_init().
-	 */
-	pta	trap_init_loop, tr1
-	gettr	tr1, r28			/* r28 = trap_init_loop */
-	sub	r21, r30, r30			/* r30 = actual size */
-
-	/*
-	 * VBR/RESVEC handlers overlap by being bigger than
-	 * allowed. Very bad. Just loop forever.
-	 * (r28) panic/loop address
-	 * (r29) expected size
-	 * (r30) actual size
-	 */
-trap_init_loop:
-	bne	r19, r21, tr1
-
-	/* Now that exception vectors are set up reset SR.BL */
-	getcon 	SR, r22
-	movi	SR_UNBLOCK_EXC, r23
-	and	r22, r23, r22
-	putcon	r22, SR
-
-	addi	SP, 24, SP
-	ptabs	LINK, tr0
-	blink	tr0, ZERO
-
diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h
index 76c4dc7021cb..f3bd82e95898 100644
--- a/include/asm-sh/processor.h
+++ b/include/asm-sh/processor.h
@@ -3,6 +3,8 @@
 
 #include <asm/cpu-features.h>
 
+#ifndef __ASSEMBLY__
+
 /*
  *  CPU type and hardware bug flags. Kept separately for each CPU.
  *
@@ -40,11 +42,8 @@ enum cpu_type {
 	CPU_SH_NONE
 };
 
-#ifdef CONFIG_SUPERH32
-# include "processor_32.h"
-#else
-# include "processor_64.h"
-#endif
+/* Forward decl */
+struct sh_cpuinfo;
 
 /* arch/sh/kernel/setup.c */
 const char *get_cpu_subtype(struct sh_cpuinfo *c);
@@ -55,4 +54,12 @@ int vsyscall_init(void);
 #define vsyscall_init() do { } while (0)
 #endif
 
+#endif /* __ASSEMBLY__ */
+
+#ifdef CONFIG_SUPERH32
+# include "processor_32.h"
+#else
+# include "processor_64.h"
+#endif
+
 #endif /* __ASM_SH_PROCESSOR_H */
-- 
cgit v1.2.3-59-g8ed1b


From 4b7be4f2e0235c6824641503e2a8ff3b85e105d7 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 18:22:55 +0900
Subject: sh: Split out sh_ksyms.c in to _32 and _64 variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile_32   |   2 +-
 arch/sh/kernel/Makefile_64   |   2 +-
 arch/sh/kernel/sh_ksyms.c    | 152 -------------------------------------------
 arch/sh/kernel/sh_ksyms_32.c | 150 ++++++++++++++++++++++++++++++++++++++++++
 arch/sh/kernel/sh_ksyms_64.c |  56 ++++++++++++++++
 arch/sh64/kernel/sh_ksyms.c  |  62 ------------------
 6 files changed, 208 insertions(+), 216 deletions(-)
 delete mode 100644 arch/sh/kernel/sh_ksyms.c
 create mode 100644 arch/sh/kernel/sh_ksyms_32.c
 create mode 100644 arch/sh/kernel/sh_ksyms_64.c
 delete mode 100644 arch/sh64/kernel/sh_ksyms.c

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index c5a85bfbd451..5c7fa594d6d1 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/arch/sh/kernel/Makefile_32
@@ -15,7 +15,7 @@ obj-$(CONFIG_CF_ENABLER)	+= cf-enabler.o
 obj-$(CONFIG_SH_STANDARD_BIOS)	+= sh_bios.o
 obj-$(CONFIG_SH_KGDB)		+= kgdb_stub.o kgdb_jmp.o
 obj-$(CONFIG_SH_CPU_FREQ)	+= cpufreq.o
-obj-$(CONFIG_MODULES)		+= sh_ksyms.o module.o
+obj-$(CONFIG_MODULES)		+= sh_ksyms_32.o module.o
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index 41b3efc25686..585b6a11d3f6 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/arch/sh/kernel/Makefile_64
@@ -11,7 +11,7 @@ obj-$(CONFIG_CF_ENABLER)	+= cf-enabler.o
 obj-$(CONFIG_SH_STANDARD_BIOS)	+= sh_bios.o
 obj-$(CONFIG_SH_KGDB)		+= kgdb_stub.o kgdb_jmp.o
 obj-$(CONFIG_SH_CPU_FREQ)	+= cpufreq.o
-obj-$(CONFIG_MODULES)		+= sh_ksyms.o module.o
+obj-$(CONFIG_MODULES)		+= sh_ksyms_64.o module.o
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c
deleted file mode 100644
index bc5239ef88ce..000000000000
--- a/arch/sh/kernel/sh_ksyms.c
+++ /dev/null
@@ -1,152 +0,0 @@
-#include <linux/module.h>
-#include <linux/smp.h>
-#include <linux/user.h>
-#include <linux/elfcore.h>
-#include <linux/sched.h>
-#include <linux/in6.h>
-#include <linux/interrupt.h>
-#include <linux/vmalloc.h>
-#include <linux/pci.h>
-#include <linux/irq.h>
-#include <asm/sections.h>
-#include <asm/semaphore.h>
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-#include <asm/checksum.h>
-#include <asm/io.h>
-#include <asm/delay.h>
-#include <asm/tlbflush.h>
-#include <asm/cacheflush.h>
-
-extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
-extern struct hw_interrupt_type no_irq_type;
-
-EXPORT_SYMBOL(sh_mv);
-
-/* platform dependent support */
-EXPORT_SYMBOL(dump_fpu);
-EXPORT_SYMBOL(kernel_thread);
-EXPORT_SYMBOL(irq_desc);
-EXPORT_SYMBOL(no_irq_type);
-
-EXPORT_SYMBOL(strlen);
-
-/* PCI exports */
-#ifdef CONFIG_PCI
-EXPORT_SYMBOL(pci_alloc_consistent);
-EXPORT_SYMBOL(pci_free_consistent);
-#endif
-
-/* mem exports */
-EXPORT_SYMBOL(memchr);
-EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(memset);
-EXPORT_SYMBOL(memmove);
-EXPORT_SYMBOL(__copy_user);
-
-#ifdef CONFIG_MMU
-EXPORT_SYMBOL(get_vm_area);
-#endif
-
-/* semaphore exports */
-EXPORT_SYMBOL(__up);
-EXPORT_SYMBOL(__down);
-EXPORT_SYMBOL(__down_interruptible);
-EXPORT_SYMBOL(__down_trylock);
-
-EXPORT_SYMBOL(__udelay);
-EXPORT_SYMBOL(__ndelay);
-EXPORT_SYMBOL(__const_udelay);
-
-#define DECLARE_EXPORT(name) extern void name(void);EXPORT_SYMBOL(name)
-
-/* These symbols are generated by the compiler itself */
-DECLARE_EXPORT(__udivsi3);
-DECLARE_EXPORT(__sdivsi3);
-DECLARE_EXPORT(__ashrsi3);
-DECLARE_EXPORT(__ashlsi3);
-DECLARE_EXPORT(__ashrdi3);
-DECLARE_EXPORT(__ashldi3);
-DECLARE_EXPORT(__ashiftrt_r4_6);
-DECLARE_EXPORT(__ashiftrt_r4_7);
-DECLARE_EXPORT(__ashiftrt_r4_8);
-DECLARE_EXPORT(__ashiftrt_r4_9);
-DECLARE_EXPORT(__ashiftrt_r4_10);
-DECLARE_EXPORT(__ashiftrt_r4_11);
-DECLARE_EXPORT(__ashiftrt_r4_12);
-DECLARE_EXPORT(__ashiftrt_r4_13);
-DECLARE_EXPORT(__ashiftrt_r4_14);
-DECLARE_EXPORT(__ashiftrt_r4_15);
-DECLARE_EXPORT(__ashiftrt_r4_20);
-DECLARE_EXPORT(__ashiftrt_r4_21);
-DECLARE_EXPORT(__ashiftrt_r4_22);
-DECLARE_EXPORT(__ashiftrt_r4_23);
-DECLARE_EXPORT(__ashiftrt_r4_24);
-DECLARE_EXPORT(__ashiftrt_r4_27);
-DECLARE_EXPORT(__ashiftrt_r4_30);
-DECLARE_EXPORT(__lshrsi3);
-DECLARE_EXPORT(__lshrdi3);
-DECLARE_EXPORT(__movstrSI8);
-DECLARE_EXPORT(__movstrSI12);
-DECLARE_EXPORT(__movstrSI16);
-DECLARE_EXPORT(__movstrSI20);
-DECLARE_EXPORT(__movstrSI24);
-DECLARE_EXPORT(__movstrSI28);
-DECLARE_EXPORT(__movstrSI32);
-DECLARE_EXPORT(__movstrSI36);
-DECLARE_EXPORT(__movstrSI40);
-DECLARE_EXPORT(__movstrSI44);
-DECLARE_EXPORT(__movstrSI48);
-DECLARE_EXPORT(__movstrSI52);
-DECLARE_EXPORT(__movstrSI56);
-DECLARE_EXPORT(__movstrSI60);
-#if __GNUC__ == 4
-DECLARE_EXPORT(__movmem);
-#else
-DECLARE_EXPORT(__movstr);
-#endif
-
-#if __GNUC__ == 4
-DECLARE_EXPORT(__movmem_i4_even);
-DECLARE_EXPORT(__movmem_i4_odd);
-DECLARE_EXPORT(__movmemSI12_i4);
-
-#if (__GNUC_MINOR__ == 2 || defined(__GNUC_STM_RELEASE__))
-/*
- * GCC 4.2 emits these for division, as do GCC 4.1.x versions of the ST
- * compiler which include backported patches.
- */
-DECLARE_EXPORT(__sdivsi3_i4i);
-DECLARE_EXPORT(__udiv_qrnnd_16);
-DECLARE_EXPORT(__udivsi3_i4i);
-#endif
-#else /* GCC 3.x */
-DECLARE_EXPORT(__movstr_i4_even);
-DECLARE_EXPORT(__movstr_i4_odd);
-DECLARE_EXPORT(__movstrSI12_i4);
-#endif /* __GNUC__ == 4 */
-
-#if !defined(CONFIG_CACHE_OFF) && (defined(CONFIG_CPU_SH4) || \
-	defined(CONFIG_SH7705_CACHE_32KB))
-/* needed by some modules */
-EXPORT_SYMBOL(flush_cache_all);
-EXPORT_SYMBOL(flush_cache_range);
-EXPORT_SYMBOL(flush_dcache_page);
-EXPORT_SYMBOL(__flush_purge_region);
-#endif
-
-#if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_MMU) && \
-	(defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB))
-EXPORT_SYMBOL(clear_user_page);
-#endif
-
-EXPORT_SYMBOL(csum_partial);
-#ifdef CONFIG_SUPERH32
-EXPORT_SYMBOL(csum_partial_copy_generic);
-#endif
-#ifdef CONFIG_IPV6
-EXPORT_SYMBOL(csum_ipv6_magic);
-#endif
-EXPORT_SYMBOL(clear_page);
-EXPORT_SYMBOL(__clear_user);
-EXPORT_SYMBOL(_ebss);
diff --git a/arch/sh/kernel/sh_ksyms_32.c b/arch/sh/kernel/sh_ksyms_32.c
new file mode 100644
index 000000000000..e1a6de9088b5
--- /dev/null
+++ b/arch/sh/kernel/sh_ksyms_32.c
@@ -0,0 +1,150 @@
+#include <linux/module.h>
+#include <linux/smp.h>
+#include <linux/user.h>
+#include <linux/elfcore.h>
+#include <linux/sched.h>
+#include <linux/in6.h>
+#include <linux/interrupt.h>
+#include <linux/vmalloc.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <asm/sections.h>
+#include <asm/semaphore.h>
+#include <asm/processor.h>
+#include <asm/uaccess.h>
+#include <asm/checksum.h>
+#include <asm/io.h>
+#include <asm/delay.h>
+#include <asm/tlbflush.h>
+#include <asm/cacheflush.h>
+
+extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
+extern struct hw_interrupt_type no_irq_type;
+
+EXPORT_SYMBOL(sh_mv);
+
+/* platform dependent support */
+EXPORT_SYMBOL(dump_fpu);
+EXPORT_SYMBOL(kernel_thread);
+EXPORT_SYMBOL(irq_desc);
+EXPORT_SYMBOL(no_irq_type);
+
+EXPORT_SYMBOL(strlen);
+
+/* PCI exports */
+#ifdef CONFIG_PCI
+EXPORT_SYMBOL(pci_alloc_consistent);
+EXPORT_SYMBOL(pci_free_consistent);
+#endif
+
+/* mem exports */
+EXPORT_SYMBOL(memchr);
+EXPORT_SYMBOL(memcpy);
+EXPORT_SYMBOL(memset);
+EXPORT_SYMBOL(memmove);
+EXPORT_SYMBOL(__copy_user);
+
+#ifdef CONFIG_MMU
+EXPORT_SYMBOL(get_vm_area);
+#endif
+
+/* semaphore exports */
+EXPORT_SYMBOL(__up);
+EXPORT_SYMBOL(__down);
+EXPORT_SYMBOL(__down_interruptible);
+EXPORT_SYMBOL(__down_trylock);
+
+EXPORT_SYMBOL(__udelay);
+EXPORT_SYMBOL(__ndelay);
+EXPORT_SYMBOL(__const_udelay);
+
+#define DECLARE_EXPORT(name) extern void name(void);EXPORT_SYMBOL(name)
+
+/* These symbols are generated by the compiler itself */
+DECLARE_EXPORT(__udivsi3);
+DECLARE_EXPORT(__sdivsi3);
+DECLARE_EXPORT(__ashrsi3);
+DECLARE_EXPORT(__ashlsi3);
+DECLARE_EXPORT(__ashrdi3);
+DECLARE_EXPORT(__ashldi3);
+DECLARE_EXPORT(__ashiftrt_r4_6);
+DECLARE_EXPORT(__ashiftrt_r4_7);
+DECLARE_EXPORT(__ashiftrt_r4_8);
+DECLARE_EXPORT(__ashiftrt_r4_9);
+DECLARE_EXPORT(__ashiftrt_r4_10);
+DECLARE_EXPORT(__ashiftrt_r4_11);
+DECLARE_EXPORT(__ashiftrt_r4_12);
+DECLARE_EXPORT(__ashiftrt_r4_13);
+DECLARE_EXPORT(__ashiftrt_r4_14);
+DECLARE_EXPORT(__ashiftrt_r4_15);
+DECLARE_EXPORT(__ashiftrt_r4_20);
+DECLARE_EXPORT(__ashiftrt_r4_21);
+DECLARE_EXPORT(__ashiftrt_r4_22);
+DECLARE_EXPORT(__ashiftrt_r4_23);
+DECLARE_EXPORT(__ashiftrt_r4_24);
+DECLARE_EXPORT(__ashiftrt_r4_27);
+DECLARE_EXPORT(__ashiftrt_r4_30);
+DECLARE_EXPORT(__lshrsi3);
+DECLARE_EXPORT(__lshrdi3);
+DECLARE_EXPORT(__movstrSI8);
+DECLARE_EXPORT(__movstrSI12);
+DECLARE_EXPORT(__movstrSI16);
+DECLARE_EXPORT(__movstrSI20);
+DECLARE_EXPORT(__movstrSI24);
+DECLARE_EXPORT(__movstrSI28);
+DECLARE_EXPORT(__movstrSI32);
+DECLARE_EXPORT(__movstrSI36);
+DECLARE_EXPORT(__movstrSI40);
+DECLARE_EXPORT(__movstrSI44);
+DECLARE_EXPORT(__movstrSI48);
+DECLARE_EXPORT(__movstrSI52);
+DECLARE_EXPORT(__movstrSI56);
+DECLARE_EXPORT(__movstrSI60);
+#if __GNUC__ == 4
+DECLARE_EXPORT(__movmem);
+#else
+DECLARE_EXPORT(__movstr);
+#endif
+
+#if __GNUC__ == 4
+DECLARE_EXPORT(__movmem_i4_even);
+DECLARE_EXPORT(__movmem_i4_odd);
+DECLARE_EXPORT(__movmemSI12_i4);
+
+#if (__GNUC_MINOR__ == 2 || defined(__GNUC_STM_RELEASE__))
+/*
+ * GCC 4.2 emits these for division, as do GCC 4.1.x versions of the ST
+ * compiler which include backported patches.
+ */
+DECLARE_EXPORT(__sdivsi3_i4i);
+DECLARE_EXPORT(__udiv_qrnnd_16);
+DECLARE_EXPORT(__udivsi3_i4i);
+#endif
+#else /* GCC 3.x */
+DECLARE_EXPORT(__movstr_i4_even);
+DECLARE_EXPORT(__movstr_i4_odd);
+DECLARE_EXPORT(__movstrSI12_i4);
+#endif /* __GNUC__ == 4 */
+
+#if !defined(CONFIG_CACHE_OFF) && (defined(CONFIG_CPU_SH4) || \
+	defined(CONFIG_SH7705_CACHE_32KB))
+/* needed by some modules */
+EXPORT_SYMBOL(flush_cache_all);
+EXPORT_SYMBOL(flush_cache_range);
+EXPORT_SYMBOL(flush_dcache_page);
+EXPORT_SYMBOL(__flush_purge_region);
+#endif
+
+#if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_MMU) && \
+	(defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB))
+EXPORT_SYMBOL(clear_user_page);
+#endif
+
+EXPORT_SYMBOL(csum_partial);
+EXPORT_SYMBOL(csum_partial_copy_generic);
+#ifdef CONFIG_IPV6
+EXPORT_SYMBOL(csum_ipv6_magic);
+#endif
+EXPORT_SYMBOL(clear_page);
+EXPORT_SYMBOL(__clear_user);
+EXPORT_SYMBOL(_ebss);
diff --git a/arch/sh/kernel/sh_ksyms_64.c b/arch/sh/kernel/sh_ksyms_64.c
new file mode 100644
index 000000000000..fbc991c33f5a
--- /dev/null
+++ b/arch/sh/kernel/sh_ksyms_64.c
@@ -0,0 +1,56 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/kernel/sh_ksyms.c
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ */
+#include <linux/rwsem.h>
+#include <linux/module.h>
+#include <linux/smp.h>
+#include <linux/user.h>
+#include <linux/elfcore.h>
+#include <linux/sched.h>
+#include <linux/in6.h>
+#include <linux/interrupt.h>
+#include <linux/screen_info.h>
+#include <asm/semaphore.h>
+#include <asm/processor.h>
+#include <asm/uaccess.h>
+#include <asm/checksum.h>
+#include <asm/io.h>
+#include <asm/delay.h>
+#include <asm/irq.h>
+
+extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
+
+/* platform dependent support */
+EXPORT_SYMBOL(dump_fpu);
+EXPORT_SYMBOL(kernel_thread);
+
+/* Networking helper routines. */
+EXPORT_SYMBOL(csum_partial_copy_nocheck);
+
+#ifdef CONFIG_VT
+EXPORT_SYMBOL(screen_info);
+#endif
+
+EXPORT_SYMBOL(__down);
+EXPORT_SYMBOL(__down_trylock);
+EXPORT_SYMBOL(__up);
+EXPORT_SYMBOL(__put_user_asm_l);
+EXPORT_SYMBOL(__get_user_asm_l);
+EXPORT_SYMBOL(__copy_user);
+EXPORT_SYMBOL(memcpy);
+EXPORT_SYMBOL(__udelay);
+EXPORT_SYMBOL(__ndelay);
+
+/* Ugh.  These come in from libgcc.a at link time. */
+#define DECLARE_EXPORT(name) extern void name(void);EXPORT_SYMBOL(name)
+
+DECLARE_EXPORT(__sdivsi3);
+DECLARE_EXPORT(__muldi3);
+DECLARE_EXPORT(__udivsi3);
diff --git a/arch/sh64/kernel/sh_ksyms.c b/arch/sh64/kernel/sh_ksyms.c
deleted file mode 100644
index b1705acc8e64..000000000000
--- a/arch/sh64/kernel/sh_ksyms.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/sh_ksyms.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- *
- */
-
-#include <linux/rwsem.h>
-#include <linux/module.h>
-#include <linux/smp.h>
-#include <linux/user.h>
-#include <linux/elfcore.h>
-#include <linux/sched.h>
-#include <linux/in6.h>
-#include <linux/interrupt.h>
-#include <linux/screen_info.h>
-
-#include <asm/semaphore.h>
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-#include <asm/checksum.h>
-#include <asm/io.h>
-#include <asm/delay.h>
-#include <asm/irq.h>
-
-extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
-
-/* platform dependent support */
-EXPORT_SYMBOL(dump_fpu);
-EXPORT_SYMBOL(kernel_thread);
-
-/* Networking helper routines. */
-EXPORT_SYMBOL(csum_partial_copy_nocheck);
-
-#ifdef CONFIG_VT
-EXPORT_SYMBOL(screen_info);
-#endif
-
-EXPORT_SYMBOL(__down);
-EXPORT_SYMBOL(__down_trylock);
-EXPORT_SYMBOL(__up);
-EXPORT_SYMBOL(__put_user_asm_l);
-EXPORT_SYMBOL(__get_user_asm_l);
-EXPORT_SYMBOL(__copy_user);
-EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(udelay);
-EXPORT_SYMBOL(__udelay);
-EXPORT_SYMBOL(ndelay);
-EXPORT_SYMBOL(__ndelay);
-EXPORT_SYMBOL(flush_dcache_page);
-EXPORT_SYMBOL(sh64_page_clear);
-
-/* Ugh.  These come in from libgcc.a at link time. */
-#define DECLARE_EXPORT(name) extern void name(void);EXPORT_SYMBOL(name)
-
-DECLARE_EXPORT(__sdivsi3);
-DECLARE_EXPORT(__muldi3);
-DECLARE_EXPORT(__udivsi3);
-- 
cgit v1.2.3-59-g8ed1b


From ad81eb91731fe7e43ce5c91278bc33bded6cbda1 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sun, 11 Nov 2007 18:43:33 +0900
Subject: sh: Split out ioremap in to _32 and _64 variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/Makefile_32  |   2 +-
 arch/sh/mm/Makefile_64  |   5 +
 arch/sh/mm/ioremap.c    | 150 -------------------
 arch/sh/mm/ioremap_32.c | 150 +++++++++++++++++++
 arch/sh/mm/ioremap_64.c | 387 +++++++++++++++++++++++++++++++++++++++++++++++
 arch/sh64/mm/ioremap.c  | 388 ------------------------------------------------
 6 files changed, 543 insertions(+), 539 deletions(-)
 delete mode 100644 arch/sh/mm/ioremap.c
 create mode 100644 arch/sh/mm/ioremap_32.c
 create mode 100644 arch/sh/mm/ioremap_64.c
 delete mode 100644 arch/sh64/mm/ioremap.c

(limited to 'arch')

diff --git a/arch/sh/mm/Makefile_32 b/arch/sh/mm/Makefile_32
index cc68b265c025..b43884269c2a 100644
--- a/arch/sh/mm/Makefile_32
+++ b/arch/sh/mm/Makefile_32
@@ -13,7 +13,7 @@ endif
 
 mmu-y			:= tlb-nommu.o pg-nommu.o
 mmu-$(CONFIG_MMU)	:= fault.o clear_page.o copy_page.o tlb-flush.o	\
-			   ioremap.o
+			   ioremap_32.o
 
 obj-y			+= $(mmu-y)
 
diff --git a/arch/sh/mm/Makefile_64 b/arch/sh/mm/Makefile_64
index de964a1500f4..177f92863e4e 100644
--- a/arch/sh/mm/Makefile_64
+++ b/arch/sh/mm/Makefile_64
@@ -4,6 +4,11 @@
 
 obj-y			:= init.o extable_64.o consistent.o
 
+mmu-y			:= tlb-nommu.o pg-nommu.o
+mmu-$(CONFIG_MMU)	:= ioremap_64.o
+
+obj-y			+= $(mmu-y)
+
 obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o
 obj-$(CONFIG_PMB)		+= pmb.o
 obj-$(CONFIG_NUMA)		+= numa.o
diff --git a/arch/sh/mm/ioremap.c b/arch/sh/mm/ioremap.c
deleted file mode 100644
index 0c7b7e33abdc..000000000000
--- a/arch/sh/mm/ioremap.c
+++ /dev/null
@@ -1,150 +0,0 @@
-/*
- * arch/sh/mm/ioremap.c
- *
- * Re-map IO memory to kernel address space so that we can access it.
- * This is needed for high PCI addresses that aren't mapped in the
- * 640k-1MB IO memory area on PC's
- *
- * (C) Copyright 1995 1996 Linus Torvalds
- * (C) Copyright 2005, 2006 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file "COPYING" in the main directory of this
- * archive for more details.
- */
-#include <linux/vmalloc.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/pci.h>
-#include <linux/io.h>
-#include <asm/page.h>
-#include <asm/pgalloc.h>
-#include <asm/addrspace.h>
-#include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
-#include <asm/mmu.h>
-
-/*
- * Remap an arbitrary physical address space into the kernel virtual
- * address space. Needed when the kernel wants to access high addresses
- * directly.
- *
- * NOTE! We need to allow non-page-aligned mappings too: we will obviously
- * have to convert them into an offset in a page-aligned mapping, but the
- * caller shouldn't need to know that small detail.
- */
-void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
-			unsigned long flags)
-{
-	struct vm_struct * area;
-	unsigned long offset, last_addr, addr, orig_addr;
-	pgprot_t pgprot;
-
-	/* Don't allow wraparound or zero size */
-	last_addr = phys_addr + size - 1;
-	if (!size || last_addr < phys_addr)
-		return NULL;
-
-	/*
-	 * If we're on an SH7751 or SH7780 PCI controller, PCI memory is
-	 * mapped at the end of the address space (typically 0xfd000000)
-	 * in a non-translatable area, so mapping through page tables for
-	 * this area is not only pointless, but also fundamentally
-	 * broken. Just return the physical address instead.
-	 *
-	 * For boards that map a small PCI memory aperture somewhere in
-	 * P1/P2 space, ioremap() will already do the right thing,
-	 * and we'll never get this far.
-	 */
-	if (is_pci_memaddr(phys_addr) && is_pci_memaddr(last_addr))
-		return (void __iomem *)phys_addr;
-
-	/*
-	 * Don't allow anybody to remap normal RAM that we're using..
-	 */
-	if (phys_addr < virt_to_phys(high_memory))
-		return NULL;
-
-	/*
-	 * Mappings have to be page-aligned
-	 */
-	offset = phys_addr & ~PAGE_MASK;
-	phys_addr &= PAGE_MASK;
-	size = PAGE_ALIGN(last_addr+1) - phys_addr;
-
-	/*
-	 * Ok, go for it..
-	 */
-	area = get_vm_area(size, VM_IOREMAP);
-	if (!area)
-		return NULL;
-	area->phys_addr = phys_addr;
-	orig_addr = addr = (unsigned long)area->addr;
-
-#ifdef CONFIG_32BIT
-	/*
-	 * First try to remap through the PMB once a valid VMA has been
-	 * established. Smaller allocations (or the rest of the size
-	 * remaining after a PMB mapping due to the size not being
-	 * perfectly aligned on a PMB size boundary) are then mapped
-	 * through the UTLB using conventional page tables.
-	 *
-	 * PMB entries are all pre-faulted.
-	 */
-	if (unlikely(size >= 0x1000000)) {
-		unsigned long mapped = pmb_remap(addr, phys_addr, size, flags);
-
-		if (likely(mapped)) {
-			addr		+= mapped;
-			phys_addr	+= mapped;
-			size		-= mapped;
-		}
-	}
-#endif
-
-	pgprot = __pgprot(pgprot_val(PAGE_KERNEL_NOCACHE) | flags);
-	if (likely(size))
-		if (ioremap_page_range(addr, addr + size, phys_addr, pgprot)) {
-			vunmap((void *)orig_addr);
-			return NULL;
-		}
-
-	return (void __iomem *)(offset + (char *)orig_addr);
-}
-EXPORT_SYMBOL(__ioremap);
-
-void __iounmap(void __iomem *addr)
-{
-	unsigned long vaddr = (unsigned long __force)addr;
-	struct vm_struct *p;
-
-	if (PXSEG(vaddr) < P3SEG || is_pci_memaddr(vaddr))
-		return;
-
-#ifdef CONFIG_32BIT
-	/*
-	 * Purge any PMB entries that may have been established for this
-	 * mapping, then proceed with conventional VMA teardown.
-	 *
-	 * XXX: Note that due to the way that remove_vm_area() does
-	 * matching of the resultant VMA, we aren't able to fast-forward
-	 * the address past the PMB space until the end of the VMA where
-	 * the page tables reside. As such, unmap_vm_area() will be
-	 * forced to linearly scan over the area until it finds the page
-	 * tables where PTEs that need to be unmapped actually reside,
-	 * which is far from optimal. Perhaps we need to use a separate
-	 * VMA for the PMB mappings?
-	 *					-- PFM.
-	 */
-	pmb_unmap(vaddr);
-#endif
-
-	p = remove_vm_area((void *)(vaddr & PAGE_MASK));
-	if (!p) {
-		printk(KERN_ERR "%s: bad address %p\n", __FUNCTION__, addr);
-		return;
-	}
-
-	kfree(p);
-}
-EXPORT_SYMBOL(__iounmap);
diff --git a/arch/sh/mm/ioremap_32.c b/arch/sh/mm/ioremap_32.c
new file mode 100644
index 000000000000..0c7b7e33abdc
--- /dev/null
+++ b/arch/sh/mm/ioremap_32.c
@@ -0,0 +1,150 @@
+/*
+ * arch/sh/mm/ioremap.c
+ *
+ * Re-map IO memory to kernel address space so that we can access it.
+ * This is needed for high PCI addresses that aren't mapped in the
+ * 640k-1MB IO memory area on PC's
+ *
+ * (C) Copyright 1995 1996 Linus Torvalds
+ * (C) Copyright 2005, 2006 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ */
+#include <linux/vmalloc.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+#include <asm/addrspace.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+#include <asm/mmu.h>
+
+/*
+ * Remap an arbitrary physical address space into the kernel virtual
+ * address space. Needed when the kernel wants to access high addresses
+ * directly.
+ *
+ * NOTE! We need to allow non-page-aligned mappings too: we will obviously
+ * have to convert them into an offset in a page-aligned mapping, but the
+ * caller shouldn't need to know that small detail.
+ */
+void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
+			unsigned long flags)
+{
+	struct vm_struct * area;
+	unsigned long offset, last_addr, addr, orig_addr;
+	pgprot_t pgprot;
+
+	/* Don't allow wraparound or zero size */
+	last_addr = phys_addr + size - 1;
+	if (!size || last_addr < phys_addr)
+		return NULL;
+
+	/*
+	 * If we're on an SH7751 or SH7780 PCI controller, PCI memory is
+	 * mapped at the end of the address space (typically 0xfd000000)
+	 * in a non-translatable area, so mapping through page tables for
+	 * this area is not only pointless, but also fundamentally
+	 * broken. Just return the physical address instead.
+	 *
+	 * For boards that map a small PCI memory aperture somewhere in
+	 * P1/P2 space, ioremap() will already do the right thing,
+	 * and we'll never get this far.
+	 */
+	if (is_pci_memaddr(phys_addr) && is_pci_memaddr(last_addr))
+		return (void __iomem *)phys_addr;
+
+	/*
+	 * Don't allow anybody to remap normal RAM that we're using..
+	 */
+	if (phys_addr < virt_to_phys(high_memory))
+		return NULL;
+
+	/*
+	 * Mappings have to be page-aligned
+	 */
+	offset = phys_addr & ~PAGE_MASK;
+	phys_addr &= PAGE_MASK;
+	size = PAGE_ALIGN(last_addr+1) - phys_addr;
+
+	/*
+	 * Ok, go for it..
+	 */
+	area = get_vm_area(size, VM_IOREMAP);
+	if (!area)
+		return NULL;
+	area->phys_addr = phys_addr;
+	orig_addr = addr = (unsigned long)area->addr;
+
+#ifdef CONFIG_32BIT
+	/*
+	 * First try to remap through the PMB once a valid VMA has been
+	 * established. Smaller allocations (or the rest of the size
+	 * remaining after a PMB mapping due to the size not being
+	 * perfectly aligned on a PMB size boundary) are then mapped
+	 * through the UTLB using conventional page tables.
+	 *
+	 * PMB entries are all pre-faulted.
+	 */
+	if (unlikely(size >= 0x1000000)) {
+		unsigned long mapped = pmb_remap(addr, phys_addr, size, flags);
+
+		if (likely(mapped)) {
+			addr		+= mapped;
+			phys_addr	+= mapped;
+			size		-= mapped;
+		}
+	}
+#endif
+
+	pgprot = __pgprot(pgprot_val(PAGE_KERNEL_NOCACHE) | flags);
+	if (likely(size))
+		if (ioremap_page_range(addr, addr + size, phys_addr, pgprot)) {
+			vunmap((void *)orig_addr);
+			return NULL;
+		}
+
+	return (void __iomem *)(offset + (char *)orig_addr);
+}
+EXPORT_SYMBOL(__ioremap);
+
+void __iounmap(void __iomem *addr)
+{
+	unsigned long vaddr = (unsigned long __force)addr;
+	struct vm_struct *p;
+
+	if (PXSEG(vaddr) < P3SEG || is_pci_memaddr(vaddr))
+		return;
+
+#ifdef CONFIG_32BIT
+	/*
+	 * Purge any PMB entries that may have been established for this
+	 * mapping, then proceed with conventional VMA teardown.
+	 *
+	 * XXX: Note that due to the way that remove_vm_area() does
+	 * matching of the resultant VMA, we aren't able to fast-forward
+	 * the address past the PMB space until the end of the VMA where
+	 * the page tables reside. As such, unmap_vm_area() will be
+	 * forced to linearly scan over the area until it finds the page
+	 * tables where PTEs that need to be unmapped actually reside,
+	 * which is far from optimal. Perhaps we need to use a separate
+	 * VMA for the PMB mappings?
+	 *					-- PFM.
+	 */
+	pmb_unmap(vaddr);
+#endif
+
+	p = remove_vm_area((void *)(vaddr & PAGE_MASK));
+	if (!p) {
+		printk(KERN_ERR "%s: bad address %p\n", __FUNCTION__, addr);
+		return;
+	}
+
+	kfree(p);
+}
+EXPORT_SYMBOL(__iounmap);
diff --git a/arch/sh/mm/ioremap_64.c b/arch/sh/mm/ioremap_64.c
new file mode 100644
index 000000000000..95c85e2e43cf
--- /dev/null
+++ b/arch/sh/mm/ioremap_64.c
@@ -0,0 +1,387 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/mm/ioremap.c
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003, 2004  Paul Mundt
+ *
+ * Mostly derived from arch/sh/mm/ioremap.c which, in turn is mostly
+ * derived from arch/i386/mm/ioremap.c .
+ *
+ *   (C) Copyright 1995 1996 Linus Torvalds
+ */
+#include <linux/vmalloc.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/io.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+#include <asm/addrspace.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+#include <asm/mmu.h>
+
+static void shmedia_mapioaddr(unsigned long, unsigned long);
+static unsigned long shmedia_ioremap(struct resource *, u32, int);
+
+/*
+ * Generic mapping function (not visible outside):
+ */
+
+/*
+ * Remap an arbitrary physical address space into the kernel virtual
+ * address space. Needed when the kernel wants to access high addresses
+ * directly.
+ *
+ * NOTE! We need to allow non-page-aligned mappings too: we will obviously
+ * have to convert them into an offset in a page-aligned mapping, but the
+ * caller shouldn't need to know that small detail.
+ */
+void * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
+{
+	void * addr;
+	struct vm_struct * area;
+	unsigned long offset, last_addr;
+	pgprot_t pgprot;
+
+	/* Don't allow wraparound or zero size */
+	last_addr = phys_addr + size - 1;
+	if (!size || last_addr < phys_addr)
+		return NULL;
+
+	pgprot = __pgprot(_PAGE_PRESENT  | _PAGE_READ   |
+			  _PAGE_WRITE    | _PAGE_DIRTY  |
+			  _PAGE_ACCESSED | _PAGE_SHARED | flags);
+
+	/*
+	 * Mappings have to be page-aligned
+	 */
+	offset = phys_addr & ~PAGE_MASK;
+	phys_addr &= PAGE_MASK;
+	size = PAGE_ALIGN(last_addr + 1) - phys_addr;
+
+	/*
+	 * Ok, go for it..
+	 */
+	area = get_vm_area(size, VM_IOREMAP);
+	pr_debug("Get vm_area returns %p addr %p\n",area,area->addr);
+	if (!area)
+		return NULL;
+	area->phys_addr = phys_addr;
+	addr = area->addr;
+	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
+			       phys_addr, pgprot)) {
+		vunmap(addr);
+		return NULL;
+	}
+	return (void *) (offset + (char *)addr);
+}
+EXPORT_SYMBOL(__ioremap);
+
+void iounmap(void *addr)
+{
+	struct vm_struct *area;
+
+	vfree((void *) (PAGE_MASK & (unsigned long) addr));
+	area = remove_vm_area((void *) (PAGE_MASK & (unsigned long) addr));
+	if (!area) {
+		printk(KERN_ERR "iounmap: bad address %p\n", addr);
+		return;
+	}
+
+	kfree(area);
+}
+EXPORT_SYMBOL(iounmap);
+
+static struct resource shmedia_iomap = {
+	.name	= "shmedia_iomap",
+	.start	= IOBASE_VADDR + PAGE_SIZE,
+	.end	= IOBASE_END - 1,
+};
+
+static void shmedia_mapioaddr(unsigned long pa, unsigned long va);
+static void shmedia_unmapioaddr(unsigned long vaddr);
+static unsigned long shmedia_ioremap(struct resource *res, u32 pa, int sz);
+
+/*
+ * We have the same problem as the SPARC, so lets have the same comment:
+ * Our mini-allocator...
+ * Boy this is gross! We need it because we must map I/O for
+ * timers and interrupt controller before the kmalloc is available.
+ */
+
+#define XNMLN  15
+#define XNRES  10
+
+struct xresource {
+	struct resource xres;   /* Must be first */
+	int xflag;              /* 1 == used */
+	char xname[XNMLN+1];
+};
+
+static struct xresource xresv[XNRES];
+
+static struct xresource *xres_alloc(void)
+{
+        struct xresource *xrp;
+        int n;
+
+        xrp = xresv;
+        for (n = 0; n < XNRES; n++) {
+                if (xrp->xflag == 0) {
+                        xrp->xflag = 1;
+                        return xrp;
+                }
+                xrp++;
+        }
+        return NULL;
+}
+
+static void xres_free(struct xresource *xrp)
+{
+	xrp->xflag = 0;
+}
+
+static struct resource *shmedia_find_resource(struct resource *root,
+					      unsigned long vaddr)
+{
+	struct resource *res;
+
+	for (res = root->child; res; res = res->sibling)
+		if (res->start <= vaddr && res->end >= vaddr)
+			return res;
+
+	return NULL;
+}
+
+static unsigned long shmedia_alloc_io(unsigned long phys, unsigned long size,
+				      const char *name)
+{
+        static int printed_full = 0;
+        struct xresource *xres;
+        struct resource *res;
+        char *tack;
+        int tlen;
+
+        if (name == NULL) name = "???";
+
+        if ((xres = xres_alloc()) != 0) {
+                tack = xres->xname;
+                res = &xres->xres;
+        } else {
+                if (!printed_full) {
+                        printk("%s: done with statics, switching to kmalloc\n",
+			       __FUNCTION__);
+                        printed_full = 1;
+                }
+                tlen = strlen(name);
+                tack = kmalloc(sizeof (struct resource) + tlen + 1, GFP_KERNEL);
+                if (!tack)
+			return -ENOMEM;
+                memset(tack, 0, sizeof(struct resource));
+                res = (struct resource *) tack;
+                tack += sizeof (struct resource);
+        }
+
+        strncpy(tack, name, XNMLN);
+        tack[XNMLN] = 0;
+        res->name = tack;
+
+        return shmedia_ioremap(res, phys, size);
+}
+
+static unsigned long shmedia_ioremap(struct resource *res, u32 pa, int sz)
+{
+        unsigned long offset = ((unsigned long) pa) & (~PAGE_MASK);
+	unsigned long round_sz = (offset + sz + PAGE_SIZE-1) & PAGE_MASK;
+        unsigned long va;
+        unsigned int psz;
+
+        if (allocate_resource(&shmedia_iomap, res, round_sz,
+			      shmedia_iomap.start, shmedia_iomap.end,
+			      PAGE_SIZE, NULL, NULL) != 0) {
+                panic("alloc_io_res(%s): cannot occupy\n",
+                    (res->name != NULL)? res->name: "???");
+        }
+
+        va = res->start;
+        pa &= PAGE_MASK;
+
+	psz = (res->end - res->start + (PAGE_SIZE - 1)) / PAGE_SIZE;
+
+	/* log at boot time ... */
+	printk("mapioaddr: %6s  [%2d page%s]  va 0x%08lx   pa 0x%08x\n",
+	       ((res->name != NULL) ? res->name : "???"),
+	       psz, psz == 1 ? " " : "s", va, pa);
+
+        for (psz = res->end - res->start + 1; psz != 0; psz -= PAGE_SIZE) {
+                shmedia_mapioaddr(pa, va);
+                va += PAGE_SIZE;
+                pa += PAGE_SIZE;
+        }
+
+        res->start += offset;
+        res->end = res->start + sz - 1;         /* not strictly necessary.. */
+
+        return res->start;
+}
+
+static void shmedia_free_io(struct resource *res)
+{
+	unsigned long len = res->end - res->start + 1;
+
+	BUG_ON((len & (PAGE_SIZE - 1)) != 0);
+
+	while (len) {
+		len -= PAGE_SIZE;
+		shmedia_unmapioaddr(res->start + len);
+	}
+
+	release_resource(res);
+}
+
+static __init_refok void *sh64_get_page(void)
+{
+	extern int after_bootmem;
+	void *page;
+
+	if (after_bootmem) {
+		page = (void *)get_zeroed_page(GFP_ATOMIC);
+	} else {
+		page = alloc_bootmem_pages(PAGE_SIZE);
+	}
+
+	if (!page || ((unsigned long)page & ~PAGE_MASK))
+		panic("sh64_get_page: Out of memory already?\n");
+
+	return page;
+}
+
+static void shmedia_mapioaddr(unsigned long pa, unsigned long va)
+{
+	pgd_t *pgdp;
+	pmd_t *pmdp;
+	pte_t *ptep, pte;
+	pgprot_t prot;
+	unsigned long flags = 1; /* 1 = CB0-1 device */
+
+	pr_debug("shmedia_mapiopage pa %08lx va %08lx\n",  pa, va);
+
+	pgdp = pgd_offset_k(va);
+	if (pgd_none(*pgdp) || !pgd_present(*pgdp)) {
+		pmdp = (pmd_t *)sh64_get_page();
+		set_pgd(pgdp, __pgd((unsigned long)pmdp | _KERNPG_TABLE));
+	}
+
+	pmdp = pmd_offset(pgdp, va);
+	if (pmd_none(*pmdp) || !pmd_present(*pmdp) ) {
+		ptep = (pte_t *)sh64_get_page();
+		set_pmd(pmdp, __pmd((unsigned long)ptep + _PAGE_TABLE));
+	}
+
+	prot = __pgprot(_PAGE_PRESENT | _PAGE_READ     | _PAGE_WRITE  |
+			_PAGE_DIRTY   | _PAGE_ACCESSED | _PAGE_SHARED | flags);
+
+	pte = pfn_pte(pa >> PAGE_SHIFT, prot);
+	ptep = pte_offset_kernel(pmdp, va);
+
+	if (!pte_none(*ptep) &&
+	    pte_val(*ptep) != pte_val(pte))
+		pte_ERROR(*ptep);
+
+	set_pte(ptep, pte);
+
+	flush_tlb_kernel_range(va, PAGE_SIZE);
+}
+
+static void shmedia_unmapioaddr(unsigned long vaddr)
+{
+	pgd_t *pgdp;
+	pmd_t *pmdp;
+	pte_t *ptep;
+
+	pgdp = pgd_offset_k(vaddr);
+	pmdp = pmd_offset(pgdp, vaddr);
+
+	if (pmd_none(*pmdp) || pmd_bad(*pmdp))
+		return;
+
+	ptep = pte_offset_kernel(pmdp, vaddr);
+
+	if (pte_none(*ptep) || !pte_present(*ptep))
+		return;
+
+	clear_page((void *)ptep);
+	pte_clear(&init_mm, vaddr, ptep);
+}
+
+unsigned long onchip_remap(unsigned long phys, unsigned long size, const char *name)
+{
+	if (size < PAGE_SIZE)
+		size = PAGE_SIZE;
+
+	return shmedia_alloc_io(phys, size, name);
+}
+
+void onchip_unmap(unsigned long vaddr)
+{
+	struct resource *res;
+	unsigned int psz;
+
+	res = shmedia_find_resource(&shmedia_iomap, vaddr);
+	if (!res) {
+		printk(KERN_ERR "%s: Failed to free 0x%08lx\n",
+		       __FUNCTION__, vaddr);
+		return;
+	}
+
+        psz = (res->end - res->start + (PAGE_SIZE - 1)) / PAGE_SIZE;
+
+        printk(KERN_DEBUG "unmapioaddr: %6s  [%2d page%s] freed\n",
+	       res->name, psz, psz == 1 ? " " : "s");
+
+	shmedia_free_io(res);
+
+	if ((char *)res >= (char *)xresv &&
+	    (char *)res <  (char *)&xresv[XNRES]) {
+		xres_free((struct xresource *)res);
+	} else {
+		kfree(res);
+	}
+}
+
+#ifdef CONFIG_PROC_FS
+static int
+ioremap_proc_info(char *buf, char **start, off_t fpos, int length, int *eof,
+		  void *data)
+{
+	char *p = buf, *e = buf + length;
+	struct resource *r;
+	const char *nm;
+
+	for (r = ((struct resource *)data)->child; r != NULL; r = r->sibling) {
+		if (p + 32 >= e)        /* Better than nothing */
+			break;
+		if ((nm = r->name) == 0) nm = "???";
+		p += sprintf(p, "%08lx-%08lx: %s\n",
+			     (unsigned long)r->start,
+			     (unsigned long)r->end, nm);
+	}
+
+	return p-buf;
+}
+#endif /* CONFIG_PROC_FS */
+
+static int __init register_proc_onchip(void)
+{
+#ifdef CONFIG_PROC_FS
+	create_proc_read_entry("io_map",0,0, ioremap_proc_info, &shmedia_iomap);
+#endif
+	return 0;
+}
+
+__initcall(register_proc_onchip);
diff --git a/arch/sh64/mm/ioremap.c b/arch/sh64/mm/ioremap.c
deleted file mode 100644
index 535304e6601f..000000000000
--- a/arch/sh64/mm/ioremap.c
+++ /dev/null
@@ -1,388 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/ioremap.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003, 2004  Paul Mundt
- *
- * Mostly derived from arch/sh/mm/ioremap.c which, in turn is mostly
- * derived from arch/i386/mm/ioremap.c .
- *
- *   (C) Copyright 1995 1996 Linus Torvalds
- */
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <linux/bootmem.h>
-#include <linux/proc_fs.h>
-#include <linux/module.h>
-#include <asm/pgalloc.h>
-#include <asm/tlbflush.h>
-
-static void shmedia_mapioaddr(unsigned long, unsigned long);
-static unsigned long shmedia_ioremap(struct resource *, u32, int);
-
-/*
- * Generic mapping function (not visible outside):
- */
-
-/*
- * Remap an arbitrary physical address space into the kernel virtual
- * address space. Needed when the kernel wants to access high addresses
- * directly.
- *
- * NOTE! We need to allow non-page-aligned mappings too: we will obviously
- * have to convert them into an offset in a page-aligned mapping, but the
- * caller shouldn't need to know that small detail.
- */
-void * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
-{
-	void * addr;
-	struct vm_struct * area;
-	unsigned long offset, last_addr;
-	pgprot_t pgprot;
-
-	/* Don't allow wraparound or zero size */
-	last_addr = phys_addr + size - 1;
-	if (!size || last_addr < phys_addr)
-		return NULL;
-
-	pgprot = __pgprot(_PAGE_PRESENT  | _PAGE_READ   |
-			  _PAGE_WRITE    | _PAGE_DIRTY  |
-			  _PAGE_ACCESSED | _PAGE_SHARED | flags);
-
-	/*
-	 * Mappings have to be page-aligned
-	 */
-	offset = phys_addr & ~PAGE_MASK;
-	phys_addr &= PAGE_MASK;
-	size = PAGE_ALIGN(last_addr + 1) - phys_addr;
-
-	/*
-	 * Ok, go for it..
-	 */
-	area = get_vm_area(size, VM_IOREMAP);
-	pr_debug("Get vm_area returns %p addr %p\n",area,area->addr);
-	if (!area)
-		return NULL;
-	area->phys_addr = phys_addr;
-	addr = area->addr;
-	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
-			       phys_addr, pgprot)) {
-		vunmap(addr);
-		return NULL;
-	}
-	return (void *) (offset + (char *)addr);
-}
-EXPORT_SYMBOL(__ioremap);
-
-void iounmap(void *addr)
-{
-	struct vm_struct *area;
-
-	vfree((void *) (PAGE_MASK & (unsigned long) addr));
-	area = remove_vm_area((void *) (PAGE_MASK & (unsigned long) addr));
-	if (!area) {
-		printk(KERN_ERR "iounmap: bad address %p\n", addr);
-		return;
-	}
-
-	kfree(area);
-}
-EXPORT_SYMBOL(iounmap);
-
-static struct resource shmedia_iomap = {
-	.name	= "shmedia_iomap",
-	.start	= IOBASE_VADDR + PAGE_SIZE,
-	.end	= IOBASE_END - 1,
-};
-
-static void shmedia_mapioaddr(unsigned long pa, unsigned long va);
-static void shmedia_unmapioaddr(unsigned long vaddr);
-static unsigned long shmedia_ioremap(struct resource *res, u32 pa, int sz);
-
-/*
- * We have the same problem as the SPARC, so lets have the same comment:
- * Our mini-allocator...
- * Boy this is gross! We need it because we must map I/O for
- * timers and interrupt controller before the kmalloc is available.
- */
-
-#define XNMLN  15
-#define XNRES  10
-
-struct xresource {
-	struct resource xres;   /* Must be first */
-	int xflag;              /* 1 == used */
-	char xname[XNMLN+1];
-};
-
-static struct xresource xresv[XNRES];
-
-static struct xresource *xres_alloc(void)
-{
-        struct xresource *xrp;
-        int n;
-
-        xrp = xresv;
-        for (n = 0; n < XNRES; n++) {
-                if (xrp->xflag == 0) {
-                        xrp->xflag = 1;
-                        return xrp;
-                }
-                xrp++;
-        }
-        return NULL;
-}
-
-static void xres_free(struct xresource *xrp)
-{
-	xrp->xflag = 0;
-}
-
-static struct resource *shmedia_find_resource(struct resource *root,
-					      unsigned long vaddr)
-{
-	struct resource *res;
-
-	for (res = root->child; res; res = res->sibling)
-		if (res->start <= vaddr && res->end >= vaddr)
-			return res;
-
-	return NULL;
-}
-
-static unsigned long shmedia_alloc_io(unsigned long phys, unsigned long size,
-				      const char *name)
-{
-        static int printed_full = 0;
-        struct xresource *xres;
-        struct resource *res;
-        char *tack;
-        int tlen;
-
-        if (name == NULL) name = "???";
-
-        if ((xres = xres_alloc()) != 0) {
-                tack = xres->xname;
-                res = &xres->xres;
-        } else {
-                if (!printed_full) {
-                        printk("%s: done with statics, switching to kmalloc\n",
-			       __FUNCTION__);
-                        printed_full = 1;
-                }
-                tlen = strlen(name);
-                tack = kmalloc(sizeof (struct resource) + tlen + 1, GFP_KERNEL);
-                if (!tack)
-			return -ENOMEM;
-                memset(tack, 0, sizeof(struct resource));
-                res = (struct resource *) tack;
-                tack += sizeof (struct resource);
-        }
-
-        strncpy(tack, name, XNMLN);
-        tack[XNMLN] = 0;
-        res->name = tack;
-
-        return shmedia_ioremap(res, phys, size);
-}
-
-static unsigned long shmedia_ioremap(struct resource *res, u32 pa, int sz)
-{
-        unsigned long offset = ((unsigned long) pa) & (~PAGE_MASK);
-	unsigned long round_sz = (offset + sz + PAGE_SIZE-1) & PAGE_MASK;
-        unsigned long va;
-        unsigned int psz;
-
-        if (allocate_resource(&shmedia_iomap, res, round_sz,
-			      shmedia_iomap.start, shmedia_iomap.end,
-			      PAGE_SIZE, NULL, NULL) != 0) {
-                panic("alloc_io_res(%s): cannot occupy\n",
-                    (res->name != NULL)? res->name: "???");
-        }
-
-        va = res->start;
-        pa &= PAGE_MASK;
-
-	psz = (res->end - res->start + (PAGE_SIZE - 1)) / PAGE_SIZE;
-
-	/* log at boot time ... */
-	printk("mapioaddr: %6s  [%2d page%s]  va 0x%08lx   pa 0x%08x\n",
-	       ((res->name != NULL) ? res->name : "???"),
-	       psz, psz == 1 ? " " : "s", va, pa);
-
-        for (psz = res->end - res->start + 1; psz != 0; psz -= PAGE_SIZE) {
-                shmedia_mapioaddr(pa, va);
-                va += PAGE_SIZE;
-                pa += PAGE_SIZE;
-        }
-
-        res->start += offset;
-        res->end = res->start + sz - 1;         /* not strictly necessary.. */
-
-        return res->start;
-}
-
-static void shmedia_free_io(struct resource *res)
-{
-	unsigned long len = res->end - res->start + 1;
-
-	BUG_ON((len & (PAGE_SIZE - 1)) != 0);
-
-	while (len) {
-		len -= PAGE_SIZE;
-		shmedia_unmapioaddr(res->start + len);
-	}
-
-	release_resource(res);
-}
-
-static __init_refok void *sh64_get_page(void)
-{
-	extern int after_bootmem;
-	void *page;
-
-	if (after_bootmem) {
-		page = (void *)get_zeroed_page(GFP_ATOMIC);
-	} else {
-		page = alloc_bootmem_pages(PAGE_SIZE);
-	}
-
-	if (!page || ((unsigned long)page & ~PAGE_MASK))
-		panic("sh64_get_page: Out of memory already?\n");
-
-	return page;
-}
-
-static void shmedia_mapioaddr(unsigned long pa, unsigned long va)
-{
-	pgd_t *pgdp;
-	pmd_t *pmdp;
-	pte_t *ptep, pte;
-	pgprot_t prot;
-	unsigned long flags = 1; /* 1 = CB0-1 device */
-
-	pr_debug("shmedia_mapiopage pa %08lx va %08lx\n",  pa, va);
-
-	pgdp = pgd_offset_k(va);
-	if (pgd_none(*pgdp) || !pgd_present(*pgdp)) {
-		pmdp = (pmd_t *)sh64_get_page();
-		set_pgd(pgdp, __pgd((unsigned long)pmdp | _KERNPG_TABLE));
-	}
-
-	pmdp = pmd_offset(pgdp, va);
-	if (pmd_none(*pmdp) || !pmd_present(*pmdp) ) {
-		ptep = (pte_t *)sh64_get_page();
-		set_pmd(pmdp, __pmd((unsigned long)ptep + _PAGE_TABLE));
-	}
-
-	prot = __pgprot(_PAGE_PRESENT | _PAGE_READ     | _PAGE_WRITE  |
-			_PAGE_DIRTY   | _PAGE_ACCESSED | _PAGE_SHARED | flags);
-
-	pte = pfn_pte(pa >> PAGE_SHIFT, prot);
-	ptep = pte_offset_kernel(pmdp, va);
-
-	if (!pte_none(*ptep) &&
-	    pte_val(*ptep) != pte_val(pte))
-		pte_ERROR(*ptep);
-
-	set_pte(ptep, pte);
-
-	flush_tlb_kernel_range(va, PAGE_SIZE);
-}
-
-static void shmedia_unmapioaddr(unsigned long vaddr)
-{
-	pgd_t *pgdp;
-	pmd_t *pmdp;
-	pte_t *ptep;
-
-	pgdp = pgd_offset_k(vaddr);
-	pmdp = pmd_offset(pgdp, vaddr);
-
-	if (pmd_none(*pmdp) || pmd_bad(*pmdp))
-		return;
-
-	ptep = pte_offset_kernel(pmdp, vaddr);
-
-	if (pte_none(*ptep) || !pte_present(*ptep))
-		return;
-
-	clear_page((void *)ptep);
-	pte_clear(&init_mm, vaddr, ptep);
-}
-
-unsigned long onchip_remap(unsigned long phys, unsigned long size, const char *name)
-{
-	if (size < PAGE_SIZE)
-		size = PAGE_SIZE;
-
-	return shmedia_alloc_io(phys, size, name);
-}
-
-void onchip_unmap(unsigned long vaddr)
-{
-	struct resource *res;
-	unsigned int psz;
-
-	res = shmedia_find_resource(&shmedia_iomap, vaddr);
-	if (!res) {
-		printk(KERN_ERR "%s: Failed to free 0x%08lx\n",
-		       __FUNCTION__, vaddr);
-		return;
-	}
-
-        psz = (res->end - res->start + (PAGE_SIZE - 1)) / PAGE_SIZE;
-
-        printk(KERN_DEBUG "unmapioaddr: %6s  [%2d page%s] freed\n",
-	       res->name, psz, psz == 1 ? " " : "s");
-
-	shmedia_free_io(res);
-
-	if ((char *)res >= (char *)xresv &&
-	    (char *)res <  (char *)&xresv[XNRES]) {
-		xres_free((struct xresource *)res);
-	} else {
-		kfree(res);
-	}
-}
-
-#ifdef CONFIG_PROC_FS
-static int
-ioremap_proc_info(char *buf, char **start, off_t fpos, int length, int *eof,
-		  void *data)
-{
-	char *p = buf, *e = buf + length;
-	struct resource *r;
-	const char *nm;
-
-	for (r = ((struct resource *)data)->child; r != NULL; r = r->sibling) {
-		if (p + 32 >= e)        /* Better than nothing */
-			break;
-		if ((nm = r->name) == 0) nm = "???";
-		p += sprintf(p, "%08lx-%08lx: %s\n",
-			     (unsigned long)r->start,
-			     (unsigned long)r->end, nm);
-	}
-
-	return p-buf;
-}
-#endif /* CONFIG_PROC_FS */
-
-static int __init register_proc_onchip(void)
-{
-#ifdef CONFIG_PROC_FS
-	create_proc_read_entry("io_map",0,0, ioremap_proc_info, &shmedia_iomap);
-#endif
-	return 0;
-}
-
-__initcall(register_proc_onchip);
-- 
cgit v1.2.3-59-g8ed1b


From 2b6a8d455b1368d769da234336314b8364feb781 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 19 Nov 2007 14:26:09 +0900
Subject: sh: ioremap_64 needs proc_fs.h.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/ioremap_64.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/sh/mm/ioremap_64.c b/arch/sh/mm/ioremap_64.c
index 95c85e2e43cf..95462a0f3120 100644
--- a/arch/sh/mm/ioremap_64.c
+++ b/arch/sh/mm/ioremap_64.c
@@ -18,6 +18,7 @@
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/io.h>
+#include <linux/proc_fs.h>
 #include <asm/page.h>
 #include <asm/pgalloc.h>
 #include <asm/addrspace.h>
-- 
cgit v1.2.3-59-g8ed1b


From 249cfea914002baac0af4b080306e6b820cd86b2 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 19 Nov 2007 18:26:19 +0900
Subject: sh: Split out pgtable.h in to _32 and _64 variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/ioremap_64.c     |  40 ++--
 include/asm-sh/page.h       |  10 +-
 include/asm-sh/pgtable.h    | 491 +------------------------------------------
 include/asm-sh/pgtable_32.h | 473 ++++++++++++++++++++++++++++++++++++++++++
 include/asm-sh/pgtable_64.h | 300 +++++++++++++++++++++++++++
 include/asm-sh64/pgtable.h  | 496 --------------------------------------------
 6 files changed, 820 insertions(+), 990 deletions(-)
 create mode 100644 include/asm-sh/pgtable_32.h
 create mode 100644 include/asm-sh/pgtable_64.h
 delete mode 100644 include/asm-sh64/pgtable.h

(limited to 'arch')

diff --git a/arch/sh/mm/ioremap_64.c b/arch/sh/mm/ioremap_64.c
index 95462a0f3120..e27d16519235 100644
--- a/arch/sh/mm/ioremap_64.c
+++ b/arch/sh/mm/ioremap_64.c
@@ -1,23 +1,24 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/ioremap.c
+ * arch/sh/mm/ioremap_64.c
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003, 2004  Paul Mundt
+ * Copyright (C) 2003 - 2007  Paul Mundt
  *
  * Mostly derived from arch/sh/mm/ioremap.c which, in turn is mostly
  * derived from arch/i386/mm/ioremap.c .
  *
  *   (C) Copyright 1995 1996 Linus Torvalds
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 #include <linux/vmalloc.h>
 #include <linux/ioport.h>
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/io.h>
+#include <linux/bootmem.h>
 #include <linux/proc_fs.h>
 #include <asm/page.h>
 #include <asm/pgalloc.h>
@@ -42,7 +43,8 @@ static unsigned long shmedia_ioremap(struct resource *, u32, int);
  * have to convert them into an offset in a page-aligned mapping, but the
  * caller shouldn't need to know that small detail.
  */
-void * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
+void *__ioremap(unsigned long phys_addr, unsigned long size,
+		unsigned long flags)
 {
 	void * addr;
 	struct vm_struct * area;
@@ -83,7 +85,7 @@ void * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flag
 }
 EXPORT_SYMBOL(__ioremap);
 
-void iounmap(void *addr)
+void __iounmap(void *addr)
 {
 	struct vm_struct *area;
 
@@ -96,7 +98,7 @@ void iounmap(void *addr)
 
 	kfree(area);
 }
-EXPORT_SYMBOL(iounmap);
+EXPORT_SYMBOL(__iounmap);
 
 static struct resource shmedia_iomap = {
 	.name	= "shmedia_iomap",
@@ -265,6 +267,7 @@ static __init_refok void *sh64_get_page(void)
 static void shmedia_mapioaddr(unsigned long pa, unsigned long va)
 {
 	pgd_t *pgdp;
+	pud_t *pudp;
 	pmd_t *pmdp;
 	pte_t *ptep, pte;
 	pgprot_t prot;
@@ -274,11 +277,17 @@ static void shmedia_mapioaddr(unsigned long pa, unsigned long va)
 
 	pgdp = pgd_offset_k(va);
 	if (pgd_none(*pgdp) || !pgd_present(*pgdp)) {
+		pudp = (pud_t *)sh64_get_page();
+		set_pgd(pgdp, __pgd((unsigned long)pudp | _KERNPG_TABLE));
+	}
+
+	pudp = pud_offset(pgdp, va);
+	if (pud_none(*pudp) || !pud_present(*pudp)) {
 		pmdp = (pmd_t *)sh64_get_page();
-		set_pgd(pgdp, __pgd((unsigned long)pmdp | _KERNPG_TABLE));
+		set_pud(pudp, __pud((unsigned long)pmdp | _KERNPG_TABLE));
 	}
 
-	pmdp = pmd_offset(pgdp, va);
+	pmdp = pmd_offset(pudp, va);
 	if (pmd_none(*pmdp) || !pmd_present(*pmdp) ) {
 		ptep = (pte_t *)sh64_get_page();
 		set_pmd(pmdp, __pmd((unsigned long)ptep + _PAGE_TABLE));
@@ -302,12 +311,19 @@ static void shmedia_mapioaddr(unsigned long pa, unsigned long va)
 static void shmedia_unmapioaddr(unsigned long vaddr)
 {
 	pgd_t *pgdp;
+	pud_t *pudp;
 	pmd_t *pmdp;
 	pte_t *ptep;
 
 	pgdp = pgd_offset_k(vaddr);
-	pmdp = pmd_offset(pgdp, vaddr);
+	if (pgd_none(*pgdp) || pgd_bad(*pgdp))
+		return;
+
+	pudp = pud_offset(pgdp, vaddr);
+	if (pud_none(*pudp) || pud_bad(*pudp))
+		return;
 
+	pmdp = pmd_offset(pudp, vaddr);
 	if (pmd_none(*pmdp) || pmd_bad(*pmdp))
 		return;
 
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h
index d0273dbce6be..93a89841227f 100644
--- a/include/asm-sh/page.h
+++ b/include/asm-sh/page.h
@@ -96,12 +96,18 @@ typedef struct { unsigned long long pgd; } pgd_t;
 	((x).pte_low | ((unsigned long long)(x).pte_high << 32))
 #define __pte(x) \
 	({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; })
-#else
+#elif defined(CONFIG_SUPERH32)
 typedef struct { unsigned long pte_low; } pte_t;
 typedef struct { unsigned long pgprot; } pgprot_t;
 typedef struct { unsigned long pgd; } pgd_t;
 #define pte_val(x)	((x).pte_low)
-#define __pte(x) ((pte_t) { (x) } )
+#define __pte(x)	((pte_t) { (x) } )
+#else
+typedef struct { unsigned long long pte_low; } pte_t;
+typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct { unsigned long pgd; } pgd_t;
+#define pte_val(x)	((x).pte_low)
+#define __pte(x)	((pte_t) { (x) } )
 #endif
 
 #define pgd_val(x)	((x).pgd)
diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h
index b0bb76a6864f..5a800c69e049 100644
--- a/include/asm-sh/pgtable.h
+++ b/include/asm-sh/pgtable.h
@@ -3,7 +3,7 @@
  * use the SuperH page table tree.
  *
  * Copyright (C) 1999 Niibe Yutaka
- * Copyright (C) 2002 - 2005 Paul Mundt
+ * Copyright (C) 2002 - 2007 Paul Mundt
  *
  * This file is subject to the terms and conditions of the GNU General
  * Public License.  See the file "COPYING" in the main directory of this
@@ -78,278 +78,12 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 #endif
 #define VMALLOC_END	(FIXADDR_START-2*PAGE_SIZE)
 
-/*
- * Linux PTEL encoding.
- *
- * Hardware and software bit definitions for the PTEL value (see below for
- * notes on SH-X2 MMUs and 64-bit PTEs):
- *
- * - Bits 0 and 7 are reserved on SH-3 (_PAGE_WT and _PAGE_SZ1 on SH-4).
- *
- * - Bit 1 is the SH-bit, but is unused on SH-3 due to an MMU bug (the
- *   hardware PTEL value can't have the SH-bit set when MMUCR.IX is set,
- *   which is the default in cpu-sh3/mmu_context.h:MMU_CONTROL_INIT).
- *
- *   In order to keep this relatively clean, do not use these for defining
- *   SH-3 specific flags until all of the other unused bits have been
- *   exhausted.
- *
- * - Bit 9 is reserved by everyone and used by _PAGE_PROTNONE.
- *
- * - Bits 10 and 11 are low bits of the PPN that are reserved on >= 4K pages.
- *   Bit 10 is used for _PAGE_ACCESSED, bit 11 remains unused.
- *
- * - Bits 31, 30, and 29 remain unused by everyone and can be used for future
- *   software flags, although care must be taken to update _PAGE_CLEAR_FLAGS.
- *
- * XXX: Leave the _PAGE_FILE and _PAGE_WT overhaul for a rainy day.
- *
- * SH-X2 MMUs and extended PTEs
- *
- * SH-X2 supports an extended mode TLB with split data arrays due to the
- * number of bits needed for PR and SZ (now EPR and ESZ) encodings. The PR and
- * SZ bit placeholders still exist in data array 1, but are implemented as
- * reserved bits, with the real logic existing in data array 2.
- *
- * The downside to this is that we can no longer fit everything in to a 32-bit
- * PTE encoding, so a 64-bit pte_t is necessary for these parts. On the plus
- * side, this gives us quite a few spare bits to play with for future usage.
- */
-/* Legacy and compat mode bits */
-#define	_PAGE_WT	0x001		/* WT-bit on SH-4, 0 on SH-3 */
-#define _PAGE_HW_SHARED	0x002		/* SH-bit  : shared among processes */
-#define _PAGE_DIRTY	0x004		/* D-bit   : page changed */
-#define _PAGE_CACHABLE	0x008		/* C-bit   : cachable */
-#define _PAGE_SZ0	0x010		/* SZ0-bit : Size of page */
-#define _PAGE_RW	0x020		/* PR0-bit : write access allowed */
-#define _PAGE_USER	0x040		/* PR1-bit : user space access allowed*/
-#define _PAGE_SZ1	0x080		/* SZ1-bit : Size of page (on SH-4) */
-#define _PAGE_PRESENT	0x100		/* V-bit   : page is valid */
-#define _PAGE_PROTNONE	0x200		/* software: if not present  */
-#define _PAGE_ACCESSED	0x400		/* software: page referenced */
-#define _PAGE_FILE	_PAGE_WT	/* software: pagecache or swap? */
-
-#define _PAGE_SZ_MASK	(_PAGE_SZ0 | _PAGE_SZ1)
-#define _PAGE_PR_MASK	(_PAGE_RW | _PAGE_USER)
-
-/* Extended mode bits */
-#define _PAGE_EXT_ESZ0		0x0010	/* ESZ0-bit: Size of page */
-#define _PAGE_EXT_ESZ1		0x0020	/* ESZ1-bit: Size of page */
-#define _PAGE_EXT_ESZ2		0x0040	/* ESZ2-bit: Size of page */
-#define _PAGE_EXT_ESZ3		0x0080	/* ESZ3-bit: Size of page */
-
-#define _PAGE_EXT_USER_EXEC	0x0100	/* EPR0-bit: User space executable */
-#define _PAGE_EXT_USER_WRITE	0x0200	/* EPR1-bit: User space writable */
-#define _PAGE_EXT_USER_READ	0x0400	/* EPR2-bit: User space readable */
-
-#define _PAGE_EXT_KERN_EXEC	0x0800	/* EPR3-bit: Kernel space executable */
-#define _PAGE_EXT_KERN_WRITE	0x1000	/* EPR4-bit: Kernel space writable */
-#define _PAGE_EXT_KERN_READ	0x2000	/* EPR5-bit: Kernel space readable */
-
-/* Wrapper for extended mode pgprot twiddling */
-#define _PAGE_EXT(x)		((unsigned long long)(x) << 32)
-
-/* software: moves to PTEA.TC (Timing Control) */
-#define _PAGE_PCC_AREA5	0x00000000	/* use BSC registers for area5 */
-#define _PAGE_PCC_AREA6	0x80000000	/* use BSC registers for area6 */
-
-/* software: moves to PTEA.SA[2:0] (Space Attributes) */
-#define _PAGE_PCC_IODYN 0x00000001	/* IO space, dynamically sized bus */
-#define _PAGE_PCC_IO8	0x20000000	/* IO space, 8 bit bus */
-#define _PAGE_PCC_IO16	0x20000001	/* IO space, 16 bit bus */
-#define _PAGE_PCC_COM8	0x40000000	/* Common Memory space, 8 bit bus */
-#define _PAGE_PCC_COM16	0x40000001	/* Common Memory space, 16 bit bus */
-#define _PAGE_PCC_ATR8	0x60000000	/* Attribute Memory space, 8 bit bus */
-#define _PAGE_PCC_ATR16	0x60000001	/* Attribute Memory space, 6 bit bus */
-
-/* Mask which drops unused bits from the PTEL value */
-#if defined(CONFIG_CPU_SH3)
-#define _PAGE_CLEAR_FLAGS	(_PAGE_PROTNONE | _PAGE_ACCESSED| \
-				 _PAGE_FILE	| _PAGE_SZ1	| \
-				 _PAGE_HW_SHARED)
-#elif defined(CONFIG_X2TLB)
-/* Get rid of the legacy PR/SZ bits when using extended mode */
-#define _PAGE_CLEAR_FLAGS	(_PAGE_PROTNONE | _PAGE_ACCESSED | \
-				 _PAGE_FILE | _PAGE_PR_MASK | _PAGE_SZ_MASK)
-#else
-#define _PAGE_CLEAR_FLAGS	(_PAGE_PROTNONE | _PAGE_ACCESSED | _PAGE_FILE)
-#endif
-
-#define _PAGE_FLAGS_HARDWARE_MASK	(0x1fffffff & ~(_PAGE_CLEAR_FLAGS))
-
-/* Hardware flags, page size encoding */
-#if defined(CONFIG_X2TLB)
-# if defined(CONFIG_PAGE_SIZE_4KB)
-#  define _PAGE_FLAGS_HARD	_PAGE_EXT(_PAGE_EXT_ESZ0)
-# elif defined(CONFIG_PAGE_SIZE_8KB)
-#  define _PAGE_FLAGS_HARD	_PAGE_EXT(_PAGE_EXT_ESZ1)
-# elif defined(CONFIG_PAGE_SIZE_64KB)
-#  define _PAGE_FLAGS_HARD	_PAGE_EXT(_PAGE_EXT_ESZ2)
-# endif
-#else
-# if defined(CONFIG_PAGE_SIZE_4KB)
-#  define _PAGE_FLAGS_HARD	_PAGE_SZ0
-# elif defined(CONFIG_PAGE_SIZE_64KB)
-#  define _PAGE_FLAGS_HARD	_PAGE_SZ1
-# endif
-#endif
-
-#if defined(CONFIG_X2TLB)
-# if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
-#  define _PAGE_SZHUGE	(_PAGE_EXT_ESZ2)
-# elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K)
-#  define _PAGE_SZHUGE	(_PAGE_EXT_ESZ0 | _PAGE_EXT_ESZ2)
-# elif defined(CONFIG_HUGETLB_PAGE_SIZE_1MB)
-#  define _PAGE_SZHUGE	(_PAGE_EXT_ESZ0 | _PAGE_EXT_ESZ1 | _PAGE_EXT_ESZ2)
-# elif defined(CONFIG_HUGETLB_PAGE_SIZE_4MB)
-#  define _PAGE_SZHUGE	(_PAGE_EXT_ESZ3)
-# elif defined(CONFIG_HUGETLB_PAGE_SIZE_64MB)
-#  define _PAGE_SZHUGE	(_PAGE_EXT_ESZ2 | _PAGE_EXT_ESZ3)
-# endif
+#if defined(CONFIG_SUPERH32)
+#include <asm/pgtable_32.h>
 #else
-# if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
-#  define _PAGE_SZHUGE	(_PAGE_SZ1)
-# elif defined(CONFIG_HUGETLB_PAGE_SIZE_1MB)
-#  define _PAGE_SZHUGE	(_PAGE_SZ0 | _PAGE_SZ1)
-# endif
-#endif
-
-/*
- * Stub out _PAGE_SZHUGE if we don't have a good definition for it,
- * to make pte_mkhuge() happy.
- */
-#ifndef _PAGE_SZHUGE
-# define _PAGE_SZHUGE	(_PAGE_FLAGS_HARD)
-#endif
-
-#define _PAGE_CHG_MASK \
-	(PTE_MASK | _PAGE_ACCESSED | _PAGE_CACHABLE | _PAGE_DIRTY)
-
-#ifndef __ASSEMBLY__
-
-#if defined(CONFIG_X2TLB) /* SH-X2 TLB */
-#define PAGE_NONE	__pgprot(_PAGE_PROTNONE | _PAGE_CACHABLE | \
-				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD)
-
-#define PAGE_SHARED	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \
-				 _PAGE_CACHABLE | _PAGE_FLAGS_HARD | \
-				 _PAGE_EXT(_PAGE_EXT_KERN_READ  | \
-					   _PAGE_EXT_KERN_WRITE | \
-					   _PAGE_EXT_USER_READ  | \
-					   _PAGE_EXT_USER_WRITE))
-
-#define PAGE_EXECREAD	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \
-				 _PAGE_CACHABLE | _PAGE_FLAGS_HARD | \
-				 _PAGE_EXT(_PAGE_EXT_KERN_EXEC | \
-					   _PAGE_EXT_KERN_READ | \
-					   _PAGE_EXT_USER_EXEC | \
-					   _PAGE_EXT_USER_READ))
-
-#define PAGE_COPY	PAGE_EXECREAD
-
-#define PAGE_READONLY	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \
-				 _PAGE_CACHABLE | _PAGE_FLAGS_HARD | \
-				 _PAGE_EXT(_PAGE_EXT_KERN_READ | \
-					   _PAGE_EXT_USER_READ))
-
-#define PAGE_WRITEONLY	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \
-				 _PAGE_CACHABLE | _PAGE_FLAGS_HARD | \
-				 _PAGE_EXT(_PAGE_EXT_KERN_WRITE | \
-					   _PAGE_EXT_USER_WRITE))
-
-#define PAGE_RWX	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \
-				 _PAGE_CACHABLE | _PAGE_FLAGS_HARD | \
-				 _PAGE_EXT(_PAGE_EXT_KERN_WRITE | \
-					   _PAGE_EXT_KERN_READ  | \
-					   _PAGE_EXT_KERN_EXEC  | \
-					   _PAGE_EXT_USER_WRITE | \
-					   _PAGE_EXT_USER_READ  | \
-					   _PAGE_EXT_USER_EXEC))
-
-#define PAGE_KERNEL	__pgprot(_PAGE_PRESENT | _PAGE_CACHABLE | \
-				 _PAGE_DIRTY | _PAGE_ACCESSED | \
-				 _PAGE_HW_SHARED | _PAGE_FLAGS_HARD | \
-				 _PAGE_EXT(_PAGE_EXT_KERN_READ | \
-					   _PAGE_EXT_KERN_WRITE | \
-					   _PAGE_EXT_KERN_EXEC))
-
-#define PAGE_KERNEL_NOCACHE \
-			__pgprot(_PAGE_PRESENT | _PAGE_DIRTY | \
-				 _PAGE_ACCESSED | _PAGE_HW_SHARED | \
-				 _PAGE_FLAGS_HARD | \
-				 _PAGE_EXT(_PAGE_EXT_KERN_READ | \
-					   _PAGE_EXT_KERN_WRITE | \
-					   _PAGE_EXT_KERN_EXEC))
-
-#define PAGE_KERNEL_RO	__pgprot(_PAGE_PRESENT | _PAGE_CACHABLE | \
-				 _PAGE_DIRTY | _PAGE_ACCESSED | \
-				 _PAGE_HW_SHARED | _PAGE_FLAGS_HARD | \
-				 _PAGE_EXT(_PAGE_EXT_KERN_READ | \
-					   _PAGE_EXT_KERN_EXEC))
-
-#define PAGE_KERNEL_PCC(slot, type) \
-			__pgprot(_PAGE_PRESENT | _PAGE_DIRTY | \
-				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD | \
-				 _PAGE_EXT(_PAGE_EXT_KERN_READ | \
-					   _PAGE_EXT_KERN_WRITE | \
-					   _PAGE_EXT_KERN_EXEC) \
-				 (slot ? _PAGE_PCC_AREA5 : _PAGE_PCC_AREA6) | \
-				 (type))
-
-#elif defined(CONFIG_MMU) /* SH-X TLB */
-#define PAGE_NONE	__pgprot(_PAGE_PROTNONE | _PAGE_CACHABLE | \
-				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD)
-
-#define PAGE_SHARED	__pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
-				 _PAGE_CACHABLE | _PAGE_ACCESSED | \
-				 _PAGE_FLAGS_HARD)
-
-#define PAGE_COPY	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | \
-				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD)
-
-#define PAGE_READONLY	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | \
-				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD)
-
-#define PAGE_EXECREAD	PAGE_READONLY
-#define PAGE_RWX	PAGE_SHARED
-#define PAGE_WRITEONLY	PAGE_SHARED
-
-#define PAGE_KERNEL	__pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_CACHABLE | \
-				 _PAGE_DIRTY | _PAGE_ACCESSED | \
-				 _PAGE_HW_SHARED | _PAGE_FLAGS_HARD)
-
-#define PAGE_KERNEL_NOCACHE \
-			__pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | \
-				 _PAGE_ACCESSED | _PAGE_HW_SHARED | \
-				 _PAGE_FLAGS_HARD)
-
-#define PAGE_KERNEL_RO	__pgprot(_PAGE_PRESENT | _PAGE_CACHABLE | \
-				 _PAGE_DIRTY | _PAGE_ACCESSED | \
-				 _PAGE_HW_SHARED | _PAGE_FLAGS_HARD)
-
-#define PAGE_KERNEL_PCC(slot, type) \
-			__pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | \
-				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD | \
-				 (slot ? _PAGE_PCC_AREA5 : _PAGE_PCC_AREA6) | \
-				 (type))
-#else /* no mmu */
-#define PAGE_NONE		__pgprot(0)
-#define PAGE_SHARED		__pgprot(0)
-#define PAGE_COPY		__pgprot(0)
-#define PAGE_EXECREAD		__pgprot(0)
-#define PAGE_RWX		__pgprot(0)
-#define PAGE_READONLY		__pgprot(0)
-#define PAGE_WRITEONLY		__pgprot(0)
-#define PAGE_KERNEL		__pgprot(0)
-#define PAGE_KERNEL_NOCACHE	__pgprot(0)
-#define PAGE_KERNEL_RO		__pgprot(0)
-
-#define PAGE_KERNEL_PCC(slot, type) \
-				__pgprot(0)
+#include <asm/pgtable_64.h>
 #endif
 
-#endif /* __ASSEMBLY__ */
-
 /*
  * SH-X and lower (legacy) SuperH parts (SH-3, SH-4, some SH-4A) can't do page
  * protection for execute, and considers it the same as a read. Also, write
@@ -378,208 +112,6 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 #define __S110	PAGE_RWX
 #define __S111	PAGE_RWX
 
-#ifndef __ASSEMBLY__
-
-/*
- * Certain architectures need to do special things when PTEs
- * within a page table are directly modified.  Thus, the following
- * hook is made available.
- */
-#ifdef CONFIG_X2TLB
-static inline void set_pte(pte_t *ptep, pte_t pte)
-{
-	ptep->pte_high = pte.pte_high;
-	smp_wmb();
-	ptep->pte_low = pte.pte_low;
-}
-#else
-#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
-#endif
-
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
-
-/*
- * (pmds are folded into pgds so this doesn't get actually called,
- * but the define is needed for a generic inline function.)
- */
-#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
-
-#define pte_pfn(x)		((unsigned long)(((x).pte_low >> PAGE_SHIFT)))
-
-#define pfn_pte(pfn, prot) \
-	__pte(((unsigned long long)(pfn) << PAGE_SHIFT) | pgprot_val(prot))
-#define pfn_pmd(pfn, prot) \
-	__pmd(((unsigned long long)(pfn) << PAGE_SHIFT) | pgprot_val(prot))
-
-#define pte_none(x)		(!pte_val(x))
-#define pte_present(x)		((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE))
-
-#define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
-
-#define pmd_none(x)	(!pmd_val(x))
-#define pmd_present(x)	(pmd_val(x))
-#define pmd_clear(xp)	do { set_pmd(xp, __pmd(0)); } while (0)
-#define	pmd_bad(x)	(pmd_val(x) & ~PAGE_MASK)
-
-#define pages_to_mb(x)	((x) >> (20-PAGE_SHIFT))
-#define pte_page(x)	pfn_to_page(pte_pfn(x))
-
-/*
- * The following only work if pte_present() is true.
- * Undefined behaviour if not..
- */
-#define pte_not_present(pte)	(!((pte).pte_low & _PAGE_PRESENT))
-#define pte_dirty(pte)		((pte).pte_low & _PAGE_DIRTY)
-#define pte_young(pte)		((pte).pte_low & _PAGE_ACCESSED)
-#define pte_file(pte)		((pte).pte_low & _PAGE_FILE)
-
-#ifdef CONFIG_X2TLB
-#define pte_write(pte)		((pte).pte_high & _PAGE_EXT_USER_WRITE)
-#else
-#define pte_write(pte)		((pte).pte_low & _PAGE_RW)
-#endif
-
-#define PTE_BIT_FUNC(h,fn,op) \
-static inline pte_t pte_##fn(pte_t pte) { pte.pte_##h op; return pte; }
-
-#ifdef CONFIG_X2TLB
-/*
- * We cheat a bit in the SH-X2 TLB case. As the permission bits are
- * individually toggled (and user permissions are entirely decoupled from
- * kernel permissions), we attempt to couple them a bit more sanely here.
- */
-PTE_BIT_FUNC(high, wrprotect, &= ~_PAGE_EXT_USER_WRITE);
-PTE_BIT_FUNC(high, mkwrite, |= _PAGE_EXT_USER_WRITE | _PAGE_EXT_KERN_WRITE);
-PTE_BIT_FUNC(high, mkhuge, |= _PAGE_SZHUGE);
-#else
-PTE_BIT_FUNC(low, wrprotect, &= ~_PAGE_RW);
-PTE_BIT_FUNC(low, mkwrite, |= _PAGE_RW);
-PTE_BIT_FUNC(low, mkhuge, |= _PAGE_SZHUGE);
-#endif
-
-PTE_BIT_FUNC(low, mkclean, &= ~_PAGE_DIRTY);
-PTE_BIT_FUNC(low, mkdirty, |= _PAGE_DIRTY);
-PTE_BIT_FUNC(low, mkold, &= ~_PAGE_ACCESSED);
-PTE_BIT_FUNC(low, mkyoung, |= _PAGE_ACCESSED);
-
-/*
- * Macro and implementation to make a page protection as uncachable.
- */
-#define pgprot_writecombine(prot) \
-	__pgprot(pgprot_val(prot) & ~_PAGE_CACHABLE)
-
-#define pgprot_noncached	 pgprot_writecombine
-
-/*
- * Conversion functions: convert a page and protection to a page entry,
- * and a page entry and page directory to the page they refer to.
- *
- * extern pte_t mk_pte(struct page *page, pgprot_t pgprot)
- */
-#define mk_pte(page, pgprot)	pfn_pte(page_to_pfn(page), (pgprot))
-
-static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
-{
-	pte.pte_low &= _PAGE_CHG_MASK;
-	pte.pte_low |= pgprot_val(newprot);
-
-#ifdef CONFIG_X2TLB
-	pte.pte_high |= pgprot_val(newprot) >> 32;
-#endif
-
-	return pte;
-}
-
-#define pmd_page_vaddr(pmd)	((unsigned long)pmd_val(pmd))
-#define pmd_page(pmd)		(virt_to_page(pmd_val(pmd)))
-
-/* to find an entry in a page-table-directory. */
-#define pgd_index(address)	(((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
-#define pgd_offset(mm, address)	((mm)->pgd+pgd_index(address))
-
-/* to find an entry in a kernel page-table-directory */
-#define pgd_offset_k(address)	pgd_offset(&init_mm, address)
-
-/* Find an entry in the third-level page table.. */
-#define pte_index(address)	((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
-#define pte_offset_kernel(dir, address) \
-	((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
-#define pte_offset_map(dir, address)		pte_offset_kernel(dir, address)
-#define pte_offset_map_nested(dir, address)	pte_offset_kernel(dir, address)
-
-#define pte_unmap(pte)		do { } while (0)
-#define pte_unmap_nested(pte)	do { } while (0)
-
-#ifdef CONFIG_X2TLB
-#define pte_ERROR(e) \
-	printk("%s:%d: bad pte %p(%08lx%08lx).\n", __FILE__, __LINE__, \
-	       &(e), (e).pte_high, (e).pte_low)
-#define pgd_ERROR(e) \
-	printk("%s:%d: bad pgd %016llx.\n", __FILE__, __LINE__, pgd_val(e))
-#else
-#define pte_ERROR(e) \
-	printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
-#define pgd_ERROR(e) \
-	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
-#endif
-
-struct vm_area_struct;
-extern void update_mmu_cache(struct vm_area_struct * vma,
-			     unsigned long address, pte_t pte);
-
-/*
- * Encode and de-code a swap entry
- *
- * Constraints:
- *	_PAGE_FILE at bit 0
- *	_PAGE_PRESENT at bit 8
- *	_PAGE_PROTNONE at bit 9
- *
- * For the normal case, we encode the swap type into bits 0:7 and the
- * swap offset into bits 10:30. For the 64-bit PTE case, we keep the
- * preserved bits in the low 32-bits and use the upper 32 as the swap
- * offset (along with a 5-bit type), following the same approach as x86
- * PAE. This keeps the logic quite simple, and allows for a full 32
- * PTE_FILE_MAX_BITS, as opposed to the 29-bits we're constrained with
- * in the pte_low case.
- *
- * As is evident by the Alpha code, if we ever get a 64-bit unsigned
- * long (swp_entry_t) to match up with the 64-bit PTEs, this all becomes
- * much cleaner..
- *
- * NOTE: We should set ZEROs at the position of _PAGE_PRESENT
- *       and _PAGE_PROTNONE bits
- */
-#ifdef CONFIG_X2TLB
-#define __swp_type(x)			((x).val & 0x1f)
-#define __swp_offset(x)			((x).val >> 5)
-#define __swp_entry(type, offset)	((swp_entry_t){ (type) | (offset) << 5})
-#define __pte_to_swp_entry(pte)		((swp_entry_t){ (pte).pte_high })
-#define __swp_entry_to_pte(x)		((pte_t){ 0, (x).val })
-
-/*
- * Encode and decode a nonlinear file mapping entry
- */
-#define pte_to_pgoff(pte)		((pte).pte_high)
-#define pgoff_to_pte(off)		((pte_t) { _PAGE_FILE, (off) })
-
-#define PTE_FILE_MAX_BITS		32
-#else
-#define __swp_type(x)			((x).val & 0xff)
-#define __swp_offset(x)			((x).val >> 10)
-#define __swp_entry(type, offset)	((swp_entry_t){(type) | (offset) <<10})
-
-#define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) >> 1 })
-#define __swp_entry_to_pte(x)		((pte_t) { (x).val << 1 })
-
-/*
- * Encode and decode a nonlinear file mapping entry
- */
-#define PTE_FILE_MAX_BITS	29
-#define pte_to_pgoff(pte)	(pte_val(pte) >> 1)
-#define pgoff_to_pte(off)	((pte_t) { ((off) << 1) | _PAGE_FILE })
-#endif
-
 typedef pte_t *pte_addr_t;
 
 #define kern_addr_valid(addr)	(1)
@@ -587,27 +119,26 @@ typedef pte_t *pte_addr_t;
 #define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
 		remap_pfn_range(vma, vaddr, pfn, size, prot)
 
-struct mm_struct;
+#define pte_pfn(x)		((unsigned long)(((x).pte_low >> PAGE_SHIFT)))
 
 /*
  * No page table caches to initialise
  */
 #define pgtable_cache_init()	do { } while (0)
 
-#ifndef CONFIG_MMU
-extern unsigned int kobjsize(const void *objp);
-#endif /* !CONFIG_MMU */
-
 #if !defined(CONFIG_CACHE_OFF) && (defined(CONFIG_CPU_SH4) || \
 	defined(CONFIG_SH7705_CACHE_32KB))
+struct mm_struct;
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
-extern pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
+pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
 #endif
 
+struct vm_area_struct;
+extern void update_mmu_cache(struct vm_area_struct * vma,
+			     unsigned long address, pte_t pte);
 extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
 extern void paging_init(void);
 
 #include <asm-generic/pgtable.h>
 
-#endif /* !__ASSEMBLY__ */
-#endif /* __ASM_SH_PAGE_H */
+#endif /* __ASM_SH_PGTABLE_H */
diff --git a/include/asm-sh/pgtable_32.h b/include/asm-sh/pgtable_32.h
new file mode 100644
index 000000000000..70303603e89d
--- /dev/null
+++ b/include/asm-sh/pgtable_32.h
@@ -0,0 +1,473 @@
+#ifndef __ASM_SH_PGTABLE_32_H
+#define __ASM_SH_PGTABLE_32_H
+
+/*
+ * Linux PTEL encoding.
+ *
+ * Hardware and software bit definitions for the PTEL value (see below for
+ * notes on SH-X2 MMUs and 64-bit PTEs):
+ *
+ * - Bits 0 and 7 are reserved on SH-3 (_PAGE_WT and _PAGE_SZ1 on SH-4).
+ *
+ * - Bit 1 is the SH-bit, but is unused on SH-3 due to an MMU bug (the
+ *   hardware PTEL value can't have the SH-bit set when MMUCR.IX is set,
+ *   which is the default in cpu-sh3/mmu_context.h:MMU_CONTROL_INIT).
+ *
+ *   In order to keep this relatively clean, do not use these for defining
+ *   SH-3 specific flags until all of the other unused bits have been
+ *   exhausted.
+ *
+ * - Bit 9 is reserved by everyone and used by _PAGE_PROTNONE.
+ *
+ * - Bits 10 and 11 are low bits of the PPN that are reserved on >= 4K pages.
+ *   Bit 10 is used for _PAGE_ACCESSED, bit 11 remains unused.
+ *
+ * - Bits 31, 30, and 29 remain unused by everyone and can be used for future
+ *   software flags, although care must be taken to update _PAGE_CLEAR_FLAGS.
+ *
+ * XXX: Leave the _PAGE_FILE and _PAGE_WT overhaul for a rainy day.
+ *
+ * SH-X2 MMUs and extended PTEs
+ *
+ * SH-X2 supports an extended mode TLB with split data arrays due to the
+ * number of bits needed for PR and SZ (now EPR and ESZ) encodings. The PR and
+ * SZ bit placeholders still exist in data array 1, but are implemented as
+ * reserved bits, with the real logic existing in data array 2.
+ *
+ * The downside to this is that we can no longer fit everything in to a 32-bit
+ * PTE encoding, so a 64-bit pte_t is necessary for these parts. On the plus
+ * side, this gives us quite a few spare bits to play with for future usage.
+ */
+/* Legacy and compat mode bits */
+#define	_PAGE_WT	0x001		/* WT-bit on SH-4, 0 on SH-3 */
+#define _PAGE_HW_SHARED	0x002		/* SH-bit  : shared among processes */
+#define _PAGE_DIRTY	0x004		/* D-bit   : page changed */
+#define _PAGE_CACHABLE	0x008		/* C-bit   : cachable */
+#define _PAGE_SZ0	0x010		/* SZ0-bit : Size of page */
+#define _PAGE_RW	0x020		/* PR0-bit : write access allowed */
+#define _PAGE_USER	0x040		/* PR1-bit : user space access allowed*/
+#define _PAGE_SZ1	0x080		/* SZ1-bit : Size of page (on SH-4) */
+#define _PAGE_PRESENT	0x100		/* V-bit   : page is valid */
+#define _PAGE_PROTNONE	0x200		/* software: if not present  */
+#define _PAGE_ACCESSED	0x400		/* software: page referenced */
+#define _PAGE_FILE	_PAGE_WT	/* software: pagecache or swap? */
+
+#define _PAGE_SZ_MASK	(_PAGE_SZ0 | _PAGE_SZ1)
+#define _PAGE_PR_MASK	(_PAGE_RW | _PAGE_USER)
+
+/* Extended mode bits */
+#define _PAGE_EXT_ESZ0		0x0010	/* ESZ0-bit: Size of page */
+#define _PAGE_EXT_ESZ1		0x0020	/* ESZ1-bit: Size of page */
+#define _PAGE_EXT_ESZ2		0x0040	/* ESZ2-bit: Size of page */
+#define _PAGE_EXT_ESZ3		0x0080	/* ESZ3-bit: Size of page */
+
+#define _PAGE_EXT_USER_EXEC	0x0100	/* EPR0-bit: User space executable */
+#define _PAGE_EXT_USER_WRITE	0x0200	/* EPR1-bit: User space writable */
+#define _PAGE_EXT_USER_READ	0x0400	/* EPR2-bit: User space readable */
+
+#define _PAGE_EXT_KERN_EXEC	0x0800	/* EPR3-bit: Kernel space executable */
+#define _PAGE_EXT_KERN_WRITE	0x1000	/* EPR4-bit: Kernel space writable */
+#define _PAGE_EXT_KERN_READ	0x2000	/* EPR5-bit: Kernel space readable */
+
+/* Wrapper for extended mode pgprot twiddling */
+#define _PAGE_EXT(x)		((unsigned long long)(x) << 32)
+
+/* software: moves to PTEA.TC (Timing Control) */
+#define _PAGE_PCC_AREA5	0x00000000	/* use BSC registers for area5 */
+#define _PAGE_PCC_AREA6	0x80000000	/* use BSC registers for area6 */
+
+/* software: moves to PTEA.SA[2:0] (Space Attributes) */
+#define _PAGE_PCC_IODYN 0x00000001	/* IO space, dynamically sized bus */
+#define _PAGE_PCC_IO8	0x20000000	/* IO space, 8 bit bus */
+#define _PAGE_PCC_IO16	0x20000001	/* IO space, 16 bit bus */
+#define _PAGE_PCC_COM8	0x40000000	/* Common Memory space, 8 bit bus */
+#define _PAGE_PCC_COM16	0x40000001	/* Common Memory space, 16 bit bus */
+#define _PAGE_PCC_ATR8	0x60000000	/* Attribute Memory space, 8 bit bus */
+#define _PAGE_PCC_ATR16	0x60000001	/* Attribute Memory space, 6 bit bus */
+
+/* Mask which drops unused bits from the PTEL value */
+#if defined(CONFIG_CPU_SH3)
+#define _PAGE_CLEAR_FLAGS	(_PAGE_PROTNONE | _PAGE_ACCESSED| \
+				 _PAGE_FILE	| _PAGE_SZ1	| \
+				 _PAGE_HW_SHARED)
+#elif defined(CONFIG_X2TLB)
+/* Get rid of the legacy PR/SZ bits when using extended mode */
+#define _PAGE_CLEAR_FLAGS	(_PAGE_PROTNONE | _PAGE_ACCESSED | \
+				 _PAGE_FILE | _PAGE_PR_MASK | _PAGE_SZ_MASK)
+#else
+#define _PAGE_CLEAR_FLAGS	(_PAGE_PROTNONE | _PAGE_ACCESSED | _PAGE_FILE)
+#endif
+
+#define _PAGE_FLAGS_HARDWARE_MASK	(0x1fffffff & ~(_PAGE_CLEAR_FLAGS))
+
+/* Hardware flags, page size encoding */
+#if defined(CONFIG_X2TLB)
+# if defined(CONFIG_PAGE_SIZE_4KB)
+#  define _PAGE_FLAGS_HARD	_PAGE_EXT(_PAGE_EXT_ESZ0)
+# elif defined(CONFIG_PAGE_SIZE_8KB)
+#  define _PAGE_FLAGS_HARD	_PAGE_EXT(_PAGE_EXT_ESZ1)
+# elif defined(CONFIG_PAGE_SIZE_64KB)
+#  define _PAGE_FLAGS_HARD	_PAGE_EXT(_PAGE_EXT_ESZ2)
+# endif
+#else
+# if defined(CONFIG_PAGE_SIZE_4KB)
+#  define _PAGE_FLAGS_HARD	_PAGE_SZ0
+# elif defined(CONFIG_PAGE_SIZE_64KB)
+#  define _PAGE_FLAGS_HARD	_PAGE_SZ1
+# endif
+#endif
+
+#if defined(CONFIG_X2TLB)
+# if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
+#  define _PAGE_SZHUGE	(_PAGE_EXT_ESZ2)
+# elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K)
+#  define _PAGE_SZHUGE	(_PAGE_EXT_ESZ0 | _PAGE_EXT_ESZ2)
+# elif defined(CONFIG_HUGETLB_PAGE_SIZE_1MB)
+#  define _PAGE_SZHUGE	(_PAGE_EXT_ESZ0 | _PAGE_EXT_ESZ1 | _PAGE_EXT_ESZ2)
+# elif defined(CONFIG_HUGETLB_PAGE_SIZE_4MB)
+#  define _PAGE_SZHUGE	(_PAGE_EXT_ESZ3)
+# elif defined(CONFIG_HUGETLB_PAGE_SIZE_64MB)
+#  define _PAGE_SZHUGE	(_PAGE_EXT_ESZ2 | _PAGE_EXT_ESZ3)
+# endif
+#else
+# if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
+#  define _PAGE_SZHUGE	(_PAGE_SZ1)
+# elif defined(CONFIG_HUGETLB_PAGE_SIZE_1MB)
+#  define _PAGE_SZHUGE	(_PAGE_SZ0 | _PAGE_SZ1)
+# endif
+#endif
+
+/*
+ * Stub out _PAGE_SZHUGE if we don't have a good definition for it,
+ * to make pte_mkhuge() happy.
+ */
+#ifndef _PAGE_SZHUGE
+# define _PAGE_SZHUGE	(_PAGE_FLAGS_HARD)
+#endif
+
+#define _PAGE_CHG_MASK \
+	(PTE_MASK | _PAGE_ACCESSED | _PAGE_CACHABLE | _PAGE_DIRTY)
+
+#ifndef __ASSEMBLY__
+
+#if defined(CONFIG_X2TLB) /* SH-X2 TLB */
+#define PAGE_NONE	__pgprot(_PAGE_PROTNONE | _PAGE_CACHABLE | \
+				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD)
+
+#define PAGE_SHARED	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \
+				 _PAGE_CACHABLE | _PAGE_FLAGS_HARD | \
+				 _PAGE_EXT(_PAGE_EXT_KERN_READ  | \
+					   _PAGE_EXT_KERN_WRITE | \
+					   _PAGE_EXT_USER_READ  | \
+					   _PAGE_EXT_USER_WRITE))
+
+#define PAGE_EXECREAD	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \
+				 _PAGE_CACHABLE | _PAGE_FLAGS_HARD | \
+				 _PAGE_EXT(_PAGE_EXT_KERN_EXEC | \
+					   _PAGE_EXT_KERN_READ | \
+					   _PAGE_EXT_USER_EXEC | \
+					   _PAGE_EXT_USER_READ))
+
+#define PAGE_COPY	PAGE_EXECREAD
+
+#define PAGE_READONLY	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \
+				 _PAGE_CACHABLE | _PAGE_FLAGS_HARD | \
+				 _PAGE_EXT(_PAGE_EXT_KERN_READ | \
+					   _PAGE_EXT_USER_READ))
+
+#define PAGE_WRITEONLY	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \
+				 _PAGE_CACHABLE | _PAGE_FLAGS_HARD | \
+				 _PAGE_EXT(_PAGE_EXT_KERN_WRITE | \
+					   _PAGE_EXT_USER_WRITE))
+
+#define PAGE_RWX	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \
+				 _PAGE_CACHABLE | _PAGE_FLAGS_HARD | \
+				 _PAGE_EXT(_PAGE_EXT_KERN_WRITE | \
+					   _PAGE_EXT_KERN_READ  | \
+					   _PAGE_EXT_KERN_EXEC  | \
+					   _PAGE_EXT_USER_WRITE | \
+					   _PAGE_EXT_USER_READ  | \
+					   _PAGE_EXT_USER_EXEC))
+
+#define PAGE_KERNEL	__pgprot(_PAGE_PRESENT | _PAGE_CACHABLE | \
+				 _PAGE_DIRTY | _PAGE_ACCESSED | \
+				 _PAGE_HW_SHARED | _PAGE_FLAGS_HARD | \
+				 _PAGE_EXT(_PAGE_EXT_KERN_READ | \
+					   _PAGE_EXT_KERN_WRITE | \
+					   _PAGE_EXT_KERN_EXEC))
+
+#define PAGE_KERNEL_NOCACHE \
+			__pgprot(_PAGE_PRESENT | _PAGE_DIRTY | \
+				 _PAGE_ACCESSED | _PAGE_HW_SHARED | \
+				 _PAGE_FLAGS_HARD | \
+				 _PAGE_EXT(_PAGE_EXT_KERN_READ | \
+					   _PAGE_EXT_KERN_WRITE | \
+					   _PAGE_EXT_KERN_EXEC))
+
+#define PAGE_KERNEL_RO	__pgprot(_PAGE_PRESENT | _PAGE_CACHABLE | \
+				 _PAGE_DIRTY | _PAGE_ACCESSED | \
+				 _PAGE_HW_SHARED | _PAGE_FLAGS_HARD | \
+				 _PAGE_EXT(_PAGE_EXT_KERN_READ | \
+					   _PAGE_EXT_KERN_EXEC))
+
+#define PAGE_KERNEL_PCC(slot, type) \
+			__pgprot(_PAGE_PRESENT | _PAGE_DIRTY | \
+				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD | \
+				 _PAGE_EXT(_PAGE_EXT_KERN_READ | \
+					   _PAGE_EXT_KERN_WRITE | \
+					   _PAGE_EXT_KERN_EXEC) \
+				 (slot ? _PAGE_PCC_AREA5 : _PAGE_PCC_AREA6) | \
+				 (type))
+
+#elif defined(CONFIG_MMU) /* SH-X TLB */
+#define PAGE_NONE	__pgprot(_PAGE_PROTNONE | _PAGE_CACHABLE | \
+				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD)
+
+#define PAGE_SHARED	__pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
+				 _PAGE_CACHABLE | _PAGE_ACCESSED | \
+				 _PAGE_FLAGS_HARD)
+
+#define PAGE_COPY	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | \
+				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD)
+
+#define PAGE_READONLY	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | \
+				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD)
+
+#define PAGE_EXECREAD	PAGE_READONLY
+#define PAGE_RWX	PAGE_SHARED
+#define PAGE_WRITEONLY	PAGE_SHARED
+
+#define PAGE_KERNEL	__pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_CACHABLE | \
+				 _PAGE_DIRTY | _PAGE_ACCESSED | \
+				 _PAGE_HW_SHARED | _PAGE_FLAGS_HARD)
+
+#define PAGE_KERNEL_NOCACHE \
+			__pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | \
+				 _PAGE_ACCESSED | _PAGE_HW_SHARED | \
+				 _PAGE_FLAGS_HARD)
+
+#define PAGE_KERNEL_RO	__pgprot(_PAGE_PRESENT | _PAGE_CACHABLE | \
+				 _PAGE_DIRTY | _PAGE_ACCESSED | \
+				 _PAGE_HW_SHARED | _PAGE_FLAGS_HARD)
+
+#define PAGE_KERNEL_PCC(slot, type) \
+			__pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | \
+				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD | \
+				 (slot ? _PAGE_PCC_AREA5 : _PAGE_PCC_AREA6) | \
+				 (type))
+#else /* no mmu */
+#define PAGE_NONE		__pgprot(0)
+#define PAGE_SHARED		__pgprot(0)
+#define PAGE_COPY		__pgprot(0)
+#define PAGE_EXECREAD		__pgprot(0)
+#define PAGE_RWX		__pgprot(0)
+#define PAGE_READONLY		__pgprot(0)
+#define PAGE_WRITEONLY		__pgprot(0)
+#define PAGE_KERNEL		__pgprot(0)
+#define PAGE_KERNEL_NOCACHE	__pgprot(0)
+#define PAGE_KERNEL_RO		__pgprot(0)
+
+#define PAGE_KERNEL_PCC(slot, type) \
+				__pgprot(0)
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#ifndef __ASSEMBLY__
+
+/*
+ * Certain architectures need to do special things when PTEs
+ * within a page table are directly modified.  Thus, the following
+ * hook is made available.
+ */
+#ifdef CONFIG_X2TLB
+static inline void set_pte(pte_t *ptep, pte_t pte)
+{
+	ptep->pte_high = pte.pte_high;
+	smp_wmb();
+	ptep->pte_low = pte.pte_low;
+}
+#else
+#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
+#endif
+
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+/*
+ * (pmds are folded into pgds so this doesn't get actually called,
+ * but the define is needed for a generic inline function.)
+ */
+#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
+
+#define pfn_pte(pfn, prot) \
+	__pte(((unsigned long long)(pfn) << PAGE_SHIFT) | pgprot_val(prot))
+#define pfn_pmd(pfn, prot) \
+	__pmd(((unsigned long long)(pfn) << PAGE_SHIFT) | pgprot_val(prot))
+
+#define pte_none(x)		(!pte_val(x))
+#define pte_present(x)		((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE))
+
+#define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
+
+#define pmd_none(x)	(!pmd_val(x))
+#define pmd_present(x)	(pmd_val(x))
+#define pmd_clear(xp)	do { set_pmd(xp, __pmd(0)); } while (0)
+#define	pmd_bad(x)	(pmd_val(x) & ~PAGE_MASK)
+
+#define pages_to_mb(x)	((x) >> (20-PAGE_SHIFT))
+#define pte_page(x)	pfn_to_page(pte_pfn(x))
+
+/*
+ * The following only work if pte_present() is true.
+ * Undefined behaviour if not..
+ */
+#define pte_not_present(pte)	(!((pte).pte_low & _PAGE_PRESENT))
+#define pte_dirty(pte)		((pte).pte_low & _PAGE_DIRTY)
+#define pte_young(pte)		((pte).pte_low & _PAGE_ACCESSED)
+#define pte_file(pte)		((pte).pte_low & _PAGE_FILE)
+
+#ifdef CONFIG_X2TLB
+#define pte_write(pte)		((pte).pte_high & _PAGE_EXT_USER_WRITE)
+#else
+#define pte_write(pte)		((pte).pte_low & _PAGE_RW)
+#endif
+
+#define PTE_BIT_FUNC(h,fn,op) \
+static inline pte_t pte_##fn(pte_t pte) { pte.pte_##h op; return pte; }
+
+#ifdef CONFIG_X2TLB
+/*
+ * We cheat a bit in the SH-X2 TLB case. As the permission bits are
+ * individually toggled (and user permissions are entirely decoupled from
+ * kernel permissions), we attempt to couple them a bit more sanely here.
+ */
+PTE_BIT_FUNC(high, wrprotect, &= ~_PAGE_EXT_USER_WRITE);
+PTE_BIT_FUNC(high, mkwrite, |= _PAGE_EXT_USER_WRITE | _PAGE_EXT_KERN_WRITE);
+PTE_BIT_FUNC(high, mkhuge, |= _PAGE_SZHUGE);
+#else
+PTE_BIT_FUNC(low, wrprotect, &= ~_PAGE_RW);
+PTE_BIT_FUNC(low, mkwrite, |= _PAGE_RW);
+PTE_BIT_FUNC(low, mkhuge, |= _PAGE_SZHUGE);
+#endif
+
+PTE_BIT_FUNC(low, mkclean, &= ~_PAGE_DIRTY);
+PTE_BIT_FUNC(low, mkdirty, |= _PAGE_DIRTY);
+PTE_BIT_FUNC(low, mkold, &= ~_PAGE_ACCESSED);
+PTE_BIT_FUNC(low, mkyoung, |= _PAGE_ACCESSED);
+
+/*
+ * Macro and implementation to make a page protection as uncachable.
+ */
+#define pgprot_writecombine(prot) \
+	__pgprot(pgprot_val(prot) & ~_PAGE_CACHABLE)
+
+#define pgprot_noncached	 pgprot_writecombine
+
+/*
+ * Conversion functions: convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ *
+ * extern pte_t mk_pte(struct page *page, pgprot_t pgprot)
+ */
+#define mk_pte(page, pgprot)	pfn_pte(page_to_pfn(page), (pgprot))
+
+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{
+	pte.pte_low &= _PAGE_CHG_MASK;
+	pte.pte_low |= pgprot_val(newprot);
+
+#ifdef CONFIG_X2TLB
+	pte.pte_high |= pgprot_val(newprot) >> 32;
+#endif
+
+	return pte;
+}
+
+#define pmd_page_vaddr(pmd)	((unsigned long)pmd_val(pmd))
+#define pmd_page(pmd)		(virt_to_page(pmd_val(pmd)))
+
+/* to find an entry in a page-table-directory. */
+#define pgd_index(address)	(((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
+#define pgd_offset(mm, address)	((mm)->pgd+pgd_index(address))
+
+/* to find an entry in a kernel page-table-directory */
+#define pgd_offset_k(address)	pgd_offset(&init_mm, address)
+
+/* Find an entry in the third-level page table.. */
+#define pte_index(address)	((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
+#define pte_offset_kernel(dir, address) \
+	((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
+#define pte_offset_map(dir, address)		pte_offset_kernel(dir, address)
+#define pte_offset_map_nested(dir, address)	pte_offset_kernel(dir, address)
+
+#define pte_unmap(pte)		do { } while (0)
+#define pte_unmap_nested(pte)	do { } while (0)
+
+#ifdef CONFIG_X2TLB
+#define pte_ERROR(e) \
+	printk("%s:%d: bad pte %p(%08lx%08lx).\n", __FILE__, __LINE__, \
+	       &(e), (e).pte_high, (e).pte_low)
+#define pgd_ERROR(e) \
+	printk("%s:%d: bad pgd %016llx.\n", __FILE__, __LINE__, pgd_val(e))
+#else
+#define pte_ERROR(e) \
+	printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
+#define pgd_ERROR(e) \
+	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
+#endif
+
+/*
+ * Encode and de-code a swap entry
+ *
+ * Constraints:
+ *	_PAGE_FILE at bit 0
+ *	_PAGE_PRESENT at bit 8
+ *	_PAGE_PROTNONE at bit 9
+ *
+ * For the normal case, we encode the swap type into bits 0:7 and the
+ * swap offset into bits 10:30. For the 64-bit PTE case, we keep the
+ * preserved bits in the low 32-bits and use the upper 32 as the swap
+ * offset (along with a 5-bit type), following the same approach as x86
+ * PAE. This keeps the logic quite simple, and allows for a full 32
+ * PTE_FILE_MAX_BITS, as opposed to the 29-bits we're constrained with
+ * in the pte_low case.
+ *
+ * As is evident by the Alpha code, if we ever get a 64-bit unsigned
+ * long (swp_entry_t) to match up with the 64-bit PTEs, this all becomes
+ * much cleaner..
+ *
+ * NOTE: We should set ZEROs at the position of _PAGE_PRESENT
+ *       and _PAGE_PROTNONE bits
+ */
+#ifdef CONFIG_X2TLB
+#define __swp_type(x)			((x).val & 0x1f)
+#define __swp_offset(x)			((x).val >> 5)
+#define __swp_entry(type, offset)	((swp_entry_t){ (type) | (offset) << 5})
+#define __pte_to_swp_entry(pte)		((swp_entry_t){ (pte).pte_high })
+#define __swp_entry_to_pte(x)		((pte_t){ 0, (x).val })
+
+/*
+ * Encode and decode a nonlinear file mapping entry
+ */
+#define pte_to_pgoff(pte)		((pte).pte_high)
+#define pgoff_to_pte(off)		((pte_t) { _PAGE_FILE, (off) })
+
+#define PTE_FILE_MAX_BITS		32
+#else
+#define __swp_type(x)			((x).val & 0xff)
+#define __swp_offset(x)			((x).val >> 10)
+#define __swp_entry(type, offset)	((swp_entry_t){(type) | (offset) <<10})
+
+#define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) >> 1 })
+#define __swp_entry_to_pte(x)		((pte_t) { (x).val << 1 })
+
+/*
+ * Encode and decode a nonlinear file mapping entry
+ */
+#define PTE_FILE_MAX_BITS	29
+#define pte_to_pgoff(pte)	(pte_val(pte) >> 1)
+#define pgoff_to_pte(off)	((pte_t) { ((off) << 1) | _PAGE_FILE })
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_SH_PGTABLE_32_H */
diff --git a/include/asm-sh/pgtable_64.h b/include/asm-sh/pgtable_64.h
new file mode 100644
index 000000000000..d422111006f4
--- /dev/null
+++ b/include/asm-sh/pgtable_64.h
@@ -0,0 +1,300 @@
+#ifndef __ASM_SH64_PGTABLE_H
+#define __ASM_SH64_PGTABLE_H
+
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * include/asm-sh64/pgtable.h
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003, 2004  Paul Mundt
+ * Copyright (C) 2003, 2004  Richard Curnow
+ *
+ * This file contains the functions and defines necessary to modify and use
+ * the SuperH page table tree.
+ */
+
+#include <linux/threads.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+
+/*
+ * Error outputs.
+ */
+#define pte_ERROR(e) \
+	printk("%s:%d: bad pte %016Lx.\n", __FILE__, __LINE__, pte_val(e))
+#define pgd_ERROR(e) \
+	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
+
+/*
+ * Table setting routines. Used within arch/mm only.
+ */
+#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
+
+static __inline__ void set_pte(pte_t *pteptr, pte_t pteval)
+{
+	unsigned long long x = ((unsigned long long) pteval.pte_low);
+	unsigned long long *xp = (unsigned long long *) pteptr;
+	/*
+	 * Sign-extend based on NPHYS.
+	 */
+	*(xp) = (x & NPHYS_SIGN) ? (x | NPHYS_MASK) : x;
+}
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+static __inline__ void pmd_set(pmd_t *pmdp,pte_t *ptep)
+{
+	pmd_val(*pmdp) = (unsigned long) ptep;
+}
+
+/*
+ * PGD defines. Top level.
+ */
+
+/* To find an entry in a generic PGD. */
+#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
+#define __pgd_offset(address) pgd_index(address)
+#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address))
+
+/* To find an entry in a kernel PGD. */
+#define pgd_offset_k(address) pgd_offset(&init_mm, address)
+
+/*
+ * PMD level access routines. Same notes as above.
+ */
+#define _PMD_EMPTY		0x0
+/* Either the PMD is empty or present, it's not paged out */
+#define pmd_present(pmd_entry)	(pmd_val(pmd_entry) & _PAGE_PRESENT)
+#define pmd_clear(pmd_entry_p)	(set_pmd((pmd_entry_p), __pmd(_PMD_EMPTY)))
+#define pmd_none(pmd_entry)	(pmd_val((pmd_entry)) == _PMD_EMPTY)
+#define pmd_bad(pmd_entry)	((pmd_val(pmd_entry) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
+
+#define pmd_page_vaddr(pmd_entry) \
+	((unsigned long) __va(pmd_val(pmd_entry) & PAGE_MASK))
+
+#define pmd_page(pmd) \
+	(virt_to_page(pmd_val(pmd)))
+
+/* PMD to PTE dereferencing */
+#define pte_index(address) \
+		((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
+
+#define pte_offset_kernel(dir, addr) \
+		((pte_t *) ((pmd_val(*(dir))) & PAGE_MASK) + pte_index((addr)))
+
+#define pte_offset_map(dir,addr)	pte_offset_kernel(dir, addr)
+#define pte_offset_map_nested(dir,addr)	pte_offset_kernel(dir, addr)
+#define pte_unmap(pte)		do { } while (0)
+#define pte_unmap_nested(pte)	do { } while (0)
+
+#ifndef __ASSEMBLY__
+#define IOBASE_VADDR	0xff000000
+#define IOBASE_END	0xffffffff
+
+/*
+ * PTEL coherent flags.
+ * See Chapter 17 ST50 CPU Core Volume 1, Architecture.
+ */
+/* The bits that are required in the SH-5 TLB are placed in the h/w-defined
+   positions, to avoid expensive bit shuffling on every refill.  The remaining
+   bits are used for s/w purposes and masked out on each refill.
+
+   Note, the PTE slots are used to hold data of type swp_entry_t when a page is
+   swapped out.  Only the _PAGE_PRESENT flag is significant when the page is
+   swapped out, and it must be placed so that it doesn't overlap either the
+   type or offset fields of swp_entry_t.  For x86, offset is at [31:8] and type
+   at [6:1], with _PAGE_PRESENT at bit 0 for both pte_t and swp_entry_t.  This
+   scheme doesn't map to SH-5 because bit [0] controls cacheability.  So bit
+   [2] is used for _PAGE_PRESENT and the type field of swp_entry_t is split
+   into 2 pieces.  That is handled by SWP_ENTRY and SWP_TYPE below. */
+#define _PAGE_WT	0x001  /* CB0: if cacheable, 1->write-thru, 0->write-back */
+#define _PAGE_DEVICE	0x001  /* CB0: if uncacheable, 1->device (i.e. no write-combining or reordering at bus level) */
+#define _PAGE_CACHABLE	0x002  /* CB1: uncachable/cachable */
+#define _PAGE_PRESENT	0x004  /* software: page referenced */
+#define _PAGE_FILE	0x004  /* software: only when !present */
+#define _PAGE_SIZE0	0x008  /* SZ0-bit : size of page */
+#define _PAGE_SIZE1	0x010  /* SZ1-bit : size of page */
+#define _PAGE_SHARED	0x020  /* software: reflects PTEH's SH */
+#define _PAGE_READ	0x040  /* PR0-bit : read access allowed */
+#define _PAGE_EXECUTE	0x080  /* PR1-bit : execute access allowed */
+#define _PAGE_WRITE	0x100  /* PR2-bit : write access allowed */
+#define _PAGE_USER	0x200  /* PR3-bit : user space access allowed */
+#define _PAGE_DIRTY	0x400  /* software: page accessed in write */
+#define _PAGE_ACCESSED	0x800  /* software: page referenced */
+
+/* Mask which drops software flags */
+#define _PAGE_FLAGS_HARDWARE_MASK	0xfffffffffffff3dbLL
+
+/*
+ * HugeTLB support
+ */
+#if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
+#define _PAGE_SZHUGE	(_PAGE_SIZE0)
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_1MB)
+#define _PAGE_SZHUGE	(_PAGE_SIZE1)
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512MB)
+#define _PAGE_SZHUGE	(_PAGE_SIZE0 | _PAGE_SIZE1)
+#endif
+
+/*
+ * Default flags for a Kernel page.
+ * This is fundametally also SHARED because the main use of this define
+ * (other than for PGD/PMD entries) is for the VMALLOC pool which is
+ * contextless.
+ *
+ * _PAGE_EXECUTE is required for modules
+ *
+ */
+#define _KERNPG_TABLE	(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \
+			 _PAGE_EXECUTE | \
+			 _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_DIRTY | \
+			 _PAGE_SHARED)
+
+/* Default flags for a User page */
+#define _PAGE_TABLE	(_KERNPG_TABLE | _PAGE_USER)
+
+#define _PAGE_CHG_MASK	(PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
+
+/*
+ * We have full permissions (Read/Write/Execute/Shared).
+ */
+#define _PAGE_COMMON	(_PAGE_PRESENT | _PAGE_USER | \
+			 _PAGE_CACHABLE | _PAGE_ACCESSED)
+
+#define PAGE_NONE	__pgprot(_PAGE_CACHABLE | _PAGE_ACCESSED)
+#define PAGE_SHARED	__pgprot(_PAGE_COMMON | _PAGE_READ | _PAGE_WRITE | \
+				 _PAGE_SHARED)
+#define PAGE_EXECREAD	__pgprot(_PAGE_COMMON | _PAGE_READ | _PAGE_EXECUTE)
+
+/*
+ * We need to include PAGE_EXECUTE in PAGE_COPY because it is the default
+ * protection mode for the stack.
+ */
+#define PAGE_COPY	PAGE_EXECREAD
+
+#define PAGE_READONLY	__pgprot(_PAGE_COMMON | _PAGE_READ)
+#define PAGE_WRITEONLY	__pgprot(_PAGE_COMMON | _PAGE_WRITE)
+#define PAGE_RWX	__pgprot(_PAGE_COMMON | _PAGE_READ | \
+				 _PAGE_WRITE | _PAGE_EXECUTE)
+#define PAGE_KERNEL	__pgprot(_KERNPG_TABLE)
+
+/* Make it a device mapping for maximum safety (e.g. for mapping device
+   registers into user-space via /dev/map).  */
+#define pgprot_noncached(x) __pgprot(((x).pgprot & ~(_PAGE_CACHABLE)) | _PAGE_DEVICE)
+#define pgprot_writecombine(prot) __pgprot(pgprot_val(prot) & ~_PAGE_CACHABLE)
+
+/*
+ * Handling allocation failures during page table setup.
+ */
+extern void __handle_bad_pmd_kernel(pmd_t * pmd);
+#define __handle_bad_pmd(x)	__handle_bad_pmd_kernel(x)
+
+/*
+ * PTE level access routines.
+ *
+ * Note1:
+ * It's the tree walk leaf. This is physical address to be stored.
+ *
+ * Note 2:
+ * Regarding the choice of _PTE_EMPTY:
+
+   We must choose a bit pattern that cannot be valid, whether or not the page
+   is present.  bit[2]==1 => present, bit[2]==0 => swapped out.  If swapped
+   out, bits [31:8], [6:3], [1:0] are under swapper control, so only bit[7] is
+   left for us to select.  If we force bit[7]==0 when swapped out, we could use
+   the combination bit[7,2]=2'b10 to indicate an empty PTE.  Alternatively, if
+   we force bit[7]==1 when swapped out, we can use all zeroes to indicate
+   empty.  This is convenient, because the page tables get cleared to zero
+   when they are allocated.
+
+ */
+#define _PTE_EMPTY	0x0
+#define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
+#define pte_clear(mm,addr,xp)	(set_pte_at(mm, addr, xp, __pte(_PTE_EMPTY)))
+#define pte_none(x)	(pte_val(x) == _PTE_EMPTY)
+
+/*
+ * Some definitions to translate between mem_map, PTEs, and page
+ * addresses:
+ */
+
+/*
+ * Given a PTE, return the index of the mem_map[] entry corresponding
+ * to the page frame the PTE. Get the absolute physical address, make
+ * a relative physical address and translate it to an index.
+ */
+#define pte_pagenr(x)		(((unsigned long) (pte_val(x)) - \
+				 __MEMORY_START) >> PAGE_SHIFT)
+
+/*
+ * Given a PTE, return the "struct page *".
+ */
+#define pte_page(x)		(mem_map + pte_pagenr(x))
+
+/*
+ * Return number of (down rounded) MB corresponding to x pages.
+ */
+#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
+
+
+/*
+ * The following have defined behavior only work if pte_present() is true.
+ */
+static inline int pte_dirty(pte_t pte){ return pte_val(pte) & _PAGE_DIRTY; }
+static inline int pte_young(pte_t pte){ return pte_val(pte) & _PAGE_ACCESSED; }
+static inline int pte_file(pte_t pte) { return pte_val(pte) & _PAGE_FILE; }
+static inline int pte_write(pte_t pte){ return pte_val(pte) & _PAGE_WRITE; }
+
+static inline pte_t pte_wrprotect(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_WRITE)); return pte; }
+static inline pte_t pte_mkclean(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_DIRTY)); return pte; }
+static inline pte_t pte_mkold(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_ACCESSED)); return pte; }
+static inline pte_t pte_mkwrite(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _PAGE_WRITE)); return pte; }
+static inline pte_t pte_mkdirty(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _PAGE_DIRTY)); return pte; }
+static inline pte_t pte_mkyoung(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _PAGE_ACCESSED)); return pte; }
+static inline pte_t pte_mkhuge(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _PAGE_SZHUGE)); return pte; }
+
+
+/*
+ * Conversion functions: convert a page and protection to a page entry.
+ *
+ * extern pte_t mk_pte(struct page *page, pgprot_t pgprot)
+ */
+#define mk_pte(page,pgprot)							\
+({										\
+	pte_t __pte;								\
+										\
+	set_pte(&__pte, __pte((((page)-mem_map) << PAGE_SHIFT) | 		\
+		__MEMORY_START | pgprot_val((pgprot))));			\
+	__pte;									\
+})
+
+/*
+ * This takes a (absolute) physical page address that is used
+ * by the remapping functions
+ */
+#define mk_pte_phys(physpage, pgprot) \
+({ pte_t __pte; set_pte(&__pte, __pte(physpage | pgprot_val(pgprot))); __pte; })
+
+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{ set_pte(&pte, __pte((pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot))); return pte; }
+
+/* Encode and decode a swap entry */
+#define __swp_type(x)			(((x).val & 3) + (((x).val >> 1) & 0x3c))
+#define __swp_offset(x)			((x).val >> 8)
+#define __swp_entry(type, offset)	((swp_entry_t) { ((offset << 8) + ((type & 0x3c) << 1) + (type & 3)) })
+#define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x)		((pte_t) { (x).val })
+
+/* Encode and decode a nonlinear file mapping entry */
+#define PTE_FILE_MAX_BITS		29
+#define pte_to_pgoff(pte)		(pte_val(pte))
+#define pgoff_to_pte(off)		((pte_t) { (off) | _PAGE_FILE })
+
+#endif /* !__ASSEMBLY__ */
+
+#define pfn_pte(pfn, prot)	__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
+#define pfn_pmd(pfn, prot)	__pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
+
+#endif /* __ASM_SH64_PGTABLE_H */
diff --git a/include/asm-sh64/pgtable.h b/include/asm-sh64/pgtable.h
deleted file mode 100644
index 3488fe32e436..000000000000
--- a/include/asm-sh64/pgtable.h
+++ /dev/null
@@ -1,496 +0,0 @@
-#ifndef __ASM_SH64_PGTABLE_H
-#define __ASM_SH64_PGTABLE_H
-
-#include <asm-generic/4level-fixup.h>
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/pgtable.h
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003, 2004  Paul Mundt
- * Copyright (C) 2003, 2004  Richard Curnow
- *
- * This file contains the functions and defines necessary to modify and use
- * the SuperH page table tree.
- */
-
-#ifndef __ASSEMBLY__
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <linux/threads.h>
-
-struct vm_area_struct;
-
-extern void paging_init(void);
-
-/* We provide our own get_unmapped_area to avoid cache synonym issue */
-#define HAVE_ARCH_UNMAPPED_AREA
-
-/*
- * Basically we have the same two-level (which is the logical three level
- * Linux page table layout folded) page tables as the i386.
- */
-
-/*
- * ZERO_PAGE is a global shared page that is always zero: used
- * for zero-mapped memory areas etc..
- */
-extern unsigned char empty_zero_page[PAGE_SIZE];
-#define ZERO_PAGE(vaddr) (mem_map + MAP_NR(empty_zero_page))
-
-#endif /* !__ASSEMBLY__ */
-
-/*
- * NEFF and NPHYS related defines.
- * FIXME : These need to be model-dependent.  For now this is OK, SH5-101 and SH5-103
- * implement 32 bits effective and 32 bits physical.  But future implementations may
- * extend beyond this.
- */
-#define NEFF		32
-#define	NEFF_SIGN	(1LL << (NEFF - 1))
-#define	NEFF_MASK	(-1LL << NEFF)
-
-#define NPHYS		32
-#define	NPHYS_SIGN	(1LL << (NPHYS - 1))
-#define	NPHYS_MASK	(-1LL << NPHYS)
-
-/* Typically 2-level is sufficient up to 32 bits of virtual address space, beyond
-   that 3-level would be appropriate. */
-#if defined(CONFIG_SH64_PGTABLE_2_LEVEL)
-/* For 4k pages, this contains 512 entries, i.e. 9 bits worth of address. */
-#define PTRS_PER_PTE	((1<<PAGE_SHIFT)/sizeof(unsigned long long))
-#define PTE_MAGNITUDE	3	      /* sizeof(unsigned long long) magnit. */
-#define PTE_SHIFT	PAGE_SHIFT
-#define PTE_BITS	(PAGE_SHIFT - PTE_MAGNITUDE)
-
-/* top level: PMD. */
-#define PGDIR_SHIFT	(PTE_SHIFT + PTE_BITS)
-#define PGD_BITS	(NEFF - PGDIR_SHIFT)
-#define PTRS_PER_PGD	(1<<PGD_BITS)
-
-/* middle level: PMD. This doesn't do anything for the 2-level case. */
-#define PTRS_PER_PMD	(1)
-
-#define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
-#define PGDIR_MASK	(~(PGDIR_SIZE-1))
-#define PMD_SHIFT	PGDIR_SHIFT
-#define PMD_SIZE	PGDIR_SIZE
-#define PMD_MASK	PGDIR_MASK
-
-#elif defined(CONFIG_SH64_PGTABLE_3_LEVEL)
-/*
- * three-level asymmetric paging structure: PGD is top level.
- * The asymmetry comes from 32-bit pointers and 64-bit PTEs.
- */
-/* bottom level: PTE. It's 9 bits = 512 pointers */
-#define PTRS_PER_PTE	((1<<PAGE_SHIFT)/sizeof(unsigned long long))
-#define PTE_MAGNITUDE	3	      /* sizeof(unsigned long long) magnit. */
-#define PTE_SHIFT	PAGE_SHIFT
-#define PTE_BITS	(PAGE_SHIFT - PTE_MAGNITUDE)
-
-/* middle level: PMD. It's 10 bits = 1024 pointers */
-#define PTRS_PER_PMD	((1<<PAGE_SHIFT)/sizeof(unsigned long long *))
-#define PMD_MAGNITUDE	2	      /* sizeof(unsigned long long *) magnit. */
-#define PMD_SHIFT	(PTE_SHIFT + PTE_BITS)
-#define PMD_BITS	(PAGE_SHIFT - PMD_MAGNITUDE)
-
-/* top level: PMD. It's 1 bit = 2 pointers */
-#define PGDIR_SHIFT	(PMD_SHIFT + PMD_BITS)
-#define PGD_BITS	(NEFF - PGDIR_SHIFT)
-#define PTRS_PER_PGD	(1<<PGD_BITS)
-
-#define PMD_SIZE	(1UL << PMD_SHIFT)
-#define PMD_MASK	(~(PMD_SIZE-1))
-#define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
-#define PGDIR_MASK	(~(PGDIR_SIZE-1))
-
-#else
-#error "No defined number of page table levels"
-#endif
-
-/*
- * Error outputs.
- */
-#define pte_ERROR(e) \
-	printk("%s:%d: bad pte %016Lx.\n", __FILE__, __LINE__, pte_val(e))
-#define pmd_ERROR(e) \
-	printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e))
-#define pgd_ERROR(e) \
-	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
-
-/*
- * Table setting routines. Used within arch/mm only.
- */
-#define set_pgd(pgdptr, pgdval) (*(pgdptr) = pgdval)
-#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
-
-static __inline__ void set_pte(pte_t *pteptr, pte_t pteval)
-{
-	unsigned long long x = ((unsigned long long) pteval.pte);
-	unsigned long long *xp = (unsigned long long *) pteptr;
-	/*
-	 * Sign-extend based on NPHYS.
-	 */
-	*(xp) = (x & NPHYS_SIGN) ? (x | NPHYS_MASK) : x;
-}
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
-
-static __inline__ void pmd_set(pmd_t *pmdp,pte_t *ptep)
-{
-	pmd_val(*pmdp) = (unsigned long) ptep;
-}
-
-/*
- * PGD defines. Top level.
- */
-
-/* To find an entry in a generic PGD. */
-#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
-#define __pgd_offset(address) pgd_index(address)
-#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address))
-
-/* To find an entry in a kernel PGD. */
-#define pgd_offset_k(address) pgd_offset(&init_mm, address)
-
-/*
- * PGD level access routines.
- *
- * Note1:
- * There's no need to use physical addresses since the tree walk is all
- * in performed in software, until the PTE translation.
- *
- * Note 2:
- * A PGD entry can be uninitialized (_PGD_UNUSED), generically bad,
- * clear (_PGD_EMPTY), present. When present, lower 3 nibbles contain
- * _KERNPG_TABLE. Being a kernel virtual pointer also bit 31 must
- * be 1. Assuming an arbitrary clear value of bit 31 set to 0 and
- * lower 3 nibbles set to 0xFFF (_PGD_EMPTY) any other value is a
- * bad pgd that must be notified via printk().
- *
- */
-#define _PGD_EMPTY		0x0
-
-#if defined(CONFIG_SH64_PGTABLE_2_LEVEL)
-static inline int pgd_none(pgd_t pgd)		{ return 0; }
-static inline int pgd_bad(pgd_t pgd)		{ return 0; }
-#define pgd_present(pgd) ((pgd_val(pgd) & _PAGE_PRESENT) ? 1 : 0)
-#define pgd_clear(xx)				do { } while(0)
-
-#elif defined(CONFIG_SH64_PGTABLE_3_LEVEL)
-#define pgd_present(pgd_entry)	(1)
-#define pgd_none(pgd_entry)	(pgd_val((pgd_entry)) == _PGD_EMPTY)
-/* TODO: Think later about what a useful definition of 'bad' would be now. */
-#define pgd_bad(pgd_entry)	(0)
-#define pgd_clear(pgd_entry_p)	(set_pgd((pgd_entry_p), __pgd(_PGD_EMPTY)))
-
-#endif
-
-
-#define pgd_page_vaddr(pgd_entry)	((unsigned long) (pgd_val(pgd_entry) & PAGE_MASK))
-#define pgd_page(pgd)	(virt_to_page(pgd_val(pgd)))
-
-
-/*
- * PMD defines. Middle level.
- */
-
-/* PGD to PMD dereferencing */
-#if defined(CONFIG_SH64_PGTABLE_2_LEVEL)
-static inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address)
-{
-	return (pmd_t *) dir;
-}
-#elif defined(CONFIG_SH64_PGTABLE_3_LEVEL)
-#define __pmd_offset(address) \
-		(((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
-#define pmd_offset(dir, addr) \
-		((pmd_t *) ((pgd_val(*(dir))) & PAGE_MASK) + __pmd_offset((addr)))
-#endif
-
-/*
- * PMD level access routines. Same notes as above.
- */
-#define _PMD_EMPTY		0x0
-/* Either the PMD is empty or present, it's not paged out */
-#define pmd_present(pmd_entry)	(pmd_val(pmd_entry) & _PAGE_PRESENT)
-#define pmd_clear(pmd_entry_p)	(set_pmd((pmd_entry_p), __pmd(_PMD_EMPTY)))
-#define pmd_none(pmd_entry)	(pmd_val((pmd_entry)) == _PMD_EMPTY)
-#define pmd_bad(pmd_entry)	((pmd_val(pmd_entry) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
-
-#define pmd_page_vaddr(pmd_entry) \
-	((unsigned long) __va(pmd_val(pmd_entry) & PAGE_MASK))
-
-#define pmd_page(pmd) \
-	(virt_to_page(pmd_val(pmd)))
-
-/* PMD to PTE dereferencing */
-#define pte_index(address) \
-		((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
-
-#define pte_offset_kernel(dir, addr) \
-		((pte_t *) ((pmd_val(*(dir))) & PAGE_MASK) + pte_index((addr)))
-
-#define pte_offset_map(dir,addr)	pte_offset_kernel(dir, addr)
-#define pte_offset_map_nested(dir,addr)	pte_offset_kernel(dir, addr)
-#define pte_unmap(pte)		do { } while (0)
-#define pte_unmap_nested(pte)	do { } while (0)
-
-/* Round it up ! */
-#define USER_PTRS_PER_PGD	((TASK_SIZE+PGDIR_SIZE-1)/PGDIR_SIZE)
-#define FIRST_USER_ADDRESS	0
-
-#ifndef __ASSEMBLY__
-#define VMALLOC_END	0xff000000
-#define VMALLOC_START	0xf0000000
-#define VMALLOC_VMADDR(x) ((unsigned long)(x))
-
-#define IOBASE_VADDR	0xff000000
-#define IOBASE_END	0xffffffff
-
-/*
- * PTEL coherent flags.
- * See Chapter 17 ST50 CPU Core Volume 1, Architecture.
- */
-/* The bits that are required in the SH-5 TLB are placed in the h/w-defined
-   positions, to avoid expensive bit shuffling on every refill.  The remaining
-   bits are used for s/w purposes and masked out on each refill.
-
-   Note, the PTE slots are used to hold data of type swp_entry_t when a page is
-   swapped out.  Only the _PAGE_PRESENT flag is significant when the page is
-   swapped out, and it must be placed so that it doesn't overlap either the
-   type or offset fields of swp_entry_t.  For x86, offset is at [31:8] and type
-   at [6:1], with _PAGE_PRESENT at bit 0 for both pte_t and swp_entry_t.  This
-   scheme doesn't map to SH-5 because bit [0] controls cacheability.  So bit
-   [2] is used for _PAGE_PRESENT and the type field of swp_entry_t is split
-   into 2 pieces.  That is handled by SWP_ENTRY and SWP_TYPE below. */
-#define _PAGE_WT	0x001  /* CB0: if cacheable, 1->write-thru, 0->write-back */
-#define _PAGE_DEVICE	0x001  /* CB0: if uncacheable, 1->device (i.e. no write-combining or reordering at bus level) */
-#define _PAGE_CACHABLE	0x002  /* CB1: uncachable/cachable */
-#define _PAGE_PRESENT	0x004  /* software: page referenced */
-#define _PAGE_FILE	0x004  /* software: only when !present */
-#define _PAGE_SIZE0	0x008  /* SZ0-bit : size of page */
-#define _PAGE_SIZE1	0x010  /* SZ1-bit : size of page */
-#define _PAGE_SHARED	0x020  /* software: reflects PTEH's SH */
-#define _PAGE_READ	0x040  /* PR0-bit : read access allowed */
-#define _PAGE_EXECUTE	0x080  /* PR1-bit : execute access allowed */
-#define _PAGE_WRITE	0x100  /* PR2-bit : write access allowed */
-#define _PAGE_USER	0x200  /* PR3-bit : user space access allowed */
-#define _PAGE_DIRTY	0x400  /* software: page accessed in write */
-#define _PAGE_ACCESSED	0x800  /* software: page referenced */
-
-/* Mask which drops software flags */
-#define _PAGE_FLAGS_HARDWARE_MASK	0xfffffffffffff3dbLL
-
-/*
- * HugeTLB support
- */
-#if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
-#define _PAGE_SZHUGE	(_PAGE_SIZE0)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_1MB)
-#define _PAGE_SZHUGE	(_PAGE_SIZE1)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512MB)
-#define _PAGE_SZHUGE	(_PAGE_SIZE0 | _PAGE_SIZE1)
-#endif
-
-/*
- * Default flags for a Kernel page.
- * This is fundametally also SHARED because the main use of this define
- * (other than for PGD/PMD entries) is for the VMALLOC pool which is
- * contextless.
- *
- * _PAGE_EXECUTE is required for modules
- *
- */
-#define _KERNPG_TABLE	(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \
-			 _PAGE_EXECUTE | \
-			 _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_DIRTY | \
-			 _PAGE_SHARED)
-
-/* Default flags for a User page */
-#define _PAGE_TABLE	(_KERNPG_TABLE | _PAGE_USER)
-
-#define _PAGE_CHG_MASK	(PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
-
-#define PAGE_NONE	__pgprot(_PAGE_CACHABLE | _PAGE_ACCESSED)
-#define PAGE_SHARED	__pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \
-				 _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_USER | \
-				 _PAGE_SHARED)
-/* We need to include PAGE_EXECUTE in PAGE_COPY because it is the default
- * protection mode for the stack. */
-#define PAGE_COPY	__pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_CACHABLE | \
-				 _PAGE_ACCESSED | _PAGE_USER | _PAGE_EXECUTE)
-#define PAGE_READONLY	__pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_CACHABLE | \
-				 _PAGE_ACCESSED | _PAGE_USER)
-#define PAGE_KERNEL	__pgprot(_KERNPG_TABLE)
-
-
-/*
- * In ST50 we have full permissions (Read/Write/Execute/Shared).
- * Just match'em all. These are for mmap(), therefore all at least
- * User/Cachable/Present/Accessed. No point in making Fault on Write.
- */
-#define __MMAP_COMMON	(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | _PAGE_ACCESSED)
-       /* sxwr */
-#define __P000	__pgprot(__MMAP_COMMON)
-#define __P001	__pgprot(__MMAP_COMMON | _PAGE_READ)
-#define __P010	__pgprot(__MMAP_COMMON)
-#define __P011	__pgprot(__MMAP_COMMON | _PAGE_READ)
-#define __P100	__pgprot(__MMAP_COMMON | _PAGE_EXECUTE)
-#define __P101	__pgprot(__MMAP_COMMON | _PAGE_EXECUTE | _PAGE_READ)
-#define __P110	__pgprot(__MMAP_COMMON | _PAGE_EXECUTE)
-#define __P111	__pgprot(__MMAP_COMMON | _PAGE_EXECUTE | _PAGE_READ)
-
-#define __S000	__pgprot(__MMAP_COMMON | _PAGE_SHARED)
-#define __S001	__pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_READ)
-#define __S010	__pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_WRITE)
-#define __S011	__pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_READ | _PAGE_WRITE)
-#define __S100	__pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_EXECUTE)
-#define __S101	__pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_EXECUTE | _PAGE_READ)
-#define __S110	__pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_EXECUTE | _PAGE_WRITE)
-#define __S111	__pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_EXECUTE | _PAGE_READ | _PAGE_WRITE)
-
-/* Make it a device mapping for maximum safety (e.g. for mapping device
-   registers into user-space via /dev/map).  */
-#define pgprot_noncached(x) __pgprot(((x).pgprot & ~(_PAGE_CACHABLE)) | _PAGE_DEVICE)
-#define pgprot_writecombine(prot) __pgprot(pgprot_val(prot) & ~_PAGE_CACHABLE)
-
-/*
- * Handling allocation failures during page table setup.
- */
-extern void __handle_bad_pmd_kernel(pmd_t * pmd);
-#define __handle_bad_pmd(x)	__handle_bad_pmd_kernel(x)
-
-/*
- * PTE level access routines.
- *
- * Note1:
- * It's the tree walk leaf. This is physical address to be stored.
- *
- * Note 2:
- * Regarding the choice of _PTE_EMPTY:
-
-   We must choose a bit pattern that cannot be valid, whether or not the page
-   is present.  bit[2]==1 => present, bit[2]==0 => swapped out.  If swapped
-   out, bits [31:8], [6:3], [1:0] are under swapper control, so only bit[7] is
-   left for us to select.  If we force bit[7]==0 when swapped out, we could use
-   the combination bit[7,2]=2'b10 to indicate an empty PTE.  Alternatively, if
-   we force bit[7]==1 when swapped out, we can use all zeroes to indicate
-   empty.  This is convenient, because the page tables get cleared to zero
-   when they are allocated.
-
- */
-#define _PTE_EMPTY	0x0
-#define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
-#define pte_clear(mm,addr,xp)	(set_pte_at(mm, addr, xp, __pte(_PTE_EMPTY)))
-#define pte_none(x)	(pte_val(x) == _PTE_EMPTY)
-
-/*
- * Some definitions to translate between mem_map, PTEs, and page
- * addresses:
- */
-
-/*
- * Given a PTE, return the index of the mem_map[] entry corresponding
- * to the page frame the PTE. Get the absolute physical address, make
- * a relative physical address and translate it to an index.
- */
-#define pte_pagenr(x)		(((unsigned long) (pte_val(x)) - \
-				 __MEMORY_START) >> PAGE_SHIFT)
-
-/*
- * Given a PTE, return the "struct page *".
- */
-#define pte_page(x)		(mem_map + pte_pagenr(x))
-
-/*
- * Return number of (down rounded) MB corresponding to x pages.
- */
-#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
-
-
-/*
- * The following have defined behavior only work if pte_present() is true.
- */
-static inline int pte_dirty(pte_t pte){ return pte_val(pte) & _PAGE_DIRTY; }
-static inline int pte_young(pte_t pte){ return pte_val(pte) & _PAGE_ACCESSED; }
-static inline int pte_file(pte_t pte) { return pte_val(pte) & _PAGE_FILE; }
-static inline int pte_write(pte_t pte){ return pte_val(pte) & _PAGE_WRITE; }
-
-static inline pte_t pte_wrprotect(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_WRITE)); return pte; }
-static inline pte_t pte_mkclean(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_DIRTY)); return pte; }
-static inline pte_t pte_mkold(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_ACCESSED)); return pte; }
-static inline pte_t pte_mkwrite(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _PAGE_WRITE)); return pte; }
-static inline pte_t pte_mkdirty(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _PAGE_DIRTY)); return pte; }
-static inline pte_t pte_mkyoung(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _PAGE_ACCESSED)); return pte; }
-static inline pte_t pte_mkhuge(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _PAGE_SZHUGE)); return pte; }
-
-
-/*
- * Conversion functions: convert a page and protection to a page entry.
- *
- * extern pte_t mk_pte(struct page *page, pgprot_t pgprot)
- */
-#define mk_pte(page,pgprot)							\
-({										\
-	pte_t __pte;								\
-										\
-	set_pte(&__pte, __pte((((page)-mem_map) << PAGE_SHIFT) | 		\
-		__MEMORY_START | pgprot_val((pgprot))));			\
-	__pte;									\
-})
-
-/*
- * This takes a (absolute) physical page address that is used
- * by the remapping functions
- */
-#define mk_pte_phys(physpage, pgprot) \
-({ pte_t __pte; set_pte(&__pte, __pte(physpage | pgprot_val(pgprot))); __pte; })
-
-static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
-{ set_pte(&pte, __pte((pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot))); return pte; }
-
-typedef pte_t *pte_addr_t;
-#define pgtable_cache_init()	do { } while (0)
-
-extern void update_mmu_cache(struct vm_area_struct * vma,
-			     unsigned long address, pte_t pte);
-
-/* Encode and decode a swap entry */
-#define __swp_type(x)			(((x).val & 3) + (((x).val >> 1) & 0x3c))
-#define __swp_offset(x)			((x).val >> 8)
-#define __swp_entry(type, offset)	((swp_entry_t) { ((offset << 8) + ((type & 0x3c) << 1) + (type & 3)) })
-#define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) })
-#define __swp_entry_to_pte(x)		((pte_t) { (x).val })
-
-/* Encode and decode a nonlinear file mapping entry */
-#define PTE_FILE_MAX_BITS		29
-#define pte_to_pgoff(pte)		(pte_val(pte))
-#define pgoff_to_pte(off)		((pte_t) { (off) | _PAGE_FILE })
-
-/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
-#define PageSkip(page)		(0)
-#define kern_addr_valid(addr)	(1)
-
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
-#endif /* !__ASSEMBLY__ */
-
-/*
- * No page table caches to initialise
- */
-#define pgtable_cache_init()    do { } while (0)
-
-#define pte_pfn(x)		(((unsigned long)((x).pte)) >> PAGE_SHIFT)
-#define pfn_pte(pfn, prot)	__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
-#define pfn_pmd(pfn, prot)	__pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
-
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-
-#include <asm-generic/pgtable.h>
-
-#endif /* __ASM_SH64_PGTABLE_H */
-- 
cgit v1.2.3-59-g8ed1b


From 3eeffb32049d4b43b01211a79496cfdaac0c33ad Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 19 Nov 2007 18:57:03 +0900
Subject: sh: Split out tlb-flush in to _32 and _64 variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/Makefile_32    |   2 +-
 arch/sh/mm/Makefile_64    |   2 +-
 arch/sh/mm/tlb-flush.c    | 140 -----------
 arch/sh/mm/tlb-flush_32.c | 140 +++++++++++
 arch/sh/mm/tlb-flush_64.c | 475 ++++++++++++++++++++++++++++++++++++
 arch/sh64/mm/fault.c      | 602 ----------------------------------------------
 6 files changed, 617 insertions(+), 744 deletions(-)
 delete mode 100644 arch/sh/mm/tlb-flush.c
 create mode 100644 arch/sh/mm/tlb-flush_32.c
 create mode 100644 arch/sh/mm/tlb-flush_64.c
 delete mode 100644 arch/sh64/mm/fault.c

(limited to 'arch')

diff --git a/arch/sh/mm/Makefile_32 b/arch/sh/mm/Makefile_32
index b43884269c2a..9ea379303742 100644
--- a/arch/sh/mm/Makefile_32
+++ b/arch/sh/mm/Makefile_32
@@ -12,7 +12,7 @@ obj-$(CONFIG_SH7705_CACHE_32KB)	+= cache-sh7705.o
 endif
 
 mmu-y			:= tlb-nommu.o pg-nommu.o
-mmu-$(CONFIG_MMU)	:= fault.o clear_page.o copy_page.o tlb-flush.o	\
+mmu-$(CONFIG_MMU)	:= fault.o clear_page.o copy_page.o tlb-flush_32.o \
 			   ioremap_32.o
 
 obj-y			+= $(mmu-y)
diff --git a/arch/sh/mm/Makefile_64 b/arch/sh/mm/Makefile_64
index 177f92863e4e..ec8deaa17909 100644
--- a/arch/sh/mm/Makefile_64
+++ b/arch/sh/mm/Makefile_64
@@ -5,7 +5,7 @@
 obj-y			:= init.o extable_64.o consistent.o
 
 mmu-y			:= tlb-nommu.o pg-nommu.o
-mmu-$(CONFIG_MMU)	:= ioremap_64.o
+mmu-$(CONFIG_MMU)	:= ioremap_64.o tlb-flush_64.o
 
 obj-y			+= $(mmu-y)
 
diff --git a/arch/sh/mm/tlb-flush.c b/arch/sh/mm/tlb-flush.c
deleted file mode 100644
index 6f45c1f8a7fe..000000000000
--- a/arch/sh/mm/tlb-flush.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * TLB flushing operations for SH with an MMU.
- *
- *  Copyright (C) 1999  Niibe Yutaka
- *  Copyright (C) 2003  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/mm.h>
-#include <asm/mmu_context.h>
-#include <asm/tlbflush.h>
-
-void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
-	unsigned int cpu = smp_processor_id();
-
-	if (vma->vm_mm && cpu_context(cpu, vma->vm_mm) != NO_CONTEXT) {
-		unsigned long flags;
-		unsigned long asid;
-		unsigned long saved_asid = MMU_NO_ASID;
-
-		asid = cpu_asid(cpu, vma->vm_mm);
-		page &= PAGE_MASK;
-
-		local_irq_save(flags);
-		if (vma->vm_mm != current->mm) {
-			saved_asid = get_asid();
-			set_asid(asid);
-		}
-		local_flush_tlb_one(asid, page);
-		if (saved_asid != MMU_NO_ASID)
-			set_asid(saved_asid);
-		local_irq_restore(flags);
-	}
-}
-
-void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
-			   unsigned long end)
-{
-	struct mm_struct *mm = vma->vm_mm;
-	unsigned int cpu = smp_processor_id();
-
-	if (cpu_context(cpu, mm) != NO_CONTEXT) {
-		unsigned long flags;
-		int size;
-
-		local_irq_save(flags);
-		size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
-		if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */
-			cpu_context(cpu, mm) = NO_CONTEXT;
-			if (mm == current->mm)
-				activate_context(mm, cpu);
-		} else {
-			unsigned long asid;
-			unsigned long saved_asid = MMU_NO_ASID;
-
-			asid = cpu_asid(cpu, mm);
-			start &= PAGE_MASK;
-			end += (PAGE_SIZE - 1);
-			end &= PAGE_MASK;
-			if (mm != current->mm) {
-				saved_asid = get_asid();
-				set_asid(asid);
-			}
-			while (start < end) {
-				local_flush_tlb_one(asid, start);
-				start += PAGE_SIZE;
-			}
-			if (saved_asid != MMU_NO_ASID)
-				set_asid(saved_asid);
-		}
-		local_irq_restore(flags);
-	}
-}
-
-void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
-	unsigned int cpu = smp_processor_id();
-	unsigned long flags;
-	int size;
-
-	local_irq_save(flags);
-	size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
-	if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */
-		local_flush_tlb_all();
-	} else {
-		unsigned long asid;
-		unsigned long saved_asid = get_asid();
-
-		asid = cpu_asid(cpu, &init_mm);
-		start &= PAGE_MASK;
-		end += (PAGE_SIZE - 1);
-		end &= PAGE_MASK;
-		set_asid(asid);
-		while (start < end) {
-			local_flush_tlb_one(asid, start);
-			start += PAGE_SIZE;
-		}
-		set_asid(saved_asid);
-	}
-	local_irq_restore(flags);
-}
-
-void local_flush_tlb_mm(struct mm_struct *mm)
-{
-	unsigned int cpu = smp_processor_id();
-
-	/* Invalidate all TLB of this process. */
-	/* Instead of invalidating each TLB, we get new MMU context. */
-	if (cpu_context(cpu, mm) != NO_CONTEXT) {
-		unsigned long flags;
-
-		local_irq_save(flags);
-		cpu_context(cpu, mm) = NO_CONTEXT;
-		if (mm == current->mm)
-			activate_context(mm, cpu);
-		local_irq_restore(flags);
-	}
-}
-
-void local_flush_tlb_all(void)
-{
-	unsigned long flags, status;
-
-	/*
-	 * Flush all the TLB.
-	 *
-	 * Write to the MMU control register's bit:
-	 *	TF-bit for SH-3, TI-bit for SH-4.
-	 *      It's same position, bit #2.
-	 */
-	local_irq_save(flags);
-	status = ctrl_inl(MMUCR);
-	status |= 0x04;
-	ctrl_outl(status, MMUCR);
-	ctrl_barrier();
-	local_irq_restore(flags);
-}
diff --git a/arch/sh/mm/tlb-flush_32.c b/arch/sh/mm/tlb-flush_32.c
new file mode 100644
index 000000000000..6f45c1f8a7fe
--- /dev/null
+++ b/arch/sh/mm/tlb-flush_32.c
@@ -0,0 +1,140 @@
+/*
+ * TLB flushing operations for SH with an MMU.
+ *
+ *  Copyright (C) 1999  Niibe Yutaka
+ *  Copyright (C) 2003  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/mm.h>
+#include <asm/mmu_context.h>
+#include <asm/tlbflush.h>
+
+void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
+{
+	unsigned int cpu = smp_processor_id();
+
+	if (vma->vm_mm && cpu_context(cpu, vma->vm_mm) != NO_CONTEXT) {
+		unsigned long flags;
+		unsigned long asid;
+		unsigned long saved_asid = MMU_NO_ASID;
+
+		asid = cpu_asid(cpu, vma->vm_mm);
+		page &= PAGE_MASK;
+
+		local_irq_save(flags);
+		if (vma->vm_mm != current->mm) {
+			saved_asid = get_asid();
+			set_asid(asid);
+		}
+		local_flush_tlb_one(asid, page);
+		if (saved_asid != MMU_NO_ASID)
+			set_asid(saved_asid);
+		local_irq_restore(flags);
+	}
+}
+
+void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+			   unsigned long end)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	unsigned int cpu = smp_processor_id();
+
+	if (cpu_context(cpu, mm) != NO_CONTEXT) {
+		unsigned long flags;
+		int size;
+
+		local_irq_save(flags);
+		size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
+		if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */
+			cpu_context(cpu, mm) = NO_CONTEXT;
+			if (mm == current->mm)
+				activate_context(mm, cpu);
+		} else {
+			unsigned long asid;
+			unsigned long saved_asid = MMU_NO_ASID;
+
+			asid = cpu_asid(cpu, mm);
+			start &= PAGE_MASK;
+			end += (PAGE_SIZE - 1);
+			end &= PAGE_MASK;
+			if (mm != current->mm) {
+				saved_asid = get_asid();
+				set_asid(asid);
+			}
+			while (start < end) {
+				local_flush_tlb_one(asid, start);
+				start += PAGE_SIZE;
+			}
+			if (saved_asid != MMU_NO_ASID)
+				set_asid(saved_asid);
+		}
+		local_irq_restore(flags);
+	}
+}
+
+void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+	unsigned int cpu = smp_processor_id();
+	unsigned long flags;
+	int size;
+
+	local_irq_save(flags);
+	size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
+	if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */
+		local_flush_tlb_all();
+	} else {
+		unsigned long asid;
+		unsigned long saved_asid = get_asid();
+
+		asid = cpu_asid(cpu, &init_mm);
+		start &= PAGE_MASK;
+		end += (PAGE_SIZE - 1);
+		end &= PAGE_MASK;
+		set_asid(asid);
+		while (start < end) {
+			local_flush_tlb_one(asid, start);
+			start += PAGE_SIZE;
+		}
+		set_asid(saved_asid);
+	}
+	local_irq_restore(flags);
+}
+
+void local_flush_tlb_mm(struct mm_struct *mm)
+{
+	unsigned int cpu = smp_processor_id();
+
+	/* Invalidate all TLB of this process. */
+	/* Instead of invalidating each TLB, we get new MMU context. */
+	if (cpu_context(cpu, mm) != NO_CONTEXT) {
+		unsigned long flags;
+
+		local_irq_save(flags);
+		cpu_context(cpu, mm) = NO_CONTEXT;
+		if (mm == current->mm)
+			activate_context(mm, cpu);
+		local_irq_restore(flags);
+	}
+}
+
+void local_flush_tlb_all(void)
+{
+	unsigned long flags, status;
+
+	/*
+	 * Flush all the TLB.
+	 *
+	 * Write to the MMU control register's bit:
+	 *	TF-bit for SH-3, TI-bit for SH-4.
+	 *      It's same position, bit #2.
+	 */
+	local_irq_save(flags);
+	status = ctrl_inl(MMUCR);
+	status |= 0x04;
+	ctrl_outl(status, MMUCR);
+	ctrl_barrier();
+	local_irq_restore(flags);
+}
diff --git a/arch/sh/mm/tlb-flush_64.c b/arch/sh/mm/tlb-flush_64.c
new file mode 100644
index 000000000000..2a98c9ec88ff
--- /dev/null
+++ b/arch/sh/mm/tlb-flush_64.c
@@ -0,0 +1,475 @@
+/*
+ * arch/sh/mm/tlb-flush_64.c
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003  Richard Curnow (/proc/tlb, bug fixes)
+ * Copyright (C) 2003  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/signal.h>
+#include <linux/rwsem.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/tlb.h>
+#include <asm/uaccess.h>
+#include <asm/pgalloc.h>
+#include <asm/mmu_context.h>
+
+extern void die(const char *,struct pt_regs *,long);
+
+#define PFLAG(val,flag)   (( (val) & (flag) ) ? #flag : "" )
+#define PPROT(flag) PFLAG(pgprot_val(prot),flag)
+
+static inline void print_prots(pgprot_t prot)
+{
+	printk("prot is 0x%08lx\n",pgprot_val(prot));
+
+	printk("%s %s %s %s %s\n",PPROT(_PAGE_SHARED),PPROT(_PAGE_READ),
+	       PPROT(_PAGE_EXECUTE),PPROT(_PAGE_WRITE),PPROT(_PAGE_USER));
+}
+
+static inline void print_vma(struct vm_area_struct *vma)
+{
+	printk("vma start 0x%08lx\n", vma->vm_start);
+	printk("vma end   0x%08lx\n", vma->vm_end);
+
+	print_prots(vma->vm_page_prot);
+	printk("vm_flags 0x%08lx\n", vma->vm_flags);
+}
+
+static inline void print_task(struct task_struct *tsk)
+{
+	printk("Task pid %d\n", task_pid_nr(tsk));
+}
+
+static pte_t *lookup_pte(struct mm_struct *mm, unsigned long address)
+{
+	pgd_t *dir;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte;
+	pte_t entry;
+
+	dir = pgd_offset(mm, address);
+	if (pgd_none(*dir))
+		return NULL;
+
+	pud = pud_offset(dir, address);
+	if (pud_none(*pud))
+		return NULL;
+
+	pmd = pmd_offset(pud, address);
+	if (pmd_none(*pmd))
+		return NULL;
+
+	pte = pte_offset_kernel(pmd, address);
+	entry = *pte;
+	if (pte_none(entry) || !pte_present(entry))
+		return NULL;
+
+	return pte;
+}
+
+/*
+ * This routine handles page faults.  It determines the address,
+ * and the problem, and then passes it off to one of the appropriate
+ * routines.
+ */
+asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
+			      unsigned long textaccess, unsigned long address)
+{
+	struct task_struct *tsk;
+	struct mm_struct *mm;
+	struct vm_area_struct * vma;
+	const struct exception_table_entry *fixup;
+	pte_t *pte;
+	int fault;
+
+	/* SIM
+	 * Note this is now called with interrupts still disabled
+	 * This is to cope with being called for a missing IO port
+	 * address with interrupts disabled. This should be fixed as
+	 * soon as we have a better 'fast path' miss handler.
+	 *
+	 * Plus take care how you try and debug this stuff.
+	 * For example, writing debug data to a port which you
+	 * have just faulted on is not going to work.
+	 */
+
+	tsk = current;
+	mm = tsk->mm;
+
+	/* Not an IO address, so reenable interrupts */
+	local_irq_enable();
+
+	/*
+	 * If we're in an interrupt or have no user
+	 * context, we must not take the fault..
+	 */
+	if (in_atomic() || !mm)
+		goto no_context;
+
+	/* TLB misses upon some cache flushes get done under cli() */
+	down_read(&mm->mmap_sem);
+
+	vma = find_vma(mm, address);
+
+	if (!vma) {
+#ifdef DEBUG_FAULT
+		print_task(tsk);
+		printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
+		       __FUNCTION__,__LINE__,
+		       address,regs->pc,textaccess,writeaccess);
+		show_regs(regs);
+#endif
+		goto bad_area;
+	}
+	if (vma->vm_start <= address) {
+		goto good_area;
+	}
+
+	if (!(vma->vm_flags & VM_GROWSDOWN)) {
+#ifdef DEBUG_FAULT
+		print_task(tsk);
+		printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
+		       __FUNCTION__,__LINE__,
+		       address,regs->pc,textaccess,writeaccess);
+		show_regs(regs);
+
+		print_vma(vma);
+#endif
+		goto bad_area;
+	}
+	if (expand_stack(vma, address)) {
+#ifdef DEBUG_FAULT
+		print_task(tsk);
+		printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
+		       __FUNCTION__,__LINE__,
+		       address,regs->pc,textaccess,writeaccess);
+		show_regs(regs);
+#endif
+		goto bad_area;
+	}
+/*
+ * Ok, we have a good vm_area for this memory access, so
+ * we can handle it..
+ */
+good_area:
+	if (textaccess) {
+		if (!(vma->vm_flags & VM_EXEC))
+			goto bad_area;
+	} else {
+		if (writeaccess) {
+			if (!(vma->vm_flags & VM_WRITE))
+				goto bad_area;
+		} else {
+			if (!(vma->vm_flags & VM_READ))
+				goto bad_area;
+		}
+	}
+
+	/*
+	 * If for any reason at all we couldn't handle the fault,
+	 * make sure we exit gracefully rather than endlessly redo
+	 * the fault.
+	 */
+survive:
+	fault = handle_mm_fault(mm, vma, address, writeaccess);
+	if (unlikely(fault & VM_FAULT_ERROR)) {
+		if (fault & VM_FAULT_OOM)
+			goto out_of_memory;
+		else if (fault & VM_FAULT_SIGBUS)
+			goto do_sigbus;
+		BUG();
+	}
+	if (fault & VM_FAULT_MAJOR)
+		tsk->maj_flt++;
+	else
+		tsk->min_flt++;
+
+	/* If we get here, the page fault has been handled.  Do the TLB refill
+	   now from the newly-setup PTE, to avoid having to fault again right
+	   away on the same instruction. */
+	pte = lookup_pte (mm, address);
+	if (!pte) {
+		/* From empirical evidence, we can get here, due to
+		   !pte_present(pte).  (e.g. if a swap-in occurs, and the page
+		   is swapped back out again before the process that wanted it
+		   gets rescheduled?) */
+		goto no_pte;
+	}
+
+	__do_tlb_refill(address, textaccess, pte);
+
+no_pte:
+
+	up_read(&mm->mmap_sem);
+	return;
+
+/*
+ * Something tried to access memory that isn't in our memory map..
+ * Fix it, but check if it's kernel or user first..
+ */
+bad_area:
+#ifdef DEBUG_FAULT
+	printk("fault:bad area\n");
+#endif
+	up_read(&mm->mmap_sem);
+
+	if (user_mode(regs)) {
+		static int count=0;
+		siginfo_t info;
+		if (count < 4) {
+			/* This is really to help debug faults when starting
+			 * usermode, so only need a few */
+			count++;
+			printk("user mode bad_area address=%08lx pid=%d (%s) pc=%08lx\n",
+				address, task_pid_nr(current), current->comm,
+				(unsigned long) regs->pc);
+#if 0
+			show_regs(regs);
+#endif
+		}
+		if (is_global_init(tsk)) {
+			panic("INIT had user mode bad_area\n");
+		}
+		tsk->thread.address = address;
+		tsk->thread.error_code = writeaccess;
+		info.si_signo = SIGSEGV;
+		info.si_errno = 0;
+		info.si_addr = (void *) address;
+		force_sig_info(SIGSEGV, &info, tsk);
+		return;
+	}
+
+no_context:
+#ifdef DEBUG_FAULT
+	printk("fault:No context\n");
+#endif
+	/* Are we prepared to handle this kernel fault?  */
+	fixup = search_exception_tables(regs->pc);
+	if (fixup) {
+		regs->pc = fixup->fixup;
+		return;
+	}
+
+/*
+ * Oops. The kernel tried to access some bad page. We'll have to
+ * terminate things with extreme prejudice.
+ *
+ */
+	if (address < PAGE_SIZE)
+		printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
+	else
+		printk(KERN_ALERT "Unable to handle kernel paging request");
+	printk(" at virtual address %08lx\n", address);
+	printk(KERN_ALERT "pc = %08Lx%08Lx\n", regs->pc >> 32, regs->pc & 0xffffffff);
+	die("Oops", regs, writeaccess);
+	do_exit(SIGKILL);
+
+/*
+ * We ran out of memory, or some other thing happened to us that made
+ * us unable to handle the page fault gracefully.
+ */
+out_of_memory:
+	if (is_global_init(current)) {
+		panic("INIT out of memory\n");
+		yield();
+		goto survive;
+	}
+	printk("fault:Out of memory\n");
+	up_read(&mm->mmap_sem);
+	if (is_global_init(current)) {
+		yield();
+		down_read(&mm->mmap_sem);
+		goto survive;
+	}
+	printk("VM: killing process %s\n", tsk->comm);
+	if (user_mode(regs))
+		do_group_exit(SIGKILL);
+	goto no_context;
+
+do_sigbus:
+	printk("fault:Do sigbus\n");
+	up_read(&mm->mmap_sem);
+
+	/*
+	 * Send a sigbus, regardless of whether we were in kernel
+	 * or user mode.
+	 */
+	tsk->thread.address = address;
+	tsk->thread.error_code = writeaccess;
+	tsk->thread.trap_no = 14;
+	force_sig(SIGBUS, tsk);
+
+	/* Kernel mode? Handle exceptions or die */
+	if (!user_mode(regs))
+		goto no_context;
+}
+
+void update_mmu_cache(struct vm_area_struct * vma,
+			unsigned long address, pte_t pte)
+{
+	/*
+	 * This appears to get called once for every pte entry that gets
+	 * established => I don't think it's efficient to try refilling the
+	 * TLBs with the pages - some may not get accessed even.  Also, for
+	 * executable pages, it is impossible to determine reliably here which
+	 * TLB they should be mapped into (or both even).
+	 *
+	 * So, just do nothing here and handle faults on demand.  In the
+	 * TLBMISS handling case, the refill is now done anyway after the pte
+	 * has been fixed up, so that deals with most useful cases.
+	 */
+}
+
+void local_flush_tlb_one(unsigned long asid, unsigned long page)
+{
+	unsigned long long match, pteh=0, lpage;
+	unsigned long tlb;
+
+	/*
+	 * Sign-extend based on neff.
+	 */
+	lpage = (page & NEFF_SIGN) ? (page | NEFF_MASK) : page;
+	match = (asid << PTEH_ASID_SHIFT) | PTEH_VALID;
+	match |= lpage;
+
+	for_each_itlb_entry(tlb) {
+		asm volatile ("getcfg	%1, 0, %0"
+			      : "=r" (pteh)
+			      : "r" (tlb) );
+
+		if (pteh == match) {
+			__flush_tlb_slot(tlb);
+			break;
+		}
+	}
+
+	for_each_dtlb_entry(tlb) {
+		asm volatile ("getcfg	%1, 0, %0"
+			      : "=r" (pteh)
+			      : "r" (tlb) );
+
+		if (pteh == match) {
+			__flush_tlb_slot(tlb);
+			break;
+		}
+
+	}
+}
+
+void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
+{
+	unsigned long flags;
+
+	if (vma->vm_mm) {
+		page &= PAGE_MASK;
+		local_irq_save(flags);
+		local_flush_tlb_one(get_asid(), page);
+		local_irq_restore(flags);
+	}
+}
+
+void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+			   unsigned long end)
+{
+	unsigned long flags;
+	unsigned long long match, pteh=0, pteh_epn, pteh_low;
+	unsigned long tlb;
+	unsigned int cpu = smp_processor_id();
+	struct mm_struct *mm;
+
+	mm = vma->vm_mm;
+	if (cpu_context(cpu, mm) == NO_CONTEXT)
+		return;
+
+	local_irq_save(flags);
+
+	start &= PAGE_MASK;
+	end &= PAGE_MASK;
+
+	match = (cpu_asid(cpu, mm) << PTEH_ASID_SHIFT) | PTEH_VALID;
+
+	/* Flush ITLB */
+	for_each_itlb_entry(tlb) {
+		asm volatile ("getcfg	%1, 0, %0"
+			      : "=r" (pteh)
+			      : "r" (tlb) );
+
+		pteh_epn = pteh & PAGE_MASK;
+		pteh_low = pteh & ~PAGE_MASK;
+
+		if (pteh_low == match && pteh_epn >= start && pteh_epn <= end)
+			__flush_tlb_slot(tlb);
+	}
+
+	/* Flush DTLB */
+	for_each_dtlb_entry(tlb) {
+		asm volatile ("getcfg	%1, 0, %0"
+			      : "=r" (pteh)
+			      : "r" (tlb) );
+
+		pteh_epn = pteh & PAGE_MASK;
+		pteh_low = pteh & ~PAGE_MASK;
+
+		if (pteh_low == match && pteh_epn >= start && pteh_epn <= end)
+			__flush_tlb_slot(tlb);
+	}
+
+	local_irq_restore(flags);
+}
+
+void local_flush_tlb_mm(struct mm_struct *mm)
+{
+	unsigned long flags;
+	unsigned int cpu = smp_processor_id();
+
+	if (cpu_context(cpu, mm) == NO_CONTEXT)
+		return;
+
+	local_irq_save(flags);
+
+	cpu_context(cpu, mm) = NO_CONTEXT;
+	if (mm == current->mm)
+		activate_context(mm, cpu);
+
+	local_irq_restore(flags);
+}
+
+void local_flush_tlb_all(void)
+{
+	/* Invalidate all, including shared pages, excluding fixed TLBs */
+	unsigned long flags, tlb;
+
+	local_irq_save(flags);
+
+	/* Flush each ITLB entry */
+	for_each_itlb_entry(tlb)
+		__flush_tlb_slot(tlb);
+
+	/* Flush each DTLB entry */
+	for_each_dtlb_entry(tlb)
+		__flush_tlb_slot(tlb);
+
+	local_irq_restore(flags);
+}
+
+void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+        /* FIXME: Optimize this later.. */
+        flush_tlb_all();
+}
diff --git a/arch/sh64/mm/fault.c b/arch/sh64/mm/fault.c
deleted file mode 100644
index 7c79a1ba8059..000000000000
--- a/arch/sh64/mm/fault.c
+++ /dev/null
@@ -1,602 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/fault.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003  Richard Curnow (/proc/tlb, bug fixes)
- * Copyright (C) 2003  Paul Mundt
- *
- */
-
-#include <linux/signal.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/tlb.h>
-#include <asm/uaccess.h>
-#include <asm/pgalloc.h>
-#include <asm/mmu_context.h>
-#include <asm/registers.h>		/* required by inline asm statements */
-
-#if defined(CONFIG_SH64_PROC_TLB)
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-/* Count numbers of tlb refills in each region */
-static unsigned long long calls_to_update_mmu_cache = 0ULL;
-static unsigned long long calls_to_flush_tlb_page   = 0ULL;
-static unsigned long long calls_to_flush_tlb_range  = 0ULL;
-static unsigned long long calls_to_flush_tlb_mm     = 0ULL;
-static unsigned long long calls_to_flush_tlb_all    = 0ULL;
-unsigned long long calls_to_do_slow_page_fault = 0ULL;
-unsigned long long calls_to_do_fast_page_fault = 0ULL;
-
-/* Count size of ranges for flush_tlb_range */
-static unsigned long long flush_tlb_range_1         = 0ULL;
-static unsigned long long flush_tlb_range_2         = 0ULL;
-static unsigned long long flush_tlb_range_3_4       = 0ULL;
-static unsigned long long flush_tlb_range_5_7       = 0ULL;
-static unsigned long long flush_tlb_range_8_11      = 0ULL;
-static unsigned long long flush_tlb_range_12_15     = 0ULL;
-static unsigned long long flush_tlb_range_16_up     = 0ULL;
-
-static unsigned long long page_not_present          = 0ULL;
-
-#endif
-
-extern void die(const char *,struct pt_regs *,long);
-
-#define PFLAG(val,flag)   (( (val) & (flag) ) ? #flag : "" )
-#define PPROT(flag) PFLAG(pgprot_val(prot),flag)
-
-static inline void print_prots(pgprot_t prot)
-{
-	printk("prot is 0x%08lx\n",pgprot_val(prot));
-
-	printk("%s %s %s %s %s\n",PPROT(_PAGE_SHARED),PPROT(_PAGE_READ),
-	       PPROT(_PAGE_EXECUTE),PPROT(_PAGE_WRITE),PPROT(_PAGE_USER));
-}
-
-static inline void print_vma(struct vm_area_struct *vma)
-{
-	printk("vma start 0x%08lx\n", vma->vm_start);
-	printk("vma end   0x%08lx\n", vma->vm_end);
-
-	print_prots(vma->vm_page_prot);
-	printk("vm_flags 0x%08lx\n", vma->vm_flags);
-}
-
-static inline void print_task(struct task_struct *tsk)
-{
-	printk("Task pid %d\n", task_pid_nr(tsk));
-}
-
-static pte_t *lookup_pte(struct mm_struct *mm, unsigned long address)
-{
-	pgd_t *dir;
-	pmd_t *pmd;
-	pte_t *pte;
-	pte_t entry;
-
-	dir = pgd_offset(mm, address);
-	if (pgd_none(*dir)) {
-		return NULL;
-	}
-
-	pmd = pmd_offset(dir, address);
-	if (pmd_none(*pmd)) {
-		return NULL;
-	}
-
-	pte = pte_offset_kernel(pmd, address);
-	entry = *pte;
-
-	if (pte_none(entry)) {
-		return NULL;
-	}
-	if (!pte_present(entry)) {
-		return NULL;
-	}
-
-	return pte;
-}
-
-/*
- * This routine handles page faults.  It determines the address,
- * and the problem, and then passes it off to one of the appropriate
- * routines.
- */
-asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
-			      unsigned long textaccess, unsigned long address)
-{
-	struct task_struct *tsk;
-	struct mm_struct *mm;
-	struct vm_area_struct * vma;
-	const struct exception_table_entry *fixup;
-	pte_t *pte;
-	int fault;
-
-#if defined(CONFIG_SH64_PROC_TLB)
-        ++calls_to_do_slow_page_fault;
-#endif
-
-	/* SIM
-	 * Note this is now called with interrupts still disabled
-	 * This is to cope with being called for a missing IO port
-	 * address with interrupts disabled. This should be fixed as
-	 * soon as we have a better 'fast path' miss handler.
-	 *
-	 * Plus take care how you try and debug this stuff.
-	 * For example, writing debug data to a port which you
-	 * have just faulted on is not going to work.
-	 */
-
-	tsk = current;
-	mm = tsk->mm;
-
-	/* Not an IO address, so reenable interrupts */
-	local_irq_enable();
-
-	/*
-	 * If we're in an interrupt or have no user
-	 * context, we must not take the fault..
-	 */
-	if (in_atomic() || !mm)
-		goto no_context;
-
-	/* TLB misses upon some cache flushes get done under cli() */
-	down_read(&mm->mmap_sem);
-
-	vma = find_vma(mm, address);
-
-	if (!vma) {
-#ifdef DEBUG_FAULT
-		print_task(tsk);
-		printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
-		       __FUNCTION__,__LINE__,
-		       address,regs->pc,textaccess,writeaccess);
-		show_regs(regs);
-#endif
-		goto bad_area;
-	}
-	if (vma->vm_start <= address) {
-		goto good_area;
-	}
-
-	if (!(vma->vm_flags & VM_GROWSDOWN)) {
-#ifdef DEBUG_FAULT
-		print_task(tsk);
-		printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
-		       __FUNCTION__,__LINE__,
-		       address,regs->pc,textaccess,writeaccess);
-		show_regs(regs);
-
-		print_vma(vma);
-#endif
-		goto bad_area;
-	}
-	if (expand_stack(vma, address)) {
-#ifdef DEBUG_FAULT
-		print_task(tsk);
-		printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
-		       __FUNCTION__,__LINE__,
-		       address,regs->pc,textaccess,writeaccess);
-		show_regs(regs);
-#endif
-		goto bad_area;
-	}
-/*
- * Ok, we have a good vm_area for this memory access, so
- * we can handle it..
- */
-good_area:
-	if (textaccess) {
-		if (!(vma->vm_flags & VM_EXEC))
-			goto bad_area;
-	} else {
-		if (writeaccess) {
-			if (!(vma->vm_flags & VM_WRITE))
-				goto bad_area;
-		} else {
-			if (!(vma->vm_flags & VM_READ))
-				goto bad_area;
-		}
-	}
-
-	/*
-	 * If for any reason at all we couldn't handle the fault,
-	 * make sure we exit gracefully rather than endlessly redo
-	 * the fault.
-	 */
-survive:
-	fault = handle_mm_fault(mm, vma, address, writeaccess);
-	if (unlikely(fault & VM_FAULT_ERROR)) {
-		if (fault & VM_FAULT_OOM)
-			goto out_of_memory;
-		else if (fault & VM_FAULT_SIGBUS)
-			goto do_sigbus;
-		BUG();
-	}
-	if (fault & VM_FAULT_MAJOR)
-		tsk->maj_flt++;
-	else
-		tsk->min_flt++;
-
-	/* If we get here, the page fault has been handled.  Do the TLB refill
-	   now from the newly-setup PTE, to avoid having to fault again right
-	   away on the same instruction. */
-	pte = lookup_pte (mm, address);
-	if (!pte) {
-		/* From empirical evidence, we can get here, due to
-		   !pte_present(pte).  (e.g. if a swap-in occurs, and the page
-		   is swapped back out again before the process that wanted it
-		   gets rescheduled?) */
-		goto no_pte;
-	}
-
-	__do_tlb_refill(address, textaccess, pte);
-
-no_pte:
-
-	up_read(&mm->mmap_sem);
-	return;
-
-/*
- * Something tried to access memory that isn't in our memory map..
- * Fix it, but check if it's kernel or user first..
- */
-bad_area:
-#ifdef DEBUG_FAULT
-	printk("fault:bad area\n");
-#endif
-	up_read(&mm->mmap_sem);
-
-	if (user_mode(regs)) {
-		static int count=0;
-		siginfo_t info;
-		if (count < 4) {
-			/* This is really to help debug faults when starting
-			 * usermode, so only need a few */
-			count++;
-			printk("user mode bad_area address=%08lx pid=%d (%s) pc=%08lx\n",
-				address, task_pid_nr(current), current->comm,
-				(unsigned long) regs->pc);
-#if 0
-			show_regs(regs);
-#endif
-		}
-		if (is_global_init(tsk)) {
-			panic("INIT had user mode bad_area\n");
-		}
-		tsk->thread.address = address;
-		tsk->thread.error_code = writeaccess;
-		info.si_signo = SIGSEGV;
-		info.si_errno = 0;
-		info.si_addr = (void *) address;
-		force_sig_info(SIGSEGV, &info, tsk);
-		return;
-	}
-
-no_context:
-#ifdef DEBUG_FAULT
-	printk("fault:No context\n");
-#endif
-	/* Are we prepared to handle this kernel fault?  */
-	fixup = search_exception_tables(regs->pc);
-	if (fixup) {
-		regs->pc = fixup->fixup;
-		return;
-	}
-
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- *
- */
-	if (address < PAGE_SIZE)
-		printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
-	else
-		printk(KERN_ALERT "Unable to handle kernel paging request");
-	printk(" at virtual address %08lx\n", address);
-	printk(KERN_ALERT "pc = %08Lx%08Lx\n", regs->pc >> 32, regs->pc & 0xffffffff);
-	die("Oops", regs, writeaccess);
-	do_exit(SIGKILL);
-
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
-out_of_memory:
-	if (is_global_init(current)) {
-		panic("INIT out of memory\n");
-		yield();
-		goto survive;
-	}
-	printk("fault:Out of memory\n");
-	up_read(&mm->mmap_sem);
-	if (is_global_init(current)) {
-		yield();
-		down_read(&mm->mmap_sem);
-		goto survive;
-	}
-	printk("VM: killing process %s\n", tsk->comm);
-	if (user_mode(regs))
-		do_group_exit(SIGKILL);
-	goto no_context;
-
-do_sigbus:
-	printk("fault:Do sigbus\n");
-	up_read(&mm->mmap_sem);
-
-	/*
-	 * Send a sigbus, regardless of whether we were in kernel
-	 * or user mode.
-	 */
-	tsk->thread.address = address;
-	tsk->thread.error_code = writeaccess;
-	tsk->thread.trap_no = 14;
-	force_sig(SIGBUS, tsk);
-
-	/* Kernel mode? Handle exceptions or die */
-	if (!user_mode(regs))
-		goto no_context;
-}
-
-
-void flush_tlb_all(void);
-
-void update_mmu_cache(struct vm_area_struct * vma,
-			unsigned long address, pte_t pte)
-{
-#if defined(CONFIG_SH64_PROC_TLB)
-	++calls_to_update_mmu_cache;
-#endif
-
-	/*
-	 * This appears to get called once for every pte entry that gets
-	 * established => I don't think it's efficient to try refilling the
-	 * TLBs with the pages - some may not get accessed even.  Also, for
-	 * executable pages, it is impossible to determine reliably here which
-	 * TLB they should be mapped into (or both even).
-	 *
-	 * So, just do nothing here and handle faults on demand.  In the
-	 * TLBMISS handling case, the refill is now done anyway after the pte
-	 * has been fixed up, so that deals with most useful cases.
-	 */
-}
-
-static void __flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
-	unsigned long long match, pteh=0, lpage;
-	unsigned long tlb;
-	struct mm_struct *mm;
-
-	mm = vma->vm_mm;
-
-	if (mm->context == NO_CONTEXT)
-		return;
-
-	/*
-	 * Sign-extend based on neff.
-	 */
-	lpage = (page & NEFF_SIGN) ? (page | NEFF_MASK) : page;
-	match = ((mm->context & MMU_CONTEXT_ASID_MASK) << PTEH_ASID_SHIFT) | PTEH_VALID;
-	match |= lpage;
-
-        /* Do ITLB : don't bother for pages in non-exectutable VMAs */
-	if (vma->vm_flags & VM_EXEC) {
-		for_each_itlb_entry(tlb) {
-			asm volatile ("getcfg	%1, 0, %0"
-				      : "=r" (pteh)
-				      : "r" (tlb) );
-
-			if (pteh == match) {
-				__flush_tlb_slot(tlb);
-				break;
-			}
-
-		}
-	}
-
-        /* Do DTLB : any page could potentially be in here. */
-	for_each_dtlb_entry(tlb) {
-		asm volatile ("getcfg	%1, 0, %0"
-			      : "=r" (pteh)
-			      : "r" (tlb) );
-
-		if (pteh == match) {
-			__flush_tlb_slot(tlb);
-			break;
-		}
-
-	}
-}
-
-void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
-	unsigned long flags;
-
-#if defined(CONFIG_SH64_PROC_TLB)
-        ++calls_to_flush_tlb_page;
-#endif
-
-	if (vma->vm_mm) {
-		page &= PAGE_MASK;
-		local_irq_save(flags);
-		__flush_tlb_page(vma, page);
-		local_irq_restore(flags);
-	}
-}
-
-void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
-		     unsigned long end)
-{
-	unsigned long flags;
-	unsigned long long match, pteh=0, pteh_epn, pteh_low;
-	unsigned long tlb;
-	struct mm_struct *mm;
-
-	mm = vma->vm_mm;
-
-#if defined(CONFIG_SH64_PROC_TLB)
-	++calls_to_flush_tlb_range;
-
-	{
-		unsigned long size = (end - 1) - start;
-		size >>= 12; /* divide by PAGE_SIZE */
-		size++; /* end=start+4096 => 1 page */
-		switch (size) {
-		  case  1        : flush_tlb_range_1++;     break;
-		  case  2        : flush_tlb_range_2++;     break;
-		  case  3 ...  4 : flush_tlb_range_3_4++;   break;
-		  case  5 ...  7 : flush_tlb_range_5_7++;   break;
-		  case  8 ... 11 : flush_tlb_range_8_11++;  break;
-		  case 12 ... 15 : flush_tlb_range_12_15++; break;
-		  default        : flush_tlb_range_16_up++; break;
-		}
-	}
-#endif
-
-	if (mm->context == NO_CONTEXT)
-		return;
-
-	local_irq_save(flags);
-
-	start &= PAGE_MASK;
-	end &= PAGE_MASK;
-
-	match = ((mm->context & MMU_CONTEXT_ASID_MASK) << PTEH_ASID_SHIFT) | PTEH_VALID;
-
-	/* Flush ITLB */
-	for_each_itlb_entry(tlb) {
-		asm volatile ("getcfg	%1, 0, %0"
-			      : "=r" (pteh)
-			      : "r" (tlb) );
-
-		pteh_epn = pteh & PAGE_MASK;
-		pteh_low = pteh & ~PAGE_MASK;
-
-		if (pteh_low == match && pteh_epn >= start && pteh_epn <= end)
-			__flush_tlb_slot(tlb);
-	}
-
-	/* Flush DTLB */
-	for_each_dtlb_entry(tlb) {
-		asm volatile ("getcfg	%1, 0, %0"
-			      : "=r" (pteh)
-			      : "r" (tlb) );
-
-		pteh_epn = pteh & PAGE_MASK;
-		pteh_low = pteh & ~PAGE_MASK;
-
-		if (pteh_low == match && pteh_epn >= start && pteh_epn <= end)
-			__flush_tlb_slot(tlb);
-	}
-
-	local_irq_restore(flags);
-}
-
-void flush_tlb_mm(struct mm_struct *mm)
-{
-	unsigned long flags;
-
-#if defined(CONFIG_SH64_PROC_TLB)
-	++calls_to_flush_tlb_mm;
-#endif
-
-	if (mm->context == NO_CONTEXT)
-		return;
-
-	local_irq_save(flags);
-
-	mm->context=NO_CONTEXT;
-	if(mm==current->mm)
-		activate_context(mm);
-
-	local_irq_restore(flags);
-
-}
-
-void flush_tlb_all(void)
-{
-	/* Invalidate all, including shared pages, excluding fixed TLBs */
-
-	unsigned long flags, tlb;
-
-#if defined(CONFIG_SH64_PROC_TLB)
-	++calls_to_flush_tlb_all;
-#endif
-
-	local_irq_save(flags);
-
-	/* Flush each ITLB entry */
-	for_each_itlb_entry(tlb) {
-		__flush_tlb_slot(tlb);
-	}
-
-	/* Flush each DTLB entry */
-	for_each_dtlb_entry(tlb) {
-		__flush_tlb_slot(tlb);
-	}
-
-	local_irq_restore(flags);
-}
-
-void flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
-        /* FIXME: Optimize this later.. */
-        flush_tlb_all();
-}
-
-#if defined(CONFIG_SH64_PROC_TLB)
-/* Procfs interface to read the performance information */
-
-static int
-tlb_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, void *data)
-{
-  int len=0;
-  len += sprintf(buf+len, "do_fast_page_fault   called %12lld times\n", calls_to_do_fast_page_fault);
-  len += sprintf(buf+len, "do_slow_page_fault   called %12lld times\n", calls_to_do_slow_page_fault);
-  len += sprintf(buf+len, "update_mmu_cache     called %12lld times\n", calls_to_update_mmu_cache);
-  len += sprintf(buf+len, "flush_tlb_page       called %12lld times\n", calls_to_flush_tlb_page);
-  len += sprintf(buf+len, "flush_tlb_range      called %12lld times\n", calls_to_flush_tlb_range);
-  len += sprintf(buf+len, "flush_tlb_mm         called %12lld times\n", calls_to_flush_tlb_mm);
-  len += sprintf(buf+len, "flush_tlb_all        called %12lld times\n", calls_to_flush_tlb_all);
-  len += sprintf(buf+len, "flush_tlb_range_sizes\n"
-                          " 1      : %12lld\n"
-                          " 2      : %12lld\n"
-                          " 3 -  4 : %12lld\n"
-                          " 5 -  7 : %12lld\n"
-                          " 8 - 11 : %12lld\n"
-                          "12 - 15 : %12lld\n"
-                          "16+     : %12lld\n",
-                          flush_tlb_range_1, flush_tlb_range_2, flush_tlb_range_3_4,
-                          flush_tlb_range_5_7, flush_tlb_range_8_11, flush_tlb_range_12_15,
-                          flush_tlb_range_16_up);
-  len += sprintf(buf+len, "page not present           %12lld times\n", page_not_present);
-  *eof = 1;
-  return len;
-}
-
-static int __init register_proc_tlb(void)
-{
-  create_proc_read_entry("tlb", 0, NULL, tlb_proc_info, NULL);
-  return 0;
-}
-
-__initcall(register_proc_tlb);
-
-#endif
-- 
cgit v1.2.3-59-g8ed1b


From 7cfee5ac3edd3b4226018da6aad87334793cb1c5 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 19 Nov 2007 19:00:41 +0900
Subject: sh: Move over sh64 switch_to and stack unwinder.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/sh5/Makefile   |   4 +-
 arch/sh/kernel/cpu/sh5/switchto.S | 198 +++++++++++++++++++++++
 arch/sh/kernel/cpu/sh5/unwind.c   | 326 ++++++++++++++++++++++++++++++++++++++
 arch/sh64/kernel/switchto.S       | 198 -----------------------
 arch/sh64/kernel/unwind.c         | 326 --------------------------------------
 5 files changed, 527 insertions(+), 525 deletions(-)
 create mode 100644 arch/sh/kernel/cpu/sh5/switchto.S
 create mode 100644 arch/sh/kernel/cpu/sh5/unwind.c
 delete mode 100644 arch/sh64/kernel/switchto.S
 delete mode 100644 arch/sh64/kernel/unwind.c

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/sh5/Makefile b/arch/sh/kernel/cpu/sh5/Makefile
index 9778f9bdff3a..7ea10732b5cc 100644
--- a/arch/sh/kernel/cpu/sh5/Makefile
+++ b/arch/sh/kernel/cpu/sh5/Makefile
@@ -1 +1,3 @@
-obj-y := entry.o
+obj-y := entry.o switchto.o
+
+obj-$(CONFIG_KALLSYMS)		+= unwind.o
diff --git a/arch/sh/kernel/cpu/sh5/switchto.S b/arch/sh/kernel/cpu/sh5/switchto.S
new file mode 100644
index 000000000000..45b2d90eed7d
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh5/switchto.S
@@ -0,0 +1,198 @@
+/*
+ * arch/sh64/kernel/switchto.S
+ *
+ * sh64 context switch
+ *
+ * Copyright (C) 2004  Richard Curnow
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+*/
+
+	.section .text..SHmedia32,"ax"
+	.little
+
+	.balign 32
+
+	.type sh64_switch_to,@function
+	.global sh64_switch_to
+	.global __sh64_switch_to_end
+sh64_switch_to:
+
+/* Incoming args
+   r2 - prev
+   r3 - &prev->thread
+   r4 - next
+   r5 - &next->thread
+
+   Outgoing results
+   r2 - last (=prev) : this just stays in r2 throughout
+
+   Want to create a full (struct pt_regs) on the stack to allow backtracing
+   functions to work.  However, we only need to populate the callee-save
+   register slots in this structure; since we're a function our ancestors must
+   have themselves preserved all caller saved state in the stack.  This saves
+   some wasted effort since we won't need to look at the values.
+
+   In particular, all caller-save registers are immediately available for
+   scratch use.
+
+*/
+
+#define FRAME_SIZE (76*8 + 8)
+
+	movi	FRAME_SIZE, r0
+	sub.l	r15, r0, r15
+	! Do normal-style register save to support backtrace
+
+	st.l	r15,   0, r18	! save link reg
+	st.l	r15,   4, r14	! save fp
+	add.l	r15, r63, r14	! setup frame pointer
+
+	! hopefully this looks normal to the backtrace now.
+
+	addi.l	r15,   8, r1    ! base of pt_regs
+	addi.l	r1,   24, r0    ! base of pt_regs.regs
+	addi.l	r0, (63*8), r8	! base of pt_regs.trregs
+
+	/* Note : to be fixed?
+	   struct pt_regs is really designed for holding the state on entry
+	   to an exception, i.e. pc,sr,regs etc.  However, for the context
+	   switch state, some of this is not required.  But the unwinder takes
+	   struct pt_regs * as an arg so we have to build this structure
+	   to allow unwinding switched tasks in show_state() */
+
+	st.q	r0, ( 9*8), r9
+	st.q	r0, (10*8), r10
+	st.q	r0, (11*8), r11
+	st.q	r0, (12*8), r12
+	st.q	r0, (13*8), r13
+	st.q	r0, (14*8), r14 ! for unwind, want to look as though we took a trap at
+	! the point where the process is left in suspended animation, i.e. current
+	! fp here, not the saved one.
+	st.q	r0, (16*8), r16
+
+	st.q	r0, (24*8), r24
+	st.q	r0, (25*8), r25
+	st.q	r0, (26*8), r26
+	st.q	r0, (27*8), r27
+	st.q	r0, (28*8), r28
+	st.q	r0, (29*8), r29
+	st.q	r0, (30*8), r30
+	st.q	r0, (31*8), r31
+	st.q	r0, (32*8), r32
+	st.q	r0, (33*8), r33
+	st.q	r0, (34*8), r34
+	st.q	r0, (35*8), r35
+
+	st.q	r0, (44*8), r44
+	st.q	r0, (45*8), r45
+	st.q	r0, (46*8), r46
+	st.q	r0, (47*8), r47
+	st.q	r0, (48*8), r48
+	st.q	r0, (49*8), r49
+	st.q	r0, (50*8), r50
+	st.q	r0, (51*8), r51
+	st.q	r0, (52*8), r52
+	st.q	r0, (53*8), r53
+	st.q	r0, (54*8), r54
+	st.q	r0, (55*8), r55
+	st.q	r0, (56*8), r56
+	st.q	r0, (57*8), r57
+	st.q	r0, (58*8), r58
+	st.q	r0, (59*8), r59
+
+	! do this early as pta->gettr has no pipeline forwarding (=> 5 cycle latency)
+	! Use a local label to avoid creating a symbol that will confuse the !
+	! backtrace
+	pta	.Lsave_pc, tr0
+
+	gettr	tr5, r45
+	gettr	tr6, r46
+	gettr	tr7, r47
+	st.q	r8, (5*8), r45
+	st.q	r8, (6*8), r46
+	st.q	r8, (7*8), r47
+
+	! Now switch context
+	gettr	tr0, r9
+	st.l	r3, 0, r15	! prev->thread.sp
+	st.l	r3, 8, r1	! prev->thread.kregs
+	st.l	r3, 4, r9	! prev->thread.pc
+	st.q	r1, 0, r9	! save prev->thread.pc into pt_regs->pc
+
+	! Load PC for next task (init value or save_pc later)
+	ld.l	r5, 4, r18	! next->thread.pc
+	! Switch stacks
+	ld.l	r5, 0, r15	! next->thread.sp
+	ptabs	r18, tr0
+
+	! Update current
+	ld.l	r4, 4, r9	! next->thread_info (2nd element of next task_struct)
+	putcon	r9, kcr0	! current = next->thread_info
+
+	! go to save_pc for a reschedule, or the initial thread.pc for a new process
+	blink	tr0, r63
+
+	! Restore (when we come back to a previously saved task)
+.Lsave_pc:
+	addi.l	r15, 32, r0	! r0 = next's regs
+	addi.l	r0, (63*8), r8	! r8 = next's tr_regs
+
+	ld.q	r8, (5*8), r45
+	ld.q	r8, (6*8), r46
+	ld.q	r8, (7*8), r47
+	ptabs	r45, tr5
+	ptabs	r46, tr6
+	ptabs	r47, tr7
+
+	ld.q	r0, ( 9*8), r9
+	ld.q	r0, (10*8), r10
+	ld.q	r0, (11*8), r11
+	ld.q	r0, (12*8), r12
+	ld.q	r0, (13*8), r13
+	ld.q	r0, (14*8), r14
+	ld.q	r0, (16*8), r16
+
+	ld.q	r0, (24*8), r24
+	ld.q	r0, (25*8), r25
+	ld.q	r0, (26*8), r26
+	ld.q	r0, (27*8), r27
+	ld.q	r0, (28*8), r28
+	ld.q	r0, (29*8), r29
+	ld.q	r0, (30*8), r30
+	ld.q	r0, (31*8), r31
+	ld.q	r0, (32*8), r32
+	ld.q	r0, (33*8), r33
+	ld.q	r0, (34*8), r34
+	ld.q	r0, (35*8), r35
+
+	ld.q	r0, (44*8), r44
+	ld.q	r0, (45*8), r45
+	ld.q	r0, (46*8), r46
+	ld.q	r0, (47*8), r47
+	ld.q	r0, (48*8), r48
+	ld.q	r0, (49*8), r49
+	ld.q	r0, (50*8), r50
+	ld.q	r0, (51*8), r51
+	ld.q	r0, (52*8), r52
+	ld.q	r0, (53*8), r53
+	ld.q	r0, (54*8), r54
+	ld.q	r0, (55*8), r55
+	ld.q	r0, (56*8), r56
+	ld.q	r0, (57*8), r57
+	ld.q	r0, (58*8), r58
+	ld.q	r0, (59*8), r59
+
+	! epilogue
+	ld.l	r15, 0, r18
+	ld.l	r15, 4, r14
+	ptabs	r18, tr0
+	movi	FRAME_SIZE, r0
+	add	r15, r0, r15
+	blink	tr0, r63
+__sh64_switch_to_end:
+.LFE1:
+	.size	sh64_switch_to,.LFE1-sh64_switch_to
+
diff --git a/arch/sh/kernel/cpu/sh5/unwind.c b/arch/sh/kernel/cpu/sh5/unwind.c
new file mode 100644
index 000000000000..1214c78e3584
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh5/unwind.c
@@ -0,0 +1,326 @@
+/*
+ * arch/sh64/kernel/unwind.c
+ *
+ * Copyright (C) 2004  Paul Mundt
+ * Copyright (C) 2004  Richard Curnow
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/kallsyms.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <asm/page.h>
+#include <asm/ptrace.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+
+static u8 regcache[63];
+
+/*
+ * Finding the previous stack frame isn't horribly straightforward as it is
+ * on some other platforms. In the sh64 case, we don't have "linked" stack
+ * frames, so we need to do a bit of work to determine the previous frame,
+ * and in turn, the previous r14/r18 pair.
+ *
+ * There are generally a few cases which determine where we can find out
+ * the r14/r18 values. In the general case, this can be determined by poking
+ * around the prologue of the symbol PC is in (note that we absolutely must
+ * have frame pointer support as well as the kernel symbol table mapped,
+ * otherwise we can't even get this far).
+ *
+ * In other cases, such as the interrupt/exception path, we can poke around
+ * the sp/fp.
+ *
+ * Notably, this entire approach is somewhat error prone, and in the event
+ * that the previous frame cannot be determined, that's all we can do.
+ * Either way, this still leaves us with a more correct backtrace then what
+ * we would be able to come up with by walking the stack (which is garbage
+ * for anything beyond the first frame).
+ *						-- PFM.
+ */
+static int lookup_prev_stack_frame(unsigned long fp, unsigned long pc,
+		      unsigned long *pprev_fp, unsigned long *pprev_pc,
+		      struct pt_regs *regs)
+{
+	const char *sym;
+	char namebuf[128];
+	unsigned long offset;
+	unsigned long prologue = 0;
+	unsigned long fp_displacement = 0;
+	unsigned long fp_prev = 0;
+	unsigned long offset_r14 = 0, offset_r18 = 0;
+	int i, found_prologue_end = 0;
+
+	sym = kallsyms_lookup(pc, NULL, &offset, NULL, namebuf);
+	if (!sym)
+		return -EINVAL;
+
+	prologue = pc - offset;
+	if (!prologue)
+		return -EINVAL;
+
+	/* Validate fp, to avoid risk of dereferencing a bad pointer later.
+	   Assume 128Mb since that's the amount of RAM on a Cayman.  Modify
+	   when there is an SH-5 board with more. */
+	if ((fp < (unsigned long) phys_to_virt(__MEMORY_START)) ||
+	    (fp >= (unsigned long)(phys_to_virt(__MEMORY_START)) + 128*1024*1024) ||
+	    ((fp & 7) != 0)) {
+		return -EINVAL;
+	}
+
+	/*
+	 * Depth to walk, depth is completely arbitrary.
+	 */
+	for (i = 0; i < 100; i++, prologue += sizeof(unsigned long)) {
+		unsigned long op;
+		u8 major, minor;
+		u8 src, dest, disp;
+
+		op = *(unsigned long *)prologue;
+
+		major = (op >> 26) & 0x3f;
+		src   = (op >> 20) & 0x3f;
+		minor = (op >> 16) & 0xf;
+		disp  = (op >> 10) & 0x3f;
+		dest  = (op >>  4) & 0x3f;
+
+		/*
+		 * Stack frame creation happens in a number of ways.. in the
+		 * general case when the stack frame is less than 511 bytes,
+		 * it's generally created by an addi or addi.l:
+		 *
+		 *	addi/addi.l r15, -FRAME_SIZE, r15
+		 *
+		 * in the event that the frame size is bigger than this, it's
+		 * typically created using a movi/sub pair as follows:
+		 *
+		 *	movi	FRAME_SIZE, rX
+		 *	sub	r15, rX, r15
+		 */
+
+		switch (major) {
+		case (0x00 >> 2):
+			switch (minor) {
+			case 0x8: /* add.l */
+			case 0x9: /* add */
+				/* Look for r15, r63, r14 */
+				if (src == 15 && disp == 63 && dest == 14)
+					found_prologue_end = 1;
+
+				break;
+			case 0xa: /* sub.l */
+			case 0xb: /* sub */
+				if (src != 15 || dest != 15)
+					continue;
+
+				fp_displacement -= regcache[disp];
+				fp_prev = fp - fp_displacement;
+				break;
+			}
+			break;
+		case (0xa8 >> 2): /* st.l */
+			if (src != 15)
+				continue;
+
+			switch (dest) {
+			case 14:
+				if (offset_r14 || fp_displacement == 0)
+					continue;
+
+				offset_r14 = (u64)(((((s64)op >> 10) & 0x3ff) << 54) >> 54);
+				offset_r14 *= sizeof(unsigned long);
+				offset_r14 += fp_displacement;
+				break;
+			case 18:
+				if (offset_r18 || fp_displacement == 0)
+					continue;
+
+				offset_r18 = (u64)(((((s64)op >> 10) & 0x3ff) << 54) >> 54);
+				offset_r18 *= sizeof(unsigned long);
+				offset_r18 += fp_displacement;
+				break;
+			}
+
+			break;
+		case (0xcc >> 2): /* movi */
+			if (dest >= 63) {
+				printk(KERN_NOTICE "%s: Invalid dest reg %d "
+				       "specified in movi handler. Failed "
+				       "opcode was 0x%lx: ", __FUNCTION__,
+				       dest, op);
+
+				continue;
+			}
+
+			/* Sign extend */
+			regcache[dest] =
+				((((s64)(u64)op >> 10) & 0xffff) << 54) >> 54;
+			break;
+		case (0xd0 >> 2): /* addi */
+		case (0xd4 >> 2): /* addi.l */
+			/* Look for r15, -FRAME_SIZE, r15 */
+			if (src != 15 || dest != 15)
+				continue;
+
+			/* Sign extended frame size.. */
+			fp_displacement +=
+				(u64)(((((s64)op >> 10) & 0x3ff) << 54) >> 54);
+			fp_prev = fp - fp_displacement;
+			break;
+		}
+
+		if (found_prologue_end && offset_r14 && (offset_r18 || *pprev_pc) && fp_prev)
+			break;
+	}
+
+	if (offset_r14 == 0 || fp_prev == 0) {
+		if (!offset_r14)
+			pr_debug("Unable to find r14 offset\n");
+		if (!fp_prev)
+			pr_debug("Unable to find previous fp\n");
+
+		return -EINVAL;
+	}
+
+	/* For innermost leaf function, there might not be a offset_r18 */
+	if (!*pprev_pc && (offset_r18 == 0))
+		return -EINVAL;
+
+	*pprev_fp = *(unsigned long *)(fp_prev + offset_r14);
+
+	if (offset_r18)
+		*pprev_pc = *(unsigned long *)(fp_prev + offset_r18);
+
+	*pprev_pc &= ~1;
+
+	return 0;
+}
+
+/* Don't put this on the stack since we'll want to call sh64_unwind
+ * when we're close to underflowing the stack anyway. */
+static struct pt_regs here_regs;
+
+extern const char syscall_ret;
+extern const char ret_from_syscall;
+extern const char ret_from_exception;
+extern const char ret_from_irq;
+
+static void sh64_unwind_inner(struct pt_regs *regs);
+
+static void unwind_nested (unsigned long pc, unsigned long fp)
+{
+	if ((fp >= __MEMORY_START) &&
+	    ((fp & 7) == 0)) {
+		sh64_unwind_inner((struct pt_regs *) fp);
+	}
+}
+
+static void sh64_unwind_inner(struct pt_regs *regs)
+{
+	unsigned long pc, fp;
+	int ofs = 0;
+	int first_pass;
+
+	pc = regs->pc & ~1;
+	fp = regs->regs[14];
+
+	first_pass = 1;
+	for (;;) {
+		int cond;
+		unsigned long next_fp, next_pc;
+
+		if (pc == ((unsigned long) &syscall_ret & ~1)) {
+			printk("SYSCALL\n");
+			unwind_nested(pc,fp);
+			return;
+		}
+
+		if (pc == ((unsigned long) &ret_from_syscall & ~1)) {
+			printk("SYSCALL (PREEMPTED)\n");
+			unwind_nested(pc,fp);
+			return;
+		}
+
+		/* In this case, the PC is discovered by lookup_prev_stack_frame but
+		   it has 4 taken off it to look like the 'caller' */
+		if (pc == ((unsigned long) &ret_from_exception & ~1)) {
+			printk("EXCEPTION\n");
+			unwind_nested(pc,fp);
+			return;
+		}
+
+		if (pc == ((unsigned long) &ret_from_irq & ~1)) {
+			printk("IRQ\n");
+			unwind_nested(pc,fp);
+			return;
+		}
+
+		cond = ((pc >= __MEMORY_START) && (fp >= __MEMORY_START) &&
+			((pc & 3) == 0) && ((fp & 7) == 0));
+
+		pc -= ofs;
+
+		printk("[<%08lx>] ", pc);
+		print_symbol("%s\n", pc);
+
+		if (first_pass) {
+			/* If the innermost frame is a leaf function, it's
+			 * possible that r18 is never saved out to the stack.
+			 */
+			next_pc = regs->regs[18];
+		} else {
+			next_pc = 0;
+		}
+
+		if (lookup_prev_stack_frame(fp, pc, &next_fp, &next_pc, regs) == 0) {
+			ofs = sizeof(unsigned long);
+			pc = next_pc & ~1;
+			fp = next_fp;
+		} else {
+			printk("Unable to lookup previous stack frame\n");
+			break;
+		}
+		first_pass = 0;
+	}
+
+	printk("\n");
+
+}
+
+void sh64_unwind(struct pt_regs *regs)
+{
+	if (!regs) {
+		/*
+		 * Fetch current regs if we have no other saved state to back
+		 * trace from.
+		 */
+		regs = &here_regs;
+
+		__asm__ __volatile__ ("ori r14, 0, %0" : "=r" (regs->regs[14]));
+		__asm__ __volatile__ ("ori r15, 0, %0" : "=r" (regs->regs[15]));
+		__asm__ __volatile__ ("ori r18, 0, %0" : "=r" (regs->regs[18]));
+
+		__asm__ __volatile__ ("gettr tr0, %0" : "=r" (regs->tregs[0]));
+		__asm__ __volatile__ ("gettr tr1, %0" : "=r" (regs->tregs[1]));
+		__asm__ __volatile__ ("gettr tr2, %0" : "=r" (regs->tregs[2]));
+		__asm__ __volatile__ ("gettr tr3, %0" : "=r" (regs->tregs[3]));
+		__asm__ __volatile__ ("gettr tr4, %0" : "=r" (regs->tregs[4]));
+		__asm__ __volatile__ ("gettr tr5, %0" : "=r" (regs->tregs[5]));
+		__asm__ __volatile__ ("gettr tr6, %0" : "=r" (regs->tregs[6]));
+		__asm__ __volatile__ ("gettr tr7, %0" : "=r" (regs->tregs[7]));
+
+		__asm__ __volatile__ (
+			"pta 0f, tr0\n\t"
+			"blink tr0, %0\n\t"
+			"0: nop"
+			: "=r" (regs->pc)
+		);
+	}
+
+	printk("\nCall Trace:\n");
+	sh64_unwind_inner(regs);
+}
+
diff --git a/arch/sh64/kernel/switchto.S b/arch/sh64/kernel/switchto.S
deleted file mode 100644
index 45b2d90eed7d..000000000000
--- a/arch/sh64/kernel/switchto.S
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * arch/sh64/kernel/switchto.S
- *
- * sh64 context switch
- *
- * Copyright (C) 2004  Richard Curnow
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
-*/
-
-	.section .text..SHmedia32,"ax"
-	.little
-
-	.balign 32
-
-	.type sh64_switch_to,@function
-	.global sh64_switch_to
-	.global __sh64_switch_to_end
-sh64_switch_to:
-
-/* Incoming args
-   r2 - prev
-   r3 - &prev->thread
-   r4 - next
-   r5 - &next->thread
-
-   Outgoing results
-   r2 - last (=prev) : this just stays in r2 throughout
-
-   Want to create a full (struct pt_regs) on the stack to allow backtracing
-   functions to work.  However, we only need to populate the callee-save
-   register slots in this structure; since we're a function our ancestors must
-   have themselves preserved all caller saved state in the stack.  This saves
-   some wasted effort since we won't need to look at the values.
-
-   In particular, all caller-save registers are immediately available for
-   scratch use.
-
-*/
-
-#define FRAME_SIZE (76*8 + 8)
-
-	movi	FRAME_SIZE, r0
-	sub.l	r15, r0, r15
-	! Do normal-style register save to support backtrace
-
-	st.l	r15,   0, r18	! save link reg
-	st.l	r15,   4, r14	! save fp
-	add.l	r15, r63, r14	! setup frame pointer
-
-	! hopefully this looks normal to the backtrace now.
-
-	addi.l	r15,   8, r1    ! base of pt_regs
-	addi.l	r1,   24, r0    ! base of pt_regs.regs
-	addi.l	r0, (63*8), r8	! base of pt_regs.trregs
-
-	/* Note : to be fixed?
-	   struct pt_regs is really designed for holding the state on entry
-	   to an exception, i.e. pc,sr,regs etc.  However, for the context
-	   switch state, some of this is not required.  But the unwinder takes
-	   struct pt_regs * as an arg so we have to build this structure
-	   to allow unwinding switched tasks in show_state() */
-
-	st.q	r0, ( 9*8), r9
-	st.q	r0, (10*8), r10
-	st.q	r0, (11*8), r11
-	st.q	r0, (12*8), r12
-	st.q	r0, (13*8), r13
-	st.q	r0, (14*8), r14 ! for unwind, want to look as though we took a trap at
-	! the point where the process is left in suspended animation, i.e. current
-	! fp here, not the saved one.
-	st.q	r0, (16*8), r16
-
-	st.q	r0, (24*8), r24
-	st.q	r0, (25*8), r25
-	st.q	r0, (26*8), r26
-	st.q	r0, (27*8), r27
-	st.q	r0, (28*8), r28
-	st.q	r0, (29*8), r29
-	st.q	r0, (30*8), r30
-	st.q	r0, (31*8), r31
-	st.q	r0, (32*8), r32
-	st.q	r0, (33*8), r33
-	st.q	r0, (34*8), r34
-	st.q	r0, (35*8), r35
-
-	st.q	r0, (44*8), r44
-	st.q	r0, (45*8), r45
-	st.q	r0, (46*8), r46
-	st.q	r0, (47*8), r47
-	st.q	r0, (48*8), r48
-	st.q	r0, (49*8), r49
-	st.q	r0, (50*8), r50
-	st.q	r0, (51*8), r51
-	st.q	r0, (52*8), r52
-	st.q	r0, (53*8), r53
-	st.q	r0, (54*8), r54
-	st.q	r0, (55*8), r55
-	st.q	r0, (56*8), r56
-	st.q	r0, (57*8), r57
-	st.q	r0, (58*8), r58
-	st.q	r0, (59*8), r59
-
-	! do this early as pta->gettr has no pipeline forwarding (=> 5 cycle latency)
-	! Use a local label to avoid creating a symbol that will confuse the !
-	! backtrace
-	pta	.Lsave_pc, tr0
-
-	gettr	tr5, r45
-	gettr	tr6, r46
-	gettr	tr7, r47
-	st.q	r8, (5*8), r45
-	st.q	r8, (6*8), r46
-	st.q	r8, (7*8), r47
-
-	! Now switch context
-	gettr	tr0, r9
-	st.l	r3, 0, r15	! prev->thread.sp
-	st.l	r3, 8, r1	! prev->thread.kregs
-	st.l	r3, 4, r9	! prev->thread.pc
-	st.q	r1, 0, r9	! save prev->thread.pc into pt_regs->pc
-
-	! Load PC for next task (init value or save_pc later)
-	ld.l	r5, 4, r18	! next->thread.pc
-	! Switch stacks
-	ld.l	r5, 0, r15	! next->thread.sp
-	ptabs	r18, tr0
-
-	! Update current
-	ld.l	r4, 4, r9	! next->thread_info (2nd element of next task_struct)
-	putcon	r9, kcr0	! current = next->thread_info
-
-	! go to save_pc for a reschedule, or the initial thread.pc for a new process
-	blink	tr0, r63
-
-	! Restore (when we come back to a previously saved task)
-.Lsave_pc:
-	addi.l	r15, 32, r0	! r0 = next's regs
-	addi.l	r0, (63*8), r8	! r8 = next's tr_regs
-
-	ld.q	r8, (5*8), r45
-	ld.q	r8, (6*8), r46
-	ld.q	r8, (7*8), r47
-	ptabs	r45, tr5
-	ptabs	r46, tr6
-	ptabs	r47, tr7
-
-	ld.q	r0, ( 9*8), r9
-	ld.q	r0, (10*8), r10
-	ld.q	r0, (11*8), r11
-	ld.q	r0, (12*8), r12
-	ld.q	r0, (13*8), r13
-	ld.q	r0, (14*8), r14
-	ld.q	r0, (16*8), r16
-
-	ld.q	r0, (24*8), r24
-	ld.q	r0, (25*8), r25
-	ld.q	r0, (26*8), r26
-	ld.q	r0, (27*8), r27
-	ld.q	r0, (28*8), r28
-	ld.q	r0, (29*8), r29
-	ld.q	r0, (30*8), r30
-	ld.q	r0, (31*8), r31
-	ld.q	r0, (32*8), r32
-	ld.q	r0, (33*8), r33
-	ld.q	r0, (34*8), r34
-	ld.q	r0, (35*8), r35
-
-	ld.q	r0, (44*8), r44
-	ld.q	r0, (45*8), r45
-	ld.q	r0, (46*8), r46
-	ld.q	r0, (47*8), r47
-	ld.q	r0, (48*8), r48
-	ld.q	r0, (49*8), r49
-	ld.q	r0, (50*8), r50
-	ld.q	r0, (51*8), r51
-	ld.q	r0, (52*8), r52
-	ld.q	r0, (53*8), r53
-	ld.q	r0, (54*8), r54
-	ld.q	r0, (55*8), r55
-	ld.q	r0, (56*8), r56
-	ld.q	r0, (57*8), r57
-	ld.q	r0, (58*8), r58
-	ld.q	r0, (59*8), r59
-
-	! epilogue
-	ld.l	r15, 0, r18
-	ld.l	r15, 4, r14
-	ptabs	r18, tr0
-	movi	FRAME_SIZE, r0
-	add	r15, r0, r15
-	blink	tr0, r63
-__sh64_switch_to_end:
-.LFE1:
-	.size	sh64_switch_to,.LFE1-sh64_switch_to
-
diff --git a/arch/sh64/kernel/unwind.c b/arch/sh64/kernel/unwind.c
deleted file mode 100644
index 1214c78e3584..000000000000
--- a/arch/sh64/kernel/unwind.c
+++ /dev/null
@@ -1,326 +0,0 @@
-/*
- * arch/sh64/kernel/unwind.c
- *
- * Copyright (C) 2004  Paul Mundt
- * Copyright (C) 2004  Richard Curnow
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/kallsyms.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <asm/page.h>
-#include <asm/ptrace.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-
-static u8 regcache[63];
-
-/*
- * Finding the previous stack frame isn't horribly straightforward as it is
- * on some other platforms. In the sh64 case, we don't have "linked" stack
- * frames, so we need to do a bit of work to determine the previous frame,
- * and in turn, the previous r14/r18 pair.
- *
- * There are generally a few cases which determine where we can find out
- * the r14/r18 values. In the general case, this can be determined by poking
- * around the prologue of the symbol PC is in (note that we absolutely must
- * have frame pointer support as well as the kernel symbol table mapped,
- * otherwise we can't even get this far).
- *
- * In other cases, such as the interrupt/exception path, we can poke around
- * the sp/fp.
- *
- * Notably, this entire approach is somewhat error prone, and in the event
- * that the previous frame cannot be determined, that's all we can do.
- * Either way, this still leaves us with a more correct backtrace then what
- * we would be able to come up with by walking the stack (which is garbage
- * for anything beyond the first frame).
- *						-- PFM.
- */
-static int lookup_prev_stack_frame(unsigned long fp, unsigned long pc,
-		      unsigned long *pprev_fp, unsigned long *pprev_pc,
-		      struct pt_regs *regs)
-{
-	const char *sym;
-	char namebuf[128];
-	unsigned long offset;
-	unsigned long prologue = 0;
-	unsigned long fp_displacement = 0;
-	unsigned long fp_prev = 0;
-	unsigned long offset_r14 = 0, offset_r18 = 0;
-	int i, found_prologue_end = 0;
-
-	sym = kallsyms_lookup(pc, NULL, &offset, NULL, namebuf);
-	if (!sym)
-		return -EINVAL;
-
-	prologue = pc - offset;
-	if (!prologue)
-		return -EINVAL;
-
-	/* Validate fp, to avoid risk of dereferencing a bad pointer later.
-	   Assume 128Mb since that's the amount of RAM on a Cayman.  Modify
-	   when there is an SH-5 board with more. */
-	if ((fp < (unsigned long) phys_to_virt(__MEMORY_START)) ||
-	    (fp >= (unsigned long)(phys_to_virt(__MEMORY_START)) + 128*1024*1024) ||
-	    ((fp & 7) != 0)) {
-		return -EINVAL;
-	}
-
-	/*
-	 * Depth to walk, depth is completely arbitrary.
-	 */
-	for (i = 0; i < 100; i++, prologue += sizeof(unsigned long)) {
-		unsigned long op;
-		u8 major, minor;
-		u8 src, dest, disp;
-
-		op = *(unsigned long *)prologue;
-
-		major = (op >> 26) & 0x3f;
-		src   = (op >> 20) & 0x3f;
-		minor = (op >> 16) & 0xf;
-		disp  = (op >> 10) & 0x3f;
-		dest  = (op >>  4) & 0x3f;
-
-		/*
-		 * Stack frame creation happens in a number of ways.. in the
-		 * general case when the stack frame is less than 511 bytes,
-		 * it's generally created by an addi or addi.l:
-		 *
-		 *	addi/addi.l r15, -FRAME_SIZE, r15
-		 *
-		 * in the event that the frame size is bigger than this, it's
-		 * typically created using a movi/sub pair as follows:
-		 *
-		 *	movi	FRAME_SIZE, rX
-		 *	sub	r15, rX, r15
-		 */
-
-		switch (major) {
-		case (0x00 >> 2):
-			switch (minor) {
-			case 0x8: /* add.l */
-			case 0x9: /* add */
-				/* Look for r15, r63, r14 */
-				if (src == 15 && disp == 63 && dest == 14)
-					found_prologue_end = 1;
-
-				break;
-			case 0xa: /* sub.l */
-			case 0xb: /* sub */
-				if (src != 15 || dest != 15)
-					continue;
-
-				fp_displacement -= regcache[disp];
-				fp_prev = fp - fp_displacement;
-				break;
-			}
-			break;
-		case (0xa8 >> 2): /* st.l */
-			if (src != 15)
-				continue;
-
-			switch (dest) {
-			case 14:
-				if (offset_r14 || fp_displacement == 0)
-					continue;
-
-				offset_r14 = (u64)(((((s64)op >> 10) & 0x3ff) << 54) >> 54);
-				offset_r14 *= sizeof(unsigned long);
-				offset_r14 += fp_displacement;
-				break;
-			case 18:
-				if (offset_r18 || fp_displacement == 0)
-					continue;
-
-				offset_r18 = (u64)(((((s64)op >> 10) & 0x3ff) << 54) >> 54);
-				offset_r18 *= sizeof(unsigned long);
-				offset_r18 += fp_displacement;
-				break;
-			}
-
-			break;
-		case (0xcc >> 2): /* movi */
-			if (dest >= 63) {
-				printk(KERN_NOTICE "%s: Invalid dest reg %d "
-				       "specified in movi handler. Failed "
-				       "opcode was 0x%lx: ", __FUNCTION__,
-				       dest, op);
-
-				continue;
-			}
-
-			/* Sign extend */
-			regcache[dest] =
-				((((s64)(u64)op >> 10) & 0xffff) << 54) >> 54;
-			break;
-		case (0xd0 >> 2): /* addi */
-		case (0xd4 >> 2): /* addi.l */
-			/* Look for r15, -FRAME_SIZE, r15 */
-			if (src != 15 || dest != 15)
-				continue;
-
-			/* Sign extended frame size.. */
-			fp_displacement +=
-				(u64)(((((s64)op >> 10) & 0x3ff) << 54) >> 54);
-			fp_prev = fp - fp_displacement;
-			break;
-		}
-
-		if (found_prologue_end && offset_r14 && (offset_r18 || *pprev_pc) && fp_prev)
-			break;
-	}
-
-	if (offset_r14 == 0 || fp_prev == 0) {
-		if (!offset_r14)
-			pr_debug("Unable to find r14 offset\n");
-		if (!fp_prev)
-			pr_debug("Unable to find previous fp\n");
-
-		return -EINVAL;
-	}
-
-	/* For innermost leaf function, there might not be a offset_r18 */
-	if (!*pprev_pc && (offset_r18 == 0))
-		return -EINVAL;
-
-	*pprev_fp = *(unsigned long *)(fp_prev + offset_r14);
-
-	if (offset_r18)
-		*pprev_pc = *(unsigned long *)(fp_prev + offset_r18);
-
-	*pprev_pc &= ~1;
-
-	return 0;
-}
-
-/* Don't put this on the stack since we'll want to call sh64_unwind
- * when we're close to underflowing the stack anyway. */
-static struct pt_regs here_regs;
-
-extern const char syscall_ret;
-extern const char ret_from_syscall;
-extern const char ret_from_exception;
-extern const char ret_from_irq;
-
-static void sh64_unwind_inner(struct pt_regs *regs);
-
-static void unwind_nested (unsigned long pc, unsigned long fp)
-{
-	if ((fp >= __MEMORY_START) &&
-	    ((fp & 7) == 0)) {
-		sh64_unwind_inner((struct pt_regs *) fp);
-	}
-}
-
-static void sh64_unwind_inner(struct pt_regs *regs)
-{
-	unsigned long pc, fp;
-	int ofs = 0;
-	int first_pass;
-
-	pc = regs->pc & ~1;
-	fp = regs->regs[14];
-
-	first_pass = 1;
-	for (;;) {
-		int cond;
-		unsigned long next_fp, next_pc;
-
-		if (pc == ((unsigned long) &syscall_ret & ~1)) {
-			printk("SYSCALL\n");
-			unwind_nested(pc,fp);
-			return;
-		}
-
-		if (pc == ((unsigned long) &ret_from_syscall & ~1)) {
-			printk("SYSCALL (PREEMPTED)\n");
-			unwind_nested(pc,fp);
-			return;
-		}
-
-		/* In this case, the PC is discovered by lookup_prev_stack_frame but
-		   it has 4 taken off it to look like the 'caller' */
-		if (pc == ((unsigned long) &ret_from_exception & ~1)) {
-			printk("EXCEPTION\n");
-			unwind_nested(pc,fp);
-			return;
-		}
-
-		if (pc == ((unsigned long) &ret_from_irq & ~1)) {
-			printk("IRQ\n");
-			unwind_nested(pc,fp);
-			return;
-		}
-
-		cond = ((pc >= __MEMORY_START) && (fp >= __MEMORY_START) &&
-			((pc & 3) == 0) && ((fp & 7) == 0));
-
-		pc -= ofs;
-
-		printk("[<%08lx>] ", pc);
-		print_symbol("%s\n", pc);
-
-		if (first_pass) {
-			/* If the innermost frame is a leaf function, it's
-			 * possible that r18 is never saved out to the stack.
-			 */
-			next_pc = regs->regs[18];
-		} else {
-			next_pc = 0;
-		}
-
-		if (lookup_prev_stack_frame(fp, pc, &next_fp, &next_pc, regs) == 0) {
-			ofs = sizeof(unsigned long);
-			pc = next_pc & ~1;
-			fp = next_fp;
-		} else {
-			printk("Unable to lookup previous stack frame\n");
-			break;
-		}
-		first_pass = 0;
-	}
-
-	printk("\n");
-
-}
-
-void sh64_unwind(struct pt_regs *regs)
-{
-	if (!regs) {
-		/*
-		 * Fetch current regs if we have no other saved state to back
-		 * trace from.
-		 */
-		regs = &here_regs;
-
-		__asm__ __volatile__ ("ori r14, 0, %0" : "=r" (regs->regs[14]));
-		__asm__ __volatile__ ("ori r15, 0, %0" : "=r" (regs->regs[15]));
-		__asm__ __volatile__ ("ori r18, 0, %0" : "=r" (regs->regs[18]));
-
-		__asm__ __volatile__ ("gettr tr0, %0" : "=r" (regs->tregs[0]));
-		__asm__ __volatile__ ("gettr tr1, %0" : "=r" (regs->tregs[1]));
-		__asm__ __volatile__ ("gettr tr2, %0" : "=r" (regs->tregs[2]));
-		__asm__ __volatile__ ("gettr tr3, %0" : "=r" (regs->tregs[3]));
-		__asm__ __volatile__ ("gettr tr4, %0" : "=r" (regs->tregs[4]));
-		__asm__ __volatile__ ("gettr tr5, %0" : "=r" (regs->tregs[5]));
-		__asm__ __volatile__ ("gettr tr6, %0" : "=r" (regs->tregs[6]));
-		__asm__ __volatile__ ("gettr tr7, %0" : "=r" (regs->tregs[7]));
-
-		__asm__ __volatile__ (
-			"pta 0f, tr0\n\t"
-			"blink tr0, %0\n\t"
-			"0: nop"
-			: "=r" (regs->pc)
-		);
-	}
-
-	printk("\nCall Trace:\n");
-	sh64_unwind_inner(regs);
-}
-
-- 
cgit v1.2.3-59-g8ed1b


From bba89e1f403b3313b429b736bd6536b921bbc83a Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 19 Nov 2007 19:07:51 +0900
Subject: sh: Provide dummy swapper pt_regs for SH-5 ctx switch.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/init_task.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/init_task.c b/arch/sh/kernel/init_task.c
index 4b449c4a6bad..f9bcc606127e 100644
--- a/arch/sh/kernel/init_task.c
+++ b/arch/sh/kernel/init_task.c
@@ -11,8 +11,8 @@ static struct fs_struct init_fs = INIT_FS;
 static struct files_struct init_files = INIT_FILES;
 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
+struct pt_regs fake_swapper_regs;
 struct mm_struct init_mm = INIT_MM(init_mm);
-
 EXPORT_SYMBOL(init_mm);
 
 /*
@@ -22,7 +22,7 @@ EXPORT_SYMBOL(init_mm);
  * way process stacks are handled. This is done by having a special
  * "init_task" linker map entry..
  */
-union thread_union init_thread_union 
+union thread_union init_thread_union
 	__attribute__((__section__(".data.init_task"))) =
 		{ INIT_THREAD_INFO(init_task) };
 
-- 
cgit v1.2.3-59-g8ed1b


From 061854fd155116ab1f40c39a75e2c641827fd246 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 19 Nov 2007 19:08:49 +0900
Subject: sh: Common swapper_pg_dir usage for SH-5.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/head_64.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/head_64.S b/arch/sh/kernel/head_64.S
index 8015af6d1da2..55ae281893f8 100644
--- a/arch/sh/kernel/head_64.S
+++ b/arch/sh/kernel/head_64.S
@@ -105,8 +105,8 @@ empty_zero_page:
 	.section	.data, "aw"
 	.balign	PAGE_SIZE
 
-	.global swapper_pg_dir
-swapper_pg_dir:
+	.global mmu_pdtp_cache
+mmu_pdtp_cache:
 	.space PAGE_SIZE, 0
 
 	.global empty_bad_page
-- 
cgit v1.2.3-59-g8ed1b


From 600ee240d15e535d51e6c2b2f8475f0aa42885ea Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 19 Nov 2007 19:13:38 +0900
Subject: sh: Move over and enable FPU support for SH-5.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig.sh64            |   1 +
 arch/sh/kernel/cpu/sh5/Makefile |   1 +
 arch/sh/kernel/cpu/sh5/fpu.c    | 170 ++++++++++++++++++++++++++++++++++++++++
 arch/sh/kernel/process_64.c     |   8 +-
 arch/sh/kernel/signal_64.c      |   4 +-
 arch/sh64/kernel/fpu.c          | 170 ----------------------------------------
 6 files changed, 178 insertions(+), 176 deletions(-)
 create mode 100644 arch/sh/kernel/cpu/sh5/fpu.c
 delete mode 100644 arch/sh64/kernel/fpu.c

(limited to 'arch')

diff --git a/arch/sh/Kconfig.sh64 b/arch/sh/Kconfig.sh64
index 10f5d30d3184..e37cd8c51e34 100644
--- a/arch/sh/Kconfig.sh64
+++ b/arch/sh/Kconfig.sh64
@@ -83,6 +83,7 @@ choice
 
 config CPU_SH5
 	bool "SH-5"
+	select CPU_HAS_FPU
 
 endchoice
 
diff --git a/arch/sh/kernel/cpu/sh5/Makefile b/arch/sh/kernel/cpu/sh5/Makefile
index 7ea10732b5cc..6d388e8d8991 100644
--- a/arch/sh/kernel/cpu/sh5/Makefile
+++ b/arch/sh/kernel/cpu/sh5/Makefile
@@ -1,3 +1,4 @@
 obj-y := entry.o switchto.o
 
 obj-$(CONFIG_KALLSYMS)		+= unwind.o
+obj-$(CONFIG_SH_FPU)		+= fpu.o
diff --git a/arch/sh/kernel/cpu/sh5/fpu.c b/arch/sh/kernel/cpu/sh5/fpu.c
new file mode 100644
index 000000000000..d3f5e7468dfe
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh5/fpu.c
@@ -0,0 +1,170 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/kernel/fpu.c
+ *
+ * Copyright (C) 2001  Manuela Cirronis, Paolo Alberelli
+ * Copyright (C) 2002  STMicroelectronics Limited
+ *   Author : Stuart Menefy
+ *
+ * Started from SH4 version:
+ *   Copyright (C) 1999, 2000  Kaz Kojima & Niibe Yutaka
+ *
+ */
+
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <asm/processor.h>
+#include <asm/user.h>
+#include <asm/io.h>
+
+/*
+ * Initially load the FPU with signalling NANS.  This bit pattern
+ * has the property that no matter whether considered as single or as
+ * double precision, it still represents a signalling NAN.
+ */
+#define sNAN64		0xFFFFFFFFFFFFFFFFULL
+#define sNAN32		0xFFFFFFFFUL
+
+static union sh_fpu_union init_fpuregs = {
+	.hard = {
+	  .fp_regs = { [0 ... 63] = sNAN32 },
+	  .fpscr = FPSCR_INIT
+	}
+};
+
+inline void fpsave(struct sh_fpu_hard_struct *fpregs)
+{
+	asm volatile("fst.p     %0, (0*8), fp0\n\t"
+		     "fst.p     %0, (1*8), fp2\n\t"
+		     "fst.p     %0, (2*8), fp4\n\t"
+		     "fst.p     %0, (3*8), fp6\n\t"
+		     "fst.p     %0, (4*8), fp8\n\t"
+		     "fst.p     %0, (5*8), fp10\n\t"
+		     "fst.p     %0, (6*8), fp12\n\t"
+		     "fst.p     %0, (7*8), fp14\n\t"
+		     "fst.p     %0, (8*8), fp16\n\t"
+		     "fst.p     %0, (9*8), fp18\n\t"
+		     "fst.p     %0, (10*8), fp20\n\t"
+		     "fst.p     %0, (11*8), fp22\n\t"
+		     "fst.p     %0, (12*8), fp24\n\t"
+		     "fst.p     %0, (13*8), fp26\n\t"
+		     "fst.p     %0, (14*8), fp28\n\t"
+		     "fst.p     %0, (15*8), fp30\n\t"
+		     "fst.p     %0, (16*8), fp32\n\t"
+		     "fst.p     %0, (17*8), fp34\n\t"
+		     "fst.p     %0, (18*8), fp36\n\t"
+		     "fst.p     %0, (19*8), fp38\n\t"
+		     "fst.p     %0, (20*8), fp40\n\t"
+		     "fst.p     %0, (21*8), fp42\n\t"
+		     "fst.p     %0, (22*8), fp44\n\t"
+		     "fst.p     %0, (23*8), fp46\n\t"
+		     "fst.p     %0, (24*8), fp48\n\t"
+		     "fst.p     %0, (25*8), fp50\n\t"
+		     "fst.p     %0, (26*8), fp52\n\t"
+		     "fst.p     %0, (27*8), fp54\n\t"
+		     "fst.p     %0, (28*8), fp56\n\t"
+		     "fst.p     %0, (29*8), fp58\n\t"
+		     "fst.p     %0, (30*8), fp60\n\t"
+		     "fst.p     %0, (31*8), fp62\n\t"
+
+		     "fgetscr   fr63\n\t"
+		     "fst.s     %0, (32*8), fr63\n\t"
+		: /* no output */
+		: "r" (fpregs)
+		: "memory");
+}
+
+
+static inline void
+fpload(struct sh_fpu_hard_struct *fpregs)
+{
+	asm volatile("fld.p     %0, (0*8), fp0\n\t"
+		     "fld.p     %0, (1*8), fp2\n\t"
+		     "fld.p     %0, (2*8), fp4\n\t"
+		     "fld.p     %0, (3*8), fp6\n\t"
+		     "fld.p     %0, (4*8), fp8\n\t"
+		     "fld.p     %0, (5*8), fp10\n\t"
+		     "fld.p     %0, (6*8), fp12\n\t"
+		     "fld.p     %0, (7*8), fp14\n\t"
+		     "fld.p     %0, (8*8), fp16\n\t"
+		     "fld.p     %0, (9*8), fp18\n\t"
+		     "fld.p     %0, (10*8), fp20\n\t"
+		     "fld.p     %0, (11*8), fp22\n\t"
+		     "fld.p     %0, (12*8), fp24\n\t"
+		     "fld.p     %0, (13*8), fp26\n\t"
+		     "fld.p     %0, (14*8), fp28\n\t"
+		     "fld.p     %0, (15*8), fp30\n\t"
+		     "fld.p     %0, (16*8), fp32\n\t"
+		     "fld.p     %0, (17*8), fp34\n\t"
+		     "fld.p     %0, (18*8), fp36\n\t"
+		     "fld.p     %0, (19*8), fp38\n\t"
+		     "fld.p     %0, (20*8), fp40\n\t"
+		     "fld.p     %0, (21*8), fp42\n\t"
+		     "fld.p     %0, (22*8), fp44\n\t"
+		     "fld.p     %0, (23*8), fp46\n\t"
+		     "fld.p     %0, (24*8), fp48\n\t"
+		     "fld.p     %0, (25*8), fp50\n\t"
+		     "fld.p     %0, (26*8), fp52\n\t"
+		     "fld.p     %0, (27*8), fp54\n\t"
+		     "fld.p     %0, (28*8), fp56\n\t"
+		     "fld.p     %0, (29*8), fp58\n\t"
+		     "fld.p     %0, (30*8), fp60\n\t"
+
+		     "fld.s     %0, (32*8), fr63\n\t"
+		     "fputscr   fr63\n\t"
+
+		     "fld.p     %0, (31*8), fp62\n\t"
+		: /* no output */
+		: "r" (fpregs) );
+}
+
+void fpinit(struct sh_fpu_hard_struct *fpregs)
+{
+	*fpregs = init_fpuregs.hard;
+}
+
+asmlinkage void
+do_fpu_error(unsigned long ex, struct pt_regs *regs)
+{
+	struct task_struct *tsk = current;
+
+	regs->pc += 4;
+
+	tsk->thread.trap_no = 11;
+	tsk->thread.error_code = 0;
+	force_sig(SIGFPE, tsk);
+}
+
+
+asmlinkage void
+do_fpu_state_restore(unsigned long ex, struct pt_regs *regs)
+{
+	void die(const char *str, struct pt_regs *regs, long err);
+
+	if (! user_mode(regs))
+		die("FPU used in kernel", regs, ex);
+
+	regs->sr &= ~SR_FD;
+
+	if (last_task_used_math == current)
+		return;
+
+	enable_fpu();
+	if (last_task_used_math != NULL) {
+		/* Other processes fpu state, save away */
+		fpsave(&last_task_used_math->thread.fpu.hard);
+        }
+        last_task_used_math = current;
+        if (used_math()) {
+                fpload(&current->thread.fpu.hard);
+        } else {
+		/* First time FPU user.  */
+		fpload(&init_fpuregs.hard);
+                set_used_math();
+        }
+	disable_fpu();
+}
+
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index 0761af4d2a42..0c2bc61b66b3 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -469,9 +469,9 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
 	fpvalid = !!tsk_used_math(tsk);
 	if (fpvalid) {
 		if (current == last_task_used_math) {
-			grab_fpu();
+			enable_fpu();
 			fpsave(&tsk->thread.fpu.hard);
-			release_fpu();
+			disable_fpu();
 			last_task_used_math = 0;
 			regs->sr |= SR_FD;
 		}
@@ -496,9 +496,9 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 
 #ifdef CONFIG_SH_FPU
 	if(last_task_used_math == current) {
-		grab_fpu();
+		enable_fpu();
 		fpsave(&current->thread.fpu.hard);
-		release_fpu();
+		disable_fpu();
 		last_task_used_math = NULL;
 		regs->sr |= SR_FD;
 	}
diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c
index 069fb6083646..08f403e23662 100644
--- a/arch/sh/kernel/signal_64.c
+++ b/arch/sh/kernel/signal_64.c
@@ -211,9 +211,9 @@ setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
 		return err;
 
 	if (current == last_task_used_math) {
-		grab_fpu();
+		enable_fpu();
 		fpsave(&current->thread.fpu.hard);
-		release_fpu();
+		disable_fpu();
 		last_task_used_math = NULL;
 		regs->sr |= SR_FD;
 	}
diff --git a/arch/sh64/kernel/fpu.c b/arch/sh64/kernel/fpu.c
deleted file mode 100644
index 8ad4ed6a6c9b..000000000000
--- a/arch/sh64/kernel/fpu.c
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/fpu.c
- *
- * Copyright (C) 2001  Manuela Cirronis, Paolo Alberelli
- * Copyright (C) 2002  STMicroelectronics Limited
- *   Author : Stuart Menefy
- *
- * Started from SH4 version:
- *   Copyright (C) 1999, 2000  Kaz Kojima & Niibe Yutaka
- *
- */
-
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <asm/processor.h>
-#include <asm/user.h>
-#include <asm/io.h>
-
-/*
- * Initially load the FPU with signalling NANS.  This bit pattern
- * has the property that no matter whether considered as single or as
- * double precision, it still represents a signalling NAN.
- */
-#define sNAN64		0xFFFFFFFFFFFFFFFFULL
-#define sNAN32		0xFFFFFFFFUL
-
-static union sh_fpu_union init_fpuregs = {
-	.hard = {
-	  .fp_regs = { [0 ... 63] = sNAN32 },
-	  .fpscr = FPSCR_INIT
-	}
-};
-
-inline void fpsave(struct sh_fpu_hard_struct *fpregs)
-{
-	asm volatile("fst.p     %0, (0*8), fp0\n\t"
-		     "fst.p     %0, (1*8), fp2\n\t"
-		     "fst.p     %0, (2*8), fp4\n\t"
-		     "fst.p     %0, (3*8), fp6\n\t"
-		     "fst.p     %0, (4*8), fp8\n\t"
-		     "fst.p     %0, (5*8), fp10\n\t"
-		     "fst.p     %0, (6*8), fp12\n\t"
-		     "fst.p     %0, (7*8), fp14\n\t"
-		     "fst.p     %0, (8*8), fp16\n\t"
-		     "fst.p     %0, (9*8), fp18\n\t"
-		     "fst.p     %0, (10*8), fp20\n\t"
-		     "fst.p     %0, (11*8), fp22\n\t"
-		     "fst.p     %0, (12*8), fp24\n\t"
-		     "fst.p     %0, (13*8), fp26\n\t"
-		     "fst.p     %0, (14*8), fp28\n\t"
-		     "fst.p     %0, (15*8), fp30\n\t"
-		     "fst.p     %0, (16*8), fp32\n\t"
-		     "fst.p     %0, (17*8), fp34\n\t"
-		     "fst.p     %0, (18*8), fp36\n\t"
-		     "fst.p     %0, (19*8), fp38\n\t"
-		     "fst.p     %0, (20*8), fp40\n\t"
-		     "fst.p     %0, (21*8), fp42\n\t"
-		     "fst.p     %0, (22*8), fp44\n\t"
-		     "fst.p     %0, (23*8), fp46\n\t"
-		     "fst.p     %0, (24*8), fp48\n\t"
-		     "fst.p     %0, (25*8), fp50\n\t"
-		     "fst.p     %0, (26*8), fp52\n\t"
-		     "fst.p     %0, (27*8), fp54\n\t"
-		     "fst.p     %0, (28*8), fp56\n\t"
-		     "fst.p     %0, (29*8), fp58\n\t"
-		     "fst.p     %0, (30*8), fp60\n\t"
-		     "fst.p     %0, (31*8), fp62\n\t"
-
-		     "fgetscr   fr63\n\t"
-		     "fst.s     %0, (32*8), fr63\n\t"
-		: /* no output */
-		: "r" (fpregs)
-		: "memory");
-}
-
-
-static inline void
-fpload(struct sh_fpu_hard_struct *fpregs)
-{
-	asm volatile("fld.p     %0, (0*8), fp0\n\t"
-		     "fld.p     %0, (1*8), fp2\n\t"
-		     "fld.p     %0, (2*8), fp4\n\t"
-		     "fld.p     %0, (3*8), fp6\n\t"
-		     "fld.p     %0, (4*8), fp8\n\t"
-		     "fld.p     %0, (5*8), fp10\n\t"
-		     "fld.p     %0, (6*8), fp12\n\t"
-		     "fld.p     %0, (7*8), fp14\n\t"
-		     "fld.p     %0, (8*8), fp16\n\t"
-		     "fld.p     %0, (9*8), fp18\n\t"
-		     "fld.p     %0, (10*8), fp20\n\t"
-		     "fld.p     %0, (11*8), fp22\n\t"
-		     "fld.p     %0, (12*8), fp24\n\t"
-		     "fld.p     %0, (13*8), fp26\n\t"
-		     "fld.p     %0, (14*8), fp28\n\t"
-		     "fld.p     %0, (15*8), fp30\n\t"
-		     "fld.p     %0, (16*8), fp32\n\t"
-		     "fld.p     %0, (17*8), fp34\n\t"
-		     "fld.p     %0, (18*8), fp36\n\t"
-		     "fld.p     %0, (19*8), fp38\n\t"
-		     "fld.p     %0, (20*8), fp40\n\t"
-		     "fld.p     %0, (21*8), fp42\n\t"
-		     "fld.p     %0, (22*8), fp44\n\t"
-		     "fld.p     %0, (23*8), fp46\n\t"
-		     "fld.p     %0, (24*8), fp48\n\t"
-		     "fld.p     %0, (25*8), fp50\n\t"
-		     "fld.p     %0, (26*8), fp52\n\t"
-		     "fld.p     %0, (27*8), fp54\n\t"
-		     "fld.p     %0, (28*8), fp56\n\t"
-		     "fld.p     %0, (29*8), fp58\n\t"
-		     "fld.p     %0, (30*8), fp60\n\t"
-
-		     "fld.s     %0, (32*8), fr63\n\t"
-		     "fputscr   fr63\n\t"
-
-		     "fld.p     %0, (31*8), fp62\n\t"
-		: /* no output */
-		: "r" (fpregs) );
-}
-
-void fpinit(struct sh_fpu_hard_struct *fpregs)
-{
-	*fpregs = init_fpuregs.hard;
-}
-
-asmlinkage void
-do_fpu_error(unsigned long ex, struct pt_regs *regs)
-{
-	struct task_struct *tsk = current;
-
-	regs->pc += 4;
-
-	tsk->thread.trap_no = 11;
-	tsk->thread.error_code = 0;
-	force_sig(SIGFPE, tsk);
-}
-
-
-asmlinkage void
-do_fpu_state_restore(unsigned long ex, struct pt_regs *regs)
-{
-	void die(const char *str, struct pt_regs *regs, long err);
-
-	if (! user_mode(regs))
-		die("FPU used in kernel", regs, ex);
-
-	regs->sr &= ~SR_FD;
-
-	if (last_task_used_math == current)
-		return;
-
-	grab_fpu();
-	if (last_task_used_math != NULL) {
-		/* Other processes fpu state, save away */
-		fpsave(&last_task_used_math->thread.fpu.hard);
-        }
-        last_task_used_math = current;
-        if (used_math()) {
-                fpload(&current->thread.fpu.hard);
-        } else {
-		/* First time FPU user.  */
-		fpload(&init_fpuregs.hard);
-                set_used_math();
-        }
-	release_fpu();
-}
-
-- 
cgit v1.2.3-59-g8ed1b


From 99432700cf2f28976191ab546deffc0007ef4eb7 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 14:49:36 +0900
Subject: sh: Tidy up lib64 udelay impl.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/lib64/udelay.c | 7 ++-----
 include/asm-sh/delay.h | 8 ++++++--
 2 files changed, 8 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/lib64/udelay.c b/arch/sh/lib64/udelay.c
index 327653914007..4c71a7428e60 100644
--- a/arch/sh/lib64/udelay.c
+++ b/arch/sh/lib64/udelay.c
@@ -13,8 +13,6 @@
 #include <linux/sched.h>
 #include <asm/param.h>
 
-extern unsigned long loops_per_jiffy;
-
 /*
  * Use only for very small delays (< 1 msec).
  *
@@ -49,11 +47,10 @@ void __ndelay(unsigned long long nsecs, unsigned long lpj)
 
 void udelay(unsigned long usecs)
 {
-	__udelay(usecs, loops_per_jiffy);
+	__udelay(usecs, cpu_data[raw_smp_processor_id()].loops_per_jiffy);
 }
 
 void ndelay(unsigned long nsecs)
 {
-	__ndelay(nsecs, loops_per_jiffy);
+	__ndelay(nsecs, cpu_data[raw_smp_processor_id()].loops_per_jiffy);
 }
-
diff --git a/include/asm-sh/delay.h b/include/asm-sh/delay.h
index db599b2a5a9c..031db84f2aa1 100644
--- a/include/asm-sh/delay.h
+++ b/include/asm-sh/delay.h
@@ -6,7 +6,7 @@
  *
  * Delay routines calling functions in arch/sh/lib/delay.c
  */
- 
+
 extern void __bad_udelay(void);
 extern void __bad_ndelay(void);
 
@@ -15,13 +15,17 @@ extern void __ndelay(unsigned long nsecs);
 extern void __const_udelay(unsigned long usecs);
 extern void __delay(unsigned long loops);
 
+#ifdef CONFIG_SUPERH32
 #define udelay(n) (__builtin_constant_p(n) ? \
 	((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
 	__udelay(n))
 
-
 #define ndelay(n) (__builtin_constant_p(n) ? \
 	((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
 	__ndelay(n))
+#else
+extern void udelay(unsigned long usecs);
+extern void ndelay(unsigned long nsecs);
+#endif
 
 #endif /* __ASM_SH_DELAY_H */
-- 
cgit v1.2.3-59-g8ed1b


From ba2727b556778f8af7cf08956d84723930a83965 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 15:14:48 +0900
Subject: sh: ioremap_64 needs after_bootmem.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/init.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch')

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index d5e160da64b2..5d19c8c7ab53 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -170,6 +170,7 @@ void __init paging_init(void)
 }
 
 static struct kcore_list kcore_mem, kcore_vmalloc;
+int after_bootmem = 0;
 
 void __init mem_init(void)
 {
@@ -214,6 +215,8 @@ void __init mem_init(void)
 	clear_page = clear_page_nommu;
 #endif
 
+	after_bootmem = 1;
+
 	codesize =  (unsigned long) &_etext - (unsigned long) &_text;
 	datasize =  (unsigned long) &_edata - (unsigned long) &_etext;
 	initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;
-- 
cgit v1.2.3-59-g8ed1b


From 1cb80fcfe2beafc55610ebd1cd4a03331d65f8ba Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 15:16:25 +0900
Subject: sh: Merge sh and sh64 module.c.

This is trivial, in that they're both effectively the same for the base
relocations anyways. SH-5 doesn't need the unaligned bits, and has a
few extra relocations, which are never hit on non-SH5 parts.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/module.c   |  62 ++++++++++++++----
 arch/sh64/kernel/module.c | 161 ----------------------------------------------
 2 files changed, 49 insertions(+), 174 deletions(-)
 delete mode 100644 arch/sh64/kernel/module.c

(limited to 'arch')

diff --git a/arch/sh/kernel/module.c b/arch/sh/kernel/module.c
index 142a4e5b7ebc..b3d0a03b4c76 100644
--- a/arch/sh/kernel/module.c
+++ b/arch/sh/kernel/module.c
@@ -1,5 +1,15 @@
 /*  Kernel module help for SH.
 
+    SHcompact version by Kaz Kojima and Paul Mundt.
+
+    SHmedia bits:
+
+	Copyright 2004 SuperH (UK) Ltd
+	Author: Richard Curnow
+
+	Based on the sh version, and on code from the sh64-specific parts of
+	modutils, originally written by Richard Curnow and Ben Gaster.
+
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
@@ -21,12 +31,6 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(fmt...)
-#endif
-
 void *module_alloc(unsigned long size)
 {
 	if (size == 0)
@@ -52,6 +56,7 @@ int module_frob_arch_sections(Elf_Ehdr *hdr,
 	return 0;
 }
 
+#ifdef CONFIG_SUPERH32
 #define COPY_UNALIGNED_WORD(sw, tw, align) \
 { \
 	void *__s = &(sw), *__t = &(tw); \
@@ -74,6 +79,10 @@ int module_frob_arch_sections(Elf_Ehdr *hdr,
 		break; \
 	} \
 }
+#else
+/* One thing SHmedia doesn't screw up! */
+#define COPY_UNALIGNED_WORD(sw, tw, align)	{ (tw) = (sw); }
+#endif
 
 int apply_relocate_add(Elf32_Shdr *sechdrs,
 		   const char *strtab,
@@ -89,8 +98,8 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
 	uint32_t value;
 	int align;
 
-	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
+	pr_debug("Applying relocate section %u to %u\n", relsec,
+		 sechdrs[relsec].sh_info);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
 		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
@@ -102,17 +111,44 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
 		relocation = sym->st_value + rel[i].r_addend;
 		align = (int)location & 3;
 
+#ifdef CONFIG_SUPERH64
+		/* For text addresses, bit2 of the st_other field indicates
+		 * whether the symbol is SHmedia (1) or SHcompact (0).  If
+		 * SHmedia, the LSB of the symbol needs to be asserted
+		 * for the CPU to be in SHmedia mode when it starts executing
+		 * the branch target. */
+		relocation |= (sym->st_other & 4);
+#endif
+
 		switch (ELF32_R_TYPE(rel[i].r_info)) {
 		case R_SH_DIR32:
-	    		COPY_UNALIGNED_WORD (*location, value, align);
+			COPY_UNALIGNED_WORD (*location, value, align);
 			value += relocation;
-	    		COPY_UNALIGNED_WORD (value, *location, align);
+			COPY_UNALIGNED_WORD (value, *location, align);
 			break;
 		case R_SH_REL32:
-	  		relocation = (relocation - (Elf32_Addr) location);
-	    		COPY_UNALIGNED_WORD (*location, value, align);
+			relocation = (relocation - (Elf32_Addr) location);
+			COPY_UNALIGNED_WORD (*location, value, align);
 			value += relocation;
-	    		COPY_UNALIGNED_WORD (value, *location, align);
+			COPY_UNALIGNED_WORD (value, *location, align);
+			break;
+		case R_SH_IMM_LOW16:
+			*location = (*location & ~0x3fffc00) |
+				((relocation & 0xffff) << 10);
+			break;
+		case R_SH_IMM_MEDLOW16:
+			*location = (*location & ~0x3fffc00) |
+				(((relocation >> 16) & 0xffff) << 10);
+			break;
+		case R_SH_IMM_LOW16_PCREL:
+			relocation -= (Elf32_Addr) location;
+			*location = (*location & ~0x3fffc00) |
+				((relocation & 0xffff) << 10);
+			break;
+		case R_SH_IMM_MEDLOW16_PCREL:
+			relocation -= (Elf32_Addr) location;
+			*location = (*location & ~0x3fffc00) |
+				(((relocation >> 16) & 0xffff) << 10);
 			break;
 		default:
 			printk(KERN_ERR "module %s: Unknown relocation: %u\n",
diff --git a/arch/sh64/kernel/module.c b/arch/sh64/kernel/module.c
deleted file mode 100644
index 2598f6b88b44..000000000000
--- a/arch/sh64/kernel/module.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/*  Kernel module help for sh64.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-    Copyright 2004 SuperH (UK) Ltd
-    Author: Richard Curnow
-
-    Based on the sh version, and on code from the sh64-specific parts of
-    modutils, originally written by Richard Curnow and Ben Gaster.
-
-*/
-#include <linux/moduleloader.h>
-#include <linux/elf.h>
-#include <linux/vmalloc.h>
-#include <linux/fs.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(fmt...)
-#endif
-
-void *module_alloc(unsigned long size)
-{
-	if (size == 0)
-		return NULL;
-	return vmalloc(size);
-}
-
-
-/* Free memory returned from module_alloc */
-void module_free(struct module *mod, void *module_region)
-{
-	vfree(module_region);
-	/* FIXME: If module_region == mod->init_region, trim exception
-           table entries. */
-}
-
-/* We don't need anything special. */
-int module_frob_arch_sections(Elf_Ehdr *hdr,
-			      Elf_Shdr *sechdrs,
-			      char *secstrings,
-			      struct module *mod)
-{
-	return 0;
-}
-
-int apply_relocate_add(Elf32_Shdr *sechdrs,
-		   const char *strtab,
-		   unsigned int symindex,
-		   unsigned int relsec,
-		   struct module *me)
-{
-	unsigned int i;
-	Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;
-	Elf32_Sym *sym;
-	Elf32_Addr relocation;
-	uint32_t *location;
-	int align;
-	int is_shmedia;
-
-	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
-	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
-		/* This is where to make the change */
-		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
-			+ rel[i].r_offset;
-		/* This is the symbol it is referring to.  Note that all
-		   undefined symbols have been resolved.  */
-		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
-			+ ELF32_R_SYM(rel[i].r_info);
-		relocation = sym->st_value + rel[i].r_addend;
-		align = (int)location & 3;
-
-		/* For text addresses, bit2 of the st_other field indicates
-		 * whether the symbol is SHmedia (1) or SHcompact (0).  If
-		 * SHmedia, the LSB of the symbol needs to be asserted
-		 * for the CPU to be in SHmedia mode when it starts executing
-		 * the branch target. */
-		is_shmedia = (sym->st_other & 4) ? 1 : 0;
-		if (is_shmedia) {
-			relocation |= 1;
-		}
-
-		switch (ELF32_R_TYPE(rel[i].r_info)) {
-		case R_SH_DIR32:
-			DEBUGP("R_SH_DIR32 @%08lx = %08lx\n", (unsigned long) location, (unsigned long) relocation);
-			*location += relocation;
-			break;
-		case R_SH_REL32:
-			DEBUGP("R_SH_REL32 @%08lx = %08lx\n", (unsigned long) location, (unsigned long) relocation);
-			relocation -= (Elf32_Addr) location;
-			*location += relocation;
-			break;
-		case R_SH_IMM_LOW16:
-			DEBUGP("R_SH_IMM_LOW16 @%08lx = %08lx\n", (unsigned long) location, (unsigned long) relocation);
-			*location = (*location & ~0x3fffc00) |
-				((relocation & 0xffff) << 10);
-			break;
-		case R_SH_IMM_MEDLOW16:
-			DEBUGP("R_SH_IMM_MEDLOW16 @%08lx = %08lx\n", (unsigned long) location, (unsigned long) relocation);
-			*location = (*location & ~0x3fffc00) |
-				(((relocation >> 16) & 0xffff) << 10);
-			break;
-		case R_SH_IMM_LOW16_PCREL:
-			DEBUGP("R_SH_IMM_LOW16_PCREL @%08lx = %08lx\n", (unsigned long) location, (unsigned long) relocation);
-			relocation -= (Elf32_Addr) location;
-			*location = (*location & ~0x3fffc00) |
-				((relocation & 0xffff) << 10);
-			break;
-		case R_SH_IMM_MEDLOW16_PCREL:
-			DEBUGP("R_SH_IMM_MEDLOW16_PCREL @%08lx = %08lx\n", (unsigned long) location, (unsigned long) relocation);
-			relocation -= (Elf32_Addr) location;
-			*location = (*location & ~0x3fffc00) |
-				(((relocation >> 16) & 0xffff) << 10);
-			break;
-		default:
-			printk(KERN_ERR "module %s: Unknown relocation: %u\n",
-			       me->name, ELF32_R_TYPE(rel[i].r_info));
-			return -ENOEXEC;
-		}
-	}
-	return 0;
-}
-
-int apply_relocate(Elf32_Shdr *sechdrs,
-		       const char *strtab,
-		       unsigned int symindex,
-		       unsigned int relsec,
-		       struct module *me)
-{
-	printk(KERN_ERR "module %s: REL RELOCATION unsupported\n",
-	       me->name);
-	return -ENOEXEC;
-}
-
-int module_finalize(const Elf_Ehdr *hdr,
-		    const Elf_Shdr *sechdrs,
-		    struct module *me)
-{
-	return 0;
-}
-
-void module_arch_cleanup(struct module *mod)
-{
-}
-
-- 
cgit v1.2.3-59-g8ed1b


From 6694e8250e37058d5a8db23245a349db4e112fe4 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 15:35:42 +0900
Subject: sh: Sync up the _64 linker script with the _32 version.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/vmlinux_64.lds.S | 199 ++++++++++++++++++++++------------------
 1 file changed, 112 insertions(+), 87 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/vmlinux_64.lds.S b/arch/sh/kernel/vmlinux_64.lds.S
index 9e30775ffc2b..f0f5771657dd 100644
--- a/arch/sh/kernel/vmlinux_64.lds.S
+++ b/arch/sh/kernel/vmlinux_64.lds.S
@@ -1,11 +1,5 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh5/vmlinux.lds.S
- *
- * ld script to make ST50 Linux kernel
+ * ld script to make SH64 Linux kernel
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  *
@@ -13,15 +7,19 @@
  *    Add definition of empty_zero_page to be the first page of kernel image.
  *
  * benedict.gaster@superh.com:	 3rd May 2002
- *    Added support for ramdisk, removing statically linked romfs at the same time.
+ *    Added support for ramdisk, removing statically linked romfs at the
+ *    same time.
  *
  * lethal@linux-sh.org:          9th May 2003
  *    Kill off GLOBAL_NAME() usage and other CDC-isms.
  *
  * lethal@linux-sh.org:         19th May 2003
  *    Remove support for ancient toolchains.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
-
 #include <asm/page.h>
 #include <asm/cache.h>
 #include <asm/thread_info.h>
@@ -36,104 +34,131 @@ OUTPUT_ARCH(sh:sh5)
 ENTRY(__start)
 SECTIONS
 {
-  . = CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START + PAGE_SIZE;
-  _text = .;			/* Text and read-only data */
-  text = .;			/* Text and read-only data */
+	. = CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START + PAGE_SIZE;
+	_text = .;			/* Text and read-only data */
 
-  .empty_zero_page : C_PHYS(.empty_zero_page) {
-	*(.empty_zero_page)
+	.empty_zero_page : C_PHYS(.empty_zero_page) {
+		*(.empty_zero_page)
 	} = 0
 
-  .text : C_PHYS(.text) {
-  	*(.text.head)
-	TEXT_TEXT
-	*(.text64)
-        *(.text..SHmedia32)
-	SCHED_TEXT
-	LOCK_TEXT
-	*(.fixup)
-	*(.gnu.warning)
+	.text : C_PHYS(.text) {
+		*(.text.head)
+		TEXT_TEXT
+		*(.text64)
+		*(.text..SHmedia32)
+		SCHED_TEXT
+		LOCK_TEXT
+		KPROBES_TEXT
+		*(.fixup)
+		*(.gnu.warning)
 #ifdef CONFIG_LITTLE_ENDIAN
 	} = 0x6ff0fff0
 #else
 	} = 0xf0fff06f
 #endif
 
-  /* We likely want __ex_table to be Cache Line aligned */
-  . = ALIGN(L1_CACHE_BYTES);		/* Exception table */
-  __start___ex_table = .;
-  __ex_table : C_PHYS(__ex_table) { *(__ex_table) }
-  __stop___ex_table = .;
+	/* We likely want __ex_table to be Cache Line aligned */
+	. = ALIGN(L1_CACHE_BYTES);		/* Exception table */
+	__start___ex_table = .;
+	__ex_table : C_PHYS(__ex_table) { *(__ex_table) }
+	__stop___ex_table = .;
 
-  _etext = .;			/* End of text section */
+	_etext = .;			/* End of text section */
 
-  NOTES 
+	BUG_TABLE
+	NOTES 
+	RO_DATA(PAGE_SIZE)
 
-  RODATA
+	. = ALIGN(THREAD_SIZE);
+	.data : C_PHYS(.data) {			/* Data */
+		*(.data.init_task)
 
-  .data : C_PHYS(.data) {			/* Data */
-	DATA_DATA
-	CONSTRUCTORS
+		. = ALIGN(L1_CACHE_BYTES);
+		*(.data.cacheline_aligned)
+
+		. = ALIGN(L1_CACHE_BYTES);
+		*(.data.read_mostly)
+
+		. = ALIGN(PAGE_SIZE);
+		*(.data.page_aligned)
+
+		__nosave_begin = .;
+		*(.data.nosave)
+		. = ALIGN(PAGE_SIZE);
+		__nosave_end = .;
+
+		DATA_DATA
+		CONSTRUCTORS
 	}
 
-  . = ALIGN(PAGE_SIZE);
-  .data.page_aligned : C_PHYS(.data.page_aligned) { *(.data.page_aligned) }
-
-  PERCPU(PAGE_SIZE)
-
-  . = ALIGN(L1_CACHE_BYTES);
-  .data.cacheline_aligned : C_PHYS(.data.cacheline_aligned) { *(.data.cacheline_aligned) }
-
-  _edata = .;			/* End of data section */
-
-  . = ALIGN(THREAD_SIZE);	/* init_task: structure size aligned */
-  .data.init_task : C_PHYS(.data.init_task) { *(.data.init_task) }
-
-  . = ALIGN(PAGE_SIZE);		/* Init code and data */
-  __init_begin = .;
-  _sinittext = .;
-  .init.text : C_PHYS(.init.text) { *(.init.text) }
-  _einittext = .;
-  .init.data : C_PHYS(.init.data) { *(.init.data) }
-  . = ALIGN(L1_CACHE_BYTES);	/* Better if Cache Line aligned */
-  __setup_start = .;
-  .init.setup : C_PHYS(.init.setup) { *(.init.setup) }
-  __setup_end = .;
-  __initcall_start = .;
-  .initcall.init : C_PHYS(.initcall.init) {
-	INITCALLS
-  }
-  __initcall_end = .;
-  __con_initcall_start = .;
-  .con_initcall.init : C_PHYS(.con_initcall.init) { *(.con_initcall.init) }
-  __con_initcall_end = .;
-  SECURITY_INIT
+	_edata = .;			/* End of data section */
+
+	. = ALIGN(PAGE_SIZE);		/* Init code and data */
+	__init_begin = .;
+	_sinittext = .;
+	.init.text : C_PHYS(.init.text) { *(.init.text) }
+	_einittext = .;
+	.init.data : C_PHYS(.init.data) { *(.init.data) }
+	. = ALIGN(L1_CACHE_BYTES);	/* Better if Cache Line aligned */
+	__setup_start = .;
+	.init.setup : C_PHYS(.init.setup) { *(.init.setup) }
+	__setup_end = .;
+	__initcall_start = .;
+	.initcall.init : C_PHYS(.initcall.init) {
+		INITCALLS
+	}
+	__initcall_end = .;
+	__con_initcall_start = .;
+	.con_initcall.init : C_PHYS(.con_initcall.init) {
+		*(.con_initcall.init)
+	}
+	__con_initcall_end = .;
+
+	SECURITY_INIT
 
 #ifdef CONFIG_BLK_DEV_INITRD
-  __initramfs_start = .;
-  .init.ramfs : C_PHYS(.init.ramfs) { *(.init.ramfs) }
-  __initramfs_end = .;
+	. = ALIGN(PAGE_SIZE);
+	__initramfs_start = .;
+	.init.ramfs : C_PHYS(.init.ramfs) { *(.init.ramfs) }
+	__initramfs_end = .;
 #endif
 
-  . = ALIGN(PAGE_SIZE);
-  __init_end = .;
-
-  /* Align to the biggest single data representation, head and tail */
-  . = ALIGN(8);
-  __bss_start = .;		/* BSS */
-  .bss : C_PHYS(.bss) {
-	*(.bss)
+	. = ALIGN(8);
+	__machvec_start = .;
+	.machvec.init : C_PHYS(.machvec.init) { *(.machvec.init) }
+	__machvec_end = .;
+
+	PERCPU(PAGE_SIZE)
+
+	/*
+	 * .exit.text is discarded at runtime, not link time, to deal with
+	 * references from __bug_table
+	 */
+	.exit.text : C_PHYS(.exit.text) { *(.exit.text) }
+	.exit.data : C_PHYS(.exit.data) { *(.exit.data) }
+
+	. = ALIGN(PAGE_SIZE);
+	.bss : C_PHYS(.bss) {
+		__init_end = .;
+		__bss_start = .;		/* BSS */
+		*(.bss.page_aligned)
+		*(.bss)
+		*(COMMON)
+		. = ALIGN(4);
+		_ebss = .;			/* uClinux MTD sucks */
+		_end = . ;
 	}
-  . = ALIGN(8);
-  _end = . ;
-
-  /* Sections to be discarded */
-  /DISCARD/ : {
-	*(.exit.text)
-	*(.exit.data)
-	*(.exitcall.exit)
+
+	/*
+	 * When something in the kernel is NOT compiled as a module, the
+	 * module cleanup code and data are put into these segments. Both
+	 * can then be thrown away, as cleanup code is never called unless
+	 * it's a module.
+	 */
+	/DISCARD/ : {
+		*(.exitcall.exit)
 	}
 
-  STABS_DEBUG
-  DWARF_DEBUG
+	STABS_DEBUG
+	DWARF_DEBUG
 }
-- 
cgit v1.2.3-59-g8ed1b


From b4db3aec8351c78df77bbd95f1951a4dd0246853 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 15:38:11 +0900
Subject: sh: Fix up the _stext references for SH-5.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Makefile | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 4da3bc696b3d..15161f1851a5 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -74,15 +74,21 @@ OBJCOPYFLAGS	:= -O binary -R .note -R .note.gnu.build-id -R .comment -R .stab -R
 # never be used by anyone. Use a board-specific defconfig that has a
 # reasonable chance of being current instead.
 #
-KBUILD_DEFCONFIG := r7780rp_defconfig
+KBUILD_DEFCONFIG	:= r7780rp_defconfig
 
-KBUILD_IMAGE	:= arch/sh/boot/zImage
+KBUILD_IMAGE		:= arch/sh/boot/zImage
 
 #
 # Choosing incompatible machines durings configuration will result in
 # error messages during linking.
 #
-LDFLAGS_vmlinux     += -e _stext
+ifdef CONFIG_SUPERH32
+LDFLAGS_vmlinux	+= -e _stext
+else
+LDFLAGS_vmlinux	+= --defsym phys_stext=_stext-$(CONFIG_CACHED_MEMORY_OFFSET) \
+		   --defsym phys_stext_shmedia=phys_stext+1 \
+		   -e phys_stext_shmedia
+endif
 
 ifdef CONFIG_CPU_LITTLE_ENDIAN
 LDFLAGS_vmlinux		+= --defsym 'jiffies=jiffies_64'
-- 
cgit v1.2.3-59-g8ed1b


From a7aa92d1b499a3ad67b36137445ecb1411a4533b Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 15:38:50 +0900
Subject: sh: Kill off SH-5 enter_deep_standby() cruft.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/process_64.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index 0c2bc61b66b3..47415671da0c 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -27,6 +27,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/proc_fs.h>
+#include <linux/io.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 
@@ -106,9 +107,20 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	extern void enter_deep_standby(void);
+#if 0
+	/* Disable watchdog timer */
+	ctrl_outl(0xa5000000, WTCSR);
+	/* Configure deep standby on sleep */
+	ctrl_outl(0x03, STBCR);
+#endif
+
+	__asm__ __volatile__ (
+		"sleep\n\t"
+		"synci\n\t"
+		"nop;nop;nop;nop\n\t"
+	);
 
-	enter_deep_standby();
+	panic("Unexpected wakeup!\n");
 }
 
 void (*pm_power_off)(void) = machine_power_off;
-- 
cgit v1.2.3-59-g8ed1b


From e7e0a4b54a7f225f770d313f9e042f83ece57a35 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 15:48:39 +0900
Subject: sh: Share the ELF dump_task interfaces.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile_32  |  1 +
 arch/sh/kernel/Makefile_64  |  1 +
 arch/sh/kernel/dump_task.c  | 31 +++++++++++++++++++++++++++++++
 arch/sh/kernel/process_32.c | 28 ----------------------------
 4 files changed, 33 insertions(+), 28 deletions(-)
 create mode 100644 arch/sh/kernel/dump_task.c

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index 5c7fa594d6d1..17216f5e7c93 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/arch/sh/kernel/Makefile_32
@@ -21,5 +21,6 @@ obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
 obj-$(CONFIG_PM)		+= pm.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
+obj-$(CONFIG_BINFMT_ELF)	+= dump_task.o
 
 EXTRA_CFLAGS += -Werror
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index 585b6a11d3f6..1211e864ef12 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/arch/sh/kernel/Makefile_64
@@ -17,5 +17,6 @@ obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
 obj-$(CONFIG_PM)		+= pm.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
+obj-$(CONFIG_BINFMT_ELF)	+= dump_task.o
 
 EXTRA_CFLAGS += -Werror
diff --git a/arch/sh/kernel/dump_task.c b/arch/sh/kernel/dump_task.c
new file mode 100644
index 000000000000..4a8a4083ff0b
--- /dev/null
+++ b/arch/sh/kernel/dump_task.c
@@ -0,0 +1,31 @@
+#include <linux/elfcore.h>
+#include <linux/sched.h>
+
+/*
+ * Capture the user space registers if the task is not running (in user space)
+ */
+int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
+{
+	struct pt_regs ptregs;
+
+	ptregs = *task_pt_regs(tsk);
+	elf_core_copy_regs(regs, &ptregs);
+
+	return 1;
+}
+
+int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpu)
+{
+	int fpvalid = 0;
+
+#if defined(CONFIG_SH_FPU)
+	fpvalid = !!tsk_used_math(tsk);
+	if (fpvalid) {
+		unlazy_fpu(tsk, task_pt_regs(tsk));
+		memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
+	}
+#endif
+
+	return fpvalid;
+}
+
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 6d7f2b07e491..c9291f462311 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -230,34 +230,6 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
 	return fpvalid;
 }
 
-/*
- * Capture the user space registers if the task is not running (in user space)
- */
-int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
-{
-	struct pt_regs ptregs;
-
-	ptregs = *task_pt_regs(tsk);
-	elf_core_copy_regs(regs, &ptregs);
-
-	return 1;
-}
-
-int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpu)
-{
-	int fpvalid = 0;
-
-#if defined(CONFIG_SH_FPU)
-	fpvalid = !!tsk_used_math(tsk);
-	if (fpvalid) {
-		unlazy_fpu(tsk, task_pt_regs(tsk));
-		memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
-	}
-#endif
-
-	return fpvalid;
-}
-
 asmlinkage void ret_from_fork(void);
 
 int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
-- 
cgit v1.2.3-59-g8ed1b


From bcb28e42be8c1cce6cc523c1b656980011464016 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 15:50:59 +0900
Subject: sh: sys_sh consolidation for arch_get_unmapped_area().

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile_32 |   2 +-
 arch/sh/kernel/Makefile_64 |   2 +-
 arch/sh/kernel/sys_sh.c    | 100 ++++--------------
 arch/sh/kernel/sys_sh32.c  |  84 ++++++++++++++++
 arch/sh/kernel/sys_sh64.c  | 246 +--------------------------------------------
 5 files changed, 108 insertions(+), 326 deletions(-)
 create mode 100644 arch/sh/kernel/sys_sh32.c

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index 17216f5e7c93..34e8fa0d40cc 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/arch/sh/kernel/Makefile_32
@@ -5,7 +5,7 @@
 extra-y	:= head_32.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_32.o \
-	   ptrace_32.o semaphore.o setup.o signal_32.o sys_sh.o \
+	   ptrace_32.o semaphore.o setup.o signal_32.o sys_sh.o sys_sh32.o \
 	   syscalls_32.o time.o topology.o traps_32.o
 
 obj-y				+= cpu/ timers/
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index 1211e864ef12..aeac4006df7b 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/arch/sh/kernel/Makefile_64
@@ -1,7 +1,7 @@
 extra-y	:= head_64.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
-	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh64.o \
+	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh.o sys_sh64.o \
 	   syscalls_64.o time.o topology.o traps_64.o
 
 obj-y				+= cpu/ timers/
diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c
index d545a686a201..59cd2859ce9b 100644
--- a/arch/sh/kernel/sys_sh.c
+++ b/arch/sh/kernel/sys_sh.c
@@ -7,7 +7,6 @@
  *
  * Taken from i386 version.
  */
-
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
@@ -27,28 +26,7 @@
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way Unix traditionally does this, though.
- */
-asmlinkage int sys_pipe(unsigned long r4, unsigned long r5,
-	unsigned long r6, unsigned long r7,
-	struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-	int fd[2];
-	int error;
-
-	error = do_pipe(fd);
-	if (!error) {
-		regs->regs[1] = fd[1];
-		return fd[0];
-	}
-	return error;
-}
-
 unsigned long shm_align_mask = PAGE_SIZE - 1;	/* Sane caches */
-
 EXPORT_SYMBOL(shm_align_mask);
 
 #ifdef CONFIG_MMU
@@ -140,7 +118,7 @@ full_search:
 #endif /* CONFIG_MMU */
 
 static inline long
-do_mmap2(unsigned long addr, unsigned long len, unsigned long prot, 
+do_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
 	 unsigned long flags, int fd, unsigned long pgoff)
 {
 	int error = -EBADF;
@@ -195,12 +173,13 @@ asmlinkage int sys_ipc(uint call, int first, int second,
 	if (call <= SEMCTL)
 		switch (call) {
 		case SEMOP:
-			return sys_semtimedop(first, (struct sembuf __user *)ptr,
+			return sys_semtimedop(first,
+					      (struct sembuf __user *)ptr,
 					      second, NULL);
 		case SEMTIMEDOP:
-			return sys_semtimedop(first, (struct sembuf __user *)ptr,
-					      second,
-					      (const struct timespec __user *)fifth);
+			return sys_semtimedop(first,
+				(struct sembuf __user *)ptr, second,
+			        (const struct timespec __user *)fifth);
 		case SEMGET:
 			return sys_semget (first, second, third);
 		case SEMCTL: {
@@ -215,25 +194,28 @@ asmlinkage int sys_ipc(uint call, int first, int second,
 			return -EINVAL;
 		}
 
-	if (call <= MSGCTL) 
+	if (call <= MSGCTL)
 		switch (call) {
 		case MSGSND:
-			return sys_msgsnd (first, (struct msgbuf __user *) ptr, 
+			return sys_msgsnd (first, (struct msgbuf __user *) ptr,
 					  second, third);
 		case MSGRCV:
 			switch (version) {
-			case 0: {
+			case 0:
+			{
 				struct ipc_kludge tmp;
+
 				if (!ptr)
 					return -EINVAL;
-				
+
 				if (copy_from_user(&tmp,
-						   (struct ipc_kludge __user *) ptr, 
+					(struct ipc_kludge __user *) ptr,
 						   sizeof (tmp)))
 					return -EFAULT;
+
 				return sys_msgrcv (first, tmp.msgp, second,
 						   tmp.msgtyp, third);
-				}
+			}
 			default:
 				return sys_msgrcv (first,
 						   (struct msgbuf __user *) ptr,
@@ -247,7 +229,7 @@ asmlinkage int sys_ipc(uint call, int first, int second,
 		default:
 			return -EINVAL;
 		}
-	if (call <= SHMCTL) 
+	if (call <= SHMCTL)
 		switch (call) {
 		case SHMAT:
 			switch (version) {
@@ -265,7 +247,7 @@ asmlinkage int sys_ipc(uint call, int first, int second,
 				return do_shmat (first, (char __user *) ptr,
 						  second, (ulong *) third);
 			}
-		case SHMDT: 
+		case SHMDT:
 			return sys_shmdt ((char __user *)ptr);
 		case SHMGET:
 			return sys_shmget (first, second, third);
@@ -275,7 +257,7 @@ asmlinkage int sys_ipc(uint call, int first, int second,
 		default:
 			return -EINVAL;
 		}
-	
+
 	return -EINVAL;
 }
 
@@ -289,49 +271,3 @@ asmlinkage int sys_uname(struct old_utsname * name)
 	up_read(&uts_sem);
 	return err?-EFAULT:0;
 }
-
-asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char * buf,
-			     size_t count, long dummy, loff_t pos)
-{
-	return sys_pread64(fd, buf, count, pos);
-}
-
-asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char * buf,
-			      size_t count, long dummy, loff_t pos)
-{
-	return sys_pwrite64(fd, buf, count, pos);
-}
-
-asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1,
-				u32 len0, u32 len1, int advice)
-{
-#ifdef  __LITTLE_ENDIAN__
-	return sys_fadvise64_64(fd, (u64)offset1 << 32 | offset0,
-				(u64)len1 << 32 | len0,	advice);
-#else
-	return sys_fadvise64_64(fd, (u64)offset0 << 32 | offset1,
-				(u64)len0 << 32 | len1,	advice);
-#endif
-}
-
-#if defined(CONFIG_CPU_SH2) || defined(CONFIG_CPU_SH2A)
-#define SYSCALL_ARG3	"trapa #0x23"
-#else
-#define SYSCALL_ARG3	"trapa #0x13"
-#endif
-
-/*
- * Do a system call from kernel instead of calling sys_execve so we
- * end up with proper pt_regs.
- */
-int kernel_execve(const char *filename, char *const argv[], char *const envp[])
-{
-	register long __sc0 __asm__ ("r3") = __NR_execve;
-	register long __sc4 __asm__ ("r4") = (long) filename;
-	register long __sc5 __asm__ ("r5") = (long) argv;
-	register long __sc6 __asm__ ("r6") = (long) envp;
-	__asm__ __volatile__ (SYSCALL_ARG3 : "=z" (__sc0)	
-			: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6)
-			: "memory");
-	return __sc0;
-}
diff --git a/arch/sh/kernel/sys_sh32.c b/arch/sh/kernel/sys_sh32.c
new file mode 100644
index 000000000000..125e493ead82
--- /dev/null
+++ b/arch/sh/kernel/sys_sh32.c
@@ -0,0 +1,84 @@
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/stat.h>
+#include <linux/syscalls.h>
+#include <linux/mman.h>
+#include <linux/file.h>
+#include <linux/utsname.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/ipc.h>
+#include <asm/cacheflush.h>
+#include <asm/uaccess.h>
+#include <asm/unistd.h>
+
+/*
+ * sys_pipe() is the normal C calling standard for creating
+ * a pipe. It's not the way Unix traditionally does this, though.
+ */
+asmlinkage int sys_pipe(unsigned long r4, unsigned long r5,
+	unsigned long r6, unsigned long r7,
+	struct pt_regs __regs)
+{
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+	int fd[2];
+	int error;
+
+	error = do_pipe(fd);
+	if (!error) {
+		regs->regs[1] = fd[1];
+		return fd[0];
+	}
+	return error;
+}
+
+asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char * buf,
+			     size_t count, long dummy, loff_t pos)
+{
+	return sys_pread64(fd, buf, count, pos);
+}
+
+asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char * buf,
+			      size_t count, long dummy, loff_t pos)
+{
+	return sys_pwrite64(fd, buf, count, pos);
+}
+
+asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1,
+				u32 len0, u32 len1, int advice)
+{
+#ifdef  __LITTLE_ENDIAN__
+	return sys_fadvise64_64(fd, (u64)offset1 << 32 | offset0,
+				(u64)len1 << 32 | len0,	advice);
+#else
+	return sys_fadvise64_64(fd, (u64)offset0 << 32 | offset1,
+				(u64)len0 << 32 | len1,	advice);
+#endif
+}
+
+#if defined(CONFIG_CPU_SH2) || defined(CONFIG_CPU_SH2A)
+#define SYSCALL_ARG3	"trapa #0x23"
+#else
+#define SYSCALL_ARG3	"trapa #0x13"
+#endif
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+	register long __sc0 __asm__ ("r3") = __NR_execve;
+	register long __sc4 __asm__ ("r4") = (long) filename;
+	register long __sc5 __asm__ ("r5") = (long) argv;
+	register long __sc6 __asm__ ("r6") = (long) envp;
+	__asm__ __volatile__ (SYSCALL_ARG3 : "=z" (__sc0)
+			: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6)
+			: "memory");
+	return __sc0;
+}
diff --git a/arch/sh/kernel/sys_sh64.c b/arch/sh/kernel/sys_sh64.c
index de0a303ba26f..578004d71e02 100644
--- a/arch/sh/kernel/sys_sh64.c
+++ b/arch/sh/kernel/sys_sh64.c
@@ -1,9 +1,5 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/sys_sh64.c
+ * arch/sh/kernel/sys_sh64.c
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  *
@@ -11,10 +7,10 @@
  * have a non-standard calling sequence on the Linux/SH5
  * platform.
  *
- * Mostly taken from i386 version.
- *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
-
 #include <linux/errno.h>
 #include <linux/rwsem.h>
 #include <linux/sched.h>
@@ -34,48 +30,10 @@
 #include <asm/ptrace.h>
 #include <asm/unistd.h>
 
-#define REG_3	3
-
 /*
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way Unix traditionally does this, though.
  */
-#ifdef NEW_PIPE_IMPLEMENTATION
-asmlinkage int sys_pipe(unsigned long * fildes,
-			unsigned long   dummy_r3,
-			unsigned long   dummy_r4,
-			unsigned long   dummy_r5,
-			unsigned long   dummy_r6,
-			unsigned long   dummy_r7,
-			struct pt_regs * regs)	   /* r8 = pt_regs  forced by entry.S */
-{
-	int fd[2];
-	int ret;
-
-	ret = do_pipe(fd);
-	if (ret == 0)
-		/*
-		 ***********************************************************************
-		 *   To avoid the copy_to_user we prefer to break the ABIs convention, *
-		 *   packing the valid pair of file IDs into a single register (r3);   *
-		 *   while r2 is the return code as defined by the sh5-ABIs.	       *
-		 *   BE CAREFUL: pipe stub, into glibc, must be aware of this solution *
-		 ***********************************************************************
-
-#ifdef __LITTLE_ENDIAN__
-		regs->regs[REG_3] = (((unsigned long long) fd[1]) << 32) | ((unsigned long long) fd[0]);
-#else
-		regs->regs[REG_3] = (((unsigned long long) fd[0]) << 32) | ((unsigned long long) fd[1]);
-#endif
-
-		*/
-	       /* although not very clever this is endianess independent */
-		regs->regs[REG_3] = (unsigned long long) *((unsigned long long *) fd);
-
-	return ret;
-}
-
-#else
 asmlinkage int sys_pipe(unsigned long * fildes)
 {
         int fd[2];
@@ -89,202 +47,6 @@ asmlinkage int sys_pipe(unsigned long * fildes)
         return error;
 }
 
-#endif
-
-/*
- * To avoid cache alias, we map the shard page with same color.
- */
-#define COLOUR_ALIGN(addr)	(((addr)+SHMLBA-1)&~(SHMLBA-1))
-
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
-	unsigned long len, unsigned long pgoff, unsigned long flags)
-{
-	struct vm_area_struct *vma;
-
-	if (flags & MAP_FIXED) {
-		/* We do not accept a shared mapping if it would violate
-		 * cache aliasing constraints.
-		 */
-		if ((flags & MAP_SHARED) && (addr & (SHMLBA - 1)))
-			return -EINVAL;
-		return addr;
-	}
-
-	if (len > TASK_SIZE)
-		return -ENOMEM;
-	if (!addr)
-		addr = TASK_UNMAPPED_BASE;
-
-	if (flags & MAP_PRIVATE)
-		addr = PAGE_ALIGN(addr);
-	else
-		addr = COLOUR_ALIGN(addr);
-
-	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (TASK_SIZE - len < addr)
-			return -ENOMEM;
-		if (!vma || addr + len <= vma->vm_start)
-			return addr;
-		addr = vma->vm_end;
-		if (!(flags & MAP_PRIVATE))
-			addr = COLOUR_ALIGN(addr);
-	}
-}
-
-/* common code for old and new mmaps */
-static inline long do_mmap2(
-	unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags,
-	unsigned long fd, unsigned long pgoff)
-{
-	int error = -EBADF;
-	struct file * file = NULL;
-
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-	if (!(flags & MAP_ANONYMOUS)) {
-		file = fget(fd);
-		if (!file)
-			goto out;
-	}
-
-	down_write(&current->mm->mmap_sem);
-	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-	up_write(&current->mm->mmap_sem);
-
-	if (file)
-		fput(file);
-out:
-	return error;
-}
-
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags,
-	unsigned long fd, unsigned long pgoff)
-{
-	return do_mmap2(addr, len, prot, flags, fd, pgoff);
-}
-
-asmlinkage int old_mmap(unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags,
-	int fd, unsigned long off)
-{
-	if (off & ~PAGE_MASK)
-		return -EINVAL;
-	return do_mmap2(addr, len, prot, flags, fd, off>>PAGE_SHIFT);
-}
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc(uint call, int first, int second,
-		       int third, void __user *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	if (call <= SEMCTL)
-		switch (call) {
-		case SEMOP:
-			return sys_semtimedop(first, (struct sembuf __user *)ptr,
-					      second, NULL);
-		case SEMTIMEDOP:
-			return sys_semtimedop(first, (struct sembuf __user *)ptr,
-					      second,
-					      (const struct timespec __user *)fifth);
-		case SEMGET:
-			return sys_semget (first, second, third);
-		case SEMCTL: {
-			union semun fourth;
-			if (!ptr)
-				return -EINVAL;
-			if (get_user(fourth.__pad, (void * __user *) ptr))
-				return -EFAULT;
-			return sys_semctl (first, second, third, fourth);
-			}
-		default:
-			return -EINVAL;
-		}
-
-	if (call <= MSGCTL)
-		switch (call) {
-		case MSGSND:
-			return sys_msgsnd (first, (struct msgbuf __user *) ptr,
-					  second, third);
-		case MSGRCV:
-			switch (version) {
-			case 0: {
-				struct ipc_kludge tmp;
-				if (!ptr)
-					return -EINVAL;
-
-				if (copy_from_user(&tmp,
-						   (struct ipc_kludge __user *) ptr,
-						   sizeof (tmp)))
-					return -EFAULT;
-				return sys_msgrcv (first, tmp.msgp, second,
-						   tmp.msgtyp, third);
-				}
-			default:
-				return sys_msgrcv (first,
-						   (struct msgbuf __user *) ptr,
-						   second, fifth, third);
-			}
-		case MSGGET:
-			return sys_msgget ((key_t) first, second);
-		case MSGCTL:
-			return sys_msgctl (first, second,
-					   (struct msqid_ds __user *) ptr);
-		default:
-			return -EINVAL;
-		}
-	if (call <= SHMCTL)
-		switch (call) {
-		case SHMAT:
-			switch (version) {
-			default: {
-				ulong raddr;
-				ret = do_shmat (first, (char __user *) ptr,
-						 second, &raddr);
-				if (ret)
-					return ret;
-				return put_user (raddr, (ulong __user *) third);
-			}
-			case 1:	/* iBCS2 emulator entry point */
-				if (!segment_eq(get_fs(), get_ds()))
-					return -EINVAL;
-				return do_shmat (first, (char __user *) ptr,
-						  second, (ulong *) third);
-			}
-		case SHMDT:
-			return sys_shmdt ((char __user *)ptr);
-		case SHMGET:
-			return sys_shmget (first, second, third);
-		case SHMCTL:
-			return sys_shmctl (first, second,
-					   (struct shmid_ds __user *) ptr);
-		default:
-			return -EINVAL;
-		}
-
-	return -EINVAL;
-}
-
-asmlinkage int sys_uname(struct old_utsname * name)
-{
-	int err;
-	if (!name)
-		return -EFAULT;
-	down_read(&uts_sem);
-	err = copy_to_user(name, utsname(), sizeof (*name));
-	up_read(&uts_sem);
-	return err?-EFAULT:0;
-}
-
 /*
  * Do a system call from kernel instead of calling sys_execve so we
  * end up with proper pt_regs.
-- 
cgit v1.2.3-59-g8ed1b


From 379a95d1d2c3e3682e380084c40b6fc01e38fa1f Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 16:51:28 +0900
Subject: sh: Tidy up various clear_page()/copy_page() definitions.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/lib64/page_clear.S |  4 ++--
 arch/sh/lib64/page_copy.S  | 56 ++++++++++++++++++++++------------------------
 arch/sh/mm/copy_page.S     |  6 ++---
 arch/sh/mm/init.c          | 15 -------------
 arch/sh/mm/pg-nommu.c      |  4 ++--
 include/asm-sh/page.h      | 12 ++--------
 6 files changed, 36 insertions(+), 61 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/lib64/page_clear.S b/arch/sh/lib64/page_clear.S
index ac0111d669a3..007ab48ecc1c 100644
--- a/arch/sh/lib64/page_clear.S
+++ b/arch/sh/lib64/page_clear.S
@@ -25,8 +25,8 @@
 	.little
 
 	.balign 8
-	.global sh64_page_clear
-sh64_page_clear:
+	.global clear_page
+clear_page:
 	pta/l 1f, tr1
 	pta/l 2f, tr2
 	ptabs/l r18, tr0
diff --git a/arch/sh/lib64/page_copy.S b/arch/sh/lib64/page_copy.S
index e159c3cd2582..0ec6fca63b56 100644
--- a/arch/sh/lib64/page_copy.S
+++ b/arch/sh/lib64/page_copy.S
@@ -10,8 +10,8 @@
    of SH5-101 cut2 eval chip with Cayman board DDR memory.
 
    Parameters:
-   r2 : source effective address (start of page)
-   r3 : destination effective address (start of page)
+   r2 : destination effective address (start of page)
+   r3 : source effective address (start of page)
 
    Always copies 4096 bytes.
 
@@ -27,10 +27,10 @@
 	.little
 
 	.balign 8
-	.global sh64_page_copy
-sh64_page_copy:
+	.global copy_page
+copy_page:
 
-	/* Copy 4096 bytes worth of data from r2 to r3.
+	/* Copy 4096 bytes worth of data from r3 to r2.
 	   Do prefetches 4 lines ahead.
 	   Do alloco 2 lines ahead */
 
@@ -41,21 +41,21 @@ sh64_page_copy:
 
 #if 0
 	/* TAKum03020 */
-	ld.q r2, 0x00, r63
-	ld.q r2, 0x20, r63
-	ld.q r2, 0x40, r63
-	ld.q r2, 0x60, r63
+	ld.q r3, 0x00, r63
+	ld.q r3, 0x20, r63
+	ld.q r3, 0x40, r63
+	ld.q r3, 0x60, r63
 #endif
-	alloco r3, 0x00
+	alloco r2, 0x00
 	synco		! TAKum03020
-	alloco r3, 0x20
+	alloco r2, 0x20
 	synco		! TAKum03020
 
 	movi 3968, r6
-	add  r3, r6, r6
+	add  r2, r6, r6
 	addi r6, 64, r7
 	addi r7, 64, r8
-	sub r2, r3, r60
+	sub r3, r2, r60
 	addi r60, 8, r61
 	addi r61, 8, r62
 	addi r62, 8, r23
@@ -67,25 +67,23 @@ sh64_page_copy:
 1:
 #if 0
 	/* TAKum03020 */
-	bge/u r3, r6, tr2  ! skip prefetch for last 4 lines
-	ldx.q r3, r22, r63 ! prefetch 4 lines hence
+	bge/u r2, r6, tr2  ! skip prefetch for last 4 lines
+	ldx.q r2, r22, r63 ! prefetch 4 lines hence
 #endif
 2:
-	bge/u r3, r7, tr3  ! skip alloco for last 2 lines
-	alloco r3, 0x40    ! alloc destination line 2 lines ahead
+	bge/u r2, r7, tr3  ! skip alloco for last 2 lines
+	alloco r2, 0x40    ! alloc destination line 2 lines ahead
 	synco		! TAKum03020
 3:
-	ldx.q r3, r60, r36
-	ldx.q r3, r61, r37
-	ldx.q r3, r62, r38
-	ldx.q r3, r23, r39
-	st.q  r3,   0, r36
-	st.q  r3,   8, r37
-	st.q  r3,  16, r38
-	st.q  r3,  24, r39
-	addi r3, 32, r3
-	bgt/l r8, r3, tr1
+	ldx.q r2, r60, r36
+	ldx.q r2, r61, r37
+	ldx.q r2, r62, r38
+	ldx.q r2, r23, r39
+	st.q  r2,   0, r36
+	st.q  r2,   8, r37
+	st.q  r2,  16, r38
+	st.q  r2,  24, r39
+	addi r2, 32, r2
+	bgt/l r8, r2, tr1
 
 	blink tr0, r63	   ! return
-
-
diff --git a/arch/sh/mm/copy_page.S b/arch/sh/mm/copy_page.S
index 40685018b952..b879545fa28b 100644
--- a/arch/sh/mm/copy_page.S
+++ b/arch/sh/mm/copy_page.S
@@ -9,11 +9,11 @@
 #include <asm/page.h>
 
 /*
- * copy_page_slow
+ * copy_page
  * @to: P1 address
  * @from: P1 address
  *
- * void copy_page_slow(void *to, void *from)
+ * void copy_page(void *to, void *from)
  */
 
 /*
@@ -23,7 +23,7 @@
  * r10 --- to
  * r11 --- from
  */
-ENTRY(copy_page_slow)
+ENTRY(copy_page)
 	mov.l	r8,@-r15
 	mov.l	r10,@-r15
 	mov.l	r11,@-r15
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 5d19c8c7ab53..79c309780f95 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -24,9 +24,6 @@
 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 pgd_t swapper_pg_dir[PTRS_PER_PGD];
 
-void (*copy_page)(void *from, void *to);
-void (*clear_page)(void *to);
-
 void show_mem(void)
 {
 	int total = 0, reserved = 0, free = 0;
@@ -203,18 +200,6 @@ void __init mem_init(void)
 	memset(empty_zero_page, 0, PAGE_SIZE);
 	__flush_wback_region(empty_zero_page, PAGE_SIZE);
 
-	/*
-	 * Setup wrappers for copy/clear_page(), these will get overridden
-	 * later in the boot process if a better method is available.
-	 */
-#ifdef CONFIG_MMU
-	copy_page = copy_page_slow;
-	clear_page = clear_page_slow;
-#else
-	copy_page = copy_page_nommu;
-	clear_page = clear_page_nommu;
-#endif
-
 	after_bootmem = 1;
 
 	codesize =  (unsigned long) &_etext - (unsigned long) &_text;
diff --git a/arch/sh/mm/pg-nommu.c b/arch/sh/mm/pg-nommu.c
index d15221beaa16..677dd57f0877 100644
--- a/arch/sh/mm/pg-nommu.c
+++ b/arch/sh/mm/pg-nommu.c
@@ -14,12 +14,12 @@
 #include <linux/string.h>
 #include <asm/page.h>
 
-void copy_page_nommu(void *to, void *from)
+void copy_page(void *to, void *from)
 {
 	memcpy(to, from, PAGE_SIZE);
 }
 
-void clear_page_nommu(void *to)
+void clear_page(void *to)
 {
 	memset(to, 0, PAGE_SIZE);
 }
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h
index 93a89841227f..e21b0d12e139 100644
--- a/include/asm-sh/page.h
+++ b/include/asm-sh/page.h
@@ -55,20 +55,12 @@
 
 #ifndef __ASSEMBLY__
 
-extern void (*clear_page)(void *to);
-extern void (*copy_page)(void *to, void *from);
-
 extern unsigned long shm_align_mask;
 extern unsigned long max_low_pfn, min_low_pfn;
 extern unsigned long memory_start, memory_end;
 
-#ifdef CONFIG_MMU
-extern void clear_page_slow(void *to);
-extern void copy_page_slow(void *to, void *from);
-#else
-extern void clear_page_nommu(void *to);
-extern void copy_page_nommu(void *to, void *from);
-#endif
+extern void clear_page(void *to);
+extern void copy_page(void *to, void *from);
 
 #if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_MMU) && \
 	(defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB))
-- 
cgit v1.2.3-59-g8ed1b


From 811d50cb43eb730cc325df0c6913556e25739797 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 17:01:55 +0900
Subject: sh: Move in the SH-5 TLB miss.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/Makefile_32 |   2 +-
 arch/sh/mm/Makefile_64 |   2 +-
 arch/sh/mm/fault.c     | 303 -------------------------------------------------
 arch/sh/mm/fault_32.c  | 303 +++++++++++++++++++++++++++++++++++++++++++++++++
 arch/sh/mm/fault_64.c  | 279 +++++++++++++++++++++++++++++++++++++++++++++
 arch/sh64/mm/tlbmiss.c | 279 ---------------------------------------------
 6 files changed, 584 insertions(+), 584 deletions(-)
 delete mode 100644 arch/sh/mm/fault.c
 create mode 100644 arch/sh/mm/fault_32.c
 create mode 100644 arch/sh/mm/fault_64.c
 delete mode 100644 arch/sh64/mm/tlbmiss.c

(limited to 'arch')

diff --git a/arch/sh/mm/Makefile_32 b/arch/sh/mm/Makefile_32
index 9ea379303742..fc089c0cdbe9 100644
--- a/arch/sh/mm/Makefile_32
+++ b/arch/sh/mm/Makefile_32
@@ -12,7 +12,7 @@ obj-$(CONFIG_SH7705_CACHE_32KB)	+= cache-sh7705.o
 endif
 
 mmu-y			:= tlb-nommu.o pg-nommu.o
-mmu-$(CONFIG_MMU)	:= fault.o clear_page.o copy_page.o tlb-flush_32.o \
+mmu-$(CONFIG_MMU)	:= fault_32.o clear_page.o copy_page.o tlb-flush_32.o \
 			   ioremap_32.o
 
 obj-y			+= $(mmu-y)
diff --git a/arch/sh/mm/Makefile_64 b/arch/sh/mm/Makefile_64
index ec8deaa17909..82fe9072fd5c 100644
--- a/arch/sh/mm/Makefile_64
+++ b/arch/sh/mm/Makefile_64
@@ -5,7 +5,7 @@
 obj-y			:= init.o extable_64.o consistent.o
 
 mmu-y			:= tlb-nommu.o pg-nommu.o
-mmu-$(CONFIG_MMU)	:= ioremap_64.o tlb-flush_64.o
+mmu-$(CONFIG_MMU)	:= fault_64.o ioremap_64.o tlb-flush_64.o
 
 obj-y			+= $(mmu-y)
 
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
deleted file mode 100644
index 60d74f793a1d..000000000000
--- a/arch/sh/mm/fault.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/*
- * Page fault handler for SH with an MMU.
- *
- *  Copyright (C) 1999  Niibe Yutaka
- *  Copyright (C) 2003 - 2007  Paul Mundt
- *
- *  Based on linux/arch/i386/mm/fault.c:
- *   Copyright (C) 1995  Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/hardirq.h>
-#include <linux/kprobes.h>
-#include <asm/system.h>
-#include <asm/mmu_context.h>
-#include <asm/tlbflush.h>
-#include <asm/kgdb.h>
-
-/*
- * This routine handles page faults.  It determines the address,
- * and the problem, and then passes it off to one of the appropriate
- * routines.
- */
-asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
-					unsigned long writeaccess,
-					unsigned long address)
-{
-	struct task_struct *tsk;
-	struct mm_struct *mm;
-	struct vm_area_struct * vma;
-	int si_code;
-	int fault;
-	siginfo_t info;
-
-	trace_hardirqs_on();
-	local_irq_enable();
-
-#ifdef CONFIG_SH_KGDB
-	if (kgdb_nofault && kgdb_bus_err_hook)
-		kgdb_bus_err_hook();
-#endif
-
-	tsk = current;
-	mm = tsk->mm;
-	si_code = SEGV_MAPERR;
-
-	if (unlikely(address >= TASK_SIZE)) {
-		/*
-		 * Synchronize this task's top level page-table
-		 * with the 'reference' page table.
-		 *
-		 * Do _not_ use "tsk" here. We might be inside
-		 * an interrupt in the middle of a task switch..
-		 */
-		int offset = pgd_index(address);
-		pgd_t *pgd, *pgd_k;
-		pud_t *pud, *pud_k;
-		pmd_t *pmd, *pmd_k;
-
-		pgd = get_TTB() + offset;
-		pgd_k = swapper_pg_dir + offset;
-
-		/* This will never happen with the folded page table. */
-		if (!pgd_present(*pgd)) {
-			if (!pgd_present(*pgd_k))
-				goto bad_area_nosemaphore;
-			set_pgd(pgd, *pgd_k);
-			return;
-		}
-
-		pud = pud_offset(pgd, address);
-		pud_k = pud_offset(pgd_k, address);
-		if (pud_present(*pud) || !pud_present(*pud_k))
-			goto bad_area_nosemaphore;
-		set_pud(pud, *pud_k);
-
-		pmd = pmd_offset(pud, address);
-		pmd_k = pmd_offset(pud_k, address);
-		if (pmd_present(*pmd) || !pmd_present(*pmd_k))
-			goto bad_area_nosemaphore;
-		set_pmd(pmd, *pmd_k);
-
-		return;
-	}
-
-	/*
-	 * If we're in an interrupt or have no user
-	 * context, we must not take the fault..
-	 */
-	if (in_atomic() || !mm)
-		goto no_context;
-
-	down_read(&mm->mmap_sem);
-
-	vma = find_vma(mm, address);
-	if (!vma)
-		goto bad_area;
-	if (vma->vm_start <= address)
-		goto good_area;
-	if (!(vma->vm_flags & VM_GROWSDOWN))
-		goto bad_area;
-	if (expand_stack(vma, address))
-		goto bad_area;
-/*
- * Ok, we have a good vm_area for this memory access, so
- * we can handle it..
- */
-good_area:
-	si_code = SEGV_ACCERR;
-	if (writeaccess) {
-		if (!(vma->vm_flags & VM_WRITE))
-			goto bad_area;
-	} else {
-		if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
-			goto bad_area;
-	}
-
-	/*
-	 * If for any reason at all we couldn't handle the fault,
-	 * make sure we exit gracefully rather than endlessly redo
-	 * the fault.
-	 */
-survive:
-	fault = handle_mm_fault(mm, vma, address, writeaccess);
-	if (unlikely(fault & VM_FAULT_ERROR)) {
-		if (fault & VM_FAULT_OOM)
-			goto out_of_memory;
-		else if (fault & VM_FAULT_SIGBUS)
-			goto do_sigbus;
-		BUG();
-	}
-	if (fault & VM_FAULT_MAJOR)
-		tsk->maj_flt++;
-	else
-		tsk->min_flt++;
-
-	up_read(&mm->mmap_sem);
-	return;
-
-/*
- * Something tried to access memory that isn't in our memory map..
- * Fix it, but check if it's kernel or user first..
- */
-bad_area:
-	up_read(&mm->mmap_sem);
-
-bad_area_nosemaphore:
-	if (user_mode(regs)) {
-		info.si_signo = SIGSEGV;
-		info.si_errno = 0;
-		info.si_code = si_code;
-		info.si_addr = (void *) address;
-		force_sig_info(SIGSEGV, &info, tsk);
-		return;
-	}
-
-no_context:
-	/* Are we prepared to handle this kernel fault?  */
-	if (fixup_exception(regs))
-		return;
-
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- *
- */
-
-	bust_spinlocks(1);
-
-	if (oops_may_print()) {
-		__typeof__(pte_val(__pte(0))) page;
-
-		if (address < PAGE_SIZE)
-			printk(KERN_ALERT "Unable to handle kernel NULL "
-					  "pointer dereference");
-		else
-			printk(KERN_ALERT "Unable to handle kernel paging "
-					  "request");
-		printk(" at virtual address %08lx\n", address);
-		printk(KERN_ALERT "pc = %08lx\n", regs->pc);
-		page = (unsigned long)get_TTB();
-		if (page) {
-			page = ((__typeof__(page) *)page)[address >> PGDIR_SHIFT];
-			printk(KERN_ALERT "*pde = %08lx\n", page);
-			if (page & _PAGE_PRESENT) {
-				page &= PAGE_MASK;
-				address &= 0x003ff000;
-				page = ((__typeof__(page) *)
-						__va(page))[address >>
-							    PAGE_SHIFT];
-				printk(KERN_ALERT "*pte = %08lx\n", page);
-			}
-		}
-	}
-
-	die("Oops", regs, writeaccess);
-	bust_spinlocks(0);
-	do_exit(SIGKILL);
-
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
-out_of_memory:
-	up_read(&mm->mmap_sem);
-	if (is_global_init(current)) {
-		yield();
-		down_read(&mm->mmap_sem);
-		goto survive;
-	}
-	printk("VM: killing process %s\n", tsk->comm);
-	if (user_mode(regs))
-		do_group_exit(SIGKILL);
-	goto no_context;
-
-do_sigbus:
-	up_read(&mm->mmap_sem);
-
-	/*
-	 * Send a sigbus, regardless of whether we were in kernel
-	 * or user mode.
-	 */
-	info.si_signo = SIGBUS;
-	info.si_errno = 0;
-	info.si_code = BUS_ADRERR;
-	info.si_addr = (void *)address;
-	force_sig_info(SIGBUS, &info, tsk);
-
-	/* Kernel mode? Handle exceptions or die */
-	if (!user_mode(regs))
-		goto no_context;
-}
-
-#ifdef CONFIG_SH_STORE_QUEUES
-/*
- * This is a special case for the SH-4 store queues, as pages for this
- * space still need to be faulted in before it's possible to flush the
- * store queue cache for writeout to the remapped region.
- */
-#define P3_ADDR_MAX		(P4SEG_STORE_QUE + 0x04000000)
-#else
-#define P3_ADDR_MAX		P4SEG
-#endif
-
-/*
- * Called with interrupts disabled.
- */
-asmlinkage int __kprobes __do_page_fault(struct pt_regs *regs,
-					 unsigned long writeaccess,
-					 unsigned long address)
-{
-	pgd_t *pgd;
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t *pte;
-	pte_t entry;
-
-#ifdef CONFIG_SH_KGDB
-	if (kgdb_nofault && kgdb_bus_err_hook)
-		kgdb_bus_err_hook();
-#endif
-
-	/*
-	 * We don't take page faults for P1, P2, and parts of P4, these
-	 * are always mapped, whether it be due to legacy behaviour in
-	 * 29-bit mode, or due to PMB configuration in 32-bit mode.
-	 */
-	if (address >= P3SEG && address < P3_ADDR_MAX) {
-		pgd = pgd_offset_k(address);
-	} else {
-		if (unlikely(address >= TASK_SIZE || !current->mm))
-			return 1;
-
-		pgd = pgd_offset(current->mm, address);
-	}
-
-	pud = pud_offset(pgd, address);
-	if (pud_none_or_clear_bad(pud))
-		return 1;
-	pmd = pmd_offset(pud, address);
-	if (pmd_none_or_clear_bad(pmd))
-		return 1;
-
-	pte = pte_offset_kernel(pmd, address);
-	entry = *pte;
-	if (unlikely(pte_none(entry) || pte_not_present(entry)))
-		return 1;
-	if (unlikely(writeaccess && !pte_write(entry)))
-		return 1;
-
-	if (writeaccess)
-		entry = pte_mkdirty(entry);
-	entry = pte_mkyoung(entry);
-
-	set_pte(pte, entry);
-	update_mmu_cache(NULL, address, entry);
-
-	return 0;
-}
diff --git a/arch/sh/mm/fault_32.c b/arch/sh/mm/fault_32.c
new file mode 100644
index 000000000000..60d74f793a1d
--- /dev/null
+++ b/arch/sh/mm/fault_32.c
@@ -0,0 +1,303 @@
+/*
+ * Page fault handler for SH with an MMU.
+ *
+ *  Copyright (C) 1999  Niibe Yutaka
+ *  Copyright (C) 2003 - 2007  Paul Mundt
+ *
+ *  Based on linux/arch/i386/mm/fault.c:
+ *   Copyright (C) 1995  Linus Torvalds
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/hardirq.h>
+#include <linux/kprobes.h>
+#include <asm/system.h>
+#include <asm/mmu_context.h>
+#include <asm/tlbflush.h>
+#include <asm/kgdb.h>
+
+/*
+ * This routine handles page faults.  It determines the address,
+ * and the problem, and then passes it off to one of the appropriate
+ * routines.
+ */
+asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
+					unsigned long writeaccess,
+					unsigned long address)
+{
+	struct task_struct *tsk;
+	struct mm_struct *mm;
+	struct vm_area_struct * vma;
+	int si_code;
+	int fault;
+	siginfo_t info;
+
+	trace_hardirqs_on();
+	local_irq_enable();
+
+#ifdef CONFIG_SH_KGDB
+	if (kgdb_nofault && kgdb_bus_err_hook)
+		kgdb_bus_err_hook();
+#endif
+
+	tsk = current;
+	mm = tsk->mm;
+	si_code = SEGV_MAPERR;
+
+	if (unlikely(address >= TASK_SIZE)) {
+		/*
+		 * Synchronize this task's top level page-table
+		 * with the 'reference' page table.
+		 *
+		 * Do _not_ use "tsk" here. We might be inside
+		 * an interrupt in the middle of a task switch..
+		 */
+		int offset = pgd_index(address);
+		pgd_t *pgd, *pgd_k;
+		pud_t *pud, *pud_k;
+		pmd_t *pmd, *pmd_k;
+
+		pgd = get_TTB() + offset;
+		pgd_k = swapper_pg_dir + offset;
+
+		/* This will never happen with the folded page table. */
+		if (!pgd_present(*pgd)) {
+			if (!pgd_present(*pgd_k))
+				goto bad_area_nosemaphore;
+			set_pgd(pgd, *pgd_k);
+			return;
+		}
+
+		pud = pud_offset(pgd, address);
+		pud_k = pud_offset(pgd_k, address);
+		if (pud_present(*pud) || !pud_present(*pud_k))
+			goto bad_area_nosemaphore;
+		set_pud(pud, *pud_k);
+
+		pmd = pmd_offset(pud, address);
+		pmd_k = pmd_offset(pud_k, address);
+		if (pmd_present(*pmd) || !pmd_present(*pmd_k))
+			goto bad_area_nosemaphore;
+		set_pmd(pmd, *pmd_k);
+
+		return;
+	}
+
+	/*
+	 * If we're in an interrupt or have no user
+	 * context, we must not take the fault..
+	 */
+	if (in_atomic() || !mm)
+		goto no_context;
+
+	down_read(&mm->mmap_sem);
+
+	vma = find_vma(mm, address);
+	if (!vma)
+		goto bad_area;
+	if (vma->vm_start <= address)
+		goto good_area;
+	if (!(vma->vm_flags & VM_GROWSDOWN))
+		goto bad_area;
+	if (expand_stack(vma, address))
+		goto bad_area;
+/*
+ * Ok, we have a good vm_area for this memory access, so
+ * we can handle it..
+ */
+good_area:
+	si_code = SEGV_ACCERR;
+	if (writeaccess) {
+		if (!(vma->vm_flags & VM_WRITE))
+			goto bad_area;
+	} else {
+		if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
+			goto bad_area;
+	}
+
+	/*
+	 * If for any reason at all we couldn't handle the fault,
+	 * make sure we exit gracefully rather than endlessly redo
+	 * the fault.
+	 */
+survive:
+	fault = handle_mm_fault(mm, vma, address, writeaccess);
+	if (unlikely(fault & VM_FAULT_ERROR)) {
+		if (fault & VM_FAULT_OOM)
+			goto out_of_memory;
+		else if (fault & VM_FAULT_SIGBUS)
+			goto do_sigbus;
+		BUG();
+	}
+	if (fault & VM_FAULT_MAJOR)
+		tsk->maj_flt++;
+	else
+		tsk->min_flt++;
+
+	up_read(&mm->mmap_sem);
+	return;
+
+/*
+ * Something tried to access memory that isn't in our memory map..
+ * Fix it, but check if it's kernel or user first..
+ */
+bad_area:
+	up_read(&mm->mmap_sem);
+
+bad_area_nosemaphore:
+	if (user_mode(regs)) {
+		info.si_signo = SIGSEGV;
+		info.si_errno = 0;
+		info.si_code = si_code;
+		info.si_addr = (void *) address;
+		force_sig_info(SIGSEGV, &info, tsk);
+		return;
+	}
+
+no_context:
+	/* Are we prepared to handle this kernel fault?  */
+	if (fixup_exception(regs))
+		return;
+
+/*
+ * Oops. The kernel tried to access some bad page. We'll have to
+ * terminate things with extreme prejudice.
+ *
+ */
+
+	bust_spinlocks(1);
+
+	if (oops_may_print()) {
+		__typeof__(pte_val(__pte(0))) page;
+
+		if (address < PAGE_SIZE)
+			printk(KERN_ALERT "Unable to handle kernel NULL "
+					  "pointer dereference");
+		else
+			printk(KERN_ALERT "Unable to handle kernel paging "
+					  "request");
+		printk(" at virtual address %08lx\n", address);
+		printk(KERN_ALERT "pc = %08lx\n", regs->pc);
+		page = (unsigned long)get_TTB();
+		if (page) {
+			page = ((__typeof__(page) *)page)[address >> PGDIR_SHIFT];
+			printk(KERN_ALERT "*pde = %08lx\n", page);
+			if (page & _PAGE_PRESENT) {
+				page &= PAGE_MASK;
+				address &= 0x003ff000;
+				page = ((__typeof__(page) *)
+						__va(page))[address >>
+							    PAGE_SHIFT];
+				printk(KERN_ALERT "*pte = %08lx\n", page);
+			}
+		}
+	}
+
+	die("Oops", regs, writeaccess);
+	bust_spinlocks(0);
+	do_exit(SIGKILL);
+
+/*
+ * We ran out of memory, or some other thing happened to us that made
+ * us unable to handle the page fault gracefully.
+ */
+out_of_memory:
+	up_read(&mm->mmap_sem);
+	if (is_global_init(current)) {
+		yield();
+		down_read(&mm->mmap_sem);
+		goto survive;
+	}
+	printk("VM: killing process %s\n", tsk->comm);
+	if (user_mode(regs))
+		do_group_exit(SIGKILL);
+	goto no_context;
+
+do_sigbus:
+	up_read(&mm->mmap_sem);
+
+	/*
+	 * Send a sigbus, regardless of whether we were in kernel
+	 * or user mode.
+	 */
+	info.si_signo = SIGBUS;
+	info.si_errno = 0;
+	info.si_code = BUS_ADRERR;
+	info.si_addr = (void *)address;
+	force_sig_info(SIGBUS, &info, tsk);
+
+	/* Kernel mode? Handle exceptions or die */
+	if (!user_mode(regs))
+		goto no_context;
+}
+
+#ifdef CONFIG_SH_STORE_QUEUES
+/*
+ * This is a special case for the SH-4 store queues, as pages for this
+ * space still need to be faulted in before it's possible to flush the
+ * store queue cache for writeout to the remapped region.
+ */
+#define P3_ADDR_MAX		(P4SEG_STORE_QUE + 0x04000000)
+#else
+#define P3_ADDR_MAX		P4SEG
+#endif
+
+/*
+ * Called with interrupts disabled.
+ */
+asmlinkage int __kprobes __do_page_fault(struct pt_regs *regs,
+					 unsigned long writeaccess,
+					 unsigned long address)
+{
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte;
+	pte_t entry;
+
+#ifdef CONFIG_SH_KGDB
+	if (kgdb_nofault && kgdb_bus_err_hook)
+		kgdb_bus_err_hook();
+#endif
+
+	/*
+	 * We don't take page faults for P1, P2, and parts of P4, these
+	 * are always mapped, whether it be due to legacy behaviour in
+	 * 29-bit mode, or due to PMB configuration in 32-bit mode.
+	 */
+	if (address >= P3SEG && address < P3_ADDR_MAX) {
+		pgd = pgd_offset_k(address);
+	} else {
+		if (unlikely(address >= TASK_SIZE || !current->mm))
+			return 1;
+
+		pgd = pgd_offset(current->mm, address);
+	}
+
+	pud = pud_offset(pgd, address);
+	if (pud_none_or_clear_bad(pud))
+		return 1;
+	pmd = pmd_offset(pud, address);
+	if (pmd_none_or_clear_bad(pmd))
+		return 1;
+
+	pte = pte_offset_kernel(pmd, address);
+	entry = *pte;
+	if (unlikely(pte_none(entry) || pte_not_present(entry)))
+		return 1;
+	if (unlikely(writeaccess && !pte_write(entry)))
+		return 1;
+
+	if (writeaccess)
+		entry = pte_mkdirty(entry);
+	entry = pte_mkyoung(entry);
+
+	set_pte(pte, entry);
+	update_mmu_cache(NULL, address, entry);
+
+	return 0;
+}
diff --git a/arch/sh/mm/fault_64.c b/arch/sh/mm/fault_64.c
new file mode 100644
index 000000000000..1469aa70bc78
--- /dev/null
+++ b/arch/sh/mm/fault_64.c
@@ -0,0 +1,279 @@
+/*
+ * The SH64 TLB miss.
+ *
+ * Original code from fault.c
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ * Fast PTE->TLB refill path
+ * Copyright (C) 2003 Richard.Curnow@superh.com
+ *
+ * IMPORTANT NOTES :
+ * The do_fast_page_fault function is called from a context in entry.S
+ * where very few registers have been saved.  In particular, the code in
+ * this file must be compiled not to use ANY caller-save registers that
+ * are not part of the restricted save set.  Also, it means that code in
+ * this file must not make calls to functions elsewhere in the kernel, or
+ * else the excepting context will see corruption in its caller-save
+ * registers.  Plus, the entry.S save area is non-reentrant, so this code
+ * has to run with SR.BL==1, i.e. no interrupts taken inside it and panic
+ * on any exception.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <asm/system.h>
+#include <asm/tlb.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <asm/pgalloc.h>
+#include <asm/mmu_context.h>
+#include <asm/cpu/registers.h>
+
+/* Callable from fault.c, so not static */
+inline void __do_tlb_refill(unsigned long address,
+                            unsigned long long is_text_not_data, pte_t *pte)
+{
+	unsigned long long ptel;
+	unsigned long long pteh=0;
+	struct tlb_info *tlbp;
+	unsigned long long next;
+
+	/* Get PTEL first */
+	ptel = pte_val(*pte);
+
+	/*
+	 * Set PTEH register
+	 */
+	pteh = address & MMU_VPN_MASK;
+
+	/* Sign extend based on neff. */
+#if (NEFF == 32)
+	/* Faster sign extension */
+	pteh = (unsigned long long)(signed long long)(signed long)pteh;
+#else
+	/* General case */
+	pteh = (pteh & NEFF_SIGN) ? (pteh | NEFF_MASK) : pteh;
+#endif
+
+	/* Set the ASID. */
+	pteh |= get_asid() << PTEH_ASID_SHIFT;
+	pteh |= PTEH_VALID;
+
+	/* Set PTEL register, set_pte has performed the sign extension */
+	ptel &= _PAGE_FLAGS_HARDWARE_MASK; /* drop software flags */
+
+	tlbp = is_text_not_data ? &(cpu_data->itlb) : &(cpu_data->dtlb);
+	next = tlbp->next;
+	__flush_tlb_slot(next);
+	asm volatile ("putcfg %0,1,%2\n\n\t"
+		      "putcfg %0,0,%1\n"
+		      :  : "r" (next), "r" (pteh), "r" (ptel) );
+
+	next += TLB_STEP;
+	if (next > tlbp->last) next = tlbp->first;
+	tlbp->next = next;
+
+}
+
+static int handle_vmalloc_fault(struct mm_struct *mm,
+				unsigned long protection_flags,
+                                unsigned long long textaccess,
+				unsigned long address)
+{
+	pgd_t *dir;
+	pud_t *pud;
+	pmd_t *pmd;
+	static pte_t *pte;
+	pte_t entry;
+
+	dir = pgd_offset_k(address);
+
+	pud = pud_offset(dir, address);
+	if (pud_none_or_clear_bad(pud))
+		return 0;
+
+	pmd = pmd_offset(pud, address);
+	if (pmd_none_or_clear_bad(pmd))
+		return 0;
+
+	pte = pte_offset_kernel(pmd, address);
+	entry = *pte;
+
+	if (pte_none(entry) || !pte_present(entry))
+		return 0;
+	if ((pte_val(entry) & protection_flags) != protection_flags)
+		return 0;
+
+        __do_tlb_refill(address, textaccess, pte);
+
+	return 1;
+}
+
+static int handle_tlbmiss(struct mm_struct *mm,
+			  unsigned long long protection_flags,
+			  unsigned long long textaccess,
+			  unsigned long address)
+{
+	pgd_t *dir;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte;
+	pte_t entry;
+
+	/* NB. The PGD currently only contains a single entry - there is no
+	   page table tree stored for the top half of the address space since
+	   virtual pages in that region should never be mapped in user mode.
+	   (In kernel mode, the only things in that region are the 512Mb super
+	   page (locked in), and vmalloc (modules) +  I/O device pages (handled
+	   by handle_vmalloc_fault), so no PGD for the upper half is required
+	   by kernel mode either).
+
+	   See how mm->pgd is allocated and initialised in pgd_alloc to see why
+	   the next test is necessary.  - RPC */
+	if (address >= (unsigned long) TASK_SIZE)
+		/* upper half - never has page table entries. */
+		return 0;
+
+	dir = pgd_offset(mm, address);
+	if (pgd_none(*dir) || !pgd_present(*dir))
+		return 0;
+	if (!pgd_present(*dir))
+		return 0;
+
+	pud = pud_offset(dir, address);
+	if (pud_none(*pud) || !pud_present(*pud))
+		return 0;
+
+	pmd = pmd_offset(pud, address);
+	if (pmd_none(*pmd) || !pmd_present(*pmd))
+		return 0;
+
+	pte = pte_offset_kernel(pmd, address);
+	entry = *pte;
+
+	if (pte_none(entry) || !pte_present(entry))
+		return 0;
+
+	/*
+	 * If the page doesn't have sufficient protection bits set to
+	 * service the kind of fault being handled, there's not much
+	 * point doing the TLB refill.  Punt the fault to the general
+	 * handler.
+	 */
+	if ((pte_val(entry) & protection_flags) != protection_flags)
+		return 0;
+
+        __do_tlb_refill(address, textaccess, pte);
+
+	return 1;
+}
+
+/*
+ * Put all this information into one structure so that everything is just
+ * arithmetic relative to a single base address.  This reduces the number
+ * of movi/shori pairs needed just to load addresses of static data.
+ */
+struct expevt_lookup {
+	unsigned short protection_flags[8];
+	unsigned char  is_text_access[8];
+	unsigned char  is_write_access[8];
+};
+
+#define PRU (1<<9)
+#define PRW (1<<8)
+#define PRX (1<<7)
+#define PRR (1<<6)
+
+#define DIRTY (_PAGE_DIRTY | _PAGE_ACCESSED)
+#define YOUNG (_PAGE_ACCESSED)
+
+/* Sized as 8 rather than 4 to allow checking the PTE's PRU bit against whether
+   the fault happened in user mode or privileged mode. */
+static struct expevt_lookup expevt_lookup_table = {
+	.protection_flags = {PRX, PRX, 0, 0, PRR, PRR, PRW, PRW},
+	.is_text_access   = {1,   1,   0, 0, 0,   0,   0,   0}
+};
+
+/*
+   This routine handles page faults that can be serviced just by refilling a
+   TLB entry from an existing page table entry.  (This case represents a very
+   large majority of page faults.) Return 1 if the fault was successfully
+   handled.  Return 0 if the fault could not be handled.  (This leads into the
+   general fault handling in fault.c which deals with mapping file-backed
+   pages, stack growth, segmentation faults, swapping etc etc)
+ */
+asmlinkage int do_fast_page_fault(unsigned long long ssr_md,
+				  unsigned long long expevt,
+			          unsigned long address)
+{
+	struct task_struct *tsk;
+	struct mm_struct *mm;
+	unsigned long long textaccess;
+	unsigned long long protection_flags;
+	unsigned long long index;
+	unsigned long long expevt4;
+
+	/* The next few lines implement a way of hashing EXPEVT into a
+	 * small array index which can be used to lookup parameters
+	 * specific to the type of TLBMISS being handled.
+	 *
+	 * Note:
+	 *	ITLBMISS has EXPEVT==0xa40
+	 *	RTLBMISS has EXPEVT==0x040
+	 *	WTLBMISS has EXPEVT==0x060
+	 */
+	expevt4 = (expevt >> 4);
+	/* TODO : xor ssr_md into this expression too. Then we can check
+	 * that PRU is set when it needs to be. */
+	index = expevt4 ^ (expevt4 >> 5);
+	index &= 7;
+	protection_flags = expevt_lookup_table.protection_flags[index];
+	textaccess       = expevt_lookup_table.is_text_access[index];
+
+#ifdef CONFIG_SH64_PROC_TLB
+	++calls_to_do_fast_page_fault;
+#endif
+
+	/* SIM
+	 * Note this is now called with interrupts still disabled
+	 * This is to cope with being called for a missing IO port
+	 * address with interrupts disabled. This should be fixed as
+	 * soon as we have a better 'fast path' miss handler.
+	 *
+	 * Plus take care how you try and debug this stuff.
+	 * For example, writing debug data to a port which you
+	 * have just faulted on is not going to work.
+	 */
+
+	tsk = current;
+	mm = tsk->mm;
+
+	if ((address >= VMALLOC_START && address < VMALLOC_END) ||
+	    (address >= IOBASE_VADDR  && address < IOBASE_END)) {
+		if (ssr_md)
+			/*
+			 * Process-contexts can never have this address
+			 * range mapped
+			 */
+			if (handle_vmalloc_fault(mm, protection_flags,
+						 textaccess, address))
+				return 1;
+	} else if (!in_interrupt() && mm) {
+		if (handle_tlbmiss(mm, protection_flags, textaccess, address))
+			return 1;
+	}
+
+	return 0;
+}
diff --git a/arch/sh64/mm/tlbmiss.c b/arch/sh64/mm/tlbmiss.c
deleted file mode 100644
index b767d6cff72f..000000000000
--- a/arch/sh64/mm/tlbmiss.c
+++ /dev/null
@@ -1,279 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/tlbmiss.c
- *
- * Original code from fault.c
- * Copyright (C) 2000, 2001  Paolo Alberelli
- *
- * Fast PTE->TLB refill path
- * Copyright (C) 2003 Richard.Curnow@superh.com
- *
- * IMPORTANT NOTES :
- * The do_fast_page_fault function is called from a context in entry.S where very few registers
- * have been saved.  In particular, the code in this file must be compiled not to use ANY
- * caller-save registers that are not part of the restricted save set.  Also, it means that
- * code in this file must not make calls to functions elsewhere in the kernel, or else the
- * excepting context will see corruption in its caller-save registers.  Plus, the entry.S save
- * area is non-reentrant, so this code has to run with SR.BL==1, i.e. no interrupts taken inside
- * it and panic on any exception.
- *
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-
-#include <asm/system.h>
-#include <asm/tlb.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/pgalloc.h>
-#include <asm/mmu_context.h>
-#include <asm/registers.h>		/* required by inline asm statements */
-
-/* Callable from fault.c, so not static */
-inline void __do_tlb_refill(unsigned long address,
-                            unsigned long long is_text_not_data, pte_t *pte)
-{
-	unsigned long long ptel;
-	unsigned long long pteh=0;
-	struct tlb_info *tlbp;
-	unsigned long long next;
-
-	/* Get PTEL first */
-	ptel = pte_val(*pte);
-
-	/*
-	 * Set PTEH register
-	 */
-	pteh = address & MMU_VPN_MASK;
-
-	/* Sign extend based on neff. */
-#if (NEFF == 32)
-	/* Faster sign extension */
-	pteh = (unsigned long long)(signed long long)(signed long)pteh;
-#else
-	/* General case */
-	pteh = (pteh & NEFF_SIGN) ? (pteh | NEFF_MASK) : pteh;
-#endif
-
-	/* Set the ASID. */
-	pteh |= get_asid() << PTEH_ASID_SHIFT;
-	pteh |= PTEH_VALID;
-
-	/* Set PTEL register, set_pte has performed the sign extension */
-	ptel &= _PAGE_FLAGS_HARDWARE_MASK; /* drop software flags */
-
-	tlbp = is_text_not_data ? &(cpu_data->itlb) : &(cpu_data->dtlb);
-	next = tlbp->next;
-	__flush_tlb_slot(next);
-	asm volatile ("putcfg %0,1,%2\n\n\t"
-		      "putcfg %0,0,%1\n"
-		      :  : "r" (next), "r" (pteh), "r" (ptel) );
-
-	next += TLB_STEP;
-	if (next > tlbp->last) next = tlbp->first;
-	tlbp->next = next;
-
-}
-
-static int handle_vmalloc_fault(struct mm_struct *mm, unsigned long protection_flags,
-                                unsigned long long textaccess,
-				unsigned long address)
-{
-	pgd_t *dir;
-	pmd_t *pmd;
-	static pte_t *pte;
-	pte_t entry;
-
-	dir = pgd_offset_k(address);
-	pmd = pmd_offset(dir, address);
-
-	if (pmd_none(*pmd)) {
-		return 0;
-	}
-
-	if (pmd_bad(*pmd)) {
-		pmd_clear(pmd);
-		return 0;
-	}
-
-	pte = pte_offset_kernel(pmd, address);
-	entry = *pte;
-
-	if (pte_none(entry) || !pte_present(entry)) {
-		return 0;
-	}
-
-	if ((pte_val(entry) & protection_flags) != protection_flags) {
-		return 0;
-	}
-
-        __do_tlb_refill(address, textaccess, pte);
-
-	return 1;
-}
-
-static int handle_tlbmiss(struct mm_struct *mm, unsigned long long protection_flags,
-			unsigned long long textaccess,
-			unsigned long address)
-{
-	pgd_t *dir;
-	pmd_t *pmd;
-	pte_t *pte;
-	pte_t entry;
-
-	/* NB. The PGD currently only contains a single entry - there is no
-	   page table tree stored for the top half of the address space since
-	   virtual pages in that region should never be mapped in user mode.
-	   (In kernel mode, the only things in that region are the 512Mb super
-	   page (locked in), and vmalloc (modules) +  I/O device pages (handled
-	   by handle_vmalloc_fault), so no PGD for the upper half is required
-	   by kernel mode either).
-
-	   See how mm->pgd is allocated and initialised in pgd_alloc to see why
-	   the next test is necessary.  - RPC */
-	if (address >= (unsigned long) TASK_SIZE) {
-		/* upper half - never has page table entries. */
-		return 0;
-	}
-	dir = pgd_offset(mm, address);
-	if (pgd_none(*dir)) {
-		return 0;
-	}
-	if (!pgd_present(*dir)) {
-		return 0;
-	}
-
-	pmd = pmd_offset(dir, address);
-	if (pmd_none(*pmd)) {
-		return 0;
-	}
-	if (!pmd_present(*pmd)) {
-		return 0;
-	}
-	pte = pte_offset_kernel(pmd, address);
-	entry = *pte;
-	if (pte_none(entry)) {
-		return 0;
-	}
-	if (!pte_present(entry)) {
-		return 0;
-	}
-
-	/* If the page doesn't have sufficient protection bits set to service the
-	   kind of fault being handled, there's not much point doing the TLB refill.
-	   Punt the fault to the general handler. */
-	if ((pte_val(entry) & protection_flags) != protection_flags) {
-		return 0;
-	}
-
-        __do_tlb_refill(address, textaccess, pte);
-
-	return 1;
-}
-
-/* Put all this information into one structure so that everything is just arithmetic
-   relative to a single base address.  This reduces the number of movi/shori pairs needed
-   just to load addresses of static data. */
-struct expevt_lookup {
-	unsigned short protection_flags[8];
-	unsigned char  is_text_access[8];
-	unsigned char  is_write_access[8];
-};
-
-#define PRU (1<<9)
-#define PRW (1<<8)
-#define PRX (1<<7)
-#define PRR (1<<6)
-
-#define DIRTY (_PAGE_DIRTY | _PAGE_ACCESSED)
-#define YOUNG (_PAGE_ACCESSED)
-
-/* Sized as 8 rather than 4 to allow checking the PTE's PRU bit against whether
-   the fault happened in user mode or privileged mode. */
-static struct expevt_lookup expevt_lookup_table = {
-	.protection_flags = {PRX, PRX, 0, 0, PRR, PRR, PRW, PRW},
-	.is_text_access   = {1,   1,   0, 0, 0,   0,   0,   0}
-};
-
-/*
-   This routine handles page faults that can be serviced just by refilling a
-   TLB entry from an existing page table entry.  (This case represents a very
-   large majority of page faults.) Return 1 if the fault was successfully
-   handled.  Return 0 if the fault could not be handled.  (This leads into the
-   general fault handling in fault.c which deals with mapping file-backed
-   pages, stack growth, segmentation faults, swapping etc etc)
- */
-asmlinkage int do_fast_page_fault(unsigned long long ssr_md, unsigned long long expevt,
-			          unsigned long address)
-{
-	struct task_struct *tsk;
-	struct mm_struct *mm;
-	unsigned long long textaccess;
-	unsigned long long protection_flags;
-	unsigned long long index;
-	unsigned long long expevt4;
-
-	/* The next few lines implement a way of hashing EXPEVT into a small array index
-	   which can be used to lookup parameters specific to the type of TLBMISS being
-	   handled.  Note:
-	   ITLBMISS has EXPEVT==0xa40
-	   RTLBMISS has EXPEVT==0x040
-	   WTLBMISS has EXPEVT==0x060
-	*/
-
-	expevt4 = (expevt >> 4);
-	/* TODO : xor ssr_md into this expression too.  Then we can check that PRU is set
-	   when it needs to be. */
-	index = expevt4 ^ (expevt4 >> 5);
-	index &= 7;
-	protection_flags = expevt_lookup_table.protection_flags[index];
-	textaccess       = expevt_lookup_table.is_text_access[index];
-
-#ifdef CONFIG_SH64_PROC_TLB
-	++calls_to_do_fast_page_fault;
-#endif
-
-	/* SIM
-	 * Note this is now called with interrupts still disabled
-	 * This is to cope with being called for a missing IO port
-	 * address with interrupts disabled. This should be fixed as
-	 * soon as we have a better 'fast path' miss handler.
-	 *
-	 * Plus take care how you try and debug this stuff.
-	 * For example, writing debug data to a port which you
-	 * have just faulted on is not going to work.
-	 */
-
-	tsk = current;
-	mm = tsk->mm;
-
-	if ((address >= VMALLOC_START && address < VMALLOC_END) ||
-	    (address >= IOBASE_VADDR  && address < IOBASE_END)) {
-		if (ssr_md) {
-			/* Process-contexts can never have this address range mapped */
-			if (handle_vmalloc_fault(mm, protection_flags, textaccess, address)) {
-				return 1;
-			}
-		}
-	} else if (!in_interrupt() && mm) {
-		if (handle_tlbmiss(mm, protection_flags, textaccess, address)) {
-			return 1;
-		}
-	}
-
-	return 0;
-}
-
-- 
cgit v1.2.3-59-g8ed1b


From 5a4f7c66be981c6b5f44a4d66a14ea6ac9b7b6b0 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 18:08:06 +0900
Subject: sh: Share bug/debug traps across _32 and _64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/Makefile_32     |  2 +-
 arch/sh/kernel/Makefile_64     |  2 +-
 arch/sh/kernel/cpu/sh2/entry.S |  2 +-
 arch/sh/kernel/process_32.c    | 46 -----------------------------
 arch/sh/kernel/process_64.c    | 15 ++++------
 arch/sh/kernel/traps.c         | 66 ++++++++++++++++++++++++++++++++++++++++++
 arch/sh/kernel/traps_32.c      | 25 +---------------
 include/asm-sh/ptrace.h        |  2 +-
 include/asm-sh/system.h        | 25 ++++++++++++----
 include/asm-sh/types.h         |  6 ++++
 10 files changed, 102 insertions(+), 89 deletions(-)
 create mode 100644 arch/sh/kernel/traps.c

(limited to 'arch')

diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index 34e8fa0d40cc..990ba74db0d6 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/arch/sh/kernel/Makefile_32
@@ -6,7 +6,7 @@ extra-y	:= head_32.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_32.o \
 	   ptrace_32.o semaphore.o setup.o signal_32.o sys_sh.o sys_sh32.o \
-	   syscalls_32.o time.o topology.o traps_32.o
+	   syscalls_32.o time.o topology.o traps.o traps_32.o
 
 obj-y				+= cpu/ timers/
 obj-$(CONFIG_VSYSCALL)		+= vsyscall/
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index aeac4006df7b..10e3ae1c64b8 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/arch/sh/kernel/Makefile_64
@@ -2,7 +2,7 @@ extra-y	:= head_64.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
 	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh.o sys_sh64.o \
-	   syscalls_64.o time.o topology.o traps_64.o
+	   syscalls_64.o time.o topology.o traps.o traps_64.o
 
 obj-y				+= cpu/ timers/
 obj-$(CONFIG_VSYSCALL)		+= vsyscall/
diff --git a/arch/sh/kernel/cpu/sh2/entry.S b/arch/sh/kernel/cpu/sh2/entry.S
index ee8f1fe84b08..4ff2334b4a38 100644
--- a/arch/sh/kernel/cpu/sh2/entry.S
+++ b/arch/sh/kernel/cpu/sh2/entry.S
@@ -250,7 +250,7 @@ ENTRY(sh_bios_handler)
 1:	.long	gdb_vbr_vector
 #endif /* CONFIG_SH_STANDARD_BIOS */
 
-ENTRY(address_error_handler)
+ENTRY(address_error_trap_handler)
 	mov	r15,r4				! regs
 	add	#4,r4
 	mov	#OFF_PC,r0
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index c9291f462311..b48324867eee 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -482,49 +482,3 @@ asmlinkage void break_point_trap(void)
 
 	force_sig(SIGTRAP, current);
 }
-
-/*
- * Generic trap handler.
- */
-asmlinkage void debug_trap_handler(unsigned long r4, unsigned long r5,
-				   unsigned long r6, unsigned long r7,
-				   struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-
-	/* Rewind */
-	regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
-
-	if (notify_die(DIE_TRAP, "debug trap", regs, 0, regs->tra & 0xff,
-		       SIGTRAP) == NOTIFY_STOP)
-		return;
-
-	force_sig(SIGTRAP, current);
-}
-
-/*
- * Special handler for BUG() traps.
- */
-asmlinkage void bug_trap_handler(unsigned long r4, unsigned long r5,
-				 unsigned long r6, unsigned long r7,
-				 struct pt_regs __regs)
-{
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-
-	/* Rewind */
-	regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
-
-	if (notify_die(DIE_TRAP, "bug trap", regs, 0, TRAPA_BUG_OPCODE & 0xff,
-		       SIGTRAP) == NOTIFY_STOP)
-		return;
-
-#ifdef CONFIG_BUG
-	if (__kernel_text_address(instruction_pointer(regs))) {
-		u16 insn = *(u16 *)instruction_pointer(regs);
-		if (insn == TRAPA_BUG_OPCODE)
-			handle_BUG(regs);
-	}
-#endif
-
-	force_sig(SIGTRAP, current);
-}
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index 47415671da0c..92d01465eb87 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -1,12 +1,10 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
+ * arch/sh/kernel/process_64.c
  *
- * arch/sh64/kernel/process.c
+ * This file handles the architecture-dependent parts of process handling..
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003  Paul Mundt
+ * Copyright (C) 2003 - 2007  Paul Mundt
  * Copyright (C) 2003, 2004 Richard Curnow
  *
  * Started from SH3/4 version:
@@ -15,10 +13,9 @@
  *   In turn started from i386 version:
  *     Copyright (C) 1995  Linus Torvalds
  *
- */
-
-/*
- * This file handles the architecture-dependent parts of process handling..
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 #include <linux/mm.h>
 #include <linux/fs.h>
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
new file mode 100644
index 000000000000..bf70827b17cc
--- /dev/null
+++ b/arch/sh/kernel/traps.c
@@ -0,0 +1,66 @@
+#include <linux/bug.h>
+#include <linux/io.h>
+#include <linux/types.h>
+#include <linux/kdebug.h>
+#include <asm/system.h>
+
+#ifdef CONFIG_BUG
+static void handle_BUG(struct pt_regs *regs)
+{
+	enum bug_trap_type tt;
+	tt = report_bug(regs->pc, regs);
+	if (tt == BUG_TRAP_TYPE_WARN) {
+		regs->pc += instruction_size(regs->pc);
+		return;
+	}
+
+	die("Kernel BUG", regs, TRAPA_BUG_OPCODE & 0xff);
+}
+
+int is_valid_bugaddr(unsigned long addr)
+{
+	return addr >= PAGE_OFFSET;
+}
+#endif
+
+/*
+ * Generic trap handler.
+ */
+BUILD_TRAP_HANDLER(debug)
+{
+	TRAP_HANDLER_DECL;
+
+	/* Rewind */
+	regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
+
+	if (notify_die(DIE_TRAP, "debug trap", regs, 0, vec & 0xff,
+		       SIGTRAP) == NOTIFY_STOP)
+		return;
+
+	force_sig(SIGTRAP, current);
+}
+
+/*
+ * Special handler for BUG() traps.
+ */
+BUILD_TRAP_HANDLER(bug)
+{
+	TRAP_HANDLER_DECL;
+
+	/* Rewind */
+	regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
+
+	if (notify_die(DIE_TRAP, "bug trap", regs, 0, TRAPA_BUG_OPCODE & 0xff,
+		       SIGTRAP) == NOTIFY_STOP)
+		return;
+
+#ifdef CONFIG_BUG
+	if (__kernel_text_address(instruction_pointer(regs))) {
+		opcode_t insn = *(opcode_t *)instruction_pointer(regs);
+		if (insn == TRAPA_BUG_OPCODE)
+			handle_BUG(regs);
+	}
+#endif
+
+	force_sig(SIGTRAP, current);
+}
diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c
index cf99111cb33f..0d05fb3c48e3 100644
--- a/arch/sh/kernel/traps_32.c
+++ b/arch/sh/kernel/traps_32.c
@@ -837,10 +837,6 @@ void *set_exception_table_vec(unsigned int vec, void *handler)
 	return old_handler;
 }
 
-extern asmlinkage void address_error_handler(unsigned long r4, unsigned long r5,
-					     unsigned long r6, unsigned long r7,
-					     struct pt_regs __regs);
-
 void __init trap_init(void)
 {
 	set_exception_table_vec(TRAP_RESERVED_INST, do_reserved_inst);
@@ -866,7 +862,7 @@ void __init trap_init(void)
 #endif
 
 #ifdef CONFIG_CPU_SH2
-	set_exception_table_vec(TRAP_ADDRESS_ERROR, address_error_handler);
+	set_exception_table_vec(TRAP_ADDRESS_ERROR, address_error_trap_handler);
 #endif
 #ifdef CONFIG_CPU_SH2A
 	set_exception_table_vec(TRAP_DIVZERO_ERROR, do_divide_error);
@@ -877,25 +873,6 @@ void __init trap_init(void)
 	per_cpu_trap_init();
 }
 
-#ifdef CONFIG_BUG
-void handle_BUG(struct pt_regs *regs)
-{
-	enum bug_trap_type tt;
-	tt = report_bug(regs->pc, regs);
-	if (tt == BUG_TRAP_TYPE_WARN) {
-		regs->pc += 2;
-		return;
-	}
-
-	die("Kernel BUG", regs, TRAPA_BUG_OPCODE & 0xff);
-}
-
-int is_valid_bugaddr(unsigned long addr)
-{
-	return addr >= PAGE_OFFSET;
-}
-#endif
-
 void show_trace(struct task_struct *tsk, unsigned long *sp,
 		struct pt_regs *regs)
 {
diff --git a/include/asm-sh/ptrace.h b/include/asm-sh/ptrace.h
index a83a7b45ba6f..8d6c92b3e770 100644
--- a/include/asm-sh/ptrace.h
+++ b/include/asm-sh/ptrace.h
@@ -95,7 +95,7 @@ struct pt_dspregs {
 #include <asm/addrspace.h>
 
 #define user_mode(regs)			(((regs)->sr & 0x40000000)==0)
-#define instruction_pointer(regs)	((regs)->pc)
+#define instruction_pointer(regs)	((unsigned long)(regs)->pc)
 
 extern void show_regs(struct pt_regs *);
 
diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h
index 0cfa96aa5844..6b02dfd587ea 100644
--- a/include/asm-sh/system.h
+++ b/include/asm-sh/system.h
@@ -185,12 +185,25 @@ void default_idle(void);
 void per_cpu_trap_init(void);
 
 asmlinkage void break_point_trap(void);
-asmlinkage void debug_trap_handler(unsigned long r4, unsigned long r5,
-				   unsigned long r6, unsigned long r7,
-				   struct pt_regs __regs);
-asmlinkage void bug_trap_handler(unsigned long r4, unsigned long r5,
-				 unsigned long r6, unsigned long r7,
-				 struct pt_regs __regs);
+
+#ifdef CONFIG_SUPERH32
+#define BUILD_TRAP_HANDLER(name)					\
+asmlinkage void name##_trap_handler(unsigned long r4, unsigned long r5,	\
+				    unsigned long r6, unsigned long r7,	\
+				    struct pt_regs __regs)
+
+#define TRAP_HANDLER_DECL				\
+	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);	\
+	unsigned int vec = regs->tra;
+#else
+#define BUILD_TRAP_HANDLER(name)	\
+asmlinkage void name##_trap_handler(unsigned int vec, struct pt_regs *regs)
+#define TRAP_HANDLER_DECL
+#endif
+
+BUILD_TRAP_HANDLER(address_error);
+BUILD_TRAP_HANDLER(debug);
+BUILD_TRAP_HANDLER(bug);
 
 #define arch_align_stack(x) (x)
 
diff --git a/include/asm-sh/types.h b/include/asm-sh/types.h
index 7ba69d9707ef..a6e1d4126e67 100644
--- a/include/asm-sh/types.h
+++ b/include/asm-sh/types.h
@@ -52,6 +52,12 @@ typedef unsigned long long u64;
 
 typedef u32 dma_addr_t;
 
+#ifdef CONFIG_SUPERH32
+typedef u16 opcode_t;
+#else
+typedef u32 opcode_t;
+#endif
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __KERNEL__ */
-- 
cgit v1.2.3-59-g8ed1b


From ac490a4893d37279f704876d430c3683071398b2 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 18:26:28 +0900
Subject: sh: Move quad-word real-address I/O defs to io.h.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/ptrace_64.c | 1 -
 include/asm-sh/io.h        | 5 +++++
 2 files changed, 5 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index 14e7d5e5679a..51bb546365cb 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -253,7 +253,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 asmlinkage int sh64_ptrace(long request, long pid, long addr, long data)
 {
-	extern void poke_real_address_q(unsigned long long addr, unsigned long long data);
 #define WPC_DBRMODE 0x0d104008
 	static int first_call = 1;
 
diff --git a/include/asm-sh/io.h b/include/asm-sh/io.h
index 556aabe844c5..74305edceeeb 100644
--- a/include/asm-sh/io.h
+++ b/include/asm-sh/io.h
@@ -248,6 +248,11 @@ static inline void ctrl_delay(void)
 #endif
 }
 
+/* Quad-word real-mode I/O, don't ask.. */
+unsigned long long peek_real_address_q(unsigned long long addr);
+unsigned long long poke_real_address_q(unsigned long long addr,
+				       unsigned long long val);
+
 #define IO_SPACE_LIMIT 0xffffffff
 
 #if !defined(CONFIG_MMU)
-- 
cgit v1.2.3-59-g8ed1b


From 92b59258b8e854dd223bbb196f0c18b8cb7e6c6e Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 18:26:54 +0900
Subject: sh: Kill off do_NMI stub in SH-5 ex table.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/sh5/entry.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S
index 2f505a7cb5f9..81010b9308b2 100644
--- a/arch/sh/kernel/cpu/sh5/entry.S
+++ b/arch/sh/kernel/cpu/sh5/entry.S
@@ -161,7 +161,7 @@ trap_jtable:
 	.long	system_call				/* 0x160 */
 	.long	do_reserved_inst		/* 0x180 */
 	.long	do_illegal_slot_inst	/* 0x1A0 */
-	.long	do_NMI			/* 0x1C0 */
+	.long	do_exception_error		/* 0x1C0 - NMI */
 	.long	do_exception_error		/* 0x1E0 */
 	.rept 15
 		.long do_IRQ		/* 0x200 - 0x3C0 */
-- 
cgit v1.2.3-59-g8ed1b


From d1839136098e281ece46520200599ef94edca612 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 18:27:20 +0900
Subject: sh: Plug in simple SH-5 subtype probing.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/sh5/Makefile |  4 +--
 arch/sh/kernel/cpu/sh5/probe.c  | 76 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 78 insertions(+), 2 deletions(-)
 create mode 100644 arch/sh/kernel/cpu/sh5/probe.c

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/sh5/Makefile b/arch/sh/kernel/cpu/sh5/Makefile
index 6d388e8d8991..c7a9873c8d57 100644
--- a/arch/sh/kernel/cpu/sh5/Makefile
+++ b/arch/sh/kernel/cpu/sh5/Makefile
@@ -1,4 +1,4 @@
-obj-y := entry.o switchto.o
+obj-y := entry.o probe.o switchto.o
 
-obj-$(CONFIG_KALLSYMS)		+= unwind.o
 obj-$(CONFIG_SH_FPU)		+= fpu.o
+obj-$(CONFIG_KALLSYMS)		+= unwind.o
diff --git a/arch/sh/kernel/cpu/sh5/probe.c b/arch/sh/kernel/cpu/sh5/probe.c
new file mode 100644
index 000000000000..15d167fd0ae7
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh5/probe.c
@@ -0,0 +1,76 @@
+/*
+ * arch/sh/kernel/cpu/sh5/probe.c
+ *
+ * CPU Subtype Probing for SH-5.
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003 - 2007  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/string.h>
+#include <asm/processor.h>
+#include <asm/cache.h>
+
+int __init detect_cpu_and_cache_system(void)
+{
+	unsigned long long cir;
+
+	/* Do peeks in real mode to avoid having to set up a mapping for the
+	   WPC registers. On SH5-101 cut2, such a mapping would be exposed to
+	   an address translation erratum which would make it hard to set up
+	   correctly. */
+	cir = peek_real_address_q(0x0d000008);
+	if ((cir & 0xffff) == 0x5103) {
+		boot_cpu_data.type = CPU_SH5_103;
+	} else if (((cir >> 32) & 0xffff) == 0x51e2) {
+		/* CPU.VCR aliased at CIR address on SH5-101 */
+		boot_cpu_data.type = CPU_SH5_101;
+	} else {
+		boot_cpu_data.type = CPU_SH_NONE;
+	}
+
+	/*
+	 * First, setup some sane values for the I-cache.
+	 */
+	boot_cpu_data.icache.ways		= 4;
+	boot_cpu_data.icache.sets		= 256;
+	boot_cpu_data.icache.linesz		= L1_CACHE_BYTES;
+
+#if 0
+	/*
+	 * FIXME: This can probably be cleaned up a bit as well.. for example,
+	 * do we really need the way shift _and_ the way_step_shift ?? Judging
+	 * by the existing code, I would guess no.. is there any valid reason
+	 * why we need to be tracking this around?
+	 */
+	boot_cpu_data.icache.way_shift		= 13;
+	boot_cpu_data.icache.entry_shift	= 5;
+	boot_cpu_data.icache.set_shift		= 4;
+	boot_cpu_data.icache.way_step_shift	= 16;
+	boot_cpu_data.icache.asid_shift		= 2;
+
+	/*
+	 * way offset = cache size / associativity, so just don't factor in
+	 * associativity in the first place..
+	 */
+	boot_cpu_data.icache.way_ofs	= boot_cpu_data.icache.sets *
+					  boot_cpu_data.icache.linesz;
+
+	boot_cpu_data.icache.asid_mask		= 0x3fc;
+	boot_cpu_data.icache.idx_mask		= 0x1fe0;
+	boot_cpu_data.icache.epn_mask		= 0xffffe000;
+#endif
+
+	boot_cpu_data.icache.flags		= 0;
+
+	/* A trivial starting point.. */
+	memcpy(&boot_cpu_data.dcache,
+	       &boot_cpu_data.icache, sizeof(struct cache_info));
+
+	return 0;
+}
-- 
cgit v1.2.3-59-g8ed1b


From c2672f62e734292bca4ce4ab5e89c7e04ecb70dc Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 18:29:00 +0900
Subject: sh: Add the SH-5 cpu type symbolic names.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/setup.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 4156aac8c27d..1ec40091a4e8 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -307,7 +307,9 @@ static const char *cpu_name[] = {
 	[CPU_SH7770]	= "SH7770",	[CPU_SH7780]	= "SH7780",
 	[CPU_SH7781]	= "SH7781",	[CPU_SH7343]	= "SH7343",
 	[CPU_SH7785]	= "SH7785",	[CPU_SH7722]	= "SH7722",
-	[CPU_SHX3]	= "SH-X3",	[CPU_SH_NONE]	= "Unknown"
+	[CPU_SHX3]	= "SH-X3",
+	[CPU_SH5_101]	= "SH5-101",	[CPU_SH5_103]	= "SH5-103",
+	[CPU_SH_NONE]	= "Unknown"
 };
 
 const char *get_cpu_subtype(struct sh_cpuinfo *c)
-- 
cgit v1.2.3-59-g8ed1b


From e88ed82ef8c385f84333cb8f30aec6dcb1f9e76f Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 18:33:03 +0900
Subject: sh: Stub in CPU subtype setup code for SH5-101/103.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/sh5/Makefile        |  7 +++++++
 arch/sh/kernel/cpu/sh5/setup-sh5-101.c | 15 +++++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 arch/sh/kernel/cpu/sh5/setup-sh5-101.c

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/sh5/Makefile b/arch/sh/kernel/cpu/sh5/Makefile
index c7a9873c8d57..0ef257b72e5d 100644
--- a/arch/sh/kernel/cpu/sh5/Makefile
+++ b/arch/sh/kernel/cpu/sh5/Makefile
@@ -1,4 +1,11 @@
+#
+# Makefile for the Linux/SuperH SH-5 backends.
+#
 obj-y := entry.o probe.o switchto.o
 
 obj-$(CONFIG_SH_FPU)		+= fpu.o
 obj-$(CONFIG_KALLSYMS)		+= unwind.o
+
+# CPU subtype setup
+obj-$(CONFIG_CPU_SUBTYPE_SH5_101)	+= setup-sh5-101.o
+obj-$(CONFIG_CPU_SUBTYPE_SH5_103)	+= setup-sh5-101.o
diff --git a/arch/sh/kernel/cpu/sh5/setup-sh5-101.c b/arch/sh/kernel/cpu/sh5/setup-sh5-101.c
new file mode 100644
index 000000000000..3680012d7109
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh5/setup-sh5-101.c
@@ -0,0 +1,15 @@
+/*
+ * SH5-101 Setup
+ *
+ *  Copyright (C) 2007  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+
+void __init plat_irq_setup(void)
+{
+	/* do nothing - all IRL interrupts are handled by the board code */
+}
-- 
cgit v1.2.3-59-g8ed1b


From 9ad3d336a2f495ce782a744bc6e49bf7f9ed018b Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 20 Nov 2007 18:45:39 +0900
Subject: sh: Update cayman defconfig.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/configs/cayman_defconfig | 319 +++++++++------------------------------
 1 file changed, 71 insertions(+), 248 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/configs/cayman_defconfig b/arch/sh/configs/cayman_defconfig
index 75552bb01405..1815c682efdc 100644
--- a/arch/sh/configs/cayman_defconfig
+++ b/arch/sh/configs/cayman_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24-rc1
-# Fri Nov  2 14:35:27 2007
+# Linux kernel version: 2.6.24-rc2
+# Tue Nov 20 14:50:00 2007
 #
 CONFIG_SUPERH=y
 CONFIG_SUPERH64=y
@@ -103,15 +103,17 @@ CONFIG_SH_CAYMAN=y
 CONFIG_CPU_SH5=y
 CONFIG_CPU_SUBTYPE_SH5_101=y
 # CONFIG_CPU_SUBTYPE_SH5_103 is not set
-CONFIG_LITTLE_ENDIAN=y
-# CONFIG_BIG_ENDIAN is not set
-CONFIG_SH_FPU=y
-# CONFIG_SH64_FPU_DENORM_FLUSH is not set
+
+#
+# Processor features
+#
+CONFIG_CPU_LITTLE_ENDIAN=y
+# CONFIG_CPU_BIG_ENDIAN is not set
+# CONFIG_SH_FPU is not set
+# CONFIG_SH_FPU_EMU is not set
+CONFIG_CPU_HAS_FPU=y
 CONFIG_SH64_PGTABLE_2_LEVEL=y
 # CONFIG_SH64_PGTABLE_3_LEVEL is not set
-CONFIG_HUGETLB_PAGE_SIZE_64K=y
-# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
-# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
 CONFIG_SH64_USER_MISALIGNED_FIXUP=y
 
 #
@@ -124,9 +126,9 @@ CONFIG_MEMORY_SIZE_IN_MB=128
 #
 # Cache options
 #
-CONFIG_DCACHE_WRITE_BACK=y
+# CONFIG_DCACHE_WRITE_BACK is not set
 # CONFIG_DCACHE_WRITE_THROUGH is not set
-# CONFIG_DCACHE_DISABLED is not set
+CONFIG_DCACHE_DISABLED=y
 # CONFIG_ICACHE_DISABLED is not set
 CONFIG_PCIDEVICE_MEMORY_START=C0000000
 CONFIG_DEVICE_MEMORY_START=E0000000
@@ -145,28 +147,61 @@ CONFIG_HEARTBEAT=y
 CONFIG_HDSP253_LED=y
 # CONFIG_SH_DMA is not set
 CONFIG_PREEMPT=y
+CONFIG_SH_PCLK_FREQ=50000000
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=250
+
+#
+# Memory management options
+#
+CONFIG_PAGE_OFFSET=0x80000000
+CONFIG_MEMORY_SIZE=0x00400000
+CONFIG_32BIT=y
+CONFIG_ARCH_FLATMEM_ENABLE=y
+CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_SPARSEMEM_DEFAULT=y
+CONFIG_MAX_ACTIVE_REGIONS=1
+CONFIG_ARCH_POPULATES_NODE_MAP=y
+CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_PAGE_SIZE_4KB=y
+# CONFIG_PAGE_SIZE_8KB is not set
+# CONFIG_PAGE_SIZE_64KB is not set
+CONFIG_HUGETLB_PAGE_SIZE_64K=y
+# CONFIG_HUGETLB_PAGE_SIZE_256K is not set
+# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
+# CONFIG_HUGETLB_PAGE_SIZE_4MB is not set
+# CONFIG_HUGETLB_PAGE_SIZE_64MB is not set
+# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
 CONFIG_SELECT_MEMORY_MODEL=y
 CONFIG_FLATMEM_MANUAL=y
 # CONFIG_DISCONTIGMEM_MANUAL is not set
 # CONFIG_SPARSEMEM_MANUAL is not set
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
+CONFIG_SPARSEMEM_STATIC=y
 # CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
+CONFIG_RESOURCES_64BIT=y
 CONFIG_ZONE_DMA_FLAG=0
 CONFIG_NR_QUICK=1
 
+#
+# Cache configuration
+#
+# CONFIG_SH_DIRECT_MAPPED is not set
+# CONFIG_CACHE_WRITEBACK is not set
+# CONFIG_CACHE_WRITETHROUGH is not set
+CONFIG_CACHE_OFF=y
+
 #
 # Bus options (PCI, PCMCIA, EISA, MCA, ISA)
 #
-CONFIG_PCI=y
-CONFIG_SH_PCIDMA_NONCOHERENT=y
+# CONFIG_PCI is not set
 # CONFIG_ARCH_SUPPORTS_MSI is not set
-# CONFIG_PCI_DEBUG is not set
 # CONFIG_PCCARD is not set
-# CONFIG_HOTPLUG_PCI is not set
 
 #
 # Executable file formats
@@ -275,14 +310,10 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_MTD is not set
 # CONFIG_PARPORT is not set
 CONFIG_BLK_DEV=y
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
 # CONFIG_BLK_DEV_COW_COMMON is not set
 CONFIG_BLK_DEV_LOOP=y
 # CONFIG_BLK_DEV_CRYPTOLOOP is not set
 # CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_SX8 is not set
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=4096
@@ -290,10 +321,7 @@ CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
 CONFIG_MISC_DEVICES=y
-# CONFIG_PHANTOM is not set
 # CONFIG_EEPROM_93CX6 is not set
-# CONFIG_SGI_IOC4 is not set
-# CONFIG_TIFM_CORE is not set
 # CONFIG_IDE is not set
 
 #
@@ -335,49 +363,9 @@ CONFIG_SCSI_SPI_ATTRS=y
 # CONFIG_SCSI_SRP_ATTRS is not set
 CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_ISCSI_TCP is not set
-# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
-# CONFIG_SCSI_3W_9XXX is not set
-# CONFIG_SCSI_ACARD is not set
-# CONFIG_SCSI_AACRAID is not set
-# CONFIG_SCSI_AIC7XXX is not set
-# CONFIG_SCSI_AIC7XXX_OLD is not set
-# CONFIG_SCSI_AIC79XX is not set
-# CONFIG_SCSI_AIC94XX is not set
-# CONFIG_SCSI_ARCMSR is not set
-# CONFIG_MEGARAID_NEWGEN is not set
-# CONFIG_MEGARAID_LEGACY is not set
-# CONFIG_MEGARAID_SAS is not set
-# CONFIG_SCSI_HPTIOP is not set
-# CONFIG_SCSI_DMX3191D is not set
-# CONFIG_SCSI_FUTURE_DOMAIN is not set
-# CONFIG_SCSI_IPS is not set
-# CONFIG_SCSI_INITIO is not set
-# CONFIG_SCSI_INIA100 is not set
-# CONFIG_SCSI_STEX is not set
-CONFIG_SCSI_SYM53C8XX_2=y
-CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
-CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
-CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
-CONFIG_SCSI_SYM53C8XX_MMIO=y
-# CONFIG_SCSI_QLOGIC_1280 is not set
-# CONFIG_SCSI_QLA_FC is not set
-# CONFIG_SCSI_QLA_ISCSI is not set
-# CONFIG_SCSI_LPFC is not set
-# CONFIG_SCSI_DC395x is not set
-# CONFIG_SCSI_DC390T is not set
-# CONFIG_SCSI_NSP32 is not set
 # CONFIG_SCSI_DEBUG is not set
-# CONFIG_SCSI_SRP is not set
 # CONFIG_ATA is not set
 # CONFIG_MD is not set
-# CONFIG_FUSION is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_FIREWIRE is not set
-# CONFIG_IEEE1394 is not set
-# CONFIG_I2O is not set
 CONFIG_NETDEVICES=y
 # CONFIG_NETDEVICES_MULTIQUEUE is not set
 # CONFIG_DUMMY is not set
@@ -386,82 +374,19 @@ CONFIG_NETDEVICES=y
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
 # CONFIG_VETH is not set
-# CONFIG_IP1000 is not set
-# CONFIG_ARCNET is not set
 # CONFIG_PHYLIB is not set
 CONFIG_NET_ETHERNET=y
 # CONFIG_MII is not set
 # CONFIG_STNIC is not set
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_CASSINI is not set
-# CONFIG_NET_VENDOR_3COM is not set
 # CONFIG_SMC91X is not set
 # CONFIG_SMC911X is not set
-CONFIG_NET_TULIP=y
-# CONFIG_DE2104X is not set
-CONFIG_TULIP=y
-# CONFIG_TULIP_MWI is not set
-# CONFIG_TULIP_MMIO is not set
-# CONFIG_TULIP_NAPI is not set
-# CONFIG_DE4X5 is not set
-# CONFIG_WINBOND_840 is not set
-# CONFIG_DM9102 is not set
-# CONFIG_ULI526X is not set
-# CONFIG_HP100 is not set
 # CONFIG_IBM_NEW_EMAC_ZMII is not set
 # CONFIG_IBM_NEW_EMAC_RGMII is not set
 # CONFIG_IBM_NEW_EMAC_TAH is not set
 # CONFIG_IBM_NEW_EMAC_EMAC4 is not set
-CONFIG_NET_PCI=y
-# CONFIG_PCNET32 is not set
-# CONFIG_AMD8111_ETH is not set
-# CONFIG_ADAPTEC_STARFIRE is not set
 # CONFIG_B44 is not set
-# CONFIG_FORCEDETH is not set
-# CONFIG_EEPRO100 is not set
-# CONFIG_E100 is not set
-# CONFIG_FEALNX is not set
-# CONFIG_NATSEMI is not set
-# CONFIG_NE2K_PCI is not set
-# CONFIG_8139CP is not set
-# CONFIG_8139TOO is not set
-# CONFIG_SIS900 is not set
-# CONFIG_EPIC100 is not set
-# CONFIG_SUNDANCE is not set
-# CONFIG_TLAN is not set
-# CONFIG_VIA_RHINE is not set
-# CONFIG_SC92031 is not set
 CONFIG_NETDEV_1000=y
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_E1000E is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SIS190 is not set
-# CONFIG_SKGE is not set
-# CONFIG_SKY2 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_VIA_VELOCITY is not set
-# CONFIG_TIGON3 is not set
-# CONFIG_BNX2 is not set
-# CONFIG_QLA3XXX is not set
-# CONFIG_ATL1 is not set
 CONFIG_NETDEV_10000=y
-# CONFIG_CHELSIO_T1 is not set
-# CONFIG_CHELSIO_T3 is not set
-# CONFIG_IXGBE is not set
-# CONFIG_IXGB is not set
-# CONFIG_S2IO is not set
-# CONFIG_MYRI10GE is not set
-# CONFIG_NETXEN_NIC is not set
-# CONFIG_NIU is not set
-# CONFIG_MLX4_CORE is not set
-# CONFIG_TEHUTI is not set
-# CONFIG_TR is not set
 
 #
 # Wireless LAN
@@ -469,11 +394,8 @@ CONFIG_NETDEV_10000=y
 # CONFIG_WLAN_PRE80211 is not set
 # CONFIG_WLAN_80211 is not set
 # CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
 # CONFIG_PPP is not set
 # CONFIG_SLIP is not set
-# CONFIG_NET_FC is not set
 # CONFIG_SHAPER is not set
 # CONFIG_NETCONSOLE is not set
 # CONFIG_NETPOLL is not set
@@ -492,7 +414,7 @@ CONFIG_INPUT=y
 # Userland interfaces
 #
 CONFIG_INPUT_MOUSEDEV=y
-CONFIG_INPUT_MOUSEDEV_PSAUX=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
 CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
 # CONFIG_INPUT_JOYDEV is not set
@@ -502,24 +424,8 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
 #
 # Input Device Drivers
 #
-CONFIG_INPUT_KEYBOARD=y
-CONFIG_KEYBOARD_ATKBD=y
-# CONFIG_KEYBOARD_SUNKBD is not set
-# CONFIG_KEYBOARD_LKKBD is not set
-# CONFIG_KEYBOARD_XTKBD is not set
-# CONFIG_KEYBOARD_NEWTON is not set
-# CONFIG_KEYBOARD_STOWAWAY is not set
-CONFIG_INPUT_MOUSE=y
-CONFIG_MOUSE_PS2=y
-CONFIG_MOUSE_PS2_ALPS=y
-CONFIG_MOUSE_PS2_LOGIPS2PP=y
-CONFIG_MOUSE_PS2_SYNAPTICS=y
-CONFIG_MOUSE_PS2_LIFEBOOK=y
-CONFIG_MOUSE_PS2_TRACKPOINT=y
-# CONFIG_MOUSE_PS2_TOUCHKIT is not set
-# CONFIG_MOUSE_SERIAL is not set
-# CONFIG_MOUSE_APPLETOUCH is not set
-# CONFIG_MOUSE_VSXXXAA is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
 # CONFIG_INPUT_JOYSTICK is not set
 # CONFIG_INPUT_TABLET is not set
 # CONFIG_INPUT_TOUCHSCREEN is not set
@@ -528,12 +434,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y
 #
 # Hardware I/O ports
 #
-CONFIG_SERIO=y
-CONFIG_SERIO_I8042=y
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_PCIPS2 is not set
-CONFIG_SERIO_LIBPS2=y
-# CONFIG_SERIO_RAW is not set
+# CONFIG_SERIO is not set
 # CONFIG_GAMEPORT is not set
 
 #
@@ -553,22 +454,15 @@ CONFIG_HW_CONSOLE=y
 #
 # Non-8250 serial port support
 #
-CONFIG_SERIAL_SH_SCI=y
-CONFIG_SERIAL_SH_SCI_NR_UARTS=2
-CONFIG_SERIAL_SH_SCI_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-# CONFIG_SERIAL_JSM is not set
+# CONFIG_SERIAL_SH_SCI is not set
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
 CONFIG_HW_RANDOM=y
 # CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
 # CONFIG_RAW_DRIVER is not set
 # CONFIG_TCG_TPM is not set
-CONFIG_DEVPORT=y
 CONFIG_I2C=m
 CONFIG_I2C_BOARDINFO=y
 # CONFIG_I2C_CHARDEV is not set
@@ -583,28 +477,11 @@ CONFIG_I2C_BOARDINFO=y
 #
 # I2C Hardware Bus support
 #
-# CONFIG_I2C_ALI1535 is not set
-# CONFIG_I2C_ALI1563 is not set
-# CONFIG_I2C_ALI15X3 is not set
-# CONFIG_I2C_AMD756 is not set
-# CONFIG_I2C_AMD8111 is not set
-# CONFIG_I2C_I801 is not set
-# CONFIG_I2C_I810 is not set
-# CONFIG_I2C_PIIX4 is not set
-# CONFIG_I2C_NFORCE2 is not set
 # CONFIG_I2C_OCORES is not set
 # CONFIG_I2C_PARPORT_LIGHT is not set
-# CONFIG_I2C_PROSAVAGE is not set
-# CONFIG_I2C_SAVAGE4 is not set
 # CONFIG_I2C_SIMTEC is not set
-# CONFIG_I2C_SIS5595 is not set
-# CONFIG_I2C_SIS630 is not set
-# CONFIG_I2C_SIS96X is not set
 # CONFIG_I2C_TAOS_EVM is not set
 # CONFIG_I2C_STUB is not set
-# CONFIG_I2C_VIA is not set
-# CONFIG_I2C_VIAPRO is not set
-# CONFIG_I2C_VOODOO3 is not set
 
 #
 # Miscellaneous I2C Chip support
@@ -663,15 +540,12 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_MAX6650 is not set
 # CONFIG_SENSORS_PC87360 is not set
 # CONFIG_SENSORS_PC87427 is not set
-# CONFIG_SENSORS_SIS5595 is not set
 # CONFIG_SENSORS_DME1737 is not set
 # CONFIG_SENSORS_SMSC47M1 is not set
 # CONFIG_SENSORS_SMSC47M192 is not set
 # CONFIG_SENSORS_SMSC47B397 is not set
 # CONFIG_SENSORS_THMC50 is not set
-# CONFIG_SENSORS_VIA686A is not set
 # CONFIG_SENSORS_VT1211 is not set
-# CONFIG_SENSORS_VT8231 is not set
 # CONFIG_SENSORS_W83781D is not set
 # CONFIG_SENSORS_W83791D is not set
 # CONFIG_SENSORS_W83792D is not set
@@ -688,12 +562,6 @@ CONFIG_WATCHDOG=y
 #
 # CONFIG_SOFT_WATCHDOG is not set
 
-#
-# PCI-based Watchdog Cards
-#
-# CONFIG_PCIPCWATCHDOG is not set
-# CONFIG_WDTPCI is not set
-
 #
 # Sonics Silicon Backplane
 #
@@ -718,35 +586,12 @@ CONFIG_VIDEO_HELPER_CHIPS_AUTO=y
 # CONFIG_VIDEO_VIVI is not set
 # CONFIG_VIDEO_SAA5246A is not set
 # CONFIG_VIDEO_SAA5249 is not set
-# CONFIG_VIDEO_SAA7134 is not set
-# CONFIG_VIDEO_HEXIUM_ORION is not set
-# CONFIG_VIDEO_HEXIUM_GEMINI is not set
-# CONFIG_VIDEO_CX88 is not set
-# CONFIG_VIDEO_CX23885 is not set
-# CONFIG_VIDEO_CAFE_CCIC is not set
 # CONFIG_RADIO_ADAPTERS is not set
 CONFIG_DVB_CORE=y
 # CONFIG_DVB_CORE_ATTACH is not set
 CONFIG_DVB_CAPTURE_DRIVERS=y
-
-#
-# Supported SAA7146 based PCI Adapters
-#
-
-#
-# Supported FlexCopII (B2C2) Adapters
-#
 # CONFIG_DVB_B2C2_FLEXCOP is not set
 
-#
-# Supported BT878 Adapters
-#
-
-#
-# Supported Pluto2 Adapters
-#
-# CONFIG_DVB_PLUTO2 is not set
-
 #
 # Supported DVB Frontends
 #
@@ -826,15 +671,14 @@ CONFIG_DAB=y
 #
 # Graphics support
 #
-# CONFIG_DRM is not set
 # CONFIG_VGASTATE is not set
 CONFIG_VIDEO_OUTPUT_CONTROL=y
 CONFIG_FB=y
 CONFIG_FIRMWARE_EDID=y
 # CONFIG_FB_DDC is not set
-CONFIG_FB_CFB_FILLRECT=y
-CONFIG_FB_CFB_COPYAREA=y
-CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_CFB_FILLRECT is not set
+# CONFIG_FB_CFB_COPYAREA is not set
+# CONFIG_FB_CFB_IMAGEBLIT is not set
 # CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
 # CONFIG_FB_SYS_FILLRECT is not set
 # CONFIG_FB_SYS_COPYAREA is not set
@@ -850,29 +694,7 @@ CONFIG_FB_MODE_HELPERS=y
 #
 # Frame buffer hardware drivers
 #
-# CONFIG_FB_CIRRUS is not set
-# CONFIG_FB_PM2 is not set
-# CONFIG_FB_CYBER2000 is not set
-# CONFIG_FB_ASILIANT is not set
-# CONFIG_FB_IMSTT is not set
 # CONFIG_FB_S1D13XXX is not set
-# CONFIG_FB_NVIDIA is not set
-# CONFIG_FB_RIVA is not set
-# CONFIG_FB_MATROX is not set
-# CONFIG_FB_RADEON is not set
-# CONFIG_FB_ATY128 is not set
-# CONFIG_FB_ATY is not set
-# CONFIG_FB_S3 is not set
-# CONFIG_FB_SAVAGE is not set
-# CONFIG_FB_SIS is not set
-# CONFIG_FB_NEOMAGIC is not set
-CONFIG_FB_KYRO=y
-# CONFIG_FB_3DFX is not set
-# CONFIG_FB_VOODOO1 is not set
-# CONFIG_FB_VT8623 is not set
-# CONFIG_FB_TRIDENT is not set
-# CONFIG_FB_ARK is not set
-# CONFIG_FB_PM3 is not set
 # CONFIG_FB_VIRTUAL is not set
 # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
@@ -917,8 +739,8 @@ CONFIG_HID=y
 # CONFIG_HIDRAW is not set
 CONFIG_USB_SUPPORT=y
 CONFIG_USB_ARCH_HAS_HCD=y
-CONFIG_USB_ARCH_HAS_OHCI=y
-CONFIG_USB_ARCH_HAS_EHCI=y
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+# CONFIG_USB_ARCH_HAS_EHCI is not set
 # CONFIG_USB is not set
 
 #
@@ -931,7 +753,6 @@ CONFIG_USB_ARCH_HAS_EHCI=y
 # CONFIG_USB_GADGET is not set
 # CONFIG_MMC is not set
 # CONFIG_NEW_LEDS is not set
-# CONFIG_INFINIBAND is not set
 # CONFIG_RTC_CLASS is not set
 
 #
@@ -1062,6 +883,7 @@ CONFIG_INSTRUMENTATION=y
 #
 # Kernel hacking
 #
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
 # CONFIG_PRINTK_TIME is not set
 CONFIG_ENABLE_WARN_DEPRECATED=y
 CONFIG_ENABLE_MUST_CHECK=y
@@ -1076,6 +898,7 @@ CONFIG_SCHED_DEBUG=y
 CONFIG_SCHEDSTATS=y
 # CONFIG_TIMER_STATS is not set
 # CONFIG_DEBUG_SLAB is not set
+CONFIG_DEBUG_PREEMPT=y
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set
@@ -1094,13 +917,13 @@ CONFIG_FORCED_INLINING=y
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_FAULT_INJECTION is not set
 # CONFIG_SAMPLES is not set
-# CONFIG_EARLY_PRINTK is not set
-CONFIG_SH64_PROC_TLB=y
-CONFIG_SH64_PROC_ASIDS=y
-CONFIG_SH64_SR_WATCH=y
-# CONFIG_POOR_MANS_STRACE is not set
-# CONFIG_SH_ALPHANUMERIC is not set
-# CONFIG_SH_NO_BSS_INIT is not set
+# CONFIG_SH_STANDARD_BIOS is not set
+# CONFIG_EARLY_SCIF_CONSOLE is not set
+# CONFIG_DEBUG_BOOTMEM is not set
+# CONFIG_DEBUG_STACKOVERFLOW is not set
+# CONFIG_DEBUG_STACK_USAGE is not set
+# CONFIG_4KSTACKS is not set
+# CONFIG_IRQSTACKS is not set
 
 #
 # Security options
-- 
cgit v1.2.3-59-g8ed1b


From 36763b22bee56713057762bb0756e8075b5bb918 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 15:34:33 +0900
Subject: sh: Switch SH-5 to use CONFIG_PAGE_OFFSET.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Makefile                |  2 +-
 arch/sh/kernel/cpu/sh5/entry.S  | 22 +++++++++++-----------
 arch/sh/kernel/head_64.S        |  8 ++++----
 arch/sh/kernel/vmlinux_64.lds.S |  4 ++--
 arch/sh/mm/Kconfig              |  3 ++-
 5 files changed, 20 insertions(+), 19 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 15161f1851a5..e08d4d27d8d6 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -85,7 +85,7 @@ KBUILD_IMAGE		:= arch/sh/boot/zImage
 ifdef CONFIG_SUPERH32
 LDFLAGS_vmlinux	+= -e _stext
 else
-LDFLAGS_vmlinux	+= --defsym phys_stext=_stext-$(CONFIG_CACHED_MEMORY_OFFSET) \
+LDFLAGS_vmlinux	+= --defsym phys_stext=_stext-$(CONFIG_PAGE_OFFSET) \
 		   --defsym phys_stext_shmedia=phys_stext+1 \
 		   -e phys_stext_shmedia
 endif
diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S
index 81010b9308b2..0f65bb4372da 100644
--- a/arch/sh/kernel/cpu/sh5/entry.S
+++ b/arch/sh/kernel/cpu/sh5/entry.S
@@ -432,7 +432,7 @@ reset_or_panic:
 	synco	/* TAKum03020 (but probably a good idea anyway.) */
 	putcon	SP, DCR
 	/* First save r0-1 and tr0, as we need to use these */
-	movi	resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
+	movi	resvec_save_area-CONFIG_PAGE_OFFSET, SP
 	st.q	SP, 0, r0
 	st.q	SP, 8, r1
 	gettr	tr0, r0
@@ -442,7 +442,7 @@ reset_or_panic:
 	getcon	EXPEVT, r0
 	movi	RESET_CAUSE, r1
 	sub	r1, r0, r1		/* r1=0 if reset */
-	movi	_stext-CONFIG_CACHED_MEMORY_OFFSET, r0
+	movi	_stext-CONFIG_PAGE_OFFSET, r0
 	ori	r0, 1, r0
 	ptabs	r0, tr0
 	beqi	r1, 0, tr0		/* Jump to start address if reset */
@@ -454,7 +454,7 @@ reset_or_panic:
 	beqi	r1, 0, tr0		/* jump if single step */
 
 	/* Now jump to where we save the registers. */
-	movi	panic_stash_regs-CONFIG_CACHED_MEMORY_OFFSET, r1
+	movi	panic_stash_regs-CONFIG_PAGE_OFFSET, r1
 	ptabs	r1, tr0
 	blink	tr0, r63
 
@@ -490,7 +490,7 @@ debug_exception:
 	 */
 	putcon	SP, DCR
 	/* Save SSR & SPC, together with R0 & R1, as we need to use 2 regs. */
-	movi	resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
+	movi	resvec_save_area-CONFIG_PAGE_OFFSET, SP
 
 	/* With the MMU off, we are bypassing the cache, so purge any
          * data that will be made stale by the following stores.
@@ -558,7 +558,7 @@ debug_interrupt:
 	/* Save original stack pointer into KCR1 */
 	synco
 	putcon	SP, KCR1
-	movi	resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
+	movi	resvec_save_area-CONFIG_PAGE_OFFSET, SP
 	ocbp	SP, 0
 	ocbp	SP, 32
 	synco
@@ -607,7 +607,7 @@ debug_interrupt:
 	movi	EVENT_FAULT_NOT_TLB, r4
 
 	or	SP, ZERO, r5
-	movi	CONFIG_CACHED_MEMORY_OFFSET, r6
+	movi	CONFIG_PAGE_OFFSET, r6
 	add	r6, r5, r5
 	getcon	KCR1, SP
 
@@ -1366,7 +1366,7 @@ route_to_panic_handler:
 	   last-chance debugging, e.g. if no output wants to go to the console.
 	   */
 
-	movi	panic_handler - CONFIG_CACHED_MEMORY_OFFSET, r1
+	movi	panic_handler - CONFIG_PAGE_OFFSET, r1
 	ptabs	r1, tr0
 	pta	1f, tr1
 	gettr	tr1, r0
@@ -1408,7 +1408,7 @@ peek_real_address_q:
 	andc	r1, r36, r1	/* turn sr.mmu off in real mode section */
 
 	putcon	r1, ssr
-	movi	.peek0 - CONFIG_CACHED_MEMORY_OFFSET, r36 /* real mode target address */
+	movi	.peek0 - CONFIG_PAGE_OFFSET, r36 /* real mode target address */
 	movi	1f, r37		/* virtual mode return addr */
 	putcon	r36, spc
 
@@ -1457,7 +1457,7 @@ poke_real_address_q:
 	andc	r1, r36, r1	/* turn sr.mmu off in real mode section */
 
 	putcon	r1, ssr
-	movi	.poke0-CONFIG_CACHED_MEMORY_OFFSET, r36 /* real mode target address */
+	movi	.poke0-CONFIG_PAGE_OFFSET, r36 /* real mode target address */
 	movi	1f, r37		/* virtual mode return addr */
 	putcon	r36, spc
 
@@ -1954,7 +1954,7 @@ panic_stash_regs:
 	getcon	SSR,r3
 	getcon	EXPEVT,r4
 	/* Prepare to jump to C - physical address */
-	movi	panic_handler-CONFIG_CACHED_MEMORY_OFFSET, r1
+	movi	panic_handler-CONFIG_PAGE_OFFSET, r1
 	ori	r1, 1, r1
 	ptabs   r1, tr0
 	getcon	DCR, SP
@@ -2055,7 +2055,7 @@ trap_init:
 	andi	r19, -4, r19			/* reset MMUOFF + reserved */
 	/* For RESVEC exceptions we force the MMU off, which means we need the
 	   physical address. */
-	movi	LRESVEC_block-CONFIG_CACHED_MEMORY_OFFSET, r20
+	movi	LRESVEC_block-CONFIG_PAGE_OFFSET, r20
 	andi	r20, -4, r20			/* reset reserved */
 	ori	r20, 1, r20			/* set MMUOFF */
 	putcon	r19, VBR
diff --git a/arch/sh/kernel/head_64.S b/arch/sh/kernel/head_64.S
index 55ae281893f8..c969db592bef 100644
--- a/arch/sh/kernel/head_64.S
+++ b/arch/sh/kernel/head_64.S
@@ -38,9 +38,9 @@
 #define MMUDR_END	DTLB_LAST_VAR_UNRESTRICTED+TLB_STEP
 #define MMUDR_STEP	TLB_STEP
 
-/* Safety check : CONFIG_CACHED_MEMORY_OFFSET has to be a multiple of 512Mb */
-#if (CONFIG_CACHED_MEMORY_OFFSET & ((1UL<<29)-1))
-#error "CONFIG_CACHED_MEMORY_OFFSET must be a multiple of 512Mb"
+/* Safety check : CONFIG_PAGE_OFFSET has to be a multiple of 512Mb */
+#if (CONFIG_PAGE_OFFSET & ((1UL<<29)-1))
+#error "CONFIG_PAGE_OFFSET must be a multiple of 512Mb"
 #endif
 
 /*
@@ -49,7 +49,7 @@
 /* Deal safely with the case where the base of RAM is not 512Mb aligned */
 
 #define ALIGN_512M_MASK (0xffffffffe0000000)
-#define ALIGNED_EFFECTIVE ((CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START) & ALIGN_512M_MASK)
+#define ALIGNED_EFFECTIVE ((CONFIG_PAGE_OFFSET + CONFIG_MEMORY_START) & ALIGN_512M_MASK)
 #define ALIGNED_PHYSICAL (CONFIG_MEMORY_START & ALIGN_512M_MASK)
 
 #define MMUIR_TEXT_H	(0x0000000000000003 | ALIGNED_EFFECTIVE)
diff --git a/arch/sh/kernel/vmlinux_64.lds.S b/arch/sh/kernel/vmlinux_64.lds.S
index f0f5771657dd..2fd0f7401484 100644
--- a/arch/sh/kernel/vmlinux_64.lds.S
+++ b/arch/sh/kernel/vmlinux_64.lds.S
@@ -24,7 +24,7 @@
 #include <asm/cache.h>
 #include <asm/thread_info.h>
 
-#define LOAD_OFFSET	CONFIG_CACHED_MEMORY_OFFSET
+#define LOAD_OFFSET	CONFIG_PAGE_OFFSET
 #include <asm-generic/vmlinux.lds.h>
 
 OUTPUT_ARCH(sh:sh5)
@@ -34,7 +34,7 @@ OUTPUT_ARCH(sh:sh5)
 ENTRY(__start)
 SECTIONS
 {
-	. = CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START + PAGE_SIZE;
+	. = CONFIG_PAGE_OFFSET + CONFIG_MEMORY_START + PAGE_SIZE;
 	_text = .;			/* Text and read-only data */
 
 	.empty_zero_page : C_PHYS(.empty_zero_page) {
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 7ff26c1f4e9c..2af950784e66 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -17,7 +17,8 @@ config MMU
 
 config PAGE_OFFSET
 	hex
-	default "0x80000000" if MMU
+	default "0x80000000" if MMU && SUPERH32
+	default "0x20000000" if MMU && SUPERH64
 	default "0x00000000"
 
 config MEMORY_START
-- 
cgit v1.2.3-59-g8ed1b


From f137c319db9d4227f1857f9ff886278ad61c8207 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 15:43:43 +0900
Subject: sh: Kill off some dead sh64 kconfig symbols.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig.sh64 | 32 --------------------------------
 1 file changed, 32 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/Kconfig.sh64 b/arch/sh/Kconfig.sh64
index e37cd8c51e34..9f71f9531c08 100644
--- a/arch/sh/Kconfig.sh64
+++ b/arch/sh/Kconfig.sh64
@@ -106,27 +106,11 @@ config SH64_FPU_DENORM_FLUSH
 	depends on SH_FPU
 	bool "Flush floating point denorms to zero"
 
-choice
-	prompt "Page table levels"
-	default SH64_PGTABLE_2_LEVEL
-
-config SH64_PGTABLE_2_LEVEL
-	bool "2"
-
-config SH64_PGTABLE_3_LEVEL
-	bool "3"
-
-endchoice
-
 config SH64_USER_MISALIGNED_FIXUP
 	bool "Fixup misaligned loads/stores occurring in user mode"
 
 comment "Memory options"
 
-config CACHED_MEMORY_OFFSET
-	hex "Cached Area Offset"
-	default "20000000"
-
 config MEMORY_START
 	hex "Physical memory start address"
 	default "80000000"
@@ -159,22 +143,6 @@ endchoice
 config ICACHE_DISABLED
 	bool "ICache Disabling"
 
-config PCIDEVICE_MEMORY_START
-	hex
-	default "C0000000"
-
-config DEVICE_MEMORY_START
-	hex
-	default "E0000000"
-
-config FLASH_MEMORY_START
-	hex "Flash memory/on-chip devices start address"
-	default "00000000"
-
-config PCI_BLOCK_START
-	hex "PCI block start address"
-	default "40000000"
-
 comment "CPU Subtype specific options"
 
 config SH64_ID2815_WORKAROUND
-- 
cgit v1.2.3-59-g8ed1b


From 711fe4369c5d3834cfe1750f8804ef2b74865e9e Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 15:46:07 +0900
Subject: sh: Bump the MEMORY_SIZE default to something reasonable.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 2af950784e66..f549b8cd2501 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -39,12 +39,12 @@ config MEMORY_START
 
 config MEMORY_SIZE
 	hex "Physical memory size"
-	default "0x00400000"
+	default "0x04000000"
 	help
 	  This sets the default memory size assumed by your SH kernel. It can
 	  be overridden as normal by the 'mem=' argument on the kernel command
 	  line. If unsure, consult your board specifications or just leave it
-	  as 0x00400000 which was the default value before this became
+	  as 0x04000000 which was the default value before this became
 	  configurable.
 
 # Physical addressing modes
-- 
cgit v1.2.3-59-g8ed1b


From ea0e1a9a3d73b917226eca751bf369609fa0dc2f Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 15:58:01 +0900
Subject: sh: Consolidate Kconfig.sh/Kconfig.sh64.

Fold in the sh64-specific bits in to the main Kconfig.sh, and move
this back as arch/sh/Kconfig.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig      | 888 +++++++++++++++++++++++++++++++++++++++++++++++++++
 arch/sh/Kconfig.cpu  |  13 +
 arch/sh/Kconfig.sh   | 858 -------------------------------------------------
 arch/sh/Kconfig.sh64 | 239 --------------
 4 files changed, 901 insertions(+), 1097 deletions(-)
 create mode 100644 arch/sh/Kconfig
 delete mode 100644 arch/sh/Kconfig.sh
 delete mode 100644 arch/sh/Kconfig.sh64

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
new file mode 100644
index 000000000000..7cfd17230224
--- /dev/null
+++ b/arch/sh/Kconfig
@@ -0,0 +1,888 @@
+#
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+#
+
+mainmenu "Linux/SuperH Kernel Configuration"
+
+config SUPERH
+	def_bool y
+	select EMBEDDED
+	help
+	  The SuperH is a RISC processor targeted for use in embedded systems
+	  and consumer electronics; it was also used in the Sega Dreamcast
+	  gaming console.  The SuperH port has a home page at
+	  <http://www.linux-sh.org/>.
+
+config SUPERH32
+	def_bool !SUPERH64
+
+config SUPERH64
+	def_bool y if CPU_SH5
+
+config RWSEM_GENERIC_SPINLOCK
+	bool
+	default y
+
+config SUPERH64
+	def_bool y if CPU_SH5
+
+config RWSEM_XCHGADD_ALGORITHM
+	bool
+
+config GENERIC_BUG
+	def_bool y
+	depends on BUG
+
+config GENERIC_FIND_NEXT_BIT
+	bool
+	default y
+
+config GENERIC_HWEIGHT
+	bool
+	default y
+
+config GENERIC_HARDIRQS
+	bool
+	default y
+
+config GENERIC_IRQ_PROBE
+	bool
+	default y
+
+config GENERIC_CALIBRATE_DELAY
+	bool
+	default y
+
+config GENERIC_IOMAP
+	bool
+
+config GENERIC_TIME
+	def_bool n
+
+config GENERIC_CLOCKEVENTS
+	def_bool n
+
+config SYS_SUPPORTS_PM
+	bool
+
+config SYS_SUPPORTS_APM_EMULATION
+	bool
+	select SYS_SUPPORTS_PM
+
+config SYS_SUPPORTS_SMP
+	bool
+
+config SYS_SUPPORTS_NUMA
+	bool
+
+config SYS_SUPPORTS_PCI
+	bool
+
+config ARCH_MAY_HAVE_PC_FDC
+	bool
+
+config STACKTRACE_SUPPORT
+	bool
+	default y
+
+config LOCKDEP_SUPPORT
+	bool
+	default y
+
+config ARCH_HAS_ILOG2_U32
+	bool
+	default n
+
+config ARCH_HAS_ILOG2_U64
+	bool
+	default n
+
+config ARCH_NO_VIRT_TO_BUS
+	def_bool y
+
+source "init/Kconfig"
+
+menu "System type"
+
+#
+# Processor families
+#
+config CPU_SH2
+	bool
+
+config CPU_SH2A
+	bool
+	select CPU_SH2
+
+config CPU_SH3
+	bool
+	select CPU_HAS_INTEVT
+	select CPU_HAS_SR_RB
+
+config CPU_SH4
+	bool
+	select CPU_HAS_INTEVT
+	select CPU_HAS_SR_RB
+	select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
+	select CPU_HAS_FPU if !CPU_SH4AL_DSP
+
+config CPU_SH4A
+	bool
+	select CPU_SH4
+
+config CPU_SH4AL_DSP
+	bool
+	select CPU_SH4A
+	select CPU_HAS_DSP
+
+config CPU_SH5
+	bool
+	select CPU_HAS_FPU
+
+config CPU_SHX2
+	bool
+
+config CPU_SHX3
+	bool
+
+choice
+	prompt "Processor sub-type selection"
+
+#
+# Processor subtypes
+#
+
+# SH-2 Processor Support
+
+config CPU_SUBTYPE_SH7619
+	bool "Support SH7619 processor"
+	select CPU_SH2
+
+# SH-2A Processor Support
+
+config CPU_SUBTYPE_SH7206
+	bool "Support SH7206 processor"
+	select CPU_SH2A
+
+# SH-3 Processor Support
+
+config CPU_SUBTYPE_SH7705
+	bool "Support SH7705 processor"
+	select CPU_SH3
+
+config CPU_SUBTYPE_SH7706
+	bool "Support SH7706 processor"
+	select CPU_SH3
+	help
+	  Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
+
+config CPU_SUBTYPE_SH7707
+	bool "Support SH7707 processor"
+	select CPU_SH3
+	help
+	  Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
+
+config CPU_SUBTYPE_SH7708
+	bool "Support SH7708 processor"
+	select CPU_SH3
+	help
+	  Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
+	  if you have a 100 Mhz SH-3 HD6417708R CPU.
+
+config CPU_SUBTYPE_SH7709
+	bool "Support SH7709 processor"
+	select CPU_SH3
+	help
+	  Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.
+
+config CPU_SUBTYPE_SH7710
+	bool "Support SH7710 processor"
+	select CPU_SH3
+	select CPU_HAS_DSP
+	help
+	  Select SH7710 if you have a SH3-DSP SH7710 CPU.
+
+config CPU_SUBTYPE_SH7712
+	bool "Support SH7712 processor"
+	select CPU_SH3
+	select CPU_HAS_DSP
+	help
+	  Select SH7712 if you have a SH3-DSP SH7712 CPU.
+
+config CPU_SUBTYPE_SH7720
+	bool "Support SH7720 processor"
+	select CPU_SH3
+	select CPU_HAS_DSP
+	help
+	  Select SH7720 if you have a SH3-DSP SH7720 CPU.
+
+# SH-4 Processor Support
+
+config CPU_SUBTYPE_SH7750
+	bool "Support SH7750 processor"
+	select CPU_SH4
+	help
+	  Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
+
+config CPU_SUBTYPE_SH7091
+	bool "Support SH7091 processor"
+	select CPU_SH4
+	help
+	  Select SH7091 if you have an SH-4 based Sega device (such as
+	  the Dreamcast, Naomi, and Naomi 2).
+
+config CPU_SUBTYPE_SH7750R
+	bool "Support SH7750R processor"
+	select CPU_SH4
+
+config CPU_SUBTYPE_SH7750S
+	bool "Support SH7750S processor"
+	select CPU_SH4
+
+config CPU_SUBTYPE_SH7751
+	bool "Support SH7751 processor"
+	select CPU_SH4
+	help
+	  Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
+	  or if you have a HD6417751R CPU.
+
+config CPU_SUBTYPE_SH7751R
+	bool "Support SH7751R processor"
+	select CPU_SH4
+
+config CPU_SUBTYPE_SH7760
+	bool "Support SH7760 processor"
+	select CPU_SH4
+
+config CPU_SUBTYPE_SH4_202
+	bool "Support SH4-202 processor"
+	select CPU_SH4
+
+# SH-4A Processor Support
+
+config CPU_SUBTYPE_SH7770
+	bool "Support SH7770 processor"
+	select CPU_SH4A
+
+config CPU_SUBTYPE_SH7780
+	bool "Support SH7780 processor"
+	select CPU_SH4A
+
+config CPU_SUBTYPE_SH7785
+	bool "Support SH7785 processor"
+	select CPU_SH4A
+	select CPU_SHX2
+	select ARCH_SPARSEMEM_ENABLE
+	select SYS_SUPPORTS_NUMA
+
+config CPU_SUBTYPE_SHX3
+	bool "Support SH-X3 processor"
+	select CPU_SH4A
+	select CPU_SHX3
+	select ARCH_SPARSEMEM_ENABLE
+	select SYS_SUPPORTS_NUMA
+	select SYS_SUPPORTS_SMP
+
+# SH4AL-DSP Processor Support
+
+config CPU_SUBTYPE_SH7343
+	bool "Support SH7343 processor"
+	select CPU_SH4AL_DSP
+
+config CPU_SUBTYPE_SH7722
+	bool "Support SH7722 processor"
+	select CPU_SH4AL_DSP
+	select CPU_SHX2
+	select ARCH_SPARSEMEM_ENABLE
+	select SYS_SUPPORTS_NUMA
+
+# SH-5 Processor Support
+
+config CPU_SUBTYPE_SH5_101
+	bool "Support SH5-101 processor"
+	select CPU_SH5
+
+config CPU_SUBTYPE_SH5_103
+	bool "Support SH5-103 processor"
+
+endchoice
+
+source "arch/sh/mm/Kconfig"
+source "arch/sh/Kconfig.cpu"
+
+menu "Board support"
+
+config SOLUTION_ENGINE
+	bool
+
+config SH_SOLUTION_ENGINE
+	bool "SolutionEngine"
+	select SOLUTION_ENGINE
+	select CPU_HAS_IPR_IRQ
+	depends on CPU_SUBTYPE_SH7705 || CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7710 || \
+	  CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7750S || \
+	  CPU_SUBTYPE_SH7750R 
+	help
+	  Select SolutionEngine if configuring for a Hitachi SH7705, SH7709,
+	  SH7710, SH7712, SH7750, SH7750S or SH7750R evaluation board.
+
+config SH_7206_SOLUTION_ENGINE
+	bool "SolutionEngine7206"
+	select SOLUTION_ENGINE
+	depends on CPU_SUBTYPE_SH7206
+	help
+	  Select 7206 SolutionEngine if configuring for a Hitachi SH7206
+	  evaluation board.
+
+config SH_7619_SOLUTION_ENGINE
+	bool "SolutionEngine7619"
+	select SOLUTION_ENGINE
+	depends on CPU_SUBTYPE_SH7619
+	help
+	  Select 7619 SolutionEngine if configuring for a Hitachi SH7619
+	  evaluation board.
+	
+config SH_7722_SOLUTION_ENGINE
+	bool "SolutionEngine7722"
+	select SOLUTION_ENGINE
+	depends on CPU_SUBTYPE_SH7722
+	help
+	  Select 7722 SolutionEngine if configuring for a Hitachi SH772
+	  evaluation board.
+
+config SH_7751_SOLUTION_ENGINE
+	bool "SolutionEngine7751"
+	select SOLUTION_ENGINE
+	select CPU_HAS_IPR_IRQ
+	depends on CPU_SUBTYPE_SH7751
+	help
+	  Select 7751 SolutionEngine if configuring for a Hitachi SH7751
+	  evaluation board.
+	  
+config SH_7780_SOLUTION_ENGINE
+	bool "SolutionEngine7780"
+	select SOLUTION_ENGINE
+	select SYS_SUPPORTS_PCI
+	depends on CPU_SUBTYPE_SH7780
+	help
+	  Select 7780 SolutionEngine if configuring for a Renesas SH7780
+	  evaluation board.
+
+config SH_7343_SOLUTION_ENGINE
+	bool "SolutionEngine7343"
+	select SOLUTION_ENGINE
+	depends on CPU_SUBTYPE_SH7343
+	help
+	  Select 7343 SolutionEngine if configuring for a Hitachi
+	  SH7343 (SH-Mobile 3AS) evaluation board.
+
+config SH_7751_SYSTEMH
+	bool "SystemH7751R"
+	depends on CPU_SUBTYPE_SH7751R
+	help
+	  Select SystemH if you are configuring for a Renesas SystemH
+	  7751R evaluation board.
+
+config SH_HP6XX
+	bool "HP6XX"
+	select SYS_SUPPORTS_APM_EMULATION
+	select HD6446X_SERIES
+	depends on CPU_SUBTYPE_SH7709
+	help
+	  Select HP6XX if configuring for a HP jornada HP6xx.
+	  More information (hardware only) at
+	  <http://www.hp.com/jornada/>.
+
+config SH_DREAMCAST
+	bool "Dreamcast"
+	select SYS_SUPPORTS_PCI
+	depends on CPU_SUBTYPE_SH7091
+	help
+	  Select Dreamcast if configuring for a SEGA Dreamcast.
+	  More information at <http://www.linux-sh.org>
+
+config SH_MPC1211
+	bool "Interface MPC1211"
+	depends on CPU_SUBTYPE_SH7751 && BROKEN
+	help
+	  CTP/PCI-SH02 is a CPU module computer that is produced
+	  by Interface Corporation.
+	  More information at <http://www.interface.co.jp>
+
+config SH_SH03
+	bool "Interface CTP/PCI-SH03"
+	depends on CPU_SUBTYPE_SH7751
+	select CPU_HAS_IPR_IRQ
+	select SYS_SUPPORTS_PCI
+	help
+	  CTP/PCI-SH03 is a CPU module computer that is produced
+	  by Interface Corporation.
+	  More information at <http://www.interface.co.jp>
+
+config SH_SECUREEDGE5410
+	bool "SecureEdge5410"
+	depends on CPU_SUBTYPE_SH7751R
+	select CPU_HAS_IPR_IRQ
+	select SYS_SUPPORTS_PCI
+	help
+	  Select SecureEdge5410 if configuring for a SnapGear SH board.
+	  This includes both the OEM SecureEdge products as well as the
+	  SME product line.
+
+config SH_HS7751RVOIP
+	bool "HS7751RVOIP"
+	depends on CPU_SUBTYPE_SH7751R
+	help
+	  Select HS7751RVOIP if configuring for a Renesas Technology
+	  Sales VoIP board.
+
+config SH_7710VOIPGW
+	bool "SH7710-VOIP-GW"
+	depends on CPU_SUBTYPE_SH7710
+	help
+	  Select this option to build a kernel for the SH7710 based
+	  VOIP GW.
+
+config SH_RTS7751R2D
+	bool "RTS7751R2D"
+	depends on CPU_SUBTYPE_SH7751R
+	select SYS_SUPPORTS_PCI
+	help
+	  Select RTS7751R2D if configuring for a Renesas Technology
+	  Sales SH-Graphics board.
+
+config SH_HIGHLANDER
+	bool "Highlander"
+	depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
+	select SYS_SUPPORTS_PCI
+
+config SH_EDOSK7705
+	bool "EDOSK7705"
+	depends on CPU_SUBTYPE_SH7705
+
+config SH_SH4202_MICRODEV
+	bool "SH4-202 MicroDev"
+	depends on CPU_SUBTYPE_SH4_202
+	help
+	  Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
+	  with an SH4-202 CPU.
+
+config SH_LANDISK
+	bool "LANDISK"
+	depends on CPU_SUBTYPE_SH7751R
+	select SYS_SUPPORTS_PCI
+	help
+	  I-O DATA DEVICE, INC. "LANDISK Series" support.
+
+config SH_TITAN
+	bool "TITAN"
+	depends on CPU_SUBTYPE_SH7751R
+	select CPU_HAS_IPR_IRQ
+	select SYS_SUPPORTS_PCI
+	help
+	  Select Titan if you are configuring for a Nimble Microsystems
+	  NetEngine NP51R.
+
+config SH_SHMIN
+	bool "SHMIN"
+	depends on CPU_SUBTYPE_SH7706
+	select CPU_HAS_IPR_IRQ
+	help
+	  Select SHMIN if configuring for the SHMIN board.
+
+config SH_LBOX_RE2
+	bool "L-BOX RE2"
+	depends on CPU_SUBTYPE_SH7751R
+	select SYS_SUPPORTS_PCI
+	help
+	  Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
+
+config SH_X3PROTO
+	bool "SH-X3 Prototype board"
+	depends on CPU_SUBTYPE_SHX3
+
+config SH_MAGIC_PANEL_R2
+	bool "Magic Panel R2"
+	depends on CPU_SUBTYPE_SH7720
+	help
+	  Select Magic Panel R2 if configuring for Magic Panel R2.
+
+config SH_SIMULATOR
+	bool "Simulator"
+	depends on SUPERH64
+
+config SH_CAYMAN
+	bool "Hitachi Cayman"
+	depends on CPU_SUBTYPE_SH5_101 || CPU_SUBTYPE_SH5_103
+
+config SH_HARP
+	bool "ST50 Harp"
+	depends on CPU_SH5
+
+endmenu
+
+source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
+source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
+source "arch/sh/boards/renesas/r7780rp/Kconfig"
+source "arch/sh/boards/magicpanelr2/Kconfig"
+
+menu "Timer and clock configuration"
+
+config SH_TMU
+	bool "TMU timer support"
+	depends on CPU_SH3 || CPU_SH4
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
+	default y
+	help
+	  This enables the use of the TMU as the system timer.
+
+config SH_CMT
+	bool "CMT timer support"
+	depends on CPU_SH2
+	default y
+	help
+	  This enables the use of the CMT as the system timer.
+
+config SH_MTU2
+	bool "MTU2 timer support"
+	depends on CPU_SH2A
+	default n
+	help
+	  This enables the use of the MTU2 as the system timer.
+
+config SH_TIMER_IRQ
+	int
+	default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
+	default "86" if CPU_SUBTYPE_SH7619
+	default "140" if CPU_SUBTYPE_SH7206
+	default "16"
+
+config SH_PCLK_FREQ
+	int "Peripheral clock frequency (in Hz)"
+	default "27000000" if CPU_SUBTYPE_SH7343
+	default "31250000" if CPU_SUBTYPE_SH7619
+	default "32000000" if CPU_SUBTYPE_SH7722
+	default "33333333" if CPU_SUBTYPE_SH7770 || \
+			      CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
+			      CPU_SUBTYPE_SH7206
+	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
+	default "66000000" if CPU_SUBTYPE_SH4_202
+	default "50000000"
+	help
+	  This option is used to specify the peripheral clock frequency.
+	  This is necessary for determining the reference clock value on
+	  platforms lacking an RTC.
+
+config SH_CLK_MD
+	int "CPU Mode Pin Setting"
+	depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
+	default 6 if CPU_SUBTYPE_SH7206
+	default 5 if CPU_SUBTYPE_SH7619
+	default 0
+	help
+	  MD2 - MD0 pin setting.
+
+source "kernel/time/Kconfig"
+
+endmenu
+
+menu "CPU Frequency scaling"
+
+source "drivers/cpufreq/Kconfig"
+
+config SH_CPU_FREQ
+	tristate "SuperH CPU Frequency driver"
+	depends on CPU_FREQ
+	select CPU_FREQ_TABLE
+	help
+	  This adds the cpufreq driver for SuperH. At present, only
+	  the SH-4 is supported.
+
+	  For details, take a look at <file:Documentation/cpu-freq>.
+
+	  If unsure, say N.
+
+endmenu
+
+source "arch/sh/drivers/Kconfig"
+
+endmenu
+
+config ISA_DMA_API
+	bool
+	depends on SH_MPC1211
+	default y
+
+menu "Kernel features"
+
+source kernel/Kconfig.hz
+
+config KEXEC
+	bool "kexec system call (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	help
+	  kexec is a system call that implements the ability to shutdown your
+	  current kernel, and to start another kernel.  It is like a reboot
+	  but it is independent of the system firmware.  And like a reboot
+	  you can start any kernel with it, not just Linux.
+
+	  The name comes from the similarity to the exec system call.
+
+	  It is an ongoing process to be certain the hardware in a machine
+	  is properly shutdown, so do not be surprised if this code does not
+	  initially work for you.  It may help to enable device hotplugging
+	  support.  As of this writing the exact hardware interface is
+	  strongly in flux, so no good recommendation can be made.
+
+config CRASH_DUMP
+	bool "kernel crash dumps (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	help
+	  Generate crash dump after being started by kexec.
+	  This should be normally only set in special crash dump kernels
+	  which are loaded in the main kernel with kexec-tools into
+	  a specially reserved region and then later executed after
+	  a crash by kdump/kexec. The crash dump kernel must be compiled
+	  to a memory address not used by the main kernel using
+	  MEMORY_START.
+
+	  For more details see Documentation/kdump/kdump.txt
+
+config SMP
+	bool "Symmetric multi-processing support"
+	depends on SYS_SUPPORTS_SMP
+	---help---
+	  This enables support for systems with more than one CPU. If you have
+	  a system with only one CPU, like most personal computers, say N. If
+	  you have a system with more than one CPU, say Y.
+
+	  If you say N here, the kernel will run on single and multiprocessor
+	  machines, but will use only one CPU of a multiprocessor machine. If
+	  you say Y here, the kernel will run on many, but not all,
+	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  will run faster if you say N here.
+
+	  People using multiprocessor machines who say Y here should also say
+	  Y to "Enhanced Real Time Clock Support", below.
+
+	  See also the <file:Documentation/smp.txt>,
+	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
+	  at <http://www.tldp.org/docs.html#howto>.
+
+	  If you don't know what to do here, say N.
+
+config NR_CPUS
+	int "Maximum number of CPUs (2-32)"
+	range 2 32
+	depends on SMP
+	default "4" if CPU_SHX3
+	default "2"
+	help
+	  This allows you to specify the maximum number of CPUs which this
+	  kernel will support.  The maximum supported value is 32 and the
+	  minimum value which makes sense is 2.
+
+	  This is purely to save memory - each supported CPU adds
+	  approximately eight kilobytes to the kernel image.
+
+source "kernel/Kconfig.preempt"
+
+config GUSA
+	def_bool y
+	depends on !SMP
+	help
+	  This enables support for gUSA (general UserSpace Atomicity).
+	  This is the default implementation for both UP and non-ll/sc
+	  CPUs, and is used by the libc, amongst others.
+
+	  For additional information, design information can be found 
+	  in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
+
+	  This should only be disabled for special cases where alternate
+	  atomicity implementations exist.
+
+endmenu
+
+menu "Boot options"
+
+config ZERO_PAGE_OFFSET
+	hex "Zero page offset"
+	default "0x00004000" if SH_MPC1211 || SH_SH03
+	default "0x00010000" if PAGE_SIZE_64KB
+	default "0x00002000" if PAGE_SIZE_8KB
+	default "0x00001000"
+	help
+	  This sets the default offset of zero page.
+
+config BOOT_LINK_OFFSET
+	hex "Link address offset for booting"
+	default "0x00800000"
+	help
+	  This option allows you to set the link address offset of the zImage.
+	  This can be useful if you are on a board which has a small amount of
+	  memory.
+
+config UBC_WAKEUP
+	bool "Wakeup UBC on startup"
+	depends on CPU_SH4 && !CPU_SH4A
+	help
+	  Selecting this option will wakeup the User Break Controller (UBC) on
+	  startup. Although the UBC is left in an awake state when the processor
+	  comes up, some boot loaders misbehave by putting the UBC to sleep in a
+	  power saving state, which causes issues with things like ptrace().
+
+	  If unsure, say N.
+
+config CMDLINE_BOOL
+	bool "Default bootloader kernel arguments"
+
+config CMDLINE
+	string "Initial kernel command string"
+	depends on CMDLINE_BOOL
+	default "console=ttySC1,115200"
+
+endmenu
+
+menu "Bus options"
+
+# Even on SuperH devices which don't have an ISA bus,
+# this variable helps the PCMCIA modules handle
+# IRQ requesting properly -- Greg Banks.
+#
+# Though we're generally not interested in it when
+# we're not using PCMCIA, so we make it dependent on
+# PCMCIA outright. -- PFM.
+config ISA
+	def_bool y
+	depends on PCMCIA && HD6446X_SERIES
+	help
+	  Find out whether you have ISA slots on your motherboard.  ISA is the
+	  name of a bus system, i.e. the way the CPU talks to the other stuff
+	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
+	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
+	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
+
+config EISA
+	bool
+	---help---
+	  The Extended Industry Standard Architecture (EISA) bus was
+	  developed as an open alternative to the IBM MicroChannel bus.
+
+	  The EISA bus provided some of the features of the IBM MicroChannel
+	  bus while maintaining backward compatibility with cards made for
+	  the older ISA bus.  The EISA bus saw limited use between 1988 and
+	  1995 when it was made obsolete by the PCI bus.
+
+	  Say Y here if you are building a kernel for an EISA-based machine.
+
+	  Otherwise, say N.
+
+config MCA
+	bool
+	help
+	  MicroChannel Architecture is found in some IBM PS/2 machines and
+	  laptops.  It is a bus system similar to PCI or ISA. See
+	  <file:Documentation/mca.txt> (and especially the web page given
+	  there) before attempting to build an MCA bus kernel.
+
+config SBUS
+	bool
+
+config SUPERHYWAY
+	tristate "SuperHyway Bus support"
+	depends on CPU_SUBTYPE_SH4_202
+
+config MAPLE
+       bool "Maple Bus support"
+       depends on SH_DREAMCAST
+       help
+         The Maple Bus is SEGA's serial communication bus for peripherals
+         on the Dreamcast. Without this bus support you won't be able to
+         get your Dreamcast keyboard etc to work, so most users
+         probably want to say 'Y' here, unless you are only using the
+         Dreamcast with a serial line terminal or a remote network
+         connection.
+
+config CF_ENABLER
+	bool "Compact Flash Enabler support"
+	depends on SOLUTION_ENGINE || SH_SH03
+	---help---
+	  Compact Flash is a small, removable mass storage device introduced
+	  in 1994 originally as a PCMCIA device.  If you say `Y' here, you
+	  compile in support for Compact Flash devices directly connected to
+	  a SuperH processor.  A Compact Flash FAQ is available at
+	  <http://www.compactflash.org/faqs/faq.htm>.
+
+	  If your board has "Directly Connected" CompactFlash at area 5 or 6,
+	  you may want to enable this option.  Then, you can use CF as
+	  primary IDE drive (only tested for SanDisk).
+
+	  If in doubt, select 'N'.
+
+choice
+	prompt "Compact Flash Connection Area"
+	depends on CF_ENABLER
+	default CF_AREA6
+
+config CF_AREA5
+	bool "Area5"
+	help
+	  If your board has "Directly Connected" CompactFlash, You should
+	  select the area where your CF is connected to.
+
+	  - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
+	  - "Area6" if it is connected to Area 6 (0x18000000)
+
+	  "Area6" will work for most boards.
+
+config CF_AREA6
+	bool "Area6"
+
+endchoice
+
+config CF_BASE_ADDR
+	hex
+	depends on CF_ENABLER
+	default "0xb8000000" if CF_AREA6
+	default "0xb4000000" if CF_AREA5
+
+source "arch/sh/drivers/pci/Kconfig"
+
+source "drivers/pci/Kconfig"
+
+source "drivers/pcmcia/Kconfig"
+
+source "drivers/pci/hotplug/Kconfig"
+
+endmenu
+
+menu "Executable file formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+menu "Power management options (EXPERIMENTAL)"
+depends on EXPERIMENTAL && SYS_SUPPORTS_PM
+
+source kernel/power/Kconfig
+
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "kernel/Kconfig.instrumentation"
+
+source "arch/sh/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
diff --git a/arch/sh/Kconfig.cpu b/arch/sh/Kconfig.cpu
index 9f329dff88b1..ef398535caf8 100644
--- a/arch/sh/Kconfig.cpu
+++ b/arch/sh/Kconfig.cpu
@@ -25,6 +25,10 @@ config SH_FPU
 
 	  This option must be set in order to enable the FPU.
 
+config SH64_FPU_DENORM_FLUSH
+	bool "Flush floating point denorms to zero"
+	depends on SH_FPU && SUPERH64
+
 config SH_FPU_EMU
 	bool "FPU emulation support"
 	depends on !SH_FPU && EXPERIMENTAL
@@ -71,6 +75,15 @@ config SPECULATIVE_EXECUTION
 
 	  If unsure, say N.
 
+config SH64_USER_MISALIGNED_FIXUP
+	bool "Fixup misaligned loads/stores occurring in user mode"
+	depends on SUPERH64
+	default y
+
+config SH64_ID2815_WORKAROUND
+	bool "Include workaround for SH5-101 cut2 silicon defect ID2815"
+	depends on CPU_SUBTYPE_SH5_101
+
 config CPU_HAS_INTEVT
 	bool
 
diff --git a/arch/sh/Kconfig.sh b/arch/sh/Kconfig.sh
deleted file mode 100644
index 23eea5cf4ca0..000000000000
--- a/arch/sh/Kconfig.sh
+++ /dev/null
@@ -1,858 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/kconfig-language.txt.
-#
-
-mainmenu "Linux/SuperH Kernel Configuration"
-
-config SUPERH
-	bool
-	default y
-	select EMBEDDED
-	help
-	  The SuperH is a RISC processor targeted for use in embedded systems
-	  and consumer electronics; it was also used in the Sega Dreamcast
-	  gaming console.  The SuperH port has a home page at
-	  <http://www.linux-sh.org/>.
-
-config SUPERH32
-	def_bool y
-
-config RWSEM_GENERIC_SPINLOCK
-	bool
-	default y
-
-config RWSEM_XCHGADD_ALGORITHM
-	bool
-
-config GENERIC_BUG
-	def_bool y
-	depends on BUG
-
-config GENERIC_FIND_NEXT_BIT
-	bool
-	default y
-
-config GENERIC_HWEIGHT
-	bool
-	default y
-
-config GENERIC_HARDIRQS
-	bool
-	default y
-
-config GENERIC_IRQ_PROBE
-	bool
-	default y
-
-config GENERIC_CALIBRATE_DELAY
-	bool
-	default y
-
-config GENERIC_IOMAP
-	bool
-
-config GENERIC_TIME
-	def_bool n
-
-config GENERIC_CLOCKEVENTS
-	def_bool n
-
-config SYS_SUPPORTS_PM
-	bool
-
-config SYS_SUPPORTS_APM_EMULATION
-	bool
-	select SYS_SUPPORTS_PM
-
-config SYS_SUPPORTS_SMP
-	bool
-
-config SYS_SUPPORTS_NUMA
-	bool
-
-config SYS_SUPPORTS_PCI
-	bool
-
-config ARCH_MAY_HAVE_PC_FDC
-	bool
-
-config STACKTRACE_SUPPORT
-	bool
-	default y
-
-config LOCKDEP_SUPPORT
-	bool
-	default y
-
-config ARCH_HAS_ILOG2_U32
-	bool
-	default n
-
-config ARCH_HAS_ILOG2_U64
-	bool
-	default n
-
-config ARCH_NO_VIRT_TO_BUS
-	def_bool y
-
-source "init/Kconfig"
-
-menu "System type"
-
-#
-# Processor families
-#
-config CPU_SH2
-	bool
-
-config CPU_SH2A
-	bool
-	select CPU_SH2
-
-config CPU_SH3
-	bool
-	select CPU_HAS_INTEVT
-	select CPU_HAS_SR_RB
-
-config CPU_SH4
-	bool
-	select CPU_HAS_INTEVT
-	select CPU_HAS_SR_RB
-	select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
-	select CPU_HAS_FPU if !CPU_SH4AL_DSP
-
-config CPU_SH4A
-	bool
-	select CPU_SH4
-
-config CPU_SH4AL_DSP
-	bool
-	select CPU_SH4A
-	select CPU_HAS_DSP
-
-config CPU_SHX2
-	bool
-
-config CPU_SHX3
-	bool
-
-choice
-	prompt "Processor sub-type selection"
-
-#
-# Processor subtypes
-#
-
-# SH-2 Processor Support
-
-config CPU_SUBTYPE_SH7619
-	bool "Support SH7619 processor"
-	select CPU_SH2
-
-# SH-2A Processor Support
-
-config CPU_SUBTYPE_SH7206
-	bool "Support SH7206 processor"
-	select CPU_SH2A
-
-# SH-3 Processor Support
-
-config CPU_SUBTYPE_SH7705
-	bool "Support SH7705 processor"
-	select CPU_SH3
-
-config CPU_SUBTYPE_SH7706
-	bool "Support SH7706 processor"
-	select CPU_SH3
-	help
-	  Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
-
-config CPU_SUBTYPE_SH7707
-	bool "Support SH7707 processor"
-	select CPU_SH3
-	help
-	  Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
-
-config CPU_SUBTYPE_SH7708
-	bool "Support SH7708 processor"
-	select CPU_SH3
-	help
-	  Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
-	  if you have a 100 Mhz SH-3 HD6417708R CPU.
-
-config CPU_SUBTYPE_SH7709
-	bool "Support SH7709 processor"
-	select CPU_SH3
-	help
-	  Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.
-
-config CPU_SUBTYPE_SH7710
-	bool "Support SH7710 processor"
-	select CPU_SH3
-	select CPU_HAS_DSP
-	help
-	  Select SH7710 if you have a SH3-DSP SH7710 CPU.
-
-config CPU_SUBTYPE_SH7712
-	bool "Support SH7712 processor"
-	select CPU_SH3
-	select CPU_HAS_DSP
-	help
-	  Select SH7712 if you have a SH3-DSP SH7712 CPU.
-
-config CPU_SUBTYPE_SH7720
-	bool "Support SH7720 processor"
-	select CPU_SH3
-	select CPU_HAS_DSP
-	help
-	  Select SH7720 if you have a SH3-DSP SH7720 CPU.
-
-# SH-4 Processor Support
-
-config CPU_SUBTYPE_SH7750
-	bool "Support SH7750 processor"
-	select CPU_SH4
-	help
-	  Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
-
-config CPU_SUBTYPE_SH7091
-	bool "Support SH7091 processor"
-	select CPU_SH4
-	help
-	  Select SH7091 if you have an SH-4 based Sega device (such as
-	  the Dreamcast, Naomi, and Naomi 2).
-
-config CPU_SUBTYPE_SH7750R
-	bool "Support SH7750R processor"
-	select CPU_SH4
-
-config CPU_SUBTYPE_SH7750S
-	bool "Support SH7750S processor"
-	select CPU_SH4
-
-config CPU_SUBTYPE_SH7751
-	bool "Support SH7751 processor"
-	select CPU_SH4
-	help
-	  Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
-	  or if you have a HD6417751R CPU.
-
-config CPU_SUBTYPE_SH7751R
-	bool "Support SH7751R processor"
-	select CPU_SH4
-
-config CPU_SUBTYPE_SH7760
-	bool "Support SH7760 processor"
-	select CPU_SH4
-
-config CPU_SUBTYPE_SH4_202
-	bool "Support SH4-202 processor"
-	select CPU_SH4
-
-# SH-4A Processor Support
-
-config CPU_SUBTYPE_SH7770
-	bool "Support SH7770 processor"
-	select CPU_SH4A
-
-config CPU_SUBTYPE_SH7780
-	bool "Support SH7780 processor"
-	select CPU_SH4A
-
-config CPU_SUBTYPE_SH7785
-	bool "Support SH7785 processor"
-	select CPU_SH4A
-	select CPU_SHX2
-	select ARCH_SPARSEMEM_ENABLE
-	select SYS_SUPPORTS_NUMA
-
-config CPU_SUBTYPE_SHX3
-	bool "Support SH-X3 processor"
-	select CPU_SH4A
-	select CPU_SHX3
-	select ARCH_SPARSEMEM_ENABLE
-	select SYS_SUPPORTS_NUMA
-	select SYS_SUPPORTS_SMP
-
-# SH4AL-DSP Processor Support
-
-config CPU_SUBTYPE_SH7343
-	bool "Support SH7343 processor"
-	select CPU_SH4AL_DSP
-
-config CPU_SUBTYPE_SH7722
-	bool "Support SH7722 processor"
-	select CPU_SH4AL_DSP
-	select CPU_SHX2
-	select ARCH_SPARSEMEM_ENABLE
-	select SYS_SUPPORTS_NUMA
-
-endchoice
-
-source "arch/sh/mm/Kconfig"
-source "arch/sh/Kconfig.cpu"
-
-menu "Board support"
-
-config SOLUTION_ENGINE
-	bool
-
-config SH_SOLUTION_ENGINE
-	bool "SolutionEngine"
-	select SOLUTION_ENGINE
-	select CPU_HAS_IPR_IRQ
-	depends on CPU_SUBTYPE_SH7705 || CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7710 || \
-	  CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7750S || \
-	  CPU_SUBTYPE_SH7750R 
-	help
-	  Select SolutionEngine if configuring for a Hitachi SH7705, SH7709,
-	  SH7710, SH7712, SH7750, SH7750S or SH7750R evaluation board.
-
-config SH_7206_SOLUTION_ENGINE
-	bool "SolutionEngine7206"
-	select SOLUTION_ENGINE
-	depends on CPU_SUBTYPE_SH7206
-	help
-	  Select 7206 SolutionEngine if configuring for a Hitachi SH7206
-	  evaluation board.
-
-config SH_7619_SOLUTION_ENGINE
-	bool "SolutionEngine7619"
-	select SOLUTION_ENGINE
-	depends on CPU_SUBTYPE_SH7619
-	help
-	  Select 7619 SolutionEngine if configuring for a Hitachi SH7619
-	  evaluation board.
-	
-config SH_7722_SOLUTION_ENGINE
-	bool "SolutionEngine7722"
-	select SOLUTION_ENGINE
-	depends on CPU_SUBTYPE_SH7722
-	help
-	  Select 7722 SolutionEngine if configuring for a Hitachi SH772
-	  evaluation board.
-
-config SH_7751_SOLUTION_ENGINE
-	bool "SolutionEngine7751"
-	select SOLUTION_ENGINE
-	select CPU_HAS_IPR_IRQ
-	depends on CPU_SUBTYPE_SH7751
-	help
-	  Select 7751 SolutionEngine if configuring for a Hitachi SH7751
-	  evaluation board.
-	  
-config SH_7780_SOLUTION_ENGINE
-	bool "SolutionEngine7780"
-	select SOLUTION_ENGINE
-	select SYS_SUPPORTS_PCI
-	depends on CPU_SUBTYPE_SH7780
-	help
-	  Select 7780 SolutionEngine if configuring for a Renesas SH7780
-	  evaluation board.
-
-config SH_7343_SOLUTION_ENGINE
-	bool "SolutionEngine7343"
-	select SOLUTION_ENGINE
-	depends on CPU_SUBTYPE_SH7343
-	help
-	  Select 7343 SolutionEngine if configuring for a Hitachi
-	  SH7343 (SH-Mobile 3AS) evaluation board.
-
-config SH_7751_SYSTEMH
-	bool "SystemH7751R"
-	depends on CPU_SUBTYPE_SH7751R
-	help
-	  Select SystemH if you are configuring for a Renesas SystemH
-	  7751R evaluation board.
-
-config SH_HP6XX
-	bool "HP6XX"
-	select SYS_SUPPORTS_APM_EMULATION
-	select HD6446X_SERIES
-	depends on CPU_SUBTYPE_SH7709
-	help
-	  Select HP6XX if configuring for a HP jornada HP6xx.
-	  More information (hardware only) at
-	  <http://www.hp.com/jornada/>.
-
-config SH_DREAMCAST
-	bool "Dreamcast"
-	select SYS_SUPPORTS_PCI
-	depends on CPU_SUBTYPE_SH7091
-	help
-	  Select Dreamcast if configuring for a SEGA Dreamcast.
-	  More information at <http://www.linux-sh.org>
-
-config SH_MPC1211
-	bool "Interface MPC1211"
-	depends on CPU_SUBTYPE_SH7751 && BROKEN
-	help
-	  CTP/PCI-SH02 is a CPU module computer that is produced
-	  by Interface Corporation.
-	  More information at <http://www.interface.co.jp>
-
-config SH_SH03
-	bool "Interface CTP/PCI-SH03"
-	depends on CPU_SUBTYPE_SH7751
-	select CPU_HAS_IPR_IRQ
-	select SYS_SUPPORTS_PCI
-	help
-	  CTP/PCI-SH03 is a CPU module computer that is produced
-	  by Interface Corporation.
-	  More information at <http://www.interface.co.jp>
-
-config SH_SECUREEDGE5410
-	bool "SecureEdge5410"
-	depends on CPU_SUBTYPE_SH7751R
-	select CPU_HAS_IPR_IRQ
-	select SYS_SUPPORTS_PCI
-	help
-	  Select SecureEdge5410 if configuring for a SnapGear SH board.
-	  This includes both the OEM SecureEdge products as well as the
-	  SME product line.
-
-config SH_HS7751RVOIP
-	bool "HS7751RVOIP"
-	depends on CPU_SUBTYPE_SH7751R
-	help
-	  Select HS7751RVOIP if configuring for a Renesas Technology
-	  Sales VoIP board.
-
-config SH_7710VOIPGW
-	bool "SH7710-VOIP-GW"
-	depends on CPU_SUBTYPE_SH7710
-	help
-	  Select this option to build a kernel for the SH7710 based
-	  VOIP GW.
-
-config SH_RTS7751R2D
-	bool "RTS7751R2D"
-	depends on CPU_SUBTYPE_SH7751R
-	select SYS_SUPPORTS_PCI
-	help
-	  Select RTS7751R2D if configuring for a Renesas Technology
-	  Sales SH-Graphics board.
-
-config SH_HIGHLANDER
-	bool "Highlander"
-	depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
-	select SYS_SUPPORTS_PCI
-
-config SH_EDOSK7705
-	bool "EDOSK7705"
-	depends on CPU_SUBTYPE_SH7705
-
-config SH_SH4202_MICRODEV
-	bool "SH4-202 MicroDev"
-	depends on CPU_SUBTYPE_SH4_202
-	help
-	  Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
-	  with an SH4-202 CPU.
-
-config SH_LANDISK
-	bool "LANDISK"
-	depends on CPU_SUBTYPE_SH7751R
-	select SYS_SUPPORTS_PCI
-	help
-	  I-O DATA DEVICE, INC. "LANDISK Series" support.
-
-config SH_TITAN
-	bool "TITAN"
-	depends on CPU_SUBTYPE_SH7751R
-	select CPU_HAS_IPR_IRQ
-	select SYS_SUPPORTS_PCI
-	help
-	  Select Titan if you are configuring for a Nimble Microsystems
-	  NetEngine NP51R.
-
-config SH_SHMIN
-	bool "SHMIN"
-	depends on CPU_SUBTYPE_SH7706
-	select CPU_HAS_IPR_IRQ
-	help
-	  Select SHMIN if configuring for the SHMIN board.
-
-config SH_LBOX_RE2
-	bool "L-BOX RE2"
-	depends on CPU_SUBTYPE_SH7751R
-	select SYS_SUPPORTS_PCI
-	help
-	  Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
-
-config SH_X3PROTO
-	bool "SH-X3 Prototype board"
-	depends on CPU_SUBTYPE_SHX3
-
-config SH_MAGIC_PANEL_R2
-	bool "Magic Panel R2"
-	depends on CPU_SUBTYPE_SH7720
-	help
-	  Select Magic Panel R2 if configuring for Magic Panel R2.
-
-endmenu
-
-source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
-source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
-source "arch/sh/boards/renesas/r7780rp/Kconfig"
-source "arch/sh/boards/magicpanelr2/Kconfig"
-
-menu "Timer and clock configuration"
-
-config SH_TMU
-	bool "TMU timer support"
-	depends on CPU_SH3 || CPU_SH4
-	select GENERIC_TIME
-	select GENERIC_CLOCKEVENTS
-	default y
-	help
-	  This enables the use of the TMU as the system timer.
-
-config SH_CMT
-	bool "CMT timer support"
-	depends on CPU_SH2
-	default y
-	help
-	  This enables the use of the CMT as the system timer.
-
-config SH_MTU2
-	bool "MTU2 timer support"
-	depends on CPU_SH2A
-	default n
-	help
-	  This enables the use of the MTU2 as the system timer.
-
-config SH_TIMER_IRQ
-	int
-	default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
-	default "86" if CPU_SUBTYPE_SH7619
-	default "140" if CPU_SUBTYPE_SH7206
-	default "16"
-
-config SH_PCLK_FREQ
-	int "Peripheral clock frequency (in Hz)"
-	default "27000000" if CPU_SUBTYPE_SH7343
-	default "31250000" if CPU_SUBTYPE_SH7619
-	default "32000000" if CPU_SUBTYPE_SH7722
-	default "33333333" if CPU_SUBTYPE_SH7770 || \
-			      CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
-			      CPU_SUBTYPE_SH7206
-	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
-	default "66000000" if CPU_SUBTYPE_SH4_202
-	default "50000000"
-	help
-	  This option is used to specify the peripheral clock frequency.
-	  This is necessary for determining the reference clock value on
-	  platforms lacking an RTC.
-
-config SH_CLK_MD
-	int "CPU Mode Pin Setting"
-	depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
-	default 6 if CPU_SUBTYPE_SH7206
-	default 5 if CPU_SUBTYPE_SH7619
-	default 0
-	help
-	  MD2 - MD0 pin setting.
-
-source "kernel/time/Kconfig"
-
-endmenu
-
-menu "CPU Frequency scaling"
-
-source "drivers/cpufreq/Kconfig"
-
-config SH_CPU_FREQ
-	tristate "SuperH CPU Frequency driver"
-	depends on CPU_FREQ
-	select CPU_FREQ_TABLE
-	help
-	  This adds the cpufreq driver for SuperH. At present, only
-	  the SH-4 is supported.
-
-	  For details, take a look at <file:Documentation/cpu-freq>.
-
-	  If unsure, say N.
-
-endmenu
-
-source "arch/sh/drivers/Kconfig"
-
-endmenu
-
-config ISA_DMA_API
-	bool
-	depends on SH_MPC1211
-	default y
-
-menu "Kernel features"
-
-source kernel/Kconfig.hz
-
-config KEXEC
-	bool "kexec system call (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
-	help
-	  kexec is a system call that implements the ability to shutdown your
-	  current kernel, and to start another kernel.  It is like a reboot
-	  but it is independent of the system firmware.  And like a reboot
-	  you can start any kernel with it, not just Linux.
-
-	  The name comes from the similarity to the exec system call.
-
-	  It is an ongoing process to be certain the hardware in a machine
-	  is properly shutdown, so do not be surprised if this code does not
-	  initially work for you.  It may help to enable device hotplugging
-	  support.  As of this writing the exact hardware interface is
-	  strongly in flux, so no good recommendation can be made.
-
-config CRASH_DUMP
-	bool "kernel crash dumps (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
-	help
-	  Generate crash dump after being started by kexec.
-	  This should be normally only set in special crash dump kernels
-	  which are loaded in the main kernel with kexec-tools into
-	  a specially reserved region and then later executed after
-	  a crash by kdump/kexec. The crash dump kernel must be compiled
-	  to a memory address not used by the main kernel using
-	  MEMORY_START.
-
-	  For more details see Documentation/kdump/kdump.txt
-
-config SMP
-	bool "Symmetric multi-processing support"
-	depends on SYS_SUPPORTS_SMP
-	---help---
-	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
-
-	  If you say N here, the kernel will run on single and multiprocessor
-	  machines, but will use only one CPU of a multiprocessor machine. If
-	  you say Y here, the kernel will run on many, but not all,
-	  singleprocessor machines. On a singleprocessor machine, the kernel
-	  will run faster if you say N here.
-
-	  People using multiprocessor machines who say Y here should also say
-	  Y to "Enhanced Real Time Clock Support", below.
-
-	  See also the <file:Documentation/smp.txt>,
-	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
-	  at <http://www.tldp.org/docs.html#howto>.
-
-	  If you don't know what to do here, say N.
-
-config NR_CPUS
-	int "Maximum number of CPUs (2-32)"
-	range 2 32
-	depends on SMP
-	default "4" if CPU_SHX3
-	default "2"
-	help
-	  This allows you to specify the maximum number of CPUs which this
-	  kernel will support.  The maximum supported value is 32 and the
-	  minimum value which makes sense is 2.
-
-	  This is purely to save memory - each supported CPU adds
-	  approximately eight kilobytes to the kernel image.
-
-source "kernel/Kconfig.preempt"
-
-config GUSA
-	def_bool y
-	depends on !SMP
-	help
-	  This enables support for gUSA (general UserSpace Atomicity).
-	  This is the default implementation for both UP and non-ll/sc
-	  CPUs, and is used by the libc, amongst others.
-
-	  For additional information, design information can be found 
-	  in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
-
-	  This should only be disabled for special cases where alternate
-	  atomicity implementations exist.
-
-endmenu
-
-menu "Boot options"
-
-config ZERO_PAGE_OFFSET
-	hex "Zero page offset"
-	default "0x00004000" if SH_MPC1211 || SH_SH03
-	default "0x00010000" if PAGE_SIZE_64KB
-	default "0x00002000" if PAGE_SIZE_8KB
-	default "0x00001000"
-	help
-	  This sets the default offset of zero page.
-
-config BOOT_LINK_OFFSET
-	hex "Link address offset for booting"
-	default "0x00800000"
-	help
-	  This option allows you to set the link address offset of the zImage.
-	  This can be useful if you are on a board which has a small amount of
-	  memory.
-
-config UBC_WAKEUP
-	bool "Wakeup UBC on startup"
-	depends on CPU_SH4 && !CPU_SH4A
-	help
-	  Selecting this option will wakeup the User Break Controller (UBC) on
-	  startup. Although the UBC is left in an awake state when the processor
-	  comes up, some boot loaders misbehave by putting the UBC to sleep in a
-	  power saving state, which causes issues with things like ptrace().
-
-	  If unsure, say N.
-
-config CMDLINE_BOOL
-	bool "Default bootloader kernel arguments"
-
-config CMDLINE
-	string "Initial kernel command string"
-	depends on CMDLINE_BOOL
-	default "console=ttySC1,115200"
-
-endmenu
-
-menu "Bus options"
-
-# Even on SuperH devices which don't have an ISA bus,
-# this variable helps the PCMCIA modules handle
-# IRQ requesting properly -- Greg Banks.
-#
-# Though we're generally not interested in it when
-# we're not using PCMCIA, so we make it dependent on
-# PCMCIA outright. -- PFM.
-config ISA
-	def_bool y
-	depends on PCMCIA && HD6446X_SERIES
-	help
-	  Find out whether you have ISA slots on your motherboard.  ISA is the
-	  name of a bus system, i.e. the way the CPU talks to the other stuff
-	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
-	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
-	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
-
-config EISA
-	bool
-	---help---
-	  The Extended Industry Standard Architecture (EISA) bus was
-	  developed as an open alternative to the IBM MicroChannel bus.
-
-	  The EISA bus provided some of the features of the IBM MicroChannel
-	  bus while maintaining backward compatibility with cards made for
-	  the older ISA bus.  The EISA bus saw limited use between 1988 and
-	  1995 when it was made obsolete by the PCI bus.
-
-	  Say Y here if you are building a kernel for an EISA-based machine.
-
-	  Otherwise, say N.
-
-config MCA
-	bool
-	help
-	  MicroChannel Architecture is found in some IBM PS/2 machines and
-	  laptops.  It is a bus system similar to PCI or ISA. See
-	  <file:Documentation/mca.txt> (and especially the web page given
-	  there) before attempting to build an MCA bus kernel.
-
-config SBUS
-	bool
-
-config SUPERHYWAY
-	tristate "SuperHyway Bus support"
-	depends on CPU_SUBTYPE_SH4_202
-
-config MAPLE
-       bool "Maple Bus support"
-       depends on SH_DREAMCAST
-       help
-         The Maple Bus is SEGA's serial communication bus for peripherals
-         on the Dreamcast. Without this bus support you won't be able to
-         get your Dreamcast keyboard etc to work, so most users
-         probably want to say 'Y' here, unless you are only using the
-         Dreamcast with a serial line terminal or a remote network
-         connection.
-
-config CF_ENABLER
-	bool "Compact Flash Enabler support"
-	depends on SOLUTION_ENGINE || SH_SH03
-	---help---
-	  Compact Flash is a small, removable mass storage device introduced
-	  in 1994 originally as a PCMCIA device.  If you say `Y' here, you
-	  compile in support for Compact Flash devices directly connected to
-	  a SuperH processor.  A Compact Flash FAQ is available at
-	  <http://www.compactflash.org/faqs/faq.htm>.
-
-	  If your board has "Directly Connected" CompactFlash at area 5 or 6,
-	  you may want to enable this option.  Then, you can use CF as
-	  primary IDE drive (only tested for SanDisk).
-
-	  If in doubt, select 'N'.
-
-choice
-	prompt "Compact Flash Connection Area"
-	depends on CF_ENABLER
-	default CF_AREA6
-
-config CF_AREA5
-	bool "Area5"
-	help
-	  If your board has "Directly Connected" CompactFlash, You should
-	  select the area where your CF is connected to.
-
-	  - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
-	  - "Area6" if it is connected to Area 6 (0x18000000)
-
-	  "Area6" will work for most boards.
-
-config CF_AREA6
-	bool "Area6"
-
-endchoice
-
-config CF_BASE_ADDR
-	hex
-	depends on CF_ENABLER
-	default "0xb8000000" if CF_AREA6
-	default "0xb4000000" if CF_AREA5
-
-source "arch/sh/drivers/pci/Kconfig"
-
-source "drivers/pci/Kconfig"
-
-source "drivers/pcmcia/Kconfig"
-
-source "drivers/pci/hotplug/Kconfig"
-
-endmenu
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-menu "Power management options (EXPERIMENTAL)"
-depends on EXPERIMENTAL && SYS_SUPPORTS_PM
-
-source kernel/power/Kconfig
-
-endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "kernel/Kconfig.instrumentation"
-
-source "arch/sh/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
diff --git a/arch/sh/Kconfig.sh64 b/arch/sh/Kconfig.sh64
deleted file mode 100644
index 9f71f9531c08..000000000000
--- a/arch/sh/Kconfig.sh64
+++ /dev/null
@@ -1,239 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/kconfig-language.txt.
-#
-
-mainmenu "Linux/SH64 Kernel Configuration"
-
-config SUPERH
-	bool
-	default y
-
-config SUPERH64
-	bool
-	default y
-
-config MMU
-	bool
-	default y
-
-config QUICKLIST
-	def_bool y
-
-config RWSEM_GENERIC_SPINLOCK
-	bool
-	default y
-
-config GENERIC_FIND_NEXT_BIT
-	bool
-	default y
-
-config GENERIC_HWEIGHT
-	bool
-	default y
-
-config GENERIC_CALIBRATE_DELAY
-	bool
-	default y
-
-config GENERIC_HARDIRQS
-	bool
-	default y
-
-config GENERIC_IRQ_PROBE
-	bool
-	default y
-
-config RWSEM_XCHGADD_ALGORITHM
-	bool
-
-config ARCH_HAS_ILOG2_U32
-	bool
-	default n
-
-config ARCH_HAS_ILOG2_U64
-	bool
-	default n
-
-config ARCH_NO_VIRT_TO_BUS
-	def_bool y
-
-source init/Kconfig
-
-menu "System type"
-
-choice
-	prompt "SuperH system type"
-	default SH_SIMULATOR
-
-config SH_SIMULATOR
-	bool "Simulator"
-
-config SH_CAYMAN
-	bool "Cayman"
-
-config SH_HARP
-	bool "ST50-Harp"
-
-endchoice
-
-choice
-	prompt "Processor family"
-	default CPU_SH5
-
-config CPU_SH5
-	bool "SH-5"
-	select CPU_HAS_FPU
-
-endchoice
-
-choice
-	prompt "Processor type"
-
-config CPU_SUBTYPE_SH5_101
-	bool "SH5-101"
-	depends on CPU_SH5
-
-config CPU_SUBTYPE_SH5_103
-	bool "SH5-103"
-	depends on CPU_SH5
-
-endchoice
-
-source "arch/sh/Kconfig.cpu"
-
-config SH64_FPU_DENORM_FLUSH
-	depends on SH_FPU
-	bool "Flush floating point denorms to zero"
-
-config SH64_USER_MISALIGNED_FIXUP
-	bool "Fixup misaligned loads/stores occurring in user mode"
-
-comment "Memory options"
-
-config MEMORY_START
-	hex "Physical memory start address"
-	default "80000000"
-
-config MEMORY_SIZE_IN_MB
-	int "Memory size (in MB)"
-	default "8" if SH_SIMULATOR
-	default "64"
-
-comment "Cache options"
-
-choice
-	prompt "DCache mode"
-	default DCACHE_DISABLED if SH_SIMULATOR
-	default DCACHE_WRITE_BACK
-
-config DCACHE_WRITE_BACK
-	bool "Write-back"
-	depends on !SH_SIMULATOR
-
-config DCACHE_WRITE_THROUGH
-	bool "Write-through"
-	depends on !SH_SIMULATOR
-
-config DCACHE_DISABLED
-	bool "Disabled"
-
-endchoice
-
-config ICACHE_DISABLED
-	bool "ICache Disabling"
-
-comment "CPU Subtype specific options"
-
-config SH64_ID2815_WORKAROUND
-	bool "Include workaround for SH5-101 cut2 silicon defect ID2815"
-
-comment "Misc options"
-
-config HEARTBEAT
-	bool "Heartbeat LED"
-	depends on SH_CAYMAN
-
-config HDSP253_LED
-	bool "Support for HDSP-253 LED"
-	depends on SH_CAYMAN
-
-config SH_DMA
-	tristate "DMA controller (DMAC) support"
-
-config PREEMPT
-	bool "Preemptible Kernel (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
-
-config SH_PCLK_FREQ
-	int "Peripheral clock frequency (in Hz)"
-	default "50000000"
-
-source "kernel/Kconfig.hz"
-source "arch/sh/mm/Kconfig"
-
-endmenu
-
-menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
-
-config ISA
-	bool
-
-config SBUS
-	bool
-
-config PCI
-	bool "PCI support"
-	depends on SH_CAYMAN
-	help
-	  Find out whether you have a PCI motherboard. PCI is the name of a
-	  bus system, i.e. the way the CPU talks to the other stuff inside
-	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
-	  VESA. If you have PCI, say Y, otherwise N.
-
-	  The PCI-HOWTO, available from
-	  <http://www.tldp.org/docs.html#howto>, contains valuable
-	  information about which PCI hardware does work under Linux and which
-	  doesn't.
-
-config SH_PCIDMA_NONCOHERENT
-	bool "Cache and PCI noncoherent"
-	depends on PCI
-	default y
-	help
-	  Enable this option if your platform does not have a CPU cache which
-	  remains coherent with PCI DMA. It is safest to say 'Y', although you
-	  will see better performance if you can say 'N', because the PCI DMA
-	  code will not have to flush the CPU's caches. If you have a PCI host
-	  bridge integrated with your SH CPU, refer carefully to the chip specs
-	  to see if you can say 'N' here. Otherwise, leave it as 'Y'.
-
-source "drivers/pci/Kconfig"
-
-source "drivers/pcmcia/Kconfig"
-
-source "drivers/pci/hotplug/Kconfig"
-
-endmenu
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "kernel/Kconfig.instrumentation"
-
-source "arch/sh/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
-- 
cgit v1.2.3-59-g8ed1b


From c96bcf958c1d79d8e8aa58722273ec7b1ffb815c Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 16:04:12 +0900
Subject: sh: Use existing CONFIG_CACHE_xx options in head_64.S.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/head_64.S | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/head_64.S b/arch/sh/kernel/head_64.S
index c969db592bef..d3479287b10a 100644
--- a/arch/sh/kernel/head_64.S
+++ b/arch/sh/kernel/head_64.S
@@ -63,23 +63,23 @@
 #define MMUDR_CACHED_L	0x000000000000015a | ALIGNED_PHYSICAL
 			/* 512 Mb, Cacheable, Write-back, read/write, Not User, Ph. Add. */
 
-#ifdef CONFIG_ICACHE_DISABLED
+#ifdef CONFIG_CACHE_OFF
 #define	ICCR0_INIT_VAL	ICCR0_OFF			/* ICACHE off */
 #else
 #define	ICCR0_INIT_VAL	ICCR0_ON | ICCR0_ICI		/* ICE + ICI */
 #endif
 #define	ICCR1_INIT_VAL	ICCR1_NOLOCK			/* No locking */
 
-#if defined (CONFIG_DCACHE_DISABLED)
+#if defined (CONFIG_CACHE_OFF)
 #define	OCCR0_INIT_VAL	OCCR0_OFF			   /* D-cache: off  */
-#elif defined (CONFIG_DCACHE_WRITE_THROUGH)
+#elif defined (CONFIG_CACHE_WRITETHROUGH)
 #define	OCCR0_INIT_VAL	OCCR0_ON | OCCR0_OCI | OCCR0_WT	   /* D-cache: on,   */
 							   /* WT, invalidate */
-#elif defined (CONFIG_DCACHE_WRITE_BACK)
+#elif defined (CONFIG_CACHE_WRITEBACK)
 #define	OCCR0_INIT_VAL	OCCR0_ON | OCCR0_OCI | OCCR0_WB	   /* D-cache: on,   */
 							   /* WB, invalidate */
 #else
-#error preprocessor flag CONFIG_DCACHE_... not recognized!
+#error preprocessor flag CONFIG_CACHE_... not recognized!
 #endif
 
 #define	OCCR1_INIT_VAL	OCCR1_NOLOCK			   /* No locking     */
-- 
cgit v1.2.3-59-g8ed1b


From 71373068067b01c963eed1350909de81fc6a6d04 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 16:53:37 +0900
Subject: sh: Merge the sh64 zImage bits.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boot/compressed/Makefile        |  46 +-----
 arch/sh/boot/compressed/Makefile_32     |  43 ++++++
 arch/sh/boot/compressed/Makefile_64     |  45 ++++++
 arch/sh/boot/compressed/cache.c         |  12 ++
 arch/sh/boot/compressed/head.S          | 120 ---------------
 arch/sh/boot/compressed/head_32.S       | 120 +++++++++++++++
 arch/sh/boot/compressed/head_64.S       | 163 +++++++++++++++++++++
 arch/sh/boot/compressed/misc.c          | 241 ------------------------------
 arch/sh/boot/compressed/misc_32.c       | 241 ++++++++++++++++++++++++++++++
 arch/sh/boot/compressed/misc_64.c       | 250 ++++++++++++++++++++++++++++++++
 arch/sh/boot/compressed/vmlinux_64.lds  |  64 ++++++++
 arch/sh64/boot/Makefile                 |  20 ---
 arch/sh64/boot/compressed/Makefile      |  46 ------
 arch/sh64/boot/compressed/cache.c       |  39 -----
 arch/sh64/boot/compressed/head.S        | 164 ---------------------
 arch/sh64/boot/compressed/install.sh    |  56 -------
 arch/sh64/boot/compressed/misc.c        | 250 --------------------------------
 arch/sh64/boot/compressed/vmlinux.lds.S |  64 --------
 18 files changed, 942 insertions(+), 1042 deletions(-)
 create mode 100644 arch/sh/boot/compressed/Makefile_32
 create mode 100644 arch/sh/boot/compressed/Makefile_64
 create mode 100644 arch/sh/boot/compressed/cache.c
 delete mode 100644 arch/sh/boot/compressed/head.S
 create mode 100644 arch/sh/boot/compressed/head_32.S
 create mode 100644 arch/sh/boot/compressed/head_64.S
 delete mode 100644 arch/sh/boot/compressed/misc.c
 create mode 100644 arch/sh/boot/compressed/misc_32.c
 create mode 100644 arch/sh/boot/compressed/misc_64.c
 create mode 100644 arch/sh/boot/compressed/vmlinux_64.lds
 delete mode 100644 arch/sh64/boot/Makefile
 delete mode 100644 arch/sh64/boot/compressed/Makefile
 delete mode 100644 arch/sh64/boot/compressed/cache.c
 delete mode 100644 arch/sh64/boot/compressed/head.S
 delete mode 100644 arch/sh64/boot/compressed/install.sh
 delete mode 100644 arch/sh64/boot/compressed/misc.c
 delete mode 100644 arch/sh64/boot/compressed/vmlinux.lds.S

(limited to 'arch')

diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile
index 906a13f82fe0..efb01dc3c8c3 100644
--- a/arch/sh/boot/compressed/Makefile
+++ b/arch/sh/boot/compressed/Makefile
@@ -1,43 +1,5 @@
-#
-# linux/arch/sh/boot/compressed/Makefile
-#
-# create a compressed vmlinux image from the original vmlinux
-#
-
-targets		:= vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
-EXTRA_AFLAGS	:= -traditional
-
-OBJECTS = $(obj)/head.o $(obj)/misc.o
-
-ifdef CONFIG_SH_STANDARD_BIOS
-OBJECTS += $(obj)/../../kernel/sh_bios.o
+ifeq ($(CONFIG_SUPERH32),y)
+include ${srctree}/arch/sh/boot/compressed/Makefile_32
+else
+include ${srctree}/arch/sh/boot/compressed/Makefile_64
 endif
-
-#
-# IMAGE_OFFSET is the load offset of the compression loader
-#
-IMAGE_OFFSET	:= $(shell /bin/bash -c 'printf "0x%08x" \
-		     $$[$(CONFIG_PAGE_OFFSET)  + \
-			$(CONFIG_MEMORY_START) + \
-			$(CONFIG_BOOT_LINK_OFFSET)]')
-
-LIBGCC	:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
-
-LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T $(obj)/../../kernel/vmlinux.lds
-
-
-$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE
-	$(call if_changed,ld)
-	@:
-
-$(obj)/vmlinux.bin: vmlinux FORCE
-	$(call if_changed,objcopy)
-
-$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
-	$(call if_changed,gzip)
-
-LDFLAGS_piggy.o := -r --format binary --oformat elf32-sh-linux -T
-OBJCOPYFLAGS += -R .empty_zero_page
-
-$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
-	$(call if_changed,ld)
diff --git a/arch/sh/boot/compressed/Makefile_32 b/arch/sh/boot/compressed/Makefile_32
new file mode 100644
index 000000000000..6ac8d4a4ed1d
--- /dev/null
+++ b/arch/sh/boot/compressed/Makefile_32
@@ -0,0 +1,43 @@
+#
+# linux/arch/sh/boot/compressed/Makefile
+#
+# create a compressed vmlinux image from the original vmlinux
+#
+
+targets		:= vmlinux vmlinux.bin vmlinux.bin.gz \
+		   head_32.o misc_32.o piggy.o
+EXTRA_AFLAGS	:= -traditional
+
+OBJECTS = $(obj)/head_32.o $(obj)/misc_32.o
+
+ifdef CONFIG_SH_STANDARD_BIOS
+OBJECTS += $(obj)/../../kernel/sh_bios.o
+endif
+
+#
+# IMAGE_OFFSET is the load offset of the compression loader
+#
+IMAGE_OFFSET	:= $(shell /bin/bash -c 'printf "0x%08x" \
+		     $$[$(CONFIG_PAGE_OFFSET)  + \
+			$(CONFIG_MEMORY_START) + \
+			$(CONFIG_BOOT_LINK_OFFSET)]')
+
+LIBGCC	:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
+
+LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T $(obj)/../../kernel/vmlinux.lds
+
+$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE
+	$(call if_changed,ld)
+	@:
+
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
+LDFLAGS_piggy.o := -r --format binary --oformat elf32-sh-linux -T
+OBJCOPYFLAGS += -R .empty_zero_page
+
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
+	$(call if_changed,ld)
diff --git a/arch/sh/boot/compressed/Makefile_64 b/arch/sh/boot/compressed/Makefile_64
new file mode 100644
index 000000000000..0b48ae99922b
--- /dev/null
+++ b/arch/sh/boot/compressed/Makefile_64
@@ -0,0 +1,45 @@
+#
+# linux/arch/sh64/boot/compressed/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 2002 Stuart Menefy
+# Copyright (C) 2004 Paul Mundt
+#
+# create a compressed vmlinux image from the original vmlinux
+#
+
+targets		:= vmlinux vmlinux.bin vmlinux.bin.gz \
+		   head_64.o misc_64.o cache.o piggy.o
+EXTRA_AFLAGS	:= -traditional
+
+OBJECTS		:= $(obj)/vmlinux_64.lds $(obj)/head_64.o $(obj)/misc_64.o \
+		   $(obj)/cache.o
+
+#
+# ZIMAGE_OFFSET is the load offset of the compression loader
+# (4M for the kernel plus 64K for this loader)
+#
+ZIMAGE_OFFSET	:= $(shell /bin/bash -c 'printf "0x%08x" \
+		     $$[$(CONFIG_PAGE_OFFSET)+0x400000+0x10000]')
+
+LDFLAGS_vmlinux := -Ttext $(ZIMAGE_OFFSET) -e startup \
+		    -T $(obj)/../../kernel/vmlinux.lds
+
+$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE
+	$(call if_changed,ld)
+	@:
+
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
+LDFLAGS_piggy.o := -r --format binary --oformat elf32-sh64-linux -T
+OBJCOPYFLAGS += -R .empty_zero_page
+
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
+	$(call if_changed,ld)
diff --git a/arch/sh/boot/compressed/cache.c b/arch/sh/boot/compressed/cache.c
new file mode 100644
index 000000000000..e27fc74f228c
--- /dev/null
+++ b/arch/sh/boot/compressed/cache.c
@@ -0,0 +1,12 @@
+int cache_control(unsigned int command)
+{
+	volatile unsigned int *p = (volatile unsigned int *) 0x80000000;
+	int i;
+
+	for (i = 0; i < (32 * 1024); i += 32) {
+		(void)*p;
+		p += (32 / sizeof (int));
+	}
+
+	return 0;
+}
diff --git a/arch/sh/boot/compressed/head.S b/arch/sh/boot/compressed/head.S
deleted file mode 100644
index a8399b013729..000000000000
--- a/arch/sh/boot/compressed/head.S
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- *  linux/arch/sh/boot/compressed/head.S
- *
- *  Copyright (C) 1999 Stuart Menefy
- *  Copyright (C) 2003 SUGIOKA Toshinobu
- */
-
-.text
-
-#include <linux/linkage.h>
-#include <asm/page.h>
-
-	.global	startup
-startup:
-	/* Load initial status register */
-	mov.l   init_sr, r1
-	ldc     r1, sr
-
-	/* Move myself to proper location if necessary */
-	mova	1f, r0
-	mov.l	1f, r2
-	cmp/eq	r2, r0
-	bt	clear_bss
-	sub	r0, r2
-	mov.l	bss_start_addr, r0
-	mov	#0xe0, r1
-	and	r1, r0			! align cache line
-	mov.l	text_start_addr, r3
-	mov	r0, r1
-	sub	r2, r1
-3:
-	mov.l	@r1, r4
-	mov.l	@(4,r1), r5
-	mov.l	@(8,r1), r6
-	mov.l	@(12,r1), r7
-	mov.l	@(16,r1), r8
-	mov.l	@(20,r1), r9
-	mov.l	@(24,r1), r10
-	mov.l	@(28,r1), r11
-	mov.l	r4, @r0
-	mov.l	r5, @(4,r0)
-	mov.l	r6, @(8,r0)
-	mov.l	r7, @(12,r0)
-	mov.l	r8, @(16,r0)
-	mov.l	r9, @(20,r0)
-	mov.l	r10, @(24,r0)
-	mov.l	r11, @(28,r0)
-#ifdef CONFIG_CPU_SH4
-	ocbwb	@r0
-#endif
-	cmp/hi	r3, r0
-	add	#-32, r0
-	bt/s	3b
-	 add	#-32, r1
-	mov.l	2f, r0
-	jmp	@r0
-	 nop
-
-	.align 2
-1:	.long	1b
-2:	.long	clear_bss
-text_start_addr:
-	.long	startup
-
-	/* Clear BSS */
-clear_bss:
-	mov.l	end_addr, r1
-	mov.l	bss_start_addr, r2
-	mov	#0, r0
-l1:
-	mov.l	r0, @-r1
-	cmp/eq	r1,r2
-	bf	l1
-
-	/* Set the initial pointer. */
-	mov.l	init_stack_addr, r0
-	mov.l	@r0, r15
-
-	/* Decompress the kernel */
-	mov.l	decompress_kernel_addr, r0
-	jsr	@r0
-	nop
-
-	/* Jump to the start of the decompressed kernel */
-	mov.l	kernel_start_addr, r0
-	jmp	@r0
-	nop
-	
-	.align	2
-bss_start_addr:
-	.long	__bss_start
-end_addr:
-	.long	_end
-init_sr:
-	.long	0x400000F0	/* Privileged mode, Bank=0, Block=0, IMASK=0xF */
-init_stack_addr:
-	.long	stack_start
-decompress_kernel_addr:
-	.long	decompress_kernel
-kernel_start_addr:
-	.long	_text+PAGE_SIZE
-
-	.align	9
-fake_headers_as_bzImage:
-	.word	0
-	.ascii	"HdrS"		! header signature
-	.word	0x0202		! header version number (>= 0x0105)
-				! or else old loadlin-1.5 will fail)
-	.word	0		! default_switch
-	.word	0		! SETUPSEG
-	.word	0x1000
-	.word	0		! pointing to kernel version string
-	.byte	0		! = 0, old one (LILO, Loadlin,
-				! 0xTV: T=0 for LILO
-				!       V = version
-	.byte	1		! Load flags bzImage=1
-	.word	0x8000		! size to move, when setup is not
-	.long	0x100000	! 0x100000 = default for big kernel
-	.long	0		! address of loaded ramdisk image
-	.long	0		# its size in bytes
diff --git a/arch/sh/boot/compressed/head_32.S b/arch/sh/boot/compressed/head_32.S
new file mode 100644
index 000000000000..a8399b013729
--- /dev/null
+++ b/arch/sh/boot/compressed/head_32.S
@@ -0,0 +1,120 @@
+/*
+ *  linux/arch/sh/boot/compressed/head.S
+ *
+ *  Copyright (C) 1999 Stuart Menefy
+ *  Copyright (C) 2003 SUGIOKA Toshinobu
+ */
+
+.text
+
+#include <linux/linkage.h>
+#include <asm/page.h>
+
+	.global	startup
+startup:
+	/* Load initial status register */
+	mov.l   init_sr, r1
+	ldc     r1, sr
+
+	/* Move myself to proper location if necessary */
+	mova	1f, r0
+	mov.l	1f, r2
+	cmp/eq	r2, r0
+	bt	clear_bss
+	sub	r0, r2
+	mov.l	bss_start_addr, r0
+	mov	#0xe0, r1
+	and	r1, r0			! align cache line
+	mov.l	text_start_addr, r3
+	mov	r0, r1
+	sub	r2, r1
+3:
+	mov.l	@r1, r4
+	mov.l	@(4,r1), r5
+	mov.l	@(8,r1), r6
+	mov.l	@(12,r1), r7
+	mov.l	@(16,r1), r8
+	mov.l	@(20,r1), r9
+	mov.l	@(24,r1), r10
+	mov.l	@(28,r1), r11
+	mov.l	r4, @r0
+	mov.l	r5, @(4,r0)
+	mov.l	r6, @(8,r0)
+	mov.l	r7, @(12,r0)
+	mov.l	r8, @(16,r0)
+	mov.l	r9, @(20,r0)
+	mov.l	r10, @(24,r0)
+	mov.l	r11, @(28,r0)
+#ifdef CONFIG_CPU_SH4
+	ocbwb	@r0
+#endif
+	cmp/hi	r3, r0
+	add	#-32, r0
+	bt/s	3b
+	 add	#-32, r1
+	mov.l	2f, r0
+	jmp	@r0
+	 nop
+
+	.align 2
+1:	.long	1b
+2:	.long	clear_bss
+text_start_addr:
+	.long	startup
+
+	/* Clear BSS */
+clear_bss:
+	mov.l	end_addr, r1
+	mov.l	bss_start_addr, r2
+	mov	#0, r0
+l1:
+	mov.l	r0, @-r1
+	cmp/eq	r1,r2
+	bf	l1
+
+	/* Set the initial pointer. */
+	mov.l	init_stack_addr, r0
+	mov.l	@r0, r15
+
+	/* Decompress the kernel */
+	mov.l	decompress_kernel_addr, r0
+	jsr	@r0
+	nop
+
+	/* Jump to the start of the decompressed kernel */
+	mov.l	kernel_start_addr, r0
+	jmp	@r0
+	nop
+	
+	.align	2
+bss_start_addr:
+	.long	__bss_start
+end_addr:
+	.long	_end
+init_sr:
+	.long	0x400000F0	/* Privileged mode, Bank=0, Block=0, IMASK=0xF */
+init_stack_addr:
+	.long	stack_start
+decompress_kernel_addr:
+	.long	decompress_kernel
+kernel_start_addr:
+	.long	_text+PAGE_SIZE
+
+	.align	9
+fake_headers_as_bzImage:
+	.word	0
+	.ascii	"HdrS"		! header signature
+	.word	0x0202		! header version number (>= 0x0105)
+				! or else old loadlin-1.5 will fail)
+	.word	0		! default_switch
+	.word	0		! SETUPSEG
+	.word	0x1000
+	.word	0		! pointing to kernel version string
+	.byte	0		! = 0, old one (LILO, Loadlin,
+				! 0xTV: T=0 for LILO
+				!       V = version
+	.byte	1		! Load flags bzImage=1
+	.word	0x8000		! size to move, when setup is not
+	.long	0x100000	! 0x100000 = default for big kernel
+	.long	0		! address of loaded ramdisk image
+	.long	0		# its size in bytes
diff --git a/arch/sh/boot/compressed/head_64.S b/arch/sh/boot/compressed/head_64.S
new file mode 100644
index 000000000000..1d4ecbfc767c
--- /dev/null
+++ b/arch/sh/boot/compressed/head_64.S
@@ -0,0 +1,163 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/shmedia/boot/compressed/head.S
+ *
+ * Copied from
+ *   arch/shmedia/kernel/head.S
+ * which carried the copyright:
+ *   Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ * Modification for compressed loader:
+ *   Copyright (C) 2002 Stuart Menefy (stuart.menefy@st.com)
+ */
+#include <linux/linkage.h>
+#include <asm/cache.h>
+#include <asm/cpu/mmu_context.h>
+#include <asm/cpu/registers.h>
+
+/*
+ * Fixed TLB entries to identity map the beginning of RAM
+ */
+#define MMUIR_TEXT_H	0x0000000000000003 | CONFIG_MEMORY_START
+			/* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
+#define MMUIR_TEXT_L	0x000000000000009a | CONFIG_MEMORY_START
+			/* 512 Mb, Cacheable (Write-back), execute, Not User, Ph. Add. */
+
+#define MMUDR_CACHED_H	0x0000000000000003 | CONFIG_MEMORY_START
+			/* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
+#define MMUDR_CACHED_L	0x000000000000015a | CONFIG_MEMORY_START
+			/* 512 Mb, Cacheable (Write-back), read/write, Not User, Ph. Add. */
+
+#define	ICCR0_INIT_VAL	ICCR0_ON | ICCR0_ICI		/* ICE + ICI */
+#define	ICCR1_INIT_VAL	ICCR1_NOLOCK			/* No locking */
+
+#if 1
+#define	OCCR0_INIT_VAL	OCCR0_ON | OCCR0_OCI | OCCR0_WB	/* OCE + OCI + WB */
+#else
+#define	OCCR0_INIT_VAL	OCCR0_OFF
+#endif
+#define	OCCR1_INIT_VAL	OCCR1_NOLOCK			/* No locking */
+
+	.text
+
+	.global	startup
+startup:
+	/*
+	 * Prevent speculative fetch on device memory due to
+	 * uninitialized target registers.
+	 * This must be executed before the first branch.
+	 */
+	ptabs/u	r63, tr0
+	ptabs/u	r63, tr1
+	ptabs/u	r63, tr2
+	ptabs/u	r63, tr3
+	ptabs/u	r63, tr4
+	ptabs/u	r63, tr5
+	ptabs/u	r63, tr6
+	ptabs/u	r63, tr7
+	synci
+
+	/*
+	 * Set initial TLB entries for cached and uncached regions.
+	 * Note: PTA/BLINK is PIC code, PTABS/BLINK isn't !
+	 */
+	/* Clear ITLBs */
+	pta	1f, tr1
+	movi	ITLB_FIXED, r21
+	movi	ITLB_LAST_VAR_UNRESTRICTED+TLB_STEP, r22
+1:	putcfg	r21, 0, r63		/* Clear MMUIR[n].PTEH.V */
+	addi	r21, TLB_STEP, r21
+        bne	r21, r22, tr1
+
+	/* Clear DTLBs */
+	pta	1f, tr1
+	movi	DTLB_FIXED, r21
+	movi	DTLB_LAST_VAR_UNRESTRICTED+TLB_STEP, r22
+1:	putcfg	r21, 0, r63		/* Clear MMUDR[n].PTEH.V */
+	addi	r21, TLB_STEP, r21
+        bne	r21, r22, tr1
+
+	/* Map one big (512Mb) page for ITLB */
+	movi	ITLB_FIXED, r21
+	movi	MMUIR_TEXT_L, r22	/* PTEL first */
+	putcfg	r21, 1, r22		/* Set MMUIR[0].PTEL */
+	movi	MMUIR_TEXT_H, r22	/* PTEH last */
+	putcfg	r21, 0, r22		/* Set MMUIR[0].PTEH */
+
+	/* Map one big CACHED (512Mb) page for DTLB */
+	movi	DTLB_FIXED, r21
+	movi	MMUDR_CACHED_L, r22	/* PTEL first */
+	putcfg	r21, 1, r22		/* Set MMUDR[0].PTEL */
+	movi	MMUDR_CACHED_H, r22	/* PTEH last */
+	putcfg	r21, 0, r22		/* Set MMUDR[0].PTEH */
+
+	/* ICache */
+	movi	ICCR_BASE, r21
+	movi	ICCR0_INIT_VAL, r22
+	movi	ICCR1_INIT_VAL, r23
+	putcfg	r21, ICCR_REG0, r22
+	putcfg	r21, ICCR_REG1, r23
+	synci
+
+	/* OCache */
+	movi	OCCR_BASE, r21
+	movi	OCCR0_INIT_VAL, r22
+	movi	OCCR1_INIT_VAL, r23
+	putcfg	r21, OCCR_REG0, r22
+	putcfg	r21, OCCR_REG1, r23
+	synco
+
+	/*
+	 * Enable the MMU.
+	 * From here-on code can be non-PIC.
+	 */
+	movi	SR_HARMLESS | SR_ENABLE_MMU, r22
+	putcon	r22, SSR
+	movi	1f, r22
+	putcon	r22, SPC
+	synco
+	rte				/* And now go into the hyperspace ... */
+1:					/* ... that's the next instruction ! */
+
+	/* Set initial stack pointer */
+	movi	datalabel stack_start, r0
+	ld.l	r0, 0, r15
+
+	/*
+	 * Clear bss
+	 */
+	pt	1f, tr1
+	movi	datalabel __bss_start, r22
+	movi	datalabel _end, r23
+1:	st.l	r22, 0, r63
+	addi	r22, 4, r22
+	bne	r22, r23, tr1
+
+	/*
+	 * Decompress the kernel.
+	 */
+	pt	decompress_kernel, tr0
+	blink	tr0, r18
+
+	/*
+	 * Disable the MMU.
+	 */
+	movi	SR_HARMLESS, r22
+	putcon	r22, SSR
+	movi	1f, r22
+	putcon	r22, SPC
+	synco
+	rte				/* And now go into the hyperspace ... */
+1:					/* ... that's the next instruction ! */
+
+	/* Jump into the decompressed kernel */
+	movi	datalabel (CONFIG_MEMORY_START + 0x2000)+1, r19
+	ptabs	r19, tr0
+	blink	tr0, r18
+
+	/* Shouldn't return here, but just in case, loop forever */
+	pt	1f, tr0
+1:	blink	tr0, r63
diff --git a/arch/sh/boot/compressed/misc.c b/arch/sh/boot/compressed/misc.c
deleted file mode 100644
index df65e305acf7..000000000000
--- a/arch/sh/boot/compressed/misc.c
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * arch/sh/boot/compressed/misc.c
- *
- * This is a collection of several routines from gzip-1.0.3
- * adapted for Linux.
- *
- * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
- *
- * Adapted for SH by Stuart Menefy, Aug 1999
- *
- * Modified to use standard LinuxSH BIOS by Greg Banks 7Jul2000
- */
-
-#include <asm/uaccess.h>
-#include <asm/addrspace.h>
-#include <asm/page.h>
-#ifdef CONFIG_SH_STANDARD_BIOS
-#include <asm/sh_bios.h>
-#endif
-
-/*
- * gzip declarations
- */
-
-#define OF(args)  args
-#define STATIC static
-
-#undef memset
-#undef memcpy
-#define memzero(s, n)     memset ((s), 0, (n))
-
-typedef unsigned char  uch;
-typedef unsigned short ush;
-typedef unsigned long  ulg;
-
-#define WSIZE 0x8000		/* Window size must be at least 32k, */
-				/* and a power of two */
-
-static uch *inbuf;	     /* input buffer */
-static uch window[WSIZE];    /* Sliding window buffer */
-
-static unsigned insize = 0;  /* valid bytes in inbuf */
-static unsigned inptr = 0;   /* index of next byte to be processed in inbuf */
-static unsigned outcnt = 0;  /* bytes in output buffer */
-
-/* gzip flag byte */
-#define ASCII_FLAG   0x01 /* bit 0 set: file probably ASCII text */
-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
-#define COMMENT      0x10 /* bit 4 set: file comment present */
-#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
-#define RESERVED     0xC0 /* bit 6,7:   reserved */
-
-#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
-
-/* Diagnostic functions */
-#ifdef DEBUG
-#  define Assert(cond,msg) {if(!(cond)) error(msg);}
-#  define Trace(x) fprintf x
-#  define Tracev(x) {if (verbose) fprintf x ;}
-#  define Tracevv(x) {if (verbose>1) fprintf x ;}
-#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
-#else
-#  define Assert(cond,msg)
-#  define Trace(x)
-#  define Tracev(x)
-#  define Tracevv(x)
-#  define Tracec(c,x)
-#  define Tracecv(c,x)
-#endif
-
-static int  fill_inbuf(void);
-static void flush_window(void);
-static void error(char *m);
-static void gzip_mark(void **);
-static void gzip_release(void **);
-
-extern char input_data[];
-extern int input_len;
-
-static long bytes_out = 0;
-static uch *output_data;
-static unsigned long output_ptr = 0;
-
-static void *malloc(int size);
-static void free(void *where);
-static void error(char *m);
-static void gzip_mark(void **);
-static void gzip_release(void **);
-
-int puts(const char *);
-
-extern int _text;		/* Defined in vmlinux.lds.S */
-extern int _end;
-static unsigned long free_mem_ptr;
-static unsigned long free_mem_end_ptr;
-
-#define HEAP_SIZE             0x10000
-
-#include "../../../../lib/inflate.c"
-
-static void *malloc(int size)
-{
-	void *p;
-
-	if (size <0) error("Malloc error");
-	if (free_mem_ptr == 0) error("Memory error");
-
-	free_mem_ptr = (free_mem_ptr + 3) & ~3;	/* Align */
-
-	p = (void *)free_mem_ptr;
-	free_mem_ptr += size;
-
-	if (free_mem_ptr >= free_mem_end_ptr)
-		error("Out of memory");
-
-	return p;
-}
-
-static void free(void *where)
-{	/* Don't care */
-}
-
-static void gzip_mark(void **ptr)
-{
-	*ptr = (void *) free_mem_ptr;
-}
-
-static void gzip_release(void **ptr)
-{
-	free_mem_ptr = (long) *ptr;
-}
-
-#ifdef CONFIG_SH_STANDARD_BIOS
-size_t strlen(const char *s)
-{
-	int i = 0;
-
-	while (*s++)
-		i++;
-	return i;
-}
-
-int puts(const char *s)
-{
-	int len = strlen(s);
-	sh_bios_console_write(s, len);
-	return len;
-}
-#else
-int puts(const char *s)
-{
-	/* This should be updated to use the sh-sci routines */
-	return 0;
-}
-#endif
-
-void* memset(void* s, int c, size_t n)
-{
-	int i;
-	char *ss = (char*)s;
-
-	for (i=0;i<n;i++) ss[i] = c;
-	return s;
-}
-
-void* memcpy(void* __dest, __const void* __src,
-			    size_t __n)
-{
-	int i;
-	char *d = (char *)__dest, *s = (char *)__src;
-
-	for (i=0;i<__n;i++) d[i] = s[i];
-	return __dest;
-}
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty
- * and at least one byte is really needed.
- */
-static int fill_inbuf(void)
-{
-	if (insize != 0) {
-		error("ran out of input data");
-	}
-
-	inbuf = input_data;
-	insize = input_len;
-	inptr = 1;
-	return inbuf[0];
-}
-
-/* ===========================================================================
- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
- * (Used for the decompressed data only.)
- */
-static void flush_window(void)
-{
-    ulg c = crc;         /* temporary variable */
-    unsigned n;
-    uch *in, *out, ch;
-
-    in = window;
-    out = &output_data[output_ptr];
-    for (n = 0; n < outcnt; n++) {
-	    ch = *out++ = *in++;
-	    c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
-    }
-    crc = c;
-    bytes_out += (ulg)outcnt;
-    output_ptr += (ulg)outcnt;
-    outcnt = 0;
-}
-
-static void error(char *x)
-{
-	puts("\n\n");
-	puts(x);
-	puts("\n\n -- System halted");
-
-	while(1);	/* Halt */
-}
-
-#define STACK_SIZE (4096)
-long user_stack [STACK_SIZE];
-long* stack_start = &user_stack[STACK_SIZE];
-
-void decompress_kernel(void)
-{
-	output_data = 0;
-	output_ptr = P2SEGADDR((unsigned long)&_text+PAGE_SIZE);
-	free_mem_ptr = (unsigned long)&_end;
-	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
-
-	makecrc();
-	puts("Uncompressing Linux... ");
-	gunzip();
-	puts("Ok, booting the kernel.\n");
-}
diff --git a/arch/sh/boot/compressed/misc_32.c b/arch/sh/boot/compressed/misc_32.c
new file mode 100644
index 000000000000..df65e305acf7
--- /dev/null
+++ b/arch/sh/boot/compressed/misc_32.c
@@ -0,0 +1,241 @@
+/*
+ * arch/sh/boot/compressed/misc.c
+ *
+ * This is a collection of several routines from gzip-1.0.3
+ * adapted for Linux.
+ *
+ * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ *
+ * Adapted for SH by Stuart Menefy, Aug 1999
+ *
+ * Modified to use standard LinuxSH BIOS by Greg Banks 7Jul2000
+ */
+
+#include <asm/uaccess.h>
+#include <asm/addrspace.h>
+#include <asm/page.h>
+#ifdef CONFIG_SH_STANDARD_BIOS
+#include <asm/sh_bios.h>
+#endif
+
+/*
+ * gzip declarations
+ */
+
+#define OF(args)  args
+#define STATIC static
+
+#undef memset
+#undef memcpy
+#define memzero(s, n)     memset ((s), 0, (n))
+
+typedef unsigned char  uch;
+typedef unsigned short ush;
+typedef unsigned long  ulg;
+
+#define WSIZE 0x8000		/* Window size must be at least 32k, */
+				/* and a power of two */
+
+static uch *inbuf;	     /* input buffer */
+static uch window[WSIZE];    /* Sliding window buffer */
+
+static unsigned insize = 0;  /* valid bytes in inbuf */
+static unsigned inptr = 0;   /* index of next byte to be processed in inbuf */
+static unsigned outcnt = 0;  /* bytes in output buffer */
+
+/* gzip flag byte */
+#define ASCII_FLAG   0x01 /* bit 0 set: file probably ASCII text */
+#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
+#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
+#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
+#define COMMENT      0x10 /* bit 4 set: file comment present */
+#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
+#define RESERVED     0xC0 /* bit 6,7:   reserved */
+
+#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  define Assert(cond,msg) {if(!(cond)) error(msg);}
+#  define Trace(x) fprintf x
+#  define Tracev(x) {if (verbose) fprintf x ;}
+#  define Tracevv(x) {if (verbose>1) fprintf x ;}
+#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
+#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+static int  fill_inbuf(void);
+static void flush_window(void);
+static void error(char *m);
+static void gzip_mark(void **);
+static void gzip_release(void **);
+
+extern char input_data[];
+extern int input_len;
+
+static long bytes_out = 0;
+static uch *output_data;
+static unsigned long output_ptr = 0;
+
+static void *malloc(int size);
+static void free(void *where);
+static void error(char *m);
+static void gzip_mark(void **);
+static void gzip_release(void **);
+
+int puts(const char *);
+
+extern int _text;		/* Defined in vmlinux.lds.S */
+extern int _end;
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+
+#define HEAP_SIZE             0x10000
+
+#include "../../../../lib/inflate.c"
+
+static void *malloc(int size)
+{
+	void *p;
+
+	if (size <0) error("Malloc error");
+	if (free_mem_ptr == 0) error("Memory error");
+
+	free_mem_ptr = (free_mem_ptr + 3) & ~3;	/* Align */
+
+	p = (void *)free_mem_ptr;
+	free_mem_ptr += size;
+
+	if (free_mem_ptr >= free_mem_end_ptr)
+		error("Out of memory");
+
+	return p;
+}
+
+static void free(void *where)
+{	/* Don't care */
+}
+
+static void gzip_mark(void **ptr)
+{
+	*ptr = (void *) free_mem_ptr;
+}
+
+static void gzip_release(void **ptr)
+{
+	free_mem_ptr = (long) *ptr;
+}
+
+#ifdef CONFIG_SH_STANDARD_BIOS
+size_t strlen(const char *s)
+{
+	int i = 0;
+
+	while (*s++)
+		i++;
+	return i;
+}
+
+int puts(const char *s)
+{
+	int len = strlen(s);
+	sh_bios_console_write(s, len);
+	return len;
+}
+#else
+int puts(const char *s)
+{
+	/* This should be updated to use the sh-sci routines */
+	return 0;
+}
+#endif
+
+void* memset(void* s, int c, size_t n)
+{
+	int i;
+	char *ss = (char*)s;
+
+	for (i=0;i<n;i++) ss[i] = c;
+	return s;
+}
+
+void* memcpy(void* __dest, __const void* __src,
+			    size_t __n)
+{
+	int i;
+	char *d = (char *)__dest, *s = (char *)__src;
+
+	for (i=0;i<__n;i++) d[i] = s[i];
+	return __dest;
+}
+
+/* ===========================================================================
+ * Fill the input buffer. This is called only when the buffer is empty
+ * and at least one byte is really needed.
+ */
+static int fill_inbuf(void)
+{
+	if (insize != 0) {
+		error("ran out of input data");
+	}
+
+	inbuf = input_data;
+	insize = input_len;
+	inptr = 1;
+	return inbuf[0];
+}
+
+/* ===========================================================================
+ * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+ * (Used for the decompressed data only.)
+ */
+static void flush_window(void)
+{
+    ulg c = crc;         /* temporary variable */
+    unsigned n;
+    uch *in, *out, ch;
+
+    in = window;
+    out = &output_data[output_ptr];
+    for (n = 0; n < outcnt; n++) {
+	    ch = *out++ = *in++;
+	    c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
+    }
+    crc = c;
+    bytes_out += (ulg)outcnt;
+    output_ptr += (ulg)outcnt;
+    outcnt = 0;
+}
+
+static void error(char *x)
+{
+	puts("\n\n");
+	puts(x);
+	puts("\n\n -- System halted");
+
+	while(1);	/* Halt */
+}
+
+#define STACK_SIZE (4096)
+long user_stack [STACK_SIZE];
+long* stack_start = &user_stack[STACK_SIZE];
+
+void decompress_kernel(void)
+{
+	output_data = 0;
+	output_ptr = P2SEGADDR((unsigned long)&_text+PAGE_SIZE);
+	free_mem_ptr = (unsigned long)&_end;
+	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
+
+	makecrc();
+	puts("Uncompressing Linux... ");
+	gunzip();
+	puts("Ok, booting the kernel.\n");
+}
diff --git a/arch/sh/boot/compressed/misc_64.c b/arch/sh/boot/compressed/misc_64.c
new file mode 100644
index 000000000000..aea00c53ce29
--- /dev/null
+++ b/arch/sh/boot/compressed/misc_64.c
@@ -0,0 +1,250 @@
+/*
+ * arch/sh64/boot/compressed/misc.c
+ *
+ * This is a collection of several routines from gzip-1.0.3
+ * adapted for Linux.
+ *
+ * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ *
+ * Adapted for SHmedia from sh by Stuart Menefy, May 2002
+ */
+
+#include <asm/uaccess.h>
+
+/* cache.c */
+#define CACHE_ENABLE      0
+#define CACHE_DISABLE     1
+int cache_control(unsigned int command);
+
+/*
+ * gzip declarations
+ */
+
+#define OF(args)  args
+#define STATIC static
+
+#undef memset
+#undef memcpy
+#define memzero(s, n)     memset ((s), 0, (n))
+
+typedef unsigned char uch;
+typedef unsigned short ush;
+typedef unsigned long ulg;
+
+#define WSIZE 0x8000		/* Window size must be at least 32k, */
+				/* and a power of two */
+
+static uch *inbuf;		/* input buffer */
+static uch window[WSIZE];	/* Sliding window buffer */
+
+static unsigned insize = 0;	/* valid bytes in inbuf */
+static unsigned inptr = 0;	/* index of next byte to be processed in inbuf */
+static unsigned outcnt = 0;	/* bytes in output buffer */
+
+/* gzip flag byte */
+#define ASCII_FLAG   0x01	/* bit 0 set: file probably ASCII text */
+#define CONTINUATION 0x02	/* bit 1 set: continuation of multi-part gzip file */
+#define EXTRA_FIELD  0x04	/* bit 2 set: extra field present */
+#define ORIG_NAME    0x08	/* bit 3 set: original file name present */
+#define COMMENT      0x10	/* bit 4 set: file comment present */
+#define ENCRYPTED    0x20	/* bit 5 set: file is encrypted */
+#define RESERVED     0xC0	/* bit 6,7:   reserved */
+
+#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  define Assert(cond,msg) {if(!(cond)) error(msg);}
+#  define Trace(x) fprintf x
+#  define Tracev(x) {if (verbose) fprintf x ;}
+#  define Tracevv(x) {if (verbose>1) fprintf x ;}
+#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
+#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+static int fill_inbuf(void);
+static void flush_window(void);
+static void error(char *m);
+static void gzip_mark(void **);
+static void gzip_release(void **);
+
+extern char input_data[];
+extern int input_len;
+
+static long bytes_out = 0;
+static uch *output_data;
+static unsigned long output_ptr = 0;
+
+static void *malloc(int size);
+static void free(void *where);
+static void error(char *m);
+static void gzip_mark(void **);
+static void gzip_release(void **);
+
+static void puts(const char *);
+
+extern int _text;		/* Defined in vmlinux.lds.S */
+extern int _end;
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+
+#define HEAP_SIZE             0x10000
+
+#include "../../../../lib/inflate.c"
+
+static void *malloc(int size)
+{
+	void *p;
+
+	if (size < 0)
+		error("Malloc error\n");
+	if (free_mem_ptr == 0)
+		error("Memory error\n");
+
+	free_mem_ptr = (free_mem_ptr + 3) & ~3;	/* Align */
+
+	p = (void *) free_mem_ptr;
+	free_mem_ptr += size;
+
+	if (free_mem_ptr >= free_mem_end_ptr)
+		error("\nOut of memory\n");
+
+	return p;
+}
+
+static void free(void *where)
+{				/* Don't care */
+}
+
+static void gzip_mark(void **ptr)
+{
+	*ptr = (void *) free_mem_ptr;
+}
+
+static void gzip_release(void **ptr)
+{
+	free_mem_ptr = (long) *ptr;
+}
+
+void puts(const char *s)
+{
+}
+
+void *memset(void *s, int c, size_t n)
+{
+	int i;
+	char *ss = (char *) s;
+
+	for (i = 0; i < n; i++)
+		ss[i] = c;
+	return s;
+}
+
+void *memcpy(void *__dest, __const void *__src, size_t __n)
+{
+	int i;
+	char *d = (char *) __dest, *s = (char *) __src;
+
+	for (i = 0; i < __n; i++)
+		d[i] = s[i];
+	return __dest;
+}
+
+/* ===========================================================================
+ * Fill the input buffer. This is called only when the buffer is empty
+ * and at least one byte is really needed.
+ */
+static int fill_inbuf(void)
+{
+	if (insize != 0) {
+		error("ran out of input data\n");
+	}
+
+	inbuf = input_data;
+	insize = input_len;
+	inptr = 1;
+	return inbuf[0];
+}
+
+/* ===========================================================================
+ * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+ * (Used for the decompressed data only.)
+ */
+static void flush_window(void)
+{
+	ulg c = crc;		/* temporary variable */
+	unsigned n;
+	uch *in, *out, ch;
+
+	in = window;
+	out = &output_data[output_ptr];
+	for (n = 0; n < outcnt; n++) {
+		ch = *out++ = *in++;
+		c = crc_32_tab[((int) c ^ ch) & 0xff] ^ (c >> 8);
+	}
+	crc = c;
+	bytes_out += (ulg) outcnt;
+	output_ptr += (ulg) outcnt;
+	outcnt = 0;
+	puts(".");
+}
+
+static void error(char *x)
+{
+	puts("\n\n");
+	puts(x);
+	puts("\n\n -- System halted");
+
+	while (1) ;		/* Halt */
+}
+
+#define STACK_SIZE (4096)
+long __attribute__ ((aligned(8))) user_stack[STACK_SIZE];
+long *stack_start = &user_stack[STACK_SIZE];
+
+void decompress_kernel(void)
+{
+	output_data = (uch *) (CONFIG_MEMORY_START + 0x2000);
+	free_mem_ptr = (unsigned long) &_end;
+	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
+
+	makecrc();
+	puts("Uncompressing Linux... ");
+	cache_control(CACHE_ENABLE);
+	gunzip();
+	puts("\n");
+
+#if 0
+	/* When booting from ROM may want to do something like this if the
+	 * boot loader doesn't.
+	 */
+
+	/* Set up the parameters and command line */
+	{
+		volatile unsigned int *parambase =
+		    (int *) (CONFIG_MEMORY_START + 0x1000);
+
+		parambase[0] = 0x1;	/* MOUNT_ROOT_RDONLY */
+		parambase[1] = 0x0;	/* RAMDISK_FLAGS */
+		parambase[2] = 0x0200;	/* ORIG_ROOT_DEV */
+		parambase[3] = 0x0;	/* LOADER_TYPE */
+		parambase[4] = 0x0;	/* INITRD_START */
+		parambase[5] = 0x0;	/* INITRD_SIZE */
+		parambase[6] = 0;
+
+		strcpy((char *) ((int) parambase + 0x100),
+		       "console=ttySC0,38400");
+	}
+#endif
+
+	puts("Ok, booting the kernel.\n");
+
+	cache_control(CACHE_DISABLE);
+}
diff --git a/arch/sh/boot/compressed/vmlinux_64.lds b/arch/sh/boot/compressed/vmlinux_64.lds
new file mode 100644
index 000000000000..59c2ef4aeda5
--- /dev/null
+++ b/arch/sh/boot/compressed/vmlinux_64.lds
@@ -0,0 +1,64 @@
+/*
+ * ld script to make compressed SuperH/shmedia Linux kernel+decompression
+ *		bootstrap
+ * Modified by Stuart Menefy from arch/sh/vmlinux.lds.S written by Niibe Yutaka
+ */
+
+
+#ifdef CONFIG_LITTLE_ENDIAN
+/* OUTPUT_FORMAT("elf32-sh64l-linux", "elf32-sh64l-linux", "elf32-sh64l-linux") */
+#define NOP 0x6ff0fff0
+#else
+/* OUTPUT_FORMAT("elf32-sh64", "elf32-sh64", "elf32-sh64") */
+#define NOP 0xf0fff06f
+#endif
+
+OUTPUT_FORMAT("elf32-sh64-linux")
+OUTPUT_ARCH(sh)
+ENTRY(_start)
+
+#define ALIGNED_GAP(section, align) (((ADDR(section)+SIZEOF(section)+(align)-1) & ~((align)-1))-ADDR(section))
+#define FOLLOWING(section, align) AT (LOADADDR(section) + ALIGNED_GAP(section,align))
+
+SECTIONS
+{
+  _text = .;			/* Text and read-only data */
+
+  .text : {
+	*(.text)
+	*(.text64)
+	*(.text..SHmedia32)
+	*(.fixup)
+	*(.gnu.warning)
+	} = NOP
+  . = ALIGN(4);
+  .rodata : { *(.rodata) }
+
+  /* There is no 'real' reason for eight byte alignment, four would work
+   * as well, but gdb downloads much (*4) faster with this.
+   */
+  . = ALIGN(8);
+  .image : { *(.image) }
+  . = ALIGN(4);
+  _etext = .;			/* End of text section */
+
+  .data :			/* Data */
+	FOLLOWING(.image, 4)
+	{
+	_data = .;
+	*(.data)
+	}
+  _data_image = LOADADDR(.data);/* Address of data section in ROM */
+
+  _edata = .;			/* End of data section */
+
+  .stack : { stack = .;  _stack = .; }
+
+  . = ALIGN(4);
+  __bss_start = .;		/* BSS */
+  .bss : {
+	*(.bss)
+	}
+  . = ALIGN(4);
+  _end = . ;
+}
diff --git a/arch/sh64/boot/Makefile b/arch/sh64/boot/Makefile
deleted file mode 100644
index fb71087b7b8a..000000000000
--- a/arch/sh64/boot/Makefile
+++ /dev/null
@@ -1,20 +0,0 @@
-#
-# arch/sh64/boot/Makefile
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2002 Stuart Menefy
-#
-
-targets := zImage
-subdir- := compressed
-
-$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
-	$(call if_changed,objcopy)
-	@echo 'Kernel: $@ is ready'
-
-$(obj)/compressed/vmlinux: FORCE
-	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
-
diff --git a/arch/sh64/boot/compressed/Makefile b/arch/sh64/boot/compressed/Makefile
deleted file mode 100644
index 9cd216718856..000000000000
--- a/arch/sh64/boot/compressed/Makefile
+++ /dev/null
@@ -1,46 +0,0 @@
-#
-# linux/arch/sh64/boot/compressed/Makefile
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2002 Stuart Menefy
-# Copyright (C) 2004 Paul Mundt
-#
-# create a compressed vmlinux image from the original vmlinux
-#
-
-targets		:= vmlinux vmlinux.bin vmlinux.bin.gz \
-		   head.o misc.o cache.o piggy.o vmlinux.lds
-
-EXTRA_AFLAGS	:= -traditional
-
-OBJECTS		:= $(obj)/head.o $(obj)/misc.o $(obj)/cache.o
-
-#
-# ZIMAGE_OFFSET is the load offset of the compression loader
-# (4M for the kernel plus 64K for this loader)
-#
-ZIMAGE_OFFSET = $(shell printf "0x%8x" $$[$(CONFIG_MEMORY_START)+0x400000+0x10000])
-
-LDFLAGS_vmlinux := -Ttext $(ZIMAGE_OFFSET) -e startup \
-		    -T $(obj)/../../kernel/vmlinux.lds \
-		    --no-warn-mismatch
-
-$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE
-	$(call if_changed,ld)
-	@:
-
-$(obj)/vmlinux.bin: vmlinux FORCE
-	$(call if_changed,objcopy)
-
-$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
-	$(call if_changed,gzip)
-
-LDFLAGS_piggy.o := -r --format binary --oformat elf32-sh64-linux -T
-OBJCOPYFLAGS += -R .empty_zero_page
-
-$(obj)/piggy.o: $(obj)/vmlinux.lds $(obj)/vmlinux.bin.gz FORCE
-	$(call if_changed,ld)
-
diff --git a/arch/sh64/boot/compressed/cache.c b/arch/sh64/boot/compressed/cache.c
deleted file mode 100644
index 708707355ffa..000000000000
--- a/arch/sh64/boot/compressed/cache.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * arch/shmedia/boot/compressed/cache.c -- simple cache management functions
- *
- * Code extracted from sh-ipl+g, sh-stub.c, which has the copyright:
- *
- *   This is originally based on an m68k software stub written by Glenn
- *   Engel at HP, but has changed quite a bit.
- *
- *   Modifications for the SH by Ben Lee and Steve Chamberlain
- *
-****************************************************************************
-
-		THIS SOFTWARE IS NOT COPYRIGHTED
-
-   HP offers the following for use in the public domain.  HP makes no
-   warranty with regard to the software or it's performance and the
-   user accepts the software "AS IS" with all faults.
-
-   HP DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD
-   TO THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES
-   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-
-****************************************************************************/
-
-#define CACHE_ENABLE      0
-#define CACHE_DISABLE     1
-
-int cache_control(unsigned int command)
-{
-	volatile unsigned int *p = (volatile unsigned int *) 0x80000000;
-	int i;
-
-	for (i = 0; i < (32 * 1024); i += 32) {
-		(void *) *p;
-		p += (32 / sizeof (int));
-	}
-
-	return 0;
-}
diff --git a/arch/sh64/boot/compressed/head.S b/arch/sh64/boot/compressed/head.S
deleted file mode 100644
index 82040b1a29cf..000000000000
--- a/arch/sh64/boot/compressed/head.S
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/shmedia/boot/compressed/head.S
- *
- * Copied from
- *   arch/shmedia/kernel/head.S
- * which carried the copyright:
- *   Copyright (C) 2000, 2001  Paolo Alberelli
- *
- * Modification for compressed loader:
- *   Copyright (C) 2002 Stuart Menefy (stuart.menefy@st.com)
- */
-
-#include <linux/linkage.h>
-#include <asm/registers.h>
-#include <asm/cache.h>
-#include <asm/mmu_context.h>
-
-/*
- * Fixed TLB entries to identity map the beginning of RAM
- */
-#define MMUIR_TEXT_H	0x0000000000000003 | CONFIG_MEMORY_START
-			/* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
-#define MMUIR_TEXT_L	0x000000000000009a | CONFIG_MEMORY_START
-			/* 512 Mb, Cacheable (Write-back), execute, Not User, Ph. Add. */
-
-#define MMUDR_CACHED_H	0x0000000000000003 | CONFIG_MEMORY_START
-			/* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
-#define MMUDR_CACHED_L	0x000000000000015a | CONFIG_MEMORY_START
-			/* 512 Mb, Cacheable (Write-back), read/write, Not User, Ph. Add. */
-
-#define	ICCR0_INIT_VAL	ICCR0_ON | ICCR0_ICI		/* ICE + ICI */
-#define	ICCR1_INIT_VAL	ICCR1_NOLOCK			/* No locking */
-
-#if 1
-#define	OCCR0_INIT_VAL	OCCR0_ON | OCCR0_OCI | OCCR0_WB	/* OCE + OCI + WB */
-#else
-#define	OCCR0_INIT_VAL	OCCR0_OFF
-#endif
-#define	OCCR1_INIT_VAL	OCCR1_NOLOCK			/* No locking */
-
-	.text
-
-	.global	startup
-startup:
-	/*
-	 * Prevent speculative fetch on device memory due to
-	 * uninitialized target registers.
-	 * This must be executed before the first branch.
-	 */
-	ptabs/u	ZERO, tr0
-	ptabs/u	ZERO, tr1
-	ptabs/u	ZERO, tr2
-	ptabs/u	ZERO, tr3
-	ptabs/u	ZERO, tr4
-	ptabs/u	ZERO, tr5
-	ptabs/u	ZERO, tr6
-	ptabs/u	ZERO, tr7
-	synci
-
-	/*
-	 * Set initial TLB entries for cached and uncached regions.
-	 * Note: PTA/BLINK is PIC code, PTABS/BLINK isn't !
-	 */
-	/* Clear ITLBs */
-	pta	1f, tr1
-	movi	ITLB_FIXED, r21
-	movi	ITLB_LAST_VAR_UNRESTRICTED+TLB_STEP, r22
-1:	putcfg	r21, 0, ZERO		/* Clear MMUIR[n].PTEH.V */
-	addi	r21, TLB_STEP, r21
-        bne	r21, r22, tr1
-
-	/* Clear DTLBs */
-	pta	1f, tr1
-	movi	DTLB_FIXED, r21
-	movi	DTLB_LAST_VAR_UNRESTRICTED+TLB_STEP, r22
-1:	putcfg	r21, 0, ZERO		/* Clear MMUDR[n].PTEH.V */
-	addi	r21, TLB_STEP, r21
-        bne	r21, r22, tr1
-
-	/* Map one big (512Mb) page for ITLB */
-	movi	ITLB_FIXED, r21
-	movi	MMUIR_TEXT_L, r22	/* PTEL first */
-	putcfg	r21, 1, r22		/* Set MMUIR[0].PTEL */
-	movi	MMUIR_TEXT_H, r22	/* PTEH last */
-	putcfg	r21, 0, r22		/* Set MMUIR[0].PTEH */
-
-	/* Map one big CACHED (512Mb) page for DTLB */
-	movi	DTLB_FIXED, r21
-	movi	MMUDR_CACHED_L, r22	/* PTEL first */
-	putcfg	r21, 1, r22		/* Set MMUDR[0].PTEL */
-	movi	MMUDR_CACHED_H, r22	/* PTEH last */
-	putcfg	r21, 0, r22		/* Set MMUDR[0].PTEH */
-
-	/* ICache */
-	movi	ICCR_BASE, r21
-	movi	ICCR0_INIT_VAL, r22
-	movi	ICCR1_INIT_VAL, r23
-	putcfg	r21, ICCR_REG0, r22
-	putcfg	r21, ICCR_REG1, r23
-	synci
-
-	/* OCache */
-	movi	OCCR_BASE, r21
-	movi	OCCR0_INIT_VAL, r22
-	movi	OCCR1_INIT_VAL, r23
-	putcfg	r21, OCCR_REG0, r22
-	putcfg	r21, OCCR_REG1, r23
-	synco
-
-	/*
-	 * Enable the MMU.
-	 * From here-on code can be non-PIC.
-	 */
-	movi	SR_HARMLESS | SR_ENABLE_MMU, r22
-	putcon	r22, SSR
-	movi	1f, r22
-	putcon	r22, SPC
-	synco
-	rte				/* And now go into the hyperspace ... */
-1:					/* ... that's the next instruction ! */
-
-	/* Set initial stack pointer */
-	movi	datalabel stack_start, r0
-	ld.l	r0, 0, r15
-
-	/*
-	 * Clear bss
-	 */
-	pt	1f, tr1
-	movi	datalabel __bss_start, r22
-	movi	datalabel _end, r23
-1:	st.l	r22, 0, ZERO
-	addi	r22, 4, r22
-	bne	r22, r23, tr1
-
-	/*
-	 * Decompress the kernel.
-	 */
-	pt	decompress_kernel, tr0
-	blink	tr0, r18
-
-	/*
-	 * Disable the MMU.
-	 */
-	movi	SR_HARMLESS, r22
-	putcon	r22, SSR
-	movi	1f, r22
-	putcon	r22, SPC
-	synco
-	rte				/* And now go into the hyperspace ... */
-1:					/* ... that's the next instruction ! */
-
-	/* Jump into the decompressed kernel */
-	movi	datalabel (CONFIG_MEMORY_START + 0x2000)+1, r19
-	ptabs	r19, tr0
-	blink	tr0, r18
-
-	/* Shouldn't return here, but just in case, loop forever */
-	pt	1f, tr0
-1:	blink	tr0, ZERO
diff --git a/arch/sh64/boot/compressed/install.sh b/arch/sh64/boot/compressed/install.sh
deleted file mode 100644
index 90589f0fec12..000000000000
--- a/arch/sh64/boot/compressed/install.sh
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/bin/sh
-#
-# arch/sh/boot/install.sh
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 1995 by Linus Torvalds
-#
-# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
-# Adapted from code in arch/i386/boot/install.sh by Russell King
-# Adapted from code in arch/arm/boot/install.sh by Stuart Menefy
-#
-# "make install" script for sh architecture
-#
-# Arguments:
-#   $1 - kernel version
-#   $2 - kernel image file
-#   $3 - kernel map file
-#   $4 - default install path (blank if root directory)
-#
-
-# User may have a custom install script
-
-if [ -x /sbin/installkernel ]; then
-  exec /sbin/installkernel "$@"
-fi
-
-if [ "$2" = "zImage" ]; then
-# Compressed install
-  echo "Installing compressed kernel"
-  if [ -f $4/vmlinuz-$1 ]; then
-    mv $4/vmlinuz-$1 $4/vmlinuz.old
-  fi
-
-  if [ -f $4/System.map-$1 ]; then
-    mv $4/System.map-$1 $4/System.old
-  fi
-
-  cat $2 > $4/vmlinuz-$1
-  cp $3 $4/System.map-$1
-else
-# Normal install
-  echo "Installing normal kernel"
-  if [ -f $4/vmlinux-$1 ]; then
-    mv $4/vmlinux-$1 $4/vmlinux.old
-  fi
-
-  if [ -f $4/System.map ]; then
-    mv $4/System.map $4/System.old
-  fi
-
-  cat $2 > $4/vmlinux-$1
-  cp $3 $4/System.map
-fi
diff --git a/arch/sh64/boot/compressed/misc.c b/arch/sh64/boot/compressed/misc.c
deleted file mode 100644
index aea00c53ce29..000000000000
--- a/arch/sh64/boot/compressed/misc.c
+++ /dev/null
@@ -1,250 +0,0 @@
-/*
- * arch/sh64/boot/compressed/misc.c
- *
- * This is a collection of several routines from gzip-1.0.3
- * adapted for Linux.
- *
- * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
- *
- * Adapted for SHmedia from sh by Stuart Menefy, May 2002
- */
-
-#include <asm/uaccess.h>
-
-/* cache.c */
-#define CACHE_ENABLE      0
-#define CACHE_DISABLE     1
-int cache_control(unsigned int command);
-
-/*
- * gzip declarations
- */
-
-#define OF(args)  args
-#define STATIC static
-
-#undef memset
-#undef memcpy
-#define memzero(s, n)     memset ((s), 0, (n))
-
-typedef unsigned char uch;
-typedef unsigned short ush;
-typedef unsigned long ulg;
-
-#define WSIZE 0x8000		/* Window size must be at least 32k, */
-				/* and a power of two */
-
-static uch *inbuf;		/* input buffer */
-static uch window[WSIZE];	/* Sliding window buffer */
-
-static unsigned insize = 0;	/* valid bytes in inbuf */
-static unsigned inptr = 0;	/* index of next byte to be processed in inbuf */
-static unsigned outcnt = 0;	/* bytes in output buffer */
-
-/* gzip flag byte */
-#define ASCII_FLAG   0x01	/* bit 0 set: file probably ASCII text */
-#define CONTINUATION 0x02	/* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD  0x04	/* bit 2 set: extra field present */
-#define ORIG_NAME    0x08	/* bit 3 set: original file name present */
-#define COMMENT      0x10	/* bit 4 set: file comment present */
-#define ENCRYPTED    0x20	/* bit 5 set: file is encrypted */
-#define RESERVED     0xC0	/* bit 6,7:   reserved */
-
-#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
-
-/* Diagnostic functions */
-#ifdef DEBUG
-#  define Assert(cond,msg) {if(!(cond)) error(msg);}
-#  define Trace(x) fprintf x
-#  define Tracev(x) {if (verbose) fprintf x ;}
-#  define Tracevv(x) {if (verbose>1) fprintf x ;}
-#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
-#else
-#  define Assert(cond,msg)
-#  define Trace(x)
-#  define Tracev(x)
-#  define Tracevv(x)
-#  define Tracec(c,x)
-#  define Tracecv(c,x)
-#endif
-
-static int fill_inbuf(void);
-static void flush_window(void);
-static void error(char *m);
-static void gzip_mark(void **);
-static void gzip_release(void **);
-
-extern char input_data[];
-extern int input_len;
-
-static long bytes_out = 0;
-static uch *output_data;
-static unsigned long output_ptr = 0;
-
-static void *malloc(int size);
-static void free(void *where);
-static void error(char *m);
-static void gzip_mark(void **);
-static void gzip_release(void **);
-
-static void puts(const char *);
-
-extern int _text;		/* Defined in vmlinux.lds.S */
-extern int _end;
-static unsigned long free_mem_ptr;
-static unsigned long free_mem_end_ptr;
-
-#define HEAP_SIZE             0x10000
-
-#include "../../../../lib/inflate.c"
-
-static void *malloc(int size)
-{
-	void *p;
-
-	if (size < 0)
-		error("Malloc error\n");
-	if (free_mem_ptr == 0)
-		error("Memory error\n");
-
-	free_mem_ptr = (free_mem_ptr + 3) & ~3;	/* Align */
-
-	p = (void *) free_mem_ptr;
-	free_mem_ptr += size;
-
-	if (free_mem_ptr >= free_mem_end_ptr)
-		error("\nOut of memory\n");
-
-	return p;
-}
-
-static void free(void *where)
-{				/* Don't care */
-}
-
-static void gzip_mark(void **ptr)
-{
-	*ptr = (void *) free_mem_ptr;
-}
-
-static void gzip_release(void **ptr)
-{
-	free_mem_ptr = (long) *ptr;
-}
-
-void puts(const char *s)
-{
-}
-
-void *memset(void *s, int c, size_t n)
-{
-	int i;
-	char *ss = (char *) s;
-
-	for (i = 0; i < n; i++)
-		ss[i] = c;
-	return s;
-}
-
-void *memcpy(void *__dest, __const void *__src, size_t __n)
-{
-	int i;
-	char *d = (char *) __dest, *s = (char *) __src;
-
-	for (i = 0; i < __n; i++)
-		d[i] = s[i];
-	return __dest;
-}
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty
- * and at least one byte is really needed.
- */
-static int fill_inbuf(void)
-{
-	if (insize != 0) {
-		error("ran out of input data\n");
-	}
-
-	inbuf = input_data;
-	insize = input_len;
-	inptr = 1;
-	return inbuf[0];
-}
-
-/* ===========================================================================
- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
- * (Used for the decompressed data only.)
- */
-static void flush_window(void)
-{
-	ulg c = crc;		/* temporary variable */
-	unsigned n;
-	uch *in, *out, ch;
-
-	in = window;
-	out = &output_data[output_ptr];
-	for (n = 0; n < outcnt; n++) {
-		ch = *out++ = *in++;
-		c = crc_32_tab[((int) c ^ ch) & 0xff] ^ (c >> 8);
-	}
-	crc = c;
-	bytes_out += (ulg) outcnt;
-	output_ptr += (ulg) outcnt;
-	outcnt = 0;
-	puts(".");
-}
-
-static void error(char *x)
-{
-	puts("\n\n");
-	puts(x);
-	puts("\n\n -- System halted");
-
-	while (1) ;		/* Halt */
-}
-
-#define STACK_SIZE (4096)
-long __attribute__ ((aligned(8))) user_stack[STACK_SIZE];
-long *stack_start = &user_stack[STACK_SIZE];
-
-void decompress_kernel(void)
-{
-	output_data = (uch *) (CONFIG_MEMORY_START + 0x2000);
-	free_mem_ptr = (unsigned long) &_end;
-	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
-
-	makecrc();
-	puts("Uncompressing Linux... ");
-	cache_control(CACHE_ENABLE);
-	gunzip();
-	puts("\n");
-
-#if 0
-	/* When booting from ROM may want to do something like this if the
-	 * boot loader doesn't.
-	 */
-
-	/* Set up the parameters and command line */
-	{
-		volatile unsigned int *parambase =
-		    (int *) (CONFIG_MEMORY_START + 0x1000);
-
-		parambase[0] = 0x1;	/* MOUNT_ROOT_RDONLY */
-		parambase[1] = 0x0;	/* RAMDISK_FLAGS */
-		parambase[2] = 0x0200;	/* ORIG_ROOT_DEV */
-		parambase[3] = 0x0;	/* LOADER_TYPE */
-		parambase[4] = 0x0;	/* INITRD_START */
-		parambase[5] = 0x0;	/* INITRD_SIZE */
-		parambase[6] = 0;
-
-		strcpy((char *) ((int) parambase + 0x100),
-		       "console=ttySC0,38400");
-	}
-#endif
-
-	puts("Ok, booting the kernel.\n");
-
-	cache_control(CACHE_DISABLE);
-}
diff --git a/arch/sh64/boot/compressed/vmlinux.lds.S b/arch/sh64/boot/compressed/vmlinux.lds.S
deleted file mode 100644
index 59c2ef4aeda5..000000000000
--- a/arch/sh64/boot/compressed/vmlinux.lds.S
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * ld script to make compressed SuperH/shmedia Linux kernel+decompression
- *		bootstrap
- * Modified by Stuart Menefy from arch/sh/vmlinux.lds.S written by Niibe Yutaka
- */
-
-
-#ifdef CONFIG_LITTLE_ENDIAN
-/* OUTPUT_FORMAT("elf32-sh64l-linux", "elf32-sh64l-linux", "elf32-sh64l-linux") */
-#define NOP 0x6ff0fff0
-#else
-/* OUTPUT_FORMAT("elf32-sh64", "elf32-sh64", "elf32-sh64") */
-#define NOP 0xf0fff06f
-#endif
-
-OUTPUT_FORMAT("elf32-sh64-linux")
-OUTPUT_ARCH(sh)
-ENTRY(_start)
-
-#define ALIGNED_GAP(section, align) (((ADDR(section)+SIZEOF(section)+(align)-1) & ~((align)-1))-ADDR(section))
-#define FOLLOWING(section, align) AT (LOADADDR(section) + ALIGNED_GAP(section,align))
-
-SECTIONS
-{
-  _text = .;			/* Text and read-only data */
-
-  .text : {
-	*(.text)
-	*(.text64)
-	*(.text..SHmedia32)
-	*(.fixup)
-	*(.gnu.warning)
-	} = NOP
-  . = ALIGN(4);
-  .rodata : { *(.rodata) }
-
-  /* There is no 'real' reason for eight byte alignment, four would work
-   * as well, but gdb downloads much (*4) faster with this.
-   */
-  . = ALIGN(8);
-  .image : { *(.image) }
-  . = ALIGN(4);
-  _etext = .;			/* End of text section */
-
-  .data :			/* Data */
-	FOLLOWING(.image, 4)
-	{
-	_data = .;
-	*(.data)
-	}
-  _data_image = LOADADDR(.data);/* Address of data section in ROM */
-
-  _edata = .;			/* End of data section */
-
-  .stack : { stack = .;  _stack = .; }
-
-  . = ALIGN(4);
-  __bss_start = .;		/* BSS */
-  .bss : {
-	*(.bss)
-	}
-  . = ALIGN(4);
-  _end = . ;
-}
-- 
cgit v1.2.3-59-g8ed1b


From ddf7f1d339861b9867342edccc9c6b864ca9dd26 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 16:55:27 +0900
Subject: sh: Kill off a stray proc tlb reference in fault_64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/fault_64.c | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/mm/fault_64.c b/arch/sh/mm/fault_64.c
index 1469aa70bc78..399d53710d2f 100644
--- a/arch/sh/mm/fault_64.c
+++ b/arch/sh/mm/fault_64.c
@@ -242,10 +242,6 @@ asmlinkage int do_fast_page_fault(unsigned long long ssr_md,
 	protection_flags = expevt_lookup_table.protection_flags[index];
 	textaccess       = expevt_lookup_table.is_text_access[index];
 
-#ifdef CONFIG_SH64_PROC_TLB
-	++calls_to_do_fast_page_fault;
-#endif
-
 	/* SIM
 	 * Note this is now called with interrupts still disabled
 	 * This is to cope with being called for a missing IO port
-- 
cgit v1.2.3-59-g8ed1b


From 8214d52ace79163ded60a8605c1d6c44b8b2bd30 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 16:58:56 +0900
Subject: sh: Merge sh64 Kconfig.debug options.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig.debug   | 25 +++++++++++++++++++++++++
 arch/sh64/Kconfig.debug | 33 ---------------------------------
 2 files changed, 25 insertions(+), 33 deletions(-)
 delete mode 100644 arch/sh64/Kconfig.debug

(limited to 'arch')

diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 722da6851f56..f9ce46f1e6ff 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -174,4 +174,29 @@ endchoice
 
 endmenu
 
+if SUPERH64
+
+config SH64_PROC_ASIDS
+	bool "Debug: report ASIDs through /proc/asids"
+	depends on PROC_FS
+
+config SH64_SR_WATCH
+	bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
+
+config POOR_MANS_STRACE
+	bool "Debug: enable rudimentary strace facility"
+	help
+	  This option allows system calls to be traced to the console.  It also
+	  aids in detecting kernel stack underflow.  It is useful for debugging
+	  early-userland problems (e.g. init incurring fatal exceptions.)
+
+config SH_ALPHANUMERIC
+	bool "Enable debug outputs to on-board alphanumeric display"
+	depends on SH_CAYMAN
+
+config SH_NO_BSS_INIT
+	bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"
+
+endif
+
 endmenu
diff --git a/arch/sh64/Kconfig.debug b/arch/sh64/Kconfig.debug
deleted file mode 100644
index 05c07c4e4ed6..000000000000
--- a/arch/sh64/Kconfig.debug
+++ /dev/null
@@ -1,33 +0,0 @@
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
-
-config EARLY_PRINTK
-	bool "Early SCIF console support"
-
-config SH64_PROC_TLB
-	bool "Debug: report TLB fill/purge activity through /proc/tlb"
-	depends on PROC_FS
-
-config SH64_PROC_ASIDS
-	bool "Debug: report ASIDs through /proc/asids"
-	depends on PROC_FS
-
-config SH64_SR_WATCH
-	bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
-
-config POOR_MANS_STRACE
-	bool "Debug: enable rudimentary strace facility"
-	help
-	  This option allows system calls to be traced to the console.  It also
-	  aids in detecting kernel stack underflow.  It is useful for debugging
-	  early-userland problems (e.g. init incurring fatal exceptions.)
-
-config SH_ALPHANUMERIC
-	bool "Enable debug outputs to on-board alphanumeric display"
-	depends on SH_CAYMAN
-
-config SH_NO_BSS_INIT
-	bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"
-
-endmenu
-- 
cgit v1.2.3-59-g8ed1b


From 60b2249d45d44bd3494d55f5ea4bccd25c7f8281 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 17:07:06 +0900
Subject: sh: Move over SH-5 TLB and cache support code.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/Makefile_64 |    7 +-
 arch/sh/mm/cache-sh5.c | 1032 ++++++++++++++++++++++++++++++++++++++++++++++++
 arch/sh/mm/tlb-sh5.c   |  166 ++++++++
 arch/sh64/mm/cache.c   | 1032 ------------------------------------------------
 arch/sh64/mm/tlb.c     |  166 --------
 5 files changed, 1203 insertions(+), 1200 deletions(-)
 create mode 100644 arch/sh/mm/cache-sh5.c
 create mode 100644 arch/sh/mm/tlb-sh5.c
 delete mode 100644 arch/sh64/mm/cache.c
 delete mode 100644 arch/sh64/mm/tlb.c

(limited to 'arch')

diff --git a/arch/sh/mm/Makefile_64 b/arch/sh/mm/Makefile_64
index 82fe9072fd5c..5ff83583593e 100644
--- a/arch/sh/mm/Makefile_64
+++ b/arch/sh/mm/Makefile_64
@@ -5,12 +5,15 @@
 obj-y			:= init.o extable_64.o consistent.o
 
 mmu-y			:= tlb-nommu.o pg-nommu.o
-mmu-$(CONFIG_MMU)	:= fault_64.o ioremap_64.o tlb-flush_64.o
+mmu-$(CONFIG_MMU)	:= fault_64.o ioremap_64.o tlb-flush_64.o tlb-sh5.o
+
+ifndef CONFIG_CACHE_OFF
+obj-y			+= cache-sh5.o
+endif
 
 obj-y			+= $(mmu-y)
 
 obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o
-obj-$(CONFIG_PMB)		+= pmb.o
 obj-$(CONFIG_NUMA)		+= numa.o
 
 EXTRA_CFLAGS += -Werror
diff --git a/arch/sh/mm/cache-sh5.c b/arch/sh/mm/cache-sh5.c
new file mode 100644
index 000000000000..421487cfff4c
--- /dev/null
+++ b/arch/sh/mm/cache-sh5.c
@@ -0,0 +1,1032 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/mm/cache.c
+ *
+ * Original version Copyright (C) 2000, 2001  Paolo Alberelli
+ * Second version Copyright (C) benedict.gaster@superh.com 2002
+ * Third version Copyright Richard.Curnow@superh.com 2003
+ * Hacks to third version Copyright (C) 2003 Paul Mundt
+ */
+
+/****************************************************************************/
+
+#include <linux/init.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/threads.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/processor.h>
+#include <asm/cache.h>
+#include <asm/tlb.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <asm/mmu_context.h>
+#include <asm/pgalloc.h> /* for flush_itlb_range */
+
+#include <linux/proc_fs.h>
+
+/* This function is in entry.S */
+extern unsigned long switch_and_save_asid(unsigned long new_asid);
+
+/* Wired TLB entry for the D-cache */
+static unsigned long long dtlb_cache_slot;
+
+/**
+ * sh64_cache_init()
+ *
+ * This is pretty much just a straightforward clone of the SH
+ * detect_cpu_and_cache_system().
+ *
+ * This function is responsible for setting up all of the cache
+ * info dynamically as well as taking care of CPU probing and
+ * setting up the relevant subtype data.
+ *
+ * FIXME: For the time being, we only really support the SH5-101
+ * out of the box, and don't support dynamic probing for things
+ * like the SH5-103 or even cut2 of the SH5-101. Implement this
+ * later!
+ */
+int __init sh64_cache_init(void)
+{
+	/*
+	 * First, setup some sane values for the I-cache.
+	 */
+	cpu_data->icache.ways		= 4;
+	cpu_data->icache.sets		= 256;
+	cpu_data->icache.linesz		= L1_CACHE_BYTES;
+
+	/*
+	 * FIXME: This can probably be cleaned up a bit as well.. for example,
+	 * do we really need the way shift _and_ the way_step_shift ?? Judging
+	 * by the existing code, I would guess no.. is there any valid reason
+	 * why we need to be tracking this around?
+	 */
+	cpu_data->icache.way_shift	= 13;
+	cpu_data->icache.entry_shift	= 5;
+	cpu_data->icache.set_shift	= 4;
+	cpu_data->icache.way_step_shift	= 16;
+	cpu_data->icache.asid_shift	= 2;
+
+	/*
+	 * way offset = cache size / associativity, so just don't factor in
+	 * associativity in the first place..
+	 */
+	cpu_data->icache.way_ofs	= cpu_data->icache.sets *
+					  cpu_data->icache.linesz;
+
+	cpu_data->icache.asid_mask	= 0x3fc;
+	cpu_data->icache.idx_mask	= 0x1fe0;
+	cpu_data->icache.epn_mask	= 0xffffe000;
+	cpu_data->icache.flags		= 0;
+
+	/*
+	 * Next, setup some sane values for the D-cache.
+	 *
+	 * On the SH5, these are pretty consistent with the I-cache settings,
+	 * so we just copy over the existing definitions.. these can be fixed
+	 * up later, especially if we add runtime CPU probing.
+	 *
+	 * Though in the meantime it saves us from having to duplicate all of
+	 * the above definitions..
+	 */
+	cpu_data->dcache		= cpu_data->icache;
+
+	/*
+	 * Setup any cache-related flags here
+	 */
+#if defined(CONFIG_DCACHE_WRITE_THROUGH)
+	set_bit(SH_CACHE_MODE_WT, &(cpu_data->dcache.flags));
+#elif defined(CONFIG_DCACHE_WRITE_BACK)
+	set_bit(SH_CACHE_MODE_WB, &(cpu_data->dcache.flags));
+#endif
+
+	/*
+	 * We also need to reserve a slot for the D-cache in the DTLB, so we
+	 * do this now ..
+	 */
+	dtlb_cache_slot			= sh64_get_wired_dtlb_entry();
+
+	return 0;
+}
+
+#ifdef CONFIG_DCACHE_DISABLED
+#define sh64_dcache_purge_all()					do { } while (0)
+#define sh64_dcache_purge_coloured_phy_page(paddr, eaddr)	do { } while (0)
+#define sh64_dcache_purge_user_range(mm, start, end)		do { } while (0)
+#define sh64_dcache_purge_phy_page(paddr)			do { } while (0)
+#define sh64_dcache_purge_virt_page(mm, eaddr)			do { } while (0)
+#define sh64_dcache_purge_kernel_range(start, end)		do { } while (0)
+#define sh64_dcache_wback_current_user_range(start, end)	do { } while (0)
+#endif
+
+/*##########################################################################*/
+
+/* From here onwards, a rewrite of the implementation,
+   by Richard.Curnow@superh.com.
+
+   The major changes in this compared to the old version are;
+   1. use more selective purging through OCBP instead of using ALLOCO to purge
+      by natural replacement.  This avoids purging out unrelated cache lines
+      that happen to be in the same set.
+   2. exploit the APIs copy_user_page and clear_user_page better
+   3. be more selective about I-cache purging, in particular use invalidate_all
+      more sparingly.
+
+   */
+
+/*##########################################################################
+			       SUPPORT FUNCTIONS
+  ##########################################################################*/
+
+/****************************************************************************/
+/* The following group of functions deal with mapping and unmapping a temporary
+   page into the DTLB slot that have been set aside for our exclusive use. */
+/* In order to accomplish this, we use the generic interface for adding and
+   removing a wired slot entry as defined in arch/sh64/mm/tlb.c */
+/****************************************************************************/
+
+static unsigned long slot_own_flags;
+
+static inline void sh64_setup_dtlb_cache_slot(unsigned long eaddr, unsigned long asid, unsigned long paddr)
+{
+	local_irq_save(slot_own_flags);
+	sh64_setup_tlb_slot(dtlb_cache_slot, eaddr, asid, paddr);
+}
+
+static inline void sh64_teardown_dtlb_cache_slot(void)
+{
+	sh64_teardown_tlb_slot(dtlb_cache_slot);
+	local_irq_restore(slot_own_flags);
+}
+
+/****************************************************************************/
+
+#ifndef CONFIG_ICACHE_DISABLED
+
+static void __inline__ sh64_icache_inv_all(void)
+{
+	unsigned long long addr, flag, data;
+	unsigned int flags;
+
+	addr=ICCR0;
+	flag=ICCR0_ICI;
+	data=0;
+
+	/* Make this a critical section for safety (probably not strictly necessary.) */
+	local_irq_save(flags);
+
+	/* Without %1 it gets unexplicably wrong */
+	asm volatile("getcfg	%3, 0, %0\n\t"
+			"or	%0, %2, %0\n\t"
+			"putcfg	%3, 0, %0\n\t"
+			"synci"
+			: "=&r" (data)
+			: "0" (data), "r" (flag), "r" (addr));
+
+	local_irq_restore(flags);
+}
+
+static void sh64_icache_inv_kernel_range(unsigned long start, unsigned long end)
+{
+	/* Invalidate range of addresses [start,end] from the I-cache, where
+	 * the addresses lie in the kernel superpage. */
+
+	unsigned long long ullend, addr, aligned_start;
+#if (NEFF == 32)
+	aligned_start = (unsigned long long)(signed long long)(signed long) start;
+#else
+#error "NEFF != 32"
+#endif
+	aligned_start &= L1_CACHE_ALIGN_MASK;
+	addr = aligned_start;
+#if (NEFF == 32)
+	ullend = (unsigned long long) (signed long long) (signed long) end;
+#else
+#error "NEFF != 32"
+#endif
+	while (addr <= ullend) {
+		asm __volatile__ ("icbi %0, 0" : : "r" (addr));
+		addr += L1_CACHE_BYTES;
+	}
+}
+
+static void sh64_icache_inv_user_page(struct vm_area_struct *vma, unsigned long eaddr)
+{
+	/* If we get called, we know that vma->vm_flags contains VM_EXEC.
+	   Also, eaddr is page-aligned. */
+
+	unsigned long long addr, end_addr;
+	unsigned long flags = 0;
+	unsigned long running_asid, vma_asid;
+	addr = eaddr;
+	end_addr = addr + PAGE_SIZE;
+
+	/* Check whether we can use the current ASID for the I-cache
+	   invalidation.  For example, if we're called via
+	   access_process_vm->flush_cache_page->here, (e.g. when reading from
+	   /proc), 'running_asid' will be that of the reader, not of the
+	   victim.
+
+	   Also, note the risk that we might get pre-empted between the ASID
+	   compare and blocking IRQs, and before we regain control, the
+	   pid->ASID mapping changes.  However, the whole cache will get
+	   invalidated when the mapping is renewed, so the worst that can
+	   happen is that the loop below ends up invalidating somebody else's
+	   cache entries.
+	*/
+
+	running_asid = get_asid();
+	vma_asid = (vma->vm_mm->context & MMU_CONTEXT_ASID_MASK);
+	if (running_asid != vma_asid) {
+		local_irq_save(flags);
+		switch_and_save_asid(vma_asid);
+	}
+	while (addr < end_addr) {
+		/* Worth unrolling a little */
+		asm __volatile__("icbi %0,  0" : : "r" (addr));
+		asm __volatile__("icbi %0, 32" : : "r" (addr));
+		asm __volatile__("icbi %0, 64" : : "r" (addr));
+		asm __volatile__("icbi %0, 96" : : "r" (addr));
+		addr += 128;
+	}
+	if (running_asid != vma_asid) {
+		switch_and_save_asid(running_asid);
+		local_irq_restore(flags);
+	}
+}
+
+/****************************************************************************/
+
+static void sh64_icache_inv_user_page_range(struct mm_struct *mm,
+			  unsigned long start, unsigned long end)
+{
+	/* Used for invalidating big chunks of I-cache, i.e. assume the range
+	   is whole pages.  If 'start' or 'end' is not page aligned, the code
+	   is conservative and invalidates to the ends of the enclosing pages.
+	   This is functionally OK, just a performance loss. */
+
+	/* See the comments below in sh64_dcache_purge_user_range() regarding
+	   the choice of algorithm.  However, for the I-cache option (2) isn't
+	   available because there are no physical tags so aliases can't be
+	   resolved.  The icbi instruction has to be used through the user
+	   mapping.   Because icbi is cheaper than ocbp on a cache hit, it
+	   would be cheaper to use the selective code for a large range than is
+	   possible with the D-cache.  Just assume 64 for now as a working
+	   figure.
+	   */
+
+	int n_pages;
+
+	if (!mm) return;
+
+	n_pages = ((end - start) >> PAGE_SHIFT);
+	if (n_pages >= 64) {
+		sh64_icache_inv_all();
+	} else {
+		unsigned long aligned_start;
+		unsigned long eaddr;
+		unsigned long after_last_page_start;
+		unsigned long mm_asid, current_asid;
+		unsigned long long flags = 0ULL;
+
+		mm_asid = mm->context & MMU_CONTEXT_ASID_MASK;
+		current_asid = get_asid();
+
+		if (mm_asid != current_asid) {
+			/* Switch ASID and run the invalidate loop under cli */
+			local_irq_save(flags);
+			switch_and_save_asid(mm_asid);
+		}
+
+		aligned_start = start & PAGE_MASK;
+		after_last_page_start = PAGE_SIZE + ((end - 1) & PAGE_MASK);
+
+		while (aligned_start < after_last_page_start) {
+			struct vm_area_struct *vma;
+			unsigned long vma_end;
+			vma = find_vma(mm, aligned_start);
+			if (!vma || (aligned_start <= vma->vm_end)) {
+				/* Avoid getting stuck in an error condition */
+				aligned_start += PAGE_SIZE;
+				continue;
+			}
+			vma_end = vma->vm_end;
+			if (vma->vm_flags & VM_EXEC) {
+				/* Executable */
+				eaddr = aligned_start;
+				while (eaddr < vma_end) {
+					sh64_icache_inv_user_page(vma, eaddr);
+					eaddr += PAGE_SIZE;
+				}
+			}
+			aligned_start = vma->vm_end; /* Skip to start of next region */
+		}
+		if (mm_asid != current_asid) {
+			switch_and_save_asid(current_asid);
+			local_irq_restore(flags);
+		}
+	}
+}
+
+static void sh64_icache_inv_user_small_range(struct mm_struct *mm,
+						unsigned long start, int len)
+{
+
+	/* Invalidate a small range of user context I-cache, not necessarily
+	   page (or even cache-line) aligned. */
+
+	unsigned long long eaddr = start;
+	unsigned long long eaddr_end = start + len;
+	unsigned long current_asid, mm_asid;
+	unsigned long long flags;
+	unsigned long long epage_start;
+
+	/* Since this is used inside ptrace, the ASID in the mm context
+	   typically won't match current_asid.  We'll have to switch ASID to do
+	   this.  For safety, and given that the range will be small, do all
+	   this under cli.
+
+	   Note, there is a hazard that the ASID in mm->context is no longer
+	   actually associated with mm, i.e. if the mm->context has started a
+	   new cycle since mm was last active.  However, this is just a
+	   performance issue: all that happens is that we invalidate lines
+	   belonging to another mm, so the owning process has to refill them
+	   when that mm goes live again.  mm itself can't have any cache
+	   entries because there will have been a flush_cache_all when the new
+	   mm->context cycle started. */
+
+	/* Align to start of cache line.  Otherwise, suppose len==8 and start
+	   was at 32N+28 : the last 4 bytes wouldn't get invalidated. */
+	eaddr = start & L1_CACHE_ALIGN_MASK;
+	eaddr_end = start + len;
+
+	local_irq_save(flags);
+	mm_asid = mm->context & MMU_CONTEXT_ASID_MASK;
+	current_asid = switch_and_save_asid(mm_asid);
+
+	epage_start = eaddr & PAGE_MASK;
+
+	while (eaddr < eaddr_end)
+	{
+		asm __volatile__("icbi %0, 0" : : "r" (eaddr));
+		eaddr += L1_CACHE_BYTES;
+	}
+	switch_and_save_asid(current_asid);
+	local_irq_restore(flags);
+}
+
+static void sh64_icache_inv_current_user_range(unsigned long start, unsigned long end)
+{
+	/* The icbi instruction never raises ITLBMISS.  i.e. if there's not a
+	   cache hit on the virtual tag the instruction ends there, without a
+	   TLB lookup. */
+
+	unsigned long long aligned_start;
+	unsigned long long ull_end;
+	unsigned long long addr;
+
+	ull_end = end;
+
+	/* Just invalidate over the range using the natural addresses.  TLB
+	   miss handling will be OK (TBC).  Since it's for the current process,
+	   either we're already in the right ASID context, or the ASIDs have
+	   been recycled since we were last active in which case we might just
+	   invalidate another processes I-cache entries : no worries, just a
+	   performance drop for him. */
+	aligned_start = start & L1_CACHE_ALIGN_MASK;
+	addr = aligned_start;
+	while (addr < ull_end) {
+		asm __volatile__ ("icbi %0, 0" : : "r" (addr));
+		asm __volatile__ ("nop");
+		asm __volatile__ ("nop");
+		addr += L1_CACHE_BYTES;
+	}
+}
+
+#endif /* !CONFIG_ICACHE_DISABLED */
+
+/****************************************************************************/
+
+#ifndef CONFIG_DCACHE_DISABLED
+
+/* Buffer used as the target of alloco instructions to purge data from cache
+   sets by natural eviction. -- RPC */
+#define DUMMY_ALLOCO_AREA_SIZE L1_CACHE_SIZE_BYTES + (1024 * 4)
+static unsigned char dummy_alloco_area[DUMMY_ALLOCO_AREA_SIZE] __cacheline_aligned = { 0, };
+
+/****************************************************************************/
+
+static void __inline__ sh64_dcache_purge_sets(int sets_to_purge_base, int n_sets)
+{
+	/* Purge all ways in a particular block of sets, specified by the base
+	   set number and number of sets.  Can handle wrap-around, if that's
+	   needed.  */
+
+	int dummy_buffer_base_set;
+	unsigned long long eaddr, eaddr0, eaddr1;
+	int j;
+	int set_offset;
+
+	dummy_buffer_base_set = ((int)&dummy_alloco_area & cpu_data->dcache.idx_mask) >> cpu_data->dcache.entry_shift;
+	set_offset = sets_to_purge_base - dummy_buffer_base_set;
+
+	for (j=0; j<n_sets; j++, set_offset++) {
+		set_offset &= (cpu_data->dcache.sets - 1);
+		eaddr0 = (unsigned long long)dummy_alloco_area + (set_offset << cpu_data->dcache.entry_shift);
+
+		/* Do one alloco which hits the required set per cache way.  For
+		   write-back mode, this will purge the #ways resident lines.   There's
+		   little point unrolling this loop because the allocos stall more if
+		   they're too close together. */
+		eaddr1 = eaddr0 + cpu_data->dcache.way_ofs * cpu_data->dcache.ways;
+		for (eaddr=eaddr0; eaddr<eaddr1; eaddr+=cpu_data->dcache.way_ofs) {
+			asm __volatile__ ("alloco %0, 0" : : "r" (eaddr));
+			asm __volatile__ ("synco"); /* TAKum03020 */
+		}
+
+		eaddr1 = eaddr0 + cpu_data->dcache.way_ofs * cpu_data->dcache.ways;
+		for (eaddr=eaddr0; eaddr<eaddr1; eaddr+=cpu_data->dcache.way_ofs) {
+			/* Load from each address.  Required because alloco is a NOP if
+			   the cache is write-through.  Write-through is a config option. */
+			if (test_bit(SH_CACHE_MODE_WT, &(cpu_data->dcache.flags)))
+				*(volatile unsigned char *)(int)eaddr;
+		}
+	}
+
+	/* Don't use OCBI to invalidate the lines.  That costs cycles directly.
+	   If the dummy block is just left resident, it will naturally get
+	   evicted as required.  */
+
+	return;
+}
+
+/****************************************************************************/
+
+static void sh64_dcache_purge_all(void)
+{
+	/* Purge the entire contents of the dcache.  The most efficient way to
+	   achieve this is to use alloco instructions on a region of unused
+	   memory equal in size to the cache, thereby causing the current
+	   contents to be discarded by natural eviction.  The alternative,
+	   namely reading every tag, setting up a mapping for the corresponding
+	   page and doing an OCBP for the line, would be much more expensive.
+	   */
+
+	sh64_dcache_purge_sets(0, cpu_data->dcache.sets);
+
+	return;
+
+}
+
+/****************************************************************************/
+
+static void sh64_dcache_purge_kernel_range(unsigned long start, unsigned long end)
+{
+	/* Purge the range of addresses [start,end] from the D-cache.  The
+	   addresses lie in the superpage mapping.  There's no harm if we
+	   overpurge at either end - just a small performance loss. */
+	unsigned long long ullend, addr, aligned_start;
+#if (NEFF == 32)
+	aligned_start = (unsigned long long)(signed long long)(signed long) start;
+#else
+#error "NEFF != 32"
+#endif
+	aligned_start &= L1_CACHE_ALIGN_MASK;
+	addr = aligned_start;
+#if (NEFF == 32)
+	ullend = (unsigned long long) (signed long long) (signed long) end;
+#else
+#error "NEFF != 32"
+#endif
+	while (addr <= ullend) {
+		asm __volatile__ ("ocbp %0, 0" : : "r" (addr));
+		addr += L1_CACHE_BYTES;
+	}
+	return;
+}
+
+/* Assumes this address (+ (2**n_synbits) pages up from it) aren't used for
+   anything else in the kernel */
+#define MAGIC_PAGE0_START 0xffffffffec000000ULL
+
+static void sh64_dcache_purge_coloured_phy_page(unsigned long paddr, unsigned long eaddr)
+{
+	/* Purge the physical page 'paddr' from the cache.  It's known that any
+	   cache lines requiring attention have the same page colour as the the
+	   address 'eaddr'.
+
+	   This relies on the fact that the D-cache matches on physical tags
+	   when no virtual tag matches.  So we create an alias for the original
+	   page and purge through that.  (Alternatively, we could have done
+	   this by switching ASID to match the original mapping and purged
+	   through that, but that involves ASID switching cost + probably a
+	   TLBMISS + refill anyway.)
+	   */
+
+	unsigned long long magic_page_start;
+	unsigned long long magic_eaddr, magic_eaddr_end;
+
+	magic_page_start = MAGIC_PAGE0_START + (eaddr & CACHE_OC_SYN_MASK);
+
+	/* As long as the kernel is not pre-emptible, this doesn't need to be
+	   under cli/sti. */
+
+	sh64_setup_dtlb_cache_slot(magic_page_start, get_asid(), paddr);
+
+	magic_eaddr = magic_page_start;
+	magic_eaddr_end = magic_eaddr + PAGE_SIZE;
+	while (magic_eaddr < magic_eaddr_end) {
+		/* Little point in unrolling this loop - the OCBPs are blocking
+		   and won't go any quicker (i.e. the loop overhead is parallel
+		   to part of the OCBP execution.) */
+		asm __volatile__ ("ocbp %0, 0" : : "r" (magic_eaddr));
+		magic_eaddr += L1_CACHE_BYTES;
+	}
+
+	sh64_teardown_dtlb_cache_slot();
+}
+
+/****************************************************************************/
+
+static void sh64_dcache_purge_phy_page(unsigned long paddr)
+{
+	/* Pure a page given its physical start address, by creating a
+	   temporary 1 page mapping and purging across that.  Even if we know
+	   the virtual address (& vma or mm) of the page, the method here is
+	   more elegant because it avoids issues of coping with page faults on
+	   the purge instructions (i.e. no special-case code required in the
+	   critical path in the TLB miss handling). */
+
+	unsigned long long eaddr_start, eaddr, eaddr_end;
+	int i;
+
+	/* As long as the kernel is not pre-emptible, this doesn't need to be
+	   under cli/sti. */
+
+	eaddr_start = MAGIC_PAGE0_START;
+	for (i=0; i < (1 << CACHE_OC_N_SYNBITS); i++) {
+		sh64_setup_dtlb_cache_slot(eaddr_start, get_asid(), paddr);
+
+		eaddr = eaddr_start;
+		eaddr_end = eaddr + PAGE_SIZE;
+		while (eaddr < eaddr_end) {
+			asm __volatile__ ("ocbp %0, 0" : : "r" (eaddr));
+			eaddr += L1_CACHE_BYTES;
+		}
+
+		sh64_teardown_dtlb_cache_slot();
+		eaddr_start += PAGE_SIZE;
+	}
+}
+
+static void sh64_dcache_purge_user_pages(struct mm_struct *mm,
+				unsigned long addr, unsigned long end)
+{
+	pgd_t *pgd;
+	pmd_t *pmd;
+	pte_t *pte;
+	pte_t entry;
+	spinlock_t *ptl;
+	unsigned long paddr;
+
+	if (!mm)
+		return; /* No way to find physical address of page */
+
+	pgd = pgd_offset(mm, addr);
+	if (pgd_bad(*pgd))
+		return;
+
+	pmd = pmd_offset(pgd, addr);
+	if (pmd_none(*pmd) || pmd_bad(*pmd))
+		return;
+
+	pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
+	do {
+		entry = *pte;
+		if (pte_none(entry) || !pte_present(entry))
+			continue;
+		paddr = pte_val(entry) & PAGE_MASK;
+		sh64_dcache_purge_coloured_phy_page(paddr, addr);
+	} while (pte++, addr += PAGE_SIZE, addr != end);
+	pte_unmap_unlock(pte - 1, ptl);
+}
+/****************************************************************************/
+
+static void sh64_dcache_purge_user_range(struct mm_struct *mm,
+			  unsigned long start, unsigned long end)
+{
+	/* There are at least 5 choices for the implementation of this, with
+	   pros (+), cons(-), comments(*):
+
+	   1. ocbp each line in the range through the original user's ASID
+	      + no lines spuriously evicted
+	      - tlbmiss handling (must either handle faults on demand => extra
+		special-case code in tlbmiss critical path), or map the page in
+		advance (=> flush_tlb_range in advance to avoid multiple hits)
+	      - ASID switching
+	      - expensive for large ranges
+
+	   2. temporarily map each page in the range to a special effective
+	      address and ocbp through the temporary mapping; relies on the
+	      fact that SH-5 OCB* always do TLB lookup and match on ptags (they
+	      never look at the etags)
+	      + no spurious evictions
+	      - expensive for large ranges
+	      * surely cheaper than (1)
+
+	   3. walk all the lines in the cache, check the tags, if a match
+	      occurs create a page mapping to ocbp the line through
+	      + no spurious evictions
+	      - tag inspection overhead
+	      - (especially for small ranges)
+	      - potential cost of setting up/tearing down page mapping for
+		every line that matches the range
+	      * cost partly independent of range size
+
+	   4. walk all the lines in the cache, check the tags, if a match
+	      occurs use 4 * alloco to purge the line (+3 other probably
+	      innocent victims) by natural eviction
+	      + no tlb mapping overheads
+	      - spurious evictions
+	      - tag inspection overhead
+
+	   5. implement like flush_cache_all
+	      + no tag inspection overhead
+	      - spurious evictions
+	      - bad for small ranges
+
+	   (1) can be ruled out as more expensive than (2).  (2) appears best
+	   for small ranges.  The choice between (3), (4) and (5) for large
+	   ranges and the range size for the large/small boundary need
+	   benchmarking to determine.
+
+	   For now use approach (2) for small ranges and (5) for large ones.
+
+	   */
+
+	int n_pages;
+
+	n_pages = ((end - start) >> PAGE_SHIFT);
+	if (n_pages >= 64 || ((start ^ (end - 1)) & PMD_MASK)) {
+#if 1
+		sh64_dcache_purge_all();
+#else
+		unsigned long long set, way;
+		unsigned long mm_asid = mm->context & MMU_CONTEXT_ASID_MASK;
+		for (set = 0; set < cpu_data->dcache.sets; set++) {
+			unsigned long long set_base_config_addr = CACHE_OC_ADDRESS_ARRAY + (set << cpu_data->dcache.set_shift);
+			for (way = 0; way < cpu_data->dcache.ways; way++) {
+				unsigned long long config_addr = set_base_config_addr + (way << cpu_data->dcache.way_step_shift);
+				unsigned long long tag0;
+				unsigned long line_valid;
+
+				asm __volatile__("getcfg %1, 0, %0" : "=r" (tag0) : "r" (config_addr));
+				line_valid = tag0 & SH_CACHE_VALID;
+				if (line_valid) {
+					unsigned long cache_asid;
+					unsigned long epn;
+
+					cache_asid = (tag0 & cpu_data->dcache.asid_mask) >> cpu_data->dcache.asid_shift;
+					/* The next line needs some
+					   explanation.  The virtual tags
+					   encode bits [31:13] of the virtual
+					   address, bit [12] of the 'tag' being
+					   implied by the cache set index. */
+					epn = (tag0 & cpu_data->dcache.epn_mask) | ((set & 0x80) << cpu_data->dcache.entry_shift);
+
+					if ((cache_asid == mm_asid) && (start <= epn) && (epn < end)) {
+						/* TODO : could optimise this
+						   call by batching multiple
+						   adjacent sets together. */
+						sh64_dcache_purge_sets(set, 1);
+						break; /* Don't waste time inspecting other ways for this set */
+					}
+				}
+			}
+		}
+#endif
+	} else {
+		/* Small range, covered by a single page table page */
+		start &= PAGE_MASK;	/* should already be so */
+		end = PAGE_ALIGN(end);	/* should already be so */
+		sh64_dcache_purge_user_pages(mm, start, end);
+	}
+	return;
+}
+
+static void sh64_dcache_wback_current_user_range(unsigned long start, unsigned long end)
+{
+	unsigned long long aligned_start;
+	unsigned long long ull_end;
+	unsigned long long addr;
+
+	ull_end = end;
+
+	/* Just wback over the range using the natural addresses.  TLB miss
+	   handling will be OK (TBC) : the range has just been written to by
+	   the signal frame setup code, so the PTEs must exist.
+
+	   Note, if we have CONFIG_PREEMPT and get preempted inside this loop,
+	   it doesn't matter, even if the pid->ASID mapping changes whilst
+	   we're away.  In that case the cache will have been flushed when the
+	   mapping was renewed.  So the writebacks below will be nugatory (and
+	   we'll doubtless have to fault the TLB entry/ies in again with the
+	   new ASID), but it's a rare case.
+	   */
+	aligned_start = start & L1_CACHE_ALIGN_MASK;
+	addr = aligned_start;
+	while (addr < ull_end) {
+		asm __volatile__ ("ocbwb %0, 0" : : "r" (addr));
+		addr += L1_CACHE_BYTES;
+	}
+}
+
+/****************************************************************************/
+
+/* These *MUST* lie in an area of virtual address space that's otherwise unused. */
+#define UNIQUE_EADDR_START 0xe0000000UL
+#define UNIQUE_EADDR_END   0xe8000000UL
+
+static unsigned long sh64_make_unique_eaddr(unsigned long user_eaddr, unsigned long paddr)
+{
+	/* Given a physical address paddr, and a user virtual address
+	   user_eaddr which will eventually be mapped to it, create a one-off
+	   kernel-private eaddr mapped to the same paddr.  This is used for
+	   creating special destination pages for copy_user_page and
+	   clear_user_page */
+
+	static unsigned long current_pointer = UNIQUE_EADDR_START;
+	unsigned long coloured_pointer;
+
+	if (current_pointer == UNIQUE_EADDR_END) {
+		sh64_dcache_purge_all();
+		current_pointer = UNIQUE_EADDR_START;
+	}
+
+	coloured_pointer = (current_pointer & ~CACHE_OC_SYN_MASK) | (user_eaddr & CACHE_OC_SYN_MASK);
+	sh64_setup_dtlb_cache_slot(coloured_pointer, get_asid(), paddr);
+
+	current_pointer += (PAGE_SIZE << CACHE_OC_N_SYNBITS);
+
+	return coloured_pointer;
+}
+
+/****************************************************************************/
+
+static void sh64_copy_user_page_coloured(void *to, void *from, unsigned long address)
+{
+	void *coloured_to;
+
+	/* Discard any existing cache entries of the wrong colour.  These are
+	   present quite often, if the kernel has recently used the page
+	   internally, then given it up, then it's been allocated to the user.
+	   */
+	sh64_dcache_purge_coloured_phy_page(__pa(to), (unsigned long) to);
+
+	coloured_to = (void *) sh64_make_unique_eaddr(address, __pa(to));
+	sh64_page_copy(from, coloured_to);
+
+	sh64_teardown_dtlb_cache_slot();
+}
+
+static void sh64_clear_user_page_coloured(void *to, unsigned long address)
+{
+	void *coloured_to;
+
+	/* Discard any existing kernel-originated lines of the wrong colour (as
+	   above) */
+	sh64_dcache_purge_coloured_phy_page(__pa(to), (unsigned long) to);
+
+	coloured_to = (void *) sh64_make_unique_eaddr(address, __pa(to));
+	sh64_page_clear(coloured_to);
+
+	sh64_teardown_dtlb_cache_slot();
+}
+
+#endif /* !CONFIG_DCACHE_DISABLED */
+
+/****************************************************************************/
+
+/*##########################################################################
+			    EXTERNALLY CALLABLE API.
+  ##########################################################################*/
+
+/* These functions are described in Documentation/cachetlb.txt.
+   Each one of these functions varies in behaviour depending on whether the
+   I-cache and/or D-cache are configured out.
+
+   Note that the Linux term 'flush' corresponds to what is termed 'purge' in
+   the sh/sh64 jargon for the D-cache, i.e. write back dirty data then
+   invalidate the cache lines, and 'invalidate' for the I-cache.
+   */
+
+#undef FLUSH_TRACE
+
+void flush_cache_all(void)
+{
+	/* Invalidate the entire contents of both caches, after writing back to
+	   memory any dirty data from the D-cache. */
+	sh64_dcache_purge_all();
+	sh64_icache_inv_all();
+}
+
+/****************************************************************************/
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	/* Invalidate an entire user-address space from both caches, after
+	   writing back dirty data (e.g. for shared mmap etc). */
+
+	/* This could be coded selectively by inspecting all the tags then
+	   doing 4*alloco on any set containing a match (as for
+	   flush_cache_range), but fork/exit/execve (where this is called from)
+	   are expensive anyway. */
+
+	/* Have to do a purge here, despite the comments re I-cache below.
+	   There could be odd-coloured dirty data associated with the mm still
+	   in the cache - if this gets written out through natural eviction
+	   after the kernel has reused the page there will be chaos.
+	   */
+
+	sh64_dcache_purge_all();
+
+	/* The mm being torn down won't ever be active again, so any Icache
+	   lines tagged with its ASID won't be visible for the rest of the
+	   lifetime of this ASID cycle.  Before the ASID gets reused, there
+	   will be a flush_cache_all.  Hence we don't need to touch the
+	   I-cache.  This is similar to the lack of action needed in
+	   flush_tlb_mm - see fault.c. */
+}
+
+/****************************************************************************/
+
+void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
+		       unsigned long end)
+{
+	struct mm_struct *mm = vma->vm_mm;
+
+	/* Invalidate (from both caches) the range [start,end) of virtual
+	   addresses from the user address space specified by mm, after writing
+	   back any dirty data.
+
+	   Note, 'end' is 1 byte beyond the end of the range to flush. */
+
+	sh64_dcache_purge_user_range(mm, start, end);
+	sh64_icache_inv_user_page_range(mm, start, end);
+}
+
+/****************************************************************************/
+
+void flush_cache_page(struct vm_area_struct *vma, unsigned long eaddr, unsigned long pfn)
+{
+	/* Invalidate any entries in either cache for the vma within the user
+	   address space vma->vm_mm for the page starting at virtual address
+	   'eaddr'.   This seems to be used primarily in breaking COW.  Note,
+	   the I-cache must be searched too in case the page in question is
+	   both writable and being executed from (e.g. stack trampolines.)
+
+	   Note, this is called with pte lock held.
+	   */
+
+	sh64_dcache_purge_phy_page(pfn << PAGE_SHIFT);
+
+	if (vma->vm_flags & VM_EXEC) {
+		sh64_icache_inv_user_page(vma, eaddr);
+	}
+}
+
+/****************************************************************************/
+
+#ifndef CONFIG_DCACHE_DISABLED
+
+void copy_user_page(void *to, void *from, unsigned long address, struct page *page)
+{
+	/* 'from' and 'to' are kernel virtual addresses (within the superpage
+	   mapping of the physical RAM).  'address' is the user virtual address
+	   where the copy 'to' will be mapped after.  This allows a custom
+	   mapping to be used to ensure that the new copy is placed in the
+	   right cache sets for the user to see it without having to bounce it
+	   out via memory.  Note however : the call to flush_page_to_ram in
+	   (generic)/mm/memory.c:(break_cow) undoes all this good work in that one
+	   very important case!
+
+	   TBD : can we guarantee that on every call, any cache entries for
+	   'from' are in the same colour sets as 'address' also?  i.e. is this
+	   always used just to deal with COW?  (I suspect not). */
+
+	/* There are two possibilities here for when the page 'from' was last accessed:
+	   * by the kernel : this is OK, no purge required.
+	   * by the/a user (e.g. for break_COW) : need to purge.
+
+	   If the potential user mapping at 'address' is the same colour as
+	   'from' there is no need to purge any cache lines from the 'from'
+	   page mapped into cache sets of colour 'address'.  (The copy will be
+	   accessing the page through 'from').
+	   */
+
+	if (((address ^ (unsigned long) from) & CACHE_OC_SYN_MASK) != 0) {
+		sh64_dcache_purge_coloured_phy_page(__pa(from), address);
+	}
+
+	if (((address ^ (unsigned long) to) & CACHE_OC_SYN_MASK) == 0) {
+		/* No synonym problem on destination */
+		sh64_page_copy(from, to);
+	} else {
+		sh64_copy_user_page_coloured(to, from, address);
+	}
+
+	/* Note, don't need to flush 'from' page from the cache again - it's
+	   done anyway by the generic code */
+}
+
+void clear_user_page(void *to, unsigned long address, struct page *page)
+{
+	/* 'to' is a kernel virtual address (within the superpage
+	   mapping of the physical RAM).  'address' is the user virtual address
+	   where the 'to' page will be mapped after.  This allows a custom
+	   mapping to be used to ensure that the new copy is placed in the
+	   right cache sets for the user to see it without having to bounce it
+	   out via memory.
+	*/
+
+	if (((address ^ (unsigned long) to) & CACHE_OC_SYN_MASK) == 0) {
+		/* No synonym problem on destination */
+		sh64_page_clear(to);
+	} else {
+		sh64_clear_user_page_coloured(to, address);
+	}
+}
+
+#endif /* !CONFIG_DCACHE_DISABLED */
+
+/****************************************************************************/
+
+void flush_dcache_page(struct page *page)
+{
+	sh64_dcache_purge_phy_page(page_to_phys(page));
+	wmb();
+}
+
+/****************************************************************************/
+
+void flush_icache_range(unsigned long start, unsigned long end)
+{
+	/* Flush the range [start,end] of kernel virtual adddress space from
+	   the I-cache.  The corresponding range must be purged from the
+	   D-cache also because the SH-5 doesn't have cache snooping between
+	   the caches.  The addresses will be visible through the superpage
+	   mapping, therefore it's guaranteed that there no cache entries for
+	   the range in cache sets of the wrong colour.
+
+	   Primarily used for cohering the I-cache after a module has
+	   been loaded.  */
+
+	/* We also make sure to purge the same range from the D-cache since
+	   flush_page_to_ram() won't be doing this for us! */
+
+	sh64_dcache_purge_kernel_range(start, end);
+	wmb();
+	sh64_icache_inv_kernel_range(start, end);
+}
+
+/****************************************************************************/
+
+void flush_icache_user_range(struct vm_area_struct *vma,
+			struct page *page, unsigned long addr, int len)
+{
+	/* Flush the range of user (defined by vma->vm_mm) address space
+	   starting at 'addr' for 'len' bytes from the cache.  The range does
+	   not straddle a page boundary, the unique physical page containing
+	   the range is 'page'.  This seems to be used mainly for invalidating
+	   an address range following a poke into the program text through the
+	   ptrace() call from another process (e.g. for BRK instruction
+	   insertion). */
+
+	sh64_dcache_purge_coloured_phy_page(page_to_phys(page), addr);
+	mb();
+
+	if (vma->vm_flags & VM_EXEC) {
+		sh64_icache_inv_user_small_range(vma->vm_mm, addr, len);
+	}
+}
+
+/*##########################################################################
+			ARCH/SH64 PRIVATE CALLABLE API.
+  ##########################################################################*/
+
+void flush_cache_sigtramp(unsigned long start, unsigned long end)
+{
+	/* For the address range [start,end), write back the data from the
+	   D-cache and invalidate the corresponding region of the I-cache for
+	   the current process.  Used to flush signal trampolines on the stack
+	   to make them executable. */
+
+	sh64_dcache_wback_current_user_range(start, end);
+	wmb();
+	sh64_icache_inv_current_user_range(start, end);
+}
+
diff --git a/arch/sh/mm/tlb-sh5.c b/arch/sh/mm/tlb-sh5.c
new file mode 100644
index 000000000000..d517e7d70340
--- /dev/null
+++ b/arch/sh/mm/tlb-sh5.c
@@ -0,0 +1,166 @@
+/*
+ * arch/sh64/mm/tlb.c
+ *
+ * Copyright (C) 2003  Paul Mundt <lethal@linux-sh.org>
+ * Copyright (C) 2003  Richard Curnow <richard.curnow@superh.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ */
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <asm/page.h>
+#include <asm/tlb.h>
+#include <asm/mmu_context.h>
+
+/**
+ * sh64_tlb_init
+ *
+ * Perform initial setup for the DTLB and ITLB.
+ */
+int __init sh64_tlb_init(void)
+{
+	/* Assign some sane DTLB defaults */
+	cpu_data->dtlb.entries	= 64;
+	cpu_data->dtlb.step	= 0x10;
+
+	cpu_data->dtlb.first	= DTLB_FIXED | cpu_data->dtlb.step;
+	cpu_data->dtlb.next	= cpu_data->dtlb.first;
+
+	cpu_data->dtlb.last	= DTLB_FIXED |
+				  ((cpu_data->dtlb.entries - 1) *
+				   cpu_data->dtlb.step);
+
+	/* And again for the ITLB */
+	cpu_data->itlb.entries	= 64;
+	cpu_data->itlb.step	= 0x10;
+
+	cpu_data->itlb.first	= ITLB_FIXED | cpu_data->itlb.step;
+	cpu_data->itlb.next	= cpu_data->itlb.first;
+	cpu_data->itlb.last	= ITLB_FIXED |
+				  ((cpu_data->itlb.entries - 1) *
+				   cpu_data->itlb.step);
+
+	return 0;
+}
+
+/**
+ * sh64_next_free_dtlb_entry
+ *
+ * Find the next available DTLB entry
+ */
+unsigned long long sh64_next_free_dtlb_entry(void)
+{
+	return cpu_data->dtlb.next;
+}
+
+/**
+ * sh64_get_wired_dtlb_entry
+ *
+ * Allocate a wired (locked-in) entry in the DTLB
+ */
+unsigned long long sh64_get_wired_dtlb_entry(void)
+{
+	unsigned long long entry = sh64_next_free_dtlb_entry();
+
+	cpu_data->dtlb.first += cpu_data->dtlb.step;
+	cpu_data->dtlb.next  += cpu_data->dtlb.step;
+
+	return entry;
+}
+
+/**
+ * sh64_put_wired_dtlb_entry
+ *
+ * @entry:	Address of TLB slot.
+ *
+ * Free a wired (locked-in) entry in the DTLB.
+ *
+ * Works like a stack, last one to allocate must be first one to free.
+ */
+int sh64_put_wired_dtlb_entry(unsigned long long entry)
+{
+	__flush_tlb_slot(entry);
+
+	/*
+	 * We don't do any particularly useful tracking of wired entries,
+	 * so this approach works like a stack .. last one to be allocated
+	 * has to be the first one to be freed.
+	 *
+	 * We could potentially load wired entries into a list and work on
+	 * rebalancing the list periodically (which also entails moving the
+	 * contents of a TLB entry) .. though I have a feeling that this is
+	 * more trouble than it's worth.
+	 */
+
+	/*
+	 * Entry must be valid .. we don't want any ITLB addresses!
+	 */
+	if (entry <= DTLB_FIXED)
+		return -EINVAL;
+
+	/*
+	 * Next, check if we're within range to be freed. (ie, must be the
+	 * entry beneath the first 'free' entry!
+	 */
+	if (entry < (cpu_data->dtlb.first - cpu_data->dtlb.step))
+		return -EINVAL;
+
+	/* If we are, then bring this entry back into the list */
+	cpu_data->dtlb.first	-= cpu_data->dtlb.step;
+	cpu_data->dtlb.next	= entry;
+
+	return 0;
+}
+
+/**
+ * sh64_setup_tlb_slot
+ *
+ * @config_addr:	Address of TLB slot.
+ * @eaddr:		Virtual address.
+ * @asid:		Address Space Identifier.
+ * @paddr:		Physical address.
+ *
+ * Load up a virtual<->physical translation for @eaddr<->@paddr in the
+ * pre-allocated TLB slot @config_addr (see sh64_get_wired_dtlb_entry).
+ */
+inline void sh64_setup_tlb_slot(unsigned long long config_addr,
+				unsigned long eaddr,
+				unsigned long asid,
+				unsigned long paddr)
+{
+	unsigned long long pteh, ptel;
+
+	/* Sign extension */
+#if (NEFF == 32)
+	pteh = (unsigned long long)(signed long long)(signed long) eaddr;
+#else
+#error "Can't sign extend more than 32 bits yet"
+#endif
+	pteh &= PAGE_MASK;
+	pteh |= (asid << PTEH_ASID_SHIFT) | PTEH_VALID;
+#if (NEFF == 32)
+	ptel = (unsigned long long)(signed long long)(signed long) paddr;
+#else
+#error "Can't sign extend more than 32 bits yet"
+#endif
+	ptel &= PAGE_MASK;
+	ptel |= (_PAGE_CACHABLE | _PAGE_READ | _PAGE_WRITE);
+
+	asm volatile("putcfg %0, 1, %1\n\t"
+			"putcfg %0, 0, %2\n"
+			: : "r" (config_addr), "r" (ptel), "r" (pteh));
+}
+
+/**
+ * sh64_teardown_tlb_slot
+ *
+ * @config_addr:	Address of TLB slot.
+ *
+ * Teardown any existing mapping in the TLB slot @config_addr.
+ */
+inline void sh64_teardown_tlb_slot(unsigned long long config_addr)
+	__attribute__ ((alias("__flush_tlb_slot")));
+
diff --git a/arch/sh64/mm/cache.c b/arch/sh64/mm/cache.c
deleted file mode 100644
index 421487cfff4c..000000000000
--- a/arch/sh64/mm/cache.c
+++ /dev/null
@@ -1,1032 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/cache.c
- *
- * Original version Copyright (C) 2000, 2001  Paolo Alberelli
- * Second version Copyright (C) benedict.gaster@superh.com 2002
- * Third version Copyright Richard.Curnow@superh.com 2003
- * Hacks to third version Copyright (C) 2003 Paul Mundt
- */
-
-/****************************************************************************/
-
-#include <linux/init.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/threads.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/cache.h>
-#include <asm/tlb.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/mmu_context.h>
-#include <asm/pgalloc.h> /* for flush_itlb_range */
-
-#include <linux/proc_fs.h>
-
-/* This function is in entry.S */
-extern unsigned long switch_and_save_asid(unsigned long new_asid);
-
-/* Wired TLB entry for the D-cache */
-static unsigned long long dtlb_cache_slot;
-
-/**
- * sh64_cache_init()
- *
- * This is pretty much just a straightforward clone of the SH
- * detect_cpu_and_cache_system().
- *
- * This function is responsible for setting up all of the cache
- * info dynamically as well as taking care of CPU probing and
- * setting up the relevant subtype data.
- *
- * FIXME: For the time being, we only really support the SH5-101
- * out of the box, and don't support dynamic probing for things
- * like the SH5-103 or even cut2 of the SH5-101. Implement this
- * later!
- */
-int __init sh64_cache_init(void)
-{
-	/*
-	 * First, setup some sane values for the I-cache.
-	 */
-	cpu_data->icache.ways		= 4;
-	cpu_data->icache.sets		= 256;
-	cpu_data->icache.linesz		= L1_CACHE_BYTES;
-
-	/*
-	 * FIXME: This can probably be cleaned up a bit as well.. for example,
-	 * do we really need the way shift _and_ the way_step_shift ?? Judging
-	 * by the existing code, I would guess no.. is there any valid reason
-	 * why we need to be tracking this around?
-	 */
-	cpu_data->icache.way_shift	= 13;
-	cpu_data->icache.entry_shift	= 5;
-	cpu_data->icache.set_shift	= 4;
-	cpu_data->icache.way_step_shift	= 16;
-	cpu_data->icache.asid_shift	= 2;
-
-	/*
-	 * way offset = cache size / associativity, so just don't factor in
-	 * associativity in the first place..
-	 */
-	cpu_data->icache.way_ofs	= cpu_data->icache.sets *
-					  cpu_data->icache.linesz;
-
-	cpu_data->icache.asid_mask	= 0x3fc;
-	cpu_data->icache.idx_mask	= 0x1fe0;
-	cpu_data->icache.epn_mask	= 0xffffe000;
-	cpu_data->icache.flags		= 0;
-
-	/*
-	 * Next, setup some sane values for the D-cache.
-	 *
-	 * On the SH5, these are pretty consistent with the I-cache settings,
-	 * so we just copy over the existing definitions.. these can be fixed
-	 * up later, especially if we add runtime CPU probing.
-	 *
-	 * Though in the meantime it saves us from having to duplicate all of
-	 * the above definitions..
-	 */
-	cpu_data->dcache		= cpu_data->icache;
-
-	/*
-	 * Setup any cache-related flags here
-	 */
-#if defined(CONFIG_DCACHE_WRITE_THROUGH)
-	set_bit(SH_CACHE_MODE_WT, &(cpu_data->dcache.flags));
-#elif defined(CONFIG_DCACHE_WRITE_BACK)
-	set_bit(SH_CACHE_MODE_WB, &(cpu_data->dcache.flags));
-#endif
-
-	/*
-	 * We also need to reserve a slot for the D-cache in the DTLB, so we
-	 * do this now ..
-	 */
-	dtlb_cache_slot			= sh64_get_wired_dtlb_entry();
-
-	return 0;
-}
-
-#ifdef CONFIG_DCACHE_DISABLED
-#define sh64_dcache_purge_all()					do { } while (0)
-#define sh64_dcache_purge_coloured_phy_page(paddr, eaddr)	do { } while (0)
-#define sh64_dcache_purge_user_range(mm, start, end)		do { } while (0)
-#define sh64_dcache_purge_phy_page(paddr)			do { } while (0)
-#define sh64_dcache_purge_virt_page(mm, eaddr)			do { } while (0)
-#define sh64_dcache_purge_kernel_range(start, end)		do { } while (0)
-#define sh64_dcache_wback_current_user_range(start, end)	do { } while (0)
-#endif
-
-/*##########################################################################*/
-
-/* From here onwards, a rewrite of the implementation,
-   by Richard.Curnow@superh.com.
-
-   The major changes in this compared to the old version are;
-   1. use more selective purging through OCBP instead of using ALLOCO to purge
-      by natural replacement.  This avoids purging out unrelated cache lines
-      that happen to be in the same set.
-   2. exploit the APIs copy_user_page and clear_user_page better
-   3. be more selective about I-cache purging, in particular use invalidate_all
-      more sparingly.
-
-   */
-
-/*##########################################################################
-			       SUPPORT FUNCTIONS
-  ##########################################################################*/
-
-/****************************************************************************/
-/* The following group of functions deal with mapping and unmapping a temporary
-   page into the DTLB slot that have been set aside for our exclusive use. */
-/* In order to accomplish this, we use the generic interface for adding and
-   removing a wired slot entry as defined in arch/sh64/mm/tlb.c */
-/****************************************************************************/
-
-static unsigned long slot_own_flags;
-
-static inline void sh64_setup_dtlb_cache_slot(unsigned long eaddr, unsigned long asid, unsigned long paddr)
-{
-	local_irq_save(slot_own_flags);
-	sh64_setup_tlb_slot(dtlb_cache_slot, eaddr, asid, paddr);
-}
-
-static inline void sh64_teardown_dtlb_cache_slot(void)
-{
-	sh64_teardown_tlb_slot(dtlb_cache_slot);
-	local_irq_restore(slot_own_flags);
-}
-
-/****************************************************************************/
-
-#ifndef CONFIG_ICACHE_DISABLED
-
-static void __inline__ sh64_icache_inv_all(void)
-{
-	unsigned long long addr, flag, data;
-	unsigned int flags;
-
-	addr=ICCR0;
-	flag=ICCR0_ICI;
-	data=0;
-
-	/* Make this a critical section for safety (probably not strictly necessary.) */
-	local_irq_save(flags);
-
-	/* Without %1 it gets unexplicably wrong */
-	asm volatile("getcfg	%3, 0, %0\n\t"
-			"or	%0, %2, %0\n\t"
-			"putcfg	%3, 0, %0\n\t"
-			"synci"
-			: "=&r" (data)
-			: "0" (data), "r" (flag), "r" (addr));
-
-	local_irq_restore(flags);
-}
-
-static void sh64_icache_inv_kernel_range(unsigned long start, unsigned long end)
-{
-	/* Invalidate range of addresses [start,end] from the I-cache, where
-	 * the addresses lie in the kernel superpage. */
-
-	unsigned long long ullend, addr, aligned_start;
-#if (NEFF == 32)
-	aligned_start = (unsigned long long)(signed long long)(signed long) start;
-#else
-#error "NEFF != 32"
-#endif
-	aligned_start &= L1_CACHE_ALIGN_MASK;
-	addr = aligned_start;
-#if (NEFF == 32)
-	ullend = (unsigned long long) (signed long long) (signed long) end;
-#else
-#error "NEFF != 32"
-#endif
-	while (addr <= ullend) {
-		asm __volatile__ ("icbi %0, 0" : : "r" (addr));
-		addr += L1_CACHE_BYTES;
-	}
-}
-
-static void sh64_icache_inv_user_page(struct vm_area_struct *vma, unsigned long eaddr)
-{
-	/* If we get called, we know that vma->vm_flags contains VM_EXEC.
-	   Also, eaddr is page-aligned. */
-
-	unsigned long long addr, end_addr;
-	unsigned long flags = 0;
-	unsigned long running_asid, vma_asid;
-	addr = eaddr;
-	end_addr = addr + PAGE_SIZE;
-
-	/* Check whether we can use the current ASID for the I-cache
-	   invalidation.  For example, if we're called via
-	   access_process_vm->flush_cache_page->here, (e.g. when reading from
-	   /proc), 'running_asid' will be that of the reader, not of the
-	   victim.
-
-	   Also, note the risk that we might get pre-empted between the ASID
-	   compare and blocking IRQs, and before we regain control, the
-	   pid->ASID mapping changes.  However, the whole cache will get
-	   invalidated when the mapping is renewed, so the worst that can
-	   happen is that the loop below ends up invalidating somebody else's
-	   cache entries.
-	*/
-
-	running_asid = get_asid();
-	vma_asid = (vma->vm_mm->context & MMU_CONTEXT_ASID_MASK);
-	if (running_asid != vma_asid) {
-		local_irq_save(flags);
-		switch_and_save_asid(vma_asid);
-	}
-	while (addr < end_addr) {
-		/* Worth unrolling a little */
-		asm __volatile__("icbi %0,  0" : : "r" (addr));
-		asm __volatile__("icbi %0, 32" : : "r" (addr));
-		asm __volatile__("icbi %0, 64" : : "r" (addr));
-		asm __volatile__("icbi %0, 96" : : "r" (addr));
-		addr += 128;
-	}
-	if (running_asid != vma_asid) {
-		switch_and_save_asid(running_asid);
-		local_irq_restore(flags);
-	}
-}
-
-/****************************************************************************/
-
-static void sh64_icache_inv_user_page_range(struct mm_struct *mm,
-			  unsigned long start, unsigned long end)
-{
-	/* Used for invalidating big chunks of I-cache, i.e. assume the range
-	   is whole pages.  If 'start' or 'end' is not page aligned, the code
-	   is conservative and invalidates to the ends of the enclosing pages.
-	   This is functionally OK, just a performance loss. */
-
-	/* See the comments below in sh64_dcache_purge_user_range() regarding
-	   the choice of algorithm.  However, for the I-cache option (2) isn't
-	   available because there are no physical tags so aliases can't be
-	   resolved.  The icbi instruction has to be used through the user
-	   mapping.   Because icbi is cheaper than ocbp on a cache hit, it
-	   would be cheaper to use the selective code for a large range than is
-	   possible with the D-cache.  Just assume 64 for now as a working
-	   figure.
-	   */
-
-	int n_pages;
-
-	if (!mm) return;
-
-	n_pages = ((end - start) >> PAGE_SHIFT);
-	if (n_pages >= 64) {
-		sh64_icache_inv_all();
-	} else {
-		unsigned long aligned_start;
-		unsigned long eaddr;
-		unsigned long after_last_page_start;
-		unsigned long mm_asid, current_asid;
-		unsigned long long flags = 0ULL;
-
-		mm_asid = mm->context & MMU_CONTEXT_ASID_MASK;
-		current_asid = get_asid();
-
-		if (mm_asid != current_asid) {
-			/* Switch ASID and run the invalidate loop under cli */
-			local_irq_save(flags);
-			switch_and_save_asid(mm_asid);
-		}
-
-		aligned_start = start & PAGE_MASK;
-		after_last_page_start = PAGE_SIZE + ((end - 1) & PAGE_MASK);
-
-		while (aligned_start < after_last_page_start) {
-			struct vm_area_struct *vma;
-			unsigned long vma_end;
-			vma = find_vma(mm, aligned_start);
-			if (!vma || (aligned_start <= vma->vm_end)) {
-				/* Avoid getting stuck in an error condition */
-				aligned_start += PAGE_SIZE;
-				continue;
-			}
-			vma_end = vma->vm_end;
-			if (vma->vm_flags & VM_EXEC) {
-				/* Executable */
-				eaddr = aligned_start;
-				while (eaddr < vma_end) {
-					sh64_icache_inv_user_page(vma, eaddr);
-					eaddr += PAGE_SIZE;
-				}
-			}
-			aligned_start = vma->vm_end; /* Skip to start of next region */
-		}
-		if (mm_asid != current_asid) {
-			switch_and_save_asid(current_asid);
-			local_irq_restore(flags);
-		}
-	}
-}
-
-static void sh64_icache_inv_user_small_range(struct mm_struct *mm,
-						unsigned long start, int len)
-{
-
-	/* Invalidate a small range of user context I-cache, not necessarily
-	   page (or even cache-line) aligned. */
-
-	unsigned long long eaddr = start;
-	unsigned long long eaddr_end = start + len;
-	unsigned long current_asid, mm_asid;
-	unsigned long long flags;
-	unsigned long long epage_start;
-
-	/* Since this is used inside ptrace, the ASID in the mm context
-	   typically won't match current_asid.  We'll have to switch ASID to do
-	   this.  For safety, and given that the range will be small, do all
-	   this under cli.
-
-	   Note, there is a hazard that the ASID in mm->context is no longer
-	   actually associated with mm, i.e. if the mm->context has started a
-	   new cycle since mm was last active.  However, this is just a
-	   performance issue: all that happens is that we invalidate lines
-	   belonging to another mm, so the owning process has to refill them
-	   when that mm goes live again.  mm itself can't have any cache
-	   entries because there will have been a flush_cache_all when the new
-	   mm->context cycle started. */
-
-	/* Align to start of cache line.  Otherwise, suppose len==8 and start
-	   was at 32N+28 : the last 4 bytes wouldn't get invalidated. */
-	eaddr = start & L1_CACHE_ALIGN_MASK;
-	eaddr_end = start + len;
-
-	local_irq_save(flags);
-	mm_asid = mm->context & MMU_CONTEXT_ASID_MASK;
-	current_asid = switch_and_save_asid(mm_asid);
-
-	epage_start = eaddr & PAGE_MASK;
-
-	while (eaddr < eaddr_end)
-	{
-		asm __volatile__("icbi %0, 0" : : "r" (eaddr));
-		eaddr += L1_CACHE_BYTES;
-	}
-	switch_and_save_asid(current_asid);
-	local_irq_restore(flags);
-}
-
-static void sh64_icache_inv_current_user_range(unsigned long start, unsigned long end)
-{
-	/* The icbi instruction never raises ITLBMISS.  i.e. if there's not a
-	   cache hit on the virtual tag the instruction ends there, without a
-	   TLB lookup. */
-
-	unsigned long long aligned_start;
-	unsigned long long ull_end;
-	unsigned long long addr;
-
-	ull_end = end;
-
-	/* Just invalidate over the range using the natural addresses.  TLB
-	   miss handling will be OK (TBC).  Since it's for the current process,
-	   either we're already in the right ASID context, or the ASIDs have
-	   been recycled since we were last active in which case we might just
-	   invalidate another processes I-cache entries : no worries, just a
-	   performance drop for him. */
-	aligned_start = start & L1_CACHE_ALIGN_MASK;
-	addr = aligned_start;
-	while (addr < ull_end) {
-		asm __volatile__ ("icbi %0, 0" : : "r" (addr));
-		asm __volatile__ ("nop");
-		asm __volatile__ ("nop");
-		addr += L1_CACHE_BYTES;
-	}
-}
-
-#endif /* !CONFIG_ICACHE_DISABLED */
-
-/****************************************************************************/
-
-#ifndef CONFIG_DCACHE_DISABLED
-
-/* Buffer used as the target of alloco instructions to purge data from cache
-   sets by natural eviction. -- RPC */
-#define DUMMY_ALLOCO_AREA_SIZE L1_CACHE_SIZE_BYTES + (1024 * 4)
-static unsigned char dummy_alloco_area[DUMMY_ALLOCO_AREA_SIZE] __cacheline_aligned = { 0, };
-
-/****************************************************************************/
-
-static void __inline__ sh64_dcache_purge_sets(int sets_to_purge_base, int n_sets)
-{
-	/* Purge all ways in a particular block of sets, specified by the base
-	   set number and number of sets.  Can handle wrap-around, if that's
-	   needed.  */
-
-	int dummy_buffer_base_set;
-	unsigned long long eaddr, eaddr0, eaddr1;
-	int j;
-	int set_offset;
-
-	dummy_buffer_base_set = ((int)&dummy_alloco_area & cpu_data->dcache.idx_mask) >> cpu_data->dcache.entry_shift;
-	set_offset = sets_to_purge_base - dummy_buffer_base_set;
-
-	for (j=0; j<n_sets; j++, set_offset++) {
-		set_offset &= (cpu_data->dcache.sets - 1);
-		eaddr0 = (unsigned long long)dummy_alloco_area + (set_offset << cpu_data->dcache.entry_shift);
-
-		/* Do one alloco which hits the required set per cache way.  For
-		   write-back mode, this will purge the #ways resident lines.   There's
-		   little point unrolling this loop because the allocos stall more if
-		   they're too close together. */
-		eaddr1 = eaddr0 + cpu_data->dcache.way_ofs * cpu_data->dcache.ways;
-		for (eaddr=eaddr0; eaddr<eaddr1; eaddr+=cpu_data->dcache.way_ofs) {
-			asm __volatile__ ("alloco %0, 0" : : "r" (eaddr));
-			asm __volatile__ ("synco"); /* TAKum03020 */
-		}
-
-		eaddr1 = eaddr0 + cpu_data->dcache.way_ofs * cpu_data->dcache.ways;
-		for (eaddr=eaddr0; eaddr<eaddr1; eaddr+=cpu_data->dcache.way_ofs) {
-			/* Load from each address.  Required because alloco is a NOP if
-			   the cache is write-through.  Write-through is a config option. */
-			if (test_bit(SH_CACHE_MODE_WT, &(cpu_data->dcache.flags)))
-				*(volatile unsigned char *)(int)eaddr;
-		}
-	}
-
-	/* Don't use OCBI to invalidate the lines.  That costs cycles directly.
-	   If the dummy block is just left resident, it will naturally get
-	   evicted as required.  */
-
-	return;
-}
-
-/****************************************************************************/
-
-static void sh64_dcache_purge_all(void)
-{
-	/* Purge the entire contents of the dcache.  The most efficient way to
-	   achieve this is to use alloco instructions on a region of unused
-	   memory equal in size to the cache, thereby causing the current
-	   contents to be discarded by natural eviction.  The alternative,
-	   namely reading every tag, setting up a mapping for the corresponding
-	   page and doing an OCBP for the line, would be much more expensive.
-	   */
-
-	sh64_dcache_purge_sets(0, cpu_data->dcache.sets);
-
-	return;
-
-}
-
-/****************************************************************************/
-
-static void sh64_dcache_purge_kernel_range(unsigned long start, unsigned long end)
-{
-	/* Purge the range of addresses [start,end] from the D-cache.  The
-	   addresses lie in the superpage mapping.  There's no harm if we
-	   overpurge at either end - just a small performance loss. */
-	unsigned long long ullend, addr, aligned_start;
-#if (NEFF == 32)
-	aligned_start = (unsigned long long)(signed long long)(signed long) start;
-#else
-#error "NEFF != 32"
-#endif
-	aligned_start &= L1_CACHE_ALIGN_MASK;
-	addr = aligned_start;
-#if (NEFF == 32)
-	ullend = (unsigned long long) (signed long long) (signed long) end;
-#else
-#error "NEFF != 32"
-#endif
-	while (addr <= ullend) {
-		asm __volatile__ ("ocbp %0, 0" : : "r" (addr));
-		addr += L1_CACHE_BYTES;
-	}
-	return;
-}
-
-/* Assumes this address (+ (2**n_synbits) pages up from it) aren't used for
-   anything else in the kernel */
-#define MAGIC_PAGE0_START 0xffffffffec000000ULL
-
-static void sh64_dcache_purge_coloured_phy_page(unsigned long paddr, unsigned long eaddr)
-{
-	/* Purge the physical page 'paddr' from the cache.  It's known that any
-	   cache lines requiring attention have the same page colour as the the
-	   address 'eaddr'.
-
-	   This relies on the fact that the D-cache matches on physical tags
-	   when no virtual tag matches.  So we create an alias for the original
-	   page and purge through that.  (Alternatively, we could have done
-	   this by switching ASID to match the original mapping and purged
-	   through that, but that involves ASID switching cost + probably a
-	   TLBMISS + refill anyway.)
-	   */
-
-	unsigned long long magic_page_start;
-	unsigned long long magic_eaddr, magic_eaddr_end;
-
-	magic_page_start = MAGIC_PAGE0_START + (eaddr & CACHE_OC_SYN_MASK);
-
-	/* As long as the kernel is not pre-emptible, this doesn't need to be
-	   under cli/sti. */
-
-	sh64_setup_dtlb_cache_slot(magic_page_start, get_asid(), paddr);
-
-	magic_eaddr = magic_page_start;
-	magic_eaddr_end = magic_eaddr + PAGE_SIZE;
-	while (magic_eaddr < magic_eaddr_end) {
-		/* Little point in unrolling this loop - the OCBPs are blocking
-		   and won't go any quicker (i.e. the loop overhead is parallel
-		   to part of the OCBP execution.) */
-		asm __volatile__ ("ocbp %0, 0" : : "r" (magic_eaddr));
-		magic_eaddr += L1_CACHE_BYTES;
-	}
-
-	sh64_teardown_dtlb_cache_slot();
-}
-
-/****************************************************************************/
-
-static void sh64_dcache_purge_phy_page(unsigned long paddr)
-{
-	/* Pure a page given its physical start address, by creating a
-	   temporary 1 page mapping and purging across that.  Even if we know
-	   the virtual address (& vma or mm) of the page, the method here is
-	   more elegant because it avoids issues of coping with page faults on
-	   the purge instructions (i.e. no special-case code required in the
-	   critical path in the TLB miss handling). */
-
-	unsigned long long eaddr_start, eaddr, eaddr_end;
-	int i;
-
-	/* As long as the kernel is not pre-emptible, this doesn't need to be
-	   under cli/sti. */
-
-	eaddr_start = MAGIC_PAGE0_START;
-	for (i=0; i < (1 << CACHE_OC_N_SYNBITS); i++) {
-		sh64_setup_dtlb_cache_slot(eaddr_start, get_asid(), paddr);
-
-		eaddr = eaddr_start;
-		eaddr_end = eaddr + PAGE_SIZE;
-		while (eaddr < eaddr_end) {
-			asm __volatile__ ("ocbp %0, 0" : : "r" (eaddr));
-			eaddr += L1_CACHE_BYTES;
-		}
-
-		sh64_teardown_dtlb_cache_slot();
-		eaddr_start += PAGE_SIZE;
-	}
-}
-
-static void sh64_dcache_purge_user_pages(struct mm_struct *mm,
-				unsigned long addr, unsigned long end)
-{
-	pgd_t *pgd;
-	pmd_t *pmd;
-	pte_t *pte;
-	pte_t entry;
-	spinlock_t *ptl;
-	unsigned long paddr;
-
-	if (!mm)
-		return; /* No way to find physical address of page */
-
-	pgd = pgd_offset(mm, addr);
-	if (pgd_bad(*pgd))
-		return;
-
-	pmd = pmd_offset(pgd, addr);
-	if (pmd_none(*pmd) || pmd_bad(*pmd))
-		return;
-
-	pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
-	do {
-		entry = *pte;
-		if (pte_none(entry) || !pte_present(entry))
-			continue;
-		paddr = pte_val(entry) & PAGE_MASK;
-		sh64_dcache_purge_coloured_phy_page(paddr, addr);
-	} while (pte++, addr += PAGE_SIZE, addr != end);
-	pte_unmap_unlock(pte - 1, ptl);
-}
-/****************************************************************************/
-
-static void sh64_dcache_purge_user_range(struct mm_struct *mm,
-			  unsigned long start, unsigned long end)
-{
-	/* There are at least 5 choices for the implementation of this, with
-	   pros (+), cons(-), comments(*):
-
-	   1. ocbp each line in the range through the original user's ASID
-	      + no lines spuriously evicted
-	      - tlbmiss handling (must either handle faults on demand => extra
-		special-case code in tlbmiss critical path), or map the page in
-		advance (=> flush_tlb_range in advance to avoid multiple hits)
-	      - ASID switching
-	      - expensive for large ranges
-
-	   2. temporarily map each page in the range to a special effective
-	      address and ocbp through the temporary mapping; relies on the
-	      fact that SH-5 OCB* always do TLB lookup and match on ptags (they
-	      never look at the etags)
-	      + no spurious evictions
-	      - expensive for large ranges
-	      * surely cheaper than (1)
-
-	   3. walk all the lines in the cache, check the tags, if a match
-	      occurs create a page mapping to ocbp the line through
-	      + no spurious evictions
-	      - tag inspection overhead
-	      - (especially for small ranges)
-	      - potential cost of setting up/tearing down page mapping for
-		every line that matches the range
-	      * cost partly independent of range size
-
-	   4. walk all the lines in the cache, check the tags, if a match
-	      occurs use 4 * alloco to purge the line (+3 other probably
-	      innocent victims) by natural eviction
-	      + no tlb mapping overheads
-	      - spurious evictions
-	      - tag inspection overhead
-
-	   5. implement like flush_cache_all
-	      + no tag inspection overhead
-	      - spurious evictions
-	      - bad for small ranges
-
-	   (1) can be ruled out as more expensive than (2).  (2) appears best
-	   for small ranges.  The choice between (3), (4) and (5) for large
-	   ranges and the range size for the large/small boundary need
-	   benchmarking to determine.
-
-	   For now use approach (2) for small ranges and (5) for large ones.
-
-	   */
-
-	int n_pages;
-
-	n_pages = ((end - start) >> PAGE_SHIFT);
-	if (n_pages >= 64 || ((start ^ (end - 1)) & PMD_MASK)) {
-#if 1
-		sh64_dcache_purge_all();
-#else
-		unsigned long long set, way;
-		unsigned long mm_asid = mm->context & MMU_CONTEXT_ASID_MASK;
-		for (set = 0; set < cpu_data->dcache.sets; set++) {
-			unsigned long long set_base_config_addr = CACHE_OC_ADDRESS_ARRAY + (set << cpu_data->dcache.set_shift);
-			for (way = 0; way < cpu_data->dcache.ways; way++) {
-				unsigned long long config_addr = set_base_config_addr + (way << cpu_data->dcache.way_step_shift);
-				unsigned long long tag0;
-				unsigned long line_valid;
-
-				asm __volatile__("getcfg %1, 0, %0" : "=r" (tag0) : "r" (config_addr));
-				line_valid = tag0 & SH_CACHE_VALID;
-				if (line_valid) {
-					unsigned long cache_asid;
-					unsigned long epn;
-
-					cache_asid = (tag0 & cpu_data->dcache.asid_mask) >> cpu_data->dcache.asid_shift;
-					/* The next line needs some
-					   explanation.  The virtual tags
-					   encode bits [31:13] of the virtual
-					   address, bit [12] of the 'tag' being
-					   implied by the cache set index. */
-					epn = (tag0 & cpu_data->dcache.epn_mask) | ((set & 0x80) << cpu_data->dcache.entry_shift);
-
-					if ((cache_asid == mm_asid) && (start <= epn) && (epn < end)) {
-						/* TODO : could optimise this
-						   call by batching multiple
-						   adjacent sets together. */
-						sh64_dcache_purge_sets(set, 1);
-						break; /* Don't waste time inspecting other ways for this set */
-					}
-				}
-			}
-		}
-#endif
-	} else {
-		/* Small range, covered by a single page table page */
-		start &= PAGE_MASK;	/* should already be so */
-		end = PAGE_ALIGN(end);	/* should already be so */
-		sh64_dcache_purge_user_pages(mm, start, end);
-	}
-	return;
-}
-
-static void sh64_dcache_wback_current_user_range(unsigned long start, unsigned long end)
-{
-	unsigned long long aligned_start;
-	unsigned long long ull_end;
-	unsigned long long addr;
-
-	ull_end = end;
-
-	/* Just wback over the range using the natural addresses.  TLB miss
-	   handling will be OK (TBC) : the range has just been written to by
-	   the signal frame setup code, so the PTEs must exist.
-
-	   Note, if we have CONFIG_PREEMPT and get preempted inside this loop,
-	   it doesn't matter, even if the pid->ASID mapping changes whilst
-	   we're away.  In that case the cache will have been flushed when the
-	   mapping was renewed.  So the writebacks below will be nugatory (and
-	   we'll doubtless have to fault the TLB entry/ies in again with the
-	   new ASID), but it's a rare case.
-	   */
-	aligned_start = start & L1_CACHE_ALIGN_MASK;
-	addr = aligned_start;
-	while (addr < ull_end) {
-		asm __volatile__ ("ocbwb %0, 0" : : "r" (addr));
-		addr += L1_CACHE_BYTES;
-	}
-}
-
-/****************************************************************************/
-
-/* These *MUST* lie in an area of virtual address space that's otherwise unused. */
-#define UNIQUE_EADDR_START 0xe0000000UL
-#define UNIQUE_EADDR_END   0xe8000000UL
-
-static unsigned long sh64_make_unique_eaddr(unsigned long user_eaddr, unsigned long paddr)
-{
-	/* Given a physical address paddr, and a user virtual address
-	   user_eaddr which will eventually be mapped to it, create a one-off
-	   kernel-private eaddr mapped to the same paddr.  This is used for
-	   creating special destination pages for copy_user_page and
-	   clear_user_page */
-
-	static unsigned long current_pointer = UNIQUE_EADDR_START;
-	unsigned long coloured_pointer;
-
-	if (current_pointer == UNIQUE_EADDR_END) {
-		sh64_dcache_purge_all();
-		current_pointer = UNIQUE_EADDR_START;
-	}
-
-	coloured_pointer = (current_pointer & ~CACHE_OC_SYN_MASK) | (user_eaddr & CACHE_OC_SYN_MASK);
-	sh64_setup_dtlb_cache_slot(coloured_pointer, get_asid(), paddr);
-
-	current_pointer += (PAGE_SIZE << CACHE_OC_N_SYNBITS);
-
-	return coloured_pointer;
-}
-
-/****************************************************************************/
-
-static void sh64_copy_user_page_coloured(void *to, void *from, unsigned long address)
-{
-	void *coloured_to;
-
-	/* Discard any existing cache entries of the wrong colour.  These are
-	   present quite often, if the kernel has recently used the page
-	   internally, then given it up, then it's been allocated to the user.
-	   */
-	sh64_dcache_purge_coloured_phy_page(__pa(to), (unsigned long) to);
-
-	coloured_to = (void *) sh64_make_unique_eaddr(address, __pa(to));
-	sh64_page_copy(from, coloured_to);
-
-	sh64_teardown_dtlb_cache_slot();
-}
-
-static void sh64_clear_user_page_coloured(void *to, unsigned long address)
-{
-	void *coloured_to;
-
-	/* Discard any existing kernel-originated lines of the wrong colour (as
-	   above) */
-	sh64_dcache_purge_coloured_phy_page(__pa(to), (unsigned long) to);
-
-	coloured_to = (void *) sh64_make_unique_eaddr(address, __pa(to));
-	sh64_page_clear(coloured_to);
-
-	sh64_teardown_dtlb_cache_slot();
-}
-
-#endif /* !CONFIG_DCACHE_DISABLED */
-
-/****************************************************************************/
-
-/*##########################################################################
-			    EXTERNALLY CALLABLE API.
-  ##########################################################################*/
-
-/* These functions are described in Documentation/cachetlb.txt.
-   Each one of these functions varies in behaviour depending on whether the
-   I-cache and/or D-cache are configured out.
-
-   Note that the Linux term 'flush' corresponds to what is termed 'purge' in
-   the sh/sh64 jargon for the D-cache, i.e. write back dirty data then
-   invalidate the cache lines, and 'invalidate' for the I-cache.
-   */
-
-#undef FLUSH_TRACE
-
-void flush_cache_all(void)
-{
-	/* Invalidate the entire contents of both caches, after writing back to
-	   memory any dirty data from the D-cache. */
-	sh64_dcache_purge_all();
-	sh64_icache_inv_all();
-}
-
-/****************************************************************************/
-
-void flush_cache_mm(struct mm_struct *mm)
-{
-	/* Invalidate an entire user-address space from both caches, after
-	   writing back dirty data (e.g. for shared mmap etc). */
-
-	/* This could be coded selectively by inspecting all the tags then
-	   doing 4*alloco on any set containing a match (as for
-	   flush_cache_range), but fork/exit/execve (where this is called from)
-	   are expensive anyway. */
-
-	/* Have to do a purge here, despite the comments re I-cache below.
-	   There could be odd-coloured dirty data associated with the mm still
-	   in the cache - if this gets written out through natural eviction
-	   after the kernel has reused the page there will be chaos.
-	   */
-
-	sh64_dcache_purge_all();
-
-	/* The mm being torn down won't ever be active again, so any Icache
-	   lines tagged with its ASID won't be visible for the rest of the
-	   lifetime of this ASID cycle.  Before the ASID gets reused, there
-	   will be a flush_cache_all.  Hence we don't need to touch the
-	   I-cache.  This is similar to the lack of action needed in
-	   flush_tlb_mm - see fault.c. */
-}
-
-/****************************************************************************/
-
-void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
-		       unsigned long end)
-{
-	struct mm_struct *mm = vma->vm_mm;
-
-	/* Invalidate (from both caches) the range [start,end) of virtual
-	   addresses from the user address space specified by mm, after writing
-	   back any dirty data.
-
-	   Note, 'end' is 1 byte beyond the end of the range to flush. */
-
-	sh64_dcache_purge_user_range(mm, start, end);
-	sh64_icache_inv_user_page_range(mm, start, end);
-}
-
-/****************************************************************************/
-
-void flush_cache_page(struct vm_area_struct *vma, unsigned long eaddr, unsigned long pfn)
-{
-	/* Invalidate any entries in either cache for the vma within the user
-	   address space vma->vm_mm for the page starting at virtual address
-	   'eaddr'.   This seems to be used primarily in breaking COW.  Note,
-	   the I-cache must be searched too in case the page in question is
-	   both writable and being executed from (e.g. stack trampolines.)
-
-	   Note, this is called with pte lock held.
-	   */
-
-	sh64_dcache_purge_phy_page(pfn << PAGE_SHIFT);
-
-	if (vma->vm_flags & VM_EXEC) {
-		sh64_icache_inv_user_page(vma, eaddr);
-	}
-}
-
-/****************************************************************************/
-
-#ifndef CONFIG_DCACHE_DISABLED
-
-void copy_user_page(void *to, void *from, unsigned long address, struct page *page)
-{
-	/* 'from' and 'to' are kernel virtual addresses (within the superpage
-	   mapping of the physical RAM).  'address' is the user virtual address
-	   where the copy 'to' will be mapped after.  This allows a custom
-	   mapping to be used to ensure that the new copy is placed in the
-	   right cache sets for the user to see it without having to bounce it
-	   out via memory.  Note however : the call to flush_page_to_ram in
-	   (generic)/mm/memory.c:(break_cow) undoes all this good work in that one
-	   very important case!
-
-	   TBD : can we guarantee that on every call, any cache entries for
-	   'from' are in the same colour sets as 'address' also?  i.e. is this
-	   always used just to deal with COW?  (I suspect not). */
-
-	/* There are two possibilities here for when the page 'from' was last accessed:
-	   * by the kernel : this is OK, no purge required.
-	   * by the/a user (e.g. for break_COW) : need to purge.
-
-	   If the potential user mapping at 'address' is the same colour as
-	   'from' there is no need to purge any cache lines from the 'from'
-	   page mapped into cache sets of colour 'address'.  (The copy will be
-	   accessing the page through 'from').
-	   */
-
-	if (((address ^ (unsigned long) from) & CACHE_OC_SYN_MASK) != 0) {
-		sh64_dcache_purge_coloured_phy_page(__pa(from), address);
-	}
-
-	if (((address ^ (unsigned long) to) & CACHE_OC_SYN_MASK) == 0) {
-		/* No synonym problem on destination */
-		sh64_page_copy(from, to);
-	} else {
-		sh64_copy_user_page_coloured(to, from, address);
-	}
-
-	/* Note, don't need to flush 'from' page from the cache again - it's
-	   done anyway by the generic code */
-}
-
-void clear_user_page(void *to, unsigned long address, struct page *page)
-{
-	/* 'to' is a kernel virtual address (within the superpage
-	   mapping of the physical RAM).  'address' is the user virtual address
-	   where the 'to' page will be mapped after.  This allows a custom
-	   mapping to be used to ensure that the new copy is placed in the
-	   right cache sets for the user to see it without having to bounce it
-	   out via memory.
-	*/
-
-	if (((address ^ (unsigned long) to) & CACHE_OC_SYN_MASK) == 0) {
-		/* No synonym problem on destination */
-		sh64_page_clear(to);
-	} else {
-		sh64_clear_user_page_coloured(to, address);
-	}
-}
-
-#endif /* !CONFIG_DCACHE_DISABLED */
-
-/****************************************************************************/
-
-void flush_dcache_page(struct page *page)
-{
-	sh64_dcache_purge_phy_page(page_to_phys(page));
-	wmb();
-}
-
-/****************************************************************************/
-
-void flush_icache_range(unsigned long start, unsigned long end)
-{
-	/* Flush the range [start,end] of kernel virtual adddress space from
-	   the I-cache.  The corresponding range must be purged from the
-	   D-cache also because the SH-5 doesn't have cache snooping between
-	   the caches.  The addresses will be visible through the superpage
-	   mapping, therefore it's guaranteed that there no cache entries for
-	   the range in cache sets of the wrong colour.
-
-	   Primarily used for cohering the I-cache after a module has
-	   been loaded.  */
-
-	/* We also make sure to purge the same range from the D-cache since
-	   flush_page_to_ram() won't be doing this for us! */
-
-	sh64_dcache_purge_kernel_range(start, end);
-	wmb();
-	sh64_icache_inv_kernel_range(start, end);
-}
-
-/****************************************************************************/
-
-void flush_icache_user_range(struct vm_area_struct *vma,
-			struct page *page, unsigned long addr, int len)
-{
-	/* Flush the range of user (defined by vma->vm_mm) address space
-	   starting at 'addr' for 'len' bytes from the cache.  The range does
-	   not straddle a page boundary, the unique physical page containing
-	   the range is 'page'.  This seems to be used mainly for invalidating
-	   an address range following a poke into the program text through the
-	   ptrace() call from another process (e.g. for BRK instruction
-	   insertion). */
-
-	sh64_dcache_purge_coloured_phy_page(page_to_phys(page), addr);
-	mb();
-
-	if (vma->vm_flags & VM_EXEC) {
-		sh64_icache_inv_user_small_range(vma->vm_mm, addr, len);
-	}
-}
-
-/*##########################################################################
-			ARCH/SH64 PRIVATE CALLABLE API.
-  ##########################################################################*/
-
-void flush_cache_sigtramp(unsigned long start, unsigned long end)
-{
-	/* For the address range [start,end), write back the data from the
-	   D-cache and invalidate the corresponding region of the I-cache for
-	   the current process.  Used to flush signal trampolines on the stack
-	   to make them executable. */
-
-	sh64_dcache_wback_current_user_range(start, end);
-	wmb();
-	sh64_icache_inv_current_user_range(start, end);
-}
-
diff --git a/arch/sh64/mm/tlb.c b/arch/sh64/mm/tlb.c
deleted file mode 100644
index d517e7d70340..000000000000
--- a/arch/sh64/mm/tlb.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * arch/sh64/mm/tlb.c
- *
- * Copyright (C) 2003  Paul Mundt <lethal@linux-sh.org>
- * Copyright (C) 2003  Richard Curnow <richard.curnow@superh.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <asm/page.h>
-#include <asm/tlb.h>
-#include <asm/mmu_context.h>
-
-/**
- * sh64_tlb_init
- *
- * Perform initial setup for the DTLB and ITLB.
- */
-int __init sh64_tlb_init(void)
-{
-	/* Assign some sane DTLB defaults */
-	cpu_data->dtlb.entries	= 64;
-	cpu_data->dtlb.step	= 0x10;
-
-	cpu_data->dtlb.first	= DTLB_FIXED | cpu_data->dtlb.step;
-	cpu_data->dtlb.next	= cpu_data->dtlb.first;
-
-	cpu_data->dtlb.last	= DTLB_FIXED |
-				  ((cpu_data->dtlb.entries - 1) *
-				   cpu_data->dtlb.step);
-
-	/* And again for the ITLB */
-	cpu_data->itlb.entries	= 64;
-	cpu_data->itlb.step	= 0x10;
-
-	cpu_data->itlb.first	= ITLB_FIXED | cpu_data->itlb.step;
-	cpu_data->itlb.next	= cpu_data->itlb.first;
-	cpu_data->itlb.last	= ITLB_FIXED |
-				  ((cpu_data->itlb.entries - 1) *
-				   cpu_data->itlb.step);
-
-	return 0;
-}
-
-/**
- * sh64_next_free_dtlb_entry
- *
- * Find the next available DTLB entry
- */
-unsigned long long sh64_next_free_dtlb_entry(void)
-{
-	return cpu_data->dtlb.next;
-}
-
-/**
- * sh64_get_wired_dtlb_entry
- *
- * Allocate a wired (locked-in) entry in the DTLB
- */
-unsigned long long sh64_get_wired_dtlb_entry(void)
-{
-	unsigned long long entry = sh64_next_free_dtlb_entry();
-
-	cpu_data->dtlb.first += cpu_data->dtlb.step;
-	cpu_data->dtlb.next  += cpu_data->dtlb.step;
-
-	return entry;
-}
-
-/**
- * sh64_put_wired_dtlb_entry
- *
- * @entry:	Address of TLB slot.
- *
- * Free a wired (locked-in) entry in the DTLB.
- *
- * Works like a stack, last one to allocate must be first one to free.
- */
-int sh64_put_wired_dtlb_entry(unsigned long long entry)
-{
-	__flush_tlb_slot(entry);
-
-	/*
-	 * We don't do any particularly useful tracking of wired entries,
-	 * so this approach works like a stack .. last one to be allocated
-	 * has to be the first one to be freed.
-	 *
-	 * We could potentially load wired entries into a list and work on
-	 * rebalancing the list periodically (which also entails moving the
-	 * contents of a TLB entry) .. though I have a feeling that this is
-	 * more trouble than it's worth.
-	 */
-
-	/*
-	 * Entry must be valid .. we don't want any ITLB addresses!
-	 */
-	if (entry <= DTLB_FIXED)
-		return -EINVAL;
-
-	/*
-	 * Next, check if we're within range to be freed. (ie, must be the
-	 * entry beneath the first 'free' entry!
-	 */
-	if (entry < (cpu_data->dtlb.first - cpu_data->dtlb.step))
-		return -EINVAL;
-
-	/* If we are, then bring this entry back into the list */
-	cpu_data->dtlb.first	-= cpu_data->dtlb.step;
-	cpu_data->dtlb.next	= entry;
-
-	return 0;
-}
-
-/**
- * sh64_setup_tlb_slot
- *
- * @config_addr:	Address of TLB slot.
- * @eaddr:		Virtual address.
- * @asid:		Address Space Identifier.
- * @paddr:		Physical address.
- *
- * Load up a virtual<->physical translation for @eaddr<->@paddr in the
- * pre-allocated TLB slot @config_addr (see sh64_get_wired_dtlb_entry).
- */
-inline void sh64_setup_tlb_slot(unsigned long long config_addr,
-				unsigned long eaddr,
-				unsigned long asid,
-				unsigned long paddr)
-{
-	unsigned long long pteh, ptel;
-
-	/* Sign extension */
-#if (NEFF == 32)
-	pteh = (unsigned long long)(signed long long)(signed long) eaddr;
-#else
-#error "Can't sign extend more than 32 bits yet"
-#endif
-	pteh &= PAGE_MASK;
-	pteh |= (asid << PTEH_ASID_SHIFT) | PTEH_VALID;
-#if (NEFF == 32)
-	ptel = (unsigned long long)(signed long long)(signed long) paddr;
-#else
-#error "Can't sign extend more than 32 bits yet"
-#endif
-	ptel &= PAGE_MASK;
-	ptel |= (_PAGE_CACHABLE | _PAGE_READ | _PAGE_WRITE);
-
-	asm volatile("putcfg %0, 1, %1\n\t"
-			"putcfg %0, 0, %2\n"
-			: : "r" (config_addr), "r" (ptel), "r" (pteh));
-}
-
-/**
- * sh64_teardown_tlb_slot
- *
- * @config_addr:	Address of TLB slot.
- *
- * Teardown any existing mapping in the TLB slot @config_addr.
- */
-inline void sh64_teardown_tlb_slot(unsigned long long config_addr)
-	__attribute__ ((alias("__flush_tlb_slot")));
-
-- 
cgit v1.2.3-59-g8ed1b


From df0fb2562806e853e53de43af04f013c3e45427b Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 17:07:46 +0900
Subject: sh: Fix up proc ASIDs for CPU-local ASID cache accessors.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/process_64.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index 92d01465eb87..2dd97eecb44c 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -27,6 +27,7 @@
 #include <linux/io.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
+#include <asm/mmu_context.h>
 
 struct task_struct *last_task_used_math = NULL;
 
@@ -674,17 +675,14 @@ asids_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, void
 	read_lock(&tasklist_lock);
 	for_each_process(p) {
 		int pid = p->pid;
-		struct mm_struct *mm;
-		if (!pid) continue;
-		mm = p->mm;
-		if (mm) {
-			unsigned long asid, context;
-			context = mm->context;
-			asid = (context & 0xff);
-			len += sprintf(buf+len, "%5d : %02lx\n", pid, asid);
-		} else {
+
+		if (!pid)
+			continue;
+		if (p->mm)
+			len += sprintf(buf+len, "%5d : %02lx\n", pid,
+				       asid_cache(smp_processor_id()));
+		else
 			len += sprintf(buf+len, "%5d : (none)\n", pid);
-		}
 	}
 	read_unlock(&tasklist_lock);
 	*eof = 1;
-- 
cgit v1.2.3-59-g8ed1b


From e150e7f25f7e3878cf2230193a5c708d99b9971e Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 17:09:14 +0900
Subject: sh: Kill off arch/sh64/mm.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh64/mm/Makefile      |  44 -----------
 arch/sh64/mm/consistent.c  |  53 -------------
 arch/sh64/mm/hugetlbpage.c | 105 -------------------------
 arch/sh64/mm/init.c        | 189 ---------------------------------------------
 4 files changed, 391 deletions(-)
 delete mode 100644 arch/sh64/mm/Makefile
 delete mode 100644 arch/sh64/mm/consistent.c
 delete mode 100644 arch/sh64/mm/hugetlbpage.c
 delete mode 100644 arch/sh64/mm/init.c

(limited to 'arch')

diff --git a/arch/sh64/mm/Makefile b/arch/sh64/mm/Makefile
deleted file mode 100644
index d0e813632480..000000000000
--- a/arch/sh64/mm/Makefile
+++ /dev/null
@@ -1,44 +0,0 @@
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2000, 2001  Paolo Alberelli
-# Copyright (C) 2003, 2004  Paul Mundt
-#
-# Makefile for the sh64-specific parts of the Linux memory manager.
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-obj-y := cache.o consistent.o extable.o fault.o init.o ioremap.o \
-	 tlbmiss.o tlb.o
-
-obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o
-
-# Special flags for tlbmiss.o.  This puts restrictions on the number of
-# caller-save registers that the compiler can target when building this file.
-# This is required because the code is called from a context in entry.S where
-# very few registers have been saved in the exception handler (for speed
-# reasons).
-# The caller save registers that have been saved and which can be used are
-# r2,r3,r4,r5 : argument passing
-# r15, r18 : SP and LINK
-# tr0-4 : allow all caller-save TR's.  The compiler seems to be able to make
-#         use of them, so it's probably beneficial to performance to save them
-#         and have them available for it.
-#
-# The resources not listed below are callee save, i.e. the compiler is free to
-# use any of them and will spill them to the stack itself.
-
-CFLAGS_tlbmiss.o += -ffixed-r7 \
-	-ffixed-r8 -ffixed-r9 -ffixed-r10 -ffixed-r11 -ffixed-r12 \
-	-ffixed-r13 -ffixed-r14 -ffixed-r16 -ffixed-r17 -ffixed-r19 \
-	-ffixed-r20 -ffixed-r21 -ffixed-r22 -ffixed-r23 \
-	-ffixed-r24 -ffixed-r25 -ffixed-r26 -ffixed-r27 \
-	-ffixed-r36 -ffixed-r37 -ffixed-r38 -ffixed-r39 -ffixed-r40 \
-	-ffixed-r41 -ffixed-r42 -ffixed-r43  \
-	-ffixed-r60 -ffixed-r61 -ffixed-r62 \
-	-fomit-frame-pointer
diff --git a/arch/sh64/mm/consistent.c b/arch/sh64/mm/consistent.c
deleted file mode 100644
index c439620402cb..000000000000
--- a/arch/sh64/mm/consistent.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
- * Copyright (C) 2003 Paul Mundt (lethal@linux-sh.org)
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.
- *
- * Dynamic DMA mapping support.
- */
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/module.h>
-#include <asm/io.h>
-
-void *consistent_alloc(struct pci_dev *hwdev, size_t size,
-			   dma_addr_t *dma_handle)
-{
-	void *ret;
-	int gfp = GFP_ATOMIC;
-        void *vp;
-
-	if (hwdev == NULL || hwdev->dma_mask != 0xffffffff)
-		gfp |= GFP_DMA;
-
-	ret = (void *)__get_free_pages(gfp, get_order(size));
-
-	/* now call our friend ioremap_nocache to give us an uncached area */
-        vp = ioremap_nocache(virt_to_phys(ret), size);
-
-	if (vp != NULL) {
-		memset(vp, 0, size);
-		*dma_handle = virt_to_phys(ret);
-		dma_cache_sync(NULL, ret, size, DMA_BIDIRECTIONAL);
-	}
-
-	return vp;
-}
-EXPORT_SYMBOL(consistent_alloc);
-
-void consistent_free(struct pci_dev *hwdev, size_t size,
-			 void *vaddr, dma_addr_t dma_handle)
-{
-	void *alloc;
-
-	alloc = phys_to_virt((unsigned long)dma_handle);
-	free_pages((unsigned long)alloc, get_order(size));
-
-	iounmap(vaddr);
-}
-EXPORT_SYMBOL(consistent_free);
diff --git a/arch/sh64/mm/hugetlbpage.c b/arch/sh64/mm/hugetlbpage.c
deleted file mode 100644
index fa66daa2dfa9..000000000000
--- a/arch/sh64/mm/hugetlbpage.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * arch/sh64/mm/hugetlbpage.c
- *
- * SuperH HugeTLB page support.
- *
- * Cloned from sparc64 by Paul Mundt.
- *
- * Copyright (C) 2002, 2003 David S. Miller (davem@redhat.com)
- */
-
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/hugetlb.h>
-#include <linux/pagemap.h>
-#include <linux/slab.h>
-#include <linux/sysctl.h>
-
-#include <asm/mman.h>
-#include <asm/pgalloc.h>
-#include <asm/tlb.h>
-#include <asm/tlbflush.h>
-#include <asm/cacheflush.h>
-
-pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
-{
-	pgd_t *pgd;
-	pmd_t *pmd;
-	pte_t *pte = NULL;
-
-	pgd = pgd_offset(mm, addr);
-	if (pgd) {
-		pmd = pmd_alloc(mm, pgd, addr);
-		if (pmd)
-			pte = pte_alloc_map(mm, pmd, addr);
-	}
-	return pte;
-}
-
-pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
-{
-	pgd_t *pgd;
-	pmd_t *pmd;
-	pte_t *pte = NULL;
-
-	pgd = pgd_offset(mm, addr);
-	if (pgd) {
-		pmd = pmd_offset(pgd, addr);
-		if (pmd)
-			pte = pte_offset_map(pmd, addr);
-	}
-	return pte;
-}
-
-int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep)
-{
-	return 0;
-}
-
-void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-		     pte_t *ptep, pte_t entry)
-{
-	int i;
-
-	for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
-		set_pte_at(mm, addr, ptep, entry);
-		ptep++;
-		addr += PAGE_SIZE;
-		pte_val(entry) += PAGE_SIZE;
-	}
-}
-
-pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
-			      pte_t *ptep)
-{
-	pte_t entry;
-	int i;
-
-	entry = *ptep;
-
-	for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
-		pte_clear(mm, addr, ptep);
-		addr += PAGE_SIZE;
-		ptep++;
-	}
-
-	return entry;
-}
-
-struct page *follow_huge_addr(struct mm_struct *mm,
-			      unsigned long address, int write)
-{
-	return ERR_PTR(-EINVAL);
-}
-
-int pmd_huge(pmd_t pmd)
-{
-	return 0;
-}
-
-struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address,
-			     pmd_t *pmd, int write)
-{
-	return NULL;
-}
diff --git a/arch/sh64/mm/init.c b/arch/sh64/mm/init.c
deleted file mode 100644
index 21cf42de23e2..000000000000
--- a/arch/sh64/mm/init.c
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/init.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003, 2004  Paul Mundt
- *
- */
-
-#include <linux/init.h>
-#include <linux/rwsem.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/bootmem.h>
-
-#include <asm/mmu_context.h>
-#include <asm/page.h>
-#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
-#include <asm/tlb.h>
-
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
-/*
- * Cache of MMU context last used.
- */
-unsigned long mmu_context_cache;
-pgd_t * mmu_pdtp_cache;
-int after_bootmem = 0;
-
-/*
- * BAD_PAGE is the page that is used for page faults when linux
- * is out-of-memory. Older versions of linux just did a
- * do_exit(), but using this instead means there is less risk
- * for a process dying in kernel mode, possibly leaving an inode
- * unused etc..
- *
- * BAD_PAGETABLE is the accompanying page-table: it is initialized
- * to point to BAD_PAGE entries.
- *
- * ZERO_PAGE is a special page that is used for zero-initialized
- * data and COW.
- */
-
-extern unsigned char empty_zero_page[PAGE_SIZE];
-extern unsigned char empty_bad_page[PAGE_SIZE];
-extern pte_t empty_bad_pte_table[PTRS_PER_PTE];
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-
-extern char _text, _etext, _edata, __bss_start, _end;
-extern char __init_begin, __init_end;
-
-/* It'd be good if these lines were in the standard header file. */
-#define START_PFN	(NODE_DATA(0)->bdata->node_boot_start >> PAGE_SHIFT)
-#define MAX_LOW_PFN	(NODE_DATA(0)->bdata->node_low_pfn)
-
-
-void show_mem(void)
-{
-	int i, total = 0, reserved = 0;
-	int shared = 0, cached = 0;
-
-	printk("Mem-info:\n");
-	show_free_areas();
-	printk("Free swap:       %6ldkB\n",nr_swap_pages<<(PAGE_SHIFT-10));
-	i = max_mapnr;
-	while (i-- > 0) {
-		total++;
-		if (PageReserved(mem_map+i))
-			reserved++;
-		else if (PageSwapCache(mem_map+i))
-			cached++;
-		else if (page_count(mem_map+i))
-			shared += page_count(mem_map+i) - 1;
-	}
-	printk("%d pages of RAM\n",total);
-	printk("%d reserved pages\n",reserved);
-	printk("%d pages shared\n",shared);
-	printk("%d pages swap cached\n",cached);
-	printk("%ld pages in page table cache\n", quicklist_total_size());
-}
-
-/*
- * paging_init() sets up the page tables.
- *
- * head.S already did a lot to set up address translation for the kernel.
- * Here we comes with:
- * . MMU enabled
- * . ASID set (SR)
- * .  some 512MB regions being mapped of which the most relevant here is:
- *   . CACHED segment (ASID 0 [irrelevant], shared AND NOT user)
- * . possible variable length regions being mapped as:
- *   . UNCACHED segment (ASID 0 [irrelevant], shared AND NOT user)
- * . All of the memory regions are placed, independently from the platform
- *   on high addresses, above 0x80000000.
- * . swapper_pg_dir is already cleared out by the .space directive
- *   in any case swapper does not require a real page directory since
- *   it's all kernel contained.
- *
- * Those pesky NULL-reference errors in the kernel are then
- * dealt with by not mapping address 0x00000000 at all.
- *
- */
-void __init paging_init(void)
-{
-	unsigned long zones_size[MAX_NR_ZONES] = {0, };
-
-	pgd_init((unsigned long)swapper_pg_dir);
-	pgd_init((unsigned long)swapper_pg_dir +
-		 sizeof(pgd_t) * USER_PTRS_PER_PGD);
-
-	mmu_context_cache = MMU_CONTEXT_FIRST_VERSION;
-
-	zones_size[ZONE_NORMAL] = MAX_LOW_PFN - START_PFN;
-	NODE_DATA(0)->node_mem_map = NULL;
-	free_area_init_node(0, NODE_DATA(0), zones_size, __MEMORY_START >> PAGE_SHIFT, 0);
-}
-
-void __init mem_init(void)
-{
-	int codesize, reservedpages, datasize, initsize;
-	int tmp;
-
-	max_mapnr = num_physpages = MAX_LOW_PFN - START_PFN;
-	high_memory = (void *)__va(MAX_LOW_PFN * PAGE_SIZE);
-
-	/*
-         * Clear the zero-page.
-         * This is not required but we might want to re-use
-         * this very page to pass boot parameters, one day.
-         */
-	memset(empty_zero_page, 0, PAGE_SIZE);
-
-	/* this will put all low memory onto the freelists */
-	totalram_pages += free_all_bootmem_node(NODE_DATA(0));
-	reservedpages = 0;
-	for (tmp = 0; tmp < num_physpages; tmp++)
-		/*
-		 * Only count reserved RAM pages
-		 */
-		if (PageReserved(mem_map+tmp))
-			reservedpages++;
-
-	after_bootmem = 1;
-
-	codesize =  (unsigned long) &_etext - (unsigned long) &_text;
-	datasize =  (unsigned long) &_edata - (unsigned long) &_etext;
-	initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
-	printk("Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",
-		(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
-		max_mapnr << (PAGE_SHIFT-10),
-		codesize >> 10,
-		reservedpages << (PAGE_SHIFT-10),
-		datasize >> 10,
-		initsize >> 10);
-}
-
-void free_initmem(void)
-{
-	unsigned long addr;
-
-	addr = (unsigned long)(&__init_begin);
-	for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
-		ClearPageReserved(virt_to_page(addr));
-		init_page_count(virt_to_page(addr));
-		free_page(addr);
-		totalram_pages++;
-	}
-	printk ("Freeing unused kernel memory: %ldk freed\n", (&__init_end - &__init_begin) >> 10);
-}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	unsigned long p;
-	for (p = start; p < end; p += PAGE_SIZE) {
-		ClearPageReserved(virt_to_page(p));
-		init_page_count(virt_to_page(p));
-		free_page(p);
-		totalram_pages++;
-	}
-	printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
-}
-#endif
-
-- 
cgit v1.2.3-59-g8ed1b


From 5db141a9469c8446a179696bc7d374f4cd9b207a Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 17:47:15 +0900
Subject: sh: Mark some IRQ debug options sh32 only.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig.debug  |   4 +-
 arch/sh64/kernel/irq.c | 115 -------------------------------------------------
 2 files changed, 2 insertions(+), 117 deletions(-)
 delete mode 100644 arch/sh64/kernel/irq.c

(limited to 'arch')

diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index f9ce46f1e6ff..89bc174f25c7 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -62,7 +62,7 @@ config DEBUG_BOOTMEM
 
 config DEBUG_STACKOVERFLOW
 	bool "Check for stack overflows"
-	depends on DEBUG_KERNEL
+	depends on DEBUG_KERNEL && SUPERH32
 	help
 	  This option will cause messages to be printed if free stack space
 	  drops below a certain limit.
@@ -88,7 +88,7 @@ config 4KSTACKS
 
 config IRQSTACKS
 	bool "Use separate kernel stacks when processing interrupts"
-	depends on DEBUG_KERNEL
+	depends on DEBUG_KERNEL && SUPERH32
 	help
 	  If you say Y here the kernel will use separate kernel stacks
 	  for handling hard and soft interrupts.  This can help avoid
diff --git a/arch/sh64/kernel/irq.c b/arch/sh64/kernel/irq.c
deleted file mode 100644
index 9412b7166700..000000000000
--- a/arch/sh64/kernel/irq.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/irq.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003  Paul Mundt
- *
- */
-
-/*
- * IRQs are in fact implemented a bit like signal handlers for the kernel.
- * Naturally it's not a 1:1 relation, but there are similarities.
- */
-
-#include <linux/errno.h>
-#include <linux/kernel_stat.h>
-#include <linux/signal.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/timex.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-#include <linux/bitops.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <asm/pgalloc.h>
-#include <asm/delay.h>
-#include <asm/irq.h>
-#include <linux/irq.h>
-
-void ack_bad_irq(unsigned int irq)
-{
-	printk("unexpected IRQ trap at irq %02x\n", irq);
-}
-
-#if defined(CONFIG_PROC_FS)
-int show_interrupts(struct seq_file *p, void *v)
-{
-	int i = *(loff_t *) v, j;
-	struct irqaction * action;
-	unsigned long flags;
-
-	if (i == 0) {
-		seq_puts(p, "           ");
-		for_each_online_cpu(j)
-			seq_printf(p, "CPU%d       ",j);
-		seq_putc(p, '\n');
-	}
-
-	if (i < NR_IRQS) {
-		spin_lock_irqsave(&irq_desc[i].lock, flags);
-		action = irq_desc[i].action;
-		if (!action)
-			goto unlock;
-		seq_printf(p, "%3d: ",i);
-		seq_printf(p, "%10u ", kstat_irqs(i));
-		seq_printf(p, " %14s", irq_desc[i].chip->typename);
-		seq_printf(p, "  %s", action->name);
-
-		for (action=action->next; action; action = action->next)
-			seq_printf(p, ", %s", action->name);
-		seq_putc(p, '\n');
-unlock:
-		spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-	}
-	return 0;
-}
-#endif
-
-/*
- * do_NMI handles all Non-Maskable Interrupts.
- */
-asmlinkage void do_NMI(unsigned long vector_num, struct pt_regs * regs)
-{
-	if (regs->sr & 0x40000000)
-		printk("unexpected NMI trap in system mode\n");
-	else
-		printk("unexpected NMI trap in user mode\n");
-
-	/* No statistics */
-}
-
-/*
- * do_IRQ handles all normal device IRQ's.
- */
-asmlinkage int do_IRQ(unsigned long vector_num, struct pt_regs * regs)
-{
-	struct pt_regs *old_regs = set_irq_regs(regs);
-	int irq;
-
-	irq_enter();
-
-	irq = irq_demux(vector_num);
-
-	if (irq >= 0) {
-		__do_IRQ(irq);
-	} else {
-		printk("unexpected IRQ trap at vector %03lx\n", vector_num);
-	}
-
-	irq_exit();
-
-	set_irq_regs(old_regs);
-	return 1;
-}
-
-- 
cgit v1.2.3-59-g8ed1b


From fb8e569c1d4f44a4632e2db95a27ed45734d4705 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 17:55:12 +0900
Subject: sh: Fix up user_fpu_struct typo for SH-5.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh64/kernel/asm-offsets.c |  33 ----------
 arch/sh64/kernel/init_task.c   |  46 --------------
 arch/sh64/kernel/semaphore.c   | 140 -----------------------------------------
 include/asm-sh/user.h          |   2 +-
 4 files changed, 1 insertion(+), 220 deletions(-)
 delete mode 100644 arch/sh64/kernel/asm-offsets.c
 delete mode 100644 arch/sh64/kernel/init_task.c
 delete mode 100644 arch/sh64/kernel/semaphore.c

(limited to 'arch')

diff --git a/arch/sh64/kernel/asm-offsets.c b/arch/sh64/kernel/asm-offsets.c
deleted file mode 100644
index ca76537c16c0..000000000000
--- a/arch/sh64/kernel/asm-offsets.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * This program is used to generate definitions needed by
- * assembly language modules.
- *
- * We use the technique used in the OSF Mach kernel code:
- * generate asm statements containing #defines,
- * compile this file to assembler, and then extract the
- * #defines from the assembly-language output.
- */
-
-#include <linux/stddef.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <asm/thread_info.h>
-
-#define DEFINE(sym, val) \
-        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
-
-#define BLANK() asm volatile("\n->" : : )
-
-int main(void)
-{
-	/* offsets into the thread_info struct */
-	DEFINE(TI_TASK,		offsetof(struct thread_info, task));
-	DEFINE(TI_EXEC_DOMAIN,	offsetof(struct thread_info, exec_domain));
-	DEFINE(TI_FLAGS,	offsetof(struct thread_info, flags));
-	DEFINE(TI_PRE_COUNT,	offsetof(struct thread_info, preempt_count));
-	DEFINE(TI_CPU,		offsetof(struct thread_info, cpu));
-	DEFINE(TI_ADDR_LIMIT,	offsetof(struct thread_info, addr_limit));
-	DEFINE(TI_RESTART_BLOCK,offsetof(struct thread_info, restart_block));
-
-	return 0;
-}
diff --git a/arch/sh64/kernel/init_task.c b/arch/sh64/kernel/init_task.c
deleted file mode 100644
index deee8bfd3270..000000000000
--- a/arch/sh64/kernel/init_task.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/init_task.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003  Paul Mundt
- *
- */
-#include <linux/rwsem.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/init_task.h>
-#include <linux/mqueue.h>
-#include <linux/fs.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-static struct fs_struct init_fs = INIT_FS;
-static struct files_struct init_files = INIT_FILES;
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct mm_struct init_mm = INIT_MM(init_mm);
-
-struct pt_regs fake_swapper_regs;
-
-/*
- * Initial thread structure.
- *
- * We need to make sure that this is THREAD_SIZE-byte aligned due
- * to the way process stacks are handled. This is done by having a
- * special "init_task" linker map entry..
- */
-union thread_union init_thread_union
-	__attribute__((__section__(".data.init_task"))) =
-		{ INIT_THREAD_INFO(init_task) };
-
-/*
- * Initial task structure.
- *
- * All other task structs will be allocated on slabs in fork.c
- */
-struct task_struct init_task = INIT_TASK(init_task);
-
diff --git a/arch/sh64/kernel/semaphore.c b/arch/sh64/kernel/semaphore.c
deleted file mode 100644
index 72c16533436e..000000000000
--- a/arch/sh64/kernel/semaphore.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Just taken from alpha implementation.
- * This can't work well, perhaps.
- */
-/*
- *  Generic semaphore code. Buyer beware. Do your own
- * specific changes in <asm/semaphore-helper.h>
- */
-
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/wait.h>
-#include <linux/init.h>
-#include <asm/semaphore.h>
-#include <asm/semaphore-helper.h>
-
-spinlock_t semaphore_wake_lock;
-
-/*
- * Semaphores are implemented using a two-way counter:
- * The "count" variable is decremented for each process
- * that tries to sleep, while the "waking" variable is
- * incremented when the "up()" code goes to wake up waiting
- * processes.
- *
- * Notably, the inline "up()" and "down()" functions can
- * efficiently test if they need to do any extra work (up
- * needs to do something only if count was negative before
- * the increment operation.
- *
- * waking_non_zero() (from asm/semaphore.h) must execute
- * atomically.
- *
- * When __up() is called, the count was negative before
- * incrementing it, and we need to wake up somebody.
- *
- * This routine adds one to the count of processes that need to
- * wake up and exit.  ALL waiting processes actually wake up but
- * only the one that gets to the "waking" field first will gate
- * through and acquire the semaphore.  The others will go back
- * to sleep.
- *
- * Note that these functions are only called when there is
- * contention on the lock, and as such all this is the
- * "non-critical" part of the whole semaphore business. The
- * critical part is the inline stuff in <asm/semaphore.h>
- * where we want to avoid any extra jumps and calls.
- */
-void __up(struct semaphore *sem)
-{
-	wake_one_more(sem);
-	wake_up(&sem->wait);
-}
-
-/*
- * Perform the "down" function.  Return zero for semaphore acquired,
- * return negative for signalled out of the function.
- *
- * If called from __down, the return is ignored and the wait loop is
- * not interruptible.  This means that a task waiting on a semaphore
- * using "down()" cannot be killed until someone does an "up()" on
- * the semaphore.
- *
- * If called from __down_interruptible, the return value gets checked
- * upon return.  If the return value is negative then the task continues
- * with the negative value in the return register (it can be tested by
- * the caller).
- *
- * Either form may be used in conjunction with "up()".
- *
- */
-
-#define DOWN_VAR				\
-	struct task_struct *tsk = current;	\
-	wait_queue_t wait;			\
-	init_waitqueue_entry(&wait, tsk);
-
-#define DOWN_HEAD(task_state)						\
-									\
-									\
-	tsk->state = (task_state);					\
-	add_wait_queue(&sem->wait, &wait);				\
-									\
-	/*								\
-	 * Ok, we're set up.  sem->count is known to be less than zero	\
-	 * so we must wait.						\
-	 *								\
-	 * We can let go the lock for purposes of waiting.		\
-	 * We re-acquire it after awaking so as to protect		\
-	 * all semaphore operations.					\
-	 *								\
-	 * If "up()" is called before we call waking_non_zero() then	\
-	 * we will catch it right away.  If it is called later then	\
-	 * we will have to go through a wakeup cycle to catch it.	\
-	 *								\
-	 * Multiple waiters contend for the semaphore lock to see	\
-	 * who gets to gate through and who has to wait some more.	\
-	 */								\
-	for (;;) {
-
-#define DOWN_TAIL(task_state)			\
-		tsk->state = (task_state);	\
-	}					\
-	tsk->state = TASK_RUNNING;		\
-	remove_wait_queue(&sem->wait, &wait);
-
-void __sched __down(struct semaphore * sem)
-{
-	DOWN_VAR
-	DOWN_HEAD(TASK_UNINTERRUPTIBLE)
-	if (waking_non_zero(sem))
-		break;
-	schedule();
-	DOWN_TAIL(TASK_UNINTERRUPTIBLE)
-}
-
-int __sched __down_interruptible(struct semaphore * sem)
-{
-	int ret = 0;
-	DOWN_VAR
-	DOWN_HEAD(TASK_INTERRUPTIBLE)
-
-	ret = waking_non_zero_interruptible(sem, tsk);
-	if (ret)
-	{
-		if (ret == 1)
-			/* ret != 0 only if we get interrupted -arca */
-			ret = 0;
-		break;
-	}
-	schedule();
-	DOWN_TAIL(TASK_INTERRUPTIBLE)
-	return ret;
-}
-
-int __down_trylock(struct semaphore * sem)
-{
-	return waking_non_zero_trylock(sem);
-}
diff --git a/include/asm-sh/user.h b/include/asm-sh/user.h
index 706b1c7baba9..1a4f43c75126 100644
--- a/include/asm-sh/user.h
+++ b/include/asm-sh/user.h
@@ -28,7 +28,7 @@
  */
 
 #if defined(__SH5__) || defined(CONFIG_CPU_SH5)
-struct user fpu_struct {
+struct user_fpu_struct {
 	unsigned long fp_regs[32];
 	unsigned int fpscr;
 };
-- 
cgit v1.2.3-59-g8ed1b


From 1e1ed39faec635b109ff8c516377310600623674 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 17:58:13 +0900
Subject: sh: Copy over special CFLAGS for SH-5 TLB miss.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/Makefile_64 | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'arch')

diff --git a/arch/sh/mm/Makefile_64 b/arch/sh/mm/Makefile_64
index 5ff83583593e..2731cf1c4e0a 100644
--- a/arch/sh/mm/Makefile_64
+++ b/arch/sh/mm/Makefile_64
@@ -17,3 +17,28 @@ obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o
 obj-$(CONFIG_NUMA)		+= numa.o
 
 EXTRA_CFLAGS += -Werror
+
+# Special flags for fault_64.o.  This puts restrictions on the number of
+# caller-save registers that the compiler can target when building this file.
+# This is required because the code is called from a context in entry.S where
+# very few registers have been saved in the exception handler (for speed
+# reasons).
+# The caller save registers that have been saved and which can be used are
+# r2,r3,r4,r5 : argument passing
+# r15, r18 : SP and LINK
+# tr0-4 : allow all caller-save TR's.  The compiler seems to be able to make
+#         use of them, so it's probably beneficial to performance to save them
+#         and have them available for it.
+#
+# The resources not listed below are callee save, i.e. the compiler is free to
+# use any of them and will spill them to the stack itself.
+
+CFLAGS_fault_64.o += -ffixed-r7 \
+	-ffixed-r8 -ffixed-r9 -ffixed-r10 -ffixed-r11 -ffixed-r12 \
+	-ffixed-r13 -ffixed-r14 -ffixed-r16 -ffixed-r17 -ffixed-r19 \
+	-ffixed-r20 -ffixed-r21 -ffixed-r22 -ffixed-r23 \
+	-ffixed-r24 -ffixed-r25 -ffixed-r26 -ffixed-r27 \
+	-ffixed-r36 -ffixed-r37 -ffixed-r38 -ffixed-r39 -ffixed-r40 \
+	-ffixed-r41 -ffixed-r42 -ffixed-r43  \
+	-ffixed-r60 -ffixed-r61 -ffixed-r62 \
+	-fomit-frame-pointer
-- 
cgit v1.2.3-59-g8ed1b


From a82d53ec2424834521a5ec8bb661a27f968036ab Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 18:22:05 +0900
Subject: sh: Generic BUG only works for sh32.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 7cfd17230224..e406f1dbac84 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -32,7 +32,7 @@ config RWSEM_XCHGADD_ALGORITHM
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG
+	depends on BUG && SUPERH32
 
 config GENERIC_FIND_NEXT_BIT
 	bool
-- 
cgit v1.2.3-59-g8ed1b


From e2e96299a7c3257a6df36659414d1f6fbda53511 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 21:54:07 +0900
Subject: sh: Remove duplicate SUPERH64 symbol.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index e406f1dbac84..c0797b4aadbb 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -24,9 +24,6 @@ config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
 
-config SUPERH64
-	def_bool y if CPU_SH5
-
 config RWSEM_XCHGADD_ALGORITHM
 	bool
 
-- 
cgit v1.2.3-59-g8ed1b


From c2f1755becdc7c78ca07a516d358d9fa7a0a2707 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 22:13:34 +0900
Subject: sh: Tidy up KBUILD_IMAGE for sh64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Makefile | 29 ++++++++++++-----------------
 1 file changed, 12 insertions(+), 17 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index e08d4d27d8d6..3825e226dd64 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -1,17 +1,13 @@
-# $Id: Makefile,v 1.35 2004/04/15 03:39:20 sugioka Exp $
 #
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
+# arch/sh/Makefile
 #
 # Copyright (C) 1999  Kaz Kojima
 # Copyright (C) 2002, 2003, 2004  Paul Mundt
 # Copyright (C) 2002  M. R. Brown
 #
-# This file is included by the global makefile so that you can add your own
-# architecture-specific flags and dependencies. Remember to do have actions
-# for "archclean" and "archdep" for cleaning up and making dependencies for
-# this architecture
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
 #
 isa-y					:= any
 isa-$(CONFIG_SH_DSP)			:= sh
@@ -67,16 +63,15 @@ cflags-y	+= $(isaflags-y) -ffreestanding
 cflags-$(CONFIG_MORE_COMPILE_OPTIONS)	+= \
 	$(shell echo $(CONFIG_COMPILE_OPTIONS) | sed -e 's/"//g')
 
-OBJCOPYFLAGS	:= -O binary -R .note -R .note.gnu.build-id -R .comment -R .stab -R .stabstr -S
+OBJCOPYFLAGS	:= -O binary -R .note -R .note.gnu.build-id -R .comment \
+		   -R .stab -R .stabstr -S
 
-#
-# arch/sh/defconfig doesn't reflect any real hardware, and as such should
-# never be used by anyone. Use a board-specific defconfig that has a
-# reasonable chance of being current instead.
-#
-KBUILD_DEFCONFIG	:= r7780rp_defconfig
+# Give the various platforms the opportunity to set default image types
+defaultimage-$(CONFIG_SUPERH32)	:= arch/sh/boot/zImage
 
-KBUILD_IMAGE		:= arch/sh/boot/zImage
+# Set some sensible Kbuild defaults
+KBUILD_DEFCONFIG	:= r7780rp_defconfig
+KBUILD_IMAGE		:= $(defaultimage-y)
 
 #
 # Choosing incompatible machines durings configuration will result in
@@ -214,7 +209,7 @@ PHONY += maketools FORCE
 maketools:  include/linux/version.h FORCE
 	$(Q)$(MAKE) $(build)=arch/sh/tools include/asm-sh/machtypes.h
 
-all: zImage
+all: $(KBUILD_IMAGE)
 
 zImage uImage uImage.srec vmlinux.srec: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
-- 
cgit v1.2.3-59-g8ed1b


From d088f323574ea932a9bfc65302120e1526131887 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 22:28:28 +0900
Subject: sh: Consolidate sh/sh64 Makefiles.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Makefile   |  50 +++++++++++++++++++++---
 arch/sh64/Makefile | 111 -----------------------------------------------------
 2 files changed, 44 insertions(+), 117 deletions(-)
 delete mode 100644 arch/sh64/Makefile

(limited to 'arch')

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 3825e226dd64..afe4e6343248 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -139,6 +139,12 @@ core-y	+= $(addprefix arch/sh/boards/, \
 	     $(filter-out ., $(patsubst %,%/,$(machdir-y))))
 endif
 
+# SH-5 mach types
+# XXX.. to be reconciled with machdir-y later.
+core-$(CONFIG_SH_SIMULATOR)	+= arch/sh/mach-sim/
+core-$(CONFIG_SH_CAYMAN)	+= arch/sh/mach-cayman/
+core-$(CONFIG_SH_HARP)		+= arch/sh/mach-harp/
+
 # Companion chips
 core-$(CONFIG_HD6446X_SERIES)	+= arch/sh/cchips/hd6446x/
 core-$(CONFIG_MFD_SM501)	+= arch/sh/cchips/voyagergx/
@@ -203,9 +209,8 @@ include/asm-sh/.mach: $(wildcard include/config/sh/*.h) \
 	done
 	@touch $@
 
-archprepare: include/asm-sh/.cpu include/asm-sh/.mach maketools
-
 PHONY += maketools FORCE
+
 maketools:  include/linux/version.h FORCE
 	$(Q)$(MAKE) $(build)=arch/sh/tools include/asm-sh/machtypes.h
 
@@ -216,16 +221,49 @@ zImage uImage uImage.srec vmlinux.srec: vmlinux
 
 compressed: zImage
 
+archprepare: include/asm-sh/.cpu include/asm-sh/.mach maketools \
+	     arch/sh/lib64/syscalltab.h
+
 archclean:
 	$(Q)$(MAKE) $(clean)=$(boot)
 
-CLEAN_FILES += include/asm-sh/machtypes.h \
-	       include/asm-sh/cpu include/asm-sh/.cpu \
-	       include/asm-sh/mach include/asm-sh/.mach
-
 define archhelp
 	@echo '* zImage 	           - Compressed kernel image'
 	@echo '  vmlinux.srec	           - Create an ELF S-record'
 	@echo '  uImage  	           - Create a bootable image for U-Boot'
 	@echo '  uImage.srec  	           - Create an S-record for U-Boot'
 endef
+
+define filechk_gen-syscalltab
+       (set -e; \
+	echo "/*"; \
+	echo " * DO NOT MODIFY."; \
+	echo " *"; \
+	echo " * This file was generated by arch/sh/Makefile"; \
+	echo " * Any changes will be reverted at build time."; \
+	echo " */"; \
+	echo ""; \
+	echo "#ifndef __SYSCALLTAB_H"; \
+	echo "#define __SYSCALLTAB_H"; \
+	echo ""; \
+	echo "#include <linux/kernel.h>"; \
+	echo ""; \
+	echo "struct syscall_info {"; \
+	echo "	const char *name;"; \
+	echo "} syscall_info_table[] = {"; \
+	sed -e '/^.*\.long /!d;s//	{ "/;s/\(\([^/]*\)\/\)\{1\}.*/\2/; \
+		s/[ \t]*$$//g;s/$$/" },/;s/\("\)sys_/\1/g'; \
+	echo "};"; \
+	echo ""; \
+	echo "#define NUM_SYSCALL_INFO_ENTRIES ARRAY_SIZE(syscall_info_table)";\
+	echo ""; \
+	echo "#endif /* __SYSCALLTAB_H */" )
+endef
+
+arch/sh/lib64/syscalltab.h: arch/sh/kernel/syscalls_64.S
+	$(call filechk,gen-syscalltab)
+
+CLEAN_FILES += arch/sh/lib64/syscalltab.h \
+	       include/asm-sh/machtypes.h \
+	       include/asm-sh/cpu include/asm-sh/.cpu \
+	       include/asm-sh/mach include/asm-sh/.mach
diff --git a/arch/sh64/Makefile b/arch/sh64/Makefile
deleted file mode 100644
index 8dac7e1a2be6..000000000000
--- a/arch/sh64/Makefile
+++ /dev/null
@@ -1,111 +0,0 @@
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2000, 2001  Paolo Alberelli
-# Copyright (C) 2003, 2004  Paul Mundt
-#
-# This file is included by the global makefile so that you can add your own
-# architecture-specific flags and dependencies. Remember to do have actions
-# for "archclean" and "archdep" for cleaning up and making dependencies for
-# this architecture
-#
-
-cpu-y				:= -mb
-cpu-$(CONFIG_LITTLE_ENDIAN)	:= -ml
-
-cpu-$(CONFIG_CPU_SH5)		+= -m5-32media-nofpu
-
-ifdef CONFIG_LITTLE_ENDIAN
-LDFLAGS_vmlinux		+= --defsym 'jiffies=jiffies_64'
-LDFLAGS			+= -EL  -mshlelf32_linux
-else
-LDFLAGS_vmlinux		+= --defsym 'jiffies=jiffies_64+4'
-LDFLAGS			+= -EB  -mshelf32_linux
-endif
-
-# No requirements for endianess support from AFLAGS, 'as' always run through gcc
-KBUILD_CFLAGS		+= $(cpu-y)
-
-LDFLAGS_vmlinux	+= --defsym phys_stext=_stext-$(CONFIG_CACHED_MEMORY_OFFSET) \
-		  --defsym phys_stext_shmedia=phys_stext+1 \
-		  -e phys_stext_shmedia
-
-OBJCOPYFLAGS	:= -O binary -R .note -R .comment -R .stab -R .stabstr -S
-
-#
-# arch/sh64/defconfig never had any hope of being
-# frequently updated, so use one that does
-#
-KBUILD_DEFCONFIG	:= cayman_defconfig
-
-KBUILD_IMAGE		:= arch/$(ARCH)/boot/zImage
-
-ifdef LOADADDR
-LINKFLAGS     += -Ttext $(word 1,$(LOADADDR))
-endif
-
-machine-$(CONFIG_SH_CAYMAN)	:= cayman
-machine-$(CONFIG_SH_SIMULATOR)	:= sim
-machine-$(CONFIG_SH_HARP)	:= harp
-
-head-y := arch/$(ARCH)/kernel/head.o arch/$(ARCH)/kernel/init_task.o
-
-core-y	+= arch/sh64/kernel/ arch/sh64/mm/
-
-ifneq ($(machine-y),)
-core-y	+= arch/sh64/mach-$(machine-y)/
-endif
-
-LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
-libs-y	+= arch/$(ARCH)/lib/ $(LIBGCC)
-
-drivers-$(CONFIG_OPROFILE)	+= arch/sh64/oprofile/
-
-boot := arch/$(ARCH)/boot
-
-zImage: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
-
-compressed: zImage
-
-archclean:
-	$(Q)$(MAKE) $(clean)=$(boot)
-
-archprepare: arch/$(ARCH)/lib/syscalltab.h
-
-define filechk_gen-syscalltab
-       (set -e; \
-	echo "/*"; \
-	echo " * DO NOT MODIFY."; \
-	echo " *"; \
-	echo " * This file was generated by arch/$(ARCH)/Makefile"; \
-	echo " * Any changes will be reverted at build time."; \
-	echo " */"; \
-	echo ""; \
-	echo "#ifndef __SYSCALLTAB_H"; \
-	echo "#define __SYSCALLTAB_H"; \
-	echo ""; \
-	echo "#include <linux/kernel.h>"; \
-	echo ""; \
-	echo "struct syscall_info {"; \
-	echo "	const char *name;"; \
-	echo "} syscall_info_table[] = {"; \
-	sed -e '/^.*\.long /!d;s//    { "/;s/\(\([^/]*\)\/\)\{1\}.*/\2/; \
-		s/[ \t]*$$//g;s/$$/" },/;s/\("\)sys_/\1/g'; \
-	echo "};"; \
-	echo ""; \
-	echo "#define NUM_SYSCALL_INFO_ENTRIES	ARRAY_SIZE(syscall_info_table)"; \
-	echo ""; \
-	echo "#endif /* __SYSCALLTAB_H */" )
-endef
-
-arch/$(ARCH)/lib/syscalltab.h: arch/sh64/kernel/syscalls.S
-	$(call filechk,gen-syscalltab)
-
-CLEAN_FILES += arch/$(ARCH)/lib/syscalltab.h
-
-define archhelp
-	@echo '* zImage 	           - Compressed kernel image'
-endef
-- 
cgit v1.2.3-59-g8ed1b


From efddb4c882a64b7ca44b2a089d20020b30a2c6dd Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 22:30:58 +0900
Subject: sh: Rename the _32 and _64 TLB flush variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/Makefile_32    |   2 +-
 arch/sh/mm/Makefile_64    |   2 +-
 arch/sh/mm/tlb-flush_32.c | 140 --------------
 arch/sh/mm/tlb-flush_64.c | 475 ----------------------------------------------
 arch/sh/mm/tlbflush_32.c  | 140 ++++++++++++++
 arch/sh/mm/tlbflush_64.c  | 475 ++++++++++++++++++++++++++++++++++++++++++++++
 6 files changed, 617 insertions(+), 617 deletions(-)
 delete mode 100644 arch/sh/mm/tlb-flush_32.c
 delete mode 100644 arch/sh/mm/tlb-flush_64.c
 create mode 100644 arch/sh/mm/tlbflush_32.c
 create mode 100644 arch/sh/mm/tlbflush_64.c

(limited to 'arch')

diff --git a/arch/sh/mm/Makefile_32 b/arch/sh/mm/Makefile_32
index fc089c0cdbe9..095abd14592f 100644
--- a/arch/sh/mm/Makefile_32
+++ b/arch/sh/mm/Makefile_32
@@ -12,7 +12,7 @@ obj-$(CONFIG_SH7705_CACHE_32KB)	+= cache-sh7705.o
 endif
 
 mmu-y			:= tlb-nommu.o pg-nommu.o
-mmu-$(CONFIG_MMU)	:= fault_32.o clear_page.o copy_page.o tlb-flush_32.o \
+mmu-$(CONFIG_MMU)	:= fault_32.o clear_page.o copy_page.o tlbflush_32.o \
 			   ioremap_32.o
 
 obj-y			+= $(mmu-y)
diff --git a/arch/sh/mm/Makefile_64 b/arch/sh/mm/Makefile_64
index 2731cf1c4e0a..cbd6aa33c5ac 100644
--- a/arch/sh/mm/Makefile_64
+++ b/arch/sh/mm/Makefile_64
@@ -5,7 +5,7 @@
 obj-y			:= init.o extable_64.o consistent.o
 
 mmu-y			:= tlb-nommu.o pg-nommu.o
-mmu-$(CONFIG_MMU)	:= fault_64.o ioremap_64.o tlb-flush_64.o tlb-sh5.o
+mmu-$(CONFIG_MMU)	:= fault_64.o ioremap_64.o tlbflush_64.o tlb-sh5.o
 
 ifndef CONFIG_CACHE_OFF
 obj-y			+= cache-sh5.o
diff --git a/arch/sh/mm/tlb-flush_32.c b/arch/sh/mm/tlb-flush_32.c
deleted file mode 100644
index 6f45c1f8a7fe..000000000000
--- a/arch/sh/mm/tlb-flush_32.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * TLB flushing operations for SH with an MMU.
- *
- *  Copyright (C) 1999  Niibe Yutaka
- *  Copyright (C) 2003  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/mm.h>
-#include <asm/mmu_context.h>
-#include <asm/tlbflush.h>
-
-void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
-	unsigned int cpu = smp_processor_id();
-
-	if (vma->vm_mm && cpu_context(cpu, vma->vm_mm) != NO_CONTEXT) {
-		unsigned long flags;
-		unsigned long asid;
-		unsigned long saved_asid = MMU_NO_ASID;
-
-		asid = cpu_asid(cpu, vma->vm_mm);
-		page &= PAGE_MASK;
-
-		local_irq_save(flags);
-		if (vma->vm_mm != current->mm) {
-			saved_asid = get_asid();
-			set_asid(asid);
-		}
-		local_flush_tlb_one(asid, page);
-		if (saved_asid != MMU_NO_ASID)
-			set_asid(saved_asid);
-		local_irq_restore(flags);
-	}
-}
-
-void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
-			   unsigned long end)
-{
-	struct mm_struct *mm = vma->vm_mm;
-	unsigned int cpu = smp_processor_id();
-
-	if (cpu_context(cpu, mm) != NO_CONTEXT) {
-		unsigned long flags;
-		int size;
-
-		local_irq_save(flags);
-		size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
-		if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */
-			cpu_context(cpu, mm) = NO_CONTEXT;
-			if (mm == current->mm)
-				activate_context(mm, cpu);
-		} else {
-			unsigned long asid;
-			unsigned long saved_asid = MMU_NO_ASID;
-
-			asid = cpu_asid(cpu, mm);
-			start &= PAGE_MASK;
-			end += (PAGE_SIZE - 1);
-			end &= PAGE_MASK;
-			if (mm != current->mm) {
-				saved_asid = get_asid();
-				set_asid(asid);
-			}
-			while (start < end) {
-				local_flush_tlb_one(asid, start);
-				start += PAGE_SIZE;
-			}
-			if (saved_asid != MMU_NO_ASID)
-				set_asid(saved_asid);
-		}
-		local_irq_restore(flags);
-	}
-}
-
-void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
-	unsigned int cpu = smp_processor_id();
-	unsigned long flags;
-	int size;
-
-	local_irq_save(flags);
-	size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
-	if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */
-		local_flush_tlb_all();
-	} else {
-		unsigned long asid;
-		unsigned long saved_asid = get_asid();
-
-		asid = cpu_asid(cpu, &init_mm);
-		start &= PAGE_MASK;
-		end += (PAGE_SIZE - 1);
-		end &= PAGE_MASK;
-		set_asid(asid);
-		while (start < end) {
-			local_flush_tlb_one(asid, start);
-			start += PAGE_SIZE;
-		}
-		set_asid(saved_asid);
-	}
-	local_irq_restore(flags);
-}
-
-void local_flush_tlb_mm(struct mm_struct *mm)
-{
-	unsigned int cpu = smp_processor_id();
-
-	/* Invalidate all TLB of this process. */
-	/* Instead of invalidating each TLB, we get new MMU context. */
-	if (cpu_context(cpu, mm) != NO_CONTEXT) {
-		unsigned long flags;
-
-		local_irq_save(flags);
-		cpu_context(cpu, mm) = NO_CONTEXT;
-		if (mm == current->mm)
-			activate_context(mm, cpu);
-		local_irq_restore(flags);
-	}
-}
-
-void local_flush_tlb_all(void)
-{
-	unsigned long flags, status;
-
-	/*
-	 * Flush all the TLB.
-	 *
-	 * Write to the MMU control register's bit:
-	 *	TF-bit for SH-3, TI-bit for SH-4.
-	 *      It's same position, bit #2.
-	 */
-	local_irq_save(flags);
-	status = ctrl_inl(MMUCR);
-	status |= 0x04;
-	ctrl_outl(status, MMUCR);
-	ctrl_barrier();
-	local_irq_restore(flags);
-}
diff --git a/arch/sh/mm/tlb-flush_64.c b/arch/sh/mm/tlb-flush_64.c
deleted file mode 100644
index 2a98c9ec88ff..000000000000
--- a/arch/sh/mm/tlb-flush_64.c
+++ /dev/null
@@ -1,475 +0,0 @@
-/*
- * arch/sh/mm/tlb-flush_64.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003  Richard Curnow (/proc/tlb, bug fixes)
- * Copyright (C) 2003  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/signal.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/tlb.h>
-#include <asm/uaccess.h>
-#include <asm/pgalloc.h>
-#include <asm/mmu_context.h>
-
-extern void die(const char *,struct pt_regs *,long);
-
-#define PFLAG(val,flag)   (( (val) & (flag) ) ? #flag : "" )
-#define PPROT(flag) PFLAG(pgprot_val(prot),flag)
-
-static inline void print_prots(pgprot_t prot)
-{
-	printk("prot is 0x%08lx\n",pgprot_val(prot));
-
-	printk("%s %s %s %s %s\n",PPROT(_PAGE_SHARED),PPROT(_PAGE_READ),
-	       PPROT(_PAGE_EXECUTE),PPROT(_PAGE_WRITE),PPROT(_PAGE_USER));
-}
-
-static inline void print_vma(struct vm_area_struct *vma)
-{
-	printk("vma start 0x%08lx\n", vma->vm_start);
-	printk("vma end   0x%08lx\n", vma->vm_end);
-
-	print_prots(vma->vm_page_prot);
-	printk("vm_flags 0x%08lx\n", vma->vm_flags);
-}
-
-static inline void print_task(struct task_struct *tsk)
-{
-	printk("Task pid %d\n", task_pid_nr(tsk));
-}
-
-static pte_t *lookup_pte(struct mm_struct *mm, unsigned long address)
-{
-	pgd_t *dir;
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t *pte;
-	pte_t entry;
-
-	dir = pgd_offset(mm, address);
-	if (pgd_none(*dir))
-		return NULL;
-
-	pud = pud_offset(dir, address);
-	if (pud_none(*pud))
-		return NULL;
-
-	pmd = pmd_offset(pud, address);
-	if (pmd_none(*pmd))
-		return NULL;
-
-	pte = pte_offset_kernel(pmd, address);
-	entry = *pte;
-	if (pte_none(entry) || !pte_present(entry))
-		return NULL;
-
-	return pte;
-}
-
-/*
- * This routine handles page faults.  It determines the address,
- * and the problem, and then passes it off to one of the appropriate
- * routines.
- */
-asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
-			      unsigned long textaccess, unsigned long address)
-{
-	struct task_struct *tsk;
-	struct mm_struct *mm;
-	struct vm_area_struct * vma;
-	const struct exception_table_entry *fixup;
-	pte_t *pte;
-	int fault;
-
-	/* SIM
-	 * Note this is now called with interrupts still disabled
-	 * This is to cope with being called for a missing IO port
-	 * address with interrupts disabled. This should be fixed as
-	 * soon as we have a better 'fast path' miss handler.
-	 *
-	 * Plus take care how you try and debug this stuff.
-	 * For example, writing debug data to a port which you
-	 * have just faulted on is not going to work.
-	 */
-
-	tsk = current;
-	mm = tsk->mm;
-
-	/* Not an IO address, so reenable interrupts */
-	local_irq_enable();
-
-	/*
-	 * If we're in an interrupt or have no user
-	 * context, we must not take the fault..
-	 */
-	if (in_atomic() || !mm)
-		goto no_context;
-
-	/* TLB misses upon some cache flushes get done under cli() */
-	down_read(&mm->mmap_sem);
-
-	vma = find_vma(mm, address);
-
-	if (!vma) {
-#ifdef DEBUG_FAULT
-		print_task(tsk);
-		printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
-		       __FUNCTION__,__LINE__,
-		       address,regs->pc,textaccess,writeaccess);
-		show_regs(regs);
-#endif
-		goto bad_area;
-	}
-	if (vma->vm_start <= address) {
-		goto good_area;
-	}
-
-	if (!(vma->vm_flags & VM_GROWSDOWN)) {
-#ifdef DEBUG_FAULT
-		print_task(tsk);
-		printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
-		       __FUNCTION__,__LINE__,
-		       address,regs->pc,textaccess,writeaccess);
-		show_regs(regs);
-
-		print_vma(vma);
-#endif
-		goto bad_area;
-	}
-	if (expand_stack(vma, address)) {
-#ifdef DEBUG_FAULT
-		print_task(tsk);
-		printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
-		       __FUNCTION__,__LINE__,
-		       address,regs->pc,textaccess,writeaccess);
-		show_regs(regs);
-#endif
-		goto bad_area;
-	}
-/*
- * Ok, we have a good vm_area for this memory access, so
- * we can handle it..
- */
-good_area:
-	if (textaccess) {
-		if (!(vma->vm_flags & VM_EXEC))
-			goto bad_area;
-	} else {
-		if (writeaccess) {
-			if (!(vma->vm_flags & VM_WRITE))
-				goto bad_area;
-		} else {
-			if (!(vma->vm_flags & VM_READ))
-				goto bad_area;
-		}
-	}
-
-	/*
-	 * If for any reason at all we couldn't handle the fault,
-	 * make sure we exit gracefully rather than endlessly redo
-	 * the fault.
-	 */
-survive:
-	fault = handle_mm_fault(mm, vma, address, writeaccess);
-	if (unlikely(fault & VM_FAULT_ERROR)) {
-		if (fault & VM_FAULT_OOM)
-			goto out_of_memory;
-		else if (fault & VM_FAULT_SIGBUS)
-			goto do_sigbus;
-		BUG();
-	}
-	if (fault & VM_FAULT_MAJOR)
-		tsk->maj_flt++;
-	else
-		tsk->min_flt++;
-
-	/* If we get here, the page fault has been handled.  Do the TLB refill
-	   now from the newly-setup PTE, to avoid having to fault again right
-	   away on the same instruction. */
-	pte = lookup_pte (mm, address);
-	if (!pte) {
-		/* From empirical evidence, we can get here, due to
-		   !pte_present(pte).  (e.g. if a swap-in occurs, and the page
-		   is swapped back out again before the process that wanted it
-		   gets rescheduled?) */
-		goto no_pte;
-	}
-
-	__do_tlb_refill(address, textaccess, pte);
-
-no_pte:
-
-	up_read(&mm->mmap_sem);
-	return;
-
-/*
- * Something tried to access memory that isn't in our memory map..
- * Fix it, but check if it's kernel or user first..
- */
-bad_area:
-#ifdef DEBUG_FAULT
-	printk("fault:bad area\n");
-#endif
-	up_read(&mm->mmap_sem);
-
-	if (user_mode(regs)) {
-		static int count=0;
-		siginfo_t info;
-		if (count < 4) {
-			/* This is really to help debug faults when starting
-			 * usermode, so only need a few */
-			count++;
-			printk("user mode bad_area address=%08lx pid=%d (%s) pc=%08lx\n",
-				address, task_pid_nr(current), current->comm,
-				(unsigned long) regs->pc);
-#if 0
-			show_regs(regs);
-#endif
-		}
-		if (is_global_init(tsk)) {
-			panic("INIT had user mode bad_area\n");
-		}
-		tsk->thread.address = address;
-		tsk->thread.error_code = writeaccess;
-		info.si_signo = SIGSEGV;
-		info.si_errno = 0;
-		info.si_addr = (void *) address;
-		force_sig_info(SIGSEGV, &info, tsk);
-		return;
-	}
-
-no_context:
-#ifdef DEBUG_FAULT
-	printk("fault:No context\n");
-#endif
-	/* Are we prepared to handle this kernel fault?  */
-	fixup = search_exception_tables(regs->pc);
-	if (fixup) {
-		regs->pc = fixup->fixup;
-		return;
-	}
-
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- *
- */
-	if (address < PAGE_SIZE)
-		printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
-	else
-		printk(KERN_ALERT "Unable to handle kernel paging request");
-	printk(" at virtual address %08lx\n", address);
-	printk(KERN_ALERT "pc = %08Lx%08Lx\n", regs->pc >> 32, regs->pc & 0xffffffff);
-	die("Oops", regs, writeaccess);
-	do_exit(SIGKILL);
-
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
-out_of_memory:
-	if (is_global_init(current)) {
-		panic("INIT out of memory\n");
-		yield();
-		goto survive;
-	}
-	printk("fault:Out of memory\n");
-	up_read(&mm->mmap_sem);
-	if (is_global_init(current)) {
-		yield();
-		down_read(&mm->mmap_sem);
-		goto survive;
-	}
-	printk("VM: killing process %s\n", tsk->comm);
-	if (user_mode(regs))
-		do_group_exit(SIGKILL);
-	goto no_context;
-
-do_sigbus:
-	printk("fault:Do sigbus\n");
-	up_read(&mm->mmap_sem);
-
-	/*
-	 * Send a sigbus, regardless of whether we were in kernel
-	 * or user mode.
-	 */
-	tsk->thread.address = address;
-	tsk->thread.error_code = writeaccess;
-	tsk->thread.trap_no = 14;
-	force_sig(SIGBUS, tsk);
-
-	/* Kernel mode? Handle exceptions or die */
-	if (!user_mode(regs))
-		goto no_context;
-}
-
-void update_mmu_cache(struct vm_area_struct * vma,
-			unsigned long address, pte_t pte)
-{
-	/*
-	 * This appears to get called once for every pte entry that gets
-	 * established => I don't think it's efficient to try refilling the
-	 * TLBs with the pages - some may not get accessed even.  Also, for
-	 * executable pages, it is impossible to determine reliably here which
-	 * TLB they should be mapped into (or both even).
-	 *
-	 * So, just do nothing here and handle faults on demand.  In the
-	 * TLBMISS handling case, the refill is now done anyway after the pte
-	 * has been fixed up, so that deals with most useful cases.
-	 */
-}
-
-void local_flush_tlb_one(unsigned long asid, unsigned long page)
-{
-	unsigned long long match, pteh=0, lpage;
-	unsigned long tlb;
-
-	/*
-	 * Sign-extend based on neff.
-	 */
-	lpage = (page & NEFF_SIGN) ? (page | NEFF_MASK) : page;
-	match = (asid << PTEH_ASID_SHIFT) | PTEH_VALID;
-	match |= lpage;
-
-	for_each_itlb_entry(tlb) {
-		asm volatile ("getcfg	%1, 0, %0"
-			      : "=r" (pteh)
-			      : "r" (tlb) );
-
-		if (pteh == match) {
-			__flush_tlb_slot(tlb);
-			break;
-		}
-	}
-
-	for_each_dtlb_entry(tlb) {
-		asm volatile ("getcfg	%1, 0, %0"
-			      : "=r" (pteh)
-			      : "r" (tlb) );
-
-		if (pteh == match) {
-			__flush_tlb_slot(tlb);
-			break;
-		}
-
-	}
-}
-
-void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
-	unsigned long flags;
-
-	if (vma->vm_mm) {
-		page &= PAGE_MASK;
-		local_irq_save(flags);
-		local_flush_tlb_one(get_asid(), page);
-		local_irq_restore(flags);
-	}
-}
-
-void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
-			   unsigned long end)
-{
-	unsigned long flags;
-	unsigned long long match, pteh=0, pteh_epn, pteh_low;
-	unsigned long tlb;
-	unsigned int cpu = smp_processor_id();
-	struct mm_struct *mm;
-
-	mm = vma->vm_mm;
-	if (cpu_context(cpu, mm) == NO_CONTEXT)
-		return;
-
-	local_irq_save(flags);
-
-	start &= PAGE_MASK;
-	end &= PAGE_MASK;
-
-	match = (cpu_asid(cpu, mm) << PTEH_ASID_SHIFT) | PTEH_VALID;
-
-	/* Flush ITLB */
-	for_each_itlb_entry(tlb) {
-		asm volatile ("getcfg	%1, 0, %0"
-			      : "=r" (pteh)
-			      : "r" (tlb) );
-
-		pteh_epn = pteh & PAGE_MASK;
-		pteh_low = pteh & ~PAGE_MASK;
-
-		if (pteh_low == match && pteh_epn >= start && pteh_epn <= end)
-			__flush_tlb_slot(tlb);
-	}
-
-	/* Flush DTLB */
-	for_each_dtlb_entry(tlb) {
-		asm volatile ("getcfg	%1, 0, %0"
-			      : "=r" (pteh)
-			      : "r" (tlb) );
-
-		pteh_epn = pteh & PAGE_MASK;
-		pteh_low = pteh & ~PAGE_MASK;
-
-		if (pteh_low == match && pteh_epn >= start && pteh_epn <= end)
-			__flush_tlb_slot(tlb);
-	}
-
-	local_irq_restore(flags);
-}
-
-void local_flush_tlb_mm(struct mm_struct *mm)
-{
-	unsigned long flags;
-	unsigned int cpu = smp_processor_id();
-
-	if (cpu_context(cpu, mm) == NO_CONTEXT)
-		return;
-
-	local_irq_save(flags);
-
-	cpu_context(cpu, mm) = NO_CONTEXT;
-	if (mm == current->mm)
-		activate_context(mm, cpu);
-
-	local_irq_restore(flags);
-}
-
-void local_flush_tlb_all(void)
-{
-	/* Invalidate all, including shared pages, excluding fixed TLBs */
-	unsigned long flags, tlb;
-
-	local_irq_save(flags);
-
-	/* Flush each ITLB entry */
-	for_each_itlb_entry(tlb)
-		__flush_tlb_slot(tlb);
-
-	/* Flush each DTLB entry */
-	for_each_dtlb_entry(tlb)
-		__flush_tlb_slot(tlb);
-
-	local_irq_restore(flags);
-}
-
-void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
-        /* FIXME: Optimize this later.. */
-        flush_tlb_all();
-}
diff --git a/arch/sh/mm/tlbflush_32.c b/arch/sh/mm/tlbflush_32.c
new file mode 100644
index 000000000000..6f45c1f8a7fe
--- /dev/null
+++ b/arch/sh/mm/tlbflush_32.c
@@ -0,0 +1,140 @@
+/*
+ * TLB flushing operations for SH with an MMU.
+ *
+ *  Copyright (C) 1999  Niibe Yutaka
+ *  Copyright (C) 2003  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/mm.h>
+#include <asm/mmu_context.h>
+#include <asm/tlbflush.h>
+
+void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
+{
+	unsigned int cpu = smp_processor_id();
+
+	if (vma->vm_mm && cpu_context(cpu, vma->vm_mm) != NO_CONTEXT) {
+		unsigned long flags;
+		unsigned long asid;
+		unsigned long saved_asid = MMU_NO_ASID;
+
+		asid = cpu_asid(cpu, vma->vm_mm);
+		page &= PAGE_MASK;
+
+		local_irq_save(flags);
+		if (vma->vm_mm != current->mm) {
+			saved_asid = get_asid();
+			set_asid(asid);
+		}
+		local_flush_tlb_one(asid, page);
+		if (saved_asid != MMU_NO_ASID)
+			set_asid(saved_asid);
+		local_irq_restore(flags);
+	}
+}
+
+void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+			   unsigned long end)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	unsigned int cpu = smp_processor_id();
+
+	if (cpu_context(cpu, mm) != NO_CONTEXT) {
+		unsigned long flags;
+		int size;
+
+		local_irq_save(flags);
+		size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
+		if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */
+			cpu_context(cpu, mm) = NO_CONTEXT;
+			if (mm == current->mm)
+				activate_context(mm, cpu);
+		} else {
+			unsigned long asid;
+			unsigned long saved_asid = MMU_NO_ASID;
+
+			asid = cpu_asid(cpu, mm);
+			start &= PAGE_MASK;
+			end += (PAGE_SIZE - 1);
+			end &= PAGE_MASK;
+			if (mm != current->mm) {
+				saved_asid = get_asid();
+				set_asid(asid);
+			}
+			while (start < end) {
+				local_flush_tlb_one(asid, start);
+				start += PAGE_SIZE;
+			}
+			if (saved_asid != MMU_NO_ASID)
+				set_asid(saved_asid);
+		}
+		local_irq_restore(flags);
+	}
+}
+
+void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+	unsigned int cpu = smp_processor_id();
+	unsigned long flags;
+	int size;
+
+	local_irq_save(flags);
+	size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
+	if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */
+		local_flush_tlb_all();
+	} else {
+		unsigned long asid;
+		unsigned long saved_asid = get_asid();
+
+		asid = cpu_asid(cpu, &init_mm);
+		start &= PAGE_MASK;
+		end += (PAGE_SIZE - 1);
+		end &= PAGE_MASK;
+		set_asid(asid);
+		while (start < end) {
+			local_flush_tlb_one(asid, start);
+			start += PAGE_SIZE;
+		}
+		set_asid(saved_asid);
+	}
+	local_irq_restore(flags);
+}
+
+void local_flush_tlb_mm(struct mm_struct *mm)
+{
+	unsigned int cpu = smp_processor_id();
+
+	/* Invalidate all TLB of this process. */
+	/* Instead of invalidating each TLB, we get new MMU context. */
+	if (cpu_context(cpu, mm) != NO_CONTEXT) {
+		unsigned long flags;
+
+		local_irq_save(flags);
+		cpu_context(cpu, mm) = NO_CONTEXT;
+		if (mm == current->mm)
+			activate_context(mm, cpu);
+		local_irq_restore(flags);
+	}
+}
+
+void local_flush_tlb_all(void)
+{
+	unsigned long flags, status;
+
+	/*
+	 * Flush all the TLB.
+	 *
+	 * Write to the MMU control register's bit:
+	 *	TF-bit for SH-3, TI-bit for SH-4.
+	 *      It's same position, bit #2.
+	 */
+	local_irq_save(flags);
+	status = ctrl_inl(MMUCR);
+	status |= 0x04;
+	ctrl_outl(status, MMUCR);
+	ctrl_barrier();
+	local_irq_restore(flags);
+}
diff --git a/arch/sh/mm/tlbflush_64.c b/arch/sh/mm/tlbflush_64.c
new file mode 100644
index 000000000000..2a98c9ec88ff
--- /dev/null
+++ b/arch/sh/mm/tlbflush_64.c
@@ -0,0 +1,475 @@
+/*
+ * arch/sh/mm/tlb-flush_64.c
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003  Richard Curnow (/proc/tlb, bug fixes)
+ * Copyright (C) 2003  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/signal.h>
+#include <linux/rwsem.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/tlb.h>
+#include <asm/uaccess.h>
+#include <asm/pgalloc.h>
+#include <asm/mmu_context.h>
+
+extern void die(const char *,struct pt_regs *,long);
+
+#define PFLAG(val,flag)   (( (val) & (flag) ) ? #flag : "" )
+#define PPROT(flag) PFLAG(pgprot_val(prot),flag)
+
+static inline void print_prots(pgprot_t prot)
+{
+	printk("prot is 0x%08lx\n",pgprot_val(prot));
+
+	printk("%s %s %s %s %s\n",PPROT(_PAGE_SHARED),PPROT(_PAGE_READ),
+	       PPROT(_PAGE_EXECUTE),PPROT(_PAGE_WRITE),PPROT(_PAGE_USER));
+}
+
+static inline void print_vma(struct vm_area_struct *vma)
+{
+	printk("vma start 0x%08lx\n", vma->vm_start);
+	printk("vma end   0x%08lx\n", vma->vm_end);
+
+	print_prots(vma->vm_page_prot);
+	printk("vm_flags 0x%08lx\n", vma->vm_flags);
+}
+
+static inline void print_task(struct task_struct *tsk)
+{
+	printk("Task pid %d\n", task_pid_nr(tsk));
+}
+
+static pte_t *lookup_pte(struct mm_struct *mm, unsigned long address)
+{
+	pgd_t *dir;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte;
+	pte_t entry;
+
+	dir = pgd_offset(mm, address);
+	if (pgd_none(*dir))
+		return NULL;
+
+	pud = pud_offset(dir, address);
+	if (pud_none(*pud))
+		return NULL;
+
+	pmd = pmd_offset(pud, address);
+	if (pmd_none(*pmd))
+		return NULL;
+
+	pte = pte_offset_kernel(pmd, address);
+	entry = *pte;
+	if (pte_none(entry) || !pte_present(entry))
+		return NULL;
+
+	return pte;
+}
+
+/*
+ * This routine handles page faults.  It determines the address,
+ * and the problem, and then passes it off to one of the appropriate
+ * routines.
+ */
+asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
+			      unsigned long textaccess, unsigned long address)
+{
+	struct task_struct *tsk;
+	struct mm_struct *mm;
+	struct vm_area_struct * vma;
+	const struct exception_table_entry *fixup;
+	pte_t *pte;
+	int fault;
+
+	/* SIM
+	 * Note this is now called with interrupts still disabled
+	 * This is to cope with being called for a missing IO port
+	 * address with interrupts disabled. This should be fixed as
+	 * soon as we have a better 'fast path' miss handler.
+	 *
+	 * Plus take care how you try and debug this stuff.
+	 * For example, writing debug data to a port which you
+	 * have just faulted on is not going to work.
+	 */
+
+	tsk = current;
+	mm = tsk->mm;
+
+	/* Not an IO address, so reenable interrupts */
+	local_irq_enable();
+
+	/*
+	 * If we're in an interrupt or have no user
+	 * context, we must not take the fault..
+	 */
+	if (in_atomic() || !mm)
+		goto no_context;
+
+	/* TLB misses upon some cache flushes get done under cli() */
+	down_read(&mm->mmap_sem);
+
+	vma = find_vma(mm, address);
+
+	if (!vma) {
+#ifdef DEBUG_FAULT
+		print_task(tsk);
+		printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
+		       __FUNCTION__,__LINE__,
+		       address,regs->pc,textaccess,writeaccess);
+		show_regs(regs);
+#endif
+		goto bad_area;
+	}
+	if (vma->vm_start <= address) {
+		goto good_area;
+	}
+
+	if (!(vma->vm_flags & VM_GROWSDOWN)) {
+#ifdef DEBUG_FAULT
+		print_task(tsk);
+		printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
+		       __FUNCTION__,__LINE__,
+		       address,regs->pc,textaccess,writeaccess);
+		show_regs(regs);
+
+		print_vma(vma);
+#endif
+		goto bad_area;
+	}
+	if (expand_stack(vma, address)) {
+#ifdef DEBUG_FAULT
+		print_task(tsk);
+		printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
+		       __FUNCTION__,__LINE__,
+		       address,regs->pc,textaccess,writeaccess);
+		show_regs(regs);
+#endif
+		goto bad_area;
+	}
+/*
+ * Ok, we have a good vm_area for this memory access, so
+ * we can handle it..
+ */
+good_area:
+	if (textaccess) {
+		if (!(vma->vm_flags & VM_EXEC))
+			goto bad_area;
+	} else {
+		if (writeaccess) {
+			if (!(vma->vm_flags & VM_WRITE))
+				goto bad_area;
+		} else {
+			if (!(vma->vm_flags & VM_READ))
+				goto bad_area;
+		}
+	}
+
+	/*
+	 * If for any reason at all we couldn't handle the fault,
+	 * make sure we exit gracefully rather than endlessly redo
+	 * the fault.
+	 */
+survive:
+	fault = handle_mm_fault(mm, vma, address, writeaccess);
+	if (unlikely(fault & VM_FAULT_ERROR)) {
+		if (fault & VM_FAULT_OOM)
+			goto out_of_memory;
+		else if (fault & VM_FAULT_SIGBUS)
+			goto do_sigbus;
+		BUG();
+	}
+	if (fault & VM_FAULT_MAJOR)
+		tsk->maj_flt++;
+	else
+		tsk->min_flt++;
+
+	/* If we get here, the page fault has been handled.  Do the TLB refill
+	   now from the newly-setup PTE, to avoid having to fault again right
+	   away on the same instruction. */
+	pte = lookup_pte (mm, address);
+	if (!pte) {
+		/* From empirical evidence, we can get here, due to
+		   !pte_present(pte).  (e.g. if a swap-in occurs, and the page
+		   is swapped back out again before the process that wanted it
+		   gets rescheduled?) */
+		goto no_pte;
+	}
+
+	__do_tlb_refill(address, textaccess, pte);
+
+no_pte:
+
+	up_read(&mm->mmap_sem);
+	return;
+
+/*
+ * Something tried to access memory that isn't in our memory map..
+ * Fix it, but check if it's kernel or user first..
+ */
+bad_area:
+#ifdef DEBUG_FAULT
+	printk("fault:bad area\n");
+#endif
+	up_read(&mm->mmap_sem);
+
+	if (user_mode(regs)) {
+		static int count=0;
+		siginfo_t info;
+		if (count < 4) {
+			/* This is really to help debug faults when starting
+			 * usermode, so only need a few */
+			count++;
+			printk("user mode bad_area address=%08lx pid=%d (%s) pc=%08lx\n",
+				address, task_pid_nr(current), current->comm,
+				(unsigned long) regs->pc);
+#if 0
+			show_regs(regs);
+#endif
+		}
+		if (is_global_init(tsk)) {
+			panic("INIT had user mode bad_area\n");
+		}
+		tsk->thread.address = address;
+		tsk->thread.error_code = writeaccess;
+		info.si_signo = SIGSEGV;
+		info.si_errno = 0;
+		info.si_addr = (void *) address;
+		force_sig_info(SIGSEGV, &info, tsk);
+		return;
+	}
+
+no_context:
+#ifdef DEBUG_FAULT
+	printk("fault:No context\n");
+#endif
+	/* Are we prepared to handle this kernel fault?  */
+	fixup = search_exception_tables(regs->pc);
+	if (fixup) {
+		regs->pc = fixup->fixup;
+		return;
+	}
+
+/*
+ * Oops. The kernel tried to access some bad page. We'll have to
+ * terminate things with extreme prejudice.
+ *
+ */
+	if (address < PAGE_SIZE)
+		printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
+	else
+		printk(KERN_ALERT "Unable to handle kernel paging request");
+	printk(" at virtual address %08lx\n", address);
+	printk(KERN_ALERT "pc = %08Lx%08Lx\n", regs->pc >> 32, regs->pc & 0xffffffff);
+	die("Oops", regs, writeaccess);
+	do_exit(SIGKILL);
+
+/*
+ * We ran out of memory, or some other thing happened to us that made
+ * us unable to handle the page fault gracefully.
+ */
+out_of_memory:
+	if (is_global_init(current)) {
+		panic("INIT out of memory\n");
+		yield();
+		goto survive;
+	}
+	printk("fault:Out of memory\n");
+	up_read(&mm->mmap_sem);
+	if (is_global_init(current)) {
+		yield();
+		down_read(&mm->mmap_sem);
+		goto survive;
+	}
+	printk("VM: killing process %s\n", tsk->comm);
+	if (user_mode(regs))
+		do_group_exit(SIGKILL);
+	goto no_context;
+
+do_sigbus:
+	printk("fault:Do sigbus\n");
+	up_read(&mm->mmap_sem);
+
+	/*
+	 * Send a sigbus, regardless of whether we were in kernel
+	 * or user mode.
+	 */
+	tsk->thread.address = address;
+	tsk->thread.error_code = writeaccess;
+	tsk->thread.trap_no = 14;
+	force_sig(SIGBUS, tsk);
+
+	/* Kernel mode? Handle exceptions or die */
+	if (!user_mode(regs))
+		goto no_context;
+}
+
+void update_mmu_cache(struct vm_area_struct * vma,
+			unsigned long address, pte_t pte)
+{
+	/*
+	 * This appears to get called once for every pte entry that gets
+	 * established => I don't think it's efficient to try refilling the
+	 * TLBs with the pages - some may not get accessed even.  Also, for
+	 * executable pages, it is impossible to determine reliably here which
+	 * TLB they should be mapped into (or both even).
+	 *
+	 * So, just do nothing here and handle faults on demand.  In the
+	 * TLBMISS handling case, the refill is now done anyway after the pte
+	 * has been fixed up, so that deals with most useful cases.
+	 */
+}
+
+void local_flush_tlb_one(unsigned long asid, unsigned long page)
+{
+	unsigned long long match, pteh=0, lpage;
+	unsigned long tlb;
+
+	/*
+	 * Sign-extend based on neff.
+	 */
+	lpage = (page & NEFF_SIGN) ? (page | NEFF_MASK) : page;
+	match = (asid << PTEH_ASID_SHIFT) | PTEH_VALID;
+	match |= lpage;
+
+	for_each_itlb_entry(tlb) {
+		asm volatile ("getcfg	%1, 0, %0"
+			      : "=r" (pteh)
+			      : "r" (tlb) );
+
+		if (pteh == match) {
+			__flush_tlb_slot(tlb);
+			break;
+		}
+	}
+
+	for_each_dtlb_entry(tlb) {
+		asm volatile ("getcfg	%1, 0, %0"
+			      : "=r" (pteh)
+			      : "r" (tlb) );
+
+		if (pteh == match) {
+			__flush_tlb_slot(tlb);
+			break;
+		}
+
+	}
+}
+
+void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
+{
+	unsigned long flags;
+
+	if (vma->vm_mm) {
+		page &= PAGE_MASK;
+		local_irq_save(flags);
+		local_flush_tlb_one(get_asid(), page);
+		local_irq_restore(flags);
+	}
+}
+
+void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+			   unsigned long end)
+{
+	unsigned long flags;
+	unsigned long long match, pteh=0, pteh_epn, pteh_low;
+	unsigned long tlb;
+	unsigned int cpu = smp_processor_id();
+	struct mm_struct *mm;
+
+	mm = vma->vm_mm;
+	if (cpu_context(cpu, mm) == NO_CONTEXT)
+		return;
+
+	local_irq_save(flags);
+
+	start &= PAGE_MASK;
+	end &= PAGE_MASK;
+
+	match = (cpu_asid(cpu, mm) << PTEH_ASID_SHIFT) | PTEH_VALID;
+
+	/* Flush ITLB */
+	for_each_itlb_entry(tlb) {
+		asm volatile ("getcfg	%1, 0, %0"
+			      : "=r" (pteh)
+			      : "r" (tlb) );
+
+		pteh_epn = pteh & PAGE_MASK;
+		pteh_low = pteh & ~PAGE_MASK;
+
+		if (pteh_low == match && pteh_epn >= start && pteh_epn <= end)
+			__flush_tlb_slot(tlb);
+	}
+
+	/* Flush DTLB */
+	for_each_dtlb_entry(tlb) {
+		asm volatile ("getcfg	%1, 0, %0"
+			      : "=r" (pteh)
+			      : "r" (tlb) );
+
+		pteh_epn = pteh & PAGE_MASK;
+		pteh_low = pteh & ~PAGE_MASK;
+
+		if (pteh_low == match && pteh_epn >= start && pteh_epn <= end)
+			__flush_tlb_slot(tlb);
+	}
+
+	local_irq_restore(flags);
+}
+
+void local_flush_tlb_mm(struct mm_struct *mm)
+{
+	unsigned long flags;
+	unsigned int cpu = smp_processor_id();
+
+	if (cpu_context(cpu, mm) == NO_CONTEXT)
+		return;
+
+	local_irq_save(flags);
+
+	cpu_context(cpu, mm) = NO_CONTEXT;
+	if (mm == current->mm)
+		activate_context(mm, cpu);
+
+	local_irq_restore(flags);
+}
+
+void local_flush_tlb_all(void)
+{
+	/* Invalidate all, including shared pages, excluding fixed TLBs */
+	unsigned long flags, tlb;
+
+	local_irq_save(flags);
+
+	/* Flush each ITLB entry */
+	for_each_itlb_entry(tlb)
+		__flush_tlb_slot(tlb);
+
+	/* Flush each DTLB entry */
+	for_each_dtlb_entry(tlb)
+		__flush_tlb_slot(tlb);
+
+	local_irq_restore(flags);
+}
+
+void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+        /* FIXME: Optimize this later.. */
+        flush_tlb_all();
+}
-- 
cgit v1.2.3-59-g8ed1b


From 9895f9429cb489ba271c06767531083ae4c4bcbe Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 22:46:14 +0900
Subject: sh: clear/copy_page renames in lib and lib64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/lib/Makefile       |   3 +-
 arch/sh/lib/clear_page.S   | 152 ++++++++++++++++++
 arch/sh/lib/copy_page.S    | 388 +++++++++++++++++++++++++++++++++++++++++++++
 arch/sh/lib64/Makefile     |   2 +-
 arch/sh/lib64/clear_page.S |  54 +++++++
 arch/sh/lib64/copy_page.S  |  89 +++++++++++
 arch/sh/lib64/page_clear.S |  54 -------
 arch/sh/lib64/page_copy.S  |  89 -----------
 arch/sh/mm/Makefile_32     |   3 +-
 arch/sh/mm/clear_page.S    | 152 ------------------
 arch/sh/mm/copy_page.S     | 388 ---------------------------------------------
 11 files changed, 687 insertions(+), 687 deletions(-)
 create mode 100644 arch/sh/lib/clear_page.S
 create mode 100644 arch/sh/lib/copy_page.S
 create mode 100644 arch/sh/lib64/clear_page.S
 create mode 100644 arch/sh/lib64/copy_page.S
 delete mode 100644 arch/sh/lib64/page_clear.S
 delete mode 100644 arch/sh/lib64/page_copy.S
 delete mode 100644 arch/sh/mm/clear_page.S
 delete mode 100644 arch/sh/mm/copy_page.S

(limited to 'arch')

diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile
index 6f7ac9eeb54f..ebb55d1149f5 100644
--- a/arch/sh/lib/Makefile
+++ b/arch/sh/lib/Makefile
@@ -8,6 +8,7 @@ lib-y  = delay.o io.o memset.o memmove.o memchr.o \
 memcpy-y			:= memcpy.o
 memcpy-$(CONFIG_CPU_SH4)	:= memcpy-sh4.o
 
-lib-y	+= $(memcpy-y)
+lib-$(CONFIG_MMU)		+= copy_page.o clear_page.o
+lib-y				+= $(memcpy-y)
 
 EXTRA_CFLAGS += -Werror
diff --git a/arch/sh/lib/clear_page.S b/arch/sh/lib/clear_page.S
new file mode 100644
index 000000000000..7a7c81ee3f01
--- /dev/null
+++ b/arch/sh/lib/clear_page.S
@@ -0,0 +1,152 @@
+/*
+ * __clear_user_page, __clear_user, clear_page implementation of SuperH
+ *
+ * Copyright (C) 2001  Kaz Kojima
+ * Copyright (C) 2001, 2002  Niibe Yutaka
+ * Copyright (C) 2006  Paul Mundt
+ */
+#include <linux/linkage.h>
+#include <asm/page.h>
+
+/*
+ * clear_page_slow
+ * @to: P1 address
+ *
+ * void clear_page_slow(void *to)
+ */
+
+/*
+ * r0 --- scratch
+ * r4 --- to
+ * r5 --- to + PAGE_SIZE
+ */
+ENTRY(clear_page_slow)
+	mov	r4,r5
+	mov.l	.Llimit,r0
+	add	r0,r5
+	mov	#0,r0
+	!
+1:
+#if defined(CONFIG_CPU_SH3)
+	mov.l	r0,@r4
+#elif defined(CONFIG_CPU_SH4)
+	movca.l	r0,@r4
+	mov	r4,r1
+#endif
+	add	#32,r4
+	mov.l	r0,@-r4
+	mov.l	r0,@-r4
+	mov.l	r0,@-r4
+	mov.l	r0,@-r4
+	mov.l	r0,@-r4
+	mov.l	r0,@-r4
+	mov.l	r0,@-r4
+#if defined(CONFIG_CPU_SH4)
+	ocbwb	@r1
+#endif
+	cmp/eq	r5,r4
+	bf/s	1b
+	 add	#28,r4
+	!
+	rts
+	 nop
+.Llimit:	.long	(PAGE_SIZE-28)
+
+ENTRY(__clear_user)
+	!
+	mov	#0, r0
+	mov	#0xe0, r1	! 0xffffffe0
+	!
+	! r4..(r4+31)&~32 	   -------- not aligned	[ Area 0 ]
+	! (r4+31)&~32..(r4+r5)&~32 -------- aligned	[ Area 1 ]
+	! (r4+r5)&~32..r4+r5       -------- not aligned	[ Area 2 ]
+	!
+	! Clear area 0
+	mov	r4, r2
+	!
+	tst	r1, r5		! length < 32
+	bt	.Larea2		! skip to remainder
+	!
+	add	#31, r2
+	and	r1, r2
+	cmp/eq	r4, r2
+	bt	.Larea1
+	mov	r2, r3
+	sub	r4, r3
+	mov	r3, r7
+	mov	r4, r2
+	!
+.L0:	dt	r3
+0:	mov.b	r0, @r2
+	bf/s	.L0
+	 add	#1, r2
+	!
+	sub	r7, r5
+	mov	r2, r4
+.Larea1:
+	mov	r4, r3
+	add	r5, r3
+	and	r1, r3
+	cmp/hi	r2, r3
+	bf	.Larea2
+	!
+	! Clear area 1
+#if defined(CONFIG_CPU_SH4)
+1:	movca.l	r0, @r2
+#else
+1:	mov.l	r0, @r2
+#endif
+	add	#4, r2
+2:	mov.l	r0, @r2
+	add	#4, r2
+3:	mov.l	r0, @r2
+	add	#4, r2
+4:	mov.l	r0, @r2
+	add	#4, r2
+5:	mov.l	r0, @r2
+	add	#4, r2
+6:	mov.l	r0, @r2
+	add	#4, r2
+7:	mov.l	r0, @r2
+	add	#4, r2
+8:	mov.l	r0, @r2
+	add	#4, r2
+	cmp/hi	r2, r3
+	bt/s	1b
+	 nop
+	!
+	! Clear area 2
+.Larea2:
+	mov	r4, r3
+	add	r5, r3
+	cmp/hs	r3, r2
+	bt/s	.Ldone
+	 sub	r2, r3
+.L2:	dt	r3
+9:	mov.b	r0, @r2
+	bf/s	.L2
+	 add	#1, r2
+	!
+.Ldone:	rts
+	 mov	#0, r0	! return 0 as normal return
+
+	! return the number of bytes remained
+.Lbad_clear_user:
+	mov	r4, r0
+	add	r5, r0
+	rts
+	 sub	r2, r0
+
+.section __ex_table,"a"
+	.align 2
+	.long	0b, .Lbad_clear_user
+	.long	1b, .Lbad_clear_user
+	.long	2b, .Lbad_clear_user
+	.long	3b, .Lbad_clear_user
+	.long	4b, .Lbad_clear_user
+	.long	5b, .Lbad_clear_user
+	.long	6b, .Lbad_clear_user
+	.long	7b, .Lbad_clear_user
+	.long	8b, .Lbad_clear_user
+	.long	9b, .Lbad_clear_user
+.previous
diff --git a/arch/sh/lib/copy_page.S b/arch/sh/lib/copy_page.S
new file mode 100644
index 000000000000..b879545fa28b
--- /dev/null
+++ b/arch/sh/lib/copy_page.S
@@ -0,0 +1,388 @@
+/*
+ * copy_page, __copy_user_page, __copy_user implementation of SuperH
+ *
+ * Copyright (C) 2001  Niibe Yutaka & Kaz Kojima
+ * Copyright (C) 2002  Toshinobu Sugioka
+ * Copyright (C) 2006  Paul Mundt
+ */
+#include <linux/linkage.h>
+#include <asm/page.h>
+
+/*
+ * copy_page
+ * @to: P1 address
+ * @from: P1 address
+ *
+ * void copy_page(void *to, void *from)
+ */
+
+/*
+ * r0, r1, r2, r3, r4, r5, r6, r7 --- scratch 
+ * r8 --- from + PAGE_SIZE
+ * r9 --- not used
+ * r10 --- to
+ * r11 --- from
+ */
+ENTRY(copy_page)
+	mov.l	r8,@-r15
+	mov.l	r10,@-r15
+	mov.l	r11,@-r15
+	mov	r4,r10
+	mov	r5,r11
+	mov	r5,r8
+	mov.l	.Lpsz,r0
+	add	r0,r8
+	!
+1:	mov.l	@r11+,r0
+	mov.l	@r11+,r1
+	mov.l	@r11+,r2
+	mov.l	@r11+,r3
+	mov.l	@r11+,r4
+	mov.l	@r11+,r5
+	mov.l	@r11+,r6
+	mov.l	@r11+,r7
+#if defined(CONFIG_CPU_SH3)
+	mov.l	r0,@r10
+#elif defined(CONFIG_CPU_SH4)
+	movca.l	r0,@r10
+	mov	r10,r0
+#endif
+	add	#32,r10
+	mov.l	r7,@-r10
+	mov.l	r6,@-r10
+	mov.l	r5,@-r10
+	mov.l	r4,@-r10
+	mov.l	r3,@-r10
+	mov.l	r2,@-r10
+	mov.l	r1,@-r10
+#if defined(CONFIG_CPU_SH4)
+	ocbwb	@r0
+#endif
+	cmp/eq	r11,r8
+	bf/s	1b
+	 add	#28,r10
+	!
+	mov.l	@r15+,r11
+	mov.l	@r15+,r10
+	mov.l	@r15+,r8
+	rts
+	 nop
+
+	.align 2
+.Lpsz:	.long	PAGE_SIZE
+/*
+ * __kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n);
+ * Return the number of bytes NOT copied
+ */
+#define EX(...)			\
+	9999: __VA_ARGS__ ;		\
+	.section __ex_table, "a";	\
+	.long 9999b, 6000f	;	\
+	.previous
+ENTRY(__copy_user)
+	! Check if small number of bytes
+	mov	#11,r0
+	mov	r4,r3
+	cmp/gt	r0,r6		! r6 (len) > r0 (11)
+	bf/s	.L_cleanup_loop_no_pop
+	 add	r6,r3		! last destination address
+
+	! Calculate bytes needed to align to src
+	mov.l	r11,@-r15
+	neg	r5,r0
+	mov.l	r10,@-r15
+	add	#4,r0
+	mov.l	r9,@-r15
+	and	#3,r0
+	mov.l	r8,@-r15
+	tst	r0,r0
+	bt	2f
+
+1:
+	! Copy bytes to long word align src
+EX(	mov.b	@r5+,r1		)
+	dt	r0
+	add	#-1,r6
+EX(	mov.b	r1,@r4		)
+	bf/s	1b
+	 add	#1,r4
+
+	! Jump to appropriate routine depending on dest
+2:	mov	#3,r1
+	mov	r6, r2
+	and	r4,r1
+	shlr2	r2
+	shll2	r1
+	mova	.L_jump_tbl,r0
+	mov.l	@(r0,r1),r1
+	jmp	@r1
+	 nop
+
+	.align 2
+.L_jump_tbl:
+	.long	.L_dest00
+	.long	.L_dest01
+	.long	.L_dest10
+	.long	.L_dest11
+
+/*
+ * Come here if there are less than 12 bytes to copy
+ *
+ * Keep the branch target close, so the bf/s callee doesn't overflow
+ * and result in a more expensive branch being inserted. This is the
+ * fast-path for small copies, the jump via the jump table will hit the
+ * default slow-path cleanup. -PFM.
+ */
+.L_cleanup_loop_no_pop:
+	tst	r6,r6		! Check explicitly for zero
+	bt	1f
+
+2:
+EX(	mov.b	@r5+,r0		)
+	dt	r6
+EX(	mov.b	r0,@r4		)
+	bf/s	2b
+	 add	#1,r4
+
+1:	mov	#0,r0		! normal return
+5000:
+
+# Exception handler:
+.section .fixup, "ax"
+6000:
+	mov.l	8000f,r1
+	mov	r3,r0
+	jmp	@r1
+	 sub	r4,r0
+	.align	2
+8000:	.long	5000b
+
+.previous
+	rts
+	 nop
+
+! Destination = 00
+
+.L_dest00:
+	! Skip the large copy for small transfers
+	mov	#(32+32-4), r0
+	cmp/gt	r6, r0		! r0 (60) > r6 (len)
+	bt	1f
+
+	! Align dest to a 32 byte boundary
+	neg	r4,r0
+	add	#0x20, r0
+	and	#0x1f, r0
+	tst	r0, r0
+	bt	2f
+
+	sub	r0, r6
+	shlr2	r0
+3:
+EX(	mov.l	@r5+,r1		)
+	dt	r0
+EX(	mov.l	r1,@r4		)
+	bf/s	3b
+	 add	#4,r4
+
+2:
+EX(	mov.l	@r5+,r0		)
+EX(	mov.l	@r5+,r1		)
+EX(	mov.l	@r5+,r2		)
+EX(	mov.l	@r5+,r7		)
+EX(	mov.l	@r5+,r8		)
+EX(	mov.l	@r5+,r9		)
+EX(	mov.l	@r5+,r10	)
+EX(	mov.l	@r5+,r11	)
+#ifdef CONFIG_CPU_SH4
+EX(	movca.l	r0,@r4		)
+#else
+EX(	mov.l	r0,@r4		)
+#endif
+	add	#-32, r6
+EX(	mov.l	r1,@(4,r4)	)
+	mov	#32, r0
+EX(	mov.l	r2,@(8,r4)	)
+	cmp/gt	r6, r0		! r0 (32) > r6 (len)
+EX(	mov.l	r7,@(12,r4)	)
+EX(	mov.l	r8,@(16,r4)	)
+EX(	mov.l	r9,@(20,r4)	)
+EX(	mov.l	r10,@(24,r4)	)
+EX(	mov.l	r11,@(28,r4)	)
+	bf/s	2b
+	 add	#32,r4
+
+1:	mov	r6, r0
+	shlr2	r0
+	tst	r0, r0
+	bt	.L_cleanup
+1:
+EX(	mov.l	@r5+,r1		)
+	dt	r0
+EX(	mov.l	r1,@r4		)
+	bf/s	1b
+	 add	#4,r4
+
+	bra	.L_cleanup
+	 nop
+
+! Destination = 10
+
+.L_dest10:
+	mov	r2,r7
+	shlr2	r7
+	shlr	r7
+	tst	r7,r7
+	mov	#7,r0
+	bt/s	1f
+	 and	r0,r2
+2:
+	dt	r7
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+EX(	mov.l	@r5+,r0		)
+EX(	mov.l	@r5+,r1		)
+EX(	mov.l	@r5+,r8		)
+EX(	mov.l	@r5+,r9		)
+EX(	mov.l	@r5+,r10	)
+EX(	mov.w	r0,@r4		)
+	add	#2,r4
+	xtrct	r1,r0
+	xtrct	r8,r1
+	xtrct	r9,r8
+	xtrct	r10,r9
+
+EX(	mov.l	r0,@r4		)
+EX(	mov.l	r1,@(4,r4)	)
+EX(	mov.l	r8,@(8,r4)	)
+EX(	mov.l	r9,@(12,r4)	)
+
+EX(	mov.l	@r5+,r1		)
+EX(	mov.l	@r5+,r8		)
+EX(	mov.l	@r5+,r0		)
+	xtrct	r1,r10
+	xtrct	r8,r1
+	xtrct	r0,r8
+	shlr16	r0
+EX(	mov.l	r10,@(16,r4)	)
+EX(	mov.l	r1,@(20,r4)	)
+EX(	mov.l	r8,@(24,r4)	)
+EX(	mov.w	r0,@(28,r4)	)
+	bf/s	2b
+	 add	#30,r4
+#else
+EX(	mov.l	@(28,r5),r0	)
+EX(	mov.l	@(24,r5),r8	)
+EX(	mov.l	@(20,r5),r9	)
+EX(	mov.l	@(16,r5),r10	)
+EX(	mov.w	r0,@(30,r4)	)
+	add	#-2,r4
+	xtrct	r8,r0
+	xtrct	r9,r8
+	xtrct	r10,r9
+EX(	mov.l	r0,@(28,r4)	)
+EX(	mov.l	r8,@(24,r4)	)
+EX(	mov.l	r9,@(20,r4)	)
+
+EX(	mov.l	@(12,r5),r0	)
+EX(	mov.l	@(8,r5),r8	)
+	xtrct	r0,r10
+EX(	mov.l	@(4,r5),r9	)
+	mov.l	r10,@(16,r4)
+EX(	mov.l	@r5,r10		)
+	xtrct	r8,r0
+	xtrct	r9,r8
+	xtrct	r10,r9
+EX(	mov.l	r0,@(12,r4)	)
+EX(	mov.l	r8,@(8,r4)	)
+	swap.w	r10,r0
+EX(	mov.l	r9,@(4,r4)	)
+EX(	mov.w	r0,@(2,r4)	)
+
+	add	#32,r5
+	bf/s	2b
+	 add	#34,r4
+#endif
+	tst	r2,r2
+	bt	.L_cleanup
+
+1:	! Read longword, write two words per iteration
+EX(	mov.l	@r5+,r0		)
+	dt	r2
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+EX(	mov.w	r0,@r4		)
+	shlr16	r0
+EX(	mov.w 	r0,@(2,r4)	)
+#else
+EX(	mov.w	r0,@(2,r4)	)
+	shlr16	r0
+EX(	mov.w	r0,@r4		)
+#endif
+	bf/s	1b
+	 add	#4,r4
+
+	bra	.L_cleanup
+	 nop
+
+! Destination = 01 or 11
+
+.L_dest01:
+.L_dest11:
+	! Read longword, write byte, word, byte per iteration
+EX(	mov.l	@r5+,r0		)
+	dt	r2
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+EX(	mov.b	r0,@r4		)
+	shlr8	r0
+	add	#1,r4
+EX(	mov.w	r0,@r4		)
+	shlr16	r0
+EX(	mov.b	r0,@(2,r4)	)
+	bf/s	.L_dest01
+	 add	#3,r4
+#else
+EX(	mov.b	r0,@(3,r4)	)
+	shlr8	r0
+	swap.w	r0,r7
+EX(	mov.b	r7,@r4		)
+	add	#1,r4
+EX(	mov.w	r0,@r4		)
+	bf/s	.L_dest01
+	 add	#3,r4
+#endif
+
+! Cleanup last few bytes
+.L_cleanup:
+	mov	r6,r0
+	and	#3,r0
+	tst	r0,r0
+	bt	.L_exit
+	mov	r0,r6
+
+.L_cleanup_loop:
+EX(	mov.b	@r5+,r0		)
+	dt	r6
+EX(	mov.b	r0,@r4		)
+	bf/s	.L_cleanup_loop
+	 add	#1,r4
+
+.L_exit:
+	mov	#0,r0		! normal return
+
+5000:
+
+# Exception handler:
+.section .fixup, "ax"
+6000:
+	mov.l	8000f,r1
+	mov	r3,r0
+	jmp	@r1
+	 sub	r4,r0
+	.align	2
+8000:	.long	5000b
+
+.previous
+	mov.l	@r15+,r8
+	mov.l	@r15+,r9
+	mov.l	@r15+,r10
+	rts
+	 mov.l	@r15+,r11
diff --git a/arch/sh/lib64/Makefile b/arch/sh/lib64/Makefile
index 2f4086ac6f99..9950966923a0 100644
--- a/arch/sh/lib64/Makefile
+++ b/arch/sh/lib64/Makefile
@@ -11,5 +11,5 @@
 
 # Panic should really be compiled as PIC
 lib-y  := udelay.o c-checksum.o dbg.o panic.o memcpy.o copy_user_memcpy.o \
-		page_copy.o page_clear.o
+		copy_page.o clear_page.o
 
diff --git a/arch/sh/lib64/clear_page.S b/arch/sh/lib64/clear_page.S
new file mode 100644
index 000000000000..007ab48ecc1c
--- /dev/null
+++ b/arch/sh/lib64/clear_page.S
@@ -0,0 +1,54 @@
+/*
+   Copyright 2003 Richard Curnow, SuperH (UK) Ltd.
+
+   This file is subject to the terms and conditions of the GNU General Public
+   License.  See the file "COPYING" in the main directory of this archive
+   for more details.
+
+   Tight version of memset for the case of just clearing a page.  It turns out
+   that having the alloco's spaced out slightly due to the increment/branch
+   pair causes them to contend less for access to the cache.  Similarly,
+   keeping the stores apart from the allocos causes less contention.  => Do two
+   separate loops.  Do multiple stores per loop to amortise the
+   increment/branch cost a little.
+
+   Parameters:
+   r2 : source effective address (start of page)
+
+   Always clears 4096 bytes.
+
+   Note : alloco guarded by synco to avoid TAKum03020 erratum
+
+*/
+
+	.section .text..SHmedia32,"ax"
+	.little
+
+	.balign 8
+	.global clear_page
+clear_page:
+	pta/l 1f, tr1
+	pta/l 2f, tr2
+	ptabs/l r18, tr0
+
+	movi 4096, r7
+	add  r2, r7, r7
+	add  r2, r63, r6
+1:
+	alloco r6, 0
+	synco	! TAKum03020
+	addi	r6, 32, r6
+	bgt/l	r7, r6, tr1
+
+	add  r2, r63, r6
+2:
+	st.q  r6,   0, r63
+	st.q  r6,   8, r63
+	st.q  r6,  16, r63
+	st.q  r6,  24, r63
+	addi r6, 32, r6
+	bgt/l r7, r6, tr2
+
+	blink tr0, r63
+
+
diff --git a/arch/sh/lib64/copy_page.S b/arch/sh/lib64/copy_page.S
new file mode 100644
index 000000000000..0ec6fca63b56
--- /dev/null
+++ b/arch/sh/lib64/copy_page.S
@@ -0,0 +1,89 @@
+/*
+   Copyright 2003 Richard Curnow, SuperH (UK) Ltd.
+
+   This file is subject to the terms and conditions of the GNU General Public
+   License.  See the file "COPYING" in the main directory of this archive
+   for more details.
+
+   Tight version of mempy for the case of just copying a page.
+   Prefetch strategy empirically optimised against RTL simulations
+   of SH5-101 cut2 eval chip with Cayman board DDR memory.
+
+   Parameters:
+   r2 : destination effective address (start of page)
+   r3 : source effective address (start of page)
+
+   Always copies 4096 bytes.
+
+   Points to review.
+   * Currently the prefetch is 4 lines ahead and the alloco is 2 lines ahead.
+     It seems like the prefetch needs to be at at least 4 lines ahead to get
+     the data into the cache in time, and the allocos contend with outstanding
+     prefetches for the same cache set, so it's better to have the numbers
+     different.
+   */
+
+	.section .text..SHmedia32,"ax"
+	.little
+
+	.balign 8
+	.global copy_page
+copy_page:
+
+	/* Copy 4096 bytes worth of data from r3 to r2.
+	   Do prefetches 4 lines ahead.
+	   Do alloco 2 lines ahead */
+
+	pta 1f, tr1
+	pta 2f, tr2
+	pta 3f, tr3
+	ptabs r18, tr0
+
+#if 0
+	/* TAKum03020 */
+	ld.q r3, 0x00, r63
+	ld.q r3, 0x20, r63
+	ld.q r3, 0x40, r63
+	ld.q r3, 0x60, r63
+#endif
+	alloco r2, 0x00
+	synco		! TAKum03020
+	alloco r2, 0x20
+	synco		! TAKum03020
+
+	movi 3968, r6
+	add  r2, r6, r6
+	addi r6, 64, r7
+	addi r7, 64, r8
+	sub r3, r2, r60
+	addi r60, 8, r61
+	addi r61, 8, r62
+	addi r62, 8, r23
+	addi r60, 0x80, r22
+
+/* Minimal code size.  The extra branches inside the loop don't cost much
+   because they overlap with the time spent waiting for prefetches to
+   complete. */
+1:
+#if 0
+	/* TAKum03020 */
+	bge/u r2, r6, tr2  ! skip prefetch for last 4 lines
+	ldx.q r2, r22, r63 ! prefetch 4 lines hence
+#endif
+2:
+	bge/u r2, r7, tr3  ! skip alloco for last 2 lines
+	alloco r2, 0x40    ! alloc destination line 2 lines ahead
+	synco		! TAKum03020
+3:
+	ldx.q r2, r60, r36
+	ldx.q r2, r61, r37
+	ldx.q r2, r62, r38
+	ldx.q r2, r23, r39
+	st.q  r2,   0, r36
+	st.q  r2,   8, r37
+	st.q  r2,  16, r38
+	st.q  r2,  24, r39
+	addi r2, 32, r2
+	bgt/l r8, r2, tr1
+
+	blink tr0, r63	   ! return
diff --git a/arch/sh/lib64/page_clear.S b/arch/sh/lib64/page_clear.S
deleted file mode 100644
index 007ab48ecc1c..000000000000
--- a/arch/sh/lib64/page_clear.S
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
-   Copyright 2003 Richard Curnow, SuperH (UK) Ltd.
-
-   This file is subject to the terms and conditions of the GNU General Public
-   License.  See the file "COPYING" in the main directory of this archive
-   for more details.
-
-   Tight version of memset for the case of just clearing a page.  It turns out
-   that having the alloco's spaced out slightly due to the increment/branch
-   pair causes them to contend less for access to the cache.  Similarly,
-   keeping the stores apart from the allocos causes less contention.  => Do two
-   separate loops.  Do multiple stores per loop to amortise the
-   increment/branch cost a little.
-
-   Parameters:
-   r2 : source effective address (start of page)
-
-   Always clears 4096 bytes.
-
-   Note : alloco guarded by synco to avoid TAKum03020 erratum
-
-*/
-
-	.section .text..SHmedia32,"ax"
-	.little
-
-	.balign 8
-	.global clear_page
-clear_page:
-	pta/l 1f, tr1
-	pta/l 2f, tr2
-	ptabs/l r18, tr0
-
-	movi 4096, r7
-	add  r2, r7, r7
-	add  r2, r63, r6
-1:
-	alloco r6, 0
-	synco	! TAKum03020
-	addi	r6, 32, r6
-	bgt/l	r7, r6, tr1
-
-	add  r2, r63, r6
-2:
-	st.q  r6,   0, r63
-	st.q  r6,   8, r63
-	st.q  r6,  16, r63
-	st.q  r6,  24, r63
-	addi r6, 32, r6
-	bgt/l r7, r6, tr2
-
-	blink tr0, r63
-
-
diff --git a/arch/sh/lib64/page_copy.S b/arch/sh/lib64/page_copy.S
deleted file mode 100644
index 0ec6fca63b56..000000000000
--- a/arch/sh/lib64/page_copy.S
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
-   Copyright 2003 Richard Curnow, SuperH (UK) Ltd.
-
-   This file is subject to the terms and conditions of the GNU General Public
-   License.  See the file "COPYING" in the main directory of this archive
-   for more details.
-
-   Tight version of mempy for the case of just copying a page.
-   Prefetch strategy empirically optimised against RTL simulations
-   of SH5-101 cut2 eval chip with Cayman board DDR memory.
-
-   Parameters:
-   r2 : destination effective address (start of page)
-   r3 : source effective address (start of page)
-
-   Always copies 4096 bytes.
-
-   Points to review.
-   * Currently the prefetch is 4 lines ahead and the alloco is 2 lines ahead.
-     It seems like the prefetch needs to be at at least 4 lines ahead to get
-     the data into the cache in time, and the allocos contend with outstanding
-     prefetches for the same cache set, so it's better to have the numbers
-     different.
-   */
-
-	.section .text..SHmedia32,"ax"
-	.little
-
-	.balign 8
-	.global copy_page
-copy_page:
-
-	/* Copy 4096 bytes worth of data from r3 to r2.
-	   Do prefetches 4 lines ahead.
-	   Do alloco 2 lines ahead */
-
-	pta 1f, tr1
-	pta 2f, tr2
-	pta 3f, tr3
-	ptabs r18, tr0
-
-#if 0
-	/* TAKum03020 */
-	ld.q r3, 0x00, r63
-	ld.q r3, 0x20, r63
-	ld.q r3, 0x40, r63
-	ld.q r3, 0x60, r63
-#endif
-	alloco r2, 0x00
-	synco		! TAKum03020
-	alloco r2, 0x20
-	synco		! TAKum03020
-
-	movi 3968, r6
-	add  r2, r6, r6
-	addi r6, 64, r7
-	addi r7, 64, r8
-	sub r3, r2, r60
-	addi r60, 8, r61
-	addi r61, 8, r62
-	addi r62, 8, r23
-	addi r60, 0x80, r22
-
-/* Minimal code size.  The extra branches inside the loop don't cost much
-   because they overlap with the time spent waiting for prefetches to
-   complete. */
-1:
-#if 0
-	/* TAKum03020 */
-	bge/u r2, r6, tr2  ! skip prefetch for last 4 lines
-	ldx.q r2, r22, r63 ! prefetch 4 lines hence
-#endif
-2:
-	bge/u r2, r7, tr3  ! skip alloco for last 2 lines
-	alloco r2, 0x40    ! alloc destination line 2 lines ahead
-	synco		! TAKum03020
-3:
-	ldx.q r2, r60, r36
-	ldx.q r2, r61, r37
-	ldx.q r2, r62, r38
-	ldx.q r2, r23, r39
-	st.q  r2,   0, r36
-	st.q  r2,   8, r37
-	st.q  r2,  16, r38
-	st.q  r2,  24, r39
-	addi r2, 32, r2
-	bgt/l r8, r2, tr1
-
-	blink tr0, r63	   ! return
diff --git a/arch/sh/mm/Makefile_32 b/arch/sh/mm/Makefile_32
index 095abd14592f..e295db60b91b 100644
--- a/arch/sh/mm/Makefile_32
+++ b/arch/sh/mm/Makefile_32
@@ -12,8 +12,7 @@ obj-$(CONFIG_SH7705_CACHE_32KB)	+= cache-sh7705.o
 endif
 
 mmu-y			:= tlb-nommu.o pg-nommu.o
-mmu-$(CONFIG_MMU)	:= fault_32.o clear_page.o copy_page.o tlbflush_32.o \
-			   ioremap_32.o
+mmu-$(CONFIG_MMU)	:= fault_32.o tlbflush_32.o ioremap_32.o
 
 obj-y			+= $(mmu-y)
 
diff --git a/arch/sh/mm/clear_page.S b/arch/sh/mm/clear_page.S
deleted file mode 100644
index 7a7c81ee3f01..000000000000
--- a/arch/sh/mm/clear_page.S
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * __clear_user_page, __clear_user, clear_page implementation of SuperH
- *
- * Copyright (C) 2001  Kaz Kojima
- * Copyright (C) 2001, 2002  Niibe Yutaka
- * Copyright (C) 2006  Paul Mundt
- */
-#include <linux/linkage.h>
-#include <asm/page.h>
-
-/*
- * clear_page_slow
- * @to: P1 address
- *
- * void clear_page_slow(void *to)
- */
-
-/*
- * r0 --- scratch
- * r4 --- to
- * r5 --- to + PAGE_SIZE
- */
-ENTRY(clear_page_slow)
-	mov	r4,r5
-	mov.l	.Llimit,r0
-	add	r0,r5
-	mov	#0,r0
-	!
-1:
-#if defined(CONFIG_CPU_SH3)
-	mov.l	r0,@r4
-#elif defined(CONFIG_CPU_SH4)
-	movca.l	r0,@r4
-	mov	r4,r1
-#endif
-	add	#32,r4
-	mov.l	r0,@-r4
-	mov.l	r0,@-r4
-	mov.l	r0,@-r4
-	mov.l	r0,@-r4
-	mov.l	r0,@-r4
-	mov.l	r0,@-r4
-	mov.l	r0,@-r4
-#if defined(CONFIG_CPU_SH4)
-	ocbwb	@r1
-#endif
-	cmp/eq	r5,r4
-	bf/s	1b
-	 add	#28,r4
-	!
-	rts
-	 nop
-.Llimit:	.long	(PAGE_SIZE-28)
-
-ENTRY(__clear_user)
-	!
-	mov	#0, r0
-	mov	#0xe0, r1	! 0xffffffe0
-	!
-	! r4..(r4+31)&~32 	   -------- not aligned	[ Area 0 ]
-	! (r4+31)&~32..(r4+r5)&~32 -------- aligned	[ Area 1 ]
-	! (r4+r5)&~32..r4+r5       -------- not aligned	[ Area 2 ]
-	!
-	! Clear area 0
-	mov	r4, r2
-	!
-	tst	r1, r5		! length < 32
-	bt	.Larea2		! skip to remainder
-	!
-	add	#31, r2
-	and	r1, r2
-	cmp/eq	r4, r2
-	bt	.Larea1
-	mov	r2, r3
-	sub	r4, r3
-	mov	r3, r7
-	mov	r4, r2
-	!
-.L0:	dt	r3
-0:	mov.b	r0, @r2
-	bf/s	.L0
-	 add	#1, r2
-	!
-	sub	r7, r5
-	mov	r2, r4
-.Larea1:
-	mov	r4, r3
-	add	r5, r3
-	and	r1, r3
-	cmp/hi	r2, r3
-	bf	.Larea2
-	!
-	! Clear area 1
-#if defined(CONFIG_CPU_SH4)
-1:	movca.l	r0, @r2
-#else
-1:	mov.l	r0, @r2
-#endif
-	add	#4, r2
-2:	mov.l	r0, @r2
-	add	#4, r2
-3:	mov.l	r0, @r2
-	add	#4, r2
-4:	mov.l	r0, @r2
-	add	#4, r2
-5:	mov.l	r0, @r2
-	add	#4, r2
-6:	mov.l	r0, @r2
-	add	#4, r2
-7:	mov.l	r0, @r2
-	add	#4, r2
-8:	mov.l	r0, @r2
-	add	#4, r2
-	cmp/hi	r2, r3
-	bt/s	1b
-	 nop
-	!
-	! Clear area 2
-.Larea2:
-	mov	r4, r3
-	add	r5, r3
-	cmp/hs	r3, r2
-	bt/s	.Ldone
-	 sub	r2, r3
-.L2:	dt	r3
-9:	mov.b	r0, @r2
-	bf/s	.L2
-	 add	#1, r2
-	!
-.Ldone:	rts
-	 mov	#0, r0	! return 0 as normal return
-
-	! return the number of bytes remained
-.Lbad_clear_user:
-	mov	r4, r0
-	add	r5, r0
-	rts
-	 sub	r2, r0
-
-.section __ex_table,"a"
-	.align 2
-	.long	0b, .Lbad_clear_user
-	.long	1b, .Lbad_clear_user
-	.long	2b, .Lbad_clear_user
-	.long	3b, .Lbad_clear_user
-	.long	4b, .Lbad_clear_user
-	.long	5b, .Lbad_clear_user
-	.long	6b, .Lbad_clear_user
-	.long	7b, .Lbad_clear_user
-	.long	8b, .Lbad_clear_user
-	.long	9b, .Lbad_clear_user
-.previous
diff --git a/arch/sh/mm/copy_page.S b/arch/sh/mm/copy_page.S
deleted file mode 100644
index b879545fa28b..000000000000
--- a/arch/sh/mm/copy_page.S
+++ /dev/null
@@ -1,388 +0,0 @@
-/*
- * copy_page, __copy_user_page, __copy_user implementation of SuperH
- *
- * Copyright (C) 2001  Niibe Yutaka & Kaz Kojima
- * Copyright (C) 2002  Toshinobu Sugioka
- * Copyright (C) 2006  Paul Mundt
- */
-#include <linux/linkage.h>
-#include <asm/page.h>
-
-/*
- * copy_page
- * @to: P1 address
- * @from: P1 address
- *
- * void copy_page(void *to, void *from)
- */
-
-/*
- * r0, r1, r2, r3, r4, r5, r6, r7 --- scratch 
- * r8 --- from + PAGE_SIZE
- * r9 --- not used
- * r10 --- to
- * r11 --- from
- */
-ENTRY(copy_page)
-	mov.l	r8,@-r15
-	mov.l	r10,@-r15
-	mov.l	r11,@-r15
-	mov	r4,r10
-	mov	r5,r11
-	mov	r5,r8
-	mov.l	.Lpsz,r0
-	add	r0,r8
-	!
-1:	mov.l	@r11+,r0
-	mov.l	@r11+,r1
-	mov.l	@r11+,r2
-	mov.l	@r11+,r3
-	mov.l	@r11+,r4
-	mov.l	@r11+,r5
-	mov.l	@r11+,r6
-	mov.l	@r11+,r7
-#if defined(CONFIG_CPU_SH3)
-	mov.l	r0,@r10
-#elif defined(CONFIG_CPU_SH4)
-	movca.l	r0,@r10
-	mov	r10,r0
-#endif
-	add	#32,r10
-	mov.l	r7,@-r10
-	mov.l	r6,@-r10
-	mov.l	r5,@-r10
-	mov.l	r4,@-r10
-	mov.l	r3,@-r10
-	mov.l	r2,@-r10
-	mov.l	r1,@-r10
-#if defined(CONFIG_CPU_SH4)
-	ocbwb	@r0
-#endif
-	cmp/eq	r11,r8
-	bf/s	1b
-	 add	#28,r10
-	!
-	mov.l	@r15+,r11
-	mov.l	@r15+,r10
-	mov.l	@r15+,r8
-	rts
-	 nop
-
-	.align 2
-.Lpsz:	.long	PAGE_SIZE
-/*
- * __kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n);
- * Return the number of bytes NOT copied
- */
-#define EX(...)			\
-	9999: __VA_ARGS__ ;		\
-	.section __ex_table, "a";	\
-	.long 9999b, 6000f	;	\
-	.previous
-ENTRY(__copy_user)
-	! Check if small number of bytes
-	mov	#11,r0
-	mov	r4,r3
-	cmp/gt	r0,r6		! r6 (len) > r0 (11)
-	bf/s	.L_cleanup_loop_no_pop
-	 add	r6,r3		! last destination address
-
-	! Calculate bytes needed to align to src
-	mov.l	r11,@-r15
-	neg	r5,r0
-	mov.l	r10,@-r15
-	add	#4,r0
-	mov.l	r9,@-r15
-	and	#3,r0
-	mov.l	r8,@-r15
-	tst	r0,r0
-	bt	2f
-
-1:
-	! Copy bytes to long word align src
-EX(	mov.b	@r5+,r1		)
-	dt	r0
-	add	#-1,r6
-EX(	mov.b	r1,@r4		)
-	bf/s	1b
-	 add	#1,r4
-
-	! Jump to appropriate routine depending on dest
-2:	mov	#3,r1
-	mov	r6, r2
-	and	r4,r1
-	shlr2	r2
-	shll2	r1
-	mova	.L_jump_tbl,r0
-	mov.l	@(r0,r1),r1
-	jmp	@r1
-	 nop
-
-	.align 2
-.L_jump_tbl:
-	.long	.L_dest00
-	.long	.L_dest01
-	.long	.L_dest10
-	.long	.L_dest11
-
-/*
- * Come here if there are less than 12 bytes to copy
- *
- * Keep the branch target close, so the bf/s callee doesn't overflow
- * and result in a more expensive branch being inserted. This is the
- * fast-path for small copies, the jump via the jump table will hit the
- * default slow-path cleanup. -PFM.
- */
-.L_cleanup_loop_no_pop:
-	tst	r6,r6		! Check explicitly for zero
-	bt	1f
-
-2:
-EX(	mov.b	@r5+,r0		)
-	dt	r6
-EX(	mov.b	r0,@r4		)
-	bf/s	2b
-	 add	#1,r4
-
-1:	mov	#0,r0		! normal return
-5000:
-
-# Exception handler:
-.section .fixup, "ax"
-6000:
-	mov.l	8000f,r1
-	mov	r3,r0
-	jmp	@r1
-	 sub	r4,r0
-	.align	2
-8000:	.long	5000b
-
-.previous
-	rts
-	 nop
-
-! Destination = 00
-
-.L_dest00:
-	! Skip the large copy for small transfers
-	mov	#(32+32-4), r0
-	cmp/gt	r6, r0		! r0 (60) > r6 (len)
-	bt	1f
-
-	! Align dest to a 32 byte boundary
-	neg	r4,r0
-	add	#0x20, r0
-	and	#0x1f, r0
-	tst	r0, r0
-	bt	2f
-
-	sub	r0, r6
-	shlr2	r0
-3:
-EX(	mov.l	@r5+,r1		)
-	dt	r0
-EX(	mov.l	r1,@r4		)
-	bf/s	3b
-	 add	#4,r4
-
-2:
-EX(	mov.l	@r5+,r0		)
-EX(	mov.l	@r5+,r1		)
-EX(	mov.l	@r5+,r2		)
-EX(	mov.l	@r5+,r7		)
-EX(	mov.l	@r5+,r8		)
-EX(	mov.l	@r5+,r9		)
-EX(	mov.l	@r5+,r10	)
-EX(	mov.l	@r5+,r11	)
-#ifdef CONFIG_CPU_SH4
-EX(	movca.l	r0,@r4		)
-#else
-EX(	mov.l	r0,@r4		)
-#endif
-	add	#-32, r6
-EX(	mov.l	r1,@(4,r4)	)
-	mov	#32, r0
-EX(	mov.l	r2,@(8,r4)	)
-	cmp/gt	r6, r0		! r0 (32) > r6 (len)
-EX(	mov.l	r7,@(12,r4)	)
-EX(	mov.l	r8,@(16,r4)	)
-EX(	mov.l	r9,@(20,r4)	)
-EX(	mov.l	r10,@(24,r4)	)
-EX(	mov.l	r11,@(28,r4)	)
-	bf/s	2b
-	 add	#32,r4
-
-1:	mov	r6, r0
-	shlr2	r0
-	tst	r0, r0
-	bt	.L_cleanup
-1:
-EX(	mov.l	@r5+,r1		)
-	dt	r0
-EX(	mov.l	r1,@r4		)
-	bf/s	1b
-	 add	#4,r4
-
-	bra	.L_cleanup
-	 nop
-
-! Destination = 10
-
-.L_dest10:
-	mov	r2,r7
-	shlr2	r7
-	shlr	r7
-	tst	r7,r7
-	mov	#7,r0
-	bt/s	1f
-	 and	r0,r2
-2:
-	dt	r7
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-EX(	mov.l	@r5+,r0		)
-EX(	mov.l	@r5+,r1		)
-EX(	mov.l	@r5+,r8		)
-EX(	mov.l	@r5+,r9		)
-EX(	mov.l	@r5+,r10	)
-EX(	mov.w	r0,@r4		)
-	add	#2,r4
-	xtrct	r1,r0
-	xtrct	r8,r1
-	xtrct	r9,r8
-	xtrct	r10,r9
-
-EX(	mov.l	r0,@r4		)
-EX(	mov.l	r1,@(4,r4)	)
-EX(	mov.l	r8,@(8,r4)	)
-EX(	mov.l	r9,@(12,r4)	)
-
-EX(	mov.l	@r5+,r1		)
-EX(	mov.l	@r5+,r8		)
-EX(	mov.l	@r5+,r0		)
-	xtrct	r1,r10
-	xtrct	r8,r1
-	xtrct	r0,r8
-	shlr16	r0
-EX(	mov.l	r10,@(16,r4)	)
-EX(	mov.l	r1,@(20,r4)	)
-EX(	mov.l	r8,@(24,r4)	)
-EX(	mov.w	r0,@(28,r4)	)
-	bf/s	2b
-	 add	#30,r4
-#else
-EX(	mov.l	@(28,r5),r0	)
-EX(	mov.l	@(24,r5),r8	)
-EX(	mov.l	@(20,r5),r9	)
-EX(	mov.l	@(16,r5),r10	)
-EX(	mov.w	r0,@(30,r4)	)
-	add	#-2,r4
-	xtrct	r8,r0
-	xtrct	r9,r8
-	xtrct	r10,r9
-EX(	mov.l	r0,@(28,r4)	)
-EX(	mov.l	r8,@(24,r4)	)
-EX(	mov.l	r9,@(20,r4)	)
-
-EX(	mov.l	@(12,r5),r0	)
-EX(	mov.l	@(8,r5),r8	)
-	xtrct	r0,r10
-EX(	mov.l	@(4,r5),r9	)
-	mov.l	r10,@(16,r4)
-EX(	mov.l	@r5,r10		)
-	xtrct	r8,r0
-	xtrct	r9,r8
-	xtrct	r10,r9
-EX(	mov.l	r0,@(12,r4)	)
-EX(	mov.l	r8,@(8,r4)	)
-	swap.w	r10,r0
-EX(	mov.l	r9,@(4,r4)	)
-EX(	mov.w	r0,@(2,r4)	)
-
-	add	#32,r5
-	bf/s	2b
-	 add	#34,r4
-#endif
-	tst	r2,r2
-	bt	.L_cleanup
-
-1:	! Read longword, write two words per iteration
-EX(	mov.l	@r5+,r0		)
-	dt	r2
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-EX(	mov.w	r0,@r4		)
-	shlr16	r0
-EX(	mov.w 	r0,@(2,r4)	)
-#else
-EX(	mov.w	r0,@(2,r4)	)
-	shlr16	r0
-EX(	mov.w	r0,@r4		)
-#endif
-	bf/s	1b
-	 add	#4,r4
-
-	bra	.L_cleanup
-	 nop
-
-! Destination = 01 or 11
-
-.L_dest01:
-.L_dest11:
-	! Read longword, write byte, word, byte per iteration
-EX(	mov.l	@r5+,r0		)
-	dt	r2
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-EX(	mov.b	r0,@r4		)
-	shlr8	r0
-	add	#1,r4
-EX(	mov.w	r0,@r4		)
-	shlr16	r0
-EX(	mov.b	r0,@(2,r4)	)
-	bf/s	.L_dest01
-	 add	#3,r4
-#else
-EX(	mov.b	r0,@(3,r4)	)
-	shlr8	r0
-	swap.w	r0,r7
-EX(	mov.b	r7,@r4		)
-	add	#1,r4
-EX(	mov.w	r0,@r4		)
-	bf/s	.L_dest01
-	 add	#3,r4
-#endif
-
-! Cleanup last few bytes
-.L_cleanup:
-	mov	r6,r0
-	and	#3,r0
-	tst	r0,r0
-	bt	.L_exit
-	mov	r0,r6
-
-.L_cleanup_loop:
-EX(	mov.b	@r5+,r0		)
-	dt	r6
-EX(	mov.b	r0,@r4		)
-	bf/s	.L_cleanup_loop
-	 add	#1,r4
-
-.L_exit:
-	mov	#0,r0		! normal return
-
-5000:
-
-# Exception handler:
-.section .fixup, "ax"
-6000:
-	mov.l	8000f,r1
-	mov	r3,r0
-	jmp	@r1
-	 sub	r4,r0
-	.align	2
-8000:	.long	5000b
-
-.previous
-	mov.l	@r15+,r8
-	mov.l	@r15+,r9
-	mov.l	@r15+,r10
-	rts
-	 mov.l	@r15+,r11
-- 
cgit v1.2.3-59-g8ed1b


From 18bc81319b438ae3266e1b2653ce874912dae891 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 23:16:33 +0900
Subject: sh: Get the mach-cayman IRQ support building.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/irq/Makefile        |   1 +
 arch/sh/kernel/cpu/irq/intc-sh5.c      | 257 +++++++++++++++++++++++++++++++
 arch/sh/kernel/cpu/sh5/Makefile        |   4 -
 arch/sh/kernel/cpu/sh5/setup-sh5-101.c |  15 --
 arch/sh/mach-cayman/Makefile           |   8 +-
 arch/sh/mach-cayman/iomap.c            |  22 ---
 arch/sh/mach-cayman/irq.c              |  26 ++--
 arch/sh/mach-cayman/setup.c            |  94 +++---------
 arch/sh64/kernel/irq_intc.c            | 272 ---------------------------------
 include/asm-sh/cpu-sh5/irq.h           |  28 +---
 include/asm-sh/platform.h              |  64 --------
 11 files changed, 295 insertions(+), 496 deletions(-)
 create mode 100644 arch/sh/kernel/cpu/irq/intc-sh5.c
 delete mode 100644 arch/sh/kernel/cpu/sh5/setup-sh5-101.c
 delete mode 100644 arch/sh/mach-cayman/iomap.c
 delete mode 100644 arch/sh64/kernel/irq_intc.c
 delete mode 100644 include/asm-sh/platform.h

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/irq/Makefile b/arch/sh/kernel/cpu/irq/Makefile
index 81d37e948b86..cc1836e47a5d 100644
--- a/arch/sh/kernel/cpu/irq/Makefile
+++ b/arch/sh/kernel/cpu/irq/Makefile
@@ -4,5 +4,6 @@
 obj-y	+= intc.o
 
 obj-$(CONFIG_SUPERH32)			+= imask.o
+obj-$(CONFIG_CPU_SH5)			+= intc-sh5.o
 obj-$(CONFIG_CPU_HAS_IPR_IRQ)		+= ipr.o
 obj-$(CONFIG_CPU_HAS_MASKREG_IRQ)	+= maskreg.o
diff --git a/arch/sh/kernel/cpu/irq/intc-sh5.c b/arch/sh/kernel/cpu/irq/intc-sh5.c
new file mode 100644
index 000000000000..49b845a31fff
--- /dev/null
+++ b/arch/sh/kernel/cpu/irq/intc-sh5.c
@@ -0,0 +1,257 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/kernel/irq_intc.c
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003  Paul Mundt
+ *
+ * Interrupt Controller support for SH5 INTC.
+ * Per-interrupt selective. IRLM=0 (Fixed priority) is not
+ * supported being useless without a cascaded interrupt
+ * controller.
+ *
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+#include <asm/cpu/irq.h>
+#include <asm/page.h>
+
+/*
+ * Maybe the generic Peripheral block could move to a more
+ * generic include file. INTC Block will be defined here
+ * and only here to make INTC self-contained in a single
+ * file.
+ */
+#define	INTC_BLOCK_OFFSET	0x01000000
+
+/* Base */
+#define INTC_BASE		PHYS_PERIPHERAL_BLOCK + \
+				INTC_BLOCK_OFFSET
+
+/* Address */
+#define INTC_ICR_SET		(intc_virt + 0x0)
+#define INTC_ICR_CLEAR		(intc_virt + 0x8)
+#define INTC_INTPRI_0		(intc_virt + 0x10)
+#define INTC_INTSRC_0		(intc_virt + 0x50)
+#define INTC_INTSRC_1		(intc_virt + 0x58)
+#define INTC_INTREQ_0		(intc_virt + 0x60)
+#define INTC_INTREQ_1		(intc_virt + 0x68)
+#define INTC_INTENB_0		(intc_virt + 0x70)
+#define INTC_INTENB_1		(intc_virt + 0x78)
+#define INTC_INTDSB_0		(intc_virt + 0x80)
+#define INTC_INTDSB_1		(intc_virt + 0x88)
+
+#define INTC_ICR_IRLM		0x1
+#define	INTC_INTPRI_PREGS	8		/* 8 Priority Registers */
+#define	INTC_INTPRI_PPREG	8		/* 8 Priorities per Register */
+
+
+/*
+ * Mapper between the vector ordinal and the IRQ number
+ * passed to kernel/device drivers.
+ */
+int intc_evt_to_irq[(0xE20/0x20)+1] = {
+	-1, -1, -1, -1, -1, -1, -1, -1,	/* 0x000 - 0x0E0 */
+	-1, -1, -1, -1, -1, -1, -1, -1,	/* 0x100 - 0x1E0 */
+	 0,  0,  0,  0,  0,  1,  0,  0,	/* 0x200 - 0x2E0 */
+	 2,  0,  0,  3,  0,  0,  0, -1,	/* 0x300 - 0x3E0 */
+	32, 33, 34, 35, 36, 37, 38, -1,	/* 0x400 - 0x4E0 */
+	-1, -1, -1, 63, -1, -1, -1, -1,	/* 0x500 - 0x5E0 */
+	-1, -1, 18, 19, 20, 21, 22, -1,	/* 0x600 - 0x6E0 */
+	39, 40, 41, 42, -1, -1, -1, -1,	/* 0x700 - 0x7E0 */
+	 4,  5,  6,  7, -1, -1, -1, -1,	/* 0x800 - 0x8E0 */
+	-1, -1, -1, -1, -1, -1, -1, -1,	/* 0x900 - 0x9E0 */
+	12, 13, 14, 15, 16, 17, -1, -1,	/* 0xA00 - 0xAE0 */
+	-1, -1, -1, -1, -1, -1, -1, -1,	/* 0xB00 - 0xBE0 */
+	-1, -1, -1, -1, -1, -1, -1, -1,	/* 0xC00 - 0xCE0 */
+	-1, -1, -1, -1, -1, -1, -1, -1,	/* 0xD00 - 0xDE0 */
+	-1, -1				/* 0xE00 - 0xE20 */
+};
+
+/*
+ * Opposite mapper.
+ */
+static int IRQ_to_vectorN[NR_INTC_IRQS] = {
+	0x12, 0x15, 0x18, 0x1B, 0x40, 0x41, 0x42, 0x43, /*  0- 7 */
+	  -1,   -1,   -1,   -1, 0x50, 0x51, 0x52, 0x53,	/*  8-15 */
+	0x54, 0x55, 0x32, 0x33, 0x34, 0x35, 0x36,   -1, /* 16-23 */
+	  -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1, /* 24-31 */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x38,	/* 32-39 */
+        0x39, 0x3A, 0x3B,   -1,   -1,   -1,   -1,   -1, /* 40-47 */
+	  -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1, /* 48-55 */
+	  -1,   -1,   -1,   -1,   -1,   -1,   -1, 0x2B, /* 56-63 */
+
+};
+
+static unsigned long intc_virt;
+
+static unsigned int startup_intc_irq(unsigned int irq);
+static void shutdown_intc_irq(unsigned int irq);
+static void enable_intc_irq(unsigned int irq);
+static void disable_intc_irq(unsigned int irq);
+static void mask_and_ack_intc(unsigned int);
+static void end_intc_irq(unsigned int irq);
+
+static struct hw_interrupt_type intc_irq_type = {
+	.typename = "INTC",
+	.startup = startup_intc_irq,
+	.shutdown = shutdown_intc_irq,
+	.enable = enable_intc_irq,
+	.disable = disable_intc_irq,
+	.ack = mask_and_ack_intc,
+	.end = end_intc_irq
+};
+
+static int irlm;		/* IRL mode */
+
+static unsigned int startup_intc_irq(unsigned int irq)
+{
+	enable_intc_irq(irq);
+	return 0; /* never anything pending */
+}
+
+static void shutdown_intc_irq(unsigned int irq)
+{
+	disable_intc_irq(irq);
+}
+
+static void enable_intc_irq(unsigned int irq)
+{
+	unsigned long reg;
+	unsigned long bitmask;
+
+	if ((irq <= IRQ_IRL3) && (irlm == NO_PRIORITY))
+		printk("Trying to use straight IRL0-3 with an encoding platform.\n");
+
+	if (irq < 32) {
+		reg = INTC_INTENB_0;
+		bitmask = 1 << irq;
+	} else {
+		reg = INTC_INTENB_1;
+		bitmask = 1 << (irq - 32);
+	}
+
+	ctrl_outl(bitmask, reg);
+}
+
+static void disable_intc_irq(unsigned int irq)
+{
+	unsigned long reg;
+	unsigned long bitmask;
+
+	if (irq < 32) {
+		reg = INTC_INTDSB_0;
+		bitmask = 1 << irq;
+	} else {
+		reg = INTC_INTDSB_1;
+		bitmask = 1 << (irq - 32);
+	}
+
+	ctrl_outl(bitmask, reg);
+}
+
+static void mask_and_ack_intc(unsigned int irq)
+{
+	disable_intc_irq(irq);
+}
+
+static void end_intc_irq(unsigned int irq)
+{
+	enable_intc_irq(irq);
+}
+
+/* For future use, if we ever support IRLM=0) */
+void make_intc_irq(unsigned int irq)
+{
+	disable_irq_nosync(irq);
+	irq_desc[irq].chip = &intc_irq_type;
+	disable_intc_irq(irq);
+}
+
+#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL)
+int intc_irq_describe(char* p, int irq)
+{
+	if (irq < NR_INTC_IRQS)
+		return sprintf(p, "(0x%3x)", IRQ_to_vectorN[irq]*0x20);
+	else
+		return 0;
+}
+#endif
+
+void __init plat_irq_setup(void)
+{
+        unsigned long long __dummy0, __dummy1=~0x00000000100000f0;
+	unsigned long reg;
+	unsigned long data;
+	int i;
+
+	intc_virt = onchip_remap(INTC_BASE, 1024, "INTC");
+	if (!intc_virt) {
+		panic("Unable to remap INTC\n");
+	}
+
+
+	/* Set default: per-line enable/disable, priority driven ack/eoi */
+	for (i = 0; i < NR_INTC_IRQS; i++) {
+		if (platform_int_priority[i] != NO_PRIORITY) {
+			irq_desc[i].chip = &intc_irq_type;
+		}
+	}
+
+
+	/* Disable all interrupts and set all priorities to 0 to avoid trouble */
+	ctrl_outl(-1, INTC_INTDSB_0);
+	ctrl_outl(-1, INTC_INTDSB_1);
+
+	for (reg = INTC_INTPRI_0, i = 0; i < INTC_INTPRI_PREGS; i++, reg += 8)
+		ctrl_outl( NO_PRIORITY, reg);
+
+
+	/* Set IRLM */
+	/* If all the priorities are set to 'no priority', then
+	 * assume we are using encoded mode.
+	 */
+	irlm = platform_int_priority[IRQ_IRL0] + platform_int_priority[IRQ_IRL1] + \
+		platform_int_priority[IRQ_IRL2] + platform_int_priority[IRQ_IRL3];
+
+	if (irlm == NO_PRIORITY) {
+		/* IRLM = 0 */
+		reg = INTC_ICR_CLEAR;
+		i = IRQ_INTA;
+		printk("Trying to use encoded IRL0-3. IRLs unsupported.\n");
+	} else {
+		/* IRLM = 1 */
+		reg = INTC_ICR_SET;
+		i = IRQ_IRL0;
+	}
+	ctrl_outl(INTC_ICR_IRLM, reg);
+
+	/* Set interrupt priorities according to platform description */
+	for (data = 0, reg = INTC_INTPRI_0; i < NR_INTC_IRQS; i++) {
+		data |= platform_int_priority[i] << ((i % INTC_INTPRI_PPREG) * 4);
+		if ((i % INTC_INTPRI_PPREG) == (INTC_INTPRI_PPREG - 1)) {
+			/* Upon the 7th, set Priority Register */
+			ctrl_outl(data, reg);
+			data = 0;
+			reg += 8;
+		}
+	}
+
+	/*
+	 * And now let interrupts come in.
+	 * sti() is not enough, we need to
+	 * lower priority, too.
+	 */
+        __asm__ __volatile__("getcon    " __SR ", %0\n\t"
+                             "and       %0, %1, %0\n\t"
+                             "putcon    %0, " __SR "\n\t"
+                             : "=&r" (__dummy0)
+                             : "r" (__dummy1));
+}
diff --git a/arch/sh/kernel/cpu/sh5/Makefile b/arch/sh/kernel/cpu/sh5/Makefile
index 0ef257b72e5d..8646363e9ded 100644
--- a/arch/sh/kernel/cpu/sh5/Makefile
+++ b/arch/sh/kernel/cpu/sh5/Makefile
@@ -5,7 +5,3 @@ obj-y := entry.o probe.o switchto.o
 
 obj-$(CONFIG_SH_FPU)		+= fpu.o
 obj-$(CONFIG_KALLSYMS)		+= unwind.o
-
-# CPU subtype setup
-obj-$(CONFIG_CPU_SUBTYPE_SH5_101)	+= setup-sh5-101.o
-obj-$(CONFIG_CPU_SUBTYPE_SH5_103)	+= setup-sh5-101.o
diff --git a/arch/sh/kernel/cpu/sh5/setup-sh5-101.c b/arch/sh/kernel/cpu/sh5/setup-sh5-101.c
deleted file mode 100644
index 3680012d7109..000000000000
--- a/arch/sh/kernel/cpu/sh5/setup-sh5-101.c
+++ /dev/null
@@ -1,15 +0,0 @@
-/*
- * SH5-101 Setup
- *
- *  Copyright (C) 2007  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-
-void __init plat_irq_setup(void)
-{
-	/* do nothing - all IRL interrupts are handled by the board code */
-}
diff --git a/arch/sh/mach-cayman/Makefile b/arch/sh/mach-cayman/Makefile
index 67a2258bf8c4..489a8f867368 100644
--- a/arch/sh/mach-cayman/Makefile
+++ b/arch/sh/mach-cayman/Makefile
@@ -1,11 +1,5 @@
 #
 # Makefile for the Hitachi Cayman specific parts of the kernel
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-obj-y := setup.o irq.o iomap.o
+obj-y := setup.o irq.o
 obj-$(CONFIG_HEARTBEAT)	+= led.o
-
diff --git a/arch/sh/mach-cayman/iomap.c b/arch/sh/mach-cayman/iomap.c
deleted file mode 100644
index a5c645f02d57..000000000000
--- a/arch/sh/mach-cayman/iomap.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * arch/sh64/mach-cayman/iomap.c
- *
- * Cayman iomap interface
- *
- * Copyright (C) 2004  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <asm/io.h>
-#include <asm/cayman.h>
-
-void __iomem *ioport_map(unsigned long port, unsigned int len)
-{
-	if (port < 0x400)
-		return (void __iomem *)((port << 2) | smsc_superio_virt);
-
-	return (void __iomem *)port;
-}
-
diff --git a/arch/sh/mach-cayman/irq.c b/arch/sh/mach-cayman/irq.c
index aaad36d37d1f..30ec7bebfaf1 100644
--- a/arch/sh/mach-cayman/irq.c
+++ b/arch/sh/mach-cayman/irq.c
@@ -1,24 +1,26 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/irq_cayman.c
- *
- * SH-5 Cayman Interrupt Support
+ * arch/sh/mach-cayman/irq.c - SH-5 Cayman Interrupt Support
  *
  * This file handles the board specific parts of the Cayman interrupt system
  *
  * Copyright (C) 2002 Stuart Menefy
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
-
-#include <asm/irq.h>
-#include <asm/page.h>
-#include <asm/io.h>
+#include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 #include <linux/signal.h>
-#include <asm/cayman.h>
+#include <asm/cpu/irq.h>
+#include <asm/page.h>
+
+/* Setup for the SMSC FDC37C935 / LAN91C100FD */
+#define SMSC_IRQ         IRQ_IRL1
+
+/* Setup for PCI Bus 2, which transmits interrupts via the EPLD */
+#define PCI2_IRQ         IRQ_IRL3
 
 unsigned long epld_virt;
 
diff --git a/arch/sh/mach-cayman/setup.c b/arch/sh/mach-cayman/setup.c
index 726c520d7eb9..8c9fa472d8f5 100644
--- a/arch/sh/mach-cayman/setup.c
+++ b/arch/sh/mach-cayman/setup.c
@@ -1,28 +1,19 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mach-cayman/setup.c
+ * arch/sh/mach-cayman/setup.c
  *
  * SH5 Cayman support
  *
- * This file handles the architecture-dependent parts of initialization
+ * Copyright (C) 2002  David J. Mckay & Benedict Gaster
+ * Copyright (C) 2003 - 2007  Paul Mundt
  *
- * Copyright David J. Mckay.
- * Needs major work!
- *
- * benedict.gaster@superh.com:	 3rd May 2002
- *    Added support for ramdisk, removing statically linked romfs at the same time.
- *
- * lethal@linux-sh.org:          15th May 2003
- *    Use the generic procfs cpuinfo interface, just return a valid board name.
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 #include <linux/init.h>
+#include <linux/io.h>
 #include <linux/kernel.h>
-#include <asm/platform.h>
-#include <asm/irq.h>
-#include <asm/io.h>
+#include <asm/cpu/irq.h>
 
 /*
  * Platform Dependent Interrupt Priorities.
@@ -96,42 +87,6 @@
 
 unsigned long smsc_superio_virt;
 
-/*
- * Platform dependent structures: maps and parms block.
- */
-struct resource io_resources[] = {
-	/* To be updated with external devices */
-};
-
-struct resource kram_resources[] = {
-	/* These must be last in the array */
-	{ .name = "Kernel code", .start = 0, .end = 0 },
-	/* These must be last in the array */
-	{ .name = "Kernel data", .start = 0, .end = 0 }
-};
-
-struct resource xram_resources[] = {
-	/* To be updated with external devices */
-};
-
-struct resource rom_resources[] = {
-	/* To be updated with external devices */
-};
-
-struct sh64_platform platform_parms = {
-	.readonly_rootfs =	1,
-	.initial_root_dev =	0x0100,
-	.loader_type =		1,
-	.io_res_p =		io_resources,
-	.io_res_count =		ARRAY_SIZE(io_resources),
-	.kram_res_p =		kram_resources,
-	.kram_res_count =	ARRAY_SIZE(kram_resources),
-	.xram_res_p =		xram_resources,
-	.xram_res_count =	ARRAY_SIZE(xram_resources),
-	.rom_res_p =		rom_resources,
-	.rom_res_count =	ARRAY_SIZE(rom_resources),
-};
-
 int platform_int_priority[NR_INTC_IRQS] = {
 	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
 	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
@@ -210,30 +165,23 @@ static int __init smsc_superio_setup(void)
 
 	return 0;
 }
-
-/* This is grotty, but, because kernel is always referenced on the link line
- * before any devices, this is safe.
- */
 __initcall(smsc_superio_setup);
 
-void __init platform_setup(void)
-{
-	/* Cayman platform leaves the decision to head.S, for now */
-	platform_parms.fpu_flags = fpu_in_use;
-}
-
-void __init platform_monitor(void)
+static void __iomem *cayman_ioport_map(unsigned long port, unsigned int len)
 {
-	/* Nothing yet .. */
-}
+	if (port < 0x400) {
+		extern unsigned long smsc_superio_virt;
+		return (void __iomem *)((port << 2) | smsc_superio_virt);
+	}
 
-void __init platform_reserve(void)
-{
-	/* Nothing yet .. */
+	return (void __iomem *)port;
 }
 
-const char *get_system_type(void)
-{
-	return "Hitachi Cayman";
-}
+extern void init_cayman_irq(void);
 
+static struct sh_machine_vector mv_cayman __initmv = {
+	.mv_name		= "Hitachi Cayman",
+	.mv_nr_irqs		= 64,
+	.mv_ioport_map		= cayman_ioport_map,
+	.mv_init_irq		= init_cayman_irq,
+};
diff --git a/arch/sh64/kernel/irq_intc.c b/arch/sh64/kernel/irq_intc.c
deleted file mode 100644
index 3b63a93198f2..000000000000
--- a/arch/sh64/kernel/irq_intc.c
+++ /dev/null
@@ -1,272 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/irq_intc.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003  Paul Mundt
- *
- * Interrupt Controller support for SH5 INTC.
- * Per-interrupt selective. IRLM=0 (Fixed priority) is not
- * supported being useless without a cascaded interrupt
- * controller.
- *
- */
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-#include <linux/bitops.h>       /* this includes also <asm/registers.h */
-                                /* which is required to remap register */
-                                /* names used into __asm__ blocks...   */
-
-#include <asm/hardware.h>
-#include <asm/platform.h>
-#include <asm/page.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
-/*
- * Maybe the generic Peripheral block could move to a more
- * generic include file. INTC Block will be defined here
- * and only here to make INTC self-contained in a single
- * file.
- */
-#define	INTC_BLOCK_OFFSET	0x01000000
-
-/* Base */
-#define INTC_BASE		PHYS_PERIPHERAL_BLOCK + \
-				INTC_BLOCK_OFFSET
-
-/* Address */
-#define INTC_ICR_SET		(intc_virt + 0x0)
-#define INTC_ICR_CLEAR		(intc_virt + 0x8)
-#define INTC_INTPRI_0		(intc_virt + 0x10)
-#define INTC_INTSRC_0		(intc_virt + 0x50)
-#define INTC_INTSRC_1		(intc_virt + 0x58)
-#define INTC_INTREQ_0		(intc_virt + 0x60)
-#define INTC_INTREQ_1		(intc_virt + 0x68)
-#define INTC_INTENB_0		(intc_virt + 0x70)
-#define INTC_INTENB_1		(intc_virt + 0x78)
-#define INTC_INTDSB_0		(intc_virt + 0x80)
-#define INTC_INTDSB_1		(intc_virt + 0x88)
-
-#define INTC_ICR_IRLM		0x1
-#define	INTC_INTPRI_PREGS	8		/* 8 Priority Registers */
-#define	INTC_INTPRI_PPREG	8		/* 8 Priorities per Register */
-
-
-/*
- * Mapper between the vector ordinal and the IRQ number
- * passed to kernel/device drivers.
- */
-int intc_evt_to_irq[(0xE20/0x20)+1] = {
-	-1, -1, -1, -1, -1, -1, -1, -1,	/* 0x000 - 0x0E0 */
-	-1, -1, -1, -1, -1, -1, -1, -1,	/* 0x100 - 0x1E0 */
-	 0,  0,  0,  0,  0,  1,  0,  0,	/* 0x200 - 0x2E0 */
-	 2,  0,  0,  3,  0,  0,  0, -1,	/* 0x300 - 0x3E0 */
-	32, 33, 34, 35, 36, 37, 38, -1,	/* 0x400 - 0x4E0 */
-	-1, -1, -1, 63, -1, -1, -1, -1,	/* 0x500 - 0x5E0 */
-	-1, -1, 18, 19, 20, 21, 22, -1,	/* 0x600 - 0x6E0 */
-	39, 40, 41, 42, -1, -1, -1, -1,	/* 0x700 - 0x7E0 */
-	 4,  5,  6,  7, -1, -1, -1, -1,	/* 0x800 - 0x8E0 */
-	-1, -1, -1, -1, -1, -1, -1, -1,	/* 0x900 - 0x9E0 */
-	12, 13, 14, 15, 16, 17, -1, -1,	/* 0xA00 - 0xAE0 */
-	-1, -1, -1, -1, -1, -1, -1, -1,	/* 0xB00 - 0xBE0 */
-	-1, -1, -1, -1, -1, -1, -1, -1,	/* 0xC00 - 0xCE0 */
-	-1, -1, -1, -1, -1, -1, -1, -1,	/* 0xD00 - 0xDE0 */
-	-1, -1				/* 0xE00 - 0xE20 */
-};
-
-/*
- * Opposite mapper.
- */
-static int IRQ_to_vectorN[NR_INTC_IRQS] = {
-	0x12, 0x15, 0x18, 0x1B, 0x40, 0x41, 0x42, 0x43, /*  0- 7 */
-	  -1,   -1,   -1,   -1, 0x50, 0x51, 0x52, 0x53,	/*  8-15 */
-	0x54, 0x55, 0x32, 0x33, 0x34, 0x35, 0x36,   -1, /* 16-23 */
-	  -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1, /* 24-31 */
-	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x38,	/* 32-39 */
-        0x39, 0x3A, 0x3B,   -1,   -1,   -1,   -1,   -1, /* 40-47 */
-	  -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1, /* 48-55 */
-	  -1,   -1,   -1,   -1,   -1,   -1,   -1, 0x2B, /* 56-63 */
-
-};
-
-static unsigned long intc_virt;
-
-static unsigned int startup_intc_irq(unsigned int irq);
-static void shutdown_intc_irq(unsigned int irq);
-static void enable_intc_irq(unsigned int irq);
-static void disable_intc_irq(unsigned int irq);
-static void mask_and_ack_intc(unsigned int);
-static void end_intc_irq(unsigned int irq);
-
-static struct hw_interrupt_type intc_irq_type = {
-	.typename = "INTC",
-	.startup = startup_intc_irq,
-	.shutdown = shutdown_intc_irq,
-	.enable = enable_intc_irq,
-	.disable = disable_intc_irq,
-	.ack = mask_and_ack_intc,
-	.end = end_intc_irq
-};
-
-static int irlm;		/* IRL mode */
-
-static unsigned int startup_intc_irq(unsigned int irq)
-{
-	enable_intc_irq(irq);
-	return 0; /* never anything pending */
-}
-
-static void shutdown_intc_irq(unsigned int irq)
-{
-	disable_intc_irq(irq);
-}
-
-static void enable_intc_irq(unsigned int irq)
-{
-	unsigned long reg;
-	unsigned long bitmask;
-
-	if ((irq <= IRQ_IRL3) && (irlm == NO_PRIORITY))
-		printk("Trying to use straight IRL0-3 with an encoding platform.\n");
-
-	if (irq < 32) {
-		reg = INTC_INTENB_0;
-		bitmask = 1 << irq;
-	} else {
-		reg = INTC_INTENB_1;
-		bitmask = 1 << (irq - 32);
-	}
-
-	ctrl_outl(bitmask, reg);
-}
-
-static void disable_intc_irq(unsigned int irq)
-{
-	unsigned long reg;
-	unsigned long bitmask;
-
-	if (irq < 32) {
-		reg = INTC_INTDSB_0;
-		bitmask = 1 << irq;
-	} else {
-		reg = INTC_INTDSB_1;
-		bitmask = 1 << (irq - 32);
-	}
-
-	ctrl_outl(bitmask, reg);
-}
-
-static void mask_and_ack_intc(unsigned int irq)
-{
-	disable_intc_irq(irq);
-}
-
-static void end_intc_irq(unsigned int irq)
-{
-	enable_intc_irq(irq);
-}
-
-/* For future use, if we ever support IRLM=0) */
-void make_intc_irq(unsigned int irq)
-{
-	disable_irq_nosync(irq);
-	irq_desc[irq].chip = &intc_irq_type;
-	disable_intc_irq(irq);
-}
-
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL)
-int intc_irq_describe(char* p, int irq)
-{
-	if (irq < NR_INTC_IRQS)
-		return sprintf(p, "(0x%3x)", IRQ_to_vectorN[irq]*0x20);
-	else
-		return 0;
-}
-#endif
-
-void __init init_IRQ(void)
-{
-        unsigned long long __dummy0, __dummy1=~0x00000000100000f0;
-	unsigned long reg;
-	unsigned long data;
-	int i;
-
-	intc_virt = onchip_remap(INTC_BASE, 1024, "INTC");
-	if (!intc_virt) {
-		panic("Unable to remap INTC\n");
-	}
-
-
-	/* Set default: per-line enable/disable, priority driven ack/eoi */
-	for (i = 0; i < NR_INTC_IRQS; i++) {
-		if (platform_int_priority[i] != NO_PRIORITY) {
-			irq_desc[i].chip = &intc_irq_type;
-		}
-	}
-
-
-	/* Disable all interrupts and set all priorities to 0 to avoid trouble */
-	ctrl_outl(-1, INTC_INTDSB_0);
-	ctrl_outl(-1, INTC_INTDSB_1);
-
-	for (reg = INTC_INTPRI_0, i = 0; i < INTC_INTPRI_PREGS; i++, reg += 8)
-		ctrl_outl( NO_PRIORITY, reg);
-
-
-	/* Set IRLM */
-	/* If all the priorities are set to 'no priority', then
-	 * assume we are using encoded mode.
-	 */
-	irlm = platform_int_priority[IRQ_IRL0] + platform_int_priority[IRQ_IRL1] + \
-		platform_int_priority[IRQ_IRL2] + platform_int_priority[IRQ_IRL3];
-
-	if (irlm == NO_PRIORITY) {
-		/* IRLM = 0 */
-		reg = INTC_ICR_CLEAR;
-		i = IRQ_INTA;
-		printk("Trying to use encoded IRL0-3. IRLs unsupported.\n");
-	} else {
-		/* IRLM = 1 */
-		reg = INTC_ICR_SET;
-		i = IRQ_IRL0;
-	}
-	ctrl_outl(INTC_ICR_IRLM, reg);
-
-	/* Set interrupt priorities according to platform description */
-	for (data = 0, reg = INTC_INTPRI_0; i < NR_INTC_IRQS; i++) {
-		data |= platform_int_priority[i] << ((i % INTC_INTPRI_PPREG) * 4);
-		if ((i % INTC_INTPRI_PPREG) == (INTC_INTPRI_PPREG - 1)) {
-			/* Upon the 7th, set Priority Register */
-			ctrl_outl(data, reg);
-			data = 0;
-			reg += 8;
-		}
-	}
-
-#ifdef CONFIG_SH_CAYMAN
-	{
-		extern void init_cayman_irq(void);
-
-		init_cayman_irq();
-	}
-#endif
-
-	/*
-	 * And now let interrupts come in.
-	 * sti() is not enough, we need to
-	 * lower priority, too.
-	 */
-        __asm__ __volatile__("getcon    " __SR ", %0\n\t"
-                             "and       %0, %1, %0\n\t"
-                             "putcon    %0, " __SR "\n\t"
-                             : "=&r" (__dummy0)
-                             : "r" (__dummy1));
-}
diff --git a/include/asm-sh/cpu-sh5/irq.h b/include/asm-sh/cpu-sh5/irq.h
index 5c9e6a873aeb..f539baec8529 100644
--- a/include/asm-sh/cpu-sh5/irq.h
+++ b/include/asm-sh/cpu-sh5/irq.h
@@ -92,9 +92,6 @@
 #define NR_EXT_IRQS	0
 #endif
 
-#define NR_IRQS		(NR_INTC_IRQS+NR_EXT_IRQS)
-
-
 /* Default IRQs, fixed */
 #define TIMER_IRQ	IRQ_TUNI0
 #define RTC_IRQ		IRQ_CUI
@@ -116,29 +113,6 @@
 
 extern int intc_evt_to_irq[(0xE20/0x20)+1];
 int intc_irq_describe(char* p, int irq);
-
-#define irq_canonicalize(irq)	(irq)
-
-#ifdef CONFIG_SH_CAYMAN
-int cayman_irq_demux(int evt);
-int cayman_irq_describe(char* p, int irq);
-#define irq_demux(x) cayman_irq_demux(x)
-#define irq_describe(p, x) cayman_irq_describe(p, x)
-#else
-#define irq_demux(x) (intc_evt_to_irq[x])
-#define irq_describe(p, x) intc_irq_describe(p, x)
-#endif
-
-/*
- * Function for "on chip support modules".
- */
-
-/*
- * SH-5 supports Priority based interrupts only.
- * Interrupt priorities are defined at platform level.
- */
-#define set_ipr_data(a, b, c, d)
-#define make_ipr_irq(a)
-#define make_imask_irq(a)
+extern int platform_int_priority[NR_INTC_IRQS];
 
 #endif /* __ASM_SH64_IRQ_H */
diff --git a/include/asm-sh/platform.h b/include/asm-sh/platform.h
deleted file mode 100644
index bd0d9c405a80..000000000000
--- a/include/asm-sh/platform.h
+++ /dev/null
@@ -1,64 +0,0 @@
-#ifndef __ASM_SH64_PLATFORM_H
-#define __ASM_SH64_PLATFORM_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/platform.h
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- *
- * benedict.gaster@superh.com:	 3rd May 2002
- *    Added support for ramdisk, removing statically linked romfs at the same time.
- */
-
-#include <linux/ioport.h>
-#include <asm/irq.h>
-
-
-/*
- * Platform definition structure.
- */
-struct sh64_platform {
-	unsigned int readonly_rootfs;
-	unsigned int ramdisk_flags;
-	unsigned int initial_root_dev;
-	unsigned int loader_type;
-	unsigned int initrd_start;
-	unsigned int initrd_size;
-	unsigned int fpu_flags;
-	unsigned int io_res_count;
-	unsigned int kram_res_count;
-	unsigned int xram_res_count;
-	unsigned int rom_res_count;
-	struct resource *io_res_p;
-	struct resource *kram_res_p;
-	struct resource *xram_res_p;
-	struct resource *rom_res_p;
-};
-
-extern struct sh64_platform platform_parms;
-
-extern unsigned long long memory_start, memory_end;
-
-extern unsigned long long fpu_in_use;
-
-extern int platform_int_priority[NR_INTC_IRQS];
-
-#define FPU_FLAGS		(platform_parms.fpu_flags)
-#define STANDARD_IO_RESOURCES	(platform_parms.io_res_count)
-#define STANDARD_KRAM_RESOURCES	(platform_parms.kram_res_count)
-#define STANDARD_XRAM_RESOURCES	(platform_parms.xram_res_count)
-#define STANDARD_ROM_RESOURCES	(platform_parms.rom_res_count)
-
-/*
- * Kernel Memory description, Respectively:
- * code = last but one memory descriptor
- * data = last memory descriptor
- */
-#define code_resource (platform_parms.kram_res_p[STANDARD_KRAM_RESOURCES - 2])
-#define data_resource (platform_parms.kram_res_p[STANDARD_KRAM_RESOURCES - 1])
-
-#endif	/* __ASM_SH64_PLATFORM_H */
-- 
cgit v1.2.3-59-g8ed1b


From b4eaa1cc7ce8203ac9af9184c49c635ce79592b1 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 21 Nov 2007 23:27:52 +0900
Subject: sh: Kill off the rest of arch/sh64/kernel/.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/drivers/pci/pci-sh5.c   | 536 ++++++++++++++++++++++++++++++++++++++++
 arch/sh/drivers/pci/pci-sh5.h   | 107 ++++++++
 arch/sh/kernel/Makefile_32      |   2 +-
 arch/sh/kernel/Makefile_64      |   2 +-
 arch/sh/kernel/time.c           | 269 --------------------
 arch/sh/kernel/time_32.c        | 269 ++++++++++++++++++++
 arch/sh/kernel/time_64.c        | 528 +++++++++++++++++++++++++++++++++++++++
 arch/sh64/kernel/Makefile       |  36 ---
 arch/sh64/kernel/alphanum.c     |  43 ----
 arch/sh64/kernel/dma.c          | 297 ----------------------
 arch/sh64/kernel/early_printk.c |  99 --------
 arch/sh64/kernel/led.c          |  40 ---
 arch/sh64/kernel/pci_sh5.c      | 536 ----------------------------------------
 arch/sh64/kernel/pci_sh5.h      | 107 --------
 arch/sh64/kernel/pcibios.c      | 168 -------------
 arch/sh64/kernel/setup.c        | 379 ----------------------------
 arch/sh64/kernel/time.c         | 531 ---------------------------------------
 17 files changed, 1442 insertions(+), 2507 deletions(-)
 create mode 100644 arch/sh/drivers/pci/pci-sh5.c
 create mode 100644 arch/sh/drivers/pci/pci-sh5.h
 delete mode 100644 arch/sh/kernel/time.c
 create mode 100644 arch/sh/kernel/time_32.c
 create mode 100644 arch/sh/kernel/time_64.c
 delete mode 100644 arch/sh64/kernel/Makefile
 delete mode 100644 arch/sh64/kernel/alphanum.c
 delete mode 100644 arch/sh64/kernel/dma.c
 delete mode 100644 arch/sh64/kernel/early_printk.c
 delete mode 100644 arch/sh64/kernel/led.c
 delete mode 100644 arch/sh64/kernel/pci_sh5.c
 delete mode 100644 arch/sh64/kernel/pci_sh5.h
 delete mode 100644 arch/sh64/kernel/pcibios.c
 delete mode 100644 arch/sh64/kernel/setup.c
 delete mode 100644 arch/sh64/kernel/time.c

(limited to 'arch')

diff --git a/arch/sh/drivers/pci/pci-sh5.c b/arch/sh/drivers/pci/pci-sh5.c
new file mode 100644
index 000000000000..b4d9534d2b0e
--- /dev/null
+++ b/arch/sh/drivers/pci/pci-sh5.c
@@ -0,0 +1,536 @@
+/*
+ * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
+ * Copyright (C) 2003, 2004 Paul Mundt
+ * Copyright (C) 2004 Richard Curnow
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ * Support functions for the SH5 PCI hardware.
+ */
+
+#include <linux/kernel.h>
+#include <linux/rwsem.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/types.h>
+#include <asm/pci.h>
+#include <linux/irq.h>
+
+#include <asm/io.h>
+#include <asm/hardware.h>
+#include "pci_sh5.h"
+
+static unsigned long pcicr_virt;
+unsigned long pciio_virt;
+
+static void __init pci_fixup_ide_bases(struct pci_dev *d)
+{
+	int i;
+
+	/*
+	 * PCI IDE controllers use non-standard I/O port decoding, respect it.
+	 */
+	if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE)
+		return;
+	printk("PCI: IDE base address fixup for %s\n", pci_name(d));
+	for(i=0; i<4; i++) {
+		struct resource *r = &d->resource[i];
+		if ((r->start & ~0x80) == 0x374) {
+			r->start |= 2;
+			r->end = r->start;
+		}
+	}
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases);
+
+char * __devinit pcibios_setup(char *str)
+{
+	return str;
+}
+
+/* Rounds a number UP to the nearest power of two. Used for
+ * sizing the PCI window.
+ */
+static u32 __init r2p2(u32 num)
+{
+	int i = 31;
+	u32 tmp = num;
+
+	if (num == 0)
+		return 0;
+
+	do {
+		if (tmp & (1 << 31))
+			break;
+		i--;
+		tmp <<= 1;
+	} while (i >= 0);
+
+	tmp = 1 << i;
+	/* If the original number isn't a power of 2, round it up */
+	if (tmp != num)
+		tmp <<= 1;
+
+	return tmp;
+}
+
+extern unsigned long long memory_start, memory_end;
+
+int __init sh5pci_init(unsigned memStart, unsigned memSize)
+{
+	u32 lsr0;
+	u32 uval;
+
+	pcicr_virt = onchip_remap(SH5PCI_ICR_BASE, 1024, "PCICR");
+	if (!pcicr_virt) {
+		panic("Unable to remap PCICR\n");
+	}
+
+	pciio_virt = onchip_remap(SH5PCI_IO_BASE, 0x10000, "PCIIO");
+	if (!pciio_virt) {
+		panic("Unable to remap PCIIO\n");
+	}
+
+	pr_debug("Register base addres is 0x%08lx\n", pcicr_virt);
+
+	/* Clear snoop registers */
+        SH5PCI_WRITE(CSCR0, 0);
+        SH5PCI_WRITE(CSCR1, 0);
+
+	pr_debug("Wrote to reg\n");
+
+        /* Switch off interrupts */
+        SH5PCI_WRITE(INTM,  0);
+        SH5PCI_WRITE(AINTM, 0);
+        SH5PCI_WRITE(PINTM, 0);
+
+        /* Set bus active, take it out of reset */
+        uval = SH5PCI_READ(CR);
+
+	/* Set command Register */
+        SH5PCI_WRITE(CR, uval | CR_LOCK_MASK | CR_CFINT| CR_FTO | CR_PFE | CR_PFCS | CR_BMAM);
+
+	uval=SH5PCI_READ(CR);
+        pr_debug("CR is actually 0x%08x\n",uval);
+
+        /* Allow it to be a master */
+	/* NB - WE DISABLE I/O ACCESS to stop overlap */
+        /* set WAIT bit to enable stepping, an attempt to improve stability */
+	SH5PCI_WRITE_SHORT(CSR_CMD,
+			    PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_WAIT);
+
+        /*
+        ** Set translation mapping memory in order to convert the address
+        ** used for the main bus, to the PCI internal address.
+        */
+        SH5PCI_WRITE(MBR,0x40000000);
+
+        /* Always set the max size 512M */
+        SH5PCI_WRITE(MBMR, PCISH5_MEM_SIZCONV(512*1024*1024));
+
+        /*
+        ** I/O addresses are mapped at internal PCI specific address
+        ** as is described into the configuration bridge table.
+        ** These are changed to 0, to allow cards that have legacy
+        ** io such as vga to function correctly. We set the SH5 IOBAR to
+        ** 256K, which is a bit big as we can only have 64K of address space
+        */
+
+        SH5PCI_WRITE(IOBR,0x0);
+
+	pr_debug("PCI:Writing 0x%08x to IOBR\n",0);
+
+        /* Set up a 256K window. Totally pointless waste  of address space */
+        SH5PCI_WRITE(IOBMR,0);
+	pr_debug("PCI:Writing 0x%08x to IOBMR\n",0);
+
+	/* The SH5 has a HUGE 256K I/O region, which breaks the PCI spec. Ideally,
+         * we would want to map the I/O region somewhere, but it is so big this is not
+         * that easy!
+         */
+	SH5PCI_WRITE(CSR_IBAR0,~0);
+	/* Set memory size value */
+        memSize = memory_end - memory_start;
+
+        /* Now we set up the mbars so the PCI bus can see the memory of the machine */
+        if (memSize < (1024 * 1024)) {
+                printk(KERN_ERR "PCISH5: Ridiculous memory size of 0x%x?\n", memSize);
+                return -EINVAL;
+        }
+
+        /* Set LSR 0 */
+        lsr0 = (memSize > (512 * 1024 * 1024)) ? 0x1ff00001 : ((r2p2(memSize) - 0x100000) | 0x1);
+        SH5PCI_WRITE(LSR0, lsr0);
+
+	pr_debug("PCI:Writing 0x%08x to LSR0\n",lsr0);
+
+        /* Set MBAR 0 */
+        SH5PCI_WRITE(CSR_MBAR0, memory_start);
+        SH5PCI_WRITE(LAR0, memory_start);
+
+        SH5PCI_WRITE(CSR_MBAR1,0);
+        SH5PCI_WRITE(LAR1,0);
+        SH5PCI_WRITE(LSR1,0);
+
+	pr_debug("PCI:Writing 0x%08llx to CSR_MBAR0\n",memory_start);
+	pr_debug("PCI:Writing 0x%08llx to LAR0\n",memory_start);
+
+        /* Enable the PCI interrupts on the device */
+        SH5PCI_WRITE(INTM,  ~0);
+        SH5PCI_WRITE(AINTM, ~0);
+        SH5PCI_WRITE(PINTM, ~0);
+
+	pr_debug("Switching on all error interrupts\n");
+
+        return(0);
+}
+
+static int sh5pci_read(struct pci_bus *bus, unsigned int devfn, int where,
+			int size, u32 *val)
+{
+	SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
+
+	switch (size) {
+		case 1:
+			*val = (u8)SH5PCI_READ_BYTE(PDR + (where & 3));
+			break;
+		case 2:
+			*val = (u16)SH5PCI_READ_SHORT(PDR + (where & 2));
+			break;
+		case 4:
+			*val = SH5PCI_READ(PDR);
+			break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int sh5pci_write(struct pci_bus *bus, unsigned int devfn, int where,
+			 int size, u32 val)
+{
+	SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
+
+	switch (size) {
+		case 1:
+			SH5PCI_WRITE_BYTE(PDR + (where & 3), (u8)val);
+			break;
+		case 2:
+			SH5PCI_WRITE_SHORT(PDR + (where & 2), (u16)val);
+			break;
+		case 4:
+			SH5PCI_WRITE(PDR, val);
+			break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops pci_config_ops = {
+	.read =		sh5pci_read,
+	.write =	sh5pci_write,
+};
+
+/* Everything hangs off this */
+static struct pci_bus *pci_root_bus;
+
+
+static u8 __init no_swizzle(struct pci_dev *dev, u8 * pin)
+{
+	pr_debug("swizzle for dev %d on bus %d slot %d pin is %d\n",
+	         dev->devfn,dev->bus->number, PCI_SLOT(dev->devfn),*pin);
+	return PCI_SLOT(dev->devfn);
+}
+
+static inline u8 bridge_swizzle(u8 pin, u8 slot)
+{
+	return (((pin-1) + slot) % 4) + 1;
+}
+
+u8 __init common_swizzle(struct pci_dev *dev, u8 *pinp)
+{
+	if (dev->bus->number != 0) {
+		u8 pin = *pinp;
+		do {
+			pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
+			/* Move up the chain of bridges. */
+			dev = dev->bus->self;
+		} while (dev->bus->self);
+		*pinp = pin;
+
+		/* The slot is the slot of the last bridge. */
+	}
+
+	return PCI_SLOT(dev->devfn);
+}
+
+/* This needs to be shunted out of here into the board specific bit */
+
+static int __init map_cayman_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	int result = -1;
+
+	/* The complication here is that the PCI IRQ lines from the Cayman's 2
+	   5V slots get into the CPU via a different path from the IRQ lines
+	   from the 3 3.3V slots.  Thus, we have to detect whether the card's
+	   interrupts go via the 5V or 3.3V path, i.e. the 'bridge swizzling'
+	   at the point where we cross from 5V to 3.3V is not the normal case.
+
+	   The added complication is that we don't know that the 5V slots are
+	   always bus 2, because a card containing a PCI-PCI bridge may be
+	   plugged into a 3.3V slot, and this changes the bus numbering.
+
+	   Also, the Cayman has an intermediate PCI bus that goes a custom
+	   expansion board header (and to the secondary bridge).  This bus has
+	   never been used in practice.
+
+	   The 1ary onboard PCI-PCI bridge is device 3 on bus 0
+	   The 2ary onboard PCI-PCI bridge is device 0 on the 2ary bus of the 1ary bridge.
+	   */
+
+	struct slot_pin {
+		int slot;
+		int pin;
+	} path[4];
+	int i=0;
+
+	while (dev->bus->number > 0) {
+
+		slot = path[i].slot = PCI_SLOT(dev->devfn);
+		pin = path[i].pin = bridge_swizzle(pin, slot);
+		dev = dev->bus->self;
+		i++;
+		if (i > 3) panic("PCI path to root bus too long!\n");
+	}
+
+	slot = PCI_SLOT(dev->devfn);
+	/* This is the slot on bus 0 through which the device is eventually
+	   reachable. */
+
+	/* Now work back up. */
+	if ((slot < 3) || (i == 0)) {
+		/* Bus 0 (incl. PCI-PCI bridge itself) : perform the final
+		   swizzle now. */
+		result = IRQ_INTA + bridge_swizzle(pin, slot) - 1;
+	} else {
+		i--;
+		slot = path[i].slot;
+		pin  = path[i].pin;
+		if (slot > 0) {
+			panic("PCI expansion bus device found - not handled!\n");
+		} else {
+			if (i > 0) {
+				/* 5V slots */
+				i--;
+				slot = path[i].slot;
+				pin  = path[i].pin;
+				/* 'pin' was swizzled earlier wrt slot, don't do it again. */
+				result = IRQ_P2INTA + (pin - 1);
+			} else {
+				/* IRQ for 2ary PCI-PCI bridge : unused */
+				result = -1;
+			}
+		}
+	}
+
+	return result;
+}
+
+static irqreturn_t pcish5_err_irq(int irq, void *dev_id)
+{
+	struct pt_regs *regs = get_irq_regs();
+	unsigned pci_int, pci_air, pci_cir, pci_aint;
+
+	pci_int = SH5PCI_READ(INT);
+	pci_cir = SH5PCI_READ(CIR);
+	pci_air = SH5PCI_READ(AIR);
+
+	if (pci_int) {
+		printk("PCI INTERRUPT (at %08llx)!\n", regs->pc);
+		printk("PCI INT -> 0x%x\n", pci_int & 0xffff);
+		printk("PCI AIR -> 0x%x\n", pci_air);
+		printk("PCI CIR -> 0x%x\n", pci_cir);
+		SH5PCI_WRITE(INT, ~0);
+	}
+
+	pci_aint = SH5PCI_READ(AINT);
+	if (pci_aint) {
+		printk("PCI ARB INTERRUPT!\n");
+		printk("PCI AINT -> 0x%x\n", pci_aint);
+		printk("PCI AIR -> 0x%x\n", pci_air);
+		printk("PCI CIR -> 0x%x\n", pci_cir);
+		SH5PCI_WRITE(AINT, ~0);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t pcish5_serr_irq(int irq, void *dev_id)
+{
+	printk("SERR IRQ\n");
+
+	return IRQ_NONE;
+}
+
+static void __init
+pcibios_size_bridge(struct pci_bus *bus, struct resource *ior,
+		    struct resource *memr)
+{
+	struct resource io_res, mem_res;
+	struct pci_dev *dev;
+	struct pci_dev *bridge = bus->self;
+	struct list_head *ln;
+
+	if (!bridge)
+		return;	/* host bridge, nothing to do */
+
+	/* set reasonable default locations for pcibios_align_resource */
+	io_res.start = PCIBIOS_MIN_IO;
+	mem_res.start = PCIBIOS_MIN_MEM;
+
+	io_res.end = io_res.start;
+	mem_res.end = mem_res.start;
+
+	/* Collect information about how our direct children are layed out. */
+	for (ln=bus->devices.next; ln != &bus->devices; ln=ln->next) {
+		int i;
+		dev = pci_dev_b(ln);
+
+		/* Skip bridges for now */
+		if (dev->class >> 8 == PCI_CLASS_BRIDGE_PCI)
+			continue;
+
+		for (i = 0; i < PCI_NUM_RESOURCES; i++) {
+			struct resource res;
+			unsigned long size;
+
+			memcpy(&res, &dev->resource[i], sizeof(res));
+			size = res.end - res.start + 1;
+
+			if (res.flags & IORESOURCE_IO) {
+				res.start = io_res.end;
+				pcibios_align_resource(dev, &res, size, 0);
+				io_res.end = res.start + size;
+			} else if (res.flags & IORESOURCE_MEM) {
+				res.start = mem_res.end;
+				pcibios_align_resource(dev, &res, size, 0);
+				mem_res.end = res.start + size;
+			}
+		}
+	}
+
+	/* And for all of the subordinate busses. */
+	for (ln=bus->children.next; ln != &bus->children; ln=ln->next)
+		pcibios_size_bridge(pci_bus_b(ln), &io_res, &mem_res);
+
+	/* turn the ending locations into sizes (subtract start) */
+	io_res.end -= io_res.start;
+	mem_res.end -= mem_res.start;
+
+	/* Align the sizes up by bridge rules */
+	io_res.end = ALIGN(io_res.end, 4*1024) - 1;
+	mem_res.end = ALIGN(mem_res.end, 1*1024*1024) - 1;
+
+	/* Adjust the bridge's allocation requirements */
+	bridge->resource[0].end = bridge->resource[0].start + io_res.end;
+	bridge->resource[1].end = bridge->resource[1].start + mem_res.end;
+
+	bridge->resource[PCI_BRIDGE_RESOURCES].end =
+	    bridge->resource[PCI_BRIDGE_RESOURCES].start + io_res.end;
+	bridge->resource[PCI_BRIDGE_RESOURCES+1].end =
+	    bridge->resource[PCI_BRIDGE_RESOURCES+1].start + mem_res.end;
+
+	/* adjust parent's resource requirements */
+	if (ior) {
+		ior->end = ALIGN(ior->end, 4*1024);
+		ior->end += io_res.end;
+	}
+
+	if (memr) {
+		memr->end = ALIGN(memr->end, 1*1024*1024);
+		memr->end += mem_res.end;
+	}
+}
+
+static void __init pcibios_size_bridges(void)
+{
+	struct resource io_res, mem_res;
+
+	memset(&io_res, 0, sizeof(io_res));
+	memset(&mem_res, 0, sizeof(mem_res));
+
+	pcibios_size_bridge(pci_root_bus, &io_res, &mem_res);
+}
+
+static int __init pcibios_init(void)
+{
+        if (request_irq(IRQ_ERR, pcish5_err_irq,
+                        IRQF_DISABLED, "PCI Error",NULL) < 0) {
+                printk(KERN_ERR "PCISH5: Cannot hook PCI_PERR interrupt\n");
+                return -EINVAL;
+        }
+
+        if (request_irq(IRQ_SERR, pcish5_serr_irq,
+                        IRQF_DISABLED, "PCI SERR interrupt", NULL) < 0) {
+                printk(KERN_ERR "PCISH5: Cannot hook PCI_SERR interrupt\n");
+                return -EINVAL;
+        }
+
+	/* The pci subsystem needs to know where memory is and how much
+	 * of it there is. I've simply made these globals. A better mechanism
+	 * is probably needed.
+	 */
+	sh5pci_init(__pa(memory_start),
+		     __pa(memory_end) - __pa(memory_start));
+
+	pci_root_bus = pci_scan_bus(0, &pci_config_ops, NULL);
+	pcibios_size_bridges();
+	pci_assign_unassigned_resources();
+	pci_fixup_irqs(no_swizzle, map_cayman_irq);
+
+	return 0;
+}
+
+subsys_initcall(pcibios_init);
+
+void __devinit pcibios_fixup_bus(struct pci_bus *bus)
+{
+	struct pci_dev *dev = bus->self;
+	int i;
+
+#if 1
+	if(dev) {
+		for(i=0; i<3; i++) {
+			bus->resource[i] =
+				&dev->resource[PCI_BRIDGE_RESOURCES+i];
+			bus->resource[i]->name = bus->name;
+		}
+		bus->resource[0]->flags |= IORESOURCE_IO;
+		bus->resource[1]->flags |= IORESOURCE_MEM;
+
+		/* For now, propagate host limits to the bus;
+		 * we'll adjust them later. */
+
+#if 1
+		bus->resource[0]->end = 64*1024 - 1 ;
+		bus->resource[1]->end = PCIBIOS_MIN_MEM+(256*1024*1024)-1;
+		bus->resource[0]->start = PCIBIOS_MIN_IO;
+		bus->resource[1]->start = PCIBIOS_MIN_MEM;
+#else
+		bus->resource[0]->end = 0;
+		bus->resource[1]->end = 0;
+		bus->resource[0]->start =0;
+		bus->resource[1]->start = 0;
+#endif
+		/* Turn off downstream PF memory address range by default */
+		bus->resource[2]->start = 1024*1024;
+		bus->resource[2]->end = bus->resource[2]->start - 1;
+	}
+#endif
+
+}
+
diff --git a/arch/sh/drivers/pci/pci-sh5.h b/arch/sh/drivers/pci/pci-sh5.h
new file mode 100644
index 000000000000..c71159dd04b9
--- /dev/null
+++ b/arch/sh/drivers/pci/pci-sh5.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ * Definitions for the SH5 PCI hardware.
+ */
+
+/* Product ID */
+#define PCISH5_PID		0x350d
+
+/* vendor ID */
+#define PCISH5_VID		0x1054
+
+/* Configuration types */
+#define ST_TYPE0                0x00    /* Configuration cycle type 0 */
+#define ST_TYPE1                0x01    /* Configuration cycle type 1 */
+
+/* VCR data */
+#define PCISH5_VCR_STATUS      0x00
+#define PCISH5_VCR_VERSION     0x08
+
+/*
+** ICR register offsets and bits
+*/
+#define PCISH5_ICR_CR          0x100   /* PCI control register values */
+#define CR_PBAM                 (1<<12)
+#define CR_PFCS                 (1<<11)
+#define CR_FTO                  (1<<10)
+#define CR_PFE                  (1<<9)
+#define CR_TBS                  (1<<8)
+#define CR_SPUE                 (1<<7)
+#define CR_BMAM                 (1<<6)
+#define CR_HOST                 (1<<5)
+#define CR_CLKEN                (1<<4)
+#define CR_SOCS                 (1<<3)
+#define CR_IOCS                 (1<<2)
+#define CR_RSTCTL               (1<<1)
+#define CR_CFINT                (1<<0)
+#define CR_LOCK_MASK            0xa5000000
+
+#define PCISH5_ICR_INT         0x114   /* Interrupt registert values     */
+#define INT_MADIM               (1<<2)
+
+#define PCISH5_ICR_LSR0        0X104   /* Local space register values    */
+#define PCISH5_ICR_LSR1        0X108   /* Local space register values    */
+#define PCISH5_ICR_LAR0        0x10c   /* Local address register values  */
+#define PCISH5_ICR_LAR1        0x110   /* Local address register values  */
+#define PCISH5_ICR_INTM        0x118   /* Interrupt mask register values                         */
+#define PCISH5_ICR_AIR         0x11c   /* Interrupt error address information register values    */
+#define PCISH5_ICR_CIR         0x120   /* Interrupt error command information register values    */
+#define PCISH5_ICR_AINT        0x130   /* Interrupt error arbiter interrupt register values      */
+#define PCISH5_ICR_AINTM       0x134   /* Interrupt error arbiter interrupt mask register values */
+#define PCISH5_ICR_BMIR        0x138   /* Interrupt error info register of bus master values     */
+#define PCISH5_ICR_PAR         0x1c0   /* Pio address register values                            */
+#define PCISH5_ICR_MBR         0x1c4   /* Memory space bank register values                      */
+#define PCISH5_ICR_IOBR        0x1c8   /* I/O space bank register values                         */
+#define PCISH5_ICR_PINT        0x1cc   /* power management interrupt register values             */
+#define PCISH5_ICR_PINTM       0x1d0   /* power management interrupt mask register values        */
+#define PCISH5_ICR_MBMR        0x1d8   /* memory space bank mask register values                 */
+#define PCISH5_ICR_IOBMR       0x1dc   /* I/O space bank mask register values                    */
+#define PCISH5_ICR_CSCR0       0x210   /* PCI cache snoop control register 0                     */
+#define PCISH5_ICR_CSCR1       0x214   /* PCI cache snoop control register 1                     */
+#define PCISH5_ICR_PDR         0x220   /* Pio data register values                               */
+
+/* These are configs space registers */
+#define PCISH5_ICR_CSR_VID     0x000	/* Vendor id                           */
+#define PCISH5_ICR_CSR_DID     0x002   /* Device id                           */
+#define PCISH5_ICR_CSR_CMD     0x004   /* Command register                    */
+#define PCISH5_ICR_CSR_STATUS  0x006   /* Stautus                             */
+#define PCISH5_ICR_CSR_IBAR0   0x010   /* I/O base address register           */
+#define PCISH5_ICR_CSR_MBAR0   0x014   /* First  Memory base address register */
+#define PCISH5_ICR_CSR_MBAR1   0x018   /* Second Memory base address register */
+
+
+
+/* Base address of registers */
+#define SH5PCI_ICR_BASE (PHYS_PCI_BLOCK + 0x00040000)
+#define SH5PCI_IO_BASE  (PHYS_PCI_BLOCK + 0x00800000)
+/* #define SH5PCI_VCR_BASE (P2SEG_PCICB_BLOCK + P2SEG)    */
+
+/* Register selection macro */
+#define PCISH5_ICR_REG(x)                ( pcicr_virt + (PCISH5_ICR_##x))
+/* #define PCISH5_VCR_REG(x)                ( SH5PCI_VCR_BASE (PCISH5_VCR_##x)) */
+
+/* Write I/O functions */
+#define SH5PCI_WRITE(reg,val)        ctrl_outl((u32)(val),PCISH5_ICR_REG(reg))
+#define SH5PCI_WRITE_SHORT(reg,val)  ctrl_outw((u16)(val),PCISH5_ICR_REG(reg))
+#define SH5PCI_WRITE_BYTE(reg,val)   ctrl_outb((u8)(val),PCISH5_ICR_REG(reg))
+
+/* Read I/O functions */
+#define SH5PCI_READ(reg)             ctrl_inl(PCISH5_ICR_REG(reg))
+#define SH5PCI_READ_SHORT(reg)       ctrl_inw(PCISH5_ICR_REG(reg))
+#define SH5PCI_READ_BYTE(reg)        ctrl_inb(PCISH5_ICR_REG(reg))
+
+/* Set PCI config bits */
+#define SET_CONFIG_BITS(bus,devfn,where)  ((((bus) << 16) | ((devfn) << 8) | ((where) & ~3)) | 0x80000000)
+
+/* Set PCI command register */
+#define CONFIG_CMD(bus, devfn, where)            SET_CONFIG_BITS(bus->number,devfn,where)
+
+/* Size converters */
+#define PCISH5_MEM_SIZCONV(x)		  (((x / 0x40000) - 1) << 18)
+#define PCISH5_IO_SIZCONV(x)		  (((x / 0x40000) - 1) << 18)
+
+
diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index 990ba74db0d6..c89289831053 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/arch/sh/kernel/Makefile_32
@@ -6,7 +6,7 @@ extra-y	:= head_32.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_32.o \
 	   ptrace_32.o semaphore.o setup.o signal_32.o sys_sh.o sys_sh32.o \
-	   syscalls_32.o time.o topology.o traps.o traps_32.o
+	   syscalls_32.o time_32.o topology.o traps.o traps_32.o
 
 obj-y				+= cpu/ timers/
 obj-$(CONFIG_VSYSCALL)		+= vsyscall/
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index 10e3ae1c64b8..1ef21cc087f3 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/arch/sh/kernel/Makefile_64
@@ -2,7 +2,7 @@ extra-y	:= head_64.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
 	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh.o sys_sh64.o \
-	   syscalls_64.o time.o topology.o traps.o traps_64.o
+	   syscalls_64.o time_64.o topology.o traps.o traps_64.o
 
 obj-y				+= cpu/ timers/
 obj-$(CONFIG_VSYSCALL)		+= vsyscall/
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
deleted file mode 100644
index 2bc04bfee738..000000000000
--- a/arch/sh/kernel/time.c
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- *  arch/sh/kernel/time.c
- *
- *  Copyright (C) 1999  Tetsuya Okada & Niibe Yutaka
- *  Copyright (C) 2000  Philipp Rumpf <prumpf@tux.org>
- *  Copyright (C) 2002 - 2007  Paul Mundt
- *  Copyright (C) 2002  M. R. Brown  <mrbrown@linux-sh.org>
- *
- *  Some code taken from i386 version.
- *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/profile.h>
-#include <linux/timex.h>
-#include <linux/sched.h>
-#include <linux/clockchips.h>
-#include <asm/clock.h>
-#include <asm/rtc.h>
-#include <asm/timer.h>
-#include <asm/kgdb.h>
-
-struct sys_timer *sys_timer;
-
-/* Move this somewhere more sensible.. */
-DEFINE_SPINLOCK(rtc_lock);
-EXPORT_SYMBOL(rtc_lock);
-
-/* Dummy RTC ops */
-static void null_rtc_get_time(struct timespec *tv)
-{
-	tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0);
-	tv->tv_nsec = 0;
-}
-
-static int null_rtc_set_time(const time_t secs)
-{
-	return 0;
-}
-
-/*
- * Null high precision timer functions for systems lacking one.
- */
-static cycle_t null_hpt_read(void)
-{
-	return 0;
-}
-
-void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time;
-int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time;
-
-#ifndef CONFIG_GENERIC_TIME
-void do_gettimeofday(struct timeval *tv)
-{
-	unsigned long flags;
-	unsigned long seq;
-	unsigned long usec, sec;
-
-	do {
-		/*
-		 * Turn off IRQs when grabbing xtime_lock, so that
-		 * the sys_timer get_offset code doesn't have to handle it.
-		 */
-		seq = read_seqbegin_irqsave(&xtime_lock, flags);
-		usec = get_timer_offset();
-		sec = xtime.tv_sec;
-		usec += xtime.tv_nsec / NSEC_PER_USEC;
-	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
-	while (usec >= 1000000) {
-		usec -= 1000000;
-		sec++;
-	}
-
-	tv->tv_sec = sec;
-	tv->tv_usec = usec;
-}
-EXPORT_SYMBOL(do_gettimeofday);
-
-int do_settimeofday(struct timespec *tv)
-{
-	time_t wtm_sec, sec = tv->tv_sec;
-	long wtm_nsec, nsec = tv->tv_nsec;
-
-	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
-		return -EINVAL;
-
-	write_seqlock_irq(&xtime_lock);
-	/*
-	 * This is revolting. We need to set "xtime" correctly. However, the
-	 * value in this location is the value at the most recent update of
-	 * wall time.  Discover what correction gettimeofday() would have
-	 * made, and then undo it!
-	 */
-	nsec -= get_timer_offset() * NSEC_PER_USEC;
-
-	wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
-	wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
-
-	set_normalized_timespec(&xtime, sec, nsec);
-	set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
-
-	ntp_clear();
-	write_sequnlock_irq(&xtime_lock);
-	clock_was_set();
-
-	return 0;
-}
-EXPORT_SYMBOL(do_settimeofday);
-#endif /* !CONFIG_GENERIC_TIME */
-
-#ifndef CONFIG_GENERIC_CLOCKEVENTS
-/* last time the RTC clock got updated */
-static long last_rtc_update;
-
-/*
- * handle_timer_tick() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
- */
-void handle_timer_tick(void)
-{
-	do_timer(1);
-#ifndef CONFIG_SMP
-	update_process_times(user_mode(get_irq_regs()));
-#endif
-	if (current->pid)
-		profile_tick(CPU_PROFILING);
-
-#ifdef CONFIG_HEARTBEAT
-	if (sh_mv.mv_heartbeat != NULL)
-		sh_mv.mv_heartbeat();
-#endif
-
-	/*
-	 * If we have an externally synchronized Linux clock, then update
-	 * RTC clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
-	 * called as close as possible to 500 ms before the new second starts.
-	 */
-	if (ntp_synced() &&
-	    xtime.tv_sec > last_rtc_update + 660 &&
-	    (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
-	    (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
-		if (rtc_sh_set_time(xtime.tv_sec) == 0)
-			last_rtc_update = xtime.tv_sec;
-		else
-			/* do it again in 60s */
-			last_rtc_update = xtime.tv_sec - 600;
-	}
-}
-#endif /* !CONFIG_GENERIC_CLOCKEVENTS */
-
-#ifdef CONFIG_PM
-int timer_suspend(struct sys_device *dev, pm_message_t state)
-{
-	struct sys_timer *sys_timer = container_of(dev, struct sys_timer, dev);
-
-	sys_timer->ops->stop();
-
-	return 0;
-}
-
-int timer_resume(struct sys_device *dev)
-{
-	struct sys_timer *sys_timer = container_of(dev, struct sys_timer, dev);
-
-	sys_timer->ops->start();
-
-	return 0;
-}
-#else
-#define timer_suspend NULL
-#define timer_resume NULL
-#endif
-
-static struct sysdev_class timer_sysclass = {
-	.name	 = "timer",
-	.suspend = timer_suspend,
-	.resume	 = timer_resume,
-};
-
-static int __init timer_init_sysfs(void)
-{
-	int ret = sysdev_class_register(&timer_sysclass);
-	if (ret != 0)
-		return ret;
-
-	sys_timer->dev.cls = &timer_sysclass;
-	return sysdev_register(&sys_timer->dev);
-}
-device_initcall(timer_init_sysfs);
-
-void (*board_time_init)(void);
-
-/*
- * Shamelessly based on the MIPS and Sparc64 work.
- */
-static unsigned long timer_ticks_per_nsec_quotient __read_mostly;
-unsigned long sh_hpt_frequency = 0;
-
-#define NSEC_PER_CYC_SHIFT	10
-
-struct clocksource clocksource_sh = {
-	.name		= "SuperH",
-	.rating		= 200,
-	.mask		= CLOCKSOURCE_MASK(32),
-	.read		= null_hpt_read,
-	.shift		= 16,
-	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-static void __init init_sh_clocksource(void)
-{
-	if (!sh_hpt_frequency || clocksource_sh.read == null_hpt_read)
-		return;
-
-	clocksource_sh.mult = clocksource_hz2mult(sh_hpt_frequency,
-						  clocksource_sh.shift);
-
-	timer_ticks_per_nsec_quotient =
-		clocksource_hz2mult(sh_hpt_frequency, NSEC_PER_CYC_SHIFT);
-
-	clocksource_register(&clocksource_sh);
-}
-
-#ifdef CONFIG_GENERIC_TIME
-unsigned long long sched_clock(void)
-{
-	unsigned long long ticks = clocksource_sh.read();
-	return (ticks * timer_ticks_per_nsec_quotient) >> NSEC_PER_CYC_SHIFT;
-}
-#endif
-
-void __init time_init(void)
-{
-	if (board_time_init)
-		board_time_init();
-
-	clk_init();
-
-	rtc_sh_get_time(&xtime);
-	set_normalized_timespec(&wall_to_monotonic,
-				-xtime.tv_sec, -xtime.tv_nsec);
-
-	/*
-	 * Find the timer to use as the system timer, it will be
-	 * initialized for us.
-	 */
-	sys_timer = get_sys_timer();
-	printk(KERN_INFO "Using %s for system timer\n", sys_timer->name);
-
-	if (sys_timer->ops->read)
-		clocksource_sh.read = sys_timer->ops->read;
-
-	init_sh_clocksource();
-
-	if (sh_hpt_frequency)
-		printk("Using %lu.%03lu MHz high precision timer.\n",
-		       ((sh_hpt_frequency + 500) / 1000) / 1000,
-		       ((sh_hpt_frequency + 500) / 1000) % 1000);
-
-#if defined(CONFIG_SH_KGDB)
-	/*
-	 * Set up kgdb as requested. We do it here because the serial
-	 * init uses the timer vars we just set up for figuring baud.
-	 */
-	kgdb_init();
-#endif
-}
diff --git a/arch/sh/kernel/time_32.c b/arch/sh/kernel/time_32.c
new file mode 100644
index 000000000000..2bc04bfee738
--- /dev/null
+++ b/arch/sh/kernel/time_32.c
@@ -0,0 +1,269 @@
+/*
+ *  arch/sh/kernel/time.c
+ *
+ *  Copyright (C) 1999  Tetsuya Okada & Niibe Yutaka
+ *  Copyright (C) 2000  Philipp Rumpf <prumpf@tux.org>
+ *  Copyright (C) 2002 - 2007  Paul Mundt
+ *  Copyright (C) 2002  M. R. Brown  <mrbrown@linux-sh.org>
+ *
+ *  Some code taken from i386 version.
+ *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/profile.h>
+#include <linux/timex.h>
+#include <linux/sched.h>
+#include <linux/clockchips.h>
+#include <asm/clock.h>
+#include <asm/rtc.h>
+#include <asm/timer.h>
+#include <asm/kgdb.h>
+
+struct sys_timer *sys_timer;
+
+/* Move this somewhere more sensible.. */
+DEFINE_SPINLOCK(rtc_lock);
+EXPORT_SYMBOL(rtc_lock);
+
+/* Dummy RTC ops */
+static void null_rtc_get_time(struct timespec *tv)
+{
+	tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0);
+	tv->tv_nsec = 0;
+}
+
+static int null_rtc_set_time(const time_t secs)
+{
+	return 0;
+}
+
+/*
+ * Null high precision timer functions for systems lacking one.
+ */
+static cycle_t null_hpt_read(void)
+{
+	return 0;
+}
+
+void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time;
+int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time;
+
+#ifndef CONFIG_GENERIC_TIME
+void do_gettimeofday(struct timeval *tv)
+{
+	unsigned long flags;
+	unsigned long seq;
+	unsigned long usec, sec;
+
+	do {
+		/*
+		 * Turn off IRQs when grabbing xtime_lock, so that
+		 * the sys_timer get_offset code doesn't have to handle it.
+		 */
+		seq = read_seqbegin_irqsave(&xtime_lock, flags);
+		usec = get_timer_offset();
+		sec = xtime.tv_sec;
+		usec += xtime.tv_nsec / NSEC_PER_USEC;
+	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
+
+	while (usec >= 1000000) {
+		usec -= 1000000;
+		sec++;
+	}
+
+	tv->tv_sec = sec;
+	tv->tv_usec = usec;
+}
+EXPORT_SYMBOL(do_gettimeofday);
+
+int do_settimeofday(struct timespec *tv)
+{
+	time_t wtm_sec, sec = tv->tv_sec;
+	long wtm_nsec, nsec = tv->tv_nsec;
+
+	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
+		return -EINVAL;
+
+	write_seqlock_irq(&xtime_lock);
+	/*
+	 * This is revolting. We need to set "xtime" correctly. However, the
+	 * value in this location is the value at the most recent update of
+	 * wall time.  Discover what correction gettimeofday() would have
+	 * made, and then undo it!
+	 */
+	nsec -= get_timer_offset() * NSEC_PER_USEC;
+
+	wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
+	wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
+
+	set_normalized_timespec(&xtime, sec, nsec);
+	set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
+
+	ntp_clear();
+	write_sequnlock_irq(&xtime_lock);
+	clock_was_set();
+
+	return 0;
+}
+EXPORT_SYMBOL(do_settimeofday);
+#endif /* !CONFIG_GENERIC_TIME */
+
+#ifndef CONFIG_GENERIC_CLOCKEVENTS
+/* last time the RTC clock got updated */
+static long last_rtc_update;
+
+/*
+ * handle_timer_tick() needs to keep up the real-time clock,
+ * as well as call the "do_timer()" routine every clocktick
+ */
+void handle_timer_tick(void)
+{
+	do_timer(1);
+#ifndef CONFIG_SMP
+	update_process_times(user_mode(get_irq_regs()));
+#endif
+	if (current->pid)
+		profile_tick(CPU_PROFILING);
+
+#ifdef CONFIG_HEARTBEAT
+	if (sh_mv.mv_heartbeat != NULL)
+		sh_mv.mv_heartbeat();
+#endif
+
+	/*
+	 * If we have an externally synchronized Linux clock, then update
+	 * RTC clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
+	 * called as close as possible to 500 ms before the new second starts.
+	 */
+	if (ntp_synced() &&
+	    xtime.tv_sec > last_rtc_update + 660 &&
+	    (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
+	    (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
+		if (rtc_sh_set_time(xtime.tv_sec) == 0)
+			last_rtc_update = xtime.tv_sec;
+		else
+			/* do it again in 60s */
+			last_rtc_update = xtime.tv_sec - 600;
+	}
+}
+#endif /* !CONFIG_GENERIC_CLOCKEVENTS */
+
+#ifdef CONFIG_PM
+int timer_suspend(struct sys_device *dev, pm_message_t state)
+{
+	struct sys_timer *sys_timer = container_of(dev, struct sys_timer, dev);
+
+	sys_timer->ops->stop();
+
+	return 0;
+}
+
+int timer_resume(struct sys_device *dev)
+{
+	struct sys_timer *sys_timer = container_of(dev, struct sys_timer, dev);
+
+	sys_timer->ops->start();
+
+	return 0;
+}
+#else
+#define timer_suspend NULL
+#define timer_resume NULL
+#endif
+
+static struct sysdev_class timer_sysclass = {
+	.name	 = "timer",
+	.suspend = timer_suspend,
+	.resume	 = timer_resume,
+};
+
+static int __init timer_init_sysfs(void)
+{
+	int ret = sysdev_class_register(&timer_sysclass);
+	if (ret != 0)
+		return ret;
+
+	sys_timer->dev.cls = &timer_sysclass;
+	return sysdev_register(&sys_timer->dev);
+}
+device_initcall(timer_init_sysfs);
+
+void (*board_time_init)(void);
+
+/*
+ * Shamelessly based on the MIPS and Sparc64 work.
+ */
+static unsigned long timer_ticks_per_nsec_quotient __read_mostly;
+unsigned long sh_hpt_frequency = 0;
+
+#define NSEC_PER_CYC_SHIFT	10
+
+struct clocksource clocksource_sh = {
+	.name		= "SuperH",
+	.rating		= 200,
+	.mask		= CLOCKSOURCE_MASK(32),
+	.read		= null_hpt_read,
+	.shift		= 16,
+	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static void __init init_sh_clocksource(void)
+{
+	if (!sh_hpt_frequency || clocksource_sh.read == null_hpt_read)
+		return;
+
+	clocksource_sh.mult = clocksource_hz2mult(sh_hpt_frequency,
+						  clocksource_sh.shift);
+
+	timer_ticks_per_nsec_quotient =
+		clocksource_hz2mult(sh_hpt_frequency, NSEC_PER_CYC_SHIFT);
+
+	clocksource_register(&clocksource_sh);
+}
+
+#ifdef CONFIG_GENERIC_TIME
+unsigned long long sched_clock(void)
+{
+	unsigned long long ticks = clocksource_sh.read();
+	return (ticks * timer_ticks_per_nsec_quotient) >> NSEC_PER_CYC_SHIFT;
+}
+#endif
+
+void __init time_init(void)
+{
+	if (board_time_init)
+		board_time_init();
+
+	clk_init();
+
+	rtc_sh_get_time(&xtime);
+	set_normalized_timespec(&wall_to_monotonic,
+				-xtime.tv_sec, -xtime.tv_nsec);
+
+	/*
+	 * Find the timer to use as the system timer, it will be
+	 * initialized for us.
+	 */
+	sys_timer = get_sys_timer();
+	printk(KERN_INFO "Using %s for system timer\n", sys_timer->name);
+
+	if (sys_timer->ops->read)
+		clocksource_sh.read = sys_timer->ops->read;
+
+	init_sh_clocksource();
+
+	if (sh_hpt_frequency)
+		printk("Using %lu.%03lu MHz high precision timer.\n",
+		       ((sh_hpt_frequency + 500) / 1000) / 1000,
+		       ((sh_hpt_frequency + 500) / 1000) % 1000);
+
+#if defined(CONFIG_SH_KGDB)
+	/*
+	 * Set up kgdb as requested. We do it here because the serial
+	 * init uses the timer vars we just set up for figuring baud.
+	 */
+	kgdb_init();
+#endif
+}
diff --git a/arch/sh/kernel/time_64.c b/arch/sh/kernel/time_64.c
new file mode 100644
index 000000000000..4c52feead115
--- /dev/null
+++ b/arch/sh/kernel/time_64.c
@@ -0,0 +1,528 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/kernel/time.c
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003 - 2007  Paul Mundt
+ * Copyright (C) 2003  Richard Curnow
+ *
+ *    Original TMU/RTC code taken from sh version.
+ *    Copyright (C) 1999  Tetsuya Okada & Niibe Yutaka
+ *      Some code taken from i386 version.
+ *      Copyright (C) 1991, 1992, 1995  Linus Torvalds
+ */
+#include <linux/errno.h>
+#include <linux/rwsem.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/time.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/profile.h>
+#include <linux/smp.h>
+#include <linux/module.h>
+#include <linux/bcd.h>
+#include <linux/timex.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <asm/cpu/registers.h>	 /* required by inline __asm__ stmt. */
+#include <asm/cpu/irq.h>
+#include <asm/addrspace.h>
+#include <asm/processor.h>
+#include <asm/uaccess.h>
+#include <asm/delay.h>
+
+#define TMU_TOCR_INIT	0x00
+#define TMU0_TCR_INIT	0x0020
+#define TMU_TSTR_INIT	1
+#define TMU_TSTR_OFF	0
+
+/* Real Time Clock */
+#define	RTC_BLOCK_OFF	0x01040000
+#define RTC_BASE	PHYS_PERIPHERAL_BLOCK + RTC_BLOCK_OFF
+#define RTC_RCR1_CIE	0x10	/* Carry Interrupt Enable */
+#define RTC_RCR1	(rtc_base + 0x38)
+
+/* Clock, Power and Reset Controller */
+#define	CPRC_BLOCK_OFF	0x01010000
+#define CPRC_BASE	PHYS_PERIPHERAL_BLOCK + CPRC_BLOCK_OFF
+
+#define FRQCR		(cprc_base+0x0)
+#define WTCSR		(cprc_base+0x0018)
+#define STBCR		(cprc_base+0x0030)
+
+/* Time Management Unit */
+#define	TMU_BLOCK_OFF	0x01020000
+#define TMU_BASE	PHYS_PERIPHERAL_BLOCK + TMU_BLOCK_OFF
+#define TMU0_BASE	tmu_base + 0x8 + (0xc * 0x0)
+#define TMU1_BASE	tmu_base + 0x8 + (0xc * 0x1)
+#define TMU2_BASE	tmu_base + 0x8 + (0xc * 0x2)
+
+#define TMU_TOCR	tmu_base+0x0	/* Byte access */
+#define TMU_TSTR	tmu_base+0x4	/* Byte access */
+
+#define TMU0_TCOR	TMU0_BASE+0x0	/* Long access */
+#define TMU0_TCNT	TMU0_BASE+0x4	/* Long access */
+#define TMU0_TCR	TMU0_BASE+0x8	/* Word access */
+
+#define TICK_SIZE (tick_nsec / 1000)
+
+static unsigned long tmu_base, rtc_base;
+unsigned long cprc_base;
+
+/* Variables to allow interpolation of time of day to resolution better than a
+ * jiffy. */
+
+/* This is effectively protected by xtime_lock */
+static unsigned long ctc_last_interrupt;
+static unsigned long long usecs_per_jiffy = 1000000/HZ; /* Approximation */
+
+#define CTC_JIFFY_SCALE_SHIFT 40
+
+/* 2**CTC_JIFFY_SCALE_SHIFT / ctc_ticks_per_jiffy */
+static unsigned long long scaled_recip_ctc_ticks_per_jiffy;
+
+/* Estimate number of microseconds that have elapsed since the last timer tick,
+   by scaling the delta that has occurred in the CTC register.
+
+   WARNING WARNING WARNING : This algorithm relies on the CTC decrementing at
+   the CPU clock rate.  If the CPU sleeps, the CTC stops counting.  Bear this
+   in mind if enabling SLEEP_WORKS in process.c.  In that case, this algorithm
+   probably needs to use TMU.TCNT0 instead.  This will work even if the CPU is
+   sleeping, though will be coarser.
+
+   FIXME : What if usecs_per_tick is moving around too much, e.g. if an adjtime
+   is running or if the freq or tick arguments of adjtimex are modified after
+   we have calibrated the scaling factor?  This will result in either a jump at
+   the end of a tick period, or a wrap backwards at the start of the next one,
+   if the application is reading the time of day often enough.  I think we
+   ought to do better than this.  For this reason, usecs_per_jiffy is left
+   separated out in the calculation below.  This allows some future hook into
+   the adjtime-related stuff in kernel/timer.c to remove this hazard.
+
+*/
+
+static unsigned long usecs_since_tick(void)
+{
+	unsigned long long current_ctc;
+	long ctc_ticks_since_interrupt;
+	unsigned long long ull_ctc_ticks_since_interrupt;
+	unsigned long result;
+
+	unsigned long long mul1_out;
+	unsigned long long mul1_out_high;
+	unsigned long long mul2_out_low, mul2_out_high;
+
+	/* Read CTC register */
+	asm ("getcon cr62, %0" : "=r" (current_ctc));
+	/* Note, the CTC counts down on each CPU clock, not up.
+	   Note(2), use long type to get correct wraparound arithmetic when
+	   the counter crosses zero. */
+	ctc_ticks_since_interrupt = (long) ctc_last_interrupt - (long) current_ctc;
+	ull_ctc_ticks_since_interrupt = (unsigned long long) ctc_ticks_since_interrupt;
+
+	/* Inline assembly to do 32x32x32->64 multiplier */
+	asm volatile ("mulu.l %1, %2, %0" :
+	     "=r" (mul1_out) :
+	     "r" (ull_ctc_ticks_since_interrupt), "r" (usecs_per_jiffy));
+
+	mul1_out_high = mul1_out >> 32;
+
+	asm volatile ("mulu.l %1, %2, %0" :
+	     "=r" (mul2_out_low) :
+	     "r" (mul1_out), "r" (scaled_recip_ctc_ticks_per_jiffy));
+
+#if 1
+	asm volatile ("mulu.l %1, %2, %0" :
+	     "=r" (mul2_out_high) :
+	     "r" (mul1_out_high), "r" (scaled_recip_ctc_ticks_per_jiffy));
+#endif
+
+	result = (unsigned long) (((mul2_out_high << 32) + mul2_out_low) >> CTC_JIFFY_SCALE_SHIFT);
+
+	return result;
+}
+
+void do_gettimeofday(struct timeval *tv)
+{
+	unsigned long flags;
+	unsigned long seq;
+	unsigned long usec, sec;
+
+	do {
+		seq = read_seqbegin_irqsave(&xtime_lock, flags);
+		usec = usecs_since_tick();
+		sec = xtime.tv_sec;
+		usec += xtime.tv_nsec / 1000;
+	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
+
+	while (usec >= 1000000) {
+		usec -= 1000000;
+		sec++;
+	}
+
+	tv->tv_sec = sec;
+	tv->tv_usec = usec;
+}
+
+int do_settimeofday(struct timespec *tv)
+{
+	time_t wtm_sec, sec = tv->tv_sec;
+	long wtm_nsec, nsec = tv->tv_nsec;
+
+	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
+		return -EINVAL;
+
+	write_seqlock_irq(&xtime_lock);
+	/*
+	 * This is revolting. We need to set "xtime" correctly. However, the
+	 * value in this location is the value at the most recent update of
+	 * wall time.  Discover what correction gettimeofday() would have
+	 * made, and then undo it!
+	 */
+	nsec -= 1000 * usecs_since_tick();
+
+	wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
+	wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
+
+	set_normalized_timespec(&xtime, sec, nsec);
+	set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
+
+	ntp_clear();
+	write_sequnlock_irq(&xtime_lock);
+	clock_was_set();
+
+	return 0;
+}
+EXPORT_SYMBOL(do_settimeofday);
+
+/* Dummy RTC ops */
+static void null_rtc_get_time(struct timespec *tv)
+{
+	tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0);
+	tv->tv_nsec = 0;
+}
+
+static int null_rtc_set_time(const time_t secs)
+{
+	return 0;
+}
+
+void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time;
+int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time;
+
+/* last time the RTC clock got updated */
+static long last_rtc_update;
+
+/*
+ * timer_interrupt() needs to keep up the real-time clock,
+ * as well as call the "do_timer()" routine every clocktick
+ */
+static inline void do_timer_interrupt(void)
+{
+	unsigned long long current_ctc;
+	asm ("getcon cr62, %0" : "=r" (current_ctc));
+	ctc_last_interrupt = (unsigned long) current_ctc;
+
+	do_timer(1);
+#ifndef CONFIG_SMP
+	update_process_times(user_mode(get_irq_regs()));
+#endif
+	if (current->pid)
+		profile_tick(CPU_PROFILING);
+
+#ifdef CONFIG_HEARTBEAT
+	if (sh_mv.mv_heartbeat != NULL)
+		sh_mv.mv_heartbeat();
+#endif
+
+	/*
+	 * If we have an externally synchronized Linux clock, then update
+	 * RTC clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
+	 * called as close as possible to 500 ms before the new second starts.
+	 */
+	if (ntp_synced() &&
+	    xtime.tv_sec > last_rtc_update + 660 &&
+	    (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
+	    (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
+		if (rtc_sh_set_time(xtime.tv_sec) == 0)
+			last_rtc_update = xtime.tv_sec;
+		else
+			/* do it again in 60 s */
+			last_rtc_update = xtime.tv_sec - 600;
+	}
+}
+
+/*
+ * This is the same as the above, except we _also_ save the current
+ * Time Stamp Counter value at the time of the timer interrupt, so that
+ * we later on can estimate the time of day more exactly.
+ */
+static irqreturn_t timer_interrupt(int irq, void *dev_id)
+{
+	unsigned long timer_status;
+
+	/* Clear UNF bit */
+	timer_status = ctrl_inw(TMU0_TCR);
+	timer_status &= ~0x100;
+	ctrl_outw(timer_status, TMU0_TCR);
+
+	/*
+	 * Here we are in the timer irq handler. We just have irqs locally
+	 * disabled but we don't know if the timer_bh is running on the other
+	 * CPU. We need to avoid to SMP race with it. NOTE: we don' t need
+	 * the irq version of write_lock because as just said we have irq
+	 * locally disabled. -arca
+	 */
+	write_lock(&xtime_lock);
+	do_timer_interrupt();
+	write_unlock(&xtime_lock);
+
+	return IRQ_HANDLED;
+}
+
+
+static __init unsigned int get_cpu_hz(void)
+{
+	unsigned int count;
+	unsigned long __dummy;
+	unsigned long ctc_val_init, ctc_val;
+
+	/*
+	** Regardless the toolchain, force the compiler to use the
+	** arbitrary register r3 as a clock tick counter.
+	** NOTE: r3 must be in accordance with sh64_rtc_interrupt()
+	*/
+	register unsigned long long  __rtc_irq_flag __asm__ ("r3");
+
+	local_irq_enable();
+	do {} while (ctrl_inb(rtc_base) != 0);
+	ctrl_outb(RTC_RCR1_CIE, RTC_RCR1); /* Enable carry interrupt */
+
+	/*
+	 * r3 is arbitrary. CDC does not support "=z".
+	 */
+	ctc_val_init = 0xffffffff;
+	ctc_val = ctc_val_init;
+
+	asm volatile("gettr	tr0, %1\n\t"
+		     "putcon	%0, " __CTC "\n\t"
+		     "and	%2, r63, %2\n\t"
+		     "pta	$+4, tr0\n\t"
+		     "beq/l	%2, r63, tr0\n\t"
+		     "ptabs	%1, tr0\n\t"
+		     "getcon	" __CTC ", %0\n\t"
+		: "=r"(ctc_val), "=r" (__dummy), "=r" (__rtc_irq_flag)
+		: "0" (0));
+	local_irq_disable();
+	/*
+	 * SH-3:
+	 * CPU clock = 4 stages * loop
+	 * tst    rm,rm      if id ex
+	 * bt/s   1b            if id ex
+	 * add    #1,rd            if id ex
+         *                            (if) pipe line stole
+	 * tst    rm,rm                  if id ex
+         * ....
+	 *
+	 *
+	 * SH-4:
+	 * CPU clock = 6 stages * loop
+	 * I don't know why.
+         * ....
+	 *
+	 * SH-5:
+	 * Use CTC register to count.  This approach returns the right value
+	 * even if the I-cache is disabled (e.g. whilst debugging.)
+	 *
+	 */
+
+	count = ctc_val_init - ctc_val; /* CTC counts down */
+
+#if defined (CONFIG_SH_SIMULATOR)
+	/*
+	 * Let's pretend we are a 5MHz SH-5 to avoid a too
+	 * little timer interval. Also to keep delay
+	 * calibration within a reasonable time.
+	 */
+	return 5000000;
+#else
+	/*
+	 * This really is count by the number of clock cycles
+         * by the ratio between a complete R64CNT
+         * wrap-around (128) and CUI interrupt being raised (64).
+	 */
+	return count*2;
+#endif
+}
+
+static irqreturn_t sh64_rtc_interrupt(int irq, void *dev_id)
+{
+	struct pt_regs *regs = get_irq_regs();
+
+	ctrl_outb(0, RTC_RCR1);	/* Disable Carry Interrupts */
+	regs->regs[3] = 1;	/* Using r3 */
+
+	return IRQ_HANDLED;
+}
+
+static struct irqaction irq0  = {
+	.handler = timer_interrupt,
+	.flags = IRQF_DISABLED,
+	.mask = CPU_MASK_NONE,
+	.name = "timer",
+};
+static struct irqaction irq1  = {
+	.handler = sh64_rtc_interrupt,
+	.flags = IRQF_DISABLED,
+	.mask = CPU_MASK_NONE,
+	.name = "rtc",
+};
+
+void __init time_init(void)
+{
+	unsigned int cpu_clock, master_clock, bus_clock, module_clock;
+	unsigned long interval;
+	unsigned long frqcr, ifc, pfc;
+	static int ifc_table[] = { 2, 4, 6, 8, 10, 12, 16, 24 };
+#define bfc_table ifc_table	/* Same */
+#define pfc_table ifc_table	/* Same */
+
+	tmu_base = onchip_remap(TMU_BASE, 1024, "TMU");
+	if (!tmu_base) {
+		panic("Unable to remap TMU\n");
+	}
+
+	rtc_base = onchip_remap(RTC_BASE, 1024, "RTC");
+	if (!rtc_base) {
+		panic("Unable to remap RTC\n");
+	}
+
+	cprc_base = onchip_remap(CPRC_BASE, 1024, "CPRC");
+	if (!cprc_base) {
+		panic("Unable to remap CPRC\n");
+	}
+
+	rtc_sh_get_time(&xtime);
+
+	setup_irq(TIMER_IRQ, &irq0);
+	setup_irq(RTC_IRQ, &irq1);
+
+	/* Check how fast it is.. */
+	cpu_clock = get_cpu_hz();
+
+	/* Note careful order of operations to maintain reasonable precision and avoid overflow. */
+	scaled_recip_ctc_ticks_per_jiffy = ((1ULL << CTC_JIFFY_SCALE_SHIFT) / (unsigned long long)(cpu_clock / HZ));
+
+	free_irq(RTC_IRQ, NULL);
+
+	printk("CPU clock: %d.%02dMHz\n",
+	       (cpu_clock / 1000000), (cpu_clock % 1000000)/10000);
+	{
+		unsigned short bfc;
+		frqcr = ctrl_inl(FRQCR);
+		ifc  = ifc_table[(frqcr>> 6) & 0x0007];
+		bfc  = bfc_table[(frqcr>> 3) & 0x0007];
+		pfc  = pfc_table[(frqcr>> 12) & 0x0007];
+		master_clock = cpu_clock * ifc;
+		bus_clock = master_clock/bfc;
+	}
+
+	printk("Bus clock: %d.%02dMHz\n",
+	       (bus_clock/1000000), (bus_clock % 1000000)/10000);
+	module_clock = master_clock/pfc;
+	printk("Module clock: %d.%02dMHz\n",
+	       (module_clock/1000000), (module_clock % 1000000)/10000);
+	interval = (module_clock/(HZ*4));
+
+	printk("Interval = %ld\n", interval);
+
+	current_cpu_data.cpu_clock    = cpu_clock;
+	current_cpu_data.master_clock = master_clock;
+	current_cpu_data.bus_clock    = bus_clock;
+	current_cpu_data.module_clock = module_clock;
+
+	/* Start TMU0 */
+	ctrl_outb(TMU_TSTR_OFF, TMU_TSTR);
+	ctrl_outb(TMU_TOCR_INIT, TMU_TOCR);
+	ctrl_outw(TMU0_TCR_INIT, TMU0_TCR);
+	ctrl_outl(interval, TMU0_TCOR);
+	ctrl_outl(interval, TMU0_TCNT);
+	ctrl_outb(TMU_TSTR_INIT, TMU_TSTR);
+}
+
+void enter_deep_standby(void)
+{
+	/* Disable watchdog timer */
+	ctrl_outl(0xa5000000, WTCSR);
+	/* Configure deep standby on sleep */
+	ctrl_outl(0x03, STBCR);
+
+#ifdef CONFIG_SH_ALPHANUMERIC
+	{
+		extern void mach_alphanum(int position, unsigned char value);
+		extern void mach_alphanum_brightness(int setting);
+		char halted[] = "Halted. ";
+		int i;
+		mach_alphanum_brightness(6); /* dimmest setting above off */
+		for (i=0; i<8; i++) {
+			mach_alphanum(i, halted[i]);
+		}
+		asm __volatile__ ("synco");
+	}
+#endif
+
+	asm __volatile__ ("sleep");
+	asm __volatile__ ("synci");
+	asm __volatile__ ("nop");
+	asm __volatile__ ("nop");
+	asm __volatile__ ("nop");
+	asm __volatile__ ("nop");
+	panic("Unexpected wakeup!\n");
+}
+
+static struct resource rtc_resources[] = {
+	[0] = {
+		/* RTC base, filled in by rtc_init */
+		.flags	= IORESOURCE_IO,
+	},
+	[1] = {
+		/* Period IRQ */
+		.start	= IRQ_PRI,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* Carry IRQ */
+		.start	= IRQ_CUI,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		/* Alarm IRQ */
+		.start	= IRQ_ATI,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device rtc_device = {
+	.name		= "sh-rtc",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(rtc_resources),
+	.resource	= rtc_resources,
+};
+
+static int __init rtc_init(void)
+{
+	rtc_resources[0].start	= rtc_base;
+	rtc_resources[0].end	= rtc_resources[0].start + 0x58 - 1;
+
+	return platform_device_register(&rtc_device);
+}
+device_initcall(rtc_init);
diff --git a/arch/sh64/kernel/Makefile b/arch/sh64/kernel/Makefile
deleted file mode 100644
index e3467bda6167..000000000000
--- a/arch/sh64/kernel/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2000, 2001  Paolo Alberelli
-# Copyright (C) 2003  Paul Mundt
-#
-# Makefile for the Linux sh64 kernel.
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-extra-y	:= head.o init_task.o vmlinux.lds
-
-obj-y	:= process.o signal.o entry.o traps.o irq.o irq_intc.o \
-	   ptrace.o setup.o time.o sys_sh64.o semaphore.o sh_ksyms.o \
-	   switchto.o syscalls.o
-
-obj-$(CONFIG_HEARTBEAT)		+= led.o
-obj-$(CONFIG_SH_ALPHANUMERIC)	+= alphanum.o
-obj-$(CONFIG_SH_DMA)		+= dma.o
-obj-$(CONFIG_SH_FPU)		+= fpu.o
-obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
-obj-$(CONFIG_KALLSYMS)		+= unwind.o
-obj-$(CONFIG_PCI)		+= pcibios.o
-obj-$(CONFIG_MODULES)		+= module.o
-
-ifeq ($(CONFIG_PCI),y)
-obj-$(CONFIG_CPU_SH5)		+= pci_sh5.o
-endif
-
-USE_STANDARD_AS_RULE := true
-
diff --git a/arch/sh64/kernel/alphanum.c b/arch/sh64/kernel/alphanum.c
deleted file mode 100644
index d1619d95fbaa..000000000000
--- a/arch/sh64/kernel/alphanum.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * arch/sh64/kernel/alphanum.c
- *
- * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.
- *
- * Machine-independent functions for handling 8-digit alphanumeric display
- * (e.g. Agilent HDSP-253x)
- */
-#include <linux/stddef.h>
-#include <linux/sched.h>
-
-void mach_alphanum(int pos, unsigned char val);
-
-void print_seg(char *file, int line)
-{
-	int i;
-	unsigned int nibble;
-
-	for (i = 0; i < 5; i++) {
-		mach_alphanum(i, file[i]);
-	}
-
-	for (i = 0; i < 3; i++) {
-		nibble = ((line >> (i * 4)) & 0xf);
-		mach_alphanum(7 - i, nibble + ((nibble > 9) ? 55 : 48));
-	}
-}
-
-void print_seg_num(unsigned num)
-{
-	int i;
-	unsigned int nibble;
-
-	for (i = 0; i < 8; i++) {
-		nibble = ((num >> (i * 4)) & 0xf);
-
-		mach_alphanum(7 - i, nibble + ((nibble > 9) ? 55 : 48));
-	}
-}
-
diff --git a/arch/sh64/kernel/dma.c b/arch/sh64/kernel/dma.c
deleted file mode 100644
index 32c6f0549bf1..000000000000
--- a/arch/sh64/kernel/dma.c
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- * arch/sh64/kernel/dma.c
- *
- * DMA routines for the SH-5 DMAC.
- *
- * Copyright (C) 2003  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/types.h>
-#include <linux/irq.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-#include <asm/hardware.h>
-#include <asm/dma.h>
-#include <asm/signal.h>
-#include <asm/errno.h>
-#include <asm/io.h>
-
-typedef struct {
-	unsigned long dev_addr;
-	unsigned long mem_addr;
-
-	unsigned int mode;
-	unsigned int count;
-} dma_info_t;
-
-static dma_info_t dma_info[MAX_DMA_CHANNELS];
-static DEFINE_SPINLOCK(dma_spin_lock);
-
-/* arch/sh64/kernel/irq_intc.c */
-extern void make_intc_irq(unsigned int irq);
-
-/* DMAC Interrupts */
-#define DMA_IRQ_DMTE0	18
-#define DMA_IRQ_DERR	22
-
-#define DMAC_COMMON_BASE	(dmac_base + 0x08)
-#define DMAC_SAR_BASE		(dmac_base + 0x10)
-#define DMAC_DAR_BASE		(dmac_base + 0x18)
-#define DMAC_COUNT_BASE		(dmac_base + 0x20)
-#define DMAC_CTRL_BASE		(dmac_base + 0x28)
-#define DMAC_STATUS_BASE	(dmac_base + 0x30)
-
-#define DMAC_SAR(n)	(DMAC_SAR_BASE    + ((n) * 0x28))
-#define DMAC_DAR(n)	(DMAC_DAR_BASE    + ((n) * 0x28))
-#define DMAC_COUNT(n)	(DMAC_COUNT_BASE  + ((n) * 0x28))
-#define DMAC_CTRL(n)	(DMAC_CTRL_BASE   + ((n) * 0x28))
-#define DMAC_STATUS(n)	(DMAC_STATUS_BASE + ((n) * 0x28))
-
-/* DMAC.COMMON Bit Definitions */
-#define DMAC_COMMON_PR	0x00000001	/* Priority */
-					/* Bits 1-2 Reserved */
-#define DMAC_COMMON_ME	0x00000008	/* Master Enable */
-#define DMAC_COMMON_NMI	0x00000010	/* NMI Flag */
-					/* Bits 5-6 Reserved */
-#define DMAC_COMMON_ER	0x00000780	/* Error Response */
-#define DMAC_COMMON_AAE	0x00007800	/* Address Alignment Error */
-					/* Bits 15-63 Reserved */
-
-/* DMAC.SAR Bit Definitions */
-#define DMAC_SAR_ADDR	0xffffffff	/* Source Address */
-
-/* DMAC.DAR Bit Definitions */
-#define DMAC_DAR_ADDR	0xffffffff	/* Destination Address */
-
-/* DMAC.COUNT Bit Definitions */
-#define DMAC_COUNT_CNT	0xffffffff	/* Transfer Count */
-
-/* DMAC.CTRL Bit Definitions */
-#define DMAC_CTRL_TS	0x00000007	/* Transfer Size */
-#define DMAC_CTRL_SI	0x00000018	/* Source Increment */
-#define DMAC_CTRL_DI	0x00000060	/* Destination Increment */
-#define DMAC_CTRL_RS	0x00000780	/* Resource Select */
-#define DMAC_CTRL_IE	0x00000800	/* Interrupt Enable */
-#define DMAC_CTRL_TE	0x00001000	/* Transfer Enable */
-					/* Bits 15-63 Reserved */
-
-/* DMAC.STATUS Bit Definitions */
-#define DMAC_STATUS_TE	0x00000001	/* Transfer End */
-#define DMAC_STATUS_AAE	0x00000002	/* Address Alignment Error */
-					/* Bits 2-63 Reserved */
-
-static unsigned long dmac_base;
-
-void set_dma_count(unsigned int chan, unsigned int count);
-void set_dma_addr(unsigned int chan, unsigned int addr);
-
-static irqreturn_t dma_mte(int irq, void *dev_id, struct pt_regs *regs)
-{
-	unsigned int chan = irq - DMA_IRQ_DMTE0;
-	dma_info_t *info = dma_info + chan;
-	u64 status;
-
-	if (info->mode & DMA_MODE_WRITE) {
-		sh64_out64(info->mem_addr & DMAC_SAR_ADDR, DMAC_SAR(chan));
-	} else {
-		sh64_out64(info->mem_addr & DMAC_DAR_ADDR, DMAC_DAR(chan));
-	}
-
-	set_dma_count(chan, info->count);
-
-	/* Clear the TE bit */
-	status = sh64_in64(DMAC_STATUS(chan));
-	status &= ~DMAC_STATUS_TE;
-	sh64_out64(status, DMAC_STATUS(chan));
-
-	return IRQ_HANDLED;
-}
-
-static struct irqaction irq_dmte = {
-	.handler	= dma_mte,
-	.flags		= IRQF_DISABLED,
-	.name		= "DMA MTE",
-};
-
-static irqreturn_t dma_err(int irq, void *dev_id, struct pt_regs *regs)
-{
-	u64 tmp;
-	u8 chan;
-
-	printk(KERN_NOTICE "DMAC: Got a DMA Error!\n");
-
-	tmp = sh64_in64(DMAC_COMMON_BASE);
-
-	/* Check for the type of error */
-	if ((chan = tmp & DMAC_COMMON_AAE)) {
-		/* It's an address alignment error.. */
-		printk(KERN_NOTICE "DMAC: Alignment error on channel %d, ", chan);
-
-		printk(KERN_NOTICE "SAR: 0x%08llx, DAR: 0x%08llx, COUNT: %lld\n",
-		       (sh64_in64(DMAC_SAR(chan)) & DMAC_SAR_ADDR),
-		       (sh64_in64(DMAC_DAR(chan)) & DMAC_DAR_ADDR),
-		       (sh64_in64(DMAC_COUNT(chan)) & DMAC_COUNT_CNT));
-
-	} else if ((chan = tmp & DMAC_COMMON_ER)) {
-		/* Something else went wrong.. */
-		printk(KERN_NOTICE "DMAC: Error on channel %d\n", chan);
-	}
-
-	/* Reset the ME bit to clear the interrupt */
-	tmp |= DMAC_COMMON_ME;
-	sh64_out64(tmp, DMAC_COMMON_BASE);
-
-	return IRQ_HANDLED;
-}
-
-static struct irqaction irq_derr = {
-	.handler	= dma_err,
-	.flags		= IRQF_DISABLED,
-	.name		= "DMA Error",
-};
-
-static inline unsigned long calc_xmit_shift(unsigned int chan)
-{
-	return sh64_in64(DMAC_CTRL(chan)) & 0x03;
-}
-
-void setup_dma(unsigned int chan, dma_info_t *info)
-{
-	unsigned int irq = DMA_IRQ_DMTE0 + chan;
-	dma_info_t *dma = dma_info + chan;
-
-	make_intc_irq(irq);
-	setup_irq(irq, &irq_dmte);
-	dma = info;
-}
-
-void enable_dma(unsigned int chan)
-{
-	u64 ctrl;
-
-	ctrl = sh64_in64(DMAC_CTRL(chan));
-	ctrl |= DMAC_CTRL_TE;
-	sh64_out64(ctrl, DMAC_CTRL(chan));
-}
-
-void disable_dma(unsigned int chan)
-{
-	u64 ctrl;
-
-	ctrl = sh64_in64(DMAC_CTRL(chan));
-	ctrl &= ~DMAC_CTRL_TE;
-	sh64_out64(ctrl, DMAC_CTRL(chan));
-}
-
-void set_dma_mode(unsigned int chan, char mode)
-{
-	dma_info_t *info = dma_info + chan;
-
-	info->mode = mode;
-
-	set_dma_addr(chan, info->mem_addr);
-	set_dma_count(chan, info->count);
-}
-
-void set_dma_addr(unsigned int chan, unsigned int addr)
-{
-	dma_info_t *info = dma_info + chan;
-	unsigned long sar, dar;
-
-	info->mem_addr = addr;
-	sar = (info->mode & DMA_MODE_WRITE) ? info->mem_addr : info->dev_addr;
-	dar = (info->mode & DMA_MODE_WRITE) ? info->dev_addr : info->mem_addr;
-
-	sh64_out64(sar & DMAC_SAR_ADDR, DMAC_SAR(chan));
-	sh64_out64(dar & DMAC_SAR_ADDR, DMAC_DAR(chan));
-}
-
-void set_dma_count(unsigned int chan, unsigned int count)
-{
-	dma_info_t *info = dma_info + chan;
-	u64 tmp;
-
-	info->count = count;
-
-	tmp = (info->count >> calc_xmit_shift(chan)) & DMAC_COUNT_CNT;
-
-	sh64_out64(tmp, DMAC_COUNT(chan));
-}
-
-unsigned long claim_dma_lock(void)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&dma_spin_lock, flags);
-
-	return flags;
-}
-
-void release_dma_lock(unsigned long flags)
-{
-	spin_unlock_irqrestore(&dma_spin_lock, flags);
-}
-
-int get_dma_residue(unsigned int chan)
-{
-	return sh64_in64(DMAC_COUNT(chan) << calc_xmit_shift(chan));
-}
-
-int __init init_dma(void)
-{
-	struct vcr_info vcr;
-	u64 tmp;
-
-	/* Remap the DMAC */
-	dmac_base = onchip_remap(PHYS_DMAC_BLOCK, 1024, "DMAC");
-	if (!dmac_base) {
-		printk(KERN_ERR "Unable to remap DMAC\n");
-		return -ENOMEM;
-	}
-
-	/* Report DMAC.VCR Info */
-	vcr = sh64_get_vcr_info(dmac_base);
-	printk("DMAC: Module ID: 0x%04x, Module version: 0x%04x\n",
-	       vcr.mod_id, vcr.mod_vers);
-
-	/* Set the ME bit */
-	tmp = sh64_in64(DMAC_COMMON_BASE);
-	tmp |= DMAC_COMMON_ME;
-	sh64_out64(tmp, DMAC_COMMON_BASE);
-
-	/* Enable the DMAC Error Interrupt */
-	make_intc_irq(DMA_IRQ_DERR);
-	setup_irq(DMA_IRQ_DERR, &irq_derr);
-
-	return 0;
-}
-
-static void __exit exit_dma(void)
-{
-	onchip_unmap(dmac_base);
-	free_irq(DMA_IRQ_DERR, 0);
-}
-
-module_init(init_dma);
-module_exit(exit_dma);
-
-MODULE_AUTHOR("Paul Mundt");
-MODULE_DESCRIPTION("DMA API for SH-5 DMAC");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(setup_dma);
-EXPORT_SYMBOL(claim_dma_lock);
-EXPORT_SYMBOL(release_dma_lock);
-EXPORT_SYMBOL(enable_dma);
-EXPORT_SYMBOL(disable_dma);
-EXPORT_SYMBOL(set_dma_mode);
-EXPORT_SYMBOL(set_dma_addr);
-EXPORT_SYMBOL(set_dma_count);
-EXPORT_SYMBOL(get_dma_residue);
-
diff --git a/arch/sh64/kernel/early_printk.c b/arch/sh64/kernel/early_printk.c
deleted file mode 100644
index 4f9131123672..000000000000
--- a/arch/sh64/kernel/early_printk.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * arch/sh64/kernel/early_printk.c
- *
- * SH-5 Early SCIF console (cloned and hacked from sh implementation)
- *
- * Copyright (C) 2003, 2004  Paul Mundt <lethal@linux-sh.org>
- * Copyright (C) 2002  M. R. Brown <mrbrown@0xd6.org>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/console.h>
-#include <linux/tty.h>
-#include <linux/init.h>
-#include <asm/io.h>
-#include <asm/hardware.h>
-
-#define SCIF_BASE_ADDR	0x01030000
-#define SCIF_ADDR_SH5	PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR
-
-/*
- * Fixed virtual address where SCIF is mapped (should already be done
- * in arch/sh64/kernel/head.S!).
- */
-#define SCIF_REG	0xfa030000
-
-enum {
-	SCIF_SCSMR2	= SCIF_REG + 0x00,
-	SCIF_SCBRR2	= SCIF_REG + 0x04,
-	SCIF_SCSCR2	= SCIF_REG + 0x08,
-	SCIF_SCFTDR2	= SCIF_REG + 0x0c,
-	SCIF_SCFSR2	= SCIF_REG + 0x10,
-	SCIF_SCFRDR2	= SCIF_REG + 0x14,
-	SCIF_SCFCR2	= SCIF_REG + 0x18,
-	SCIF_SCFDR2	= SCIF_REG + 0x1c,
-	SCIF_SCSPTR2	= SCIF_REG + 0x20,
-	SCIF_SCLSR2	= SCIF_REG + 0x24,
-};
-
-static void sh_console_putc(int c)
-{
-	while (!(ctrl_inw(SCIF_SCFSR2) & 0x20))
-		cpu_relax();
-
-	ctrl_outb(c, SCIF_SCFTDR2);
-	ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0x9f), SCIF_SCFSR2);
-
-	if (c == '\n')
-		sh_console_putc('\r');
-}
-
-static void sh_console_flush(void)
-{
-	ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0xbf), SCIF_SCFSR2);
-
-	while (!(ctrl_inw(SCIF_SCFSR2) & 0x40))
-		cpu_relax();
-
-	ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0xbf), SCIF_SCFSR2);
-}
-
-static void sh_console_write(struct console *con, const char *s, unsigned count)
-{
-	while (count-- > 0)
-		sh_console_putc(*s++);
-
-	sh_console_flush();
-}
-
-static int __init sh_console_setup(struct console *con, char *options)
-{
-	con->cflag = CREAD | HUPCL | CLOCAL | B19200 | CS8;
-
-	return 0;
-}
-
-static struct console sh_console = {
-	.name		= "scifcon",
-	.write		= sh_console_write,
-	.setup		= sh_console_setup,
-	.flags		= CON_PRINTBUFFER | CON_BOOT,
-	.index		= -1,
-};
-
-void __init enable_early_printk(void)
-{
-	ctrl_outb(0x2a, SCIF_SCBRR2);	/* 19200bps */
-
-	ctrl_outw(0x04, SCIF_SCFCR2);	/* Reset TFRST */
-	ctrl_outw(0x10, SCIF_SCFCR2);	/* TTRG0=1 */
-
-	ctrl_outw(0, SCIF_SCSPTR2);
-	ctrl_outw(0x60, SCIF_SCFSR2);
-	ctrl_outw(0, SCIF_SCLSR2);
-	ctrl_outw(0x30, SCIF_SCSCR2);
-
-	register_console(&sh_console);
-}
diff --git a/arch/sh64/kernel/led.c b/arch/sh64/kernel/led.c
deleted file mode 100644
index e35d3f667fb4..000000000000
--- a/arch/sh64/kernel/led.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * arch/sh64/kernel/led.c
- *
- * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.
- *
- * Flash the LEDs
- */
-#include <linux/stddef.h>
-#include <linux/sched.h>
-
-void mach_led(int pos, int val);
-
-/* acts like an actual heart beat -- ie thump-thump-pause... */
-void heartbeat(void)
-{
-	static unsigned int cnt = 0, period = 0, dist = 0;
-
-	if (cnt == 0 || cnt == dist) {
-		mach_led(-1, 1);
-	} else if (cnt == 7 || cnt == dist + 7) {
-		mach_led(-1, 0);
-	}
-
-	if (++cnt > period) {
-		cnt = 0;
-
-		/*
-		 * The hyperbolic function below modifies the heartbeat period
-		 * length in dependency of the current (5min) load. It goes
-		 * through the points f(0)=126, f(1)=86, f(5)=51, f(inf)->30.
-		 */
-		period = ((672 << FSHIFT) / (5 * avenrun[0] +
-					    (7 << FSHIFT))) + 30;
-		dist = period / 4;
-	}
-}
-
diff --git a/arch/sh64/kernel/pci_sh5.c b/arch/sh64/kernel/pci_sh5.c
deleted file mode 100644
index b4d9534d2b0e..000000000000
--- a/arch/sh64/kernel/pci_sh5.c
+++ /dev/null
@@ -1,536 +0,0 @@
-/*
- * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
- * Copyright (C) 2003, 2004 Paul Mundt
- * Copyright (C) 2004 Richard Curnow
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.
- *
- * Support functions for the SH5 PCI hardware.
- */
-
-#include <linux/kernel.h>
-#include <linux/rwsem.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/types.h>
-#include <asm/pci.h>
-#include <linux/irq.h>
-
-#include <asm/io.h>
-#include <asm/hardware.h>
-#include "pci_sh5.h"
-
-static unsigned long pcicr_virt;
-unsigned long pciio_virt;
-
-static void __init pci_fixup_ide_bases(struct pci_dev *d)
-{
-	int i;
-
-	/*
-	 * PCI IDE controllers use non-standard I/O port decoding, respect it.
-	 */
-	if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE)
-		return;
-	printk("PCI: IDE base address fixup for %s\n", pci_name(d));
-	for(i=0; i<4; i++) {
-		struct resource *r = &d->resource[i];
-		if ((r->start & ~0x80) == 0x374) {
-			r->start |= 2;
-			r->end = r->start;
-		}
-	}
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases);
-
-char * __devinit pcibios_setup(char *str)
-{
-	return str;
-}
-
-/* Rounds a number UP to the nearest power of two. Used for
- * sizing the PCI window.
- */
-static u32 __init r2p2(u32 num)
-{
-	int i = 31;
-	u32 tmp = num;
-
-	if (num == 0)
-		return 0;
-
-	do {
-		if (tmp & (1 << 31))
-			break;
-		i--;
-		tmp <<= 1;
-	} while (i >= 0);
-
-	tmp = 1 << i;
-	/* If the original number isn't a power of 2, round it up */
-	if (tmp != num)
-		tmp <<= 1;
-
-	return tmp;
-}
-
-extern unsigned long long memory_start, memory_end;
-
-int __init sh5pci_init(unsigned memStart, unsigned memSize)
-{
-	u32 lsr0;
-	u32 uval;
-
-	pcicr_virt = onchip_remap(SH5PCI_ICR_BASE, 1024, "PCICR");
-	if (!pcicr_virt) {
-		panic("Unable to remap PCICR\n");
-	}
-
-	pciio_virt = onchip_remap(SH5PCI_IO_BASE, 0x10000, "PCIIO");
-	if (!pciio_virt) {
-		panic("Unable to remap PCIIO\n");
-	}
-
-	pr_debug("Register base addres is 0x%08lx\n", pcicr_virt);
-
-	/* Clear snoop registers */
-        SH5PCI_WRITE(CSCR0, 0);
-        SH5PCI_WRITE(CSCR1, 0);
-
-	pr_debug("Wrote to reg\n");
-
-        /* Switch off interrupts */
-        SH5PCI_WRITE(INTM,  0);
-        SH5PCI_WRITE(AINTM, 0);
-        SH5PCI_WRITE(PINTM, 0);
-
-        /* Set bus active, take it out of reset */
-        uval = SH5PCI_READ(CR);
-
-	/* Set command Register */
-        SH5PCI_WRITE(CR, uval | CR_LOCK_MASK | CR_CFINT| CR_FTO | CR_PFE | CR_PFCS | CR_BMAM);
-
-	uval=SH5PCI_READ(CR);
-        pr_debug("CR is actually 0x%08x\n",uval);
-
-        /* Allow it to be a master */
-	/* NB - WE DISABLE I/O ACCESS to stop overlap */
-        /* set WAIT bit to enable stepping, an attempt to improve stability */
-	SH5PCI_WRITE_SHORT(CSR_CMD,
-			    PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_WAIT);
-
-        /*
-        ** Set translation mapping memory in order to convert the address
-        ** used for the main bus, to the PCI internal address.
-        */
-        SH5PCI_WRITE(MBR,0x40000000);
-
-        /* Always set the max size 512M */
-        SH5PCI_WRITE(MBMR, PCISH5_MEM_SIZCONV(512*1024*1024));
-
-        /*
-        ** I/O addresses are mapped at internal PCI specific address
-        ** as is described into the configuration bridge table.
-        ** These are changed to 0, to allow cards that have legacy
-        ** io such as vga to function correctly. We set the SH5 IOBAR to
-        ** 256K, which is a bit big as we can only have 64K of address space
-        */
-
-        SH5PCI_WRITE(IOBR,0x0);
-
-	pr_debug("PCI:Writing 0x%08x to IOBR\n",0);
-
-        /* Set up a 256K window. Totally pointless waste  of address space */
-        SH5PCI_WRITE(IOBMR,0);
-	pr_debug("PCI:Writing 0x%08x to IOBMR\n",0);
-
-	/* The SH5 has a HUGE 256K I/O region, which breaks the PCI spec. Ideally,
-         * we would want to map the I/O region somewhere, but it is so big this is not
-         * that easy!
-         */
-	SH5PCI_WRITE(CSR_IBAR0,~0);
-	/* Set memory size value */
-        memSize = memory_end - memory_start;
-
-        /* Now we set up the mbars so the PCI bus can see the memory of the machine */
-        if (memSize < (1024 * 1024)) {
-                printk(KERN_ERR "PCISH5: Ridiculous memory size of 0x%x?\n", memSize);
-                return -EINVAL;
-        }
-
-        /* Set LSR 0 */
-        lsr0 = (memSize > (512 * 1024 * 1024)) ? 0x1ff00001 : ((r2p2(memSize) - 0x100000) | 0x1);
-        SH5PCI_WRITE(LSR0, lsr0);
-
-	pr_debug("PCI:Writing 0x%08x to LSR0\n",lsr0);
-
-        /* Set MBAR 0 */
-        SH5PCI_WRITE(CSR_MBAR0, memory_start);
-        SH5PCI_WRITE(LAR0, memory_start);
-
-        SH5PCI_WRITE(CSR_MBAR1,0);
-        SH5PCI_WRITE(LAR1,0);
-        SH5PCI_WRITE(LSR1,0);
-
-	pr_debug("PCI:Writing 0x%08llx to CSR_MBAR0\n",memory_start);
-	pr_debug("PCI:Writing 0x%08llx to LAR0\n",memory_start);
-
-        /* Enable the PCI interrupts on the device */
-        SH5PCI_WRITE(INTM,  ~0);
-        SH5PCI_WRITE(AINTM, ~0);
-        SH5PCI_WRITE(PINTM, ~0);
-
-	pr_debug("Switching on all error interrupts\n");
-
-        return(0);
-}
-
-static int sh5pci_read(struct pci_bus *bus, unsigned int devfn, int where,
-			int size, u32 *val)
-{
-	SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
-
-	switch (size) {
-		case 1:
-			*val = (u8)SH5PCI_READ_BYTE(PDR + (where & 3));
-			break;
-		case 2:
-			*val = (u16)SH5PCI_READ_SHORT(PDR + (where & 2));
-			break;
-		case 4:
-			*val = SH5PCI_READ(PDR);
-			break;
-	}
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int sh5pci_write(struct pci_bus *bus, unsigned int devfn, int where,
-			 int size, u32 val)
-{
-	SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
-
-	switch (size) {
-		case 1:
-			SH5PCI_WRITE_BYTE(PDR + (where & 3), (u8)val);
-			break;
-		case 2:
-			SH5PCI_WRITE_SHORT(PDR + (where & 2), (u16)val);
-			break;
-		case 4:
-			SH5PCI_WRITE(PDR, val);
-			break;
-	}
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops pci_config_ops = {
-	.read =		sh5pci_read,
-	.write =	sh5pci_write,
-};
-
-/* Everything hangs off this */
-static struct pci_bus *pci_root_bus;
-
-
-static u8 __init no_swizzle(struct pci_dev *dev, u8 * pin)
-{
-	pr_debug("swizzle for dev %d on bus %d slot %d pin is %d\n",
-	         dev->devfn,dev->bus->number, PCI_SLOT(dev->devfn),*pin);
-	return PCI_SLOT(dev->devfn);
-}
-
-static inline u8 bridge_swizzle(u8 pin, u8 slot)
-{
-	return (((pin-1) + slot) % 4) + 1;
-}
-
-u8 __init common_swizzle(struct pci_dev *dev, u8 *pinp)
-{
-	if (dev->bus->number != 0) {
-		u8 pin = *pinp;
-		do {
-			pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
-			/* Move up the chain of bridges. */
-			dev = dev->bus->self;
-		} while (dev->bus->self);
-		*pinp = pin;
-
-		/* The slot is the slot of the last bridge. */
-	}
-
-	return PCI_SLOT(dev->devfn);
-}
-
-/* This needs to be shunted out of here into the board specific bit */
-
-static int __init map_cayman_irq(struct pci_dev *dev, u8 slot, u8 pin)
-{
-	int result = -1;
-
-	/* The complication here is that the PCI IRQ lines from the Cayman's 2
-	   5V slots get into the CPU via a different path from the IRQ lines
-	   from the 3 3.3V slots.  Thus, we have to detect whether the card's
-	   interrupts go via the 5V or 3.3V path, i.e. the 'bridge swizzling'
-	   at the point where we cross from 5V to 3.3V is not the normal case.
-
-	   The added complication is that we don't know that the 5V slots are
-	   always bus 2, because a card containing a PCI-PCI bridge may be
-	   plugged into a 3.3V slot, and this changes the bus numbering.
-
-	   Also, the Cayman has an intermediate PCI bus that goes a custom
-	   expansion board header (and to the secondary bridge).  This bus has
-	   never been used in practice.
-
-	   The 1ary onboard PCI-PCI bridge is device 3 on bus 0
-	   The 2ary onboard PCI-PCI bridge is device 0 on the 2ary bus of the 1ary bridge.
-	   */
-
-	struct slot_pin {
-		int slot;
-		int pin;
-	} path[4];
-	int i=0;
-
-	while (dev->bus->number > 0) {
-
-		slot = path[i].slot = PCI_SLOT(dev->devfn);
-		pin = path[i].pin = bridge_swizzle(pin, slot);
-		dev = dev->bus->self;
-		i++;
-		if (i > 3) panic("PCI path to root bus too long!\n");
-	}
-
-	slot = PCI_SLOT(dev->devfn);
-	/* This is the slot on bus 0 through which the device is eventually
-	   reachable. */
-
-	/* Now work back up. */
-	if ((slot < 3) || (i == 0)) {
-		/* Bus 0 (incl. PCI-PCI bridge itself) : perform the final
-		   swizzle now. */
-		result = IRQ_INTA + bridge_swizzle(pin, slot) - 1;
-	} else {
-		i--;
-		slot = path[i].slot;
-		pin  = path[i].pin;
-		if (slot > 0) {
-			panic("PCI expansion bus device found - not handled!\n");
-		} else {
-			if (i > 0) {
-				/* 5V slots */
-				i--;
-				slot = path[i].slot;
-				pin  = path[i].pin;
-				/* 'pin' was swizzled earlier wrt slot, don't do it again. */
-				result = IRQ_P2INTA + (pin - 1);
-			} else {
-				/* IRQ for 2ary PCI-PCI bridge : unused */
-				result = -1;
-			}
-		}
-	}
-
-	return result;
-}
-
-static irqreturn_t pcish5_err_irq(int irq, void *dev_id)
-{
-	struct pt_regs *regs = get_irq_regs();
-	unsigned pci_int, pci_air, pci_cir, pci_aint;
-
-	pci_int = SH5PCI_READ(INT);
-	pci_cir = SH5PCI_READ(CIR);
-	pci_air = SH5PCI_READ(AIR);
-
-	if (pci_int) {
-		printk("PCI INTERRUPT (at %08llx)!\n", regs->pc);
-		printk("PCI INT -> 0x%x\n", pci_int & 0xffff);
-		printk("PCI AIR -> 0x%x\n", pci_air);
-		printk("PCI CIR -> 0x%x\n", pci_cir);
-		SH5PCI_WRITE(INT, ~0);
-	}
-
-	pci_aint = SH5PCI_READ(AINT);
-	if (pci_aint) {
-		printk("PCI ARB INTERRUPT!\n");
-		printk("PCI AINT -> 0x%x\n", pci_aint);
-		printk("PCI AIR -> 0x%x\n", pci_air);
-		printk("PCI CIR -> 0x%x\n", pci_cir);
-		SH5PCI_WRITE(AINT, ~0);
-	}
-
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t pcish5_serr_irq(int irq, void *dev_id)
-{
-	printk("SERR IRQ\n");
-
-	return IRQ_NONE;
-}
-
-static void __init
-pcibios_size_bridge(struct pci_bus *bus, struct resource *ior,
-		    struct resource *memr)
-{
-	struct resource io_res, mem_res;
-	struct pci_dev *dev;
-	struct pci_dev *bridge = bus->self;
-	struct list_head *ln;
-
-	if (!bridge)
-		return;	/* host bridge, nothing to do */
-
-	/* set reasonable default locations for pcibios_align_resource */
-	io_res.start = PCIBIOS_MIN_IO;
-	mem_res.start = PCIBIOS_MIN_MEM;
-
-	io_res.end = io_res.start;
-	mem_res.end = mem_res.start;
-
-	/* Collect information about how our direct children are layed out. */
-	for (ln=bus->devices.next; ln != &bus->devices; ln=ln->next) {
-		int i;
-		dev = pci_dev_b(ln);
-
-		/* Skip bridges for now */
-		if (dev->class >> 8 == PCI_CLASS_BRIDGE_PCI)
-			continue;
-
-		for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-			struct resource res;
-			unsigned long size;
-
-			memcpy(&res, &dev->resource[i], sizeof(res));
-			size = res.end - res.start + 1;
-
-			if (res.flags & IORESOURCE_IO) {
-				res.start = io_res.end;
-				pcibios_align_resource(dev, &res, size, 0);
-				io_res.end = res.start + size;
-			} else if (res.flags & IORESOURCE_MEM) {
-				res.start = mem_res.end;
-				pcibios_align_resource(dev, &res, size, 0);
-				mem_res.end = res.start + size;
-			}
-		}
-	}
-
-	/* And for all of the subordinate busses. */
-	for (ln=bus->children.next; ln != &bus->children; ln=ln->next)
-		pcibios_size_bridge(pci_bus_b(ln), &io_res, &mem_res);
-
-	/* turn the ending locations into sizes (subtract start) */
-	io_res.end -= io_res.start;
-	mem_res.end -= mem_res.start;
-
-	/* Align the sizes up by bridge rules */
-	io_res.end = ALIGN(io_res.end, 4*1024) - 1;
-	mem_res.end = ALIGN(mem_res.end, 1*1024*1024) - 1;
-
-	/* Adjust the bridge's allocation requirements */
-	bridge->resource[0].end = bridge->resource[0].start + io_res.end;
-	bridge->resource[1].end = bridge->resource[1].start + mem_res.end;
-
-	bridge->resource[PCI_BRIDGE_RESOURCES].end =
-	    bridge->resource[PCI_BRIDGE_RESOURCES].start + io_res.end;
-	bridge->resource[PCI_BRIDGE_RESOURCES+1].end =
-	    bridge->resource[PCI_BRIDGE_RESOURCES+1].start + mem_res.end;
-
-	/* adjust parent's resource requirements */
-	if (ior) {
-		ior->end = ALIGN(ior->end, 4*1024);
-		ior->end += io_res.end;
-	}
-
-	if (memr) {
-		memr->end = ALIGN(memr->end, 1*1024*1024);
-		memr->end += mem_res.end;
-	}
-}
-
-static void __init pcibios_size_bridges(void)
-{
-	struct resource io_res, mem_res;
-
-	memset(&io_res, 0, sizeof(io_res));
-	memset(&mem_res, 0, sizeof(mem_res));
-
-	pcibios_size_bridge(pci_root_bus, &io_res, &mem_res);
-}
-
-static int __init pcibios_init(void)
-{
-        if (request_irq(IRQ_ERR, pcish5_err_irq,
-                        IRQF_DISABLED, "PCI Error",NULL) < 0) {
-                printk(KERN_ERR "PCISH5: Cannot hook PCI_PERR interrupt\n");
-                return -EINVAL;
-        }
-
-        if (request_irq(IRQ_SERR, pcish5_serr_irq,
-                        IRQF_DISABLED, "PCI SERR interrupt", NULL) < 0) {
-                printk(KERN_ERR "PCISH5: Cannot hook PCI_SERR interrupt\n");
-                return -EINVAL;
-        }
-
-	/* The pci subsystem needs to know where memory is and how much
-	 * of it there is. I've simply made these globals. A better mechanism
-	 * is probably needed.
-	 */
-	sh5pci_init(__pa(memory_start),
-		     __pa(memory_end) - __pa(memory_start));
-
-	pci_root_bus = pci_scan_bus(0, &pci_config_ops, NULL);
-	pcibios_size_bridges();
-	pci_assign_unassigned_resources();
-	pci_fixup_irqs(no_swizzle, map_cayman_irq);
-
-	return 0;
-}
-
-subsys_initcall(pcibios_init);
-
-void __devinit pcibios_fixup_bus(struct pci_bus *bus)
-{
-	struct pci_dev *dev = bus->self;
-	int i;
-
-#if 1
-	if(dev) {
-		for(i=0; i<3; i++) {
-			bus->resource[i] =
-				&dev->resource[PCI_BRIDGE_RESOURCES+i];
-			bus->resource[i]->name = bus->name;
-		}
-		bus->resource[0]->flags |= IORESOURCE_IO;
-		bus->resource[1]->flags |= IORESOURCE_MEM;
-
-		/* For now, propagate host limits to the bus;
-		 * we'll adjust them later. */
-
-#if 1
-		bus->resource[0]->end = 64*1024 - 1 ;
-		bus->resource[1]->end = PCIBIOS_MIN_MEM+(256*1024*1024)-1;
-		bus->resource[0]->start = PCIBIOS_MIN_IO;
-		bus->resource[1]->start = PCIBIOS_MIN_MEM;
-#else
-		bus->resource[0]->end = 0;
-		bus->resource[1]->end = 0;
-		bus->resource[0]->start =0;
-		bus->resource[1]->start = 0;
-#endif
-		/* Turn off downstream PF memory address range by default */
-		bus->resource[2]->start = 1024*1024;
-		bus->resource[2]->end = bus->resource[2]->start - 1;
-	}
-#endif
-
-}
-
diff --git a/arch/sh64/kernel/pci_sh5.h b/arch/sh64/kernel/pci_sh5.h
deleted file mode 100644
index c71159dd04b9..000000000000
--- a/arch/sh64/kernel/pci_sh5.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.
- *
- * Definitions for the SH5 PCI hardware.
- */
-
-/* Product ID */
-#define PCISH5_PID		0x350d
-
-/* vendor ID */
-#define PCISH5_VID		0x1054
-
-/* Configuration types */
-#define ST_TYPE0                0x00    /* Configuration cycle type 0 */
-#define ST_TYPE1                0x01    /* Configuration cycle type 1 */
-
-/* VCR data */
-#define PCISH5_VCR_STATUS      0x00
-#define PCISH5_VCR_VERSION     0x08
-
-/*
-** ICR register offsets and bits
-*/
-#define PCISH5_ICR_CR          0x100   /* PCI control register values */
-#define CR_PBAM                 (1<<12)
-#define CR_PFCS                 (1<<11)
-#define CR_FTO                  (1<<10)
-#define CR_PFE                  (1<<9)
-#define CR_TBS                  (1<<8)
-#define CR_SPUE                 (1<<7)
-#define CR_BMAM                 (1<<6)
-#define CR_HOST                 (1<<5)
-#define CR_CLKEN                (1<<4)
-#define CR_SOCS                 (1<<3)
-#define CR_IOCS                 (1<<2)
-#define CR_RSTCTL               (1<<1)
-#define CR_CFINT                (1<<0)
-#define CR_LOCK_MASK            0xa5000000
-
-#define PCISH5_ICR_INT         0x114   /* Interrupt registert values     */
-#define INT_MADIM               (1<<2)
-
-#define PCISH5_ICR_LSR0        0X104   /* Local space register values    */
-#define PCISH5_ICR_LSR1        0X108   /* Local space register values    */
-#define PCISH5_ICR_LAR0        0x10c   /* Local address register values  */
-#define PCISH5_ICR_LAR1        0x110   /* Local address register values  */
-#define PCISH5_ICR_INTM        0x118   /* Interrupt mask register values                         */
-#define PCISH5_ICR_AIR         0x11c   /* Interrupt error address information register values    */
-#define PCISH5_ICR_CIR         0x120   /* Interrupt error command information register values    */
-#define PCISH5_ICR_AINT        0x130   /* Interrupt error arbiter interrupt register values      */
-#define PCISH5_ICR_AINTM       0x134   /* Interrupt error arbiter interrupt mask register values */
-#define PCISH5_ICR_BMIR        0x138   /* Interrupt error info register of bus master values     */
-#define PCISH5_ICR_PAR         0x1c0   /* Pio address register values                            */
-#define PCISH5_ICR_MBR         0x1c4   /* Memory space bank register values                      */
-#define PCISH5_ICR_IOBR        0x1c8   /* I/O space bank register values                         */
-#define PCISH5_ICR_PINT        0x1cc   /* power management interrupt register values             */
-#define PCISH5_ICR_PINTM       0x1d0   /* power management interrupt mask register values        */
-#define PCISH5_ICR_MBMR        0x1d8   /* memory space bank mask register values                 */
-#define PCISH5_ICR_IOBMR       0x1dc   /* I/O space bank mask register values                    */
-#define PCISH5_ICR_CSCR0       0x210   /* PCI cache snoop control register 0                     */
-#define PCISH5_ICR_CSCR1       0x214   /* PCI cache snoop control register 1                     */
-#define PCISH5_ICR_PDR         0x220   /* Pio data register values                               */
-
-/* These are configs space registers */
-#define PCISH5_ICR_CSR_VID     0x000	/* Vendor id                           */
-#define PCISH5_ICR_CSR_DID     0x002   /* Device id                           */
-#define PCISH5_ICR_CSR_CMD     0x004   /* Command register                    */
-#define PCISH5_ICR_CSR_STATUS  0x006   /* Stautus                             */
-#define PCISH5_ICR_CSR_IBAR0   0x010   /* I/O base address register           */
-#define PCISH5_ICR_CSR_MBAR0   0x014   /* First  Memory base address register */
-#define PCISH5_ICR_CSR_MBAR1   0x018   /* Second Memory base address register */
-
-
-
-/* Base address of registers */
-#define SH5PCI_ICR_BASE (PHYS_PCI_BLOCK + 0x00040000)
-#define SH5PCI_IO_BASE  (PHYS_PCI_BLOCK + 0x00800000)
-/* #define SH5PCI_VCR_BASE (P2SEG_PCICB_BLOCK + P2SEG)    */
-
-/* Register selection macro */
-#define PCISH5_ICR_REG(x)                ( pcicr_virt + (PCISH5_ICR_##x))
-/* #define PCISH5_VCR_REG(x)                ( SH5PCI_VCR_BASE (PCISH5_VCR_##x)) */
-
-/* Write I/O functions */
-#define SH5PCI_WRITE(reg,val)        ctrl_outl((u32)(val),PCISH5_ICR_REG(reg))
-#define SH5PCI_WRITE_SHORT(reg,val)  ctrl_outw((u16)(val),PCISH5_ICR_REG(reg))
-#define SH5PCI_WRITE_BYTE(reg,val)   ctrl_outb((u8)(val),PCISH5_ICR_REG(reg))
-
-/* Read I/O functions */
-#define SH5PCI_READ(reg)             ctrl_inl(PCISH5_ICR_REG(reg))
-#define SH5PCI_READ_SHORT(reg)       ctrl_inw(PCISH5_ICR_REG(reg))
-#define SH5PCI_READ_BYTE(reg)        ctrl_inb(PCISH5_ICR_REG(reg))
-
-/* Set PCI config bits */
-#define SET_CONFIG_BITS(bus,devfn,where)  ((((bus) << 16) | ((devfn) << 8) | ((where) & ~3)) | 0x80000000)
-
-/* Set PCI command register */
-#define CONFIG_CMD(bus, devfn, where)            SET_CONFIG_BITS(bus->number,devfn,where)
-
-/* Size converters */
-#define PCISH5_MEM_SIZCONV(x)		  (((x / 0x40000) - 1) << 18)
-#define PCISH5_IO_SIZCONV(x)		  (((x / 0x40000) - 1) << 18)
-
-
diff --git a/arch/sh64/kernel/pcibios.c b/arch/sh64/kernel/pcibios.c
deleted file mode 100644
index 945920bc24db..000000000000
--- a/arch/sh64/kernel/pcibios.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- * $Id: pcibios.c,v 1.1 2001/08/24 12:38:19 dwmw2 Exp $
- *
- * arch/sh/kernel/pcibios.c
- *
- * Copyright (C) 2002 STMicroelectronics Limited
- *   Author : David J. McKay
- *
- * Copyright (C) 2004 Richard Curnow, SuperH UK Limited
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- * This is GPL'd.
- *
- * Provided here are generic versions of:
- *	pcibios_update_resource()
- *	pcibios_align_resource()
- *	pcibios_enable_device()
- *	pcibios_set_master()
- *	pcibios_update_irq()
- *
- * These functions are collected here to reduce duplication of common
- * code amongst the many platform-specific PCI support code files.
- *
- * Platform-specific files are expected to provide:
- *	pcibios_fixup_bus()
- *	pcibios_init()
- *	pcibios_setup()
- *	pcibios_fixup_pbus_ranges()
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-
-void
-pcibios_update_resource(struct pci_dev *dev, struct resource *root,
-			struct resource *res, int resource)
-{
-	u32 new, check;
-	int reg;
-
-	new = res->start | (res->flags & PCI_REGION_FLAG_MASK);
-	if (resource < 6) {
-		reg = PCI_BASE_ADDRESS_0 + 4*resource;
-	} else if (resource == PCI_ROM_RESOURCE) {
-		res->flags |= IORESOURCE_ROM_ENABLE;
-		new |= PCI_ROM_ADDRESS_ENABLE;
-		reg = dev->rom_base_reg;
-	} else {
-		/* Somebody might have asked allocation of a non-standard resource */
-		return;
-	}
-
-	pci_write_config_dword(dev, reg, new);
-	pci_read_config_dword(dev, reg, &check);
-	if ((new ^ check) & ((new & PCI_BASE_ADDRESS_SPACE_IO) ? PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)) {
-		printk(KERN_ERR "PCI: Error while updating region "
-		       "%s/%d (%08x != %08x)\n", pci_name(dev), resource,
-		       new, check);
-	}
-}
-
-/*
- * We need to avoid collisions with `mirrored' VGA ports
- * and other strange ISA hardware, so we always want the
- * addresses to be allocated in the 0x000-0x0ff region
- * modulo 0x400.
- */
-void pcibios_align_resource(void *data, struct resource *res,
-			    resource_size_t size, resource_size_t align)
-{
-	if (res->flags & IORESOURCE_IO) {
-		resource_size_t start = res->start;
-
-		if (start & 0x300) {
-			start = (start + 0x3ff) & ~0x3ff;
-			res->start = start;
-		}
-	}
-}
-
-static void pcibios_enable_bridge(struct pci_dev *dev)
-{
-	struct pci_bus *bus = dev->subordinate;
-	u16 cmd, old_cmd;
-
-	pci_read_config_word(dev, PCI_COMMAND, &cmd);
-	old_cmd = cmd;
-
-	if (bus->resource[0]->flags & IORESOURCE_IO) {
-		cmd |= PCI_COMMAND_IO;
-	}
-	if ((bus->resource[1]->flags & IORESOURCE_MEM) ||
-	    (bus->resource[2]->flags & IORESOURCE_PREFETCH)) {
-		cmd |= PCI_COMMAND_MEMORY;
-	}
-
-	if (cmd != old_cmd) {
-		pci_write_config_word(dev, PCI_COMMAND, cmd);
-	}
-
-	printk("PCI bridge %s, command register -> %04x\n",
-		pci_name(dev), cmd);
-
-}
-
-
-
-int pcibios_enable_device(struct pci_dev *dev, int mask)
-{
-	u16 cmd, old_cmd;
-	int idx;
-	struct resource *r;
-
-	if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
-		pcibios_enable_bridge(dev);
-	}
-
-	pci_read_config_word(dev, PCI_COMMAND, &cmd);
-	old_cmd = cmd;
-	for(idx=0; idx<6; idx++) {
-		if (!(mask & (1 << idx)))
-			continue;
-		r = &dev->resource[idx];
-		if (!r->start && r->end) {
-			printk(KERN_ERR "PCI: Device %s not available because of resource collisions\n", pci_name(dev));
-			return -EINVAL;
-		}
-		if (r->flags & IORESOURCE_IO)
-			cmd |= PCI_COMMAND_IO;
-		if (r->flags & IORESOURCE_MEM)
-			cmd |= PCI_COMMAND_MEMORY;
-	}
-	if (dev->resource[PCI_ROM_RESOURCE].start)
-		cmd |= PCI_COMMAND_MEMORY;
-	if (cmd != old_cmd) {
-		printk(KERN_INFO "PCI: Enabling device %s (%04x -> %04x)\n", pci_name(dev), old_cmd, cmd);
-		pci_write_config_word(dev, PCI_COMMAND, cmd);
-	}
-	return 0;
-}
-
-/*
- *  If we set up a device for bus mastering, we need to check and set
- *  the latency timer as it may not be properly set.
- */
-unsigned int pcibios_max_latency = 255;
-
-void pcibios_set_master(struct pci_dev *dev)
-{
-	u8 lat;
-	pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
-	if (lat < 16)
-		lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency;
-	else if (lat > pcibios_max_latency)
-		lat = pcibios_max_latency;
-	else
-		return;
-	printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n", pci_name(dev), lat);
-	pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
-}
-
-void __init pcibios_update_irq(struct pci_dev *dev, int irq)
-{
-	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
-}
diff --git a/arch/sh64/kernel/setup.c b/arch/sh64/kernel/setup.c
deleted file mode 100644
index 2b7264c0c6f7..000000000000
--- a/arch/sh64/kernel/setup.c
+++ /dev/null
@@ -1,379 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/setup.c
- *
- * sh64 Arch Support
- *
- * This file handles the architecture-dependent parts of initialization
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003, 2004  Paul Mundt
- *
- * benedict.gaster@superh.com:   2nd May 2002
- *    Modified to use the empty_zero_page to pass command line arguments.
- *
- * benedict.gaster@superh.com:	 3rd May 2002
- *    Added support for ramdisk, removing statically linked romfs at the same time.
- *
- * lethal@linux-sh.org:          15th May 2003
- *    Added generic procfs cpuinfo reporting. Make boards just export their name.
- *
- * lethal@linux-sh.org:          25th May 2003
- *    Added generic get_cpu_subtype() for subtype reporting from cpu_data->type.
- *
- */
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/screen_info.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-#include <linux/blkdev.h>
-#include <linux/bootmem.h>
-#include <linux/console.h>
-#include <linux/root_dev.h>
-#include <linux/cpu.h>
-#include <linux/initrd.h>
-#include <linux/pfn.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/platform.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/sections.h>
-#include <asm/setup.h>
-#include <asm/smp.h>
-
-struct screen_info screen_info;
-
-#ifdef CONFIG_BLK_DEV_RAM
-extern int rd_doload;		/* 1 = load ramdisk, 0 = don't load */
-extern int rd_prompt;		/* 1 = prompt for ramdisk, 0 = don't prompt */
-extern int rd_image_start;	/* starting block # of image */
-#endif
-
-extern int root_mountflags;
-extern char *get_system_type(void);
-extern void platform_setup(void);
-extern void platform_monitor(void);
-extern void platform_reserve(void);
-extern int sh64_cache_init(void);
-extern int sh64_tlb_init(void);
-
-#define RAMDISK_IMAGE_START_MASK	0x07FF
-#define RAMDISK_PROMPT_FLAG		0x8000
-#define RAMDISK_LOAD_FLAG		0x4000
-
-static char __initdata command_line[COMMAND_LINE_SIZE] = { 0, };
-unsigned long long memory_start = CONFIG_MEMORY_START;
-unsigned long long memory_end = CONFIG_MEMORY_START + (CONFIG_MEMORY_SIZE_IN_MB * 1024 * 1024);
-
-struct sh_cpuinfo boot_cpu_data;
-
-static inline void parse_mem_cmdline (char ** cmdline_p)
-{
-        char c = ' ', *to = command_line, *from = COMMAND_LINE;
-	int len = 0;
-
-	/* Save unparsed command line copy for /proc/cmdline */
-	memcpy(boot_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
-	boot_command_line[COMMAND_LINE_SIZE-1] = '\0';
-
-	for (;;) {
-	  /*
-	   * "mem=XXX[kKmM]" defines a size of memory.
-	   */
-	        if (c == ' ' && !memcmp(from, "mem=", 4)) {
-		      if (to != command_line)
-			to--;
-		      {
-			unsigned long mem_size;
-
-			mem_size = memparse(from+4, &from);
-			memory_end = memory_start + mem_size;
-		      }
-		}
-		c = *(from++);
-		if (!c)
-		  break;
-		if (COMMAND_LINE_SIZE <= ++len)
-		  break;
-		*(to++) = c;
-	}
-	*to = '\0';
-
-	*cmdline_p = command_line;
-}
-
-static void __init sh64_cpu_type_detect(void)
-{
-	extern unsigned long long peek_real_address_q(unsigned long long addr);
-	unsigned long long cir;
-	/* Do peeks in real mode to avoid having to set up a mapping for the
-	   WPC registers.  On SH5-101 cut2, such a mapping would be exposed to
-	   an address translation erratum which would make it hard to set up
-	   correctly. */
-	cir = peek_real_address_q(0x0d000008);
-
-	if ((cir & 0xffff) == 0x5103) {
-		boot_cpu_data.type = CPU_SH5_103;
-	} else if (((cir >> 32) & 0xffff) == 0x51e2) {
-		/* CPU.VCR aliased at CIR address on SH5-101 */
-		boot_cpu_data.type = CPU_SH5_101;
-	} else {
-		boot_cpu_data.type = CPU_SH_NONE;
-	}
-}
-
-void __init setup_arch(char **cmdline_p)
-{
-	unsigned long bootmap_size, i;
-	unsigned long first_pfn, start_pfn, last_pfn, pages;
-
-#ifdef CONFIG_EARLY_PRINTK
-	extern void enable_early_printk(void);
-
-	/*
-	 * Setup Early SCIF console
-	 */
-	enable_early_printk();
-#endif
-
-	/*
-	 * Setup TLB mappings
-	 */
-	sh64_tlb_init();
-
-	/*
-	 * Caches are already initialized by the time we get here, so we just
-	 * fill in cpu_data info for the caches.
-	 */
-	sh64_cache_init();
-
-	platform_setup();
-	platform_monitor();
-
-	sh64_cpu_type_detect();
-
-	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
-
-#ifdef CONFIG_BLK_DEV_RAM
-	rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
-	rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
-	rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
-#endif
-
-	if (!MOUNT_ROOT_RDONLY)
-		root_mountflags &= ~MS_RDONLY;
-	init_mm.start_code = (unsigned long) _text;
-	init_mm.end_code = (unsigned long) _etext;
-	init_mm.end_data = (unsigned long) _edata;
-	init_mm.brk = (unsigned long) _end;
-
-	code_resource.start = __pa(_text);
-	code_resource.end = __pa(_etext)-1;
-	data_resource.start = __pa(_etext);
-	data_resource.end = __pa(_edata)-1;
-
-	parse_mem_cmdline(cmdline_p);
-
-	/*
-	 * Find the lowest and highest page frame numbers we have available
-	 */
-	first_pfn = PFN_DOWN(memory_start);
-	last_pfn = PFN_DOWN(memory_end);
-	pages = last_pfn - first_pfn;
-
-	/*
-	 * Partially used pages are not usable - thus
-	 * we are rounding upwards:
-	 */
-	start_pfn = PFN_UP(__pa(_end));
-
-	/*
-	 * Find a proper area for the bootmem bitmap. After this
-	 * bootstrap step all allocations (until the page allocator
-	 * is intact) must be done via bootmem_alloc().
-	 */
-	bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
-					 first_pfn,
-					 last_pfn);
-        /*
-         * Round it up.
-         */
-        bootmap_size = PFN_PHYS(PFN_UP(bootmap_size));
-
-	/*
-	 * Register fully available RAM pages with the bootmem allocator.
-	 */
-	free_bootmem_node(NODE_DATA(0), PFN_PHYS(first_pfn), PFN_PHYS(pages));
-
-	/*
-	 * Reserve all kernel sections + bootmem bitmap + a guard page.
-	 */
-	reserve_bootmem_node(NODE_DATA(0), PFN_PHYS(first_pfn),
-		        (PFN_PHYS(start_pfn) + bootmap_size + PAGE_SIZE) - PFN_PHYS(first_pfn));
-
-	/*
-	 * Reserve platform dependent sections
-	 */
-	platform_reserve();
-
-#ifdef CONFIG_BLK_DEV_INITRD
-	if (LOADER_TYPE && INITRD_START) {
-		if (INITRD_START + INITRD_SIZE <= (PFN_PHYS(last_pfn))) {
-		        reserve_bootmem_node(NODE_DATA(0), INITRD_START + __MEMORY_START, INITRD_SIZE);
-
-			initrd_start = (long) INITRD_START + PAGE_OFFSET + __MEMORY_START;
-			initrd_end = initrd_start + INITRD_SIZE;
-		} else {
-			printk("initrd extends beyond end of memory "
-			    "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
-				    (long) INITRD_START + INITRD_SIZE,
-				    PFN_PHYS(last_pfn));
-			initrd_start = 0;
-		}
-	}
-#endif
-
-	/*
-	 * Claim all RAM, ROM, and I/O resources.
-	 */
-
-	/* Kernel RAM */
-	request_resource(&iomem_resource, &code_resource);
-	request_resource(&iomem_resource, &data_resource);
-
-	/* Other KRAM space */
-	for (i = 0; i < STANDARD_KRAM_RESOURCES - 2; i++)
-		request_resource(&iomem_resource,
-				 &platform_parms.kram_res_p[i]);
-
-	/* XRAM space */
-	for (i = 0; i < STANDARD_XRAM_RESOURCES; i++)
-		request_resource(&iomem_resource,
-				 &platform_parms.xram_res_p[i]);
-
-	/* ROM space */
-	for (i = 0; i < STANDARD_ROM_RESOURCES; i++)
-		request_resource(&iomem_resource,
-				 &platform_parms.rom_res_p[i]);
-
-	/* I/O space */
-	for (i = 0; i < STANDARD_IO_RESOURCES; i++)
-		request_resource(&ioport_resource,
-				 &platform_parms.io_res_p[i]);
-
-
-#ifdef CONFIG_VT
-#if defined(CONFIG_VGA_CONSOLE)
-	conswitchp = &vga_con;
-#elif defined(CONFIG_DUMMY_CONSOLE)
-	conswitchp = &dummy_con;
-#endif
-#endif
-
-	printk("Hardware FPU: %s\n", fpu_in_use ? "enabled" : "disabled");
-
-	paging_init();
-}
-
-void __xchg_called_with_bad_pointer(void)
-{
-	printk(KERN_EMERG "xchg() called with bad pointer !\n");
-}
-
-static struct cpu cpu[1];
-
-static int __init topology_init(void)
-{
-	return register_cpu(cpu, 0);
-}
-
-subsys_initcall(topology_init);
-
-/*
- *	Get CPU information
- */
-static const char *cpu_name[] = {
-	[CPU_SH5_101]	= "SH5-101",
-	[CPU_SH5_103]	= "SH5-103",
-	[CPU_SH_NONE]	= "Unknown",
-};
-
-const char *get_cpu_subtype(void)
-{
-	return cpu_name[boot_cpu_data.type];
-}
-
-#ifdef CONFIG_PROC_FS
-static int show_cpuinfo(struct seq_file *m,void *v)
-{
-	unsigned int cpu = smp_processor_id();
-
-	if (!cpu)
-		seq_printf(m, "machine\t\t: %s\n", get_system_type());
-
-	seq_printf(m, "processor\t: %d\n", cpu);
-	seq_printf(m, "cpu family\t: SH-5\n");
-	seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype());
-
-	seq_printf(m, "icache size\t: %dK-bytes\n",
-		   (boot_cpu_data.icache.ways *
-		    boot_cpu_data.icache.sets *
-		    boot_cpu_data.icache.linesz) >> 10);
-	seq_printf(m, "dcache size\t: %dK-bytes\n",
-		   (boot_cpu_data.dcache.ways *
-		    boot_cpu_data.dcache.sets *
-		    boot_cpu_data.dcache.linesz) >> 10);
-	seq_printf(m, "itlb entries\t: %d\n", boot_cpu_data.itlb.entries);
-	seq_printf(m, "dtlb entries\t: %d\n", boot_cpu_data.dtlb.entries);
-
-#define PRINT_CLOCK(name, value) \
-	seq_printf(m, name " clock\t: %d.%02dMHz\n", \
-		     ((value) / 1000000), ((value) % 1000000)/10000)
-
-	PRINT_CLOCK("cpu", boot_cpu_data.cpu_clock);
-	PRINT_CLOCK("bus", boot_cpu_data.bus_clock);
-	PRINT_CLOCK("module", boot_cpu_data.module_clock);
-
-        seq_printf(m, "bogomips\t: %lu.%02lu\n\n",
-		     (loops_per_jiffy*HZ+2500)/500000,
-		     ((loops_per_jiffy*HZ+2500)/5000) % 100);
-
-	return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
-	return (void*)(*pos == 0);
-}
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
-	return NULL;
-}
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-struct seq_operations cpuinfo_op = {
-	.start	= c_start,
-	.next	= c_next,
-	.stop	= c_stop,
-	.show	= show_cpuinfo,
-};
-#endif /* CONFIG_PROC_FS */
diff --git a/arch/sh64/kernel/time.c b/arch/sh64/kernel/time.c
deleted file mode 100644
index d1a9b5b078bd..000000000000
--- a/arch/sh64/kernel/time.c
+++ /dev/null
@@ -1,531 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/time.c
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003 - 2007  Paul Mundt
- * Copyright (C) 2003  Richard Curnow
- *
- *    Original TMU/RTC code taken from sh version.
- *    Copyright (C) 1999  Tetsuya Okada & Niibe Yutaka
- *      Some code taken from i386 version.
- *      Copyright (C) 1991, 1992, 1995  Linus Torvalds
- */
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/profile.h>
-#include <linux/smp.h>
-#include <linux/module.h>
-#include <linux/bcd.h>
-#include <linux/timex.h>
-#include <linux/irq.h>
-#include <linux/platform_device.h>
-#include <asm/registers.h>	 /* required by inline __asm__ stmt. */
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/delay.h>
-#include <asm/hardware.h>
-
-#define TMU_TOCR_INIT	0x00
-#define TMU0_TCR_INIT	0x0020
-#define TMU_TSTR_INIT	1
-#define TMU_TSTR_OFF	0
-
-/* Real Time Clock */
-#define	RTC_BLOCK_OFF	0x01040000
-#define RTC_BASE	PHYS_PERIPHERAL_BLOCK + RTC_BLOCK_OFF
-#define RTC_RCR1_CIE	0x10	/* Carry Interrupt Enable */
-#define RTC_RCR1	(rtc_base + 0x38)
-
-/* Clock, Power and Reset Controller */
-#define	CPRC_BLOCK_OFF	0x01010000
-#define CPRC_BASE	PHYS_PERIPHERAL_BLOCK + CPRC_BLOCK_OFF
-
-#define FRQCR		(cprc_base+0x0)
-#define WTCSR		(cprc_base+0x0018)
-#define STBCR		(cprc_base+0x0030)
-
-/* Time Management Unit */
-#define	TMU_BLOCK_OFF	0x01020000
-#define TMU_BASE	PHYS_PERIPHERAL_BLOCK + TMU_BLOCK_OFF
-#define TMU0_BASE	tmu_base + 0x8 + (0xc * 0x0)
-#define TMU1_BASE	tmu_base + 0x8 + (0xc * 0x1)
-#define TMU2_BASE	tmu_base + 0x8 + (0xc * 0x2)
-
-#define TMU_TOCR	tmu_base+0x0	/* Byte access */
-#define TMU_TSTR	tmu_base+0x4	/* Byte access */
-
-#define TMU0_TCOR	TMU0_BASE+0x0	/* Long access */
-#define TMU0_TCNT	TMU0_BASE+0x4	/* Long access */
-#define TMU0_TCR	TMU0_BASE+0x8	/* Word access */
-
-#define TICK_SIZE (tick_nsec / 1000)
-
-static unsigned long tmu_base, rtc_base;
-unsigned long cprc_base;
-
-/* Variables to allow interpolation of time of day to resolution better than a
- * jiffy. */
-
-/* This is effectively protected by xtime_lock */
-static unsigned long ctc_last_interrupt;
-static unsigned long long usecs_per_jiffy = 1000000/HZ; /* Approximation */
-
-#define CTC_JIFFY_SCALE_SHIFT 40
-
-/* 2**CTC_JIFFY_SCALE_SHIFT / ctc_ticks_per_jiffy */
-static unsigned long long scaled_recip_ctc_ticks_per_jiffy;
-
-/* Estimate number of microseconds that have elapsed since the last timer tick,
-   by scaling the delta that has occurred in the CTC register.
-
-   WARNING WARNING WARNING : This algorithm relies on the CTC decrementing at
-   the CPU clock rate.  If the CPU sleeps, the CTC stops counting.  Bear this
-   in mind if enabling SLEEP_WORKS in process.c.  In that case, this algorithm
-   probably needs to use TMU.TCNT0 instead.  This will work even if the CPU is
-   sleeping, though will be coarser.
-
-   FIXME : What if usecs_per_tick is moving around too much, e.g. if an adjtime
-   is running or if the freq or tick arguments of adjtimex are modified after
-   we have calibrated the scaling factor?  This will result in either a jump at
-   the end of a tick period, or a wrap backwards at the start of the next one,
-   if the application is reading the time of day often enough.  I think we
-   ought to do better than this.  For this reason, usecs_per_jiffy is left
-   separated out in the calculation below.  This allows some future hook into
-   the adjtime-related stuff in kernel/timer.c to remove this hazard.
-
-*/
-
-static unsigned long usecs_since_tick(void)
-{
-	unsigned long long current_ctc;
-	long ctc_ticks_since_interrupt;
-	unsigned long long ull_ctc_ticks_since_interrupt;
-	unsigned long result;
-
-	unsigned long long mul1_out;
-	unsigned long long mul1_out_high;
-	unsigned long long mul2_out_low, mul2_out_high;
-
-	/* Read CTC register */
-	asm ("getcon cr62, %0" : "=r" (current_ctc));
-	/* Note, the CTC counts down on each CPU clock, not up.
-	   Note(2), use long type to get correct wraparound arithmetic when
-	   the counter crosses zero. */
-	ctc_ticks_since_interrupt = (long) ctc_last_interrupt - (long) current_ctc;
-	ull_ctc_ticks_since_interrupt = (unsigned long long) ctc_ticks_since_interrupt;
-
-	/* Inline assembly to do 32x32x32->64 multiplier */
-	asm volatile ("mulu.l %1, %2, %0" :
-	     "=r" (mul1_out) :
-	     "r" (ull_ctc_ticks_since_interrupt), "r" (usecs_per_jiffy));
-
-	mul1_out_high = mul1_out >> 32;
-
-	asm volatile ("mulu.l %1, %2, %0" :
-	     "=r" (mul2_out_low) :
-	     "r" (mul1_out), "r" (scaled_recip_ctc_ticks_per_jiffy));
-
-#if 1
-	asm volatile ("mulu.l %1, %2, %0" :
-	     "=r" (mul2_out_high) :
-	     "r" (mul1_out_high), "r" (scaled_recip_ctc_ticks_per_jiffy));
-#endif
-
-	result = (unsigned long) (((mul2_out_high << 32) + mul2_out_low) >> CTC_JIFFY_SCALE_SHIFT);
-
-	return result;
-}
-
-void do_gettimeofday(struct timeval *tv)
-{
-	unsigned long flags;
-	unsigned long seq;
-	unsigned long usec, sec;
-
-	do {
-		seq = read_seqbegin_irqsave(&xtime_lock, flags);
-		usec = usecs_since_tick();
-		sec = xtime.tv_sec;
-		usec += xtime.tv_nsec / 1000;
-	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
-	while (usec >= 1000000) {
-		usec -= 1000000;
-		sec++;
-	}
-
-	tv->tv_sec = sec;
-	tv->tv_usec = usec;
-}
-
-int do_settimeofday(struct timespec *tv)
-{
-	time_t wtm_sec, sec = tv->tv_sec;
-	long wtm_nsec, nsec = tv->tv_nsec;
-
-	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
-		return -EINVAL;
-
-	write_seqlock_irq(&xtime_lock);
-	/*
-	 * This is revolting. We need to set "xtime" correctly. However, the
-	 * value in this location is the value at the most recent update of
-	 * wall time.  Discover what correction gettimeofday() would have
-	 * made, and then undo it!
-	 */
-	nsec -= 1000 * usecs_since_tick();
-
-	wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
-	wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
-
-	set_normalized_timespec(&xtime, sec, nsec);
-	set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
-
-	ntp_clear();
-	write_sequnlock_irq(&xtime_lock);
-	clock_was_set();
-
-	return 0;
-}
-EXPORT_SYMBOL(do_settimeofday);
-
-/* Dummy RTC ops */
-static void null_rtc_get_time(struct timespec *tv)
-{
-	tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0);
-	tv->tv_nsec = 0;
-}
-
-static int null_rtc_set_time(const time_t secs)
-{
-	return 0;
-}
-
-void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time;
-int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time;
-
-/* last time the RTC clock got updated */
-static long last_rtc_update;
-
-/*
- * timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
- */
-static inline void do_timer_interrupt(void)
-{
-	unsigned long long current_ctc;
-	asm ("getcon cr62, %0" : "=r" (current_ctc));
-	ctc_last_interrupt = (unsigned long) current_ctc;
-
-	do_timer(1);
-#ifndef CONFIG_SMP
-	update_process_times(user_mode(get_irq_regs()));
-#endif
-	if (current->pid)
-		profile_tick(CPU_PROFILING);
-
-#ifdef CONFIG_HEARTBEAT
-	{
-		extern void heartbeat(void);
-
-		heartbeat();
-	}
-#endif
-
-	/*
-	 * If we have an externally synchronized Linux clock, then update
-	 * RTC clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
-	 * called as close as possible to 500 ms before the new second starts.
-	 */
-	if (ntp_synced() &&
-	    xtime.tv_sec > last_rtc_update + 660 &&
-	    (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
-	    (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
-		if (rtc_sh_set_time(xtime.tv_sec) == 0)
-			last_rtc_update = xtime.tv_sec;
-		else
-			/* do it again in 60 s */
-			last_rtc_update = xtime.tv_sec - 600;
-	}
-}
-
-/*
- * This is the same as the above, except we _also_ save the current
- * Time Stamp Counter value at the time of the timer interrupt, so that
- * we later on can estimate the time of day more exactly.
- */
-static irqreturn_t timer_interrupt(int irq, void *dev_id)
-{
-	unsigned long timer_status;
-
-	/* Clear UNF bit */
-	timer_status = ctrl_inw(TMU0_TCR);
-	timer_status &= ~0x100;
-	ctrl_outw(timer_status, TMU0_TCR);
-
-	/*
-	 * Here we are in the timer irq handler. We just have irqs locally
-	 * disabled but we don't know if the timer_bh is running on the other
-	 * CPU. We need to avoid to SMP race with it. NOTE: we don' t need
-	 * the irq version of write_lock because as just said we have irq
-	 * locally disabled. -arca
-	 */
-	write_lock(&xtime_lock);
-	do_timer_interrupt();
-	write_unlock(&xtime_lock);
-
-	return IRQ_HANDLED;
-}
-
-
-static __init unsigned int get_cpu_hz(void)
-{
-	unsigned int count;
-	unsigned long __dummy;
-	unsigned long ctc_val_init, ctc_val;
-
-	/*
-	** Regardless the toolchain, force the compiler to use the
-	** arbitrary register r3 as a clock tick counter.
-	** NOTE: r3 must be in accordance with sh64_rtc_interrupt()
-	*/
-	register unsigned long long  __rtc_irq_flag __asm__ ("r3");
-
-	local_irq_enable();
-	do {} while (ctrl_inb(rtc_base) != 0);
-	ctrl_outb(RTC_RCR1_CIE, RTC_RCR1); /* Enable carry interrupt */
-
-	/*
-	 * r3 is arbitrary. CDC does not support "=z".
-	 */
-	ctc_val_init = 0xffffffff;
-	ctc_val = ctc_val_init;
-
-	asm volatile("gettr	tr0, %1\n\t"
-		     "putcon	%0, " __CTC "\n\t"
-		     "and	%2, r63, %2\n\t"
-		     "pta	$+4, tr0\n\t"
-		     "beq/l	%2, r63, tr0\n\t"
-		     "ptabs	%1, tr0\n\t"
-		     "getcon	" __CTC ", %0\n\t"
-		: "=r"(ctc_val), "=r" (__dummy), "=r" (__rtc_irq_flag)
-		: "0" (0));
-	local_irq_disable();
-	/*
-	 * SH-3:
-	 * CPU clock = 4 stages * loop
-	 * tst    rm,rm      if id ex
-	 * bt/s   1b            if id ex
-	 * add    #1,rd            if id ex
-         *                            (if) pipe line stole
-	 * tst    rm,rm                  if id ex
-         * ....
-	 *
-	 *
-	 * SH-4:
-	 * CPU clock = 6 stages * loop
-	 * I don't know why.
-         * ....
-	 *
-	 * SH-5:
-	 * Use CTC register to count.  This approach returns the right value
-	 * even if the I-cache is disabled (e.g. whilst debugging.)
-	 *
-	 */
-
-	count = ctc_val_init - ctc_val; /* CTC counts down */
-
-#if defined (CONFIG_SH_SIMULATOR)
-	/*
-	 * Let's pretend we are a 5MHz SH-5 to avoid a too
-	 * little timer interval. Also to keep delay
-	 * calibration within a reasonable time.
-	 */
-	return 5000000;
-#else
-	/*
-	 * This really is count by the number of clock cycles
-         * by the ratio between a complete R64CNT
-         * wrap-around (128) and CUI interrupt being raised (64).
-	 */
-	return count*2;
-#endif
-}
-
-static irqreturn_t sh64_rtc_interrupt(int irq, void *dev_id)
-{
-	struct pt_regs *regs = get_irq_regs();
-
-	ctrl_outb(0, RTC_RCR1);	/* Disable Carry Interrupts */
-	regs->regs[3] = 1;	/* Using r3 */
-
-	return IRQ_HANDLED;
-}
-
-static struct irqaction irq0  = {
-	.handler = timer_interrupt,
-	.flags = IRQF_DISABLED,
-	.mask = CPU_MASK_NONE,
-	.name = "timer",
-};
-static struct irqaction irq1  = {
-	.handler = sh64_rtc_interrupt,
-	.flags = IRQF_DISABLED,
-	.mask = CPU_MASK_NONE,
-	.name = "rtc",
-};
-
-void __init time_init(void)
-{
-	unsigned int cpu_clock, master_clock, bus_clock, module_clock;
-	unsigned long interval;
-	unsigned long frqcr, ifc, pfc;
-	static int ifc_table[] = { 2, 4, 6, 8, 10, 12, 16, 24 };
-#define bfc_table ifc_table	/* Same */
-#define pfc_table ifc_table	/* Same */
-
-	tmu_base = onchip_remap(TMU_BASE, 1024, "TMU");
-	if (!tmu_base) {
-		panic("Unable to remap TMU\n");
-	}
-
-	rtc_base = onchip_remap(RTC_BASE, 1024, "RTC");
-	if (!rtc_base) {
-		panic("Unable to remap RTC\n");
-	}
-
-	cprc_base = onchip_remap(CPRC_BASE, 1024, "CPRC");
-	if (!cprc_base) {
-		panic("Unable to remap CPRC\n");
-	}
-
-	rtc_sh_get_time(&xtime);
-
-	setup_irq(TIMER_IRQ, &irq0);
-	setup_irq(RTC_IRQ, &irq1);
-
-	/* Check how fast it is.. */
-	cpu_clock = get_cpu_hz();
-
-	/* Note careful order of operations to maintain reasonable precision and avoid overflow. */
-	scaled_recip_ctc_ticks_per_jiffy = ((1ULL << CTC_JIFFY_SCALE_SHIFT) / (unsigned long long)(cpu_clock / HZ));
-
-	free_irq(RTC_IRQ, NULL);
-
-	printk("CPU clock: %d.%02dMHz\n",
-	       (cpu_clock / 1000000), (cpu_clock % 1000000)/10000);
-	{
-		unsigned short bfc;
-		frqcr = ctrl_inl(FRQCR);
-		ifc  = ifc_table[(frqcr>> 6) & 0x0007];
-		bfc  = bfc_table[(frqcr>> 3) & 0x0007];
-		pfc  = pfc_table[(frqcr>> 12) & 0x0007];
-		master_clock = cpu_clock * ifc;
-		bus_clock = master_clock/bfc;
-	}
-
-	printk("Bus clock: %d.%02dMHz\n",
-	       (bus_clock/1000000), (bus_clock % 1000000)/10000);
-	module_clock = master_clock/pfc;
-	printk("Module clock: %d.%02dMHz\n",
-	       (module_clock/1000000), (module_clock % 1000000)/10000);
-	interval = (module_clock/(HZ*4));
-
-	printk("Interval = %ld\n", interval);
-
-	current_cpu_data.cpu_clock    = cpu_clock;
-	current_cpu_data.master_clock = master_clock;
-	current_cpu_data.bus_clock    = bus_clock;
-	current_cpu_data.module_clock = module_clock;
-
-	/* Start TMU0 */
-	ctrl_outb(TMU_TSTR_OFF, TMU_TSTR);
-	ctrl_outb(TMU_TOCR_INIT, TMU_TOCR);
-	ctrl_outw(TMU0_TCR_INIT, TMU0_TCR);
-	ctrl_outl(interval, TMU0_TCOR);
-	ctrl_outl(interval, TMU0_TCNT);
-	ctrl_outb(TMU_TSTR_INIT, TMU_TSTR);
-}
-
-void enter_deep_standby(void)
-{
-	/* Disable watchdog timer */
-	ctrl_outl(0xa5000000, WTCSR);
-	/* Configure deep standby on sleep */
-	ctrl_outl(0x03, STBCR);
-
-#ifdef CONFIG_SH_ALPHANUMERIC
-	{
-		extern void mach_alphanum(int position, unsigned char value);
-		extern void mach_alphanum_brightness(int setting);
-		char halted[] = "Halted. ";
-		int i;
-		mach_alphanum_brightness(6); /* dimmest setting above off */
-		for (i=0; i<8; i++) {
-			mach_alphanum(i, halted[i]);
-		}
-		asm __volatile__ ("synco");
-	}
-#endif
-
-	asm __volatile__ ("sleep");
-	asm __volatile__ ("synci");
-	asm __volatile__ ("nop");
-	asm __volatile__ ("nop");
-	asm __volatile__ ("nop");
-	asm __volatile__ ("nop");
-	panic("Unexpected wakeup!\n");
-}
-
-static struct resource rtc_resources[] = {
-	[0] = {
-		/* RTC base, filled in by rtc_init */
-		.flags	= IORESOURCE_IO,
-	},
-	[1] = {
-		/* Period IRQ */
-		.start	= IRQ_PRI,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		/* Carry IRQ */
-		.start	= IRQ_CUI,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		/* Alarm IRQ */
-		.start	= IRQ_ATI,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct platform_device rtc_device = {
-	.name		= "sh-rtc",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(rtc_resources),
-	.resource	= rtc_resources,
-};
-
-static int __init rtc_init(void)
-{
-	rtc_resources[0].start	= rtc_base;
-	rtc_resources[0].end	= rtc_resources[0].start + 0x58 - 1;
-
-	return platform_device_register(&rtc_device);
-}
-device_initcall(rtc_init);
-- 
cgit v1.2.3-59-g8ed1b


From b6d7b666097e79a8908e3c43fd55fd291a95e133 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 22 Nov 2007 16:29:10 +0900
Subject: sh: Get the SH-5 PCI support building.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig                  |   1 +
 arch/sh/drivers/pci/Makefile     |   2 +
 arch/sh/drivers/pci/ops-cayman.c |  94 ++++++++
 arch/sh/drivers/pci/ops-sh5.c    |  93 ++++++++
 arch/sh/drivers/pci/pci-sh5.c    | 452 +++++++--------------------------------
 arch/sh/drivers/pci/pci-sh5.h    |  10 +-
 arch/sh/drivers/pci/pci.c        |   2 +-
 include/asm-sh/pci.h             |   5 +-
 8 files changed, 275 insertions(+), 384 deletions(-)
 create mode 100644 arch/sh/drivers/pci/ops-cayman.c
 create mode 100644 arch/sh/drivers/pci/ops-sh5.c

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index c0797b4aadbb..1ad3ce540021 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -512,6 +512,7 @@ config SH_SIMULATOR
 config SH_CAYMAN
 	bool "Hitachi Cayman"
 	depends on CPU_SUBTYPE_SH5_101 || CPU_SUBTYPE_SH5_103
+	select SYS_SUPPORTS_PCI
 
 config SH_HARP
 	bool "ST50 Harp"
diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile
index fba6b5ba0b3a..172e81db9530 100644
--- a/arch/sh/drivers/pci/Makefile
+++ b/arch/sh/drivers/pci/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7751)	+= pci-sh7751.o ops-sh4.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7751R)	+= pci-sh7751.o ops-sh4.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7780)	+= pci-sh7780.o ops-sh4.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7785)	+= pci-sh7780.o ops-sh4.o
+obj-$(CONFIG_CPU_SH5)			+= pci-sh5.o ops-sh5.o
 
 obj-$(CONFIG_SH_DREAMCAST)		+= ops-dreamcast.o fixups-dreamcast.o \
 					   dma-dreamcast.o
@@ -20,3 +21,4 @@ obj-$(CONFIG_SH_TITAN)			+= ops-titan.o
 obj-$(CONFIG_SH_LANDISK)		+= ops-landisk.o
 obj-$(CONFIG_SH_LBOX_RE2)		+= ops-lboxre2.o fixups-lboxre2.o
 obj-$(CONFIG_SH_7780_SOLUTION_ENGINE)	+= ops-se7780.o fixups-se7780.o
+obj-$(CONFIG_SH_CAYMAN)			+= ops-cayman.o
diff --git a/arch/sh/drivers/pci/ops-cayman.c b/arch/sh/drivers/pci/ops-cayman.c
new file mode 100644
index 000000000000..980275ffa30b
--- /dev/null
+++ b/arch/sh/drivers/pci/ops-cayman.c
@@ -0,0 +1,94 @@
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <asm/cpu/irq.h>
+#include "pci-sh5.h"
+
+static inline u8 bridge_swizzle(u8 pin, u8 slot)
+{
+	return (((pin - 1) + slot) % 4) + 1;
+}
+
+int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	int result = -1;
+
+	/* The complication here is that the PCI IRQ lines from the Cayman's 2
+	   5V slots get into the CPU via a different path from the IRQ lines
+	   from the 3 3.3V slots.  Thus, we have to detect whether the card's
+	   interrupts go via the 5V or 3.3V path, i.e. the 'bridge swizzling'
+	   at the point where we cross from 5V to 3.3V is not the normal case.
+
+	   The added complication is that we don't know that the 5V slots are
+	   always bus 2, because a card containing a PCI-PCI bridge may be
+	   plugged into a 3.3V slot, and this changes the bus numbering.
+
+	   Also, the Cayman has an intermediate PCI bus that goes a custom
+	   expansion board header (and to the secondary bridge).  This bus has
+	   never been used in practice.
+
+	   The 1ary onboard PCI-PCI bridge is device 3 on bus 0
+	   The 2ary onboard PCI-PCI bridge is device 0 on the 2ary bus of
+	   the 1ary bridge.
+	   */
+
+	struct slot_pin {
+		int slot;
+		int pin;
+	} path[4];
+	int i=0;
+
+	while (dev->bus->number > 0) {
+
+		slot = path[i].slot = PCI_SLOT(dev->devfn);
+		pin = path[i].pin = bridge_swizzle(pin, slot);
+		dev = dev->bus->self;
+		i++;
+		if (i > 3) panic("PCI path to root bus too long!\n");
+	}
+
+	slot = PCI_SLOT(dev->devfn);
+	/* This is the slot on bus 0 through which the device is eventually
+	   reachable. */
+
+	/* Now work back up. */
+	if ((slot < 3) || (i == 0)) {
+		/* Bus 0 (incl. PCI-PCI bridge itself) : perform the final
+		   swizzle now. */
+		result = IRQ_INTA + bridge_swizzle(pin, slot) - 1;
+	} else {
+		i--;
+		slot = path[i].slot;
+		pin  = path[i].pin;
+		if (slot > 0) {
+			panic("PCI expansion bus device found - not handled!\n");
+		} else {
+			if (i > 0) {
+				/* 5V slots */
+				i--;
+				slot = path[i].slot;
+				pin  = path[i].pin;
+				/* 'pin' was swizzled earlier wrt slot, don't do it again. */
+				result = IRQ_P2INTA + (pin - 1);
+			} else {
+				/* IRQ for 2ary PCI-PCI bridge : unused */
+				result = -1;
+			}
+		}
+	}
+
+	return result;
+}
+
+struct pci_channel board_pci_channels[] = {
+	{ &sh5_pci_ops, NULL, NULL, 0, 0xff },
+	{ NULL, NULL, NULL, 0, 0 },
+};
+EXPORT_SYMBOL(board_pci_channels);
+
+int __init pcibios_init_platform(void)
+{
+	return sh5pci_init(__pa(memory_start),
+			   __pa(memory_end) - __pa(memory_start));
+}
diff --git a/arch/sh/drivers/pci/ops-sh5.c b/arch/sh/drivers/pci/ops-sh5.c
new file mode 100644
index 000000000000..729e38a6fe07
--- /dev/null
+++ b/arch/sh/drivers/pci/ops-sh5.c
@@ -0,0 +1,93 @@
+/*
+ * Support functions for the SH5 PCI hardware.
+ *
+ * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
+ * Copyright (C) 2003, 2004 Paul Mundt
+ * Copyright (C) 2004 Richard Curnow
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ */
+#include <linux/kernel.h>
+#include <linux/rwsem.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/types.h>
+#include <linux/irq.h>
+#include <asm/pci.h>
+#include <asm/io.h>
+#include "pci-sh5.h"
+
+static void __init pci_fixup_ide_bases(struct pci_dev *d)
+{
+	int i;
+
+	/*
+	 * PCI IDE controllers use non-standard I/O port decoding, respect it.
+	 */
+	if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE)
+		return;
+	printk("PCI: IDE base address fixup for %s\n", pci_name(d));
+	for(i=0; i<4; i++) {
+		struct resource *r = &d->resource[i];
+		if ((r->start & ~0x80) == 0x374) {
+			r->start |= 2;
+			r->end = r->start;
+		}
+	}
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases);
+
+char * __devinit pcibios_setup(char *str)
+{
+	return str;
+}
+
+static int sh5pci_read(struct pci_bus *bus, unsigned int devfn, int where,
+			int size, u32 *val)
+{
+	SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
+
+	switch (size) {
+		case 1:
+			*val = (u8)SH5PCI_READ_BYTE(PDR + (where & 3));
+			break;
+		case 2:
+			*val = (u16)SH5PCI_READ_SHORT(PDR + (where & 2));
+			break;
+		case 4:
+			*val = SH5PCI_READ(PDR);
+			break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int sh5pci_write(struct pci_bus *bus, unsigned int devfn, int where,
+			 int size, u32 val)
+{
+	SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
+
+	switch (size) {
+		case 1:
+			SH5PCI_WRITE_BYTE(PDR + (where & 3), (u8)val);
+			break;
+		case 2:
+			SH5PCI_WRITE_SHORT(PDR + (where & 2), (u16)val);
+			break;
+		case 4:
+			SH5PCI_WRITE(PDR, val);
+			break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops sh5_pci_ops = {
+	.read		= sh5pci_read,
+	.write		= sh5pci_write,
+};
diff --git a/arch/sh/drivers/pci/pci-sh5.c b/arch/sh/drivers/pci/pci-sh5.c
index b4d9534d2b0e..a00a4df8c02d 100644
--- a/arch/sh/drivers/pci/pci-sh5.c
+++ b/arch/sh/drivers/pci/pci-sh5.c
@@ -18,40 +18,14 @@
 #include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/types.h>
-#include <asm/pci.h>
 #include <linux/irq.h>
-
+#include <asm/cpu/irq.h>
+#include <asm/pci.h>
 #include <asm/io.h>
-#include <asm/hardware.h>
-#include "pci_sh5.h"
-
-static unsigned long pcicr_virt;
-unsigned long pciio_virt;
-
-static void __init pci_fixup_ide_bases(struct pci_dev *d)
-{
-	int i;
-
-	/*
-	 * PCI IDE controllers use non-standard I/O port decoding, respect it.
-	 */
-	if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE)
-		return;
-	printk("PCI: IDE base address fixup for %s\n", pci_name(d));
-	for(i=0; i<4; i++) {
-		struct resource *r = &d->resource[i];
-		if ((r->start & ~0x80) == 0x374) {
-			r->start |= 2;
-			r->end = r->start;
-		}
-	}
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases);
+#include "pci-sh5.h"
 
-char * __devinit pcibios_setup(char *str)
-{
-	return str;
-}
+unsigned long pcicr_virt;
+unsigned long PCI_IO_AREA;
 
 /* Rounds a number UP to the nearest power of two. Used for
  * sizing the PCI window.
@@ -79,31 +53,73 @@ static u32 __init r2p2(u32 num)
 	return tmp;
 }
 
-extern unsigned long long memory_start, memory_end;
+static irqreturn_t pcish5_err_irq(int irq, void *dev_id)
+{
+	struct pt_regs *regs = get_irq_regs();
+	unsigned pci_int, pci_air, pci_cir, pci_aint;
+
+	pci_int = SH5PCI_READ(INT);
+	pci_cir = SH5PCI_READ(CIR);
+	pci_air = SH5PCI_READ(AIR);
 
-int __init sh5pci_init(unsigned memStart, unsigned memSize)
+	if (pci_int) {
+		printk("PCI INTERRUPT (at %08llx)!\n", regs->pc);
+		printk("PCI INT -> 0x%x\n", pci_int & 0xffff);
+		printk("PCI AIR -> 0x%x\n", pci_air);
+		printk("PCI CIR -> 0x%x\n", pci_cir);
+		SH5PCI_WRITE(INT, ~0);
+	}
+
+	pci_aint = SH5PCI_READ(AINT);
+	if (pci_aint) {
+		printk("PCI ARB INTERRUPT!\n");
+		printk("PCI AINT -> 0x%x\n", pci_aint);
+		printk("PCI AIR -> 0x%x\n", pci_air);
+		printk("PCI CIR -> 0x%x\n", pci_cir);
+		SH5PCI_WRITE(AINT, ~0);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t pcish5_serr_irq(int irq, void *dev_id)
+{
+	printk("SERR IRQ\n");
+
+	return IRQ_NONE;
+}
+
+int __init sh5pci_init(unsigned long memStart, unsigned long memSize)
 {
 	u32 lsr0;
 	u32 uval;
 
+        if (request_irq(IRQ_ERR, pcish5_err_irq,
+                        IRQF_DISABLED, "PCI Error",NULL) < 0) {
+                printk(KERN_ERR "PCISH5: Cannot hook PCI_PERR interrupt\n");
+                return -EINVAL;
+        }
+
+        if (request_irq(IRQ_SERR, pcish5_serr_irq,
+                        IRQF_DISABLED, "PCI SERR interrupt", NULL) < 0) {
+                printk(KERN_ERR "PCISH5: Cannot hook PCI_SERR interrupt\n");
+                return -EINVAL;
+        }
+
 	pcicr_virt = onchip_remap(SH5PCI_ICR_BASE, 1024, "PCICR");
 	if (!pcicr_virt) {
 		panic("Unable to remap PCICR\n");
 	}
 
-	pciio_virt = onchip_remap(SH5PCI_IO_BASE, 0x10000, "PCIIO");
-	if (!pciio_virt) {
+	PCI_IO_AREA = onchip_remap(SH5PCI_IO_BASE, 0x10000, "PCIIO");
+	if (!PCI_IO_AREA) {
 		panic("Unable to remap PCIIO\n");
 	}
 
-	pr_debug("Register base addres is 0x%08lx\n", pcicr_virt);
-
 	/* Clear snoop registers */
         SH5PCI_WRITE(CSCR0, 0);
         SH5PCI_WRITE(CSCR1, 0);
 
-	pr_debug("Wrote to reg\n");
-
         /* Switch off interrupts */
         SH5PCI_WRITE(INTM,  0);
         SH5PCI_WRITE(AINTM, 0);
@@ -113,16 +129,17 @@ int __init sh5pci_init(unsigned memStart, unsigned memSize)
         uval = SH5PCI_READ(CR);
 
 	/* Set command Register */
-        SH5PCI_WRITE(CR, uval | CR_LOCK_MASK | CR_CFINT| CR_FTO | CR_PFE | CR_PFCS | CR_BMAM);
+        SH5PCI_WRITE(CR, uval | CR_LOCK_MASK | CR_CFINT| CR_FTO | CR_PFE |
+		     CR_PFCS | CR_BMAM);
 
 	uval=SH5PCI_READ(CR);
-        pr_debug("CR is actually 0x%08x\n",uval);
 
         /* Allow it to be a master */
 	/* NB - WE DISABLE I/O ACCESS to stop overlap */
         /* set WAIT bit to enable stepping, an attempt to improve stability */
 	SH5PCI_WRITE_SHORT(CSR_CMD,
-			    PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_WAIT);
+			    PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER |
+			    PCI_COMMAND_WAIT);
 
         /*
         ** Set translation mapping memory in order to convert the address
@@ -143,32 +160,30 @@ int __init sh5pci_init(unsigned memStart, unsigned memSize)
 
         SH5PCI_WRITE(IOBR,0x0);
 
-	pr_debug("PCI:Writing 0x%08x to IOBR\n",0);
-
         /* Set up a 256K window. Totally pointless waste  of address space */
         SH5PCI_WRITE(IOBMR,0);
-	pr_debug("PCI:Writing 0x%08x to IOBMR\n",0);
 
-	/* The SH5 has a HUGE 256K I/O region, which breaks the PCI spec. Ideally,
-         * we would want to map the I/O region somewhere, but it is so big this is not
-         * that easy!
+	/* The SH5 has a HUGE 256K I/O region, which breaks the PCI spec.
+	 * Ideally, we would want to map the I/O region somewhere, but it
+	 * is so big this is not that easy!
          */
 	SH5PCI_WRITE(CSR_IBAR0,~0);
 	/* Set memory size value */
         memSize = memory_end - memory_start;
 
-        /* Now we set up the mbars so the PCI bus can see the memory of the machine */
-        if (memSize < (1024 * 1024)) {
-                printk(KERN_ERR "PCISH5: Ridiculous memory size of 0x%x?\n", memSize);
+	/* Now we set up the mbars so the PCI bus can see the memory of
+	 * the machine */
+	if (memSize < (1024 * 1024)) {
+                printk(KERN_ERR "PCISH5: Ridiculous memory size of 0x%lx?\n",
+		       memSize);
                 return -EINVAL;
         }
 
         /* Set LSR 0 */
-        lsr0 = (memSize > (512 * 1024 * 1024)) ? 0x1ff00001 : ((r2p2(memSize) - 0x100000) | 0x1);
+        lsr0 = (memSize > (512 * 1024 * 1024)) ? 0x1ff00001 :
+		((r2p2(memSize) - 0x100000) | 0x1);
         SH5PCI_WRITE(LSR0, lsr0);
 
-	pr_debug("PCI:Writing 0x%08x to LSR0\n",lsr0);
-
         /* Set MBAR 0 */
         SH5PCI_WRITE(CSR_MBAR0, memory_start);
         SH5PCI_WRITE(LAR0, memory_start);
@@ -177,334 +192,21 @@ int __init sh5pci_init(unsigned memStart, unsigned memSize)
         SH5PCI_WRITE(LAR1,0);
         SH5PCI_WRITE(LSR1,0);
 
-	pr_debug("PCI:Writing 0x%08llx to CSR_MBAR0\n",memory_start);
-	pr_debug("PCI:Writing 0x%08llx to LAR0\n",memory_start);
-
         /* Enable the PCI interrupts on the device */
         SH5PCI_WRITE(INTM,  ~0);
         SH5PCI_WRITE(AINTM, ~0);
         SH5PCI_WRITE(PINTM, ~0);
 
-	pr_debug("Switching on all error interrupts\n");
-
-        return(0);
-}
-
-static int sh5pci_read(struct pci_bus *bus, unsigned int devfn, int where,
-			int size, u32 *val)
-{
-	SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
-
-	switch (size) {
-		case 1:
-			*val = (u8)SH5PCI_READ_BYTE(PDR + (where & 3));
-			break;
-		case 2:
-			*val = (u16)SH5PCI_READ_SHORT(PDR + (where & 2));
-			break;
-		case 4:
-			*val = SH5PCI_READ(PDR);
-			break;
-	}
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int sh5pci_write(struct pci_bus *bus, unsigned int devfn, int where,
-			 int size, u32 val)
-{
-	SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
-
-	switch (size) {
-		case 1:
-			SH5PCI_WRITE_BYTE(PDR + (where & 3), (u8)val);
-			break;
-		case 2:
-			SH5PCI_WRITE_SHORT(PDR + (where & 2), (u16)val);
-			break;
-		case 4:
-			SH5PCI_WRITE(PDR, val);
-			break;
-	}
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops pci_config_ops = {
-	.read =		sh5pci_read,
-	.write =	sh5pci_write,
-};
-
-/* Everything hangs off this */
-static struct pci_bus *pci_root_bus;
-
-
-static u8 __init no_swizzle(struct pci_dev *dev, u8 * pin)
-{
-	pr_debug("swizzle for dev %d on bus %d slot %d pin is %d\n",
-	         dev->devfn,dev->bus->number, PCI_SLOT(dev->devfn),*pin);
-	return PCI_SLOT(dev->devfn);
-}
-
-static inline u8 bridge_swizzle(u8 pin, u8 slot)
-{
-	return (((pin-1) + slot) % 4) + 1;
-}
-
-u8 __init common_swizzle(struct pci_dev *dev, u8 *pinp)
-{
-	if (dev->bus->number != 0) {
-		u8 pin = *pinp;
-		do {
-			pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
-			/* Move up the chain of bridges. */
-			dev = dev->bus->self;
-		} while (dev->bus->self);
-		*pinp = pin;
-
-		/* The slot is the slot of the last bridge. */
-	}
-
-	return PCI_SLOT(dev->devfn);
-}
-
-/* This needs to be shunted out of here into the board specific bit */
-
-static int __init map_cayman_irq(struct pci_dev *dev, u8 slot, u8 pin)
-{
-	int result = -1;
-
-	/* The complication here is that the PCI IRQ lines from the Cayman's 2
-	   5V slots get into the CPU via a different path from the IRQ lines
-	   from the 3 3.3V slots.  Thus, we have to detect whether the card's
-	   interrupts go via the 5V or 3.3V path, i.e. the 'bridge swizzling'
-	   at the point where we cross from 5V to 3.3V is not the normal case.
-
-	   The added complication is that we don't know that the 5V slots are
-	   always bus 2, because a card containing a PCI-PCI bridge may be
-	   plugged into a 3.3V slot, and this changes the bus numbering.
-
-	   Also, the Cayman has an intermediate PCI bus that goes a custom
-	   expansion board header (and to the secondary bridge).  This bus has
-	   never been used in practice.
-
-	   The 1ary onboard PCI-PCI bridge is device 3 on bus 0
-	   The 2ary onboard PCI-PCI bridge is device 0 on the 2ary bus of the 1ary bridge.
-	   */
-
-	struct slot_pin {
-		int slot;
-		int pin;
-	} path[4];
-	int i=0;
-
-	while (dev->bus->number > 0) {
-
-		slot = path[i].slot = PCI_SLOT(dev->devfn);
-		pin = path[i].pin = bridge_swizzle(pin, slot);
-		dev = dev->bus->self;
-		i++;
-		if (i > 3) panic("PCI path to root bus too long!\n");
-	}
-
-	slot = PCI_SLOT(dev->devfn);
-	/* This is the slot on bus 0 through which the device is eventually
-	   reachable. */
-
-	/* Now work back up. */
-	if ((slot < 3) || (i == 0)) {
-		/* Bus 0 (incl. PCI-PCI bridge itself) : perform the final
-		   swizzle now. */
-		result = IRQ_INTA + bridge_swizzle(pin, slot) - 1;
-	} else {
-		i--;
-		slot = path[i].slot;
-		pin  = path[i].pin;
-		if (slot > 0) {
-			panic("PCI expansion bus device found - not handled!\n");
-		} else {
-			if (i > 0) {
-				/* 5V slots */
-				i--;
-				slot = path[i].slot;
-				pin  = path[i].pin;
-				/* 'pin' was swizzled earlier wrt slot, don't do it again. */
-				result = IRQ_P2INTA + (pin - 1);
-			} else {
-				/* IRQ for 2ary PCI-PCI bridge : unused */
-				result = -1;
-			}
-		}
-	}
-
-	return result;
-}
-
-static irqreturn_t pcish5_err_irq(int irq, void *dev_id)
-{
-	struct pt_regs *regs = get_irq_regs();
-	unsigned pci_int, pci_air, pci_cir, pci_aint;
-
-	pci_int = SH5PCI_READ(INT);
-	pci_cir = SH5PCI_READ(CIR);
-	pci_air = SH5PCI_READ(AIR);
-
-	if (pci_int) {
-		printk("PCI INTERRUPT (at %08llx)!\n", regs->pc);
-		printk("PCI INT -> 0x%x\n", pci_int & 0xffff);
-		printk("PCI AIR -> 0x%x\n", pci_air);
-		printk("PCI CIR -> 0x%x\n", pci_cir);
-		SH5PCI_WRITE(INT, ~0);
-	}
-
-	pci_aint = SH5PCI_READ(AINT);
-	if (pci_aint) {
-		printk("PCI ARB INTERRUPT!\n");
-		printk("PCI AINT -> 0x%x\n", pci_aint);
-		printk("PCI AIR -> 0x%x\n", pci_air);
-		printk("PCI CIR -> 0x%x\n", pci_cir);
-		SH5PCI_WRITE(AINT, ~0);
-	}
-
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t pcish5_serr_irq(int irq, void *dev_id)
-{
-	printk("SERR IRQ\n");
-
-	return IRQ_NONE;
-}
-
-static void __init
-pcibios_size_bridge(struct pci_bus *bus, struct resource *ior,
-		    struct resource *memr)
-{
-	struct resource io_res, mem_res;
-	struct pci_dev *dev;
-	struct pci_dev *bridge = bus->self;
-	struct list_head *ln;
-
-	if (!bridge)
-		return;	/* host bridge, nothing to do */
-
-	/* set reasonable default locations for pcibios_align_resource */
-	io_res.start = PCIBIOS_MIN_IO;
-	mem_res.start = PCIBIOS_MIN_MEM;
-
-	io_res.end = io_res.start;
-	mem_res.end = mem_res.start;
-
-	/* Collect information about how our direct children are layed out. */
-	for (ln=bus->devices.next; ln != &bus->devices; ln=ln->next) {
-		int i;
-		dev = pci_dev_b(ln);
-
-		/* Skip bridges for now */
-		if (dev->class >> 8 == PCI_CLASS_BRIDGE_PCI)
-			continue;
-
-		for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-			struct resource res;
-			unsigned long size;
-
-			memcpy(&res, &dev->resource[i], sizeof(res));
-			size = res.end - res.start + 1;
-
-			if (res.flags & IORESOURCE_IO) {
-				res.start = io_res.end;
-				pcibios_align_resource(dev, &res, size, 0);
-				io_res.end = res.start + size;
-			} else if (res.flags & IORESOURCE_MEM) {
-				res.start = mem_res.end;
-				pcibios_align_resource(dev, &res, size, 0);
-				mem_res.end = res.start + size;
-			}
-		}
-	}
-
-	/* And for all of the subordinate busses. */
-	for (ln=bus->children.next; ln != &bus->children; ln=ln->next)
-		pcibios_size_bridge(pci_bus_b(ln), &io_res, &mem_res);
-
-	/* turn the ending locations into sizes (subtract start) */
-	io_res.end -= io_res.start;
-	mem_res.end -= mem_res.start;
-
-	/* Align the sizes up by bridge rules */
-	io_res.end = ALIGN(io_res.end, 4*1024) - 1;
-	mem_res.end = ALIGN(mem_res.end, 1*1024*1024) - 1;
-
-	/* Adjust the bridge's allocation requirements */
-	bridge->resource[0].end = bridge->resource[0].start + io_res.end;
-	bridge->resource[1].end = bridge->resource[1].start + mem_res.end;
-
-	bridge->resource[PCI_BRIDGE_RESOURCES].end =
-	    bridge->resource[PCI_BRIDGE_RESOURCES].start + io_res.end;
-	bridge->resource[PCI_BRIDGE_RESOURCES+1].end =
-	    bridge->resource[PCI_BRIDGE_RESOURCES+1].start + mem_res.end;
-
-	/* adjust parent's resource requirements */
-	if (ior) {
-		ior->end = ALIGN(ior->end, 4*1024);
-		ior->end += io_res.end;
-	}
-
-	if (memr) {
-		memr->end = ALIGN(memr->end, 1*1024*1024);
-		memr->end += mem_res.end;
-	}
-}
-
-static void __init pcibios_size_bridges(void)
-{
-	struct resource io_res, mem_res;
-
-	memset(&io_res, 0, sizeof(io_res));
-	memset(&mem_res, 0, sizeof(mem_res));
-
-	pcibios_size_bridge(pci_root_bus, &io_res, &mem_res);
-}
-
-static int __init pcibios_init(void)
-{
-        if (request_irq(IRQ_ERR, pcish5_err_irq,
-                        IRQF_DISABLED, "PCI Error",NULL) < 0) {
-                printk(KERN_ERR "PCISH5: Cannot hook PCI_PERR interrupt\n");
-                return -EINVAL;
-        }
-
-        if (request_irq(IRQ_SERR, pcish5_serr_irq,
-                        IRQF_DISABLED, "PCI SERR interrupt", NULL) < 0) {
-                printk(KERN_ERR "PCISH5: Cannot hook PCI_SERR interrupt\n");
-                return -EINVAL;
-        }
-
-	/* The pci subsystem needs to know where memory is and how much
-	 * of it there is. I've simply made these globals. A better mechanism
-	 * is probably needed.
-	 */
-	sh5pci_init(__pa(memory_start),
-		     __pa(memory_end) - __pa(memory_start));
-
-	pci_root_bus = pci_scan_bus(0, &pci_config_ops, NULL);
-	pcibios_size_bridges();
-	pci_assign_unassigned_resources();
-	pci_fixup_irqs(no_swizzle, map_cayman_irq);
-
 	return 0;
 }
 
-subsys_initcall(pcibios_init);
-
 void __devinit pcibios_fixup_bus(struct pci_bus *bus)
 {
 	struct pci_dev *dev = bus->self;
 	int i;
 
-#if 1
-	if(dev) {
-		for(i=0; i<3; i++) {
+	if (dev) {
+		for (i= 0; i < 3; i++) {
 			bus->resource[i] =
 				&dev->resource[PCI_BRIDGE_RESOURCES+i];
 			bus->resource[i]->name = bus->name;
@@ -514,23 +216,13 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus)
 
 		/* For now, propagate host limits to the bus;
 		 * we'll adjust them later. */
-
-#if 1
 		bus->resource[0]->end = 64*1024 - 1 ;
 		bus->resource[1]->end = PCIBIOS_MIN_MEM+(256*1024*1024)-1;
 		bus->resource[0]->start = PCIBIOS_MIN_IO;
 		bus->resource[1]->start = PCIBIOS_MIN_MEM;
-#else
-		bus->resource[0]->end = 0;
-		bus->resource[1]->end = 0;
-		bus->resource[0]->start =0;
-		bus->resource[1]->start = 0;
-#endif
+
 		/* Turn off downstream PF memory address range by default */
 		bus->resource[2]->start = 1024*1024;
 		bus->resource[2]->end = bus->resource[2]->start - 1;
 	}
-#endif
-
 }
-
diff --git a/arch/sh/drivers/pci/pci-sh5.h b/arch/sh/drivers/pci/pci-sh5.h
index c71159dd04b9..7cff3fc04d30 100644
--- a/arch/sh/drivers/pci/pci-sh5.h
+++ b/arch/sh/drivers/pci/pci-sh5.h
@@ -6,6 +6,8 @@
  *
  * Definitions for the SH5 PCI hardware.
  */
+#ifndef __PCI_SH5_H
+#define __PCI_SH5_H
 
 /* Product ID */
 #define PCISH5_PID		0x350d
@@ -73,13 +75,12 @@
 #define PCISH5_ICR_CSR_MBAR0   0x014   /* First  Memory base address register */
 #define PCISH5_ICR_CSR_MBAR1   0x018   /* Second Memory base address register */
 
-
-
 /* Base address of registers */
 #define SH5PCI_ICR_BASE (PHYS_PCI_BLOCK + 0x00040000)
 #define SH5PCI_IO_BASE  (PHYS_PCI_BLOCK + 0x00800000)
 /* #define SH5PCI_VCR_BASE (P2SEG_PCICB_BLOCK + P2SEG)    */
 
+extern unsigned long pcicr_virt;
 /* Register selection macro */
 #define PCISH5_ICR_REG(x)                ( pcicr_virt + (PCISH5_ICR_##x))
 /* #define PCISH5_VCR_REG(x)                ( SH5PCI_VCR_BASE (PCISH5_VCR_##x)) */
@@ -104,4 +105,9 @@
 #define PCISH5_MEM_SIZCONV(x)		  (((x / 0x40000) - 1) << 18)
 #define PCISH5_IO_SIZCONV(x)		  (((x / 0x40000) - 1) << 18)
 
+extern struct pci_ops sh5_pci_ops;
+
+/* arch/sh/drivers/pci/pci-sh5.c */
+int sh5pci_init(unsigned long memStart, unsigned long memSize);
 
+#endif /* __PCI_SH5_H */
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index ccaba368ac9b..49b435c3a57a 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -71,7 +71,7 @@ subsys_initcall(pcibios_init);
  *  Called after each bus is probed, but before its children
  *  are examined.
  */
-void __devinit pcibios_fixup_bus(struct pci_bus *bus)
+void __devinit __weak pcibios_fixup_bus(struct pci_bus *bus)
 {
 	pci_read_bridge_bases(bus);
 }
diff --git a/include/asm-sh/pci.h b/include/asm-sh/pci.h
index 2757ce096ff7..df1d383e18a5 100644
--- a/include/asm-sh/pci.h
+++ b/include/asm-sh/pci.h
@@ -38,9 +38,12 @@ extern struct pci_channel board_pci_channels[];
 #if defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785)
 #define PCI_IO_AREA		0xFE400000
 #define PCI_IO_SIZE		0x00400000
+#elif defined(CONFIG_CPU_SH5)
+extern unsigned long PCI_IO_AREA;
+#define PCI_IO_SIZE		0x00010000
 #else
 #define PCI_IO_AREA		0xFE240000
-#define PCI_IO_SIZE		0X00040000
+#define PCI_IO_SIZE		0x00040000
 #endif
 
 #define PCI_MEM_SIZE		0x01000000
-- 
cgit v1.2.3-59-g8ed1b


From 332fd57b92d26e2ac6112340b98e92bb76117a41 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 22 Nov 2007 17:30:50 +0900
Subject: sh: Bring the SH-5 FPU in line with the SH-4 FPU API.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/sh5/fpu.c  | 16 +++++++---------
 arch/sh/kernel/process_64.c   |  4 ++--
 arch/sh/kernel/ptrace_64.c    |  4 ++--
 arch/sh/kernel/signal_64.c    |  2 +-
 arch/sh/kernel/traps_64.c     |  4 ++--
 include/asm-sh/fpu.h          | 44 +++++++++++++++++++++++++++++++++++++++++++
 include/asm-sh/processor.h    |  2 +-
 include/asm-sh/processor_32.h | 26 -------------------------
 include/asm-sh/processor_64.h | 16 ----------------
 9 files changed, 59 insertions(+), 59 deletions(-)
 create mode 100644 include/asm-sh/fpu.h

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/sh5/fpu.c b/arch/sh/kernel/cpu/sh5/fpu.c
index d3f5e7468dfe..5a391b1a00e2 100644
--- a/arch/sh/kernel/cpu/sh5/fpu.c
+++ b/arch/sh/kernel/cpu/sh5/fpu.c
@@ -30,12 +30,12 @@
 
 static union sh_fpu_union init_fpuregs = {
 	.hard = {
-	  .fp_regs = { [0 ... 63] = sNAN32 },
-	  .fpscr = FPSCR_INIT
+		.fp_regs = { [0 ... 63] = sNAN32 },
+		.fpscr = FPSCR_INIT
 	}
 };
 
-inline void fpsave(struct sh_fpu_hard_struct *fpregs)
+void save_fpu(struct task_struct *tsk, struct pt_regs *regs)
 {
 	asm volatile("fst.p     %0, (0*8), fp0\n\t"
 		     "fst.p     %0, (1*8), fp2\n\t"
@@ -73,11 +73,10 @@ inline void fpsave(struct sh_fpu_hard_struct *fpregs)
 		     "fgetscr   fr63\n\t"
 		     "fst.s     %0, (32*8), fr63\n\t"
 		: /* no output */
-		: "r" (fpregs)
+		: "r" (&tsk->thread.fpu.hard)
 		: "memory");
 }
 
-
 static inline void
 fpload(struct sh_fpu_hard_struct *fpregs)
 {
@@ -153,10 +152,10 @@ do_fpu_state_restore(unsigned long ex, struct pt_regs *regs)
 		return;
 
 	enable_fpu();
-	if (last_task_used_math != NULL) {
+	if (last_task_used_math != NULL)
 		/* Other processes fpu state, save away */
-		fpsave(&last_task_used_math->thread.fpu.hard);
-        }
+		save_fpu(last_task_used_math, regs);
+
         last_task_used_math = current;
         if (used_math()) {
                 fpload(&current->thread.fpu.hard);
@@ -167,4 +166,3 @@ do_fpu_state_restore(unsigned long ex, struct pt_regs *regs)
         }
 	disable_fpu();
 }
-
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index 2dd97eecb44c..973dd1a3d292 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -480,7 +480,7 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
 	if (fpvalid) {
 		if (current == last_task_used_math) {
 			enable_fpu();
-			fpsave(&tsk->thread.fpu.hard);
+			save_fpu(tsk, regs);
 			disable_fpu();
 			last_task_used_math = 0;
 			regs->sr |= SR_FD;
@@ -507,7 +507,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 #ifdef CONFIG_SH_FPU
 	if(last_task_used_math == current) {
 		enable_fpu();
-		fpsave(&current->thread.fpu.hard);
+		save_fpu(current, regs);
 		disable_fpu();
 		last_task_used_math = NULL;
 		regs->sr |= SR_FD;
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index 51bb546365cb..e9cc6ebd2cea 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -75,7 +75,7 @@ get_fpu_long(struct task_struct *task, unsigned long addr)
 
 	if (last_task_used_math == task) {
 		enable_fpu();
-		fpsave(&task->thread.fpu.hard);
+		save_fpu(task, regs);
 		disable_fpu();
 		last_task_used_math = 0;
 		regs->sr |= SR_FD;
@@ -111,7 +111,7 @@ put_fpu_long(struct task_struct *task, unsigned long addr, unsigned long data)
 		set_stopped_child_used_math(task);
 	} else if (last_task_used_math == task) {
 		enable_fpu();
-		fpsave(&task->thread.fpu.hard);
+		save_fpu(task, regs);
 		disable_fpu();
 		last_task_used_math = 0;
 		regs->sr |= SR_FD;
diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c
index 08f403e23662..922891960c33 100644
--- a/arch/sh/kernel/signal_64.c
+++ b/arch/sh/kernel/signal_64.c
@@ -212,7 +212,7 @@ setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
 
 	if (current == last_task_used_math) {
 		enable_fpu();
-		fpsave(&current->thread.fpu.hard);
+		save_fpu(current, regs);
 		disable_fpu();
 		last_task_used_math = NULL;
 		regs->sr |= SR_FD;
diff --git a/arch/sh/kernel/traps_64.c b/arch/sh/kernel/traps_64.c
index 0f4ea3ac3e0b..b8020f26b635 100644
--- a/arch/sh/kernel/traps_64.c
+++ b/arch/sh/kernel/traps_64.c
@@ -618,7 +618,7 @@ static int misaligned_fpu_load(struct pt_regs *regs,
 		   indexed by register number. */
 		if (last_task_used_math == current) {
 			enable_fpu();
-			fpsave(&current->thread.fpu.hard);
+			save_fpu(current, regs);
 			disable_fpu();
 			last_task_used_math = NULL;
 			regs->sr |= SR_FD;
@@ -691,7 +691,7 @@ static int misaligned_fpu_store(struct pt_regs *regs,
 		   indexed by register number. */
 		if (last_task_used_math == current) {
 			enable_fpu();
-			fpsave(&current->thread.fpu.hard);
+			save_fpu(current, regs);
 			disable_fpu();
 			last_task_used_math = NULL;
 			regs->sr |= SR_FD;
diff --git a/include/asm-sh/fpu.h b/include/asm-sh/fpu.h
new file mode 100644
index 000000000000..33db698a6b4d
--- /dev/null
+++ b/include/asm-sh/fpu.h
@@ -0,0 +1,44 @@
+#ifndef __ASM_SH_FPU_H
+#define __ASM_SH_FPU_H
+
+#define SR_FD    0x00008000
+
+#ifndef __ASSEMBLY__
+#include <asm/ptrace.h>
+
+#ifdef CONFIG_SH_FPU
+static inline void release_fpu(struct pt_regs *regs)
+{
+	regs->sr |= SR_FD;
+}
+
+static inline void grab_fpu(struct pt_regs *regs)
+{
+	regs->sr &= ~SR_FD;
+}
+
+struct task_struct;
+
+extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs);
+#else
+#define release_fpu(regs)	do { } while (0)
+#define grab_fpu(regs)		do { } while (0)
+#define save_fpu(tsk, regs)	do { } while (0)
+#endif
+
+#define unlazy_fpu(tsk, regs) do {			\
+	if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {	\
+		save_fpu(tsk, regs);			\
+	}						\
+} while (0)
+
+#define clear_fpu(tsk, regs) do {				\
+	if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {		\
+		clear_tsk_thread_flag(tsk, TIF_USEDFPU);	\
+		release_fpu(regs);				\
+	}							\
+} while (0)
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_SH_FPU_H */
diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h
index f3bd82e95898..3ae2a1c223f2 100644
--- a/include/asm-sh/processor.h
+++ b/include/asm-sh/processor.h
@@ -2,9 +2,9 @@
 #define __ASM_SH_PROCESSOR_H
 
 #include <asm/cpu-features.h>
+#include <asm/fpu.h>
 
 #ifndef __ASSEMBLY__
-
 /*
  *  CPU type and hardware bug flags. Kept separately for each CPU.
  *
diff --git a/include/asm-sh/processor_32.h b/include/asm-sh/processor_32.h
index 1ad74633c009..a7edaa1a870c 100644
--- a/include/asm-sh/processor_32.h
+++ b/include/asm-sh/processor_32.h
@@ -65,7 +65,6 @@ extern struct sh_cpuinfo cpu_data[];
  * IMASK-bit:
  *     Interrupt level mask
  */
-#define SR_FD		0x00008000
 #define SR_DSP		0x00001000
 #define SR_IMASK	0x000000f0
 
@@ -178,31 +177,6 @@ static __inline__ void enable_fpu(void)
 			     : "r" (~SR_FD));
 }
 
-static __inline__ void release_fpu(struct pt_regs *regs)
-{
-	regs->sr |= SR_FD;
-}
-
-static __inline__ void grab_fpu(struct pt_regs *regs)
-{
-	regs->sr &= ~SR_FD;
-}
-
-extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs);
-
-#define unlazy_fpu(tsk, regs) do {			\
-	if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {	\
-		save_fpu(tsk, regs);			\
-	}						\
-} while (0)
-
-#define clear_fpu(tsk, regs) do {				\
-	if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {		\
-		clear_tsk_thread_flag(tsk, TIF_USEDFPU);	\
-		release_fpu(regs);				\
-	}							\
-} while (0)
-
 /* Double presision, NANS as NANS, rounding to nearest, no exceptions */
 #define FPSCR_INIT  0x00080000
 
diff --git a/include/asm-sh/processor_64.h b/include/asm-sh/processor_64.h
index f54648229231..99c22b14a85b 100644
--- a/include/asm-sh/processor_64.h
+++ b/include/asm-sh/processor_64.h
@@ -102,8 +102,6 @@ extern struct sh_cpuinfo cpu_data[];
  *     Single step bit
  *
  */
-#define SR_FD    0x00008000
-
 #if defined(CONFIG_SH64_SR_WATCH)
 #define SR_MMU   0x84000000
 #else
@@ -243,16 +241,6 @@ static inline void enable_fpu(void)
 			     : "r" (~SR_FD));
 }
 
-static inline void release_fpu(struct pt_regs *regs)
-{
-	regs->sr |= SR_FD;
-}
-
-static inline void grab_fpu(struct pt_regs *regs)
-{
-	regs->sr &= ~SR_FD;
-}
-
 /* Round to nearest, no exceptions on inexact, overflow, underflow,
    zero-divide, invalid.  Configure option for whether to flush denorms to
    zero, or except if a denorm is encountered.  */
@@ -263,13 +251,9 @@ static inline void grab_fpu(struct pt_regs *regs)
 #endif
 
 #ifdef CONFIG_SH_FPU
-/* Save the current FP regs */
-void fpsave(struct sh_fpu_hard_struct *fpregs);
-
 /* Initialise the FP state of a task */
 void fpinit(struct sh_fpu_hard_struct *fpregs);
 #else
-#define fpsave(fpregs)	do { } while (0)
 #define fpinit(fpregs)	do { } while (0)
 #endif
 
-- 
cgit v1.2.3-59-g8ed1b


From 35a74499a4f5abbfcdf85629d696c8cfdbd2167f Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 23 Nov 2007 13:54:34 +0900
Subject: sh: Fix up default zImage target for sh32.

This was using the absolute path, which was confusing the make target.
Switch it to just 'zImage', as per powerpc.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index afe4e6343248..8da11c0cc6d6 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -67,7 +67,7 @@ OBJCOPYFLAGS	:= -O binary -R .note -R .note.gnu.build-id -R .comment \
 		   -R .stab -R .stabstr -S
 
 # Give the various platforms the opportunity to set default image types
-defaultimage-$(CONFIG_SUPERH32)	:= arch/sh/boot/zImage
+defaultimage-$(CONFIG_SUPERH32)	:= zImage
 
 # Set some sensible Kbuild defaults
 KBUILD_DEFCONFIG	:= r7780rp_defconfig
-- 
cgit v1.2.3-59-g8ed1b


From 0dcb957db5eb658d636097a9283dabdbf59de283 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 23 Nov 2007 13:55:02 +0900
Subject: sh: Build fixes for lib32 clear_page.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/lib/clear_page.S | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/lib/clear_page.S b/arch/sh/lib/clear_page.S
index 7a7c81ee3f01..36d44ef2b8a2 100644
--- a/arch/sh/lib/clear_page.S
+++ b/arch/sh/lib/clear_page.S
@@ -9,10 +9,10 @@
 #include <asm/page.h>
 
 /*
- * clear_page_slow
+ * clear_page
  * @to: P1 address
  *
- * void clear_page_slow(void *to)
+ * void clear_page(void *to)
  */
 
 /*
@@ -20,7 +20,7 @@
  * r4 --- to
  * r5 --- to + PAGE_SIZE
  */
-ENTRY(clear_page_slow)
+ENTRY(clear_page)
 	mov	r4,r5
 	mov.l	.Llimit,r0
 	add	r0,r5
-- 
cgit v1.2.3-59-g8ed1b


From 3e0137f6c7852aff12db0da7bb45f8b3a0a704c8 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 23 Nov 2007 14:17:42 +0900
Subject: sh: Kill off the mach-harp and mach-sim machtypes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig                   |   8 -
 arch/sh/Makefile                  |   2 -
 arch/sh/configs/cayman_defconfig  | 351 ++++++++++++++----
 arch/sh/configs/harp_defconfig    | 745 --------------------------------------
 arch/sh/configs/r7785rp_defconfig |  13 +-
 arch/sh/configs/sim_defconfig     | 558 ----------------------------
 arch/sh/kernel/time_64.c          |   8 -
 arch/sh/mach-harp/Makefile        |   1 -
 arch/sh/mach-harp/setup.c         | 129 -------
 arch/sh/mach-sim/Makefile         |   1 -
 arch/sh/mach-sim/setup.c          | 126 -------
 11 files changed, 294 insertions(+), 1648 deletions(-)
 delete mode 100644 arch/sh/configs/harp_defconfig
 delete mode 100644 arch/sh/configs/sim_defconfig
 delete mode 100644 arch/sh/mach-harp/Makefile
 delete mode 100644 arch/sh/mach-harp/setup.c
 delete mode 100644 arch/sh/mach-sim/Makefile
 delete mode 100644 arch/sh/mach-sim/setup.c

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 1ad3ce540021..d99ba375cc87 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -505,19 +505,11 @@ config SH_MAGIC_PANEL_R2
 	help
 	  Select Magic Panel R2 if configuring for Magic Panel R2.
 
-config SH_SIMULATOR
-	bool "Simulator"
-	depends on SUPERH64
-
 config SH_CAYMAN
 	bool "Hitachi Cayman"
 	depends on CPU_SUBTYPE_SH5_101 || CPU_SUBTYPE_SH5_103
 	select SYS_SUPPORTS_PCI
 
-config SH_HARP
-	bool "ST50 Harp"
-	depends on CPU_SH5
-
 endmenu
 
 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 8da11c0cc6d6..6eb3ee2f3fd9 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -141,9 +141,7 @@ endif
 
 # SH-5 mach types
 # XXX.. to be reconciled with machdir-y later.
-core-$(CONFIG_SH_SIMULATOR)	+= arch/sh/mach-sim/
 core-$(CONFIG_SH_CAYMAN)	+= arch/sh/mach-cayman/
-core-$(CONFIG_SH_HARP)		+= arch/sh/mach-harp/
 
 # Companion chips
 core-$(CONFIG_HD6446X_SERIES)	+= arch/sh/cchips/hd6446x/
diff --git a/arch/sh/configs/cayman_defconfig b/arch/sh/configs/cayman_defconfig
index 1815c682efdc..a05b278d72f5 100644
--- a/arch/sh/configs/cayman_defconfig
+++ b/arch/sh/configs/cayman_defconfig
@@ -1,18 +1,22 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24-rc2
-# Tue Nov 20 14:50:00 2007
+# Linux kernel version: 2.6.24-rc3
+# Fri Nov 23 14:15:55 2007
 #
 CONFIG_SUPERH=y
+# CONFIG_SUPERH32 is not set
 CONFIG_SUPERH64=y
-CONFIG_MMU=y
-CONFIG_QUICKLIST=y
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
 CONFIG_GENERIC_FIND_NEXT_BIT=y
 CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_GENERIC_HARDIRQS=y
 CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+# CONFIG_GENERIC_TIME is not set
+# CONFIG_GENERIC_CLOCKEVENTS is not set
+CONFIG_SYS_SUPPORTS_PCI=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
 # CONFIG_ARCH_HAS_ILOG2_U32 is not set
 # CONFIG_ARCH_HAS_ILOG2_U64 is not set
 CONFIG_ARCH_NO_VIRT_TO_BUS=y
@@ -33,6 +37,7 @@ CONFIG_POSIX_MQUEUE=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 # CONFIG_TASKSTATS is not set
 # CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
 # CONFIG_AUDIT is not set
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
@@ -45,7 +50,7 @@ CONFIG_SYSFS_DEPRECATED=y
 # CONFIG_BLK_DEV_INITRD is not set
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_SYSCTL=y
-# CONFIG_EMBEDDED is not set
+CONFIG_EMBEDDED=y
 CONFIG_UID16=y
 CONFIG_SYSCTL_SYSCALL=y
 CONFIG_KALLSYMS=y
@@ -97,67 +102,41 @@ CONFIG_DEFAULT_IOSCHED="cfq"
 #
 # System type
 #
-# CONFIG_SH_SIMULATOR is not set
-CONFIG_SH_CAYMAN=y
-# CONFIG_SH_HARP is not set
 CONFIG_CPU_SH5=y
+# CONFIG_CPU_SUBTYPE_SH7619 is not set
+# CONFIG_CPU_SUBTYPE_SH7206 is not set
+# CONFIG_CPU_SUBTYPE_SH7705 is not set
+# CONFIG_CPU_SUBTYPE_SH7706 is not set
+# CONFIG_CPU_SUBTYPE_SH7707 is not set
+# CONFIG_CPU_SUBTYPE_SH7708 is not set
+# CONFIG_CPU_SUBTYPE_SH7709 is not set
+# CONFIG_CPU_SUBTYPE_SH7710 is not set
+# CONFIG_CPU_SUBTYPE_SH7712 is not set
+# CONFIG_CPU_SUBTYPE_SH7720 is not set
+# CONFIG_CPU_SUBTYPE_SH7750 is not set
+# CONFIG_CPU_SUBTYPE_SH7091 is not set
+# CONFIG_CPU_SUBTYPE_SH7750R is not set
+# CONFIG_CPU_SUBTYPE_SH7750S is not set
+# CONFIG_CPU_SUBTYPE_SH7751 is not set
+# CONFIG_CPU_SUBTYPE_SH7751R is not set
+# CONFIG_CPU_SUBTYPE_SH7760 is not set
+# CONFIG_CPU_SUBTYPE_SH4_202 is not set
+# CONFIG_CPU_SUBTYPE_SH7770 is not set
+# CONFIG_CPU_SUBTYPE_SH7780 is not set
+# CONFIG_CPU_SUBTYPE_SH7785 is not set
+# CONFIG_CPU_SUBTYPE_SHX3 is not set
+# CONFIG_CPU_SUBTYPE_SH7343 is not set
+# CONFIG_CPU_SUBTYPE_SH7722 is not set
 CONFIG_CPU_SUBTYPE_SH5_101=y
 # CONFIG_CPU_SUBTYPE_SH5_103 is not set
 
-#
-# Processor features
-#
-CONFIG_CPU_LITTLE_ENDIAN=y
-# CONFIG_CPU_BIG_ENDIAN is not set
-# CONFIG_SH_FPU is not set
-# CONFIG_SH_FPU_EMU is not set
-CONFIG_CPU_HAS_FPU=y
-CONFIG_SH64_PGTABLE_2_LEVEL=y
-# CONFIG_SH64_PGTABLE_3_LEVEL is not set
-CONFIG_SH64_USER_MISALIGNED_FIXUP=y
-
-#
-# Memory options
-#
-CONFIG_CACHED_MEMORY_OFFSET=0x20000000
-CONFIG_MEMORY_START=0x80000000
-CONFIG_MEMORY_SIZE_IN_MB=128
-
-#
-# Cache options
-#
-# CONFIG_DCACHE_WRITE_BACK is not set
-# CONFIG_DCACHE_WRITE_THROUGH is not set
-CONFIG_DCACHE_DISABLED=y
-# CONFIG_ICACHE_DISABLED is not set
-CONFIG_PCIDEVICE_MEMORY_START=C0000000
-CONFIG_DEVICE_MEMORY_START=E0000000
-CONFIG_FLASH_MEMORY_START=0x00000000
-CONFIG_PCI_BLOCK_START=0x40000000
-
-#
-# CPU Subtype specific options
-#
-CONFIG_SH64_ID2815_WORKAROUND=y
-
-#
-# Misc options
-#
-CONFIG_HEARTBEAT=y
-CONFIG_HDSP253_LED=y
-# CONFIG_SH_DMA is not set
-CONFIG_PREEMPT=y
-CONFIG_SH_PCLK_FREQ=50000000
-# CONFIG_HZ_100 is not set
-CONFIG_HZ_250=y
-# CONFIG_HZ_300 is not set
-# CONFIG_HZ_1000 is not set
-CONFIG_HZ=250
-
 #
 # Memory management options
 #
-CONFIG_PAGE_OFFSET=0x80000000
+CONFIG_QUICKLIST=y
+CONFIG_MMU=y
+CONFIG_PAGE_OFFSET=0x20000000
+CONFIG_MEMORY_START=0x80000000
 CONFIG_MEMORY_SIZE=0x00400000
 CONFIG_32BIT=y
 CONFIG_ARCH_FLATMEM_ENABLE=y
@@ -186,7 +165,7 @@ CONFIG_SPARSEMEM_STATIC=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_RESOURCES_64BIT=y
 CONFIG_ZONE_DMA_FLAG=0
-CONFIG_NR_QUICK=1
+CONFIG_NR_QUICK=2
 
 #
 # Cache configuration
@@ -197,11 +176,82 @@ CONFIG_NR_QUICK=1
 CONFIG_CACHE_OFF=y
 
 #
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
+# Processor features
+#
+CONFIG_CPU_LITTLE_ENDIAN=y
+# CONFIG_CPU_BIG_ENDIAN is not set
+CONFIG_SH_FPU=y
+# CONFIG_SH64_FPU_DENORM_FLUSH is not set
+CONFIG_SH64_USER_MISALIGNED_FIXUP=y
+CONFIG_SH64_ID2815_WORKAROUND=y
+CONFIG_CPU_HAS_FPU=y
+
+#
+# Board support
+#
+CONFIG_SH_CAYMAN=y
+
+#
+# Timer and clock configuration
 #
-# CONFIG_PCI is not set
+CONFIG_SH_TIMER_IRQ=16
+CONFIG_SH_PCLK_FREQ=50000000
+# CONFIG_TICK_ONESHOT is not set
+
+#
+# CPU Frequency scaling
+#
+# CONFIG_CPU_FREQ is not set
+
+#
+# DMA support
+#
+
+#
+# Companion Chips
+#
+
+#
+# Additional SuperH Device Drivers
+#
+CONFIG_HEARTBEAT=y
+# CONFIG_PUSH_SWITCH is not set
+
+#
+# Kernel features
+#
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=250
+# CONFIG_KEXEC is not set
+# CONFIG_CRASH_DUMP is not set
+# CONFIG_PREEMPT_NONE is not set
+# CONFIG_PREEMPT_VOLUNTARY is not set
+CONFIG_PREEMPT=y
+CONFIG_PREEMPT_BKL=y
+CONFIG_GUSA=y
+
+#
+# Boot options
+#
+CONFIG_ZERO_PAGE_OFFSET=0x00001000
+CONFIG_BOOT_LINK_OFFSET=0x00800000
+# CONFIG_CMDLINE_BOOL is not set
+
+#
+# Bus options
+#
+CONFIG_PCI=y
+CONFIG_SH_PCIDMA_NONCOHERENT=y
+CONFIG_PCI_AUTO=y
+CONFIG_PCI_AUTO_UPDATE_RESOURCES=y
 # CONFIG_ARCH_SUPPORTS_MSI is not set
+CONFIG_PCI_LEGACY=y
+# CONFIG_PCI_DEBUG is not set
 # CONFIG_PCCARD is not set
+# CONFIG_HOTPLUG_PCI is not set
 
 #
 # Executable file formats
@@ -310,10 +360,14 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_MTD is not set
 # CONFIG_PARPORT is not set
 CONFIG_BLK_DEV=y
+# CONFIG_BLK_CPQ_CISS_DA is not set
+# CONFIG_BLK_DEV_DAC960 is not set
+# CONFIG_BLK_DEV_UMEM is not set
 # CONFIG_BLK_DEV_COW_COMMON is not set
 CONFIG_BLK_DEV_LOOP=y
 # CONFIG_BLK_DEV_CRYPTOLOOP is not set
 # CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_SX8 is not set
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=4096
@@ -321,7 +375,10 @@ CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
 CONFIG_MISC_DEVICES=y
+# CONFIG_PHANTOM is not set
 # CONFIG_EEPROM_93CX6 is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_TIFM_CORE is not set
 # CONFIG_IDE is not set
 
 #
@@ -363,9 +420,45 @@ CONFIG_SCSI_SPI_ATTRS=y
 # CONFIG_SCSI_SRP_ATTRS is not set
 CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_ISCSI_TCP is not set
+# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
+# CONFIG_SCSI_3W_9XXX is not set
+# CONFIG_SCSI_ACARD is not set
+# CONFIG_SCSI_AACRAID is not set
+# CONFIG_SCSI_AIC7XXX is not set
+# CONFIG_SCSI_AIC7XXX_OLD is not set
+# CONFIG_SCSI_AIC79XX is not set
+# CONFIG_SCSI_AIC94XX is not set
+# CONFIG_SCSI_ARCMSR is not set
+# CONFIG_MEGARAID_NEWGEN is not set
+# CONFIG_MEGARAID_LEGACY is not set
+# CONFIG_MEGARAID_SAS is not set
+# CONFIG_SCSI_HPTIOP is not set
+# CONFIG_SCSI_DMX3191D is not set
+# CONFIG_SCSI_FUTURE_DOMAIN is not set
+# CONFIG_SCSI_IPS is not set
+# CONFIG_SCSI_INITIO is not set
+# CONFIG_SCSI_INIA100 is not set
+# CONFIG_SCSI_STEX is not set
+# CONFIG_SCSI_SYM53C8XX_2 is not set
+# CONFIG_SCSI_QLOGIC_1280 is not set
+# CONFIG_SCSI_QLA_FC is not set
+# CONFIG_SCSI_QLA_ISCSI is not set
+# CONFIG_SCSI_LPFC is not set
+# CONFIG_SCSI_DC395x is not set
+# CONFIG_SCSI_DC390T is not set
+# CONFIG_SCSI_NSP32 is not set
 # CONFIG_SCSI_DEBUG is not set
+# CONFIG_SCSI_SRP is not set
 # CONFIG_ATA is not set
 # CONFIG_MD is not set
+# CONFIG_FUSION is not set
+
+#
+# IEEE 1394 (FireWire) support
+#
+# CONFIG_FIREWIRE is not set
+# CONFIG_IEEE1394 is not set
+# CONFIG_I2O is not set
 CONFIG_NETDEVICES=y
 # CONFIG_NETDEVICES_MULTIQUEUE is not set
 # CONFIG_DUMMY is not set
@@ -374,19 +467,57 @@ CONFIG_NETDEVICES=y
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
 # CONFIG_VETH is not set
+# CONFIG_IP1000 is not set
+# CONFIG_ARCNET is not set
 # CONFIG_PHYLIB is not set
 CONFIG_NET_ETHERNET=y
 # CONFIG_MII is not set
+# CONFIG_AX88796 is not set
 # CONFIG_STNIC is not set
+# CONFIG_HAPPYMEAL is not set
+# CONFIG_SUNGEM is not set
+# CONFIG_CASSINI is not set
+# CONFIG_NET_VENDOR_3COM is not set
 # CONFIG_SMC91X is not set
 # CONFIG_SMC911X is not set
+# CONFIG_NET_TULIP is not set
+# CONFIG_HP100 is not set
 # CONFIG_IBM_NEW_EMAC_ZMII is not set
 # CONFIG_IBM_NEW_EMAC_RGMII is not set
 # CONFIG_IBM_NEW_EMAC_TAH is not set
 # CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_NET_PCI is not set
 # CONFIG_B44 is not set
 CONFIG_NETDEV_1000=y
+# CONFIG_ACENIC is not set
+# CONFIG_DL2K is not set
+# CONFIG_E1000 is not set
+# CONFIG_E1000E is not set
+# CONFIG_NS83820 is not set
+# CONFIG_HAMACHI is not set
+# CONFIG_YELLOWFIN is not set
+# CONFIG_R8169 is not set
+# CONFIG_SIS190 is not set
+# CONFIG_SKGE is not set
+# CONFIG_SKY2 is not set
+# CONFIG_SK98LIN is not set
+# CONFIG_VIA_VELOCITY is not set
+# CONFIG_TIGON3 is not set
+# CONFIG_BNX2 is not set
+# CONFIG_QLA3XXX is not set
+# CONFIG_ATL1 is not set
 CONFIG_NETDEV_10000=y
+# CONFIG_CHELSIO_T1 is not set
+# CONFIG_CHELSIO_T3 is not set
+# CONFIG_IXGBE is not set
+# CONFIG_IXGB is not set
+# CONFIG_S2IO is not set
+# CONFIG_MYRI10GE is not set
+# CONFIG_NETXEN_NIC is not set
+# CONFIG_NIU is not set
+# CONFIG_MLX4_CORE is not set
+# CONFIG_TEHUTI is not set
+# CONFIG_TR is not set
 
 #
 # Wireless LAN
@@ -394,8 +525,11 @@ CONFIG_NETDEV_10000=y
 # CONFIG_WLAN_PRE80211 is not set
 # CONFIG_WLAN_80211 is not set
 # CONFIG_WAN is not set
+# CONFIG_FDDI is not set
+# CONFIG_HIPPI is not set
 # CONFIG_PPP is not set
 # CONFIG_SLIP is not set
+# CONFIG_NET_FC is not set
 # CONFIG_SHAPER is not set
 # CONFIG_NETCONSOLE is not set
 # CONFIG_NETPOLL is not set
@@ -455,14 +589,17 @@ CONFIG_HW_CONSOLE=y
 # Non-8250 serial port support
 #
 # CONFIG_SERIAL_SH_SCI is not set
+# CONFIG_SERIAL_JSM is not set
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
 CONFIG_HW_RANDOM=y
 # CONFIG_R3964 is not set
+# CONFIG_APPLICOM is not set
 # CONFIG_RAW_DRIVER is not set
 # CONFIG_TCG_TPM is not set
+CONFIG_DEVPORT=y
 CONFIG_I2C=m
 CONFIG_I2C_BOARDINFO=y
 # CONFIG_I2C_CHARDEV is not set
@@ -477,11 +614,28 @@ CONFIG_I2C_BOARDINFO=y
 #
 # I2C Hardware Bus support
 #
+# CONFIG_I2C_ALI1535 is not set
+# CONFIG_I2C_ALI1563 is not set
+# CONFIG_I2C_ALI15X3 is not set
+# CONFIG_I2C_AMD756 is not set
+# CONFIG_I2C_AMD8111 is not set
+# CONFIG_I2C_I801 is not set
+# CONFIG_I2C_I810 is not set
+# CONFIG_I2C_PIIX4 is not set
+# CONFIG_I2C_NFORCE2 is not set
 # CONFIG_I2C_OCORES is not set
 # CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_PROSAVAGE is not set
+# CONFIG_I2C_SAVAGE4 is not set
 # CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_SIS5595 is not set
+# CONFIG_I2C_SIS630 is not set
+# CONFIG_I2C_SIS96X is not set
 # CONFIG_I2C_TAOS_EVM is not set
 # CONFIG_I2C_STUB is not set
+# CONFIG_I2C_VIA is not set
+# CONFIG_I2C_VIAPRO is not set
+# CONFIG_I2C_VOODOO3 is not set
 
 #
 # Miscellaneous I2C Chip support
@@ -519,6 +673,7 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_ADT7470 is not set
 # CONFIG_SENSORS_ATXP1 is not set
 # CONFIG_SENSORS_DS1621 is not set
+# CONFIG_SENSORS_I5K_AMB is not set
 # CONFIG_SENSORS_F71805F is not set
 # CONFIG_SENSORS_F71882FG is not set
 # CONFIG_SENSORS_F75375S is not set
@@ -540,12 +695,15 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_MAX6650 is not set
 # CONFIG_SENSORS_PC87360 is not set
 # CONFIG_SENSORS_PC87427 is not set
+# CONFIG_SENSORS_SIS5595 is not set
 # CONFIG_SENSORS_DME1737 is not set
 # CONFIG_SENSORS_SMSC47M1 is not set
 # CONFIG_SENSORS_SMSC47M192 is not set
 # CONFIG_SENSORS_SMSC47B397 is not set
 # CONFIG_SENSORS_THMC50 is not set
+# CONFIG_SENSORS_VIA686A is not set
 # CONFIG_SENSORS_VT1211 is not set
+# CONFIG_SENSORS_VT8231 is not set
 # CONFIG_SENSORS_W83781D is not set
 # CONFIG_SENSORS_W83791D is not set
 # CONFIG_SENSORS_W83792D is not set
@@ -562,6 +720,12 @@ CONFIG_WATCHDOG=y
 #
 # CONFIG_SOFT_WATCHDOG is not set
 
+#
+# PCI-based Watchdog Cards
+#
+# CONFIG_PCIPCWATCHDOG is not set
+# CONFIG_WDTPCI is not set
+
 #
 # Sonics Silicon Backplane
 #
@@ -586,12 +750,35 @@ CONFIG_VIDEO_HELPER_CHIPS_AUTO=y
 # CONFIG_VIDEO_VIVI is not set
 # CONFIG_VIDEO_SAA5246A is not set
 # CONFIG_VIDEO_SAA5249 is not set
+# CONFIG_VIDEO_SAA7134 is not set
+# CONFIG_VIDEO_HEXIUM_ORION is not set
+# CONFIG_VIDEO_HEXIUM_GEMINI is not set
+# CONFIG_VIDEO_CX88 is not set
+# CONFIG_VIDEO_CX23885 is not set
+# CONFIG_VIDEO_CAFE_CCIC is not set
 # CONFIG_RADIO_ADAPTERS is not set
 CONFIG_DVB_CORE=y
 # CONFIG_DVB_CORE_ATTACH is not set
 CONFIG_DVB_CAPTURE_DRIVERS=y
+
+#
+# Supported SAA7146 based PCI Adapters
+#
+
+#
+# Supported FlexCopII (B2C2) Adapters
+#
 # CONFIG_DVB_B2C2_FLEXCOP is not set
 
+#
+# Supported BT878 Adapters
+#
+
+#
+# Supported Pluto2 Adapters
+#
+# CONFIG_DVB_PLUTO2 is not set
+
 #
 # Supported DVB Frontends
 #
@@ -671,6 +858,7 @@ CONFIG_DAB=y
 #
 # Graphics support
 #
+# CONFIG_DRM is not set
 # CONFIG_VGASTATE is not set
 CONFIG_VIDEO_OUTPUT_CONTROL=y
 CONFIG_FB=y
@@ -694,7 +882,29 @@ CONFIG_FB_MODE_HELPERS=y
 #
 # Frame buffer hardware drivers
 #
+# CONFIG_FB_CIRRUS is not set
+# CONFIG_FB_PM2 is not set
+# CONFIG_FB_CYBER2000 is not set
+# CONFIG_FB_ASILIANT is not set
+# CONFIG_FB_IMSTT is not set
 # CONFIG_FB_S1D13XXX is not set
+# CONFIG_FB_NVIDIA is not set
+# CONFIG_FB_RIVA is not set
+# CONFIG_FB_MATROX is not set
+# CONFIG_FB_RADEON is not set
+# CONFIG_FB_ATY128 is not set
+# CONFIG_FB_ATY is not set
+# CONFIG_FB_S3 is not set
+# CONFIG_FB_SAVAGE is not set
+# CONFIG_FB_SIS is not set
+# CONFIG_FB_NEOMAGIC is not set
+# CONFIG_FB_KYRO is not set
+# CONFIG_FB_3DFX is not set
+# CONFIG_FB_VOODOO1 is not set
+# CONFIG_FB_VT8623 is not set
+# CONFIG_FB_TRIDENT is not set
+# CONFIG_FB_ARK is not set
+# CONFIG_FB_PM3 is not set
 # CONFIG_FB_VIRTUAL is not set
 # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
@@ -739,8 +949,8 @@ CONFIG_HID=y
 # CONFIG_HIDRAW is not set
 CONFIG_USB_SUPPORT=y
 CONFIG_USB_ARCH_HAS_HCD=y
-# CONFIG_USB_ARCH_HAS_OHCI is not set
-# CONFIG_USB_ARCH_HAS_EHCI is not set
+CONFIG_USB_ARCH_HAS_OHCI=y
+CONFIG_USB_ARCH_HAS_EHCI=y
 # CONFIG_USB is not set
 
 #
@@ -753,6 +963,7 @@ CONFIG_USB_ARCH_HAS_HCD=y
 # CONFIG_USB_GADGET is not set
 # CONFIG_MMC is not set
 # CONFIG_NEW_LEDS is not set
+# CONFIG_INFINIBAND is not set
 # CONFIG_RTC_CLASS is not set
 
 #
@@ -903,6 +1114,9 @@ CONFIG_DEBUG_PREEMPT=y
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set
 # CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_LOCK_ALLOC is not set
+# CONFIG_PROVE_LOCKING is not set
+# CONFIG_LOCK_STAT is not set
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
 # CONFIG_DEBUG_KOBJECT is not set
@@ -920,10 +1134,13 @@ CONFIG_FORCED_INLINING=y
 # CONFIG_SH_STANDARD_BIOS is not set
 # CONFIG_EARLY_SCIF_CONSOLE is not set
 # CONFIG_DEBUG_BOOTMEM is not set
-# CONFIG_DEBUG_STACKOVERFLOW is not set
 # CONFIG_DEBUG_STACK_USAGE is not set
 # CONFIG_4KSTACKS is not set
-# CONFIG_IRQSTACKS is not set
+CONFIG_SH64_PROC_ASIDS=y
+CONFIG_SH64_SR_WATCH=y
+# CONFIG_POOR_MANS_STRACE is not set
+# CONFIG_SH_ALPHANUMERIC is not set
+# CONFIG_SH_NO_BSS_INIT is not set
 
 #
 # Security options
diff --git a/arch/sh/configs/harp_defconfig b/arch/sh/configs/harp_defconfig
deleted file mode 100644
index ba302cd0c285..000000000000
--- a/arch/sh/configs/harp_defconfig
+++ /dev/null
@@ -1,745 +0,0 @@
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24-rc1
-# Fri Nov  2 14:35:57 2007
-#
-CONFIG_SUPERH=y
-CONFIG_SUPERH64=y
-CONFIG_MMU=y
-CONFIG_QUICKLIST=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_ARCH_NO_VIRT_TO_BUS=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# General setup
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_LOCK_KERNEL=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-CONFIG_SWAP=y
-# CONFIG_SYSVIPC is not set
-CONFIG_POSIX_MQUEUE=y
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_TASKSTATS is not set
-# CONFIG_USER_NS is not set
-# CONFIG_AUDIT is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_CGROUPS is not set
-CONFIG_FAIR_GROUP_SCHED=y
-CONFIG_FAIR_USER_SCHED=y
-# CONFIG_FAIR_CGROUP_SCHED is not set
-CONFIG_SYSFS_DEPRECATED=y
-# CONFIG_RELAY is not set
-# CONFIG_BLK_DEV_INITRD is not set
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_SYSCTL=y
-# CONFIG_EMBEDDED is not set
-CONFIG_UID16=y
-CONFIG_SYSCTL_SYSCALL=y
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_ALL is not set
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_ANON_INODES=y
-CONFIG_EPOLL=y
-CONFIG_SIGNALFD=y
-CONFIG_EVENTFD=y
-CONFIG_SHMEM=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
-# CONFIG_SLOB is not set
-CONFIG_RT_MUTEXES=y
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-# CONFIG_MODULES is not set
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-# CONFIG_BLK_DEV_BSG is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_DEFAULT_AS is not set
-# CONFIG_DEFAULT_DEADLINE is not set
-CONFIG_DEFAULT_CFQ=y
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="cfq"
-
-#
-# System type
-#
-# CONFIG_SH_SIMULATOR is not set
-# CONFIG_SH_CAYMAN is not set
-CONFIG_SH_HARP=y
-CONFIG_CPU_SH5=y
-CONFIG_CPU_SUBTYPE_SH5_101=y
-# CONFIG_CPU_SUBTYPE_SH5_103 is not set
-CONFIG_LITTLE_ENDIAN=y
-# CONFIG_BIG_ENDIAN is not set
-CONFIG_SH_FPU=y
-# CONFIG_SH64_FPU_DENORM_FLUSH is not set
-CONFIG_SH64_PGTABLE_2_LEVEL=y
-# CONFIG_SH64_PGTABLE_3_LEVEL is not set
-CONFIG_HUGETLB_PAGE_SIZE_64K=y
-# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
-# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
-CONFIG_SH64_USER_MISALIGNED_FIXUP=y
-
-#
-# Memory options
-#
-CONFIG_CACHED_MEMORY_OFFSET=0x20000000
-CONFIG_MEMORY_START=0x80000000
-CONFIG_MEMORY_SIZE_IN_MB=128
-
-#
-# Cache options
-#
-CONFIG_DCACHE_WRITE_BACK=y
-# CONFIG_DCACHE_WRITE_THROUGH is not set
-# CONFIG_DCACHE_DISABLED is not set
-# CONFIG_ICACHE_DISABLED is not set
-CONFIG_PCIDEVICE_MEMORY_START=C0000000
-CONFIG_DEVICE_MEMORY_START=E0000000
-CONFIG_FLASH_MEMORY_START=0x00000000
-CONFIG_PCI_BLOCK_START=0x40000000
-
-#
-# CPU Subtype specific options
-#
-CONFIG_SH64_ID2815_WORKAROUND=y
-
-#
-# Misc options
-#
-# CONFIG_SH_DMA is not set
-CONFIG_PREEMPT=y
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-# CONFIG_DISCONTIGMEM_MANUAL is not set
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
-# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=0
-CONFIG_NR_QUICK=1
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-# CONFIG_ARCH_SUPPORTS_MSI is not set
-# CONFIG_PCCARD is not set
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Networking
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-CONFIG_UNIX=y
-CONFIG_XFRM=y
-# CONFIG_XFRM_USER is not set
-# CONFIG_XFRM_SUB_POLICY is not set
-# CONFIG_XFRM_MIGRATE is not set
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_FIB_HASH=y
-CONFIG_IP_PNP=y
-# CONFIG_IP_PNP_DHCP is not set
-# CONFIG_IP_PNP_BOOTP is not set
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_XFRM_TUNNEL is not set
-# CONFIG_INET_TUNNEL is not set
-CONFIG_INET_XFRM_MODE_TRANSPORT=y
-CONFIG_INET_XFRM_MODE_TUNNEL=y
-CONFIG_INET_XFRM_MODE_BEET=y
-# CONFIG_INET_LRO is not set
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
-# CONFIG_TCP_MD5SIG is not set
-# CONFIG_IPV6 is not set
-# CONFIG_INET6_XFRM_TUNNEL is not set
-# CONFIG_INET6_TUNNEL is not set
-# CONFIG_NETWORK_SECMARK is not set
-# CONFIG_NETFILTER is not set
-# CONFIG_IP_DCCP is not set
-# CONFIG_IP_SCTP is not set
-# CONFIG_TIPC is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-# CONFIG_AF_RXRPC is not set
-
-#
-# Wireless
-#
-# CONFIG_CFG80211 is not set
-# CONFIG_WIRELESS_EXT is not set
-# CONFIG_MAC80211 is not set
-# CONFIG_IEEE80211 is not set
-# CONFIG_RFKILL is not set
-# CONFIG_NET_9P is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_FW_LOADER is not set
-# CONFIG_DEBUG_DRIVER is not set
-# CONFIG_DEBUG_DEVRES is not set
-# CONFIG_SYS_HYPERVISOR is not set
-# CONFIG_CONNECTOR is not set
-# CONFIG_MTD is not set
-# CONFIG_PARPORT is not set
-CONFIG_BLK_DEV=y
-# CONFIG_BLK_DEV_COW_COMMON is not set
-CONFIG_BLK_DEV_LOOP=y
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_BLK_DEV_RAM_SIZE=4096
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-# CONFIG_CDROM_PKTCDVD is not set
-# CONFIG_ATA_OVER_ETH is not set
-CONFIG_MISC_DEVICES=y
-# CONFIG_EEPROM_93CX6 is not set
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_RAID_ATTRS is not set
-CONFIG_SCSI=y
-CONFIG_SCSI_DMA=y
-# CONFIG_SCSI_TGT is not set
-# CONFIG_SCSI_NETLINK is not set
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
-CONFIG_BLK_DEV_SD=y
-# CONFIG_CHR_DEV_ST is not set
-# CONFIG_CHR_DEV_OSST is not set
-# CONFIG_BLK_DEV_SR is not set
-# CONFIG_CHR_DEV_SG is not set
-# CONFIG_CHR_DEV_SCH is not set
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
-CONFIG_SCSI_MULTI_LUN=y
-# CONFIG_SCSI_CONSTANTS is not set
-# CONFIG_SCSI_LOGGING is not set
-# CONFIG_SCSI_SCAN_ASYNC is not set
-
-#
-# SCSI Transports
-#
-CONFIG_SCSI_SPI_ATTRS=y
-# CONFIG_SCSI_FC_ATTRS is not set
-# CONFIG_SCSI_ISCSI_ATTRS is not set
-# CONFIG_SCSI_SAS_LIBSAS is not set
-# CONFIG_SCSI_SRP_ATTRS is not set
-CONFIG_SCSI_LOWLEVEL=y
-# CONFIG_ISCSI_TCP is not set
-# CONFIG_SCSI_DEBUG is not set
-# CONFIG_ATA is not set
-# CONFIG_MD is not set
-CONFIG_NETDEVICES=y
-# CONFIG_NETDEVICES_MULTIQUEUE is not set
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_MACVLAN is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-# CONFIG_VETH is not set
-# CONFIG_PHYLIB is not set
-CONFIG_NET_ETHERNET=y
-# CONFIG_MII is not set
-# CONFIG_STNIC is not set
-# CONFIG_SMC91X is not set
-# CONFIG_SMC911X is not set
-# CONFIG_IBM_NEW_EMAC_ZMII is not set
-# CONFIG_IBM_NEW_EMAC_RGMII is not set
-# CONFIG_IBM_NEW_EMAC_TAH is not set
-# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
-# CONFIG_B44 is not set
-CONFIG_NETDEV_1000=y
-CONFIG_NETDEV_10000=y
-
-#
-# Wireless LAN
-#
-# CONFIG_WLAN_PRE80211 is not set
-# CONFIG_WLAN_80211 is not set
-# CONFIG_WAN is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_ISDN is not set
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-# CONFIG_INPUT_POLLDEV is not set
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TABLET is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-# CONFIG_SERIO is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-# CONFIG_VT_HW_CONSOLE_BINDING is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_SH_SCI=y
-CONFIG_SERIAL_SH_SCI_NR_UARTS=2
-CONFIG_SERIAL_SH_SCI_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-# CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
-# CONFIG_R3964 is not set
-# CONFIG_RAW_DRIVER is not set
-# CONFIG_TCG_TPM is not set
-# CONFIG_I2C is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-# CONFIG_W1 is not set
-# CONFIG_POWER_SUPPLY is not set
-CONFIG_HWMON=y
-# CONFIG_HWMON_VID is not set
-# CONFIG_SENSORS_F71805F is not set
-# CONFIG_SENSORS_F71882FG is not set
-# CONFIG_SENSORS_IT87 is not set
-# CONFIG_SENSORS_PC87360 is not set
-# CONFIG_SENSORS_PC87427 is not set
-# CONFIG_SENSORS_SMSC47M1 is not set
-# CONFIG_SENSORS_SMSC47B397 is not set
-# CONFIG_SENSORS_VT1211 is not set
-# CONFIG_SENSORS_W83627HF is not set
-# CONFIG_SENSORS_W83627EHF is not set
-# CONFIG_HWMON_DEBUG_CHIP is not set
-CONFIG_WATCHDOG=y
-# CONFIG_WATCHDOG_NOWAYOUT is not set
-
-#
-# Watchdog Device Drivers
-#
-# CONFIG_SOFT_WATCHDOG is not set
-
-#
-# Sonics Silicon Backplane
-#
-CONFIG_SSB_POSSIBLE=y
-# CONFIG_SSB is not set
-
-#
-# Multifunction device drivers
-#
-# CONFIG_MFD_SM501 is not set
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-# CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
-
-#
-# Graphics support
-#
-# CONFIG_VGASTATE is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=y
-CONFIG_FB=y
-CONFIG_FIRMWARE_EDID=y
-# CONFIG_FB_DDC is not set
-# CONFIG_FB_CFB_FILLRECT is not set
-# CONFIG_FB_CFB_COPYAREA is not set
-# CONFIG_FB_CFB_IMAGEBLIT is not set
-# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
-# CONFIG_FB_SYS_FILLRECT is not set
-# CONFIG_FB_SYS_COPYAREA is not set
-# CONFIG_FB_SYS_IMAGEBLIT is not set
-# CONFIG_FB_SYS_FOPS is not set
-CONFIG_FB_DEFERRED_IO=y
-# CONFIG_FB_SVGALIB is not set
-# CONFIG_FB_MACMODES is not set
-# CONFIG_FB_BACKLIGHT is not set
-CONFIG_FB_MODE_HELPERS=y
-# CONFIG_FB_TILEBLITTING is not set
-
-#
-# Frame buffer hardware drivers
-#
-# CONFIG_FB_S1D13XXX is not set
-# CONFIG_FB_VIRTUAL is not set
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Display device support
-#
-# CONFIG_DISPLAY_SUPPORT is not set
-
-#
-# Console display driver support
-#
-CONFIG_DUMMY_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE=y
-# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
-# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
-CONFIG_FONTS=y
-# CONFIG_FONT_8x8 is not set
-CONFIG_FONT_8x16=y
-# CONFIG_FONT_6x11 is not set
-# CONFIG_FONT_7x14 is not set
-# CONFIG_FONT_PEARL_8x8 is not set
-# CONFIG_FONT_ACORN_8x8 is not set
-# CONFIG_FONT_MINI_4x6 is not set
-# CONFIG_FONT_SUN8x16 is not set
-# CONFIG_FONT_SUN12x22 is not set
-# CONFIG_FONT_10x18 is not set
-CONFIG_LOGO=y
-# CONFIG_LOGO_LINUX_MONO is not set
-# CONFIG_LOGO_LINUX_VGA16 is not set
-# CONFIG_LOGO_LINUX_CLUT224 is not set
-# CONFIG_LOGO_SUPERH_MONO is not set
-# CONFIG_LOGO_SUPERH_VGA16 is not set
-CONFIG_LOGO_SUPERH_CLUT224=y
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-CONFIG_HID_SUPPORT=y
-CONFIG_HID=y
-# CONFIG_HID_DEBUG is not set
-# CONFIG_HIDRAW is not set
-CONFIG_USB_SUPPORT=y
-CONFIG_USB_ARCH_HAS_HCD=y
-# CONFIG_USB_ARCH_HAS_OHCI is not set
-# CONFIG_USB_ARCH_HAS_EHCI is not set
-# CONFIG_USB is not set
-
-#
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
-#
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-# CONFIG_MMC is not set
-# CONFIG_NEW_LEDS is not set
-# CONFIG_RTC_CLASS is not set
-
-#
-# Userspace I/O
-#
-# CONFIG_UIO is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
-# CONFIG_EXT4DEV_FS is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-CONFIG_FS_MBCACHE=y
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_GFS2_FS is not set
-# CONFIG_OCFS2_FS is not set
-CONFIG_MINIX_FS=y
-CONFIG_ROMFS_FS=y
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-# CONFIG_FUSE_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-# CONFIG_TMPFS_POSIX_ACL is not set
-CONFIG_HUGETLBFS=y
-CONFIG_HUGETLB_PAGE=y
-# CONFIG_CONFIGFS_FS is not set
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-CONFIG_NETWORK_FILESYSTEMS=y
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V3_ACL is not set
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
-# CONFIG_NFSD is not set
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=y
-# CONFIG_SUNRPC_BIND34 is not set
-# CONFIG_RPCSEC_GSS_KRB5 is not set
-# CONFIG_RPCSEC_GSS_SPKM3 is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-CONFIG_PARTITION_ADVANCED=y
-# CONFIG_ACORN_PARTITION is not set
-# CONFIG_OSF_PARTITION is not set
-# CONFIG_AMIGA_PARTITION is not set
-# CONFIG_ATARI_PARTITION is not set
-# CONFIG_MAC_PARTITION is not set
-CONFIG_MSDOS_PARTITION=y
-# CONFIG_BSD_DISKLABEL is not set
-# CONFIG_MINIX_SUBPARTITION is not set
-# CONFIG_SOLARIS_X86_PARTITION is not set
-# CONFIG_UNIXWARE_DISKLABEL is not set
-# CONFIG_LDM_PARTITION is not set
-# CONFIG_SGI_PARTITION is not set
-# CONFIG_ULTRIX_PARTITION is not set
-# CONFIG_SUN_PARTITION is not set
-# CONFIG_KARMA_PARTITION is not set
-# CONFIG_EFI_PARTITION is not set
-# CONFIG_SYSV68_PARTITION is not set
-# CONFIG_NLS is not set
-# CONFIG_DLM is not set
-CONFIG_INSTRUMENTATION=y
-# CONFIG_PROFILING is not set
-# CONFIG_MARKERS is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_WARN_DEPRECATED=y
-CONFIG_ENABLE_MUST_CHECK=y
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_UNUSED_SYMBOLS is not set
-CONFIG_DEBUG_FS=y
-# CONFIG_HEADERS_CHECK is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_SHIRQ is not set
-CONFIG_DETECT_SOFTLOCKUP=y
-CONFIG_SCHED_DEBUG=y
-CONFIG_SCHEDSTATS=y
-# CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
-# CONFIG_DEBUG_RT_MUTEXES is not set
-# CONFIG_RT_MUTEX_TESTER is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_MUTEXES is not set
-# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
-# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-# CONFIG_DEBUG_KOBJECT is not set
-CONFIG_DEBUG_BUGVERBOSE=y
-# CONFIG_DEBUG_INFO is not set
-# CONFIG_DEBUG_VM is not set
-# CONFIG_DEBUG_LIST is not set
-# CONFIG_DEBUG_SG is not set
-CONFIG_FRAME_POINTER=y
-CONFIG_FORCED_INLINING=y
-# CONFIG_BOOT_PRINTK_DELAY is not set
-# CONFIG_FAULT_INJECTION is not set
-# CONFIG_SAMPLES is not set
-# CONFIG_EARLY_PRINTK is not set
-CONFIG_SH64_PROC_TLB=y
-CONFIG_SH64_PROC_ASIDS=y
-CONFIG_SH64_SR_WATCH=y
-# CONFIG_POOR_MANS_STRACE is not set
-# CONFIG_SH_NO_BSS_INIT is not set
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-# CONFIG_SECURITY_FILE_CAPABILITIES is not set
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC16 is not set
-# CONFIG_CRC_ITU_T is not set
-CONFIG_CRC32=y
-# CONFIG_CRC7 is not set
-# CONFIG_LIBCRC32C is not set
-CONFIG_PLIST=y
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
-CONFIG_HAS_DMA=y
diff --git a/arch/sh/configs/r7785rp_defconfig b/arch/sh/configs/r7785rp_defconfig
index 2e43a2a971a9..0dc1ce7b9349 100644
--- a/arch/sh/configs/r7785rp_defconfig
+++ b/arch/sh/configs/r7785rp_defconfig
@@ -1,9 +1,10 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24-rc2
-# Tue Nov 13 20:34:57 2007
+# Linux kernel version: 2.6.24-rc3
+# Fri Nov 23 14:03:57 2007
 #
 CONFIG_SUPERH=y
+CONFIG_SUPERH32=y
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
 CONFIG_GENERIC_BUG=y
 CONFIG_GENERIC_FIND_NEXT_BIT=y
@@ -39,6 +40,7 @@ CONFIG_BSD_PROCESS_ACCT=y
 # CONFIG_BSD_PROCESS_ACCT_V3 is not set
 # CONFIG_TASKSTATS is not set
 # CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
 # CONFIG_AUDIT is not set
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
@@ -130,6 +132,8 @@ CONFIG_CPU_SUBTYPE_SH7785=y
 # CONFIG_CPU_SUBTYPE_SHX3 is not set
 # CONFIG_CPU_SUBTYPE_SH7343 is not set
 # CONFIG_CPU_SUBTYPE_SH7722 is not set
+# CONFIG_CPU_SUBTYPE_SH5_101 is not set
+# CONFIG_CPU_SUBTYPE_SH5_103 is not set
 
 #
 # Memory management options
@@ -139,7 +143,8 @@ CONFIG_MMU=y
 CONFIG_PAGE_OFFSET=0x80000000
 CONFIG_MEMORY_START=0x08000000
 CONFIG_MEMORY_SIZE=0x08000000
-# CONFIG_32BIT is not set
+CONFIG_29BIT=y
+# CONFIG_PMB is not set
 # CONFIG_X2TLB is not set
 CONFIG_VSYSCALL=y
 # CONFIG_NUMA is not set
@@ -158,6 +163,7 @@ CONFIG_PAGE_SIZE_4KB=y
 CONFIG_HUGETLB_PAGE_SIZE_1MB=y
 # CONFIG_HUGETLB_PAGE_SIZE_4MB is not set
 # CONFIG_HUGETLB_PAGE_SIZE_64MB is not set
+# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
 CONFIG_SELECT_MEMORY_MODEL=y
 # CONFIG_FLATMEM_MANUAL is not set
 # CONFIG_DISCONTIGMEM_MANUAL is not set
@@ -701,6 +707,7 @@ CONFIG_DEVPORT=y
 # CONFIG_POWER_SUPPLY is not set
 CONFIG_HWMON=y
 # CONFIG_HWMON_VID is not set
+# CONFIG_SENSORS_I5K_AMB is not set
 # CONFIG_SENSORS_F71805F is not set
 # CONFIG_SENSORS_F71882FG is not set
 # CONFIG_SENSORS_IT87 is not set
diff --git a/arch/sh/configs/sim_defconfig b/arch/sh/configs/sim_defconfig
deleted file mode 100644
index 18476cc522c3..000000000000
--- a/arch/sh/configs/sim_defconfig
+++ /dev/null
@@ -1,558 +0,0 @@
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24-rc1
-# Fri Nov  2 14:36:08 2007
-#
-CONFIG_SUPERH=y
-CONFIG_SUPERH64=y
-CONFIG_MMU=y
-CONFIG_QUICKLIST=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_ARCH_NO_VIRT_TO_BUS=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# General setup
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_LOCK_KERNEL=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-CONFIG_SWAP=y
-# CONFIG_SYSVIPC is not set
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_USER_NS is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_CGROUPS is not set
-CONFIG_FAIR_GROUP_SCHED=y
-CONFIG_FAIR_USER_SCHED=y
-# CONFIG_FAIR_CGROUP_SCHED is not set
-CONFIG_SYSFS_DEPRECATED=y
-# CONFIG_RELAY is not set
-# CONFIG_BLK_DEV_INITRD is not set
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_SYSCTL=y
-# CONFIG_EMBEDDED is not set
-CONFIG_UID16=y
-CONFIG_SYSCTL_SYSCALL=y
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_ALL is not set
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_ANON_INODES=y
-CONFIG_EPOLL=y
-CONFIG_SIGNALFD=y
-CONFIG_EVENTFD=y
-CONFIG_SHMEM=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
-# CONFIG_SLOB is not set
-CONFIG_RT_MUTEXES=y
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-# CONFIG_MODULES is not set
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-# CONFIG_BLK_DEV_BSG is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_DEFAULT_AS is not set
-# CONFIG_DEFAULT_DEADLINE is not set
-CONFIG_DEFAULT_CFQ=y
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="cfq"
-
-#
-# System type
-#
-CONFIG_SH_SIMULATOR=y
-# CONFIG_SH_CAYMAN is not set
-# CONFIG_SH_HARP is not set
-CONFIG_CPU_SH5=y
-CONFIG_CPU_SUBTYPE_SH5_101=y
-# CONFIG_CPU_SUBTYPE_SH5_103 is not set
-CONFIG_LITTLE_ENDIAN=y
-# CONFIG_BIG_ENDIAN is not set
-CONFIG_SH_FPU=y
-# CONFIG_SH64_FPU_DENORM_FLUSH is not set
-CONFIG_SH64_PGTABLE_2_LEVEL=y
-# CONFIG_SH64_PGTABLE_3_LEVEL is not set
-CONFIG_HUGETLB_PAGE_SIZE_64K=y
-# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
-# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
-CONFIG_SH64_USER_MISALIGNED_FIXUP=y
-
-#
-# Memory options
-#
-CONFIG_CACHED_MEMORY_OFFSET=0x20000000
-CONFIG_MEMORY_START=0x80000000
-CONFIG_MEMORY_SIZE_IN_MB=128
-
-#
-# Cache options
-#
-# CONFIG_DCACHE_WRITE_BACK is not set
-# CONFIG_DCACHE_WRITE_THROUGH is not set
-CONFIG_DCACHE_DISABLED=y
-# CONFIG_ICACHE_DISABLED is not set
-CONFIG_PCIDEVICE_MEMORY_START=C0000000
-CONFIG_DEVICE_MEMORY_START=E0000000
-CONFIG_FLASH_MEMORY_START=0x00000000
-CONFIG_PCI_BLOCK_START=0x40000000
-
-#
-# CPU Subtype specific options
-#
-CONFIG_SH64_ID2815_WORKAROUND=y
-
-#
-# Misc options
-#
-# CONFIG_SH_DMA is not set
-CONFIG_PREEMPT=y
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-# CONFIG_DISCONTIGMEM_MANUAL is not set
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
-# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=0
-CONFIG_NR_QUICK=1
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-# CONFIG_ARCH_SUPPORTS_MSI is not set
-# CONFIG_PCCARD is not set
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Networking
-#
-# CONFIG_NET is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_FW_LOADER is not set
-# CONFIG_DEBUG_DRIVER is not set
-# CONFIG_DEBUG_DEVRES is not set
-# CONFIG_SYS_HYPERVISOR is not set
-# CONFIG_MTD is not set
-# CONFIG_PARPORT is not set
-# CONFIG_BLK_DEV is not set
-# CONFIG_MISC_DEVICES is not set
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_RAID_ATTRS is not set
-CONFIG_SCSI=y
-CONFIG_SCSI_DMA=y
-# CONFIG_SCSI_TGT is not set
-# CONFIG_SCSI_NETLINK is not set
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
-CONFIG_BLK_DEV_SD=y
-# CONFIG_CHR_DEV_ST is not set
-# CONFIG_CHR_DEV_OSST is not set
-# CONFIG_BLK_DEV_SR is not set
-# CONFIG_CHR_DEV_SG is not set
-# CONFIG_CHR_DEV_SCH is not set
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
-CONFIG_SCSI_MULTI_LUN=y
-# CONFIG_SCSI_CONSTANTS is not set
-# CONFIG_SCSI_LOGGING is not set
-# CONFIG_SCSI_SCAN_ASYNC is not set
-
-#
-# SCSI Transports
-#
-CONFIG_SCSI_SPI_ATTRS=y
-# CONFIG_SCSI_FC_ATTRS is not set
-# CONFIG_SCSI_SAS_LIBSAS is not set
-# CONFIG_SCSI_SRP_ATTRS is not set
-CONFIG_SCSI_LOWLEVEL=y
-# CONFIG_SCSI_DEBUG is not set
-# CONFIG_ATA is not set
-# CONFIG_MD is not set
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-# CONFIG_INPUT_POLLDEV is not set
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TABLET is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-# CONFIG_SERIO is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-# CONFIG_VT_HW_CONSOLE_BINDING is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_SH_SCI=y
-CONFIG_SERIAL_SH_SCI_NR_UARTS=2
-CONFIG_SERIAL_SH_SCI_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_UNIX98_PTYS=y
-# CONFIG_LEGACY_PTYS is not set
-# CONFIG_IPMI_HANDLER is not set
-# CONFIG_HW_RANDOM is not set
-# CONFIG_R3964 is not set
-# CONFIG_RAW_DRIVER is not set
-# CONFIG_TCG_TPM is not set
-# CONFIG_I2C is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-# CONFIG_W1 is not set
-# CONFIG_POWER_SUPPLY is not set
-# CONFIG_HWMON is not set
-# CONFIG_WATCHDOG is not set
-
-#
-# Sonics Silicon Backplane
-#
-CONFIG_SSB_POSSIBLE=y
-# CONFIG_SSB is not set
-
-#
-# Multifunction device drivers
-#
-# CONFIG_MFD_SM501 is not set
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-CONFIG_DAB=y
-
-#
-# Graphics support
-#
-# CONFIG_VGASTATE is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=y
-CONFIG_FB=y
-CONFIG_FIRMWARE_EDID=y
-# CONFIG_FB_DDC is not set
-# CONFIG_FB_CFB_FILLRECT is not set
-# CONFIG_FB_CFB_COPYAREA is not set
-# CONFIG_FB_CFB_IMAGEBLIT is not set
-# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
-# CONFIG_FB_SYS_FILLRECT is not set
-# CONFIG_FB_SYS_COPYAREA is not set
-# CONFIG_FB_SYS_IMAGEBLIT is not set
-# CONFIG_FB_SYS_FOPS is not set
-CONFIG_FB_DEFERRED_IO=y
-# CONFIG_FB_SVGALIB is not set
-# CONFIG_FB_MACMODES is not set
-# CONFIG_FB_BACKLIGHT is not set
-CONFIG_FB_MODE_HELPERS=y
-# CONFIG_FB_TILEBLITTING is not set
-
-#
-# Frame buffer hardware drivers
-#
-# CONFIG_FB_S1D13XXX is not set
-# CONFIG_FB_VIRTUAL is not set
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Display device support
-#
-# CONFIG_DISPLAY_SUPPORT is not set
-
-#
-# Console display driver support
-#
-CONFIG_DUMMY_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE=y
-# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
-# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
-CONFIG_FONTS=y
-# CONFIG_FONT_8x8 is not set
-CONFIG_FONT_8x16=y
-# CONFIG_FONT_6x11 is not set
-# CONFIG_FONT_7x14 is not set
-# CONFIG_FONT_PEARL_8x8 is not set
-# CONFIG_FONT_ACORN_8x8 is not set
-# CONFIG_FONT_MINI_4x6 is not set
-# CONFIG_FONT_SUN8x16 is not set
-# CONFIG_FONT_SUN12x22 is not set
-# CONFIG_FONT_10x18 is not set
-CONFIG_LOGO=y
-# CONFIG_LOGO_LINUX_MONO is not set
-# CONFIG_LOGO_LINUX_VGA16 is not set
-# CONFIG_LOGO_LINUX_CLUT224 is not set
-# CONFIG_LOGO_SUPERH_MONO is not set
-# CONFIG_LOGO_SUPERH_VGA16 is not set
-CONFIG_LOGO_SUPERH_CLUT224=y
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-# CONFIG_HID_SUPPORT is not set
-# CONFIG_USB_SUPPORT is not set
-# CONFIG_MMC is not set
-# CONFIG_NEW_LEDS is not set
-# CONFIG_RTC_CLASS is not set
-
-#
-# Userspace I/O
-#
-# CONFIG_UIO is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
-# CONFIG_EXT4DEV_FS is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-CONFIG_FS_MBCACHE=y
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_GFS2_FS is not set
-CONFIG_MINIX_FS=y
-CONFIG_ROMFS_FS=y
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-# CONFIG_FUSE_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-# CONFIG_TMPFS_POSIX_ACL is not set
-CONFIG_HUGETLBFS=y
-CONFIG_HUGETLB_PAGE=y
-# CONFIG_CONFIGFS_FS is not set
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Partition Types
-#
-CONFIG_PARTITION_ADVANCED=y
-# CONFIG_ACORN_PARTITION is not set
-# CONFIG_OSF_PARTITION is not set
-# CONFIG_AMIGA_PARTITION is not set
-# CONFIG_ATARI_PARTITION is not set
-# CONFIG_MAC_PARTITION is not set
-CONFIG_MSDOS_PARTITION=y
-# CONFIG_BSD_DISKLABEL is not set
-# CONFIG_MINIX_SUBPARTITION is not set
-# CONFIG_SOLARIS_X86_PARTITION is not set
-# CONFIG_UNIXWARE_DISKLABEL is not set
-# CONFIG_LDM_PARTITION is not set
-# CONFIG_SGI_PARTITION is not set
-# CONFIG_ULTRIX_PARTITION is not set
-# CONFIG_SUN_PARTITION is not set
-# CONFIG_KARMA_PARTITION is not set
-# CONFIG_EFI_PARTITION is not set
-# CONFIG_SYSV68_PARTITION is not set
-# CONFIG_NLS is not set
-CONFIG_INSTRUMENTATION=y
-CONFIG_PROFILING=y
-# CONFIG_OPROFILE is not set
-# CONFIG_MARKERS is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_WARN_DEPRECATED=y
-CONFIG_ENABLE_MUST_CHECK=y
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_UNUSED_SYMBOLS is not set
-CONFIG_DEBUG_FS=y
-# CONFIG_HEADERS_CHECK is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_SHIRQ is not set
-CONFIG_DETECT_SOFTLOCKUP=y
-CONFIG_SCHED_DEBUG=y
-CONFIG_SCHEDSTATS=y
-# CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
-# CONFIG_DEBUG_RT_MUTEXES is not set
-# CONFIG_RT_MUTEX_TESTER is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_MUTEXES is not set
-# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
-# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-# CONFIG_DEBUG_KOBJECT is not set
-CONFIG_DEBUG_BUGVERBOSE=y
-# CONFIG_DEBUG_INFO is not set
-# CONFIG_DEBUG_VM is not set
-# CONFIG_DEBUG_LIST is not set
-# CONFIG_DEBUG_SG is not set
-CONFIG_FRAME_POINTER=y
-CONFIG_FORCED_INLINING=y
-# CONFIG_BOOT_PRINTK_DELAY is not set
-# CONFIG_FAULT_INJECTION is not set
-# CONFIG_SAMPLES is not set
-# CONFIG_EARLY_PRINTK is not set
-CONFIG_SH64_PROC_TLB=y
-CONFIG_SH64_PROC_ASIDS=y
-CONFIG_SH64_SR_WATCH=y
-# CONFIG_POOR_MANS_STRACE is not set
-CONFIG_SH_NO_BSS_INIT=y
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-# CONFIG_SECURITY_FILE_CAPABILITIES is not set
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC16 is not set
-# CONFIG_CRC_ITU_T is not set
-CONFIG_CRC32=y
-# CONFIG_CRC7 is not set
-# CONFIG_LIBCRC32C is not set
-CONFIG_PLIST=y
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
-CONFIG_HAS_DMA=y
diff --git a/arch/sh/kernel/time_64.c b/arch/sh/kernel/time_64.c
index 4c52feead115..e6f54572cd96 100644
--- a/arch/sh/kernel/time_64.c
+++ b/arch/sh/kernel/time_64.c
@@ -347,14 +347,6 @@ static __init unsigned int get_cpu_hz(void)
 
 	count = ctc_val_init - ctc_val; /* CTC counts down */
 
-#if defined (CONFIG_SH_SIMULATOR)
-	/*
-	 * Let's pretend we are a 5MHz SH-5 to avoid a too
-	 * little timer interval. Also to keep delay
-	 * calibration within a reasonable time.
-	 */
-	return 5000000;
-#else
 	/*
 	 * This really is count by the number of clock cycles
          * by the ratio between a complete R64CNT
diff --git a/arch/sh/mach-harp/Makefile b/arch/sh/mach-harp/Makefile
deleted file mode 100644
index 2f2963fa2131..000000000000
--- a/arch/sh/mach-harp/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-y := setup.o
diff --git a/arch/sh/mach-harp/setup.c b/arch/sh/mach-harp/setup.c
deleted file mode 100644
index 05011cb369bb..000000000000
--- a/arch/sh/mach-harp/setup.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mach-harp/setup.c
- *
- * SH-5 Simulator Platform Support
- *
- * This file handles the architecture-dependent parts of initialization
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- *
- * benedict.gaster@superh.com:	 3rd May 2002
- *    Added support for ramdisk, removing statically linked romfs at the same time. *
- *
- * lethal@linux-sh.org:          15th May 2003
- *    Use the generic procfs cpuinfo interface, just return a valid board name.
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <asm/platform.h>
-#include <asm/irq.h>
-
-/*
- * Platform Dependent Interrupt Priorities.
- */
-
-/* Using defaults defined in irq.h */
-#define	RES NO_PRIORITY		/* Disabled */
-#define IR0 IRL0_PRIORITY	/* IRLs */
-#define IR1 IRL1_PRIORITY
-#define IR2 IRL2_PRIORITY
-#define IR3 IRL3_PRIORITY
-#define PCA INTA_PRIORITY	/* PCI Ints */
-#define PCB INTB_PRIORITY
-#define PCC INTC_PRIORITY
-#define PCD INTD_PRIORITY
-#define SER TOP_PRIORITY
-#define ERR TOP_PRIORITY
-#define PW0 TOP_PRIORITY
-#define PW1 TOP_PRIORITY
-#define PW2 TOP_PRIORITY
-#define PW3 TOP_PRIORITY
-#define DM0 NO_PRIORITY		/* DMA Ints */
-#define DM1 NO_PRIORITY
-#define DM2 NO_PRIORITY
-#define DM3 NO_PRIORITY
-#define DAE NO_PRIORITY
-#define TU0 TIMER_PRIORITY	/* TMU Ints */
-#define TU1 NO_PRIORITY
-#define TU2 NO_PRIORITY
-#define TI2 NO_PRIORITY
-#define ATI NO_PRIORITY		/* RTC Ints */
-#define PRI NO_PRIORITY
-#define CUI RTC_PRIORITY
-#define ERI SCIF_PRIORITY	/* SCIF Ints */
-#define RXI SCIF_PRIORITY
-#define BRI SCIF_PRIORITY
-#define TXI SCIF_PRIORITY
-#define ITI TOP_PRIORITY	/* WDT Ints */
-
-/*
- * Platform dependent structures: maps and parms block.
- */
-struct resource io_resources[] = {
-	/* To be updated with external devices */
-};
-
-struct resource kram_resources[] = {
-	/* These must be last in the array */
-	{ .name = "Kernel code", .start = 0, .end = 0 },
-	/* These must be last in the array */
-	{ .name = "Kernel data", .start = 0, .end = 0 }
-};
-
-struct resource xram_resources[] = {
-	/* To be updated with external devices */
-};
-
-struct resource rom_resources[] = {
-	/* To be updated with external devices */
-};
-
-struct sh64_platform platform_parms = {
-	.readonly_rootfs =	1,
-	.initial_root_dev =	0x0100,
-	.loader_type =		1,
-	.io_res_p =		io_resources,
-	.io_res_count =		ARRAY_SIZE(io_resources),
-	.kram_res_p =		kram_resources,
-	.kram_res_count =	ARRAY_SIZE(kram_resources),
-	.xram_res_p =		xram_resources,
-	.xram_res_count =	ARRAY_SIZE(xram_resources),
-	.rom_res_p =		rom_resources,
-	.rom_res_count =	ARRAY_SIZE(rom_resources),
-};
-
-int platform_int_priority[NR_INTC_IRQS] = {
-	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
-	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
-	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES,	/* IRQ 16-23 */
-	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 24-31 */
-	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI,	/* IRQ 32-39 */
-	RXI, BRI, TXI, RES, RES, RES, RES, RES,	/* IRQ 40-47 */
-	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 48-55 */
-	RES, RES, RES, RES, RES, RES, RES, ITI,	/* IRQ 56-63 */
-};
-
-void __init platform_setup(void)
-{
-	/* Harp platform leaves the decision to head.S, for now */
-	platform_parms.fpu_flags = fpu_in_use;
-}
-
-void __init platform_monitor(void)
-{
-	/* Nothing yet .. */
-}
-
-void __init platform_reserve(void)
-{
-	/* Nothing yet .. */
-}
-
-const char *get_system_type(void)
-{
-	return "ST50 Harp";
-}
diff --git a/arch/sh/mach-sim/Makefile b/arch/sh/mach-sim/Makefile
deleted file mode 100644
index 2f2963fa2131..000000000000
--- a/arch/sh/mach-sim/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-y := setup.o
diff --git a/arch/sh/mach-sim/setup.c b/arch/sh/mach-sim/setup.c
deleted file mode 100644
index e3386ec1ce1f..000000000000
--- a/arch/sh/mach-sim/setup.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mach-sim/setup.c
- *
- * ST50 Simulator Platform Support
- *
- * This file handles the architecture-dependent parts of initialization
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- *
- * lethal@linux-sh.org:          15th May 2003
- *    Use the generic procfs cpuinfo interface, just return a valid board name.
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <asm/platform.h>
-#include <asm/irq.h>
-
-/*
- * Platform Dependent Interrupt Priorities.
- */
-
-/* Using defaults defined in irq.h */
-#define	RES NO_PRIORITY		/* Disabled */
-#define IR0 IRL0_PRIORITY	/* IRLs */
-#define IR1 IRL1_PRIORITY
-#define IR2 IRL2_PRIORITY
-#define IR3 IRL3_PRIORITY
-#define PCA INTA_PRIORITY	/* PCI Ints */
-#define PCB INTB_PRIORITY
-#define PCC INTC_PRIORITY
-#define PCD INTD_PRIORITY
-#define SER TOP_PRIORITY
-#define ERR TOP_PRIORITY
-#define PW0 TOP_PRIORITY
-#define PW1 TOP_PRIORITY
-#define PW2 TOP_PRIORITY
-#define PW3 TOP_PRIORITY
-#define DM0 NO_PRIORITY		/* DMA Ints */
-#define DM1 NO_PRIORITY
-#define DM2 NO_PRIORITY
-#define DM3 NO_PRIORITY
-#define DAE NO_PRIORITY
-#define TU0 TIMER_PRIORITY	/* TMU Ints */
-#define TU1 NO_PRIORITY
-#define TU2 NO_PRIORITY
-#define TI2 NO_PRIORITY
-#define ATI NO_PRIORITY		/* RTC Ints */
-#define PRI NO_PRIORITY
-#define CUI RTC_PRIORITY
-#define ERI SCIF_PRIORITY	/* SCIF Ints */
-#define RXI SCIF_PRIORITY
-#define BRI SCIF_PRIORITY
-#define TXI SCIF_PRIORITY
-#define ITI TOP_PRIORITY	/* WDT Ints */
-
-/*
- * Platform dependent structures: maps and parms block.
- */
-struct resource io_resources[] = {
-	/* Nothing yet .. */
-};
-
-struct resource kram_resources[] = {
-	/* These must be last in the array */
-	{ .name = "Kernel code", .start = 0, .end = 0 },
-	/* These must be last in the array */
-	{ .name = "Kernel data", .start = 0, .end = 0 }
-};
-
-struct resource xram_resources[] = {
-	/* Nothing yet .. */
-};
-
-struct resource rom_resources[] = {
-	/* Nothing yet .. */
-};
-
-struct sh64_platform platform_parms = {
-	.readonly_rootfs =	1,
-	.initial_root_dev =	0x0100,
-	.loader_type =		1,
-	.io_res_p =		io_resources,
-	.io_res_count =		ARRAY_SIZE(io_resources),
-	.kram_res_p =		kram_resources,
-	.kram_res_count =	ARRAY_SIZE(kram_resources),
-	.xram_res_p =		xram_resources,
-	.xram_res_count =	ARRAY_SIZE(xram_resources),
-	.rom_res_p =		rom_resources,
-	.rom_res_count =	ARRAY_SIZE(rom_resources),
-};
-
-int platform_int_priority[NR_IRQS] = {
-	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
-	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
-	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES,	/* IRQ 16-23 */
-	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 24-31 */
-	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI,	/* IRQ 32-39 */
-	RXI, BRI, TXI, RES, RES, RES, RES, RES,	/* IRQ 40-47 */
-	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 48-55 */
-	RES, RES, RES, RES, RES, RES, RES, ITI,	/* IRQ 56-63 */
-};
-
-void __init platform_setup(void)
-{
-	/* Simulator platform leaves the decision to head.S */
-	platform_parms.fpu_flags = fpu_in_use;
-}
-
-void __init platform_monitor(void)
-{
-	/* Nothing yet .. */
-}
-
-void __init platform_reserve(void)
-{
-	/* Nothing yet .. */
-}
-
-const char *get_system_type(void)
-{
-	return "SH-5 Simulator";
-}
-- 
cgit v1.2.3-59-g8ed1b


From 03713bd226caece8e089490a47f093f5193e5e96 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 23 Nov 2007 14:23:50 +0900
Subject: sh: Move mach-cayman in with the rest of the boards.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Makefile               |   5 +-
 arch/sh/boards/cayman/Makefile |   5 ++
 arch/sh/boards/cayman/irq.c    | 197 +++++++++++++++++++++++++++++++++++++++++
 arch/sh/boards/cayman/led.c    |  51 +++++++++++
 arch/sh/boards/cayman/setup.c  | 187 ++++++++++++++++++++++++++++++++++++++
 arch/sh/kernel/time_64.c       |   1 -
 arch/sh/mach-cayman/Makefile   |   5 --
 arch/sh/mach-cayman/irq.c      | 197 -----------------------------------------
 arch/sh/mach-cayman/led.c      |  51 -----------
 arch/sh/mach-cayman/setup.c    | 187 --------------------------------------
 arch/sh/tools/mach-types       |   1 +
 11 files changed, 442 insertions(+), 445 deletions(-)
 create mode 100644 arch/sh/boards/cayman/Makefile
 create mode 100644 arch/sh/boards/cayman/irq.c
 create mode 100644 arch/sh/boards/cayman/led.c
 create mode 100644 arch/sh/boards/cayman/setup.c
 delete mode 100644 arch/sh/mach-cayman/Makefile
 delete mode 100644 arch/sh/mach-cayman/irq.c
 delete mode 100644 arch/sh/mach-cayman/led.c
 delete mode 100644 arch/sh/mach-cayman/setup.c

(limited to 'arch')

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 6eb3ee2f3fd9..f7cbc13fd2a0 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -131,6 +131,7 @@ machdir-$(CONFIG_SH_7206_SOLUTION_ENGINE)	+= se/7206
 machdir-$(CONFIG_SH_7619_SOLUTION_ENGINE)	+= se/7619
 machdir-$(CONFIG_SH_LBOX_RE2)			+= lboxre2
 machdir-$(CONFIG_SH_MAGIC_PANEL_R2)		+= magicpanelr2
+machdir-$(CONFIG_SH_CAYMAN)			+= cayman
 
 incdir-y	:= $(notdir $(machdir-y))
 
@@ -139,10 +140,6 @@ core-y	+= $(addprefix arch/sh/boards/, \
 	     $(filter-out ., $(patsubst %,%/,$(machdir-y))))
 endif
 
-# SH-5 mach types
-# XXX.. to be reconciled with machdir-y later.
-core-$(CONFIG_SH_CAYMAN)	+= arch/sh/mach-cayman/
-
 # Companion chips
 core-$(CONFIG_HD6446X_SERIES)	+= arch/sh/cchips/hd6446x/
 core-$(CONFIG_MFD_SM501)	+= arch/sh/cchips/voyagergx/
diff --git a/arch/sh/boards/cayman/Makefile b/arch/sh/boards/cayman/Makefile
new file mode 100644
index 000000000000..489a8f867368
--- /dev/null
+++ b/arch/sh/boards/cayman/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the Hitachi Cayman specific parts of the kernel
+#
+obj-y := setup.o irq.o
+obj-$(CONFIG_HEARTBEAT)	+= led.o
diff --git a/arch/sh/boards/cayman/irq.c b/arch/sh/boards/cayman/irq.c
new file mode 100644
index 000000000000..30ec7bebfaf1
--- /dev/null
+++ b/arch/sh/boards/cayman/irq.c
@@ -0,0 +1,197 @@
+/*
+ * arch/sh/mach-cayman/irq.c - SH-5 Cayman Interrupt Support
+ *
+ * This file handles the board specific parts of the Cayman interrupt system
+ *
+ * Copyright (C) 2002 Stuart Menefy
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/signal.h>
+#include <asm/cpu/irq.h>
+#include <asm/page.h>
+
+/* Setup for the SMSC FDC37C935 / LAN91C100FD */
+#define SMSC_IRQ         IRQ_IRL1
+
+/* Setup for PCI Bus 2, which transmits interrupts via the EPLD */
+#define PCI2_IRQ         IRQ_IRL3
+
+unsigned long epld_virt;
+
+#define EPLD_BASE        0x04002000
+#define EPLD_STATUS_BASE (epld_virt + 0x10)
+#define EPLD_MASK_BASE   (epld_virt + 0x20)
+
+/* Note the SMSC SuperIO chip and SMSC LAN chip interrupts are all muxed onto
+   the same SH-5 interrupt */
+
+static irqreturn_t cayman_interrupt_smsc(int irq, void *dev_id)
+{
+        printk(KERN_INFO "CAYMAN: spurious SMSC interrupt\n");
+	return IRQ_NONE;
+}
+
+static irqreturn_t cayman_interrupt_pci2(int irq, void *dev_id)
+{
+        printk(KERN_INFO "CAYMAN: spurious PCI interrupt, IRQ %d\n", irq);
+	return IRQ_NONE;
+}
+
+static struct irqaction cayman_action_smsc = {
+	.name		= "Cayman SMSC Mux",
+	.handler	= cayman_interrupt_smsc,
+	.flags		= IRQF_DISABLED,
+};
+
+static struct irqaction cayman_action_pci2 = {
+	.name		= "Cayman PCI2 Mux",
+	.handler	= cayman_interrupt_pci2,
+	.flags		= IRQF_DISABLED,
+};
+
+static void enable_cayman_irq(unsigned int irq)
+{
+	unsigned long flags;
+	unsigned long mask;
+	unsigned int reg;
+	unsigned char bit;
+
+	irq -= START_EXT_IRQS;
+	reg = EPLD_MASK_BASE + ((irq / 8) << 2);
+	bit = 1<<(irq % 8);
+	local_irq_save(flags);
+	mask = ctrl_inl(reg);
+	mask |= bit;
+	ctrl_outl(mask, reg);
+	local_irq_restore(flags);
+}
+
+void disable_cayman_irq(unsigned int irq)
+{
+	unsigned long flags;
+	unsigned long mask;
+	unsigned int reg;
+	unsigned char bit;
+
+	irq -= START_EXT_IRQS;
+	reg = EPLD_MASK_BASE + ((irq / 8) << 2);
+	bit = 1<<(irq % 8);
+	local_irq_save(flags);
+	mask = ctrl_inl(reg);
+	mask &= ~bit;
+	ctrl_outl(mask, reg);
+	local_irq_restore(flags);
+}
+
+static void ack_cayman_irq(unsigned int irq)
+{
+	disable_cayman_irq(irq);
+}
+
+static void end_cayman_irq(unsigned int irq)
+{
+	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
+		enable_cayman_irq(irq);
+}
+
+static unsigned int startup_cayman_irq(unsigned int irq)
+{
+	enable_cayman_irq(irq);
+	return 0; /* never anything pending */
+}
+
+static void shutdown_cayman_irq(unsigned int irq)
+{
+	disable_cayman_irq(irq);
+}
+
+struct hw_interrupt_type cayman_irq_type = {
+	.typename	= "Cayman-IRQ",
+	.startup	= startup_cayman_irq,
+	.shutdown	= shutdown_cayman_irq,
+	.enable		= enable_cayman_irq,
+	.disable	= disable_cayman_irq,
+	.ack		= ack_cayman_irq,
+	.end		= end_cayman_irq,
+};
+
+int cayman_irq_demux(int evt)
+{
+	int irq = intc_evt_to_irq[evt];
+
+	if (irq == SMSC_IRQ) {
+		unsigned long status;
+		int i;
+
+		status = ctrl_inl(EPLD_STATUS_BASE) &
+			 ctrl_inl(EPLD_MASK_BASE) & 0xff;
+		if (status == 0) {
+			irq = -1;
+		} else {
+			for (i=0; i<8; i++) {
+				if (status & (1<<i))
+					break;
+			}
+			irq = START_EXT_IRQS + i;
+		}
+	}
+
+	if (irq == PCI2_IRQ) {
+		unsigned long status;
+		int i;
+
+		status = ctrl_inl(EPLD_STATUS_BASE + 3 * sizeof(u32)) &
+			 ctrl_inl(EPLD_MASK_BASE + 3 * sizeof(u32)) & 0xff;
+		if (status == 0) {
+			irq = -1;
+		} else {
+			for (i=0; i<8; i++) {
+				if (status & (1<<i))
+					break;
+			}
+			irq = START_EXT_IRQS + (3 * 8) + i;
+		}
+	}
+
+	return irq;
+}
+
+#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL)
+int cayman_irq_describe(char* p, int irq)
+{
+	if (irq < NR_INTC_IRQS) {
+		return intc_irq_describe(p, irq);
+	} else if (irq < NR_INTC_IRQS + 8) {
+		return sprintf(p, "(SMSC %d)", irq - NR_INTC_IRQS);
+	} else if ((irq >= NR_INTC_IRQS + 24) && (irq < NR_INTC_IRQS + 32)) {
+		return sprintf(p, "(PCI2 %d)", irq - (NR_INTC_IRQS + 24));
+	}
+
+	return 0;
+}
+#endif
+
+void init_cayman_irq(void)
+{
+	int i;
+
+	epld_virt = onchip_remap(EPLD_BASE, 1024, "EPLD");
+	if (!epld_virt) {
+		printk(KERN_ERR "Cayman IRQ: Unable to remap EPLD\n");
+		return;
+	}
+
+	for (i=0; i<NR_EXT_IRQS; i++) {
+		irq_desc[START_EXT_IRQS + i].chip = &cayman_irq_type;
+	}
+
+	/* Setup the SMSC interrupt */
+	setup_irq(SMSC_IRQ, &cayman_action_smsc);
+	setup_irq(PCI2_IRQ, &cayman_action_pci2);
+}
diff --git a/arch/sh/boards/cayman/led.c b/arch/sh/boards/cayman/led.c
new file mode 100644
index 000000000000..b4e122fd9502
--- /dev/null
+++ b/arch/sh/boards/cayman/led.c
@@ -0,0 +1,51 @@
+/*
+ * arch/sh64/mach-cayman/led.c
+ *
+ * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ * Flash the LEDs
+ */
+#include <asm/io.h>
+
+/*
+** It is supposed these functions to be used for a low level
+** debugging (via Cayman LEDs), hence to be available as soon
+** as possible.
+** Unfortunately Cayman LEDs relies on Cayman EPLD to be mapped
+** (this happen when IRQ are initialized... quite late).
+** These triky dependencies should be removed. Temporary, it
+** may be enough to NOP until EPLD is mapped.
+*/
+
+extern unsigned long epld_virt;
+
+#define LED_ADDR      (epld_virt + 0x008)
+#define HDSP2534_ADDR (epld_virt + 0x100)
+
+void mach_led(int position, int value)
+{
+	if (!epld_virt)
+		return;
+
+	if (value)
+		ctrl_outl(0, LED_ADDR);
+	else
+		ctrl_outl(1, LED_ADDR);
+
+}
+
+void mach_alphanum(int position, unsigned char value)
+{
+	if (!epld_virt)
+		return;
+
+	ctrl_outb(value, HDSP2534_ADDR + 0xe0 + (position << 2));
+}
+
+void mach_alphanum_brightness(int setting)
+{
+	ctrl_outb(setting & 7, HDSP2534_ADDR + 0xc0);
+}
diff --git a/arch/sh/boards/cayman/setup.c b/arch/sh/boards/cayman/setup.c
new file mode 100644
index 000000000000..8c9fa472d8f5
--- /dev/null
+++ b/arch/sh/boards/cayman/setup.c
@@ -0,0 +1,187 @@
+/*
+ * arch/sh/mach-cayman/setup.c
+ *
+ * SH5 Cayman support
+ *
+ * Copyright (C) 2002  David J. Mckay & Benedict Gaster
+ * Copyright (C) 2003 - 2007  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <asm/cpu/irq.h>
+
+/*
+ * Platform Dependent Interrupt Priorities.
+ */
+
+/* Using defaults defined in irq.h */
+#define	RES NO_PRIORITY		/* Disabled */
+#define IR0 IRL0_PRIORITY	/* IRLs */
+#define IR1 IRL1_PRIORITY
+#define IR2 IRL2_PRIORITY
+#define IR3 IRL3_PRIORITY
+#define PCA INTA_PRIORITY	/* PCI Ints */
+#define PCB INTB_PRIORITY
+#define PCC INTC_PRIORITY
+#define PCD INTD_PRIORITY
+#define SER TOP_PRIORITY
+#define ERR TOP_PRIORITY
+#define PW0 TOP_PRIORITY
+#define PW1 TOP_PRIORITY
+#define PW2 TOP_PRIORITY
+#define PW3 TOP_PRIORITY
+#define DM0 NO_PRIORITY		/* DMA Ints */
+#define DM1 NO_PRIORITY
+#define DM2 NO_PRIORITY
+#define DM3 NO_PRIORITY
+#define DAE NO_PRIORITY
+#define TU0 TIMER_PRIORITY	/* TMU Ints */
+#define TU1 NO_PRIORITY
+#define TU2 NO_PRIORITY
+#define TI2 NO_PRIORITY
+#define ATI NO_PRIORITY		/* RTC Ints */
+#define PRI NO_PRIORITY
+#define CUI RTC_PRIORITY
+#define ERI SCIF_PRIORITY	/* SCIF Ints */
+#define RXI SCIF_PRIORITY
+#define BRI SCIF_PRIORITY
+#define TXI SCIF_PRIORITY
+#define ITI TOP_PRIORITY	/* WDT Ints */
+
+/* Setup for the SMSC FDC37C935 */
+#define SMSC_SUPERIO_BASE	0x04000000
+#define SMSC_CONFIG_PORT_ADDR	0x3f0
+#define SMSC_INDEX_PORT_ADDR	SMSC_CONFIG_PORT_ADDR
+#define SMSC_DATA_PORT_ADDR	0x3f1
+
+#define SMSC_ENTER_CONFIG_KEY	0x55
+#define SMSC_EXIT_CONFIG_KEY	0xaa
+
+#define SMCS_LOGICAL_DEV_INDEX	0x07
+#define SMSC_DEVICE_ID_INDEX	0x20
+#define SMSC_DEVICE_REV_INDEX	0x21
+#define SMSC_ACTIVATE_INDEX	0x30
+#define SMSC_PRIMARY_BASE_INDEX  0x60
+#define SMSC_SECONDARY_BASE_INDEX 0x62
+#define SMSC_PRIMARY_INT_INDEX	0x70
+#define SMSC_SECONDARY_INT_INDEX 0x72
+
+#define SMSC_IDE1_DEVICE	1
+#define SMSC_KEYBOARD_DEVICE	7
+#define SMSC_CONFIG_REGISTERS	8
+
+#define SMSC_SUPERIO_READ_INDEXED(index) ({ \
+	outb((index), SMSC_INDEX_PORT_ADDR); \
+	inb(SMSC_DATA_PORT_ADDR); })
+#define SMSC_SUPERIO_WRITE_INDEXED(val, index) ({ \
+	outb((index), SMSC_INDEX_PORT_ADDR); \
+	outb((val),   SMSC_DATA_PORT_ADDR); })
+
+#define IDE1_PRIMARY_BASE	0x01f0
+#define IDE1_SECONDARY_BASE	0x03f6
+
+unsigned long smsc_superio_virt;
+
+int platform_int_priority[NR_INTC_IRQS] = {
+	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
+	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
+	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES,	/* IRQ 16-23 */
+	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 24-31 */
+	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI,	/* IRQ 32-39 */
+	RXI, BRI, TXI, RES, RES, RES, RES, RES,	/* IRQ 40-47 */
+	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 48-55 */
+	RES, RES, RES, RES, RES, RES, RES, ITI,	/* IRQ 56-63 */
+};
+
+static int __init smsc_superio_setup(void)
+{
+	unsigned char devid, devrev;
+
+	smsc_superio_virt = onchip_remap(SMSC_SUPERIO_BASE, 1024, "SMSC SuperIO");
+	if (!smsc_superio_virt) {
+		panic("Unable to remap SMSC SuperIO\n");
+	}
+
+	/* Initially the chip is in run state */
+	/* Put it into configuration state */
+	outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
+	outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
+
+	/* Read device ID info */
+	devid = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_ID_INDEX);
+	devrev = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_REV_INDEX);
+	printk("SMSC SuperIO devid %02x rev %02x\n", devid, devrev);
+
+	/* Select the keyboard device */
+	SMSC_SUPERIO_WRITE_INDEXED(SMSC_KEYBOARD_DEVICE, SMCS_LOGICAL_DEV_INDEX);
+
+	/* enable it */
+	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
+
+	/* Select the interrupts */
+	/* On a PC keyboard is IRQ1, mouse is IRQ12 */
+	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_PRIMARY_INT_INDEX);
+	SMSC_SUPERIO_WRITE_INDEXED(12, SMSC_SECONDARY_INT_INDEX);
+
+#ifdef CONFIG_IDE
+	/*
+	 * Only IDE1 exists on the Cayman
+	 */
+
+	/* Power it on */
+	SMSC_SUPERIO_WRITE_INDEXED(1 << SMSC_IDE1_DEVICE, 0x22);
+
+	SMSC_SUPERIO_WRITE_INDEXED(SMSC_IDE1_DEVICE, SMCS_LOGICAL_DEV_INDEX);
+	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
+
+	SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE >> 8,
+				   SMSC_PRIMARY_BASE_INDEX + 0);
+	SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE & 0xff,
+				   SMSC_PRIMARY_BASE_INDEX + 1);
+
+	SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE >> 8,
+				   SMSC_SECONDARY_BASE_INDEX + 0);
+	SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE & 0xff,
+				   SMSC_SECONDARY_BASE_INDEX + 1);
+
+	SMSC_SUPERIO_WRITE_INDEXED(14, SMSC_PRIMARY_INT_INDEX);
+
+	SMSC_SUPERIO_WRITE_INDEXED(SMSC_CONFIG_REGISTERS,
+				   SMCS_LOGICAL_DEV_INDEX);
+
+	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc2); /* GP42 = nIDE1_OE */
+	SMSC_SUPERIO_WRITE_INDEXED(0x01, 0xc5); /* GP45 = IDE1_IRQ */
+	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc6); /* GP46 = nIOROP */
+	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc7); /* GP47 = nIOWOP */
+#endif
+
+	/* Exit the configuration state */
+	outb(SMSC_EXIT_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
+
+	return 0;
+}
+__initcall(smsc_superio_setup);
+
+static void __iomem *cayman_ioport_map(unsigned long port, unsigned int len)
+{
+	if (port < 0x400) {
+		extern unsigned long smsc_superio_virt;
+		return (void __iomem *)((port << 2) | smsc_superio_virt);
+	}
+
+	return (void __iomem *)port;
+}
+
+extern void init_cayman_irq(void);
+
+static struct sh_machine_vector mv_cayman __initmv = {
+	.mv_name		= "Hitachi Cayman",
+	.mv_nr_irqs		= 64,
+	.mv_ioport_map		= cayman_ioport_map,
+	.mv_init_irq		= init_cayman_irq,
+};
diff --git a/arch/sh/kernel/time_64.c b/arch/sh/kernel/time_64.c
index e6f54572cd96..81003af8115a 100644
--- a/arch/sh/kernel/time_64.c
+++ b/arch/sh/kernel/time_64.c
@@ -353,7 +353,6 @@ static __init unsigned int get_cpu_hz(void)
          * wrap-around (128) and CUI interrupt being raised (64).
 	 */
 	return count*2;
-#endif
 }
 
 static irqreturn_t sh64_rtc_interrupt(int irq, void *dev_id)
diff --git a/arch/sh/mach-cayman/Makefile b/arch/sh/mach-cayman/Makefile
deleted file mode 100644
index 489a8f867368..000000000000
--- a/arch/sh/mach-cayman/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the Hitachi Cayman specific parts of the kernel
-#
-obj-y := setup.o irq.o
-obj-$(CONFIG_HEARTBEAT)	+= led.o
diff --git a/arch/sh/mach-cayman/irq.c b/arch/sh/mach-cayman/irq.c
deleted file mode 100644
index 30ec7bebfaf1..000000000000
--- a/arch/sh/mach-cayman/irq.c
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * arch/sh/mach-cayman/irq.c - SH-5 Cayman Interrupt Support
- *
- * This file handles the board specific parts of the Cayman interrupt system
- *
- * Copyright (C) 2002 Stuart Menefy
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/signal.h>
-#include <asm/cpu/irq.h>
-#include <asm/page.h>
-
-/* Setup for the SMSC FDC37C935 / LAN91C100FD */
-#define SMSC_IRQ         IRQ_IRL1
-
-/* Setup for PCI Bus 2, which transmits interrupts via the EPLD */
-#define PCI2_IRQ         IRQ_IRL3
-
-unsigned long epld_virt;
-
-#define EPLD_BASE        0x04002000
-#define EPLD_STATUS_BASE (epld_virt + 0x10)
-#define EPLD_MASK_BASE   (epld_virt + 0x20)
-
-/* Note the SMSC SuperIO chip and SMSC LAN chip interrupts are all muxed onto
-   the same SH-5 interrupt */
-
-static irqreturn_t cayman_interrupt_smsc(int irq, void *dev_id)
-{
-        printk(KERN_INFO "CAYMAN: spurious SMSC interrupt\n");
-	return IRQ_NONE;
-}
-
-static irqreturn_t cayman_interrupt_pci2(int irq, void *dev_id)
-{
-        printk(KERN_INFO "CAYMAN: spurious PCI interrupt, IRQ %d\n", irq);
-	return IRQ_NONE;
-}
-
-static struct irqaction cayman_action_smsc = {
-	.name		= "Cayman SMSC Mux",
-	.handler	= cayman_interrupt_smsc,
-	.flags		= IRQF_DISABLED,
-};
-
-static struct irqaction cayman_action_pci2 = {
-	.name		= "Cayman PCI2 Mux",
-	.handler	= cayman_interrupt_pci2,
-	.flags		= IRQF_DISABLED,
-};
-
-static void enable_cayman_irq(unsigned int irq)
-{
-	unsigned long flags;
-	unsigned long mask;
-	unsigned int reg;
-	unsigned char bit;
-
-	irq -= START_EXT_IRQS;
-	reg = EPLD_MASK_BASE + ((irq / 8) << 2);
-	bit = 1<<(irq % 8);
-	local_irq_save(flags);
-	mask = ctrl_inl(reg);
-	mask |= bit;
-	ctrl_outl(mask, reg);
-	local_irq_restore(flags);
-}
-
-void disable_cayman_irq(unsigned int irq)
-{
-	unsigned long flags;
-	unsigned long mask;
-	unsigned int reg;
-	unsigned char bit;
-
-	irq -= START_EXT_IRQS;
-	reg = EPLD_MASK_BASE + ((irq / 8) << 2);
-	bit = 1<<(irq % 8);
-	local_irq_save(flags);
-	mask = ctrl_inl(reg);
-	mask &= ~bit;
-	ctrl_outl(mask, reg);
-	local_irq_restore(flags);
-}
-
-static void ack_cayman_irq(unsigned int irq)
-{
-	disable_cayman_irq(irq);
-}
-
-static void end_cayman_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_cayman_irq(irq);
-}
-
-static unsigned int startup_cayman_irq(unsigned int irq)
-{
-	enable_cayman_irq(irq);
-	return 0; /* never anything pending */
-}
-
-static void shutdown_cayman_irq(unsigned int irq)
-{
-	disable_cayman_irq(irq);
-}
-
-struct hw_interrupt_type cayman_irq_type = {
-	.typename	= "Cayman-IRQ",
-	.startup	= startup_cayman_irq,
-	.shutdown	= shutdown_cayman_irq,
-	.enable		= enable_cayman_irq,
-	.disable	= disable_cayman_irq,
-	.ack		= ack_cayman_irq,
-	.end		= end_cayman_irq,
-};
-
-int cayman_irq_demux(int evt)
-{
-	int irq = intc_evt_to_irq[evt];
-
-	if (irq == SMSC_IRQ) {
-		unsigned long status;
-		int i;
-
-		status = ctrl_inl(EPLD_STATUS_BASE) &
-			 ctrl_inl(EPLD_MASK_BASE) & 0xff;
-		if (status == 0) {
-			irq = -1;
-		} else {
-			for (i=0; i<8; i++) {
-				if (status & (1<<i))
-					break;
-			}
-			irq = START_EXT_IRQS + i;
-		}
-	}
-
-	if (irq == PCI2_IRQ) {
-		unsigned long status;
-		int i;
-
-		status = ctrl_inl(EPLD_STATUS_BASE + 3 * sizeof(u32)) &
-			 ctrl_inl(EPLD_MASK_BASE + 3 * sizeof(u32)) & 0xff;
-		if (status == 0) {
-			irq = -1;
-		} else {
-			for (i=0; i<8; i++) {
-				if (status & (1<<i))
-					break;
-			}
-			irq = START_EXT_IRQS + (3 * 8) + i;
-		}
-	}
-
-	return irq;
-}
-
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL)
-int cayman_irq_describe(char* p, int irq)
-{
-	if (irq < NR_INTC_IRQS) {
-		return intc_irq_describe(p, irq);
-	} else if (irq < NR_INTC_IRQS + 8) {
-		return sprintf(p, "(SMSC %d)", irq - NR_INTC_IRQS);
-	} else if ((irq >= NR_INTC_IRQS + 24) && (irq < NR_INTC_IRQS + 32)) {
-		return sprintf(p, "(PCI2 %d)", irq - (NR_INTC_IRQS + 24));
-	}
-
-	return 0;
-}
-#endif
-
-void init_cayman_irq(void)
-{
-	int i;
-
-	epld_virt = onchip_remap(EPLD_BASE, 1024, "EPLD");
-	if (!epld_virt) {
-		printk(KERN_ERR "Cayman IRQ: Unable to remap EPLD\n");
-		return;
-	}
-
-	for (i=0; i<NR_EXT_IRQS; i++) {
-		irq_desc[START_EXT_IRQS + i].chip = &cayman_irq_type;
-	}
-
-	/* Setup the SMSC interrupt */
-	setup_irq(SMSC_IRQ, &cayman_action_smsc);
-	setup_irq(PCI2_IRQ, &cayman_action_pci2);
-}
diff --git a/arch/sh/mach-cayman/led.c b/arch/sh/mach-cayman/led.c
deleted file mode 100644
index b4e122fd9502..000000000000
--- a/arch/sh/mach-cayman/led.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * arch/sh64/mach-cayman/led.c
- *
- * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.
- *
- * Flash the LEDs
- */
-#include <asm/io.h>
-
-/*
-** It is supposed these functions to be used for a low level
-** debugging (via Cayman LEDs), hence to be available as soon
-** as possible.
-** Unfortunately Cayman LEDs relies on Cayman EPLD to be mapped
-** (this happen when IRQ are initialized... quite late).
-** These triky dependencies should be removed. Temporary, it
-** may be enough to NOP until EPLD is mapped.
-*/
-
-extern unsigned long epld_virt;
-
-#define LED_ADDR      (epld_virt + 0x008)
-#define HDSP2534_ADDR (epld_virt + 0x100)
-
-void mach_led(int position, int value)
-{
-	if (!epld_virt)
-		return;
-
-	if (value)
-		ctrl_outl(0, LED_ADDR);
-	else
-		ctrl_outl(1, LED_ADDR);
-
-}
-
-void mach_alphanum(int position, unsigned char value)
-{
-	if (!epld_virt)
-		return;
-
-	ctrl_outb(value, HDSP2534_ADDR + 0xe0 + (position << 2));
-}
-
-void mach_alphanum_brightness(int setting)
-{
-	ctrl_outb(setting & 7, HDSP2534_ADDR + 0xc0);
-}
diff --git a/arch/sh/mach-cayman/setup.c b/arch/sh/mach-cayman/setup.c
deleted file mode 100644
index 8c9fa472d8f5..000000000000
--- a/arch/sh/mach-cayman/setup.c
+++ /dev/null
@@ -1,187 +0,0 @@
-/*
- * arch/sh/mach-cayman/setup.c
- *
- * SH5 Cayman support
- *
- * Copyright (C) 2002  David J. Mckay & Benedict Gaster
- * Copyright (C) 2003 - 2007  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <asm/cpu/irq.h>
-
-/*
- * Platform Dependent Interrupt Priorities.
- */
-
-/* Using defaults defined in irq.h */
-#define	RES NO_PRIORITY		/* Disabled */
-#define IR0 IRL0_PRIORITY	/* IRLs */
-#define IR1 IRL1_PRIORITY
-#define IR2 IRL2_PRIORITY
-#define IR3 IRL3_PRIORITY
-#define PCA INTA_PRIORITY	/* PCI Ints */
-#define PCB INTB_PRIORITY
-#define PCC INTC_PRIORITY
-#define PCD INTD_PRIORITY
-#define SER TOP_PRIORITY
-#define ERR TOP_PRIORITY
-#define PW0 TOP_PRIORITY
-#define PW1 TOP_PRIORITY
-#define PW2 TOP_PRIORITY
-#define PW3 TOP_PRIORITY
-#define DM0 NO_PRIORITY		/* DMA Ints */
-#define DM1 NO_PRIORITY
-#define DM2 NO_PRIORITY
-#define DM3 NO_PRIORITY
-#define DAE NO_PRIORITY
-#define TU0 TIMER_PRIORITY	/* TMU Ints */
-#define TU1 NO_PRIORITY
-#define TU2 NO_PRIORITY
-#define TI2 NO_PRIORITY
-#define ATI NO_PRIORITY		/* RTC Ints */
-#define PRI NO_PRIORITY
-#define CUI RTC_PRIORITY
-#define ERI SCIF_PRIORITY	/* SCIF Ints */
-#define RXI SCIF_PRIORITY
-#define BRI SCIF_PRIORITY
-#define TXI SCIF_PRIORITY
-#define ITI TOP_PRIORITY	/* WDT Ints */
-
-/* Setup for the SMSC FDC37C935 */
-#define SMSC_SUPERIO_BASE	0x04000000
-#define SMSC_CONFIG_PORT_ADDR	0x3f0
-#define SMSC_INDEX_PORT_ADDR	SMSC_CONFIG_PORT_ADDR
-#define SMSC_DATA_PORT_ADDR	0x3f1
-
-#define SMSC_ENTER_CONFIG_KEY	0x55
-#define SMSC_EXIT_CONFIG_KEY	0xaa
-
-#define SMCS_LOGICAL_DEV_INDEX	0x07
-#define SMSC_DEVICE_ID_INDEX	0x20
-#define SMSC_DEVICE_REV_INDEX	0x21
-#define SMSC_ACTIVATE_INDEX	0x30
-#define SMSC_PRIMARY_BASE_INDEX  0x60
-#define SMSC_SECONDARY_BASE_INDEX 0x62
-#define SMSC_PRIMARY_INT_INDEX	0x70
-#define SMSC_SECONDARY_INT_INDEX 0x72
-
-#define SMSC_IDE1_DEVICE	1
-#define SMSC_KEYBOARD_DEVICE	7
-#define SMSC_CONFIG_REGISTERS	8
-
-#define SMSC_SUPERIO_READ_INDEXED(index) ({ \
-	outb((index), SMSC_INDEX_PORT_ADDR); \
-	inb(SMSC_DATA_PORT_ADDR); })
-#define SMSC_SUPERIO_WRITE_INDEXED(val, index) ({ \
-	outb((index), SMSC_INDEX_PORT_ADDR); \
-	outb((val),   SMSC_DATA_PORT_ADDR); })
-
-#define IDE1_PRIMARY_BASE	0x01f0
-#define IDE1_SECONDARY_BASE	0x03f6
-
-unsigned long smsc_superio_virt;
-
-int platform_int_priority[NR_INTC_IRQS] = {
-	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
-	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
-	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES,	/* IRQ 16-23 */
-	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 24-31 */
-	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI,	/* IRQ 32-39 */
-	RXI, BRI, TXI, RES, RES, RES, RES, RES,	/* IRQ 40-47 */
-	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 48-55 */
-	RES, RES, RES, RES, RES, RES, RES, ITI,	/* IRQ 56-63 */
-};
-
-static int __init smsc_superio_setup(void)
-{
-	unsigned char devid, devrev;
-
-	smsc_superio_virt = onchip_remap(SMSC_SUPERIO_BASE, 1024, "SMSC SuperIO");
-	if (!smsc_superio_virt) {
-		panic("Unable to remap SMSC SuperIO\n");
-	}
-
-	/* Initially the chip is in run state */
-	/* Put it into configuration state */
-	outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
-	outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
-
-	/* Read device ID info */
-	devid = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_ID_INDEX);
-	devrev = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_REV_INDEX);
-	printk("SMSC SuperIO devid %02x rev %02x\n", devid, devrev);
-
-	/* Select the keyboard device */
-	SMSC_SUPERIO_WRITE_INDEXED(SMSC_KEYBOARD_DEVICE, SMCS_LOGICAL_DEV_INDEX);
-
-	/* enable it */
-	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
-
-	/* Select the interrupts */
-	/* On a PC keyboard is IRQ1, mouse is IRQ12 */
-	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_PRIMARY_INT_INDEX);
-	SMSC_SUPERIO_WRITE_INDEXED(12, SMSC_SECONDARY_INT_INDEX);
-
-#ifdef CONFIG_IDE
-	/*
-	 * Only IDE1 exists on the Cayman
-	 */
-
-	/* Power it on */
-	SMSC_SUPERIO_WRITE_INDEXED(1 << SMSC_IDE1_DEVICE, 0x22);
-
-	SMSC_SUPERIO_WRITE_INDEXED(SMSC_IDE1_DEVICE, SMCS_LOGICAL_DEV_INDEX);
-	SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
-
-	SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE >> 8,
-				   SMSC_PRIMARY_BASE_INDEX + 0);
-	SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE & 0xff,
-				   SMSC_PRIMARY_BASE_INDEX + 1);
-
-	SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE >> 8,
-				   SMSC_SECONDARY_BASE_INDEX + 0);
-	SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE & 0xff,
-				   SMSC_SECONDARY_BASE_INDEX + 1);
-
-	SMSC_SUPERIO_WRITE_INDEXED(14, SMSC_PRIMARY_INT_INDEX);
-
-	SMSC_SUPERIO_WRITE_INDEXED(SMSC_CONFIG_REGISTERS,
-				   SMCS_LOGICAL_DEV_INDEX);
-
-	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc2); /* GP42 = nIDE1_OE */
-	SMSC_SUPERIO_WRITE_INDEXED(0x01, 0xc5); /* GP45 = IDE1_IRQ */
-	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc6); /* GP46 = nIOROP */
-	SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc7); /* GP47 = nIOWOP */
-#endif
-
-	/* Exit the configuration state */
-	outb(SMSC_EXIT_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
-
-	return 0;
-}
-__initcall(smsc_superio_setup);
-
-static void __iomem *cayman_ioport_map(unsigned long port, unsigned int len)
-{
-	if (port < 0x400) {
-		extern unsigned long smsc_superio_virt;
-		return (void __iomem *)((port << 2) | smsc_superio_virt);
-	}
-
-	return (void __iomem *)port;
-}
-
-extern void init_cayman_irq(void);
-
-static struct sh_machine_vector mv_cayman __initmv = {
-	.mv_name		= "Hitachi Cayman",
-	.mv_nr_irqs		= 64,
-	.mv_ioport_map		= cayman_ioport_map,
-	.mv_init_irq		= init_cayman_irq,
-};
diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types
index ff071693325c..af4b7aa9a6b2 100644
--- a/arch/sh/tools/mach-types
+++ b/arch/sh/tools/mach-types
@@ -45,3 +45,4 @@ X3PROTO			SH_X3PROTO
 MAGICPANELR2		SH_MAGIC_PANEL_R2
 R2D_PLUS		RTS7751R2D_PLUS
 R2D_1			RTS7751R2D_1
+CAYMAN			SH_CAYMAN
-- 
cgit v1.2.3-59-g8ed1b


From 1322b9def91ab8e9e673b58a64e13d6effaaa652 Mon Sep 17 00:00:00 2001
From: Yuichi Nakamura <ynakam@hitachisoft.jp>
Date: Sat, 10 Nov 2007 19:21:34 +0900
Subject: sh: syscall audit support.

Support syscall auditing..

Signed-off-by: Yuichi Nakamura <ynakam@hitachisoft.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/entry-common.S |  8 ++++++--
 arch/sh/kernel/ptrace_32.c    | 21 +++++++++++++++++----
 include/asm-sh/thread_info.h  |  2 ++
 init/Kconfig                  |  2 +-
 4 files changed, 26 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S
index e0317ed080c3..397ac71d97f1 100644
--- a/arch/sh/kernel/entry-common.S
+++ b/arch/sh/kernel/entry-common.S
@@ -224,7 +224,7 @@ work_resched:
 syscall_exit_work:
 	! r0: current_thread_info->flags
 	! r8: current_thread_info
-	tst	#_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP, r0
+	tst	#_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_SYSCALL_AUDIT, r0
 	bt/s	work_pending
 	 tst	#_TIF_NEED_RESCHED, r0
 #ifdef CONFIG_TRACE_IRQFLAGS
@@ -234,6 +234,8 @@ syscall_exit_work:
 #endif
 	sti
 	! XXX setup arguments...
+	mov	r15, r4
+	mov	#1, r5
 	mov.l	4f, r0			! do_syscall_trace
 	jsr	@r0
 	 nop
@@ -244,6 +246,8 @@ syscall_exit_work:
 syscall_trace_entry:
 	!                     	Yes it is traced.
 	! XXX setup arguments...
+	mov     r15, r4
+	mov     #0, r5
 	mov.l	4f, r11		! Call do_syscall_trace which notifies
 	jsr	@r11	    	! superior (will chomp R[0-7])
 	 nop
@@ -366,7 +370,7 @@ ENTRY(system_call)
 	!
 	get_current_thread_info r8, r10
 	mov.l	@(TI_FLAGS,r8), r8
-	mov	#_TIF_SYSCALL_TRACE, r10
+	mov	#(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT), r10
 	tst	r10, r8
 	bf	syscall_trace_entry
 	!
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index ac725f0aeb72..ce0664a58b49 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -6,7 +6,7 @@
  *	edited by Linus Torvalds
  *
  * SuperH version:   Copyright (C) 1999, 2000  Kaz Kojima & Niibe Yutaka
- *
+ * Audit support: Yuichi Nakamura <ynakam@hitachisoft.jp>
  */
 #include <linux/kernel.h>
 #include <linux/sched.h>
@@ -19,6 +19,7 @@
 #include <linux/security.h>
 #include <linux/signal.h>
 #include <linux/io.h>
+#include <linux/audit.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
@@ -248,15 +249,20 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	return ret;
 }
 
-asmlinkage void do_syscall_trace(void)
+asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit)
 {
 	struct task_struct *tsk = current;
 
+	if (unlikely(current->audit_context) && entryexit)
+		audit_syscall_exit(AUDITSC_RESULT(regs->regs[0]),
+				   regs->regs[0]);
+
 	if (!test_thread_flag(TIF_SYSCALL_TRACE) &&
 	    !test_thread_flag(TIF_SINGLESTEP))
-		return;
+		goto out;
 	if (!(tsk->ptrace & PT_PTRACED))
-		return;
+		goto out;
+
 	/* the 0x80 provides a way for the tracing parent to distinguish
 	   between a syscall stop and SIGTRAP delivery */
 	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) &&
@@ -271,4 +277,11 @@ asmlinkage void do_syscall_trace(void)
 		send_sig(tsk->exit_code, tsk, 1);
 		tsk->exit_code = 0;
 	}
+
+out:
+	if (unlikely(current->audit_context) && !entryexit)
+		audit_syscall_entry(AUDIT_ARCH_SH, regs->regs[3],
+				    regs->regs[4], regs->regs[5],
+				    regs->regs[6], regs->regs[7]);
+
 }
diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h
index d49ee9d868e5..c6577d3dc46d 100644
--- a/include/asm-sh/thread_info.h
+++ b/include/asm-sh/thread_info.h
@@ -113,6 +113,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_NEED_RESCHED	2	/* rescheduling necessary */
 #define TIF_RESTORE_SIGMASK	3	/* restore signal mask in do_signal() */
 #define TIF_SINGLESTEP		4	/* singlestepping active */
+#define TIF_SYSCALL_AUDIT	5
 #define TIF_USEDFPU		16	/* FPU was used by this task this quantum (SMP) */
 #define TIF_POLLING_NRFLAG	17	/* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_MEMDIE		18
@@ -123,6 +124,7 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
 #define _TIF_RESTORE_SIGMASK	(1<<TIF_RESTORE_SIGMASK)
 #define _TIF_SINGLESTEP		(1<<TIF_SINGLESTEP)
+#define _TIF_SYSCALL_AUDIT		(1<<TIF_SYSCALL_AUDIT)
 #define _TIF_USEDFPU		(1<<TIF_USEDFPU)
 #define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
 #define _TIF_FREEZE		(1<<TIF_FREEZE)
diff --git a/init/Kconfig b/init/Kconfig
index 0eda68f0ad54..288444b4cd8a 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -238,7 +238,7 @@ config AUDIT
 
 config AUDITSYSCALL
 	bool "Enable system-call auditing support"
-	depends on AUDIT && (X86 || PPC || PPC64 || S390 || IA64 || UML || SPARC64)
+	depends on AUDIT && (X86 || PPC || PPC64 || S390 || IA64 || UML || SPARC64|| SUPERH)
 	default y if SECURITY_SELINUX
 	help
 	  Enable low-overhead system-call auditing infrastructure that
-- 
cgit v1.2.3-59-g8ed1b


From 6d01f51086cf6c475470cdae67d2f45e5fb57833 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 26 Nov 2007 18:17:21 +0900
Subject: sh: Add SH7203 CPU support.

This adds support for the SH7203 (SH-2A) CPU.

Signed-off-by: Kieran Bingham <kbingham@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig                        |   8 +-
 arch/sh/Kconfig.debug                  |   1 +
 arch/sh/kernel/cpu/sh2a/Makefile       |   1 +
 arch/sh/kernel/cpu/sh2a/clock-sh7203.c |  89 +++++++++++
 arch/sh/kernel/cpu/sh2a/probe.c        |  19 ++-
 arch/sh/kernel/cpu/sh2a/setup-sh7203.c | 281 +++++++++++++++++++++++++++++++++
 arch/sh/kernel/setup.c                 |   1 +
 arch/sh/kernel/timers/timer-cmt.c      |   2 +-
 drivers/serial/sh-sci.h                |   6 +-
 include/asm-sh/bugs.h                  |   2 +-
 include/asm-sh/cpu-sh2a/freq.h         |   2 -
 include/asm-sh/processor.h             |   2 +-
 12 files changed, 399 insertions(+), 15 deletions(-)
 create mode 100644 arch/sh/kernel/cpu/sh2a/clock-sh7203.c
 create mode 100644 arch/sh/kernel/cpu/sh2a/setup-sh7203.c

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index d99ba375cc87..d8f62b842656 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -158,6 +158,10 @@ config CPU_SUBTYPE_SH7619
 
 # SH-2A Processor Support
 
+config CPU_SUBTYPE_SH7203
+	bool "Support SH7203 processor"
+	select CPU_SH2A
+
 config CPU_SUBTYPE_SH7206
 	bool "Support SH7206 processor"
 	select CPU_SH2A
@@ -556,7 +560,7 @@ config SH_PCLK_FREQ
 	default "32000000" if CPU_SUBTYPE_SH7722
 	default "33333333" if CPU_SUBTYPE_SH7770 || \
 			      CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
-			      CPU_SUBTYPE_SH7206
+			      CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206
 	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
 	default "66000000" if CPU_SUBTYPE_SH4_202
 	default "50000000"
@@ -567,7 +571,7 @@ config SH_PCLK_FREQ
 
 config SH_CLK_MD
 	int "CPU Mode Pin Setting"
-	depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
+	depends on CPU_SH2
 	default 6 if CPU_SUBTYPE_SH7206
 	default 5 if CPU_SUBTYPE_SH7619
 	default 0
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 89bc174f25c7..f7e362c9d76d 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -32,6 +32,7 @@ config EARLY_SCIF_CONSOLE_PORT
 	depends on EARLY_SCIF_CONSOLE
 	default "0xffe00000" if CPU_SUBTYPE_SH7780
 	default "0xffea0000" if CPU_SUBTYPE_SH7785
+	default "0xfffe8000" if CPU_SUBTYPE_SH7203
 	default "0xfffe9800" if CPU_SUBTYPE_SH7206
 	default "0xf8420000" if CPU_SUBTYPE_SH7619
 	default "0xa4400000" if CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7705
diff --git a/arch/sh/kernel/cpu/sh2a/Makefile b/arch/sh/kernel/cpu/sh2a/Makefile
index 965fa2572b23..5286eeff1cc3 100644
--- a/arch/sh/kernel/cpu/sh2a/Makefile
+++ b/arch/sh/kernel/cpu/sh2a/Makefile
@@ -7,3 +7,4 @@ obj-y	:= common.o probe.o opcode_helper.o
 common-y	+= $(addprefix ../sh2/, ex.o entry.o)
 
 obj-$(CONFIG_CPU_SUBTYPE_SH7206) += setup-sh7206.o clock-sh7206.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7203) += setup-sh7203.o clock-sh7203.o
diff --git a/arch/sh/kernel/cpu/sh2a/clock-sh7203.c b/arch/sh/kernel/cpu/sh2a/clock-sh7203.c
new file mode 100644
index 000000000000..3feb95a4fcbc
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh2a/clock-sh7203.c
@@ -0,0 +1,89 @@
+/*
+ * arch/sh/kernel/cpu/sh2a/clock-sh7203.c
+ *
+ * SH7203 support for the clock framework
+ *
+ *  Copyright (C) 2007 Kieran Bingham (MPC-Data Ltd)
+ *
+ * Based on clock-sh7263.c
+ *  Copyright (C) 2006  Yoshinori Sato
+ *
+ * Based on clock-sh4.c
+ *  Copyright (C) 2005  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <asm/clock.h>
+#include <asm/freq.h>
+#include <asm/io.h>
+
+const static int pll1rate[]={8,12,16,0};
+const static int pfc_divisors[]={1,2,3,4,6,8,12};
+#define ifc_divisors pfc_divisors
+
+#if (CONFIG_SH_CLK_MD == 0)
+#define PLL2 (1)
+#elif (CONFIG_SH_CLK_MD == 1)
+#define PLL2 (2)
+#elif (CONFIG_SH_CLK_MD == 2)
+#define PLL2 (4)
+#elif (CONFIG_SH_CLK_MD == 3)
+#define PLL2 (4)
+#else
+#error "Illegal Clock Mode!"
+#endif
+
+static void master_clk_init(struct clk *clk)
+{
+	clk->rate *= pll1rate[(ctrl_inw(FREQCR) >> 8) & 0x0003] * PLL2 ;
+}
+
+static struct clk_ops sh7203_master_clk_ops = {
+	.init		= master_clk_init,
+};
+
+static void module_clk_recalc(struct clk *clk)
+{
+	int idx = (ctrl_inw(FREQCR) & 0x0007);
+	clk->rate = clk->parent->rate / pfc_divisors[idx];
+}
+
+static struct clk_ops sh7203_module_clk_ops = {
+	.recalc		= module_clk_recalc,
+};
+
+static void bus_clk_recalc(struct clk *clk)
+{
+	int idx = (ctrl_inw(FREQCR) & 0x0007);
+	clk->rate = clk->parent->rate / pfc_divisors[idx-2];
+}
+
+static struct clk_ops sh7203_bus_clk_ops = {
+	.recalc		= bus_clk_recalc,
+};
+
+static void cpu_clk_recalc(struct clk *clk)
+{
+	clk->rate = clk->parent->rate;
+}
+
+static struct clk_ops sh7203_cpu_clk_ops = {
+	.recalc		= cpu_clk_recalc,
+};
+
+static struct clk_ops *sh7203_clk_ops[] = {
+	&sh7203_master_clk_ops,
+	&sh7203_module_clk_ops,
+	&sh7203_bus_clk_ops,
+	&sh7203_cpu_clk_ops,
+};
+
+void __init arch_init_clk_ops(struct clk_ops **ops, int idx)
+{
+	if (idx < ARRAY_SIZE(sh7203_clk_ops))
+		*ops = sh7203_clk_ops[idx];
+}
diff --git a/arch/sh/kernel/cpu/sh2a/probe.c b/arch/sh/kernel/cpu/sh2a/probe.c
index 6d02465704b9..64f10102b720 100644
--- a/arch/sh/kernel/cpu/sh2a/probe.c
+++ b/arch/sh/kernel/cpu/sh2a/probe.c
@@ -3,25 +3,33 @@
  *
  * CPU Subtype Probing for SH-2A.
  *
- * Copyright (C) 2004, 2005 Paul Mundt
+ * Copyright (C) 2004 - 2007  Paul Mundt
  *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
-
 #include <linux/init.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
 int __init detect_cpu_and_cache_system(void)
 {
-	/* Just SH7206 for now .. */
-	boot_cpu_data.type			= CPU_SH7206;
+	/* All SH-2A CPUs have support for 16 and 32-bit opcodes.. */
 	boot_cpu_data.flags			|= CPU_HAS_OP32;
 
+#if defined(CONFIG_CPU_SUBTYPE_SH7203)
+	boot_cpu_data.type			= CPU_SH7203;
+	/* SH7203 has an FPU.. */
+	boot_cpu_data.flags			|= CPU_HAS_FPU;
+#elif defined(CONFIG_CPU_SUBTYPE_SH7206)
+	boot_cpu_data.type			= CPU_SH7206;
+	/* While SH7206 has a DSP.. */
+	boot_cpu_data.flags			|= CPU_HAS_DSP;
+#endif
+
 	boot_cpu_data.dcache.ways		= 4;
-	boot_cpu_data.dcache.way_incr	= (1 << 11);
+	boot_cpu_data.dcache.way_incr		= (1 << 11);
 	boot_cpu_data.dcache.sets		= 128;
 	boot_cpu_data.dcache.entry_shift	= 4;
 	boot_cpu_data.dcache.linesz		= L1_CACHE_BYTES;
@@ -37,4 +45,3 @@ int __init detect_cpu_and_cache_system(void)
 
 	return 0;
 }
-
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
new file mode 100644
index 000000000000..06f27c8b8583
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
@@ -0,0 +1,281 @@
+/*
+ * SH7203 Setup
+ *
+ *  Copyright (C) 2007  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/serial.h>
+#include <asm/sci.h>
+
+enum {
+	UNUSED = 0,
+
+	/* interrupt sources */
+	IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7,
+	PINT0, PINT1, PINT2, PINT3, PINT4, PINT5, PINT6, PINT7,
+	DMAC0_DEI, DMAC0_HEI, DMAC1_DEI, DMAC1_HEI,
+	DMAC2_DEI, DMAC2_HEI, DMAC3_DEI, DMAC3_HEI,
+	DMAC4_DEI, DMAC4_HEI, DMAC5_DEI, DMAC5_HEI,
+	DMAC6_DEI, DMAC6_HEI, DMAC7_DEI, DMAC7_HEI,
+	USB, LCDC, CMT0, CMT1, BSC, WDT,
+	MTU2_TGI0A, MTU2_TGI0B, MTU2_TGI0C, MTU2_TGI0D,
+	MTU2_TCI0V, MTU2_TGI0E, MTU2_TGI0F,
+	MTU2_TGI1A, MTU2_TGI1B, MTU2_TCI1V, MTU2_TCI1U,
+	MTU2_TGI2A, MTU2_TGI2B, MTU2_TCI2V, MTU2_TCI2U,
+	MTU2_TGI3A, MTU2_TGI3B, MTU2_TGI3C, MTU2_TGI3D, MTU2_TCI3V,
+	MTU2_TGI4A, MTU2_TGI4B, MTU2_TGI4C, MTU2_TGI4D, MTU2_TCI4V,
+	ADC_ADI,
+	IIC30_STPI, IIC30_NAKI, IIC30_RXI, IIC30_TXI, IIC30_TEI,
+	IIC31_STPI, IIC31_NAKI, IIC31_RXI, IIC31_TXI, IIC31_TEI,
+	IIC32_STPI, IIC32_NAKI, IIC32_RXI, IIC32_TXI, IIC32_TEI,
+	IIC33_STPI, IIC33_NAKI, IIC33_RXI, IIC33_TXI, IIC33_TEI,
+	SCIF0_BRI, SCIF0_ERI, SCIF0_RXI, SCIF0_TXI,
+	SCIF1_BRI, SCIF1_ERI, SCIF1_RXI, SCIF1_TXI,
+	SCIF2_BRI, SCIF2_ERI, SCIF2_RXI, SCIF2_TXI,
+	SCIF3_BRI, SCIF3_ERI, SCIF3_RXI, SCIF3_TXI,
+	SSU0_SSERI, SSU0_SSRXI, SSU0_SSTXI,
+	SSU1_SSERI, SSU1_SSRXI, SSU1_SSTXI,
+	SSI0_SSII, SSI1_SSII, SSI2_SSII, SSI3_SSII,
+	FLCTL_FLSTEI, FLCTL_FLTENDI, FLCTL_FLTREQ0I, FLCTL_FLTREQ1I,
+	RTC_ARM, RTC_PRD, RTC_CUP,
+	RCAN0_ERS, RCAN0_OVR, RCAN0_RM0, RCAN0_RM1, RCAN0_SLE,
+	RCAN1_ERS, RCAN1_OVR, RCAN1_RM0, RCAN1_RM1, RCAN1_SLE,
+
+	/* interrupt groups */
+	PINT, DMAC0, DMAC1, DMAC2, DMAC3, DMAC4, DMAC5, DMAC6, DMAC7,
+	MTU0_ABCD, MTU0_VEF, MTU1_AB, MTU1_VU, MTU2_AB, MTU2_VU,
+	MTU3_ABCD, MTU4_ABCD,
+	IIC30, IIC31, IIC32, IIC33, SCIF0, SCIF1, SCIF2, SCIF3,
+	SSU0, SSU1, FLCTL, RTC, RCAN0, RCAN1
+};
+
+static struct intc_vect vectors[] __initdata = {
+	INTC_IRQ(IRQ0, 64), INTC_IRQ(IRQ1, 65),
+	INTC_IRQ(IRQ2, 66), INTC_IRQ(IRQ3, 67),
+	INTC_IRQ(IRQ4, 68), INTC_IRQ(IRQ5, 69),
+	INTC_IRQ(IRQ6, 70), INTC_IRQ(IRQ7, 71),
+	INTC_IRQ(PINT0, 80), INTC_IRQ(PINT1, 81),
+	INTC_IRQ(PINT2, 82), INTC_IRQ(PINT3, 83),
+	INTC_IRQ(PINT4, 84), INTC_IRQ(PINT5, 85),
+	INTC_IRQ(PINT6, 86), INTC_IRQ(PINT7, 87),
+	INTC_IRQ(DMAC0_DEI, 108), INTC_IRQ(DMAC0_HEI, 109),
+	INTC_IRQ(DMAC1_DEI, 112), INTC_IRQ(DMAC1_HEI, 113),
+	INTC_IRQ(DMAC2_DEI, 116), INTC_IRQ(DMAC2_HEI, 117),
+	INTC_IRQ(DMAC3_DEI, 120), INTC_IRQ(DMAC3_HEI, 121),
+	INTC_IRQ(DMAC4_DEI, 124), INTC_IRQ(DMAC4_HEI, 125),
+	INTC_IRQ(DMAC5_DEI, 128), INTC_IRQ(DMAC5_HEI, 129),
+	INTC_IRQ(DMAC6_DEI, 132), INTC_IRQ(DMAC6_HEI, 133),
+	INTC_IRQ(DMAC7_DEI, 136), INTC_IRQ(DMAC7_HEI, 137),
+	INTC_IRQ(USB, 140), INTC_IRQ(LCDC, 141),
+	INTC_IRQ(CMT0, 142), INTC_IRQ(CMT1, 143),
+	INTC_IRQ(BSC, 144), INTC_IRQ(WDT, 145),
+	INTC_IRQ(MTU2_TGI0A, 146), INTC_IRQ(MTU2_TGI0B, 147),
+	INTC_IRQ(MTU2_TGI0C, 148), INTC_IRQ(MTU2_TGI0D, 149),
+	INTC_IRQ(MTU2_TCI0V, 150),
+	INTC_IRQ(MTU2_TGI0E, 151), INTC_IRQ(MTU2_TGI0F, 152),
+	INTC_IRQ(MTU2_TGI1A, 153), INTC_IRQ(MTU2_TGI1B, 154),
+	INTC_IRQ(MTU2_TCI1V, 155), INTC_IRQ(MTU2_TCI1U, 156),
+	INTC_IRQ(MTU2_TGI2A, 157), INTC_IRQ(MTU2_TGI2B, 158),
+	INTC_IRQ(MTU2_TCI2V, 159), INTC_IRQ(MTU2_TCI2U, 160),
+	INTC_IRQ(MTU2_TGI3A, 161), INTC_IRQ(MTU2_TGI3B, 162),
+	INTC_IRQ(MTU2_TGI3C, 163), INTC_IRQ(MTU2_TGI3D, 164),
+	INTC_IRQ(MTU2_TCI3V, 165),
+	INTC_IRQ(MTU2_TGI4A, 166), INTC_IRQ(MTU2_TGI4B, 167),
+	INTC_IRQ(MTU2_TGI4C, 168), INTC_IRQ(MTU2_TGI4D, 169),
+	INTC_IRQ(MTU2_TCI4V, 170),
+	INTC_IRQ(ADC_ADI, 171),
+	INTC_IRQ(IIC30_STPI, 172), INTC_IRQ(IIC30_NAKI, 173),
+	INTC_IRQ(IIC30_RXI, 174), INTC_IRQ(IIC30_TXI, 175),
+	INTC_IRQ(IIC30_TEI, 176),
+	INTC_IRQ(IIC31_STPI, 177), INTC_IRQ(IIC31_NAKI, 178),
+	INTC_IRQ(IIC31_RXI, 179), INTC_IRQ(IIC31_TXI, 180),
+	INTC_IRQ(IIC31_TEI, 181),
+	INTC_IRQ(IIC32_STPI, 182), INTC_IRQ(IIC32_NAKI, 183),
+	INTC_IRQ(IIC32_RXI, 184), INTC_IRQ(IIC32_TXI, 185),
+	INTC_IRQ(IIC32_TEI, 186),
+	INTC_IRQ(IIC33_STPI, 187), INTC_IRQ(IIC33_NAKI, 188),
+	INTC_IRQ(IIC33_RXI, 189), INTC_IRQ(IIC33_TXI, 190),
+	INTC_IRQ(IIC33_TEI, 191),
+	INTC_IRQ(SCIF0_BRI, 192), INTC_IRQ(SCIF0_ERI, 193),
+	INTC_IRQ(SCIF0_RXI, 194), INTC_IRQ(SCIF0_TXI, 195),
+	INTC_IRQ(SCIF1_BRI, 196), INTC_IRQ(SCIF1_ERI, 197),
+	INTC_IRQ(SCIF1_RXI, 198), INTC_IRQ(SCIF1_TXI, 199),
+	INTC_IRQ(SCIF2_BRI, 200), INTC_IRQ(SCIF2_ERI, 201),
+	INTC_IRQ(SCIF2_RXI, 202), INTC_IRQ(SCIF2_TXI, 203),
+	INTC_IRQ(SCIF3_BRI, 204), INTC_IRQ(SCIF3_ERI, 205),
+	INTC_IRQ(SCIF3_RXI, 206), INTC_IRQ(SCIF3_TXI, 207),
+	INTC_IRQ(SSU0_SSERI, 208), INTC_IRQ(SSU0_SSRXI, 209),
+	INTC_IRQ(SSU0_SSTXI, 210),
+	INTC_IRQ(SSU1_SSERI, 211), INTC_IRQ(SSU1_SSRXI, 212),
+	INTC_IRQ(SSU1_SSTXI, 213),
+	INTC_IRQ(SSI0_SSII, 214), INTC_IRQ(SSI1_SSII, 215),
+	INTC_IRQ(SSI2_SSII, 216), INTC_IRQ(SSI3_SSII, 217),
+	INTC_IRQ(FLCTL_FLSTEI, 224), INTC_IRQ(FLCTL_FLTENDI, 225),
+	INTC_IRQ(FLCTL_FLTREQ0I, 226), INTC_IRQ(FLCTL_FLTREQ1I, 227),
+	INTC_IRQ(RTC_ARM, 231), INTC_IRQ(RTC_PRD, 232),
+	INTC_IRQ(RTC_CUP, 233),
+	INTC_IRQ(RCAN0_ERS, 234), INTC_IRQ(RCAN0_OVR, 235),
+	INTC_IRQ(RCAN0_RM0, 236), INTC_IRQ(RCAN0_RM1, 237),
+	INTC_IRQ(RCAN0_SLE, 238),
+	INTC_IRQ(RCAN1_ERS, 239), INTC_IRQ(RCAN1_OVR, 240),
+	INTC_IRQ(RCAN1_RM0, 241), INTC_IRQ(RCAN1_RM1, 242),
+	INTC_IRQ(RCAN1_SLE, 243),
+};
+
+static struct intc_group groups[] __initdata = {
+	INTC_GROUP(PINT, PINT0, PINT1, PINT2, PINT3,
+		   PINT4, PINT5, PINT6, PINT7),
+	INTC_GROUP(DMAC0, DMAC0_DEI, DMAC0_HEI),
+	INTC_GROUP(DMAC1, DMAC1_DEI, DMAC1_HEI),
+	INTC_GROUP(DMAC2, DMAC2_DEI, DMAC2_HEI),
+	INTC_GROUP(DMAC3, DMAC3_DEI, DMAC3_HEI),
+	INTC_GROUP(DMAC4, DMAC4_DEI, DMAC4_HEI),
+	INTC_GROUP(DMAC5, DMAC5_DEI, DMAC5_HEI),
+	INTC_GROUP(DMAC6, DMAC6_DEI, DMAC6_HEI),
+	INTC_GROUP(DMAC7, DMAC7_DEI, DMAC7_HEI),
+	INTC_GROUP(MTU0_ABCD, MTU2_TGI0A, MTU2_TGI0B, MTU2_TGI0C, MTU2_TGI0D),
+	INTC_GROUP(MTU0_VEF, MTU2_TCI0V, MTU2_TGI0E, MTU2_TGI0F),
+	INTC_GROUP(MTU1_AB, MTU2_TGI1A, MTU2_TGI1B),
+	INTC_GROUP(MTU1_VU, MTU2_TCI1V, MTU2_TCI1U),
+	INTC_GROUP(MTU2_AB, MTU2_TGI2A, MTU2_TGI2B),
+	INTC_GROUP(MTU2_VU, MTU2_TCI2V, MTU2_TCI2U),
+	INTC_GROUP(MTU3_ABCD, MTU2_TGI3A, MTU2_TGI3B, MTU2_TGI3C, MTU2_TGI3D),
+	INTC_GROUP(MTU4_ABCD, MTU2_TGI4A, MTU2_TGI4B, MTU2_TGI4C, MTU2_TGI4D),
+	INTC_GROUP(IIC30, IIC30_STPI, IIC30_NAKI, IIC30_RXI, IIC30_TXI,
+		   IIC30_TEI),
+	INTC_GROUP(IIC31, IIC31_STPI, IIC31_NAKI, IIC31_RXI, IIC31_TXI,
+		   IIC31_TEI),
+	INTC_GROUP(IIC32, IIC32_STPI, IIC32_NAKI, IIC32_RXI, IIC32_TXI,
+		   IIC32_TEI),
+	INTC_GROUP(IIC33, IIC33_STPI, IIC33_NAKI, IIC33_RXI, IIC33_TXI,
+		   IIC33_TEI),
+	INTC_GROUP(SCIF0, SCIF0_BRI, SCIF0_ERI, SCIF0_RXI, SCIF0_TXI),
+	INTC_GROUP(SCIF1, SCIF1_BRI, SCIF1_ERI, SCIF1_RXI, SCIF1_TXI),
+	INTC_GROUP(SCIF2, SCIF2_BRI, SCIF2_ERI, SCIF2_RXI, SCIF2_TXI),
+	INTC_GROUP(SCIF3, SCIF3_BRI, SCIF3_ERI, SCIF3_RXI, SCIF3_TXI),
+	INTC_GROUP(SSU0, SSU0_SSERI, SSU0_SSRXI, SSU0_SSTXI),
+	INTC_GROUP(SSU1, SSU1_SSERI, SSU1_SSRXI, SSU1_SSTXI),
+	INTC_GROUP(FLCTL, FLCTL_FLSTEI, FLCTL_FLTENDI, FLCTL_FLTREQ0I,
+		   FLCTL_FLTREQ1I),
+	INTC_GROUP(RTC, RTC_ARM, RTC_PRD, RTC_CUP),
+	INTC_GROUP(RCAN0, RCAN0_ERS, RCAN0_OVR, RCAN0_RM0, RCAN0_RM1,
+		   RCAN0_SLE),
+	INTC_GROUP(RCAN1, RCAN1_ERS, RCAN1_OVR, RCAN1_RM0, RCAN1_RM1,
+		   RCAN1_SLE),
+};
+
+static struct intc_prio_reg prio_registers[] __initdata = {
+	{ 0xfffe0818, 0, 16, 4, /* IPR01 */ { IRQ0, IRQ1, IRQ2, IRQ3 } },
+	{ 0xfffe081a, 0, 16, 4, /* IPR02 */ { IRQ4, IRQ5, IRQ6, IRQ7 } },
+	{ 0xfffe0820, 0, 16, 4, /* IPR05 */ { PINT, 0, 0, 0 } },
+	{ 0xfffe0c00, 0, 16, 4, /* IPR06 */ { DMAC0, DMAC1, DMAC2, DMAC3 } },
+	{ 0xfffe0c02, 0, 16, 4, /* IPR07 */ { DMAC4, DMAC5, DMAC6, DMAC7 } },
+	{ 0xfffe0c04, 0, 16, 4, /* IPR08 */ { USB, LCDC, CMT0, CMT1 } },
+	{ 0xfffe0c06, 0, 16, 4, /* IPR09 */ { BSC, WDT, MTU0_ABCD, MTU0_VEF } },
+	{ 0xfffe0c08, 0, 16, 4, /* IPR10 */ { MTU1_AB, MTU1_VU, MTU2_AB,
+					      MTU2_VU } },
+	{ 0xfffe0c0a, 0, 16, 4, /* IPR11 */ { MTU3_ABCD, MTU2_TCI3V, MTU4_ABCD,
+					      MTU2_TCI4V } },
+	{ 0xfffe0c0c, 0, 16, 4, /* IPR12 */ { ADC_ADI, IIC30, IIC31, IIC32 } },
+	{ 0xfffe0c0e, 0, 16, 4, /* IPR13 */ { IIC33, SCIF0, SCIF1, SCIF2 } },
+	{ 0xfffe0c10, 0, 16, 4, /* IPR14 */ { SCIF3, SSU0, SSU1, SSI0_SSII } },
+	{ 0xfffe0c12, 0, 16, 4, /* IPR15 */ { SSI1_SSII, SSI2_SSII,
+					      SSI3_SSII, 0 } },
+	{ 0xfffe0c14, 0, 16, 4, /* IPR16 */ { FLCTL, 0, RTC, RCAN0 } },
+	{ 0xfffe0c16, 0, 16, 4, /* IPR17 */ { RCAN1, 0, 0, 0 } },
+};
+
+static struct intc_mask_reg mask_registers[] __initdata = {
+	{ 0xfffe0808, 0, 16, /* PINTER */
+	  { 0, 0, 0, 0, 0, 0, 0, 0,
+	    PINT7, PINT6, PINT5, PINT4, PINT3, PINT2, PINT1, PINT0 } },
+};
+
+static DECLARE_INTC_DESC(intc_desc, "sh7203", vectors, groups,
+			 NULL, mask_registers, prio_registers, NULL);
+
+static struct plat_sci_port sci_platform_data[] = {
+	{
+		.mapbase	= 0xfffe8000,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.type		= PORT_SCIF,
+		.irqs		=  { 193, 194, 195, 192 },
+	}, {
+		.mapbase	= 0xfffe8800,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.type		= PORT_SCIF,
+		.irqs		=  { 197, 198, 199, 196 },
+	}, {
+		.mapbase	= 0xfffe9000,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.type		= PORT_SCIF,
+		.irqs		=  { 201, 202, 203, 200 },
+	}, {
+		.mapbase	= 0xfffe9800,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.type		= PORT_SCIF,
+		.irqs		=  { 205, 206, 207, 204 },
+	}, {
+		.flags = 0,
+	}
+};
+
+static struct platform_device sci_device = {
+	.name		= "sh-sci",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= sci_platform_data,
+	},
+};
+
+static struct resource rtc_resources[] = {
+	[0] = {
+		.start	= 0xffff2000,
+		.end	= 0xffff2000 + 0x58 - 1,
+		.flags	= IORESOURCE_IO,
+	},
+	[1] = {
+		/* Period IRQ */
+		.start	= 232,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* Carry IRQ */
+		.start	= 233,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		/* Alarm IRQ */
+		.start	= 231,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device rtc_device = {
+	.name		= "sh-rtc",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(rtc_resources),
+	.resource	= rtc_resources,
+};
+
+static struct platform_device *sh7203_devices[] __initdata = {
+	&sci_device,
+	&rtc_device,
+};
+
+static int __init sh7203_devices_setup(void)
+{
+	return platform_add_devices(sh7203_devices,
+				    ARRAY_SIZE(sh7203_devices));
+}
+__initcall(sh7203_devices_setup);
+
+void __init plat_irq_setup(void)
+{
+	register_intc_controller(&intc_desc);
+}
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 1ec40091a4e8..c5a453fb19ca 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -294,6 +294,7 @@ void __init setup_arch(char **cmdline_p)
 }
 
 static const char *cpu_name[] = {
+	[CPU_SH7203]	= "SH7203",
 	[CPU_SH7206]	= "SH7206",	[CPU_SH7619]	= "SH7619",
 	[CPU_SH7705]	= "SH7705",	[CPU_SH7706]	= "SH7706",
 	[CPU_SH7707]	= "SH7707",	[CPU_SH7708]	= "SH7708",
diff --git a/arch/sh/kernel/timers/timer-cmt.c b/arch/sh/kernel/timers/timer-cmt.c
index 82de6895ade5..4828a53d81ea 100644
--- a/arch/sh/kernel/timers/timer-cmt.c
+++ b/arch/sh/kernel/timers/timer-cmt.c
@@ -31,7 +31,7 @@
 #define cmt_clock_enable() do {	ctrl_outb(ctrl_inb(STBCR3) & ~0x10, STBCR3); } while(0)
 #define CMT_CMCSR_INIT	0x0040
 #define CMT_CMCSR_CALIB	0x0000
-#elif defined(CONFIG_CPU_SUBTYPE_SH7206)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7203) || defined(CONFIG_CPU_SUBTYPE_SH7206)
 #define CMT_CMSTR	0xfffec000
 #define CMT_CMCSR_0	0xfffec002
 #define CMT_CMCNT_0	0xfffec004
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index d24621ce799a..cde06a481829 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -142,7 +142,8 @@
 # define SCIF_OPER	0x0001		/* Overrun error bit */
 # define SCSCR_INIT(port)	0x3a	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 # define SCIF_ONLY
-#elif defined(CONFIG_CPU_SUBTYPE_SH7206)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7203) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7206)
 # define SCSPTR0 0xfffe8020 /* 16 bit SCIF */
 # define SCSPTR1 0xfffe8820 /* 16 bit SCIF */
 # define SCSPTR2 0xfffe9020 /* 16 bit SCIF */
@@ -617,7 +618,8 @@ static inline int sci_rxd_in(struct uart_port *port)
 		return ctrl_inw(SCSPTR5) & 0x0001 ? 1 : 0; /* SCIF */
 	return 1;
 }
-#elif defined(CONFIG_CPU_SUBTYPE_SH7206)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7203) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7206)
 static inline int sci_rxd_in(struct uart_port *port)
 {
 	if (port->mapbase == 0xfffe8000)
diff --git a/include/asm-sh/bugs.h b/include/asm-sh/bugs.h
index e2d79567e2a9..94149c8a759c 100644
--- a/include/asm-sh/bugs.h
+++ b/include/asm-sh/bugs.h
@@ -25,7 +25,7 @@ static void __init check_bugs(void)
 	case CPU_SH7619:
 		*p++ = '2';
 		break;
-	case CPU_SH7206:
+	case CPU_SH7203 ... CPU_SH7206:
 		*p++ = '2';
 		*p++ = 'a';
 		break;
diff --git a/include/asm-sh/cpu-sh2a/freq.h b/include/asm-sh/cpu-sh2a/freq.h
index e518fff6d10f..830fd43b6cdc 100644
--- a/include/asm-sh/cpu-sh2a/freq.h
+++ b/include/asm-sh/cpu-sh2a/freq.h
@@ -10,9 +10,7 @@
 #ifndef __ASM_CPU_SH2A_FREQ_H
 #define __ASM_CPU_SH2A_FREQ_H
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7206)
 #define FREQCR	0xfffe0010
-#endif
 
 #endif /* __ASM_CPU_SH2A_FREQ_H */
 
diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h
index 3ae2a1c223f2..70f083f07d71 100644
--- a/include/asm-sh/processor.h
+++ b/include/asm-sh/processor.h
@@ -17,7 +17,7 @@ enum cpu_type {
 	CPU_SH7619,
 
 	/* SH-2A types */
-	CPU_SH7206,
+	CPU_SH7203, CPU_SH7206,
 
 	/* SH-3 types */
 	CPU_SH7705, CPU_SH7706, CPU_SH7707,
-- 
cgit v1.2.3-59-g8ed1b


From 47a3eb95560ea525a2dfbee1c4e7f03a45fd2207 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 26 Nov 2007 18:17:51 +0900
Subject: sh: Fix the arch/sh/kernel/traps.c build for sh32.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/traps.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index bf70827b17cc..a3bdc68ef02c 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -2,6 +2,8 @@
 #include <linux/io.h>
 #include <linux/types.h>
 #include <linux/kdebug.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
 #include <asm/system.h>
 
 #ifdef CONFIG_BUG
-- 
cgit v1.2.3-59-g8ed1b


From a8f67f4b4d4b74cd14d3540ade8657ebee543340 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 26 Nov 2007 19:54:02 +0900
Subject: sh: Add SH7263 CPU support.

This adds support for the SH7263 (SH-2A) CPU.

This particular CPU is a superset of SH7203, adding some additional
peripheral blocks and hooking up additional (reserved on SH7203)
vectors in the INTC block.

No visibly nasty surprises, yet..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig                        |  7 +++++-
 arch/sh/Kconfig.debug                  |  2 +-
 arch/sh/kernel/cpu/sh2a/Makefile       |  1 +
 arch/sh/kernel/cpu/sh2a/probe.c        |  3 +++
 arch/sh/kernel/cpu/sh2a/setup-sh7203.c | 42 ++++++++++++++++++++++++++++++++--
 arch/sh/kernel/setup.c                 |  2 +-
 arch/sh/kernel/timers/timer-cmt.c      |  4 +++-
 drivers/serial/sh-sci.h                |  6 +++--
 include/asm-sh/bugs.h                  |  2 +-
 include/asm-sh/processor.h             |  2 +-
 10 files changed, 61 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index d8f62b842656..c18a5512ac82 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -166,6 +166,10 @@ config CPU_SUBTYPE_SH7206
 	bool "Support SH7206 processor"
 	select CPU_SH2A
 
+config CPU_SUBTYPE_SH7263
+	bool "Support SH7263 processor"
+	select CPU_SH2A
+
 # SH-3 Processor Support
 
 config CPU_SUBTYPE_SH7705
@@ -560,7 +564,8 @@ config SH_PCLK_FREQ
 	default "32000000" if CPU_SUBTYPE_SH7722
 	default "33333333" if CPU_SUBTYPE_SH7770 || \
 			      CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
-			      CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206
+			      CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
+			      CPU_SUBTYPE_SH7263
 	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
 	default "66000000" if CPU_SUBTYPE_SH4_202
 	default "50000000"
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index f7e362c9d76d..b0dcb240d798 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -33,7 +33,7 @@ config EARLY_SCIF_CONSOLE_PORT
 	default "0xffe00000" if CPU_SUBTYPE_SH7780
 	default "0xffea0000" if CPU_SUBTYPE_SH7785
 	default "0xfffe8000" if CPU_SUBTYPE_SH7203
-	default "0xfffe9800" if CPU_SUBTYPE_SH7206
+	default "0xfffe9800" if CPU_SUBTYPE_SH7206 || CPU_SUBTYPE_SH7263
 	default "0xf8420000" if CPU_SUBTYPE_SH7619
 	default "0xa4400000" if CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7705
 	default "0xa4430000" if CPU_SUBTYPE_SH7720
diff --git a/arch/sh/kernel/cpu/sh2a/Makefile b/arch/sh/kernel/cpu/sh2a/Makefile
index 5286eeff1cc3..50e4d0ffdd6f 100644
--- a/arch/sh/kernel/cpu/sh2a/Makefile
+++ b/arch/sh/kernel/cpu/sh2a/Makefile
@@ -8,3 +8,4 @@ common-y	+= $(addprefix ../sh2/, ex.o entry.o)
 
 obj-$(CONFIG_CPU_SUBTYPE_SH7206) += setup-sh7206.o clock-sh7206.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7203) += setup-sh7203.o clock-sh7203.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7263) += setup-sh7203.o clock-sh7203.o
diff --git a/arch/sh/kernel/cpu/sh2a/probe.c b/arch/sh/kernel/cpu/sh2a/probe.c
index 64f10102b720..6910e2664468 100644
--- a/arch/sh/kernel/cpu/sh2a/probe.c
+++ b/arch/sh/kernel/cpu/sh2a/probe.c
@@ -22,6 +22,9 @@ int __init detect_cpu_and_cache_system(void)
 	boot_cpu_data.type			= CPU_SH7203;
 	/* SH7203 has an FPU.. */
 	boot_cpu_data.flags			|= CPU_HAS_FPU;
+#elif defined(CONFIG_CPU_SUBTYPE_SH7263)
+	boot_cpu_data.type			= CPU_SH7263;
+	boot_cpu_data.flags			|= CPU_HAS_FPU;
 #elif defined(CONFIG_CPU_SUBTYPE_SH7206)
 	boot_cpu_data.type			= CPU_SH7206;
 	/* While SH7206 has a DSP.. */
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
index 06f27c8b8583..3518f9c37d93 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
@@ -1,5 +1,5 @@
 /*
- * SH7203 Setup
+ * SH7203 and SH7263 Setup
  *
  *  Copyright (C) 2007  Paul Mundt
  *
@@ -41,17 +41,27 @@ enum {
 	SSU0_SSERI, SSU0_SSRXI, SSU0_SSTXI,
 	SSU1_SSERI, SSU1_SSRXI, SSU1_SSTXI,
 	SSI0_SSII, SSI1_SSII, SSI2_SSII, SSI3_SSII,
+
+	/* ROM-DEC, SDHI, SRC, and IEB are SH7263 specific */
+	ROMDEC_ISY, ROMDEC_IERR, ROMDEC_IARG, ROMDEC_ISEC, ROMDEC_IBUF,
+	ROMDEC_IREADY,
+
 	FLCTL_FLSTEI, FLCTL_FLTENDI, FLCTL_FLTREQ0I, FLCTL_FLTREQ1I,
+
+	SDHI3, SDHI0, SDHI1,
+
 	RTC_ARM, RTC_PRD, RTC_CUP,
 	RCAN0_ERS, RCAN0_OVR, RCAN0_RM0, RCAN0_RM1, RCAN0_SLE,
 	RCAN1_ERS, RCAN1_OVR, RCAN1_RM0, RCAN1_RM1, RCAN1_SLE,
 
+	SRC_OVF, SRC_ODFI, SRC_IDEI, IEBI,
+
 	/* interrupt groups */
 	PINT, DMAC0, DMAC1, DMAC2, DMAC3, DMAC4, DMAC5, DMAC6, DMAC7,
 	MTU0_ABCD, MTU0_VEF, MTU1_AB, MTU1_VU, MTU2_AB, MTU2_VU,
 	MTU3_ABCD, MTU4_ABCD,
 	IIC30, IIC31, IIC32, IIC33, SCIF0, SCIF1, SCIF2, SCIF3,
-	SSU0, SSU1, FLCTL, RTC, RCAN0, RCAN1
+	SSU0, SSU1, ROMDEC, SDHI, FLCTL, RTC, RCAN0, RCAN1, SRC
 };
 
 static struct intc_vect vectors[] __initdata = {
@@ -125,6 +135,20 @@ static struct intc_vect vectors[] __initdata = {
 	INTC_IRQ(RCAN1_ERS, 239), INTC_IRQ(RCAN1_OVR, 240),
 	INTC_IRQ(RCAN1_RM0, 241), INTC_IRQ(RCAN1_RM1, 242),
 	INTC_IRQ(RCAN1_SLE, 243),
+
+	/* SH7263-specific trash */
+#ifdef CONFIG_CPU_SUBTYPE_SH7263
+	INTC_IRQ(ROMDEC_ISY, 218), INTC_IRQ(ROMDEC_IERR, 219),
+	INTC_IRQ(ROMDEC_IARG, 220), INTC_IRQ(ROMDEC_ISEC, 221),
+	INTC_IRQ(ROMDEC_IBUF, 222), INTC_IRQ(ROMDEC_IREADY, 223),
+
+	INTC_IRQ(SDHI3, 228), INTC_IRQ(SDHI0, 229), INTC_IRQ(SDHI1, 230),
+
+	INTC_IRQ(SRC_OVF, 244), INTC_IRQ(SRC_ODFI, 245),
+	INTC_IRQ(SRC_IDEI, 246),
+
+	INTC_IRQ(IEBI, 247),
+#endif
 };
 
 static struct intc_group groups[] __initdata = {
@@ -167,6 +191,13 @@ static struct intc_group groups[] __initdata = {
 		   RCAN0_SLE),
 	INTC_GROUP(RCAN1, RCAN1_ERS, RCAN1_OVR, RCAN1_RM0, RCAN1_RM1,
 		   RCAN1_SLE),
+
+#ifdef CONFIG_CPU_SUBTYPE_SH7263
+	INTC_GROUP(ROMDEC, ROMDEC_ISY, ROMDEC_IERR, ROMDEC_IARG,
+		   ROMDEC_ISEC, ROMDEC_IBUF, ROMDEC_IREADY),
+	INTC_GROUP(SDHI, SDHI3, SDHI0, SDHI1),
+	INTC_GROUP(SRC, SRC_OVF, SRC_ODFI, SRC_IDEI),
+#endif
 };
 
 static struct intc_prio_reg prio_registers[] __initdata = {
@@ -184,10 +215,17 @@ static struct intc_prio_reg prio_registers[] __initdata = {
 	{ 0xfffe0c0c, 0, 16, 4, /* IPR12 */ { ADC_ADI, IIC30, IIC31, IIC32 } },
 	{ 0xfffe0c0e, 0, 16, 4, /* IPR13 */ { IIC33, SCIF0, SCIF1, SCIF2 } },
 	{ 0xfffe0c10, 0, 16, 4, /* IPR14 */ { SCIF3, SSU0, SSU1, SSI0_SSII } },
+#ifdef CONFIG_CPU_SUBTYPE_SH7203
 	{ 0xfffe0c12, 0, 16, 4, /* IPR15 */ { SSI1_SSII, SSI2_SSII,
 					      SSI3_SSII, 0 } },
 	{ 0xfffe0c14, 0, 16, 4, /* IPR16 */ { FLCTL, 0, RTC, RCAN0 } },
 	{ 0xfffe0c16, 0, 16, 4, /* IPR17 */ { RCAN1, 0, 0, 0 } },
+#else
+	{ 0xfffe0c12, 0, 16, 4, /* IPR15 */ { SSI1_SSII, SSI2_SSII,
+					      SSI3_SSII, ROMDEC } },
+	{ 0xfffe0c14, 0, 16, 4, /* IPR16 */ { FLCTL, SDHI, RTC, RCAN0 } },
+	{ 0xfffe0c16, 0, 16, 4, /* IPR17 */ { RCAN1, SRC, IEBI, 0 } },
+#endif
 };
 
 static struct intc_mask_reg mask_registers[] __initdata = {
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index c5a453fb19ca..6891cc93548e 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -294,7 +294,7 @@ void __init setup_arch(char **cmdline_p)
 }
 
 static const char *cpu_name[] = {
-	[CPU_SH7203]	= "SH7203",
+	[CPU_SH7203]	= "SH7203",	[CPU_SH7263]	= "SH7263",
 	[CPU_SH7206]	= "SH7206",	[CPU_SH7619]	= "SH7619",
 	[CPU_SH7705]	= "SH7705",	[CPU_SH7706]	= "SH7706",
 	[CPU_SH7707]	= "SH7707",	[CPU_SH7708]	= "SH7708",
diff --git a/arch/sh/kernel/timers/timer-cmt.c b/arch/sh/kernel/timers/timer-cmt.c
index 4828a53d81ea..499e07beebe2 100644
--- a/arch/sh/kernel/timers/timer-cmt.c
+++ b/arch/sh/kernel/timers/timer-cmt.c
@@ -31,7 +31,9 @@
 #define cmt_clock_enable() do {	ctrl_outb(ctrl_inb(STBCR3) & ~0x10, STBCR3); } while(0)
 #define CMT_CMCSR_INIT	0x0040
 #define CMT_CMCSR_CALIB	0x0000
-#elif defined(CONFIG_CPU_SUBTYPE_SH7203) || defined(CONFIG_CPU_SUBTYPE_SH7206)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7203) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7206) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7263)
 #define CMT_CMSTR	0xfffec000
 #define CMT_CMCSR_0	0xfffec002
 #define CMT_CMCNT_0	0xfffec004
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index cde06a481829..0187dccfe8c1 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -143,7 +143,8 @@
 # define SCSCR_INIT(port)	0x3a	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 # define SCIF_ONLY
 #elif defined(CONFIG_CPU_SUBTYPE_SH7203) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7206)
+      defined(CONFIG_CPU_SUBTYPE_SH7206) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7263)
 # define SCSPTR0 0xfffe8020 /* 16 bit SCIF */
 # define SCSPTR1 0xfffe8820 /* 16 bit SCIF */
 # define SCSPTR2 0xfffe9020 /* 16 bit SCIF */
@@ -619,7 +620,8 @@ static inline int sci_rxd_in(struct uart_port *port)
 	return 1;
 }
 #elif defined(CONFIG_CPU_SUBTYPE_SH7203) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7206)
+      defined(CONFIG_CPU_SUBTYPE_SH7206) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7263)
 static inline int sci_rxd_in(struct uart_port *port)
 {
 	if (port->mapbase == 0xfffe8000)
diff --git a/include/asm-sh/bugs.h b/include/asm-sh/bugs.h
index 94149c8a759c..9ce67fd51190 100644
--- a/include/asm-sh/bugs.h
+++ b/include/asm-sh/bugs.h
@@ -25,7 +25,7 @@ static void __init check_bugs(void)
 	case CPU_SH7619:
 		*p++ = '2';
 		break;
-	case CPU_SH7203 ... CPU_SH7206:
+	case CPU_SH7203 ... CPU_SH7263:
 		*p++ = '2';
 		*p++ = 'a';
 		break;
diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h
index 70f083f07d71..bbbdaab8de5f 100644
--- a/include/asm-sh/processor.h
+++ b/include/asm-sh/processor.h
@@ -17,7 +17,7 @@ enum cpu_type {
 	CPU_SH7619,
 
 	/* SH-2A types */
-	CPU_SH7203, CPU_SH7206,
+	CPU_SH7203, CPU_SH7206, CPU_SH7263,
 
 	/* SH-3 types */
 	CPU_SH7705, CPU_SH7706, CPU_SH7707,
-- 
cgit v1.2.3-59-g8ed1b


From 74d99a5e262229ee865f6f68528d10b82471ead6 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 26 Nov 2007 20:38:36 +0900
Subject: sh: SH-2A FPU support.

Signed-off-by: Kieran Bingham <kbingham@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig                  |   2 +
 arch/sh/Makefile                 |   4 -
 arch/sh/kernel/cpu/sh2/entry.S   |  17 +-
 arch/sh/kernel/cpu/sh2a/Makefile |   2 +
 arch/sh/kernel/cpu/sh2a/fpu.c    | 633 +++++++++++++++++++++++++++++++++++++++
 arch/sh/kernel/cpu/sh3/ex.S      |   2 +-
 arch/sh/kernel/cpu/sh4/fpu.c     |  23 +-
 arch/sh/kernel/traps_32.c        |  13 +-
 include/asm-sh/fpu.h             |   2 +
 include/asm-sh/sigcontext.h      |   3 +-
 include/asm-sh/system.h          |   2 +
 11 files changed, 673 insertions(+), 30 deletions(-)
 create mode 100644 arch/sh/kernel/cpu/sh2a/fpu.c

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index c18a5512ac82..2dc3b177193c 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -161,6 +161,7 @@ config CPU_SUBTYPE_SH7619
 config CPU_SUBTYPE_SH7203
 	bool "Support SH7203 processor"
 	select CPU_SH2A
+	select CPU_HAS_FPU
 
 config CPU_SUBTYPE_SH7206
 	bool "Support SH7206 processor"
@@ -169,6 +170,7 @@ config CPU_SUBTYPE_SH7206
 config CPU_SUBTYPE_SH7263
 	bool "Support SH7263 processor"
 	select CPU_SH2A
+	select CPU_HAS_FPU
 
 # SH-3 Processor Support
 
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index f7cbc13fd2a0..292d8618248d 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -20,10 +20,6 @@ isa-$(CONFIG_CPU_SH4AL_DSP)		:= sh4al
 isa-$(CONFIG_CPU_SH5)			:= shmedia
 isa-$(CONFIG_SH_DSP)			:= $(isa-y)-dsp
 
-ifndef CONFIG_MMU
-isa-y			:= $(isa-y)-nommu
-endif
-
 ifndef CONFIG_SH_DSP
 ifndef CONFIG_SH_FPU
 isa-y			:= $(isa-y)-nofpu
diff --git a/arch/sh/kernel/cpu/sh2/entry.S b/arch/sh/kernel/cpu/sh2/entry.S
index 4ff2334b4a38..7a26569e7956 100644
--- a/arch/sh/kernel/cpu/sh2/entry.S
+++ b/arch/sh/kernel/cpu/sh2/entry.S
@@ -149,6 +149,14 @@ ENTRY(exception_handler)
 	mov	#32,r8
 	cmp/hs	r8,r9
 	bt	trap_entry	! 64 > vec >= 32  is trap
+
+#if defined(CONFIG_SH_FPU)
+	mov     #13,r8
+	cmp/eq  r8,r9
+	bt      10f             ! fpu
+	nop
+#endif
+
 	mov.l	4f,r8
 	mov	r9,r4
 	shll2	r9
@@ -158,6 +166,10 @@ ENTRY(exception_handler)
 	cmp/eq	r9,r8
 	bf	3f
 	mov.l	8f,r8		! unhandled exception
+#if defined(CONFIG_SH_FPU)
+10:
+	mov.l	9f, r8		! unhandled exception
+#endif
 3:
 	mov.l	5f,r10
 	jmp	@r8
@@ -177,7 +189,10 @@ interrupt_entry:
 6:	.long	ret_from_irq
 7:	.long	do_IRQ
 8:	.long	do_exception_error
-	
+#ifdef CONFIG_SH_FPU
+9:	.long	fpu_error_trap_handler
+#endif
+
 trap_entry:
 	mov	#0x30,r8
 	cmp/ge	r8,r9		! vector 0x20-0x2f is systemcall
diff --git a/arch/sh/kernel/cpu/sh2a/Makefile b/arch/sh/kernel/cpu/sh2a/Makefile
index 50e4d0ffdd6f..b279cdc3a233 100644
--- a/arch/sh/kernel/cpu/sh2a/Makefile
+++ b/arch/sh/kernel/cpu/sh2a/Makefile
@@ -6,6 +6,8 @@ obj-y	:= common.o probe.o opcode_helper.o
 
 common-y	+= $(addprefix ../sh2/, ex.o entry.o)
 
+obj-$(CONFIG_SH_FPU)	+= fpu.o
+
 obj-$(CONFIG_CPU_SUBTYPE_SH7206) += setup-sh7206.o clock-sh7206.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7203) += setup-sh7203.o clock-sh7203.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7263) += setup-sh7203.o clock-sh7203.o
diff --git a/arch/sh/kernel/cpu/sh2a/fpu.c b/arch/sh/kernel/cpu/sh2a/fpu.c
new file mode 100644
index 000000000000..ff99562456fb
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh2a/fpu.c
@@ -0,0 +1,633 @@
+/*
+ * Save/restore floating point context for signal handlers.
+ *
+ * Copyright (C) 1999, 2000  Kaz Kojima & Niibe Yutaka
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * FIXME! These routines can be optimized in big endian case.
+ */
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+
+/* The PR (precision) bit in the FP Status Register must be clear when
+ * an frchg instruction is executed, otherwise the instruction is undefined.
+ * Executing frchg with PR set causes a trap on some SH4 implementations.
+ */
+
+#define FPSCR_RCHG 0x00000000
+
+
+/*
+ * Save FPU registers onto task structure.
+ * Assume called with FPU enabled (SR.FD=0).
+ */
+void
+save_fpu(struct task_struct *tsk, struct pt_regs *regs)
+{
+	unsigned long dummy;
+
+	clear_tsk_thread_flag(tsk, TIF_USEDFPU);
+	enable_fpu();
+	asm volatile("sts.l	fpul, @-%0\n\t"
+		     "sts.l	fpscr, @-%0\n\t"
+		     "fmov.s	fr15, @-%0\n\t"
+		     "fmov.s	fr14, @-%0\n\t"
+		     "fmov.s	fr13, @-%0\n\t"
+		     "fmov.s	fr12, @-%0\n\t"
+		     "fmov.s	fr11, @-%0\n\t"
+		     "fmov.s	fr10, @-%0\n\t"
+		     "fmov.s	fr9, @-%0\n\t"
+		     "fmov.s	fr8, @-%0\n\t"
+		     "fmov.s	fr7, @-%0\n\t"
+		     "fmov.s	fr6, @-%0\n\t"
+		     "fmov.s	fr5, @-%0\n\t"
+		     "fmov.s	fr4, @-%0\n\t"
+		     "fmov.s	fr3, @-%0\n\t"
+		     "fmov.s	fr2, @-%0\n\t"
+		     "fmov.s	fr1, @-%0\n\t"
+		     "fmov.s	fr0, @-%0\n\t"
+		     "lds	%3, fpscr\n\t"
+		     : "=r" (dummy)
+		     : "0" ((char *)(&tsk->thread.fpu.hard.status)),
+		       "r" (FPSCR_RCHG),
+		       "r" (FPSCR_INIT)
+		     : "memory");
+
+	disable_fpu();
+	release_fpu(regs);
+}
+
+static void
+restore_fpu(struct task_struct *tsk)
+{
+	unsigned long dummy;
+
+	enable_fpu();
+	asm volatile("fmov.s	@%0+, fr0\n\t"
+		     "fmov.s	@%0+, fr1\n\t"
+		     "fmov.s	@%0+, fr2\n\t"
+		     "fmov.s	@%0+, fr3\n\t"
+		     "fmov.s	@%0+, fr4\n\t"
+		     "fmov.s	@%0+, fr5\n\t"
+		     "fmov.s	@%0+, fr6\n\t"
+		     "fmov.s	@%0+, fr7\n\t"
+		     "fmov.s	@%0+, fr8\n\t"
+		     "fmov.s	@%0+, fr9\n\t"
+		     "fmov.s	@%0+, fr10\n\t"
+		     "fmov.s	@%0+, fr11\n\t"
+		     "fmov.s	@%0+, fr12\n\t"
+		     "fmov.s	@%0+, fr13\n\t"
+		     "fmov.s	@%0+, fr14\n\t"
+		     "fmov.s	@%0+, fr15\n\t"
+		     "lds.l	@%0+, fpscr\n\t"
+		     "lds.l	@%0+, fpul\n\t"
+		     : "=r" (dummy)
+		     : "0" (&tsk->thread.fpu), "r" (FPSCR_RCHG)
+		     : "memory");
+	disable_fpu();
+}
+
+/*
+ * Load the FPU with signalling NANS.  This bit pattern we're using
+ * has the property that no matter wether considered as single or as
+ * double precission represents signaling NANS.
+ */
+
+static void
+fpu_init(void)
+{
+	enable_fpu();
+	asm volatile("lds	%0, fpul\n\t"
+		     "fsts	fpul, fr0\n\t"
+		     "fsts	fpul, fr1\n\t"
+		     "fsts	fpul, fr2\n\t"
+		     "fsts	fpul, fr3\n\t"
+		     "fsts	fpul, fr4\n\t"
+		     "fsts	fpul, fr5\n\t"
+		     "fsts	fpul, fr6\n\t"
+		     "fsts	fpul, fr7\n\t"
+		     "fsts	fpul, fr8\n\t"
+		     "fsts	fpul, fr9\n\t"
+		     "fsts	fpul, fr10\n\t"
+		     "fsts	fpul, fr11\n\t"
+		     "fsts	fpul, fr12\n\t"
+		     "fsts	fpul, fr13\n\t"
+		     "fsts	fpul, fr14\n\t"
+		     "fsts	fpul, fr15\n\t"
+		     "lds	%2, fpscr\n\t"
+		     : /* no output */
+		     : "r" (0), "r" (FPSCR_RCHG), "r" (FPSCR_INIT));
+	disable_fpu();
+}
+
+/*
+ *	Emulate arithmetic ops on denormalized number for some FPU insns.
+ */
+
+/* denormalized float * float */
+static int denormal_mulf(int hx, int hy)
+{
+	unsigned int ix, iy;
+	unsigned long long m, n;
+	int exp, w;
+
+	ix = hx & 0x7fffffff;
+	iy = hy & 0x7fffffff;
+	if (iy < 0x00800000 || ix == 0)
+		return ((hx ^ hy) & 0x80000000);
+
+	exp = (iy & 0x7f800000) >> 23;
+	ix &= 0x007fffff;
+	iy = (iy & 0x007fffff) | 0x00800000;
+	m = (unsigned long long)ix * iy;
+	n = m;
+	w = -1;
+	while (n) { n >>= 1; w++; }
+
+	/* FIXME: use guard bits */
+	exp += w - 126 - 46;
+	if (exp > 0)
+		ix = ((int) (m >> (w - 23)) & 0x007fffff) | (exp << 23);
+	else if (exp + 22 >= 0)
+		ix = (int) (m >> (w - 22 - exp)) & 0x007fffff;
+	else
+		ix = 0;
+
+	ix |= (hx ^ hy) & 0x80000000;
+	return ix;
+}
+
+/* denormalized double * double */
+static void mult64(unsigned long long x, unsigned long long y,
+		unsigned long long *highp, unsigned long long *lowp)
+{
+	unsigned long long sub0, sub1, sub2, sub3;
+	unsigned long long high, low;
+
+	sub0 = (x >> 32) * (unsigned long) (y >> 32);
+	sub1 = (x & 0xffffffffLL) * (unsigned long) (y >> 32);
+	sub2 = (x >> 32) * (unsigned long) (y & 0xffffffffLL);
+	sub3 = (x & 0xffffffffLL) * (unsigned long) (y & 0xffffffffLL);
+	low = sub3;
+	high = 0LL;
+	sub3 += (sub1 << 32);
+	if (low > sub3)
+		high++;
+	low = sub3;
+	sub3 += (sub2 << 32);
+	if (low > sub3)
+		high++;
+	low = sub3;
+	high += (sub1 >> 32) + (sub2 >> 32);
+	high += sub0;
+	*lowp = low;
+	*highp = high;
+}
+
+static inline long long rshift64(unsigned long long mh,
+		unsigned long long ml, int n)
+{
+	if (n >= 64)
+		return mh >> (n - 64);
+	return (mh << (64 - n)) | (ml >> n);
+}
+
+static long long denormal_muld(long long hx, long long hy)
+{
+	unsigned long long ix, iy;
+	unsigned long long mh, ml, nh, nl;
+	int exp, w;
+
+	ix = hx & 0x7fffffffffffffffLL;
+	iy = hy & 0x7fffffffffffffffLL;
+	if (iy < 0x0010000000000000LL || ix == 0)
+		return ((hx ^ hy) & 0x8000000000000000LL);
+
+	exp = (iy & 0x7ff0000000000000LL) >> 52;
+	ix &= 0x000fffffffffffffLL;
+	iy = (iy & 0x000fffffffffffffLL) | 0x0010000000000000LL;
+	mult64(ix, iy, &mh, &ml);
+	nh = mh;
+	nl = ml;
+	w = -1;
+	if (nh) {
+		while (nh) { nh >>= 1; w++;}
+		w += 64;
+	} else
+		while (nl) { nl >>= 1; w++;}
+
+	/* FIXME: use guard bits */
+	exp += w - 1022 - 52 * 2;
+	if (exp > 0)
+		ix = (rshift64(mh, ml, w - 52) & 0x000fffffffffffffLL)
+			| ((long long)exp << 52);
+	else if (exp + 51 >= 0)
+		ix = rshift64(mh, ml, w - 51 - exp) & 0x000fffffffffffffLL;
+	else
+		ix = 0;
+
+	ix |= (hx ^ hy) & 0x8000000000000000LL;
+	return ix;
+}
+
+/* ix - iy where iy: denormal and ix, iy >= 0 */
+static int denormal_subf1(unsigned int ix, unsigned int iy)
+{
+	int frac;
+	int exp;
+
+	if (ix < 0x00800000)
+		return ix - iy;
+
+	exp = (ix & 0x7f800000) >> 23;
+	if (exp - 1 > 31)
+		return ix;
+	iy >>= exp - 1;
+	if (iy == 0)
+		return ix;
+
+	frac = (ix & 0x007fffff) | 0x00800000;
+	frac -= iy;
+	while (frac < 0x00800000) {
+		if (--exp == 0)
+			return frac;
+		frac <<= 1;
+	}
+
+	return (exp << 23) | (frac & 0x007fffff);
+}
+
+/* ix + iy where iy: denormal and ix, iy >= 0 */
+static int denormal_addf1(unsigned int ix, unsigned int iy)
+{
+	int frac;
+	int exp;
+
+	if (ix < 0x00800000)
+		return ix + iy;
+
+	exp = (ix & 0x7f800000) >> 23;
+	if (exp - 1 > 31)
+		return ix;
+	iy >>= exp - 1;
+	if (iy == 0)
+	  return ix;
+
+	frac = (ix & 0x007fffff) | 0x00800000;
+	frac += iy;
+	if (frac >= 0x01000000) {
+		frac >>= 1;
+		++exp;
+	}
+
+	return (exp << 23) | (frac & 0x007fffff);
+}
+
+static int denormal_addf(int hx, int hy)
+{
+	unsigned int ix, iy;
+	int sign;
+
+	if ((hx ^ hy) & 0x80000000) {
+		sign = hx & 0x80000000;
+		ix = hx & 0x7fffffff;
+		iy = hy & 0x7fffffff;
+		if (iy < 0x00800000) {
+			ix = denormal_subf1(ix, iy);
+			if (ix < 0) {
+				ix = -ix;
+				sign ^= 0x80000000;
+			}
+		} else {
+			ix = denormal_subf1(iy, ix);
+			sign ^= 0x80000000;
+		}
+	} else {
+		sign = hx & 0x80000000;
+		ix = hx & 0x7fffffff;
+		iy = hy & 0x7fffffff;
+		if (iy < 0x00800000)
+			ix = denormal_addf1(ix, iy);
+		else
+			ix = denormal_addf1(iy, ix);
+	}
+
+	return sign | ix;
+}
+
+/* ix - iy where iy: denormal and ix, iy >= 0 */
+static long long denormal_subd1(unsigned long long ix, unsigned long long iy)
+{
+	long long frac;
+	int exp;
+
+	if (ix < 0x0010000000000000LL)
+		return ix - iy;
+
+	exp = (ix & 0x7ff0000000000000LL) >> 52;
+	if (exp - 1 > 63)
+		return ix;
+	iy >>= exp - 1;
+	if (iy == 0)
+		return ix;
+
+	frac = (ix & 0x000fffffffffffffLL) | 0x0010000000000000LL;
+	frac -= iy;
+	while (frac < 0x0010000000000000LL) {
+		if (--exp == 0)
+			return frac;
+		frac <<= 1;
+	}
+
+	return ((long long)exp << 52) | (frac & 0x000fffffffffffffLL);
+}
+
+/* ix + iy where iy: denormal and ix, iy >= 0 */
+static long long denormal_addd1(unsigned long long ix, unsigned long long iy)
+{
+	long long frac;
+	long long exp;
+
+	if (ix < 0x0010000000000000LL)
+		return ix + iy;
+
+	exp = (ix & 0x7ff0000000000000LL) >> 52;
+	if (exp - 1 > 63)
+		return ix;
+	iy >>= exp - 1;
+	if (iy == 0)
+	  return ix;
+
+	frac = (ix & 0x000fffffffffffffLL) | 0x0010000000000000LL;
+	frac += iy;
+	if (frac >= 0x0020000000000000LL) {
+		frac >>= 1;
+		++exp;
+	}
+
+	return (exp << 52) | (frac & 0x000fffffffffffffLL);
+}
+
+static long long denormal_addd(long long hx, long long hy)
+{
+	unsigned long long ix, iy;
+	long long sign;
+
+	if ((hx ^ hy) & 0x8000000000000000LL) {
+		sign = hx & 0x8000000000000000LL;
+		ix = hx & 0x7fffffffffffffffLL;
+		iy = hy & 0x7fffffffffffffffLL;
+		if (iy < 0x0010000000000000LL) {
+			ix = denormal_subd1(ix, iy);
+			if (ix < 0) {
+				ix = -ix;
+				sign ^= 0x8000000000000000LL;
+			}
+		} else {
+			ix = denormal_subd1(iy, ix);
+			sign ^= 0x8000000000000000LL;
+		}
+	} else {
+		sign = hx & 0x8000000000000000LL;
+		ix = hx & 0x7fffffffffffffffLL;
+		iy = hy & 0x7fffffffffffffffLL;
+		if (iy < 0x0010000000000000LL)
+			ix = denormal_addd1(ix, iy);
+		else
+			ix = denormal_addd1(iy, ix);
+	}
+
+	return sign | ix;
+}
+
+/**
+ *	denormal_to_double - Given denormalized float number,
+ *	                     store double float
+ *
+ *	@fpu: Pointer to sh_fpu_hard structure
+ *	@n: Index to FP register
+ */
+static void
+denormal_to_double (struct sh_fpu_hard_struct *fpu, int n)
+{
+	unsigned long du, dl;
+	unsigned long x = fpu->fpul;
+	int exp = 1023 - 126;
+
+	if (x != 0 && (x & 0x7f800000) == 0) {
+		du = (x & 0x80000000);
+		while ((x & 0x00800000) == 0) {
+			x <<= 1;
+			exp--;
+		}
+		x &= 0x007fffff;
+		du |= (exp << 20) | (x >> 3);
+		dl = x << 29;
+
+		fpu->fp_regs[n] = du;
+		fpu->fp_regs[n+1] = dl;
+	}
+}
+
+/**
+ *	ieee_fpe_handler - Handle denormalized number exception
+ *
+ *	@regs: Pointer to register structure
+ *
+ *	Returns 1 when it's handled (should not cause exception).
+ */
+static int
+ieee_fpe_handler (struct pt_regs *regs)
+{
+	unsigned short insn = *(unsigned short *) regs->pc;
+	unsigned short finsn;
+	unsigned long nextpc;
+	int nib[4] = {
+		(insn >> 12) & 0xf,
+		(insn >> 8) & 0xf,
+		(insn >> 4) & 0xf,
+		insn & 0xf};
+
+	if (nib[0] == 0xb ||
+	    (nib[0] == 0x4 && nib[2] == 0x0 && nib[3] == 0xb)) /* bsr & jsr */
+		regs->pr = regs->pc + 4;
+	if (nib[0] == 0xa || nib[0] == 0xb) { /* bra & bsr */
+		nextpc = regs->pc + 4 + ((short) ((insn & 0xfff) << 4) >> 3);
+		finsn = *(unsigned short *) (regs->pc + 2);
+	} else if (nib[0] == 0x8 && nib[1] == 0xd) { /* bt/s */
+		if (regs->sr & 1)
+			nextpc = regs->pc + 4 + ((char) (insn & 0xff) << 1);
+		else
+			nextpc = regs->pc + 4;
+		finsn = *(unsigned short *) (regs->pc + 2);
+	} else if (nib[0] == 0x8 && nib[1] == 0xf) { /* bf/s */
+		if (regs->sr & 1)
+			nextpc = regs->pc + 4;
+		else
+			nextpc = regs->pc + 4 + ((char) (insn & 0xff) << 1);
+		finsn = *(unsigned short *) (regs->pc + 2);
+	} else if (nib[0] == 0x4 && nib[3] == 0xb &&
+		 (nib[2] == 0x0 || nib[2] == 0x2)) { /* jmp & jsr */
+		nextpc = regs->regs[nib[1]];
+		finsn = *(unsigned short *) (regs->pc + 2);
+	} else if (nib[0] == 0x0 && nib[3] == 0x3 &&
+		 (nib[2] == 0x0 || nib[2] == 0x2)) { /* braf & bsrf */
+		nextpc = regs->pc + 4 + regs->regs[nib[1]];
+		finsn = *(unsigned short *) (regs->pc + 2);
+	} else if (insn == 0x000b) { /* rts */
+		nextpc = regs->pr;
+		finsn = *(unsigned short *) (regs->pc + 2);
+	} else {
+		nextpc = regs->pc + 2;
+		finsn = insn;
+	}
+
+#define FPSCR_FPU_ERROR (1 << 17)
+
+	if ((finsn & 0xf1ff) == 0xf0ad) { /* fcnvsd */
+		struct task_struct *tsk = current;
+
+		if ((tsk->thread.fpu.hard.fpscr & FPSCR_FPU_ERROR)) {
+			/* FPU error */
+			denormal_to_double (&tsk->thread.fpu.hard,
+					    (finsn >> 8) & 0xf);
+		} else
+			return 0;
+
+		regs->pc = nextpc;
+		return 1;
+	} else if ((finsn & 0xf00f) == 0xf002) { /* fmul */
+		struct task_struct *tsk = current;
+		int fpscr;
+		int n, m, prec;
+		unsigned int hx, hy;
+
+		n = (finsn >> 8) & 0xf;
+		m = (finsn >> 4) & 0xf;
+		hx = tsk->thread.fpu.hard.fp_regs[n];
+		hy = tsk->thread.fpu.hard.fp_regs[m];
+		fpscr = tsk->thread.fpu.hard.fpscr;
+		prec = fpscr & (1 << 19);
+
+		if ((fpscr & FPSCR_FPU_ERROR)
+		     && (prec && ((hx & 0x7fffffff) < 0x00100000
+				   || (hy & 0x7fffffff) < 0x00100000))) {
+			long long llx, lly;
+
+			/* FPU error because of denormal */
+			llx = ((long long) hx << 32)
+			       | tsk->thread.fpu.hard.fp_regs[n+1];
+			lly = ((long long) hy << 32)
+			       | tsk->thread.fpu.hard.fp_regs[m+1];
+			if ((hx & 0x7fffffff) >= 0x00100000)
+				llx = denormal_muld(lly, llx);
+			else
+				llx = denormal_muld(llx, lly);
+			tsk->thread.fpu.hard.fp_regs[n] = llx >> 32;
+			tsk->thread.fpu.hard.fp_regs[n+1] = llx & 0xffffffff;
+		} else if ((fpscr & FPSCR_FPU_ERROR)
+		     && (!prec && ((hx & 0x7fffffff) < 0x00800000
+				   || (hy & 0x7fffffff) < 0x00800000))) {
+			/* FPU error because of denormal */
+			if ((hx & 0x7fffffff) >= 0x00800000)
+				hx = denormal_mulf(hy, hx);
+			else
+				hx = denormal_mulf(hx, hy);
+			tsk->thread.fpu.hard.fp_regs[n] = hx;
+		} else
+			return 0;
+
+		regs->pc = nextpc;
+		return 1;
+	} else if ((finsn & 0xf00e) == 0xf000) { /* fadd, fsub */
+		struct task_struct *tsk = current;
+		int fpscr;
+		int n, m, prec;
+		unsigned int hx, hy;
+
+		n = (finsn >> 8) & 0xf;
+		m = (finsn >> 4) & 0xf;
+		hx = tsk->thread.fpu.hard.fp_regs[n];
+		hy = tsk->thread.fpu.hard.fp_regs[m];
+		fpscr = tsk->thread.fpu.hard.fpscr;
+		prec = fpscr & (1 << 19);
+
+		if ((fpscr & FPSCR_FPU_ERROR)
+		     && (prec && ((hx & 0x7fffffff) < 0x00100000
+				   || (hy & 0x7fffffff) < 0x00100000))) {
+			long long llx, lly;
+
+			/* FPU error because of denormal */
+			llx = ((long long) hx << 32)
+			       | tsk->thread.fpu.hard.fp_regs[n+1];
+			lly = ((long long) hy << 32)
+			       | tsk->thread.fpu.hard.fp_regs[m+1];
+			if ((finsn & 0xf00f) == 0xf000)
+				llx = denormal_addd(llx, lly);
+			else
+				llx = denormal_addd(llx, lly ^ (1LL << 63));
+			tsk->thread.fpu.hard.fp_regs[n] = llx >> 32;
+			tsk->thread.fpu.hard.fp_regs[n+1] = llx & 0xffffffff;
+		} else if ((fpscr & FPSCR_FPU_ERROR)
+		     && (!prec && ((hx & 0x7fffffff) < 0x00800000
+				   || (hy & 0x7fffffff) < 0x00800000))) {
+			/* FPU error because of denormal */
+			if ((finsn & 0xf00f) == 0xf000)
+				hx = denormal_addf(hx, hy);
+			else
+				hx = denormal_addf(hx, hy ^ 0x80000000);
+			tsk->thread.fpu.hard.fp_regs[n] = hx;
+		} else
+			return 0;
+
+		regs->pc = nextpc;
+		return 1;
+	}
+
+	return 0;
+}
+
+BUILD_TRAP_HANDLER(fpu_error)
+{
+	struct task_struct *tsk = current;
+	TRAP_HANDLER_DECL;
+
+	save_fpu(tsk, regs);
+	if (ieee_fpe_handler(regs)) {
+		tsk->thread.fpu.hard.fpscr &=
+			~(FPSCR_CAUSE_MASK | FPSCR_FLAG_MASK);
+		grab_fpu(regs);
+		restore_fpu(tsk);
+		set_tsk_thread_flag(tsk, TIF_USEDFPU);
+		return;
+	}
+
+	force_sig(SIGFPE, tsk);
+}
+
+BUILD_TRAP_HANDLER(fpu_state_restore)
+{
+	struct task_struct *tsk = current;
+	TRAP_HANDLER_DECL;
+
+	grab_fpu(regs);
+	if (!user_mode(regs)) {
+		printk(KERN_ERR "BUG: FPU is used in kernel mode.\n");
+		return;
+	}
+
+	if (used_math()) {
+		/* Using the FPU again.  */
+		restore_fpu(tsk);
+	} else	{
+		/* First time FPU user.  */
+		fpu_init();
+		set_used_math();
+	}
+	set_tsk_thread_flag(tsk, TIF_USEDFPU);
+}
diff --git a/arch/sh/kernel/cpu/sh3/ex.S b/arch/sh/kernel/cpu/sh3/ex.S
index b6abf38d3a8d..11b6d9c6edae 100644
--- a/arch/sh/kernel/cpu/sh3/ex.S
+++ b/arch/sh/kernel/cpu/sh3/ex.S
@@ -36,7 +36,7 @@ ENTRY(exception_handling_table)
 	.long	exception_error	! address error store	/* 100 */
 #endif
 #if defined(CONFIG_SH_FPU)
-	.long	do_fpu_error		/* 120 */
+	.long	fpu_error_trap_handler	/* 120 */
 #else
 	.long	exception_error		/* 120 */
 #endif
diff --git a/arch/sh/kernel/cpu/sh4/fpu.c b/arch/sh/kernel/cpu/sh4/fpu.c
index c5a4fc77fa06..e624180b4467 100644
--- a/arch/sh/kernel/cpu/sh4/fpu.c
+++ b/arch/sh/kernel/cpu/sh4/fpu.c
@@ -82,8 +82,8 @@ save_fpu(struct task_struct *tsk, struct pt_regs *regs)
 		       "r" (FPSCR_INIT)
 		     : "memory");
 
- 	disable_fpu();
- 	release_fpu(regs);
+	disable_fpu();
+	release_fpu(regs);
 }
 
 static void
@@ -91,7 +91,7 @@ restore_fpu(struct task_struct *tsk)
 {
 	unsigned long dummy;
 
- 	enable_fpu();
+	enable_fpu();
 	asm volatile("lds	%2, fpscr\n\t"
 		     "fmov.s	@%0+, fr0\n\t"
 		     "fmov.s	@%0+, fr1\n\t"
@@ -138,7 +138,7 @@ restore_fpu(struct task_struct *tsk)
 /*
  * Load the FPU with signalling NANS.  This bit pattern we're using
  * has the property that no matter wether considered as single or as
- * double precision represents signaling NANS.  
+ * double precision represents signaling NANS.
  */
 
 static void
@@ -184,7 +184,7 @@ fpu_init(void)
 		     "lds	%2, fpscr\n\t"
 		     : /* no output */
 		     : "r" (0), "r" (FPSCR_RCHG), "r" (FPSCR_INIT));
- 	disable_fpu();
+	disable_fpu();
 }
 
 /**
@@ -238,7 +238,6 @@ ieee_fpe_handler (struct pt_regs *regs)
 	if (nib[0] == 0xb ||
 	    (nib[0] == 0x4 && nib[2] == 0x0 && nib[3] == 0xb)) /* bsr & jsr */
 		regs->pr = regs->pc + 4;
-  
 	if (nib[0] == 0xa || nib[0] == 0xb) { /* bra & bsr */
 		nextpc = regs->pc + 4 + ((short) ((insn & 0xfff) << 4) >> 3);
 		finsn = *(unsigned short *) (regs->pc + 2);
@@ -293,12 +292,10 @@ ieee_fpe_handler (struct pt_regs *regs)
 	return 0;
 }
 
-asmlinkage void
-do_fpu_error(unsigned long r4, unsigned long r5, unsigned long r6,
-	     unsigned long r7, struct pt_regs __regs)
+BUILD_TRAP_HANDLER(fpu_error)
 {
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
 	struct task_struct *tsk = current;
+	TRAP_HANDLER_DECL;
 
 	if (ieee_fpe_handler(regs))
 		return;
@@ -308,12 +305,10 @@ do_fpu_error(unsigned long r4, unsigned long r5, unsigned long r6,
 	force_sig(SIGFPE, tsk);
 }
 
-asmlinkage void
-do_fpu_state_restore(unsigned long r4, unsigned long r5, unsigned long r6,
-		     unsigned long r7, struct pt_regs __regs)
+BUILD_TRAP_HANDLER(fpu_state_restore)
 {
-	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
 	struct task_struct *tsk = current;
+	TRAP_HANDLER_DECL;
 
 	grab_fpu(regs);
 	if (!user_mode(regs)) {
diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c
index 0d05fb3c48e3..2e58f7a6b746 100644
--- a/arch/sh/kernel/traps_32.c
+++ b/arch/sh/kernel/traps_32.c
@@ -662,11 +662,6 @@ asmlinkage void do_divide_error(unsigned long r4, unsigned long r5,
 }
 #endif
 
-/* arch/sh/kernel/cpu/sh4/fpu.c */
-extern int do_fpu_inst(unsigned short, struct pt_regs *);
-extern asmlinkage void do_fpu_state_restore(unsigned long r4, unsigned long r5,
-		unsigned long r6, unsigned long r7, struct pt_regs __regs);
-
 asmlinkage void do_reserved_inst(unsigned long r4, unsigned long r5,
 				unsigned long r6, unsigned long r7,
 				struct pt_regs __regs)
@@ -853,11 +848,11 @@ void __init trap_init(void)
 	set_exception_table_evt(0x820, do_illegal_slot_inst);
 #elif defined(CONFIG_SH_FPU)
 #ifdef CONFIG_CPU_SUBTYPE_SHX3
-	set_exception_table_evt(0xd80, do_fpu_state_restore);
-	set_exception_table_evt(0xda0, do_fpu_state_restore);
+	set_exception_table_evt(0xd80, fpu_state_restore_trap_handler);
+	set_exception_table_evt(0xda0, fpu_state_restore_trap_handler);
 #else
-	set_exception_table_evt(0x800, do_fpu_state_restore);
-	set_exception_table_evt(0x820, do_fpu_state_restore);
+	set_exception_table_evt(0x800, fpu_state_restore_trap_handler);
+	set_exception_table_evt(0x820, fpu_state_restore_trap_handler);
 #endif
 #endif
 
diff --git a/include/asm-sh/fpu.h b/include/asm-sh/fpu.h
index 33db698a6b4d..f8429880a270 100644
--- a/include/asm-sh/fpu.h
+++ b/include/asm-sh/fpu.h
@@ -26,6 +26,8 @@ extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs);
 #define save_fpu(tsk, regs)	do { } while (0)
 #endif
 
+extern int do_fpu_inst(unsigned short, struct pt_regs *);
+
 #define unlazy_fpu(tsk, regs) do {			\
 	if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {	\
 		save_fpu(tsk, regs);			\
diff --git a/include/asm-sh/sigcontext.h b/include/asm-sh/sigcontext.h
index 8583143fa28f..8ce1435bc0bf 100644
--- a/include/asm-sh/sigcontext.h
+++ b/include/asm-sh/sigcontext.h
@@ -25,7 +25,8 @@ struct sigcontext {
 	unsigned long sc_mach;
 	unsigned long sc_macl;
 
-#if defined(__SH4__) || defined(CONFIG_CPU_SH4)
+#if defined(__SH4__) || defined(CONFIG_CPU_SH4) || \
+    defined(__SH2A__) || defined(CONFIG_CPU_SH2A)
 	/* FPU registers */
 	unsigned long sc_fpregs[16];
 	unsigned long sc_xfpregs[16];
diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h
index 8b01fc4a56af..ad3d2a636130 100644
--- a/include/asm-sh/system.h
+++ b/include/asm-sh/system.h
@@ -205,6 +205,8 @@ asmlinkage void name##_trap_handler(unsigned int vec, struct pt_regs *regs)
 BUILD_TRAP_HANDLER(address_error);
 BUILD_TRAP_HANDLER(debug);
 BUILD_TRAP_HANDLER(bug);
+BUILD_TRAP_HANDLER(fpu_error);
+BUILD_TRAP_HANDLER(fpu_state_restore);
 
 #define arch_align_stack(x) (x)
 
-- 
cgit v1.2.3-59-g8ed1b


From 80a68a43d90e2221599b507b6b26c3cba1957687 Mon Sep 17 00:00:00 2001
From: Stuart Menefy <stuart.menefy@st.com>
Date: Mon, 26 Nov 2007 21:16:09 +0900
Subject: sh: Add a printk() to warn legacy mem= growers.

mem= can't be used to grow the size of kernel memory, so provide a
warning to that effect.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/setup.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'arch')

diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 6891cc93548e..7eb7fdcce0f8 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -84,6 +84,17 @@ static int __init early_parse_mem(char *p)
 
 	memory_start = (unsigned long)PAGE_OFFSET+__MEMORY_START;
 	size = memparse(p, &p);
+
+	if (size > __MEMORY_SIZE) {
+		static char msg[] __initdata = KERN_ERR
+			"Using mem= to increase the size of kernel memory "
+			"is not allowed.\n"
+			"  Recompile the kernel with the correct value for "
+			"CONFIG_MEMORY_SIZE.\n";
+		printk(msg);
+		return 0;
+	}
+
 	memory_end = memory_start + size;
 
 	return 0;
-- 
cgit v1.2.3-59-g8ed1b


From 7a2eacb75946e0ebb81dfb36b50b5bec1c3cb50f Mon Sep 17 00:00:00 2001
From: Stuart Menefy <stuart.menefy@st.com>
Date: Mon, 26 Nov 2007 21:29:09 +0900
Subject: sh: Provide a 29/32-bit physical hint for bootloaders.

Shoves a magic word in to the empty_zero_page section for the
bootloader to work out whether to start the kernel in 29-bit
or 32-bit mode.

[ Renesas CPUs already take care of the initial PMB mappings entirely
  in hardware and decide on 29-bit/32-bit physical depending on which
  pin powered up the CPU, so this is mostly for ST parts. -- PFM ].

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/head_32.S | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/head_32.S b/arch/sh/kernel/head_32.S
index 3338239717f1..d67d7ed09f22 100644
--- a/arch/sh/kernel/head_32.S
+++ b/arch/sh/kernel/head_32.S
@@ -32,7 +32,11 @@ ENTRY(empty_zero_page)
 	.long	1		/* LOADER_TYPE */
 	.long	0x00360000	/* INITRD_START */
 	.long	0x000a0000	/* INITRD_SIZE */
-	.long	0
+#ifdef CONFIG_32BIT
+	.long	0x53453f00 + 32	/* "SE?" = 32 bit */
+#else
+	.long	0x53453f00 + 29	/* "SE?" = 29 bit */
+#endif
 1:
 	.skip	PAGE_SIZE - empty_zero_page - 1b
 
-- 
cgit v1.2.3-59-g8ed1b


From eddeeb32fe303910c58c4e3c27fde4b6f1503350 Mon Sep 17 00:00:00 2001
From: Stuart Menefy <stuart.menefy@st.com>
Date: Mon, 26 Nov 2007 21:32:40 +0900
Subject: sh: Invalidate the TLB after applying PMB mappings.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/pmb.c                     | 6 ++++++
 include/asm-sh/cpu-sh4/mmu_context.h | 2 ++
 2 files changed, 8 insertions(+)

(limited to 'arch')

diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c
index 1d45b82f0a63..b632051d6ce5 100644
--- a/arch/sh/mm/pmb.c
+++ b/arch/sh/mm/pmb.c
@@ -27,6 +27,7 @@
 #include <asm/pgtable.h>
 #include <asm/mmu.h>
 #include <asm/io.h>
+#include <asm/mmu_context.h>
 
 #define NR_PMB_ENTRIES	16
 
@@ -329,6 +330,11 @@ static int __init pmb_init(void)
 	/* PMB.SE and UB[7] */
 	ctrl_outl((1 << 31) | (1 << 7), PMB_PASCR);
 
+	/* Flush out the TLB */
+	i =  ctrl_inl(MMUCR);
+	i |= MMUCR_TI;
+	ctrl_outl(i, MMUCR);
+
 	back_to_P1();
 
 	return 0;
diff --git a/include/asm-sh/cpu-sh4/mmu_context.h b/include/asm-sh/cpu-sh4/mmu_context.h
index 979acddc0f8e..fdd56e3e3a3b 100644
--- a/include/asm-sh/cpu-sh4/mmu_context.h
+++ b/include/asm-sh/cpu-sh4/mmu_context.h
@@ -22,6 +22,8 @@
 #define MMU_UTLB_ADDRESS_ARRAY	0xF6000000
 #define MMU_PAGE_ASSOC_BIT	0x80
 
+#define MMUCR_TI		(1<<2)
+
 #ifdef CONFIG_X2TLB
 #define MMUCR_ME		(1 << 7)
 #else
-- 
cgit v1.2.3-59-g8ed1b


From 4b27c47cf8eddb4153a026e89c7b092598c98b12 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 28 Nov 2007 19:58:11 +0900
Subject: sh: syscall auditing for sh5, too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/sh5/entry.S | 10 ++++++----
 arch/sh/kernel/ptrace_64.c     | 38 ++++++++++++++++++++++++--------------
 2 files changed, 30 insertions(+), 18 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S
index 0f65bb4372da..dbf2d7684502 100644
--- a/arch/sh/kernel/cpu/sh5/entry.S
+++ b/arch/sh/kernel/cpu/sh5/entry.S
@@ -942,9 +942,6 @@ ret_with_reschedule:
 	getcon	KCR0, r6		! r6 contains current_thread_info
 	ld.l	r6, TI_FLAGS, r7	! r7 contains current_thread_info->flags
 
-	! FIXME:!!!
-	! no handling of TIF_SYSCALL_TRACE yet!!
-
 	movi	_TIF_NEED_RESCHED, r8
 	and	r8, r7, r8
 	pta	work_resched, tr0
@@ -1280,14 +1277,17 @@ syscall_allowed:
 
 	getcon	KCR0, r2
 	ld.l	r2, TI_FLAGS, r4
-	movi	(1 << TIF_SYSCALL_TRACE), r6
+	movi	(_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_SYSCALL_AUDIT), r6
 	and	r6, r4, r6
 	beq/l	r6, ZERO, tr0
 
 	/* Trace it by calling syscall_trace before and after */
 	movi	syscall_trace, r4
+	or	SP, ZERO, r2
+	or	ZERO, ZERO, r3
 	ptabs	r4, tr0
 	blink	tr0, LINK
+
 	/* Reload syscall number as r5 is trashed by syscall_trace */
 	ld.q	SP, FRAME_S(FSYSCALL_ID), r5
 	andi	r5, 0x1ff, r5
@@ -1321,6 +1321,8 @@ syscall_ret_trace:
 	st.q	SP, FRAME_R(9), r2	/* Save return value */
 
 	movi	syscall_trace, LINK
+	or	SP, ZERO, r2
+	movi	1, r3
 	ptabs	LINK, tr0
 	blink	tr0, LINK
 
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index e9cc6ebd2cea..f6fbdfa6876d 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -1,12 +1,8 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/ptrace.c
+ * arch/sh/kernel/ptrace_64.c
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2003  Paul Mundt
+ * Copyright (C) 2003 - 2007  Paul Mundt
  *
  * Started from SH3/4 version:
  *   SuperH version:   Copyright (C) 1999, 2000  Kaz Kojima & Niibe Yutaka
@@ -15,8 +11,10 @@
  *	By Ross Biro 1/23/92
  *	edited by Linus Torvalds
  *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
-
 #include <linux/kernel.h>
 #include <linux/rwsem.h>
 #include <linux/sched.h>
@@ -28,7 +26,7 @@
 #include <linux/user.h>
 #include <linux/signal.h>
 #include <linux/syscalls.h>
-
+#include <linux/audit.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -274,17 +272,23 @@ asmlinkage int sh64_ptrace(long request, long pid, long addr, long data)
 	return sys_ptrace(request, pid, addr, data);
 }
 
-asmlinkage void syscall_trace(void)
+asmlinkage void syscall_trace(struct pt_regs *regs, int entryexit)
 {
 	struct task_struct *tsk = current;
 
-	if (!test_thread_flag(TIF_SYSCALL_TRACE))
-		return;
+	if (unlikely(current->audit_context) && entryexit)
+		audit_syscall_exit(AUDITSC_RESULT(regs->regs[9]),
+				   regs->regs[9]);
+
+	if (!test_thread_flag(TIF_SYSCALL_TRACE) &&
+	    !test_thread_flag(TIF_SINGLESTEP))
+		goto out;
 	if (!(tsk->ptrace & PT_PTRACED))
-		return;
+		goto out;
+
+	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) &&
+				!test_thread_flag(TIF_SINGLESTEP) ? 0x80 : 0));
 
-	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-				 ? 0x80 : 0));
 	/*
 	 * this isn't the same as continuing with a signal, but it will do
 	 * for normal use.  strace only continues with a signal if the
@@ -294,6 +298,12 @@ asmlinkage void syscall_trace(void)
 		send_sig(tsk->exit_code, tsk, 1);
 		tsk->exit_code = 0;
 	}
+
+out:
+	if (unlikely(current->audit_context) && !entryexit)
+		audit_syscall_entry(AUDIT_ARCH_SH, regs->regs[1],
+				    regs->regs[2], regs->regs[3],
+				    regs->regs[4], regs->regs[5]);
 }
 
 /* Called with interrupts disabled */
-- 
cgit v1.2.3-59-g8ed1b


From a23ba43573a24c351640bc19c06c701798fe6e25 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 28 Nov 2007 20:19:38 +0900
Subject: sh: comment tidying for sh64->sh migration.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/cayman/led.c         |  2 +-
 arch/sh/boot/compressed/Makefile_64 | 10 +++++-----
 arch/sh/boot/compressed/misc_64.c   |  2 +-
 arch/sh/kernel/cpu/irq/intc-sh5.c   | 10 +++++-----
 arch/sh/kernel/cpu/sh5/entry.S      | 13 ++++++-------
 arch/sh/kernel/cpu/sh5/fpu.c        | 10 ++++------
 arch/sh/kernel/cpu/sh5/switchto.S   |  2 +-
 arch/sh/kernel/cpu/sh5/unwind.c     |  2 +-
 arch/sh/kernel/head_64.S            | 19 ++++---------------
 arch/sh/kernel/process_64.c         | 29 ++++++++++++++++-------------
 arch/sh/kernel/sh_ksyms_64.c        |  9 ++++-----
 arch/sh/kernel/signal_64.c          | 11 ++++-------
 arch/sh/kernel/syscalls_64.S        |  2 +-
 arch/sh/kernel/time_64.c            | 10 +++++-----
 arch/sh/kernel/traps_64.c           | 14 ++++----------
 arch/sh/lib64/c-checksum.c          |  5 +----
 arch/sh/lib64/dbg.c                 |  2 +-
 arch/sh/lib64/udelay.c              |  2 +-
 arch/sh/mm/cache-sh5.c              | 15 ++++++---------
 arch/sh/mm/extable_64.c             | 28 +++++++++++++++-------------
 arch/sh/mm/tlb-sh5.c                |  4 +---
 include/asm-sh/checksum_64.h        | 16 +++++++---------
 include/asm-sh/cpu-sh5/cache.h      | 15 +++++++--------
 include/asm-sh/cpu-sh5/cacheflush.h |  6 +++---
 include/asm-sh/cpu-sh5/irq.h        | 15 +++++++--------
 include/asm-sh/cpu-sh5/registers.h  | 16 ++++++++--------
 include/asm-sh/pgtable_64.h         | 19 +++++++++----------
 include/asm-sh/string_64.h          | 18 +++++++-----------
 include/asm-sh/uaccess_64.h         | 16 +++++++---------
 include/asm-sh/unistd_64.h          | 18 ++++++++----------
 30 files changed, 150 insertions(+), 190 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/boards/cayman/led.c b/arch/sh/boards/cayman/led.c
index b4e122fd9502..a808eac4ecd6 100644
--- a/arch/sh/boards/cayman/led.c
+++ b/arch/sh/boards/cayman/led.c
@@ -1,5 +1,5 @@
 /*
- * arch/sh64/mach-cayman/led.c
+ * arch/sh/boards/cayman/led.c
  *
  * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
  *
diff --git a/arch/sh/boot/compressed/Makefile_64 b/arch/sh/boot/compressed/Makefile_64
index 0b48ae99922b..4334f2b86d8f 100644
--- a/arch/sh/boot/compressed/Makefile_64
+++ b/arch/sh/boot/compressed/Makefile_64
@@ -1,14 +1,14 @@
 #
-# linux/arch/sh64/boot/compressed/Makefile
+# arch/sh/boot/compressed/Makefile_64
 #
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
+# create a compressed vmlinux image from the original vmlinux
 #
 # Copyright (C) 2002 Stuart Menefy
 # Copyright (C) 2004 Paul Mundt
 #
-# create a compressed vmlinux image from the original vmlinux
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
 #
 
 targets		:= vmlinux vmlinux.bin vmlinux.bin.gz \
diff --git a/arch/sh/boot/compressed/misc_64.c b/arch/sh/boot/compressed/misc_64.c
index aea00c53ce29..a006ef89b9dd 100644
--- a/arch/sh/boot/compressed/misc_64.c
+++ b/arch/sh/boot/compressed/misc_64.c
@@ -1,5 +1,5 @@
 /*
- * arch/sh64/boot/compressed/misc.c
+ * arch/sh/boot/compressed/misc_64.c
  *
  * This is a collection of several routines from gzip-1.0.3
  * adapted for Linux.
diff --git a/arch/sh/kernel/cpu/irq/intc-sh5.c b/arch/sh/kernel/cpu/irq/intc-sh5.c
index 49b845a31fff..43ee7a9a4f0b 100644
--- a/arch/sh/kernel/cpu/irq/intc-sh5.c
+++ b/arch/sh/kernel/cpu/irq/intc-sh5.c
@@ -1,18 +1,18 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
+ * arch/sh/kernel/cpu/irq/intc-sh5.c
  *
- * arch/sh64/kernel/irq_intc.c
+ * Interrupt Controller support for SH5 INTC.
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  * Copyright (C) 2003  Paul Mundt
  *
- * Interrupt Controller support for SH5 INTC.
  * Per-interrupt selective. IRLM=0 (Fixed priority) is not
  * supported being useless without a cascaded interrupt
  * controller.
  *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 #include <linux/init.h>
 #include <linux/interrupt.h>
diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S
index dbf2d7684502..ba8750176d91 100644
--- a/arch/sh/kernel/cpu/sh5/entry.S
+++ b/arch/sh/kernel/cpu/sh5/entry.S
@@ -1,14 +1,13 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/entry.S
+ * arch/sh/kernel/cpu/sh5/entry.S
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2004, 2005  Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
+ * Copyright (C) 2004 - 2007  Paul Mundt
+ * Copyright (C) 2003, 2004  Richard Curnow
  *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 #include <linux/errno.h>
 #include <linux/sys.h>
diff --git a/arch/sh/kernel/cpu/sh5/fpu.c b/arch/sh/kernel/cpu/sh5/fpu.c
index 5a391b1a00e2..30b76a94abf2 100644
--- a/arch/sh/kernel/cpu/sh5/fpu.c
+++ b/arch/sh/kernel/cpu/sh5/fpu.c
@@ -1,9 +1,5 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/fpu.c
+ * arch/sh/kernel/cpu/sh5/fpu.c
  *
  * Copyright (C) 2001  Manuela Cirronis, Paolo Alberelli
  * Copyright (C) 2002  STMicroelectronics Limited
@@ -12,8 +8,10 @@
  * Started from SH4 version:
  *   Copyright (C) 1999, 2000  Kaz Kojima & Niibe Yutaka
  *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
-
 #include <linux/sched.h>
 #include <linux/signal.h>
 #include <asm/processor.h>
diff --git a/arch/sh/kernel/cpu/sh5/switchto.S b/arch/sh/kernel/cpu/sh5/switchto.S
index 45b2d90eed7d..45c351b0f1ba 100644
--- a/arch/sh/kernel/cpu/sh5/switchto.S
+++ b/arch/sh/kernel/cpu/sh5/switchto.S
@@ -1,5 +1,5 @@
 /*
- * arch/sh64/kernel/switchto.S
+ * arch/sh/kernel/cpu/sh5/switchto.S
  *
  * sh64 context switch
  *
diff --git a/arch/sh/kernel/cpu/sh5/unwind.c b/arch/sh/kernel/cpu/sh5/unwind.c
index 1214c78e3584..119c20afd4e5 100644
--- a/arch/sh/kernel/cpu/sh5/unwind.c
+++ b/arch/sh/kernel/cpu/sh5/unwind.c
@@ -1,5 +1,5 @@
 /*
- * arch/sh64/kernel/unwind.c
+ * arch/sh/kernel/cpu/sh5/unwind.c
  *
  * Copyright (C) 2004  Paul Mundt
  * Copyright (C) 2004  Richard Curnow
diff --git a/arch/sh/kernel/head_64.S b/arch/sh/kernel/head_64.S
index d3479287b10a..f42d4c0feb76 100644
--- a/arch/sh/kernel/head_64.S
+++ b/arch/sh/kernel/head_64.S
@@ -1,23 +1,12 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/head.S
+ * arch/sh/kernel/head_64.S
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  * Copyright (C) 2003, 2004  Paul Mundt
  *
- *
- * benedict.gaster@superh.com:	 2nd May 2002
- *    Moved definition of empty_zero_page to its own section allowing
- *    it to be placed at an absolute address known at load time.
- *
- * lethal@linux-sh.org:          9th May 2003
- *    Kill off GLOBAL_NAME() usage.
- *
- * lethal@linux-sh.org:          8th May 2004
- *    Add early SCIF console DTLB mapping.
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 #include <asm/page.h>
 #include <asm/cache.h>
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index 973dd1a3d292..cff3b7dc9c56 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -421,19 +421,22 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
  */
 void exit_thread(void)
 {
-	/* See arch/sparc/kernel/process.c for the precedent for doing this -- RPC.
-
-	   The SH-5 FPU save/restore approach relies on last_task_used_math
-	   pointing to a live task_struct.  When another task tries to use the
-	   FPU for the 1st time, the FPUDIS trap handling (see
-	   arch/sh64/kernel/fpu.c) will save the existing FPU state to the
-	   FP regs field within last_task_used_math before re-loading the new
-	   task's FPU state (or initialising it if the FPU has been used
-	   before).  So if last_task_used_math is stale, and its page has already been
-	   re-allocated for another use, the consequences are rather grim. Unless we
-	   null it here, there is no other path through which it would get safely
-	   nulled. */
-
+	/*
+	 * See arch/sparc/kernel/process.c for the precedent for doing
+	 * this -- RPC.
+	 *
+	 * The SH-5 FPU save/restore approach relies on
+	 * last_task_used_math pointing to a live task_struct.  When
+	 * another task tries to use the FPU for the 1st time, the FPUDIS
+	 * trap handling (see arch/sh/kernel/cpu/sh5/fpu.c) will save the
+	 * existing FPU state to the FP regs field within
+	 * last_task_used_math before re-loading the new task's FPU state
+	 * (or initialising it if the FPU has been used before).  So if
+	 * last_task_used_math is stale, and its page has already been
+	 * re-allocated for another use, the consequences are rather
+	 * grim. Unless we null it here, there is no other path through
+	 * which it would get safely nulled.
+	 */
 #ifdef CONFIG_SH_FPU
 	if (last_task_used_math == current) {
 		last_task_used_math = NULL;
diff --git a/arch/sh/kernel/sh_ksyms_64.c b/arch/sh/kernel/sh_ksyms_64.c
index fbc991c33f5a..8004c38d3d37 100644
--- a/arch/sh/kernel/sh_ksyms_64.c
+++ b/arch/sh/kernel/sh_ksyms_64.c
@@ -1,12 +1,11 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/sh_ksyms.c
+ * arch/sh/kernel/sh_ksyms_64.c
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 #include <linux/rwsem.h>
 #include <linux/module.h>
diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c
index 922891960c33..80bde19d445b 100644
--- a/arch/sh/kernel/signal_64.c
+++ b/arch/sh/kernel/signal_64.c
@@ -1,16 +1,13 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/signal.c
+ * arch/sh/kernel/signal_64.c
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  * Copyright (C) 2003  Paul Mundt
  * Copyright (C) 2004  Richard Curnow
  *
- * Started from sh version.
- *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 #include <linux/rwsem.h>
 #include <linux/sched.h>
diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S
index abb94c05d07a..98a93efe3691 100644
--- a/arch/sh/kernel/syscalls_64.S
+++ b/arch/sh/kernel/syscalls_64.S
@@ -1,5 +1,5 @@
 /*
- * arch/sh64/kernel/syscalls.S
+ * arch/sh/kernel/syscalls_64.S
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  * Copyright (C) 2004 - 2007  Paul Mundt
diff --git a/arch/sh/kernel/time_64.c b/arch/sh/kernel/time_64.c
index 81003af8115a..f819ba38a6ce 100644
--- a/arch/sh/kernel/time_64.c
+++ b/arch/sh/kernel/time_64.c
@@ -1,9 +1,5 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/time.c
+ * arch/sh/kernel/time_64.c
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  * Copyright (C) 2003 - 2007  Paul Mundt
@@ -13,6 +9,10 @@
  *    Copyright (C) 1999  Tetsuya Okada & Niibe Yutaka
  *      Some code taken from i386 version.
  *      Copyright (C) 1991, 1992, 1995  Linus Torvalds
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 #include <linux/errno.h>
 #include <linux/rwsem.h>
diff --git a/arch/sh/kernel/traps_64.c b/arch/sh/kernel/traps_64.c
index b8020f26b635..c0b3c6f6edb5 100644
--- a/arch/sh/kernel/traps_64.c
+++ b/arch/sh/kernel/traps_64.c
@@ -1,19 +1,13 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/traps.c
+ * arch/sh/kernel/traps_64.c
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  * Copyright (C) 2003, 2004  Paul Mundt
  * Copyright (C) 2003, 2004  Richard Curnow
  *
- */
-
-/*
- * 'Traps.c' handles hardware traps and faults after we have saved some
- * state in 'entry.S'.
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 #include <linux/sched.h>
 #include <linux/kernel.h>
diff --git a/arch/sh/lib64/c-checksum.c b/arch/sh/lib64/c-checksum.c
index 053137abd8a0..5dfbd8b5e558 100644
--- a/arch/sh/lib64/c-checksum.c
+++ b/arch/sh/lib64/c-checksum.c
@@ -1,12 +1,9 @@
 /*
- * arch/sh64/lib/c-checksum.c
+ * arch/sh/lib64/c-checksum.c
  *
  * This file contains network checksum routines that are better done
  * in an architecture-specific manner due to speed..
  */
-
-#undef DEBUG
-
 #include <linux/string.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
diff --git a/arch/sh/lib64/dbg.c b/arch/sh/lib64/dbg.c
index 97816e0baf19..75825ef6e084 100644
--- a/arch/sh/lib64/dbg.c
+++ b/arch/sh/lib64/dbg.c
@@ -2,7 +2,7 @@
 --
 -- Identity : Linux50 Debug Funcions
 --
--- File     : arch/sh64/lib/dbg.C
+-- File     : arch/sh/lib64/dbg.c
 --
 -- Copyright 2000, 2001 STMicroelectronics Limited.
 -- Copyright 2004 Richard Curnow (evt_debug etc)
diff --git a/arch/sh/lib64/udelay.c b/arch/sh/lib64/udelay.c
index 4c71a7428e60..23c7d17fb9f7 100644
--- a/arch/sh/lib64/udelay.c
+++ b/arch/sh/lib64/udelay.c
@@ -1,5 +1,5 @@
 /*
- * arch/sh64/lib/udelay.c
+ * arch/sh/lib64/udelay.c
  *
  * Delay routines, using a pre-computed "loops_per_jiffy" value.
  *
diff --git a/arch/sh/mm/cache-sh5.c b/arch/sh/mm/cache-sh5.c
index 421487cfff4c..4617e3aeee73 100644
--- a/arch/sh/mm/cache-sh5.c
+++ b/arch/sh/mm/cache-sh5.c
@@ -1,18 +1,15 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/cache.c
+ * arch/sh/mm/cache-sh5.c
  *
  * Original version Copyright (C) 2000, 2001  Paolo Alberelli
  * Second version Copyright (C) benedict.gaster@superh.com 2002
  * Third version Copyright Richard.Curnow@superh.com 2003
  * Hacks to third version Copyright (C) 2003 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
-
-/****************************************************************************/
-
 #include <linux/init.h>
 #include <linux/mman.h>
 #include <linux/mm.h>
@@ -146,7 +143,7 @@ int __init sh64_cache_init(void)
 /* The following group of functions deal with mapping and unmapping a temporary
    page into the DTLB slot that have been set aside for our exclusive use. */
 /* In order to accomplish this, we use the generic interface for adding and
-   removing a wired slot entry as defined in arch/sh64/mm/tlb.c */
+   removing a wired slot entry as defined in arch/sh/mm/tlb-sh5.c */
 /****************************************************************************/
 
 static unsigned long slot_own_flags;
diff --git a/arch/sh/mm/extable_64.c b/arch/sh/mm/extable_64.c
index a2e6e0563772..f05499688d88 100644
--- a/arch/sh/mm/extable_64.c
+++ b/arch/sh/mm/extable_64.c
@@ -1,14 +1,14 @@
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/extable.c
+ * arch/sh/mm/extable_64.c
  *
  * Copyright (C) 2003 Richard Curnow
  * Copyright (C) 2003, 2004  Paul Mundt
  *
  * Cloned from the 2.5 SH version..
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 #include <linux/rwsem.h>
 #include <linux/module.h>
@@ -21,13 +21,16 @@ static const struct exception_table_entry __copy_user_fixup_ex = {
 	.fixup = (unsigned long)&__copy_user_fixup,
 };
 
-/* Some functions that may trap due to a bad user-mode address have too many loads
-   and stores in them to make it at all practical to label each one and put them all in
-   the main exception table.
-
-   In particular, the fast memcpy routine is like this.  It's fix-up is just to fall back
-   to a slow byte-at-a-time copy, which is handled the conventional way.  So it's functionally
-   OK to just handle any trap occurring in the fast memcpy with that fixup. */
+/*
+ * Some functions that may trap due to a bad user-mode address have too
+ * many loads and stores in them to make it at all practical to label
+ * each one and put them all in the main exception table.
+ *
+ * In particular, the fast memcpy routine is like this.  It's fix-up is
+ * just to fall back to a slow byte-at-a-time copy, which is handled the
+ * conventional way.  So it's functionally OK to just handle any trap
+ * occurring in the fast memcpy with that fixup.
+ */
 static const struct exception_table_entry *check_exception_ranges(unsigned long addr)
 {
 	if ((addr >= (unsigned long)&copy_user_memcpy) &&
@@ -77,4 +80,3 @@ int fixup_exception(struct pt_regs *regs)
 
 	return 0;
 }
-
diff --git a/arch/sh/mm/tlb-sh5.c b/arch/sh/mm/tlb-sh5.c
index d517e7d70340..f34274a1ded3 100644
--- a/arch/sh/mm/tlb-sh5.c
+++ b/arch/sh/mm/tlb-sh5.c
@@ -1,5 +1,5 @@
 /*
- * arch/sh64/mm/tlb.c
+ * arch/sh/mm/tlb-sh5.c
  *
  * Copyright (C) 2003  Paul Mundt <lethal@linux-sh.org>
  * Copyright (C) 2003  Richard Curnow <richard.curnow@superh.com>
@@ -7,7 +7,6 @@
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
- *
  */
 #include <linux/mm.h>
 #include <linux/init.h>
@@ -163,4 +162,3 @@ inline void sh64_setup_tlb_slot(unsigned long long config_addr,
  */
 inline void sh64_teardown_tlb_slot(unsigned long long config_addr)
 	__attribute__ ((alias("__flush_tlb_slot")));
-
diff --git a/include/asm-sh/checksum_64.h b/include/asm-sh/checksum_64.h
index ec79b92e6bdc..9c62a031a8f5 100644
--- a/include/asm-sh/checksum_64.h
+++ b/include/asm-sh/checksum_64.h
@@ -1,15 +1,14 @@
-#ifndef __ASM_SH64_CHECKSUM_H
-#define __ASM_SH64_CHECKSUM_H
+#ifndef __ASM_SH_CHECKSUM_64_H
+#define __ASM_SH_CHECKSUM_64_H
 
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/checksum.h
+ * include/asm-sh/checksum_64.h
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 
 /*
@@ -76,5 +75,4 @@ static inline __sum16 ip_compute_csum(const void *buff, int len)
 	return csum_fold(csum_partial(buff, len, 0));
 }
 
-#endif /* __ASM_SH64_CHECKSUM_H */
-
+#endif /* __ASM_SH_CHECKSUM_64_H */
diff --git a/include/asm-sh/cpu-sh5/cache.h b/include/asm-sh/cpu-sh5/cache.h
index 7eaa8894649f..ed050ab526f2 100644
--- a/include/asm-sh/cpu-sh5/cache.h
+++ b/include/asm-sh/cpu-sh5/cache.h
@@ -1,16 +1,15 @@
-#ifndef __ASM_SH64_CACHE_H
-#define __ASM_SH64_CACHE_H
+#ifndef __ASM_SH_CPU_SH5_CACHE_H
+#define __ASM_SH_CPU_SH5_CACHE_H
 
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/cache.h
+ * include/asm-sh/cpu-sh5/cache.h
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  * Copyright (C) 2003, 2004  Paul Mundt
  *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 
 #define L1_CACHE_SHIFT		5
@@ -95,4 +94,4 @@
  * No Instruction Cache defines required, then.
  */
 
-#endif /* __ASM_SH64_CACHE_H */
+#endif /* __ASM_SH_CPU_SH5_CACHE_H */
diff --git a/include/asm-sh/cpu-sh5/cacheflush.h b/include/asm-sh/cpu-sh5/cacheflush.h
index 45d12d6f89c2..98edb5b1da32 100644
--- a/include/asm-sh/cpu-sh5/cacheflush.h
+++ b/include/asm-sh/cpu-sh5/cacheflush.h
@@ -1,5 +1,5 @@
-#ifndef __ASM_SH64_CACHEFLUSH_H
-#define __ASM_SH64_CACHEFLUSH_H
+#ifndef __ASM_SH_CPU_SH5_CACHEFLUSH_H
+#define __ASM_SH_CPU_SH5_CACHEFLUSH_H
 
 #ifndef __ASSEMBLY__
 
@@ -31,5 +31,5 @@ extern void flush_icache_user_range(struct vm_area_struct *vma,
 
 #endif /* __ASSEMBLY__ */
 
-#endif /* __ASM_SH64_CACHEFLUSH_H */
+#endif /* __ASM_SH_CPU_SH5_CACHEFLUSH_H */
 
diff --git a/include/asm-sh/cpu-sh5/irq.h b/include/asm-sh/cpu-sh5/irq.h
index f539baec8529..f0f0756e6e84 100644
--- a/include/asm-sh/cpu-sh5/irq.h
+++ b/include/asm-sh/cpu-sh5/irq.h
@@ -1,15 +1,14 @@
-#ifndef __ASM_SH64_IRQ_H
-#define __ASM_SH64_IRQ_H
+#ifndef __ASM_SH_CPU_SH5_IRQ_H
+#define __ASM_SH_CPU_SH5_IRQ_H
 
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/irq.h
+ * include/asm-sh/cpu-sh5/irq.h
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 
 
@@ -115,4 +114,4 @@ extern int intc_evt_to_irq[(0xE20/0x20)+1];
 int intc_irq_describe(char* p, int irq);
 extern int platform_int_priority[NR_INTC_IRQS];
 
-#endif /* __ASM_SH64_IRQ_H */
+#endif /* __ASM_SH_CPU_SH5_IRQ_H */
diff --git a/include/asm-sh/cpu-sh5/registers.h b/include/asm-sh/cpu-sh5/registers.h
index 7eec666acf84..6664ea6f1566 100644
--- a/include/asm-sh/cpu-sh5/registers.h
+++ b/include/asm-sh/cpu-sh5/registers.h
@@ -1,15 +1,15 @@
-#ifndef __ASM_SH64_REGISTERS_H
-#define __ASM_SH64_REGISTERS_H
+#ifndef __ASM_SH_CPU_SH5_REGISTERS_H
+#define __ASM_SH_CPU_SH5_REGISTERS_H
 
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/registers.h
+ * include/asm-sh/cpu-sh5/registers.h
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  * Copyright (C) 2004  Richard Curnow
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 
 #ifdef __ASSEMBLY__
@@ -103,4 +103,4 @@
 #define __USR __str(USR)
 
 #endif /* __ASSEMBLY__ */
-#endif /* __ASM_SH64_REGISTERS_H */
+#endif /* __ASM_SH_CPU_SH5_REGISTERS_H */
diff --git a/include/asm-sh/pgtable_64.h b/include/asm-sh/pgtable_64.h
index d422111006f4..972211671c9a 100644
--- a/include/asm-sh/pgtable_64.h
+++ b/include/asm-sh/pgtable_64.h
@@ -1,21 +1,20 @@
-#ifndef __ASM_SH64_PGTABLE_H
-#define __ASM_SH64_PGTABLE_H
+#ifndef __ASM_SH_PGTABLE_64_H
+#define __ASM_SH_PGTABLE_64_H
 
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
+ * include/asm-sh/pgtable_64.h
  *
- * include/asm-sh64/pgtable.h
+ * This file contains the functions and defines necessary to modify and use
+ * the SuperH page table tree.
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  * Copyright (C) 2003, 2004  Paul Mundt
  * Copyright (C) 2003, 2004  Richard Curnow
  *
- * This file contains the functions and defines necessary to modify and use
- * the SuperH page table tree.
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
-
 #include <linux/threads.h>
 #include <asm/processor.h>
 #include <asm/page.h>
@@ -297,4 +296,4 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 #define pfn_pte(pfn, prot)	__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
 #define pfn_pmd(pfn, prot)	__pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
 
-#endif /* __ASM_SH64_PGTABLE_H */
+#endif /* __ASM_SH_PGTABLE_64_H */
diff --git a/include/asm-sh/string_64.h b/include/asm-sh/string_64.h
index 8a7357366ce8..aa1fef229c78 100644
--- a/include/asm-sh/string_64.h
+++ b/include/asm-sh/string_64.h
@@ -1,21 +1,17 @@
-#ifndef __ASM_SH64_STRING_H
-#define __ASM_SH64_STRING_H
+#ifndef __ASM_SH_STRING_64_H
+#define __ASM_SH_STRING_64_H
 
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/string.h
+ * include/asm-sh/string_64.h
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  *
- * Empty on purpose. ARCH SH64 ASM libs are out of the current project scope.
- *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 
 #define __HAVE_ARCH_MEMCPY
-
 extern void *memcpy(void *dest, const void *src, size_t count);
 
-#endif
+#endif /* __ASM_SH_STRING_64_H */
diff --git a/include/asm-sh/uaccess_64.h b/include/asm-sh/uaccess_64.h
index 24800a8045ce..d54ec082d25a 100644
--- a/include/asm-sh/uaccess_64.h
+++ b/include/asm-sh/uaccess_64.h
@@ -1,12 +1,8 @@
-#ifndef __ASM_SH64_UACCESS_H
-#define __ASM_SH64_UACCESS_H
+#ifndef __ASM_SH_UACCESS_64_H
+#define __ASM_SH_UACCESS_64_H
 
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/uaccess.h
+ * include/asm-sh/uaccess_64.h
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  * Copyright (C) 2003, 2004  Paul Mundt
@@ -20,8 +16,10 @@
  *              Copyright (C) 1996, 1997, 1998 by Ralf Baechle
  *     and i386 version.
  *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
-
 #include <linux/errno.h>
 #include <linux/sched.h>
 
@@ -301,4 +299,4 @@ struct exception_table_entry
 extern unsigned long search_exception_table(unsigned long addr);
 extern const struct exception_table_entry *search_exception_tables (unsigned long addr);
 
-#endif /* __ASM_SH64_UACCESS_H */
+#endif /* __ASM_SH_UACCESS_64_H */
diff --git a/include/asm-sh/unistd_64.h b/include/asm-sh/unistd_64.h
index 1a5197f369b2..944511882cac 100644
--- a/include/asm-sh/unistd_64.h
+++ b/include/asm-sh/unistd_64.h
@@ -1,21 +1,19 @@
-#ifndef __ASM_SH64_UNISTD_H
-#define __ASM_SH64_UNISTD_H
+#ifndef __ASM_SH_UNISTD_64_H
+#define __ASM_SH_UNISTD_64_H
 
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
+ * include/asm-sh/unistd_64.h
  *
- * include/asm-sh64/unistd.h
+ * This file contains the system call numbers.
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  * Copyright (C) 2003 - 2007 Paul Mundt
  * Copyright (C) 2004  Sean McGoogan
  *
- * This file contains the system call numbers.
- *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
-
 #define __NR_restart_syscall	  0
 #define __NR_exit		  1
 #define __NR_fork		  2
@@ -414,4 +412,4 @@
 #endif
 
 #endif /* __KERNEL__ */
-#endif /* __ASM_SH64_UNISTD_H */
+#endif /* __ASM_SH_UNISTD_64_H */
-- 
cgit v1.2.3-59-g8ed1b


From 53ff09422e5e7a6d6198b767c8f494e43ec8e3ae Mon Sep 17 00:00:00 2001
From: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Date: Fri, 30 Nov 2007 12:33:17 +0900
Subject: sh: Fix compile error of arch/sh/mm/pmb.c

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/pmb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c
index b632051d6ce5..ef6ab39eaf65 100644
--- a/arch/sh/mm/pmb.c
+++ b/arch/sh/mm/pmb.c
@@ -305,7 +305,7 @@ static void pmb_cache_ctor(struct kmem_cache *cachep, void *pmb)
 static int __init pmb_init(void)
 {
 	unsigned int nr_entries = ARRAY_SIZE(pmb_init_map);
-	unsigned int entry;
+	unsigned int entry, i;
 
 	BUG_ON(unlikely(nr_entries >= NR_PMB_ENTRIES));
 
-- 
cgit v1.2.3-59-g8ed1b


From 1efe4ce3ca126da77e450d5a83f7201949d76f62 Mon Sep 17 00:00:00 2001
From: Stuart Menefy <stuart.menefy@st.com>
Date: Fri, 30 Nov 2007 16:12:36 +0900
Subject: sh: GUSA atomic rollback support.

This implements kernel-level atomic rollback built on top of gUSA,
as an alternative non-IRQ based atomicity method. This is generally
a faster method for platforms that are lacking the LL/SC pairs that
SH-4A and later use, and is only supportable on legacy cores.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig                |  12 ++-
 arch/sh/kernel/cpu/sh3/entry.S |  24 +++++-
 arch/sh/kernel/entry-common.S  |  19 -----
 arch/sh/kernel/process_32.c    |  19 -----
 arch/sh/kernel/signal_32.c     |  18 -----
 include/asm-sh/atomic-grb.h    | 169 +++++++++++++++++++++++++++++++++++++++++
 include/asm-sh/atomic.h        |  10 ++-
 include/asm-sh/bitops-grb.h    | 169 +++++++++++++++++++++++++++++++++++++++++
 include/asm-sh/bitops-irq.h    |  91 ++++++++++++++++++++++
 include/asm-sh/bitops.h        |  91 ++--------------------
 include/asm-sh/cmpxchg-grb.h   |  70 +++++++++++++++++
 include/asm-sh/cmpxchg-irq.h   |  40 ++++++++++
 include/asm-sh/system.h        |  40 ++--------
 13 files changed, 591 insertions(+), 181 deletions(-)
 create mode 100644 include/asm-sh/atomic-grb.h
 create mode 100644 include/asm-sh/bitops-grb.h
 create mode 100644 include/asm-sh/bitops-irq.h
 create mode 100644 include/asm-sh/cmpxchg-grb.h
 create mode 100644 include/asm-sh/cmpxchg-irq.h

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 2dc3b177193c..f645f8416f1c 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -692,7 +692,7 @@ source "kernel/Kconfig.preempt"
 
 config GUSA
 	def_bool y
-	depends on !SMP
+	depends on !SMP && SUPERH32
 	help
 	  This enables support for gUSA (general UserSpace Atomicity).
 	  This is the default implementation for both UP and non-ll/sc
@@ -704,6 +704,16 @@ config GUSA
 	  This should only be disabled for special cases where alternate
 	  atomicity implementations exist.
 
+config GUSA_RB
+	bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
+	depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
+	help
+	  Enabling this option will allow the kernel to implement some
+	  atomic operations using a software implemention of load-locked/
+	  store-conditional (LLSC). On machines which do not have hardware
+	  LLSC, this should be more efficient than the other alternative of
+	  disabling insterrupts around the atomic sequence.
+
 endmenu
 
 menu "Boot options"
diff --git a/arch/sh/kernel/cpu/sh3/entry.S b/arch/sh/kernel/cpu/sh3/entry.S
index 0d12a124055c..4004073f98cd 100644
--- a/arch/sh/kernel/cpu/sh3/entry.S
+++ b/arch/sh/kernel/cpu/sh3/entry.S
@@ -13,8 +13,9 @@
 #include <linux/linkage.h>
 #include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
-#include <asm/cpu/mmu_context.h>
 #include <asm/unistd.h>
+#include <asm/cpu/mmu_context.h>
+#include <asm/page.h>
 
 ! NOTE:
 ! GNU as (as of 2.9.1) changes bf/s into bt/s and bra, when the address
@@ -409,6 +410,27 @@ ENTRY(handle_exception)
 	! Using k0, k1 for scratch registers (r0_bank1, r1_bank),
 	! save all registers onto stack.
 	!
+
+#ifdef CONFIG_GUSA
+	! Check for roll back gRB (User and Kernel)
+	mov	r15, k0
+	shll	k0
+	bf/s	1f
+	 shll	k0
+	bf/s	1f
+	 stc	spc, k1
+	stc	r0_bank, k0
+	cmp/hs	k0, k1		! test k1 (saved PC) >= k0 (saved r0)
+	bt/s	2f
+	 stc	r1_bank, k1
+
+	add	#-2, k0
+	add	r15, k0
+	ldc	k0, spc		! PC = saved r0 + r15 - 2
+2:	mov	k1, r15		! SP = r1
+1:
+#endif
+
 	stc	ssr, k0		! Is it from kernel space?
 	shll	k0		! Check MD bit (bit30) by shifting it into...
 	shll	k0		!       ...the T bit
diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S
index 397ac71d97f1..926b2e7b11c1 100644
--- a/arch/sh/kernel/entry-common.S
+++ b/arch/sh/kernel/entry-common.S
@@ -176,25 +176,6 @@ work_notifysig:
 	jmp	@r1
 	 lds	r0, pr
 work_resched:
-#if defined(CONFIG_GUSA) && !defined(CONFIG_PREEMPT)
-	! gUSA handling
-	mov.l	@(OFF_SP,r15), r0	! get user space stack pointer
-	mov	r0, r1
-	shll	r0
-	bf/s	1f
-	 shll	r0
-	bf/s	1f
-	 mov	#OFF_PC, r0
-	! 				  SP >= 0xc0000000 : gUSA mark
-	mov.l	@(r0,r15), r2		! get user space PC (program counter)
-	mov.l	@(OFF_R0,r15), r3	! end point
-	cmp/hs	r3, r2			! r2 >= r3? 
-	bt	1f
-	add	r3, r1			! rewind point #2
-	mov.l	r1, @(r0,r15)		! reset PC to rewind point #2
-	!
-1:
-#endif
 	mov.l	1f, r1
 	jsr	@r1				! schedule
 	 nop
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index b48324867eee..9ab1926b9d10 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -322,25 +322,6 @@ struct task_struct *__switch_to(struct task_struct *prev,
 	unlazy_fpu(prev, task_pt_regs(prev));
 #endif
 
-#if defined(CONFIG_GUSA) && defined(CONFIG_PREEMPT)
-	{
-		struct pt_regs *regs;
-
-		preempt_disable();
-		regs = task_pt_regs(prev);
-		if (user_mode(regs) && regs->regs[15] >= 0xc0000000) {
-			int offset = (int)regs->regs[15];
-
-			/* Reset stack pointer: clear critical region mark */
-			regs->regs[15] = regs->regs[1];
-			if (regs->pc < regs->regs[0])
-				/* Go to rewind point */
-				regs->pc = regs->regs[0] + offset;
-		}
-		preempt_enable_no_resched();
-	}
-#endif
-
 #ifdef CONFIG_MMU
 	/*
 	 * Restore the kernel mode register
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
index ca754fd42437..f6b5fbfe75c4 100644
--- a/arch/sh/kernel/signal_32.c
+++ b/arch/sh/kernel/signal_32.c
@@ -507,24 +507,6 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
 						ctrl_inw(regs->pc - 4));
 				break;
 		}
-#ifdef CONFIG_GUSA
-	} else {
-		/* gUSA handling */
-		preempt_disable();
-
-		if (regs->regs[15] >= 0xc0000000) {
-			int offset = (int)regs->regs[15];
-
-			/* Reset stack pointer: clear critical region mark */
-			regs->regs[15] = regs->regs[1];
-			if (regs->pc < regs->regs[0])
-				/* Go to rewind point #1 */
-				regs->pc = regs->regs[0] + offset -
-					instruction_size(ctrl_inw(regs->pc-4));
-		}
-
-		preempt_enable_no_resched();
-#endif
 	}
 
 	/* Set up the stack frame */
diff --git a/include/asm-sh/atomic-grb.h b/include/asm-sh/atomic-grb.h
new file mode 100644
index 000000000000..4c5b7dbfcedb
--- /dev/null
+++ b/include/asm-sh/atomic-grb.h
@@ -0,0 +1,169 @@
+#ifndef __ASM_SH_ATOMIC_GRB_H
+#define __ASM_SH_ATOMIC_GRB_H
+
+static inline void atomic_add(int i, atomic_t *v)
+{
+	int tmp;
+
+	__asm__ __volatile__ (
+		"   .align 2              \n\t"
+		"   mova    1f,   r0      \n\t" /* r0 = end point */
+		"   mov    r15,   r1      \n\t" /* r1 = saved sp */
+		"   mov    #-6,   r15     \n\t" /* LOGIN: r15 = size */
+		"   mov.l  @%1,   %0      \n\t" /* load  old value */
+		"   add     %2,   %0      \n\t" /* add */
+		"   mov.l   %0,   @%1     \n\t" /* store new value */
+		"1: mov     r1,   r15     \n\t" /* LOGOUT */
+		: "=&r" (tmp),
+		  "+r"  (v)
+		: "r"   (i)
+		: "memory" , "r0", "r1");
+}
+
+static inline void atomic_sub(int i, atomic_t *v)
+{
+	int tmp;
+
+	__asm__ __volatile__ (
+		"   .align 2              \n\t"
+		"   mova    1f,   r0      \n\t" /* r0 = end point */
+		"   mov     r15,  r1      \n\t" /* r1 = saved sp */
+		"   mov    #-6,   r15     \n\t" /* LOGIN: r15 = size */
+		"   mov.l  @%1,   %0      \n\t" /* load  old value */
+		"   sub     %2,   %0      \n\t" /* sub */
+		"   mov.l   %0,   @%1     \n\t" /* store new value */
+		"1: mov     r1,   r15     \n\t" /* LOGOUT */
+		: "=&r" (tmp),
+		  "+r"  (v)
+		: "r"   (i)
+		: "memory" , "r0", "r1");
+}
+
+static inline int atomic_add_return(int i, atomic_t *v)
+{
+	int tmp;
+
+	__asm__ __volatile__ (
+		"   .align 2              \n\t"
+		"   mova    1f,   r0      \n\t" /* r0 = end point */
+		"   mov    r15,   r1      \n\t" /* r1 = saved sp */
+		"   mov    #-6,   r15     \n\t" /* LOGIN: r15 = size */
+		"   mov.l  @%1,   %0      \n\t" /* load  old value */
+		"   add     %2,   %0      \n\t" /* add */
+		"   mov.l   %0,   @%1     \n\t" /* store new value */
+		"1: mov     r1,   r15     \n\t" /* LOGOUT */
+		: "=&r" (tmp),
+		  "+r"  (v)
+		: "r"   (i)
+		: "memory" , "r0", "r1");
+
+	return tmp;
+}
+
+static inline int atomic_sub_return(int i, atomic_t *v)
+{
+	int tmp;
+
+	__asm__ __volatile__ (
+		"   .align 2              \n\t"
+		"   mova    1f,   r0      \n\t" /* r0 = end point */
+		"   mov    r15,   r1      \n\t" /* r1 = saved sp */
+		"   mov    #-6,   r15     \n\t" /* LOGIN: r15 = size */
+		"   mov.l  @%1,   %0      \n\t" /* load  old value */
+		"   sub     %2,   %0      \n\t" /* sub */
+		"   mov.l   %0,   @%1     \n\t" /* store new value */
+		"1: mov     r1,   r15     \n\t" /* LOGOUT */
+		: "=&r" (tmp),
+		  "+r"  (v)
+		: "r"   (i)
+		: "memory", "r0", "r1");
+
+	return tmp;
+}
+
+static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
+{
+	int tmp;
+	unsigned int _mask = ~mask;
+
+	__asm__ __volatile__ (
+		"   .align 2              \n\t"
+		"   mova    1f,   r0      \n\t" /* r0 = end point */
+		"   mov    r15,   r1      \n\t" /* r1 = saved sp */
+		"   mov    #-6,   r15     \n\t" /* LOGIN: r15 = size */
+		"   mov.l  @%1,   %0      \n\t" /* load  old value */
+		"   and     %2,   %0      \n\t" /* add */
+		"   mov.l   %0,   @%1     \n\t" /* store new value */
+		"1: mov     r1,   r15     \n\t" /* LOGOUT */
+		: "=&r" (tmp),
+		  "+r"  (v)
+		: "r"   (_mask)
+		: "memory" , "r0", "r1");
+}
+
+static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
+{
+	int tmp;
+
+	__asm__ __volatile__ (
+		"   .align 2              \n\t"
+		"   mova    1f,   r0      \n\t" /* r0 = end point */
+		"   mov    r15,   r1      \n\t" /* r1 = saved sp */
+		"   mov    #-6,   r15     \n\t" /* LOGIN: r15 = size */
+		"   mov.l  @%1,   %0      \n\t" /* load  old value */
+		"   or      %2,   %0      \n\t" /* or */
+		"   mov.l   %0,   @%1     \n\t" /* store new value */
+		"1: mov     r1,   r15     \n\t" /* LOGOUT */
+		: "=&r" (tmp),
+		  "+r"  (v)
+		: "r"   (mask)
+		: "memory" , "r0", "r1");
+}
+
+static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
+{
+	int ret;
+
+	__asm__ __volatile__ (
+		"   .align 2		\n\t"
+		"   mova     1f,  r0	\n\t"
+		"   nop			\n\t"
+		"   mov     r15,  r1	\n\t"
+		"   mov    #-8,  r15	\n\t"
+		"   mov.l   @%1,  %0	\n\t"
+		"   cmp/eq   %2,  %0	\n\t"
+		"   bf	     1f		\n\t"
+		"   mov.l    %3, @%1	\n\t"
+		"1: mov      r1,  r15	\n\t"
+		: "=&r" (ret)
+		: "r" (v), "r" (old), "r" (new)
+		: "memory" , "r0", "r1" , "t");
+
+	return ret;
+}
+
+static inline int atomic_add_unless(atomic_t *v, int a, int u)
+{
+	int ret;
+	unsigned long tmp;
+
+	__asm__ __volatile__ (
+		"   .align 2		\n\t"
+		"   mova    1f,   r0	\n\t"
+		"   nop			\n\t"
+		"   mov    r15,   r1	\n\t"
+		"   mov    #-12,  r15	\n\t"
+		"   mov.l  @%2,   %1	\n\t"
+		"   mov	    %1,   %0    \n\t"
+		"   cmp/eq  %4,   %0	\n\t"
+		"   bt/s    1f		\n\t"
+		"    add    %3,   %1	\n\t"
+		"   mov.l   %1,  @%2	\n\t"
+		"1: mov     r1,   r15	\n\t"
+		: "=&r" (ret), "=&r" (tmp)
+		: "r" (v), "r" (a), "r" (u)
+		: "memory" , "r0", "r1" , "t");
+
+	return ret != u;
+}
+#endif /* __ASM_SH_ATOMIC_GRB_H */
diff --git a/include/asm-sh/atomic.h b/include/asm-sh/atomic.h
index e12570b9339d..c043ef003028 100644
--- a/include/asm-sh/atomic.h
+++ b/include/asm-sh/atomic.h
@@ -17,7 +17,9 @@ typedef struct { volatile int counter; } atomic_t;
 #include <linux/compiler.h>
 #include <asm/system.h>
 
-#ifdef CONFIG_CPU_SH4A
+#if defined(CONFIG_GUSA_RB)
+#include <asm/atomic-grb.h>
+#elif defined(CONFIG_CPU_SH4A)
 #include <asm/atomic-llsc.h>
 #else
 #include <asm/atomic-irq.h>
@@ -44,6 +46,7 @@ typedef struct { volatile int counter; } atomic_t;
 #define atomic_inc(v) atomic_add(1,(v))
 #define atomic_dec(v) atomic_sub(1,(v))
 
+#ifndef CONFIG_GUSA_RB
 static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 {
 	int ret;
@@ -58,8 +61,6 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 	return ret;
 }
 
-#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
-
 static inline int atomic_add_unless(atomic_t *v, int a, int u)
 {
 	int ret;
@@ -73,6 +74,9 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
 
 	return ret != u;
 }
+#endif
+
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
 
 /* Atomic operations are already serializing on SH */
diff --git a/include/asm-sh/bitops-grb.h b/include/asm-sh/bitops-grb.h
new file mode 100644
index 000000000000..a5907b94395b
--- /dev/null
+++ b/include/asm-sh/bitops-grb.h
@@ -0,0 +1,169 @@
+#ifndef __ASM_SH_BITOPS_GRB_H
+#define __ASM_SH_BITOPS_GRB_H
+
+static inline void set_bit(int nr, volatile void * addr)
+{
+	int	mask;
+	volatile unsigned int *a = addr;
+	unsigned long tmp;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+
+        __asm__ __volatile__ (
+                "   .align 2              \n\t"
+                "   mova    1f,   r0      \n\t" /* r0 = end point */
+                "   mov    r15,   r1      \n\t" /* r1 = saved sp */
+                "   mov    #-6,   r15     \n\t" /* LOGIN: r15 = size */
+                "   mov.l  @%1,   %0      \n\t" /* load  old value */
+                "   or      %2,   %0      \n\t" /* or */
+                "   mov.l   %0,   @%1     \n\t" /* store new value */
+                "1: mov     r1,   r15     \n\t" /* LOGOUT */
+                : "=&r" (tmp),
+                  "+r"  (a)
+                : "r"   (mask)
+                : "memory" , "r0", "r1");
+}
+
+static inline void clear_bit(int nr, volatile void * addr)
+{
+	int	mask;
+	volatile unsigned int *a = addr;
+        unsigned long tmp;
+
+	a += nr >> 5;
+        mask = ~(1 << (nr & 0x1f));
+        __asm__ __volatile__ (
+                "   .align 2              \n\t"
+                "   mova    1f,   r0      \n\t" /* r0 = end point */
+                "   mov    r15,   r1      \n\t" /* r1 = saved sp */
+                "   mov    #-6,   r15     \n\t" /* LOGIN: r15 = size */
+                "   mov.l  @%1,   %0      \n\t" /* load  old value */
+                "   and     %2,   %0      \n\t" /* and */
+                "   mov.l   %0,   @%1     \n\t" /* store new value */
+                "1: mov     r1,   r15     \n\t" /* LOGOUT */
+                : "=&r" (tmp),
+                  "+r"  (a)
+                : "r"   (mask)
+                : "memory" , "r0", "r1");
+}
+
+static inline void change_bit(int nr, volatile void * addr)
+{
+        int     mask;
+        volatile unsigned int *a = addr;
+        unsigned long tmp;
+
+        a += nr >> 5;
+        mask = 1 << (nr & 0x1f);
+        __asm__ __volatile__ (
+                "   .align 2              \n\t"
+                "   mova    1f,   r0      \n\t" /* r0 = end point */
+                "   mov    r15,   r1      \n\t" /* r1 = saved sp */
+                "   mov    #-6,   r15     \n\t" /* LOGIN: r15 = size */
+                "   mov.l  @%1,   %0      \n\t" /* load  old value */
+                "   xor     %2,   %0      \n\t" /* xor */
+                "   mov.l   %0,   @%1     \n\t" /* store new value */
+                "1: mov     r1,   r15     \n\t" /* LOGOUT */
+                : "=&r" (tmp),
+                  "+r"  (a)
+                : "r"   (mask)
+                : "memory" , "r0", "r1");
+}
+
+static inline int test_and_set_bit(int nr, volatile void * addr)
+{
+        int     mask, retval;
+	volatile unsigned int *a = addr;
+        unsigned long tmp;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+
+        __asm__ __volatile__ (
+                "   .align 2              \n\t"
+                "   mova    1f,   r0      \n\t" /* r0 = end point */
+                "   mov    r15,   r1      \n\t" /* r1 = saved sp */
+                "   mov   #-14,   r15     \n\t" /* LOGIN: r15 = size */
+                "   mov.l  @%2,   %0      \n\t" /* load old value */
+                "   mov     %0,   %1      \n\t"
+                "   tst     %1,   %3      \n\t" /* T = ((*a & mask) == 0) */
+                "   mov    #-1,   %1      \n\t" /* retvat = -1 */
+                "   negc    %1,   %1      \n\t" /* retval = (mask & *a) != 0 */
+                "   or      %3,   %0      \n\t"
+                "   mov.l   %0,  @%2      \n\t" /* store new value */
+                "1: mov     r1,  r15      \n\t" /* LOGOUT */
+                : "=&r" (tmp),
+                  "=&r" (retval),
+                  "+r"  (a)
+                : "r"   (mask)
+                : "memory" , "r0", "r1" ,"t");
+
+        return retval;
+}
+
+static inline int test_and_clear_bit(int nr, volatile void * addr)
+{
+        int     mask, retval,not_mask;
+        volatile unsigned int *a = addr;
+        unsigned long tmp;
+
+        a += nr >> 5;
+        mask = 1 << (nr & 0x1f);
+
+	not_mask = ~mask;
+
+        __asm__ __volatile__ (
+                "   .align 2              \n\t"
+		"   mova    1f,   r0      \n\t" /* r0 = end point */
+                "   mov    r15,   r1      \n\t" /* r1 = saved sp */
+		"   mov   #-14,   r15     \n\t" /* LOGIN */
+		"   mov.l  @%2,   %0      \n\t" /* load old value */
+                "   mov     %0,   %1      \n\t" /* %1 = *a */
+                "   tst     %1,   %3      \n\t" /* T = ((*a & mask) == 0) */
+		"   mov    #-1,   %1      \n\t" /* retvat = -1 */
+                "   negc    %1,   %1      \n\t" /* retval = (mask & *a) != 0 */
+                "   and     %4,   %0      \n\t"
+                "   mov.l   %0,  @%2      \n\t" /* store new value */
+		"1: mov     r1,   r15     \n\t" /* LOGOUT */
+		: "=&r" (tmp),
+		  "=&r" (retval),
+		  "+r"  (a)
+		: "r"   (mask),
+		  "r"   (not_mask)
+		: "memory" , "r0", "r1", "t");
+
+        return retval;
+}
+
+static inline int test_and_change_bit(int nr, volatile void * addr)
+{
+        int     mask, retval;
+        volatile unsigned int *a = addr;
+        unsigned long tmp;
+
+        a += nr >> 5;
+        mask = 1 << (nr & 0x1f);
+
+        __asm__ __volatile__ (
+                "   .align 2              \n\t"
+                "   mova    1f,   r0      \n\t" /* r0 = end point */
+                "   mov    r15,   r1      \n\t" /* r1 = saved sp */
+                "   mov   #-14,   r15     \n\t" /* LOGIN */
+                "   mov.l  @%2,   %0      \n\t" /* load old value */
+                "   mov     %0,   %1      \n\t" /* %1 = *a */
+                "   tst     %1,   %3      \n\t" /* T = ((*a & mask) == 0) */
+                "   mov    #-1,   %1      \n\t" /* retvat = -1 */
+                "   negc    %1,   %1      \n\t" /* retval = (mask & *a) != 0 */
+                "   xor     %3,   %0      \n\t"
+                "   mov.l   %0,  @%2      \n\t" /* store new value */
+                "1: mov     r1,   r15     \n\t" /* LOGOUT */
+                : "=&r" (tmp),
+                  "=&r" (retval),
+                  "+r"  (a)
+                : "r"   (mask)
+                : "memory" , "r0", "r1", "t");
+
+        return retval;
+}
+#endif /* __ASM_SH_BITOPS_GRB_H */
diff --git a/include/asm-sh/bitops-irq.h b/include/asm-sh/bitops-irq.h
new file mode 100644
index 000000000000..653a12750584
--- /dev/null
+++ b/include/asm-sh/bitops-irq.h
@@ -0,0 +1,91 @@
+#ifndef __ASM_SH_BITOPS_IRQ_H
+#define __ASM_SH_BITOPS_IRQ_H
+
+static inline void set_bit(int nr, volatile void *addr)
+{
+	int	mask;
+	volatile unsigned int *a = addr;
+	unsigned long flags;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	local_irq_save(flags);
+	*a |= mask;
+	local_irq_restore(flags);
+}
+
+static inline void clear_bit(int nr, volatile void *addr)
+{
+	int	mask;
+	volatile unsigned int *a = addr;
+	unsigned long flags;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	local_irq_save(flags);
+	*a &= ~mask;
+	local_irq_restore(flags);
+}
+
+static inline void change_bit(int nr, volatile void *addr)
+{
+	int	mask;
+	volatile unsigned int *a = addr;
+	unsigned long flags;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	local_irq_save(flags);
+	*a ^= mask;
+	local_irq_restore(flags);
+}
+
+static inline int test_and_set_bit(int nr, volatile void *addr)
+{
+	int	mask, retval;
+	volatile unsigned int *a = addr;
+	unsigned long flags;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	local_irq_save(flags);
+	retval = (mask & *a) != 0;
+	*a |= mask;
+	local_irq_restore(flags);
+
+	return retval;
+}
+
+static inline int test_and_clear_bit(int nr, volatile void *addr)
+{
+	int	mask, retval;
+	volatile unsigned int *a = addr;
+	unsigned long flags;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	local_irq_save(flags);
+	retval = (mask & *a) != 0;
+	*a &= ~mask;
+	local_irq_restore(flags);
+
+	return retval;
+}
+
+static inline int test_and_change_bit(int nr, volatile void *addr)
+{
+	int	mask, retval;
+	volatile unsigned int *a = addr;
+	unsigned long flags;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	local_irq_save(flags);
+	retval = (mask & *a) != 0;
+	*a ^= mask;
+	local_irq_restore(flags);
+
+	return retval;
+}
+
+#endif /* __ASM_SH_BITOPS_IRQ_H */
diff --git a/include/asm-sh/bitops.h b/include/asm-sh/bitops.h
index a7bd81a7f064..b6ba5a60dec2 100644
--- a/include/asm-sh/bitops.h
+++ b/include/asm-sh/bitops.h
@@ -11,97 +11,18 @@
 /* For __swab32 */
 #include <asm/byteorder.h>
 
-static inline void set_bit(int nr, volatile void * addr)
-{
-	int	mask;
-	volatile unsigned int *a = addr;
-	unsigned long flags;
-
-	a += nr >> 5;
-	mask = 1 << (nr & 0x1f);
-	local_irq_save(flags);
-	*a |= mask;
-	local_irq_restore(flags);
-}
+#ifdef CONFIG_GUSA_RB
+#include <asm/bitops-grb.h>
+#else
+#include <asm/bitops-irq.h>
+#endif
+
 
 /*
  * clear_bit() doesn't provide any barrier for the compiler.
  */
 #define smp_mb__before_clear_bit()	barrier()
 #define smp_mb__after_clear_bit()	barrier()
-static inline void clear_bit(int nr, volatile void * addr)
-{
-	int	mask;
-	volatile unsigned int *a = addr;
-	unsigned long flags;
-
-	a += nr >> 5;
-	mask = 1 << (nr & 0x1f);
-	local_irq_save(flags);
-	*a &= ~mask;
-	local_irq_restore(flags);
-}
-
-static inline void change_bit(int nr, volatile void * addr)
-{
-	int	mask;
-	volatile unsigned int *a = addr;
-	unsigned long flags;
-
-	a += nr >> 5;
-	mask = 1 << (nr & 0x1f);
-	local_irq_save(flags);
-	*a ^= mask;
-	local_irq_restore(flags);
-}
-
-static inline int test_and_set_bit(int nr, volatile void * addr)
-{
-	int	mask, retval;
-	volatile unsigned int *a = addr;
-	unsigned long flags;
-
-	a += nr >> 5;
-	mask = 1 << (nr & 0x1f);
-	local_irq_save(flags);
-	retval = (mask & *a) != 0;
-	*a |= mask;
-	local_irq_restore(flags);
-
-	return retval;
-}
-
-static inline int test_and_clear_bit(int nr, volatile void * addr)
-{
-	int	mask, retval;
-	volatile unsigned int *a = addr;
-	unsigned long flags;
-
-	a += nr >> 5;
-	mask = 1 << (nr & 0x1f);
-	local_irq_save(flags);
-	retval = (mask & *a) != 0;
-	*a &= ~mask;
-	local_irq_restore(flags);
-
-	return retval;
-}
-
-static inline int test_and_change_bit(int nr, volatile void * addr)
-{
-	int	mask, retval;
-	volatile unsigned int *a = addr;
-	unsigned long flags;
-
-	a += nr >> 5;
-	mask = 1 << (nr & 0x1f);
-	local_irq_save(flags);
-	retval = (mask & *a) != 0;
-	*a ^= mask;
-	local_irq_restore(flags);
-
-	return retval;
-}
 
 #include <asm-generic/bitops/non-atomic.h>
 
diff --git a/include/asm-sh/cmpxchg-grb.h b/include/asm-sh/cmpxchg-grb.h
new file mode 100644
index 000000000000..e2681abe764f
--- /dev/null
+++ b/include/asm-sh/cmpxchg-grb.h
@@ -0,0 +1,70 @@
+#ifndef __ASM_SH_CMPXCHG_GRB_H
+#define __ASM_SH_CMPXCHG_GRB_H
+
+static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val)
+{
+	unsigned long retval;
+
+	__asm__ __volatile__ (
+		"   .align 2              \n\t"
+		"   mova    1f,   r0      \n\t" /* r0 = end point */
+		"   nop                   \n\t"
+		"   mov    r15,   r1      \n\t" /* r1 = saved sp */
+		"   mov    #-4,   r15     \n\t" /* LOGIN */
+		"   mov.l  @%1,   %0      \n\t" /* load  old value */
+		"   mov.l   %2,   @%1     \n\t" /* store new value */
+		"1: mov     r1,   r15     \n\t" /* LOGOUT */
+		: "=&r" (retval),
+		  "+r"  (m)
+		: "r"   (val)
+		: "memory", "r0", "r1");
+
+	return retval;
+}
+
+static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val)
+{
+	unsigned long retval;
+
+	__asm__ __volatile__ (
+		"   .align  2             \n\t"
+		"   mova    1f,   r0      \n\t" /* r0 = end point */
+		"   mov    r15,   r1      \n\t" /* r1 = saved sp */
+		"   mov    #-6,   r15     \n\t" /* LOGIN */
+		"   mov.b  @%1,   %0      \n\t" /* load  old value */
+		"   extu.b  %0,   %0      \n\t" /* extend as unsigned */
+		"   mov.b   %2,   @%1     \n\t" /* store new value */
+		"1: mov     r1,   r15     \n\t" /* LOGOUT */
+		: "=&r" (retval),
+		  "+r"  (m)
+		: "r"   (val)
+		: "memory" , "r0", "r1");
+
+	return retval;
+}
+
+static inline unsigned long __cmpxchg_u32(volatile int *m, unsigned long old,
+					  unsigned long new)
+{
+	unsigned long retval;
+
+	__asm__ __volatile__ (
+		"   .align  2             \n\t"
+		"   mova    1f,   r0      \n\t" /* r0 = end point */
+		"   nop                   \n\t"
+		"   mov    r15,   r1      \n\t" /* r1 = saved sp */
+		"   mov    #-8,   r15     \n\t" /* LOGIN */
+		"   mov.l  @%1,   %0      \n\t" /* load  old value */
+		"   cmp/eq  %0,   %2      \n\t"
+		"   bf            1f      \n\t" /* if not equal */
+		"   mov.l   %2,   @%1     \n\t" /* store new value */
+		"1: mov     r1,   r15     \n\t" /* LOGOUT */
+		: "=&r" (retval),
+		  "+r"  (m)
+		: "r"   (new)
+		: "memory" , "r0", "r1", "t");
+
+	return retval;
+}
+
+#endif /* __ASM_SH_CMPXCHG_GRB_H */
diff --git a/include/asm-sh/cmpxchg-irq.h b/include/asm-sh/cmpxchg-irq.h
new file mode 100644
index 000000000000..43049ec0554b
--- /dev/null
+++ b/include/asm-sh/cmpxchg-irq.h
@@ -0,0 +1,40 @@
+#ifndef __ASM_SH_CMPXCHG_IRQ_H
+#define __ASM_SH_CMPXCHG_IRQ_H
+
+static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val)
+{
+	unsigned long flags, retval;
+
+	local_irq_save(flags);
+	retval = *m;
+	*m = val;
+	local_irq_restore(flags);
+	return retval;
+}
+
+static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val)
+{
+	unsigned long flags, retval;
+
+	local_irq_save(flags);
+	retval = *m;
+	*m = val & 0xff;
+	local_irq_restore(flags);
+	return retval;
+}
+
+static inline unsigned long __cmpxchg_u32(volatile int *m, unsigned long old,
+	unsigned long new)
+{
+	__u32 retval;
+	unsigned long flags;
+
+	local_irq_save(flags);
+	retval = *m;
+	if (retval == old)
+		*m = new;
+	local_irq_restore(flags);       /* implies memory barrier  */
+	return retval;
+}
+
+#endif /* __ASM_SH_CMPXCHG_IRQ_H */
diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h
index ad3d2a636130..969f3d4afe2a 100644
--- a/include/asm-sh/system.h
+++ b/include/asm-sh/system.h
@@ -68,27 +68,11 @@
 
 #define set_mb(var, value) do { (void)xchg(&var, value); } while (0)
 
-static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val)
-{
-	unsigned long flags, retval;
-
-	local_irq_save(flags);
-	retval = *m;
-	*m = val;
-	local_irq_restore(flags);
-	return retval;
-}
-
-static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val)
-{
-	unsigned long flags, retval;
-
-	local_irq_save(flags);
-	retval = *m;
-	*m = val & 0xff;
-	local_irq_restore(flags);
-	return retval;
-}
+#ifdef CONFIG_GUSA_RB
+#include <asm/cmpxchg-grb.h>
+#else
+#include <asm/cmpxchg-irq.h>
+#endif
 
 extern void __xchg_called_with_bad_pointer(void);
 
@@ -115,20 +99,6 @@ extern void __xchg_called_with_bad_pointer(void);
 #define xchg(ptr,x)	\
 	((__typeof__(*(ptr)))__xchg((ptr),(unsigned long)(x), sizeof(*(ptr))))
 
-static inline unsigned long __cmpxchg_u32(volatile int * m, unsigned long old,
-	unsigned long new)
-{
-	__u32 retval;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	retval = *m;
-	if (retval == old)
-		*m = new;
-	local_irq_restore(flags);       /* implies memory barrier  */
-	return retval;
-}
-
 /* This function doesn't exist, so you'll get a linker error
  * if something tries to do an invalid cmpxchg(). */
 extern void __cmpxchg_called_with_bad_pointer(void);
-- 
cgit v1.2.3-59-g8ed1b


From 325df7f20467da07901c4f2b006d3457bba0adec Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 30 Nov 2007 16:34:26 +0900
Subject: sh: Explicit alignment for PAGE_SIZE in copy/clear_page().

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/lib/clear_page.S | 2 ++
 arch/sh/lib/copy_page.S  | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/lib/clear_page.S b/arch/sh/lib/clear_page.S
index 36d44ef2b8a2..3539123fe517 100644
--- a/arch/sh/lib/clear_page.S
+++ b/arch/sh/lib/clear_page.S
@@ -50,6 +50,8 @@ ENTRY(clear_page)
 	!
 	rts
 	 nop
+
+	.balign 4
 .Llimit:	.long	(PAGE_SIZE-28)
 
 ENTRY(__clear_user)
diff --git a/arch/sh/lib/copy_page.S b/arch/sh/lib/copy_page.S
index b879545fa28b..e002b91c8752 100644
--- a/arch/sh/lib/copy_page.S
+++ b/arch/sh/lib/copy_page.S
@@ -68,8 +68,9 @@ ENTRY(copy_page)
 	rts
 	 nop
 
-	.align 2
+	.balign 4
 .Lpsz:	.long	PAGE_SIZE
+
 /*
  * __kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n);
  * Return the number of bytes NOT copied
-- 
cgit v1.2.3-59-g8ed1b


From cbaa118ecfd99fc5ed7adbd9c34a30e1c05e3c93 Mon Sep 17 00:00:00 2001
From: Stuart Menefy <stuart.menefy@st.com>
Date: Fri, 30 Nov 2007 17:06:36 +0900
Subject: sh: Preparation for uncached jumps through PMB.

Presently most of the 29-bit physical parts do P1/P2 segmentation
with a 1:1 cached/uncached mapping, jumping between the two to
control the caching behaviour. This provides the basic infrastructure
to maintain this behaviour on 32-bit physical parts that don't map
P1/P2 at all, using a shiny new linker section and corresponding
fixmap entry.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/init.c       |  6 +++---
 arch/sh/kernel/cpu/sh3/probe.c  |  6 +++---
 arch/sh/kernel/vmlinux_32.lds.S |  9 +++++++++
 arch/sh/mm/cache-debugfs.c      |  9 +++++----
 arch/sh/mm/cache-sh4.c          | 14 +++++++-------
 arch/sh/mm/cache-sh7705.c       | 12 ++++++------
 arch/sh/mm/init.c               | 16 +++++++++++++++-
 arch/sh/mm/pmb.c                | 18 +++++++++---------
 arch/sh/mm/tlb-sh4.c            |  7 ++++---
 include/asm-sh/fixmap.h         |  1 +
 include/asm-sh/sections.h       |  1 +
 include/asm-sh/system.h         |  2 ++
 include/asm-sh/system_32.h      | 36 +++++++++++++++++++-----------------
 include/asm-sh/system_64.h      |  7 ++++---
 14 files changed, 88 insertions(+), 56 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c
index fd1688e6c61c..0f0c76a842e4 100644
--- a/arch/sh/kernel/cpu/init.c
+++ b/arch/sh/kernel/cpu/init.c
@@ -64,11 +64,11 @@ static void __init speculative_execution_init(void)
  * Generic first-level cache init
  */
 #ifdef CONFIG_SUPERH32
-static void __init cache_init(void)
+static void __uses_jump_to_uncached cache_init(void)
 {
 	unsigned long ccr, flags;
 
-	jump_to_P2();
+	jump_to_uncached();
 	ccr = ctrl_inl(CCR);
 
 	/*
@@ -145,7 +145,7 @@ static void __init cache_init(void)
 #endif
 
 	ctrl_outl(flags, CCR);
-	back_to_P1();
+	back_to_cached();
 }
 #else
 #define cache_init()	do { } while (0)
diff --git a/arch/sh/kernel/cpu/sh3/probe.c b/arch/sh/kernel/cpu/sh3/probe.c
index bf579e061e09..22070e43e34d 100644
--- a/arch/sh/kernel/cpu/sh3/probe.c
+++ b/arch/sh/kernel/cpu/sh3/probe.c
@@ -16,11 +16,11 @@
 #include <asm/cache.h>
 #include <asm/io.h>
 
-int __init detect_cpu_and_cache_system(void)
+int __uses_jump_to_uncached detect_cpu_and_cache_system(void)
 {
 	unsigned long addr0, addr1, data0, data1, data2, data3;
 
-	jump_to_P2();
+	jump_to_uncached();
 	/*
 	 * Check if the entry shadows or not.
 	 * When shadowed, it's 128-entry system.
@@ -48,7 +48,7 @@ int __init detect_cpu_and_cache_system(void)
 	ctrl_outl(data0&~SH_CACHE_VALID, addr0);
 	ctrl_outl(data2&~SH_CACHE_VALID, addr1);
 
-	back_to_P1();
+	back_to_cached();
 
 	boot_cpu_data.dcache.ways		= 4;
 	boot_cpu_data.dcache.entry_shift	= 4;
diff --git a/arch/sh/kernel/vmlinux_32.lds.S b/arch/sh/kernel/vmlinux_32.lds.S
index 0956fb3681a3..50c69c18dced 100644
--- a/arch/sh/kernel/vmlinux_32.lds.S
+++ b/arch/sh/kernel/vmlinux_32.lds.S
@@ -43,6 +43,15 @@ SECTIONS
 	NOTES
 	RO_DATA(PAGE_SIZE)
 
+	/*
+	 * Code which must be executed uncached and the associated data
+	 */
+	. = ALIGN(PAGE_SIZE);
+	__uncached_start = .;
+	.uncached.text : { *(.uncached.text) }
+	.uncached.data : { *(.uncached.data) }
+	__uncached_end = .;
+
 	. = ALIGN(THREAD_SIZE);
 	.data : {			/* Data */
 		*(.data.init_task)
diff --git a/arch/sh/mm/cache-debugfs.c b/arch/sh/mm/cache-debugfs.c
index de6d2c9aa477..db6d950b6f5e 100644
--- a/arch/sh/mm/cache-debugfs.c
+++ b/arch/sh/mm/cache-debugfs.c
@@ -22,7 +22,8 @@ enum cache_type {
 	CACHE_TYPE_UNIFIED,
 };
 
-static int cache_seq_show(struct seq_file *file, void *iter)
+static int __uses_jump_to_uncached cache_seq_show(struct seq_file *file,
+						  void *iter)
 {
 	unsigned int cache_type = (unsigned int)file->private;
 	struct cache_info *cache;
@@ -34,11 +35,11 @@ static int cache_seq_show(struct seq_file *file, void *iter)
 	 * Go uncached immediately so we don't skew the results any
 	 * more than we already are..
 	 */
-	jump_to_P2();
+	jump_to_uncached();
 
 	ccr = ctrl_inl(CCR);
 	if ((ccr & CCR_CACHE_ENABLE) == 0) {
-		back_to_P1();
+		back_to_cached();
 
 		seq_printf(file, "disabled\n");
 		return 0;
@@ -104,7 +105,7 @@ static int cache_seq_show(struct seq_file *file, void *iter)
 		addrstart += cache->way_incr;
 	}
 
-	back_to_P1();
+	back_to_cached();
 
 	return 0;
 }
diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c
index 226b190c5b9c..43d7ff6b6ec7 100644
--- a/arch/sh/mm/cache-sh4.c
+++ b/arch/sh/mm/cache-sh4.c
@@ -190,7 +190,7 @@ void flush_icache_range(unsigned long start, unsigned long end)
  * .. which happens to be the same behavior as flush_icache_range().
  * So, we simply flush out a line.
  */
-void flush_cache_sigtramp(unsigned long addr)
+void __uses_jump_to_uncached flush_cache_sigtramp(unsigned long addr)
 {
 	unsigned long v, index;
 	unsigned long flags;
@@ -205,13 +205,13 @@ void flush_cache_sigtramp(unsigned long addr)
 			(v & boot_cpu_data.icache.entry_mask);
 
 	local_irq_save(flags);
-	jump_to_P2();
+	jump_to_uncached();
 
 	for (i = 0; i < boot_cpu_data.icache.ways;
 	     i++, index += boot_cpu_data.icache.way_incr)
 		ctrl_outl(0, index);	/* Clear out Valid-bit */
 
-	back_to_P1();
+	back_to_cached();
 	wmb();
 	local_irq_restore(flags);
 }
@@ -256,12 +256,12 @@ void flush_dcache_page(struct page *page)
 }
 
 /* TODO: Selective icache invalidation through IC address array.. */
-static inline void flush_icache_all(void)
+static inline void __uses_jump_to_uncached flush_icache_all(void)
 {
 	unsigned long flags, ccr;
 
 	local_irq_save(flags);
-	jump_to_P2();
+	jump_to_uncached();
 
 	/* Flush I-cache */
 	ccr = ctrl_inl(CCR);
@@ -269,11 +269,11 @@ static inline void flush_icache_all(void)
 	ctrl_outl(ccr, CCR);
 
 	/*
-	 * back_to_P1() will take care of the barrier for us, don't add
+	 * back_to_cached() will take care of the barrier for us, don't add
 	 * another one!
 	 */
 
-	back_to_P1();
+	back_to_cached();
 	local_irq_restore(flags);
 }
 
diff --git a/arch/sh/mm/cache-sh7705.c b/arch/sh/mm/cache-sh7705.c
index 4896d7376926..22dacc778823 100644
--- a/arch/sh/mm/cache-sh7705.c
+++ b/arch/sh/mm/cache-sh7705.c
@@ -71,7 +71,7 @@ void flush_icache_range(unsigned long start, unsigned long end)
 /*
  * Writeback&Invalidate the D-cache of the page
  */
-static void __flush_dcache_page(unsigned long phys)
+static void __uses_jump_to_uncached __flush_dcache_page(unsigned long phys)
 {
 	unsigned long ways, waysize, addrstart;
 	unsigned long flags;
@@ -92,7 +92,7 @@ static void __flush_dcache_page(unsigned long phys)
 	 * possible.
 	 */
 	local_irq_save(flags);
-	jump_to_P2();
+	jump_to_uncached();
 
 	ways = current_cpu_data.dcache.ways;
 	waysize = current_cpu_data.dcache.sets;
@@ -118,7 +118,7 @@ static void __flush_dcache_page(unsigned long phys)
 		addrstart += current_cpu_data.dcache.way_incr;
 	} while (--ways);
 
-	back_to_P1();
+	back_to_cached();
 	local_irq_restore(flags);
 }
 
@@ -132,15 +132,15 @@ void flush_dcache_page(struct page *page)
 		__flush_dcache_page(PHYSADDR(page_address(page)));
 }
 
-void flush_cache_all(void)
+void __uses_jump_to_uncached flush_cache_all(void)
 {
 	unsigned long flags;
 
 	local_irq_save(flags);
-	jump_to_P2();
+	jump_to_uncached();
 
 	cache_wback_all();
-	back_to_P1();
+	back_to_cached();
 	local_irq_restore(flags);
 }
 
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 79c309780f95..094225e0d722 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -23,6 +23,7 @@
 
 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 pgd_t swapper_pg_dir[PTRS_PER_PGD];
+unsigned long cached_to_uncached = 0;
 
 void show_mem(void)
 {
@@ -99,7 +100,8 @@ static void set_pte_phys(unsigned long addr, unsigned long phys, pgprot_t prot)
 
 	set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, prot));
 
-	flush_tlb_one(get_asid(), addr);
+	if (cached_to_uncached)
+		flush_tlb_one(get_asid(), addr);
 }
 
 /*
@@ -164,6 +166,18 @@ void __init paging_init(void)
 	}
 
 	free_area_init_nodes(max_zone_pfns);
+
+	/* Set up the uncached fixmap */
+	set_fixmap_nocache(FIX_UNCACHED, __pa(&__uncached_start));
+
+#ifdef CONFIG_29BIT
+	/*
+	 * Handle trivial transitions between cached and uncached
+	 * segments, making use of the 1:1 mapping relationship in
+	 * 512MB lowmem.
+	 */
+	cached_to_uncached = P2SEG - P1SEG;
+#endif
 }
 
 static struct kcore_list kcore_mem, kcore_vmalloc;
diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c
index ef6ab39eaf65..ab81c602295f 100644
--- a/arch/sh/mm/pmb.c
+++ b/arch/sh/mm/pmb.c
@@ -163,18 +163,18 @@ repeat:
 	return 0;
 }
 
-int set_pmb_entry(struct pmb_entry *pmbe)
+int __uses_jump_to_uncached set_pmb_entry(struct pmb_entry *pmbe)
 {
 	int ret;
 
-	jump_to_P2();
+	jump_to_uncached();
 	ret = __set_pmb_entry(pmbe->vpn, pmbe->ppn, pmbe->flags, &pmbe->entry);
-	back_to_P1();
+	back_to_cached();
 
 	return ret;
 }
 
-void clear_pmb_entry(struct pmb_entry *pmbe)
+void __uses_jump_to_uncached clear_pmb_entry(struct pmb_entry *pmbe)
 {
 	unsigned int entry = pmbe->entry;
 	unsigned long addr;
@@ -188,7 +188,7 @@ void clear_pmb_entry(struct pmb_entry *pmbe)
 		     entry >= NR_PMB_ENTRIES))
 		return;
 
-	jump_to_P2();
+	jump_to_uncached();
 
 	/* Clear V-bit */
 	addr = mk_pmb_addr(entry);
@@ -197,7 +197,7 @@ void clear_pmb_entry(struct pmb_entry *pmbe)
 	addr = mk_pmb_data(entry);
 	ctrl_outl(ctrl_inl(addr) & ~PMB_V, addr);
 
-	back_to_P1();
+	back_to_cached();
 
 	clear_bit(entry, &pmb_map);
 }
@@ -302,7 +302,7 @@ static void pmb_cache_ctor(struct kmem_cache *cachep, void *pmb)
 	pmbe->entry = PMB_NO_ENTRY;
 }
 
-static int __init pmb_init(void)
+static int __uses_jump_to_uncached pmb_init(void)
 {
 	unsigned int nr_entries = ARRAY_SIZE(pmb_init_map);
 	unsigned int entry, i;
@@ -312,7 +312,7 @@ static int __init pmb_init(void)
 	pmb_cache = kmem_cache_create("pmb", sizeof(struct pmb_entry), 0,
 				      SLAB_PANIC, pmb_cache_ctor);
 
-	jump_to_P2();
+	jump_to_uncached();
 
 	/*
 	 * Ordering is important, P2 must be mapped in the PMB before we
@@ -335,7 +335,7 @@ static int __init pmb_init(void)
 	i |= MMUCR_TI;
 	ctrl_outl(i, MMUCR);
 
-	back_to_P1();
+	back_to_cached();
 
 	return 0;
 }
diff --git a/arch/sh/mm/tlb-sh4.c b/arch/sh/mm/tlb-sh4.c
index 2d1dd6044307..f0c7b7397fa6 100644
--- a/arch/sh/mm/tlb-sh4.c
+++ b/arch/sh/mm/tlb-sh4.c
@@ -79,7 +79,8 @@ void update_mmu_cache(struct vm_area_struct * vma,
 	local_irq_restore(flags);
 }
 
-void local_flush_tlb_one(unsigned long asid, unsigned long page)
+void __uses_jump_to_uncached local_flush_tlb_one(unsigned long asid,
+						 unsigned long page)
 {
 	unsigned long addr, data;
 
@@ -91,7 +92,7 @@ void local_flush_tlb_one(unsigned long asid, unsigned long page)
 	 */
 	addr = MMU_UTLB_ADDRESS_ARRAY | MMU_PAGE_ASSOC_BIT;
 	data = page | asid; /* VALID bit is off */
-	jump_to_P2();
+	jump_to_uncached();
 	ctrl_outl(data, addr);
-	back_to_P1();
+	back_to_cached();
 }
diff --git a/include/asm-sh/fixmap.h b/include/asm-sh/fixmap.h
index 09463cd9bbb9..721fcc4d5e98 100644
--- a/include/asm-sh/fixmap.h
+++ b/include/asm-sh/fixmap.h
@@ -49,6 +49,7 @@ enum fixed_addresses {
 #define FIX_N_COLOURS 16
 	FIX_CMAP_BEGIN,
 	FIX_CMAP_END = FIX_CMAP_BEGIN + FIX_N_COLOURS,
+	FIX_UNCACHED,
 #ifdef CONFIG_HIGHMEM
 	FIX_KMAP_BEGIN,	/* reserved pte's for temporary kernel mappings */
 	FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
diff --git a/include/asm-sh/sections.h b/include/asm-sh/sections.h
index bd9cbc967c2a..8f8f4ad400df 100644
--- a/include/asm-sh/sections.h
+++ b/include/asm-sh/sections.h
@@ -4,6 +4,7 @@
 #include <asm-generic/sections.h>
 
 extern long __machvec_start, __machvec_end;
+extern char __uncached_start, __uncached_end;
 extern char _ebss[];
 
 #endif /* __ASM_SH_SECTIONS_H */
diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h
index 969f3d4afe2a..9bda8d063ecf 100644
--- a/include/asm-sh/system.h
+++ b/include/asm-sh/system.h
@@ -144,6 +144,8 @@ extern unsigned int instruction_size(unsigned int insn);
 #define instruction_size(insn)	(4)
 #endif
 
+extern unsigned long cached_to_uncached;
+
 /* XXX
  * disable hlt during certain critical i/o operations
  */
diff --git a/include/asm-sh/system_32.h b/include/asm-sh/system_32.h
index ad37e8d5f31e..e918bacd5ecf 100644
--- a/include/asm-sh/system_32.h
+++ b/include/asm-sh/system_32.h
@@ -58,29 +58,31 @@ do {								\
 	last = __last;						\
 } while (0)
 
+#define __uses_jump_to_uncached __attribute__ ((__section__ (".uncached.text")))
+
 /*
- * Jump to P2 area.
- * When handling TLB or caches, we need to do it from P2 area.
+ * Jump to uncached area.
+ * When handling TLB or caches, we need to do it from an uncached area.
  */
-#define jump_to_P2()			\
-do {					\
-	unsigned long __dummy;		\
-	__asm__ __volatile__(		\
-		"mov.l	1f, %0\n\t"	\
-		"or	%1, %0\n\t"	\
-		"jmp	@%0\n\t"	\
-		" nop\n\t"		\
-		".balign 4\n"		\
-		"1:	.long 2f\n"	\
-		"2:"			\
-		: "=&r" (__dummy)	\
-		: "r" (0x20000000));	\
+#define jump_to_uncached()			\
+do {						\
+	unsigned long __dummy;			\
+						\
+	__asm__ __volatile__(			\
+		"mova	1f, %0\n\t"		\
+		"add	%1, %0\n\t"		\
+		"jmp	@%0\n\t"		\
+		" nop\n\t"			\
+		".balign 4\n"			\
+		"1:"				\
+		: "=&z" (__dummy)		\
+		: "r" (cached_to_uncached));	\
 } while (0)
 
 /*
- * Back to P1 area.
+ * Back to cached area.
  */
-#define back_to_P1()					\
+#define back_to_cached()				\
 do {							\
 	unsigned long __dummy;				\
 	ctrl_barrier();					\
diff --git a/include/asm-sh/system_64.h b/include/asm-sh/system_64.h
index 0e466e991f7d..943acf5ea07c 100644
--- a/include/asm-sh/system_64.h
+++ b/include/asm-sh/system_64.h
@@ -32,8 +32,9 @@ do {								\
 			      &next->thread);			\
 } while (0)
 
-/* No segmentation.. */
-#define jump_to_P2()	do { } while (0)
-#define back_to_P1()	do { } while (0)
+#define __uses_jump_to_uncached
+
+#define jump_to_uncached()	do { } while (0)
+#define back_to_cached()	do { } while (0)
 
 #endif /* __ASM_SH_SYSTEM_64_H */
-- 
cgit v1.2.3-59-g8ed1b


From d02b08f6e8b184ffef349e395210a5e82ff4f4bc Mon Sep 17 00:00:00 2001
From: Stuart Menefy <stuart.menefy@st.com>
Date: Fri, 30 Nov 2007 17:52:53 +0900
Subject: sh: Clean up places that make 29-bit physical assumptions.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boot/compressed/misc_32.c    |  5 +++-
 arch/sh/kernel/setup.c               |  4 +--
 arch/sh/kernel/vmlinux_32.lds.S      |  5 ++++
 include/asm-sh/addrspace.h           |  6 ++++-
 include/asm-sh/cpu-sh4/mmu_context.h |  8 +++++-
 include/asm-sh/io.h                  | 16 +-----------
 include/asm-sh/page.h                | 50 ++++++++++++++++++++++++++----------
 include/asm-sh/pgtable.h             |  8 +++++-
 include/asm-sh/pgtable_32.h          |  2 +-
 include/asm-sh/scatterlist.h         |  3 ++-
 10 files changed, 71 insertions(+), 36 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/boot/compressed/misc_32.c b/arch/sh/boot/compressed/misc_32.c
index df65e305acf7..adcea31e663e 100644
--- a/arch/sh/boot/compressed/misc_32.c
+++ b/arch/sh/boot/compressed/misc_32.c
@@ -230,7 +230,10 @@ long* stack_start = &user_stack[STACK_SIZE];
 void decompress_kernel(void)
 {
 	output_data = 0;
-	output_ptr = P2SEGADDR((unsigned long)&_text+PAGE_SIZE);
+	output_ptr = PHYSADDR((unsigned long)&_text+PAGE_SIZE);
+#ifdef CONFIG_29BIT
+	output_ptr |= P2SEG;
+#endif
 	free_mem_ptr = (unsigned long)&_end;
 	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
 
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 7eb7fdcce0f8..f48ce8e5d0a8 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -82,7 +82,7 @@ static int __init early_parse_mem(char *p)
 {
 	unsigned long size;
 
-	memory_start = (unsigned long)PAGE_OFFSET+__MEMORY_START;
+	memory_start = (unsigned long)__va(__MEMORY_START);
 	size = memparse(p, &p);
 
 	if (size > __MEMORY_SIZE) {
@@ -254,7 +254,7 @@ void __init setup_arch(char **cmdline_p)
 	data_resource.start = virt_to_phys(_etext);
 	data_resource.end = virt_to_phys(_edata)-1;
 
-	memory_start = (unsigned long)PAGE_OFFSET+__MEMORY_START;
+	memory_start = (unsigned long)__va(__MEMORY_START);
 	if (!memory_end)
 		memory_end = memory_start + __MEMORY_SIZE;
 
diff --git a/arch/sh/kernel/vmlinux_32.lds.S b/arch/sh/kernel/vmlinux_32.lds.S
index 50c69c18dced..d549fac6d3e7 100644
--- a/arch/sh/kernel/vmlinux_32.lds.S
+++ b/arch/sh/kernel/vmlinux_32.lds.S
@@ -15,7 +15,12 @@ OUTPUT_ARCH(sh)
 ENTRY(_start)
 SECTIONS
 {
+#ifdef CONFIG_32BIT
+	. = CONFIG_PAGE_OFFSET + CONFIG_ZERO_PAGE_OFFSET;
+#else
 	. = CONFIG_PAGE_OFFSET + CONFIG_MEMORY_START + CONFIG_ZERO_PAGE_OFFSET;
+#endif
+
 	_text = .;			/* Text and read-only data */
 
 	.empty_zero_page : {
diff --git a/include/asm-sh/addrspace.h b/include/asm-sh/addrspace.h
index e7f2deb28e06..fa544fc38c23 100644
--- a/include/asm-sh/addrspace.h
+++ b/include/asm-sh/addrspace.h
@@ -31,6 +31,7 @@
 /* Returns the physical address of a PnSEG (n=1,2) address   */
 #define PHYSADDR(a)	(((unsigned long)(a)) & 0x1fffffff)
 
+#ifdef CONFIG_29BIT
 /*
  * Map an address to a certain privileged segment
  */
@@ -42,8 +43,11 @@
 	((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P3SEG))
 #define P4SEGADDR(a)	\
 	((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P4SEG))
-
+#endif /* 29BIT */
 #endif /* P1SEG */
 
+/* Check if an address can be reached in 29 bits */
+#define IS_29BIT(a)	(((unsigned long)(a)) < 0x20000000)
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_ADDRSPACE_H */
diff --git a/include/asm-sh/cpu-sh4/mmu_context.h b/include/asm-sh/cpu-sh4/mmu_context.h
index fdd56e3e3a3b..9ea8eb27b18e 100644
--- a/include/asm-sh/cpu-sh4/mmu_context.h
+++ b/include/asm-sh/cpu-sh4/mmu_context.h
@@ -30,6 +30,12 @@
 #define MMUCR_ME		(0)
 #endif
 
+#if defined(CONFIG_32BIT) && defined(CONFIG_CPU_SUBTYPE_ST40)
+#define MMUCR_SE		(1 << 4)
+#else
+#define MMUCR_SE		(0)
+#endif
+
 #ifdef CONFIG_SH_STORE_QUEUES
 #define MMUCR_SQMD		(1 << 9)
 #else
@@ -37,7 +43,7 @@
 #endif
 
 #define MMU_NTLB_ENTRIES	64
-#define MMU_CONTROL_INIT	(0x05|MMUCR_SQMD|MMUCR_ME)
+#define MMU_CONTROL_INIT	(0x05|MMUCR_SQMD|MMUCR_ME|MMUCR_SE)
 
 #define MMU_ITLB_DATA_ARRAY	0xF3000000
 #define MMU_UTLB_DATA_ARRAY	0xF7000000
diff --git a/include/asm-sh/io.h b/include/asm-sh/io.h
index a4e5f5573eee..94900c089519 100644
--- a/include/asm-sh/io.h
+++ b/include/asm-sh/io.h
@@ -273,23 +273,9 @@ extern void onchip_unmap(unsigned long vaddr);
 #if !defined(CONFIG_MMU)
 #define virt_to_phys(address)	((unsigned long)(address))
 #define phys_to_virt(address)	((void *)(address))
-#elif defined(CONFIG_SUPERH64)
+#else
 #define virt_to_phys(address)	(__pa(address))
 #define phys_to_virt(address)	(__va(address))
-#else
-/*
- * Change virtual addresses to physical addresses and vv.
- * These are trivial on the 1:1 Linux/SuperH mapping
- */
-static inline unsigned long virt_to_phys(volatile void *address)
-{
-	return PHYSADDR(address);
-}
-
-static inline void *phys_to_virt(unsigned long address)
-{
-	return (void *)P1SEGADDR(address);
-}
 #endif
 
 /*
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h
index bff635a078c8..002e64a4f049 100644
--- a/include/asm-sh/page.h
+++ b/include/asm-sh/page.h
@@ -5,6 +5,8 @@
  * Copyright (C) 1999  Niibe Yutaka
  */
 
+#include <linux/const.h>
+
 #ifdef __KERNEL__
 
 /* PAGE_SHIFT determines the page size */
@@ -18,15 +20,13 @@
 # error "Bogus kernel page size?"
 #endif
 
-#ifdef __ASSEMBLY__
-#define PAGE_SIZE	(1 << PAGE_SHIFT)
-#else
-#define PAGE_SIZE	(1UL << PAGE_SHIFT)
-#endif
-
+#define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 #define PTE_MASK	PAGE_MASK
 
+/* to align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr)	(((addr)+PAGE_SIZE-1)&PAGE_MASK)
+
 #if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
 #define HPAGE_SHIFT	16
 #elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K)
@@ -104,20 +104,44 @@ typedef struct { unsigned long pgd; } pgd_t;
 
 #endif /* !__ASSEMBLY__ */
 
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr)	(((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
+/*
+ * __MEMORY_START and SIZE are the physical addresses and size of RAM.
+ */
 #define __MEMORY_START		CONFIG_MEMORY_START
 #define __MEMORY_SIZE		CONFIG_MEMORY_SIZE
 
+/*
+ * PAGE_OFFSET is the virtual address of the start of kernel address
+ * space.
+ */
 #define PAGE_OFFSET		CONFIG_PAGE_OFFSET
-#define __pa(x)			((unsigned long)(x)-PAGE_OFFSET)
-#define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
-#define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)
 
+/*
+ * Virtual to physical RAM address translation.
+ *
+ * In 29 bit mode, the physical offset of RAM from address 0 is visible in
+ * the kernel virtual address space, and thus we don't have to take
+ * this into account when translating. However in 32 bit mode this offset
+ * is not visible (it is part of the PMB mapping) and so needs to be
+ * added or subtracted as required.
+ */
+#ifdef CONFIG_32BIT
+#define __pa(x)	((unsigned long)(x)-PAGE_OFFSET+__MEMORY_START)
+#define __va(x)	((void *)((unsigned long)(x)+PAGE_OFFSET-__MEMORY_START))
+#else
+#define __pa(x)	((unsigned long)(x)-PAGE_OFFSET)
+#define __va(x)	((void *)((unsigned long)(x)+PAGE_OFFSET))
+#endif
+
+#define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)
 #define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
 
-/* PFN start number, because of __MEMORY_START */
+/*
+ * PFN = physical frame number (ie PFN 0 == physical address 0)
+ * PFN_START is the PFN of the first page of RAM. By defining this we
+ * don't have struct page entries for the portion of address space
+ * between physical address 0 and the start of RAM.
+ */
 #define PFN_START		(__MEMORY_START >> PAGE_SHIFT)
 #define ARCH_PFN_OFFSET		(PFN_START)
 #define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h
index b4d7561cd9e0..3df90f003e95 100644
--- a/include/asm-sh/pgtable.h
+++ b/include/asm-sh/pgtable.h
@@ -69,7 +69,13 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 #define USER_PTRS_PER_PGD	(TASK_SIZE/PGDIR_SIZE)
 #define FIRST_USER_ADDRESS	0
 
-#define PTE_PHYS_MASK		(0x20000000 - PAGE_SIZE)
+#ifdef CONFIG_32BIT
+#define PHYS_ADDR_MASK		0xffffffff
+#else
+#define PHYS_ADDR_MASK		0x1fffffff
+#endif
+
+#define PTE_PHYS_MASK		(PHYS_ADDR_MASK & PAGE_MASK)
 
 #ifdef CONFIG_SUPERH32
 #define VMALLOC_START	(P3SEG)
diff --git a/include/asm-sh/pgtable_32.h b/include/asm-sh/pgtable_32.h
index 70303603e89d..7efc95404c64 100644
--- a/include/asm-sh/pgtable_32.h
+++ b/include/asm-sh/pgtable_32.h
@@ -98,7 +98,7 @@
 #define _PAGE_CLEAR_FLAGS	(_PAGE_PROTNONE | _PAGE_ACCESSED | _PAGE_FILE)
 #endif
 
-#define _PAGE_FLAGS_HARDWARE_MASK	(0x1fffffff & ~(_PAGE_CLEAR_FLAGS))
+#define _PAGE_FLAGS_HARDWARE_MASK	(PHYS_ADDR_MASK & ~(_PAGE_CLEAR_FLAGS))
 
 /* Hardware flags, page size encoding */
 #if defined(CONFIG_X2TLB)
diff --git a/include/asm-sh/scatterlist.h b/include/asm-sh/scatterlist.h
index a7d0d1856a99..35ef9c30f0de 100644
--- a/include/asm-sh/scatterlist.h
+++ b/include/asm-sh/scatterlist.h
@@ -1,6 +1,7 @@
 #ifndef __ASM_SH_SCATTERLIST_H
 #define __ASM_SH_SCATTERLIST_H
 
+#include <asm/pgtable.h>
 #include <asm/types.h>
 
 struct scatterlist {
@@ -13,7 +14,7 @@ struct scatterlist {
     unsigned int length;
 };
 
-#define ISA_DMA_THRESHOLD (0x1fffffff)
+#define ISA_DMA_THRESHOLD	PHYS_ADDR_MASK
 
 /* These macros should be used after a pci_map_sg call has been done
  * to get bus addresses of each of the SG entries and their lengths.
-- 
cgit v1.2.3-59-g8ed1b


From 2adb4e10092ee1719539bcfe397b96dbdc863e2e Mon Sep 17 00:00:00 2001
From: Stuart Menefy <stuart.menefy@st.com>
Date: Fri, 30 Nov 2007 17:59:55 +0900
Subject: sh: Populate swapper_pg_dir with fixmap range.

This saves us from having to use kmalloc() for the fixmap entries,
which is needed early for the uncached fixmap.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/init.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

(limited to 'arch')

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 094225e0d722..2918c6b14659 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -130,6 +130,37 @@ void __set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t prot)
 
 	set_pte_phys(address, phys, prot);
 }
+
+void __init page_table_range_init(unsigned long start, unsigned long end,
+					 pgd_t *pgd_base)
+{
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	int pgd_idx;
+	unsigned long vaddr;
+
+	vaddr = start & PMD_MASK;
+	end = (end + PMD_SIZE - 1) & PMD_MASK;
+	pgd_idx = pgd_index(vaddr);
+	pgd = pgd_base + pgd_idx;
+
+	for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) {
+		BUG_ON(pgd_none(*pgd));
+		pud = pud_offset(pgd, 0);
+		BUG_ON(pud_none(*pud));
+		pmd = pmd_offset(pud, 0);
+
+		if (!pmd_present(*pmd)) {
+			pte_t *pte_table;
+			pte_table = (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+			memset(pte_table, 0, PAGE_SIZE);
+			pmd_populate_kernel(&init_mm, pmd, pte_table);
+		}
+
+		vaddr += PMD_SIZE;
+	}
+}
 #endif	/* CONFIG_MMU */
 
 /*
@@ -149,6 +180,11 @@ void __init paging_init(void)
 	 * check for a null value. */
 	set_TTB(swapper_pg_dir);
 
+	/* Populate the relevant portions of swapper_pg_dir so that
+	 * we can use the fixmap entries without calling kmalloc.
+	 * pte's will be filled in by __set_fixmap(). */
+	page_table_range_init(FIXADDR_START, FIXADDR_TOP, swapper_pg_dir);
+
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 
 	for_each_online_node(nid) {
-- 
cgit v1.2.3-59-g8ed1b


From 453ec9c1c3808b051347edbbf637f997add7b85b Mon Sep 17 00:00:00 2001
From: Thomas Betker <thomas.betker@5etech.eu>
Date: Fri, 30 Nov 2007 18:22:10 +0900
Subject: sh: Fix up uImage target entry point.

This patch changes the uImage target so that it generates a wrapped
compressed vmlinux, rather than a wrapped zImage. The previous version
matched the ARM, this version matches the PPC. However I would question
how useful a self decompressing image is with a boot loader which does
decompression, so I think this is more useful. I also feel it matches
the descrition in the help text ("Compressed kernel image") better.

Signed-off-by: Thomas Betker <thomas.betker@5etech.eu>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boot/Makefile | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/boot/Makefile b/arch/sh/boot/Makefile
index 1b0f5be01d10..4b3a6f19c3b5 100644
--- a/arch/sh/boot/Makefile
+++ b/arch/sh/boot/Makefile
@@ -35,17 +35,27 @@ $(obj)/compressed/vmlinux: FORCE
 KERNEL_LOAD	:= $(shell /bin/bash -c 'printf "0x%8x" \
 		     $$[$(CONFIG_PAGE_OFFSET)  + \
 			$(CONFIG_MEMORY_START) + \
-			$(CONFIG_ZERO_PAGE_OFFSET)+0x1000]')
+			$(CONFIG_ZERO_PAGE_OFFSET)]')
+
+KERNEL_ENTRY	:= $(shell /bin/bash -c 'printf "0x%8x" \
+		     $$[$(KERNEL_LOAD)+0x1000]')
+
 
 quiet_cmd_uimage = UIMAGE  $@
       cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A sh -O linux -T kernel \
-		   -C none -a $(KERNEL_LOAD) -e $(KERNEL_LOAD) \
+		   -C none -a $(KERNEL_LOAD) -e $(KERNEL_ENTRY) \
 		   -n 'Linux-$(KERNELRELEASE)' -d $< $@
 
-$(obj)/uImage: $(obj)/zImage FORCE
+$(obj)/uImage: $(obj)/vmlinux.bin.gz FORCE
 	$(call if_changed,uimage)
 	@echo '  Image $@ is ready'
 
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
 OBJCOPYFLAGS_vmlinux.srec := -I binary -O srec
 $(obj)/vmlinux.srec: $(obj)/compressed/vmlinux
 	$(call if_changed,objcopy)
@@ -54,4 +64,5 @@ OBJCOPYFLAGS_uImage.srec := -I binary -O srec
 $(obj)/uImage.srec: $(obj)/uImage
 	$(call if_changed,objcopy)
 
-clean-files	+= uImage uImage.srec vmlinux.srec
+clean-files	+= uImage uImage.srec vmlinux.srec \
+		   vmlinux.bin vmlinux.bin.gz
-- 
cgit v1.2.3-59-g8ed1b


From c8c0a1aba9fa8f816dc8fb477ff816a5b700f0ea Mon Sep 17 00:00:00 2001
From: Stuart Menefy <stuart.menefy@st.com>
Date: Fri, 30 Nov 2007 18:42:27 +0900
Subject: sh: Support denormalization on SH-4 FPU.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/sh4/Makefile    |   2 +-
 arch/sh/kernel/cpu/sh4/fpu.c       | 514 +++++++++++++--------
 arch/sh/kernel/cpu/sh4/softfloat.c | 892 +++++++++++++++++++++++++++++++++++++
 include/asm-sh/cpu-sh4/fpu.h       |  32 ++
 4 files changed, 1259 insertions(+), 181 deletions(-)
 create mode 100644 arch/sh/kernel/cpu/sh4/softfloat.c
 create mode 100644 include/asm-sh/cpu-sh4/fpu.h

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/sh4/Makefile b/arch/sh/kernel/cpu/sh4/Makefile
index dadd6bffc128..d608557c7a3f 100644
--- a/arch/sh/kernel/cpu/sh4/Makefile
+++ b/arch/sh/kernel/cpu/sh4/Makefile
@@ -5,7 +5,7 @@
 obj-y	:= probe.o common.o
 common-y	+= $(addprefix ../sh3/, entry.o ex.o)
 
-obj-$(CONFIG_SH_FPU)			+= fpu.o
+obj-$(CONFIG_SH_FPU)			+= fpu.o softfloat.o
 obj-$(CONFIG_SH_STORE_QUEUES)		+= sq.o
 
 # CPU subtype setup
diff --git a/arch/sh/kernel/cpu/sh4/fpu.c b/arch/sh/kernel/cpu/sh4/fpu.c
index e624180b4467..817f9939cda6 100644
--- a/arch/sh/kernel/cpu/sh4/fpu.c
+++ b/arch/sh/kernel/cpu/sh4/fpu.c
@@ -1,7 +1,4 @@
-/* $Id: fpu.c,v 1.4 2004/01/13 05:52:11 kkojima Exp $
- *
- * linux/arch/sh/kernel/fpu.c
- *
+/*
  * Save/restore floating point context for signal handlers.
  *
  * This file is subject to the terms and conditions of the GNU General Public
@@ -9,15 +6,16 @@
  * for more details.
  *
  * Copyright (C) 1999, 2000  Kaz Kojima & Niibe Yutaka
+ * Copyright (C) 2006  ST Microelectronics Ltd. (denorm support)
  *
- * FIXME! These routines can be optimized in big endian case.
+ * FIXME! These routines have not been tested for big endian case.
  */
-
 #include <linux/sched.h>
 #include <linux/signal.h>
+#include <linux/io.h>
+#include <asm/cpu/fpu.h>
 #include <asm/processor.h>
 #include <asm/system.h>
-#include <asm/io.h>
 
 /* The PR (precision) bit in the FP Status Register must be clear when
  * an frchg instruction is executed, otherwise the instruction is undefined.
@@ -25,113 +23,122 @@
  */
 
 #define FPSCR_RCHG 0x00000000
+extern unsigned long long float64_div(unsigned long long a,
+				      unsigned long long b);
+extern unsigned long int float32_div(unsigned long int a, unsigned long int b);
+extern unsigned long long float64_mul(unsigned long long a,
+				      unsigned long long b);
+extern unsigned long int float32_mul(unsigned long int a, unsigned long int b);
+extern unsigned long long float64_add(unsigned long long a,
+				      unsigned long long b);
+extern unsigned long int float32_add(unsigned long int a, unsigned long int b);
+extern unsigned long long float64_sub(unsigned long long a,
+				      unsigned long long b);
+extern unsigned long int float32_sub(unsigned long int a, unsigned long int b);
 
+static unsigned int fpu_exception_flags;
 
 /*
  * Save FPU registers onto task structure.
  * Assume called with FPU enabled (SR.FD=0).
  */
-void
-save_fpu(struct task_struct *tsk, struct pt_regs *regs)
+void save_fpu(struct task_struct *tsk, struct pt_regs *regs)
 {
 	unsigned long dummy;
 
 	clear_tsk_thread_flag(tsk, TIF_USEDFPU);
 	enable_fpu();
-	asm volatile("sts.l	fpul, @-%0\n\t"
-		     "sts.l	fpscr, @-%0\n\t"
-		     "lds	%2, fpscr\n\t"
-		     "frchg\n\t"
-		     "fmov.s	fr15, @-%0\n\t"
-		     "fmov.s	fr14, @-%0\n\t"
-		     "fmov.s	fr13, @-%0\n\t"
-		     "fmov.s	fr12, @-%0\n\t"
-		     "fmov.s	fr11, @-%0\n\t"
-		     "fmov.s	fr10, @-%0\n\t"
-		     "fmov.s	fr9, @-%0\n\t"
-		     "fmov.s	fr8, @-%0\n\t"
-		     "fmov.s	fr7, @-%0\n\t"
-		     "fmov.s	fr6, @-%0\n\t"
-		     "fmov.s	fr5, @-%0\n\t"
-		     "fmov.s	fr4, @-%0\n\t"
-		     "fmov.s	fr3, @-%0\n\t"
-		     "fmov.s	fr2, @-%0\n\t"
-		     "fmov.s	fr1, @-%0\n\t"
-		     "fmov.s	fr0, @-%0\n\t"
-		     "frchg\n\t"
-		     "fmov.s	fr15, @-%0\n\t"
-		     "fmov.s	fr14, @-%0\n\t"
-		     "fmov.s	fr13, @-%0\n\t"
-		     "fmov.s	fr12, @-%0\n\t"
-		     "fmov.s	fr11, @-%0\n\t"
-		     "fmov.s	fr10, @-%0\n\t"
-		     "fmov.s	fr9, @-%0\n\t"
-		     "fmov.s	fr8, @-%0\n\t"
-		     "fmov.s	fr7, @-%0\n\t"
-		     "fmov.s	fr6, @-%0\n\t"
-		     "fmov.s	fr5, @-%0\n\t"
-		     "fmov.s	fr4, @-%0\n\t"
-		     "fmov.s	fr3, @-%0\n\t"
-		     "fmov.s	fr2, @-%0\n\t"
-		     "fmov.s	fr1, @-%0\n\t"
-		     "fmov.s	fr0, @-%0\n\t"
-		     "lds	%3, fpscr\n\t"
-		     : "=r" (dummy)
-		     : "0" ((char *)(&tsk->thread.fpu.hard.status)),
-		       "r" (FPSCR_RCHG),
-		       "r" (FPSCR_INIT)
-		     : "memory");
+	asm volatile ("sts.l	fpul, @-%0\n\t"
+		      "sts.l	fpscr, @-%0\n\t"
+		      "lds	%2, fpscr\n\t"
+		      "frchg\n\t"
+		      "fmov.s	fr15, @-%0\n\t"
+		      "fmov.s	fr14, @-%0\n\t"
+		      "fmov.s	fr13, @-%0\n\t"
+		      "fmov.s	fr12, @-%0\n\t"
+		      "fmov.s	fr11, @-%0\n\t"
+		      "fmov.s	fr10, @-%0\n\t"
+		      "fmov.s	fr9, @-%0\n\t"
+		      "fmov.s	fr8, @-%0\n\t"
+		      "fmov.s	fr7, @-%0\n\t"
+		      "fmov.s	fr6, @-%0\n\t"
+		      "fmov.s	fr5, @-%0\n\t"
+		      "fmov.s	fr4, @-%0\n\t"
+		      "fmov.s	fr3, @-%0\n\t"
+		      "fmov.s	fr2, @-%0\n\t"
+		      "fmov.s	fr1, @-%0\n\t"
+		      "fmov.s	fr0, @-%0\n\t"
+		      "frchg\n\t"
+		      "fmov.s	fr15, @-%0\n\t"
+		      "fmov.s	fr14, @-%0\n\t"
+		      "fmov.s	fr13, @-%0\n\t"
+		      "fmov.s	fr12, @-%0\n\t"
+		      "fmov.s	fr11, @-%0\n\t"
+		      "fmov.s	fr10, @-%0\n\t"
+		      "fmov.s	fr9, @-%0\n\t"
+		      "fmov.s	fr8, @-%0\n\t"
+		      "fmov.s	fr7, @-%0\n\t"
+		      "fmov.s	fr6, @-%0\n\t"
+		      "fmov.s	fr5, @-%0\n\t"
+		      "fmov.s	fr4, @-%0\n\t"
+		      "fmov.s	fr3, @-%0\n\t"
+		      "fmov.s	fr2, @-%0\n\t"
+		      "fmov.s	fr1, @-%0\n\t"
+		      "fmov.s	fr0, @-%0\n\t"
+		      "lds	%3, fpscr\n\t":"=r" (dummy)
+		      :"0"((char *)(&tsk->thread.fpu.hard.status)),
+		      "r"(FPSCR_RCHG), "r"(FPSCR_INIT)
+		      :"memory");
 
 	disable_fpu();
 	release_fpu(regs);
 }
 
-static void
-restore_fpu(struct task_struct *tsk)
+static void restore_fpu(struct task_struct *tsk)
 {
 	unsigned long dummy;
 
 	enable_fpu();
-	asm volatile("lds	%2, fpscr\n\t"
-		     "fmov.s	@%0+, fr0\n\t"
-		     "fmov.s	@%0+, fr1\n\t"
-		     "fmov.s	@%0+, fr2\n\t"
-		     "fmov.s	@%0+, fr3\n\t"
-		     "fmov.s	@%0+, fr4\n\t"
-		     "fmov.s	@%0+, fr5\n\t"
-		     "fmov.s	@%0+, fr6\n\t"
-		     "fmov.s	@%0+, fr7\n\t"
-		     "fmov.s	@%0+, fr8\n\t"
-		     "fmov.s	@%0+, fr9\n\t"
-		     "fmov.s	@%0+, fr10\n\t"
-		     "fmov.s	@%0+, fr11\n\t"
-		     "fmov.s	@%0+, fr12\n\t"
-		     "fmov.s	@%0+, fr13\n\t"
-		     "fmov.s	@%0+, fr14\n\t"
-		     "fmov.s	@%0+, fr15\n\t"
-		     "frchg\n\t"
-		     "fmov.s	@%0+, fr0\n\t"
-		     "fmov.s	@%0+, fr1\n\t"
-		     "fmov.s	@%0+, fr2\n\t"
-		     "fmov.s	@%0+, fr3\n\t"
-		     "fmov.s	@%0+, fr4\n\t"
-		     "fmov.s	@%0+, fr5\n\t"
-		     "fmov.s	@%0+, fr6\n\t"
-		     "fmov.s	@%0+, fr7\n\t"
-		     "fmov.s	@%0+, fr8\n\t"
-		     "fmov.s	@%0+, fr9\n\t"
-		     "fmov.s	@%0+, fr10\n\t"
-		     "fmov.s	@%0+, fr11\n\t"
-		     "fmov.s	@%0+, fr12\n\t"
-		     "fmov.s	@%0+, fr13\n\t"
-		     "fmov.s	@%0+, fr14\n\t"
-		     "fmov.s	@%0+, fr15\n\t"
-		     "frchg\n\t"
-		     "lds.l	@%0+, fpscr\n\t"
-		     "lds.l	@%0+, fpul\n\t"
-		     : "=r" (dummy)
-		     : "0" (&tsk->thread.fpu), "r" (FPSCR_RCHG)
-		     : "memory");
+	asm volatile ("lds	%2, fpscr\n\t"
+		      "fmov.s	@%0+, fr0\n\t"
+		      "fmov.s	@%0+, fr1\n\t"
+		      "fmov.s	@%0+, fr2\n\t"
+		      "fmov.s	@%0+, fr3\n\t"
+		      "fmov.s	@%0+, fr4\n\t"
+		      "fmov.s	@%0+, fr5\n\t"
+		      "fmov.s	@%0+, fr6\n\t"
+		      "fmov.s	@%0+, fr7\n\t"
+		      "fmov.s	@%0+, fr8\n\t"
+		      "fmov.s	@%0+, fr9\n\t"
+		      "fmov.s	@%0+, fr10\n\t"
+		      "fmov.s	@%0+, fr11\n\t"
+		      "fmov.s	@%0+, fr12\n\t"
+		      "fmov.s	@%0+, fr13\n\t"
+		      "fmov.s	@%0+, fr14\n\t"
+		      "fmov.s	@%0+, fr15\n\t"
+		      "frchg\n\t"
+		      "fmov.s	@%0+, fr0\n\t"
+		      "fmov.s	@%0+, fr1\n\t"
+		      "fmov.s	@%0+, fr2\n\t"
+		      "fmov.s	@%0+, fr3\n\t"
+		      "fmov.s	@%0+, fr4\n\t"
+		      "fmov.s	@%0+, fr5\n\t"
+		      "fmov.s	@%0+, fr6\n\t"
+		      "fmov.s	@%0+, fr7\n\t"
+		      "fmov.s	@%0+, fr8\n\t"
+		      "fmov.s	@%0+, fr9\n\t"
+		      "fmov.s	@%0+, fr10\n\t"
+		      "fmov.s	@%0+, fr11\n\t"
+		      "fmov.s	@%0+, fr12\n\t"
+		      "fmov.s	@%0+, fr13\n\t"
+		      "fmov.s	@%0+, fr14\n\t"
+		      "fmov.s	@%0+, fr15\n\t"
+		      "frchg\n\t"
+		      "lds.l	@%0+, fpscr\n\t"
+		      "lds.l	@%0+, fpul\n\t"
+		      :"=r" (dummy)
+		      :"0"(&tsk->thread.fpu), "r"(FPSCR_RCHG)
+		      :"memory");
 	disable_fpu();
 }
 
@@ -141,61 +148,59 @@ restore_fpu(struct task_struct *tsk)
  * double precision represents signaling NANS.
  */
 
-static void
-fpu_init(void)
+static void fpu_init(void)
 {
 	enable_fpu();
-	asm volatile("lds	%0, fpul\n\t"
-		     "lds	%1, fpscr\n\t"
-		     "fsts	fpul, fr0\n\t"
-		     "fsts	fpul, fr1\n\t"
-		     "fsts	fpul, fr2\n\t"
-		     "fsts	fpul, fr3\n\t"
-		     "fsts	fpul, fr4\n\t"
-		     "fsts	fpul, fr5\n\t"
-		     "fsts	fpul, fr6\n\t"
-		     "fsts	fpul, fr7\n\t"
-		     "fsts	fpul, fr8\n\t"
-		     "fsts	fpul, fr9\n\t"
-		     "fsts	fpul, fr10\n\t"
-		     "fsts	fpul, fr11\n\t"
-		     "fsts	fpul, fr12\n\t"
-		     "fsts	fpul, fr13\n\t"
-		     "fsts	fpul, fr14\n\t"
-		     "fsts	fpul, fr15\n\t"
-		     "frchg\n\t"
-		     "fsts	fpul, fr0\n\t"
-		     "fsts	fpul, fr1\n\t"
-		     "fsts	fpul, fr2\n\t"
-		     "fsts	fpul, fr3\n\t"
-		     "fsts	fpul, fr4\n\t"
-		     "fsts	fpul, fr5\n\t"
-		     "fsts	fpul, fr6\n\t"
-		     "fsts	fpul, fr7\n\t"
-		     "fsts	fpul, fr8\n\t"
-		     "fsts	fpul, fr9\n\t"
-		     "fsts	fpul, fr10\n\t"
-		     "fsts	fpul, fr11\n\t"
-		     "fsts	fpul, fr12\n\t"
-		     "fsts	fpul, fr13\n\t"
-		     "fsts	fpul, fr14\n\t"
-		     "fsts	fpul, fr15\n\t"
-		     "frchg\n\t"
-		     "lds	%2, fpscr\n\t"
-		     : /* no output */
-		     : "r" (0), "r" (FPSCR_RCHG), "r" (FPSCR_INIT));
+	asm volatile (	"lds	%0, fpul\n\t"
+			"lds	%1, fpscr\n\t"
+			"fsts	fpul, fr0\n\t"
+			"fsts	fpul, fr1\n\t"
+			"fsts	fpul, fr2\n\t"
+			"fsts	fpul, fr3\n\t"
+			"fsts	fpul, fr4\n\t"
+			"fsts	fpul, fr5\n\t"
+			"fsts	fpul, fr6\n\t"
+			"fsts	fpul, fr7\n\t"
+			"fsts	fpul, fr8\n\t"
+			"fsts	fpul, fr9\n\t"
+			"fsts	fpul, fr10\n\t"
+			"fsts	fpul, fr11\n\t"
+			"fsts	fpul, fr12\n\t"
+			"fsts	fpul, fr13\n\t"
+			"fsts	fpul, fr14\n\t"
+			"fsts	fpul, fr15\n\t"
+			"frchg\n\t"
+			"fsts	fpul, fr0\n\t"
+			"fsts	fpul, fr1\n\t"
+			"fsts	fpul, fr2\n\t"
+			"fsts	fpul, fr3\n\t"
+			"fsts	fpul, fr4\n\t"
+			"fsts	fpul, fr5\n\t"
+			"fsts	fpul, fr6\n\t"
+			"fsts	fpul, fr7\n\t"
+			"fsts	fpul, fr8\n\t"
+			"fsts	fpul, fr9\n\t"
+			"fsts	fpul, fr10\n\t"
+			"fsts	fpul, fr11\n\t"
+			"fsts	fpul, fr12\n\t"
+			"fsts	fpul, fr13\n\t"
+			"fsts	fpul, fr14\n\t"
+			"fsts	fpul, fr15\n\t"
+			"frchg\n\t"
+			"lds	%2, fpscr\n\t"
+			:	/* no output */
+			:"r" (0), "r"(FPSCR_RCHG), "r"(FPSCR_INIT));
 	disable_fpu();
 }
 
 /**
- *	denormal_to_double - Given denormalized float number,
- *	                     store double float
+ *      denormal_to_double - Given denormalized float number,
+ *                           store double float
  *
- *	@fpu: Pointer to sh_fpu_hard structure
- *	@n: Index to FP register
+ *      @fpu: Pointer to sh_fpu_hard structure
+ *      @n: Index to FP register
  */
-static void
-denormal_to_double (struct sh_fpu_hard_struct *fpu, int n)
+static void denormal_to_double(struct sh_fpu_hard_struct *fpu, int n)
 {
 	unsigned long du, dl;
 	unsigned long x = fpu->fpul;
@@ -212,7 +217,7 @@ denormal_to_double (struct sh_fpu_hard_struct *fpu, int n)
 		dl = x << 29;
 
 		fpu->fp_regs[n] = du;
-		fpu->fp_regs[n+1] = dl;
+		fpu->fp_regs[n + 1] = dl;
 	}
 }
 
@@ -223,67 +228,191 @@ denormal_to_double (struct sh_fpu_hard_struct *fpu, int n)
  *
  *	Returns 1 when it's handled (should not cause exception).
  */
-static int
-ieee_fpe_handler (struct pt_regs *regs)
+static int ieee_fpe_handler(struct pt_regs *regs)
 {
-	unsigned short insn = *(unsigned short *) regs->pc;
+	unsigned short insn = *(unsigned short *)regs->pc;
 	unsigned short finsn;
 	unsigned long nextpc;
 	int nib[4] = {
 		(insn >> 12) & 0xf,
 		(insn >> 8) & 0xf,
 		(insn >> 4) & 0xf,
-		insn & 0xf};
-
-	if (nib[0] == 0xb ||
-	    (nib[0] == 0x4 && nib[2] == 0x0 && nib[3] == 0xb)) /* bsr & jsr */
-		regs->pr = regs->pc + 4;
-	if (nib[0] == 0xa || nib[0] == 0xb) { /* bra & bsr */
-		nextpc = regs->pc + 4 + ((short) ((insn & 0xfff) << 4) >> 3);
-		finsn = *(unsigned short *) (regs->pc + 2);
-	} else if (nib[0] == 0x8 && nib[1] == 0xd) { /* bt/s */
+		insn & 0xf
+	};
+
+	if (nib[0] == 0xb || (nib[0] == 0x4 && nib[2] == 0x0 && nib[3] == 0xb))
+		regs->pr = regs->pc + 4;  /* bsr & jsr */
+
+	if (nib[0] == 0xa || nib[0] == 0xb) {
+		/* bra & bsr */
+		nextpc = regs->pc + 4 + ((short)((insn & 0xfff) << 4) >> 3);
+		finsn = *(unsigned short *)(regs->pc + 2);
+	} else if (nib[0] == 0x8 && nib[1] == 0xd) {
+		/* bt/s */
 		if (regs->sr & 1)
-			nextpc = regs->pc + 4 + ((char) (insn & 0xff) << 1);
+			nextpc = regs->pc + 4 + ((char)(insn & 0xff) << 1);
 		else
 			nextpc = regs->pc + 4;
-		finsn = *(unsigned short *) (regs->pc + 2);
-	} else if (nib[0] == 0x8 && nib[1] == 0xf) { /* bf/s */
+		finsn = *(unsigned short *)(regs->pc + 2);
+	} else if (nib[0] == 0x8 && nib[1] == 0xf) {
+		/* bf/s */
 		if (regs->sr & 1)
 			nextpc = regs->pc + 4;
 		else
-			nextpc = regs->pc + 4 + ((char) (insn & 0xff) << 1);
-		finsn = *(unsigned short *) (regs->pc + 2);
+			nextpc = regs->pc + 4 + ((char)(insn & 0xff) << 1);
+		finsn = *(unsigned short *)(regs->pc + 2);
 	} else if (nib[0] == 0x4 && nib[3] == 0xb &&
-		 (nib[2] == 0x0 || nib[2] == 0x2)) { /* jmp & jsr */
+		   (nib[2] == 0x0 || nib[2] == 0x2)) {
+		/* jmp & jsr */
 		nextpc = regs->regs[nib[1]];
-		finsn = *(unsigned short *) (regs->pc + 2);
+		finsn = *(unsigned short *)(regs->pc + 2);
 	} else if (nib[0] == 0x0 && nib[3] == 0x3 &&
-		 (nib[2] == 0x0 || nib[2] == 0x2)) { /* braf & bsrf */
+		   (nib[2] == 0x0 || nib[2] == 0x2)) {
+		/* braf & bsrf */
 		nextpc = regs->pc + 4 + regs->regs[nib[1]];
-		finsn = *(unsigned short *) (regs->pc + 2);
-	} else if (insn == 0x000b) { /* rts */
+		finsn = *(unsigned short *)(regs->pc + 2);
+	} else if (insn == 0x000b) {
+		/* rts */
 		nextpc = regs->pr;
-		finsn = *(unsigned short *) (regs->pc + 2);
+		finsn = *(unsigned short *)(regs->pc + 2);
 	} else {
 		nextpc = regs->pc + instruction_size(insn);
 		finsn = insn;
 	}
 
-	if ((finsn & 0xf1ff) == 0xf0ad) { /* fcnvsd */
+	if ((finsn & 0xf1ff) == 0xf0ad) {
+		/* fcnvsd */
 		struct task_struct *tsk = current;
 
 		save_fpu(tsk, regs);
-		if ((tsk->thread.fpu.hard.fpscr & (1 << 17))) {
+		if ((tsk->thread.fpu.hard.fpscr & FPSCR_CAUSE_ERROR))
 			/* FPU error */
-			denormal_to_double (&tsk->thread.fpu.hard,
-					    (finsn >> 8) & 0xf);
-			tsk->thread.fpu.hard.fpscr &=
-				~(FPSCR_CAUSE_MASK | FPSCR_FLAG_MASK);
-			grab_fpu(regs);
-			restore_fpu(tsk);
-			set_tsk_thread_flag(tsk, TIF_USEDFPU);
+			denormal_to_double(&tsk->thread.fpu.hard,
+					   (finsn >> 8) & 0xf);
+		else
+			return 0;
+
+		regs->pc = nextpc;
+		return 1;
+	} else if ((finsn & 0xf00f) == 0xf002) {
+		/* fmul */
+		struct task_struct *tsk = current;
+		int fpscr;
+		int n, m, prec;
+		unsigned int hx, hy;
+
+		n = (finsn >> 8) & 0xf;
+		m = (finsn >> 4) & 0xf;
+		hx = tsk->thread.fpu.hard.fp_regs[n];
+		hy = tsk->thread.fpu.hard.fp_regs[m];
+		fpscr = tsk->thread.fpu.hard.fpscr;
+		prec = fpscr & FPSCR_DBL_PRECISION;
+
+		if ((fpscr & FPSCR_CAUSE_ERROR)
+		    && (prec && ((hx & 0x7fffffff) < 0x00100000
+				 || (hy & 0x7fffffff) < 0x00100000))) {
+			long long llx, lly;
+
+			/* FPU error because of denormal (doubles) */
+			llx = ((long long)hx << 32)
+			    | tsk->thread.fpu.hard.fp_regs[n + 1];
+			lly = ((long long)hy << 32)
+			    | tsk->thread.fpu.hard.fp_regs[m + 1];
+			llx = float64_mul(llx, lly);
+			tsk->thread.fpu.hard.fp_regs[n] = llx >> 32;
+			tsk->thread.fpu.hard.fp_regs[n + 1] = llx & 0xffffffff;
+		} else if ((fpscr & FPSCR_CAUSE_ERROR)
+			   && (!prec && ((hx & 0x7fffffff) < 0x00800000
+					 || (hy & 0x7fffffff) < 0x00800000))) {
+			/* FPU error because of denormal (floats) */
+			hx = float32_mul(hx, hy);
+			tsk->thread.fpu.hard.fp_regs[n] = hx;
+		} else
+			return 0;
+
+		regs->pc = nextpc;
+		return 1;
+	} else if ((finsn & 0xf00e) == 0xf000) {
+		/* fadd, fsub */
+		struct task_struct *tsk = current;
+		int fpscr;
+		int n, m, prec;
+		unsigned int hx, hy;
+
+		n = (finsn >> 8) & 0xf;
+		m = (finsn >> 4) & 0xf;
+		hx = tsk->thread.fpu.hard.fp_regs[n];
+		hy = tsk->thread.fpu.hard.fp_regs[m];
+		fpscr = tsk->thread.fpu.hard.fpscr;
+		prec = fpscr & FPSCR_DBL_PRECISION;
+
+		if ((fpscr & FPSCR_CAUSE_ERROR)
+		    && (prec && ((hx & 0x7fffffff) < 0x00100000
+				 || (hy & 0x7fffffff) < 0x00100000))) {
+			long long llx, lly;
+
+			/* FPU error because of denormal (doubles) */
+			llx = ((long long)hx << 32)
+			    | tsk->thread.fpu.hard.fp_regs[n + 1];
+			lly = ((long long)hy << 32)
+			    | tsk->thread.fpu.hard.fp_regs[m + 1];
+			if ((finsn & 0xf00f) == 0xf000)
+				llx = float64_add(llx, lly);
+			else
+				llx = float64_sub(llx, lly);
+			tsk->thread.fpu.hard.fp_regs[n] = llx >> 32;
+			tsk->thread.fpu.hard.fp_regs[n + 1] = llx & 0xffffffff;
+		} else if ((fpscr & FPSCR_CAUSE_ERROR)
+			   && (!prec && ((hx & 0x7fffffff) < 0x00800000
+					 || (hy & 0x7fffffff) < 0x00800000))) {
+			/* FPU error because of denormal (floats) */
+			if ((finsn & 0xf00f) == 0xf000)
+				hx = float32_add(hx, hy);
+			else
+				hx = float32_sub(hx, hy);
+			tsk->thread.fpu.hard.fp_regs[n] = hx;
+		} else
+			return 0;
+
+		regs->pc = nextpc;
+		return 1;
+	} else if ((finsn & 0xf003) == 0xf003) {
+		/* fdiv */
+		struct task_struct *tsk = current;
+		int fpscr;
+		int n, m, prec;
+		unsigned int hx, hy;
+
+		n = (finsn >> 8) & 0xf;
+		m = (finsn >> 4) & 0xf;
+		hx = tsk->thread.fpu.hard.fp_regs[n];
+		hy = tsk->thread.fpu.hard.fp_regs[m];
+		fpscr = tsk->thread.fpu.hard.fpscr;
+		prec = fpscr & FPSCR_DBL_PRECISION;
+
+		if ((fpscr & FPSCR_CAUSE_ERROR)
+		    && (prec && ((hx & 0x7fffffff) < 0x00100000
+				 || (hy & 0x7fffffff) < 0x00100000))) {
+			long long llx, lly;
+
+			/* FPU error because of denormal (doubles) */
+			llx = ((long long)hx << 32)
+			    | tsk->thread.fpu.hard.fp_regs[n + 1];
+			lly = ((long long)hy << 32)
+			    | tsk->thread.fpu.hard.fp_regs[m + 1];
+
+			llx = float64_div(llx, lly);
+
+			tsk->thread.fpu.hard.fp_regs[n] = llx >> 32;
+			tsk->thread.fpu.hard.fp_regs[n + 1] = llx & 0xffffffff;
+		} else if ((fpscr & FPSCR_CAUSE_ERROR)
+			   && (!prec && ((hx & 0x7fffffff) < 0x00800000
+					 || (hy & 0x7fffffff) < 0x00800000))) {
+			/* FPU error because of denormal (floats) */
+			hx = float32_div(hx, hy);
+			tsk->thread.fpu.hard.fp_regs[n] = hx;
 		} else
-			force_sig(SIGFPE, tsk);
+			return 0;
 
 		regs->pc = nextpc;
 		return 1;
@@ -292,16 +421,41 @@ ieee_fpe_handler (struct pt_regs *regs)
 	return 0;
 }
 
+void float_raise(unsigned int flags)
+{
+	fpu_exception_flags |= flags;
+}
+
+int float_rounding_mode(void)
+{
+	struct task_struct *tsk = current;
+	int roundingMode = FPSCR_ROUNDING_MODE(tsk->thread.fpu.hard.fpscr);
+	return roundingMode;
+}
+
 BUILD_TRAP_HANDLER(fpu_error)
 {
 	struct task_struct *tsk = current;
 	TRAP_HANDLER_DECL;
 
-	if (ieee_fpe_handler(regs))
-		return;
-
-	regs->pc += 2;
 	save_fpu(tsk, regs);
+	fpu_exception_flags = 0;
+	if (ieee_fpe_handler(regs)) {
+		tsk->thread.fpu.hard.fpscr &=
+		    ~(FPSCR_CAUSE_MASK | FPSCR_FLAG_MASK);
+		tsk->thread.fpu.hard.fpscr |= fpu_exception_flags;
+		/* Set the FPSCR flag as well as cause bits - simply
+		 * replicate the cause */
+		tsk->thread.fpu.hard.fpscr |= (fpu_exception_flags >> 10);
+		grab_fpu(regs);
+		restore_fpu(tsk);
+		set_tsk_thread_flag(tsk, TIF_USEDFPU);
+		if ((((tsk->thread.fpu.hard.fpscr & FPSCR_ENABLE_MASK) >> 7) &
+		     (fpu_exception_flags >> 2)) == 0) {
+			return;
+		}
+	}
+
 	force_sig(SIGFPE, tsk);
 }
 
@@ -319,7 +473,7 @@ BUILD_TRAP_HANDLER(fpu_state_restore)
 	if (used_math()) {
 		/* Using the FPU again.  */
 		restore_fpu(tsk);
-	} else	{
+	} else {
 		/* First time FPU user.  */
 		fpu_init();
 		set_used_math();
diff --git a/arch/sh/kernel/cpu/sh4/softfloat.c b/arch/sh/kernel/cpu/sh4/softfloat.c
new file mode 100644
index 000000000000..7b2d337ee412
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh4/softfloat.c
@@ -0,0 +1,892 @@
+/*
+ * Floating point emulation support for subnormalised numbers on SH4
+ * architecture This file is derived from the SoftFloat IEC/IEEE
+ * Floating-point Arithmetic Package, Release 2 the original license of
+ * which is reproduced below.
+ *
+ * ========================================================================
+ *
+ * This C source file is part of the SoftFloat IEC/IEEE Floating-point
+ * Arithmetic Package, Release 2.
+ *
+ * Written by John R. Hauser.  This work was made possible in part by the
+ * International Computer Science Institute, located at Suite 600, 1947 Center
+ * Street, Berkeley, California 94704.  Funding was partially provided by the
+ * National Science Foundation under grant MIP-9311980.  The original version
+ * of this code was written as part of a project to build a fixed-point vector
+ * processor in collaboration with the University of California at Berkeley,
+ * overseen by Profs. Nelson Morgan and John Wawrzynek.  More information
+ * is available through the web page `http://HTTP.CS.Berkeley.EDU/~jhauser/
+ * arithmetic/softfloat.html'.
+ *
+ * THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE.  Although reasonable effort
+ * has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT
+ * TIMES RESULT IN INCORRECT BEHAVIOR.  USE OF THIS SOFTWARE IS RESTRICTED TO
+ * PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY
+ * AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE.
+ *
+ * Derivative works are acceptable, even for commercial purposes, so long as
+ * (1) they include prominent notice that the work is derivative, and (2) they
+ * include prominent notice akin to these three paragraphs for those parts of
+ * this code that are retained.
+ *
+ * ========================================================================
+ *
+ * SH4 modifications by Ismail Dhaoui <ismail.dhaoui@st.com>
+ * and Kamel Khelifi <kamel.khelifi@st.com>
+ */
+#include <linux/kernel.h>
+#include <asm/cpu/fpu.h>
+
+#define LIT64( a ) a##LL
+
+typedef char flag;
+typedef unsigned char uint8;
+typedef signed char int8;
+typedef int uint16;
+typedef int int16;
+typedef unsigned int uint32;
+typedef signed int int32;
+
+typedef unsigned long long int bits64;
+typedef signed long long int sbits64;
+
+typedef unsigned char bits8;
+typedef signed char sbits8;
+typedef unsigned short int bits16;
+typedef signed short int sbits16;
+typedef unsigned int bits32;
+typedef signed int sbits32;
+
+typedef unsigned long long int uint64;
+typedef signed long long int int64;
+
+typedef unsigned long int float32;
+typedef unsigned long long float64;
+
+extern void float_raise(unsigned int flags);	/* in fpu.c */
+extern int float_rounding_mode(void);	/* in fpu.c */
+
+inline bits64 extractFloat64Frac(float64 a);
+inline flag extractFloat64Sign(float64 a);
+inline int16 extractFloat64Exp(float64 a);
+inline int16 extractFloat32Exp(float32 a);
+inline flag extractFloat32Sign(float32 a);
+inline bits32 extractFloat32Frac(float32 a);
+inline float64 packFloat64(flag zSign, int16 zExp, bits64 zSig);
+inline void shift64RightJamming(bits64 a, int16 count, bits64 * zPtr);
+inline float32 packFloat32(flag zSign, int16 zExp, bits32 zSig);
+inline void shift32RightJamming(bits32 a, int16 count, bits32 * zPtr);
+float64 float64_sub(float64 a, float64 b);
+float32 float32_sub(float32 a, float32 b);
+float32 float32_add(float32 a, float32 b);
+float64 float64_add(float64 a, float64 b);
+float64 float64_div(float64 a, float64 b);
+float32 float32_div(float32 a, float32 b);
+float32 float32_mul(float32 a, float32 b);
+float64 float64_mul(float64 a, float64 b);
+inline void add128(bits64 a0, bits64 a1, bits64 b0, bits64 b1, bits64 * z0Ptr,
+		   bits64 * z1Ptr);
+inline void sub128(bits64 a0, bits64 a1, bits64 b0, bits64 b1, bits64 * z0Ptr,
+		   bits64 * z1Ptr);
+inline void mul64To128(bits64 a, bits64 b, bits64 * z0Ptr, bits64 * z1Ptr);
+
+static int8 countLeadingZeros32(bits32 a);
+static int8 countLeadingZeros64(bits64 a);
+static float64 normalizeRoundAndPackFloat64(flag zSign, int16 zExp,
+					    bits64 zSig);
+static float64 subFloat64Sigs(float64 a, float64 b, flag zSign);
+static float64 addFloat64Sigs(float64 a, float64 b, flag zSign);
+static float32 roundAndPackFloat32(flag zSign, int16 zExp, bits32 zSig);
+static float32 normalizeRoundAndPackFloat32(flag zSign, int16 zExp,
+					    bits32 zSig);
+static float64 roundAndPackFloat64(flag zSign, int16 zExp, bits64 zSig);
+static float32 subFloat32Sigs(float32 a, float32 b, flag zSign);
+static float32 addFloat32Sigs(float32 a, float32 b, flag zSign);
+static void normalizeFloat64Subnormal(bits64 aSig, int16 * zExpPtr,
+				      bits64 * zSigPtr);
+static bits64 estimateDiv128To64(bits64 a0, bits64 a1, bits64 b);
+static void normalizeFloat32Subnormal(bits32 aSig, int16 * zExpPtr,
+				      bits32 * zSigPtr);
+
+inline bits64 extractFloat64Frac(float64 a)
+{
+	return a & LIT64(0x000FFFFFFFFFFFFF);
+}
+
+inline flag extractFloat64Sign(float64 a)
+{
+	return a >> 63;
+}
+
+inline int16 extractFloat64Exp(float64 a)
+{
+	return (a >> 52) & 0x7FF;
+}
+
+inline int16 extractFloat32Exp(float32 a)
+{
+	return (a >> 23) & 0xFF;
+}
+
+inline flag extractFloat32Sign(float32 a)
+{
+	return a >> 31;
+}
+
+inline bits32 extractFloat32Frac(float32 a)
+{
+	return a & 0x007FFFFF;
+}
+
+inline float64 packFloat64(flag zSign, int16 zExp, bits64 zSig)
+{
+	return (((bits64) zSign) << 63) + (((bits64) zExp) << 52) + zSig;
+}
+
+inline void shift64RightJamming(bits64 a, int16 count, bits64 * zPtr)
+{
+	bits64 z;
+
+	if (count == 0) {
+		z = a;
+	} else if (count < 64) {
+		z = (a >> count) | ((a << ((-count) & 63)) != 0);
+	} else {
+		z = (a != 0);
+	}
+	*zPtr = z;
+}
+
+static int8 countLeadingZeros32(bits32 a)
+{
+	static const int8 countLeadingZerosHigh[] = {
+		8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
+		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+	};
+	int8 shiftCount;
+
+	shiftCount = 0;
+	if (a < 0x10000) {
+		shiftCount += 16;
+		a <<= 16;
+	}
+	if (a < 0x1000000) {
+		shiftCount += 8;
+		a <<= 8;
+	}
+	shiftCount += countLeadingZerosHigh[a >> 24];
+	return shiftCount;
+
+}
+
+static int8 countLeadingZeros64(bits64 a)
+{
+	int8 shiftCount;
+
+	shiftCount = 0;
+	if (a < ((bits64) 1) << 32) {
+		shiftCount += 32;
+	} else {
+		a >>= 32;
+	}
+	shiftCount += countLeadingZeros32(a);
+	return shiftCount;
+
+}
+
+static float64 normalizeRoundAndPackFloat64(flag zSign, int16 zExp, bits64 zSig)
+{
+	int8 shiftCount;
+
+	shiftCount = countLeadingZeros64(zSig) - 1;
+	return roundAndPackFloat64(zSign, zExp - shiftCount,
+				   zSig << shiftCount);
+
+}
+
+static float64 subFloat64Sigs(float64 a, float64 b, flag zSign)
+{
+	int16 aExp, bExp, zExp;
+	bits64 aSig, bSig, zSig;
+	int16 expDiff;
+
+	aSig = extractFloat64Frac(a);
+	aExp = extractFloat64Exp(a);
+	bSig = extractFloat64Frac(b);
+	bExp = extractFloat64Exp(b);
+	expDiff = aExp - bExp;
+	aSig <<= 10;
+	bSig <<= 10;
+	if (0 < expDiff)
+		goto aExpBigger;
+	if (expDiff < 0)
+		goto bExpBigger;
+	if (aExp == 0) {
+		aExp = 1;
+		bExp = 1;
+	}
+	if (bSig < aSig)
+		goto aBigger;
+	if (aSig < bSig)
+		goto bBigger;
+	return packFloat64(float_rounding_mode() == FPSCR_RM_ZERO, 0, 0);
+      bExpBigger:
+	if (bExp == 0x7FF) {
+		return packFloat64(zSign ^ 1, 0x7FF, 0);
+	}
+	if (aExp == 0) {
+		++expDiff;
+	} else {
+		aSig |= LIT64(0x4000000000000000);
+	}
+	shift64RightJamming(aSig, -expDiff, &aSig);
+	bSig |= LIT64(0x4000000000000000);
+      bBigger:
+	zSig = bSig - aSig;
+	zExp = bExp;
+	zSign ^= 1;
+	goto normalizeRoundAndPack;
+      aExpBigger:
+	if (aExp == 0x7FF) {
+		return a;
+	}
+	if (bExp == 0) {
+		--expDiff;
+	} else {
+		bSig |= LIT64(0x4000000000000000);
+	}
+	shift64RightJamming(bSig, expDiff, &bSig);
+	aSig |= LIT64(0x4000000000000000);
+      aBigger:
+	zSig = aSig - bSig;
+	zExp = aExp;
+      normalizeRoundAndPack:
+	--zExp;
+	return normalizeRoundAndPackFloat64(zSign, zExp, zSig);
+
+}
+static float64 addFloat64Sigs(float64 a, float64 b, flag zSign)
+{
+	int16 aExp, bExp, zExp;
+	bits64 aSig, bSig, zSig;
+	int16 expDiff;
+
+	aSig = extractFloat64Frac(a);
+	aExp = extractFloat64Exp(a);
+	bSig = extractFloat64Frac(b);
+	bExp = extractFloat64Exp(b);
+	expDiff = aExp - bExp;
+	aSig <<= 9;
+	bSig <<= 9;
+	if (0 < expDiff) {
+		if (aExp == 0x7FF) {
+			return a;
+		}
+		if (bExp == 0) {
+			--expDiff;
+		} else {
+			bSig |= LIT64(0x2000000000000000);
+		}
+		shift64RightJamming(bSig, expDiff, &bSig);
+		zExp = aExp;
+	} else if (expDiff < 0) {
+		if (bExp == 0x7FF) {
+			return packFloat64(zSign, 0x7FF, 0);
+		}
+		if (aExp == 0) {
+			++expDiff;
+		} else {
+			aSig |= LIT64(0x2000000000000000);
+		}
+		shift64RightJamming(aSig, -expDiff, &aSig);
+		zExp = bExp;
+	} else {
+		if (aExp == 0x7FF) {
+			return a;
+		}
+		if (aExp == 0)
+			return packFloat64(zSign, 0, (aSig + bSig) >> 9);
+		zSig = LIT64(0x4000000000000000) + aSig + bSig;
+		zExp = aExp;
+		goto roundAndPack;
+	}
+	aSig |= LIT64(0x2000000000000000);
+	zSig = (aSig + bSig) << 1;
+	--zExp;
+	if ((sbits64) zSig < 0) {
+		zSig = aSig + bSig;
+		++zExp;
+	}
+      roundAndPack:
+	return roundAndPackFloat64(zSign, zExp, zSig);
+
+}
+
+inline float32 packFloat32(flag zSign, int16 zExp, bits32 zSig)
+{
+	return (((bits32) zSign) << 31) + (((bits32) zExp) << 23) + zSig;
+}
+
+inline void shift32RightJamming(bits32 a, int16 count, bits32 * zPtr)
+{
+	bits32 z;
+	if (count == 0) {
+		z = a;
+	} else if (count < 32) {
+		z = (a >> count) | ((a << ((-count) & 31)) != 0);
+	} else {
+		z = (a != 0);
+	}
+	*zPtr = z;
+}
+
+static float32 roundAndPackFloat32(flag zSign, int16 zExp, bits32 zSig)
+{
+	flag roundNearestEven;
+	int8 roundIncrement, roundBits;
+	flag isTiny;
+
+	/* SH4 has only 2 rounding modes - round to nearest and round to zero */
+	roundNearestEven = (float_rounding_mode() == FPSCR_RM_NEAREST);
+	roundIncrement = 0x40;
+	if (!roundNearestEven) {
+		roundIncrement = 0;
+	}
+	roundBits = zSig & 0x7F;
+	if (0xFD <= (bits16) zExp) {
+		if ((0xFD < zExp)
+		    || ((zExp == 0xFD)
+			&& ((sbits32) (zSig + roundIncrement) < 0))
+		    ) {
+			float_raise(FPSCR_CAUSE_OVERFLOW | FPSCR_CAUSE_INEXACT);
+			return packFloat32(zSign, 0xFF,
+					   0) - (roundIncrement == 0);
+		}
+		if (zExp < 0) {
+			isTiny = (zExp < -1)
+			    || (zSig + roundIncrement < 0x80000000);
+			shift32RightJamming(zSig, -zExp, &zSig);
+			zExp = 0;
+			roundBits = zSig & 0x7F;
+			if (isTiny && roundBits)
+				float_raise(FPSCR_CAUSE_UNDERFLOW);
+		}
+	}
+	if (roundBits)
+		float_raise(FPSCR_CAUSE_INEXACT);
+	zSig = (zSig + roundIncrement) >> 7;
+	zSig &= ~(((roundBits ^ 0x40) == 0) & roundNearestEven);
+	if (zSig == 0)
+		zExp = 0;
+	return packFloat32(zSign, zExp, zSig);
+
+}
+
+static float32 normalizeRoundAndPackFloat32(flag zSign, int16 zExp, bits32 zSig)
+{
+	int8 shiftCount;
+
+	shiftCount = countLeadingZeros32(zSig) - 1;
+	return roundAndPackFloat32(zSign, zExp - shiftCount,
+				   zSig << shiftCount);
+}
+
+static float64 roundAndPackFloat64(flag zSign, int16 zExp, bits64 zSig)
+{
+	flag roundNearestEven;
+	int16 roundIncrement, roundBits;
+	flag isTiny;
+
+	/* SH4 has only 2 rounding modes - round to nearest and round to zero */
+	roundNearestEven = (float_rounding_mode() == FPSCR_RM_NEAREST);
+	roundIncrement = 0x200;
+	if (!roundNearestEven) {
+		roundIncrement = 0;
+	}
+	roundBits = zSig & 0x3FF;
+	if (0x7FD <= (bits16) zExp) {
+		if ((0x7FD < zExp)
+		    || ((zExp == 0x7FD)
+			&& ((sbits64) (zSig + roundIncrement) < 0))
+		    ) {
+			float_raise(FPSCR_CAUSE_OVERFLOW | FPSCR_CAUSE_INEXACT);
+			return packFloat64(zSign, 0x7FF,
+					   0) - (roundIncrement == 0);
+		}
+		if (zExp < 0) {
+			isTiny = (zExp < -1)
+			    || (zSig + roundIncrement <
+				LIT64(0x8000000000000000));
+			shift64RightJamming(zSig, -zExp, &zSig);
+			zExp = 0;
+			roundBits = zSig & 0x3FF;
+			if (isTiny && roundBits)
+				float_raise(FPSCR_CAUSE_UNDERFLOW);
+		}
+	}
+	if (roundBits)
+		float_raise(FPSCR_CAUSE_INEXACT);
+	zSig = (zSig + roundIncrement) >> 10;
+	zSig &= ~(((roundBits ^ 0x200) == 0) & roundNearestEven);
+	if (zSig == 0)
+		zExp = 0;
+	return packFloat64(zSign, zExp, zSig);
+
+}
+
+static float32 subFloat32Sigs(float32 a, float32 b, flag zSign)
+{
+	int16 aExp, bExp, zExp;
+	bits32 aSig, bSig, zSig;
+	int16 expDiff;
+
+	aSig = extractFloat32Frac(a);
+	aExp = extractFloat32Exp(a);
+	bSig = extractFloat32Frac(b);
+	bExp = extractFloat32Exp(b);
+	expDiff = aExp - bExp;
+	aSig <<= 7;
+	bSig <<= 7;
+	if (0 < expDiff)
+		goto aExpBigger;
+	if (expDiff < 0)
+		goto bExpBigger;
+	if (aExp == 0) {
+		aExp = 1;
+		bExp = 1;
+	}
+	if (bSig < aSig)
+		goto aBigger;
+	if (aSig < bSig)
+		goto bBigger;
+	return packFloat32(float_rounding_mode() == FPSCR_RM_ZERO, 0, 0);
+      bExpBigger:
+	if (bExp == 0xFF) {
+		return packFloat32(zSign ^ 1, 0xFF, 0);
+	}
+	if (aExp == 0) {
+		++expDiff;
+	} else {
+		aSig |= 0x40000000;
+	}
+	shift32RightJamming(aSig, -expDiff, &aSig);
+	bSig |= 0x40000000;
+      bBigger:
+	zSig = bSig - aSig;
+	zExp = bExp;
+	zSign ^= 1;
+	goto normalizeRoundAndPack;
+      aExpBigger:
+	if (aExp == 0xFF) {
+		return a;
+	}
+	if (bExp == 0) {
+		--expDiff;
+	} else {
+		bSig |= 0x40000000;
+	}
+	shift32RightJamming(bSig, expDiff, &bSig);
+	aSig |= 0x40000000;
+      aBigger:
+	zSig = aSig - bSig;
+	zExp = aExp;
+      normalizeRoundAndPack:
+	--zExp;
+	return normalizeRoundAndPackFloat32(zSign, zExp, zSig);
+
+}
+
+static float32 addFloat32Sigs(float32 a, float32 b, flag zSign)
+{
+	int16 aExp, bExp, zExp;
+	bits32 aSig, bSig, zSig;
+	int16 expDiff;
+
+	aSig = extractFloat32Frac(a);
+	aExp = extractFloat32Exp(a);
+	bSig = extractFloat32Frac(b);
+	bExp = extractFloat32Exp(b);
+	expDiff = aExp - bExp;
+	aSig <<= 6;
+	bSig <<= 6;
+	if (0 < expDiff) {
+		if (aExp == 0xFF) {
+			return a;
+		}
+		if (bExp == 0) {
+			--expDiff;
+		} else {
+			bSig |= 0x20000000;
+		}
+		shift32RightJamming(bSig, expDiff, &bSig);
+		zExp = aExp;
+	} else if (expDiff < 0) {
+		if (bExp == 0xFF) {
+			return packFloat32(zSign, 0xFF, 0);
+		}
+		if (aExp == 0) {
+			++expDiff;
+		} else {
+			aSig |= 0x20000000;
+		}
+		shift32RightJamming(aSig, -expDiff, &aSig);
+		zExp = bExp;
+	} else {
+		if (aExp == 0xFF) {
+			return a;
+		}
+		if (aExp == 0)
+			return packFloat32(zSign, 0, (aSig + bSig) >> 6);
+		zSig = 0x40000000 + aSig + bSig;
+		zExp = aExp;
+		goto roundAndPack;
+	}
+	aSig |= 0x20000000;
+	zSig = (aSig + bSig) << 1;
+	--zExp;
+	if ((sbits32) zSig < 0) {
+		zSig = aSig + bSig;
+		++zExp;
+	}
+      roundAndPack:
+	return roundAndPackFloat32(zSign, zExp, zSig);
+
+}
+
+float64 float64_sub(float64 a, float64 b)
+{
+	flag aSign, bSign;
+
+	aSign = extractFloat64Sign(a);
+	bSign = extractFloat64Sign(b);
+	if (aSign == bSign) {
+		return subFloat64Sigs(a, b, aSign);
+	} else {
+		return addFloat64Sigs(a, b, aSign);
+	}
+
+}
+
+float32 float32_sub(float32 a, float32 b)
+{
+	flag aSign, bSign;
+
+	aSign = extractFloat32Sign(a);
+	bSign = extractFloat32Sign(b);
+	if (aSign == bSign) {
+		return subFloat32Sigs(a, b, aSign);
+	} else {
+		return addFloat32Sigs(a, b, aSign);
+	}
+
+}
+
+float32 float32_add(float32 a, float32 b)
+{
+	flag aSign, bSign;
+
+	aSign = extractFloat32Sign(a);
+	bSign = extractFloat32Sign(b);
+	if (aSign == bSign) {
+		return addFloat32Sigs(a, b, aSign);
+	} else {
+		return subFloat32Sigs(a, b, aSign);
+	}
+
+}
+
+float64 float64_add(float64 a, float64 b)
+{
+	flag aSign, bSign;
+
+	aSign = extractFloat64Sign(a);
+	bSign = extractFloat64Sign(b);
+	if (aSign == bSign) {
+		return addFloat64Sigs(a, b, aSign);
+	} else {
+		return subFloat64Sigs(a, b, aSign);
+	}
+}
+
+static void
+normalizeFloat64Subnormal(bits64 aSig, int16 * zExpPtr, bits64 * zSigPtr)
+{
+	int8 shiftCount;
+
+	shiftCount = countLeadingZeros64(aSig) - 11;
+	*zSigPtr = aSig << shiftCount;
+	*zExpPtr = 1 - shiftCount;
+}
+
+inline void add128(bits64 a0, bits64 a1, bits64 b0, bits64 b1, bits64 * z0Ptr,
+		   bits64 * z1Ptr)
+{
+	bits64 z1;
+
+	z1 = a1 + b1;
+	*z1Ptr = z1;
+	*z0Ptr = a0 + b0 + (z1 < a1);
+}
+
+inline void
+sub128(bits64 a0, bits64 a1, bits64 b0, bits64 b1, bits64 * z0Ptr,
+       bits64 * z1Ptr)
+{
+	*z1Ptr = a1 - b1;
+	*z0Ptr = a0 - b0 - (a1 < b1);
+}
+
+static bits64 estimateDiv128To64(bits64 a0, bits64 a1, bits64 b)
+{
+	bits64 b0, b1;
+	bits64 rem0, rem1, term0, term1;
+	bits64 z;
+	if (b <= a0)
+		return LIT64(0xFFFFFFFFFFFFFFFF);
+	b0 = b >> 32;
+	z = (b0 << 32 <= a0) ? LIT64(0xFFFFFFFF00000000) : (a0 / b0) << 32;
+	mul64To128(b, z, &term0, &term1);
+	sub128(a0, a1, term0, term1, &rem0, &rem1);
+	while (((sbits64) rem0) < 0) {
+		z -= LIT64(0x100000000);
+		b1 = b << 32;
+		add128(rem0, rem1, b0, b1, &rem0, &rem1);
+	}
+	rem0 = (rem0 << 32) | (rem1 >> 32);
+	z |= (b0 << 32 <= rem0) ? 0xFFFFFFFF : rem0 / b0;
+	return z;
+}
+
+inline void mul64To128(bits64 a, bits64 b, bits64 * z0Ptr, bits64 * z1Ptr)
+{
+	bits32 aHigh, aLow, bHigh, bLow;
+	bits64 z0, zMiddleA, zMiddleB, z1;
+
+	aLow = a;
+	aHigh = a >> 32;
+	bLow = b;
+	bHigh = b >> 32;
+	z1 = ((bits64) aLow) * bLow;
+	zMiddleA = ((bits64) aLow) * bHigh;
+	zMiddleB = ((bits64) aHigh) * bLow;
+	z0 = ((bits64) aHigh) * bHigh;
+	zMiddleA += zMiddleB;
+	z0 += (((bits64) (zMiddleA < zMiddleB)) << 32) + (zMiddleA >> 32);
+	zMiddleA <<= 32;
+	z1 += zMiddleA;
+	z0 += (z1 < zMiddleA);
+	*z1Ptr = z1;
+	*z0Ptr = z0;
+
+}
+
+static void normalizeFloat32Subnormal(bits32 aSig, int16 * zExpPtr,
+				      bits32 * zSigPtr)
+{
+	int8 shiftCount;
+
+	shiftCount = countLeadingZeros32(aSig) - 8;
+	*zSigPtr = aSig << shiftCount;
+	*zExpPtr = 1 - shiftCount;
+
+}
+
+float64 float64_div(float64 a, float64 b)
+{
+	flag aSign, bSign, zSign;
+	int16 aExp, bExp, zExp;
+	bits64 aSig, bSig, zSig;
+	bits64 rem0, rem1;
+	bits64 term0, term1;
+
+	aSig = extractFloat64Frac(a);
+	aExp = extractFloat64Exp(a);
+	aSign = extractFloat64Sign(a);
+	bSig = extractFloat64Frac(b);
+	bExp = extractFloat64Exp(b);
+	bSign = extractFloat64Sign(b);
+	zSign = aSign ^ bSign;
+	if (aExp == 0x7FF) {
+		if (bExp == 0x7FF) {
+		}
+		return packFloat64(zSign, 0x7FF, 0);
+	}
+	if (bExp == 0x7FF) {
+		return packFloat64(zSign, 0, 0);
+	}
+	if (bExp == 0) {
+		if (bSig == 0) {
+			if ((aExp | aSig) == 0) {
+				float_raise(FPSCR_CAUSE_INVALID);
+			}
+			return packFloat64(zSign, 0x7FF, 0);
+		}
+		normalizeFloat64Subnormal(bSig, &bExp, &bSig);
+	}
+	if (aExp == 0) {
+		if (aSig == 0)
+			return packFloat64(zSign, 0, 0);
+		normalizeFloat64Subnormal(aSig, &aExp, &aSig);
+	}
+	zExp = aExp - bExp + 0x3FD;
+	aSig = (aSig | LIT64(0x0010000000000000)) << 10;
+	bSig = (bSig | LIT64(0x0010000000000000)) << 11;
+	if (bSig <= (aSig + aSig)) {
+		aSig >>= 1;
+		++zExp;
+	}
+	zSig = estimateDiv128To64(aSig, 0, bSig);
+	if ((zSig & 0x1FF) <= 2) {
+		mul64To128(bSig, zSig, &term0, &term1);
+		sub128(aSig, 0, term0, term1, &rem0, &rem1);
+		while ((sbits64) rem0 < 0) {
+			--zSig;
+			add128(rem0, rem1, 0, bSig, &rem0, &rem1);
+		}
+		zSig |= (rem1 != 0);
+	}
+	return roundAndPackFloat64(zSign, zExp, zSig);
+
+}
+
+float32 float32_div(float32 a, float32 b)
+{
+	flag aSign, bSign, zSign;
+	int16 aExp, bExp, zExp;
+	bits32 aSig, bSig, zSig;
+
+	aSig = extractFloat32Frac(a);
+	aExp = extractFloat32Exp(a);
+	aSign = extractFloat32Sign(a);
+	bSig = extractFloat32Frac(b);
+	bExp = extractFloat32Exp(b);
+	bSign = extractFloat32Sign(b);
+	zSign = aSign ^ bSign;
+	if (aExp == 0xFF) {
+		if (bExp == 0xFF) {
+		}
+		return packFloat32(zSign, 0xFF, 0);
+	}
+	if (bExp == 0xFF) {
+		return packFloat32(zSign, 0, 0);
+	}
+	if (bExp == 0) {
+		if (bSig == 0) {
+			return packFloat32(zSign, 0xFF, 0);
+		}
+		normalizeFloat32Subnormal(bSig, &bExp, &bSig);
+	}
+	if (aExp == 0) {
+		if (aSig == 0)
+			return packFloat32(zSign, 0, 0);
+		normalizeFloat32Subnormal(aSig, &aExp, &aSig);
+	}
+	zExp = aExp - bExp + 0x7D;
+	aSig = (aSig | 0x00800000) << 7;
+	bSig = (bSig | 0x00800000) << 8;
+	if (bSig <= (aSig + aSig)) {
+		aSig >>= 1;
+		++zExp;
+	}
+	zSig = (((bits64) aSig) << 32) / bSig;
+	if ((zSig & 0x3F) == 0) {
+		zSig |= (((bits64) bSig) * zSig != ((bits64) aSig) << 32);
+	}
+	return roundAndPackFloat32(zSign, zExp, zSig);
+
+}
+
+float32 float32_mul(float32 a, float32 b)
+{
+	char aSign, bSign, zSign;
+	int aExp, bExp, zExp;
+	unsigned int aSig, bSig;
+	unsigned long long zSig64;
+	unsigned int zSig;
+
+	aSig = extractFloat32Frac(a);
+	aExp = extractFloat32Exp(a);
+	aSign = extractFloat32Sign(a);
+	bSig = extractFloat32Frac(b);
+	bExp = extractFloat32Exp(b);
+	bSign = extractFloat32Sign(b);
+	zSign = aSign ^ bSign;
+	if (aExp == 0) {
+		if (aSig == 0)
+			return packFloat32(zSign, 0, 0);
+		normalizeFloat32Subnormal(aSig, &aExp, &aSig);
+	}
+	if (bExp == 0) {
+		if (bSig == 0)
+			return packFloat32(zSign, 0, 0);
+		normalizeFloat32Subnormal(bSig, &bExp, &bSig);
+	}
+	if ((bExp == 0xff && bSig == 0) || (aExp == 0xff && aSig == 0))
+		return roundAndPackFloat32(zSign, 0xff, 0);
+
+	zExp = aExp + bExp - 0x7F;
+	aSig = (aSig | 0x00800000) << 7;
+	bSig = (bSig | 0x00800000) << 8;
+	shift64RightJamming(((unsigned long long)aSig) * bSig, 32, &zSig64);
+	zSig = zSig64;
+	if (0 <= (signed int)(zSig << 1)) {
+		zSig <<= 1;
+		--zExp;
+	}
+	return roundAndPackFloat32(zSign, zExp, zSig);
+
+}
+
+float64 float64_mul(float64 a, float64 b)
+{
+	char aSign, bSign, zSign;
+	int aExp, bExp, zExp;
+	unsigned long long int aSig, bSig, zSig0, zSig1;
+
+	aSig = extractFloat64Frac(a);
+	aExp = extractFloat64Exp(a);
+	aSign = extractFloat64Sign(a);
+	bSig = extractFloat64Frac(b);
+	bExp = extractFloat64Exp(b);
+	bSign = extractFloat64Sign(b);
+	zSign = aSign ^ bSign;
+
+	if (aExp == 0) {
+		if (aSig == 0)
+			return packFloat64(zSign, 0, 0);
+		normalizeFloat64Subnormal(aSig, &aExp, &aSig);
+	}
+	if (bExp == 0) {
+		if (bSig == 0)
+			return packFloat64(zSign, 0, 0);
+		normalizeFloat64Subnormal(bSig, &bExp, &bSig);
+	}
+	if ((aExp == 0x7ff && aSig == 0) || (bExp == 0x7ff && bSig == 0))
+		return roundAndPackFloat64(zSign, 0x7ff, 0);
+
+	zExp = aExp + bExp - 0x3FF;
+	aSig = (aSig | 0x0010000000000000LL) << 10;
+	bSig = (bSig | 0x0010000000000000LL) << 11;
+	mul64To128(aSig, bSig, &zSig0, &zSig1);
+	zSig0 |= (zSig1 != 0);
+	if (0 <= (signed long long int)(zSig0 << 1)) {
+		zSig0 <<= 1;
+		--zExp;
+	}
+	return roundAndPackFloat64(zSign, zExp, zSig0);
+}
diff --git a/include/asm-sh/cpu-sh4/fpu.h b/include/asm-sh/cpu-sh4/fpu.h
new file mode 100644
index 000000000000..febef7342528
--- /dev/null
+++ b/include/asm-sh/cpu-sh4/fpu.h
@@ -0,0 +1,32 @@
+/*
+ * linux/arch/sh/kernel/cpu/sh4/sh4_fpu.h
+ *
+ * Copyright (C) 2006 STMicroelectronics Limited
+ * Author: Carl Shaw <carl.shaw@st.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License Version 2.  See linux/COPYING for more information.
+ *
+ * Definitions for SH4 FPU operations
+ */
+
+#ifndef __CPU_SH4_FPU_H
+#define __CPU_SH4_FPU_H
+
+#define FPSCR_ENABLE_MASK	0x00000f80UL
+
+#define FPSCR_FMOV_DOUBLE	(1<<1)
+
+#define FPSCR_CAUSE_INEXACT	(1<<12)
+#define FPSCR_CAUSE_UNDERFLOW	(1<<13)
+#define FPSCR_CAUSE_OVERFLOW	(1<<14)
+#define FPSCR_CAUSE_DIVZERO	(1<<15)
+#define FPSCR_CAUSE_INVALID	(1<<16)
+#define FPSCR_CAUSE_ERROR 	(1<<17)
+
+#define FPSCR_DBL_PRECISION	(1<<19)
+#define FPSCR_ROUNDING_MODE(x)	((x >> 20) & 3)
+#define FPSCR_RM_NEAREST	(0)
+#define FPSCR_RM_ZERO		(1)
+
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From cd01204b82933754a7276838656420477f64d4b8 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 10 Dec 2007 15:50:28 +0900
Subject: sh: Encode L1/L2 cache shape in auxvt.

This adds in the L1I/L1D/L2 cache shape support to their respective
entries in the ELF auxvt, based on the Alpha implementation. We use
this on the userspace libc side for calculating a tightly packed
SHMLBA amongst other things.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/init.c | 29 ++++++++++++++++++++++++++++-
 arch/sh/kernel/setup.c    |  3 +++
 include/asm-sh/auxvec.h   | 12 ++++++++++++
 include/asm-sh/elf.h      | 19 ++++++++++++++++---
 include/asm-sh/system.h   |  2 +-
 5 files changed, 60 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c
index 0f0c76a842e4..80a31329ead9 100644
--- a/arch/sh/kernel/cpu/init.c
+++ b/arch/sh/kernel/cpu/init.c
@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
+#include <linux/log2.h>
 #include <asm/mmu_context.h>
 #include <asm/processor.h>
 #include <asm/uaccess.h>
@@ -20,6 +21,7 @@
 #include <asm/system.h>
 #include <asm/cacheflush.h>
 #include <asm/cache.h>
+#include <asm/elf.h>
 #include <asm/io.h>
 #include <asm/smp.h>
 #ifdef CONFIG_SUPERH32
@@ -151,6 +153,27 @@ static void __uses_jump_to_uncached cache_init(void)
 #define cache_init()	do { } while (0)
 #endif
 
+#define CSHAPE(totalsize, linesize, assoc) \
+	((totalsize & ~0xff) | (linesize << 4) | assoc)
+
+#define CACHE_DESC_SHAPE(desc)	\
+	CSHAPE((desc).way_size * (desc).ways, ilog2((desc).linesz), (desc).ways)
+
+static void detect_cache_shape(void)
+{
+	l1d_cache_shape = CACHE_DESC_SHAPE(current_cpu_data.dcache);
+
+	if (current_cpu_data.dcache.flags & SH_CACHE_COMBINED)
+		l1i_cache_shape = l1d_cache_shape;
+	else
+		l1i_cache_shape = CACHE_DESC_SHAPE(current_cpu_data.icache);
+
+	if (current_cpu_data.flags & CPU_HAS_L2_CACHE)
+		l2_cache_shape = CACHE_DESC_SHAPE(current_cpu_data.scache);
+	else
+		l2_cache_shape = -1; /* No S-cache */
+}
+
 #ifdef CONFIG_SH_DSP
 static void __init release_dsp(void)
 {
@@ -237,11 +260,15 @@ asmlinkage void __cpuinit sh_cpu_init(void)
 	/* Init the cache */
 	cache_init();
 
-	if (raw_smp_processor_id() == 0)
+	if (raw_smp_processor_id() == 0) {
 		shm_align_mask = max_t(unsigned long,
 				       current_cpu_data.dcache.way_size - 1,
 				       PAGE_SIZE - 1);
 
+		/* Boot CPU sets the cache shape */
+		detect_cache_shape();
+	}
+
 	/* Disable the FPU */
 	if (fpu_disabled) {
 		printk("FPU Disabled\n");
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index f48ce8e5d0a8..9c105c827e86 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -26,6 +26,7 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/page.h>
+#include <asm/elf.h>
 #include <asm/sections.h>
 #include <asm/irq.h>
 #include <asm/setup.h>
@@ -78,6 +79,8 @@ EXPORT_SYMBOL(memory_start);
 unsigned long memory_end = 0;
 EXPORT_SYMBOL(memory_end);
 
+int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
+
 static int __init early_parse_mem(char *p)
 {
 	unsigned long size;
diff --git a/include/asm-sh/auxvec.h b/include/asm-sh/auxvec.h
index 1b6916e63e90..4069858f8131 100644
--- a/include/asm-sh/auxvec.h
+++ b/include/asm-sh/auxvec.h
@@ -15,4 +15,16 @@
 #define AT_SYSINFO_EHDR		33
 #endif
 
+/*
+ * More complete cache descriptions than AT_[DIU]CACHEBSIZE.  If the
+ * value is -1, then the cache doesn't exist.  Otherwise:
+ *
+ *    bit 0-3:	  Cache set-associativity; 0 means fully associative.
+ *    bit 4-7:	  Log2 of cacheline size.
+ *    bit 8-31:	  Size of the entire cache >> 8.
+ */
+#define AT_L1I_CACHESHAPE	34
+#define AT_L1D_CACHESHAPE	35
+#define AT_L2_CACHESHAPE	36
+
 #endif /* __ASM_SH_AUXVEC_H */
diff --git a/include/asm-sh/elf.h b/include/asm-sh/elf.h
index 5a1e920f0598..61960408e6ef 100644
--- a/include/asm-sh/elf.h
+++ b/include/asm-sh/elf.h
@@ -161,12 +161,25 @@ extern void __kernel_vsyscall;
 #define VDSO_BASE		((unsigned long)current->mm->context.vdso)
 #define VDSO_SYM(x)		(VDSO_BASE + (unsigned long)(x))
 
+#define VSYSCALL_AUX_ENT					\
+	if (vdso_enabled)					\
+		NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE);
+#else
+#define VSYSCALL_AUX_ENT
+#endif /* CONFIG_VSYSCALL */
+
+extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
+
 /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
 #define ARCH_DLINFO						\
 do {								\
-	if (vdso_enabled)					\
-		NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE);	\
+	/* Optional vsyscall entry */				\
+	VSYSCALL_AUX_ENT					\
+								\
+	/* Cache desc */					\
+	NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape);	\
+	NEW_AUX_ENT(AT_L1D_CACHESHAPE, l1d_cache_shape);	\
+	NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape);		\
 } while (0)
-#endif /* CONFIG_VSYSCALL */
 
 #endif /* __ASM_SH_ELF_H */
diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h
index 9bda8d063ecf..84592555ba2a 100644
--- a/include/asm-sh/system.h
+++ b/include/asm-sh/system.h
@@ -12,7 +12,7 @@
 #include <asm/types.h>
 #include <asm/ptrace.h>
 
-#define AT_VECTOR_SIZE_ARCH 1 /* entries in ARCH_DLINFO */
+#define AT_VECTOR_SIZE_ARCH 4 /* entries in ARCH_DLINFO */
 
 #if defined(CONFIG_CPU_SH4A) || defined(CONFIG_CPU_SH5)
 #define __icbi()			\
-- 
cgit v1.2.3-59-g8ed1b


From d7ef4fb3acd1c1b141202c728ab3a78140a44eb7 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Tue, 11 Dec 2007 13:49:35 +0900
Subject: sh: Use def_bool where possible.

Change occurances of:
	bool
	default X

to:
	def_bool X

Change ocurances of:
	bool "Foo"
	default X

to:
	def_bool X
	prompt "Foo"

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig       | 45 +++++++++++++++++----------------------------
 arch/sh/Kconfig.cpu   | 20 ++++++++++----------
 arch/sh/Kconfig.debug | 15 +++++++--------
 3 files changed, 34 insertions(+), 46 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index f645f8416f1c..538631ca10a6 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -21,8 +21,7 @@ config SUPERH64
 	def_bool y if CPU_SH5
 
 config RWSEM_GENERIC_SPINLOCK
-	bool
-	default y
+	def_bool y
 
 config RWSEM_XCHGADD_ALGORITHM
 	bool
@@ -32,24 +31,19 @@ config GENERIC_BUG
 	depends on BUG && SUPERH32
 
 config GENERIC_FIND_NEXT_BIT
-	bool
-	default y
+	def_bool y
 
 config GENERIC_HWEIGHT
-	bool
-	default y
+	def_bool y
 
 config GENERIC_HARDIRQS
-	bool
-	default y
+	def_bool y
 
 config GENERIC_IRQ_PROBE
-	bool
-	default y
+	def_bool y
 
 config GENERIC_CALIBRATE_DELAY
-	bool
-	default y
+	def_bool y
 
 config GENERIC_IOMAP
 	bool
@@ -80,20 +74,16 @@ config ARCH_MAY_HAVE_PC_FDC
 	bool
 
 config STACKTRACE_SUPPORT
-	bool
-	default y
+	def_bool y
 
 config LOCKDEP_SUPPORT
-	bool
-	default y
+	def_bool y
 
 config ARCH_HAS_ILOG2_U32
-	bool
-	default n
+	def_bool n
 
 config ARCH_HAS_ILOG2_U64
-	bool
-	default n
+	def_bool n
 
 config ARCH_NO_VIRT_TO_BUS
 	def_bool y
@@ -530,25 +520,25 @@ source "arch/sh/boards/magicpanelr2/Kconfig"
 menu "Timer and clock configuration"
 
 config SH_TMU
-	bool "TMU timer support"
+	def_bool y
+	prompt "TMU timer support"
 	depends on CPU_SH3 || CPU_SH4
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
-	default y
 	help
 	  This enables the use of the TMU as the system timer.
 
 config SH_CMT
-	bool "CMT timer support"
+	def_bool y
+	prompt "CMT timer support"
 	depends on CPU_SH2
-	default y
 	help
 	  This enables the use of the CMT as the system timer.
 
 config SH_MTU2
-	bool "MTU2 timer support"
+	def_bool n
+	prompt "MTU2 timer support"
 	depends on CPU_SH2A
-	default n
 	help
 	  This enables the use of the MTU2 as the system timer.
 
@@ -612,9 +602,8 @@ source "arch/sh/drivers/Kconfig"
 endmenu
 
 config ISA_DMA_API
-	bool
+	def_bool y
 	depends on SH_MPC1211
-	default y
 
 menu "Kernel features"
 
diff --git a/arch/sh/Kconfig.cpu b/arch/sh/Kconfig.cpu
index ef398535caf8..d850184d0694 100644
--- a/arch/sh/Kconfig.cpu
+++ b/arch/sh/Kconfig.cpu
@@ -16,9 +16,9 @@ config CPU_BIG_ENDIAN
 endchoice
 
 config SH_FPU
-	bool "FPU support"
+	def_bool y
+	prompt "FPU support"
 	depends on CPU_HAS_FPU
-	default y
 	help
 	  Selecting this option will enable support for SH processors that
 	  have FPU units (ie, SH77xx).
@@ -30,18 +30,18 @@ config SH64_FPU_DENORM_FLUSH
 	depends on SH_FPU && SUPERH64
 
 config SH_FPU_EMU
-	bool "FPU emulation support"
+	def_bool n
+	prompt "FPU emulation support"
 	depends on !SH_FPU && EXPERIMENTAL
-	default n
 	help
 	  Selecting this option will enable support for software FPU emulation.
 	  Most SH-3 users will want to say Y here, whereas most SH-4 users will
 	  want to say N.
 
 config SH_DSP
-	bool "DSP support"
+	def_bool y
+	prompt "DSP support"
 	depends on CPU_HAS_DSP
-	default y
 	help
 	  Selecting this option will enable support for SH processors that
 	  have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
@@ -49,9 +49,9 @@ config SH_DSP
 	  This option must be set in order to enable the DSP.
 
 config SH_ADC
-	bool "ADC support"
+	def_bool y
+	prompt "ADC support"
 	depends on CPU_SH3
-	default y
 	help
 	  Selecting this option will allow the Linux kernel to use SH3 on-chip
 	  ADC module.
@@ -76,9 +76,9 @@ config SPECULATIVE_EXECUTION
 	  If unsure, say N.
 
 config SH64_USER_MISALIGNED_FIXUP
-	bool "Fixup misaligned loads/stores occurring in user mode"
+	def_bool y
+	prompt "Fixup misaligned loads/stores occurring in user mode"
 	depends on SUPERH64
-	default y
 
 config SH64_ID2815_WORKAROUND
 	bool "Include workaround for SH5-101 cut2 silicon defect ID2815"
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index b0dcb240d798..2881d8471a17 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -1,8 +1,7 @@
 menu "Kernel hacking"
 
 config TRACE_IRQFLAGS_SUPPORT
-	bool
-	default y
+	def_bool y
 
 source "lib/Kconfig.debug"
 
@@ -120,19 +119,19 @@ config COMPILE_OPTIONS
 	depends on MORE_COMPILE_OPTIONS
 
 config KGDB_NMI
-	bool "Enter KGDB on NMI"
-	default n
+	def_bool n
+	prompt "Enter KGDB on NMI"
 
 config SH_KGDB_CONSOLE
-	bool "Console messages through GDB"
+	def_bool n
+	prompt "Console messages through GDB"
 	depends on !SERIAL_SH_SCI_CONSOLE && SERIAL_SH_SCI=y
 	select SERIAL_CORE_CONSOLE
-	default n
 
 config KGDB_SYSRQ
-	bool "Allow SysRq 'G' to enter KGDB"
+	def_bool y
+	prompt "Allow SysRq 'G' to enter KGDB"
 	depends on MAGIC_SYSRQ
-	default y
 
 comment "Serial port setup"
 
-- 
cgit v1.2.3-59-g8ed1b


From 9acb98fb7ce948063a2269b4f8db83d6bef7e2b0 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 17 Dec 2007 10:52:11 +0900
Subject: sh: Stub in page_table_range_init() on nommu.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/tlb-nommu.c   | 6 ++++++
 include/asm-sh/pgtable.h | 2 ++
 2 files changed, 8 insertions(+)

(limited to 'arch')

diff --git a/arch/sh/mm/tlb-nommu.c b/arch/sh/mm/tlb-nommu.c
index 1ccca7c0532e..8842620604c3 100644
--- a/arch/sh/mm/tlb-nommu.c
+++ b/arch/sh/mm/tlb-nommu.c
@@ -9,6 +9,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/mm.h>
+#include <asm/pgtable.h>
 
 /*
  * Nothing too terribly exciting here ..
@@ -49,3 +50,8 @@ void update_mmu_cache(struct vm_area_struct * vma,
 {
 	BUG();
 }
+
+void __init page_table_range_init(unsigned long start, unsigned long end,
+				  pgd_t *pgd_base)
+{
+}
diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h
index 3df90f003e95..a4a8f8b93463 100644
--- a/include/asm-sh/pgtable.h
+++ b/include/asm-sh/pgtable.h
@@ -144,6 +144,8 @@ extern void update_mmu_cache(struct vm_area_struct * vma,
 			     unsigned long address, pte_t pte);
 extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
 extern void paging_init(void);
+extern void page_table_range_init(unsigned long start, unsigned long end,
+				  pgd_t *pgd);
 
 #include <asm-generic/pgtable.h>
 
-- 
cgit v1.2.3-59-g8ed1b


From 6fc5153aab2a6eb23e636d962e1aceaabd0dfb12 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 17 Dec 2007 16:08:49 +0900
Subject: sh: Fix up KERNEL_ENTRY calculation for uImage.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boot/Makefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/boot/Makefile b/arch/sh/boot/Makefile
index 4b3a6f19c3b5..59f552c13349 100644
--- a/arch/sh/boot/Makefile
+++ b/arch/sh/boot/Makefile
@@ -38,8 +38,9 @@ KERNEL_LOAD	:= $(shell /bin/bash -c 'printf "0x%8x" \
 			$(CONFIG_ZERO_PAGE_OFFSET)]')
 
 KERNEL_ENTRY	:= $(shell /bin/bash -c 'printf "0x%8x" \
-		     $$[$(KERNEL_LOAD)+0x1000]')
-
+		     $$[$(CONFIG_PAGE_OFFSET)  + \
+			$(CONFIG_MEMORY_START) + \
+			$(CONFIG_ZERO_PAGE_OFFSET)+0x1000]')
 
 quiet_cmd_uimage = UIMAGE  $@
       cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A sh -O linux -T kernel \
-- 
cgit v1.2.3-59-g8ed1b


From eb9c7f4198636fb74ea1ec60c0fff2d1a840b4ed Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 18 Dec 2007 09:40:03 +0900
Subject: sh: arch/sh/: Spelling fixes.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/dreamcast/irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/boards/dreamcast/irq.c b/arch/sh/boards/dreamcast/irq.c
index 5bf01f86c20c..9d0673a9092a 100644
--- a/arch/sh/boards/dreamcast/irq.c
+++ b/arch/sh/boards/dreamcast/irq.c
@@ -136,7 +136,7 @@ int systemasic_irq_demux(int irq)
         emr = EMR_BASE + (level << 4) + (level << 2);
         esr = ESR_BASE + (level << 2);
 
-        /* Mask the ESR to filter any spurious, unwanted interrtupts */
+        /* Mask the ESR to filter any spurious, unwanted interrupts */
         status = inl(esr);
         status &= inl(emr);
 
-- 
cgit v1.2.3-59-g8ed1b


From 52e8b118ecd17185ce514cd3f955094c1d8f4288 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 18 Dec 2007 09:43:35 +0900
Subject: sh: Provide a stubbed __set_fixmap() for nommu.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/tlb-nommu.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'arch')

diff --git a/arch/sh/mm/tlb-nommu.c b/arch/sh/mm/tlb-nommu.c
index 8842620604c3..15111bc7ddd6 100644
--- a/arch/sh/mm/tlb-nommu.c
+++ b/arch/sh/mm/tlb-nommu.c
@@ -55,3 +55,7 @@ void __init page_table_range_init(unsigned long start, unsigned long end,
 				  pgd_t *pgd_base)
 {
 }
+
+void __set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t prot)
+{
+}
-- 
cgit v1.2.3-59-g8ed1b


From 31a49c4bf8f964b7a9897baa889916d71b51d9c1 Mon Sep 17 00:00:00 2001
From: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Date: Wed, 26 Dec 2007 11:45:06 +0900
Subject: sh: Add support for SH7721 CPU subtype.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig                       |  7 +++++++
 arch/sh/Kconfig.debug                 |  2 +-
 arch/sh/drivers/dma/Kconfig           |  2 +-
 arch/sh/drivers/dma/dma-sh.c          |  2 ++
 arch/sh/kernel/cpu/sh3/Makefile       |  1 +
 arch/sh/kernel/cpu/sh3/probe.c        |  3 +++
 arch/sh/kernel/cpu/sh3/setup-sh7720.c | 11 +++++++++--
 arch/sh/kernel/early_printk.c         | 12 ++++++++----
 arch/sh/kernel/setup.c                |  8 ++++----
 arch/sh/kernel/timers/timer-tmu.c     |  1 +
 drivers/serial/sh-sci.c               |  2 +-
 drivers/serial/sh-sci.h               | 21 ++++++++++++++-------
 include/asm-sh/cpu-sh3/cache.h        |  3 ++-
 include/asm-sh/cpu-sh3/dma.h          |  4 +++-
 include/asm-sh/cpu-sh3/gpio.h         |  3 ++-
 include/asm-sh/cpu-sh3/mmu_context.h  |  3 ++-
 include/asm-sh/cpu-sh3/timer.h        |  7 ++++---
 include/asm-sh/cpu-sh3/ubc.h          |  3 ++-
 include/asm-sh/processor.h            |  2 +-
 19 files changed, 68 insertions(+), 29 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 538631ca10a6..d2f557719489 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -214,6 +214,13 @@ config CPU_SUBTYPE_SH7720
 	help
 	  Select SH7720 if you have a SH3-DSP SH7720 CPU.
 
+config CPU_SUBTYPE_SH7721
+	bool "Support SH7721 processor"
+	select CPU_SH3
+	select CPU_HAS_DSP
+	help
+	  Select SH7721 if you have a SH3-DSP SH7721 CPU.
+
 # SH-4 Processor Support
 
 config CPU_SUBTYPE_SH7750
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 2881d8471a17..dde00d5c2478 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -35,7 +35,7 @@ config EARLY_SCIF_CONSOLE_PORT
 	default "0xfffe9800" if CPU_SUBTYPE_SH7206 || CPU_SUBTYPE_SH7263
 	default "0xf8420000" if CPU_SUBTYPE_SH7619
 	default "0xa4400000" if CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7705
-	default "0xa4430000" if CPU_SUBTYPE_SH7720
+	default "0xa4430000" if CPU_SUBTYPE_SH7720 || CPU_SUBTYPE_SH7721
 	default "0xffc30000" if CPU_SUBTYPE_SHX3
 	default "0xffe80000" if CPU_SH4
 	default "0x00000000"
diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig
index 4e711a0c3dae..01936368b8b0 100644
--- a/arch/sh/drivers/dma/Kconfig
+++ b/arch/sh/drivers/dma/Kconfig
@@ -12,7 +12,7 @@ config SH_DMA
 config NR_ONCHIP_DMA_CHANNELS
 	int
 	depends on SH_DMA
-	default "6" if CPU_SUBTYPE_SH7720
+	default "6" if CPU_SUBTYPE_SH7720 || CPU_SUBTYPE_SH7721
 	default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R
 	default "12" if CPU_SUBTYPE_SH7780
 	default "4"
diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c
index 958bac1c585a..5c3359756a92 100644
--- a/arch/sh/drivers/dma/dma-sh.c
+++ b/arch/sh/drivers/dma/dma-sh.c
@@ -25,6 +25,7 @@ static int dmte_irq_map[] = {
 	DMTE2_IRQ,
 	DMTE3_IRQ,
 #if defined(CONFIG_CPU_SUBTYPE_SH7720)  ||	\
+    defined(CONFIG_CPU_SUBTYPE_SH7721)  ||	\
     defined(CONFIG_CPU_SUBTYPE_SH7751R) ||	\
     defined(CONFIG_CPU_SUBTYPE_SH7760)  ||	\
     defined(CONFIG_CPU_SUBTYPE_SH7709)  ||	\
@@ -203,6 +204,7 @@ static int sh_dmac_get_dma_residue(struct dma_channel *chan)
 }
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721) || \
     defined(CONFIG_CPU_SUBTYPE_SH7780)
 #define dmaor_read_reg()	ctrl_inw(DMAOR)
 #define dmaor_write_reg(data)	ctrl_outw(data, DMAOR)
diff --git a/arch/sh/kernel/cpu/sh3/Makefile b/arch/sh/kernel/cpu/sh3/Makefile
index 646eb6933614..1afd05e62d1c 100644
--- a/arch/sh/kernel/cpu/sh3/Makefile
+++ b/arch/sh/kernel/cpu/sh3/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7709)	+= setup-sh770x.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7710)	+= setup-sh7710.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7712)	+= setup-sh7710.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7720)	+= setup-sh7720.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7721)	+= setup-sh7720.o
 
 # Primary on-chip clocks (common)
 clock-$(CONFIG_CPU_SH3)			:= clock-sh3.o
diff --git a/arch/sh/kernel/cpu/sh3/probe.c b/arch/sh/kernel/cpu/sh3/probe.c
index 22070e43e34d..fcc80bb7bee7 100644
--- a/arch/sh/kernel/cpu/sh3/probe.c
+++ b/arch/sh/kernel/cpu/sh3/probe.c
@@ -84,6 +84,9 @@ int __uses_jump_to_uncached detect_cpu_and_cache_system(void)
 #if defined(CONFIG_CPU_SUBTYPE_SH7720)
 		boot_cpu_data.type = CPU_SH7720;
 #endif
+#if defined(CONFIG_CPU_SUBTYPE_SH7721)
+		boot_cpu_data.type = CPU_SH7721;
+#endif
 #if defined(CONFIG_CPU_SUBTYPE_SH7705)
 		boot_cpu_data.type = CPU_SH7705;
 
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7720.c b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
index a0929b8a95ae..00facd028a08 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7720.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
@@ -127,8 +127,11 @@ static struct intc_vect vectors[] __initdata = {
 	INTC_VECT(USBF_SPD, 0x6e0),   INTC_VECT(DMAC1_DEI0, 0x800),
 	INTC_VECT(DMAC1_DEI1, 0x820), INTC_VECT(DMAC1_DEI2, 0x840),
 	INTC_VECT(DMAC1_DEI3, 0x860), INTC_VECT(LCDC, 0x900),
-	INTC_VECT(SSL, 0x980),        INTC_VECT(USBFI0, 0xa20),
-	INTC_VECT(USBFI1, 0xa40),     INTC_VECT(USBHI, 0xa60),
+#if defined(CONFIG_CPU_SUBTYPE_SH7720)
+	INTC_VECT(SSL, 0x980),
+#endif
+	INTC_VECT(USBFI0, 0xa20),     INTC_VECT(USBFI1, 0xa40),
+	INTC_VECT(USBHI, 0xa60),
 	INTC_VECT(DMAC2_DEI4, 0xb80), INTC_VECT(DMAC2_DEI5, 0xba0),
 	INTC_VECT(ADC, 0xbe0),        INTC_VECT(SCIF0, 0xc00),
 	INTC_VECT(SCIF1, 0xc20),      INTC_VECT(PINT07, 0xc80),
@@ -168,7 +171,11 @@ static struct intc_prio_reg prio_registers[] __initdata = {
 	{ 0xA414FEE4UL, 0, 16, 4, /* IPRB */ { WDT, REF_RCMI, SIM, 0 } },
 	{ 0xA4140016UL, 0, 16, 4, /* IPRC */ { IRQ3, IRQ2, IRQ1, IRQ0 } },
 	{ 0xA4140018UL, 0, 16, 4, /* IPRD */ { USBF_SPD, TMU_SUNI, IRQ5, IRQ4 } },
+#if defined(CONFIG_CPU_SUBTYPE_SH7720)
 	{ 0xA414001AUL, 0, 16, 4, /* IPRE */ { DMAC1, 0, LCDC, SSL } },
+#else
+	{ 0xA414001AUL, 0, 16, 4, /* IPRE */ { DMAC1, 0, LCDC, 0 } },
+#endif
 	{ 0xA4080000UL, 0, 16, 4, /* IPRF */ { ADC, DMAC2, USBFI, CMT } },
 	{ 0xA4080002UL, 0, 16, 4, /* IPRG */ { SCIF0, SCIF1, 0, 0 } },
 	{ 0xA4080004UL, 0, 16, 4, /* IPRH */ { PINT07, PINT815, TPU, IIC } },
diff --git a/arch/sh/kernel/early_printk.c b/arch/sh/kernel/early_printk.c
index 2f30977558ad..957f25611543 100644
--- a/arch/sh/kernel/early_printk.c
+++ b/arch/sh/kernel/early_printk.c
@@ -63,7 +63,8 @@ static struct console bios_console = {
 #include <linux/serial_core.h>
 #include "../../../drivers/serial/sh-sci.h"
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7720)
+#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
 #define EPK_SCSMR_VALUE 0x000
 #define EPK_SCBRR_VALUE 0x00C
 #define EPK_FIFO_SIZE 64
@@ -117,7 +118,8 @@ static struct console scif_console = {
 };
 
 #if !defined(CONFIG_SH_STANDARD_BIOS)
-#if defined(CONFIG_CPU_SUBTYPE_SH7720)
+#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
 static void scif_sercon_init(char *s)
 {
 	sci_out(&scif_port, SCSCR, 0x0000);	/* clear TE and RE */
@@ -208,9 +210,11 @@ static int __init setup_early_printk(char *buf)
 	if (!strncmp(buf, "serial", 6)) {
 		early_console = &scif_console;
 
-#if (defined(CONFIG_CPU_SH4) || defined(CONFIG_CPU_SUBTYPE_SH7720)) && \
-    !defined(CONFIG_SH_STANDARD_BIOS)
+#if !defined(CONFIG_SH_STANDARD_BIOS)
+#if defined(CONFIG_CPU_SH4) || defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
 		scif_sercon_init(buf + 6);
+#endif
 #endif
 	}
 #endif
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 9c105c827e86..48cd576754b5 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -314,10 +314,10 @@ static const char *cpu_name[] = {
 	[CPU_SH7707]	= "SH7707",	[CPU_SH7708]	= "SH7708",
 	[CPU_SH7709]	= "SH7709",	[CPU_SH7710]	= "SH7710",
 	[CPU_SH7712]	= "SH7712",	[CPU_SH7720]	= "SH7720",
-	[CPU_SH7729]	= "SH7729",	[CPU_SH7750]	= "SH7750",
-	[CPU_SH7750S]	= "SH7750S",	[CPU_SH7750R]	= "SH7750R",
-	[CPU_SH7751]	= "SH7751",	[CPU_SH7751R]	= "SH7751R",
-	[CPU_SH7760]	= "SH7760",
+	[CPU_SH7721]	= "SH7721",	[CPU_SH7729]	= "SH7729",
+	[CPU_SH7750]	= "SH7750",	[CPU_SH7750S]	= "SH7750S",
+	[CPU_SH7750R]	= "SH7750R",	[CPU_SH7751]	= "SH7751",
+	[CPU_SH7751R]	= "SH7751R",	[CPU_SH7760]	= "SH7760",
 	[CPU_SH4_202]	= "SH4-202",	[CPU_SH4_501]	= "SH4-501",
 	[CPU_SH7770]	= "SH7770",	[CPU_SH7780]	= "SH7780",
 	[CPU_SH7781]	= "SH7781",	[CPU_SH7343]	= "SH7343",
diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c
index 628ec9a15e38..8935570008d2 100644
--- a/arch/sh/kernel/timers/timer-tmu.c
+++ b/arch/sh/kernel/timers/timer-tmu.c
@@ -174,6 +174,7 @@ static int tmu_timer_init(void)
 	tmu_timer_stop();
 
 #if !defined(CONFIG_CPU_SUBTYPE_SH7720) && \
+    !defined(CONFIG_CPU_SUBTYPE_SH7721) && \
     !defined(CONFIG_CPU_SUBTYPE_SH7760) && \
     !defined(CONFIG_CPU_SUBTYPE_SH7785) && \
     !defined(CONFIG_CPU_SUBTYPE_SHX3)
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 73440e26834b..6fbfd140b7e7 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -302,7 +302,7 @@ static void sci_init_pins_scif(struct uart_port* port, unsigned int cflag)
 	}
 	sci_out(port, SCFCR, fcr_val);
 }
-#elif defined(CONFIG_CPU_SUBTYPE_SH7720)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7720) || defined(CONFIG_CPU_SUBTYPE_SH7721)
 static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
 {
 	unsigned int fcr_val = 0;
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 0187dccfe8c1..85562040a6d3 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -46,7 +46,8 @@
  */
 # define SCSCR_INIT(port) (port->mapbase == SCIF2) ? 0xF3 : 0xF0
 # define SCIF_ONLY
-#elif defined(CONFIG_CPU_SUBTYPE_SH7720)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7721)
 # define SCSCR_INIT(port)  0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */
 # define SCIF_ONLY
 #define SCIF_ORER    0x0200   /* overrun error bit */
@@ -216,7 +217,8 @@
 #define SCIF_DR    0x0001 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7720)
+    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
 #define SCIF_ORER    0x0200
 #define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER)
 #define SCIF_RFDC_MASK 0x007f
@@ -254,7 +256,8 @@
 # define SCxSR_PER(port)		SCIF_PER
 # define SCxSR_BRK(port)		SCIF_BRK
 #if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7720)
+    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
 # define SCxSR_RDxF_CLEAR(port)         (sci_in(port,SCxSR)&0xfffc)
 # define SCxSR_ERROR_CLEAR(port)        (sci_in(port,SCxSR)&0xfd73)
 # define SCxSR_TDxE_CLEAR(port)         (sci_in(port,SCxSR)&0xffdf)
@@ -363,7 +366,8 @@
 #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
 	  CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
 #elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7720)
+      defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7721)
 #define SCIF_FNS(name, scif_offset, scif_size) \
   CPU_SCIF_FNS(name, scif_offset, scif_size)
 #else
@@ -390,7 +394,8 @@
 #endif
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7720)
+    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
 
 SCIF_FNS(SCSMR,  0x00, 16)
 SCIF_FNS(SCBRR,  0x04,  8)
@@ -512,7 +517,8 @@ static inline void set_sh771x_scif_pfc(struct uart_port *port)
 		return;
 	}
 }
-#elif defined(CONFIG_CPU_SUBTYPE_SH7720)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7721)
 static inline int sci_rxd_in(struct uart_port *port)
 {
 	if (port->mapbase == 0xa4430000)
@@ -696,7 +702,8 @@ static inline int sci_rxd_in(struct uart_port *port)
     defined(CONFIG_CPU_SUBTYPE_SH7785)
 #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1)
 #elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7720)
+      defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7721)
 #define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)
 #elif defined(__H8300H__) || defined(__H8300S__)
 #define SCBRR_VALUE(bps) (((CONFIG_CPU_CLOCK*1000/32)/bps)-1)
diff --git a/include/asm-sh/cpu-sh3/cache.h b/include/asm-sh/cpu-sh3/cache.h
index 77dd45d82414..56bd838b7db4 100644
--- a/include/asm-sh/cpu-sh3/cache.h
+++ b/include/asm-sh/cpu-sh3/cache.h
@@ -33,7 +33,8 @@
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
     defined(CONFIG_CPU_SUBTYPE_SH7710) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7720)
+    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
 #define CCR3	0xa40000b4
 #define CCR_CACHE_16KB  0x00010000
 #define CCR_CACHE_32KB	0x00020000
diff --git a/include/asm-sh/cpu-sh3/dma.h b/include/asm-sh/cpu-sh3/dma.h
index 54bfece328c2..092ff9d872c3 100644
--- a/include/asm-sh/cpu-sh3/dma.h
+++ b/include/asm-sh/cpu-sh3/dma.h
@@ -2,7 +2,9 @@
 #define __ASM_CPU_SH3_DMA_H
 
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7720) || defined(CONFIG_CPU_SUBTYPE_SH7709)
+#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7709)
 #define SH_DMAC_BASE	0xa4010020
 
 #define DMTE0_IRQ	48
diff --git a/include/asm-sh/cpu-sh3/gpio.h b/include/asm-sh/cpu-sh3/gpio.h
index 48770c1c7bdf..4e53eb314b8f 100644
--- a/include/asm-sh/cpu-sh3/gpio.h
+++ b/include/asm-sh/cpu-sh3/gpio.h
@@ -12,7 +12,8 @@
 #ifndef _CPU_SH3_GPIO_H
 #define _CPU_SH3_GPIO_H
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7720)
+#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
 
 /* Control registers */
 #define PORT_PACR	0xA4050100UL
diff --git a/include/asm-sh/cpu-sh3/mmu_context.h b/include/asm-sh/cpu-sh3/mmu_context.h
index 16c2d63b7e39..ab09da73ce77 100644
--- a/include/asm-sh/cpu-sh3/mmu_context.h
+++ b/include/asm-sh/cpu-sh3/mmu_context.h
@@ -33,7 +33,8 @@
     defined(CONFIG_CPU_SUBTYPE_SH7709) || \
     defined(CONFIG_CPU_SUBTYPE_SH7710) || \
     defined(CONFIG_CPU_SUBTYPE_SH7712) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7720)
+    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
 #define INTEVT	0xa4000000	/* INTEVTE2(0xa4000000) */
 #else
 #define INTEVT	0xffffffd8
diff --git a/include/asm-sh/cpu-sh3/timer.h b/include/asm-sh/cpu-sh3/timer.h
index 7b795ac5477c..793acf12aa08 100644
--- a/include/asm-sh/cpu-sh3/timer.h
+++ b/include/asm-sh/cpu-sh3/timer.h
@@ -23,12 +23,13 @@
  * ---------------------------------------------------------------------------
  */
 
-#if  !defined(CONFIG_CPU_SUBTYPE_SH7720)
+#if  !defined(CONFIG_CPU_SUBTYPE_SH7720) && !defined(CONFIG_CPU_SUBTYPE_SH7721)
 #define TMU_TOCR	0xfffffe90	/* Byte access */
 #endif
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7710) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7720)
+    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
 #define TMU_012_TSTR	0xa412fe92	/* Byte access */
 
 #define TMU0_TCOR	0xa412fe94	/* Long access */
@@ -57,7 +58,7 @@
 #define TMU2_TCOR	0xfffffeac	/* Long access */
 #define TMU2_TCNT	0xfffffeb0	/* Long access */
 #define TMU2_TCR	0xfffffeb4	/* Word access */
-#if !defined(CONFIG_CPU_SUBTYPE_SH7720)
+#if !defined(CONFIG_CPU_SUBTYPE_SH7720) && !defined(CONFIG_CPU_SUBTYPE_SH7721)
 #define TMU2_TCPR2	0xfffffeb8	/* Long access */
 #endif
 #endif
diff --git a/include/asm-sh/cpu-sh3/ubc.h b/include/asm-sh/cpu-sh3/ubc.h
index 18467c574534..4e6381d5ff7a 100644
--- a/include/asm-sh/cpu-sh3/ubc.h
+++ b/include/asm-sh/cpu-sh3/ubc.h
@@ -12,7 +12,8 @@
 #define __ASM_CPU_SH3_UBC_H
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7710) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7720)
+    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
 #define UBC_BARA		0xa4ffffb0
 #define UBC_BAMRA		0xa4ffffb4
 #define UBC_BBRA		0xa4ffffb8
diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h
index bbbdaab8de5f..f4a8da71ba45 100644
--- a/include/asm-sh/processor.h
+++ b/include/asm-sh/processor.h
@@ -23,7 +23,7 @@ enum cpu_type {
 	CPU_SH7705, CPU_SH7706, CPU_SH7707,
 	CPU_SH7708, CPU_SH7708S, CPU_SH7708R,
 	CPU_SH7709, CPU_SH7709A, CPU_SH7710, CPU_SH7712,
-	CPU_SH7720, CPU_SH7729,
+	CPU_SH7720, CPU_SH7721, CPU_SH7729,
 
 	/* SH-4 types */
 	CPU_SH7750, CPU_SH7750S, CPU_SH7750R, CPU_SH7751, CPU_SH7751R,
-- 
cgit v1.2.3-59-g8ed1b


From 7d740a066fb9c6681c2898c7977209725c9e552f Mon Sep 17 00:00:00 2001
From: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Date: Mon, 7 Jan 2008 14:40:07 +0900
Subject: sh: Add support for SH7763 CPU subtype.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig                        |   9 +-
 arch/sh/Kconfig.debug                  |   2 +-
 arch/sh/drivers/pci/Makefile           |   1 +
 arch/sh/drivers/pci/pci-sh4.h          |   4 +-
 arch/sh/drivers/pci/pci-sh7780.c       |   1 +
 arch/sh/drivers/pci/pci-sh7780.h       |   1 +
 arch/sh/kernel/cpu/sh4/probe.c         |   2 +
 arch/sh/kernel/cpu/sh4a/Makefile       |   2 +
 arch/sh/kernel/cpu/sh4a/clock-sh7763.c | 126 +++++++++++
 arch/sh/kernel/cpu/sh4a/setup-sh7763.c | 390 +++++++++++++++++++++++++++++++++
 arch/sh/kernel/setup.c                 |   8 +-
 drivers/serial/sh-sci.c                |   4 +-
 drivers/serial/sh-sci.h                |  19 +-
 include/asm-sh/bugs.h                  |   2 +-
 include/asm-sh/cpu-sh4/freq.h          |   3 +-
 include/asm-sh/processor.h             |   2 +-
 16 files changed, 564 insertions(+), 12 deletions(-)
 create mode 100644 arch/sh/kernel/cpu/sh4a/clock-sh7763.c
 create mode 100644 arch/sh/kernel/cpu/sh4a/setup-sh7763.c

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index d2f557719489..ddbd610d27e7 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -265,6 +265,12 @@ config CPU_SUBTYPE_SH4_202
 
 # SH-4A Processor Support
 
+config CPU_SUBTYPE_SH7763
+	bool "Support SH7763 processor"
+	select CPU_SH4A
+	help
+	  Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
+
 config CPU_SUBTYPE_SH7770
 	bool "Support SH7770 processor"
 	select CPU_SH4A
@@ -551,7 +557,8 @@ config SH_MTU2
 
 config SH_TIMER_IRQ
 	int
-	default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
+	default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
+			CPU_SUBTYPE_SH7763
 	default "86" if CPU_SUBTYPE_SH7619
 	default "140" if CPU_SUBTYPE_SH7206
 	default "16"
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index dde00d5c2478..f7c716166ce8 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -29,7 +29,7 @@ config EARLY_SCIF_CONSOLE
 config EARLY_SCIF_CONSOLE_PORT
 	hex
 	depends on EARLY_SCIF_CONSOLE
-	default "0xffe00000" if CPU_SUBTYPE_SH7780
+ 	default "0xffe00000" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7763
 	default "0xffea0000" if CPU_SUBTYPE_SH7785
 	default "0xfffe8000" if CPU_SUBTYPE_SH7203
 	default "0xfffe9800" if CPU_SUBTYPE_SH7206 || CPU_SUBTYPE_SH7263
diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile
index 172e81db9530..1086cf111f8b 100644
--- a/arch/sh/drivers/pci/Makefile
+++ b/arch/sh/drivers/pci/Makefile
@@ -7,6 +7,7 @@ obj-$(CONFIG_PCI_AUTO)			+= pci-auto.o
 
 obj-$(CONFIG_CPU_SUBTYPE_SH7751)	+= pci-sh7751.o ops-sh4.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7751R)	+= pci-sh7751.o ops-sh4.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7763)	+= pci-sh7780.o ops-sh4.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7780)	+= pci-sh7780.o ops-sh4.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7785)	+= pci-sh7780.o ops-sh4.o
 obj-$(CONFIG_CPU_SH5)			+= pci-sh5.o ops-sh5.o
diff --git a/arch/sh/drivers/pci/pci-sh4.h b/arch/sh/drivers/pci/pci-sh4.h
index 1901c33cde6a..4925c79ea959 100644
--- a/arch/sh/drivers/pci/pci-sh4.h
+++ b/arch/sh/drivers/pci/pci-sh4.h
@@ -1,7 +1,9 @@
 #ifndef __PCI_SH4_H
 #define __PCI_SH4_H
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785)
+#if defined(CONFIG_CPU_SUBTYPE_SH7780) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7785) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7763)
 #include "pci-sh7780.h"
 #else
 #include "pci-sh7751.h"
diff --git a/arch/sh/drivers/pci/pci-sh7780.c b/arch/sh/drivers/pci/pci-sh7780.c
index e516087fb435..7d797f4de5e7 100644
--- a/arch/sh/drivers/pci/pci-sh7780.c
+++ b/arch/sh/drivers/pci/pci-sh7780.c
@@ -58,6 +58,7 @@ static int __init sh7780_pci_init(void)
 	id = pci_read_reg(SH7780_PCIVID);
 	if ((id & 0xffff) == SH7780_VENDOR_ID) {
 		switch ((id >> 16) & 0xffff) {
+		case SH7763_DEVICE_ID:
 		case SH7780_DEVICE_ID:
 		case SH7781_DEVICE_ID:
 		case SH7785_DEVICE_ID:
diff --git a/arch/sh/drivers/pci/pci-sh7780.h b/arch/sh/drivers/pci/pci-sh7780.h
index 1d069a859de2..97b2c98f05c4 100644
--- a/arch/sh/drivers/pci/pci-sh7780.h
+++ b/arch/sh/drivers/pci/pci-sh7780.h
@@ -16,6 +16,7 @@
 #define SH7780_VENDOR_ID	0x1912
 #define SH7781_DEVICE_ID	0x0001
 #define SH7780_DEVICE_ID	0x0002
+#define SH7763_DEVICE_ID	0x0004
 #define SH7785_DEVICE_ID	0x0007
 
 /* SH7780 Control Registers */
diff --git a/arch/sh/kernel/cpu/sh4/probe.c b/arch/sh/kernel/cpu/sh4/probe.c
index bc9c28a69bf1..f2b9238cda04 100644
--- a/arch/sh/kernel/cpu/sh4/probe.c
+++ b/arch/sh/kernel/cpu/sh4/probe.c
@@ -98,6 +98,8 @@ int __init detect_cpu_and_cache_system(void)
 	case 0x200A:
 		if (prr == 0x61)
 			boot_cpu_data.type = CPU_SH7781;
+		else if (prr == 0xa1)
+			boot_cpu_data.type = CPU_SH7763;
 		else
 			boot_cpu_data.type = CPU_SH7780;
 
diff --git a/arch/sh/kernel/cpu/sh4a/Makefile b/arch/sh/kernel/cpu/sh4a/Makefile
index 24539873943a..08ac6387bf17 100644
--- a/arch/sh/kernel/cpu/sh4a/Makefile
+++ b/arch/sh/kernel/cpu/sh4a/Makefile
@@ -3,6 +3,7 @@
 #
 
 # CPU subtype setup
+obj-$(CONFIG_CPU_SUBTYPE_SH7763)	+= setup-sh7763.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7770)	+= setup-sh7770.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7780)	+= setup-sh7780.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7785)	+= setup-sh7785.o
@@ -14,6 +15,7 @@ obj-$(CONFIG_CPU_SUBTYPE_SHX3)		+= setup-shx3.o
 smp-$(CONFIG_CPU_SUBTYPE_SHX3)		:= smp-shx3.o
 
 # Primary on-chip clocks (common)
+clock-$(CONFIG_CPU_SUBTYPE_SH7763)	:= clock-sh7763.o
 clock-$(CONFIG_CPU_SUBTYPE_SH7770)	:= clock-sh7770.o
 clock-$(CONFIG_CPU_SUBTYPE_SH7780)	:= clock-sh7780.o
 clock-$(CONFIG_CPU_SUBTYPE_SH7785)	:= clock-sh7785.o
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7763.c b/arch/sh/kernel/cpu/sh4a/clock-sh7763.c
new file mode 100644
index 000000000000..45889d412c80
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7763.c
@@ -0,0 +1,126 @@
+/*
+ * arch/sh/kernel/cpu/sh4a/clock-sh7763.c
+ *
+ * SH7763 support for the clock framework
+ *
+ *  Copyright (C) 2005  Paul Mundt
+ *  Copyright (C) 2007  Yoshihiro Shimoda
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <asm/clock.h>
+#include <asm/freq.h>
+#include <asm/io.h>
+
+static int bfc_divisors[] = { 1, 1, 1, 8, 1, 1, 1, 1 };
+static int p0fc_divisors[] = { 1, 1, 1, 8, 1, 1, 1, 1 };
+static int p1fc_divisors[] = { 1, 1, 1, 16, 1, 1, 1, 1 };
+static int cfc_divisors[] = { 1, 1, 4, 1, 1, 1, 1, 1 };
+
+static void master_clk_init(struct clk *clk)
+{
+	clk->rate *= p0fc_divisors[(ctrl_inl(FRQCR) >> 4) & 0x07];
+}
+
+static struct clk_ops sh7763_master_clk_ops = {
+	.init		= master_clk_init,
+};
+
+static void module_clk_recalc(struct clk *clk)
+{
+	int idx = ((ctrl_inl(FRQCR) >> 4) & 0x07);
+	clk->rate = clk->parent->rate / p0fc_divisors[idx];
+}
+
+static struct clk_ops sh7763_module_clk_ops = {
+	.recalc		= module_clk_recalc,
+};
+
+static void bus_clk_recalc(struct clk *clk)
+{
+	int idx = ((ctrl_inl(FRQCR) >> 16) & 0x07);
+	clk->rate = clk->parent->rate / bfc_divisors[idx];
+}
+
+static struct clk_ops sh7763_bus_clk_ops = {
+	.recalc		= bus_clk_recalc,
+};
+
+static void cpu_clk_recalc(struct clk *clk)
+{
+	clk->rate = clk->parent->rate;
+}
+
+static struct clk_ops sh7763_cpu_clk_ops = {
+	.recalc		= cpu_clk_recalc,
+};
+
+static struct clk_ops *sh7763_clk_ops[] = {
+	&sh7763_master_clk_ops,
+	&sh7763_module_clk_ops,
+	&sh7763_bus_clk_ops,
+	&sh7763_cpu_clk_ops,
+};
+
+void __init arch_init_clk_ops(struct clk_ops **ops, int idx)
+{
+	if (idx < ARRAY_SIZE(sh7763_clk_ops))
+		*ops = sh7763_clk_ops[idx];
+}
+
+static void shyway_clk_recalc(struct clk *clk)
+{
+	int idx = ((ctrl_inl(FRQCR) >> 20) & 0x07);
+	clk->rate = clk->parent->rate / cfc_divisors[idx];
+}
+
+static struct clk_ops sh7763_shyway_clk_ops = {
+	.recalc		= shyway_clk_recalc,
+};
+
+static struct clk sh7763_shyway_clk = {
+	.name		= "shyway_clk",
+	.flags		= CLK_ALWAYS_ENABLED,
+	.ops		= &sh7763_shyway_clk_ops,
+};
+
+/*
+ * Additional SH7763-specific on-chip clocks that aren't already part of the
+ * clock framework
+ */
+static struct clk *sh7763_onchip_clocks[] = {
+	&sh7763_shyway_clk,
+};
+
+static int __init sh7763_clk_init(void)
+{
+	struct clk *clk = clk_get(NULL, "master_clk");
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(sh7763_onchip_clocks); i++) {
+		struct clk *clkp = sh7763_onchip_clocks[i];
+
+		clkp->parent = clk;
+		clk_register(clkp);
+		clk_enable(clkp);
+	}
+
+	/*
+	 * Now that we have the rest of the clocks registered, we need to
+	 * force the parent clock to propagate so that these clocks will
+	 * automatically figure out their rate. We cheat by handing the
+	 * parent clock its current rate and forcing child propagation.
+	 */
+	clk_set_rate(clk, clk_get_rate(clk));
+
+	clk_put(clk);
+
+	return 0;
+}
+
+arch_initcall(sh7763_clk_init);
+
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
new file mode 100644
index 000000000000..eabd5386812d
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
@@ -0,0 +1,390 @@
+/*
+ * SH7763 Setup
+ *
+ *  Copyright (C) 2006  Paul Mundt
+ *  Copyright (C) 2007  Yoshihiro Shimoda
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/serial.h>
+#include <linux/io.h>
+#include <asm/sci.h>
+
+static struct resource rtc_resources[] = {
+	[0] = {
+		.start	= 0xffe80000,
+		.end	= 0xffe80000 + 0x58 - 1,
+		.flags	= IORESOURCE_IO,
+	},
+	[1] = {
+		/* Period IRQ */
+		.start	= 21,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		/* Carry IRQ */
+		.start	= 22,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		/* Alarm IRQ */
+		.start	= 20,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device rtc_device = {
+	.name		= "sh-rtc",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(rtc_resources),
+	.resource	= rtc_resources,
+};
+
+static struct plat_sci_port sci_platform_data[] = {
+	{
+		.mapbase	= 0xffe00000,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.type		= PORT_SCIF,
+		.irqs		= { 40, 41, 43, 42 },
+	}, {
+		.mapbase	= 0xffe08000,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.type		= PORT_SCIF,
+		.irqs		= { 76, 77, 79, 78 },
+	}, {
+		.flags = 0,
+	}
+};
+
+static struct platform_device sci_device = {
+	.name		= "sh-sci",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= sci_platform_data,
+	},
+};
+
+static struct resource usb_ohci_resources[] = {
+	[0] = {
+		.start	= 0xffec8000,
+		.end	= 0xffec80ff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= 83,
+		.end	= 83,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static u64 usb_ohci_dma_mask = 0xffffffffUL;
+static struct platform_device usb_ohci_device = {
+	.name		= "sh_ohci",
+	.id		= -1,
+	.dev = {
+		.dma_mask		= &usb_ohci_dma_mask,
+		.coherent_dma_mask	= 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(usb_ohci_resources),
+	.resource	= usb_ohci_resources,
+};
+
+static struct resource usbf_resources[] = {
+	[0] = {
+		.start	= 0xffec0000,
+		.end	= 0xffec00ff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= 84,
+		.end	= 84,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device usbf_device = {
+	.name		= "sh_udc",
+	.id		= -1,
+	.dev = {
+		.dma_mask		= NULL,
+		.coherent_dma_mask	= 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(usbf_resources),
+	.resource	= usbf_resources,
+};
+
+static struct platform_device *sh7763_devices[] __initdata = {
+	&rtc_device,
+	&sci_device,
+	&usb_ohci_device,
+	&usbf_device,
+};
+
+static int __init sh7763_devices_setup(void)
+{
+	return platform_add_devices(sh7763_devices,
+				    ARRAY_SIZE(sh7763_devices));
+}
+__initcall(sh7763_devices_setup);
+
+enum {
+	UNUSED = 0,
+
+	/* interrupt sources */
+
+	IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
+	IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
+	IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
+	IRL_HHLL, IRL_HHLH, IRL_HHHL,
+
+	IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7,
+	RTC_ATI, RTC_PRI, RTC_CUI,
+	WDT, TMU0, TMU1, TMU2, TMU2_TICPI,
+	HUDI, LCDC,
+	DMAC0_DMINT0, DMAC0_DMINT1, DMAC0_DMINT2, DMAC0_DMINT3, DMAC0_DMAE,
+	SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI,
+	DMAC0_DMINT4, DMAC0_DMINT5,
+	IIC0, IIC1,
+	CMT,
+	GEINT0, GEINT1, GEINT2,
+	HAC,
+	PCISERR, PCIINTA, PCIINTB, PCIINTC, PCIINTD,
+	PCIERR, PCIPWD3, PCIPWD2, PCIPWD1, PCIPWD0,
+	STIF0, STIF1,
+	SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI,
+	SIOF0, SIOF1, SIOF2,
+	USBH, USBFI0, USBFI1,
+	TPU, PCC,
+	MMCIF_FSTAT, MMCIF_TRAN, MMCIF_ERR, MMCIF_FRDY,
+	SIM_ERI, SIM_RXI, SIM_TXI, SIM_TEND,
+	TMU3, TMU4, TMU5, ADC, SSI0, SSI1, SSI2, SSI3,
+	SCIF2_ERI, SCIF2_RXI, SCIF2_BRI, SCIF2_TXI,
+	GPIO_CH0, GPIO_CH1, GPIO_CH2, GPIO_CH3,
+
+	/* interrupt groups */
+
+	TMU012, TMU345, RTC, DMAC, SCIF0, GETHER, PCIC5,
+	SCIF1, USBF, MMCIF, SIM, SCIF2, GPIO,
+};
+
+static struct intc_vect vectors[] __initdata = {
+	INTC_VECT(RTC_ATI, 0x480), INTC_VECT(RTC_PRI, 0x4a0),
+	INTC_VECT(RTC_CUI, 0x4c0),
+	INTC_VECT(WDT, 0x560), INTC_VECT(TMU0, 0x580),
+	INTC_VECT(TMU1, 0x5a0), INTC_VECT(TMU2, 0x5c0),
+	INTC_VECT(TMU2_TICPI, 0x5e0), INTC_VECT(HUDI, 0x600),
+	INTC_VECT(LCDC, 0x620),
+	INTC_VECT(DMAC0_DMINT0, 0x640), INTC_VECT(DMAC0_DMINT1, 0x660),
+	INTC_VECT(DMAC0_DMINT2, 0x680), INTC_VECT(DMAC0_DMINT3, 0x6a0),
+	INTC_VECT(DMAC0_DMAE, 0x6c0),
+	INTC_VECT(SCIF0_ERI, 0x700), INTC_VECT(SCIF0_RXI, 0x720),
+	INTC_VECT(SCIF0_BRI, 0x740), INTC_VECT(SCIF0_TXI, 0x760),
+	INTC_VECT(DMAC0_DMINT4, 0x780), INTC_VECT(DMAC0_DMINT5, 0x7a0),
+	INTC_VECT(IIC0, 0x8A0), INTC_VECT(IIC1, 0x8C0),
+	INTC_VECT(CMT, 0x900), INTC_VECT(GEINT0, 0x920),
+	INTC_VECT(GEINT1, 0x940), INTC_VECT(GEINT2, 0x960),
+	INTC_VECT(HAC, 0x980),
+	INTC_VECT(PCISERR, 0xa00), INTC_VECT(PCIINTA, 0xa20),
+	INTC_VECT(PCIINTB, 0xa40), INTC_VECT(PCIINTC, 0xa60),
+	INTC_VECT(PCIINTD, 0xa80), INTC_VECT(PCIERR, 0xaa0),
+	INTC_VECT(PCIPWD3, 0xac0), INTC_VECT(PCIPWD2, 0xae0),
+	INTC_VECT(PCIPWD1, 0xb00), INTC_VECT(PCIPWD0, 0xb20),
+	INTC_VECT(STIF0, 0xb40), INTC_VECT(STIF1, 0xb60),
+	INTC_VECT(SCIF1_ERI, 0xb80), INTC_VECT(SCIF1_RXI, 0xba0),
+	INTC_VECT(SCIF1_BRI, 0xbc0), INTC_VECT(SCIF1_TXI, 0xbe0),
+	INTC_VECT(SIOF0, 0xc00), INTC_VECT(SIOF1, 0xc20),
+	INTC_VECT(USBH, 0xc60), INTC_VECT(USBFI0, 0xc80),
+	INTC_VECT(USBFI1, 0xca0),
+	INTC_VECT(TPU, 0xcc0), INTC_VECT(PCC, 0xce0),
+	INTC_VECT(MMCIF_FSTAT, 0xd00), INTC_VECT(MMCIF_TRAN, 0xd20),
+	INTC_VECT(MMCIF_ERR, 0xd40), INTC_VECT(MMCIF_FRDY, 0xd60),
+	INTC_VECT(SIM_ERI, 0xd80), INTC_VECT(SIM_RXI, 0xda0),
+	INTC_VECT(SIM_TXI, 0xdc0), INTC_VECT(SIM_TEND, 0xde0),
+	INTC_VECT(TMU3, 0xe00), INTC_VECT(TMU4, 0xe20),
+	INTC_VECT(TMU5, 0xe40), INTC_VECT(ADC, 0xe60),
+	INTC_VECT(SSI0, 0xe80), INTC_VECT(SSI1, 0xea0),
+	INTC_VECT(SSI2, 0xec0), INTC_VECT(SSI3, 0xee0),
+	INTC_VECT(SCIF1_ERI, 0xf00), INTC_VECT(SCIF1_RXI, 0xf20),
+	INTC_VECT(SCIF1_BRI, 0xf40), INTC_VECT(SCIF1_TXI, 0xf60),
+	INTC_VECT(GPIO_CH0, 0xf80), INTC_VECT(GPIO_CH1, 0xfa0),
+	INTC_VECT(GPIO_CH2, 0xfc0), INTC_VECT(GPIO_CH3, 0xfe0),
+};
+
+static struct intc_group groups[] __initdata = {
+	INTC_GROUP(TMU012, TMU0, TMU1, TMU2, TMU2_TICPI),
+	INTC_GROUP(TMU345, TMU3, TMU4, TMU5),
+	INTC_GROUP(RTC, RTC_ATI, RTC_PRI, RTC_CUI),
+	INTC_GROUP(DMAC, DMAC0_DMINT0, DMAC0_DMINT1, DMAC0_DMINT2,
+		   DMAC0_DMINT3, DMAC0_DMINT4, DMAC0_DMINT5, DMAC0_DMAE),
+	INTC_GROUP(SCIF0, SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI),
+	INTC_GROUP(GETHER, GEINT0, GEINT1, GEINT2),
+	INTC_GROUP(PCIC5, PCIERR, PCIPWD3, PCIPWD2, PCIPWD1, PCIPWD0),
+	INTC_GROUP(SCIF1, SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI),
+	INTC_GROUP(USBF, USBFI0, USBFI1),
+	INTC_GROUP(MMCIF, MMCIF_FSTAT, MMCIF_TRAN, MMCIF_ERR, MMCIF_FRDY),
+	INTC_GROUP(SIM, SIM_ERI, SIM_RXI, SIM_TXI, SIM_TEND),
+	INTC_GROUP(SCIF2, SCIF2_ERI, SCIF2_RXI, SCIF2_BRI, SCIF2_TXI),
+	INTC_GROUP(GPIO, GPIO_CH0, GPIO_CH1, GPIO_CH2, GPIO_CH3),
+};
+
+static struct intc_prio priorities[] __initdata = {
+	INTC_PRIO(SCIF0, 3),
+	INTC_PRIO(SCIF1, 3),
+	INTC_PRIO(SCIF2, 3),
+};
+
+static struct intc_mask_reg mask_registers[] __initdata = {
+	{ 0xffd40038, 0xffd4003c, 32, /* INT2MSKR / INT2MSKCR */
+	  { 0, 0, 0, 0, 0, 0, GPIO, 0,
+	    SSI0, MMCIF, 0, SIOF0, PCIC5, PCIINTD, PCIINTC, PCIINTB,
+	    PCIINTA, PCISERR, HAC, CMT, 0, 0, 0, DMAC,
+	    HUDI, 0, WDT, SCIF1, SCIF0, RTC, TMU345, TMU012 } },
+	{ 0xffd400d0, 0xffd400d4, 32, /* INT2MSKR1 / INT2MSKCR1 */
+	  { 0, 0, 0, 0, 0, 0, SCIF2, USBF,
+	    0, 0, STIF1, STIF0, 0, 0, USBH, GETHER,
+	    PCC, 0, 0, ADC, TPU, SIM, SIOF2, SIOF1,
+	    LCDC, 0, IIC1, IIC0, SSI3, SSI2, SSI1, 0 } },
+};
+
+static struct intc_prio_reg prio_registers[] __initdata = {
+	{ 0xffd40000, 0, 32, 8, /* INT2PRI0 */ { TMU0, TMU1,
+						 TMU2, TMU2_TICPI } },
+	{ 0xffd40004, 0, 32, 8, /* INT2PRI1 */ { TMU3, TMU4, TMU5, RTC } },
+	{ 0xffd40008, 0, 32, 8, /* INT2PRI2 */ { SCIF0, SCIF1, WDT } },
+	{ 0xffd4000c, 0, 32, 8, /* INT2PRI3 */ { HUDI, DMAC, ADC } },
+	{ 0xffd40010, 0, 32, 8, /* INT2PRI4 */ { CMT, HAC,
+						 PCISERR, PCIINTA } },
+	{ 0xffd40014, 0, 32, 8, /* INT2PRI5 */ { PCIINTB, PCIINTC,
+						 PCIINTD, PCIC5 } },
+	{ 0xffd40018, 0, 32, 8, /* INT2PRI6 */ { SIOF0, USBF, MMCIF, SSI0 } },
+	{ 0xffd4001c, 0, 32, 8, /* INT2PRI7 */ { SCIF2, GPIO } },
+	{ 0xffd400a0, 0, 32, 8, /* INT2PRI8 */ { SSI3, SSI2, SSI1, 0 } },
+	{ 0xffd400a4, 0, 32, 8, /* INT2PRI9 */ { LCDC, 0, IIC1, IIC0 } },
+	{ 0xffd400a8, 0, 32, 8, /* INT2PRI10 */ { TPU, SIM, SIOF2, SIOF1 } },
+	{ 0xffd400ac, 0, 32, 8, /* INT2PRI11 */ { PCC } },
+	{ 0xffd400b0, 0, 32, 8, /* INT2PRI12 */ { 0, 0, USBH, GETHER } },
+	{ 0xffd400b4, 0, 32, 8, /* INT2PRI13 */ { 0, 0, STIF1, STIF0 } },
+};
+
+static DECLARE_INTC_DESC(intc_desc, "sh7763", vectors, groups, priorities,
+			 mask_registers, prio_registers, NULL);
+
+/* Support for external interrupt pins in IRQ mode */
+
+static struct intc_vect irq_vectors[] __initdata = {
+	INTC_VECT(IRQ0, 0x240), INTC_VECT(IRQ1, 0x280),
+	INTC_VECT(IRQ2, 0x2c0), INTC_VECT(IRQ3, 0x300),
+	INTC_VECT(IRQ4, 0x340), INTC_VECT(IRQ5, 0x380),
+	INTC_VECT(IRQ6, 0x3c0), INTC_VECT(IRQ7, 0x200),
+};
+
+static struct intc_mask_reg irq_mask_registers[] __initdata = {
+	{ 0xffd00044, 0xffd00064, 32, /* INTMSK0 / INTMSKCLR0 */
+	  { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
+};
+
+static struct intc_prio_reg irq_prio_registers[] __initdata = {
+	{ 0xffd00010, 0, 32, 4, /* INTPRI */ { IRQ0, IRQ1, IRQ2, IRQ3,
+					       IRQ4, IRQ5, IRQ6, IRQ7 } },
+};
+
+static struct intc_sense_reg irq_sense_registers[] __initdata = {
+	{ 0xffd0001c, 32, 2, /* ICR1 */   { IRQ0, IRQ1, IRQ2, IRQ3,
+					    IRQ4, IRQ5, IRQ6, IRQ7 } },
+};
+
+static DECLARE_INTC_DESC(intc_irq_desc, "sh7763-irq", irq_vectors,
+			 NULL, NULL, irq_mask_registers, irq_prio_registers,
+			 irq_sense_registers);
+
+/* External interrupt pins in IRL mode */
+
+static struct intc_vect irl_vectors[] __initdata = {
+	INTC_VECT(IRL_LLLL, 0x200), INTC_VECT(IRL_LLLH, 0x220),
+	INTC_VECT(IRL_LLHL, 0x240), INTC_VECT(IRL_LLHH, 0x260),
+	INTC_VECT(IRL_LHLL, 0x280), INTC_VECT(IRL_LHLH, 0x2a0),
+	INTC_VECT(IRL_LHHL, 0x2c0), INTC_VECT(IRL_LHHH, 0x2e0),
+	INTC_VECT(IRL_HLLL, 0x300), INTC_VECT(IRL_HLLH, 0x320),
+	INTC_VECT(IRL_HLHL, 0x340), INTC_VECT(IRL_HLHH, 0x360),
+	INTC_VECT(IRL_HHLL, 0x380), INTC_VECT(IRL_HHLH, 0x3a0),
+	INTC_VECT(IRL_HHHL, 0x3c0),
+};
+
+static struct intc_mask_reg irl3210_mask_registers[] __initdata = {
+	{ 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
+	  { IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
+	    IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
+	    IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
+	    IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
+};
+
+static struct intc_mask_reg irl7654_mask_registers[] __initdata = {
+	{ 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
+	  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	    IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
+	    IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
+	    IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
+	    IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
+};
+
+static DECLARE_INTC_DESC(intc_irl7654_desc, "sh7763-irl7654", irl_vectors,
+			 NULL, NULL, irl7654_mask_registers, NULL, NULL);
+
+static DECLARE_INTC_DESC(intc_irl3210_desc, "sh7763-irl3210", irl_vectors,
+			 NULL, NULL, irl3210_mask_registers, NULL, NULL);
+
+#define INTC_ICR0	0xffd00000
+#define INTC_INTMSK0	0xffd00044
+#define INTC_INTMSK1	0xffd00048
+#define INTC_INTMSK2	0xffd40080
+#define INTC_INTMSKCLR1	0xffd00068
+#define INTC_INTMSKCLR2	0xffd40084
+
+void __init plat_irq_setup(void)
+{
+	/* disable IRQ7-0 */
+	ctrl_outl(0xff000000, INTC_INTMSK0);
+
+	/* disable IRL3-0 + IRL7-4 */
+	ctrl_outl(0xc0000000, INTC_INTMSK1);
+	ctrl_outl(0xfffefffe, INTC_INTMSK2);
+
+	register_intc_controller(&intc_desc);
+}
+
+void __init plat_irq_setup_pins(int mode)
+{
+	switch (mode) {
+	case IRQ_MODE_IRQ:
+		/* select IRQ mode for IRL3-0 + IRL7-4 */
+		ctrl_outl(ctrl_inl(INTC_ICR0) | 0x00c00000, INTC_ICR0);
+		register_intc_controller(&intc_irq_desc);
+		break;
+	case IRQ_MODE_IRL7654:
+		/* enable IRL7-4 but don't provide any masking */
+		ctrl_outl(0x40000000, INTC_INTMSKCLR1);
+		ctrl_outl(0x0000fffe, INTC_INTMSKCLR2);
+		break;
+	case IRQ_MODE_IRL3210:
+		/* enable IRL0-3 but don't provide any masking */
+		ctrl_outl(0x80000000, INTC_INTMSKCLR1);
+		ctrl_outl(0xfffe0000, INTC_INTMSKCLR2);
+		break;
+	case IRQ_MODE_IRL7654_MASK:
+		/* enable IRL7-4 and mask using cpu intc controller */
+		ctrl_outl(0x40000000, INTC_INTMSKCLR1);
+		register_intc_controller(&intc_irl7654_desc);
+		break;
+	case IRQ_MODE_IRL3210_MASK:
+		/* enable IRL0-3 and mask using cpu intc controller */
+		ctrl_outl(0x80000000, INTC_INTMSKCLR1);
+		register_intc_controller(&intc_irl3210_desc);
+		break;
+	default:
+		BUG();
+	}
+}
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 48cd576754b5..9cf1d2e998bf 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -319,10 +319,10 @@ static const char *cpu_name[] = {
 	[CPU_SH7750R]	= "SH7750R",	[CPU_SH7751]	= "SH7751",
 	[CPU_SH7751R]	= "SH7751R",	[CPU_SH7760]	= "SH7760",
 	[CPU_SH4_202]	= "SH4-202",	[CPU_SH4_501]	= "SH4-501",
-	[CPU_SH7770]	= "SH7770",	[CPU_SH7780]	= "SH7780",
-	[CPU_SH7781]	= "SH7781",	[CPU_SH7343]	= "SH7343",
-	[CPU_SH7785]	= "SH7785",	[CPU_SH7722]	= "SH7722",
-	[CPU_SHX3]	= "SH-X3",
+	[CPU_SH7763]	= "SH7763",	[CPU_SH7770]	= "SH7770",
+	[CPU_SH7780]	= "SH7780",	[CPU_SH7781]	= "SH7781",
+	[CPU_SH7343]	= "SH7343",	[CPU_SH7785]	= "SH7785",
+	[CPU_SH7722]	= "SH7722",	[CPU_SHX3]	= "SH-X3",
 	[CPU_SH5_101]	= "SH5-101",	[CPU_SH5_103]	= "SH5-103",
 	[CPU_SH_NONE]	= "Unknown"
 };
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 6fbfd140b7e7..ddf639144538 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -395,7 +395,8 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
 	} else {
 #ifdef CONFIG_CPU_SUBTYPE_SH7343
 		/* Nothing */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7780) || \
+#elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7780) || \
       defined(CONFIG_CPU_SUBTYPE_SH7785) || \
       defined(CONFIG_CPU_SUBTYPE_SHX3)
 		ctrl_outw(0x0080, SCSPTR0); /* Set RTS = 1 */
@@ -408,6 +409,7 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
 #endif
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7763) || \
     defined(CONFIG_CPU_SUBTYPE_SH7780) || \
     defined(CONFIG_CPU_SUBTYPE_SH7785)
 static inline int scif_txroom(struct uart_port *port)
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 85562040a6d3..f5764ebcfe07 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -120,6 +120,12 @@
 # define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
 # define SCI_ONLY
 # define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7763)
+# define SCSPTR0 0xffe00024 /* 16 bit SCIF */
+# define SCSPTR1 0xffe08024 /* 16 bit SCIF */
+# define SCIF_ORER 0x0001  /* overrun error bit */
+# define SCSCR_INIT(port)	0x3a	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
+# define SCIF_ONLY
 #elif defined(CONFIG_CPU_SUBTYPE_SH7770)
 # define SCSPTR0 0xff923020 /* 16 bit SCIF */
 # define SCSPTR1 0xff924020 /* 16 bit SCIF */
@@ -419,6 +425,7 @@ SCIx_FNS(SCxSR,  0x08,  8, 0x10,  8, 0x08, 16, 0x10, 16, 0x04,  8)
 SCIx_FNS(SCxRDR, 0x0a,  8, 0x14,  8, 0x0A,  8, 0x14,  8, 0x05,  8)
 SCIF_FNS(SCFCR,                      0x0c,  8, 0x18, 16)
 #if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7763) || \
     defined(CONFIG_CPU_SUBTYPE_SH7780) || \
     defined(CONFIG_CPU_SUBTYPE_SH7785)
 SCIF_FNS(SCFDR,			     0x0e, 16, 0x1C, 16)
@@ -588,6 +595,15 @@ static inline int sci_rxd_in(struct uart_port *port)
 	int ch = (port->mapbase - SMR0) >> 3;
 	return (H8300_SCI_DR(ch) & h8300_sci_pins[ch].rx) ? 1 : 0;
 }
+#elif defined(CONFIG_CPU_SUBTYPE_SH7763)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+	if (port->mapbase == 0xffe00000)
+		return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */
+	if (port->mapbase == 0xffe08000)
+		return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
+	return 1;
+}
 #elif defined(CONFIG_CPU_SUBTYPE_SH7770)
 static inline int sci_rxd_in(struct uart_port *port)
 {
@@ -698,7 +714,8 @@ static inline int sci_rxd_in(struct uart_port *port)
  * -- Mitch Davis - 15 Jul 2000
  */
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7780) || \
+#if defined(CONFIG_CPU_SUBTYPE_SH7763) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7780) || \
     defined(CONFIG_CPU_SUBTYPE_SH7785)
 #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1)
 #elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
diff --git a/include/asm-sh/bugs.h b/include/asm-sh/bugs.h
index 9ce67fd51190..def8128b8b78 100644
--- a/include/asm-sh/bugs.h
+++ b/include/asm-sh/bugs.h
@@ -35,7 +35,7 @@ static void __init check_bugs(void)
 	case CPU_SH7750 ... CPU_SH4_501:
 		*p++ = '4';
 		break;
-	case CPU_SH7770 ... CPU_SHX3:
+	case CPU_SH7763 ... CPU_SHX3:
 		*p++ = '4';
 		*p++ = 'a';
 		break;
diff --git a/include/asm-sh/cpu-sh4/freq.h b/include/asm-sh/cpu-sh4/freq.h
index dc1d32a86374..1ac10b9a078f 100644
--- a/include/asm-sh/cpu-sh4/freq.h
+++ b/include/asm-sh/cpu-sh4/freq.h
@@ -16,7 +16,8 @@
 #define SCLKACR			0xa4150008
 #define SCLKBCR			0xa415000c
 #define IrDACLKCR		0xa4150010
-#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7780)
 #define	FRQCR			0xffc80000
 #elif defined(CONFIG_CPU_SUBTYPE_SH7785)
 #define FRQCR0			0xffc80000
diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h
index f4a8da71ba45..c9b14161f73d 100644
--- a/include/asm-sh/processor.h
+++ b/include/asm-sh/processor.h
@@ -30,7 +30,7 @@ enum cpu_type {
 	CPU_SH7760, CPU_SH4_202, CPU_SH4_501,
 
 	/* SH-4A types */
-	CPU_SH7770, CPU_SH7780, CPU_SH7781, CPU_SH7785, CPU_SHX3,
+	CPU_SH7763, CPU_SH7770, CPU_SH7780, CPU_SH7781, CPU_SH7785, CPU_SHX3,
 
 	/* SH4AL-DSP types */
 	CPU_SH7343, CPU_SH7722,
-- 
cgit v1.2.3-59-g8ed1b


From c3aa92afd0a6c253df974556b4a43c0a182d1fc4 Mon Sep 17 00:00:00 2001
From: Andrew Murray <amurray@mpc-data.co.uk>
Date: Tue, 8 Jan 2008 09:56:45 +0900
Subject: sh: sh7712 clock support

This patch provides specific clock support for the SH7712.

Signed-off-by: Andrew Murray <amurray@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/sh3/Makefile       |  1 +
 arch/sh/kernel/cpu/sh3/clock-sh7712.c | 71 +++++++++++++++++++++++++++++++++++
 include/asm-sh/cpu-sh3/freq.h         |  5 +++
 3 files changed, 77 insertions(+)
 create mode 100644 arch/sh/kernel/cpu/sh3/clock-sh7712.c

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/sh3/Makefile b/arch/sh/kernel/cpu/sh3/Makefile
index 1afd05e62d1c..3ae4d9111f19 100644
--- a/arch/sh/kernel/cpu/sh3/Makefile
+++ b/arch/sh/kernel/cpu/sh3/Makefile
@@ -22,5 +22,6 @@ clock-$(CONFIG_CPU_SUBTYPE_SH7706)	:= clock-sh7706.o
 clock-$(CONFIG_CPU_SUBTYPE_SH7709)	:= clock-sh7709.o
 clock-$(CONFIG_CPU_SUBTYPE_SH7710)	:= clock-sh7710.o
 clock-$(CONFIG_CPU_SUBTYPE_SH7720)	:= clock-sh7710.o
+clock-$(CONFIG_CPU_SUBTYPE_SH7712)	:= clock-sh7712.o
 
 obj-y	+= $(clock-y)
diff --git a/arch/sh/kernel/cpu/sh3/clock-sh7712.c b/arch/sh/kernel/cpu/sh3/clock-sh7712.c
new file mode 100644
index 000000000000..54f54df51ef0
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh3/clock-sh7712.c
@@ -0,0 +1,71 @@
+/*
+ * arch/sh/kernel/cpu/sh3/clock-sh7712.c
+ *
+ * SH7712 support for the clock framework
+ *
+ *  Copyright (C) 2007  Andrew Murray <amurray@mpc-data.co.uk>
+ *
+ * Based on arch/sh/kernel/cpu/sh3/clock-sh3.c
+ *  Copyright (C) 2005  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <asm/clock.h>
+#include <asm/freq.h>
+#include <asm/io.h>
+
+static int multipliers[] = { 1, 2, 3 };
+static int divisors[]    = { 1, 2, 3, 4, 6 };
+
+static void master_clk_init(struct clk *clk)
+{
+	int frqcr = ctrl_inw(FRQCR);
+	int idx = (frqcr & 0x0300) >> 8;
+
+	clk->rate *= multipliers[idx];
+}
+
+static struct clk_ops sh7712_master_clk_ops = {
+	.init		= master_clk_init,
+};
+
+static void module_clk_recalc(struct clk *clk)
+{
+	int frqcr = ctrl_inw(FRQCR);
+	int idx = frqcr & 0x0007;
+
+	clk->rate = clk->parent->rate / divisors[idx];
+}
+
+static struct clk_ops sh7712_module_clk_ops = {
+	.recalc		= module_clk_recalc,
+};
+
+static void cpu_clk_recalc(struct clk *clk)
+{
+	int frqcr = ctrl_inw(FRQCR);
+	int idx = (frqcr & 0x0030) >> 4;
+
+	clk->rate = clk->parent->rate / divisors[idx];
+}
+
+static struct clk_ops sh7712_cpu_clk_ops = {
+	.recalc		= cpu_clk_recalc,
+};
+
+static struct clk_ops *sh7712_clk_ops[] = {
+	&sh7712_master_clk_ops,
+	&sh7712_module_clk_ops,
+	&sh7712_cpu_clk_ops,
+};
+
+void __init arch_init_clk_ops(struct clk_ops **ops, int idx)
+{
+	if (idx < ARRAY_SIZE(sh7712_clk_ops))
+		*ops = sh7712_clk_ops[idx];
+}
+
diff --git a/include/asm-sh/cpu-sh3/freq.h b/include/asm-sh/cpu-sh3/freq.h
index 0a054b53b9de..53c62302b2e3 100644
--- a/include/asm-sh/cpu-sh3/freq.h
+++ b/include/asm-sh/cpu-sh3/freq.h
@@ -10,7 +10,12 @@
 #ifndef __ASM_CPU_SH3_FREQ_H
 #define __ASM_CPU_SH3_FREQ_H
 
+#ifdef CONFIG_CPU_SUBTYPE_SH7712
+#define FRQCR			0xA415FF80
+#else
 #define FRQCR			0xffffff80
+#endif
+
 #define MIN_DIVISOR_NR		0
 #define MAX_DIVISOR_NR		4
 
-- 
cgit v1.2.3-59-g8ed1b


From 6e3037d30e0abb8e84d0e05144b99047d5bab897 Mon Sep 17 00:00:00 2001
From: Andrew Murray <amurray@mpc-data.co.uk>
Date: Tue, 8 Jan 2008 13:27:23 +0900
Subject: sh: Update SE7712 PCLK definition.

This patch provides a correct value for CONFIG_SH_PCLK_FREQ for the
SH7712 solution engine when used with the board's default factory
settings. This results in the board running at its maximum CPU clock
rate (200 MHz).

Signed-off-by: Andrew Murray <amurray@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/configs/se7712_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/configs/se7712_defconfig b/arch/sh/configs/se7712_defconfig
index a5e37dbc5353..240a1cef69aa 100644
--- a/arch/sh/configs/se7712_defconfig
+++ b/arch/sh/configs/se7712_defconfig
@@ -237,7 +237,7 @@ CONFIG_CPU_HAS_SR_RB=y
 CONFIG_SH_TMU=y
 CONFIG_SH_TIMER_IRQ=16
 # CONFIG_NO_IDLE_HZ is not set
-CONFIG_SH_PCLK_FREQ=33333333
+CONFIG_SH_PCLK_FREQ=66666666
 
 #
 # CPU Frequency scaling
-- 
cgit v1.2.3-59-g8ed1b


From b62ad83d91ebf1368e9e72d476b18698ac67bef9 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 10 Jan 2008 14:07:03 +0900
Subject: sh: Correct pte size mismatch for X2 TLB.

Fixes up a build warning/error in arch/sh/mm/fault_32.c.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/fault_32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/mm/fault_32.c b/arch/sh/mm/fault_32.c
index 60d74f793a1d..33b43d20e9f6 100644
--- a/arch/sh/mm/fault_32.c
+++ b/arch/sh/mm/fault_32.c
@@ -172,7 +172,7 @@ no_context:
 	bust_spinlocks(1);
 
 	if (oops_may_print()) {
-		__typeof__(pte_val(__pte(0))) page;
+		unsigned long page;
 
 		if (address < PAGE_SIZE)
 			printk(KERN_ALERT "Unable to handle kernel NULL "
-- 
cgit v1.2.3-59-g8ed1b


From 7f3edee81fbd49114c28057512906f169caa0bed Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@igel.co.jp>
Date: Thu, 10 Jan 2008 14:08:55 +0900
Subject: sh: intc - remove default interrupt priority tables

This patch removes interrupt priority tables from the intc code.
Optimal priority assignment varies with embedded application anyway,
so keeping the interrupt priority tables together with cpu-specific
code doesn't make sense.

The function intc_set_priority() should be used instead to set the
desired interrupt priority level.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/renesas/r7780rp/irq-r7780mp.c |  2 +-
 arch/sh/boards/renesas/r7780rp/irq-r7785rp.c |  2 +-
 arch/sh/boards/renesas/rts7751r2d/irq.c      |  4 ++--
 arch/sh/cchips/voyagergx/irq.c               |  2 +-
 arch/sh/kernel/cpu/irq/intc.c                | 31 ++++------------------------
 arch/sh/kernel/cpu/sh2/setup-sh7619.c        |  2 +-
 arch/sh/kernel/cpu/sh2a/setup-sh7203.c       |  2 +-
 arch/sh/kernel/cpu/sh2a/setup-sh7206.c       |  2 +-
 arch/sh/kernel/cpu/sh3/setup-sh7705.c        | 10 ++-------
 arch/sh/kernel/cpu/sh3/setup-sh770x.c        | 11 ++--------
 arch/sh/kernel/cpu/sh3/setup-sh7710.c        | 16 ++------------
 arch/sh/kernel/cpu/sh3/setup-sh7720.c        | 14 ++-----------
 arch/sh/kernel/cpu/sh4/setup-sh7750.c        | 18 ++++++----------
 arch/sh/kernel/cpu/sh4/setup-sh7760.c        | 13 ++----------
 arch/sh/kernel/cpu/sh4a/setup-sh7722.c       | 10 +--------
 arch/sh/kernel/cpu/sh4a/setup-sh7780.c       | 13 ++++--------
 arch/sh/kernel/cpu/sh4a/setup-sh7785.c       | 19 +++++------------
 arch/sh/kernel/cpu/sh4a/setup-shx3.c         | 14 +++----------
 include/asm-sh/hw_irq.h                      | 12 +----------
 19 files changed, 42 insertions(+), 155 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/boards/renesas/r7780rp/irq-r7780mp.c b/arch/sh/boards/renesas/r7780rp/irq-r7780mp.c
index 59b47fe061f9..1f8f073f27be 100644
--- a/arch/sh/boards/renesas/r7780rp/irq-r7780mp.c
+++ b/arch/sh/boards/renesas/r7780rp/irq-r7780mp.c
@@ -47,7 +47,7 @@ static unsigned char irl2irq[HL_NR_IRL] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "r7780mp", vectors,
-			 NULL, NULL, mask_registers, NULL, NULL);
+			 NULL, mask_registers, NULL, NULL);
 
 unsigned char * __init highlander_init_irq_r7780mp(void)
 {
diff --git a/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c b/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c
index b2c6a84673bd..bbf18afc29a7 100644
--- a/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c
+++ b/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c
@@ -41,7 +41,7 @@ static unsigned char irl2irq[HL_NR_IRL] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "r7785rp", vectors,
-			 NULL, NULL, mask_registers, NULL, NULL);
+			 NULL, mask_registers, NULL, NULL);
 
 unsigned char * __init highlander_init_irq_r7785rp(void)
 {
diff --git a/arch/sh/boards/renesas/rts7751r2d/irq.c b/arch/sh/boards/renesas/rts7751r2d/irq.c
index 7cc2813adfe4..3fecd49e0d2a 100644
--- a/arch/sh/boards/renesas/rts7751r2d/irq.c
+++ b/arch/sh/boards/renesas/rts7751r2d/irq.c
@@ -71,7 +71,7 @@ static unsigned char irl2irq_r2d_1[R2D_NR_IRL] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_r2d_1, "r2d-1", vectors_r2d_1,
-			 NULL, NULL, mask_registers_r2d_1, NULL, NULL);
+			 NULL, mask_registers_r2d_1, NULL, NULL);
 
 #endif /* CONFIG_RTS7751R2D_1 */
 
@@ -109,7 +109,7 @@ static unsigned char irl2irq_r2d_plus[R2D_NR_IRL] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_r2d_plus, "r2d-plus", vectors_r2d_plus,
-			 NULL, NULL, mask_registers_r2d_plus, NULL, NULL);
+			 NULL, mask_registers_r2d_plus, NULL, NULL);
 
 #endif /* CONFIG_RTS7751R2D_PLUS */
 
diff --git a/arch/sh/cchips/voyagergx/irq.c b/arch/sh/cchips/voyagergx/irq.c
index ade303876841..e7e78c612fad 100644
--- a/arch/sh/cchips/voyagergx/irq.c
+++ b/arch/sh/cchips/voyagergx/irq.c
@@ -58,7 +58,7 @@ static struct intc_mask_reg mask_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "voyagergx", vectors,
-			 NULL, NULL, mask_registers, NULL, NULL);
+			 NULL, mask_registers, NULL, NULL);
 
 static unsigned int voyagergx_stat2irq[32] = {
 	IRQ_SM501_CI, IRQ_SM501_PV, IRQ_SM501_ZD, IRQ_SM501_2D,
diff --git a/arch/sh/kernel/cpu/irq/intc.c b/arch/sh/kernel/cpu/irq/intc.c
index 6ac018c15e03..84806b2027f8 100644
--- a/arch/sh/kernel/cpu/irq/intc.c
+++ b/arch/sh/kernel/cpu/irq/intc.c
@@ -335,31 +335,6 @@ static intc_enum __init intc_grp_id(struct intc_desc *desc,
 	return 0;
 }
 
-static unsigned int __init intc_prio_value(struct intc_desc *desc,
-					   intc_enum enum_id, int do_grps)
-{
-	struct intc_prio *p = desc->priorities;
-	unsigned int i;
-
-	for (i = 0; p && enum_id && i < desc->nr_priorities; i++) {
-		p = desc->priorities + i;
-
-		if (p->enum_id != enum_id)
-			continue;
-
-		return p->priority;
-	}
-
-	if (do_grps)
-		return intc_prio_value(desc, intc_grp_id(desc, enum_id), 0);
-
-	/* default to the lowest priority possible if no priority is set
-	 * - this needs to be at least 2 for 5-bit priorities on 7780
-	 */
-
-	return 2;
-}
-
 static unsigned int __init intc_mask_data(struct intc_desc *desc,
 					  struct intc_desc_int *d,
 					  intc_enum enum_id, int do_grps)
@@ -518,8 +493,10 @@ static void __init intc_register_irq(struct intc_desc *desc,
 				      handle_level_irq, "level");
 	set_irq_chip_data(irq, (void *)data[primary]);
 
-	/* record the desired priority level */
-	intc_prio_level[irq] = intc_prio_value(desc, enum_id, 1);
+	/* set priority level
+	 * - this needs to be at least 2 for 5-bit priorities on 7780
+	 */
+	intc_prio_level[irq] = 2;
 
 	/* enable secondary masking method if present */
 	if (data[!primary])
diff --git a/arch/sh/kernel/cpu/sh2/setup-sh7619.c b/arch/sh/kernel/cpu/sh2/setup-sh7619.c
index ec6adc3f306f..b230eb278cef 100644
--- a/arch/sh/kernel/cpu/sh2/setup-sh7619.c
+++ b/arch/sh/kernel/cpu/sh2/setup-sh7619.c
@@ -65,7 +65,7 @@ static struct intc_prio_reg prio_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, groups,
-			 NULL, NULL, prio_registers, NULL);
+			 NULL, prio_registers, NULL);
 
 static struct plat_sci_port sci_platform_data[] = {
 	{
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
index 3518f9c37d93..db6ef5cecde1 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
@@ -235,7 +235,7 @@ static struct intc_mask_reg mask_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "sh7203", vectors, groups,
-			 NULL, mask_registers, prio_registers, NULL);
+			 mask_registers, prio_registers, NULL);
 
 static struct plat_sci_port sci_platform_data[] = {
 	{
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
index bd745aa87222..a564425b905f 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
@@ -167,7 +167,7 @@ static struct intc_mask_reg mask_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "sh7206", vectors, groups,
-			 NULL, mask_registers, prio_registers, NULL);
+			 mask_registers, prio_registers, NULL);
 
 static struct plat_sci_port sci_platform_data[] = {
 	{
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
index f6c65f2659e9..dd0a20a685f7 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7705.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
@@ -66,12 +66,6 @@ static struct intc_group groups[] __initdata = {
 	INTC_GROUP(SCIF2, SCIF2_ERI, SCIF2_RXI, SCIF2_TXI),
 };
 
-static struct intc_prio priorities[] __initdata = {
-	INTC_PRIO(DMAC, 7),
-	INTC_PRIO(SCIF2, 3),
-	INTC_PRIO(SCIF0, 3),
-};
-
 static struct intc_prio_reg prio_registers[] __initdata = {
 	{ 0xfffffee2, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
 	{ 0xfffffee4, 0, 16, 4, /* IPRB */ { WDT, REF_RCMI, 0, 0 } },
@@ -85,7 +79,7 @@ static struct intc_prio_reg prio_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "sh7705", vectors, groups,
-			 priorities, NULL, prio_registers, NULL);
+			 NULL, prio_registers, NULL);
 
 static struct intc_vect vectors_irq[] __initdata = {
 	INTC_VECT(IRQ0, 0x600), INTC_VECT(IRQ1, 0x620),
@@ -93,7 +87,7 @@ static struct intc_vect vectors_irq[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_irq, "sh7705-irq", vectors_irq, NULL,
-			 priorities, NULL, prio_registers, NULL);
+			 NULL, prio_registers, NULL);
 
 static struct plat_sci_port sci_platform_data[] = {
 	{
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index 60b04b1f9453..969804bb523b 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -81,13 +81,6 @@ static struct intc_group groups[] __initdata = {
 	INTC_GROUP(SCIF2, SCIF2_ERI, SCIF2_RXI, SCIF2_BRI, SCIF2_TXI),
 };
 
-static struct intc_prio priorities[] __initdata = {
-	INTC_PRIO(DMAC, 7),
-	INTC_PRIO(SCI, 3),
-	INTC_PRIO(SCIF2, 3),
-	INTC_PRIO(SCIF0, 3),
-};
-
 static struct intc_prio_reg prio_registers[] __initdata = {
 	{ 0xfffffee2, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
 	{ 0xfffffee4, 0, 16, 4, /* IPRB */ { WDT, REF, SCI, 0 } },
@@ -109,7 +102,7 @@ static struct intc_prio_reg prio_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "sh770x", vectors, groups,
-			 priorities, NULL, prio_registers, NULL);
+			 NULL, prio_registers, NULL);
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
     defined(CONFIG_CPU_SUBTYPE_SH7707) || \
@@ -120,7 +113,7 @@ static struct intc_vect vectors_irq[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_irq, "sh770x-irq", vectors_irq, NULL,
-			 priorities, NULL, prio_registers, NULL);
+			 NULL, prio_registers, NULL);
 #endif
 
 static struct resource rtc_resources[] = {
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
index 84e5629fa841..0cc0e2bf135d 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7710.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
@@ -73,18 +73,6 @@ static struct intc_group groups[] __initdata = {
 	INTC_GROUP(SIOF1, SIOF1_ERI, SIOF1_TXI, SIOF1_RXI, SIOF1_CCI),
 };
 
-static struct intc_prio priorities[] __initdata = {
-	INTC_PRIO(DMAC1, 7),
-	INTC_PRIO(DMAC2, 7),
-	INTC_PRIO(SCIF0, 3),
-	INTC_PRIO(SCIF1, 3),
-	INTC_PRIO(SIOF0, 3),
-	INTC_PRIO(SIOF1, 3),
-	INTC_PRIO(EDMAC0, 5),
-	INTC_PRIO(EDMAC1, 5),
-	INTC_PRIO(EDMAC2, 5),
-};
-
 static struct intc_prio_reg prio_registers[] __initdata = {
 	{ 0xfffffee2, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
 	{ 0xfffffee4, 0, 16, 4, /* IPRB */ { WDT, REF, 0, 0 } },
@@ -101,7 +89,7 @@ static struct intc_prio_reg prio_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "sh7710", vectors, groups,
-			 priorities, NULL, prio_registers, NULL);
+			 NULL, prio_registers, NULL);
 
 static struct intc_vect vectors_irq[] __initdata = {
 	INTC_VECT(IRQ0, 0x600), INTC_VECT(IRQ1, 0x620),
@@ -109,7 +97,7 @@ static struct intc_vect vectors_irq[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_irq, "sh7710-irq", vectors_irq, NULL,
-			 priorities, NULL, prio_registers, NULL);
+			 NULL, prio_registers, NULL);
 
 static struct resource rtc_resources[] = {
 	[0] =	{
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7720.c b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
index 00facd028a08..c00471a89212 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7720.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
@@ -156,16 +156,6 @@ static struct intc_group groups[] __initdata = {
 	INTC_GROUP(MMC, MMCI0, MMCI1, MMCI2, MMCI3),
 };
 
-static struct intc_prio priorities[] __initdata = {
-	INTC_PRIO(SCIF0, 2),
-	INTC_PRIO(SCIF1, 2),
-	INTC_PRIO(DMAC1, 1),
-	INTC_PRIO(DMAC2, 1),
-	INTC_PRIO(RTC, 2),
-	INTC_PRIO(TMU, 2),
-	INTC_PRIO(TPU, 2),
-};
-
 static struct intc_prio_reg prio_registers[] __initdata = {
 	{ 0xA414FEE2UL, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
 	{ 0xA414FEE4UL, 0, 16, 4, /* IPRB */ { WDT, REF_RCMI, SIM, 0 } },
@@ -184,7 +174,7 @@ static struct intc_prio_reg prio_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "sh7720", vectors, groups,
-		priorities, NULL, prio_registers, NULL);
+		NULL, prio_registers, NULL);
 
 static struct intc_sense_reg sense_registers[] __initdata = {
 	{ INTC_ICR1, 16, 2, { 0, 0, IRQ5, IRQ4, IRQ3, IRQ2, IRQ1, IRQ0 } },
@@ -197,7 +187,7 @@ static struct intc_vect vectors_irq[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_irq_desc, "sh7720-irq", vectors_irq,
-		NULL, priorities, NULL, prio_registers, sense_registers);
+		NULL, NULL, prio_registers, sense_registers);
 
 void __init plat_irq_setup_pins(int mode)
 {
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index 523f68a9ce0e..ae3603aca615 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -126,12 +126,6 @@ static struct intc_group groups[] __initdata = {
 	INTC_GROUP(REF, REF_RCMI, REF_ROVI),
 };
 
-static struct intc_prio priorities[] __initdata = {
-	INTC_PRIO(SCIF, 3),
-	INTC_PRIO(SCI1, 3),
-	INTC_PRIO(DMAC, 7),
-};
-
 static struct intc_prio_reg prio_registers[] __initdata = {
 	{ 0xffd00004, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
 	{ 0xffd00008, 0, 16, 4, /* IPRB */ { WDT, REF, SCI1, 0 } },
@@ -143,7 +137,7 @@ static struct intc_prio_reg prio_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "sh7750", vectors, groups,
-			 priorities, NULL, prio_registers, NULL);
+			 NULL, prio_registers, NULL);
 
 /* SH7750, SH7750S, SH7751 and SH7091 all have 4-channel DMA controllers */
 #if defined(CONFIG_CPU_SUBTYPE_SH7750) || \
@@ -163,7 +157,7 @@ static struct intc_group groups_dma4[] __initdata = {
 
 static DECLARE_INTC_DESC(intc_desc_dma4, "sh7750_dma4",
 			 vectors_dma4, groups_dma4,
-			 priorities, NULL, prio_registers, NULL);
+			 NULL, prio_registers, NULL);
 #endif
 
 /* SH7750R and SH7751R both have 8-channel DMA controllers */
@@ -184,7 +178,7 @@ static struct intc_group groups_dma8[] __initdata = {
 
 static DECLARE_INTC_DESC(intc_desc_dma8, "sh7750_dma8",
 			 vectors_dma8, groups_dma8,
-			 priorities, NULL, prio_registers, NULL);
+			 NULL, prio_registers, NULL);
 #endif
 
 /* SH7750R, SH7751 and SH7751R all have two extra timer channels */
@@ -205,7 +199,7 @@ static struct intc_mask_reg mask_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_tmu34, "sh7750_tmu34",
-			 vectors_tmu34, NULL, priorities,
+			 vectors_tmu34, NULL,
 			 mask_registers, prio_registers, NULL);
 #endif
 
@@ -216,7 +210,7 @@ static struct intc_vect vectors_irlm[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_irlm, "sh7750_irlm", vectors_irlm, NULL,
-			 priorities, NULL, prio_registers, NULL);
+			 NULL, prio_registers, NULL);
 
 /* SH7751 and SH7751R both have PCI */
 #if defined(CONFIG_CPU_SUBTYPE_SH7751) || defined(CONFIG_CPU_SUBTYPE_SH7751R)
@@ -233,7 +227,7 @@ static struct intc_group groups_pci[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_pci, "sh7750_pci", vectors_pci, groups_pci,
-			 priorities, mask_registers, prio_registers, NULL);
+			 mask_registers, prio_registers, NULL);
 #endif
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7750) || \
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
index 7a898cb1d940..85f81579b97e 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
@@ -92,15 +92,6 @@ static struct intc_group groups[] __initdata = {
 	INTC_GROUP(REF, REF_RCMI, REF_ROVI),
 };
 
-static struct intc_prio priorities[] __initdata = {
-	INTC_PRIO(SCIF0, 3),
-	INTC_PRIO(SCIF1, 3),
-	INTC_PRIO(SCIF2, 3),
-	INTC_PRIO(SIM, 3),
-	INTC_PRIO(DMAC, 7),
-	INTC_PRIO(DMABRG, 13),
-};
-
 static struct intc_mask_reg mask_registers[] __initdata = {
 	{ 0xfe080040, 0xfe080060, 32, /* INTMSK00 / INTMSKCLR00 */
 	  { IRQ4, IRQ5, IRQ6, IRQ7, 0, 0, HCAN20, HCAN21,
@@ -132,7 +123,7 @@ static struct intc_prio_reg prio_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "sh7760", vectors, groups,
-			 priorities, mask_registers, prio_registers, NULL);
+			 mask_registers, prio_registers, NULL);
 
 static struct intc_vect vectors_irq[] __initdata = {
 	INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0),
@@ -140,7 +131,7 @@ static struct intc_vect vectors_irq[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_irq, "sh7760-irq", vectors_irq, groups,
-			 priorities, mask_registers, prio_registers, NULL);
+			 mask_registers, prio_registers, NULL);
 
 static struct plat_sci_port sci_platform_data[] = {
 	{
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
index b9c6547c4a90..73c778d40d13 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
@@ -157,14 +157,6 @@ static struct intc_group groups[] __initdata = {
 	INTC_GROUP(SDHI, SDHI0, SDHI1, SDHI2, SDHI3),
 };
 
-static struct intc_prio priorities[] __initdata = {
-	INTC_PRIO(SCIF0, 3),
-	INTC_PRIO(SCIF1, 3),
-	INTC_PRIO(SCIF2, 3),
-	INTC_PRIO(TMU0, 2),
-	INTC_PRIO(TMU1, 2),
-};
-
 static struct intc_mask_reg mask_registers[] __initdata = {
 	{ 0xa4080080, 0xa40800c0, 8, /* IMR0 / IMCR0 */
 	  { } },
@@ -217,7 +209,7 @@ static struct intc_sense_reg sense_registers[] __initdata = {
 	  { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
 };
 
-static DECLARE_INTC_DESC(intc_desc, "sh7722", vectors, groups, priorities,
+static DECLARE_INTC_DESC(intc_desc, "sh7722", vectors, groups,
 			 mask_registers, prio_registers, sense_registers);
 
 void __init plat_irq_setup(void)
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
index e8fd33ff0605..293004b526ff 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
@@ -168,11 +168,6 @@ static struct intc_group groups[] __initdata = {
 	INTC_GROUP(GPIO, GPIOI0, GPIOI1, GPIOI2, GPIOI3),
 };
 
-static struct intc_prio priorities[] __initdata = {
-	INTC_PRIO(SCIF0, 3),
-	INTC_PRIO(SCIF1, 3),
-};
-
 static struct intc_mask_reg mask_registers[] __initdata = {
 	{ 0xffd40038, 0xffd4003c, 32, /* INT2MSKR / INT2MSKCR */
 	  { 0, 0, 0, 0, 0, 0, GPIO, FLCTL,
@@ -195,7 +190,7 @@ static struct intc_prio_reg prio_registers[] __initdata = {
 	{ 0xffd4001c, 0, 32, 8, /* INT2PRI7 */ { FLCTL, GPIO } },
 };
 
-static DECLARE_INTC_DESC(intc_desc, "sh7780", vectors, groups, priorities,
+static DECLARE_INTC_DESC(intc_desc, "sh7780", vectors, groups,
 			 mask_registers, prio_registers, NULL);
 
 /* Support for external interrupt pins in IRQ mode */
@@ -223,7 +218,7 @@ static struct intc_sense_reg irq_sense_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_irq_desc, "sh7780-irq", irq_vectors,
-			 NULL, NULL, irq_mask_registers, irq_prio_registers,
+			 NULL, irq_mask_registers, irq_prio_registers,
 			 irq_sense_registers);
 
 /* External interrupt pins in IRL mode */
@@ -257,10 +252,10 @@ static struct intc_mask_reg irl7654_mask_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_irl7654_desc, "sh7780-irl7654", irl_vectors,
-			 NULL, NULL, irl7654_mask_registers, NULL, NULL);
+			 NULL, irl7654_mask_registers, NULL, NULL);
 
 static DECLARE_INTC_DESC(intc_irl3210_desc, "sh7780-irl3210", irl_vectors,
-			 NULL, NULL, irl3210_mask_registers, NULL, NULL);
+			 NULL, irl3210_mask_registers, NULL, NULL);
 
 #define INTC_ICR0	0xffd00000
 #define INTC_INTMSK0	0xffd00044
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
index 39b215d6cee5..74b60e96cdf4 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
@@ -178,15 +178,6 @@ static struct intc_group groups[] __initdata = {
 	INTC_GROUP(GPIO, GPIOI0, GPIOI1, GPIOI2, GPIOI3),
 };
 
-static struct intc_prio priorities[] __initdata = {
-	INTC_PRIO(SCIF0, 3),
-	INTC_PRIO(SCIF1, 3),
-	INTC_PRIO(SCIF2, 3),
-	INTC_PRIO(SCIF3, 3),
-	INTC_PRIO(SCIF4, 3),
-	INTC_PRIO(SCIF5, 3),
-};
-
 static struct intc_mask_reg mask_registers[] __initdata = {
 	{ 0xffd00044, 0xffd00064, 32, /* INTMSK0 / INTMSKCLR0 */
 	  { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
@@ -227,7 +218,7 @@ static struct intc_prio_reg prio_registers[] __initdata = {
 	{ 0xffd40024, 0, 32, 8, /* INT2PRI9 */ { DU, GDTA, } },
 };
 
-static DECLARE_INTC_DESC(intc_desc, "sh7785", vectors, groups, priorities,
+static DECLARE_INTC_DESC(intc_desc, "sh7785", vectors, groups,
 			 mask_registers, prio_registers, NULL);
 
 /* Support for external interrupt pins in IRQ mode */
@@ -248,11 +239,11 @@ static struct intc_sense_reg sense_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_irq0123, "sh7785-irq0123", vectors_irq0123,
-			 NULL, NULL, mask_registers, prio_registers,
+			 NULL, mask_registers, prio_registers,
 			 sense_registers);
 
 static DECLARE_INTC_DESC(intc_desc_irq4567, "sh7785-irq4567", vectors_irq4567,
-			 NULL, NULL, mask_registers, prio_registers,
+			 NULL, mask_registers, prio_registers,
 			 sense_registers);
 
 /* External interrupt pins in IRL mode */
@@ -280,10 +271,10 @@ static struct intc_vect vectors_irl4567[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_irl0123, "sh7785-irl0123", vectors_irl0123,
-			 NULL, NULL, mask_registers, NULL, NULL);
+			 NULL, mask_registers, NULL, NULL);
 
 static DECLARE_INTC_DESC(intc_desc_irl4567, "sh7785-irl4567", vectors_irl4567,
-			 NULL, NULL, mask_registers, NULL, NULL);
+			 NULL, mask_registers, NULL, NULL);
 
 #define INTC_ICR0	0xffd00000
 #define INTC_INTMSK0	0xffd00044
diff --git a/arch/sh/kernel/cpu/sh4a/setup-shx3.c b/arch/sh/kernel/cpu/sh4a/setup-shx3.c
index c6cdd7e3b049..4dc958b6b314 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-shx3.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-shx3.c
@@ -165,13 +165,6 @@ static struct intc_group groups[] __initdata = {
 	INTC_GROUP(DTU3, DTU3_TEND, DTU3_AE, DTU3_TMISS),
 };
 
-static struct intc_prio priorities[] __initdata = {
-	INTC_PRIO(SCIF0, 3),
-	INTC_PRIO(SCIF1, 3),
-	INTC_PRIO(SCIF2, 3),
-	INTC_PRIO(SCIF3, 3),
-};
-
 static struct intc_mask_reg mask_registers[] __initdata = {
 	{ 0xfe410030, 0xfe410050, 32, /* CnINTMSK0 / CnINTMSKCLR0 */
 	  { IRQ0, IRQ1, IRQ2, IRQ3 } },
@@ -218,7 +211,7 @@ static struct intc_prio_reg prio_registers[] __initdata = {
 	    INTICI3, INTICI2, INTICI1, INTICI0 }, INTC_SMP(4, 4) },
 };
 
-static DECLARE_INTC_DESC(intc_desc, "shx3", vectors, groups, priorities,
+static DECLARE_INTC_DESC(intc_desc, "shx3", vectors, groups,
 			 mask_registers, prio_registers, NULL);
 
 /* Support for external interrupt pins in IRQ mode */
@@ -232,8 +225,7 @@ static struct intc_sense_reg sense_registers[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_irq, "shx3-irq", vectors_irq, groups,
-			 priorities, mask_registers, prio_registers,
-			 sense_registers);
+			 mask_registers, prio_registers, sense_registers);
 
 /* External interrupt pins in IRL mode */
 static struct intc_vect vectors_irl[] __initdata = {
@@ -248,7 +240,7 @@ static struct intc_vect vectors_irl[] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc_irl, "shx3-irl", vectors_irl, groups,
-			 priorities, mask_registers, prio_registers, NULL);
+			 mask_registers, prio_registers, NULL);
 
 void __init plat_irq_setup_pins(int mode)
 {
diff --git a/include/asm-sh/hw_irq.h b/include/asm-sh/hw_irq.h
index cb0b6c9f7020..c958fdaa0095 100644
--- a/include/asm-sh/hw_irq.h
+++ b/include/asm-sh/hw_irq.h
@@ -33,13 +33,6 @@ struct intc_vect {
 #define INTC_VECT(enum_id, vect) { enum_id, vect }
 #define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))
 
-struct intc_prio {
-	intc_enum enum_id;
-	unsigned char priority;
-};
-
-#define INTC_PRIO(enum_id, prio) { enum_id, prio }
-
 struct intc_group {
 	intc_enum enum_id;
 	intc_enum enum_ids[32];
@@ -79,8 +72,6 @@ struct intc_desc {
 	unsigned int nr_vectors;
 	struct intc_group *groups;
 	unsigned int nr_groups;
-	struct intc_prio *priorities;
-	unsigned int nr_priorities;
 	struct intc_mask_reg *mask_regs;
 	unsigned int nr_mask_regs;
 	struct intc_prio_reg *prio_regs;
@@ -92,10 +83,9 @@ struct intc_desc {
 
 #define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a)
 #define DECLARE_INTC_DESC(symbol, chipname, vectors, groups,		\
-	priorities, mask_regs, prio_regs, sense_regs)			\
+	mask_regs, prio_regs, sense_regs)				\
 struct intc_desc symbol __initdata = {					\
 	_INTC_ARRAY(vectors), _INTC_ARRAY(groups),			\
-	_INTC_ARRAY(priorities),					\
 	_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs),			\
 	_INTC_ARRAY(sense_regs),					\
 	chipname,							\
-- 
cgit v1.2.3-59-g8ed1b


From 4bb70b84bffee0bf1f60f17113e5baa814c2ce79 Mon Sep 17 00:00:00 2001
From: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Date: Fri, 11 Jan 2008 10:38:34 +0900
Subject: sh: Add OHCI and UDC platform devices for SH7720.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/cpu/sh3/setup-sh7720.c | 53 +++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

(limited to 'arch')

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7720.c b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
index c00471a89212..3855ea4c21c8 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7720.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
@@ -85,9 +85,62 @@ static struct platform_device sci_device = {
 	},
 };
 
+static struct resource usb_ohci_resources[] = {
+	[0] = {
+		.start	= 0xA4428000,
+		.end	= 0xA44280FF,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= 67,
+		.end	= 67,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static u64 usb_ohci_dma_mask = 0xffffffffUL;
+static struct platform_device usb_ohci_device = {
+	.name		= "sh_ohci",
+	.id		= -1,
+	.dev = {
+		.dma_mask		= &usb_ohci_dma_mask,
+		.coherent_dma_mask	= 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(usb_ohci_resources),
+	.resource	= usb_ohci_resources,
+};
+
+static struct resource usbf_resources[] = {
+	[0] = {
+		.name	= "sh_udc",
+		.start	= 0xA4420000,
+		.end	= 0xA44200FF,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "sh_udc",
+		.start	= 65,
+		.end	= 65,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device usbf_device = {
+	.name		= "sh_udc",
+	.id		= -1,
+	.dev = {
+		.dma_mask		= NULL,
+		.coherent_dma_mask	= 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(usbf_resources),
+	.resource	= usbf_resources,
+};
+
 static struct platform_device *sh7720_devices[] __initdata = {
 	&rtc_device,
 	&sci_device,
+	&usb_ohci_device,
+	&usbf_device,
 };
 
 static int __init sh7720_devices_setup(void)
-- 
cgit v1.2.3-59-g8ed1b


From cbd10dfb82d6b0b169a42fe52223259f0b1a2cab Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@igel.co.jp>
Date: Tue, 15 Jan 2008 12:44:44 +0900
Subject: sh: r2d - add lcd planel timings to sm501 platform data

This patch adds timings to drive a Sharp LQ104V1DG21 lcd panel that can
be hooked up to R2D-1 or R2D-PLUS. The sm501fb driver should leave the
pins FPEN and VBIASEN alone, and this patch instructs the driver to do
so by not setting flags flags for these pins.

This patch works best together with the patch posted to the
linux-fbdev-devel list "sm501fb: control panel pin usage with platform
data flags", but this patch can be merged independently.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/renesas/rts7751r2d/setup.c | 45 +++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

(limited to 'arch')

diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c
index 8125d20fdbd8..dc143c10cd18 100644
--- a/arch/sh/boards/renesas/rts7751r2d/setup.c
+++ b/arch/sh/boards/renesas/rts7751r2d/setup.c
@@ -14,6 +14,7 @@
 #include <linux/serial_8250.h>
 #include <linux/sm501.h>
 #include <linux/pm.h>
+#include <linux/fb.h>
 #include <asm/machvec.h>
 #include <asm/rts7751r2d.h>
 #include <asm/voyagergx.h>
@@ -129,9 +130,53 @@ static struct resource sm501_resources[] = {
 	},
 };
 
+static struct fb_videomode sm501_default_mode = {
+	.pixclock	= 35714,
+	.xres		= 640,
+	.yres		= 480,
+	.left_margin	= 105,
+	.right_margin	= 50,
+	.upper_margin	= 35,
+	.lower_margin	= 0,
+	.hsync_len	= 96,
+	.vsync_len	= 2,
+	.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct sm501_platdata_fbsub sm501_pdata_fbsub_pnl = {
+	.def_bpp	= 16,
+	.def_mode	= &sm501_default_mode,
+	.flags		= SM501FB_FLAG_USE_INIT_MODE |
+			  SM501FB_FLAG_USE_HWCURSOR |
+			  SM501FB_FLAG_USE_HWACCEL |
+			  SM501FB_FLAG_DISABLE_AT_EXIT,
+};
+
+static struct sm501_platdata_fbsub sm501_pdata_fbsub_crt = {
+	.flags		= (SM501FB_FLAG_USE_INIT_MODE |
+			   SM501FB_FLAG_USE_HWCURSOR |
+			   SM501FB_FLAG_USE_HWACCEL |
+			   SM501FB_FLAG_DISABLE_AT_EXIT),
+
+};
+
+static struct sm501_platdata_fb sm501_fb_pdata = {
+	.fb_route	= SM501_FB_OWN,
+	.fb_crt		= &sm501_pdata_fbsub_crt,
+	.fb_pnl		= &sm501_pdata_fbsub_pnl,
+	.flags		= SM501_FBPD_SWAP_FB_ENDIAN,
+};
+
+static struct sm501_platdata sm501_platform_data = {
+	.fb		= &sm501_fb_pdata,
+};
+
 static struct platform_device sm501_device = {
 	.name		= "sm501",
 	.id		= -1,
+	.dev		= {
+		.platform_data	= &sm501_platform_data,
+	},
 	.num_resources	= ARRAY_SIZE(sm501_resources),
 	.resource	= sm501_resources,
 };
-- 
cgit v1.2.3-59-g8ed1b


From 29ec6778a49d30c47345afdfaf1d03acff3cf656 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@igel.co.jp>
Date: Tue, 15 Jan 2008 12:47:53 +0900
Subject: sh: remove voyagergx

This patch removes redundant irq handling code together with unused
consistent alloc code. R2D uart setup code is changed to use
sm501-regs.h and unused header files are removed.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Makefile                          |   1 -
 arch/sh/boards/renesas/rts7751r2d/irq.c   |   4 -
 arch/sh/boards/renesas/rts7751r2d/setup.c |  73 ++++---
 arch/sh/cchips/voyagergx/Makefile         |   9 -
 arch/sh/cchips/voyagergx/consistent.c     | 121 -----------
 arch/sh/cchips/voyagergx/irq.c            | 101 ---------
 arch/sh/cchips/voyagergx/setup.c          |  37 ----
 include/asm-sh/voyagergx.h                | 341 ------------------------------
 8 files changed, 39 insertions(+), 648 deletions(-)
 delete mode 100644 arch/sh/cchips/voyagergx/Makefile
 delete mode 100644 arch/sh/cchips/voyagergx/consistent.c
 delete mode 100644 arch/sh/cchips/voyagergx/irq.c
 delete mode 100644 arch/sh/cchips/voyagergx/setup.c
 delete mode 100644 include/asm-sh/voyagergx.h

(limited to 'arch')

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 292d8618248d..e04b19293652 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -138,7 +138,6 @@ endif
 
 # Companion chips
 core-$(CONFIG_HD6446X_SERIES)	+= arch/sh/cchips/hd6446x/
-core-$(CONFIG_MFD_SM501)	+= arch/sh/cchips/voyagergx/
 
 cpuincdir-$(CONFIG_CPU_SH2)	:= cpu-sh2
 cpuincdir-$(CONFIG_CPU_SH2A)	:= cpu-sh2a
diff --git a/arch/sh/boards/renesas/rts7751r2d/irq.c b/arch/sh/boards/renesas/rts7751r2d/irq.c
index 3fecd49e0d2a..8e49f6e51247 100644
--- a/arch/sh/boards/renesas/rts7751r2d/irq.c
+++ b/arch/sh/boards/renesas/rts7751r2d/irq.c
@@ -13,7 +13,6 @@
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
-#include <asm/voyagergx.h>
 #include <asm/rts7751r2d.h>
 
 #define R2D_NR_IRL 13
@@ -153,7 +152,4 @@ void __init init_rts7751r2d_IRQ(void)
 	}
 
 	register_intc_controller(d);
-#ifdef CONFIG_MFD_SM501
-	setup_voyagergx_irq();
-#endif
 }
diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c
index dc143c10cd18..8cb496617073 100644
--- a/arch/sh/boards/renesas/rts7751r2d/setup.c
+++ b/arch/sh/boards/renesas/rts7751r2d/setup.c
@@ -13,36 +13,13 @@
 #include <linux/pata_platform.h>
 #include <linux/serial_8250.h>
 #include <linux/sm501.h>
+#include <linux/sm501-regs.h>
 #include <linux/pm.h>
 #include <linux/fb.h>
 #include <asm/machvec.h>
 #include <asm/rts7751r2d.h>
-#include <asm/voyagergx.h>
 #include <asm/io.h>
 
-static void __init voyagergx_serial_init(void)
-{
-	unsigned long val;
-
-	/*
-	 * GPIO Control
-	 */
-	val = readl((void __iomem *)GPIO_MUX_HIGH);
-	val |= 0x00001fe0;
-	writel(val, (void __iomem *)GPIO_MUX_HIGH);
-
-	/*
-	 * Power Mode Gate
-	 */
-	val = readl((void __iomem *)POWER_MODE0_GATE);
-	val |= (POWER_MODE0_GATE_U0 | POWER_MODE0_GATE_U1);
-	writel(val, (void __iomem *)POWER_MODE0_GATE);
-
-	val = readl((void __iomem *)POWER_MODE1_GATE);
-	val |= (POWER_MODE1_GATE_U0 | POWER_MODE1_GATE_U1);
-	writel(val, (void __iomem *)POWER_MODE1_GATE);
-}
-
 static struct resource cf_ide_resources[] = {
 	[0] = {
 		.start	= PA_AREA5_IO + 0x1000,
@@ -94,11 +71,11 @@ static struct platform_device heartbeat_device = {
 #ifdef CONFIG_MFD_SM501
 static struct plat_serial8250_port uart_platform_data[] = {
 	{
-		.membase	= (void __iomem *)VOYAGER_UART_BASE,
-		.mapbase	= VOYAGER_UART_BASE,
+		.membase	= (void __iomem *)0xb3e30000,
+		.mapbase	= 0xb3e30000,
 		.iotype		= UPIO_MEM,
-		.irq		= IRQ_SM501_U0,
-		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+		.irq		= IRQ_VOYAGER,
+		.flags		= UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ,
 		.regshift	= 2,
 		.uartclk	= (9600 * 16),
 	},
@@ -125,7 +102,7 @@ static struct resource sm501_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[2]	= {
-		.start	= IRQ_SM501_CV,
+		.start	= IRQ_VOYAGER,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -167,7 +144,15 @@ static struct sm501_platdata_fb sm501_fb_pdata = {
 	.flags		= SM501_FBPD_SWAP_FB_ENDIAN,
 };
 
+static struct sm501_initdata sm501_initdata = {
+	.gpio_high	= {
+		.set	= 0x00001fe0,
+		.mask	= 0x0,
+	},
+};
+
 static struct sm501_platdata sm501_platform_data = {
+	.init		= &sm501_initdata,
 	.fb		= &sm501_fb_pdata,
 };
 
@@ -237,6 +222,7 @@ u8 rts7751r2d_readb(void __iomem *addr)
  */
 static void __init rts7751r2d_setup(char **cmdline_p)
 {
+	void __iomem *sm501_reg;
 	u16 ver = ctrl_inw(PA_VERREG);
 
 	printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
@@ -247,7 +233,30 @@ static void __init rts7751r2d_setup(char **cmdline_p)
 	ctrl_outw(0x0000, PA_OUTPORT);
 	pm_power_off = rts7751r2d_power_off;
 
-	voyagergx_serial_init();
+	/* sm501 dram configuration:
+	 * ColSizeX = 11 - External Memory Column Size: 256 words.
+	 * APX = 1 - External Memory Active to Pre-Charge Delay: 7 clocks.
+	 * RstX = 1 - External Memory Reset: Normal.
+	 * Rfsh = 1 - Local Memory Refresh to Command Delay: 12 clocks.
+	 * BwC =  1 - Local Memory Block Write Cycle Time: 2 clocks.
+	 * BwP =  1 - Local Memory Block Write to Pre-Charge Delay: 1 clock.
+	 * AP = 1 - Internal Memory Active to Pre-Charge Delay: 7 clocks.
+	 * Rst = 1 - Internal Memory Reset: Normal.
+	 * RA = 1 - Internal Memory Remain in Active State: Do not remain.
+	 */
+
+	sm501_reg = (void __iomem *)0xb3e00000 + SM501_DRAM_CONTROL;
+	writel(readl(sm501_reg) | 0x00f107c0, sm501_reg);
+
+	/*
+	 * Power Mode Gate - Enable UART0
+	 */
+
+	sm501_reg = (void __iomem *)0xb3e00000 + SM501_POWER_MODE_0_GATE;
+	writel(readl(sm501_reg) | (1 << SM501_GATE_UART0), sm501_reg);
+
+	sm501_reg = (void __iomem *)0xb3e00000 + SM501_POWER_MODE_1_GATE;
+	writel(readl(sm501_reg) | (1 << SM501_GATE_UART0), sm501_reg);
 }
 
 /*
@@ -260,8 +269,4 @@ static struct sh_machine_vector mv_rts7751r2d __initmv = {
 	.mv_irq_demux		= rts7751r2d_irq_demux,
 	.mv_writeb		= rts7751r2d_writeb,
 	.mv_readb		= rts7751r2d_readb,
-#if defined(CONFIG_MFD_SM501) && defined(CONFIG_USB_OHCI_HCD)
-	.mv_consistent_alloc	= voyagergx_consistent_alloc,
-	.mv_consistent_free	= voyagergx_consistent_free,
-#endif
 };
diff --git a/arch/sh/cchips/voyagergx/Makefile b/arch/sh/cchips/voyagergx/Makefile
deleted file mode 100644
index f73963cb3744..000000000000
--- a/arch/sh/cchips/voyagergx/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# Makefile for VoyagerGX
-#
-
-obj-y	:= irq.o setup.o
-
-obj-$(CONFIG_USB_OHCI_HCD)	+= consistent.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/sh/cchips/voyagergx/consistent.c b/arch/sh/cchips/voyagergx/consistent.c
deleted file mode 100644
index 07e8b9c5a531..000000000000
--- a/arch/sh/cchips/voyagergx/consistent.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * arch/sh/cchips/voyagergx/consistent.c
- *
- * Copyright (C) 2004  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/mm.h>
-#include <linux/dma-mapping.h>
-#include <linux/slab.h>
-#include <linux/list.h>
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <asm/io.h>
-
-
-struct voya_alloc_entry {
-	struct list_head list;
-	unsigned long ofs;
-	unsigned long len;
-};
-
-static DEFINE_SPINLOCK(voya_list_lock);
-static LIST_HEAD(voya_alloc_list);
-
-#define OHCI_SRAM_START	0xb0000000
-#define OHCI_HCCA_SIZE	0x100
-#define OHCI_SRAM_SIZE	0x10000
-
-#define VOYAGER_OHCI_NAME	"voyager-ohci"
-
-void *voyagergx_consistent_alloc(struct device *dev, size_t size,
-				 dma_addr_t *handle, gfp_t flag)
-{
-	struct list_head *list = &voya_alloc_list;
-	struct voya_alloc_entry *entry;
-	unsigned long start, end;
-	unsigned long flags;
-
-	/*
-	 * The SM501 contains an integrated 8051 with its own SRAM.
-	 * Devices within the cchip can all hook into the 8051 SRAM.
-	 * We presently use this for the OHCI.
-	 *
-	 * Everything else goes through consistent_alloc().
-	 */
-	if (!dev || strcmp(dev->driver->name, VOYAGER_OHCI_NAME))
-		return NULL;
-
-	start = OHCI_SRAM_START + OHCI_HCCA_SIZE;
-
-	entry = kmalloc(sizeof(struct voya_alloc_entry), GFP_ATOMIC);
-	if (!entry)
-		return ERR_PTR(-ENOMEM);
-
-	entry->len = (size + 15) & ~15;
-
-	/*
-	 * The basis for this allocator is dwmw2's malloc.. the
-	 * Matrox allocator :-)
-	 */
-	spin_lock_irqsave(&voya_list_lock, flags);
-	list_for_each(list, &voya_alloc_list) {
-		struct voya_alloc_entry *p;
-
-		p = list_entry(list, struct voya_alloc_entry, list);
-
-		if (p->ofs - start >= size)
-			goto out;
-
-		start = p->ofs + p->len;
-	}
-
-	end  = start + (OHCI_SRAM_SIZE  - OHCI_HCCA_SIZE);
-	list = &voya_alloc_list;
-
-	if (end - start >= size) {
-out:
-		entry->ofs = start;
-		list_add_tail(&entry->list, list);
-		spin_unlock_irqrestore(&voya_list_lock, flags);
-
-		*handle = start;
-		return (void *)start;
-	}
-
-	kfree(entry);
-	spin_unlock_irqrestore(&voya_list_lock, flags);
-
-	return ERR_PTR(-EINVAL);
-}
-
-int voyagergx_consistent_free(struct device *dev, size_t size,
-			      void *vaddr, dma_addr_t handle)
-{
-	struct voya_alloc_entry *entry;
-	unsigned long flags;
-
-	if (!dev || strcmp(dev->driver->name, VOYAGER_OHCI_NAME))
-		return -EINVAL;
-
-	spin_lock_irqsave(&voya_list_lock, flags);
-	list_for_each_entry(entry, &voya_alloc_list, list) {
-		if (entry->ofs != handle)
-			continue;
-
-		list_del(&entry->list);
-		kfree(entry);
-
-		break;
-	}
-	spin_unlock_irqrestore(&voya_list_lock, flags);
-
-	return 0;
-}
-
-EXPORT_SYMBOL(voyagergx_consistent_alloc);
-EXPORT_SYMBOL(voyagergx_consistent_free);
diff --git a/arch/sh/cchips/voyagergx/irq.c b/arch/sh/cchips/voyagergx/irq.c
deleted file mode 100644
index e7e78c612fad..000000000000
--- a/arch/sh/cchips/voyagergx/irq.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/* -------------------------------------------------------------------- */
-/* setup_voyagergx.c:                                                     */
-/* -------------------------------------------------------------------- */
-/*  This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    Copyright 2003 (c) Lineo uSolutions,Inc.
-*/
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <asm/voyagergx.h>
-#include <asm/rts7751r2d.h>
-
-enum {
-	UNUSED = 0,
-
-	/* voyager specific interrupt sources */
-	UP, G54, G53, G52, G51, G50, G49, G48,
-	I2C, PW, DMA, PCI, I2S, AC, US,
-	U1, U0, CV, MC, S1, S0,
-	UH, TWOD, ZD, PV, CI,
-};
-
-static struct intc_vect vectors[] __initdata = {
-	INTC_IRQ(UP, IRQ_SM501_UP), INTC_IRQ(G54, IRQ_SM501_G54),
-	INTC_IRQ(G53, IRQ_SM501_G53), INTC_IRQ(G52, IRQ_SM501_G52),
-	INTC_IRQ(G51, IRQ_SM501_G51), INTC_IRQ(G50, IRQ_SM501_G50),
-	INTC_IRQ(G49, IRQ_SM501_G49), INTC_IRQ(G48, IRQ_SM501_G48),
-	INTC_IRQ(I2C, IRQ_SM501_I2C), INTC_IRQ(PW, IRQ_SM501_PW),
-	INTC_IRQ(DMA, IRQ_SM501_DMA), INTC_IRQ(PCI, IRQ_SM501_PCI),
-	INTC_IRQ(I2S, IRQ_SM501_I2S), INTC_IRQ(AC, IRQ_SM501_AC),
-	INTC_IRQ(US, IRQ_SM501_US), INTC_IRQ(U1, IRQ_SM501_U1),
-	INTC_IRQ(U0, IRQ_SM501_U0), INTC_IRQ(CV, IRQ_SM501_CV),
-	INTC_IRQ(MC, IRQ_SM501_MC), INTC_IRQ(S1, IRQ_SM501_S1),
-	INTC_IRQ(S0, IRQ_SM501_S0), INTC_IRQ(UH, IRQ_SM501_UH),
-	INTC_IRQ(TWOD, IRQ_SM501_2D), INTC_IRQ(ZD, IRQ_SM501_ZD),
-	INTC_IRQ(PV, IRQ_SM501_PV), INTC_IRQ(CI, IRQ_SM501_CI),
-};
-
-static struct intc_mask_reg mask_registers[] __initdata = {
-	{ VOYAGER_INT_MASK, 0, 32, /* "Interrupt Mask", MMIO_base + 0x30 */
-	  { UP, G54, G53, G52, G51, G50, G49, G48,
-	    I2C, PW, 0, DMA, PCI, I2S, AC, US,
-	    0, 0, U1, U0, CV, MC, S1, S0,
-	    0, UH, 0, 0, TWOD, ZD, PV, CI } },
-};
-
-static DECLARE_INTC_DESC(intc_desc, "voyagergx", vectors,
-			 NULL, mask_registers, NULL, NULL);
-
-static unsigned int voyagergx_stat2irq[32] = {
-	IRQ_SM501_CI, IRQ_SM501_PV, IRQ_SM501_ZD, IRQ_SM501_2D,
-	0, 0, IRQ_SM501_UH, 0,
-	IRQ_SM501_S0, IRQ_SM501_S1, IRQ_SM501_MC, IRQ_SM501_CV,
-	IRQ_SM501_U0, IRQ_SM501_U1, 0, 0,
-	IRQ_SM501_US, IRQ_SM501_AC, IRQ_SM501_I2S, IRQ_SM501_PCI,
-	IRQ_SM501_DMA, 0, IRQ_SM501_PW, IRQ_SM501_I2C,
-	IRQ_SM501_G48, IRQ_SM501_G49, IRQ_SM501_G50, IRQ_SM501_G51,
-	IRQ_SM501_G52, IRQ_SM501_G53, IRQ_SM501_G54, IRQ_SM501_UP
-};
-
-static void voyagergx_irq_demux(unsigned int irq, struct irq_desc *desc)
-{
-	unsigned long intv = ctrl_inl(INT_STATUS);
-	struct irq_desc *ext_desc;
-	unsigned int ext_irq;
-	unsigned int k = 0;
-
-	while (intv) {
-		ext_irq = voyagergx_stat2irq[k];
-		if (ext_irq && (intv & 1)) {
-			ext_desc = irq_desc + ext_irq;
-			handle_level_irq(ext_irq, ext_desc);
-		}
-		intv >>= 1;
-		k++;
-	}
-}
-
-void __init setup_voyagergx_irq(void)
-{
-	printk(KERN_INFO "VoyagerGX on irq %d (mapped into %d to %d)\n",
-	       IRQ_VOYAGER,
-	       VOYAGER_IRQ_BASE,
-	       VOYAGER_IRQ_BASE + VOYAGER_IRQ_NUM - 1);
-
-	register_intc_controller(&intc_desc);
-	set_irq_chained_handler(IRQ_VOYAGER, voyagergx_irq_demux);
-}
diff --git a/arch/sh/cchips/voyagergx/setup.c b/arch/sh/cchips/voyagergx/setup.c
deleted file mode 100644
index 33f03027c193..000000000000
--- a/arch/sh/cchips/voyagergx/setup.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * arch/sh/cchips/voyagergx/setup.c
- *
- * Setup routines for VoyagerGX cchip.
- *
- * Copyright (C) 2003 Lineo uSolutions, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-#include <linux/init.h>
-#include <linux/module.h>
-#include <asm/io.h>
-#include <asm/voyagergx.h>
-
-static int __init setup_voyagergx(void)
-{
-	unsigned long val;
-
-	val = readl((void __iomem *)DRAM_CTRL);
-	val |= (DRAM_CTRL_CPU_COLUMN_SIZE_256	|
-		DRAM_CTRL_CPU_ACTIVE_PRECHARGE	|
-		DRAM_CTRL_CPU_RESET		|
-		DRAM_CTRL_REFRESH_COMMAND	|
-		DRAM_CTRL_BLOCK_WRITE_TIME	|
-		DRAM_CTRL_BLOCK_WRITE_PRECHARGE	|
-		DRAM_CTRL_ACTIVE_PRECHARGE	|
-		DRAM_CTRL_RESET			|
-		DRAM_CTRL_REMAIN_ACTIVE);
-	writel(val, (void __iomem *)DRAM_CTRL);
-
-	return 0;
-}
-
-module_init(setup_voyagergx);
diff --git a/include/asm-sh/voyagergx.h b/include/asm-sh/voyagergx.h
deleted file mode 100644
index 45b4547c74ac..000000000000
--- a/include/asm-sh/voyagergx.h
+++ /dev/null
@@ -1,341 +0,0 @@
-/* -------------------------------------------------------------------- */
-/* voyagergx.h	                                                      */
-/* -------------------------------------------------------------------- */
-/*  This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    Copyright 2003 (c) Lineo uSolutions,Inc.
-*/
-/* -------------------------------------------------------------------- */
-
-#ifndef _VOYAGER_GX_REG_H
-#define _VOYAGER_GX_REG_H
-
-#define VOYAGER_BASE			0xb3e00000
-#define VOYAGER_USBH_BASE		(0x40000 + VOYAGER_BASE)
-#define VOYAGER_UART_BASE		(0x30000 + VOYAGER_BASE)
-#define	VOYAGER_AC97_BASE		(0xa0000 + VOYAGER_BASE)
-
-#define VOYAGER_IRQ_NUM			26
-#define VOYAGER_IRQ_BASE		200
-
-#define IRQ_SM501_UP			(VOYAGER_IRQ_BASE + 0)
-#define IRQ_SM501_G54			(VOYAGER_IRQ_BASE + 1)
-#define IRQ_SM501_G53			(VOYAGER_IRQ_BASE + 2)
-#define IRQ_SM501_G52			(VOYAGER_IRQ_BASE + 3)
-#define IRQ_SM501_G51			(VOYAGER_IRQ_BASE + 4)
-#define IRQ_SM501_G50			(VOYAGER_IRQ_BASE + 5)
-#define IRQ_SM501_G49			(VOYAGER_IRQ_BASE + 6)
-#define IRQ_SM501_G48			(VOYAGER_IRQ_BASE + 7)
-#define IRQ_SM501_I2C			(VOYAGER_IRQ_BASE + 8)
-#define IRQ_SM501_PW			(VOYAGER_IRQ_BASE + 9)
-#define IRQ_SM501_DMA			(VOYAGER_IRQ_BASE + 10)
-#define IRQ_SM501_PCI			(VOYAGER_IRQ_BASE + 11)
-#define IRQ_SM501_I2S			(VOYAGER_IRQ_BASE + 12)
-#define IRQ_SM501_AC			(VOYAGER_IRQ_BASE + 13)
-#define IRQ_SM501_US			(VOYAGER_IRQ_BASE + 14)
-#define IRQ_SM501_U1			(VOYAGER_IRQ_BASE + 15)
-#define IRQ_SM501_U0			(VOYAGER_IRQ_BASE + 16)
-#define IRQ_SM501_CV			(VOYAGER_IRQ_BASE + 17)
-#define IRQ_SM501_MC			(VOYAGER_IRQ_BASE + 18)
-#define IRQ_SM501_S1			(VOYAGER_IRQ_BASE + 19)
-#define IRQ_SM501_S0			(VOYAGER_IRQ_BASE + 20)
-#define IRQ_SM501_UH			(VOYAGER_IRQ_BASE + 21)
-#define IRQ_SM501_2D			(VOYAGER_IRQ_BASE + 22)
-#define IRQ_SM501_ZD			(VOYAGER_IRQ_BASE + 23)
-#define IRQ_SM501_PV			(VOYAGER_IRQ_BASE + 24)
-#define IRQ_SM501_CI			(VOYAGER_IRQ_BASE + 25)
-
-/* ----- MISC controle  register ------------------------------ */
-#define MISC_CTRL			(0x000004 + VOYAGER_BASE)
-#define MISC_CTRL_USBCLK_48		(3 << 28)
-#define MISC_CTRL_USBCLK_96		(2 << 28)
-#define MISC_CTRL_USBCLK_CRYSTAL	(1 << 28)
-
-/* ----- GPIO[31:0] register --------------------------------- */
-#define GPIO_MUX_LOW			(0x000008 + VOYAGER_BASE)
-#define GPIO_MUX_LOW_AC97		0x1F000000
-#define GPIO_MUX_LOW_8051		0x0000ffff
-#define GPIO_MUX_LOW_PWM		(1 << 29)
-
-/* ----- GPIO[63:32] register --------------------------------- */
-#define GPIO_MUX_HIGH			(0x00000C + VOYAGER_BASE)
-
-/* ----- DRAM controle  register ------------------------------- */
-#define DRAM_CTRL			(0x000010 + VOYAGER_BASE)
-#define DRAM_CTRL_EMBEDDED		(1 << 31)
-#define DRAM_CTRL_CPU_BURST_1		(0 << 28)
-#define DRAM_CTRL_CPU_BURST_2		(1 << 28)
-#define DRAM_CTRL_CPU_BURST_4		(2 << 28)
-#define DRAM_CTRL_CPU_BURST_8		(3 << 28)
-#define DRAM_CTRL_CPU_CAS_LATENCY	(1 << 27)
-#define DRAM_CTRL_CPU_SIZE_2		(0 << 24)
-#define DRAM_CTRL_CPU_SIZE_4		(1 << 24)
-#define DRAM_CTRL_CPU_SIZE_64		(4 << 24)
-#define DRAM_CTRL_CPU_SIZE_32		(5 << 24)
-#define DRAM_CTRL_CPU_SIZE_16		(6 << 24)
-#define DRAM_CTRL_CPU_SIZE_8		(7 << 24)
-#define DRAM_CTRL_CPU_COLUMN_SIZE_1024	(0 << 22)
-#define DRAM_CTRL_CPU_COLUMN_SIZE_512	(2 << 22)
-#define DRAM_CTRL_CPU_COLUMN_SIZE_256	(3 << 22)
-#define DRAM_CTRL_CPU_ACTIVE_PRECHARGE	(1 << 21)
-#define DRAM_CTRL_CPU_RESET		(1 << 20)
-#define DRAM_CTRL_CPU_BANKS		(1 << 19)
-#define DRAM_CTRL_CPU_WRITE_PRECHARGE	(1 << 18)
-#define DRAM_CTRL_BLOCK_WRITE		(1 << 17)
-#define DRAM_CTRL_REFRESH_COMMAND	(1 << 16)
-#define DRAM_CTRL_SIZE_4		(0 << 13)
-#define DRAM_CTRL_SIZE_8		(1 << 13)
-#define DRAM_CTRL_SIZE_16		(2 << 13)
-#define DRAM_CTRL_SIZE_32		(3 << 13)
-#define DRAM_CTRL_SIZE_64		(4 << 13)
-#define DRAM_CTRL_SIZE_2		(5 << 13)
-#define DRAM_CTRL_COLUMN_SIZE_256	(0 << 11)
-#define DRAM_CTRL_COLUMN_SIZE_512	(2 << 11)
-#define DRAM_CTRL_COLUMN_SIZE_1024	(3 << 11)
-#define DRAM_CTRL_BLOCK_WRITE_TIME	(1 << 10)
-#define DRAM_CTRL_BLOCK_WRITE_PRECHARGE	(1 << 9)
-#define DRAM_CTRL_ACTIVE_PRECHARGE	(1 << 8)
-#define DRAM_CTRL_RESET			(1 << 7)
-#define DRAM_CTRL_REMAIN_ACTIVE		(1 << 6)
-#define DRAM_CTRL_BANKS			(1 << 1)
-#define DRAM_CTRL_WRITE_PRECHARGE	(1 << 0)
-
-/* ----- Arvitration control register -------------------------- */
-#define ARBITRATION_CTRL		(0x000014 + VOYAGER_BASE)
-#define ARBITRATION_CTRL_CPUMEM		(1 << 29)
-#define ARBITRATION_CTRL_INTMEM		(1 << 28)
-#define ARBITRATION_CTRL_USB_OFF	(0 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_1	(1 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_2	(2 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_3	(3 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_4	(4 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_5	(5 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_6	(6 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_7	(7 << 24)
-#define ARBITRATION_CTRL_PANEL_OFF	(0 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_1	(1 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_2	(2 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_3	(3 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_4	(4 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_5	(5 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_6	(6 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_7	(7 << 20)
-#define ARBITRATION_CTRL_ZVPORT_OFF	(0 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_1	(1 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_2	(2 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_3	(3 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_4	(4 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_5	(5 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_6	(6 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_7	(7 << 16)
-#define ARBITRATION_CTRL_CMD_INTPR_OFF	(0 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_1	(1 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_2	(2 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_3	(3 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_4	(4 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_5	(5 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_6	(6 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_7	(7 << 12)
-#define ARBITRATION_CTRL_DMA_OFF	(0 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_1	(1 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_2	(2 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_3	(3 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_4	(4 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_5	(5 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_6	(6 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_7	(7 << 8)
-#define ARBITRATION_CTRL_VIDEO_OFF	(0 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_1	(1 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_2	(2 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_3	(3 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_4	(4 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_5	(5 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_6	(6 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_7	(7 << 4)
-#define ARBITRATION_CTRL_CRT_OFF	(0 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_1	(1 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_2	(2 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_3	(3 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_4	(4 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_5	(5 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_6	(6 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_7	(7 << 0)
-
-/* ----- Command list status register -------------------------- */
-#define CMD_INTPR_STATUS		(0x000024 + VOYAGER_BASE)
-
-/* ----- Interrupt status register ----------------------------- */
-#define INT_STATUS			(0x00002c + VOYAGER_BASE)
-#define INT_STATUS_UH			(1 << 6)
-#define INT_STATUS_MC			(1 << 10)
-#define INT_STATUS_U0			(1 << 12)
-#define INT_STATUS_U1			(1 << 13)
-#define	INT_STATUS_AC			(1 << 17)
-
-/* ----- Interrupt mask register ------------------------------ */
-#define VOYAGER_INT_MASK		(0x000030 + VOYAGER_BASE)
-#define VOYAGER_INT_MASK_AC		(1 << 17)
-
-/* ----- Current Gate register ---------------------------------*/
-#define CURRENT_GATE			(0x000038 + VOYAGER_BASE)
-
-/* ----- Power mode 0 gate register --------------------------- */
-#define POWER_MODE0_GATE		(0x000040 + VOYAGER_BASE)
-#define POWER_MODE0_GATE_G		(1 << 6)
-#define POWER_MODE0_GATE_U0		(1 << 7)
-#define POWER_MODE0_GATE_U1		(1 << 8)
-#define POWER_MODE0_GATE_UH		(1 << 11)
-#define	POWER_MODE0_GATE_AC		(1 << 18)
-
-/* ----- Power mode 1 gate register --------------------------- */
-#define POWER_MODE1_GATE		(0x000048 + VOYAGER_BASE)
-#define POWER_MODE1_GATE_G		(1 << 6)
-#define POWER_MODE1_GATE_U0		(1 << 7)
-#define POWER_MODE1_GATE_U1		(1 << 8)
-#define POWER_MODE1_GATE_UH		(1 << 11)
-#define	POWER_MODE1_GATE_AC		(1 << 18)
-
-/* ----- Power mode 0 clock register -------------------------- */
-#define POWER_MODE0_CLOCK		(0x000044 + VOYAGER_BASE)
-
-/* ----- Power mode 1 clock register -------------------------- */
-#define POWER_MODE1_CLOCK		(0x00004C + VOYAGER_BASE)
-
-/* ----- Power mode control register ------------------------- */
-#define POWER_MODE_CTRL			(0x000054 + VOYAGER_BASE)
-
-/* ----- Miscellaneous Timing register ------------------------ */
-#define SYSTEM_DRAM_CTRL		(0x000068 + VOYAGER_BASE)
-
-/* ----- PWM register ------------------------------------------*/
-#define PWM_0				(0x010020 + VOYAGER_BASE)
-#define PWM_0_HC(x)			(((x)&0x0fff)<<20)
-#define PWM_0_LC(x)			(((x)&0x0fff)<<8 )
-#define PWM_0_CLK_DEV(x)		(((x)&0x000f)<<4 )
-#define PWM_0_EN			(1<<0)
-
-/* ----- I2C register ----------------------------------------- */
-#define I2C_BYTECOUNT			(0x010040 + VOYAGER_BASE)
-#define I2C_CONTROL			(0x010041 + VOYAGER_BASE)
-#define I2C_STATUS			(0x010042 + VOYAGER_BASE)
-#define I2C_RESET			(0x010042 + VOYAGER_BASE)
-#define I2C_SADDRESS			(0x010043 + VOYAGER_BASE)
-#define I2C_DATA			(0x010044 + VOYAGER_BASE)
-
-/* ----- Controle register bits ----------------------------------------- */
-#define I2C_CONTROL_E			(1 << 0)
-#define I2C_CONTROL_MODE		(1 << 1)
-#define I2C_CONTROL_STATUS		(1 << 2)
-#define I2C_CONTROL_INT			(1 << 4)
-#define I2C_CONTROL_INTACK		(1 << 5)
-#define I2C_CONTROL_REPEAT		(1 << 6)
-
-/* ----- Status register bits ----------------------------------------- */
-#define I2C_STATUS_BUSY			(1 << 0)
-#define I2C_STATUS_ACK			(1 << 1)
-#define I2C_STATUS_ERROR		(1 << 2)
-#define I2C_STATUS_COMPLETE		(1 << 3)
-
-/* ----- Reset register  ---------------------------------------------- */
-#define I2C_RESET_ERROR			(1 << 2)
-
-/* ----- transmission frequencies ------------------------------------- */
-#define I2C_SADDRESS_SELECT		(1 << 0)
-
-/* ----- Display Controll register ----------------------------------------- */
-#define PANEL_DISPLAY_CTRL		(0x080000 + VOYAGER_BASE)
-#define PANEL_DISPLAY_CTRL_BIAS         (1<<26)
-#define PANEL_PAN_CTRL			(0x080004 + VOYAGER_BASE)
-#define PANEL_COLOR_KEY			(0x080008 + VOYAGER_BASE)
-#define PANEL_FB_ADDRESS		(0x08000C + VOYAGER_BASE)
-#define PANEL_FB_WIDTH			(0x080010 + VOYAGER_BASE)
-#define PANEL_WINDOW_WIDTH		(0x080014 + VOYAGER_BASE)
-#define PANEL_WINDOW_HEIGHT		(0x080018 + VOYAGER_BASE)
-#define PANEL_PLANE_TL			(0x08001C + VOYAGER_BASE)
-#define PANEL_PLANE_BR			(0x080020 + VOYAGER_BASE)
-#define PANEL_HORIZONTAL_TOTAL		(0x080024 + VOYAGER_BASE)
-#define PANEL_HORIZONTAL_SYNC		(0x080028 + VOYAGER_BASE)
-#define PANEL_VERTICAL_TOTAL		(0x08002C + VOYAGER_BASE)
-#define PANEL_VERTICAL_SYNC		(0x080030 + VOYAGER_BASE)
-#define PANEL_CURRENT_LINE		(0x080034 + VOYAGER_BASE)
-#define VIDEO_DISPLAY_CTRL		(0x080040 + VOYAGER_BASE)
-#define VIDEO_FB_0_ADDRESS		(0x080044 + VOYAGER_BASE)
-#define VIDEO_FB_WIDTH			(0x080048 + VOYAGER_BASE)
-#define VIDEO_FB_0_LAST_ADDRESS		(0x08004C + VOYAGER_BASE)
-#define VIDEO_PLANE_TL			(0x080050 + VOYAGER_BASE)
-#define VIDEO_PLANE_BR			(0x080054 + VOYAGER_BASE)
-#define VIDEO_SCALE			(0x080058 + VOYAGER_BASE)
-#define VIDEO_INITIAL_SCALE		(0x08005C + VOYAGER_BASE)
-#define VIDEO_YUV_CONSTANTS		(0x080060 + VOYAGER_BASE)
-#define VIDEO_FB_1_ADDRESS		(0x080064 + VOYAGER_BASE)
-#define VIDEO_FB_1_LAST_ADDRESS		(0x080068 + VOYAGER_BASE)
-#define VIDEO_ALPHA_DISPLAY_CTRL	(0x080080 + VOYAGER_BASE)
-#define VIDEO_ALPHA_FB_ADDRESS		(0x080084 + VOYAGER_BASE)
-#define VIDEO_ALPHA_FB_WIDTH		(0x080088 + VOYAGER_BASE)
-#define VIDEO_ALPHA_FB_LAST_ADDRESS	(0x08008C + VOYAGER_BASE)
-#define VIDEO_ALPHA_PLANE_TL		(0x080090 + VOYAGER_BASE)
-#define VIDEO_ALPHA_PLANE_BR		(0x080094 + VOYAGER_BASE)
-#define VIDEO_ALPHA_SCALE		(0x080098 + VOYAGER_BASE)
-#define VIDEO_ALPHA_INITIAL_SCALE	(0x08009C + VOYAGER_BASE)
-#define VIDEO_ALPHA_CHROMA_KEY		(0x0800A0 + VOYAGER_BASE)
-#define PANEL_HWC_ADDRESS		(0x0800F0 + VOYAGER_BASE)
-#define PANEL_HWC_LOCATION		(0x0800F4 + VOYAGER_BASE)
-#define PANEL_HWC_COLOR_12		(0x0800F8 + VOYAGER_BASE)
-#define PANEL_HWC_COLOR_3		(0x0800FC + VOYAGER_BASE)
-#define ALPHA_DISPLAY_CTRL		(0x080100 + VOYAGER_BASE)
-#define ALPHA_FB_ADDRESS		(0x080104 + VOYAGER_BASE)
-#define ALPHA_FB_WIDTH			(0x080108 + VOYAGER_BASE)
-#define ALPHA_PLANE_TL			(0x08010C + VOYAGER_BASE)
-#define ALPHA_PLANE_BR			(0x080110 + VOYAGER_BASE)
-#define ALPHA_CHROMA_KEY		(0x080114 + VOYAGER_BASE)
-#define CRT_DISPLAY_CTRL		(0x080200 + VOYAGER_BASE)
-#define CRT_FB_ADDRESS			(0x080204 + VOYAGER_BASE)
-#define CRT_FB_WIDTH			(0x080208 + VOYAGER_BASE)
-#define CRT_HORIZONTAL_TOTAL		(0x08020C + VOYAGER_BASE)
-#define CRT_HORIZONTAL_SYNC		(0x080210 + VOYAGER_BASE)
-#define CRT_VERTICAL_TOTAL		(0x080214 + VOYAGER_BASE)
-#define CRT_VERTICAL_SYNC		(0x080218 + VOYAGER_BASE)
-#define CRT_SIGNATURE_ANALYZER		(0x08021C + VOYAGER_BASE)
-#define CRT_CURRENT_LINE		(0x080220 + VOYAGER_BASE)
-#define CRT_MONITOR_DETECT		(0x080224 + VOYAGER_BASE)
-#define CRT_HWC_ADDRESS			(0x080230 + VOYAGER_BASE)
-#define CRT_HWC_LOCATION		(0x080234 + VOYAGER_BASE)
-#define CRT_HWC_COLOR_12		(0x080238 + VOYAGER_BASE)
-#define CRT_HWC_COLOR_3			(0x08023C + VOYAGER_BASE)
-#define CRT_PALETTE_RAM			(0x080400 + VOYAGER_BASE)
-#define PANEL_PALETTE_RAM		(0x080800 + VOYAGER_BASE)
-#define VIDEO_PALETTE_RAM		(0x080C00 + VOYAGER_BASE)
-
-/* ----- 8051 Controle register ----------------------------------------- */
-#define VOYAGER_8051_BASE		(0x000c0000 + VOYAGER_BASE)
-#define VOYAGER_8051_RESET		(0x000b0000 + VOYAGER_BASE)
-#define VOYAGER_8051_SELECT		(0x000b0004 + VOYAGER_BASE)
-#define VOYAGER_8051_CPU_INT		(0x000b000c + VOYAGER_BASE)
-
-/* ----- AC97 Controle register ----------------------------------------- */
-#define AC97_TX_SLOT0			(0x00000000 + VOYAGER_AC97_BASE)
-#define AC97_CONTROL_STATUS		(0x00000080 + VOYAGER_AC97_BASE)
-#define AC97C_READ			(1 << 19)
-#define AC97C_WD_BIT			(1 << 2)
-#define AC97C_INDEX_MASK		0x7f
-
-/* arch/sh/cchips/voyagergx/consistent.c */
-void *voyagergx_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t);
-int voyagergx_consistent_free(struct device *, size_t, void *, dma_addr_t);
-
-/* arch/sh/cchips/voyagergx/irq.c */
-void setup_voyagergx_irq(void);
-
-#endif /* _VOYAGER_GX_REG_H */
-- 
cgit v1.2.3-59-g8ed1b


From d1eea50b0c6c998b713d824024c25c5001a5a8a4 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@igel.co.jp>
Date: Tue, 15 Jan 2008 12:48:15 +0900
Subject: sh: r2d - enable sm501 usb host function

This patch tells the sm501 mfd driver to build platform data for the
sm501 usb host driver.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/renesas/rts7751r2d/setup.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c
index 8cb496617073..8528616feaa0 100644
--- a/arch/sh/boards/renesas/rts7751r2d/setup.c
+++ b/arch/sh/boards/renesas/rts7751r2d/setup.c
@@ -149,6 +149,7 @@ static struct sm501_initdata sm501_initdata = {
 		.set	= 0x00001fe0,
 		.mask	= 0x0,
 	},
+	.devices	= SM501_USE_USB_HOST,
 };
 
 static struct sm501_platdata sm501_platform_data = {
-- 
cgit v1.2.3-59-g8ed1b


From 03bbc0e6ba23700aea7fec801ac7e6c5a80f78f9 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 15 Jan 2008 16:55:55 +0900
Subject: sh: r7785rp: Hook up the rest of the HL7785 FPGA IRQ vectors.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/renesas/r7780rp/irq-r7785rp.c | 45 ++++++++++++++++++++--------
 include/asm-sh/r7780rp.h                     | 14 +++++++--
 2 files changed, 45 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c b/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c
index bbf18afc29a7..af5ec74b2b1e 100644
--- a/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c
+++ b/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c
@@ -2,7 +2,7 @@
  * Renesas Solutions Highlander R7785RP Support.
  *
  * Copyright (C) 2002  Atom Create Engineering Co., Ltd.
- * Copyright (C) 2006  Paul Mundt
+ * Copyright (C) 2006 - 2008  Paul Mundt
  * Copyright (C) 2007  Magnus Damm
  *
  * This file is subject to the terms and conditions of the GNU General Public
@@ -17,31 +17,52 @@
 enum {
 	UNUSED = 0,
 
-	/* board specific interrupt sources */
-	AX88796,          /* Ethernet controller */
-	CF,               /* Compact Flash */
+	/* FPGA specific interrupt sources */
+	CF,		/* Compact Flash */
+	SMBUS,		/* SMBUS */
+	TP,		/* Touch panel */
+	RTC,		/* RTC Alarm */
+	TH_ALERT,	/* Temperature sensor */
+	AX88796,	/* Ethernet controller */
+
+	/* external bus connector */
+	EXT0, EXT1, EXT2, EXT3, EXT4, EXT5, EXT6, EXT7,
 };
 
 static struct intc_vect vectors[] __initdata = {
 	INTC_IRQ(CF, IRQ_CF),
+	INTC_IRQ(SMBUS, IRQ_SMBUS),
+	INTC_IRQ(TP, IRQ_TP),
+	INTC_IRQ(RTC, IRQ_RTC),
+	INTC_IRQ(TH_ALERT, IRQ_TH_ALERT),
+
+	INTC_IRQ(EXT0, IRQ_EXT0), INTC_IRQ(EXT1, IRQ_EXT1),
+	INTC_IRQ(EXT2, IRQ_EXT2), INTC_IRQ(EXT3, IRQ_EXT3),
+
+	INTC_IRQ(EXT4, IRQ_EXT4), INTC_IRQ(EXT5, IRQ_EXT5),
+	INTC_IRQ(EXT6, IRQ_EXT6), INTC_IRQ(EXT7, IRQ_EXT7),
+
 	INTC_IRQ(AX88796, IRQ_AX88796),
 };
 
 static struct intc_mask_reg mask_registers[] __initdata = {
 	{ 0xa4000010, 0, 16, /* IRLMCR1 */
-	  { 0, 0, 0, 0, CF, AX88796, 0, 0,
-	    0, 0, 0, 0, 0, 0, 0, 0 } },
+	  { 0, 0, 0, 0, CF, AX88796, SMBUS, TP,
+	    RTC, 0, TH_ALERT, 0, 0, 0, 0, 0 } },
+	{ 0xa4000012, 0, 16, /* IRLMCR2 */
+	  { 0, 0, 0, 0, 0, 0, 0, 0,
+	    EXT7, EXT6, EXT5, EXT4, EXT3, EXT2, EXT1, EXT0 } },
 };
 
 static unsigned char irl2irq[HL_NR_IRL] __initdata = {
-	0, IRQ_CF, 0, 0,
-	0, 0, 0, 0,
-	0, 0, IRQ_AX88796, 0,
-	0, 0, 0,
+	0, IRQ_CF, IRQ_EXT4, IRQ_EXT5,
+	IRQ_EXT6, IRQ_EXT7, IRQ_SMBUS, IRQ_TP,
+	IRQ_RTC, IRQ_TH_ALERT, IRQ_AX88796, IRQ_EXT0,
+	IRQ_EXT1, IRQ_EXT2, IRQ_EXT3,
 };
 
 static DECLARE_INTC_DESC(intc_desc, "r7785rp", vectors,
-			 NULL, mask_registers, NULL, NULL);
+			 NULL, NULL, mask_registers, NULL, NULL);
 
 unsigned char * __init highlander_init_irq_r7785rp(void)
 {
@@ -58,7 +79,7 @@ unsigned char * __init highlander_init_irq_r7785rp(void)
 	ctrl_outw(0x7060, PA_IRLPRC);	/* FPGA IRLC */
 	ctrl_outw(0x0000, PA_IRLPRD);	/* FPGA IRLD */
 	ctrl_outw(0x4321, PA_IRLPRE);	/* FPGA IRLE */
-	ctrl_outw(0x0000, PA_IRLPRF);	/* FPGA IRLF */
+	ctrl_outw(0xdcba, PA_IRLPRF);	/* FPGA IRLF */
 
 	register_intc_controller(&intc_desc);
 	return irl2irq;
diff --git a/include/asm-sh/r7780rp.h b/include/asm-sh/r7780rp.h
index de37f933aa42..1c2d4d18fab2 100644
--- a/include/asm-sh/r7780rp.h
+++ b/include/asm-sh/r7780rp.h
@@ -195,8 +195,18 @@
 #ifndef IRQ_PSW
 #define IRQ_PSW			(HL_FPGA_IRQ_BASE + 2)
 #endif
-#define IRQ_EXT1		(HL_FPGA_IRQ_BASE + 3)
-#define IRQ_EXT4		(HL_FPGA_IRQ_BASE + 4)
+#define IRQ_EXT0		(HL_FPGA_IRQ_BASE + 3)
+#define IRQ_EXT1		(HL_FPGA_IRQ_BASE + 4)
+#define IRQ_EXT2		(HL_FPGA_IRQ_BASE + 5)
+#define IRQ_EXT3		(HL_FPGA_IRQ_BASE + 6)
+#define IRQ_EXT4		(HL_FPGA_IRQ_BASE + 7)
+#define IRQ_EXT5		(HL_FPGA_IRQ_BASE + 8)
+#define IRQ_EXT6		(HL_FPGA_IRQ_BASE + 9)
+#define IRQ_EXT7		(HL_FPGA_IRQ_BASE + 10)
+#define IRQ_SMBUS		(HL_FPGA_IRQ_BASE + 11)
+#define IRQ_TP			(HL_FPGA_IRQ_BASE + 12)
+#define IRQ_RTC			(HL_FPGA_IRQ_BASE + 13)
+#define IRQ_TH_ALERT		(HL_FPGA_IRQ_BASE + 14)
 
 void make_r7780rp_irq(unsigned int irq);
 
-- 
cgit v1.2.3-59-g8ed1b


From 427c727fd0637555a4bb6828c07bf36b9506ddde Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 15 Jan 2008 16:58:19 +0900
Subject: sh: r7785rp: Fix up DECLARE_INTC_DESC() arg mismatch.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/renesas/r7780rp/irq-r7785rp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c b/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c
index af5ec74b2b1e..bf7ec107fbc6 100644
--- a/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c
+++ b/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c
@@ -62,7 +62,7 @@ static unsigned char irl2irq[HL_NR_IRL] __initdata = {
 };
 
 static DECLARE_INTC_DESC(intc_desc, "r7785rp", vectors,
-			 NULL, NULL, mask_registers, NULL, NULL);
+			 NULL, mask_registers, NULL, NULL);
 
 unsigned char * __init highlander_init_irq_r7785rp(void)
 {
-- 
cgit v1.2.3-59-g8ed1b


From a5350a9686efa65cbd2ad4677bcb9372c7ad05c7 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sat, 19 Jan 2008 16:06:01 +0900
Subject: sh: Kill off dead HS771RVoIP board support.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig                             |   7 -
 arch/sh/Makefile                            |   1 -
 arch/sh/boards/renesas/hs7751rvoip/Kconfig  |  12 -
 arch/sh/boards/renesas/hs7751rvoip/Makefile |   8 -
 arch/sh/boards/renesas/hs7751rvoip/io.c     | 283 ---------
 arch/sh/boards/renesas/hs7751rvoip/irq.c    | 116 ----
 arch/sh/boards/renesas/hs7751rvoip/pci.c    | 149 -----
 arch/sh/boards/renesas/hs7751rvoip/setup.c  | 105 ----
 arch/sh/configs/hs7751rvoip_defconfig       | 908 ----------------------------
 arch/sh/drivers/pci/pci-auto.c              |   2 -
 arch/sh/tools/mach-types                    |   1 -
 include/asm-sh/hs7751rvoip.h                |  54 --
 12 files changed, 1646 deletions(-)
 delete mode 100644 arch/sh/boards/renesas/hs7751rvoip/Kconfig
 delete mode 100644 arch/sh/boards/renesas/hs7751rvoip/Makefile
 delete mode 100644 arch/sh/boards/renesas/hs7751rvoip/io.c
 delete mode 100644 arch/sh/boards/renesas/hs7751rvoip/irq.c
 delete mode 100644 arch/sh/boards/renesas/hs7751rvoip/pci.c
 delete mode 100644 arch/sh/boards/renesas/hs7751rvoip/setup.c
 delete mode 100644 arch/sh/configs/hs7751rvoip_defconfig
 delete mode 100644 include/asm-sh/hs7751rvoip.h

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index ddbd610d27e7..85bd9ac6f5e0 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -440,13 +440,6 @@ config SH_SECUREEDGE5410
 	  This includes both the OEM SecureEdge products as well as the
 	  SME product line.
 
-config SH_HS7751RVOIP
-	bool "HS7751RVOIP"
-	depends on CPU_SUBTYPE_SH7751R
-	help
-	  Select HS7751RVOIP if configuring for a Renesas Technology
-	  Sales VoIP board.
-
 config SH_7710VOIPGW
 	bool "SH7710-VOIP-GW"
 	depends on CPU_SUBTYPE_SH7710
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index e04b19293652..21cc649e1c12 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -112,7 +112,6 @@ machdir-$(CONFIG_SH_DREAMCAST)			+= dreamcast
 machdir-$(CONFIG_SH_MPC1211)			+= mpc1211
 machdir-$(CONFIG_SH_SH03)			+= sh03
 machdir-$(CONFIG_SH_SECUREEDGE5410)		+= snapgear
-machdir-$(CONFIG_SH_HS7751RVOIP)		+= renesas/hs7751rvoip
 machdir-$(CONFIG_SH_RTS7751R2D)			+= renesas/rts7751r2d
 machdir-$(CONFIG_SH_7751_SYSTEMH)		+= renesas/systemh
 machdir-$(CONFIG_SH_EDOSK7705)			+= renesas/edosk7705
diff --git a/arch/sh/boards/renesas/hs7751rvoip/Kconfig b/arch/sh/boards/renesas/hs7751rvoip/Kconfig
deleted file mode 100644
index 1743be477be5..000000000000
--- a/arch/sh/boards/renesas/hs7751rvoip/Kconfig
+++ /dev/null
@@ -1,12 +0,0 @@
-if SH_HS7751RVOIP
-
-menu "HS7751RVoIP options"
-
-config HS7751RVOIP_CODEC
-	bool "Support VoIP Codec section"
-	help
-	  Selecting this option will support CODEC section.
-
-endmenu
-
-endif
diff --git a/arch/sh/boards/renesas/hs7751rvoip/Makefile b/arch/sh/boards/renesas/hs7751rvoip/Makefile
deleted file mode 100644
index e626377c55ee..000000000000
--- a/arch/sh/boards/renesas/hs7751rvoip/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# Makefile for the HS7751RVoIP specific parts of the kernel
-#
-
-obj-y	 := setup.o io.o irq.o
-
-obj-$(CONFIG_PCI) += pci.o
-
diff --git a/arch/sh/boards/renesas/hs7751rvoip/io.c b/arch/sh/boards/renesas/hs7751rvoip/io.c
deleted file mode 100644
index bb9aa0d62852..000000000000
--- a/arch/sh/boards/renesas/hs7751rvoip/io.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * linux/arch/sh/boards/renesas/hs7751rvoip/io.c
- *
- * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
- * Based largely on io_se.c.
- *
- * I/O routine for Renesas Technology sales HS7751RVoIP
- *
- * Initial version only to support LAN access; some
- * placeholder code from io_hs7751rvoip.c left in with the
- * expectation of later SuperIO and PCMCIA access.
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <asm/io.h>
-#include <asm/hs7751rvoip.h>
-#include <asm/addrspace.h>
-
-extern void *area6_io8_base;	/* Area 6 8bit I/O Base address */
-extern void *area5_io16_base;	/* Area 5 16bit I/O Base address */
-
-/*
- * The 7751R HS7751RVoIP uses the built-in PCI controller (PCIC)
- * of the 7751R processor, and has a SuperIO accessible via the PCI.
- * The board also includes a PCMCIA controller on its memory bus,
- * like the other Solution Engine boards.
- */
-
-#define CODEC_IO_BASE	0x1000
-#define CODEC_IOMAP(a)	((unsigned long)area6_io8_base + ((a) - CODEC_IO_BASE))
-
-static inline unsigned long port2adr(unsigned int port)
-{
-	if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
-		if (port == 0x3f6)
-			return ((unsigned long)area5_io16_base + 0x0c);
-		else
-			return ((unsigned long)area5_io16_base + 0x800 +
-				((port-0x1f0) << 1));
-	else
-		maybebadio((unsigned long)port);
-	return port;
-}
-
-/* The 7751R HS7751RVoIP seems to have everything hooked */
-/* up pretty normally (nothing on high-bytes only...) so this */
-/* shouldn't be needed */
-static inline int shifted_port(unsigned long port)
-{
-	/* For IDE registers, value is not shifted */
-	if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
-		return 0;
-	else
-		return 1;
-}
-
-#if defined(CONFIG_HS7751RVOIP_CODEC)
-#define codec_port(port)	\
-	((CODEC_IO_BASE <= (port)) && ((port) < (CODEC_IO_BASE + 0x20)))
-#else
-#define codec_port(port)	(0)
-#endif
-
-/*
- * General outline: remap really low stuff [eventually] to SuperIO,
- * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
- * is mapped through the PCI IO window.  Stuff with high bits (PXSEG)
- * should be way beyond the window, and is used  w/o translation for
- * compatibility.
- */
-unsigned char hs7751rvoip_inb(unsigned long port)
-{
-	if (PXSEG(port))
-		return ctrl_inb(port);
-	else if (codec_port(port))
-		return ctrl_inb(CODEC_IOMAP(port));
-	else if (is_pci_ioaddr(port) || shifted_port(port))
-		return ctrl_inb(pci_ioaddr(port));
-	else
-		return ctrl_inw(port2adr(port)) & 0xff;
-}
-
-unsigned char hs7751rvoip_inb_p(unsigned long port)
-{
-	unsigned char v;
-
-        if (PXSEG(port))
-		v = ctrl_inb(port);
-	else if (codec_port(port))
-		v = ctrl_inb(CODEC_IOMAP(port));
-	else if (is_pci_ioaddr(port) || shifted_port(port))
-		v = ctrl_inb(pci_ioaddr(port));
-	else
-		v = ctrl_inw(port2adr(port)) & 0xff;
-	ctrl_delay();
-	return v;
-}
-
-unsigned short hs7751rvoip_inw(unsigned long port)
-{
-        if (PXSEG(port))
-		return ctrl_inw(port);
-	else if (is_pci_ioaddr(port) || shifted_port(port))
-		return ctrl_inw(pci_ioaddr(port));
-	else
-		maybebadio(port);
-	return 0;
-}
-
-unsigned int hs7751rvoip_inl(unsigned long port)
-{
-        if (PXSEG(port))
-		return ctrl_inl(port);
-	else if (is_pci_ioaddr(port) || shifted_port(port))
-		return ctrl_inl(pci_ioaddr(port));
-	else
-		maybebadio(port);
-	return 0;
-}
-
-void hs7751rvoip_outb(unsigned char value, unsigned long port)
-{
-
-        if (PXSEG(port))
-		ctrl_outb(value, port);
-	else if (codec_port(port))
-		ctrl_outb(value, CODEC_IOMAP(port));
-	else if (is_pci_ioaddr(port) || shifted_port(port))
-		ctrl_outb(value, pci_ioaddr(port));
-	else
-		ctrl_outb(value, port2adr(port));
-}
-
-void hs7751rvoip_outb_p(unsigned char value, unsigned long port)
-{
-        if (PXSEG(port))
-		ctrl_outb(value, port);
-	else if (codec_port(port))
-		ctrl_outb(value, CODEC_IOMAP(port));
-	else if (is_pci_ioaddr(port) || shifted_port(port))
-		ctrl_outb(value, pci_ioaddr(port));
-	else
-		ctrl_outw(value, port2adr(port));
-
-	ctrl_delay();
-}
-
-void hs7751rvoip_outw(unsigned short value, unsigned long port)
-{
-        if (PXSEG(port))
-		ctrl_outw(value, port);
-	else if (is_pci_ioaddr(port) || shifted_port(port))
-		ctrl_outw(value, pci_ioaddr(port));
-	else
-		maybebadio(port);
-}
-
-void hs7751rvoip_outl(unsigned int value, unsigned long port)
-{
-        if (PXSEG(port))
-		ctrl_outl(value, port);
-	else if (is_pci_ioaddr(port) || shifted_port(port))
-		ctrl_outl(value, pci_ioaddr(port));
-	else
-		maybebadio(port);
-}
-
-void hs7751rvoip_insb(unsigned long port, void *addr, unsigned long count)
-{
-	u8 *buf = addr;
-
-	if (PXSEG(port))
-		while (count--)
-			*buf++ = ctrl_inb(port);
-	else if (codec_port(port))
-		while (count--)
-			*buf++ = ctrl_inb(CODEC_IOMAP(port));
-	else if (is_pci_ioaddr(port) || shifted_port(port)) {
-		volatile u8 *bp = (volatile u8 *)pci_ioaddr(port);
-
-		while (count--)
-			*buf++ = *bp;
-	} else {
-		volatile u16 *p = (volatile u16 *)port2adr(port);
-
-		while (count--)
-			*buf++ = *p & 0xff;
-	}
-}
-
-void hs7751rvoip_insw(unsigned long port, void *addr, unsigned long count)
-{
-	volatile u16 *p;
-	u16 *buf = addr;
-
-	if (PXSEG(port))
-		p = (volatile u16 *)port;
-	else if (is_pci_ioaddr(port) || shifted_port(port))
-		p = (volatile u16 *)pci_ioaddr(port);
-	else
-		p = (volatile u16 *)port2adr(port);
-	while (count--)
-		*buf++ = *p;
-}
-
-void hs7751rvoip_insl(unsigned long port, void *addr, unsigned long count)
-{
-
-	if (is_pci_ioaddr(port) || shifted_port(port)) {
-		volatile u32 *p = (volatile u32 *)pci_ioaddr(port);
-		u32 *buf = addr;
-
-		while (count--)
-			*buf++ = *p;
-	} else
-		maybebadio(port);
-}
-
-void hs7751rvoip_outsb(unsigned long port, const void *addr, unsigned long count)
-{
-	const u8 *buf = addr;
-
-	if (PXSEG(port))
-		while (count--)
-			ctrl_outb(*buf++, port);
-	else if (codec_port(port))
-		while (count--)
-			ctrl_outb(*buf++, CODEC_IOMAP(port));
-	else if (is_pci_ioaddr(port) || shifted_port(port)) {
-		volatile u8 *bp = (volatile u8 *)pci_ioaddr(port);
-
-		while (count--)
-			*bp = *buf++;
-	} else {
-		volatile u16 *p = (volatile u16 *)port2adr(port);
-
-		while (count--)
-			*p = *buf++;
-	}
-}
-
-void hs7751rvoip_outsw(unsigned long port, const void *addr, unsigned long count)
-{
-	volatile u16 *p;
-	const u16 *buf = addr;
-
-	if (PXSEG(port))
-		p = (volatile u16 *)port;
-	else if (is_pci_ioaddr(port) || shifted_port(port))
-		p = (volatile u16 *)pci_ioaddr(port);
-	else
-		p = (volatile u16 *)port2adr(port);
-
-	while (count--)
-		*p = *buf++;
-}
-
-void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count)
-{
-	const u32 *buf = addr;
-
-	if (is_pci_ioaddr(port) || shifted_port(port)) {
-		volatile u32 *p = (volatile u32 *)pci_ioaddr(port);
-
-		while (count--)
-			*p = *buf++;
-	} else
-		maybebadio(port);
-}
-
-void __iomem *hs7751rvoip_ioport_map(unsigned long port, unsigned int size)
-{
-        if (PXSEG(port))
-                return (void __iomem *)port;
-	else if (unlikely(codec_port(port) && (size == 1)))
-		return (void __iomem *)CODEC_IOMAP(port);
-        else if (is_pci_ioaddr(port))
-                return (void __iomem *)pci_ioaddr(port);
-
-        return (void __iomem *)port2adr(port);
-}
diff --git a/arch/sh/boards/renesas/hs7751rvoip/irq.c b/arch/sh/boards/renesas/hs7751rvoip/irq.c
deleted file mode 100644
index e55c6686b21f..000000000000
--- a/arch/sh/boards/renesas/hs7751rvoip/irq.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * linux/arch/sh/boards/renesas/hs7751rvoip/irq.c
- *
- * Copyright (C) 2000  Kazumoto Kojima
- *
- * Renesas Technology Sales HS7751RVoIP Support.
- *
- * Modified for HS7751RVoIP by
- * Atom Create Engineering Co., Ltd. 2002.
- * Lineo uSolutions, Inc. 2003.
- */
-
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/hs7751rvoip.h>
-
-static int mask_pos[] = {8, 9, 10, 11, 12, 13, 0, 1, 2, 3, 4, 5, 6, 7};
-
-static void enable_hs7751rvoip_irq(unsigned int irq);
-static void disable_hs7751rvoip_irq(unsigned int irq);
-
-/* shutdown is same as "disable" */
-#define shutdown_hs7751rvoip_irq disable_hs7751rvoip_irq
-
-static void ack_hs7751rvoip_irq(unsigned int irq);
-static void end_hs7751rvoip_irq(unsigned int irq);
-
-static unsigned int startup_hs7751rvoip_irq(unsigned int irq)
-{
-	enable_hs7751rvoip_irq(irq);
-	return 0; /* never anything pending */
-}
-
-static void disable_hs7751rvoip_irq(unsigned int irq)
-{
-	unsigned short val;
-	unsigned short mask = 0xffff ^ (0x0001 << mask_pos[irq]);
-
-	/* Set the priority in IPR to 0 */
-	val = ctrl_inw(IRLCNTR3);
-	val &= mask;
-	ctrl_outw(val, IRLCNTR3);
-}
-
-static void enable_hs7751rvoip_irq(unsigned int irq)
-{
-	unsigned short val;
-	unsigned short value = (0x0001 << mask_pos[irq]);
-
-	/* Set priority in IPR back to original value */
-	val = ctrl_inw(IRLCNTR3);
-	val |= value;
-	ctrl_outw(val, IRLCNTR3);
-}
-
-static void ack_hs7751rvoip_irq(unsigned int irq)
-{
-	disable_hs7751rvoip_irq(irq);
-}
-
-static void end_hs7751rvoip_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_hs7751rvoip_irq(irq);
-}
-
-static struct hw_interrupt_type hs7751rvoip_irq_type = {
-	.typename =  "HS7751RVoIP IRQ",
-	.startup = startup_hs7751rvoip_irq,
-	.shutdown = shutdown_hs7751rvoip_irq,
-	.enable = enable_hs7751rvoip_irq,
-	.disable = disable_hs7751rvoip_irq,
-	.ack = ack_hs7751rvoip_irq,
-	.end = end_hs7751rvoip_irq,
-};
-
-static void make_hs7751rvoip_irq(unsigned int irq)
-{
-	disable_irq_nosync(irq);
-	irq_desc[irq].chip = &hs7751rvoip_irq_type;
-	disable_hs7751rvoip_irq(irq);
-}
-
-/*
- * Initialize IRQ setting
- */
-void __init init_hs7751rvoip_IRQ(void)
-{
-	int i;
-
-	/* IRL0=ON HOOK1
-	 * IRL1=OFF HOOK1
-	 * IRL2=ON HOOK2
-	 * IRL3=OFF HOOK2
-	 * IRL4=Ringing Detection
-	 * IRL5=CODEC
-	 * IRL6=Ethernet
-	 * IRL7=Ethernet Hub
-	 * IRL8=USB Communication
-	 * IRL9=USB Connection
-	 * IRL10=USB DMA
-	 * IRL11=CF Card
-	 * IRL12=PCMCIA
-	 * IRL13=PCI Slot
-	 */
-	ctrl_outw(0x9876, IRLCNTR1);
-	ctrl_outw(0xdcba, IRLCNTR2);
-	ctrl_outw(0x0050, IRLCNTR4);
-	ctrl_outw(0x4321, IRLCNTR5);
-
-	for (i=0; i<14; i++)
-		make_hs7751rvoip_irq(i);
-}
diff --git a/arch/sh/boards/renesas/hs7751rvoip/pci.c b/arch/sh/boards/renesas/hs7751rvoip/pci.c
deleted file mode 100644
index 1c0ddee30d21..000000000000
--- a/arch/sh/boards/renesas/hs7751rvoip/pci.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * linux/arch/sh/boards/renesas/hs7751rvoip/pci.c
- *
- * Author:  Ian DaSilva (idasilva@mvista.com)
- *
- * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.
- *
- * PCI initialization for the Renesas SH7751R HS7751RVoIP board
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/module.h>
-
-#include <asm/io.h>
-#include "../../../drivers/pci/pci-sh7751.h"
-#include <asm/hs7751rvoip/hs7751rvoip.h>
-
-#define PCIMCR_MRSET_OFF	0xBFFFFFFF
-#define PCIMCR_RFSH_OFF		0xFFFFFFFB
-
-/*
- * Only long word accesses of the PCIC's internal local registers and the
- * configuration registers from the CPU is supported.
- */
-#define PCIC_WRITE(x,v) writel((v), PCI_REG(x))
-#define PCIC_READ(x) readl(PCI_REG(x))
-
-/*
- * Description:  This function sets up and initializes the pcic, sets
- * up the BARS, maps the DRAM into the address space etc, etc.
- */
-int __init pcibios_init_platform(void)
-{
-	unsigned long bcr1, wcr1, wcr2, wcr3, mcr;
-	unsigned short bcr2, bcr3;
-
-	/*
-	 * Initialize the slave bus controller on the pcic.  The values used
-	 * here should not be hardcoded, but they should be taken from the bsc
-	 * on the processor, to make this function as generic as possible.
-	 * (i.e. Another sbc may usr different SDRAM timing settings -- in order
-	 * for the pcic to work, its settings need to be exactly the same.)
-	 */
-	bcr1 = (*(volatile unsigned long *)(SH7751_BCR1));
-	bcr2 = (*(volatile unsigned short *)(SH7751_BCR2));
-	bcr3 = (*(volatile unsigned short *)(SH7751_BCR3));
-	wcr1 = (*(volatile unsigned long *)(SH7751_WCR1));
-	wcr2 = (*(volatile unsigned long *)(SH7751_WCR2));
-	wcr3 = (*(volatile unsigned long *)(SH7751_WCR3));
-	mcr = (*(volatile unsigned long *)(SH7751_MCR));
-
-	bcr1 = bcr1 | 0x00080000;  /* Enable Bit 19, BREQEN */
-	(*(volatile unsigned long *)(SH7751_BCR1)) = bcr1;
-
-	bcr1 = bcr1 | 0x40080000;  /* Enable Bit 19 BREQEN, set PCIC to slave */
-	PCIC_WRITE(SH7751_PCIBCR1, bcr1);	/* PCIC BCR1 */
-	PCIC_WRITE(SH7751_PCIBCR2, bcr2);	/* PCIC BCR2 */
-	PCIC_WRITE(SH7751_PCIBCR3, bcr3);	/* PCIC BCR3 */
-	PCIC_WRITE(SH7751_PCIWCR1, wcr1);	/* PCIC WCR1 */
-	PCIC_WRITE(SH7751_PCIWCR2, wcr2);	/* PCIC WCR2 */
-	PCIC_WRITE(SH7751_PCIWCR3, wcr3);	/* PCIC WCR3 */
-	mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
-	PCIC_WRITE(SH7751_PCIMCR, mcr);		/* PCIC MCR */
-
-	/* Enable all interrupts, so we know what to fix */
-	PCIC_WRITE(SH7751_PCIINTM, 0x0000c3ff);
-	PCIC_WRITE(SH7751_PCIAINTM, 0x0000380f);
-
-	/* Set up standard PCI config registers */
-	PCIC_WRITE(SH7751_PCICONF1, 0xFB900047); /* Bus Master, Mem & I/O access */
-	PCIC_WRITE(SH7751_PCICONF2, 0x00000000); /* PCI Class code & Revision ID */
-	PCIC_WRITE(SH7751_PCICONF4, 0xab000001); /* PCI I/O address (local regs) */
-	PCIC_WRITE(SH7751_PCICONF5, 0x0c000000); /* PCI MEM address (local RAM)  */
-	PCIC_WRITE(SH7751_PCICONF6, 0xd0000000); /* PCI MEM address (unused) */
-	PCIC_WRITE(SH7751_PCICONF11, 0x35051054); /* PCI Subsystem ID & Vendor ID */
-	PCIC_WRITE(SH7751_PCILSR0, 0x03f00000);	/* MEM (full 64M exposed) */
-	PCIC_WRITE(SH7751_PCILSR1, 0x00000000); /* MEM (unused) */
-	PCIC_WRITE(SH7751_PCILAR0, 0x0c000000); /* MEM (direct map from PCI) */
-	PCIC_WRITE(SH7751_PCILAR1, 0x00000000); /* MEM (unused) */
-
-	/* Now turn it on... */
-	PCIC_WRITE(SH7751_PCICR, 0xa5000001);
-
-	/*
-	 * Set PCIMBR and PCIIOBR here, assuming a single window
-	 * (16M MEM, 256K IO) is enough.  If a larger space is
-	 * needed, the readx/writex and inx/outx functions will
-	 * have to do more (e.g. setting registers for each call).
-	 */
-
-	/*
-	 * Set the MBR so PCI address is one-to-one with window,
-	 * meaning all calls go straight through... use ifdef to
-	 * catch erroneous assumption.
-	 */
-	BUG_ON(PCIBIOS_MIN_MEM != SH7751_PCI_MEMORY_BASE);
-
-	PCIC_WRITE(SH7751_PCIMBR, PCIBIOS_MIN_MEM);
-
-	/* Set IOBR for window containing area specified in pci.h */
-	PCIC_WRITE(SH7751_PCIIOBR, (PCIBIOS_MIN_IO & SH7751_PCIIOBR_MASK));
-
-	/* All done, may as well say so... */
-	printk("SH7751R PCI: Finished initialization of the PCI controller\n");
-
-	return 1;
-}
-
-int __init pcibios_map_platform_irq(u8 slot, u8 pin)
-{
-        switch (slot) {
-	case 0: return IRQ_PCISLOT;	/* PCI Extend slot */
-	case 1: return IRQ_PCMCIA;	/* PCI Cardbus Bridge */
-	case 2: return IRQ_PCIETH;	/* Realtek Ethernet controller */
-	case 3: return IRQ_PCIHUB;	/* Realtek Ethernet Hub controller */
-	default:
-		printk("PCI: Bad IRQ mapping request for slot %d\n", slot);
-		return -1;
-	}
-}
-
-static struct resource sh7751_io_resource = {
-	.name	= "SH7751_IO",
-	.start	= 0x4000,
-	.end	= 0x4000 + SH7751_PCI_IO_SIZE - 1,
-	.flags	= IORESOURCE_IO
-};
-
-static struct resource sh7751_mem_resource = {
-	.name	= "SH7751_mem",
-	.start	= SH7751_PCI_MEMORY_BASE,
-	.end	= SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1,
-	.flags	= IORESOURCE_MEM
-};
-
-extern struct pci_ops sh7751_pci_ops;
-
-struct pci_channel board_pci_channels[] = {
-	{ &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
-	{ NULL, NULL, NULL, 0, 0 },
-};
-EXPORT_SYMBOL(board_pci_channels);
diff --git a/arch/sh/boards/renesas/hs7751rvoip/setup.c b/arch/sh/boards/renesas/hs7751rvoip/setup.c
deleted file mode 100644
index c05625975f2c..000000000000
--- a/arch/sh/boards/renesas/hs7751rvoip/setup.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * Renesas Technology Sales HS7751RVoIP Support.
- *
- * Copyright (C) 2000  Kazumoto Kojima
- *
- * Modified for HS7751RVoIP by
- * Atom Create Engineering Co., Ltd. 2002.
- * Lineo uSolutions, Inc. 2003.
- */
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/mm.h>
-#include <linux/pm.h>
-#include <asm/hs7751rvoip.h>
-#include <asm/io.h>
-#include <asm/machvec.h>
-
-static void hs7751rvoip_power_off(void)
-{
-	ctrl_outw(ctrl_inw(PA_OUTPORTR) & 0xffdf, PA_OUTPORTR);
-}
-
-void *area5_io8_base;
-void *area6_io8_base;
-void *area5_io16_base;
-void *area6_io16_base;
-
-static int __init hs7751rvoip_cf_init(void)
-{
-	pgprot_t prot;
-	unsigned long paddrbase;
-
-	/* open I/O area window */
-	paddrbase = virt_to_phys((void *)(PA_AREA5_IO+0x00000800));
-	prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_COM16);
-	area5_io16_base = p3_ioremap(paddrbase, PAGE_SIZE, prot.pgprot);
-	if (!area5_io16_base) {
-		printk("allocate_cf_area : can't open CF I/O window!\n");
-		return -ENOMEM;
-	}
-
-	/* XXX : do we need attribute and common-memory area also? */
-
-	paddrbase = virt_to_phys((void *)PA_AREA6_IO);
-#if defined(CONFIG_HS7751RVOIP_CODEC)
-	prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_COM8);
-#else
-	prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO8);
-#endif
-	area6_io8_base = p3_ioremap(paddrbase, PAGE_SIZE, prot.pgprot);
-	if (!area6_io8_base) {
-		printk("allocate_cf_area : can't open CODEC I/O 8bit window!\n");
-		return -ENOMEM;
-	}
-	prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO16);
-	area6_io16_base = p3_ioremap(paddrbase, PAGE_SIZE, prot.pgprot);
-	if (!area6_io16_base) {
-		printk("allocate_cf_area : can't open CODEC I/O 16bit window!\n");
-		return -ENOMEM;
-	}
-
-	return 0;
-}
-device_initcall(hs7751rvoip_cf_init);
-
-/*
- * Initialize the board
- */
-static void __init hs7751rvoip_setup(char **cmdline_p)
-{
-	ctrl_outb(0xf0, PA_OUTPORTR);
-	pm_power_off = hs7751rvoip_power_off;
-
-	printk(KERN_INFO "Renesas Technology Sales HS7751RVoIP-2 support.\n");
-}
-
-static struct sh_machine_vector mv_hs7751rvoip __initmv = {
-	.mv_name		= "HS7751RVoIP",
-	.mv_setup		= hs7751rvoip_setup,
-	.mv_nr_irqs		= 72,
-
-	.mv_inb			= hs7751rvoip_inb,
-	.mv_inw			= hs7751rvoip_inw,
-	.mv_inl			= hs7751rvoip_inl,
-	.mv_outb		= hs7751rvoip_outb,
-	.mv_outw		= hs7751rvoip_outw,
-	.mv_outl		= hs7751rvoip_outl,
-
-	.mv_inb_p		= hs7751rvoip_inb_p,
-	.mv_inw_p		= hs7751rvoip_inw,
-	.mv_inl_p		= hs7751rvoip_inl,
-	.mv_outb_p		= hs7751rvoip_outb_p,
-	.mv_outw_p		= hs7751rvoip_outw,
-	.mv_outl_p		= hs7751rvoip_outl,
-
-	.mv_insb		= hs7751rvoip_insb,
-	.mv_insw		= hs7751rvoip_insw,
-	.mv_insl		= hs7751rvoip_insl,
-	.mv_outsb		= hs7751rvoip_outsb,
-	.mv_outsw		= hs7751rvoip_outsw,
-	.mv_outsl		= hs7751rvoip_outsl,
-
-	.mv_init_irq		= init_hs7751rvoip_IRQ,
-	.mv_ioport_map		= hs7751rvoip_ioport_map,
-};
diff --git a/arch/sh/configs/hs7751rvoip_defconfig b/arch/sh/configs/hs7751rvoip_defconfig
deleted file mode 100644
index 5d9da5a02759..000000000000
--- a/arch/sh/configs/hs7751rvoip_defconfig
+++ /dev/null
@@ -1,908 +0,0 @@
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.18
-# Tue Oct  3 13:04:52 2006
-#
-CONFIG_SUPERH=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_LOCK_KERNEL=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-# CONFIG_IPC_NS is not set
-CONFIG_POSIX_MQUEUE=y
-CONFIG_BSD_PROCESS_ACCT=y
-# CONFIG_BSD_PROCESS_ACCT_V3 is not set
-# CONFIG_TASKSTATS is not set
-# CONFIG_UTS_NS is not set
-# CONFIG_AUDIT is not set
-# CONFIG_IKCONFIG is not set
-# CONFIG_RELAY is not set
-CONFIG_INITRAMFS_SOURCE=""
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_SYSCTL=y
-CONFIG_EMBEDDED=y
-CONFIG_UID16=y
-# CONFIG_SYSCTL_SYSCALL is not set
-# CONFIG_KALLSYMS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_SHMEM=y
-CONFIG_SLAB=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_RT_MUTEXES=y
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-# CONFIG_SLOB is not set
-
-#
-# Loadable module support
-#
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_MODULE_FORCE_UNLOAD is not set
-# CONFIG_MODVERSIONS is not set
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_KMOD=y
-
-#
-# Block layer
-#
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-CONFIG_DEFAULT_AS=y
-# CONFIG_DEFAULT_DEADLINE is not set
-# CONFIG_DEFAULT_CFQ is not set
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="anticipatory"
-
-#
-# System type
-#
-# CONFIG_SH_SOLUTION_ENGINE is not set
-# CONFIG_SH_7751_SOLUTION_ENGINE is not set
-# CONFIG_SH_7300_SOLUTION_ENGINE is not set
-# CONFIG_SH_7343_SOLUTION_ENGINE is not set
-# CONFIG_SH_73180_SOLUTION_ENGINE is not set
-# CONFIG_SH_7751_SYSTEMH is not set
-# CONFIG_SH_HP6XX is not set
-# CONFIG_SH_EC3104 is not set
-# CONFIG_SH_SATURN is not set
-# CONFIG_SH_DREAMCAST is not set
-# CONFIG_SH_BIGSUR is not set
-# CONFIG_SH_MPC1211 is not set
-# CONFIG_SH_SH03 is not set
-# CONFIG_SH_SECUREEDGE5410 is not set
-CONFIG_SH_HS7751RVOIP=y
-# CONFIG_SH_7710VOIPGW is not set
-# CONFIG_SH_RTS7751R2D is not set
-# CONFIG_SH_R7780RP is not set
-# CONFIG_SH_EDOSK7705 is not set
-# CONFIG_SH_SH4202_MICRODEV is not set
-# CONFIG_SH_LANDISK is not set
-# CONFIG_SH_TITAN is not set
-# CONFIG_SH_SHMIN is not set
-# CONFIG_SH_UNKNOWN is not set
-
-#
-# Processor selection
-#
-CONFIG_CPU_SH4=y
-
-#
-# SH-2 Processor Support
-#
-# CONFIG_CPU_SUBTYPE_SH7604 is not set
-
-#
-# SH-3 Processor Support
-#
-# CONFIG_CPU_SUBTYPE_SH7300 is not set
-# CONFIG_CPU_SUBTYPE_SH7705 is not set
-# CONFIG_CPU_SUBTYPE_SH7706 is not set
-# CONFIG_CPU_SUBTYPE_SH7707 is not set
-# CONFIG_CPU_SUBTYPE_SH7708 is not set
-# CONFIG_CPU_SUBTYPE_SH7709 is not set
-# CONFIG_CPU_SUBTYPE_SH7710 is not set
-
-#
-# SH-4 Processor Support
-#
-# CONFIG_CPU_SUBTYPE_SH7750 is not set
-# CONFIG_CPU_SUBTYPE_SH7091 is not set
-# CONFIG_CPU_SUBTYPE_SH7750R is not set
-# CONFIG_CPU_SUBTYPE_SH7750S is not set
-# CONFIG_CPU_SUBTYPE_SH7751 is not set
-CONFIG_CPU_SUBTYPE_SH7751R=y
-# CONFIG_CPU_SUBTYPE_SH7760 is not set
-# CONFIG_CPU_SUBTYPE_SH4_202 is not set
-
-#
-# ST40 Processor Support
-#
-# CONFIG_CPU_SUBTYPE_ST40STB1 is not set
-# CONFIG_CPU_SUBTYPE_ST40GX1 is not set
-
-#
-# SH-4A Processor Support
-#
-# CONFIG_CPU_SUBTYPE_SH7770 is not set
-# CONFIG_CPU_SUBTYPE_SH7780 is not set
-
-#
-# SH4AL-DSP Processor Support
-#
-# CONFIG_CPU_SUBTYPE_SH73180 is not set
-# CONFIG_CPU_SUBTYPE_SH7343 is not set
-
-#
-# Memory management options
-#
-CONFIG_MMU=y
-CONFIG_PAGE_OFFSET=0x80000000
-CONFIG_MEMORY_START=0x0c000000
-CONFIG_MEMORY_SIZE=0x04000000
-CONFIG_VSYSCALL=y
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-# CONFIG_DISCONTIGMEM_MANUAL is not set
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
-
-#
-# Cache configuration
-#
-# CONFIG_SH_DIRECT_MAPPED is not set
-# CONFIG_SH_WRITETHROUGH is not set
-# CONFIG_SH_OCRAM is not set
-
-#
-# Processor features
-#
-CONFIG_CPU_LITTLE_ENDIAN=y
-CONFIG_SH_FPU=y
-# CONFIG_SH_DSP is not set
-# CONFIG_SH_STORE_QUEUES is not set
-CONFIG_CPU_HAS_INTEVT=y
-CONFIG_CPU_HAS_SR_RB=y
-
-#
-# Timer support
-#
-CONFIG_SH_TMU=y
-
-#
-# HS7751RVoIP options
-#
-CONFIG_HS7751RVOIP_CODEC=y
-CONFIG_SH_PCLK_FREQ=60000000
-
-#
-# CPU Frequency scaling
-#
-# CONFIG_CPU_FREQ is not set
-
-#
-# DMA support
-#
-# CONFIG_SH_DMA is not set
-
-#
-# Companion Chips
-#
-# CONFIG_HD6446X_SERIES is not set
-
-#
-# Kernel features
-#
-# CONFIG_HZ_100 is not set
-CONFIG_HZ_250=y
-# CONFIG_HZ_1000 is not set
-CONFIG_HZ=250
-# CONFIG_KEXEC is not set
-# CONFIG_SMP is not set
-# CONFIG_PREEMPT_NONE is not set
-# CONFIG_PREEMPT_VOLUNTARY is not set
-CONFIG_PREEMPT=y
-CONFIG_PREEMPT_BKL=y
-
-#
-# Boot options
-#
-CONFIG_ZERO_PAGE_OFFSET=0x00001000
-CONFIG_BOOT_LINK_OFFSET=0x00800000
-# CONFIG_UBC_WAKEUP is not set
-CONFIG_CMDLINE_BOOL=y
-CONFIG_CMDLINE="mem=64M console=ttySC1,115200 root=/dev/hda1"
-
-#
-# Bus options
-#
-# CONFIG_PCI is not set
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
-# CONFIG_PCCARD is not set
-
-#
-# PCI Hotplug Support
-#
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_FLAT is not set
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Power management options (EXPERIMENTAL)
-#
-# CONFIG_PM is not set
-
-#
-# Networking
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-# CONFIG_NETDEBUG is not set
-CONFIG_PACKET=y
-CONFIG_PACKET_MMAP=y
-CONFIG_UNIX=y
-CONFIG_XFRM=y
-# CONFIG_XFRM_USER is not set
-# CONFIG_XFRM_SUB_POLICY is not set
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-CONFIG_IP_ADVANCED_ROUTER=y
-CONFIG_ASK_IP_FIB_HASH=y
-# CONFIG_IP_FIB_TRIE is not set
-CONFIG_IP_FIB_HASH=y
-# CONFIG_IP_MULTIPLE_TABLES is not set
-# CONFIG_IP_ROUTE_MULTIPATH is not set
-# CONFIG_IP_ROUTE_VERBOSE is not set
-# CONFIG_IP_PNP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_IP_MROUTE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_XFRM_TUNNEL is not set
-# CONFIG_INET_TUNNEL is not set
-CONFIG_INET_XFRM_MODE_TRANSPORT=y
-CONFIG_INET_XFRM_MODE_TUNNEL=y
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
-# CONFIG_IPV6 is not set
-# CONFIG_INET6_XFRM_TUNNEL is not set
-# CONFIG_INET6_TUNNEL is not set
-# CONFIG_NETWORK_SECMARK is not set
-# CONFIG_NETFILTER is not set
-
-#
-# DCCP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_DCCP is not set
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_SCTP is not set
-
-#
-# TIPC Configuration (EXPERIMENTAL)
-#
-# CONFIG_TIPC is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-# CONFIG_IEEE80211 is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-CONFIG_FW_LOADER=m
-# CONFIG_SYS_HYPERVISOR is not set
-
-#
-# Connector - unified userspace <-> kernelspace linker
-#
-# CONFIG_CONNECTOR is not set
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_COW_COMMON is not set
-# CONFIG_BLK_DEV_LOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_RAM is not set
-# CONFIG_BLK_DEV_INITRD is not set
-# CONFIG_CDROM_PKTCDVD is not set
-# CONFIG_ATA_OVER_ETH is not set
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-CONFIG_IDE=y
-CONFIG_IDE_MAX_HWIFS=1
-CONFIG_BLK_DEV_IDE=y
-
-#
-# Please see Documentation/ide.txt for help/info on IDE drives
-#
-# CONFIG_BLK_DEV_IDE_SATA is not set
-CONFIG_BLK_DEV_IDEDISK=y
-# CONFIG_IDEDISK_MULTI_MODE is not set
-# CONFIG_BLK_DEV_IDECD is not set
-# CONFIG_BLK_DEV_IDETAPE is not set
-# CONFIG_BLK_DEV_IDEFLOPPY is not set
-# CONFIG_IDE_TASK_IOCTL is not set
-
-#
-# IDE chipset support/bugfixes
-#
-CONFIG_IDE_GENERIC=y
-# CONFIG_IDE_ARM is not set
-# CONFIG_BLK_DEV_IDEDMA is not set
-# CONFIG_IDEDMA_AUTO is not set
-# CONFIG_BLK_DEV_HD is not set
-
-#
-# SCSI device support
-#
-# CONFIG_RAID_ATTRS is not set
-# CONFIG_SCSI is not set
-# CONFIG_SCSI_NETLINK is not set
-
-#
-# Serial ATA (prod) and Parallel ATA (experimental) drivers
-#
-# CONFIG_ATA is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-# CONFIG_FUSION is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-
-#
-# I2O device support
-#
-
-#
-# Network device support
-#
-CONFIG_NETDEVICES=y
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-
-#
-# PHY device support
-#
-# CONFIG_PHYLIB is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
-# CONFIG_STNIC is not set
-# CONFIG_SMC91X is not set
-
-#
-# Ethernet (1000 Mbit)
-#
-
-#
-# Ethernet (10000 Mbit)
-#
-
-#
-# Token Ring devices
-#
-
-#
-# Wireless LAN (non-hamradio)
-#
-# CONFIG_NET_RADIO is not set
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN is not set
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-
-#
-# Userland interfaces
-#
-# CONFIG_INPUT_MOUSEDEV is not set
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-CONFIG_SERIO=y
-CONFIG_SERIO_I8042=y
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_LIBPS2 is not set
-# CONFIG_SERIO_RAW is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-# CONFIG_VT is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_SH_SCI=y
-CONFIG_SERIAL_SH_SCI_NR_UARTS=2
-CONFIG_SERIAL_SH_SCI_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_UNIX98_PTYS=y
-# CONFIG_LEGACY_PTYS is not set
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-CONFIG_HW_RANDOM=y
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_RAW_DRIVER is not set
-
-#
-# TPM devices
-#
-# CONFIG_TCG_TPM is not set
-# CONFIG_TELCLOCK is not set
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-
-#
-# Dallas's 1-wire bus
-#
-
-#
-# Hardware Monitoring support
-#
-CONFIG_HWMON=y
-# CONFIG_HWMON_VID is not set
-# CONFIG_SENSORS_ABITUGURU is not set
-# CONFIG_SENSORS_F71805F is not set
-# CONFIG_SENSORS_VT1211 is not set
-# CONFIG_HWMON_DEBUG_CHIP is not set
-
-#
-# Misc devices
-#
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-CONFIG_VIDEO_V4L2=y
-
-#
-# Digital Video Broadcasting Devices
-#
-# CONFIG_DVB is not set
-
-#
-# Graphics support
-#
-CONFIG_FIRMWARE_EDID=y
-# CONFIG_FB is not set
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-# CONFIG_USB_ARCH_HAS_HCD is not set
-# CONFIG_USB_ARCH_HAS_OHCI is not set
-# CONFIG_USB_ARCH_HAS_EHCI is not set
-
-#
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
-#
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# MMC/SD Card support
-#
-# CONFIG_MMC is not set
-
-#
-# LED devices
-#
-# CONFIG_NEW_LEDS is not set
-
-#
-# LED drivers
-#
-
-#
-# LED Triggers
-#
-
-#
-# InfiniBand support
-#
-
-#
-# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
-#
-
-#
-# Real Time Clock
-#
-# CONFIG_RTC_CLASS is not set
-
-#
-# DMA Engine support
-#
-# CONFIG_DMA_ENGINE is not set
-
-#
-# DMA Clients
-#
-
-#
-# DMA Devices
-#
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-# CONFIG_EXT3_FS is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_OCFS2_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-# CONFIG_FUSE_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-# CONFIG_TMPFS_POSIX_ACL is not set
-# CONFIG_HUGETLBFS is not set
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-# CONFIG_CONFIGFS_FS is not set
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V3_ACL is not set
-CONFIG_NFS_V4=y
-CONFIG_NFS_DIRECTIO=y
-# CONFIG_NFSD is not set
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=y
-CONFIG_SUNRPC_GSS=y
-CONFIG_RPCSEC_GSS_KRB5=y
-# CONFIG_RPCSEC_GSS_SPKM3 is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-# CONFIG_9P_FS is not set
-
-#
-# Partition Types
-#
-CONFIG_PARTITION_ADVANCED=y
-# CONFIG_ACORN_PARTITION is not set
-# CONFIG_OSF_PARTITION is not set
-# CONFIG_AMIGA_PARTITION is not set
-# CONFIG_ATARI_PARTITION is not set
-# CONFIG_MAC_PARTITION is not set
-CONFIG_MSDOS_PARTITION=y
-# CONFIG_BSD_DISKLABEL is not set
-# CONFIG_MINIX_SUBPARTITION is not set
-# CONFIG_SOLARIS_X86_PARTITION is not set
-# CONFIG_UNIXWARE_DISKLABEL is not set
-# CONFIG_LDM_PARTITION is not set
-# CONFIG_SGI_PARTITION is not set
-# CONFIG_ULTRIX_PARTITION is not set
-# CONFIG_SUN_PARTITION is not set
-# CONFIG_KARMA_PARTITION is not set
-# CONFIG_EFI_PARTITION is not set
-
-#
-# Native Language Support
-#
-# CONFIG_NLS is not set
-
-#
-# Profiling support
-#
-# CONFIG_PROFILING is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_MUST_CHECK=y
-# CONFIG_MAGIC_SYSRQ is not set
-# CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_KERNEL is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_DEBUG_FS is not set
-# CONFIG_SH_STANDARD_BIOS is not set
-# CONFIG_EARLY_SCIF_CONSOLE is not set
-# CONFIG_KGDB is not set
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-CONFIG_CRYPTO=y
-CONFIG_CRYPTO_ALGAPI=y
-CONFIG_CRYPTO_BLKCIPHER=m
-CONFIG_CRYPTO_MANAGER=m
-# CONFIG_CRYPTO_HMAC is not set
-# CONFIG_CRYPTO_NULL is not set
-# CONFIG_CRYPTO_MD4 is not set
-CONFIG_CRYPTO_MD5=y
-# CONFIG_CRYPTO_SHA1 is not set
-# CONFIG_CRYPTO_SHA256 is not set
-# CONFIG_CRYPTO_SHA512 is not set
-# CONFIG_CRYPTO_WP512 is not set
-# CONFIG_CRYPTO_TGR192 is not set
-CONFIG_CRYPTO_ECB=m
-CONFIG_CRYPTO_CBC=m
-CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_BLOWFISH is not set
-# CONFIG_CRYPTO_TWOFISH is not set
-# CONFIG_CRYPTO_SERPENT is not set
-# CONFIG_CRYPTO_AES is not set
-# CONFIG_CRYPTO_CAST5 is not set
-# CONFIG_CRYPTO_CAST6 is not set
-# CONFIG_CRYPTO_TEA is not set
-# CONFIG_CRYPTO_ARC4 is not set
-# CONFIG_CRYPTO_KHAZAD is not set
-# CONFIG_CRYPTO_ANUBIS is not set
-# CONFIG_CRYPTO_DEFLATE is not set
-# CONFIG_CRYPTO_MICHAEL_MIC is not set
-# CONFIG_CRYPTO_CRC32C is not set
-# CONFIG_CRYPTO_TEST is not set
-
-#
-# Hardware crypto devices
-#
-
-#
-# Library routines
-#
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC16 is not set
-CONFIG_CRC32=y
-# CONFIG_LIBCRC32C is not set
-CONFIG_PLIST=y
diff --git a/arch/sh/drivers/pci/pci-auto.c b/arch/sh/drivers/pci/pci-auto.c
index 224e007736fb..ea404704ace8 100644
--- a/arch/sh/drivers/pci/pci-auto.c
+++ b/arch/sh/drivers/pci/pci-auto.c
@@ -516,10 +516,8 @@ pciauto_bus_scan(struct pci_channel *hose, int top_bus, int current_bus)
 					 PCI_COMMAND, cmdstat | PCI_COMMAND_IO |
 					 PCI_COMMAND_MEMORY |
 					 PCI_COMMAND_MASTER);
-#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D)
 		early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
 					PCI_LATENCY_TIMER, 0x80);
-#endif
 
 		/* Allocate PCI I/O and/or memory space */
 		pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_5);
diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types
index af4b7aa9a6b2..25810670a0fa 100644
--- a/arch/sh/tools/mach-types
+++ b/arch/sh/tools/mach-types
@@ -29,7 +29,6 @@ HP6XX			SH_HP6XX
 DREAMCAST		SH_DREAMCAST
 MPC1211			SH_MPC1211
 SNAPGEAR		SH_SECUREEDGE5410
-HS7751RVOIP		SH_HS7751RVOIP
 EDOSK7705		SH_EDOSK7705
 SH4202_MICRODEV		SH_SH4202_MICRODEV
 SH03			SH_SH03
diff --git a/include/asm-sh/hs7751rvoip.h b/include/asm-sh/hs7751rvoip.h
deleted file mode 100644
index c4cff9d33927..000000000000
--- a/include/asm-sh/hs7751rvoip.h
+++ /dev/null
@@ -1,54 +0,0 @@
-#ifndef __ASM_SH_RENESAS_HS7751RVOIP_H
-#define __ASM_SH_RENESAS_HS7751RVOIP_H
-
-/*
- * linux/include/asm-sh/hs7751rvoip/hs7751rvoip.h
- *
- * Copyright (C) 2000  Atom Create Engineering Co., Ltd.
- *
- * Renesas Technology Sales HS7751RVoIP support
- */
-
-/* Box specific addresses.  */
-
-#define PA_BCR		0xa4000000	/* FPGA */
-#define PA_SLICCNTR1	0xa4000006	/* SLIC PIO Control 1 */
-#define PA_SLICCNTR2	0xa4000008	/* SLIC PIO Control 2 */
-#define PA_DMACNTR	0xa400000a	/* USB DMA Control */
-#define PA_INPORTR	0xa400000c	/* Input Port Register */
-#define PA_OUTPORTR	0xa400000e	/* Output Port Reguster */
-#define PA_VERREG	0xa4000014	/* FPGA Version Register */
-
-#define PA_IDE_OFFSET	0x1f0		/* CF IDE Offset */
-
-#define IRLCNTR1	(PA_BCR + 0)	/* Interrupt Control Register1 */
-#define IRLCNTR2	(PA_BCR + 2)	/* Interrupt Control Register2 */
-#define IRLCNTR3	(PA_BCR + 4)	/* Interrupt Control Register3 */
-#define IRLCNTR4	(PA_BCR + 16)	/* Interrupt Control Register4 */
-#define IRLCNTR5	(PA_BCR + 18)	/* Interrupt Control Register5 */
-
-#define IRQ_PCIETH	6		/* PCI Ethernet IRQ */
-#define IRQ_PCIHUB	7		/* PCI Ethernet Hub IRQ */
-#define IRQ_USBCOM	8		/* USB Comunication IRQ */
-#define IRQ_USBCON	9		/* USB Connect IRQ */
-#define IRQ_USBDMA	10		/* USB DMA IRQ */
-#define IRQ_CFCARD	11		/* CF Card IRQ */
-#define IRQ_PCMCIA	12		/* PCMCIA IRQ */
-#define IRQ_PCISLOT	13		/* PCI Slot #1 IRQ */
-#define IRQ_ONHOOK1	0		/* ON HOOK1 IRQ */
-#define IRQ_OFFHOOK1	1		/* OFF HOOK1 IRQ */
-#define IRQ_ONHOOK2	2		/* ON HOOK2 IRQ */
-#define IRQ_OFFHOOK2	3		/* OFF HOOK2 IRQ */
-#define	IRQ_RINGING	4		/* Ringing IRQ */
-#define	IRQ_CODEC	5		/* CODEC IRQ */
-
-#define __IO_PREFIX	hs7751rvoip
-#include <asm/io_generic.h>
-
-/* arch/sh/boards/renesas/hs7751rvoip/irq.c */
-void init_hs7751rvoip_IRQ(void);
-
-/* arch/sh/boards/renesas/hs7751rvoip/io.c */
-void *hs7751rvoip_ioremap(unsigned long, unsigned long);
-
-#endif  /* __ASM_SH_RENESAS_HS7751RVOIP */
-- 
cgit v1.2.3-59-g8ed1b


From b87bf74724750d6e89bf86f40ba86f743607341b Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Sat, 19 Jan 2008 16:07:19 +0900
Subject: sh: Drop r7780rp_defconfig, use r7780mp_defconfig as kbuild default.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Makefile                  |    2 +-
 arch/sh/configs/r7780rp_defconfig | 1328 -------------------------------------
 2 files changed, 1 insertion(+), 1329 deletions(-)
 delete mode 100644 arch/sh/configs/r7780rp_defconfig

(limited to 'arch')

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 21cc649e1c12..6546ccc509aa 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -66,7 +66,7 @@ OBJCOPYFLAGS	:= -O binary -R .note -R .note.gnu.build-id -R .comment \
 defaultimage-$(CONFIG_SUPERH32)	:= zImage
 
 # Set some sensible Kbuild defaults
-KBUILD_DEFCONFIG	:= r7780rp_defconfig
+KBUILD_DEFCONFIG	:= r7780mp_defconfig
 KBUILD_IMAGE		:= $(defaultimage-y)
 
 #
diff --git a/arch/sh/configs/r7780rp_defconfig b/arch/sh/configs/r7780rp_defconfig
deleted file mode 100644
index 12cc01910cf8..000000000000
--- a/arch/sh/configs/r7780rp_defconfig
+++ /dev/null
@@ -1,1328 +0,0 @@
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.21-rc7
-# Tue May  1 12:28:39 2007
-#
-CONFIG_SUPERH=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_GENERIC_BUG=y
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-# CONFIG_GENERIC_TIME is not set
-CONFIG_STACKTRACE_SUPPORT=y
-CONFIG_LOCKDEP_SUPPORT=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_LOCK_KERNEL=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-# CONFIG_IPC_NS is not set
-CONFIG_SYSVIPC_SYSCTL=y
-# CONFIG_POSIX_MQUEUE is not set
-CONFIG_BSD_PROCESS_ACCT=y
-# CONFIG_BSD_PROCESS_ACCT_V3 is not set
-# CONFIG_TASKSTATS is not set
-# CONFIG_UTS_NS is not set
-# CONFIG_AUDIT is not set
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-# CONFIG_SYSFS_DEPRECATED is not set
-# CONFIG_RELAY is not set
-# CONFIG_BLK_DEV_INITRD is not set
-CONFIG_CC_OPTIMIZE_FOR_SIZE=y
-CONFIG_SYSCTL=y
-CONFIG_EMBEDDED=y
-CONFIG_UID16=y
-# CONFIG_SYSCTL_SYSCALL is not set
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_ALL is not set
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-# CONFIG_FUTEX is not set
-# CONFIG_EPOLL is not set
-CONFIG_SHMEM=y
-CONFIG_SLAB=y
-CONFIG_VM_EVENT_COUNTERS=y
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-# CONFIG_SLOB is not set
-
-#
-# Loadable module support
-#
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_MODULE_FORCE_UNLOAD is not set
-# CONFIG_MODVERSIONS is not set
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_KMOD=y
-
-#
-# Block layer
-#
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-# CONFIG_IOSCHED_AS is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
-# CONFIG_DEFAULT_AS is not set
-# CONFIG_DEFAULT_DEADLINE is not set
-# CONFIG_DEFAULT_CFQ is not set
-CONFIG_DEFAULT_NOOP=y
-CONFIG_DEFAULT_IOSCHED="noop"
-
-#
-# System type
-#
-# CONFIG_SH_SOLUTION_ENGINE is not set
-# CONFIG_SH_7722_SOLUTION_ENGINE is not set
-# CONFIG_SH_7751_SOLUTION_ENGINE is not set
-# CONFIG_SH_7780_SOLUTION_ENGINE is not set
-# CONFIG_SH_7300_SOLUTION_ENGINE is not set
-# CONFIG_SH_7343_SOLUTION_ENGINE is not set
-# CONFIG_SH_73180_SOLUTION_ENGINE is not set
-# CONFIG_SH_7751_SYSTEMH is not set
-# CONFIG_SH_HP6XX is not set
-# CONFIG_SH_SATURN is not set
-# CONFIG_SH_DREAMCAST is not set
-# CONFIG_SH_MPC1211 is not set
-# CONFIG_SH_SH03 is not set
-# CONFIG_SH_SECUREEDGE5410 is not set
-# CONFIG_SH_HS7751RVOIP is not set
-# CONFIG_SH_7710VOIPGW is not set
-# CONFIG_SH_RTS7751R2D is not set
-CONFIG_SH_HIGHLANDER=y
-# CONFIG_SH_EDOSK7705 is not set
-# CONFIG_SH_SH4202_MICRODEV is not set
-# CONFIG_SH_LANDISK is not set
-# CONFIG_SH_TITAN is not set
-# CONFIG_SH_SHMIN is not set
-# CONFIG_SH_7206_SOLUTION_ENGINE is not set
-# CONFIG_SH_7619_SOLUTION_ENGINE is not set
-# CONFIG_SH_LBOX_RE2 is not set
-# CONFIG_SH_UNKNOWN is not set
-CONFIG_SH_R7780RP=y
-# CONFIG_SH_R7780MP is not set
-# CONFIG_SH_R7785RP is not set
-
-#
-# Processor selection
-#
-CONFIG_CPU_SH4=y
-CONFIG_CPU_SH4A=y
-
-#
-# SH-2 Processor Support
-#
-# CONFIG_CPU_SUBTYPE_SH7604 is not set
-# CONFIG_CPU_SUBTYPE_SH7619 is not set
-
-#
-# SH-2A Processor Support
-#
-# CONFIG_CPU_SUBTYPE_SH7206 is not set
-
-#
-# SH-3 Processor Support
-#
-# CONFIG_CPU_SUBTYPE_SH7300 is not set
-# CONFIG_CPU_SUBTYPE_SH7705 is not set
-# CONFIG_CPU_SUBTYPE_SH7706 is not set
-# CONFIG_CPU_SUBTYPE_SH7707 is not set
-# CONFIG_CPU_SUBTYPE_SH7708 is not set
-# CONFIG_CPU_SUBTYPE_SH7709 is not set
-# CONFIG_CPU_SUBTYPE_SH7710 is not set
-# CONFIG_CPU_SUBTYPE_SH7712 is not set
-
-#
-# SH-4 Processor Support
-#
-# CONFIG_CPU_SUBTYPE_SH7750 is not set
-# CONFIG_CPU_SUBTYPE_SH7091 is not set
-# CONFIG_CPU_SUBTYPE_SH7750R is not set
-# CONFIG_CPU_SUBTYPE_SH7750S is not set
-# CONFIG_CPU_SUBTYPE_SH7751 is not set
-# CONFIG_CPU_SUBTYPE_SH7751R is not set
-# CONFIG_CPU_SUBTYPE_SH7760 is not set
-# CONFIG_CPU_SUBTYPE_SH4_202 is not set
-
-#
-# ST40 Processor Support
-#
-# CONFIG_CPU_SUBTYPE_ST40STB1 is not set
-# CONFIG_CPU_SUBTYPE_ST40GX1 is not set
-
-#
-# SH-4A Processor Support
-#
-# CONFIG_CPU_SUBTYPE_SH7770 is not set
-CONFIG_CPU_SUBTYPE_SH7780=y
-# CONFIG_CPU_SUBTYPE_SH7785 is not set
-
-#
-# SH4AL-DSP Processor Support
-#
-# CONFIG_CPU_SUBTYPE_SH73180 is not set
-# CONFIG_CPU_SUBTYPE_SH7343 is not set
-# CONFIG_CPU_SUBTYPE_SH7722 is not set
-
-#
-# Memory management options
-#
-CONFIG_MMU=y
-CONFIG_PAGE_OFFSET=0x80000000
-CONFIG_MEMORY_START=0x08000000
-CONFIG_MEMORY_SIZE=0x08000000
-# CONFIG_32BIT is not set
-CONFIG_VSYSCALL=y
-CONFIG_ARCH_FLATMEM_ENABLE=y
-CONFIG_ARCH_POPULATES_NODE_MAP=y
-CONFIG_PAGE_SIZE_4KB=y
-# CONFIG_PAGE_SIZE_8KB is not set
-# CONFIG_PAGE_SIZE_64KB is not set
-CONFIG_HUGETLB_PAGE_SIZE_64K=y
-# CONFIG_HUGETLB_PAGE_SIZE_256K is not set
-# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
-# CONFIG_HUGETLB_PAGE_SIZE_4MB is not set
-# CONFIG_HUGETLB_PAGE_SIZE_64MB is not set
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-# CONFIG_DISCONTIGMEM_MANUAL is not set
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=0
-
-#
-# Cache configuration
-#
-# CONFIG_SH_DIRECT_MAPPED is not set
-# CONFIG_SH_WRITETHROUGH is not set
-# CONFIG_SH_OCRAM is not set
-
-#
-# Processor features
-#
-CONFIG_CPU_LITTLE_ENDIAN=y
-# CONFIG_CPU_BIG_ENDIAN is not set
-CONFIG_SH_FPU=y
-# CONFIG_SH_DSP is not set
-CONFIG_SH_STORE_QUEUES=y
-CONFIG_SPECULATIVE_EXECUTION=y
-CONFIG_CPU_HAS_INTEVT=y
-CONFIG_CPU_HAS_INTC_IRQ=y
-CONFIG_CPU_HAS_SR_RB=y
-
-#
-# Timer and clock configuration
-#
-CONFIG_SH_TMU=y
-CONFIG_SH_TIMER_IRQ=28
-CONFIG_NO_IDLE_HZ=y
-CONFIG_SH_PCLK_FREQ=32000000
-
-#
-# CPU Frequency scaling
-#
-# CONFIG_CPU_FREQ is not set
-
-#
-# DMA support
-#
-# CONFIG_SH_DMA is not set
-
-#
-# Companion Chips
-#
-# CONFIG_HD6446X_SERIES is not set
-
-#
-# Additional SuperH Device Drivers
-#
-# CONFIG_HEARTBEAT is not set
-CONFIG_PUSH_SWITCH=y
-
-#
-# Kernel features
-#
-# CONFIG_HZ_100 is not set
-CONFIG_HZ_250=y
-# CONFIG_HZ_300 is not set
-# CONFIG_HZ_1000 is not set
-CONFIG_HZ=250
-CONFIG_KEXEC=y
-# CONFIG_CRASH_DUMP is not set
-# CONFIG_SMP is not set
-# CONFIG_PREEMPT_NONE is not set
-# CONFIG_PREEMPT_VOLUNTARY is not set
-CONFIG_PREEMPT=y
-CONFIG_PREEMPT_BKL=y
-
-#
-# Boot options
-#
-CONFIG_ZERO_PAGE_OFFSET=0x00001000
-CONFIG_BOOT_LINK_OFFSET=0x00800000
-# CONFIG_UBC_WAKEUP is not set
-CONFIG_CMDLINE_BOOL=y
-CONFIG_CMDLINE="mem=128M console=ttySC0,115200 root=/dev/sda1"
-
-#
-# Bus options
-#
-CONFIG_PCI=y
-CONFIG_SH_PCIDMA_NONCOHERENT=y
-CONFIG_PCI_AUTO=y
-CONFIG_PCI_AUTO_UPDATE_RESOURCES=y
-# CONFIG_PCI_DEBUG is not set
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
-# CONFIG_PCCARD is not set
-
-#
-# PCI Hotplug Support
-#
-# CONFIG_HOTPLUG_PCI is not set
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_FLAT is not set
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Power management options (EXPERIMENTAL)
-#
-# CONFIG_PM is not set
-
-#
-# Networking
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-# CONFIG_NETDEBUG is not set
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-CONFIG_UNIX=y
-CONFIG_XFRM=y
-# CONFIG_XFRM_USER is not set
-# CONFIG_XFRM_SUB_POLICY is not set
-# CONFIG_XFRM_MIGRATE is not set
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-CONFIG_IP_ADVANCED_ROUTER=y
-CONFIG_ASK_IP_FIB_HASH=y
-# CONFIG_IP_FIB_TRIE is not set
-CONFIG_IP_FIB_HASH=y
-# CONFIG_IP_MULTIPLE_TABLES is not set
-# CONFIG_IP_ROUTE_MULTIPATH is not set
-# CONFIG_IP_ROUTE_VERBOSE is not set
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-# CONFIG_IP_PNP_BOOTP is not set
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_XFRM_TUNNEL is not set
-# CONFIG_INET_TUNNEL is not set
-CONFIG_INET_XFRM_MODE_TRANSPORT=y
-CONFIG_INET_XFRM_MODE_TUNNEL=y
-CONFIG_INET_XFRM_MODE_BEET=y
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
-# CONFIG_TCP_MD5SIG is not set
-# CONFIG_IPV6 is not set
-# CONFIG_INET6_XFRM_TUNNEL is not set
-# CONFIG_INET6_TUNNEL is not set
-# CONFIG_NETWORK_SECMARK is not set
-# CONFIG_NETFILTER is not set
-
-#
-# DCCP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_DCCP is not set
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_SCTP is not set
-
-#
-# TIPC Configuration (EXPERIMENTAL)
-#
-# CONFIG_TIPC is not set
-# CONFIG_ATM is not set
-CONFIG_BRIDGE=m
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-CONFIG_LLC=m
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-# CONFIG_IEEE80211 is not set
-CONFIG_WIRELESS_EXT=y
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-CONFIG_FW_LOADER=m
-# CONFIG_DEBUG_DRIVER is not set
-# CONFIG_DEBUG_DEVRES is not set
-# CONFIG_SYS_HYPERVISOR is not set
-
-#
-# Connector - unified userspace <-> kernelspace linker
-#
-# CONFIG_CONNECTOR is not set
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-# CONFIG_PNPACPI is not set
-
-#
-# Block devices
-#
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
-# CONFIG_BLK_DEV_COW_COMMON is not set
-# CONFIG_BLK_DEV_LOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_SX8 is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_BLK_DEV_RAM_SIZE=4096
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-# CONFIG_CDROM_PKTCDVD is not set
-# CONFIG_ATA_OVER_ETH is not set
-
-#
-# Misc devices
-#
-# CONFIG_SGI_IOC4 is not set
-# CONFIG_TIFM_CORE is not set
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_RAID_ATTRS is not set
-CONFIG_SCSI=y
-# CONFIG_SCSI_TGT is not set
-# CONFIG_SCSI_NETLINK is not set
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
-CONFIG_BLK_DEV_SD=y
-# CONFIG_CHR_DEV_ST is not set
-# CONFIG_CHR_DEV_OSST is not set
-# CONFIG_BLK_DEV_SR is not set
-CONFIG_CHR_DEV_SG=m
-# CONFIG_CHR_DEV_SCH is not set
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
-# CONFIG_SCSI_MULTI_LUN is not set
-# CONFIG_SCSI_CONSTANTS is not set
-# CONFIG_SCSI_LOGGING is not set
-# CONFIG_SCSI_SCAN_ASYNC is not set
-
-#
-# SCSI Transports
-#
-# CONFIG_SCSI_SPI_ATTRS is not set
-# CONFIG_SCSI_FC_ATTRS is not set
-# CONFIG_SCSI_ISCSI_ATTRS is not set
-# CONFIG_SCSI_SAS_ATTRS is not set
-# CONFIG_SCSI_SAS_LIBSAS is not set
-
-#
-# SCSI low-level drivers
-#
-# CONFIG_ISCSI_TCP is not set
-# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
-# CONFIG_SCSI_3W_9XXX is not set
-# CONFIG_SCSI_ACARD is not set
-# CONFIG_SCSI_AACRAID is not set
-# CONFIG_SCSI_AIC7XXX is not set
-# CONFIG_SCSI_AIC7XXX_OLD is not set
-# CONFIG_SCSI_AIC79XX is not set
-# CONFIG_SCSI_AIC94XX is not set
-# CONFIG_SCSI_DPT_I2O is not set
-# CONFIG_SCSI_ARCMSR is not set
-# CONFIG_MEGARAID_NEWGEN is not set
-# CONFIG_MEGARAID_LEGACY is not set
-# CONFIG_MEGARAID_SAS is not set
-# CONFIG_SCSI_HPTIOP is not set
-# CONFIG_SCSI_DMX3191D is not set
-# CONFIG_SCSI_FUTURE_DOMAIN is not set
-# CONFIG_SCSI_IPS is not set
-# CONFIG_SCSI_INITIO is not set
-# CONFIG_SCSI_INIA100 is not set
-# CONFIG_SCSI_STEX is not set
-# CONFIG_SCSI_SYM53C8XX_2 is not set
-# CONFIG_SCSI_IPR is not set
-# CONFIG_SCSI_QLOGIC_1280 is not set
-# CONFIG_SCSI_QLA_FC is not set
-# CONFIG_SCSI_QLA_ISCSI is not set
-# CONFIG_SCSI_LPFC is not set
-# CONFIG_SCSI_DC395x is not set
-# CONFIG_SCSI_DC390T is not set
-# CONFIG_SCSI_NSP32 is not set
-# CONFIG_SCSI_DEBUG is not set
-# CONFIG_SCSI_SRP is not set
-
-#
-# Serial ATA (prod) and Parallel ATA (experimental) drivers
-#
-CONFIG_ATA=y
-# CONFIG_ATA_NONSTANDARD is not set
-# CONFIG_SATA_AHCI is not set
-# CONFIG_SATA_SVW is not set
-# CONFIG_ATA_PIIX is not set
-# CONFIG_SATA_MV is not set
-# CONFIG_SATA_NV is not set
-# CONFIG_PDC_ADMA is not set
-# CONFIG_SATA_QSTOR is not set
-# CONFIG_SATA_PROMISE is not set
-# CONFIG_SATA_SX4 is not set
-CONFIG_SATA_SIL=y
-# CONFIG_SATA_SIL24 is not set
-# CONFIG_SATA_SIS is not set
-# CONFIG_SATA_ULI is not set
-# CONFIG_SATA_VIA is not set
-# CONFIG_SATA_VITESSE is not set
-# CONFIG_SATA_INIC162X is not set
-# CONFIG_PATA_ALI is not set
-# CONFIG_PATA_AMD is not set
-# CONFIG_PATA_ARTOP is not set
-# CONFIG_PATA_ATIIXP is not set
-# CONFIG_PATA_CMD64X is not set
-# CONFIG_PATA_CS5520 is not set
-# CONFIG_PATA_CS5530 is not set
-# CONFIG_PATA_CYPRESS is not set
-# CONFIG_PATA_EFAR is not set
-# CONFIG_ATA_GENERIC is not set
-# CONFIG_PATA_HPT366 is not set
-# CONFIG_PATA_HPT37X is not set
-# CONFIG_PATA_HPT3X2N is not set
-# CONFIG_PATA_HPT3X3 is not set
-# CONFIG_PATA_IT821X is not set
-# CONFIG_PATA_IT8213 is not set
-# CONFIG_PATA_JMICRON is not set
-# CONFIG_PATA_TRIFLEX is not set
-# CONFIG_PATA_MARVELL is not set
-# CONFIG_PATA_MPIIX is not set
-# CONFIG_PATA_OLDPIIX is not set
-# CONFIG_PATA_NETCELL is not set
-# CONFIG_PATA_NS87410 is not set
-# CONFIG_PATA_OPTI is not set
-# CONFIG_PATA_OPTIDMA is not set
-# CONFIG_PATA_PDC_OLD is not set
-# CONFIG_PATA_RADISYS is not set
-# CONFIG_PATA_RZ1000 is not set
-# CONFIG_PATA_SC1200 is not set
-# CONFIG_PATA_SERVERWORKS is not set
-# CONFIG_PATA_PDC2027X is not set
-# CONFIG_PATA_SIL680 is not set
-# CONFIG_PATA_SIS is not set
-# CONFIG_PATA_VIA is not set
-# CONFIG_PATA_WINBOND is not set
-CONFIG_PATA_PLATFORM=y
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-# CONFIG_FUSION is not set
-# CONFIG_FUSION_SPI is not set
-# CONFIG_FUSION_FC is not set
-# CONFIG_FUSION_SAS is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_IEEE1394 is not set
-
-#
-# I2O device support
-#
-# CONFIG_I2O is not set
-
-#
-# Network device support
-#
-CONFIG_NETDEVICES=y
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-
-#
-# ARCnet devices
-#
-# CONFIG_ARCNET is not set
-
-#
-# PHY device support
-#
-# CONFIG_PHYLIB is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
-# CONFIG_STNIC is not set
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_CASSINI is not set
-# CONFIG_NET_VENDOR_3COM is not set
-# CONFIG_SMC91X is not set
-
-#
-# Tulip family network device support
-#
-# CONFIG_NET_TULIP is not set
-# CONFIG_HP100 is not set
-CONFIG_NET_PCI=y
-CONFIG_PCNET32=m
-# CONFIG_PCNET32_NAPI is not set
-# CONFIG_AMD8111_ETH is not set
-# CONFIG_ADAPTEC_STARFIRE is not set
-# CONFIG_B44 is not set
-# CONFIG_FORCEDETH is not set
-# CONFIG_DGRS is not set
-# CONFIG_EEPRO100 is not set
-# CONFIG_E100 is not set
-# CONFIG_FEALNX is not set
-# CONFIG_NATSEMI is not set
-# CONFIG_NE2K_PCI is not set
-CONFIG_8139CP=m
-CONFIG_8139TOO=m
-# CONFIG_8139TOO_PIO is not set
-# CONFIG_8139TOO_TUNE_TWISTER is not set
-CONFIG_8139TOO_8129=y
-# CONFIG_8139_OLD_RX_RESET is not set
-# CONFIG_SIS900 is not set
-# CONFIG_EPIC100 is not set
-# CONFIG_SUNDANCE is not set
-# CONFIG_TLAN is not set
-CONFIG_VIA_RHINE=m
-CONFIG_VIA_RHINE_MMIO=y
-# CONFIG_VIA_RHINE_NAPI is not set
-# CONFIG_SC92031 is not set
-
-#
-# Ethernet (1000 Mbit)
-#
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-CONFIG_E1000=m
-# CONFIG_E1000_NAPI is not set
-# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-CONFIG_R8169=y
-# CONFIG_R8169_NAPI is not set
-# CONFIG_SIS190 is not set
-# CONFIG_SKGE is not set
-# CONFIG_SKY2 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_VIA_VELOCITY is not set
-# CONFIG_TIGON3 is not set
-# CONFIG_BNX2 is not set
-# CONFIG_QLA3XXX is not set
-# CONFIG_ATL1 is not set
-
-#
-# Ethernet (10000 Mbit)
-#
-# CONFIG_CHELSIO_T1 is not set
-# CONFIG_CHELSIO_T3 is not set
-# CONFIG_IXGB is not set
-# CONFIG_S2IO is not set
-# CONFIG_MYRI10GE is not set
-# CONFIG_NETXEN_NIC is not set
-
-#
-# Token Ring devices
-#
-# CONFIG_TR is not set
-
-#
-# Wireless LAN (non-hamradio)
-#
-CONFIG_NET_RADIO=y
-# CONFIG_NET_WIRELESS_RTNETLINK is not set
-
-#
-# Obsolete Wireless cards support (pre-802.11)
-#
-# CONFIG_STRIP is not set
-
-#
-# Wireless 802.11b ISA/PCI cards support
-#
-# CONFIG_IPW2100 is not set
-# CONFIG_IPW2200 is not set
-CONFIG_HERMES=m
-# CONFIG_PLX_HERMES is not set
-# CONFIG_TMD_HERMES is not set
-# CONFIG_NORTEL_HERMES is not set
-# CONFIG_PCI_HERMES is not set
-# CONFIG_ATMEL is not set
-
-#
-# Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support
-#
-CONFIG_PRISM54=m
-# CONFIG_HOSTAP is not set
-CONFIG_NET_WIRELESS=y
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_NET_FC is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN is not set
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-CONFIG_INPUT_KEYBOARD=y
-CONFIG_KEYBOARD_ATKBD=y
-# CONFIG_KEYBOARD_SUNKBD is not set
-# CONFIG_KEYBOARD_LKKBD is not set
-# CONFIG_KEYBOARD_XTKBD is not set
-# CONFIG_KEYBOARD_NEWTON is not set
-# CONFIG_KEYBOARD_STOWAWAY is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-CONFIG_SERIO=y
-# CONFIG_SERIO_I8042 is not set
-# CONFIG_SERIO_SERPORT is not set
-# CONFIG_SERIO_PCIPS2 is not set
-CONFIG_SERIO_LIBPS2=y
-# CONFIG_SERIO_RAW is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-# CONFIG_VT is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_SH_SCI=y
-CONFIG_SERIAL_SH_SCI_NR_UARTS=2
-CONFIG_SERIAL_SH_SCI_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-# CONFIG_SERIAL_JSM is not set
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-CONFIG_HW_RANDOM=y
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-# CONFIG_DRM is not set
-# CONFIG_RAW_DRIVER is not set
-
-#
-# TPM devices
-#
-# CONFIG_TCG_TPM is not set
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-
-#
-# Dallas's 1-wire bus
-#
-# CONFIG_W1 is not set
-
-#
-# Hardware Monitoring support
-#
-CONFIG_HWMON=y
-# CONFIG_HWMON_VID is not set
-# CONFIG_SENSORS_ABITUGURU is not set
-# CONFIG_SENSORS_F71805F is not set
-# CONFIG_SENSORS_PC87427 is not set
-# CONFIG_SENSORS_VT1211 is not set
-# CONFIG_HWMON_DEBUG_CHIP is not set
-
-#
-# Multifunction device drivers
-#
-# CONFIG_MFD_SM501 is not set
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-# CONFIG_DVB is not set
-
-#
-# Graphics support
-#
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-# CONFIG_FB is not set
-
-#
-# Sound
-#
-CONFIG_SOUND=m
-
-#
-# Advanced Linux Sound Architecture
-#
-# CONFIG_SND is not set
-
-#
-# Open Sound System
-#
-CONFIG_SOUND_PRIME=m
-# CONFIG_OBSOLETE_OSS is not set
-# CONFIG_SOUND_BT878 is not set
-# CONFIG_SOUND_ICH is not set
-# CONFIG_SOUND_TRIDENT is not set
-# CONFIG_SOUND_MSNDCLAS is not set
-# CONFIG_SOUND_MSNDPIN is not set
-# CONFIG_SOUND_VIA82CXXX is not set
-
-#
-# HID Devices
-#
-CONFIG_HID=y
-# CONFIG_HID_DEBUG is not set
-
-#
-# USB support
-#
-CONFIG_USB_ARCH_HAS_HCD=y
-CONFIG_USB_ARCH_HAS_OHCI=y
-CONFIG_USB_ARCH_HAS_EHCI=y
-# CONFIG_USB is not set
-
-#
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
-#
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# MMC/SD Card support
-#
-# CONFIG_MMC is not set
-
-#
-# LED devices
-#
-# CONFIG_NEW_LEDS is not set
-
-#
-# LED drivers
-#
-
-#
-# LED Triggers
-#
-
-#
-# InfiniBand support
-#
-# CONFIG_INFINIBAND is not set
-
-#
-# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
-#
-
-#
-# Real Time Clock
-#
-CONFIG_RTC_LIB=y
-CONFIG_RTC_CLASS=y
-CONFIG_RTC_HCTOSYS=y
-CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
-# CONFIG_RTC_DEBUG is not set
-
-#
-# RTC interfaces
-#
-CONFIG_RTC_INTF_SYSFS=y
-CONFIG_RTC_INTF_PROC=y
-CONFIG_RTC_INTF_DEV=y
-# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
-
-#
-# RTC drivers
-#
-# CONFIG_RTC_DRV_DS1553 is not set
-# CONFIG_RTC_DRV_DS1742 is not set
-# CONFIG_RTC_DRV_M48T86 is not set
-CONFIG_RTC_DRV_SH=y
-# CONFIG_RTC_DRV_TEST is not set
-# CONFIG_RTC_DRV_V3020 is not set
-
-#
-# DMA Engine support
-#
-# CONFIG_DMA_ENGINE is not set
-
-#
-# DMA Clients
-#
-
-#
-# DMA Devices
-#
-
-#
-# Auxiliary Display support
-#
-
-#
-# Virtualization
-#
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
-# CONFIG_EXT4DEV_FS is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-CONFIG_FS_MBCACHE=y
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-CONFIG_FS_POSIX_ACL=y
-# CONFIG_XFS_FS is not set
-# CONFIG_GFS2_FS is not set
-# CONFIG_OCFS2_FS is not set
-CONFIG_MINIX_FS=y
-# CONFIG_ROMFS_FS is not set
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-CONFIG_FUSE_FS=m
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-CONFIG_FAT_FS=y
-CONFIG_MSDOS_FS=y
-CONFIG_VFAT_FS=y
-CONFIG_FAT_DEFAULT_CODEPAGE=437
-CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
-CONFIG_NTFS_FS=y
-# CONFIG_NTFS_DEBUG is not set
-CONFIG_NTFS_RW=y
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-# CONFIG_TMPFS_POSIX_ACL is not set
-CONFIG_HUGETLBFS=y
-CONFIG_HUGETLB_PAGE=y
-CONFIG_RAMFS=y
-CONFIG_CONFIGFS_FS=m
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V3_ACL is not set
-CONFIG_NFS_V4=y
-# CONFIG_NFS_DIRECTIO is not set
-CONFIG_NFSD=y
-CONFIG_NFSD_V3=y
-# CONFIG_NFSD_V3_ACL is not set
-CONFIG_NFSD_V4=y
-CONFIG_NFSD_TCP=y
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-CONFIG_EXPORTFS=y
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=y
-CONFIG_SUNRPC_GSS=y
-CONFIG_RPCSEC_GSS_KRB5=y
-# CONFIG_RPCSEC_GSS_SPKM3 is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-# CONFIG_9P_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-CONFIG_NLS=y
-CONFIG_NLS_DEFAULT="iso8859-1"
-CONFIG_NLS_CODEPAGE_437=y
-# CONFIG_NLS_CODEPAGE_737 is not set
-# CONFIG_NLS_CODEPAGE_775 is not set
-# CONFIG_NLS_CODEPAGE_850 is not set
-# CONFIG_NLS_CODEPAGE_852 is not set
-# CONFIG_NLS_CODEPAGE_855 is not set
-# CONFIG_NLS_CODEPAGE_857 is not set
-# CONFIG_NLS_CODEPAGE_860 is not set
-# CONFIG_NLS_CODEPAGE_861 is not set
-# CONFIG_NLS_CODEPAGE_862 is not set
-# CONFIG_NLS_CODEPAGE_863 is not set
-# CONFIG_NLS_CODEPAGE_864 is not set
-# CONFIG_NLS_CODEPAGE_865 is not set
-# CONFIG_NLS_CODEPAGE_866 is not set
-# CONFIG_NLS_CODEPAGE_869 is not set
-# CONFIG_NLS_CODEPAGE_936 is not set
-# CONFIG_NLS_CODEPAGE_950 is not set
-CONFIG_NLS_CODEPAGE_932=y
-# CONFIG_NLS_CODEPAGE_949 is not set
-# CONFIG_NLS_CODEPAGE_874 is not set
-# CONFIG_NLS_ISO8859_8 is not set
-# CONFIG_NLS_CODEPAGE_1250 is not set
-# CONFIG_NLS_CODEPAGE_1251 is not set
-# CONFIG_NLS_ASCII is not set
-CONFIG_NLS_ISO8859_1=y
-# CONFIG_NLS_ISO8859_2 is not set
-# CONFIG_NLS_ISO8859_3 is not set
-# CONFIG_NLS_ISO8859_4 is not set
-# CONFIG_NLS_ISO8859_5 is not set
-# CONFIG_NLS_ISO8859_6 is not set
-# CONFIG_NLS_ISO8859_7 is not set
-# CONFIG_NLS_ISO8859_9 is not set
-# CONFIG_NLS_ISO8859_13 is not set
-# CONFIG_NLS_ISO8859_14 is not set
-# CONFIG_NLS_ISO8859_15 is not set
-# CONFIG_NLS_KOI8_R is not set
-# CONFIG_NLS_KOI8_U is not set
-# CONFIG_NLS_UTF8 is not set
-
-#
-# Distributed Lock Manager
-#
-# CONFIG_DLM is not set
-
-#
-# Profiling support
-#
-CONFIG_PROFILING=y
-CONFIG_OPROFILE=m
-
-#
-# Kernel hacking
-#
-CONFIG_TRACE_IRQFLAGS_SUPPORT=y
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_MUST_CHECK=y
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_UNUSED_SYMBOLS is not set
-CONFIG_DEBUG_FS=y
-# CONFIG_HEADERS_CHECK is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_SHIRQ is not set
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_DETECT_SOFTLOCKUP=y
-# CONFIG_SCHEDSTATS is not set
-# CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
-# CONFIG_DEBUG_PREEMPT is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_MUTEXES is not set
-# CONFIG_DEBUG_LOCK_ALLOC is not set
-# CONFIG_PROVE_LOCKING is not set
-# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
-# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-# CONFIG_DEBUG_KOBJECT is not set
-CONFIG_DEBUG_BUGVERBOSE=y
-CONFIG_DEBUG_INFO=y
-# CONFIG_DEBUG_VM is not set
-# CONFIG_DEBUG_LIST is not set
-# CONFIG_FRAME_POINTER is not set
-CONFIG_FORCED_INLINING=y
-# CONFIG_RCU_TORTURE_TEST is not set
-# CONFIG_FAULT_INJECTION is not set
-CONFIG_SH_STANDARD_BIOS=y
-# CONFIG_EARLY_SCIF_CONSOLE is not set
-CONFIG_EARLY_PRINTK=y
-CONFIG_DEBUG_STACKOVERFLOW=y
-# CONFIG_DEBUG_STACK_USAGE is not set
-# CONFIG_4KSTACKS is not set
-# CONFIG_SH_KGDB is not set
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-CONFIG_CRYPTO=y
-CONFIG_CRYPTO_ALGAPI=y
-CONFIG_CRYPTO_BLKCIPHER=y
-CONFIG_CRYPTO_HASH=y
-CONFIG_CRYPTO_MANAGER=y
-CONFIG_CRYPTO_HMAC=y
-# CONFIG_CRYPTO_XCBC is not set
-# CONFIG_CRYPTO_NULL is not set
-# CONFIG_CRYPTO_MD4 is not set
-CONFIG_CRYPTO_MD5=y
-# CONFIG_CRYPTO_SHA1 is not set
-# CONFIG_CRYPTO_SHA256 is not set
-# CONFIG_CRYPTO_SHA512 is not set
-# CONFIG_CRYPTO_WP512 is not set
-# CONFIG_CRYPTO_TGR192 is not set
-# CONFIG_CRYPTO_GF128MUL is not set
-CONFIG_CRYPTO_ECB=m
-CONFIG_CRYPTO_CBC=y
-CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_LRW is not set
-CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_FCRYPT is not set
-# CONFIG_CRYPTO_BLOWFISH is not set
-# CONFIG_CRYPTO_TWOFISH is not set
-# CONFIG_CRYPTO_SERPENT is not set
-# CONFIG_CRYPTO_AES is not set
-# CONFIG_CRYPTO_CAST5 is not set
-# CONFIG_CRYPTO_CAST6 is not set
-# CONFIG_CRYPTO_TEA is not set
-# CONFIG_CRYPTO_ARC4 is not set
-# CONFIG_CRYPTO_KHAZAD is not set
-# CONFIG_CRYPTO_ANUBIS is not set
-# CONFIG_CRYPTO_DEFLATE is not set
-# CONFIG_CRYPTO_MICHAEL_MIC is not set
-# CONFIG_CRYPTO_CRC32C is not set
-# CONFIG_CRYPTO_CAMELLIA is not set
-# CONFIG_CRYPTO_TEST is not set
-
-#
-# Hardware crypto devices
-#
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC16 is not set
-CONFIG_CRC32=y
-# CONFIG_LIBCRC32C is not set
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
-- 
cgit v1.2.3-59-g8ed1b


From c2439a0890f51dd5f1ca45cf4b0dbe2ce131d533 Mon Sep 17 00:00:00 2001
From: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Date: Mon, 21 Jan 2008 17:59:52 +0900
Subject: sh: Kill off hs7751rvoip reference from arch/sh/Kconfig.

Remove reference to board deleted in commit 758e06ded4c48024835ef0a14627afcde2e25929

Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 85bd9ac6f5e0..e94430b42474 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -518,7 +518,6 @@ config SH_CAYMAN
 
 endmenu
 
-source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
 source "arch/sh/boards/renesas/r7780rp/Kconfig"
 source "arch/sh/boards/magicpanelr2/Kconfig"
-- 
cgit v1.2.3-59-g8ed1b


From 1b1e037a8974801cb3e1da3281ca3a88cbec3de8 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 22 Jan 2008 09:57:27 +0900
Subject: sh: Kill off -traditional for linker script.

Some of Sam's new work in the kbuild queue depend on ## concatenation
within the linker script, which doesn't work when -traditional is
enabled. -traditional is a legacy remnant anyways, and we no longer
require it for anything, so kill it off completely.

Noted-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Makefile | 2 --
 1 file changed, 2 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 6546ccc509aa..4cc71094efe7 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -153,8 +153,6 @@ drivers-$(CONFIG_OPROFILE)	+= arch/sh/oprofile/
 
 boot := arch/sh/boot
 
-CPPFLAGS_vmlinux.lds := -traditional
-
 incdir-prefix	:= $(srctree)/include/asm-sh/
 
 #	Update machine arch and proc symlinks if something which affects
-- 
cgit v1.2.3-59-g8ed1b


From 773c7bd69434a356af4363a61889ef975b256e32 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@computergmbh.de>
Date: Wed, 23 Jan 2008 12:47:48 +0900
Subject: sh: constify function pointer tables

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/landisk/gio.c | 2 +-
 arch/sh/kernel/setup.c       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/boards/landisk/gio.c b/arch/sh/boards/landisk/gio.c
index a37643d002b2..17025080db35 100644
--- a/arch/sh/boards/landisk/gio.c
+++ b/arch/sh/boards/landisk/gio.c
@@ -121,7 +121,7 @@ static int gio_ioctl(struct inode *inode, struct file *filp,
 	return 0;
 }
 
-static struct file_operations gio_fops = {
+static const struct file_operations gio_fops = {
 	.owner = THIS_MODULE,
 	.open = gio_open,	/* open */
 	.release = gio_close,	/* release */
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 9cf1d2e998bf..855cdf9d85b1 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -427,7 +427,7 @@ static void *c_next(struct seq_file *m, void *v, loff_t *pos)
 static void c_stop(struct seq_file *m, void *v)
 {
 }
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
 	.start	= c_start,
 	.next	= c_next,
 	.stop	= c_stop,
-- 
cgit v1.2.3-59-g8ed1b


From 4862ec073975e28f432f164405e60fa6f5c9d071 Mon Sep 17 00:00:00 2001
From: Nicholas Beck <nbeck@mpc-data.co.uk>
Date: Wed, 23 Jan 2008 12:50:51 +0900
Subject: sh: Add support for SDK7780 board.

Add support for Renesas Technology Europe SDK7780 board.

Signed-off-by: Nicholas Beck <nbeck@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig                         |    9 +
 arch/sh/Makefile                        |    1 +
 arch/sh/boards/renesas/sdk7780/Kconfig  |   23 +
 arch/sh/boards/renesas/sdk7780/Makefile |    5 +
 arch/sh/boards/renesas/sdk7780/irq.c    |   46 +
 arch/sh/boards/renesas/sdk7780/setup.c  |  109 +++
 arch/sh/configs/sdk7780_defconfig       | 1394 +++++++++++++++++++++++++++++++
 arch/sh/drivers/pci/Makefile            |    1 +
 arch/sh/drivers/pci/fixups-sdk7780.c    |   59 ++
 arch/sh/drivers/pci/ops-sdk7780.c       |   73 ++
 include/asm-sh/sdk7780.h                |   81 ++
 11 files changed, 1801 insertions(+)
 create mode 100644 arch/sh/boards/renesas/sdk7780/Kconfig
 create mode 100644 arch/sh/boards/renesas/sdk7780/Makefile
 create mode 100644 arch/sh/boards/renesas/sdk7780/irq.c
 create mode 100644 arch/sh/boards/renesas/sdk7780/setup.c
 create mode 100644 arch/sh/configs/sdk7780_defconfig
 create mode 100644 arch/sh/drivers/pci/fixups-sdk7780.c
 create mode 100644 arch/sh/drivers/pci/ops-sdk7780.c
 create mode 100644 include/asm-sh/sdk7780.h

(limited to 'arch')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index e94430b42474..1cd9c8fd927d 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -455,6 +455,14 @@ config SH_RTS7751R2D
 	  Select RTS7751R2D if configuring for a Renesas Technology
 	  Sales SH-Graphics board.
 
+config SH_SDK7780
+	bool "SDK7780R3"
+	depends on CPU_SUBTYPE_SH7780
+	select SYS_SUPPORTS_PCI
+	help
+	  Select SDK7780 if configuring for a Renesas SH7780 SDK7780R3
+	  evaluation board.
+
 config SH_HIGHLANDER
 	bool "Highlander"
 	depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
@@ -520,6 +528,7 @@ endmenu
 
 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
 source "arch/sh/boards/renesas/r7780rp/Kconfig"
+source "arch/sh/boards/renesas/sdk7780/Kconfig"
 source "arch/sh/boards/magicpanelr2/Kconfig"
 
 menu "Timer and clock configuration"
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 4cc71094efe7..17fc36186bf4 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -116,6 +116,7 @@ machdir-$(CONFIG_SH_RTS7751R2D)			+= renesas/rts7751r2d
 machdir-$(CONFIG_SH_7751_SYSTEMH)		+= renesas/systemh
 machdir-$(CONFIG_SH_EDOSK7705)			+= renesas/edosk7705
 machdir-$(CONFIG_SH_HIGHLANDER)			+= renesas/r7780rp
+machdir-$(CONFIG_SH_SDK7780)			+= renesas/sdk7780
 machdir-$(CONFIG_SH_7710VOIPGW)			+= renesas/sh7710voipgw
 machdir-$(CONFIG_SH_X3PROTO)			+= renesas/x3proto
 machdir-$(CONFIG_SH_SH4202_MICRODEV)		+= superh/microdev
diff --git a/arch/sh/boards/renesas/sdk7780/Kconfig b/arch/sh/boards/renesas/sdk7780/Kconfig
new file mode 100644
index 000000000000..e4f5b6985be1
--- /dev/null
+++ b/arch/sh/boards/renesas/sdk7780/Kconfig
@@ -0,0 +1,23 @@
+if SH_SDK7780
+
+choice
+	prompt "SDK7780 options"
+	default SH_SDK7780_BASE
+
+config SH_SDK7780_STANDALONE
+	bool "SDK7780 board support"
+	depends on CPU_SUBTYPE_SH7780
+	help
+	  Selecting this option will enable support for the
+	  standalone version of the SDK7780. If in doubt, say Y.
+
+config SH_SDK7780_BASE
+	bool "SDK7780 with base-board support"
+	depends on CPU_SUBTYPE_SH7780
+	help
+	  Selecting this option will enable support for the expansion
+	  baseboard devices. If in doubt, say Y.
+
+endchoice
+
+endif
diff --git a/arch/sh/boards/renesas/sdk7780/Makefile b/arch/sh/boards/renesas/sdk7780/Makefile
new file mode 100644
index 000000000000..3d8f0befc35d
--- /dev/null
+++ b/arch/sh/boards/renesas/sdk7780/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the SDK7780 specific parts of the kernel
+#
+obj-y	 := setup.o irq.o
+
diff --git a/arch/sh/boards/renesas/sdk7780/irq.c b/arch/sh/boards/renesas/sdk7780/irq.c
new file mode 100644
index 000000000000..87cdc578f6ff
--- /dev/null
+++ b/arch/sh/boards/renesas/sdk7780/irq.c
@@ -0,0 +1,46 @@
+/*
+ * linux/arch/sh/boards/renesas/sdk7780/irq.c
+ *
+ * Renesas Technology Europe SDK7780 Support.
+ *
+ * Copyright (C) 2008  Nicholas Beck <nbeck@mpc-data.co.uk>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <asm/sdk7780.h>
+
+enum {
+	UNUSED = 0,
+	/* board specific interrupt sources */
+	SMC91C111,	/* Ethernet controller */
+};
+
+static struct intc_vect fpga_vectors[] __initdata = {
+	INTC_IRQ(SMC91C111, IRQ_ETHERNET),
+};
+
+static struct intc_mask_reg fpga_mask_registers[] __initdata = {
+	{ 0, FPGA_IRQ0MR, 16,
+	  { 0, 0, 0, 0, 0, 0, 0, 0,
+	    0, 0, 0, SMC91C111, 0, 0, 0, 0 } },
+};
+
+static DECLARE_INTC_DESC(fpga_intc_desc, "sdk7780-irq", fpga_vectors,
+			 NULL, fpga_mask_registers, NULL, NULL);
+
+void __init init_sdk7780_IRQ(void)
+{
+	printk(KERN_INFO "Using SDK7780 interrupt controller.\n");
+
+	ctrl_outw(0xFFFF, FPGA_IRQ0MR);
+	/* Setup IRL 0-3 */
+	ctrl_outw(0x0003, FPGA_IMSR);
+	plat_irq_setup_pins(IRQ_MODE_IRL3210);
+
+	register_intc_controller(&fpga_intc_desc);
+}
diff --git a/arch/sh/boards/renesas/sdk7780/setup.c b/arch/sh/boards/renesas/sdk7780/setup.c
new file mode 100644
index 000000000000..5df32f201870
--- /dev/null
+++ b/arch/sh/boards/renesas/sdk7780/setup.c
@@ -0,0 +1,109 @@
+/*
+ * arch/sh/boards/renesas/sdk7780/setup.c
+ *
+ * Renesas Solutions SH7780 SDK Support
+ * Copyright (C) 2008 Nicholas Beck <nbeck@mpc-data.co.uk>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/pata_platform.h>
+#include <asm/machvec.h>
+#include <asm/sdk7780.h>
+#include <asm/heartbeat.h>
+#include <asm/io.h>
+#include <asm/addrspace.h>
+
+#define GPIO_PECR        0xFFEA0008
+
+//* Heartbeat */
+static struct heartbeat_data heartbeat_data = {
+	.regsize = 16,
+};
+
+static struct resource heartbeat_resources[] = {
+	[0] = {
+		.start  = PA_LED,
+		.end    = PA_LED,
+		.flags  = IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device heartbeat_device = {
+	.name           = "heartbeat",
+	.id             = -1,
+	.dev = {
+		.platform_data = &heartbeat_data,
+	},
+	.num_resources  = ARRAY_SIZE(heartbeat_resources),
+	.resource       = heartbeat_resources,
+};
+
+/* SMC91x */
+static struct resource smc91x_eth_resources[] = {
+	[0] = {
+		.name   = "smc91x-regs" ,
+		.start  = PA_LAN + 0x300,
+		.end    = PA_LAN + 0x300 + 0x10 ,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = IRQ_ETHERNET,
+		.end    = IRQ_ETHERNET,
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device smc91x_eth_device = {
+	.name           = "smc91x",
+	.id             = 0,
+	.dev = {
+		.dma_mask               = NULL,         /* don't use dma */
+		.coherent_dma_mask      = 0xffffffff,
+	},
+	.num_resources  = ARRAY_SIZE(smc91x_eth_resources),
+	.resource       = smc91x_eth_resources,
+};
+
+static struct platform_device *sdk7780_devices[] __initdata = {
+	&heartbeat_device,
+	&smc91x_eth_device,
+};
+
+static int __init sdk7780_devices_setup(void)
+{
+	return platform_add_devices(sdk7780_devices,
+		ARRAY_SIZE(sdk7780_devices));
+}
+device_initcall(sdk7780_devices_setup);
+
+static void __init sdk7780_setup(char **cmdline_p)
+{
+	u16 ver = ctrl_inw(FPGA_FPVERR);
+	u16 dateStamp = ctrl_inw(FPGA_FPDATER);
+
+	printk(KERN_INFO "Renesas Technology Europe SDK7780 support.\n");
+	printk(KERN_INFO "Board version: %d (revision %d), "
+			 "FPGA version: %d (revision %d), datestamp : %d\n",
+			 (ver >> 12) & 0xf, (ver >> 8) & 0xf,
+			 (ver >>  4) & 0xf, ver & 0xf,
+			 dateStamp);
+
+	/* Setup pin mux'ing for PCIC */
+	ctrl_outw(0x0000, GPIO_PECR);
+}
+
+/*
+ * The Machine Vector
+ */
+static struct sh_machine_vector mv_se7780 __initmv = {
+	.mv_name        = "Renesas SDK7780-R3" ,
+	.mv_setup		= sdk7780_setup,
+	.mv_nr_irqs		= 111,
+	.mv_init_irq	= init_sdk7780_IRQ,
+};
+
diff --git a/arch/sh/configs/sdk7780_defconfig b/arch/sh/configs/sdk7780_defconfig
new file mode 100644
index 000000000000..bb9bcd6591ab
--- /dev/null
+++ b/arch/sh/configs/sdk7780_defconfig
@@ -0,0 +1,1394 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.24-rc7
+# Tue Jan 22 11:34:03 2008
+#
+CONFIG_SUPERH=y
+CONFIG_SUPERH32=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_SYS_SUPPORTS_PCI=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_NO_VIRT_TO_BUS=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOCK_KERNEL=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION="_SDK7780"
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SWAP=y
+CONFIG_SYSVIPC=y
+CONFIG_SYSVIPC_SYSCTL=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_BSD_PROCESS_ACCT=y
+# CONFIG_BSD_PROCESS_ACCT_V3 is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+# CONFIG_AUDIT is not set
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=18
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
+CONFIG_SYSFS_DEPRECATED=y
+CONFIG_RELAY=y
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+CONFIG_UID16=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS=y
+CONFIG_KALLSYMS_ALL=y
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
+# CONFIG_SLOB is not set
+CONFIG_SLABINFO=y
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+CONFIG_KMOD=y
+CONFIG_BLOCK=y
+CONFIG_LBD=y
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+CONFIG_DEFAULT_AS=y
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="anticipatory"
+
+#
+# System type
+#
+CONFIG_CPU_SH4=y
+CONFIG_CPU_SH4A=y
+# CONFIG_CPU_SUBTYPE_SH7619 is not set
+# CONFIG_CPU_SUBTYPE_SH7203 is not set
+# CONFIG_CPU_SUBTYPE_SH7206 is not set
+# CONFIG_CPU_SUBTYPE_SH7263 is not set
+# CONFIG_CPU_SUBTYPE_SH7705 is not set
+# CONFIG_CPU_SUBTYPE_SH7706 is not set
+# CONFIG_CPU_SUBTYPE_SH7707 is not set
+# CONFIG_CPU_SUBTYPE_SH7708 is not set
+# CONFIG_CPU_SUBTYPE_SH7709 is not set
+# CONFIG_CPU_SUBTYPE_SH7710 is not set
+# CONFIG_CPU_SUBTYPE_SH7712 is not set
+# CONFIG_CPU_SUBTYPE_SH7720 is not set
+# CONFIG_CPU_SUBTYPE_SH7721 is not set
+# CONFIG_CPU_SUBTYPE_SH7750 is not set
+# CONFIG_CPU_SUBTYPE_SH7091 is not set
+# CONFIG_CPU_SUBTYPE_SH7750R is not set
+# CONFIG_CPU_SUBTYPE_SH7750S is not set
+# CONFIG_CPU_SUBTYPE_SH7751 is not set
+# CONFIG_CPU_SUBTYPE_SH7751R is not set
+# CONFIG_CPU_SUBTYPE_SH7760 is not set
+# CONFIG_CPU_SUBTYPE_SH4_202 is not set
+# CONFIG_CPU_SUBTYPE_SH7763 is not set
+# CONFIG_CPU_SUBTYPE_SH7770 is not set
+CONFIG_CPU_SUBTYPE_SH7780=y
+# CONFIG_CPU_SUBTYPE_SH7785 is not set
+# CONFIG_CPU_SUBTYPE_SHX3 is not set
+# CONFIG_CPU_SUBTYPE_SH7343 is not set
+# CONFIG_CPU_SUBTYPE_SH7722 is not set
+# CONFIG_CPU_SUBTYPE_SH5_101 is not set
+# CONFIG_CPU_SUBTYPE_SH5_103 is not set
+
+#
+# Memory management options
+#
+CONFIG_QUICKLIST=y
+CONFIG_MMU=y
+CONFIG_PAGE_OFFSET=0x80000000
+CONFIG_MEMORY_START=0x08000000
+CONFIG_MEMORY_SIZE=0x08000000
+CONFIG_29BIT=y
+# CONFIG_PMB is not set
+CONFIG_VSYSCALL=y
+CONFIG_ARCH_FLATMEM_ENABLE=y
+CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_SPARSEMEM_DEFAULT=y
+CONFIG_MAX_ACTIVE_REGIONS=1
+CONFIG_ARCH_POPULATES_NODE_MAP=y
+CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_PAGE_SIZE_4KB=y
+# CONFIG_PAGE_SIZE_8KB is not set
+# CONFIG_PAGE_SIZE_64KB is not set
+CONFIG_HUGETLB_PAGE_SIZE_64K=y
+# CONFIG_HUGETLB_PAGE_SIZE_256K is not set
+# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
+# CONFIG_HUGETLB_PAGE_SIZE_4MB is not set
+# CONFIG_HUGETLB_PAGE_SIZE_64MB is not set
+# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+CONFIG_SPARSEMEM_STATIC=y
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+CONFIG_RESOURCES_64BIT=y
+CONFIG_ZONE_DMA_FLAG=0
+CONFIG_NR_QUICK=2
+
+#
+# Cache configuration
+#
+# CONFIG_SH_DIRECT_MAPPED is not set
+CONFIG_CACHE_WRITEBACK=y
+# CONFIG_CACHE_WRITETHROUGH is not set
+# CONFIG_CACHE_OFF is not set
+
+#
+# Processor features
+#
+CONFIG_CPU_LITTLE_ENDIAN=y
+# CONFIG_CPU_BIG_ENDIAN is not set
+CONFIG_SH_FPU=y
+CONFIG_SH_STORE_QUEUES=y
+# CONFIG_SPECULATIVE_EXECUTION is not set
+CONFIG_CPU_HAS_INTEVT=y
+CONFIG_CPU_HAS_SR_RB=y
+CONFIG_CPU_HAS_FPU=y
+
+#
+# Board support
+#
+# CONFIG_SH_7780_SOLUTION_ENGINE is not set
+CONFIG_SH_SDK7780=y
+# CONFIG_SH_HIGHLANDER is not set
+# CONFIG_SH_SDK7780_STANDALONE is not set
+CONFIG_SH_SDK7780_BASE=y
+
+#
+# Timer and clock configuration
+#
+CONFIG_SH_TMU=y
+CONFIG_SH_TIMER_IRQ=28
+CONFIG_SH_PCLK_FREQ=33333333
+CONFIG_TICK_ONESHOT=y
+# CONFIG_NO_HZ is not set
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+
+#
+# CPU Frequency scaling
+#
+# CONFIG_CPU_FREQ is not set
+
+#
+# DMA support
+#
+CONFIG_SH_DMA_API=y
+CONFIG_SH_DMA=y
+CONFIG_NR_ONCHIP_DMA_CHANNELS=12
+# CONFIG_NR_DMA_CHANNELS_BOOL is not set
+
+#
+# Companion Chips
+#
+
+#
+# Additional SuperH Device Drivers
+#
+CONFIG_HEARTBEAT=y
+# CONFIG_PUSH_SWITCH is not set
+
+#
+# Kernel features
+#
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=250
+# CONFIG_KEXEC is not set
+# CONFIG_CRASH_DUMP is not set
+# CONFIG_PREEMPT_NONE is not set
+# CONFIG_PREEMPT_VOLUNTARY is not set
+CONFIG_PREEMPT=y
+CONFIG_PREEMPT_BKL=y
+CONFIG_GUSA=y
+
+#
+# Boot options
+#
+CONFIG_ZERO_PAGE_OFFSET=0x00001000
+CONFIG_BOOT_LINK_OFFSET=0x01800000
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="mem=128M console=tty0 console=ttySC0,115200 ip=bootp root=/dev/nfs nfsroot=192.168.0.1:/home/rootfs"
+
+#
+# Bus options
+#
+CONFIG_PCI=y
+CONFIG_SH_PCIDMA_NONCOHERENT=y
+CONFIG_PCI_AUTO=y
+CONFIG_PCI_AUTO_UPDATE_RESOURCES=y
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+# CONFIG_PCI_LEGACY is not set
+CONFIG_PCI_DEBUG=y
+CONFIG_PCCARD=y
+# CONFIG_PCMCIA_DEBUG is not set
+CONFIG_PCMCIA=y
+CONFIG_PCMCIA_LOAD_CIS=y
+CONFIG_PCMCIA_IOCTL=y
+CONFIG_CARDBUS=y
+
+#
+# PC-card bridges
+#
+CONFIG_YENTA=y
+CONFIG_YENTA_O2=y
+CONFIG_YENTA_RICOH=y
+CONFIG_YENTA_TI=y
+CONFIG_YENTA_ENE_TUNE=y
+CONFIG_YENTA_TOSHIBA=y
+# CONFIG_PD6729 is not set
+# CONFIG_I82092 is not set
+CONFIG_PCCARD_NONSTATIC=y
+CONFIG_HOTPLUG_PCI=y
+# CONFIG_HOTPLUG_PCI_FAKE is not set
+# CONFIG_HOTPLUG_PCI_CPCI is not set
+# CONFIG_HOTPLUG_PCI_SHPC is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+CONFIG_XFRM=y
+# CONFIG_XFRM_USER is not set
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_ASK_IP_FIB_HASH=y
+# CONFIG_IP_FIB_TRIE is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_MULTIPLE_TABLES is not set
+# CONFIG_IP_ROUTE_MULTIPATH is not set
+# CONFIG_IP_ROUTE_VERBOSE is not set
+CONFIG_IP_PNP=y
+# CONFIG_IP_PNP_DHCP is not set
+CONFIG_IP_PNP_BOOTP=y
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_IP_MROUTE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+CONFIG_INET_TUNNEL=y
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+CONFIG_IPV6=y
+# CONFIG_IPV6_PRIVACY is not set
+# CONFIG_IPV6_ROUTER_PREF is not set
+# CONFIG_IPV6_OPTIMISTIC_DAD is not set
+# CONFIG_INET6_AH is not set
+# CONFIG_INET6_ESP is not set
+# CONFIG_INET6_IPCOMP is not set
+# CONFIG_IPV6_MIP6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+CONFIG_INET6_XFRM_MODE_TRANSPORT=y
+CONFIG_INET6_XFRM_MODE_TUNNEL=y
+# CONFIG_INET6_XFRM_MODE_BEET is not set
+# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
+CONFIG_IPV6_SIT=y
+# CONFIG_IPV6_TUNNEL is not set
+# CONFIG_IPV6_MULTIPLE_TABLES is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+CONFIG_NET_SCHED=y
+
+#
+# Queueing/Scheduling
+#
+# CONFIG_NET_SCH_CBQ is not set
+# CONFIG_NET_SCH_HTB is not set
+# CONFIG_NET_SCH_HFSC is not set
+# CONFIG_NET_SCH_PRIO is not set
+# CONFIG_NET_SCH_RR is not set
+# CONFIG_NET_SCH_RED is not set
+# CONFIG_NET_SCH_SFQ is not set
+# CONFIG_NET_SCH_TEQL is not set
+# CONFIG_NET_SCH_TBF is not set
+# CONFIG_NET_SCH_GRED is not set
+# CONFIG_NET_SCH_DSMARK is not set
+# CONFIG_NET_SCH_NETEM is not set
+# CONFIG_NET_SCH_INGRESS is not set
+
+#
+# Classification
+#
+# CONFIG_NET_CLS_BASIC is not set
+# CONFIG_NET_CLS_TCINDEX is not set
+# CONFIG_NET_CLS_ROUTE4 is not set
+# CONFIG_NET_CLS_FW is not set
+# CONFIG_NET_CLS_U32 is not set
+# CONFIG_NET_CLS_RSVP is not set
+# CONFIG_NET_CLS_RSVP6 is not set
+# CONFIG_NET_EMATCH is not set
+# CONFIG_NET_CLS_ACT is not set
+# CONFIG_NET_CLS_POLICE is not set
+CONFIG_NET_SCH_FIFO=y
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+CONFIG_FW_LOADER=y
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+# CONFIG_MTD is not set
+CONFIG_PARPORT=y
+# CONFIG_PARPORT_PC is not set
+# CONFIG_PARPORT_GSC is not set
+# CONFIG_PARPORT_AX88796 is not set
+# CONFIG_PARPORT_1284 is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_CPQ_CISS_DA is not set
+# CONFIG_BLK_DEV_DAC960 is not set
+# CONFIG_BLK_DEV_UMEM is not set
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=y
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_SX8 is not set
+# CONFIG_BLK_DEV_UB is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+# CONFIG_MISC_DEVICES is not set
+CONFIG_IDE=y
+CONFIG_IDE_MAX_HWIFS=4
+CONFIG_BLK_DEV_IDE=y
+
+#
+# Please see Documentation/ide.txt for help/info on IDE drives
+#
+# CONFIG_BLK_DEV_IDE_SATA is not set
+CONFIG_BLK_DEV_IDEDISK=y
+CONFIG_IDEDISK_MULTI_MODE=y
+# CONFIG_BLK_DEV_IDECS is not set
+# CONFIG_BLK_DEV_DELKIN is not set
+CONFIG_BLK_DEV_IDECD=y
+# CONFIG_BLK_DEV_IDETAPE is not set
+# CONFIG_BLK_DEV_IDEFLOPPY is not set
+# CONFIG_BLK_DEV_IDESCSI is not set
+# CONFIG_IDE_TASK_IOCTL is not set
+CONFIG_IDE_PROC_FS=y
+
+#
+# IDE chipset support/bugfixes
+#
+CONFIG_IDE_GENERIC=y
+CONFIG_BLK_DEV_PLATFORM=y
+
+#
+# PCI IDE chipsets support
+#
+CONFIG_BLK_DEV_IDEPCI=y
+# CONFIG_IDEPCI_SHARE_IRQ is not set
+CONFIG_IDEPCI_PCIBUS_ORDER=y
+# CONFIG_BLK_DEV_OFFBOARD is not set
+CONFIG_BLK_DEV_GENERIC=y
+# CONFIG_BLK_DEV_OPTI621 is not set
+# CONFIG_BLK_DEV_AEC62XX is not set
+# CONFIG_BLK_DEV_ALI15X3 is not set
+# CONFIG_BLK_DEV_AMD74XX is not set
+# CONFIG_BLK_DEV_CMD64X is not set
+# CONFIG_BLK_DEV_TRIFLEX is not set
+# CONFIG_BLK_DEV_CY82C693 is not set
+# CONFIG_BLK_DEV_CS5520 is not set
+# CONFIG_BLK_DEV_CS5530 is not set
+# CONFIG_BLK_DEV_HPT34X is not set
+# CONFIG_BLK_DEV_HPT366 is not set
+# CONFIG_BLK_DEV_JMICRON is not set
+# CONFIG_BLK_DEV_SC1200 is not set
+# CONFIG_BLK_DEV_PIIX is not set
+# CONFIG_BLK_DEV_IT8213 is not set
+# CONFIG_BLK_DEV_IT821X is not set
+# CONFIG_BLK_DEV_NS87415 is not set
+# CONFIG_BLK_DEV_PDC202XX_OLD is not set
+# CONFIG_BLK_DEV_PDC202XX_NEW is not set
+# CONFIG_BLK_DEV_SVWKS is not set
+# CONFIG_BLK_DEV_SIIMAGE is not set
+# CONFIG_BLK_DEV_SLC90E66 is not set
+# CONFIG_BLK_DEV_TRM290 is not set
+# CONFIG_BLK_DEV_VIA82CXXX is not set
+# CONFIG_BLK_DEV_TC86C001 is not set
+# CONFIG_IDE_ARM is not set
+# CONFIG_BLK_DEV_IDEDMA is not set
+# CONFIG_IDE_ARCH_OBSOLETE_INIT is not set
+# CONFIG_BLK_DEV_HD is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+CONFIG_SCSI=y
+CONFIG_SCSI_DMA=y
+# CONFIG_SCSI_TGT is not set
+CONFIG_SCSI_NETLINK=y
+CONFIG_SCSI_PROC_FS=y
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
+CONFIG_BLK_DEV_SD=y
+# CONFIG_CHR_DEV_ST is not set
+# CONFIG_CHR_DEV_OSST is not set
+CONFIG_BLK_DEV_SR=y
+# CONFIG_BLK_DEV_SR_VENDOR is not set
+CONFIG_CHR_DEV_SG=y
+# CONFIG_CHR_DEV_SCH is not set
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
+# CONFIG_SCSI_MULTI_LUN is not set
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+CONFIG_SCSI_WAIT_SCAN=m
+
+#
+# SCSI Transports
+#
+CONFIG_SCSI_SPI_ATTRS=y
+CONFIG_SCSI_FC_ATTRS=y
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+# CONFIG_SCSI_SRP_ATTRS is not set
+CONFIG_SCSI_LOWLEVEL=y
+# CONFIG_ISCSI_TCP is not set
+# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
+# CONFIG_SCSI_3W_9XXX is not set
+# CONFIG_SCSI_ACARD is not set
+# CONFIG_SCSI_AACRAID is not set
+# CONFIG_SCSI_AIC7XXX is not set
+# CONFIG_SCSI_AIC7XXX_OLD is not set
+# CONFIG_SCSI_AIC79XX is not set
+# CONFIG_SCSI_AIC94XX is not set
+# CONFIG_SCSI_ARCMSR is not set
+# CONFIG_MEGARAID_NEWGEN is not set
+# CONFIG_MEGARAID_LEGACY is not set
+# CONFIG_MEGARAID_SAS is not set
+# CONFIG_SCSI_HPTIOP is not set
+# CONFIG_SCSI_DMX3191D is not set
+# CONFIG_SCSI_FUTURE_DOMAIN is not set
+# CONFIG_SCSI_IPS is not set
+# CONFIG_SCSI_INITIO is not set
+# CONFIG_SCSI_INIA100 is not set
+# CONFIG_SCSI_STEX is not set
+# CONFIG_SCSI_SYM53C8XX_2 is not set
+# CONFIG_SCSI_IPR is not set
+# CONFIG_SCSI_QLOGIC_1280 is not set
+# CONFIG_SCSI_QLA_FC is not set
+# CONFIG_SCSI_QLA_ISCSI is not set
+# CONFIG_SCSI_LPFC is not set
+# CONFIG_SCSI_DC395x is not set
+# CONFIG_SCSI_DC390T is not set
+# CONFIG_SCSI_NSP32 is not set
+# CONFIG_SCSI_DEBUG is not set
+# CONFIG_SCSI_SRP is not set
+# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
+CONFIG_ATA=y
+# CONFIG_ATA_NONSTANDARD is not set
+# CONFIG_SATA_AHCI is not set
+# CONFIG_SATA_SVW is not set
+# CONFIG_ATA_PIIX is not set
+# CONFIG_SATA_MV is not set
+# CONFIG_SATA_NV is not set
+# CONFIG_PDC_ADMA is not set
+# CONFIG_SATA_QSTOR is not set
+# CONFIG_SATA_PROMISE is not set
+# CONFIG_SATA_SX4 is not set
+# CONFIG_SATA_SIL is not set
+# CONFIG_SATA_SIL24 is not set
+# CONFIG_SATA_SIS is not set
+# CONFIG_SATA_ULI is not set
+# CONFIG_SATA_VIA is not set
+# CONFIG_SATA_VITESSE is not set
+# CONFIG_SATA_INIC162X is not set
+# CONFIG_PATA_ALI is not set
+# CONFIG_PATA_AMD is not set
+# CONFIG_PATA_ARTOP is not set
+# CONFIG_PATA_ATIIXP is not set
+# CONFIG_PATA_CMD640_PCI is not set
+# CONFIG_PATA_CMD64X is not set
+# CONFIG_PATA_CS5520 is not set
+# CONFIG_PATA_CS5530 is not set
+# CONFIG_PATA_CYPRESS is not set
+# CONFIG_PATA_EFAR is not set
+# CONFIG_ATA_GENERIC is not set
+# CONFIG_PATA_HPT366 is not set
+# CONFIG_PATA_HPT37X is not set
+# CONFIG_PATA_HPT3X2N is not set
+# CONFIG_PATA_HPT3X3 is not set
+# CONFIG_PATA_IT821X is not set
+# CONFIG_PATA_IT8213 is not set
+# CONFIG_PATA_JMICRON is not set
+# CONFIG_PATA_TRIFLEX is not set
+# CONFIG_PATA_MARVELL is not set
+# CONFIG_PATA_MPIIX is not set
+# CONFIG_PATA_OLDPIIX is not set
+# CONFIG_PATA_NETCELL is not set
+# CONFIG_PATA_NS87410 is not set
+# CONFIG_PATA_NS87415 is not set
+# CONFIG_PATA_OPTI is not set
+# CONFIG_PATA_OPTIDMA is not set
+# CONFIG_PATA_PCMCIA is not set
+# CONFIG_PATA_PDC_OLD is not set
+# CONFIG_PATA_RADISYS is not set
+# CONFIG_PATA_RZ1000 is not set
+# CONFIG_PATA_SC1200 is not set
+# CONFIG_PATA_SERVERWORKS is not set
+# CONFIG_PATA_PDC2027X is not set
+# CONFIG_PATA_SIL680 is not set
+# CONFIG_PATA_SIS is not set
+# CONFIG_PATA_VIA is not set
+# CONFIG_PATA_WINBOND is not set
+# CONFIG_PATA_PLATFORM is not set
+CONFIG_MD=y
+# CONFIG_BLK_DEV_MD is not set
+CONFIG_BLK_DEV_DM=y
+# CONFIG_DM_DEBUG is not set
+# CONFIG_DM_CRYPT is not set
+# CONFIG_DM_SNAPSHOT is not set
+# CONFIG_DM_MIRROR is not set
+# CONFIG_DM_ZERO is not set
+# CONFIG_DM_MULTIPATH is not set
+# CONFIG_DM_DELAY is not set
+# CONFIG_DM_UEVENT is not set
+# CONFIG_FUSION is not set
+
+#
+# IEEE 1394 (FireWire) support
+#
+# CONFIG_FIREWIRE is not set
+# CONFIG_IEEE1394 is not set
+# CONFIG_I2O is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_ARCNET is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+# CONFIG_AX88796 is not set
+# CONFIG_STNIC is not set
+# CONFIG_HAPPYMEAL is not set
+# CONFIG_SUNGEM is not set
+# CONFIG_CASSINI is not set
+# CONFIG_NET_VENDOR_3COM is not set
+CONFIG_SMC91X=y
+# CONFIG_NET_TULIP is not set
+# CONFIG_HP100 is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_NET_PCI is not set
+# CONFIG_B44 is not set
+# CONFIG_NET_POCKET is not set
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+# CONFIG_TR is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+
+#
+# USB Network Adapters
+#
+# CONFIG_USB_CATC is not set
+# CONFIG_USB_KAWETH is not set
+# CONFIG_USB_PEGASUS is not set
+# CONFIG_USB_RTL8150 is not set
+# CONFIG_USB_USBNET is not set
+# CONFIG_NET_PCMCIA is not set
+# CONFIG_WAN is not set
+# CONFIG_FDDI is not set
+# CONFIG_HIPPI is not set
+# CONFIG_PLIP is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_NET_FC is not set
+# CONFIG_SHAPER is not set
+CONFIG_NETCONSOLE=y
+# CONFIG_NETCONSOLE_DYNAMIC is not set
+CONFIG_NETPOLL=y
+# CONFIG_NETPOLL_TRAP is not set
+CONFIG_NET_POLL_CONTROLLER=y
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+CONFIG_INPUT_MOUSEDEV=y
+CONFIG_INPUT_MOUSEDEV_PSAUX=y
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_JOYDEV is not set
+CONFIG_INPUT_EVDEV=y
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+CONFIG_INPUT_KEYBOARD=y
+CONFIG_KEYBOARD_ATKBD=y
+# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_KEYBOARD_LKKBD is not set
+# CONFIG_KEYBOARD_XTKBD is not set
+# CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_KEYBOARD_STOWAWAY is not set
+CONFIG_INPUT_MOUSE=y
+CONFIG_MOUSE_PS2=y
+CONFIG_MOUSE_PS2_ALPS=y
+CONFIG_MOUSE_PS2_LOGIPS2PP=y
+CONFIG_MOUSE_PS2_SYNAPTICS=y
+CONFIG_MOUSE_PS2_LIFEBOOK=y
+CONFIG_MOUSE_PS2_TRACKPOINT=y
+# CONFIG_MOUSE_PS2_TOUCHKIT is not set
+# CONFIG_MOUSE_SERIAL is not set
+# CONFIG_MOUSE_APPLETOUCH is not set
+# CONFIG_MOUSE_VSXXXAA is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+CONFIG_SERIO=y
+# CONFIG_SERIO_I8042 is not set
+# CONFIG_SERIO_SERPORT is not set
+# CONFIG_SERIO_PARKBD is not set
+# CONFIG_SERIO_PCIPS2 is not set
+CONFIG_SERIO_LIBPS2=y
+# CONFIG_SERIO_RAW is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_SH_SCI=y
+CONFIG_SERIAL_SH_SCI_NR_UARTS=2
+CONFIG_SERIAL_SH_SCI_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_JSM is not set
+CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_PRINTER is not set
+# CONFIG_PPDEV is not set
+# CONFIG_IPMI_HANDLER is not set
+CONFIG_HW_RANDOM=y
+# CONFIG_R3964 is not set
+# CONFIG_APPLICOM is not set
+
+#
+# PCMCIA character devices
+#
+# CONFIG_SYNCLINK_CS is not set
+# CONFIG_CARDMAN_4000 is not set
+# CONFIG_CARDMAN_4040 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+CONFIG_DEVPORT=y
+# CONFIG_I2C is not set
+
+#
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+# CONFIG_W1 is not set
+CONFIG_POWER_SUPPLY=y
+# CONFIG_POWER_SUPPLY_DEBUG is not set
+# CONFIG_PDA_POWER is not set
+# CONFIG_BATTERY_DS2760 is not set
+# CONFIG_HWMON is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+CONFIG_SSB=y
+CONFIG_SSB_PCIHOST_POSSIBLE=y
+CONFIG_SSB_PCIHOST=y
+CONFIG_SSB_PCMCIAHOST_POSSIBLE=y
+# CONFIG_SSB_PCMCIAHOST is not set
+# CONFIG_SSB_SILENT is not set
+# CONFIG_SSB_DEBUG is not set
+CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
+CONFIG_SSB_DRIVER_PCICORE=y
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_DAB is not set
+
+#
+# Graphics support
+#
+# CONFIG_DRM is not set
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+CONFIG_FB=y
+# CONFIG_FIRMWARE_EDID is not set
+# CONFIG_FB_DDC is not set
+# CONFIG_FB_CFB_FILLRECT is not set
+# CONFIG_FB_CFB_COPYAREA is not set
+# CONFIG_FB_CFB_IMAGEBLIT is not set
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_SYS_FOPS is not set
+CONFIG_FB_DEFERRED_IO=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+# CONFIG_FB_MODE_HELPERS is not set
+# CONFIG_FB_TILEBLITTING is not set
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_CIRRUS is not set
+# CONFIG_FB_PM2 is not set
+# CONFIG_FB_CYBER2000 is not set
+# CONFIG_FB_ASILIANT is not set
+# CONFIG_FB_IMSTT is not set
+# CONFIG_FB_S1D13XXX is not set
+# CONFIG_FB_NVIDIA is not set
+# CONFIG_FB_RIVA is not set
+# CONFIG_FB_MATROX is not set
+# CONFIG_FB_RADEON is not set
+# CONFIG_FB_ATY128 is not set
+# CONFIG_FB_ATY is not set
+# CONFIG_FB_S3 is not set
+# CONFIG_FB_SAVAGE is not set
+# CONFIG_FB_SIS is not set
+# CONFIG_FB_NEOMAGIC is not set
+# CONFIG_FB_KYRO is not set
+# CONFIG_FB_3DFX is not set
+# CONFIG_FB_VOODOO1 is not set
+# CONFIG_FB_VT8623 is not set
+# CONFIG_FB_TRIDENT is not set
+# CONFIG_FB_ARK is not set
+# CONFIG_FB_PM3 is not set
+# CONFIG_FB_VIRTUAL is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+CONFIG_DISPLAY_SUPPORT=y
+
+#
+# Display hardware drivers
+#
+
+#
+# Console display driver support
+#
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+# CONFIG_FONTS is not set
+CONFIG_FONT_8x8=y
+CONFIG_FONT_8x16=y
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_MONO=y
+CONFIG_LOGO_LINUX_VGA16=y
+CONFIG_LOGO_LINUX_CLUT224=y
+CONFIG_LOGO_SUPERH_MONO=y
+CONFIG_LOGO_SUPERH_VGA16=y
+CONFIG_LOGO_SUPERH_CLUT224=y
+
+#
+# Sound
+#
+CONFIG_SOUND=y
+
+#
+# Advanced Linux Sound Architecture
+#
+# CONFIG_SND is not set
+
+#
+# Open Sound System
+#
+CONFIG_SOUND_PRIME=y
+# CONFIG_SOUND_TRIDENT is not set
+# CONFIG_SOUND_MSNDCLAS is not set
+# CONFIG_SOUND_MSNDPIN is not set
+CONFIG_HID_SUPPORT=y
+CONFIG_HID=y
+# CONFIG_HID_DEBUG is not set
+# CONFIG_HIDRAW is not set
+
+#
+# USB Input Devices
+#
+CONFIG_USB_HID=y
+# CONFIG_USB_HIDINPUT_POWERBOOK is not set
+# CONFIG_HID_FF is not set
+# CONFIG_USB_HIDDEV is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
+CONFIG_USB_ARCH_HAS_EHCI=y
+CONFIG_USB=y
+CONFIG_USB_DEBUG=y
+
+#
+# Miscellaneous USB options
+#
+CONFIG_USB_DEVICEFS=y
+# CONFIG_USB_DEVICE_CLASS is not set
+# CONFIG_USB_DYNAMIC_MINORS is not set
+# CONFIG_USB_OTG is not set
+
+#
+# USB Host Controller Drivers
+#
+CONFIG_USB_EHCI_HCD=y
+# CONFIG_USB_EHCI_SPLIT_ISO is not set
+# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
+# CONFIG_USB_EHCI_TT_NEWSCHED is not set
+# CONFIG_USB_ISP116X_HCD is not set
+# CONFIG_USB_OHCI_HCD is not set
+# CONFIG_USB_UHCI_HCD is not set
+# CONFIG_USB_SL811_HCD is not set
+# CONFIG_USB_R8A66597_HCD is not set
+
+#
+# USB Device Class drivers
+#
+# CONFIG_USB_ACM is not set
+CONFIG_USB_PRINTER=y
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# may also be needed; see USB_STORAGE Help for more information
+#
+CONFIG_USB_STORAGE=y
+# CONFIG_USB_STORAGE_DEBUG is not set
+# CONFIG_USB_STORAGE_DATAFAB is not set
+# CONFIG_USB_STORAGE_FREECOM is not set
+# CONFIG_USB_STORAGE_ISD200 is not set
+# CONFIG_USB_STORAGE_DPCM is not set
+# CONFIG_USB_STORAGE_USBAT is not set
+# CONFIG_USB_STORAGE_SDDR09 is not set
+# CONFIG_USB_STORAGE_SDDR55 is not set
+# CONFIG_USB_STORAGE_JUMPSHOT is not set
+# CONFIG_USB_STORAGE_ALAUDA is not set
+# CONFIG_USB_STORAGE_ONETOUCH is not set
+# CONFIG_USB_STORAGE_KARMA is not set
+# CONFIG_USB_LIBUSUAL is not set
+
+#
+# USB Imaging devices
+#
+# CONFIG_USB_MDC800 is not set
+# CONFIG_USB_MICROTEK is not set
+CONFIG_USB_MON=y
+
+#
+# USB port drivers
+#
+# CONFIG_USB_USS720 is not set
+
+#
+# USB Serial Converter support
+#
+# CONFIG_USB_SERIAL is not set
+
+#
+# USB Miscellaneous drivers
+#
+# CONFIG_USB_EMI62 is not set
+# CONFIG_USB_EMI26 is not set
+# CONFIG_USB_ADUTUX is not set
+# CONFIG_USB_AUERSWALD is not set
+# CONFIG_USB_RIO500 is not set
+# CONFIG_USB_LEGOTOWER is not set
+# CONFIG_USB_LCD is not set
+# CONFIG_USB_BERRY_CHARGE is not set
+# CONFIG_USB_LED is not set
+# CONFIG_USB_CYPRESS_CY7C63 is not set
+# CONFIG_USB_CYTHERM is not set
+# CONFIG_USB_PHIDGET is not set
+# CONFIG_USB_IDMOUSE is not set
+# CONFIG_USB_FTDI_ELAN is not set
+# CONFIG_USB_APPLEDISPLAY is not set
+# CONFIG_USB_SISUSBVGA is not set
+# CONFIG_USB_LD is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_IOWARRIOR is not set
+# CONFIG_USB_TEST is not set
+
+#
+# USB DSL modem support
+#
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+# CONFIG_MMC is not set
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+
+#
+# LED drivers
+#
+
+#
+# LED Triggers
+#
+# CONFIG_LEDS_TRIGGERS is not set
+# CONFIG_INFINIBAND is not set
+# CONFIG_RTC_CLASS is not set
+# CONFIG_AUXDISPLAY is not set
+
+#
+# Userspace I/O
+#
+# CONFIG_UIO is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+# CONFIG_EXT2_FS_SECURITY is not set
+# CONFIG_EXT2_FS_XIP is not set
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_XATTR=y
+CONFIG_EXT3_FS_POSIX_ACL=y
+# CONFIG_EXT3_FS_SECURITY is not set
+# CONFIG_EXT4DEV_FS is not set
+CONFIG_JBD=y
+CONFIG_FS_MBCACHE=y
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+CONFIG_FS_POSIX_ACL=y
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+CONFIG_MINIX_FS=y
+# CONFIG_ROMFS_FS is not set
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_QUOTA is not set
+CONFIG_DNOTIFY=y
+# CONFIG_AUTOFS_FS is not set
+CONFIG_AUTOFS4_FS=y
+# CONFIG_FUSE_FS is not set
+CONFIG_GENERIC_ACL=y
+
+#
+# CD-ROM/DVD Filesystems
+#
+CONFIG_ISO9660_FS=y
+# CONFIG_JOLIET is not set
+# CONFIG_ZISOFS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+CONFIG_FAT_FS=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_FAT_DEFAULT_CODEPAGE=437
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
+CONFIG_NTFS_FS=y
+CONFIG_NTFS_DEBUG=y
+CONFIG_NTFS_RW=y
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+# CONFIG_PROC_KCORE is not set
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_HUGETLBFS=y
+CONFIG_HUGETLB_PAGE=y
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFS_DIRECTIO is not set
+CONFIG_NFSD=y
+CONFIG_NFSD_V3=y
+# CONFIG_NFSD_V3_ACL is not set
+# CONFIG_NFSD_V4 is not set
+CONFIG_NFSD_TCP=y
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_EXPORTFS=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_SUNRPC_BIND34 is not set
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+CONFIG_NLS=y
+CONFIG_NLS_DEFAULT="iso8859-1"
+CONFIG_NLS_CODEPAGE_437=y
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+# CONFIG_NLS_CODEPAGE_850 is not set
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+# CONFIG_NLS_ISO8859_2 is not set
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+CONFIG_NLS_ISO8859_15=y
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+CONFIG_NLS_UTF8=y
+# CONFIG_DLM is not set
+# CONFIG_INSTRUMENTATION is not set
+
+#
+# Kernel hacking
+#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_UNUSED_SYMBOLS=y
+# CONFIG_DEBUG_FS is not set
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_DETECT_SOFTLOCKUP=y
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_SCHEDSTATS is not set
+CONFIG_TIMER_STATS=y
+# CONFIG_SLUB_DEBUG_ON is not set
+CONFIG_DEBUG_PREEMPT=y
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_LOCK_ALLOC is not set
+# CONFIG_PROVE_LOCKING is not set
+# CONFIG_LOCK_STAT is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_INFO=y
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
+# CONFIG_FRAME_POINTER is not set
+# CONFIG_FORCED_INLINING is not set
+# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_SAMPLES is not set
+CONFIG_SH_STANDARD_BIOS=y
+# CONFIG_EARLY_SCIF_CONSOLE is not set
+# CONFIG_EARLY_PRINTK is not set
+# CONFIG_DEBUG_BOOTMEM is not set
+CONFIG_DEBUG_STACKOVERFLOW=y
+# CONFIG_DEBUG_STACK_USAGE is not set
+# CONFIG_4KSTACKS is not set
+# CONFIG_IRQSTACKS is not set
+# CONFIG_SH_KGDB is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_ALGAPI=y
+# CONFIG_CRYPTO_MANAGER is not set
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_MD4 is not set
+CONFIG_CRYPTO_MD5=y
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_GF128MUL is not set
+# CONFIG_CRYPTO_ECB is not set
+# CONFIG_CRYPTO_CBC is not set
+# CONFIG_CRYPTO_PCBC is not set
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_XTS is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+CONFIG_CRYPTO_DES=y
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_AES is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_SEED is not set
+# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_TEST is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+CONFIG_CRYPTO_HW=y
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile
index 1086cf111f8b..7bf2a2c823f3 100644
--- a/arch/sh/drivers/pci/Makefile
+++ b/arch/sh/drivers/pci/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_SH_SECUREEDGE5410)		+= ops-snapgear.o
 obj-$(CONFIG_SH_RTS7751R2D)		+= ops-rts7751r2d.o fixups-rts7751r2d.o
 obj-$(CONFIG_SH_SH03)			+= ops-sh03.o fixups-sh03.o
 obj-$(CONFIG_SH_HIGHLANDER)		+= ops-r7780rp.o fixups-r7780rp.o
+obj-$(CONFIG_SH_SDK7780)		+= ops-sdk7780.o fixups-sdk7780.o
 obj-$(CONFIG_SH_TITAN)			+= ops-titan.o
 obj-$(CONFIG_SH_LANDISK)		+= ops-landisk.o
 obj-$(CONFIG_SH_LBOX_RE2)		+= ops-lboxre2.o fixups-lboxre2.o
diff --git a/arch/sh/drivers/pci/fixups-sdk7780.c b/arch/sh/drivers/pci/fixups-sdk7780.c
new file mode 100644
index 000000000000..2f8863099dd1
--- /dev/null
+++ b/arch/sh/drivers/pci/fixups-sdk7780.c
@@ -0,0 +1,59 @@
+/*
+ * arch/sh/drivers/pci/fixups-sdk7780.c
+ *
+ * PCI fixups for the SDK7780SE03
+ *
+ * Copyright (C) 2003  Lineo uSolutions, Inc.
+ * Copyright (C) 2004 - 2006  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/pci.h>
+#include "pci-sh4.h"
+#include <asm/io.h>
+
+int pci_fixup_pcic(void)
+{
+	ctrl_outl(0x00000001, SH7780_PCI_VCR2);
+
+	/* Enable all interrupts, so we know what to fix */
+	pci_write_reg(0x0000C3FF, SH7780_PCIIMR);
+	pci_write_reg(0x0000380F, SH7780_PCIAINTM);
+
+	/* Set up standard PCI config registers */
+	pci_write_reg(0xFB00, SH7780_PCISTATUS);
+	pci_write_reg(0x0047, SH7780_PCICMD);
+	pci_write_reg(0x00, SH7780_PCIPIF);
+	pci_write_reg(0x00, SH7780_PCISUB);
+	pci_write_reg(0x06, SH7780_PCIBCC);
+	pci_write_reg(0x1912, SH7780_PCISVID);
+	pci_write_reg(0x0001, SH7780_PCISID);
+
+	pci_write_reg(0x08000000, SH7780_PCIMBAR0);	/* PCI */
+	pci_write_reg(0x08000000, SH7780_PCILAR0);	/* SHwy */
+	pci_write_reg(0x07F00001, SH7780_PCILSR);	/* size 128M w/ MBAR */
+
+	pci_write_reg(0x00000000, SH7780_PCIMBAR1);
+	pci_write_reg(0x00000000, SH7780_PCILAR1);
+	pci_write_reg(0x00000000, SH7780_PCILSR1);
+
+	pci_write_reg(0xAB000801, SH7780_PCIIBAR);
+
+	/*
+	 * Set the MBR so PCI address is one-to-one with window,
+	 * meaning all calls go straight through... use ifdef to
+	 * catch erroneous assumption.
+	 */
+	pci_write_reg(0xFD000000 , SH7780_PCIMBR0);
+	pci_write_reg(0x00FC0000 , SH7780_PCIMBMR0);	/* 16M */
+
+	/* Set IOBR for window containing area specified in pci.h */
+	pci_write_reg(PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE-1), SH7780_PCIIOBR);
+	pci_write_reg((SH7780_PCI_IO_SIZE-1) & (7 << 18), SH7780_PCIIOBMR);
+
+	pci_write_reg(0xA5000C01, SH7780_PCICR);
+
+	return 0;
+}
diff --git a/arch/sh/drivers/pci/ops-sdk7780.c b/arch/sh/drivers/pci/ops-sdk7780.c
new file mode 100644
index 000000000000..66a9b4047f26
--- /dev/null
+++ b/arch/sh/drivers/pci/ops-sdk7780.c
@@ -0,0 +1,73 @@
+/*
+ * linux/arch/sh/drivers/pci/ops-sdk7780.c
+ *
+ * Copyright (C) 2006  Nobuhiro Iwamatsu
+ *
+ * PCI initialization for the SDK7780SE03
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <asm/sdk7780.h>
+#include <asm/io.h>
+#include "pci-sh4.h"
+
+/* IDSEL [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] */
+static char sdk7780_irq_tab[4][16] __initdata = {
+	/* INTA */
+	{ 65, 68, 67, 68, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
+	/* INTB */
+	{ 66, 65, -1, 65, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
+	/* INTC */
+	{ 67, 66, -1, 66, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
+	/* INTD */
+	{ 68, 67, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
+};
+
+int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
+{
+       return sdk7780_irq_tab[pin-1][slot];
+}
+
+static struct resource sdk7780_io_resource = {
+	.name	= "SH7780_IO",
+	.start	= SH7780_PCI_IO_BASE,
+	.end	= SH7780_PCI_IO_BASE + SH7780_PCI_IO_SIZE - 1,
+	.flags	= IORESOURCE_IO
+};
+
+static struct resource sdk7780_mem_resource = {
+	.name	= "SH7780_mem",
+	.start	= SH7780_PCI_MEMORY_BASE,
+	.end	= SH7780_PCI_MEMORY_BASE + SH7780_PCI_MEM_SIZE - 1,
+	.flags	= IORESOURCE_MEM
+};
+
+struct pci_channel board_pci_channels[] = {
+	{ &sh4_pci_ops, &sdk7780_io_resource, &sdk7780_mem_resource, 0, 0xff },
+	{ NULL, NULL, NULL, 0, 0 },
+};
+EXPORT_SYMBOL(board_pci_channels);
+
+static struct sh4_pci_address_map sdk7780_pci_map = {
+	.window0	= {
+		.base	= SH7780_CS2_BASE_ADDR,
+		.size	= 0x04000000,
+	},
+	.window1	= {
+		.base	= SH7780_CS3_BASE_ADDR,
+		.size	= 0x04000000,
+	},
+	.flags	= SH4_PCIC_NO_RESET,
+};
+
+int __init pcibios_init_platform(void)
+{
+	printk(KERN_INFO "SH7780 PCI: Finished initializing PCI controller\n");
+	return sh7780_pcic_init(&sdk7780_pci_map);
+}
diff --git a/include/asm-sh/sdk7780.h b/include/asm-sh/sdk7780.h
new file mode 100644
index 000000000000..697dc865f21b
--- /dev/null
+++ b/include/asm-sh/sdk7780.h
@@ -0,0 +1,81 @@
+#ifndef __ASM_SH_RENESAS_SDK7780_H
+#define __ASM_SH_RENESAS_SDK7780_H
+
+/*
+ * linux/include/asm-sh/sdk7780.h
+ *
+ * Renesas Solutions SH7780 SDK Support
+ * Copyright (C) 2008 Nicholas Beck <nbeck@mpc-data.co.uk>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <asm/addrspace.h>
+
+/* Box specific addresses.  */
+#define SE_AREA0_WIDTH	4		/* Area0: 32bit */
+#define PA_ROM			0xa0000000	/* EPROM */
+#define PA_ROM_SIZE		0x00400000	/* EPROM size 4M byte */
+#define PA_FROM			0xa0800000	/* Flash-ROM */
+#define PA_FROM_SIZE	0x00400000	/* Flash-ROM size 4M byte */
+#define PA_EXT1			0xa4000000
+#define PA_EXT1_SIZE	0x04000000
+#define PA_SDRAM		0xa8000000	/* DDR-SDRAM(Area2/3) 128MB */
+#define PA_SDRAM_SIZE	0x08000000
+
+#define PA_EXT4			0xb0000000
+#define PA_EXT4_SIZE	0x04000000
+#define PA_EXT_USER		PA_EXT4		/* User Expansion Space */
+
+#define PA_PERIPHERAL	PA_AREA5_IO
+
+/* SRAM/Reserved */
+#define PA_RESERVED	(PA_PERIPHERAL + 0)
+/* FPGA base address */
+#define PA_FPGA		(PA_PERIPHERAL + 0x01000000)
+/* SMC LAN91C111 */
+#define PA_LAN		(PA_PERIPHERAL + 0x01800000)
+
+
+#define FPGA_SRSTR      (PA_FPGA + 0x000)	/* System reset */
+#define FPGA_IRQ0SR     (PA_FPGA + 0x010)	/* IRQ0 status */
+#define FPGA_IRQ0MR     (PA_FPGA + 0x020)	/* IRQ0 mask */
+#define FPGA_BDMR       (PA_FPGA + 0x030)	/* Board operating mode */
+#define FPGA_INTT0PRTR  (PA_FPGA + 0x040)	/* Interrupt test mode0 port */
+#define FPGA_INTT0SELR  (PA_FPGA + 0x050)	/* Int. test mode0 select */
+#define FPGA_INTT1POLR  (PA_FPGA + 0x060)	/* Int. test mode0 polarity */
+#define FPGA_NMIR       (PA_FPGA + 0x070)	/* NMI source */
+#define FPGA_NMIMR      (PA_FPGA + 0x080)	/* NMI mask */
+#define FPGA_IRQR       (PA_FPGA + 0x090)	/* IRQX source */
+#define FPGA_IRQMR      (PA_FPGA + 0x0A0)	/* IRQX mask */
+#define FPGA_SLEDR      (PA_FPGA + 0x0B0)	/* LED control */
+#define PA_LED			FPGA_SLEDR
+#define FPGA_MAPSWR     (PA_FPGA + 0x0C0)	/* Map switch */
+#define FPGA_FPVERR     (PA_FPGA + 0x0D0)	/* FPGA version */
+#define FPGA_FPDATER    (PA_FPGA + 0x0E0)	/* FPGA date */
+#define FPGA_RSE        (PA_FPGA + 0x100)	/* Reset source */
+#define FPGA_EASR       (PA_FPGA + 0x110)	/* External area select */
+#define FPGA_SPER       (PA_FPGA + 0x120)	/* Serial port enable */
+#define FPGA_IMSR       (PA_FPGA + 0x130)	/* Interrupt mode select */
+#define FPGA_PCIMR      (PA_FPGA + 0x140)	/* PCI Mode */
+#define FPGA_DIPSWMR    (PA_FPGA + 0x150)	/* DIPSW monitor */
+#define FPGA_FPODR      (PA_FPGA + 0x160)	/* Output port data */
+#define FPGA_ATAESR     (PA_FPGA + 0x170)	/* ATA extended bus status */
+#define FPGA_IRQPOLR    (PA_FPGA + 0x180)	/* IRQx polarity */
+
+
+#define SDK7780_NR_IRL			15
+/* IDE/ATA interrupt */
+#define IRQ_CFCARD				14
+/* SMC interrupt */
+#define IRQ_ETHERNET			6
+
+
+/* arch/sh/boards/renesas/sdk7780/irq.c */
+void init_sdk7780_IRQ(void);
+
+#define __IO_PREFIX		sdk7780
+#include <asm/io_generic.h>
+
+#endif  /* __ASM_SH_RENESAS_SDK7780_H */
-- 
cgit v1.2.3-59-g8ed1b


From f93e97eaead5c50af35d73cca7301ebbfdff116c Mon Sep 17 00:00:00 2001
From: Magnus Damm <magnus.damm@gmail.com>
Date: Thu, 24 Jan 2008 18:35:10 +0900
Subject: sh: declared coherent memory support V2

This patch adds declared coherent memory support to the sh architecture. All
functions are based on the x86 implementation. Header files are adjusted to
use the new functions instead of the former consistent_alloc() code.

This version includes the few changes what were included in the fix patch
together with modifications based on feedback from Paul.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/consistent.c      | 174 +++++++++++++++++++++++++++++++------------
 include/asm-sh/dma-mapping.h |  56 +++++---------
 2 files changed, 148 insertions(+), 82 deletions(-)

(limited to 'arch')

diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 65ad30031ad7..7b2131c9eeda 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -3,6 +3,8 @@
  *
  * Copyright (C) 2004 - 2007  Paul Mundt
  *
+ * Declared coherent memory functions based on arch/x86/kernel/pci-dma_32.c
+ *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
@@ -13,66 +15,146 @@
 #include <asm/addrspace.h>
 #include <asm/io.h>
 
-void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle)
-{
-	struct page *page, *end, *free;
-	void *ret, *vp;
-	int order;
-
-	size = PAGE_ALIGN(size);
-	order = get_order(size);
+struct dma_coherent_mem {
+	void		*virt_base;
+	u32		device_base;
+	int		size;
+	int		flags;
+	unsigned long	*bitmap;
+};
 
-	page = alloc_pages(gfp, order);
-	if (!page)
-		return NULL;
-	split_page(page, order);
+void *dma_alloc_coherent(struct device *dev, size_t size,
+			   dma_addr_t *dma_handle, gfp_t gfp)
+{
+	void *ret;
+	struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;
+	int order = get_order(size);
+
+	if (mem) {
+		int page = bitmap_find_free_region(mem->bitmap, mem->size,
+						     order);
+		if (page >= 0) {
+			*dma_handle = mem->device_base + (page << PAGE_SHIFT);
+			ret = mem->virt_base + (page << PAGE_SHIFT);
+			memset(ret, 0, size);
+			return ret;
+		}
+		if (mem->flags & DMA_MEMORY_EXCLUSIVE)
+			return NULL;
+	}
 
-	ret = page_address(page);
-	*handle = virt_to_phys(ret);
+	ret = (void *)__get_free_pages(gfp, order);
 
-	vp = ioremap_nocache(*handle, size);
-	if (!vp) {
-		free_pages((unsigned long)ret, order);
-		return NULL;
+	if (ret != NULL) {
+		memset(ret, 0, size);
+		/*
+		 * Pages from the page allocator may have data present in
+		 * cache. So flush the cache before using uncached memory.
+		 */
+		dma_cache_sync(NULL, ret, size, DMA_BIDIRECTIONAL);
+		*dma_handle = virt_to_phys(ret);
 	}
+	return ret;
+}
+EXPORT_SYMBOL(dma_alloc_coherent);
 
-	memset(vp, 0, size);
-
-	/*
-	 * We must flush the cache before we pass it on to the device
-	 */
-	dma_cache_sync(NULL, ret, size, DMA_BIDIRECTIONAL);
+void dma_free_coherent(struct device *dev, size_t size,
+			 void *vaddr, dma_addr_t dma_handle)
+{
+	struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;
+	int order = get_order(size);
 
-	page = virt_to_page(ret);
-	free = page + (size >> PAGE_SHIFT);
-	end  = page + (1 << order);
+	if (mem && vaddr >= mem->virt_base && vaddr < (mem->virt_base + (mem->size << PAGE_SHIFT))) {
+		int page = (vaddr - mem->virt_base) >> PAGE_SHIFT;
 
-	while (++page < end) {
-		/* Free any unused pages */
-		if (page >= free) {
-			__free_page(page);
-		}
+		bitmap_release_region(mem->bitmap, page, order);
+	} else {
+		WARN_ON(irqs_disabled());	/* for portability */
+		BUG_ON(mem && mem->flags & DMA_MEMORY_EXCLUSIVE);
+		free_pages((unsigned long)vaddr, order);
 	}
-
-	return vp;
 }
-EXPORT_SYMBOL(consistent_alloc);
+EXPORT_SYMBOL(dma_free_coherent);
 
-void consistent_free(void *vaddr, size_t size, dma_addr_t dma_handle)
+int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
+				dma_addr_t device_addr, size_t size, int flags)
 {
-	struct page *page;
-	unsigned long addr;
-
-	addr = (unsigned long)phys_to_virt((unsigned long)dma_handle);
-	page = virt_to_page(addr);
+	void __iomem *mem_base = NULL;
+	int pages = size >> PAGE_SHIFT;
+	int bitmap_size = BITS_TO_LONGS(pages) * sizeof(long);
+
+	if ((flags & (DMA_MEMORY_MAP | DMA_MEMORY_IO)) == 0)
+		goto out;
+	if (!size)
+		goto out;
+	if (dev->dma_mem)
+		goto out;
+
+	/* FIXME: this routine just ignores DMA_MEMORY_INCLUDES_CHILDREN */
+
+	mem_base = ioremap_nocache(bus_addr, size);
+	if (!mem_base)
+		goto out;
+
+	dev->dma_mem = kmalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL);
+	if (!dev->dma_mem)
+		goto out;
+	dev->dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL);
+	if (!dev->dma_mem->bitmap)
+		goto free1_out;
+
+	dev->dma_mem->virt_base = mem_base;
+	dev->dma_mem->device_base = device_addr;
+	dev->dma_mem->size = pages;
+	dev->dma_mem->flags = flags;
+
+	if (flags & DMA_MEMORY_MAP)
+		return DMA_MEMORY_MAP;
+
+	return DMA_MEMORY_IO;
+
+ free1_out:
+	kfree(dev->dma_mem);
+ out:
+	if (mem_base)
+		iounmap(mem_base);
+	return 0;
+}
+EXPORT_SYMBOL(dma_declare_coherent_memory);
 
-	free_pages(addr, get_order(size));
+void dma_release_declared_memory(struct device *dev)
+{
+	struct dma_coherent_mem *mem = dev->dma_mem;
+
+	if (!mem)
+		return;
+	dev->dma_mem = NULL;
+	iounmap(mem->virt_base);
+	kfree(mem->bitmap);
+	kfree(mem);
+}
+EXPORT_SYMBOL(dma_release_declared_memory);
 
-	iounmap(vaddr);
+void *dma_mark_declared_memory_occupied(struct device *dev,
+					dma_addr_t device_addr, size_t size)
+{
+	struct dma_coherent_mem *mem = dev->dma_mem;
+	int pages = (size + (device_addr & ~PAGE_MASK) + PAGE_SIZE - 1) >> PAGE_SHIFT;
+	int pos, err;
+
+	if (!mem)
+		return ERR_PTR(-EINVAL);
+
+	pos = (device_addr - mem->device_base) >> PAGE_SHIFT;
+	err = bitmap_allocate_region(mem->bitmap, pos, get_order(pages));
+	if (err != 0)
+		return ERR_PTR(err);
+	return mem->virt_base + (pos << PAGE_SHIFT);
 }
-EXPORT_SYMBOL(consistent_free);
+EXPORT_SYMBOL(dma_mark_declared_memory_occupied);
 
-void consistent_sync(void *vaddr, size_t size, int direction)
+void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+		    enum dma_data_direction direction)
 {
 #ifdef CONFIG_CPU_SH5
 	void *p1addr = vaddr;
@@ -94,4 +176,4 @@ void consistent_sync(void *vaddr, size_t size, int direction)
 		BUG();
 	}
 }
-EXPORT_SYMBOL(consistent_sync);
+EXPORT_SYMBOL(dma_cache_sync);
diff --git a/include/asm-sh/dma-mapping.h b/include/asm-sh/dma-mapping.h
index 20ae762e5258..22cc419389fe 100644
--- a/include/asm-sh/dma-mapping.h
+++ b/include/asm-sh/dma-mapping.h
@@ -8,11 +8,6 @@
 
 extern struct bus_type pci_bus_type;
 
-/* arch/sh/mm/consistent.c */
-extern void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle);
-extern void consistent_free(void *vaddr, size_t size, dma_addr_t handle);
-extern void consistent_sync(void *vaddr, size_t size, int direction);
-
 #define dma_supported(dev, mask)	(1)
 
 static inline int dma_set_mask(struct device *dev, u64 mask)
@@ -25,44 +20,19 @@ static inline int dma_set_mask(struct device *dev, u64 mask)
 	return 0;
 }
 
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *dma_handle, gfp_t flag)
-{
-	if (sh_mv.mv_consistent_alloc) {
-		void *ret;
+void *dma_alloc_coherent(struct device *dev, size_t size,
+			 dma_addr_t *dma_handle, gfp_t flag);
 
-		ret = sh_mv.mv_consistent_alloc(dev, size, dma_handle, flag);
-		if (ret != NULL)
-			return ret;
-	}
-
-	return consistent_alloc(flag, size, dma_handle);
-}
-
-static inline void dma_free_coherent(struct device *dev, size_t size,
-		       void *vaddr, dma_addr_t dma_handle)
-{
-	if (sh_mv.mv_consistent_free) {
-		int ret;
-
-		ret = sh_mv.mv_consistent_free(dev, size, vaddr, dma_handle);
-		if (ret == 0)
-			return;
-	}
+void dma_free_coherent(struct device *dev, size_t size,
+		       void *vaddr, dma_addr_t dma_handle);
 
-	consistent_free(vaddr, size, dma_handle);
-}
+void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+		    enum dma_data_direction dir);
 
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
 #define dma_is_consistent(d, h) (1)
 
-static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
-				  enum dma_data_direction dir)
-{
-	consistent_sync(vaddr, size, (int)dir);
-}
-
 static inline dma_addr_t dma_map_single(struct device *dev,
 					void *ptr, size_t size,
 					enum dma_data_direction dir)
@@ -205,4 +175,18 @@ static inline int dma_mapping_error(dma_addr_t dma_addr)
 {
 	return dma_addr == 0;
 }
+
+#define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
+
+extern int
+dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
+			    dma_addr_t device_addr, size_t size, int flags);
+
+extern void
+dma_release_declared_memory(struct device *dev);
+
+extern void *
+dma_mark_declared_memory_occupied(struct device *dev,
+				  dma_addr_t device_addr, size_t size);
+
 #endif /* __ASM_SH_DMA_MAPPING_H */
-- 
cgit v1.2.3-59-g8ed1b


From a724605cb7a66d423a494a395f9a8ba871b8a1eb Mon Sep 17 00:00:00 2001
From: Magnus Damm <magnus.damm@gmail.com>
Date: Thu, 24 Jan 2008 18:40:50 +0900
Subject: sh: use declared coherent memory for dreamcast pci ethernet adapter

This patch makes the dreamcast use the recently added declared coherent
memory functions to point out the memory window suitable for dma.

Apart from cleaning up, this gives the dreamcast a proper memory allocator
for pci dma memory.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/dreamcast/setup.c       |  8 ----
 arch/sh/drivers/pci/Makefile           |  3 +-
 arch/sh/drivers/pci/dma-dreamcast.c    | 70 ----------------------------------
 arch/sh/drivers/pci/fixups-dreamcast.c | 10 +++++
 4 files changed, 11 insertions(+), 80 deletions(-)
 delete mode 100644 arch/sh/drivers/pci/dma-dreamcast.c

(limited to 'arch')

diff --git a/arch/sh/boards/dreamcast/setup.c b/arch/sh/boards/dreamcast/setup.c
index 8799df6e866a..2581c8cd5df7 100644
--- a/arch/sh/boards/dreamcast/setup.c
+++ b/arch/sh/boards/dreamcast/setup.c
@@ -33,9 +33,6 @@ extern void aica_time_init(void);
 extern int gapspci_init(void);
 extern int systemasic_irq_demux(int);
 
-void *dreamcast_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t);
-int dreamcast_consistent_free(struct device *, size_t, void *, dma_addr_t);
-
 static void __init dreamcast_setup(char **cmdline_p)
 {
 	int i;
@@ -64,9 +61,4 @@ static struct sh_machine_vector mv_dreamcast __initmv = {
 	.mv_name		= "Sega Dreamcast",
 	.mv_setup		= dreamcast_setup,
 	.mv_irq_demux		= systemasic_irq_demux,
-
-#ifdef CONFIG_PCI
-	.mv_consistent_alloc	= dreamcast_consistent_alloc,
-	.mv_consistent_free	= dreamcast_consistent_free,
-#endif
 };
diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile
index 7bf2a2c823f3..0718805774e8 100644
--- a/arch/sh/drivers/pci/Makefile
+++ b/arch/sh/drivers/pci/Makefile
@@ -12,8 +12,7 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7780)	+= pci-sh7780.o ops-sh4.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7785)	+= pci-sh7780.o ops-sh4.o
 obj-$(CONFIG_CPU_SH5)			+= pci-sh5.o ops-sh5.o
 
-obj-$(CONFIG_SH_DREAMCAST)		+= ops-dreamcast.o fixups-dreamcast.o \
-					   dma-dreamcast.o
+obj-$(CONFIG_SH_DREAMCAST)		+= ops-dreamcast.o fixups-dreamcast.o
 obj-$(CONFIG_SH_SECUREEDGE5410)		+= ops-snapgear.o
 obj-$(CONFIG_SH_RTS7751R2D)		+= ops-rts7751r2d.o fixups-rts7751r2d.o
 obj-$(CONFIG_SH_SH03)			+= ops-sh03.o fixups-sh03.o
diff --git a/arch/sh/drivers/pci/dma-dreamcast.c b/arch/sh/drivers/pci/dma-dreamcast.c
deleted file mode 100644
index 888a34050599..000000000000
--- a/arch/sh/drivers/pci/dma-dreamcast.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * arch/sh/drivers/pci/dma-dreamcast.c
- *
- * PCI DMA support for the Sega Dreamcast
- *
- * Copyright (C) 2001, 2002  M. R. Brown
- * Copyright (C) 2002, 2003  Paul Mundt
- *
- * This file originally bore the message (with enclosed-$):
- *	Id: pci.c,v 1.3 2003/05/04 19:29:46 lethal Exp
- *	Dreamcast PCI: Supports SEGA Broadband Adaptor only.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/device.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/mach/pci.h>
-
-static int gapspci_dma_used = 0;
-
-void *dreamcast_consistent_alloc(struct device *dev, size_t size,
-				 dma_addr_t *dma_handle, gfp_t flag)
-{
-	unsigned long buf;
-
-	if (dev && dev->bus != &pci_bus_type)
-		return NULL;
-
-	if (gapspci_dma_used + size > GAPSPCI_DMA_SIZE)
-		return ERR_PTR(-EINVAL);
-
-	buf = GAPSPCI_DMA_BASE + gapspci_dma_used;
-
-	gapspci_dma_used = PAGE_ALIGN(gapspci_dma_used+size);
-
-	*dma_handle = (dma_addr_t)buf;
-
-	buf = P2SEGADDR(buf);
-
-	/* Flush the dcache before we hand off the buffer */
-	__flush_purge_region((void *)buf, size);
-
-	return (void *)buf;
-}
-
-int dreamcast_consistent_free(struct device *dev, size_t size,
-			 void *vaddr, dma_addr_t dma_handle)
-{
-	if (dev && dev->bus != &pci_bus_type)
-		return -EINVAL;
-
-	/* XXX */
-	gapspci_dma_used = 0;
-
-	return 0;
-}
-
diff --git a/arch/sh/drivers/pci/fixups-dreamcast.c b/arch/sh/drivers/pci/fixups-dreamcast.c
index 6f53f8200dc3..c44699301eeb 100644
--- a/arch/sh/drivers/pci/fixups-dreamcast.c
+++ b/arch/sh/drivers/pci/fixups-dreamcast.c
@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/pci.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -40,6 +41,15 @@ static void __init gapspci_fixup_resources(struct pci_dev *dev)
 		 */
 		dev->resource[1].start	= p->io_resource->start  + 0x100;
 		dev->resource[1].end	= dev->resource[1].start + 0x200 - 1;
+		/*
+		 * Redirect dma memory allocations to special memory window.
+		 */
+		BUG_ON(!dma_declare_coherent_memory(&dev->dev,
+						GAPSPCI_DMA_BASE,
+						GAPSPCI_DMA_BASE,
+						GAPSPCI_DMA_SIZE,
+						DMA_MEMORY_MAP |
+						DMA_MEMORY_EXCLUSIVE));
 		break;
 	default:
 		printk("PCI: Failed resource fixup\n");
-- 
cgit v1.2.3-59-g8ed1b


From da2d7f4bc578651455a7353995beb87db3cd8815 Mon Sep 17 00:00:00 2001
From: Magnus Damm <magnus.damm@gmail.com>
Date: Fri, 25 Jan 2008 16:04:29 +0900
Subject: sh: update r7780rp interrupt code

This patch updates the board specific irq code for r7780rp. The new code is
very similar to the other highlander implementations, with the exception that
the r7780rp handles pci interrupts using IRL. To simplify the pci code and
use the same interrupt numbers as r7780mp and r7785rp we hook in to the
cpu specific pci vectors.

The pci interrupts and the push switch all work well with and without this
patch. CF and AX88796 are not ok though and the source of the problem is
unknown at this point. The AX88796 does for not detect it's proper mac
address (IPL gets it right) and the kernel hangs on CF access. As a workaround
this patch removes the CF and the AX88796 from the platform datain case of
r7780rp.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/renesas/r7780rp/Makefile      |  2 +-
 arch/sh/boards/renesas/r7780rp/irq-r7780rp.c | 52 +++++++++++++++++++++++++---
 arch/sh/boards/renesas/r7780rp/irq.c         | 51 ---------------------------
 arch/sh/boards/renesas/r7780rp/setup.c       | 10 +++---
 arch/sh/drivers/pci/ops-r7780rp.c            | 16 ++-------
 include/asm-sh/r7780rp.h                     | 19 ----------
 6 files changed, 57 insertions(+), 93 deletions(-)
 delete mode 100644 arch/sh/boards/renesas/r7780rp/irq.c

(limited to 'arch')

diff --git a/arch/sh/boards/renesas/r7780rp/Makefile b/arch/sh/boards/renesas/r7780rp/Makefile
index dd26182fbf58..20a10080b11f 100644
--- a/arch/sh/boards/renesas/r7780rp/Makefile
+++ b/arch/sh/boards/renesas/r7780rp/Makefile
@@ -3,7 +3,7 @@
 #
 irqinit-$(CONFIG_SH_R7780MP)	:= irq-r7780mp.o
 irqinit-$(CONFIG_SH_R7785RP)	:= irq-r7785rp.o
-irqinit-$(CONFIG_SH_R7780RP)	:= irq-r7780rp.o irq.o
+irqinit-$(CONFIG_SH_R7780RP)	:= irq-r7780rp.o
 obj-y				:= setup.o $(irqinit-y)
 
 ifneq ($(CONFIG_SH_R7785RP),y)
diff --git a/arch/sh/boards/renesas/r7780rp/irq-r7780rp.c b/arch/sh/boards/renesas/r7780rp/irq-r7780rp.c
index fa4a534cade9..bd34048ed0e1 100644
--- a/arch/sh/boards/renesas/r7780rp/irq-r7780rp.c
+++ b/arch/sh/boards/renesas/r7780rp/irq-r7780rp.c
@@ -3,21 +3,65 @@
  *
  * Copyright (C) 2002  Atom Create Engineering Co., Ltd.
  * Copyright (C) 2006  Paul Mundt
+ * Copyright (C) 2008  Magnus Damm
  *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
 #include <linux/init.h>
+#include <linux/irq.h>
 #include <linux/io.h>
 #include <asm/r7780rp.h>
 
+enum {
+	UNUSED = 0,
+
+	/* board specific interrupt sources */
+
+	AX88796,          /* Ethernet controller */
+	PSW,              /* Push Switch */
+	CF,               /* Compact Flash */
+
+	PCI_A,
+	PCI_B,
+	PCI_C,
+	PCI_D,
+};
+
+static struct intc_vect vectors[] __initdata = {
+	INTC_IRQ(PCI_A, 65), /* dirty: overwrite cpu vectors for pci */
+	INTC_IRQ(PCI_B, 66),
+	INTC_IRQ(PCI_C, 67),
+	INTC_IRQ(PCI_D, 68),
+	INTC_IRQ(CF, IRQ_CF),
+	INTC_IRQ(PSW, IRQ_PSW),
+	INTC_IRQ(AX88796, IRQ_AX88796),
+};
+
+static struct intc_mask_reg mask_registers[] __initdata = {
+	{ 0xa5000000, 0, 16, /* IRLMSK */
+	  { PCI_A, PCI_B, PCI_C, PCI_D, CF, 0, 0, 0,
+	    0, 0, 0, 0, 0, 0, PSW, AX88796 } },
+};
+
+static unsigned char irl2irq[HL_NR_IRL] __initdata = {
+	65, 66, 67, 68,
+	IRQ_CF, 0, 0, 0,
+	0, 0, 0, 0,
+	IRQ_AX88796, IRQ_PSW
+};
+
+static DECLARE_INTC_DESC(intc_desc, "r7780rp", vectors,
+			 NULL, mask_registers, NULL, NULL);
+
 unsigned char * __init highlander_init_irq_r7780rp(void)
 {
-	int i;
-
-	for (i = 0; i < 15; i++)
-		make_r7780rp_irq(i);
+	if (ctrl_inw(0xa5000600)) {
+		printk(KERN_INFO "Using r7780rp interrupt controller.\n");
+		register_intc_controller(&intc_desc);
+		return irl2irq;
+	}
 
 	return NULL;
 }
diff --git a/arch/sh/boards/renesas/r7780rp/irq.c b/arch/sh/boards/renesas/r7780rp/irq.c
deleted file mode 100644
index e0b8eb52f376..000000000000
--- a/arch/sh/boards/renesas/r7780rp/irq.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Renesas Solutions Highlander R7780RP-1 Support.
- *
- * Copyright (C) 2002  Atom Create Engineering Co., Ltd.
- * Copyright (C) 2006  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <asm/r7780rp.h>
-
-#ifdef CONFIG_SH_R7780RP
-static int mask_pos[] = {15, 14, 13, 12, 11, 10, 9, 8, 7, 5, 6, 4, 0, 1, 2, 0};
-#elif defined(CONFIG_SH_R7780MP)
-static int mask_pos[] = {12, 11, 9, 14, 15, 8, 13, 6, 5, 4, 3, 2, 0, 0, 1, 0};
-#elif defined(CONFIG_SH_R7785RP)
-static int mask_pos[] = {2, 11, 2, 2, 2, 2, 9, 8, 7, 5, 10, 2, 2, 2, 2, 2};
-#endif
-
-static void enable_r7780rp_irq(unsigned int irq)
-{
-	/* Set priority in IPR back to original value */
-	ctrl_outw(ctrl_inw(IRLCNTR1) | (1 << mask_pos[irq]), IRLCNTR1);
-}
-
-static void disable_r7780rp_irq(unsigned int irq)
-{
-	/* Set the priority in IPR to 0 */
-	ctrl_outw(ctrl_inw(IRLCNTR1) & (0xffff ^ (1 << mask_pos[irq])),
-		  IRLCNTR1);
-}
-
-static struct irq_chip r7780rp_irq_chip __read_mostly = {
-	.name		= "R7780RP",
-	.mask		= disable_r7780rp_irq,
-	.unmask		= enable_r7780rp_irq,
-	.mask_ack	= disable_r7780rp_irq,
-};
-
-void make_r7780rp_irq(unsigned int irq)
-{
-	disable_irq_nosync(irq);
-	set_irq_chip_and_handler_name(irq, &r7780rp_irq_chip,
-				      handle_level_irq, "level");
-	enable_r7780rp_irq(irq);
-}
diff --git a/arch/sh/boards/renesas/r7780rp/setup.c b/arch/sh/boards/renesas/r7780rp/setup.c
index 0fdc0bc19145..a43b47726f54 100644
--- a/arch/sh/boards/renesas/r7780rp/setup.c
+++ b/arch/sh/boards/renesas/r7780rp/setup.c
@@ -179,9 +179,11 @@ static struct platform_device ax88796_device = {
 static struct platform_device *r7780rp_devices[] __initdata = {
 	&r8a66597_usb_host_device,
 	&m66592_usb_peripheral_device,
-	&cf_ide_device,
 	&heartbeat_device,
+#ifndef CONFIG_SH_R7780RP
+	&cf_ide_device,
 	&ax88796_device,
+#endif
 };
 
 static int __init r7780rp_devices_setup(void)
@@ -316,9 +318,9 @@ void __init highlander_init_irq(void)
 			break;
 #endif
 #ifdef CONFIG_SH_R7780RP
-		highlander_init_irq_r7780rp();
-		ucp = irl2irq;
-		break;
+		ucp = highlander_init_irq_r7780rp();
+		if (ucp)
+			break;
 #endif
 	} while (0);
 
diff --git a/arch/sh/drivers/pci/ops-r7780rp.c b/arch/sh/drivers/pci/ops-r7780rp.c
index 48fe4032ebea..5fdadaeed6fc 100644
--- a/arch/sh/drivers/pci/ops-r7780rp.c
+++ b/arch/sh/drivers/pci/ops-r7780rp.c
@@ -17,25 +17,13 @@
 #include <asm/io.h>
 #include "pci-sh4.h"
 
-static char r7780rp_irq_tab[] __initdata = {
-	0, 1, 2, 3,
-};
-
-static char r7780mp_irq_tab[] __initdata = {
+static char irq_tab[] __initdata = {
 	65, 66, 67, 68,
 };
 
 int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
 {
-	if (mach_is_r7780rp())
-		return r7780rp_irq_tab[slot];
-	if (mach_is_r7780mp() || mach_is_r7785rp())
-		return r7780mp_irq_tab[slot];
-
-	printk(KERN_ERR "PCI: Bad IRQ mapping "
-	       "request for slot %d, func %d\n", slot, pin-1);
-
-	return -1;
+	return irq_tab[slot];
 }
 
 static struct resource sh7780_io_resource = {
diff --git a/include/asm-sh/r7780rp.h b/include/asm-sh/r7780rp.h
index 1c2d4d18fab2..bdecea0840a0 100644
--- a/include/asm-sh/r7780rp.h
+++ b/include/asm-sh/r7780rp.h
@@ -121,21 +121,6 @@
 
 #define IRLCNTR1	(PA_BCR + 0)	/* Interrupt Control Register1 */
 
-#define IRQ_PCISLOT1	0		/* PCI Slot #1 IRQ */
-#define IRQ_PCISLOT2	1		/* PCI Slot #2 IRQ */
-#define IRQ_PCISLOT3	2		/* PCI Slot #3 IRQ */
-#define IRQ_PCISLOT4	3		/* PCI Slot #4 IRQ */
-#define IRQ_CFINST	5		/* CF Card Insert IRQ */
-#define IRQ_M66596	6		/* M66596 IRQ */
-#define IRQ_SDCARD	7		/* SD Card IRQ */
-#define IRQ_TUCHPANEL	8		/* Touch Panel IRQ */
-#define IRQ_SCI		9		/* SCI IRQ */
-#define IRQ_2SERIAL	10		/* Serial IRQ */
-#define	IRQ_EXTENTION	11		/* EXTn IRQ */
-#define IRQ_ONETH	12		/* On board Ethernet IRQ */
-#define IRQ_PSW		13		/* Push Switch IRQ */
-#define IRQ_ZIGBEE	14		/* Ziggbee IO IRQ */
-
 #define IVDR_CK_ON	8		/* iVDR Clock ON */
 
 #elif defined(CONFIG_SH_R7785RP)
@@ -192,9 +177,7 @@
 
 #define IRQ_AX88796		(HL_FPGA_IRQ_BASE + 0)
 #define IRQ_CF			(HL_FPGA_IRQ_BASE + 1)
-#ifndef IRQ_PSW
 #define IRQ_PSW			(HL_FPGA_IRQ_BASE + 2)
-#endif
 #define IRQ_EXT0		(HL_FPGA_IRQ_BASE + 3)
 #define IRQ_EXT1		(HL_FPGA_IRQ_BASE + 4)
 #define IRQ_EXT2		(HL_FPGA_IRQ_BASE + 5)
@@ -208,8 +191,6 @@
 #define IRQ_RTC			(HL_FPGA_IRQ_BASE + 13)
 #define IRQ_TH_ALERT		(HL_FPGA_IRQ_BASE + 14)
 
-void make_r7780rp_irq(unsigned int irq);
-
 unsigned char *highlander_init_irq_r7780mp(void);
 unsigned char *highlander_init_irq_r7780rp(void);
 unsigned char *highlander_init_irq_r7785rp(void);
-- 
cgit v1.2.3-59-g8ed1b


From 6582d7b7376aa587d74b08c74457dc28abc1a9fa Mon Sep 17 00:00:00 2001
From: Magnus Damm <magnus.damm@gmail.com>
Date: Wed, 23 Jan 2008 16:21:18 +0900
Subject: sh: add spi header and r2d platform data V3

This patch adds the header file asm/spi.h and board specific code for the
r2d board. The header file contains a structure that should be used to
point out a single spi bus. The board specific code for r2d is updated with
such a structure for the new spi_sh_sci driver. The structure contains a
chip select callback plus information about the R9701 rtc chip which is
attached to the spi bus.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/renesas/rts7751r2d/setup.c | 42 +++++++++++++++++++++++++++++++
 include/asm-sh/spi.h                      | 13 ++++++++++
 2 files changed, 55 insertions(+)
 create mode 100644 include/asm-sh/spi.h

(limited to 'arch')

diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c
index 8528616feaa0..3452b072adde 100644
--- a/arch/sh/boards/renesas/rts7751r2d/setup.c
+++ b/arch/sh/boards/renesas/rts7751r2d/setup.c
@@ -16,9 +16,12 @@
 #include <linux/sm501-regs.h>
 #include <linux/pm.h>
 #include <linux/fb.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi_bitbang.h>
 #include <asm/machvec.h>
 #include <asm/rts7751r2d.h>
 #include <asm/io.h>
+#include <asm/spi.h>
 
 static struct resource cf_ide_resources[] = {
 	[0] = {
@@ -53,6 +56,43 @@ static struct platform_device cf_ide_device  = {
 	},
 };
 
+static struct spi_board_info spi_bus[] = {
+	{
+		.modalias	= "rtc-r9701",
+		.max_speed_hz	= 1000000,
+		.mode		= SPI_MODE_3,
+	},
+};
+
+static void r2d_chip_select(struct sh_spi_info *spi, int cs, int state)
+{
+	BUG_ON(cs != 0);  /* Single Epson RTC-9701JE attached on CS0 */
+	ctrl_outw(state == BITBANG_CS_ACTIVE, PA_RTCCE);
+}
+
+static struct sh_spi_info spi_info = {
+	.num_chipselect = 1,
+	.chip_select = r2d_chip_select,
+};
+
+static struct resource spi_sh_sci_resources[] = {
+	{
+		.start	= 0xffe00000,
+		.end	= 0xffe0001f,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device spi_sh_sci_device  = {
+	.name		= "spi_sh_sci",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(spi_sh_sci_resources),
+	.resource	= spi_sh_sci_resources,
+	.dev	= {
+		.platform_data	= &spi_info,
+	},
+};
+
 static struct resource heartbeat_resources[] = {
 	[0] = {
 		.start	= PA_OUTPORT,
@@ -176,10 +216,12 @@ static struct platform_device *rts7751r2d_devices[] __initdata = {
 #endif
 	&cf_ide_device,
 	&heartbeat_device,
+	&spi_sh_sci_device,
 };
 
 static int __init rts7751r2d_devices_setup(void)
 {
+	spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus));
 	return platform_add_devices(rts7751r2d_devices,
 				    ARRAY_SIZE(rts7751r2d_devices));
 }
diff --git a/include/asm-sh/spi.h b/include/asm-sh/spi.h
new file mode 100644
index 000000000000..e96f5b0953c8
--- /dev/null
+++ b/include/asm-sh/spi.h
@@ -0,0 +1,13 @@
+#ifndef __ASM_SPI_H__
+#define __ASM_SPI_H__
+
+struct sh_spi_info;
+
+struct sh_spi_info {
+	int			 bus_num;
+	int			 num_chipselect;
+
+	void (*chip_select)(struct sh_spi_info *spi, int cs, int state);
+};
+
+#endif /* __ASM_SPI_H__ */
-- 
cgit v1.2.3-59-g8ed1b


From 650e9cfd14a1ac9e077d72962ea0a80946cdb6f8 Mon Sep 17 00:00:00 2001
From: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Date: Tue, 11 Dec 2007 17:42:27 -0500
Subject: blk_end_request: changing arm (take 4)

This patch converts arm's OMAP mailbox driver to use
blk_end_request interfaces.

If the original code was converted literally, blk_end_request would
be called with '-EIO' because end_that_request_last() were called
with '0' (i.e. failure).
But I think these '0's are bugs in the original code because it's
unlikely that all requests are treated as failure.
(The bugs should have no effect unless these requests have an end_io
 callback.)

So I changed them to pass '0' (i.e. success) to blk_end_request.

Cc: Toshihiro Kobayashi <toshihiro.kobayashi@nokia.com>
Cc: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 arch/arm/plat-omap/mailbox.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c
index 0360b1f14d11..65e9c26f2054 100644
--- a/arch/arm/plat-omap/mailbox.c
+++ b/arch/arm/plat-omap/mailbox.c
@@ -116,8 +116,8 @@ static void mbox_tx_work(struct work_struct *work)
 		}
 
 		spin_lock(q->queue_lock);
-		blkdev_dequeue_request(rq);
-		end_that_request_last(rq, 0);
+		if (__blk_end_request(rq, 0, 0))
+			BUG();
 		spin_unlock(q->queue_lock);
 	}
 }
@@ -149,10 +149,8 @@ static void mbox_rx_work(struct work_struct *work)
 
 		msg = (mbox_msg_t) rq->data;
 
-		spin_lock_irqsave(q->queue_lock, flags);
-		blkdev_dequeue_request(rq);
-		end_that_request_last(rq, 0);
-		spin_unlock_irqrestore(q->queue_lock, flags);
+		if (blk_end_request(rq, 0, 0))
+			BUG();
 
 		mbox->rxq->callback((void *)msg);
 	}
@@ -263,10 +261,8 @@ omap_mbox_read(struct device *dev, struct device_attribute *attr, char *buf)
 
 		*p = (mbox_msg_t) rq->data;
 
-		spin_lock_irqsave(q->queue_lock, flags);
-		blkdev_dequeue_request(rq);
-		end_that_request_last(rq, 0);
-		spin_unlock_irqrestore(q->queue_lock, flags);
+		if (blk_end_request(rq, 0, 0))
+			BUG();
 
 		if (unlikely(mbox_seq_test(mbox, *p))) {
 			pr_info("mbox: Illegal seq bit!(%08x) ignored\n", *p);
-- 
cgit v1.2.3-59-g8ed1b


From 4898b53a5e3e4b9a58f1d89545b1e05c88c76798 Mon Sep 17 00:00:00 2001
From: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Date: Tue, 11 Dec 2007 17:42:53 -0500
Subject: blk_end_request: changing um (take 4)

This patch converts um to use blk_end_request interfaces.
Related 'uptodate' arguments are converted to 'error'.

As a result, the interface of internal function, ubd_end_request(),
is changed.

Cc: Jeff Dike <jdike@karaya.com>
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 arch/um/drivers/ubd_kern.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index b1a77b11f089..99f9f9605e9c 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -475,17 +475,9 @@ static void do_ubd_request(struct request_queue * q);
 /* Only changed by ubd_init, which is an initcall. */
 int thread_fd = -1;
 
-static void ubd_end_request(struct request *req, int bytes, int uptodate)
+static void ubd_end_request(struct request *req, int bytes, int error)
 {
-	if (!end_that_request_first(req, uptodate, bytes >> 9)) {
-		struct ubd *dev = req->rq_disk->private_data;
-		unsigned long flags;
-
-		add_disk_randomness(req->rq_disk);
-		spin_lock_irqsave(&dev->lock, flags);
-		end_that_request_last(req, uptodate);
-		spin_unlock_irqrestore(&dev->lock, flags);
-	}
+	blk_end_request(req, error, bytes);
 }
 
 /* Callable only from interrupt context - otherwise you need to do
@@ -493,10 +485,10 @@ static void ubd_end_request(struct request *req, int bytes, int uptodate)
 static inline void ubd_finish(struct request *req, int bytes)
 {
 	if(bytes < 0){
-		ubd_end_request(req, 0, 0);
+		ubd_end_request(req, 0, -EIO);
 		return;
 	}
-	ubd_end_request(req, bytes, 1);
+	ubd_end_request(req, bytes, 0);
 }
 
 static LIST_HEAD(restart);
-- 
cgit v1.2.3-59-g8ed1b


From 6232be32afa121628c72291ce7eaa24a639905c2 Mon Sep 17 00:00:00 2001
From: eric miao <eric.y.miao@gmail.com>
Date: Thu, 24 Jan 2008 02:27:30 +0100
Subject: [ARM] 4763/1: pxa: fix pxa3xx_get_clk_frequency_khz() to return KHz

The original code incorrectly returns Hz instead of KHz.

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/pxa3xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 61d9c9d69e6b..37e93f9ba8fc 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -86,7 +86,7 @@ unsigned int pxa3xx_get_clk_frequency_khz(int info)
 			HSS / 1000000, (HSS % 1000000) / 10000);
 	}
 
-	return CLK;
+	return CLK / 1000;
 }
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From 193c3cc12583344be01206078d9ad3fec5dbc397 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Mon, 28 Jan 2008 10:16:37 +0000
Subject: [ARM] Fix timer damage from d3d74453c34f8fd87674a8cf5b8a327c68f22e99

Move the xtime write mode seqlock into timer_tick(), so it only
surrounds the call to do_timer().

This avoids a deadlock in update_process_times() ...
hrtimer_get_softirq_time() which tries to get a read mode seqlock
on xtime, thereby preventing booting.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/time.c                   | 2 ++
 arch/arm/mach-aaec2000/core.c            | 4 ----
 arch/arm/mach-clps711x/time.c            | 2 --
 arch/arm/mach-clps7500/core.c            | 4 ----
 arch/arm/mach-ebsa110/core.c             | 4 ----
 arch/arm/mach-ep93xx/core.c              | 4 ----
 arch/arm/mach-footbridge/dc21285-timer.c | 4 ----
 arch/arm/mach-footbridge/isa-timer.c     | 2 --
 arch/arm/mach-h720x/cpu-h7201.c          | 4 ----
 arch/arm/mach-h720x/cpu-h7202.c          | 2 --
 arch/arm/mach-integrator/core.c          | 4 ----
 arch/arm/mach-ixp2000/core.c             | 4 ----
 arch/arm/mach-ks8695/time.c              | 3 ---
 arch/arm/mach-lh7a40x/time.c             | 4 ----
 arch/arm/mach-mx3/time.c                 | 4 ----
 arch/arm/mach-netx/time.c                | 4 ----
 arch/arm/mach-omap2/timer-gp.c           | 4 ----
 arch/arm/mach-pnx4008/time.c             | 4 ----
 arch/arm/mach-realview/core.c            | 4 ----
 arch/arm/mach-sa1100/time.c              | 4 ----
 arch/arm/mach-shark/core.c               | 2 --
 21 files changed, 2 insertions(+), 71 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index e59b5b84168d..b5867eca1d0b 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -325,7 +325,9 @@ void timer_tick(void)
 	profile_tick(CPU_PROFILING);
 	do_leds();
 	do_set_rtc();
+	write_seqlock(&xtime_lock);
 	do_timer(1);
+	write_sequnlock(&xtime_lock);
 #ifndef CONFIG_SMP
 	update_process_times(user_mode(get_irq_regs()));
 #endif
diff --git a/arch/arm/mach-aaec2000/core.c b/arch/arm/mach-aaec2000/core.c
index 0446ef2f5bd6..b016be2b0e35 100644
--- a/arch/arm/mach-aaec2000/core.c
+++ b/arch/arm/mach-aaec2000/core.c
@@ -130,13 +130,9 @@ static irqreturn_t
 aaec2000_timer_interrupt(int irq, void *dev_id)
 {
 	/* TODO: Check timer accuracy */
-	write_seqlock(&xtime_lock);
-
 	timer_tick();
 	TIMER1_CLEAR = 1;
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-clps711x/time.c b/arch/arm/mach-clps711x/time.c
index f428af7545b4..e5dc33f1f95c 100644
--- a/arch/arm/mach-clps711x/time.c
+++ b/arch/arm/mach-clps711x/time.c
@@ -50,9 +50,7 @@ static unsigned long clps711x_gettimeoffset(void)
 static irqreturn_t
 p720t_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
 	timer_tick();
-	write_sequnlock(&xtime_lock);
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-clps7500/core.c b/arch/arm/mach-clps7500/core.c
index 986205ec9269..2ac63671ea5f 100644
--- a/arch/arm/mach-clps7500/core.c
+++ b/arch/arm/mach-clps7500/core.c
@@ -298,8 +298,6 @@ extern unsigned long ioc_timer_gettimeoffset(void);
 static irqreturn_t
 clps7500_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
-
 	timer_tick();
 
 	/* Why not using do_leds interface?? */
@@ -313,8 +311,6 @@ clps7500_timer_interrupt(int irq, void *dev_id)
 		}
 	}
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-ebsa110/core.c b/arch/arm/mach-ebsa110/core.c
index 8c1b5690dfe8..7710e14b5268 100644
--- a/arch/arm/mach-ebsa110/core.c
+++ b/arch/arm/mach-ebsa110/core.c
@@ -178,8 +178,6 @@ ebsa110_timer_interrupt(int irq, void *dev_id)
 {
 	u32 count;
 
-	write_seqlock(&xtime_lock);
-
 	/* latch and read timer 1 */
 	__raw_writeb(0x40, PIT_CTRL);
 	count = __raw_readb(PIT_T1);
@@ -192,8 +190,6 @@ ebsa110_timer_interrupt(int irq, void *dev_id)
 
 	timer_tick();
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 70b2c7801110..f1074ff02fdb 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -99,8 +99,6 @@ static unsigned int last_jiffy_time;
 
 static int ep93xx_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
-
 	__raw_writel(1, EP93XX_TIMER1_CLEAR);
 	while ((signed long)
 		(__raw_readl(EP93XX_TIMER4_VALUE_LOW) - last_jiffy_time)
@@ -109,8 +107,6 @@ static int ep93xx_timer_interrupt(int irq, void *dev_id)
 		timer_tick();
 	}
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-footbridge/dc21285-timer.c b/arch/arm/mach-footbridge/dc21285-timer.c
index 3a63941d43be..b2a21189dd81 100644
--- a/arch/arm/mach-footbridge/dc21285-timer.c
+++ b/arch/arm/mach-footbridge/dc21285-timer.c
@@ -30,14 +30,10 @@ static unsigned long timer1_gettimeoffset (void)
 static irqreturn_t
 timer1_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
-
 	*CSR_TIMER1_CLR = 0;
 
 	timer_tick();
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-footbridge/isa-timer.c b/arch/arm/mach-footbridge/isa-timer.c
index d08d64139d00..a764e01d3573 100644
--- a/arch/arm/mach-footbridge/isa-timer.c
+++ b/arch/arm/mach-footbridge/isa-timer.c
@@ -64,9 +64,7 @@ static unsigned long isa_gettimeoffset(void)
 static irqreturn_t
 isa_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
 	timer_tick();
-	write_sequnlock(&xtime_lock);
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-h720x/cpu-h7201.c b/arch/arm/mach-h720x/cpu-h7201.c
index 9107b8e2ad6e..c2a431f482f0 100644
--- a/arch/arm/mach-h720x/cpu-h7201.c
+++ b/arch/arm/mach-h720x/cpu-h7201.c
@@ -29,13 +29,9 @@
 static irqreturn_t
 h7201_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
-
 	CPU_REG (TIMER_VIRT, TIMER_TOPSTAT);
 	timer_tick();
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-h720x/cpu-h7202.c b/arch/arm/mach-h720x/cpu-h7202.c
index 0a1a25fb8ba8..c627fa124eb3 100644
--- a/arch/arm/mach-h720x/cpu-h7202.c
+++ b/arch/arm/mach-h720x/cpu-h7202.c
@@ -113,9 +113,7 @@ h7202_timerx_demux_handler(unsigned int irq_unused, struct irq_desc *desc)
 	mask = CPU_REG (TIMER_VIRT, TIMER_TOPSTAT);
 
 	if ( mask & TSTAT_T0INT ) {
-		write_seqlock(&xtime_lock);
 		timer_tick();
-		write_sequnlock(&xtime_lock);
 		if( mask == TSTAT_T0INT )
 			return;
 	}
diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c
index e9c82deb791d..7fbbc17f8e8b 100644
--- a/arch/arm/mach-integrator/core.c
+++ b/arch/arm/mach-integrator/core.c
@@ -250,8 +250,6 @@ unsigned long integrator_gettimeoffset(void)
 static irqreturn_t
 integrator_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
-
 	/*
 	 * clear the interrupt
 	 */
@@ -259,8 +257,6 @@ integrator_timer_interrupt(int irq, void *dev_id)
 
 	timer_tick();
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c
index cb6ad211887a..81cdc8267206 100644
--- a/arch/arm/mach-ixp2000/core.c
+++ b/arch/arm/mach-ixp2000/core.c
@@ -206,8 +206,6 @@ unsigned long ixp2000_gettimeoffset (void)
 
 static int ixp2000_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
-
 	/* clear timer 1 */
 	ixp2000_reg_wrb(IXP2000_T1_CLR, 1);
 
@@ -217,8 +215,6 @@ static int ixp2000_timer_interrupt(int irq, void *dev_id)
 		next_jiffy_time -= ticks_per_jiffy;
 	}
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-ks8695/time.c b/arch/arm/mach-ks8695/time.c
index d2c86e4a72eb..02f766b3121d 100644
--- a/arch/arm/mach-ks8695/time.c
+++ b/arch/arm/mach-ks8695/time.c
@@ -70,10 +70,7 @@ static unsigned long ks8695_gettimeoffset (void)
  */
 static irqreturn_t ks8695_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
 	timer_tick();
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-lh7a40x/time.c b/arch/arm/mach-lh7a40x/time.c
index c25316d02537..e50e60b33851 100644
--- a/arch/arm/mach-lh7a40x/time.c
+++ b/arch/arm/mach-lh7a40x/time.c
@@ -41,13 +41,9 @@
 static irqreturn_t
 lh7a40x_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
-
 	TIMER_EOI = 0;
 	timer_tick();
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-mx3/time.c b/arch/arm/mach-mx3/time.c
index e81fb5c5d7c3..fb565c98dbfb 100644
--- a/arch/arm/mach-mx3/time.c
+++ b/arch/arm/mach-mx3/time.c
@@ -45,8 +45,6 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id)
 {
 	unsigned int next_match;
 
-	write_seqlock(&xtime_lock);
-
 	if (__raw_readl(MXC_GPT_GPTSR) & GPTSR_OF1) {
 		do {
 			timer_tick();
@@ -57,8 +55,6 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id)
 				       __raw_readl(MXC_GPT_GPTCNT)) <= 0);
 	}
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-netx/time.c b/arch/arm/mach-netx/time.c
index 4762e207b0bf..ea07b54afa59 100644
--- a/arch/arm/mach-netx/time.c
+++ b/arch/arm/mach-netx/time.c
@@ -33,12 +33,8 @@
 static irqreturn_t
 netx_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
-
 	timer_tick();
 
-	write_sequnlock(&xtime_lock);
-
 	/* acknowledge interrupt */
 	writel(COUNTER_BIT(0), NETX_GPIO_IRQ);
 
diff --git a/arch/arm/mach-omap2/timer-gp.c b/arch/arm/mach-omap2/timer-gp.c
index 8d322c20ccae..3234deedb946 100644
--- a/arch/arm/mach-omap2/timer-gp.c
+++ b/arch/arm/mach-omap2/timer-gp.c
@@ -40,13 +40,9 @@ static inline void omap2_gp_timer_start(unsigned long load_val)
 
 static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
-
 	omap_dm_timer_write_status(gptimer, OMAP_TIMER_INT_OVERFLOW);
 	timer_tick();
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-pnx4008/time.c b/arch/arm/mach-pnx4008/time.c
index 67e05f005a6b..6d4ca8fc0cb4 100644
--- a/arch/arm/mach-pnx4008/time.c
+++ b/arch/arm/mach-pnx4008/time.c
@@ -51,8 +51,6 @@ static irqreturn_t pnx4008_timer_interrupt(int irq, void *dev_id)
 {
 	if (__raw_readl(HSTIM_INT) & MATCH0_INT) {
 
-		write_seqlock(&xtime_lock);
-
 		do {
 			timer_tick();
 
@@ -73,8 +71,6 @@ static irqreturn_t pnx4008_timer_interrupt(int irq, void *dev_id)
 		} while ((signed)
 			 (__raw_readl(HSTIM_MATCH0) -
 			  __raw_readl(HSTIM_COUNTER)) < 0);
-
-		write_sequnlock(&xtime_lock);
 	}
 
 	return IRQ_HANDLED;
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index c7f1b44da40d..61d70218f1e8 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -530,8 +530,6 @@ static unsigned long realview_gettimeoffset(void)
  */
 static irqreturn_t realview_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
-
 	// ...clear the interrupt
 	writel(1, TIMER0_VA_BASE + TIMER_INTCLR);
 
@@ -542,8 +540,6 @@ static irqreturn_t realview_timer_interrupt(int irq, void *dev_id)
 	update_process_times(user_mode(get_irq_regs()));
 #endif
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-sa1100/time.c b/arch/arm/mach-sa1100/time.c
index fdf7b016e7ad..47f8640438e6 100644
--- a/arch/arm/mach-sa1100/time.c
+++ b/arch/arm/mach-sa1100/time.c
@@ -62,8 +62,6 @@ sa1100_timer_interrupt(int irq, void *dev_id)
 {
 	unsigned int next_match;
 
-	write_seqlock(&xtime_lock);
-
 #ifdef CONFIG_NO_IDLE_HZ
 	if (match_posponed) {
 		match_posponed = 0;
@@ -85,8 +83,6 @@ sa1100_timer_interrupt(int irq, void *dev_id)
 		next_match = (OSMR0 += LATCH);
 	} while ((signed long)(next_match - OSCR) <= 0);
 
-	write_sequnlock(&xtime_lock);
-
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/arm/mach-shark/core.c b/arch/arm/mach-shark/core.c
index a0545db2a34f..09d9f33d4072 100644
--- a/arch/arm/mach-shark/core.c
+++ b/arch/arm/mach-shark/core.c
@@ -82,9 +82,7 @@ static void __init shark_map_io(void)
 static irqreturn_t
 shark_timer_interrupt(int irq, void *dev_id)
 {
-	write_seqlock(&xtime_lock);
 	timer_tick();
-	write_sequnlock(&xtime_lock);
 	return IRQ_HANDLED;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From e01dbdb40eea94ecb2c703960dac744c9b19a186 Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov <dbaryshkov@gmail.com>
Date: Sun, 27 Jan 2008 23:11:48 +0100
Subject: [ARM] 4776/1: Add HWUART clock to fix hwuart support

This adds back the registration of HWUART clock on pxa25x

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/pxa25x.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 9732d5d9466b..006a6e09589c 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -111,11 +111,14 @@ static const struct clkops clk_pxa25x_lcd_ops = {
  * 95.842MHz -> MMC 19.169MHz, I2C 31.949MHz, FICP 47.923MHz, USB 47.923MHz
  * 147.456MHz -> UART 14.7456MHz, AC97 12.288MHz, I2S 5.672MHz (allegedly)
  */
+static struct clk pxa25x_hwuart_clk =
+	INIT_CKEN("UARTCLK", HWUART, 14745600, 1, &pxa_device_hwuart.dev)
+;
+
 static struct clk pxa25x_clks[] = {
 	INIT_CK("LCDCLK", LCD, &clk_pxa25x_lcd_ops, &pxa_device_fb.dev),
 	INIT_CKEN("UARTCLK", FFUART, 14745600, 1, &pxa_device_ffuart.dev),
 	INIT_CKEN("UARTCLK", BTUART, 14745600, 1, &pxa_device_btuart.dev),
-	INIT_CKEN("UARTCLK", BTUART, 14745600, 1, &pxa_device_btuart.dev),
 	INIT_CKEN("UARTCLK", STUART, 14745600, 1, NULL),
 	INIT_CKEN("UDCCLK", USB, 47923000, 5, &pxa_device_udc.dev),
 	INIT_CKEN("MMCCLK", MMC, 19169000, 0, &pxa_device_mci.dev),
@@ -303,6 +306,10 @@ static int __init pxa25x_init(void)
 {
 	int ret = 0;
 
+	/* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */
+	if (cpu_is_pxa25x())
+		clks_register(&pxa25x_hwuart_clk, 1);
+
 	if (cpu_is_pxa21x() || cpu_is_pxa25x()) {
 		clks_register(pxa25x_clks, ARRAY_SIZE(pxa25x_clks));
 
-- 
cgit v1.2.3-59-g8ed1b


From 3abcd199db312abeec617083be8a7655cab73ec8 Mon Sep 17 00:00:00 2001
From: Ian Molton <spyro@f2s.com>
Date: Mon, 19 Nov 2007 13:16:56 +0100
Subject: [ARM] 4649/1: Base support for pxa-based Toshiba e-series PDAs.

This patch contains the base code to boot the Toshiba e330, e740,
e750, e400, and e800 PDAs.

Signed-off-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/configs/eseries_pxa_defconfig | 1499 ++++++++++++++++++++++++++++++++
 arch/arm/mach-pxa/Kconfig              |   44 +
 arch/arm/mach-pxa/Makefile             |    1 +
 arch/arm/mach-pxa/eseries.c            |  101 +++
 4 files changed, 1645 insertions(+)
 create mode 100644 arch/arm/configs/eseries_pxa_defconfig
 create mode 100644 arch/arm/mach-pxa/eseries.c

(limited to 'arch')

diff --git a/arch/arm/configs/eseries_pxa_defconfig b/arch/arm/configs/eseries_pxa_defconfig
new file mode 100644
index 000000000000..ed487b90dbed
--- /dev/null
+++ b/arch/arm/configs/eseries_pxa_defconfig
@@ -0,0 +1,1499 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.21-hh17
+# Fri Nov  9 20:23:03 2007
+#
+CONFIG_ARM=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_TIME=y
+CONFIG_MMU=y
+# CONFIG_NO_IOPORT is not set
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_ZONE_DMA=y
+CONFIG_ARCH_MTD_XIP=y
+CONFIG_VECTORS_BASE=0xffff0000
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# Code maturity level options
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+
+#
+# General setup
+#
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SWAP=y
+CONFIG_SYSVIPC=y
+# CONFIG_IPC_NS is not set
+CONFIG_SYSVIPC_SYSCTL=y
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_UTS_NS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE=""
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+CONFIG_UID16=y
+CONFIG_SYSCTL_SYSCALL=y
+# CONFIG_KALLSYMS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_EPOLL=y
+CONFIG_SHMEM=y
+CONFIG_SLAB=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+# CONFIG_SLOB is not set
+
+#
+# Loadable module support
+#
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+CONFIG_KMOD=y
+
+#
+# Block layer
+#
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+CONFIG_DEFAULT_AS=y
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="anticipatory"
+
+#
+# System Type
+#
+# CONFIG_ARCH_AAEC2000 is not set
+# CONFIG_ARCH_INTEGRATOR is not set
+# CONFIG_ARCH_REALVIEW is not set
+# CONFIG_ARCH_VERSATILE is not set
+# CONFIG_ARCH_AT91 is not set
+# CONFIG_ARCH_CLPS7500 is not set
+# CONFIG_ARCH_CLPS711X is not set
+# CONFIG_ARCH_CO285 is not set
+# CONFIG_ARCH_EBSA110 is not set
+# CONFIG_ARCH_EP93XX is not set
+# CONFIG_ARCH_FOOTBRIDGE is not set
+# CONFIG_ARCH_NETX is not set
+# CONFIG_ARCH_H720X is not set
+# CONFIG_ARCH_IMX is not set
+# CONFIG_ARCH_IOP32X is not set
+# CONFIG_ARCH_IOP33X is not set
+# CONFIG_ARCH_IOP13XX is not set
+# CONFIG_ARCH_IXP4XX is not set
+# CONFIG_ARCH_IXP2000 is not set
+# CONFIG_ARCH_IXP23XX is not set
+# CONFIG_ARCH_L7200 is not set
+# CONFIG_ARCH_NS9XXX is not set
+# CONFIG_ARCH_PNX4008 is not set
+CONFIG_ARCH_PXA=y
+# CONFIG_ARCH_RPC is not set
+# CONFIG_ARCH_SA1100 is not set
+# CONFIG_ARCH_S3C2410 is not set
+# CONFIG_ARCH_SHARK is not set
+# CONFIG_ARCH_LH7A40X is not set
+# CONFIG_ARCH_OMAP is not set
+# CONFIG_BOARD_IRQ_MAP_SMALL is not set
+CONFIG_BOARD_IRQ_MAP_BIG=y
+CONFIG_DMABOUNCE=y
+
+#
+# Intel PXA2xx Implementations
+#
+# CONFIG_ARCH_LUBBOCK is not set
+# CONFIG_MACH_LOGICPD_PXA270 is not set
+# CONFIG_MACH_MAINSTONE is not set
+# CONFIG_ARCH_PXA_IDP is not set
+CONFIG_TOSHIBA_TMIO_OHCI=y
+CONFIG_ARCH_ESERIES=y
+CONFIG_MACH_E330=y
+CONFIG_MACH_E740=y
+CONFIG_MACH_E750=y
+CONFIG_MACH_E400=y
+CONFIG_MACH_E800=y
+CONFIG_E330_LCD=y
+CONFIG_E740_LCD=y
+CONFIG_E750_LCD=y
+CONFIG_E400_LCD=y
+CONFIG_E800_LCD=y
+CONFIG_ESERIES_UDC=y
+CONFIG_E330_TC6387XB=y
+CONFIG_E740_T7L66XB=y
+CONFIG_E400_T7L66XB=y
+CONFIG_E750_E800_TC6393XB=y
+CONFIG_E740_PCMCIA=m
+CONFIG_E750_PCMCIA=m
+CONFIG_E800_PCMCIA=m
+# CONFIG_MACH_A620 is not set
+# CONFIG_MACH_A716 is not set
+# CONFIG_MACH_A730 is not set
+# CONFIG_ARCH_H1900 is not set
+# CONFIG_ARCH_H2200 is not set
+# CONFIG_MACH_H3900 is not set
+# CONFIG_MACH_H4000 is not set
+# CONFIG_MACH_H4700 is not set
+# CONFIG_MACH_HX2750 is not set
+# CONFIG_ARCH_H5400 is not set
+# CONFIG_MACH_HIMALAYA is not set
+# CONFIG_MACH_HTCUNIVERSAL is not set
+# CONFIG_MACH_HTCALPINE is not set
+# CONFIG_MACH_MAGICIAN is not set
+# CONFIG_MACH_HTCAPACHE is not set
+# CONFIG_MACH_BLUEANGEL is not set
+
+#
+# HTC_HW6X00
+#
+# CONFIG_MACH_HTCBEETLES is not set
+# CONFIG_MACH_HW6900 is not set
+# CONFIG_MACH_HTCATHENA is not set
+# CONFIG_ARCH_AXIMX3 is not set
+# CONFIG_ARCH_AXIMX5 is not set
+# CONFIG_MACH_X50 is not set
+# CONFIG_ARCH_ROVERP1 is not set
+# CONFIG_ARCH_ROVERP5P is not set
+# CONFIG_MACH_XSCALE_PALMLD is not set
+# CONFIG_MACH_T3XSCALE is not set
+# CONFIG_MACH_RECON is not set
+# CONFIG_MACH_GHI270HG is not set
+# CONFIG_MACH_GHI270 is not set
+# CONFIG_MACH_LOOXC550 is not set
+# CONFIG_PXA_SHARPSL is not set
+# CONFIG_MACH_TRIZEPS4 is not set
+CONFIG_PXA25x=y
+
+#
+# Linux As Bootloader
+#
+# CONFIG_LAB is not set
+
+#
+# Processor Type
+#
+CONFIG_CPU_32=y
+CONFIG_CPU_XSCALE=y
+CONFIG_CPU_32v5=y
+CONFIG_CPU_ABRT_EV5T=y
+CONFIG_CPU_CACHE_VIVT=y
+CONFIG_CPU_TLB_V4WBI=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+
+#
+# Processor Features
+#
+# CONFIG_ARM_THUMB is not set
+# CONFIG_CPU_DCACHE_DISABLE is not set
+# CONFIG_OUTER_CACHE is not set
+CONFIG_IWMMXT=y
+CONFIG_XSCALE_PMU=y
+
+#
+# Bus support
+#
+
+#
+# PCCARD (PCMCIA/CardBus) support
+#
+CONFIG_PCCARD=m
+# CONFIG_PCMCIA_DEBUG is not set
+CONFIG_PCMCIA=m
+CONFIG_PCMCIA_LOAD_CIS=y
+CONFIG_PCMCIA_IOCTL=y
+
+#
+# PC-card bridges
+#
+CONFIG_PCMCIA_PXA2XX=m
+
+#
+# Kernel Features
+#
+# CONFIG_PREEMPT is not set
+# CONFIG_NO_IDLE_HZ is not set
+CONFIG_HZ=100
+CONFIG_AEABI=y
+CONFIG_OABI_COMPAT=y
+# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4096
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_ALIGNMENT_TRAP=y
+
+#
+# Boot options
+#
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_CMDLINE=""
+# CONFIG_XIP_KERNEL is not set
+CONFIG_KEXEC=y
+# CONFIG_TXTOFFSET_DELTA is not set
+
+#
+# CPU Frequency scaling
+#
+# CONFIG_CPU_FREQ is not set
+
+#
+# Floating point emulation
+#
+
+#
+# At least one emulation must be selected
+#
+CONFIG_FPE_NWFPE=y
+# CONFIG_FPE_NWFPE_XP is not set
+# CONFIG_FPE_FASTFPE is not set
+
+#
+# Userspace binary formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_AOUT is not set
+CONFIG_BINFMT_MISC=y
+
+#
+# Power management options
+#
+CONFIG_PM=y
+CONFIG_PM_LEGACY=y
+# CONFIG_PM_DEBUG is not set
+# CONFIG_DPM_DEBUG is not set
+# CONFIG_PM_SYSFS_DEPRECATED is not set
+# CONFIG_APM_EMULATION is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+# CONFIG_NETDEBUG is not set
+# CONFIG_PACKET is not set
+CONFIG_UNIX=y
+CONFIG_XFRM=y
+# CONFIG_XFRM_USER is not set
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
+CONFIG_INET_XFRM_MODE_BEET=y
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+
+#
+# DCCP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_DCCP is not set
+
+#
+# SCTP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_SCTP is not set
+
+#
+# TIPC Configuration (EXPERIMENTAL)
+#
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+
+#
+# QoS and/or fair queueing
+#
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+CONFIG_IEEE80211=m
+# CONFIG_IEEE80211_DEBUG is not set
+CONFIG_IEEE80211_CRYPT_WEP=m
+# CONFIG_IEEE80211_CRYPT_CCMP is not set
+# CONFIG_IEEE80211_CRYPT_TKIP is not set
+# CONFIG_IEEE80211_SOFTMAC is not set
+CONFIG_WIRELESS_EXT=y
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+# CONFIG_STANDALONE is not set
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+CONFIG_FW_LOADER=y
+# CONFIG_SYS_HYPERVISOR is not set
+
+#
+# Connector - unified userspace <-> kernelspace linker
+#
+# CONFIG_CONNECTOR is not set
+
+#
+# Memory Technology Devices (MTD)
+#
+CONFIG_MTD=m
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+# CONFIG_MTD_AFS_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=m
+CONFIG_MTD_BLKDEVS=m
+CONFIG_MTD_BLOCK=m
+# CONFIG_MTD_BLOCK_RO is not set
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+# CONFIG_MTD_CFI is not set
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+# CONFIG_MTD_OBSOLETE_CHIPS is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+# CONFIG_MTD_SHARP_SL is not set
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+
+#
+# NAND Flash Device Drivers
+#
+CONFIG_MTD_NAND=m
+CONFIG_MTD_NAND_VERIFY_WRITE=y
+# CONFIG_MTD_NAND_ECC_SMC is not set
+# CONFIG_MTD_NAND_H1900 is not set
+CONFIG_MTD_NAND_IDS=m
+# CONFIG_MTD_NAND_DISKONCHIP is not set
+# CONFIG_MTD_NAND_SHARPSL is not set
+# CONFIG_MTD_NAND_NANDSIM is not set
+
+#
+# OneNAND Flash Device Drivers
+#
+# CONFIG_MTD_ONENAND is not set
+
+#
+# Parallel port support
+#
+# CONFIG_PARPORT is not set
+
+#
+# Plug and Play support
+#
+# CONFIG_PNPACPI is not set
+
+#
+# Block devices
+#
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=m
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_UB is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=6144
+CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+
+#
+# ATA/ATAPI/MFM/RLL support
+#
+CONFIG_IDE=m
+CONFIG_IDE_MAX_HWIFS=4
+CONFIG_BLK_DEV_IDE=m
+
+#
+# Please see Documentation/ide.txt for help/info on IDE drives
+#
+# CONFIG_BLK_DEV_IDE_SATA is not set
+CONFIG_BLK_DEV_IDEDISK=m
+# CONFIG_IDEDISK_MULTI_MODE is not set
+# CONFIG_BLK_DEV_IDECS is not set
+# CONFIG_BLK_DEV_IDECD is not set
+# CONFIG_BLK_DEV_IDETAPE is not set
+# CONFIG_BLK_DEV_IDEFLOPPY is not set
+# CONFIG_BLK_DEV_IDESCSI is not set
+# CONFIG_IDE_TASK_IOCTL is not set
+
+#
+# IDE chipset support/bugfixes
+#
+# CONFIG_IDE_GENERIC is not set
+# CONFIG_IDE_ARM is not set
+# CONFIG_BLK_DEV_IDEDMA is not set
+# CONFIG_BLK_DEV_HD is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+CONFIG_SCSI=m
+# CONFIG_SCSI_TGT is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_SCSI_PROC_FS is not set
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
+# CONFIG_BLK_DEV_SD is not set
+# CONFIG_CHR_DEV_ST is not set
+# CONFIG_CHR_DEV_OSST is not set
+# CONFIG_BLK_DEV_SR is not set
+# CONFIG_CHR_DEV_SG is not set
+# CONFIG_CHR_DEV_SCH is not set
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
+# CONFIG_SCSI_MULTI_LUN is not set
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+
+#
+# SCSI Transports
+#
+# CONFIG_SCSI_SPI_ATTRS is not set
+# CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+
+#
+# SCSI low-level drivers
+#
+# CONFIG_ISCSI_TCP is not set
+# CONFIG_SCSI_DEBUG is not set
+
+#
+# PCMCIA SCSI adapter support
+#
+# CONFIG_PCMCIA_AHA152X is not set
+# CONFIG_PCMCIA_FDOMAIN is not set
+# CONFIG_PCMCIA_NINJA_SCSI is not set
+# CONFIG_PCMCIA_QLOGIC is not set
+# CONFIG_PCMCIA_SYM53C500 is not set
+
+#
+# Serial ATA (prod) and Parallel ATA (experimental) drivers
+#
+# CONFIG_ATA is not set
+
+#
+# Multi-device support (RAID and LVM)
+#
+# CONFIG_MD is not set
+
+#
+# Fusion MPT device support
+#
+# CONFIG_FUSION is not set
+
+#
+# IEEE 1394 (FireWire) support
+#
+
+#
+# I2O device support
+#
+
+#
+# Network device support
+#
+CONFIG_NETDEVICES=y
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+
+#
+# PHY device support
+#
+
+#
+# Ethernet (10 or 100Mbit)
+#
+# CONFIG_NET_ETHERNET is not set
+
+#
+# Ethernet (1000 Mbit)
+#
+
+#
+# Ethernet (10000 Mbit)
+#
+
+#
+# Token Ring devices
+#
+
+#
+# Wireless LAN (non-hamradio)
+#
+CONFIG_NET_RADIO=y
+# CONFIG_NET_WIRELESS_RTNETLINK is not set
+
+#
+# Obsolete Wireless cards support (pre-802.11)
+#
+# CONFIG_STRIP is not set
+# CONFIG_PCMCIA_WAVELAN is not set
+# CONFIG_PCMCIA_NETWAVE is not set
+
+#
+# Wireless 802.11 Frequency Hopping cards support
+#
+# CONFIG_PCMCIA_RAYCS is not set
+
+#
+# Wireless 802.11b ISA/PCI cards support
+#
+# CONFIG_HERMES is not set
+# CONFIG_ATMEL is not set
+
+#
+# Wireless 802.11b Pcmcia/Cardbus cards support
+#
+# CONFIG_AIRO_CS is not set
+# CONFIG_PCMCIA_WL3501 is not set
+# CONFIG_USB_ZD1201 is not set
+CONFIG_HOSTAP=m
+# CONFIG_HOSTAP_FIRMWARE is not set
+# CONFIG_HOSTAP_CS is not set
+# CONFIG_ACX is not set
+CONFIG_NET_WIRELESS=y
+
+#
+# PCMCIA network device support
+#
+# CONFIG_NET_PCMCIA is not set
+
+#
+# Wan interfaces
+#
+# CONFIG_WAN is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+
+#
+# ISDN subsystem
+#
+# CONFIG_ISDN is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+
+#
+# Userland interfaces
+#
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_JOYDEV is not set
+CONFIG_INPUT_TSDEV=m
+CONFIG_INPUT_TSDEV_SCREEN_X=240
+CONFIG_INPUT_TSDEV_SCREEN_Y=320
+CONFIG_INPUT_EVDEV=m
+# CONFIG_INPUT_EVBUG is not set
+# CONFIG_INPUT_LED_TRIGGER is not set
+
+#
+# Input Device Drivers
+#
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_JOYSTICK is not set
+CONFIG_INPUT_TOUCHSCREEN=y
+# CONFIG_TOUCHSCREEN_GUNZE is not set
+# CONFIG_TOUCHSCREEN_ELO is not set
+# CONFIG_TOUCHSCREEN_MTOUCH is not set
+# CONFIG_TOUCHSCREEN_MK712 is not set
+CONFIG_TOUCHSCREEN_WM97XX=m
+CONFIG_TOUCHSCREEN_WM9705=y
+CONFIG_TOUCHSCREEN_WM9712=y
+CONFIG_TOUCHSCREEN_WM9713=y
+# CONFIG_TOUCHSCREEN_PENMOUNT is not set
+# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
+# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
+# CONFIG_TOUCHSCREEN_UCB1400 is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+# CONFIG_SERIAL_PXA is not set
+# CONFIG_RS232_SERIAL is not set
+CONFIG_UNIX98_PTYS=y
+# CONFIG_LEGACY_PTYS is not set
+
+#
+# IPMI
+#
+# CONFIG_IPMI_HANDLER is not set
+
+#
+# Watchdog Cards
+#
+# CONFIG_WATCHDOG is not set
+CONFIG_HW_RANDOM=m
+# CONFIG_NVRAM is not set
+# CONFIG_SA1100_RTC is not set
+# CONFIG_DTLK is not set
+# CONFIG_R3964 is not set
+# CONFIG_TIHTC is not set
+
+#
+# PCMCIA character devices
+#
+# CONFIG_SYNCLINK_CS is not set
+# CONFIG_CARDMAN_4000 is not set
+# CONFIG_CARDMAN_4040 is not set
+# CONFIG_RAW_DRIVER is not set
+
+#
+# TPM devices
+#
+# CONFIG_TCG_TPM is not set
+
+#
+# I2C support
+#
+# CONFIG_I2C is not set
+
+#
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+
+#
+# Dallas's 1-wire bus
+#
+# CONFIG_W1 is not set
+
+#
+# Hardware Monitoring support
+#
+# CONFIG_HWMON is not set
+# CONFIG_HWMON_VID is not set
+# CONFIG_POWER_SUPPLY is not set
+
+#
+# L3 serial bus support
+#
+# CONFIG_L3 is not set
+
+#
+# Misc devices
+#
+
+#
+# Multimedia Capabilities Port drivers
+#
+# CONFIG_ADC is not set
+
+#
+# Compaq/iPAQ Drivers
+#
+
+#
+# Compaq/HP iPAQ Drivers
+#
+# CONFIG_IPAQ_SLEEVE is not set
+# CONFIG_SLEEVE_DEBUG is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_ASIC2 is not set
+# CONFIG_HTC_ASIC3 is not set
+# CONFIG_HTC_PASIC3 is not set
+# CONFIG_HTC_EGPIO is not set
+# CONFIG_HTC_BBKEYS is not set
+# CONFIG_HTC_ASIC3_DS1WM is not set
+# CONFIG_SOC_SAMCOP is not set
+# CONFIG_SOC_HAMCOP is not set
+# CONFIG_SOC_MQ11XX is not set
+CONFIG_SOC_T7L66XB=y
+# CONFIG_SOC_TC6387XB is not set
+CONFIG_SOC_TC6393XB=y
+# CONFIG_SOC_TSC2101 is not set
+# CONFIG_SOC_TSC2200 is not set
+
+#
+# LED devices
+#
+# CONFIG_NEW_LEDS is not set
+
+#
+# LED drivers
+#
+
+#
+# LED Triggers
+#
+# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+
+#
+# Digital Video Broadcasting Devices
+#
+# CONFIG_DVB is not set
+# CONFIG_USB_DABUSB is not set
+
+#
+# Graphics support
+#
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+CONFIG_LCD_CLASS_DEVICE=y
+CONFIG_BACKLIGHT_CORGI=y
+CONFIG_FB=y
+# CONFIG_FIRMWARE_EDID is not set
+# CONFIG_FB_DDC is not set
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+# CONFIG_FB_MODE_HELPERS is not set
+# CONFIG_FB_TILEBLITTING is not set
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_IMAGEON is not set
+# CONFIG_FB_S1D13XXX is not set
+CONFIG_FB_PXA=y
+# CONFIG_FB_PXA_PARAMETERS is not set
+# CONFIG_FB_MBX is not set
+CONFIG_FB_W100=y
+# CONFIG_FB_VIRTUAL is not set
+# CONFIG_FB_VSFB is not set
+
+#
+# Console display driver support
+#
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+CONFIG_FONTS=y
+# CONFIG_FONT_8x8 is not set
+# CONFIG_FONT_8x16 is not set
+# CONFIG_FONT_6x11 is not set
+# CONFIG_FONT_7x14 is not set
+# CONFIG_FONT_PEARL_8x8 is not set
+CONFIG_FONT_ACORN_8x8=y
+# CONFIG_FONT_MINI_4x6 is not set
+# CONFIG_FONT_SUN8x16 is not set
+# CONFIG_FONT_SUN12x22 is not set
+# CONFIG_FONT_10x18 is not set
+
+#
+# Logo configuration
+#
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_LOGO_LINUX_CLUT224=y
+
+#
+# Sound
+#
+CONFIG_SOUND=y
+
+#
+# Advanced Linux Sound Architecture
+#
+CONFIG_SND=m
+CONFIG_SND_TIMER=m
+CONFIG_SND_PCM=m
+# CONFIG_SND_SEQUENCER is not set
+CONFIG_SND_OSSEMUL=y
+CONFIG_SND_MIXER_OSS=m
+CONFIG_SND_PCM_OSS=m
+CONFIG_SND_PCM_OSS_PLUGINS=y
+CONFIG_SND_DYNAMIC_MINORS=y
+CONFIG_SND_SUPPORT_OLD_API=y
+CONFIG_SND_VERBOSE_PROCFS=y
+CONFIG_SND_VERBOSE_PRINTK=y
+# CONFIG_SND_DEBUG is not set
+
+#
+# Generic devices
+#
+# CONFIG_SND_DUMMY is not set
+# CONFIG_SND_MTPAV is not set
+# CONFIG_SND_SERIAL_U16550 is not set
+# CONFIG_SND_MPU401 is not set
+
+#
+# ALSA ARM devices
+#
+# CONFIG_SND_PXA2XX_AC97 is not set
+# CONFIG_SND_RECON is not set
+
+#
+# USB devices
+#
+# CONFIG_SND_USB_AUDIO is not set
+
+#
+# PCMCIA devices
+#
+# CONFIG_SND_VXPOCKET is not set
+# CONFIG_SND_PDAUDIOCF is not set
+
+#
+# SoC audio support
+#
+CONFIG_SND_SOC_AC97_BUS=y
+CONFIG_SND_SOC=m
+
+#
+# SoC Platforms
+#
+
+#
+# SoC Audio for the Atmel AT91
+#
+
+#
+# SoC Audio for the Intel PXA2xx
+#
+CONFIG_SND_PXA2XX_SOC=m
+CONFIG_SND_PXA2XX_SOC_AC97=m
+CONFIG_SND_PXA2XX_SOC_E740_WM9705=m
+CONFIG_SND_PXA2XX_SOC_E750_WM9705=m
+CONFIG_SND_PXA2XX_SOC_E800_WM9712=m
+# CONFIG_SND_PXA2XX_SOC_MAGICIAN is not set
+# CONFIG_SND_PXA2XX_SOC_BLUEANGEL is not set
+# CONFIG_SND_PXA2XX_SOC_H5000 is not set
+
+#
+# SoC Audio for the Freescale i.MX
+#
+
+#
+# SoC Audio for the Samsung S3C24XX
+#
+# CONFIG_SND_SOC_AC97_CODEC is not set
+# CONFIG_SND_SOC_WM8711 is not set
+# CONFIG_SND_SOC_WM8510 is not set
+# CONFIG_SND_SOC_WM8731 is not set
+# CONFIG_SND_SOC_WM8750 is not set
+# CONFIG_SND_SOC_WM8753 is not set
+# CONFIG_SND_SOC_WM8772 is not set
+# CONFIG_SND_SOC_WM8971 is not set
+# CONFIG_SND_SOC_WM8956 is not set
+# CONFIG_SND_SOC_WM8960 is not set
+# CONFIG_SND_SOC_WM8976 is not set
+# CONFIG_SND_SOC_WM8974 is not set
+# CONFIG_SND_SOC_WM8980 is not set
+CONFIG_SND_SOC_WM9705=m
+# CONFIG_SND_SOC_WM9713 is not set
+CONFIG_SND_SOC_WM9712=m
+# CONFIG_SND_SOC_UDA1380 is not set
+# CONFIG_SND_SOC_AK4535 is not set
+
+#
+# Open Sound System
+#
+# CONFIG_SOUND_PRIME is not set
+CONFIG_AC97_BUS=m
+
+#
+# HID Devices
+#
+CONFIG_HID=y
+# CONFIG_HID_DEBUG is not set
+
+#
+# USB support
+#
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+CONFIG_USB=m
+CONFIG_USB_DEBUG=y
+
+#
+# Miscellaneous USB options
+#
+CONFIG_USB_DEVICEFS=y
+CONFIG_USB_DYNAMIC_MINORS=y
+# CONFIG_USB_SUSPEND is not set
+# CONFIG_USB_OTG is not set
+
+#
+# USB Host Controller Drivers
+#
+# CONFIG_USB_ISP116X_HCD is not set
+# CONFIG_USB_OHCI_HCD is not set
+# CONFIG_USB_SL811_HCD is not set
+
+#
+# USB Device Class drivers
+#
+# CONFIG_USB_ACM is not set
+# CONFIG_USB_PRINTER is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# may also be needed; see USB_STORAGE Help for more information
+#
+CONFIG_USB_STORAGE=m
+# CONFIG_USB_STORAGE_DEBUG is not set
+# CONFIG_USB_STORAGE_DATAFAB is not set
+# CONFIG_USB_STORAGE_FREECOM is not set
+# CONFIG_USB_STORAGE_ISD200 is not set
+# CONFIG_USB_STORAGE_DPCM is not set
+# CONFIG_USB_STORAGE_USBAT is not set
+# CONFIG_USB_STORAGE_SDDR09 is not set
+# CONFIG_USB_STORAGE_SDDR55 is not set
+# CONFIG_USB_STORAGE_JUMPSHOT is not set
+# CONFIG_USB_STORAGE_ALAUDA is not set
+# CONFIG_USB_STORAGE_KARMA is not set
+# CONFIG_USB_LIBUSUAL is not set
+
+#
+# USB Input Devices
+#
+# CONFIG_USB_HID is not set
+
+#
+# USB HID Boot Protocol drivers
+#
+# CONFIG_USB_KBD is not set
+# CONFIG_USB_MOUSE is not set
+# CONFIG_USB_AIPTEK is not set
+# CONFIG_USB_WACOM is not set
+# CONFIG_USB_ACECAD is not set
+# CONFIG_USB_KBTAB is not set
+# CONFIG_USB_POWERMATE is not set
+# CONFIG_USB_TOUCHSCREEN is not set
+# CONFIG_USB_YEALINK is not set
+# CONFIG_USB_XPAD is not set
+# CONFIG_USB_ATI_REMOTE is not set
+# CONFIG_USB_ATI_REMOTE2 is not set
+# CONFIG_USB_KEYSPAN_REMOTE is not set
+# CONFIG_USB_APPLETOUCH is not set
+# CONFIG_USB_GTCO is not set
+
+#
+# USB Imaging devices
+#
+# CONFIG_USB_MDC800 is not set
+# CONFIG_USB_MICROTEK is not set
+
+#
+# USB Network Adapters
+#
+# CONFIG_USB_CATC is not set
+# CONFIG_USB_KAWETH is not set
+# CONFIG_USB_PEGASUS is not set
+# CONFIG_USB_RTL8150 is not set
+# CONFIG_USB_USBNET_MII is not set
+# CONFIG_USB_USBNET is not set
+# CONFIG_USB_MON is not set
+
+#
+# USB port drivers
+#
+
+#
+# USB Serial Converter support
+#
+# CONFIG_USB_SERIAL is not set
+
+#
+# USB Miscellaneous drivers
+#
+# CONFIG_USB_EMI62 is not set
+# CONFIG_USB_EMI26 is not set
+# CONFIG_USB_ADUTUX is not set
+# CONFIG_USB_AUERSWALD is not set
+# CONFIG_USB_RIO500 is not set
+# CONFIG_USB_LEGOTOWER is not set
+# CONFIG_USB_LCD is not set
+# CONFIG_USB_BERRY_CHARGE is not set
+# CONFIG_USB_LED is not set
+# CONFIG_USB_CYPRESS_CY7C63 is not set
+# CONFIG_USB_CYTHERM is not set
+# CONFIG_USB_PHIDGET is not set
+# CONFIG_USB_IDMOUSE is not set
+# CONFIG_USB_FTDI_ELAN is not set
+# CONFIG_USB_APPLEDISPLAY is not set
+# CONFIG_USB_LD is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_IOWARRIOR is not set
+# CONFIG_USB_TEST is not set
+
+#
+# USB DSL modem support
+#
+
+#
+# USB Gadget Support
+#
+CONFIG_USB_GADGET=y
+# CONFIG_USB_GADGET_DEBUG_FILES is not set
+CONFIG_USB_GADGET_SELECTED=y
+# CONFIG_USB_GADGET_NET2280 is not set
+CONFIG_USB_GADGET_PXA2XX=y
+CONFIG_USB_PXA2XX=y
+# CONFIG_USB_PXA2XX_SMALL is not set
+# CONFIG_USB_GADGET_PXA27X is not set
+# CONFIG_USB_GADGET_GOKU is not set
+# CONFIG_USB_GADGET_MQ11XX is not set
+# CONFIG_USB_GADGET_LH7A40X is not set
+# CONFIG_USB_GADGET_S3C2410 is not set
+# CONFIG_USB_GADGET_OMAP is not set
+# CONFIG_USB_GADGET_AT91 is not set
+# CONFIG_USB_GADGET_DUMMY_HCD is not set
+# CONFIG_USB_GADGET_DUALSPEED is not set
+# CONFIG_USB_ZERO is not set
+CONFIG_USB_ETH=y
+# CONFIG_USB_ETH_RNDIS is not set
+# CONFIG_USB_GADGETFS is not set
+# CONFIG_USB_FILE_STORAGE is not set
+# CONFIG_USB_G_SERIAL is not set
+# CONFIG_USB_MIDI_GADGET is not set
+# CONFIG_USB_G_CHAR is not set
+# CONFIG_USB_PXA2XX_GPIO is not set
+
+#
+# MMC/SD Card support
+#
+CONFIG_MMC=y
+# CONFIG_MMC_DEBUG is not set
+CONFIG_MMC_BLOCK=y
+# CONFIG_MMC_PXA is not set
+CONFIG_MMC_TMIO=y
+# CONFIG_MMC_SAMCOP is not set
+
+#
+# Real Time Clock
+#
+CONFIG_RTC_LIB=y
+# CONFIG_RTC_CLASS is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4DEV_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_QUOTA is not set
+CONFIG_DNOTIFY=y
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+CONFIG_FAT_FS=y
+# CONFIG_MSDOS_FS is not set
+CONFIG_VFAT_FS=y
+CONFIG_FAT_DEFAULT_CODEPAGE=437
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+# CONFIG_HUGETLB_PAGE is not set
+CONFIG_RAMFS=y
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+CONFIG_JFFS2_FS=m
+CONFIG_JFFS2_FS_DEBUG=0
+CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_SUMMARY is not set
+# CONFIG_JFFS2_FS_XATTR is not set
+# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
+CONFIG_JFFS2_ZLIB=y
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+
+#
+# Network File Systems
+#
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFS_DIRECTIO is not set
+# CONFIG_NFSD is not set
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+# CONFIG_9P_FS is not set
+
+#
+# Partition Types
+#
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_ACORN_PARTITION is not set
+# CONFIG_OSF_PARTITION is not set
+# CONFIG_AMIGA_PARTITION is not set
+# CONFIG_ATARI_PARTITION is not set
+# CONFIG_MAC_PARTITION is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_BSD_DISKLABEL is not set
+# CONFIG_MINIX_SUBPARTITION is not set
+# CONFIG_SOLARIS_X86_PARTITION is not set
+# CONFIG_UNIXWARE_DISKLABEL is not set
+# CONFIG_LDM_PARTITION is not set
+# CONFIG_SGI_PARTITION is not set
+# CONFIG_ULTRIX_PARTITION is not set
+# CONFIG_SUN_PARTITION is not set
+# CONFIG_KARMA_PARTITION is not set
+# CONFIG_EFI_PARTITION is not set
+
+#
+# Native Language Support
+#
+CONFIG_NLS=y
+CONFIG_NLS_DEFAULT="iso8859-1"
+CONFIG_NLS_CODEPAGE_437=y
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+# CONFIG_NLS_CODEPAGE_850 is not set
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+# CONFIG_NLS_ASCII is not set
+CONFIG_NLS_ISO8859_1=y
+# CONFIG_NLS_ISO8859_2 is not set
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+# CONFIG_NLS_ISO8859_15 is not set
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+# CONFIG_NLS_UTF8 is not set
+
+#
+# Distributed Lock Manager
+#
+# CONFIG_DLM is not set
+
+#
+# Profiling support
+#
+# CONFIG_PROFILING is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_MUST_CHECK=y
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_HEADERS_CHECK is not set
+# CONFIG_DEBUG_KERNEL is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_DEBUG_BUGVERBOSE is not set
+CONFIG_FRAME_POINTER=y
+# CONFIG_DEBUG_USER is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+
+#
+# Cryptographic options
+#
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_ALGAPI=m
+CONFIG_CRYPTO_BLKCIPHER=m
+CONFIG_CRYPTO_MANAGER=m
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_MD4 is not set
+# CONFIG_CRYPTO_MD5 is not set
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_GF128MUL is not set
+CONFIG_CRYPTO_ECB=m
+CONFIG_CRYPTO_CBC=m
+CONFIG_CRYPTO_PCBC=m
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_DES is not set
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_AES is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_TEA is not set
+CONFIG_CRYPTO_ARC4=m
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_TEST is not set
+
+#
+# Hardware crypto devices
+#
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+CONFIG_CRC32=y
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=m
+CONFIG_ZLIB_DEFLATE=m
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 656d49661a29..b08f55d906c8 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -51,6 +51,50 @@ config PXA_SHARPSL
 	  SL-C3000 (Spitz), SL-C3100 (Borzoi) or SL-C6000x (Tosa)
 	  handheld computer.
 
+config ARCH_PXA_ESERIES
+	bool "PXA based Toshiba e-series PDAs"
+	select PXA25x
+
+config MACH_E330
+	bool "Toshiba e330"
+	default y
+	depends on ARCH_PXA_ESERIES
+	help
+	  Say Y here if you intend to run this kernel on a Toshiba
+	  e330 family PDA.
+
+config MACH_E740
+	bool "Toshiba e740"
+	default y
+	depends on ARCH_PXA_ESERIES
+	help
+	  Say Y here if you intend to run this kernel on a Toshiba
+	  e740 family PDA.
+
+config MACH_E750
+	bool "Toshiba e750"
+	default y
+	depends on ARCH_PXA_ESERIES
+	help
+	  Say Y here if you intend to run this kernel on a Toshiba
+	  e750 family PDA.
+
+config MACH_E400
+	bool "Toshiba e400"
+	default y
+	depends on ARCH_PXA_ESERIES
+	help
+	  Say Y here if you intend to run this kernel on a Toshiba
+	  e400 family PDA.
+
+config MACH_E800
+	bool "Toshiba e800"
+	default y
+	depends on ARCH_PXA_ESERIES
+	help
+	  Say Y here if you intend to run this kernel on a Toshiba
+	  e800 family PDA.
+
 config MACH_TRIZEPS4
 	bool "Keith und Koep Trizeps4 DIMM-Module"
 	select PXA27x
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index f7444c7a9227..04f8323c8c89 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_MACH_AKITA)	+= akita-ioexp.o
 obj-$(CONFIG_MACH_POODLE)	+= poodle.o corgi_ssp.o
 obj-$(CONFIG_MACH_TOSA)		+= tosa.o
 obj-$(CONFIG_MACH_EM_X270)	+= em-x270.o
+obj-$(CONFIG_ARCH_PXA_ESERIES)	+= eseries.o
 
 ifeq ($(CONFIG_MACH_ZYLONITE),y)
   obj-y				+= zylonite.o
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
new file mode 100644
index 000000000000..ee0ae93c876a
--- /dev/null
+++ b/arch/arm/mach-pxa/eseries.c
@@ -0,0 +1,101 @@
+/*
+ * Hardware definitions for the Toshiba eseries PDAs
+ *
+ * Copyright (c) 2003 Ian Molton <spyro@f2s.com>
+ *
+ * This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ */
+
+#include <linux/init.h>
+
+#include <asm/setup.h>
+#include <asm/mach/arch.h>
+#include <asm/arch/hardware.h>
+#include <asm/mach-types.h>
+
+#include <generic.h>
+
+/* Only e800 has 128MB RAM */
+static void __init eseries_fixup(struct machine_desc *desc,
+                      struct tag *tags, char **cmdline, struct meminfo *mi)
+{
+	mi->nr_banks=1;
+	mi->bank[0].start = 0xa0000000;
+	mi->bank[0].node = 0;
+	if (machine_is_e800())
+		mi->bank[0].size = (128*1024*1024);
+	else
+		mi->bank[0].size = (64*1024*1024);
+}
+
+/* e-series machine definitions */
+
+#ifdef CONFIG_MACH_E330
+MACHINE_START(E330, "Toshiba e330")
+        /* Maintainer: Ian Molton (spyro@f2s.com) */
+        .phys_io        = 0x40000000,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .boot_params    = 0xa0000100,
+        .map_io         = pxa_map_io,
+        .init_irq       = pxa25x_init_irq,
+        .fixup          = eseries_fixup,
+        .timer = &pxa_timer,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_E740
+MACHINE_START(E740, "Toshiba e740")
+        /* Maintainer: Ian Molton (spyro@f2s.com) */
+        .phys_io        = 0x40000000,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .boot_params    = 0xa0000100,
+        .map_io         = pxa_map_io,
+        .init_irq       = pxa25x_init_irq,
+        .fixup          = eseries_fixup,
+        .timer = &pxa_timer,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_E750
+MACHINE_START(E750, "Toshiba e750")
+        /* Maintainer: Ian Molton (spyro@f2s.com) */
+        .phys_io        = 0x40000000,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .boot_params    = 0xa0000100,
+        .map_io         = pxa_map_io,
+        .init_irq       = pxa25x_init_irq,
+        .fixup          = eseries_fixup,
+        .timer = &pxa_timer,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_E400
+MACHINE_START(E400, "Toshiba e400")
+        /* Maintainer: Ian Molton (spyro@f2s.com) */
+        .phys_io        = 0x40000000,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .boot_params    = 0xa0000100,
+        .map_io         = pxa_map_io,
+        .init_irq       = pxa25x_init_irq,
+        .fixup          = eseries_fixup,
+        .timer = &pxa_timer,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_E800
+MACHINE_START(E800, "Toshiba e800")
+        /* Maintainer: Ian Molton (spyro@f2s.com) */
+        .phys_io        = 0x40000000,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .boot_params    = 0xa0000100,
+        .map_io         = pxa_map_io,
+        .init_irq       = pxa25x_init_irq,
+        .fixup          = eseries_fixup,
+        .timer = &pxa_timer,
+MACHINE_END
+#endif
+
-- 
cgit v1.2.3-59-g8ed1b


From e5c271ec3bdfaca5e8d47a9e63cfc0bf889881aa Mon Sep 17 00:00:00 2001
From: Philipp Zabel <philipp.zabel@gmail.com>
Date: Thu, 22 Nov 2007 17:59:11 +0100
Subject: [ARM] 4664/1: Add basic support for HTC Magician PDA phones

This includes irda, gpio keys, pxafb, backlight, ohci and flash
(read-only).

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/Kconfig           |   6 +
 arch/arm/mach-pxa/Makefile          |   1 +
 arch/arm/mach-pxa/magician.c        | 218 ++++++++++++++++++++++++++++++++++++
 include/asm-arm/arch-pxa/magician.h | 111 ++++++++++++++++++
 4 files changed, 336 insertions(+)
 create mode 100644 arch/arm/mach-pxa/magician.c
 create mode 100644 include/asm-arm/arch-pxa/magician.h

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index b08f55d906c8..619f6fc2bfe1 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -112,6 +112,12 @@ config MACH_ARMCORE
 	select PXA27x
 	select IWMMXT
 
+config MACH_MAGICIAN
+	bool "Enable HTC Magician Support"
+	depends on ARCH_PXA
+	select PXA27x
+	select IWMMXT
+
 endchoice
 
 if PXA_SHARPSL
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 04f8323c8c89..fca4e819dc5d 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_MACH_AKITA)	+= akita-ioexp.o
 obj-$(CONFIG_MACH_POODLE)	+= poodle.o corgi_ssp.o
 obj-$(CONFIG_MACH_TOSA)		+= tosa.o
 obj-$(CONFIG_MACH_EM_X270)	+= em-x270.o
+obj-$(CONFIG_MACH_MAGICIAN)	+= magician.o
 obj-$(CONFIG_ARCH_PXA_ESERIES)	+= eseries.o
 
 ifeq ($(CONFIG_MACH_ZYLONITE),y)
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
new file mode 100644
index 000000000000..d98ef7ada2f8
--- /dev/null
+++ b/arch/arm/mach-pxa/magician.c
@@ -0,0 +1,218 @@
+/*
+ * Support for HTC Magician PDA phones:
+ * i-mate JAM, O2 Xda mini, Orange SPV M500, Qtek s100, Qtek s110
+ * and T-Mobile MDA Compact.
+ *
+ * Copyright (c) 2006-2007 Philipp Zabel
+ *
+ * Based on hx4700.c, spitz.c and others.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/physmap.h>
+
+#include <asm/gpio.h>
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/arch/magician.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/pxafb.h>
+#include <asm/arch/irda.h>
+#include <asm/arch/ohci.h>
+
+#include "generic.h"
+
+/*
+ * IRDA
+ */
+
+static void magician_irda_transceiver_mode(struct device *dev, int mode)
+{
+	gpio_set_value(GPIO83_MAGICIAN_nIR_EN, mode & IR_OFF);
+}
+
+static struct pxaficp_platform_data magician_ficp_info = {
+	.transceiver_cap  = IR_SIRMODE | IR_OFF,
+	.transceiver_mode = magician_irda_transceiver_mode,
+};
+
+/*
+ * GPIO Keys
+ */
+
+static struct gpio_keys_button magician_button_table[] = {
+	{KEY_POWER,      GPIO0_MAGICIAN_KEY_POWER,      0, "Power button"},
+	{KEY_ESC,        GPIO37_MAGICIAN_KEY_HANGUP,    0, "Hangup button"},
+	{KEY_F10,        GPIO38_MAGICIAN_KEY_CONTACTS,  0, "Contacts button"},
+	{KEY_CALENDAR,   GPIO90_MAGICIAN_KEY_CALENDAR,  0, "Calendar button"},
+	{KEY_CAMERA,     GPIO91_MAGICIAN_KEY_CAMERA,    0, "Camera button"},
+	{KEY_UP,         GPIO93_MAGICIAN_KEY_UP,        0, "Up button"},
+	{KEY_DOWN,       GPIO94_MAGICIAN_KEY_DOWN,      0, "Down button"},
+	{KEY_LEFT,       GPIO95_MAGICIAN_KEY_LEFT,      0, "Left button"},
+	{KEY_RIGHT,      GPIO96_MAGICIAN_KEY_RIGHT,     0, "Right button"},
+	{KEY_KPENTER,    GPIO97_MAGICIAN_KEY_ENTER,     0, "Action button"},
+	{KEY_RECORD,     GPIO98_MAGICIAN_KEY_RECORD,    0, "Record button"},
+	{KEY_VOLUMEUP,   GPIO100_MAGICIAN_KEY_VOL_UP,   0, "Volume up"},
+	{KEY_VOLUMEDOWN, GPIO101_MAGICIAN_KEY_VOL_DOWN, 0, "Volume down"},
+	{KEY_PHONE,      GPIO102_MAGICIAN_KEY_PHONE,    0, "Phone button"},
+	{KEY_PLAY,       GPIO99_MAGICIAN_HEADPHONE_IN,  0, "Headset button"},
+};
+
+static struct gpio_keys_platform_data gpio_keys_data = {
+	.buttons  = magician_button_table,
+	.nbuttons = ARRAY_SIZE(magician_button_table),
+};
+
+static struct platform_device gpio_keys = {
+	.name = "gpio-keys",
+	.dev  = {
+		.platform_data = &gpio_keys_data,
+	},
+	.id   = -1,
+};
+
+/*
+ * LCD - Toppoly TD028STEB1
+ */
+
+static struct pxafb_mode_info toppoly_modes[] = {
+	{
+		.pixclock     = 96153,
+		.bpp          = 16,
+		.xres         = 240,
+		.yres         = 320,
+		.hsync_len    = 11,
+		.vsync_len    = 3,
+		.left_margin  = 19,
+		.upper_margin = 2,
+		.right_margin = 10,
+		.lower_margin = 2,
+		.sync         = 0,
+	},
+};
+
+static struct pxafb_mach_info toppoly_info = {
+	.modes       = toppoly_modes,
+	.num_modes   = 1,
+	.fixed_modes = 1,
+	.lccr0       = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
+	.lccr3       = LCCR3_PixRsEdg,
+};
+
+/*
+ * Backlight
+ */
+
+static void magician_set_bl_intensity(int intensity)
+{
+	if (intensity) {
+		PWM_CTRL0 = 1;
+		PWM_PERVAL0 = 0xc8;
+		PWM_PWDUTY0 = intensity;
+		pxa_set_cken(CKEN_PWM0, 1);
+	} else {
+		pxa_set_cken(CKEN_PWM0, 0);
+	}
+}
+
+static struct generic_bl_info backlight_info = {
+	.default_intensity = 0x64,
+	.limit_mask        = 0x0b,
+	.max_intensity     = 0xc7,
+	.set_bl_intensity  = magician_set_bl_intensity,
+};
+
+static struct platform_device backlight = {
+	.name = "corgi-bl",
+	.dev  = {
+		.platform_data = &backlight_info,
+	},
+	.id   = -1,
+};
+
+
+/*
+ * USB OHCI
+ */
+
+static int magician_ohci_init(struct device *dev)
+{
+	UHCHR = (UHCHR | UHCHR_SSEP2 | UHCHR_PCPL | UHCHR_CGR) &
+	    ~(UHCHR_SSEP1 | UHCHR_SSEP3 | UHCHR_SSE);
+
+	return 0;
+}
+
+static struct pxaohci_platform_data magician_ohci_info = {
+	.port_mode    = PMM_PERPORT_MODE,
+	.init         = magician_ohci_init,
+	.power_budget = 0,
+};
+
+
+/*
+ * StrataFlash
+ */
+
+#define PXA_CS_SIZE		0x04000000
+
+static struct resource strataflash_resource = {
+	.start = PXA_CS0_PHYS,
+	.end   = PXA_CS0_PHYS + PXA_CS_SIZE - 1,
+	.flags = IORESOURCE_MEM,
+};
+
+static struct physmap_flash_data strataflash_data = {
+	.width = 4,
+};
+
+static struct platform_device strataflash = {
+	.name          = "physmap-flash",
+	.id            = -1,
+	.num_resources = 1,
+	.resource      = &strataflash_resource,
+	.dev = {
+		.platform_data = &strataflash_data,
+	},
+};
+
+/*
+ * Platform devices
+ */
+
+static struct platform_device *devices[] __initdata = {
+	&gpio_keys,
+	&backlight,
+	&strataflash,
+};
+
+static void __init magician_init(void)
+{
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+	pxa_set_ohci_info(&magician_ohci_info);
+	pxa_set_ficp_info(&magician_ficp_info);
+	set_pxa_fb_info(&toppoly_info);
+}
+
+
+MACHINE_START(MAGICIAN, "HTC Magician")
+	.phys_io = 0x40000000,
+	.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
+	.boot_params = 0xa0000100,
+	.map_io = pxa_map_io,
+	.init_irq = pxa27x_init_irq,
+	.init_machine = magician_init,
+	.timer = &pxa_timer,
+MACHINE_END
diff --git a/include/asm-arm/arch-pxa/magician.h b/include/asm-arm/arch-pxa/magician.h
new file mode 100644
index 000000000000..337f51f06b3a
--- /dev/null
+++ b/include/asm-arm/arch-pxa/magician.h
@@ -0,0 +1,111 @@
+/*
+ * GPIO and IRQ definitions for HTC Magician PDA phones
+ *
+ * Copyright (c) 2007 Philipp Zabel
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef _MAGICIAN_H_
+#define _MAGICIAN_H_
+
+#include <asm/arch/pxa-regs.h>
+
+/*
+ * PXA GPIOs
+ */
+
+#define GPIO0_MAGICIAN_KEY_POWER		0
+#define GPIO9_MAGICIAN_UNKNOWN			9
+#define GPIO10_MAGICIAN_GSM_IRQ			10
+#define GPIO11_MAGICIAN_GSM_OUT1		11
+#define GPIO13_MAGICIAN_CPLD_IRQ		13
+#define GPIO18_MAGICIAN_UNKNOWN			18
+#define GPIO22_MAGICIAN_VIBRA_EN		22
+#define GPIO26_MAGICIAN_GSM_POWER		26
+#define GPIO27_MAGICIAN_USBC_PUEN		27
+#define GPIO30_MAGICIAN_nCHARGE_EN		30
+#define GPIO37_MAGICIAN_KEY_HANGUP		37
+#define GPIO38_MAGICIAN_KEY_CONTACTS		38
+#define GPIO40_MAGICIAN_GSM_OUT2		40
+#define GPIO48_MAGICIAN_UNKNOWN			48
+#define GPIO56_MAGICIAN_UNKNOWN			56
+#define GPIO57_MAGICIAN_CAM_RESET		57
+#define GPIO83_MAGICIAN_nIR_EN			83
+#define GPIO86_MAGICIAN_GSM_RESET		86
+#define GPIO87_MAGICIAN_GSM_SELECT		87
+#define GPIO90_MAGICIAN_KEY_CALENDAR		90
+#define GPIO91_MAGICIAN_KEY_CAMERA		91
+#define GPIO93_MAGICIAN_KEY_UP			93
+#define GPIO94_MAGICIAN_KEY_DOWN		94
+#define GPIO95_MAGICIAN_KEY_LEFT		95
+#define GPIO96_MAGICIAN_KEY_RIGHT		96
+#define GPIO97_MAGICIAN_KEY_ENTER		97
+#define GPIO98_MAGICIAN_KEY_RECORD		98
+#define GPIO99_MAGICIAN_HEADPHONE_IN		99
+#define GPIO100_MAGICIAN_KEY_VOL_UP		100
+#define GPIO101_MAGICIAN_KEY_VOL_DOWN 		101
+#define GPIO102_MAGICIAN_KEY_PHONE		102
+#define GPIO103_MAGICIAN_LED_KP			103
+#define GPIO104_MAGICIAN_LCD_POWER_1 		104
+#define GPIO105_MAGICIAN_LCD_POWER_2		105
+#define GPIO106_MAGICIAN_LCD_POWER_3		106
+#define GPIO107_MAGICIAN_DS1WM_IRQ		107
+#define GPIO108_MAGICIAN_GSM_READY		108
+#define GPIO114_MAGICIAN_UNKNOWN		114
+#define GPIO115_MAGICIAN_nPEN_IRQ		115
+#define GPIO116_MAGICIAN_nCAM_EN		116
+#define GPIO119_MAGICIAN_UNKNOWN		119
+#define GPIO120_MAGICIAN_UNKNOWN		120
+
+/*
+ * PXA GPIO alternate function mode & direction
+ */
+
+#define GPIO0_MAGICIAN_KEY_POWER_MD		(0 | GPIO_IN)
+#define GPIO9_MAGICIAN_UNKNOWN_MD		(9 | GPIO_IN)
+#define GPIO10_MAGICIAN_GSM_IRQ_MD		(10 | GPIO_IN)
+#define GPIO11_MAGICIAN_GSM_OUT1_MD		(11 | GPIO_OUT)
+#define GPIO13_MAGICIAN_CPLD_IRQ_MD		(13 | GPIO_IN)
+#define GPIO18_MAGICIAN_UNKNOWN_MD		(18 | GPIO_OUT)
+#define GPIO22_MAGICIAN_VIBRA_EN_MD		(22 | GPIO_OUT)
+#define GPIO26_MAGICIAN_GSM_POWER_MD		(26 | GPIO_OUT)
+#define GPIO27_MAGICIAN_USBC_PUEN_MD		(27 | GPIO_OUT)
+#define GPIO30_MAGICIAN_nCHARGE_EN_MD		(30 | GPIO_OUT)
+#define GPIO37_MAGICIAN_KEY_HANGUP_MD		(37 | GPIO_OUT)
+#define GPIO38_MAGICIAN_KEY_CONTACTS_MD		(38 | GPIO_OUT)
+#define GPIO40_MAGICIAN_GSM_OUT2_MD		(40 | GPIO_OUT)
+#define GPIO48_MAGICIAN_UNKNOWN_MD		(48 | GPIO_OUT)
+#define GPIO56_MAGICIAN_UNKNOWN_MD		(56 | GPIO_OUT)
+#define GPIO57_MAGICIAN_CAM_RESET_MD		(57 | GPIO_OUT)
+#define GPIO83_MAGICIAN_nIR_EN_MD		(83 | GPIO_OUT)
+#define GPIO86_MAGICIAN_GSM_RESET_MD		(86 | GPIO_OUT)
+#define GPIO87_MAGICIAN_GSM_SELECT_MD		(87 | GPIO_OUT)
+#define GPIO90_MAGICIAN_KEY_CALENDAR_MD		(90 | GPIO_OUT)
+#define GPIO91_MAGICIAN_KEY_CAMERA_MD		(91 | GPIO_OUT)
+#define GPIO93_MAGICIAN_KEY_UP_MD		(93 | GPIO_IN)
+#define GPIO94_MAGICIAN_KEY_DOWN_MD		(94 | GPIO_IN)
+#define GPIO95_MAGICIAN_KEY_LEFT_MD		(95 | GPIO_IN)
+#define GPIO96_MAGICIAN_KEY_RIGHT_MD		(96 | GPIO_IN)
+#define GPIO97_MAGICIAN_KEY_ENTER_MD		(97 | GPIO_IN)
+#define GPIO98_MAGICIAN_KEY_RECORD_MD		(98 | GPIO_IN)
+#define GPIO99_MAGICIAN_HEADPHONE_IN_MD		(99 | GPIO_IN)
+#define GPIO100_MAGICIAN_KEY_VOL_UP_MD		(100 | GPIO_IN)
+#define GPIO101_MAGICIAN_KEY_VOL_DOWN_MD 	(101 | GPIO_IN)
+#define GPIO102_MAGICIAN_KEY_PHONE_MD		(102 | GPIO_IN)
+#define GPIO103_MAGICIAN_LED_KP_MD		(103 | GPIO_OUT)
+#define GPIO104_MAGICIAN_LCD_POWER_1_MD 	(104 | GPIO_OUT)
+#define GPIO105_MAGICIAN_LCD_POWER_2_MD		(105 | GPIO_OUT)
+#define GPIO106_MAGICIAN_LCD_POWER_3_MD		(106 | GPIO_OUT)
+#define GPIO107_MAGICIAN_DS1WM_IRQ_MD		(107 | GPIO_IN)
+#define GPIO108_MAGICIAN_GSM_READY_MD		(108 | GPIO_IN)
+#define GPIO114_MAGICIAN_UNKNOWN_MD		(114 | GPIO_OUT)
+#define GPIO115_MAGICIAN_nPEN_IRQ_MD		(115 | GPIO_IN)
+#define GPIO116_MAGICIAN_nCAM_EN_MD		(116 | GPIO_OUT)
+#define GPIO119_MAGICIAN_UNKNOWN_MD		(119 | GPIO_OUT)
+#define GPIO120_MAGICIAN_UNKNOWN_MD		(120 | GPIO_OUT)
+
+#endif /* _MAGICIAN_H_ */
-- 
cgit v1.2.3-59-g8ed1b


From e1d9b9532522f4a04b925e151c1790e669312c55 Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Thu, 13 Dec 2007 10:41:43 +0800
Subject: [ARM] pxa: add basic support for Littleton (PXA3xx Form Factor
 Platform)

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/Kconfig            |   5 +
 arch/arm/mach-pxa/Makefile           |   1 +
 arch/arm/mach-pxa/littleton.c        | 325 +++++++++++++++++++++++++++++++++++
 include/asm-arm/arch-pxa/littleton.h |   6 +
 4 files changed, 337 insertions(+)
 create mode 100644 arch/arm/mach-pxa/littleton.c
 create mode 100644 include/asm-arm/arch-pxa/littleton.h

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 619f6fc2bfe1..c73da5e33067 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -107,6 +107,11 @@ config MACH_ZYLONITE
 	bool "PXA3xx Development Platform"
 	select PXA3xx
 
+config MACH_LITTLETON
+	bool "PXA3xx Form Factor Platform (aka Littleton)"
+	select PXA3xx
+	select PXA_SSP
+
 config MACH_ARMCORE
 	bool "CompuLab CM-X270 modules"
 	select PXA27x
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index fca4e819dc5d..5e9aec57642d 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -30,6 +30,7 @@ ifeq ($(CONFIG_MACH_ZYLONITE),y)
   obj-$(CONFIG_CPU_PXA300)	+= zylonite_pxa300.o
   obj-$(CONFIG_CPU_PXA320)	+= zylonite_pxa320.o
 endif
+obj-$(CONFIG_MACH_LITTLETON)	+= littleton.o
 
 obj-$(CONFIG_MACH_ARMCORE)      += cm-x270.o
 
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c
new file mode 100644
index 000000000000..e408a3a89bba
--- /dev/null
+++ b/arch/arm/mach-pxa/littleton.c
@@ -0,0 +1,325 @@
+/*
+ *  linux/arch/arm/mach-pxa/littleton.c
+ *
+ *  Support for the Marvell Littleton Development Platform.
+ *
+ *  Author:	Jason Chagas (largely modified code)
+ *  Created:	Nov 20, 2006
+ *  Copyright:	(C) Copyright 2006 Marvell International Ltd.
+ *
+ *  2007-11-22  modified to align with latest kernel
+ *              eric miao <eric.miao@marvell.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  publishhed by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+
+#include <asm/types.h>
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/mfp-pxa300.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/pxafb.h>
+#include <asm/arch/ssp.h>
+#include <asm/arch/littleton.h>
+
+#include "generic.h"
+
+#define ARRAY_AND_SIZE(x)	(x), ARRAY_SIZE(x)
+
+/* Littleton MFP configurations */
+static mfp_cfg_t littleton_mfp_cfg[] __initdata = {
+	/* LCD */
+	GPIO54_LCD_LDD_0,
+	GPIO55_LCD_LDD_1,
+	GPIO56_LCD_LDD_2,
+	GPIO57_LCD_LDD_3,
+	GPIO58_LCD_LDD_4,
+	GPIO59_LCD_LDD_5,
+	GPIO60_LCD_LDD_6,
+	GPIO61_LCD_LDD_7,
+	GPIO62_LCD_LDD_8,
+	GPIO63_LCD_LDD_9,
+	GPIO64_LCD_LDD_10,
+	GPIO65_LCD_LDD_11,
+	GPIO66_LCD_LDD_12,
+	GPIO67_LCD_LDD_13,
+	GPIO68_LCD_LDD_14,
+	GPIO69_LCD_LDD_15,
+	GPIO70_LCD_LDD_16,
+	GPIO71_LCD_LDD_17,
+	GPIO72_LCD_FCLK,
+	GPIO73_LCD_LCLK,
+	GPIO74_LCD_PCLK,
+	GPIO75_LCD_BIAS,
+
+	/* SSP2 */
+	GPIO25_SSP2_SCLK,
+	GPIO17_SSP2_FRM,
+	GPIO27_SSP2_TXD,
+
+	/* Debug Ethernet */
+	GPIO90_GPIO,
+};
+
+static struct resource smc91x_resources[] = {
+	[0] = {
+		.start	= (LITTLETON_ETH_PHYS + 0x300),
+		.end	= (LITTLETON_ETH_PHYS + 0xfffff),
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
+		.end	= IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device smc91x_device = {
+	.name		= "smc91x",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(smc91x_resources),
+	.resource	= smc91x_resources,
+};
+
+#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULES)
+/* use bit 30, 31 as the indicator of command parameter number */
+#define CMD0(x)		((0x00000000) | ((x) << 9))
+#define CMD1(x, x1)	((0x40000000) | ((x) << 9) | 0x100 | (x1))
+#define CMD2(x, x1, x2)	((0x80000000) | ((x) << 18) | 0x20000 |\
+			 ((x1) << 9) | 0x100 | (x2))
+
+static uint32_t lcd_panel_reset[] = {
+	CMD0(0x1), /* reset */
+	CMD0(0x0), /* nop */
+	CMD0(0x0), /* nop */
+	CMD0(0x0), /* nop */
+};
+
+static uint32_t lcd_panel_on[] = {
+	CMD0(0x29),		/* Display ON */
+	CMD2(0xB8, 0xFF, 0xF9),	/* Output Control */
+	CMD0(0x11),		/* Sleep out */
+	CMD1(0xB0, 0x16),	/* Wake */
+};
+
+static uint32_t lcd_panel_off[] = {
+	CMD0(0x28),		/* Display OFF */
+	CMD2(0xB8, 0x80, 0x02),	/* Output Control */
+	CMD0(0x10),		/* Sleep in */
+	CMD1(0xB0, 0x00),	/* Deep stand by in */
+};
+
+static uint32_t lcd_vga_pass_through[] = {
+	CMD1(0xB0, 0x16),
+	CMD1(0xBC, 0x80),
+	CMD1(0xE1, 0x00),
+	CMD1(0x36, 0x50),
+	CMD1(0x3B, 0x00),
+};
+
+static uint32_t lcd_qvga_pass_through[] = {
+	CMD1(0xB0, 0x16),
+	CMD1(0xBC, 0x81),
+	CMD1(0xE1, 0x00),
+	CMD1(0x36, 0x50),
+	CMD1(0x3B, 0x22),
+};
+
+static uint32_t lcd_vga_transfer[] = {
+	CMD1(0xcf, 0x02), 	/* Blanking period control (1) */
+	CMD2(0xd0, 0x08, 0x04),	/* Blanking period control (2) */
+	CMD1(0xd1, 0x01),	/* CKV timing control on/off */
+	CMD2(0xd2, 0x14, 0x00),	/* CKV 1,2 timing control */
+	CMD2(0xd3, 0x1a, 0x0f),	/* OEV timing control */
+	CMD2(0xd4, 0x1f, 0xaf),	/* ASW timing control (1) */
+	CMD1(0xd5, 0x14),	/* ASW timing control (2) */
+	CMD0(0x21),		/* Invert for normally black display */
+	CMD0(0x29),		/* Display on */
+};
+
+static uint32_t lcd_qvga_transfer[] = {
+	CMD1(0xd6, 0x02),	/* Blanking period control (1) */
+	CMD2(0xd7, 0x08, 0x04),	/* Blanking period control (2) */
+	CMD1(0xd8, 0x01),	/* CKV timing control on/off */
+	CMD2(0xd9, 0x00, 0x08),	/* CKV 1,2 timing control */
+	CMD2(0xde, 0x05, 0x0a),	/* OEV timing control */
+	CMD2(0xdf, 0x0a, 0x19),	/* ASW timing control (1) */
+	CMD1(0xe0, 0x0a),	/* ASW timing control (2) */
+	CMD0(0x21),		/* Invert for normally black display */
+	CMD0(0x29),		/* Display on */
+};
+
+static uint32_t lcd_panel_config[] = {
+	CMD2(0xb8, 0xff, 0xf9),	/* Output control */
+	CMD0(0x11),		/* sleep out */
+	CMD1(0xba, 0x01),	/* Display mode (1) */
+	CMD1(0xbb, 0x00),	/* Display mode (2) */
+	CMD1(0x3a, 0x60),	/* Display mode 18-bit RGB */
+	CMD1(0xbf, 0x10),	/* Drive system change control */
+	CMD1(0xb1, 0x56),	/* Booster operation setup */
+	CMD1(0xb2, 0x33),	/* Booster mode setup */
+	CMD1(0xb3, 0x11),	/* Booster frequency setup */
+	CMD1(0xb4, 0x02),	/* Op amp/system clock */
+	CMD1(0xb5, 0x35),	/* VCS voltage */
+	CMD1(0xb6, 0x40),	/* VCOM voltage */
+	CMD1(0xb7, 0x03),	/* External display signal */
+	CMD1(0xbd, 0x00),	/* ASW slew rate */
+	CMD1(0xbe, 0x00),	/* Dummy data for QuadData operation */
+	CMD1(0xc0, 0x11),	/* Sleep out FR count (A) */
+	CMD1(0xc1, 0x11),	/* Sleep out FR count (B) */
+	CMD1(0xc2, 0x11),	/* Sleep out FR count (C) */
+	CMD2(0xc3, 0x20, 0x40),	/* Sleep out FR count (D) */
+	CMD2(0xc4, 0x60, 0xc0),	/* Sleep out FR count (E) */
+	CMD2(0xc5, 0x10, 0x20),	/* Sleep out FR count (F) */
+	CMD1(0xc6, 0xc0),	/* Sleep out FR count (G) */
+	CMD2(0xc7, 0x33, 0x43),	/* Gamma 1 fine tuning (1) */
+	CMD1(0xc8, 0x44),	/* Gamma 1 fine tuning (2) */
+	CMD1(0xc9, 0x33),	/* Gamma 1 inclination adjustment */
+	CMD1(0xca, 0x00),	/* Gamma 1 blue offset adjustment */
+	CMD2(0xec, 0x01, 0xf0),	/* Horizontal clock cycles */
+};
+
+static void ssp_reconfig(struct ssp_dev *dev, int nparam)
+{
+	static int last_nparam = -1;
+
+	/* check if it is necessary to re-config SSP */
+	if (nparam == last_nparam)
+		return;
+
+	ssp_disable(dev);
+	ssp_config(dev, (nparam == 2) ? 0x0010058a : 0x00100581, 0x18, 0, 0);
+
+	last_nparam = nparam;
+}
+
+static void ssp_send_cmd(uint32_t *cmd, int num)
+{
+	static int ssp_initialized;
+	static struct ssp_dev ssp2;
+
+	int i;
+
+	if (!ssp_initialized) {
+		ssp_init(&ssp2, 2, SSP_NO_IRQ);
+		ssp_initialized = 1;
+	}
+
+	clk_enable(ssp2.ssp->clk);
+	for (i = 0; i < num; i++, cmd++) {
+		ssp_reconfig(&ssp2, (*cmd >> 30) & 0x3);
+		ssp_write_word(&ssp2, *cmd & 0x3fffffff);
+
+		/* FIXME: ssp_flush() is mandatory here to work */
+		ssp_flush(&ssp2);
+	}
+	clk_disable(ssp2.ssp->clk);
+}
+
+static void littleton_lcd_power(int on, struct fb_var_screeninfo *var)
+{
+	if (on) {
+		ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_on));
+		ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_reset));
+		if (var->xres > 240) {
+			/* VGA */
+			ssp_send_cmd(ARRAY_AND_SIZE(lcd_vga_pass_through));
+			ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_config));
+			ssp_send_cmd(ARRAY_AND_SIZE(lcd_vga_transfer));
+		} else {
+			/* QVGA */
+			ssp_send_cmd(ARRAY_AND_SIZE(lcd_qvga_pass_through));
+			ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_config));
+			ssp_send_cmd(ARRAY_AND_SIZE(lcd_qvga_transfer));
+		}
+	} else
+		ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_off));
+}
+
+static struct pxafb_mode_info tpo_tdo24mtea1_modes[] = {
+	[0] = {
+		/* VGA */
+		.pixclock	= 38250,
+		.xres		= 480,
+		.yres		= 640,
+		.bpp		= 16,
+		.hsync_len	= 8,
+		.left_margin	= 8,
+		.right_margin	= 24,
+		.vsync_len	= 2,
+		.upper_margin	= 2,
+		.lower_margin	= 4,
+		.sync		= 0,
+	},
+	[1] = {
+		/* QVGA */
+		.pixclock	= 153000,
+		.xres		= 240,
+		.yres		= 320,
+		.bpp		= 16,
+		.hsync_len	= 8,
+		.left_margin	= 8,
+		.right_margin	= 88,
+		.vsync_len	= 2,
+		.upper_margin	= 2,
+		.lower_margin	= 2,
+		.sync		= 0,
+	},
+};
+
+static struct pxafb_mach_info littleton_lcd_info = {
+	.modes			= tpo_tdo24mtea1_modes,
+	.num_modes		= 2,
+	.lccr0			= LCCR0_Act,
+	.lccr3			= LCCR3_HSP | LCCR3_VSP,
+	.pxafb_lcd_power	= littleton_lcd_power,
+};
+
+static void littleton_init_lcd(void)
+{
+	set_pxa_fb_info(&littleton_lcd_info);
+}
+#else
+static inline void littleton_init_lcd(void) {};
+#endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULES */
+
+static void __init littleton_init(void)
+{
+	/* initialize MFP configurations */
+	pxa3xx_mfp_config(ARRAY_AND_SIZE(littleton_mfp_cfg));
+
+	/*
+	 * Note: we depend bootloader set the correct
+	 * value to MSC register for SMC91x.
+	 */
+	platform_device_register(&smc91x_device);
+
+	littleton_init_lcd();
+}
+
+MACHINE_START(LITTLETON, "Marvell Form Factor Development Platform (aka Littleton)")
+	.phys_io	= 0x40000000,
+	.boot_params	= 0xa0000100,
+	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
+	.map_io		= pxa_map_io,
+	.init_irq	= pxa3xx_init_irq,
+	.timer		= &pxa_timer,
+	.init_machine	= littleton_init,
+MACHINE_END
diff --git a/include/asm-arm/arch-pxa/littleton.h b/include/asm-arm/arch-pxa/littleton.h
new file mode 100644
index 000000000000..79d209b826f4
--- /dev/null
+++ b/include/asm-arm/arch-pxa/littleton.h
@@ -0,0 +1,6 @@
+#ifndef __ASM_ARCH_ZYLONITE_H
+#define __ASM_ARCH_ZYLONITE_H
+
+#define LITTLETON_ETH_PHYS	0x30000000
+
+#endif /* __ASM_ARCH_ZYLONITE_H */
-- 
cgit v1.2.3-59-g8ed1b


From 1709e2af784ea658cec4e91fc884508d1214d6f5 Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Fri, 21 Dec 2007 11:18:48 +0800
Subject: [ARM] pxa: add default config for littleton

default to

- PXA300/PXA310 support only (there isn't any littleton board with PXA320
  processor for now)

- smc91x ethernet support with NFS rootfs

- LCD framebuffer support with graphics console

Signed-off-by: eric miao <eric.miao>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/configs/littleton_defconfig | 783 +++++++++++++++++++++++++++++++++++
 1 file changed, 783 insertions(+)
 create mode 100644 arch/arm/configs/littleton_defconfig

(limited to 'arch')

diff --git a/arch/arm/configs/littleton_defconfig b/arch/arm/configs/littleton_defconfig
new file mode 100644
index 000000000000..1db496908052
--- /dev/null
+++ b/arch/arm/configs/littleton_defconfig
@@ -0,0 +1,783 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.24-rc5
+# Fri Dec 21 11:06:19 2007
+#
+CONFIG_ARM=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_MMU=y
+# CONFIG_NO_IOPORT is not set
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_ZONE_DMA=y
+CONFIG_ARCH_MTD_XIP=y
+CONFIG_VECTORS_BASE=0xffff0000
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOCK_KERNEL=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SWAP=y
+CONFIG_SYSVIPC=y
+CONFIG_SYSVIPC_SYSCTL=y
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL=y
+# CONFIG_EMBEDDED is not set
+CONFIG_UID16=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_ALL is not set
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+# CONFIG_KMOD is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
+
+#
+# System Type
+#
+# CONFIG_ARCH_AAEC2000 is not set
+# CONFIG_ARCH_INTEGRATOR is not set
+# CONFIG_ARCH_REALVIEW is not set
+# CONFIG_ARCH_VERSATILE is not set
+# CONFIG_ARCH_AT91 is not set
+# CONFIG_ARCH_CLPS7500 is not set
+# CONFIG_ARCH_CLPS711X is not set
+# CONFIG_ARCH_CO285 is not set
+# CONFIG_ARCH_EBSA110 is not set
+# CONFIG_ARCH_EP93XX is not set
+# CONFIG_ARCH_FOOTBRIDGE is not set
+# CONFIG_ARCH_NETX is not set
+# CONFIG_ARCH_H720X is not set
+# CONFIG_ARCH_IMX is not set
+# CONFIG_ARCH_IOP13XX is not set
+# CONFIG_ARCH_IOP32X is not set
+# CONFIG_ARCH_IOP33X is not set
+# CONFIG_ARCH_IXP23XX is not set
+# CONFIG_ARCH_IXP2000 is not set
+# CONFIG_ARCH_IXP4XX is not set
+# CONFIG_ARCH_L7200 is not set
+# CONFIG_ARCH_KS8695 is not set
+# CONFIG_ARCH_NS9XXX is not set
+# CONFIG_ARCH_MXC is not set
+# CONFIG_ARCH_PNX4008 is not set
+CONFIG_ARCH_PXA=y
+# CONFIG_ARCH_RPC is not set
+# CONFIG_ARCH_SA1100 is not set
+# CONFIG_ARCH_S3C2410 is not set
+# CONFIG_ARCH_SHARK is not set
+# CONFIG_ARCH_LH7A40X is not set
+# CONFIG_ARCH_DAVINCI is not set
+# CONFIG_ARCH_OMAP is not set
+
+#
+# Intel PXA2xx/PXA3xx Implementations
+#
+
+#
+# Supported PXA3xx Processor Variants
+#
+CONFIG_CPU_PXA300=y
+CONFIG_CPU_PXA310=y
+# CONFIG_CPU_PXA320 is not set
+# CONFIG_ARCH_LUBBOCK is not set
+# CONFIG_MACH_LOGICPD_PXA270 is not set
+# CONFIG_MACH_MAINSTONE is not set
+# CONFIG_ARCH_PXA_IDP is not set
+# CONFIG_PXA_SHARPSL is not set
+# CONFIG_MACH_TRIZEPS4 is not set
+# CONFIG_MACH_EM_X270 is not set
+# CONFIG_MACH_ZYLONITE is not set
+CONFIG_MACH_LITTLETON=y
+# CONFIG_MACH_ARMCORE is not set
+CONFIG_PXA3xx=y
+CONFIG_PXA_SSP=y
+
+#
+# Boot options
+#
+
+#
+# Power management
+#
+
+#
+# Processor Type
+#
+CONFIG_CPU_32=y
+CONFIG_CPU_XSC3=y
+CONFIG_CPU_32v5=y
+CONFIG_CPU_ABRT_EV5T=y
+CONFIG_CPU_CACHE_VIVT=y
+CONFIG_CPU_TLB_V4WBI=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+CONFIG_IO_36=y
+
+#
+# Processor Features
+#
+# CONFIG_ARM_THUMB is not set
+# CONFIG_CPU_DCACHE_DISABLE is not set
+# CONFIG_CPU_BPREDICT_DISABLE is not set
+# CONFIG_OUTER_CACHE is not set
+CONFIG_IWMMXT=y
+
+#
+# Bus support
+#
+# CONFIG_PCI_SYSCALL is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+# CONFIG_PCCARD is not set
+
+#
+# Kernel Features
+#
+CONFIG_TICK_ONESHOT=y
+# CONFIG_NO_HZ is not set
+# CONFIG_HIGH_RES_TIMERS is not set
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+CONFIG_PREEMPT=y
+CONFIG_HZ=100
+CONFIG_AEABI=y
+CONFIG_OABI_COMPAT=y
+# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4096
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_BOUNCE=y
+CONFIG_VIRT_TO_BUS=y
+CONFIG_ALIGNMENT_TRAP=y
+
+#
+# Boot options
+#
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_CMDLINE="root=/dev/nfs rootfstype=nfs nfsroot=192.168.1.100:/nfsroot/ ip=192.168.1.101:192.168.1.100::255.255.255.0::eth0:on console=ttyS2,38400 mem=64M"
+# CONFIG_XIP_KERNEL is not set
+# CONFIG_KEXEC is not set
+
+#
+# CPU Frequency scaling
+#
+# CONFIG_CPU_FREQ is not set
+
+#
+# Floating point emulation
+#
+
+#
+# At least one emulation must be selected
+#
+CONFIG_FPE_NWFPE=y
+# CONFIG_FPE_NWFPE_XP is not set
+# CONFIG_FPE_FASTFPE is not set
+
+#
+# Userspace binary formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Power management options
+#
+# CONFIG_PM is not set
+CONFIG_SUSPEND_UP_POSSIBLE=y
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+CONFIG_XFRM=y
+# CONFIG_XFRM_USER is not set
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+CONFIG_IP_PNP=y
+# CONFIG_IP_PNP_DHCP is not set
+# CONFIG_IP_PNP_BOOTP is not set
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
+CONFIG_INET_XFRM_MODE_BEET=y
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+CONFIG_FW_LOADER=y
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+# CONFIG_MTD is not set
+# CONFIG_PARPORT is not set
+# CONFIG_BLK_DEV is not set
+# CONFIG_MISC_DEVICES is not set
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+# CONFIG_AX88796 is not set
+CONFIG_SMC91X=y
+# CONFIG_DM9000 is not set
+# CONFIG_SMC911X is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_WAN is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_PXA=y
+CONFIG_SERIAL_PXA_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_NVRAM is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_I2C is not set
+
+#
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_DAB is not set
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+CONFIG_FB=y
+# CONFIG_FIRMWARE_EDID is not set
+# CONFIG_FB_DDC is not set
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_SYS_FOPS is not set
+CONFIG_FB_DEFERRED_IO=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+# CONFIG_FB_MODE_HELPERS is not set
+# CONFIG_FB_TILEBLITTING is not set
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_S1D13XXX is not set
+CONFIG_FB_PXA=y
+# CONFIG_FB_PXA_PARAMETERS is not set
+# CONFIG_FB_MBX is not set
+# CONFIG_FB_VIRTUAL is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Console display driver support
+#
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+CONFIG_FONTS=y
+# CONFIG_FONT_8x8 is not set
+CONFIG_FONT_8x16=y
+# CONFIG_FONT_6x11 is not set
+# CONFIG_FONT_7x14 is not set
+# CONFIG_FONT_PEARL_8x8 is not set
+# CONFIG_FONT_ACORN_8x8 is not set
+# CONFIG_FONT_MINI_4x6 is not set
+# CONFIG_FONT_SUN8x16 is not set
+# CONFIG_FONT_SUN12x22 is not set
+# CONFIG_FONT_10x18 is not set
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_MONO=y
+CONFIG_LOGO_LINUX_VGA16=y
+CONFIG_LOGO_LINUX_CLUT224=y
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+# CONFIG_HID_SUPPORT is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_MMC is not set
+# CONFIG_NEW_LEDS is not set
+CONFIG_RTC_LIB=y
+# CONFIG_RTC_CLASS is not set
+
+#
+# File systems
+#
+# CONFIG_EXT2_FS is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4DEV_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+CONFIG_FS_POSIX_ACL=y
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+# CONFIG_INOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+# CONFIG_TMPFS is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=y
+CONFIG_NFS_DIRECTIO=y
+# CONFIG_NFSD is not set
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_NFS_ACL_SUPPORT=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+CONFIG_SUNRPC_GSS=y
+# CONFIG_SUNRPC_BIND34 is not set
+CONFIG_RPCSEC_GSS_KRB5=y
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_NLS is not set
+# CONFIG_DLM is not set
+# CONFIG_INSTRUMENTATION is not set
+
+#
+# Kernel hacking
+#
+CONFIG_PRINTK_TIME=y
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
+# CONFIG_SCHEDSTATS is not set
+# CONFIG_TIMER_STATS is not set
+# CONFIG_DEBUG_SLAB is not set
+# CONFIG_DEBUG_PREEMPT is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_LOCK_ALLOC is not set
+# CONFIG_PROVE_LOCKING is not set
+# CONFIG_LOCK_STAT is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_INFO=y
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
+CONFIG_FRAME_POINTER=y
+CONFIG_FORCED_INLINING=y
+# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_SAMPLES is not set
+CONFIG_DEBUG_USER=y
+CONFIG_DEBUG_ERRORS=y
+CONFIG_DEBUG_LL=y
+# CONFIG_DEBUG_ICEDCC is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_ALGAPI=y
+CONFIG_CRYPTO_BLKCIPHER=y
+CONFIG_CRYPTO_MANAGER=y
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_MD4 is not set
+CONFIG_CRYPTO_MD5=y
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_GF128MUL is not set
+# CONFIG_CRYPTO_ECB is not set
+CONFIG_CRYPTO_CBC=y
+# CONFIG_CRYPTO_PCBC is not set
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_XTS is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+CONFIG_CRYPTO_DES=y
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_AES is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_SEED is not set
+# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_TEST is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+CONFIG_CRYPTO_HW=y
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+CONFIG_CRC_CCITT=y
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
-- 
cgit v1.2.3-59-g8ed1b


From e7b3dc7ef1e27fd5713a0df71f82c0a27de1c2eb Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Mon, 14 Jan 2008 22:30:10 +0000
Subject: [NET] smc91x: Make smc91x use IRQ resource trigger flags

smc91x is shared between many different platforms.  Each platform needs
to specify the interrupt type, and in some cases the irq type depends
on more than just the build configuration - it depends on runtime
checks.

Rather than throwing this code into the SMC_IRQ_FLAGS definition, provide
a way for these flags to be passed via the IRQ resource itself.

Note that IRQF_TRIGGER_* constants are intentionally defined to correspond
with the IORESOURCE_IRQ_* interrupt type flags, in much the same way that
the low bits of PCI iomem resources correspond with the BAR flag bits.

Also provide a way to configure smc91x to read the IRQ flags from the
resource.  Once all platforms have been converted over (signified
by all definitions of SMC_IRQ_FLAGS being -1) SMC_IRQ_FLAGS should
be removed.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Nicolas Pitre <nico@cam.org>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
---
 arch/arm/mach-omap1/board-fsample.c   |  2 +-
 arch/arm/mach-omap1/board-h2.c        |  2 +-
 arch/arm/mach-omap1/board-h3.c        |  2 +-
 arch/arm/mach-omap1/board-innovator.c |  4 ++--
 arch/arm/mach-omap1/board-osk.c       |  2 +-
 arch/arm/mach-omap1/board-perseus2.c  |  2 +-
 arch/arm/mach-omap1/board-voiceblue.c |  2 +-
 arch/arm/mach-omap2/board-2430sdp.c   |  2 +-
 arch/arm/mach-omap2/board-apollon.c   |  2 +-
 arch/arm/mach-pxa/idp.c               |  2 +-
 arch/arm/mach-pxa/littleton.c         |  2 +-
 arch/arm/mach-pxa/lubbock.c           |  2 +-
 arch/arm/mach-pxa/mainstone.c         |  2 +-
 arch/arm/mach-pxa/zylonite.c          |  2 +-
 arch/arm/plat-omap/debug-devices.c    |  2 +-
 drivers/net/smc91x.c                  | 19 +++++++++++++------
 drivers/net/smc91x.h                  | 21 +++++++--------------
 17 files changed, 36 insertions(+), 36 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-omap1/board-fsample.c b/arch/arm/mach-omap1/board-fsample.c
index d5f6ea14fc7b..f550b19e1ecd 100644
--- a/arch/arm/mach-omap1/board-fsample.c
+++ b/arch/arm/mach-omap1/board-fsample.c
@@ -76,7 +76,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= INT_730_MPU_EXT_NIRQ,
 		.end	= 0,
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 
diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
index 130681201c19..60c4057e19ed 100644
--- a/arch/arm/mach-omap1/board-h2.c
+++ b/arch/arm/mach-omap1/board-h2.c
@@ -209,7 +209,7 @@ static struct resource h2_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(0),
 		.end	= OMAP_GPIO_IRQ(0),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 	},
 };
 
diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c
index 4f84ae273a1f..15b502e6ecfe 100644
--- a/arch/arm/mach-omap1/board-h3.c
+++ b/arch/arm/mach-omap1/board-h3.c
@@ -208,7 +208,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(40),
 		.end	= OMAP_GPIO_IRQ(40),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 	},
 };
 
diff --git a/arch/arm/mach-omap1/board-innovator.c b/arch/arm/mach-omap1/board-innovator.c
index 7e63a41e37c6..7d2d8af155a3 100644
--- a/arch/arm/mach-omap1/board-innovator.c
+++ b/arch/arm/mach-omap1/board-innovator.c
@@ -202,7 +202,7 @@ static struct resource innovator1510_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP1510_INT_ETHER,
 		.end	= OMAP1510_INT_ETHER,
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 
@@ -269,7 +269,7 @@ static struct resource innovator1610_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(0),
 		.end	= OMAP_GPIO_IRQ(0),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 	},
 };
 
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index 5db182da322b..1fe9ba3b8c28 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -111,7 +111,7 @@ static struct resource osk5912_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(0),
 		.end	= OMAP_GPIO_IRQ(0),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 
diff --git a/arch/arm/mach-omap1/board-perseus2.c b/arch/arm/mach-omap1/board-perseus2.c
index e44437e10eef..534dcfb9d263 100644
--- a/arch/arm/mach-omap1/board-perseus2.c
+++ b/arch/arm/mach-omap1/board-perseus2.c
@@ -75,7 +75,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= INT_730_MPU_EXT_NIRQ,
 		.end	= 0,
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 
diff --git a/arch/arm/mach-omap1/board-voiceblue.c b/arch/arm/mach-omap1/board-voiceblue.c
index 214dd19889ac..c82a1cd20ad4 100644
--- a/arch/arm/mach-omap1/board-voiceblue.c
+++ b/arch/arm/mach-omap1/board-voiceblue.c
@@ -117,7 +117,7 @@ static struct resource voiceblue_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(8),
 		.end	= OMAP_GPIO_IRQ(8),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 
diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
index 7e76fbf19b5d..64235dee5614 100644
--- a/arch/arm/mach-omap2/board-2430sdp.c
+++ b/arch/arm/mach-omap2/board-2430sdp.c
@@ -104,7 +104,7 @@ static struct resource sdp2430_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 		.end	= OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 
diff --git a/arch/arm/mach-omap2/board-apollon.c b/arch/arm/mach-omap2/board-apollon.c
index 3bb49c17c858..401a53c1ca6e 100644
--- a/arch/arm/mach-omap2/board-apollon.c
+++ b/arch/arm/mach-omap2/board-apollon.c
@@ -127,7 +127,7 @@ static struct resource apollon_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
 		.end	= OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 
diff --git a/arch/arm/mach-pxa/idp.c b/arch/arm/mach-pxa/idp.c
index 465108da2851..0a9434432c55 100644
--- a/arch/arm/mach-pxa/idp.c
+++ b/arch/arm/mach-pxa/idp.c
@@ -54,7 +54,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= IRQ_GPIO(4),
 		.end	= IRQ_GPIO(4),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
 
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c
index e408a3a89bba..0a4b54c21314 100644
--- a/arch/arm/mach-pxa/littleton.c
+++ b/arch/arm/mach-pxa/littleton.c
@@ -87,7 +87,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
 		.end	= IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
 	}
 };
 
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index a75594bf68b5..e7ae4bb3e361 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -196,7 +196,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= LUBBOCK_ETH_IRQ,
 		.end	= LUBBOCK_ETH_IRQ,
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 	[2] = {
 		.name	= "smc91x-attrib",
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 06e13608a2c9..ac78dbd6a634 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -156,7 +156,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= MAINSTONE_IRQ(3),
 		.end	= MAINSTONE_IRQ(3),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
 
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index b49c69d024c7..7731d50dd86c 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -47,7 +47,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= -1,	/* for run-time assignment */
 		.end	= -1,
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
 
diff --git a/arch/arm/plat-omap/debug-devices.c b/arch/arm/plat-omap/debug-devices.c
index 83a5f8b91857..f455233af082 100644
--- a/arch/arm/plat-omap/debug-devices.c
+++ b/arch/arm/plat-omap/debug-devices.c
@@ -29,7 +29,7 @@ static struct resource smc91x_resources[] = {
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
-		.flags  = IORESOURCE_IRQ,
+		.flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 	},
 };
 
diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c
index 7da7589d45dd..4020e9e955b3 100644
--- a/drivers/net/smc91x.c
+++ b/drivers/net/smc91x.c
@@ -1775,7 +1775,8 @@ static int __init smc_findirq(void __iomem *ioaddr)
  * o  actually GRAB the irq.
  * o  GRAB the region
  */
-static int __init smc_probe(struct net_device *dev, void __iomem *ioaddr)
+static int __init smc_probe(struct net_device *dev, void __iomem *ioaddr,
+			    unsigned long irq_flags)
 {
 	struct smc_local *lp = netdev_priv(dev);
 	static int version_printed = 0;
@@ -1941,7 +1942,7 @@ static int __init smc_probe(struct net_device *dev, void __iomem *ioaddr)
 	}
 
 	/* Grab the IRQ */
-      	retval = request_irq(dev->irq, &smc_interrupt, SMC_IRQ_FLAGS, dev->name, dev);
+	retval = request_irq(dev->irq, &smc_interrupt, irq_flags, dev->name, dev);
       	if (retval)
       		goto err_out;
 
@@ -2123,8 +2124,9 @@ static void smc_release_datacs(struct platform_device *pdev, struct net_device *
 static int smc_drv_probe(struct platform_device *pdev)
 {
 	struct net_device *ndev;
-	struct resource *res;
+	struct resource *res, *ires;
 	unsigned int __iomem *addr;
+	unsigned long irq_flags = SMC_IRQ_FLAGS;
 	int ret;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-regs");
@@ -2150,12 +2152,17 @@ static int smc_drv_probe(struct platform_device *pdev)
 	SET_NETDEV_DEV(ndev, &pdev->dev);
 
 	ndev->dma = (unsigned char)-1;
-	ndev->irq = platform_get_irq(pdev, 0);
-	if (ndev->irq < 0) {
+
+	ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!ires) {
 		ret = -ENODEV;
 		goto out_free_netdev;
 	}
 
+	ndev->irq = ires->start;
+	if (SMC_IRQ_FLAGS == -1)
+		irq_flags = ires->flags & IRQF_TRIGGER_MASK;
+
 	ret = smc_request_attrib(pdev);
 	if (ret)
 		goto out_free_netdev;
@@ -2181,7 +2188,7 @@ static int smc_drv_probe(struct platform_device *pdev)
 #endif
 
 	platform_set_drvdata(pdev, ndev);
-	ret = smc_probe(ndev, addr);
+	ret = smc_probe(ndev, addr, irq_flags);
 	if (ret != 0)
 		goto out_iounmap;
 
diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h
index 07b7f7120e37..1d97eaeb02bd 100644
--- a/drivers/net/smc91x.h
+++ b/drivers/net/smc91x.h
@@ -54,6 +54,7 @@
 #define SMC_outw(v, a, r)	writew(v, (a) + (r))
 #define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
 #define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
+#define SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 #elif defined(CONFIG_BLACKFIN)
 
@@ -158,7 +159,7 @@
 #define SMC_outw(v, a, r)	writew(v, (a) + (r))
 #define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
 
-#define SMC_IRQ_FLAGS		(0)
+#define SMC_IRQ_FLAGS		(-1)
 
 #elif defined(CONFIG_SA1100_ASSABET)
 
@@ -177,6 +178,7 @@
 #define SMC_outb(v, a, r)	writeb(v, (a) + (r))
 #define SMC_insb(a, r, p, l)	readsb((a) + (r), p, (l))
 #define SMC_outsb(a, r, p, l)	writesb((a) + (r), p, (l))
+#define SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 #elif	defined(CONFIG_MACH_LOGICPD_PXA270)
 
@@ -210,6 +212,7 @@
 #define SMC_outl(v, a, r)	writel(v, (a) + (r))
 #define SMC_insl(a, r, p, l)	readsl((a) + (r), p, l)
 #define SMC_outsl(a, r, p, l)	writesl((a) + (r), p, l)
+#define SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 /* We actually can't write halfwords properly if not word aligned */
 static inline void
@@ -238,6 +241,7 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define SMC_outsw(a, r, p, l)   outsw((a) + (r), p, l)
 #define SMC_outb(v, a, r)       writeb(v, (a) + (r))
 #define SMC_outw(v, a, r)       writew(v, (a) + (r))
+#define SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 #elif	defined(CONFIG_ARCH_OMAP)
 
@@ -252,17 +256,7 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define SMC_outw(v, a, r)	writew(v, (a) + (r))
 #define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
 #define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
-
-#include <asm/mach-types.h>
-#include <asm/arch/cpu.h>
-
-#define	SMC_IRQ_FLAGS (( \
-		   machine_is_omap_h2() \
-		|| machine_is_omap_h3() \
-		|| machine_is_omap_h4() \
-		|| (machine_is_omap_innovator() && !cpu_is_omap1510()) \
-	) ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING)
-
+#define	SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 #elif	defined(CONFIG_SH_SH4202_MICRODEV)
 
@@ -453,8 +447,7 @@ static inline void LPD7_SMC_outsw (unsigned char* a, int r,
 #define SMC_outl(v, a, r)	writel(v, (a) + (r))
 #define SMC_insl(a, r, p, l)	readsl((a) + (r), p, l)
 #define SMC_outsl(a, r, p, l)	writesl((a) + (r), p, l)
-
-#define SMC_IRQ_FLAGS		(0)
+#define SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 #else
 
-- 
cgit v1.2.3-59-g8ed1b


From 34e31d871ee4b6a9f6c5504da7d6dcc24967844c Mon Sep 17 00:00:00 2001
From: Robert Schwebel <robert@schwebel.de>
Date: Tue, 8 Jan 2008 08:44:23 +0100
Subject: [ARM] 4744/1: pcm027: add support for phyCORE-PXA270 CPU module

This patch adds main support for the generic phyCORE-PXA270 CPU module
(aka PCM-027). Its as generic as possible to support any kind of baseboard.

Note: Neither the CPU module nor the pcm027.c implementation can work without
a baseboard support. Baseboard support can be added by the PCM-990 or any
custom variant.

V2:
 After comments by Eric Miao:
  - Currently unsupported devices moved into separate patch
  - direct call of baseboard initialisation

V3:
 After comments by Russell King
  - sort include files
  - setting RTC bit for power control removed
 - style problems fixed (discovered by checkpatch.pl)

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/Kconfig         |   5 +
 arch/arm/mach-pxa/Makefile        |   1 +
 arch/arm/mach-pxa/pcm027.c        | 216 ++++++++++++++++++++++++++++++++++++++
 include/asm-arm/arch-pxa/irqs.h   |  10 +-
 include/asm-arm/arch-pxa/pcm027.h |  75 +++++++++++++
 5 files changed, 306 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-pxa/pcm027.c
 create mode 100644 include/asm-arm/arch-pxa/pcm027.h

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index c73da5e33067..958303c100b0 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -123,6 +123,11 @@ config MACH_MAGICIAN
 	select PXA27x
 	select IWMMXT
 
+config MACH_PCM027
+	bool "Phytec phyCORE-PXA270 CPU module (PCM-027)"
+	select PXA27x
+	select IWMMXT
+
 endchoice
 
 if PXA_SHARPSL
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 5e9aec57642d..61d301805c80 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_PXA_SHARP_C7xx)	+= corgi.o corgi_ssp.o corgi_lcd.o sharpsl_pm.o cor
 obj-$(CONFIG_PXA_SHARP_Cxx00)	+= spitz.o corgi_ssp.o corgi_lcd.o sharpsl_pm.o spitz_pm.o
 obj-$(CONFIG_MACH_AKITA)	+= akita-ioexp.o
 obj-$(CONFIG_MACH_POODLE)	+= poodle.o corgi_ssp.o
+obj-$(CONFIG_MACH_PCM027)	+= pcm027.o
 obj-$(CONFIG_MACH_TOSA)		+= tosa.o
 obj-$(CONFIG_MACH_EM_X270)	+= em-x270.o
 obj-$(CONFIG_MACH_MAGICIAN)	+= magician.o
diff --git a/arch/arm/mach-pxa/pcm027.c b/arch/arm/mach-pxa/pcm027.c
new file mode 100644
index 000000000000..540c3bba5f9a
--- /dev/null
+++ b/arch/arm/mach-pxa/pcm027.c
@@ -0,0 +1,216 @@
+/*
+ *  linux/arch/arm/mach-pxa/pcm027.c
+ *  Support for the Phytec phyCORE-PXA270 CPU card (aka PCM-027).
+ *
+ *  Refer
+ *   http://www.phytec.com/products/sbc/ARM-XScale/phyCORE-XScale-PXA270.html
+ *  for additional hardware info
+ *
+ *  Author:	Juergen Kilb
+ *  Created:	April 05, 2005
+ *  Copyright:	Phytec Messtechnik GmbH
+ *  e-Mail:	armlinux@phytec.de
+ *
+ *  based on Intel Mainstone Board
+ *
+ *  Copyright 2007 Juergen Beisert @ Pengutronix (j.beisert@pengutronix.de)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/spi/spi.h>
+#include <linux/leds.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/pxa2xx_spi.h>
+#include <asm/arch/pcm027.h>
+#include "generic.h"
+
+/*
+ * ABSTRACT:
+ *
+ * The PXA270 processor comes with a bunch of hardware on its silicon.
+ * Not all of this hardware can be used at the same time and not all
+ * is routed to module's connectors. Also it depends on the baseboard, what
+ * kind of hardware can be used in which way.
+ * -> So this file supports the main devices on the CPU card only!
+ * Refer pcm990-baseboard.c how to extend this features to get a full
+ * blown system with many common interfaces.
+ *
+ * The PCM-027 supports the following interfaces through its connectors and
+ * will be used in pcm990-baseboard.c:
+ *
+ * - LCD support
+ * - MMC support
+ * - IDE/CF card
+ * - FFUART
+ * - BTUART
+ * - IRUART
+ * - AC97
+ * - SSP
+ * - SSP3
+ *
+ * Claimed GPIOs:
+ * GPIO0 -> IRQ input from RTC
+ * GPIO2 -> SYS_ENA*)
+ * GPIO3 -> PWR_SCL
+ * GPIO4 -> PWR_SDA
+ * GPIO5 -> PowerCap0*)
+ * GPIO6 -> PowerCap1*)
+ * GPIO7 -> PowerCap2*)
+ * GPIO8 -> PowerCap3*)
+ * GPIO15 -> /CS1
+ * GPIO20 -> /CS2
+ * GPIO21 -> /CS3
+ * GPIO33 -> /CS5 network controller select
+ * GPIO52 -> IRQ from network controller
+ * GPIO78 -> /CS2
+ * GPIO80 -> /CS4
+ * GPIO90 -> LED0
+ * GPIO91 -> LED1
+ * GPIO114 -> IRQ from CAN controller
+ * GPIO117 -> SCL
+ * GPIO118 -> SDA
+ *
+ * *) CPU internal use only
+ */
+
+/*
+ * SMC91x network controller specific stuff
+ */
+static struct resource smc91x_resources[] = {
+	[0] = {
+		.start	= PCM027_ETH_PHYS + 0x300,
+		.end	= PCM027_ETH_PHYS + PCM027_ETH_SIZE,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= PCM027_ETH_IRQ,
+		.end	= PCM027_ETH_IRQ,
+		/* note: smc91x's driver doesn't use the trigger bits yet */
+		.flags	= IORESOURCE_IRQ | PCM027_ETH_IRQ_EDGE,
+	}
+};
+
+static struct platform_device smc91x_device = {
+	.name		= "smc91x",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(smc91x_resources),
+	.resource	= smc91x_resources,
+};
+
+static struct physmap_flash_data pcm027_flash_data = {
+	.width  = 4,
+};
+
+static struct resource pcm027_flash_resource = {
+	.start          = PCM027_FLASH_PHYS,
+	.end            = PCM027_FLASH_PHYS + PCM027_FLASH_SIZE - 1 ,
+	.flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device pcm027_flash = {
+	.name           = "physmap-flash",
+	.id             = 0,
+	.dev            = {
+		.platform_data  = &pcm027_flash_data,
+	},
+	.resource       = &pcm027_flash_resource,
+	.num_resources  = 1,
+};
+
+#ifdef CONFIG_LEDS_GPIO
+
+static struct gpio_led pcm027_led[] = {
+	{
+		.name = "led0:red",	/* FIXME */
+		.gpio = PCM027_LED_CPU
+	},
+	{
+		.name = "led1:green",	/* FIXME */
+		.gpio = PCM027_LED_HEARD_BEAT
+	},
+};
+
+static struct gpio_led_platform_data pcm027_led_data = {
+	.num_leds	= ARRAY_SIZE(pcm027_led),
+	.leds		= pcm027_led
+};
+
+static struct platform_device pcm027_led_dev = {
+	.name		= "leds-gpio",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &pcm027_led_data,
+	},
+};
+
+#endif /* CONFIG_LEDS_GPIO */
+
+/*
+ * declare the available device resources on this board
+ */
+static struct platform_device *devices[] __initdata = {
+	&smc91x_device,
+	&pcm027_flash,
+#ifdef CONFIG_LEDS_GPIO
+	&pcm027_led_dev
+#endif
+};
+
+/*
+ * pcm027_init - breath some life into the board
+ */
+static void __init pcm027_init(void)
+{
+	/* system bus arbiter setting
+	 * - Core_Park
+	 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
+	 */
+	ARB_CNTRL = ARB_CORE_PARK | 0x234;
+
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+
+	/* LEDs (on demand only) */
+#ifdef CONFIG_LEDS_GPIO
+	pxa_gpio_mode(PCM027_LED_CPU | GPIO_OUT);
+	pxa_gpio_mode(PCM027_LED_HEARD_BEAT | GPIO_OUT);
+#endif /* CONFIG_LEDS_GPIO */
+
+	/* at last call the baseboard to initialize itself */
+#ifdef CONFIG_MACH_PCM990_BASEBOARD
+	pcm990_baseboard_init();
+#endif
+}
+
+static void __init pcm027_map_io(void)
+{
+	pxa_map_io();
+
+	/* initialize sleep mode regs (wake-up sources, etc) */
+	PGSR0 = 0x01308000;
+	PGSR1 = 0x00CF0002;
+	PGSR2 = 0x0E294000;
+	PGSR3 = 0x0000C000;
+	PWER  = 0x40000000 | PWER_GPIO0 | PWER_GPIO1;
+	PRER  = 0x00000000;
+	PFER  = 0x00000003;
+}
+
+MACHINE_START(PCM027, "Phytec Messtechnik GmbH phyCORE-PXA270")
+	/* Maintainer: Pengutronix */
+	.boot_params	= 0xa0000100,
+	.phys_io	= 0x40000000,
+	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
+	.map_io		= pcm027_map_io,
+	.init_irq	= pxa27x_init_irq,
+	.timer		= &pxa_timer,
+	.init_machine	= pcm027_init,
+MACHINE_END
diff --git a/include/asm-arm/arch-pxa/irqs.h b/include/asm-arm/arch-pxa/irqs.h
index b76ee6d1f5b4..c562b972a4a6 100644
--- a/include/asm-arm/arch-pxa/irqs.h
+++ b/include/asm-arm/arch-pxa/irqs.h
@@ -180,7 +180,8 @@
 #define NR_IRQS			(IRQ_LOCOMO_SPI_TEND + 1)
 #elif defined(CONFIG_ARCH_LUBBOCK) || \
       defined(CONFIG_MACH_LOGICPD_PXA270) || \
-      defined(CONFIG_MACH_MAINSTONE)
+      defined(CONFIG_MACH_MAINSTONE) || \
+      defined(CONFIG_MACH_PCM027)
 #define NR_IRQS			(IRQ_BOARD_END)
 #else
 #define NR_IRQS			(IRQ_BOARD_START)
@@ -227,6 +228,13 @@
 #define IRQ_LOCOMO_LT_BASE	(IRQ_BOARD_START + 2)
 #define IRQ_LOCOMO_SPI_BASE	(IRQ_BOARD_START + 3)
 
+/* phyCORE-PXA270 (PCM027) Interrupts */
+#define PCM027_IRQ(x)          (IRQ_BOARD_START + (x))
+#define PCM027_BTDET_IRQ       PCM027_IRQ(0)
+#define PCM027_FF_RI_IRQ       PCM027_IRQ(1)
+#define PCM027_MMCDET_IRQ      PCM027_IRQ(2)
+#define PCM027_PM_5V_IRQ       PCM027_IRQ(3)
+
 /* ITE8152 irqs */
 /* add IT8152 IRQs beyond BOARD_END */
 #ifdef CONFIG_PCI_HOST_ITE8152
diff --git a/include/asm-arm/arch-pxa/pcm027.h b/include/asm-arm/arch-pxa/pcm027.h
new file mode 100644
index 000000000000..7beae1472c3e
--- /dev/null
+++ b/include/asm-arm/arch-pxa/pcm027.h
@@ -0,0 +1,75 @@
+/*
+ * linux/include/asm-arm/arch-pxa/pcm027.h
+ *
+ * (c) 2003 Phytec Messtechnik GmbH <armlinux@phytec.de>
+ * (c) 2007 Juergen Beisert <j.beisert@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ * Definitions of CPU card resources only
+ */
+
+/* I2C RTC */
+#define PCM027_RTC_IRQ_GPIO	0
+#define PCM027_RTC_IRQ		IRQ_GPIO(PCM027_RTC_IRQ_GPIO)
+#define PCM027_RTC_IRQ_EDGE	IRQ_TYPE_EDGE_FALLING
+#define ADR_PCM027_RTC		0x51	/* I2C address */
+
+/* I2C EEPROM */
+#define ADR_PCM027_EEPROM	0x54	/* I2C address */
+
+/* Ethernet chip (SMSC91C111) */
+#define PCM027_ETH_IRQ_GPIO	52
+#define PCM027_ETH_IRQ		IRQ_GPIO(PCM027_ETH_IRQ_GPIO)
+#define PCM027_ETH_IRQ_EDGE	IRQ_TYPE_EDGE_RISING
+#define PCM027_ETH_PHYS		PXA_CS5_PHYS
+#define PCM027_ETH_SIZE		(1*1024*1024)
+
+/* CAN controller SJA1000 (unsupported yet) */
+#define PCM027_CAN_IRQ_GPIO	114
+#define PCM027_CAN_IRQ		IRQ_GPIO(PCM027_CAN_IRQ_GPIO)
+#define PCM027_CAN_IRQ_EDGE	IRQ_TYPE_EDGE_FALLING
+#define PCM027_CAN_PHYS		0x22000000
+#define PCM027_CAN_SIZE		0x100
+
+/* SPI GPIO expander (unsupported yet) */
+#define PCM027_EGPIO_IRQ_GPIO	27
+#define PCM027_EGPIO_IRQ	IRQ_GPIO(PCM027_EGPIO_IRQ_GPIO)
+#define PCM027_EGPIO_IRQ_EDGE	IRQ_TYPE_EDGE_FALLING
+#define PCM027_EGPIO_CS		24
+/*
+ * TODO: Switch this pin from dedicated usage to GPIO if
+ * more than the MAX7301 device is connected to this SPI bus
+ */
+#define PCM027_EGPIO_CS_MODE	GPIO24_SFRM_MD
+
+/* Flash memory */
+#define PCM027_FLASH_PHYS	0x00000000
+#define PCM027_FLASH_SIZE	0x02000000
+
+/* onboard LEDs connected to GPIO */
+#define PCM027_LED_CPU		90
+#define PCM027_LED_HEARD_BEAT	91
+
+/*
+ * This CPU module needs a baseboard to work. After basic initializing
+ * its own devices, it calls baseboard's init function.
+ * TODO: Add your own basebaord init function and call it from
+ * inside pcm027_init(). This example here is for the developmen board.
+ * Refer pcm990-baseboard.c
+ */
+extern void pcm990_baseboard_init(void);
-- 
cgit v1.2.3-59-g8ed1b


From 8b0b9fb531d6616081104c916341e4747c094d49 Mon Sep 17 00:00:00 2001
From: Robert Schwebel <robert@schwebel.de>
Date: Tue, 8 Jan 2008 08:48:17 +0100
Subject: [ARM] 4745/1: pcm027: default configuration

This patch adds a basic configration for the phyCORE-PXA270 development kit. In this case development kit means PCM-990 (main baseboard).

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/configs/pcm027_defconfig | 1096 +++++++++++++++++++++++++++++++++++++
 1 file changed, 1096 insertions(+)
 create mode 100644 arch/arm/configs/pcm027_defconfig

(limited to 'arch')

diff --git a/arch/arm/configs/pcm027_defconfig b/arch/arm/configs/pcm027_defconfig
new file mode 100644
index 000000000000..17b9b2469570
--- /dev/null
+++ b/arch/arm/configs/pcm027_defconfig
@@ -0,0 +1,1096 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.24-rc6
+# Fri Dec 21 10:52:09 2007
+#
+CONFIG_ARM=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_MMU=y
+# CONFIG_NO_IOPORT is not set
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_ZONE_DMA=y
+CONFIG_ARCH_MTD_XIP=y
+CONFIG_VECTORS_BASE=0xffff0000
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOCK_KERNEL=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+# CONFIG_SWAP is not set
+CONFIG_SYSVIPC=y
+CONFIG_SYSVIPC_SYSCTL=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_BSD_PROCESS_ACCT=y
+# CONFIG_BSD_PROCESS_ACCT_V3 is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+# CONFIG_AUDIT is not set
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+CONFIG_UID16=y
+CONFIG_SYSCTL_SYSCALL=y
+# CONFIG_KALLSYMS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+# CONFIG_KMOD is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IOSCHED_AS is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+CONFIG_DEFAULT_NOOP=y
+CONFIG_DEFAULT_IOSCHED="noop"
+
+#
+# System Type
+#
+# CONFIG_ARCH_AAEC2000 is not set
+# CONFIG_ARCH_INTEGRATOR is not set
+# CONFIG_ARCH_REALVIEW is not set
+# CONFIG_ARCH_VERSATILE is not set
+# CONFIG_ARCH_AT91 is not set
+# CONFIG_ARCH_CLPS7500 is not set
+# CONFIG_ARCH_CLPS711X is not set
+# CONFIG_ARCH_CO285 is not set
+# CONFIG_ARCH_EBSA110 is not set
+# CONFIG_ARCH_EP93XX is not set
+# CONFIG_ARCH_FOOTBRIDGE is not set
+# CONFIG_ARCH_NETX is not set
+# CONFIG_ARCH_H720X is not set
+# CONFIG_ARCH_IMX is not set
+# CONFIG_ARCH_IOP13XX is not set
+# CONFIG_ARCH_IOP32X is not set
+# CONFIG_ARCH_IOP33X is not set
+# CONFIG_ARCH_IXP23XX is not set
+# CONFIG_ARCH_IXP2000 is not set
+# CONFIG_ARCH_IXP4XX is not set
+# CONFIG_ARCH_L7200 is not set
+# CONFIG_ARCH_KS8695 is not set
+# CONFIG_ARCH_NS9XXX is not set
+# CONFIG_ARCH_MXC is not set
+# CONFIG_ARCH_PNX4008 is not set
+CONFIG_ARCH_PXA=y
+# CONFIG_ARCH_RPC is not set
+# CONFIG_ARCH_SA1100 is not set
+# CONFIG_ARCH_S3C2410 is not set
+# CONFIG_ARCH_SHARK is not set
+# CONFIG_ARCH_LH7A40X is not set
+# CONFIG_ARCH_DAVINCI is not set
+# CONFIG_ARCH_OMAP is not set
+
+#
+# Intel PXA2xx/PXA3xx Implementations
+#
+# CONFIG_ARCH_LUBBOCK is not set
+# CONFIG_MACH_LOGICPD_PXA270 is not set
+# CONFIG_MACH_MAINSTONE is not set
+# CONFIG_ARCH_PXA_IDP is not set
+# CONFIG_PXA_SHARPSL is not set
+# CONFIG_MACH_TRIZEPS4 is not set
+# CONFIG_MACH_EM_X270 is not set
+# CONFIG_MACH_ZYLONITE is not set
+# CONFIG_MACH_ARMCORE is not set
+CONFIG_MACH_PCM027=y
+CONFIG_MACH_PCM990_BASEBOARD=y
+CONFIG_PXA27x=y
+
+#
+# Boot options
+#
+
+#
+# Power management
+#
+
+#
+# Processor Type
+#
+CONFIG_CPU_32=y
+CONFIG_CPU_XSCALE=y
+CONFIG_CPU_32v5=y
+CONFIG_CPU_ABRT_EV5T=y
+CONFIG_CPU_CACHE_VIVT=y
+CONFIG_CPU_TLB_V4WBI=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+
+#
+# Processor Features
+#
+CONFIG_ARM_THUMB=y
+# CONFIG_CPU_DCACHE_DISABLE is not set
+# CONFIG_OUTER_CACHE is not set
+CONFIG_IWMMXT=y
+CONFIG_XSCALE_PMU=y
+
+#
+# Bus support
+#
+# CONFIG_PCI_SYSCALL is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+# CONFIG_PCCARD is not set
+
+#
+# Kernel Features
+#
+CONFIG_TICK_ONESHOT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+CONFIG_PREEMPT=y
+CONFIG_HZ=100
+CONFIG_AEABI=y
+# CONFIG_OABI_COMPAT is not set
+# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4096
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_BOUNCE=y
+CONFIG_VIRT_TO_BUS=y
+CONFIG_ALIGNMENT_TRAP=y
+
+#
+# Boot options
+#
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_CMDLINE=""
+# CONFIG_XIP_KERNEL is not set
+# CONFIG_KEXEC is not set
+
+#
+# Floating point emulation
+#
+
+#
+# At least one emulation must be selected
+#
+
+#
+# Userspace binary formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Power management options
+#
+# CONFIG_PM is not set
+CONFIG_SUSPEND_UP_POSSIBLE=y
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+CONFIG_PACKET_MMAP=y
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+CONFIG_IP_PNP=y
+# CONFIG_IP_PNP_DHCP is not set
+# CONFIG_IP_PNP_BOOTP is not set
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+CONFIG_FW_LOADER=y
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+# CONFIG_MTD_AFS_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+CONFIG_MTD_CFI=y
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_GEN_PROBE=y
+# CONFIG_MTD_CFI_ADV_OPTIONS is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+CONFIG_MTD_CFI_INTELEXT=y
+# CONFIG_MTD_CFI_AMDSTD is not set
+# CONFIG_MTD_CFI_STAA is not set
+CONFIG_MTD_CFI_UTIL=y
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+# CONFIG_MTD_XIP is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_START=0x00000000
+CONFIG_MTD_PHYSMAP_LEN=0x0
+CONFIG_MTD_PHYSMAP_BANKWIDTH=0
+# CONFIG_MTD_PXA2XX is not set
+# CONFIG_MTD_ARM_INTEGRATOR is not set
+# CONFIG_MTD_SHARP_SL is not set
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+# CONFIG_BLK_DEV is not set
+# CONFIG_MISC_DEVICES is not set
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+CONFIG_SCSI=y
+CONFIG_SCSI_DMA=y
+# CONFIG_SCSI_TGT is not set
+# CONFIG_SCSI_NETLINK is not set
+CONFIG_SCSI_PROC_FS=y
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
+CONFIG_BLK_DEV_SD=y
+# CONFIG_CHR_DEV_ST is not set
+# CONFIG_CHR_DEV_OSST is not set
+# CONFIG_BLK_DEV_SR is not set
+# CONFIG_CHR_DEV_SG is not set
+# CONFIG_CHR_DEV_SCH is not set
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
+# CONFIG_SCSI_MULTI_LUN is not set
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+CONFIG_SCSI_WAIT_SCAN=m
+
+#
+# SCSI Transports
+#
+# CONFIG_SCSI_SPI_ATTRS is not set
+# CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+# CONFIG_SCSI_SRP_ATTRS is not set
+# CONFIG_SCSI_LOWLEVEL is not set
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+# CONFIG_AX88796 is not set
+CONFIG_SMC91X=y
+# CONFIG_DM9000 is not set
+# CONFIG_SMC911X is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+
+#
+# USB Network Adapters
+#
+# CONFIG_USB_CATC is not set
+# CONFIG_USB_KAWETH is not set
+# CONFIG_USB_PEGASUS is not set
+# CONFIG_USB_RTL8150 is not set
+# CONFIG_USB_USBNET is not set
+# CONFIG_WAN is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_PXA=y
+CONFIG_SERIAL_PXA_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_NVRAM is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+CONFIG_I2C=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=y
+
+#
+# I2C Algorithms
+#
+# CONFIG_I2C_ALGOBIT is not set
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALGOPCA is not set
+
+#
+# I2C Hardware Bus support
+#
+# CONFIG_I2C_GPIO is not set
+CONFIG_I2C_PXA=y
+# CONFIG_I2C_PXA_SLAVE is not set
+# CONFIG_I2C_OCORES is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_TAOS_EVM is not set
+# CONFIG_I2C_STUB is not set
+# CONFIG_I2C_TINY_USB is not set
+
+#
+# Miscellaneous I2C Chip support
+#
+# CONFIG_SENSORS_DS1337 is not set
+# CONFIG_SENSORS_DS1374 is not set
+# CONFIG_DS1682 is not set
+CONFIG_SENSORS_EEPROM=y
+# CONFIG_SENSORS_PCF8574 is not set
+# CONFIG_SENSORS_PCA9539 is not set
+# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_MAX6875 is not set
+# CONFIG_SENSORS_TSL2550 is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
+# CONFIG_I2C_DEBUG_CHIP is not set
+
+#
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_DAB is not set
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Console display driver support
+#
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_DUMMY_CONSOLE=y
+
+#
+# Sound
+#
+CONFIG_SOUND=y
+
+#
+# Advanced Linux Sound Architecture
+#
+CONFIG_SND=y
+CONFIG_SND_TIMER=y
+CONFIG_SND_PCM=y
+# CONFIG_SND_SEQUENCER is not set
+CONFIG_SND_OSSEMUL=y
+CONFIG_SND_MIXER_OSS=y
+CONFIG_SND_PCM_OSS=y
+CONFIG_SND_PCM_OSS_PLUGINS=y
+# CONFIG_SND_DYNAMIC_MINORS is not set
+CONFIG_SND_SUPPORT_OLD_API=y
+CONFIG_SND_VERBOSE_PROCFS=y
+# CONFIG_SND_VERBOSE_PRINTK is not set
+# CONFIG_SND_DEBUG is not set
+
+#
+# Generic devices
+#
+CONFIG_SND_AC97_CODEC=y
+# CONFIG_SND_DUMMY is not set
+# CONFIG_SND_MTPAV is not set
+# CONFIG_SND_SERIAL_U16550 is not set
+# CONFIG_SND_MPU401 is not set
+
+#
+# ALSA ARM devices
+#
+CONFIG_SND_PXA2XX_PCM=y
+CONFIG_SND_PXA2XX_AC97=y
+
+#
+# USB devices
+#
+# CONFIG_SND_USB_AUDIO is not set
+# CONFIG_SND_USB_CAIAQ is not set
+
+#
+# System on Chip audio support
+#
+# CONFIG_SND_SOC is not set
+
+#
+# SoC Audio support for SuperH
+#
+
+#
+# Open Sound System
+#
+# CONFIG_SOUND_PRIME is not set
+CONFIG_AC97_BUS=y
+# CONFIG_HID_SUPPORT is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+CONFIG_USB=y
+# CONFIG_USB_DEBUG is not set
+
+#
+# Miscellaneous USB options
+#
+CONFIG_USB_DEVICEFS=y
+CONFIG_USB_DEVICE_CLASS=y
+# CONFIG_USB_DYNAMIC_MINORS is not set
+# CONFIG_USB_OTG is not set
+
+#
+# USB Host Controller Drivers
+#
+# CONFIG_USB_ISP116X_HCD is not set
+CONFIG_USB_OHCI_HCD=y
+# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
+# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
+CONFIG_USB_OHCI_LITTLE_ENDIAN=y
+# CONFIG_USB_SL811_HCD is not set
+# CONFIG_USB_R8A66597_HCD is not set
+
+#
+# USB Device Class drivers
+#
+# CONFIG_USB_ACM is not set
+# CONFIG_USB_PRINTER is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# may also be needed; see USB_STORAGE Help for more information
+#
+CONFIG_USB_STORAGE=y
+# CONFIG_USB_STORAGE_DEBUG is not set
+# CONFIG_USB_STORAGE_DATAFAB is not set
+# CONFIG_USB_STORAGE_FREECOM is not set
+# CONFIG_USB_STORAGE_ISD200 is not set
+# CONFIG_USB_STORAGE_DPCM is not set
+# CONFIG_USB_STORAGE_USBAT is not set
+# CONFIG_USB_STORAGE_SDDR09 is not set
+# CONFIG_USB_STORAGE_SDDR55 is not set
+# CONFIG_USB_STORAGE_JUMPSHOT is not set
+# CONFIG_USB_STORAGE_ALAUDA is not set
+# CONFIG_USB_STORAGE_KARMA is not set
+# CONFIG_USB_LIBUSUAL is not set
+
+#
+# USB Imaging devices
+#
+# CONFIG_USB_MDC800 is not set
+# CONFIG_USB_MICROTEK is not set
+# CONFIG_USB_MON is not set
+
+#
+# USB port drivers
+#
+
+#
+# USB Serial Converter support
+#
+# CONFIG_USB_SERIAL is not set
+
+#
+# USB Miscellaneous drivers
+#
+# CONFIG_USB_EMI62 is not set
+# CONFIG_USB_EMI26 is not set
+# CONFIG_USB_ADUTUX is not set
+# CONFIG_USB_AUERSWALD is not set
+# CONFIG_USB_RIO500 is not set
+# CONFIG_USB_LEGOTOWER is not set
+# CONFIG_USB_LCD is not set
+# CONFIG_USB_BERRY_CHARGE is not set
+# CONFIG_USB_LED is not set
+# CONFIG_USB_CYPRESS_CY7C63 is not set
+# CONFIG_USB_CYTHERM is not set
+# CONFIG_USB_PHIDGET is not set
+# CONFIG_USB_IDMOUSE is not set
+# CONFIG_USB_FTDI_ELAN is not set
+# CONFIG_USB_APPLEDISPLAY is not set
+# CONFIG_USB_LD is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_IOWARRIOR is not set
+# CONFIG_USB_TEST is not set
+
+#
+# USB DSL modem support
+#
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+CONFIG_MMC=y
+# CONFIG_MMC_DEBUG is not set
+# CONFIG_MMC_UNSAFE_RESUME is not set
+
+#
+# MMC/SD Card Drivers
+#
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_BLOCK_BOUNCE=y
+# CONFIG_SDIO_UART is not set
+
+#
+# MMC/SD Host Controller Drivers
+#
+CONFIG_MMC_PXA=y
+# CONFIG_NEW_LEDS is not set
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+# CONFIG_RTC_DEBUG is not set
+
+#
+# RTC interfaces
+#
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+# CONFIG_RTC_DRV_TEST is not set
+
+#
+# I2C RTC drivers
+#
+# CONFIG_RTC_DRV_DS1307 is not set
+# CONFIG_RTC_DRV_DS1374 is not set
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+# CONFIG_RTC_DRV_RS5C372 is not set
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+CONFIG_RTC_DRV_PCF8563=m
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
+
+#
+# SPI RTC drivers
+#
+
+#
+# Platform RTC drivers
+#
+# CONFIG_RTC_DRV_CMOS is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
+
+#
+# on-CPU RTC drivers
+#
+CONFIG_RTC_DRV_SA1100=m
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=m
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+CONFIG_EXT3_FS=m
+CONFIG_EXT3_FS_XATTR=y
+# CONFIG_EXT3_FS_POSIX_ACL is not set
+# CONFIG_EXT3_FS_SECURITY is not set
+# CONFIG_EXT4DEV_FS is not set
+CONFIG_JBD=m
+CONFIG_FS_MBCACHE=m
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+# CONFIG_INOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+CONFIG_FAT_FS=m
+# CONFIG_MSDOS_FS is not set
+CONFIG_VFAT_FS=m
+CONFIG_FAT_DEFAULT_CODEPAGE=850
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-15"
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_FS_DEBUG=0
+CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
+# CONFIG_JFFS2_SUMMARY is not set
+# CONFIG_JFFS2_FS_XATTR is not set
+# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
+CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS2_LZO is not set
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
+# CONFIG_NFS_V4 is not set
+CONFIG_NFS_DIRECTIO=y
+# CONFIG_NFSD is not set
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_SUNRPC_BIND34 is not set
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_ACORN_PARTITION is not set
+# CONFIG_OSF_PARTITION is not set
+# CONFIG_AMIGA_PARTITION is not set
+# CONFIG_ATARI_PARTITION is not set
+# CONFIG_MAC_PARTITION is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_BSD_DISKLABEL is not set
+# CONFIG_MINIX_SUBPARTITION is not set
+# CONFIG_SOLARIS_X86_PARTITION is not set
+# CONFIG_UNIXWARE_DISKLABEL is not set
+# CONFIG_LDM_PARTITION is not set
+# CONFIG_SGI_PARTITION is not set
+# CONFIG_ULTRIX_PARTITION is not set
+# CONFIG_SUN_PARTITION is not set
+# CONFIG_KARMA_PARTITION is not set
+# CONFIG_EFI_PARTITION is not set
+# CONFIG_SYSV68_PARTITION is not set
+CONFIG_NLS=y
+CONFIG_NLS_DEFAULT="iso8859-15"
+# CONFIG_NLS_CODEPAGE_437 is not set
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+CONFIG_NLS_CODEPAGE_850=y
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+# CONFIG_NLS_ASCII is not set
+# CONFIG_NLS_ISO8859_1 is not set
+# CONFIG_NLS_ISO8859_2 is not set
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+CONFIG_NLS_ISO8859_15=y
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+# CONFIG_NLS_UTF8 is not set
+# CONFIG_DLM is not set
+# CONFIG_INSTRUMENTATION is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_HEADERS_CHECK is not set
+# CONFIG_DEBUG_KERNEL is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+CONFIG_FRAME_POINTER=y
+# CONFIG_SAMPLES is not set
+# CONFIG_DEBUG_USER is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
-- 
cgit v1.2.3-59-g8ed1b


From 2e927b76267a57a44c018ffcc64cde5fedde1fcf Mon Sep 17 00:00:00 2001
From: Robert Schwebel <robert@schwebel.de>
Date: Tue, 8 Jan 2008 08:52:04 +0100
Subject: [ARM] 4747/1: pcm027: support for pcm990 baseboard for phyCORE-PXA270

This patch adds baseboard support for the phyCORE-PXA270 development
kit (aka PCM-990).

This example shows how to use some phyCORE-PXA270 CPU module features
on a baseboard in a standard manner. It could be used as a starting
point for custom baseboard development.

V2:
 After comments by Eric Miao:
  - IRQ chained handler fixed
  - video/graphic support moved to separate patch
  - ifdef/endif hell reduced ;-)

V3:
 After comments by Russell King
  - initialise the mmci platform data statically

V4:
 After comments by Russell King
  - wrong return value in pcm990_mci_init() fixed

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/Kconfig                   |   9 +
 arch/arm/mach-pxa/Makefile                  |   1 +
 arch/arm/mach-pxa/pcm990-baseboard.c        | 330 ++++++++++++++++++++++++++++
 include/asm-arm/arch-pxa/pcm990_baseboard.h | 275 +++++++++++++++++++++++
 4 files changed, 615 insertions(+)
 create mode 100644 arch/arm/mach-pxa/pcm990-baseboard.c
 create mode 100644 include/asm-arm/arch-pxa/pcm990_baseboard.h

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 958303c100b0..e5b7063ed818 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -130,6 +130,15 @@ config MACH_PCM027
 
 endchoice
 
+choice
+	prompt "Used baseboard"
+	depends on MACH_PCM027
+
+config MACH_PCM990_BASEBOARD
+	bool "PHYTEC PCM-990 development board"
+
+endchoice
+
 if PXA_SHARPSL
 
 choice
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 61d301805c80..1af56805b954 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -21,6 +21,7 @@ obj-$(CONFIG_PXA_SHARP_Cxx00)	+= spitz.o corgi_ssp.o corgi_lcd.o sharpsl_pm.o sp
 obj-$(CONFIG_MACH_AKITA)	+= akita-ioexp.o
 obj-$(CONFIG_MACH_POODLE)	+= poodle.o corgi_ssp.o
 obj-$(CONFIG_MACH_PCM027)	+= pcm027.o
+obj-$(CONFIG_MACH_PCM990_BASEBOARD)	+= pcm990-baseboard.o
 obj-$(CONFIG_MACH_TOSA)		+= tosa.o
 obj-$(CONFIG_MACH_EM_X270)	+= em-x270.o
 obj-$(CONFIG_MACH_MAGICIAN)	+= magician.o
diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
new file mode 100644
index 000000000000..3dda16a20049
--- /dev/null
+++ b/arch/arm/mach-pxa/pcm990-baseboard.c
@@ -0,0 +1,330 @@
+/*
+ *  arch/arm/mach-pxa/pcm990-baseboard.c
+ *  Support for the Phytec phyCORE-PXA270 Development Platform (PCM-990).
+ *
+ *  Refer
+ *   http://www.phytec.com/products/rdk/ARM-XScale/phyCORE-XScale-PXA270.html
+ *  for additional hardware info
+ *
+ *  Author:	Juergen Kilb
+ *  Created:	April 05, 2005
+ *  Copyright:	Phytec Messtechnik GmbH
+ *  e-Mail:	armlinux@phytec.de
+ *
+ *  based on Intel Mainstone Board
+ *
+ *  Copyright 2007 Juergen Beisert @ Pengutronix (j.beisert@pengutronix.de)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/ide.h>
+#include <asm/mach/map.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/mmc.h>
+#include <asm/arch/ohci.h>
+#include <asm/arch/pcm990_baseboard.h>
+
+/*
+ * The PCM-990 development baseboard uses PCM-027's hardeware in the
+ * following way:
+ *
+ * - LCD support is in use
+ *  - GPIO16 is output for back light on/off with PWM
+ *  - GPIO58 ... GPIO73 are outputs for display data
+ *  - GPIO74 is output output for LCDFCLK
+ *  - GPIO75 is output for LCDLCLK
+ *  - GPIO76 is output for LCDPCLK
+ *  - GPIO77 is output for LCDBIAS
+ * - MMC support is in use
+ *  - GPIO32 is output for MMCCLK
+ *  - GPIO92 is MMDAT0
+ *  - GPIO109 is MMDAT1
+ *  - GPIO110 is MMCS0
+ *  - GPIO111 is MMCS1
+ *  - GPIO112 is MMCMD
+ * - IDE/CF card is in use
+ *  - GPIO48 is output /POE
+ *  - GPIO49 is output /PWE
+ *  - GPIO50 is output /PIOR
+ *  - GPIO51 is output /PIOW
+ *  - GPIO54 is output /PCE2
+ *  - GPIO55 is output /PREG
+ *  - GPIO56 is input /PWAIT
+ *  - GPIO57 is output /PIOS16
+ *  - GPIO79 is output PSKTSEL
+ *  - GPIO85 is output /PCE1
+ * - FFUART is in use
+ *  - GPIO34 is input FFRXD
+ *  - GPIO35 is input FFCTS
+ *  - GPIO36 is input FFDCD
+ *  - GPIO37 is input FFDSR
+ *  - GPIO38 is input FFRI
+ *  - GPIO39 is output FFTXD
+ *  - GPIO40 is output FFDTR
+ *  - GPIO41 is output FFRTS
+ * - BTUART is in use
+ *  - GPIO42 is input BTRXD
+ *  - GPIO43 is output BTTXD
+ *  - GPIO44 is input BTCTS
+ *  - GPIO45 is output BTRTS
+ * - IRUART is in use
+ *  - GPIO46 is input STDRXD
+ *  - GPIO47 is output STDTXD
+ * - AC97 is in use*)
+ *  - GPIO28 is input AC97CLK
+ *  - GPIO29 is input AC97DatIn
+ *  - GPIO30 is output AC97DatO
+ *  - GPIO31 is output AC97SYNC
+ *  - GPIO113 is output AC97_RESET
+ * - SSP is in use
+ *  - GPIO23 is output SSPSCLK
+ *  - GPIO24 is output chip select to Max7301
+ *  - GPIO25 is output SSPTXD
+ *  - GPIO26 is input SSPRXD
+ *  - GPIO27 is input for Max7301 IRQ
+ *  - GPIO53 is input SSPSYSCLK
+ * - SSP3 is in use
+ *  - GPIO81 is output SSPTXD3
+ *  - GPIO82 is input SSPRXD3
+ *  - GPIO83 is output SSPSFRM
+ *  - GPIO84 is output SSPCLK3
+ *
+ * Otherwise claimed GPIOs:
+ * GPIO1 -> IRQ from user switch
+ * GPIO9 -> IRQ from power management
+ * GPIO10 -> IRQ from WML9712 AC97 controller
+ * GPIO11 -> IRQ from IDE controller
+ * GPIO12 -> IRQ from CF controller
+ * GPIO13 -> IRQ from CF controller
+ * GPIO14 -> GPIO free
+ * GPIO15 -> /CS1 selects baseboard's Control CPLD (U7, 16 bit wide data path)
+ * GPIO19 -> GPIO free
+ * GPIO20 -> /SDCS2
+ * GPIO21 -> /CS3 PC card socket select
+ * GPIO33 -> /CS5  network controller select
+ * GPIO78 -> /CS2  (16 bit wide data path)
+ * GPIO80 -> /CS4  (16 bit wide data path)
+ * GPIO86 -> GPIO free
+ * GPIO87 -> GPIO free
+ * GPIO90 -> LED0 on CPU module
+ * GPIO91 -> LED1 on CPI module
+ * GPIO117 -> SCL
+ * GPIO118 -> SDA
+ */
+
+static unsigned long pcm990_irq_enabled;
+
+static void pcm990_mask_ack_irq(unsigned int irq)
+{
+	int pcm990_irq = (irq - PCM027_IRQ(0));
+	PCM990_INTMSKENA = (pcm990_irq_enabled &= ~(1 << pcm990_irq));
+}
+
+static void pcm990_unmask_irq(unsigned int irq)
+{
+	int pcm990_irq = (irq - PCM027_IRQ(0));
+	/* the irq can be acknowledged only if deasserted, so it's done here */
+	PCM990_INTSETCLR |= 1 << pcm990_irq;
+	PCM990_INTMSKENA  = (pcm990_irq_enabled |= (1 << pcm990_irq));
+}
+
+static struct irq_chip pcm990_irq_chip = {
+	.mask_ack	= pcm990_mask_ack_irq,
+	.unmask		= pcm990_unmask_irq,
+};
+
+static void pcm990_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	unsigned long pending = (~PCM990_INTSETCLR) & pcm990_irq_enabled;
+
+	do {
+		GEDR(PCM990_CTRL_INT_IRQ_GPIO) =
+					GPIO_bit(PCM990_CTRL_INT_IRQ_GPIO);
+		if (likely(pending)) {
+			irq = PCM027_IRQ(0) + __ffs(pending);
+			desc = irq_desc + irq;
+			desc_handle_irq(irq, desc);
+		}
+		pending = (~PCM990_INTSETCLR) & pcm990_irq_enabled;
+	} while (pending);
+}
+
+static void __init pcm990_init_irq(void)
+{
+	int irq;
+
+	/* setup extra PCM990 irqs */
+	for (irq = PCM027_IRQ(0); irq <= PCM027_IRQ(3); irq++) {
+		set_irq_chip(irq, &pcm990_irq_chip);
+		set_irq_handler(irq, handle_level_irq);
+		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+	}
+
+	PCM990_INTMSKENA = 0x00;	/* disable all Interrupts */
+	PCM990_INTSETCLR = 0xFF;
+
+	set_irq_chained_handler(PCM990_CTRL_INT_IRQ, pcm990_irq_handler);
+	set_irq_type(PCM990_CTRL_INT_IRQ, PCM990_CTRL_INT_IRQ_EDGE);
+}
+
+static int pcm990_mci_init(struct device *dev, irq_handler_t mci_detect_int,
+			void *data)
+{
+	int err;
+
+	/*
+	 * enable GPIO for PXA27x MMC controller
+	 */
+	pxa_gpio_mode(GPIO32_MMCCLK_MD);
+	pxa_gpio_mode(GPIO112_MMCCMD_MD);
+	pxa_gpio_mode(GPIO92_MMCDAT0_MD);
+	pxa_gpio_mode(GPIO109_MMCDAT1_MD);
+	pxa_gpio_mode(GPIO110_MMCDAT2_MD);
+	pxa_gpio_mode(GPIO111_MMCDAT3_MD);
+
+	err = request_irq(PCM027_MMCDET_IRQ, mci_detect_int, IRQF_DISABLED,
+			     "MMC card detect", data);
+	if (err)
+		printk(KERN_ERR "pcm990_mci_init: MMC/SD: can't request MMC "
+				"card detect IRQ\n");
+
+	return err;
+}
+
+static void pcm990_mci_setpower(struct device *dev, unsigned int vdd)
+{
+	struct pxamci_platform_data *p_d = dev->platform_data;
+
+	if ((1 << vdd) & p_d->ocr_mask)
+		__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG5) =
+						PCM990_CTRL_MMC2PWR;
+	else
+		__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG5) =
+						~PCM990_CTRL_MMC2PWR;
+}
+
+static void pcm990_mci_exit(struct device *dev, void *data)
+{
+	free_irq(PCM027_MMCDET_IRQ, data);
+}
+
+#define MSECS_PER_JIFFY (1000/HZ)
+
+static struct pxamci_platform_data pcm990_mci_platform_data = {
+	.detect_delay	= 250 / MSECS_PER_JIFFY,
+	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,
+	.init 		= pcm990_mci_init,
+	.setpower 	= pcm990_mci_setpower,
+	.exit		= pcm990_mci_exit,
+};
+
+/*
+ * init OHCI hardware to work with
+ *
+ * Note: Only USB port 1 (host only) is connected
+ *
+ * GPIO88 (USBHPWR#1): overcurrent in, overcurrent when low
+ * GPIO89 (USBHPEN#1): power-on out, on when low
+ */
+static int pcm990_ohci_init(struct device *dev)
+{
+	pxa_gpio_mode(PCM990_USB_OVERCURRENT);
+	pxa_gpio_mode(PCM990_USB_PWR_EN);
+	/*
+	 * disable USB port 2 and 3
+	 * power sense is active low
+	 */
+	UHCHR = ((UHCHR) | UHCHR_PCPL | UHCHR_PSPL | UHCHR_SSEP2 |
+				UHCHR_SSEP3) & ~(UHCHR_SSEP1 | UHCHR_SSE);
+	/*
+	 * wait 10ms after Power on
+	 * overcurrent per port
+	 * power switch per port
+	 */
+	UHCRHDA = (5<<24) | (1<<11) | (1<<8);	/* FIXME: Required? */
+
+	return 0;
+}
+
+static struct pxaohci_platform_data pcm990_ohci_platform_data = {
+	.port_mode	= PMM_PERPORT_MODE,
+	.init		= pcm990_ohci_init,
+	.exit		= NULL,
+};
+
+/*
+ * AC97 support
+ * Note: The connected AC97 mixer also reports interrupts at PCM990_AC97_IRQ
+ */
+static struct resource pxa27x_ac97_resources[] = {
+	[0] = {
+		.start  = 0x40500000,
+		.end	= 0x40500000 + 0xfff,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = IRQ_AC97,
+		.end    = IRQ_AC97,
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
+static u64 pxa_ac97_dmamask = 0xffffffffUL;
+
+static struct platform_device pxa27x_device_ac97 = {
+	.name           = "pxa2xx-ac97",
+	.id             = -1,
+	.dev            = {
+		.dma_mask = &pxa_ac97_dmamask,
+		.coherent_dma_mask = 0xffffffff,
+	},
+	.num_resources  = ARRAY_SIZE(pxa27x_ac97_resources),
+	.resource       = pxa27x_ac97_resources,
+};
+
+/*
+ * enable generic access to the base board control CPLDs U6 and U7
+ */
+static struct map_desc pcm990_io_desc[] __initdata = {
+	{
+		.virtual	= PCM990_CTRL_BASE,
+		.pfn		= __phys_to_pfn(PCM990_CTRL_PHYS),
+		.length		= PCM990_CTRL_SIZE,
+		.type		= MT_DEVICE	/* CPLD */
+	}, {
+		.virtual	= PCM990_CF_PLD_BASE,
+		.pfn		= __phys_to_pfn(PCM990_CF_PLD_PHYS),
+		.length		= PCM990_CF_PLD_SIZE,
+		.type		= MT_DEVICE	/* CPLD */
+	}
+};
+
+/*
+ * system init for baseboard usage. Will be called by pcm027 init.
+ *
+ * Add platform devices present on this baseboard and init
+ * them from CPU side as far as required to use them later on
+ */
+void __init pcm990_baseboard_init(void)
+{
+	/* register CPLD access */
+	iotable_init(pcm990_io_desc, ARRAY_SIZE(pcm990_io_desc));
+
+	/* register CPLD's IRQ controller */
+	pcm990_init_irq();
+
+	platform_device_register(&pxa27x_device_ac97);
+
+	/* MMC */
+	pxa_set_mci_info(&pcm990_mci_platform_data);
+
+	/* USB host */
+	pxa_set_ohci_info(&pcm990_ohci_platform_data);
+
+	printk(KERN_INFO"PCM-990 Evaluation baseboard initialized\n");
+}
diff --git a/include/asm-arm/arch-pxa/pcm990_baseboard.h b/include/asm-arm/arch-pxa/pcm990_baseboard.h
new file mode 100644
index 000000000000..b699d0d7bdb2
--- /dev/null
+++ b/include/asm-arm/arch-pxa/pcm990_baseboard.h
@@ -0,0 +1,275 @@
+/*
+ * include/asm-arm/arch-pxa/pcm990_baseboard.h
+ *
+ * (c) 2003 Phytec Messtechnik GmbH <armlinux@phytec.de>
+ * (c) 2007 Juergen Beisert <j.beisert@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <asm/arch/pcm027.h>
+
+/*
+ * definitions relevant only when the PCM-990
+ * development base board is in use
+ */
+
+/* CPLD's interrupt controller is connected to PCM-027 GPIO 9 */
+#define PCM990_CTRL_INT_IRQ_GPIO	9
+#define PCM990_CTRL_INT_IRQ		IRQ_GPIO(PCM990_CTRL_INT_IRQ_GPIO)
+#define PCM990_CTRL_INT_IRQ_EDGE	IRQT_RISING
+#define PCM990_CTRL_PHYS		PXA_CS1_PHYS	/* 16-Bit */
+#define PCM990_CTRL_BASE		0xea000000
+#define PCM990_CTRL_SIZE		(1*1024*1024)
+
+#define PCM990_CTRL_PWR_IRQ_GPIO	14
+#define PCM990_CTRL_PWR_IRQ		IRQ_GPIO(PCM990_CTRL_PWR_IRQ_GPIO)
+#define PCM990_CTRL_PWR_IRQ_EDGE	IRQT_RISING
+
+/* visible CPLD (U7) registers */
+#define PCM990_CTRL_REG0	0x0000	/* RESET REGISTER */
+#define PCM990_CTRL_SYSRES	0x0001	/* System RESET REGISTER */
+#define PCM990_CTRL_RESOUT	0x0002	/* RESETOUT Enable REGISTER */
+#define PCM990_CTRL_RESGPIO	0x0004	/* RESETGPIO Enable REGISTER */
+
+#define PCM990_CTRL_REG1	0x0002	/* Power REGISTER */
+#define PCM990_CTRL_5VOFF	0x0001	/* Disable  5V Regulators */
+#define PCM990_CTRL_CANPWR	0x0004	/* Enable CANPWR ADUM */
+#define PCM990_CTRL_PM_5V	0x0008	/* Read 5V OK */
+
+#define PCM990_CTRL_REG2	0x0004	/* LED REGISTER */
+#define PCM990_CTRL_LEDPWR	0x0001	/* POWER LED enable */
+#define PCM990_CTRL_LEDBAS	0x0002	/* BASIS LED enable */
+#define PCM990_CTRL_LEDUSR	0x0004	/* USER LED enable */
+
+#define PCM990_CTRL_REG3	0x0006	/* LCD CTRL REGISTER 3 */
+#define PCM990_CTRL_LCDPWR	0x0001	/* RW LCD Power on */
+#define PCM990_CTRL_LCDON	0x0002	/* RW LCD Latch on */
+#define PCM990_CTRL_LCDPOS1	0x0004	/* RW POS 1 */
+#define PCM990_CTRL_LCDPOS2	0x0008	/* RW POS 2 */
+
+#define PCM990_CTRL_REG4	0x0008	/* MMC1 CTRL REGISTER 4 */
+#define PCM990_CTRL_MMC1PWR	0x0001 /* RW MMC1 Power on */
+
+#define PCM990_CTRL_REG5	0x000A	/* MMC2 CTRL REGISTER 5 */
+#define PCM990_CTRL_MMC2PWR	0x0001	/* RW MMC2 Power on */
+#define PCM990_CTRL_MMC2LED	0x0002	/* RW MMC2 LED */
+#define PCM990_CTRL_MMC2DE	0x0004	/* R MMC2 Card detect */
+#define PCM990_CTRL_MMC2WP	0x0008	/* R MMC2 Card write protect */
+
+#define PCM990_CTRL_REG6	0x000C	/* Interrupt Clear REGISTER */
+#define PCM990_CTRL_INTC0	0x0001	/* Clear Reg BT Detect */
+#define PCM990_CTRL_INTC1	0x0002	/* Clear Reg FR RI */
+#define PCM990_CTRL_INTC2	0x0004	/* Clear Reg MMC1 Detect */
+#define PCM990_CTRL_INTC3	0x0008	/* Clear Reg PM_5V off */
+
+#define PCM990_CTRL_REG7	0x000E	/* Interrupt Enable REGISTER */
+#define PCM990_CTRL_ENAINT0	0x0001	/* Enable Int BT Detect */
+#define PCM990_CTRL_ENAINT1	0x0002	/* Enable Int FR RI */
+#define PCM990_CTRL_ENAINT2	0x0004	/* Enable Int MMC1 Detect */
+#define PCM990_CTRL_ENAINT3	0x0008	/* Enable Int PM_5V off */
+
+#define PCM990_CTRL_REG8	0x0014	/* Uart REGISTER */
+#define PCM990_CTRL_FFSD	0x0001	/* BT Uart Enable */
+#define PCM990_CTRL_BTSD	0x0002	/* FF Uart Enable */
+#define PCM990_CTRL_FFRI	0x0004	/* FF Uart RI detect */
+#define PCM990_CTRL_BTRX	0x0008	/* BT Uart Rx detect */
+
+#define PCM990_CTRL_REG9	0x0010	/* AC97 Flash REGISTER */
+#define PCM990_CTRL_FLWP	0x0001	/* pC Flash Write Protect */
+#define PCM990_CTRL_FLDIS	0x0002	/* pC Flash Disable */
+#define PCM990_CTRL_AC97ENA	0x0004	/* Enable AC97 Expansion */
+
+#define PCM990_CTRL_REG10	0x0012	/* GPS-REGISTER */
+#define PCM990_CTRL_GPSPWR	0x0004	/* GPS-Modul Power on */
+#define PCM990_CTRL_GPSENA	0x0008	/* GPS-Modul Enable */
+
+#define PCM990_CTRL_REG11	0x0014	/* Accu REGISTER */
+#define PCM990_CTRL_ACENA	0x0001	/* Charge Enable */
+#define PCM990_CTRL_ACSEL	0x0002	/* Charge Akku -> DC Enable */
+#define PCM990_CTRL_ACPRES	0x0004	/* DC Present */
+#define PCM990_CTRL_ACALARM	0x0008	/* Error Akku */
+
+#define PCM990_CTRL_P2V(x)	((x) - PCM990_CTRL_PHYS + PCM990_CTRL_BASE)
+#define PCM990_CTRL_V2P(x)	((x) - PCM990_CTRL_BASE + PCM990_CTRL_PHYS)
+
+#ifndef __ASSEMBLY__
+#  define __PCM990_CTRL_REG(x) \
+		(*((volatile unsigned char *)PCM990_CTRL_P2V(x)))
+#else
+#  define __PCM990_CTRL_REG(x)	PCM990_CTRL_P2V(x)
+#endif
+
+#define PCM990_INTMSKENA __PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG7)
+#define PCM990_INTSETCLR __PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG6)
+#define PCM990_CTRL0	__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG0)
+#define PCM990_CTRL1	__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG1)
+#define PCM990_CTRL2	__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG2)
+#define PCM990_CTRL3	__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG3)
+#define PCM990_CTRL4	__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG4)
+#define PCM990_CTRL5	__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG5)
+#define PCM990_CTRL6	__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG6)
+#define PCM990_CTRL7	__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG7)
+#define PCM990_CTRL8	__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG8)
+#define PCM990_CTRL9	__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG9)
+#define PCM990_CTRL10	__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG10)
+#define PCM990_CTRL11	__PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG11)
+
+
+/*
+ * IDE
+ */
+#define PCM990_IDE_IRQ_GPIO	13
+#define PCM990_IDE_IRQ		IRQ_GPIO(PCM990_IDE_IRQ_GPIO)
+#define PCM990_IDE_IRQ_EDGE	IRQT_RISING
+#define PCM990_IDE_PLD_PHYS	0x20000000	/* 16 bit wide */
+#define PCM990_IDE_PLD_BASE	0xee000000
+#define PCM990_IDE_PLD_SIZE	(1*1024*1024)
+
+/* visible CPLD (U6) registers */
+#define PCM990_IDE_PLD_REG0	0x1000	/* OFFSET IDE REGISTER 0 */
+#define PCM990_IDE_PM5V		0x0004	/* R System VCC_5V */
+#define PCM990_IDE_STBY		0x0008	/* R System StandBy */
+
+#define PCM990_IDE_PLD_REG1	0x1002	/* OFFSET IDE REGISTER 1 */
+#define PCM990_IDE_IDEMODE	0x0001	/* R TrueIDE Mode */
+#define PCM990_IDE_DMAENA	0x0004	/* RW DMA Enable */
+#define PCM990_IDE_DMA1_0	0x0008	/* RW 1=DREQ1 0=DREQ0 */
+
+#define PCM990_IDE_PLD_REG2	0x1004	/* OFFSET IDE REGISTER 2 */
+#define PCM990_IDE_RESENA	0x0001	/* RW IDE Reset Bit enable */
+#define PCM990_IDE_RES		0x0002	/* RW IDE Reset Bit */
+#define PCM990_IDE_RDY		0x0008	/* RDY */
+
+#define PCM990_IDE_PLD_REG3	0x1006	/* OFFSET IDE REGISTER 3 */
+#define PCM990_IDE_IDEOE	0x0001	/* RW Latch on Databus */
+#define PCM990_IDE_IDEON	0x0002	/* RW Latch on Control Address */
+#define PCM990_IDE_IDEIN	0x0004	/* RW Latch on Interrupt usw. */
+
+#define PCM990_IDE_PLD_REG4	0x1008	/* OFFSET IDE REGISTER 4 */
+#define PCM990_IDE_PWRENA	0x0001	/* RW IDE Power enable */
+#define PCM990_IDE_5V		0x0002	/* R IDE Power 5V */
+#define PCM990_IDE_PWG		0x0008	/* R IDE Power is on */
+
+#define PCM990_IDE_PLD_P2V(x) ((x) - PCM990_IDE_PLD_PHYS + PCM990_IDE_PLD_BASE)
+#define PCM990_IDE_PLD_V2P(x) ((x) - PCM990_IDE_PLD_BASE + PCM990_IDE_PLD_PHYS)
+
+#ifndef __ASSEMBLY__
+# define  __PCM990_IDE_PLD_REG(x) \
+	(*((volatile unsigned char *)PCM990_IDE_PLD_P2V(x)))
+#else
+# define  __PCM990_IDE_PLD_REG(x)	PCM990_IDE_PLD_P2V(x)
+#endif
+
+#define PCM990_IDE0 \
+	__PCM990_IDE_PLD_REG(PCM990_IDE_PLD_PHYS + PCM990_IDE_PLD_REG0)
+#define PCM990_IDE1 \
+	__PCM990_IDE_PLD_REG(PCM990_IDE_PLD_PHYS + PCM990_IDE_PLD_REG1)
+#define PCM990_IDE2 \
+	__PCM990_IDE_PLD_REG(PCM990_IDE_PLD_PHYS + PCM990_IDE_PLD_REG2)
+#define PCM990_IDE3 \
+	__PCM990_IDE_PLD_REG(PCM990_IDE_PLD_PHYS + PCM990_IDE_PLD_REG3)
+#define PCM990_IDE4 \
+	__PCM990_IDE_PLD_REG(PCM990_IDE_PLD_PHYS + PCM990_IDE_PLD_REG4)
+
+/*
+ * Compact Flash
+ */
+#define PCM990_CF_IRQ_GPIO	11
+#define PCM990_CF_IRQ		IRQ_GPIO(PCM990_CF_IRQ_GPIO)
+#define PCM990_CF_IRQ_EDGE	IRQT_RISING
+
+#define PCM990_CF_CD_GPIO	12
+#define PCM990_CF_CD		IRQ_GPIO(PCM990_CF_CD_GPIO)
+#define PCM990_CF_CD_EDGE	IRQT_RISING
+
+#define PCM990_CF_PLD_PHYS	0x30000000	/* 16 bit wide */
+#define PCM990_CF_PLD_BASE	0xef000000
+#define PCM990_CF_PLD_SIZE	(1*1024*1024)
+#define PCM990_CF_PLD_P2V(x)	((x) - PCM990_CF_PLD_PHYS + PCM990_CF_PLD_BASE)
+#define PCM990_CF_PLD_V2P(x)	((x) - PCM990_CF_PLD_BASE + PCM990_CF_PLD_PHYS)
+
+/* visible CPLD (U6) registers */
+#define PCM990_CF_PLD_REG0	0x1000	/* OFFSET CF REGISTER 0 */
+#define PCM990_CF_REG0_LED	0x0001	/* RW LED on */
+#define PCM990_CF_REG0_BLK	0x0002	/* RW LED flash when access */
+#define PCM990_CF_REG0_PM5V	0x0004	/* R System VCC_5V enable */
+#define PCM990_CF_REG0_STBY	0x0008	/* R System StandBy */
+
+#define PCM990_CF_PLD_REG1	0x1002	/* OFFSET CF REGISTER 1 */
+#define PCM990_CF_REG1_IDEMODE	0x0001	/* RW CF card run as TrueIDE */
+#define PCM990_CF_REG1_CF0	0x0002	/* RW CF card at ADDR 0x28000000 */
+
+#define PCM990_CF_PLD_REG2	0x1004	/* OFFSET CF REGISTER 2 */
+#define PCM990_CF_REG2_RES	0x0002	/* RW CF RESET BIT */
+#define PCM990_CF_REG2_RDYENA	0x0004	/* RW Enable CF_RDY */
+#define PCM990_CF_REG2_RDY	0x0008	/* R CF_RDY auf PWAIT */
+
+#define PCM990_CF_PLD_REG3	0x1006	/* OFFSET CF REGISTER 3 */
+#define PCM990_CF_REG3_CFOE	0x0001	/* RW Latch on Databus */
+#define PCM990_CF_REG3_CFON	0x0002	/* RW Latch on Control Address */
+#define PCM990_CF_REG3_CFIN	0x0004	/* RW Latch on Interrupt usw. */
+#define PCM990_CF_REG3_CFCD	0x0008	/* RW Latch on CD1/2 VS1/2 usw */
+
+#define PCM990_CF_PLD_REG4	0x1008	/* OFFSET CF REGISTER 4 */
+#define PCM990_CF_REG4_PWRENA	0x0001	/* RW CF Power on (CD1/2 = "00") */
+#define PCM990_CF_REG4_5_3V	0x0002	/* RW 1 = 5V CF_VCC 0 = 3 V CF_VCC */
+#define PCM990_CF_REG4_3B	0x0004	/* RW 3.0V Backup from VCC (5_3V=0) */
+#define PCM990_CF_REG4_PWG	0x0008	/* R CF-Power is on */
+
+#define PCM990_CF_PLD_REG5	0x100A	/* OFFSET CF REGISTER 5 */
+#define PCM990_CF_REG5_BVD1	0x0001	/* R CF /BVD1 */
+#define PCM990_CF_REG5_BVD2	0x0002	/* R CF /BVD2 */
+#define PCM990_CF_REG5_VS1	0x0004	/* R CF /VS1 */
+#define PCM990_CF_REG5_VS2	0x0008	/* R CF /VS2 */
+
+#define PCM990_CF_PLD_REG6	0x100C	/* OFFSET CF REGISTER 6 */
+#define PCM990_CF_REG6_CD1	0x0001	/* R CF Card_Detect1 */
+#define PCM990_CF_REG6_CD2	0x0002	/* R CF Card_Detect2 */
+
+#ifndef __ASSEMBLY__
+#  define  __PCM990_CF_PLD_REG(x) \
+	(*((volatile unsigned char *)PCM990_CF_PLD_P2V(x)))
+#else
+#  define  __PCM990_CF_PLD_REG(x)	PCM990_CF_PLD_P2V(x)
+#endif
+
+#define PCM990_CF0 __PCM990_CF_PLD_REG(PCM990_CF_PLD_PHYS + PCM990_CF_PLD_REG0)
+#define PCM990_CF1 __PCM990_CF_PLD_REG(PCM990_CF_PLD_PHYS + PCM990_CF_PLD_REG1)
+#define PCM990_CF2 __PCM990_CF_PLD_REG(PCM990_CF_PLD_PHYS + PCM990_CF_PLD_REG2)
+#define PCM990_CF3 __PCM990_CF_PLD_REG(PCM990_CF_PLD_PHYS + PCM990_CF_PLD_REG3)
+#define PCM990_CF4 __PCM990_CF_PLD_REG(PCM990_CF_PLD_PHYS + PCM990_CF_PLD_REG4)
+#define PCM990_CF5 __PCM990_CF_PLD_REG(PCM990_CF_PLD_PHYS + PCM990_CF_PLD_REG5)
+#define PCM990_CF6 __PCM990_CF_PLD_REG(PCM990_CF_PLD_PHYS + PCM990_CF_PLD_REG6)
+
+/*
+ * Wolfson AC97 Touch
+ */
+#define PCM990_AC97_IRQ_GPIO	10
+#define PCM990_AC97_IRQ		IRQ_GPIO(PCM990_AC97_IRQ_GPIO)
+#define PCM990_AC97_IRQ_EDGE	IRQT_RISING
+
+/*
+ * MMC phyCORE
+ */
+#define PCM990_MMC0_IRQ_GPIO	9
+#define PCM990_MMC0_IRQ		IRQ_GPIO(PCM990_MMC0_IRQ_GPIO)
+#define PCM990_MMC0_IRQ_EDGE	IRQT_FALLING
+
+/*
+ * USB phyCore
+ */
+#define PCM990_USB_OVERCURRENT (88 | GPIO_ALT_FN_1_IN)
+#define PCM990_USB_PWR_EN (89 | GPIO_ALT_FN_2_OUT)
-- 
cgit v1.2.3-59-g8ed1b


From ca4d6cfcee0cb2d25c0eb3b0172ecc6f223133ef Mon Sep 17 00:00:00 2001
From: Richard Purdie <rpurdie@rpsys.net>
Date: Wed, 2 Jan 2008 01:09:54 +0100
Subject: [ARM] 4737/1: Refactor corgi_lcd to improve readability + bugfix

This patch refactors the code in corgi_lcd.c moving it to the board
specific corgi and spitz files where appropriate instead of the
existing ifdef mess which hinders readability.

Fix spitz_get_hsync_len() to call get_hsync_invperiod so pxafb can be
compiled as a module.

The confusing variables which represent the inverse horizintal sync
period are renamed to "invperiod" consistently.

An incorrect comment in corgi_ts.c is also corrected.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/corgi.c            | 183 ++++++++++++++++++++-
 arch/arm/mach-pxa/corgi_lcd.c        | 299 +----------------------------------
 arch/arm/mach-pxa/sharpsl.h          |  19 +--
 arch/arm/mach-pxa/spitz.c            | 106 ++++++++++++-
 drivers/input/touchscreen/corgi_ts.c |   8 +-
 include/asm-arm/arch-pxa/corgi.h     |   1 -
 include/asm-arm/arch-pxa/sharpsl.h   |   2 +-
 include/asm-arm/arch-pxa/spitz.h     |   2 -
 8 files changed, 292 insertions(+), 328 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 2363cc64fe07..7304fdbfbb0f 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -21,6 +21,7 @@
 #include <linux/mmc/host.h>
 #include <linux/pm.h>
 #include <linux/backlight.h>
+#include <video/w100fb.h>
 
 #include <asm/setup.h>
 #include <asm/memory.h>
@@ -140,6 +141,136 @@ struct corgissp_machinfo corgi_ssp_machinfo = {
 };
 
 
+/*
+ * LCD/Framebuffer
+ */
+static void w100_lcdtg_suspend(struct w100fb_par *par)
+{
+	corgi_lcdtg_suspend();
+}
+
+static void w100_lcdtg_init(struct w100fb_par *par)
+{
+	corgi_lcdtg_hw_init(par->xres);
+}
+
+
+static struct w100_tg_info corgi_lcdtg_info = {
+	.change  = w100_lcdtg_init,
+	.suspend = w100_lcdtg_suspend,
+	.resume  = w100_lcdtg_init,
+};
+
+static struct w100_mem_info corgi_fb_mem = {
+	.ext_cntl          = 0x00040003,
+	.sdram_mode_reg    = 0x00650021,
+	.ext_timing_cntl   = 0x10002a4a,
+	.io_cntl           = 0x7ff87012,
+	.size              = 0x1fffff,
+};
+
+static struct w100_gen_regs corgi_fb_regs = {
+	.lcd_format    = 0x00000003,
+	.lcdd_cntl1    = 0x01CC0000,
+	.lcdd_cntl2    = 0x0003FFFF,
+	.genlcd_cntl1  = 0x00FFFF0D,
+	.genlcd_cntl2  = 0x003F3003,
+	.genlcd_cntl3  = 0x000102aa,
+};
+
+static struct w100_gpio_regs corgi_fb_gpio = {
+	.init_data1   = 0x000000bf,
+	.init_data2   = 0x00000000,
+	.gpio_dir1    = 0x00000000,
+	.gpio_oe1     = 0x03c0feff,
+	.gpio_dir2    = 0x00000000,
+	.gpio_oe2     = 0x00000000,
+};
+
+static struct w100_mode corgi_fb_modes[] = {
+{
+	.xres            = 480,
+	.yres            = 640,
+	.left_margin     = 0x56,
+	.right_margin    = 0x55,
+	.upper_margin    = 0x03,
+	.lower_margin    = 0x00,
+	.crtc_ss         = 0x82360056,
+	.crtc_ls         = 0xA0280000,
+	.crtc_gs         = 0x80280028,
+	.crtc_vpos_gs    = 0x02830002,
+	.crtc_rev        = 0x00400008,
+	.crtc_dclk       = 0xA0000000,
+	.crtc_gclk       = 0x8015010F,
+	.crtc_goe        = 0x80100110,
+	.crtc_ps1_active = 0x41060010,
+	.pll_freq        = 75,
+	.fast_pll_freq   = 100,
+	.sysclk_src      = CLK_SRC_PLL,
+	.sysclk_divider  = 0,
+	.pixclk_src      = CLK_SRC_PLL,
+	.pixclk_divider  = 2,
+	.pixclk_divider_rotated = 6,
+},{
+	.xres            = 240,
+	.yres            = 320,
+	.left_margin     = 0x27,
+	.right_margin    = 0x2e,
+	.upper_margin    = 0x01,
+	.lower_margin    = 0x00,
+	.crtc_ss         = 0x81170027,
+	.crtc_ls         = 0xA0140000,
+	.crtc_gs         = 0xC0140014,
+	.crtc_vpos_gs    = 0x00010141,
+	.crtc_rev        = 0x00400008,
+	.crtc_dclk       = 0xA0000000,
+	.crtc_gclk       = 0x8015010F,
+	.crtc_goe        = 0x80100110,
+	.crtc_ps1_active = 0x41060010,
+	.pll_freq        = 0,
+	.fast_pll_freq   = 0,
+	.sysclk_src      = CLK_SRC_XTAL,
+	.sysclk_divider  = 0,
+	.pixclk_src      = CLK_SRC_XTAL,
+	.pixclk_divider  = 1,
+	.pixclk_divider_rotated = 1,
+},
+
+};
+
+static struct w100fb_mach_info corgi_fb_info = {
+	.tg         = &corgi_lcdtg_info,
+	.init_mode  = INIT_MODE_ROTATED,
+	.mem        = &corgi_fb_mem,
+	.regs       = &corgi_fb_regs,
+	.modelist   = &corgi_fb_modes[0],
+	.num_modes  = 2,
+	.gpio       = &corgi_fb_gpio,
+	.xtal_freq  = 12500000,
+	.xtal_dbl   = 0,
+};
+
+static struct resource corgi_fb_resources[] = {
+	[0] = {
+		.start   = 0x08000000,
+		.end     = 0x08ffffff,
+		.flags   = IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device corgifb_device = {
+	.name           = "w100fb",
+	.id             = -1,
+	.num_resources	= ARRAY_SIZE(corgi_fb_resources),
+	.resource	= corgi_fb_resources,
+	.dev            = {
+		.platform_data = &corgi_fb_info,
+		.parent = &corgissp_device.dev,
+	},
+
+};
+
+
 /*
  * Corgi Backlight Device
  */
@@ -154,6 +285,21 @@ static void corgi_bl_kick_battery(void)
 	}
 }
 
+static void corgi_bl_set_intensity(int intensity)
+{
+	if (intensity > 0x10)
+		intensity += 0x10;
+
+	/* Bits 0-4 are accessed via the SSP interface */
+	corgi_ssp_blduty_set(intensity & 0x1f);
+
+	/* Bit 5 is via SCOOP */
+	if (intensity & 0x0020)
+		set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
+	else
+		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
+}
+
 static struct generic_bl_info corgi_bl_machinfo = {
 	.name = "corgi-bl",
 	.max_intensity = 0x2f,
@@ -190,9 +336,40 @@ static struct platform_device corgiled_device = {
 	.id		= -1,
 };
 
+
 /*
  * Corgi Touch Screen Device
  */
+static unsigned long (*get_hsync_invperiod)(struct device *dev);
+
+static void inline sharpsl_wait_sync(int gpio)
+{
+	while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
+	while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
+}
+
+static unsigned long corgi_get_hsync_invperiod(void)
+{
+	if (!get_hsync_invperiod)
+		get_hsync_invperiod = symbol_get(w100fb_get_hsynclen);
+	if (!get_hsync_invperiod)
+		return 0;
+
+	return get_hsync_invperiod(&corgifb_device.dev);
+}
+
+static void corgi_put_hsync(void)
+{
+	if (get_hsync_invperiod)
+		symbol_put(w100fb_get_hsynclen);
+	get_hsync_invperiod = NULL;
+}
+
+static void corgi_wait_hsync(void)
+{
+	sharpsl_wait_sync(CORGI_GPIO_HSYNC);
+}
+
 static struct resource corgits_resources[] = {
 	[0] = {
 		.start		= CORGI_IRQ_GPIO_TP_INT,
@@ -202,9 +379,9 @@ static struct resource corgits_resources[] = {
 };
 
 static struct corgits_machinfo  corgi_ts_machinfo = {
-	.get_hsync_len   = corgi_get_hsync_len,
-	.put_hsync       = corgi_put_hsync,
-	.wait_hsync      = corgi_wait_hsync,
+	.get_hsync_invperiod = corgi_get_hsync_invperiod,
+	.put_hsync           = corgi_put_hsync,
+	.wait_hsync          = corgi_wait_hsync,
 };
 
 static struct platform_device corgits_device = {
diff --git a/arch/arm/mach-pxa/corgi_lcd.c b/arch/arm/mach-pxa/corgi_lcd.c
index 365b9435f748..9328df37afd1 100644
--- a/arch/arm/mach-pxa/corgi_lcd.c
+++ b/arch/arm/mach-pxa/corgi_lcd.c
@@ -173,7 +173,7 @@ static void lcdtg_set_phadadj(int mode)
 
 static int lcd_inited;
 
-static void lcdtg_hw_init(int mode)
+void corgi_lcdtg_hw_init(int mode)
 {
 	if (!lcd_inited) {
 		int comadj;
@@ -254,7 +254,7 @@ static void lcdtg_hw_init(int mode)
 	}
 }
 
-static void lcdtg_suspend(void)
+void corgi_lcdtg_suspend(void)
 {
 	/* 60Hz x 2 frame = 16.7msec x 2 = 33.4 msec */
 	mdelay(34);
@@ -288,298 +288,3 @@ static void lcdtg_suspend(void)
 	lcd_inited = 0;
 }
 
-
-/*
- * Corgi w100 Frame Buffer Device
- */
-#ifdef CONFIG_PXA_SHARP_C7xx
-
-#include <video/w100fb.h>
-
-static void w100_lcdtg_suspend(struct w100fb_par *par)
-{
-	lcdtg_suspend();
-}
-
-static void w100_lcdtg_init(struct w100fb_par *par)
-{
-	lcdtg_hw_init(par->xres);
-}
-
-
-static struct w100_tg_info corgi_lcdtg_info = {
-	.change  = w100_lcdtg_init,
-	.suspend = w100_lcdtg_suspend,
-	.resume  = w100_lcdtg_init,
-};
-
-static struct w100_mem_info corgi_fb_mem = {
-	.ext_cntl          = 0x00040003,
-	.sdram_mode_reg    = 0x00650021,
-	.ext_timing_cntl   = 0x10002a4a,
-	.io_cntl           = 0x7ff87012,
-	.size              = 0x1fffff,
-};
-
-static struct w100_gen_regs corgi_fb_regs = {
-	.lcd_format    = 0x00000003,
-	.lcdd_cntl1    = 0x01CC0000,
-	.lcdd_cntl2    = 0x0003FFFF,
-	.genlcd_cntl1  = 0x00FFFF0D,
-	.genlcd_cntl2  = 0x003F3003,
-	.genlcd_cntl3  = 0x000102aa,
-};
-
-static struct w100_gpio_regs corgi_fb_gpio = {
-	.init_data1   = 0x000000bf,
-	.init_data2   = 0x00000000,
-	.gpio_dir1    = 0x00000000,
-	.gpio_oe1     = 0x03c0feff,
-	.gpio_dir2    = 0x00000000,
-	.gpio_oe2     = 0x00000000,
-};
-
-static struct w100_mode corgi_fb_modes[] = {
-{
-	.xres            = 480,
-	.yres            = 640,
-	.left_margin     = 0x56,
-	.right_margin    = 0x55,
-	.upper_margin    = 0x03,
-	.lower_margin    = 0x00,
-	.crtc_ss         = 0x82360056,
-	.crtc_ls         = 0xA0280000,
-	.crtc_gs         = 0x80280028,
-	.crtc_vpos_gs    = 0x02830002,
-	.crtc_rev        = 0x00400008,
-	.crtc_dclk       = 0xA0000000,
-	.crtc_gclk       = 0x8015010F,
-	.crtc_goe        = 0x80100110,
-	.crtc_ps1_active = 0x41060010,
-	.pll_freq        = 75,
-	.fast_pll_freq   = 100,
-	.sysclk_src      = CLK_SRC_PLL,
-	.sysclk_divider  = 0,
-	.pixclk_src      = CLK_SRC_PLL,
-	.pixclk_divider  = 2,
-	.pixclk_divider_rotated = 6,
-},{
-	.xres            = 240,
-	.yres            = 320,
-	.left_margin     = 0x27,
-	.right_margin    = 0x2e,
-	.upper_margin    = 0x01,
-	.lower_margin    = 0x00,
-	.crtc_ss         = 0x81170027,
-	.crtc_ls         = 0xA0140000,
-	.crtc_gs         = 0xC0140014,
-	.crtc_vpos_gs    = 0x00010141,
-	.crtc_rev        = 0x00400008,
-	.crtc_dclk       = 0xA0000000,
-	.crtc_gclk       = 0x8015010F,
-	.crtc_goe        = 0x80100110,
-	.crtc_ps1_active = 0x41060010,
-	.pll_freq        = 0,
-	.fast_pll_freq   = 0,
-	.sysclk_src      = CLK_SRC_XTAL,
-	.sysclk_divider  = 0,
-	.pixclk_src      = CLK_SRC_XTAL,
-	.pixclk_divider  = 1,
-	.pixclk_divider_rotated = 1,
-},
-
-};
-
-static struct w100fb_mach_info corgi_fb_info = {
-	.tg         = &corgi_lcdtg_info,
-	.init_mode  = INIT_MODE_ROTATED,
-	.mem        = &corgi_fb_mem,
-	.regs       = &corgi_fb_regs,
-	.modelist   = &corgi_fb_modes[0],
-	.num_modes  = 2,
-	.gpio       = &corgi_fb_gpio,
-	.xtal_freq  = 12500000,
-	.xtal_dbl   = 0,
-};
-
-static struct resource corgi_fb_resources[] = {
-	[0] = {
-		.start   = 0x08000000,
-		.end     = 0x08ffffff,
-		.flags   = IORESOURCE_MEM,
-	},
-};
-
-struct platform_device corgifb_device = {
-	.name           = "w100fb",
-	.id             = -1,
-	.num_resources	= ARRAY_SIZE(corgi_fb_resources),
-	.resource	= corgi_fb_resources,
-	.dev            = {
- 		.platform_data = &corgi_fb_info,
- 		.parent = &corgissp_device.dev,
-	},
-
-};
-#endif
-
-
-/*
- * Spitz PXA Frame Buffer Device
- */
-#ifdef CONFIG_PXA_SHARP_Cxx00
-
-#include <asm/arch/pxafb.h>
-
-void spitz_lcd_power(int on, struct fb_var_screeninfo *var)
-{
-	if (on)
-		lcdtg_hw_init(var->xres);
-	else
-		lcdtg_suspend();
-}
-
-#endif
-
-
-/*
- * Corgi/Spitz Touchscreen to LCD interface
- */
-static unsigned long (*get_hsync_time)(struct device *dev);
-
-static void inline sharpsl_wait_sync(int gpio)
-{
-	while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
-	while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
-}
-
-#ifdef CONFIG_PXA_SHARP_C7xx
-unsigned long corgi_get_hsync_len(void)
-{
-	if (!get_hsync_time)
-		get_hsync_time = symbol_get(w100fb_get_hsynclen);
-	if (!get_hsync_time)
-		return 0;
-
-	return get_hsync_time(&corgifb_device.dev);
-}
-
-void corgi_put_hsync(void)
-{
-	if (get_hsync_time)
-		symbol_put(w100fb_get_hsynclen);
-	get_hsync_time = NULL;
-}
-
-void corgi_wait_hsync(void)
-{
-	sharpsl_wait_sync(CORGI_GPIO_HSYNC);
-}
-#endif
-
-#ifdef CONFIG_PXA_SHARP_Cxx00
-static struct device *spitz_pxafb_dev;
-
-static int is_pxafb_device(struct device * dev, void * data)
-{
-	struct platform_device *pdev = container_of(dev, struct platform_device, dev);
-
-	return (strncmp(pdev->name, "pxa2xx-fb", 9) == 0);
-}
-
-unsigned long spitz_get_hsync_len(void)
-{
-#ifdef CONFIG_FB_PXA
-	if (!spitz_pxafb_dev) {
-		spitz_pxafb_dev = bus_find_device(&platform_bus_type, NULL, NULL, is_pxafb_device);
-		if (!spitz_pxafb_dev)
-			return 0;
-	}
-	if (!get_hsync_time)
-		get_hsync_time = symbol_get(pxafb_get_hsync_time);
-	if (!get_hsync_time)
-#endif
-		return 0;
-
-	return pxafb_get_hsync_time(spitz_pxafb_dev);
-}
-
-void spitz_put_hsync(void)
-{
-	put_device(spitz_pxafb_dev);
-	if (get_hsync_time)
-		symbol_put(pxafb_get_hsync_time);
-	spitz_pxafb_dev = NULL;
-	get_hsync_time = NULL;
-}
-
-void spitz_wait_hsync(void)
-{
-	sharpsl_wait_sync(SPITZ_GPIO_HSYNC);
-}
-#endif
-
-/*
- * Corgi/Spitz Backlight Power
- */
-#ifdef CONFIG_PXA_SHARP_C7xx
-void corgi_bl_set_intensity(int intensity)
-{
-	if (intensity > 0x10)
-		intensity += 0x10;
-
-	/* Bits 0-4 are accessed via the SSP interface */
-	corgi_ssp_blduty_set(intensity & 0x1f);
-
-	/* Bit 5 is via SCOOP */
-	if (intensity & 0x0020)
-		set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
-	else
-		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
-}
-#endif
-
-
-#if defined(CONFIG_MACH_SPITZ) || defined(CONFIG_MACH_BORZOI)
-void spitz_bl_set_intensity(int intensity)
-{
-	if (intensity > 0x10)
-		intensity += 0x10;
-
-	/* Bits 0-4 are accessed via the SSP interface */
-	corgi_ssp_blduty_set(intensity & 0x1f);
-
-	/* Bit 5 is via SCOOP */
-	if (intensity & 0x0020)
-		reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
-	else
-		set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
-
-	if (intensity)
-		set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
-	else
-		reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
-}
-#endif
-
-#ifdef CONFIG_MACH_AKITA
-void akita_bl_set_intensity(int intensity)
-{
-	if (intensity > 0x10)
-		intensity += 0x10;
-
-	/* Bits 0-4 are accessed via the SSP interface */
-	corgi_ssp_blduty_set(intensity & 0x1f);
-
-	/* Bit 5 is via IO-Expander */
-	if (intensity & 0x0020)
-		akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
-	else
-		akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
-
-	if (intensity)
-		akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
-	else
-		akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
-}
-#endif
diff --git a/arch/arm/mach-pxa/sharpsl.h b/arch/arm/mach-pxa/sharpsl.h
index da4769caaf72..047909a76651 100644
--- a/arch/arm/mach-pxa/sharpsl.h
+++ b/arch/arm/mach-pxa/sharpsl.h
@@ -26,28 +26,15 @@ void corgi_ssp_set_machinfo(struct corgissp_machinfo *machinfo);
 
 
 /*
- * SharpSL Backlight
+ * SharpSL/Corgi LCD Driver
  */
-void corgi_bl_set_intensity(int intensity);
-void spitz_bl_set_intensity(int intensity);
-void akita_bl_set_intensity(int intensity);
-
-
-/*
- * SharpSL Touchscreen Driver
- */
-unsigned long corgi_get_hsync_len(void);
-unsigned long spitz_get_hsync_len(void);
-void corgi_put_hsync(void);
-void spitz_put_hsync(void);
-void corgi_wait_hsync(void);
-void spitz_wait_hsync(void);
+void corgi_lcdtg_suspend(void);
+void corgi_lcdtg_hw_init(int mode);
 
 
 /*
  * SharpSL Battery/PM Driver
  */
-
 #define READ_GPIO_BIT(x)    (GPLR(x) & GPIO_bit(x))
 
 /* MAX1111 Channel Definitions */
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 2d78199d24af..bb4b65d352c9 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -271,6 +271,55 @@ static struct platform_device spitzled_device = {
 /*
  * Spitz Touch Screen Device
  */
+
+static unsigned long (*get_hsync_invperiod)(struct device *dev);
+
+static void inline sharpsl_wait_sync(int gpio)
+{
+	while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
+	while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
+}
+
+static struct device *spitz_pxafb_dev;
+
+static int is_pxafb_device(struct device * dev, void * data)
+{
+	struct platform_device *pdev = container_of(dev, struct platform_device, dev);
+
+	return (strncmp(pdev->name, "pxa2xx-fb", 9) == 0);
+}
+
+static unsigned long spitz_get_hsync_invperiod(void)
+{
+#ifdef CONFIG_FB_PXA
+	if (!spitz_pxafb_dev) {
+		spitz_pxafb_dev = bus_find_device(&platform_bus_type, NULL, NULL, is_pxafb_device);
+		if (!spitz_pxafb_dev)
+			return 0;
+	}
+	if (!get_hsync_invperiod)
+		get_hsync_invperiod = symbol_get(pxafb_get_hsync_time);
+	if (!get_hsync_invperiod)
+#endif
+		return 0;
+
+	return get_hsync_invperiod(spitz_pxafb_dev);
+}
+
+static void spitz_put_hsync(void)
+{
+	put_device(spitz_pxafb_dev);
+	if (get_hsync_invperiod)
+		symbol_put(pxafb_get_hsync_time);
+	spitz_pxafb_dev = NULL;
+	get_hsync_invperiod = NULL;
+}
+
+static void spitz_wait_hsync(void)
+{
+	sharpsl_wait_sync(SPITZ_GPIO_HSYNC);
+}
+
 static struct resource spitzts_resources[] = {
 	[0] = {
 		.start		= SPITZ_IRQ_GPIO_TP_INT,
@@ -280,9 +329,9 @@ static struct resource spitzts_resources[] = {
 };
 
 static struct corgits_machinfo  spitz_ts_machinfo = {
-	.get_hsync_len   = spitz_get_hsync_len,
-	.put_hsync       = spitz_put_hsync,
-	.wait_hsync      = spitz_wait_hsync,
+	.get_hsync_invperiod = spitz_get_hsync_invperiod,
+	.put_hsync           = spitz_put_hsync,
+	.wait_hsync          = spitz_wait_hsync,
 };
 
 static struct platform_device spitzts_device = {
@@ -423,6 +472,14 @@ static struct pxaficp_platform_data spitz_ficp_platform_data = {
  * Spitz PXA Framebuffer
  */
 
+static void spitz_lcd_power(int on, struct fb_var_screeninfo *var)
+{
+	if (on)
+		corgi_lcdtg_hw_init(var->xres);
+	else
+		corgi_lcdtg_suspend();
+}
+
 static struct pxafb_mode_info spitz_pxafb_modes[] = {
 {
 	.pixclock       = 19231,
@@ -520,6 +577,27 @@ static void __init common_init(void)
 	set_pxa_fb_info(&spitz_pxafb_info);
 }
 
+#if defined(CONFIG_MACH_SPITZ) || defined(CONFIG_MACH_BORZOI)
+static void spitz_bl_set_intensity(int intensity)
+{
+	if (intensity > 0x10)
+		intensity += 0x10;
+
+	/* Bits 0-4 are accessed via the SSP interface */
+	corgi_ssp_blduty_set(intensity & 0x1f);
+
+	/* Bit 5 is via SCOOP */
+	if (intensity & 0x0020)
+		reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
+	else
+		set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
+
+	if (intensity)
+		set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
+	else
+		reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
+}
+
 static void __init spitz_init(void)
 {
 	platform_scoop_config = &spitz_pcmcia_config;
@@ -530,6 +608,7 @@ static void __init spitz_init(void)
 
 	platform_device_register(&spitzscoop2_device);
 }
+#endif
 
 #ifdef CONFIG_MACH_AKITA
 /*
@@ -542,6 +621,26 @@ struct platform_device akitaioexp_device = {
 
 EXPORT_SYMBOL_GPL(akitaioexp_device);
 
+static void akita_bl_set_intensity(int intensity)
+{
+	if (intensity > 0x10)
+		intensity += 0x10;
+
+	/* Bits 0-4 are accessed via the SSP interface */
+	corgi_ssp_blduty_set(intensity & 0x1f);
+
+	/* Bit 5 is via IO-Expander */
+	if (intensity & 0x0020)
+		akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
+	else
+		akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
+
+	if (intensity)
+		akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
+	else
+		akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
+}
+
 static void __init akita_init(void)
 {
 	spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
@@ -558,7 +657,6 @@ static void __init akita_init(void)
 }
 #endif
 
-
 static void __init fixup_spitz(struct machine_desc *desc,
 		struct tag *tags, char **cmdline, struct meminfo *mi)
 {
diff --git a/drivers/input/touchscreen/corgi_ts.c b/drivers/input/touchscreen/corgi_ts.c
index b1b2e07bf080..99d92f5c93d6 100644
--- a/drivers/input/touchscreen/corgi_ts.c
+++ b/drivers/input/touchscreen/corgi_ts.c
@@ -74,10 +74,10 @@ extern unsigned int get_clk_frequency_khz(int info);
 
 static unsigned long calc_waittime(struct corgi_ts *corgi_ts)
 {
-	unsigned long hsync_len = corgi_ts->machinfo->get_hsync_len();
+	unsigned long hsync_invperiod = corgi_ts->machinfo->get_hsync_invperiod();
 
-	if (hsync_len)
-		return get_clk_frequency_khz(0)*1000/hsync_len;
+	if (hsync_invperiod)
+		return get_clk_frequency_khz(0)*1000/hsync_invperiod;
 	else
 		return 0;
 }
@@ -114,7 +114,7 @@ static int sync_receive_data_send_cmd(struct corgi_ts *corgi_ts, int doRecive, i
 			if (timer2-timer1 > wait_time) {
 				/* too slow - timeout, try again */
 				corgi_ts->machinfo->wait_hsync();
-				/* get OSCR */
+				/* get CCNT */
 				CCNT(timer1);
 				/* Wait after HSync */
 				CCNT(timer2);
diff --git a/include/asm-arm/arch-pxa/corgi.h b/include/asm-arm/arch-pxa/corgi.h
index e554caa0d18b..bf856503baf6 100644
--- a/include/asm-arm/arch-pxa/corgi.h
+++ b/include/asm-arm/arch-pxa/corgi.h
@@ -104,7 +104,6 @@
  */
 extern struct platform_device corgiscoop_device;
 extern struct platform_device corgissp_device;
-extern struct platform_device corgifb_device;
 
 #endif /* __ASM_ARCH_CORGI_H  */
 
diff --git a/include/asm-arm/arch-pxa/sharpsl.h b/include/asm-arm/arch-pxa/sharpsl.h
index 2b0fe773213a..3b1d4a72d4d1 100644
--- a/include/asm-arm/arch-pxa/sharpsl.h
+++ b/include/asm-arm/arch-pxa/sharpsl.h
@@ -16,7 +16,7 @@ int corgi_ssp_max1111_get(unsigned long data);
  */
 
 struct corgits_machinfo {
-	unsigned long (*get_hsync_len)(void);
+	unsigned long (*get_hsync_invperiod)(void);
 	void (*put_hsync)(void);
 	void (*wait_hsync)(void);
 };
diff --git a/include/asm-arm/arch-pxa/spitz.h b/include/asm-arm/arch-pxa/spitz.h
index 4953dd324d4d..bd14365f7ed5 100644
--- a/include/asm-arm/arch-pxa/spitz.h
+++ b/include/asm-arm/arch-pxa/spitz.h
@@ -156,5 +156,3 @@ extern struct platform_device spitzscoop_device;
 extern struct platform_device spitzscoop2_device;
 extern struct platform_device spitzssp_device;
 extern struct sharpsl_charger_machinfo spitz_pm_machinfo;
-
-extern void spitz_lcd_power(int on, struct fb_var_screeninfo *var);
-- 
cgit v1.2.3-59-g8ed1b


From 2687bd38573ff6f10d13f60c5c3576cce9cf260d Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Wed, 23 Jan 2008 14:05:58 +0000
Subject: [ARM] pxa: fix mci_init functions returning -1

Fix all those PXA mci_init functions which return -1 rather than
propagating the error code to the higher levels.  Remove the silly
set_irq_type() calls as well - use the flags for request_irq()
instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/cm-x270.c   |  7 ++-----
 arch/arm/mach-pxa/corgi.c     |  6 ++----
 arch/arm/mach-pxa/mainstone.c |  6 ++----
 arch/arm/mach-pxa/poodle.c    |  6 ++----
 arch/arm/mach-pxa/spitz.c     |  6 ++----
 arch/arm/mach-pxa/tosa.c      | 11 ++++-------
 arch/arm/mach-pxa/trizeps4.c  |  7 +++----
 7 files changed, 17 insertions(+), 32 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/cm-x270.c b/arch/arm/mach-pxa/cm-x270.c
index a16349272f54..28cfd71c032d 100644
--- a/arch/arm/mach-pxa/cm-x270.c
+++ b/arch/arm/mach-pxa/cm-x270.c
@@ -487,18 +487,15 @@ static int cmx270_mci_init(struct device *dev,
 
 	/* card detect IRQ on GPIO 83 */
 	pxa_gpio_mode(IRQ_TO_GPIO(CMX270_MMC_IRQ));
-	set_irq_type(CMX270_MMC_IRQ, IRQT_FALLING);
 
 	err = request_irq(CMX270_MMC_IRQ, cmx270_detect_int,
 			  IRQF_DISABLED | IRQF_TRIGGER_FALLING,
 			  "MMC card detect", data);
-	if (err) {
+	if (err)
 		printk(KERN_ERR "cmx270_mci_init: MMC/SD: can't"
 		       " request MMC card detect IRQ\n");
-		return -1;
-	}
 
-	return 0;
+	return err;
 }
 
 static void cmx270_mci_setpower(struct device *dev, unsigned int vdd)
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 7304fdbfbb0f..9292576b83b3 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -419,12 +419,10 @@ static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, vo
 	err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
 			  IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 			  "MMC card detect", data);
-	if (err) {
+	if (err)
 		printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
-		return -1;
-	}
 
-	return 0;
+	return err;
 }
 
 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index ac78dbd6a634..345c3deeb02e 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -379,12 +379,10 @@ static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_in
 
 	err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, IRQF_DISABLED,
 			     "MMC card detect", data);
-	if (err) {
+	if (err)
 		printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
-		return -1;
-	}
 
-	return 0;
+	return err;
 }
 
 static void mainstone_mci_setpower(struct device *dev, unsigned int vdd)
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index 655668d4d0e9..dd54496083cb 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -215,12 +215,10 @@ static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int,
 	err = request_irq(POODLE_IRQ_GPIO_nSD_DETECT, poodle_detect_int,
 			  IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 			  "MMC card detect", data);
-	if (err) {
+	if (err)
 		printk(KERN_ERR "poodle_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
-		return -1;
-	}
 
-	return 0;
+	return err;
 }
 
 static void poodle_mci_setpower(struct device *dev, unsigned int vdd)
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index bb4b65d352c9..5078edeadf96 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -374,12 +374,10 @@ static int spitz_mci_init(struct device *dev, irq_handler_t spitz_detect_int, vo
 	err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int,
 			  IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 			  "MMC card detect", data);
-	if (err) {
+	if (err)
 		printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
-		return -1;
-	}
 
-	return 0;
+	return err;
 }
 
 static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 240fd042083d..1919756900f4 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -184,16 +184,13 @@ static int tosa_mci_init(struct device *dev, irq_handler_t tosa_detect_int, void
 
 	tosa_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 
-	err = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int, IRQF_DISABLED,
+	err = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int,
+			  IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 				"MMC/SD card detect", data);
-	if (err) {
+	if (err)
 		printk(KERN_ERR "tosa_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
-		return -1;
-	}
-
-	set_irq_type(TOSA_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
 
-	return 0;
+	return err;
 }
 
 static void tosa_mci_setpower(struct device *dev, unsigned int vdd)
diff --git a/arch/arm/mach-pxa/trizeps4.c b/arch/arm/mach-pxa/trizeps4.c
index e4ba43bdf85d..853fc9433750 100644
--- a/arch/arm/mach-pxa/trizeps4.c
+++ b/arch/arm/mach-pxa/trizeps4.c
@@ -296,11 +296,10 @@ static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int, v
 	err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
 			  IRQF_DISABLED | IRQF_TRIGGER_RISING,
 			  "MMC card detect", data);
-	if (err) {
+	if (err)
 		printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
-		return -1;
-	}
-	return 0;
+
+	return err;
 }
 
 static void trizeps4_mci_exit(struct device *dev, void *data)
-- 
cgit v1.2.3-59-g8ed1b


From 4e4fc05a2b6e7bd2e0facd96e0c18dceb34d9349 Mon Sep 17 00:00:00 2001
From: Daniel Mack <daniel@caiaq.org>
Date: Wed, 23 Jan 2008 14:54:50 +0100
Subject: [ARM] 4762/1: Basic support for Toradex Colibri module

This patch adds support for Toradex' PXA27x based Colibri module.
It's kept as simple as possible to only provide basic functionality.
A default config is also included.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/configs/colibri_defconfig | 1481 ++++++++++++++++++++++++++++++++++++
 arch/arm/mach-pxa/Kconfig          |    4 +
 arch/arm/mach-pxa/Makefile         |    1 +
 arch/arm/mach-pxa/colibri.c        |  134 ++++
 drivers/net/dm9000.c               |    3 +-
 include/asm-arm/arch-pxa/colibri.h |   19 +
 6 files changed, 1641 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/configs/colibri_defconfig
 create mode 100644 arch/arm/mach-pxa/colibri.c
 create mode 100644 include/asm-arm/arch-pxa/colibri.h

(limited to 'arch')

diff --git a/arch/arm/configs/colibri_defconfig b/arch/arm/configs/colibri_defconfig
new file mode 100644
index 000000000000..c3e3418ed4fe
--- /dev/null
+++ b/arch/arm/configs/colibri_defconfig
@@ -0,0 +1,1481 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.24-rc3
+# Mon Dec  3 13:36:09 2007
+#
+CONFIG_ARM=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_MMU=y
+# CONFIG_NO_IOPORT is not set
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_ZONE_DMA=y
+CONFIG_ARCH_MTD_XIP=y
+CONFIG_VECTORS_BASE=0xffff0000
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOCK_KERNEL=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SWAP=y
+CONFIG_SYSVIPC=y
+CONFIG_SYSVIPC_SYSCTL=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+# CONFIG_AUDIT is not set
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+# CONFIG_FAIR_CGROUP_SCHED is not set
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+CONFIG_UID16=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_ALL is not set
+CONFIG_KALLSYMS_EXTRA_PASS=y
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_MODULE_SRCVERSION_ALL=y
+CONFIG_KMOD=y
+CONFIG_BLOCK=y
+CONFIG_LBD=y
+# CONFIG_BLK_DEV_IO_TRACE is not set
+CONFIG_LSF=y
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+CONFIG_DEFAULT_AS=y
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="anticipatory"
+
+#
+# System Type
+#
+# CONFIG_ARCH_AAEC2000 is not set
+# CONFIG_ARCH_INTEGRATOR is not set
+# CONFIG_ARCH_REALVIEW is not set
+# CONFIG_ARCH_VERSATILE is not set
+# CONFIG_ARCH_AT91 is not set
+# CONFIG_ARCH_CLPS7500 is not set
+# CONFIG_ARCH_CLPS711X is not set
+# CONFIG_ARCH_CO285 is not set
+# CONFIG_ARCH_EBSA110 is not set
+# CONFIG_ARCH_EP93XX is not set
+# CONFIG_ARCH_FOOTBRIDGE is not set
+# CONFIG_ARCH_NETX is not set
+# CONFIG_ARCH_H720X is not set
+# CONFIG_ARCH_IMX is not set
+# CONFIG_ARCH_IOP13XX is not set
+# CONFIG_ARCH_IOP32X is not set
+# CONFIG_ARCH_IOP33X is not set
+# CONFIG_ARCH_IXP23XX is not set
+# CONFIG_ARCH_IXP2000 is not set
+# CONFIG_ARCH_IXP4XX is not set
+# CONFIG_ARCH_L7200 is not set
+# CONFIG_ARCH_KS8695 is not set
+# CONFIG_ARCH_NS9XXX is not set
+# CONFIG_ARCH_MXC is not set
+# CONFIG_ARCH_PNX4008 is not set
+CONFIG_ARCH_PXA=y
+# CONFIG_ARCH_RPC is not set
+# CONFIG_ARCH_SA1100 is not set
+# CONFIG_ARCH_S3C2410 is not set
+# CONFIG_ARCH_SHARK is not set
+# CONFIG_ARCH_LH7A40X is not set
+# CONFIG_ARCH_DAVINCI is not set
+# CONFIG_ARCH_OMAP is not set
+
+#
+# Intel PXA2xx/PXA3xx Implementations
+#
+# CONFIG_ARCH_LUBBOCK is not set
+# CONFIG_MACH_LOGICPD_PXA270 is not set
+# CONFIG_MACH_MAINSTONE is not set
+# CONFIG_ARCH_PXA_IDP is not set
+# CONFIG_PXA_SHARPSL is not set
+# CONFIG_MACH_TRIZEPS4 is not set
+# CONFIG_MACH_EM_X270 is not set
+CONFIG_MACH_COLIBRI=y
+# CONFIG_MACH_ZYLONITE is not set
+# CONFIG_MACH_ARMCORE is not set
+CONFIG_PXA27x=y
+
+#
+# Boot options
+#
+
+#
+# Power management
+#
+
+#
+# Processor Type
+#
+CONFIG_CPU_32=y
+CONFIG_CPU_XSCALE=y
+CONFIG_CPU_32v5=y
+CONFIG_CPU_ABRT_EV5T=y
+CONFIG_CPU_CACHE_VIVT=y
+CONFIG_CPU_TLB_V4WBI=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+
+#
+# Processor Features
+#
+CONFIG_ARM_THUMB=y
+# CONFIG_CPU_DCACHE_DISABLE is not set
+# CONFIG_OUTER_CACHE is not set
+CONFIG_IWMMXT=y
+CONFIG_XSCALE_PMU=y
+
+#
+# Bus support
+#
+# CONFIG_PCI_SYSCALL is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+# CONFIG_PCCARD is not set
+
+#
+# Kernel Features
+#
+# CONFIG_TICK_ONESHOT is not set
+# CONFIG_NO_HZ is not set
+# CONFIG_HIGH_RES_TIMERS is not set
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+CONFIG_PREEMPT=y
+CONFIG_HZ=100
+CONFIG_AEABI=y
+CONFIG_OABI_COMPAT=y
+# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4096
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_BOUNCE=y
+CONFIG_VIRT_TO_BUS=y
+CONFIG_ALIGNMENT_TRAP=y
+
+#
+# Boot options
+#
+CONFIG_ZBOOT_ROM_TEXT=0
+CONFIG_ZBOOT_ROM_BSS=0
+CONFIG_CMDLINE=""
+# CONFIG_XIP_KERNEL is not set
+# CONFIG_KEXEC is not set
+
+#
+# Floating point emulation
+#
+
+#
+# At least one emulation must be selected
+#
+CONFIG_FPE_NWFPE=y
+# CONFIG_FPE_NWFPE_XP is not set
+# CONFIG_FPE_FASTFPE is not set
+
+#
+# Userspace binary formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Power management options
+#
+CONFIG_PM=y
+# CONFIG_PM_LEGACY is not set
+# CONFIG_PM_DEBUG is not set
+CONFIG_PM_SLEEP=y
+CONFIG_SUSPEND_UP_POSSIBLE=y
+CONFIG_SUSPEND=y
+# CONFIG_APM_EMULATION is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+CONFIG_PACKET_MMAP=y
+CONFIG_UNIX=y
+CONFIG_XFRM=y
+CONFIG_XFRM_USER=m
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+CONFIG_NET_KEY=y
+# CONFIG_NET_KEY_MIGRATE is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
+CONFIG_INET_XFRM_MODE_BEET=y
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IP_VS is not set
+# CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_NETLABEL is not set
+# CONFIG_NETWORK_SECMARK is not set
+CONFIG_NETFILTER=y
+# CONFIG_NETFILTER_DEBUG is not set
+
+#
+# Core Netfilter Configuration
+#
+# CONFIG_NETFILTER_NETLINK is not set
+# CONFIG_NF_CONNTRACK_ENABLED is not set
+# CONFIG_NF_CONNTRACK is not set
+# CONFIG_NETFILTER_XTABLES is not set
+
+#
+# IP: Netfilter Configuration
+#
+CONFIG_IP_NF_QUEUE=m
+# CONFIG_IP_NF_IPTABLES is not set
+# CONFIG_IP_NF_ARPTABLES is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+CONFIG_VLAN_8021Q=m
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+CONFIG_IRDA=m
+
+#
+# IrDA protocols
+#
+CONFIG_IRLAN=m
+CONFIG_IRCOMM=m
+CONFIG_IRDA_ULTRA=y
+
+#
+# IrDA options
+#
+CONFIG_IRDA_CACHE_LAST_LSAP=y
+CONFIG_IRDA_FAST_RR=y
+# CONFIG_IRDA_DEBUG is not set
+
+#
+# Infrared-port device drivers
+#
+
+#
+# SIR device drivers
+#
+CONFIG_IRTTY_SIR=m
+
+#
+# Dongle support
+#
+# CONFIG_DONGLE is not set
+# CONFIG_KINGSUN_DONGLE is not set
+# CONFIG_KSDAZZLE_DONGLE is not set
+# CONFIG_KS959_DONGLE is not set
+
+#
+# Old SIR device drivers
+#
+# CONFIG_IRPORT_SIR is not set
+
+#
+# Old Serial dongle support
+#
+
+#
+# FIR device drivers
+#
+# CONFIG_USB_IRDA is not set
+# CONFIG_SIGMATEL_FIR is not set
+# CONFIG_PXA_FICP is not set
+# CONFIG_MCS_FIR is not set
+CONFIG_BT=m
+CONFIG_BT_L2CAP=m
+CONFIG_BT_SCO=m
+CONFIG_BT_RFCOMM=m
+CONFIG_BT_RFCOMM_TTY=y
+CONFIG_BT_BNEP=m
+CONFIG_BT_BNEP_MC_FILTER=y
+CONFIG_BT_BNEP_PROTO_FILTER=y
+CONFIG_BT_HIDP=m
+
+#
+# Bluetooth device drivers
+#
+# CONFIG_BT_HCIUSB is not set
+# CONFIG_BT_HCIBTUSB is not set
+# CONFIG_BT_HCIBTSDIO is not set
+# CONFIG_BT_HCIUART is not set
+# CONFIG_BT_HCIBCM203X is not set
+# CONFIG_BT_HCIBPA10X is not set
+# CONFIG_BT_HCIBFUSB is not set
+# CONFIG_BT_HCIVHCI is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+CONFIG_CFG80211=y
+CONFIG_NL80211=y
+CONFIG_WIRELESS_EXT=y
+# CONFIG_MAC80211 is not set
+CONFIG_IEEE80211=y
+# CONFIG_IEEE80211_DEBUG is not set
+CONFIG_IEEE80211_CRYPT_WEP=y
+CONFIG_IEEE80211_CRYPT_CCMP=m
+CONFIG_IEEE80211_CRYPT_TKIP=m
+CONFIG_IEEE80211_SOFTMAC=m
+# CONFIG_IEEE80211_SOFTMAC_DEBUG is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+CONFIG_FW_LOADER=y
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+CONFIG_CONNECTOR=y
+CONFIG_PROC_EVENTS=y
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+CONFIG_MTD_CONCAT=y
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+# CONFIG_MTD_CMDLINE_PARTS is not set
+# CONFIG_MTD_AFS_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+CONFIG_MTD_CFI=y
+CONFIG_MTD_JEDECPROBE=y
+CONFIG_MTD_GEN_PROBE=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+# CONFIG_MTD_CFI_NOSWAP is not set
+# CONFIG_MTD_CFI_BE_BYTE_SWAP is not set
+CONFIG_MTD_CFI_LE_BYTE_SWAP=y
+CONFIG_MTD_CFI_GEOMETRY=y
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_OTP is not set
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
+# CONFIG_MTD_CFI_STAA is not set
+CONFIG_MTD_CFI_UTIL=y
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+# CONFIG_MTD_XIP is not set
+
+#
+# Mapping drivers for chip access
+#
+CONFIG_MTD_COMPLEX_MAPPINGS=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_START=0x0
+CONFIG_MTD_PHYSMAP_LEN=0x0
+CONFIG_MTD_PHYSMAP_BANKWIDTH=2
+CONFIG_MTD_PXA2XX=y
+# CONFIG_MTD_ARM_INTEGRATOR is not set
+# CONFIG_MTD_IMPA7 is not set
+# CONFIG_MTD_SHARP_SL is not set
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+CONFIG_MTD_BLOCK2MTD=y
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+CONFIG_MTD_NAND=y
+# CONFIG_MTD_NAND_VERIFY_WRITE is not set
+# CONFIG_MTD_NAND_ECC_SMC is not set
+# CONFIG_MTD_NAND_MUSEUM_IDS is not set
+# CONFIG_MTD_NAND_H1900 is not set
+CONFIG_MTD_NAND_IDS=y
+CONFIG_MTD_NAND_DISKONCHIP=y
+CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADVANCED=y
+CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS=0x4000000
+CONFIG_MTD_NAND_DISKONCHIP_PROBE_HIGH=y
+CONFIG_MTD_NAND_DISKONCHIP_BBTWRITE=y
+# CONFIG_MTD_NAND_SHARPSL is not set
+# CONFIG_MTD_NAND_NANDSIM is not set
+# CONFIG_MTD_NAND_PLATFORM is not set
+# CONFIG_MTD_ALAUDA is not set
+CONFIG_MTD_ONENAND=y
+# CONFIG_MTD_ONENAND_VERIFY_WRITE is not set
+# CONFIG_MTD_ONENAND_GENERIC is not set
+# CONFIG_MTD_ONENAND_OTP is not set
+# CONFIG_MTD_ONENAND_2X_PROGRAM is not set
+# CONFIG_MTD_ONENAND_SIM is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_CRYPTOLOOP=m
+CONFIG_BLK_DEV_NBD=y
+# CONFIG_BLK_DEV_UB is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=8
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_EEPROM_93CX6 is not set
+CONFIG_IDE=y
+CONFIG_IDE_MAX_HWIFS=4
+CONFIG_BLK_DEV_IDE=y
+
+#
+# Please see Documentation/ide.txt for help/info on IDE drives
+#
+# CONFIG_BLK_DEV_IDE_SATA is not set
+CONFIG_BLK_DEV_IDEDISK=y
+CONFIG_IDEDISK_MULTI_MODE=y
+# CONFIG_BLK_DEV_IDECD is not set
+# CONFIG_BLK_DEV_IDETAPE is not set
+# CONFIG_BLK_DEV_IDEFLOPPY is not set
+# CONFIG_IDE_TASK_IOCTL is not set
+CONFIG_IDE_PROC_FS=y
+
+#
+# IDE chipset support/bugfixes
+#
+CONFIG_IDE_GENERIC=y
+# CONFIG_BLK_DEV_PLATFORM is not set
+# CONFIG_IDE_ARM is not set
+# CONFIG_BLK_DEV_IDEDMA is not set
+CONFIG_IDE_ARCH_OBSOLETE_INIT=y
+# CONFIG_BLK_DEV_HD is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+CONFIG_PHYLIB=y
+
+#
+# MII PHY device drivers
+#
+# CONFIG_MARVELL_PHY is not set
+# CONFIG_DAVICOM_PHY is not set
+# CONFIG_QSEMI_PHY is not set
+# CONFIG_LXT_PHY is not set
+# CONFIG_CICADA_PHY is not set
+# CONFIG_VITESSE_PHY is not set
+# CONFIG_SMSC_PHY is not set
+# CONFIG_BROADCOM_PHY is not set
+# CONFIG_ICPLUS_PHY is not set
+# CONFIG_FIXED_PHY is not set
+# CONFIG_MDIO_BITBANG is not set
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+# CONFIG_AX88796 is not set
+# CONFIG_SMC91X is not set
+CONFIG_DM9000=y
+# CONFIG_SMC911X is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+CONFIG_WLAN_80211=y
+# CONFIG_LIBERTAS is not set
+# CONFIG_USB_ZD1201 is not set
+CONFIG_HOSTAP=y
+CONFIG_HOSTAP_FIRMWARE=y
+CONFIG_HOSTAP_FIRMWARE_NVRAM=y
+# CONFIG_ZD1211RW is not set
+
+#
+# USB Network Adapters
+#
+# CONFIG_USB_CATC is not set
+# CONFIG_USB_KAWETH is not set
+# CONFIG_USB_PEGASUS is not set
+# CONFIG_USB_RTL8150 is not set
+# CONFIG_USB_USBNET is not set
+# CONFIG_WAN is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+CONFIG_INPUT_MOUSEDEV=y
+CONFIG_INPUT_MOUSEDEV_PSAUX=y
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=640
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=480
+# CONFIG_INPUT_JOYDEV is not set
+CONFIG_INPUT_EVDEV=y
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+CONFIG_INPUT_KEYBOARD=y
+CONFIG_KEYBOARD_ATKBD=m
+# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_KEYBOARD_LKKBD is not set
+# CONFIG_KEYBOARD_XTKBD is not set
+# CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_KEYBOARD_STOWAWAY is not set
+# CONFIG_KEYBOARD_PXA27x is not set
+# CONFIG_KEYBOARD_GPIO is not set
+CONFIG_INPUT_MOUSE=y
+# CONFIG_MOUSE_PS2 is not set
+CONFIG_MOUSE_SERIAL=m
+# CONFIG_MOUSE_APPLETOUCH is not set
+# CONFIG_MOUSE_VSXXXAA is not set
+# CONFIG_MOUSE_GPIO is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+CONFIG_INPUT_TOUCHSCREEN=y
+# CONFIG_TOUCHSCREEN_FUJITSU is not set
+# CONFIG_TOUCHSCREEN_GUNZE is not set
+# CONFIG_TOUCHSCREEN_ELO is not set
+# CONFIG_TOUCHSCREEN_MTOUCH is not set
+# CONFIG_TOUCHSCREEN_MK712 is not set
+# CONFIG_TOUCHSCREEN_PENMOUNT is not set
+# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
+# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
+CONFIG_TOUCHSCREEN_UCB1400=y
+# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
+CONFIG_INPUT_MISC=y
+# CONFIG_INPUT_ATI_REMOTE is not set
+# CONFIG_INPUT_ATI_REMOTE2 is not set
+# CONFIG_INPUT_KEYSPAN_REMOTE is not set
+# CONFIG_INPUT_POWERMATE is not set
+# CONFIG_INPUT_YEALINK is not set
+CONFIG_INPUT_UINPUT=m
+
+#
+# Hardware I/O ports
+#
+CONFIG_SERIO=y
+CONFIG_SERIO_SERPORT=y
+CONFIG_SERIO_LIBPS2=y
+# CONFIG_SERIO_RAW is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_PXA=y
+CONFIG_SERIAL_PXA_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+CONFIG_HW_RANDOM=y
+# CONFIG_NVRAM is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+CONFIG_I2C=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=y
+
+#
+# I2C Algorithms
+#
+# CONFIG_I2C_ALGOBIT is not set
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALGOPCA is not set
+
+#
+# I2C Hardware Bus support
+#
+# CONFIG_I2C_GPIO is not set
+# CONFIG_I2C_PXA is not set
+# CONFIG_I2C_OCORES is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_TAOS_EVM is not set
+# CONFIG_I2C_STUB is not set
+# CONFIG_I2C_TINY_USB is not set
+
+#
+# Miscellaneous I2C Chip support
+#
+# CONFIG_SENSORS_DS1337 is not set
+# CONFIG_SENSORS_DS1374 is not set
+# CONFIG_DS1682 is not set
+# CONFIG_SENSORS_EEPROM is not set
+# CONFIG_SENSORS_PCF8574 is not set
+# CONFIG_SENSORS_PCA9539 is not set
+# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_MAX6875 is not set
+# CONFIG_SENSORS_TSL2550 is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
+# CONFIG_I2C_DEBUG_CHIP is not set
+
+#
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+CONFIG_HWMON=y
+# CONFIG_HWMON_VID is not set
+# CONFIG_SENSORS_AD7418 is not set
+# CONFIG_SENSORS_ADM1021 is not set
+# CONFIG_SENSORS_ADM1025 is not set
+# CONFIG_SENSORS_ADM1026 is not set
+# CONFIG_SENSORS_ADM1029 is not set
+# CONFIG_SENSORS_ADM1031 is not set
+# CONFIG_SENSORS_ADM9240 is not set
+# CONFIG_SENSORS_ADT7470 is not set
+# CONFIG_SENSORS_ATXP1 is not set
+# CONFIG_SENSORS_DS1621 is not set
+# CONFIG_SENSORS_F71805F is not set
+# CONFIG_SENSORS_F71882FG is not set
+# CONFIG_SENSORS_F75375S is not set
+# CONFIG_SENSORS_GL518SM is not set
+# CONFIG_SENSORS_GL520SM is not set
+# CONFIG_SENSORS_IT87 is not set
+# CONFIG_SENSORS_LM63 is not set
+# CONFIG_SENSORS_LM75 is not set
+# CONFIG_SENSORS_LM77 is not set
+# CONFIG_SENSORS_LM78 is not set
+# CONFIG_SENSORS_LM80 is not set
+# CONFIG_SENSORS_LM83 is not set
+# CONFIG_SENSORS_LM85 is not set
+# CONFIG_SENSORS_LM87 is not set
+# CONFIG_SENSORS_LM90 is not set
+# CONFIG_SENSORS_LM92 is not set
+# CONFIG_SENSORS_LM93 is not set
+# CONFIG_SENSORS_MAX1619 is not set
+# CONFIG_SENSORS_MAX6650 is not set
+# CONFIG_SENSORS_PC87360 is not set
+# CONFIG_SENSORS_PC87427 is not set
+# CONFIG_SENSORS_DME1737 is not set
+# CONFIG_SENSORS_SMSC47M1 is not set
+# CONFIG_SENSORS_SMSC47M192 is not set
+# CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_THMC50 is not set
+# CONFIG_SENSORS_VT1211 is not set
+# CONFIG_SENSORS_W83781D is not set
+# CONFIG_SENSORS_W83791D is not set
+# CONFIG_SENSORS_W83792D is not set
+# CONFIG_SENSORS_W83793 is not set
+# CONFIG_SENSORS_W83L785TS is not set
+# CONFIG_SENSORS_W83627HF is not set
+# CONFIG_SENSORS_W83627EHF is not set
+# CONFIG_HWMON_DEBUG_CHIP is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
+
+#
+# Watchdog Device Drivers
+#
+# CONFIG_SOFT_WATCHDOG is not set
+# CONFIG_SA1100_WATCHDOG is not set
+
+#
+# USB-based Watchdog Cards
+#
+# CONFIG_USBPCWATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+CONFIG_DAB=y
+# CONFIG_USB_DABUSB is not set
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+CONFIG_FB=y
+CONFIG_FIRMWARE_EDID=y
+# CONFIG_FB_DDC is not set
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_SYS_FOPS is not set
+CONFIG_FB_DEFERRED_IO=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+# CONFIG_FB_MODE_HELPERS is not set
+# CONFIG_FB_TILEBLITTING is not set
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_UVESA is not set
+# CONFIG_FB_S1D13XXX is not set
+CONFIG_FB_PXA=y
+# CONFIG_FB_PXA_PARAMETERS is not set
+# CONFIG_FB_MBX is not set
+# CONFIG_FB_VIRTUAL is not set
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+CONFIG_LCD_CLASS_DEVICE=y
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+# CONFIG_BACKLIGHT_CORGI is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Console display driver support
+#
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
+CONFIG_FONTS=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_8x16=y
+# CONFIG_FONT_6x11 is not set
+# CONFIG_FONT_7x14 is not set
+# CONFIG_FONT_PEARL_8x8 is not set
+# CONFIG_FONT_ACORN_8x8 is not set
+# CONFIG_FONT_MINI_4x6 is not set
+# CONFIG_FONT_SUN8x16 is not set
+# CONFIG_FONT_SUN12x22 is not set
+# CONFIG_FONT_10x18 is not set
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_MONO=y
+CONFIG_LOGO_LINUX_VGA16=y
+CONFIG_LOGO_LINUX_CLUT224=y
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+CONFIG_AC97_BUS=y
+CONFIG_HID_SUPPORT=y
+CONFIG_HID=y
+# CONFIG_HID_DEBUG is not set
+# CONFIG_HIDRAW is not set
+
+#
+# USB Input Devices
+#
+# CONFIG_USB_HID is not set
+
+#
+# USB HID Boot Protocol drivers
+#
+# CONFIG_USB_KBD is not set
+# CONFIG_USB_MOUSE is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+CONFIG_USB=y
+# CONFIG_USB_DEBUG is not set
+
+#
+# Miscellaneous USB options
+#
+CONFIG_USB_DEVICEFS=y
+# CONFIG_USB_DEVICE_CLASS is not set
+# CONFIG_USB_DYNAMIC_MINORS is not set
+# CONFIG_USB_SUSPEND is not set
+# CONFIG_USB_PERSIST is not set
+# CONFIG_USB_OTG is not set
+
+#
+# USB Host Controller Drivers
+#
+# CONFIG_USB_ISP116X_HCD is not set
+# CONFIG_USB_OHCI_HCD is not set
+# CONFIG_USB_SL811_HCD is not set
+# CONFIG_USB_R8A66597_HCD is not set
+
+#
+# USB Device Class drivers
+#
+# CONFIG_USB_ACM is not set
+# CONFIG_USB_PRINTER is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# may also be needed; see USB_STORAGE Help for more information
+#
+# CONFIG_USB_LIBUSUAL is not set
+
+#
+# USB Imaging devices
+#
+# CONFIG_USB_MDC800 is not set
+# CONFIG_USB_MON is not set
+
+#
+# USB port drivers
+#
+
+#
+# USB Serial Converter support
+#
+CONFIG_USB_SERIAL=m
+# CONFIG_USB_SERIAL_GENERIC is not set
+# CONFIG_USB_SERIAL_AIRCABLE is not set
+# CONFIG_USB_SERIAL_AIRPRIME is not set
+# CONFIG_USB_SERIAL_ARK3116 is not set
+# CONFIG_USB_SERIAL_BELKIN is not set
+# CONFIG_USB_SERIAL_CH341 is not set
+# CONFIG_USB_SERIAL_WHITEHEAT is not set
+# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
+# CONFIG_USB_SERIAL_CP2101 is not set
+# CONFIG_USB_SERIAL_CYPRESS_M8 is not set
+# CONFIG_USB_SERIAL_EMPEG is not set
+# CONFIG_USB_SERIAL_FTDI_SIO is not set
+# CONFIG_USB_SERIAL_FUNSOFT is not set
+# CONFIG_USB_SERIAL_VISOR is not set
+# CONFIG_USB_SERIAL_IPAQ is not set
+# CONFIG_USB_SERIAL_IR is not set
+# CONFIG_USB_SERIAL_EDGEPORT is not set
+# CONFIG_USB_SERIAL_EDGEPORT_TI is not set
+# CONFIG_USB_SERIAL_GARMIN is not set
+# CONFIG_USB_SERIAL_IPW is not set
+# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
+# CONFIG_USB_SERIAL_KEYSPAN is not set
+# CONFIG_USB_SERIAL_KLSI is not set
+# CONFIG_USB_SERIAL_KOBIL_SCT is not set
+# CONFIG_USB_SERIAL_MCT_U232 is not set
+# CONFIG_USB_SERIAL_MOS7720 is not set
+# CONFIG_USB_SERIAL_MOS7840 is not set
+# CONFIG_USB_SERIAL_NAVMAN is not set
+# CONFIG_USB_SERIAL_PL2303 is not set
+# CONFIG_USB_SERIAL_OTI6858 is not set
+# CONFIG_USB_SERIAL_HP4X is not set
+# CONFIG_USB_SERIAL_SAFE is not set
+# CONFIG_USB_SERIAL_SIERRAWIRELESS is not set
+# CONFIG_USB_SERIAL_TI is not set
+# CONFIG_USB_SERIAL_CYBERJACK is not set
+# CONFIG_USB_SERIAL_XIRCOM is not set
+# CONFIG_USB_SERIAL_OPTION is not set
+# CONFIG_USB_SERIAL_OMNINET is not set
+# CONFIG_USB_SERIAL_DEBUG is not set
+
+#
+# USB Miscellaneous drivers
+#
+# CONFIG_USB_EMI62 is not set
+# CONFIG_USB_EMI26 is not set
+# CONFIG_USB_ADUTUX is not set
+# CONFIG_USB_AUERSWALD is not set
+# CONFIG_USB_RIO500 is not set
+# CONFIG_USB_LEGOTOWER is not set
+# CONFIG_USB_LCD is not set
+# CONFIG_USB_BERRY_CHARGE is not set
+# CONFIG_USB_LED is not set
+# CONFIG_USB_CYPRESS_CY7C63 is not set
+# CONFIG_USB_CYTHERM is not set
+# CONFIG_USB_PHIDGET is not set
+# CONFIG_USB_IDMOUSE is not set
+# CONFIG_USB_FTDI_ELAN is not set
+# CONFIG_USB_APPLEDISPLAY is not set
+# CONFIG_USB_LD is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_IOWARRIOR is not set
+# CONFIG_USB_TEST is not set
+
+#
+# USB DSL modem support
+#
+
+#
+# USB Gadget Support
+#
+CONFIG_USB_GADGET=m
+# CONFIG_USB_GADGET_DEBUG is not set
+# CONFIG_USB_GADGET_DEBUG_FILES is not set
+# CONFIG_USB_GADGET_DEBUG_FS is not set
+CONFIG_USB_GADGET_SELECTED=y
+# CONFIG_USB_GADGET_AMD5536UDC is not set
+# CONFIG_USB_GADGET_ATMEL_USBA is not set
+# CONFIG_USB_GADGET_FSL_USB2 is not set
+# CONFIG_USB_GADGET_NET2280 is not set
+# CONFIG_USB_GADGET_PXA2XX is not set
+# CONFIG_USB_GADGET_M66592 is not set
+# CONFIG_USB_GADGET_GOKU is not set
+# CONFIG_USB_GADGET_LH7A40X is not set
+# CONFIG_USB_GADGET_OMAP is not set
+# CONFIG_USB_GADGET_S3C2410 is not set
+# CONFIG_USB_GADGET_AT91 is not set
+CONFIG_USB_GADGET_DUMMY_HCD=y
+CONFIG_USB_DUMMY_HCD=m
+CONFIG_USB_GADGET_DUALSPEED=y
+# CONFIG_USB_ZERO is not set
+# CONFIG_USB_ETH is not set
+# CONFIG_USB_GADGETFS is not set
+# CONFIG_USB_FILE_STORAGE is not set
+# CONFIG_USB_G_SERIAL is not set
+# CONFIG_USB_MIDI_GADGET is not set
+CONFIG_MMC=y
+# CONFIG_MMC_DEBUG is not set
+# CONFIG_MMC_UNSAFE_RESUME is not set
+
+#
+# MMC/SD Card Drivers
+#
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_BLOCK_BOUNCE=y
+# CONFIG_SDIO_UART is not set
+
+#
+# MMC/SD Host Controller Drivers
+#
+# CONFIG_MMC_PXA is not set
+CONFIG_NEW_LEDS=y
+# CONFIG_LEDS_CLASS is not set
+
+#
+# LED drivers
+#
+
+#
+# LED Triggers
+#
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+# CONFIG_LEDS_TRIGGER_IDE_DISK is not set
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+# CONFIG_RTC_HCTOSYS is not set
+# CONFIG_RTC_DEBUG is not set
+
+#
+# RTC interfaces
+#
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+# CONFIG_RTC_DRV_TEST is not set
+
+#
+# I2C RTC drivers
+#
+# CONFIG_RTC_DRV_DS1307 is not set
+# CONFIG_RTC_DRV_DS1374 is not set
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+# CONFIG_RTC_DRV_RS5C372 is not set
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+CONFIG_RTC_DRV_PCF8583=m
+# CONFIG_RTC_DRV_M41T80 is not set
+
+#
+# SPI RTC drivers
+#
+
+#
+# Platform RTC drivers
+#
+# CONFIG_RTC_DRV_CMOS is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
+
+#
+# on-CPU RTC drivers
+#
+# CONFIG_RTC_DRV_SA1100 is not set
+
+#
+# File systems
+#
+# CONFIG_EXT2_FS is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4DEV_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+CONFIG_FS_POSIX_ACL=y
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_QUOTA is not set
+CONFIG_DNOTIFY=y
+# CONFIG_AUTOFS_FS is not set
+CONFIG_AUTOFS4_FS=y
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+CONFIG_FAT_FS=m
+CONFIG_MSDOS_FS=m
+CONFIG_VFAT_FS=m
+CONFIG_FAT_DEFAULT_CODEPAGE=437
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-15"
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+# CONFIG_HUGETLB_PAGE is not set
+CONFIG_CONFIGFS_FS=y
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_ECRYPT_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_FS_DEBUG=1
+CONFIG_JFFS2_FS_WRITEBUFFER=y
+CONFIG_JFFS2_FS_WBUF_VERIFY=y
+# CONFIG_JFFS2_SUMMARY is not set
+# CONFIG_JFFS2_FS_XATTR is not set
+# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
+CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS2_LZO is not set
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
+CONFIG_NFS_V4=y
+# CONFIG_NFS_DIRECTIO is not set
+CONFIG_NFSD=y
+CONFIG_NFSD_V3=y
+# CONFIG_NFSD_V3_ACL is not set
+CONFIG_NFSD_V4=y
+CONFIG_NFSD_TCP=y
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_EXPORTFS=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+CONFIG_SUNRPC_GSS=y
+# CONFIG_SUNRPC_BIND34 is not set
+CONFIG_RPCSEC_GSS_KRB5=y
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+CONFIG_NLS=y
+CONFIG_NLS_DEFAULT="iso8859-15"
+CONFIG_NLS_CODEPAGE_437=y
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+CONFIG_NLS_CODEPAGE_850=y
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=m
+# CONFIG_NLS_ISO8859_2 is not set
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+CONFIG_NLS_ISO8859_15=m
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+CONFIG_NLS_UTF8=m
+# CONFIG_DLM is not set
+CONFIG_INSTRUMENTATION=y
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+
+#
+# Kernel hacking
+#
+CONFIG_PRINTK_TIME=y
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
+# CONFIG_SCHEDSTATS is not set
+# CONFIG_TIMER_STATS is not set
+# CONFIG_DEBUG_SLAB is not set
+CONFIG_DEBUG_PREEMPT=y
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_LOCK_ALLOC is not set
+# CONFIG_PROVE_LOCKING is not set
+# CONFIG_LOCK_STAT is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_INFO=y
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
+CONFIG_FRAME_POINTER=y
+CONFIG_FORCED_INLINING=y
+# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_SAMPLES is not set
+CONFIG_DEBUG_USER=y
+CONFIG_DEBUG_ERRORS=y
+CONFIG_DEBUG_LL=y
+# CONFIG_DEBUG_ICEDCC is not set
+
+#
+# Security options
+#
+CONFIG_KEYS=y
+CONFIG_KEYS_DEBUG_PROC_KEYS=y
+CONFIG_SECURITY=y
+# CONFIG_SECURITY_NETWORK is not set
+CONFIG_SECURITY_CAPABILITIES=y
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_SECURITY_ROOTPLUG is not set
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_ALGAPI=y
+CONFIG_CRYPTO_BLKCIPHER=y
+CONFIG_CRYPTO_MANAGER=y
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_MD4 is not set
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_SHA1=m
+CONFIG_CRYPTO_SHA256=m
+CONFIG_CRYPTO_SHA512=m
+# CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_GF128MUL is not set
+CONFIG_CRYPTO_ECB=y
+CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_PCBC=m
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_XTS is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+CONFIG_CRYPTO_DES=y
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+# CONFIG_CRYPTO_SERPENT is not set
+CONFIG_CRYPTO_AES=m
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_TEA is not set
+CONFIG_CRYPTO_ARC4=y
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_SEED is not set
+CONFIG_CRYPTO_DEFLATE=m
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_CRC32C=y
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_TEST is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+CONFIG_CRYPTO_HW=y
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+CONFIG_CRC_CCITT=y
+CONFIG_CRC16=y
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+CONFIG_LIBCRC32C=y
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_REED_SOLOMON=y
+CONFIG_REED_SOLOMON_DEC16=y
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index e5b7063ed818..0908bea0f609 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -103,6 +103,10 @@ config MACH_EM_X270
 	bool "CompuLab EM-x270 platform"
 	select PXA27x
 
+config MACH_COLIBRI
+	bool "Toradex Colibri PX27x"
+	select PXA27x
+
 config MACH_ZYLONITE
 	bool "PXA3xx Development Platform"
 	select PXA3xx
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 1af56805b954..b5c916c0747d 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_MACH_LOGICPD_PXA270) += lpd270.o
 obj-$(CONFIG_MACH_MAINSTONE)	+= mainstone.o
 obj-$(CONFIG_ARCH_PXA_IDP)	+= idp.o
 obj-$(CONFIG_MACH_TRIZEPS4)	+= trizeps4.o
+obj-$(CONFIG_MACH_COLIBRI)	+= colibri.o
 obj-$(CONFIG_PXA_SHARP_C7xx)	+= corgi.o corgi_ssp.o corgi_lcd.o sharpsl_pm.o corgi_pm.o
 obj-$(CONFIG_PXA_SHARP_Cxx00)	+= spitz.o corgi_ssp.o corgi_lcd.o sharpsl_pm.o spitz_pm.o
 obj-$(CONFIG_MACH_AKITA)	+= akita-ioexp.o
diff --git a/arch/arm/mach-pxa/colibri.c b/arch/arm/mach-pxa/colibri.c
new file mode 100644
index 000000000000..6db54e31c397
--- /dev/null
+++ b/arch/arm/mach-pxa/colibri.c
@@ -0,0 +1,134 @@
+/*
+ *  linux/arch/arm/mach-pxa/colibri.c
+ *
+ *  Support for Toradex PXA27x based Colibri module
+ *  Daniel Mack <daniel@caiaq.de>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/sysdev.h>
+#include <linux/interrupt.h>
+#include <linux/bitops.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/sizes.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/flash.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/colibri.h>
+
+#include "generic.h"
+#include "devices.h"
+
+/*
+ * Flash
+ */
+static struct mtd_partition colibri_partitions[] = {
+	{
+		.name =		"Bootloader",
+		.offset =	0x00000000,
+		.size =		0x00040000,
+		.mask_flags =	MTD_WRITEABLE  /* force read-only */
+	}, {
+		.name =		"Kernel",
+		.offset =	0x00040000,
+		.size =		0x00400000,
+		.mask_flags =	0
+	}, {
+		.name =		"Rootfs",
+		.offset =	0x00440000,
+		.size =		MTDPART_SIZ_FULL,
+		.mask_flags =	0
+	}
+};
+
+static struct physmap_flash_data colibri_flash_data[] = {
+	{
+		.width		= 4,			/* bankwidth in bytes */
+		.parts		= colibri_partitions,
+		.nr_parts	= ARRAY_SIZE(colibri_partitions)
+	}
+};
+
+static struct resource flash_resource = {
+	.start	= PXA_CS0_PHYS,
+	.end	= PXA_CS0_PHYS + SZ_32M - 1,
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct platform_device flash_device = {
+	.name	= "physmap-flash",
+	.id	= 0,
+	.dev 	= {
+		.platform_data = colibri_flash_data,
+	},
+	.resource = &flash_resource,
+	.num_resources = 1,
+};
+
+/*
+ * DM9000 Ethernet
+ */
+static struct resource dm9000_resources[] = {
+	[0] = {
+		.start	= COLIBRI_ETH_PHYS,
+		.end	= COLIBRI_ETH_PHYS + 3,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= COLIBRI_ETH_PHYS + 4,
+		.end	= COLIBRI_ETH_PHYS + 4 + 500,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= COLIBRI_ETH_IRQ,
+		.end	= COLIBRI_ETH_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device dm9000_device = {
+	.name		= "dm9000",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(dm9000_resources),
+	.resource	= dm9000_resources,
+};
+
+static struct platform_device *colibri_devices[] __initdata = {
+	&flash_device,
+	&dm9000_device,
+};
+
+static void __init colibri_init(void)
+{
+	/* DM9000 LAN */
+	pxa_gpio_mode(GPIO78_nCS_2_MD);
+	pxa_gpio_mode(GPIO_DM9000 | GPIO_IN);
+	set_irq_type(COLIBRI_ETH_IRQ, IRQT_FALLING);
+
+	platform_add_devices(colibri_devices, ARRAY_SIZE(colibri_devices));
+}
+
+MACHINE_START(COLIBRI, "Toradex Colibri PXA27x")
+	.phys_io	= 0x40000000,
+	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
+	.boot_params	= COLIBRI_SDRAM_BASE + 0x100,
+	.init_machine	= colibri_init,
+	.map_io		= pxa_map_io,
+	.init_irq	= pxa27x_init_irq,
+	.timer		= &pxa_timer,
+MACHINE_END
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index 3286d2a0a870..6a20a5491a96 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -66,6 +66,7 @@
 #include <linux/dm9000.h>
 #include <linux/delay.h>
 #include <linux/platform_device.h>
+#include <linux/irq.h>
 
 #include <asm/delay.h>
 #include <asm/irq.h>
@@ -113,7 +114,7 @@
 #define writesl	outsl
 #define DM9000_IRQ_FLAGS	(IRQF_SHARED | IRQF_TRIGGER_HIGH)
 #else
-#define DM9000_IRQ_FLAGS	IRQF_SHARED
+#define DM9000_IRQ_FLAGS	(IRQF_SHARED | IRQT_RISING)
 #endif
 
 /*
diff --git a/include/asm-arm/arch-pxa/colibri.h b/include/asm-arm/arch-pxa/colibri.h
new file mode 100644
index 000000000000..2ae373fb5675
--- /dev/null
+++ b/include/asm-arm/arch-pxa/colibri.h
@@ -0,0 +1,19 @@
+#ifndef _COLIBRI_H_
+#define _COLIBRI_H_
+
+/* physical memory regions */
+#define COLIBRI_FLASH_PHYS	(PXA_CS0_PHYS)  /* Flash region */
+#define COLIBRI_ETH_PHYS	(PXA_CS2_PHYS)  /* Ethernet DM9000 region */
+#define COLIBRI_SDRAM_BASE	0xa0000000      /* SDRAM region */
+
+/* virtual memory regions */
+#define COLIBRI_DISK_VIRT	0xF0000000	/* Disk On Chip region */
+
+/* size of flash */
+#define COLIBRI_FLASH_SIZE	0x02000000	/* Flash size 32 MB */
+
+/* Ethernet Controller Davicom DM9000 */
+#define GPIO_DM9000		114
+#define COLIBRI_ETH_IRQ	IRQ_GPIO(GPIO_DM9000)
+
+#endif /* _COLIBRI_H_ */
-- 
cgit v1.2.3-59-g8ed1b


From 9cbae12cca55332c9fef8f700ea28d36d7cc54be Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sun, 23 Dec 2007 03:09:38 +0100
Subject: [ARM] 4723/1: BAST: Fix LCD driver default display setting

We have a default display set to 4, when we only have
three registered displays. Fix this argument (a seperate
patch has been generated to ensure that the LCD driver
takes notice of this bug)

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/mach-bast.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c
index 587864fe25fb..53c2a1376e07 100644
--- a/arch/arm/mach-s3c2410/mach-bast.c
+++ b/arch/arm/mach-s3c2410/mach-bast.c
@@ -530,7 +530,7 @@ static struct s3c2410fb_mach_info __initdata bast_fb_info = {
 
 	.displays = bast_lcd_info,
 	.num_displays = ARRAY_SIZE(bast_lcd_info),
-	.default_display = 4,
+	.default_display = 1,
 };
 
 /* Standard BAST devices */
-- 
cgit v1.2.3-59-g8ed1b


From 71e5b2f154eb743d609bb4e743ea344596769911 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sun, 23 Dec 2007 03:09:30 +0100
Subject: [ARM] 4724/1: S3C2412: Select S3C2410 base GPIO implementation

The S3C2412 GPIO is similar enough to the S3C2410 that
it can use it as a base for GPIO functionality.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2412/Kconfig | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2412/Kconfig b/arch/arm/mach-s3c2412/Kconfig
index 8e8fe48ea47f..0b43431d4b75 100644
--- a/arch/arm/mach-s3c2412/Kconfig
+++ b/arch/arm/mach-s3c2412/Kconfig
@@ -10,6 +10,7 @@ config CPU_S3C2412
 	select CPU_LLSERIAL_S3C2440
 	select S3C2412_PM if PM
 	select S3C2412_DMA if S3C2410_DMA
+	select S3C2410_GPIO
 	help
 	  Support for the S3C2412 and S3C2413 SoCs from the S3C24XX line
 
-- 
cgit v1.2.3-59-g8ed1b


From d45c30cb4c0b5f5555397ba2e942d63b4170fa1f Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sun, 23 Dec 2007 03:09:40 +0100
Subject: [ARM] 4725/1: S3C2412: Fix IIS and SDI definitions in DMA map

The IIS and SDI register hw_addr definitions are
incorrect in the DMA map for the S3C2412.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2412/dma.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2412/dma.c b/arch/arm/mach-s3c2412/dma.c
index 53c1d5bbce19..c9cd51439126 100644
--- a/arch/arm/mach-s3c2412/dma.c
+++ b/arch/arm/mach-s3c2412/dma.c
@@ -30,6 +30,7 @@
 #include <asm/arch/regs-mem.h>
 #include <asm/arch/regs-lcd.h>
 #include <asm/arch/regs-sdi.h>
+#include <asm/plat-s3c24xx/regs-s3c2412-iis.h>
 #include <asm/plat-s3c24xx/regs-iis.h>
 #include <asm/plat-s3c24xx/regs-spi.h>
 
@@ -47,8 +48,8 @@ static struct s3c24xx_dma_map __initdata s3c2412_dma_mappings[] = {
 	[DMACH_SDI] = {
 		.name		= "sdi",
 		.channels	= MAP(S3C2412_DMAREQSEL_SDI),
-		.hw_addr.to	= S3C2410_PA_IIS + S3C2410_IISFIFO,
-		.hw_addr.from	= S3C2410_PA_IIS + S3C2410_IISFIFO,
+		.hw_addr.to	= S3C2410_PA_SDI + S3C2410_SDIDATA,
+		.hw_addr.from	= S3C2410_PA_SDI + S3C2410_SDIDATA,
 	},
 	[DMACH_SPI0] = {
 		.name		= "spi0",
@@ -105,12 +106,12 @@ static struct s3c24xx_dma_map __initdata s3c2412_dma_mappings[] = {
 	[DMACH_I2S_IN] = {
 		.name		= "i2s-sdi",
 		.channels	= MAP(S3C2412_DMAREQSEL_I2SRX),
-		.hw_addr.from	= S3C2410_PA_IIS + S3C2410_IISFIFO,
+		.hw_addr.from	= S3C2410_PA_IIS + S3C2412_IISRXD,
 	},
 	[DMACH_I2S_OUT] = {
 		.name		= "i2s-sdo",
 		.channels	= MAP(S3C2412_DMAREQSEL_I2STX),
-		.hw_addr.to	= S3C2410_PA_IIS + S3C2410_IISFIFO,
+		.hw_addr.to	= S3C2410_PA_IIS + S3C2412_IISTXD,
 	},
 	[DMACH_USB_EP1] = {
 		.name		= "usb-ep1",
-- 
cgit v1.2.3-59-g8ed1b


From 0953612a479491b57db794580b13a8e39b810724 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sun, 23 Dec 2007 03:09:37 +0100
Subject: [ARM] 4727/1: S3C2412: Remove unused GPESLPCON

S3C2412_GPESLPCON does not exist in the register
mappings, so remove it.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2412/pm.c               | 1 -
 include/asm-arm/arch-s3c2410/regs-gpio.h | 1 -
 2 files changed, 2 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2412/pm.c b/arch/arm/mach-s3c2412/pm.c
index 8988dac388a9..974ffb130479 100644
--- a/arch/arm/mach-s3c2412/pm.c
+++ b/arch/arm/mach-s3c2412/pm.c
@@ -88,7 +88,6 @@ static struct sleep_save s3c2412_sleep[] = {
 	SAVE_ITEM(S3C2412_GPBSLPCON),
 	SAVE_ITEM(S3C2412_GPCSLPCON),
 	SAVE_ITEM(S3C2412_GPDSLPCON),
-	SAVE_ITEM(S3C2412_GPESLPCON),
 	SAVE_ITEM(S3C2412_GPFSLPCON),
 	SAVE_ITEM(S3C2412_GPGSLPCON),
 	SAVE_ITEM(S3C2412_GPHSLPCON),
diff --git a/include/asm-arm/arch-s3c2410/regs-gpio.h b/include/asm-arm/arch-s3c2410/regs-gpio.h
index b693158b2d3c..1f089fb71a80 100644
--- a/include/asm-arm/arch-s3c2410/regs-gpio.h
+++ b/include/asm-arm/arch-s3c2410/regs-gpio.h
@@ -1133,7 +1133,6 @@
 #define S3C2412_GPBSLPCON	S3C2410_GPIOREG(0x1C)
 #define S3C2412_GPCSLPCON	S3C2410_GPIOREG(0x2C)
 #define S3C2412_GPDSLPCON	S3C2410_GPIOREG(0x3C)
-#define S3C2412_GPESLPCON	S3C2410_GPIOREG(0x4C)
 #define S3C2412_GPFSLPCON	S3C2410_GPIOREG(0x5C)
 #define S3C2412_GPGSLPCON	S3C2410_GPIOREG(0x6C)
 #define S3C2412_GPHSLPCON	S3C2410_GPIOREG(0x7C)
-- 
cgit v1.2.3-59-g8ed1b


From b6a175a562a1c8d326de0ee501114a2af2602772 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sun, 23 Dec 2007 03:09:35 +0100
Subject: [ARM] 4728/1: BAST: Do not add IIS device on initialisation

The IIS device is being registered by the Simtec Audio
driver, and thus registering here causes an error due
to device tree naming collision.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/mach-bast.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c
index 53c2a1376e07..66175471fff3 100644
--- a/arch/arm/mach-s3c2410/mach-bast.c
+++ b/arch/arm/mach-s3c2410/mach-bast.c
@@ -540,7 +540,6 @@ static struct platform_device *bast_devices[] __initdata = {
 	&s3c_device_lcd,
 	&s3c_device_wdt,
 	&s3c_device_i2c,
-	&s3c_device_iis,
  	&s3c_device_rtc,
 	&s3c_device_nand,
 	&bast_device_nor,
-- 
cgit v1.2.3-59-g8ed1b


From 8e3007a0e8a0d2f5e3139cb9fe606c2a998b9ed3 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sun, 23 Dec 2007 03:09:36 +0100
Subject: [ARM] 4729/1: VR1000: Do not add IIS device on initialisation

The IIS device is being registered by the Simtec Audio
driver, and thus registering here causes an error due
to device tree naming collision.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/mach-vr1000.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/mach-vr1000.c b/arch/arm/mach-s3c2410/mach-vr1000.c
index 9f43f3f124f5..3aade7b78fe5 100644
--- a/arch/arm/mach-s3c2410/mach-vr1000.c
+++ b/arch/arm/mach-s3c2410/mach-vr1000.c
@@ -365,7 +365,6 @@ static struct platform_device *vr1000_devices[] __initdata = {
 	&s3c_device_lcd,
 	&s3c_device_wdt,
 	&s3c_device_i2c,
-	&s3c_device_iis,
 	&s3c_device_adc,
 	&serial_device,
 	&vr1000_nor,
-- 
cgit v1.2.3-59-g8ed1b


From 0baada2742a42390a2ebed09e07e1fab518db884 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sun, 23 Dec 2007 03:09:33 +0100
Subject: [ARM] 4730/1: S3C2412: Ensure the PWRCFG has the right mode for RTC
 wake

Ensure that if the RTC IRQ is not selected for wake in the
base configuration, then the PWRCFG has the same value set
in it.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2412/irq.c        | 24 ++++++++++++++++++++++++
 arch/arm/plat-s3c24xx/irq.c        |  2 +-
 include/asm-arm/plat-s3c24xx/irq.h |  2 ++
 3 files changed, 27 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2412/irq.c b/arch/arm/mach-s3c2412/irq.c
index e9d0c769f5da..cc1917bf952a 100644
--- a/arch/arm/mach-s3c2412/irq.c
+++ b/arch/arm/mach-s3c2412/irq.c
@@ -33,6 +33,7 @@
 
 #include <asm/arch/regs-irq.h>
 #include <asm/arch/regs-gpio.h>
+#include <asm/arch/regs-power.h>
 
 #include <asm/plat-s3c24xx/cpu.h>
 #include <asm/plat-s3c24xx/irq.h>
@@ -153,6 +154,22 @@ static struct irq_chip s3c2412_irq_cfsdi = {
 	.unmask		= s3c2412_irq_cfsdi_unmask,
 };
 
+static int s3c2412_irq_rtc_wake(unsigned int irqno, unsigned int state)
+{
+	unsigned long pwrcfg;
+
+	pwrcfg = __raw_readl(S3C2412_PWRCFG);
+	if (state)
+		pwrcfg &= ~S3C2412_PWRCFG_RTC_MASKIRQ;
+	else
+		pwrcfg |= S3C2412_PWRCFG_RTC_MASKIRQ;
+	__raw_writel(pwrcfg, S3C2412_PWRCFG);
+
+	return s3c_irq_chip.set_wake(irqno, state);
+}
+
+static struct irq_chip s3c2412_irq_rtc_chip;
+
 static int s3c2412_irq_add(struct sys_device *sysdev)
 {
 	unsigned int irqno;
@@ -173,6 +190,13 @@ static int s3c2412_irq_add(struct sys_device *sysdev)
 		set_irq_flags(irqno, IRQF_VALID);
 	}
 
+	/* change RTC IRQ's set wake method */
+
+	s3c2412_irq_rtc_chip = s3c_irq_chip;
+	s3c2412_irq_rtc_chip.set_wake = s3c2412_irq_rtc_wake;
+
+	set_irq_chip(IRQ_RTC, &s3c2412_irq_rtc_chip);
+
 	return 0;
 }
 
diff --git a/arch/arm/plat-s3c24xx/irq.c b/arch/arm/plat-s3c24xx/irq.c
index 8fbc88470261..d486f5112569 100644
--- a/arch/arm/plat-s3c24xx/irq.c
+++ b/arch/arm/plat-s3c24xx/irq.c
@@ -187,7 +187,7 @@ struct irq_chip s3c_irq_level_chip = {
 	.set_wake	= s3c_irq_wake
 };
 
-static struct irq_chip s3c_irq_chip = {
+struct irq_chip s3c_irq_chip = {
 	.name		= "s3c",
 	.ack		= s3c_irq_ack,
 	.mask		= s3c_irq_mask,
diff --git a/include/asm-arm/plat-s3c24xx/irq.h b/include/asm-arm/plat-s3c24xx/irq.h
index 8af6d9579b31..45746a995343 100644
--- a/include/asm-arm/plat-s3c24xx/irq.h
+++ b/include/asm-arm/plat-s3c24xx/irq.h
@@ -15,7 +15,9 @@
 
 #define EXTINT_OFF (IRQ_EINT4 - 4)
 
+/* these are exported for arch/arm/mach-* usage */
 extern struct irq_chip s3c_irq_level_chip;
+extern struct irq_chip s3c_irq_chip;
 
 static inline void
 s3c_irqsub_mask(unsigned int irqno, unsigned int parentbit,
-- 
cgit v1.2.3-59-g8ed1b


From 332349518f1958b0bc1ae3febc2e4f75f214d255 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sun, 23 Dec 2007 03:09:34 +0100
Subject: [ARM] 4731/1: S3C2412: Check for incomplete sleep

Check if the sleep command returns due to a pending interrupt
in the standby unit. If this happens, try and ack the IRQ
before re-trying the resume.

It is currently unclear whether the resume can be backed out
of at this stage as this could cause a problem with level
based interrupts.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2412/Makefile |  2 +-
 arch/arm/mach-s3c2412/pm.c     | 17 ++---------
 arch/arm/mach-s3c2412/sleep.S  | 68 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 72 insertions(+), 15 deletions(-)
 create mode 100644 arch/arm/mach-s3c2412/sleep.S

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2412/Makefile b/arch/arm/mach-s3c2412/Makefile
index f8e011691b31..7b782c7df7b4 100644
--- a/arch/arm/mach-s3c2412/Makefile
+++ b/arch/arm/mach-s3c2412/Makefile
@@ -13,7 +13,7 @@ obj-$(CONFIG_CPU_S3C2412)	+= s3c2412.o
 obj-$(CONFIG_CPU_S3C2412)	+= irq.o
 obj-$(CONFIG_CPU_S3C2412)	+= clock.o
 obj-$(CONFIG_S3C2412_DMA)	+= dma.o
-obj-$(CONFIG_S3C2412_PM)	+= pm.o
+obj-$(CONFIG_S3C2412_PM)	+= pm.o sleep.o
 
 # Machine support
 
diff --git a/arch/arm/mach-s3c2412/pm.c b/arch/arm/mach-s3c2412/pm.c
index 974ffb130479..d4ffb2d98076 100644
--- a/arch/arm/mach-s3c2412/pm.c
+++ b/arch/arm/mach-s3c2412/pm.c
@@ -33,6 +33,8 @@
 
 #include <asm/plat-s3c24xx/s3c2412.h>
 
+extern void s3c2412_sleep_enter(void);
+
 static void s3c2412_cpu_suspend(void)
 {
 	unsigned long tmp;
@@ -43,20 +45,7 @@ static void s3c2412_cpu_suspend(void)
 	tmp |= S3C2412_PWRCFG_STANDBYWFI_SLEEP;
 	__raw_writel(tmp, S3C2412_PWRCFG);
 
-	/* issue the standby signal into the pm unit. Note, we
-	 * issue a write-buffer drain just in case */
-
-	tmp = 0;
-
-	asm("b 1f\n\t"
-	    ".align 5\n\t"
-	    "1:\n\t"
-	    "mcr p15, 0, %0, c7, c10, 4\n\t"
-	    "mcr p15, 0, %0, c7, c0, 4" :: "r" (tmp));
-
-	/* we should never get past here */
-
-	panic("sleep resumed to originator?");
+	s3c2412_sleep_enter();
 }
 
 static void s3c2412_pm_prepare(void)
diff --git a/arch/arm/mach-s3c2412/sleep.S b/arch/arm/mach-s3c2412/sleep.S
new file mode 100644
index 000000000000..db32cac4199a
--- /dev/null
+++ b/arch/arm/mach-s3c2412/sleep.S
@@ -0,0 +1,68 @@
+/* linux/arch/arm/mach-s3c2412/sleep.S
+ *
+ * Copyright (c) 2007 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2412 Power Manager low-level sleep support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+#include <asm/hardware.h>
+#include <asm/arch/map.h>
+
+#include <asm/arch/regs-irq.h>
+
+	.text
+
+	.global	s3c2412_sleep_enter
+
+s3c2412_sleep_enter:
+	mov	r0, #0			/* argument for coprocessors */
+	ldr	r1, =S3C2410_INTPND
+	ldr	r2, =S3C2410_SRCPND
+	ldr	r3, =S3C2410_EINTPEND
+
+	teq	r0, r0
+	bl	s3c2412_sleep_enter1
+	teq	pc, r0
+	bl	s3c2412_sleep_enter1
+
+	.align	5
+
+	/* this is called twice, first with the Z flag to ensure that the
+	 * instructions have been loaded into the cache, and the second
+	 * time to try and suspend the system.
+	*/
+s3c2412_sleep_enter1:
+	mcr	p15, 0, r0, c7, c10, 4
+	mcrne	p15, 0, r0, c7, c0, 4
+
+	/* if we return from here, it is because an interrupt was
+	 * active when we tried to shutdown. Try and ack the IRQ and
+	 * retry, as simply returning causes the system to lock.
+	*/
+
+	ldrne	r9, [ r1 ]
+	strne	r9, [ r1 ]
+	ldrne	r9, [ r2 ]
+	strne	r9, [ r2 ]
+	ldrne	r9, [ r3 ]
+	strne	r9, [ r3 ]
+	bne	s3c2412_sleep_enter1
+
+	mov	pc, r14
-- 
cgit v1.2.3-59-g8ed1b


From 57c1b0f8dbfffaa00a242b171429e56489caef15 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:17 +0100
Subject: [ARM] 4777/1: S3C24XX: Ensure clk_set_rate() checks the set_rate
 method for the clk

Add checks for clk_set_rate() and ensure that we do not allow set_rate
to be called for a clock that does not have it defined. Add default
methods for fclk, hclk, pclk and mpll.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/plat-s3c24xx/clock.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/plat-s3c24xx/clock.c b/arch/arm/plat-s3c24xx/clock.c
index 79cda0faec86..99a44746f8f2 100644
--- a/arch/arm/plat-s3c24xx/clock.c
+++ b/arch/arm/plat-s3c24xx/clock.c
@@ -172,6 +172,15 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
 	if (IS_ERR(clk))
 		return -EINVAL;
 
+	/* We do not default just do a clk->rate = rate as
+	 * the clock may have been made this way by choice.
+	 */
+
+	WARN_ON(clk->set_rate == NULL);
+
+	if (clk->set_rate == NULL)
+		return -EINVAL;
+
 	mutex_lock(&clocks_mutex);
 	ret = (clk->set_rate)(clk, rate);
 	mutex_unlock(&clocks_mutex);
@@ -213,6 +222,12 @@ EXPORT_SYMBOL(clk_set_parent);
 
 /* base clocks */
 
+static int clk_default_setrate(struct clk *clk, unsigned long rate)
+{
+	clk->rate = rate;
+	return 0;
+}
+
 struct clk clk_xtal = {
 	.name		= "xtal",
 	.id		= -1,
@@ -224,6 +239,7 @@ struct clk clk_xtal = {
 struct clk clk_mpll = {
 	.name		= "mpll",
 	.id		= -1,
+	.set_rate	= clk_default_setrate,
 };
 
 struct clk clk_upll = {
@@ -239,6 +255,7 @@ struct clk clk_f = {
 	.rate		= 0,
 	.parent		= &clk_mpll,
 	.ctrlbit	= 0,
+	.set_rate	= clk_default_setrate,
 };
 
 struct clk clk_h = {
@@ -247,6 +264,7 @@ struct clk clk_h = {
 	.rate		= 0,
 	.parent		= NULL,
 	.ctrlbit	= 0,
+	.set_rate	= clk_default_setrate,
 };
 
 struct clk clk_p = {
@@ -255,6 +273,7 @@ struct clk clk_p = {
 	.rate		= 0,
 	.parent		= NULL,
 	.ctrlbit	= 0,
+	.set_rate	= clk_default_setrate,
 };
 
 struct clk clk_usb_bus = {
-- 
cgit v1.2.3-59-g8ed1b


From bdbea34ddd2e52dc73f03e7ef7197d4c0da400d6 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:18 +0100
Subject: [ARM] 4778/1: S3C2412: Add armclk and init from DVS state

Add armclk to the S3C2412 to indicate the current clock connected to
the ARM core.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2412/clock.c | 50 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2412/clock.c b/arch/arm/mach-s3c2412/clock.c
index 458993601897..42ccb5eb6042 100644
--- a/arch/arm/mach-s3c2412/clock.c
+++ b/arch/arm/mach-s3c2412/clock.c
@@ -234,6 +234,45 @@ static struct clk clk_msysclk = {
 	.set_parent	= s3c2412_setparent_msysclk,
 };
 
+static int s3c2412_setparent_armclk(struct clk *clk, struct clk *parent)
+{
+	unsigned long flags;
+	unsigned long clkdiv;
+	unsigned long dvs;
+
+	/* Note, we current equate fclk andf msysclk for S3C2412 */
+
+	if (parent == &clk_msysclk || parent == &clk_f)
+		dvs = 0;
+	else if (parent == &clk_h)
+		dvs = S3C2412_CLKDIVN_DVSEN;
+	else
+		return -EINVAL;
+
+	clk->parent = parent;
+
+	/* update this under irq lockdown, clkdivn is not protected
+	 * by the clock system. */
+
+	local_irq_save(flags);
+
+	clkdiv  = __raw_readl(S3C2410_CLKDIVN);
+	clkdiv &= ~S3C2412_CLKDIVN_DVSEN;
+	clkdiv |= dvs;
+	__raw_writel(clkdiv, S3C2410_CLKDIVN);
+
+	local_irq_restore(flags);
+
+	return 0;
+}
+
+static struct clk clk_armclk = {
+	.name		= "armclk",
+	.id		= -1,
+	.parent		= &clk_msysclk,
+	.set_parent	= s3c2412_setparent_armclk,
+};
+
 /* these next clocks have an divider immediately after them,
  * so we can register them with their divider and leave out the
  * intermediate clock stage
@@ -630,11 +669,13 @@ static struct clk *clks[] __initdata = {
 	&clk_erefclk,
 	&clk_urefclk,
 	&clk_mrefclk,
+	&clk_armclk,
 };
 
 int __init s3c2412_baseclk_add(void)
 {
 	unsigned long clkcon  = __raw_readl(S3C2410_CLKCON);
+	unsigned int dvs;
 	struct clk *clkp;
 	int ret;
 	int ptr;
@@ -655,6 +696,15 @@ int __init s3c2412_baseclk_add(void)
 		}
 	}
 
+	/* set the dvs state according to what we got at boot time */
+
+	dvs = __raw_readl(S3C2410_CLKDIVN) & S3C2412_CLKDIVN_DVSEN;
+
+	if (dvs)
+		clk_armclk.parent = &clk_h;
+
+	printk(KERN_INFO "S3C2412: DVS is %s\n", dvs ? "on" : "off");
+
 	/* ensure usb bus clock is within correct rate of 48MHz */
 
 	if (clk_get_rate(&clk_usb_bus) != (48 * 1000 * 1000)) {
-- 
cgit v1.2.3-59-g8ed1b


From 67d729adc0e76e21c82a2c59853f25f5f784ca79 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:19 +0100
Subject: [ARM] 4779/1: S3C2412: Add s3c2412_gpio_set_sleepcfg() call

Add s3c2412_gpio_set_sleepcfg() to allow the setting of the sleep
configuration of the GPIO blocks.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2412/Makefile           |  1 +
 arch/arm/mach-s3c2412/gpio.c             | 60 ++++++++++++++++++++++++++++++++
 include/asm-arm/arch-s3c2410/hardware.h  |  5 +++
 include/asm-arm/arch-s3c2410/regs-gpio.h |  5 +++
 4 files changed, 71 insertions(+)
 create mode 100644 arch/arm/mach-s3c2412/gpio.c

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2412/Makefile b/arch/arm/mach-s3c2412/Makefile
index 7b782c7df7b4..267f3348301e 100644
--- a/arch/arm/mach-s3c2412/Makefile
+++ b/arch/arm/mach-s3c2412/Makefile
@@ -12,6 +12,7 @@ obj-				:=
 obj-$(CONFIG_CPU_S3C2412)	+= s3c2412.o
 obj-$(CONFIG_CPU_S3C2412)	+= irq.o
 obj-$(CONFIG_CPU_S3C2412)	+= clock.o
+obj-$(CONFIG_CPU_S3C2412)	+= gpio.o
 obj-$(CONFIG_S3C2412_DMA)	+= dma.o
 obj-$(CONFIG_S3C2412_PM)	+= pm.o sleep.o
 
diff --git a/arch/arm/mach-s3c2412/gpio.c b/arch/arm/mach-s3c2412/gpio.c
new file mode 100644
index 000000000000..8e55c3a2eab8
--- /dev/null
+++ b/arch/arm/mach-s3c2412/gpio.c
@@ -0,0 +1,60 @@
+/* linux/arch/arm/mach-s3c2412/gpio.c
+ *
+ * Copyright (c) 2007 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * http://armlinux.simtec.co.uk/.
+ *
+ * S3C2412/S3C2413 specific GPIO support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <asm/arch/regs-gpio.h>
+
+#include <asm/hardware.h>
+
+int s3c2412_gpio_set_sleepcfg(unsigned int pin, unsigned int state)
+{
+	void __iomem *base = S3C24XX_GPIO_BASE(pin);
+	unsigned long offs = S3C2410_GPIO_OFFSET(pin);
+	unsigned long flags;
+	unsigned long slpcon;
+
+	offs *= 2;
+
+	if (pin < S3C2410_GPIO_BANKB)
+		return -EINVAL;
+
+	if (pin >= S3C2410_GPIO_BANKF &&
+	    pin <= S3C2410_GPIO_BANKG)
+		return -EINVAL;
+
+	if (pin > (S3C2410_GPIO_BANKH + 32))
+		return -EINVAL;
+
+	local_irq_save(flags);
+
+	slpcon = __raw_readl(base + 0x0C);
+
+	slpcon &= ~(3 << offs);
+	slpcon |= state << offs;
+
+	__raw_writel(slpcon, base + 0x0C);
+
+	local_irq_restore(flags);
+
+	return 0;
+}
+
+EXPORT_SYMBOL(s3c2412_gpio_set_sleepcfg);
diff --git a/include/asm-arm/arch-s3c2410/hardware.h b/include/asm-arm/arch-s3c2410/hardware.h
index 6dadf58ff984..faeaba514ffe 100644
--- a/include/asm-arm/arch-s3c2410/hardware.h
+++ b/include/asm-arm/arch-s3c2410/hardware.h
@@ -99,6 +99,11 @@ extern int s3c2440_set_dsc(unsigned int pin, unsigned int value);
 
 #endif /* CONFIG_CPU_S3C2440 */
 
+#ifdef CONFIG_CPU_S3C2412
+
+extern int s3c2412_gpio_set_sleepcfg(unsigned int pin, unsigned int state);
+
+#endif /* CONFIG_CPU_S3C2412 */
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/include/asm-arm/arch-s3c2410/regs-gpio.h b/include/asm-arm/arch-s3c2410/regs-gpio.h
index 1f089fb71a80..0ad75d716ded 100644
--- a/include/asm-arm/arch-s3c2410/regs-gpio.h
+++ b/include/asm-arm/arch-s3c2410/regs-gpio.h
@@ -1138,6 +1138,11 @@
 #define S3C2412_GPHSLPCON	S3C2410_GPIOREG(0x7C)
 
 /* definitions for each pin bit */
+#define S3C2412_GPIO_SLPCON_LOW	 ( 0x00 )
+#define S3C2412_GPIO_SLPCON_HIGH ( 0x01 )
+#define S3C2412_GPIO_SLPCON_IN   ( 0x02 )
+#define S3C2412_GPIO_SLPCON_PULL ( 0x03 )
+
 #define S3C2412_SLPCON_LOW(x)	( 0x00 << ((x) * 2))
 #define S3C2412_SLPCON_HIGH(x)	( 0x01 << ((x) * 2))
 #define S3C2412_SLPCON_IN(x)	( 0x02 << ((x) * 2))
-- 
cgit v1.2.3-59-g8ed1b


From c6709e8ef5752314c22c75bc7575f9be390e215b Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:20 +0100
Subject: [ARM] 4780/1: S3C2412: Allow for seperate DMA channels for TX and RX

The current S3C24XX DMA code does not allow for an peripheral
that has one channel for RX and another for TX.

This patch adds a per-cpu dma operation to select the transmit
or receive channel, and adds support to the S3C2412 for the
seperate DMA channels for TX and RX.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2412/dma.c        | 39 ++++++++++++++++++++++++++++++++++++--
 arch/arm/plat-s3c24xx/dma.c        | 16 ++++++++++++----
 include/asm-arm/plat-s3c24xx/dma.h |  5 +++++
 3 files changed, 54 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2412/dma.c b/arch/arm/mach-s3c2412/dma.c
index c9cd51439126..1dd864993566 100644
--- a/arch/arm/mach-s3c2412/dma.c
+++ b/arch/arm/mach-s3c2412/dma.c
@@ -40,106 +40,141 @@ static struct s3c24xx_dma_map __initdata s3c2412_dma_mappings[] = {
 	[DMACH_XD0] = {
 		.name		= "xdreq0",
 		.channels	= MAP(S3C2412_DMAREQSEL_XDREQ0),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_XDREQ0),
 	},
 	[DMACH_XD1] = {
 		.name		= "xdreq1",
 		.channels	= MAP(S3C2412_DMAREQSEL_XDREQ1),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_XDREQ1),
 	},
 	[DMACH_SDI] = {
 		.name		= "sdi",
 		.channels	= MAP(S3C2412_DMAREQSEL_SDI),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_SDI),
 		.hw_addr.to	= S3C2410_PA_SDI + S3C2410_SDIDATA,
 		.hw_addr.from	= S3C2410_PA_SDI + S3C2410_SDIDATA,
 	},
 	[DMACH_SPI0] = {
 		.name		= "spi0",
 		.channels	= MAP(S3C2412_DMAREQSEL_SPI0TX),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_SPI0RX),
 		.hw_addr.to	= S3C2410_PA_SPI + S3C2410_SPTDAT,
 		.hw_addr.from	= S3C2410_PA_SPI + S3C2410_SPRDAT,
 	},
 	[DMACH_SPI1] = {
 		.name		= "spi1",
 		.channels	= MAP(S3C2412_DMAREQSEL_SPI1TX),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_SPI1RX),
 		.hw_addr.to	= S3C2410_PA_SPI + S3C2412_SPI1 + S3C2410_SPTDAT,
 		.hw_addr.from	= S3C2410_PA_SPI + S3C2412_SPI1  + S3C2410_SPRDAT,
 	},
 	[DMACH_UART0] = {
 		.name		= "uart0",
 		.channels	= MAP(S3C2412_DMAREQSEL_UART0_0),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_UART0_0),
 		.hw_addr.to	= S3C2410_PA_UART0 + S3C2410_UTXH,
 		.hw_addr.from	= S3C2410_PA_UART0 + S3C2410_URXH,
 	},
 	[DMACH_UART1] = {
 		.name		= "uart1",
 		.channels	= MAP(S3C2412_DMAREQSEL_UART1_0),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_UART1_0),
 		.hw_addr.to	= S3C2410_PA_UART1 + S3C2410_UTXH,
 		.hw_addr.from	= S3C2410_PA_UART1 + S3C2410_URXH,
 	},
       	[DMACH_UART2] = {
 		.name		= "uart2",
 		.channels	= MAP(S3C2412_DMAREQSEL_UART2_0),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_UART2_0),
 		.hw_addr.to	= S3C2410_PA_UART2 + S3C2410_UTXH,
 		.hw_addr.from	= S3C2410_PA_UART2 + S3C2410_URXH,
 	},
 	[DMACH_UART0_SRC2] = {
 		.name		= "uart0",
 		.channels	= MAP(S3C2412_DMAREQSEL_UART0_1),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_UART0_1),
 		.hw_addr.to	= S3C2410_PA_UART0 + S3C2410_UTXH,
 		.hw_addr.from	= S3C2410_PA_UART0 + S3C2410_URXH,
 	},
 	[DMACH_UART1_SRC2] = {
 		.name		= "uart1",
 		.channels	= MAP(S3C2412_DMAREQSEL_UART1_1),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_UART1_1),
 		.hw_addr.to	= S3C2410_PA_UART1 + S3C2410_UTXH,
 		.hw_addr.from	= S3C2410_PA_UART1 + S3C2410_URXH,
 	},
       	[DMACH_UART2_SRC2] = {
 		.name		= "uart2",
 		.channels	= MAP(S3C2412_DMAREQSEL_UART2_1),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_UART2_1),
 		.hw_addr.to	= S3C2410_PA_UART2 + S3C2410_UTXH,
 		.hw_addr.from	= S3C2410_PA_UART2 + S3C2410_URXH,
 	},
 	[DMACH_TIMER] = {
 		.name		= "timer",
 		.channels	= MAP(S3C2412_DMAREQSEL_TIMER),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_TIMER),
 	},
 	[DMACH_I2S_IN] = {
 		.name		= "i2s-sdi",
 		.channels	= MAP(S3C2412_DMAREQSEL_I2SRX),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_I2SRX),
 		.hw_addr.from	= S3C2410_PA_IIS + S3C2412_IISRXD,
 	},
 	[DMACH_I2S_OUT] = {
 		.name		= "i2s-sdo",
 		.channels	= MAP(S3C2412_DMAREQSEL_I2STX),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_I2STX),
 		.hw_addr.to	= S3C2410_PA_IIS + S3C2412_IISTXD,
 	},
 	[DMACH_USB_EP1] = {
 		.name		= "usb-ep1",
 		.channels	= MAP(S3C2412_DMAREQSEL_USBEP1),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_USBEP1),
 	},
 	[DMACH_USB_EP2] = {
 		.name		= "usb-ep2",
 		.channels	= MAP(S3C2412_DMAREQSEL_USBEP2),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_USBEP2),
 	},
 	[DMACH_USB_EP3] = {
 		.name		= "usb-ep3",
 		.channels	= MAP(S3C2412_DMAREQSEL_USBEP3),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_USBEP3),
 	},
 	[DMACH_USB_EP4] = {
 		.name		= "usb-ep4",
 		.channels	= MAP(S3C2412_DMAREQSEL_USBEP4),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_USBEP4),
 	},
 };
 
+static void s3c2412_dma_direction(struct s3c2410_dma_chan *chan,
+				  struct s3c24xx_dma_map *map,
+				  enum s3c2410_dmasrc dir)
+{
+	unsigned long chsel;
+
+	if (dir == S3C2410_DMASRC_HW)
+		chsel = map->channels_rx[0];
+	else
+		chsel = map->channels[0];
+
+	chsel &= ~DMA_CH_VALID;
+	chsel |= S3C2412_DMAREQSEL_HW;
+
+	writel(chsel, chan->regs + S3C2412_DMA_DMAREQSEL);
+}
+
 static void s3c2412_dma_select(struct s3c2410_dma_chan *chan,
 			       struct s3c24xx_dma_map *map)
 {
-	writel(map->channels[0] | S3C2412_DMAREQSEL_HW,
-	       chan->regs + S3C2412_DMA_DMAREQSEL);
+	s3c2412_dma_direction(chan, map, chan->source);
 }
 
 static struct s3c24xx_dma_selection __initdata s3c2412_dma_sel = {
 	.select		= s3c2412_dma_select,
+	.direction	= s3c2412_dma_direction,
 	.dcon_mask	= 0,
 	.map		= s3c2412_dma_mappings,
 	.map_size	= ARRAY_SIZE(s3c2412_dma_mappings),
diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
index aae1b9cbaf44..10ef3995b114 100644
--- a/arch/arm/plat-s3c24xx/dma.c
+++ b/arch/arm/plat-s3c24xx/dma.c
@@ -1184,7 +1184,7 @@ int s3c2410_dma_devconfig(int channel,
 		dma_wrreg(chan, S3C2410_DMA_DIDSTC, (0<<1) | (0<<0));
 
 		chan->addr_reg = dma_regaddr(chan, S3C2410_DMA_DIDST);
-		return 0;
+		break;
 
 	case S3C2410_DMASRC_MEM:
 		/* source is memory */
@@ -1195,11 +1195,19 @@ int s3c2410_dma_devconfig(int channel,
 		dma_wrreg(chan, S3C2410_DMA_DIDSTC, hwcfg & 3);
 
 		chan->addr_reg = dma_regaddr(chan, S3C2410_DMA_DISRC);
-		return 0;
+		break;
+
+	default:
+		printk(KERN_ERR "dma%d: invalid source type (%d)\n",
+		       channel, source);
+
+		return -EINVAL;
 	}
 
-	printk(KERN_ERR "dma%d: invalid source type (%d)\n", channel, source);
-	return -EINVAL;
+	if (dma_sel.direction != NULL)
+		(dma_sel.direction)(chan, chan->map, source);
+
+	return 0;
 }
 
 EXPORT_SYMBOL(s3c2410_dma_devconfig);
diff --git a/include/asm-arm/plat-s3c24xx/dma.h b/include/asm-arm/plat-s3c24xx/dma.h
index 2c59406435e5..c78efe316fc8 100644
--- a/include/asm-arm/plat-s3c24xx/dma.h
+++ b/include/asm-arm/plat-s3c24xx/dma.h
@@ -32,6 +32,7 @@ struct s3c24xx_dma_map {
 	struct s3c24xx_dma_addr  hw_addr;
 
 	unsigned long		 channels[S3C2410_DMA_CHANNELS];
+	unsigned long		 channels_rx[S3C2410_DMA_CHANNELS];
 };
 
 struct s3c24xx_dma_selection {
@@ -41,6 +42,10 @@ struct s3c24xx_dma_selection {
 
 	void	(*select)(struct s3c2410_dma_chan *chan,
 			  struct s3c24xx_dma_map *map);
+
+	void	(*direction)(struct s3c2410_dma_chan *chan,
+			     struct s3c24xx_dma_map *map,
+			     enum s3c2410_dmasrc dir);
 };
 
 extern int s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel);
-- 
cgit v1.2.3-59-g8ed1b


From c58f7a1d36709e50398c05df9419386befef2c59 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:21 +0100
Subject: [ARM] 4781/1: S3C24XX: DMA suspend and resume support

If an DMA channel was active at suspend, then ensure that
it is correctly reconfigured when the system resumes.

Note, the previous policy was for each driver to handle their
own reconfiguration on resume. The policy has been changed to
make the individual driver's job easier.

Signed-off-by: Ben Dooks <ben-linux@flfuf.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/plat-s3c24xx/dma.c        | 26 +++++++++++++++++++++++++-
 include/asm-arm/arch-s3c2410/dma.h |  1 +
 2 files changed, 26 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
index 10ef3995b114..68ce89db17db 100644
--- a/arch/arm/plat-s3c24xx/dma.c
+++ b/arch/arm/plat-s3c24xx/dma.c
@@ -1173,6 +1173,7 @@ int s3c2410_dma_devconfig(int channel,
 
 	chan->source = source;
 	chan->dev_addr = devaddr;
+	chan->hw_cfg = hwcfg;
 
 	switch (source) {
 	case S3C2410_DMASRC_HW:
@@ -1235,6 +1236,10 @@ int s3c2410_dma_getposition(dmach_t channel, dma_addr_t *src, dma_addr_t *dst)
 
 EXPORT_SYMBOL(s3c2410_dma_getposition);
 
+static struct s3c2410_dma_chan *to_dma_chan(struct sys_device *dev)
+{
+	return container_of(dev, struct s3c2410_dma_chan, dev);
+}
 
 /* system device class */
 
@@ -1242,7 +1247,7 @@ EXPORT_SYMBOL(s3c2410_dma_getposition);
 
 static int s3c2410_dma_suspend(struct sys_device *dev, pm_message_t state)
 {
-	struct s3c2410_dma_chan *cp = container_of(dev, struct s3c2410_dma_chan, dev);
+	struct s3c2410_dma_chan *cp = to_dma_chan(dev);
 
 	printk(KERN_DEBUG "suspending dma channel %d\n", cp->number);
 
@@ -1264,6 +1269,24 @@ static int s3c2410_dma_suspend(struct sys_device *dev, pm_message_t state)
 
 static int s3c2410_dma_resume(struct sys_device *dev)
 {
+	struct s3c2410_dma_chan *cp = to_dma_chan(dev);
+	unsigned int no = cp->number | DMACH_LOW_LEVEL;
+
+	/* restore channel's hardware configuration */
+
+	if (!cp->in_use)
+		return 0;
+
+	printk(KERN_INFO "dma%d: restoring configuration\n", cp->number);
+
+	s3c2410_dma_config(no, cp->xfer_unit, cp->dcon);
+	s3c2410_dma_devconfig(no, cp->source, cp->hw_cfg, cp->dev_addr);
+
+	/* re-select the dma source for this channel */
+
+	if (cp->map != NULL)
+		dma_sel.select(cp, cp->map);
+
 	return 0;
 }
 
@@ -1453,6 +1476,7 @@ static struct s3c2410_dma_chan *s3c2410_dma_map_channel(int channel)
 
  found:
 	dmach = &s3c2410_chans[ch];
+	dmach->map = ch_map;
 	dma_chan_map[channel] = dmach;
 
 	/* select the channel */
diff --git a/include/asm-arm/arch-s3c2410/dma.h b/include/asm-arm/arch-s3c2410/dma.h
index c6e8d8f64938..4f291d9b7d93 100644
--- a/include/asm-arm/arch-s3c2410/dma.h
+++ b/include/asm-arm/arch-s3c2410/dma.h
@@ -214,6 +214,7 @@ struct s3c2410_dma_chan {
 	unsigned long		 dev_addr;
 	unsigned long		 load_timeout;
 	unsigned int		 flags;		/* channel flags */
+	unsigned int		 hw_cfg;	/* last hw config */
 
 	struct s3c24xx_dma_map	*map;		/* channel hw maps */
 
-- 
cgit v1.2.3-59-g8ed1b


From bb6d9b56c1d5c1cbff39b7c337c900e2b3d8387a Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:23 +0100
Subject: [ARM] 4783/1: S3C24XX: Add s3c2410_gpio_getpull()

Add the call s3c2410_gpio_getpull() to return the
current state of the pin's pull-up.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/plat-s3c24xx/gpio.c            | 13 +++++++++++++
 include/asm-arm/arch-s3c2410/hardware.h | 12 ++++++++++++
 2 files changed, 25 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/plat-s3c24xx/gpio.c b/arch/arm/plat-s3c24xx/gpio.c
index ec3a09c4d181..7cc6faec25d9 100644
--- a/arch/arm/plat-s3c24xx/gpio.c
+++ b/arch/arm/plat-s3c24xx/gpio.c
@@ -122,6 +122,19 @@ void s3c2410_gpio_pullup(unsigned int pin, unsigned int to)
 
 EXPORT_SYMBOL(s3c2410_gpio_pullup);
 
+int s3c2410_gpio_getpull(unsigned int pin)
+{
+	void __iomem *base = S3C24XX_GPIO_BASE(pin);
+	unsigned long offs = S3C2410_GPIO_OFFSET(pin);
+
+	if (pin < S3C2410_GPIO_BANKB)
+		return -EINVAL;
+
+	return (__raw_readl(base + 0x08) & (1L << offs)) ? 1 : 0;
+}
+
+EXPORT_SYMBOL(s3c2410_gpio_getpull);
+
 void s3c2410_gpio_setpin(unsigned int pin, unsigned int to)
 {
 	void __iomem *base = S3C24XX_GPIO_BASE(pin);
diff --git a/include/asm-arm/arch-s3c2410/hardware.h b/include/asm-arm/arch-s3c2410/hardware.h
index faeaba514ffe..20509e4540f6 100644
--- a/include/asm-arm/arch-s3c2410/hardware.h
+++ b/include/asm-arm/arch-s3c2410/hardware.h
@@ -87,6 +87,18 @@ extern int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on,
 
 extern void s3c2410_gpio_pullup(unsigned int pin, unsigned int to);
 
+/* s3c2410_gpio_getpull
+ *
+ * Read the state of the pull-up on a given pin
+ *
+ * return:
+ *	< 0 => error code
+ *	  0 => enabled
+ *	  1 => disabled
+*/
+
+extern int s3c2410_gpio_getpull(unsigned int pin);
+
 extern void s3c2410_gpio_setpin(unsigned int pin, unsigned int to);
 
 extern unsigned int s3c2410_gpio_getpin(unsigned int pin);
-- 
cgit v1.2.3-59-g8ed1b


From 62feee648ca0ad6e1b54e44e6c8ddb69f225f812 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:24 +0100
Subject: [ARM] 4784/1: S3C24XX: Fix GPIO restore glitches

The core resume code may have caused glitches in the GPIO when
restoring the GPIO state due to the order in which the GPIO registers
were being written.

Change the restore process take into account the state of the
GPIOs on resume and the state the system wants to restore them to.

See the code comments in the patch for more details of the process.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/plat-s3c24xx/pm.c | 247 +++++++++++++++++++++++++++++++++++++++------
 1 file changed, 214 insertions(+), 33 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/plat-s3c24xx/pm.c b/arch/arm/plat-s3c24xx/pm.c
index 4fdb3117744f..bf5581a9aeea 100644
--- a/arch/arm/plat-s3c24xx/pm.c
+++ b/arch/arm/plat-s3c24xx/pm.c
@@ -83,38 +83,39 @@ static struct sleep_save core_save[] = {
 	SAVE_ITEM(S3C2410_REFRESH),
 };
 
-static struct sleep_save gpio_save[] = {
-	SAVE_ITEM(S3C2410_GPACON),
-	SAVE_ITEM(S3C2410_GPADAT),
-
-	SAVE_ITEM(S3C2410_GPBCON),
-	SAVE_ITEM(S3C2410_GPBDAT),
-	SAVE_ITEM(S3C2410_GPBUP),
-
-	SAVE_ITEM(S3C2410_GPCCON),
-	SAVE_ITEM(S3C2410_GPCDAT),
-	SAVE_ITEM(S3C2410_GPCUP),
-
-	SAVE_ITEM(S3C2410_GPDCON),
-	SAVE_ITEM(S3C2410_GPDDAT),
-	SAVE_ITEM(S3C2410_GPDUP),
-
-	SAVE_ITEM(S3C2410_GPECON),
-	SAVE_ITEM(S3C2410_GPEDAT),
-	SAVE_ITEM(S3C2410_GPEUP),
-
-	SAVE_ITEM(S3C2410_GPFCON),
-	SAVE_ITEM(S3C2410_GPFDAT),
-	SAVE_ITEM(S3C2410_GPFUP),
-
-	SAVE_ITEM(S3C2410_GPGCON),
-	SAVE_ITEM(S3C2410_GPGDAT),
-	SAVE_ITEM(S3C2410_GPGUP),
-
-	SAVE_ITEM(S3C2410_GPHCON),
-	SAVE_ITEM(S3C2410_GPHDAT),
-	SAVE_ITEM(S3C2410_GPHUP),
+static struct gpio_sleep {
+	void __iomem	*base;
+	unsigned int	 gpcon;
+	unsigned int	 gpdat;
+	unsigned int	 gpup;
+} gpio_save[] = {
+	[0] = {
+		.base	= S3C2410_GPACON,
+	},
+	[1] = {
+		.base	= S3C2410_GPBCON,
+	},
+	[2] = {
+		.base	= S3C2410_GPCCON,
+	},
+	[3] = {
+		.base	= S3C2410_GPDCON,
+	},
+	[4] = {
+		.base	= S3C2410_GPECON,
+	},
+	[5] = {
+		.base	= S3C2410_GPFCON,
+	},
+	[6] = {
+		.base	= S3C2410_GPGCON,
+	},
+	[7] = {
+		.base	= S3C2410_GPHCON,
+	},
+};
 
+static struct sleep_save misc_save[] = {
 	SAVE_ITEM(S3C2410_DCLKCON),
 };
 
@@ -486,6 +487,184 @@ static void s3c2410_pm_configure_extint(void)
 	}
 }
 
+/* offsets for CON/DAT/UP registers */
+
+#define OFFS_CON	(S3C2410_GPACON - S3C2410_GPACON)
+#define OFFS_DAT	(S3C2410_GPADAT - S3C2410_GPACON)
+#define OFFS_UP		(S3C2410_GPBUP  - S3C2410_GPBCON)
+
+/* s3c2410_pm_save_gpios()
+ *
+ * Save the state of the GPIOs
+ */
+
+static void s3c2410_pm_save_gpios(void)
+{
+	struct gpio_sleep *gps = gpio_save;
+	unsigned int gpio;
+
+	for (gpio = 0; gpio < ARRAY_SIZE(gpio_save); gpio++, gps++) {
+		void __iomem *base = gps->base;
+
+		gps->gpcon = __raw_readl(base + OFFS_CON);
+		gps->gpdat = __raw_readl(base + OFFS_DAT);
+
+		if (gpio > 0)
+			gps->gpup = __raw_readl(base + OFFS_UP);
+
+	}
+}
+
+/* Test whether the given masked+shifted bits of an GPIO configuration
+ * are one of the SFN (special function) modes. */
+
+static inline int is_sfn(unsigned long con)
+{
+	return (con == 2 || con == 3);
+}
+
+/* Test if the given masked+shifted GPIO configuration is an input */
+
+static inline int is_in(unsigned long con)
+{
+	return con == 0;
+}
+
+/* Test if the given masked+shifted GPIO configuration is an output */
+
+static inline int is_out(unsigned long con)
+{
+	return con == 1;
+}
+
+/* s3c2410_pm_restore_gpio()
+ *
+ * Restore one of the GPIO banks that was saved during suspend. This is
+ * not as simple as once thought, due to the possibility of glitches
+ * from the order that the CON and DAT registers are set in.
+ *
+ * The three states the pin can be are {IN,OUT,SFN} which gives us 9
+ * combinations of changes to check. Three of these, if the pin stays
+ * in the same configuration can be discounted. This leaves us with
+ * the following:
+ *
+ * { IN => OUT }  Change DAT first
+ * { IN => SFN }  Change CON first
+ * { OUT => SFN } Change CON first, so new data will not glitch
+ * { OUT => IN }  Change CON first, so new data will not glitch
+ * { SFN => IN }  Change CON first
+ * { SFN => OUT } Change DAT first, so new data will not glitch [1]
+ *
+ * We do not currently deal with the UP registers as these control
+ * weak resistors, so a small delay in change should not need to bring
+ * these into the calculations.
+ *
+ * [1] this assumes that writing to a pin DAT whilst in SFN will set the
+ *     state for when it is next output.
+ */
+
+static void s3c2410_pm_restore_gpio(int index, struct gpio_sleep *gps)
+{
+	void __iomem *base = gps->base;
+	unsigned long gps_gpcon = gps->gpcon;
+	unsigned long gps_gpdat = gps->gpdat;
+	unsigned long old_gpcon;
+	unsigned long old_gpdat;
+	unsigned long old_gpup = 0x0;
+	unsigned long gpcon;
+	int nr;
+
+	old_gpcon = __raw_readl(base + OFFS_CON);
+	old_gpdat = __raw_readl(base + OFFS_DAT);
+
+	if (base == S3C2410_GPACON) {
+		/* GPACON only has one bit per control / data and no PULLUPs.
+		 * GPACON[x] = 0 => Output, 1 => SFN */
+
+		/* first set all SFN bits to SFN */
+
+		gpcon = old_gpcon | gps->gpcon;
+		__raw_writel(gpcon, base + OFFS_CON);
+
+		/* now set all the other bits */
+
+		__raw_writel(gps_gpdat, base + OFFS_DAT);
+		__raw_writel(gps_gpcon, base + OFFS_CON);
+	} else {
+		unsigned long old, new, mask;
+		unsigned long change_mask = 0x0;
+
+		old_gpup = __raw_readl(base + OFFS_UP);
+
+		/* Create a change_mask of all the items that need to have
+		 * their CON value changed before their DAT value, so that
+		 * we minimise the work between the two settings.
+		 */
+
+		for (nr = 0, mask = 0x03; nr < 32; nr += 2, mask <<= 2) {
+			old = (old_gpcon & mask) >> nr;
+			new = (gps_gpcon & mask) >> nr;
+
+			/* If there is no change, then skip */
+
+			if (old == new)
+				continue;
+
+			/* If both are special function, then skip */
+
+			if (is_sfn(old) && is_sfn(new))
+				continue;
+
+			/* Change is IN => OUT, do not change now */
+
+			if (is_in(old) && is_out(new))
+				continue;
+
+			/* Change is SFN => OUT, do not change now */
+
+			if (is_sfn(old) && is_out(new))
+				continue;
+
+			/* We should now be at the case of IN=>SFN,
+			 * OUT=>SFN, OUT=>IN, SFN=>IN. */
+
+			change_mask |= mask;
+		}
+
+		/* Write the new CON settings */
+
+		gpcon = old_gpcon & ~change_mask;
+		gpcon |= gps_gpcon & change_mask;
+
+		__raw_writel(gpcon, base + OFFS_CON);
+
+		/* Now change any items that require DAT,CON */
+
+		__raw_writel(gps_gpdat, base + OFFS_DAT);
+		__raw_writel(gps_gpcon, base + OFFS_CON);
+		__raw_writel(gps->gpup, base + OFFS_UP);
+	}
+
+	DBG("GPIO[%d] CON %08lx => %08lx, DAT %08lx => %08lx\n",
+	    index, old_gpcon, gps_gpcon, old_gpdat, gps_gpdat);
+}
+
+
+/** s3c2410_pm_restore_gpios()
+ *
+ * Restore the state of the GPIOs
+ */
+
+static void s3c2410_pm_restore_gpios(void)
+{
+	struct gpio_sleep *gps = gpio_save;
+	int gpio;
+
+	for (gpio = 0; gpio < ARRAY_SIZE(gpio_save); gpio++, gps++) {
+		s3c2410_pm_restore_gpio(gpio, gps);
+	}
+}
+
 void (*pm_cpu_prep)(void);
 void (*pm_cpu_sleep)(void);
 
@@ -535,7 +714,8 @@ static int s3c2410_pm_enter(suspend_state_t state)
 
 	/* save all necessary core registers not covered by the drivers */
 
-	s3c2410_pm_do_save(gpio_save, ARRAY_SIZE(gpio_save));
+	s3c2410_pm_save_gpios();
+	s3c2410_pm_do_save(misc_save, ARRAY_SIZE(misc_save));
 	s3c2410_pm_do_save(core_save, ARRAY_SIZE(core_save));
 	s3c2410_pm_do_save(uart_save, ARRAY_SIZE(uart_save));
 
@@ -585,8 +765,9 @@ static int s3c2410_pm_enter(suspend_state_t state)
 	/* restore the system state */
 
 	s3c2410_pm_do_restore_core(core_save, ARRAY_SIZE(core_save));
-	s3c2410_pm_do_restore(gpio_save, ARRAY_SIZE(gpio_save));
+	s3c2410_pm_do_restore(misc_save, ARRAY_SIZE(misc_save));
 	s3c2410_pm_do_restore(uart_save, ARRAY_SIZE(uart_save));
+	s3c2410_pm_restore_gpios();
 
 	s3c2410_pm_debug_init();
 
-- 
cgit v1.2.3-59-g8ed1b


From a07c438faf952643f79983fb16a10f111c9df0df Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:27 +0100
Subject: [ARM] 4787/1: S3C24XX: s3c2410_dma_request() should return the
 allocated channel number

The s3c2410_dma_request() function should return the channel allocated
instead of zero for success.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/plat-s3c24xx/dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
index 68ce89db17db..9785983dfbae 100644
--- a/arch/arm/plat-s3c24xx/dma.c
+++ b/arch/arm/plat-s3c24xx/dma.c
@@ -787,7 +787,7 @@ int s3c2410_dma_request(unsigned int channel,
 
 	pr_debug("%s: channel initialised, %p\n", __FUNCTION__, chan);
 
-	return 0;
+	return chan->number | DMACH_LOW_LEVEL;
 }
 
 EXPORT_SYMBOL(s3c2410_dma_request);
-- 
cgit v1.2.3-59-g8ed1b


From 046c9d321fd5f5ce1c89c9d0f1a519c26a096486 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:28 +0100
Subject: [ARM] 4788/1: S3C24XX: Fix paramet to s3c2410_dma_ctrl if
 S3C2410_DMAF_AUTOSTART used.

Fix the channel parameter to s3c2410_dma_ctrl() in s3c2410_dma_enqueue()
if the S3C2410_DMAF_AUTOSTART is set on the channel.

Spotted by Steven Ryu at Samsung.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/plat-s3c24xx/dma.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
index 9785983dfbae..ac9ff1666fcc 100644
--- a/arch/arm/plat-s3c24xx/dma.c
+++ b/arch/arm/plat-s3c24xx/dma.c
@@ -525,7 +525,8 @@ int s3c2410_dma_enqueue(unsigned int channel, void *id,
 		}
 	} else if (chan->state == S3C2410_DMA_IDLE) {
 		if (chan->flags & S3C2410_DMAF_AUTOSTART) {
-			s3c2410_dma_ctrl(chan->number, S3C2410_DMAOP_START);
+			s3c2410_dma_ctrl(chan->number | DMACH_LOW_LEVEL,
+					 S3C2410_DMAOP_START);
 		}
 	}
 
-- 
cgit v1.2.3-59-g8ed1b


From cca851d7b4d87f3a644d3381930dc737890bd9ac Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:30 +0100
Subject: [ARM] 4790/1: S3C2412: Fix parent selection for msysclk.

The msysclk clock was checking for the wrong PLL for the
parent in s3c2412_setparent_msysclk(), trying the UPLL instead
of the MPLL output.

Also ensure the mpll and fclks are at the same rate at init time.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2412/clock.c   | 2 +-
 arch/arm/mach-s3c2412/s3c2412.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2412/clock.c b/arch/arm/mach-s3c2412/clock.c
index 42ccb5eb6042..0f752500cd5b 100644
--- a/arch/arm/mach-s3c2412/clock.c
+++ b/arch/arm/mach-s3c2412/clock.c
@@ -217,7 +217,7 @@ static int s3c2412_setparent_msysclk(struct clk *clk, struct clk *parent)
 
 	if (parent == &clk_mdivclk)
 		clksrc &= ~S3C2412_CLKSRC_MSYSCLK_MPLL;
-	else if (parent == &clk_upll)
+	else if (parent == &clk_mpll)
 		clksrc |= S3C2412_CLKSRC_MSYSCLK_MPLL;
 	else
 		return -EINVAL;
diff --git a/arch/arm/mach-s3c2412/s3c2412.c b/arch/arm/mach-s3c2412/s3c2412.c
index 265cd3f567a3..abf1599c9f97 100644
--- a/arch/arm/mach-s3c2412/s3c2412.c
+++ b/arch/arm/mach-s3c2412/s3c2412.c
@@ -168,6 +168,8 @@ void __init s3c2412_init_clocks(int xtal)
 
 	fclk = s3c2410_get_pll(__raw_readl(S3C2410_MPLLCON), xtal*2);
 
+	clk_mpll.rate = fclk;
+
 	tmp = __raw_readl(S3C2410_CLKDIVN);
 
 	/* work out clock scalings */
-- 
cgit v1.2.3-59-g8ed1b


From ddd870bdb722280bd5af1682d82557d1787ac90c Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:31 +0100
Subject: [ARM] 4791/1: S3C2412: Make fclk a parent of msysclk

In the S3C2412 fclk is derived from msysclk, not straight from
the MPLL output. Set clk_f.parent appropriately.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2412/clock.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2412/clock.c b/arch/arm/mach-s3c2412/clock.c
index 0f752500cd5b..2697a65ba727 100644
--- a/arch/arm/mach-s3c2412/clock.c
+++ b/arch/arm/mach-s3c2412/clock.c
@@ -684,6 +684,8 @@ int __init s3c2412_baseclk_add(void)
 	clk_usb_bus.parent = &clk_usbsrc;
 	clk_usb_bus.rate = 0x0;
 
+	clk_f.parent = &clk_msysclk;
+
 	s3c2412_clk_initparents();
 
 	for (ptr = 0; ptr < ARRAY_SIZE(clks); ptr++) {
-- 
cgit v1.2.3-59-g8ed1b


From c27cb681ac1598352569f75cb19850a12b7ef102 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:33 +0100
Subject: [ARM] 4793/1: S3C24XX: Add IRQ->GPIO pin mapping function

Add the reverse of s3c2410_gpio_getirq to convert
a IRQ  number into a GPIO pin number.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/plat-s3c24xx/gpio.c            | 16 ++++++++++++++++
 include/asm-arm/arch-s3c2410/hardware.h | 11 +++++++++++
 2 files changed, 27 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/plat-s3c24xx/gpio.c b/arch/arm/plat-s3c24xx/gpio.c
index 7cc6faec25d9..ee99dcc7f0bd 100644
--- a/arch/arm/plat-s3c24xx/gpio.c
+++ b/arch/arm/plat-s3c24xx/gpio.c
@@ -199,3 +199,19 @@ int s3c2410_gpio_getirq(unsigned int pin)
 }
 
 EXPORT_SYMBOL(s3c2410_gpio_getirq);
+
+int s3c2410_gpio_irq2pin(unsigned int irq)
+{
+	if (irq >= IRQ_EINT0 && irq <= IRQ_EINT3)
+		return S3C2410_GPF0 + (irq - IRQ_EINT0);
+
+	if (irq >= IRQ_EINT4 && irq <= IRQ_EINT7)
+		return S3C2410_GPF4 + (irq - IRQ_EINT4);
+
+	if (irq >= IRQ_EINT8 && irq <= IRQ_EINT23)
+		return S3C2410_GPG0 + (irq - IRQ_EINT8);
+
+	return -EINVAL;
+}
+
+EXPORT_SYMBOL(s3c2410_gpio_irq2pin);
diff --git a/include/asm-arm/arch-s3c2410/hardware.h b/include/asm-arm/arch-s3c2410/hardware.h
index 20509e4540f6..29592c3ebf22 100644
--- a/include/asm-arm/arch-s3c2410/hardware.h
+++ b/include/asm-arm/arch-s3c2410/hardware.h
@@ -50,6 +50,17 @@ extern unsigned int s3c2410_gpio_getcfg(unsigned int pin);
 
 extern int s3c2410_gpio_getirq(unsigned int pin);
 
+/* s3c2410_gpio_irq2pin
+ *
+ * turn the given irq number into the corresponding GPIO number
+ *
+ * returns:
+ *	< 0 = no pin
+ *	>=0 = gpio pin number
+*/
+
+extern int s3c2410_gpio_irq2pin(unsigned int irq);
+
 #ifdef CONFIG_CPU_S3C2400
 
 extern int s3c2400_gpio_getirq(unsigned int pin);
-- 
cgit v1.2.3-59-g8ed1b


From 3a38e4be76e86c7b94c36dc8f3ce489987da24e4 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:34 +0100
Subject: [ARM] 4794/1: S3C24XX: Comonise S3C2440 and S3C2442 clock code

Merge together the bits of the S3C2440 and S3C2442 clock code
that can be.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2440/clock.c         |  22 +-------
 arch/arm/mach-s3c2442/clock.c         |  22 +-------
 arch/arm/plat-s3c24xx/Makefile        |   1 +
 arch/arm/plat-s3c24xx/s3c244x-clock.c | 100 ++++++++++++++++++++++++++++++++++
 4 files changed, 103 insertions(+), 42 deletions(-)
 create mode 100644 arch/arm/plat-s3c24xx/s3c244x-clock.c

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2440/clock.c b/arch/arm/mach-s3c2440/clock.c
index 79e2ea4adaf3..184d804934c9 100644
--- a/arch/arm/mach-s3c2440/clock.c
+++ b/arch/arm/mach-s3c2440/clock.c
@@ -111,14 +111,9 @@ static struct clk s3c2440_clk_ac97 = {
 
 static int s3c2440_clk_add(struct sys_device *sysdev)
 {
-	unsigned long camdivn = __raw_readl(S3C2440_CAMDIVN);
-	unsigned long clkdivn;
+	struct clk *clock_upll;
 	struct clk *clock_h;
 	struct clk *clock_p;
-	struct clk *clock_upll;
-
-	printk("S3C2440: Clock Support, DVS %s\n",
-	       (camdivn & S3C2440_CAMDIVN_DVSEN) ? "on" : "off");
 
 	clock_p = clk_get(NULL, "pclk");
 	clock_h = clk_get(NULL, "hclk");
@@ -129,21 +124,6 @@ static int s3c2440_clk_add(struct sys_device *sysdev)
 		return -EINVAL;
 	}
 
-	/* check rate of UPLL, and if it is near 96MHz, then change
-	 * to using half the UPLL rate for the system */
-
-	if (clk_get_rate(clock_upll) > (94 * MHZ)) {
-		clk_usb_bus.rate = clk_get_rate(clock_upll) / 2;
-
-		mutex_lock(&clocks_mutex);
-
-		clkdivn = __raw_readl(S3C2410_CLKDIVN);
-		clkdivn |= S3C2440_CLKDIVN_UCLK;
-		__raw_writel(clkdivn, S3C2410_CLKDIVN);
-
-		mutex_unlock(&clocks_mutex);
-	}
-
 	s3c2440_clk_cam.parent = clock_h;
 	s3c2440_clk_ac97.parent = clock_p;
 	s3c2440_clk_cam_upll.parent = clock_upll;
diff --git a/arch/arm/mach-s3c2442/clock.c b/arch/arm/mach-s3c2442/clock.c
index 5b9e830ac4d3..2d030d439fe9 100644
--- a/arch/arm/mach-s3c2442/clock.c
+++ b/arch/arm/mach-s3c2442/clock.c
@@ -115,14 +115,9 @@ static struct clk s3c2442_clk_cam_upll = {
 
 static int s3c2442_clk_add(struct sys_device *sysdev)
 {
-	unsigned long camdivn = __raw_readl(S3C2440_CAMDIVN);
-	unsigned long clkdivn;
+	struct clk *clock_upll;
 	struct clk *clock_h;
 	struct clk *clock_p;
-	struct clk *clock_upll;
-
-	printk("S3C2442: Clock Support, DVS %s\n",
-	       (camdivn & S3C2440_CAMDIVN_DVSEN) ? "on" : "off");
 
 	clock_p = clk_get(NULL, "pclk");
 	clock_h = clk_get(NULL, "hclk");
@@ -133,21 +128,6 @@ static int s3c2442_clk_add(struct sys_device *sysdev)
 		return -EINVAL;
 	}
 
-	/* check rate of UPLL, and if it is near 96MHz, then change
-	 * to using half the UPLL rate for the system */
-
-	if (clk_get_rate(clock_upll) > (94 * MHZ)) {
-		clk_usb_bus.rate = clk_get_rate(clock_upll) / 2;
-
-		mutex_lock(&clocks_mutex);
-
-		clkdivn = __raw_readl(S3C2410_CLKDIVN);
-		clkdivn |= S3C2440_CLKDIVN_UCLK;
-		__raw_writel(clkdivn, S3C2410_CLKDIVN);
-
-		mutex_unlock(&clocks_mutex);
-	}
-
 	s3c2442_clk_cam.parent = clock_h;
 	s3c2442_clk_cam_upll.parent = clock_upll;
 
diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
index 8e5ccaa1f03c..131d20237dd7 100644
--- a/arch/arm/plat-s3c24xx/Makefile
+++ b/arch/arm/plat-s3c24xx/Makefile
@@ -23,6 +23,7 @@ obj-y				+= clock.o
 
 obj-$(CONFIG_CPU_S3C244X)	+= s3c244x.o
 obj-$(CONFIG_CPU_S3C244X)	+= s3c244x-irq.o
+obj-$(CONFIG_CPU_S3C244X)	+= s3c244x-clock.o
 obj-$(CONFIG_PM_SIMTEC)		+= pm-simtec.o
 obj-$(CONFIG_PM)		+= pm.o
 obj-$(CONFIG_PM)		+= sleep.o
diff --git a/arch/arm/plat-s3c24xx/s3c244x-clock.c b/arch/arm/plat-s3c24xx/s3c244x-clock.c
new file mode 100644
index 000000000000..0bf5e7fbb2bf
--- /dev/null
+++ b/arch/arm/plat-s3c24xx/s3c244x-clock.c
@@ -0,0 +1,100 @@
+/* linux/arch/arm/plat-s3c24xx/s3c24xx-clock.c
+ *
+ * Copyright (c) 2004-2005,2008 Simtec Electronics
+ *	http://armlinux.simtec.co.uk/
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2440/S3C2442 Common clock support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/sysdev.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/mutex.h>
+#include <linux/clk.h>
+
+#include <asm/hardware.h>
+#include <asm/atomic.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+
+#include <asm/arch/regs-clock.h>
+
+#include <asm/plat-s3c24xx/clock.h>
+#include <asm/plat-s3c24xx/cpu.h>
+
+static int s3c244x_clk_add(struct sys_device *sysdev)
+{
+	unsigned long camdivn = __raw_readl(S3C2440_CAMDIVN);
+	unsigned long clkdivn;
+	struct clk *clock_upll;
+
+	printk("S3C244X: Clock Support, DVS %s\n",
+	       (camdivn & S3C2440_CAMDIVN_DVSEN) ? "on" : "off");
+
+	clock_upll = clk_get(NULL, "upll");
+	if (IS_ERR(clock_upll)) {
+		printk(KERN_ERR "S3C244X: Failed to get upll clock\n");
+		return -ENOENT;
+	}
+
+	/* check rate of UPLL, and if it is near 96MHz, then change
+	 * to using half the UPLL rate for the system */
+
+	if (clk_get_rate(clock_upll) > (94 * MHZ)) {
+		clk_usb_bus.rate = clk_get_rate(clock_upll) / 2;
+
+		mutex_lock(&clocks_mutex);
+
+		clkdivn = __raw_readl(S3C2410_CLKDIVN);
+		clkdivn |= S3C2440_CLKDIVN_UCLK;
+		__raw_writel(clkdivn, S3C2410_CLKDIVN);
+
+		mutex_unlock(&clocks_mutex);
+	}
+
+	return 0;
+}
+
+static struct sysdev_driver s3c2440_clk_driver = {
+	.add		= s3c244x_clk_add,
+};
+
+static int s3c2440_clk_init(void)
+{
+	return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_clk_driver);
+}
+
+arch_initcall(s3c2440_clk_init);
+
+static struct sysdev_driver s3c2442_clk_driver = {
+	.add		= s3c244x_clk_add,
+};
+
+static int s3c2442_clk_init(void)
+{
+	return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_clk_driver);
+}
+
+arch_initcall(s3c2442_clk_init);
-- 
cgit v1.2.3-59-g8ed1b


From 06dbbd69f94e97751782ef6f1a9bb19da60efd1c Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:35 +0100
Subject: [ARM] 4795/1: S3C244X: Add armclk and setparent call

Add armclk to the supported clocks on the S3C2440 and S3C2442 to
better represent the DVS state which controls whether FCLK or HCLK
is fed to the ARM core.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/plat-s3c24xx/s3c244x-clock.c | 37 +++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/plat-s3c24xx/s3c244x-clock.c b/arch/arm/plat-s3c24xx/s3c244x-clock.c
index 0bf5e7fbb2bf..faf3e0f9f4e2 100644
--- a/arch/arm/plat-s3c24xx/s3c244x-clock.c
+++ b/arch/arm/plat-s3c24xx/s3c244x-clock.c
@@ -44,15 +44,52 @@
 #include <asm/plat-s3c24xx/clock.h>
 #include <asm/plat-s3c24xx/cpu.h>
 
+static int s3c2440_setparent_armclk(struct clk *clk, struct clk *parent)
+{
+	unsigned long camdivn;
+	unsigned long dvs;
+
+	if (parent == &clk_f)
+		dvs = 0;
+	else if (parent == &clk_h)
+		dvs = S3C2440_CAMDIVN_DVSEN;
+	else
+		return -EINVAL;
+
+	clk->parent = parent;
+
+	camdivn  = __raw_readl(S3C2440_CAMDIVN);
+	camdivn &= ~S3C2440_CAMDIVN_DVSEN;
+	camdivn |= dvs;
+	__raw_writel(camdivn, S3C2440_CAMDIVN);
+
+	return 0;
+}
+
+static struct clk clk_arm = {
+	.name		= "armclk",
+	.id		= -1,
+	.set_parent	= s3c2440_setparent_armclk,
+};
+
 static int s3c244x_clk_add(struct sys_device *sysdev)
 {
 	unsigned long camdivn = __raw_readl(S3C2440_CAMDIVN);
 	unsigned long clkdivn;
 	struct clk *clock_upll;
+	int ret;
 
 	printk("S3C244X: Clock Support, DVS %s\n",
 	       (camdivn & S3C2440_CAMDIVN_DVSEN) ? "on" : "off");
 
+	clk_arm.parent = (camdivn & S3C2440_CAMDIVN_DVSEN) ? &clk_h : &clk_f;
+
+	ret = s3c24xx_register_clock(&clk_arm);
+	if (ret < 0) {
+		printk(KERN_ERR "S3C24XX: Failed to add armclk (%d)\n", ret);
+		return ret;
+	}
+
 	clock_upll = clk_get(NULL, "upll");
 	if (IS_ERR(clock_upll)) {
 		printk(KERN_ERR "S3C244X: Failed to get upll clock\n");
-- 
cgit v1.2.3-59-g8ed1b


From 42d71c44d5fc09ae47783b7e15fe0d6b60711230 Mon Sep 17 00:00:00 2001
From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Wed, 2 Jan 2008 14:27:59 +0800
Subject: CRIS: Remove 'TOPDIR' from Makefiles

This patch removes TOPDIR from Cris Makefiles.

Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Andreas Schwab <schwab@suse.de>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
---
 arch/cris/arch-v32/boot/compressed/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/cris/arch-v32/boot/compressed/Makefile b/arch/cris/arch-v32/boot/compressed/Makefile
index 9f77eda914ba..609692f9d5eb 100644
--- a/arch/cris/arch-v32/boot/compressed/Makefile
+++ b/arch/cris/arch-v32/boot/compressed/Makefile
@@ -7,7 +7,7 @@
 target = $(target_compressed_dir)
 src    = $(src_compressed_dir)
 
-CC = gcc-cris -mlinux -march=v32 -I $(TOPDIR)/include
+CC = gcc-cris -mlinux -march=v32 $(LINUXINCLUDE)
 CFLAGS = -O2
 LD = gcc-cris -mlinux -march=v32 -nostdlib
 OBJCOPY = objcopy-cris
-- 
cgit v1.2.3-59-g8ed1b


From abee8ed09a2093299673400a9cd3882f21e8e767 Mon Sep 17 00:00:00 2001
From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Tue, 1 Jan 2008 22:00:04 +0800
Subject: FRV: Drop 'TOPDIR' from Makefiles

This patch drops TOPDIR from frv Makefiles.

Cc: David Howells <dhowells@redhat.com>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
 arch/frv/boot/Makefile | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/frv/boot/Makefile b/arch/frv/boot/Makefile
index dc6f03824423..6ae3254da019 100644
--- a/arch/frv/boot/Makefile
+++ b/arch/frv/boot/Makefile
@@ -10,7 +10,7 @@
 
 targets := Image zImage bootpImage
 
-SYSTEM	=$(TOPDIR)/$(LINUX)
+SYSTEM	=$(LINUX)
 
 ZTEXTADDR	 = 0x02080000
 PARAMS_PHYS	 = 0x0207c000
@@ -45,7 +45,7 @@ zImage:	$(CONFIGURE) compressed/$(LINUX)
 bootpImage: bootp/bootp
 	$(OBJCOPY) -O binary -R .note -R .comment -S bootp/bootp $@
 
-compressed/$(LINUX): $(TOPDIR)/$(LINUX) dep
+compressed/$(LINUX): $(LINUX) dep
 	@$(MAKE) -C compressed $(LINUX)
 
 bootp/bootp: zImage initrd
@@ -59,10 +59,10 @@ initrd:
 # installation
 #
 install: $(CONFIGURE) Image
-	sh ./install.sh $(KERNELRELEASE) Image $(TOPDIR)/System.map "$(INSTALL_PATH)"
+	sh ./install.sh $(KERNELRELEASE) Image System.map "$(INSTALL_PATH)"
 
 zinstall: $(CONFIGURE) zImage
-	sh ./install.sh $(KERNELRELEASE) zImage $(TOPDIR)/System.map "$(INSTALL_PATH)"
+	sh ./install.sh $(KERNELRELEASE) zImage System.map "$(INSTALL_PATH)"
 
 #
 # miscellany
-- 
cgit v1.2.3-59-g8ed1b


From 01ba2bdc6b639764745ff678caf3fb9e5bcd745a Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Sun, 20 Jan 2008 14:15:03 +0100
Subject: all archs: consolidate init and exit sections in vmlinux.lds.h

This patch consolidate all definitions of .init.text, .init.data
and .exit.text, .exit.data section definitions in
the generic vmlinux.lds.h.

This is a preparational patch - alone it does not buy
us much good.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
 arch/alpha/kernel/vmlinux.lds.S     |  8 ++++----
 arch/arm/kernel/vmlinux.lds.S       | 10 +++++-----
 arch/avr32/kernel/vmlinux.lds.S     |  8 ++++----
 arch/blackfin/kernel/vmlinux.lds.S  |  8 ++++----
 arch/cris/arch-v10/vmlinux.lds.S    |  8 ++++----
 arch/cris/arch-v32/vmlinux.lds.S    |  8 ++++----
 arch/frv/kernel/vmlinux.lds.S       | 14 +++++++-------
 arch/h8300/kernel/vmlinux.lds.S     |  8 ++++----
 arch/ia64/kernel/vmlinux.lds.S      |  8 ++++----
 arch/m32r/kernel/vmlinux.lds.S      | 12 ++++++------
 arch/m68k/kernel/vmlinux-std.lds    |  8 ++++----
 arch/m68k/kernel/vmlinux-sun3.lds   |  8 ++++----
 arch/m68knommu/kernel/vmlinux.lds.S |  8 ++++----
 arch/mips/kernel/vmlinux.lds.S      |  8 ++++----
 arch/parisc/kernel/vmlinux.lds.S    |  8 ++++----
 arch/powerpc/kernel/vmlinux.lds.S   | 10 ++++++----
 arch/ppc/kernel/vmlinux.lds.S       |  8 ++++----
 arch/s390/kernel/vmlinux.lds.S      |  8 ++++----
 arch/sh/kernel/vmlinux_32.lds.S     |  8 ++++----
 arch/sh/kernel/vmlinux_64.lds.S     |  8 ++++----
 arch/sparc/kernel/vmlinux.lds.S     |  8 ++++----
 arch/sparc64/kernel/vmlinux.lds.S   |  8 ++++----
 arch/um/kernel/dyn.lds.S            |  4 ++--
 arch/um/kernel/uml.lds.S            |  4 ++--
 arch/v850/kernel/vmlinux.lds.S      | 10 +++++-----
 arch/x86/kernel/vmlinux_32.lds.S    | 14 ++++++++++----
 arch/x86/kernel/vmlinux_64.lds.S    | 19 +++++++++++++------
 arch/xtensa/kernel/vmlinux.lds.S    |  9 +++++----
 include/asm-generic/vmlinux.lds.h   |  7 +++++++
 29 files changed, 140 insertions(+), 117 deletions(-)

(limited to 'arch')

diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S
index 55c05b511f4c..f13249be17c5 100644
--- a/arch/alpha/kernel/vmlinux.lds.S
+++ b/arch/alpha/kernel/vmlinux.lds.S
@@ -46,11 +46,11 @@ SECTIONS
 	__init_begin = .;
 	.init.text : {
 		_sinittext = .;
-		*(.init.text)
+		INIT_TEXT
 		_einittext = .;
 	}
 	.init.data : {
-		*(.init.data)
+		INIT_DATA
 	}
 
 	. = ALIGN(16);
@@ -136,8 +136,8 @@ SECTIONS
 
 	/* Sections to be discarded */
 	/DISCARD/ : {
-		*(.exit.text)
-		*(.exit.data)
+		EXIT_TEXT
+		EXIT_DATA
 		*(.exitcall.exit)
 	}
 
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 30f732c7fdb5..4898bdcfe7dd 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -30,7 +30,7 @@ SECTIONS
 	}
 
 	.init : {			/* Init code and data		*/
-			*(.init.text)
+			INIT_TEXT
 		_einittext = .;
 		__proc_info_begin = .;
 			*(.proc.info.init)
@@ -70,15 +70,15 @@ SECTIONS
 		__per_cpu_end = .;
 #ifndef CONFIG_XIP_KERNEL
 		__init_begin = _stext;
-		*(.init.data)
+		INIT_DATA
 		. = ALIGN(4096);
 		__init_end = .;
 #endif
 	}
 
 	/DISCARD/ : {			/* Exit code and data		*/
-		*(.exit.text)
-		*(.exit.data)
+		EXIT_TEXT
+		EXIT_DATA
 		*(.exitcall.exit)
 #ifndef CONFIG_MMU
 		*(.fixup)
@@ -130,7 +130,7 @@ SECTIONS
 #ifdef CONFIG_XIP_KERNEL
 		. = ALIGN(4096);
 		__init_begin = .;
-		*(.init.data)
+		INIT_DATA
 		. = ALIGN(4096);
 		__init_end = .;
 #endif
diff --git a/arch/avr32/kernel/vmlinux.lds.S b/arch/avr32/kernel/vmlinux.lds.S
index 11f08e35a2eb..481cfd40c053 100644
--- a/arch/avr32/kernel/vmlinux.lds.S
+++ b/arch/avr32/kernel/vmlinux.lds.S
@@ -27,19 +27,19 @@ SECTIONS
 		__init_begin = .;
 			_sinittext = .;
 			*(.text.reset)
-			*(.init.text)
+			INIT_TEXT
 			/*
 			 * .exit.text is discarded at runtime, not
 			 * link time, to deal with references from
 			 * __bug_table
 			 */
-			*(.exit.text)
+			EXIT_TEXT
 			_einittext = .;
 		. = ALIGN(4);
 		__tagtable_begin = .;
 			*(.taglist.init)
 		__tagtable_end = .;
-			*(.init.data)
+			INIT_DATA
 		. = ALIGN(16);
 		__setup_start = .;
 			*(.init.setup)
@@ -135,7 +135,7 @@ SECTIONS
 	 * thrown away, as cleanup code is never called unless it's a module.
 	 */
 	/DISCARD/       	: {
-		*(.exit.data)
+		EXIT_DATA
 		*(.exitcall.exit)
 	}
 
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index 9b75bc83c71f..858722421b40 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -91,13 +91,13 @@ SECTIONS
 	{
 		. = ALIGN(PAGE_SIZE);
 		__sinittext = .;
-		*(.init.text)
+		INIT_TEXT
 		__einittext = .;
 	}
 	.init.data :
 	{
 		. = ALIGN(16);
-		*(.init.data)
+		INIT_DATA
 	}
 	.init.setup :
 	{
@@ -198,8 +198,8 @@ SECTIONS
 
 	/DISCARD/ :
 	{
-		*(.exit.text)
-		*(.exit.data)
+		EXIT_TEXT
+		EXIT_DATA
 		*(.exitcall.exit)
 	}
 }
diff --git a/arch/cris/arch-v10/vmlinux.lds.S b/arch/cris/arch-v10/vmlinux.lds.S
index 97a7876ed681..93c9f0ea286b 100644
--- a/arch/cris/arch-v10/vmlinux.lds.S
+++ b/arch/cris/arch-v10/vmlinux.lds.S
@@ -57,10 +57,10 @@ SECTIONS
   	__init_begin = .;
 	.init.text : { 
 		   _sinittext = .;
-		   *(.init.text)
+		   INIT_TEXT
 		   _einittext = .;
 	}
-  	.init.data : { *(.init.data) }
+	.init.data : { INIT_DATA }
   	. = ALIGN(16);
   	__setup_start = .;
   	.init.setup : { *(.init.setup) }
@@ -109,8 +109,8 @@ SECTIONS
 
 	/* Sections to be discarded */
   	/DISCARD/ : {
-        	*(.text.exit)
-        	*(.data.exit)
+		EXIT_TEXT
+		EXIT_DATA
 		*(.exitcall.exit)
         }
 
diff --git a/arch/cris/arch-v32/vmlinux.lds.S b/arch/cris/arch-v32/vmlinux.lds.S
index b076c134c0bb..fead8c59ea63 100644
--- a/arch/cris/arch-v32/vmlinux.lds.S
+++ b/arch/cris/arch-v32/vmlinux.lds.S
@@ -61,10 +61,10 @@ SECTIONS
   	__init_begin = .;
 	.init.text : {
 		   _sinittext = .;
-		   *(.init.text)
+		   INIT_TEXT
 		   _einittext = .;
 	}
-  	.init.data : { *(.init.data) }
+	.init.data : { INIT_DATA }
   	. = ALIGN(16);
   	__setup_start = .;
   	.init.setup : { *(.init.setup) }
@@ -124,8 +124,8 @@ SECTIONS
 
 	/* Sections to be discarded */
   	/DISCARD/ : {
-        	*(.text.exit)
-        	*(.data.exit)
+		EXIT_TEXT
+		EXIT_DATA
 		*(.exitcall.exit)
         }
 
diff --git a/arch/frv/kernel/vmlinux.lds.S b/arch/frv/kernel/vmlinux.lds.S
index a17a81d58bf6..f42b328b1dd0 100644
--- a/arch/frv/kernel/vmlinux.lds.S
+++ b/arch/frv/kernel/vmlinux.lds.S
@@ -28,14 +28,14 @@ SECTIONS
   .init.text : {
 	*(.text.head)
 #ifndef CONFIG_DEBUG_INFO
-	*(.init.text)
-	*(.exit.text)
-	*(.exit.data)
+	INIT_TEXT
+	EXIT_TEXT
+	EXIT_DATA
 	*(.exitcall.exit)
 #endif
   }
   _einittext = .;
-  .init.data : { *(.init.data) }
+  .init.data : { INIT_DATA }
 
   . = ALIGN(8);
   __setup_start = .;
@@ -106,8 +106,8 @@ SECTIONS
 	LOCK_TEXT
 #ifdef CONFIG_DEBUG_INFO
 	*(
-	.init.text
-	.exit.text
+	INIT_TEXT
+	EXIT_TEXT
 	.exitcall.exit
 	)
 #endif
@@ -138,7 +138,7 @@ SECTIONS
   .data : {			/* Data */
 	DATA_DATA
 	*(.data.*)
-	*(.exit.data)
+	EXIT_DATA
 	CONSTRUCTORS
 	}
 
diff --git a/arch/h8300/kernel/vmlinux.lds.S b/arch/h8300/kernel/vmlinux.lds.S
index a2e72d495551..43a87b9085b6 100644
--- a/arch/h8300/kernel/vmlinux.lds.S
+++ b/arch/h8300/kernel/vmlinux.lds.S
@@ -110,9 +110,9 @@ SECTIONS
 	. = ALIGN(0x4) ;
 	___init_begin = .;
 	__sinittext = .; 
-		*(.init.text)
+		INIT_TEXT
 	__einittext = .; 
-		*(.init.data)
+		INIT_DATA
 	. = ALIGN(0x4) ;
 	___setup_start = .;
 		*(.init.setup)
@@ -124,8 +124,8 @@ SECTIONS
 	___con_initcall_start = .;
 		*(.con_initcall.init)
 	___con_initcall_end = .;
-		*(.exit.text)
-		*(.exit.data)
+		EXIT_TEXT
+		EXIT_DATA
 #if defined(CONFIG_BLK_DEV_INITRD)
 		. = ALIGN(4);
 	___initramfs_start = .;
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 757e419ebcf8..80622acc95de 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -27,8 +27,8 @@ SECTIONS
 {
   /* Sections to be discarded */
   /DISCARD/ : {
-	*(.exit.text)
-	*(.exit.data)
+	EXIT_TEXT
+	EXIT_DATA
 	*(.exitcall.exit)
 	*(.IA_64.unwind.exit.text)
 	*(.IA_64.unwind_info.exit.text)
@@ -119,12 +119,12 @@ SECTIONS
   .init.text : AT(ADDR(.init.text) - LOAD_OFFSET)
 	{
 	  _sinittext = .;
-	  *(.init.text)
+	  INIT_TEXT
 	  _einittext = .;
 	}
 
   .init.data : AT(ADDR(.init.data) - LOAD_OFFSET)
-	{ *(.init.data) }
+	{ INIT_DATA }
 
 #ifdef CONFIG_BLK_DEV_INITRD
   .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET)
diff --git a/arch/m32r/kernel/vmlinux.lds.S b/arch/m32r/kernel/vmlinux.lds.S
index 942a8c7a4417..41b07854fcc6 100644
--- a/arch/m32r/kernel/vmlinux.lds.S
+++ b/arch/m32r/kernel/vmlinux.lds.S
@@ -76,10 +76,10 @@ SECTIONS
   __init_begin = .;
   .init.text : {
 	_sinittext = .;
-	*(.init.text)
+	INIT_TEXT
 	_einittext = .;
   }
-  .init.data : { *(.init.data) }
+  .init.data : { INIT_DATA }
   . = ALIGN(16);
   __setup_start = .;
   .init.setup : { *(.init.setup) }
@@ -100,8 +100,8 @@ SECTIONS
   .altinstr_replacement : { *(.altinstr_replacement) }
   /* .exit.text is discard at runtime, not link time, to deal with references
      from .altinstructions and .eh_frame */
-  .exit.text : { *(.exit.text) }
-  .exit.data : { *(.exit.data) }
+  .exit.text : { EXIT_TEXT }
+  .exit.data : { EXIT_DATA }
 
 #ifdef CONFIG_BLK_DEV_INITRD
   . = ALIGN(4096);
@@ -124,8 +124,8 @@ SECTIONS
 
   /* Sections to be discarded */
   /DISCARD/ : {
-	*(.exit.text)
-	*(.exit.data)
+	EXIT_TEXT
+	EXIT_DATA
 	*(.exitcall.exit)
 	}
 
diff --git a/arch/m68k/kernel/vmlinux-std.lds b/arch/m68k/kernel/vmlinux-std.lds
index 59fe285865ec..7537cc5e6159 100644
--- a/arch/m68k/kernel/vmlinux-std.lds
+++ b/arch/m68k/kernel/vmlinux-std.lds
@@ -45,10 +45,10 @@ SECTIONS
   __init_begin = .;
   .init.text : {
 	_sinittext = .;
-	*(.init.text)
+	INIT_TEXT
 	_einittext = .;
   }
-  .init.data : { *(.init.data) }
+  .init.data : { INIT_DATA }
   . = ALIGN(16);
   __setup_start = .;
   .init.setup : { *(.init.setup) }
@@ -82,8 +82,8 @@ SECTIONS
 
   /* Sections to be discarded */
   /DISCARD/ : {
-	*(.exit.text)
-	*(.exit.data)
+	EXIT_TEXT
+	EXIT_DATA
 	*(.exitcall.exit)
 	}
 
diff --git a/arch/m68k/kernel/vmlinux-sun3.lds b/arch/m68k/kernel/vmlinux-sun3.lds
index 4adffefb5c48..cdc313e7c299 100644
--- a/arch/m68k/kernel/vmlinux-sun3.lds
+++ b/arch/m68k/kernel/vmlinux-sun3.lds
@@ -38,10 +38,10 @@ SECTIONS
 __init_begin = .;
 	.init.text : {
 		_sinittext = .;
-		*(.init.text)
+		INIT_TEXT
 		_einittext = .;
 	}
-	.init.data : { *(.init.data) }
+	.init.data : { INIT_DATA }
 	. = ALIGN(16);
 	__setup_start = .;
 	.init.setup : { *(.init.setup) }
@@ -77,8 +77,8 @@ __init_begin = .;
 
   /* Sections to be discarded */
   /DISCARD/ : {
-	*(.exit.text)
-	*(.exit.data)
+	EXIT_TEXT
+	EXIT_DATA
 	*(.exitcall.exit)
 	}
 
diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68knommu/kernel/vmlinux.lds.S
index 07a0055602f4..b44edb08e212 100644
--- a/arch/m68knommu/kernel/vmlinux.lds.S
+++ b/arch/m68knommu/kernel/vmlinux.lds.S
@@ -143,9 +143,9 @@ SECTIONS {
 		. = ALIGN(4096);
 		__init_begin = .;
 		_sinittext = .;
-		*(.init.text)
+		INIT_TEXT
 		_einittext = .;
-		*(.init.data)
+		INIT_DATA
 		. = ALIGN(16);
 		__setup_start = .;
 		*(.init.setup)
@@ -170,8 +170,8 @@ SECTIONS {
 	} > INIT
 
 	/DISCARD/ : {
-		*(.exit.text)
-		*(.exit.data)
+		EXIT_TEXT
+		EXIT_DATA
 		*(.exitcall.exit)
 	}
 
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index 5fc2398bdb76..b5470ceb418b 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -114,11 +114,11 @@ SECTIONS
 	__init_begin = .;
 	.init.text : {
 		_sinittext = .;
-		*(.init.text)
+		INIT_TEXT
 		_einittext = .;
 	}
 	.init.data : {
-		*(.init.data)
+		INIT_DATA
 	}
 	. = ALIGN(16);
 	.init.setup : {
@@ -144,10 +144,10 @@ SECTIONS
 	 * references from .rodata
 	 */
 	.exit.text : {
-		*(.exit.text)
+		EXIT_TEXT
 	}
 	.exit.data : {
-		*(.exit.data)
+		EXIT_DATA
 	}
 #if defined(CONFIG_BLK_DEV_INITRD)
 	. = ALIGN(_PAGE_SIZE);
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 40d0ff9b81ab..50b4a3a25d0a 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -172,11 +172,11 @@ SECTIONS
 	__init_begin = .;
 	.init.text : { 
 		_sinittext = .;
-		*(.init.text)
+		INIT_TEXT
 		_einittext = .;
 	}
 	.init.data : {
-		*(.init.data)
+		INIT_DATA
 	}
 	. = ALIGN(16);
 	.init.setup : {
@@ -215,10 +215,10 @@ SECTIONS
 	 *  from .altinstructions and .eh_frame
 	 */
 	.exit.text : {
-		*(.exit.text)
+		EXIT_TEXT
 	}
 	.exit.data : {
-		*(.exit.data)
+		EXIT_DATA
 	}
 #ifdef CONFIG_BLK_DEV_INITRD
 	. = ALIGN(PAGE_SIZE);
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index f66fa5d966b0..0afb9e31d2a0 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -23,7 +23,7 @@ SECTIONS
 	/* Sections to be discarded. */
 	/DISCARD/ : {
 	*(.exitcall.exit)
-	*(.exit.data)
+	EXIT_DATA
 	}
 
 	. = KERNELBASE;
@@ -76,17 +76,19 @@ SECTIONS
 
 	.init.text : {
 		_sinittext = .;
-		*(.init.text)
+		INIT_TEXT
 		_einittext = .;
 	}
 
 	/* .exit.text is discarded at runtime, not link time,
 	 * to deal with references from __bug_table
 	 */
-	.exit.text : { *(.exit.text) }
+	.exit.text : {
+		EXIT_TEXT
+	}
 
 	.init.data : {
-		*(.init.data);
+		INIT_DATA
 		__vtop_table_begin = .;
 		*(.vtop_fixup);
 		__vtop_table_end = .;
diff --git a/arch/ppc/kernel/vmlinux.lds.S b/arch/ppc/kernel/vmlinux.lds.S
index 98c1212674f6..52b64fcbdfc5 100644
--- a/arch/ppc/kernel/vmlinux.lds.S
+++ b/arch/ppc/kernel/vmlinux.lds.S
@@ -97,14 +97,14 @@ SECTIONS
   __init_begin = .;
   .init.text : {
 	_sinittext = .;
-	*(.init.text)
+	INIT_TEXT
 	_einittext = .;
   }
   /* .exit.text is discarded at runtime, not link time,
      to deal with references from __bug_table */
-  .exit.text : { *(.exit.text) }
+  .exit.text : { EXIT_TEXT }
   .init.data : {
-    *(.init.data);
+    INIT_DATA
     __vtop_table_begin = .;
     *(.vtop_fixup);
     __vtop_table_end = .;
@@ -164,6 +164,6 @@ SECTIONS
   /* Sections to be discarded. */
   /DISCARD/ : {
     *(.exitcall.exit)
-    *(.exit.data)
+    EXIT_DATA
   }
 }
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 936159199346..7d43c3cd3ef3 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -97,7 +97,7 @@ SECTIONS
 	__init_begin = .;
 	.init.text : {
 		_sinittext = .;
-		*(.init.text)
+		INIT_TEXT
 		_einittext = .;
 	}
 	/*
@@ -105,11 +105,11 @@ SECTIONS
 	 * to deal with references from __bug_table
 	*/
 	.exit.text : {
-		*(.exit.text)
+		EXIT_TEXT
 	}
 
 	.init.data : {
-		*(.init.data)
+		INIT_DATA
 	}
 	. = ALIGN(0x100);
 	.init.setup : {
@@ -156,7 +156,7 @@ SECTIONS
 
 	/* Sections to be discarded */
 	/DISCARD/ : {
-		*(.exit.data)
+		EXIT_DATA
 		*(.exitcall.exit)
 	}
 
diff --git a/arch/sh/kernel/vmlinux_32.lds.S b/arch/sh/kernel/vmlinux_32.lds.S
index d549fac6d3e7..c7113786ecd4 100644
--- a/arch/sh/kernel/vmlinux_32.lds.S
+++ b/arch/sh/kernel/vmlinux_32.lds.S
@@ -84,9 +84,9 @@ SECTIONS
 	. = ALIGN(PAGE_SIZE);		/* Init code and data */
 	__init_begin = .;
 	_sinittext = .;
-	.init.text : { *(.init.text) }
+	.init.text : { INIT_TEXT }
 	_einittext = .;
-	.init.data : { *(.init.data) }
+	.init.data : { INIT_DATA }
 
 	. = ALIGN(16);
 	__setup_start = .;
@@ -122,8 +122,8 @@ SECTIONS
 	 * .exit.text is discarded at runtime, not link time, to deal with
 	 * references from __bug_table
 	 */
-	.exit.text : { *(.exit.text) }
-	.exit.data : { *(.exit.data) }
+	.exit.text : { EXIT_TEXT }
+	.exit.data : { EXIT_DATA }
 
 	. = ALIGN(PAGE_SIZE);
 	.bss : {
diff --git a/arch/sh/kernel/vmlinux_64.lds.S b/arch/sh/kernel/vmlinux_64.lds.S
index 2fd0f7401484..3f1bd6392bb3 100644
--- a/arch/sh/kernel/vmlinux_64.lds.S
+++ b/arch/sh/kernel/vmlinux_64.lds.S
@@ -96,9 +96,9 @@ SECTIONS
 	. = ALIGN(PAGE_SIZE);		/* Init code and data */
 	__init_begin = .;
 	_sinittext = .;
-	.init.text : C_PHYS(.init.text) { *(.init.text) }
+	.init.text : C_PHYS(.init.text) { INIT_TEXT }
 	_einittext = .;
-	.init.data : C_PHYS(.init.data) { *(.init.data) }
+	.init.data : C_PHYS(.init.data) { INIT_DATA }
 	. = ALIGN(L1_CACHE_BYTES);	/* Better if Cache Line aligned */
 	__setup_start = .;
 	.init.setup : C_PHYS(.init.setup) { *(.init.setup) }
@@ -134,8 +134,8 @@ SECTIONS
 	 * .exit.text is discarded at runtime, not link time, to deal with
 	 * references from __bug_table
 	 */
-	.exit.text : C_PHYS(.exit.text) { *(.exit.text) }
-	.exit.data : C_PHYS(.exit.data) { *(.exit.data) }
+	.exit.text : C_PHYS(.exit.text) { EXIT_TEXT }
+	.exit.data : C_PHYS(.exit.data) { EXIT_DATA }
 
 	. = ALIGN(PAGE_SIZE);
 	.bss : C_PHYS(.bss) {
diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index a8b4200f9cc3..216147d6e61f 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -48,12 +48,12 @@ SECTIONS
 	__init_begin = .;
 	.init.text : {
 		_sinittext = .;
-		*(.init.text)
+		INIT_TEXT
 		_einittext = .;
 	}
 	__init_text_end = .;
 	.init.data : {
-		*(.init.data)
+		INIT_DATA
 	}
 	. = ALIGN(16);
 	.init.setup : {
@@ -102,8 +102,8 @@ SECTIONS
 	_end = . ;
 	PROVIDE (end = .);
 	/DISCARD/ : {
-		*(.exit.text)
-		*(.exit.data)
+		EXIT_TEXT
+		EXIT_DATA
 		*(.exitcall.exit)
 	}
 
diff --git a/arch/sparc64/kernel/vmlinux.lds.S b/arch/sparc64/kernel/vmlinux.lds.S
index 9fcd503bc04a..01f809617e5e 100644
--- a/arch/sparc64/kernel/vmlinux.lds.S
+++ b/arch/sparc64/kernel/vmlinux.lds.S
@@ -56,11 +56,11 @@ SECTIONS
 	.init.text : {
 		__init_begin = .;
 		_sinittext = .;
-		*(.init.text)
+		INIT_TEXT
 		_einittext = .;
 	}
 	.init.data : {
-		*(.init.data)
+		INIT_DATA
 	}
 	. = ALIGN(16);
 	.init.setup : {
@@ -137,8 +137,8 @@ SECTIONS
 	PROVIDE (end = .);
 
 	/DISCARD/ : {
-		*(.exit.text)
-		*(.exit.data)
+		EXIT_TEXT
+		EXIT_DATA
 		*(.exitcall.exit)
 	}
 
diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S
index 3866f4960f04..26090b7f323e 100644
--- a/arch/um/kernel/dyn.lds.S
+++ b/arch/um/kernel/dyn.lds.S
@@ -17,7 +17,7 @@ SECTIONS
   __init_begin = .;
   .init.text : {
 	_sinittext = .;
-	*(.init.text)
+	INIT_TEXT
 	_einittext = .;
   }
 
@@ -84,7 +84,7 @@ SECTIONS
 
   #include "asm/common.lds.S"
 
-  init.data : { *(.init.data) }
+  init.data : { INIT_DATA }
 
   /* Ensure the __preinit_array_start label is properly aligned.  We
      could instead move the label definition inside the section, but
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index 13df191e2b41..5828c1d54505 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -23,7 +23,7 @@ SECTIONS
   __init_begin = .;
   .init.text : {
 	_sinittext = .;
-	*(.init.text)
+	INIT_TEXT
 	_einittext = .;
   }
   . = ALIGN(4096);
@@ -48,7 +48,7 @@ SECTIONS
 
   #include "asm/common.lds.S"
 
-  init.data : { *(init.data) }
+  init.data : { INIT_DATA }
   .data    :
   {
     . = ALIGN(KERNEL_STACK_SIZE);		/* init_task */
diff --git a/arch/v850/kernel/vmlinux.lds.S b/arch/v850/kernel/vmlinux.lds.S
index 6172599b4ce2..d08cd1d27f27 100644
--- a/arch/v850/kernel/vmlinux.lds.S
+++ b/arch/v850/kernel/vmlinux.lds.S
@@ -114,7 +114,7 @@
 #define DATA_CONTENTS							      \
 		__sdata = . ;						      \
 		DATA_DATA						      \
-			*(.exit.data)	/* 2.5 convention */		      \
+			EXIT_DATA	/* 2.5 convention */		      \
 			*(.data.exit)	/* 2.4 convention */		      \
 		. = ALIGN (16) ;					      \
 		*(.data.cacheline_aligned)				      \
@@ -157,9 +157,9 @@
 		. = ALIGN (4096) ;					      \
 		__init_start = . ;					      \
 			__sinittext = .;				      \
-			*(.init.text)	/* 2.5 convention */		      \
+			INIT_TEXT	/* 2.5 convention */		      \
 			__einittext = .;				      \
-			*(.init.data)					      \
+			INIT_DATA					      \
 			*(.text.init)	/* 2.4 convention */		      \
 			*(.data.init)					      \
 		INITCALL_CONTENTS					      \
@@ -170,7 +170,7 @@
 #define ROMK_INIT_RAM_CONTENTS						      \
 		. = ALIGN (4096) ;					      \
 		__init_start = . ;					      \
-			*(.init.data)	/* 2.5 convention */		      \
+			INIT_DATA	/* 2.5 convention */		      \
 			*(.data.init)	/* 2.4 convention */		      \
 		__init_end = . ;					      \
 		. = ALIGN (4096) ;
@@ -179,7 +179,7 @@
    should go into ROM.  */	
 #define ROMK_INIT_ROM_CONTENTS						      \
 			_sinittext = .;					      \
-			*(.init.text)	/* 2.5 convention */		      \
+			INIT_TEXT	/* 2.5 convention */		      \
 			_einittext = .;					      \
 			*(.text.init)	/* 2.4 convention */		      \
 		INITCALL_CONTENTS					      \
diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S
index 7d72cce00529..84c913f38f98 100644
--- a/arch/x86/kernel/vmlinux_32.lds.S
+++ b/arch/x86/kernel/vmlinux_32.lds.S
@@ -131,10 +131,12 @@ SECTIONS
   .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
   	__init_begin = .;
 	_sinittext = .;
-	*(.init.text)
+	INIT_TEXT
 	_einittext = .;
   }
-  .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { *(.init.data) }
+  .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
+	INIT_DATA
+  }
   . = ALIGN(16);
   .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
   	__setup_start = .;
@@ -169,8 +171,12 @@ SECTIONS
   }
   /* .exit.text is discard at runtime, not link time, to deal with references
      from .altinstructions and .eh_frame */
-  .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { *(.exit.text) }
-  .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { *(.exit.data) }
+  .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
+	EXIT_TEXT
+  }
+  .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
+	EXIT_DATA
+  }
 #if defined(CONFIG_BLK_DEV_INITRD)
   . = ALIGN(4096);
   .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
diff --git a/arch/x86/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S
index ba8ea97abd21..ea5386944e67 100644
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ b/arch/x86/kernel/vmlinux_64.lds.S
@@ -155,12 +155,15 @@ SECTIONS
   __init_begin = .;
   .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
 	_sinittext = .;
-	*(.init.text)
+	INIT_TEXT
 	_einittext = .;
   }
-  __initdata_begin = .;
-  .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { *(.init.data) }
-  __initdata_end = .;
+  .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
+	__initdata_begin = .;
+	INIT_DATA
+	__initdata_end = .;
+   }
+
   . = ALIGN(16);
   __setup_start = .;
   .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) { *(.init.setup) }
@@ -187,8 +190,12 @@ SECTIONS
   }
   /* .exit.text is discard at runtime, not link time, to deal with references
      from .altinstructions and .eh_frame */
-  .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { *(.exit.text) }
-  .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { *(.exit.data) }
+  .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
+	EXIT_TEXT
+  }
+  .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
+	EXIT_DATA
+  }
 
 /* vdso blob that is mapped into user space */
   vdso_start = . ;
diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
index ac4ed52034db..7d0f55a4982d 100644
--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -136,13 +136,13 @@ SECTIONS
   __init_begin = .;
   .init.text : {
   	_sinittext = .;
-	*(.init.literal) *(.init.text)
+	*(.init.literal) INIT_TEXT
 	_einittext = .;
   }
 
   .init.data :
   {
-    *(.init.data)
+    INIT_DATA
     . = ALIGN(0x4);
     __tagtable_begin = .;
     *(.taglist)
@@ -278,8 +278,9 @@ SECTIONS
   /* Sections to be discarded */
   /DISCARD/ :
   {
-  	*(.exit.literal .exit.text)
-  	*(.exit.data)
+	*(.exit.literal)
+	EXIT_TEXT
+	EXIT_DATA
         *(.exitcall.exit)
   }
 
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 9f584cc5c5fb..ae0166e83490 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -183,6 +183,13 @@
 		*(.kprobes.text)					\
 		VMLINUX_SYMBOL(__kprobes_text_end) = .;
 
+/* init and exit section handling */
+#define INIT_TEXT *(.init.text)
+#define INIT_DATA *(.init.data)
+#define EXIT_TEXT *(.exit.text)
+#define EXIT_DATA *(.exit.data)
+
+
 		/* DWARF debug sections.
 		Symbols in the DWARF debugging sections are relative to
 		the beginning of the section so we begin them at 0.  */
-- 
cgit v1.2.3-59-g8ed1b


From 3ff6eecca4e5c49a5d1dd8b58ea0e20102ce08f0 Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@kernel.org>
Date: Thu, 24 Jan 2008 22:16:20 +0100
Subject: remove __attribute_used__

Remove the deprecated __attribute_used__.

[Introduce __section in a few places to silence checkpatch /sam]

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
 arch/alpha/lib/dec_and_lock.c           |  3 +--
 arch/powerpc/boot/Makefile              |  2 +-
 arch/powerpc/kernel/sysfs.c             |  2 +-
 arch/powerpc/oprofile/op_model_power4.c |  6 +++---
 arch/sparc64/kernel/unaligned.c         |  2 +-
 arch/um/include/init.h                  | 26 +++++++++++++-------------
 drivers/rapidio/rio.h                   |  4 ++--
 fs/compat_ioctl.c                       |  2 +-
 include/asm-avr32/setup.h               |  2 +-
 include/asm-ia64/gcc_intrin.h           |  2 +-
 include/asm-sh/machvec.h                |  2 +-
 include/asm-sh/thread_info.h            |  2 +-
 include/asm-x86/thread_info_32.h        |  2 +-
 include/linux/compiler-gcc3.h           |  2 --
 include/linux/compiler-gcc4.h           |  1 -
 include/linux/compiler.h                |  4 ----
 include/linux/elfnote.h                 |  2 +-
 include/linux/init.h                    | 11 +++++------
 include/linux/module.h                  |  4 ++--
 include/linux/moduleparam.h             |  4 ++--
 include/linux/pci.h                     |  2 +-
 scripts/mod/modpost.c                   |  4 ++--
 22 files changed, 41 insertions(+), 50 deletions(-)

(limited to 'arch')

diff --git a/arch/alpha/lib/dec_and_lock.c b/arch/alpha/lib/dec_and_lock.c
index 6ae2500a9d9e..0f5520d2f45f 100644
--- a/arch/alpha/lib/dec_and_lock.c
+++ b/arch/alpha/lib/dec_and_lock.c
@@ -30,8 +30,7 @@ _atomic_dec_and_lock:				\n\
 	.previous				\n\
 	.end _atomic_dec_and_lock");
 
-static int __attribute_used__
-atomic_dec_and_lock_1(atomic_t *atomic, spinlock_t *lock)
+static int __used atomic_dec_and_lock_1(atomic_t *atomic, spinlock_t *lock)
 {
 	/* Slow path */
 	spin_lock(lock);
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 18e32719d0ed..4b1d98b8135e 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -65,7 +65,7 @@ obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib))))
 obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat))))
 
 quiet_cmd_copy_zlib = COPY    $@
-      cmd_copy_zlib = sed "s@__attribute_used__@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
+      cmd_copy_zlib = sed "s@__used@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
 
 quiet_cmd_copy_zlibheader = COPY    $@
       cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 25d9a96484dd..c8127f832df0 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -158,7 +158,7 @@ static ssize_t show_##NAME(struct sys_device *dev, char *buf) \
 	unsigned long val = run_on_cpu(cpu->sysdev.id, read_##NAME, 0); \
 	return sprintf(buf, "%lx\n", val); \
 } \
-static ssize_t __attribute_used__ \
+static ssize_t __used \
 	store_##NAME(struct sys_device *dev, const char *buf, size_t count) \
 { \
 	struct cpu *cpu = container_of(dev, struct cpu, sysdev); \
diff --git a/arch/powerpc/oprofile/op_model_power4.c b/arch/powerpc/oprofile/op_model_power4.c
index cddc250a6a5c..446a8bbb847b 100644
--- a/arch/powerpc/oprofile/op_model_power4.c
+++ b/arch/powerpc/oprofile/op_model_power4.c
@@ -172,15 +172,15 @@ static void power4_stop(void)
 }
 
 /* Fake functions used by canonicalize_pc */
-static void __attribute_used__ hypervisor_bucket(void)
+static void __used hypervisor_bucket(void)
 {
 }
 
-static void __attribute_used__ rtas_bucket(void)
+static void __used rtas_bucket(void)
 {
 }
 
-static void __attribute_used__ kernel_unknown_bucket(void)
+static void __used kernel_unknown_bucket(void)
 {
 }
 
diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c
index 953be816fa25..dc7bf1b6321c 100644
--- a/arch/sparc64/kernel/unaligned.c
+++ b/arch/sparc64/kernel/unaligned.c
@@ -175,7 +175,7 @@ unsigned long compute_effective_address(struct pt_regs *regs,
 }
 
 /* This is just to make gcc think die_if_kernel does return... */
-static void __attribute_used__ unaligned_panic(char *str, struct pt_regs *regs)
+static void __used unaligned_panic(char *str, struct pt_regs *regs)
 {
 	die_if_kernel(str, regs);
 }
diff --git a/arch/um/include/init.h b/arch/um/include/init.h
index d4de7c0120ce..cebc6cae9190 100644
--- a/arch/um/include/init.h
+++ b/arch/um/include/init.h
@@ -42,15 +42,15 @@ typedef void (*exitcall_t)(void);
 
 /* These are for everybody (although not all archs will actually
    discard it in modules) */
-#define __init		__attribute__ ((__section__ (".init.text")))
-#define __initdata	__attribute__ ((__section__ (".init.data")))
-#define __exitdata	__attribute__ ((__section__(".exit.data")))
-#define __exit_call	__attribute_used__ __attribute__ ((__section__ (".exitcall.exit")))
+#define __init		__section(.init.text)
+#define __initdata	__section(.init.data)
+#define __exitdata	__section(.exit.data)
+#define __exit_call	__used __section(.exitcall.exit)
 
 #ifdef MODULE
-#define __exit		__attribute__ ((__section__(".exit.text")))
+#define __exit		__section(.exit.text)
 #else
-#define __exit		__attribute_used__ __attribute__ ((__section__(".exit.text")))
+#define __exit		__used __section(.exit.text)
 #endif
 
 #endif
@@ -103,16 +103,16 @@ extern struct uml_param __uml_setup_start, __uml_setup_end;
  * Mark functions and data as being only used at initialization
  * or exit time.
  */
-#define __uml_init_setup	__attribute_used__ __attribute__ ((__section__ (".uml.setup.init")))
-#define __uml_setup_help	__attribute_used__ __attribute__ ((__section__ (".uml.help.init")))
-#define __uml_init_call		__attribute_used__ __attribute__ ((__section__ (".uml.initcall.init")))
-#define __uml_postsetup_call	__attribute_used__ __attribute__ ((__section__ (".uml.postsetup.init")))
-#define __uml_exit_call		__attribute_used__ __attribute__ ((__section__ (".uml.exitcall.exit")))
+#define __uml_init_setup	__used __section(.uml.setup.init)
+#define __uml_setup_help	__used __section(.uml.help.init)
+#define __uml_init_call		__used __section(.uml.initcall.init)
+#define __uml_postsetup_call	__used __section(.uml.postsetup.init)
+#define __uml_exit_call		__used __section(.uml.exitcall.exit)
 
 #ifndef __KERNEL__
 
 #define __define_initcall(level,fn) \
-	static initcall_t __initcall_##fn __attribute_used__ \
+	static initcall_t __initcall_##fn __used \
 	__attribute__((__section__(".initcall" level ".init"))) = fn
 
 /* Userspace initcalls shouldn't depend on anything in the kernel, so we'll
@@ -122,7 +122,7 @@ extern struct uml_param __uml_setup_start, __uml_setup_end;
 
 #define __exitcall(fn) static exitcall_t __exitcall_##fn __exit_call = fn
 
-#define __init_call	__attribute_used__ __attribute__ ((__section__ (".initcall.init")))
+#define __init_call	__used __section(.initcall.init)
 
 #endif
 
diff --git a/drivers/rapidio/rio.h b/drivers/rapidio/rio.h
index b242cee656e7..80e3f03b5041 100644
--- a/drivers/rapidio/rio.h
+++ b/drivers/rapidio/rio.h
@@ -31,8 +31,8 @@ extern struct rio_route_ops __end_rio_route_ops[];
 
 /* Helpers internal to the RIO core code */
 #define DECLARE_RIO_ROUTE_SECTION(section, vid, did, add_hook, get_hook)  \
-        static struct rio_route_ops __rio_route_ops __attribute_used__   \
-	        __attribute__((__section__(#section))) = { vid, did, add_hook, get_hook };
+	static struct rio_route_ops __rio_route_ops __used   \
+	__section(section)= { vid, did, add_hook, get_hook };
 
 /**
  * DECLARE_RIO_ROUTE_OPS - Registers switch routing operations
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index da8cb3b3592c..ffdc022cae64 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1376,7 +1376,7 @@ static int do_atm_ioctl(unsigned int fd, unsigned int cmd32, unsigned long arg)
         return -EINVAL;
 }
 
-static __attribute_used__ int 
+static __used int
 ret_einval(unsigned int fd, unsigned int cmd, unsigned long arg)
 {
 	return -EINVAL;
diff --git a/include/asm-avr32/setup.h b/include/asm-avr32/setup.h
index b0828d43e110..ea3070ff13a5 100644
--- a/include/asm-avr32/setup.h
+++ b/include/asm-avr32/setup.h
@@ -110,7 +110,7 @@ struct tagtable {
 	int	(*parse)(struct tag *);
 };
 
-#define __tag __attribute_used__ __attribute__((__section__(".taglist.init")))
+#define __tag __used __attribute__((__section__(".taglist.init")))
 #define __tagtable(tag, fn)						\
 	static struct tagtable __tagtable_##fn __tag = { tag, fn }
 
diff --git a/include/asm-ia64/gcc_intrin.h b/include/asm-ia64/gcc_intrin.h
index e58d3298fa10..5b6665c754c9 100644
--- a/include/asm-ia64/gcc_intrin.h
+++ b/include/asm-ia64/gcc_intrin.h
@@ -24,7 +24,7 @@
 extern void ia64_bad_param_for_setreg (void);
 extern void ia64_bad_param_for_getreg (void);
 
-register unsigned long ia64_r13 asm ("r13") __attribute_used__;
+register unsigned long ia64_r13 asm ("r13") __used;
 
 #define ia64_setreg(regnum, val)						\
 ({										\
diff --git a/include/asm-sh/machvec.h b/include/asm-sh/machvec.h
index ddb18ad23303..b2e4124070ae 100644
--- a/include/asm-sh/machvec.h
+++ b/include/asm-sh/machvec.h
@@ -65,6 +65,6 @@ extern struct sh_machine_vector sh_mv;
 #define get_system_type()	sh_mv.mv_name
 
 #define __initmv \
-	__attribute_used__ __attribute__((__section__ (".machvec.init")))
+	__used __section(.machvec.init)
 
 #endif /* _ASM_SH_MACHVEC_H */
diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h
index c6577d3dc46d..c50e5d35fe84 100644
--- a/include/asm-sh/thread_info.h
+++ b/include/asm-sh/thread_info.h
@@ -68,7 +68,7 @@ struct thread_info {
 #define init_stack		(init_thread_union.stack)
 
 /* how to get the current stack pointer from C */
-register unsigned long current_stack_pointer asm("r15") __attribute_used__;
+register unsigned long current_stack_pointer asm("r15") __used;
 
 /* how to get the thread information struct from C */
 static inline struct thread_info *current_thread_info(void)
diff --git a/include/asm-x86/thread_info_32.h b/include/asm-x86/thread_info_32.h
index ef58fd2a6eb0..a516e9192f11 100644
--- a/include/asm-x86/thread_info_32.h
+++ b/include/asm-x86/thread_info_32.h
@@ -85,7 +85,7 @@ struct thread_info {
 
 
 /* how to get the current stack pointer from C */
-register unsigned long current_stack_pointer asm("esp") __attribute_used__;
+register unsigned long current_stack_pointer asm("esp") __used;
 
 /* how to get the thread information struct from C */
 static inline struct thread_info *current_thread_info(void)
diff --git a/include/linux/compiler-gcc3.h b/include/linux/compiler-gcc3.h
index 2d8c0f48f55e..e5eb795f78a1 100644
--- a/include/linux/compiler-gcc3.h
+++ b/include/linux/compiler-gcc3.h
@@ -7,10 +7,8 @@
 
 #if __GNUC_MINOR__ >= 3
 # define __used			__attribute__((__used__))
-# define __attribute_used__	__used				/* deprecated */
 #else
 # define __used			__attribute__((__unused__))
-# define __attribute_used__	__used				/* deprecated */
 #endif
 
 #if __GNUC_MINOR__ >= 4
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index ee7ca5de970c..0ab3a3232330 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -15,7 +15,6 @@
 #endif
 
 #define __used			__attribute__((__used__))
-#define __attribute_used__	__used			/* deprecated */
 #define __must_check 		__attribute__((warn_unused_result))
 #define __compiler_offsetof(a,b) __builtin_offsetof(a,b)
 #define __always_inline		inline __attribute__((always_inline))
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index e0114a61268f..d0e17e1657dc 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -126,10 +126,6 @@ extern void __chk_io_ptr(const volatile void __iomem *);
  * Mark functions that are referenced only in inline assembly as __used so
  * the code is emitted even though it appears to be unreferenced.
  */
-#ifndef __attribute_used__
-# define __attribute_used__	/* deprecated */
-#endif
-
 #ifndef __used
 # define __used			/* unimplemented */
 #endif
diff --git a/include/linux/elfnote.h b/include/linux/elfnote.h
index e831759b2fb5..278e3ef05336 100644
--- a/include/linux/elfnote.h
+++ b/include/linux/elfnote.h
@@ -76,7 +76,7 @@
 		typeof(desc) _desc					\
 			     __attribute__((aligned(sizeof(Elf##size##_Word)))); \
 	} _ELFNOTE_PASTE(_note_, unique)				\
-		__attribute_used__					\
+		__used							\
 		__attribute__((section(".note." name),			\
 			       aligned(sizeof(Elf##size##_Word)),	\
 			       unused)) = {				\
diff --git a/include/linux/init.h b/include/linux/init.h
index dcb66c76bd48..dde1eaa7766b 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -43,7 +43,7 @@
 #define __init		__section(.init.text) __cold
 #define __initdata	__section(.init.data)
 #define __exitdata	__section(.exit.data)
-#define __exit_call	__attribute_used__ __section(.exitcall.exit)
+#define __exit_call	__used __section(.exitcall.exit)
 
 /* modpost check for section mismatches during the kernel build.
  * A section mismatch happens when there are references from a
@@ -144,7 +144,7 @@ void prepare_namespace(void);
  */
 
 #define __define_initcall(level,fn,id) \
-	static initcall_t __initcall_##fn##id __attribute_used__ \
+	static initcall_t __initcall_##fn##id __used \
 	__attribute__((__section__(".initcall" level ".init"))) = fn
 
 /*
@@ -178,11 +178,11 @@ void prepare_namespace(void);
 
 #define console_initcall(fn) \
 	static initcall_t __initcall_##fn \
-	__attribute_used__ __section(.con_initcall.init)=fn
+	__used __section(.con_initcall.init) = fn
 
 #define security_initcall(fn) \
 	static initcall_t __initcall_##fn \
-	__attribute_used__ __section(.security_initcall.init) = fn
+	__used __section(.security_initcall.init) = fn
 
 struct obs_kernel_param {
 	const char *str;
@@ -199,8 +199,7 @@ struct obs_kernel_param {
 #define __setup_param(str, unique_id, fn, early)			\
 	static char __setup_str_##unique_id[] __initdata __aligned(1) = str; \
 	static struct obs_kernel_param __setup_##unique_id	\
-		__attribute_used__				\
-		__section(.init.setup)				\
+		__used __section(.init.setup)			\
 		__attribute__((aligned((sizeof(long)))))	\
 		= { __setup_str_##unique_id, fn, early }
 
diff --git a/include/linux/module.h b/include/linux/module.h
index c97bdb7eb957..404838184ea5 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -178,7 +178,7 @@ void *__symbol_get_gpl(const char *symbol);
 #define __CRC_SYMBOL(sym, sec)					\
 	extern void *__crc_##sym __attribute__((weak));		\
 	static const unsigned long __kcrctab_##sym		\
-	__attribute_used__					\
+	__used							\
 	__attribute__((section("__kcrctab" sec), unused))	\
 	= (unsigned long) &__crc_##sym;
 #else
@@ -193,7 +193,7 @@ void *__symbol_get_gpl(const char *symbol);
 	__attribute__((section("__ksymtab_strings")))		\
 	= MODULE_SYMBOL_PREFIX #sym;                    	\
 	static const struct kernel_symbol __ksymtab_##sym	\
-	__attribute_used__					\
+	__used							\
 	__attribute__((section("__ksymtab" sec), unused))	\
 	= { (unsigned long)&sym, __kstrtab_##sym }
 
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 13410b20600f..8126e55c5bdc 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -18,7 +18,7 @@
 #define __module_cat(a,b) ___module_cat(a,b)
 #define __MODULE_INFO(tag, name, info)					  \
 static const char __module_cat(name,__LINE__)[]				  \
-  __attribute_used__							  \
+  __used								  \
   __attribute__((section(".modinfo"),unused)) = __stringify(tag) "=" info
 #else  /* !MODULE */
 #define __MODULE_INFO(tag, name, info)
@@ -72,7 +72,7 @@ struct kparam_array
 	BUILD_BUG_ON_ZERO((perm) < 0 || (perm) > 0777 || ((perm) & 2));	\
 	static const char __param_str_##name[] = prefix #name;		\
 	static struct kernel_param const __param_##name			\
-	__attribute_used__						\
+	__used								\
     __attribute__ ((unused,__section__ ("__param"),aligned(sizeof(void *)))) \
 	= { __param_str_##name, perm, set, get, { arg } }
 
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 0dd93bb62fbe..ae1006322f80 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -867,7 +867,7 @@ enum pci_fixup_pass {
 
 /* Anonymous variables would be nice... */
 #define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook)	\
-	static const struct pci_fixup __pci_fixup_##name __attribute_used__ \
+	static const struct pci_fixup __pci_fixup_##name __used		\
 	__attribute__((__section__(#section))) = { vendor, device, hook };
 #define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook)			\
 	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early,			\
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 0a80acafd212..e75739ec9c03 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1445,7 +1445,7 @@ static int add_versions(struct buffer *b, struct module *mod)
 
 	buf_printf(b, "\n");
 	buf_printf(b, "static const struct modversion_info ____versions[]\n");
-	buf_printf(b, "__attribute_used__\n");
+	buf_printf(b, "__used\n");
 	buf_printf(b, "__attribute__((section(\"__versions\"))) = {\n");
 
 	for (s = mod->unres; s; s = s->next) {
@@ -1476,7 +1476,7 @@ static void add_depends(struct buffer *b, struct module *mod,
 
 	buf_printf(b, "\n");
 	buf_printf(b, "static const char __module_depends[]\n");
-	buf_printf(b, "__attribute_used__\n");
+	buf_printf(b, "__used\n");
 	buf_printf(b, "__attribute__((section(\".modinfo\"))) =\n");
 	buf_printf(b, "\"depends=");
 	for (s = mod->unres; s; s = s->next) {
-- 
cgit v1.2.3-59-g8ed1b


From d3883ecebbf9e095b9e379dabbbe8b2c1ee7a41c Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@kernel.org>
Date: Sun, 11 Nov 2007 07:48:25 +0100
Subject: Remove references to "make dep"

"make dep" is no longer required in kernel 2.6, but was still mentioned
in some places.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
 arch/arm/mach-imx/Makefile                 | 3 ---
 arch/arm/mach-netx/Makefile                | 3 ---
 arch/frv/kernel/gdb-stub.c                 | 2 +-
 arch/mips/tx4927/common/Makefile           | 4 ----
 arch/mips/tx4938/common/Makefile           | 4 ----
 arch/mips/tx4938/toshiba_rbtx4938/Makefile | 4 ----
 arch/xtensa/mm/Makefile                    | 4 ----
 arch/xtensa/platform-iss/Makefile          | 5 -----
 8 files changed, 1 insertion(+), 28 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 02272aa36e90..88d5e61a2e13 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -1,9 +1,6 @@
 #
 # Makefile for the linux kernel.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
 
 # Object file lists.
 
diff --git a/arch/arm/mach-netx/Makefile b/arch/arm/mach-netx/Makefile
index 18785ff37657..7ce4ba9eb242 100644
--- a/arch/arm/mach-netx/Makefile
+++ b/arch/arm/mach-netx/Makefile
@@ -1,9 +1,6 @@
 #
 # Makefile for the linux kernel.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
 
 # Object file lists.
 
diff --git a/arch/frv/kernel/gdb-stub.c b/arch/frv/kernel/gdb-stub.c
index e89cad1192a9..48a0393e7cee 100644
--- a/arch/frv/kernel/gdb-stub.c
+++ b/arch/frv/kernel/gdb-stub.c
@@ -87,7 +87,7 @@
  *  Example:
  *    $ cd ~/linux
  *    $ make menuconfig <go to "Kernel Hacking" and turn on remote debugging>
- *    $ make dep; make vmlinux
+ *    $ make vmlinux
  *
  *  Step 3:
  *  Download the kernel to the remote target and start
diff --git a/arch/mips/tx4927/common/Makefile b/arch/mips/tx4927/common/Makefile
index 18375787e094..e8629617f25d 100644
--- a/arch/mips/tx4927/common/Makefile
+++ b/arch/mips/tx4927/common/Makefile
@@ -1,10 +1,6 @@
 #
 # Makefile for common code for Toshiba TX4927 based systems
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
 
 obj-y	+= tx4927_prom.o tx4927_setup.o tx4927_irq.o
 
diff --git a/arch/mips/tx4938/common/Makefile b/arch/mips/tx4938/common/Makefile
index 8352eca67906..eff3d1d47f88 100644
--- a/arch/mips/tx4938/common/Makefile
+++ b/arch/mips/tx4938/common/Makefile
@@ -1,10 +1,6 @@
 #
 # Makefile for common code for Toshiba TX4927 based systems
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
 
 obj-y	+= prom.o setup.o irq.o
 obj-$(CONFIG_KGDB) += dbgio.o
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/Makefile b/arch/mips/tx4938/toshiba_rbtx4938/Makefile
index 675bb1c3e40c..2316dd7dd1bd 100644
--- a/arch/mips/tx4938/toshiba_rbtx4938/Makefile
+++ b/arch/mips/tx4938/toshiba_rbtx4938/Makefile
@@ -1,10 +1,6 @@
 #
 # Makefile for common code for Toshiba TX4927 based systems
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
 
 obj-y	+= prom.o setup.o irq.o spi_eeprom.o
 
diff --git a/arch/xtensa/mm/Makefile b/arch/xtensa/mm/Makefile
index 10aec22a8f98..64e304a2f884 100644
--- a/arch/xtensa/mm/Makefile
+++ b/arch/xtensa/mm/Makefile
@@ -1,9 +1,5 @@
 #
 # Makefile for the Linux/Xtensa-specific parts of the memory manager.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
 
 obj-y	 := init.o fault.o tlb.o misc.o cache.o
diff --git a/arch/xtensa/platform-iss/Makefile b/arch/xtensa/platform-iss/Makefile
index 5b394e9620e5..af96e314d71f 100644
--- a/arch/xtensa/platform-iss/Makefile
+++ b/arch/xtensa/platform-iss/Makefile
@@ -3,11 +3,6 @@
 # Makefile for the Xtensa Instruction Set Simulator (ISS)
 # "prom monitor" library routines under Linux.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-# Note 2! The CFLAGS definitions are in the main makefile...
 
 obj-y			= io.o console.o setup.o network.o
 
-- 
cgit v1.2.3-59-g8ed1b


From 28fc1f5a0c375cb6375fa48e9a8b393f2a189be6 Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jeff@garzik.org>
Date: Mon, 29 Oct 2007 05:46:16 -0400
Subject: [netdrvr] irq handler minor cleanups in several drivers

* use irq_handler_t where appropriate

* no need to use 'irq' function arg, its already stored in a data struct

* rename irq handler 'irq' argument to 'dummy', where the function
  has been analyzed and proven not to use its first argument.

* remove always-false "dev_id == NULL" test from irq handlers

* remove pointless casts from void*

* declance: irq argument is not const

* add KERN_xxx printk prefix

* fix minor whitespace weirdness

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 arch/ia64/hp/sim/simeth.c               |  5 -----
 arch/ppc/8260_io/enet.c                 |  4 ++--
 arch/ppc/8260_io/fcc_enet.c             |  4 ++--
 drivers/net/cpmac.c                     |  3 ---
 drivers/net/declance.c                  |  6 +++---
 drivers/net/eexpress.c                  | 11 ++++++-----
 drivers/net/ibmlana.c                   |  4 ++--
 drivers/net/irda/irport.h               |  2 +-
 drivers/net/irda/smsc-ircc2.c           | 17 ++++-------------
 drivers/net/irda/via-ircc.c             | 12 +++---------
 drivers/net/ixgbe/ixgbe_main.c          |  2 +-
 drivers/net/lp486e.c                    |  9 ++++-----
 drivers/net/pcmcia/fmvj18x_cs.c         |  7 +------
 drivers/net/ucc_geth.c                  |  3 ---
 drivers/net/wan/farsync.c               | 11 +++--------
 drivers/net/wan/sdla.c                  |  5 +++--
 drivers/net/wireless/airo.c             |  5 +++--
 drivers/net/wireless/hostap/hostap_hw.c |  2 +-
 drivers/net/wireless/libertas/if_cs.c   |  2 +-
 19 files changed, 40 insertions(+), 74 deletions(-)

(limited to 'arch')

diff --git a/arch/ia64/hp/sim/simeth.c b/arch/ia64/hp/sim/simeth.c
index 08b117e2c54b..9898febf609a 100644
--- a/arch/ia64/hp/sim/simeth.c
+++ b/arch/ia64/hp/sim/simeth.c
@@ -497,11 +497,6 @@ simeth_interrupt(int irq, void *dev_id)
 {
 	struct net_device *dev = dev_id;
 
-	if ( dev == NULL ) {
-		printk(KERN_WARNING "simeth: irq %d for unknown device\n", irq);
-		return IRQ_NONE;
-	}
-
 	/*
 	 * very simple loop because we get interrupts only when receiving
 	 */
diff --git a/arch/ppc/8260_io/enet.c b/arch/ppc/8260_io/enet.c
index 615b6583d9b0..06bb5b77ea62 100644
--- a/arch/ppc/8260_io/enet.c
+++ b/arch/ppc/8260_io/enet.c
@@ -272,7 +272,7 @@ scc_enet_timeout(struct net_device *dev)
  * This is called from the CPM handler, not the MPC core interrupt.
  */
 static irqreturn_t
-scc_enet_interrupt(int irq, void * dev_id)
+scc_enet_interrupt(int irq, void *dev_id)
 {
 	struct	net_device *dev = dev_id;
 	volatile struct	scc_enet_private *cep;
@@ -280,7 +280,7 @@ scc_enet_interrupt(int irq, void * dev_id)
 	ushort	int_events;
 	int	must_restart;
 
-	cep = (struct scc_enet_private *)dev->priv;
+	cep = dev->priv;
 
 	/* Get the interrupt events that caused us to be here.
 	*/
diff --git a/arch/ppc/8260_io/fcc_enet.c b/arch/ppc/8260_io/fcc_enet.c
index 6f3ed6a72e0b..a3a27dafff1f 100644
--- a/arch/ppc/8260_io/fcc_enet.c
+++ b/arch/ppc/8260_io/fcc_enet.c
@@ -524,7 +524,7 @@ fcc_enet_timeout(struct net_device *dev)
 
 /* The interrupt handler. */
 static irqreturn_t
-fcc_enet_interrupt(int irq, void * dev_id)
+fcc_enet_interrupt(int irq, void *dev_id)
 {
 	struct	net_device *dev = dev_id;
 	volatile struct	fcc_enet_private *cep;
@@ -532,7 +532,7 @@ fcc_enet_interrupt(int irq, void * dev_id)
 	ushort	int_events;
 	int	must_restart;
 
-	cep = (struct fcc_enet_private *)dev->priv;
+	cep = dev->priv;
 
 	/* Get the interrupt events that caused us to be here.
 	*/
diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c
index 6e12d48351b8..6ccebb830ff9 100644
--- a/drivers/net/cpmac.c
+++ b/drivers/net/cpmac.c
@@ -661,9 +661,6 @@ static irqreturn_t cpmac_irq(int irq, void *dev_id)
 	int queue;
 	u32 status;
 
-	if (!dev)
-		return IRQ_NONE;
-
 	priv = netdev_priv(dev);
 
 	status = cpmac_read(priv->regs, CPMAC_MAC_INT_VECTOR);
diff --git a/drivers/net/declance.c b/drivers/net/declance.c
index 00e0194bfef0..6b1e77cc069e 100644
--- a/drivers/net/declance.c
+++ b/drivers/net/declance.c
@@ -719,15 +719,15 @@ out:
 	spin_unlock(&lp->lock);
 }
 
-static irqreturn_t lance_dma_merr_int(const int irq, void *dev_id)
+static irqreturn_t lance_dma_merr_int(int irq, void *dev_id)
 {
 	struct net_device *dev = dev_id;
 
-	printk("%s: DMA error\n", dev->name);
+	printk(KERN_ERR "%s: DMA error\n", dev->name);
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t lance_interrupt(const int irq, void *dev_id)
+static irqreturn_t lance_interrupt(int irq, void *dev_id)
 {
 	struct net_device *dev = dev_id;
 	struct lance_private *lp = netdev_priv(dev);
diff --git a/drivers/net/eexpress.c b/drivers/net/eexpress.c
index 70509ed6c11d..8969c3b6d443 100644
--- a/drivers/net/eexpress.c
+++ b/drivers/net/eexpress.c
@@ -456,8 +456,9 @@ static int eexp_open(struct net_device *dev)
 	if (!dev->irq || !irqrmap[dev->irq])
 		return -ENXIO;
 
-	ret = request_irq(dev->irq,&eexp_irq,0,dev->name,dev);
-	if (ret) return ret;
+	ret = request_irq(dev->irq, &eexp_irq, 0, dev->name, dev);
+	if (ret)
+		return ret;
 
 	if (!request_region(ioaddr, EEXP_IO_EXTENT, "EtherExpress")) {
 		printk(KERN_WARNING "EtherExpress io port %x, is busy.\n"
@@ -768,7 +769,7 @@ static void eexp_cmd_clear(struct net_device *dev)
 	}
 }
 
-static irqreturn_t eexp_irq(int irq, void *dev_info)
+static irqreturn_t eexp_irq(int dummy, void *dev_info)
 {
 	struct net_device *dev = dev_info;
 	struct net_local *lp;
@@ -783,7 +784,7 @@ static irqreturn_t eexp_irq(int irq, void *dev_info)
 	old_read_ptr = inw(ioaddr+READ_PTR);
 	old_write_ptr = inw(ioaddr+WRITE_PTR);
 
-	outb(SIRQ_dis|irqrmap[irq],ioaddr+SET_IRQ);
+	outb(SIRQ_dis|irqrmap[dev->irq],ioaddr+SET_IRQ);
 
 
 	status = scb_status(dev);
@@ -851,7 +852,7 @@ static irqreturn_t eexp_irq(int irq, void *dev_info)
 
 	eexp_cmd_clear(dev);
 
-	outb(SIRQ_en|irqrmap[irq],ioaddr+SET_IRQ);
+	outb(SIRQ_en|irqrmap[dev->irq],ioaddr+SET_IRQ);
 
 #if NET_DEBUG > 6
 	printk("%s: leaving eexp_irq()\n", dev->name);
diff --git a/drivers/net/ibmlana.c b/drivers/net/ibmlana.c
index 91d83aca6bc7..65626d61de46 100644
--- a/drivers/net/ibmlana.c
+++ b/drivers/net/ibmlana.c
@@ -704,9 +704,9 @@ static void irqtxerr_handler(struct net_device *dev)
 
 /* general interrupt entry */
 
-static irqreturn_t irq_handler(int irq, void *device)
+static irqreturn_t irq_handler(int dummy, void *device)
 {
-	struct net_device *dev = (struct net_device *) device;
+	struct net_device *dev = device;
 	u16 ival;
 
 	/* in case we're not meant... */
diff --git a/drivers/net/irda/irport.h b/drivers/net/irda/irport.h
index 66fc2433e97d..39829cffba13 100644
--- a/drivers/net/irda/irport.h
+++ b/drivers/net/irda/irport.h
@@ -74,7 +74,7 @@ struct irport_cb {
 	/* For piggyback drivers */
 	void *priv;                
 	void (*change_speed)(void *priv, __u32 speed);
-	irqreturn_t (*interrupt)(int irq, void *dev_id);
+	irq_handler_t interrupt;
 };
 
 #endif /* IRPORT_H */
diff --git a/drivers/net/irda/smsc-ircc2.c b/drivers/net/irda/smsc-ircc2.c
index 7e7b5828214a..1f26da761e9f 100644
--- a/drivers/net/irda/smsc-ircc2.c
+++ b/drivers/net/irda/smsc-ircc2.c
@@ -1505,22 +1505,13 @@ static void smsc_ircc_sir_receive(struct smsc_ircc_cb *self)
  *    An interrupt from the chip has arrived. Time to do some work
  *
  */
-static irqreturn_t smsc_ircc_interrupt(int irq, void *dev_id)
+static irqreturn_t smsc_ircc_interrupt(int dummy, void *dev_id)
 {
-	struct net_device *dev = (struct net_device *) dev_id;
-	struct smsc_ircc_cb *self;
+	struct net_device *dev = dev_id;
+	struct smsc_ircc_cb *self = netdev_priv(dev);
 	int iobase, iir, lcra, lsr;
 	irqreturn_t ret = IRQ_NONE;
 
-	if (dev == NULL) {
-		printk(KERN_WARNING "%s: irq %d for unknown device.\n",
-		       driver_name, irq);
-		goto irq_ret;
-	}
-
-	self = netdev_priv(dev);
-	IRDA_ASSERT(self != NULL, return IRQ_NONE;);
-
 	/* Serialise the interrupt handler in various CPUs, stop Tx path */
 	spin_lock(&self->lock);
 
@@ -1565,7 +1556,7 @@ static irqreturn_t smsc_ircc_interrupt(int irq, void *dev_id)
 
  irq_ret_unlock:
 	spin_unlock(&self->lock);
- irq_ret:
+
 	return ret;
 }
 
diff --git a/drivers/net/irda/via-ircc.c b/drivers/net/irda/via-ircc.c
index 126ec7c8680e..58e128784585 100644
--- a/drivers/net/irda/via-ircc.c
+++ b/drivers/net/irda/via-ircc.c
@@ -1346,19 +1346,13 @@ static int RxTimerHandler(struct via_ircc_cb *self, int iobase)
  *    An interrupt from the chip has arrived. Time to do some work
  *
  */
-static irqreturn_t via_ircc_interrupt(int irq, void *dev_id)
+static irqreturn_t via_ircc_interrupt(int dummy, void *dev_id)
 {
-	struct net_device *dev = (struct net_device *) dev_id;
-	struct via_ircc_cb *self;
+	struct net_device *dev = dev_id;
+	struct via_ircc_cb *self = dev->priv;
 	int iobase;
 	u8 iHostIntType, iRxIntType, iTxIntType;
 
-	if (!dev) {
-		IRDA_WARNING("%s: irq %d for unknown device.\n", driver_name,
-			     irq);
-		return IRQ_NONE;
-	}
-	self = (struct via_ircc_cb *) dev->priv;
 	iobase = self->io.fir_base;
 	spin_lock(&self->lock);
 	iHostIntType = GetHostStatus(iobase);
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index a4265bc1cebb..88341bfb5634 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -734,7 +734,7 @@ static int ixgbe_request_irq(struct ixgbe_adapter *adapter, u32 *num_rx_queues)
 {
 	struct net_device *netdev = adapter->netdev;
 	int flags, err;
-	irqreturn_t(*handler) (int, void *) = &ixgbe_intr;
+	irq_handler_t handler = ixgbe_intr;
 
 	flags = IRQF_SHARED;
 
diff --git a/drivers/net/lp486e.c b/drivers/net/lp486e.c
index c5095ecd8b11..0eff1a00c43c 100644
--- a/drivers/net/lp486e.c
+++ b/drivers/net/lp486e.c
@@ -1144,14 +1144,13 @@ i596_handle_CU_completion(struct net_device *dev,
 }
 
 static irqreturn_t
-i596_interrupt (int irq, void *dev_instance) {
-	struct net_device *dev = (struct net_device *) dev_instance;
-	struct i596_private *lp;
+i596_interrupt (int irq, void *dev_instance)
+{
+	struct net_device *dev = dev_instance;
+	struct i596_private *lp = dev->priv;
 	unsigned short status, ack_cmd = 0;
 	int frames_in = 0;
 
-	lp = (struct i596_private *) dev->priv;
-
 	/*
 	 * The 82596 examines the command, performs the required action,
 	 * and then clears the SCB command word.
diff --git a/drivers/net/pcmcia/fmvj18x_cs.c b/drivers/net/pcmcia/fmvj18x_cs.c
index 8c719b4df544..949c6df74c97 100644
--- a/drivers/net/pcmcia/fmvj18x_cs.c
+++ b/drivers/net/pcmcia/fmvj18x_cs.c
@@ -731,18 +731,13 @@ module_exit(exit_fmvj18x_cs);
 
 /*====================================================================*/
 
-static irqreturn_t fjn_interrupt(int irq, void *dev_id)
+static irqreturn_t fjn_interrupt(int dummy, void *dev_id)
 {
     struct net_device *dev = dev_id;
     local_info_t *lp = netdev_priv(dev);
     kio_addr_t ioaddr;
     unsigned short tx_stat, rx_stat;
 
-    if (lp == NULL) {
-        printk(KERN_NOTICE "fjn_interrupt(): irq %d for "
-	       "unknown device.\n", irq);
-        return IRQ_NONE;
-    }
     ioaddr = dev->base_addr;
 
     /* avoid multiple interrupts */
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index abac7db3819e..73d6ac9406b3 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -3614,9 +3614,6 @@ static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
 
 	ugeth_vdbg("%s: IN", __FUNCTION__);
 
-	if (!ugeth)
-		return IRQ_NONE;
-
 	uccf = ugeth->uccf;
 	ug_info = ugeth->ug_info;
 
diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c
index 12dae8e24844..cf27bf40d36e 100644
--- a/drivers/net/wan/farsync.c
+++ b/drivers/net/wan/farsync.c
@@ -1498,9 +1498,9 @@ do_bottom_half_rx(struct fst_card_info *card)
  *      Dev_id is our fst_card_info pointer
  */
 static irqreturn_t
-fst_intr(int irq, void *dev_id)
+fst_intr(int dummy, void *dev_id)
 {
-	struct fst_card_info *card;
+	struct fst_card_info *card = dev_id;
 	struct fst_port_info *port;
 	int rdidx;		/* Event buffer indices */
 	int wridx;
@@ -1509,17 +1509,12 @@ fst_intr(int irq, void *dev_id)
 	unsigned int do_card_interrupt;
 	unsigned int int_retry_count;
 
-	if ((card = dev_id) == NULL) {
-		dbg(DBG_INTR, "intr: spurious %d\n", irq);
-		return IRQ_NONE;
-	}
-
 	/*
 	 * Check to see if the interrupt was for this card
 	 * return if not
 	 * Note that the call to clear the interrupt is important
 	 */
-	dbg(DBG_INTR, "intr: %d %p\n", irq, card);
+	dbg(DBG_INTR, "intr: %d %p\n", card->irq, card);
 	if (card->state != FST_RUNNING) {
 		printk_err
 		    ("Interrupt received for card %d in a non running state (%d)\n",
diff --git a/drivers/net/wan/sdla.c b/drivers/net/wan/sdla.c
index 05df0a345b60..73e2f2780932 100644
--- a/drivers/net/wan/sdla.c
+++ b/drivers/net/wan/sdla.c
@@ -867,7 +867,7 @@ static void sdla_receive(struct net_device *dev)
 	spin_unlock_irqrestore(&sdla_lock, flags);
 }
 
-static irqreturn_t sdla_isr(int irq, void *dev_id)
+static irqreturn_t sdla_isr(int dummy, void *dev_id)
 {
 	struct net_device     *dev;
 	struct frad_local *flp;
@@ -879,7 +879,8 @@ static irqreturn_t sdla_isr(int irq, void *dev_id)
 
 	if (!flp->initialized)
 	{
-		printk(KERN_WARNING "%s: irq %d for uninitialized device.\n", dev->name, irq);
+		printk(KERN_WARNING "%s: irq %d for uninitialized device.\n",
+		       dev->name, dev->irq);
 		return IRQ_NONE;
 	}
 
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index e3eca6d047c7..d8948bf8a275 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -3177,8 +3177,9 @@ static int airo_thread(void *data) {
 	return 0;
 }
 
-static irqreturn_t airo_interrupt ( int irq, void* dev_id) {
-	struct net_device *dev = (struct net_device *)dev_id;
+static irqreturn_t airo_interrupt(int irq, void *dev_id)
+{
+	struct net_device *dev = dev_id;
 	u16 status;
 	u16 fid;
 	struct airo_info *apriv = dev->priv;
diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c
index c592641e914e..286b46c516ce 100644
--- a/drivers/net/wireless/hostap/hostap_hw.c
+++ b/drivers/net/wireless/hostap/hostap_hw.c
@@ -2624,7 +2624,7 @@ static void prism2_check_magic(local_info_t *local)
 /* Called only from hardware IRQ */
 static irqreturn_t prism2_interrupt(int irq, void *dev_id)
 {
-	struct net_device *dev = (struct net_device *) dev_id;
+	struct net_device *dev = dev_id;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	int events = 0;
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index ba4fc2b3bf0a..d383c0f9fe3e 100644
--- a/drivers/net/wireless/libertas/if_cs.c
+++ b/drivers/net/wireless/libertas/if_cs.c
@@ -243,7 +243,7 @@ static inline void if_cs_disable_ints(struct if_cs_card *card)
 
 static irqreturn_t if_cs_interrupt(int irq, void *data)
 {
-	struct if_cs_card *card = (struct if_cs_card *)data;
+	struct if_cs_card *card = data;
 	u16 int_cause;
 
 	lbs_deb_enter(LBS_DEB_CS);
-- 
cgit v1.2.3-59-g8ed1b


From 8ee9d85779356c1dc2ba87aca27fbf9414f2d82b Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Wed, 28 Nov 2007 20:56:20 -0600
Subject: pasemi: DMA engine management library

pasemi: DMA engine management library

Introduce a DMA management library to manage the various DMA resources
on the PA Semi SoCs. Since several drivers need to allocate these shared
resources, provide some abstractions as well as allocation/free functions
for channels, etc.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
 arch/powerpc/platforms/pasemi/Makefile  |   2 +-
 arch/powerpc/platforms/pasemi/dma_lib.c | 487 ++++++++++++++++++++++++++++++++
 arch/powerpc/platforms/pasemi/pasemi.h  |   1 +
 include/asm-powerpc/pasemi_dma.h        |  76 +++++
 4 files changed, 565 insertions(+), 1 deletion(-)
 create mode 100644 arch/powerpc/platforms/pasemi/dma_lib.c

(limited to 'arch')

diff --git a/arch/powerpc/platforms/pasemi/Makefile b/arch/powerpc/platforms/pasemi/Makefile
index f47fcac7e581..e636daa7a80e 100644
--- a/arch/powerpc/platforms/pasemi/Makefile
+++ b/arch/powerpc/platforms/pasemi/Makefile
@@ -1,4 +1,4 @@
-obj-y	+= setup.o pci.o time.o idle.o powersave.o iommu.o
+obj-y	+= setup.o pci.o time.o idle.o powersave.o iommu.o dma_lib.o
 obj-$(CONFIG_PPC_PASEMI_MDIO)	+= gpio_mdio.o
 obj-$(CONFIG_ELECTRA_IDE) += electra_ide.o
 obj-$(CONFIG_PPC_PASEMI_CPUFREQ) += cpufreq.o
diff --git a/arch/powerpc/platforms/pasemi/dma_lib.c b/arch/powerpc/platforms/pasemi/dma_lib.c
new file mode 100644
index 000000000000..e6e474247dc9
--- /dev/null
+++ b/arch/powerpc/platforms/pasemi/dma_lib.c
@@ -0,0 +1,487 @@
+/*
+ * Copyright (C) 2006-2007 PA Semi, Inc
+ *
+ * Common functions for DMA access on PA Semi PWRficient
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/of.h>
+
+#include <asm/pasemi_dma.h>
+
+#define MAX_TXCH 64
+#define MAX_RXCH 64
+
+static struct pasdma_status *dma_status;
+
+static void __iomem *iob_regs;
+static void __iomem *mac_regs[6];
+static void __iomem *dma_regs;
+
+static int base_hw_irq;
+
+static int num_txch, num_rxch;
+
+static struct pci_dev *dma_pdev;
+
+/* Bitmaps to handle allocation of channels */
+
+static DECLARE_BITMAP(txch_free, MAX_TXCH);
+static DECLARE_BITMAP(rxch_free, MAX_RXCH);
+
+/* pasemi_read_iob_reg - read IOB register
+ * @reg: Register to read (offset into PCI CFG space)
+ */
+unsigned int pasemi_read_iob_reg(unsigned int reg)
+{
+	return in_le32(iob_regs+reg);
+}
+EXPORT_SYMBOL(pasemi_read_iob_reg);
+
+/* pasemi_write_iob_reg - write IOB register
+ * @reg: Register to write to (offset into PCI CFG space)
+ * @val: Value to write
+ */
+void pasemi_write_iob_reg(unsigned int reg, unsigned int val)
+{
+	out_le32(iob_regs+reg, val);
+}
+EXPORT_SYMBOL(pasemi_write_iob_reg);
+
+/* pasemi_read_mac_reg - read MAC register
+ * @intf: MAC interface
+ * @reg: Register to read (offset into PCI CFG space)
+ */
+unsigned int pasemi_read_mac_reg(int intf, unsigned int reg)
+{
+	return in_le32(mac_regs[intf]+reg);
+}
+EXPORT_SYMBOL(pasemi_read_mac_reg);
+
+/* pasemi_write_mac_reg - write MAC register
+ * @intf: MAC interface
+ * @reg: Register to write to (offset into PCI CFG space)
+ * @val: Value to write
+ */
+void pasemi_write_mac_reg(int intf, unsigned int reg, unsigned int val)
+{
+	out_le32(mac_regs[intf]+reg, val);
+}
+EXPORT_SYMBOL(pasemi_write_mac_reg);
+
+/* pasemi_read_dma_reg - read DMA register
+ * @reg: Register to read (offset into PCI CFG space)
+ */
+unsigned int pasemi_read_dma_reg(unsigned int reg)
+{
+	return in_le32(dma_regs+reg);
+}
+EXPORT_SYMBOL(pasemi_read_dma_reg);
+
+/* pasemi_write_dma_reg - write DMA register
+ * @reg: Register to write to (offset into PCI CFG space)
+ * @val: Value to write
+ */
+void pasemi_write_dma_reg(unsigned int reg, unsigned int val)
+{
+	out_le32(dma_regs+reg, val);
+}
+EXPORT_SYMBOL(pasemi_write_dma_reg);
+
+static int pasemi_alloc_tx_chan(enum pasemi_dmachan_type type)
+{
+	int bit;
+	int start, limit;
+
+	switch (type & (TXCHAN_EVT0|TXCHAN_EVT1)) {
+	case TXCHAN_EVT0:
+		start = 0;
+		limit = 10;
+		break;
+	case TXCHAN_EVT1:
+		start = 10;
+		limit = MAX_TXCH;
+		break;
+	default:
+		start = 0;
+		limit = MAX_TXCH;
+		break;
+	}
+retry:
+	bit = find_next_bit(txch_free, MAX_TXCH, start);
+	if (bit >= limit)
+		return -ENOSPC;
+	if (!test_and_clear_bit(bit, txch_free))
+		goto retry;
+
+	return bit;
+}
+
+static void pasemi_free_tx_chan(int chan)
+{
+	BUG_ON(test_bit(chan, txch_free));
+	set_bit(chan, txch_free);
+}
+
+static int pasemi_alloc_rx_chan(void)
+{
+	int bit;
+retry:
+	bit = find_first_bit(rxch_free, MAX_RXCH);
+	if (bit >= MAX_TXCH)
+		return -ENOSPC;
+	if (!test_and_clear_bit(bit, rxch_free))
+		goto retry;
+
+	return bit;
+}
+
+static void pasemi_free_rx_chan(int chan)
+{
+	BUG_ON(test_bit(chan, rxch_free));
+	set_bit(chan, rxch_free);
+}
+
+/* pasemi_dma_alloc_chan - Allocate a DMA channel
+ * @type: Type of channel to allocate
+ * @total_size: Total size of structure to allocate (to allow for more
+ *		room behind the structure to be used by the client)
+ * @offset: Offset in bytes from start of the total structure to the beginning
+ *	    of struct pasemi_dmachan. Needed when struct pasemi_dmachan is
+ *	    not the first member of the client structure.
+ *
+ * pasemi_dma_alloc_chan allocates a DMA channel for use by a client. The
+ * type argument specifies whether it's a RX or TX channel, and in the case
+ * of TX channels which group it needs to belong to (if any).
+ *
+ * Returns a pointer to the total structure allocated on success, NULL
+ * on failure.
+ */
+void *pasemi_dma_alloc_chan(enum pasemi_dmachan_type type,
+			    int total_size, int offset)
+{
+	void *buf;
+	struct pasemi_dmachan *chan;
+	int chno;
+
+	BUG_ON(total_size < sizeof(struct pasemi_dmachan));
+
+	buf = kzalloc(total_size, GFP_KERNEL);
+
+	if (!buf)
+		return NULL;
+	chan = buf + offset;
+
+	chan->priv = buf;
+
+	switch (type & (TXCHAN|RXCHAN)) {
+	case RXCHAN:
+		chno = pasemi_alloc_rx_chan();
+		chan->chno = chno;
+		chan->irq = irq_create_mapping(NULL,
+					       base_hw_irq + num_txch + chno);
+		chan->status = &dma_status->rx_sta[chno];
+		break;
+	case TXCHAN:
+		chno = pasemi_alloc_tx_chan(type);
+		chan->chno = chno;
+		chan->irq = irq_create_mapping(NULL, base_hw_irq + chno);
+		chan->status = &dma_status->tx_sta[chno];
+		break;
+	}
+
+	chan->chan_type = type;
+
+	return chan;
+}
+EXPORT_SYMBOL(pasemi_dma_alloc_chan);
+
+/* pasemi_dma_free_chan - Free a previously allocated channel
+ * @chan: Channel to free
+ *
+ * Frees a previously allocated channel. It will also deallocate any
+ * descriptor ring associated with the channel, if allocated.
+ */
+void pasemi_dma_free_chan(struct pasemi_dmachan *chan)
+{
+	if (chan->ring_virt)
+		pasemi_dma_free_ring(chan);
+
+	switch (chan->chan_type & (RXCHAN|TXCHAN)) {
+	case RXCHAN:
+		pasemi_free_rx_chan(chan->chno);
+		break;
+	case TXCHAN:
+		pasemi_free_tx_chan(chan->chno);
+		break;
+	}
+
+	kfree(chan->priv);
+}
+EXPORT_SYMBOL(pasemi_dma_free_chan);
+
+/* pasemi_dma_alloc_ring - Allocate descriptor ring for a channel
+ * @chan: Channel for which to allocate
+ * @ring_size: Ring size in 64-bit (8-byte) words
+ *
+ * Allocate a descriptor ring for a channel. Returns 0 on success, errno
+ * on failure. The passed in struct pasemi_dmachan is updated with the
+ * virtual and DMA addresses of the ring.
+ */
+int pasemi_dma_alloc_ring(struct pasemi_dmachan *chan, int ring_size)
+{
+	BUG_ON(chan->ring_virt);
+
+	chan->ring_size = ring_size;
+
+	chan->ring_virt = dma_alloc_coherent(&dma_pdev->dev,
+					     ring_size * sizeof(u64),
+					     &chan->ring_dma, GFP_KERNEL);
+
+	if (!chan->ring_virt)
+		return -ENOMEM;
+
+	memset(chan->ring_virt, 0, ring_size * sizeof(u64));
+
+	return 0;
+}
+EXPORT_SYMBOL(pasemi_dma_alloc_ring);
+
+/* pasemi_dma_free_ring - Free an allocated descriptor ring for a channel
+ * @chan: Channel for which to free the descriptor ring
+ *
+ * Frees a previously allocated descriptor ring for a channel.
+ */
+void pasemi_dma_free_ring(struct pasemi_dmachan *chan)
+{
+	BUG_ON(!chan->ring_virt);
+
+	dma_free_coherent(&dma_pdev->dev, chan->ring_size * sizeof(u64),
+			  chan->ring_virt, chan->ring_dma);
+	chan->ring_virt = NULL;
+	chan->ring_size = 0;
+	chan->ring_dma = 0;
+}
+EXPORT_SYMBOL(pasemi_dma_free_ring);
+
+/* pasemi_dma_start_chan - Start a DMA channel
+ * @chan: Channel to start
+ * @cmdsta: Additional CCMDSTA/TCMDSTA bits to write
+ *
+ * Enables (starts) a DMA channel with optional additional arguments.
+ */
+void pasemi_dma_start_chan(const struct pasemi_dmachan *chan, const u32 cmdsta)
+{
+	if (chan->chan_type == RXCHAN)
+		pasemi_write_dma_reg(PAS_DMA_RXCHAN_CCMDSTA(chan->chno),
+				     cmdsta | PAS_DMA_RXCHAN_CCMDSTA_EN);
+	else
+		pasemi_write_dma_reg(PAS_DMA_TXCHAN_TCMDSTA(chan->chno),
+				     cmdsta | PAS_DMA_TXCHAN_TCMDSTA_EN);
+}
+EXPORT_SYMBOL(pasemi_dma_start_chan);
+
+/* pasemi_dma_stop_chan - Stop a DMA channel
+ * @chan: Channel to stop
+ *
+ * Stops (disables) a DMA channel. This is done by setting the ST bit in the
+ * CMDSTA register and waiting on the ACT (active) bit to clear, then
+ * finally disabling the whole channel.
+ *
+ * This function will only try for a short while for the channel to stop, if
+ * it doesn't it will return failure.
+ *
+ * Returns 1 on success, 0 on failure.
+ */
+#define MAX_RETRIES 5000
+int pasemi_dma_stop_chan(const struct pasemi_dmachan *chan)
+{
+	int reg, retries;
+	u32 sta;
+
+	if (chan->chan_type == RXCHAN) {
+		reg = PAS_DMA_RXCHAN_CCMDSTA(chan->chno);
+		pasemi_write_dma_reg(reg, PAS_DMA_RXCHAN_CCMDSTA_ST);
+		for (retries = 0; retries < MAX_RETRIES; retries++) {
+			sta = pasemi_read_dma_reg(reg);
+			if (!(sta & PAS_DMA_RXCHAN_CCMDSTA_ACT)) {
+				pasemi_write_dma_reg(reg, 0);
+				return 1;
+			}
+			cond_resched();
+		}
+	} else {
+		reg = PAS_DMA_TXCHAN_TCMDSTA(chan->chno);
+		pasemi_write_dma_reg(reg, PAS_DMA_TXCHAN_TCMDSTA_ST);
+		for (retries = 0; retries < MAX_RETRIES; retries++) {
+			sta = pasemi_read_dma_reg(reg);
+			if (!(sta & PAS_DMA_TXCHAN_TCMDSTA_ACT)) {
+				pasemi_write_dma_reg(reg, 0);
+				return 1;
+			}
+			cond_resched();
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(pasemi_dma_stop_chan);
+
+/* pasemi_dma_alloc_buf - Allocate a buffer to use for DMA
+ * @chan: Channel to allocate for
+ * @size: Size of buffer in bytes
+ * @handle: DMA handle
+ *
+ * Allocate a buffer to be used by the DMA engine for read/write,
+ * similar to dma_alloc_coherent().
+ *
+ * Returns the virtual address of the buffer, or NULL in case of failure.
+ */
+void *pasemi_dma_alloc_buf(struct pasemi_dmachan *chan, int size,
+			   dma_addr_t *handle)
+{
+	return dma_alloc_coherent(&dma_pdev->dev, size, handle, GFP_KERNEL);
+}
+EXPORT_SYMBOL(pasemi_dma_alloc_buf);
+
+/* pasemi_dma_free_buf - Free a buffer used for DMA
+ * @chan: Channel the buffer was allocated for
+ * @size: Size of buffer in bytes
+ * @handle: DMA handle
+ *
+ * Frees a previously allocated buffer.
+ */
+void pasemi_dma_free_buf(struct pasemi_dmachan *chan, int size,
+			 dma_addr_t *handle)
+{
+	dma_free_coherent(&dma_pdev->dev, size, handle, GFP_KERNEL);
+}
+EXPORT_SYMBOL(pasemi_dma_free_buf);
+
+static void *map_onedev(struct pci_dev *p, int index)
+{
+	struct device_node *dn;
+	void __iomem *ret;
+
+	dn = pci_device_to_OF_node(p);
+	if (!dn)
+		goto fallback;
+
+	ret = of_iomap(dn, index);
+	if (!ret)
+		goto fallback;
+
+	return ret;
+fallback:
+	/* This is hardcoded and ugly, but we have some firmware versions
+	 * that don't provide the register space in the device tree. Luckily
+	 * they are at well-known locations so we can just do the math here.
+	 */
+	return ioremap(0xe0000000 + (p->devfn << 12), 0x2000);
+}
+
+/* pasemi_dma_init - Initialize the PA Semi DMA library
+ *
+ * This function initializes the DMA library. It must be called before
+ * any other function in the library.
+ *
+ * Returns 0 on success, errno on failure.
+ */
+int pasemi_dma_init(void)
+{
+	static spinlock_t init_lock = SPIN_LOCK_UNLOCKED;
+	struct pci_dev *iob_pdev;
+	struct pci_dev *pdev;
+	struct resource res;
+	struct device_node *dn;
+	int i, intf, err = 0;
+	u32 tmp;
+
+	if (!machine_is(pasemi))
+		return -ENODEV;
+
+	spin_lock(&init_lock);
+
+	/* Make sure we haven't already initialized */
+	if (dma_pdev)
+		goto out;
+
+	iob_pdev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa001, NULL);
+	if (!iob_pdev) {
+		BUG();
+		printk(KERN_WARNING "Can't find I/O Bridge\n");
+		err = -ENODEV;
+		goto out;
+	}
+	iob_regs = map_onedev(iob_pdev, 0);
+
+	dma_pdev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa007, NULL);
+	if (!dma_pdev) {
+		BUG();
+		printk(KERN_WARNING "Can't find DMA controller\n");
+		err = -ENODEV;
+		goto out;
+	}
+	dma_regs = map_onedev(dma_pdev, 0);
+	base_hw_irq = virq_to_hw(dma_pdev->irq);
+
+	pci_read_config_dword(dma_pdev, PAS_DMA_CAP_TXCH, &tmp);
+	num_txch = (tmp & PAS_DMA_CAP_TXCH_TCHN_M) >> PAS_DMA_CAP_TXCH_TCHN_S;
+
+	pci_read_config_dword(dma_pdev, PAS_DMA_CAP_RXCH, &tmp);
+	num_rxch = (tmp & PAS_DMA_CAP_RXCH_RCHN_M) >> PAS_DMA_CAP_RXCH_RCHN_S;
+
+	intf = 0;
+	for (pdev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa006, NULL);
+	     pdev;
+	     pdev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa006, pdev))
+		mac_regs[intf++] = map_onedev(pdev, 0);
+
+	pci_dev_put(pdev);
+
+	for (pdev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa005, NULL);
+	     pdev;
+	     pdev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa005, pdev))
+		mac_regs[intf++] = map_onedev(pdev, 0);
+
+	pci_dev_put(pdev);
+
+	dn = pci_device_to_OF_node(iob_pdev);
+	if (dn)
+		err = of_address_to_resource(dn, 1, &res);
+	if (!dn || err) {
+		/* Fallback for old firmware */
+		res.start = 0xfd800000;
+		res.end = res.start + 0x1000;
+	}
+	dma_status = __ioremap(res.start, res.end-res.start, 0);
+	pci_dev_put(iob_pdev);
+
+	for (i = 0; i < MAX_TXCH; i++)
+		__set_bit(i, txch_free);
+
+	for (i = 0; i < MAX_RXCH; i++)
+		__set_bit(i, rxch_free);
+
+	printk(KERN_INFO "PA Semi PWRficient DMA library initialized "
+		"(%d tx, %d rx channels)\n", num_txch, num_rxch);
+
+out:
+	spin_unlock(&init_lock);
+	return err;
+}
diff --git a/arch/powerpc/platforms/pasemi/pasemi.h b/arch/powerpc/platforms/pasemi/pasemi.h
index 516acabb4e96..58b344c6fc38 100644
--- a/arch/powerpc/platforms/pasemi/pasemi.h
+++ b/arch/powerpc/platforms/pasemi/pasemi.h
@@ -9,6 +9,7 @@ extern void __devinit pas_pci_dma_dev_setup(struct pci_dev *dev);
 extern void __iomem *pasemi_pci_getcfgaddr(struct pci_dev *dev, int offset);
 
 extern void __init alloc_iobmap_l2(void);
+extern void __init pasemi_map_registers(void);
 
 /* Power savings modes, implemented in asm */
 extern void idle_spin(void);
diff --git a/include/asm-powerpc/pasemi_dma.h b/include/asm-powerpc/pasemi_dma.h
index 8ef80d8bdecd..b4526ff3a50d 100644
--- a/include/asm-powerpc/pasemi_dma.h
+++ b/include/asm-powerpc/pasemi_dma.h
@@ -33,11 +33,27 @@ struct pasdma_status {
  * device. Use the normal PCI config access functions for them.
  */
 enum {
+	PAS_DMA_CAP_TXCH  = 0x44,	/* Transmit Channel Info      */
+	PAS_DMA_CAP_RXCH  = 0x48,	/* Transmit Channel Info      */
+	PAS_DMA_CAP_IFI	  = 0x4c,	/* Interface Info	      */
 	PAS_DMA_COM_TXCMD = 0x100,	/* Transmit Command Register  */
 	PAS_DMA_COM_TXSTA = 0x104,	/* Transmit Status Register   */
 	PAS_DMA_COM_RXCMD = 0x108,	/* Receive Command Register   */
 	PAS_DMA_COM_RXSTA = 0x10c,	/* Receive Status Register    */
 };
+
+
+#define PAS_DMA_CAP_TXCH_TCHN_M	0x00ff0000 /* # of TX channels */
+#define PAS_DMA_CAP_TXCH_TCHN_S	16
+
+#define PAS_DMA_CAP_RXCH_RCHN_M	0x00ff0000 /* # of RX channels */
+#define PAS_DMA_CAP_RXCH_RCHN_S	16
+
+#define PAS_DMA_CAP_IFI_IOFF_M	0xff000000 /* Cfg reg for intf pointers */
+#define PAS_DMA_CAP_IFI_IOFF_S	24
+#define PAS_DMA_CAP_IFI_NIN_M	0x00ff0000 /* # of interfaces */
+#define PAS_DMA_CAP_IFI_NIN_S	16
+
 #define PAS_DMA_COM_TXCMD_EN	0x00000001 /* enable */
 #define PAS_DMA_COM_TXSTA_ACT	0x00000001 /* active */
 #define PAS_DMA_COM_RXCMD_EN	0x00000001 /* enable */
@@ -388,4 +404,64 @@ enum {
 				 CTRL_CMD_REG_M)
 
 
+
+/* Prototypes for the shared DMA functions in the platform code. */
+
+/* DMA TX Channel type. Right now only limitations used are event types 0/1,
+ * for event-triggered DMA transactions.
+ */
+
+enum pasemi_dmachan_type {
+	RXCHAN = 0,		/* Any RX chan */
+	TXCHAN = 1,		/* Any TX chan */
+	TXCHAN_EVT0 = 0x1001,	/* TX chan in event class 0 (chan 0-9) */
+	TXCHAN_EVT1 = 0x2001,	/* TX chan in event class 1 (chan 10-19) */
+};
+
+struct pasemi_dmachan {
+	int		 chno;		/* Channel number */
+	enum pasemi_dmachan_type chan_type;	/* TX / RX */
+	u64		*status;	/* Ptr to cacheable status */
+	int		 irq;		/* IRQ used by channel */
+	unsigned int	 ring_size;	/* size of allocated ring */
+	dma_addr_t	 ring_dma;	/* DMA address for ring */
+	u64		*ring_virt;	/* Virt address for ring */
+	void		*priv;		/* Ptr to start of client struct */
+};
+
+/* Read/write the different registers in the I/O Bridge, Ethernet
+ * and DMA Controller
+ */
+extern unsigned int pasemi_read_iob_reg(unsigned int reg);
+extern void pasemi_write_iob_reg(unsigned int reg, unsigned int val);
+
+extern unsigned int pasemi_read_mac_reg(int intf, unsigned int reg);
+extern void pasemi_write_mac_reg(int intf, unsigned int reg, unsigned int val);
+
+extern unsigned int pasemi_read_dma_reg(unsigned int reg);
+extern void pasemi_write_dma_reg(unsigned int reg, unsigned int val);
+
+/* Channel management routines */
+
+extern void *pasemi_dma_alloc_chan(enum pasemi_dmachan_type type,
+				   int total_size, int offset);
+extern void pasemi_dma_free_chan(struct pasemi_dmachan *chan);
+
+extern void pasemi_dma_start_chan(const struct pasemi_dmachan *chan,
+				  const u32 cmdsta);
+extern int pasemi_dma_stop_chan(const struct pasemi_dmachan *chan);
+
+/* Common routines to allocate rings and buffers */
+
+extern int pasemi_dma_alloc_ring(struct pasemi_dmachan *chan, int ring_size);
+extern void pasemi_dma_free_ring(struct pasemi_dmachan *chan);
+
+extern void *pasemi_dma_alloc_buf(struct pasemi_dmachan *chan, int size,
+				  dma_addr_t *handle);
+extern void pasemi_dma_free_buf(struct pasemi_dmachan *chan, int size,
+				dma_addr_t *handle);
+
+/* Initialize the library, must be called before any other functions */
+extern int pasemi_dma_init(void);
+
 #endif /* ASM_PASEMI_DMA_H */
-- 
cgit v1.2.3-59-g8ed1b


From 06daa168b681797c91ce1fd567d706b9b84738e2 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Fri, 14 Dec 2007 02:06:55 -0600
Subject: pasemi: export pasemi_dma_init()

Forgot to export this one. Needed when pasemi_mac is compiled as a module.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
 arch/powerpc/platforms/pasemi/dma_lib.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/powerpc/platforms/pasemi/dma_lib.c b/arch/powerpc/platforms/pasemi/dma_lib.c
index e6e474247dc9..c529d8dff395 100644
--- a/arch/powerpc/platforms/pasemi/dma_lib.c
+++ b/arch/powerpc/platforms/pasemi/dma_lib.c
@@ -485,3 +485,4 @@ out:
 	spin_unlock(&init_lock);
 	return err;
 }
+EXPORT_SYMBOL(pasemi_dma_init);
-- 
cgit v1.2.3-59-g8ed1b


From e414004e94b5aebf57ca11be009fed5e39f5b6a8 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:14:54 +0000
Subject: [MIPS] Delete unused CONFIG_DMA_IP32.

The functionality of the former dma-ip32.c has been folded into
dma-default.c.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index b22c043b6ef8..d60bbbb953f0 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -797,10 +797,6 @@ config DMA_COHERENT
 config DMA_IP27
 	bool
 
-config DMA_IP32
-	bool
-	select DMA_NEED_PCI_MAP_STATE
-
 config DMA_NONCOHERENT
 	bool
 	select DMA_NEED_PCI_MAP_STATE
-- 
cgit v1.2.3-59-g8ed1b


From 6920df4025b426cb3c9756944a965fe9ccb30925 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:14:54 +0000
Subject: [MIPS] Delete unused CONFIG_64BIT_CONTEXT

The merge of the code to use this was never completed so delete it for the
time being.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig | 9 ---------
 1 file changed, 9 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index d60bbbb953f0..12bf96334174 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1585,15 +1585,6 @@ config CPU_HAS_SMARTMIPS
 config CPU_HAS_WB
 	bool
 
-config 64BIT_CONTEXT
-	bool "Save 64bit integer registers"
-	depends on 32BIT && CPU_LOONGSON2
-	help
-	  Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
-	  registers can still be accessed as 64bit, mainly for multimedia
-	  instructions. We must have all 64bit save/restored to make sure
-	  those instructions to get correct result.
-
 #
 # Vectored interrupt mode is an R2 feature
 #
-- 
cgit v1.2.3-59-g8ed1b


From 161548bf3529d53398adb3451cdc781cc324fc1d Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:14:54 +0000
Subject: [MIPS] tlbex: Cleanup handling of R2 hazards in TLB handlers.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mm/tlbex.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index a61246d3533d..511107f92d9c 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -860,6 +860,12 @@ static __init void build_tlb_write_entry(u32 **p, struct label **l,
 	case tlb_indexed: tlbw = i_tlbwi; break;
 	}
 
+	if (cpu_has_mips_r2) {
+		i_ehb(p);
+		tlbw(p);
+		return;
+	}
+
 	switch (current_cpu_type()) {
 	case CPU_R4000PC:
 	case CPU_R4000SC:
@@ -935,14 +941,6 @@ static __init void build_tlb_write_entry(u32 **p, struct label **l,
 		tlbw(p);
 		break;
 
-	case CPU_4KEC:
-	case CPU_24K:
-	case CPU_34K:
-	case CPU_74K:
-		i_ehb(p);
-		tlbw(p);
-		break;
-
 	case CPU_RM9000:
 		/*
 		 * When the JTLB is updated by tlbwi or tlbwr, a subsequent
-- 
cgit v1.2.3-59-g8ed1b


From 2b22c034d04d3632a339d14d5803c8f94e412608 Mon Sep 17 00:00:00 2001
From: Alejandro Martinez Ruiz <alex@flawedcode.org>
Date: Mon, 22 Oct 2007 21:36:44 +0200
Subject: [MIPS] Converting most array size calculations to use ARRAY_SIZE().

Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/au1000/common/dbdma.c          | 2 +-
 arch/mips/kernel/kspd.c                  | 3 +--
 arch/mips/philips/pnx8550/common/setup.c | 2 +-
 arch/mips/vr41xx/nec-cmbvr4133/setup.c   | 2 +-
 4 files changed, 4 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/au1000/common/dbdma.c b/arch/mips/au1000/common/dbdma.c
index edf91f41a786..428ed275a0f6 100644
--- a/arch/mips/au1000/common/dbdma.c
+++ b/arch/mips/au1000/common/dbdma.c
@@ -179,7 +179,7 @@ static dbdev_tab_t dbdev_tab[] = {
 	{ 0, 0, 0, 0, 0, 0, 0 },
 };
 
-#define DBDEV_TAB_SIZE (sizeof(dbdev_tab) / sizeof(dbdev_tab_t))
+#define DBDEV_TAB_SIZE	ARRAY_SIZE(dbdev_tab)
 
 static chan_tab_t *chan_tab_ptr[NUM_DBDMA_CHANS];
 
diff --git a/arch/mips/kernel/kspd.c b/arch/mips/kernel/kspd.c
index d2c2e00e5864..f6704ab16306 100644
--- a/arch/mips/kernel/kspd.c
+++ b/arch/mips/kernel/kspd.c
@@ -161,8 +161,7 @@ static unsigned int translate_open_flags(int flags)
 	int i;
 	unsigned int ret = 0;
 
-	for (i = 0; i < (sizeof(open_flags_table) / sizeof(struct apsp_table));
-	     i++) {
+	for (i = 0; i < ARRAY_SIZE(open_flags_table); i++) {
 		if( (flags & open_flags_table[i].sp) ) {
 			ret |= open_flags_table[i].ap;
 		}
diff --git a/arch/mips/philips/pnx8550/common/setup.c b/arch/mips/philips/pnx8550/common/setup.c
index 2ce298f4d19a..92d764c97701 100644
--- a/arch/mips/philips/pnx8550/common/setup.c
+++ b/arch/mips/philips/pnx8550/common/setup.c
@@ -74,7 +74,7 @@ struct resource standard_io_resources[] = {
 	},
 };
 
-#define STANDARD_IO_RESOURCES (sizeof(standard_io_resources)/sizeof(struct resource))
+#define STANDARD_IO_RESOURCES ARRAY_SIZE(standard_io_resources)
 
 extern struct resource pci_io_resource;
 extern struct resource pci_mem_resource;
diff --git a/arch/mips/vr41xx/nec-cmbvr4133/setup.c b/arch/mips/vr41xx/nec-cmbvr4133/setup.c
index 58e47686b499..f14bea8daf90 100644
--- a/arch/mips/vr41xx/nec-cmbvr4133/setup.c
+++ b/arch/mips/vr41xx/nec-cmbvr4133/setup.c
@@ -50,7 +50,7 @@ static struct mtd_partition cmbvr4133_mtd_parts[] = {
 	}
 };
 
-#define number_partitions (sizeof(cmbvr4133_mtd_parts)/sizeof(struct mtd_partition))
+#define number_partitions ARRAY_SIZE(cmbvr4133_mtd_parts)
 #endif
 
 extern void i8259_init(void);
-- 
cgit v1.2.3-59-g8ed1b


From 20d60d9973c3b441902b0a3f4f6f7e7ade08f77d Mon Sep 17 00:00:00 2001
From: "Maciej W. Rozycki" <macro@linux-mips.org>
Date: Tue, 23 Oct 2007 12:43:11 +0100
Subject: [MIPS] R4000/R4400 errata workarounds

 This is the gereric part of R4000/R4400 errata workarounds.  They include
compiler and assembler support as well as some source code modifications
to address the problems with some combinations of multiply/divide+shift
instructions as well as the daddi and daddiu instructions.

 Changes included are as follows:

1. New Kconfig options to select workarounds by platforms as necessary.

2. Arch top-level Makefile to pass necessary options to the compiler; also
   incompatible configurations are detected (-mno-sym32 unsupported as
   horribly intrusive for little gain).

3. Bug detection updated and shuffled -- the multiply/divide+shift problem
   is lethal enough that if not worked around it makes the kernel crash in
   time_init() because of a division by zero; the daddiu erratum might
   also trigger early potentially, though I have not observed it.  On the
   other hand the daddi detection code requires the exception subsystem to
   have been initialised (and is there mainly for information).

4. r4k_daddiu_bug() added so that the existence of the erratum can be
   queried by code at the run time as necessary; useful for generated code
   like TLB fault and copy/clear page handlers.

5. __udelay() updated as it uses multiplication in inline assembly.

 Note that -mdaddi requires modified toolchain (which has been maintained
by myself and available from my site for ~4years now -- versions covered
are GCC 2.95.4 - 4.1.2 and binutils from 2.13 onwards).  The -mfix-r4000
and -mfix-r4400 have been standard for a while though.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig             | 16 +++++++++++
 arch/mips/Makefile            | 12 ++++++---
 arch/mips/kernel/cpu-bugs64.c | 47 ++++++++++++++++----------------
 arch/mips/kernel/setup.c      |  4 ++-
 include/asm-mips/bugs.h       | 25 +++++++++++++++++
 include/asm-mips/delay.h      | 12 +++++++--
 include/asm-mips/war.h        | 62 +++++++++++++++++++++++++++++++++++++++++++
 7 files changed, 148 insertions(+), 30 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 12bf96334174..11bc17ce0ebf 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -91,6 +91,9 @@ config MACH_DECSTATION
 	select BOOT_ELF32
 	select CEVT_R4K
 	select CSRC_R4K
+	select CPU_DADDI_WORKAROUNDS if 64BIT
+	select CPU_R4000_WORKAROUNDS if 64BIT
+	select CPU_R4400_WORKAROUNDS if 64BIT
 	select DMA_NONCOHERENT
 	select NO_IOPORT
 	select IRQ_CPU
@@ -1605,6 +1608,19 @@ config CPU_HAS_SYNC
 config GENERIC_CLOCKEVENTS_BROADCAST
 	bool
 
+#
+# CPU non-features
+#
+config CPU_DADDI_WORKAROUNDS
+	bool
+
+config CPU_R4000_WORKAROUNDS
+	bool
+	select CPU_R4400_WORKAROUNDS
+
+config CPU_R4400_WORKAROUNDS
+	bool
+
 #
 # Use the generic interrupt handling code in kernel/irq/:
 #
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index a1f8d8b96b03..a49127af33c8 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -141,6 +141,10 @@ cflags-$(CONFIG_CPU_R8000)	+= -march=r8000 -Wa,--trap
 cflags-$(CONFIG_CPU_R10000)	+= $(call cc-option,-march=r10000,-march=r8000) \
 			-Wa,--trap
 
+cflags-$(CONFIG_CPU_R4000_WORKAROUNDS)	+= $(call cc-option,-mfix-r4000,)
+cflags-$(CONFIG_CPU_R4400_WORKAROUNDS)	+= $(call cc-option,-mfix-r4400,)
+cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS)	+= $(call cc-option,-mno-daddi,)
+
 ifdef CONFIG_CPU_SB1
 ifdef CONFIG_SB1_PASS_1_WORKAROUNDS
 MODFLAGS	+= -msb1-pass1-workarounds
@@ -602,9 +606,11 @@ ifdef CONFIG_64BIT
     endif
   endif
 
-  ifeq ($(KBUILD_SYM32), y)
-    ifeq ($(call cc-option-yn,-msym32), y)
-      cflags-y += -msym32 -DKBUILD_64BIT_SYM32
+  ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
+    cflags-y += -msym32 -DKBUILD_64BIT_SYM32
+  else
+    ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
+      $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
     endif
   endif
 endif
diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c
index af78456d4138..417bb3e336ac 100644
--- a/arch/mips/kernel/cpu-bugs64.c
+++ b/arch/mips/kernel/cpu-bugs64.c
@@ -18,6 +18,15 @@
 #include <asm/mipsregs.h>
 #include <asm/system.h>
 
+static char bug64hit[] __initdata =
+	"reliable operation impossible!\n%s";
+static char nowar[] __initdata =
+	"Please report to <linux-mips@linux-mips.org>.";
+static char r4kwar[] __initdata =
+	"Enable CPU_R4000_WORKAROUNDS to rectify.";
+static char daddiwar[] __initdata =
+	"Enable CPU_DADDI_WORKAROUNDS to rectify.";
+
 static inline void align_mod(const int align, const int mod)
 {
 	asm volatile(
@@ -155,13 +164,7 @@ static inline void check_mult_sh(void)
 	}
 
 	printk("no.\n");
-	panic("Reliable operation impossible!\n"
-#ifndef CONFIG_CPU_R4000
-	      "Configure for R4000 to enable the workaround."
-#else
-	      "Please report to <linux-mips@linux-mips.org>."
-#endif
-	      );
+	panic(bug64hit, !R4000_WAR ? r4kwar : nowar);
 }
 
 static volatile int daddi_ov __initdata = 0;
@@ -233,15 +236,11 @@ static inline void check_daddi(void)
 	}
 
 	printk("no.\n");
-	panic("Reliable operation impossible!\n"
-#if !defined(CONFIG_CPU_R4000) && !defined(CONFIG_CPU_R4400)
-	      "Configure for R4000 or R4400 to enable the workaround."
-#else
-	      "Please report to <linux-mips@linux-mips.org>."
-#endif
-	      );
+	panic(bug64hit, !DADDI_WAR ? daddiwar : nowar);
 }
 
+int daddiu_bug __initdata = -1;
+
 static inline void check_daddiu(void)
 {
 	long v, w, tmp;
@@ -281,7 +280,9 @@ static inline void check_daddiu(void)
 		: "=&r" (v), "=&r" (w), "=&r" (tmp)
 		: "I" (0xffffffffffffdb9aUL), "I" (0x1234));
 
-	if (v == w) {
+	daddiu_bug = v != w;
+
+	if (!daddiu_bug) {
 		printk("no.\n");
 		return;
 	}
@@ -303,18 +304,16 @@ static inline void check_daddiu(void)
 	}
 
 	printk("no.\n");
-	panic("Reliable operation impossible!\n"
-#if !defined(CONFIG_CPU_R4000) && !defined(CONFIG_CPU_R4400)
-	      "Configure for R4000 or R4400 to enable the workaround."
-#else
-	      "Please report to <linux-mips@linux-mips.org>."
-#endif
-	      );
+	panic(bug64hit, !DADDI_WAR ? daddiwar : nowar);
 }
 
-void __init check_bugs64(void)
+void __init check_bugs64_early(void)
 {
 	check_mult_sh();
-	check_daddi();
 	check_daddiu();
 }
+
+void __init check_bugs64(void)
+{
+	check_daddi();
+}
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index f8a535afce39..7b4418dd5857 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -8,7 +8,7 @@
  * Copyright (C) 1994, 95, 96, 97, 98, 99, 2000, 01, 02, 03  Ralf Baechle
  * Copyright (C) 1996 Stoned Elipot
  * Copyright (C) 1999 Silicon Graphics, Inc.
- * Copyright (C) 2000 2001, 2002  Maciej W. Rozycki
+ * Copyright (C) 2000, 2001, 2002, 2007  Maciej W. Rozycki
  */
 #include <linux/init.h>
 #include <linux/ioport.h>
@@ -24,6 +24,7 @@
 
 #include <asm/addrspace.h>
 #include <asm/bootinfo.h>
+#include <asm/bugs.h>
 #include <asm/cache.h>
 #include <asm/cpu.h>
 #include <asm/sections.h>
@@ -561,6 +562,7 @@ void __init setup_arch(char **cmdline_p)
 	}
 #endif
 	cpu_report();
+	check_bugs_early();
 
 #if defined(CONFIG_VT)
 #if defined(CONFIG_VGA_CONSOLE)
diff --git a/include/asm-mips/bugs.h b/include/asm-mips/bugs.h
index 0d7f9c1f5546..9dc10df32078 100644
--- a/include/asm-mips/bugs.h
+++ b/include/asm-mips/bugs.h
@@ -1,19 +1,34 @@
 /*
  * This is included by init/main.c to check for architecture-dependent bugs.
  *
+ * Copyright (C) 2007  Maciej W. Rozycki
+ *
  * Needs:
  *	void check_bugs(void);
  */
 #ifndef _ASM_BUGS_H
 #define _ASM_BUGS_H
 
+#include <linux/bug.h>
 #include <linux/delay.h>
+
 #include <asm/cpu.h>
 #include <asm/cpu-info.h>
 
+extern int daddiu_bug;
+
+extern void check_bugs64_early(void);
+
 extern void check_bugs32(void);
 extern void check_bugs64(void);
 
+static inline void check_bugs_early(void)
+{
+#ifdef CONFIG_64BIT
+	check_bugs64_early();
+#endif
+}
+
 static inline void check_bugs(void)
 {
 	unsigned int cpu = smp_processor_id();
@@ -25,4 +40,14 @@ static inline void check_bugs(void)
 #endif
 }
 
+static inline int r4k_daddiu_bug(void)
+{
+#ifdef CONFIG_64BIT
+	WARN_ON(daddiu_bug < 0);
+	return daddiu_bug != 0;
+#else
+	return 0;
+#endif
+}
+
 #endif /* _ASM_BUGS_H */
diff --git a/include/asm-mips/delay.h b/include/asm-mips/delay.h
index fab32131e9b4..de5105d05f1e 100644
--- a/include/asm-mips/delay.h
+++ b/include/asm-mips/delay.h
@@ -6,13 +6,16 @@
  * Copyright (C) 1994 by Waldorf Electronics
  * Copyright (C) 1995 - 2000, 01, 03 by Ralf Baechle
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 2007  Maciej W. Rozycki
  */
 #ifndef _ASM_DELAY_H
 #define _ASM_DELAY_H
 
 #include <linux/param.h>
 #include <linux/smp.h>
+
 #include <asm/compiler.h>
+#include <asm/war.h>
 
 static inline void __delay(unsigned long loops)
 {
@@ -50,7 +53,7 @@ static inline void __delay(unsigned long loops)
 
 static inline void __udelay(unsigned long usecs, unsigned long lpj)
 {
-	unsigned long lo;
+	unsigned long hi, lo;
 
 	/*
 	 * The rates of 128 is rounded wrongly by the catchall case
@@ -70,11 +73,16 @@ static inline void __udelay(unsigned long usecs, unsigned long lpj)
 		: "=h" (usecs), "=l" (lo)
 		: "r" (usecs), "r" (lpj)
 		: GCC_REG_ACCUM);
-	else if (sizeof(long) == 8)
+	else if (sizeof(long) == 8 && !R4000_WAR)
 		__asm__("dmultu\t%2, %3"
 		: "=h" (usecs), "=l" (lo)
 		: "r" (usecs), "r" (lpj)
 		: GCC_REG_ACCUM);
+	else if (sizeof(long) == 8 && R4000_WAR)
+		__asm__("dmultu\t%3, %4\n\tmfhi\t%0"
+		: "=r" (usecs), "=h" (hi), "=l" (lo)
+		: "r" (usecs), "r" (lpj)
+		: GCC_REG_ACCUM);
 
 	__delay(usecs);
 }
diff --git a/include/asm-mips/war.h b/include/asm-mips/war.h
index d2808edfd4e9..22361d5e3bf0 100644
--- a/include/asm-mips/war.h
+++ b/include/asm-mips/war.h
@@ -4,12 +4,74 @@
  * for more details.
  *
  * Copyright (C) 2002, 2004, 2007 by Ralf Baechle
+ * Copyright (C) 2007  Maciej W. Rozycki
  */
 #ifndef _ASM_WAR_H
 #define _ASM_WAR_H
 
 #include <war.h>
 
+/*
+ * Work around certain R4000 CPU errata (as implemented by GCC):
+ *
+ * - A double-word or a variable shift may give an incorrect result
+ *   if executed immediately after starting an integer division:
+ *   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
+ *   erratum #28
+ *   "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
+ *   #19
+ *
+ * - A double-word or a variable shift may give an incorrect result
+ *   if executed while an integer multiplication is in progress:
+ *   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
+ *   errata #16 & #28
+ *
+ * - An integer division may give an incorrect result if started in
+ *   a delay slot of a taken branch or a jump:
+ *   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
+ *   erratum #52
+ */
+#ifdef CONFIG_CPU_R4000_WORKAROUNDS
+#define R4000_WAR 1
+#else
+#define R4000_WAR 0
+#endif
+
+/*
+ * Work around certain R4400 CPU errata (as implemented by GCC):
+ *
+ * - A double-word or a variable shift may give an incorrect result
+ *   if executed immediately after starting an integer division:
+ *   "MIPS R4400MC Errata, Processor Revision 1.0", erratum #10
+ *   "MIPS R4400MC Errata, Processor Revision 2.0 & 3.0", erratum #4
+ */
+#ifdef CONFIG_CPU_R4400_WORKAROUNDS
+#define R4400_WAR 1
+#else
+#define R4400_WAR 0
+#endif
+
+/*
+ * Work around the "daddi" and "daddiu" CPU errata:
+ *
+ * - The `daddi' instruction fails to trap on overflow.
+ *   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
+ *   erratum #23
+ *
+ * - The `daddiu' instruction can produce an incorrect result.
+ *   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
+ *   erratum #41
+ *   "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
+ *   #15
+ *   "MIPS R4400PC/SC Errata, Processor Revision 1.0", erratum #7
+ *   "MIPS R4400MC Errata, Processor Revision 1.0", erratum #5
+ */
+#ifdef CONFIG_CPU_DADDI_WORKAROUNDS
+#define DADDI_WAR 1
+#else
+#define DADDI_WAR 0
+#endif
+
 /*
  * Another R4600 erratum.  Due to the lack of errata information the exact
  * technical details aren't known.  I've experimentally found that disabling
-- 
cgit v1.2.3-59-g8ed1b


From 619b6e18fce20e4b2d0082cde989f37e1be7b3e1 Mon Sep 17 00:00:00 2001
From: "Maciej W. Rozycki" <macro@linux-mips.org>
Date: Tue, 23 Oct 2007 12:43:25 +0100
Subject: [MIPS] R4000/R4400 daddiu erratum workaround

 This complements the generic R4000/R4400 errata workaround code and adds
bits for the daddiu problem.  In most places it just modifies handwritten
assembly code so that the assembler is allowed to use a temporary register
as daddiu may now be treated as a macro that expands to a sequence of li
and daddu.  It is the AT register or, where AT is unavailable or used
explicitly for another purpose, an explicitly-named register is selected,
using the .set at=<reg> feature added recently to gas.  This feature is
only used if CONFIG_CPU_DADDI_WORKAROUNDS has been set, so if the
workaround remains disabled, the required version of binutils stays
unchanged.

 Similarly, daddiu instructions put in branch delay slots in noreorder
fragments are now taken out of them and the assembler is allowed to
reorder them itself as possible (which it does making the whole idea of
scheduling them into delay slots manually questionable).

 Also in the very few places where such a simple conversion was not
possible, a handcoded longer sequence is implemented.

 Other than that there are changes to code responsible for building the
TLB fault and page clear/copy handlers to avoid daddiu as appropriate.
These are only effective if the erratum is verified to be present at the
run time.

 Finally there is a trivial update to __delay(), because it uses daddiu in
a branch delay slot.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/genex.S        |  8 ++++-
 arch/mips/lib/csum_partial.S    | 61 ++++++++++++++++++++++++++++++-------
 arch/mips/lib/memcpy-inatomic.S | 25 ++++++++++++----
 arch/mips/lib/memcpy.S          | 60 +++++++++++++++++++++++++++++--------
 arch/mips/lib/memset.S          | 11 ++++++-
 arch/mips/lib/strncpy_user.S    |  4 +--
 arch/mips/mm/pg-r4k.c           | 66 +++++++++++++++++++----------------------
 arch/mips/mm/tlbex.c            | 42 ++++++++++++++++++--------
 include/asm-mips/delay.h        | 11 ++++++-
 include/asm-mips/stackframe.h   |  9 ++++++
 include/asm-mips/uaccess.h      | 13 ++++++--
 11 files changed, 227 insertions(+), 83 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index e76a76bf0b3d..c6ada98ee042 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -6,7 +6,7 @@
  * Copyright (C) 1994 - 2000, 2001, 2003 Ralf Baechle
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  * Copyright (C) 2001 MIPS Technologies, Inc.
- * Copyright (C) 2002 Maciej W. Rozycki
+ * Copyright (C) 2002, 2007  Maciej W. Rozycki
  */
 #include <linux/init.h>
 
@@ -471,7 +471,13 @@ NESTED(nmi_handler, PT_SIZE, sp)
 	jr	k0
 	 rfe
 #else
+#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
 	LONG_ADDIU	k0, 4		/* stall on $k0 */
+#else
+	.set	at=v1
+	LONG_ADDIU	k0, 4
+	.set	noat
+#endif
 	MTC0	k0, CP0_EPC
 	/* I hope three instructions between MTC0 and ERET are enough... */
 	ori	k1, _THREAD_MASK
diff --git a/arch/mips/lib/csum_partial.S b/arch/mips/lib/csum_partial.S
index c0a77fe038be..957a82484e3e 100644
--- a/arch/mips/lib/csum_partial.S
+++ b/arch/mips/lib/csum_partial.S
@@ -7,6 +7,7 @@
  *
  * Copyright (C) 1998, 1999 Ralf Baechle
  * Copyright (C) 1999 Silicon Graphics, Inc.
+ * Copyright (C) 2007  Maciej W. Rozycki
  */
 #include <linux/errno.h>
 #include <asm/asm.h>
@@ -52,9 +53,12 @@
 #define UNIT(unit)  ((unit)*NBYTES)
 
 #define ADDC(sum,reg)						\
+	.set	push;						\
+	.set	noat;						\
 	ADD	sum, reg;					\
 	sltu	v1, sum, reg;					\
-	ADD	sum, v1
+	ADD	sum, v1;					\
+	.set	pop
 
 #define CSUM_BIGCHUNK1(src, offset, sum, _t0, _t1, _t2, _t3)	\
 	LOAD	_t0, (offset + UNIT(0))(src);			\
@@ -178,8 +182,10 @@ move_128bytes:
 	CSUM_BIGCHUNK(src, 0x40, sum, t0, t1, t3, t4)
 	CSUM_BIGCHUNK(src, 0x60, sum, t0, t1, t3, t4)
 	LONG_SUBU	t8, t8, 0x01
+	.set	reorder				/* DADDI_WAR */
+	PTR_ADDU	src, src, 0x80
 	bnez	t8, move_128bytes
-	 PTR_ADDU	src, src, 0x80
+	.set	noreorder
 
 1:
 	beqz	t2, 1f
@@ -208,8 +214,10 @@ end_words:
 	lw	t0, (src)
 	LONG_SUBU	t8, t8, 0x1
 	ADDC(sum, t0)
+	.set	reorder				/* DADDI_WAR */
+	PTR_ADDU	src, src, 0x4
 	bnez	t8, end_words
-	 PTR_ADDU	src, src, 0x4
+	.set	noreorder
 
 /* unknown src alignment and < 8 bytes to go  */
 small_csumcpy:
@@ -246,6 +254,8 @@ small_csumcpy:
 1:	ADDC(sum, t1)
 
 	/* fold checksum */
+	.set	push
+	.set	noat
 #ifdef USE_DOUBLE
 	dsll32	v1, sum, 0
 	daddu	sum, v1
@@ -266,6 +276,7 @@ small_csumcpy:
 	srl	sum, sum, 8
 	or	sum, v1
 	andi	sum, 0xffff
+	.set	pop
 1:
 	.set	reorder
 	/* Add the passed partial csum.  */
@@ -373,7 +384,11 @@ small_csumcpy:
 
 #define ADDRMASK (NBYTES-1)
 
+#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
 	.set	noat
+#else
+	.set	at=v1
+#endif
 
 LEAF(__csum_partial_copy_user)
 	PTR_ADDU	AT, src, len	/* See (1) above. */
@@ -441,8 +456,10 @@ EXC(	STORE	t6, UNIT(6)(dst),	s_exc)
 	ADDC(sum, t6)
 EXC(	STORE	t7, UNIT(7)(dst),	s_exc)
 	ADDC(sum, t7)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, 8*NBYTES
 	bgez	len, 1b
-	 ADD	dst, dst, 8*NBYTES
+	.set	noreorder
 	ADD	len, 8*NBYTES		# revert len (see above)
 
 	/*
@@ -471,8 +488,10 @@ EXC(	STORE	t2, UNIT(2)(dst),	s_exc)
 	ADDC(sum, t2)
 EXC(	STORE	t3, UNIT(3)(dst),	s_exc)
 	ADDC(sum, t3)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, 4*NBYTES
 	beqz	len, done
-	 ADD	dst, dst, 4*NBYTES
+	.set	noreorder
 less_than_4units:
 	/*
 	 * rem = len % NBYTES
@@ -485,8 +504,10 @@ EXC(	LOAD	t0, 0(src),		l_exc)
 	SUB	len, len, NBYTES
 EXC(	STORE	t0, 0(dst),		s_exc)
 	ADDC(sum, t0)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, NBYTES
 	bne	rem, len, 1b
-	 ADD	dst, dst, NBYTES
+	.set	noreorder
 
 	/*
 	 * src and dst are aligned, need to copy rem bytes (rem < NBYTES)
@@ -572,8 +593,10 @@ EXC(	STORE	t2, UNIT(2)(dst),	s_exc)
 	ADDC(sum, t2)
 EXC(	STORE	t3, UNIT(3)(dst),	s_exc)
 	ADDC(sum, t3)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, 4*NBYTES
 	bne	len, rem, 1b
-	 ADD	dst, dst, 4*NBYTES
+	.set	noreorder
 
 cleanup_src_unaligned:
 	beqz	len, done
@@ -587,8 +610,10 @@ EXC(	LDREST	t0, REST(0)(src),	l_exc_copy)
 	SUB	len, len, NBYTES
 EXC(	STORE	t0, 0(dst),		s_exc)
 	ADDC(sum, t0)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, NBYTES
 	bne	len, rem, 1b
-	 ADD	dst, dst, NBYTES
+	.set	noreorder
 
 copy_bytes_checklen:
 	beqz	len, done
@@ -631,6 +656,8 @@ copy_bytes_done:
 	ADDC(sum, t2)
 done:
 	/* fold checksum */
+	.set	push
+	.set	noat
 #ifdef USE_DOUBLE
 	dsll32	v1, sum, 0
 	daddu	sum, v1
@@ -651,6 +678,7 @@ done:
 	srl	sum, sum, 8
 	or	sum, v1
 	andi	sum, 0xffff
+	.set	pop
 1:
 	.set reorder
 	ADDC(sum, psum)
@@ -678,8 +706,10 @@ EXC(	lbu	t1, 0(src),	l_exc)
 	SLLV	t1, t1, t2
 	addu	t2, SHIFT_INC
 	ADDC(sum, t1)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, 1
 	bne	src, t0, 1b
-	 ADD	dst, dst, 1
+	.set	noreorder
 l_exc:
 	LOAD	t0, TI_TASK($28)
 	 nop
@@ -697,12 +727,22 @@ l_exc:
 	 * Clear len bytes starting at dst.  Can't call __bzero because it
 	 * might modify len.  An inefficient loop for these rare times...
 	 */
+	.set	reorder				/* DADDI_WAR */
+	SUB	src, len, 1
 	beqz	len, done
-	 SUB	src, len, 1
+	.set	noreorder
 1:	sb	zero, 0(dst)
 	ADD	dst, dst, 1
+	.set	push
+	.set	noat
+#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
 	bnez	src, 1b
 	 SUB	src, src, 1
+#else
+	li	v1, 1
+	bnez	src, 1b
+	 SUB	src, src, v1
+#endif
 	li	v1, -EFAULT
 	b	done
 	 sw	v1, (errptr)
@@ -712,4 +752,5 @@ s_exc:
 	li	v1, -EFAULT
 	jr	ra
 	 sw	v1, (errptr)
+	.set	pop
 	END(__csum_partial_copy_user)
diff --git a/arch/mips/lib/memcpy-inatomic.S b/arch/mips/lib/memcpy-inatomic.S
index 3a534b2baa0f..d1b08f5d6860 100644
--- a/arch/mips/lib/memcpy-inatomic.S
+++ b/arch/mips/lib/memcpy-inatomic.S
@@ -9,6 +9,7 @@
  * Copyright (C) 1999, 2000, 01, 2002 Silicon Graphics, Inc.
  * Copyright (C) 2002 Broadcom, Inc.
  *   memcpy/copy_user author: Mark Vandevoorde
+ * Copyright (C) 2007  Maciej W. Rozycki
  *
  * Mnemonic names for arguments to memcpy/__copy_user
  */
@@ -175,7 +176,11 @@
 
 	.text
 	.set	noreorder
+#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
 	.set	noat
+#else
+	.set	at=v1
+#endif
 
 /*
  * A combined memcpy/__copy_user
@@ -268,8 +273,10 @@ EXC(	LOAD	t3, UNIT(3)(src),	l_exc_copy)
 	STORE	t1, UNIT(1)(dst)
 	STORE	t2, UNIT(2)(dst)
 	STORE	t3, UNIT(3)(dst)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, 4*NBYTES
 	beqz	len, done
-	 ADD	dst, dst, 4*NBYTES
+	.set	noreorder
 less_than_4units:
 	/*
 	 * rem = len % NBYTES
@@ -281,8 +288,10 @@ EXC(	LOAD	t0, 0(src),		l_exc)
 	ADD	src, src, NBYTES
 	SUB	len, len, NBYTES
 	STORE	t0, 0(dst)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, NBYTES
 	bne	rem, len, 1b
-	 ADD	dst, dst, NBYTES
+	.set	noreorder
 
 	/*
 	 * src and dst are aligned, need to copy rem bytes (rem < NBYTES)
@@ -361,8 +370,10 @@ EXC(	LDREST	t3, REST(3)(src),	l_exc_copy)
 	STORE	t2, UNIT(2)(dst)
 	STORE	t3, UNIT(3)(dst)
 	PREF(	1, 9*32(dst) )     	# 1 is PREF_STORE (not streamed)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, 4*NBYTES
 	bne	len, rem, 1b
-	 ADD	dst, dst, 4*NBYTES
+	.set	noreorder
 
 cleanup_src_unaligned:
 	beqz	len, done
@@ -375,8 +386,10 @@ EXC(	LDREST	t0, REST(0)(src),	l_exc_copy)
 	ADD	src, src, NBYTES
 	SUB	len, len, NBYTES
 	STORE	t0, 0(dst)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, NBYTES
 	bne	len, rem, 1b
-	 ADD	dst, dst, NBYTES
+	.set	noreorder
 
 copy_bytes_checklen:
 	beqz	len, done
@@ -424,8 +437,10 @@ l_exc_copy:
 EXC(	lb	t1, 0(src),	l_exc)
 	ADD	src, src, 1
 	sb	t1, 0(dst)	# can't fault -- we're copy_from_user
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, 1
 	bne	src, t0, 1b
-	 ADD	dst, dst, 1
+	.set	noreorder
 l_exc:
 	LOAD	t0, TI_TASK($28)
 	 nop
diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S
index a526c62cb76a..aded7b159052 100644
--- a/arch/mips/lib/memcpy.S
+++ b/arch/mips/lib/memcpy.S
@@ -9,6 +9,7 @@
  * Copyright (C) 1999, 2000, 01, 2002 Silicon Graphics, Inc.
  * Copyright (C) 2002 Broadcom, Inc.
  *   memcpy/copy_user author: Mark Vandevoorde
+ * Copyright (C) 2007  Maciej W. Rozycki
  *
  * Mnemonic names for arguments to memcpy/__copy_user
  */
@@ -175,7 +176,11 @@
 
 	.text
 	.set	noreorder
+#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
 	.set	noat
+#else
+	.set	at=v1
+#endif
 
 /*
  * A combined memcpy/__copy_user
@@ -271,8 +276,10 @@ EXC(	STORE	t0, UNIT(0)(dst),	s_exc_p4u)
 EXC(	STORE	t1, UNIT(1)(dst),	s_exc_p3u)
 EXC(	STORE	t2, UNIT(2)(dst),	s_exc_p2u)
 EXC(	STORE	t3, UNIT(3)(dst),	s_exc_p1u)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, 4*NBYTES
 	beqz	len, done
-	 ADD	dst, dst, 4*NBYTES
+	.set	noreorder
 less_than_4units:
 	/*
 	 * rem = len % NBYTES
@@ -284,8 +291,10 @@ EXC(	LOAD	t0, 0(src),		l_exc)
 	ADD	src, src, NBYTES
 	SUB	len, len, NBYTES
 EXC(	STORE	t0, 0(dst),		s_exc_p1u)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, NBYTES
 	bne	rem, len, 1b
-	 ADD	dst, dst, NBYTES
+	.set	noreorder
 
 	/*
 	 * src and dst are aligned, need to copy rem bytes (rem < NBYTES)
@@ -364,8 +373,10 @@ EXC(	STORE	t1, UNIT(1)(dst),	s_exc_p3u)
 EXC(	STORE	t2, UNIT(2)(dst),	s_exc_p2u)
 EXC(	STORE	t3, UNIT(3)(dst),	s_exc_p1u)
 	PREF(	1, 9*32(dst) )     	# 1 is PREF_STORE (not streamed)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, 4*NBYTES
 	bne	len, rem, 1b
-	 ADD	dst, dst, 4*NBYTES
+	.set	noreorder
 
 cleanup_src_unaligned:
 	beqz	len, done
@@ -378,8 +389,10 @@ EXC(	LDREST	t0, REST(0)(src),	l_exc_copy)
 	ADD	src, src, NBYTES
 	SUB	len, len, NBYTES
 EXC(	STORE	t0, 0(dst),		s_exc_p1u)
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, NBYTES
 	bne	len, rem, 1b
-	 ADD	dst, dst, NBYTES
+	.set	noreorder
 
 copy_bytes_checklen:
 	beqz	len, done
@@ -427,8 +440,10 @@ l_exc_copy:
 EXC(	lb	t1, 0(src),	l_exc)
 	ADD	src, src, 1
 	sb	t1, 0(dst)	# can't fault -- we're copy_from_user
+	.set	reorder				/* DADDI_WAR */
+	ADD	dst, dst, 1
 	bne	src, t0, 1b
-	 ADD	dst, dst, 1
+	.set	noreorder
 l_exc:
 	LOAD	t0, TI_TASK($28)
 	 nop
@@ -446,20 +461,33 @@ l_exc:
 	 * Clear len bytes starting at dst.  Can't call __bzero because it
 	 * might modify len.  An inefficient loop for these rare times...
 	 */
+	.set	reorder				/* DADDI_WAR */
+	SUB	src, len, 1
 	beqz	len, done
-	 SUB	src, len, 1
+	.set	noreorder
 1:	sb	zero, 0(dst)
 	ADD	dst, dst, 1
+#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
 	bnez	src, 1b
 	 SUB	src, src, 1
+#else
+	.set	push
+	.set	noat
+	li	v1, 1
+	bnez	src, 1b
+	 SUB	src, src, v1
+	.set	pop
+#endif
 	jr	ra
 	 nop
 
 
-#define SEXC(n)				\
-s_exc_p ## n ## u:			\
-	jr	ra;			\
-	 ADD	len, len, n*NBYTES
+#define SEXC(n)							\
+	.set	reorder;			/* DADDI_WAR */	\
+s_exc_p ## n ## u:						\
+	ADD	len, len, n*NBYTES;				\
+	jr	ra;						\
+	.set	noreorder
 
 SEXC(8)
 SEXC(7)
@@ -471,8 +499,10 @@ SEXC(2)
 SEXC(1)
 
 s_exc_p1:
+	.set	reorder				/* DADDI_WAR */
+	ADD	len, len, 1
 	jr	ra
-	 ADD	len, len, 1
+	.set	noreorder
 s_exc:
 	jr	ra
 	 nop
@@ -502,8 +532,10 @@ r_end_bytes:
 	SUB	a2, a2, 0x1
 	sb	t0, -1(a0)
 	SUB	a1, a1, 0x1
+	.set	reorder				/* DADDI_WAR */
+	SUB	a0, a0, 0x1
 	bnez	a2, r_end_bytes
-	 SUB	a0, a0, 0x1
+	.set	noreorder
 
 r_out:
 	jr	ra
@@ -514,8 +546,10 @@ r_end_bytes_up:
 	SUB	a2, a2, 0x1
 	sb	t0, (a0)
 	ADD	a1, a1, 0x1
+	.set	reorder				/* DADDI_WAR */
+	ADD	a0, a0, 0x1
 	bnez	a2, r_end_bytes_up
-	 ADD	a0, a0, 0x1
+	.set	noreorder
 
 	jr	ra
 	 move	a2, zero
diff --git a/arch/mips/lib/memset.S b/arch/mips/lib/memset.S
index 3f8b8b3d0b23..3bf38422342f 100644
--- a/arch/mips/lib/memset.S
+++ b/arch/mips/lib/memset.S
@@ -5,6 +5,7 @@
  *
  * Copyright (C) 1998, 1999, 2000 by Ralf Baechle
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 2007  Maciej W. Rozycki
  */
 #include <asm/asm.h>
 #include <asm/asm-offsets.h>
@@ -74,8 +75,16 @@ FEXPORT(__bzero)
 	bnez		t0, small_memset
 	 andi		t0, a0, LONGMASK	/* aligned? */
 
+#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
 	beqz		t0, 1f
 	 PTR_SUBU	t0, LONGSIZE		/* alignment in bytes */
+#else
+	.set		noat
+	li		AT, LONGSIZE
+	beqz		t0, 1f
+	 PTR_SUBU	t0, AT			/* alignment in bytes */
+	.set		at
+#endif
 
 #ifdef __MIPSEB__
 	EX(LONG_S_L, a1, (a0), first_fixup)	/* make word/dword aligned */
@@ -106,7 +115,7 @@ memset_partial:
 	.set		noat
 	LONG_SRL		AT, t0, 1
 	PTR_SUBU	t1, AT
-	.set		noat
+	.set		at
 #endif
 	jr		t1
 	 PTR_ADDU	a0, t0			/* dest ptr */
diff --git a/arch/mips/lib/strncpy_user.S b/arch/mips/lib/strncpy_user.S
index d16c76fbfac7..5c8fb9d6b7f9 100644
--- a/arch/mips/lib/strncpy_user.S
+++ b/arch/mips/lib/strncpy_user.S
@@ -41,9 +41,9 @@ FEXPORT(__strncpy_from_user_nocheck_asm)
 	beqz		t0, 2f
 	 sb		t0, (a0)
 	PTR_ADDIU	v0, 1
-	bne		v0, a2, 1b
-	 PTR_ADDIU	a0, 1
 	.set		reorder
+	PTR_ADDIU	a0, 1
+	bne		v0, a2, 1b
 2:	PTR_ADDU	t0, a1, v0
 	xor		t0, a1
 	bltz		t0, fault
diff --git a/arch/mips/mm/pg-r4k.c b/arch/mips/mm/pg-r4k.c
index 4f770ac885ce..9185fbf37c0d 100644
--- a/arch/mips/mm/pg-r4k.c
+++ b/arch/mips/mm/pg-r4k.c
@@ -4,6 +4,7 @@
  * for more details.
  *
  * Copyright (C) 2003, 04, 05 Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2007  Maciej W. Rozycki
  */
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -12,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/proc_fs.h>
 
+#include <asm/bugs.h>
 #include <asm/cacheops.h>
 #include <asm/inst.h>
 #include <asm/io.h>
@@ -255,64 +257,58 @@ static inline void build_store_reg(int reg)
 	__build_store_reg(reg);
 }
 
-static inline void build_addiu_a2_a0(unsigned long offset)
+static inline void build_addiu_rt_rs(unsigned int rt, unsigned int rs,
+				     unsigned long offset)
 {
 	union mips_instruction mi;
 
 	BUG_ON(offset > 0x7fff);
 
-	mi.i_format.opcode     = cpu_has_64bit_gp_regs ? daddiu_op : addiu_op;
-	mi.i_format.rs         = 4;		/* $a0 */
-	mi.i_format.rt         = 6;		/* $a2 */
-	mi.i_format.simmediate = offset;
+	if (cpu_has_64bit_gp_regs && DADDI_WAR && r4k_daddiu_bug()) {
+		mi.i_format.opcode     = addiu_op;
+		mi.i_format.rs         = 0;	/* $zero */
+		mi.i_format.rt         = 25;	/* $t9 */
+		mi.i_format.simmediate = offset;
+		emit_instruction(mi);
 
+		mi.r_format.opcode     = spec_op;
+		mi.r_format.rs         = rs;
+		mi.r_format.rt         = 25;	/* $t9 */
+		mi.r_format.rd         = rt;
+		mi.r_format.re         = 0;
+		mi.r_format.func       = daddu_op;
+	} else {
+		mi.i_format.opcode     = cpu_has_64bit_gp_regs ?
+					 daddiu_op : addiu_op;
+		mi.i_format.rs         = rs;
+		mi.i_format.rt         = rt;
+		mi.i_format.simmediate = offset;
+	}
 	emit_instruction(mi);
 }
 
-static inline void build_addiu_a2(unsigned long offset)
+static inline void build_addiu_a2_a0(unsigned long offset)
 {
-	union mips_instruction mi;
-
-	BUG_ON(offset > 0x7fff);
-
-	mi.i_format.opcode     = cpu_has_64bit_gp_regs ? daddiu_op : addiu_op;
-	mi.i_format.rs         = 6;		/* $a2 */
-	mi.i_format.rt         = 6;		/* $a2 */
-	mi.i_format.simmediate = offset;
+	build_addiu_rt_rs(6, 4, offset);	/* $a2, $a0, offset */
+}
 
-	emit_instruction(mi);
+static inline void build_addiu_a2(unsigned long offset)
+{
+	build_addiu_rt_rs(6, 6, offset);	/* $a2, $a2, offset */
 }
 
 static inline void build_addiu_a1(unsigned long offset)
 {
-	union mips_instruction mi;
-
-	BUG_ON(offset > 0x7fff);
-
-	mi.i_format.opcode     = cpu_has_64bit_gp_regs ? daddiu_op : addiu_op;
-	mi.i_format.rs         = 5;		/* $a1 */
-	mi.i_format.rt         = 5;		/* $a1 */
-	mi.i_format.simmediate = offset;
+	build_addiu_rt_rs(5, 5, offset);	/* $a1, $a1, offset */
 
 	load_offset -= offset;
-
-	emit_instruction(mi);
 }
 
 static inline void build_addiu_a0(unsigned long offset)
 {
-	union mips_instruction mi;
-
-	BUG_ON(offset > 0x7fff);
-
-	mi.i_format.opcode     = cpu_has_64bit_gp_regs ? daddiu_op : addiu_op;
-	mi.i_format.rs         = 4;		/* $a0 */
-	mi.i_format.rt         = 4;		/* $a0 */
-	mi.i_format.simmediate = offset;
+	build_addiu_rt_rs(4, 4, offset);	/* $a0, $a0, offset */
 
 	store_offset -= offset;
-
-	emit_instruction(mi);
 }
 
 static inline void build_bne(unsigned int *dest)
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 511107f92d9c..f8925ba0b39e 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -6,7 +6,7 @@
  * Synthesize TLB refill handlers at runtime.
  *
  * Copyright (C) 2004,2005,2006 by Thiemo Seufer
- * Copyright (C) 2005  Maciej W. Rozycki
+ * Copyright (C) 2005, 2007  Maciej W. Rozycki
  * Copyright (C) 2006  Ralf Baechle (ralf@linux-mips.org)
  *
  * ... and the days got worse and worse and now you see
@@ -27,6 +27,7 @@
 #include <linux/string.h>
 #include <linux/init.h>
 
+#include <asm/bugs.h>
 #include <asm/pgtable.h>
 #include <asm/cacheflush.h>
 #include <asm/mmu_context.h>
@@ -293,7 +294,7 @@ static void __init build_insn(u32 **buf, enum opcode opc, ...)
 			break;
 		}
 
-	if (!ip)
+	if (!ip || (opc == insn_daddiu && r4k_daddiu_bug()))
 		panic("Unsupported TLB synthesizer instruction %d", opc);
 
 	op = ip->match;
@@ -525,23 +526,33 @@ L_LA(_r3000_write_probe_fail)
 #define i_ssnop(buf) i_sll(buf, 0, 0, 1)
 #define i_ehb(buf) i_sll(buf, 0, 0, 3)
 
-#ifdef CONFIG_64BIT
 static __init int __maybe_unused in_compat_space_p(long addr)
 {
 	/* Is this address in 32bit compat space? */
+#ifdef CONFIG_64BIT
 	return (((addr) & 0xffffffff00000000L) == 0xffffffff00000000L);
+#else
+	return 1;
+#endif
 }
 
 static __init int __maybe_unused rel_highest(long val)
 {
+#ifdef CONFIG_64BIT
 	return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000;
+#else
+	return 0;
+#endif
 }
 
 static __init int __maybe_unused rel_higher(long val)
 {
+#ifdef CONFIG_64BIT
 	return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
-}
+#else
+	return 0;
 #endif
+}
 
 static __init int rel_hi(long val)
 {
@@ -555,7 +566,6 @@ static __init int rel_lo(long val)
 
 static __init void i_LA_mostly(u32 **buf, unsigned int rs, long addr)
 {
-#ifdef CONFIG_64BIT
 	if (!in_compat_space_p(addr)) {
 		i_lui(buf, rs, rel_highest(addr));
 		if (rel_higher(addr))
@@ -567,16 +577,18 @@ static __init void i_LA_mostly(u32 **buf, unsigned int rs, long addr)
 		} else
 			i_dsll32(buf, rs, rs, 0);
 	} else
-#endif
 		i_lui(buf, rs, rel_hi(addr));
 }
 
-static __init void __maybe_unused i_LA(u32 **buf, unsigned int rs,
-					     long addr)
+static __init void __maybe_unused i_LA(u32 **buf, unsigned int rs, long addr)
 {
 	i_LA_mostly(buf, rs, addr);
-	if (rel_lo(addr))
-		i_ADDIU(buf, rs, rs, rel_lo(addr));
+	if (rel_lo(addr)) {
+		if (!in_compat_space_p(addr))
+			i_daddiu(buf, rs, rs, rel_lo(addr));
+		else
+			i_addiu(buf, rs, rs, rel_lo(addr));
+	}
 }
 
 /*
@@ -1085,7 +1097,10 @@ build_get_pgd_vmalloc64(u32 **p, struct label **l, struct reloc **r,
 	} else {
 		i_LA_mostly(p, ptr, modd);
 		il_b(p, r, label_vmalloc_done);
-		i_daddiu(p, ptr, ptr, rel_lo(modd));
+		if (in_compat_space_p(modd))
+			i_addiu(p, ptr, ptr, rel_lo(modd));
+		else
+			i_daddiu(p, ptr, ptr, rel_lo(modd));
 	}
 
 	l_vmalloc(l, *p);
@@ -1106,7 +1121,10 @@ build_get_pgd_vmalloc64(u32 **p, struct label **l, struct reloc **r,
 	} else {
 		i_LA_mostly(p, ptr, swpd);
 		il_b(p, r, label_vmalloc_done);
-		i_daddiu(p, ptr, ptr, rel_lo(swpd));
+		if (in_compat_space_p(swpd))
+			i_addiu(p, ptr, ptr, rel_lo(swpd));
+		else
+			i_daddiu(p, ptr, ptr, rel_lo(swpd));
 	}
 }
 
diff --git a/include/asm-mips/delay.h b/include/asm-mips/delay.h
index de5105d05f1e..b0bccd2c4ed5 100644
--- a/include/asm-mips/delay.h
+++ b/include/asm-mips/delay.h
@@ -28,7 +28,7 @@ static inline void __delay(unsigned long loops)
 		"	.set	reorder					\n"
 		: "=r" (loops)
 		: "0" (loops));
-	else if (sizeof(long) == 8)
+	else if (sizeof(long) == 8 && !DADDI_WAR)
 		__asm__ __volatile__ (
 		"	.set	noreorder				\n"
 		"	.align	3					\n"
@@ -37,6 +37,15 @@ static inline void __delay(unsigned long loops)
 		"	.set	reorder					\n"
 		: "=r" (loops)
 		: "0" (loops));
+	else if (sizeof(long) == 8 && DADDI_WAR)
+		__asm__ __volatile__ (
+		"	.set	noreorder				\n"
+		"	.align	3					\n"
+		"1:	bnez	%0, 1b					\n"
+		"	dsubu	%0, %2					\n"
+		"	.set	reorder					\n"
+		: "=r" (loops)
+		: "0" (loops), "r" (1));
 }
 
 
diff --git a/include/asm-mips/stackframe.h b/include/asm-mips/stackframe.h
index fb41a8d76392..051e1af0bb95 100644
--- a/include/asm-mips/stackframe.h
+++ b/include/asm-mips/stackframe.h
@@ -6,6 +6,7 @@
  * Copyright (C) 1994, 95, 96, 99, 2001 Ralf Baechle
  * Copyright (C) 1994, 1995, 1996 Paul M. Antoine.
  * Copyright (C) 1999 Silicon Graphics, Inc.
+ * Copyright (C) 2007  Maciej W. Rozycki
  */
 #ifndef _ASM_STACKFRAME_H
 #define _ASM_STACKFRAME_H
@@ -145,8 +146,16 @@
 		.set	reorder
 		/* Called from user mode, new stack. */
 		get_saved_sp
+#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
 8:		move	k0, sp
 		PTR_SUBU sp, k1, PT_SIZE
+#else
+		.set	at=k0
+8:		PTR_SUBU k1, PT_SIZE
+		.set	noat
+		move	k0, sp
+		move	sp, k1
+#endif
 		LONG_S	k0, PT_R29(sp)
 		LONG_S	$3, PT_R3(sp)
 		/*
diff --git a/include/asm-mips/uaccess.h b/include/asm-mips/uaccess.h
index c30c718994c9..66523d610950 100644
--- a/include/asm-mips/uaccess.h
+++ b/include/asm-mips/uaccess.h
@@ -5,6 +5,7 @@
  *
  * Copyright (C) 1996, 1997, 1998, 1999, 2000, 03, 04 by Ralf Baechle
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 2007  Maciej W. Rozycki
  */
 #ifndef _ASM_UACCESS_H
 #define _ASM_UACCESS_H
@@ -387,6 +388,12 @@ extern void __put_user_unknown(void);
 	"jal\t" #destination "\n\t"
 #endif
 
+#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
+#define DADDI_SCRATCH "$0"
+#else
+#define DADDI_SCRATCH "$3"
+#endif
+
 extern size_t __copy_user(void *__to, const void *__from, size_t __n);
 
 #define __invoke_copy_to_user(to, from, n)				\
@@ -403,7 +410,7 @@ extern size_t __copy_user(void *__to, const void *__from, size_t __n);
 	: "+r" (__cu_to_r), "+r" (__cu_from_r), "+r" (__cu_len_r)	\
 	:								\
 	: "$8", "$9", "$10", "$11", "$12", "$15", "$24", "$31",		\
-	  "memory");							\
+	  DADDI_SCRATCH, "memory");					\
 	__cu_len_r;							\
 })
 
@@ -512,7 +519,7 @@ extern size_t __copy_user_inatomic(void *__to, const void *__from, size_t __n);
 	: "+r" (__cu_to_r), "+r" (__cu_from_r), "+r" (__cu_len_r)	\
 	:								\
 	: "$8", "$9", "$10", "$11", "$12", "$15", "$24", "$31",		\
-	  "memory");							\
+	  DADDI_SCRATCH, "memory");					\
 	__cu_len_r;							\
 })
 
@@ -535,7 +542,7 @@ extern size_t __copy_user_inatomic(void *__to, const void *__from, size_t __n);
 	: "+r" (__cu_to_r), "+r" (__cu_from_r), "+r" (__cu_len_r)	\
 	:								\
 	: "$8", "$9", "$10", "$11", "$12", "$15", "$24", "$31",		\
-	  "memory");							\
+	  DADDI_SCRATCH, "memory");					\
 	__cu_len_r;							\
 })
 
-- 
cgit v1.2.3-59-g8ed1b


From 8b6c2324bf2b023e26d53052bbcddcbf2f2c97ee Mon Sep 17 00:00:00 2001
From: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Date: Wed, 24 Oct 2007 23:16:56 +0900
Subject: [MIPS] cleanup tx39/tx49 setup code

Remove some unnecessary codes, includes and files.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/jmr3927/rbhma3100/setup.c                |   5 -
 arch/mips/tx4927/common/Makefile                   |   2 +-
 arch/mips/tx4927/common/tx4927_setup.c             | 186 ---------------------
 .../toshiba_rbtx4927/toshiba_rbtx4927_setup.c      |  41 +----
 arch/mips/tx4938/common/Makefile                   |   2 +-
 arch/mips/tx4938/common/setup.c                    |  45 -----
 arch/mips/tx4938/toshiba_rbtx4938/setup.c          |   6 +-
 7 files changed, 7 insertions(+), 280 deletions(-)
 delete mode 100644 arch/mips/tx4927/common/tx4927_setup.c
 delete mode 100644 arch/mips/tx4938/common/setup.c

(limited to 'arch')

diff --git a/arch/mips/jmr3927/rbhma3100/setup.c b/arch/mips/jmr3927/rbhma3100/setup.c
index 06e01c8f4e3a..75cfe6559005 100644
--- a/arch/mips/jmr3927/rbhma3100/setup.c
+++ b/arch/mips/jmr3927/rbhma3100/setup.c
@@ -29,21 +29,16 @@
 
 #include <linux/init.h>
 #include <linux/kernel.h>
-#include <linux/kdev_t.h>
 #include <linux/types.h>
 #include <linux/pci.h>
-#include <linux/ide.h>
 #include <linux/ioport.h>
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/platform_device.h>
 #ifdef CONFIG_SERIAL_TXX9
-#include <linux/tty.h>
-#include <linux/serial.h>
 #include <linux/serial_core.h>
 #endif
 
-#include <asm/addrspace.h>
 #include <asm/txx9tmr.h>
 #include <asm/reboot.h>
 #include <asm/jmr3927/jmr3927.h>
diff --git a/arch/mips/tx4927/common/Makefile b/arch/mips/tx4927/common/Makefile
index 18375787e094..e4a5e464b376 100644
--- a/arch/mips/tx4927/common/Makefile
+++ b/arch/mips/tx4927/common/Makefile
@@ -6,7 +6,7 @@
 # unless it's something special (ie not a .c file).
 #
 
-obj-y	+= tx4927_prom.o tx4927_setup.o tx4927_irq.o
+obj-y	+= tx4927_prom.o tx4927_irq.o
 
 obj-$(CONFIG_TOSHIBA_FPCIB0)	   += smsc_fdc37m81x.o
 obj-$(CONFIG_KGDB)                 += tx4927_dbgio.o
diff --git a/arch/mips/tx4927/common/tx4927_setup.c b/arch/mips/tx4927/common/tx4927_setup.c
deleted file mode 100644
index 36c5f200eb3d..000000000000
--- a/arch/mips/tx4927/common/tx4927_setup.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * Author: MontaVista Software, Inc.
- *         source@mvista.com
- *
- * Copyright 2001-2002 MontaVista Software Inc.
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License as published by the
- *  Free Software Foundation; either version 2 of the License, or (at your
- *  option) any later version.
- *
- *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/kernel_stat.h>
-#include <linux/module.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/types.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/timex.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/irq.h>
-#include <linux/bitops.h>
-#include <asm/bootinfo.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/mipsregs.h>
-#include <asm/system.h>
-#include <asm/time.h>
-#include <asm/tx4927/tx4927.h>
-
-
-#undef DEBUG
-
-void dump_cp0(char *key);
-
-
-void __init plat_mem_setup(void)
-{
-#ifdef CONFIG_TOSHIBA_RBTX4927
-	{
-		extern void toshiba_rbtx4927_setup(void);
-		toshiba_rbtx4927_setup();
-	}
-#endif
-}
-
-void __init plat_time_init(void)
-{
-#ifdef CONFIG_TOSHIBA_RBTX4927
-	{
-		extern void toshiba_rbtx4927_time_init(void);
-		toshiba_rbtx4927_time_init();
-	}
-#endif
-}
-
-#ifdef DEBUG
-void print_cp0(char *key, int num, char *name, u32 val)
-{
-	printk("%s cp0:%02d:%s=0x%08x\n", key, num, name, val);
-	return;
-}
-
-void
-dump_cp0(char *key)
-{
-	if (key == NULL)
-		key = "";
-
-	print_cp0(key, 0, "INDEX   ", read_c0_index());
-	print_cp0(key, 2, "ENTRYLO1", read_c0_entrylo0());
-	print_cp0(key, 3, "ENTRYLO2", read_c0_entrylo1());
-	print_cp0(key, 4, "CONTEXT ", read_c0_context());
-	print_cp0(key, 5, "PAGEMASK", read_c0_pagemask());
-	print_cp0(key, 6, "WIRED   ", read_c0_wired());
-	//print_cp0(key, 8, "BADVADDR",  read_c0_badvaddr());
-	print_cp0(key, 9, "COUNT   ", read_c0_count());
-	print_cp0(key, 10, "ENTRYHI ", read_c0_entryhi());
-	print_cp0(key, 11, "COMPARE ", read_c0_compare());
-	print_cp0(key, 12, "STATUS  ", read_c0_status());
-	print_cp0(key, 13, "CAUSE   ", read_c0_cause() & 0xffff87ff);
-	print_cp0(key, 16, "CONFIG  ", read_c0_config());
-	return;
-}
-
-void print_pic(char *key, unsigned long reg, char *name)
-{
-	printk(KERN_INFO "%s pic:0x%08lx:%s=0x%08x\n", key, reg, name,
-	       __raw_readl((void __iomem *)reg));
-	return;
-}
-
-
-void dump_pic(char *key)
-{
-	if (key == NULL)
-		key = "";
-
-	print_pic(key, 0xff1ff600, "IRDEN    ");
-	print_pic(key, 0xff1ff604, "IRDM0    ");
-	print_pic(key, 0xff1ff608, "IRDM1    ");
-
-	print_pic(key, 0xff1ff610, "IRLVL0   ");
-	print_pic(key, 0xff1ff614, "IRLVL1   ");
-	print_pic(key, 0xff1ff618, "IRLVL2   ");
-	print_pic(key, 0xff1ff61c, "IRLVL3   ");
-	print_pic(key, 0xff1ff620, "IRLVL4   ");
-	print_pic(key, 0xff1ff624, "IRLVL5   ");
-	print_pic(key, 0xff1ff628, "IRLVL6   ");
-	print_pic(key, 0xff1ff62c, "IRLVL7   ");
-
-	print_pic(key, 0xff1ff640, "IRMSK    ");
-	print_pic(key, 0xff1ff660, "IREDC    ");
-	print_pic(key, 0xff1ff680, "IRPND    ");
-	print_pic(key, 0xff1ff6a0, "IRCS     ");
-
-	print_pic(key, 0xff1ff514, "IRFLAG1  ");	/* don't read IRLAG0 -- it hangs system */
-
-	print_pic(key, 0xff1ff518, "IRPOL    ");
-	print_pic(key, 0xff1ff51c, "IRRCNT   ");
-	print_pic(key, 0xff1ff520, "IRMASKINT");
-	print_pic(key, 0xff1ff524, "IRMASKEXT");
-
-	return;
-}
-
-
-void print_addr(char *hdr, char *key, unsigned long addr)
-{
-	printk(KERN_INFO "%s %s:0x%08lx=0x%08x\n", hdr, key, addr,
-	       __raw_readl((void __iomem *)addr));
-	return;
-}
-
-
-void dump_180(char *key)
-{
-	u32 i;
-
-	for (i = 0x80000180; i < 0x80000180 + 0x80; i += 4) {
-		print_addr("180", key, i);
-	}
-	return;
-}
-
-
-void dump_eh0(char *key)
-{
-	int i;
-	extern unsigned long exception_handlers[];
-
-	for (i = (int) exception_handlers;
-	     i < (int) (exception_handlers + 20); i += 4) {
-		print_addr("eh0", key, i);
-	}
-
-	return;
-}
-
-void pk0(void)
-{
-	volatile u32 val;
-
-	__asm__ __volatile__("ori %0, $26, 0":"=r"(val)
-	    );
-	printk("k0=[0x%08x]\n", val);
-}
-#endif
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
index 0299595ce1c4..c29a5283237b 100644
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
@@ -45,27 +45,18 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
 #include <linux/ioport.h>
-#include <linux/sched.h>
 #include <linux/interrupt.h>
 #include <linux/pci.h>
-#include <linux/timex.h>
 #include <linux/pm.h>
 #include <linux/platform_device.h>
 
 #include <asm/bootinfo.h>
-#include <asm/page.h>
 #include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/irq_regs.h>
 #include <asm/processor.h>
 #include <asm/reboot.h>
 #include <asm/time.h>
 #include <asm/txx9tmr.h>
-#include <linux/bootmem.h>
-#include <linux/blkdev.h>
 #ifdef CONFIG_TOSHIBA_FPCIB0
 #include <asm/tx4927/smsc_fdc37m81x.h>
 #endif
@@ -73,42 +64,26 @@
 #ifdef CONFIG_PCI
 #include <asm/tx4927/tx4927_pci.h>
 #endif
-#ifdef CONFIG_BLK_DEV_IDEPCI
-#include <linux/hdreg.h>
-#include <linux/ide.h>
-#endif
 #ifdef CONFIG_SERIAL_TXX9
-#include <linux/tty.h>
-#include <linux/serial.h>
 #include <linux/serial_core.h>
 #endif
 
 #undef TOSHIBA_RBTX4927_SETUP_DEBUG
 
 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
-#define TOSHIBA_RBTX4927_SETUP_NONE        0x00000000
-
-#define TOSHIBA_RBTX4927_SETUP_INFO        ( 1 <<  0 )
-#define TOSHIBA_RBTX4927_SETUP_WARN        ( 1 <<  1 )
-#define TOSHIBA_RBTX4927_SETUP_EROR        ( 1 <<  2 )
-
-#define TOSHIBA_RBTX4927_SETUP_EFWFU       ( 1 <<  3 )
 #define TOSHIBA_RBTX4927_SETUP_SETUP       ( 1 <<  4 )
 #define TOSHIBA_RBTX4927_SETUP_PCIBIOS     ( 1 <<  7 )
 #define TOSHIBA_RBTX4927_SETUP_PCI1        ( 1 <<  8 )
 #define TOSHIBA_RBTX4927_SETUP_PCI2        ( 1 <<  9 )
-#define TOSHIBA_RBTX4927_SETUP_PCI66       ( 1 << 10 )
 
 #define TOSHIBA_RBTX4927_SETUP_ALL         0xffffffff
 #endif
 
 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
 static const u32 toshiba_rbtx4927_setup_debug_flag =
-    (TOSHIBA_RBTX4927_SETUP_NONE | TOSHIBA_RBTX4927_SETUP_INFO |
-     TOSHIBA_RBTX4927_SETUP_WARN | TOSHIBA_RBTX4927_SETUP_EROR |
-     TOSHIBA_RBTX4927_SETUP_EFWFU | TOSHIBA_RBTX4927_SETUP_SETUP |
+    (TOSHIBA_RBTX4927_SETUP_SETUP |
      | TOSHIBA_RBTX4927_SETUP_PCIBIOS | TOSHIBA_RBTX4927_SETUP_PCI1 |
-     TOSHIBA_RBTX4927_SETUP_PCI2 | TOSHIBA_RBTX4927_SETUP_PCI66);
+     TOSHIBA_RBTX4927_SETUP_PCI2);
 #endif
 
 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
@@ -718,7 +693,7 @@ void toshiba_rbtx4927_power_off(void)
 	/* no return */
 }
 
-void __init toshiba_rbtx4927_setup(void)
+void __init plat_mem_setup(void)
 {
 	int i;
 	u32 cp0_config;
@@ -741,13 +716,6 @@ void __init toshiba_rbtx4927_setup(void)
 	cp0_config = cp0_config & ~(TX49_CONF_IC | TX49_CONF_DC);
 	write_c0_config(cp0_config);
 
-#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
-	{
-		extern void dump_cp0(char *);
-		dump_cp0("toshiba_rbtx4927_early_fw_fixup");
-	}
-#endif
-
 	set_io_port_base(KSEG1 + TBTX4927_ISA_IO_OFFSET);
 	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
 				       ":mips_io_port_base=0x%08lx\n",
@@ -936,8 +904,7 @@ void __init toshiba_rbtx4927_setup(void)
 			       "+\n");
 }
 
-void __init
-toshiba_rbtx4927_time_init(void)
+void __init plat_time_init(void)
 {
 	mips_hpt_frequency = tx4927_cpu_clock / 2;
 	if (tx4927_ccfgptr->ccfg & TX4927_CCFG_TINTDIS)
diff --git a/arch/mips/tx4938/common/Makefile b/arch/mips/tx4938/common/Makefile
index 8352eca67906..c5c6ceaa71ca 100644
--- a/arch/mips/tx4938/common/Makefile
+++ b/arch/mips/tx4938/common/Makefile
@@ -6,7 +6,7 @@
 # unless it's something special (ie not a .c file).
 #
 
-obj-y	+= prom.o setup.o irq.o
+obj-y	+= prom.o irq.o
 obj-$(CONFIG_KGDB) += dbgio.o
 
 EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/tx4938/common/setup.c b/arch/mips/tx4938/common/setup.c
deleted file mode 100644
index 3ba4101d141e..000000000000
--- a/arch/mips/tx4938/common/setup.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * linux/arch/mips/tx4938/common/setup.c
- *
- * common tx4938 setup routines
- *
- * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
- * terms of the GNU General Public License version 2. This program is
- * licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
- */
-
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/kernel_stat.h>
-#include <linux/module.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/types.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/timex.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/irq.h>
-#include <linux/bitops.h>
-#include <asm/bootinfo.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/mipsregs.h>
-#include <asm/system.h>
-#include <asm/time.h>
-#include <asm/tx4938/rbtx4938.h>
-
-extern void toshiba_rbtx4938_setup(void);
-
-void __init tx4938_setup(void);
-void dump_cp0(char *key);
-
-void __init
-plat_mem_setup(void)
-{
-	toshiba_rbtx4938_setup();
-}
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/setup.c b/arch/mips/tx4938/toshiba_rbtx4938/setup.c
index 632e5d201353..2333d9ff879d 100644
--- a/arch/mips/tx4938/toshiba_rbtx4938/setup.c
+++ b/arch/mips/tx4938/toshiba_rbtx4938/setup.c
@@ -24,16 +24,12 @@
 
 #include <asm/wbflush.h>
 #include <asm/reboot.h>
-#include <asm/irq.h>
 #include <asm/time.h>
 #include <asm/txx9tmr.h>
-#include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/bootinfo.h>
 #include <asm/tx4938/rbtx4938.h>
 #ifdef CONFIG_SERIAL_TXX9
-#include <linux/tty.h>
-#include <linux/serial.h>
 #include <linux/serial_core.h>
 #endif
 #include <linux/spi/spi.h>
@@ -855,7 +851,7 @@ void __init plat_time_init(void)
 				     txx9_gbus_clock / 2);
 }
 
-void __init toshiba_rbtx4938_setup(void)
+void __init plat_mem_setup(void)
 {
 	unsigned long long pcfg;
 	char *argptr;
-- 
cgit v1.2.3-59-g8ed1b


From 417345d8f5bacc291138c99a292a8ca69947530e Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 29 Oct 2007 14:23:43 +0000
Subject: [MIPS] CFE: Make code remotely resemble Linux code.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/fw/cfe/cfe_api.c          | 184 +++++++++++------------------------
 arch/mips/fw/cfe/cfe_api_int.h      | 186 ++++++++++++++++++------------------
 include/asm-mips/fw/cfe/cfe_api.h   |  87 +++--------------
 include/asm-mips/fw/cfe/cfe_error.h |  19 ++--
 4 files changed, 167 insertions(+), 309 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/fw/cfe/cfe_api.c b/arch/mips/fw/cfe/cfe_api.c
index a9f69e4e40ac..717db74f7c6e 100644
--- a/arch/mips/fw/cfe/cfe_api.c
+++ b/arch/mips/fw/cfe/cfe_api.c
@@ -16,19 +16,16 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
 
-/*  *********************************************************************
-    *
-    *  Broadcom Common Firmware Environment (CFE)
-    *
-    *  Device Function stubs			File: cfe_api.c
-    *
-    *  This module contains device function stubs (small routines to
-    *  call the standard "iocb" interface entry point to CFE).
-    *  There should be one routine here per iocb function call.
-    *
-    *  Authors:  Mitch Lichtenberg, Chris Demetriou
-    *
-    ********************************************************************* */
+/*
+ *
+ * Broadcom Common Firmware Environment (CFE)
+ *
+ * This module contains device function stubs (small routines to
+ * call the standard "iocb" interface entry point to CFE).
+ * There should be one routine here per iocb function call.
+ *
+ * Authors:  Mitch Lichtenberg, Chris Demetriou
+ */
 
 #include <asm/fw/cfe/cfe_api.h>
 #include "cfe_api_int.h"
@@ -37,12 +34,8 @@
 #define XPTR_FROM_NATIVE(n)	((cfe_xptr_t) (intptr_t) (n))
 #define NATIVE_FROM_XPTR(x)	((void *) (intptr_t) (x))
 
-#ifdef CFE_API_IMPL_NAMESPACE
-#define cfe_iocb_dispatch(a)		__cfe_iocb_dispatch(a)
-#endif
-int cfe_iocb_dispatch(cfe_xiocb_t * xiocb);
+int cfe_iocb_dispatch(struct cfe_xiocb *xiocb);
 
-#if defined(CFE_API_common) || defined(CFE_API_ALL)
 /*
  * Declare the dispatch function with args of "intptr_t".
  * This makes sure whatever model we're compiling in
@@ -53,27 +46,25 @@ int cfe_iocb_dispatch(cfe_xiocb_t * xiocb);
  */
 
 static int (*cfe_dispfunc) (intptr_t handle, intptr_t xiocb) = 0;
-static cfe_xuint_t cfe_handle = 0;
+static u64 cfe_handle = 0;
 
-int cfe_init(cfe_xuint_t handle, cfe_xuint_t ept)
+int cfe_init(u64 handle, u64 ept)
 {
 	cfe_dispfunc = NATIVE_FROM_XPTR(ept);
 	cfe_handle = handle;
 	return 0;
 }
 
-int cfe_iocb_dispatch(cfe_xiocb_t * xiocb)
+int cfe_iocb_dispatch(struct cfe_xiocb * xiocb)
 {
 	if (!cfe_dispfunc)
 		return -1;
 	return (*cfe_dispfunc) ((intptr_t) cfe_handle, (intptr_t) xiocb);
 }
-#endif				/* CFE_API_common || CFE_API_ALL */
 
-#if defined(CFE_API_close) || defined(CFE_API_ALL)
 int cfe_close(int handle)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_DEV_CLOSE;
 	xiocb.xiocb_status = 0;
@@ -86,18 +77,16 @@ int cfe_close(int handle)
 	return xiocb.xiocb_status;
 
 }
-#endif				/* CFE_API_close || CFE_API_ALL */
 
-#if defined(CFE_API_cpu_start) || defined(CFE_API_ALL)
 int cfe_cpu_start(int cpu, void (*fn) (void), long sp, long gp, long a1)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_FW_CPUCTL;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = 0;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_cpuctl_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_cpuctl);
 	xiocb.plist.xiocb_cpuctl.cpu_number = cpu;
 	xiocb.plist.xiocb_cpuctl.cpu_command = CFE_CPU_CMD_START;
 	xiocb.plist.xiocb_cpuctl.gp_val = gp;
@@ -109,18 +98,16 @@ int cfe_cpu_start(int cpu, void (*fn) (void), long sp, long gp, long a1)
 
 	return xiocb.xiocb_status;
 }
-#endif				/* CFE_API_cpu_start || CFE_API_ALL */
 
-#if defined(CFE_API_cpu_stop) || defined(CFE_API_ALL)
 int cfe_cpu_stop(int cpu)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_FW_CPUCTL;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = 0;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_cpuctl_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_cpuctl);
 	xiocb.plist.xiocb_cpuctl.cpu_number = cpu;
 	xiocb.plist.xiocb_cpuctl.cpu_command = CFE_CPU_CMD_STOP;
 
@@ -128,18 +115,16 @@ int cfe_cpu_stop(int cpu)
 
 	return xiocb.xiocb_status;
 }
-#endif				/* CFE_API_cpu_stop || CFE_API_ALL */
 
-#if defined(CFE_API_enumenv) || defined(CFE_API_ALL)
 int cfe_enumenv(int idx, char *name, int namelen, char *val, int vallen)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_ENV_SET;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = 0;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_envbuf_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_envbuf);
 	xiocb.plist.xiocb_envbuf.enum_idx = idx;
 	xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name);
 	xiocb.plist.xiocb_envbuf.name_length = namelen;
@@ -150,20 +135,17 @@ int cfe_enumenv(int idx, char *name, int namelen, char *val, int vallen)
 
 	return xiocb.xiocb_status;
 }
-#endif				/* CFE_API_enumenv || CFE_API_ALL */
 
-#if defined(CFE_API_enummem) || defined(CFE_API_ALL)
 int
-cfe_enummem(int idx, int flags, cfe_xuint_t * start, cfe_xuint_t * length,
-	    cfe_xuint_t * type)
+cfe_enummem(int idx, int flags, u64 *start, u64 *length, u64 *type)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_FW_MEMENUM;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = 0;
 	xiocb.xiocb_flags = flags;
-	xiocb.xiocb_psize = sizeof(xiocb_meminfo_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_meminfo);
 	xiocb.plist.xiocb_meminfo.mi_idx = idx;
 
 	cfe_iocb_dispatch(&xiocb);
@@ -177,30 +159,26 @@ cfe_enummem(int idx, int flags, cfe_xuint_t * start, cfe_xuint_t * length,
 
 	return 0;
 }
-#endif				/* CFE_API_enummem || CFE_API_ALL */
 
-#if defined(CFE_API_exit) || defined(CFE_API_ALL)
 int cfe_exit(int warm, int status)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_FW_RESTART;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = 0;
 	xiocb.xiocb_flags = warm ? CFE_FLG_WARMSTART : 0;
-	xiocb.xiocb_psize = sizeof(xiocb_exitstat_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_exitstat);
 	xiocb.plist.xiocb_exitstat.status = status;
 
 	cfe_iocb_dispatch(&xiocb);
 
 	return xiocb.xiocb_status;
 }
-#endif				/* CFE_API_exit || CFE_API_ALL */
 
-#if defined(CFE_API_flushcache) || defined(CFE_API_ALL)
 int cfe_flushcache(int flg)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_FW_FLUSHCACHE;
 	xiocb.xiocb_status = 0;
@@ -212,34 +190,30 @@ int cfe_flushcache(int flg)
 
 	return xiocb.xiocb_status;
 }
-#endif				/* CFE_API_flushcache || CFE_API_ALL */
 
-#if defined(CFE_API_getdevinfo) || defined(CFE_API_ALL)
 int cfe_getdevinfo(char *name)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_DEV_GETINFO;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = 0;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_buffer);
 	xiocb.plist.xiocb_buffer.buf_offset = 0;
 	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(name);
-	xiocb.plist.xiocb_buffer.buf_length = cfe_strlen(name);
+	xiocb.plist.xiocb_buffer.buf_length = strlen(name);
 
 	cfe_iocb_dispatch(&xiocb);
 
 	if (xiocb.xiocb_status < 0)
 		return xiocb.xiocb_status;
-	return xiocb.plist.xiocb_buffer.buf_devflags;
+	return xiocb.plist.xiocb_buffer.buf_ioctlcmd;
 }
-#endif				/* CFE_API_getdevinfo || CFE_API_ALL */
 
-#if defined(CFE_API_getenv) || defined(CFE_API_ALL)
 int cfe_getenv(char *name, char *dest, int destlen)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	*dest = 0;
 
@@ -247,10 +221,10 @@ int cfe_getenv(char *name, char *dest, int destlen)
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = 0;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_envbuf_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_envbuf);
 	xiocb.plist.xiocb_envbuf.enum_idx = 0;
 	xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name);
-	xiocb.plist.xiocb_envbuf.name_length = cfe_strlen(name);
+	xiocb.plist.xiocb_envbuf.name_length = strlen(name);
 	xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(dest);
 	xiocb.plist.xiocb_envbuf.val_length = destlen;
 
@@ -258,18 +232,16 @@ int cfe_getenv(char *name, char *dest, int destlen)
 
 	return xiocb.xiocb_status;
 }
-#endif				/* CFE_API_getenv || CFE_API_ALL */
 
-#if defined(CFE_API_getfwinfo) || defined(CFE_API_ALL)
 int cfe_getfwinfo(cfe_fwinfo_t * info)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_FW_GETINFO;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = 0;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_fwinfo_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_fwinfo);
 
 	cfe_iocb_dispatch(&xiocb);
 
@@ -292,12 +264,10 @@ int cfe_getfwinfo(cfe_fwinfo_t * info)
 
 	return 0;
 }
-#endif				/* CFE_API_getfwinfo || CFE_API_ALL */
 
-#if defined(CFE_API_getstdhandle) || defined(CFE_API_ALL)
 int cfe_getstdhandle(int flg)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_DEV_GETHANDLE;
 	xiocb.xiocb_status = 0;
@@ -311,23 +281,17 @@ int cfe_getstdhandle(int flg)
 		return xiocb.xiocb_status;
 	return xiocb.xiocb_handle;
 }
-#endif				/* CFE_API_getstdhandle || CFE_API_ALL */
 
-#if defined(CFE_API_getticks) || defined(CFE_API_ALL)
 int64_t
-#ifdef CFE_API_IMPL_NAMESPACE
-__cfe_getticks(void)
-#else
 cfe_getticks(void)
-#endif
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_FW_GETTIME;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = 0;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_time_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_time);
 	xiocb.plist.xiocb_time.ticks = 0;
 
 	cfe_iocb_dispatch(&xiocb);
@@ -335,18 +299,16 @@ cfe_getticks(void)
 	return xiocb.plist.xiocb_time.ticks;
 
 }
-#endif				/* CFE_API_getticks || CFE_API_ALL */
 
-#if defined(CFE_API_inpstat) || defined(CFE_API_ALL)
 int cfe_inpstat(int handle)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_DEV_INPSTAT;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = handle;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_inpstat_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_inpstat);
 	xiocb.plist.xiocb_inpstat.inp_status = 0;
 
 	cfe_iocb_dispatch(&xiocb);
@@ -355,20 +317,18 @@ int cfe_inpstat(int handle)
 		return xiocb.xiocb_status;
 	return xiocb.plist.xiocb_inpstat.inp_status;
 }
-#endif				/* CFE_API_inpstat || CFE_API_ALL */
 
-#if defined(CFE_API_ioctl) || defined(CFE_API_ALL)
 int
 cfe_ioctl(int handle, unsigned int ioctlnum, unsigned char *buffer,
-	  int length, int *retlen, cfe_xuint_t offset)
+	  int length, int *retlen, u64 offset)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_DEV_IOCTL;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = handle;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_buffer);
 	xiocb.plist.xiocb_buffer.buf_offset = offset;
 	xiocb.plist.xiocb_buffer.buf_ioctlcmd = ioctlnum;
 	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer);
@@ -380,21 +340,19 @@ cfe_ioctl(int handle, unsigned int ioctlnum, unsigned char *buffer,
 		*retlen = xiocb.plist.xiocb_buffer.buf_retlen;
 	return xiocb.xiocb_status;
 }
-#endif				/* CFE_API_ioctl || CFE_API_ALL */
 
-#if defined(CFE_API_open) || defined(CFE_API_ALL)
 int cfe_open(char *name)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_DEV_OPEN;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = 0;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_buffer);
 	xiocb.plist.xiocb_buffer.buf_offset = 0;
 	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(name);
-	xiocb.plist.xiocb_buffer.buf_length = cfe_strlen(name);
+	xiocb.plist.xiocb_buffer.buf_length = strlen(name);
 
 	cfe_iocb_dispatch(&xiocb);
 
@@ -402,27 +360,21 @@ int cfe_open(char *name)
 		return xiocb.xiocb_status;
 	return xiocb.xiocb_handle;
 }
-#endif				/* CFE_API_open || CFE_API_ALL */
 
-#if defined(CFE_API_read) || defined(CFE_API_ALL)
 int cfe_read(int handle, unsigned char *buffer, int length)
 {
 	return cfe_readblk(handle, 0, buffer, length);
 }
-#endif				/* CFE_API_read || CFE_API_ALL */
 
-#if defined(CFE_API_readblk) || defined(CFE_API_ALL)
-int
-cfe_readblk(int handle, cfe_xint_t offset, unsigned char *buffer,
-	    int length)
+int cfe_readblk(int handle, s64 offset, unsigned char *buffer, int length)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_DEV_READ;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = handle;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_buffer);
 	xiocb.plist.xiocb_buffer.buf_offset = offset;
 	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer);
 	xiocb.plist.xiocb_buffer.buf_length = length;
@@ -433,62 +385,41 @@ cfe_readblk(int handle, cfe_xint_t offset, unsigned char *buffer,
 		return xiocb.xiocb_status;
 	return xiocb.plist.xiocb_buffer.buf_retlen;
 }
-#endif				/* CFE_API_readblk || CFE_API_ALL */
 
-#if defined(CFE_API_setenv) || defined(CFE_API_ALL)
 int cfe_setenv(char *name, char *val)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_ENV_SET;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = 0;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_envbuf_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_envbuf);
 	xiocb.plist.xiocb_envbuf.enum_idx = 0;
 	xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name);
-	xiocb.plist.xiocb_envbuf.name_length = cfe_strlen(name);
+	xiocb.plist.xiocb_envbuf.name_length = strlen(name);
 	xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(val);
-	xiocb.plist.xiocb_envbuf.val_length = cfe_strlen(val);
+	xiocb.plist.xiocb_envbuf.val_length = strlen(val);
 
 	cfe_iocb_dispatch(&xiocb);
 
 	return xiocb.xiocb_status;
 }
-#endif				/* CFE_API_setenv || CFE_API_ALL */
-
-#if (defined(CFE_API_strlen) || defined(CFE_API_ALL)) \
-    && !defined(CFE_API_STRLEN_CUSTOM)
-int cfe_strlen(char *name)
-{
-	int count = 0;
-
-	while (*name++)
-		count++;
 
-	return count;
-}
-#endif				/* CFE_API_strlen || CFE_API_ALL */
-
-#if defined(CFE_API_write) || defined(CFE_API_ALL)
 int cfe_write(int handle, unsigned char *buffer, int length)
 {
 	return cfe_writeblk(handle, 0, buffer, length);
 }
-#endif				/* CFE_API_write || CFE_API_ALL */
 
-#if defined(CFE_API_writeblk) || defined(CFE_API_ALL)
-int
-cfe_writeblk(int handle, cfe_xint_t offset, unsigned char *buffer,
-	     int length)
+int cfe_writeblk(int handle, s64 offset, unsigned char *buffer, int length)
 {
-	cfe_xiocb_t xiocb;
+	struct cfe_xiocb xiocb;
 
 	xiocb.xiocb_fcode = CFE_CMD_DEV_WRITE;
 	xiocb.xiocb_status = 0;
 	xiocb.xiocb_handle = handle;
 	xiocb.xiocb_flags = 0;
-	xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
+	xiocb.xiocb_psize = sizeof(struct xiocb_buffer);
 	xiocb.plist.xiocb_buffer.buf_offset = offset;
 	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer);
 	xiocb.plist.xiocb_buffer.buf_length = length;
@@ -499,4 +430,3 @@ cfe_writeblk(int handle, cfe_xint_t offset, unsigned char *buffer,
 		return xiocb.xiocb_status;
 	return xiocb.plist.xiocb_buffer.buf_retlen;
 }
-#endif				/* CFE_API_writeblk || CFE_API_ALL */
diff --git a/arch/mips/fw/cfe/cfe_api_int.h b/arch/mips/fw/cfe/cfe_api_int.h
index f7e5a64b55f3..d9759e646956 100644
--- a/arch/mips/fw/cfe/cfe_api_int.h
+++ b/arch/mips/fw/cfe/cfe_api_int.h
@@ -15,28 +15,12 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
-
-/*  *********************************************************************
-    *
-    *  Broadcom Common Firmware Environment (CFE)
-    *
-    *  Device function prototypes		File: cfe_api_int.h
-    *
-    *  This header defines all internal types and macros for the
-    *  library.  This is stuff that's not exported to an app
-    *  using the library.
-    *
-    *  Authors:  Mitch Lichtenberg, Chris Demetriou
-    *
-    ********************************************************************* */
-
 #ifndef CFE_API_INT_H
 #define CFE_API_INT_H
 
-/*  *********************************************************************
-    *  Constants
-    ********************************************************************* */
-
+/*
+ * Constants.
+ */
 #define CFE_CMD_FW_GETINFO	0
 #define CFE_CMD_FW_RESTART	1
 #define CFE_CMD_FW_BOOT		2
@@ -64,89 +48,101 @@
 
 #define CFE_CMD_VENDOR_USE	0x8000	/* codes above this are for customer use */
 
-/*  *********************************************************************
-    *  Structures
-    ********************************************************************* */
+/*
+ * Structures.
+ */
 
-typedef uint64_t cfe_xuint_t;
-typedef int64_t cfe_xint_t;
-typedef int64_t cfe_xptr_t;
+/* eeek, signed "pointers" */
+typedef s64 cfe_xptr_t;
 
-typedef struct xiocb_buffer_s {
-	cfe_xuint_t buf_offset;		/* offset on device (bytes) */
+struct xiocb_buffer {
+	u64 buf_offset;		/* offset on device (bytes) */
 	cfe_xptr_t  buf_ptr;		/* pointer to a buffer */
-	cfe_xuint_t buf_length;		/* length of this buffer */
-	cfe_xuint_t buf_retlen;		/* returned length (for read ops) */
-	cfe_xuint_t buf_ioctlcmd;	/* IOCTL command (used only for IOCTLs) */
-} xiocb_buffer_t;
-
-#define buf_devflags buf_ioctlcmd	/* returned device info flags */
+	u64 buf_length;		/* length of this buffer */
+	u64 buf_retlen;		/* returned length (for read ops) */
+	u64 buf_ioctlcmd;	/* IOCTL command (used only for IOCTLs) */
+};
 
-typedef struct xiocb_inpstat_s {
-	cfe_xuint_t inp_status;		/* 1 means input available */
-} xiocb_inpstat_t;
+struct xiocb_inpstat {
+	u64 inp_status;		/* 1 means input available */
+};
 
-typedef struct xiocb_envbuf_s {
-	cfe_xint_t enum_idx;		/* 0-based enumeration index */
+struct xiocb_envbuf {
+	s64 enum_idx;		/* 0-based enumeration index */
 	cfe_xptr_t name_ptr;		/* name string buffer */
-	cfe_xint_t name_length;		/* size of name buffer */
+	s64 name_length;		/* size of name buffer */
 	cfe_xptr_t val_ptr;		/* value string buffer */
-	cfe_xint_t val_length;		/* size of value string buffer */
-} xiocb_envbuf_t;
-
-typedef struct xiocb_cpuctl_s {
-	cfe_xuint_t cpu_number;		/* cpu number to control */
-	cfe_xuint_t cpu_command;	/* command to issue to CPU */
-	cfe_xuint_t start_addr;		/* CPU start address */
-	cfe_xuint_t gp_val;		/* starting GP value */
-	cfe_xuint_t sp_val;		/* starting SP value */
-	cfe_xuint_t a1_val;		/* starting A1 value */
-} xiocb_cpuctl_t;
-
-typedef struct xiocb_time_s {
-	cfe_xint_t ticks;		/* current time in ticks */
-} xiocb_time_t;
-
-typedef struct xiocb_exitstat_s {
-	cfe_xint_t status;
-} xiocb_exitstat_t;
-
-typedef struct xiocb_meminfo_s {
-	cfe_xint_t mi_idx;		/* 0-based enumeration index */
-	cfe_xint_t mi_type;		/* type of memory block */
-	cfe_xuint_t mi_addr;		/* physical start address */
-	cfe_xuint_t mi_size;		/* block size */
-} xiocb_meminfo_t;
-
-typedef struct xiocb_fwinfo_s {
-	cfe_xint_t fwi_version;		/* major, minor, eco version */
-	cfe_xint_t fwi_totalmem;	/* total installed mem */
-	cfe_xint_t fwi_flags;		/* various flags */
-	cfe_xint_t fwi_boardid;		/* board ID */
-	cfe_xint_t fwi_bootarea_va;	/* VA of boot area */
-	cfe_xint_t fwi_bootarea_pa;	/* PA of boot area */
-	cfe_xint_t fwi_bootarea_size;	/* size of boot area */
-	cfe_xint_t fwi_reserved1;
-	cfe_xint_t fwi_reserved2;
-	cfe_xint_t fwi_reserved3;
-} xiocb_fwinfo_t;
-
-typedef struct cfe_xiocb_s {
-	cfe_xuint_t xiocb_fcode;	/* IOCB function code */
-	cfe_xint_t xiocb_status;	/* return status */
-	cfe_xint_t xiocb_handle;	/* file/device handle */
-	cfe_xuint_t xiocb_flags;	/* flags for this IOCB */
-	cfe_xuint_t xiocb_psize;	/* size of parameter list */
+	s64 val_length;		/* size of value string buffer */
+};
+
+struct xiocb_cpuctl {
+	u64 cpu_number;		/* cpu number to control */
+	u64 cpu_command;	/* command to issue to CPU */
+	u64 start_addr;		/* CPU start address */
+	u64 gp_val;		/* starting GP value */
+	u64 sp_val;		/* starting SP value */
+	u64 a1_val;		/* starting A1 value */
+};
+
+struct xiocb_time {
+	s64 ticks;		/* current time in ticks */
+};
+
+struct xiocb_exitstat{
+	s64 status;
+};
+
+struct xiocb_meminfo {
+	s64 mi_idx;		/* 0-based enumeration index */
+	s64 mi_type;		/* type of memory block */
+	u64 mi_addr;		/* physical start address */
+	u64 mi_size;		/* block size */
+};
+
+struct xiocb_fwinfo {
+	s64 fwi_version;		/* major, minor, eco version */
+	s64 fwi_totalmem;	/* total installed mem */
+	s64 fwi_flags;		/* various flags */
+	s64 fwi_boardid;		/* board ID */
+	s64 fwi_bootarea_va;	/* VA of boot area */
+	s64 fwi_bootarea_pa;	/* PA of boot area */
+	s64 fwi_bootarea_size;	/* size of boot area */
+	s64 fwi_reserved1;
+	s64 fwi_reserved2;
+	s64 fwi_reserved3;
+};
+
+struct cfe_xiocb {
+	u64 xiocb_fcode;	/* IOCB function code */
+	s64 xiocb_status;	/* return status */
+	s64 xiocb_handle;	/* file/device handle */
+	u64 xiocb_flags;	/* flags for this IOCB */
+	u64 xiocb_psize;	/* size of parameter list */
 	union {
-		xiocb_buffer_t xiocb_buffer;	/* buffer parameters */
-		xiocb_inpstat_t xiocb_inpstat;	/* input status parameters */
-		xiocb_envbuf_t xiocb_envbuf;	/* environment function parameters */
-		xiocb_cpuctl_t xiocb_cpuctl;	/* CPU control parameters */
-		xiocb_time_t xiocb_time;	/* timer parameters */
-		xiocb_meminfo_t xiocb_meminfo;	/* memory arena info parameters */
-		xiocb_fwinfo_t xiocb_fwinfo;	/* firmware information */
-		xiocb_exitstat_t xiocb_exitstat;	/* Exit Status */
+		/* buffer parameters */
+		struct xiocb_buffer xiocb_buffer;
+
+		/* input status parameters */
+		struct xiocb_inpstat xiocb_inpstat;
+
+		/* environment function parameters */
+		struct xiocb_envbuf xiocb_envbuf;
+
+		/* CPU control parameters */
+		struct xiocb_cpuctl xiocb_cpuctl;
+
+		/* timer parameters */
+		struct xiocb_time xiocb_time;
+
+		/* memory arena info parameters */
+		struct xiocb_meminfo xiocb_meminfo;
+
+		/* firmware information */
+		struct xiocb_fwinfo xiocb_fwinfo;
+
+		/* Exit Status */
+		struct xiocb_exitstat xiocb_exitstat;
 	} plist;
-} cfe_xiocb_t;
+};
 
-#endif				/* CFE_API_INT_H */
+#endif /* CFE_API_INT_H */
diff --git a/include/asm-mips/fw/cfe/cfe_api.h b/include/asm-mips/fw/cfe/cfe_api.h
index 1003e7156bfc..0995575db320 100644
--- a/include/asm-mips/fw/cfe/cfe_api.h
+++ b/include/asm-mips/fw/cfe/cfe_api.h
@@ -15,49 +15,27 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
-
-/*  *********************************************************************
-    *
-    *  Broadcom Common Firmware Environment (CFE)
-    *
-    *  Device function prototypes		File: cfe_api.h
-    *
-    *  This file contains declarations for doing callbacks to
-    *  cfe from an application.  It should be the only header
-    *  needed by the application to use this library
-    *
-    *  Authors:  Mitch Lichtenberg, Chris Demetriou
-    *
-    ********************************************************************* */
-
+/*
+ * Broadcom Common Firmware Environment (CFE)
+ *
+ * This file contains declarations for doing callbacks to
+ * cfe from an application.  It should be the only header
+ * needed by the application to use this library
+ *
+ * Authors:  Mitch Lichtenberg, Chris Demetriou
+ */
 #ifndef CFE_API_H
 #define CFE_API_H
 
-/*
- * Apply customizations here for different OSes.  These need to:
- *	* typedef uint64_t, int64_t, intptr_t, uintptr_t.
- *	* define cfe_strlen() if use of an existing function is desired.
- *	* define CFE_API_IMPL_NAMESPACE if API functions are to use
- *	  names in the implementation namespace.
- * Also, optionally, if the build environment does not do so automatically,
- * CFE_API_* can be defined here as desired.
- */
-/* Begin customization. */
 #include <linux/types.h>
 #include <linux/string.h>
 
 typedef long intptr_t;
 
-#define cfe_strlen strlen
 
-#define CFE_API_ALL
-#define CFE_API_STRLEN_CUSTOM
-/* End customization. */
-
-
-/*  *********************************************************************
-    *  Constants
-    ********************************************************************* */
+/*
+ * Constants
+ */
 
 /* Seal indicating CFE's presence, passed to user program. */
 #define CFE_EPTSEAL 0x43464531
@@ -108,55 +86,14 @@ typedef struct {
 } cfe_fwinfo_t;
 
 
-/*
- * cfe_strlen is handled specially: If already defined, it has been
- * overridden in this environment with a standard strlen-like function.
- */
-#ifdef cfe_strlen
-# define CFE_API_STRLEN_CUSTOM
-#else
-# ifdef CFE_API_IMPL_NAMESPACE
-#  define cfe_strlen(a)			__cfe_strlen(a)
-# endif
-int cfe_strlen(char *name);
-#endif
-
 /*
  * Defines and prototypes for functions which take no arguments.
  */
-#ifdef CFE_API_IMPL_NAMESPACE
-int64_t __cfe_getticks(void);
-#define cfe_getticks()			__cfe_getticks()
-#else
 int64_t cfe_getticks(void);
-#endif
 
 /*
  * Defines and prototypes for the rest of the functions.
  */
-#ifdef CFE_API_IMPL_NAMESPACE
-#define cfe_close(a)			__cfe_close(a)
-#define cfe_cpu_start(a, b, c, d, e)	__cfe_cpu_start(a, b, c, d, e)
-#define cfe_cpu_stop(a)			__cfe_cpu_stop(a)
-#define cfe_enumenv(a, b, d, e, f)	__cfe_enumenv(a, b, d, e, f)
-#define cfe_enummem(a, b, c, d, e)	__cfe_enummem(a, b, c, d, e)
-#define cfe_exit(a, b)			__cfe_exit(a, b)
-#define cfe_flushcache(a)		__cfe_cacheflush(a)
-#define cfe_getdevinfo(a)		__cfe_getdevinfo(a)
-#define cfe_getenv(a, b, c)		__cfe_getenv(a, b, c)
-#define cfe_getfwinfo(a)		__cfe_getfwinfo(a)
-#define cfe_getstdhandle(a)		__cfe_getstdhandle(a)
-#define cfe_init(a, b)			__cfe_init(a, b)
-#define cfe_inpstat(a)			__cfe_inpstat(a)
-#define cfe_ioctl(a, b, c, d, e, f)	__cfe_ioctl(a, b, c, d, e, f)
-#define cfe_open(a)			__cfe_open(a)
-#define cfe_read(a, b, c)		__cfe_read(a, b, c)
-#define cfe_readblk(a, b, c, d)		__cfe_readblk(a, b, c, d)
-#define cfe_setenv(a, b)		__cfe_setenv(a, b)
-#define cfe_write(a, b, c)		__cfe_write(a, b, c)
-#define cfe_writeblk(a, b, c, d)	__cfe_writeblk(a, b, c, d)
-#endif				/* CFE_API_IMPL_NAMESPACE */
-
 int cfe_close(int handle);
 int cfe_cpu_start(int cpu, void (*fn) (void), long sp, long gp, long a1);
 int cfe_cpu_stop(int cpu);
diff --git a/include/asm-mips/fw/cfe/cfe_error.h b/include/asm-mips/fw/cfe/cfe_error.h
index 975f00002cbe..b80374636279 100644
--- a/include/asm-mips/fw/cfe/cfe_error.h
+++ b/include/asm-mips/fw/cfe/cfe_error.h
@@ -16,18 +16,13 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
 
-/*  *********************************************************************
-    *
-    *  Broadcom Common Firmware Environment (CFE)
-    *
-    *  Error codes				File: cfe_error.h
-    *
-    *  CFE's global error code list is here.
-    *
-    *  Author:  Mitch Lichtenberg
-    *
-    ********************************************************************* */
-
+/*
+ * Broadcom Common Firmware Environment (CFE)
+ *
+ * CFE's global error code list is here.
+ *
+ * Author:  Mitch Lichtenberg
+ */
 
 #define CFE_OK			 0
 #define CFE_ERR                 -1	/* generic error */
-- 
cgit v1.2.3-59-g8ed1b


From 7f3f4900619743f4e3af21e9228748c3d692a2c2 Mon Sep 17 00:00:00 2001
From: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Date: Fri, 26 Oct 2007 22:42:31 +0900
Subject: [MIPS] remove unused mips_machtype

Removed unused mips_machtype.  These are only set but not used.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/au1000/db1x00/init.c               |  11 ---
 arch/mips/au1000/mtx-1/init.c                |   2 -
 arch/mips/au1000/pb1000/init.c               |   2 -
 arch/mips/au1000/pb1100/init.c               |   2 -
 arch/mips/au1000/pb1200/init.c               |   2 -
 arch/mips/au1000/pb1500/init.c               |   2 -
 arch/mips/au1000/pb1550/init.c               |   2 -
 arch/mips/au1000/xxs1500/init.c              |   2 -
 arch/mips/basler/excite/excite_prom.c        |   2 -
 arch/mips/gt64120/wrppmc/setup.c             |   2 -
 arch/mips/jmr3927/rbhma3100/init.c           |   4 --
 arch/mips/lemote/lm2e/prom.c                 |   2 -
 arch/mips/philips/pnx8550/jbs/init.c         |   3 -
 arch/mips/philips/pnx8550/stb810/prom_init.c |   2 -
 arch/mips/pmc-sierra/yosemite/prom.c         |   2 -
 arch/mips/tx4938/toshiba_rbtx4938/prom.c     |   1 -
 arch/mips/vr41xx/nec-cmbvr4133/setup.c       |   2 -
 include/asm-mips/bootinfo.h                  | 104 ---------------------------
 18 files changed, 149 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/au1000/db1x00/init.c b/arch/mips/au1000/db1x00/init.c
index 43298fd9459c..e822c123eab8 100644
--- a/arch/mips/au1000/db1x00/init.c
+++ b/arch/mips/au1000/db1x00/init.c
@@ -57,17 +57,6 @@ void __init prom_init(void)
 	prom_argv = (char **) fw_arg1;
 	prom_envp = (char **) fw_arg2;
 
-	/* Set the platform # */
-#if	defined(CONFIG_MIPS_DB1550)
-	mips_machtype = MACH_DB1550;
-#elif	defined(CONFIG_MIPS_DB1500)
-	mips_machtype = MACH_DB1500;
-#elif	defined(CONFIG_MIPS_DB1100)
-	mips_machtype = MACH_DB1100;
-#else
-	mips_machtype = MACH_DB1000;
-#endif
-
 	prom_init_cmdline();
 
 	memsize_str = prom_getenv("memsize");
diff --git a/arch/mips/au1000/mtx-1/init.c b/arch/mips/au1000/mtx-1/init.c
index cdeae3212a2d..e700fd312a24 100644
--- a/arch/mips/au1000/mtx-1/init.c
+++ b/arch/mips/au1000/mtx-1/init.c
@@ -54,8 +54,6 @@ void __init prom_init(void)
 	prom_argv = (char **) fw_arg1;
 	prom_envp = (char **) fw_arg2;
 
-	mips_machtype = MACH_MTX1;	/* set the platform # */
-
 	prom_init_cmdline();
 
 	memsize_str = prom_getenv("memsize");
diff --git a/arch/mips/au1000/pb1000/init.c b/arch/mips/au1000/pb1000/init.c
index ddccaf6997d0..2515b9fb24af 100644
--- a/arch/mips/au1000/pb1000/init.c
+++ b/arch/mips/au1000/pb1000/init.c
@@ -52,8 +52,6 @@ void __init prom_init(void)
 	prom_argv = (char **) fw_arg1;
 	prom_envp = (char **) fw_arg2;
 
-	mips_machtype = MACH_PB1000;
-
 	prom_init_cmdline();
 	memsize_str = prom_getenv("memsize");
 	if (!memsize_str) {
diff --git a/arch/mips/au1000/pb1100/init.c b/arch/mips/au1000/pb1100/init.c
index c93fd39b4aba..490c3801c275 100644
--- a/arch/mips/au1000/pb1100/init.c
+++ b/arch/mips/au1000/pb1100/init.c
@@ -53,8 +53,6 @@ void __init prom_init(void)
 	prom_argv = (char **) fw_arg1;
 	prom_envp = (char **) fw_arg3;
 
-	mips_machtype = MACH_PB1100;
-
 	prom_init_cmdline();
 
 	memsize_str = prom_getenv("memsize");
diff --git a/arch/mips/au1000/pb1200/init.c b/arch/mips/au1000/pb1200/init.c
index c251570749ee..069ed45f04f2 100644
--- a/arch/mips/au1000/pb1200/init.c
+++ b/arch/mips/au1000/pb1200/init.c
@@ -53,8 +53,6 @@ void __init prom_init(void)
 	prom_argv = (char **) fw_arg1;
 	prom_envp = (char **) fw_arg2;
 
-	mips_machtype = MACH_PB1200;
-
 	prom_init_cmdline();
 	memsize_str = prom_getenv("memsize");
 	if (!memsize_str) {
diff --git a/arch/mips/au1000/pb1500/init.c b/arch/mips/au1000/pb1500/init.c
index 507d4b204161..db558c967048 100644
--- a/arch/mips/au1000/pb1500/init.c
+++ b/arch/mips/au1000/pb1500/init.c
@@ -53,8 +53,6 @@ void __init prom_init(void)
 	prom_argv = (char **) fw_arg1;
 	prom_envp = (char **) fw_arg2;
 
-	mips_machtype = MACH_PB1500;
-
 	prom_init_cmdline();
 	memsize_str = prom_getenv("memsize");
 	if (!memsize_str) {
diff --git a/arch/mips/au1000/pb1550/init.c b/arch/mips/au1000/pb1550/init.c
index b03eee601e36..b716363ea564 100644
--- a/arch/mips/au1000/pb1550/init.c
+++ b/arch/mips/au1000/pb1550/init.c
@@ -53,8 +53,6 @@ void __init prom_init(void)
 	prom_argv = (char **) fw_arg1;
 	prom_envp = (char **) fw_arg2;
 
-	mips_machtype = MACH_PB1550;
-
 	prom_init_cmdline();
 	memsize_str = prom_getenv("memsize");
 	if (!memsize_str) {
diff --git a/arch/mips/au1000/xxs1500/init.c b/arch/mips/au1000/xxs1500/init.c
index 6532939f377a..7e6878c1b0a5 100644
--- a/arch/mips/au1000/xxs1500/init.c
+++ b/arch/mips/au1000/xxs1500/init.c
@@ -52,8 +52,6 @@ void __init prom_init(void)
 	prom_argv = (char **) fw_arg1;
 	prom_envp = (char **) fw_arg2;
 
-	mips_machtype = MACH_XXS1500;	/* set the platform # */
-
 	prom_init_cmdline();
 
 	memsize_str = prom_getenv("memsize");
diff --git a/arch/mips/basler/excite/excite_prom.c b/arch/mips/basler/excite/excite_prom.c
index 2d752c2f6e59..68d8bc597e34 100644
--- a/arch/mips/basler/excite/excite_prom.c
+++ b/arch/mips/basler/excite/excite_prom.c
@@ -135,8 +135,6 @@ void __init prom_init(void)
 #ifdef CONFIG_64BIT
 #	error 64 bit support not implemented
 #endif /* CONFIG_64BIT */
-
-	mips_machtype = MACH_TITAN_EXCITE;
 }
 
 /* This is called from free_initmem(), so we need to provide it */
diff --git a/arch/mips/gt64120/wrppmc/setup.c b/arch/mips/gt64120/wrppmc/setup.c
index 51f6b7862460..728ef6a80edd 100644
--- a/arch/mips/gt64120/wrppmc/setup.c
+++ b/arch/mips/gt64120/wrppmc/setup.c
@@ -121,8 +121,6 @@ const char *get_system_type(void)
  */
 void __init prom_init(void)
 {
-	mips_machtype = MACH_WRPPMC;
-
 	add_memory_region(WRPPMC_SDRAM_SCS0_BASE, WRPPMC_SDRAM_SCS0_SIZE, BOOT_MEM_RAM);
 	add_memory_region(WRPPMC_BOOTROM_BASE, WRPPMC_BOOTROM_SIZE, BOOT_MEM_ROM_DATA);
 
diff --git a/arch/mips/jmr3927/rbhma3100/init.c b/arch/mips/jmr3927/rbhma3100/init.c
index b643f75ec9a5..700b9cf8eb9d 100644
--- a/arch/mips/jmr3927/rbhma3100/init.c
+++ b/arch/mips/jmr3927/rbhma3100/init.c
@@ -52,10 +52,6 @@ void __init prom_init(void)
 		puts("Warning: TX3927 TLB off\n");
 #endif
 
-#ifdef CONFIG_TOSHIBA_JMR3927
-	mips_machtype = MACH_TOSHIBA_JMR3927;
-#endif
-
 	prom_init_cmdline();
 	add_memory_region(0, JMR3927_SDRAM_SIZE, BOOT_MEM_RAM);
 }
diff --git a/arch/mips/lemote/lm2e/prom.c b/arch/mips/lemote/lm2e/prom.c
index 824336812198..7edc15dfed6c 100644
--- a/arch/mips/lemote/lm2e/prom.c
+++ b/arch/mips/lemote/lm2e/prom.c
@@ -57,8 +57,6 @@ void __init prom_init(void)
 	arg = (int *)fw_arg1;
 	env = (int *)fw_arg2;
 
-	mips_machtype = MACH_LEMOTE_FULONG;
-
 	prom_init_cmdline();
 
 	if ((strstr(arcs_cmdline, "console=")) == NULL)
diff --git a/arch/mips/philips/pnx8550/jbs/init.c b/arch/mips/philips/pnx8550/jbs/init.c
index cfd90fa3d799..90b4d35f3ece 100644
--- a/arch/mips/philips/pnx8550/jbs/init.c
+++ b/arch/mips/philips/pnx8550/jbs/init.c
@@ -45,11 +45,8 @@ const char *get_system_type(void)
 
 void __init prom_init(void)
 {
-
 	unsigned long memsize;
 
-	mips_machtype = MACH_PHILIPS_JBS;
-
 	//memsize = 0x02800000; /* Trimedia uses memory above */
 	memsize = 0x08000000; /* Trimedia uses memory above */
 	add_memory_region(0, memsize, BOOT_MEM_RAM);
diff --git a/arch/mips/philips/pnx8550/stb810/prom_init.c b/arch/mips/philips/pnx8550/stb810/prom_init.c
index fdb33ed089b9..832dd60b0a7a 100644
--- a/arch/mips/philips/pnx8550/stb810/prom_init.c
+++ b/arch/mips/philips/pnx8550/stb810/prom_init.c
@@ -41,8 +41,6 @@ void __init prom_init(void)
 
 	prom_init_cmdline();
 
-	mips_machtype = MACH_PHILIPS_STB810;
-
 	memsize = 0x08000000; /* Trimedia uses memory above */
 	add_memory_region(0, memsize, BOOT_MEM_RAM);
 }
diff --git a/arch/mips/pmc-sierra/yosemite/prom.c b/arch/mips/pmc-sierra/yosemite/prom.c
index 9b9936de6589..96d3ff051d3d 100644
--- a/arch/mips/pmc-sierra/yosemite/prom.c
+++ b/arch/mips/pmc-sierra/yosemite/prom.c
@@ -126,8 +126,6 @@ void __init prom_init(void)
 		env++;
 	}
 
-	mips_machtype = MACH_TITAN_YOSEMITE;
-
 	prom_grab_secondary();
 }
 
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/prom.c b/arch/mips/tx4938/toshiba_rbtx4938/prom.c
index 69f21c1b7942..1644bffa501a 100644
--- a/arch/mips/tx4938/toshiba_rbtx4938/prom.c
+++ b/arch/mips/tx4938/toshiba_rbtx4938/prom.c
@@ -47,7 +47,6 @@ void __init prom_init(void)
 #ifndef CONFIG_TX4938_NAND_BOOT
 	prom_init_cmdline();
 #endif
-	mips_machtype = MACH_TOSHIBA_RBTX4938;
 
 	msize = tx4938_get_mem_size();
 	add_memory_region(0, msize << 20, BOOT_MEM_RAM);
diff --git a/arch/mips/vr41xx/nec-cmbvr4133/setup.c b/arch/mips/vr41xx/nec-cmbvr4133/setup.c
index f14bea8daf90..7723d2011b08 100644
--- a/arch/mips/vr41xx/nec-cmbvr4133/setup.c
+++ b/arch/mips/vr41xx/nec-cmbvr4133/setup.c
@@ -64,8 +64,6 @@ static void __init nec_cmbvr4133_setup(void)
 #endif
 	set_io_port_base(KSEG1ADDR(0x16000000));
 
-	mips_machtype = MACH_NEC_CMBVR4133;
-
 #ifdef CONFIG_PCI
 #ifdef CONFIG_ROCKHOPPER
 	ali_m5229_preinit();
diff --git a/include/asm-mips/bootinfo.h b/include/asm-mips/bootinfo.h
index b2dd9b33de8f..8e9bb16f0aa2 100644
--- a/include/asm-mips/bootinfo.h
+++ b/include/asm-mips/bootinfo.h
@@ -47,22 +47,11 @@
 #define  MACH_DS5800		9	/* DECsystem 5800		*/
 #define  MACH_DS5900		10	/* DECsystem 5900		*/
 
-/*
- * Valid machtype for group ARC
- */
-#define MACH_DESKSTATION_RPC44  0	/* Deskstation rPC44 */
-#define MACH_DESKSTATION_TYNE	1	/* Deskstation Tyne */
-
 /*
  * Valid machtype for group SNI_RM
  */
 #define  MACH_SNI_RM200_PCI	0	/* RM200/RM300/RM400 PCI series */
 
-/*
- * Valid machtype for group ACN
- */
-#define  MACH_ACN_MIPS_BOARD	0       /* ACN MIPS single board        */
-
 /*
  * Valid machtype for group SGI
  */
@@ -72,44 +61,6 @@
 #define  MACH_SGI_IP32		3	/* O2				*/
 #define  MACH_SGI_IP30		4	/* Octane, Octane2              */
 
-/*
- * Valid machtype for group COBALT
- */
-#define  MACH_COBALT_27		0	/* Proto "27" hardware		*/
-
-/*
- * Valid machtype for group BAGET
- */
-#define  MACH_BAGET201		0	/* BT23-201 */
-#define  MACH_BAGET202		1	/* BT23-202 */
-
-/*
- * Cosine boards.
- */
-#define  MACH_COSINE_ORION	0
-
-/*
- * Valid machtype for group MOMENCO
- */
-#define  MACH_MOMENCO_OCELOT	0
-#define  MACH_MOMENCO_OCELOT_G	1	/* no more supported (may 2007) */
-#define  MACH_MOMENCO_OCELOT_C	2	/* no more supported (jun 2007) */
-#define  MACH_MOMENCO_JAGUAR_ATX 3	/* no more supported (may 2007) */
-#define  MACH_MOMENCO_OCELOT_3	4
-
-/*
- * Valid machtype for group PHILIPS
- */
-#define  MACH_PHILIPS_NINO	0	/* Nino */
-#define  MACH_PHILIPS_VELO	1	/* Velo */
-#define  MACH_PHILIPS_JBS	2	/* JBS */
-#define  MACH_PHILIPS_STB810	3	/* STB810 */
-
-/*
- * Valid machtype for group SIBYTE
- */
-#define  MACH_SWARM              0
-
 /*
  * Valid machtypes for group Toshiba
  */
@@ -121,64 +72,17 @@
 #define  MACH_TOSHIBA_RBTX4937	5
 #define  MACH_TOSHIBA_RBTX4938	6
 
-/*
- * Valid machtype for group Alchemy
- */
-#define  MACH_PB1000		0	/* Au1000-based eval board */
-#define  MACH_PB1100		1	/* Au1100-based eval board */
-#define  MACH_PB1500		2	/* Au1500-based eval board */
-#define  MACH_DB1000		3       /* Au1000-based eval board */
-#define  MACH_DB1100		4       /* Au1100-based eval board */
-#define  MACH_DB1500		5       /* Au1500-based eval board */
-#define  MACH_XXS1500		6       /* Au1500-based eval board */
-#define  MACH_MTX1		7       /* 4G MTX-1 Au1500-based board */
-#define  MACH_PB1550		8       /* Au1550-based eval board */
-#define  MACH_DB1550		9       /* Au1550-based eval board */
-#define  MACH_PB1200		10       /* Au1200-based eval board */
-#define  MACH_DB1200		11       /* Au1200-based eval board */
-
-/*
- * Valid machtype for group NEC_VR41XX
- *
- * Various NEC-based devices.
- *
- * FIXME: MACH_GROUPs should be by _MANUFACTURER_ of * the device, not by
- *        technical properties, so no new additions to this group.
- */
-#define  MACH_NEC_OSPREY	0	/* Osprey eval board */
-#define  MACH_NEC_EAGLE		1	/* NEC Eagle/Hawk board */
-#define  MACH_ZAO_CAPCELLA	2	/* ZAO Networks Capcella */
-#define  MACH_VICTOR_MPC30X	3	/* Victor MP-C303/304 */
-#define  MACH_IBM_WORKPAD	4	/* IBM WorkPad z50 */
-#define  MACH_CASIO_E55		5	/* CASIO CASSIOPEIA E-10/15/55/65 */
-#define  MACH_TANBAC_TB0226	6	/* TANBAC TB0226 (Mbase) */
-#define  MACH_TANBAC_TB0229	7	/* TANBAC TB0229 (VR4131DIMM) */
-#define  MACH_NEC_CMBVR4133	8	/* CMB VR4133 Board */
-
-#define  MACH_HP_LASERJET	1
-
 /*
  * Valid machtype for group LASAT
  */
 #define  MACH_LASAT_100		0	/* Masquerade II/SP100/SP50/SP25 */
 #define  MACH_LASAT_200		1	/* Masquerade PRO/SP200 */
 
-/*
- * Valid machtype for group TITAN
- */
-#define  MACH_TITAN_YOSEMITE	1	/* PMC-Sierra Yosemite		*/
-#define  MACH_TITAN_EXCITE	2	/* Basler eXcite		*/
-
 /*
  * Valid machtype for group NEC EMMA2RH
  */
 #define  MACH_NEC_MARKEINS	0	/* NEC EMMA2RH Mark-eins	*/
 
-/*
- * Valid machtype for group LEMOTE
- */
-#define  MACH_LEMOTE_FULONG        0
-
 /*
  * Valid machtype for group PMC-MSP
  */
@@ -190,14 +94,6 @@
 #define MACH_MSP7120_FPGA       5	/* PMC-Sierra MSP7120 Emulation */
 #define MACH_MSP_OTHER        255	/* PMC-Sierra unknown board type */
 
-#define MACH_WRPPMC             1
-
-/*
- * Valid machtype for group Broadcom
- */
-#define MACH_GROUP_BRCM		23	/* Broadcom			*/
-#define  MACH_BCM47XX		1	/* Broadcom BCM47XX		*/
-
 #define CL_SIZE			COMMAND_LINE_SIZE
 
 const char *get_system_type(void);
-- 
cgit v1.2.3-59-g8ed1b


From 2206583dd5e370c3c3a30f7e67272e44abab9093 Mon Sep 17 00:00:00 2001
From: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Date: Thu, 1 Nov 2007 21:35:39 +0900
Subject: [MIPS] clean up au1xxx_irqmap.c include files

Clean up au1xxx_irqmap.c include files.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/au1000/common/au1xxx_irqmap.c | 21 ++-------------------
 1 file changed, 2 insertions(+), 19 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/au1000/common/au1xxx_irqmap.c b/arch/mips/au1000/common/au1xxx_irqmap.c
index 98a4e34b0248..37a10a01de9d 100644
--- a/arch/mips/au1000/common/au1xxx_irqmap.c
+++ b/arch/mips/au1000/common/au1xxx_irqmap.c
@@ -25,27 +25,10 @@
  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  */
-#include <linux/errno.h>
 #include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/kernel_stat.h>
-#include <linux/module.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/types.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/timex.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/delay.h>
-#include <linux/bitops.h>
+#include <linux/kernel.h>
 
-#include <asm/bootinfo.h>
-#include <asm/io.h>
-#include <asm/mipsregs.h>
-#include <asm/system.h>
-#include <asm/mach-au1x00/au1000.h>
+#include <au1000.h>
 
 /* The IC0 interrupt table.  This is processor, rather than
  * board dependent, so no reason to keep this info in the board
-- 
cgit v1.2.3-59-g8ed1b


From 48ef2626aeecac3b160d1aee38ac46d6c3540122 Mon Sep 17 00:00:00 2001
From: Andrew Sharp <andy.sharp@onstor.com>
Date: Wed, 31 Oct 2007 14:11:24 -0700
Subject: [MIPS] Put cast inside macro instead of all the callers

Since all the callers of the PHYS_TO_XKPHYS macro call with a constant,
put the cast to LL inside the macro where it really should be rather
than in all the callers.  This makes macros like PHYS_TO_XKSEG_UNCACHED
work without gcc whining.

Signed-off-by: Andrew Sharp <andy.sharp@onstor.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/lib/uncached.c     | 12 ++++++------
 include/asm-mips/addrspace.h |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/lib/uncached.c b/arch/mips/lib/uncached.c
index 58d14f4d9349..27b012d4341c 100644
--- a/arch/mips/lib/uncached.c
+++ b/arch/mips/lib/uncached.c
@@ -46,9 +46,9 @@ unsigned long __init run_uncached(void *func)
 	if (sp >= (long)CKSEG0 && sp < (long)CKSEG2)
 		usp = CKSEG1ADDR(sp);
 #ifdef CONFIG_64BIT
-	else if ((long long)sp >= (long long)PHYS_TO_XKPHYS(0LL, 0) &&
-		 (long long)sp < (long long)PHYS_TO_XKPHYS(8LL, 0))
-		usp = PHYS_TO_XKPHYS((long long)K_CALG_UNCACHED,
+	else if ((long long)sp >= (long long)PHYS_TO_XKPHYS(0, 0) &&
+		 (long long)sp < (long long)PHYS_TO_XKPHYS(8, 0))
+		usp = PHYS_TO_XKPHYS(K_CALG_UNCACHED,
 				     XKPHYS_TO_PHYS((long long)sp));
 #endif
 	else {
@@ -58,9 +58,9 @@ unsigned long __init run_uncached(void *func)
 	if (lfunc >= (long)CKSEG0 && lfunc < (long)CKSEG2)
 		ufunc = CKSEG1ADDR(lfunc);
 #ifdef CONFIG_64BIT
-	else if ((long long)lfunc >= (long long)PHYS_TO_XKPHYS(0LL, 0) &&
-		 (long long)lfunc < (long long)PHYS_TO_XKPHYS(8LL, 0))
-		ufunc = PHYS_TO_XKPHYS((long long)K_CALG_UNCACHED,
+	else if ((long long)lfunc >= (long long)PHYS_TO_XKPHYS(0, 0) &&
+		 (long long)lfunc < (long long)PHYS_TO_XKPHYS(8, 0))
+		ufunc = PHYS_TO_XKPHYS(K_CALG_UNCACHED,
 				       XKPHYS_TO_PHYS((long long)lfunc));
 #endif
 	else {
diff --git a/include/asm-mips/addrspace.h b/include/asm-mips/addrspace.h
index 0bb7a93b7a5e..569f80aacbd2 100644
--- a/include/asm-mips/addrspace.h
+++ b/include/asm-mips/addrspace.h
@@ -127,7 +127,7 @@
 #define PHYS_TO_XKSEG_CACHED(p)		PHYS_TO_XKPHYS(K_CALG_COH_SHAREABLE, (p))
 #define XKPHYS_TO_PHYS(p)		((p) & TO_PHYS_MASK)
 #define PHYS_TO_XKPHYS(cm, a)		(_CONST64_(0x8000000000000000) | \
-					 ((cm)<<59) | (a))
+					 (_CONST64_(cm) << 59) | (a))
 
 /*
  * The ultimate limited of the 64-bit MIPS architecture:  2 bits for selecting
-- 
cgit v1.2.3-59-g8ed1b


From 526af35e5db81758da8488d381610ed9d1fba8f7 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:14:55 +0000
Subject: [MIPS] Use pte_present instead of open coded test for _PAGE_PRESENT.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mm/c-r4k.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 9355f1c9325f..d526899b037c 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -449,7 +449,7 @@ static inline void local_r4k_flush_cache_page(void *args)
 	 * If the page isn't marked valid, the page cannot possibly be
 	 * in the cache.
 	 */
-	if (!(pte_val(*ptep) & _PAGE_PRESENT))
+	if (!(pte_present(*ptep)))
 		return;
 
 	if ((mm == current->active_mm) && (pte_val(*ptep) & _PAGE_VALID))
-- 
cgit v1.2.3-59-g8ed1b


From 33202349eff1f90a593924a61291e5466306ab8e Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:14:56 +0000
Subject: [MIPS] Remove useless S-cache flushes.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mm/c-r4k.c | 9 ---------
 1 file changed, 9 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index d526899b037c..c91b59680695 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -468,8 +468,6 @@ static inline void local_r4k_flush_cache_page(void *args)
 
 	if (cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc)) {
 		r4k_blast_dcache_page(addr);
-		if (exec && !cpu_icache_snoops_remote_store)
-			r4k_blast_scache_page(addr);
 	}
 	if (exec) {
 		if (vaddr && cpu_has_vtag_icache && mm == current->active_mm) {
@@ -533,13 +531,6 @@ static inline void local_r4k_flush_icache_range(void *args)
 			R4600_HIT_CACHEOP_WAR_IMPL;
 			protected_blast_dcache_range(start, end);
 		}
-
-		if (!cpu_icache_snoops_remote_store && scache_size) {
-			if (end - start > scache_size)
-				r4k_blast_scache();
-			else
-				protected_blast_scache_range(start, end);
-		}
 	}
 
 	if (end - start > icache_size)
-- 
cgit v1.2.3-59-g8ed1b


From fa09187c34e0d8c8337268a757cff942192131b1 Mon Sep 17 00:00:00 2001
From: Roel Kluin <12o3l@tiscali.nl>
Date: Fri, 2 Nov 2007 19:59:05 +0100
Subject: [MIPS] ARC: Use strchr instead of strstr.

Use strchr instead of strstr when searching for a single character

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/fw/arc/cmdline.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/mips/fw/arc/cmdline.c b/arch/mips/fw/arc/cmdline.c
index fd604ef28823..4ca4eef934a5 100644
--- a/arch/mips/fw/arc/cmdline.c
+++ b/arch/mips/fw/arc/cmdline.c
@@ -52,7 +52,7 @@ static char * __init move_firmware_args(char* cp)
 				strcat(cp, used_arc[i][1]);
 				cp += strlen(used_arc[i][1]);
 				/* ... and now the argument */
-				s = strstr(prom_argv(actr), "=");
+				s = strchr(prom_argv(actr), '=');
 				if (s) {
 					s++;
 					strcpy(cp, s);
-- 
cgit v1.2.3-59-g8ed1b


From adfb8998669a77c7942f220adf1c1fe8ced9deb6 Mon Sep 17 00:00:00 2001
From: Lucas Woods <woodzy@gmail.com>
Date: Tue, 6 Nov 2007 07:13:47 +1100
Subject: [MIPS] Remove duplicate includes.

Signed-off-by: Lucas Woods <woodzy@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/rtlx.c | 1 -
 arch/mips/kernel/vpe.c  | 1 -
 2 files changed, 2 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c
index 1ba00c15505b..0233798f7155 100644
--- a/arch/mips/kernel/rtlx.c
+++ b/arch/mips/kernel/rtlx.c
@@ -40,7 +40,6 @@
 #include <asm/atomic.h>
 #include <asm/cpu.h>
 #include <asm/processor.h>
-#include <asm/mips_mt.h>
 #include <asm/system.h>
 #include <asm/vpe.h>
 #include <asm/rtlx.h>
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index c06eb812a95e..eed2dc4273e0 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -53,7 +53,6 @@
 #include <asm/system.h>
 #include <asm/vpe.h>
 #include <asm/kspd.h>
-#include <asm/mips_mt.h>
 
 typedef void *vpe_handle;
 
-- 
cgit v1.2.3-59-g8ed1b


From 3f4ac2dc0504962b6cb9367adbc13272393b80b3 Mon Sep 17 00:00:00 2001
From: "Robert P. J. Day" <rpjday@crashcourse.ca>
Date: Tue, 6 Nov 2007 01:55:12 -0500
Subject: [MIPS]  Delete now-unreferenced i2c-yosemite.h header file.

Given that the corresponding source file i2c-yosemite.c file was
removed in commit daa4a68f901c4d6491baa1a01f5c869a553c3f6c, and that
no one else includes this file, it seems safe to delete it.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/pmc-sierra/yosemite/i2c-yosemite.h | 96 ----------------------------
 1 file changed, 96 deletions(-)
 delete mode 100644 arch/mips/pmc-sierra/yosemite/i2c-yosemite.h

(limited to 'arch')

diff --git a/arch/mips/pmc-sierra/yosemite/i2c-yosemite.h b/arch/mips/pmc-sierra/yosemite/i2c-yosemite.h
deleted file mode 100644
index 31c5523276fa..000000000000
--- a/arch/mips/pmc-sierra/yosemite/i2c-yosemite.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- *  arch/mips/pmc-sierra/yosemite/i2c-yosemite.h
- *
- *  Copyright (C) 2003 PMC-Sierra Inc.
- *  Author: Manish Lachwani (lachwani@pmc-sierra.com)
- *
- *  This program is free software; you can redistribute  it and/or modify it
- *  under  the terms of  the GNU General  Public License as published by the
- *  Free Software Foundation;  either version 2 of the  License, or (at your
- *  option) any later version.
- *
- *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
- *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
- *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the  GNU General Public License along
- *  with this program; if not, write  to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __I2C_YOSEMITE_H
-#define __I2C_YOSEMITE_H
-
-/* Read and Write operations to the chip */
-
-#define TITAN_I2C_BASE			0xbb000000	/* XXX Needs to change */
-
-#define	TITAN_I2C_WRITE(offset, data)	\
-					*(volatile unsigned long *)(TITAN_I2C_BASE + offset) = data
-
-#define	TITAN_I2C_READ(offset) *(volatile unsigned long *)(TITAN_I2C_BASE + offset)
-
-
-/* Local constansts*/
-#define TITAN_I2C_MAX_FILTER            15
-#define TITAN_I2C_MAX_CLK               1023
-#define TITAN_I2C_MAX_ARBF              15
-#define TITAN_I2C_MAX_NAK               15
-#define TITAN_I2C_MAX_MASTERCODE        7
-#define TITAN_I2C_MAX_WORDS_PER_RW      4
-#define TITAN_I2C_MAX_POLL		100
-
-/* Registers used for I2C work */
-#define TITAN_I2C_SCMB_CONTROL		0x0180	/* SCMB Control */
-#define TITAN_I2C_SCMB_CLOCK_A		0x0184	/* SCMB Clock A */
-#define TITAN_I2C_SCMB_CLOCK_B		0x0188	/* SCMB Clock B */
-#define	TITAN_I2C_CONFIG		0x01A0	/* I2C Config */
-#define TITAN_I2C_COMMAND		0x01A4	/* I2C Command */
-#define	TITAN_I2C_SLAVE_ADDRESS		0x01A8	/* I2C Slave Address */
-#define TITAN_I2C_DATA			0x01AC	/* I2C Data [15:0] */
-#define TITAN_I2C_INTERRUPTS		0x01BC	/* I2C Interrupts */
-
-/* Error */
-#define	TITAN_I2C_ERR_ARB_LOST		(-9220)
-#define	TITAN_I2C_ERR_NO_RESP		(-9221)
-#define	TITAN_I2C_ERR_DATA_COLLISION	(-9222)
-#define	TITAN_I2C_ERR_TIMEOUT		(-9223)
-#define	TITAN_I2C_ERR_OK		0
-
-/* I2C Command Type */
-typedef enum {
-	TITAN_I2C_CMD_WRITE = 0,
-	TITAN_I2C_CMD_READ = 1,
-	TITAN_I2C_CMD_READ_WRITE = 2
-} titan_i2c_cmd_type;
-
-/* I2C structures */
-typedef struct {
-	int filtera;		/* Register 0x0184, bits 15 - 12 */
-	int clka;		/* Register 0x0184, bits 9 - 0 */
-	int filterb;		/* Register 0x0188, bits 15 - 12 */
-	int clkb;		/* Register 0x0188, bits 9 - 0 */
-} titan_i2c_config;
-
-/* I2C command type */
-typedef struct {
-	titan_i2c_cmd_type type;	/* Type of command */
-	int num_arb;		/* Register 0x01a0, bits 15 - 12 */
-	int num_nak;		/* Register 0x01a0, bits 11 - 8 */
-	int addr_size;		/* Register 0x01a0, bit 7 */
-	int mst_code;		/* Register 0x01a0, bits 6 - 4 */
-	int arb_en;		/* Register 0x01a0, bit 1 */
-	int speed;		/* Register 0x01a0, bit 0 */
-	int slave_addr;		/* Register 0x01a8 */
-	int write_size;		/* Register 0x01a4, bits 10 - 8 */
-	unsigned int *data;	/* Register 0x01ac */
-} titan_i2c_command;
-
-#endif				/* __I2C_YOSEMITE_H */
-- 
cgit v1.2.3-59-g8ed1b


From a9af6041e9e7ed0278d03333c3a22a8509f33615 Mon Sep 17 00:00:00 2001
From: Franck Bui-Huu <fbuihuu@gmail.com>
Date: Thu, 18 Oct 2007 09:11:14 +0200
Subject: [MIPS] tlbex.c: Cleanup __init usages.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mm/tlbex.c | 98 ++++++++++++++++++++++++++--------------------------
 1 file changed, 49 insertions(+), 49 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index f8925ba0b39e..77530fd96f1c 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -67,7 +67,7 @@ static inline int __maybe_unused r10000_llsc_war(void)
  * why; it's not an issue caused by the core RTL.
  *
  */
-static __init int __attribute__((unused)) m4kc_tlbp_war(void)
+static int __init m4kc_tlbp_war(void)
 {
 	return (current_cpu_data.processor_id & 0xffff00) ==
 	       (PRID_COMP_MIPS | PRID_IMP_4KC);
@@ -141,7 +141,7 @@ struct insn {
 	 | (e) << RE_SH						\
 	 | (f) << FUNC_SH)
 
-static __initdata struct insn insn_table[] = {
+static struct insn insn_table[] __initdata = {
 	{ insn_addiu, M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
 	{ insn_addu, M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD },
 	{ insn_and, M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD },
@@ -194,7 +194,7 @@ static __initdata struct insn insn_table[] = {
 
 #undef M
 
-static __init u32 build_rs(u32 arg)
+static u32 __init build_rs(u32 arg)
 {
 	if (arg & ~RS_MASK)
 		printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -202,7 +202,7 @@ static __init u32 build_rs(u32 arg)
 	return (arg & RS_MASK) << RS_SH;
 }
 
-static __init u32 build_rt(u32 arg)
+static u32 __init build_rt(u32 arg)
 {
 	if (arg & ~RT_MASK)
 		printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -210,7 +210,7 @@ static __init u32 build_rt(u32 arg)
 	return (arg & RT_MASK) << RT_SH;
 }
 
-static __init u32 build_rd(u32 arg)
+static u32 __init build_rd(u32 arg)
 {
 	if (arg & ~RD_MASK)
 		printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -218,7 +218,7 @@ static __init u32 build_rd(u32 arg)
 	return (arg & RD_MASK) << RD_SH;
 }
 
-static __init u32 build_re(u32 arg)
+static u32 __init build_re(u32 arg)
 {
 	if (arg & ~RE_MASK)
 		printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -226,7 +226,7 @@ static __init u32 build_re(u32 arg)
 	return (arg & RE_MASK) << RE_SH;
 }
 
-static __init u32 build_simm(s32 arg)
+static u32 __init build_simm(s32 arg)
 {
 	if (arg > 0x7fff || arg < -0x8000)
 		printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -234,7 +234,7 @@ static __init u32 build_simm(s32 arg)
 	return arg & 0xffff;
 }
 
-static __init u32 build_uimm(u32 arg)
+static u32 __init build_uimm(u32 arg)
 {
 	if (arg & ~IMM_MASK)
 		printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -242,7 +242,7 @@ static __init u32 build_uimm(u32 arg)
 	return arg & IMM_MASK;
 }
 
-static __init u32 build_bimm(s32 arg)
+static u32 __init build_bimm(s32 arg)
 {
 	if (arg > 0x1ffff || arg < -0x20000)
 		printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -253,7 +253,7 @@ static __init u32 build_bimm(s32 arg)
 	return ((arg < 0) ? (1 << 15) : 0) | ((arg >> 2) & 0x7fff);
 }
 
-static __init u32 build_jimm(u32 arg)
+static u32 __init build_jimm(u32 arg)
 {
 	if (arg & ~((JIMM_MASK) << 2))
 		printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -261,7 +261,7 @@ static __init u32 build_jimm(u32 arg)
 	return (arg >> 2) & JIMM_MASK;
 }
 
-static __init u32 build_func(u32 arg)
+static u32 __init build_func(u32 arg)
 {
 	if (arg & ~FUNC_MASK)
 		printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -269,7 +269,7 @@ static __init u32 build_func(u32 arg)
 	return arg & FUNC_MASK;
 }
 
-static __init u32 build_set(u32 arg)
+static u32 __init build_set(u32 arg)
 {
 	if (arg & ~SET_MASK)
 		printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -316,69 +316,69 @@ static void __init build_insn(u32 **buf, enum opcode opc, ...)
 }
 
 #define I_u1u2u3(op)						\
-	static inline void __init i##op(u32 **buf, unsigned int a,	\
+	static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
 	 	unsigned int b, unsigned int c)			\
 	{							\
 		build_insn(buf, insn##op, a, b, c);		\
 	}
 
 #define I_u2u1u3(op)						\
-	static inline void __init i##op(u32 **buf, unsigned int a,	\
+	static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
 	 	unsigned int b, unsigned int c)			\
 	{							\
 		build_insn(buf, insn##op, b, a, c);		\
 	}
 
 #define I_u3u1u2(op)						\
-	static inline void __init i##op(u32 **buf, unsigned int a,	\
+	static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
 	 	unsigned int b, unsigned int c)			\
 	{							\
 		build_insn(buf, insn##op, b, c, a);		\
 	}
 
 #define I_u1u2s3(op)						\
-	static inline void __init i##op(u32 **buf, unsigned int a,	\
+	static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
 	 	unsigned int b, signed int c)			\
 	{							\
 		build_insn(buf, insn##op, a, b, c);		\
 	}
 
 #define I_u2s3u1(op)						\
-	static inline void __init i##op(u32 **buf, unsigned int a,	\
+	static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
 	 	signed int b, unsigned int c)			\
 	{							\
 		build_insn(buf, insn##op, c, a, b);		\
 	}
 
 #define I_u2u1s3(op)						\
-	static inline void __init i##op(u32 **buf, unsigned int a,	\
+	static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
 	 	unsigned int b, signed int c)			\
 	{							\
 		build_insn(buf, insn##op, b, a, c);		\
 	}
 
 #define I_u1u2(op)						\
-	static inline void __init i##op(u32 **buf, unsigned int a,	\
+	static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
 	 	unsigned int b)					\
 	{							\
 		build_insn(buf, insn##op, a, b);		\
 	}
 
 #define I_u1s2(op)						\
-	static inline void __init i##op(u32 **buf, unsigned int a,	\
+	static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
 	 	signed int b)					\
 	{							\
 		build_insn(buf, insn##op, a, b);		\
 	}
 
 #define I_u1(op)						\
-	static inline void __init i##op(u32 **buf, unsigned int a)	\
+	static void __init __maybe_unused i##op(u32 **buf, unsigned int a) \
 	{							\
 		build_insn(buf, insn##op, a);			\
 	}
 
 #define I_0(op)							\
-	static inline void __init i##op(u32 **buf)		\
+	static void __init __maybe_unused i##op(u32 **buf)	\
 	{							\
 		build_insn(buf, insn##op);			\
 	}
@@ -458,7 +458,7 @@ struct label {
 	enum label_id lab;
 };
 
-static __init void build_label(struct label **lab, u32 *addr,
+static void __init build_label(struct label **lab, u32 *addr,
 			       enum label_id l)
 {
 	(*lab)->addr = addr;
@@ -467,7 +467,7 @@ static __init void build_label(struct label **lab, u32 *addr,
 }
 
 #define L_LA(lb)						\
-	static inline void l##lb(struct label **lab, u32 *addr) \
+	static inline void __init l##lb(struct label **lab, u32 *addr) \
 	{							\
 		build_label(lab, addr, label##lb);		\
 	}
@@ -526,7 +526,7 @@ L_LA(_r3000_write_probe_fail)
 #define i_ssnop(buf) i_sll(buf, 0, 0, 1)
 #define i_ehb(buf) i_sll(buf, 0, 0, 3)
 
-static __init int __maybe_unused in_compat_space_p(long addr)
+static int __init __maybe_unused in_compat_space_p(long addr)
 {
 	/* Is this address in 32bit compat space? */
 #ifdef CONFIG_64BIT
@@ -536,7 +536,7 @@ static __init int __maybe_unused in_compat_space_p(long addr)
 #endif
 }
 
-static __init int __maybe_unused rel_highest(long val)
+static int __init __maybe_unused rel_highest(long val)
 {
 #ifdef CONFIG_64BIT
 	return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000;
@@ -545,7 +545,7 @@ static __init int __maybe_unused rel_highest(long val)
 #endif
 }
 
-static __init int __maybe_unused rel_higher(long val)
+static int __init __maybe_unused rel_higher(long val)
 {
 #ifdef CONFIG_64BIT
 	return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
@@ -554,17 +554,17 @@ static __init int __maybe_unused rel_higher(long val)
 #endif
 }
 
-static __init int rel_hi(long val)
+static int __init rel_hi(long val)
 {
 	return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000;
 }
 
-static __init int rel_lo(long val)
+static int __init rel_lo(long val)
 {
 	return ((val & 0xffff) ^ 0x8000) - 0x8000;
 }
 
-static __init void i_LA_mostly(u32 **buf, unsigned int rs, long addr)
+static void __init i_LA_mostly(u32 **buf, unsigned int rs, long addr)
 {
 	if (!in_compat_space_p(addr)) {
 		i_lui(buf, rs, rel_highest(addr));
@@ -580,7 +580,7 @@ static __init void i_LA_mostly(u32 **buf, unsigned int rs, long addr)
 		i_lui(buf, rs, rel_hi(addr));
 }
 
-static __init void __maybe_unused i_LA(u32 **buf, unsigned int rs, long addr)
+static void __init __maybe_unused i_LA(u32 **buf, unsigned int rs, long addr)
 {
 	i_LA_mostly(buf, rs, addr);
 	if (rel_lo(addr)) {
@@ -601,7 +601,7 @@ struct reloc {
 	enum label_id lab;
 };
 
-static __init void r_mips_pc16(struct reloc **rel, u32 *addr,
+static void __init r_mips_pc16(struct reloc **rel, u32 *addr,
 			       enum label_id l)
 {
 	(*rel)->addr = addr;
@@ -626,7 +626,7 @@ static inline void __resolve_relocs(struct reloc *rel, struct label *lab)
 	}
 }
 
-static __init void resolve_relocs(struct reloc *rel, struct label *lab)
+static void __init resolve_relocs(struct reloc *rel, struct label *lab)
 {
 	struct label *l;
 
@@ -636,7 +636,7 @@ static __init void resolve_relocs(struct reloc *rel, struct label *lab)
 				__resolve_relocs(rel, l);
 }
 
-static __init void move_relocs(struct reloc *rel, u32 *first, u32 *end,
+static void __init move_relocs(struct reloc *rel, u32 *first, u32 *end,
 			       long off)
 {
 	for (; rel->lab != label_invalid; rel++)
@@ -644,7 +644,7 @@ static __init void move_relocs(struct reloc *rel, u32 *first, u32 *end,
 			rel->addr += off;
 }
 
-static __init void move_labels(struct label *lab, u32 *first, u32 *end,
+static void __init move_labels(struct label *lab, u32 *first, u32 *end,
 			       long off)
 {
 	for (; lab->lab != label_invalid; lab++)
@@ -652,7 +652,7 @@ static __init void move_labels(struct label *lab, u32 *first, u32 *end,
 			lab->addr += off;
 }
 
-static __init void copy_handler(struct reloc *rel, struct label *lab,
+static void __init copy_handler(struct reloc *rel, struct label *lab,
 				u32 *first, u32 *end, u32 *target)
 {
 	long off = (long)(target - first);
@@ -663,7 +663,7 @@ static __init void copy_handler(struct reloc *rel, struct label *lab,
 	move_labels(lab, first, end, off);
 }
 
-static __init int __maybe_unused insn_has_bdelay(struct reloc *rel,
+static int __init __maybe_unused insn_has_bdelay(struct reloc *rel,
 						       u32 *addr)
 {
 	for (; rel->lab != label_invalid; rel++) {
@@ -755,11 +755,11 @@ il_bgez(u32 **p, struct reloc **r, unsigned int reg, enum label_id l)
  * We deliberately chose a buffer size of 128, so we won't scribble
  * over anything important on overflow before we panic.
  */
-static __initdata u32 tlb_handler[128];
+static u32 tlb_handler[128] __initdata;
 
 /* simply assume worst case size for labels and relocs */
-static __initdata struct label labels[128];
-static __initdata struct reloc relocs[128];
+static struct label labels[128] __initdata;
+static struct reloc relocs[128] __initdata;
 
 /*
  * The R3000 TLB handler is simple.
@@ -813,7 +813,7 @@ static void __init build_r3000_tlb_refill_handler(void)
  * other one.To keep things simple, we first assume linear space,
  * then we relocate it to the final handler layout as needed.
  */
-static __initdata u32 final_handler[64];
+static u32 final_handler[64] __initdata;
 
 /*
  * Hazards
@@ -837,7 +837,7 @@ static __initdata u32 final_handler[64];
  *
  * As if we MIPS hackers wouldn't know how to nop pipelines happy ...
  */
-static __init void __maybe_unused build_tlb_probe_entry(u32 **p)
+static void __init __maybe_unused build_tlb_probe_entry(u32 **p)
 {
 	switch (current_cpu_type()) {
 	/* Found by experiment: R4600 v2.0 needs this, too.  */
@@ -861,7 +861,7 @@ static __init void __maybe_unused build_tlb_probe_entry(u32 **p)
  */
 enum tlb_write_entry { tlb_random, tlb_indexed };
 
-static __init void build_tlb_write_entry(u32 **p, struct label **l,
+static void __init build_tlb_write_entry(u32 **p, struct label **l,
 					 struct reloc **r,
 					 enum tlb_write_entry wmode)
 {
@@ -1003,7 +1003,7 @@ static __init void build_tlb_write_entry(u32 **p, struct label **l,
  * TMP and PTR are scratch.
  * TMP will be clobbered, PTR will hold the pmd entry.
  */
-static __init void
+static void __init
 build_get_pmde64(u32 **p, struct label **l, struct reloc **r,
 		 unsigned int tmp, unsigned int ptr)
 {
@@ -1064,7 +1064,7 @@ build_get_pmde64(u32 **p, struct label **l, struct reloc **r,
  * BVADDR is the faulting address, PTR is scratch.
  * PTR will hold the pgd for vmalloc.
  */
-static __init void
+static void __init
 build_get_pgd_vmalloc64(u32 **p, struct label **l, struct reloc **r,
 			unsigned int bvaddr, unsigned int ptr)
 {
@@ -1134,7 +1134,7 @@ build_get_pgd_vmalloc64(u32 **p, struct label **l, struct reloc **r,
  * TMP and PTR are scratch.
  * TMP will be clobbered, PTR will hold the pgd entry.
  */
-static __init void __maybe_unused
+static void __init __maybe_unused
 build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr)
 {
 	long pgdc = (long)pgd_current;
@@ -1169,7 +1169,7 @@ build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr)
 
 #endif /* !CONFIG_64BIT */
 
-static __init void build_adjust_context(u32 **p, unsigned int ctx)
+static void __init build_adjust_context(u32 **p, unsigned int ctx)
 {
 	unsigned int shift = 4 - (PTE_T_LOG2 + 1) + PAGE_SHIFT - 12;
 	unsigned int mask = (PTRS_PER_PTE / 2 - 1) << (PTE_T_LOG2 + 1);
@@ -1195,7 +1195,7 @@ static __init void build_adjust_context(u32 **p, unsigned int ctx)
 	i_andi(p, ctx, ctx, mask);
 }
 
-static __init void build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr)
+static void __init build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr)
 {
 	/*
 	 * Bug workaround for the Nevada. It seems as if under certain
@@ -1220,7 +1220,7 @@ static __init void build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr)
 	i_ADDU(p, ptr, ptr, tmp); /* add in offset */
 }
 
-static __init void build_update_entries(u32 **p, unsigned int tmp,
+static void __init build_update_entries(u32 **p, unsigned int tmp,
 					unsigned int ptep)
 {
 	/*
-- 
cgit v1.2.3-59-g8ed1b


From f49b94d8c111e86e4e04a5a0eb83988d9d935d56 Mon Sep 17 00:00:00 2001
From: Franck Bui-Huu <fbuihuu@gmail.com>
Date: Thu, 18 Oct 2007 09:11:15 +0200
Subject: [MIPS] tlbex.c: cleanup include files

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mm/tlbex.c | 6 ------
 1 file changed, 6 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 77530fd96f1c..325bc730ab5e 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -19,21 +19,15 @@
  * (Condolences to Napoleon XIV)
  */
 
-#include <stdarg.h>
-
-#include <linux/mm.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/string.h>
 #include <linux/init.h>
 
 #include <asm/bugs.h>
-#include <asm/pgtable.h>
-#include <asm/cacheflush.h>
 #include <asm/mmu_context.h>
 #include <asm/inst.h>
 #include <asm/elf.h>
-#include <asm/smp.h>
 #include <asm/war.h>
 
 static inline int r45k_bvahwbug(void)
-- 
cgit v1.2.3-59-g8ed1b


From cbdbe07f9d60b80c903bddf6533db839789925c7 Mon Sep 17 00:00:00 2001
From: Franck Bui-Huu <fbuihuu@gmail.com>
Date: Thu, 18 Oct 2007 09:11:16 +0200
Subject: [MIPS] tlbex.c: use __cacheline_aligned instead of
 __tlb_handler_align

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mm/tlbex.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 325bc730ab5e..21bcf084882f 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -1391,18 +1391,15 @@ static void __init build_r4000_tlb_refill_handler(void)
 extern void tlb_do_page_fault_0(void);
 extern void tlb_do_page_fault_1(void);
 
-#define __tlb_handler_align \
-	__attribute__((__aligned__(1 << CONFIG_MIPS_L1_CACHE_SHIFT)))
-
 /*
  * 128 instructions for the fastpath handler is generous and should
  * never be exceeded.
  */
 #define FASTPATH_SIZE 128
 
-u32 __tlb_handler_align handle_tlbl[FASTPATH_SIZE];
-u32 __tlb_handler_align handle_tlbs[FASTPATH_SIZE];
-u32 __tlb_handler_align handle_tlbm[FASTPATH_SIZE];
+u32 handle_tlbl[FASTPATH_SIZE] __cacheline_aligned;
+u32 handle_tlbs[FASTPATH_SIZE] __cacheline_aligned;
+u32 handle_tlbm[FASTPATH_SIZE] __cacheline_aligned;
 
 static void __init
 iPTE_LW(u32 **p, struct label **l, unsigned int pte, unsigned int ptr)
-- 
cgit v1.2.3-59-g8ed1b


From 92b1e6a64a8d9d5ed3ec8797eed8b36e2164a410 Mon Sep 17 00:00:00 2001
From: Franck Bui-Huu <fbuihuu@gmail.com>
Date: Thu, 18 Oct 2007 09:11:17 +0200
Subject: [MIPS] tlbex.c: cleanup debug code

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mm/tlbex.c | 83 ++++++++++++++++------------------------------------
 1 file changed, 26 insertions(+), 57 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 21bcf084882f..c298344fcb71 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -720,6 +720,22 @@ il_bgez(u32 **p, struct reloc **r, unsigned int reg, enum label_id l)
 	i_bgez(p, reg, 0);
 }
 
+/*
+ * For debug purposes.
+ */
+static inline void dump_handler(const u32 *handler, int count)
+{
+	int i;
+
+	pr_debug("\t.set push\n");
+	pr_debug("\t.set noreorder\n");
+
+	for (i = 0; i < count; i++)
+		pr_debug("\t%p\t.word 0x%08x\n", &handler[i], handler[i]);
+
+	pr_debug("\t.set pop\n");
+}
+
 /* The only general purpose registers allowed in TLB handlers. */
 #define K0		26
 #define K1		27
@@ -762,7 +778,6 @@ static void __init build_r3000_tlb_refill_handler(void)
 {
 	long pgdc = (long)pgd_current;
 	u32 *p;
-	int i;
 
 	memset(tlb_handler, 0, sizeof(tlb_handler));
 	p = tlb_handler;
@@ -791,13 +806,9 @@ static void __init build_r3000_tlb_refill_handler(void)
 	pr_info("Synthesized TLB refill handler (%u instructions).\n",
 		(unsigned int)(p - tlb_handler));
 
-	pr_debug("\t.set push\n");
-	pr_debug("\t.set noreorder\n");
-	for (i = 0; i < (p - tlb_handler); i++)
-		pr_debug("\t.word 0x%08x\n", tlb_handler[i]);
-	pr_debug("\t.set pop\n");
-
 	memcpy((void *)ebase, tlb_handler, 0x80);
+
+	dump_handler((u32 *)ebase, 32);
 }
 
 /*
@@ -1264,7 +1275,6 @@ static void __init build_r4000_tlb_refill_handler(void)
 	struct reloc *r = relocs;
 	u32 *f;
 	unsigned int final_len;
-	int i;
 
 	memset(tlb_handler, 0, sizeof(tlb_handler));
 	memset(labels, 0, sizeof(labels));
@@ -1366,20 +1376,9 @@ static void __init build_r4000_tlb_refill_handler(void)
 	pr_info("Synthesized TLB refill handler (%u instructions).\n",
 		final_len);
 
-	f = final_handler;
-#if defined(CONFIG_64BIT) && !defined(CONFIG_CPU_LOONGSON2)
-	if (final_len > 32)
-		final_len = 64;
-	else
-		f = final_handler + 32;
-#endif /* CONFIG_64BIT */
-	pr_debug("\t.set push\n");
-	pr_debug("\t.set noreorder\n");
-	for (i = 0; i < final_len; i++)
-		pr_debug("\t.word 0x%08x\n", f[i]);
-	pr_debug("\t.set pop\n");
-
 	memcpy((void *)ebase, final_handler, 0x100);
+
+	dump_handler((u32 *)ebase, 64);
 }
 
 /*
@@ -1607,7 +1606,6 @@ static void __init build_r3000_tlb_load_handler(void)
 	u32 *p = handle_tlbl;
 	struct label *l = labels;
 	struct reloc *r = relocs;
-	int i;
 
 	memset(handle_tlbl, 0, sizeof(handle_tlbl));
 	memset(labels, 0, sizeof(labels));
@@ -1630,11 +1628,7 @@ static void __init build_r3000_tlb_load_handler(void)
 	pr_info("Synthesized TLB load handler fastpath (%u instructions).\n",
 		(unsigned int)(p - handle_tlbl));
 
-	pr_debug("\t.set push\n");
-	pr_debug("\t.set noreorder\n");
-	for (i = 0; i < (p - handle_tlbl); i++)
-		pr_debug("\t.word 0x%08x\n", handle_tlbl[i]);
-	pr_debug("\t.set pop\n");
+	dump_handler(handle_tlbl, ARRAY_SIZE(handle_tlbl));
 }
 
 static void __init build_r3000_tlb_store_handler(void)
@@ -1642,7 +1636,6 @@ static void __init build_r3000_tlb_store_handler(void)
 	u32 *p = handle_tlbs;
 	struct label *l = labels;
 	struct reloc *r = relocs;
-	int i;
 
 	memset(handle_tlbs, 0, sizeof(handle_tlbs));
 	memset(labels, 0, sizeof(labels));
@@ -1665,11 +1658,7 @@ static void __init build_r3000_tlb_store_handler(void)
 	pr_info("Synthesized TLB store handler fastpath (%u instructions).\n",
 		(unsigned int)(p - handle_tlbs));
 
-	pr_debug("\t.set push\n");
-	pr_debug("\t.set noreorder\n");
-	for (i = 0; i < (p - handle_tlbs); i++)
-		pr_debug("\t.word 0x%08x\n", handle_tlbs[i]);
-	pr_debug("\t.set pop\n");
+	dump_handler(handle_tlbs, ARRAY_SIZE(handle_tlbs));
 }
 
 static void __init build_r3000_tlb_modify_handler(void)
@@ -1677,7 +1666,6 @@ static void __init build_r3000_tlb_modify_handler(void)
 	u32 *p = handle_tlbm;
 	struct label *l = labels;
 	struct reloc *r = relocs;
-	int i;
 
 	memset(handle_tlbm, 0, sizeof(handle_tlbm));
 	memset(labels, 0, sizeof(labels));
@@ -1700,11 +1688,7 @@ static void __init build_r3000_tlb_modify_handler(void)
 	pr_info("Synthesized TLB modify handler fastpath (%u instructions).\n",
 		(unsigned int)(p - handle_tlbm));
 
-	pr_debug("\t.set push\n");
-	pr_debug("\t.set noreorder\n");
-	for (i = 0; i < (p - handle_tlbm); i++)
-		pr_debug("\t.word 0x%08x\n", handle_tlbm[i]);
-	pr_debug("\t.set pop\n");
+	dump_handler(handle_tlbm, ARRAY_SIZE(handle_tlbm));
 }
 
 /*
@@ -1757,7 +1741,6 @@ static void __init build_r4000_tlb_load_handler(void)
 	u32 *p = handle_tlbl;
 	struct label *l = labels;
 	struct reloc *r = relocs;
-	int i;
 
 	memset(handle_tlbl, 0, sizeof(handle_tlbl));
 	memset(labels, 0, sizeof(labels));
@@ -1790,11 +1773,7 @@ static void __init build_r4000_tlb_load_handler(void)
 	pr_info("Synthesized TLB load handler fastpath (%u instructions).\n",
 		(unsigned int)(p - handle_tlbl));
 
-	pr_debug("\t.set push\n");
-	pr_debug("\t.set noreorder\n");
-	for (i = 0; i < (p - handle_tlbl); i++)
-		pr_debug("\t.word 0x%08x\n", handle_tlbl[i]);
-	pr_debug("\t.set pop\n");
+	dump_handler(handle_tlbl, ARRAY_SIZE(handle_tlbl));
 }
 
 static void __init build_r4000_tlb_store_handler(void)
@@ -1802,7 +1781,6 @@ static void __init build_r4000_tlb_store_handler(void)
 	u32 *p = handle_tlbs;
 	struct label *l = labels;
 	struct reloc *r = relocs;
-	int i;
 
 	memset(handle_tlbs, 0, sizeof(handle_tlbs));
 	memset(labels, 0, sizeof(labels));
@@ -1826,11 +1804,7 @@ static void __init build_r4000_tlb_store_handler(void)
 	pr_info("Synthesized TLB store handler fastpath (%u instructions).\n",
 		(unsigned int)(p - handle_tlbs));
 
-	pr_debug("\t.set push\n");
-	pr_debug("\t.set noreorder\n");
-	for (i = 0; i < (p - handle_tlbs); i++)
-		pr_debug("\t.word 0x%08x\n", handle_tlbs[i]);
-	pr_debug("\t.set pop\n");
+	dump_handler(handle_tlbs, ARRAY_SIZE(handle_tlbs));
 }
 
 static void __init build_r4000_tlb_modify_handler(void)
@@ -1838,7 +1812,6 @@ static void __init build_r4000_tlb_modify_handler(void)
 	u32 *p = handle_tlbm;
 	struct label *l = labels;
 	struct reloc *r = relocs;
-	int i;
 
 	memset(handle_tlbm, 0, sizeof(handle_tlbm));
 	memset(labels, 0, sizeof(labels));
@@ -1863,11 +1836,7 @@ static void __init build_r4000_tlb_modify_handler(void)
 	pr_info("Synthesized TLB modify handler fastpath (%u instructions).\n",
 		(unsigned int)(p - handle_tlbm));
 
-	pr_debug("\t.set push\n");
-	pr_debug("\t.set noreorder\n");
-	for (i = 0; i < (p - handle_tlbm); i++)
-		pr_debug("\t.word 0x%08x\n", handle_tlbm[i]);
-	pr_debug("\t.set pop\n");
+	dump_handler(handle_tlbm, ARRAY_SIZE(handle_tlbm));
 }
 
 void __init build_tlb_refill_handler(void)
-- 
cgit v1.2.3-59-g8ed1b


From 0ab7aefc4d43a6dee26c891b41ef9c7a67d2379b Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 2 Mar 2007 20:42:04 +0000
Subject: [MIPS] MT: Scheduler support for SMT

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig           | 14 ++++++++++++++
 arch/mips/kernel/proc.c     |  1 +
 arch/mips/kernel/smp-mt.c   |  6 +++++-
 arch/mips/kernel/smp.c      | 30 ++++++++++++++++++++++++++++++
 include/asm-mips/cpu-info.h |  5 ++++-
 include/asm-mips/smp.h      |  3 +++
 include/asm-mips/topology.h | 16 ++++++++++++++++
 7 files changed, 73 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 11bc17ce0ebf..d5a89f3fdfd3 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1442,6 +1442,7 @@ config MIPS_MT_SMP
 	select MIPS_MT
 	select NR_CPUS_DEFAULT_2
 	select SMP
+	select SYS_SUPPORTS_SCHED_SMT if SMP
 	select SYS_SUPPORTS_SMP
 	help
 	  This is a kernel model which is also known a VSMP or lately
@@ -1468,6 +1469,19 @@ endchoice
 config MIPS_MT
 	bool
 
+config SCHED_SMT
+	bool "SMT (multithreading) scheduler support"
+	depends on SYS_SUPPORTS_SCHED_SMT
+	default n
+	help
+	  SMT scheduler support improves the CPU scheduler's decision making
+	  when dealing with MIPS MT enabled cores at a cost of slightly
+	  increased overhead in some places. If unsure say N here.
+
+config SYS_SUPPORTS_SCHED_SMT
+	bool
+
+
 config SYS_SUPPORTS_MULTITHREADING
 	bool
 
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 6e6e947cce1e..34dd22838fdb 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -62,6 +62,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		);
 	seq_printf(m, "shadow register sets\t: %d\n",
 		       cpu_data[n].srsets);
+	seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core);
 
 	sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
 	        cpu_has_vce ? "%u" : "not available");
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index 94e210cc6cb6..2ab0b7eeaa7e 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -22,6 +22,7 @@
 #include <linux/cpumask.h>
 #include <linux/interrupt.h>
 #include <linux/compiler.h>
+#include <linux/smp.h>
 
 #include <asm/atomic.h>
 #include <asm/cacheflush.h>
@@ -30,7 +31,6 @@
 #include <asm/system.h>
 #include <asm/hardirq.h>
 #include <asm/mmu_context.h>
-#include <asm/smp.h>
 #include <asm/time.h>
 #include <asm/mipsregs.h>
 #include <asm/mipsmtregs.h>
@@ -223,6 +223,7 @@ static void __init smp_tc_init(unsigned int tc, unsigned int mvpconf0)
 void __init plat_smp_setup(void)
 {
 	unsigned int mvpconf0, ntc, tc, ncpu = 0;
+	unsigned int nvpe;
 
 #ifdef CONFIG_MIPS_MT_FPAFF
 	/* If we have an FPU, enroll ourselves in the FPU-full mask */
@@ -242,6 +243,9 @@ void __init plat_smp_setup(void)
 	mvpconf0 = read_c0_mvpconf0();
 	ntc = (mvpconf0 & MVPCONF0_PTC) >> MVPCONF0_PTC_SHIFT;
 
+	nvpe = ((mvpconf0 & MVPCONF0_PVPE) >> MVPCONF0_PVPE_SHIFT) + 1;
+	smp_num_siblings = nvpe;
+
 	/* we'll always have more TC's than VPE's, so loop setting everything
 	   to a sensible state */
 	for (tc = 0; tc <= ntc; tc++) {
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 63989e9df4f9..335be9bcf0dc 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -56,6 +56,34 @@ EXPORT_SYMBOL(cpu_online_map);
 extern void __init calibrate_delay(void);
 extern void cpu_idle(void);
 
+/* Number of TCs (or siblings in Intel speak) per CPU core */
+int smp_num_siblings = 1;
+EXPORT_SYMBOL(smp_num_siblings);
+
+/* representing the TCs (or siblings in Intel speak) of each logical CPU */
+cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly;
+EXPORT_SYMBOL(cpu_sibling_map);
+
+/* representing cpus for which sibling maps can be computed */
+static cpumask_t cpu_sibling_setup_map;
+
+static inline void set_cpu_sibling_map(int cpu)
+{
+	int i;
+
+	cpu_set(cpu, cpu_sibling_setup_map);
+
+	if (smp_num_siblings > 1) {
+		for_each_cpu_mask(i, cpu_sibling_setup_map) {
+			if (cpu_data[cpu].core == cpu_data[i].core) {
+				cpu_set(i, cpu_sibling_map[cpu]);
+				cpu_set(cpu, cpu_sibling_map[i]);
+			}
+		}
+	} else
+		cpu_set(cpu, cpu_sibling_map[cpu]);
+}
+
 /*
  * First C code run on the secondary CPUs after being started up by
  * the master.
@@ -85,6 +113,7 @@ asmlinkage __cpuinit void start_secondary(void)
 	cpu_data[cpu].udelay_val = loops_per_jiffy;
 
 	prom_smp_finish();
+	set_cpu_sibling_map(cpu);
 
 	cpu_set(cpu, cpu_callin_map);
 
@@ -258,6 +287,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 	init_new_context(current, &init_mm);
 	current_thread_info()->cpu = 0;
 	plat_prepare_cpus(max_cpus);
+	set_cpu_sibling_map(0);
 #ifndef CONFIG_HOTPLUG_CPU
 	cpu_present_map = cpu_possible_map;
 #endif
diff --git a/include/asm-mips/cpu-info.h b/include/asm-mips/cpu-info.h
index ed5c02c6afbb..0c5a358863f3 100644
--- a/include/asm-mips/cpu-info.h
+++ b/include/asm-mips/cpu-info.h
@@ -55,6 +55,7 @@ struct cpuinfo_mips {
 	struct cache_desc	scache;	/* Secondary cache */
 	struct cache_desc	tcache;	/* Tertiary/split secondary cache */
 	int			srsets;	/* Shadow register sets */
+	int			core;	/* physical core number */
 #if defined(CONFIG_MIPS_MT_SMTC)
 	/*
 	 * In the MIPS MT "SMTC" model, each TC is considered
@@ -63,8 +64,10 @@ struct cpuinfo_mips {
 	 * to all TCs within the same VPE.
 	 */
 	int			vpe_id;  /* Virtual Processor number */
-	int			tc_id;   /* Thread Context number */
 #endif /* CONFIG_MIPS_MT */
+#ifdef CONFIG_MIPS_MT_SMTC
+	int			tc_id;   /* Thread Context number */
+#endif
 	void 			*data;	/* Additional data */
 } __attribute__((aligned(SMP_CACHE_BYTES)));
 
diff --git a/include/asm-mips/smp.h b/include/asm-mips/smp.h
index dc770025a9b0..23265879cee9 100644
--- a/include/asm-mips/smp.h
+++ b/include/asm-mips/smp.h
@@ -20,6 +20,9 @@
 #include <linux/cpumask.h>
 #include <asm/atomic.h>
 
+extern int smp_num_siblings;
+extern cpumask_t cpu_sibling_map[];
+
 #define raw_smp_processor_id() (current_thread_info()->cpu)
 
 /* Map from cpu id to sequential logical cpu number.  This will only
diff --git a/include/asm-mips/topology.h b/include/asm-mips/topology.h
index 0440fb9f2180..259145e07e97 100644
--- a/include/asm-mips/topology.h
+++ b/include/asm-mips/topology.h
@@ -1 +1,17 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2007 by Ralf Baechle
+ */
+#ifndef __ASM_TOPOLOGY_H
+#define __ASM_TOPOLOGY_H
+
 #include <topology.h>
+
+#ifdef CONFIG_SMP
+#define smt_capable()   (smp_num_siblings > 1)
+#endif
+
+#endif /* __ASM_TOPOLOGY_H */
-- 
cgit v1.2.3-59-g8ed1b


From 19388fb092d89e179575bd0b44f51b57e175edf5 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:14:57 +0000
Subject: [MIPS] Cleanup pcspeaker platform device registration.

Move registration into the actual platform code instead of making a
desparate attempt at sharing the hand full of likes of code in pcspeaker.c.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig            |  6 ------
 arch/mips/jazz/setup.c       |  7 +++++++
 arch/mips/kernel/pcspeaker.c | 28 ----------------------------
 arch/mips/qemu/q-setup.c     | 15 +++++++++++++++
 arch/mips/sni/pcit.c         |  7 +++++++
 5 files changed, 29 insertions(+), 34 deletions(-)
 delete mode 100644 arch/mips/kernel/pcspeaker.c

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index d5a89f3fdfd3..8cbdfd255670 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -132,7 +132,6 @@ config MACH_JAZZ
 	select I8253
 	select I8259
 	select ISA
-	select PCSPEAKER
 	select SYS_HAS_CPU_R4X00
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
@@ -378,7 +377,6 @@ config QEMU
 	select I8259
 	select IRQ_CPU
 	select ISA
-	select PCSPEAKER
 	select SWAP_IO_SPACE
 	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_HAS_EARLY_PRINTK
@@ -590,7 +588,6 @@ config SNI_RM
 	select I8253
 	select I8259
 	select ISA
-	select PCSPEAKER
 	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
 	select SYS_HAS_CPU_R4X00
 	select SYS_HAS_CPU_R5000
@@ -1995,9 +1992,6 @@ config MMU
 config I8253
 	bool
 
-config PCSPEAKER
-	bool
-
 config ZONE_DMA32
 	bool
 
diff --git a/arch/mips/jazz/setup.c b/arch/mips/jazz/setup.c
index a7857973ca03..a7947199c99b 100644
--- a/arch/mips/jazz/setup.c
+++ b/arch/mips/jazz/setup.c
@@ -200,12 +200,19 @@ static struct platform_device jazz_cmos_pdev = {
 	.resource       = jazz_cmos_rsrc
 };
 
+static struct platform_device pcspeaker_pdev = {
+	.name           = "pcspkr",
+	.id		= -1,
+};
+
 static int __init jazz_setup_devinit(void)
 {
 	platform_device_register(&jazz_serial8250_device);
 	platform_device_register(&jazz_esp_pdev);
 	platform_device_register(&jazz_sonic_pdev);
 	platform_device_register(&jazz_cmos_pdev);
+	platform_device_register(&pcspeaker_pdev);
+
 	return 0;
 }
 
diff --git a/arch/mips/kernel/pcspeaker.c b/arch/mips/kernel/pcspeaker.c
deleted file mode 100644
index 475df6904219..000000000000
--- a/arch/mips/kernel/pcspeaker.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2006 IBM Corporation
- *
- * Implements device information for i8253 timer chip
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation
- */
-
-#include <linux/platform_device.h>
-
-static __init int add_pcspkr(void)
-{
-	struct platform_device *pd;
-	int ret;
-
-	pd = platform_device_alloc("pcspkr", -1);
-	if (!pd)
-		return -ENOMEM;
-
-	ret = platform_device_add(pd);
-	if (ret)
-		platform_device_put(pd);
-
-	return ret;
-}
-device_initcall(add_pcspkr);
diff --git a/arch/mips/qemu/q-setup.c b/arch/mips/qemu/q-setup.c
index 969cedc8d8b9..9f0c2d3c67ea 100644
--- a/arch/mips/qemu/q-setup.c
+++ b/arch/mips/qemu/q-setup.c
@@ -1,4 +1,5 @@
 #include <linux/init.h>
+#include <linux/platform_device.h>
 
 #include <asm/i8253.h>
 #include <asm/io.h>
@@ -20,3 +21,17 @@ void __init plat_mem_setup(void)
 {
 	qemu_reboot_setup();
 }
+
+static struct platform_device pcspeaker_pdev = {
+	.name	= "pcspkr",
+	.id	= -1,
+};
+
+static int __init qemu_platform_devinit(void)
+{
+	platform_device_register(&pcspeaker_pdev);
+
+	return 0;
+}
+
+device_initcall(qemu_platform_devinit);
diff --git a/arch/mips/sni/pcit.c b/arch/mips/sni/pcit.c
index 416f397c768b..e5f12cf96e8e 100644
--- a/arch/mips/sni/pcit.c
+++ b/arch/mips/sni/pcit.c
@@ -76,6 +76,11 @@ static struct platform_device pcit_cmos_device = {
         .resource       = pcit_cmos_rsrc
 };
 
+static struct platform_device pcit_pcspeaker_pdev = {
+	.name		= "pcspkr",
+	.id		= -1,
+};
+
 static struct resource sni_io_resource = {
 	.start	= 0x00000000UL,
 	.end	= 0x03bfffffUL,
@@ -277,11 +282,13 @@ static int __init snirm_pcit_setup_devinit(void)
 	case SNI_BRD_PCI_TOWER:
 	        platform_device_register(&pcit_serial8250_device);
 	        platform_device_register(&pcit_cmos_device);
+		platform_device_register(&pcit_pcspeaker_pdev);
 	        break;
 
 	case SNI_BRD_PCI_TOWER_CPLUS:
 	        platform_device_register(&pcit_cplus_serial8250_device);
 	        platform_device_register(&pcit_cmos_device);
+		platform_device_register(&pcit_pcspeaker_pdev);
 	        break;
 	}
 	return 0;
-- 
cgit v1.2.3-59-g8ed1b


From 87353d8ac39c52784da605ecbe965ecdfad609ad Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Mon, 19 Nov 2007 12:23:51 +0000
Subject: [MIPS] SMP: Call platform methods via ops structure.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig                        |   5 +
 arch/mips/fw/arc/init.c                  |   8 ++
 arch/mips/kernel/mips-mt.c               |   1 -
 arch/mips/kernel/setup.c                 |   3 +-
 arch/mips/kernel/smp-mt.c                | 193 +++++++++++++++++--------------
 arch/mips/kernel/smp.c                   |  23 ++--
 arch/mips/kernel/smtc-proc.c             |   1 -
 arch/mips/kernel/smtc.c                  |   1 -
 arch/mips/mips-boards/generic/init.c     |   8 ++
 arch/mips/mips-boards/malta/malta_smtc.c |  66 ++++++-----
 arch/mips/mipssim/Makefile               |   2 +-
 arch/mips/mipssim/sim_setup.c            |  16 ++-
 arch/mips/mipssim/sim_smp.c              | 123 --------------------
 arch/mips/mipssim/sim_smtc.c             | 117 +++++++++++++++++++
 arch/mips/pmc-sierra/yosemite/prom.c     |   5 +
 arch/mips/pmc-sierra/yosemite/smp.c      | 149 +++++++++++++-----------
 arch/mips/qemu/q-smp.c                   |  40 ++++---
 arch/mips/sgi-ip27/ip27-init.c           |   1 -
 arch/mips/sgi-ip27/ip27-klnuma.c         |   1 -
 arch/mips/sgi-ip27/ip27-smp.c            | 109 ++++++++++-------
 arch/mips/sibyte/bcm1480/smp.c           | 101 ++++++++++++++--
 arch/mips/sibyte/cfe/Makefile            |   1 -
 arch/mips/sibyte/cfe/setup.c             |  11 ++
 arch/mips/sibyte/cfe/smp.c               | 110 ------------------
 arch/mips/sibyte/sb1250/smp.c            | 100 ++++++++++++++--
 include/asm-mips/sibyte/sb1250.h         |   2 -
 include/asm-mips/smp-ops.h               |  56 +++++++++
 include/asm-mips/smp.h                   |  61 +---------
 28 files changed, 755 insertions(+), 559 deletions(-)
 delete mode 100644 arch/mips/mipssim/sim_smp.c
 create mode 100644 arch/mips/mipssim/sim_smtc.c
 delete mode 100644 arch/mips/sibyte/cfe/smp.c
 create mode 100644 include/asm-mips/smp-ops.h

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 8cbdfd255670..b211e7961f28 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1441,6 +1441,7 @@ config MIPS_MT_SMP
 	select SMP
 	select SYS_SUPPORTS_SCHED_SMT if SMP
 	select SYS_SUPPORTS_SMP
+	select SMP_UP
 	help
 	  This is a kernel model which is also known a VSMP or lately
 	  has been marketesed into SMVP.
@@ -1457,6 +1458,7 @@ config MIPS_MT_SMTC
 	select NR_CPUS_DEFAULT_8
 	select SMP
 	select SYS_SUPPORTS_SMP
+	select SMP_UP
 	help
 	  This is a kernel model which is known a SMTC or lately has been
 	  marketesed into SMVP.
@@ -1735,6 +1737,9 @@ config SMP
 
 	  If you don't know what to do here, say N.
 
+config SMP_UP
+	bool
+
 config SYS_SUPPORTS_SMP
 	bool
 
diff --git a/arch/mips/fw/arc/init.c b/arch/mips/fw/arc/init.c
index e2f75b13312f..3ad8788b6eaa 100644
--- a/arch/mips/fw/arc/init.c
+++ b/arch/mips/fw/arc/init.c
@@ -12,6 +12,7 @@
 
 #include <asm/bootinfo.h>
 #include <asm/sgialib.h>
+#include <asm/smp-ops.h>
 
 #undef DEBUG_PROM_INIT
 
@@ -48,4 +49,11 @@ void __init prom_init(void)
 	ArcRead(0, &c, 1, &cnt);
 	ArcEnterInteractiveMode();
 #endif
+#ifdef CONFIG_SGI_IP27
+	{
+		extern struct plat_smp_ops ip27_smp_ops;
+
+		register_smp_ops(&ip27_smp_ops);
+	}
+#endif
 }
diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c
index 3d6b1ec1f328..640fb0cc6e39 100644
--- a/arch/mips/kernel/mips-mt.c
+++ b/arch/mips/kernel/mips-mt.c
@@ -17,7 +17,6 @@
 #include <asm/system.h>
 #include <asm/hardirq.h>
 #include <asm/mmu_context.h>
-#include <asm/smp.h>
 #include <asm/mipsmtregs.h>
 #include <asm/r4kcache.h>
 #include <asm/cacheflush.h>
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 7b4418dd5857..269c252d956f 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -29,6 +29,7 @@
 #include <asm/cpu.h>
 #include <asm/sections.h>
 #include <asm/setup.h>
+#include <asm/smp-ops.h>
 #include <asm/system.h>
 
 struct cpuinfo_mips cpu_data[NR_CPUS] __read_mostly;
@@ -575,9 +576,7 @@ void __init setup_arch(char **cmdline_p)
 	arch_mem_init(cmdline_p);
 
 	resource_init();
-#ifdef CONFIG_SMP
 	plat_smp_setup();
-#endif
 }
 
 static int __init fpu_disable(char *s)
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index 2ab0b7eeaa7e..89e6f6aa5166 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -215,72 +215,67 @@ static void __init smp_tc_init(unsigned int tc, unsigned int mvpconf0)
 	write_tc_c0_tchalt(TCHALT_H);
 }
 
-/*
- * Common setup before any secondaries are started
- * Make sure all CPU's are in a sensible state before we boot any of the
- * secondarys
- */
-void __init plat_smp_setup(void)
+static void vsmp_send_ipi_single(int cpu, unsigned int action)
 {
-	unsigned int mvpconf0, ntc, tc, ncpu = 0;
-	unsigned int nvpe;
+	int i;
+	unsigned long flags;
+	int vpflags;
 
-#ifdef CONFIG_MIPS_MT_FPAFF
-	/* If we have an FPU, enroll ourselves in the FPU-full mask */
-	if (cpu_has_fpu)
-		cpu_set(0, mt_fpu_cpumask);
-#endif /* CONFIG_MIPS_MT_FPAFF */
-	if (!cpu_has_mipsmt)
-		return;
+	local_irq_save(flags);
 
-	/* disable MT so we can configure */
-	dvpe();
-	dmt();
+	vpflags = dvpe();	/* cant access the other CPU's registers whilst MVPE enabled */
 
-	/* Put MVPE's into 'configuration state' */
-	set_c0_mvpcontrol(MVPCONTROL_VPC);
+	switch (action) {
+	case SMP_CALL_FUNCTION:
+		i = C_SW1;
+		break;
 
-	mvpconf0 = read_c0_mvpconf0();
-	ntc = (mvpconf0 & MVPCONF0_PTC) >> MVPCONF0_PTC_SHIFT;
+	case SMP_RESCHEDULE_YOURSELF:
+	default:
+		i = C_SW0;
+		break;
+	}
 
-	nvpe = ((mvpconf0 & MVPCONF0_PVPE) >> MVPCONF0_PVPE_SHIFT) + 1;
-	smp_num_siblings = nvpe;
+	/* 1:1 mapping of vpe and tc... */
+	settc(cpu);
+	write_vpe_c0_cause(read_vpe_c0_cause() | i);
+	evpe(vpflags);
 
-	/* we'll always have more TC's than VPE's, so loop setting everything
-	   to a sensible state */
-	for (tc = 0; tc <= ntc; tc++) {
-		settc(tc);
+	local_irq_restore(flags);
+}
 
-		smp_tc_init(tc, mvpconf0);
-		ncpu = smp_vpe_init(tc, mvpconf0, ncpu);
-	}
+static void vsmp_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+	unsigned int i;
 
-	/* Release config state */
-	clear_c0_mvpcontrol(MVPCONTROL_VPC);
+	for_each_cpu_mask(i, mask)
+		vsmp_send_ipi_single(i, action);
+}
 
-	/* We'll wait until starting the secondaries before starting MVPE */
+static void __cpuinit vsmp_init_secondary(void)
+{
+	/* Enable per-cpu interrupts */
 
-	printk(KERN_INFO "Detected %i available secondary CPU(s)\n", ncpu);
+	/* This is Malta specific: IPI,performance and timer inetrrupts */
+	write_c0_status((read_c0_status() & ~ST0_IM ) |
+	                (STATUSF_IP0 | STATUSF_IP1 | STATUSF_IP6 | STATUSF_IP7));
 }
 
-void __init plat_prepare_cpus(unsigned int max_cpus)
+static void __cpuinit vsmp_smp_finish(void)
 {
-	mips_mt_set_cpuoptions();
-
-	/* set up ipi interrupts */
-	if (cpu_has_vint) {
-		set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch);
-		set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
-	}
+	write_c0_compare(read_c0_count() + (8* mips_hpt_frequency/HZ));
 
-	cpu_ipi_resched_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ;
-	cpu_ipi_call_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ;
+#ifdef CONFIG_MIPS_MT_FPAFF
+	/* If we have an FPU, enroll ourselves in the FPU-full mask */
+	if (cpu_has_fpu)
+		cpu_set(smp_processor_id(), mt_fpu_cpumask);
+#endif /* CONFIG_MIPS_MT_FPAFF */
 
-	setup_irq(cpu_ipi_resched_irq, &irq_resched);
-	setup_irq(cpu_ipi_call_irq, &irq_call);
+	local_irq_enable();
+}
 
-	set_irq_handler(cpu_ipi_resched_irq, handle_percpu_irq);
-	set_irq_handler(cpu_ipi_call_irq, handle_percpu_irq);
+static void vsmp_cpus_done(void)
+{
 }
 
 /*
@@ -291,7 +286,7 @@ void __init plat_prepare_cpus(unsigned int max_cpus)
  * (unsigned long)idle->thread_info the gp
  * assumes a 1:1 mapping of TC => VPE
  */
-void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
+static void __cpuinit vsmp_boot_secondary(int cpu, struct task_struct *idle)
 {
 	struct thread_info *gp = task_thread_info(idle);
 	dvpe();
@@ -325,57 +320,81 @@ void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
 	evpe(EVPE_ENABLE);
 }
 
-void __cpuinit prom_init_secondary(void)
-{
-	/* Enable per-cpu interrupts */
-
-	/* This is Malta specific: IPI,performance and timer inetrrupts */
-	write_c0_status((read_c0_status() & ~ST0_IM ) |
-	                (STATUSF_IP0 | STATUSF_IP1 | STATUSF_IP6 | STATUSF_IP7));
-}
-
-void __cpuinit prom_smp_finish(void)
+/*
+ * Common setup before any secondaries are started
+ * Make sure all CPU's are in a sensible state before we boot any of the
+ * secondarys
+ */
+static void __init vsmp_smp_setup(void)
 {
-	write_c0_compare(read_c0_count() + (8* mips_hpt_frequency/HZ));
+	unsigned int mvpconf0, ntc, tc, ncpu = 0;
+	unsigned int nvpe;
 
 #ifdef CONFIG_MIPS_MT_FPAFF
 	/* If we have an FPU, enroll ourselves in the FPU-full mask */
 	if (cpu_has_fpu)
-		cpu_set(smp_processor_id(), mt_fpu_cpumask);
+		cpu_set(0, mt_fpu_cpumask);
 #endif /* CONFIG_MIPS_MT_FPAFF */
+	if (!cpu_has_mipsmt)
+		return;
 
-	local_irq_enable();
-}
+	/* disable MT so we can configure */
+	dvpe();
+	dmt();
 
-void prom_cpus_done(void)
-{
-}
+	/* Put MVPE's into 'configuration state' */
+	set_c0_mvpcontrol(MVPCONTROL_VPC);
 
-void core_send_ipi(int cpu, unsigned int action)
-{
-	int i;
-	unsigned long flags;
-	int vpflags;
+	mvpconf0 = read_c0_mvpconf0();
+	ntc = (mvpconf0 & MVPCONF0_PTC) >> MVPCONF0_PTC_SHIFT;
 
-	local_irq_save(flags);
+	nvpe = ((mvpconf0 & MVPCONF0_PVPE) >> MVPCONF0_PVPE_SHIFT) + 1;
+	smp_num_siblings = nvpe;
 
-	vpflags = dvpe();	/* cant access the other CPU's registers whilst MVPE enabled */
+	/* we'll always have more TC's than VPE's, so loop setting everything
+	   to a sensible state */
+	for (tc = 0; tc <= ntc; tc++) {
+		settc(tc);
 
-	switch (action) {
-	case SMP_CALL_FUNCTION:
-		i = C_SW1;
-		break;
+		smp_tc_init(tc, mvpconf0);
+		ncpu = smp_vpe_init(tc, mvpconf0, ncpu);
+	}
 
-	case SMP_RESCHEDULE_YOURSELF:
-	default:
-		i = C_SW0;
-		break;
+	/* Release config state */
+	clear_c0_mvpcontrol(MVPCONTROL_VPC);
+
+	/* We'll wait until starting the secondaries before starting MVPE */
+
+	printk(KERN_INFO "Detected %i available secondary CPU(s)\n", ncpu);
+}
+
+static void __init vsmp_prepare_cpus(unsigned int max_cpus)
+{
+	mips_mt_set_cpuoptions();
+
+	/* set up ipi interrupts */
+	if (cpu_has_vint) {
+		set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch);
+		set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
 	}
 
-	/* 1:1 mapping of vpe and tc... */
-	settc(cpu);
-	write_vpe_c0_cause(read_vpe_c0_cause() | i);
-	evpe(vpflags);
+	cpu_ipi_resched_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ;
+	cpu_ipi_call_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ;
 
-	local_irq_restore(flags);
+	setup_irq(cpu_ipi_resched_irq, &irq_resched);
+	setup_irq(cpu_ipi_call_irq, &irq_call);
+
+	set_irq_handler(cpu_ipi_resched_irq, handle_percpu_irq);
+	set_irq_handler(cpu_ipi_call_irq, handle_percpu_irq);
 }
+
+struct plat_smp_ops vsmp_smp_ops = {
+	.send_ipi_single	= vsmp_send_ipi_single,
+	.send_ipi_mask		= vsmp_send_ipi_mask,
+	.init_secondary		= vsmp_init_secondary,
+	.smp_finish		= vsmp_smp_finish,
+	.cpus_done		= vsmp_cpus_done,
+	.boot_secondary		= vsmp_boot_secondary,
+	.smp_setup		= vsmp_smp_setup,
+	.prepare_cpus		= vsmp_prepare_cpus,
+};
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 335be9bcf0dc..1e5dfc28294a 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -37,7 +37,6 @@
 #include <asm/processor.h>
 #include <asm/system.h>
 #include <asm/mmu_context.h>
-#include <asm/smp.h>
 #include <asm/time.h>
 
 #ifdef CONFIG_MIPS_MT_SMTC
@@ -84,6 +83,16 @@ static inline void set_cpu_sibling_map(int cpu)
 		cpu_set(cpu, cpu_sibling_map[cpu]);
 }
 
+struct plat_smp_ops *mp_ops;
+
+__cpuinit void register_smp_ops(struct plat_smp_ops *ops)
+{
+	if (ops)
+		printk(KERN_WARNING "Overriding previous set SMP ops\n");
+
+	mp_ops = ops;
+}
+
 /*
  * First C code run on the secondary CPUs after being started up by
  * the master.
@@ -100,7 +109,7 @@ asmlinkage __cpuinit void start_secondary(void)
 	cpu_report();
 	per_cpu_trap_init();
 	mips_clockevent_init();
-	prom_init_secondary();
+	mp_ops->init_secondary();
 
 	/*
 	 * XXX parity protection should be folded in here when it's converted
@@ -112,7 +121,7 @@ asmlinkage __cpuinit void start_secondary(void)
 	cpu = smp_processor_id();
 	cpu_data[cpu].udelay_val = loops_per_jiffy;
 
-	prom_smp_finish();
+	mp_ops->smp_finish();
 	set_cpu_sibling_map(cpu);
 
 	cpu_set(cpu, cpu_callin_map);
@@ -184,7 +193,7 @@ int smp_call_function_mask(cpumask_t mask, void (*func) (void *info),
 	smp_mb();
 
 	/* Send a message to all other CPUs and wait for them to respond */
-	core_send_ipi_mask(mask, SMP_CALL_FUNCTION);
+	mp_ops->send_ipi_mask(mask, SMP_CALL_FUNCTION);
 
 	/* Wait for response */
 	/* FIXME: lock-up detection, backtrace on lock-up */
@@ -278,7 +287,7 @@ void smp_send_stop(void)
 
 void __init smp_cpus_done(unsigned int max_cpus)
 {
-	prom_cpus_done();
+	mp_ops->cpus_done();
 }
 
 /* called from main before smp_init() */
@@ -286,7 +295,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 {
 	init_new_context(current, &init_mm);
 	current_thread_info()->cpu = 0;
-	plat_prepare_cpus(max_cpus);
+	mp_ops->prepare_cpus(max_cpus);
 	set_cpu_sibling_map(0);
 #ifndef CONFIG_HOTPLUG_CPU
 	cpu_present_map = cpu_possible_map;
@@ -325,7 +334,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
 	if (IS_ERR(idle))
 		panic(KERN_ERR "Fork failed for CPU %d", cpu);
 
-	prom_boot_secondary(cpu, idle);
+	mp_ops->boot_secondary(cpu, idle);
 
 	/*
 	 * Trust is futile.  We should really have timeouts ...
diff --git a/arch/mips/kernel/smtc-proc.c b/arch/mips/kernel/smtc-proc.c
index 6f3709996172..fe256559c997 100644
--- a/arch/mips/kernel/smtc-proc.c
+++ b/arch/mips/kernel/smtc-proc.c
@@ -14,7 +14,6 @@
 #include <asm/system.h>
 #include <asm/hardirq.h>
 #include <asm/mmu_context.h>
-#include <asm/smp.h>
 #include <asm/mipsregs.h>
 #include <asm/cacheflush.h>
 #include <linux/proc_fs.h>
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index 9c92d42996cb..85f700e58131 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -16,7 +16,6 @@
 #include <asm/hazards.h>
 #include <asm/irq.h>
 #include <asm/mmu_context.h>
-#include <asm/smp.h>
 #include <asm/mipsregs.h>
 #include <asm/cacheflush.h>
 #include <asm/time.h>
diff --git a/arch/mips/mips-boards/generic/init.c b/arch/mips/mips-boards/generic/init.c
index 30f1f54cb68b..1695dca5506b 100644
--- a/arch/mips/mips-boards/generic/init.c
+++ b/arch/mips/mips-boards/generic/init.c
@@ -250,6 +250,8 @@ void __init mips_ejtag_setup(void)
 	flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
 }
 
+extern struct plat_smp_ops msmtc_smp_ops;
+
 void __init prom_init(void)
 {
 	prom_argc = fw_arg0;
@@ -416,4 +418,10 @@ void __init prom_init(void)
 #ifdef CONFIG_SERIAL_8250_CONSOLE
 	console_config();
 #endif
+#ifdef CONFIG_MIPS_MT_SMP
+	register_smp_ops(&vsmp_smp_ops);
+#endif
+#ifdef CONFIG_MIPS_MT_SMTC
+	register_smp_ops(&msmtc_smp_ops);
+#endif
 }
diff --git a/arch/mips/mips-boards/malta/malta_smtc.c b/arch/mips/mips-boards/malta/malta_smtc.c
index 5c980f4a48fe..6f051ca243fa 100644
--- a/arch/mips/mips-boards/malta/malta_smtc.c
+++ b/arch/mips/mips-boards/malta/malta_smtc.c
@@ -15,26 +15,24 @@
  * Cause the specified action to be performed on a targeted "CPU"
  */
 
-void core_send_ipi(int cpu, unsigned int action)
+static void msmtc_send_ipi_single(int cpu, unsigned int action)
 {
 	/* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */
 	smtc_send_ipi(cpu, LINUX_SMP_IPI, action);
 }
 
-/*
- * Platform "CPU" startup hook
- */
-
-void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
+static void msmtc_send_ipi_mask(cpumask_t mask, unsigned int action)
 {
-	smtc_boot_secondary(cpu, idle);
+	unsigned int i;
+
+	for_each_cpu_mask(i, mask)
+		msmtc_send_ipi_single(i, action);
 }
 
 /*
  * Post-config but pre-boot cleanup entry point
  */
-
-void __cpuinit prom_init_secondary(void)
+static void __cpuinit msmtc_init_secondary(void)
 {
         void smtc_init_secondary(void);
 	int myvpe;
@@ -50,45 +48,61 @@ void __cpuinit prom_init_secondary(void)
 			set_c0_status(0x100 << cp0_perfcount_irq);
 	}
 
-        smtc_init_secondary();
+	smtc_init_secondary();
 }
 
 /*
- * Platform SMP pre-initialization
- *
- * As noted above, we can assume a single CPU for now
- * but it may be multithreaded.
+ * Platform "CPU" startup hook
  */
-
-void __cpuinit plat_smp_setup(void)
+static void __cpuinit msmtc_boot_secondary(int cpu, struct task_struct *idle)
 {
-	if (read_c0_config3() & (1<<2))
-		mipsmt_build_cpu_map(0);
+	smtc_boot_secondary(cpu, idle);
 }
 
-void __init plat_prepare_cpus(unsigned int max_cpus)
+/*
+ * SMP initialization finalization entry point
+ */
+static void __cpuinit msmtc_smp_finish(void)
 {
-	if (read_c0_config3() & (1<<2))
-		mipsmt_prepare_cpus();
+	smtc_smp_finish();
 }
 
 /*
- * SMP initialization finalization entry point
+ * Hook for after all CPUs are online
  */
 
-void __cpuinit prom_smp_finish(void)
+static void msmtc_cpus_done(void)
 {
-	smtc_smp_finish();
 }
 
 /*
- * Hook for after all CPUs are online
+ * Platform SMP pre-initialization
+ *
+ * As noted above, we can assume a single CPU for now
+ * but it may be multithreaded.
  */
 
-void prom_cpus_done(void)
+static void __init msmtc_smp_setup(void)
 {
+	mipsmt_build_cpu_map(0);
 }
 
+static void __init msmtc_prepare_cpus(unsigned int max_cpus)
+{
+	mipsmt_prepare_cpus();
+}
+
+struct plat_smp_ops msmtc_smp_ops = {
+	.send_ipi_single	= msmtc_send_ipi_single,
+	.send_ipi_mask		= msmtc_send_ipi_mask,
+	.init_secondary		= msmtc_init_secondary,
+	.smp_finish		= msmtc_smp_finish,
+	.cpus_done		= msmtc_cpus_done,
+	.boot_secondary		= msmtc_boot_secondary,
+	.smp_setup		= msmtc_smp_setup,
+	.prepare_cpus		= msmtc_prepare_cpus,
+};
+
 #ifdef CONFIG_MIPS_MT_SMTC_IRQAFF
 /*
  * IRQ affinity hook
diff --git a/arch/mips/mipssim/Makefile b/arch/mips/mipssim/Makefile
index 75568b584df4..57f43c1c7882 100644
--- a/arch/mips/mipssim/Makefile
+++ b/arch/mips/mipssim/Makefile
@@ -21,6 +21,6 @@ obj-y := sim_platform.o sim_setup.o sim_mem.o sim_time.o sim_int.o \
 	 sim_cmdline.o
 
 obj-$(CONFIG_EARLY_PRINTK) += sim_console.o
-obj-$(CONFIG_SMP) += sim_smp.o
+obj-$(CONFIG_MIPS_MT_SMTC) += sim_smtc.o
 
 EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/mipssim/sim_setup.c b/arch/mips/mipssim/sim_setup.c
index 452c129d02c1..d49fe73426b7 100644
--- a/arch/mips/mipssim/sim_setup.c
+++ b/arch/mips/mipssim/sim_setup.c
@@ -60,6 +60,8 @@ void __init plat_mem_setup(void)
 #endif
 }
 
+extern struct plat_smp_ops ssmtc_smp_ops;
+
 void __init prom_init(void)
 {
 	set_io_port_base(0xbfd00000);
@@ -67,8 +69,20 @@ void __init prom_init(void)
 	pr_info("\nLINUX started...\n");
 	prom_init_cmdline();
 	prom_meminit();
-}
 
+#ifdef CONFIG_MIPS_MT_SMP
+	if (cpu_has_mipsmt)
+		register_smp_ops(&vsmp_smp_ops);
+	else
+		register_smp_ops(&up_smp_ops);
+#endif
+#ifdef CONFIG_MIPS_MT_SMTC
+	if (cpu_has_mipsmt)
+		register_smp_ops(&ssmtc_smp_ops);
+	else
+		register_smp_ops(&up_smp_ops);
+#endif
+}
 
 static void __init serial_init(void)
 {
diff --git a/arch/mips/mipssim/sim_smp.c b/arch/mips/mipssim/sim_smp.c
deleted file mode 100644
index ccbbccac23ef..000000000000
--- a/arch/mips/mipssim/sim_smp.c
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * Copyright (C) 2005 MIPS Technologies, Inc.  All rights reserved.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- */
-/*
- * Simulator Platform-specific hooks for SMP operation
- */
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/cpumask.h>
-#include <linux/interrupt.h>
-#include <linux/smp.h>
-
-#include <asm/atomic.h>
-#include <asm/cpu.h>
-#include <asm/processor.h>
-#include <asm/system.h>
-#include <asm/mmu_context.h>
-#ifdef CONFIG_MIPS_MT_SMTC
-#include <asm/smtc_ipi.h>
-#endif /* CONFIG_MIPS_MT_SMTC */
-
-/* VPE/SMP Prototype implements platform interfaces directly */
-#if !defined(CONFIG_MIPS_MT_SMP)
-
-/*
- * Cause the specified action to be performed on a targeted "CPU"
- */
-
-void core_send_ipi(int cpu, unsigned int action)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
-	smtc_send_ipi(cpu, LINUX_SMP_IPI, action);
-#endif /* CONFIG_MIPS_MT_SMTC */
-/* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */
-
-}
-
-/*
- * Platform "CPU" startup hook
- */
-
-void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
-	smtc_boot_secondary(cpu, idle);
-#endif /* CONFIG_MIPS_MT_SMTC */
-}
-
-/*
- * Post-config but pre-boot cleanup entry point
- */
-
-void __cpuinit prom_init_secondary(void)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
-	void smtc_init_secondary(void);
-
-	smtc_init_secondary();
-#endif /* CONFIG_MIPS_MT_SMTC */
-}
-
-void plat_smp_setup(void)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
-	if (read_c0_config3() & (1 << 2))
-		mipsmt_build_cpu_map(0);
-#endif /* CONFIG_MIPS_MT_SMTC */
-}
-
-/*
- * Platform SMP pre-initialization
- */
-
-void plat_prepare_cpus(unsigned int max_cpus)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
-	/*
-	 * As noted above, we can assume a single CPU for now
-	 * but it may be multithreaded.
-	 */
-
-	if (read_c0_config3() & (1 << 2)) {
-		mipsmt_prepare_cpus();
-	}
-#endif /* CONFIG_MIPS_MT_SMTC */
-}
-
-/*
- * SMP initialization finalization entry point
- */
-
-void __cpuinit prom_smp_finish(void)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
-	smtc_smp_finish();
-#endif /* CONFIG_MIPS_MT_SMTC */
-}
-
-/*
- * Hook for after all CPUs are online
- */
-
-void prom_cpus_done(void)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
-
-#endif /* CONFIG_MIPS_MT_SMTC */
-}
-#endif /* CONFIG_MIPS32R2_MT_SMP */
diff --git a/arch/mips/mipssim/sim_smtc.c b/arch/mips/mipssim/sim_smtc.c
new file mode 100644
index 000000000000..d6e4f656ad14
--- /dev/null
+++ b/arch/mips/mipssim/sim_smtc.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2005 MIPS Technologies, Inc.  All rights reserved.
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ */
+/*
+ * Simulator Platform-specific hooks for SMTC operation
+ */
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/cpumask.h>
+#include <linux/interrupt.h>
+#include <linux/smp.h>
+
+#include <asm/atomic.h>
+#include <asm/cpu.h>
+#include <asm/processor.h>
+#include <asm/system.h>
+#include <asm/mmu_context.h>
+#include <asm/smtc_ipi.h>
+
+/* VPE/SMP Prototype implements platform interfaces directly */
+
+/*
+ * Cause the specified action to be performed on a targeted "CPU"
+ */
+
+static void ssmtc_send_ipi_single(int cpu, unsigned int action)
+{
+	smtc_send_ipi(cpu, LINUX_SMP_IPI, action);
+	/* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */
+}
+
+static inline void ssmtc_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+	unsigned int i;
+
+	for_each_cpu_mask(i, mask)
+		ssmtc_send_ipi_single(i, action);
+}
+
+/*
+ * Post-config but pre-boot cleanup entry point
+ */
+static void __cpuinit ssmtc_init_secondary(void)
+{
+	void smtc_init_secondary(void);
+
+	smtc_init_secondary();
+}
+
+/*
+ * SMP initialization finalization entry point
+ */
+static void __cpuinit ssmtc_smp_finish(void)
+{
+	smtc_smp_finish();
+}
+
+/*
+ * Hook for after all CPUs are online
+ */
+static void ssmtc_cpus_done(void)
+{
+}
+
+/*
+ * Platform "CPU" startup hook
+ */
+static void __cpuinit ssmtc_boot_secondary(int cpu, struct task_struct *idle)
+{
+	smtc_boot_secondary(cpu, idle);
+}
+
+static void __init ssmtc_smp_setup(void)
+{
+	if (read_c0_config3() & (1 << 2))
+		mipsmt_build_cpu_map(0);
+}
+
+/*
+ * Platform SMP pre-initialization
+ */
+static void ssmtc_prepare_cpus(unsigned int max_cpus)
+{
+	/*
+	 * As noted above, we can assume a single CPU for now
+	 * but it may be multithreaded.
+	 */
+
+	if (read_c0_config3() & (1 << 2)) {
+		mipsmt_prepare_cpus();
+	}
+}
+
+struct plat_smp_ops ssmtc_smp_ops = {
+	.send_ipi_single	= ssmtc_send_ipi_single,
+	.send_ipi_mask		= ssmtc_send_ipi_mask,
+	.init_secondary		= ssmtc_init_secondary,
+	.smp_finish		= ssmtc_smp_finish,
+	.cpus_done		= ssmtc_cpus_done,
+	.boot_secondary		= ssmtc_boot_secondary,
+	.smp_setup		= ssmtc_smp_setup,
+	.prepare_cpus		= ssmtc_prepare_cpus,
+};
diff --git a/arch/mips/pmc-sierra/yosemite/prom.c b/arch/mips/pmc-sierra/yosemite/prom.c
index 96d3ff051d3d..35dc435846a6 100644
--- a/arch/mips/pmc-sierra/yosemite/prom.c
+++ b/arch/mips/pmc-sierra/yosemite/prom.c
@@ -19,6 +19,7 @@
 #include <asm/pgtable.h>
 #include <asm/processor.h>
 #include <asm/reboot.h>
+#include <asm/smp-ops.h>
 #include <asm/system.h>
 #include <asm/bootinfo.h>
 #include <asm/pmon.h>
@@ -78,6 +79,8 @@ static void prom_halt(void)
 		__asm__(".set\tmips3\n\t" "wait\n\t" ".set\tmips0");
 }
 
+extern struct plat_smp_ops yos_smp_ops;
+
 /*
  * Init routine which accepts the variables from PMON
  */
@@ -127,6 +130,8 @@ void __init prom_init(void)
 	}
 
 	prom_grab_secondary();
+
+	register_smp_ops(&yos_smp_ops);
 }
 
 void __init prom_free_prom_memory(void)
diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c
index b0f12cd2968a..653f3ec61cab 100644
--- a/arch/mips/pmc-sierra/yosemite/smp.c
+++ b/arch/mips/pmc-sierra/yosemite/smp.c
@@ -42,70 +42,6 @@ void __init prom_grab_secondary(void)
 	              launchstack + LAUNCHSTACK_SIZE, 0);
 }
 
-/*
- * Detect available CPUs, populate phys_cpu_present_map before smp_init
- *
- * We don't want to start the secondary CPU yet nor do we have a nice probing
- * feature in PMON so we just assume presence of the secondary core.
- */
-void __init plat_smp_setup(void)
-{
-	int i;
-
-	cpus_clear(phys_cpu_present_map);
-
-	for (i = 0; i < 2; i++) {
-		cpu_set(i, phys_cpu_present_map);
-		__cpu_number_map[i]	= i;
-		__cpu_logical_map[i]	= i;
-	}
-}
-
-void __init plat_prepare_cpus(unsigned int max_cpus)
-{
-	/*
-	 * Be paranoid.  Enable the IPI only if we're really about to go SMP.
-	 */
-	if (cpus_weight(cpu_possible_map))
-		set_c0_status(STATUSF_IP5);
-}
-
-/*
- * Firmware CPU startup hook
- * Complicated by PMON's weird interface which tries to minimic the UNIX fork.
- * It launches the next * available CPU and copies some information on the
- * stack so the first thing we do is throw away that stuff and load useful
- * values into the registers ...
- */
-void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
-{
-	unsigned long gp = (unsigned long) task_thread_info(idle);
-	unsigned long sp = __KSTK_TOS(idle);
-
-	secondary_sp = sp;
-	secondary_gp = gp;
-
-	spin_unlock(&launch_lock);
-}
-
-/* Hook for after all CPUs are online */
-void prom_cpus_done(void)
-{
-}
-
-/*
- *  After we've done initial boot, this function is called to allow the
- *  board code to clean up state, if needed
- */
-void __cpuinit prom_init_secondary(void)
-{
-	set_c0_status(ST0_CO | ST0_IE | ST0_IM);
-}
-
-void __cpuinit prom_smp_finish(void)
-{
-}
-
 void titan_mailbox_irq(void)
 {
 	int cpu = smp_processor_id();
@@ -133,7 +69,7 @@ void titan_mailbox_irq(void)
 /*
  * Send inter-processor interrupt
  */
-void core_send_ipi(int cpu, unsigned int action)
+static void yos_send_ipi_single(int cpu, unsigned int action)
 {
 	/*
 	 * Generate an INTMSG so that it can be sent over to the
@@ -159,3 +95,86 @@ void core_send_ipi(int cpu, unsigned int action)
 		break;
 	}
 }
+
+static void yos_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+	unsigned int i;
+
+	for_each_cpu_mask(i, mask)
+		yos_send_ipi_single(i, action);
+}
+
+/*
+ *  After we've done initial boot, this function is called to allow the
+ *  board code to clean up state, if needed
+ */
+static void __cpuinit yos_init_secondary(void)
+{
+	set_c0_status(ST0_CO | ST0_IE | ST0_IM);
+}
+
+static void __cpuinit yos_smp_finish(void)
+{
+}
+
+/* Hook for after all CPUs are online */
+static void yos_cpus_done(void)
+{
+}
+
+/*
+ * Firmware CPU startup hook
+ * Complicated by PMON's weird interface which tries to minimic the UNIX fork.
+ * It launches the next * available CPU and copies some information on the
+ * stack so the first thing we do is throw away that stuff and load useful
+ * values into the registers ...
+ */
+static void __cpuinit yos_boot_secondary(int cpu, struct task_struct *idle)
+{
+	unsigned long gp = (unsigned long) task_thread_info(idle);
+	unsigned long sp = __KSTK_TOS(idle);
+
+	secondary_sp = sp;
+	secondary_gp = gp;
+
+	spin_unlock(&launch_lock);
+}
+
+/*
+ * Detect available CPUs, populate phys_cpu_present_map before smp_init
+ *
+ * We don't want to start the secondary CPU yet nor do we have a nice probing
+ * feature in PMON so we just assume presence of the secondary core.
+ */
+static void __init yos_smp_setup(void)
+{
+	int i;
+
+	cpus_clear(phys_cpu_present_map);
+
+	for (i = 0; i < 2; i++) {
+		cpu_set(i, phys_cpu_present_map);
+		__cpu_number_map[i]	= i;
+		__cpu_logical_map[i]	= i;
+	}
+}
+
+static void __init yos_prepare_cpus(unsigned int max_cpus)
+{
+	/*
+	 * Be paranoid.  Enable the IPI only if we're really about to go SMP.
+	 */
+	if (cpus_weight(cpu_possible_map))
+		set_c0_status(STATUSF_IP5);
+}
+
+struct plat_smp_ops yos_smp_ops = {
+	.send_ipi_single	= yos_send_ipi_single,
+	.send_ipi_mask		= yos_send_ipi_mask,
+	.init_secondary		= yos_init_secondary,
+	.smp_finish		= yos_smp_finish,
+	.cpus_done		= yos_cpus_done,
+	.boot_secondary		= yos_boot_secondary,
+	.smp_setup		= yos_smp_setup,
+	.prepare_cpus		= yos_prepare_cpus,
+};
diff --git a/arch/mips/qemu/q-smp.c b/arch/mips/qemu/q-smp.c
index 4b0178d0df0b..ead6c30eeb14 100644
--- a/arch/mips/qemu/q-smp.c
+++ b/arch/mips/qemu/q-smp.c
@@ -3,7 +3,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 2006 by Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2006, 07 by Ralf Baechle (ralf@linux-mips.org)
  *
  * Symmetric Uniprocessor (TM) Support
  */
@@ -13,43 +13,55 @@
 /*
  * Send inter-processor interrupt
  */
-void core_send_ipi(int cpu, unsigned int action)
+void up_send_ipi_single(int cpu, unsigned int action)
 {
-	panic(KERN_ERR "%s called", __FUNCTION__);
+	panic(KERN_ERR "%s called", __func__);
+}
+
+static inline void up_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+	panic(KERN_ERR "%s called", __func__);
 }
 
 /*
  *  After we've done initial boot, this function is called to allow the
  *  board code to clean up state, if needed
  */
-void __cpuinit prom_init_secondary(void)
+void __cpuinit up_init_secondary(void)
 {
 }
 
-void __cpuinit prom_smp_finish(void)
+void __cpuinit up_smp_finish(void)
 {
 }
 
 /* Hook for after all CPUs are online */
-void prom_cpus_done(void)
-{
-}
-
-void __init prom_prepare_cpus(unsigned int max_cpus)
+void up_cpus_done(void)
 {
-	cpus_clear(phys_cpu_present_map);
 }
 
 /*
  * Firmware CPU startup hook
  */
-void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
+void __cpuinit up_boot_secondary(int cpu, struct task_struct *idle)
 {
 }
 
-void __init plat_smp_setup(void)
+void __init up_smp_setup(void)
 {
 }
-void __init plat_prepare_cpus(unsigned int max_cpus)
+
+void __init up_prepare_cpus(unsigned int max_cpus)
 {
 }
+
+struct plat_smp_ops up_smp_ops = {
+	.send_ipi_single	= up_send_ipi_single,
+	.send_ipi_mask		= up_send_ipi_mask,
+	.init_secondary		= up_init_secondary,
+	.smp_finish		= up_smp_finish,
+	.cpus_done		= up_cpus_done,
+	.boot_secondary		= up_boot_secondary,
+	.smp_setup		= up_smp_setup,
+	.prepare_cpus		= up_prepare_cpus,
+};
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c
index 3305fa9ae66d..a49e7c85f724 100644
--- a/arch/mips/sgi-ip27/ip27-init.c
+++ b/arch/mips/sgi-ip27/ip27-init.c
@@ -27,7 +27,6 @@
 #include <asm/sn/hub.h>
 #include <asm/sn/intr.h>
 #include <asm/current.h>
-#include <asm/smp.h>
 #include <asm/processor.h>
 #include <asm/mmu_context.h>
 #include <asm/thread_info.h>
diff --git a/arch/mips/sgi-ip27/ip27-klnuma.c b/arch/mips/sgi-ip27/ip27-klnuma.c
index f10d9839006d..48932ce1d730 100644
--- a/arch/mips/sgi-ip27/ip27-klnuma.c
+++ b/arch/mips/sgi-ip27/ip27-klnuma.c
@@ -11,7 +11,6 @@
 
 #include <asm/page.h>
 #include <asm/sections.h>
-#include <asm/smp.h>
 #include <asm/sn/types.h>
 #include <asm/sn/arch.h>
 #include <asm/sn/gda.h>
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index a70656d42191..f15fc93d6b35 100644
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -140,30 +140,51 @@ static __init void intr_clear_all(nasid_t nasid)
 		REMOTE_HUB_CLR_INTR(nasid, i);
 }
 
-void __init plat_smp_setup(void)
+static void ip27_send_ipi_single(int destid, unsigned int action)
 {
-	cnodeid_t	cnode;
+	int irq;
 
-	for_each_online_node(cnode) {
-		if (cnode == 0)
-			continue;
-		intr_clear_all(COMPACT_TO_NASID_NODEID(cnode));
+	switch (action) {
+	case SMP_RESCHEDULE_YOURSELF:
+		irq = CPU_RESCHED_A_IRQ;
+		break;
+	case SMP_CALL_FUNCTION:
+		irq = CPU_CALL_A_IRQ;
+		break;
+	default:
+		panic("sendintr");
 	}
 
-	replicate_kernel_text();
+	irq += cputoslice(destid);
 
 	/*
-	 * Assumption to be fixed: we're always booted on logical / physical
-	 * processor 0.  While we're always running on logical processor 0
-	 * this still means this is physical processor zero; it might for
-	 * example be disabled in the firwware.
+	 * Convert the compact hub number to the NASID to get the correct
+	 * part of the address space.  Then set the interrupt bit associated
+	 * with the CPU we want to send the interrupt to.
 	 */
-	alloc_cpupda(0, 0);
+	REMOTE_HUB_SEND_INTR(COMPACT_TO_NASID_NODEID(cpu_to_node(destid)), irq);
 }
 
-void __init plat_prepare_cpus(unsigned int max_cpus)
+static void ip27_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+	unsigned int i;
+
+	for_each_cpu_mask(i, mask)
+		ip27_send_ipi_single(i, action);
+}
+
+static void __cpuinit ip27_init_secondary(void)
+{
+	per_cpu_init();
+	local_irq_enable();
+}
+
+static void __cpuinit ip27_smp_finish(void)
+{
+}
+
+static void __init ip27_cpus_done(void)
 {
-	/* We already did everything necessary earlier */
 }
 
 /*
@@ -171,7 +192,7 @@ void __init plat_prepare_cpus(unsigned int max_cpus)
  * set sp to the kernel stack of the newly created idle process, gp to the proc
  * struct so that current_thread_info() will work.
  */
-void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
+static void __cpuinit ip27_boot_secondary(int cpu, struct task_struct *idle)
 {
 	unsigned long gp = (unsigned long)task_thread_info(idle);
 	unsigned long sp = __KSTK_TOS(idle);
@@ -181,41 +202,39 @@ void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
 		0, (void *) sp, (void *) gp);
 }
 
-void __cpuinit prom_init_secondary(void)
+static void __init ip27_smp_setup(void)
 {
-	per_cpu_init();
-	local_irq_enable();
-}
-
-void __init prom_cpus_done(void)
-{
-}
-
-void __cpuinit prom_smp_finish(void)
-{
-}
-
-void core_send_ipi(int destid, unsigned int action)
-{
-	int irq;
+	cnodeid_t	cnode;
 
-	switch (action) {
-	case SMP_RESCHEDULE_YOURSELF:
-		irq = CPU_RESCHED_A_IRQ;
-		break;
-	case SMP_CALL_FUNCTION:
-		irq = CPU_CALL_A_IRQ;
-		break;
-	default:
-		panic("sendintr");
+	for_each_online_node(cnode) {
+		if (cnode == 0)
+			continue;
+		intr_clear_all(COMPACT_TO_NASID_NODEID(cnode));
 	}
 
-	irq += cputoslice(destid);
+	replicate_kernel_text();
 
 	/*
-	 * Convert the compact hub number to the NASID to get the correct
-	 * part of the address space.  Then set the interrupt bit associated
-	 * with the CPU we want to send the interrupt to.
+	 * Assumption to be fixed: we're always booted on logical / physical
+	 * processor 0.  While we're always running on logical processor 0
+	 * this still means this is physical processor zero; it might for
+	 * example be disabled in the firwware.
 	 */
-	REMOTE_HUB_SEND_INTR(COMPACT_TO_NASID_NODEID(cpu_to_node(destid)), irq);
+	alloc_cpupda(0, 0);
 }
+
+static void __init ip27_prepare_cpus(unsigned int max_cpus)
+{
+	/* We already did everything necessary earlier */
+}
+
+struct plat_smp_ops ip27_smp_ops = {
+	.send_ipi_single	= ip27_send_ipi_single,
+	.send_ipi_mask		= ip27_send_ipi_mask,
+	.init_secondary		= ip27_init_secondary,
+	.smp_finish		= ip27_smp_finish,
+	.cpus_done		= ip27_cpus_done,
+	.boot_secondary		= ip27_boot_secondary,
+	.smp_setup		= ip27_smp_setup,
+	.prepare_cpus		= ip27_prepare_cpus,
+};
diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c
index 436ba78359ab..183c460b9ca1 100644
--- a/arch/mips/sibyte/bcm1480/smp.c
+++ b/arch/mips/sibyte/bcm1480/smp.c
@@ -23,6 +23,7 @@
 
 #include <asm/mmu_context.h>
 #include <asm/io.h>
+#include <asm/fw/cfe/cfe_api.h>
 #include <asm/sibyte/sb1250.h>
 #include <asm/sibyte/bcm1480_regs.h>
 #include <asm/sibyte/bcm1480_int.h>
@@ -67,28 +68,114 @@ void __cpuinit bcm1480_smp_init(void)
 	change_c0_status(ST0_IM, imask);
 }
 
-void __cpuinit bcm1480_smp_finish(void)
+/*
+ * These are routines for dealing with the sb1250 smp capabilities
+ * independent of board/firmware
+ */
+
+/*
+ * Simple enough; everything is set up, so just poke the appropriate mailbox
+ * register, and we should be set
+ */
+static void bcm1480_send_ipi_single(int cpu, unsigned int action)
+{
+	__raw_writeq((((u64)action)<< 48), mailbox_0_set_regs[cpu]);
+}
+
+static void bcm1480_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+	unsigned int i;
+
+	for_each_cpu_mask(i, mask)
+		bcm1480_send_ipi_single(i, action);
+}
+
+/*
+ * Code to run on secondary just after probing the CPU
+ */
+static void __cpuinit bcm1480_init_secondary(void)
+{
+	extern void bcm1480_smp_init(void);
+
+	bcm1480_smp_init();
+}
+
+/*
+ * Do any tidying up before marking online and running the idle
+ * loop
+ */
+static void __cpuinit bcm1480_smp_finish(void)
 {
 	extern void sb1480_clockevent_init(void);
 
 	sb1480_clockevent_init();
 	local_irq_enable();
+	bcm1480_smp_finish();
 }
 
 /*
- * These are routines for dealing with the sb1250 smp capabilities
- * independent of board/firmware
+ * Final cleanup after all secondaries booted
  */
+static void bcm1480_cpus_done(void)
+{
+}
 
 /*
- * Simple enough; everything is set up, so just poke the appropriate mailbox
- * register, and we should be set
+ * Setup the PC, SP, and GP of a secondary processor and start it
+ * running!
  */
-void core_send_ipi(int cpu, unsigned int action)
+static void __cpuinit bcm1480_boot_secondary(int cpu, struct task_struct *idle)
 {
-	__raw_writeq((((u64)action)<< 48), mailbox_0_set_regs[cpu]);
+	int retval;
+
+	retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap,
+			       __KSTK_TOS(idle),
+			       (unsigned long)task_thread_info(idle), 0);
+	if (retval != 0)
+		printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval);
 }
 
+/*
+ * Use CFE to find out how many CPUs are available, setting up
+ * phys_cpu_present_map and the logical/physical mappings.
+ * XXXKW will the boot CPU ever not be physical 0?
+ *
+ * Common setup before any secondaries are started
+ */
+static void __init bcm1480_smp_setup(void)
+{
+	int i, num;
+
+	cpus_clear(phys_cpu_present_map);
+	cpu_set(0, phys_cpu_present_map);
+	__cpu_number_map[0] = 0;
+	__cpu_logical_map[0] = 0;
+
+	for (i = 1, num = 0; i < NR_CPUS; i++) {
+		if (cfe_cpu_stop(i) == 0) {
+			cpu_set(i, phys_cpu_present_map);
+			__cpu_number_map[i] = ++num;
+			__cpu_logical_map[num] = i;
+		}
+	}
+	printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num);
+}
+
+static void __init bcm1480_prepare_cpus(unsigned int max_cpus)
+{
+}
+
+struct plat_smp_ops bcm1480_smp_ops = {
+	.send_ipi_single	= bcm1480_send_ipi_single,
+	.send_ipi_mask		= bcm1480_send_ipi_mask,
+	.init_secondary		= bcm1480_init_secondary,
+	.smp_finish		= bcm1480_smp_finish,
+	.cpus_done		= bcm1480_cpus_done,
+	.boot_secondary		= bcm1480_boot_secondary,
+	.smp_setup		= bcm1480_smp_setup,
+	.prepare_cpus		= bcm1480_prepare_cpus,
+};
+
 void bcm1480_mailbox_interrupt(void)
 {
 	int cpu = smp_processor_id();
diff --git a/arch/mips/sibyte/cfe/Makefile b/arch/mips/sibyte/cfe/Makefile
index a1214937b705..02b32e142adf 100644
--- a/arch/mips/sibyte/cfe/Makefile
+++ b/arch/mips/sibyte/cfe/Makefile
@@ -1,3 +1,2 @@
 lib-y					= setup.o
-lib-$(CONFIG_SMP)			+= smp.o
 lib-$(CONFIG_SIBYTE_CFE_CONSOLE)	+= console.o
diff --git a/arch/mips/sibyte/cfe/setup.c b/arch/mips/sibyte/cfe/setup.c
index dbd6e6fdd3f9..50d7c05e15b8 100644
--- a/arch/mips/sibyte/cfe/setup.c
+++ b/arch/mips/sibyte/cfe/setup.c
@@ -28,6 +28,7 @@
 #include <asm/bootinfo.h>
 #include <asm/reboot.h>
 #include <asm/sibyte/board.h>
+#include <asm/smp-ops.h>
 
 #include <asm/fw/cfe/cfe_api.h>
 #include <asm/fw/cfe/cfe_error.h>
@@ -232,6 +233,9 @@ static int __init initrd_setup(char *str)
 
 #endif
 
+extern struct plat_smp_ops sb_smp_ops;
+extern struct plat_smp_ops bcm1480_smp_ops;
+
 /*
  * prom_init is called just after the cpu type is determined, from setup_arch()
  */
@@ -340,6 +344,13 @@ void __init prom_init(void)
 	arcs_cmdline[CL_SIZE-1] = 0;
 
 	prom_meminit();
+
+#if defined(CONFIG_SIBYTE_BCM112X) || defined(CONFIG_SIBYTE_SB1250)
+	register_smp_ops(&sb_smp_ops);
+#endif
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+	register_smp_ops(&bcm1480_smp_ops);
+#endif
 }
 
 void __init prom_free_prom_memory(void)
diff --git a/arch/mips/sibyte/cfe/smp.c b/arch/mips/sibyte/cfe/smp.c
deleted file mode 100644
index 534a62912f21..000000000000
--- a/arch/mips/sibyte/cfe/smp.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * Copyright (C) 2000, 2001, 2002, 2003 Broadcom Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- */
-
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <asm/processor.h>
-
-#include <asm/fw/cfe/cfe_api.h>
-#include <asm/fw/cfe/cfe_error.h>
-
-/*
- * Use CFE to find out how many CPUs are available, setting up
- * phys_cpu_present_map and the logical/physical mappings.
- * XXXKW will the boot CPU ever not be physical 0?
- *
- * Common setup before any secondaries are started
- */
-void __init plat_smp_setup(void)
-{
-	int i, num;
-
-	cpus_clear(phys_cpu_present_map);
-	cpu_set(0, phys_cpu_present_map);
-	__cpu_number_map[0] = 0;
-	__cpu_logical_map[0] = 0;
-
-	for (i = 1, num = 0; i < NR_CPUS; i++) {
-		if (cfe_cpu_stop(i) == 0) {
-			cpu_set(i, phys_cpu_present_map);
-			__cpu_number_map[i] = ++num;
-			__cpu_logical_map[num] = i;
-		}
-	}
-	printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num);
-}
-
-void __init plat_prepare_cpus(unsigned int max_cpus)
-{
-}
-
-/*
- * Setup the PC, SP, and GP of a secondary processor and start it
- * running!
- */
-void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
-{
-	int retval;
-
-	retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap,
-			       __KSTK_TOS(idle),
-			       (unsigned long)task_thread_info(idle), 0);
-	if (retval != 0)
-		printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval);
-}
-
-/*
- * Code to run on secondary just after probing the CPU
- */
-void __cpuinit prom_init_secondary(void)
-{
-#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
-	extern void bcm1480_smp_init(void);
-	bcm1480_smp_init();
-#elif defined(CONFIG_SIBYTE_SB1250)
-	extern void sb1250_smp_init(void);
-	sb1250_smp_init();
-#else
-#error invalid SMP configuration
-#endif
-}
-
-/*
- * Do any tidying up before marking online and running the idle
- * loop
- */
-void __cpuinit prom_smp_finish(void)
-{
-#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
-	extern void bcm1480_smp_finish(void);
-	bcm1480_smp_finish();
-#elif defined(CONFIG_SIBYTE_SB1250)
-	extern void sb1250_smp_finish(void);
-	sb1250_smp_finish();
-#else
-#error invalid SMP configuration
-#endif
-}
-
-/*
- * Final cleanup after all secondaries booted
- */
-void prom_cpus_done(void)
-{
-}
diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c
index 3f52c95a4eb8..0734b933e969 100644
--- a/arch/mips/sibyte/sb1250/smp.c
+++ b/arch/mips/sibyte/sb1250/smp.c
@@ -24,6 +24,7 @@
 
 #include <asm/mmu_context.h>
 #include <asm/io.h>
+#include <asm/fw/cfe/cfe_api.h>
 #include <asm/sibyte/sb1250.h>
 #include <asm/sibyte/sb1250_regs.h>
 #include <asm/sibyte/sb1250_int.h>
@@ -55,7 +56,43 @@ void __cpuinit sb1250_smp_init(void)
 	change_c0_status(ST0_IM, imask);
 }
 
-void __cpuinit sb1250_smp_finish(void)
+/*
+ * These are routines for dealing with the sb1250 smp capabilities
+ * independent of board/firmware
+ */
+
+/*
+ * Simple enough; everything is set up, so just poke the appropriate mailbox
+ * register, and we should be set
+ */
+static void sb1250_send_ipi_single(int cpu, unsigned int action)
+{
+	__raw_writeq((((u64)action) << 48), mailbox_set_regs[cpu]);
+}
+
+static inline void sb1250_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+	unsigned int i;
+
+	for_each_cpu_mask(i, mask)
+		sb1250_send_ipi_single(i, action);
+}
+
+/*
+ * Code to run on secondary just after probing the CPU
+ */
+static void __cpuinit sb1250_init_secondary(void)
+{
+	extern void sb1250_smp_init(void);
+
+	sb1250_smp_init();
+}
+
+/*
+ * Do any tidying up before marking online and running the idle
+ * loop
+ */
+static void __cpuinit sb1250_smp_finish(void)
 {
 	extern void sb1250_clockevent_init(void);
 
@@ -64,19 +101,68 @@ void __cpuinit sb1250_smp_finish(void)
 }
 
 /*
- * These are routines for dealing with the sb1250 smp capabilities
- * independent of board/firmware
+ * Final cleanup after all secondaries booted
  */
+static void sb1250_cpus_done(void)
+{
+}
 
 /*
- * Simple enough; everything is set up, so just poke the appropriate mailbox
- * register, and we should be set
+ * Setup the PC, SP, and GP of a secondary processor and start it
+ * running!
  */
-void core_send_ipi(int cpu, unsigned int action)
+static void __cpuinit sb1250_boot_secondary(int cpu, struct task_struct *idle)
 {
-	__raw_writeq((((u64)action) << 48), mailbox_set_regs[cpu]);
+	int retval;
+
+	retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap,
+			       __KSTK_TOS(idle),
+			       (unsigned long)task_thread_info(idle), 0);
+	if (retval != 0)
+		printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval);
 }
 
+/*
+ * Use CFE to find out how many CPUs are available, setting up
+ * phys_cpu_present_map and the logical/physical mappings.
+ * XXXKW will the boot CPU ever not be physical 0?
+ *
+ * Common setup before any secondaries are started
+ */
+static void __init sb1250_smp_setup(void)
+{
+	int i, num;
+
+	cpus_clear(phys_cpu_present_map);
+	cpu_set(0, phys_cpu_present_map);
+	__cpu_number_map[0] = 0;
+	__cpu_logical_map[0] = 0;
+
+	for (i = 1, num = 0; i < NR_CPUS; i++) {
+		if (cfe_cpu_stop(i) == 0) {
+			cpu_set(i, phys_cpu_present_map);
+			__cpu_number_map[i] = ++num;
+			__cpu_logical_map[num] = i;
+		}
+	}
+	printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num);
+}
+
+static void __init sb1250_prepare_cpus(unsigned int max_cpus)
+{
+}
+
+struct plat_smp_ops sb_smp_ops = {
+	.send_ipi_single	= sb1250_send_ipi_single,
+	.send_ipi_mask		= sb1250_send_ipi_mask,
+	.init_secondary		= sb1250_init_secondary,
+	.smp_finish		= sb1250_smp_finish,
+	.cpus_done		= sb1250_cpus_done,
+	.boot_secondary		= sb1250_boot_secondary,
+	.smp_setup		= sb1250_smp_setup,
+	.prepare_cpus		= sb1250_prepare_cpus,
+};
+
 void sb1250_mailbox_interrupt(void)
 {
 	int cpu = smp_processor_id();
diff --git a/include/asm-mips/sibyte/sb1250.h b/include/asm-mips/sibyte/sb1250.h
index 0dad844a3b5b..80c1a052662a 100644
--- a/include/asm-mips/sibyte/sb1250.h
+++ b/include/asm-mips/sibyte/sb1250.h
@@ -48,12 +48,10 @@ extern unsigned int zbbus_mhz;
 extern void sb1250_time_init(void);
 extern void sb1250_mask_irq(int cpu, int irq);
 extern void sb1250_unmask_irq(int cpu, int irq);
-extern void sb1250_smp_finish(void);
 
 extern void bcm1480_time_init(void);
 extern void bcm1480_mask_irq(int cpu, int irq);
 extern void bcm1480_unmask_irq(int cpu, int irq);
-extern void bcm1480_smp_finish(void);
 
 #define AT_spin \
 	__asm__ __volatile__ (		\
diff --git a/include/asm-mips/smp-ops.h b/include/asm-mips/smp-ops.h
new file mode 100644
index 000000000000..b17fdfb5d818
--- /dev/null
+++ b/include/asm-mips/smp-ops.h
@@ -0,0 +1,56 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * Copyright (C) 2000 - 2001 by Kanoj Sarcar (kanoj@sgi.com)
+ * Copyright (C) 2000 - 2001 by Silicon Graphics, Inc.
+ * Copyright (C) 2000, 2001, 2002 Ralf Baechle
+ * Copyright (C) 2000, 2001 Broadcom Corporation
+ */
+#ifndef __ASM_SMP_OPS_H
+#define __ASM_SMP_OPS_H
+
+#ifdef CONFIG_SMP
+
+#include <linux/cpumask.h>
+
+struct plat_smp_ops {
+	void (*send_ipi_single)(int cpu, unsigned int action);
+	void (*send_ipi_mask)(cpumask_t mask, unsigned int action);
+	void (*init_secondary)(void);
+	void (*smp_finish)(void);
+	void (*cpus_done)(void);
+	void (*boot_secondary)(int cpu, struct task_struct *idle);
+	void (*smp_setup)(void);
+	void (*prepare_cpus)(unsigned int max_cpus);
+};
+
+extern void register_smp_ops(struct plat_smp_ops *ops);
+
+static inline void plat_smp_setup(void)
+{
+	extern struct plat_smp_ops *mp_ops;	/* private */
+
+	mp_ops->smp_setup();
+}
+
+#else /* !CONFIG_SMP */
+
+struct plat_smp_ops;
+
+static inline void plat_smp_setup(void)
+{
+	/* UP, nothing to do ...  */
+}
+
+static inline void register_smp_ops(struct plat_smp_ops *ops)
+{
+}
+
+#endif /* !CONFIG_SMP */
+
+extern struct plat_smp_ops up_smp_ops;
+extern struct plat_smp_ops vsmp_smp_ops;
+
+#endif /* __ASM_SMP_OPS_H */
diff --git a/include/asm-mips/smp.h b/include/asm-mips/smp.h
index 23265879cee9..84fef1aeec0c 100644
--- a/include/asm-mips/smp.h
+++ b/include/asm-mips/smp.h
@@ -11,14 +11,13 @@
 #ifndef __ASM_SMP_H
 #define __ASM_SMP_H
 
-
-#ifdef CONFIG_SMP
-
 #include <linux/bitops.h>
 #include <linux/linkage.h>
 #include <linux/threads.h>
 #include <linux/cpumask.h>
+
 #include <asm/atomic.h>
+#include <asm/smp-ops.h>
 
 extern int smp_num_siblings;
 extern cpumask_t cpu_sibling_map[];
@@ -52,56 +51,6 @@ extern struct call_data_struct *call_data;
 extern cpumask_t phys_cpu_present_map;
 #define cpu_possible_map	phys_cpu_present_map
 
-/*
- * These are defined by the board-specific code.
- */
-
-/*
- * Cause the function described by call_data to be executed on the passed
- * cpu.  When the function has finished, increment the finished field of
- * call_data.
- */
-extern void core_send_ipi(int cpu, unsigned int action);
-
-static inline void core_send_ipi_mask(cpumask_t mask, unsigned int action)
-{
-	unsigned int i;
-
-	for_each_cpu_mask(i, mask)
-		core_send_ipi(i, action);
-}
-
-
-/*
- * Firmware CPU startup hook
- */
-extern void prom_boot_secondary(int cpu, struct task_struct *idle);
-
-/*
- *  After we've done initial boot, this function is called to allow the
- *  board code to clean up state, if needed
- */
-extern void prom_init_secondary(void);
-
-/*
- * Populate cpu_possible_map before smp_init, called from setup_arch.
- */
-extern void plat_smp_setup(void);
-
-/*
- * Called in smp_prepare_cpus.
- */
-extern void plat_prepare_cpus(unsigned int max_cpus);
-
-/*
- * Last chance for the board code to finish SMP initialization before
- * the CPU is "online".
- */
-extern void prom_smp_finish(void);
-
-/* Hook for after all CPUs are online */
-extern void prom_cpus_done(void);
-
 extern void asmlinkage smp_bootstrap(void);
 
 /*
@@ -111,11 +60,11 @@ extern void asmlinkage smp_bootstrap(void);
  */
 static inline void smp_send_reschedule(int cpu)
 {
-	core_send_ipi(cpu, SMP_RESCHEDULE_YOURSELF);
+	extern struct plat_smp_ops *mp_ops;	/* private */
+
+	mp_ops->send_ipi_single(cpu, SMP_RESCHEDULE_YOURSELF);
 }
 
 extern asmlinkage void smp_call_function_interrupt(void);
 
-#endif /* CONFIG_SMP */
-
 #endif /* __ASM_SMP_H */
-- 
cgit v1.2.3-59-g8ed1b


From e9c33572a92aa2ee565da5136745ea304ac23d9a Mon Sep 17 00:00:00 2001
From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Date: Mon, 26 Nov 2007 23:40:01 +0100
Subject: [MIPS] Use real cache invalidate

R10k non coherent machines need a real dma cache invalidate to get rid of
speculative stores in cache.  For other machines this promises a slight
speedup.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mm/c-r4k.c        | 4 ++--
 include/asm-mips/r4kcache.h | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index c91b59680695..06074948450d 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -589,7 +589,7 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size)
 		if (size >= scache_size)
 			r4k_blast_scache();
 		else
-			blast_scache_range(addr, addr + size);
+			blast_inv_scache_range(addr, addr + size);
 		return;
 	}
 
@@ -597,7 +597,7 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size)
 		r4k_blast_dcache();
 	} else {
 		R4600_HIT_CACHEOP_WAR_IMPL;
-		blast_dcache_range(addr, addr + size);
+		blast_inv_dcache_range(addr, addr + size);
 	}
 
 	bc_inv(addr, size);
diff --git a/include/asm-mips/r4kcache.h b/include/asm-mips/r4kcache.h
index 2b8466ffd3ca..4c140db36786 100644
--- a/include/asm-mips/r4kcache.h
+++ b/include/asm-mips/r4kcache.h
@@ -403,6 +403,13 @@ __BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64)
 __BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 64)
 __BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 128)
 
+__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 16)
+__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 32)
+__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 16)
+__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 32)
+__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 64)
+__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 128)
+
 /* build blast_xxx_range, protected_blast_xxx_range */
 #define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot) \
 static inline void prot##blast_##pfx##cache##_range(unsigned long start, \
-- 
cgit v1.2.3-59-g8ed1b


From 2064ba23e58daa929eec6f5e7a2abc24574a95b9 Mon Sep 17 00:00:00 2001
From: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Date: Sat, 24 Nov 2007 01:20:27 +0900
Subject: [MIPS] TXx9 watchdog support for rbhma3100,rbhma4200,rbhma4500

This patch adds support for txx9wdt driver to rbhma3100, rbhma4200 and
rbhma4500 platform.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/configs/jmr3927_defconfig                | 15 +++++-
 arch/mips/configs/rbhma4200_defconfig              | 15 +++++-
 arch/mips/configs/rbhma4500_defconfig              | 15 +++++-
 arch/mips/jmr3927/rbhma3100/setup.c                | 55 ++++++++++++++++++++++
 .../toshiba_rbtx4927/toshiba_rbtx4927_setup.c      | 55 ++++++++++++++++++++++
 arch/mips/tx4938/toshiba_rbtx4938/setup.c          | 25 ++++++++++
 include/asm-mips/tx4927/tx4927_pci.h               |  1 +
 7 files changed, 178 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/configs/jmr3927_defconfig b/arch/mips/configs/jmr3927_defconfig
index eb96791c33ea..4ace37838993 100644
--- a/arch/mips/configs/jmr3927_defconfig
+++ b/arch/mips/configs/jmr3927_defconfig
@@ -464,7 +464,6 @@ CONFIG_SERIAL_TXX9_STDSERIAL=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
 # CONFIG_HW_RANDOM is not set
 # CONFIG_RTC is not set
 # CONFIG_R3964 is not set
@@ -482,6 +481,20 @@ CONFIG_DEVPORT=y
 # CONFIG_W1 is not set
 # CONFIG_POWER_SUPPLY is not set
 # CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
+
+#
+# Watchdog Device Drivers
+#
+# CONFIG_SOFT_WATCHDOG is not set
+CONFIG_TXX9_WDT=y
+
+#
+# PCI-based Watchdog Cards
+#
+# CONFIG_PCIPCWATCHDOG is not set
+# CONFIG_WDTPCI is not set
 
 #
 # Multifunction device drivers
diff --git a/arch/mips/configs/rbhma4200_defconfig b/arch/mips/configs/rbhma4200_defconfig
index 9383a598094b..a67c698a82d9 100644
--- a/arch/mips/configs/rbhma4200_defconfig
+++ b/arch/mips/configs/rbhma4200_defconfig
@@ -431,7 +431,6 @@ CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
 # CONFIG_HW_RANDOM is not set
 # CONFIG_RTC is not set
 # CONFIG_R3964 is not set
@@ -449,6 +448,20 @@ CONFIG_DEVPORT=y
 # CONFIG_W1 is not set
 # CONFIG_POWER_SUPPLY is not set
 # CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
+
+#
+# Watchdog Device Drivers
+#
+# CONFIG_SOFT_WATCHDOG is not set
+CONFIG_TXX9_WDT=m
+
+#
+# PCI-based Watchdog Cards
+#
+# CONFIG_PCIPCWATCHDOG is not set
+# CONFIG_WDTPCI is not set
 
 #
 # Multifunction device drivers
diff --git a/arch/mips/configs/rbhma4500_defconfig b/arch/mips/configs/rbhma4500_defconfig
index d1b56cc0fd7c..ebc8ad4c6439 100644
--- a/arch/mips/configs/rbhma4500_defconfig
+++ b/arch/mips/configs/rbhma4500_defconfig
@@ -450,7 +450,6 @@ CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
 # CONFIG_HW_RANDOM is not set
 # CONFIG_RTC is not set
 # CONFIG_R3964 is not set
@@ -479,6 +478,20 @@ CONFIG_SPI_AT25=y
 # CONFIG_W1 is not set
 # CONFIG_POWER_SUPPLY is not set
 # CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
+
+#
+# Watchdog Device Drivers
+#
+# CONFIG_SOFT_WATCHDOG is not set
+CONFIG_TXX9_WDT=m
+
+#
+# PCI-based Watchdog Cards
+#
+# CONFIG_PCIPCWATCHDOG is not set
+# CONFIG_WDTPCI is not set
 
 #
 # Multifunction device drivers
diff --git a/arch/mips/jmr3927/rbhma3100/setup.c b/arch/mips/jmr3927/rbhma3100/setup.c
index 75cfe6559005..c886d804d303 100644
--- a/arch/mips/jmr3927/rbhma3100/setup.c
+++ b/arch/mips/jmr3927/rbhma3100/setup.c
@@ -35,6 +35,7 @@
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/platform_device.h>
+#include <linux/clk.h>
 #ifdef CONFIG_SERIAL_TXX9
 #include <linux/serial_core.h>
 #endif
@@ -233,6 +234,8 @@ static void __init tx3927_setup(void)
 	tx3927_ccfgptr->ccfg &= ~TX3927_CCFG_BEOW;
 	/* Disable PCI snoop */
 	tx3927_ccfgptr->ccfg &= ~TX3927_CCFG_PSNP;
+	/* do reset on watchdog */
+	tx3927_ccfgptr->ccfg |= TX3927_CCFG_WR;
 
 #ifdef DO_WRITE_THROUGH
 	/* Enable PCI SNOOP - with write through only */
@@ -383,3 +386,55 @@ static int __init jmr3927_rtc_init(void)
 	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
 }
 device_initcall(jmr3927_rtc_init);
+
+/* Watchdog support */
+
+static int __init txx9_wdt_init(unsigned long base)
+{
+	struct resource res = {
+		.start	= base,
+		.end	= base + 0x100 - 1,
+		.flags	= IORESOURCE_MEM,
+	};
+	struct platform_device *dev =
+		platform_device_register_simple("txx9wdt", -1, &res, 1);
+	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init jmr3927_wdt_init(void)
+{
+	return txx9_wdt_init(TX3927_TMR_REG(2));
+}
+device_initcall(jmr3927_wdt_init);
+
+/* Minimum CLK support */
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+	if (!strcmp(id, "imbus_clk"))
+		return (struct clk *)JMR3927_IMCLK;
+	return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+int clk_enable(struct clk *clk)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+	return (unsigned long)clk;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
index c29a5283237b..e466e5e711d8 100644
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
@@ -50,6 +50,7 @@
 #include <linux/pci.h>
 #include <linux/pm.h>
 #include <linux/platform_device.h>
+#include <linux/clk.h>
 
 #include <asm/bootinfo.h>
 #include <asm/io.h>
@@ -803,6 +804,8 @@ void __init plat_mem_setup(void)
 		}
 
 	/* CCFG */
+	/* do reset on watchdog */
+	tx4927_ccfgptr->ccfg |= TX4927_CCFG_WR;
 	/* enable Timeout BusError */
 	if (tx4927_ccfg_toeon)
 		tx4927_ccfgptr->ccfg |= TX4927_CCFG_TOE;
@@ -944,3 +947,55 @@ static int __init rbtx4927_ne_init(void)
 	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
 }
 device_initcall(rbtx4927_ne_init);
+
+/* Watchdog support */
+
+static int __init txx9_wdt_init(unsigned long base)
+{
+	struct resource res = {
+		.start	= base,
+		.end	= base + 0x100 - 1,
+		.flags	= IORESOURCE_MEM,
+	};
+	struct platform_device *dev =
+		platform_device_register_simple("txx9wdt", -1, &res, 1);
+	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init rbtx4927_wdt_init(void)
+{
+	return txx9_wdt_init(TX4927_TMR_REG(2) & 0xfffffffffULL);
+}
+device_initcall(rbtx4927_wdt_init);
+
+/* Minimum CLK support */
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+	if (!strcmp(id, "imbus_clk"))
+		return (struct clk *)50000000;
+	return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+int clk_enable(struct clk *clk)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+	return (unsigned long)clk;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/setup.c b/arch/mips/tx4938/toshiba_rbtx4938/setup.c
index 2333d9ff879d..61249f049cd6 100644
--- a/arch/mips/tx4938/toshiba_rbtx4938/setup.c
+++ b/arch/mips/tx4938/toshiba_rbtx4938/setup.c
@@ -724,6 +724,8 @@ void __init tx4938_board_setup(void)
 	/* CCFG */
 	/* clear WatchDogReset,BusErrorOnWrite flag (W1C) */
 	tx4938_ccfgptr->ccfg |= TX4938_CCFG_WDRST | TX4938_CCFG_BEOW;
+	/* do reset on watchdog */
+	tx4938_ccfgptr->ccfg |= TX4938_CCFG_WR;
 	/* clear PCIC1 reset */
 	if (tx4938_ccfgptr->clkctr & TX4938_CLKCTR_PCIC1RST)
 		tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIC1RST;
@@ -1121,12 +1123,35 @@ static int __init rbtx4938_spi_init(void)
 }
 arch_initcall(rbtx4938_spi_init);
 
+/* Watchdog support */
+
+static int __init txx9_wdt_init(unsigned long base)
+{
+	struct resource res = {
+		.start	= base,
+		.end	= base + 0x100 - 1,
+		.flags	= IORESOURCE_MEM,
+		.parent	= &tx4938_reg_resource,
+	};
+	struct platform_device *dev =
+		platform_device_register_simple("txx9wdt", -1, &res, 1);
+	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init rbtx4938_wdt_init(void)
+{
+	return txx9_wdt_init(TX4938_TMR_REG(2) & 0xfffffffffULL);
+}
+device_initcall(rbtx4938_wdt_init);
+
 /* Minimum CLK support */
 
 struct clk *clk_get(struct device *dev, const char *id)
 {
 	if (!strcmp(id, "spi-baseclk"))
 		return (struct clk *)(txx9_gbus_clock / 2 / 4);
+	if (!strcmp(id, "imbus_clk"))
+		return (struct clk *)(txx9_gbus_clock / 2);
 	return ERR_PTR(-ENOENT);
 }
 EXPORT_SYMBOL(clk_get);
diff --git a/include/asm-mips/tx4927/tx4927_pci.h b/include/asm-mips/tx4927/tx4927_pci.h
index 3f1e470192e3..0be77df70f2b 100644
--- a/include/asm-mips/tx4927/tx4927_pci.h
+++ b/include/asm-mips/tx4927/tx4927_pci.h
@@ -9,6 +9,7 @@
 #define __ASM_TX4927_TX4927_PCI_H
 
 #define TX4927_CCFG_TOE 0x00004000
+#define TX4927_CCFG_WR	0x00008000
 #define TX4927_CCFG_TINTDIS	0x01000000
 
 #define TX4927_PCIMEM      0x08000000
-- 
cgit v1.2.3-59-g8ed1b


From 930bff882296c02ca81db108672ef4ca06c37db5 Mon Sep 17 00:00:00 2001
From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Date: Sun, 25 Nov 2007 11:47:56 +0100
Subject: [MIPS] IP28: added cache barrier to assembly routines

IP28 needs special treatment to avoid speculative accesses. gcc
takes care for .c code, but for assembly code we need to do it
manually.

This is taken from Peter Fuersts IP28 patches.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/lib/memcpy.S       | 10 ++++++++++
 arch/mips/lib/memset.S       |  5 +++++
 arch/mips/lib/strncpy_user.S |  1 +
 include/asm-mips/asm.h       |  8 ++++++++
 4 files changed, 24 insertions(+)

(limited to 'arch')

diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S
index aded7b159052..01e450b1ebc9 100644
--- a/arch/mips/lib/memcpy.S
+++ b/arch/mips/lib/memcpy.S
@@ -199,6 +199,7 @@ FEXPORT(__copy_user)
 	 */
 #define rem t8
 
+	R10KCBARRIER(0(ra))
 	/*
 	 * The "issue break"s below are very approximate.
 	 * Issue delays for dcache fills will perturb the schedule, as will
@@ -231,6 +232,7 @@ both_aligned:
 	PREF(	1, 3*32(dst) )
 	.align	4
 1:
+	R10KCBARRIER(0(ra))
 EXC(	LOAD	t0, UNIT(0)(src),	l_exc)
 EXC(	LOAD	t1, UNIT(1)(src),	l_exc_copy)
 EXC(	LOAD	t2, UNIT(2)(src),	l_exc_copy)
@@ -272,6 +274,7 @@ EXC(	LOAD	t2, UNIT(2)(src),	l_exc_copy)
 EXC(	LOAD	t3, UNIT(3)(src),	l_exc_copy)
 	SUB	len, len, 4*NBYTES
 	ADD	src, src, 4*NBYTES
+	R10KCBARRIER(0(ra))
 EXC(	STORE	t0, UNIT(0)(dst),	s_exc_p4u)
 EXC(	STORE	t1, UNIT(1)(dst),	s_exc_p3u)
 EXC(	STORE	t2, UNIT(2)(dst),	s_exc_p2u)
@@ -287,6 +290,7 @@ less_than_4units:
 	beq	rem, len, copy_bytes
 	 nop
 1:
+	R10KCBARRIER(0(ra))
 EXC(	LOAD	t0, 0(src),		l_exc)
 	ADD	src, src, NBYTES
 	SUB	len, len, NBYTES
@@ -334,6 +338,7 @@ EXC(	LDFIRST	t3, FIRST(0)(src),	l_exc)
 EXC(	LDREST	t3, REST(0)(src),	l_exc_copy)
 	SUB	t2, t2, t1	# t2 = number of bytes copied
 	xor	match, t0, t1
+	R10KCBARRIER(0(ra))
 EXC(	STFIRST t3, FIRST(0)(dst),	s_exc)
 	beq	len, t2, done
 	 SUB	len, len, t2
@@ -354,6 +359,7 @@ src_unaligned_dst_aligned:
  * It's OK to load FIRST(N+1) before REST(N) because the two addresses
  * are to the same unit (unless src is aligned, but it's not).
  */
+	R10KCBARRIER(0(ra))
 EXC(	LDFIRST	t0, FIRST(0)(src),	l_exc)
 EXC(	LDFIRST	t1, FIRST(1)(src),	l_exc_copy)
 	SUB     len, len, 4*NBYTES
@@ -384,6 +390,7 @@ cleanup_src_unaligned:
 	beq	rem, len, copy_bytes
 	 nop
 1:
+	R10KCBARRIER(0(ra))
 EXC(	LDFIRST t0, FIRST(0)(src),	l_exc)
 EXC(	LDREST	t0, REST(0)(src),	l_exc_copy)
 	ADD	src, src, NBYTES
@@ -399,6 +406,7 @@ copy_bytes_checklen:
 	 nop
 copy_bytes:
 	/* 0 < len < NBYTES  */
+	R10KCBARRIER(0(ra))
 #define COPY_BYTE(N)			\
 EXC(	lb	t0, N(src), l_exc);	\
 	SUB	len, len, 1;		\
@@ -528,6 +536,7 @@ LEAF(__rmemcpy)					/* a0=dst a1=src a2=len */
 	ADD	a1, a2				# src = src + len
 
 r_end_bytes:
+	R10KCBARRIER(0(ra))
 	lb	t0, -1(a1)
 	SUB	a2, a2, 0x1
 	sb	t0, -1(a0)
@@ -542,6 +551,7 @@ r_out:
 	 move	a2, zero
 
 r_end_bytes_up:
+	R10KCBARRIER(0(ra))
 	lb	t0, (a1)
 	SUB	a2, a2, 0x1
 	sb	t0, (a0)
diff --git a/arch/mips/lib/memset.S b/arch/mips/lib/memset.S
index 3bf38422342f..c018a4721693 100644
--- a/arch/mips/lib/memset.S
+++ b/arch/mips/lib/memset.S
@@ -86,6 +86,7 @@ FEXPORT(__bzero)
 	.set		at
 #endif
 
+	R10KCBARRIER(0(ra))
 #ifdef __MIPSEB__
 	EX(LONG_S_L, a1, (a0), first_fixup)	/* make word/dword aligned */
 #endif
@@ -103,11 +104,13 @@ FEXPORT(__bzero)
 	PTR_ADDU	t1, a0			/* end address */
 	.set		reorder
 1:	PTR_ADDIU	a0, 64
+	R10KCBARRIER(0(ra))
 	f_fill64 a0, -64, a1, fwd_fixup
 	bne		t1, a0, 1b
 	.set		noreorder
 
 memset_partial:
+	R10KCBARRIER(0(ra))
 	PTR_LA		t1, 2f			/* where to start */
 #if LONGSIZE == 4
 	PTR_SUBU	t1, t0
@@ -129,6 +132,7 @@ memset_partial:
 
 	beqz		a2, 1f
 	 PTR_ADDU	a0, a2			/* What's left */
+	R10KCBARRIER(0(ra))
 #ifdef __MIPSEB__
 	EX(LONG_S_R, a1, -1(a0), last_fixup)
 #endif
@@ -143,6 +147,7 @@ small_memset:
 	 PTR_ADDU	t1, a0, a2
 
 1:	PTR_ADDIU	a0, 1			/* fill bytewise */
+	R10KCBARRIER(0(ra))
 	bne		t1, a0, 1b
 	 sb		a1, -1(a0)
 
diff --git a/arch/mips/lib/strncpy_user.S b/arch/mips/lib/strncpy_user.S
index 5c8fb9d6b7f9..8a63f72b81d3 100644
--- a/arch/mips/lib/strncpy_user.S
+++ b/arch/mips/lib/strncpy_user.S
@@ -38,6 +38,7 @@ FEXPORT(__strncpy_from_user_nocheck_asm)
 	.set		noreorder
 1:	EX(lbu, t0, (v1), fault)
 	PTR_ADDIU	v1, 1
+	R10KCBARRIER(0(ra))
 	beqz		t0, 2f
 	 sb		t0, (a0)
 	PTR_ADDIU	v0, 1
diff --git a/include/asm-mips/asm.h b/include/asm-mips/asm.h
index 12e17581b823..608cfcfbb3ea 100644
--- a/include/asm-mips/asm.h
+++ b/include/asm-mips/asm.h
@@ -398,4 +398,12 @@ symbol		=	value
 
 #define SSNOP		sll zero, zero, 1
 
+#ifdef CONFIG_SGI_IP28
+/* Inhibit speculative stores to volatile (e.g.DMA) or invalid addresses. */
+#include <asm/cacheops.h>
+#define R10KCBARRIER(addr)  cache   Cache_Barrier, addr;
+#else
+#define R10KCBARRIER(addr)
+#endif
+
 #endif /* __ASM_ASM_H */
-- 
cgit v1.2.3-59-g8ed1b


From c7c6b39050aed4af913c17970ebfb592bae757fc Mon Sep 17 00:00:00 2001
From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Date: Tue, 27 Nov 2007 19:31:33 +0100
Subject: [MIPS] Use correct dma flushing in dma_cache_sync()

Not cache coherent R10k systems (like IP28) need to do real cache
invalidates in dma_cache_sync().

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mm/dma-default.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 810535dd091b..ae39dd88b9aa 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -383,7 +383,7 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	BUG_ON(direction == DMA_NONE);
 
 	if (!plat_device_is_coherent(dev))
-		dma_cache_wback_inv((unsigned long)vaddr, size);
+		__dma_sync((unsigned long)vaddr, size, direction);
 }
 
 EXPORT_SYMBOL(dma_cache_sync);
-- 
cgit v1.2.3-59-g8ed1b


From 81149be11327cbad006f82318f46e0b68a7b14ad Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:14:58 +0000
Subject: [MIPS] Remove CONFIG_SIBYTE_PT{1120,1125,SWARM}

According to Broadcom the PT systems are production test systems which
never reached customers so no need to keep the fragmentary support we
currently have.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig                          | 13 -------------
 arch/mips/configs/atlas_defconfig          |  1 -
 arch/mips/configs/bigsur_defconfig         |  1 -
 arch/mips/configs/capcella_defconfig       |  1 -
 arch/mips/configs/cobalt_defconfig         |  1 -
 arch/mips/configs/db1000_defconfig         |  1 -
 arch/mips/configs/db1100_defconfig         |  1 -
 arch/mips/configs/db1200_defconfig         |  1 -
 arch/mips/configs/db1500_defconfig         |  1 -
 arch/mips/configs/db1550_defconfig         |  1 -
 arch/mips/configs/decstation_defconfig     |  1 -
 arch/mips/configs/e55_defconfig            |  1 -
 arch/mips/configs/emma2rh_defconfig        |  1 -
 arch/mips/configs/excite_defconfig         |  1 -
 arch/mips/configs/fulong_defconfig         |  1 -
 arch/mips/configs/ip22_defconfig           |  1 -
 arch/mips/configs/ip27_defconfig           |  1 -
 arch/mips/configs/ip32_defconfig           |  1 -
 arch/mips/configs/jazz_defconfig           |  1 -
 arch/mips/configs/jmr3927_defconfig        |  1 -
 arch/mips/configs/lasat_defconfig          |  1 -
 arch/mips/configs/malta_defconfig          |  1 -
 arch/mips/configs/mipssim_defconfig        |  1 -
 arch/mips/configs/mpc30x_defconfig         |  1 -
 arch/mips/configs/msp71xx_defconfig        |  1 -
 arch/mips/configs/mtx1_defconfig           |  1 -
 arch/mips/configs/pb1100_defconfig         |  1 -
 arch/mips/configs/pb1500_defconfig         |  1 -
 arch/mips/configs/pb1550_defconfig         |  1 -
 arch/mips/configs/pnx8550-jbs_defconfig    |  1 -
 arch/mips/configs/pnx8550-stb810_defconfig |  1 -
 arch/mips/configs/qemu_defconfig           |  1 -
 arch/mips/configs/rbhma4200_defconfig      |  1 -
 arch/mips/configs/rbhma4500_defconfig      |  1 -
 arch/mips/configs/rm200_defconfig          |  1 -
 arch/mips/configs/sb1250-swarm_defconfig   |  1 -
 arch/mips/configs/sead_defconfig           |  1 -
 arch/mips/configs/tb0219_defconfig         |  1 -
 arch/mips/configs/tb0226_defconfig         |  1 -
 arch/mips/configs/tb0287_defconfig         |  1 -
 arch/mips/configs/workpad_defconfig        |  1 -
 arch/mips/configs/wrppmc_defconfig         |  1 -
 arch/mips/configs/yosemite_defconfig       |  1 -
 arch/mips/defconfig                        |  1 -
 arch/mips/sibyte/cfe/setup.c               |  3 ---
 include/asm-mips/sibyte/board.h            |  6 ++----
 include/asm-mips/sibyte/swarm.h            | 18 ------------------
 47 files changed, 2 insertions(+), 81 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index b211e7961f28..00d6940d4ed7 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -546,19 +546,6 @@ config SIBYTE_SENTOSA
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
-config SIBYTE_PTSWARM
-	bool "Sibyte BCM91250PT-PTSWARM"
-	depends on EXPERIMENTAL
-	select BOOT_ELF32
-	select DMA_COHERENT
-	select NR_CPUS_DEFAULT_2
-	select SIBYTE_SB1250
-	select SWAP_IO_SPACE
-	select SYS_HAS_CPU_SB1
-	select SYS_SUPPORTS_BIG_ENDIAN
-	select SYS_SUPPORTS_HIGHMEM
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-
 config SIBYTE_BIGSUR
 	bool "Sibyte BCM91480B-BigSur"
 	select BOOT_ELF32
diff --git a/arch/mips/configs/atlas_defconfig b/arch/mips/configs/atlas_defconfig
index 62bcc887f2ca..c28db00fe469 100644
--- a/arch/mips/configs/atlas_defconfig
+++ b/arch/mips/configs/atlas_defconfig
@@ -47,7 +47,6 @@ CONFIG_MIPS_ATLAS=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig
index 3c70c9d16d01..4bb97a08c9e6 100644
--- a/arch/mips/configs/bigsur_defconfig
+++ b/arch/mips/configs/bigsur_defconfig
@@ -47,7 +47,6 @@ CONFIG_SIBYTE_BIGSUR=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/capcella_defconfig b/arch/mips/configs/capcella_defconfig
index 8ecbbb226c76..128908a542db 100644
--- a/arch/mips/configs/capcella_defconfig
+++ b/arch/mips/configs/capcella_defconfig
@@ -35,7 +35,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/cobalt_defconfig b/arch/mips/configs/cobalt_defconfig
index 36c13039e237..cb56ebc760e9 100644
--- a/arch/mips/configs/cobalt_defconfig
+++ b/arch/mips/configs/cobalt_defconfig
@@ -35,7 +35,6 @@ CONFIG_MIPS_COBALT=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/db1000_defconfig b/arch/mips/configs/db1000_defconfig
index 5a8b7acb7dd7..184f119ff29d 100644
--- a/arch/mips/configs/db1000_defconfig
+++ b/arch/mips/configs/db1000_defconfig
@@ -48,7 +48,6 @@ CONFIG_MIPS_DB1000=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/db1100_defconfig b/arch/mips/configs/db1100_defconfig
index d4ed90bca269..e61dbee45560 100644
--- a/arch/mips/configs/db1100_defconfig
+++ b/arch/mips/configs/db1100_defconfig
@@ -48,7 +48,6 @@ CONFIG_MIPS_DB1100=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/db1200_defconfig b/arch/mips/configs/db1200_defconfig
index a055657e6983..508faf44ca72 100644
--- a/arch/mips/configs/db1200_defconfig
+++ b/arch/mips/configs/db1200_defconfig
@@ -48,7 +48,6 @@ CONFIG_MIPS_DB1200=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/db1500_defconfig b/arch/mips/configs/db1500_defconfig
index 0ad08cf446ec..5abadf34924d 100644
--- a/arch/mips/configs/db1500_defconfig
+++ b/arch/mips/configs/db1500_defconfig
@@ -48,7 +48,6 @@ CONFIG_MIPS_DB1500=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/db1550_defconfig b/arch/mips/configs/db1550_defconfig
index 057c7d429c80..9ccdcf0848a6 100644
--- a/arch/mips/configs/db1550_defconfig
+++ b/arch/mips/configs/db1550_defconfig
@@ -48,7 +48,6 @@ CONFIG_MIPS_DB1550=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/decstation_defconfig b/arch/mips/configs/decstation_defconfig
index 2fb350432669..b661cd61ea51 100644
--- a/arch/mips/configs/decstation_defconfig
+++ b/arch/mips/configs/decstation_defconfig
@@ -47,7 +47,6 @@ CONFIG_MACH_DECSTATION=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/e55_defconfig b/arch/mips/configs/e55_defconfig
index d0d07faeb844..93d19a575008 100644
--- a/arch/mips/configs/e55_defconfig
+++ b/arch/mips/configs/e55_defconfig
@@ -35,7 +35,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/emma2rh_defconfig b/arch/mips/configs/emma2rh_defconfig
index d73d965f7615..f931bcb73ae6 100644
--- a/arch/mips/configs/emma2rh_defconfig
+++ b/arch/mips/configs/emma2rh_defconfig
@@ -47,7 +47,6 @@ CONFIG_MARKEINS=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/excite_defconfig b/arch/mips/configs/excite_defconfig
index 17a866057fd4..dc3058645acc 100644
--- a/arch/mips/configs/excite_defconfig
+++ b/arch/mips/configs/excite_defconfig
@@ -48,7 +48,6 @@ CONFIG_BASLER_EXCITE=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/fulong_defconfig b/arch/mips/configs/fulong_defconfig
index 4ef39a0527cc..d89eeb006c67 100644
--- a/arch/mips/configs/fulong_defconfig
+++ b/arch/mips/configs/fulong_defconfig
@@ -33,7 +33,6 @@ CONFIG_LEMOTE_FULONG=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig
index 670039bb1a7c..a6957a66838d 100644
--- a/arch/mips/configs/ip22_defconfig
+++ b/arch/mips/configs/ip22_defconfig
@@ -36,7 +36,6 @@ CONFIG_SGI_IP22=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig
index 892d4c38fd0d..8feb16a55b56 100644
--- a/arch/mips/configs/ip27_defconfig
+++ b/arch/mips/configs/ip27_defconfig
@@ -35,7 +35,6 @@ CONFIG_SGI_IP27=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig
index 47f49b60c5d6..ad547c7c6f81 100644
--- a/arch/mips/configs/ip32_defconfig
+++ b/arch/mips/configs/ip32_defconfig
@@ -47,7 +47,6 @@ CONFIG_SGI_IP32=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig
index fa655e247ecc..500daa9c3d82 100644
--- a/arch/mips/configs/jazz_defconfig
+++ b/arch/mips/configs/jazz_defconfig
@@ -47,7 +47,6 @@ CONFIG_MACH_JAZZ=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/jmr3927_defconfig b/arch/mips/configs/jmr3927_defconfig
index 4ace37838993..8dbfa19496cb 100644
--- a/arch/mips/configs/jmr3927_defconfig
+++ b/arch/mips/configs/jmr3927_defconfig
@@ -35,7 +35,6 @@ CONFIG_MIPS=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 CONFIG_TOSHIBA_JMR3927=y
diff --git a/arch/mips/configs/lasat_defconfig b/arch/mips/configs/lasat_defconfig
index 2c665fcef089..aa67a3baf53f 100644
--- a/arch/mips/configs/lasat_defconfig
+++ b/arch/mips/configs/lasat_defconfig
@@ -36,7 +36,6 @@ CONFIG_LASAT=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig
index 4b7e43c9f69a..9e32b029501e 100644
--- a/arch/mips/configs/malta_defconfig
+++ b/arch/mips/configs/malta_defconfig
@@ -36,7 +36,6 @@ CONFIG_MIPS_MALTA=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/mipssim_defconfig b/arch/mips/configs/mipssim_defconfig
index 61b72f5a953e..5a7b4ed76906 100644
--- a/arch/mips/configs/mipssim_defconfig
+++ b/arch/mips/configs/mipssim_defconfig
@@ -37,7 +37,6 @@ CONFIG_MIPS_SIM=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/mpc30x_defconfig b/arch/mips/configs/mpc30x_defconfig
index 8334350d7229..c2f7ce9ff603 100644
--- a/arch/mips/configs/mpc30x_defconfig
+++ b/arch/mips/configs/mpc30x_defconfig
@@ -35,7 +35,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/msp71xx_defconfig b/arch/mips/configs/msp71xx_defconfig
index 69278999c9a2..af4a41e06e87 100644
--- a/arch/mips/configs/msp71xx_defconfig
+++ b/arch/mips/configs/msp71xx_defconfig
@@ -48,7 +48,6 @@ CONFIG_PMC_MSP=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index b536d7c63790..be82f123324d 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -35,7 +35,6 @@ CONFIG_MACH_ALCHEMY=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/pb1100_defconfig b/arch/mips/configs/pb1100_defconfig
index 703d28db05b9..2d394578b969 100644
--- a/arch/mips/configs/pb1100_defconfig
+++ b/arch/mips/configs/pb1100_defconfig
@@ -48,7 +48,6 @@ CONFIG_MIPS_PB1100=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/pb1500_defconfig b/arch/mips/configs/pb1500_defconfig
index 82f0c5cee0dc..0d645621ce79 100644
--- a/arch/mips/configs/pb1500_defconfig
+++ b/arch/mips/configs/pb1500_defconfig
@@ -48,7 +48,6 @@ CONFIG_MIPS_PB1500=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/pb1550_defconfig b/arch/mips/configs/pb1550_defconfig
index 147a4fc7fdd8..210a06543116 100644
--- a/arch/mips/configs/pb1550_defconfig
+++ b/arch/mips/configs/pb1550_defconfig
@@ -48,7 +48,6 @@ CONFIG_MIPS_PB1550=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/pnx8550-jbs_defconfig b/arch/mips/configs/pnx8550-jbs_defconfig
index f6906b069e04..bee11ebed8ec 100644
--- a/arch/mips/configs/pnx8550-jbs_defconfig
+++ b/arch/mips/configs/pnx8550-jbs_defconfig
@@ -47,7 +47,6 @@ CONFIG_PNX8550_JBS=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/pnx8550-stb810_defconfig b/arch/mips/configs/pnx8550-stb810_defconfig
index b741f81696fb..b088a5ce268f 100644
--- a/arch/mips/configs/pnx8550-stb810_defconfig
+++ b/arch/mips/configs/pnx8550-stb810_defconfig
@@ -47,7 +47,6 @@ CONFIG_PNX8550_STB810=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/qemu_defconfig b/arch/mips/configs/qemu_defconfig
index b3caf5125c15..ec1a6a796599 100644
--- a/arch/mips/configs/qemu_defconfig
+++ b/arch/mips/configs/qemu_defconfig
@@ -47,7 +47,6 @@ CONFIG_QEMU=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/rbhma4200_defconfig b/arch/mips/configs/rbhma4200_defconfig
index a67c698a82d9..16494d0942b8 100644
--- a/arch/mips/configs/rbhma4200_defconfig
+++ b/arch/mips/configs/rbhma4200_defconfig
@@ -35,7 +35,6 @@ CONFIG_MIPS=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/rbhma4500_defconfig b/arch/mips/configs/rbhma4500_defconfig
index ebc8ad4c6439..aa9e0cf66143 100644
--- a/arch/mips/configs/rbhma4500_defconfig
+++ b/arch/mips/configs/rbhma4500_defconfig
@@ -35,7 +35,6 @@ CONFIG_MIPS=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig
index fc388118b114..7aaa6d6513f1 100644
--- a/arch/mips/configs/rm200_defconfig
+++ b/arch/mips/configs/rm200_defconfig
@@ -47,7 +47,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/sb1250-swarm_defconfig b/arch/mips/configs/sb1250-swarm_defconfig
index c2798229cbfb..4fe6a0b5c357 100644
--- a/arch/mips/configs/sb1250-swarm_defconfig
+++ b/arch/mips/configs/sb1250-swarm_defconfig
@@ -47,7 +47,6 @@ CONFIG_SIBYTE_SWARM=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/sead_defconfig b/arch/mips/configs/sead_defconfig
index 2b6282d132a8..aa5733779014 100644
--- a/arch/mips/configs/sead_defconfig
+++ b/arch/mips/configs/sead_defconfig
@@ -47,7 +47,6 @@ CONFIG_MIPS_SEAD=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/tb0219_defconfig b/arch/mips/configs/tb0219_defconfig
index 326aa7aa40ea..0ae553923f98 100644
--- a/arch/mips/configs/tb0219_defconfig
+++ b/arch/mips/configs/tb0219_defconfig
@@ -35,7 +35,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/tb0226_defconfig b/arch/mips/configs/tb0226_defconfig
index 9fd0faeacf53..e1f22023969d 100644
--- a/arch/mips/configs/tb0226_defconfig
+++ b/arch/mips/configs/tb0226_defconfig
@@ -35,7 +35,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/tb0287_defconfig b/arch/mips/configs/tb0287_defconfig
index 499b6bd7ee68..790e62bc0860 100644
--- a/arch/mips/configs/tb0287_defconfig
+++ b/arch/mips/configs/tb0287_defconfig
@@ -35,7 +35,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/workpad_defconfig b/arch/mips/configs/workpad_defconfig
index b52256ca0b53..1412c47517ff 100644
--- a/arch/mips/configs/workpad_defconfig
+++ b/arch/mips/configs/workpad_defconfig
@@ -35,7 +35,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/configs/wrppmc_defconfig b/arch/mips/configs/wrppmc_defconfig
index 7e410e10fed7..bbfeeeacc486 100644
--- a/arch/mips/configs/wrppmc_defconfig
+++ b/arch/mips/configs/wrppmc_defconfig
@@ -47,7 +47,6 @@ CONFIG_WR_PPMC=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/configs/yosemite_defconfig b/arch/mips/configs/yosemite_defconfig
index acaf0e21bb00..980dfb6417e9 100644
--- a/arch/mips/configs/yosemite_defconfig
+++ b/arch/mips/configs/yosemite_defconfig
@@ -47,7 +47,6 @@ CONFIG_PMC_YOSEMITE=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_RHONE is not set
 # CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CRHONE is not set
diff --git a/arch/mips/defconfig b/arch/mips/defconfig
index 670039bb1a7c..a6957a66838d 100644
--- a/arch/mips/defconfig
+++ b/arch/mips/defconfig
@@ -36,7 +36,6 @@ CONFIG_SGI_IP22=y
 # CONFIG_SIBYTE_SWARM is not set
 # CONFIG_SIBYTE_LITTLESUR is not set
 # CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_PTSWARM is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
 # CONFIG_TOSHIBA_JMR3927 is not set
diff --git a/arch/mips/sibyte/cfe/setup.c b/arch/mips/sibyte/cfe/setup.c
index 50d7c05e15b8..33fce826f8bf 100644
--- a/arch/mips/sibyte/cfe/setup.c
+++ b/arch/mips/sibyte/cfe/setup.c
@@ -301,9 +301,6 @@ void __init prom_init(void)
 			 *  command line
 			 */
 			strcpy(arcs_cmdline, "root=/dev/ram0 ");
-#ifdef CONFIG_SIBYTE_PTSWARM
-			strcat(arcs_cmdline, "console=ttyS0,115200 ");
-#endif
 		} else {
 			/* The loader should have set the command line */
 			/* too early for panic to do any good */
diff --git a/include/asm-mips/sibyte/board.h b/include/asm-mips/sibyte/board.h
index da198a1c8c81..25372ae0e814 100644
--- a/include/asm-mips/sibyte/board.h
+++ b/include/asm-mips/sibyte/board.h
@@ -19,10 +19,8 @@
 #ifndef _SIBYTE_BOARD_H
 #define _SIBYTE_BOARD_H
 
-#if defined(CONFIG_SIBYTE_SWARM) || defined(CONFIG_SIBYTE_PTSWARM) || \
-    defined(CONFIG_SIBYTE_PT1120) || defined(CONFIG_SIBYTE_PT1125) || \
-    defined(CONFIG_SIBYTE_CRHONE) || defined(CONFIG_SIBYTE_CRHINE) || \
-    defined(CONFIG_SIBYTE_LITTLESUR)
+#if defined(CONFIG_SIBYTE_SWARM) || defined(CONFIG_SIBYTE_CRHONE) || \
+    defined(CONFIG_SIBYTE_CRHINE) || defined(CONFIG_SIBYTE_LITTLESUR)
 #include <asm/sibyte/swarm.h>
 #endif
 
diff --git a/include/asm-mips/sibyte/swarm.h b/include/asm-mips/sibyte/swarm.h
index 540865fa7ec3..114d9d29ca9d 100644
--- a/include/asm-mips/sibyte/swarm.h
+++ b/include/asm-mips/sibyte/swarm.h
@@ -26,24 +26,6 @@
 #define SIBYTE_HAVE_PCMCIA 1
 #define SIBYTE_HAVE_IDE    1
 #endif
-#ifdef CONFIG_SIBYTE_PTSWARM
-#define SIBYTE_BOARD_NAME "PTSWARM"
-#define SIBYTE_HAVE_PCMCIA 1
-#define SIBYTE_HAVE_IDE    1
-#define SIBYTE_DEFAULT_CONSOLE "ttyS0,115200"
-#endif
-#ifdef CONFIG_SIBYTE_PT1120
-#define SIBYTE_BOARD_NAME "PT1120"
-#define SIBYTE_HAVE_PCMCIA 1
-#define SIBYTE_HAVE_IDE    1
-#define SIBYTE_DEFAULT_CONSOLE "ttyS0,115200"
-#endif
-#ifdef CONFIG_SIBYTE_PT1125
-#define SIBYTE_BOARD_NAME "PT1125"
-#define SIBYTE_HAVE_PCMCIA 1
-#define SIBYTE_HAVE_IDE    1
-#define SIBYTE_DEFAULT_CONSOLE "ttyS0,115200"
-#endif
 #ifdef CONFIG_SIBYTE_LITTLESUR
 #define SIBYTE_BOARD_NAME "BCM91250C2 (LittleSur)"
 #define SIBYTE_HAVE_PCMCIA 0
-- 
cgit v1.2.3-59-g8ed1b


From e2defae5a9b4f8d1acb058be212ef89c8763dc5b Mon Sep 17 00:00:00 2001
From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Date: Sun, 2 Dec 2007 13:00:32 +0100
Subject: [MIPS] IP28 support

Add support for SGI IP28 machines (Indigo 2 with R10k CPUs)
This work is mainly based on Peter Fuersts work.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig                                  |  67 ++-
 arch/mips/Makefile                                 |  14 +
 arch/mips/sgi-ip22/Makefile                        |   8 +-
 arch/mips/sgi-ip22/ip22-mc.c                       |   4 +
 arch/mips/sgi-ip22/ip28-berr.c                     | 502 +++++++++++++++++++++
 include/asm-mips/dma.h                             |   7 +-
 include/asm-mips/mach-ip28/cpu-feature-overrides.h |  50 ++
 include/asm-mips/mach-ip28/ds1286.h                |   4 +
 include/asm-mips/mach-ip28/spaces.h                |  22 +
 include/asm-mips/mach-ip28/war.h                   |  25 +
 10 files changed, 693 insertions(+), 10 deletions(-)
 create mode 100644 arch/mips/sgi-ip22/ip28-berr.c
 create mode 100644 include/asm-mips/mach-ip28/cpu-feature-overrides.h
 create mode 100644 include/asm-mips/mach-ip28/ds1286.h
 create mode 100644 include/asm-mips/mach-ip28/spaces.h
 create mode 100644 include/asm-mips/mach-ip28/war.h

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 00d6940d4ed7..01740ef77824 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -127,6 +127,7 @@ config MACH_JAZZ
 	select ARCH_MAY_HAVE_PC_FDC
 	select CEVT_R4K
 	select CSRC_R4K
+	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
 	select GENERIC_ISA_DMA
 	select IRQ_CPU
 	select I8253
@@ -401,6 +402,7 @@ config SGI_IP22
 	select BOOT_ELF32
 	select CEVT_R4K
 	select CSRC_R4K
+	select DEFAULT_SGI_PARTITION
 	select DMA_NONCOHERENT
 	select HW_HAS_EISA
 	select I8253
@@ -408,6 +410,12 @@ config SGI_IP22
 	select IP22_CPU_SCACHE
 	select IRQ_CPU
 	select GENERIC_ISA_DMA_SUPPORT_BROKEN
+	select SGI_HAS_DS1286
+	select SGI_HAS_I8042
+	select SGI_HAS_INDYDOG
+	select SGI_HAS_SEEQ
+	select SGI_HAS_WD93
+	select SGI_HAS_ZILOG
 	select SWAP_IO_SPACE
 	select SYS_HAS_CPU_R4X00
 	select SYS_HAS_CPU_R5000
@@ -425,6 +433,7 @@ config SGI_IP27
 	select ARC
 	select ARC64
 	select BOOT_ELF64
+	select DEFAULT_SGI_PARTITION
 	select DMA_IP27
 	select SYS_HAS_EARLY_PRINTK
 	select HW_HAS_PCI
@@ -441,6 +450,36 @@ config SGI_IP27
 	  workstations.  To compile a Linux kernel that runs on these, say Y
 	  here.
 
+config SGI_IP28
+	bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	select ARC
+	select ARC64
+	select BOOT_ELF64
+	select CEVT_R4K
+	select CSRC_R4K
+	select DEFAULT_SGI_PARTITION
+	select DMA_NONCOHERENT
+	select GENERIC_ISA_DMA_SUPPORT_BROKEN
+	select IRQ_CPU
+	select HW_HAS_EISA
+	select I8253
+	select I8259
+	select SGI_HAS_DS1286
+	select SGI_HAS_I8042
+	select SGI_HAS_INDYDOG
+	select SGI_HAS_SEEQ
+	select SGI_HAS_WD93
+	select SGI_HAS_ZILOG
+	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_R10000
+	select SYS_HAS_EARLY_PRINTK
+	select SYS_SUPPORTS_64BIT_KERNEL
+	select SYS_SUPPORTS_BIG_ENDIAN
+      help
+        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
+        kernel that runs on these, say Y here.
+
 config SGI_IP32
 	bool "SGI IP32 (O2)"
 	select ARC
@@ -567,6 +606,7 @@ config SNI_RM
 	select BOOT_ELF32
 	select CEVT_R4K
 	select CSRC_R4K
+	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
 	select DMA_NONCOHERENT
 	select GENERIC_ISA_DMA
 	select HW_HAS_EISA
@@ -939,6 +979,27 @@ config EMMA2RH
 config SERIAL_RM9000
 	bool
 
+config SGI_HAS_DS1286
+	bool
+
+config SGI_HAS_INDYDOG
+	bool
+
+config SGI_HAS_SEEQ
+	bool
+
+config SGI_HAS_WD93
+	bool
+
+config SGI_HAS_ZILOG
+	bool
+
+config SGI_HAS_I8042
+	bool
+
+config DEFAULT_SGI_PARTITION
+	bool
+
 config ARC32
 	bool
 
@@ -948,7 +1009,7 @@ config BOOT_ELF32
 config MIPS_L1_CACHE_SHIFT
 	int
 	default "4" if MACH_DECSTATION
-	default "7" if SGI_IP27 || SNI_RM
+	default "7" if SGI_IP27 || SGI_IP28 || SNI_RM
 	default "4" if PMC_MSP4200_EVAL
 	default "5"
 
@@ -957,7 +1018,7 @@ config HAVE_STD_PC_SERIAL_PORT
 
 config ARC_CONSOLE
 	bool "ARC console support"
-	depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
+	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
 
 config ARC_MEMORY
 	bool
@@ -966,7 +1027,7 @@ config ARC_MEMORY
 
 config ARC_PROMLIB
 	bool
-	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
+	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
 	default y
 
 config ARC64
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index a49127af33c8..dd668f3a8394 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -478,6 +478,20 @@ OBJCOPYFLAGS			:= --change-addresses=0x57ffffff80000000
 endif
 endif
 
+#
+# SGI IP28 (Indigo2 R10k)
+#
+# Set the load address to >= 0xa800000020080000 if you want to leave space for
+# symmon, 0xa800000020004000 for production kernels ?  Note that the value must
+# be 16kb aligned or the handling of the current variable will break.
+# Simplified: what IP22 does at 128MB+ in ksegN, IP28 does at 512MB+ in xkphys
+#
+#core-$(CONFIG_SGI_IP28)		+= arch/mips/sgi-ip22/ arch/mips/arc/arc_con.o
+core-$(CONFIG_SGI_IP28)		+= arch/mips/sgi-ip22/
+cflags-$(CONFIG_SGI_IP28)	+= -mr10k-cache-barrier=1 -Iinclude/asm-mips/mach-ip28
+#cflags-$(CONFIG_SGI_IP28)	+= -Iinclude/asm-mips/mach-ip28
+load-$(CONFIG_SGI_IP28)		+= 0xa800000020004000
+
 #
 # SGI-IP32 (O2)
 #
diff --git a/arch/mips/sgi-ip22/Makefile b/arch/mips/sgi-ip22/Makefile
index e3acb51b70b5..ef1564e40c8d 100644
--- a/arch/mips/sgi-ip22/Makefile
+++ b/arch/mips/sgi-ip22/Makefile
@@ -3,9 +3,11 @@
 # under Linux.
 #
 
-obj-y	+= ip22-mc.o ip22-hpc.o ip22-int.o ip22-berr.o \
-	   ip22-time.o ip22-nvram.o ip22-platform.o ip22-reset.o ip22-setup.o
+obj-y	+= ip22-mc.o ip22-hpc.o ip22-int.o ip22-time.o ip22-nvram.o \
+	   ip22-platform.o ip22-reset.o ip22-setup.o
 
+obj-$(CONFIG_SGI_IP22) += ip22-berr.o
+obj-$(CONFIG_SGI_IP28) += ip28-berr.o
 obj-$(CONFIG_EISA)	+= ip22-eisa.o
 
-EXTRA_CFLAGS += -Werror
+# EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/sgi-ip22/ip22-mc.c b/arch/mips/sgi-ip22/ip22-mc.c
index 01a805dcc67c..3f35d6367bec 100644
--- a/arch/mips/sgi-ip22/ip22-mc.c
+++ b/arch/mips/sgi-ip22/ip22-mc.c
@@ -4,6 +4,7 @@
  * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
  * Copyright (C) 1999 Andrew R. Baker (andrewb@uab.edu) - Indigo2 changes
  * Copyright (C) 2003 Ladislav Michl  (ladis@linux-mips.org)
+ * Copyright (C) 2004 Peter Fuerst    (pf@net.alphadv.de) - IP28
  */
 
 #include <linux/init.h>
@@ -137,9 +138,12 @@ void __init sgimc_init(void)
 	/* Step 2: Enable all parity checking in cpu control register
 	 *         zero.
 	 */
+	/* don't touch parity settings for IP28 */
+#ifndef CONFIG_SGI_IP28
 	tmp = sgimc->cpuctrl0;
 	tmp |= (SGIMC_CCTRL0_EPERRGIO | SGIMC_CCTRL0_EPERRMEM |
 		SGIMC_CCTRL0_R4KNOCHKPARR);
+#endif
 	sgimc->cpuctrl0 = tmp;
 
 	/* Step 3: Setup the MC write buffer depth, this is controlled
diff --git a/arch/mips/sgi-ip22/ip28-berr.c b/arch/mips/sgi-ip22/ip28-berr.c
new file mode 100644
index 000000000000..30e12e2ec4b5
--- /dev/null
+++ b/arch/mips/sgi-ip22/ip28-berr.c
@@ -0,0 +1,502 @@
+/*
+ * ip28-berr.c: Bus error handling.
+ *
+ * Copyright (C) 2002, 2003 Ladislav Michl (ladis@linux-mips.org)
+ * Copyright (C) 2005 Peter Fuerst (pf@net.alphadv.de) - IP28
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+
+#include <asm/addrspace.h>
+#include <asm/system.h>
+#include <asm/traps.h>
+#include <asm/branch.h>
+#include <asm/irq_regs.h>
+#include <asm/sgi/mc.h>
+#include <asm/sgi/hpc3.h>
+#include <asm/sgi/ioc.h>
+#include <asm/sgi/ip22.h>
+#include <asm/r4kcache.h>
+#include <asm/uaccess.h>
+#include <asm/bootinfo.h>
+
+static unsigned int count_be_is_fixup;
+static unsigned int count_be_handler;
+static unsigned int count_be_interrupt;
+static int debug_be_interrupt;
+
+static unsigned int cpu_err_stat;	/* Status reg for CPU */
+static unsigned int gio_err_stat;	/* Status reg for GIO */
+static unsigned int cpu_err_addr;	/* Error address reg for CPU */
+static unsigned int gio_err_addr;	/* Error address reg for GIO */
+static unsigned int extio_stat;
+static unsigned int hpc3_berr_stat;	/* Bus error interrupt status */
+
+struct hpc3_stat {
+	unsigned long addr;
+	unsigned int ctrl;
+	unsigned int cbp;
+	unsigned int ndptr;
+};
+
+static struct {
+	struct hpc3_stat pbdma[8];
+	struct hpc3_stat scsi[2];
+	struct hpc3_stat ethrx, ethtx;
+} hpc3;
+
+static struct {
+	unsigned long err_addr;
+	struct {
+		u32 lo;
+		u32 hi;
+	} tags[1][2], tagd[4][2], tagi[4][2]; /* Way 0/1 */
+} cache_tags;
+
+static inline void save_cache_tags(unsigned busaddr)
+{
+	unsigned long addr = CAC_BASE | busaddr;
+	int i;
+	cache_tags.err_addr = addr;
+
+	/*
+	 * Starting with a bus-address, save secondary cache (indexed by
+	 * PA[23..18:7..6]) tags first.
+	 */
+	addr &= ~1L;
+#define tag cache_tags.tags[0]
+	cache_op(Index_Load_Tag_S, addr);
+	tag[0].lo = read_c0_taglo();	/* PA[35:18], VA[13:12] */
+	tag[0].hi = read_c0_taghi();	/* PA[39:36] */
+	cache_op(Index_Load_Tag_S, addr | 1L);
+	tag[1].lo = read_c0_taglo();	/* PA[35:18], VA[13:12] */
+	tag[1].hi = read_c0_taghi();	/* PA[39:36] */
+#undef tag
+
+	/*
+	 * Save all primary data cache (indexed by VA[13:5]) tags which
+	 * might fit to this bus-address, knowing that VA[11:0] == PA[11:0].
+	 * Saving all tags and evaluating them later is easier and safer
+	 * than relying on VA[13:12] from the secondary cache tags to pick
+	 * matching primary tags here already.
+	 */
+	addr &= (0xffL << 56) | ((1 << 12) - 1);
+#define tag cache_tags.tagd[i]
+	for (i = 0; i < 4; ++i, addr += (1 << 12)) {
+		cache_op(Index_Load_Tag_D, addr);
+		tag[0].lo = read_c0_taglo();	/* PA[35:12] */
+		tag[0].hi = read_c0_taghi();	/* PA[39:36] */
+		cache_op(Index_Load_Tag_D, addr | 1L);
+		tag[1].lo = read_c0_taglo();	/* PA[35:12] */
+		tag[1].hi = read_c0_taghi();	/* PA[39:36] */
+	}
+#undef tag
+
+	/*
+	 * Save primary instruction cache (indexed by VA[13:6]) tags
+	 * the same way.
+	 */
+	addr &= (0xffL << 56) | ((1 << 12) - 1);
+#define tag cache_tags.tagi[i]
+	for (i = 0; i < 4; ++i, addr += (1 << 12)) {
+		cache_op(Index_Load_Tag_I, addr);
+		tag[0].lo = read_c0_taglo();	/* PA[35:12] */
+		tag[0].hi = read_c0_taghi();	/* PA[39:36] */
+		cache_op(Index_Load_Tag_I, addr | 1L);
+		tag[1].lo = read_c0_taglo();	/* PA[35:12] */
+		tag[1].hi = read_c0_taghi();	/* PA[39:36] */
+	}
+#undef tag
+}
+
+#define GIO_ERRMASK	0xff00
+#define CPU_ERRMASK	0x3f00
+
+static void save_and_clear_buserr(void)
+{
+	int i;
+
+	/* save status registers */
+	cpu_err_addr = sgimc->cerr;
+	cpu_err_stat = sgimc->cstat;
+	gio_err_addr = sgimc->gerr;
+	gio_err_stat = sgimc->gstat;
+	extio_stat = sgioc->extio;
+	hpc3_berr_stat = hpc3c0->bestat;
+
+	hpc3.scsi[0].addr  = (unsigned long)&hpc3c0->scsi_chan0;
+	hpc3.scsi[0].ctrl  = hpc3c0->scsi_chan0.ctrl; /* HPC3_SCTRL_ACTIVE ? */
+	hpc3.scsi[0].cbp   = hpc3c0->scsi_chan0.cbptr;
+	hpc3.scsi[0].ndptr = hpc3c0->scsi_chan0.ndptr;
+
+	hpc3.scsi[1].addr  = (unsigned long)&hpc3c0->scsi_chan1;
+	hpc3.scsi[1].ctrl  = hpc3c0->scsi_chan1.ctrl; /* HPC3_SCTRL_ACTIVE ? */
+	hpc3.scsi[1].cbp   = hpc3c0->scsi_chan1.cbptr;
+	hpc3.scsi[1].ndptr = hpc3c0->scsi_chan1.ndptr;
+
+	hpc3.ethrx.addr  = (unsigned long)&hpc3c0->ethregs.rx_cbptr;
+	hpc3.ethrx.ctrl  = hpc3c0->ethregs.rx_ctrl; /* HPC3_ERXCTRL_ACTIVE ? */
+	hpc3.ethrx.cbp   = hpc3c0->ethregs.rx_cbptr;
+	hpc3.ethrx.ndptr = hpc3c0->ethregs.rx_ndptr;
+
+	hpc3.ethtx.addr  = (unsigned long)&hpc3c0->ethregs.tx_cbptr;
+	hpc3.ethtx.ctrl  = hpc3c0->ethregs.tx_ctrl; /* HPC3_ETXCTRL_ACTIVE ? */
+	hpc3.ethtx.cbp   = hpc3c0->ethregs.tx_cbptr;
+	hpc3.ethtx.ndptr = hpc3c0->ethregs.tx_ndptr;
+
+	for (i = 0; i < 8; ++i) {
+		/* HPC3_PDMACTRL_ISACT ? */
+		hpc3.pbdma[i].addr  = (unsigned long)&hpc3c0->pbdma[i];
+		hpc3.pbdma[i].ctrl  = hpc3c0->pbdma[i].pbdma_ctrl;
+		hpc3.pbdma[i].cbp   = hpc3c0->pbdma[i].pbdma_bptr;
+		hpc3.pbdma[i].ndptr = hpc3c0->pbdma[i].pbdma_dptr;
+	}
+	i = 0;
+	if (gio_err_stat & CPU_ERRMASK)
+		i = gio_err_addr;
+	if (cpu_err_stat & CPU_ERRMASK)
+		i = cpu_err_addr;
+	save_cache_tags(i);
+
+	sgimc->cstat = sgimc->gstat = 0;
+}
+
+static void print_cache_tags(void)
+{
+	u32 scb, scw;
+	int i;
+
+	printk(KERN_ERR "Cache tags @ %08x:\n", (unsigned)cache_tags.err_addr);
+
+	/* PA[31:12] shifted to PTag0 (PA[35:12]) format */
+	scw = (cache_tags.err_addr >> 4) & 0x0fffff00;
+
+	scb = cache_tags.err_addr & ((1 << 12) - 1) & ~((1 << 5) - 1);
+	for (i = 0; i < 4; ++i) { /* for each possible VA[13:12] value */
+		if ((cache_tags.tagd[i][0].lo & 0x0fffff00) != scw &&
+		    (cache_tags.tagd[i][1].lo & 0x0fffff00) != scw)
+		    continue;
+		printk(KERN_ERR
+		       "D: 0: %08x %08x, 1: %08x %08x  (VA[13:5]  %04x)\n",
+			cache_tags.tagd[i][0].hi, cache_tags.tagd[i][0].lo,
+			cache_tags.tagd[i][1].hi, cache_tags.tagd[i][1].lo,
+			scb | (1 << 12)*i);
+	}
+	scb = cache_tags.err_addr & ((1 << 12) - 1) & ~((1 << 6) - 1);
+	for (i = 0; i < 4; ++i) { /* for each possible VA[13:12] value */
+		if ((cache_tags.tagi[i][0].lo & 0x0fffff00) != scw &&
+		    (cache_tags.tagi[i][1].lo & 0x0fffff00) != scw)
+		    continue;
+		printk(KERN_ERR
+		       "I: 0: %08x %08x, 1: %08x %08x  (VA[13:6]  %04x)\n",
+			cache_tags.tagi[i][0].hi, cache_tags.tagi[i][0].lo,
+			cache_tags.tagi[i][1].hi, cache_tags.tagi[i][1].lo,
+			scb | (1 << 12)*i);
+	}
+	i = read_c0_config();
+	scb = i & (1 << 13) ? 7:6;      /* scblksize = 2^[7..6] */
+	scw = ((i >> 16) & 7) + 19 - 1; /* scwaysize = 2^[24..19] / 2 */
+
+	i = ((1 << scw) - 1) & ~((1 << scb) - 1);
+	printk(KERN_ERR "S: 0: %08x %08x, 1: %08x %08x  (PA[%u:%u] %05x)\n",
+		cache_tags.tags[0][0].hi, cache_tags.tags[0][0].lo,
+		cache_tags.tags[0][1].hi, cache_tags.tags[0][1].lo,
+		scw-1, scb, i & (unsigned)cache_tags.err_addr);
+}
+
+static inline const char *cause_excode_text(int cause)
+{
+	static const char *txt[32] =
+	{	"Interrupt",
+		"TLB modification",
+		"TLB (load or instruction fetch)",
+		"TLB (store)",
+		"Address error (load or instruction fetch)",
+		"Address error (store)",
+		"Bus error (instruction fetch)",
+		"Bus error (data: load or store)",
+		"Syscall",
+		"Breakpoint",
+		"Reserved instruction",
+		"Coprocessor unusable",
+		"Arithmetic Overflow",
+		"Trap",
+		"14",
+		"Floating-Point",
+		"16", "17", "18", "19", "20", "21", "22",
+		"Watch Hi/Lo",
+		"24", "25", "26", "27", "28", "29", "30", "31",
+	};
+	return txt[(cause & 0x7c) >> 2];
+}
+
+static void print_buserr(const struct pt_regs *regs)
+{
+	const int field = 2 * sizeof(unsigned long);
+	int error = 0;
+
+	if (extio_stat & EXTIO_MC_BUSERR) {
+		printk(KERN_ERR "MC Bus Error\n");
+		error |= 1;
+	}
+	if (extio_stat & EXTIO_HPC3_BUSERR) {
+		printk(KERN_ERR "HPC3 Bus Error 0x%x:<id=0x%x,%s,lane=0x%x>\n",
+			hpc3_berr_stat,
+			(hpc3_berr_stat & HPC3_BESTAT_PIDMASK) >>
+					  HPC3_BESTAT_PIDSHIFT,
+			(hpc3_berr_stat & HPC3_BESTAT_CTYPE) ? "PIO" : "DMA",
+			hpc3_berr_stat & HPC3_BESTAT_BLMASK);
+		error |= 2;
+	}
+	if (extio_stat & EXTIO_EISA_BUSERR) {
+		printk(KERN_ERR "EISA Bus Error\n");
+		error |= 4;
+	}
+	if (cpu_err_stat & CPU_ERRMASK) {
+		printk(KERN_ERR "CPU error 0x%x<%s%s%s%s%s%s> @ 0x%08x\n",
+			cpu_err_stat,
+			cpu_err_stat & SGIMC_CSTAT_RD ? "RD " : "",
+			cpu_err_stat & SGIMC_CSTAT_PAR ? "PAR " : "",
+			cpu_err_stat & SGIMC_CSTAT_ADDR ? "ADDR " : "",
+			cpu_err_stat & SGIMC_CSTAT_SYSAD_PAR ? "SYSAD " : "",
+			cpu_err_stat & SGIMC_CSTAT_SYSCMD_PAR ? "SYSCMD " : "",
+			cpu_err_stat & SGIMC_CSTAT_BAD_DATA ? "BAD_DATA " : "",
+			cpu_err_addr);
+		error |= 8;
+	}
+	if (gio_err_stat & GIO_ERRMASK) {
+		printk(KERN_ERR "GIO error 0x%x:<%s%s%s%s%s%s%s%s> @ 0x%08x\n",
+			gio_err_stat,
+			gio_err_stat & SGIMC_GSTAT_RD ? "RD " : "",
+			gio_err_stat & SGIMC_GSTAT_WR ? "WR " : "",
+			gio_err_stat & SGIMC_GSTAT_TIME ? "TIME " : "",
+			gio_err_stat & SGIMC_GSTAT_PROM ? "PROM " : "",
+			gio_err_stat & SGIMC_GSTAT_ADDR ? "ADDR " : "",
+			gio_err_stat & SGIMC_GSTAT_BC ? "BC " : "",
+			gio_err_stat & SGIMC_GSTAT_PIO_RD ? "PIO_RD " : "",
+			gio_err_stat & SGIMC_GSTAT_PIO_WR ? "PIO_WR " : "",
+			gio_err_addr);
+		error |= 16;
+	}
+	if (!error)
+		printk(KERN_ERR "MC: Hmm, didn't find any error condition.\n");
+	else {
+		printk(KERN_ERR "CP0: config %08x,  "
+			"MC: cpuctrl0/1: %08x/%05x, giopar: %04x\n"
+			"MC: cpu/gio_memacc: %08x/%05x, memcfg0/1: %08x/%08x\n",
+			read_c0_config(),
+			sgimc->cpuctrl0, sgimc->cpuctrl0, sgimc->giopar,
+			sgimc->cmacc, sgimc->gmacc,
+			sgimc->mconfig0, sgimc->mconfig1);
+		print_cache_tags();
+	}
+	printk(KERN_ALERT "%s, epc == %0*lx, ra == %0*lx\n",
+	       cause_excode_text(regs->cp0_cause),
+	       field, regs->cp0_epc, field, regs->regs[31]);
+}
+
+/*
+ * Check, whether MC's (virtual) DMA address caused the bus error.
+ * See "Virtual DMA Specification", Draft 1.5, Feb 13 1992, SGI
+ */
+
+static int addr_is_ram(unsigned long addr, unsigned sz)
+{
+	int i;
+
+	for (i = 0; i < boot_mem_map.nr_map; i++) {
+		unsigned long a = boot_mem_map.map[i].addr;
+		if (a <= addr && addr+sz <= a+boot_mem_map.map[i].size)
+			return 1;
+	}
+	return 0;
+}
+
+static int check_microtlb(u32 hi, u32 lo, unsigned long vaddr)
+{
+	/* This is likely rather similar to correct code ;-) */
+
+	vaddr &= 0x7fffffff; /* Doc. states that top bit is ignored */
+
+	/* If tlb-entry is valid and VPN-high (bits [30:21] ?) matches... */
+	if ((lo & 2) && (vaddr >> 21) == ((hi<<1) >> 22)) {
+		u32 ctl = sgimc->dma_ctrl;
+		if (ctl & 1) {
+			unsigned int pgsz = (ctl & 2) ? 14:12; /* 16k:4k */
+			/* PTEIndex is VPN-low (bits [22:14]/[20:12] ?) */
+			unsigned long pte = (lo >> 6) << 12; /* PTEBase */
+			pte += 8*((vaddr >> pgsz) & 0x1ff);
+			if (addr_is_ram(pte, 8)) {
+				/*
+				 * Note: Since DMA hardware does look up
+				 * translation on its own, this PTE *must*
+				 * match the TLB/EntryLo-register format !
+				 */
+				unsigned long a = *(unsigned long *)
+						PHYS_TO_XKSEG_UNCACHED(pte);
+				a = (a & 0x3f) << 6; /* PFN */
+				a += vaddr & ((1 << pgsz) - 1);
+				return (cpu_err_addr == a);
+			}
+		}
+	}
+	return 0;
+}
+
+static int check_vdma_memaddr(void)
+{
+	if (cpu_err_stat & CPU_ERRMASK) {
+		u32 a = sgimc->maddronly;
+
+		if (!(sgimc->dma_ctrl & 0x100)) /* Xlate-bit clear ? */
+			return (cpu_err_addr == a);
+
+		if (check_microtlb(sgimc->dtlb_hi0, sgimc->dtlb_lo0, a) ||
+		    check_microtlb(sgimc->dtlb_hi1, sgimc->dtlb_lo1, a) ||
+		    check_microtlb(sgimc->dtlb_hi2, sgimc->dtlb_lo2, a) ||
+		    check_microtlb(sgimc->dtlb_hi3, sgimc->dtlb_lo3, a))
+			return 1;
+	}
+	return 0;
+}
+
+static int check_vdma_gioaddr(void)
+{
+	if (gio_err_stat & GIO_ERRMASK) {
+		u32 a = sgimc->gio_dma_trans;
+		a = (sgimc->gmaddronly & ~a) | (sgimc->gio_dma_sbits & a);
+		return (gio_err_addr == a);
+	}
+	return 0;
+}
+
+/*
+ * MC sends an interrupt whenever bus or parity errors occur. In addition,
+ * if the error happened during a CPU read, it also asserts the bus error
+ * pin on the R4K. Code in bus error handler save the MC bus error registers
+ * and then clear the interrupt when this happens.
+ */
+
+static int ip28_be_interrupt(const struct pt_regs *regs)
+{
+	int i;
+
+	save_and_clear_buserr();
+	/*
+	 * Try to find out, whether we got here by a mispredicted speculative
+	 * load/store operation.  If so, it's not fatal, we can go on.
+	 */
+	/* Any cause other than "Interrupt" (ExcCode 0) is fatal. */
+	if (regs->cp0_cause & CAUSEF_EXCCODE)
+		goto mips_be_fatal;
+
+	/* Any cause other than "Bus error interrupt" (IP6) is weird. */
+	if ((regs->cp0_cause & CAUSEF_IP6) != CAUSEF_IP6)
+		goto mips_be_fatal;
+
+	if (extio_stat & (EXTIO_HPC3_BUSERR | EXTIO_EISA_BUSERR))
+		goto mips_be_fatal;
+
+	/* Any state other than "Memory bus error" is fatal. */
+	if (cpu_err_stat & CPU_ERRMASK & ~SGIMC_CSTAT_ADDR)
+		goto mips_be_fatal;
+
+	/* GIO errors other than timeouts are fatal */
+	if (gio_err_stat & GIO_ERRMASK & ~SGIMC_GSTAT_TIME)
+		goto mips_be_fatal;
+
+	/*
+	 * Now we have an asynchronous bus error, speculatively or DMA caused.
+	 * Need to search all DMA descriptors for the error address.
+	 */
+	for (i = 0; i < sizeof(hpc3)/sizeof(struct hpc3_stat); ++i) {
+		struct hpc3_stat *hp = (struct hpc3_stat *)&hpc3 + i;
+		if ((cpu_err_stat & CPU_ERRMASK) &&
+		    (cpu_err_addr == hp->ndptr || cpu_err_addr == hp->cbp))
+			break;
+		if ((gio_err_stat & GIO_ERRMASK) &&
+		    (gio_err_addr == hp->ndptr || gio_err_addr == hp->cbp))
+			break;
+	}
+	if (i < sizeof(hpc3)/sizeof(struct hpc3_stat)) {
+		struct hpc3_stat *hp = (struct hpc3_stat *)&hpc3 + i;
+		printk(KERN_ERR "at DMA addresses: HPC3 @ %08lx:"
+		       " ctl %08x, ndp %08x, cbp %08x\n",
+		       CPHYSADDR(hp->addr), hp->ctrl, hp->ndptr, hp->cbp);
+		goto mips_be_fatal;
+	}
+	/* Check MC's virtual DMA stuff. */
+	if (check_vdma_memaddr()) {
+		printk(KERN_ERR "at GIO DMA: mem address 0x%08x.\n",
+			sgimc->maddronly);
+		goto mips_be_fatal;
+	}
+	if (check_vdma_gioaddr()) {
+		printk(KERN_ERR "at GIO DMA: gio address 0x%08x.\n",
+			sgimc->gmaddronly);
+		goto mips_be_fatal;
+	}
+	/* A speculative bus error... */
+	if (debug_be_interrupt) {
+		print_buserr(regs);
+		printk(KERN_ERR "discarded!\n");
+	}
+	return MIPS_BE_DISCARD;
+
+mips_be_fatal:
+	print_buserr(regs);
+	return MIPS_BE_FATAL;
+}
+
+void ip22_be_interrupt(int irq)
+{
+	const struct pt_regs *regs = get_irq_regs();
+
+	count_be_interrupt++;
+
+	if (ip28_be_interrupt(regs) != MIPS_BE_DISCARD) {
+		/* Assume it would be too dangerous to continue ... */
+		die_if_kernel("Oops", regs);
+		force_sig(SIGBUS, current);
+	} else if (debug_be_interrupt)
+		show_regs((struct pt_regs *)regs);
+}
+
+static int ip28_be_handler(struct pt_regs *regs, int is_fixup)
+{
+	/*
+	 * We arrive here only in the unusual case of do_be() invocation,
+	 * i.e. by a bus error exception without a bus error interrupt.
+	 */
+	if (is_fixup) {
+		count_be_is_fixup++;
+		save_and_clear_buserr();
+		return MIPS_BE_FIXUP;
+	}
+	count_be_handler++;
+	return ip28_be_interrupt(regs);
+}
+
+void __init ip22_be_init(void)
+{
+	board_be_handler = ip28_be_handler;
+}
+
+int ip28_show_be_info(struct seq_file *m)
+{
+	seq_printf(m, "IP28 be fixups\t\t: %u\n", count_be_is_fixup);
+	seq_printf(m, "IP28 be interrupts\t: %u\n", count_be_interrupt);
+	seq_printf(m, "IP28 be handler\t\t: %u\n", count_be_handler);
+
+	return 0;
+}
+
+static int __init debug_be_setup(char *str)
+{
+	debug_be_interrupt++;
+	return 1;
+}
+__setup("ip28_debug_be", debug_be_setup);
diff --git a/include/asm-mips/dma.h b/include/asm-mips/dma.h
index d6a6c21f16db..1353c81065d1 100644
--- a/include/asm-mips/dma.h
+++ b/include/asm-mips/dma.h
@@ -84,10 +84,9 @@
  * Deskstations or Acer PICA but not the much more versatile DMA logic used
  * for the local devices on Acer PICA or Magnums.
  */
-#ifdef CONFIG_SGI_IP22
-/* Horrible hack to have a correct DMA window on IP22 */
-#include <asm/sgi/mc.h>
-#define MAX_DMA_ADDRESS		(PAGE_OFFSET + SGIMC_SEG0_BADDR + 0x01000000)
+#if defined(CONFIG_SGI_IP22) || defined(CONFIG_SGI_IP28)
+/* don't care; ISA bus master won't work, ISA slave DMA supports 32bit addr */
+#define MAX_DMA_ADDRESS		PAGE_OFFSET
 #else
 #define MAX_DMA_ADDRESS		(PAGE_OFFSET + 0x01000000)
 #endif
diff --git a/include/asm-mips/mach-ip28/cpu-feature-overrides.h b/include/asm-mips/mach-ip28/cpu-feature-overrides.h
new file mode 100644
index 000000000000..9a53b326f848
--- /dev/null
+++ b/include/asm-mips/mach-ip28/cpu-feature-overrides.h
@@ -0,0 +1,50 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Ralf Baechle
+ * 6/2004	pf
+ */
+#ifndef __ASM_MACH_IP28_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_IP28_CPU_FEATURE_OVERRIDES_H
+
+/*
+ * IP28 only comes with R10000 family processors all using the same config
+ */
+#define cpu_has_watch		1
+#define cpu_has_mips16		0
+#define cpu_has_divec		0
+#define cpu_has_vce		0
+#define cpu_has_cache_cdex_p	0
+#define cpu_has_cache_cdex_s	0
+#define cpu_has_prefetch	1
+#define cpu_has_mcheck		0
+#define cpu_has_ejtag		0
+
+#define cpu_has_llsc		1
+#define cpu_has_vtag_icache	0
+#define cpu_has_dc_aliases	0 /* see probe_pcache() */
+#define cpu_has_ic_fills_f_dc	0
+#define cpu_has_dsp		0
+#define cpu_icache_snoops_remote_store  1
+#define cpu_has_mipsmt		0
+#define cpu_has_userlocal	0
+
+#define cpu_has_nofpuex		0
+#define cpu_has_64bits		1
+
+#define cpu_has_4kex		1
+#define cpu_has_4k_cache	1
+
+#define cpu_has_inclusive_pcaches	1
+
+#define cpu_dcache_line_size()	32
+#define cpu_icache_line_size()	64
+
+#define cpu_has_mips32r1	0
+#define cpu_has_mips32r2	0
+#define cpu_has_mips64r1	0
+#define cpu_has_mips64r2	0
+
+#endif /* __ASM_MACH_IP28_CPU_FEATURE_OVERRIDES_H */
diff --git a/include/asm-mips/mach-ip28/ds1286.h b/include/asm-mips/mach-ip28/ds1286.h
new file mode 100644
index 000000000000..471bb9a33e0f
--- /dev/null
+++ b/include/asm-mips/mach-ip28/ds1286.h
@@ -0,0 +1,4 @@
+#ifndef __ASM_MACH_IP28_DS1286_H
+#define __ASM_MACH_IP28_DS1286_H
+#include <asm/mach-ip22/ds1286.h>
+#endif /* __ASM_MACH_IP28_DS1286_H */
diff --git a/include/asm-mips/mach-ip28/spaces.h b/include/asm-mips/mach-ip28/spaces.h
new file mode 100644
index 000000000000..05aabb27e5e7
--- /dev/null
+++ b/include/asm-mips/mach-ip28/spaces.h
@@ -0,0 +1,22 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994 - 1999, 2000, 03, 04 Ralf Baechle
+ * Copyright (C) 2000, 2002  Maciej W. Rozycki
+ * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc.
+ * 2004	pf
+ */
+#ifndef _ASM_MACH_IP28_SPACES_H
+#define _ASM_MACH_IP28_SPACES_H
+
+#define CAC_BASE		0xa800000000000000
+
+#define HIGHMEM_START		(~0UL)
+
+#define PHYS_OFFSET		_AC(0x20000000, UL)
+
+#include <asm/mach-generic/spaces.h>
+
+#endif /* _ASM_MACH_IP28_SPACES_H */
diff --git a/include/asm-mips/mach-ip28/war.h b/include/asm-mips/mach-ip28/war.h
new file mode 100644
index 000000000000..a1baafab486a
--- /dev/null
+++ b/include/asm-mips/mach-ip28/war.h
@@ -0,0 +1,25 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2002, 2004, 2007 by Ralf Baechle <ralf@linux-mips.org>
+ */
+#ifndef __ASM_MIPS_MACH_IP28_WAR_H
+#define __ASM_MIPS_MACH_IP28_WAR_H
+
+#define R4600_V1_INDEX_ICACHEOP_WAR	0
+#define R4600_V1_HIT_CACHEOP_WAR	0
+#define R4600_V2_HIT_CACHEOP_WAR	0
+#define R5432_CP0_INTERRUPT_WAR		0
+#define BCM1250_M3_WAR			0
+#define SIBYTE_1956_WAR			0
+#define MIPS4K_ICACHE_REFILL_WAR	0
+#define MIPS_CACHE_SYNC_WAR		0
+#define TX49XX_ICACHE_INDEX_INV_WAR	0
+#define RM9000_CDEX_SMP_WAR		0
+#define ICACHE_REFILLS_WORKAROUND_WAR	0
+#define R10000_LLSC_WAR			1
+#define MIPS34K_MISSED_ITLB_WAR		0
+
+#endif /* __ASM_MIPS_MACH_IP28_WAR_H */
-- 
cgit v1.2.3-59-g8ed1b


From 07c019bcccbfb7ca148494444442a3c48880729a Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:14:59 +0000
Subject: [MIPS] BCM1480: Use constants instead of magic numbers in PCI code.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/pci/pci-bcm1480.c   | 4 ++--
 arch/mips/pci/pci-bcm1480ht.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/pci/pci-bcm1480.c b/arch/mips/pci/pci-bcm1480.c
index 47f316c86ab1..30ed36125bcd 100644
--- a/arch/mips/pci/pci-bcm1480.c
+++ b/arch/mips/pci/pci-bcm1480.c
@@ -178,8 +178,8 @@ struct pci_ops bcm1480_pci_ops = {
 
 static struct resource bcm1480_mem_resource = {
 	.name	= "BCM1480 PCI MEM",
-	.start	= 0x30000000UL,
-	.end	= 0x3fffffffUL,
+	.start	= A_BCM1480_PHYS_PCI_MEM_MATCH_BYTES,
+	.end	= A_BCM1480_PHYS_PCI_MEM_MATCH_BYTES + 0xfffffffUL,
 	.flags	= IORESOURCE_MEM,
 };
 
diff --git a/arch/mips/pci/pci-bcm1480ht.c b/arch/mips/pci/pci-bcm1480ht.c
index a63e3bd6b0ac..005e7fecab08 100644
--- a/arch/mips/pci/pci-bcm1480ht.c
+++ b/arch/mips/pci/pci-bcm1480ht.c
@@ -173,8 +173,8 @@ struct pci_ops bcm1480ht_pci_ops = {
 
 static struct resource bcm1480ht_mem_resource = {
 	.name	= "BCM1480 HT MEM",
-	.start	= 0x40000000UL,
-	.end	= 0x5fffffffUL,
+	.start	= A_BCM1480_PHYS_HT_MEM_MATCH_BYTES,
+	.end	= A_BCM1480_PHYS_HT_MEM_MATCH_BYTES + 0x1fffffffUL,
 	.flags	= IORESOURCE_MEM,
 };
 
-- 
cgit v1.2.3-59-g8ed1b


From f21d8508080f05a8b05c99fce57cd76ac43666fa Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:14:59 +0000
Subject: [MIPS] Fulong: don't reinitialize pci_probe_only to it's default
 value.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/lemote/lm2e/pci.c | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/lemote/lm2e/pci.c b/arch/mips/lemote/lm2e/pci.c
index 1ade1cef3899..c1e41f15cc7e 100644
--- a/arch/mips/lemote/lm2e/pci.c
+++ b/arch/mips/lemote/lm2e/pci.c
@@ -81,9 +81,6 @@ static void __init ict_pcimap(void)
 
 static int __init pcibios_init(void)
 {
-	extern int pci_probe_only;
-	pci_probe_only = 0;
-
 	ict_pcimap();
 	register_pci_controller(&loongson2e_pci_controller);
 
-- 
cgit v1.2.3-59-g8ed1b


From c5ec1983e45d25446a023e98207e30ab1bf2311a Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:14:59 +0000
Subject: [MIPS] Eleminate local symbols from the symbol table.

These symbols appear in oprofile output, stacktraces and similar but only
make the output harder to read.  Many identical symbol names such as
"both_aligned" were also being used in multiple source files making it
impossible to see which file actually was meant.  So let's get rid of them.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/lib/csum_partial.S    | 214 ++++++++++++++++++++--------------------
 arch/mips/lib/memcpy-inatomic.S | 116 +++++++++++-----------
 arch/mips/lib/memcpy.S          | 182 +++++++++++++++++-----------------
 arch/mips/lib/memset.S          |  28 +++---
 arch/mips/lib/strlen_user.S     |   6 +-
 arch/mips/lib/strncpy_user.S    |  10 +-
 arch/mips/lib/strnlen_user.S    |   7 +-
 7 files changed, 282 insertions(+), 281 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/lib/csum_partial.S b/arch/mips/lib/csum_partial.S
index 957a82484e3e..8d7784122c14 100644
--- a/arch/mips/lib/csum_partial.S
+++ b/arch/mips/lib/csum_partial.S
@@ -96,13 +96,13 @@ LEAF(csum_partial)
 	move	t7, zero
 
 	sltiu	t8, a1, 0x8
-	bnez	t8, small_csumcpy		/* < 8 bytes to copy */
+	bnez	t8, .Lsmall_csumcpy		/* < 8 bytes to copy */
 	 move	t2, a1
 
 	andi	t7, src, 0x1			/* odd buffer? */
 
-hword_align:
-	beqz	t7, word_align
+.Lhword_align:
+	beqz	t7, .Lword_align
 	 andi	t8, src, 0x2
 
 	lbu	t0, (src)
@@ -114,8 +114,8 @@ hword_align:
 	PTR_ADDU	src, src, 0x1
 	andi	t8, src, 0x2
 
-word_align:
-	beqz	t8, dword_align
+.Lword_align:
+	beqz	t8, .Ldword_align
 	 sltiu	t8, a1, 56
 
 	lhu	t0, (src)
@@ -124,12 +124,12 @@ word_align:
 	sltiu	t8, a1, 56
 	PTR_ADDU	src, src, 0x2
 
-dword_align:
-	bnez	t8, do_end_words
+.Ldword_align:
+	bnez	t8, .Ldo_end_words
 	 move	t8, a1
 
 	andi	t8, src, 0x4
-	beqz	t8, qword_align
+	beqz	t8, .Lqword_align
 	 andi	t8, src, 0x8
 
 	lw	t0, 0x00(src)
@@ -138,8 +138,8 @@ dword_align:
 	PTR_ADDU	src, src, 0x4
 	andi	t8, src, 0x8
 
-qword_align:
-	beqz	t8, oword_align
+.Lqword_align:
+	beqz	t8, .Loword_align
 	 andi	t8, src, 0x10
 
 #ifdef USE_DOUBLE
@@ -156,8 +156,8 @@ qword_align:
 	PTR_ADDU	src, src, 0x8
 	andi	t8, src, 0x10
 
-oword_align:
-	beqz	t8, begin_movement
+.Loword_align:
+	beqz	t8, .Lbegin_movement
 	 LONG_SRL	t8, a1, 0x7
 
 #ifdef USE_DOUBLE
@@ -172,11 +172,11 @@ oword_align:
 	PTR_ADDU	src, src, 0x10
 	LONG_SRL	t8, a1, 0x7
 
-begin_movement:
+.Lbegin_movement:
 	beqz	t8, 1f
 	 andi	t2, a1, 0x40
 
-move_128bytes:
+.Lmove_128bytes:
 	CSUM_BIGCHUNK(src, 0x00, sum, t0, t1, t3, t4)
 	CSUM_BIGCHUNK(src, 0x20, sum, t0, t1, t3, t4)
 	CSUM_BIGCHUNK(src, 0x40, sum, t0, t1, t3, t4)
@@ -184,43 +184,43 @@ move_128bytes:
 	LONG_SUBU	t8, t8, 0x01
 	.set	reorder				/* DADDI_WAR */
 	PTR_ADDU	src, src, 0x80
-	bnez	t8, move_128bytes
+	bnez	t8, .Lmove_128bytes
 	.set	noreorder
 
 1:
 	beqz	t2, 1f
 	 andi	t2, a1, 0x20
 
-move_64bytes:
+.Lmove_64bytes:
 	CSUM_BIGCHUNK(src, 0x00, sum, t0, t1, t3, t4)
 	CSUM_BIGCHUNK(src, 0x20, sum, t0, t1, t3, t4)
 	PTR_ADDU	src, src, 0x40
 
 1:
-	beqz	t2, do_end_words
+	beqz	t2, .Ldo_end_words
 	 andi	t8, a1, 0x1c
 
-move_32bytes:
+.Lmove_32bytes:
 	CSUM_BIGCHUNK(src, 0x00, sum, t0, t1, t3, t4)
 	andi	t8, a1, 0x1c
 	PTR_ADDU	src, src, 0x20
 
-do_end_words:
-	beqz	t8, small_csumcpy
+.Ldo_end_words:
+	beqz	t8, .Lsmall_csumcpy
 	 andi	t2, a1, 0x3
 	LONG_SRL	t8, t8, 0x2
 
-end_words:
+.Lend_words:
 	lw	t0, (src)
 	LONG_SUBU	t8, t8, 0x1
 	ADDC(sum, t0)
 	.set	reorder				/* DADDI_WAR */
 	PTR_ADDU	src, src, 0x4
-	bnez	t8, end_words
+	bnez	t8, .Lend_words
 	.set	noreorder
 
 /* unknown src alignment and < 8 bytes to go  */
-small_csumcpy:
+.Lsmall_csumcpy:
 	move	a1, t2
 
 	andi	t0, a1, 4
@@ -413,48 +413,48 @@ FEXPORT(csum_partial_copy_nocheck)
 	 */
 	sltu	t2, len, NBYTES
 	and	t1, dst, ADDRMASK
-	bnez	t2, copy_bytes_checklen
+	bnez	t2, .Lcopy_bytes_checklen
 	 and	t0, src, ADDRMASK
 	andi	odd, dst, 0x1			/* odd buffer? */
-	bnez	t1, dst_unaligned
+	bnez	t1, .Ldst_unaligned
 	 nop
-	bnez	t0, src_unaligned_dst_aligned
+	bnez	t0, .Lsrc_unaligned_dst_aligned
 	/*
 	 * use delay slot for fall-through
 	 * src and dst are aligned; need to compute rem
 	 */
-both_aligned:
+.Lboth_aligned:
 	 SRL	t0, len, LOG_NBYTES+3    # +3 for 8 units/iter
-	beqz	t0, cleanup_both_aligned # len < 8*NBYTES
+	beqz	t0, .Lcleanup_both_aligned # len < 8*NBYTES
 	 nop
 	SUB	len, 8*NBYTES		# subtract here for bgez loop
 	.align	4
 1:
-EXC(	LOAD	t0, UNIT(0)(src),	l_exc)
-EXC(	LOAD	t1, UNIT(1)(src),	l_exc_copy)
-EXC(	LOAD	t2, UNIT(2)(src),	l_exc_copy)
-EXC(	LOAD	t3, UNIT(3)(src),	l_exc_copy)
-EXC(	LOAD	t4, UNIT(4)(src),	l_exc_copy)
-EXC(	LOAD	t5, UNIT(5)(src),	l_exc_copy)
-EXC(	LOAD	t6, UNIT(6)(src),	l_exc_copy)
-EXC(	LOAD	t7, UNIT(7)(src),	l_exc_copy)
+EXC(	LOAD	t0, UNIT(0)(src),	.Ll_exc)
+EXC(	LOAD	t1, UNIT(1)(src),	.Ll_exc_copy)
+EXC(	LOAD	t2, UNIT(2)(src),	.Ll_exc_copy)
+EXC(	LOAD	t3, UNIT(3)(src),	.Ll_exc_copy)
+EXC(	LOAD	t4, UNIT(4)(src),	.Ll_exc_copy)
+EXC(	LOAD	t5, UNIT(5)(src),	.Ll_exc_copy)
+EXC(	LOAD	t6, UNIT(6)(src),	.Ll_exc_copy)
+EXC(	LOAD	t7, UNIT(7)(src),	.Ll_exc_copy)
 	SUB	len, len, 8*NBYTES
 	ADD	src, src, 8*NBYTES
-EXC(	STORE	t0, UNIT(0)(dst),	s_exc)
+EXC(	STORE	t0, UNIT(0)(dst),	.Ls_exc)
 	ADDC(sum, t0)
-EXC(	STORE	t1, UNIT(1)(dst),	s_exc)
+EXC(	STORE	t1, UNIT(1)(dst),	.Ls_exc)
 	ADDC(sum, t1)
-EXC(	STORE	t2, UNIT(2)(dst),	s_exc)
+EXC(	STORE	t2, UNIT(2)(dst),	.Ls_exc)
 	ADDC(sum, t2)
-EXC(	STORE	t3, UNIT(3)(dst),	s_exc)
+EXC(	STORE	t3, UNIT(3)(dst),	.Ls_exc)
 	ADDC(sum, t3)
-EXC(	STORE	t4, UNIT(4)(dst),	s_exc)
+EXC(	STORE	t4, UNIT(4)(dst),	.Ls_exc)
 	ADDC(sum, t4)
-EXC(	STORE	t5, UNIT(5)(dst),	s_exc)
+EXC(	STORE	t5, UNIT(5)(dst),	.Ls_exc)
 	ADDC(sum, t5)
-EXC(	STORE	t6, UNIT(6)(dst),	s_exc)
+EXC(	STORE	t6, UNIT(6)(dst),	.Ls_exc)
 	ADDC(sum, t6)
-EXC(	STORE	t7, UNIT(7)(dst),	s_exc)
+EXC(	STORE	t7, UNIT(7)(dst),	.Ls_exc)
 	ADDC(sum, t7)
 	.set	reorder				/* DADDI_WAR */
 	ADD	dst, dst, 8*NBYTES
@@ -465,44 +465,44 @@ EXC(	STORE	t7, UNIT(7)(dst),	s_exc)
 	/*
 	 * len == the number of bytes left to copy < 8*NBYTES
 	 */
-cleanup_both_aligned:
+.Lcleanup_both_aligned:
 #define rem t7
-	beqz	len, done
+	beqz	len, .Ldone
 	 sltu	t0, len, 4*NBYTES
-	bnez	t0, less_than_4units
+	bnez	t0, .Lless_than_4units
 	 and	rem, len, (NBYTES-1)	# rem = len % NBYTES
 	/*
 	 * len >= 4*NBYTES
 	 */
-EXC(	LOAD	t0, UNIT(0)(src),	l_exc)
-EXC(	LOAD	t1, UNIT(1)(src),	l_exc_copy)
-EXC(	LOAD	t2, UNIT(2)(src),	l_exc_copy)
-EXC(	LOAD	t3, UNIT(3)(src),	l_exc_copy)
+EXC(	LOAD	t0, UNIT(0)(src),	.Ll_exc)
+EXC(	LOAD	t1, UNIT(1)(src),	.Ll_exc_copy)
+EXC(	LOAD	t2, UNIT(2)(src),	.Ll_exc_copy)
+EXC(	LOAD	t3, UNIT(3)(src),	.Ll_exc_copy)
 	SUB	len, len, 4*NBYTES
 	ADD	src, src, 4*NBYTES
-EXC(	STORE	t0, UNIT(0)(dst),	s_exc)
+EXC(	STORE	t0, UNIT(0)(dst),	.Ls_exc)
 	ADDC(sum, t0)
-EXC(	STORE	t1, UNIT(1)(dst),	s_exc)
+EXC(	STORE	t1, UNIT(1)(dst),	.Ls_exc)
 	ADDC(sum, t1)
-EXC(	STORE	t2, UNIT(2)(dst),	s_exc)
+EXC(	STORE	t2, UNIT(2)(dst),	.Ls_exc)
 	ADDC(sum, t2)
-EXC(	STORE	t3, UNIT(3)(dst),	s_exc)
+EXC(	STORE	t3, UNIT(3)(dst),	.Ls_exc)
 	ADDC(sum, t3)
 	.set	reorder				/* DADDI_WAR */
 	ADD	dst, dst, 4*NBYTES
-	beqz	len, done
+	beqz	len, .Ldone
 	.set	noreorder
-less_than_4units:
+.Lless_than_4units:
 	/*
 	 * rem = len % NBYTES
 	 */
-	beq	rem, len, copy_bytes
+	beq	rem, len, .Lcopy_bytes
 	 nop
 1:
-EXC(	LOAD	t0, 0(src),		l_exc)
+EXC(	LOAD	t0, 0(src),		.Ll_exc)
 	ADD	src, src, NBYTES
 	SUB	len, len, NBYTES
-EXC(	STORE	t0, 0(dst),		s_exc)
+EXC(	STORE	t0, 0(dst),		.Ls_exc)
 	ADDC(sum, t0)
 	.set	reorder				/* DADDI_WAR */
 	ADD	dst, dst, NBYTES
@@ -521,20 +521,20 @@ EXC(	STORE	t0, 0(dst),		s_exc)
 	 * more instruction-level parallelism.
 	 */
 #define bits t2
-	beqz	len, done
+	beqz	len, .Ldone
 	 ADD	t1, dst, len	# t1 is just past last byte of dst
 	li	bits, 8*NBYTES
 	SLL	rem, len, 3	# rem = number of bits to keep
-EXC(	LOAD	t0, 0(src),		l_exc)
+EXC(	LOAD	t0, 0(src),		.Ll_exc)
 	SUB	bits, bits, rem	# bits = number of bits to discard
 	SHIFT_DISCARD t0, t0, bits
-EXC(	STREST	t0, -1(t1),		s_exc)
+EXC(	STREST	t0, -1(t1),		.Ls_exc)
 	SHIFT_DISCARD_REVERT t0, t0, bits
 	.set reorder
 	ADDC(sum, t0)
-	b	done
+	b	.Ldone
 	.set noreorder
-dst_unaligned:
+.Ldst_unaligned:
 	/*
 	 * dst is unaligned
 	 * t0 = src & ADDRMASK
@@ -545,25 +545,25 @@ dst_unaligned:
 	 * Set match = (src and dst have same alignment)
 	 */
 #define match rem
-EXC(	LDFIRST	t3, FIRST(0)(src),	l_exc)
+EXC(	LDFIRST	t3, FIRST(0)(src),	.Ll_exc)
 	ADD	t2, zero, NBYTES
-EXC(	LDREST	t3, REST(0)(src),	l_exc_copy)
+EXC(	LDREST	t3, REST(0)(src),	.Ll_exc_copy)
 	SUB	t2, t2, t1	# t2 = number of bytes copied
 	xor	match, t0, t1
-EXC(	STFIRST t3, FIRST(0)(dst),	s_exc)
+EXC(	STFIRST t3, FIRST(0)(dst),	.Ls_exc)
 	SLL	t4, t1, 3		# t4 = number of bits to discard
 	SHIFT_DISCARD t3, t3, t4
 	/* no SHIFT_DISCARD_REVERT to handle odd buffer properly */
 	ADDC(sum, t3)
-	beq	len, t2, done
+	beq	len, t2, .Ldone
 	 SUB	len, len, t2
 	ADD	dst, dst, t2
-	beqz	match, both_aligned
+	beqz	match, .Lboth_aligned
 	 ADD	src, src, t2
 
-src_unaligned_dst_aligned:
+.Lsrc_unaligned_dst_aligned:
 	SRL	t0, len, LOG_NBYTES+2    # +2 for 4 units/iter
-	beqz	t0, cleanup_src_unaligned
+	beqz	t0, .Lcleanup_src_unaligned
 	 and	rem, len, (4*NBYTES-1)   # rem = len % 4*NBYTES
 1:
 /*
@@ -572,53 +572,53 @@ src_unaligned_dst_aligned:
  * It's OK to load FIRST(N+1) before REST(N) because the two addresses
  * are to the same unit (unless src is aligned, but it's not).
  */
-EXC(	LDFIRST	t0, FIRST(0)(src),	l_exc)
-EXC(	LDFIRST	t1, FIRST(1)(src),	l_exc_copy)
+EXC(	LDFIRST	t0, FIRST(0)(src),	.Ll_exc)
+EXC(	LDFIRST	t1, FIRST(1)(src),	.Ll_exc_copy)
 	SUB     len, len, 4*NBYTES
-EXC(	LDREST	t0, REST(0)(src),	l_exc_copy)
-EXC(	LDREST	t1, REST(1)(src),	l_exc_copy)
-EXC(	LDFIRST	t2, FIRST(2)(src),	l_exc_copy)
-EXC(	LDFIRST	t3, FIRST(3)(src),	l_exc_copy)
-EXC(	LDREST	t2, REST(2)(src),	l_exc_copy)
-EXC(	LDREST	t3, REST(3)(src),	l_exc_copy)
+EXC(	LDREST	t0, REST(0)(src),	.Ll_exc_copy)
+EXC(	LDREST	t1, REST(1)(src),	.Ll_exc_copy)
+EXC(	LDFIRST	t2, FIRST(2)(src),	.Ll_exc_copy)
+EXC(	LDFIRST	t3, FIRST(3)(src),	.Ll_exc_copy)
+EXC(	LDREST	t2, REST(2)(src),	.Ll_exc_copy)
+EXC(	LDREST	t3, REST(3)(src),	.Ll_exc_copy)
 	ADD	src, src, 4*NBYTES
 #ifdef CONFIG_CPU_SB1
 	nop				# improves slotting
 #endif
-EXC(	STORE	t0, UNIT(0)(dst),	s_exc)
+EXC(	STORE	t0, UNIT(0)(dst),	.Ls_exc)
 	ADDC(sum, t0)
-EXC(	STORE	t1, UNIT(1)(dst),	s_exc)
+EXC(	STORE	t1, UNIT(1)(dst),	.Ls_exc)
 	ADDC(sum, t1)
-EXC(	STORE	t2, UNIT(2)(dst),	s_exc)
+EXC(	STORE	t2, UNIT(2)(dst),	.Ls_exc)
 	ADDC(sum, t2)
-EXC(	STORE	t3, UNIT(3)(dst),	s_exc)
+EXC(	STORE	t3, UNIT(3)(dst),	.Ls_exc)
 	ADDC(sum, t3)
 	.set	reorder				/* DADDI_WAR */
 	ADD	dst, dst, 4*NBYTES
 	bne	len, rem, 1b
 	.set	noreorder
 
-cleanup_src_unaligned:
-	beqz	len, done
+.Lcleanup_src_unaligned:
+	beqz	len, .Ldone
 	 and	rem, len, NBYTES-1  # rem = len % NBYTES
-	beq	rem, len, copy_bytes
+	beq	rem, len, .Lcopy_bytes
 	 nop
 1:
-EXC(	LDFIRST t0, FIRST(0)(src),	l_exc)
-EXC(	LDREST	t0, REST(0)(src),	l_exc_copy)
+EXC(	LDFIRST t0, FIRST(0)(src),	.Ll_exc)
+EXC(	LDREST	t0, REST(0)(src),	.Ll_exc_copy)
 	ADD	src, src, NBYTES
 	SUB	len, len, NBYTES
-EXC(	STORE	t0, 0(dst),		s_exc)
+EXC(	STORE	t0, 0(dst),		.Ls_exc)
 	ADDC(sum, t0)
 	.set	reorder				/* DADDI_WAR */
 	ADD	dst, dst, NBYTES
 	bne	len, rem, 1b
 	.set	noreorder
 
-copy_bytes_checklen:
-	beqz	len, done
+.Lcopy_bytes_checklen:
+	beqz	len, .Ldone
 	 nop
-copy_bytes:
+.Lcopy_bytes:
 	/* 0 < len < NBYTES  */
 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 #define SHIFT_START 0
@@ -629,14 +629,14 @@ copy_bytes:
 #endif
 	move	t2, zero	# partial word
 	li	t3, SHIFT_START	# shift
-/* use l_exc_copy here to return correct sum on fault */
+/* use .Ll_exc_copy here to return correct sum on fault */
 #define COPY_BYTE(N)			\
-EXC(	lbu	t0, N(src), l_exc_copy);	\
+EXC(	lbu	t0, N(src), .Ll_exc_copy);	\
 	SUB	len, len, 1;		\
-EXC(	sb	t0, N(dst), s_exc);	\
+EXC(	sb	t0, N(dst), .Ls_exc);	\
 	SLLV	t0, t0, t3;		\
 	addu	t3, SHIFT_INC;		\
-	beqz	len, copy_bytes_done;	\
+	beqz	len, .Lcopy_bytes_done;	\
 	 or	t2, t0
 
 	COPY_BYTE(0)
@@ -647,14 +647,14 @@ EXC(	sb	t0, N(dst), s_exc);	\
 	COPY_BYTE(4)
 	COPY_BYTE(5)
 #endif
-EXC(	lbu	t0, NBYTES-2(src), l_exc_copy)
+EXC(	lbu	t0, NBYTES-2(src), .Ll_exc_copy)
 	SUB	len, len, 1
-EXC(	sb	t0, NBYTES-2(dst), s_exc)
+EXC(	sb	t0, NBYTES-2(dst), .Ls_exc)
 	SLLV	t0, t0, t3
 	or	t2, t0
-copy_bytes_done:
+.Lcopy_bytes_done:
 	ADDC(sum, t2)
-done:
+.Ldone:
 	/* fold checksum */
 	.set	push
 	.set	noat
@@ -685,7 +685,7 @@ done:
 	jr	ra
 	.set noreorder
 
-l_exc_copy:
+.Ll_exc_copy:
 	/*
 	 * Copy bytes from src until faulting load address (or until a
 	 * lb faults)
@@ -700,7 +700,7 @@ l_exc_copy:
 	 li	t2, SHIFT_START
 	LOAD	t0, THREAD_BUADDR(t0)
 1:
-EXC(	lbu	t1, 0(src),	l_exc)
+EXC(	lbu	t1, 0(src),	.Ll_exc)
 	ADD	src, src, 1
 	sb	t1, 0(dst)	# can't fault -- we're copy_from_user
 	SLLV	t1, t1, t2
@@ -710,7 +710,7 @@ EXC(	lbu	t1, 0(src),	l_exc)
 	ADD	dst, dst, 1
 	bne	src, t0, 1b
 	.set	noreorder
-l_exc:
+.Ll_exc:
 	LOAD	t0, TI_TASK($28)
 	 nop
 	LOAD	t0, THREAD_BUADDR(t0)	# t0 is just past last good address
@@ -729,7 +729,7 @@ l_exc:
 	 */
 	.set	reorder				/* DADDI_WAR */
 	SUB	src, len, 1
-	beqz	len, done
+	beqz	len, .Ldone
 	.set	noreorder
 1:	sb	zero, 0(dst)
 	ADD	dst, dst, 1
@@ -744,10 +744,10 @@ l_exc:
 	 SUB	src, src, v1
 #endif
 	li	v1, -EFAULT
-	b	done
+	b	.Ldone
 	 sw	v1, (errptr)
 
-s_exc:
+.Ls_exc:
 	li	v0, -1 /* invalid checksum */
 	li	v1, -EFAULT
 	jr	ra
diff --git a/arch/mips/lib/memcpy-inatomic.S b/arch/mips/lib/memcpy-inatomic.S
index d1b08f5d6860..736d0fb56a94 100644
--- a/arch/mips/lib/memcpy-inatomic.S
+++ b/arch/mips/lib/memcpy-inatomic.S
@@ -209,36 +209,36 @@ LEAF(__copy_user_inatomic)
 	and	t1, dst, ADDRMASK
 	PREF(	0, 1*32(src) )
 	PREF(	1, 1*32(dst) )
-	bnez	t2, copy_bytes_checklen
+	bnez	t2, .Lcopy_bytes_checklen
 	 and	t0, src, ADDRMASK
 	PREF(	0, 2*32(src) )
 	PREF(	1, 2*32(dst) )
-	bnez	t1, dst_unaligned
+	bnez	t1, .Ldst_unaligned
 	 nop
-	bnez	t0, src_unaligned_dst_aligned
+	bnez	t0, .Lsrc_unaligned_dst_aligned
 	/*
 	 * use delay slot for fall-through
 	 * src and dst are aligned; need to compute rem
 	 */
-both_aligned:
-	 SRL	t0, len, LOG_NBYTES+3    # +3 for 8 units/iter
-	beqz	t0, cleanup_both_aligned # len < 8*NBYTES
-	 and	rem, len, (8*NBYTES-1)	 # rem = len % (8*NBYTES)
+.Lboth_aligned:
+	 SRL	t0, len, LOG_NBYTES+3    	# +3 for 8 units/iter
+	beqz	t0, .Lcleanup_both_aligned	# len < 8*NBYTES
+	 and	rem, len, (8*NBYTES-1)	 	# rem = len % (8*NBYTES)
 	PREF(	0, 3*32(src) )
 	PREF(	1, 3*32(dst) )
 	.align	4
 1:
-EXC(	LOAD	t0, UNIT(0)(src),	l_exc)
-EXC(	LOAD	t1, UNIT(1)(src),	l_exc_copy)
-EXC(	LOAD	t2, UNIT(2)(src),	l_exc_copy)
-EXC(	LOAD	t3, UNIT(3)(src),	l_exc_copy)
+EXC(	LOAD	t0, UNIT(0)(src),	.Ll_exc)
+EXC(	LOAD	t1, UNIT(1)(src),	.Ll_exc_copy)
+EXC(	LOAD	t2, UNIT(2)(src),	.Ll_exc_copy)
+EXC(	LOAD	t3, UNIT(3)(src),	.Ll_exc_copy)
 	SUB	len, len, 8*NBYTES
-EXC(	LOAD	t4, UNIT(4)(src),	l_exc_copy)
-EXC(	LOAD	t7, UNIT(5)(src),	l_exc_copy)
+EXC(	LOAD	t4, UNIT(4)(src),	.Ll_exc_copy)
+EXC(	LOAD	t7, UNIT(5)(src),	.Ll_exc_copy)
 	STORE	t0, UNIT(0)(dst)
 	STORE	t1, UNIT(1)(dst)
-EXC(	LOAD	t0, UNIT(6)(src),	l_exc_copy)
-EXC(	LOAD	t1, UNIT(7)(src),	l_exc_copy)
+EXC(	LOAD	t0, UNIT(6)(src),	.Ll_exc_copy)
+EXC(	LOAD	t1, UNIT(7)(src),	.Ll_exc_copy)
 	ADD	src, src, 8*NBYTES
 	ADD	dst, dst, 8*NBYTES
 	STORE	t2, UNIT(-6)(dst)
@@ -255,18 +255,18 @@ EXC(	LOAD	t1, UNIT(7)(src),	l_exc_copy)
 	/*
 	 * len == rem == the number of bytes left to copy < 8*NBYTES
 	 */
-cleanup_both_aligned:
-	beqz	len, done
+.Lcleanup_both_aligned:
+	beqz	len, .Ldone
 	 sltu	t0, len, 4*NBYTES
-	bnez	t0, less_than_4units
+	bnez	t0, .Lless_than_4units
 	 and	rem, len, (NBYTES-1)	# rem = len % NBYTES
 	/*
 	 * len >= 4*NBYTES
 	 */
-EXC(	LOAD	t0, UNIT(0)(src),	l_exc)
-EXC(	LOAD	t1, UNIT(1)(src),	l_exc_copy)
-EXC(	LOAD	t2, UNIT(2)(src),	l_exc_copy)
-EXC(	LOAD	t3, UNIT(3)(src),	l_exc_copy)
+EXC(	LOAD	t0, UNIT(0)(src),	.Ll_exc)
+EXC(	LOAD	t1, UNIT(1)(src),	.Ll_exc_copy)
+EXC(	LOAD	t2, UNIT(2)(src),	.Ll_exc_copy)
+EXC(	LOAD	t3, UNIT(3)(src),	.Ll_exc_copy)
 	SUB	len, len, 4*NBYTES
 	ADD	src, src, 4*NBYTES
 	STORE	t0, UNIT(0)(dst)
@@ -275,16 +275,16 @@ EXC(	LOAD	t3, UNIT(3)(src),	l_exc_copy)
 	STORE	t3, UNIT(3)(dst)
 	.set	reorder				/* DADDI_WAR */
 	ADD	dst, dst, 4*NBYTES
-	beqz	len, done
+	beqz	len, .Ldone
 	.set	noreorder
-less_than_4units:
+.Lless_than_4units:
 	/*
 	 * rem = len % NBYTES
 	 */
-	beq	rem, len, copy_bytes
+	beq	rem, len, .Lcopy_bytes
 	 nop
 1:
-EXC(	LOAD	t0, 0(src),		l_exc)
+EXC(	LOAD	t0, 0(src),		.Ll_exc)
 	ADD	src, src, NBYTES
 	SUB	len, len, NBYTES
 	STORE	t0, 0(dst)
@@ -305,17 +305,17 @@ EXC(	LOAD	t0, 0(src),		l_exc)
 	 * more instruction-level parallelism.
 	 */
 #define bits t2
-	beqz	len, done
+	beqz	len, .Ldone
 	 ADD	t1, dst, len	# t1 is just past last byte of dst
 	li	bits, 8*NBYTES
 	SLL	rem, len, 3	# rem = number of bits to keep
-EXC(	LOAD	t0, 0(src),		l_exc)
+EXC(	LOAD	t0, 0(src),		.Ll_exc)
 	SUB	bits, bits, rem	# bits = number of bits to discard
 	SHIFT_DISCARD t0, t0, bits
 	STREST	t0, -1(t1)
 	jr	ra
 	 move	len, zero
-dst_unaligned:
+.Ldst_unaligned:
 	/*
 	 * dst is unaligned
 	 * t0 = src & ADDRMASK
@@ -326,22 +326,22 @@ dst_unaligned:
 	 * Set match = (src and dst have same alignment)
 	 */
 #define match rem
-EXC(	LDFIRST	t3, FIRST(0)(src),	l_exc)
+EXC(	LDFIRST	t3, FIRST(0)(src),	.Ll_exc)
 	ADD	t2, zero, NBYTES
-EXC(	LDREST	t3, REST(0)(src),	l_exc_copy)
+EXC(	LDREST	t3, REST(0)(src),	.Ll_exc_copy)
 	SUB	t2, t2, t1	# t2 = number of bytes copied
 	xor	match, t0, t1
 	STFIRST t3, FIRST(0)(dst)
-	beq	len, t2, done
+	beq	len, t2, .Ldone
 	 SUB	len, len, t2
 	ADD	dst, dst, t2
-	beqz	match, both_aligned
+	beqz	match, .Lboth_aligned
 	 ADD	src, src, t2
 
-src_unaligned_dst_aligned:
+.Lsrc_unaligned_dst_aligned:
 	SRL	t0, len, LOG_NBYTES+2    # +2 for 4 units/iter
 	PREF(	0, 3*32(src) )
-	beqz	t0, cleanup_src_unaligned
+	beqz	t0, .Lcleanup_src_unaligned
 	 and	rem, len, (4*NBYTES-1)   # rem = len % 4*NBYTES
 	PREF(	1, 3*32(dst) )
 1:
@@ -351,15 +351,15 @@ src_unaligned_dst_aligned:
  * It's OK to load FIRST(N+1) before REST(N) because the two addresses
  * are to the same unit (unless src is aligned, but it's not).
  */
-EXC(	LDFIRST	t0, FIRST(0)(src),	l_exc)
-EXC(	LDFIRST	t1, FIRST(1)(src),	l_exc_copy)
+EXC(	LDFIRST	t0, FIRST(0)(src),	.Ll_exc)
+EXC(	LDFIRST	t1, FIRST(1)(src),	.Ll_exc_copy)
 	SUB     len, len, 4*NBYTES
-EXC(	LDREST	t0, REST(0)(src),	l_exc_copy)
-EXC(	LDREST	t1, REST(1)(src),	l_exc_copy)
-EXC(	LDFIRST	t2, FIRST(2)(src),	l_exc_copy)
-EXC(	LDFIRST	t3, FIRST(3)(src),	l_exc_copy)
-EXC(	LDREST	t2, REST(2)(src),	l_exc_copy)
-EXC(	LDREST	t3, REST(3)(src),	l_exc_copy)
+EXC(	LDREST	t0, REST(0)(src),	.Ll_exc_copy)
+EXC(	LDREST	t1, REST(1)(src),	.Ll_exc_copy)
+EXC(	LDFIRST	t2, FIRST(2)(src),	.Ll_exc_copy)
+EXC(	LDFIRST	t3, FIRST(3)(src),	.Ll_exc_copy)
+EXC(	LDREST	t2, REST(2)(src),	.Ll_exc_copy)
+EXC(	LDREST	t3, REST(3)(src),	.Ll_exc_copy)
 	PREF(	0, 9*32(src) )		# 0 is PREF_LOAD  (not streamed)
 	ADD	src, src, 4*NBYTES
 #ifdef CONFIG_CPU_SB1
@@ -375,14 +375,14 @@ EXC(	LDREST	t3, REST(3)(src),	l_exc_copy)
 	bne	len, rem, 1b
 	.set	noreorder
 
-cleanup_src_unaligned:
-	beqz	len, done
+.Lcleanup_src_unaligned:
+	beqz	len, .Ldone
 	 and	rem, len, NBYTES-1  # rem = len % NBYTES
-	beq	rem, len, copy_bytes
+	beq	rem, len, .Lcopy_bytes
 	 nop
 1:
-EXC(	LDFIRST t0, FIRST(0)(src),	l_exc)
-EXC(	LDREST	t0, REST(0)(src),	l_exc_copy)
+EXC(	LDFIRST t0, FIRST(0)(src),	.Ll_exc)
+EXC(	LDREST	t0, REST(0)(src),	.Ll_exc_copy)
 	ADD	src, src, NBYTES
 	SUB	len, len, NBYTES
 	STORE	t0, 0(dst)
@@ -391,15 +391,15 @@ EXC(	LDREST	t0, REST(0)(src),	l_exc_copy)
 	bne	len, rem, 1b
 	.set	noreorder
 
-copy_bytes_checklen:
-	beqz	len, done
+.Lcopy_bytes_checklen:
+	beqz	len, .Ldone
 	 nop
-copy_bytes:
+.Lcopy_bytes:
 	/* 0 < len < NBYTES  */
 #define COPY_BYTE(N)			\
-EXC(	lb	t0, N(src), l_exc);	\
+EXC(	lb	t0, N(src), .Ll_exc);	\
 	SUB	len, len, 1;		\
-	beqz	len, done;		\
+	beqz	len, .Ldone;		\
 	 sb	t0, N(dst)
 
 	COPY_BYTE(0)
@@ -410,16 +410,16 @@ EXC(	lb	t0, N(src), l_exc);	\
 	COPY_BYTE(4)
 	COPY_BYTE(5)
 #endif
-EXC(	lb	t0, NBYTES-2(src), l_exc)
+EXC(	lb	t0, NBYTES-2(src), .Ll_exc)
 	SUB	len, len, 1
 	jr	ra
 	 sb	t0, NBYTES-2(dst)
-done:
+.Ldone:
 	jr	ra
 	 nop
 	END(__copy_user_inatomic)
 
-l_exc_copy:
+.Ll_exc_copy:
 	/*
 	 * Copy bytes from src until faulting load address (or until a
 	 * lb faults)
@@ -434,14 +434,14 @@ l_exc_copy:
 	 nop
 	LOAD	t0, THREAD_BUADDR(t0)
 1:
-EXC(	lb	t1, 0(src),	l_exc)
+EXC(	lb	t1, 0(src),	.Ll_exc)
 	ADD	src, src, 1
 	sb	t1, 0(dst)	# can't fault -- we're copy_from_user
 	.set	reorder				/* DADDI_WAR */
 	ADD	dst, dst, 1
 	bne	src, t0, 1b
 	.set	noreorder
-l_exc:
+.Ll_exc:
 	LOAD	t0, TI_TASK($28)
 	 nop
 	LOAD	t0, THREAD_BUADDR(t0)	# t0 is just past last good address
diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S
index 01e450b1ebc9..c06cccf60bec 100644
--- a/arch/mips/lib/memcpy.S
+++ b/arch/mips/lib/memcpy.S
@@ -191,7 +191,7 @@
 	.align	5
 LEAF(memcpy)					/* a0=dst a1=src a2=len */
 	move	v0, dst				/* return value */
-__memcpy:
+.L__memcpy:
 FEXPORT(__copy_user)
 	/*
 	 * Note: dst & src may be unaligned, len may be 0
@@ -213,45 +213,45 @@ FEXPORT(__copy_user)
 	and	t1, dst, ADDRMASK
 	PREF(	0, 1*32(src) )
 	PREF(	1, 1*32(dst) )
-	bnez	t2, copy_bytes_checklen
+	bnez	t2, .Lcopy_bytes_checklen
 	 and	t0, src, ADDRMASK
 	PREF(	0, 2*32(src) )
 	PREF(	1, 2*32(dst) )
-	bnez	t1, dst_unaligned
+	bnez	t1, .Ldst_unaligned
 	 nop
-	bnez	t0, src_unaligned_dst_aligned
+	bnez	t0, .Lsrc_unaligned_dst_aligned
 	/*
 	 * use delay slot for fall-through
 	 * src and dst are aligned; need to compute rem
 	 */
-both_aligned:
+.Lboth_aligned:
 	 SRL	t0, len, LOG_NBYTES+3    # +3 for 8 units/iter
-	beqz	t0, cleanup_both_aligned # len < 8*NBYTES
+	beqz	t0, .Lcleanup_both_aligned # len < 8*NBYTES
 	 and	rem, len, (8*NBYTES-1)	 # rem = len % (8*NBYTES)
 	PREF(	0, 3*32(src) )
 	PREF(	1, 3*32(dst) )
 	.align	4
 1:
 	R10KCBARRIER(0(ra))
-EXC(	LOAD	t0, UNIT(0)(src),	l_exc)
-EXC(	LOAD	t1, UNIT(1)(src),	l_exc_copy)
-EXC(	LOAD	t2, UNIT(2)(src),	l_exc_copy)
-EXC(	LOAD	t3, UNIT(3)(src),	l_exc_copy)
+EXC(	LOAD	t0, UNIT(0)(src),	.Ll_exc)
+EXC(	LOAD	t1, UNIT(1)(src),	.Ll_exc_copy)
+EXC(	LOAD	t2, UNIT(2)(src),	.Ll_exc_copy)
+EXC(	LOAD	t3, UNIT(3)(src),	.Ll_exc_copy)
 	SUB	len, len, 8*NBYTES
-EXC(	LOAD	t4, UNIT(4)(src),	l_exc_copy)
-EXC(	LOAD	t7, UNIT(5)(src),	l_exc_copy)
-EXC(	STORE	t0, UNIT(0)(dst),	s_exc_p8u)
-EXC(	STORE	t1, UNIT(1)(dst),	s_exc_p7u)
-EXC(	LOAD	t0, UNIT(6)(src),	l_exc_copy)
-EXC(	LOAD	t1, UNIT(7)(src),	l_exc_copy)
+EXC(	LOAD	t4, UNIT(4)(src),	.Ll_exc_copy)
+EXC(	LOAD	t7, UNIT(5)(src),	.Ll_exc_copy)
+EXC(	STORE	t0, UNIT(0)(dst),	.Ls_exc_p8u)
+EXC(	STORE	t1, UNIT(1)(dst),	.Ls_exc_p7u)
+EXC(	LOAD	t0, UNIT(6)(src),	.Ll_exc_copy)
+EXC(	LOAD	t1, UNIT(7)(src),	.Ll_exc_copy)
 	ADD	src, src, 8*NBYTES
 	ADD	dst, dst, 8*NBYTES
-EXC(	STORE	t2, UNIT(-6)(dst),	s_exc_p6u)
-EXC(	STORE	t3, UNIT(-5)(dst),	s_exc_p5u)
-EXC(	STORE	t4, UNIT(-4)(dst),	s_exc_p4u)
-EXC(	STORE	t7, UNIT(-3)(dst),	s_exc_p3u)
-EXC(	STORE	t0, UNIT(-2)(dst),	s_exc_p2u)
-EXC(	STORE	t1, UNIT(-1)(dst),	s_exc_p1u)
+EXC(	STORE	t2, UNIT(-6)(dst),	.Ls_exc_p6u)
+EXC(	STORE	t3, UNIT(-5)(dst),	.Ls_exc_p5u)
+EXC(	STORE	t4, UNIT(-4)(dst),	.Ls_exc_p4u)
+EXC(	STORE	t7, UNIT(-3)(dst),	.Ls_exc_p3u)
+EXC(	STORE	t0, UNIT(-2)(dst),	.Ls_exc_p2u)
+EXC(	STORE	t1, UNIT(-1)(dst),	.Ls_exc_p1u)
 	PREF(	0, 8*32(src) )
 	PREF(	1, 8*32(dst) )
 	bne	len, rem, 1b
@@ -260,41 +260,41 @@ EXC(	STORE	t1, UNIT(-1)(dst),	s_exc_p1u)
 	/*
 	 * len == rem == the number of bytes left to copy < 8*NBYTES
 	 */
-cleanup_both_aligned:
-	beqz	len, done
+.Lcleanup_both_aligned:
+	beqz	len, .Ldone
 	 sltu	t0, len, 4*NBYTES
-	bnez	t0, less_than_4units
+	bnez	t0, .Lless_than_4units
 	 and	rem, len, (NBYTES-1)	# rem = len % NBYTES
 	/*
 	 * len >= 4*NBYTES
 	 */
-EXC(	LOAD	t0, UNIT(0)(src),	l_exc)
-EXC(	LOAD	t1, UNIT(1)(src),	l_exc_copy)
-EXC(	LOAD	t2, UNIT(2)(src),	l_exc_copy)
-EXC(	LOAD	t3, UNIT(3)(src),	l_exc_copy)
+EXC(	LOAD	t0, UNIT(0)(src),	.Ll_exc)
+EXC(	LOAD	t1, UNIT(1)(src),	.Ll_exc_copy)
+EXC(	LOAD	t2, UNIT(2)(src),	.Ll_exc_copy)
+EXC(	LOAD	t3, UNIT(3)(src),	.Ll_exc_copy)
 	SUB	len, len, 4*NBYTES
 	ADD	src, src, 4*NBYTES
 	R10KCBARRIER(0(ra))
-EXC(	STORE	t0, UNIT(0)(dst),	s_exc_p4u)
-EXC(	STORE	t1, UNIT(1)(dst),	s_exc_p3u)
-EXC(	STORE	t2, UNIT(2)(dst),	s_exc_p2u)
-EXC(	STORE	t3, UNIT(3)(dst),	s_exc_p1u)
+EXC(	STORE	t0, UNIT(0)(dst),	.Ls_exc_p4u)
+EXC(	STORE	t1, UNIT(1)(dst),	.Ls_exc_p3u)
+EXC(	STORE	t2, UNIT(2)(dst),	.Ls_exc_p2u)
+EXC(	STORE	t3, UNIT(3)(dst),	.Ls_exc_p1u)
 	.set	reorder				/* DADDI_WAR */
 	ADD	dst, dst, 4*NBYTES
-	beqz	len, done
+	beqz	len, .Ldone
 	.set	noreorder
-less_than_4units:
+.Lless_than_4units:
 	/*
 	 * rem = len % NBYTES
 	 */
-	beq	rem, len, copy_bytes
+	beq	rem, len, .Lcopy_bytes
 	 nop
 1:
 	R10KCBARRIER(0(ra))
-EXC(	LOAD	t0, 0(src),		l_exc)
+EXC(	LOAD	t0, 0(src),		.Ll_exc)
 	ADD	src, src, NBYTES
 	SUB	len, len, NBYTES
-EXC(	STORE	t0, 0(dst),		s_exc_p1u)
+EXC(	STORE	t0, 0(dst),		.Ls_exc_p1u)
 	.set	reorder				/* DADDI_WAR */
 	ADD	dst, dst, NBYTES
 	bne	rem, len, 1b
@@ -312,17 +312,17 @@ EXC(	STORE	t0, 0(dst),		s_exc_p1u)
 	 * more instruction-level parallelism.
 	 */
 #define bits t2
-	beqz	len, done
+	beqz	len, .Ldone
 	 ADD	t1, dst, len	# t1 is just past last byte of dst
 	li	bits, 8*NBYTES
 	SLL	rem, len, 3	# rem = number of bits to keep
-EXC(	LOAD	t0, 0(src),		l_exc)
+EXC(	LOAD	t0, 0(src),		.Ll_exc)
 	SUB	bits, bits, rem	# bits = number of bits to discard
 	SHIFT_DISCARD t0, t0, bits
-EXC(	STREST	t0, -1(t1),		s_exc)
+EXC(	STREST	t0, -1(t1),		.Ls_exc)
 	jr	ra
 	 move	len, zero
-dst_unaligned:
+.Ldst_unaligned:
 	/*
 	 * dst is unaligned
 	 * t0 = src & ADDRMASK
@@ -333,23 +333,23 @@ dst_unaligned:
 	 * Set match = (src and dst have same alignment)
 	 */
 #define match rem
-EXC(	LDFIRST	t3, FIRST(0)(src),	l_exc)
+EXC(	LDFIRST	t3, FIRST(0)(src),	.Ll_exc)
 	ADD	t2, zero, NBYTES
-EXC(	LDREST	t3, REST(0)(src),	l_exc_copy)
+EXC(	LDREST	t3, REST(0)(src),	.Ll_exc_copy)
 	SUB	t2, t2, t1	# t2 = number of bytes copied
 	xor	match, t0, t1
 	R10KCBARRIER(0(ra))
-EXC(	STFIRST t3, FIRST(0)(dst),	s_exc)
-	beq	len, t2, done
+EXC(	STFIRST t3, FIRST(0)(dst),	.Ls_exc)
+	beq	len, t2, .Ldone
 	 SUB	len, len, t2
 	ADD	dst, dst, t2
-	beqz	match, both_aligned
+	beqz	match, .Lboth_aligned
 	 ADD	src, src, t2
 
-src_unaligned_dst_aligned:
+.Lsrc_unaligned_dst_aligned:
 	SRL	t0, len, LOG_NBYTES+2    # +2 for 4 units/iter
 	PREF(	0, 3*32(src) )
-	beqz	t0, cleanup_src_unaligned
+	beqz	t0, .Lcleanup_src_unaligned
 	 and	rem, len, (4*NBYTES-1)   # rem = len % 4*NBYTES
 	PREF(	1, 3*32(dst) )
 1:
@@ -360,58 +360,58 @@ src_unaligned_dst_aligned:
  * are to the same unit (unless src is aligned, but it's not).
  */
 	R10KCBARRIER(0(ra))
-EXC(	LDFIRST	t0, FIRST(0)(src),	l_exc)
-EXC(	LDFIRST	t1, FIRST(1)(src),	l_exc_copy)
+EXC(	LDFIRST	t0, FIRST(0)(src),	.Ll_exc)
+EXC(	LDFIRST	t1, FIRST(1)(src),	.Ll_exc_copy)
 	SUB     len, len, 4*NBYTES
-EXC(	LDREST	t0, REST(0)(src),	l_exc_copy)
-EXC(	LDREST	t1, REST(1)(src),	l_exc_copy)
-EXC(	LDFIRST	t2, FIRST(2)(src),	l_exc_copy)
-EXC(	LDFIRST	t3, FIRST(3)(src),	l_exc_copy)
-EXC(	LDREST	t2, REST(2)(src),	l_exc_copy)
-EXC(	LDREST	t3, REST(3)(src),	l_exc_copy)
+EXC(	LDREST	t0, REST(0)(src),	.Ll_exc_copy)
+EXC(	LDREST	t1, REST(1)(src),	.Ll_exc_copy)
+EXC(	LDFIRST	t2, FIRST(2)(src),	.Ll_exc_copy)
+EXC(	LDFIRST	t3, FIRST(3)(src),	.Ll_exc_copy)
+EXC(	LDREST	t2, REST(2)(src),	.Ll_exc_copy)
+EXC(	LDREST	t3, REST(3)(src),	.Ll_exc_copy)
 	PREF(	0, 9*32(src) )		# 0 is PREF_LOAD  (not streamed)
 	ADD	src, src, 4*NBYTES
 #ifdef CONFIG_CPU_SB1
 	nop				# improves slotting
 #endif
-EXC(	STORE	t0, UNIT(0)(dst),	s_exc_p4u)
-EXC(	STORE	t1, UNIT(1)(dst),	s_exc_p3u)
-EXC(	STORE	t2, UNIT(2)(dst),	s_exc_p2u)
-EXC(	STORE	t3, UNIT(3)(dst),	s_exc_p1u)
+EXC(	STORE	t0, UNIT(0)(dst),	.Ls_exc_p4u)
+EXC(	STORE	t1, UNIT(1)(dst),	.Ls_exc_p3u)
+EXC(	STORE	t2, UNIT(2)(dst),	.Ls_exc_p2u)
+EXC(	STORE	t3, UNIT(3)(dst),	.Ls_exc_p1u)
 	PREF(	1, 9*32(dst) )     	# 1 is PREF_STORE (not streamed)
 	.set	reorder				/* DADDI_WAR */
 	ADD	dst, dst, 4*NBYTES
 	bne	len, rem, 1b
 	.set	noreorder
 
-cleanup_src_unaligned:
-	beqz	len, done
+.Lcleanup_src_unaligned:
+	beqz	len, .Ldone
 	 and	rem, len, NBYTES-1  # rem = len % NBYTES
-	beq	rem, len, copy_bytes
+	beq	rem, len, .Lcopy_bytes
 	 nop
 1:
 	R10KCBARRIER(0(ra))
-EXC(	LDFIRST t0, FIRST(0)(src),	l_exc)
-EXC(	LDREST	t0, REST(0)(src),	l_exc_copy)
+EXC(	LDFIRST t0, FIRST(0)(src),	.Ll_exc)
+EXC(	LDREST	t0, REST(0)(src),	.Ll_exc_copy)
 	ADD	src, src, NBYTES
 	SUB	len, len, NBYTES
-EXC(	STORE	t0, 0(dst),		s_exc_p1u)
+EXC(	STORE	t0, 0(dst),		.Ls_exc_p1u)
 	.set	reorder				/* DADDI_WAR */
 	ADD	dst, dst, NBYTES
 	bne	len, rem, 1b
 	.set	noreorder
 
-copy_bytes_checklen:
-	beqz	len, done
+.Lcopy_bytes_checklen:
+	beqz	len, .Ldone
 	 nop
-copy_bytes:
+.Lcopy_bytes:
 	/* 0 < len < NBYTES  */
 	R10KCBARRIER(0(ra))
 #define COPY_BYTE(N)			\
-EXC(	lb	t0, N(src), l_exc);	\
+EXC(	lb	t0, N(src), .Ll_exc);	\
 	SUB	len, len, 1;		\
-	beqz	len, done;		\
-EXC(	 sb	t0, N(dst), s_exc_p1)
+	beqz	len, .Ldone;		\
+EXC(	 sb	t0, N(dst), .Ls_exc_p1)
 
 	COPY_BYTE(0)
 	COPY_BYTE(1)
@@ -421,16 +421,16 @@ EXC(	 sb	t0, N(dst), s_exc_p1)
 	COPY_BYTE(4)
 	COPY_BYTE(5)
 #endif
-EXC(	lb	t0, NBYTES-2(src), l_exc)
+EXC(	lb	t0, NBYTES-2(src), .Ll_exc)
 	SUB	len, len, 1
 	jr	ra
-EXC(	 sb	t0, NBYTES-2(dst), s_exc_p1)
-done:
+EXC(	 sb	t0, NBYTES-2(dst), .Ls_exc_p1)
+.Ldone:
 	jr	ra
 	 nop
 	END(memcpy)
 
-l_exc_copy:
+.Ll_exc_copy:
 	/*
 	 * Copy bytes from src until faulting load address (or until a
 	 * lb faults)
@@ -445,14 +445,14 @@ l_exc_copy:
 	 nop
 	LOAD	t0, THREAD_BUADDR(t0)
 1:
-EXC(	lb	t1, 0(src),	l_exc)
+EXC(	lb	t1, 0(src),	.Ll_exc)
 	ADD	src, src, 1
 	sb	t1, 0(dst)	# can't fault -- we're copy_from_user
 	.set	reorder				/* DADDI_WAR */
 	ADD	dst, dst, 1
 	bne	src, t0, 1b
 	.set	noreorder
-l_exc:
+.Ll_exc:
 	LOAD	t0, TI_TASK($28)
 	 nop
 	LOAD	t0, THREAD_BUADDR(t0)	# t0 is just past last good address
@@ -471,7 +471,7 @@ l_exc:
 	 */
 	.set	reorder				/* DADDI_WAR */
 	SUB	src, len, 1
-	beqz	len, done
+	beqz	len, .Ldone
 	.set	noreorder
 1:	sb	zero, 0(dst)
 	ADD	dst, dst, 1
@@ -492,7 +492,7 @@ l_exc:
 
 #define SEXC(n)							\
 	.set	reorder;			/* DADDI_WAR */	\
-s_exc_p ## n ## u:						\
+.Ls_exc_p ## n ## u:						\
 	ADD	len, len, n*NBYTES;				\
 	jr	ra;						\
 	.set	noreorder
@@ -506,12 +506,12 @@ SEXC(3)
 SEXC(2)
 SEXC(1)
 
-s_exc_p1:
+.Ls_exc_p1:
 	.set	reorder				/* DADDI_WAR */
 	ADD	len, len, 1
 	jr	ra
 	.set	noreorder
-s_exc:
+.Ls_exc:
 	jr	ra
 	 nop
 
@@ -522,20 +522,20 @@ LEAF(memmove)
 	sltu	t0, a1, t0			# dst + len <= src -> memcpy
 	sltu	t1, a0, t1			# dst >= src + len -> memcpy
 	and	t0, t1
-	beqz	t0, __memcpy
+	beqz	t0, .L__memcpy
 	 move	v0, a0				/* return value */
-	beqz	a2, r_out
+	beqz	a2, .Lr_out
 	END(memmove)
 
 	/* fall through to __rmemcpy */
 LEAF(__rmemcpy)					/* a0=dst a1=src a2=len */
 	 sltu	t0, a1, a0
-	beqz	t0, r_end_bytes_up		# src >= dst
+	beqz	t0, .Lr_end_bytes_up		# src >= dst
 	 nop
 	ADD	a0, a2				# dst = dst + len
 	ADD	a1, a2				# src = src + len
 
-r_end_bytes:
+.Lr_end_bytes:
 	R10KCBARRIER(0(ra))
 	lb	t0, -1(a1)
 	SUB	a2, a2, 0x1
@@ -543,14 +543,14 @@ r_end_bytes:
 	SUB	a1, a1, 0x1
 	.set	reorder				/* DADDI_WAR */
 	SUB	a0, a0, 0x1
-	bnez	a2, r_end_bytes
+	bnez	a2, .Lr_end_bytes
 	.set	noreorder
 
-r_out:
+.Lr_out:
 	jr	ra
 	 move	a2, zero
 
-r_end_bytes_up:
+.Lr_end_bytes_up:
 	R10KCBARRIER(0(ra))
 	lb	t0, (a1)
 	SUB	a2, a2, 0x1
@@ -558,7 +558,7 @@ r_end_bytes_up:
 	ADD	a1, a1, 0x1
 	.set	reorder				/* DADDI_WAR */
 	ADD	a0, a0, 0x1
-	bnez	a2, r_end_bytes_up
+	bnez	a2, .Lr_end_bytes_up
 	.set	noreorder
 
 	jr	ra
diff --git a/arch/mips/lib/memset.S b/arch/mips/lib/memset.S
index c018a4721693..77dc3b20110a 100644
--- a/arch/mips/lib/memset.S
+++ b/arch/mips/lib/memset.S
@@ -72,7 +72,7 @@ LEAF(memset)
 
 FEXPORT(__bzero)
 	sltiu		t0, a2, LONGSIZE	/* very small region? */
-	bnez		t0, small_memset
+	bnez		t0, .Lsmall_memset
 	 andi		t0, a0, LONGMASK	/* aligned? */
 
 #ifndef CONFIG_CPU_DADDI_WORKAROUNDS
@@ -88,28 +88,28 @@ FEXPORT(__bzero)
 
 	R10KCBARRIER(0(ra))
 #ifdef __MIPSEB__
-	EX(LONG_S_L, a1, (a0), first_fixup)	/* make word/dword aligned */
+	EX(LONG_S_L, a1, (a0), .Lfirst_fixup)	/* make word/dword aligned */
 #endif
 #ifdef __MIPSEL__
-	EX(LONG_S_R, a1, (a0), first_fixup)	/* make word/dword aligned */
+	EX(LONG_S_R, a1, (a0), .Lfirst_fixup)	/* make word/dword aligned */
 #endif
 	PTR_SUBU	a0, t0			/* long align ptr */
 	PTR_ADDU	a2, t0			/* correct size */
 
 1:	ori		t1, a2, 0x3f		/* # of full blocks */
 	xori		t1, 0x3f
-	beqz		t1, memset_partial	/* no block to fill */
+	beqz		t1, .Lmemset_partial	/* no block to fill */
 	 andi		t0, a2, 0x40-LONGSIZE
 
 	PTR_ADDU	t1, a0			/* end address */
 	.set		reorder
 1:	PTR_ADDIU	a0, 64
 	R10KCBARRIER(0(ra))
-	f_fill64 a0, -64, a1, fwd_fixup
+	f_fill64 a0, -64, a1, .Lfwd_fixup
 	bne		t1, a0, 1b
 	.set		noreorder
 
-memset_partial:
+.Lmemset_partial:
 	R10KCBARRIER(0(ra))
 	PTR_LA		t1, 2f			/* where to start */
 #if LONGSIZE == 4
@@ -126,7 +126,7 @@ memset_partial:
 	.set		push
 	.set		noreorder
 	.set		nomacro
-	f_fill64 a0, -64, a1, partial_fixup	/* ... but first do longs ... */
+	f_fill64 a0, -64, a1, .Lpartial_fixup	/* ... but first do longs ... */
 2:	.set		pop
 	andi		a2, LONGMASK		/* At most one long to go */
 
@@ -134,15 +134,15 @@ memset_partial:
 	 PTR_ADDU	a0, a2			/* What's left */
 	R10KCBARRIER(0(ra))
 #ifdef __MIPSEB__
-	EX(LONG_S_R, a1, -1(a0), last_fixup)
+	EX(LONG_S_R, a1, -1(a0), .Llast_fixup)
 #endif
 #ifdef __MIPSEL__
-	EX(LONG_S_L, a1, -1(a0), last_fixup)
+	EX(LONG_S_L, a1, -1(a0), .Llast_fixup)
 #endif
 1:	jr		ra
 	 move		a2, zero
 
-small_memset:
+.Lsmall_memset:
 	beqz		a2, 2f
 	 PTR_ADDU	t1, a0, a2
 
@@ -155,11 +155,11 @@ small_memset:
 	 move		a2, zero
 	END(memset)
 
-first_fixup:
+.Lfirst_fixup:
 	jr	ra
 	 nop
 
-fwd_fixup:
+.Lfwd_fixup:
 	PTR_L		t0, TI_TASK($28)
 	LONG_L		t0, THREAD_BUADDR(t0)
 	andi		a2, 0x3f
@@ -167,7 +167,7 @@ fwd_fixup:
 	jr		ra
 	 LONG_SUBU	a2, t0
 
-partial_fixup:
+.Lpartial_fixup:
 	PTR_L		t0, TI_TASK($28)
 	LONG_L		t0, THREAD_BUADDR(t0)
 	andi		a2, LONGMASK
@@ -175,6 +175,6 @@ partial_fixup:
 	jr		ra
 	 LONG_SUBU	a2, t0
 
-last_fixup:
+.Llast_fixup:
 	jr		ra
 	 andi		v1, a2, LONGMASK
diff --git a/arch/mips/lib/strlen_user.S b/arch/mips/lib/strlen_user.S
index eca558d83a37..fdbb970f670d 100644
--- a/arch/mips/lib/strlen_user.S
+++ b/arch/mips/lib/strlen_user.S
@@ -24,16 +24,16 @@
 LEAF(__strlen_user_asm)
 	LONG_L		v0, TI_ADDR_LIMIT($28)	# pointer ok?
 	and		v0, a0
-	bnez		v0, fault
+	bnez		v0, .Lfault
 
 FEXPORT(__strlen_user_nocheck_asm)
 	move		v0, a0
-1:	EX(lb, t0, (v0), fault)
+1:	EX(lb, t0, (v0), .Lfault)
 	PTR_ADDIU	v0, 1
 	bnez		t0, 1b
 	PTR_SUBU	v0, a0
 	jr		ra
 	END(__strlen_user_asm)
 
-fault:	move		v0, zero
+.Lfault:	move		v0, zero
 	jr		ra
diff --git a/arch/mips/lib/strncpy_user.S b/arch/mips/lib/strncpy_user.S
index 8a63f72b81d3..7201b2ff08c8 100644
--- a/arch/mips/lib/strncpy_user.S
+++ b/arch/mips/lib/strncpy_user.S
@@ -30,13 +30,13 @@
 LEAF(__strncpy_from_user_asm)
 	LONG_L		v0, TI_ADDR_LIMIT($28)	# pointer ok?
 	and		v0, a1
-	bnez		v0, fault
+	bnez		v0, .Lfault
 
 FEXPORT(__strncpy_from_user_nocheck_asm)
 	move		v0, zero
 	move		v1, a1
 	.set		noreorder
-1:	EX(lbu, t0, (v1), fault)
+1:	EX(lbu, t0, (v1), .Lfault)
 	PTR_ADDIU	v1, 1
 	R10KCBARRIER(0(ra))
 	beqz		t0, 2f
@@ -47,13 +47,13 @@ FEXPORT(__strncpy_from_user_nocheck_asm)
 	bne		v0, a2, 1b
 2:	PTR_ADDU	t0, a1, v0
 	xor		t0, a1
-	bltz		t0, fault
+	bltz		t0, .Lfault
 	jr		ra			# return n
 	END(__strncpy_from_user_asm)
 
-fault:	li		v0, -EFAULT
+.Lfault:	li		v0, -EFAULT
 	jr		ra
 
 	.section	__ex_table,"a"
-	PTR		1b, fault
+	PTR		1b, .Lfault
 	.previous
diff --git a/arch/mips/lib/strnlen_user.S b/arch/mips/lib/strnlen_user.S
index c0ea15194a0e..c768e3000616 100644
--- a/arch/mips/lib/strnlen_user.S
+++ b/arch/mips/lib/strnlen_user.S
@@ -28,18 +28,19 @@
 LEAF(__strnlen_user_asm)
 	LONG_L		v0, TI_ADDR_LIMIT($28)	# pointer ok?
 	and		v0, a0
-	bnez		v0, fault
+	bnez		v0, .Lfault
 
 FEXPORT(__strnlen_user_nocheck_asm)
 	move		v0, a0
 	PTR_ADDU	a1, a0			# stop pointer
 1:	beq		v0, a1, 1f		# limit reached?
-	EX(lb, t0, (v0), fault)
+	EX(lb, t0, (v0), .Lfault)
 	PTR_ADDU	v0, 1
 	bnez		t0, 1b
 1:	PTR_SUBU	v0, a0
 	jr		ra
 	END(__strnlen_user_asm)
 
-fault:	move		v0, zero
+.Lfault:
+	move		v0, zero
 	jr		ra
-- 
cgit v1.2.3-59-g8ed1b


From 237cfee1db66147aef4457f02b56a41e6f84bfd3 Mon Sep 17 00:00:00 2001
From: Manuel Lauss <mano@roarinelk.homelinux.net>
Date: Thu, 6 Dec 2007 09:07:55 +0100
Subject: [MIPS] Alchemy: Au1210/Au1250 CPU support

This patch adds IDs for new Au1200 variants: Au1210 and Au1250.
They are essentially identical to the Au1200 except for the Au1210
which has a different SoC-ID in the PRId register [bits 31:24].
The Au1250 is a "Au1200 V0.2".

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/cpu-probe.c | 9 +++++++++
 arch/mips/mm/c-r4k.c         | 2 ++
 arch/mips/mm/tlbex.c         | 2 ++
 include/asm-mips/cpu.h       | 4 ++--
 4 files changed, 15 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 5c2794391bf5..5861a432a52f 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -188,6 +188,8 @@ static inline void check_wait(void)
 	case CPU_AU1500:
 	case CPU_AU1550:
 	case CPU_AU1200:
+	case CPU_AU1210:
+	case CPU_AU1250:
 		if (allow_au1k_wait)
 			cpu_wait = au1k_wait;
 		break;
@@ -733,6 +735,11 @@ static inline void cpu_probe_alchemy(struct cpuinfo_mips *c)
 			break;
 		case 4:
 			c->cputype = CPU_AU1200;
+			if (2 == (c->processor_id & 0xff))
+				c->cputype = CPU_AU1250;
+			break;
+		case 5:
+			c->cputype = CPU_AU1210;
 			break;
 		default:
 			panic("Unknown Au Core!");
@@ -858,6 +865,8 @@ static __init const char *cpu_to_name(struct cpuinfo_mips *c)
 	case CPU_AU1100:	name = "Au1100"; break;
 	case CPU_AU1550:	name = "Au1550"; break;
 	case CPU_AU1200:	name = "Au1200"; break;
+	case CPU_AU1210:	name = "Au1210"; break;
+	case CPU_AU1250:	name = "Au1250"; break;
 	case CPU_4KEC:		name = "MIPS 4KEc"; break;
 	case CPU_4KSC:		name = "MIPS 4KSc"; break;
 	case CPU_VR41XX:	name = "NEC Vr41xx"; break;
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 06074948450d..02bd180f0e02 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -980,6 +980,8 @@ static void __init probe_pcache(void)
 	case CPU_AU1100:
 	case CPU_AU1550:
 	case CPU_AU1200:
+	case CPU_AU1210:
+	case CPU_AU1250:
 		c->icache.flags |= MIPS_CACHE_IC_F_DC;
 		break;
 	}
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index c298344fcb71..d026302e0ecc 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -917,6 +917,8 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l,
 	case CPU_AU1500:
 	case CPU_AU1550:
 	case CPU_AU1200:
+	case CPU_AU1210:
+	case CPU_AU1250:
 	case CPU_PR4450:
 		i_nop(p);
 		tlbw(p);
diff --git a/include/asm-mips/cpu.h b/include/asm-mips/cpu.h
index 54fc18a4e5a8..bf5bbc78a9f7 100644
--- a/include/asm-mips/cpu.h
+++ b/include/asm-mips/cpu.h
@@ -195,8 +195,8 @@ enum cpu_type_enum {
 	 * MIPS32 class processors
 	 */
 	CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_74K, CPU_AU1000,
-	CPU_AU1100, CPU_AU1200, CPU_AU1500, CPU_AU1550, CPU_PR4450,
-	CPU_BCM3302, CPU_BCM4710,
+	CPU_AU1100, CPU_AU1200, CPU_AU1210, CPU_AU1250, CPU_AU1500, CPU_AU1550,
+	CPU_PR4450, CPU_BCM3302, CPU_BCM4710,
 
 	/*
 	 * MIPS64 class processors
-- 
cgit v1.2.3-59-g8ed1b


From 231a35d37293ab88d325a9cb94e5474c156282c0 Mon Sep 17 00:00:00 2001
From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Date: Fri, 4 Jan 2008 23:31:07 +0100
Subject: [MIPS] RM: Collected changes

- EISA support for non PCI RMs (RM200 and RM400-xxx). The major part
  is the splitting of the EISA and onboard ISA of the RM200, which
  makes the EISA bus on the RM200 look like on other RMs.
- 64bit kernel support
- system type detection is now common for big and little endian
- moved sniprom code to arch/mips/fw
- added call_o32 function to arch/mips/fw/lib, which uses a private
  stack for calling prom functions
- fix problem with ISA interrupts, which makes using PIT clockevent
  possible

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig           |   4 +
 arch/mips/Makefile          |   2 +
 arch/mips/fw/lib/Makefile   |   5 +
 arch/mips/fw/lib/call_o32.S |  97 +++++++++++++
 arch/mips/fw/sni/Makefile   |   5 +
 arch/mips/fw/sni/sniprom.c  | 151 ++++++++++++++++++++
 arch/mips/sni/Makefile      |   2 +-
 arch/mips/sni/a20r.c        |  13 +-
 arch/mips/sni/eisa.c        |  50 +++++++
 arch/mips/sni/irq.c         |   4 +-
 arch/mips/sni/rm200.c       | 326 ++++++++++++++++++++++++++++++++++++++++++--
 arch/mips/sni/setup.c       | 143 ++++++++++++++++++-
 arch/mips/sni/sniprom.c     | 251 ----------------------------------
 arch/mips/sni/time.c        |   1 +
 include/asm-mips/bootinfo.h |   1 +
 include/asm-mips/mipsprom.h |   2 +
 include/asm-mips/sni.h      | 159 ++++++++++++---------
 17 files changed, 878 insertions(+), 338 deletions(-)
 create mode 100644 arch/mips/fw/lib/Makefile
 create mode 100644 arch/mips/fw/lib/call_o32.S
 create mode 100644 arch/mips/fw/sni/Makefile
 create mode 100644 arch/mips/fw/sni/sniprom.c
 create mode 100644 arch/mips/sni/eisa.c
 delete mode 100644 arch/mips/sni/sniprom.c

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 01740ef77824..d2d9cd8e4912 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -602,6 +602,7 @@ config SNI_RM
 	bool "SNI RM200/300/400"
 	select ARC if CPU_LITTLE_ENDIAN
 	select ARC32 if CPU_LITTLE_ENDIAN
+	select SNIPROM if CPU_BIG_ENDIAN
 	select ARCH_MAY_HAVE_PC_FDC
 	select BOOT_ELF32
 	select CEVT_R4K
@@ -1003,6 +1004,9 @@ config DEFAULT_SGI_PARTITION
 config ARC32
 	bool
 
+config SNIPROM
+	bool
+
 config BOOT_ELF32
 	bool
 
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index dd668f3a8394..2df68cd0ed40 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -156,6 +156,8 @@ endif
 #
 libs-$(CONFIG_ARC)		+= arch/mips/fw/arc/
 libs-$(CONFIG_CFE)		+= arch/mips/fw/cfe/
+libs-$(CONFIG_SNIPROM)		+= arch/mips/fw/sni/
+libs-y				+= arch/mips/fw/lib/
 libs-$(CONFIG_SIBYTE_CFE)	+= arch/mips/sibyte/cfe/
 
 #
diff --git a/arch/mips/fw/lib/Makefile b/arch/mips/fw/lib/Makefile
new file mode 100644
index 000000000000..84befc968fc4
--- /dev/null
+++ b/arch/mips/fw/lib/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for generic prom monitor library routines under Linux.
+#
+
+lib-$(CONFIG_64BIT)	+= call_o32.o
diff --git a/arch/mips/fw/lib/call_o32.S b/arch/mips/fw/lib/call_o32.S
new file mode 100644
index 000000000000..bdf7d1d4081a
--- /dev/null
+++ b/arch/mips/fw/lib/call_o32.S
@@ -0,0 +1,97 @@
+/*
+ *	arch/mips/dec/prom/call_o32.S
+ *
+ *	O32 interface for the 64 (or N32) ABI.
+ *
+ *	Copyright (C) 2002  Maciej W. Rozycki
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ */
+
+#include <asm/asm.h>
+#include <asm/regdef.h>
+
+/* Maximum number of arguments supported.  Must be even!  */
+#define O32_ARGC	32
+/* Number of static registers we save.  */
+#define O32_STATC	11
+/* Frame size for static register  */
+#define O32_FRAMESZ	(SZREG * O32_STATC)
+/* Frame size on new stack */
+#define O32_FRAMESZ_NEW (SZREG + 4 * O32_ARGC)
+
+		.text
+
+/*
+ * O32 function call dispatcher, for interfacing 32-bit ROM routines.
+ *
+ * The standard 64 (N32) calling sequence is supported, with a0
+ * holding a function pointer, a1 a new stack pointer, a2-a7 -- its
+ * first six arguments and the stack -- remaining ones (up to O32_ARGC,
+ * including a2-a7). Static registers, gp and fp are preserved, v0 holds
+ * a result. This code relies on the called o32 function for sp and ra
+ * restoration and this dispatcher has to be placed in a KSEGx (or KUSEG)
+ * address space.  Any pointers passed have to point to addresses within
+ * one of these spaces as well.
+ */
+NESTED(call_o32, O32_FRAMESZ, ra)
+		REG_SUBU	sp,O32_FRAMESZ
+
+		REG_S		ra,O32_FRAMESZ-1*SZREG(sp)
+		REG_S		fp,O32_FRAMESZ-2*SZREG(sp)
+		REG_S		gp,O32_FRAMESZ-3*SZREG(sp)
+		REG_S		s7,O32_FRAMESZ-4*SZREG(sp)
+		REG_S		s6,O32_FRAMESZ-5*SZREG(sp)
+		REG_S		s5,O32_FRAMESZ-6*SZREG(sp)
+		REG_S		s4,O32_FRAMESZ-7*SZREG(sp)
+		REG_S		s3,O32_FRAMESZ-8*SZREG(sp)
+		REG_S		s2,O32_FRAMESZ-9*SZREG(sp)
+		REG_S		s1,O32_FRAMESZ-10*SZREG(sp)
+		REG_S		s0,O32_FRAMESZ-11*SZREG(sp)
+
+		move		jp,a0
+		REG_SUBU	s0,a1,O32_FRAMESZ_NEW
+		REG_S		sp,O32_FRAMESZ_NEW-1*SZREG(s0)
+
+		sll		a0,a2,zero
+		sll		a1,a3,zero
+		sll		a2,a4,zero
+		sll		a3,a5,zero
+		sw		a6,0x10(s0)
+		sw		a7,0x14(s0)
+
+		PTR_LA		t0,O32_FRAMESZ(sp)
+		PTR_LA		t1,0x18(s0)
+		li		t2,O32_ARGC-6
+1:
+		lw		t3,(t0)
+		REG_ADDU	t0,SZREG
+		sw		t3,(t1)
+		REG_SUBU	t2,1
+		REG_ADDU	t1,4
+		bnez		t2,1b
+
+		move		sp,s0
+
+		jalr		jp
+
+		REG_L		sp,O32_FRAMESZ_NEW-1*SZREG(sp)
+
+		REG_L		s0,O32_FRAMESZ-11*SZREG(sp)
+		REG_L		s1,O32_FRAMESZ-10*SZREG(sp)
+		REG_L		s2,O32_FRAMESZ-9*SZREG(sp)
+		REG_L		s3,O32_FRAMESZ-8*SZREG(sp)
+		REG_L		s4,O32_FRAMESZ-7*SZREG(sp)
+		REG_L		s5,O32_FRAMESZ-6*SZREG(sp)
+		REG_L		s6,O32_FRAMESZ-5*SZREG(sp)
+		REG_L		s7,O32_FRAMESZ-4*SZREG(sp)
+		REG_L		gp,O32_FRAMESZ-3*SZREG(sp)
+		REG_L		fp,O32_FRAMESZ-2*SZREG(sp)
+		REG_L		ra,O32_FRAMESZ-1*SZREG(sp)
+
+		REG_ADDU	sp,O32_FRAMESZ
+		jr		ra
+END(call_o32)
diff --git a/arch/mips/fw/sni/Makefile b/arch/mips/fw/sni/Makefile
new file mode 100644
index 000000000000..d9740a3788e2
--- /dev/null
+++ b/arch/mips/fw/sni/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the SNI prom monitor routines under Linux.
+#
+
+lib-$(CONFIG_SNIPROM)	+= sniprom.o
diff --git a/arch/mips/fw/sni/sniprom.c b/arch/mips/fw/sni/sniprom.c
new file mode 100644
index 000000000000..96ba99202758
--- /dev/null
+++ b/arch/mips/fw/sni/sniprom.c
@@ -0,0 +1,151 @@
+/*
+ * Big Endian PROM code for SNI RM machines
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2005-2006 Florian Lohoff (flo@rfc822.org)
+ * Copyright (C) 2005-2006 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/console.h>
+
+#include <asm/addrspace.h>
+#include <asm/sni.h>
+#include <asm/mipsprom.h>
+#include <asm/mipsregs.h>
+#include <asm/bootinfo.h>
+
+/* special SNI prom calls */
+/*
+ * This does not exist in all proms - SINIX compares
+ * the prom env variable "version" against "2.0008"
+ * or greater. If lesser it tries to probe interesting
+ * registers
+ */
+#define PROM_GET_MEMCONF	58
+#define PROM_GET_HWCONF         61
+
+#define PROM_VEC		(u64 *)CKSEG1ADDR(0x1fc00000)
+#define PROM_ENTRY(x)		(PROM_VEC + (x))
+
+#define ___prom_putchar         ((int *(*)(int))PROM_ENTRY(PROM_PUTCHAR))
+#define ___prom_getenv          ((char *(*)(char *))PROM_ENTRY(PROM_GETENV))
+#define ___prom_get_memconf     ((void (*)(void *))PROM_ENTRY(PROM_GET_MEMCONF))
+#define ___prom_get_hwconf      ((u32 (*)(void))PROM_ENTRY(PROM_GET_HWCONF))
+
+#ifdef CONFIG_64BIT
+
+static u8 o32_stk[16384];
+#define O32_STK   &o32_stk[sizeof(o32_stk)]
+
+#define __PROM_O32(fun, arg) fun arg __asm__(#fun); \
+				     __asm__(#fun " = call_o32")
+
+int   __PROM_O32(__prom_putchar, (int *(*)(int), void *, int));
+char *__PROM_O32(__prom_getenv, (char *(*)(char *), void *, char *));
+void  __PROM_O32(__prom_get_memconf, (void (*)(void *), void *, void *));
+u32   __PROM_O32(__prom_get_hwconf, (u32 (*)(void), void *));
+
+#define _prom_putchar(x)     __prom_putchar(___prom_putchar, O32_STK, x)
+#define _prom_getenv(x)      __prom_getenv(___prom_getenv, O32_STK, x)
+#define _prom_get_memconf(x) __prom_get_memconf(___prom_get_memconf, O32_STK, x)
+#define _prom_get_hwconf()   __prom_get_hwconf(___prom_get_hwconf, O32_STK)
+
+#else
+#define _prom_putchar(x)     ___prom_putchar(x)
+#define _prom_getenv(x)      ___prom_getenv(x)
+#define _prom_get_memconf(x) ___prom_get_memconf(x)
+#define _prom_get_hwconf(x)  ___prom_get_hwconf(x)
+#endif
+
+void prom_putchar(char c)
+{
+	_prom_putchar(c);
+}
+
+
+char *prom_getenv(char *s)
+{
+	return _prom_getenv(s);
+}
+
+void *prom_get_hwconf(void)
+{
+	u32 hwconf = _prom_get_hwconf();
+
+	if (hwconf == 0xffffffff)
+		return NULL;
+
+	return (void *)CKSEG1ADDR(hwconf);
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+/*
+ * /proc/cpuinfo system type
+ *
+ */
+char *system_type = "Unknown";
+const char *get_system_type(void)
+{
+	return system_type;
+}
+
+static void __init sni_mem_init(void)
+{
+	int i, memsize;
+	struct membank {
+		u32		size;
+		u32		base;
+		u32		size2;
+		u32		pad1;
+		u32		pad2;
+	} memconf[8];
+	int brd_type = *(unsigned char *)SNI_IDPROM_BRDTYPE;
+
+
+	/* MemSIZE from prom in 16MByte chunks */
+	memsize = *((unsigned char *) SNI_IDPROM_MEMSIZE) * 16;
+
+	pr_debug("IDProm memsize: %u MByte\n", memsize);
+
+	/* get memory bank layout from prom */
+	_prom_get_memconf(&memconf);
+
+	pr_debug("prom_get_mem_conf memory configuration:\n");
+	for (i = 0; i < 8 && memconf[i].size; i++) {
+		if (brd_type == SNI_BRD_PCI_TOWER ||
+		    brd_type == SNI_BRD_PCI_TOWER_CPLUS) {
+			if (memconf[i].base >= 0x20000000 &&
+			    memconf[i].base <  0x30000000)
+				memconf[i].base -= 0x20000000;
+		}
+		pr_debug("Bank%d: %08x @ %08x\n", i,
+			memconf[i].size, memconf[i].base);
+		add_memory_region(memconf[i].base, memconf[i].size,
+				  BOOT_MEM_RAM);
+	}
+}
+
+void __init prom_init(void)
+{
+	int argc = fw_arg0;
+	u32 *argv = (u32 *)CKSEG0ADDR(fw_arg1);
+	int i;
+
+	sni_mem_init();
+
+	/* copy prom cmdline parameters to kernel cmdline */
+	for (i = 1; i < argc; i++) {
+		strcat(arcs_cmdline, (char *)CKSEG0ADDR(argv[i]));
+		if (i < (argc - 1))
+			strcat(arcs_cmdline, " ");
+	}
+}
diff --git a/arch/mips/sni/Makefile b/arch/mips/sni/Makefile
index 3a99cd62c0bd..a7dbeebe7fe6 100644
--- a/arch/mips/sni/Makefile
+++ b/arch/mips/sni/Makefile
@@ -3,6 +3,6 @@
 #
 
 obj-y += irq.o reset.o setup.o a20r.o rm200.o pcimt.o pcit.o time.o
-obj-$(CONFIG_CPU_BIG_ENDIAN) += sniprom.o
+obj-$(CONFIG_EISA) += eisa.o
 
 EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/sni/a20r.c b/arch/mips/sni/a20r.c
index b74607599971..3f8cf5eb2f06 100644
--- a/arch/mips/sni/a20r.c
+++ b/arch/mips/sni/a20r.c
@@ -117,10 +117,19 @@ static struct resource sc26xx_rsrc[] = {
 	}
 };
 
+static unsigned int sc26xx_data[2] = {
+	/* DTR   |   RTS    |   DSR    |   CTS     |   DCD     |   RI    */
+	(8 << 0) | (4 << 4) | (6 << 8) | (0 << 12) | (6 << 16) | (0 << 20),
+	(3 << 0) | (2 << 4) | (1 << 8) | (2 << 12) | (3 << 16) | (4 << 20)
+};
+
 static struct platform_device sc26xx_pdev = {
 	.name           = "SC26xx",
 	.num_resources  = ARRAY_SIZE(sc26xx_rsrc),
-	.resource       = sc26xx_rsrc
+	.resource       = sc26xx_rsrc,
+	.dev			= {
+		.platform_data	= sc26xx_data,
+	}
 };
 
 static u32 a20r_ack_hwint(void)
@@ -231,9 +240,9 @@ static int __init snirm_a20r_setup_devinit(void)
 	        platform_device_register(&sc26xx_pdev);
 	        platform_device_register(&a20r_serial8250_device);
 	        platform_device_register(&a20r_ds1216_device);
+		sni_eisa_root_init();
 	        break;
 	}
-
 	return 0;
 }
 
diff --git a/arch/mips/sni/eisa.c b/arch/mips/sni/eisa.c
new file mode 100644
index 000000000000..7396cd719900
--- /dev/null
+++ b/arch/mips/sni/eisa.c
@@ -0,0 +1,50 @@
+/*
+ * Virtual EISA root driver.
+ * Acts as a placeholder if we don't have a proper EISA bridge.
+ *
+ * (C) 2003 Marc Zyngier <maz@wild-wind.fr.eu.org>
+ * modified for SNI usage by Thomas Bogendoerfer
+ *
+ * This code is released under the GPL version 2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/eisa.h>
+#include <linux/init.h>
+
+/* The default EISA device parent (virtual root device).
+ * Now use a platform device, since that's the obvious choice. */
+
+static struct platform_device eisa_root_dev = {
+	.name = "eisa",
+	.id   = 0,
+};
+
+static struct eisa_root_device eisa_bus_root = {
+	.dev           = &eisa_root_dev.dev,
+	.bus_base_addr = 0,
+	.res	       = &ioport_resource,
+	.slots	       = EISA_MAX_SLOTS,
+	.dma_mask      = 0xffffffff,
+	.force_probe   = 1,
+};
+
+int __init sni_eisa_root_init(void)
+{
+	int r;
+
+	r = platform_device_register(&eisa_root_dev);
+	if (!r)
+		return r;
+
+	eisa_root_dev.dev.driver_data = &eisa_bus_root;
+
+	if (eisa_root_register(&eisa_bus_root)) {
+		/* A real bridge may have been registered before
+		 * us. So quietly unregister. */
+		platform_device_unregister(&eisa_root_dev);
+		return -1;
+	}
+	return 0;
+}
diff --git a/arch/mips/sni/irq.c b/arch/mips/sni/irq.c
index 9ccffdfb8289..e8e72bb3a9af 100644
--- a/arch/mips/sni/irq.c
+++ b/arch/mips/sni/irq.c
@@ -35,14 +35,14 @@ static irqreturn_t sni_isa_irq_handler(int dummy, void *p)
 	if (unlikely(irq < 0))
 		return IRQ_NONE;
 
-	do_IRQ(irq);
+	generic_handle_irq(irq);
 	return IRQ_HANDLED;
 }
 
 struct irqaction sni_isa_irq = {
 	.handler = sni_isa_irq_handler,
 	.name = "ISA",
-	.flags = IRQF_SHARED
+	.flags = IRQF_SHARED | IRQF_DISABLED
 };
 
 /*
diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
index 67b061eef6cd..5310aa75afa4 100644
--- a/arch/mips/sni/rm200.c
+++ b/arch/mips/sni/rm200.c
@@ -5,30 +5,36 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 2006 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
+ * Copyright (C) 2006,2007 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
+ *
+ * i8259 parts ripped out of arch/mips/kernel/i8259.c
  */
 
+#include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/serial_8250.h>
+#include <linux/io.h>
 
 #include <asm/sni.h>
 #include <asm/time.h>
 #include <asm/irq_cpu.h>
 
-#define PORT(_base,_irq)				\
+#define RM200_I8259A_IRQ_BASE 32
+
+#define MEMPORT(_base,_irq)				\
 	{						\
-		.iobase		= _base,		\
+		.mapbase	= _base,		\
 		.irq		= _irq,			\
 		.uartclk	= 1843200,		\
-		.iotype		= UPIO_PORT,		\
-		.flags		= UPF_BOOT_AUTOCONF,	\
+		.iotype		= UPIO_MEM,		\
+		.flags		= UPF_BOOT_AUTOCONF|UPF_IOREMAP, \
 	}
 
 static struct plat_serial8250_port rm200_data[] = {
-	PORT(0x3f8, 4),
-	PORT(0x2f8, 3),
+	MEMPORT(0x160003f8, RM200_I8259A_IRQ_BASE + 4),
+	MEMPORT(0x160002f8, RM200_I8259A_IRQ_BASE + 3),
 	{ },
 };
 
@@ -112,15 +118,311 @@ static int __init snirm_setup_devinit(void)
 		platform_device_register(&rm200_ds1216_device);
 		platform_device_register(&snirm_82596_rm200_pdev);
 		platform_device_register(&snirm_53c710_rm200_pdev);
+		sni_eisa_root_init();
 	}
 	return 0;
 }
 
 device_initcall(snirm_setup_devinit);
 
+/*
+ * RM200 has an ISA and an EISA bus. The iSA bus is only used
+ * for onboard devices and also has twi i8259 PICs. Since these
+ * PICs are no accessible via inb/outb the following code uses
+ * readb/writeb to access them
+ */
+
+DEFINE_SPINLOCK(sni_rm200_i8259A_lock);
+#define PIC_CMD    0x00
+#define PIC_IMR    0x01
+#define PIC_ISR    PIC_CMD
+#define PIC_POLL   PIC_ISR
+#define PIC_OCW3   PIC_ISR
+
+/* i8259A PIC related value */
+#define PIC_CASCADE_IR		2
+#define MASTER_ICW4_DEFAULT	0x01
+#define SLAVE_ICW4_DEFAULT	0x01
+
+/*
+ * This contains the irq mask for both 8259A irq controllers,
+ */
+static unsigned int rm200_cached_irq_mask = 0xffff;
+static __iomem u8 *rm200_pic_master;
+static __iomem u8 *rm200_pic_slave;
+
+#define cached_master_mask	(rm200_cached_irq_mask)
+#define cached_slave_mask	(rm200_cached_irq_mask >> 8)
+
+static void sni_rm200_disable_8259A_irq(unsigned int irq)
+{
+	unsigned int mask;
+	unsigned long flags;
+
+	irq -= RM200_I8259A_IRQ_BASE;
+	mask = 1 << irq;
+	spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
+	rm200_cached_irq_mask |= mask;
+	if (irq & 8)
+		writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
+	else
+		writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
+	spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
+}
+
+static void sni_rm200_enable_8259A_irq(unsigned int irq)
+{
+	unsigned int mask;
+	unsigned long flags;
+
+	irq -= RM200_I8259A_IRQ_BASE;
+	mask = ~(1 << irq);
+	spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
+	rm200_cached_irq_mask &= mask;
+	if (irq & 8)
+		writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
+	else
+		writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
+	spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
+}
+
+static inline int sni_rm200_i8259A_irq_real(unsigned int irq)
+{
+	int value;
+	int irqmask = 1 << irq;
+
+	if (irq < 8) {
+		writeb(0x0B, rm200_pic_master + PIC_CMD);
+		value = readb(rm200_pic_master + PIC_CMD) & irqmask;
+		writeb(0x0A, rm200_pic_master + PIC_CMD);
+		return value;
+	}
+	writeb(0x0B, rm200_pic_slave + PIC_CMD); /* ISR register */
+	value = readb(rm200_pic_slave + PIC_CMD) & (irqmask >> 8);
+	writeb(0x0A, rm200_pic_slave + PIC_CMD);
+	return value;
+}
+
+/*
+ * Careful! The 8259A is a fragile beast, it pretty
+ * much _has_ to be done exactly like this (mask it
+ * first, _then_ send the EOI, and the order of EOI
+ * to the two 8259s is important!
+ */
+void sni_rm200_mask_and_ack_8259A(unsigned int irq)
+{
+	unsigned int irqmask;
+	unsigned long flags;
+
+	irq -= RM200_I8259A_IRQ_BASE;
+	irqmask = 1 << irq;
+	spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
+	/*
+	 * Lightweight spurious IRQ detection. We do not want
+	 * to overdo spurious IRQ handling - it's usually a sign
+	 * of hardware problems, so we only do the checks we can
+	 * do without slowing down good hardware unnecessarily.
+	 *
+	 * Note that IRQ7 and IRQ15 (the two spurious IRQs
+	 * usually resulting from the 8259A-1|2 PICs) occur
+	 * even if the IRQ is masked in the 8259A. Thus we
+	 * can check spurious 8259A IRQs without doing the
+	 * quite slow i8259A_irq_real() call for every IRQ.
+	 * This does not cover 100% of spurious interrupts,
+	 * but should be enough to warn the user that there
+	 * is something bad going on ...
+	 */
+	if (rm200_cached_irq_mask & irqmask)
+		goto spurious_8259A_irq;
+	rm200_cached_irq_mask |= irqmask;
+
+handle_real_irq:
+	if (irq & 8) {
+		readb(rm200_pic_slave + PIC_IMR);
+		writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
+		writeb(0x60+(irq & 7), rm200_pic_slave + PIC_CMD);
+		writeb(0x60+PIC_CASCADE_IR, rm200_pic_master + PIC_CMD);
+	} else {
+		readb(rm200_pic_master + PIC_IMR);
+		writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
+		writeb(0x60+irq, rm200_pic_master + PIC_CMD);
+	}
+	spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
+	return;
+
+spurious_8259A_irq:
+	/*
+	 * this is the slow path - should happen rarely.
+	 */
+	if (sni_rm200_i8259A_irq_real(irq))
+		/*
+		 * oops, the IRQ _is_ in service according to the
+		 * 8259A - not spurious, go handle it.
+		 */
+		goto handle_real_irq;
+
+	{
+		static int spurious_irq_mask;
+		/*
+		 * At this point we can be sure the IRQ is spurious,
+		 * lets ACK and report it. [once per IRQ]
+		 */
+		if (!(spurious_irq_mask & irqmask)) {
+			printk(KERN_DEBUG
+			       "spurious RM200 8259A interrupt: IRQ%d.\n", irq);
+			spurious_irq_mask |= irqmask;
+		}
+		atomic_inc(&irq_err_count);
+		/*
+		 * Theoretically we do not have to handle this IRQ,
+		 * but in Linux this does not cause problems and is
+		 * simpler for us.
+		 */
+		goto handle_real_irq;
+	}
+}
+
+static struct irq_chip sni_rm200_i8259A_chip = {
+	.name		= "RM200-XT-PIC",
+	.mask		= sni_rm200_disable_8259A_irq,
+	.unmask		= sni_rm200_enable_8259A_irq,
+	.mask_ack	= sni_rm200_mask_and_ack_8259A,
+};
+
+/*
+ * Do the traditional i8259 interrupt polling thing.  This is for the few
+ * cases where no better interrupt acknowledge method is available and we
+ * absolutely must touch the i8259.
+ */
+static inline int sni_rm200_i8259_irq(void)
+{
+	int irq;
+
+	spin_lock(&sni_rm200_i8259A_lock);
+
+	/* Perform an interrupt acknowledge cycle on controller 1. */
+	writeb(0x0C, rm200_pic_master + PIC_CMD);	/* prepare for poll */
+	irq = readb(rm200_pic_master + PIC_CMD) & 7;
+	if (irq == PIC_CASCADE_IR) {
+		/*
+		 * Interrupt is cascaded so perform interrupt
+		 * acknowledge on controller 2.
+		 */
+		writeb(0x0C, rm200_pic_slave + PIC_CMD); /* prepare for poll */
+		irq = (readb(rm200_pic_slave + PIC_CMD) & 7) + 8;
+	}
+
+	if (unlikely(irq == 7)) {
+		/*
+		 * This may be a spurious interrupt.
+		 *
+		 * Read the interrupt status register (ISR). If the most
+		 * significant bit is not set then there is no valid
+		 * interrupt.
+		 */
+		writeb(0x0B, rm200_pic_master + PIC_ISR); /* ISR register */
+		if (~readb(rm200_pic_master + PIC_ISR) & 0x80)
+			irq = -1;
+	}
+
+	spin_unlock(&sni_rm200_i8259A_lock);
+
+	return likely(irq >= 0) ? irq + RM200_I8259A_IRQ_BASE : irq;
+}
+
+void sni_rm200_init_8259A(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
+
+	writeb(0xff, rm200_pic_master + PIC_IMR);
+	writeb(0xff, rm200_pic_slave + PIC_IMR);
+
+	writeb(0x11, rm200_pic_master + PIC_CMD);
+	writeb(0, rm200_pic_master + PIC_IMR);
+	writeb(1U << PIC_CASCADE_IR, rm200_pic_master + PIC_IMR);
+	writeb(MASTER_ICW4_DEFAULT, rm200_pic_master + PIC_IMR);
+	writeb(0x11, rm200_pic_slave + PIC_CMD);
+	writeb(8, rm200_pic_slave + PIC_IMR);
+	writeb(PIC_CASCADE_IR, rm200_pic_slave + PIC_IMR);
+	writeb(SLAVE_ICW4_DEFAULT, rm200_pic_slave + PIC_IMR);
+	udelay(100);		/* wait for 8259A to initialize */
+
+	writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
+	writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
+
+	spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
+}
+
+/*
+ * IRQ2 is cascade interrupt to second interrupt controller
+ */
+static struct irqaction sni_rm200_irq2 = {
+	no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL
+};
+
+static struct resource sni_rm200_pic1_resource = {
+	.name = "onboard ISA pic1",
+	.start = 0x16000020,
+	.end = 0x16000023,
+	.flags = IORESOURCE_BUSY
+};
+
+static struct resource sni_rm200_pic2_resource = {
+	.name = "onboard ISA pic2",
+	.start = 0x160000a0,
+	.end = 0x160000a3,
+	.flags = IORESOURCE_BUSY
+};
+
+/* ISA irq handler */
+static irqreturn_t sni_rm200_i8259A_irq_handler(int dummy, void *p)
+{
+	int irq;
+
+	irq = sni_rm200_i8259_irq();
+	if (unlikely(irq < 0))
+		return IRQ_NONE;
+
+	do_IRQ(irq);
+	return IRQ_HANDLED;
+}
+
+struct irqaction sni_rm200_i8259A_irq = {
+	.handler = sni_rm200_i8259A_irq_handler,
+	.name = "onboard ISA",
+	.flags = IRQF_SHARED
+};
+
+void __init sni_rm200_i8259_irqs(void)
+{
+	int i;
+
+	rm200_pic_master = ioremap_nocache(0x16000020, 4);
+	if (!rm200_pic_master)
+		return;
+	rm200_pic_slave = ioremap_nocache(0x160000a0, 4);
+	if (!rm200_pic_master) {
+		iounmap(rm200_pic_master);
+		return;
+	}
+
+	insert_resource(&iomem_resource, &sni_rm200_pic1_resource);
+	insert_resource(&iomem_resource, &sni_rm200_pic2_resource);
+
+	sni_rm200_init_8259A();
+
+	for (i = RM200_I8259A_IRQ_BASE; i < RM200_I8259A_IRQ_BASE + 16; i++)
+		set_irq_chip_and_handler(i, &sni_rm200_i8259A_chip,
+					 handle_level_irq);
+
+	setup_irq(RM200_I8259A_IRQ_BASE + PIC_CASCADE_IR, &sni_rm200_irq2);
+}
+
 
-#define SNI_RM200_INT_STAT_REG  0xbc000000
-#define SNI_RM200_INT_ENA_REG   0xbc080000
+#define SNI_RM200_INT_STAT_REG  CKSEG1ADDR(0xbc000000)
+#define SNI_RM200_INT_ENA_REG   CKSEG1ADDR(0xbc080000)
 
 #define SNI_RM200_INT_START  24
 #define SNI_RM200_INT_END    28
@@ -181,17 +483,17 @@ void __init sni_rm200_irq_init(void)
 
 	* (volatile u8 *)SNI_RM200_INT_ENA_REG = 0x1f;
 
+	sni_rm200_i8259_irqs();
 	mips_cpu_irq_init();
 	/* Actually we've got more interrupts to handle ...  */
 	for (i = SNI_RM200_INT_START; i <= SNI_RM200_INT_END; i++)
 		set_irq_chip(i, &rm200_irq_type);
 	sni_hwint = sni_rm200_hwint;
 	change_c0_status(ST0_IM, IE_IRQ0);
-	setup_irq(SNI_RM200_INT_START + 0, &sni_isa_irq);
+	setup_irq(SNI_RM200_INT_START + 0, &sni_rm200_i8259A_irq);
+	setup_irq(SNI_RM200_INT_START + 1, &sni_isa_irq);
 }
 
 void __init sni_rm200_init(void)
 {
-	set_io_port_base(SNI_PORT_BASE + 0x02000000);
-	ioport_resource.end += 0x02000000;
 }
diff --git a/arch/mips/sni/setup.c b/arch/mips/sni/setup.c
index e8b26bdee24c..5484e1c62054 100644
--- a/arch/mips/sni/setup.c
+++ b/arch/mips/sni/setup.c
@@ -19,11 +19,17 @@
 #include <asm/sgialib.h>
 #endif
 
+#ifdef CONFIG_SNIPROM
+#include <asm/mipsprom.h>
+#endif
+
+#include <asm/bootinfo.h>
 #include <asm/io.h>
 #include <asm/reboot.h>
 #include <asm/sni.h>
 
 unsigned int sni_brd_type;
+EXPORT_SYMBOL(sni_brd_type);
 
 extern void sni_machine_restart(char *command);
 extern void sni_machine_power_off(void);
@@ -47,20 +53,152 @@ static void __init sni_display_setup(void)
 #endif
 }
 
+static void __init sni_console_setup(void)
+{
+#ifndef CONFIG_ARC
+	char *ctype;
+	char *cdev;
+	char *baud;
+	int port;
+	static char options[8];
+
+	cdev = prom_getenv("console_dev");
+	if (strncmp(cdev, "tty", 3) == 0) {
+		ctype = prom_getenv("console");
+		switch (*ctype) {
+		default:
+		case 'l':
+			port = 0;
+			baud = prom_getenv("lbaud");
+			break;
+		case 'r':
+			port = 1;
+			baud = prom_getenv("rbaud");
+			break;
+		}
+		if (baud)
+			strcpy(options, baud);
+		if (strncmp(cdev, "tty552", 6) == 0)
+			add_preferred_console("ttyS", port,
+					      baud ? options : NULL);
+		else
+			add_preferred_console("ttySC", port,
+					      baud ? options : NULL);
+	}
+#endif
+}
+
+#ifdef DEBUG
+static void __init sni_idprom_dump(void)
+{
+	int	i;
+
+	pr_debug("SNI IDProm dump:\n");
+	for (i = 0; i < 256; i++) {
+		if (i%16 == 0)
+			pr_debug("%04x ", i);
+
+		printk("%02x ", *(unsigned char *) (SNI_IDPROM_BASE + i));
+
+		if (i % 16 == 15)
+			printk("\n");
+	}
+}
+#endif
 
 void __init plat_mem_setup(void)
 {
+	int cputype;
+
 	set_io_port_base(SNI_PORT_BASE);
 //	ioport_resource.end = sni_io_resource.end;
 
 	/*
 	 * Setup (E)ISA I/O memory access stuff
 	 */
-	isa_slot_offset = 0xb0000000;
+	isa_slot_offset = CKSEG1ADDR(0xb0000000);
 #ifdef CONFIG_EISA
 	EISA_bus = 1;
 #endif
 
+	sni_brd_type = *(unsigned char *)SNI_IDPROM_BRDTYPE;
+	cputype = *(unsigned char *)SNI_IDPROM_CPUTYPE;
+	switch (sni_brd_type) {
+	case SNI_BRD_TOWER_OASIC:
+		switch (cputype) {
+		case SNI_CPU_M8030:
+			system_type = "RM400-330";
+			break;
+		case SNI_CPU_M8031:
+			system_type = "RM400-430";
+			break;
+		case SNI_CPU_M8037:
+			system_type = "RM400-530";
+			break;
+		case SNI_CPU_M8034:
+			system_type = "RM400-730";
+			break;
+		default:
+			system_type = "RM400-xxx";
+			break;
+		}
+		break;
+	case SNI_BRD_MINITOWER:
+		switch (cputype) {
+		case SNI_CPU_M8021:
+		case SNI_CPU_M8043:
+			system_type = "RM400-120";
+			break;
+		case SNI_CPU_M8040:
+			system_type = "RM400-220";
+			break;
+		case SNI_CPU_M8053:
+			system_type = "RM400-225";
+			break;
+		case SNI_CPU_M8050:
+			system_type = "RM400-420";
+			break;
+		default:
+			system_type = "RM400-xxx";
+			break;
+		}
+		break;
+	case SNI_BRD_PCI_TOWER:
+		system_type = "RM400-Cxx";
+		break;
+	case SNI_BRD_RM200:
+		system_type = "RM200-xxx";
+		break;
+	case SNI_BRD_PCI_MTOWER:
+		system_type = "RM300-Cxx";
+		break;
+	case SNI_BRD_PCI_DESKTOP:
+		switch (read_c0_prid() & 0xff00) {
+		case PRID_IMP_R4600:
+		case PRID_IMP_R4700:
+			system_type = "RM200-C20";
+			break;
+		case PRID_IMP_R5000:
+			system_type = "RM200-C40";
+			break;
+		default:
+			system_type = "RM200-Cxx";
+			break;
+		}
+		break;
+	case SNI_BRD_PCI_TOWER_CPLUS:
+		system_type = "RM400-Exx";
+		break;
+	case SNI_BRD_PCI_MTOWER_CPLUS:
+		system_type = "RM300-Exx";
+		break;
+	}
+	pr_debug("Found SNI brdtype %02x name %s\n", sni_brd_type, system_type);
+
+#ifdef DEBUG
+	sni_idprom_dump();
+#endif
+
 	switch (sni_brd_type) {
 	case SNI_BRD_10:
 	case SNI_BRD_10NEW:
@@ -89,9 +227,10 @@ void __init plat_mem_setup(void)
 	pm_power_off = sni_machine_power_off;
 
 	sni_display_setup();
+	sni_console_setup();
 }
 
-#if CONFIG_PCI
+#ifdef CONFIG_PCI
 
 #include <linux/pci.h>
 #include <video/vga.h>
diff --git a/arch/mips/sni/sniprom.c b/arch/mips/sni/sniprom.c
deleted file mode 100644
index eff4b89d7b75..000000000000
--- a/arch/mips/sni/sniprom.c
+++ /dev/null
@@ -1,251 +0,0 @@
-/*
- * Big Endian PROM code for SNI RM machines
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2005-2006 Florian Lohoff (flo@rfc822.org)
- * Copyright (C) 2005-2006 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
- */
-
-#define DEBUG
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/console.h>
-
-#include <asm/addrspace.h>
-#include <asm/sni.h>
-#include <asm/mipsprom.h>
-#include <asm/mipsregs.h>
-#include <asm/bootinfo.h>
-
-/* special SNI prom calls */
-/*
- * This does not exist in all proms - SINIX compares
- * the prom env variable "version" against "2.0008"
- * or greater. If lesser it tries to probe interesting
- * registers
- */
-#define PROM_GET_MEMCONF	58
-
-#define PROM_VEC		(u64 *)CKSEG1ADDR(0x1fc00000)
-#define PROM_ENTRY(x)		(PROM_VEC + (x))
-
-
-static int *(*__prom_putchar)(int)        = (int *(*)(int))PROM_ENTRY(PROM_PUTCHAR);
-
-void prom_putchar(char c)
-{
-	__prom_putchar(c);
-}
-
-static char *(*__prom_getenv)(char *)     = (char *(*)(char *))PROM_ENTRY(PROM_GETENV);
-static void (*__prom_get_memconf)(void *) = (void (*)(void *))PROM_ENTRY(PROM_GET_MEMCONF);
-
-char *prom_getenv(char *s)
-{
-	return __prom_getenv(s);
-}
-
-void __init prom_free_prom_memory(void)
-{
-}
-
-/*
- * /proc/cpuinfo system type
- *
- */
-static const char *systype = "Unknown";
-const char *get_system_type(void)
-{
-	return systype;
-}
-
-#define SNI_IDPROM_BASE                0xbff00000
-#define SNI_IDPROM_MEMSIZE             (SNI_IDPROM_BASE+0x28)  /* Memsize in 16MB quantities */
-#define SNI_IDPROM_BRDTYPE             (SNI_IDPROM_BASE+0x29)  /* Board Type */
-#define SNI_IDPROM_CPUTYPE             (SNI_IDPROM_BASE+0x30)  /* CPU Type */
-
-#define SNI_IDPROM_SIZE	0x1000
-
-#ifdef DEBUG
-static void __init sni_idprom_dump(void)
-{
-	int	i;
-
-	pr_debug("SNI IDProm dump:\n");
-	for (i = 0; i < 256; i++) {
-		if (i%16 == 0)
-			pr_debug("%04x ", i);
-
-		printk("%02x ", *(unsigned char *) (SNI_IDPROM_BASE + i));
-
-		if (i % 16 == 15)
-			printk("\n");
-	}
-}
-#endif
-
-static void __init sni_mem_init(void )
-{
-	int i, memsize;
-	struct membank {
-	        u32		size;
-	        u32		base;
-	        u32		size2;
-	        u32		pad1;
-	        u32		pad2;
-	} memconf[8];
-
-	/* MemSIZE from prom in 16MByte chunks */
-	memsize = *((unsigned char *) SNI_IDPROM_MEMSIZE) * 16;
-
-	pr_debug("IDProm memsize: %lu MByte\n", memsize);
-
-	/* get memory bank layout from prom */
-	__prom_get_memconf(&memconf);
-
-	pr_debug("prom_get_mem_conf memory configuration:\n");
-	for (i = 0;i < 8 && memconf[i].size; i++) {
-		if (sni_brd_type == SNI_BRD_PCI_TOWER ||
-		    sni_brd_type == SNI_BRD_PCI_TOWER_CPLUS) {
-			if (memconf[i].base >= 0x20000000 &&
-			    memconf[i].base <  0x30000000) {
-				memconf[i].base -= 0x20000000;
-			}
-	}
-		pr_debug("Bank%d: %08x @ %08x\n", i,
-			memconf[i].size, memconf[i].base);
-		add_memory_region(memconf[i].base, memconf[i].size, BOOT_MEM_RAM);
-	}
-}
-
-static void __init sni_console_setup(void)
-{
-	char *ctype;
-	char *cdev;
-	char *baud;
-	int port;
-	static char options[8];
-
-	cdev = prom_getenv("console_dev");
-	if (strncmp (cdev, "tty", 3) == 0) {
-		ctype = prom_getenv("console");
-		switch (*ctype) {
-		default:
-		case 'l':
-	                port = 0;
-	                baud = prom_getenv("lbaud");
-	                break;
-		case 'r':
-	                port = 1;
-	                baud = prom_getenv("rbaud");
-	                break;
-		}
-		if (baud)
-			strcpy(options, baud);
-		if (strncmp (cdev, "tty552", 6) == 0)
-			add_preferred_console("ttyS", port, baud ? options : NULL);
-		else
-			add_preferred_console("ttySC", port, baud ? options : NULL);
-	}
-}
-
-void __init prom_init(void)
-{
-	int argc = fw_arg0;
-	char **argv = (void *)fw_arg1;
-	int i;
-	int cputype;
-
-	sni_brd_type = *(unsigned char *)SNI_IDPROM_BRDTYPE;
-	cputype = *(unsigned char *)SNI_IDPROM_CPUTYPE;
-	switch (sni_brd_type) {
-	case SNI_BRD_TOWER_OASIC:
-	        switch (cputype) {
-		case SNI_CPU_M8030:
-		        systype = "RM400-330";
-		        break;
-		case SNI_CPU_M8031:
-		        systype = "RM400-430";
-		        break;
-		case SNI_CPU_M8037:
-		        systype = "RM400-530";
-		        break;
-		case SNI_CPU_M8034:
-		        systype = "RM400-730";
-		        break;
-		default:
-			systype = "RM400-xxx";
-			break;
-		}
-	        break;
-	case SNI_BRD_MINITOWER:
-	        switch (cputype) {
-		case SNI_CPU_M8021:
-		case SNI_CPU_M8043:
-		        systype = "RM400-120";
-		        break;
-		case SNI_CPU_M8040:
-		        systype = "RM400-220";
-		        break;
-		case SNI_CPU_M8053:
-		        systype = "RM400-225";
-		        break;
-		case SNI_CPU_M8050:
-		        systype = "RM400-420";
-		        break;
-		default:
-			systype = "RM400-xxx";
-			break;
-		}
-	        break;
-	case SNI_BRD_PCI_TOWER:
-	        systype = "RM400-Cxx";
-	        break;
-	case SNI_BRD_RM200:
-	        systype = "RM200-xxx";
-	        break;
-	case SNI_BRD_PCI_MTOWER:
-	        systype = "RM300-Cxx";
-	        break;
-	case SNI_BRD_PCI_DESKTOP:
-	        switch (read_c0_prid() & 0xff00) {
-		case PRID_IMP_R4600:
-		case PRID_IMP_R4700:
-		        systype = "RM200-C20";
-		        break;
-		case PRID_IMP_R5000:
-		        systype = "RM200-C40";
-		        break;
-		default:
-		        systype = "RM200-Cxx";
-		        break;
-		}
-	        break;
-	case SNI_BRD_PCI_TOWER_CPLUS:
-	        systype = "RM400-Exx";
-	        break;
-	case SNI_BRD_PCI_MTOWER_CPLUS:
-	        systype = "RM300-Exx";
-	        break;
-	}
-	pr_debug("Found SNI brdtype %02x name %s\n", sni_brd_type, systype);
-
-#ifdef DEBUG
-	sni_idprom_dump();
-#endif
-	sni_mem_init();
-	sni_console_setup();
-
-	/* copy prom cmdline parameters to kernel cmdline */
-	for (i = 1; i < argc; i++) {
-		strcat(arcs_cmdline, argv[i]);
-		if (i < (argc - 1))
-			strcat(arcs_cmdline, " ");
-	}
-}
-
diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index 6f339af08d22..796e3ce28720 100644
--- a/arch/mips/sni/time.c
+++ b/arch/mips/sni/time.c
@@ -178,6 +178,7 @@ void __init plat_time_init(void)
 		sni_a20r_timer_setup();
 		break;
 	}
+	setup_pit_timer();
 }
 
 unsigned long read_persistent_clock(void)
diff --git a/include/asm-mips/bootinfo.h b/include/asm-mips/bootinfo.h
index 8e9bb16f0aa2..e031bdff9920 100644
--- a/include/asm-mips/bootinfo.h
+++ b/include/asm-mips/bootinfo.h
@@ -96,6 +96,7 @@
 
 #define CL_SIZE			COMMAND_LINE_SIZE
 
+extern char *system_type;
 const char *get_system_type(void);
 
 extern unsigned long mips_machtype;
diff --git a/include/asm-mips/mipsprom.h b/include/asm-mips/mipsprom.h
index ce7cff7f1e8e..146d41b67adc 100644
--- a/include/asm-mips/mipsprom.h
+++ b/include/asm-mips/mipsprom.h
@@ -71,4 +71,6 @@
 #define PROM_NV_GET		53	/* XXX */
 #define PROM_NV_SET		54	/* XXX */
 
+extern char *prom_getenv(char *);
+
 #endif /* __ASM_MIPS_PROM_H */
diff --git a/include/asm-mips/sni.h b/include/asm-mips/sni.h
index af081457f847..e716447e5e03 100644
--- a/include/asm-mips/sni.h
+++ b/include/asm-mips/sni.h
@@ -35,23 +35,23 @@ extern unsigned int sni_brd_type;
 #define SNI_CPU_M8050           0x0b
 #define SNI_CPU_M8053           0x0d
 
-#define SNI_PORT_BASE		0xb4000000
+#define SNI_PORT_BASE		CKSEG1ADDR(0xb4000000)
 
 #ifndef __MIPSEL__
 /*
  * ASIC PCI registers for big endian configuration.
  */
-#define PCIMT_UCONF		0xbfff0004
-#define PCIMT_IOADTIMEOUT2	0xbfff000c
-#define PCIMT_IOMEMCONF		0xbfff0014
-#define PCIMT_IOMMU		0xbfff001c
-#define PCIMT_IOADTIMEOUT1	0xbfff0024
-#define PCIMT_DMAACCESS		0xbfff002c
-#define PCIMT_DMAHIT		0xbfff0034
-#define PCIMT_ERRSTATUS		0xbfff003c
-#define PCIMT_ERRADDR		0xbfff0044
-#define PCIMT_SYNDROME		0xbfff004c
-#define PCIMT_ITPEND		0xbfff0054
+#define PCIMT_UCONF		CKSEG1ADDR(0xbfff0004)
+#define PCIMT_IOADTIMEOUT2	CKSEG1ADDR(0xbfff000c)
+#define PCIMT_IOMEMCONF		CKSEG1ADDR(0xbfff0014)
+#define PCIMT_IOMMU		CKSEG1ADDR(0xbfff001c)
+#define PCIMT_IOADTIMEOUT1	CKSEG1ADDR(0xbfff0024)
+#define PCIMT_DMAACCESS		CKSEG1ADDR(0xbfff002c)
+#define PCIMT_DMAHIT		CKSEG1ADDR(0xbfff0034)
+#define PCIMT_ERRSTATUS		CKSEG1ADDR(0xbfff003c)
+#define PCIMT_ERRADDR		CKSEG1ADDR(0xbfff0044)
+#define PCIMT_SYNDROME		CKSEG1ADDR(0xbfff004c)
+#define PCIMT_ITPEND		CKSEG1ADDR(0xbfff0054)
 #define  IT_INT2		0x01
 #define  IT_INTD		0x02
 #define  IT_INTC		0x04
@@ -60,32 +60,32 @@ extern unsigned int sni_brd_type;
 #define  IT_EISA		0x20
 #define  IT_SCSI		0x40
 #define  IT_ETH			0x80
-#define PCIMT_IRQSEL		0xbfff005c
-#define PCIMT_TESTMEM		0xbfff0064
-#define PCIMT_ECCREG		0xbfff006c
-#define PCIMT_CONFIG_ADDRESS	0xbfff0074
-#define PCIMT_ASIC_ID		0xbfff007c	/* read */
-#define PCIMT_SOFT_RESET	0xbfff007c	/* write */
-#define PCIMT_PIA_OE		0xbfff0084
-#define PCIMT_PIA_DATAOUT	0xbfff008c
-#define PCIMT_PIA_DATAIN	0xbfff0094
-#define PCIMT_CACHECONF		0xbfff009c
-#define PCIMT_INVSPACE		0xbfff00a4
+#define PCIMT_IRQSEL		CKSEG1ADDR(0xbfff005c)
+#define PCIMT_TESTMEM		CKSEG1ADDR(0xbfff0064)
+#define PCIMT_ECCREG		CKSEG1ADDR(0xbfff006c)
+#define PCIMT_CONFIG_ADDRESS	CKSEG1ADDR(0xbfff0074)
+#define PCIMT_ASIC_ID		CKSEG1ADDR(0xbfff007c)	/* read */
+#define PCIMT_SOFT_RESET	CKSEG1ADDR(0xbfff007c)	/* write */
+#define PCIMT_PIA_OE		CKSEG1ADDR(0xbfff0084)
+#define PCIMT_PIA_DATAOUT	CKSEG1ADDR(0xbfff008c)
+#define PCIMT_PIA_DATAIN	CKSEG1ADDR(0xbfff0094)
+#define PCIMT_CACHECONF		CKSEG1ADDR(0xbfff009c)
+#define PCIMT_INVSPACE		CKSEG1ADDR(0xbfff00a4)
 #else
 /*
  * ASIC PCI registers for little endian configuration.
  */
-#define PCIMT_UCONF		0xbfff0000
-#define PCIMT_IOADTIMEOUT2	0xbfff0008
-#define PCIMT_IOMEMCONF		0xbfff0010
-#define PCIMT_IOMMU		0xbfff0018
-#define PCIMT_IOADTIMEOUT1	0xbfff0020
-#define PCIMT_DMAACCESS		0xbfff0028
-#define PCIMT_DMAHIT		0xbfff0030
-#define PCIMT_ERRSTATUS		0xbfff0038
-#define PCIMT_ERRADDR		0xbfff0040
-#define PCIMT_SYNDROME		0xbfff0048
-#define PCIMT_ITPEND		0xbfff0050
+#define PCIMT_UCONF		CKSEG1ADDR(0xbfff0000)
+#define PCIMT_IOADTIMEOUT2	CKSEG1ADDR(0xbfff0008)
+#define PCIMT_IOMEMCONF		CKSEG1ADDR(0xbfff0010)
+#define PCIMT_IOMMU		CKSEG1ADDR(0xbfff0018)
+#define PCIMT_IOADTIMEOUT1	CKSEG1ADDR(0xbfff0020)
+#define PCIMT_DMAACCESS		CKSEG1ADDR(0xbfff0028)
+#define PCIMT_DMAHIT		CKSEG1ADDR(0xbfff0030)
+#define PCIMT_ERRSTATUS		CKSEG1ADDR(0xbfff0038)
+#define PCIMT_ERRADDR		CKSEG1ADDR(0xbfff0040)
+#define PCIMT_SYNDROME		CKSEG1ADDR(0xbfff0048)
+#define PCIMT_ITPEND		CKSEG1ADDR(0xbfff0050)
 #define  IT_INT2		0x01
 #define  IT_INTD		0x02
 #define  IT_INTC		0x04
@@ -94,20 +94,20 @@ extern unsigned int sni_brd_type;
 #define  IT_EISA		0x20
 #define  IT_SCSI		0x40
 #define  IT_ETH			0x80
-#define PCIMT_IRQSEL		0xbfff0058
-#define PCIMT_TESTMEM		0xbfff0060
-#define PCIMT_ECCREG		0xbfff0068
-#define PCIMT_CONFIG_ADDRESS	0xbfff0070
-#define PCIMT_ASIC_ID		0xbfff0078	/* read */
-#define PCIMT_SOFT_RESET	0xbfff0078	/* write */
-#define PCIMT_PIA_OE		0xbfff0080
-#define PCIMT_PIA_DATAOUT	0xbfff0088
-#define PCIMT_PIA_DATAIN	0xbfff0090
-#define PCIMT_CACHECONF		0xbfff0098
-#define PCIMT_INVSPACE		0xbfff00a0
+#define PCIMT_IRQSEL		CKSEG1ADDR(0xbfff0058)
+#define PCIMT_TESTMEM		CKSEG1ADDR(0xbfff0060)
+#define PCIMT_ECCREG		CKSEG1ADDR(0xbfff0068)
+#define PCIMT_CONFIG_ADDRESS	CKSEG1ADDR(0xbfff0070)
+#define PCIMT_ASIC_ID		CKSEG1ADDR(0xbfff0078)	/* read */
+#define PCIMT_SOFT_RESET	CKSEG1ADDR(0xbfff0078)	/* write */
+#define PCIMT_PIA_OE		CKSEG1ADDR(0xbfff0080)
+#define PCIMT_PIA_DATAOUT	CKSEG1ADDR(0xbfff0088)
+#define PCIMT_PIA_DATAIN	CKSEG1ADDR(0xbfff0090)
+#define PCIMT_CACHECONF		CKSEG1ADDR(0xbfff0098)
+#define PCIMT_INVSPACE		CKSEG1ADDR(0xbfff00a0)
 #endif
 
-#define PCIMT_PCI_CONF		0xbfff0100
+#define PCIMT_PCI_CONF		CKSEG1ADDR(0xbfff0100)
 
 /*
  * Data port for the PCI bus in IO space
@@ -117,34 +117,34 @@ extern unsigned int sni_brd_type;
 /*
  * Board specific registers
  */
-#define PCIMT_CSMSR		0xbfd00000
-#define PCIMT_CSSWITCH		0xbfd10000
-#define PCIMT_CSITPEND		0xbfd20000
-#define PCIMT_AUTO_PO_EN	0xbfd30000
-#define PCIMT_CLR_TEMP		0xbfd40000
-#define PCIMT_AUTO_PO_DIS	0xbfd50000
-#define PCIMT_EXMSR		0xbfd60000
-#define PCIMT_UNUSED1		0xbfd70000
-#define PCIMT_CSWCSM		0xbfd80000
-#define PCIMT_UNUSED2		0xbfd90000
-#define PCIMT_CSLED		0xbfda0000
-#define PCIMT_CSMAPISA		0xbfdb0000
-#define PCIMT_CSRSTBP		0xbfdc0000
-#define PCIMT_CLRPOFF		0xbfdd0000
-#define PCIMT_CSTIMER		0xbfde0000
-#define PCIMT_PWDN		0xbfdf0000
+#define PCIMT_CSMSR		CKSEG1ADDR(0xbfd00000)
+#define PCIMT_CSSWITCH		CKSEG1ADDR(0xbfd10000)
+#define PCIMT_CSITPEND		CKSEG1ADDR(0xbfd20000)
+#define PCIMT_AUTO_PO_EN	CKSEG1ADDR(0xbfd30000)
+#define PCIMT_CLR_TEMP		CKSEG1ADDR(0xbfd40000)
+#define PCIMT_AUTO_PO_DIS	CKSEG1ADDR(0xbfd50000)
+#define PCIMT_EXMSR		CKSEG1ADDR(0xbfd60000)
+#define PCIMT_UNUSED1		CKSEG1ADDR(0xbfd70000)
+#define PCIMT_CSWCSM		CKSEG1ADDR(0xbfd80000)
+#define PCIMT_UNUSED2		CKSEG1ADDR(0xbfd90000)
+#define PCIMT_CSLED		CKSEG1ADDR(0xbfda0000)
+#define PCIMT_CSMAPISA		CKSEG1ADDR(0xbfdb0000)
+#define PCIMT_CSRSTBP		CKSEG1ADDR(0xbfdc0000)
+#define PCIMT_CLRPOFF		CKSEG1ADDR(0xbfdd0000)
+#define PCIMT_CSTIMER		CKSEG1ADDR(0xbfde0000)
+#define PCIMT_PWDN		CKSEG1ADDR(0xbfdf0000)
 
 /*
  * A20R based boards
  */
-#define A20R_PT_CLOCK_BASE      0xbc040000
-#define A20R_PT_TIM0_ACK        0xbc050000
-#define A20R_PT_TIM1_ACK        0xbc060000
+#define A20R_PT_CLOCK_BASE      CKSEG1ADDR(0xbc040000)
+#define A20R_PT_TIM0_ACK        CKSEG1ADDR(0xbc050000)
+#define A20R_PT_TIM1_ACK        CKSEG1ADDR(0xbc060000)
 
 #define SNI_A20R_IRQ_BASE       MIPS_CPU_IRQ_BASE
 #define SNI_A20R_IRQ_TIMER      (SNI_A20R_IRQ_BASE+5)
 
-#define SNI_PCIT_INT_REG        0xbfff000c
+#define SNI_PCIT_INT_REG        CKSEG1ADDR(0xbfff000c)
 
 #define SNI_PCIT_INT_START      24
 #define SNI_PCIT_INT_END        30
@@ -186,10 +186,30 @@ extern unsigned int sni_brd_type;
 /*
  * Base address for the mapped 16mb EISA bus segment.
  */
-#define PCIMT_EISA_BASE		0xb0000000
+#define PCIMT_EISA_BASE		CKSEG1ADDR(0xb0000000)
 
 /* PCI EISA Interrupt acknowledge  */
-#define PCIMT_INT_ACKNOWLEDGE	0xba000000
+#define PCIMT_INT_ACKNOWLEDGE	CKSEG1ADDR(0xba000000)
+
+/*
+ *  SNI ID PROM
+ *
+ * SNI_IDPROM_MEMSIZE  Memsize in 16MB quantities
+ * SNI_IDPROM_BRDTYPE  Board Type
+ * SNI_IDPROM_CPUTYPE  CPU Type on RM400
+ */
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#define __SNI_END 0
+#endif
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+#define __SNI_END 3
+#endif
+#define SNI_IDPROM_BASE        CKSEG1ADDR(0x1ff00000)
+#define SNI_IDPROM_MEMSIZE     (SNI_IDPROM_BASE + (0x28 ^ __SNI_END))
+#define SNI_IDPROM_BRDTYPE     (SNI_IDPROM_BASE + (0x29 ^ __SNI_END))
+#define SNI_IDPROM_CPUTYPE     (SNI_IDPROM_BASE + (0x30 ^ __SNI_END))
+
+#define SNI_IDPROM_SIZE	0x1000
 
 /* board specific init functions */
 extern void sni_a20r_init(void);
@@ -207,6 +227,9 @@ extern void sni_pcimt_irq_init(void);
 /* timer inits */
 extern void sni_cpu_time_init(void);
 
+/* eisa init for RM200/400 */
+extern int sni_eisa_root_init(void);
+
 /* common irq stuff */
 extern void (*sni_hwint)(void);
 extern struct irqaction sni_isa_irq;
-- 
cgit v1.2.3-59-g8ed1b


From 39a51109dd14001185b0cd122ca46cce1d0795bf Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:14:59 +0000
Subject: [MIPS] Extend performance counter event field.

The latest draft version of the MIPS Architecture Specification extends the
6 bit event field by adding a directly adjacent 4-bit EventExt field for a
total of 10 bits.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/oprofile/op_model_mipsxx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index bdfa07aecd97..ccbea229a0e6 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -19,7 +19,7 @@
 #define M_PERFCTL_SUPERVISOR		(1UL      <<  2)
 #define M_PERFCTL_USER			(1UL      <<  3)
 #define M_PERFCTL_INTERRUPT_ENABLE	(1UL      <<  4)
-#define M_PERFCTL_EVENT(event)		(((event) & 0x3f)  << 5)
+#define M_PERFCTL_EVENT(event)		(((event) & 0x3ff)  << 5)
 #define M_PERFCTL_VPEID(vpe)		((vpe)    << 16)
 #define M_PERFCTL_MT_EN(filter)		((filter) << 20)
 #define    M_TC_EN_ALL			M_PERFCTL_MT_EN(0)
-- 
cgit v1.2.3-59-g8ed1b


From fa71c96002d1b02cd1ba1a4477d4b8ad95b587f9 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:15:00 +0000
Subject: [MIPS] Altas, Malta: Switch boot file format to raw.

A raw binary boots about twice as fast as SREC.

The possibility to generate SREC binaries remains by simply using the
vmlinux.srec target but seems only useful for the probably hypothetical
case where one of these systems is booted over a serial interface.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig  | 2 ++
 arch/mips/Makefile | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index d2d9cd8e4912..a9bfaca95806 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -190,6 +190,7 @@ config LEMOTE_FULONG
 config MIPS_ATLAS
 	bool "MIPS Atlas board"
 	select BOOT_ELF32
+	select BOOT_RAW
 	select CEVT_R4K
 	select CSRC_R4K
 	select DMA_NONCOHERENT
@@ -222,6 +223,7 @@ config MIPS_MALTA
 	bool "MIPS Malta board"
 	select ARCH_MAY_HAVE_PC_FDC
 	select BOOT_ELF32
+	select BOOT_RAW
 	select CEVT_R4K
 	select CSRC_R4K
 	select DMA_NONCOHERENT
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 2df68cd0ed40..b96af0669513 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -314,7 +314,7 @@ core-$(CONFIG_MIPS_ATLAS)	+= arch/mips/mips-boards/atlas/
 cflags-$(CONFIG_MIPS_ATLAS)	+= -Iinclude/asm-mips/mach-atlas
 cflags-$(CONFIG_MIPS_ATLAS)	+= -Iinclude/asm-mips/mach-mips
 load-$(CONFIG_MIPS_ATLAS)	+= 0xffffffff80100000
-all-$(CONFIG_MIPS_ATLAS)	:= vmlinux.srec
+all-$(CONFIG_MIPS_ATLAS)	:= vmlinux.bin
 
 #
 # MIPS Malta board
@@ -322,7 +322,7 @@ all-$(CONFIG_MIPS_ATLAS)	:= vmlinux.srec
 core-$(CONFIG_MIPS_MALTA)	+= arch/mips/mips-boards/malta/
 cflags-$(CONFIG_MIPS_MALTA)	+= -Iinclude/asm-mips/mach-mips
 load-$(CONFIG_MIPS_MALTA)	+= 0xffffffff80100000
-all-$(CONFIG_MIPS_MALTA)	:= vmlinux.srec
+all-$(CONFIG_MIPS_MALTA)	:= vmlinux.bin
 
 #
 # MIPS SEAD board
-- 
cgit v1.2.3-59-g8ed1b


From c9662341f8a09cffd7234a89cc066c342fe343bf Mon Sep 17 00:00:00 2001
From: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Date: Sun, 9 Dec 2007 21:19:36 +0900
Subject: [MIPS] time: remove unused mips_timer_state()

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/dec/time.c    | 1 -
 arch/mips/kernel/time.c | 2 --
 include/asm-mips/time.h | 9 +--------
 3 files changed, 1 insertion(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/dec/time.c b/arch/mips/dec/time.c
index 820e5331205f..60349062595a 100644
--- a/arch/mips/dec/time.c
+++ b/arch/mips/dec/time.c
@@ -161,7 +161,6 @@ static cycle_t dec_ioasic_hpt_read(void)
 
 void __init plat_time_init(void)
 {
-	mips_timer_state = dec_timer_state;
 	mips_timer_ack = dec_timer_ack;
 
 	if (!cpu_has_counter && IOASIC)
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index 2995be1ab3ca..9f85d4cecc5b 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -50,8 +50,6 @@ int update_persistent_clock(struct timespec now)
 	return rtc_mips_set_mmss(now.tv_sec);
 }
 
-int (*mips_timer_state)(void);
-
 int null_perf_irq(void)
 {
 	return 0;
diff --git a/include/asm-mips/time.h b/include/asm-mips/time.h
index 7717934f94c3..a8fd16e1981f 100644
--- a/include/asm-mips/time.h
+++ b/include/asm-mips/time.h
@@ -30,12 +30,6 @@ extern spinlock_t rtc_lock;
 extern int rtc_mips_set_time(unsigned long);
 extern int rtc_mips_set_mmss(unsigned long);
 
-/*
- * Timer interrupt functions.
- * mips_timer_state is needed for high precision timer calibration.
- */
-extern int (*mips_timer_state)(void);
-
 /*
  * board specific routines required by time_init().
  */
@@ -43,8 +37,7 @@ extern void plat_time_init(void);
 
 /*
  * mips_hpt_frequency - must be set if you intend to use an R4k-compatible
- * counter as a timer interrupt source; otherwise it can be set up
- * automagically with an aid of mips_timer_state.
+ * counter as a timer interrupt source.
  */
 extern unsigned int mips_hpt_frequency;
 
-- 
cgit v1.2.3-59-g8ed1b


From 991f8b6ac5a7284612679f4a095578b460555e8f Mon Sep 17 00:00:00 2001
From: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Date: Wed, 12 Dec 2007 22:11:09 +0900
Subject: [MIPS] move vr41xx_calculate_clock_frequency() to plat_time_init()

Moved vr41xx_calculate_clock_frequency() to plat_time_init().
This function relates to the timer function.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/vr41xx/common/init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/vr41xx/common/init.c b/arch/mips/vr41xx/common/init.c
index 8d760df686c4..76d4b5ed3fc0 100644
--- a/arch/mips/vr41xx/common/init.c
+++ b/arch/mips/vr41xx/common/init.c
@@ -40,6 +40,8 @@ void __init plat_time_init(void)
 {
 	unsigned long tclock;
 
+	vr41xx_calculate_clock_frequency();
+
 	tclock = vr41xx_get_tclock_frequency();
 	if (current_cpu_data.processor_id == PRID_VR4131_REV2_0 ||
 	    current_cpu_data.processor_id == PRID_VR4131_REV2_1)
@@ -50,8 +52,6 @@ void __init plat_time_init(void)
 
 void __init plat_mem_setup(void)
 {
-	vr41xx_calculate_clock_frequency();
-
 	iomem_resource_init();
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 71466dd477c7a67d188d1d8310c7016a88531a04 Mon Sep 17 00:00:00 2001
From: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Date: Wed, 12 Dec 2007 22:20:19 +0900
Subject: [MIPS] remove unneeded button check for reset

Removed unneeded button check for reset.
Because, the Cobalt has power switch.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/cobalt/reset.c              | 21 ++-------------------
 include/asm-mips/mach-cobalt/cobalt.h | 15 +--------------
 2 files changed, 3 insertions(+), 33 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/cobalt/reset.c b/arch/mips/cobalt/reset.c
index 71eb4ccc4bc1..c3d1baa5bcf1 100644
--- a/arch/mips/cobalt/reset.c
+++ b/arch/mips/cobalt/reset.c
@@ -10,7 +10,6 @@
  */
 #include <linux/init.h>
 #include <linux/io.h>
-#include <linux/jiffies.h>
 #include <linux/leds.h>
 
 #include <cobalt.h>
@@ -29,29 +28,13 @@ device_initcall(ledtrig_power_off_init);
 
 void cobalt_machine_halt(void)
 {
-	int state, last, diff;
-	unsigned long mark;
-
 	/*
 	 * turn on power off LED on RaQ
-	 *
-	 * restart if ENTER and SELECT are pressed
 	 */
-
-	last = COBALT_KEY_PORT;
-
 	led_trigger_event(power_off_led_trigger, LED_FULL);
 
-	for (state = 0;;) {
-		diff = COBALT_KEY_PORT ^ last;
-		last ^= diff;
-
-		if((diff & (COBALT_KEY_ENTER | COBALT_KEY_SELECT)) && !(~last & (COBALT_KEY_ENTER | COBALT_KEY_SELECT)))
-			writeb(RESET, RESET_PORT);
-
-		for (mark = jiffies; jiffies - mark < HZ;)
-			;
-	}
+	local_irq_disable();
+	while (1) ;
 }
 
 void cobalt_machine_restart(char *command)
diff --git a/include/asm-mips/mach-cobalt/cobalt.h b/include/asm-mips/mach-cobalt/cobalt.h
index a79e7caf3a86..5b9fce73f11d 100644
--- a/include/asm-mips/mach-cobalt/cobalt.h
+++ b/include/asm-mips/mach-cobalt/cobalt.h
@@ -1,5 +1,5 @@
 /*
- * Lowlevel hardware stuff for the MIPS based Cobalt microservers.
+ * The Cobalt board ID information.
  *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
@@ -12,9 +12,6 @@
 #ifndef __ASM_COBALT_H
 #define __ASM_COBALT_H
 
-/*
- * The Cobalt board ID information.
- */
 extern int cobalt_board_id;
 
 #define COBALT_BRD_ID_QUBE1    0x3
@@ -22,14 +19,4 @@ extern int cobalt_board_id;
 #define COBALT_BRD_ID_QUBE2    0x5
 #define COBALT_BRD_ID_RAQ2     0x6
 
-#define COBALT_KEY_PORT		((~*(volatile unsigned int *) CKSEG1ADDR(0x1d000000) >> 24) & COBALT_KEY_MASK)
-# define COBALT_KEY_CLEAR	(1 << 1)
-# define COBALT_KEY_LEFT	(1 << 2)
-# define COBALT_KEY_UP		(1 << 3)
-# define COBALT_KEY_DOWN	(1 << 4)
-# define COBALT_KEY_RIGHT	(1 << 5)
-# define COBALT_KEY_ENTER	(1 << 6)
-# define COBALT_KEY_SELECT	(1 << 7)
-# define COBALT_KEY_MASK	0xfe
-
 #endif /* __ASM_COBALT_H */
-- 
cgit v1.2.3-59-g8ed1b


From 167da469e521ec608f632137a63c827f175e2679 Mon Sep 17 00:00:00 2001
From: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Date: Wed, 12 Dec 2007 22:23:13 +0900
Subject: [MIPS] add cpu_wait() to machine_halt()

Added cpu_wait() to machine_halt().
For the power reduction in halt.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/cobalt/reset.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/mips/cobalt/reset.c b/arch/mips/cobalt/reset.c
index c3d1baa5bcf1..516b4428df4e 100644
--- a/arch/mips/cobalt/reset.c
+++ b/arch/mips/cobalt/reset.c
@@ -12,6 +12,8 @@
 #include <linux/io.h>
 #include <linux/leds.h>
 
+#include <asm/processor.h>
+
 #include <cobalt.h>
 
 #define RESET_PORT	((void __iomem *)CKSEG1ADDR(0x1c000000))
@@ -34,7 +36,10 @@ void cobalt_machine_halt(void)
 	led_trigger_event(power_off_led_trigger, LED_FULL);
 
 	local_irq_disable();
-	while (1) ;
+	while (1) {
+		if (cpu_wait)
+			cpu_wait();
+	}
 }
 
 void cobalt_machine_restart(char *command)
-- 
cgit v1.2.3-59-g8ed1b


From 9c746edb35c9800e2ad9f64b5d96d0732c42b74b Mon Sep 17 00:00:00 2001
From: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Date: Wed, 12 Dec 2007 22:39:54 +0900
Subject: [MIPS] move the eXcite local config to excitedirectory

Moved the eXcite local config to excite directory.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig               | 11 +----------
 arch/mips/basler/excite/Kconfig |  9 +++++++++
 2 files changed, 10 insertions(+), 10 deletions(-)
 create mode 100644 arch/mips/basler/excite/Kconfig

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index a9bfaca95806..ff9cc18d456a 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -37,16 +37,6 @@ config BASLER_EXCITE
 	  The eXcite is a smart camera platform manufactured by
 	  Basler Vision Technologies AG.
 
-config BASLER_EXCITE_PROTOTYPE
-	bool "Support for pre-release units"
-	depends on BASLER_EXCITE
-	default n
-	help
-	  Pre-series (prototype) units are different from later ones in
-	  some ways. Select this option if you have one of these. Please
-	  note that a kernel built with this option selected will not be
-	  able to run on normal units.
-
 config BCM47XX
 	bool "BCM47XX based boards"
 	select CEVT_R4K
@@ -720,6 +710,7 @@ config WR_PPMC
 endchoice
 
 source "arch/mips/au1000/Kconfig"
+source "arch/mips/basler/excite/Kconfig"
 source "arch/mips/jazz/Kconfig"
 source "arch/mips/lasat/Kconfig"
 source "arch/mips/pmc-sierra/Kconfig"
diff --git a/arch/mips/basler/excite/Kconfig b/arch/mips/basler/excite/Kconfig
new file mode 100644
index 000000000000..ba506075608b
--- /dev/null
+++ b/arch/mips/basler/excite/Kconfig
@@ -0,0 +1,9 @@
+config BASLER_EXCITE_PROTOTYPE
+	bool "Support for pre-release units"
+	depends on BASLER_EXCITE
+	default n
+	help
+	  Pre-series (prototype) units are different from later ones in
+	  some ways. Select this option if you have one of these. Please
+	  note that a kernel built with this option selected will not be
+	  able to run on normal units.
-- 
cgit v1.2.3-59-g8ed1b


From f6ed10ab972b00cd57567a2ac9e393226840e458 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian.fainelli@telecomint.eu>
Date: Mon, 7 Jan 2008 19:00:46 +0100
Subject: [MIPS] MTX-1: Add GPIO system button

This patch adds support for the GPIO connected system button on the MTX-1
boards. Default configuration is updated accordingly.

Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/au1000/mtx-1/platform.c | 27 ++++++++++++++++++++++++++-
 arch/mips/configs/mtx1_defconfig  |  1 +
 2 files changed, 27 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/mips/au1000/mtx-1/platform.c b/arch/mips/au1000/mtx-1/platform.c
index 49c0fb409fea..ce8637b3afa9 100644
--- a/arch/mips/au1000/mtx-1/platform.c
+++ b/arch/mips/au1000/mtx-1/platform.c
@@ -22,9 +22,32 @@
 #include <linux/types.h>
 #include <linux/platform_device.h>
 #include <linux/leds.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
 
 #include <asm/gpio.h>
 
+static struct gpio_keys_button mtx1_gpio_button[] = {
+	{
+		.gpio = 207,
+		.code = BTN_0,
+		.desc = "System button",
+	}
+};
+
+static struct gpio_keys_platform_data mtx1_buttons_data = {
+	.buttons = mtx1_gpio_button,
+	.nbuttons = ARRAY_SIZE(mtx1_gpio_button),
+};
+
+static struct platform_device mtx1_button = {
+	.name = "gpio-keys",
+	.id = -1,
+	.dev = {
+		.platform_data = &mtx1_buttons_data,
+	}
+};
+
 static struct resource mtx1_wdt_res[] = {
 	[0] = {
 		.start	= 15,
@@ -66,11 +89,13 @@ static struct platform_device mtx1_gpio_leds = {
 
 static struct __initdata platform_device * mtx1_devs[] = {
 	&mtx1_gpio_leds,
-	&mtx1_wdt
+	&mtx1_wdt,
+	&mtx1_button
 };
 
 static int __init mtx1_register_devices(void)
 {
+	gpio_direction_input(207);
 	return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
 }
 
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index be82f123324d..3a34208600d1 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -1616,6 +1616,7 @@ CONFIG_INPUT_EVBUG=m
 #
 CONFIG_INPUT_KEYBOARD=y
 CONFIG_KEYBOARD_ATKBD=y
+CONFIG_KEYBOARD_GPIO=y
 CONFIG_KEYBOARD_SUNKBD=m
 CONFIG_KEYBOARD_LKKBD=m
 CONFIG_KEYBOARD_XTKBD=m
-- 
cgit v1.2.3-59-g8ed1b


From 8a39c520b28f1ffa528baaae6ecfaa3feb5377a5 Mon Sep 17 00:00:00 2001
From: Daniel Walker <dwalker@mvista.com>
Date: Thu, 10 Jan 2008 20:53:21 -0800
Subject: [MIPS] Lasat: Convert pvc_sem semaphore to mutex

I also changed the name to pvc_mutex, and moved the define to the file
it's used in which allows it to be static.

Signed-off-by: Daniel Walker <dwalker@mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/lasat/picvue.c      |  2 --
 arch/mips/lasat/picvue.h      |  3 ---
 arch/mips/lasat/picvue_proc.c | 18 ++++++++++--------
 3 files changed, 10 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/lasat/picvue.c b/arch/mips/lasat/picvue.c
index 6471d0663fd8..d3d04c392e25 100644
--- a/arch/mips/lasat/picvue.c
+++ b/arch/mips/lasat/picvue.c
@@ -22,8 +22,6 @@
 
 struct pvc_defs *picvue;
 
-DECLARE_MUTEX(pvc_sem);
-
 static void pvc_reg_write(u32 val)
 {
 	*picvue->reg = val;
diff --git a/arch/mips/lasat/picvue.h b/arch/mips/lasat/picvue.h
index 2a96bf971897..91df55371127 100644
--- a/arch/mips/lasat/picvue.h
+++ b/arch/mips/lasat/picvue.h
@@ -4,8 +4,6 @@
  * Brian Murphy <brian.murphy@eicon.com>
  *
  */
-#include <asm/semaphore.h>
-
 struct pvc_defs {
 	volatile u32 *reg;
 	u32 data_shift;
@@ -45,4 +43,3 @@ void pvc_move(u8 cmd);
 void pvc_clear(void);
 void pvc_home(void);
 
-extern struct semaphore pvc_sem;
diff --git a/arch/mips/lasat/picvue_proc.c b/arch/mips/lasat/picvue_proc.c
index 9947c1525822..0bb6037afba3 100644
--- a/arch/mips/lasat/picvue_proc.c
+++ b/arch/mips/lasat/picvue_proc.c
@@ -13,9 +13,11 @@
 #include <linux/interrupt.h>
 
 #include <linux/timer.h>
+#include <linux/mutex.h>
 
 #include "picvue.h"
 
+static DEFINE_MUTEX(pvc_mutex);
 static char pvc_lines[PVC_NLINES][PVC_LINELEN+1];
 static int pvc_linedata[PVC_NLINES];
 static struct proc_dir_entry *pvc_display_dir;
@@ -48,9 +50,9 @@ static int pvc_proc_read_line(char *page, char **start,
 		return 0;
 	}
 
-	down(&pvc_sem);
+	mutex_lock(&pvc_mutex);
 	page += sprintf(page, "%s\n", pvc_lines[lineno]);
-	up(&pvc_sem);
+	mutex_unlock(&pvc_mutex);
 
 	return page - origpage;
 }
@@ -73,10 +75,10 @@ static int pvc_proc_write_line(struct file *file, const char *buffer,
 	if (buffer[count-1] == '\n')
 		count--;
 
-	down(&pvc_sem);
+	mutex_lock(&pvc_mutex);
 	strncpy(pvc_lines[lineno], buffer, count);
 	pvc_lines[lineno][count] = '\0';
-	up(&pvc_sem);
+	mutex_unlock(&pvc_mutex);
 
 	tasklet_schedule(&pvc_display_tasklet);
 
@@ -89,7 +91,7 @@ static int pvc_proc_write_scroll(struct file *file, const char *buffer,
 	int origcount = count;
 	int cmd = simple_strtol(buffer, NULL, 10);
 
-	down(&pvc_sem);
+	mutex_lock(&pvc_mutex);
 	if (scroll_interval != 0)
 		del_timer(&timer);
 
@@ -106,7 +108,7 @@ static int pvc_proc_write_scroll(struct file *file, const char *buffer,
 		}
 		add_timer(&timer);
 	}
-	up(&pvc_sem);
+	mutex_unlock(&pvc_mutex);
 
 	return origcount;
 }
@@ -117,9 +119,9 @@ static int pvc_proc_read_scroll(char *page, char **start,
 {
 	char *origpage = page;
 
-	down(&pvc_sem);
+	mutex_lock(&pvc_mutex);
 	page += sprintf(page, "%d\n", scroll_dir * scroll_interval);
-	up(&pvc_sem);
+	mutex_unlock(&pvc_mutex);
 
 	return page - origpage;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 9900485893c004245cbaeef050fe6ba5453a5925 Mon Sep 17 00:00:00 2001
From: Vitaly Wool <vitalywool@gmail.com>
Date: Sat, 12 Jan 2008 16:03:40 +0300
Subject: [MIPS] pnx8xxx: clocksource cleanups

Signed-off-by: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/philips/pnx8550/common/time.c | 35 +++++++++++----------------------
 1 file changed, 11 insertions(+), 24 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/philips/pnx8550/common/time.c b/arch/mips/philips/pnx8550/common/time.c
index 6d494e0de3d9..62f495b57f93 100644
--- a/arch/mips/philips/pnx8550/common/time.c
+++ b/arch/mips/philips/pnx8550/common/time.c
@@ -47,11 +47,6 @@ static struct clocksource pnx_clocksource = {
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
-static void timer_ack(void)
-{
-	write_c0_compare(cpj);
-}
-
 static irqreturn_t pnx8xxx_timer_interrupt(int irq, void *dev_id)
 {
 	struct clock_event_device *c = dev_id;
@@ -94,30 +89,22 @@ static struct clock_event_device pnx8xxx_clockevent = {
 	.set_next_event = pnx8xxx_set_next_event,
 };
 
-/*
- * plat_time_init() - it does the following things:
- *
- * 1) plat_time_init() -
- * 	a) (optional) set up RTC routines,
- *      b) (optional) calibrate and set the mips_hpt_frequency
- *	    (only needed if you intended to use cpu counter as timer interrupt
- *	     source)
- */
+static inline void timer_ack(void)
+{
+	write_c0_compare(cpj);
+}
 
 __init void plat_time_init(void)
 {
-	unsigned int             configPR;
-	unsigned int             n;
-	unsigned int             m;
-	unsigned int             p;
-	unsigned int             pow2p;
+	unsigned int configPR;
+	unsigned int n;
+	unsigned int m;
+	unsigned int p;
+	unsigned int pow2p;
 
 	clockevents_register_device(&pnx8xxx_clockevent);
 	clocksource_register(&pnx_clocksource);
 
-	setup_irq(PNX8550_INT_TIMER1, &pnx8xxx_timer_irq);
-	setup_irq(PNX8550_INT_TIMER2, &monotonic_irqaction);
-
 	/* Timer 1 start */
 	configPR = read_c0_config7();
 	configPR &= ~0x00000008;
@@ -158,6 +145,6 @@ __init void plat_time_init(void)
 	write_c0_count2(0);
 	write_c0_compare2(0xffffffff);
 
+	setup_irq(PNX8550_INT_TIMER1, &pnx8xxx_timer_irq);
+	setup_irq(PNX8550_INT_TIMER2, &monotonic_irqaction);
 }
-
-
-- 
cgit v1.2.3-59-g8ed1b


From 302922e5f6901eb6f29c58539631f71b3d9746b8 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:15:02 +0000
Subject: [MIPS] Qemu: Remove platform.

The Qemu platform was originally implemented to have an easily supportable
platform until Qemu reaches a state where it emulates a real world system.
Since the latest release Qemu is capable of emulating the MIPSsim and
Malta platforms, so this goal has been reached.  The Qemu plaform is also
rather underfeatured so less useful than a Malta emulation.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig                                  | 28 ---------
 arch/mips/Makefile                                 |  8 ---
 arch/mips/configs/atlas_defconfig                  |  1 -
 arch/mips/configs/bigsur_defconfig                 |  1 -
 arch/mips/configs/capcella_defconfig               |  1 -
 arch/mips/configs/cobalt_defconfig                 |  1 -
 arch/mips/configs/db1000_defconfig                 |  1 -
 arch/mips/configs/db1100_defconfig                 |  1 -
 arch/mips/configs/db1200_defconfig                 |  1 -
 arch/mips/configs/db1500_defconfig                 |  1 -
 arch/mips/configs/db1550_defconfig                 |  1 -
 arch/mips/configs/decstation_defconfig             |  1 -
 arch/mips/configs/e55_defconfig                    |  1 -
 arch/mips/configs/emma2rh_defconfig                |  1 -
 arch/mips/configs/excite_defconfig                 |  1 -
 arch/mips/configs/fulong_defconfig                 |  1 -
 arch/mips/configs/ip22_defconfig                   |  1 -
 arch/mips/configs/ip27_defconfig                   |  1 -
 arch/mips/configs/ip32_defconfig                   |  1 -
 arch/mips/configs/jazz_defconfig                   |  1 -
 arch/mips/configs/jmr3927_defconfig                |  1 -
 arch/mips/configs/lasat_defconfig                  |  1 -
 arch/mips/configs/malta_defconfig                  |  1 -
 arch/mips/configs/mipssim_defconfig                |  1 -
 arch/mips/configs/mpc30x_defconfig                 |  1 -
 arch/mips/configs/msp71xx_defconfig                |  1 -
 arch/mips/configs/mtx1_defconfig                   |  1 -
 arch/mips/configs/pb1100_defconfig                 |  1 -
 arch/mips/configs/pb1500_defconfig                 |  1 -
 arch/mips/configs/pb1550_defconfig                 |  1 -
 arch/mips/configs/pnx8550-jbs_defconfig            |  1 -
 arch/mips/configs/pnx8550-stb810_defconfig         |  1 -
 arch/mips/configs/qemu_defconfig                   |  1 -
 arch/mips/configs/rbhma4200_defconfig              |  1 -
 arch/mips/configs/rbhma4500_defconfig              |  1 -
 arch/mips/configs/rm200_defconfig                  |  1 -
 arch/mips/configs/sb1250-swarm_defconfig           |  1 -
 arch/mips/configs/sead_defconfig                   |  1 -
 arch/mips/configs/tb0219_defconfig                 |  1 -
 arch/mips/configs/tb0226_defconfig                 |  1 -
 arch/mips/configs/tb0287_defconfig                 |  1 -
 arch/mips/configs/workpad_defconfig                |  1 -
 arch/mips/configs/wrppmc_defconfig                 |  1 -
 arch/mips/configs/yosemite_defconfig               |  1 -
 arch/mips/defconfig                                |  1 -
 arch/mips/qemu/Makefile                            | 10 ----
 arch/mips/qemu/q-console.c                         | 26 ---------
 arch/mips/qemu/q-firmware.c                        | 24 --------
 arch/mips/qemu/q-irq.c                             | 37 ------------
 arch/mips/qemu/q-mem.c                             |  5 --
 arch/mips/qemu/q-reset.c                           | 33 -----------
 arch/mips/qemu/q-setup.c                           | 37 ------------
 arch/mips/qemu/q-smp.c                             | 67 ----------------------
 include/asm-mips/mach-qemu/cpu-feature-overrides.h | 32 -----------
 include/asm-mips/mach-qemu/war.h                   | 25 --------
 55 files changed, 375 deletions(-)
 delete mode 100644 arch/mips/qemu/Makefile
 delete mode 100644 arch/mips/qemu/q-console.c
 delete mode 100644 arch/mips/qemu/q-firmware.c
 delete mode 100644 arch/mips/qemu/q-irq.c
 delete mode 100644 arch/mips/qemu/q-mem.c
 delete mode 100644 arch/mips/qemu/q-reset.c
 delete mode 100644 arch/mips/qemu/q-setup.c
 delete mode 100644 arch/mips/qemu/q-smp.c
 delete mode 100644 include/asm-mips/mach-qemu/cpu-feature-overrides.h
 delete mode 100644 include/asm-mips/mach-qemu/war.h

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index ff9cc18d456a..a97bee108d3c 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -359,34 +359,6 @@ config PMC_YOSEMITE
 	  Yosemite is an evaluation board for the RM9000x2 processor
 	  manufactured by PMC-Sierra.
 
-config QEMU
-	bool "Qemu"
-	select CEVT_R4K
-	select CSRC_R4K
-	select DMA_COHERENT
-	select GENERIC_ISA_DMA
-	select HAVE_STD_PC_SERIAL_PORT
-	select I8253
-	select I8259
-	select IRQ_CPU
-	select ISA
-	select SWAP_IO_SPACE
-	select SYS_HAS_CPU_MIPS32_R1
-	select SYS_HAS_EARLY_PRINTK
-	select SYS_SUPPORTS_32BIT_KERNEL
-	select SYS_SUPPORTS_BIG_ENDIAN
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-	select GENERIC_HARDIRQS_NO__DO_IRQ
-	select NR_CPUS_DEFAULT_1
-	select SYS_SUPPORTS_SMP
-	help
-	  Qemu is a software emulator which among other architectures also
-	  can simulate a MIPS32 4Kc system.  This patch adds support for the
-	  system architecture that currently is being simulated by Qemu.  It
-	  will eventually be removed again when Qemu has the capability to
-	  simulate actual MIPS hardware platforms.  More information on Qemu
-	  can be found at http://www.linux-mips.org/wiki/Qemu.
-
 config SGI_IP22
 	bool "SGI IP22 (Indy/Indigo2)"
 	select ARC
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index b96af0669513..3fb7f3065c92 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -354,14 +354,6 @@ core-$(CONFIG_PMC_YOSEMITE)	+= arch/mips/pmc-sierra/yosemite/
 cflags-$(CONFIG_PMC_YOSEMITE)	+= -Iinclude/asm-mips/mach-yosemite
 load-$(CONFIG_PMC_YOSEMITE)	+= 0xffffffff80100000
 
-#
-# Qemu simulating MIPS32 4Kc
-#
-core-$(CONFIG_QEMU)		+= arch/mips/qemu/
-cflags-$(CONFIG_QEMU)		+= -Iinclude/asm-mips/mach-qemu
-load-$(CONFIG_QEMU)		+= 0xffffffff80010000
-all-$(CONFIG_QEMU)		:= vmlinux.bin
-
 #
 # Basler eXcite
 #
diff --git a/arch/mips/configs/atlas_defconfig b/arch/mips/configs/atlas_defconfig
index c28db00fe469..3443f6cd57bb 100644
--- a/arch/mips/configs/atlas_defconfig
+++ b/arch/mips/configs/atlas_defconfig
@@ -37,7 +37,6 @@ CONFIG_MIPS_ATLAS=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig
index 4bb97a08c9e6..abf70d74e9d7 100644
--- a/arch/mips/configs/bigsur_defconfig
+++ b/arch/mips/configs/bigsur_defconfig
@@ -37,7 +37,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/capcella_defconfig b/arch/mips/configs/capcella_defconfig
index 128908a542db..a94f14b5c8fa 100644
--- a/arch/mips/configs/capcella_defconfig
+++ b/arch/mips/configs/capcella_defconfig
@@ -24,7 +24,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/cobalt_defconfig b/arch/mips/configs/cobalt_defconfig
index cb56ebc760e9..b7295e988381 100644
--- a/arch/mips/configs/cobalt_defconfig
+++ b/arch/mips/configs/cobalt_defconfig
@@ -24,7 +24,6 @@ CONFIG_MIPS_COBALT=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/db1000_defconfig b/arch/mips/configs/db1000_defconfig
index 184f119ff29d..36578968d386 100644
--- a/arch/mips/configs/db1000_defconfig
+++ b/arch/mips/configs/db1000_defconfig
@@ -38,7 +38,6 @@ CONFIG_MIPS_DB1000=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/db1100_defconfig b/arch/mips/configs/db1100_defconfig
index e61dbee45560..5a90740c363a 100644
--- a/arch/mips/configs/db1100_defconfig
+++ b/arch/mips/configs/db1100_defconfig
@@ -38,7 +38,6 @@ CONFIG_MIPS_DB1100=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/db1200_defconfig b/arch/mips/configs/db1200_defconfig
index 508faf44ca72..76f37a1159fe 100644
--- a/arch/mips/configs/db1200_defconfig
+++ b/arch/mips/configs/db1200_defconfig
@@ -38,7 +38,6 @@ CONFIG_MIPS_DB1200=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/db1500_defconfig b/arch/mips/configs/db1500_defconfig
index 5abadf34924d..508c91944f30 100644
--- a/arch/mips/configs/db1500_defconfig
+++ b/arch/mips/configs/db1500_defconfig
@@ -38,7 +38,6 @@ CONFIG_MIPS_DB1500=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/db1550_defconfig b/arch/mips/configs/db1550_defconfig
index 9ccdcf0848a6..0c2c70d21db9 100644
--- a/arch/mips/configs/db1550_defconfig
+++ b/arch/mips/configs/db1550_defconfig
@@ -38,7 +38,6 @@ CONFIG_MIPS_DB1550=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/decstation_defconfig b/arch/mips/configs/decstation_defconfig
index b661cd61ea51..58c2cd68c3a7 100644
--- a/arch/mips/configs/decstation_defconfig
+++ b/arch/mips/configs/decstation_defconfig
@@ -37,7 +37,6 @@ CONFIG_MACH_DECSTATION=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/e55_defconfig b/arch/mips/configs/e55_defconfig
index 93d19a575008..90d81f5dcebc 100644
--- a/arch/mips/configs/e55_defconfig
+++ b/arch/mips/configs/e55_defconfig
@@ -24,7 +24,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/emma2rh_defconfig b/arch/mips/configs/emma2rh_defconfig
index f931bcb73ae6..f9a003c2b3a1 100644
--- a/arch/mips/configs/emma2rh_defconfig
+++ b/arch/mips/configs/emma2rh_defconfig
@@ -37,7 +37,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 CONFIG_MARKEINS=y
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/excite_defconfig b/arch/mips/configs/excite_defconfig
index dc3058645acc..15efacc75d73 100644
--- a/arch/mips/configs/excite_defconfig
+++ b/arch/mips/configs/excite_defconfig
@@ -38,7 +38,6 @@ CONFIG_BASLER_EXCITE=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/fulong_defconfig b/arch/mips/configs/fulong_defconfig
index d89eeb006c67..5887a1735fba 100644
--- a/arch/mips/configs/fulong_defconfig
+++ b/arch/mips/configs/fulong_defconfig
@@ -23,7 +23,6 @@ CONFIG_LEMOTE_FULONG=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig
index a6957a66838d..4f5e56c9335e 100644
--- a/arch/mips/configs/ip22_defconfig
+++ b/arch/mips/configs/ip22_defconfig
@@ -25,7 +25,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 CONFIG_SGI_IP22=y
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig
index 8feb16a55b56..f40e437bd9e5 100644
--- a/arch/mips/configs/ip27_defconfig
+++ b/arch/mips/configs/ip27_defconfig
@@ -24,7 +24,6 @@ CONFIG_MIPS=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 CONFIG_SGI_IP27=y
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig
index ad547c7c6f81..2c5c624c5d42 100644
--- a/arch/mips/configs/ip32_defconfig
+++ b/arch/mips/configs/ip32_defconfig
@@ -37,7 +37,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig
index 500daa9c3d82..56148745e8f2 100644
--- a/arch/mips/configs/jazz_defconfig
+++ b/arch/mips/configs/jazz_defconfig
@@ -37,7 +37,6 @@ CONFIG_MACH_JAZZ=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/jmr3927_defconfig b/arch/mips/configs/jmr3927_defconfig
index 8dbfa19496cb..a7cd67753aac 100644
--- a/arch/mips/configs/jmr3927_defconfig
+++ b/arch/mips/configs/jmr3927_defconfig
@@ -24,7 +24,6 @@ CONFIG_MIPS=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/lasat_defconfig b/arch/mips/configs/lasat_defconfig
index aa67a3baf53f..e6aef999854c 100644
--- a/arch/mips/configs/lasat_defconfig
+++ b/arch/mips/configs/lasat_defconfig
@@ -25,7 +25,6 @@ CONFIG_LASAT=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig
index 9e32b029501e..3d0da952811c 100644
--- a/arch/mips/configs/malta_defconfig
+++ b/arch/mips/configs/malta_defconfig
@@ -25,7 +25,6 @@ CONFIG_MIPS_MALTA=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/mipssim_defconfig b/arch/mips/configs/mipssim_defconfig
index 5a7b4ed76906..6db0bdaefb27 100644
--- a/arch/mips/configs/mipssim_defconfig
+++ b/arch/mips/configs/mipssim_defconfig
@@ -26,7 +26,6 @@ CONFIG_MIPS_SIM=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/mpc30x_defconfig b/arch/mips/configs/mpc30x_defconfig
index c2f7ce9ff603..27e23fc9363a 100644
--- a/arch/mips/configs/mpc30x_defconfig
+++ b/arch/mips/configs/mpc30x_defconfig
@@ -24,7 +24,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/msp71xx_defconfig b/arch/mips/configs/msp71xx_defconfig
index af4a41e06e87..b12b73f6d74f 100644
--- a/arch/mips/configs/msp71xx_defconfig
+++ b/arch/mips/configs/msp71xx_defconfig
@@ -38,7 +38,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MACH_VR41XX is not set
 CONFIG_PMC_MSP=y
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index 3a34208600d1..fa3aa3919448 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -24,7 +24,6 @@ CONFIG_MACH_ALCHEMY=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/pb1100_defconfig b/arch/mips/configs/pb1100_defconfig
index 2d394578b969..1d0157d3a5bb 100644
--- a/arch/mips/configs/pb1100_defconfig
+++ b/arch/mips/configs/pb1100_defconfig
@@ -38,7 +38,6 @@ CONFIG_MIPS_PB1100=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/pb1500_defconfig b/arch/mips/configs/pb1500_defconfig
index 0d645621ce79..d0491a05ee58 100644
--- a/arch/mips/configs/pb1500_defconfig
+++ b/arch/mips/configs/pb1500_defconfig
@@ -38,7 +38,6 @@ CONFIG_MIPS_PB1500=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/pb1550_defconfig b/arch/mips/configs/pb1550_defconfig
index 210a06543116..16d78d3cd2aa 100644
--- a/arch/mips/configs/pb1550_defconfig
+++ b/arch/mips/configs/pb1550_defconfig
@@ -38,7 +38,6 @@ CONFIG_MIPS_PB1550=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/pnx8550-jbs_defconfig b/arch/mips/configs/pnx8550-jbs_defconfig
index bee11ebed8ec..518a60892b78 100644
--- a/arch/mips/configs/pnx8550-jbs_defconfig
+++ b/arch/mips/configs/pnx8550-jbs_defconfig
@@ -37,7 +37,6 @@ CONFIG_PNX8550_JBS=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/pnx8550-stb810_defconfig b/arch/mips/configs/pnx8550-stb810_defconfig
index b088a5ce268f..68351eb81bc8 100644
--- a/arch/mips/configs/pnx8550-stb810_defconfig
+++ b/arch/mips/configs/pnx8550-stb810_defconfig
@@ -37,7 +37,6 @@ CONFIG_ZONE_DMA=y
 CONFIG_PNX8550_STB810=y
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/qemu_defconfig b/arch/mips/configs/qemu_defconfig
index ec1a6a796599..72ca147f9422 100644
--- a/arch/mips/configs/qemu_defconfig
+++ b/arch/mips/configs/qemu_defconfig
@@ -37,7 +37,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-CONFIG_QEMU=y
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/rbhma4200_defconfig b/arch/mips/configs/rbhma4200_defconfig
index 16494d0942b8..470f6f4d3ea2 100644
--- a/arch/mips/configs/rbhma4200_defconfig
+++ b/arch/mips/configs/rbhma4200_defconfig
@@ -24,7 +24,6 @@ CONFIG_MIPS=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/rbhma4500_defconfig b/arch/mips/configs/rbhma4500_defconfig
index aa9e0cf66143..5a39f56b175e 100644
--- a/arch/mips/configs/rbhma4500_defconfig
+++ b/arch/mips/configs/rbhma4500_defconfig
@@ -24,7 +24,6 @@ CONFIG_MIPS=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig
index 7aaa6d6513f1..56371b860eb0 100644
--- a/arch/mips/configs/rm200_defconfig
+++ b/arch/mips/configs/rm200_defconfig
@@ -37,7 +37,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/sb1250-swarm_defconfig b/arch/mips/configs/sb1250-swarm_defconfig
index 4fe6a0b5c357..117470b60e34 100644
--- a/arch/mips/configs/sb1250-swarm_defconfig
+++ b/arch/mips/configs/sb1250-swarm_defconfig
@@ -37,7 +37,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/sead_defconfig b/arch/mips/configs/sead_defconfig
index aa5733779014..3ee75b15c0b0 100644
--- a/arch/mips/configs/sead_defconfig
+++ b/arch/mips/configs/sead_defconfig
@@ -37,7 +37,6 @@ CONFIG_MIPS_SEAD=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/tb0219_defconfig b/arch/mips/configs/tb0219_defconfig
index 0ae553923f98..af82e1a1823c 100644
--- a/arch/mips/configs/tb0219_defconfig
+++ b/arch/mips/configs/tb0219_defconfig
@@ -24,7 +24,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/tb0226_defconfig b/arch/mips/configs/tb0226_defconfig
index e1f22023969d..a95385b24546 100644
--- a/arch/mips/configs/tb0226_defconfig
+++ b/arch/mips/configs/tb0226_defconfig
@@ -24,7 +24,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/tb0287_defconfig b/arch/mips/configs/tb0287_defconfig
index 790e62bc0860..40d4a40a970e 100644
--- a/arch/mips/configs/tb0287_defconfig
+++ b/arch/mips/configs/tb0287_defconfig
@@ -24,7 +24,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/workpad_defconfig b/arch/mips/configs/workpad_defconfig
index 1412c47517ff..edf90b321fe6 100644
--- a/arch/mips/configs/workpad_defconfig
+++ b/arch/mips/configs/workpad_defconfig
@@ -24,7 +24,6 @@ CONFIG_MACH_VR41XX=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/configs/wrppmc_defconfig b/arch/mips/configs/wrppmc_defconfig
index bbfeeeacc486..2e3c683b2052 100644
--- a/arch/mips/configs/wrppmc_defconfig
+++ b/arch/mips/configs/wrppmc_defconfig
@@ -37,7 +37,6 @@ CONFIG_WR_PPMC=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/configs/yosemite_defconfig b/arch/mips/configs/yosemite_defconfig
index 980dfb6417e9..b6178ffbc523 100644
--- a/arch/mips/configs/yosemite_defconfig
+++ b/arch/mips/configs/yosemite_defconfig
@@ -37,7 +37,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_MACH_VR41XX is not set
 CONFIG_PMC_YOSEMITE=y
-# CONFIG_QEMU is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
diff --git a/arch/mips/defconfig b/arch/mips/defconfig
index a6957a66838d..4f5e56c9335e 100644
--- a/arch/mips/defconfig
+++ b/arch/mips/defconfig
@@ -25,7 +25,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_PMC_MSP is not set
 # CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
 CONFIG_SGI_IP22=y
 # CONFIG_SGI_IP27 is not set
 # CONFIG_SGI_IP32 is not set
diff --git a/arch/mips/qemu/Makefile b/arch/mips/qemu/Makefile
deleted file mode 100644
index 2ba4ef34b4a7..000000000000
--- a/arch/mips/qemu/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-#
-# Makefile for Qemu specific kernel interface routines under Linux.
-#
-
-obj-y		= q-firmware.o q-irq.o q-mem.o q-setup.o q-reset.o
-
-obj-$(CONFIG_EARLY_PRINTK)	+= q-console.o
-obj-$(CONFIG_SMP)		+= q-smp.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/qemu/q-console.c b/arch/mips/qemu/q-console.c
deleted file mode 100644
index 81101ae5017a..000000000000
--- a/arch/mips/qemu/q-console.c
+++ /dev/null
@@ -1,26 +0,0 @@
-#include <linux/console.h>
-#include <linux/init.h>
-#include <linux/serial_reg.h>
-#include <asm/io.h>
-
-#define PORT(offset) (0x3f8 + (offset))
-
-static inline unsigned int serial_in(int offset)
-{
-	return inb(PORT(offset));
-}
-
-static inline void serial_out(int offset, int value)
-{
-	outb(value, PORT(offset));
-}
-
-int prom_putchar(char c)
-{
-	while ((serial_in(UART_LSR) & UART_LSR_THRE) == 0)
-		;
-
-	serial_out(UART_TX, c);
-
-	return 1;
-}
diff --git a/arch/mips/qemu/q-firmware.c b/arch/mips/qemu/q-firmware.c
deleted file mode 100644
index 3ed43f416cd1..000000000000
--- a/arch/mips/qemu/q-firmware.c
+++ /dev/null
@@ -1,24 +0,0 @@
-#include <linux/init.h>
-#include <linux/string.h>
-#include <asm/addrspace.h>
-#include <asm/bootinfo.h>
-#include <asm/io.h>
-
-#define QEMU_PORT_BASE 0xb4000000
-
-void __init prom_init(void)
-{
-	int *cmdline;
-
-	cmdline = (int *) (CKSEG0 + (0x10 << 20) - 260);
-	if (*cmdline == 0x12345678) {
-		if (*(char *)(cmdline + 1))
-			strcpy(arcs_cmdline, (char *)(cmdline + 1));
-		add_memory_region(0x0<<20, cmdline[-1], BOOT_MEM_RAM);
-	} else {
-		add_memory_region(0x0<<20, 0x10<<20, BOOT_MEM_RAM);
-	}
-
-
-	set_io_port_base(QEMU_PORT_BASE);
-}
diff --git a/arch/mips/qemu/q-irq.c b/arch/mips/qemu/q-irq.c
deleted file mode 100644
index 7df36dbe65c7..000000000000
--- a/arch/mips/qemu/q-irq.c
+++ /dev/null
@@ -1,37 +0,0 @@
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/linkage.h>
-
-#include <asm/i8259.h>
-#include <asm/irq_cpu.h>
-#include <asm/mipsregs.h>
-#include <asm/qemu.h>
-#include <asm/system.h>
-#include <asm/time.h>
-
-asmlinkage void plat_irq_dispatch(void)
-{
-	unsigned int pending = read_c0_status() & read_c0_cause();
-
-	if (pending & 0x8000) {
-		do_IRQ(Q_COUNT_COMPARE_IRQ);
-		return;
-	}
-	if (pending & 0x0400) {
-		int irq = i8259_irq();
-
-		if (likely(irq >= 0))
-			do_IRQ(irq);
-
-		return;
-	}
-}
-
-void __init arch_init_irq(void)
-{
-	mips_hpt_frequency = QEMU_C0_COUNTER_CLOCK;		/* 100MHz */
-
-	mips_cpu_irq_init();
-	init_i8259_irqs();
-	set_c0_status(0x400);
-}
diff --git a/arch/mips/qemu/q-mem.c b/arch/mips/qemu/q-mem.c
deleted file mode 100644
index dae39b59de15..000000000000
--- a/arch/mips/qemu/q-mem.c
+++ /dev/null
@@ -1,5 +0,0 @@
-#include <linux/init.h>
-
-void __init prom_free_prom_memory(void)
-{
-}
diff --git a/arch/mips/qemu/q-reset.c b/arch/mips/qemu/q-reset.c
deleted file mode 100644
index dbbe44ad7e89..000000000000
--- a/arch/mips/qemu/q-reset.c
+++ /dev/null
@@ -1,33 +0,0 @@
-
-#include <asm/io.h>
-#include <asm/reboot.h>
-#include <asm/cacheflush.h>
-#include <asm/qemu.h>
-
-static void qemu_machine_restart(char *command)
-{
-	volatile unsigned int *reg = (unsigned int *)QEMU_RESTART_REG;
-
-	set_c0_status(ST0_BEV | ST0_ERL);
-	change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
-	flush_cache_all();
-	write_c0_wired(0);
-	*reg = 42;
-	while (1)
-		cpu_wait();
-}
-
-static void qemu_machine_halt(void)
-{
-	volatile unsigned int *reg = (unsigned int *)QEMU_HALT_REG;
-
-	*reg = 42;
-	while (1)
-		cpu_wait();
-}
-
-void qemu_reboot_setup(void)
-{
-	_machine_restart = qemu_machine_restart;
-	_machine_halt = qemu_machine_halt;
-}
diff --git a/arch/mips/qemu/q-setup.c b/arch/mips/qemu/q-setup.c
deleted file mode 100644
index 9f0c2d3c67ea..000000000000
--- a/arch/mips/qemu/q-setup.c
+++ /dev/null
@@ -1,37 +0,0 @@
-#include <linux/init.h>
-#include <linux/platform_device.h>
-
-#include <asm/i8253.h>
-#include <asm/io.h>
-#include <asm/time.h>
-
-extern void qemu_reboot_setup(void);
-
-const char *get_system_type(void)
-{
-	return "Qemu";
-}
-
-void __init plat_time_init(void)
-{
-	setup_pit_timer();
-}
-
-void __init plat_mem_setup(void)
-{
-	qemu_reboot_setup();
-}
-
-static struct platform_device pcspeaker_pdev = {
-	.name	= "pcspkr",
-	.id	= -1,
-};
-
-static int __init qemu_platform_devinit(void)
-{
-	platform_device_register(&pcspeaker_pdev);
-
-	return 0;
-}
-
-device_initcall(qemu_platform_devinit);
diff --git a/arch/mips/qemu/q-smp.c b/arch/mips/qemu/q-smp.c
deleted file mode 100644
index ead6c30eeb14..000000000000
--- a/arch/mips/qemu/q-smp.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2006, 07 by Ralf Baechle (ralf@linux-mips.org)
- *
- * Symmetric Uniprocessor (TM) Support
- */
-#include <linux/kernel.h>
-#include <linux/sched.h>
-
-/*
- * Send inter-processor interrupt
- */
-void up_send_ipi_single(int cpu, unsigned int action)
-{
-	panic(KERN_ERR "%s called", __func__);
-}
-
-static inline void up_send_ipi_mask(cpumask_t mask, unsigned int action)
-{
-	panic(KERN_ERR "%s called", __func__);
-}
-
-/*
- *  After we've done initial boot, this function is called to allow the
- *  board code to clean up state, if needed
- */
-void __cpuinit up_init_secondary(void)
-{
-}
-
-void __cpuinit up_smp_finish(void)
-{
-}
-
-/* Hook for after all CPUs are online */
-void up_cpus_done(void)
-{
-}
-
-/*
- * Firmware CPU startup hook
- */
-void __cpuinit up_boot_secondary(int cpu, struct task_struct *idle)
-{
-}
-
-void __init up_smp_setup(void)
-{
-}
-
-void __init up_prepare_cpus(unsigned int max_cpus)
-{
-}
-
-struct plat_smp_ops up_smp_ops = {
-	.send_ipi_single	= up_send_ipi_single,
-	.send_ipi_mask		= up_send_ipi_mask,
-	.init_secondary		= up_init_secondary,
-	.smp_finish		= up_smp_finish,
-	.cpus_done		= up_cpus_done,
-	.boot_secondary		= up_boot_secondary,
-	.smp_setup		= up_smp_setup,
-	.prepare_cpus		= up_prepare_cpus,
-};
diff --git a/include/asm-mips/mach-qemu/cpu-feature-overrides.h b/include/asm-mips/mach-qemu/cpu-feature-overrides.h
deleted file mode 100644
index d2daaed235d5..000000000000
--- a/include/asm-mips/mach-qemu/cpu-feature-overrides.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2003, 07 Ralf Baechle
- */
-#ifndef __ASM_MACH_QEMU_CPU_FEATURE_OVERRIDES_H
-#define __ASM_MACH_QEMU_CPU_FEATURE_OVERRIDES_H
-
-/*
- * QEMU only comes with a hazard-free MIPS32 processor, so things are easy.
- */
-#define cpu_has_mips16		0
-#define cpu_has_divec		0
-#define cpu_has_cache_cdex_p	0
-#define cpu_has_prefetch	0
-#define cpu_has_mcheck		0
-#define cpu_has_ejtag		0
-
-#define cpu_has_llsc		1
-#define cpu_has_vtag_icache	0
-#define cpu_has_dc_aliases	0
-#define cpu_has_ic_fills_f_dc	0
-
-#define cpu_has_dsp		0
-#define cpu_has_mipsmt		0
-
-#define cpu_has_nofpuex		0
-#define cpu_has_64bits		0
-
-#endif /* __ASM_MACH_QEMU_CPU_FEATURE_OVERRIDES_H */
diff --git a/include/asm-mips/mach-qemu/war.h b/include/asm-mips/mach-qemu/war.h
deleted file mode 100644
index 0eaf0c548a47..000000000000
--- a/include/asm-mips/mach-qemu/war.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2002, 2004, 2007 by Ralf Baechle <ralf@linux-mips.org>
- */
-#ifndef __ASM_MIPS_MACH_QEMU_WAR_H
-#define __ASM_MIPS_MACH_QEMU_WAR_H
-
-#define R4600_V1_INDEX_ICACHEOP_WAR	0
-#define R4600_V1_HIT_CACHEOP_WAR	0
-#define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
-#define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
-#define MIPS4K_ICACHE_REFILL_WAR	0
-#define MIPS_CACHE_SYNC_WAR		0
-#define TX49XX_ICACHE_INDEX_INV_WAR	0
-#define RM9000_CDEX_SMP_WAR		0
-#define ICACHE_REFILLS_WORKAROUND_WAR	0
-#define R10000_LLSC_WAR			0
-#define MIPS34K_MISSED_ITLB_WAR		0
-
-#endif /* __ASM_MIPS_MACH_QEMU_WAR_H */
-- 
cgit v1.2.3-59-g8ed1b


From 0e8774b621513e3cc07fa5a7b05adc295c95eeee Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian.fainelli@telecomint.eu>
Date: Tue, 15 Jan 2008 19:42:57 +0100
Subject: [MIPS] Cobalt 64-bits kernels can be safely unmarked experimental

64-bits Cobalt kernels run fine.

Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index a97bee108d3c..6b0f85f02c79 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -72,7 +72,7 @@ config MIPS_COBALT
 	select SYS_HAS_CPU_NEVADA
 	select SYS_HAS_EARLY_PRINTK
 	select SYS_SUPPORTS_32BIT_KERNEL
-	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
+	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select GENERIC_HARDIRQS_NO__DO_IRQ
 
-- 
cgit v1.2.3-59-g8ed1b


From d4e9cffa161da806cb4bc9df4a4e49d287156bfa Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 29 Jan 2008 10:15:02 +0000
Subject: [MIPS] compat: handle argument endianess of sys32_(f)truncate64 with
 merge_64

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/linux32.c | 30 +++++-------------------------
 1 file changed, 5 insertions(+), 25 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 2b8ec1102e86..65af3cc90abb 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -174,36 +174,16 @@ struct rlimit32 {
 	int	rlim_max;
 };
 
-#ifdef __MIPSEB__
-asmlinkage long sys32_truncate64(const char __user * path, unsigned long __dummy,
-	int length_hi, int length_lo)
-#endif
-#ifdef __MIPSEL__
-asmlinkage long sys32_truncate64(const char __user * path, unsigned long __dummy,
-	int length_lo, int length_hi)
-#endif
+asmlinkage long sys32_truncate64(const char __user * path,
+	unsigned long __dummy, int a2, int a3)
 {
-	loff_t length;
-
-	length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
-
-	return sys_truncate(path, length);
+	return sys_truncate(path, merge_64(a2, a3));
 }
 
-#ifdef __MIPSEB__
 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
-	int length_hi, int length_lo)
-#endif
-#ifdef __MIPSEL__
-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
-	int length_lo, int length_hi)
-#endif
+	int a2, int a3)
 {
-	loff_t length;
-
-	length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
-
-	return sys_ftruncate(fd, length);
+	return sys_ftruncate(fd, merge_64(a2, a3));
 }
 
 static inline long
-- 
cgit v1.2.3-59-g8ed1b


From 12323cacca2014dcf517d1988fcdb8e44a1f497b Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@computergmbh.de>
Date: Tue, 22 Jan 2008 20:42:33 +0100
Subject: [MIPS]: constify function pointer tables

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/basler/excite/excite_iodev.c | 2 +-
 arch/mips/kernel/proc.c                | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/basler/excite/excite_iodev.c b/arch/mips/basler/excite/excite_iodev.c
index 6af0b21ebc32..476d20e08d0e 100644
--- a/arch/mips/basler/excite/excite_iodev.c
+++ b/arch/mips/basler/excite/excite_iodev.c
@@ -48,7 +48,7 @@ static DECLARE_WAIT_QUEUE_HEAD(wq);
 
 
 
-static struct file_operations fops =
+static const struct file_operations fops =
 {
 	.owner		= THIS_MODULE,
 	.open		= iodev_open,
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 34dd22838fdb..36f065398243 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -90,7 +90,7 @@ static void c_stop(struct seq_file *m, void *v)
 {
 }
 
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
 	.start	= c_start,
 	.next	= c_next,
 	.stop	= c_stop,
-- 
cgit v1.2.3-59-g8ed1b


From 4ca765135414e85c80f0a68bb35189472bb9ad1e Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:41 +0300
Subject: [MIPS] Malta: use Linux kernel style for structure initialization

This patch reformats the structure initialization code thus
making the latter look idiomatic.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_setup.c | 56 +++++++++++++++++++++++--------
 1 file changed, 42 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index bc43a5c2224d..d051405a2809 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -43,11 +43,36 @@ extern void kgdb_config(void);
 #endif
 
 struct resource standard_io_resources[] = {
-	{ .name = "dma1", .start = 0x00, .end = 0x1f, .flags = IORESOURCE_BUSY },
-	{ .name = "timer", .start = 0x40, .end = 0x5f, .flags = IORESOURCE_BUSY },
-	{ .name = "keyboard", .start = 0x60, .end = 0x6f, .flags = IORESOURCE_BUSY },
-	{ .name = "dma page reg", .start = 0x80, .end = 0x8f, .flags = IORESOURCE_BUSY },
-	{ .name = "dma2", .start = 0xc0, .end = 0xdf, .flags = IORESOURCE_BUSY },
+	{
+		.name = "dma1",
+		.start = 0x00,
+		.end = 0x1f,
+		.flags = IORESOURCE_BUSY
+	},
+	{
+		.name = "timer",
+		.start = 0x40,
+		.end = 0x5f,
+		.flags = IORESOURCE_BUSY
+	},
+	{
+		.name = "keyboard",
+		.start = 0x60,
+		.end = 0x6f,
+		.flags = IORESOURCE_BUSY
+	},
+	{
+		.name = "dma page reg",
+		.start = 0x80,
+		.end = 0x8f,
+		.flags = IORESOURCE_BUSY
+	},
+	{
+		.name = "dma2",
+		.start = 0xc0,
+		.end = 0xdf,
+		.flags = IORESOURCE_BUSY
+	},
 };
 
 const char *get_system_type(void)
@@ -171,15 +196,18 @@ void __init plat_mem_setup(void)
 #ifdef CONFIG_VT
 #if defined(CONFIG_VGA_CONSOLE)
 	screen_info = (struct screen_info) {
-		0, 25,			/* orig-x, orig-y */
-		0,			/* unused */
-		0,			/* orig-video-page */
-		0,			/* orig-video-mode */
-		80,			/* orig-video-cols */
-		0, 0, 0,		/* ega_ax, ega_bx, ega_cx */
-		25,			/* orig-video-lines */
-		VIDEO_TYPE_VGAC,	/* orig-video-isVGA */
-		16			/* orig-video-points */
+		.orig_x = 0,
+		.orig_y = 25,
+		.ext_mem_k = 0,
+		.orig_video_page = 0,
+		.orig_video_mode = 0,
+		.orig_video_cols = 80,
+		.unused2 = 0,
+		.orig_video_ega_bx = 0,
+		.unused3 = 0,
+		.orig_video_lines = 25,
+		.orig_video_isVGA = VIDEO_TYPE_VGAC,
+		.orig_video_points = 16
 	};
 #endif
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 8216d348e374b369338f015ca34492de1e381214 Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:42 +0300
Subject: [MIPS] Malta: use the KERN_ facility level in printk()

This patch adds the KERN_ macros to printk() calls. Where applicable,
spaces are replaced by tabs.

These changes noticeably reduce the number of errors and warnings
reported by the checkpatch.pl script for the malta_int.c file.

Before the patch: total: 47 errors, 20 warnings, 354 lines checked

After the patch: total: 34 errors, 7 warnings, 355 lines checked

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_int.c | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index f010261b75d8..2483b4068e2d 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -83,7 +83,7 @@ static inline int mips_pcibios_iack(void)
 		BONITO_PCIMAP_CFG = 0;
 		break;
 	default:
-	        printk("Unknown system controller.\n");
+		printk(KERN_WARNING "Unknown system controller.\n");
 		return -1;
 	}
 	return irq;
@@ -127,8 +127,8 @@ static void corehi_irqdispatch(void)
 	unsigned int intrcause, datalo, datahi;
 	struct pt_regs *regs = get_irq_regs();
 
-        printk("CoreHI interrupt, shouldn't happen, so we die here!!!\n");
-        printk("epc   : %08lx\nStatus: %08lx\n"
+	printk(KERN_EMERG "CoreHI interrupt, shouldn't happen, we die here!\n");
+	printk(KERN_EMERG "epc   : %08lx\nStatus: %08lx\n"
 	       "Cause : %08lx\nbadVaddr : %08lx\n",
 	       regs->cp0_epc, regs->cp0_status,
 	       regs->cp0_cause, regs->cp0_badvaddr);
@@ -149,8 +149,9 @@ static void corehi_irqdispatch(void)
                 intrcause = GT_READ(GT_INTRCAUSE_OFS);
                 datalo = GT_READ(GT_CPUERR_ADDRLO_OFS);
                 datahi = GT_READ(GT_CPUERR_ADDRHI_OFS);
-                printk("GT_INTRCAUSE = %08x\n", intrcause);
-                printk("GT_CPUERR_ADDR = %02x%08x\n", datahi, datalo);
+		printk(KERN_EMERG "GT_INTRCAUSE = %08x\n", intrcause);
+		printk(KERN_EMERG "GT_CPUERR_ADDR = %02x%08x\n",
+				datahi, datalo);
                 break;
         case MIPS_REVISION_SCON_BONITO:
                 pcibadaddr = BONITO_PCIBADADDR;
@@ -161,14 +162,14 @@ static void corehi_irqdispatch(void)
                 intedge = BONITO_INTEDGE;
                 intsteer = BONITO_INTSTEER;
                 pcicmd = BONITO_PCICMD;
-                printk("BONITO_INTISR = %08x\n", intisr);
-                printk("BONITO_INTEN = %08x\n", inten);
-                printk("BONITO_INTPOL = %08x\n", intpol);
-                printk("BONITO_INTEDGE = %08x\n", intedge);
-                printk("BONITO_INTSTEER = %08x\n", intsteer);
-                printk("BONITO_PCICMD = %08x\n", pcicmd);
-                printk("BONITO_PCIBADADDR = %08x\n", pcibadaddr);
-                printk("BONITO_PCIMSTAT = %08x\n", pcimstat);
+		printk(KERN_EMERG "BONITO_INTISR = %08x\n", intisr);
+		printk(KERN_EMERG "BONITO_INTEN = %08x\n", inten);
+		printk(KERN_EMERG "BONITO_INTPOL = %08x\n", intpol);
+		printk(KERN_EMERG "BONITO_INTEDGE = %08x\n", intedge);
+		printk(KERN_EMERG "BONITO_INTSTEER = %08x\n", intsteer);
+		printk(KERN_EMERG "BONITO_PCICMD = %08x\n", pcicmd);
+		printk(KERN_EMERG "BONITO_PCIBADADDR = %08x\n", pcibadaddr);
+		printk(KERN_EMERG "BONITO_PCIMSTAT = %08x\n", pcimstat);
                 break;
         }
 
-- 
cgit v1.2.3-59-g8ed1b


From f3a4ce9587cd1e810f31c87ecb89033d5fd269ce Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:43 +0300
Subject: [MIPS] Malta: check the PCI clock frequency in a separate function

This patch adds a separate short and sweet function to check the
PCI clock frequency. This is to improve readability of the Malta
setup code.

Along the way, a couple of coding style violations are fixed.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_setup.c | 43 ++++++++++++++++++-------------
 1 file changed, 25 insertions(+), 18 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index d051405a2809..79d74ea75bc4 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -108,6 +108,30 @@ void __init fd_activate(void)
 }
 #endif
 
+#ifdef CONFIG_BLK_DEV_IDE
+static void __init pci_clock_check(void)
+{
+	unsigned int __iomem *jmpr_p =
+		(unsigned int *) ioremap(MALTA_JMPRS_REG, sizeof(unsigned int));
+	int jmpr = (__raw_readl(jmpr_p) >> 2) & 0x07;
+	static const int pciclocks[] __initdata = {
+		33, 20, 25, 30, 12, 16, 37, 10
+	};
+	int pciclock = pciclocks[jmpr];
+	char *argptr = prom_getcmdline();
+
+	if (pciclock != 33 && !strstr(argptr, "idebus=")) {
+		printk(KERN_WARNING "WARNING: PCI clock is %dMHz, "
+				"setting idebus\n", pciclock);
+		argptr += strlen(argptr);
+		sprintf(argptr, " idebus=%d", pciclock);
+		if (pciclock < 20 || pciclock > 66)
+			printk(KERN_WARNING "WARNING: IDE timing "
+					"calculations will be incorrect\n");
+	}
+}
+#endif
+
 void __init plat_mem_setup(void)
 {
 	unsigned int i;
@@ -171,24 +195,7 @@ void __init plat_mem_setup(void)
 #endif
 
 #ifdef CONFIG_BLK_DEV_IDE
-	/* Check PCI clock */
-	{
-		unsigned int __iomem *jmpr_p = (unsigned int *) ioremap(MALTA_JMPRS_REG, sizeof(unsigned int));
-		int jmpr = (__raw_readl(jmpr_p) >> 2) & 0x07;
-		static const int pciclocks[] __initdata = {
-			33, 20, 25, 30, 12, 16, 37, 10
-		};
-		int pciclock = pciclocks[jmpr];
-		char *argptr = prom_getcmdline();
-
-		if (pciclock != 33 && !strstr (argptr, "idebus=")) {
-			printk("WARNING: PCI clock is %dMHz, setting idebus\n", pciclock);
-			argptr += strlen(argptr);
-			sprintf(argptr, " idebus=%d", pciclock);
-			if (pciclock < 20 || pciclock > 66)
-				printk("WARNING: IDE timing calculations will be incorrect\n");
-		}
-	}
+	pci_clock_check();
 #endif
 #ifdef CONFIG_BLK_DEV_FD
 	fd_activate();
-- 
cgit v1.2.3-59-g8ed1b


From a382963edc55815b9ec56259c87b1405083acadf Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:44 +0300
Subject: [MIPS] Malta: set up the screen info in a separate function

This patch adds a separate short and sweet function to initialize
the screen_info global variable.

This improves readability of the Malta board setup code.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_setup.c | 39 +++++++++++++++++--------------
 1 file changed, 22 insertions(+), 17 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index 79d74ea75bc4..8b391ee034af 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -132,6 +132,26 @@ static void __init pci_clock_check(void)
 }
 #endif
 
+#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
+static void __init screen_info_setup(void)
+{
+	screen_info = (struct screen_info) {
+		.orig_x = 0,
+		.orig_y = 25,
+		.ext_mem_k = 0,
+		.orig_video_page = 0,
+		.orig_video_mode = 0,
+		.orig_video_cols = 80,
+		.unused2 = 0,
+		.orig_video_ega_bx = 0,
+		.unused3 = 0,
+		.orig_video_lines = 25,
+		.orig_video_isVGA = VIDEO_TYPE_VGAC,
+		.orig_video_points = 16
+	};
+}
+#endif
+
 void __init plat_mem_setup(void)
 {
 	unsigned int i;
@@ -200,23 +220,8 @@ void __init plat_mem_setup(void)
 #ifdef CONFIG_BLK_DEV_FD
 	fd_activate();
 #endif
-#ifdef CONFIG_VT
-#if defined(CONFIG_VGA_CONSOLE)
-	screen_info = (struct screen_info) {
-		.orig_x = 0,
-		.orig_y = 25,
-		.ext_mem_k = 0,
-		.orig_video_page = 0,
-		.orig_video_mode = 0,
-		.orig_video_cols = 80,
-		.unused2 = 0,
-		.orig_video_ega_bx = 0,
-		.unused3 = 0,
-		.orig_video_lines = 25,
-		.orig_video_isVGA = VIDEO_TYPE_VGAC,
-		.orig_video_points = 16
-	};
-#endif
+#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
+	screen_info_setup();
 #endif
 	mips_reboot_setup();
 }
-- 
cgit v1.2.3-59-g8ed1b


From af825586c04d5ab9871d3980db9a0aa23197789e Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:45 +0300
Subject: [MIPS] Malta: use tabs not spaces

This patch fixes all "use tabs not spaces" warnings reported by
the checkpatch.pl script on the board-specific files.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_int.c  | 64 ++++++++++++++++----------------
 arch/mips/mips-boards/malta/malta_smtc.c |  2 +-
 2 files changed, 33 insertions(+), 33 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index 2483b4068e2d..6d371f4ac358 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -47,7 +47,7 @@ static DEFINE_SPINLOCK(mips_irq_lock);
 static inline int mips_pcibios_iack(void)
 {
 	int irq;
-        u32 dummy;
+	u32 dummy;
 
 	/*
 	 * Determine highest priority pending interrupt by performing
@@ -58,7 +58,7 @@ static inline int mips_pcibios_iack(void)
 	case MIPS_REVISION_SCON_ROCIT:
 	case MIPS_REVISION_SCON_SOCITSC:
 	case MIPS_REVISION_SCON_SOCITSCP:
-	        MSC_READ(MSC01_PCI_IACK, irq);
+		MSC_READ(MSC01_PCI_IACK, irq);
 		irq &= 0xff;
 		break;
 	case MIPS_REVISION_SCON_GT64120:
@@ -123,15 +123,15 @@ static void malta_hw0_irqdispatch(void)
 static void corehi_irqdispatch(void)
 {
 	unsigned int intedge, intsteer, pcicmd, pcibadaddr;
-        unsigned int pcimstat, intisr, inten, intpol;
+	unsigned int pcimstat, intisr, inten, intpol;
 	unsigned int intrcause, datalo, datahi;
 	struct pt_regs *regs = get_irq_regs();
 
 	printk(KERN_EMERG "CoreHI interrupt, shouldn't happen, we die here!\n");
 	printk(KERN_EMERG "epc   : %08lx\nStatus: %08lx\n"
-	       "Cause : %08lx\nbadVaddr : %08lx\n",
-	       regs->cp0_epc, regs->cp0_status,
-	       regs->cp0_cause, regs->cp0_badvaddr);
+			"Cause : %08lx\nbadVaddr : %08lx\n",
+			regs->cp0_epc, regs->cp0_status,
+			regs->cp0_cause, regs->cp0_badvaddr);
 
 	/* Read all the registers and then print them as there is a
 	   problem with interspersed printk's upsetting the Bonito controller.
@@ -139,29 +139,29 @@ static void corehi_irqdispatch(void)
 	*/
 
 	switch (mips_revision_sconid) {
-        case MIPS_REVISION_SCON_SOCIT:
+	case MIPS_REVISION_SCON_SOCIT:
 	case MIPS_REVISION_SCON_ROCIT:
 	case MIPS_REVISION_SCON_SOCITSC:
 	case MIPS_REVISION_SCON_SOCITSCP:
-                ll_msc_irq();
-                break;
-        case MIPS_REVISION_SCON_GT64120:
-                intrcause = GT_READ(GT_INTRCAUSE_OFS);
-                datalo = GT_READ(GT_CPUERR_ADDRLO_OFS);
-                datahi = GT_READ(GT_CPUERR_ADDRHI_OFS);
+		ll_msc_irq();
+		break;
+	case MIPS_REVISION_SCON_GT64120:
+		intrcause = GT_READ(GT_INTRCAUSE_OFS);
+		datalo = GT_READ(GT_CPUERR_ADDRLO_OFS);
+		datahi = GT_READ(GT_CPUERR_ADDRHI_OFS);
 		printk(KERN_EMERG "GT_INTRCAUSE = %08x\n", intrcause);
 		printk(KERN_EMERG "GT_CPUERR_ADDR = %02x%08x\n",
 				datahi, datalo);
-                break;
-        case MIPS_REVISION_SCON_BONITO:
-                pcibadaddr = BONITO_PCIBADADDR;
-                pcimstat = BONITO_PCIMSTAT;
-                intisr = BONITO_INTISR;
-                inten = BONITO_INTEN;
-                intpol = BONITO_INTPOL;
-                intedge = BONITO_INTEDGE;
-                intsteer = BONITO_INTSTEER;
-                pcicmd = BONITO_PCICMD;
+		break;
+	case MIPS_REVISION_SCON_BONITO:
+		pcibadaddr = BONITO_PCIBADADDR;
+		pcimstat = BONITO_PCIMSTAT;
+		intisr = BONITO_INTISR;
+		inten = BONITO_INTEN;
+		intpol = BONITO_INTPOL;
+		intedge = BONITO_INTEDGE;
+		intsteer = BONITO_INTSTEER;
+		pcicmd = BONITO_PCICMD;
 		printk(KERN_EMERG "BONITO_INTISR = %08x\n", intisr);
 		printk(KERN_EMERG "BONITO_INTEN = %08x\n", inten);
 		printk(KERN_EMERG "BONITO_INTPOL = %08x\n", intpol);
@@ -170,11 +170,11 @@ static void corehi_irqdispatch(void)
 		printk(KERN_EMERG "BONITO_PCICMD = %08x\n", pcicmd);
 		printk(KERN_EMERG "BONITO_PCIBADADDR = %08x\n", pcibadaddr);
 		printk(KERN_EMERG "BONITO_PCIMSTAT = %08x\n", pcimstat);
-                break;
-        }
+		break;
+	}
 
-        /* We die here*/
-        die("CoreHi interrupt", regs);
+	/* We die here*/
+	die("CoreHi interrupt", regs);
 }
 
 static inline int clz(unsigned long x)
@@ -300,17 +300,17 @@ void __init arch_init_irq(void)
 	if (!cpu_has_veic)
 		mips_cpu_irq_init();
 
-        switch(mips_revision_sconid) {
-        case MIPS_REVISION_SCON_SOCIT:
-        case MIPS_REVISION_SCON_ROCIT:
+	switch (mips_revision_sconid) {
+	case MIPS_REVISION_SCON_SOCIT:
+	case MIPS_REVISION_SCON_ROCIT:
 		if (cpu_has_veic)
 			init_msc_irqs(MIPS_MSC01_IC_REG_BASE, MSC01E_INT_BASE, msc_eicirqmap, msc_nr_eicirqs);
 		else
 			init_msc_irqs(MIPS_MSC01_IC_REG_BASE, MSC01C_INT_BASE, msc_irqmap, msc_nr_irqs);
 		break;
 
-        case MIPS_REVISION_SCON_SOCITSC:
-        case MIPS_REVISION_SCON_SOCITSCP:
+	case MIPS_REVISION_SCON_SOCITSC:
+	case MIPS_REVISION_SCON_SOCITSCP:
 		if (cpu_has_veic)
 			init_msc_irqs(MIPS_SOCITSC_IC_REG_BASE, MSC01E_INT_BASE, msc_eicirqmap, msc_nr_eicirqs);
 		else
diff --git a/arch/mips/mips-boards/malta/malta_smtc.c b/arch/mips/mips-boards/malta/malta_smtc.c
index 6f051ca243fa..5ea705e49454 100644
--- a/arch/mips/mips-boards/malta/malta_smtc.c
+++ b/arch/mips/mips-boards/malta/malta_smtc.c
@@ -34,7 +34,7 @@ static void msmtc_send_ipi_mask(cpumask_t mask, unsigned int action)
  */
 static void __cpuinit msmtc_init_secondary(void)
 {
-        void smtc_init_secondary(void);
+	void smtc_init_secondary(void);
 	int myvpe;
 
 	/* Don't enable Malta I/O interrupts (IP2) for secondary VPEs */
-- 
cgit v1.2.3-59-g8ed1b


From 82a1791772b3873cbc10152b36cf6cf994a79ff5 Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:46 +0300
Subject: [MIPS] Malta: remove a dead function declaration

Neither is the mips_rtc_get_time() routine defined anywhere in
the MIPS architecture-specific code, nor does anyone call it any
more. This patch removes the extern declaration of this fossil.

This patch does not introduce any functional changes.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_setup.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index 8b391ee034af..480521f05b8c 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -36,7 +36,6 @@
 #endif
 
 extern void mips_reboot_setup(void);
-extern unsigned long mips_rtc_get_time(void);
 
 #ifdef CONFIG_KGDB
 extern void kgdb_config(void);
-- 
cgit v1.2.3-59-g8ed1b


From f80714966795ecfe6261509d0270d9761b07b462 Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:47 +0300
Subject: [MIPS] Malta: fix oversized lines in malta_int.c

This patch fixes all "line over 80 characters" warnings found
in arch/mips/mips-boards/malta/malta_int.c by the checkpatch.pl
script.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_int.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index 6d371f4ac358..1b4b9c507e28 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -304,17 +304,25 @@ void __init arch_init_irq(void)
 	case MIPS_REVISION_SCON_SOCIT:
 	case MIPS_REVISION_SCON_ROCIT:
 		if (cpu_has_veic)
-			init_msc_irqs(MIPS_MSC01_IC_REG_BASE, MSC01E_INT_BASE, msc_eicirqmap, msc_nr_eicirqs);
+			init_msc_irqs(MIPS_MSC01_IC_REG_BASE,
+					MSC01E_INT_BASE, msc_eicirqmap,
+					msc_nr_eicirqs);
 		else
-			init_msc_irqs(MIPS_MSC01_IC_REG_BASE, MSC01C_INT_BASE, msc_irqmap, msc_nr_irqs);
+			init_msc_irqs(MIPS_MSC01_IC_REG_BASE,
+					MSC01C_INT_BASE, msc_irqmap,
+					msc_nr_irqs);
 		break;
 
 	case MIPS_REVISION_SCON_SOCITSC:
 	case MIPS_REVISION_SCON_SOCITSCP:
 		if (cpu_has_veic)
-			init_msc_irqs(MIPS_SOCITSC_IC_REG_BASE, MSC01E_INT_BASE, msc_eicirqmap, msc_nr_eicirqs);
+			init_msc_irqs(MIPS_SOCITSC_IC_REG_BASE,
+					MSC01E_INT_BASE, msc_eicirqmap,
+					msc_nr_eicirqs);
 		else
-			init_msc_irqs(MIPS_SOCITSC_IC_REG_BASE, MSC01C_INT_BASE, msc_irqmap, msc_nr_irqs);
+			init_msc_irqs(MIPS_SOCITSC_IC_REG_BASE,
+					MSC01C_INT_BASE, msc_irqmap,
+					msc_nr_irqs);
 	}
 
 	if (cpu_has_veic) {
@@ -345,11 +353,13 @@ void __init arch_init_irq(void)
 		}
 #else /* Not SMTC */
 		setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_I8259A, &i8259irq);
-		setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI, &corehi_irqaction);
+		setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI,
+						&corehi_irqaction);
 #endif /* CONFIG_MIPS_MT_SMTC */
 	}
 	else {
 		setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_I8259A, &i8259irq);
-		setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI, &corehi_irqaction);
+		setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI,
+						&corehi_irqaction);
 	}
 }
-- 
cgit v1.2.3-59-g8ed1b


From 1997267072d6bfadb37d336779e6122c2d44343d Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:48 +0300
Subject: [MIPS] Malta, Atlas, Sead: remove an extern from .c files

This patch moves the "extern" declaration for the function
mips_reboot_setup() from the board setup .c files to the
header file include/asm-mips/mips-boards/generic.h.

This fixes a warning produced by the checkpatch.pl script.

No functional changes introduced.

This was compile-tested by building the kernel for all
three boards affected by this change. All builds finished
successfully.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/atlas/atlas_setup.c | 2 --
 arch/mips/mips-boards/malta/malta_setup.c | 2 --
 arch/mips/mips-boards/sead/sead_setup.c   | 2 --
 include/asm-mips/mips-boards/generic.h    | 2 ++
 4 files changed, 2 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/atlas/atlas_setup.c b/arch/mips/mips-boards/atlas/atlas_setup.c
index e405d112a067..5ce800420012 100644
--- a/arch/mips/mips-boards/atlas/atlas_setup.c
+++ b/arch/mips/mips-boards/atlas/atlas_setup.c
@@ -34,8 +34,6 @@
 #include <asm/time.h>
 #include <asm/traps.h>
 
-extern void mips_reboot_setup(void);
-
 #ifdef CONFIG_KGDB
 extern void kgdb_config(void);
 #endif
diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index 480521f05b8c..e5ac079e47e0 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -35,8 +35,6 @@
 #include <linux/console.h>
 #endif
 
-extern void mips_reboot_setup(void);
-
 #ifdef CONFIG_KGDB
 extern void kgdb_config(void);
 #endif
diff --git a/arch/mips/mips-boards/sead/sead_setup.c b/arch/mips/mips-boards/sead/sead_setup.c
index 1fb61b852304..8aa8e5b7b074 100644
--- a/arch/mips/mips-boards/sead/sead_setup.c
+++ b/arch/mips/mips-boards/sead/sead_setup.c
@@ -34,8 +34,6 @@
 #include <asm/mips-boards/seadint.h>
 #include <asm/time.h>
 
-extern void mips_reboot_setup(void);
-
 static void __init serial_init(void);
 
 const char *get_system_type(void)
diff --git a/include/asm-mips/mips-boards/generic.h b/include/asm-mips/mips-boards/generic.h
index d58977483534..2ca6bda37d1c 100644
--- a/include/asm-mips/mips-boards/generic.h
+++ b/include/asm-mips/mips-boards/generic.h
@@ -97,6 +97,8 @@ extern int mips_revision_corid;
 
 extern int mips_revision_sconid;
 
+extern void mips_reboot_setup(void);
+
 #ifdef CONFIG_PCI
 extern void mips_pcibios_init(void);
 #else
-- 
cgit v1.2.3-59-g8ed1b


From 54bf038e2216212b1728861b1a15fc0cc1ad1d2e Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:49 +0300
Subject: [MIPS] Malta: include <linux/cpu.h> instead of <asm/cpu.h>

The checkpatch.pl script reported a few warnings about header files.
This patch fixes these warnings.

Compile-tested using the default Malta config.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_int.c   | 2 +-
 arch/mips/mips-boards/malta/malta_setup.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index 1b4b9c507e28..41eb2321c329 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -26,13 +26,13 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
+#include <linux/io.h>
 #include <linux/kernel_stat.h>
 #include <linux/kernel.h>
 #include <linux/random.h>
 
 #include <asm/i8259.h>
 #include <asm/irq_cpu.h>
-#include <asm/io.h>
 #include <asm/irq_regs.h>
 #include <asm/mips-boards/malta.h>
 #include <asm/mips-boards/maltaint.h>
diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index e5ac079e47e0..3e2de0b8e2cf 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -15,21 +15,21 @@
  *  with this program; if not, write to the Free Software Foundation, Inc.,
  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  */
+#include <linux/cpu.h>
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/ioport.h>
+#include <linux/irq.h>
 #include <linux/pci.h>
 #include <linux/screen_info.h>
+#include <linux/time.h>
 
-#include <asm/cpu.h>
 #include <asm/bootinfo.h>
-#include <asm/irq.h>
 #include <asm/mips-boards/generic.h>
 #include <asm/mips-boards/prom.h>
 #include <asm/mips-boards/malta.h>
 #include <asm/mips-boards/maltaint.h>
 #include <asm/dma.h>
-#include <asm/time.h>
 #include <asm/traps.h>
 #ifdef CONFIG_VT
 #include <linux/console.h>
-- 
cgit v1.2.3-59-g8ed1b


From a6352cddc743300b0b64b5fd8dfb688524e884e9 Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:50 +0300
Subject: [MIPS] Malta: remove a superfluous comment

Using the "We die here" comment right before calling the die()
function is an extremely vivid example of overcommenting.

Remove the redundant comment and save one line.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_int.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index 41eb2321c329..a2689129798a 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -173,7 +173,6 @@ static void corehi_irqdispatch(void)
 		break;
 	}
 
-	/* We die here*/
 	die("CoreHi interrupt", regs);
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 52b3fc04ba3289ffa42fac84bfa35ef2613fc917 Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:51 +0300
Subject: [MIPS] Malta: else should follow close brace in malta_int.c

This patch fixes two errors reported by checkpatch.pl.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_int.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index a2689129798a..2473a77cea60 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -329,8 +329,7 @@ void __init arch_init_irq(void)
 		set_vi_handler(MSC01E_INT_COREHI, corehi_irqdispatch);
 		setup_irq(MSC01E_INT_BASE+MSC01E_INT_I8259A, &i8259irq);
 		setup_irq(MSC01E_INT_BASE+MSC01E_INT_COREHI, &corehi_irqaction);
-	}
-	else if (cpu_has_vint) {
+	} else if (cpu_has_vint) {
 		set_vi_handler(MIPSCPU_INT_I8259A, malta_hw0_irqdispatch);
 		set_vi_handler(MIPSCPU_INT_COREHI, corehi_irqdispatch);
 #ifdef CONFIG_MIPS_MT_SMTC
@@ -355,8 +354,7 @@ void __init arch_init_irq(void)
 		setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI,
 						&corehi_irqaction);
 #endif /* CONFIG_MIPS_MT_SMTC */
-	}
-	else {
+	} else {
 		setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_I8259A, &i8259irq);
 		setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI,
 						&corehi_irqaction);
-- 
cgit v1.2.3-59-g8ed1b


From ae9cef0b7949c0d528962127f2bccf7c753949df Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:52 +0300
Subject: [MIPS] Malta: Use C89 style for comments

Remove comments in C99 style and make checkpatch.pl happy.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_int.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index 2473a77cea60..92e6e2d7b7f3 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -214,9 +214,9 @@ static inline unsigned int irq_ffs(unsigned int pending)
 
 	t0 = pending & 0x8000;
 	t0 = t0 < 1;
-	//t0 = t0 << 2;
+	/* t0 = t0 << 2; */
 	a0 = a0 - t0;
-	//pending = pending << t0;
+	/* pending = pending << t0; */
 
 	return a0;
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From bbdda5e1fe9c1a5b34a2b552910f5f4c0dc24485 Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:53 +0300
Subject: [MIPS] Malta, Atlas: move an extern function declaration to the
 header file

This was compile-tested using default configs for the boards
affected by this change.

This patch does not introduce any functional changes.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/atlas/atlas_setup.c | 4 ----
 arch/mips/mips-boards/malta/malta_setup.c | 4 ----
 include/asm-mips/mips-boards/generic.h    | 4 ++++
 3 files changed, 4 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/atlas/atlas_setup.c b/arch/mips/mips-boards/atlas/atlas_setup.c
index 5ce800420012..5c500802271e 100644
--- a/arch/mips/mips-boards/atlas/atlas_setup.c
+++ b/arch/mips/mips-boards/atlas/atlas_setup.c
@@ -34,10 +34,6 @@
 #include <asm/time.h>
 #include <asm/traps.h>
 
-#ifdef CONFIG_KGDB
-extern void kgdb_config(void);
-#endif
-
 static void __init serial_init(void);
 
 const char *get_system_type(void)
diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index 3e2de0b8e2cf..8dacb6adb6db 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -35,10 +35,6 @@
 #include <linux/console.h>
 #endif
 
-#ifdef CONFIG_KGDB
-extern void kgdb_config(void);
-#endif
-
 struct resource standard_io_resources[] = {
 	{
 		.name = "dma1",
diff --git a/include/asm-mips/mips-boards/generic.h b/include/asm-mips/mips-boards/generic.h
index 2ca6bda37d1c..1c39d339521e 100644
--- a/include/asm-mips/mips-boards/generic.h
+++ b/include/asm-mips/mips-boards/generic.h
@@ -105,4 +105,8 @@ extern void mips_pcibios_init(void);
 #define mips_pcibios_init() do { } while (0)
 #endif
 
+#ifdef CONFIG_KGDB
+extern void kgdb_config(void);
+#endif
+
 #endif  /* __ASM_MIPS_BOARDS_GENERIC_H */
-- 
cgit v1.2.3-59-g8ed1b


From cd80d548594aae0ee915e01050279399cb14943b Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:54 +0300
Subject: [MIPS] Malta: fix braces at single statement blocks

This patch fixes a couple of warnings reported by checkpatch.pl.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_int.c   | 3 ++-
 arch/mips/mips-boards/malta/malta_setup.c | 3 +--
 2 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index 92e6e2d7b7f3..dbe60eb55e29 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -114,7 +114,8 @@ static void malta_hw0_irqdispatch(void)
 
 	irq = get_int();
 	if (irq < 0) {
-		return;  /* interrupt has already been cleared */
+		/* interrupt has already been cleared */
+		return;
 	}
 
 	do_IRQ(MALTA_INT_BASE + irq);
diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index 8dacb6adb6db..8d62966dcabb 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -202,9 +202,8 @@ void __init plat_mem_setup(void)
 #endif
 	}
 #ifdef CONFIG_DMA_COHERENT
-	else {
+	else
 		panic("Hardware DMA cache coherency not supported");
-	}
 #endif
 
 #ifdef CONFIG_BLK_DEV_IDE
-- 
cgit v1.2.3-59-g8ed1b


From ef7645cfe6f785de3bdc2ae6016924f46f614d61 Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:55 +0300
Subject: [MIPS] Malta: make the helper function static

One helper function can become static. This patch adds the needed
keyword.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_setup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index 8d62966dcabb..541f4e76747f 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -80,7 +80,7 @@ const char display_string[] = "        LINUX ON MALTA       ";
 #endif /* CONFIG_MIPS_MT_SMTC */
 
 #ifdef CONFIG_BLK_DEV_FD
-void __init fd_activate(void)
+static void __init fd_activate(void)
 {
 	/*
 	 * Activate Floppy Controller in the SMSC FDC37M817 Super I/O
-- 
cgit v1.2.3-59-g8ed1b


From 750dc31c480e5062b526134f090a029afd7e17fd Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Date: Thu, 24 Jan 2008 19:52:56 +0300
Subject: [MIPS] Malta: remaining bits of the board support code cleanup

This patch factors out the code, which handles the Bonito system
controller. The case of not supporting the DMA coherency is handled
separately to make the logic obvious. Besides, a couple of empty
lines added to beautify the code even further.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/mips-boards/malta/malta_setup.c | 80 ++++++++++++++++---------------
 1 file changed, 42 insertions(+), 38 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index 541f4e76747f..2cd8f5734b36 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -1,6 +1,7 @@
 /*
  * Carsten Langgaard, carstenl@mips.com
  * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
+ * Copyright (C) Dmitri Vorobiev
  *
  *  This program is free software; you can distribute it and/or modify it
  *  under the terms of the GNU General Public License (Version 2) as
@@ -145,6 +146,41 @@ static void __init screen_info_setup(void)
 }
 #endif
 
+static void __init bonito_quirks_setup(void)
+{
+	char *argptr;
+
+	argptr = prom_getcmdline();
+	if (strstr(argptr, "debug")) {
+		BONITO_BONGENCFG |= BONITO_BONGENCFG_DEBUGMODE;
+		printk(KERN_INFO "Enabled Bonito debug mode\n");
+	} else
+		BONITO_BONGENCFG &= ~BONITO_BONGENCFG_DEBUGMODE;
+
+#ifdef CONFIG_DMA_COHERENT
+	if (BONITO_PCICACHECTRL & BONITO_PCICACHECTRL_CPUCOH_PRES) {
+		BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_CPUCOH_EN;
+		printk(KERN_INFO "Enabled Bonito CPU coherency\n");
+
+		argptr = prom_getcmdline();
+		if (strstr(argptr, "iobcuncached")) {
+			BONITO_PCICACHECTRL &= ~BONITO_PCICACHECTRL_IOBCCOH_EN;
+			BONITO_PCIMEMBASECFG = BONITO_PCIMEMBASECFG &
+				~(BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
+					BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
+			printk(KERN_INFO "Disabled Bonito IOBC coherency\n");
+		} else {
+			BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_IOBCCOH_EN;
+			BONITO_PCIMEMBASECFG |=
+				(BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
+					BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
+			printk(KERN_INFO "Enabled Bonito IOBC coherency\n");
+		}
+	} else
+		panic("Hardware DMA cache coherency not supported");
+#endif
+}
+
 void __init plat_mem_setup(void)
 {
 	unsigned int i;
@@ -164,54 +200,22 @@ void __init plat_mem_setup(void)
 	kgdb_config();
 #endif
 
-	if (mips_revision_sconid == MIPS_REVISION_SCON_BONITO) {
-		char *argptr;
-
-		argptr = prom_getcmdline();
-		if (strstr(argptr, "debug")) {
-			BONITO_BONGENCFG |= BONITO_BONGENCFG_DEBUGMODE;
-			printk("Enabled Bonito debug mode\n");
-		}
-		else
-			BONITO_BONGENCFG &= ~BONITO_BONGENCFG_DEBUGMODE;
-
 #ifdef CONFIG_DMA_COHERENT
-		if (BONITO_PCICACHECTRL & BONITO_PCICACHECTRL_CPUCOH_PRES) {
-			BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_CPUCOH_EN;
-			printk("Enabled Bonito CPU coherency\n");
-
-			argptr = prom_getcmdline();
-			if (strstr(argptr, "iobcuncached")) {
-				BONITO_PCICACHECTRL &= ~BONITO_PCICACHECTRL_IOBCCOH_EN;
-				BONITO_PCIMEMBASECFG = BONITO_PCIMEMBASECFG &
-					~(BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
-					  BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
-				printk("Disabled Bonito IOBC coherency\n");
-			}
-			else {
-				BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_IOBCCOH_EN;
-				BONITO_PCIMEMBASECFG |=
-					(BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
-					 BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
-				printk("Enabled Bonito IOBC coherency\n");
-			}
-		}
-		else
-			panic("Hardware DMA cache coherency not supported");
-
-#endif
-	}
-#ifdef CONFIG_DMA_COHERENT
-	else
+	if (mips_revision_sconid != MIPS_REVISION_SCON_BONITO)
 		panic("Hardware DMA cache coherency not supported");
 #endif
 
+	if (mips_revision_sconid == MIPS_REVISION_SCON_BONITO)
+		bonito_quirks_setup();
+
 #ifdef CONFIG_BLK_DEV_IDE
 	pci_clock_check();
 #endif
+
 #ifdef CONFIG_BLK_DEV_FD
 	fd_activate();
 #endif
+
 #if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
 	screen_info_setup();
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From ec04b13f67be3c90b38c625f4b8bdfea54c1ff60 Mon Sep 17 00:00:00 2001
From: Balaji Rao <balajirrao@gmail.com>
Date: Fri, 28 Dec 2007 14:26:24 +0530
Subject: lguest: Reboot support

Reboot Implemented

(Prevent fd leak, fix style and fix documentation --RR)

Signed-off-by: Balaji Rao <balajirrao@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 Documentation/lguest/lguest.c  | 32 ++++++++++++++++++++++++++++++--
 arch/x86/lguest/boot.c         | 11 +++++++++--
 drivers/lguest/core.c          |  2 ++
 drivers/lguest/hypercalls.c    |  6 ++++--
 include/asm-x86/lguest_hcall.h |  6 +++++-
 5 files changed, 50 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c
index 9b0e322118b5..86cac3e622ab 100644
--- a/Documentation/lguest/lguest.c
+++ b/Documentation/lguest/lguest.c
@@ -153,6 +153,9 @@ struct virtqueue
 	void (*handle_output)(int fd, struct virtqueue *me);
 };
 
+/* Remember the arguments to the program so we can "reboot" */
+static char **main_args;
+
 /* Since guest is UP and we don't run at the same time, we don't need barriers.
  * But I include them in the code in case others copy it. */
 #define wmb()
@@ -1489,7 +1492,9 @@ static void setup_block_file(const char *filename)
 
 	/* Create stack for thread and run it */
 	stack = malloc(32768);
-	if (clone(io_thread, stack + 32768, CLONE_VM, dev) == -1)
+	/* SIGCHLD - We dont "wait" for our cloned thread, so prevent it from
+	 * becoming a zombie. */
+	if (clone(io_thread, stack + 32768,  CLONE_VM | SIGCHLD, dev) == -1)
 		err(1, "Creating clone");
 
 	/* We don't need to keep the I/O thread's end of the pipes open. */
@@ -1499,7 +1504,21 @@ static void setup_block_file(const char *filename)
 	verbose("device %u: virtblock %llu sectors\n",
 		devices.device_num, cap);
 }
-/* That's the end of device setup. */
+/* That's the end of device setup. :*/
+
+/* Reboot */
+static void __attribute__((noreturn)) restart_guest(void)
+{
+	unsigned int i;
+
+	/* Closing pipes causes the waker thread and io_threads to die, and
+	 * closing /dev/lguest cleans up the Guest.  Since we don't track all
+	 * open fds, we simply close everything beyond stderr. */
+	for (i = 3; i < FD_SETSIZE; i++)
+		close(i);
+	execv(main_args[0], main_args);
+	err(1, "Could not exec %s", main_args[0]);
+}
 
 /*L:220 Finally we reach the core of the Launcher, which runs the Guest, serves
  * its input and output, and finally, lays it to rest. */
@@ -1523,6 +1542,9 @@ static void __attribute__((noreturn)) run_guest(int lguest_fd)
 			char reason[1024] = { 0 };
 			read(lguest_fd, reason, sizeof(reason)-1);
 			errx(1, "%s", reason);
+		/* ERESTART means that we need to reboot the guest */
+		} else if (errno == ERESTART) {
+			restart_guest();
 		/* EAGAIN means the Waker wanted us to look at some input.
 		 * Anything else means a bug or incompatible change. */
 		} else if (errno != EAGAIN)
@@ -1571,6 +1593,12 @@ int main(int argc, char *argv[])
 	/* If they specify an initrd file to load. */
 	const char *initrd_name = NULL;
 
+	/* Save the args: we "reboot" by execing ourselves again. */
+	main_args = argv;
+	/* We don't "wait" for the children, so prevent them from becoming
+	 * zombies. */
+	signal(SIGCHLD, SIG_IGN);
+
 	/* First we initialize the device list.  Since console and network
 	 * device receive input from a file descriptor, we keep an fdset
 	 * (infds) and the maximum fd number (max_infd) with the head of the
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 92c56117eae5..d6b18e2e5431 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -67,6 +67,7 @@
 #include <asm/mce.h>
 #include <asm/io.h>
 #include <asm/i387.h>
+#include <asm/reboot.h>		/* for struct machine_ops */
 
 /*G:010 Welcome to the Guest!
  *
@@ -812,7 +813,7 @@ static void lguest_safe_halt(void)
  * rather than virtual addresses, so we use __pa() here. */
 static void lguest_power_off(void)
 {
-	hcall(LHCALL_CRASH, __pa("Power down"), 0, 0);
+	hcall(LHCALL_SHUTDOWN, __pa("Power down"), LGUEST_SHUTDOWN_POWEROFF, 0);
 }
 
 /*
@@ -822,7 +823,7 @@ static void lguest_power_off(void)
  */
 static int lguest_panic(struct notifier_block *nb, unsigned long l, void *p)
 {
-	hcall(LHCALL_CRASH, __pa(p), 0, 0);
+	hcall(LHCALL_SHUTDOWN, __pa(p), LGUEST_SHUTDOWN_POWEROFF, 0);
 	/* The hcall won't return, but to keep gcc happy, we're "done". */
 	return NOTIFY_DONE;
 }
@@ -926,6 +927,11 @@ static unsigned lguest_patch(u8 type, u16 clobber, void *ibuf,
 	return insn_len;
 }
 
+static void lguest_restart(char *reason)
+{
+	hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0);
+}
+
 /*G:030 Once we get to lguest_init(), we know we're a Guest.  The pv_ops
  * structures in the kernel provide points for (almost) every routine we have
  * to override to avoid privileged instructions. */
@@ -1059,6 +1065,7 @@ __init void lguest_init(void)
 	 * the Guest routine to power off. */
 	pm_power_off = lguest_power_off;
 
+	machine_ops.restart = lguest_restart;
 	/* Now we're set up, call start_kernel() in init/main.c and we proceed
 	 * to boot as normal.  It never returns. */
 	start_kernel();
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
index f10abc8d7635..c1069bceba11 100644
--- a/drivers/lguest/core.c
+++ b/drivers/lguest/core.c
@@ -235,6 +235,8 @@ int run_guest(struct lguest *lg, unsigned long __user *user)
 		lguest_arch_handle_trap(lg);
 	}
 
+	if (lg->dead == ERR_PTR(-ERESTART))
+		return -ERESTART;
 	/* The Guest is dead => "No such file or directory" */
 	return -ENOENT;
 }
diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c
index b478affe8f91..05fad6fa8049 100644
--- a/drivers/lguest/hypercalls.c
+++ b/drivers/lguest/hypercalls.c
@@ -41,8 +41,8 @@ static void do_hcall(struct lguest *lg, struct hcall_args *args)
 		 * do that. */
 		kill_guest(lg, "already have lguest_data");
 		break;
-	case LHCALL_CRASH: {
-		/* Crash is such a trivial hypercall that we do it in four
+	case LHCALL_SHUTDOWN: {
+		/* Shutdown is such a trivial hypercall that we do it in four
 		 * lines right here. */
 		char msg[128];
 		/* If the lgread fails, it will call kill_guest() itself; the
@@ -50,6 +50,8 @@ static void do_hcall(struct lguest *lg, struct hcall_args *args)
 		__lgread(lg, msg, args->arg1, sizeof(msg));
 		msg[sizeof(msg)-1] = '\0';
 		kill_guest(lg, "CRASH: %s", msg);
+		if (args->arg2 == LGUEST_SHUTDOWN_RESTART)
+			lg->dead = ERR_PTR(-ERESTART);
 		break;
 	}
 	case LHCALL_FLUSH_TLB:
diff --git a/include/asm-x86/lguest_hcall.h b/include/asm-x86/lguest_hcall.h
index 2091779e91fb..758b9a5d4539 100644
--- a/include/asm-x86/lguest_hcall.h
+++ b/include/asm-x86/lguest_hcall.h
@@ -4,7 +4,7 @@
 
 #define LHCALL_FLUSH_ASYNC	0
 #define LHCALL_LGUEST_INIT	1
-#define LHCALL_CRASH		2
+#define LHCALL_SHUTDOWN		2
 #define LHCALL_LOAD_GDT		3
 #define LHCALL_NEW_PGTABLE	4
 #define LHCALL_FLUSH_TLB	5
@@ -20,6 +20,10 @@
 
 #define LGUEST_TRAP_ENTRY 0x1F
 
+/* Argument number 3 to LHCALL_LGUEST_SHUTDOWN */
+#define LGUEST_SHUTDOWN_POWEROFF	1
+#define LGUEST_SHUTDOWN_RESTART		2
+
 #ifndef __ASSEMBLY__
 #include <asm/hw_irq.h>
 
-- 
cgit v1.2.3-59-g8ed1b


From 213eca7f4888e9817e8076cdab6b9f7295c181f6 Mon Sep 17 00:00:00 2001
From: Greg KH <gregkh@suse.de>
Date: Wed, 30 Jan 2008 13:29:58 +0100
Subject: kobj: fix threshold_init_device/kobject_uevent_env oops

the logic in this function is just crazy.  It's recursive, but we
can circumvent the creation for the kobject and whole creation of the
threshold_block if some conditions are met.  That's why we see the
allocate_threshold_blocks so many times in the callstack, yet only a few
kobjects created.

Then we blow up in kobject_uevent_env() on the first debug printk.
Which means that we are just passing in garbage.

Man, this is one time that comments in code would have been very nice to
have, and why forward goto's into major code blocks are just evil...

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/mcheck/mce_amd_64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index 753588755fee..073afa7dd89a 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -450,7 +450,8 @@ recurse:
 	if (err)
 		goto out_free;
 
-	kobject_uevent(&b->kobj, KOBJ_ADD);
+	if (b)
+		kobject_uevent(&b->kobj, KOBJ_ADD);
 
 	return err;
 
-- 
cgit v1.2.3-59-g8ed1b


From b10db7f0d2b589a7f88dc3026e150756cb437a28 Mon Sep 17 00:00:00 2001
From: Pavel Machek <pavel@ucw.cz>
Date: Wed, 30 Jan 2008 13:30:00 +0100
Subject: time: more timer related cleanups

I was confused by FSEC = 10^15 NSEC statement, plus small whitespace
fixes. When there's copyright, there should be GPL.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/hpet.c       | 3 ++-
 arch/x86/kernel/process_64.c | 2 +-
 kernel/softirq.c             | 4 +++-
 kernel/time/tick-sched.c     | 2 +-
 kernel/time/timer_stats.c    | 2 +-
 5 files changed, 8 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 2f99ee206b95..9ec2ab793042 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -16,7 +16,8 @@
 #define HPET_MASK	CLOCKSOURCE_MASK(32)
 #define HPET_SHIFT	22
 
-/* FSEC = 10^-15 NSEC = 10^-9 */
+/* FSEC = 10^-15
+   NSEC = 10^-9 */
 #define FSEC_PER_NSEC	1000000
 
 /*
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index ab79e1dfa023..c2db7ef93565 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -207,7 +207,7 @@ static inline void play_dead(void)
  * low exit latency (ie sit in a loop waiting for
  * somebody to say that they'd like to reschedule)
  */
-void cpu_idle (void)
+void cpu_idle(void)
 {
 	current_thread_info()->status |= TS_POLLING;
 	/* endless idle loop with no priority at all */
diff --git a/kernel/softirq.c b/kernel/softirq.c
index bd89bc4eb0b9..8fe1ff40102d 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -3,7 +3,9 @@
  *
  *	Copyright (C) 1992 Linus Torvalds
  *
- * Rewritten. Old one was good in 2.2, but in 2.3 it was immoral. --ANK (990903)
+ *	Distribute under GPLv2.
+ *
+ *	Rewritten. Old one was good in 2.2, but in 2.3 it was immoral. --ANK (990903)
  */
 
 #include <linux/module.h>
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index d36ee2fd1a3b..49e12f6a4bab 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -9,7 +9,7 @@
  *
  *  Started by: Thomas Gleixner and Ingo Molnar
  *
- *  For licencing details see kernel-base/COPYING
+ *  Distribute under GPLv2.
  */
 #include <linux/cpu.h>
 #include <linux/err.h>
diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
index c36bb7ed0301..417da8c5bc72 100644
--- a/kernel/time/timer_stats.c
+++ b/kernel/time/timer_stats.c
@@ -26,7 +26,7 @@
  * the pid and cmdline from the owner process if applicable.
  *
  * Start/stop data collection:
- * # echo 1[0] >/proc/timer_stats
+ * # echo [1|0] >/proc/timer_stats
  *
  * Display the information collected so far:
  * # cat /proc/timer_stats
-- 
cgit v1.2.3-59-g8ed1b


From 316da3b3fc8efa9a5d2c99e0d449f01ff38c6aba Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:02 +0100
Subject: x86: restrict PIT clocksource usage

PIT clocksource is registered unconditionally even when HPET is enabled
or when PIT is replaced by the local APIC timer. In both cases PIT can
not be used as it is stopped and the readout would be stale.

Prevent registering PIT in those cases.

patch depends on:

  x86: offer is_hpet_enabled() on !CONFIG_HPET_TIMER too

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/i8253.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/i8253.c b/arch/x86/kernel/i8253.c
index a42c80745325..0f8f35458a8f 100644
--- a/arch/x86/kernel/i8253.c
+++ b/arch/x86/kernel/i8253.c
@@ -197,7 +197,15 @@ static struct clocksource clocksource_pit = {
 
 static int __init init_pit_clocksource(void)
 {
-	if (num_possible_cpus() > 1) /* PIT does not scale! */
+	 /*
+	  * Several reasons not to register PIT as a clocksource:
+	  *
+	  * - On SMP PIT does not scale due to i8253_lock
+	  * - when HPET is enabled
+	  * - when local APIC timer is active (PIT is switched off)
+	  */
+	if (num_possible_cpus() > 1 || is_hpet_enabled() ||
+	    pit_clockevent.mode != CLOCK_EVT_MODE_PERIODIC)
 		return 0;
 
 	clocksource_pit.mult = clocksource_hz2mult(CLOCK_TICK_RATE, 20);
-- 
cgit v1.2.3-59-g8ed1b


From 4713e22ce81eb8b3353e16435362eb3d0ec95640 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:02 +0100
Subject: clocksource: add unregister function to disable unusable clocksources

On x86 the PIT might become an unusable clocksource. Add an unregister
function to provide a possibilty to remove the PIT from the list of
available clock sources.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/i8253.c     |  1 +
 include/linux/clocksource.h |  1 +
 kernel/time/clocksource.c   | 15 +++++++++++++++
 3 files changed, 17 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/i8253.c b/arch/x86/kernel/i8253.c
index 0f8f35458a8f..decc5d294d76 100644
--- a/arch/x86/kernel/i8253.c
+++ b/arch/x86/kernel/i8253.c
@@ -13,6 +13,7 @@
 #include <asm/delay.h>
 #include <asm/i8253.h>
 #include <asm/io.h>
+#include <asm/hpet.h>
 
 DEFINE_SPINLOCK(i8253_lock);
 EXPORT_SYMBOL(i8253_lock);
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 07b42153de24..85778a4b1209 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -215,6 +215,7 @@ static inline void clocksource_calculate_interval(struct clocksource *c,
 
 /* used to install a new clocksource */
 extern int clocksource_register(struct clocksource*);
+extern void clocksource_unregister(struct clocksource*);
 extern struct clocksource* clocksource_get_next(void);
 extern void clocksource_change_rating(struct clocksource *cs, int rating);
 extern void clocksource_resume(void);
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index edd5ef8e1765..6e9259a5d501 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -337,6 +337,21 @@ void clocksource_change_rating(struct clocksource *cs, int rating)
 	spin_unlock_irqrestore(&clocksource_lock, flags);
 }
 
+/**
+ * clocksource_unregister - remove a registered clocksource
+ */
+void clocksource_unregister(struct clocksource *cs)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&clocksource_lock, flags);
+	list_del(&cs->list);
+	if (clocksource_override == cs)
+		clocksource_override = NULL;
+	next_clocksource = select_clocksource();
+	spin_unlock_irqrestore(&clocksource_lock, flags);
+}
+
 #ifdef CONFIG_SYSFS
 /**
  * sysfs_show_current_clocksources - sysfs interface for current clocksource
-- 
cgit v1.2.3-59-g8ed1b


From 1a0c009ac53de4a7664a1239936f0bc258133156 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:03 +0100
Subject: x86: unregister PIT clocksource when PIT is disabled

The following scenario might leave PIT as a disfunctional clock source:

    PIT is registered as clocksource
    PM_TIMER is registered as clocksource and enables highres/dyntick mode
    PIT is switched to oneshot mode
    -> now the readout of PIT is bogus, but the user might select PIT
    via the sysfs override, which would break the box as the time
    readout is unusable.

Unregister the PIT clocksource when the PIT clock event device is switched
into shutdown / oneshot mode.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/i8253.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/i8253.c b/arch/x86/kernel/i8253.c
index decc5d294d76..377c3f8411f8 100644
--- a/arch/x86/kernel/i8253.c
+++ b/arch/x86/kernel/i8253.c
@@ -18,6 +18,12 @@
 DEFINE_SPINLOCK(i8253_lock);
 EXPORT_SYMBOL(i8253_lock);
 
+#ifdef CONFIG_X86_32
+static void pit_disable_clocksource(void);
+#else
+static inline void pit_disable_clocksource(void) { }
+#endif
+
 /*
  * HPET replaces the PIT, when enabled. So we need to know, which of
  * the two timers is used
@@ -52,11 +58,13 @@ static void init_pit_timer(enum clock_event_mode mode,
 			outb_p(0, PIT_CH0);
 			outb_p(0, PIT_CH0);
 		}
+		pit_disable_clocksource();
 		break;
 
 	case CLOCK_EVT_MODE_ONESHOT:
 		/* One shot setup */
 		outb_p(0x38, PIT_MODE);
+		pit_disable_clocksource();
 		break;
 
 	case CLOCK_EVT_MODE_RESUME:
@@ -196,6 +204,17 @@ static struct clocksource clocksource_pit = {
 	.shift	= 20,
 };
 
+static void pit_disable_clocksource(void)
+{
+	/*
+	 * Use mult to check whether it is registered or not
+	 */
+	if (clocksource_pit.mult) {
+		clocksource_unregister(&clocksource_pit);
+		clocksource_pit.mult = 0;
+	}
+}
+
 static int __init init_pit_clocksource(void)
 {
 	 /*
-- 
cgit v1.2.3-59-g8ed1b


From e3f37a54f690d3e64995ea7ecea08c5ab3070faf Mon Sep 17 00:00:00 2001
From: Balaji Rao <balajirrao@gmail.com>
Date: Wed, 30 Jan 2008 13:30:03 +0100
Subject: x86: assign IRQs to HPET timers

The userspace API for the HPET (see Documentation/hpet.txt) did not work. The
HPET_IE_ON ioctl was failing as there was no IRQ assigned to the timer
device. This patch fixes it by allocating IRQs to timer blocks in the HPET.

arch/x86/kernel/hpet.c |   13 +++++--------
drivers/char/hpet.c    |   45 ++++++++++++++++++++++++++++++++++++++-------
include/linux/hpet.h   |    2 +-
3 files changed, 44 insertions(+), 16 deletions(-)

Signed-off-by: Balaji Rao <balajirrao@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/hpet.c | 13 +++++--------
 drivers/char/hpet.c    | 45 ++++++++++++++++++++++++++++++++++++++-------
 include/linux/hpet.h   |  2 +-
 3 files changed, 44 insertions(+), 16 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 9ec2ab793042..786aa227afdf 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -117,8 +117,7 @@ int is_hpet_enabled(void)
 static void hpet_reserve_platform_timers(unsigned long id)
 {
 	struct hpet __iomem *hpet = hpet_virt_address;
-	struct hpet_timer __iomem *timer = &hpet->hpet_timers[2];
-	unsigned int nrtimers, i;
+	unsigned int nrtimers;
 	struct hpet_data hd;
 
 	nrtimers = ((id & HPET_ID_NUMBER) >> HPET_ID_NUMBER_SHIFT) + 1;
@@ -133,16 +132,14 @@ static void hpet_reserve_platform_timers(unsigned long id)
 #ifdef CONFIG_HPET_EMULATE_RTC
 	hpet_reserve_timer(&hd, 1);
 #endif
-
 	hd.hd_irq[0] = HPET_LEGACY_8254;
 	hd.hd_irq[1] = HPET_LEGACY_RTC;
 
-	for (i = 2; i < nrtimers; timer++, i++)
-		hd.hd_irq[i] = (timer->hpet_config & Tn_INT_ROUTE_CNF_MASK) >>
-			Tn_INT_ROUTE_CNF_SHIFT;
-
+	/*
+	 * IRQs for the other timers are assigned dynamically
+	 * in hpet_alloc
+	 */
 	hpet_alloc(&hd);
-
 }
 #else
 static void hpet_reserve_platform_timers(unsigned long id) { }
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 4c16778e3f84..593b32cfbc33 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -806,14 +806,14 @@ static unsigned long hpet_calibrate(struct hpets *hpetp)
 
 int hpet_alloc(struct hpet_data *hdp)
 {
-	u64 cap, mcfg;
+	u64 cap, mcfg, hpet_config;
 	struct hpet_dev *devp;
-	u32 i, ntimer;
+	u32 i, ntimer, irq;
 	struct hpets *hpetp;
 	size_t siz;
 	struct hpet __iomem *hpet;
 	static struct hpets *last = NULL;
-	unsigned long period;
+	unsigned long period, irq_bitmap;
 	unsigned long long temp;
 
 	/*
@@ -840,11 +840,41 @@ int hpet_alloc(struct hpet_data *hdp)
 	hpetp->hp_hpet_phys = hdp->hd_phys_address;
 
 	hpetp->hp_ntimer = hdp->hd_nirqs;
+	hpet = hpetp->hp_hpet;
 
-	for (i = 0; i < hdp->hd_nirqs; i++)
-		hpetp->hp_dev[i].hd_hdwirq = hdp->hd_irq[i];
+	/* Assign IRQs statically for legacy devices */
+	hpetp->hp_dev[0].hd_hdwirq = hdp->hd_irq[0];
+	hpetp->hp_dev[1].hd_hdwirq = hdp->hd_irq[1];
 
-	hpet = hpetp->hp_hpet;
+	/* Assign IRQs dynamically for the others */
+	for (i = 2, devp = &hpetp->hp_dev[2]; i < hdp->hd_nirqs; i++, devp++) {
+		struct hpet_timer __iomem *timer;
+
+		timer = &hpet->hpet_timers[devp - hpetp->hp_dev];
+
+		hpet_config = readq(&timer->hpet_config);
+		irq_bitmap = (hpet_config & Tn_INT_ROUTE_CAP_MASK)
+			>> Tn_INT_ROUTE_CAP_SHIFT;
+		if (!irq_bitmap)
+			irq = 0;        /* No valid IRQ Assignable */
+		else {
+			irq = find_first_bit(&irq_bitmap, 32);
+			do {
+				hpet_config |= irq << Tn_INT_ROUTE_CNF_SHIFT;
+				writeq(hpet_config, &timer->hpet_config);
+
+				/*
+				 * Verify whether we have written a valid
+				 * IRQ number by reading it back again
+				 */
+				hpet_config = readq(&timer->hpet_config);
+				if (irq == (hpet_config & Tn_INT_ROUTE_CNF_MASK)
+						>> Tn_INT_ROUTE_CNF_SHIFT)
+					break;  /* Success */
+			} while ((irq = (find_next_bit(&irq_bitmap, 32, irq))));
+		}
+		hpetp->hp_dev[i].hd_hdwirq = irq;
+	}
 
 	cap = readq(&hpet->hpet_cap);
 
@@ -875,7 +905,8 @@ int hpet_alloc(struct hpet_data *hdp)
 		hpetp->hp_which, hdp->hd_phys_address,
 		hpetp->hp_ntimer > 1 ? "s" : "");
 	for (i = 0; i < hpetp->hp_ntimer; i++)
-		printk("%s %d", i > 0 ? "," : "", hdp->hd_irq[i]);
+		printk("%s %d", i > 0 ? "," : "",
+				hpetp->hp_dev[i].hd_hdwirq);
 	printk("\n");
 
 	printk(KERN_INFO "hpet%u: %u %d-bit timers, %Lu Hz\n",
diff --git a/include/linux/hpet.h b/include/linux/hpet.h
index 707f7cb9e795..e3c0b2aa944c 100644
--- a/include/linux/hpet.h
+++ b/include/linux/hpet.h
@@ -64,7 +64,7 @@ struct hpet {
  */
 
 #define	Tn_INT_ROUTE_CAP_MASK		(0xffffffff00000000ULL)
-#define	Tn_INI_ROUTE_CAP_SHIFT		(32UL)
+#define	Tn_INT_ROUTE_CAP_SHIFT		(32UL)
 #define	Tn_FSB_INT_DELCAP_MASK		(0x8000UL)
 #define	Tn_FSB_INT_DELCAP_SHIFT		(15)
 #define	Tn_FSB_EN_CNF_MASK		(0x4000UL)
-- 
cgit v1.2.3-59-g8ed1b


From 37a47db8d7f0f38dac5acf5a13abbc8f401707fa Mon Sep 17 00:00:00 2001
From: Balaji Rao <balajirrao@gmail.com>
Date: Wed, 30 Jan 2008 13:30:03 +0100
Subject: x86: assign IRQs to HPET timers, fix

Looks like IRQ 31 is assigned to timer 3, even without the patch!
I wonder who wrote the number 31. But the manual says that it is
zero by default.

I think we should check whether the timer has been allocated an IRQ before
proceeding to assign one to it.  Here is a patch that does this.

Signed-off-by: Balaji Rao <balajirrao@gmail.com>
Tested-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/hpet.c | 10 +++++-----
 drivers/char/hpet.c    |  6 ++++++
 2 files changed, 11 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 786aa227afdf..a3c56c9b8a02 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -117,7 +117,8 @@ int is_hpet_enabled(void)
 static void hpet_reserve_platform_timers(unsigned long id)
 {
 	struct hpet __iomem *hpet = hpet_virt_address;
-	unsigned int nrtimers;
+	struct hpet_timer __iomem *timer = &hpet->hpet_timers[2];
+	unsigned int nrtimers, i;
 	struct hpet_data hd;
 
 	nrtimers = ((id & HPET_ID_NUMBER) >> HPET_ID_NUMBER_SHIFT) + 1;
@@ -135,10 +136,9 @@ static void hpet_reserve_platform_timers(unsigned long id)
 	hd.hd_irq[0] = HPET_LEGACY_8254;
 	hd.hd_irq[1] = HPET_LEGACY_RTC;
 
-	/*
-	 * IRQs for the other timers are assigned dynamically
-	 * in hpet_alloc
-	 */
+       for (i = 2; i < nrtimers; timer++, i++)
+	       hd.hd_irq[i] = (timer->hpet_config & Tn_INT_ROUTE_CNF_MASK) >>
+		       Tn_INT_ROUTE_CNF_SHIFT;
 	hpet_alloc(&hd);
 }
 #else
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 593b32cfbc33..22f5fd02ea87 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -852,6 +852,12 @@ int hpet_alloc(struct hpet_data *hdp)
 
 		timer = &hpet->hpet_timers[devp - hpetp->hp_dev];
 
+		/* Check if there's already an IRQ assigned to the timer */
+		if (hdp->hd_irq[i]) {
+			hpetp->hp_dev[i].hd_hdwirq = hdp->hd_irq[i];
+			continue;
+		}
+
 		hpet_config = readq(&timer->hpet_config);
 		irq_bitmap = (hpet_config & Tn_INT_ROUTE_CAP_MASK)
 			>> Tn_INT_ROUTE_CAP_SHIFT;
-- 
cgit v1.2.3-59-g8ed1b


From 9484b1eb4d05957d3114dc63026448eb66106c06 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:30:04 +0100
Subject: x86: fix make mrproper

Michael Opdenacker reported:

For backward compatibility with earlier (< 2.6.24) kernels,
arch/i386/boot/bzImage or arch/x86_64/boot/bzImage symbolic links to
arch/x86/boot/bzImage are created when you build an x86 kernel. The
arch/i386 or arch/x86_64 directories are then created for this only
purpose.

Issue: these generated directories and symbolic links are *not cleaned
up* when you run "make mrproper" (and thus "make distclean"). This
disturbs the production of patches, because the source tree is left with
generated files and directories.

Sam has an alternative fix:

The directory is killed during make clean as opposed to make mrproper.

Reported-by: Michael Opdenacker <michael-lists@free-electrons.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Makefile_32 | 3 ++-
 arch/x86/Makefile_64 | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Makefile_32 b/arch/x86/Makefile_32
index 50394da2f6c1..f806ceccff7a 100644
--- a/arch/x86/Makefile_32
+++ b/arch/x86/Makefile_32
@@ -156,7 +156,8 @@ install:
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
 
 archclean:
-	$(Q)rm -rf $(objtree)/arch/i386/boot
+	$(Q)rm -rf $(objtree)/arch/i386
+	$(Q)rm -rf $(objtree)/arch/x86_64
 	$(Q)$(MAKE) $(clean)=arch/x86/boot
 
 define archhelp
diff --git a/arch/x86/Makefile_64 b/arch/x86/Makefile_64
index a804860022e6..93cf17769ff5 100644
--- a/arch/x86/Makefile_64
+++ b/arch/x86/Makefile_64
@@ -123,7 +123,8 @@ endif
 	$(Q)$(MAKE) $(build)=arch/x86/vdso $@
 
 archclean:
-	$(Q)rm -rf $(objtree)/arch/x86_64/boot
+	$(Q)rm -rf $(objtree)/arch/i386
+	$(Q)rm -rf $(objtree)/arch/x86_64
 	$(Q)$(MAKE) $(clean)=$(boot)
 
 define archhelp
-- 
cgit v1.2.3-59-g8ed1b


From 5c9c9bec0589be696c70c5efb448b17d5ab720e2 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Date: Wed, 30 Jan 2008 13:30:04 +0100
Subject: x86: hibernation: document __save_processor_state() on x86

Document the fact that __save_processor_state() has to save all CPU
registers referred to by the kernel in case a different kernel is
used to load and restore a hibernation image containing it.

Sigend-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/suspend_64.c | 20 ++++++++++++++++++++
 include/asm-x86/suspend_64.h |  9 ++++++++-
 2 files changed, 28 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/suspend_64.c b/arch/x86/kernel/suspend_64.c
index 2e5efaaf8800..569f1b540e36 100644
--- a/arch/x86/kernel/suspend_64.c
+++ b/arch/x86/kernel/suspend_64.c
@@ -19,6 +19,21 @@ extern const void __nosave_begin, __nosave_end;
 
 struct saved_context saved_context;
 
+/**
+ *	__save_processor_state - save CPU registers before creating a
+ *		hibernation image and before restoring the memory state from it
+ *	@ctxt - structure to store the registers contents in
+ *
+ *	NOTE: If there is a CPU register the modification of which by the
+ *	boot kernel (ie. the kernel used for loading the hibernation image)
+ *	might affect the operations of the restored target kernel (ie. the one
+ *	saved in the hibernation image), then its contents must be saved by this
+ *	function.  In other words, if kernel A is hibernated and different
+ *	kernel B is used for loading the hibernation image into memory, the
+ *	kernel A's __save_processor_state() function must save all registers
+ *	needed by kernel A, so that it can operate correctly after the resume
+ *	regardless of what kernel B does in the meantime.
+ */
 void __save_processor_state(struct saved_context *ctxt)
 {
 	kernel_fpu_begin();
@@ -69,6 +84,11 @@ static void do_fpu_end(void)
 	kernel_fpu_end();
 }
 
+/**
+ *	__restore_processor_state - restore the contents of CPU registers saved
+ *		by __save_processor_state()
+ *	@ctxt - structure to load the registers contents from
+ */
 void __restore_processor_state(struct saved_context *ctxt)
 {
 	/*
diff --git a/include/asm-x86/suspend_64.h b/include/asm-x86/suspend_64.h
index c505a76bcf6e..4404668f9aa4 100644
--- a/include/asm-x86/suspend_64.h
+++ b/include/asm-x86/suspend_64.h
@@ -15,7 +15,14 @@ arch_prepare_suspend(void)
 	return 0;
 }
 
-/* Image of the saved processor state. If you touch this, fix acpi/wakeup.S. */
+/*
+ * Image of the saved processor state, used by the low level ACPI suspend to
+ * RAM code and by the low level hibernation code.
+ *
+ * If you modify it, fix arch/x86/kernel/acpi/wakeup_64.S and make sure that
+ * __save/__restore_processor_state(), defined in arch/x86/kernel/suspend_64.c,
+ * still work as required.
+ */
 struct saved_context {
 	struct pt_regs regs;
   	u16 ds, es, fs, gs, ss;
-- 
cgit v1.2.3-59-g8ed1b


From 4c6b8b4d62fb4cb843c32db71e0a8301039908f3 Mon Sep 17 00:00:00 2001
From: Mike Galbraith <efault@gmx.de>
Date: Wed, 30 Jan 2008 13:30:04 +0100
Subject: x86: fix: s2ram + P4 + tsc = annoyance

s2ram recently became useful here, except for the kernel's annoying
habit of disabling my P4's perfectly good TSC.

[  107.894470] CPU 1 is now offline
[  107.894474] SMP alternatives: switching to UP code
[  107.895832] CPU0 attaching sched-domain:
[  107.895836]  domain 0: span 1
[  107.895838]   groups: 1
[  107.896097] CPU1 is down
[    3.726156] Intel machine check architecture supported.
[    3.726165] Intel machine check reporting enabled on CPU#0.
[    3.726167] CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
[    3.726170] CPU0: Thermal monitoring enabled
[    3.726175] Back to C!
[    3.726708] Force enabled HPET at resume
[    3.726775] Enabling non-boot CPUs ...
[    3.727049] CPU0 attaching NULL sched-domain.
[    3.727165] SMP alternatives: switching to SMP code
[    3.727858] Booting processor 1/1 eip 3000
[    3.727862] CPU 1 irqstacks, hard=b042f000 soft=b042d000
[    3.738173] Initializing CPU#1
[    3.798912] Calibrating delay using timer specific routine.. 5986.12 BogoMIPS (lpj=2993061)
[    3.798920] CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 00004400 00000000 00000000 00000000
[    3.798931] CPU: Trace cache: 12K uops, L1 D cache: 8K
[    3.798934] CPU: L2 cache: 512K
[    3.798936] CPU: Physical Processor ID: 0
[    3.798938] CPU: After all inits, caps: bfebfbff 00000000 00000000 0000b080 00004400 00000000 00000000 00000000
[    3.798946] Intel machine check architecture supported.
[    3.798952] Intel machine check reporting enabled on CPU#1.
[    3.798955] CPU1: Intel P4/Xeon Extended MCE MSRs (12) available
[    3.798959] CPU1: Thermal monitoring enabled
[    3.799161] CPU1: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 09
[    3.799187] checking TSC synchronization [CPU#0 -> CPU#1]:
[    3.819181] Measured 63588552840 cycles TSC warp between CPUs, turning off TSC clock.
[    3.819184] Marking TSC unstable due to: check_tsc_sync_source failed.

If check_tsc_warp() is called after initial boot, and the TSC has in the
meantime been set (BIOS, user, silicon, elves) to a value lower than the
last stored/stale value, we blame the TSC.  Reset to pristine condition
after every test.

Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/tsc_sync.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index 9125efe66a06..05d8f25de6ae 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -129,23 +129,23 @@ void __cpuinit check_tsc_sync_source(int cpu)
 	while (atomic_read(&stop_count) != cpus-1)
 		cpu_relax();
 
-	/*
-	 * Reset it - just in case we boot another CPU later:
-	 */
-	atomic_set(&start_count, 0);
-
 	if (nr_warps) {
 		printk("\n");
 		printk(KERN_WARNING "Measured %Ld cycles TSC warp between CPUs,"
 				    " turning off TSC clock.\n", max_warp);
 		mark_tsc_unstable("check_tsc_sync_source failed");
-		nr_warps = 0;
-		max_warp = 0;
-		last_tsc = 0;
 	} else {
 		printk(" passed.\n");
 	}
 
+	/*
+	 * Reset it - just in case we boot another CPU later:
+	 */
+	atomic_set(&start_count, 0);
+	nr_warps = 0;
+	max_warp = 0;
+	last_tsc = 0;
+
 	/*
 	 * Let the target continue with the bootup:
 	 */
-- 
cgit v1.2.3-59-g8ed1b


From b02aae9cf52956dfe1bec73f77f81a3d05d3902b Mon Sep 17 00:00:00 2001
From: Rene Herman <rene.herman@gmail.com>
Date: Wed, 30 Jan 2008 13:30:05 +0100
Subject: x86: provide a DMI based port 0x80 I/O delay override.

x86: provide a DMI based port 0x80 I/O delay override.

Certain (HP) laptops experience trouble from our port 0x80 I/O delay
writes. This patch provides for a DMI based switch to the "alternate
diagnostic port" 0xed (as used by some BIOSes as well) for these.

David P. Reed confirmed that port 0xed works for him and provides a
proper delay. The symptoms of _not_ working are a hanging machine,
with "hwclock" use being a direct trigger.

Earlier versions of this attempted to simply use udelay(2), with the
2 being a value tested to be a nicely conservative upper-bound with
help from many on the linux-kernel mailinglist but that approach has
two problems.

First, pre-loops_per_jiffy calibration (which is post PIT init while
some implementations of the PIT are actually one of the historically
problematic devices that need the delay) udelay() isn't particularly
well-defined. We could initialise loops_per_jiffy conservatively (and
based on CPU family so as to not unduly delay old machines) which
would sort of work, but...

Second, delaying isn't the only effect that a write to port 0x80 has.
It's also a PCI posting barrier which some devices may be explicitly
or implicitly relying on. Alan Cox did a survey and found evidence
that additionally some drivers may be racy on SMP without the bus
locking outb.

Switching to an inb() makes the timing too unpredictable and as such,
this DMI based switch should be the safest approach for now. Any more
invasive changes should get more rigid testing first. It's moreover
only very few machines with the problem and a DMI based hack seems
to fit that situation.

This also introduces a command-line parameter "io_delay" to override
the DMI based choice again:

	io_delay=<standard|alternate>

where "standard" means using the standard port 0x80 and "alternate"
port 0xed.

This retains the udelay method as a config (CONFIG_UDELAY_IO_DELAY) and
command-line ("io_delay=udelay") choice for testing purposes as well.

This does not change the io_delay() in the boot code which is using
the same port 0x80 I/O delay but those do not appear to be a problem
as David P. Reed reported the problem was already gone after using the
udelay version. He moreover reported that booting with "acpi=off" also
fixed things and seeing as how ACPI isn't touched until after this DMI
based I/O port switch I believe it's safe to leave the ones in the boot
code be.

The DMI strings from David's HP Pavilion dv9000z are in there already
and we need to get/verify the DMI info from other machines with the
problem, notably the HP Pavilion dv6000z.

This patch is partly based on earlier patches from Pavel Machek and
David P. Reed.

Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/kernel-parameters.txt |   8 +++
 arch/x86/Kconfig.debug              |   9 +++
 arch/x86/boot/compressed/misc_32.c  |   8 +--
 arch/x86/boot/compressed/misc_64.c  |   8 +--
 arch/x86/kernel/Makefile_32         |   2 +-
 arch/x86/kernel/Makefile_64         |   2 +-
 arch/x86/kernel/io_delay.c          | 106 ++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/setup_32.c          |   2 +
 arch/x86/kernel/setup_64.c          |   2 +
 include/asm-x86/io_32.h             |   8 ++-
 include/asm-x86/io_64.h             |  33 +++++++----
 11 files changed, 165 insertions(+), 23 deletions(-)
 create mode 100644 arch/x86/kernel/io_delay.c

(limited to 'arch')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 880f882160e2..9e6056058425 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -794,6 +794,14 @@ and is between 256 and 4096 characters. It is defined in the file
 			for translation below 32 bit and if not available
 			then look in the higher range.
 
+	io_delay=	[X86-32,X86-64] I/O delay method
+		standard
+			Standard port 0x80 delay
+		alternate
+			Alternate port 0xed delay
+		udelay
+			Simple two microsecond delay
+
 	io7=		[HW] IO7 for Marvel based alpha systems
 			See comment before marvel_specify_io7 in
 			arch/alpha/kernel/core_marvel.c.
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 761ca7b5f120..40aba670fb37 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -112,4 +112,13 @@ config IOMMU_LEAK
 	  Add a simple leak tracer to the IOMMU code. This is useful when you
 	  are debugging a buggy device driver that leaks IOMMU mappings.
 
+config UDELAY_IO_DELAY
+	bool "Delay I/O through udelay instead of outb"
+	depends on DEBUG_KERNEL
+	help
+	  Make inb_p/outb_p use udelay() based delays by default. Please note
+	  that udelay() does not have the same bus-level side-effects that
+	  the normal outb based delay does meaning this could cause drivers
+	  to change behaviour and/or bugs to surface.
+
 endmenu
diff --git a/arch/x86/boot/compressed/misc_32.c b/arch/x86/boot/compressed/misc_32.c
index b74d60d1b2fa..288e16283ef9 100644
--- a/arch/x86/boot/compressed/misc_32.c
+++ b/arch/x86/boot/compressed/misc_32.c
@@ -276,10 +276,10 @@ static void putstr(const char *s)
 	RM_SCREEN_INFO.orig_y = y;
 
 	pos = (x + cols * y) * 2;	/* Update cursor position */
-	outb_p(14, vidport);
-	outb_p(0xff & (pos >> 9), vidport+1);
-	outb_p(15, vidport);
-	outb_p(0xff & (pos >> 1), vidport+1);
+	outb(14, vidport);
+	outb(0xff & (pos >> 9), vidport+1);
+	outb(15, vidport);
+	outb(0xff & (pos >> 1), vidport+1);
 }
 
 static void* memset(void* s, int c, unsigned n)
diff --git a/arch/x86/boot/compressed/misc_64.c b/arch/x86/boot/compressed/misc_64.c
index 6ea015aa65e4..43e5fcc37be9 100644
--- a/arch/x86/boot/compressed/misc_64.c
+++ b/arch/x86/boot/compressed/misc_64.c
@@ -269,10 +269,10 @@ static void putstr(const char *s)
 	RM_SCREEN_INFO.orig_y = y;
 
 	pos = (x + cols * y) * 2;	/* Update cursor position */
-	outb_p(14, vidport);
-	outb_p(0xff & (pos >> 9), vidport+1);
-	outb_p(15, vidport);
-	outb_p(0xff & (pos >> 1), vidport+1);
+	outb(14, vidport);
+	outb(0xff & (pos >> 9), vidport+1);
+	outb(15, vidport);
+	outb(0xff & (pos >> 1), vidport+1);
 }
 
 static void* memset(void* s, int c, unsigned n)
diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index a7bc93c27662..0cc1981d1e38 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -8,7 +8,7 @@ CPPFLAGS_vmlinux.lds += -Ui386
 obj-y	:= process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
 		ptrace_32.o time_32.o ioport_32.o ldt_32.o setup_32.o i8259_32.o sys_i386_32.o \
 		pci-dma_32.o i386_ksyms_32.o i387_32.o bootflag.o e820_32.o\
-		quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o
+		quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o io_delay.o
 
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-y				+= cpu/
diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index 5a88890d8ee9..08a68f0d8fda 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -11,7 +11,7 @@ obj-y	:= process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
 		x8664_ksyms_64.o i387_64.o syscall_64.o vsyscall_64.o \
 		setup64.o bootflag.o e820_64.o reboot_64.o quirks.o i8237.o \
 		pci-dma_64.o pci-nommu_64.o alternative.o hpet.o tsc_64.o bugs_64.o \
-		i8253.o
+		i8253.o io_delay.o
 
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-y				+= cpu/
diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
new file mode 100644
index 000000000000..4d955e74b974
--- /dev/null
+++ b/arch/x86/kernel/io_delay.c
@@ -0,0 +1,106 @@
+/*
+ * I/O delay strategies for inb_p/outb_p
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/dmi.h>
+#include <asm/io.h>
+
+/*
+ * Allow for a DMI based override of port 0x80 needed for certain HP laptops
+ */
+#define IO_DELAY_PORT_STD 0x80
+#define IO_DELAY_PORT_ALT 0xed
+
+static void standard_io_delay(void)
+{
+	asm volatile ("outb %%al, %0" : : "N" (IO_DELAY_PORT_STD));
+}
+
+static void alternate_io_delay(void)
+{
+	asm volatile ("outb %%al, %0" : : "N" (IO_DELAY_PORT_ALT));
+}
+
+/*
+ * 2 usecs is an upper-bound for the outb delay but note that udelay doesn't
+ * have the bus-level side-effects that outb does
+ */
+#define IO_DELAY_USECS 2
+
+/*
+ * High on a hill was a lonely goatherd
+ */
+static void udelay_io_delay(void)
+{
+	udelay(IO_DELAY_USECS);
+}
+
+#ifndef CONFIG_UDELAY_IO_DELAY
+static void (*io_delay)(void) = standard_io_delay;
+#else
+static void (*io_delay)(void) = udelay_io_delay;
+#endif
+
+/*
+ * Paravirt wants native_io_delay to be a constant.
+ */
+void native_io_delay(void)
+{
+	io_delay();
+}
+EXPORT_SYMBOL(native_io_delay);
+
+#ifndef CONFIG_UDELAY_IO_DELAY
+static int __init dmi_alternate_io_delay_port(const struct dmi_system_id *id)
+{
+	printk(KERN_NOTICE "%s: using alternate I/O delay port\n", id->ident);
+	io_delay = alternate_io_delay;
+	return 0;
+}
+
+static struct dmi_system_id __initdata alternate_io_delay_port_dmi_table[] = {
+	{
+		.callback	= dmi_alternate_io_delay_port,
+		.ident		= "HP Pavilion dv9000z",
+		.matches	= {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Quanta"),
+			DMI_MATCH(DMI_BOARD_NAME, "30B9")
+		}
+	},
+	{
+	}
+};
+
+static int __initdata io_delay_override;
+
+void __init io_delay_init(void)
+{
+	if (!io_delay_override)
+		dmi_check_system(alternate_io_delay_port_dmi_table);
+}
+#endif
+
+static int __init io_delay_param(char *s)
+{
+	if (!s)
+		return -EINVAL;
+
+	if (!strcmp(s, "standard"))
+		io_delay = standard_io_delay;
+	else if (!strcmp(s, "alternate"))
+		io_delay = alternate_io_delay;
+	else if (!strcmp(s, "udelay"))
+		io_delay = udelay_io_delay;
+	else
+		return -EINVAL;
+
+#ifndef CONFIG_UDELAY_IO_DELAY
+	io_delay_override = 1;
+#endif
+	return 0;
+}
+
+early_param("io_delay", io_delay_param);
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 9c24b45b513c..51bdc0b1b72e 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -648,6 +648,8 @@ void __init setup_arch(char **cmdline_p)
 
 	dmi_scan_machine();
 
+	io_delay_init();;
+
 #ifdef CONFIG_X86_GENERICARCH
 	generic_apic_probe();
 #endif	
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 30d94d1d5f5f..ec976edf0399 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -311,6 +311,8 @@ void __init setup_arch(char **cmdline_p)
 
 	dmi_scan_machine();
 
+	io_delay_init();
+
 #ifdef CONFIG_SMP
 	/* setup to use the static apicid table during kernel startup */
 	x86_cpu_to_apicid_ptr = (void *)&x86_cpu_to_apicid_init;
diff --git a/include/asm-x86/io_32.h b/include/asm-x86/io_32.h
index fe881cd1e6f4..a8d25c38b91c 100644
--- a/include/asm-x86/io_32.h
+++ b/include/asm-x86/io_32.h
@@ -250,10 +250,14 @@ static inline void flush_write_buffers(void)
 
 #endif /* __KERNEL__ */
 
-static inline void native_io_delay(void)
+#ifndef CONFIG_UDELAY_IO_DELAY
+extern void io_delay_init(void);
+#else
+static inline void io_delay_init(void)
 {
-	asm volatile("outb %%al,$0x80" : : : "memory");
 }
+#endif
+extern void native_io_delay(void);
 
 #if defined(CONFIG_PARAVIRT)
 #include <asm/paravirt.h>
diff --git a/include/asm-x86/io_64.h b/include/asm-x86/io_64.h
index a037b0794332..5bebaf961692 100644
--- a/include/asm-x86/io_64.h
+++ b/include/asm-x86/io_64.h
@@ -35,13 +35,24 @@
   *  - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
   */
 
-#define __SLOW_DOWN_IO "\noutb %%al,$0x80"
+#ifndef CONFIG_UDELAY_IO_DELAY
+extern void io_delay_init(void);
+#else
+static inline void io_delay_init(void)
+{
+}
+#endif
+extern void native_io_delay(void);
 
+static inline void slow_down_io(void)
+{
+	native_io_delay();
 #ifdef REALLY_SLOW_IO
-#define __FULL_SLOW_DOWN_IO __SLOW_DOWN_IO __SLOW_DOWN_IO __SLOW_DOWN_IO __SLOW_DOWN_IO
-#else
-#define __FULL_SLOW_DOWN_IO __SLOW_DOWN_IO
+	native_io_delay();
+	native_io_delay();
+	native_io_delay();
 #endif
+}
 
 /*
  * Talk about misusing macros..
@@ -50,21 +61,21 @@
 static inline void out##s(unsigned x value, unsigned short port) {
 
 #define __OUT2(s,s1,s2) \
-__asm__ __volatile__ ("out" #s " %" s1 "0,%" s2 "1"
+__asm__ __volatile__ ("out" #s " %" s1 "0,%" s2 "1" : : "a" (value), "Nd" (port))
 
 #define __OUT(s,s1,x) \
-__OUT1(s,x) __OUT2(s,s1,"w") : : "a" (value), "Nd" (port)); } \
-__OUT1(s##_p,x) __OUT2(s,s1,"w") __FULL_SLOW_DOWN_IO : : "a" (value), "Nd" (port));} \
+__OUT1(s,x) __OUT2(s,s1,"w"); } \
+__OUT1(s##_p,x) __OUT2(s,s1,"w"); slow_down_io(); }
 
 #define __IN1(s) \
 static inline RETURN_TYPE in##s(unsigned short port) { RETURN_TYPE _v;
 
 #define __IN2(s,s1,s2) \
-__asm__ __volatile__ ("in" #s " %" s2 "1,%" s1 "0"
+__asm__ __volatile__ ("in" #s " %" s2 "1,%" s1 "0" : "=a" (_v) : "Nd" (port))
 
-#define __IN(s,s1,i...) \
-__IN1(s) __IN2(s,s1,"w") : "=a" (_v) : "Nd" (port) ,##i ); return _v; } \
-__IN1(s##_p) __IN2(s,s1,"w") __FULL_SLOW_DOWN_IO : "=a" (_v) : "Nd" (port) ,##i ); return _v; } \
+#define __IN(s,s1) \
+__IN1(s) __IN2(s,s1,"w"); return _v; } \
+__IN1(s##_p) __IN2(s,s1,"w"); slow_down_io(); return _v; }
 
 #define __INS(s) \
 static inline void ins##s(unsigned short port, void * addr, unsigned long count) \
-- 
cgit v1.2.3-59-g8ed1b


From 6e7c402590b75b6b45138792445ee0f0315a8473 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:30:05 +0100
Subject: x86: various changes and cleanups to in_p/out_p delay details

various changes to the in_p/out_p delay details:

- add the io_delay=none method
- make each method selectable from the kernel config
- simplify the delay code a bit by getting rid of an indirect function call
- add the /proc/sys/kernel/io_delay_type sysctl
- change 'io_delay=standard|alternate' to io_delay=0x80 and io_delay=0xed
- make the io delay config not depend on CONFIG_DEBUG_KERNEL

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: "David P. Reed" <dpreed@reed.com>
---
 Documentation/kernel-parameters.txt |  12 ++--
 arch/x86/Kconfig.debug              |  79 ++++++++++++++++++++++++---
 arch/x86/kernel/io_delay.c          | 106 +++++++++++++++++-------------------
 include/asm-x86/io_32.h             |  10 +---
 include/asm-x86/io_64.h             |  10 +---
 kernel/sysctl.c                     |   9 +++
 6 files changed, 143 insertions(+), 83 deletions(-)

(limited to 'arch')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 9e6056058425..b427b7c0e5d0 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -795,12 +795,14 @@ and is between 256 and 4096 characters. It is defined in the file
 			then look in the higher range.
 
 	io_delay=	[X86-32,X86-64] I/O delay method
-		standard
-			Standard port 0x80 delay
-		alternate
-			Alternate port 0xed delay
+		0x80
+			Standard port 0x80 based delay
+		0xed
+			Alternate port 0xed based delay (needed on some systems)
 		udelay
-			Simple two microsecond delay
+			Simple two microseconds delay
+		none
+			No delay
 
 	io7=		[HW] IO7 for Marvel based alpha systems
 			See comment before marvel_specify_io7 in
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 40aba670fb37..77eda46f97b8 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -112,13 +112,78 @@ config IOMMU_LEAK
 	  Add a simple leak tracer to the IOMMU code. This is useful when you
 	  are debugging a buggy device driver that leaks IOMMU mappings.
 
-config UDELAY_IO_DELAY
-	bool "Delay I/O through udelay instead of outb"
-	depends on DEBUG_KERNEL
+#
+# IO delay types:
+#
+
+config IO_DELAY_TYPE_0X80
+	int
+	default "0"
+
+config IO_DELAY_TYPE_0XED
+	int
+	default "1"
+
+config IO_DELAY_TYPE_UDELAY
+	int
+	default "2"
+
+config IO_DELAY_TYPE_NONE
+	int
+	default "3"
+
+choice
+	prompt "IO delay type"
+	default IO_DELAY_0X80
+
+config IO_DELAY_0X80
+	bool "port 0x80 based port-IO delay [recommended]"
+	help
+	  This is the traditional Linux IO delay used for in/out_p.
+	  It is the most tested hence safest selection here.
+
+config IO_DELAY_0XED
+	bool "port 0xed based port-IO delay"
+	help
+	  Use port 0xed as the IO delay. This frees up port 0x80 which is
+	  often used as a hardware-debug port.
+
+config IO_DELAY_UDELAY
+	bool "udelay based port-IO delay"
+	help
+	  Use udelay(2) as the IO delay method. This provides the delay
+	  while not having any side-effect on the IO port space.
+
+config IO_DELAY_NONE
+	bool "no port-IO delay"
 	help
-	  Make inb_p/outb_p use udelay() based delays by default. Please note
-	  that udelay() does not have the same bus-level side-effects that
-	  the normal outb based delay does meaning this could cause drivers
-	  to change behaviour and/or bugs to surface.
+	  No port-IO delay. Will break on old boxes that require port-IO
+	  delay for certain operations. Should work on most new machines.
+
+endchoice
+
+if IO_DELAY_0X80
+config DEFAULT_IO_DELAY_TYPE
+	int
+	default IO_DELAY_TYPE_0X80
+endif
+
+if IO_DELAY_0XED
+config DEFAULT_IO_DELAY_TYPE
+	int
+	default IO_DELAY_TYPE_0XED
+endif
+
+if IO_DELAY_UDELAY
+config DEFAULT_IO_DELAY_TYPE
+	int
+	default IO_DELAY_TYPE_UDELAY
+endif
+
+if IO_DELAY_NONE
+config DEFAULT_IO_DELAY_TYPE
+	int
+	default IO_DELAY_TYPE_NONE
+endif
 
 endmenu
diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
index 4d955e74b974..f052e34dc94c 100644
--- a/arch/x86/kernel/io_delay.c
+++ b/arch/x86/kernel/io_delay.c
@@ -1,5 +1,9 @@
 /*
  * I/O delay strategies for inb_p/outb_p
+ *
+ * Allow for a DMI based override of port 0x80, needed for certain HP laptops
+ * and possibly other systems. Also allow for the gradual elimination of
+ * outb_p/inb_p API uses.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -8,98 +12,86 @@
 #include <linux/dmi.h>
 #include <asm/io.h>
 
-/*
- * Allow for a DMI based override of port 0x80 needed for certain HP laptops
- */
-#define IO_DELAY_PORT_STD 0x80
-#define IO_DELAY_PORT_ALT 0xed
-
-static void standard_io_delay(void)
-{
-	asm volatile ("outb %%al, %0" : : "N" (IO_DELAY_PORT_STD));
-}
-
-static void alternate_io_delay(void)
-{
-	asm volatile ("outb %%al, %0" : : "N" (IO_DELAY_PORT_ALT));
-}
-
-/*
- * 2 usecs is an upper-bound for the outb delay but note that udelay doesn't
- * have the bus-level side-effects that outb does
- */
-#define IO_DELAY_USECS 2
-
-/*
- * High on a hill was a lonely goatherd
- */
-static void udelay_io_delay(void)
-{
-	udelay(IO_DELAY_USECS);
-}
+int io_delay_type __read_mostly = CONFIG_DEFAULT_IO_DELAY_TYPE;
+EXPORT_SYMBOL_GPL(io_delay_type);
 
-#ifndef CONFIG_UDELAY_IO_DELAY
-static void (*io_delay)(void) = standard_io_delay;
-#else
-static void (*io_delay)(void) = udelay_io_delay;
-#endif
+static int __initdata io_delay_override;
 
 /*
  * Paravirt wants native_io_delay to be a constant.
  */
 void native_io_delay(void)
 {
-	io_delay();
+	switch (io_delay_type) {
+	default:
+	case CONFIG_IO_DELAY_TYPE_0X80:
+		asm volatile ("outb %al, $0x80");
+		break;
+	case CONFIG_IO_DELAY_TYPE_0XED:
+		asm volatile ("outb %al, $0xed");
+		break;
+	case CONFIG_IO_DELAY_TYPE_UDELAY:
+		/*
+		 * 2 usecs is an upper-bound for the outb delay but
+		 * note that udelay doesn't have the bus-level
+		 * side-effects that outb does, nor does udelay() have
+		 * precise timings during very early bootup (the delays
+		 * are shorter until calibrated):
+		 */
+		udelay(2);
+	case CONFIG_IO_DELAY_TYPE_NONE:
+		break;
+	}
 }
 EXPORT_SYMBOL(native_io_delay);
 
-#ifndef CONFIG_UDELAY_IO_DELAY
-static int __init dmi_alternate_io_delay_port(const struct dmi_system_id *id)
+static int __init dmi_io_delay_0xed_port(const struct dmi_system_id *id)
 {
-	printk(KERN_NOTICE "%s: using alternate I/O delay port\n", id->ident);
-	io_delay = alternate_io_delay;
+	if (io_delay_type == CONFIG_IO_DELAY_TYPE_0X80) {
+		printk(KERN_NOTICE "%s: using 0xed I/O delay port\n",
+			id->ident);
+		io_delay_type = CONFIG_IO_DELAY_TYPE_0XED;
+	}
+
 	return 0;
 }
 
-static struct dmi_system_id __initdata alternate_io_delay_port_dmi_table[] = {
+/*
+ * Quirk table for systems that misbehave (lock up, etc.) if port
+ * 0x80 is used:
+ */
+static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
 	{
-		.callback	= dmi_alternate_io_delay_port,
+		.callback	= dmi_io_delay_0xed_port,
 		.ident		= "HP Pavilion dv9000z",
 		.matches	= {
 			DMI_MATCH(DMI_BOARD_VENDOR, "Quanta"),
 			DMI_MATCH(DMI_BOARD_NAME, "30B9")
 		}
 	},
-	{
-	}
+	{ }
 };
 
-static int __initdata io_delay_override;
-
 void __init io_delay_init(void)
 {
 	if (!io_delay_override)
-		dmi_check_system(alternate_io_delay_port_dmi_table);
+		dmi_check_system(io_delay_0xed_port_dmi_table);
 }
-#endif
 
 static int __init io_delay_param(char *s)
 {
-	if (!s)
-		return -EINVAL;
-
-	if (!strcmp(s, "standard"))
-		io_delay = standard_io_delay;
-	else if (!strcmp(s, "alternate"))
-		io_delay = alternate_io_delay;
+	if (!strcmp(s, "0x80"))
+		io_delay_type = CONFIG_IO_DELAY_TYPE_0X80;
+	else if (!strcmp(s, "0xed"))
+		io_delay_type = CONFIG_IO_DELAY_TYPE_0XED;
 	else if (!strcmp(s, "udelay"))
-		io_delay = udelay_io_delay;
+		io_delay_type = CONFIG_IO_DELAY_TYPE_UDELAY;
+	else if (!strcmp(s, "none"))
+		io_delay_type = CONFIG_IO_DELAY_TYPE_NONE;
 	else
 		return -EINVAL;
 
-#ifndef CONFIG_UDELAY_IO_DELAY
 	io_delay_override = 1;
-#endif
 	return 0;
 }
 
diff --git a/include/asm-x86/io_32.h b/include/asm-x86/io_32.h
index a8d25c38b91c..2a04bd17eac5 100644
--- a/include/asm-x86/io_32.h
+++ b/include/asm-x86/io_32.h
@@ -250,15 +250,11 @@ static inline void flush_write_buffers(void)
 
 #endif /* __KERNEL__ */
 
-#ifndef CONFIG_UDELAY_IO_DELAY
-extern void io_delay_init(void);
-#else
-static inline void io_delay_init(void)
-{
-}
-#endif
 extern void native_io_delay(void);
 
+extern int io_delay_type;
+extern void io_delay_init(void);
+
 #if defined(CONFIG_PARAVIRT)
 #include <asm/paravirt.h>
 #else
diff --git a/include/asm-x86/io_64.h b/include/asm-x86/io_64.h
index 5bebaf961692..dbcc03aa1c6a 100644
--- a/include/asm-x86/io_64.h
+++ b/include/asm-x86/io_64.h
@@ -35,15 +35,11 @@
   *  - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
   */
 
-#ifndef CONFIG_UDELAY_IO_DELAY
-extern void io_delay_init(void);
-#else
-static inline void io_delay_init(void)
-{
-}
-#endif
 extern void native_io_delay(void);
 
+extern int io_delay_type;
+extern void io_delay_init(void);
+
 static inline void slow_down_io(void)
 {
 	native_io_delay();
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 4bc8e48434a7..357b68ba23ec 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -53,6 +53,7 @@
 #ifdef CONFIG_X86
 #include <asm/nmi.h>
 #include <asm/stacktrace.h>
+#include <asm/io.h>
 #endif
 
 static int deprecated_sysctl_warning(struct __sysctl_args *args);
@@ -727,6 +728,14 @@ static struct ctl_table kern_table[] = {
 		.mode		= 0644,
 		.proc_handler	= &proc_dointvec,
 	},
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "io_delay_type",
+		.data		= &io_delay_type,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
 #endif
 #if defined(CONFIG_MMU)
 	{
-- 
cgit v1.2.3-59-g8ed1b


From d0049e71c6e14a3b0a5b8cedaa1325a1a91fecb0 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:30:05 +0100
Subject: x86: make io_delay=0xed the default

make io_delay=0xed the default. This frees up port 0x80 which is
a debug port on some machines and locks up certain laptops.

Testing only for now. Try the io_delay=0x80 boot option if this does not
work for you.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.debug | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 77eda46f97b8..b747ab38814d 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -134,7 +134,7 @@ config IO_DELAY_TYPE_NONE
 
 choice
 	prompt "IO delay type"
-	default IO_DELAY_0X80
+	default IO_DELAY_0XED
 
 config IO_DELAY_0X80
 	bool "port 0x80 based port-IO delay [recommended]"
-- 
cgit v1.2.3-59-g8ed1b


From f9fc58910ebc448b0b7d37af1bf57a896a78e9c4 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:30:05 +0100
Subject: x86: add DMI quirk for io-delay hangs on Compaq Presario V6000
 laptops

add the DMI strings provided by Islam Amer <pharon@gmail.com>, for
the Compaq Presario V6000 (Quanta/30B7).

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/io_delay.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
index f052e34dc94c..bd49321034db 100644
--- a/arch/x86/kernel/io_delay.c
+++ b/arch/x86/kernel/io_delay.c
@@ -61,6 +61,14 @@ static int __init dmi_io_delay_0xed_port(const struct dmi_system_id *id)
  * 0x80 is used:
  */
 static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
+	{
+		.callback	= dmi_io_delay_0xed_port,
+		.ident		= "Compaq Presario V6000",
+		.matches	= {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Quanta"),
+			DMI_MATCH(DMI_BOARD_NAME, "30B7")
+		}
+	},
 	{
 		.callback	= dmi_io_delay_0xed_port,
 		.ident		= "HP Pavilion dv9000z",
@@ -69,6 +77,14 @@ static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "30B9")
 		}
 	},
+	{
+		.callback	= dmi_io_delay_0xed_port,
+		.ident		= "HP Pavilion tx1000",
+		.matches	= {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Quanta"),
+			DMI_MATCH(DMI_BOARD_NAME, "30BF")
+		}
+	},
 	{ }
 };
 
-- 
cgit v1.2.3-59-g8ed1b


From 83bd01024b1fdfc41d9b758e5669e80fca72df66 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:06 +0100
Subject: x86: protect against sigaltstack wraparound

cf http://lkml.org/lkml/2007/10/3/41

To summarize: on Linux, SA_ONSTACK decides whether you are already on the
signal stack based on the value of the SP at the time of a signal.  If
you are not already inside the range, you are not "on the signal stack"
and so the new signal handler frame starts over at the base of the signal
stack.

sigaltstack (and sigstack before it) was invented in BSD.  There, the
SA_ONSTACK behavior has always been different.  It uses a kernel state
flag to decide, rather than the SP value.  When you first take an
SA_ONSTACK signal and switch to the alternate signal stack, it sets the
SS_ONSTACK flag in the thread's sigaltstack state in the kernel.
Thereafter you are "on the signal stack" and don't switch SP before
pushing a handler frame no matter what the SP value is.  Only when you
sigreturn from the original handler context do you clear the SS_ONSTACK
flag so that a new handler frame will start over at the base of the
alternate signal stack.

The undesireable effect of the Linux behavior is that an overflow of the
alternate signal stack can not only go undetected, but lead to a ring
buffer effect of clobbering the original handler frame at the base of the
signal stack for each successive signal that comes just after the
overflow.  This is what Shi Weihua's test case demonstrates.  Normally
this does not come up because of the signal mask, but the test case uses
SA_NODEFER for its SIGSEGV handler.

The other subtle part of the existing Linux semantics is that a simple
longjmp out of a signal handler serves to take you off the signal stack
in a safe and reliable fashion without having used sigreturn (nor having
just returned from the handler normally, which means the same).  After
the longjmp (or even informal stack switching not via any proper libc or
kernel interface), the alternate signal stack stands ready to be used
again.

A paranoid program would allocate a PROT_NONE red zone around its
alternate signal stack.  Then a small overflow would trigger a SIGSEGV in
handler setup, and be fatal (core dump) whether or not SIGSEGV is
blocked.  As with thread stack red zones, that cannot catch all overflows
(or underflows).  e.g., a local array as large as page size allocated in
a function called from a handler, but not actually touched before more
calls push more stack, could cause an overflow that silently pushes into
some unrelated allocated pages.

The BSD behavior does not do anything in particular about overflow.  But
it does at least avoid the wraparound or "ring buffer effect", so you'll
just get a straightforward all-out overflow down your address space past
the low end of the alternate signal stack.  I don't know what the BSD
behavior is for longjmp out of an SA_ONSTACK handler.

The POSIX wording relating to sigaltstack is pretty minimal.  I don't
think it speaks to this issue one way or another.  (The program that
overflows its stack is clearly in undefined behavior territory of one
sort or another anyhow.)

Given the longjmp issue and the potential for highly subtle complications
in existing programs relying on this in arcane ways deep in their code, I
am very dubious about changing the behavior to the BSD style persistent
flag.  I think Shi Weihua's patches have a similar effect by tracking the
SP used in the last handler setup.

I think it would be sensible for the signal handler setup code to detect
when it would itself be causing a stack overflow.  Maybe something like
the following patch (untested).  This issue exists in the same way on all
machines, so ideally they would all do a similar check.

When it's the handler function itself or its callees that cause the
overflow, rather than the signal handler frame setup alone crossing the
boundary, this still won't help.  But I don't see any way to distinguish
that from the valid longjmp case.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/signal_32.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 20f29e4c1d33..5c6170c44b00 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -295,6 +295,13 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
 	/* Default to using normal stack */
 	esp = regs->esp;
 
+	/*
+	 * If we are on the alternate signal stack and would overflow it, don't.
+	 * Return an always-bogus address instead so we will die with SIGSEGV.
+	 */
+	if (on_sig_stack(esp) && !likely(on_sig_stack(esp - frame_size)))
+		return (void __user *) -1L;
+
 	/* This is the X/Open sanctioned signal stack switching.  */
 	if (ka->sa.sa_flags & SA_ONSTACK) {
 		if (sas_ss_flags(esp) == 0)
-- 
cgit v1.2.3-59-g8ed1b


From 53d517cdbaac704352b3d0c10fecb99e0b54572e Mon Sep 17 00:00:00 2001
From: Guillaume Chazarain <guichaz@yahoo.fr>
Date: Wed, 30 Jan 2008 13:30:06 +0100
Subject: x86: scale cyc_2_nsec according to CPU frequency

scale the sched_clock() cyc_2_nsec scaling factor according to
CPU frequency changes.

[ mingo@elte.hu: simplified it and fixed it for SMP. ]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/tsc_32.c | 43 +++++++++++++++++++++++++++++++-----
 arch/x86/kernel/tsc_64.c | 57 +++++++++++++++++++++++++++++++++++++++---------
 include/asm-x86/timer.h  | 23 ++++++++++++++-----
 3 files changed, 102 insertions(+), 21 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/tsc_32.c b/arch/x86/kernel/tsc_32.c
index 9ebc0dab66b4..00bb4c1c0593 100644
--- a/arch/x86/kernel/tsc_32.c
+++ b/arch/x86/kernel/tsc_32.c
@@ -5,6 +5,7 @@
 #include <linux/jiffies.h>
 #include <linux/init.h>
 #include <linux/dmi.h>
+#include <linux/percpu.h>
 
 #include <asm/delay.h>
 #include <asm/tsc.h>
@@ -80,13 +81,31 @@ EXPORT_SYMBOL_GPL(check_tsc_unstable);
  *
  *			-johnstul@us.ibm.com "math is hard, lets go shopping!"
  */
-unsigned long cyc2ns_scale __read_mostly;
 
-#define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */
+DEFINE_PER_CPU(unsigned long, cyc2ns);
 
-static inline void set_cyc2ns_scale(unsigned long cpu_khz)
+static void set_cyc2ns_scale(unsigned long cpu_khz, int cpu)
 {
-	cyc2ns_scale = (1000000 << CYC2NS_SCALE_FACTOR)/cpu_khz;
+	unsigned long flags, prev_scale, *scale;
+	unsigned long long tsc_now, ns_now;
+
+	local_irq_save(flags);
+	sched_clock_idle_sleep_event();
+
+	scale = &per_cpu(cyc2ns, cpu);
+
+	rdtscll(tsc_now);
+	ns_now = __cycles_2_ns(tsc_now);
+
+	prev_scale = *scale;
+	if (cpu_khz)
+		*scale = (NSEC_PER_MSEC << CYC2NS_SCALE_FACTOR)/cpu_khz;
+
+	/*
+	 * Start smoothly with the new frequency:
+	 */
+	sched_clock_idle_wakeup_event(0);
+	local_irq_restore(flags);
 }
 
 /*
@@ -239,7 +258,9 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, void *data)
 						ref_freq, freq->new);
 			if (!(freq->flags & CPUFREQ_CONST_LOOPS)) {
 				tsc_khz = cpu_khz;
-				set_cyc2ns_scale(cpu_khz);
+				preempt_disable();
+				set_cyc2ns_scale(cpu_khz, smp_processor_id());
+				preempt_enable();
 				/*
 				 * TSC based sched_clock turns
 				 * to junk w/ cpufreq
@@ -367,6 +388,8 @@ static inline void check_geode_tsc_reliable(void) { }
 
 void __init tsc_init(void)
 {
+	int cpu;
+
 	if (!cpu_has_tsc || tsc_disable)
 		goto out_no_tsc;
 
@@ -380,7 +403,15 @@ void __init tsc_init(void)
 				(unsigned long)cpu_khz / 1000,
 				(unsigned long)cpu_khz % 1000);
 
-	set_cyc2ns_scale(cpu_khz);
+	/*
+	 * Secondary CPUs do not run through tsc_init(), so set up
+	 * all the scale factors for all CPUs, assuming the same
+	 * speed as the bootup CPU. (cpufreq notifiers will fix this
+	 * up if their speed diverges)
+	 */
+	for_each_possible_cpu(cpu)
+		set_cyc2ns_scale(cpu_khz, cpu);
+
 	use_tsc_delay();
 
 	/* Check and install the TSC clocksource */
diff --git a/arch/x86/kernel/tsc_64.c b/arch/x86/kernel/tsc_64.c
index 9c70af45b42b..32edd2c50e94 100644
--- a/arch/x86/kernel/tsc_64.c
+++ b/arch/x86/kernel/tsc_64.c
@@ -10,6 +10,7 @@
 
 #include <asm/hpet.h>
 #include <asm/timex.h>
+#include <asm/timer.h>
 
 static int notsc __initdata = 0;
 
@@ -18,16 +19,48 @@ EXPORT_SYMBOL(cpu_khz);
 unsigned int tsc_khz;
 EXPORT_SYMBOL(tsc_khz);
 
-static unsigned int cyc2ns_scale __read_mostly;
+/* Accelerators for sched_clock()
+ * convert from cycles(64bits) => nanoseconds (64bits)
+ *  basic equation:
+ *		ns = cycles / (freq / ns_per_sec)
+ *		ns = cycles * (ns_per_sec / freq)
+ *		ns = cycles * (10^9 / (cpu_khz * 10^3))
+ *		ns = cycles * (10^6 / cpu_khz)
+ *
+ *	Then we use scaling math (suggested by george@mvista.com) to get:
+ *		ns = cycles * (10^6 * SC / cpu_khz) / SC
+ *		ns = cycles * cyc2ns_scale / SC
+ *
+ *	And since SC is a constant power of two, we can convert the div
+ *  into a shift.
+ *
+ *  We can use khz divisor instead of mhz to keep a better precision, since
+ *  cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits.
+ *  (mathieu.desnoyers@polymtl.ca)
+ *
+ *			-johnstul@us.ibm.com "math is hard, lets go shopping!"
+ */
+DEFINE_PER_CPU(unsigned long, cyc2ns);
 
-static inline void set_cyc2ns_scale(unsigned long khz)
+static void set_cyc2ns_scale(unsigned long cpu_khz, int cpu)
 {
-	cyc2ns_scale = (NSEC_PER_MSEC << NS_SCALE) / khz;
-}
+	unsigned long flags, prev_scale, *scale;
+	unsigned long long tsc_now, ns_now;
 
-static unsigned long long cycles_2_ns(unsigned long long cyc)
-{
-	return (cyc * cyc2ns_scale) >> NS_SCALE;
+	local_irq_save(flags);
+	sched_clock_idle_sleep_event();
+
+	scale = &per_cpu(cyc2ns, cpu);
+
+	rdtscll(tsc_now);
+	ns_now = __cycles_2_ns(tsc_now);
+
+	prev_scale = *scale;
+	if (cpu_khz)
+		*scale = (NSEC_PER_MSEC << CYC2NS_SCALE_FACTOR)/cpu_khz;
+
+	sched_clock_idle_wakeup_event(0);
+	local_irq_restore(flags);
 }
 
 unsigned long long sched_clock(void)
@@ -100,7 +133,9 @@ static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
 			mark_tsc_unstable("cpufreq changes");
 	}
 
-	set_cyc2ns_scale(tsc_khz_ref);
+	preempt_disable();
+	set_cyc2ns_scale(tsc_khz_ref, smp_processor_id());
+	preempt_enable();
 
 	return 0;
 }
@@ -151,7 +186,7 @@ static unsigned long __init tsc_read_refs(unsigned long *pm,
 void __init tsc_calibrate(void)
 {
 	unsigned long flags, tsc1, tsc2, tr1, tr2, pm1, pm2, hpet1, hpet2;
-	int hpet = is_hpet_enabled();
+	int hpet = is_hpet_enabled(), cpu;
 
 	local_irq_save(flags);
 
@@ -206,7 +241,9 @@ void __init tsc_calibrate(void)
 	}
 
 	tsc_khz = tsc2 / tsc1;
-	set_cyc2ns_scale(tsc_khz);
+
+	for_each_possible_cpu(cpu)
+		set_cyc2ns_scale(tsc_khz, cpu);
 }
 
 /*
diff --git a/include/asm-x86/timer.h b/include/asm-x86/timer.h
index 0db7e994fb8b..4f6fcb050c11 100644
--- a/include/asm-x86/timer.h
+++ b/include/asm-x86/timer.h
@@ -2,6 +2,7 @@
 #define _ASMi386_TIMER_H
 #include <linux/init.h>
 #include <linux/pm.h>
+#include <linux/percpu.h>
 
 #define TICK_SIZE (tick_nsec / 1000)
 
@@ -16,7 +17,7 @@ extern int recalibrate_cpu_khz(void);
 #define calculate_cpu_khz() native_calculate_cpu_khz()
 #endif
 
-/* Accellerators for sched_clock()
+/* Accelerators for sched_clock()
  * convert from cycles(64bits) => nanoseconds (64bits)
  *  basic equation:
  *		ns = cycles / (freq / ns_per_sec)
@@ -31,20 +32,32 @@ extern int recalibrate_cpu_khz(void);
  *	And since SC is a constant power of two, we can convert the div
  *  into a shift.
  *
- *  We can use khz divisor instead of mhz to keep a better percision, since
+ *  We can use khz divisor instead of mhz to keep a better precision, since
  *  cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits.
  *  (mathieu.desnoyers@polymtl.ca)
  *
  *			-johnstul@us.ibm.com "math is hard, lets go shopping!"
  */
-extern unsigned long cyc2ns_scale __read_mostly;
+
+DECLARE_PER_CPU(unsigned long, cyc2ns);
 
 #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */
 
-static inline unsigned long long cycles_2_ns(unsigned long long cyc)
+static inline unsigned long long __cycles_2_ns(unsigned long long cyc)
 {
-	return (cyc * cyc2ns_scale) >> CYC2NS_SCALE_FACTOR;
+	return cyc * per_cpu(cyc2ns, smp_processor_id()) >> CYC2NS_SCALE_FACTOR;
 }
 
+static inline unsigned long long cycles_2_ns(unsigned long long cyc)
+{
+	unsigned long long ns;
+	unsigned long flags;
+
+	local_irq_save(flags);
+	ns = __cycles_2_ns(cyc);
+	local_irq_restore(flags);
+
+	return ns;
+}
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 5ee613b6751cd91db4b6bd7c1dc9d2f9cf65cde2 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:30:06 +0100
Subject: x86: idle wakeup event in the HLT loop

do a proper idle-wakeup event on HLT as well - some CPUs stop the TSC
in HLT too, not just when going through the ACPI methods.

(the ACPI idle code already does this.)

[ update the 64-bit side too, as noticed by Jiri Slaby. ]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_32.c | 15 ++++++++++++---
 arch/x86/kernel/process_64.c | 13 ++++++++++---
 2 files changed, 22 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 46d391d49de8..a63d2d2556ee 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -113,10 +113,19 @@ void default_idle(void)
 		smp_mb();
 
 		local_irq_disable();
-		if (!need_resched())
+		if (!need_resched()) {
+			ktime_t t0, t1;
+			u64 t0n, t1n;
+
+			t0 = ktime_get();
+			t0n = ktime_to_ns(t0);
 			safe_halt();	/* enables interrupts racelessly */
-		else
-			local_irq_enable();
+			local_irq_disable();
+			t1 = ktime_get();
+			t1n = ktime_to_ns(t1);
+			sched_clock_idle_wakeup_event(t1n - t0n);
+		}
+		local_irq_enable();
 		current_thread_info()->status |= TS_POLLING;
 	} else {
 		/* loop is done by the caller */
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index c2db7ef93565..40fed477f3e5 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -116,9 +116,16 @@ static void default_idle(void)
 	smp_mb();
 	local_irq_disable();
 	if (!need_resched()) {
-		/* Enables interrupts one instruction before HLT.
-		   x86 special cases this so there is no race. */
-		safe_halt();
+		ktime_t t0, t1;
+		u64 t0n, t1n;
+
+		t0 = ktime_get();
+		t0n = ktime_to_ns(t0);
+		safe_halt();	/* enables interrupts racelessly */
+		local_irq_disable();
+		t1 = ktime_get();
+		t1n = ktime_to_ns(t1);
+		sched_clock_idle_wakeup_event(t1n - t0n);
 	} else
 		local_irq_enable();
 	current_thread_info()->status |= TS_POLLING;
-- 
cgit v1.2.3-59-g8ed1b


From 39d44a51474a52bec6d72d30ebc76f5159101d90 Mon Sep 17 00:00:00 2001
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Date: Wed, 30 Jan 2008 13:30:06 +0100
Subject: x86: enable irq in default_idle on 64-bit

local_irq_enable() is missing after sched_clock_idle_wakeup_event().

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/process_64.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 40fed477f3e5..2c9e59448f4c 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -126,8 +126,8 @@ static void default_idle(void)
 		t1 = ktime_get();
 		t1n = ktime_to_ns(t1);
 		sched_clock_idle_wakeup_event(t1n - t0n);
-	} else
-		local_irq_enable();
+	}
+	local_irq_enable();
 	current_thread_info()->status |= TS_POLLING;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From d94448b1fdc91ee1d235607f6bbe595464e4fbb9 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:07 +0100
Subject: x86: clean up arch/x86/ia32/fpu32.c

White space and coding style clenaup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/ia32/fpu32.c | 134 +++++++++++++++++++++++++-------------------------
 1 file changed, 67 insertions(+), 67 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/fpu32.c b/arch/x86/ia32/fpu32.c
index 2c8209a3605a..459bf743128f 100644
--- a/arch/x86/ia32/fpu32.c
+++ b/arch/x86/ia32/fpu32.c
@@ -1,8 +1,8 @@
-/* 
+/*
  * Copyright 2002 Andi Kleen, SuSE Labs.
  * FXSAVE<->i387 conversion support. Based on code by Gareth Hughes.
  * This is used for ptrace, signals and coredumps in 32bit emulation.
- */ 
+ */
 
 #include <linux/sched.h>
 #include <asm/sigcontext32.h>
@@ -13,96 +13,97 @@
 static inline unsigned short twd_i387_to_fxsr(unsigned short twd)
 {
 	unsigned int tmp; /* to avoid 16 bit prefixes in the code */
- 
+
 	/* Transform each pair of bits into 01 (valid) or 00 (empty) */
-        tmp = ~twd;
-        tmp = (tmp | (tmp>>1)) & 0x5555; /* 0V0V0V0V0V0V0V0V */
-        /* and move the valid bits to the lower byte. */
-        tmp = (tmp | (tmp >> 1)) & 0x3333; /* 00VV00VV00VV00VV */
-        tmp = (tmp | (tmp >> 2)) & 0x0f0f; /* 0000VVVV0000VVVV */
-        tmp = (tmp | (tmp >> 4)) & 0x00ff; /* 00000000VVVVVVVV */
-        return tmp;
+	tmp = ~twd;
+	tmp = (tmp | (tmp>>1)) & 0x5555; /* 0V0V0V0V0V0V0V0V */
+	/* and move the valid bits to the lower byte. */
+	tmp = (tmp | (tmp >> 1)) & 0x3333; /* 00VV00VV00VV00VV */
+	tmp = (tmp | (tmp >> 2)) & 0x0f0f; /* 0000VVVV0000VVVV */
+	tmp = (tmp | (tmp >> 4)) & 0x00ff; /* 00000000VVVVVVVV */
+	return tmp;
 }
 
+#define FPREG_ADDR(f, n)	((void *)&(f)->st_space + (n) * 16);
+#define FP_EXP_TAG_VALID	0
+#define FP_EXP_TAG_ZERO		1
+#define FP_EXP_TAG_SPECIAL	2
+#define FP_EXP_TAG_EMPTY	3
+
 static inline unsigned long twd_fxsr_to_i387(struct i387_fxsave_struct *fxsave)
 {
-	struct _fpxreg *st = NULL;
+	struct _fpxreg *st;
 	unsigned long tos = (fxsave->swd >> 11) & 7;
 	unsigned long twd = (unsigned long) fxsave->twd;
 	unsigned long tag;
 	unsigned long ret = 0xffff0000;
 	int i;
 
-#define FPREG_ADDR(f, n)	((void *)&(f)->st_space + (n) * 16);
-
-	for (i = 0 ; i < 8 ; i++) {
+	for (i = 0; i < 8; i++, twd >>= 1) {
 		if (twd & 0x1) {
-			st = FPREG_ADDR( fxsave, (i - tos) & 7 );
+			st = FPREG_ADDR(fxsave, (i - tos) & 7);
 
 			switch (st->exponent & 0x7fff) {
 			case 0x7fff:
-				tag = 2;		/* Special */
+				tag = FP_EXP_TAG_SPECIAL;
 				break;
 			case 0x0000:
-				if ( !st->significand[0] &&
-				     !st->significand[1] &&
-				     !st->significand[2] &&
-				     !st->significand[3] ) {
-					tag = 1;	/* Zero */
-				} else {
-					tag = 2;	/* Special */
-				}
+				if (!st->significand[0] &&
+				    !st->significand[1] &&
+				    !st->significand[2] &&
+				    !st->significand[3])
+					tag = FP_EXP_TAG_ZERO;
+				else
+					tag = FP_EXP_TAG_SPECIAL;
 				break;
 			default:
-				if (st->significand[3] & 0x8000) {
-					tag = 0;	/* Valid */
-				} else {
-					tag = 2;	/* Special */
-				}
+				if (st->significand[3] & 0x8000)
+					tag = FP_EXP_TAG_VALID;
+				else
+					tag = FP_EXP_TAG_SPECIAL;
 				break;
 			}
 		} else {
-			tag = 3;			/* Empty */
+			tag = FP_EXP_TAG_EMPTY;
 		}
-		ret |= (tag << (2 * i));
-		twd = twd >> 1;
+		ret |= tag << (2 * i);
 	}
 	return ret;
 }
 
+#define G(num, val) err |= __get_user(val, num + (u32 __user *)buf)
 
 static inline int convert_fxsr_from_user(struct i387_fxsave_struct *fxsave,
 					 struct _fpstate_ia32 __user *buf)
 {
 	struct _fpxreg *to;
 	struct _fpreg __user *from;
-	int i;
+	int i, err = 0;
 	u32 v;
-	int err = 0;
 
-#define G(num,val) err |= __get_user(val, num + (u32 __user *)buf)
 	G(0, fxsave->cwd);
 	G(1, fxsave->swd);
 	G(2, fxsave->twd);
 	fxsave->twd = twd_i387_to_fxsr(fxsave->twd);
 	G(3, fxsave->rip);
 	G(4, v);
-	fxsave->fop = v>>16;	/* cs ignored */
+	/* cs ignored */
+	fxsave->fop = v>>16;
 	G(5, fxsave->rdp);
 	/* 6: ds ignored */
-#undef G
-	if (err) 
-		return -1; 
+	if (err)
+		return -1;
 
 	to = (struct _fpxreg *)&fxsave->st_space[0];
 	from = &buf->_st[0];
-	for (i = 0 ; i < 8 ; i++, to++, from++) {
+	for (i = 0; i < 8; i++, to++, from++) {
 		if (__copy_from_user(to, from, sizeof(*from)))
 			return -1;
 	}
 	return 0;
 }
 
+#define P(num, val) err |= __put_user(val, num + (u32 __user *)buf)
 
 static inline int convert_fxsr_to_user(struct _fpstate_ia32 __user *buf,
 				       struct i387_fxsave_struct *fxsave,
@@ -111,60 +112,59 @@ static inline int convert_fxsr_to_user(struct _fpstate_ia32 __user *buf,
 {
 	struct _fpreg __user *to;
 	struct _fpxreg *from;
-	int i;
-	u16 cs,ds; 
-	int err = 0; 
+	int i, err = 0;
+	u16 cs, ds;
 
 	if (tsk == current) {
-		/* should be actually ds/cs at fpu exception time,
-		   but that information is not available in 64bit mode. */
-		asm("movw %%ds,%0 " : "=r" (ds)); 
-		asm("movw %%cs,%0 " : "=r" (cs)); 		
-	} else { /* ptrace. task has stopped. */
+		/*
+		 * should be actually ds/cs at fpu exception time, but
+		 * that information is not available in 64bit mode.
+		 */
+		asm("movw %%ds,%0 " : "=r" (ds));
+		asm("movw %%cs,%0 " : "=r" (cs));
+	} else {
+		 /* ptrace. task has stopped. */
 		ds = tsk->thread.ds;
 		cs = regs->cs;
-	} 
+	}
 
-#define P(num,val) err |= __put_user(val, num + (u32 __user *)buf)
 	P(0, (u32)fxsave->cwd | 0xffff0000);
 	P(1, (u32)fxsave->swd | 0xffff0000);
 	P(2, twd_fxsr_to_i387(fxsave));
 	P(3, (u32)fxsave->rip);
-	P(4,  cs | ((u32)fxsave->fop) << 16); 
+	P(4,  cs | ((u32)fxsave->fop) << 16);
 	P(5, fxsave->rdp);
 	P(6, 0xffff0000 | ds);
-#undef P
 
-	if (err) 
-		return -1; 
+	if (err)
+		return -1;
 
 	to = &buf->_st[0];
 	from = (struct _fpxreg *) &fxsave->st_space[0];
-	for ( i = 0 ; i < 8 ; i++, to++, from++ ) {
+	for (i = 0; i < 8; i++, to++, from++) {
 		if (__copy_to_user(to, from, sizeof(*to)))
 			return -1;
 	}
 	return 0;
 }
 
-int restore_i387_ia32(struct task_struct *tsk, struct _fpstate_ia32 __user *buf, int fsave) 
-{ 
+int restore_i387_ia32(struct task_struct *tsk,
+		      struct _fpstate_ia32 __user *buf, int fsave)
+{
 	clear_fpu(tsk);
-	if (!fsave) { 
-		if (__copy_from_user(&tsk->thread.i387.fxsave, 
+	if (!fsave) {
+		if (__copy_from_user(&tsk->thread.i387.fxsave,
 				     &buf->_fxsr_env[0],
 				     sizeof(struct i387_fxsave_struct)))
 			return -1;
 		tsk->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
 		set_stopped_child_used_math(tsk);
-	} 
+	}
 	return convert_fxsr_from_user(&tsk->thread.i387.fxsave, buf);
-}  
+}
 
-int save_i387_ia32(struct task_struct *tsk, 
-		   struct _fpstate_ia32 __user *buf, 
-		   struct pt_regs *regs,
-		   int fsave)
+int save_i387_ia32(struct task_struct *tsk, struct _fpstate_ia32 __user *buf,
+		   struct pt_regs *regs, int fsave)
 {
 	int err = 0;
 
@@ -174,8 +174,8 @@ int save_i387_ia32(struct task_struct *tsk,
 	if (fsave)
 		return 0;
 	err |= __put_user(tsk->thread.i387.fxsave.swd, &buf->status);
-	if (fsave) 
-		return err ? -1 : 1; 	
+	if (fsave)
+		return err ? -1 : 1;
 	err |= __put_user(X86_FXSR_MAGIC, &buf->magic);
 	err |= __copy_to_user(&buf->_fxsr_env[0], &tsk->thread.i387.fxsave,
 			      sizeof(struct i387_fxsave_struct));
-- 
cgit v1.2.3-59-g8ed1b


From 8edf8bee889a3d13ae2db0f7992821fb5dc78bfa Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:07 +0100
Subject: x86: clean up arch/x86/ia32/aout32.c

White space and coding style clenaup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/ia32/ia32_aout.c | 212 +++++++++++++++++++++++++---------------------
 1 file changed, 115 insertions(+), 97 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index f82e1a94fcb7..a764e4e95314 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -36,38 +36,44 @@
 #undef WARN_OLD
 #undef CORE_DUMP /* probably broken */
 
-static int load_aout_binary(struct linux_binprm *, struct pt_regs * regs);
-static int load_aout_library(struct file*);
+static int load_aout_binary(struct linux_binprm *, struct pt_regs *regs);
+static int load_aout_library(struct file *);
 
 #ifdef CORE_DUMP
-static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file, unsigned long limit);
+static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
+			  unsigned long limit);
 
 /*
  * fill in the user structure for a core dump..
  */
-static void dump_thread32(struct pt_regs * regs, struct user32 * dump)
+static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
 {
-	u32 fs,gs;
+	u32 fs, gs;
 
 /* changed the size calculations - should hopefully work better. lbt */
 	dump->magic = CMAGIC;
 	dump->start_code = 0;
 	dump->start_stack = regs->rsp & ~(PAGE_SIZE - 1);
 	dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
-	dump->u_dsize = ((unsigned long) (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
+	dump->u_dsize = ((unsigned long)
+			 (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
 	dump->u_dsize -= dump->u_tsize;
 	dump->u_ssize = 0;
-	dump->u_debugreg[0] = current->thread.debugreg0;  
-	dump->u_debugreg[1] = current->thread.debugreg1;  
-	dump->u_debugreg[2] = current->thread.debugreg2;  
-	dump->u_debugreg[3] = current->thread.debugreg3;  
-	dump->u_debugreg[4] = 0;  
-	dump->u_debugreg[5] = 0;  
-	dump->u_debugreg[6] = current->thread.debugreg6;  
-	dump->u_debugreg[7] = current->thread.debugreg7;  
-
-	if (dump->start_stack < 0xc0000000)
-		dump->u_ssize = ((unsigned long) (0xc0000000 - dump->start_stack)) >> PAGE_SHIFT;
+	dump->u_debugreg[0] = current->thread.debugreg0;
+	dump->u_debugreg[1] = current->thread.debugreg1;
+	dump->u_debugreg[2] = current->thread.debugreg2;
+	dump->u_debugreg[3] = current->thread.debugreg3;
+	dump->u_debugreg[4] = 0;
+	dump->u_debugreg[5] = 0;
+	dump->u_debugreg[6] = current->thread.debugreg6;
+	dump->u_debugreg[7] = current->thread.debugreg7;
+
+	if (dump->start_stack < 0xc0000000) {
+		unsigned long tmp;
+
+		tmp = (unsigned long) (0xc0000000 - dump->start_stack);
+		dump->u_ssize = tmp >> PAGE_SHIFT;
+	}
 
 	dump->regs.ebx = regs->rbx;
 	dump->regs.ecx = regs->rcx;
@@ -79,7 +85,7 @@ static void dump_thread32(struct pt_regs * regs, struct user32 * dump)
 	dump->regs.ds = current->thread.ds;
 	dump->regs.es = current->thread.es;
 	asm("movl %%fs,%0" : "=r" (fs)); dump->regs.fs = fs;
-	asm("movl %%gs,%0" : "=r" (gs)); dump->regs.gs = gs; 
+	asm("movl %%gs,%0" : "=r" (gs)); dump->regs.gs = gs;
 	dump->regs.orig_eax = regs->orig_rax;
 	dump->regs.eip = regs->rip;
 	dump->regs.cs = regs->cs;
@@ -90,7 +96,7 @@ static void dump_thread32(struct pt_regs * regs, struct user32 * dump)
 #if 1 /* FIXME */
 	dump->u_fpvalid = 0;
 #else
-	dump->u_fpvalid = dump_fpu (regs, &dump->i387);
+	dump->u_fpvalid = dump_fpu(regs, &dump->i387);
 #endif
 }
 
@@ -128,15 +134,19 @@ static int dump_write(struct file *file, const void *addr, int nr)
 	return file->f_op->write(file, addr, nr, &file->f_pos) == nr;
 }
 
-#define DUMP_WRITE(addr, nr)	\
+#define DUMP_WRITE(addr, nr)			     \
 	if (!dump_write(file, (void *)(addr), (nr))) \
 		goto end_coredump;
 
-#define DUMP_SEEK(offset) \
-if (file->f_op->llseek) { \
-	if (file->f_op->llseek(file,(offset),0) != (offset)) \
- 		goto end_coredump; \
-} else file->f_pos = (offset)
+#define DUMP_SEEK(offset)						\
+	if (file->f_op->llseek) {					\
+		if (file->f_op->llseek(file, (offset), 0) != (offset))	\
+			goto end_coredump;				\
+	} else								\
+		file->f_pos = (offset)
+
+#define START_DATA()	(u.u_tsize << PAGE_SHIFT)
+#define START_STACK(u)	(u.start_stack)
 
 /*
  * Routine writes a core dump image in the current directory.
@@ -148,62 +158,70 @@ if (file->f_op->llseek) { \
  * dumping of the process results in another error..
  */
 
-static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file, unsigned long limit)
+static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
+			  unsigned long limit)
 {
 	mm_segment_t fs;
 	int has_dumped = 0;
 	unsigned long dump_start, dump_size;
 	struct user32 dump;
-#       define START_DATA(u)	(u.u_tsize << PAGE_SHIFT)
-#       define START_STACK(u)   (u.start_stack)
 
 	fs = get_fs();
 	set_fs(KERNEL_DS);
 	has_dumped = 1;
 	current->flags |= PF_DUMPCORE;
-       	strncpy(dump.u_comm, current->comm, sizeof(current->comm));
-	dump.u_ar0 = (u32)(((unsigned long)(&dump.regs)) - ((unsigned long)(&dump)));
+	strncpy(dump.u_comm, current->comm, sizeof(current->comm));
+	dump.u_ar0 = (u32)(((unsigned long)(&dump.regs)) -
+			   ((unsigned long)(&dump)));
 	dump.signal = signr;
 	dump_thread32(regs, &dump);
 
-/* If the size of the dump file exceeds the rlimit, then see what would happen
-   if we wrote the stack, but not the data area.  */
+	/*
+	 * If the size of the dump file exceeds the rlimit, then see
+	 * what would happen if we wrote the stack, but not the data
+	 * area.
+	 */
 	if ((dump.u_dsize + dump.u_ssize + 1) * PAGE_SIZE > limit)
 		dump.u_dsize = 0;
 
-/* Make sure we have enough room to write the stack and data areas. */
+	/* Make sure we have enough room to write the stack and data areas. */
 	if ((dump.u_ssize + 1) * PAGE_SIZE > limit)
 		dump.u_ssize = 0;
 
-/* make sure we actually have a data and stack area to dump */
+	/* make sure we actually have a data and stack area to dump */
 	set_fs(USER_DS);
-	if (!access_ok(VERIFY_READ, (void *) (unsigned long)START_DATA(dump), dump.u_dsize << PAGE_SHIFT))
+	if (!access_ok(VERIFY_READ, (void *) (unsigned long)START_DATA(dump),
+		       dump.u_dsize << PAGE_SHIFT))
 		dump.u_dsize = 0;
-	if (!access_ok(VERIFY_READ, (void *) (unsigned long)START_STACK(dump), dump.u_ssize << PAGE_SHIFT))
+	if (!access_ok(VERIFY_READ, (void *) (unsigned long)START_STACK(dump),
+		       dump.u_ssize << PAGE_SHIFT))
 		dump.u_ssize = 0;
 
 	set_fs(KERNEL_DS);
-/* struct user */
-	DUMP_WRITE(&dump,sizeof(dump));
-/* Now dump all of the user data.  Include malloced stuff as well */
+	/* struct user */
+	DUMP_WRITE(&dump, sizeof(dump));
+	/* Now dump all of the user data.  Include malloced stuff as well */
 	DUMP_SEEK(PAGE_SIZE);
-/* now we start writing out the user space info */
+	/* now we start writing out the user space info */
 	set_fs(USER_DS);
-/* Dump the data area */
+	/* Dump the data area */
 	if (dump.u_dsize != 0) {
 		dump_start = START_DATA(dump);
 		dump_size = dump.u_dsize << PAGE_SHIFT;
-		DUMP_WRITE(dump_start,dump_size);
+		DUMP_WRITE(dump_start, dump_size);
 	}
-/* Now prepare to dump the stack area */
+	/* Now prepare to dump the stack area */
 	if (dump.u_ssize != 0) {
 		dump_start = START_STACK(dump);
 		dump_size = dump.u_ssize << PAGE_SHIFT;
-		DUMP_WRITE(dump_start,dump_size);
+		DUMP_WRITE(dump_start, dump_size);
 	}
-/* Finally dump the task struct.  Not be used by gdb, but could be useful */
+	/*
+	 * Finally dump the task struct.  Not be used by gdb, but
+	 * could be useful
+	 */
 	set_fs(KERNEL_DS);
-	DUMP_WRITE(current,sizeof(*current));
+	DUMP_WRITE(current, sizeof(*current));
 end_coredump:
 	set_fs(fs);
 	return has_dumped;
@@ -217,35 +235,34 @@ end_coredump:
  */
 static u32 __user *create_aout_tables(char __user *p, struct linux_binprm *bprm)
 {
-	u32 __user *argv;
-	u32 __user *envp;
-	u32 __user *sp;
-	int argc = bprm->argc;
-	int envc = bprm->envc;
+	u32 __user *argv, *envp, *sp;
+	int argc = bprm->argc, envc = bprm->envc;
 
 	sp = (u32 __user *) ((-(unsigned long)sizeof(u32)) & (unsigned long) p);
 	sp -= envc+1;
 	envp = sp;
 	sp -= argc+1;
 	argv = sp;
-	put_user((unsigned long) envp,--sp);
-	put_user((unsigned long) argv,--sp);
-	put_user(argc,--sp);
+	put_user((unsigned long) envp, --sp);
+	put_user((unsigned long) argv, --sp);
+	put_user(argc, --sp);
 	current->mm->arg_start = (unsigned long) p;
-	while (argc-->0) {
+	while (argc-- > 0) {
 		char c;
-		put_user((u32)(unsigned long)p,argv++);
+
+		put_user((u32)(unsigned long)p, argv++);
 		do {
-			get_user(c,p++);
+			get_user(c, p++);
 		} while (c);
 	}
 	put_user(0, argv);
 	current->mm->arg_end = current->mm->env_start = (unsigned long) p;
-	while (envc-->0) {
+	while (envc-- > 0) {
 		char c;
-		put_user((u32)(unsigned long)p,envp++);
+
+		put_user((u32)(unsigned long)p, envp++);
 		do {
-			get_user(c,p++);
+			get_user(c, p++);
 		} while (c);
 	}
 	put_user(0, envp);
@@ -257,20 +274,18 @@ static u32 __user *create_aout_tables(char __user *p, struct linux_binprm *bprm)
  * These are the functions used to load a.out style executables and shared
  * libraries.  There is no binary dependent code anywhere else.
  */
-
-static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
+static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 {
+	unsigned long error, fd_offset, rlim;
 	struct exec ex;
-	unsigned long error;
-	unsigned long fd_offset;
-	unsigned long rlim;
 	int retval;
 
 	ex = *((struct exec *) bprm->buf);		/* exec-header */
 	if ((N_MAGIC(ex) != ZMAGIC && N_MAGIC(ex) != OMAGIC &&
 	     N_MAGIC(ex) != QMAGIC && N_MAGIC(ex) != NMAGIC) ||
 	    N_TRSIZE(ex) || N_DRSIZE(ex) ||
-	    i_size_read(bprm->file->f_path.dentry->d_inode) < ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
+	    i_size_read(bprm->file->f_path.dentry->d_inode) <
+	    ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
 		return -ENOEXEC;
 	}
 
@@ -291,13 +306,13 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 	if (retval)
 		return retval;
 
-	regs->cs = __USER32_CS; 
+	regs->cs = __USER32_CS;
 	regs->r8 = regs->r9 = regs->r10 = regs->r11 = regs->r12 =
 		regs->r13 = regs->r14 = regs->r15 = 0;
 
 	/* OK, This is the point of no return */
 	set_personality(PER_LINUX);
-	set_thread_flag(TIF_IA32); 
+	set_thread_flag(TIF_IA32);
 	clear_thread_flag(TIF_ABI_PENDING);
 
 	current->mm->end_code = ex.a_text +
@@ -311,7 +326,7 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 
 	current->mm->mmap = NULL;
 	compute_creds(bprm);
- 	current->flags &= ~PF_FORKNOEXEC;
+	current->flags &= ~PF_FORKNOEXEC;
 
 	if (N_MAGIC(ex) == OMAGIC) {
 		unsigned long text_addr, map_size;
@@ -338,30 +353,30 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 			send_sig(SIGKILL, current, 0);
 			return error;
 		}
-			 
+
 		flush_icache_range(text_addr, text_addr+ex.a_text+ex.a_data);
 	} else {
 #ifdef WARN_OLD
 		static unsigned long error_time, error_time2;
 		if ((ex.a_text & 0xfff || ex.a_data & 0xfff) &&
-		    (N_MAGIC(ex) != NMAGIC) && (jiffies-error_time2) > 5*HZ)
-		{
+		    (N_MAGIC(ex) != NMAGIC) && (jiffies-error_time2) > 5*HZ) {
 			printk(KERN_NOTICE "executable not page aligned\n");
 			error_time2 = jiffies;
 		}
 
 		if ((fd_offset & ~PAGE_MASK) != 0 &&
-		    (jiffies-error_time) > 5*HZ)
-		{
-			printk(KERN_WARNING 
-			       "fd_offset is not page aligned. Please convert program: %s\n",
+		    (jiffies - error_time) > 5*HZ) {
+			printk(KERN_WARNING
+			       "fd_offset is not page aligned. Please convert "
+			       "program: %s\n",
 			       bprm->file->f_path.dentry->d_name.name);
 			error_time = jiffies;
 		}
 #endif
 
-		if (!bprm->file->f_op->mmap||((fd_offset & ~PAGE_MASK) != 0)) {
+		if (!bprm->file->f_op->mmap || (fd_offset & ~PAGE_MASK) != 0) {
 			loff_t pos = fd_offset;
+
 			down_write(&current->mm->mmap_sem);
 			do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
 			up_write(&current->mm->mmap_sem);
@@ -376,9 +391,10 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 
 		down_write(&current->mm->mmap_sem);
 		error = do_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
-			PROT_READ | PROT_EXEC,
-			MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE | MAP_32BIT,
-			fd_offset);
+				PROT_READ | PROT_EXEC,
+				MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE |
+				MAP_EXECUTABLE | MAP_32BIT,
+				fd_offset);
 		up_write(&current->mm->mmap_sem);
 
 		if (error != N_TXTADDR(ex)) {
@@ -387,9 +403,10 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 		}
 
 		down_write(&current->mm->mmap_sem);
- 		error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
+		error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
 				PROT_READ | PROT_WRITE | PROT_EXEC,
-				MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE | MAP_32BIT,
+				MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE |
+				MAP_EXECUTABLE | MAP_32BIT,
 				fd_offset + ex.a_text);
 		up_write(&current->mm->mmap_sem);
 		if (error != N_DATADDR(ex)) {
@@ -403,9 +420,9 @@ beyond_if:
 	set_brk(current->mm->start_brk, current->mm->brk);
 
 	retval = setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT);
-	if (retval < 0) { 
-		/* Someone check-me: is this error path enough? */ 
-		send_sig(SIGKILL, current, 0); 
+	if (retval < 0) {
+		/* Someone check-me: is this error path enough? */
+		send_sig(SIGKILL, current, 0);
 		return retval;
 	}
 
@@ -414,7 +431,7 @@ beyond_if:
 	/* start thread */
 	asm volatile("movl %0,%%fs" :: "r" (0)); \
 	asm volatile("movl %0,%%es; movl %0,%%ds": :"r" (__USER32_DS));
-	load_gs_index(0); 
+	load_gs_index(0);
 	(regs)->rip = ex.a_entry;
 	(regs)->rsp = current->mm->start_stack;
 	(regs)->eflags = 0x200;
@@ -425,7 +442,7 @@ beyond_if:
 	set_fs(USER_DS);
 	if (unlikely(current->ptrace & PT_PTRACED)) {
 		if (current->ptrace & PT_TRACE_EXEC)
-			ptrace_notify ((PTRACE_EVENT_EXEC << 8) | SIGTRAP);
+			ptrace_notify((PTRACE_EVENT_EXEC << 8) | SIGTRAP);
 		else
 			send_sig(SIGTRAP, current, 0);
 	}
@@ -434,9 +451,8 @@ beyond_if:
 
 static int load_aout_library(struct file *file)
 {
-	struct inode * inode;
-	unsigned long bss, start_addr, len;
-	unsigned long error;
+	struct inode *inode;
+	unsigned long bss, start_addr, len, error;
 	int retval;
 	struct exec ex;
 
@@ -450,7 +466,8 @@ static int load_aout_library(struct file *file)
 	/* We come in here for the regular a.out style of shared libraries */
 	if ((N_MAGIC(ex) != ZMAGIC && N_MAGIC(ex) != QMAGIC) || N_TRSIZE(ex) ||
 	    N_DRSIZE(ex) || ((ex.a_entry & 0xfff) && N_MAGIC(ex) == ZMAGIC) ||
-	    i_size_read(inode) < ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
+	    i_size_read(inode) <
+	    ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
 		goto out;
 	}
 
@@ -467,10 +484,10 @@ static int load_aout_library(struct file *file)
 
 #ifdef WARN_OLD
 		static unsigned long error_time;
-		if ((jiffies-error_time) > 5*HZ)
-		{
-			printk(KERN_WARNING 
-			       "N_TXTOFF is not page aligned. Please convert library: %s\n",
+		if ((jiffies-error_time) > 5*HZ) {
+			printk(KERN_WARNING
+			       "N_TXTOFF is not page aligned. Please convert "
+			       "library: %s\n",
 			       file->f_path.dentry->d_name.name);
 			error_time = jiffies;
 		}
@@ -478,11 +495,12 @@ static int load_aout_library(struct file *file)
 		down_write(&current->mm->mmap_sem);
 		do_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
 		up_write(&current->mm->mmap_sem);
-		
+
 		file->f_op->read(file, (char __user *)start_addr,
 			ex.a_text + ex.a_data, &pos);
 		flush_icache_range((unsigned long) start_addr,
-				   (unsigned long) start_addr + ex.a_text + ex.a_data);
+				   (unsigned long) start_addr + ex.a_text +
+				   ex.a_data);
 
 		retval = 0;
 		goto out;
-- 
cgit v1.2.3-59-g8ed1b


From 99b9cdf758af7004a716cf304dd5cd41af7db227 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:07 +0100
Subject: x86: clean up arch/x86/ia32/ia32_signal.c

White space and coding style clenaup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/ia32/ia32_signal.c | 371 ++++++++++++++++++++++----------------------
 1 file changed, 183 insertions(+), 188 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 6ea19c25f90d..0fc5d8563e19 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -43,7 +43,8 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
 {
 	int err;
-	if (!access_ok (VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
+
+	if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
 		return -EFAULT;
 
 	/* If you change siginfo_t structure, please make sure that
@@ -53,16 +54,19 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
 	   3 ints plus the relevant union member.  */
 	err = __put_user(from->si_signo, &to->si_signo);
 	err |= __put_user(from->si_errno, &to->si_errno);
- 	err |= __put_user((short)from->si_code, &to->si_code);
+	err |= __put_user((short)from->si_code, &to->si_code);
 
 	if (from->si_code < 0) {
 		err |= __put_user(from->si_pid, &to->si_pid);
- 		err |= __put_user(from->si_uid, &to->si_uid);
- 		err |= __put_user(ptr_to_compat(from->si_ptr), &to->si_ptr);
+		err |= __put_user(from->si_uid, &to->si_uid);
+		err |= __put_user(ptr_to_compat(from->si_ptr), &to->si_ptr);
 	} else {
- 		/* First 32bits of unions are always present:
- 		 * si_pid === si_band === si_tid === si_addr(LS half) */
-		err |= __put_user(from->_sifields._pad[0], &to->_sifields._pad[0]);
+		/*
+		 * First 32bits of unions are always present:
+		 * si_pid === si_band === si_tid === si_addr(LS half)
+		 */
+		err |= __put_user(from->_sifields._pad[0],
+				  &to->_sifields._pad[0]);
 		switch (from->si_code >> 16) {
 		case __SI_FAULT >> 16:
 			break;
@@ -76,14 +80,15 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
 			err |= __put_user(from->si_uid, &to->si_uid);
 			break;
 		case __SI_POLL >> 16:
-			err |= __put_user(from->si_fd, &to->si_fd); 
+			err |= __put_user(from->si_fd, &to->si_fd);
 			break;
 		case __SI_TIMER >> 16:
-			err |= __put_user(from->si_overrun, &to->si_overrun); 
+			err |= __put_user(from->si_overrun, &to->si_overrun);
 			err |= __put_user(ptr_to_compat(from->si_ptr),
-					&to->si_ptr);
+					  &to->si_ptr);
 			break;
-		case __SI_RT >> 16: /* This is not generated by the kernel as of now.  */
+			 /* This is not generated by the kernel as of now.  */
+		case __SI_RT >> 16:
 		case __SI_MESGQ >> 16:
 			err |= __put_user(from->si_uid, &to->si_uid);
 			err |= __put_user(from->si_int, &to->si_int);
@@ -97,7 +102,8 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
 {
 	int err;
 	u32 ptr32;
-	if (!access_ok (VERIFY_READ, from, sizeof(compat_siginfo_t)))
+
+	if (!access_ok(VERIFY_READ, from, sizeof(compat_siginfo_t)))
 		return -EFAULT;
 
 	err = __get_user(to->si_signo, &from->si_signo);
@@ -112,8 +118,7 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
 	return err;
 }
 
-asmlinkage long
-sys32_sigsuspend(int history0, int history1, old_sigset_t mask)
+asmlinkage long sys32_sigsuspend(int history0, int history1, old_sigset_t mask)
 {
 	mask &= _BLOCKABLE;
 	spin_lock_irq(&current->sighand->siglock);
@@ -128,36 +133,37 @@ sys32_sigsuspend(int history0, int history1, old_sigset_t mask)
 	return -ERESTARTNOHAND;
 }
 
-asmlinkage long
-sys32_sigaltstack(const stack_ia32_t __user *uss_ptr,
-		  stack_ia32_t __user *uoss_ptr, 
-		  struct pt_regs *regs)
+asmlinkage long sys32_sigaltstack(const stack_ia32_t __user *uss_ptr,
+				  stack_ia32_t __user *uoss_ptr,
+				  struct pt_regs *regs)
 {
-	stack_t uss,uoss; 
+	stack_t uss, uoss;
 	int ret;
-	mm_segment_t seg; 
-	if (uss_ptr) { 
+	mm_segment_t seg;
+
+	if (uss_ptr) {
 		u32 ptr;
-		memset(&uss,0,sizeof(stack_t));
-		if (!access_ok(VERIFY_READ,uss_ptr,sizeof(stack_ia32_t)) ||
+
+		memset(&uss, 0, sizeof(stack_t));
+		if (!access_ok(VERIFY_READ, uss_ptr, sizeof(stack_ia32_t)) ||
 			    __get_user(ptr, &uss_ptr->ss_sp) ||
 			    __get_user(uss.ss_flags, &uss_ptr->ss_flags) ||
 			    __get_user(uss.ss_size, &uss_ptr->ss_size))
 			return -EFAULT;
 		uss.ss_sp = compat_ptr(ptr);
 	}
-	seg = get_fs(); 
-	set_fs(KERNEL_DS); 
+	seg = get_fs();
+	set_fs(KERNEL_DS);
 	ret = do_sigaltstack(uss_ptr ? &uss : NULL, &uoss, regs->rsp);
-	set_fs(seg); 
+	set_fs(seg);
 	if (ret >= 0 && uoss_ptr)  {
-		if (!access_ok(VERIFY_WRITE,uoss_ptr,sizeof(stack_ia32_t)) ||
+		if (!access_ok(VERIFY_WRITE, uoss_ptr, sizeof(stack_ia32_t)) ||
 		    __put_user(ptr_to_compat(uoss.ss_sp), &uoss_ptr->ss_sp) ||
 		    __put_user(uoss.ss_flags, &uoss_ptr->ss_flags) ||
 		    __put_user(uoss.ss_size, &uoss_ptr->ss_size))
 			ret = -EFAULT;
-	} 	
-	return ret;	
+	}
+	return ret;
 }
 
 /*
@@ -186,18 +192,6 @@ struct rt_sigframe
 	char retcode[8];
 };
 
-static int
-ia32_restore_sigcontext(struct pt_regs *regs, struct sigcontext_ia32 __user *sc, unsigned int *peax)
-{
-	unsigned int err = 0;
-	
-	/* Always make any pending restarted system calls return -EINTR */
-	current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
-#if DEBUG_SIG
-	printk("SIG restore_sigcontext: sc=%p err(%x) eip(%x) cs(%x) flg(%x)\n",
-		sc, sc->err, sc->eip, sc->cs, sc->eflags);
-#endif
 #define COPY(x)		{ \
 	unsigned int reg;			\
 	err |= __get_user(reg, &sc->e ##x);	\
@@ -205,68 +199,78 @@ ia32_restore_sigcontext(struct pt_regs *regs, struct sigcontext_ia32 __user *sc,
 }
 
 #define RELOAD_SEG(seg,mask)						\
-	{ unsigned int cur; 						\
+	{ unsigned int cur;						\
 	  unsigned short pre;						\
 	  err |= __get_user(pre, &sc->seg);				\
-    	  asm volatile("movl %%" #seg ",%0" : "=r" (cur));		\
-	  pre |= mask; 							\
-	  if (pre != cur) loadsegment(seg,pre); }
-
-	/* Reload fs and gs if they have changed in the signal handler.
-	   This does not handle long fs/gs base changes in the handler, but 
-	   does not clobber them at least in the normal case. */ 
-	
-	{
-		unsigned gs, oldgs; 
-		err |= __get_user(gs, &sc->gs);
-		gs |= 3; 
-		asm("movl %%gs,%0" : "=r" (oldgs));
-		if (gs != oldgs)
-		load_gs_index(gs); 
-	} 
-	RELOAD_SEG(fs,3);
-	RELOAD_SEG(ds,3);
-	RELOAD_SEG(es,3);
+	  asm volatile("movl %%" #seg ",%0" : "=r" (cur));		\
+	  pre |= mask;							\
+	  if (pre != cur) loadsegment(seg, pre); }
+
+static int ia32_restore_sigcontext(struct pt_regs *regs,
+				   struct sigcontext_ia32 __user *sc,
+				   unsigned int *peax)
+{
+	unsigned int tmpflags, gs, oldgs, err = 0;
+	struct _fpstate_ia32 __user *buf;
+	u32 tmp;
+
+	/* Always make any pending restarted system calls return -EINTR */
+	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
+#if DEBUG_SIG
+	printk(KERN_DEBUG "SIG restore_sigcontext: "
+	       "sc=%p err(%x) eip(%x) cs(%x) flg(%x)\n",
+	       sc, sc->err, sc->eip, sc->cs, sc->eflags);
+#endif
+
+	/*
+	 * Reload fs and gs if they have changed in the signal
+	 * handler.  This does not handle long fs/gs base changes in
+	 * the handler, but does not clobber them at least in the
+	 * normal case.
+	 */
+	err |= __get_user(gs, &sc->gs);
+	gs |= 3;
+	asm("movl %%gs,%0" : "=r" (oldgs));
+	if (gs != oldgs)
+		load_gs_index(gs);
+
+	RELOAD_SEG(fs, 3);
+	RELOAD_SEG(ds, 3);
+	RELOAD_SEG(es, 3);
 
 	COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx);
 	COPY(dx); COPY(cx); COPY(ip);
-	/* Don't touch extended registers */ 
-	
-	err |= __get_user(regs->cs, &sc->cs); 
-	regs->cs |= 3;  
-	err |= __get_user(regs->ss, &sc->ss); 
-	regs->ss |= 3; 
-
-	{
-		unsigned int tmpflags;
-		err |= __get_user(tmpflags, &sc->eflags);
-		regs->eflags = (regs->eflags & ~0x40DD5) | (tmpflags & 0x40DD5);
-		regs->orig_rax = -1;		/* disable syscall checks */
-	}
+	/* Don't touch extended registers */
+
+	err |= __get_user(regs->cs, &sc->cs);
+	regs->cs |= 3;
+	err |= __get_user(regs->ss, &sc->ss);
+	regs->ss |= 3;
+
+	err |= __get_user(tmpflags, &sc->eflags);
+	regs->eflags = (regs->eflags & ~0x40DD5) | (tmpflags & 0x40DD5);
+	/* disable syscall checks */
+	regs->orig_rax = -1;
+
+	err |= __get_user(tmp, &sc->fpstate);
+	buf = compat_ptr(tmp);
+	if (buf) {
+		if (!access_ok(VERIFY_READ, buf, sizeof(*buf)))
+			goto badframe;
+		err |= restore_i387_ia32(current, buf, 0);
+	} else {
+		struct task_struct *me = current;
 
-	{
-		u32 tmp;
-		struct _fpstate_ia32 __user * buf;
-		err |= __get_user(tmp, &sc->fpstate);
-		buf = compat_ptr(tmp);
-		if (buf) {
-			if (!access_ok(VERIFY_READ, buf, sizeof(*buf)))
-				goto badframe;
-			err |= restore_i387_ia32(current, buf, 0);
-		} else {
-			struct task_struct *me = current;
-			if (used_math()) {
-				clear_fpu(me);
-				clear_used_math();
-			}
+		if (used_math()) {
+			clear_fpu(me);
+			clear_used_math();
 		}
 	}
 
-	{ 
-		u32 tmp;
-		err |= __get_user(tmp, &sc->eax);
-		*peax = tmp;
-	}
+	err |= __get_user(tmp, &sc->eax);
+	*peax = tmp;
+
 	return err;
 
 badframe:
@@ -283,7 +287,8 @@ asmlinkage long sys32_sigreturn(struct pt_regs *regs)
 		goto badframe;
 	if (__get_user(set.sig[0], &frame->sc.oldmask)
 	    || (_COMPAT_NSIG_WORDS > 1
-		&& __copy_from_user((((char *) &set.sig) + 4), &frame->extramask,
+		&& __copy_from_user((((char *) &set.sig) + 4),
+				    &frame->extramask,
 				    sizeof(frame->extramask))))
 		goto badframe;
 
@@ -292,7 +297,7 @@ asmlinkage long sys32_sigreturn(struct pt_regs *regs)
 	current->blocked = set;
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
-	
+
 	if (ia32_restore_sigcontext(regs, &frame->sc, &eax))
 		goto badframe;
 	return eax;
@@ -300,7 +305,7 @@ asmlinkage long sys32_sigreturn(struct pt_regs *regs)
 badframe:
 	signal_fault(regs, frame, "32bit sigreturn");
 	return 0;
-}	
+}
 
 asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
 {
@@ -321,7 +326,7 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
 	current->blocked = set;
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
-	
+
 	if (ia32_restore_sigcontext(regs, &frame->uc.uc_mcontext, &eax))
 		goto badframe;
 
@@ -332,17 +337,17 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
 	return eax;
 
 badframe:
-	signal_fault(regs,frame,"32bit rt sigreturn");
+	signal_fault(regs, frame, "32bit rt sigreturn");
 	return 0;
-}	
+}
 
 /*
  * Set up a signal frame.
  */
 
-static int
-ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc, struct _fpstate_ia32 __user *fpstate,
-		 struct pt_regs *regs, unsigned int mask)
+static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
+				 struct _fpstate_ia32 __user *fpstate,
+				 struct pt_regs *regs, unsigned int mask)
 {
 	int tmp, err = 0;
 
@@ -375,7 +380,7 @@ ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc, struct _fpstate_ia32 __
 	tmp = save_i387_ia32(current, fpstate, regs, 0);
 	if (tmp < 0)
 		err = -EFAULT;
-	else { 
+	else {
 		clear_used_math();
 		stts();
 		err |= __put_user(ptr_to_compat(tmp ? fpstate : NULL),
@@ -392,8 +397,8 @@ ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc, struct _fpstate_ia32 __
 /*
  * Determine which stack to use..
  */
-static void __user *
-get_sigframe(struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
+static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
+				 size_t frame_size)
 {
 	unsigned long rsp;
 
@@ -409,9 +414,8 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
 	/* This is the legacy signal stack switching. */
 	else if ((regs->ss & 0xffff) != __USER_DS &&
 		!(ka->sa.sa_flags & SA_RESTORER) &&
-		 ka->sa.sa_restorer) {
+		 ka->sa.sa_restorer)
 		rsp = (unsigned long) ka->sa.sa_restorer;
-	}
 
 	rsp -= frame_size;
 	/* Align the stack pointer according to the i386 ABI,
@@ -421,11 +425,25 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
 }
 
 int ia32_setup_frame(int sig, struct k_sigaction *ka,
-		     compat_sigset_t *set, struct pt_regs * regs)
+		     compat_sigset_t *set, struct pt_regs *regs)
 {
 	struct sigframe __user *frame;
+	void __user *restorer;
 	int err = 0;
 
+	/* copy_to_user optimizes that into a single 8 byte store */
+	static const struct {
+		u16 poplmovl;
+		u32 val;
+		u16 int80;
+		u16 pad;
+	} __attribute__((packed)) code = {
+		0xb858,		 /* popl %eax ; movl $...,%eax */
+		__NR_ia32_sigreturn,
+		0x80cd,		/* int $0x80 */
+		0,
+	};
+
 	frame = get_sigframe(ka, regs, sizeof(*frame));
 
 	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
@@ -443,38 +461,24 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
 	if (_COMPAT_NSIG_WORDS > 1) {
 		err |= __copy_to_user(frame->extramask, &set->sig[1],
 				      sizeof(frame->extramask));
+		if (err)
+			goto give_sigsegv;
 	}
-	if (err)
-		goto give_sigsegv;
 
 	/* Return stub is in 32bit vsyscall page */
-	{ 
-		void __user *restorer;
-		if (current->binfmt->hasvdso)
-			restorer = VSYSCALL32_SIGRETURN;
-		else
-			restorer = (void *)&frame->retcode;
-		if (ka->sa.sa_flags & SA_RESTORER)
-			restorer = ka->sa.sa_restorer;       
-		err |= __put_user(ptr_to_compat(restorer), &frame->pretcode);
-	}
-	/* These are actually not used anymore, but left because some 
-	   gdb versions depend on them as a marker. */
-	{ 
-		/* copy_to_user optimizes that into a single 8 byte store */
-		static const struct { 
-			u16 poplmovl;
-			u32 val;
-			u16 int80;    
-			u16 pad; 
-		} __attribute__((packed)) code = { 
-			0xb858,		 /* popl %eax ; movl $...,%eax */
-			__NR_ia32_sigreturn,   
-			0x80cd,		/* int $0x80 */
-			0,
-		}; 
-		err |= __copy_to_user(frame->retcode, &code, 8); 
-	}
+	if (current->binfmt->hasvdso)
+		restorer = VSYSCALL32_SIGRETURN;
+	else
+		restorer = (void *)&frame->retcode;
+	if (ka->sa.sa_flags & SA_RESTORER)
+		restorer = ka->sa.sa_restorer;
+	err |= __put_user(ptr_to_compat(restorer), &frame->pretcode);
+
+	/*
+	 * These are actually not used anymore, but left because some
+	 * gdb versions depend on them as a marker.
+	 */
+	err |= __copy_to_user(frame->retcode, &code, 8);
 	if (err)
 		goto give_sigsegv;
 
@@ -487,11 +491,11 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
 	regs->rdx = 0;
 	regs->rcx = 0;
 
-	asm volatile("movl %0,%%ds" :: "r" (__USER32_DS)); 
-	asm volatile("movl %0,%%es" :: "r" (__USER32_DS)); 
+	asm volatile("movl %0,%%ds" :: "r" (__USER32_DS));
+	asm volatile("movl %0,%%es" :: "r" (__USER32_DS));
 
-	regs->cs = __USER32_CS; 
-	regs->ss = __USER32_DS; 
+	regs->cs = __USER32_CS;
+	regs->ss = __USER32_DS;
 
 	set_fs(USER_DS);
 	regs->eflags &= ~TF_MASK;
@@ -499,8 +503,8 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
 		ptrace_notify(SIGTRAP);
 
 #if DEBUG_SIG
-	printk("SIG deliver (%s:%d): sp=%p pc=%lx ra=%u\n",
-		current->comm, current->pid, frame, regs->rip, frame->pretcode);
+	printk(KERN_DEBUG "SIG deliver (%s:%d): sp=%p pc=%lx ra=%u\n",
+	       current->comm, current->pid, frame, regs->rip, frame->pretcode);
 #endif
 
 	return 0;
@@ -511,25 +515,34 @@ give_sigsegv:
 }
 
 int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
-			compat_sigset_t *set, struct pt_regs * regs)
+			compat_sigset_t *set, struct pt_regs *regs)
 {
 	struct rt_sigframe __user *frame;
+	struct exec_domain *ed = current_thread_info()->exec_domain;
+	void __user *restorer = VSYSCALL32_RTSIGRETURN;
 	int err = 0;
 
+	/* __copy_to_user optimizes that into a single 8 byte store */
+	static const struct {
+		u8 movl;
+		u32 val;
+		u16 int80;
+		u16 pad;
+		u8  pad2;
+	} __attribute__((packed)) code = {
+		0xb8,
+		__NR_ia32_rt_sigreturn,
+		0x80cd,
+		0,
+	};
+
 	frame = get_sigframe(ka, regs, sizeof(*frame));
 
 	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
 		goto give_sigsegv;
 
-	{
-		struct exec_domain *ed = current_thread_info()->exec_domain;
-		err |= __put_user((ed
-		    	   && ed->signal_invmap
-		    	   && sig < 32
-		    	   ? ed->signal_invmap[sig]
-			   : sig),
-			  &frame->sig);
-	}
+	err |= __put_user((ed && ed->signal_invmap && sig < 32
+			   ? ed->signal_invmap[sig] : sig), &frame->sig);
 	err |= __put_user(ptr_to_compat(&frame->info), &frame->pinfo);
 	err |= __put_user(ptr_to_compat(&frame->uc), &frame->puc);
 	err |= copy_siginfo_to_user32(&frame->info, info);
@@ -544,38 +557,20 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 			  &frame->uc.uc_stack.ss_flags);
 	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
 	err |= ia32_setup_sigcontext(&frame->uc.uc_mcontext, &frame->fpstate,
-			        regs, set->sig[0]);
+				     regs, set->sig[0]);
 	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
 	if (err)
 		goto give_sigsegv;
 
-	
-	{ 
-		void __user *restorer = VSYSCALL32_RTSIGRETURN; 
-		if (ka->sa.sa_flags & SA_RESTORER)
-			restorer = ka->sa.sa_restorer;       
-		err |= __put_user(ptr_to_compat(restorer), &frame->pretcode);
-	}
+	if (ka->sa.sa_flags & SA_RESTORER)
+		restorer = ka->sa.sa_restorer;
+	err |= __put_user(ptr_to_compat(restorer), &frame->pretcode);
 
-	/* This is movl $,%eax ; int $0x80 */
-	/* Not actually used anymore, but left because some gdb versions
-	   need it. */ 
-	{ 
-		/* __copy_to_user optimizes that into a single 8 byte store */
-		static const struct { 
-			u8 movl; 
-			u32 val; 
-			u16 int80; 
-			u16 pad;
-			u8  pad2;				
-		} __attribute__((packed)) code = { 
-			0xb8,
-			__NR_ia32_rt_sigreturn,
-			0x80cd,
-			0,
-		}; 
-		err |= __copy_to_user(frame->retcode, &code, 8); 
-	} 
+	/*
+	 * Not actually used anymore, but left because some gdb
+	 * versions need it.
+	 */
+	err |= __copy_to_user(frame->retcode, &code, 8);
 	if (err)
 		goto give_sigsegv;
 
@@ -593,11 +588,11 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	regs->rdx = (unsigned long) &frame->info;
 	regs->rcx = (unsigned long) &frame->uc;
 
-	asm volatile("movl %0,%%ds" :: "r" (__USER32_DS)); 
-	asm volatile("movl %0,%%es" :: "r" (__USER32_DS)); 
-	
-	regs->cs = __USER32_CS; 
-	regs->ss = __USER32_DS; 
+	asm volatile("movl %0,%%ds" :: "r" (__USER32_DS));
+	asm volatile("movl %0,%%es" :: "r" (__USER32_DS));
+
+	regs->cs = __USER32_CS;
+	regs->ss = __USER32_DS;
 
 	set_fs(USER_DS);
 	regs->eflags &= ~TF_MASK;
@@ -605,8 +600,8 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 		ptrace_notify(SIGTRAP);
 
 #if DEBUG_SIG
-	printk("SIG deliver (%s:%d): sp=%p pc=%lx ra=%u\n",
-		current->comm, current->pid, frame, regs->rip, frame->pretcode);
+	printk(KERN_DEBUG "SIG deliver (%s:%d): sp=%p pc=%lx ra=%u\n",
+	       current->comm, current->pid, frame, regs->rip, frame->pretcode);
 #endif
 
 	return 0;
-- 
cgit v1.2.3-59-g8ed1b


From 2da06b4e5da96fff4f07cc35af1db407e1e21aa7 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:08 +0100
Subject: x86: clean up arch/x86/ia32/ipc32.c

White space and coding style cleanup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/ia32/ipc32.c | 30 ++++++++++++++----------------
 1 file changed, 14 insertions(+), 16 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ipc32.c b/arch/x86/ia32/ipc32.c
index 7b3342e5aab5..d21991ce606c 100644
--- a/arch/x86/ia32/ipc32.c
+++ b/arch/x86/ia32/ipc32.c
@@ -9,9 +9,8 @@
 #include <linux/ipc.h>
 #include <linux/compat.h>
 
-asmlinkage long
-sys32_ipc(u32 call, int first, int second, int third,
-		compat_uptr_t ptr, u32 fifth)
+asmlinkage long sys32_ipc(u32 call, int first, int second, int third,
+			  compat_uptr_t ptr, u32 fifth)
 {
 	int version;
 
@@ -19,36 +18,35 @@ sys32_ipc(u32 call, int first, int second, int third,
 	call &= 0xffff;
 
 	switch (call) {
-	      case SEMOP:
+	case SEMOP:
 		/* struct sembuf is the same on 32 and 64bit :)) */
 		return sys_semtimedop(first, compat_ptr(ptr), second, NULL);
-	      case SEMTIMEDOP:
+	case SEMTIMEDOP:
 		return compat_sys_semtimedop(first, compat_ptr(ptr), second,
 						compat_ptr(fifth));
-	      case SEMGET:
+	case SEMGET:
 		return sys_semget(first, second, third);
-	      case SEMCTL:
+	case SEMCTL:
 		return compat_sys_semctl(first, second, third, compat_ptr(ptr));
 
-	      case MSGSND:
+	case MSGSND:
 		return compat_sys_msgsnd(first, second, third, compat_ptr(ptr));
-	      case MSGRCV:
+	case MSGRCV:
 		return compat_sys_msgrcv(first, second, fifth, third,
 					 version, compat_ptr(ptr));
-	      case MSGGET:
+	case MSGGET:
 		return sys_msgget((key_t) first, second);
-	      case MSGCTL:
+	case MSGCTL:
 		return compat_sys_msgctl(first, second, compat_ptr(ptr));
 
-	      case SHMAT:
+	case SHMAT:
 		return compat_sys_shmat(first, second, third, version,
 					compat_ptr(ptr));
-		break;
-	      case SHMDT:
+	case SHMDT:
 		return sys_shmdt(compat_ptr(ptr));
-	      case SHMGET:
+	case SHMGET:
 		return sys_shmget(first, (unsigned)second, third);
-	      case SHMCTL:
+	case SHMCTL:
 		return compat_sys_shmctl(first, second, compat_ptr(ptr));
 	}
 	return -ENOSYS;
-- 
cgit v1.2.3-59-g8ed1b


From 5de15d42e4326b11ff9f3e733343fe7d4ece700b Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:08 +0100
Subject: x86: clean up arch/x86/ia32/ptrace32.c

White space and coding style clenaup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/ia32/ptrace32.c | 190 ++++++++++++++++++++++++++---------------------
 1 file changed, 107 insertions(+), 83 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ptrace32.c b/arch/x86/ia32/ptrace32.c
index 4a233ad6269c..9d754b640205 100644
--- a/arch/x86/ia32/ptrace32.c
+++ b/arch/x86/ia32/ptrace32.c
@@ -1,13 +1,13 @@
-/* 
+/*
  * 32bit ptrace for x86-64.
  *
  * Copyright 2001,2002 Andi Kleen, SuSE Labs.
- * Some parts copied from arch/i386/kernel/ptrace.c. See that file for earlier 
+ * Some parts copied from arch/i386/kernel/ptrace.c. See that file for earlier
  * copyright.
- * 
- * This allows to access 64bit processes too; but there is no way to see the extended 
- * register contents.
- */ 
+ *
+ * This allows to access 64bit processes too; but there is no way to
+ * see the extended register contents.
+ */
 
 #include <linux/kernel.h>
 #include <linux/stddef.h>
@@ -35,8 +35,9 @@
  */
 #define FLAG_MASK 0x54dd5UL
 
-#define R32(l,q) \
-	case offsetof(struct user32, regs.l): stack[offsetof(struct pt_regs, q)/8] = val; break
+#define R32(l,q)							\
+	case offsetof(struct user32, regs.l):				\
+		stack[offsetof(struct pt_regs, q) / 8] = val; break
 
 static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 {
@@ -45,30 +46,35 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 
 	switch (regno) {
 	case offsetof(struct user32, regs.fs):
-		if (val && (val & 3) != 3) return -EIO; 
+		if (val && (val & 3) != 3)
+			return -EIO;
 		child->thread.fsindex = val & 0xffff;
 		break;
 	case offsetof(struct user32, regs.gs):
-		if (val && (val & 3) != 3) return -EIO; 
+		if (val && (val & 3) != 3)
+			return -EIO;
 		child->thread.gsindex = val & 0xffff;
 		break;
 	case offsetof(struct user32, regs.ds):
-		if (val && (val & 3) != 3) return -EIO; 
+		if (val && (val & 3) != 3)
+			return -EIO;
 		child->thread.ds = val & 0xffff;
 		break;
 	case offsetof(struct user32, regs.es):
 		child->thread.es = val & 0xffff;
 		break;
-	case offsetof(struct user32, regs.ss): 
-		if ((val & 3) != 3) return -EIO;
-        	stack[offsetof(struct pt_regs, ss)/8] = val & 0xffff;
+	case offsetof(struct user32, regs.ss):
+		if ((val & 3) != 3)
+			return -EIO;
+		stack[offsetof(struct pt_regs, ss)/8] = val & 0xffff;
 		break;
-	case offsetof(struct user32, regs.cs): 
-		if ((val & 3) != 3) return -EIO;
+	case offsetof(struct user32, regs.cs):
+		if ((val & 3) != 3)
+			return -EIO;
 		stack[offsetof(struct pt_regs, cs)/8] = val & 0xffff;
 		break;
 
-	R32(ebx, rbx); 
+	R32(ebx, rbx);
 	R32(ecx, rcx);
 	R32(edx, rdx);
 	R32(edi, rdi);
@@ -81,12 +87,13 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 
 	case offsetof(struct user32, regs.eflags): {
 		__u64 *flags = &stack[offsetof(struct pt_regs, eflags)/8];
+
 		val &= FLAG_MASK;
 		*flags = val | (*flags & ~FLAG_MASK);
 		break;
 	}
 
-	case offsetof(struct user32, u_debugreg[4]): 
+	case offsetof(struct user32, u_debugreg[4]):
 	case offsetof(struct user32, u_debugreg[5]):
 		return -EIO;
 
@@ -108,36 +115,40 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 
 	case offsetof(struct user32, u_debugreg[6]):
 		child->thread.debugreg6 = val;
-		break; 
+		break;
 
 	case offsetof(struct user32, u_debugreg[7]):
 		val &= ~DR_CONTROL_RESERVED;
 		/* See arch/i386/kernel/ptrace.c for an explanation of
 		 * this awkward check.*/
-		for(i=0; i<4; i++)
+		for (i = 0; i < 4; i++)
 			if ((0x5454 >> ((val >> (16 + 4*i)) & 0xf)) & 1)
 			       return -EIO;
-		child->thread.debugreg7 = val; 
+		child->thread.debugreg7 = val;
 		if (val)
 			set_tsk_thread_flag(child, TIF_DEBUG);
 		else
 			clear_tsk_thread_flag(child, TIF_DEBUG);
-		break; 
-		    
+		break;
+
 	default:
 		if (regno > sizeof(struct user32) || (regno & 3))
 			return -EIO;
-	       
-		/* Other dummy fields in the virtual user structure are ignored */ 
-		break; 		
+
+		/*
+		 * Other dummy fields in the virtual user structure
+		 * are ignored
+		 */
+		break;
 	}
 	return 0;
 }
 
 #undef R32
 
-#define R32(l,q) \
-	case offsetof(struct user32, regs.l): *val = stack[offsetof(struct pt_regs, q)/8]; break
+#define R32(l,q)							\
+	case offsetof(struct user32, regs.l):				\
+		*val = stack[offsetof(struct pt_regs, q)/8]; break
 
 static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 {
@@ -145,7 +156,7 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 
 	switch (regno) {
 	case offsetof(struct user32, regs.fs):
-	        *val = child->thread.fsindex;
+		*val = child->thread.fsindex;
 		break;
 	case offsetof(struct user32, regs.gs):
 		*val = child->thread.gsindex;
@@ -159,7 +170,7 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 
 	R32(cs, cs);
 	R32(ss, ss);
-	R32(ebx, rbx); 
+	R32(ebx, rbx);
 	R32(ecx, rcx);
 	R32(edx, rdx);
 	R32(edi, rdi);
@@ -171,32 +182,35 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 	R32(eflags, eflags);
 	R32(esp, rsp);
 
-	case offsetof(struct user32, u_debugreg[0]): 
-		*val = child->thread.debugreg0; 
-		break; 
-	case offsetof(struct user32, u_debugreg[1]): 
-		*val = child->thread.debugreg1; 
-		break; 
-	case offsetof(struct user32, u_debugreg[2]): 
-		*val = child->thread.debugreg2; 
-		break; 
-	case offsetof(struct user32, u_debugreg[3]): 
-		*val = child->thread.debugreg3; 
-		break; 
-	case offsetof(struct user32, u_debugreg[6]): 
-		*val = child->thread.debugreg6; 
-		break; 
-	case offsetof(struct user32, u_debugreg[7]): 
-		*val = child->thread.debugreg7; 
-		break; 
-		    
+	case offsetof(struct user32, u_debugreg[0]):
+		*val = child->thread.debugreg0;
+		break;
+	case offsetof(struct user32, u_debugreg[1]):
+		*val = child->thread.debugreg1;
+		break;
+	case offsetof(struct user32, u_debugreg[2]):
+		*val = child->thread.debugreg2;
+		break;
+	case offsetof(struct user32, u_debugreg[3]):
+		*val = child->thread.debugreg3;
+		break;
+	case offsetof(struct user32, u_debugreg[6]):
+		*val = child->thread.debugreg6;
+		break;
+	case offsetof(struct user32, u_debugreg[7]):
+		*val = child->thread.debugreg7;
+		break;
+
 	default:
 		if (regno > sizeof(struct user32) || (regno & 3))
 			return -EIO;
 
-		/* Other dummy fields in the virtual user structure are ignored */ 
+		/*
+		 * Other dummy fields in the virtual user structure
+		 * are ignored
+		 */
 		*val = 0;
-		break; 		
+		break;
 	}
 	return 0;
 }
@@ -205,10 +219,11 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 
 static long ptrace32_siginfo(unsigned request, u32 pid, u32 addr, u32 data)
 {
-	int ret;
-	compat_siginfo_t __user *si32 = compat_ptr(data);
-	siginfo_t ssi; 
 	siginfo_t __user *si = compat_alloc_user_space(sizeof(siginfo_t));
+	compat_siginfo_t __user *si32 = compat_ptr(data);
+	siginfo_t ssi;
+	int ret;
+
 	if (request == PTRACE_SETSIGINFO) {
 		memset(&ssi, 0, sizeof(siginfo_t));
 		ret = copy_siginfo_from_user32(&ssi, si32);
@@ -231,12 +246,12 @@ static long ptrace32_siginfo(unsigned request, u32 pid, u32 addr, u32 data)
 asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 {
 	struct task_struct *child;
-	struct pt_regs *childregs; 
+	struct pt_regs *childregs;
 	void __user *datap = compat_ptr(data);
 	int ret;
 	__u32 val;
 
-	switch (request) { 
+	switch (request) {
 	case PTRACE_TRACEME:
 	case PTRACE_ATTACH:
 	case PTRACE_KILL:
@@ -248,7 +263,7 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 	case PTRACE_SETOPTIONS:
 	case PTRACE_SET_THREAD_AREA:
 	case PTRACE_GET_THREAD_AREA:
-		return sys_ptrace(request, pid, addr, data); 
+		return sys_ptrace(request, pid, addr, data);
 
 	default:
 		return -EINVAL;
@@ -257,7 +272,7 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 	case PTRACE_PEEKDATA:
 	case PTRACE_POKEDATA:
 	case PTRACE_POKETEXT:
-	case PTRACE_POKEUSR:       
+	case PTRACE_POKEUSR:
 	case PTRACE_PEEKUSR:
 	case PTRACE_GETREGS:
 	case PTRACE_SETREGS:
@@ -287,17 +302,19 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 	case PTRACE_PEEKDATA:
 	case PTRACE_PEEKTEXT:
 		ret = 0;
-		if (access_process_vm(child, addr, &val, sizeof(u32), 0)!=sizeof(u32))
+		if (access_process_vm(child, addr, &val, sizeof(u32), 0) !=
+		    sizeof(u32))
 			ret = -EIO;
 		else
-			ret = put_user(val, (unsigned int __user *)datap); 
-		break; 
+			ret = put_user(val, (unsigned int __user *)datap);
+		break;
 
 	case PTRACE_POKEDATA:
 	case PTRACE_POKETEXT:
 		ret = 0;
-		if (access_process_vm(child, addr, &data, sizeof(u32), 1)!=sizeof(u32))
-			ret = -EIO; 
+		if (access_process_vm(child, addr, &data, sizeof(u32), 1) !=
+		    sizeof(u32))
+			ret = -EIO;
 		break;
 
 	case PTRACE_PEEKUSR:
@@ -312,14 +329,15 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 
 	case PTRACE_GETREGS: { /* Get all gp regs from the child. */
 		int i;
-	  	if (!access_ok(VERIFY_WRITE, datap, 16*4)) {
+
+		if (!access_ok(VERIFY_WRITE, datap, 16*4)) {
 			ret = -EIO;
 			break;
 		}
 		ret = 0;
-		for ( i = 0; i <= 16*4 ; i += sizeof(__u32) ) {
+		for (i = 0; i <= 16*4; i += sizeof(__u32)) {
 			getreg32(child, i, &val);
-			ret |= __put_user(val,(u32 __user *)datap);
+			ret |= __put_user(val, (u32 __user *)datap);
 			datap += sizeof(u32);
 		}
 		break;
@@ -328,12 +346,13 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 	case PTRACE_SETREGS: { /* Set all gp regs in the child. */
 		unsigned long tmp;
 		int i;
-	  	if (!access_ok(VERIFY_READ, datap, 16*4)) {
+
+		if (!access_ok(VERIFY_READ, datap, 16*4)) {
 			ret = -EIO;
 			break;
 		}
-		ret = 0; 
-		for ( i = 0; i <= 16*4; i += sizeof(u32) ) {
+		ret = 0;
+		for (i = 0; i <= 16*4; i += sizeof(u32)) {
 			ret |= __get_user(tmp, (u32 __user *)datap);
 			putreg32(child, i, tmp);
 			datap += sizeof(u32);
@@ -342,17 +361,17 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 	}
 
 	case PTRACE_GETFPREGS:
-		ret = -EIO; 
-		if (!access_ok(VERIFY_READ, compat_ptr(data), 
+		ret = -EIO;
+		if (!access_ok(VERIFY_READ, compat_ptr(data),
 			       sizeof(struct user_i387_struct)))
 			break;
 		save_i387_ia32(child, datap, childregs, 1);
-		ret = 0; 
+		ret = 0;
 			break;
 
 	case PTRACE_SETFPREGS:
 		ret = -EIO;
-		if (!access_ok(VERIFY_WRITE, datap, 
+		if (!access_ok(VERIFY_WRITE, datap,
 			       sizeof(struct user_i387_struct)))
 			break;
 		ret = 0;
@@ -360,9 +379,10 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 		restore_i387_ia32(child, datap, 1);
 		break;
 
-	case PTRACE_GETFPXREGS: { 
+	case PTRACE_GETFPXREGS: {
 		struct user32_fxsr_struct __user *u = datap;
-		init_fpu(child); 
+
+		init_fpu(child);
 		ret = -EIO;
 		if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
 			break;
@@ -370,27 +390,31 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 		if (__copy_to_user(u, &child->thread.i387.fxsave, sizeof(*u)))
 			break;
 		ret = __put_user(childregs->cs, &u->fcs);
-		ret |= __put_user(child->thread.ds, &u->fos); 
-		break; 
-	} 
-	case PTRACE_SETFPXREGS: { 
+		ret |= __put_user(child->thread.ds, &u->fos);
+		break;
+	}
+	case PTRACE_SETFPXREGS: {
 		struct user32_fxsr_struct __user *u = datap;
+
 		unlazy_fpu(child);
 		ret = -EIO;
 		if (!access_ok(VERIFY_READ, u, sizeof(*u)))
 			break;
-		/* no checking to be bug-to-bug compatible with i386. */
-		/* but silence warning */
+		/*
+		 * no checking to be bug-to-bug compatible with i386.
+		 * but silence warning
+		 */
 		if (__copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u)))
 			;
 		set_stopped_child_used_math(child);
 		child->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
-		ret = 0; 
+		ret = 0;
 		break;
 	}
 
 	case PTRACE_GETEVENTMSG:
-		ret = put_user(child->ptrace_message,(unsigned int __user *)compat_ptr(data));
+		ret = put_user(child->ptrace_message,
+			       (unsigned int __user *)compat_ptr(data));
 		break;
 
 	default:
-- 
cgit v1.2.3-59-g8ed1b


From c202f298de59c17c0a9799dc0e1b9e0629347935 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:08 +0100
Subject: x86: clean up arch/x86/ia32/sys_ia32.c

White space and coding style clenaup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/ia32/sys_ia32.c | 498 ++++++++++++++++++++++++-----------------------
 include/linux/compat.h   |   4 +
 2 files changed, 257 insertions(+), 245 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index bee96d614432..58991abc5b59 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -1,29 +1,29 @@
 /*
  * sys_ia32.c: Conversion between 32bit and 64bit native syscalls. Based on
- *             sys_sparc32 
+ *             sys_sparc32
  *
  * Copyright (C) 2000		VA Linux Co
  * Copyright (C) 2000		Don Dugger <n0ano@valinux.com>
- * Copyright (C) 1999 		Arun Sharma <arun.sharma@intel.com>
- * Copyright (C) 1997,1998 	Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- * Copyright (C) 1997 		David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1999		Arun Sharma <arun.sharma@intel.com>
+ * Copyright (C) 1997,1998	Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 1997		David S. Miller (davem@caip.rutgers.edu)
  * Copyright (C) 2000		Hewlett-Packard Co.
  * Copyright (C) 2000		David Mosberger-Tang <davidm@hpl.hp.com>
- * Copyright (C) 2000,2001,2002	Andi Kleen, SuSE Labs (x86-64 port) 
+ * Copyright (C) 2000,2001,2002	Andi Kleen, SuSE Labs (x86-64 port)
  *
  * These routines maintain argument size conversion between 32bit and 64bit
- * environment. In 2.5 most of this should be moved to a generic directory. 
+ * environment. In 2.5 most of this should be moved to a generic directory.
  *
  * This file assumes that there is a hole at the end of user address space.
- * 
- * Some of the functions are LE specific currently. These are hopefully all marked.
- * This should be fixed.
+ *
+ * Some of the functions are LE specific currently. These are
+ * hopefully all marked.  This should be fixed.
  */
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
-#include <linux/fs.h> 
-#include <linux/file.h> 
+#include <linux/fs.h>
+#include <linux/file.h>
 #include <linux/signal.h>
 #include <linux/syscalls.h>
 #include <linux/resource.h>
@@ -90,43 +90,44 @@ int cp_compat_stat(struct kstat *kbuf, struct compat_stat __user *ubuf)
 	if (sizeof(ino) < sizeof(kbuf->ino) && ino != kbuf->ino)
 		return -EOVERFLOW;
 	if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct compat_stat)) ||
-	    __put_user (old_encode_dev(kbuf->dev), &ubuf->st_dev) ||
-	    __put_user (ino, &ubuf->st_ino) ||
-	    __put_user (kbuf->mode, &ubuf->st_mode) ||
-	    __put_user (kbuf->nlink, &ubuf->st_nlink) ||
-	    __put_user (uid, &ubuf->st_uid) ||
-	    __put_user (gid, &ubuf->st_gid) ||
-	    __put_user (old_encode_dev(kbuf->rdev), &ubuf->st_rdev) ||
-	    __put_user (kbuf->size, &ubuf->st_size) ||
-	    __put_user (kbuf->atime.tv_sec, &ubuf->st_atime) ||
-	    __put_user (kbuf->atime.tv_nsec, &ubuf->st_atime_nsec) ||
-	    __put_user (kbuf->mtime.tv_sec, &ubuf->st_mtime) ||
-	    __put_user (kbuf->mtime.tv_nsec, &ubuf->st_mtime_nsec) ||
-	    __put_user (kbuf->ctime.tv_sec, &ubuf->st_ctime) ||
-	    __put_user (kbuf->ctime.tv_nsec, &ubuf->st_ctime_nsec) ||
-	    __put_user (kbuf->blksize, &ubuf->st_blksize) ||
-	    __put_user (kbuf->blocks, &ubuf->st_blocks))
+	    __put_user(old_encode_dev(kbuf->dev), &ubuf->st_dev) ||
+	    __put_user(ino, &ubuf->st_ino) ||
+	    __put_user(kbuf->mode, &ubuf->st_mode) ||
+	    __put_user(kbuf->nlink, &ubuf->st_nlink) ||
+	    __put_user(uid, &ubuf->st_uid) ||
+	    __put_user(gid, &ubuf->st_gid) ||
+	    __put_user(old_encode_dev(kbuf->rdev), &ubuf->st_rdev) ||
+	    __put_user(kbuf->size, &ubuf->st_size) ||
+	    __put_user(kbuf->atime.tv_sec, &ubuf->st_atime) ||
+	    __put_user(kbuf->atime.tv_nsec, &ubuf->st_atime_nsec) ||
+	    __put_user(kbuf->mtime.tv_sec, &ubuf->st_mtime) ||
+	    __put_user(kbuf->mtime.tv_nsec, &ubuf->st_mtime_nsec) ||
+	    __put_user(kbuf->ctime.tv_sec, &ubuf->st_ctime) ||
+	    __put_user(kbuf->ctime.tv_nsec, &ubuf->st_ctime_nsec) ||
+	    __put_user(kbuf->blksize, &ubuf->st_blksize) ||
+	    __put_user(kbuf->blocks, &ubuf->st_blocks))
 		return -EFAULT;
 	return 0;
 }
 
-asmlinkage long
-sys32_truncate64(char __user * filename, unsigned long offset_low, unsigned long offset_high)
+asmlinkage long sys32_truncate64(char __user *filename,
+				 unsigned long offset_low,
+				 unsigned long offset_high)
 {
        return sys_truncate(filename, ((loff_t) offset_high << 32) | offset_low);
 }
 
-asmlinkage long
-sys32_ftruncate64(unsigned int fd, unsigned long offset_low, unsigned long offset_high)
+asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
+				  unsigned long offset_high)
 {
        return sys_ftruncate(fd, ((loff_t) offset_high << 32) | offset_low);
 }
 
-/* Another set for IA32/LFS -- x86_64 struct stat is different due to 
-   support for 64bit inode numbers. */
-
-static int
-cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
+/*
+ * Another set for IA32/LFS -- x86_64 struct stat is different due to
+ * support for 64bit inode numbers.
+ */
+static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
 {
 	typeof(ubuf->st_uid) uid = 0;
 	typeof(ubuf->st_gid) gid = 0;
@@ -134,38 +135,39 @@ cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
 	SET_GID(gid, stat->gid);
 	if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) ||
 	    __put_user(huge_encode_dev(stat->dev), &ubuf->st_dev) ||
-	    __put_user (stat->ino, &ubuf->__st_ino) ||
-	    __put_user (stat->ino, &ubuf->st_ino) ||
-	    __put_user (stat->mode, &ubuf->st_mode) ||
-	    __put_user (stat->nlink, &ubuf->st_nlink) ||
-	    __put_user (uid, &ubuf->st_uid) ||
-	    __put_user (gid, &ubuf->st_gid) ||
-	    __put_user (huge_encode_dev(stat->rdev), &ubuf->st_rdev) ||
-	    __put_user (stat->size, &ubuf->st_size) ||
-	    __put_user (stat->atime.tv_sec, &ubuf->st_atime) ||
-	    __put_user (stat->atime.tv_nsec, &ubuf->st_atime_nsec) ||
-	    __put_user (stat->mtime.tv_sec, &ubuf->st_mtime) ||
-	    __put_user (stat->mtime.tv_nsec, &ubuf->st_mtime_nsec) ||
-	    __put_user (stat->ctime.tv_sec, &ubuf->st_ctime) ||
-	    __put_user (stat->ctime.tv_nsec, &ubuf->st_ctime_nsec) ||
-	    __put_user (stat->blksize, &ubuf->st_blksize) ||
-	    __put_user (stat->blocks, &ubuf->st_blocks))
+	    __put_user(stat->ino, &ubuf->__st_ino) ||
+	    __put_user(stat->ino, &ubuf->st_ino) ||
+	    __put_user(stat->mode, &ubuf->st_mode) ||
+	    __put_user(stat->nlink, &ubuf->st_nlink) ||
+	    __put_user(uid, &ubuf->st_uid) ||
+	    __put_user(gid, &ubuf->st_gid) ||
+	    __put_user(huge_encode_dev(stat->rdev), &ubuf->st_rdev) ||
+	    __put_user(stat->size, &ubuf->st_size) ||
+	    __put_user(stat->atime.tv_sec, &ubuf->st_atime) ||
+	    __put_user(stat->atime.tv_nsec, &ubuf->st_atime_nsec) ||
+	    __put_user(stat->mtime.tv_sec, &ubuf->st_mtime) ||
+	    __put_user(stat->mtime.tv_nsec, &ubuf->st_mtime_nsec) ||
+	    __put_user(stat->ctime.tv_sec, &ubuf->st_ctime) ||
+	    __put_user(stat->ctime.tv_nsec, &ubuf->st_ctime_nsec) ||
+	    __put_user(stat->blksize, &ubuf->st_blksize) ||
+	    __put_user(stat->blocks, &ubuf->st_blocks))
 		return -EFAULT;
 	return 0;
 }
 
-asmlinkage long
-sys32_stat64(char __user * filename, struct stat64 __user *statbuf)
+asmlinkage long sys32_stat64(char __user *filename,
+			     struct stat64 __user *statbuf)
 {
 	struct kstat stat;
 	int ret = vfs_stat(filename, &stat);
+
 	if (!ret)
 		ret = cp_stat64(statbuf, &stat);
 	return ret;
 }
 
-asmlinkage long
-sys32_lstat64(char __user * filename, struct stat64 __user *statbuf)
+asmlinkage long sys32_lstat64(char __user *filename,
+			      struct stat64 __user *statbuf)
 {
 	struct kstat stat;
 	int ret = vfs_lstat(filename, &stat);
@@ -174,8 +176,7 @@ sys32_lstat64(char __user * filename, struct stat64 __user *statbuf)
 	return ret;
 }
 
-asmlinkage long
-sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
+asmlinkage long sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
 {
 	struct kstat stat;
 	int ret = vfs_fstat(fd, &stat);
@@ -184,9 +185,8 @@ sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
 	return ret;
 }
 
-asmlinkage long
-sys32_fstatat(unsigned int dfd, char __user *filename,
-	      struct stat64 __user* statbuf, int flag)
+asmlinkage long sys32_fstatat(unsigned int dfd, char __user *filename,
+			      struct stat64 __user *statbuf, int flag)
 {
 	struct kstat stat;
 	int error = -EINVAL;
@@ -221,8 +221,7 @@ struct mmap_arg_struct {
 	unsigned int offset;
 };
 
-asmlinkage long
-sys32_mmap(struct mmap_arg_struct __user *arg)
+asmlinkage long sys32_mmap(struct mmap_arg_struct __user *arg)
 {
 	struct mmap_arg_struct a;
 	struct file *file = NULL;
@@ -233,33 +232,33 @@ sys32_mmap(struct mmap_arg_struct __user *arg)
 		return -EFAULT;
 
 	if (a.offset & ~PAGE_MASK)
-		return -EINVAL; 
+		return -EINVAL;
 
 	if (!(a.flags & MAP_ANONYMOUS)) {
 		file = fget(a.fd);
 		if (!file)
 			return -EBADF;
 	}
-	
-	mm = current->mm; 
-	down_write(&mm->mmap_sem); 
-	retval = do_mmap_pgoff(file, a.addr, a.len, a.prot, a.flags, a.offset>>PAGE_SHIFT);
+
+	mm = current->mm;
+	down_write(&mm->mmap_sem);
+	retval = do_mmap_pgoff(file, a.addr, a.len, a.prot, a.flags,
+			       a.offset>>PAGE_SHIFT);
 	if (file)
 		fput(file);
 
-	up_write(&mm->mmap_sem); 
+	up_write(&mm->mmap_sem);
 
 	return retval;
 }
 
-asmlinkage long 
-sys32_mprotect(unsigned long start, size_t len, unsigned long prot)
+asmlinkage long sys32_mprotect(unsigned long start, size_t len,
+			       unsigned long prot)
 {
-	return sys_mprotect(start,len,prot); 
+	return sys_mprotect(start, len, prot);
 }
 
-asmlinkage long
-sys32_pipe(int __user *fd)
+asmlinkage long sys32_pipe(int __user *fd)
 {
 	int retval;
 	int fds[2];
@@ -269,13 +268,13 @@ sys32_pipe(int __user *fd)
 		goto out;
 	if (copy_to_user(fd, fds, sizeof(fds)))
 		retval = -EFAULT;
-  out:
+out:
 	return retval;
 }
 
-asmlinkage long
-sys32_rt_sigaction(int sig, struct sigaction32 __user *act,
-		   struct sigaction32 __user *oact,  unsigned int sigsetsize)
+asmlinkage long sys32_rt_sigaction(int sig, struct sigaction32 __user *act,
+				   struct sigaction32 __user *oact,
+				   unsigned int sigsetsize)
 {
 	struct k_sigaction new_ka, old_ka;
 	int ret;
@@ -291,12 +290,17 @@ sys32_rt_sigaction(int sig, struct sigaction32 __user *act,
 		if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
 		    __get_user(handler, &act->sa_handler) ||
 		    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-		    __get_user(restorer, &act->sa_restorer)||
-		    __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t)))
+		    __get_user(restorer, &act->sa_restorer) ||
+		    __copy_from_user(&set32, &act->sa_mask,
+				     sizeof(compat_sigset_t)))
 			return -EFAULT;
 		new_ka.sa.sa_handler = compat_ptr(handler);
 		new_ka.sa.sa_restorer = compat_ptr(restorer);
-		/* FIXME: here we rely on _COMPAT_NSIG_WORS to be >= than _NSIG_WORDS << 1 */
+
+		/*
+		 * FIXME: here we rely on _COMPAT_NSIG_WORS to be >=
+		 * than _NSIG_WORDS << 1
+		 */
 		switch (_NSIG_WORDS) {
 		case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6]
 				| (((long)set32.sig[7]) << 32);
@@ -312,7 +316,10 @@ sys32_rt_sigaction(int sig, struct sigaction32 __user *act,
 	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
 
 	if (!ret && oact) {
-		/* FIXME: here we rely on _COMPAT_NSIG_WORS to be >= than _NSIG_WORDS << 1 */
+		/*
+		 * FIXME: here we rely on _COMPAT_NSIG_WORS to be >=
+		 * than _NSIG_WORDS << 1
+		 */
 		switch (_NSIG_WORDS) {
 		case 4:
 			set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32);
@@ -328,23 +335,26 @@ sys32_rt_sigaction(int sig, struct sigaction32 __user *act,
 			set32.sig[0] = old_ka.sa.sa_mask.sig[0];
 		}
 		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-		    __put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler) ||
-		    __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer) ||
+		    __put_user(ptr_to_compat(old_ka.sa.sa_handler),
+			       &oact->sa_handler) ||
+		    __put_user(ptr_to_compat(old_ka.sa.sa_restorer),
+			       &oact->sa_restorer) ||
 		    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-		    __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t)))
+		    __copy_to_user(&oact->sa_mask, &set32,
+				   sizeof(compat_sigset_t)))
 			return -EFAULT;
 	}
 
 	return ret;
 }
 
-asmlinkage long
-sys32_sigaction (int sig, struct old_sigaction32 __user *act, struct old_sigaction32 __user *oact)
+asmlinkage long sys32_sigaction(int sig, struct old_sigaction32 __user *act,
+				struct old_sigaction32 __user *oact)
 {
-        struct k_sigaction new_ka, old_ka;
-        int ret;
+	struct k_sigaction new_ka, old_ka;
+	int ret;
 
-        if (act) {
+	if (act) {
 		compat_old_sigset_t mask;
 		compat_uptr_t handler, restorer;
 
@@ -359,33 +369,35 @@ sys32_sigaction (int sig, struct old_sigaction32 __user *act, struct old_sigacti
 		new_ka.sa.sa_restorer = compat_ptr(restorer);
 
 		siginitset(&new_ka.sa.sa_mask, mask);
-        }
+	}
 
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
 
 	if (!ret && oact) {
 		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-		    __put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler) ||
-		    __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer) ||
+		    __put_user(ptr_to_compat(old_ka.sa.sa_handler),
+			       &oact->sa_handler) ||
+		    __put_user(ptr_to_compat(old_ka.sa.sa_restorer),
+			       &oact->sa_restorer) ||
 		    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
 		    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
 			return -EFAULT;
-        }
+	}
 
 	return ret;
 }
 
-asmlinkage long
-sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
-			compat_sigset_t __user *oset, unsigned int sigsetsize)
+asmlinkage long sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
+				     compat_sigset_t __user *oset,
+				     unsigned int sigsetsize)
 {
 	sigset_t s;
 	compat_sigset_t s32;
 	int ret;
 	mm_segment_t old_fs = get_fs();
-	
+
 	if (set) {
-		if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
+		if (copy_from_user(&s32, set, sizeof(compat_sigset_t)))
 			return -EFAULT;
 		switch (_NSIG_WORDS) {
 		case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
@@ -394,13 +406,14 @@ sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
 		case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
 		}
 	}
-	set_fs (KERNEL_DS);
+	set_fs(KERNEL_DS);
 	ret = sys_rt_sigprocmask(how,
 				 set ? (sigset_t __user *)&s : NULL,
 				 oset ? (sigset_t __user *)&s : NULL,
-				 sigsetsize); 
-	set_fs (old_fs);
-	if (ret) return ret;
+				 sigsetsize);
+	set_fs(old_fs);
+	if (ret)
+		return ret;
 	if (oset) {
 		switch (_NSIG_WORDS) {
 		case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
@@ -408,52 +421,49 @@ sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
 		case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
 		case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
 		}
-		if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
+		if (copy_to_user(oset, &s32, sizeof(compat_sigset_t)))
 			return -EFAULT;
 	}
 	return 0;
 }
 
-static inline long
-get_tv32(struct timeval *o, struct compat_timeval __user *i)
+static inline long get_tv32(struct timeval *o, struct compat_timeval __user *i)
 {
-	int err = -EFAULT; 
-	if (access_ok(VERIFY_READ, i, sizeof(*i))) { 
+	int err = -EFAULT;
+
+	if (access_ok(VERIFY_READ, i, sizeof(*i))) {
 		err = __get_user(o->tv_sec, &i->tv_sec);
 		err |= __get_user(o->tv_usec, &i->tv_usec);
 	}
-	return err; 
+	return err;
 }
 
-static inline long
-put_tv32(struct compat_timeval __user *o, struct timeval *i)
+static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
 {
 	int err = -EFAULT;
-	if (access_ok(VERIFY_WRITE, o, sizeof(*o))) { 
+
+	if (access_ok(VERIFY_WRITE, o, sizeof(*o))) {
 		err = __put_user(i->tv_sec, &o->tv_sec);
 		err |= __put_user(i->tv_usec, &o->tv_usec);
-	} 
-	return err; 
+	}
+	return err;
 }
 
-extern unsigned int alarm_setitimer(unsigned int seconds);
-
-asmlinkage long
-sys32_alarm(unsigned int seconds)
+asmlinkage long sys32_alarm(unsigned int seconds)
 {
 	return alarm_setitimer(seconds);
 }
 
-/* Translations due to time_t size differences.  Which affects all
-   sorts of things, like timeval and itimerval.  */
-
-extern struct timezone sys_tz;
-
-asmlinkage long
-sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
+/*
+ * Translations due to time_t size differences. Which affects all
+ * sorts of things, like timeval and itimerval.
+ */
+asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv,
+				   struct timezone __user *tz)
 {
 	if (tv) {
 		struct timeval ktv;
+
 		do_gettimeofday(&ktv);
 		if (put_tv32(tv, &ktv))
 			return -EFAULT;
@@ -465,14 +475,14 @@ sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
 	return 0;
 }
 
-asmlinkage long
-sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
+asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv,
+				   struct timezone __user *tz)
 {
 	struct timeval ktv;
 	struct timespec kts;
 	struct timezone ktz;
 
- 	if (tv) {
+	if (tv) {
 		if (get_tv32(&ktv, tv))
 			return -EFAULT;
 		kts.tv_sec = ktv.tv_sec;
@@ -494,8 +504,7 @@ struct sel_arg_struct {
 	unsigned int tvp;
 };
 
-asmlinkage long
-sys32_old_select(struct sel_arg_struct __user *arg)
+asmlinkage long sys32_old_select(struct sel_arg_struct __user *arg)
 {
 	struct sel_arg_struct a;
 
@@ -505,50 +514,45 @@ sys32_old_select(struct sel_arg_struct __user *arg)
 				 compat_ptr(a.exp), compat_ptr(a.tvp));
 }
 
-extern asmlinkage long
-compat_sys_wait4(compat_pid_t pid, compat_uint_t * stat_addr, int options,
-		 struct compat_rusage *ru);
-
-asmlinkage long
-sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options)
+asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr,
+			      int options)
 {
 	return compat_sys_wait4(pid, stat_addr, options, NULL);
 }
 
 /* 32-bit timeval and related flotsam.  */
 
-asmlinkage long
-sys32_sysfs(int option, u32 arg1, u32 arg2)
+asmlinkage long sys32_sysfs(int option, u32 arg1, u32 arg2)
 {
 	return sys_sysfs(option, arg1, arg2);
 }
 
-asmlinkage long
-sys32_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
+asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
+				    struct compat_timespec __user *interval)
 {
 	struct timespec t;
 	int ret;
-	mm_segment_t old_fs = get_fs ();
-	
-	set_fs (KERNEL_DS);
+	mm_segment_t old_fs = get_fs();
+
+	set_fs(KERNEL_DS);
 	ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
-	set_fs (old_fs);
+	set_fs(old_fs);
 	if (put_compat_timespec(&t, interval))
 		return -EFAULT;
 	return ret;
 }
 
-asmlinkage long
-sys32_rt_sigpending(compat_sigset_t __user *set, compat_size_t sigsetsize)
+asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
+				    compat_size_t sigsetsize)
 {
 	sigset_t s;
 	compat_sigset_t s32;
 	int ret;
 	mm_segment_t old_fs = get_fs();
-		
-	set_fs (KERNEL_DS);
+
+	set_fs(KERNEL_DS);
 	ret = sys_rt_sigpending((sigset_t __user *)&s, sigsetsize);
-	set_fs (old_fs);
+	set_fs(old_fs);
 	if (!ret) {
 		switch (_NSIG_WORDS) {
 		case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
@@ -556,30 +560,29 @@ sys32_rt_sigpending(compat_sigset_t __user *set, compat_size_t sigsetsize)
 		case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
 		case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
 		}
-		if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
+		if (copy_to_user(set, &s32, sizeof(compat_sigset_t)))
 			return -EFAULT;
 	}
 	return ret;
 }
 
-asmlinkage long
-sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
+asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig,
+				      compat_siginfo_t __user *uinfo)
 {
 	siginfo_t info;
 	int ret;
 	mm_segment_t old_fs = get_fs();
-	
+
 	if (copy_siginfo_from_user32(&info, uinfo))
 		return -EFAULT;
-	set_fs (KERNEL_DS);
+	set_fs(KERNEL_DS);
 	ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *)&info);
-	set_fs (old_fs);
+	set_fs(old_fs);
 	return ret;
 }
 
 /* These are here just in case some old ia32 binary calls it. */
-asmlinkage long
-sys32_pause(void)
+asmlinkage long sys32_pause(void)
 {
 	current->state = TASK_INTERRUPTIBLE;
 	schedule();
@@ -599,25 +602,25 @@ struct sysctl_ia32 {
 };
 
 
-asmlinkage long
-sys32_sysctl(struct sysctl_ia32 __user *args32)
+asmlinkage long sys32_sysctl(struct sysctl_ia32 __user *args32)
 {
 	struct sysctl_ia32 a32;
-	mm_segment_t old_fs = get_fs ();
+	mm_segment_t old_fs = get_fs();
 	void __user *oldvalp, *newvalp;
 	size_t oldlen;
 	int __user *namep;
 	long ret;
 
-	if (copy_from_user(&a32, args32, sizeof (a32)))
+	if (copy_from_user(&a32, args32, sizeof(a32)))
 		return -EFAULT;
 
 	/*
-	 * We need to pre-validate these because we have to disable address checking
-	 * before calling do_sysctl() because of OLDLEN but we can't run the risk of the
-	 * user specifying bad addresses here.  Well, since we're dealing with 32 bit
-	 * addresses, we KNOW that access_ok() will always succeed, so this is an
-	 * expensive NOP, but so what...
+	 * We need to pre-validate these because we have to disable
+	 * address checking before calling do_sysctl() because of
+	 * OLDLEN but we can't run the risk of the user specifying bad
+	 * addresses here.  Well, since we're dealing with 32 bit
+	 * addresses, we KNOW that access_ok() will always succeed, so
+	 * this is an expensive NOP, but so what...
 	 */
 	namep = compat_ptr(a32.name);
 	oldvalp = compat_ptr(a32.oldval);
@@ -636,34 +639,34 @@ sys32_sysctl(struct sysctl_ia32 __user *args32)
 	unlock_kernel();
 	set_fs(old_fs);
 
-	if (oldvalp && put_user (oldlen, (int __user *)compat_ptr(a32.oldlenp)))
+	if (oldvalp && put_user(oldlen, (int __user *)compat_ptr(a32.oldlenp)))
 		return -EFAULT;
 
 	return ret;
 }
 #endif
 
-/* warning: next two assume little endian */ 
-asmlinkage long
-sys32_pread(unsigned int fd, char __user *ubuf, u32 count, u32 poslo, u32 poshi)
+/* warning: next two assume little endian */
+asmlinkage long sys32_pread(unsigned int fd, char __user *ubuf, u32 count,
+			    u32 poslo, u32 poshi)
 {
 	return sys_pread64(fd, ubuf, count,
 			 ((loff_t)AA(poshi) << 32) | AA(poslo));
 }
 
-asmlinkage long
-sys32_pwrite(unsigned int fd, char __user *ubuf, u32 count, u32 poslo, u32 poshi)
+asmlinkage long sys32_pwrite(unsigned int fd, char __user *ubuf, u32 count,
+			     u32 poslo, u32 poshi)
 {
 	return sys_pwrite64(fd, ubuf, count,
 			  ((loff_t)AA(poshi) << 32) | AA(poslo));
 }
 
 
-asmlinkage long
-sys32_personality(unsigned long personality)
+asmlinkage long sys32_personality(unsigned long personality)
 {
 	int ret;
-	if (personality(current->personality) == PER_LINUX32 && 
+
+	if (personality(current->personality) == PER_LINUX32 &&
 		personality == PER_LINUX)
 		personality = PER_LINUX32;
 	ret = sys_personality(personality);
@@ -672,34 +675,33 @@ sys32_personality(unsigned long personality)
 	return ret;
 }
 
-asmlinkage long
-sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, s32 count)
+asmlinkage long sys32_sendfile(int out_fd, int in_fd,
+			       compat_off_t __user *offset, s32 count)
 {
 	mm_segment_t old_fs = get_fs();
 	int ret;
 	off_t of;
-	
+
 	if (offset && get_user(of, offset))
 		return -EFAULT;
-		
+
 	set_fs(KERNEL_DS);
 	ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL,
 			   count);
 	set_fs(old_fs);
-	
+
 	if (offset && put_user(of, offset))
 		return -EFAULT;
-		
 	return ret;
 }
 
 asmlinkage long sys32_mmap2(unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags,
-	unsigned long fd, unsigned long pgoff)
+			    unsigned long prot, unsigned long flags,
+			    unsigned long fd, unsigned long pgoff)
 {
 	struct mm_struct *mm = current->mm;
 	unsigned long error;
-	struct file * file = NULL;
+	struct file *file = NULL;
 
 	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
 	if (!(flags & MAP_ANONYMOUS)) {
@@ -717,36 +719,35 @@ asmlinkage long sys32_mmap2(unsigned long addr, unsigned long len,
 	return error;
 }
 
-asmlinkage long sys32_olduname(struct oldold_utsname __user * name)
+asmlinkage long sys32_olduname(struct oldold_utsname __user *name)
 {
+	char *arch = "x86_64";
 	int err;
 
 	if (!name)
 		return -EFAULT;
 	if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname)))
 		return -EFAULT;
-  
-  	down_read(&uts_sem);
-
-	err = __copy_to_user(&name->sysname,&utsname()->sysname,
-				__OLD_UTS_LEN);
-	err |= __put_user(0,name->sysname+__OLD_UTS_LEN);
-	err |= __copy_to_user(&name->nodename,&utsname()->nodename,
-				__OLD_UTS_LEN);
-	err |= __put_user(0,name->nodename+__OLD_UTS_LEN);
-	err |= __copy_to_user(&name->release,&utsname()->release,
-				__OLD_UTS_LEN);
-	err |= __put_user(0,name->release+__OLD_UTS_LEN);
-	err |= __copy_to_user(&name->version,&utsname()->version,
-				__OLD_UTS_LEN);
-	err |= __put_user(0,name->version+__OLD_UTS_LEN);
-	{
-		char *arch = "x86_64";
-		if (personality(current->personality) == PER_LINUX32)
-			arch = "i686";
-		 
-		err |= __copy_to_user(&name->machine, arch, strlen(arch)+1);
-	}
+
+	down_read(&uts_sem);
+
+	err = __copy_to_user(&name->sysname, &utsname()->sysname,
+			     __OLD_UTS_LEN);
+	err |= __put_user(0, name->sysname+__OLD_UTS_LEN);
+	err |= __copy_to_user(&name->nodename, &utsname()->nodename,
+			      __OLD_UTS_LEN);
+	err |= __put_user(0, name->nodename+__OLD_UTS_LEN);
+	err |= __copy_to_user(&name->release, &utsname()->release,
+			      __OLD_UTS_LEN);
+	err |= __put_user(0, name->release+__OLD_UTS_LEN);
+	err |= __copy_to_user(&name->version, &utsname()->version,
+			      __OLD_UTS_LEN);
+	err |= __put_user(0, name->version+__OLD_UTS_LEN);
+
+	if (personality(current->personality) == PER_LINUX32)
+		arch = "i686";
+
+	err |= __copy_to_user(&name->machine, arch, strlen(arch) + 1);
 
 	up_read(&uts_sem);
 
@@ -755,17 +756,19 @@ asmlinkage long sys32_olduname(struct oldold_utsname __user * name)
 	return err;
 }
 
-long sys32_uname(struct old_utsname __user * name)
+long sys32_uname(struct old_utsname __user *name)
 {
 	int err;
+
 	if (!name)
 		return -EFAULT;
 	down_read(&uts_sem);
-	err = copy_to_user(name, utsname(), sizeof (*name));
+	err = copy_to_user(name, utsname(), sizeof(*name));
 	up_read(&uts_sem);
-	if (personality(current->personality) == PER_LINUX32) 
+	if (personality(current->personality) == PER_LINUX32)
 		err |= copy_to_user(&name->machine, "i686", 5);
-	return err?-EFAULT:0;
+
+	return err ? -EFAULT : 0;
 }
 
 long sys32_ustat(unsigned dev, struct ustat32 __user *u32p)
@@ -773,27 +776,28 @@ long sys32_ustat(unsigned dev, struct ustat32 __user *u32p)
 	struct ustat u;
 	mm_segment_t seg;
 	int ret;
-	
-	seg = get_fs(); 
-	set_fs(KERNEL_DS); 
+
+	seg = get_fs();
+	set_fs(KERNEL_DS);
 	ret = sys_ustat(dev, (struct ustat __user *)&u);
 	set_fs(seg);
-	if (ret >= 0) { 
-		if (!access_ok(VERIFY_WRITE,u32p,sizeof(struct ustat32)) || 
-		    __put_user((__u32) u.f_tfree, &u32p->f_tfree) ||
-		    __put_user((__u32) u.f_tinode, &u32p->f_tfree) ||
-		    __copy_to_user(&u32p->f_fname, u.f_fname, sizeof(u.f_fname)) ||
-		    __copy_to_user(&u32p->f_fpack, u.f_fpack, sizeof(u.f_fpack)))
-			ret = -EFAULT;
-	}
+	if (ret < 0)
+		return ret;
+
+	if (!access_ok(VERIFY_WRITE, u32p, sizeof(struct ustat32)) ||
+	    __put_user((__u32) u.f_tfree, &u32p->f_tfree) ||
+	    __put_user((__u32) u.f_tinode, &u32p->f_tfree) ||
+	    __copy_to_user(&u32p->f_fname, u.f_fname, sizeof(u.f_fname)) ||
+	    __copy_to_user(&u32p->f_fpack, u.f_fpack, sizeof(u.f_fpack)))
+		ret = -EFAULT;
 	return ret;
-} 
+}
 
 asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv,
 			     compat_uptr_t __user *envp, struct pt_regs *regs)
 {
 	long error;
-	char * filename;
+	char *filename;
 
 	filename = getname(name);
 	error = PTR_ERR(filename);
@@ -814,16 +818,17 @@ asmlinkage long sys32_clone(unsigned int clone_flags, unsigned int newsp,
 {
 	void __user *parent_tid = (void __user *)regs->rdx;
 	void __user *child_tid = (void __user *)regs->rdi;
+
 	if (!newsp)
 		newsp = regs->rsp;
-        return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
+	return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
 }
 
 /*
- * Some system calls that need sign extended arguments. This could be done by a generic wrapper.
- */ 
-
-long sys32_lseek (unsigned int fd, int offset, unsigned int whence)
+ * Some system calls that need sign extended arguments. This could be
+ * done by a generic wrapper.
+ */
+long sys32_lseek(unsigned int fd, int offset, unsigned int whence)
 {
 	return sys_lseek(fd, offset, whence);
 }
@@ -832,49 +837,52 @@ long sys32_kill(int pid, int sig)
 {
 	return sys_kill(pid, sig);
 }
- 
-long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high, 
+
+long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high,
 			__u32 len_low, __u32 len_high, int advice)
-{ 
+{
 	return sys_fadvise64_64(fd,
 			       (((u64)offset_high)<<32) | offset_low,
 			       (((u64)len_high)<<32) | len_low,
-			       advice); 
-} 
+				advice);
+}
 
 long sys32_vm86_warning(void)
-{ 
+{
 	struct task_struct *me = current;
 	static char lastcomm[sizeof(me->comm)];
+
 	if (strncmp(lastcomm, me->comm, sizeof(lastcomm))) {
-		compat_printk(KERN_INFO "%s: vm86 mode not supported on 64 bit kernel\n",
-		       me->comm);
+		compat_printk(KERN_INFO
+			      "%s: vm86 mode not supported on 64 bit kernel\n",
+			      me->comm);
 		strncpy(lastcomm, me->comm, sizeof(lastcomm));
-	} 
+	}
 	return -ENOSYS;
-} 
+}
 
 long sys32_lookup_dcookie(u32 addr_low, u32 addr_high,
-			  char __user * buf, size_t len)
+			  char __user *buf, size_t len)
 {
 	return sys_lookup_dcookie(((u64)addr_high << 32) | addr_low, buf, len);
 }
 
-asmlinkage ssize_t sys32_readahead(int fd, unsigned off_lo, unsigned off_hi, size_t count)
+asmlinkage ssize_t sys32_readahead(int fd, unsigned off_lo, unsigned off_hi,
+				   size_t count)
 {
 	return sys_readahead(fd, ((u64)off_hi << 32) | off_lo, count);
 }
 
 asmlinkage long sys32_sync_file_range(int fd, unsigned off_low, unsigned off_hi,
-			   unsigned n_low, unsigned n_hi,  int flags)
+				      unsigned n_low, unsigned n_hi,  int flags)
 {
 	return sys_sync_file_range(fd,
 				   ((u64)off_hi << 32) | off_low,
 				   ((u64)n_hi << 32) | n_low, flags);
 }
 
-asmlinkage long sys32_fadvise64(int fd, unsigned offset_lo, unsigned offset_hi, size_t len,
-		     int advice)
+asmlinkage long sys32_fadvise64(int fd, unsigned offset_lo, unsigned offset_hi,
+				size_t len, int advice)
 {
 	return sys_fadvise64_64(fd, ((u64)offset_hi << 32) | offset_lo,
 				len, advice);
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 0e69d2cf14aa..ba29d4c59643 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -191,6 +191,10 @@ asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
 		compat_ulong_t __user *outp, compat_ulong_t __user *exp,
 		struct compat_timeval __user *tvp);
 
+asmlinkage long compat_sys_wait4(compat_pid_t pid,
+				 compat_uint_t *stat_addr, int options,
+				 struct compat_rusage *ru);
+
 #define BITS_PER_COMPAT_LONG    (8*sizeof(compat_long_t))
 
 #define BITS_TO_COMPAT_LONGS(bits) \
-- 
cgit v1.2.3-59-g8ed1b


From 6ec875666d826dc6ea228afc9f6b644165081ab5 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:08 +0100
Subject: x86: clean up arch/x86/ia32/syscall32.c

White space and coding style clenaup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/ia32/syscall32.c | 45 ++++++++++++++++++++++++---------------------
 1 file changed, 24 insertions(+), 21 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/syscall32.c b/arch/x86/ia32/syscall32.c
index 15013bac181c..d751d96c2ef2 100644
--- a/arch/x86/ia32/syscall32.c
+++ b/arch/x86/ia32/syscall32.c
@@ -1,8 +1,9 @@
-/* Copyright 2002,2003 Andi Kleen, SuSE Labs */
-
-/* vsyscall handling for 32bit processes. Map a stub page into it 
-   on demand because 32bit cannot reach the kernel's fixmaps */
-
+/*
+ * Copyright 2002,2003 Andi Kleen, SuSE Labs
+ *
+ * vsyscall handling for 32bit processes. Map a stub page into it on
+ * demand because 32bit cannot reach the kernel's fixmaps
+ */
 #include <linux/mm.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
@@ -50,31 +51,33 @@ int syscall32_setup_pages(struct linux_binprm *bprm, int exstack)
 }
 
 static int __init init_syscall32(void)
-{ 
+{
 	char *syscall32_page = (void *)get_zeroed_page(GFP_KERNEL);
-	if (!syscall32_page) 
-		panic("Cannot allocate syscall32 page"); 
+
+	if (!syscall32_page)
+		panic("Cannot allocate syscall32 page");
 	syscall32_pages[0] = virt_to_page(syscall32_page);
- 	if (use_sysenter > 0) {
- 		memcpy(syscall32_page, syscall32_sysenter,
- 		       syscall32_sysenter_end - syscall32_sysenter);
- 	} else {
-  		memcpy(syscall32_page, syscall32_syscall,
-  		       syscall32_syscall_end - syscall32_syscall);
-  	}	
+	if (use_sysenter > 0) {
+		memcpy(syscall32_page, syscall32_sysenter,
+		       syscall32_sysenter_end - syscall32_sysenter);
+	} else {
+		memcpy(syscall32_page, syscall32_syscall,
+		       syscall32_syscall_end - syscall32_syscall);
+	}
 	return 0;
-} 
-	
-__initcall(init_syscall32); 
+}
+__initcall(init_syscall32);
 
 /* May not be __init: called during resume */
 void syscall32_cpu_init(void)
 {
 	if (use_sysenter < 0)
- 		use_sysenter = (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL);
+		use_sysenter = (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL);
 
-	/* Load these always in case some future AMD CPU supports
-	   SYSENTER from compat mode too. */
+	/*
+	 * Load these always in case some future AMD CPU supports
+	 * SYSENTER from compat mode too.
+	 */
 	checking_wrmsrl(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS);
 	checking_wrmsrl(MSR_IA32_SYSENTER_ESP, 0ULL);
 	checking_wrmsrl(MSR_IA32_SYSENTER_EIP, (u64)ia32_sysenter_target);
-- 
cgit v1.2.3-59-g8ed1b


From 5bafb671e20d2a3721589378681326197fc37a5f Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:09 +0100
Subject: x86: clean up arch/x86/ia32/mmap32.c

White space and coding style clenaup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/ia32/mmap32.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/mmap32.c b/arch/x86/ia32/mmap32.c
index e4b84b4a417a..7649370a3144 100644
--- a/arch/x86/ia32/mmap32.c
+++ b/arch/x86/ia32/mmap32.c
@@ -36,8 +36,8 @@
  *
  * Leave an at least ~128 MB hole.
  */
-#define MIN_GAP (128*1024*1024)
-#define MAX_GAP (TASK_SIZE/6*5)
+#define MIN_GAP (128 * 1024 * 1024)
+#define MAX_GAP (TASK_SIZE / 6 * 5)
 
 static inline unsigned long mmap_base(struct mm_struct *mm)
 {
@@ -45,7 +45,7 @@ static inline unsigned long mmap_base(struct mm_struct *mm)
 	unsigned long random_factor = 0;
 
 	if (current->flags & PF_RANDOMIZE)
-		random_factor = get_random_int() % (1024*1024);
+		random_factor = get_random_int() % (1024 * 1024);
 
 	if (gap < MIN_GAP)
 		gap = MIN_GAP;
@@ -66,8 +66,8 @@ void ia32_pick_mmap_layout(struct mm_struct *mm)
 	 * bit is set, or if the expected stack growth is unlimited:
 	 */
 	if (sysctl_legacy_va_layout ||
-			(current->personality & ADDR_COMPAT_LAYOUT) ||
-			current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY) {
+	    (current->personality & ADDR_COMPAT_LAYOUT) ||
+	    current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = arch_get_unmapped_area;
 		mm->unmap_area = arch_unmap_area;
-- 
cgit v1.2.3-59-g8ed1b


From c140df973c07ac328aafd19d4f4c413f2f8902df Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:30:09 +0100
Subject: x86: clean up arch/x86/kernel/aperture_64.c

whitespace cleanup. No code changed:

   text    data     bss     dec     hex filename
   2080      76       4    2160     870 aperture_64.o.before
   2080      76       4    2160     870 aperture_64.o.after

                                       errors   lines of code   errors/KLOC
 arch/x86/kernel/aperture_64.c            114             299         381.2
 arch/x86/kernel/aperture_64.c              0             315             0

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/aperture_64.c | 244 ++++++++++++++++++++++--------------------
 1 file changed, 130 insertions(+), 114 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 5b6992799c9d..250db0527f5d 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -1,12 +1,12 @@
-/* 
+/*
  * Firmware replacement code.
- * 
+ *
  * Work around broken BIOSes that don't set an aperture or only set the
- * aperture in the AGP bridge. 
- * If all fails map the aperture over some low memory.  This is cheaper than 
- * doing bounce buffering. The memory is lost. This is done at early boot 
- * because only the bootmem allocator can allocate 32+MB. 
- * 
+ * aperture in the AGP bridge.
+ * If all fails map the aperture over some low memory.  This is cheaper than
+ * doing bounce buffering. The memory is lost. This is done at early boot
+ * because only the bootmem allocator can allocate 32+MB.
+ *
  * Copyright 2002 Andi Kleen, SuSE Labs.
  */
 #include <linux/kernel.h>
@@ -30,7 +30,7 @@ int gart_iommu_aperture_disabled __initdata = 0;
 int gart_iommu_aperture_allowed __initdata = 0;
 
 int fallback_aper_order __initdata = 1; /* 64MB */
-int fallback_aper_force __initdata = 0; 
+int fallback_aper_force __initdata = 0;
 
 int fix_aperture __initdata = 1;
 
@@ -49,20 +49,20 @@ static void __init insert_aperture_resource(u32 aper_base, u32 aper_size)
 /* This code runs before the PCI subsystem is initialized, so just
    access the northbridge directly. */
 
-static u32 __init allocate_aperture(void) 
+static u32 __init allocate_aperture(void)
 {
 	u32 aper_size;
-	void *p; 
+	void *p;
 
-	if (fallback_aper_order > 7) 
-		fallback_aper_order = 7; 
-	aper_size = (32 * 1024 * 1024) << fallback_aper_order; 
+	if (fallback_aper_order > 7)
+		fallback_aper_order = 7;
+	aper_size = (32 * 1024 * 1024) << fallback_aper_order;
 
-	/* 
-	 * Aperture has to be naturally aligned. This means an 2GB aperture won't
-	 * have much chance of finding a place in the lower 4GB of memory.
-	 * Unfortunately we cannot move it up because that would make the
-	 * IOMMU useless.
+	/*
+	 * Aperture has to be naturally aligned. This means a 2GB aperture
+	 * won't have much chance of finding a place in the lower 4GB of
+	 * memory. Unfortunately we cannot move it up because that would
+	 * make the IOMMU useless.
 	 */
 	p = __alloc_bootmem_nopanic(aper_size, aper_size, 0);
 	if (!p || __pa(p)+aper_size > 0xffffffff) {
@@ -73,54 +73,60 @@ static u32 __init allocate_aperture(void)
 		return 0;
 	}
 	printk("Mapping aperture over %d KB of RAM @ %lx\n",
-	       aper_size >> 10, __pa(p)); 
+	       aper_size >> 10, __pa(p));
 	insert_aperture_resource((u32)__pa(p), aper_size);
-	return (u32)__pa(p); 
+
+	return (u32)__pa(p);
 }
 
 static int __init aperture_valid(u64 aper_base, u32 aper_size)
-{ 
-	if (!aper_base) 
+{
+	if (!aper_base)
 		return 0;
-	if (aper_size < 64*1024*1024) { 
+	if (aper_size < 64*1024*1024) {
 		printk("Aperture too small (%d MB)\n", aper_size>>20);
 		return 0;
 	}
 	if (aper_base + aper_size > 0x100000000UL) {
 		printk("Aperture beyond 4GB. Ignoring.\n");
-		return 0; 
+		return 0;
 	}
 	if (e820_any_mapped(aper_base, aper_base + aper_size, E820_RAM)) {
 		printk("Aperture pointing to e820 RAM. Ignoring.\n");
-		return 0; 
-	} 
+		return 0;
+	}
 	return 1;
-} 
+}
 
 /* Find a PCI capability */
-static __u32 __init find_cap(int num, int slot, int func, int cap) 
-{ 
-	u8 pos;
+static __u32 __init find_cap(int num, int slot, int func, int cap)
+{
 	int bytes;
-	if (!(read_pci_config_16(num,slot,func,PCI_STATUS) & PCI_STATUS_CAP_LIST))
+	u8 pos;
+
+	if (!(read_pci_config_16(num, slot, func, PCI_STATUS) &
+						PCI_STATUS_CAP_LIST))
 		return 0;
-	pos = read_pci_config_byte(num,slot,func,PCI_CAPABILITY_LIST);
-	for (bytes = 0; bytes < 48 && pos >= 0x40; bytes++) { 
+
+	pos = read_pci_config_byte(num, slot, func, PCI_CAPABILITY_LIST);
+	for (bytes = 0; bytes < 48 && pos >= 0x40; bytes++) {
 		u8 id;
-		pos &= ~3; 
-		id = read_pci_config_byte(num,slot,func,pos+PCI_CAP_LIST_ID);
+
+		pos &= ~3;
+		id = read_pci_config_byte(num, slot, func, pos+PCI_CAP_LIST_ID);
 		if (id == 0xff)
 			break;
-		if (id == cap) 
-			return pos; 
-		pos = read_pci_config_byte(num,slot,func,pos+PCI_CAP_LIST_NEXT); 
-	} 
+		if (id == cap)
+			return pos;
+		pos = read_pci_config_byte(num, slot, func,
+						pos+PCI_CAP_LIST_NEXT);
+	}
 	return 0;
-} 
+}
 
 /* Read a standard AGPv3 bridge header */
 static __u32 __init read_agp(int num, int slot, int func, int cap, u32 *order)
-{ 
+{
 	u32 apsize;
 	u32 apsizereg;
 	int nbits;
@@ -128,7 +134,7 @@ static __u32 __init read_agp(int num, int slot, int func, int cap, u32 *order)
 	u64 aper;
 
 	printk("AGP bridge at %02x:%02x:%02x\n", num, slot, func);
-	apsizereg = read_pci_config_16(num,slot,func, cap + 0x14);
+	apsizereg = read_pci_config_16(num, slot, func, cap + 0x14);
 	if (apsizereg == 0xffffffff) {
 		printk("APSIZE in AGP bridge unreadable\n");
 		return 0;
@@ -136,80 +142,84 @@ static __u32 __init read_agp(int num, int slot, int func, int cap, u32 *order)
 
 	apsize = apsizereg & 0xfff;
 	/* Some BIOS use weird encodings not in the AGPv3 table. */
-	if (apsize & 0xff) 
-		apsize |= 0xf00; 
+	if (apsize & 0xff)
+		apsize |= 0xf00;
 	nbits = hweight16(apsize);
 	*order = 7 - nbits;
 	if ((int)*order < 0) /* < 32MB */
 		*order = 0;
-	
-	aper_low = read_pci_config(num,slot,func, 0x10);
-	aper_hi = read_pci_config(num,slot,func,0x14);
+
+	aper_low = read_pci_config(num, slot, func, 0x10);
+	aper_hi = read_pci_config(num, slot, func, 0x14);
 	aper = (aper_low & ~((1<<22)-1)) | ((u64)aper_hi << 32);
 
-	printk("Aperture from AGP @ %Lx size %u MB (APSIZE %x)\n", 
+	printk("Aperture from AGP @ %Lx size %u MB (APSIZE %x)\n",
 	       aper, 32 << *order, apsizereg);
 
 	if (!aperture_valid(aper, (32*1024*1024) << *order))
-	    return 0;
-	return (u32)aper; 
-} 
-
-/* Look for an AGP bridge. Windows only expects the aperture in the
-   AGP bridge and some BIOS forget to initialize the Northbridge too.
-   Work around this here. 
-
-   Do an PCI bus scan by hand because we're running before the PCI
-   subsystem. 
+		return 0;
+	return (u32)aper;
+}
 
-   All K8 AGP bridges are AGPv3 compliant, so we can do this scan
-   generically. It's probably overkill to always scan all slots because
-   the AGP bridges should be always an own bus on the HT hierarchy, 
-   but do it here for future safety. */
+/*
+ * Look for an AGP bridge. Windows only expects the aperture in the
+ * AGP bridge and some BIOS forget to initialize the Northbridge too.
+ * Work around this here.
+ *
+ * Do an PCI bus scan by hand because we're running before the PCI
+ * subsystem.
+ *
+ * All K8 AGP bridges are AGPv3 compliant, so we can do this scan
+ * generically. It's probably overkill to always scan all slots because
+ * the AGP bridges should be always an own bus on the HT hierarchy,
+ * but do it here for future safety.
+ */
 static __u32 __init search_agp_bridge(u32 *order, int *valid_agp)
 {
 	int num, slot, func;
 
 	/* Poor man's PCI discovery */
-	for (num = 0; num < 256; num++) { 
-		for (slot = 0; slot < 32; slot++) { 
-			for (func = 0; func < 8; func++) { 
+	for (num = 0; num < 256; num++) {
+		for (slot = 0; slot < 32; slot++) {
+			for (func = 0; func < 8; func++) {
 				u32 class, cap;
 				u8 type;
-				class = read_pci_config(num,slot,func,
+				class = read_pci_config(num, slot, func,
 							PCI_CLASS_REVISION);
 				if (class == 0xffffffff)
-					break; 
-				
-				switch (class >> 16) { 
+					break;
+
+				switch (class >> 16) {
 				case PCI_CLASS_BRIDGE_HOST:
 				case PCI_CLASS_BRIDGE_OTHER: /* needed? */
 					/* AGP bridge? */
-					cap = find_cap(num,slot,func,PCI_CAP_ID_AGP);
+					cap = find_cap(num, slot, func,
+							PCI_CAP_ID_AGP);
 					if (!cap)
 						break;
-					*valid_agp = 1; 
-					return read_agp(num,slot,func,cap,order);
-				} 
-				
+					*valid_agp = 1;
+					return read_agp(num, slot, func, cap,
+							order);
+				}
+
 				/* No multi-function device? */
-				type = read_pci_config_byte(num,slot,func,
+				type = read_pci_config_byte(num, slot, func,
 							       PCI_HEADER_TYPE);
 				if (!(type & 0x80))
 					break;
-			} 
-		} 
+			}
+		}
 	}
-	printk("No AGP bridge found\n"); 
+	printk("No AGP bridge found\n");
+
 	return 0;
 }
 
 void __init gart_iommu_hole_init(void)
-{ 
-	int fix, num; 
+{
 	u32 aper_size, aper_alloc = 0, aper_order = 0, last_aper_order = 0;
 	u64 aper_base, last_aper_base = 0;
-	int valid_agp = 0;
+	int fix, num, valid_agp = 0;
 
 	if (gart_iommu_aperture_disabled || !fix_aperture ||
 	    !early_pci_allowed())
@@ -218,24 +228,24 @@ void __init gart_iommu_hole_init(void)
 	printk(KERN_INFO  "Checking aperture...\n");
 
 	fix = 0;
-	for (num = 24; num < 32; num++) {		
+	for (num = 24; num < 32; num++) {
 		if (!early_is_k8_nb(read_pci_config(0, num, 3, 0x00)))
 			continue;
 
 		iommu_detected = 1;
 		gart_iommu_aperture = 1;
 
-		aper_order = (read_pci_config(0, num, 3, 0x90) >> 1) & 7; 
-		aper_size = (32 * 1024 * 1024) << aper_order; 
+		aper_order = (read_pci_config(0, num, 3, 0x90) >> 1) & 7;
+		aper_size = (32 * 1024 * 1024) << aper_order;
 		aper_base = read_pci_config(0, num, 3, 0x94) & 0x7fff;
-		aper_base <<= 25; 
+		aper_base <<= 25;
 
-		printk("CPU %d: aperture @ %Lx size %u MB\n", num-24, 
+		printk("CPU %d: aperture @ %Lx size %u MB\n", num-24,
 		       aper_base, aper_size>>20);
-		
+
 		if (!aperture_valid(aper_base, aper_size)) {
-			fix = 1; 
-			break; 
+			fix = 1;
+			break;
 		}
 
 		if ((last_aper_order && aper_order != last_aper_order) ||
@@ -245,27 +255,28 @@ void __init gart_iommu_hole_init(void)
 		}
 		last_aper_order = aper_order;
 		last_aper_base = aper_base;
-	} 
+	}
 
 	if (!fix && !fallback_aper_force) {
 		if (last_aper_base) {
 			unsigned long n = (32 * 1024 * 1024) << last_aper_order;
+
 			insert_aperture_resource((u32)last_aper_base, n);
 		}
-		return; 
+		return;
 	}
 
 	if (!fallback_aper_force)
-		aper_alloc = search_agp_bridge(&aper_order, &valid_agp); 
-		
-	if (aper_alloc) { 
+		aper_alloc = search_agp_bridge(&aper_order, &valid_agp);
+
+	if (aper_alloc) {
 		/* Got the aperture from the AGP bridge */
 	} else if (swiotlb && !valid_agp) {
 		/* Do nothing */
 	} else if ((!no_iommu && end_pfn > MAX_DMA32_PFN) ||
 		   force_iommu ||
 		   valid_agp ||
-		   fallback_aper_force) { 
+		   fallback_aper_force) {
 		printk("Your BIOS doesn't leave a aperture memory hole\n");
 		printk("Please enable the IOMMU option in the BIOS setup\n");
 		printk("This costs you %d MB of RAM\n",
@@ -273,27 +284,32 @@ void __init gart_iommu_hole_init(void)
 
 		aper_order = fallback_aper_order;
 		aper_alloc = allocate_aperture();
-		if (!aper_alloc) { 
-			/* Could disable AGP and IOMMU here, but it's probably
-			   not worth it. But the later users cannot deal with
-			   bad apertures and turning on the aperture over memory
-			   causes very strange problems, so it's better to 
-			   panic early. */
+		if (!aper_alloc) {
+			/*
+			 * Could disable AGP and IOMMU here, but it's
+			 * probably not worth it. But the later users
+			 * cannot deal with bad apertures and turning
+			 * on the aperture over memory causes very
+			 * strange problems, so it's better to panic
+			 * early.
+			 */
 			panic("Not enough memory for aperture");
 		}
-	} else { 
-		return; 
-	} 
+	} else {
+		return;
+	}
 
 	/* Fix up the north bridges */
-	for (num = 24; num < 32; num++) { 		
+	for (num = 24; num < 32; num++) {
 		if (!early_is_k8_nb(read_pci_config(0, num, 3, 0x00)))
-			continue;	
-
-		/* Don't enable translation yet. That is done later. 
-		   Assume this BIOS didn't initialise the GART so 
-		   just overwrite all previous bits */ 
-		write_pci_config(0, num, 3, 0x90, aper_order<<1); 
-		write_pci_config(0, num, 3, 0x94, aper_alloc>>25); 
-	} 
-} 
+			continue;
+
+		/*
+		 * Don't enable translation yet. That is done later.
+		 * Assume this BIOS didn't initialise the GART so
+		 * just overwrite all previous bits
+		 */
+		write_pci_config(0, num, 3, 0x90, aper_order<<1);
+		write_pci_config(0, num, 3, 0x94, aper_alloc>>25);
+	}
+}
-- 
cgit v1.2.3-59-g8ed1b


From 31183ba8fd05b6ddc67ab4d726167cbc52e1b346 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:30:10 +0100
Subject: x86: clean up arch/x86/kernel/aperture_64.c printk()s

clean up arch/x86/kernel/aperture_64.c printk()s.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/aperture_64.c | 42 ++++++++++++++++++++++++------------------
 1 file changed, 24 insertions(+), 18 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 250db0527f5d..52d2beac4556 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -66,14 +66,15 @@ static u32 __init allocate_aperture(void)
 	 */
 	p = __alloc_bootmem_nopanic(aper_size, aper_size, 0);
 	if (!p || __pa(p)+aper_size > 0xffffffff) {
-		printk("Cannot allocate aperture memory hole (%p,%uK)\n",
-		       p, aper_size>>10);
+		printk(KERN_ERR
+			"Cannot allocate aperture memory hole (%p,%uK)\n",
+				p, aper_size>>10);
 		if (p)
 			free_bootmem(__pa(p), aper_size);
 		return 0;
 	}
-	printk("Mapping aperture over %d KB of RAM @ %lx\n",
-	       aper_size >> 10, __pa(p));
+	printk(KERN_INFO "Mapping aperture over %d KB of RAM @ %lx\n",
+			aper_size >> 10, __pa(p));
 	insert_aperture_resource((u32)__pa(p), aper_size);
 
 	return (u32)__pa(p);
@@ -83,18 +84,20 @@ static int __init aperture_valid(u64 aper_base, u32 aper_size)
 {
 	if (!aper_base)
 		return 0;
+
 	if (aper_size < 64*1024*1024) {
-		printk("Aperture too small (%d MB)\n", aper_size>>20);
+		printk(KERN_ERR "Aperture too small (%d MB)\n", aper_size>>20);
 		return 0;
 	}
 	if (aper_base + aper_size > 0x100000000UL) {
-		printk("Aperture beyond 4GB. Ignoring.\n");
+		printk(KERN_ERR "Aperture beyond 4GB. Ignoring.\n");
 		return 0;
 	}
 	if (e820_any_mapped(aper_base, aper_base + aper_size, E820_RAM)) {
-		printk("Aperture pointing to e820 RAM. Ignoring.\n");
+		printk(KERN_ERR "Aperture pointing to e820 RAM. Ignoring.\n");
 		return 0;
 	}
+
 	return 1;
 }
 
@@ -133,10 +136,10 @@ static __u32 __init read_agp(int num, int slot, int func, int cap, u32 *order)
 	u32 aper_low, aper_hi;
 	u64 aper;
 
-	printk("AGP bridge at %02x:%02x:%02x\n", num, slot, func);
+	printk(KERN_INFO "AGP bridge at %02x:%02x:%02x\n", num, slot, func);
 	apsizereg = read_pci_config_16(num, slot, func, cap + 0x14);
 	if (apsizereg == 0xffffffff) {
-		printk("APSIZE in AGP bridge unreadable\n");
+		printk(KERN_ERR "APSIZE in AGP bridge unreadable\n");
 		return 0;
 	}
 
@@ -153,8 +156,8 @@ static __u32 __init read_agp(int num, int slot, int func, int cap, u32 *order)
 	aper_hi = read_pci_config(num, slot, func, 0x14);
 	aper = (aper_low & ~((1<<22)-1)) | ((u64)aper_hi << 32);
 
-	printk("Aperture from AGP @ %Lx size %u MB (APSIZE %x)\n",
-	       aper, 32 << *order, apsizereg);
+	printk(KERN_INFO "Aperture from AGP @ %Lx size %u MB (APSIZE %x)\n",
+			aper, 32 << *order, apsizereg);
 
 	if (!aperture_valid(aper, (32*1024*1024) << *order))
 		return 0;
@@ -210,7 +213,7 @@ static __u32 __init search_agp_bridge(u32 *order, int *valid_agp)
 			}
 		}
 	}
-	printk("No AGP bridge found\n");
+	printk(KERN_INFO "No AGP bridge found\n");
 
 	return 0;
 }
@@ -240,8 +243,8 @@ void __init gart_iommu_hole_init(void)
 		aper_base = read_pci_config(0, num, 3, 0x94) & 0x7fff;
 		aper_base <<= 25;
 
-		printk("CPU %d: aperture @ %Lx size %u MB\n", num-24,
-		       aper_base, aper_size>>20);
+		printk(KERN_INFO "CPU %d: aperture @ %Lx size %u MB\n",
+				num-24, aper_base, aper_size>>20);
 
 		if (!aperture_valid(aper_base, aper_size)) {
 			fix = 1;
@@ -277,10 +280,13 @@ void __init gart_iommu_hole_init(void)
 		   force_iommu ||
 		   valid_agp ||
 		   fallback_aper_force) {
-		printk("Your BIOS doesn't leave a aperture memory hole\n");
-		printk("Please enable the IOMMU option in the BIOS setup\n");
-		printk("This costs you %d MB of RAM\n",
-		       32 << fallback_aper_order);
+		printk(KERN_ERR
+			"Your BIOS doesn't leave a aperture memory hole\n");
+		printk(KERN_ERR
+			"Please enable the IOMMU option in the BIOS setup\n");
+		printk(KERN_ERR
+			"This costs you %d MB of RAM\n",
+				32 << fallback_aper_order);
 
 		aper_order = fallback_aper_order;
 		aper_alloc = allocate_aperture();
-- 
cgit v1.2.3-59-g8ed1b


From a4ec1effce83796209a0258602b0cf50026d86f2 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:30:10 +0100
Subject: x86: mach-voyager, lindent

lindent the mach-voyager files to get rid of more than 300 style errors:

                                       errors   lines of code   errors/KLOC
 arch/x86/mach-voyager/   [old]           409            3729         109.6
 arch/x86/mach-voyager/   [new]            71            3678          19.3

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mach-voyager/setup.c          |  32 +-
 arch/x86/mach-voyager/voyager_basic.c  | 132 +++----
 arch/x86/mach-voyager/voyager_cat.c    | 601 +++++++++++++++--------------
 arch/x86/mach-voyager/voyager_smp.c    | 672 +++++++++++++++------------------
 arch/x86/mach-voyager/voyager_thread.c |  52 ++-
 5 files changed, 718 insertions(+), 771 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mach-voyager/setup.c b/arch/x86/mach-voyager/setup.c
index 3bef977cb29b..81257a861984 100644
--- a/arch/x86/mach-voyager/setup.c
+++ b/arch/x86/mach-voyager/setup.c
@@ -44,7 +44,7 @@ void __init trap_init_hook(void)
 {
 }
 
-static struct irqaction irq0  = {
+static struct irqaction irq0 = {
 	.handler = timer_interrupt,
 	.flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL,
 	.mask = CPU_MASK_NONE,
@@ -59,44 +59,47 @@ void __init time_init_hook(void)
 
 /* Hook for machine specific memory setup. */
 
-char * __init machine_specific_memory_setup(void)
+char *__init machine_specific_memory_setup(void)
 {
 	char *who;
 
 	who = "NOT VOYAGER";
 
-	if(voyager_level == 5) {
+	if (voyager_level == 5) {
 		__u32 addr, length;
 		int i;
 
 		who = "Voyager-SUS";
 
 		e820.nr_map = 0;
-		for(i=0; voyager_memory_detect(i, &addr, &length); i++) {
+		for (i = 0; voyager_memory_detect(i, &addr, &length); i++) {
 			add_memory_region(addr, length, E820_RAM);
 		}
 		return who;
-	} else if(voyager_level == 4) {
+	} else if (voyager_level == 4) {
 		__u32 tom;
-		__u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT)<<8;
+		__u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT) << 8;
 		/* select the DINO config space */
 		outb(VOYAGER_DINO, VOYAGER_CAT_CONFIG_PORT);
 		/* Read DINO top of memory register */
 		tom = ((inb(catbase + 0x4) & 0xf0) << 16)
-			+ ((inb(catbase + 0x5) & 0x7f) << 24);
+		    + ((inb(catbase + 0x5) & 0x7f) << 24);
 
-		if(inb(catbase) != VOYAGER_DINO) {
-			printk(KERN_ERR "Voyager: Failed to get DINO for L4, setting tom to EXT_MEM_K\n");
-			tom = (boot_params.screen_info.ext_mem_k)<<10;
+		if (inb(catbase) != VOYAGER_DINO) {
+			printk(KERN_ERR
+			       "Voyager: Failed to get DINO for L4, setting tom to EXT_MEM_K\n");
+			tom = (boot_params.screen_info.ext_mem_k) << 10;
 		}
 		who = "Voyager-TOM";
 		add_memory_region(0, 0x9f000, E820_RAM);
 		/* map from 1M to top of memory */
-		add_memory_region(1*1024*1024, tom - 1*1024*1024, E820_RAM);
+		add_memory_region(1 * 1024 * 1024, tom - 1 * 1024 * 1024,
+				  E820_RAM);
 		/* FIXME: Should check the ASICs to see if I need to
 		 * take out the 8M window.  Just do it at the moment
 		 * */
-		add_memory_region(8*1024*1024, 8*1024*1024, E820_RESERVED);
+		add_memory_region(8 * 1024 * 1024, 8 * 1024 * 1024,
+				  E820_RESERVED);
 		return who;
 	}
 
@@ -114,8 +117,7 @@ char * __init machine_specific_memory_setup(void)
 		unsigned long mem_size;
 
 		/* compare results from other methods and take the greater */
-		if (boot_params.alt_mem_k
-		    < boot_params.screen_info.ext_mem_k) {
+		if (boot_params.alt_mem_k < boot_params.screen_info.ext_mem_k) {
 			mem_size = boot_params.screen_info.ext_mem_k;
 			who = "BIOS-88";
 		} else {
@@ -126,6 +128,6 @@ char * __init machine_specific_memory_setup(void)
 		e820.nr_map = 0;
 		add_memory_region(0, LOWMEMSIZE(), E820_RAM);
 		add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
-  	}
+	}
 	return who;
 }
diff --git a/arch/x86/mach-voyager/voyager_basic.c b/arch/x86/mach-voyager/voyager_basic.c
index 9b77b39b71a6..6a949e4edde8 100644
--- a/arch/x86/mach-voyager/voyager_basic.c
+++ b/arch/x86/mach-voyager/voyager_basic.c
@@ -35,7 +35,7 @@
 /*
  * Power off function, if any
  */
-void (*pm_power_off)(void);
+void (*pm_power_off) (void);
 EXPORT_SYMBOL(pm_power_off);
 
 int voyager_level = 0;
@@ -43,39 +43,38 @@ int voyager_level = 0;
 struct voyager_SUS *voyager_SUS = NULL;
 
 #ifdef CONFIG_SMP
-static void
-voyager_dump(int dummy1, struct tty_struct *dummy3)
+static void voyager_dump(int dummy1, struct tty_struct *dummy3)
 {
 	/* get here via a sysrq */
 	voyager_smp_dump();
 }
 
 static struct sysrq_key_op sysrq_voyager_dump_op = {
-	.handler	= voyager_dump,
-	.help_msg	= "Voyager",
-	.action_msg	= "Dump Voyager Status",
+	.handler = voyager_dump,
+	.help_msg = "Voyager",
+	.action_msg = "Dump Voyager Status",
 };
 #endif
 
-void
-voyager_detect(struct voyager_bios_info *bios)
+void voyager_detect(struct voyager_bios_info *bios)
 {
-	if(bios->len != 0xff) {
-		int class = (bios->class_1 << 8) 
-			| (bios->class_2 & 0xff);
+	if (bios->len != 0xff) {
+		int class = (bios->class_1 << 8)
+		    | (bios->class_2 & 0xff);
 
 		printk("Voyager System detected.\n"
 		       "        Class %x, Revision %d.%d\n",
 		       class, bios->major, bios->minor);
-		if(class == VOYAGER_LEVEL4) 
+		if (class == VOYAGER_LEVEL4)
 			voyager_level = 4;
-		else if(class < VOYAGER_LEVEL5_AND_ABOVE)
+		else if (class < VOYAGER_LEVEL5_AND_ABOVE)
 			voyager_level = 3;
 		else
 			voyager_level = 5;
 		printk("        Architecture Level %d\n", voyager_level);
-		if(voyager_level < 4)
-			printk("\n**WARNING**: Voyager HAL only supports Levels 4 and 5 Architectures at the moment\n\n");
+		if (voyager_level < 4)
+			printk
+			    ("\n**WARNING**: Voyager HAL only supports Levels 4 and 5 Architectures at the moment\n\n");
 		/* install the power off handler */
 		pm_power_off = voyager_power_off;
 #ifdef CONFIG_SMP
@@ -86,15 +85,13 @@ voyager_detect(struct voyager_bios_info *bios)
 	}
 }
 
-void
-voyager_system_interrupt(int cpl, void *dev_id)
+void voyager_system_interrupt(int cpl, void *dev_id)
 {
 	printk("Voyager: detected system interrupt\n");
 }
 
 /* Routine to read information from the extended CMOS area */
-__u8
-voyager_extended_cmos_read(__u16 addr)
+__u8 voyager_extended_cmos_read(__u16 addr)
 {
 	outb(addr & 0xff, 0x74);
 	outb((addr >> 8) & 0xff, 0x75);
@@ -108,12 +105,11 @@ voyager_extended_cmos_read(__u16 addr)
 
 typedef struct ClickMap {
 	struct Entry {
-		__u32	Address;
-		__u32	Length;
+		__u32 Address;
+		__u32 Length;
 	} Entry[CLICK_ENTRIES];
 } ClickMap_t;
 
-
 /* This routine is pretty much an awful hack to read the bios clickmap by
  * mapping it into page 0.  There are usually three regions in the map:
  * 	Base Memory
@@ -122,8 +118,7 @@ typedef struct ClickMap {
  *
  * Returns are 0 for failure and 1 for success on extracting region.
  */
-int __init
-voyager_memory_detect(int region, __u32 *start, __u32 *length)
+int __init voyager_memory_detect(int region, __u32 * start, __u32 * length)
 {
 	int i;
 	int retval = 0;
@@ -132,13 +127,14 @@ voyager_memory_detect(int region, __u32 *start, __u32 *length)
 	unsigned long map_addr;
 	unsigned long old;
 
-	if(region >= CLICK_ENTRIES) {
+	if (region >= CLICK_ENTRIES) {
 		printk("Voyager: Illegal ClickMap region %d\n", region);
 		return 0;
 	}
 
-	for(i = 0; i < sizeof(cmos); i++)
-		cmos[i] = voyager_extended_cmos_read(VOYAGER_MEMORY_CLICKMAP + i);
+	for (i = 0; i < sizeof(cmos); i++)
+		cmos[i] =
+		    voyager_extended_cmos_read(VOYAGER_MEMORY_CLICKMAP + i);
 
 	map_addr = *(unsigned long *)cmos;
 
@@ -147,10 +143,10 @@ voyager_memory_detect(int region, __u32 *start, __u32 *length)
 	pg0[0] = ((map_addr & PAGE_MASK) | _PAGE_RW | _PAGE_PRESENT);
 	local_flush_tlb();
 	/* now clear everything out but page 0 */
-	map = (ClickMap_t *)(map_addr & (~PAGE_MASK));
+	map = (ClickMap_t *) (map_addr & (~PAGE_MASK));
 
 	/* zero length is the end of the clickmap */
-	if(map->Entry[region].Length != 0) {
+	if (map->Entry[region].Length != 0) {
 		*length = map->Entry[region].Length * CLICK_SIZE;
 		*start = map->Entry[region].Address;
 		retval = 1;
@@ -165,10 +161,9 @@ voyager_memory_detect(int region, __u32 *start, __u32 *length)
 /* voyager specific handling code for timer interrupts.  Used to hand
  * off the timer tick to the SMP code, since the VIC doesn't have an
  * internal timer (The QIC does, but that's another story). */
-void
-voyager_timer_interrupt(void)
+void voyager_timer_interrupt(void)
 {
-	if((jiffies & 0x3ff) == 0) {
+	if ((jiffies & 0x3ff) == 0) {
 
 		/* There seems to be something flaky in either
 		 * hardware or software that is resetting the timer 0
@@ -186,18 +181,20 @@ voyager_timer_interrupt(void)
 		__u16 val;
 
 		spin_lock(&i8253_lock);
-		
+
 		outb_p(0x00, 0x43);
 		val = inb_p(0x40);
 		val |= inb(0x40) << 8;
 		spin_unlock(&i8253_lock);
 
-		if(val > LATCH) {
-			printk("\nVOYAGER: countdown timer value too high (%d), resetting\n\n", val);
+		if (val > LATCH) {
+			printk
+			    ("\nVOYAGER: countdown timer value too high (%d), resetting\n\n",
+			     val);
 			spin_lock(&i8253_lock);
-			outb(0x34,0x43);
-			outb_p(LATCH & 0xff , 0x40);	/* LSB */
-			outb(LATCH >> 8 , 0x40);	/* MSB */
+			outb(0x34, 0x43);
+			outb_p(LATCH & 0xff, 0x40);	/* LSB */
+			outb(LATCH >> 8, 0x40);	/* MSB */
 			spin_unlock(&i8253_lock);
 		}
 	}
@@ -206,14 +203,13 @@ voyager_timer_interrupt(void)
 #endif
 }
 
-void
-voyager_power_off(void)
+void voyager_power_off(void)
 {
 	printk("VOYAGER Power Off\n");
 
-	if(voyager_level == 5) {
+	if (voyager_level == 5) {
 		voyager_cat_power_off();
-	} else if(voyager_level == 4) {
+	} else if (voyager_level == 4) {
 		/* This doesn't apparently work on most L4 machines,
 		 * but the specs say to do this to get automatic power
 		 * off.  Unfortunately, if it doesn't power off the
@@ -222,10 +218,8 @@ voyager_power_off(void)
 #if 0
 		int port;
 
-	  
 		/* enable the voyager Configuration Space */
-		outb((inb(VOYAGER_MC_SETUP) & 0xf0) | 0x8, 
-		     VOYAGER_MC_SETUP);
+		outb((inb(VOYAGER_MC_SETUP) & 0xf0) | 0x8, VOYAGER_MC_SETUP);
 		/* the port for the power off flag is an offset from the
 		   floating base */
 		port = (inb(VOYAGER_SSPB_RELOCATION_PORT) << 8) + 0x21;
@@ -235,62 +229,57 @@ voyager_power_off(void)
 	}
 	/* and wait for it to happen */
 	local_irq_disable();
-	for(;;)
+	for (;;)
 		halt();
 }
 
 /* copied from process.c */
-static inline void
-kb_wait(void)
+static inline void kb_wait(void)
 {
 	int i;
 
-	for (i=0; i<0x10000; i++)
+	for (i = 0; i < 0x10000; i++)
 		if ((inb_p(0x64) & 0x02) == 0)
 			break;
 }
 
-void
-machine_shutdown(void)
+void machine_shutdown(void)
 {
 	/* Architecture specific shutdown needed before a kexec */
 }
 
-void
-machine_restart(char *cmd)
+void machine_restart(char *cmd)
 {
 	printk("Voyager Warm Restart\n");
 	kb_wait();
 
-	if(voyager_level == 5) {
+	if (voyager_level == 5) {
 		/* write magic values to the RTC to inform system that
 		 * shutdown is beginning */
 		outb(0x8f, 0x70);
-		outb(0x5 , 0x71);
-		
+		outb(0x5, 0x71);
+
 		udelay(50);
-		outb(0xfe,0x64);         /* pull reset low */
-	} else if(voyager_level == 4) {
-		__u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT)<<8;
+		outb(0xfe, 0x64);	/* pull reset low */
+	} else if (voyager_level == 4) {
+		__u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT) << 8;
 		__u8 basebd = inb(VOYAGER_MC_SETUP);
-		
+
 		outb(basebd | 0x08, VOYAGER_MC_SETUP);
 		outb(0x02, catbase + 0x21);
 	}
 	local_irq_disable();
-	for(;;)
+	for (;;)
 		halt();
 }
 
-void
-machine_emergency_restart(void)
+void machine_emergency_restart(void)
 {
 	/*for now, just hook this to a warm restart */
 	machine_restart(NULL);
 }
 
-void
-mca_nmi_hook(void)
+void mca_nmi_hook(void)
 {
 	__u8 dumpval __maybe_unused = inb(0xf823);
 	__u8 swnmi __maybe_unused = inb(0xf813);
@@ -301,8 +290,8 @@ mca_nmi_hook(void)
 	/* clear swnmi */
 	outb(0xff, 0xf813);
 	/* tell SUS to ignore dump */
-	if(voyager_level == 5 && voyager_SUS != NULL) {
-		if(voyager_SUS->SUS_mbox == VOYAGER_DUMP_BUTTON_NMI) {
+	if (voyager_level == 5 && voyager_SUS != NULL) {
+		if (voyager_SUS->SUS_mbox == VOYAGER_DUMP_BUTTON_NMI) {
 			voyager_SUS->kernel_mbox = VOYAGER_NO_COMMAND;
 			voyager_SUS->kernel_flags |= VOYAGER_OS_IN_PROGRESS;
 			udelay(1000);
@@ -310,15 +299,14 @@ mca_nmi_hook(void)
 			voyager_SUS->kernel_flags &= ~VOYAGER_OS_IN_PROGRESS;
 		}
 	}
-	printk(KERN_ERR "VOYAGER: Dump switch pressed, printing CPU%d tracebacks\n", smp_processor_id());
+	printk(KERN_ERR
+	       "VOYAGER: Dump switch pressed, printing CPU%d tracebacks\n",
+	       smp_processor_id());
 	show_stack(NULL, NULL);
 	show_state();
 }
 
-
-
-void
-machine_halt(void)
+void machine_halt(void)
 {
 	/* treat a halt like a power off */
 	machine_power_off();
diff --git a/arch/x86/mach-voyager/voyager_cat.c b/arch/x86/mach-voyager/voyager_cat.c
index 2132ca652df1..17a7904f75b1 100644
--- a/arch/x86/mach-voyager/voyager_cat.c
+++ b/arch/x86/mach-voyager/voyager_cat.c
@@ -39,34 +39,32 @@
 #define CAT_DATA	(sspb + 0xd)
 
 /* the internal cat functions */
-static void cat_pack(__u8 *msg, __u16 start_bit, __u8 *data, 
-		     __u16 num_bits);
-static void cat_unpack(__u8 *msg, __u16 start_bit, __u8 *data,
+static void cat_pack(__u8 * msg, __u16 start_bit, __u8 * data, __u16 num_bits);
+static void cat_unpack(__u8 * msg, __u16 start_bit, __u8 * data,
 		       __u16 num_bits);
-static void cat_build_header(__u8 *header, const __u16 len, 
+static void cat_build_header(__u8 * header, const __u16 len,
 			     const __u16 smallest_reg_bits,
 			     const __u16 longest_reg_bits);
-static int cat_sendinst(voyager_module_t *modp, voyager_asic_t *asicp,
+static int cat_sendinst(voyager_module_t * modp, voyager_asic_t * asicp,
 			__u8 reg, __u8 op);
-static int cat_getdata(voyager_module_t *modp, voyager_asic_t *asicp,
-		       __u8 reg, __u8 *value);
-static int cat_shiftout(__u8 *data, __u16 data_bytes, __u16 header_bytes,
+static int cat_getdata(voyager_module_t * modp, voyager_asic_t * asicp,
+		       __u8 reg, __u8 * value);
+static int cat_shiftout(__u8 * data, __u16 data_bytes, __u16 header_bytes,
 			__u8 pad_bits);
-static int cat_write(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg,
+static int cat_write(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg,
 		     __u8 value);
-static int cat_read(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg,
-		    __u8 *value);
-static int cat_subread(voyager_module_t *modp, voyager_asic_t *asicp,
+static int cat_read(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg,
+		    __u8 * value);
+static int cat_subread(voyager_module_t * modp, voyager_asic_t * asicp,
 		       __u16 offset, __u16 len, void *buf);
-static int cat_senddata(voyager_module_t *modp, voyager_asic_t *asicp,
+static int cat_senddata(voyager_module_t * modp, voyager_asic_t * asicp,
 			__u8 reg, __u8 value);
-static int cat_disconnect(voyager_module_t *modp, voyager_asic_t *asicp);
-static int cat_connect(voyager_module_t *modp, voyager_asic_t *asicp);
+static int cat_disconnect(voyager_module_t * modp, voyager_asic_t * asicp);
+static int cat_connect(voyager_module_t * modp, voyager_asic_t * asicp);
 
-static inline const char *
-cat_module_name(int module_id)
+static inline const char *cat_module_name(int module_id)
 {
-	switch(module_id) {
+	switch (module_id) {
 	case 0x10:
 		return "Processor Slot 0";
 	case 0x11:
@@ -105,14 +103,14 @@ voyager_module_t *voyager_cat_list;
 
 /* the I/O port assignments for the VIC and QIC */
 static struct resource vic_res = {
-	.name	= "Voyager Interrupt Controller",
-	.start	= 0xFC00,
-	.end	= 0xFC6F
+	.name = "Voyager Interrupt Controller",
+	.start = 0xFC00,
+	.end = 0xFC6F
 };
 static struct resource qic_res = {
-	.name	= "Quad Interrupt Controller",
-	.start	= 0xFC70,
-	.end	= 0xFCFF
+	.name = "Quad Interrupt Controller",
+	.start = 0xFC70,
+	.end = 0xFCFF
 };
 
 /* This function is used to pack a data bit stream inside a message.
@@ -120,7 +118,7 @@ static struct resource qic_res = {
  * Note: This function assumes that any unused bit in the data stream
  * is set to zero so that the ors will work correctly */
 static void
-cat_pack(__u8 *msg, const __u16 start_bit, __u8 *data, const __u16 num_bits)
+cat_pack(__u8 * msg, const __u16 start_bit, __u8 * data, const __u16 num_bits)
 {
 	/* compute initial shift needed */
 	const __u16 offset = start_bit % BITS_PER_BYTE;
@@ -130,7 +128,7 @@ cat_pack(__u8 *msg, const __u16 start_bit, __u8 *data, const __u16 num_bits)
 	int i;
 
 	/* adjust if we have more than a byte of residue */
-	if(residue >= BITS_PER_BYTE) {
+	if (residue >= BITS_PER_BYTE) {
 		residue -= BITS_PER_BYTE;
 		len++;
 	}
@@ -138,24 +136,25 @@ cat_pack(__u8 *msg, const __u16 start_bit, __u8 *data, const __u16 num_bits)
 	/* clear out the bits.  We assume here that if len==0 then
 	 * residue >= offset.  This is always true for the catbus
 	 * operations */
-	msg[byte] &= 0xff << (BITS_PER_BYTE - offset); 
+	msg[byte] &= 0xff << (BITS_PER_BYTE - offset);
 	msg[byte++] |= data[0] >> offset;
-	if(len == 0)
+	if (len == 0)
 		return;
-	for(i = 1; i < len; i++)
-		msg[byte++] = (data[i-1] << (BITS_PER_BYTE - offset))
-			| (data[i] >> offset);
-	if(residue != 0) {
+	for (i = 1; i < len; i++)
+		msg[byte++] = (data[i - 1] << (BITS_PER_BYTE - offset))
+		    | (data[i] >> offset);
+	if (residue != 0) {
 		__u8 mask = 0xff >> residue;
-		__u8 last_byte = data[i-1] << (BITS_PER_BYTE - offset)
-			| (data[i] >> offset);
-		
+		__u8 last_byte = data[i - 1] << (BITS_PER_BYTE - offset)
+		    | (data[i] >> offset);
+
 		last_byte &= ~mask;
 		msg[byte] &= mask;
 		msg[byte] |= last_byte;
 	}
 	return;
 }
+
 /* unpack the data again (same arguments as cat_pack()). data buffer
  * must be zero populated.
  *
@@ -163,7 +162,7 @@ cat_pack(__u8 *msg, const __u16 start_bit, __u8 *data, const __u16 num_bits)
  * data (starting at bit 0 in data).
  */
 static void
-cat_unpack(__u8 *msg, const __u16 start_bit, __u8 *data, const __u16 num_bits)
+cat_unpack(__u8 * msg, const __u16 start_bit, __u8 * data, const __u16 num_bits)
 {
 	/* compute initial shift needed */
 	const __u16 offset = start_bit % BITS_PER_BYTE;
@@ -172,97 +171,97 @@ cat_unpack(__u8 *msg, const __u16 start_bit, __u8 *data, const __u16 num_bits)
 	__u16 byte = start_bit / BITS_PER_BYTE;
 	int i;
 
-	if(last_bits != 0)
+	if (last_bits != 0)
 		len++;
 
 	/* special case: want < 8 bits from msg and we can get it from
 	 * a single byte of the msg */
-	if(len == 0 && BITS_PER_BYTE - offset >= num_bits) {
+	if (len == 0 && BITS_PER_BYTE - offset >= num_bits) {
 		data[0] = msg[byte] << offset;
 		data[0] &= 0xff >> (BITS_PER_BYTE - num_bits);
 		return;
 	}
-	for(i = 0; i < len; i++) {
+	for (i = 0; i < len; i++) {
 		/* this annoying if has to be done just in case a read of
 		 * msg one beyond the array causes a panic */
-		if(offset != 0) {
+		if (offset != 0) {
 			data[i] = msg[byte++] << offset;
 			data[i] |= msg[byte] >> (BITS_PER_BYTE - offset);
-		}
-		else {
+		} else {
 			data[i] = msg[byte++];
 		}
 	}
 	/* do we need to truncate the final byte */
-	if(last_bits != 0) {
-		data[i-1] &= 0xff << (BITS_PER_BYTE - last_bits);
+	if (last_bits != 0) {
+		data[i - 1] &= 0xff << (BITS_PER_BYTE - last_bits);
 	}
 	return;
 }
 
 static void
-cat_build_header(__u8 *header, const __u16 len, const __u16 smallest_reg_bits,
+cat_build_header(__u8 * header, const __u16 len, const __u16 smallest_reg_bits,
 		 const __u16 longest_reg_bits)
 {
 	int i;
 	__u16 start_bit = (smallest_reg_bits - 1) % BITS_PER_BYTE;
 	__u8 *last_byte = &header[len - 1];
 
-	if(start_bit == 0)
+	if (start_bit == 0)
 		start_bit = 1;	/* must have at least one bit in the hdr */
-	
-	for(i=0; i < len; i++)
+
+	for (i = 0; i < len; i++)
 		header[i] = 0;
 
-	for(i = start_bit; i > 0; i--)
+	for (i = start_bit; i > 0; i--)
 		*last_byte = ((*last_byte) << 1) + 1;
 
 }
 
 static int
-cat_sendinst(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, __u8 op)
+cat_sendinst(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg, __u8 op)
 {
 	__u8 parity, inst, inst_buf[4] = { 0 };
 	__u8 iseq[VOYAGER_MAX_SCAN_PATH], hseq[VOYAGER_MAX_REG_SIZE];
 	__u16 ibytes, hbytes, padbits;
 	int i;
-	
+
 	/* 
 	 * Parity is the parity of the register number + 1 (READ_REGISTER
 	 * and WRITE_REGISTER always add '1' to the number of bits == 1)
 	 */
-	parity = (__u8)(1 + (reg & 0x01) +
-	         ((__u8)(reg & 0x02) >> 1) +
-	         ((__u8)(reg & 0x04) >> 2) +
-	         ((__u8)(reg & 0x08) >> 3)) % 2;
+	parity = (__u8) (1 + (reg & 0x01) +
+			 ((__u8) (reg & 0x02) >> 1) +
+			 ((__u8) (reg & 0x04) >> 2) +
+			 ((__u8) (reg & 0x08) >> 3)) % 2;
 
 	inst = ((parity << 7) | (reg << 2) | op);
 
 	outb(VOYAGER_CAT_IRCYC, CAT_CMD);
-	if(!modp->scan_path_connected) {
-		if(asicp->asic_id != VOYAGER_CAT_ID) {
-			printk("**WARNING***: cat_sendinst has disconnected scan path not to CAT asic\n");
+	if (!modp->scan_path_connected) {
+		if (asicp->asic_id != VOYAGER_CAT_ID) {
+			printk
+			    ("**WARNING***: cat_sendinst has disconnected scan path not to CAT asic\n");
 			return 1;
 		}
 		outb(VOYAGER_CAT_HEADER, CAT_DATA);
 		outb(inst, CAT_DATA);
-		if(inb(CAT_DATA) != VOYAGER_CAT_HEADER) {
+		if (inb(CAT_DATA) != VOYAGER_CAT_HEADER) {
 			CDEBUG(("VOYAGER CAT: cat_sendinst failed to get CAT_HEADER\n"));
 			return 1;
 		}
 		return 0;
 	}
 	ibytes = modp->inst_bits / BITS_PER_BYTE;
-	if((padbits = modp->inst_bits % BITS_PER_BYTE) != 0) {
+	if ((padbits = modp->inst_bits % BITS_PER_BYTE) != 0) {
 		padbits = BITS_PER_BYTE - padbits;
 		ibytes++;
 	}
 	hbytes = modp->largest_reg / BITS_PER_BYTE;
-	if(modp->largest_reg % BITS_PER_BYTE)
+	if (modp->largest_reg % BITS_PER_BYTE)
 		hbytes++;
 	CDEBUG(("cat_sendinst: ibytes=%d, hbytes=%d\n", ibytes, hbytes));
 	/* initialise the instruction sequence to 0xff */
-	for(i=0; i < ibytes + hbytes; i++)
+	for (i = 0; i < ibytes + hbytes; i++)
 		iseq[i] = 0xff;
 	cat_build_header(hseq, hbytes, modp->smallest_reg, modp->largest_reg);
 	cat_pack(iseq, modp->inst_bits, hseq, hbytes * BITS_PER_BYTE);
@@ -271,11 +270,11 @@ cat_sendinst(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, __u8 op)
 	cat_pack(iseq, asicp->bit_location, inst_buf, asicp->ireg_length);
 #ifdef VOYAGER_CAT_DEBUG
 	printk("ins = 0x%x, iseq: ", inst);
-	for(i=0; i< ibytes + hbytes; i++)
+	for (i = 0; i < ibytes + hbytes; i++)
 		printk("0x%x ", iseq[i]);
 	printk("\n");
 #endif
-	if(cat_shiftout(iseq, ibytes, hbytes, padbits)) {
+	if (cat_shiftout(iseq, ibytes, hbytes, padbits)) {
 		CDEBUG(("VOYAGER CAT: cat_sendinst: cat_shiftout failed\n"));
 		return 1;
 	}
@@ -284,72 +283,74 @@ cat_sendinst(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, __u8 op)
 }
 
 static int
-cat_getdata(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, 
-	    __u8 *value)
+cat_getdata(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg,
+	    __u8 * value)
 {
-	if(!modp->scan_path_connected) {
-		if(asicp->asic_id != VOYAGER_CAT_ID) {
+	if (!modp->scan_path_connected) {
+		if (asicp->asic_id != VOYAGER_CAT_ID) {
 			CDEBUG(("VOYAGER CAT: ERROR: cat_getdata to CAT asic with scan path connected\n"));
 			return 1;
 		}
-		if(reg > VOYAGER_SUBADDRHI) 
+		if (reg > VOYAGER_SUBADDRHI)
 			outb(VOYAGER_CAT_RUN, CAT_CMD);
 		outb(VOYAGER_CAT_DRCYC, CAT_CMD);
 		outb(VOYAGER_CAT_HEADER, CAT_DATA);
 		*value = inb(CAT_DATA);
 		outb(0xAA, CAT_DATA);
-		if(inb(CAT_DATA) != VOYAGER_CAT_HEADER) {
+		if (inb(CAT_DATA) != VOYAGER_CAT_HEADER) {
 			CDEBUG(("cat_getdata: failed to get VOYAGER_CAT_HEADER\n"));
 			return 1;
 		}
 		return 0;
-	}
-	else {
-		__u16 sbits = modp->num_asics -1 + asicp->ireg_length;
+	} else {
+		__u16 sbits = modp->num_asics - 1 + asicp->ireg_length;
 		__u16 sbytes = sbits / BITS_PER_BYTE;
 		__u16 tbytes;
-		__u8 string[VOYAGER_MAX_SCAN_PATH], trailer[VOYAGER_MAX_REG_SIZE];
+		__u8 string[VOYAGER_MAX_SCAN_PATH],
+		    trailer[VOYAGER_MAX_REG_SIZE];
 		__u8 padbits;
 		int i;
-		
+
 		outb(VOYAGER_CAT_DRCYC, CAT_CMD);
 
-		if((padbits = sbits % BITS_PER_BYTE) != 0) {
+		if ((padbits = sbits % BITS_PER_BYTE) != 0) {
 			padbits = BITS_PER_BYTE - padbits;
 			sbytes++;
 		}
 		tbytes = asicp->ireg_length / BITS_PER_BYTE;
-		if(asicp->ireg_length % BITS_PER_BYTE)
+		if (asicp->ireg_length % BITS_PER_BYTE)
 			tbytes++;
 		CDEBUG(("cat_getdata: tbytes = %d, sbytes = %d, padbits = %d\n",
-			tbytes,	sbytes, padbits));
+			tbytes, sbytes, padbits));
 		cat_build_header(trailer, tbytes, 1, asicp->ireg_length);
 
-		
-		for(i = tbytes - 1; i >= 0; i--) {
+		for (i = tbytes - 1; i >= 0; i--) {
 			outb(trailer[i], CAT_DATA);
 			string[sbytes + i] = inb(CAT_DATA);
 		}
 
-		for(i = sbytes - 1; i >= 0; i--) {
+		for (i = sbytes - 1; i >= 0; i--) {
 			outb(0xaa, CAT_DATA);
 			string[i] = inb(CAT_DATA);
 		}
 		*value = 0;
-		cat_unpack(string, padbits + (tbytes * BITS_PER_BYTE) + asicp->asic_location, value, asicp->ireg_length);
+		cat_unpack(string,
+			   padbits + (tbytes * BITS_PER_BYTE) +
+			   asicp->asic_location, value, asicp->ireg_length);
 #ifdef VOYAGER_CAT_DEBUG
 		printk("value=0x%x, string: ", *value);
-		for(i=0; i< tbytes+sbytes; i++)
+		for (i = 0; i < tbytes + sbytes; i++)
 			printk("0x%x ", string[i]);
 		printk("\n");
 #endif
-		
+
 		/* sanity check the rest of the return */
-		for(i=0; i < tbytes; i++) {
+		for (i = 0; i < tbytes; i++) {
 			__u8 input = 0;
 
-			cat_unpack(string, padbits + (i * BITS_PER_BYTE), &input, BITS_PER_BYTE);
-			if(trailer[i] != input) {
+			cat_unpack(string, padbits + (i * BITS_PER_BYTE),
+				   &input, BITS_PER_BYTE);
+			if (trailer[i] != input) {
 				CDEBUG(("cat_getdata: failed to sanity check rest of ret(%d) 0x%x != 0x%x\n", i, input, trailer[i]));
 				return 1;
 			}
@@ -360,14 +361,14 @@ cat_getdata(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg,
 }
 
 static int
-cat_shiftout(__u8 *data, __u16 data_bytes, __u16 header_bytes, __u8 pad_bits)
+cat_shiftout(__u8 * data, __u16 data_bytes, __u16 header_bytes, __u8 pad_bits)
 {
 	int i;
-	
-	for(i = data_bytes + header_bytes - 1; i >= header_bytes; i--)
+
+	for (i = data_bytes + header_bytes - 1; i >= header_bytes; i--)
 		outb(data[i], CAT_DATA);
 
-	for(i = header_bytes - 1; i >= 0; i--) {
+	for (i = header_bytes - 1; i >= 0; i--) {
 		__u8 header = 0;
 		__u8 input;
 
@@ -376,7 +377,7 @@ cat_shiftout(__u8 *data, __u16 data_bytes, __u16 header_bytes, __u8 pad_bits)
 		CDEBUG(("cat_shiftout: returned 0x%x\n", input));
 		cat_unpack(data, ((data_bytes + i) * BITS_PER_BYTE) - pad_bits,
 			   &header, BITS_PER_BYTE);
-		if(input != header) {
+		if (input != header) {
 			CDEBUG(("VOYAGER CAT: cat_shiftout failed to return header 0x%x != 0x%x\n", input, header));
 			return 1;
 		}
@@ -385,57 +386,57 @@ cat_shiftout(__u8 *data, __u16 data_bytes, __u16 header_bytes, __u8 pad_bits)
 }
 
 static int
-cat_senddata(voyager_module_t *modp, voyager_asic_t *asicp, 
+cat_senddata(voyager_module_t * modp, voyager_asic_t * asicp,
 	     __u8 reg, __u8 value)
 {
 	outb(VOYAGER_CAT_DRCYC, CAT_CMD);
-	if(!modp->scan_path_connected) {
-		if(asicp->asic_id != VOYAGER_CAT_ID) {
+	if (!modp->scan_path_connected) {
+		if (asicp->asic_id != VOYAGER_CAT_ID) {
 			CDEBUG(("VOYAGER CAT: ERROR: scan path disconnected when asic != CAT\n"));
 			return 1;
 		}
 		outb(VOYAGER_CAT_HEADER, CAT_DATA);
 		outb(value, CAT_DATA);
-		if(inb(CAT_DATA) != VOYAGER_CAT_HEADER) {
+		if (inb(CAT_DATA) != VOYAGER_CAT_HEADER) {
 			CDEBUG(("cat_senddata: failed to get correct header response to sent data\n"));
 			return 1;
 		}
-		if(reg > VOYAGER_SUBADDRHI) {
+		if (reg > VOYAGER_SUBADDRHI) {
 			outb(VOYAGER_CAT_RUN, CAT_CMD);
 			outb(VOYAGER_CAT_END, CAT_CMD);
 			outb(VOYAGER_CAT_RUN, CAT_CMD);
 		}
-		
+
 		return 0;
-	}
-	else {
+	} else {
 		__u16 hbytes = asicp->ireg_length / BITS_PER_BYTE;
-		__u16 dbytes = (modp->num_asics - 1 + asicp->ireg_length)/BITS_PER_BYTE;
-		__u8 padbits, dseq[VOYAGER_MAX_SCAN_PATH], 
-			hseq[VOYAGER_MAX_REG_SIZE];
+		__u16 dbytes =
+		    (modp->num_asics - 1 + asicp->ireg_length) / BITS_PER_BYTE;
+		__u8 padbits, dseq[VOYAGER_MAX_SCAN_PATH],
+		    hseq[VOYAGER_MAX_REG_SIZE];
 		int i;
 
-		if((padbits = (modp->num_asics - 1 
-			       + asicp->ireg_length) % BITS_PER_BYTE) != 0) {
+		if ((padbits = (modp->num_asics - 1
+				+ asicp->ireg_length) % BITS_PER_BYTE) != 0) {
 			padbits = BITS_PER_BYTE - padbits;
 			dbytes++;
 		}
-		if(asicp->ireg_length % BITS_PER_BYTE)
+		if (asicp->ireg_length % BITS_PER_BYTE)
 			hbytes++;
-		
+
 		cat_build_header(hseq, hbytes, 1, asicp->ireg_length);
-		
-		for(i = 0; i < dbytes + hbytes; i++)
+
+		for (i = 0; i < dbytes + hbytes; i++)
 			dseq[i] = 0xff;
 		CDEBUG(("cat_senddata: dbytes=%d, hbytes=%d, padbits=%d\n",
 			dbytes, hbytes, padbits));
 		cat_pack(dseq, modp->num_asics - 1 + asicp->ireg_length,
 			 hseq, hbytes * BITS_PER_BYTE);
-		cat_pack(dseq, asicp->asic_location, &value, 
+		cat_pack(dseq, asicp->asic_location, &value,
 			 asicp->ireg_length);
 #ifdef VOYAGER_CAT_DEBUG
 		printk("dseq ");
-		for(i=0; i<hbytes+dbytes; i++) {
+		for (i = 0; i < hbytes + dbytes; i++) {
 			printk("0x%x ", dseq[i]);
 		}
 		printk("\n");
@@ -445,121 +446,125 @@ cat_senddata(voyager_module_t *modp, voyager_asic_t *asicp,
 }
 
 static int
-cat_write(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg,
-	 __u8 value)
+cat_write(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg, __u8 value)
 {
-	if(cat_sendinst(modp, asicp, reg, VOYAGER_WRITE_CONFIG))
+	if (cat_sendinst(modp, asicp, reg, VOYAGER_WRITE_CONFIG))
 		return 1;
 	return cat_senddata(modp, asicp, reg, value);
 }
 
 static int
-cat_read(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg,
-	 __u8 *value)
+cat_read(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg,
+	 __u8 * value)
 {
-	if(cat_sendinst(modp, asicp, reg, VOYAGER_READ_CONFIG))
+	if (cat_sendinst(modp, asicp, reg, VOYAGER_READ_CONFIG))
 		return 1;
 	return cat_getdata(modp, asicp, reg, value);
 }
 
 static int
-cat_subaddrsetup(voyager_module_t *modp, voyager_asic_t *asicp, __u16 offset,
+cat_subaddrsetup(voyager_module_t * modp, voyager_asic_t * asicp, __u16 offset,
 		 __u16 len)
 {
 	__u8 val;
 
-	if(len > 1) {
+	if (len > 1) {
 		/* set auto increment */
 		__u8 newval;
-		
-		if(cat_read(modp, asicp, VOYAGER_AUTO_INC_REG, &val)) {
+
+		if (cat_read(modp, asicp, VOYAGER_AUTO_INC_REG, &val)) {
 			CDEBUG(("cat_subaddrsetup: read of VOYAGER_AUTO_INC_REG failed\n"));
 			return 1;
 		}
-		CDEBUG(("cat_subaddrsetup: VOYAGER_AUTO_INC_REG = 0x%x\n", val));
+		CDEBUG(("cat_subaddrsetup: VOYAGER_AUTO_INC_REG = 0x%x\n",
+			val));
 		newval = val | VOYAGER_AUTO_INC;
-		if(newval != val) {
-			if(cat_write(modp, asicp, VOYAGER_AUTO_INC_REG, val)) {
+		if (newval != val) {
+			if (cat_write(modp, asicp, VOYAGER_AUTO_INC_REG, val)) {
 				CDEBUG(("cat_subaddrsetup: write to VOYAGER_AUTO_INC_REG failed\n"));
 				return 1;
 			}
 		}
 	}
-	if(cat_write(modp, asicp, VOYAGER_SUBADDRLO, (__u8)(offset &0xff))) {
+	if (cat_write(modp, asicp, VOYAGER_SUBADDRLO, (__u8) (offset & 0xff))) {
 		CDEBUG(("cat_subaddrsetup: write to SUBADDRLO failed\n"));
 		return 1;
 	}
-	if(asicp->subaddr > VOYAGER_SUBADDR_LO) {
-		if(cat_write(modp, asicp, VOYAGER_SUBADDRHI, (__u8)(offset >> 8))) {
+	if (asicp->subaddr > VOYAGER_SUBADDR_LO) {
+		if (cat_write
+		    (modp, asicp, VOYAGER_SUBADDRHI, (__u8) (offset >> 8))) {
 			CDEBUG(("cat_subaddrsetup: write to SUBADDRHI failed\n"));
 			return 1;
 		}
 		cat_read(modp, asicp, VOYAGER_SUBADDRHI, &val);
-		CDEBUG(("cat_subaddrsetup: offset = %d, hi = %d\n", offset, val));
+		CDEBUG(("cat_subaddrsetup: offset = %d, hi = %d\n", offset,
+			val));
 	}
 	cat_read(modp, asicp, VOYAGER_SUBADDRLO, &val);
 	CDEBUG(("cat_subaddrsetup: offset = %d, lo = %d\n", offset, val));
 	return 0;
 }
-		
+
 static int
-cat_subwrite(voyager_module_t *modp, voyager_asic_t *asicp, __u16 offset,
-	    __u16 len, void *buf)
+cat_subwrite(voyager_module_t * modp, voyager_asic_t * asicp, __u16 offset,
+	     __u16 len, void *buf)
 {
 	int i, retval;
 
 	/* FIXME: need special actions for VOYAGER_CAT_ID here */
-	if(asicp->asic_id == VOYAGER_CAT_ID) {
+	if (asicp->asic_id == VOYAGER_CAT_ID) {
 		CDEBUG(("cat_subwrite: ATTEMPT TO WRITE TO CAT ASIC\n"));
 		/* FIXME -- This is supposed to be handled better
 		 * There is a problem writing to the cat asic in the
 		 * PSI.  The 30us delay seems to work, though */
 		udelay(30);
 	}
-		
-	if((retval = cat_subaddrsetup(modp, asicp, offset, len)) != 0) {
+
+	if ((retval = cat_subaddrsetup(modp, asicp, offset, len)) != 0) {
 		printk("cat_subwrite: cat_subaddrsetup FAILED\n");
 		return retval;
 	}
-	
-	if(cat_sendinst(modp, asicp, VOYAGER_SUBADDRDATA, VOYAGER_WRITE_CONFIG)) {
+
+	if (cat_sendinst
+	    (modp, asicp, VOYAGER_SUBADDRDATA, VOYAGER_WRITE_CONFIG)) {
 		printk("cat_subwrite: cat_sendinst FAILED\n");
 		return 1;
 	}
-	for(i = 0; i < len; i++) {
-		if(cat_senddata(modp, asicp, 0xFF, ((__u8 *)buf)[i])) {
-			printk("cat_subwrite: cat_sendata element at %d FAILED\n", i);
+	for (i = 0; i < len; i++) {
+		if (cat_senddata(modp, asicp, 0xFF, ((__u8 *) buf)[i])) {
+			printk
+			    ("cat_subwrite: cat_sendata element at %d FAILED\n",
+			     i);
 			return 1;
 		}
 	}
 	return 0;
 }
 static int
-cat_subread(voyager_module_t *modp, voyager_asic_t *asicp, __u16 offset,
+cat_subread(voyager_module_t * modp, voyager_asic_t * asicp, __u16 offset,
 	    __u16 len, void *buf)
 {
 	int i, retval;
 
-	if((retval = cat_subaddrsetup(modp, asicp, offset, len)) != 0) {
+	if ((retval = cat_subaddrsetup(modp, asicp, offset, len)) != 0) {
 		CDEBUG(("cat_subread: cat_subaddrsetup FAILED\n"));
 		return retval;
 	}
 
-	if(cat_sendinst(modp, asicp, VOYAGER_SUBADDRDATA, VOYAGER_READ_CONFIG)) {
+	if (cat_sendinst(modp, asicp, VOYAGER_SUBADDRDATA, VOYAGER_READ_CONFIG)) {
 		CDEBUG(("cat_subread: cat_sendinst failed\n"));
 		return 1;
 	}
-	for(i = 0; i < len; i++) {
-		if(cat_getdata(modp, asicp, 0xFF,
-			       &((__u8 *)buf)[i])) {
-			CDEBUG(("cat_subread: cat_getdata element %d failed\n", i));
+	for (i = 0; i < len; i++) {
+		if (cat_getdata(modp, asicp, 0xFF, &((__u8 *) buf)[i])) {
+			CDEBUG(("cat_subread: cat_getdata element %d failed\n",
+				i));
 			return 1;
 		}
 	}
 	return 0;
 }
 
-
 /* buffer for storing EPROM data read in during initialisation */
 static __initdata __u8 eprom_buf[0xFFFF];
 static voyager_module_t *voyager_initial_module;
@@ -568,8 +573,7 @@ static voyager_module_t *voyager_initial_module;
  * boot cpu *after* all memory initialisation has been done (so we can
  * use kmalloc) but before smp initialisation, so we can probe the SMP
  * configuration and pick up necessary information.  */
-void __init
-voyager_cat_init(void)
+void __init voyager_cat_init(void)
 {
 	voyager_module_t **modpp = &voyager_initial_module;
 	voyager_asic_t **asicpp;
@@ -578,27 +582,29 @@ voyager_cat_init(void)
 	unsigned long qic_addr = 0;
 	__u8 qabc_data[0x20];
 	__u8 num_submodules, val;
-	voyager_eprom_hdr_t *eprom_hdr = (voyager_eprom_hdr_t *)&eprom_buf[0];
-	
+	voyager_eprom_hdr_t *eprom_hdr = (voyager_eprom_hdr_t *) & eprom_buf[0];
+
 	__u8 cmos[4];
 	unsigned long addr;
-	
+
 	/* initiallise the SUS mailbox */
-	for(i=0; i<sizeof(cmos); i++)
+	for (i = 0; i < sizeof(cmos); i++)
 		cmos[i] = voyager_extended_cmos_read(VOYAGER_DUMP_LOCATION + i);
 	addr = *(unsigned long *)cmos;
-	if((addr & 0xff000000) != 0xff000000) {
-		printk(KERN_ERR "Voyager failed to get SUS mailbox (addr = 0x%lx\n", addr);
+	if ((addr & 0xff000000) != 0xff000000) {
+		printk(KERN_ERR
+		       "Voyager failed to get SUS mailbox (addr = 0x%lx\n",
+		       addr);
 	} else {
 		static struct resource res;
-		
+
 		res.name = "voyager SUS";
 		res.start = addr;
-		res.end = addr+0x3ff;
-		
+		res.end = addr + 0x3ff;
+
 		request_resource(&iomem_resource, &res);
 		voyager_SUS = (struct voyager_SUS *)
-			ioremap(addr, 0x400);
+		    ioremap(addr, 0x400);
 		printk(KERN_NOTICE "Voyager SUS mailbox version 0x%x\n",
 		       voyager_SUS->SUS_version);
 		voyager_SUS->kernel_version = VOYAGER_MAILBOX_VERSION;
@@ -609,8 +615,6 @@ voyager_cat_init(void)
 	voyager_extended_vic_processors = 0;
 	voyager_quad_processors = 0;
 
-
-
 	printk("VOYAGER: beginning CAT bus probe\n");
 	/* set up the SuperSet Port Block which tells us where the
 	 * CAT communication port is */
@@ -618,14 +622,14 @@ voyager_cat_init(void)
 	VDEBUG(("VOYAGER DEBUG: sspb = 0x%x\n", sspb));
 
 	/* now find out if were 8 slot or normal */
-	if((inb(VIC_PROC_WHO_AM_I) & EIGHT_SLOT_IDENTIFIER)
-	   == EIGHT_SLOT_IDENTIFIER) {
+	if ((inb(VIC_PROC_WHO_AM_I) & EIGHT_SLOT_IDENTIFIER)
+	    == EIGHT_SLOT_IDENTIFIER) {
 		voyager_8slot = 1;
-		printk(KERN_NOTICE "Voyager: Eight slot 51xx configuration detected\n");
+		printk(KERN_NOTICE
+		       "Voyager: Eight slot 51xx configuration detected\n");
 	}
 
-	for(i = VOYAGER_MIN_MODULE;
-	    i <= VOYAGER_MAX_MODULE; i++) {
+	for (i = VOYAGER_MIN_MODULE; i <= VOYAGER_MAX_MODULE; i++) {
 		__u8 input;
 		int asic;
 		__u16 eprom_size;
@@ -643,21 +647,21 @@ voyager_cat_init(void)
 		outb(0xAA, CAT_DATA);
 		input = inb(CAT_DATA);
 		outb(VOYAGER_CAT_END, CAT_CMD);
-		if(input != VOYAGER_CAT_HEADER) {
+		if (input != VOYAGER_CAT_HEADER) {
 			continue;
 		}
 		CDEBUG(("VOYAGER DEBUG: found module id 0x%x, %s\n", i,
 			cat_module_name(i)));
-		*modpp = kmalloc(sizeof(voyager_module_t), GFP_KERNEL); /*&voyager_module_storage[cat_count++];*/
-		if(*modpp == NULL) {
+		*modpp = kmalloc(sizeof(voyager_module_t), GFP_KERNEL);	/*&voyager_module_storage[cat_count++]; */
+		if (*modpp == NULL) {
 			printk("**WARNING** kmalloc failure in cat_init\n");
 			continue;
 		}
 		memset(*modpp, 0, sizeof(voyager_module_t));
 		/* need temporary asic for cat_subread.  It will be
 		 * filled in correctly later */
-		(*modpp)->asic = kmalloc(sizeof(voyager_asic_t), GFP_KERNEL); /*&voyager_asic_storage[asic_count];*/
-		if((*modpp)->asic == NULL) {
+		(*modpp)->asic = kmalloc(sizeof(voyager_asic_t), GFP_KERNEL);	/*&voyager_asic_storage[asic_count]; */
+		if ((*modpp)->asic == NULL) {
 			printk("**WARNING** kmalloc failure in cat_init\n");
 			continue;
 		}
@@ -666,47 +670,52 @@ voyager_cat_init(void)
 		(*modpp)->asic->subaddr = VOYAGER_SUBADDR_HI;
 		(*modpp)->module_addr = i;
 		(*modpp)->scan_path_connected = 0;
-		if(i == VOYAGER_PSI) {
+		if (i == VOYAGER_PSI) {
 			/* Exception leg for modules with no EEPROM */
 			printk("Module \"%s\"\n", cat_module_name(i));
 			continue;
 		}
-			       
+
 		CDEBUG(("cat_init: Reading eeprom for module 0x%x at offset %d\n", i, VOYAGER_XSUM_END_OFFSET));
 		outb(VOYAGER_CAT_RUN, CAT_CMD);
 		cat_disconnect(*modpp, (*modpp)->asic);
-		if(cat_subread(*modpp, (*modpp)->asic,
-			       VOYAGER_XSUM_END_OFFSET, sizeof(eprom_size),
-			       &eprom_size)) {
-			printk("**WARNING**: Voyager couldn't read EPROM size for module 0x%x\n", i);
+		if (cat_subread(*modpp, (*modpp)->asic,
+				VOYAGER_XSUM_END_OFFSET, sizeof(eprom_size),
+				&eprom_size)) {
+			printk
+			    ("**WARNING**: Voyager couldn't read EPROM size for module 0x%x\n",
+			     i);
 			outb(VOYAGER_CAT_END, CAT_CMD);
 			continue;
 		}
-		if(eprom_size > sizeof(eprom_buf)) {
-			printk("**WARNING**: Voyager insufficient size to read EPROM data, module 0x%x.  Need %d\n", i, eprom_size);
+		if (eprom_size > sizeof(eprom_buf)) {
+			printk
+			    ("**WARNING**: Voyager insufficient size to read EPROM data, module 0x%x.  Need %d\n",
+			     i, eprom_size);
 			outb(VOYAGER_CAT_END, CAT_CMD);
 			continue;
 		}
 		outb(VOYAGER_CAT_END, CAT_CMD);
 		outb(VOYAGER_CAT_RUN, CAT_CMD);
-		CDEBUG(("cat_init: module 0x%x, eeprom_size %d\n", i, eprom_size));
-		if(cat_subread(*modpp, (*modpp)->asic, 0, 
-			       eprom_size, eprom_buf)) {
+		CDEBUG(("cat_init: module 0x%x, eeprom_size %d\n", i,
+			eprom_size));
+		if (cat_subread
+		    (*modpp, (*modpp)->asic, 0, eprom_size, eprom_buf)) {
 			outb(VOYAGER_CAT_END, CAT_CMD);
 			continue;
 		}
 		outb(VOYAGER_CAT_END, CAT_CMD);
 		printk("Module \"%s\", version 0x%x, tracer 0x%x, asics %d\n",
 		       cat_module_name(i), eprom_hdr->version_id,
-		       *((__u32 *)eprom_hdr->tracer),  eprom_hdr->num_asics);
+		       *((__u32 *) eprom_hdr->tracer), eprom_hdr->num_asics);
 		(*modpp)->ee_size = eprom_hdr->ee_size;
 		(*modpp)->num_asics = eprom_hdr->num_asics;
 		asicpp = &((*modpp)->asic);
 		sp_offset = eprom_hdr->scan_path_offset;
 		/* All we really care about are the Quad cards.  We
-                 * identify them because they are in a processor slot
-                 * and have only four asics */
-		if((i < 0x10 || (i>=0x14 && i < 0x1c) || i>0x1f)) {
+		 * identify them because they are in a processor slot
+		 * and have only four asics */
+		if ((i < 0x10 || (i >= 0x14 && i < 0x1c) || i > 0x1f)) {
 			modpp = &((*modpp)->next);
 			continue;
 		}
@@ -717,16 +726,17 @@ voyager_cat_init(void)
 			 &num_submodules);
 		/* lowest two bits, active low */
 		num_submodules = ~(0xfc | num_submodules);
-		CDEBUG(("VOYAGER CAT: %d submodules present\n", num_submodules));
-		if(num_submodules == 0) {
+		CDEBUG(("VOYAGER CAT: %d submodules present\n",
+			num_submodules));
+		if (num_submodules == 0) {
 			/* fill in the dyadic extended processors */
 			__u8 cpu = i & 0x07;
 
 			printk("Module \"%s\": Dyadic Processor Card\n",
 			       cat_module_name(i));
-			voyager_extended_vic_processors |= (1<<cpu);
+			voyager_extended_vic_processors |= (1 << cpu);
 			cpu += 4;
-			voyager_extended_vic_processors |= (1<<cpu);
+			voyager_extended_vic_processors |= (1 << cpu);
 			outb(VOYAGER_CAT_END, CAT_CMD);
 			continue;
 		}
@@ -740,28 +750,32 @@ voyager_cat_init(void)
 		cat_write(*modpp, (*modpp)->asic, VOYAGER_SUBMODSELECT, val);
 
 		outb(VOYAGER_CAT_END, CAT_CMD);
-			 
 
 		CDEBUG(("cat_init: Reading eeprom for module 0x%x at offset %d\n", i, VOYAGER_XSUM_END_OFFSET));
 		outb(VOYAGER_CAT_RUN, CAT_CMD);
 		cat_disconnect(*modpp, (*modpp)->asic);
-		if(cat_subread(*modpp, (*modpp)->asic,
-			       VOYAGER_XSUM_END_OFFSET, sizeof(eprom_size),
-			       &eprom_size)) {
-			printk("**WARNING**: Voyager couldn't read EPROM size for module 0x%x\n", i);
+		if (cat_subread(*modpp, (*modpp)->asic,
+				VOYAGER_XSUM_END_OFFSET, sizeof(eprom_size),
+				&eprom_size)) {
+			printk
+			    ("**WARNING**: Voyager couldn't read EPROM size for module 0x%x\n",
+			     i);
 			outb(VOYAGER_CAT_END, CAT_CMD);
 			continue;
 		}
-		if(eprom_size > sizeof(eprom_buf)) {
-			printk("**WARNING**: Voyager insufficient size to read EPROM data, module 0x%x.  Need %d\n", i, eprom_size);
+		if (eprom_size > sizeof(eprom_buf)) {
+			printk
+			    ("**WARNING**: Voyager insufficient size to read EPROM data, module 0x%x.  Need %d\n",
+			     i, eprom_size);
 			outb(VOYAGER_CAT_END, CAT_CMD);
 			continue;
 		}
 		outb(VOYAGER_CAT_END, CAT_CMD);
 		outb(VOYAGER_CAT_RUN, CAT_CMD);
-		CDEBUG(("cat_init: module 0x%x, eeprom_size %d\n", i, eprom_size));
-		if(cat_subread(*modpp, (*modpp)->asic, 0, 
-			       eprom_size, eprom_buf)) {
+		CDEBUG(("cat_init: module 0x%x, eeprom_size %d\n", i,
+			eprom_size));
+		if (cat_subread
+		    (*modpp, (*modpp)->asic, 0, eprom_size, eprom_buf)) {
 			outb(VOYAGER_CAT_END, CAT_CMD);
 			continue;
 		}
@@ -773,30 +787,35 @@ voyager_cat_init(void)
 		sp_offset = eprom_hdr->scan_path_offset;
 		/* get rid of the dummy CAT asic and read the real one */
 		kfree((*modpp)->asic);
-		for(asic=0; asic < (*modpp)->num_asics; asic++) {
+		for (asic = 0; asic < (*modpp)->num_asics; asic++) {
 			int j;
-			voyager_asic_t *asicp = *asicpp 
-				= kzalloc(sizeof(voyager_asic_t), GFP_KERNEL); /*&voyager_asic_storage[asic_count++];*/
+			voyager_asic_t *asicp = *asicpp = kzalloc(sizeof(voyager_asic_t), GFP_KERNEL);	/*&voyager_asic_storage[asic_count++]; */
 			voyager_sp_table_t *sp_table;
 			voyager_at_t *asic_table;
 			voyager_jtt_t *jtag_table;
 
-			if(asicp == NULL) {
-				printk("**WARNING** kmalloc failure in cat_init\n");
+			if (asicp == NULL) {
+				printk
+				    ("**WARNING** kmalloc failure in cat_init\n");
 				continue;
 			}
 			asicpp = &(asicp->next);
 			asicp->asic_location = asic;
-			sp_table = (voyager_sp_table_t *)(eprom_buf + sp_offset);
+			sp_table =
+			    (voyager_sp_table_t *) (eprom_buf + sp_offset);
 			asicp->asic_id = sp_table->asic_id;
-			asic_table = (voyager_at_t *)(eprom_buf + sp_table->asic_data_offset);
-			for(j=0; j<4; j++)
+			asic_table =
+			    (voyager_at_t *) (eprom_buf +
+					      sp_table->asic_data_offset);
+			for (j = 0; j < 4; j++)
 				asicp->jtag_id[j] = asic_table->jtag_id[j];
-			jtag_table = (voyager_jtt_t *)(eprom_buf + asic_table->jtag_offset);
+			jtag_table =
+			    (voyager_jtt_t *) (eprom_buf +
+					       asic_table->jtag_offset);
 			asicp->ireg_length = jtag_table->ireg_len;
 			asicp->bit_location = (*modpp)->inst_bits;
 			(*modpp)->inst_bits += asicp->ireg_length;
-			if(asicp->ireg_length > (*modpp)->largest_reg)
+			if (asicp->ireg_length > (*modpp)->largest_reg)
 				(*modpp)->largest_reg = asicp->ireg_length;
 			if (asicp->ireg_length < (*modpp)->smallest_reg ||
 			    (*modpp)->smallest_reg == 0)
@@ -804,15 +823,13 @@ voyager_cat_init(void)
 			CDEBUG(("asic 0x%x, ireg_length=%d, bit_location=%d\n",
 				asicp->asic_id, asicp->ireg_length,
 				asicp->bit_location));
-			if(asicp->asic_id == VOYAGER_QUAD_QABC) {
+			if (asicp->asic_id == VOYAGER_QUAD_QABC) {
 				CDEBUG(("VOYAGER CAT: QABC ASIC found\n"));
 				qabc_asic = asicp;
 			}
 			sp_offset += sizeof(voyager_sp_table_t);
 		}
-		CDEBUG(("Module inst_bits = %d, largest_reg = %d, smallest_reg=%d\n",
-			(*modpp)->inst_bits, (*modpp)->largest_reg,
-			(*modpp)->smallest_reg));
+		CDEBUG(("Module inst_bits = %d, largest_reg = %d, smallest_reg=%d\n", (*modpp)->inst_bits, (*modpp)->largest_reg, (*modpp)->smallest_reg));
 		/* OK, now we have the QUAD ASICs set up, use them.
 		 * we need to:
 		 *
@@ -828,10 +845,11 @@ voyager_cat_init(void)
 		qic_addr = qabc_data[5] << 8;
 		qic_addr = (qic_addr | qabc_data[6]) << 8;
 		qic_addr = (qic_addr | qabc_data[7]) << 8;
-		printk("Module \"%s\": Quad Processor Card; CPI 0x%lx, SET=0x%x\n",
-		       cat_module_name(i), qic_addr, qabc_data[8]);
+		printk
+		    ("Module \"%s\": Quad Processor Card; CPI 0x%lx, SET=0x%x\n",
+		     cat_module_name(i), qic_addr, qabc_data[8]);
 #if 0				/* plumbing fails---FIXME */
-		if((qabc_data[8] & 0xf0) == 0) {
+		if ((qabc_data[8] & 0xf0) == 0) {
 			/* FIXME: 32 way 8 CPU slot monster cannot be
 			 * plumbed this way---need to check for it */
 
@@ -842,94 +860,97 @@ voyager_cat_init(void)
 #ifdef VOYAGER_CAT_DEBUG
 			/* verify plumbing */
 			cat_subread(*modpp, qabc_asic, 8, 1, &qabc_data[8]);
-			if((qabc_data[8] & 0xf0) == 0) {
-				CDEBUG(("PLUMBING FAILED: 0x%x\n", qabc_data[8]));
+			if ((qabc_data[8] & 0xf0) == 0) {
+				CDEBUG(("PLUMBING FAILED: 0x%x\n",
+					qabc_data[8]));
 			}
 #endif
 		}
 #endif
 
 		{
-			struct resource *res = kzalloc(sizeof(struct resource),GFP_KERNEL);
+			struct resource *res =
+			    kzalloc(sizeof(struct resource), GFP_KERNEL);
 			res->name = kmalloc(128, GFP_KERNEL);
-			sprintf((char *)res->name, "Voyager %s Quad CPI", cat_module_name(i));
+			sprintf((char *)res->name, "Voyager %s Quad CPI",
+				cat_module_name(i));
 			res->start = qic_addr;
 			res->end = qic_addr + 0x3ff;
 			request_resource(&iomem_resource, res);
 		}
 
 		qic_addr = (unsigned long)ioremap(qic_addr, 0x400);
-				
-		for(j = 0; j < 4; j++) {
+
+		for (j = 0; j < 4; j++) {
 			__u8 cpu;
 
-			if(voyager_8slot) {
+			if (voyager_8slot) {
 				/* 8 slot has a different mapping,
 				 * each slot has only one vic line, so
 				 * 1 cpu in each slot must be < 8 */
-				cpu = (i & 0x07) + j*8;
+				cpu = (i & 0x07) + j * 8;
 			} else {
-				cpu = (i & 0x03) + j*4;
+				cpu = (i & 0x03) + j * 4;
 			}
-			if( (qabc_data[8] & (1<<j))) {
-				voyager_extended_vic_processors |= (1<<cpu);
+			if ((qabc_data[8] & (1 << j))) {
+				voyager_extended_vic_processors |= (1 << cpu);
 			}
-			if(qabc_data[8] & (1<<(j+4)) ) {
+			if (qabc_data[8] & (1 << (j + 4))) {
 				/* Second SET register plumbed: Quad
 				 * card has two VIC connected CPUs.
 				 * Secondary cannot be booted as a VIC
 				 * CPU */
-				voyager_extended_vic_processors |= (1<<cpu);
-				voyager_allowed_boot_processors &= (~(1<<cpu));
+				voyager_extended_vic_processors |= (1 << cpu);
+				voyager_allowed_boot_processors &=
+				    (~(1 << cpu));
 			}
 
-			voyager_quad_processors |= (1<<cpu);
+			voyager_quad_processors |= (1 << cpu);
 			voyager_quad_cpi_addr[cpu] = (struct voyager_qic_cpi *)
-				(qic_addr+(j<<8));
+			    (qic_addr + (j << 8));
 			CDEBUG(("CPU%d: CPI address 0x%lx\n", cpu,
 				(unsigned long)voyager_quad_cpi_addr[cpu]));
 		}
 		outb(VOYAGER_CAT_END, CAT_CMD);
 
-		
-		
 		*asicpp = NULL;
 		modpp = &((*modpp)->next);
 	}
 	*modpp = NULL;
-	printk("CAT Bus Initialisation finished: extended procs 0x%x, quad procs 0x%x, allowed vic boot = 0x%x\n", voyager_extended_vic_processors, voyager_quad_processors, voyager_allowed_boot_processors);
+	printk
+	    ("CAT Bus Initialisation finished: extended procs 0x%x, quad procs 0x%x, allowed vic boot = 0x%x\n",
+	     voyager_extended_vic_processors, voyager_quad_processors,
+	     voyager_allowed_boot_processors);
 	request_resource(&ioport_resource, &vic_res);
-	if(voyager_quad_processors)
+	if (voyager_quad_processors)
 		request_resource(&ioport_resource, &qic_res);
 	/* set up the front power switch */
 }
 
-int
-voyager_cat_readb(__u8 module, __u8 asic, int reg)
+int voyager_cat_readb(__u8 module, __u8 asic, int reg)
 {
 	return 0;
 }
 
-static int
-cat_disconnect(voyager_module_t *modp, voyager_asic_t *asicp) 
+static int cat_disconnect(voyager_module_t * modp, voyager_asic_t * asicp)
 {
 	__u8 val;
 	int err = 0;
 
-	if(!modp->scan_path_connected)
+	if (!modp->scan_path_connected)
 		return 0;
-	if(asicp->asic_id != VOYAGER_CAT_ID) {
+	if (asicp->asic_id != VOYAGER_CAT_ID) {
 		CDEBUG(("cat_disconnect: ASIC is not CAT\n"));
 		return 1;
 	}
 	err = cat_read(modp, asicp, VOYAGER_SCANPATH, &val);
-	if(err) {
+	if (err) {
 		CDEBUG(("cat_disconnect: failed to read SCANPATH\n"));
 		return err;
 	}
 	val &= VOYAGER_DISCONNECT_ASIC;
 	err = cat_write(modp, asicp, VOYAGER_SCANPATH, val);
-	if(err) {
+	if (err) {
 		CDEBUG(("cat_disconnect: failed to write SCANPATH\n"));
 		return err;
 	}
@@ -940,27 +961,26 @@ cat_disconnect(voyager_module_t *modp, voyager_asic_t *asicp)
 	return 0;
 }
 
-static int
-cat_connect(voyager_module_t *modp, voyager_asic_t *asicp) 
+static int cat_connect(voyager_module_t * modp, voyager_asic_t * asicp)
 {
 	__u8 val;
 	int err = 0;
 
-	if(modp->scan_path_connected)
+	if (modp->scan_path_connected)
 		return 0;
-	if(asicp->asic_id != VOYAGER_CAT_ID) {
+	if (asicp->asic_id != VOYAGER_CAT_ID) {
 		CDEBUG(("cat_connect: ASIC is not CAT\n"));
 		return 1;
 	}
 
 	err = cat_read(modp, asicp, VOYAGER_SCANPATH, &val);
-	if(err) {
+	if (err) {
 		CDEBUG(("cat_connect: failed to read SCANPATH\n"));
 		return err;
 	}
 	val |= VOYAGER_CONNECT_ASIC;
 	err = cat_write(modp, asicp, VOYAGER_SCANPATH, val);
-	if(err) {
+	if (err) {
 		CDEBUG(("cat_connect: failed to write SCANPATH\n"));
 		return err;
 	}
@@ -971,11 +991,10 @@ cat_connect(voyager_module_t *modp, voyager_asic_t *asicp)
 	return 0;
 }
 
-void
-voyager_cat_power_off(void)
+void voyager_cat_power_off(void)
 {
 	/* Power the machine off by writing to the PSI over the CAT
-         * bus */
+	 * bus */
 	__u8 data;
 	voyager_module_t psi = { 0 };
 	voyager_asic_t psi_asic = { 0 };
@@ -1009,8 +1028,7 @@ voyager_cat_power_off(void)
 
 struct voyager_status voyager_status = { 0 };
 
-void
-voyager_cat_psi(__u8 cmd, __u16 reg, __u8 *data)
+void voyager_cat_psi(__u8 cmd, __u16 reg, __u8 * data)
 {
 	voyager_module_t psi = { 0 };
 	voyager_asic_t psi_asic = { 0 };
@@ -1027,7 +1045,7 @@ voyager_cat_psi(__u8 cmd, __u16 reg, __u8 *data)
 	outb(VOYAGER_PSI, VOYAGER_CAT_CONFIG_PORT);
 	outb(VOYAGER_CAT_RUN, CAT_CMD);
 	cat_disconnect(&psi, &psi_asic);
-	switch(cmd) {
+	switch (cmd) {
 	case VOYAGER_PSI_READ:
 		cat_read(&psi, &psi_asic, reg, data);
 		break;
@@ -1047,8 +1065,7 @@ voyager_cat_psi(__u8 cmd, __u16 reg, __u8 *data)
 	outb(VOYAGER_CAT_END, CAT_CMD);
 }
 
-void
-voyager_cat_do_common_interrupt(void)
+void voyager_cat_do_common_interrupt(void)
 {
 	/* This is caused either by a memory parity error or something
 	 * in the PSI */
@@ -1057,7 +1074,7 @@ voyager_cat_do_common_interrupt(void)
 	voyager_asic_t psi_asic = { 0 };
 	struct voyager_psi psi_reg;
 	int i;
- re_read:
+      re_read:
 	psi.asic = &psi_asic;
 	psi.asic->asic_id = VOYAGER_CAT_ID;
 	psi.asic->subaddr = VOYAGER_SUBADDR_HI;
@@ -1072,43 +1089,45 @@ voyager_cat_do_common_interrupt(void)
 	cat_disconnect(&psi, &psi_asic);
 	/* Read the status.  NOTE: Need to read *all* the PSI regs here
 	 * otherwise the cmn int will be reasserted */
-	for(i = 0; i < sizeof(psi_reg.regs); i++) {
-		cat_read(&psi, &psi_asic, i, &((__u8 *)&psi_reg.regs)[i]);
+	for (i = 0; i < sizeof(psi_reg.regs); i++) {
+		cat_read(&psi, &psi_asic, i, &((__u8 *) & psi_reg.regs)[i]);
 	}
 	outb(VOYAGER_CAT_END, CAT_CMD);
-	if((psi_reg.regs.checkbit & 0x02) == 0) {
+	if ((psi_reg.regs.checkbit & 0x02) == 0) {
 		psi_reg.regs.checkbit |= 0x02;
 		cat_write(&psi, &psi_asic, 5, psi_reg.regs.checkbit);
 		printk("VOYAGER RE-READ PSI\n");
 		goto re_read;
 	}
 	outb(VOYAGER_CAT_RUN, CAT_CMD);
-	for(i = 0; i < sizeof(psi_reg.subregs); i++) {
+	for (i = 0; i < sizeof(psi_reg.subregs); i++) {
 		/* This looks strange, but the PSI doesn't do auto increment
 		 * correctly */
-		cat_subread(&psi, &psi_asic, VOYAGER_PSI_SUPPLY_REG + i, 
-			    1, &((__u8 *)&psi_reg.subregs)[i]); 
+		cat_subread(&psi, &psi_asic, VOYAGER_PSI_SUPPLY_REG + i,
+			    1, &((__u8 *) & psi_reg.subregs)[i]);
 	}
 	outb(VOYAGER_CAT_END, CAT_CMD);
 #ifdef VOYAGER_CAT_DEBUG
 	printk("VOYAGER PSI: ");
-	for(i=0; i<sizeof(psi_reg.regs); i++)
-		printk("%02x ", ((__u8 *)&psi_reg.regs)[i]);
+	for (i = 0; i < sizeof(psi_reg.regs); i++)
+		printk("%02x ", ((__u8 *) & psi_reg.regs)[i]);
 	printk("\n           ");
-	for(i=0; i<sizeof(psi_reg.subregs); i++)
-		printk("%02x ", ((__u8 *)&psi_reg.subregs)[i]);
+	for (i = 0; i < sizeof(psi_reg.subregs); i++)
+		printk("%02x ", ((__u8 *) & psi_reg.subregs)[i]);
 	printk("\n");
 #endif
-	if(psi_reg.regs.intstatus & PSI_MON) {
+	if (psi_reg.regs.intstatus & PSI_MON) {
 		/* switch off or power fail */
 
-		if(psi_reg.subregs.supply & PSI_SWITCH_OFF) {
-			if(voyager_status.switch_off) {
-				printk(KERN_ERR "Voyager front panel switch turned off again---Immediate power off!\n");
+		if (psi_reg.subregs.supply & PSI_SWITCH_OFF) {
+			if (voyager_status.switch_off) {
+				printk(KERN_ERR
+				       "Voyager front panel switch turned off again---Immediate power off!\n");
 				voyager_cat_power_off();
 				/* not reached */
 			} else {
-				printk(KERN_ERR "Voyager front panel switch turned off\n");
+				printk(KERN_ERR
+				       "Voyager front panel switch turned off\n");
 				voyager_status.switch_off = 1;
 				voyager_status.request_from_kernel = 1;
 				wake_up_process(voyager_thread);
@@ -1127,7 +1146,7 @@ voyager_cat_do_common_interrupt(void)
 
 			VDEBUG(("Voyager ac fail reg 0x%x\n",
 				psi_reg.subregs.ACfail));
-			if((psi_reg.subregs.ACfail & AC_FAIL_STAT_CHANGE) == 0) {
+			if ((psi_reg.subregs.ACfail & AC_FAIL_STAT_CHANGE) == 0) {
 				/* No further update */
 				return;
 			}
@@ -1135,20 +1154,20 @@ voyager_cat_do_common_interrupt(void)
 			/* Don't bother trying to find out who failed.
 			 * FIXME: This probably makes the code incorrect on
 			 * anything other than a 345x */
-			for(i=0; i< 5; i++) {
-				if( psi_reg.subregs.ACfail &(1<<i)) {
+			for (i = 0; i < 5; i++) {
+				if (psi_reg.subregs.ACfail & (1 << i)) {
 					break;
 				}
 			}
 			printk(KERN_NOTICE "AC FAIL IN SUPPLY %d\n", i);
 #endif
 			/* DON'T do this: it shuts down the AC PSI 
-			outb(VOYAGER_CAT_RUN, CAT_CMD);
-			data = PSI_MASK_MASK | i;
-			cat_subwrite(&psi, &psi_asic, VOYAGER_PSI_MASK,
-				     1, &data);
-			outb(VOYAGER_CAT_END, CAT_CMD);
-			*/
+			   outb(VOYAGER_CAT_RUN, CAT_CMD);
+			   data = PSI_MASK_MASK | i;
+			   cat_subwrite(&psi, &psi_asic, VOYAGER_PSI_MASK,
+			   1, &data);
+			   outb(VOYAGER_CAT_END, CAT_CMD);
+			 */
 			printk(KERN_ERR "Voyager AC power failure\n");
 			outb(VOYAGER_CAT_RUN, CAT_CMD);
 			data = PSI_COLD_START;
@@ -1159,16 +1178,16 @@ voyager_cat_do_common_interrupt(void)
 			voyager_status.request_from_kernel = 1;
 			wake_up_process(voyager_thread);
 		}
-		
-		
-	} else if(psi_reg.regs.intstatus & PSI_FAULT) {
+
+	} else if (psi_reg.regs.intstatus & PSI_FAULT) {
 		/* Major fault! */
-		printk(KERN_ERR "Voyager PSI Detected major fault, immediate power off!\n");
+		printk(KERN_ERR
+		       "Voyager PSI Detected major fault, immediate power off!\n");
 		voyager_cat_power_off();
 		/* not reached */
-	} else if(psi_reg.regs.intstatus & (PSI_DC_FAIL | PSI_ALARM
-					    | PSI_CURRENT | PSI_DVM
-					    | PSI_PSCFAULT | PSI_STAT_CHG)) {
+	} else if (psi_reg.regs.intstatus & (PSI_DC_FAIL | PSI_ALARM
+					     | PSI_CURRENT | PSI_DVM
+					     | PSI_PSCFAULT | PSI_STAT_CHG)) {
 		/* other psi fault */
 
 		printk(KERN_WARNING "Voyager PSI status 0x%x\n", data);
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index 88124dd35406..73c435ce10fd 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -32,7 +32,8 @@
 DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate) = { &init_mm, 0 };
 
 /* CPU IRQ affinity -- set to all ones initially */
-static unsigned long cpu_irq_affinity[NR_CPUS] __cacheline_aligned = { [0 ... NR_CPUS-1]  = ~0UL };
+static unsigned long cpu_irq_affinity[NR_CPUS] __cacheline_aligned =
+	{[0 ... NR_CPUS-1]  = ~0UL };
 
 /* per CPU data structure (for /proc/cpuinfo et al), visible externally
  * indexed physically */
@@ -76,7 +77,6 @@ EXPORT_SYMBOL(cpu_online_map);
  * by scheduler but indexed physically */
 cpumask_t phys_cpu_present_map = CPU_MASK_NONE;
 
-
 /* The internal functions */
 static void send_CPI(__u32 cpuset, __u8 cpi);
 static void ack_CPI(__u8 cpi);
@@ -101,94 +101,86 @@ int hard_smp_processor_id(void);
 int safe_smp_processor_id(void);
 
 /* Inline functions */
-static inline void
-send_one_QIC_CPI(__u8 cpu, __u8 cpi)
+static inline void send_one_QIC_CPI(__u8 cpu, __u8 cpi)
 {
 	voyager_quad_cpi_addr[cpu]->qic_cpi[cpi].cpi =
-		(smp_processor_id() << 16) + cpi;
+	    (smp_processor_id() << 16) + cpi;
 }
 
-static inline void
-send_QIC_CPI(__u32 cpuset, __u8 cpi)
+static inline void send_QIC_CPI(__u32 cpuset, __u8 cpi)
 {
 	int cpu;
 
 	for_each_online_cpu(cpu) {
-		if(cpuset & (1<<cpu)) {
+		if (cpuset & (1 << cpu)) {
 #ifdef VOYAGER_DEBUG
-			if(!cpu_isset(cpu, cpu_online_map))
-				VDEBUG(("CPU%d sending cpi %d to CPU%d not in cpu_online_map\n", hard_smp_processor_id(), cpi, cpu));
+			if (!cpu_isset(cpu, cpu_online_map))
+				VDEBUG(("CPU%d sending cpi %d to CPU%d not in "
+					"cpu_online_map\n",
+					hard_smp_processor_id(), cpi, cpu));
 #endif
 			send_one_QIC_CPI(cpu, cpi - QIC_CPI_OFFSET);
 		}
 	}
 }
 
-static inline void
-wrapper_smp_local_timer_interrupt(void)
+static inline void wrapper_smp_local_timer_interrupt(void)
 {
 	irq_enter();
 	smp_local_timer_interrupt();
 	irq_exit();
 }
 
-static inline void
-send_one_CPI(__u8 cpu, __u8 cpi)
+static inline void send_one_CPI(__u8 cpu, __u8 cpi)
 {
-	if(voyager_quad_processors & (1<<cpu))
+	if (voyager_quad_processors & (1 << cpu))
 		send_one_QIC_CPI(cpu, cpi - QIC_CPI_OFFSET);
 	else
-		send_CPI(1<<cpu, cpi);
+		send_CPI(1 << cpu, cpi);
 }
 
-static inline void
-send_CPI_allbutself(__u8 cpi)
+static inline void send_CPI_allbutself(__u8 cpi)
 {
 	__u8 cpu = smp_processor_id();
 	__u32 mask = cpus_addr(cpu_online_map)[0] & ~(1 << cpu);
 	send_CPI(mask, cpi);
 }
 
-static inline int
-is_cpu_quad(void)
+static inline int is_cpu_quad(void)
 {
 	__u8 cpumask = inb(VIC_PROC_WHO_AM_I);
 	return ((cpumask & QUAD_IDENTIFIER) == QUAD_IDENTIFIER);
 }
 
-static inline int
-is_cpu_extended(void)
+static inline int is_cpu_extended(void)
 {
 	__u8 cpu = hard_smp_processor_id();
 
-	return(voyager_extended_vic_processors & (1<<cpu));
+	return (voyager_extended_vic_processors & (1 << cpu));
 }
 
-static inline int
-is_cpu_vic_boot(void)
+static inline int is_cpu_vic_boot(void)
 {
 	__u8 cpu = hard_smp_processor_id();
 
-	return(voyager_extended_vic_processors
-	       & voyager_allowed_boot_processors & (1<<cpu));
+	return (voyager_extended_vic_processors
+		& voyager_allowed_boot_processors & (1 << cpu));
 }
 
-
-static inline void
-ack_CPI(__u8 cpi)
+static inline void ack_CPI(__u8 cpi)
 {
-	switch(cpi) {
+	switch (cpi) {
 	case VIC_CPU_BOOT_CPI:
-		if(is_cpu_quad() && !is_cpu_vic_boot())
+		if (is_cpu_quad() && !is_cpu_vic_boot())
 			ack_QIC_CPI(cpi);
 		else
 			ack_VIC_CPI(cpi);
 		break;
 	case VIC_SYS_INT:
-	case VIC_CMN_INT: 
+	case VIC_CMN_INT:
 		/* These are slightly strange.  Even on the Quad card,
 		 * They are vectored as VIC CPIs */
-		if(is_cpu_quad())
+		if (is_cpu_quad())
 			ack_special_QIC_CPI(cpi);
 		else
 			ack_VIC_CPI(cpi);
@@ -205,11 +197,11 @@ ack_CPI(__u8 cpi)
  * 8259 IRQs except that masks and things must be kept per processor
  */
 static struct irq_chip vic_chip = {
-	.name		= "VIC",
-	.startup	= startup_vic_irq,
-	.mask		= mask_vic_irq,
-	.unmask		= unmask_vic_irq,
-	.set_affinity	= set_vic_irq_affinity,
+	.name = "VIC",
+	.startup = startup_vic_irq,
+	.mask = mask_vic_irq,
+	.unmask = unmask_vic_irq,
+	.set_affinity = set_vic_irq_affinity,
 };
 
 /* used to count up as CPUs are brought on line (starts at 0) */
@@ -223,7 +215,7 @@ static __u32 trampoline_base;
 /* The per cpu profile stuff - used in smp_local_timer_interrupt */
 static DEFINE_PER_CPU(int, prof_multiplier) = 1;
 static DEFINE_PER_CPU(int, prof_old_multiplier) = 1;
-static DEFINE_PER_CPU(int, prof_counter) =  1;
+static DEFINE_PER_CPU(int, prof_counter) = 1;
 
 /* the map used to check if a CPU has booted */
 static __u32 cpu_booted_map;
@@ -246,9 +238,9 @@ static __u16 vic_irq_mask[NR_CPUS] __cacheline_aligned;
 static __u16 vic_irq_enable_mask[NR_CPUS] __cacheline_aligned = { 0 };
 
 /* Lock for enable/disable of VIC interrupts */
-static  __cacheline_aligned DEFINE_SPINLOCK(vic_irq_lock);
+static __cacheline_aligned DEFINE_SPINLOCK(vic_irq_lock);
 
-/* The boot processor is correctly set up in PC mode when it 
+/* The boot processor is correctly set up in PC mode when it
  * comes up, but the secondaries need their master/slave 8259
  * pairs initializing correctly */
 
@@ -262,8 +254,7 @@ static unsigned long vic_tick[NR_CPUS] __cacheline_aligned = { 0 };
 static unsigned long vic_cpi_mailbox[NR_CPUS] __cacheline_aligned;
 
 /* debugging routine to read the isr of the cpu's pic */
-static inline __u16
-vic_read_isr(void)
+static inline __u16 vic_read_isr(void)
 {
 	__u16 isr;
 
@@ -275,17 +266,16 @@ vic_read_isr(void)
 	return isr;
 }
 
-static __init void
-qic_setup(void)
+static __init void qic_setup(void)
 {
-	if(!is_cpu_quad()) {
+	if (!is_cpu_quad()) {
 		/* not a quad, no setup */
 		return;
 	}
 	outb(QIC_DEFAULT_MASK0, QIC_MASK_REGISTER0);
 	outb(QIC_CPI_ENABLE, QIC_MASK_REGISTER1);
-	
-	if(is_cpu_extended()) {
+
+	if (is_cpu_extended()) {
 		/* the QIC duplicate of the VIC base register */
 		outb(VIC_DEFAULT_CPI_BASE, QIC_VIC_CPI_BASE_REGISTER);
 		outb(QIC_DEFAULT_CPI_BASE, QIC_CPI_BASE_REGISTER);
@@ -295,8 +285,7 @@ qic_setup(void)
 	}
 }
 
-static __init void
-vic_setup_pic(void)
+static __init void vic_setup_pic(void)
 {
 	outb(1, VIC_REDIRECT_REGISTER_1);
 	/* clear the claim registers for dynamic routing */
@@ -333,7 +322,7 @@ vic_setup_pic(void)
 
 	/* ICW2: slave vector base */
 	outb(FIRST_EXTERNAL_VECTOR + 8, 0xA1);
-	
+
 	/* ICW3: slave ID */
 	outb(0x02, 0xA1);
 
@@ -341,19 +330,18 @@ vic_setup_pic(void)
 	outb(0x01, 0xA1);
 }
 
-static void
-do_quad_bootstrap(void)
+static void do_quad_bootstrap(void)
 {
-	if(is_cpu_quad() && is_cpu_vic_boot()) {
+	if (is_cpu_quad() && is_cpu_vic_boot()) {
 		int i;
 		unsigned long flags;
 		__u8 cpuid = hard_smp_processor_id();
 
 		local_irq_save(flags);
 
-		for(i = 0; i<4; i++) {
+		for (i = 0; i < 4; i++) {
 			/* FIXME: this would be >>3 &0x7 on the 32 way */
-			if(((cpuid >> 2) & 0x03) == i)
+			if (((cpuid >> 2) & 0x03) == i)
 				/* don't lower our own mask! */
 				continue;
 
@@ -368,12 +356,10 @@ do_quad_bootstrap(void)
 	}
 }
 
-
 /* Set up all the basic stuff: read the SMP config and make all the
  * SMP information reflect only the boot cpu.  All others will be
  * brought on-line later. */
-void __init 
-find_smp_config(void)
+void __init find_smp_config(void)
 {
 	int i;
 
@@ -382,24 +368,31 @@ find_smp_config(void)
 	printk("VOYAGER SMP: Boot cpu is %d\n", boot_cpu_id);
 
 	/* initialize the CPU structures (moved from smp_boot_cpus) */
-	for(i=0; i<NR_CPUS; i++) {
+	for (i = 0; i < NR_CPUS; i++) {
 		cpu_irq_affinity[i] = ~0;
 	}
 	cpu_online_map = cpumask_of_cpu(boot_cpu_id);
 
 	/* The boot CPU must be extended */
-	voyager_extended_vic_processors = 1<<boot_cpu_id;
+	voyager_extended_vic_processors = 1 << boot_cpu_id;
 	/* initially, all of the first 8 CPUs can boot */
 	voyager_allowed_boot_processors = 0xff;
 	/* set up everything for just this CPU, we can alter
 	 * this as we start the other CPUs later */
 	/* now get the CPU disposition from the extended CMOS */
-	cpus_addr(phys_cpu_present_map)[0] = voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK);
-	cpus_addr(phys_cpu_present_map)[0] |= voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 1) << 8;
-	cpus_addr(phys_cpu_present_map)[0] |= voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 2) << 16;
-	cpus_addr(phys_cpu_present_map)[0] |= voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 3) << 24;
+	cpus_addr(phys_cpu_present_map)[0] =
+	    voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK);
+	cpus_addr(phys_cpu_present_map)[0] |=
+	    voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 1) << 8;
+	cpus_addr(phys_cpu_present_map)[0] |=
+	    voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK +
+				       2) << 16;
+	cpus_addr(phys_cpu_present_map)[0] |=
+	    voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK +
+				       3) << 24;
 	cpu_possible_map = phys_cpu_present_map;
-	printk("VOYAGER SMP: phys_cpu_present_map = 0x%lx\n", cpus_addr(phys_cpu_present_map)[0]);
+	printk("VOYAGER SMP: phys_cpu_present_map = 0x%lx\n",
+	       cpus_addr(phys_cpu_present_map)[0]);
 	/* Here we set up the VIC to enable SMP */
 	/* enable the CPIs by writing the base vector to their register */
 	outb(VIC_DEFAULT_CPI_BASE, VIC_CPI_BASE_REGISTER);
@@ -427,8 +420,7 @@ find_smp_config(void)
 /*
  *	The bootstrap kernel entry code has set these up. Save them
  *	for a given CPU, id is physical */
-void __init
-smp_store_cpu_info(int id)
+void __init smp_store_cpu_info(int id)
 {
 	struct cpuinfo_x86 *c = &cpu_data(id);
 
@@ -438,21 +430,19 @@ smp_store_cpu_info(int id)
 }
 
 /* set up the trampoline and return the physical address of the code */
-static __u32 __init
-setup_trampoline(void)
+static __u32 __init setup_trampoline(void)
 {
 	/* these two are global symbols in trampoline.S */
 	extern const __u8 trampoline_end[];
 	extern const __u8 trampoline_data[];
 
-	memcpy((__u8 *)trampoline_base, trampoline_data,
+	memcpy((__u8 *) trampoline_base, trampoline_data,
 	       trampoline_end - trampoline_data);
-	return virt_to_phys((__u8 *)trampoline_base);
+	return virt_to_phys((__u8 *) trampoline_base);
 }
 
 /* Routine initially called when a non-boot CPU is brought online */
-static void __init
-start_secondary(void *unused)
+static void __init start_secondary(void *unused)
 {
 	__u8 cpuid = hard_smp_processor_id();
 	/* external functions not defined in the headers */
@@ -464,17 +454,18 @@ start_secondary(void *unused)
 	ack_CPI(VIC_CPU_BOOT_CPI);
 
 	/* setup the 8259 master slave pair belonging to this CPU ---
-         * we won't actually receive any until the boot CPU
-         * relinquishes it's static routing mask */
+	 * we won't actually receive any until the boot CPU
+	 * relinquishes it's static routing mask */
 	vic_setup_pic();
 
 	qic_setup();
 
-	if(is_cpu_quad() && !is_cpu_vic_boot()) {
+	if (is_cpu_quad() && !is_cpu_vic_boot()) {
 		/* clear the boot CPI */
 		__u8 dummy;
 
-		dummy = voyager_quad_cpi_addr[cpuid]->qic_cpi[VIC_CPU_BOOT_CPI].cpi;
+		dummy =
+		    voyager_quad_cpi_addr[cpuid]->qic_cpi[VIC_CPU_BOOT_CPI].cpi;
 		printk("read dummy %d\n", dummy);
 	}
 
@@ -516,7 +507,6 @@ start_secondary(void *unused)
 	cpu_idle();
 }
 
-
 /* Routine to kick start the given CPU and wait for it to report ready
  * (or timeout in startup).  When this routine returns, the requested
  * CPU is either fully running and configured or known to be dead.
@@ -524,15 +514,14 @@ start_secondary(void *unused)
  * We call this routine sequentially 1 CPU at a time, so no need for
  * locking */
 
-static void __init
-do_boot_cpu(__u8 cpu)
+static void __init do_boot_cpu(__u8 cpu)
 {
 	struct task_struct *idle;
 	int timeout;
 	unsigned long flags;
-	int quad_boot = (1<<cpu) & voyager_quad_processors 
-		& ~( voyager_extended_vic_processors
-		     & voyager_allowed_boot_processors);
+	int quad_boot = (1 << cpu) & voyager_quad_processors
+	    & ~(voyager_extended_vic_processors
+		& voyager_allowed_boot_processors);
 
 	/* This is an area in head.S which was used to set up the
 	 * initial kernel stack.  We need to alter this to give the
@@ -543,10 +532,10 @@ do_boot_cpu(__u8 cpu)
 	} stack_start;
 	/* This is the format of the CPI IDT gate (in real mode) which
 	 * we're hijacking to boot the CPU */
-	union 	IDTFormat {
+	union IDTFormat {
 		struct seg {
-			__u16	Offset;
-			__u16	Segment;
+			__u16 Offset;
+			__u16 Segment;
 		} idt;
 		__u32 val;
 	} hijack_source;
@@ -565,19 +554,19 @@ do_boot_cpu(__u8 cpu)
 	alternatives_smp_switch(1);
 
 	idle = fork_idle(cpu);
-	if(IS_ERR(idle))
+	if (IS_ERR(idle))
 		panic("failed fork for CPU%d", cpu);
-	idle->thread.eip = (unsigned long) start_secondary;
+	idle->thread.eip = (unsigned long)start_secondary;
 	/* init_tasks (in sched.c) is indexed logically */
-	stack_start.esp = (void *) idle->thread.esp;
+	stack_start.esp = (void *)idle->thread.esp;
 
 	init_gdt(cpu);
- 	per_cpu(current_task, cpu) = idle;
+	per_cpu(current_task, cpu) = idle;
 	early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
 	irq_ctx_init(cpu);
 
 	/* Note: Don't modify initial ss override */
-	VDEBUG(("VOYAGER SMP: Booting CPU%d at 0x%lx[%x:%x], stack %p\n", cpu, 
+	VDEBUG(("VOYAGER SMP: Booting CPU%d at 0x%lx[%x:%x], stack %p\n", cpu,
 		(unsigned long)hijack_source.val, hijack_source.idt.Segment,
 		hijack_source.idt.Offset, stack_start.esp));
 
@@ -586,16 +575,23 @@ do_boot_cpu(__u8 cpu)
 			min_t(unsigned long, KERNEL_PGD_PTRS, USER_PGD_PTRS));
 	flush_tlb_all();
 
-	if(quad_boot) {
+	if (quad_boot) {
 		printk("CPU %d: non extended Quad boot\n", cpu);
-		hijack_vector = (__u32 *)phys_to_virt((VIC_CPU_BOOT_CPI + QIC_DEFAULT_CPI_BASE)*4);
+		hijack_vector =
+		    (__u32 *)
+		    phys_to_virt((VIC_CPU_BOOT_CPI + QIC_DEFAULT_CPI_BASE) * 4);
 		*hijack_vector = hijack_source.val;
 	} else {
 		printk("CPU%d: extended VIC boot\n", cpu);
-		hijack_vector = (__u32 *)phys_to_virt((VIC_CPU_BOOT_CPI + VIC_DEFAULT_CPI_BASE)*4);
+		hijack_vector =
+		    (__u32 *)
+		    phys_to_virt((VIC_CPU_BOOT_CPI + VIC_DEFAULT_CPI_BASE) * 4);
 		*hijack_vector = hijack_source.val;
 		/* VIC errata, may also receive interrupt at this address */
-		hijack_vector = (__u32 *)phys_to_virt((VIC_CPU_BOOT_ERRATA_CPI + VIC_DEFAULT_CPI_BASE)*4);
+		hijack_vector =
+		    (__u32 *)
+		    phys_to_virt((VIC_CPU_BOOT_ERRATA_CPI +
+				  VIC_DEFAULT_CPI_BASE) * 4);
 		*hijack_vector = hijack_source.val;
 	}
 	/* All non-boot CPUs start with interrupts fully masked.  Need
@@ -603,73 +599,76 @@ do_boot_cpu(__u8 cpu)
 	 * this in the VIC by masquerading as the processor we're
 	 * about to boot and lowering its interrupt mask */
 	local_irq_save(flags);
-	if(quad_boot) {
+	if (quad_boot) {
 		send_one_QIC_CPI(cpu, VIC_CPU_BOOT_CPI);
 	} else {
 		outb(VIC_CPU_MASQUERADE_ENABLE | cpu, VIC_PROCESSOR_ID);
 		/* here we're altering registers belonging to `cpu' */
-		
+
 		outb(VIC_BOOT_INTERRUPT_MASK, 0x21);
 		/* now go back to our original identity */
 		outb(boot_cpu_id, VIC_PROCESSOR_ID);
 
 		/* and boot the CPU */
 
-		send_CPI((1<<cpu), VIC_CPU_BOOT_CPI);
+		send_CPI((1 << cpu), VIC_CPU_BOOT_CPI);
 	}
 	cpu_booted_map = 0;
 	local_irq_restore(flags);
 
 	/* now wait for it to become ready (or timeout) */
-	for(timeout = 0; timeout < 50000; timeout++) {
-		if(cpu_booted_map)
+	for (timeout = 0; timeout < 50000; timeout++) {
+		if (cpu_booted_map)
 			break;
 		udelay(100);
 	}
 	/* reset the page table */
 	zap_low_mappings();
-	  
+
 	if (cpu_booted_map) {
 		VDEBUG(("CPU%d: Booted successfully, back in CPU %d\n",
 			cpu, smp_processor_id()));
-	
+
 		printk("CPU%d: ", cpu);
 		print_cpu_info(&cpu_data(cpu));
 		wmb();
 		cpu_set(cpu, cpu_callout_map);
 		cpu_set(cpu, cpu_present_map);
-	}
-	else {
+	} else {
 		printk("CPU%d FAILED TO BOOT: ", cpu);
-		if (*((volatile unsigned char *)phys_to_virt(start_phys_address))==0xA5)
+		if (*
+		    ((volatile unsigned char *)phys_to_virt(start_phys_address))
+		    == 0xA5)
 			printk("Stuck.\n");
 		else
 			printk("Not responding.\n");
-		
+
 		cpucount--;
 	}
 }
 
-void __init
-smp_boot_cpus(void)
+void __init smp_boot_cpus(void)
 {
 	int i;
 
 	/* CAT BUS initialisation must be done after the memory */
 	/* FIXME: The L4 has a catbus too, it just needs to be
 	 * accessed in a totally different way */
-	if(voyager_level == 5) {
+	if (voyager_level == 5) {
 		voyager_cat_init();
 
 		/* now that the cat has probed the Voyager System Bus, sanity
 		 * check the cpu map */
-		if( ((voyager_quad_processors | voyager_extended_vic_processors)
-		     & cpus_addr(phys_cpu_present_map)[0]) != cpus_addr(phys_cpu_present_map)[0]) {
+		if (((voyager_quad_processors | voyager_extended_vic_processors)
+		     & cpus_addr(phys_cpu_present_map)[0]) !=
+		    cpus_addr(phys_cpu_present_map)[0]) {
 			/* should panic */
-			printk("\n\n***WARNING*** Sanity check of CPU present map FAILED\n");
+			printk("\n\n***WARNING*** "
+			       "Sanity check of CPU present map FAILED\n");
 		}
-	} else if(voyager_level == 4)
-		voyager_extended_vic_processors = cpus_addr(phys_cpu_present_map)[0];
+	} else if (voyager_level == 4)
+		voyager_extended_vic_processors =
+		    cpus_addr(phys_cpu_present_map)[0];
 
 	/* this sets up the idle task to run on the current cpu */
 	voyager_extended_cpus = 1;
@@ -678,14 +677,14 @@ smp_boot_cpus(void)
 	//global_irq_holder = boot_cpu_id;
 
 	/* FIXME: Need to do something about this but currently only works
-	 * on CPUs with a tsc which none of mine have. 
-	smp_tune_scheduling();
+	 * on CPUs with a tsc which none of mine have.
+	 smp_tune_scheduling();
 	 */
 	smp_store_cpu_info(boot_cpu_id);
 	printk("CPU%d: ", boot_cpu_id);
 	print_cpu_info(&cpu_data(boot_cpu_id));
 
-	if(is_cpu_quad()) {
+	if (is_cpu_quad()) {
 		/* booting on a Quad CPU */
 		printk("VOYAGER SMP: Boot CPU is Quad\n");
 		qic_setup();
@@ -697,11 +696,11 @@ smp_boot_cpus(void)
 
 	cpu_set(boot_cpu_id, cpu_online_map);
 	cpu_set(boot_cpu_id, cpu_callout_map);
-	
-	/* loop over all the extended VIC CPUs and boot them.  The 
+
+	/* loop over all the extended VIC CPUs and boot them.  The
 	 * Quad CPUs must be bootstrapped by their extended VIC cpu */
-	for(i = 0; i < NR_CPUS; i++) {
-		if(i == boot_cpu_id || !cpu_isset(i, phys_cpu_present_map))
+	for (i = 0; i < NR_CPUS; i++) {
+		if (i == boot_cpu_id || !cpu_isset(i, phys_cpu_present_map))
 			continue;
 		do_boot_cpu(i);
 		/* This udelay seems to be needed for the Quad boots
@@ -715,25 +714,26 @@ smp_boot_cpus(void)
 		for (i = 0; i < NR_CPUS; i++)
 			if (cpu_isset(i, cpu_online_map))
 				bogosum += cpu_data(i).loops_per_jiffy;
-		printk(KERN_INFO "Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
-			cpucount+1,
-			bogosum/(500000/HZ),
-			(bogosum/(5000/HZ))%100);
+		printk(KERN_INFO "Total of %d processors activated "
+		       "(%lu.%02lu BogoMIPS).\n",
+		       cpucount + 1, bogosum / (500000 / HZ),
+		       (bogosum / (5000 / HZ)) % 100);
 	}
 	voyager_extended_cpus = hweight32(voyager_extended_vic_processors);
-	printk("VOYAGER: Extended (interrupt handling CPUs): %d, non-extended: %d\n", voyager_extended_cpus, num_booting_cpus() - voyager_extended_cpus);
+	printk("VOYAGER: Extended (interrupt handling CPUs): "
+	       "%d, non-extended: %d\n", voyager_extended_cpus,
+	       num_booting_cpus() - voyager_extended_cpus);
 	/* that's it, switch to symmetric mode */
 	outb(0, VIC_PRIORITY_REGISTER);
 	outb(0, VIC_CLAIM_REGISTER_0);
 	outb(0, VIC_CLAIM_REGISTER_1);
-	
+
 	VDEBUG(("VOYAGER SMP: Booted with %d CPUs\n", num_booting_cpus()));
 }
 
 /* Reload the secondary CPUs task structure (this function does not
  * return ) */
-void __init 
-initialize_secondary(void)
+void __init initialize_secondary(void)
 {
 #if 0
 	// AC kernels only
@@ -745,11 +745,9 @@ initialize_secondary(void)
 	 * basically just the stack pointer and the eip.
 	 */
 
-	asm volatile(
-		"movl %0,%%esp\n\t"
-		"jmp *%1"
-		:
-		:"r" (current->thread.esp),"r" (current->thread.eip));
+	asm volatile ("movl %0,%%esp\n\t"
+		      "jmp *%1"::"r" (current->thread.esp),
+		      "r"(current->thread.eip));
 }
 
 /* handle a Voyager SYS_INT -- If we don't, the base board will
@@ -758,25 +756,23 @@ initialize_secondary(void)
  * System interrupts occur because some problem was detected on the
  * various busses.  To find out what you have to probe all the
  * hardware via the CAT bus.  FIXME: At the moment we do nothing. */
-fastcall void
-smp_vic_sys_interrupt(struct pt_regs *regs)
+fastcall void smp_vic_sys_interrupt(struct pt_regs *regs)
 {
 	ack_CPI(VIC_SYS_INT);
-	printk("Voyager SYSTEM INTERRUPT\n");	
+	printk("Voyager SYSTEM INTERRUPT\n");
 }
 
 /* Handle a voyager CMN_INT; These interrupts occur either because of
  * a system status change or because a single bit memory error
  * occurred.  FIXME: At the moment, ignore all this. */
-fastcall void
-smp_vic_cmn_interrupt(struct pt_regs *regs)
+fastcall void smp_vic_cmn_interrupt(struct pt_regs *regs)
 {
 	static __u8 in_cmn_int = 0;
 	static DEFINE_SPINLOCK(cmn_int_lock);
 
 	/* common ints are broadcast, so make sure we only do this once */
 	_raw_spin_lock(&cmn_int_lock);
-	if(in_cmn_int)
+	if (in_cmn_int)
 		goto unlock_end;
 
 	in_cmn_int++;
@@ -784,12 +780,12 @@ smp_vic_cmn_interrupt(struct pt_regs *regs)
 
 	VDEBUG(("Voyager COMMON INTERRUPT\n"));
 
-	if(voyager_level == 5)
+	if (voyager_level == 5)
 		voyager_cat_do_common_interrupt();
 
 	_raw_spin_lock(&cmn_int_lock);
 	in_cmn_int = 0;
- unlock_end:
+      unlock_end:
 	_raw_spin_unlock(&cmn_int_lock);
 	ack_CPI(VIC_CMN_INT);
 }
@@ -797,26 +793,24 @@ smp_vic_cmn_interrupt(struct pt_regs *regs)
 /*
  * Reschedule call back. Nothing to do, all the work is done
  * automatically when we return from the interrupt.  */
-static void
-smp_reschedule_interrupt(void)
+static void smp_reschedule_interrupt(void)
 {
 	/* do nothing */
 }
 
-static struct mm_struct * flush_mm;
+static struct mm_struct *flush_mm;
 static unsigned long flush_va;
 static DEFINE_SPINLOCK(tlbstate_lock);
 #define FLUSH_ALL	0xffffffff
 
 /*
- * We cannot call mmdrop() because we are in interrupt context, 
+ * We cannot call mmdrop() because we are in interrupt context,
  * instead update mm->cpu_vm_mask.
  *
  * We need to reload %cr3 since the page tables may be going
  * away from under us..
  */
-static inline void
-leave_mm (unsigned long cpu)
+static inline void leave_mm(unsigned long cpu)
 {
 	if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK)
 		BUG();
@@ -824,12 +818,10 @@ leave_mm (unsigned long cpu)
 	load_cr3(swapper_pg_dir);
 }
 
-
 /*
  * Invalidate call-back
  */
-static void 
-smp_invalidate_interrupt(void)
+static void smp_invalidate_interrupt(void)
 {
 	__u8 cpu = smp_processor_id();
 
@@ -837,9 +829,9 @@ smp_invalidate_interrupt(void)
 		return;
 	/* This will flood messages.  Don't uncomment unless you see
 	 * Problems with cross cpu invalidation
-	VDEBUG(("VOYAGER SMP: CPU%d received INVALIDATE_CPI\n",
-		smp_processor_id()));
-	*/
+	 VDEBUG(("VOYAGER SMP: CPU%d received INVALIDATE_CPI\n",
+	 smp_processor_id()));
+	 */
 
 	if (flush_mm == per_cpu(cpu_tlbstate, cpu).active_mm) {
 		if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK) {
@@ -857,11 +849,10 @@ smp_invalidate_interrupt(void)
 
 /* All the new flush operations for 2.4 */
 
-
 /* This routine is called with a physical cpu mask */
 static void
-voyager_flush_tlb_others (unsigned long cpumask, struct mm_struct *mm,
-			  unsigned long va)
+voyager_flush_tlb_others(unsigned long cpumask, struct mm_struct *mm,
+			 unsigned long va)
 {
 	int stuck = 50000;
 
@@ -875,7 +866,7 @@ voyager_flush_tlb_others (unsigned long cpumask, struct mm_struct *mm,
 		BUG();
 
 	spin_lock(&tlbstate_lock);
-	
+
 	flush_mm = mm;
 	flush_va = va;
 	atomic_set_mask(cpumask, &smp_invalidate_needed);
@@ -887,23 +878,23 @@ voyager_flush_tlb_others (unsigned long cpumask, struct mm_struct *mm,
 
 	while (smp_invalidate_needed) {
 		mb();
-		if(--stuck == 0) {
-			printk("***WARNING*** Stuck doing invalidate CPI (CPU%d)\n", smp_processor_id());
+		if (--stuck == 0) {
+			printk("***WARNING*** Stuck doing invalidate CPI "
+			       "(CPU%d)\n", smp_processor_id());
 			break;
 		}
 	}
 
 	/* Uncomment only to debug invalidation problems
-	VDEBUG(("VOYAGER SMP: Completed invalidate CPI (CPU%d)\n", cpu));
-	*/
+	   VDEBUG(("VOYAGER SMP: Completed invalidate CPI (CPU%d)\n", cpu));
+	 */
 
 	flush_mm = NULL;
 	flush_va = 0;
 	spin_unlock(&tlbstate_lock);
 }
 
-void
-flush_tlb_current_task(void)
+void flush_tlb_current_task(void)
 {
 	struct mm_struct *mm = current->mm;
 	unsigned long cpu_mask;
@@ -918,9 +909,7 @@ flush_tlb_current_task(void)
 	preempt_enable();
 }
 
-
-void
-flush_tlb_mm (struct mm_struct * mm)
+void flush_tlb_mm(struct mm_struct *mm)
 {
 	unsigned long cpu_mask;
 
@@ -940,7 +929,7 @@ flush_tlb_mm (struct mm_struct * mm)
 	preempt_enable();
 }
 
-void flush_tlb_page(struct vm_area_struct * vma, unsigned long va)
+void flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	unsigned long cpu_mask;
@@ -949,10 +938,10 @@ void flush_tlb_page(struct vm_area_struct * vma, unsigned long va)
 
 	cpu_mask = cpus_addr(mm->cpu_vm_mask)[0] & ~(1 << smp_processor_id());
 	if (current->active_mm == mm) {
-		if(current->mm)
+		if (current->mm)
 			__flush_tlb_one(va);
-		 else
-		 	leave_mm(smp_processor_id());
+		else
+			leave_mm(smp_processor_id());
 	}
 
 	if (cpu_mask)
@@ -960,21 +949,21 @@ void flush_tlb_page(struct vm_area_struct * vma, unsigned long va)
 
 	preempt_enable();
 }
+
 EXPORT_SYMBOL(flush_tlb_page);
 
 /* enable the requested IRQs */
-static void
-smp_enable_irq_interrupt(void)
+static void smp_enable_irq_interrupt(void)
 {
 	__u8 irq;
 	__u8 cpu = get_cpu();
 
 	VDEBUG(("VOYAGER SMP: CPU%d enabling irq mask 0x%x\n", cpu,
-	       vic_irq_enable_mask[cpu]));
+		vic_irq_enable_mask[cpu]));
 
 	spin_lock(&vic_irq_lock);
-	for(irq = 0; irq < 16; irq++) {
-		if(vic_irq_enable_mask[cpu] & (1<<irq))
+	for (irq = 0; irq < 16; irq++) {
+		if (vic_irq_enable_mask[cpu] & (1 << irq))
 			enable_local_vic_irq(irq);
 	}
 	vic_irq_enable_mask[cpu] = 0;
@@ -982,17 +971,16 @@ smp_enable_irq_interrupt(void)
 
 	put_cpu_no_resched();
 }
-	
+
 /*
  *	CPU halt call-back
  */
-static void
-smp_stop_cpu_function(void *dummy)
+static void smp_stop_cpu_function(void *dummy)
 {
 	VDEBUG(("VOYAGER SMP: CPU%d is STOPPING\n", smp_processor_id()));
 	cpu_clear(smp_processor_id(), cpu_online_map);
 	local_irq_disable();
-	for(;;)
+	for (;;)
 		halt();
 }
 
@@ -1006,14 +994,13 @@ struct call_data_struct {
 	int wait;
 };
 
-static struct call_data_struct * call_data;
+static struct call_data_struct *call_data;
 
 /* execute a thread on a new CPU.  The function to be called must be
  * previously set up.  This is used to schedule a function for
  * execution on all CPUs - set up the function then broadcast a
  * function_interrupt CPI to come here on each CPU */
-static void
-smp_call_function_interrupt(void)
+static void smp_call_function_interrupt(void)
 {
 	void (*func) (void *info) = call_data->func;
 	void *info = call_data->info;
@@ -1027,16 +1014,17 @@ smp_call_function_interrupt(void)
 	 * about to execute the function
 	 */
 	mb();
-	if(!test_and_clear_bit(cpu, &call_data->started)) {
+	if (!test_and_clear_bit(cpu, &call_data->started)) {
 		/* If the bit wasn't set, this could be a replay */
-		printk(KERN_WARNING "VOYAGER SMP: CPU %d received call funtion with no call pending\n", cpu);
+		printk(KERN_WARNING "VOYAGER SMP: CPU %d received call funtion"
+		       " with no call pending\n", cpu);
 		return;
 	}
 	/*
 	 * At this point the info structure may be out of scope unless wait==1
 	 */
 	irq_enter();
-	(*func)(info);
+	(*func) (info);
 	__get_cpu_var(irq_stat).irq_call_count++;
 	irq_exit();
 	if (wait) {
@@ -1046,14 +1034,13 @@ smp_call_function_interrupt(void)
 }
 
 static int
-voyager_smp_call_function_mask (cpumask_t cpumask,
-				void (*func) (void *info), void *info,
-				int wait)
+voyager_smp_call_function_mask(cpumask_t cpumask,
+			       void (*func) (void *info), void *info, int wait)
 {
 	struct call_data_struct data;
 	u32 mask = cpus_addr(cpumask)[0];
 
-	mask &= ~(1<<smp_processor_id());
+	mask &= ~(1 << smp_processor_id());
 
 	if (!mask)
 		return 0;
@@ -1093,7 +1080,7 @@ voyager_smp_call_function_mask (cpumask_t cpumask,
  * so we use the system clock to interrupt one processor, which in
  * turn, broadcasts a timer CPI to all the others --- we receive that
  * CPI here.  We don't use this actually for counting so losing
- * ticks doesn't matter 
+ * ticks doesn't matter
  *
  * FIXME: For those CPUs which actually have a local APIC, we could
  * try to use it to trigger this interrupt instead of having to
@@ -1101,8 +1088,7 @@ voyager_smp_call_function_mask (cpumask_t cpumask,
  * no local APIC, so I can't do this
  *
  * This function is currently a placeholder and is unused in the code */
-fastcall void 
-smp_apic_timer_interrupt(struct pt_regs *regs)
+fastcall void smp_apic_timer_interrupt(struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
 	wrapper_smp_local_timer_interrupt();
@@ -1110,8 +1096,7 @@ smp_apic_timer_interrupt(struct pt_regs *regs)
 }
 
 /* All of the QUAD interrupt GATES */
-fastcall void
-smp_qic_timer_interrupt(struct pt_regs *regs)
+fastcall void smp_qic_timer_interrupt(struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
 	ack_QIC_CPI(QIC_TIMER_CPI);
@@ -1119,60 +1104,54 @@ smp_qic_timer_interrupt(struct pt_regs *regs)
 	set_irq_regs(old_regs);
 }
 
-fastcall void
-smp_qic_invalidate_interrupt(struct pt_regs *regs)
+fastcall void smp_qic_invalidate_interrupt(struct pt_regs *regs)
 {
 	ack_QIC_CPI(QIC_INVALIDATE_CPI);
 	smp_invalidate_interrupt();
 }
 
-fastcall void
-smp_qic_reschedule_interrupt(struct pt_regs *regs)
+fastcall void smp_qic_reschedule_interrupt(struct pt_regs *regs)
 {
 	ack_QIC_CPI(QIC_RESCHEDULE_CPI);
 	smp_reschedule_interrupt();
 }
 
-fastcall void
-smp_qic_enable_irq_interrupt(struct pt_regs *regs)
+fastcall void smp_qic_enable_irq_interrupt(struct pt_regs *regs)
 {
 	ack_QIC_CPI(QIC_ENABLE_IRQ_CPI);
 	smp_enable_irq_interrupt();
 }
 
-fastcall void
-smp_qic_call_function_interrupt(struct pt_regs *regs)
+fastcall void smp_qic_call_function_interrupt(struct pt_regs *regs)
 {
 	ack_QIC_CPI(QIC_CALL_FUNCTION_CPI);
 	smp_call_function_interrupt();
 }
 
-fastcall void
-smp_vic_cpi_interrupt(struct pt_regs *regs)
+fastcall void smp_vic_cpi_interrupt(struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
 	__u8 cpu = smp_processor_id();
 
-	if(is_cpu_quad())
+	if (is_cpu_quad())
 		ack_QIC_CPI(VIC_CPI_LEVEL0);
 	else
 		ack_VIC_CPI(VIC_CPI_LEVEL0);
 
-	if(test_and_clear_bit(VIC_TIMER_CPI, &vic_cpi_mailbox[cpu]))
+	if (test_and_clear_bit(VIC_TIMER_CPI, &vic_cpi_mailbox[cpu]))
 		wrapper_smp_local_timer_interrupt();
-	if(test_and_clear_bit(VIC_INVALIDATE_CPI, &vic_cpi_mailbox[cpu]))
+	if (test_and_clear_bit(VIC_INVALIDATE_CPI, &vic_cpi_mailbox[cpu]))
 		smp_invalidate_interrupt();
-	if(test_and_clear_bit(VIC_RESCHEDULE_CPI, &vic_cpi_mailbox[cpu]))
+	if (test_and_clear_bit(VIC_RESCHEDULE_CPI, &vic_cpi_mailbox[cpu]))
 		smp_reschedule_interrupt();
-	if(test_and_clear_bit(VIC_ENABLE_IRQ_CPI, &vic_cpi_mailbox[cpu]))
+	if (test_and_clear_bit(VIC_ENABLE_IRQ_CPI, &vic_cpi_mailbox[cpu]))
 		smp_enable_irq_interrupt();
-	if(test_and_clear_bit(VIC_CALL_FUNCTION_CPI, &vic_cpi_mailbox[cpu]))
+	if (test_and_clear_bit(VIC_CALL_FUNCTION_CPI, &vic_cpi_mailbox[cpu]))
 		smp_call_function_interrupt();
 	set_irq_regs(old_regs);
 }
 
-static void
-do_flush_tlb_all(void* info)
+static void do_flush_tlb_all(void *info)
 {
 	unsigned long cpu = smp_processor_id();
 
@@ -1181,65 +1160,56 @@ do_flush_tlb_all(void* info)
 		leave_mm(cpu);
 }
 
-
 /* flush the TLB of every active CPU in the system */
-void
-flush_tlb_all(void)
+void flush_tlb_all(void)
 {
 	on_each_cpu(do_flush_tlb_all, 0, 1, 1);
 }
 
 /* used to set up the trampoline for other CPUs when the memory manager
  * is sorted out */
-void __init
-smp_alloc_memory(void)
+void __init smp_alloc_memory(void)
 {
-	trampoline_base = (__u32)alloc_bootmem_low_pages(PAGE_SIZE);
-	if(__pa(trampoline_base) >= 0x93000)
+	trampoline_base = (__u32) alloc_bootmem_low_pages(PAGE_SIZE);
+	if (__pa(trampoline_base) >= 0x93000)
 		BUG();
 }
 
 /* send a reschedule CPI to one CPU by physical CPU number*/
-static void
-voyager_smp_send_reschedule(int cpu)
+static void voyager_smp_send_reschedule(int cpu)
 {
 	send_one_CPI(cpu, VIC_RESCHEDULE_CPI);
 }
 
-
-int
-hard_smp_processor_id(void)
+int hard_smp_processor_id(void)
 {
 	__u8 i;
 	__u8 cpumask = inb(VIC_PROC_WHO_AM_I);
-	if((cpumask & QUAD_IDENTIFIER) == QUAD_IDENTIFIER)
+	if ((cpumask & QUAD_IDENTIFIER) == QUAD_IDENTIFIER)
 		return cpumask & 0x1F;
 
-	for(i = 0; i < 8; i++) {
-		if(cpumask & (1<<i))
+	for (i = 0; i < 8; i++) {
+		if (cpumask & (1 << i))
 			return i;
 	}
 	printk("** WARNING ** Illegal cpuid returned by VIC: %d", cpumask);
 	return 0;
 }
 
-int
-safe_smp_processor_id(void)
+int safe_smp_processor_id(void)
 {
 	return hard_smp_processor_id();
 }
 
 /* broadcast a halt to all other CPUs */
-static void
-voyager_smp_send_stop(void)
+static void voyager_smp_send_stop(void)
 {
 	smp_call_function(smp_stop_cpu_function, NULL, 1, 1);
 }
 
 /* this function is triggered in time.c when a clock tick fires
  * we need to re-broadcast the tick to all CPUs */
-void
-smp_vic_timer_interrupt(void)
+void smp_vic_timer_interrupt(void)
 {
 	send_CPI_allbutself(VIC_TIMER_CPI);
 	smp_local_timer_interrupt();
@@ -1253,8 +1223,7 @@ smp_vic_timer_interrupt(void)
  * multiplier is 1 and it can be changed by writing the new multiplier
  * value into /proc/profile.
  */
-void
-smp_local_timer_interrupt(void)
+void smp_local_timer_interrupt(void)
 {
 	int cpu = smp_processor_id();
 	long weight;
@@ -1269,18 +1238,18 @@ smp_local_timer_interrupt(void)
 		 *
 		 * Interrupts are already masked off at this point.
 		 */
-		per_cpu(prof_counter,cpu) = per_cpu(prof_multiplier, cpu);
+		per_cpu(prof_counter, cpu) = per_cpu(prof_multiplier, cpu);
 		if (per_cpu(prof_counter, cpu) !=
-					per_cpu(prof_old_multiplier, cpu)) {
+		    per_cpu(prof_old_multiplier, cpu)) {
 			/* FIXME: need to update the vic timer tick here */
 			per_cpu(prof_old_multiplier, cpu) =
-						per_cpu(prof_counter, cpu);
+			    per_cpu(prof_counter, cpu);
 		}
 
 		update_process_times(user_mode_vm(get_irq_regs()));
 	}
 
-	if( ((1<<cpu) & voyager_extended_vic_processors) == 0)
+	if (((1 << cpu) & voyager_extended_vic_processors) == 0)
 		/* only extended VIC processors participate in
 		 * interrupt distribution */
 		return;
@@ -1296,12 +1265,12 @@ smp_local_timer_interrupt(void)
 	 * we can take more than 100K local irqs per second on a 100 MHz P5.
 	 */
 
-	if((++vic_tick[cpu] & 0x7) != 0)
+	if ((++vic_tick[cpu] & 0x7) != 0)
 		return;
 	/* get here every 16 ticks (about every 1/6 of a second) */
 
 	/* Change our priority to give someone else a chance at getting
-         * the IRQ. The algorithm goes like this:
+	 * the IRQ. The algorithm goes like this:
 	 *
 	 * In the VIC, the dynamically routed interrupt is always
 	 * handled by the lowest priority eligible (i.e. receiving
@@ -1325,18 +1294,18 @@ smp_local_timer_interrupt(void)
 	 * affinity code since we now try to even up the interrupt
 	 * counts when an affinity binding is keeping them on a
 	 * particular CPU*/
-	weight = (vic_intr_count[cpu]*voyager_extended_cpus
+	weight = (vic_intr_count[cpu] * voyager_extended_cpus
 		  - vic_intr_total) >> 4;
 	weight += 4;
-	if(weight > 7)
+	if (weight > 7)
 		weight = 7;
-	if(weight < 0)
+	if (weight < 0)
 		weight = 0;
-	
-	outb((__u8)weight, VIC_PRIORITY_REGISTER);
+
+	outb((__u8) weight, VIC_PRIORITY_REGISTER);
 
 #ifdef VOYAGER_DEBUG
-	if((vic_tick[cpu] & 0xFFF) == 0) {
+	if ((vic_tick[cpu] & 0xFFF) == 0) {
 		/* print this message roughly every 25 secs */
 		printk("VOYAGER SMP: vic_tick[%d] = %lu, weight = %ld\n",
 		       cpu, vic_tick[cpu], weight);
@@ -1345,15 +1314,14 @@ smp_local_timer_interrupt(void)
 }
 
 /* setup the profiling timer */
-int 
-setup_profiling_timer(unsigned int multiplier)
+int setup_profiling_timer(unsigned int multiplier)
 {
 	int i;
 
-	if ( (!multiplier))
+	if ((!multiplier))
 		return -EINVAL;
 
-	/* 
+	/*
 	 * Set the new multiplier for each CPU. CPUs don't start using the
 	 * new values until the next timer interrupt in which they do process
 	 * accounting.
@@ -1367,15 +1335,13 @@ setup_profiling_timer(unsigned int multiplier)
 /* This is a bit of a mess, but forced on us by the genirq changes
  * there's no genirq handler that really does what voyager wants
  * so hack it up with the simple IRQ handler */
-static void fastcall
-handle_vic_irq(unsigned int irq, struct irq_desc *desc)
+static void fastcall handle_vic_irq(unsigned int irq, struct irq_desc *desc)
 {
 	before_handle_vic_irq(irq);
 	handle_simple_irq(irq, desc);
 	after_handle_vic_irq(irq);
 }
 
-
 /*  The CPIs are handled in the per cpu 8259s, so they must be
  *  enabled to be received: FIX: enabling the CPIs in the early
  *  boot sequence interferes with bug checking; enable them later
@@ -1385,13 +1351,12 @@ handle_vic_irq(unsigned int irq, struct irq_desc *desc)
 #define QIC_SET_GATE(cpi, vector) \
 	set_intr_gate((cpi) + QIC_DEFAULT_CPI_BASE, (vector))
 
-void __init
-smp_intr_init(void)
+void __init smp_intr_init(void)
 {
 	int i;
 
 	/* initialize the per cpu irq mask to all disabled */
-	for(i = 0; i < NR_CPUS; i++)
+	for (i = 0; i < NR_CPUS; i++)
 		vic_irq_mask[i] = 0xFFFF;
 
 	VIC_SET_GATE(VIC_CPI_LEVEL0, vic_cpi_interrupt);
@@ -1404,42 +1369,40 @@ smp_intr_init(void)
 	QIC_SET_GATE(QIC_RESCHEDULE_CPI, qic_reschedule_interrupt);
 	QIC_SET_GATE(QIC_ENABLE_IRQ_CPI, qic_enable_irq_interrupt);
 	QIC_SET_GATE(QIC_CALL_FUNCTION_CPI, qic_call_function_interrupt);
-	
 
-	/* now put the VIC descriptor into the first 48 IRQs 
+	/* now put the VIC descriptor into the first 48 IRQs
 	 *
 	 * This is for later: first 16 correspond to PC IRQs; next 16
 	 * are Primary MC IRQs and final 16 are Secondary MC IRQs */
-	for(i = 0; i < 48; i++)
+	for (i = 0; i < 48; i++)
 		set_irq_chip_and_handler(i, &vic_chip, handle_vic_irq);
 }
 
 /* send a CPI at level cpi to a set of cpus in cpuset (set 1 bit per
  * processor to receive CPI */
-static void
-send_CPI(__u32 cpuset, __u8 cpi)
+static void send_CPI(__u32 cpuset, __u8 cpi)
 {
 	int cpu;
 	__u32 quad_cpuset = (cpuset & voyager_quad_processors);
 
-	if(cpi < VIC_START_FAKE_CPI) {
-		/* fake CPI are only used for booting, so send to the 
+	if (cpi < VIC_START_FAKE_CPI) {
+		/* fake CPI are only used for booting, so send to the
 		 * extended quads as well---Quads must be VIC booted */
-		outb((__u8)(cpuset), VIC_CPI_Registers[cpi]);
+		outb((__u8) (cpuset), VIC_CPI_Registers[cpi]);
 		return;
 	}
-	if(quad_cpuset)
+	if (quad_cpuset)
 		send_QIC_CPI(quad_cpuset, cpi);
 	cpuset &= ~quad_cpuset;
 	cpuset &= 0xff;		/* only first 8 CPUs vaild for VIC CPI */
-	if(cpuset == 0)
+	if (cpuset == 0)
 		return;
 	for_each_online_cpu(cpu) {
-		if(cpuset & (1<<cpu))
+		if (cpuset & (1 << cpu))
 			set_bit(cpi, &vic_cpi_mailbox[cpu]);
 	}
-	if(cpuset)
-		outb((__u8)cpuset, VIC_CPI_Registers[VIC_CPI_LEVEL0]);
+	if (cpuset)
+		outb((__u8) cpuset, VIC_CPI_Registers[VIC_CPI_LEVEL0]);
 }
 
 /* Acknowledge receipt of CPI in the QIC, clear in QIC hardware and
@@ -1448,20 +1411,19 @@ send_CPI(__u32 cpuset, __u8 cpi)
  * DON'T make this inline otherwise the cache line read will be
  * optimised away
  * */
-static int
-ack_QIC_CPI(__u8 cpi) {
+static int ack_QIC_CPI(__u8 cpi)
+{
 	__u8 cpu = hard_smp_processor_id();
 
 	cpi &= 7;
 
-	outb(1<<cpi, QIC_INTERRUPT_CLEAR1);
+	outb(1 << cpi, QIC_INTERRUPT_CLEAR1);
 	return voyager_quad_cpi_addr[cpu]->qic_cpi[cpi].cpi;
 }
 
-static void
-ack_special_QIC_CPI(__u8 cpi)
+static void ack_special_QIC_CPI(__u8 cpi)
 {
-	switch(cpi) {
+	switch (cpi) {
 	case VIC_CMN_INT:
 		outb(QIC_CMN_INT, QIC_INTERRUPT_CLEAR0);
 		break;
@@ -1474,8 +1436,7 @@ ack_special_QIC_CPI(__u8 cpi)
 }
 
 /* Acknowledge receipt of CPI in the VIC (essentially an EOI) */
-static void
-ack_VIC_CPI(__u8 cpi)
+static void ack_VIC_CPI(__u8 cpi)
 {
 #ifdef VOYAGER_DEBUG
 	unsigned long flags;
@@ -1484,17 +1445,17 @@ ack_VIC_CPI(__u8 cpi)
 
 	local_irq_save(flags);
 	isr = vic_read_isr();
-	if((isr & (1<<(cpi &7))) == 0) {
+	if ((isr & (1 << (cpi & 7))) == 0) {
 		printk("VOYAGER SMP: CPU%d lost CPI%d\n", cpu, cpi);
 	}
 #endif
 	/* send specific EOI; the two system interrupts have
 	 * bit 4 set for a separate vector but behave as the
 	 * corresponding 3 bit intr */
-	outb_p(0x60|(cpi & 7),0x20);
+	outb_p(0x60 | (cpi & 7), 0x20);
 
 #ifdef VOYAGER_DEBUG
-	if((vic_read_isr() & (1<<(cpi &7))) != 0) {
+	if ((vic_read_isr() & (1 << (cpi & 7))) != 0) {
 		printk("VOYAGER SMP: CPU%d still asserting CPI%d\n", cpu, cpi);
 	}
 	local_irq_restore(flags);
@@ -1502,12 +1463,11 @@ ack_VIC_CPI(__u8 cpi)
 }
 
 /* cribbed with thanks from irq.c */
-#define __byte(x,y) 	(((unsigned char *)&(y))[x])
+#define __byte(x,y)	(((unsigned char *)&(y))[x])
 #define cached_21(cpu)	(__byte(0,vic_irq_mask[cpu]))
 #define cached_A1(cpu)	(__byte(1,vic_irq_mask[cpu]))
 
-static unsigned int
-startup_vic_irq(unsigned int irq)
+static unsigned int startup_vic_irq(unsigned int irq)
 {
 	unmask_vic_irq(irq);
 
@@ -1535,13 +1495,12 @@ startup_vic_irq(unsigned int irq)
  *    broadcast an Interrupt enable CPI which causes all other CPUs to
  *    adjust their masks accordingly.  */
 
-static void
-unmask_vic_irq(unsigned int irq)
+static void unmask_vic_irq(unsigned int irq)
 {
 	/* linux doesn't to processor-irq affinity, so enable on
 	 * all CPUs we know about */
 	int cpu = smp_processor_id(), real_cpu;
-	__u16 mask = (1<<irq);
+	__u16 mask = (1 << irq);
 	__u32 processorList = 0;
 	unsigned long flags;
 
@@ -1549,78 +1508,72 @@ unmask_vic_irq(unsigned int irq)
 		irq, cpu, cpu_irq_affinity[cpu]));
 	spin_lock_irqsave(&vic_irq_lock, flags);
 	for_each_online_cpu(real_cpu) {
-		if(!(voyager_extended_vic_processors & (1<<real_cpu)))
+		if (!(voyager_extended_vic_processors & (1 << real_cpu)))
 			continue;
-		if(!(cpu_irq_affinity[real_cpu] & mask)) {
+		if (!(cpu_irq_affinity[real_cpu] & mask)) {
 			/* irq has no affinity for this CPU, ignore */
 			continue;
 		}
-		if(real_cpu == cpu) {
+		if (real_cpu == cpu) {
 			enable_local_vic_irq(irq);
-		}
-		else if(vic_irq_mask[real_cpu] & mask) {
+		} else if (vic_irq_mask[real_cpu] & mask) {
 			vic_irq_enable_mask[real_cpu] |= mask;
-			processorList |= (1<<real_cpu);
+			processorList |= (1 << real_cpu);
 		}
 	}
 	spin_unlock_irqrestore(&vic_irq_lock, flags);
-	if(processorList)
+	if (processorList)
 		send_CPI(processorList, VIC_ENABLE_IRQ_CPI);
 }
 
-static void
-mask_vic_irq(unsigned int irq)
+static void mask_vic_irq(unsigned int irq)
 {
 	/* lazy disable, do nothing */
 }
 
-static void
-enable_local_vic_irq(unsigned int irq)
+static void enable_local_vic_irq(unsigned int irq)
 {
 	__u8 cpu = smp_processor_id();
 	__u16 mask = ~(1 << irq);
 	__u16 old_mask = vic_irq_mask[cpu];
 
 	vic_irq_mask[cpu] &= mask;
-	if(vic_irq_mask[cpu] == old_mask)
+	if (vic_irq_mask[cpu] == old_mask)
 		return;
 
 	VDEBUG(("VOYAGER DEBUG: Enabling irq %d in hardware on CPU %d\n",
 		irq, cpu));
 
 	if (irq & 8) {
-		outb_p(cached_A1(cpu),0xA1);
+		outb_p(cached_A1(cpu), 0xA1);
 		(void)inb_p(0xA1);
-	}
-	else {
-		outb_p(cached_21(cpu),0x21);
+	} else {
+		outb_p(cached_21(cpu), 0x21);
 		(void)inb_p(0x21);
 	}
 }
 
-static void
-disable_local_vic_irq(unsigned int irq)
+static void disable_local_vic_irq(unsigned int irq)
 {
 	__u8 cpu = smp_processor_id();
 	__u16 mask = (1 << irq);
 	__u16 old_mask = vic_irq_mask[cpu];
 
-	if(irq == 7)
+	if (irq == 7)
 		return;
 
 	vic_irq_mask[cpu] |= mask;
-	if(old_mask == vic_irq_mask[cpu])
+	if (old_mask == vic_irq_mask[cpu])
 		return;
 
 	VDEBUG(("VOYAGER DEBUG: Disabling irq %d in hardware on CPU %d\n",
 		irq, cpu));
 
 	if (irq & 8) {
-		outb_p(cached_A1(cpu),0xA1);
+		outb_p(cached_A1(cpu), 0xA1);
 		(void)inb_p(0xA1);
-	}
-	else {
-		outb_p(cached_21(cpu),0x21);
+	} else {
+		outb_p(cached_21(cpu), 0x21);
 		(void)inb_p(0x21);
 	}
 }
@@ -1631,8 +1584,7 @@ disable_local_vic_irq(unsigned int irq)
  * interrupt in the vic, so we merely set a flag (IRQ_DISABLED).  If
  * this interrupt actually comes in, then we mask and ack here to push
  * the interrupt off to another CPU */
-static void
-before_handle_vic_irq(unsigned int irq)
+static void before_handle_vic_irq(unsigned int irq)
 {
 	irq_desc_t *desc = irq_desc + irq;
 	__u8 cpu = smp_processor_id();
@@ -1641,16 +1593,16 @@ before_handle_vic_irq(unsigned int irq)
 	vic_intr_total++;
 	vic_intr_count[cpu]++;
 
-	if(!(cpu_irq_affinity[cpu] & (1<<irq))) {
+	if (!(cpu_irq_affinity[cpu] & (1 << irq))) {
 		/* The irq is not in our affinity mask, push it off
 		 * onto another CPU */
-		VDEBUG(("VOYAGER DEBUG: affinity triggered disable of irq %d on cpu %d\n",
-			irq, cpu));
+		VDEBUG(("VOYAGER DEBUG: affinity triggered disable of irq %d "
+			"on cpu %d\n", irq, cpu));
 		disable_local_vic_irq(irq);
 		/* set IRQ_INPROGRESS to prevent the handler in irq.c from
 		 * actually calling the interrupt routine */
 		desc->status |= IRQ_REPLAY | IRQ_INPROGRESS;
-	} else if(desc->status & IRQ_DISABLED) {
+	} else if (desc->status & IRQ_DISABLED) {
 		/* Damn, the interrupt actually arrived, do the lazy
 		 * disable thing. The interrupt routine in irq.c will
 		 * not handle a IRQ_DISABLED interrupt, so nothing more
@@ -1667,8 +1619,7 @@ before_handle_vic_irq(unsigned int irq)
 }
 
 /* Finish the VIC interrupt: basically mask */
-static void
-after_handle_vic_irq(unsigned int irq)
+static void after_handle_vic_irq(unsigned int irq)
 {
 	irq_desc_t *desc = irq_desc + irq;
 
@@ -1685,11 +1636,11 @@ after_handle_vic_irq(unsigned int irq)
 #ifdef VOYAGER_DEBUG
 		/* DEBUG: before we ack, check what's in progress */
 		isr = vic_read_isr();
-		if((isr & (1<<irq) && !(status & IRQ_REPLAY)) == 0) {
+		if ((isr & (1 << irq) && !(status & IRQ_REPLAY)) == 0) {
 			int i;
 			__u8 cpu = smp_processor_id();
 			__u8 real_cpu;
-			int mask; /* Um... initialize me??? --RR */
+			int mask;	/* Um... initialize me??? --RR */
 
 			printk("VOYAGER SMP: CPU%d lost interrupt %d\n",
 			       cpu, irq);
@@ -1698,9 +1649,10 @@ after_handle_vic_irq(unsigned int irq)
 				outb(VIC_CPU_MASQUERADE_ENABLE | real_cpu,
 				     VIC_PROCESSOR_ID);
 				isr = vic_read_isr();
-				if(isr & (1<<irq)) {
-					printk("VOYAGER SMP: CPU%d ack irq %d\n",
-					       real_cpu, irq);
+				if (isr & (1 << irq)) {
+					printk
+					    ("VOYAGER SMP: CPU%d ack irq %d\n",
+					     real_cpu, irq);
 					ack_vic_irq(irq);
 				}
 				outb(cpu, VIC_PROCESSOR_ID);
@@ -1711,7 +1663,7 @@ after_handle_vic_irq(unsigned int irq)
 		 * receipt by another CPU so everything must be in
 		 * order here  */
 		ack_vic_irq(irq);
-		if(status & IRQ_REPLAY) {
+		if (status & IRQ_REPLAY) {
 			/* replay is set if we disable the interrupt
 			 * in the before_handle_vic_irq() routine, so
 			 * clear the in progress bit here to allow the
@@ -1720,9 +1672,9 @@ after_handle_vic_irq(unsigned int irq)
 		}
 #ifdef VOYAGER_DEBUG
 		isr = vic_read_isr();
-		if((isr & (1<<irq)) != 0)
-			printk("VOYAGER SMP: after_handle_vic_irq() after ack irq=%d, isr=0x%x\n",
-			       irq, isr);
+		if ((isr & (1 << irq)) != 0)
+			printk("VOYAGER SMP: after_handle_vic_irq() after "
+			       "ack irq=%d, isr=0x%x\n", irq, isr);
 #endif /* VOYAGER_DEBUG */
 	}
 	_raw_spin_unlock(&vic_irq_lock);
@@ -1731,7 +1683,6 @@ after_handle_vic_irq(unsigned int irq)
 	 * may be intercepted by another CPU if reasserted */
 }
 
-
 /* Linux processor - interrupt affinity manipulations.
  *
  * For each processor, we maintain a 32 bit irq affinity mask.
@@ -1748,8 +1699,7 @@ after_handle_vic_irq(unsigned int irq)
  * change the mask and then do an interrupt enable CPI to re-enable on
  * the selected processors */
 
-void
-set_vic_irq_affinity(unsigned int irq, cpumask_t mask)
+void set_vic_irq_affinity(unsigned int irq, cpumask_t mask)
 {
 	/* Only extended processors handle interrupts */
 	unsigned long real_mask;
@@ -1757,13 +1707,13 @@ set_vic_irq_affinity(unsigned int irq, cpumask_t mask)
 	int cpu;
 
 	real_mask = cpus_addr(mask)[0] & voyager_extended_vic_processors;
-	
-	if(cpus_addr(mask)[0] == 0)
+
+	if (cpus_addr(mask)[0] == 0)
 		/* can't have no CPUs to accept the interrupt -- extremely
 		 * bad things will happen */
 		return;
 
-	if(irq == 0)
+	if (irq == 0)
 		/* can't change the affinity of the timer IRQ.  This
 		 * is due to the constraint in the voyager
 		 * architecture that the CPI also comes in on and IRQ
@@ -1772,7 +1722,7 @@ set_vic_irq_affinity(unsigned int irq, cpumask_t mask)
 		 * will no-longer be able to accept VIC CPIs */
 		return;
 
-	if(irq >= 32) 
+	if (irq >= 32)
 		/* You can only have 32 interrupts in a voyager system
 		 * (and 32 only if you have a secondary microchannel
 		 * bus) */
@@ -1780,8 +1730,8 @@ set_vic_irq_affinity(unsigned int irq, cpumask_t mask)
 
 	for_each_online_cpu(cpu) {
 		unsigned long cpu_mask = 1 << cpu;
-		
-		if(cpu_mask & real_mask) {
+
+		if (cpu_mask & real_mask) {
 			/* enable the interrupt for this cpu */
 			cpu_irq_affinity[cpu] |= irq_mask;
 		} else {
@@ -1800,25 +1750,23 @@ set_vic_irq_affinity(unsigned int irq, cpumask_t mask)
 	unmask_vic_irq(irq);
 }
 
-static void
-ack_vic_irq(unsigned int irq)
+static void ack_vic_irq(unsigned int irq)
 {
 	if (irq & 8) {
-		outb(0x62,0x20);	/* Specific EOI to cascade */
-		outb(0x60|(irq & 7),0xA0);
+		outb(0x62, 0x20);	/* Specific EOI to cascade */
+		outb(0x60 | (irq & 7), 0xA0);
 	} else {
-		outb(0x60 | (irq & 7),0x20);
+		outb(0x60 | (irq & 7), 0x20);
 	}
 }
 
 /* enable the CPIs.  In the VIC, the CPIs are delivered by the 8259
  * but are not vectored by it.  This means that the 8259 mask must be
  * lowered to receive them */
-static __init void
-vic_enable_cpi(void)
+static __init void vic_enable_cpi(void)
 {
 	__u8 cpu = smp_processor_id();
-	
+
 	/* just take a copy of the current mask (nop for boot cpu) */
 	vic_irq_mask[cpu] = vic_irq_mask[boot_cpu_id];
 
@@ -1827,7 +1775,7 @@ vic_enable_cpi(void)
 	/* for sys int and cmn int */
 	enable_local_vic_irq(7);
 
-	if(is_cpu_quad()) {
+	if (is_cpu_quad()) {
 		outb(QIC_DEFAULT_MASK0, QIC_MASK_REGISTER0);
 		outb(QIC_CPI_ENABLE, QIC_MASK_REGISTER1);
 		VDEBUG(("VOYAGER SMP: QIC ENABLE CPI: CPU%d: MASK 0x%x\n",
@@ -1838,8 +1786,7 @@ vic_enable_cpi(void)
 		cpu, vic_irq_mask[cpu]));
 }
 
-void
-voyager_smp_dump()
+void voyager_smp_dump()
 {
 	int old_cpu = smp_processor_id(), cpu;
 
@@ -1865,10 +1812,10 @@ voyager_smp_dump()
 		       cpu, vic_irq_mask[cpu], imr, irr, isr);
 #if 0
 		/* These lines are put in to try to unstick an un ack'd irq */
-		if(isr != 0) {
+		if (isr != 0) {
 			int irq;
-			for(irq=0; irq<16; irq++) {
-				if(isr & (1<<irq)) {
+			for (irq = 0; irq < 16; irq++) {
+				if (isr & (1 << irq)) {
 					printk("\tCPU%d: ack irq %d\n",
 					       cpu, irq);
 					local_irq_save(flags);
@@ -1884,17 +1831,15 @@ voyager_smp_dump()
 	}
 }
 
-void
-smp_voyager_power_off(void *dummy)
+void smp_voyager_power_off(void *dummy)
 {
-	if(smp_processor_id() == boot_cpu_id) 
+	if (smp_processor_id() == boot_cpu_id)
 		voyager_power_off();
 	else
 		smp_stop_cpu_function(NULL);
 }
 
-static void __init
-voyager_smp_prepare_cpus(unsigned int max_cpus)
+static void __init voyager_smp_prepare_cpus(unsigned int max_cpus)
 {
 	/* FIXME: ignore max_cpus for now */
 	smp_boot_cpus();
@@ -1911,8 +1856,7 @@ static void __cpuinit voyager_smp_prepare_boot_cpu(void)
 	cpu_set(smp_processor_id(), cpu_present_map);
 }
 
-static int __cpuinit
-voyager_cpu_up(unsigned int cpu)
+static int __cpuinit voyager_cpu_up(unsigned int cpu)
 {
 	/* This only works at boot for x86.  See "rewrite" above. */
 	if (cpu_isset(cpu, smp_commenced_mask))
@@ -1928,14 +1872,12 @@ voyager_cpu_up(unsigned int cpu)
 	return 0;
 }
 
-static void __init
-voyager_smp_cpus_done(unsigned int max_cpus)
+static void __init voyager_smp_cpus_done(unsigned int max_cpus)
 {
 	zap_low_mappings();
 }
 
-void __init
-smp_setup_processor_id(void)
+void __init smp_setup_processor_id(void)
 {
 	current_thread_info()->cpu = hard_smp_processor_id();
 	x86_write_percpu(cpu_number, hard_smp_processor_id());
diff --git a/arch/x86/mach-voyager/voyager_thread.c b/arch/x86/mach-voyager/voyager_thread.c
index 50f9366c411e..c69c931818ed 100644
--- a/arch/x86/mach-voyager/voyager_thread.c
+++ b/arch/x86/mach-voyager/voyager_thread.c
@@ -30,12 +30,10 @@
 #include <asm/mtrr.h>
 #include <asm/msr.h>
 
-
 struct task_struct *voyager_thread;
 static __u8 set_timeout;
 
-static int
-execute(const char *string)
+static int execute(const char *string)
 {
 	int ret;
 
@@ -52,48 +50,48 @@ execute(const char *string)
 		NULL,
 	};
 
-	if ((ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC)) != 0) {
-		printk(KERN_ERR "Voyager failed to run \"%s\": %i\n",
-		       string, ret);
+	if ((ret =
+	     call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC)) != 0) {
+		printk(KERN_ERR "Voyager failed to run \"%s\": %i\n", string,
+		       ret);
 	}
 	return ret;
 }
 
-static void
-check_from_kernel(void)
+static void check_from_kernel(void)
 {
-	if(voyager_status.switch_off) {
-		
+	if (voyager_status.switch_off) {
+
 		/* FIXME: This should be configurable via proc */
 		execute("umask 600; echo 0 > /etc/initrunlvl; kill -HUP 1");
-	} else if(voyager_status.power_fail) {
+	} else if (voyager_status.power_fail) {
 		VDEBUG(("Voyager daemon detected AC power failure\n"));
-		
+
 		/* FIXME: This should be configureable via proc */
 		execute("umask 600; echo F > /etc/powerstatus; kill -PWR 1");
 		set_timeout = 1;
 	}
 }
 
-static void
-check_continuing_condition(void)
+static void check_continuing_condition(void)
 {
-	if(voyager_status.power_fail) {
+	if (voyager_status.power_fail) {
 		__u8 data;
-		voyager_cat_psi(VOYAGER_PSI_SUBREAD, 
+		voyager_cat_psi(VOYAGER_PSI_SUBREAD,
 				VOYAGER_PSI_AC_FAIL_REG, &data);
-		if((data & 0x1f) == 0) {
+		if ((data & 0x1f) == 0) {
 			/* all power restored */
-			printk(KERN_NOTICE "VOYAGER AC power restored, cancelling shutdown\n");
+			printk(KERN_NOTICE
+			       "VOYAGER AC power restored, cancelling shutdown\n");
 			/* FIXME: should be user configureable */
-			execute("umask 600; echo O > /etc/powerstatus; kill -PWR 1");
+			execute
+			    ("umask 600; echo O > /etc/powerstatus; kill -PWR 1");
 			set_timeout = 0;
 		}
 	}
 }
 
-static int
-thread(void *unused)
+static int thread(void *unused)
 {
 	printk(KERN_NOTICE "Voyager starting monitor thread\n");
 
@@ -102,7 +100,7 @@ thread(void *unused)
 		schedule_timeout(set_timeout ? HZ : MAX_SCHEDULE_TIMEOUT);
 
 		VDEBUG(("Voyager Daemon awoken\n"));
-		if(voyager_status.request_from_kernel == 0) {
+		if (voyager_status.request_from_kernel == 0) {
 			/* probably awoken from timeout */
 			check_continuing_condition();
 		} else {
@@ -112,20 +110,18 @@ thread(void *unused)
 	}
 }
 
-static int __init
-voyager_thread_start(void)
+static int __init voyager_thread_start(void)
 {
 	voyager_thread = kthread_run(thread, NULL, "kvoyagerd");
 	if (IS_ERR(voyager_thread)) {
-		printk(KERN_ERR "Voyager: Failed to create system monitor thread.\n");
+		printk(KERN_ERR
+		       "Voyager: Failed to create system monitor thread.\n");
 		return PTR_ERR(voyager_thread);
 	}
 	return 0;
 }
 
-
-static void __exit
-voyager_thread_stop(void)
+static void __exit voyager_thread_stop(void)
 {
 	kthread_stop(voyager_thread);
 }
-- 
cgit v1.2.3-59-g8ed1b


From 3d0d14f983b55a570b976976284df4c434af3223 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:30:11 +0100
Subject: x86: lindent arch/i386/math-emu

lindent these files:
                                       errors   lines of code   errors/KLOC
 arch/x86/math-emu/                      2236            9424         237.2
 arch/x86/math-emu/                       128            8706          14.7

no other changes. No code changed:

   text    data     bss     dec     hex filename
   5589802  612739 3833856 10036397         9924ad vmlinux.before
   5589802  612739 3833856 10036397         9924ad vmlinux.after

the intent of this patch is to ease the automated tracking of kernel
code quality - it's just much easier for us to maintain it if every file
in arch/x86 is supposed to be clean.

NOTE: it is a known problem of lindent that it causes some style damage
of its own, but it's a safe tool (well, except for the gcc array range
initializers extension), so we did the bulk of the changes via lindent,
and did the manual fixups in a followup patch.

the resulting math-emu code has been tested by Thomas Gleixner on a real
386 DX CPU as well, and it works fine.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/math-emu/errors.c       |  888 ++++++------
 arch/x86/math-emu/exception.h    |    9 +-
 arch/x86/math-emu/fpu_arith.c    |  150 +-
 arch/x86/math-emu/fpu_asm.h      |    1 -
 arch/x86/math-emu/fpu_aux.c      |  211 ++-
 arch/x86/math-emu/fpu_emu.h      |   77 +-
 arch/x86/math-emu/fpu_entry.c    | 1220 ++++++++--------
 arch/x86/math-emu/fpu_etc.c      |  193 ++-
 arch/x86/math-emu/fpu_proto.h    |   80 +-
 arch/x86/math-emu/fpu_tags.c     |   94 +-
 arch/x86/math-emu/fpu_trig.c     | 2922 ++++++++++++++++++--------------------
 arch/x86/math-emu/get_address.c  |  650 ++++-----
 arch/x86/math-emu/load_store.c   |  448 +++---
 arch/x86/math-emu/poly.h         |   79 +-
 arch/x86/math-emu/poly_2xm1.c    |  199 ++-
 arch/x86/math-emu/poly_atan.c    |  353 +++--
 arch/x86/math-emu/poly_l2.c      |  378 +++--
 arch/x86/math-emu/poly_sin.c     |  599 ++++----
 arch/x86/math-emu/poly_tan.c     |  338 +++--
 arch/x86/math-emu/reg_add_sub.c  |  563 ++++----
 arch/x86/math-emu/reg_compare.c  |  567 ++++----
 arch/x86/math-emu/reg_constant.c |   73 +-
 arch/x86/math-emu/reg_convert.c  |   59 +-
 arch/x86/math-emu/reg_divide.c   |  301 ++--
 arch/x86/math-emu/reg_ld_str.c   | 2187 +++++++++++++---------------
 arch/x86/math-emu/reg_mul.c      |  163 +--
 arch/x86/math-emu/status_w.h     |    8 +-
 27 files changed, 6046 insertions(+), 6764 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/math-emu/errors.c b/arch/x86/math-emu/errors.c
index a1b0d22f6978..7cb5bf3495b2 100644
--- a/arch/x86/math-emu/errors.c
+++ b/arch/x86/math-emu/errors.c
@@ -33,45 +33,41 @@
 #undef PRINT_MESSAGES
 /* */
 
-
 #if 0
 void Un_impl(void)
 {
-  u_char byte1, FPU_modrm;
-  unsigned long address = FPU_ORIG_EIP;
-
-  RE_ENTRANT_CHECK_OFF;
-  /* No need to check access_ok(), we have previously fetched these bytes. */
-  printk("Unimplemented FPU Opcode at eip=%p : ", (void __user *) address);
-  if ( FPU_CS == __USER_CS )
-    {
-      while ( 1 )
-	{
-	  FPU_get_user(byte1, (u_char __user *) address);
-	  if ( (byte1 & 0xf8) == 0xd8 ) break;
-	  printk("[%02x]", byte1);
-	  address++;
+	u_char byte1, FPU_modrm;
+	unsigned long address = FPU_ORIG_EIP;
+
+	RE_ENTRANT_CHECK_OFF;
+	/* No need to check access_ok(), we have previously fetched these bytes. */
+	printk("Unimplemented FPU Opcode at eip=%p : ", (void __user *)address);
+	if (FPU_CS == __USER_CS) {
+		while (1) {
+			FPU_get_user(byte1, (u_char __user *) address);
+			if ((byte1 & 0xf8) == 0xd8)
+				break;
+			printk("[%02x]", byte1);
+			address++;
+		}
+		printk("%02x ", byte1);
+		FPU_get_user(FPU_modrm, 1 + (u_char __user *) address);
+
+		if (FPU_modrm >= 0300)
+			printk("%02x (%02x+%d)\n", FPU_modrm, FPU_modrm & 0xf8,
+			       FPU_modrm & 7);
+		else
+			printk("/%d\n", (FPU_modrm >> 3) & 7);
+	} else {
+		printk("cs selector = %04x\n", FPU_CS);
 	}
-      printk("%02x ", byte1);
-      FPU_get_user(FPU_modrm, 1 + (u_char __user *) address);
-      
-      if (FPU_modrm >= 0300)
-	printk("%02x (%02x+%d)\n", FPU_modrm, FPU_modrm & 0xf8, FPU_modrm & 7);
-      else
-	printk("/%d\n", (FPU_modrm >> 3) & 7);
-    }
-  else
-    {
-      printk("cs selector = %04x\n", FPU_CS);
-    }
-
-  RE_ENTRANT_CHECK_ON;
-
-  EXCEPTION(EX_Invalid);
 
-}
-#endif  /*  0  */
+	RE_ENTRANT_CHECK_ON;
 
+	EXCEPTION(EX_Invalid);
+
+}
+#endif /*  0  */
 
 /*
    Called for opcodes which are illegal and which are known to result in a
@@ -79,139 +75,152 @@ void Un_impl(void)
    */
 void FPU_illegal(void)
 {
-  math_abort(FPU_info,SIGILL);
+	math_abort(FPU_info, SIGILL);
 }
 
-
-
 void FPU_printall(void)
 {
-  int i;
-  static const char *tag_desc[] = { "Valid", "Zero", "ERROR", "Empty",
-                              "DeNorm", "Inf", "NaN" };
-  u_char byte1, FPU_modrm;
-  unsigned long address = FPU_ORIG_EIP;
-
-  RE_ENTRANT_CHECK_OFF;
-  /* No need to check access_ok(), we have previously fetched these bytes. */
-  printk("At %p:", (void *) address);
-  if ( FPU_CS == __USER_CS )
-    {
+	int i;
+	static const char *tag_desc[] = { "Valid", "Zero", "ERROR", "Empty",
+		"DeNorm", "Inf", "NaN"
+	};
+	u_char byte1, FPU_modrm;
+	unsigned long address = FPU_ORIG_EIP;
+
+	RE_ENTRANT_CHECK_OFF;
+	/* No need to check access_ok(), we have previously fetched these bytes. */
+	printk("At %p:", (void *)address);
+	if (FPU_CS == __USER_CS) {
 #define MAX_PRINTED_BYTES 20
-      for ( i = 0; i < MAX_PRINTED_BYTES; i++ )
-	{
-	  FPU_get_user(byte1, (u_char __user *) address);
-	  if ( (byte1 & 0xf8) == 0xd8 )
-	    {
-	      printk(" %02x", byte1);
-	      break;
-	    }
-	  printk(" [%02x]", byte1);
-	  address++;
-	}
-      if ( i == MAX_PRINTED_BYTES )
-	printk(" [more..]\n");
-      else
-	{
-	  FPU_get_user(FPU_modrm, 1 + (u_char __user *) address);
-	  
-	  if (FPU_modrm >= 0300)
-	    printk(" %02x (%02x+%d)\n", FPU_modrm, FPU_modrm & 0xf8, FPU_modrm & 7);
-	  else
-	    printk(" /%d, mod=%d rm=%d\n",
-		   (FPU_modrm >> 3) & 7, (FPU_modrm >> 6) & 3, FPU_modrm & 7);
+		for (i = 0; i < MAX_PRINTED_BYTES; i++) {
+			FPU_get_user(byte1, (u_char __user *) address);
+			if ((byte1 & 0xf8) == 0xd8) {
+				printk(" %02x", byte1);
+				break;
+			}
+			printk(" [%02x]", byte1);
+			address++;
+		}
+		if (i == MAX_PRINTED_BYTES)
+			printk(" [more..]\n");
+		else {
+			FPU_get_user(FPU_modrm, 1 + (u_char __user *) address);
+
+			if (FPU_modrm >= 0300)
+				printk(" %02x (%02x+%d)\n", FPU_modrm,
+				       FPU_modrm & 0xf8, FPU_modrm & 7);
+			else
+				printk(" /%d, mod=%d rm=%d\n",
+				       (FPU_modrm >> 3) & 7,
+				       (FPU_modrm >> 6) & 3, FPU_modrm & 7);
+		}
+	} else {
+		printk("%04x\n", FPU_CS);
 	}
-    }
-  else
-    {
-      printk("%04x\n", FPU_CS);
-    }
 
-  partial_status = status_word();
+	partial_status = status_word();
 
 #ifdef DEBUGGING
-if ( partial_status & SW_Backward )    printk("SW: backward compatibility\n");
-if ( partial_status & SW_C3 )          printk("SW: condition bit 3\n");
-if ( partial_status & SW_C2 )          printk("SW: condition bit 2\n");
-if ( partial_status & SW_C1 )          printk("SW: condition bit 1\n");
-if ( partial_status & SW_C0 )          printk("SW: condition bit 0\n");
-if ( partial_status & SW_Summary )     printk("SW: exception summary\n");
-if ( partial_status & SW_Stack_Fault ) printk("SW: stack fault\n");
-if ( partial_status & SW_Precision )   printk("SW: loss of precision\n");
-if ( partial_status & SW_Underflow )   printk("SW: underflow\n");
-if ( partial_status & SW_Overflow )    printk("SW: overflow\n");
-if ( partial_status & SW_Zero_Div )    printk("SW: divide by zero\n");
-if ( partial_status & SW_Denorm_Op )   printk("SW: denormalized operand\n");
-if ( partial_status & SW_Invalid )     printk("SW: invalid operation\n");
+	if (partial_status & SW_Backward)
+		printk("SW: backward compatibility\n");
+	if (partial_status & SW_C3)
+		printk("SW: condition bit 3\n");
+	if (partial_status & SW_C2)
+		printk("SW: condition bit 2\n");
+	if (partial_status & SW_C1)
+		printk("SW: condition bit 1\n");
+	if (partial_status & SW_C0)
+		printk("SW: condition bit 0\n");
+	if (partial_status & SW_Summary)
+		printk("SW: exception summary\n");
+	if (partial_status & SW_Stack_Fault)
+		printk("SW: stack fault\n");
+	if (partial_status & SW_Precision)
+		printk("SW: loss of precision\n");
+	if (partial_status & SW_Underflow)
+		printk("SW: underflow\n");
+	if (partial_status & SW_Overflow)
+		printk("SW: overflow\n");
+	if (partial_status & SW_Zero_Div)
+		printk("SW: divide by zero\n");
+	if (partial_status & SW_Denorm_Op)
+		printk("SW: denormalized operand\n");
+	if (partial_status & SW_Invalid)
+		printk("SW: invalid operation\n");
 #endif /* DEBUGGING */
 
-  printk(" SW: b=%d st=%ld es=%d sf=%d cc=%d%d%d%d ef=%d%d%d%d%d%d\n",
-	 partial_status & 0x8000 ? 1 : 0,   /* busy */
-	 (partial_status & 0x3800) >> 11,   /* stack top pointer */
-	 partial_status & 0x80 ? 1 : 0,     /* Error summary status */
-	 partial_status & 0x40 ? 1 : 0,     /* Stack flag */
-	 partial_status & SW_C3?1:0, partial_status & SW_C2?1:0, /* cc */
-	 partial_status & SW_C1?1:0, partial_status & SW_C0?1:0, /* cc */
-	 partial_status & SW_Precision?1:0, partial_status & SW_Underflow?1:0,
-	 partial_status & SW_Overflow?1:0, partial_status & SW_Zero_Div?1:0,
-	 partial_status & SW_Denorm_Op?1:0, partial_status & SW_Invalid?1:0);
-  
-printk(" CW: ic=%d rc=%ld%ld pc=%ld%ld iem=%d     ef=%d%d%d%d%d%d\n",
-	 control_word & 0x1000 ? 1 : 0,
-	 (control_word & 0x800) >> 11, (control_word & 0x400) >> 10,
-	 (control_word & 0x200) >> 9, (control_word & 0x100) >> 8,
-	 control_word & 0x80 ? 1 : 0,
-	 control_word & SW_Precision?1:0, control_word & SW_Underflow?1:0,
-	 control_word & SW_Overflow?1:0, control_word & SW_Zero_Div?1:0,
-	 control_word & SW_Denorm_Op?1:0, control_word & SW_Invalid?1:0);
-
-  for ( i = 0; i < 8; i++ )
-    {
-      FPU_REG *r = &st(i);
-      u_char tagi = FPU_gettagi(i);
-      switch (tagi)
-	{
-	case TAG_Empty:
-	  continue;
-	  break;
-	case TAG_Zero:
-	case TAG_Special:
-	  tagi = FPU_Special(r);
-	case TAG_Valid:
-	  printk("st(%d)  %c .%04lx %04lx %04lx %04lx e%+-6d ", i,
-		 getsign(r) ? '-' : '+',
-		 (long)(r->sigh >> 16),
-		 (long)(r->sigh & 0xFFFF),
-		 (long)(r->sigl >> 16),
-		 (long)(r->sigl & 0xFFFF),
-		 exponent(r) - EXP_BIAS + 1);
-	  break;
-	default:
-	  printk("Whoops! Error in errors.c: tag%d is %d ", i, tagi);
-	  continue;
-	  break;
+	printk(" SW: b=%d st=%ld es=%d sf=%d cc=%d%d%d%d ef=%d%d%d%d%d%d\n", partial_status & 0x8000 ? 1 : 0,	/* busy */
+	       (partial_status & 0x3800) >> 11,	/* stack top pointer */
+	       partial_status & 0x80 ? 1 : 0,	/* Error summary status */
+	       partial_status & 0x40 ? 1 : 0,	/* Stack flag */
+	       partial_status & SW_C3 ? 1 : 0, partial_status & SW_C2 ? 1 : 0,	/* cc */
+	       partial_status & SW_C1 ? 1 : 0, partial_status & SW_C0 ? 1 : 0,	/* cc */
+	       partial_status & SW_Precision ? 1 : 0,
+	       partial_status & SW_Underflow ? 1 : 0,
+	       partial_status & SW_Overflow ? 1 : 0,
+	       partial_status & SW_Zero_Div ? 1 : 0,
+	       partial_status & SW_Denorm_Op ? 1 : 0,
+	       partial_status & SW_Invalid ? 1 : 0);
+
+	printk(" CW: ic=%d rc=%ld%ld pc=%ld%ld iem=%d     ef=%d%d%d%d%d%d\n",
+	       control_word & 0x1000 ? 1 : 0,
+	       (control_word & 0x800) >> 11, (control_word & 0x400) >> 10,
+	       (control_word & 0x200) >> 9, (control_word & 0x100) >> 8,
+	       control_word & 0x80 ? 1 : 0,
+	       control_word & SW_Precision ? 1 : 0,
+	       control_word & SW_Underflow ? 1 : 0,
+	       control_word & SW_Overflow ? 1 : 0,
+	       control_word & SW_Zero_Div ? 1 : 0,
+	       control_word & SW_Denorm_Op ? 1 : 0,
+	       control_word & SW_Invalid ? 1 : 0);
+
+	for (i = 0; i < 8; i++) {
+		FPU_REG *r = &st(i);
+		u_char tagi = FPU_gettagi(i);
+		switch (tagi) {
+		case TAG_Empty:
+			continue;
+			break;
+		case TAG_Zero:
+		case TAG_Special:
+			tagi = FPU_Special(r);
+		case TAG_Valid:
+			printk("st(%d)  %c .%04lx %04lx %04lx %04lx e%+-6d ", i,
+			       getsign(r) ? '-' : '+',
+			       (long)(r->sigh >> 16),
+			       (long)(r->sigh & 0xFFFF),
+			       (long)(r->sigl >> 16),
+			       (long)(r->sigl & 0xFFFF),
+			       exponent(r) - EXP_BIAS + 1);
+			break;
+		default:
+			printk("Whoops! Error in errors.c: tag%d is %d ", i,
+			       tagi);
+			continue;
+			break;
+		}
+		printk("%s\n", tag_desc[(int)(unsigned)tagi]);
 	}
-      printk("%s\n", tag_desc[(int) (unsigned) tagi]);
-    }
 
-  RE_ENTRANT_CHECK_ON;
+	RE_ENTRANT_CHECK_ON;
 
 }
 
 static struct {
-  int type;
-  const char *name;
+	int type;
+	const char *name;
 } exception_names[] = {
-  { EX_StackOver, "stack overflow" },
-  { EX_StackUnder, "stack underflow" },
-  { EX_Precision, "loss of precision" },
-  { EX_Underflow, "underflow" },
-  { EX_Overflow, "overflow" },
-  { EX_ZeroDiv, "divide by zero" },
-  { EX_Denormal, "denormalized operand" },
-  { EX_Invalid, "invalid operation" },
-  { EX_INTERNAL, "INTERNAL BUG in "FPU_VERSION },
-  { 0, NULL }
+	{
+	EX_StackOver, "stack overflow"}, {
+	EX_StackUnder, "stack underflow"}, {
+	EX_Precision, "loss of precision"}, {
+	EX_Underflow, "underflow"}, {
+	EX_Overflow, "overflow"}, {
+	EX_ZeroDiv, "divide by zero"}, {
+	EX_Denormal, "denormalized operand"}, {
+	EX_Invalid, "invalid operation"}, {
+	EX_INTERNAL, "INTERNAL BUG in " FPU_VERSION}, {
+	0, NULL}
 };
 
 /*
@@ -295,445 +304,386 @@ static struct {
 
 asmlinkage void FPU_exception(int n)
 {
-  int i, int_type;
-
-  int_type = 0;         /* Needed only to stop compiler warnings */
-  if ( n & EX_INTERNAL )
-    {
-      int_type = n - EX_INTERNAL;
-      n = EX_INTERNAL;
-      /* Set lots of exception bits! */
-      partial_status |= (SW_Exc_Mask | SW_Summary | SW_Backward);
-    }
-  else
-    {
-      /* Extract only the bits which we use to set the status word */
-      n &= (SW_Exc_Mask);
-      /* Set the corresponding exception bit */
-      partial_status |= n;
-      /* Set summary bits iff exception isn't masked */
-      if ( partial_status & ~control_word & CW_Exceptions )
-	partial_status |= (SW_Summary | SW_Backward);
-      if ( n & (SW_Stack_Fault | EX_Precision) )
-	{
-	  if ( !(n & SW_C1) )
-	    /* This bit distinguishes over- from underflow for a stack fault,
-	       and roundup from round-down for precision loss. */
-	    partial_status &= ~SW_C1;
+	int i, int_type;
+
+	int_type = 0;		/* Needed only to stop compiler warnings */
+	if (n & EX_INTERNAL) {
+		int_type = n - EX_INTERNAL;
+		n = EX_INTERNAL;
+		/* Set lots of exception bits! */
+		partial_status |= (SW_Exc_Mask | SW_Summary | SW_Backward);
+	} else {
+		/* Extract only the bits which we use to set the status word */
+		n &= (SW_Exc_Mask);
+		/* Set the corresponding exception bit */
+		partial_status |= n;
+		/* Set summary bits iff exception isn't masked */
+		if (partial_status & ~control_word & CW_Exceptions)
+			partial_status |= (SW_Summary | SW_Backward);
+		if (n & (SW_Stack_Fault | EX_Precision)) {
+			if (!(n & SW_C1))
+				/* This bit distinguishes over- from underflow for a stack fault,
+				   and roundup from round-down for precision loss. */
+				partial_status &= ~SW_C1;
+		}
 	}
-    }
 
-  RE_ENTRANT_CHECK_OFF;
-  if ( (~control_word & n & CW_Exceptions) || (n == EX_INTERNAL) )
-    {
+	RE_ENTRANT_CHECK_OFF;
+	if ((~control_word & n & CW_Exceptions) || (n == EX_INTERNAL)) {
 #ifdef PRINT_MESSAGES
-      /* My message from the sponsor */
-      printk(FPU_VERSION" "__DATE__" (C) W. Metzenthen.\n");
+		/* My message from the sponsor */
+		printk(FPU_VERSION " " __DATE__ " (C) W. Metzenthen.\n");
 #endif /* PRINT_MESSAGES */
-      
-      /* Get a name string for error reporting */
-      for (i=0; exception_names[i].type; i++)
-	if ( (exception_names[i].type & n) == exception_names[i].type )
-	  break;
-      
-      if (exception_names[i].type)
-	{
+
+		/* Get a name string for error reporting */
+		for (i = 0; exception_names[i].type; i++)
+			if ((exception_names[i].type & n) ==
+			    exception_names[i].type)
+				break;
+
+		if (exception_names[i].type) {
 #ifdef PRINT_MESSAGES
-	  printk("FP Exception: %s!\n", exception_names[i].name);
+			printk("FP Exception: %s!\n", exception_names[i].name);
 #endif /* PRINT_MESSAGES */
-	}
-      else
-	printk("FPU emulator: Unknown Exception: 0x%04x!\n", n);
-      
-      if ( n == EX_INTERNAL )
-	{
-	  printk("FPU emulator: Internal error type 0x%04x\n", int_type);
-	  FPU_printall();
-	}
+		} else
+			printk("FPU emulator: Unknown Exception: 0x%04x!\n", n);
+
+		if (n == EX_INTERNAL) {
+			printk("FPU emulator: Internal error type 0x%04x\n",
+			       int_type);
+			FPU_printall();
+		}
 #ifdef PRINT_MESSAGES
-      else
-	FPU_printall();
+		else
+			FPU_printall();
 #endif /* PRINT_MESSAGES */
 
-      /*
-       * The 80486 generates an interrupt on the next non-control FPU
-       * instruction. So we need some means of flagging it.
-       * We use the ES (Error Summary) bit for this.
-       */
-    }
-  RE_ENTRANT_CHECK_ON;
+		/*
+		 * The 80486 generates an interrupt on the next non-control FPU
+		 * instruction. So we need some means of flagging it.
+		 * We use the ES (Error Summary) bit for this.
+		 */
+	}
+	RE_ENTRANT_CHECK_ON;
 
 #ifdef __DEBUG__
-  math_abort(FPU_info,SIGFPE);
+	math_abort(FPU_info, SIGFPE);
 #endif /* __DEBUG__ */
 
 }
 
-
 /* Real operation attempted on a NaN. */
 /* Returns < 0 if the exception is unmasked */
-int real_1op_NaN(FPU_REG *a)
+int real_1op_NaN(FPU_REG * a)
 {
-  int signalling, isNaN;
-
-  isNaN = (exponent(a) == EXP_OVER) && (a->sigh & 0x80000000);
-
-  /* The default result for the case of two "equal" NaNs (signs may
-     differ) is chosen to reproduce 80486 behaviour */
-  signalling = isNaN && !(a->sigh & 0x40000000);
-
-  if ( !signalling )
-    {
-      if ( !isNaN )  /* pseudo-NaN, or other unsupported? */
-	{
-	  if ( control_word & CW_Invalid )
-	    {
-	      /* Masked response */
-	      reg_copy(&CONST_QNaN, a);
-	    }
-	  EXCEPTION(EX_Invalid);
-	  return (!(control_word & CW_Invalid) ? FPU_Exception : 0) | TAG_Special;
+	int signalling, isNaN;
+
+	isNaN = (exponent(a) == EXP_OVER) && (a->sigh & 0x80000000);
+
+	/* The default result for the case of two "equal" NaNs (signs may
+	   differ) is chosen to reproduce 80486 behaviour */
+	signalling = isNaN && !(a->sigh & 0x40000000);
+
+	if (!signalling) {
+		if (!isNaN) {	/* pseudo-NaN, or other unsupported? */
+			if (control_word & CW_Invalid) {
+				/* Masked response */
+				reg_copy(&CONST_QNaN, a);
+			}
+			EXCEPTION(EX_Invalid);
+			return (!(control_word & CW_Invalid) ? FPU_Exception :
+				0) | TAG_Special;
+		}
+		return TAG_Special;
 	}
-      return TAG_Special;
-    }
 
-  if ( control_word & CW_Invalid )
-    {
-      /* The masked response */
-      if ( !(a->sigh & 0x80000000) )  /* pseudo-NaN ? */
-	{
-	  reg_copy(&CONST_QNaN, a);
+	if (control_word & CW_Invalid) {
+		/* The masked response */
+		if (!(a->sigh & 0x80000000)) {	/* pseudo-NaN ? */
+			reg_copy(&CONST_QNaN, a);
+		}
+		/* ensure a Quiet NaN */
+		a->sigh |= 0x40000000;
 	}
-      /* ensure a Quiet NaN */
-      a->sigh |= 0x40000000;
-    }
 
-  EXCEPTION(EX_Invalid);
+	EXCEPTION(EX_Invalid);
 
-  return (!(control_word & CW_Invalid) ? FPU_Exception : 0) | TAG_Special;
+	return (!(control_word & CW_Invalid) ? FPU_Exception : 0) | TAG_Special;
 }
 
-
 /* Real operation attempted on two operands, one a NaN. */
 /* Returns < 0 if the exception is unmasked */
 int real_2op_NaN(FPU_REG const *b, u_char tagb,
-		 int deststnr,
-		 FPU_REG const *defaultNaN)
+		 int deststnr, FPU_REG const *defaultNaN)
 {
-  FPU_REG *dest = &st(deststnr);
-  FPU_REG const *a = dest;
-  u_char taga = FPU_gettagi(deststnr);
-  FPU_REG const *x;
-  int signalling, unsupported;
-
-  if ( taga == TAG_Special )
-    taga = FPU_Special(a);
-  if ( tagb == TAG_Special )
-    tagb = FPU_Special(b);
-
-  /* TW_NaN is also used for unsupported data types. */
-  unsupported = ((taga == TW_NaN)
-		 && !((exponent(a) == EXP_OVER) && (a->sigh & 0x80000000)))
-    || ((tagb == TW_NaN)
-	&& !((exponent(b) == EXP_OVER) && (b->sigh & 0x80000000)));
-  if ( unsupported )
-    {
-      if ( control_word & CW_Invalid )
-	{
-	  /* Masked response */
-	  FPU_copy_to_regi(&CONST_QNaN, TAG_Special, deststnr);
-	}
-      EXCEPTION(EX_Invalid);
-      return (!(control_word & CW_Invalid) ? FPU_Exception : 0) | TAG_Special;
-    }
-
-  if (taga == TW_NaN)
-    {
-      x = a;
-      if (tagb == TW_NaN)
-	{
-	  signalling = !(a->sigh & b->sigh & 0x40000000);
-	  if ( significand(b) > significand(a) )
-	    x = b;
-	  else if ( significand(b) == significand(a) )
-	    {
-	      /* The default result for the case of two "equal" NaNs (signs may
-		 differ) is chosen to reproduce 80486 behaviour */
-	      x = defaultNaN;
-	    }
-	}
-      else
-	{
-	  /* return the quiet version of the NaN in a */
-	  signalling = !(a->sigh & 0x40000000);
+	FPU_REG *dest = &st(deststnr);
+	FPU_REG const *a = dest;
+	u_char taga = FPU_gettagi(deststnr);
+	FPU_REG const *x;
+	int signalling, unsupported;
+
+	if (taga == TAG_Special)
+		taga = FPU_Special(a);
+	if (tagb == TAG_Special)
+		tagb = FPU_Special(b);
+
+	/* TW_NaN is also used for unsupported data types. */
+	unsupported = ((taga == TW_NaN)
+		       && !((exponent(a) == EXP_OVER)
+			    && (a->sigh & 0x80000000)))
+	    || ((tagb == TW_NaN)
+		&& !((exponent(b) == EXP_OVER) && (b->sigh & 0x80000000)));
+	if (unsupported) {
+		if (control_word & CW_Invalid) {
+			/* Masked response */
+			FPU_copy_to_regi(&CONST_QNaN, TAG_Special, deststnr);
+		}
+		EXCEPTION(EX_Invalid);
+		return (!(control_word & CW_Invalid) ? FPU_Exception : 0) |
+		    TAG_Special;
 	}
-    }
-  else
+
+	if (taga == TW_NaN) {
+		x = a;
+		if (tagb == TW_NaN) {
+			signalling = !(a->sigh & b->sigh & 0x40000000);
+			if (significand(b) > significand(a))
+				x = b;
+			else if (significand(b) == significand(a)) {
+				/* The default result for the case of two "equal" NaNs (signs may
+				   differ) is chosen to reproduce 80486 behaviour */
+				x = defaultNaN;
+			}
+		} else {
+			/* return the quiet version of the NaN in a */
+			signalling = !(a->sigh & 0x40000000);
+		}
+	} else
 #ifdef PARANOID
-    if (tagb == TW_NaN)
+	if (tagb == TW_NaN)
 #endif /* PARANOID */
-    {
-      signalling = !(b->sigh & 0x40000000);
-      x = b;
-    }
+	{
+		signalling = !(b->sigh & 0x40000000);
+		x = b;
+	}
 #ifdef PARANOID
-  else
-    {
-      signalling = 0;
-      EXCEPTION(EX_INTERNAL|0x113);
-      x = &CONST_QNaN;
-    }
+	else {
+		signalling = 0;
+		EXCEPTION(EX_INTERNAL | 0x113);
+		x = &CONST_QNaN;
+	}
 #endif /* PARANOID */
 
-  if ( (!signalling) || (control_word & CW_Invalid) )
-    {
-      if ( ! x )
-	x = b;
+	if ((!signalling) || (control_word & CW_Invalid)) {
+		if (!x)
+			x = b;
 
-      if ( !(x->sigh & 0x80000000) )  /* pseudo-NaN ? */
-	x = &CONST_QNaN;
+		if (!(x->sigh & 0x80000000))	/* pseudo-NaN ? */
+			x = &CONST_QNaN;
 
-      FPU_copy_to_regi(x, TAG_Special, deststnr);
+		FPU_copy_to_regi(x, TAG_Special, deststnr);
 
-      if ( !signalling )
-	return TAG_Special;
+		if (!signalling)
+			return TAG_Special;
 
-      /* ensure a Quiet NaN */
-      dest->sigh |= 0x40000000;
-    }
+		/* ensure a Quiet NaN */
+		dest->sigh |= 0x40000000;
+	}
 
-  EXCEPTION(EX_Invalid);
+	EXCEPTION(EX_Invalid);
 
-  return (!(control_word & CW_Invalid) ? FPU_Exception : 0) | TAG_Special;
+	return (!(control_word & CW_Invalid) ? FPU_Exception : 0) | TAG_Special;
 }
 
-
 /* Invalid arith operation on Valid registers */
 /* Returns < 0 if the exception is unmasked */
 asmlinkage int arith_invalid(int deststnr)
 {
 
-  EXCEPTION(EX_Invalid);
-  
-  if ( control_word & CW_Invalid )
-    {
-      /* The masked response */
-      FPU_copy_to_regi(&CONST_QNaN, TAG_Special, deststnr);
-    }
-  
-  return (!(control_word & CW_Invalid) ? FPU_Exception : 0) | TAG_Valid;
+	EXCEPTION(EX_Invalid);
 
-}
+	if (control_word & CW_Invalid) {
+		/* The masked response */
+		FPU_copy_to_regi(&CONST_QNaN, TAG_Special, deststnr);
+	}
 
+	return (!(control_word & CW_Invalid) ? FPU_Exception : 0) | TAG_Valid;
+
+}
 
 /* Divide a finite number by zero */
 asmlinkage int FPU_divide_by_zero(int deststnr, u_char sign)
 {
-  FPU_REG *dest = &st(deststnr);
-  int tag = TAG_Valid;
+	FPU_REG *dest = &st(deststnr);
+	int tag = TAG_Valid;
+
+	if (control_word & CW_ZeroDiv) {
+		/* The masked response */
+		FPU_copy_to_regi(&CONST_INF, TAG_Special, deststnr);
+		setsign(dest, sign);
+		tag = TAG_Special;
+	}
 
-  if ( control_word & CW_ZeroDiv )
-    {
-      /* The masked response */
-      FPU_copy_to_regi(&CONST_INF, TAG_Special, deststnr);
-      setsign(dest, sign);
-      tag = TAG_Special;
-    }
- 
-  EXCEPTION(EX_ZeroDiv);
+	EXCEPTION(EX_ZeroDiv);
 
-  return (!(control_word & CW_ZeroDiv) ? FPU_Exception : 0) | tag;
+	return (!(control_word & CW_ZeroDiv) ? FPU_Exception : 0) | tag;
 
 }
 
-
 /* This may be called often, so keep it lean */
 int set_precision_flag(int flags)
 {
-  if ( control_word & CW_Precision )
-    {
-      partial_status &= ~(SW_C1 & flags);
-      partial_status |= flags;   /* The masked response */
-      return 0;
-    }
-  else
-    {
-      EXCEPTION(flags);
-      return 1;
-    }
+	if (control_word & CW_Precision) {
+		partial_status &= ~(SW_C1 & flags);
+		partial_status |= flags;	/* The masked response */
+		return 0;
+	} else {
+		EXCEPTION(flags);
+		return 1;
+	}
 }
 
-
 /* This may be called often, so keep it lean */
 asmlinkage void set_precision_flag_up(void)
 {
-  if ( control_word & CW_Precision )
-    partial_status |= (SW_Precision | SW_C1);   /* The masked response */
-  else
-    EXCEPTION(EX_Precision | SW_C1);
+	if (control_word & CW_Precision)
+		partial_status |= (SW_Precision | SW_C1);	/* The masked response */
+	else
+		EXCEPTION(EX_Precision | SW_C1);
 }
 
-
 /* This may be called often, so keep it lean */
 asmlinkage void set_precision_flag_down(void)
 {
-  if ( control_word & CW_Precision )
-    {   /* The masked response */
-      partial_status &= ~SW_C1;
-      partial_status |= SW_Precision;
-    }
-  else
-    EXCEPTION(EX_Precision);
+	if (control_word & CW_Precision) {	/* The masked response */
+		partial_status &= ~SW_C1;
+		partial_status |= SW_Precision;
+	} else
+		EXCEPTION(EX_Precision);
 }
 
-
 asmlinkage int denormal_operand(void)
 {
-  if ( control_word & CW_Denormal )
-    {   /* The masked response */
-      partial_status |= SW_Denorm_Op;
-      return TAG_Special;
-    }
-  else
-    {
-      EXCEPTION(EX_Denormal);
-      return TAG_Special | FPU_Exception;
-    }
+	if (control_word & CW_Denormal) {	/* The masked response */
+		partial_status |= SW_Denorm_Op;
+		return TAG_Special;
+	} else {
+		EXCEPTION(EX_Denormal);
+		return TAG_Special | FPU_Exception;
+	}
 }
 
-
-asmlinkage int arith_overflow(FPU_REG *dest)
+asmlinkage int arith_overflow(FPU_REG * dest)
 {
-  int tag = TAG_Valid;
+	int tag = TAG_Valid;
 
-  if ( control_word & CW_Overflow )
-    {
-      /* The masked response */
+	if (control_word & CW_Overflow) {
+		/* The masked response */
 /* ###### The response here depends upon the rounding mode */
-      reg_copy(&CONST_INF, dest);
-      tag = TAG_Special;
-    }
-  else
-    {
-      /* Subtract the magic number from the exponent */
-      addexponent(dest, (-3 * (1 << 13)));
-    }
-
-  EXCEPTION(EX_Overflow);
-  if ( control_word & CW_Overflow )
-    {
-      /* The overflow exception is masked. */
-      /* By definition, precision is lost.
-	 The roundup bit (C1) is also set because we have
-	 "rounded" upwards to Infinity. */
-      EXCEPTION(EX_Precision | SW_C1);
-      return tag;
-    }
-
-  return tag;
+		reg_copy(&CONST_INF, dest);
+		tag = TAG_Special;
+	} else {
+		/* Subtract the magic number from the exponent */
+		addexponent(dest, (-3 * (1 << 13)));
+	}
 
-}
+	EXCEPTION(EX_Overflow);
+	if (control_word & CW_Overflow) {
+		/* The overflow exception is masked. */
+		/* By definition, precision is lost.
+		   The roundup bit (C1) is also set because we have
+		   "rounded" upwards to Infinity. */
+		EXCEPTION(EX_Precision | SW_C1);
+		return tag;
+	}
 
+	return tag;
 
-asmlinkage int arith_underflow(FPU_REG *dest)
-{
-  int tag = TAG_Valid;
+}
 
-  if ( control_word & CW_Underflow )
-    {
-      /* The masked response */
-      if ( exponent16(dest) <= EXP_UNDER - 63 )
-	{
-	  reg_copy(&CONST_Z, dest);
-	  partial_status &= ~SW_C1;       /* Round down. */
-	  tag = TAG_Zero;
+asmlinkage int arith_underflow(FPU_REG * dest)
+{
+	int tag = TAG_Valid;
+
+	if (control_word & CW_Underflow) {
+		/* The masked response */
+		if (exponent16(dest) <= EXP_UNDER - 63) {
+			reg_copy(&CONST_Z, dest);
+			partial_status &= ~SW_C1;	/* Round down. */
+			tag = TAG_Zero;
+		} else {
+			stdexp(dest);
+		}
+	} else {
+		/* Add the magic number to the exponent. */
+		addexponent(dest, (3 * (1 << 13)) + EXTENDED_Ebias);
 	}
-      else
-	{
-	  stdexp(dest);
+
+	EXCEPTION(EX_Underflow);
+	if (control_word & CW_Underflow) {
+		/* The underflow exception is masked. */
+		EXCEPTION(EX_Precision);
+		return tag;
 	}
-    }
-  else
-    {
-      /* Add the magic number to the exponent. */
-      addexponent(dest, (3 * (1 << 13)) + EXTENDED_Ebias);
-    }
-
-  EXCEPTION(EX_Underflow);
-  if ( control_word & CW_Underflow )
-    {
-      /* The underflow exception is masked. */
-      EXCEPTION(EX_Precision);
-      return tag;
-    }
-
-  return tag;
 
-}
+	return tag;
 
+}
 
 void FPU_stack_overflow(void)
 {
 
- if ( control_word & CW_Invalid )
-    {
-      /* The masked response */
-      top--;
-      FPU_copy_to_reg0(&CONST_QNaN, TAG_Special);
-    }
+	if (control_word & CW_Invalid) {
+		/* The masked response */
+		top--;
+		FPU_copy_to_reg0(&CONST_QNaN, TAG_Special);
+	}
 
-  EXCEPTION(EX_StackOver);
+	EXCEPTION(EX_StackOver);
 
-  return;
+	return;
 
 }
 
-
 void FPU_stack_underflow(void)
 {
 
- if ( control_word & CW_Invalid )
-    {
-      /* The masked response */
-      FPU_copy_to_reg0(&CONST_QNaN, TAG_Special);
-    }
+	if (control_word & CW_Invalid) {
+		/* The masked response */
+		FPU_copy_to_reg0(&CONST_QNaN, TAG_Special);
+	}
 
-  EXCEPTION(EX_StackUnder);
+	EXCEPTION(EX_StackUnder);
 
-  return;
+	return;
 
 }
 
-
 void FPU_stack_underflow_i(int i)
 {
 
- if ( control_word & CW_Invalid )
-    {
-      /* The masked response */
-      FPU_copy_to_regi(&CONST_QNaN, TAG_Special, i);
-    }
+	if (control_word & CW_Invalid) {
+		/* The masked response */
+		FPU_copy_to_regi(&CONST_QNaN, TAG_Special, i);
+	}
 
-  EXCEPTION(EX_StackUnder);
+	EXCEPTION(EX_StackUnder);
 
-  return;
+	return;
 
 }
 
-
 void FPU_stack_underflow_pop(int i)
 {
 
- if ( control_word & CW_Invalid )
-    {
-      /* The masked response */
-      FPU_copy_to_regi(&CONST_QNaN, TAG_Special, i);
-      FPU_pop();
-    }
+	if (control_word & CW_Invalid) {
+		/* The masked response */
+		FPU_copy_to_regi(&CONST_QNaN, TAG_Special, i);
+		FPU_pop();
+	}
 
-  EXCEPTION(EX_StackUnder);
+	EXCEPTION(EX_StackUnder);
 
-  return;
+	return;
 
 }
-
diff --git a/arch/x86/math-emu/exception.h b/arch/x86/math-emu/exception.h
index b463f21a811e..67f43a4683d5 100644
--- a/arch/x86/math-emu/exception.h
+++ b/arch/x86/math-emu/exception.h
@@ -9,7 +9,6 @@
 #ifndef _EXCEPTION_H_
 #define _EXCEPTION_H_
 
-
 #ifdef __ASSEMBLY__
 #define	Const_(x)	$##x
 #else
@@ -20,8 +19,8 @@
 #include "fpu_emu.h"
 #endif /* SW_C1 */
 
-#define FPU_BUSY        Const_(0x8000)   /* FPU busy bit (8087 compatibility) */
-#define EX_ErrorSummary Const_(0x0080)   /* Error summary status */
+#define FPU_BUSY        Const_(0x8000)	/* FPU busy bit (8087 compatibility) */
+#define EX_ErrorSummary Const_(0x0080)	/* Error summary status */
 /* Special exceptions: */
 #define	EX_INTERNAL	Const_(0x8000)	/* Internal error in wm-FPU-emu */
 #define EX_StackOver	Const_(0x0041|SW_C1)	/* stack overflow */
@@ -34,11 +33,9 @@
 #define EX_Denormal	Const_(0x0002)	/* denormalized operand */
 #define EX_Invalid	Const_(0x0001)	/* invalid operation */
 
-
 #define PRECISION_LOST_UP    Const_((EX_Precision | SW_C1))
 #define PRECISION_LOST_DOWN  Const_(EX_Precision)
 
-
 #ifndef __ASSEMBLY__
 
 #ifdef DEBUG
@@ -48,6 +45,6 @@
 #define	EXCEPTION(x)	FPU_exception(x)
 #endif
 
-#endif /* __ASSEMBLY__ */ 
+#endif /* __ASSEMBLY__ */
 
 #endif /* _EXCEPTION_H_ */
diff --git a/arch/x86/math-emu/fpu_arith.c b/arch/x86/math-emu/fpu_arith.c
index 6972dec01af6..aeab24e083c4 100644
--- a/arch/x86/math-emu/fpu_arith.c
+++ b/arch/x86/math-emu/fpu_arith.c
@@ -15,160 +15,138 @@
 #include "control_w.h"
 #include "status_w.h"
 
-
 void fadd__(void)
 {
-  /* fadd st,st(i) */
-  int i = FPU_rm;
-  clear_C1();
-  FPU_add(&st(i), FPU_gettagi(i), 0, control_word);
+	/* fadd st,st(i) */
+	int i = FPU_rm;
+	clear_C1();
+	FPU_add(&st(i), FPU_gettagi(i), 0, control_word);
 }
 
-
 void fmul__(void)
 {
-  /* fmul st,st(i) */
-  int i = FPU_rm;
-  clear_C1();
-  FPU_mul(&st(i), FPU_gettagi(i), 0, control_word);
+	/* fmul st,st(i) */
+	int i = FPU_rm;
+	clear_C1();
+	FPU_mul(&st(i), FPU_gettagi(i), 0, control_word);
 }
 
-
-
 void fsub__(void)
 {
-  /* fsub st,st(i) */
-  clear_C1();
-  FPU_sub(0, FPU_rm, control_word);
+	/* fsub st,st(i) */
+	clear_C1();
+	FPU_sub(0, FPU_rm, control_word);
 }
 
-
 void fsubr_(void)
 {
-  /* fsubr st,st(i) */
-  clear_C1();
-  FPU_sub(REV, FPU_rm, control_word);
+	/* fsubr st,st(i) */
+	clear_C1();
+	FPU_sub(REV, FPU_rm, control_word);
 }
 
-
 void fdiv__(void)
 {
-  /* fdiv st,st(i) */
-  clear_C1();
-  FPU_div(0, FPU_rm, control_word);
+	/* fdiv st,st(i) */
+	clear_C1();
+	FPU_div(0, FPU_rm, control_word);
 }
 
-
 void fdivr_(void)
 {
-  /* fdivr st,st(i) */
-  clear_C1();
-  FPU_div(REV, FPU_rm, control_word);
+	/* fdivr st,st(i) */
+	clear_C1();
+	FPU_div(REV, FPU_rm, control_word);
 }
 
-
-
 void fadd_i(void)
 {
-  /* fadd st(i),st */
-  int i = FPU_rm;
-  clear_C1();
-  FPU_add(&st(i), FPU_gettagi(i), i, control_word);
+	/* fadd st(i),st */
+	int i = FPU_rm;
+	clear_C1();
+	FPU_add(&st(i), FPU_gettagi(i), i, control_word);
 }
 
-
 void fmul_i(void)
 {
-  /* fmul st(i),st */
-  clear_C1();
-  FPU_mul(&st(0), FPU_gettag0(), FPU_rm, control_word);
+	/* fmul st(i),st */
+	clear_C1();
+	FPU_mul(&st(0), FPU_gettag0(), FPU_rm, control_word);
 }
 
-
 void fsubri(void)
 {
-  /* fsubr st(i),st */
-  clear_C1();
-  FPU_sub(DEST_RM, FPU_rm, control_word);
+	/* fsubr st(i),st */
+	clear_C1();
+	FPU_sub(DEST_RM, FPU_rm, control_word);
 }
 
-
 void fsub_i(void)
 {
-  /* fsub st(i),st */
-  clear_C1();
-  FPU_sub(REV|DEST_RM, FPU_rm, control_word);
+	/* fsub st(i),st */
+	clear_C1();
+	FPU_sub(REV | DEST_RM, FPU_rm, control_word);
 }
 
-
 void fdivri(void)
 {
-  /* fdivr st(i),st */
-  clear_C1();
-  FPU_div(DEST_RM, FPU_rm, control_word);
+	/* fdivr st(i),st */
+	clear_C1();
+	FPU_div(DEST_RM, FPU_rm, control_word);
 }
 
-
 void fdiv_i(void)
 {
-  /* fdiv st(i),st */
-  clear_C1();
-  FPU_div(REV|DEST_RM, FPU_rm, control_word);
+	/* fdiv st(i),st */
+	clear_C1();
+	FPU_div(REV | DEST_RM, FPU_rm, control_word);
 }
 
-
-
 void faddp_(void)
 {
-  /* faddp st(i),st */
-  int i = FPU_rm;
-  clear_C1();
-  if ( FPU_add(&st(i), FPU_gettagi(i), i, control_word) >= 0 )
-    FPU_pop();
+	/* faddp st(i),st */
+	int i = FPU_rm;
+	clear_C1();
+	if (FPU_add(&st(i), FPU_gettagi(i), i, control_word) >= 0)
+		FPU_pop();
 }
 
-
 void fmulp_(void)
 {
-  /* fmulp st(i),st */
-  clear_C1();
-  if ( FPU_mul(&st(0), FPU_gettag0(), FPU_rm, control_word) >= 0 )
-    FPU_pop();
+	/* fmulp st(i),st */
+	clear_C1();
+	if (FPU_mul(&st(0), FPU_gettag0(), FPU_rm, control_word) >= 0)
+		FPU_pop();
 }
 
-
-
 void fsubrp(void)
 {
-  /* fsubrp st(i),st */
-  clear_C1();
-  if ( FPU_sub(DEST_RM, FPU_rm, control_word) >= 0 )
-    FPU_pop();
+	/* fsubrp st(i),st */
+	clear_C1();
+	if (FPU_sub(DEST_RM, FPU_rm, control_word) >= 0)
+		FPU_pop();
 }
 
-
 void fsubp_(void)
 {
-  /* fsubp st(i),st */
-  clear_C1();
-  if ( FPU_sub(REV|DEST_RM, FPU_rm, control_word) >= 0 )
-    FPU_pop();
+	/* fsubp st(i),st */
+	clear_C1();
+	if (FPU_sub(REV | DEST_RM, FPU_rm, control_word) >= 0)
+		FPU_pop();
 }
 
-
 void fdivrp(void)
 {
-  /* fdivrp st(i),st */
-  clear_C1();
-  if ( FPU_div(DEST_RM, FPU_rm, control_word) >= 0 )
-    FPU_pop();
+	/* fdivrp st(i),st */
+	clear_C1();
+	if (FPU_div(DEST_RM, FPU_rm, control_word) >= 0)
+		FPU_pop();
 }
 
-
 void fdivp_(void)
 {
-  /* fdivp st(i),st */
-  clear_C1();
-  if ( FPU_div(REV|DEST_RM, FPU_rm, control_word) >= 0 )
-    FPU_pop();
+	/* fdivp st(i),st */
+	clear_C1();
+	if (FPU_div(REV | DEST_RM, FPU_rm, control_word) >= 0)
+		FPU_pop();
 }
diff --git a/arch/x86/math-emu/fpu_asm.h b/arch/x86/math-emu/fpu_asm.h
index 9ba12416df12..955b932735a4 100644
--- a/arch/x86/math-emu/fpu_asm.h
+++ b/arch/x86/math-emu/fpu_asm.h
@@ -14,7 +14,6 @@
 
 #define	EXCEPTION	FPU_exception
 
-
 #define PARAM1	8(%ebp)
 #define	PARAM2	12(%ebp)
 #define	PARAM3	16(%ebp)
diff --git a/arch/x86/math-emu/fpu_aux.c b/arch/x86/math-emu/fpu_aux.c
index 20886cfb9f76..491e737ce547 100644
--- a/arch/x86/math-emu/fpu_aux.c
+++ b/arch/x86/math-emu/fpu_aux.c
@@ -16,34 +16,34 @@
 #include "status_w.h"
 #include "control_w.h"
 
-
 static void fnop(void)
 {
 }
 
 static void fclex(void)
 {
-  partial_status &= ~(SW_Backward|SW_Summary|SW_Stack_Fault|SW_Precision|
-		   SW_Underflow|SW_Overflow|SW_Zero_Div|SW_Denorm_Op|
-		   SW_Invalid);
-  no_ip_update = 1;
+	partial_status &=
+	    ~(SW_Backward | SW_Summary | SW_Stack_Fault | SW_Precision |
+	      SW_Underflow | SW_Overflow | SW_Zero_Div | SW_Denorm_Op |
+	      SW_Invalid);
+	no_ip_update = 1;
 }
 
 /* Needs to be externally visible */
 void finit(void)
 {
-  control_word = 0x037f;
-  partial_status = 0;
-  top = 0;            /* We don't keep top in the status word internally. */
-  fpu_tag_word = 0xffff;
-  /* The behaviour is different from that detailed in
-     Section 15.1.6 of the Intel manual */
-  operand_address.offset = 0;
-  operand_address.selector = 0;
-  instruction_address.offset = 0;
-  instruction_address.selector = 0;
-  instruction_address.opcode = 0;
-  no_ip_update = 1;
+	control_word = 0x037f;
+	partial_status = 0;
+	top = 0;		/* We don't keep top in the status word internally. */
+	fpu_tag_word = 0xffff;
+	/* The behaviour is different from that detailed in
+	   Section 15.1.6 of the Intel manual */
+	operand_address.offset = 0;
+	operand_address.selector = 0;
+	instruction_address.offset = 0;
+	instruction_address.selector = 0;
+	instruction_address.opcode = 0;
+	no_ip_update = 1;
 }
 
 /*
@@ -54,151 +54,134 @@ void finit(void)
 #define fsetpm fnop
 
 static FUNC const finit_table[] = {
-  feni, fdisi, fclex, finit,
-  fsetpm, FPU_illegal, FPU_illegal, FPU_illegal
+	feni, fdisi, fclex, finit,
+	fsetpm, FPU_illegal, FPU_illegal, FPU_illegal
 };
 
 void finit_(void)
 {
-  (finit_table[FPU_rm])();
+	(finit_table[FPU_rm]) ();
 }
 
-
 static void fstsw_ax(void)
 {
-  *(short *) &FPU_EAX = status_word();
-  no_ip_update = 1;
+	*(short *)&FPU_EAX = status_word();
+	no_ip_update = 1;
 }
 
 static FUNC const fstsw_table[] = {
-  fstsw_ax, FPU_illegal, FPU_illegal, FPU_illegal,
-  FPU_illegal, FPU_illegal, FPU_illegal, FPU_illegal
+	fstsw_ax, FPU_illegal, FPU_illegal, FPU_illegal,
+	FPU_illegal, FPU_illegal, FPU_illegal, FPU_illegal
 };
 
 void fstsw_(void)
 {
-  (fstsw_table[FPU_rm])();
+	(fstsw_table[FPU_rm]) ();
 }
 
-
 static FUNC const fp_nop_table[] = {
-  fnop, FPU_illegal, FPU_illegal, FPU_illegal,
-  FPU_illegal, FPU_illegal, FPU_illegal, FPU_illegal
+	fnop, FPU_illegal, FPU_illegal, FPU_illegal,
+	FPU_illegal, FPU_illegal, FPU_illegal, FPU_illegal
 };
 
 void fp_nop(void)
 {
-  (fp_nop_table[FPU_rm])();
+	(fp_nop_table[FPU_rm]) ();
 }
 
-
 void fld_i_(void)
 {
-  FPU_REG *st_new_ptr;
-  int i;
-  u_char tag;
-
-  if ( STACK_OVERFLOW )
-    { FPU_stack_overflow(); return; }
-
-  /* fld st(i) */
-  i = FPU_rm;
-  if ( NOT_EMPTY(i) )
-    {
-      reg_copy(&st(i), st_new_ptr);
-      tag = FPU_gettagi(i);
-      push();
-      FPU_settag0(tag);
-    }
-  else
-    {
-      if ( control_word & CW_Invalid )
-	{
-	  /* The masked response */
-	  FPU_stack_underflow();
+	FPU_REG *st_new_ptr;
+	int i;
+	u_char tag;
+
+	if (STACK_OVERFLOW) {
+		FPU_stack_overflow();
+		return;
 	}
-      else
-	EXCEPTION(EX_StackUnder);
-    }
 
-}
+	/* fld st(i) */
+	i = FPU_rm;
+	if (NOT_EMPTY(i)) {
+		reg_copy(&st(i), st_new_ptr);
+		tag = FPU_gettagi(i);
+		push();
+		FPU_settag0(tag);
+	} else {
+		if (control_word & CW_Invalid) {
+			/* The masked response */
+			FPU_stack_underflow();
+		} else
+			EXCEPTION(EX_StackUnder);
+	}
 
+}
 
 void fxch_i(void)
 {
-  /* fxch st(i) */
-  FPU_REG t;
-  int i = FPU_rm;
-  FPU_REG *st0_ptr = &st(0), *sti_ptr = &st(i);
-  long tag_word = fpu_tag_word;
-  int regnr = top & 7, regnri = ((regnr + i) & 7);
-  u_char st0_tag = (tag_word >> (regnr*2)) & 3;
-  u_char sti_tag = (tag_word >> (regnri*2)) & 3;
-
-  if ( st0_tag == TAG_Empty )
-    {
-      if ( sti_tag == TAG_Empty )
-	{
-	  FPU_stack_underflow();
-	  FPU_stack_underflow_i(i);
-	  return;
+	/* fxch st(i) */
+	FPU_REG t;
+	int i = FPU_rm;
+	FPU_REG *st0_ptr = &st(0), *sti_ptr = &st(i);
+	long tag_word = fpu_tag_word;
+	int regnr = top & 7, regnri = ((regnr + i) & 7);
+	u_char st0_tag = (tag_word >> (regnr * 2)) & 3;
+	u_char sti_tag = (tag_word >> (regnri * 2)) & 3;
+
+	if (st0_tag == TAG_Empty) {
+		if (sti_tag == TAG_Empty) {
+			FPU_stack_underflow();
+			FPU_stack_underflow_i(i);
+			return;
+		}
+		if (control_word & CW_Invalid) {
+			/* Masked response */
+			FPU_copy_to_reg0(sti_ptr, sti_tag);
+		}
+		FPU_stack_underflow_i(i);
+		return;
 	}
-      if ( control_word & CW_Invalid )
-	{
-	  /* Masked response */
-	  FPU_copy_to_reg0(sti_ptr, sti_tag);
+	if (sti_tag == TAG_Empty) {
+		if (control_word & CW_Invalid) {
+			/* Masked response */
+			FPU_copy_to_regi(st0_ptr, st0_tag, i);
+		}
+		FPU_stack_underflow();
+		return;
 	}
-      FPU_stack_underflow_i(i);
-      return;
-    }
-  if ( sti_tag == TAG_Empty )
-    {
-      if ( control_word & CW_Invalid )
-	{
-	  /* Masked response */
-	  FPU_copy_to_regi(st0_ptr, st0_tag, i);
-	}
-      FPU_stack_underflow();
-      return;
-    }
-  clear_C1();
-
-  reg_copy(st0_ptr, &t);
-  reg_copy(sti_ptr, st0_ptr);
-  reg_copy(&t, sti_ptr);
-
-  tag_word &= ~(3 << (regnr*2)) & ~(3 << (regnri*2));
-  tag_word |= (sti_tag << (regnr*2)) | (st0_tag << (regnri*2));
-  fpu_tag_word = tag_word;
-}
+	clear_C1();
 
+	reg_copy(st0_ptr, &t);
+	reg_copy(sti_ptr, st0_ptr);
+	reg_copy(&t, sti_ptr);
+
+	tag_word &= ~(3 << (regnr * 2)) & ~(3 << (regnri * 2));
+	tag_word |= (sti_tag << (regnr * 2)) | (st0_tag << (regnri * 2));
+	fpu_tag_word = tag_word;
+}
 
 void ffree_(void)
 {
-  /* ffree st(i) */
-  FPU_settagi(FPU_rm, TAG_Empty);
+	/* ffree st(i) */
+	FPU_settagi(FPU_rm, TAG_Empty);
 }
 
-
 void ffreep(void)
 {
-  /* ffree st(i) + pop - unofficial code */
-  FPU_settagi(FPU_rm, TAG_Empty);
-  FPU_pop();
+	/* ffree st(i) + pop - unofficial code */
+	FPU_settagi(FPU_rm, TAG_Empty);
+	FPU_pop();
 }
 
-
 void fst_i_(void)
 {
-  /* fst st(i) */
-  FPU_copy_to_regi(&st(0), FPU_gettag0(), FPU_rm);
+	/* fst st(i) */
+	FPU_copy_to_regi(&st(0), FPU_gettag0(), FPU_rm);
 }
 
-
 void fstp_i(void)
 {
-  /* fstp st(i) */
-  FPU_copy_to_regi(&st(0), FPU_gettag0(), FPU_rm);
-  FPU_pop();
+	/* fstp st(i) */
+	FPU_copy_to_regi(&st(0), FPU_gettag0(), FPU_rm);
+	FPU_pop();
 }
-
diff --git a/arch/x86/math-emu/fpu_emu.h b/arch/x86/math-emu/fpu_emu.h
index 65120f523853..656dd4c04b1b 100644
--- a/arch/x86/math-emu/fpu_emu.h
+++ b/arch/x86/math-emu/fpu_emu.h
@@ -7,7 +7,6 @@
  |                                                                           |
  +---------------------------------------------------------------------------*/
 
-
 #ifndef _FPU_EMU_H_
 #define _FPU_EMU_H_
 
@@ -28,15 +27,15 @@
 #endif
 
 #define EXP_BIAS	Const(0)
-#define EXP_OVER	Const(0x4000)    /* smallest invalid large exponent */
-#define	EXP_UNDER	Const(-0x3fff)   /* largest invalid small exponent */
-#define EXP_WAY_UNDER   Const(-0x6000)   /* Below the smallest denormal, but
-					    still a 16 bit nr. */
+#define EXP_OVER	Const(0x4000)	/* smallest invalid large exponent */
+#define	EXP_UNDER	Const(-0x3fff)	/* largest invalid small exponent */
+#define EXP_WAY_UNDER   Const(-0x6000)	/* Below the smallest denormal, but
+					   still a 16 bit nr. */
 #define EXP_Infinity    EXP_OVER
 #define EXP_NaN         EXP_OVER
 
 #define EXTENDED_Ebias Const(0x3fff)
-#define EXTENDED_Emin (-0x3ffe)  /* smallest valid exponent */
+#define EXTENDED_Emin (-0x3ffe)	/* smallest valid exponent */
 
 #define SIGN_POS	Const(0)
 #define SIGN_NEG	Const(0x80)
@@ -44,10 +43,9 @@
 #define SIGN_Positive	Const(0)
 #define SIGN_Negative	Const(0x8000)
 
-
 /* Keep the order TAG_Valid, TAG_Zero, TW_Denormal */
 /* The following fold to 2 (Special) in the Tag Word */
-#define TW_Denormal     Const(4)        /* De-normal */
+#define TW_Denormal     Const(4)	/* De-normal */
 #define TW_Infinity	Const(5)	/* + or - infinity */
 #define	TW_NaN		Const(6)	/* Not a Number */
 #define	TW_Unsupported	Const(7)	/* Not supported by an 80486 */
@@ -67,14 +65,13 @@
 #define DEST_RM         0x20
 #define LOADED          0x40
 
-#define FPU_Exception   Const(0x80000000)   /* Added to tag returns. */
-
+#define FPU_Exception   Const(0x80000000)	/* Added to tag returns. */
 
 #ifndef __ASSEMBLY__
 
 #include "fpu_system.h"
 
-#include <asm/sigcontext.h>   /* for struct _fpstate */
+#include <asm/sigcontext.h>	/* for struct _fpstate */
 #include <asm/math_emu.h>
 #include <linux/linkage.h>
 
@@ -112,30 +109,33 @@ extern u_char emulating;
 #define PREFIX_DEFAULT 7
 
 struct address {
-  unsigned int offset;
-  unsigned int selector:16;
-  unsigned int opcode:11;
-  unsigned int empty:5;
+	unsigned int offset;
+	unsigned int selector:16;
+	unsigned int opcode:11;
+	unsigned int empty:5;
 };
 struct fpu__reg {
-  unsigned sigl;
-  unsigned sigh;
-  short exp;
+	unsigned sigl;
+	unsigned sigh;
+	short exp;
 };
 
-typedef void (*FUNC)(void);
+typedef void (*FUNC) (void);
 typedef struct fpu__reg FPU_REG;
-typedef void (*FUNC_ST0)(FPU_REG *st0_ptr, u_char st0_tag);
-typedef struct { u_char address_size, operand_size, segment; }
-        overrides;
+typedef void (*FUNC_ST0) (FPU_REG * st0_ptr, u_char st0_tag);
+typedef struct {
+	u_char address_size, operand_size, segment;
+} overrides;
 /* This structure is 32 bits: */
-typedef struct { overrides override;
-		 u_char default_mode; } fpu_addr_modes;
+typedef struct {
+	overrides override;
+	u_char default_mode;
+} fpu_addr_modes;
 /* PROTECTED has a restricted meaning in the emulator; it is used
    to signal that the emulator needs to do special things to ensure
    that protection is respected in a segmented model. */
 #define PROTECTED 4
-#define SIXTEEN   1         /* We rely upon this being 1 (true) */
+#define SIXTEEN   1		/* We rely upon this being 1 (true) */
 #define VM86      SIXTEEN
 #define PM16      (SIXTEEN | PROTECTED)
 #define SEG32     PROTECTED
@@ -166,10 +166,10 @@ extern u_char const data_sizes_16[32];
 #define signpositive(a) ( (signbyte(a) & 0x80) == 0 )
 #define signnegative(a) (signbyte(a) & 0x80)
 
-static inline void reg_copy(FPU_REG const *x, FPU_REG *y)
+static inline void reg_copy(FPU_REG const *x, FPU_REG * y)
 {
-  *(short *)&(y->exp) = *(const short *)&(x->exp); 
-  *(long long *)&(y->sigl) = *(const long long *)&(x->sigl);
+	*(short *)&(y->exp) = *(const short *)&(x->exp);
+	*(long long *)&(y->sigl) = *(const long long *)&(x->sigl);
 }
 
 #define exponent(x)  (((*(short *)&((x)->exp)) & 0x7fff) - EXTENDED_Ebias)
@@ -184,29 +184,28 @@ static inline void reg_copy(FPU_REG const *x, FPU_REG *y)
 
 #define significand(x) ( ((unsigned long long *)&((x)->sigl))[0] )
 
-
 /*----- Prototypes for functions written in assembler -----*/
 /* extern void reg_move(FPU_REG *a, FPU_REG *b); */
 
-asmlinkage int FPU_normalize(FPU_REG *x);
-asmlinkage int FPU_normalize_nuo(FPU_REG *x);
+asmlinkage int FPU_normalize(FPU_REG * x);
+asmlinkage int FPU_normalize_nuo(FPU_REG * x);
 asmlinkage int FPU_u_sub(FPU_REG const *arg1, FPU_REG const *arg2,
-			 FPU_REG *answ, unsigned int control_w, u_char sign,
+			 FPU_REG * answ, unsigned int control_w, u_char sign,
 			 int expa, int expb);
 asmlinkage int FPU_u_mul(FPU_REG const *arg1, FPU_REG const *arg2,
-			 FPU_REG *answ, unsigned int control_w, u_char sign,
+			 FPU_REG * answ, unsigned int control_w, u_char sign,
 			 int expon);
 asmlinkage int FPU_u_div(FPU_REG const *arg1, FPU_REG const *arg2,
-			 FPU_REG *answ, unsigned int control_w, u_char sign);
+			 FPU_REG * answ, unsigned int control_w, u_char sign);
 asmlinkage int FPU_u_add(FPU_REG const *arg1, FPU_REG const *arg2,
-			 FPU_REG *answ, unsigned int control_w, u_char sign,
+			 FPU_REG * answ, unsigned int control_w, u_char sign,
 			 int expa, int expb);
-asmlinkage int wm_sqrt(FPU_REG *n, int dummy1, int dummy2,
+asmlinkage int wm_sqrt(FPU_REG * n, int dummy1, int dummy2,
 		       unsigned int control_w, u_char sign);
-asmlinkage unsigned	FPU_shrx(void *l, unsigned x);
-asmlinkage unsigned	FPU_shrxs(void *v, unsigned x);
+asmlinkage unsigned FPU_shrx(void *l, unsigned x);
+asmlinkage unsigned FPU_shrxs(void *v, unsigned x);
 asmlinkage unsigned long FPU_div_small(unsigned long long *x, unsigned long y);
-asmlinkage int FPU_round(FPU_REG *arg, unsigned int extent, int dummy,
+asmlinkage int FPU_round(FPU_REG * arg, unsigned int extent, int dummy,
 			 unsigned int control_w, u_char sign);
 
 #ifndef MAKING_PROTO
diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index 1853524c8b57..cbb8717f09fd 100644
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -36,726 +36,720 @@
 #include "control_w.h"
 #include "status_w.h"
 
-#define __BAD__ FPU_illegal   /* Illegal on an 80486, causes SIGILL */
+#define __BAD__ FPU_illegal	/* Illegal on an 80486, causes SIGILL */
 
-#ifndef NO_UNDOC_CODE    /* Un-documented FPU op-codes supported by default. */
+#ifndef NO_UNDOC_CODE		/* Un-documented FPU op-codes supported by default. */
 
 /* WARNING: These codes are not documented by Intel in their 80486 manual
    and may not work on FPU clones or later Intel FPUs. */
 
 /* Changes to support the un-doc codes provided by Linus Torvalds. */
 
-#define _d9_d8_ fstp_i    /* unofficial code (19) */
-#define _dc_d0_ fcom_st   /* unofficial code (14) */
-#define _dc_d8_ fcompst   /* unofficial code (1c) */
-#define _dd_c8_ fxch_i    /* unofficial code (0d) */
-#define _de_d0_ fcompst   /* unofficial code (16) */
-#define _df_c0_ ffreep    /* unofficial code (07) ffree + pop */
-#define _df_c8_ fxch_i    /* unofficial code (0f) */
-#define _df_d0_ fstp_i    /* unofficial code (17) */
-#define _df_d8_ fstp_i    /* unofficial code (1f) */
+#define _d9_d8_ fstp_i		/* unofficial code (19) */
+#define _dc_d0_ fcom_st		/* unofficial code (14) */
+#define _dc_d8_ fcompst		/* unofficial code (1c) */
+#define _dd_c8_ fxch_i		/* unofficial code (0d) */
+#define _de_d0_ fcompst		/* unofficial code (16) */
+#define _df_c0_ ffreep		/* unofficial code (07) ffree + pop */
+#define _df_c8_ fxch_i		/* unofficial code (0f) */
+#define _df_d0_ fstp_i		/* unofficial code (17) */
+#define _df_d8_ fstp_i		/* unofficial code (1f) */
 
 static FUNC const st_instr_table[64] = {
-  fadd__,   fld_i_,     __BAD__, __BAD__, fadd_i,  ffree_,  faddp_,  _df_c0_,
-  fmul__,   fxch_i,     __BAD__, __BAD__, fmul_i,  _dd_c8_, fmulp_,  _df_c8_,
-  fcom_st,  fp_nop,     __BAD__, __BAD__, _dc_d0_, fst_i_,  _de_d0_, _df_d0_,
-  fcompst,  _d9_d8_,    __BAD__, __BAD__, _dc_d8_, fstp_i,  fcompp,  _df_d8_,
-  fsub__,   FPU_etc,    __BAD__, finit_,  fsubri,  fucom_,  fsubrp,  fstsw_,
-  fsubr_,   fconst,     fucompp, __BAD__, fsub_i,  fucomp,  fsubp_,  __BAD__,
-  fdiv__,   FPU_triga,  __BAD__, __BAD__, fdivri,  __BAD__, fdivrp,  __BAD__,
-  fdivr_,   FPU_trigb,  __BAD__, __BAD__, fdiv_i,  __BAD__, fdivp_,  __BAD__,
+	fadd__, fld_i_, __BAD__, __BAD__, fadd_i, ffree_, faddp_, _df_c0_,
+	fmul__, fxch_i, __BAD__, __BAD__, fmul_i, _dd_c8_, fmulp_, _df_c8_,
+	fcom_st, fp_nop, __BAD__, __BAD__, _dc_d0_, fst_i_, _de_d0_, _df_d0_,
+	fcompst, _d9_d8_, __BAD__, __BAD__, _dc_d8_, fstp_i, fcompp, _df_d8_,
+	fsub__, FPU_etc, __BAD__, finit_, fsubri, fucom_, fsubrp, fstsw_,
+	fsubr_, fconst, fucompp, __BAD__, fsub_i, fucomp, fsubp_, __BAD__,
+	fdiv__, FPU_triga, __BAD__, __BAD__, fdivri, __BAD__, fdivrp, __BAD__,
+	fdivr_, FPU_trigb, __BAD__, __BAD__, fdiv_i, __BAD__, fdivp_, __BAD__,
 };
 
-#else     /* Support only documented FPU op-codes */
+#else /* Support only documented FPU op-codes */
 
 static FUNC const st_instr_table[64] = {
-  fadd__,   fld_i_,     __BAD__, __BAD__, fadd_i,  ffree_,  faddp_,  __BAD__,
-  fmul__,   fxch_i,     __BAD__, __BAD__, fmul_i,  __BAD__, fmulp_,  __BAD__,
-  fcom_st,  fp_nop,     __BAD__, __BAD__, __BAD__, fst_i_,  __BAD__, __BAD__,
-  fcompst,  __BAD__,    __BAD__, __BAD__, __BAD__, fstp_i,  fcompp,  __BAD__,
-  fsub__,   FPU_etc,    __BAD__, finit_,  fsubri,  fucom_,  fsubrp,  fstsw_,
-  fsubr_,   fconst,     fucompp, __BAD__, fsub_i,  fucomp,  fsubp_,  __BAD__,
-  fdiv__,   FPU_triga,  __BAD__, __BAD__, fdivri,  __BAD__, fdivrp,  __BAD__,
-  fdivr_,   FPU_trigb,  __BAD__, __BAD__, fdiv_i,  __BAD__, fdivp_,  __BAD__,
+	fadd__, fld_i_, __BAD__, __BAD__, fadd_i, ffree_, faddp_, __BAD__,
+	fmul__, fxch_i, __BAD__, __BAD__, fmul_i, __BAD__, fmulp_, __BAD__,
+	fcom_st, fp_nop, __BAD__, __BAD__, __BAD__, fst_i_, __BAD__, __BAD__,
+	fcompst, __BAD__, __BAD__, __BAD__, __BAD__, fstp_i, fcompp, __BAD__,
+	fsub__, FPU_etc, __BAD__, finit_, fsubri, fucom_, fsubrp, fstsw_,
+	fsubr_, fconst, fucompp, __BAD__, fsub_i, fucomp, fsubp_, __BAD__,
+	fdiv__, FPU_triga, __BAD__, __BAD__, fdivri, __BAD__, fdivrp, __BAD__,
+	fdivr_, FPU_trigb, __BAD__, __BAD__, fdiv_i, __BAD__, fdivp_, __BAD__,
 };
 
 #endif /* NO_UNDOC_CODE */
 
-
-#define _NONE_ 0   /* Take no special action */
-#define _REG0_ 1   /* Need to check for not empty st(0) */
-#define _REGI_ 2   /* Need to check for not empty st(0) and st(rm) */
-#define _REGi_ 0   /* Uses st(rm) */
-#define _PUSH_ 3   /* Need to check for space to push onto stack */
-#define _null_ 4   /* Function illegal or not implemented */
-#define _REGIi 5   /* Uses st(0) and st(rm), result to st(rm) */
-#define _REGIp 6   /* Uses st(0) and st(rm), result to st(rm) then pop */
-#define _REGIc 0   /* Compare st(0) and st(rm) */
-#define _REGIn 0   /* Uses st(0) and st(rm), but handle checks later */
+#define _NONE_ 0		/* Take no special action */
+#define _REG0_ 1		/* Need to check for not empty st(0) */
+#define _REGI_ 2		/* Need to check for not empty st(0) and st(rm) */
+#define _REGi_ 0		/* Uses st(rm) */
+#define _PUSH_ 3		/* Need to check for space to push onto stack */
+#define _null_ 4		/* Function illegal or not implemented */
+#define _REGIi 5		/* Uses st(0) and st(rm), result to st(rm) */
+#define _REGIp 6		/* Uses st(0) and st(rm), result to st(rm) then pop */
+#define _REGIc 0		/* Compare st(0) and st(rm) */
+#define _REGIn 0		/* Uses st(0) and st(rm), but handle checks later */
 
 #ifndef NO_UNDOC_CODE
 
 /* Un-documented FPU op-codes supported by default. (see above) */
 
 static u_char const type_table[64] = {
-  _REGI_, _NONE_, _null_, _null_, _REGIi, _REGi_, _REGIp, _REGi_,
-  _REGI_, _REGIn, _null_, _null_, _REGIi, _REGI_, _REGIp, _REGI_,
-  _REGIc, _NONE_, _null_, _null_, _REGIc, _REG0_, _REGIc, _REG0_,
-  _REGIc, _REG0_, _null_, _null_, _REGIc, _REG0_, _REGIc, _REG0_,
-  _REGI_, _NONE_, _null_, _NONE_, _REGIi, _REGIc, _REGIp, _NONE_,
-  _REGI_, _NONE_, _REGIc, _null_, _REGIi, _REGIc, _REGIp, _null_,
-  _REGI_, _NONE_, _null_, _null_, _REGIi, _null_, _REGIp, _null_,
-  _REGI_, _NONE_, _null_, _null_, _REGIi, _null_, _REGIp, _null_
+	_REGI_, _NONE_, _null_, _null_, _REGIi, _REGi_, _REGIp, _REGi_,
+	_REGI_, _REGIn, _null_, _null_, _REGIi, _REGI_, _REGIp, _REGI_,
+	_REGIc, _NONE_, _null_, _null_, _REGIc, _REG0_, _REGIc, _REG0_,
+	_REGIc, _REG0_, _null_, _null_, _REGIc, _REG0_, _REGIc, _REG0_,
+	_REGI_, _NONE_, _null_, _NONE_, _REGIi, _REGIc, _REGIp, _NONE_,
+	_REGI_, _NONE_, _REGIc, _null_, _REGIi, _REGIc, _REGIp, _null_,
+	_REGI_, _NONE_, _null_, _null_, _REGIi, _null_, _REGIp, _null_,
+	_REGI_, _NONE_, _null_, _null_, _REGIi, _null_, _REGIp, _null_
 };
 
-#else     /* Support only documented FPU op-codes */
+#else /* Support only documented FPU op-codes */
 
 static u_char const type_table[64] = {
-  _REGI_, _NONE_, _null_, _null_, _REGIi, _REGi_, _REGIp, _null_,
-  _REGI_, _REGIn, _null_, _null_, _REGIi, _null_, _REGIp, _null_,
-  _REGIc, _NONE_, _null_, _null_, _null_, _REG0_, _null_, _null_,
-  _REGIc, _null_, _null_, _null_, _null_, _REG0_, _REGIc, _null_,
-  _REGI_, _NONE_, _null_, _NONE_, _REGIi, _REGIc, _REGIp, _NONE_,
-  _REGI_, _NONE_, _REGIc, _null_, _REGIi, _REGIc, _REGIp, _null_,
-  _REGI_, _NONE_, _null_, _null_, _REGIi, _null_, _REGIp, _null_,
-  _REGI_, _NONE_, _null_, _null_, _REGIi, _null_, _REGIp, _null_
+	_REGI_, _NONE_, _null_, _null_, _REGIi, _REGi_, _REGIp, _null_,
+	_REGI_, _REGIn, _null_, _null_, _REGIi, _null_, _REGIp, _null_,
+	_REGIc, _NONE_, _null_, _null_, _null_, _REG0_, _null_, _null_,
+	_REGIc, _null_, _null_, _null_, _null_, _REG0_, _REGIc, _null_,
+	_REGI_, _NONE_, _null_, _NONE_, _REGIi, _REGIc, _REGIp, _NONE_,
+	_REGI_, _NONE_, _REGIc, _null_, _REGIi, _REGIc, _REGIp, _null_,
+	_REGI_, _NONE_, _null_, _null_, _REGIi, _null_, _REGIp, _null_,
+	_REGI_, _NONE_, _null_, _null_, _REGIi, _null_, _REGIp, _null_
 };
 
 #endif /* NO_UNDOC_CODE */
 
-
 #ifdef RE_ENTRANT_CHECKING
-u_char emulating=0;
+u_char emulating = 0;
 #endif /* RE_ENTRANT_CHECKING */
 
-static int valid_prefix(u_char *Byte, u_char __user **fpu_eip,
-			overrides *override);
+static int valid_prefix(u_char * Byte, u_char __user ** fpu_eip,
+			overrides * override);
 
 asmlinkage void math_emulate(long arg)
 {
-  u_char  FPU_modrm, byte1;
-  unsigned short code;
-  fpu_addr_modes addr_modes;
-  int unmasked;
-  FPU_REG loaded_data;
-  FPU_REG *st0_ptr;
-  u_char	  loaded_tag, st0_tag;
-  void __user *data_address;
-  struct address data_sel_off;
-  struct address entry_sel_off;
-  unsigned long code_base = 0;
-  unsigned long code_limit = 0;  /* Initialized to stop compiler warnings */
-  struct desc_struct code_descriptor;
+	u_char FPU_modrm, byte1;
+	unsigned short code;
+	fpu_addr_modes addr_modes;
+	int unmasked;
+	FPU_REG loaded_data;
+	FPU_REG *st0_ptr;
+	u_char loaded_tag, st0_tag;
+	void __user *data_address;
+	struct address data_sel_off;
+	struct address entry_sel_off;
+	unsigned long code_base = 0;
+	unsigned long code_limit = 0;	/* Initialized to stop compiler warnings */
+	struct desc_struct code_descriptor;
 
 #ifdef RE_ENTRANT_CHECKING
-  if ( emulating )
-    {
-      printk("ERROR: wm-FPU-emu is not RE-ENTRANT!\n");
-    }
-  RE_ENTRANT_CHECK_ON;
+	if (emulating) {
+		printk("ERROR: wm-FPU-emu is not RE-ENTRANT!\n");
+	}
+	RE_ENTRANT_CHECK_ON;
 #endif /* RE_ENTRANT_CHECKING */
 
-  if (!used_math())
-    {
-      finit();
-      set_used_math();
-    }
-
-  SETUP_DATA_AREA(arg);
-
-  FPU_ORIG_EIP = FPU_EIP;
-
-  if ( (FPU_EFLAGS & 0x00020000) != 0 )
-    {
-      /* Virtual 8086 mode */
-      addr_modes.default_mode = VM86;
-      FPU_EIP += code_base = FPU_CS << 4;
-      code_limit = code_base + 0xffff;  /* Assumes code_base <= 0xffff0000 */
-    }
-  else if ( FPU_CS == __USER_CS && FPU_DS == __USER_DS )
-    {
-      addr_modes.default_mode = 0;
-    }
-  else if ( FPU_CS == __KERNEL_CS )
-    {
-      printk("math_emulate: %04x:%08lx\n",FPU_CS,FPU_EIP);
-      panic("Math emulation needed in kernel");
-    }
-  else
-    {
-
-      if ( (FPU_CS & 4) != 4 )   /* Must be in the LDT */
-	{
-	  /* Can only handle segmented addressing via the LDT
-	     for now, and it must be 16 bit */
-	  printk("FPU emulator: Unsupported addressing mode\n");
-	  math_abort(FPU_info, SIGILL);
+	if (!used_math()) {
+		finit();
+		set_used_math();
 	}
 
-      code_descriptor = LDT_DESCRIPTOR(FPU_CS);
-      if ( SEG_D_SIZE(code_descriptor) )
-	{
-	  /* The above test may be wrong, the book is not clear */
-	  /* Segmented 32 bit protected mode */
-	  addr_modes.default_mode = SEG32;
+	SETUP_DATA_AREA(arg);
+
+	FPU_ORIG_EIP = FPU_EIP;
+
+	if ((FPU_EFLAGS & 0x00020000) != 0) {
+		/* Virtual 8086 mode */
+		addr_modes.default_mode = VM86;
+		FPU_EIP += code_base = FPU_CS << 4;
+		code_limit = code_base + 0xffff;	/* Assumes code_base <= 0xffff0000 */
+	} else if (FPU_CS == __USER_CS && FPU_DS == __USER_DS) {
+		addr_modes.default_mode = 0;
+	} else if (FPU_CS == __KERNEL_CS) {
+		printk("math_emulate: %04x:%08lx\n", FPU_CS, FPU_EIP);
+		panic("Math emulation needed in kernel");
+	} else {
+
+		if ((FPU_CS & 4) != 4) {	/* Must be in the LDT */
+			/* Can only handle segmented addressing via the LDT
+			   for now, and it must be 16 bit */
+			printk("FPU emulator: Unsupported addressing mode\n");
+			math_abort(FPU_info, SIGILL);
+		}
+
+		code_descriptor = LDT_DESCRIPTOR(FPU_CS);
+		if (SEG_D_SIZE(code_descriptor)) {
+			/* The above test may be wrong, the book is not clear */
+			/* Segmented 32 bit protected mode */
+			addr_modes.default_mode = SEG32;
+		} else {
+			/* 16 bit protected mode */
+			addr_modes.default_mode = PM16;
+		}
+		FPU_EIP += code_base = SEG_BASE_ADDR(code_descriptor);
+		code_limit = code_base
+		    + (SEG_LIMIT(code_descriptor) +
+		       1) * SEG_GRANULARITY(code_descriptor)
+		    - 1;
+		if (code_limit < code_base)
+			code_limit = 0xffffffff;
 	}
-      else
-	{
-	  /* 16 bit protected mode */
-	  addr_modes.default_mode = PM16;
+
+	FPU_lookahead = 1;
+	if (current->ptrace & PT_PTRACED)
+		FPU_lookahead = 0;
+
+	if (!valid_prefix(&byte1, (u_char __user **) & FPU_EIP,
+			  &addr_modes.override)) {
+		RE_ENTRANT_CHECK_OFF;
+		printk
+		    ("FPU emulator: Unknown prefix byte 0x%02x, probably due to\n"
+		     "FPU emulator: self-modifying code! (emulation impossible)\n",
+		     byte1);
+		RE_ENTRANT_CHECK_ON;
+		EXCEPTION(EX_INTERNAL | 0x126);
+		math_abort(FPU_info, SIGILL);
 	}
-      FPU_EIP += code_base = SEG_BASE_ADDR(code_descriptor);
-      code_limit = code_base
-	+ (SEG_LIMIT(code_descriptor)+1) * SEG_GRANULARITY(code_descriptor)
-	  - 1;
-      if ( code_limit < code_base ) code_limit = 0xffffffff;
-    }
-
-  FPU_lookahead = 1;
-  if (current->ptrace & PT_PTRACED)
-    FPU_lookahead = 0;
-
-  if ( !valid_prefix(&byte1, (u_char __user **)&FPU_EIP,
-		     &addr_modes.override) )
-    {
-      RE_ENTRANT_CHECK_OFF;
-      printk("FPU emulator: Unknown prefix byte 0x%02x, probably due to\n"
-	     "FPU emulator: self-modifying code! (emulation impossible)\n",
-	     byte1);
-      RE_ENTRANT_CHECK_ON;
-      EXCEPTION(EX_INTERNAL|0x126);
-      math_abort(FPU_info,SIGILL);
-    }
-
-do_another_FPU_instruction:
-
-  no_ip_update = 0;
-
-  FPU_EIP++;  /* We have fetched the prefix and first code bytes. */
-
-  if ( addr_modes.default_mode )
-    {
-      /* This checks for the minimum instruction bytes.
-	 We also need to check any extra (address mode) code access. */
-      if ( FPU_EIP > code_limit )
-	math_abort(FPU_info,SIGSEGV);
-    }
-
-  if ( (byte1 & 0xf8) != 0xd8 )
-    {
-      if ( byte1 == FWAIT_OPCODE )
-	{
-	  if (partial_status & SW_Summary)
-	    goto do_the_FPU_interrupt;
-	  else
-	    goto FPU_fwait_done;
+
+      do_another_FPU_instruction:
+
+	no_ip_update = 0;
+
+	FPU_EIP++;		/* We have fetched the prefix and first code bytes. */
+
+	if (addr_modes.default_mode) {
+		/* This checks for the minimum instruction bytes.
+		   We also need to check any extra (address mode) code access. */
+		if (FPU_EIP > code_limit)
+			math_abort(FPU_info, SIGSEGV);
 	}
+
+	if ((byte1 & 0xf8) != 0xd8) {
+		if (byte1 == FWAIT_OPCODE) {
+			if (partial_status & SW_Summary)
+				goto do_the_FPU_interrupt;
+			else
+				goto FPU_fwait_done;
+		}
 #ifdef PARANOID
-      EXCEPTION(EX_INTERNAL|0x128);
-      math_abort(FPU_info,SIGILL);
+		EXCEPTION(EX_INTERNAL | 0x128);
+		math_abort(FPU_info, SIGILL);
 #endif /* PARANOID */
-    }
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_code_access_ok(1);
-  FPU_get_user(FPU_modrm, (u_char __user *) FPU_EIP);
-  RE_ENTRANT_CHECK_ON;
-  FPU_EIP++;
-
-  if (partial_status & SW_Summary)
-    {
-      /* Ignore the error for now if the current instruction is a no-wait
-	 control instruction */
-      /* The 80486 manual contradicts itself on this topic,
-	 but a real 80486 uses the following instructions:
-	 fninit, fnstenv, fnsave, fnstsw, fnstenv, fnclex.
-       */
-      code = (FPU_modrm << 8) | byte1;
-      if ( ! ( (((code & 0xf803) == 0xe003) ||    /* fnclex, fninit, fnstsw */
-		(((code & 0x3003) == 0x3001) &&   /* fnsave, fnstcw, fnstenv,
-						     fnstsw */
-		 ((code & 0xc000) != 0xc000))) ) )
-	{
-	  /*
-	   *  We need to simulate the action of the kernel to FPU
-	   *  interrupts here.
-	   */
-	do_the_FPU_interrupt:
-
-	  FPU_EIP = FPU_ORIG_EIP;	/* Point to current FPU instruction. */
-
-	  RE_ENTRANT_CHECK_OFF;
-	  current->thread.trap_no = 16;
-	  current->thread.error_code = 0;
-	  send_sig(SIGFPE, current, 1);
-	  return;
-	}
-    }
-
-  entry_sel_off.offset = FPU_ORIG_EIP;
-  entry_sel_off.selector = FPU_CS;
-  entry_sel_off.opcode = (byte1 << 8) | FPU_modrm;
-
-  FPU_rm = FPU_modrm & 7;
-
-  if ( FPU_modrm < 0300 )
-    {
-      /* All of these instructions use the mod/rm byte to get a data address */
-
-      if ( (addr_modes.default_mode & SIXTEEN)
-	  ^ (addr_modes.override.address_size == ADDR_SIZE_PREFIX) )
-	data_address = FPU_get_address_16(FPU_modrm, &FPU_EIP, &data_sel_off,
-					  addr_modes);
-      else
-	data_address = FPU_get_address(FPU_modrm, &FPU_EIP, &data_sel_off,
-				       addr_modes);
-
-      if ( addr_modes.default_mode )
-	{
-	  if ( FPU_EIP-1 > code_limit )
-	    math_abort(FPU_info,SIGSEGV);
 	}
 
-      if ( !(byte1 & 1) )
-	{
-	  unsigned short status1 = partial_status;
-
-	  st0_ptr = &st(0);
-	  st0_tag = FPU_gettag0();
-
-	  /* Stack underflow has priority */
-	  if ( NOT_EMPTY_ST0 )
-	    {
-	      if ( addr_modes.default_mode & PROTECTED )
-		{
-		  /* This table works for 16 and 32 bit protected mode */
-		  if ( access_limit < data_sizes_16[(byte1 >> 1) & 3] )
-		    math_abort(FPU_info,SIGSEGV);
+	RE_ENTRANT_CHECK_OFF;
+	FPU_code_access_ok(1);
+	FPU_get_user(FPU_modrm, (u_char __user *) FPU_EIP);
+	RE_ENTRANT_CHECK_ON;
+	FPU_EIP++;
+
+	if (partial_status & SW_Summary) {
+		/* Ignore the error for now if the current instruction is a no-wait
+		   control instruction */
+		/* The 80486 manual contradicts itself on this topic,
+		   but a real 80486 uses the following instructions:
+		   fninit, fnstenv, fnsave, fnstsw, fnstenv, fnclex.
+		 */
+		code = (FPU_modrm << 8) | byte1;
+		if (!((((code & 0xf803) == 0xe003) ||	/* fnclex, fninit, fnstsw */
+		       (((code & 0x3003) == 0x3001) &&	/* fnsave, fnstcw, fnstenv,
+							   fnstsw */
+			((code & 0xc000) != 0xc000))))) {
+			/*
+			 *  We need to simulate the action of the kernel to FPU
+			 *  interrupts here.
+			 */
+		      do_the_FPU_interrupt:
+
+			FPU_EIP = FPU_ORIG_EIP;	/* Point to current FPU instruction. */
+
+			RE_ENTRANT_CHECK_OFF;
+			current->thread.trap_no = 16;
+			current->thread.error_code = 0;
+			send_sig(SIGFPE, current, 1);
+			return;
 		}
+	}
 
-	      unmasked = 0;  /* Do this here to stop compiler warnings. */
-	      switch ( (byte1 >> 1) & 3 )
-		{
-		case 0:
-		  unmasked = FPU_load_single((float __user *)data_address,
-					     &loaded_data);
-		  loaded_tag = unmasked & 0xff;
-		  unmasked &= ~0xff;
-		  break;
-		case 1:
-		  loaded_tag = FPU_load_int32((long __user *)data_address, &loaded_data);
-		  break;
-		case 2:
-		  unmasked = FPU_load_double((double __user *)data_address,
-					     &loaded_data);
-		  loaded_tag = unmasked & 0xff;
-		  unmasked &= ~0xff;
-		  break;
-		case 3:
-		default:  /* Used here to suppress gcc warnings. */
-		  loaded_tag = FPU_load_int16((short __user *)data_address, &loaded_data);
-		  break;
-		}
+	entry_sel_off.offset = FPU_ORIG_EIP;
+	entry_sel_off.selector = FPU_CS;
+	entry_sel_off.opcode = (byte1 << 8) | FPU_modrm;
 
-	      /* No more access to user memory, it is safe
-		 to use static data now */
-
-	      /* NaN operands have the next priority. */
-	      /* We have to delay looking at st(0) until after
-		 loading the data, because that data might contain an SNaN */
-	      if ( ((st0_tag == TAG_Special) && isNaN(st0_ptr)) ||
-		  ((loaded_tag == TAG_Special) && isNaN(&loaded_data)) )
-		{
-		  /* Restore the status word; we might have loaded a
-		     denormal. */
-		  partial_status = status1;
-		  if ( (FPU_modrm & 0x30) == 0x10 )
-		    {
-		      /* fcom or fcomp */
-		      EXCEPTION(EX_Invalid);
-		      setcc(SW_C3 | SW_C2 | SW_C0);
-		      if ( (FPU_modrm & 0x08) && (control_word & CW_Invalid) )
-			FPU_pop();             /* fcomp, masked, so we pop. */
-		    }
-		  else
-		    {
-		      if ( loaded_tag == TAG_Special )
-			loaded_tag = FPU_Special(&loaded_data);
-#ifdef PECULIAR_486
-		      /* This is not really needed, but gives behaviour
-			 identical to an 80486 */
-		      if ( (FPU_modrm & 0x28) == 0x20 )
-			/* fdiv or fsub */
-			real_2op_NaN(&loaded_data, loaded_tag, 0, &loaded_data);
-		      else
-#endif /* PECULIAR_486 */ 
-			/* fadd, fdivr, fmul, or fsubr */
-			real_2op_NaN(&loaded_data, loaded_tag, 0, st0_ptr);
-		    }
-		  goto reg_mem_instr_done;
-		}
+	FPU_rm = FPU_modrm & 7;
 
-	      if ( unmasked && !((FPU_modrm & 0x30) == 0x10) )
-		{
-		  /* Is not a comparison instruction. */
-		  if ( (FPU_modrm & 0x38) == 0x38 )
-		    {
-		      /* fdivr */
-		      if ( (st0_tag == TAG_Zero) &&
-			   ((loaded_tag == TAG_Valid)
-			    || (loaded_tag == TAG_Special
-				&& isdenormal(&loaded_data))) )
-			{
-			  if ( FPU_divide_by_zero(0, getsign(&loaded_data))
-			       < 0 )
-			    {
-			      /* We use the fact here that the unmasked
-				 exception in the loaded data was for a
-				 denormal operand */
-			      /* Restore the state of the denormal op bit */
-			      partial_status &= ~SW_Denorm_Op;
-			      partial_status |= status1 & SW_Denorm_Op;
-			    }
-			  else
-			    setsign(st0_ptr, getsign(&loaded_data));
-			}
-		    }
-		  goto reg_mem_instr_done;
-		}
+	if (FPU_modrm < 0300) {
+		/* All of these instructions use the mod/rm byte to get a data address */
 
-	      switch ( (FPU_modrm >> 3) & 7 )
-		{
-		case 0:         /* fadd */
-		  clear_C1();
-		  FPU_add(&loaded_data, loaded_tag, 0, control_word);
-		  break;
-		case 1:         /* fmul */
-		  clear_C1();
-		  FPU_mul(&loaded_data, loaded_tag, 0, control_word);
-		  break;
-		case 2:         /* fcom */
-		  FPU_compare_st_data(&loaded_data, loaded_tag);
-		  break;
-		case 3:         /* fcomp */
-		  if ( !FPU_compare_st_data(&loaded_data, loaded_tag)
-		       && !unmasked )
-		    FPU_pop();
-		  break;
-		case 4:         /* fsub */
-		  clear_C1();
-		  FPU_sub(LOADED|loaded_tag, (int)&loaded_data, control_word);
-		  break;
-		case 5:         /* fsubr */
-		  clear_C1();
-		  FPU_sub(REV|LOADED|loaded_tag, (int)&loaded_data, control_word);
-		  break;
-		case 6:         /* fdiv */
-		  clear_C1();
-		  FPU_div(LOADED|loaded_tag, (int)&loaded_data, control_word);
-		  break;
-		case 7:         /* fdivr */
-		  clear_C1();
-		  if ( st0_tag == TAG_Zero )
-		    partial_status = status1;  /* Undo any denorm tag,
-						  zero-divide has priority. */
-		  FPU_div(REV|LOADED|loaded_tag, (int)&loaded_data, control_word);
-		  break;
+		if ((addr_modes.default_mode & SIXTEEN)
+		    ^ (addr_modes.override.address_size == ADDR_SIZE_PREFIX))
+			data_address =
+			    FPU_get_address_16(FPU_modrm, &FPU_EIP,
+					       &data_sel_off, addr_modes);
+		else
+			data_address =
+			    FPU_get_address(FPU_modrm, &FPU_EIP, &data_sel_off,
+					    addr_modes);
+
+		if (addr_modes.default_mode) {
+			if (FPU_EIP - 1 > code_limit)
+				math_abort(FPU_info, SIGSEGV);
 		}
-	    }
-	  else
-	    {
-	      if ( (FPU_modrm & 0x30) == 0x10 )
-		{
-		  /* The instruction is fcom or fcomp */
-		  EXCEPTION(EX_StackUnder);
-		  setcc(SW_C3 | SW_C2 | SW_C0);
-		  if ( (FPU_modrm & 0x08) && (control_word & CW_Invalid) )
-		    FPU_pop();             /* fcomp */
+
+		if (!(byte1 & 1)) {
+			unsigned short status1 = partial_status;
+
+			st0_ptr = &st(0);
+			st0_tag = FPU_gettag0();
+
+			/* Stack underflow has priority */
+			if (NOT_EMPTY_ST0) {
+				if (addr_modes.default_mode & PROTECTED) {
+					/* This table works for 16 and 32 bit protected mode */
+					if (access_limit <
+					    data_sizes_16[(byte1 >> 1) & 3])
+						math_abort(FPU_info, SIGSEGV);
+				}
+
+				unmasked = 0;	/* Do this here to stop compiler warnings. */
+				switch ((byte1 >> 1) & 3) {
+				case 0:
+					unmasked =
+					    FPU_load_single((float __user *)
+							    data_address,
+							    &loaded_data);
+					loaded_tag = unmasked & 0xff;
+					unmasked &= ~0xff;
+					break;
+				case 1:
+					loaded_tag =
+					    FPU_load_int32((long __user *)
+							   data_address,
+							   &loaded_data);
+					break;
+				case 2:
+					unmasked =
+					    FPU_load_double((double __user *)
+							    data_address,
+							    &loaded_data);
+					loaded_tag = unmasked & 0xff;
+					unmasked &= ~0xff;
+					break;
+				case 3:
+				default:	/* Used here to suppress gcc warnings. */
+					loaded_tag =
+					    FPU_load_int16((short __user *)
+							   data_address,
+							   &loaded_data);
+					break;
+				}
+
+				/* No more access to user memory, it is safe
+				   to use static data now */
+
+				/* NaN operands have the next priority. */
+				/* We have to delay looking at st(0) until after
+				   loading the data, because that data might contain an SNaN */
+				if (((st0_tag == TAG_Special) && isNaN(st0_ptr))
+				    || ((loaded_tag == TAG_Special)
+					&& isNaN(&loaded_data))) {
+					/* Restore the status word; we might have loaded a
+					   denormal. */
+					partial_status = status1;
+					if ((FPU_modrm & 0x30) == 0x10) {
+						/* fcom or fcomp */
+						EXCEPTION(EX_Invalid);
+						setcc(SW_C3 | SW_C2 | SW_C0);
+						if ((FPU_modrm & 0x08)
+						    && (control_word &
+							CW_Invalid))
+							FPU_pop();	/* fcomp, masked, so we pop. */
+					} else {
+						if (loaded_tag == TAG_Special)
+							loaded_tag =
+							    FPU_Special
+							    (&loaded_data);
+#ifdef PECULIAR_486
+						/* This is not really needed, but gives behaviour
+						   identical to an 80486 */
+						if ((FPU_modrm & 0x28) == 0x20)
+							/* fdiv or fsub */
+							real_2op_NaN
+							    (&loaded_data,
+							     loaded_tag, 0,
+							     &loaded_data);
+						else
+#endif /* PECULIAR_486 */
+							/* fadd, fdivr, fmul, or fsubr */
+							real_2op_NaN
+							    (&loaded_data,
+							     loaded_tag, 0,
+							     st0_ptr);
+					}
+					goto reg_mem_instr_done;
+				}
+
+				if (unmasked && !((FPU_modrm & 0x30) == 0x10)) {
+					/* Is not a comparison instruction. */
+					if ((FPU_modrm & 0x38) == 0x38) {
+						/* fdivr */
+						if ((st0_tag == TAG_Zero) &&
+						    ((loaded_tag == TAG_Valid)
+						     || (loaded_tag ==
+							 TAG_Special
+							 &&
+							 isdenormal
+							 (&loaded_data)))) {
+							if (FPU_divide_by_zero
+							    (0,
+							     getsign
+							     (&loaded_data))
+							    < 0) {
+								/* We use the fact here that the unmasked
+								   exception in the loaded data was for a
+								   denormal operand */
+								/* Restore the state of the denormal op bit */
+								partial_status
+								    &=
+								    ~SW_Denorm_Op;
+								partial_status
+								    |=
+								    status1 &
+								    SW_Denorm_Op;
+							} else
+								setsign(st0_ptr,
+									getsign
+									(&loaded_data));
+						}
+					}
+					goto reg_mem_instr_done;
+				}
+
+				switch ((FPU_modrm >> 3) & 7) {
+				case 0:	/* fadd */
+					clear_C1();
+					FPU_add(&loaded_data, loaded_tag, 0,
+						control_word);
+					break;
+				case 1:	/* fmul */
+					clear_C1();
+					FPU_mul(&loaded_data, loaded_tag, 0,
+						control_word);
+					break;
+				case 2:	/* fcom */
+					FPU_compare_st_data(&loaded_data,
+							    loaded_tag);
+					break;
+				case 3:	/* fcomp */
+					if (!FPU_compare_st_data
+					    (&loaded_data, loaded_tag)
+					    && !unmasked)
+						FPU_pop();
+					break;
+				case 4:	/* fsub */
+					clear_C1();
+					FPU_sub(LOADED | loaded_tag,
+						(int)&loaded_data,
+						control_word);
+					break;
+				case 5:	/* fsubr */
+					clear_C1();
+					FPU_sub(REV | LOADED | loaded_tag,
+						(int)&loaded_data,
+						control_word);
+					break;
+				case 6:	/* fdiv */
+					clear_C1();
+					FPU_div(LOADED | loaded_tag,
+						(int)&loaded_data,
+						control_word);
+					break;
+				case 7:	/* fdivr */
+					clear_C1();
+					if (st0_tag == TAG_Zero)
+						partial_status = status1;	/* Undo any denorm tag,
+										   zero-divide has priority. */
+					FPU_div(REV | LOADED | loaded_tag,
+						(int)&loaded_data,
+						control_word);
+					break;
+				}
+			} else {
+				if ((FPU_modrm & 0x30) == 0x10) {
+					/* The instruction is fcom or fcomp */
+					EXCEPTION(EX_StackUnder);
+					setcc(SW_C3 | SW_C2 | SW_C0);
+					if ((FPU_modrm & 0x08)
+					    && (control_word & CW_Invalid))
+						FPU_pop();	/* fcomp */
+				} else
+					FPU_stack_underflow();
+			}
+		      reg_mem_instr_done:
+			operand_address = data_sel_off;
+		} else {
+			if (!(no_ip_update =
+			      FPU_load_store(((FPU_modrm & 0x38) | (byte1 & 6))
+					     >> 1, addr_modes, data_address))) {
+				operand_address = data_sel_off;
+			}
 		}
-	      else
-		FPU_stack_underflow();
-	    }
-	reg_mem_instr_done:
-	  operand_address = data_sel_off;
-	}
-      else
-	{
-	  if ( !(no_ip_update =
-		 FPU_load_store(((FPU_modrm & 0x38) | (byte1 & 6)) >> 1,
-				addr_modes, data_address)) )
-	    {
-	      operand_address = data_sel_off;
-	    }
-	}
 
-    }
-  else
-    {
-      /* None of these instructions access user memory */
-      u_char instr_index = (FPU_modrm & 0x38) | (byte1 & 7);
+	} else {
+		/* None of these instructions access user memory */
+		u_char instr_index = (FPU_modrm & 0x38) | (byte1 & 7);
 
 #ifdef PECULIAR_486
-      /* This is supposed to be undefined, but a real 80486 seems
-	 to do this: */
-      operand_address.offset = 0;
-      operand_address.selector = FPU_DS;
+		/* This is supposed to be undefined, but a real 80486 seems
+		   to do this: */
+		operand_address.offset = 0;
+		operand_address.selector = FPU_DS;
 #endif /* PECULIAR_486 */
 
-      st0_ptr = &st(0);
-      st0_tag = FPU_gettag0();
-      switch ( type_table[(int) instr_index] )
-	{
-	case _NONE_:   /* also _REGIc: _REGIn */
-	  break;
-	case _REG0_:
-	  if ( !NOT_EMPTY_ST0 )
-	    {
-	      FPU_stack_underflow();
-	      goto FPU_instruction_done;
-	    }
-	  break;
-	case _REGIi:
-	  if ( !NOT_EMPTY_ST0 || !NOT_EMPTY(FPU_rm) )
-	    {
-	      FPU_stack_underflow_i(FPU_rm);
-	      goto FPU_instruction_done;
-	    }
-	  break;
-	case _REGIp:
-	  if ( !NOT_EMPTY_ST0 || !NOT_EMPTY(FPU_rm) )
-	    {
-	      FPU_stack_underflow_pop(FPU_rm);
-	      goto FPU_instruction_done;
-	    }
-	  break;
-	case _REGI_:
-	  if ( !NOT_EMPTY_ST0 || !NOT_EMPTY(FPU_rm) )
-	    {
-	      FPU_stack_underflow();
-	      goto FPU_instruction_done;
-	    }
-	  break;
-	case _PUSH_:     /* Only used by the fld st(i) instruction */
-	  break;
-	case _null_:
-	  FPU_illegal();
-	  goto FPU_instruction_done;
-	default:
-	  EXCEPTION(EX_INTERNAL|0x111);
-	  goto FPU_instruction_done;
-	}
-      (*st_instr_table[(int) instr_index])();
+		st0_ptr = &st(0);
+		st0_tag = FPU_gettag0();
+		switch (type_table[(int)instr_index]) {
+		case _NONE_:	/* also _REGIc: _REGIn */
+			break;
+		case _REG0_:
+			if (!NOT_EMPTY_ST0) {
+				FPU_stack_underflow();
+				goto FPU_instruction_done;
+			}
+			break;
+		case _REGIi:
+			if (!NOT_EMPTY_ST0 || !NOT_EMPTY(FPU_rm)) {
+				FPU_stack_underflow_i(FPU_rm);
+				goto FPU_instruction_done;
+			}
+			break;
+		case _REGIp:
+			if (!NOT_EMPTY_ST0 || !NOT_EMPTY(FPU_rm)) {
+				FPU_stack_underflow_pop(FPU_rm);
+				goto FPU_instruction_done;
+			}
+			break;
+		case _REGI_:
+			if (!NOT_EMPTY_ST0 || !NOT_EMPTY(FPU_rm)) {
+				FPU_stack_underflow();
+				goto FPU_instruction_done;
+			}
+			break;
+		case _PUSH_:	/* Only used by the fld st(i) instruction */
+			break;
+		case _null_:
+			FPU_illegal();
+			goto FPU_instruction_done;
+		default:
+			EXCEPTION(EX_INTERNAL | 0x111);
+			goto FPU_instruction_done;
+		}
+		(*st_instr_table[(int)instr_index]) ();
 
-FPU_instruction_done:
-      ;
-    }
+	      FPU_instruction_done:
+		;
+	}
 
-  if ( ! no_ip_update )
-    instruction_address = entry_sel_off;
+	if (!no_ip_update)
+		instruction_address = entry_sel_off;
 
-FPU_fwait_done:
+      FPU_fwait_done:
 
 #ifdef DEBUG
-  RE_ENTRANT_CHECK_OFF;
-  FPU_printall();
-  RE_ENTRANT_CHECK_ON;
+	RE_ENTRANT_CHECK_OFF;
+	FPU_printall();
+	RE_ENTRANT_CHECK_ON;
 #endif /* DEBUG */
 
-  if (FPU_lookahead && !need_resched())
-    {
-      FPU_ORIG_EIP = FPU_EIP - code_base;
-      if ( valid_prefix(&byte1, (u_char __user **)&FPU_EIP,
-			&addr_modes.override) )
-	goto do_another_FPU_instruction;
-    }
+	if (FPU_lookahead && !need_resched()) {
+		FPU_ORIG_EIP = FPU_EIP - code_base;
+		if (valid_prefix(&byte1, (u_char __user **) & FPU_EIP,
+				 &addr_modes.override))
+			goto do_another_FPU_instruction;
+	}
 
-  if ( addr_modes.default_mode )
-    FPU_EIP -= code_base;
+	if (addr_modes.default_mode)
+		FPU_EIP -= code_base;
 
-  RE_ENTRANT_CHECK_OFF;
+	RE_ENTRANT_CHECK_OFF;
 }
 
-
 /* Support for prefix bytes is not yet complete. To properly handle
    all prefix bytes, further changes are needed in the emulator code
    which accesses user address space. Access to separate segments is
    important for msdos emulation. */
-static int valid_prefix(u_char *Byte, u_char __user **fpu_eip,
-			overrides *override)
+static int valid_prefix(u_char * Byte, u_char __user ** fpu_eip,
+			overrides * override)
 {
-  u_char byte;
-  u_char __user *ip = *fpu_eip;
-
-  *override = (overrides) { 0, 0, PREFIX_DEFAULT };       /* defaults */
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_code_access_ok(1);
-  FPU_get_user(byte, ip);
-  RE_ENTRANT_CHECK_ON;
-
-  while ( 1 )
-    {
-      switch ( byte )
-	{
-	case ADDR_SIZE_PREFIX:
-	  override->address_size = ADDR_SIZE_PREFIX;
-	  goto do_next_byte;
-
-	case OP_SIZE_PREFIX:
-	  override->operand_size = OP_SIZE_PREFIX;
-	  goto do_next_byte;
-
-	case PREFIX_CS:
-	  override->segment = PREFIX_CS_;
-	  goto do_next_byte;
-	case PREFIX_ES:
-	  override->segment = PREFIX_ES_;
-	  goto do_next_byte;
-	case PREFIX_SS:
-	  override->segment = PREFIX_SS_;
-	  goto do_next_byte;
-	case PREFIX_FS:
-	  override->segment = PREFIX_FS_;
-	  goto do_next_byte;
-	case PREFIX_GS:
-	  override->segment = PREFIX_GS_;
-	  goto do_next_byte;
-	case PREFIX_DS:
-	  override->segment = PREFIX_DS_;
-	  goto do_next_byte;
+	u_char byte;
+	u_char __user *ip = *fpu_eip;
+
+	*override = (overrides) {
+	0, 0, PREFIX_DEFAULT};	/* defaults */
+
+	RE_ENTRANT_CHECK_OFF;
+	FPU_code_access_ok(1);
+	FPU_get_user(byte, ip);
+	RE_ENTRANT_CHECK_ON;
+
+	while (1) {
+		switch (byte) {
+		case ADDR_SIZE_PREFIX:
+			override->address_size = ADDR_SIZE_PREFIX;
+			goto do_next_byte;
+
+		case OP_SIZE_PREFIX:
+			override->operand_size = OP_SIZE_PREFIX;
+			goto do_next_byte;
+
+		case PREFIX_CS:
+			override->segment = PREFIX_CS_;
+			goto do_next_byte;
+		case PREFIX_ES:
+			override->segment = PREFIX_ES_;
+			goto do_next_byte;
+		case PREFIX_SS:
+			override->segment = PREFIX_SS_;
+			goto do_next_byte;
+		case PREFIX_FS:
+			override->segment = PREFIX_FS_;
+			goto do_next_byte;
+		case PREFIX_GS:
+			override->segment = PREFIX_GS_;
+			goto do_next_byte;
+		case PREFIX_DS:
+			override->segment = PREFIX_DS_;
+			goto do_next_byte;
 
 /* lock is not a valid prefix for FPU instructions,
    let the cpu handle it to generate a SIGILL. */
 /*	case PREFIX_LOCK: */
 
-	  /* rep.. prefixes have no meaning for FPU instructions */
-	case PREFIX_REPE:
-	case PREFIX_REPNE:
-
-	do_next_byte:
-	  ip++;
-	  RE_ENTRANT_CHECK_OFF;
-	  FPU_code_access_ok(1);
-	  FPU_get_user(byte, ip);
-	  RE_ENTRANT_CHECK_ON;
-	  break;
-	case FWAIT_OPCODE:
-	  *Byte = byte;
-	  return 1;
-	default:
-	  if ( (byte & 0xf8) == 0xd8 )
-	    {
-	      *Byte = byte;
-	      *fpu_eip = ip;
-	      return 1;
-	    }
-	  else
-	    {
-	      /* Not a valid sequence of prefix bytes followed by
-		 an FPU instruction. */
-	      *Byte = byte;  /* Needed for error message. */
-	      return 0;
-	    }
+			/* rep.. prefixes have no meaning for FPU instructions */
+		case PREFIX_REPE:
+		case PREFIX_REPNE:
+
+		      do_next_byte:
+			ip++;
+			RE_ENTRANT_CHECK_OFF;
+			FPU_code_access_ok(1);
+			FPU_get_user(byte, ip);
+			RE_ENTRANT_CHECK_ON;
+			break;
+		case FWAIT_OPCODE:
+			*Byte = byte;
+			return 1;
+		default:
+			if ((byte & 0xf8) == 0xd8) {
+				*Byte = byte;
+				*fpu_eip = ip;
+				return 1;
+			} else {
+				/* Not a valid sequence of prefix bytes followed by
+				   an FPU instruction. */
+				*Byte = byte;	/* Needed for error message. */
+				return 0;
+			}
+		}
 	}
-    }
 }
 
-
-void math_abort(struct info * info, unsigned int signal)
+void math_abort(struct info *info, unsigned int signal)
 {
 	FPU_EIP = FPU_ORIG_EIP;
 	current->thread.trap_no = 16;
 	current->thread.error_code = 0;
-	send_sig(signal,current,1);
+	send_sig(signal, current, 1);
 	RE_ENTRANT_CHECK_OFF;
-	__asm__("movl %0,%%esp ; ret": :"g" (((long) info)-4));
+      __asm__("movl %0,%%esp ; ret": :"g"(((long)info) - 4));
 #ifdef PARANOID
-      printk("ERROR: wm-FPU-emu math_abort failed!\n");
+	printk("ERROR: wm-FPU-emu math_abort failed!\n");
 #endif /* PARANOID */
 }
 
-
-
 #define S387 ((struct i387_soft_struct *)s387)
 #define sstatus_word() \
   ((S387->swd & ~SW_Top & 0xffff) | ((S387->ftop << SW_Top_Shift) & SW_Top))
 
-int restore_i387_soft(void *s387, struct _fpstate __user *buf)
+int restore_i387_soft(void *s387, struct _fpstate __user * buf)
 {
-  u_char __user *d = (u_char __user *)buf;
-  int offset, other, i, tags, regnr, tag, newtop;
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_READ, d, 7*4 + 8*10);
-  if (__copy_from_user(&S387->cwd, d, 7*4))
-    return -1;
-  RE_ENTRANT_CHECK_ON;
-
-  d += 7*4;
-
-  S387->ftop = (S387->swd >> SW_Top_Shift) & 7;
-  offset = (S387->ftop & 7) * 10;
-  other = 80 - offset;
-
-  RE_ENTRANT_CHECK_OFF;
-  /* Copy all registers in stack order. */
-  if (__copy_from_user(((u_char *)&S387->st_space)+offset, d, other))
-    return -1;
-  if ( offset )
-    if (__copy_from_user((u_char *)&S387->st_space, d+other, offset))
-      return -1;
-  RE_ENTRANT_CHECK_ON;
-
-  /* The tags may need to be corrected now. */
-  tags = S387->twd;
-  newtop = S387->ftop;
-  for ( i = 0; i < 8; i++ )
-    {
-      regnr = (i+newtop) & 7;
-      if ( ((tags >> ((regnr & 7)*2)) & 3) != TAG_Empty )
-	{
-	  /* The loaded data over-rides all other cases. */
-	  tag = FPU_tagof((FPU_REG *)((u_char *)S387->st_space + 10*regnr));
-	  tags &= ~(3 << (regnr*2));
-	  tags |= (tag & 3) << (regnr*2);
+	u_char __user *d = (u_char __user *) buf;
+	int offset, other, i, tags, regnr, tag, newtop;
+
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_READ, d, 7 * 4 + 8 * 10);
+	if (__copy_from_user(&S387->cwd, d, 7 * 4))
+		return -1;
+	RE_ENTRANT_CHECK_ON;
+
+	d += 7 * 4;
+
+	S387->ftop = (S387->swd >> SW_Top_Shift) & 7;
+	offset = (S387->ftop & 7) * 10;
+	other = 80 - offset;
+
+	RE_ENTRANT_CHECK_OFF;
+	/* Copy all registers in stack order. */
+	if (__copy_from_user(((u_char *) & S387->st_space) + offset, d, other))
+		return -1;
+	if (offset)
+		if (__copy_from_user
+		    ((u_char *) & S387->st_space, d + other, offset))
+			return -1;
+	RE_ENTRANT_CHECK_ON;
+
+	/* The tags may need to be corrected now. */
+	tags = S387->twd;
+	newtop = S387->ftop;
+	for (i = 0; i < 8; i++) {
+		regnr = (i + newtop) & 7;
+		if (((tags >> ((regnr & 7) * 2)) & 3) != TAG_Empty) {
+			/* The loaded data over-rides all other cases. */
+			tag =
+			    FPU_tagof((FPU_REG *) ((u_char *) S387->st_space +
+						   10 * regnr));
+			tags &= ~(3 << (regnr * 2));
+			tags |= (tag & 3) << (regnr * 2);
+		}
 	}
-    }
-  S387->twd = tags;
+	S387->twd = tags;
 
-  return 0;
+	return 0;
 }
 
-
 int save_i387_soft(void *s387, struct _fpstate __user * buf)
 {
-  u_char __user *d = (u_char __user *)buf;
-  int offset = (S387->ftop & 7) * 10, other = 80 - offset;
+	u_char __user *d = (u_char __user *) buf;
+	int offset = (S387->ftop & 7) * 10, other = 80 - offset;
 
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_WRITE, d, 7*4 + 8*10);
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_WRITE, d, 7 * 4 + 8 * 10);
 #ifdef PECULIAR_486
-  S387->cwd &= ~0xe080;
-  /* An 80486 sets nearly all of the reserved bits to 1. */
-  S387->cwd |= 0xffff0040;
-  S387->swd = sstatus_word() | 0xffff0000;
-  S387->twd |= 0xffff0000;
-  S387->fcs &= ~0xf8000000;
-  S387->fos |= 0xffff0000;
+	S387->cwd &= ~0xe080;
+	/* An 80486 sets nearly all of the reserved bits to 1. */
+	S387->cwd |= 0xffff0040;
+	S387->swd = sstatus_word() | 0xffff0000;
+	S387->twd |= 0xffff0000;
+	S387->fcs &= ~0xf8000000;
+	S387->fos |= 0xffff0000;
 #endif /* PECULIAR_486 */
-  if (__copy_to_user(d, &S387->cwd, 7*4))
-    return -1;
-  RE_ENTRANT_CHECK_ON;
-
-  d += 7*4;
-
-  RE_ENTRANT_CHECK_OFF;
-  /* Copy all registers in stack order. */
-  if (__copy_to_user(d, ((u_char *)&S387->st_space)+offset, other))
-    return -1;
-  if ( offset )
-    if (__copy_to_user(d+other, (u_char *)&S387->st_space, offset))
-      return -1;
-  RE_ENTRANT_CHECK_ON;
-
-  return 1;
+	if (__copy_to_user(d, &S387->cwd, 7 * 4))
+		return -1;
+	RE_ENTRANT_CHECK_ON;
+
+	d += 7 * 4;
+
+	RE_ENTRANT_CHECK_OFF;
+	/* Copy all registers in stack order. */
+	if (__copy_to_user(d, ((u_char *) & S387->st_space) + offset, other))
+		return -1;
+	if (offset)
+		if (__copy_to_user
+		    (d + other, (u_char *) & S387->st_space, offset))
+			return -1;
+	RE_ENTRANT_CHECK_ON;
+
+	return 1;
 }
diff --git a/arch/x86/math-emu/fpu_etc.c b/arch/x86/math-emu/fpu_etc.c
index e3b5d465587f..e73631e0cde9 100644
--- a/arch/x86/math-emu/fpu_etc.c
+++ b/arch/x86/math-emu/fpu_etc.c
@@ -16,128 +16,115 @@
 #include "status_w.h"
 #include "reg_constant.h"
 
-
-static void fchs(FPU_REG *st0_ptr, u_char st0tag)
+static void fchs(FPU_REG * st0_ptr, u_char st0tag)
 {
-  if ( st0tag ^ TAG_Empty )
-    {
-      signbyte(st0_ptr) ^= SIGN_NEG;
-      clear_C1();
-    }
-  else
-    FPU_stack_underflow();
+	if (st0tag ^ TAG_Empty) {
+		signbyte(st0_ptr) ^= SIGN_NEG;
+		clear_C1();
+	} else
+		FPU_stack_underflow();
 }
 
-
-static void fabs(FPU_REG *st0_ptr, u_char st0tag)
+static void fabs(FPU_REG * st0_ptr, u_char st0tag)
 {
-  if ( st0tag ^ TAG_Empty )
-    {
-      setpositive(st0_ptr);
-      clear_C1();
-    }
-  else
-    FPU_stack_underflow();
+	if (st0tag ^ TAG_Empty) {
+		setpositive(st0_ptr);
+		clear_C1();
+	} else
+		FPU_stack_underflow();
 }
 
-
-static void ftst_(FPU_REG *st0_ptr, u_char st0tag)
+static void ftst_(FPU_REG * st0_ptr, u_char st0tag)
 {
-  switch (st0tag)
-    {
-    case TAG_Zero:
-      setcc(SW_C3);
-      break;
-    case TAG_Valid:
-      if (getsign(st0_ptr) == SIGN_POS)
-        setcc(0);
-      else
-        setcc(SW_C0);
-      break;
-    case TAG_Special:
-      switch ( FPU_Special(st0_ptr) )
-	{
-	case TW_Denormal:
-	  if (getsign(st0_ptr) == SIGN_POS)
-	    setcc(0);
-	  else
-	    setcc(SW_C0);
-	  if ( denormal_operand() < 0 )
-	    {
-#ifdef PECULIAR_486
-	      /* This is weird! */
-	      if (getsign(st0_ptr) == SIGN_POS)
+	switch (st0tag) {
+	case TAG_Zero:
 		setcc(SW_C3);
+		break;
+	case TAG_Valid:
+		if (getsign(st0_ptr) == SIGN_POS)
+			setcc(0);
+		else
+			setcc(SW_C0);
+		break;
+	case TAG_Special:
+		switch (FPU_Special(st0_ptr)) {
+		case TW_Denormal:
+			if (getsign(st0_ptr) == SIGN_POS)
+				setcc(0);
+			else
+				setcc(SW_C0);
+			if (denormal_operand() < 0) {
+#ifdef PECULIAR_486
+				/* This is weird! */
+				if (getsign(st0_ptr) == SIGN_POS)
+					setcc(SW_C3);
 #endif /* PECULIAR_486 */
-	      return;
-	    }
-	  break;
-	case TW_NaN:
-	  setcc(SW_C0|SW_C2|SW_C3);   /* Operand is not comparable */ 
-	  EXCEPTION(EX_Invalid);
-	  break;
-	case TW_Infinity:
-	  if (getsign(st0_ptr) == SIGN_POS)
-	    setcc(0);
-	  else
-	    setcc(SW_C0);
-	  break;
-	default:
-	  setcc(SW_C0|SW_C2|SW_C3);   /* Operand is not comparable */ 
-	  EXCEPTION(EX_INTERNAL|0x14);
-	  break;
+				return;
+			}
+			break;
+		case TW_NaN:
+			setcc(SW_C0 | SW_C2 | SW_C3);	/* Operand is not comparable */
+			EXCEPTION(EX_Invalid);
+			break;
+		case TW_Infinity:
+			if (getsign(st0_ptr) == SIGN_POS)
+				setcc(0);
+			else
+				setcc(SW_C0);
+			break;
+		default:
+			setcc(SW_C0 | SW_C2 | SW_C3);	/* Operand is not comparable */
+			EXCEPTION(EX_INTERNAL | 0x14);
+			break;
+		}
+		break;
+	case TAG_Empty:
+		setcc(SW_C0 | SW_C2 | SW_C3);
+		EXCEPTION(EX_StackUnder);
+		break;
 	}
-      break;
-    case TAG_Empty:
-      setcc(SW_C0|SW_C2|SW_C3);
-      EXCEPTION(EX_StackUnder);
-      break;
-    }
 }
 
-
-static void fxam(FPU_REG *st0_ptr, u_char st0tag)
+static void fxam(FPU_REG * st0_ptr, u_char st0tag)
 {
-  int c = 0;
-  switch (st0tag)
-    {
-    case TAG_Empty:
-      c = SW_C3|SW_C0;
-      break;
-    case TAG_Zero:
-      c = SW_C3;
-      break;
-    case TAG_Valid:
-      c = SW_C2;
-      break;
-    case TAG_Special:
-      switch ( FPU_Special(st0_ptr) )
-	{
-	case TW_Denormal:
-	  c = SW_C2|SW_C3;  /* Denormal */
-	  break;
-	case TW_NaN:
-	  /* We also use NaN for unsupported types. */
-	  if ( (st0_ptr->sigh & 0x80000000) && (exponent(st0_ptr) == EXP_OVER) )
-	    c = SW_C0;
-	  break;
-	case TW_Infinity:
-	  c = SW_C2|SW_C0;
-	  break;
+	int c = 0;
+	switch (st0tag) {
+	case TAG_Empty:
+		c = SW_C3 | SW_C0;
+		break;
+	case TAG_Zero:
+		c = SW_C3;
+		break;
+	case TAG_Valid:
+		c = SW_C2;
+		break;
+	case TAG_Special:
+		switch (FPU_Special(st0_ptr)) {
+		case TW_Denormal:
+			c = SW_C2 | SW_C3;	/* Denormal */
+			break;
+		case TW_NaN:
+			/* We also use NaN for unsupported types. */
+			if ((st0_ptr->sigh & 0x80000000)
+			    && (exponent(st0_ptr) == EXP_OVER))
+				c = SW_C0;
+			break;
+		case TW_Infinity:
+			c = SW_C2 | SW_C0;
+			break;
+		}
 	}
-    }
-  if ( getsign(st0_ptr) == SIGN_NEG )
-    c |= SW_C1;
-  setcc(c);
+	if (getsign(st0_ptr) == SIGN_NEG)
+		c |= SW_C1;
+	setcc(c);
 }
 
-
 static FUNC_ST0 const fp_etc_table[] = {
-  fchs, fabs, (FUNC_ST0)FPU_illegal, (FUNC_ST0)FPU_illegal,
-  ftst_, fxam, (FUNC_ST0)FPU_illegal, (FUNC_ST0)FPU_illegal
+	fchs, fabs, (FUNC_ST0) FPU_illegal, (FUNC_ST0) FPU_illegal,
+	ftst_, fxam, (FUNC_ST0) FPU_illegal, (FUNC_ST0) FPU_illegal
 };
 
 void FPU_etc(void)
 {
-  (fp_etc_table[FPU_rm])(&st(0), FPU_gettag0());
+	(fp_etc_table[FPU_rm]) (&st(0), FPU_gettag0());
 }
diff --git a/arch/x86/math-emu/fpu_proto.h b/arch/x86/math-emu/fpu_proto.h
index 37a8a7fe7e2b..0f6384102afd 100644
--- a/arch/x86/math-emu/fpu_proto.h
+++ b/arch/x86/math-emu/fpu_proto.h
@@ -5,7 +5,7 @@
 extern void FPU_illegal(void);
 extern void FPU_printall(void);
 asmlinkage void FPU_exception(int n);
-extern int real_1op_NaN(FPU_REG *a);
+extern int real_1op_NaN(FPU_REG * a);
 extern int real_2op_NaN(FPU_REG const *b, u_char tagb, int deststnr,
 			FPU_REG const *defaultNaN);
 asmlinkage int arith_invalid(int deststnr);
@@ -14,8 +14,8 @@ extern int set_precision_flag(int flags);
 asmlinkage void set_precision_flag_up(void);
 asmlinkage void set_precision_flag_down(void);
 asmlinkage int denormal_operand(void);
-asmlinkage int arith_overflow(FPU_REG *dest);
-asmlinkage int arith_underflow(FPU_REG *dest);
+asmlinkage int arith_overflow(FPU_REG * dest);
+asmlinkage int arith_underflow(FPU_REG * dest);
 extern void FPU_stack_overflow(void);
 extern void FPU_stack_underflow(void);
 extern void FPU_stack_underflow_i(int i);
@@ -66,7 +66,7 @@ extern int FPU_Special(FPU_REG const *ptr);
 extern int isNaN(FPU_REG const *ptr);
 extern void FPU_pop(void);
 extern int FPU_empty_i(int stnr);
-extern int FPU_stackoverflow(FPU_REG **st_new_ptr);
+extern int FPU_stackoverflow(FPU_REG ** st_new_ptr);
 extern void FPU_copy_to_regi(FPU_REG const *r, u_char tag, int stnr);
 extern void FPU_copy_to_reg1(FPU_REG const *r, u_char tag);
 extern void FPU_copy_to_reg0(FPU_REG const *r, u_char tag);
@@ -75,26 +75,28 @@ extern void FPU_triga(void);
 extern void FPU_trigb(void);
 /* get_address.c */
 extern void __user *FPU_get_address(u_char FPU_modrm, unsigned long *fpu_eip,
-			 struct address *addr, fpu_addr_modes addr_modes);
+				    struct address *addr,
+				    fpu_addr_modes addr_modes);
 extern void __user *FPU_get_address_16(u_char FPU_modrm, unsigned long *fpu_eip,
-			    struct address *addr, fpu_addr_modes addr_modes);
+				       struct address *addr,
+				       fpu_addr_modes addr_modes);
 /* load_store.c */
 extern int FPU_load_store(u_char type, fpu_addr_modes addr_modes,
-			    void __user *data_address);
+			  void __user * data_address);
 /* poly_2xm1.c */
-extern int poly_2xm1(u_char sign, FPU_REG *arg, FPU_REG *result);
+extern int poly_2xm1(u_char sign, FPU_REG * arg, FPU_REG * result);
 /* poly_atan.c */
-extern void poly_atan(FPU_REG *st0_ptr, u_char st0_tag, FPU_REG *st1_ptr,
+extern void poly_atan(FPU_REG * st0_ptr, u_char st0_tag, FPU_REG * st1_ptr,
 		      u_char st1_tag);
 /* poly_l2.c */
-extern void poly_l2(FPU_REG *st0_ptr, FPU_REG *st1_ptr, u_char st1_sign);
-extern int poly_l2p1(u_char s0, u_char s1, FPU_REG *r0, FPU_REG *r1,
-		     FPU_REG *d);
+extern void poly_l2(FPU_REG * st0_ptr, FPU_REG * st1_ptr, u_char st1_sign);
+extern int poly_l2p1(u_char s0, u_char s1, FPU_REG * r0, FPU_REG * r1,
+		     FPU_REG * d);
 /* poly_sin.c */
-extern void poly_sine(FPU_REG *st0_ptr);
-extern void poly_cos(FPU_REG *st0_ptr);
+extern void poly_sine(FPU_REG * st0_ptr);
+extern void poly_cos(FPU_REG * st0_ptr);
 /* poly_tan.c */
-extern void poly_tan(FPU_REG *st0_ptr);
+extern void poly_tan(FPU_REG * st0_ptr);
 /* reg_add_sub.c */
 extern int FPU_add(FPU_REG const *b, u_char tagb, int destrnr, int control_w);
 extern int FPU_sub(int flags, int rm, int control_w);
@@ -109,32 +111,34 @@ extern void fucompp(void);
 /* reg_constant.c */
 extern void fconst(void);
 /* reg_ld_str.c */
-extern int FPU_load_extended(long double __user *s, int stnr);
-extern int FPU_load_double(double __user *dfloat, FPU_REG *loaded_data);
-extern int FPU_load_single(float __user *single, FPU_REG *loaded_data);
-extern int FPU_load_int64(long long __user *_s);
-extern int FPU_load_int32(long __user *_s, FPU_REG *loaded_data);
-extern int FPU_load_int16(short __user *_s, FPU_REG *loaded_data);
-extern int FPU_load_bcd(u_char __user *s);
-extern int FPU_store_extended(FPU_REG *st0_ptr, u_char st0_tag,
-			      long double __user *d);
-extern int FPU_store_double(FPU_REG *st0_ptr, u_char st0_tag, double __user *dfloat);
-extern int FPU_store_single(FPU_REG *st0_ptr, u_char st0_tag, float __user *single);
-extern int FPU_store_int64(FPU_REG *st0_ptr, u_char st0_tag, long long __user *d);
-extern int FPU_store_int32(FPU_REG *st0_ptr, u_char st0_tag, long __user *d);
-extern int FPU_store_int16(FPU_REG *st0_ptr, u_char st0_tag, short __user *d);
-extern int FPU_store_bcd(FPU_REG *st0_ptr, u_char st0_tag, u_char __user *d);
-extern int FPU_round_to_int(FPU_REG *r, u_char tag);
-extern u_char __user *fldenv(fpu_addr_modes addr_modes, u_char __user *s);
-extern void frstor(fpu_addr_modes addr_modes, u_char __user *data_address);
-extern u_char __user *fstenv(fpu_addr_modes addr_modes, u_char __user *d);
-extern void fsave(fpu_addr_modes addr_modes, u_char __user *data_address);
-extern int FPU_tagof(FPU_REG *ptr);
+extern int FPU_load_extended(long double __user * s, int stnr);
+extern int FPU_load_double(double __user * dfloat, FPU_REG * loaded_data);
+extern int FPU_load_single(float __user * single, FPU_REG * loaded_data);
+extern int FPU_load_int64(long long __user * _s);
+extern int FPU_load_int32(long __user * _s, FPU_REG * loaded_data);
+extern int FPU_load_int16(short __user * _s, FPU_REG * loaded_data);
+extern int FPU_load_bcd(u_char __user * s);
+extern int FPU_store_extended(FPU_REG * st0_ptr, u_char st0_tag,
+			      long double __user * d);
+extern int FPU_store_double(FPU_REG * st0_ptr, u_char st0_tag,
+			    double __user * dfloat);
+extern int FPU_store_single(FPU_REG * st0_ptr, u_char st0_tag,
+			    float __user * single);
+extern int FPU_store_int64(FPU_REG * st0_ptr, u_char st0_tag,
+			   long long __user * d);
+extern int FPU_store_int32(FPU_REG * st0_ptr, u_char st0_tag, long __user * d);
+extern int FPU_store_int16(FPU_REG * st0_ptr, u_char st0_tag, short __user * d);
+extern int FPU_store_bcd(FPU_REG * st0_ptr, u_char st0_tag, u_char __user * d);
+extern int FPU_round_to_int(FPU_REG * r, u_char tag);
+extern u_char __user *fldenv(fpu_addr_modes addr_modes, u_char __user * s);
+extern void frstor(fpu_addr_modes addr_modes, u_char __user * data_address);
+extern u_char __user *fstenv(fpu_addr_modes addr_modes, u_char __user * d);
+extern void fsave(fpu_addr_modes addr_modes, u_char __user * data_address);
+extern int FPU_tagof(FPU_REG * ptr);
 /* reg_mul.c */
 extern int FPU_mul(FPU_REG const *b, u_char tagb, int deststnr, int control_w);
 
 extern int FPU_div(int flags, int regrm, int control_w);
 /* reg_convert.c */
-extern int FPU_to_exp16(FPU_REG const *a, FPU_REG *x);
+extern int FPU_to_exp16(FPU_REG const *a, FPU_REG * x);
 #endif /* _FPU_PROTO_H */
-
diff --git a/arch/x86/math-emu/fpu_tags.c b/arch/x86/math-emu/fpu_tags.c
index cb436fe20e4c..d9c657cd7746 100644
--- a/arch/x86/math-emu/fpu_tags.c
+++ b/arch/x86/math-emu/fpu_tags.c
@@ -14,114 +14,102 @@
 #include "fpu_system.h"
 #include "exception.h"
 
-
 void FPU_pop(void)
 {
-  fpu_tag_word |= 3 << ((top & 7)*2);
-  top++;
+	fpu_tag_word |= 3 << ((top & 7) * 2);
+	top++;
 }
 
-
 int FPU_gettag0(void)
 {
-  return (fpu_tag_word >> ((top & 7)*2)) & 3;
+	return (fpu_tag_word >> ((top & 7) * 2)) & 3;
 }
 
-
 int FPU_gettagi(int stnr)
 {
-  return (fpu_tag_word >> (((top+stnr) & 7)*2)) & 3;
+	return (fpu_tag_word >> (((top + stnr) & 7) * 2)) & 3;
 }
 
-
 int FPU_gettag(int regnr)
 {
-  return (fpu_tag_word >> ((regnr & 7)*2)) & 3;
+	return (fpu_tag_word >> ((regnr & 7) * 2)) & 3;
 }
 
-
 void FPU_settag0(int tag)
 {
-  int regnr = top;
-  regnr &= 7;
-  fpu_tag_word &= ~(3 << (regnr*2));
-  fpu_tag_word |= (tag & 3) << (regnr*2);
+	int regnr = top;
+	regnr &= 7;
+	fpu_tag_word &= ~(3 << (regnr * 2));
+	fpu_tag_word |= (tag & 3) << (regnr * 2);
 }
 
-
 void FPU_settagi(int stnr, int tag)
 {
-  int regnr = stnr+top;
-  regnr &= 7;
-  fpu_tag_word &= ~(3 << (regnr*2));
-  fpu_tag_word |= (tag & 3) << (regnr*2);
+	int regnr = stnr + top;
+	regnr &= 7;
+	fpu_tag_word &= ~(3 << (regnr * 2));
+	fpu_tag_word |= (tag & 3) << (regnr * 2);
 }
 
-
 void FPU_settag(int regnr, int tag)
 {
-  regnr &= 7;
-  fpu_tag_word &= ~(3 << (regnr*2));
-  fpu_tag_word |= (tag & 3) << (regnr*2);
+	regnr &= 7;
+	fpu_tag_word &= ~(3 << (regnr * 2));
+	fpu_tag_word |= (tag & 3) << (regnr * 2);
 }
 
-
 int FPU_Special(FPU_REG const *ptr)
 {
-  int exp = exponent(ptr);
-
-  if ( exp == EXP_BIAS+EXP_UNDER )
-    return TW_Denormal;
-  else if ( exp != EXP_BIAS+EXP_OVER )
-    return TW_NaN;
-  else if ( (ptr->sigh == 0x80000000) && (ptr->sigl == 0) )
-    return TW_Infinity;
-  return TW_NaN;
+	int exp = exponent(ptr);
+
+	if (exp == EXP_BIAS + EXP_UNDER)
+		return TW_Denormal;
+	else if (exp != EXP_BIAS + EXP_OVER)
+		return TW_NaN;
+	else if ((ptr->sigh == 0x80000000) && (ptr->sigl == 0))
+		return TW_Infinity;
+	return TW_NaN;
 }
 
-
 int isNaN(FPU_REG const *ptr)
 {
-  return ( (exponent(ptr) == EXP_BIAS+EXP_OVER)
-	   && !((ptr->sigh == 0x80000000) && (ptr->sigl == 0)) );
+	return ((exponent(ptr) == EXP_BIAS + EXP_OVER)
+		&& !((ptr->sigh == 0x80000000) && (ptr->sigl == 0)));
 }
 
-
 int FPU_empty_i(int stnr)
 {
-  int regnr = (top+stnr) & 7;
+	int regnr = (top + stnr) & 7;
 
-  return ((fpu_tag_word >> (regnr*2)) & 3) == TAG_Empty;
+	return ((fpu_tag_word >> (regnr * 2)) & 3) == TAG_Empty;
 }
 
-
-int FPU_stackoverflow(FPU_REG **st_new_ptr)
+int FPU_stackoverflow(FPU_REG ** st_new_ptr)
 {
-  *st_new_ptr = &st(-1);
+	*st_new_ptr = &st(-1);
 
-  return ((fpu_tag_word >> (((top - 1) & 7)*2)) & 3) != TAG_Empty;
+	return ((fpu_tag_word >> (((top - 1) & 7) * 2)) & 3) != TAG_Empty;
 }
 
-
 void FPU_copy_to_regi(FPU_REG const *r, u_char tag, int stnr)
 {
-  reg_copy(r, &st(stnr));
-  FPU_settagi(stnr, tag);
+	reg_copy(r, &st(stnr));
+	FPU_settagi(stnr, tag);
 }
 
 void FPU_copy_to_reg1(FPU_REG const *r, u_char tag)
 {
-  reg_copy(r, &st(1));
-  FPU_settagi(1, tag);
+	reg_copy(r, &st(1));
+	FPU_settagi(1, tag);
 }
 
 void FPU_copy_to_reg0(FPU_REG const *r, u_char tag)
 {
-  int regnr = top;
-  regnr &= 7;
+	int regnr = top;
+	regnr &= 7;
 
-  reg_copy(r, &st(0));
+	reg_copy(r, &st(0));
 
-  fpu_tag_word &= ~(3 << (regnr*2));
-  fpu_tag_word |= (tag & 3) << (regnr*2);
+	fpu_tag_word &= ~(3 << (regnr * 2));
+	fpu_tag_word |= (tag & 3) << (regnr * 2);
 }
diff --git a/arch/x86/math-emu/fpu_trig.c b/arch/x86/math-emu/fpu_trig.c
index 403cbde1d425..e5316a288a6e 100644
--- a/arch/x86/math-emu/fpu_trig.c
+++ b/arch/x86/math-emu/fpu_trig.c
@@ -15,11 +15,10 @@
 #include "fpu_emu.h"
 #include "status_w.h"
 #include "control_w.h"
-#include "reg_constant.h"	
+#include "reg_constant.h"
 
 static void rem_kernel(unsigned long long st0, unsigned long long *y,
-		       unsigned long long st1,
-		       unsigned long long q, int n);
+		       unsigned long long st1, unsigned long long q, int n);
 
 #define BETTER_THAN_486
 
@@ -31,790 +30,708 @@ static void rem_kernel(unsigned long long st0, unsigned long long *y,
 /* Limited measurements show no results worse than 64 bit precision
    except for the results for arguments close to 2^63, where the
    precision of the result sometimes degrades to about 63.9 bits */
-static int trig_arg(FPU_REG *st0_ptr, int even)
+static int trig_arg(FPU_REG * st0_ptr, int even)
 {
-  FPU_REG tmp;
-  u_char tmptag;
-  unsigned long long q;
-  int old_cw = control_word, saved_status = partial_status;
-  int tag, st0_tag = TAG_Valid;
-
-  if ( exponent(st0_ptr) >= 63 )
-    {
-      partial_status |= SW_C2;     /* Reduction incomplete. */
-      return -1;
-    }
-
-  control_word &= ~CW_RC;
-  control_word |= RC_CHOP;
-
-  setpositive(st0_ptr);
-  tag = FPU_u_div(st0_ptr, &CONST_PI2, &tmp, PR_64_BITS | RC_CHOP | 0x3f,
-		  SIGN_POS);
-
-  FPU_round_to_int(&tmp, tag);  /* Fortunately, this can't overflow
-				   to 2^64 */
-  q = significand(&tmp);
-  if ( q )
-    {
-      rem_kernel(significand(st0_ptr),
-		 &significand(&tmp),
-		 significand(&CONST_PI2),
-		 q, exponent(st0_ptr) - exponent(&CONST_PI2));
-      setexponent16(&tmp, exponent(&CONST_PI2));
-      st0_tag = FPU_normalize(&tmp);
-      FPU_copy_to_reg0(&tmp, st0_tag);
-    }
-
-  if ( (even && !(q & 1)) || (!even && (q & 1)) )
-    {
-      st0_tag = FPU_sub(REV|LOADED|TAG_Valid, (int)&CONST_PI2, FULL_PRECISION);
+	FPU_REG tmp;
+	u_char tmptag;
+	unsigned long long q;
+	int old_cw = control_word, saved_status = partial_status;
+	int tag, st0_tag = TAG_Valid;
+
+	if (exponent(st0_ptr) >= 63) {
+		partial_status |= SW_C2;	/* Reduction incomplete. */
+		return -1;
+	}
 
-#ifdef BETTER_THAN_486
-      /* So far, the results are exact but based upon a 64 bit
-	 precision approximation to pi/2. The technique used
-	 now is equivalent to using an approximation to pi/2 which
-	 is accurate to about 128 bits. */
-      if ( (exponent(st0_ptr) <= exponent(&CONST_PI2extra) + 64) || (q > 1) )
-	{
-	  /* This code gives the effect of having pi/2 to better than
-	     128 bits precision. */
-
-	  significand(&tmp) = q + 1;
-	  setexponent16(&tmp, 63);
-	  FPU_normalize(&tmp);
-	  tmptag =
-	    FPU_u_mul(&CONST_PI2extra, &tmp, &tmp, FULL_PRECISION, SIGN_POS,
-		      exponent(&CONST_PI2extra) + exponent(&tmp));
-	  setsign(&tmp, getsign(&CONST_PI2extra));
-	  st0_tag = FPU_add(&tmp, tmptag, 0, FULL_PRECISION);
-	  if ( signnegative(st0_ptr) )
-	    {
-	      /* CONST_PI2extra is negative, so the result of the addition
-		 can be negative. This means that the argument is actually
-		 in a different quadrant. The correction is always < pi/2,
-		 so it can't overflow into yet another quadrant. */
-	      setpositive(st0_ptr);
-	      q++;
-	    }
+	control_word &= ~CW_RC;
+	control_word |= RC_CHOP;
+
+	setpositive(st0_ptr);
+	tag = FPU_u_div(st0_ptr, &CONST_PI2, &tmp, PR_64_BITS | RC_CHOP | 0x3f,
+			SIGN_POS);
+
+	FPU_round_to_int(&tmp, tag);	/* Fortunately, this can't overflow
+					   to 2^64 */
+	q = significand(&tmp);
+	if (q) {
+		rem_kernel(significand(st0_ptr),
+			   &significand(&tmp),
+			   significand(&CONST_PI2),
+			   q, exponent(st0_ptr) - exponent(&CONST_PI2));
+		setexponent16(&tmp, exponent(&CONST_PI2));
+		st0_tag = FPU_normalize(&tmp);
+		FPU_copy_to_reg0(&tmp, st0_tag);
 	}
+
+	if ((even && !(q & 1)) || (!even && (q & 1))) {
+		st0_tag =
+		    FPU_sub(REV | LOADED | TAG_Valid, (int)&CONST_PI2,
+			    FULL_PRECISION);
+
+#ifdef BETTER_THAN_486
+		/* So far, the results are exact but based upon a 64 bit
+		   precision approximation to pi/2. The technique used
+		   now is equivalent to using an approximation to pi/2 which
+		   is accurate to about 128 bits. */
+		if ((exponent(st0_ptr) <= exponent(&CONST_PI2extra) + 64)
+		    || (q > 1)) {
+			/* This code gives the effect of having pi/2 to better than
+			   128 bits precision. */
+
+			significand(&tmp) = q + 1;
+			setexponent16(&tmp, 63);
+			FPU_normalize(&tmp);
+			tmptag =
+			    FPU_u_mul(&CONST_PI2extra, &tmp, &tmp,
+				      FULL_PRECISION, SIGN_POS,
+				      exponent(&CONST_PI2extra) +
+				      exponent(&tmp));
+			setsign(&tmp, getsign(&CONST_PI2extra));
+			st0_tag = FPU_add(&tmp, tmptag, 0, FULL_PRECISION);
+			if (signnegative(st0_ptr)) {
+				/* CONST_PI2extra is negative, so the result of the addition
+				   can be negative. This means that the argument is actually
+				   in a different quadrant. The correction is always < pi/2,
+				   so it can't overflow into yet another quadrant. */
+				setpositive(st0_ptr);
+				q++;
+			}
+		}
 #endif /* BETTER_THAN_486 */
-    }
+	}
 #ifdef BETTER_THAN_486
-  else
-    {
-      /* So far, the results are exact but based upon a 64 bit
-	 precision approximation to pi/2. The technique used
-	 now is equivalent to using an approximation to pi/2 which
-	 is accurate to about 128 bits. */
-      if ( ((q > 0) && (exponent(st0_ptr) <= exponent(&CONST_PI2extra) + 64))
-	   || (q > 1) )
-	{
-	  /* This code gives the effect of having p/2 to better than
-	     128 bits precision. */
-
-	  significand(&tmp) = q;
-	  setexponent16(&tmp, 63);
-	  FPU_normalize(&tmp);         /* This must return TAG_Valid */
-	  tmptag = FPU_u_mul(&CONST_PI2extra, &tmp, &tmp, FULL_PRECISION,
-			     SIGN_POS,
-			     exponent(&CONST_PI2extra) + exponent(&tmp));
-	  setsign(&tmp, getsign(&CONST_PI2extra));
-	  st0_tag = FPU_sub(LOADED|(tmptag & 0x0f), (int)&tmp,
-			    FULL_PRECISION);
-	  if ( (exponent(st0_ptr) == exponent(&CONST_PI2)) &&
-	      ((st0_ptr->sigh > CONST_PI2.sigh)
-	       || ((st0_ptr->sigh == CONST_PI2.sigh)
-		   && (st0_ptr->sigl > CONST_PI2.sigl))) )
-	    {
-	      /* CONST_PI2extra is negative, so the result of the
-		 subtraction can be larger than pi/2. This means
-		 that the argument is actually in a different quadrant.
-		 The correction is always < pi/2, so it can't overflow
-		 into yet another quadrant. */
-	      st0_tag = FPU_sub(REV|LOADED|TAG_Valid, (int)&CONST_PI2,
-				FULL_PRECISION);
-	      q++;
-	    }
+	else {
+		/* So far, the results are exact but based upon a 64 bit
+		   precision approximation to pi/2. The technique used
+		   now is equivalent to using an approximation to pi/2 which
+		   is accurate to about 128 bits. */
+		if (((q > 0)
+		     && (exponent(st0_ptr) <= exponent(&CONST_PI2extra) + 64))
+		    || (q > 1)) {
+			/* This code gives the effect of having p/2 to better than
+			   128 bits precision. */
+
+			significand(&tmp) = q;
+			setexponent16(&tmp, 63);
+			FPU_normalize(&tmp);	/* This must return TAG_Valid */
+			tmptag =
+			    FPU_u_mul(&CONST_PI2extra, &tmp, &tmp,
+				      FULL_PRECISION, SIGN_POS,
+				      exponent(&CONST_PI2extra) +
+				      exponent(&tmp));
+			setsign(&tmp, getsign(&CONST_PI2extra));
+			st0_tag = FPU_sub(LOADED | (tmptag & 0x0f), (int)&tmp,
+					  FULL_PRECISION);
+			if ((exponent(st0_ptr) == exponent(&CONST_PI2)) &&
+			    ((st0_ptr->sigh > CONST_PI2.sigh)
+			     || ((st0_ptr->sigh == CONST_PI2.sigh)
+				 && (st0_ptr->sigl > CONST_PI2.sigl)))) {
+				/* CONST_PI2extra is negative, so the result of the
+				   subtraction can be larger than pi/2. This means
+				   that the argument is actually in a different quadrant.
+				   The correction is always < pi/2, so it can't overflow
+				   into yet another quadrant. */
+				st0_tag =
+				    FPU_sub(REV | LOADED | TAG_Valid,
+					    (int)&CONST_PI2, FULL_PRECISION);
+				q++;
+			}
+		}
 	}
-    }
 #endif /* BETTER_THAN_486 */
 
-  FPU_settag0(st0_tag);
-  control_word = old_cw;
-  partial_status = saved_status & ~SW_C2;     /* Reduction complete. */
+	FPU_settag0(st0_tag);
+	control_word = old_cw;
+	partial_status = saved_status & ~SW_C2;	/* Reduction complete. */
 
-  return (q & 3) | even;
+	return (q & 3) | even;
 }
 
-
 /* Convert a long to register */
 static void convert_l2reg(long const *arg, int deststnr)
 {
-  int tag;
-  long num = *arg;
-  u_char sign;
-  FPU_REG *dest = &st(deststnr);
-
-  if (num == 0)
-    {
-      FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
-      return;
-    }
-
-  if (num > 0)
-    { sign = SIGN_POS; }
-  else
-    { num = -num; sign = SIGN_NEG; }
-
-  dest->sigh = num;
-  dest->sigl = 0;
-  setexponent16(dest, 31);
-  tag = FPU_normalize(dest);
-  FPU_settagi(deststnr, tag);
-  setsign(dest, sign);
-  return;
-}
+	int tag;
+	long num = *arg;
+	u_char sign;
+	FPU_REG *dest = &st(deststnr);
 
+	if (num == 0) {
+		FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
+		return;
+	}
+
+	if (num > 0) {
+		sign = SIGN_POS;
+	} else {
+		num = -num;
+		sign = SIGN_NEG;
+	}
 
-static void single_arg_error(FPU_REG *st0_ptr, u_char st0_tag)
+	dest->sigh = num;
+	dest->sigl = 0;
+	setexponent16(dest, 31);
+	tag = FPU_normalize(dest);
+	FPU_settagi(deststnr, tag);
+	setsign(dest, sign);
+	return;
+}
+
+static void single_arg_error(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  if ( st0_tag == TAG_Empty )
-    FPU_stack_underflow();  /* Puts a QNaN in st(0) */
-  else if ( st0_tag == TW_NaN )
-    real_1op_NaN(st0_ptr);       /* return with a NaN in st(0) */
+	if (st0_tag == TAG_Empty)
+		FPU_stack_underflow();	/* Puts a QNaN in st(0) */
+	else if (st0_tag == TW_NaN)
+		real_1op_NaN(st0_ptr);	/* return with a NaN in st(0) */
 #ifdef PARANOID
-  else
-    EXCEPTION(EX_INTERNAL|0x0112);
+	else
+		EXCEPTION(EX_INTERNAL | 0x0112);
 #endif /* PARANOID */
 }
 
-
-static void single_arg_2_error(FPU_REG *st0_ptr, u_char st0_tag)
+static void single_arg_2_error(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  int isNaN;
-
-  switch ( st0_tag )
-    {
-    case TW_NaN:
-      isNaN = (exponent(st0_ptr) == EXP_OVER) && (st0_ptr->sigh & 0x80000000);
-      if ( isNaN && !(st0_ptr->sigh & 0x40000000) )   /* Signaling ? */
-	{
-	  EXCEPTION(EX_Invalid);
-	  if ( control_word & CW_Invalid )
-	    {
-	      /* The masked response */
-	      /* Convert to a QNaN */
-	      st0_ptr->sigh |= 0x40000000;
-	      push();
-	      FPU_copy_to_reg0(st0_ptr, TAG_Special);
-	    }
-	}
-      else if ( isNaN )
-	{
-	  /* A QNaN */
-	  push();
-	  FPU_copy_to_reg0(st0_ptr, TAG_Special);
-	}
-      else
-	{
-	  /* pseudoNaN or other unsupported */
-	  EXCEPTION(EX_Invalid);
-	  if ( control_word & CW_Invalid )
-	    {
-	      /* The masked response */
-	      FPU_copy_to_reg0(&CONST_QNaN, TAG_Special);
-	      push();
-	      FPU_copy_to_reg0(&CONST_QNaN, TAG_Special);
-	    }
-	}
-      break;              /* return with a NaN in st(0) */
+	int isNaN;
+
+	switch (st0_tag) {
+	case TW_NaN:
+		isNaN = (exponent(st0_ptr) == EXP_OVER)
+		    && (st0_ptr->sigh & 0x80000000);
+		if (isNaN && !(st0_ptr->sigh & 0x40000000)) {	/* Signaling ? */
+			EXCEPTION(EX_Invalid);
+			if (control_word & CW_Invalid) {
+				/* The masked response */
+				/* Convert to a QNaN */
+				st0_ptr->sigh |= 0x40000000;
+				push();
+				FPU_copy_to_reg0(st0_ptr, TAG_Special);
+			}
+		} else if (isNaN) {
+			/* A QNaN */
+			push();
+			FPU_copy_to_reg0(st0_ptr, TAG_Special);
+		} else {
+			/* pseudoNaN or other unsupported */
+			EXCEPTION(EX_Invalid);
+			if (control_word & CW_Invalid) {
+				/* The masked response */
+				FPU_copy_to_reg0(&CONST_QNaN, TAG_Special);
+				push();
+				FPU_copy_to_reg0(&CONST_QNaN, TAG_Special);
+			}
+		}
+		break;		/* return with a NaN in st(0) */
 #ifdef PARANOID
-    default:
-      EXCEPTION(EX_INTERNAL|0x0112);
+	default:
+		EXCEPTION(EX_INTERNAL | 0x0112);
 #endif /* PARANOID */
-    }
+	}
 }
 
-
 /*---------------------------------------------------------------------------*/
 
-static void f2xm1(FPU_REG *st0_ptr, u_char tag)
+static void f2xm1(FPU_REG * st0_ptr, u_char tag)
 {
-  FPU_REG a;
+	FPU_REG a;
 
-  clear_C1();
+	clear_C1();
 
-  if ( tag == TAG_Valid )
-    {
-      /* For an 80486 FPU, the result is undefined if the arg is >= 1.0 */
-      if ( exponent(st0_ptr) < 0 )
-	{
-	denormal_arg:
+	if (tag == TAG_Valid) {
+		/* For an 80486 FPU, the result is undefined if the arg is >= 1.0 */
+		if (exponent(st0_ptr) < 0) {
+		      denormal_arg:
 
-	  FPU_to_exp16(st0_ptr, &a);
+			FPU_to_exp16(st0_ptr, &a);
 
-	  /* poly_2xm1(x) requires 0 < st(0) < 1. */
-	  poly_2xm1(getsign(st0_ptr), &a, st0_ptr);
+			/* poly_2xm1(x) requires 0 < st(0) < 1. */
+			poly_2xm1(getsign(st0_ptr), &a, st0_ptr);
+		}
+		set_precision_flag_up();	/* 80486 appears to always do this */
+		return;
 	}
-      set_precision_flag_up();   /* 80486 appears to always do this */
-      return;
-    }
 
-  if ( tag == TAG_Zero )
-    return;
+	if (tag == TAG_Zero)
+		return;
 
-  if ( tag == TAG_Special )
-    tag = FPU_Special(st0_ptr);
+	if (tag == TAG_Special)
+		tag = FPU_Special(st0_ptr);
 
-  switch ( tag )
-    {
-    case TW_Denormal:
-      if ( denormal_operand() < 0 )
-	return;
-      goto denormal_arg;
-    case TW_Infinity:
-      if ( signnegative(st0_ptr) )
-	{
-	  /* -infinity gives -1 (p16-10) */
-	  FPU_copy_to_reg0(&CONST_1, TAG_Valid);
-	  setnegative(st0_ptr);
+	switch (tag) {
+	case TW_Denormal:
+		if (denormal_operand() < 0)
+			return;
+		goto denormal_arg;
+	case TW_Infinity:
+		if (signnegative(st0_ptr)) {
+			/* -infinity gives -1 (p16-10) */
+			FPU_copy_to_reg0(&CONST_1, TAG_Valid);
+			setnegative(st0_ptr);
+		}
+		return;
+	default:
+		single_arg_error(st0_ptr, tag);
 	}
-      return;
-    default:
-      single_arg_error(st0_ptr, tag);
-    }
 }
 
-
-static void fptan(FPU_REG *st0_ptr, u_char st0_tag)
+static void fptan(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  FPU_REG *st_new_ptr;
-  int q;
-  u_char arg_sign = getsign(st0_ptr);
-
-  /* Stack underflow has higher priority */
-  if ( st0_tag == TAG_Empty )
-    {
-      FPU_stack_underflow();  /* Puts a QNaN in st(0) */
-      if ( control_word & CW_Invalid )
-	{
-	  st_new_ptr = &st(-1);
-	  push();
-	  FPU_stack_underflow();  /* Puts a QNaN in the new st(0) */
+	FPU_REG *st_new_ptr;
+	int q;
+	u_char arg_sign = getsign(st0_ptr);
+
+	/* Stack underflow has higher priority */
+	if (st0_tag == TAG_Empty) {
+		FPU_stack_underflow();	/* Puts a QNaN in st(0) */
+		if (control_word & CW_Invalid) {
+			st_new_ptr = &st(-1);
+			push();
+			FPU_stack_underflow();	/* Puts a QNaN in the new st(0) */
+		}
+		return;
 	}
-      return;
-    }
-
-  if ( STACK_OVERFLOW )
-    { FPU_stack_overflow(); return; }
-
-  if ( st0_tag == TAG_Valid )
-    {
-      if ( exponent(st0_ptr) > -40 )
-	{
-	  if ( (q = trig_arg(st0_ptr, 0)) == -1 )
-	    {
-	      /* Operand is out of range */
-	      return;
-	    }
-
-	  poly_tan(st0_ptr);
-	  setsign(st0_ptr, (q & 1) ^ (arg_sign != 0));
-	  set_precision_flag_up();  /* We do not really know if up or down */
+
+	if (STACK_OVERFLOW) {
+		FPU_stack_overflow();
+		return;
 	}
-      else
-	{
-	  /* For a small arg, the result == the argument */
-	  /* Underflow may happen */
 
-	denormal_arg:
+	if (st0_tag == TAG_Valid) {
+		if (exponent(st0_ptr) > -40) {
+			if ((q = trig_arg(st0_ptr, 0)) == -1) {
+				/* Operand is out of range */
+				return;
+			}
+
+			poly_tan(st0_ptr);
+			setsign(st0_ptr, (q & 1) ^ (arg_sign != 0));
+			set_precision_flag_up();	/* We do not really know if up or down */
+		} else {
+			/* For a small arg, the result == the argument */
+			/* Underflow may happen */
+
+		      denormal_arg:
+
+			FPU_to_exp16(st0_ptr, st0_ptr);
 
-	  FPU_to_exp16(st0_ptr, st0_ptr);
-      
-	  st0_tag = FPU_round(st0_ptr, 1, 0, FULL_PRECISION, arg_sign);
-	  FPU_settag0(st0_tag);
+			st0_tag =
+			    FPU_round(st0_ptr, 1, 0, FULL_PRECISION, arg_sign);
+			FPU_settag0(st0_tag);
+		}
+		push();
+		FPU_copy_to_reg0(&CONST_1, TAG_Valid);
+		return;
 	}
-      push();
-      FPU_copy_to_reg0(&CONST_1, TAG_Valid);
-      return;
-    }
-
-  if ( st0_tag == TAG_Zero )
-    {
-      push();
-      FPU_copy_to_reg0(&CONST_1, TAG_Valid);
-      setcc(0);
-      return;
-    }
-
-  if ( st0_tag == TAG_Special )
-    st0_tag = FPU_Special(st0_ptr);
-
-  if ( st0_tag == TW_Denormal )
-    {
-      if ( denormal_operand() < 0 )
-	return;
 
-      goto denormal_arg;
-    }
-
-  if ( st0_tag == TW_Infinity )
-    {
-      /* The 80486 treats infinity as an invalid operand */
-      if ( arith_invalid(0) >= 0 )
-	{
-	  st_new_ptr = &st(-1);
-	  push();
-	  arith_invalid(0);
+	if (st0_tag == TAG_Zero) {
+		push();
+		FPU_copy_to_reg0(&CONST_1, TAG_Valid);
+		setcc(0);
+		return;
+	}
+
+	if (st0_tag == TAG_Special)
+		st0_tag = FPU_Special(st0_ptr);
+
+	if (st0_tag == TW_Denormal) {
+		if (denormal_operand() < 0)
+			return;
+
+		goto denormal_arg;
 	}
-      return;
-    }
 
-  single_arg_2_error(st0_ptr, st0_tag);
-}
+	if (st0_tag == TW_Infinity) {
+		/* The 80486 treats infinity as an invalid operand */
+		if (arith_invalid(0) >= 0) {
+			st_new_ptr = &st(-1);
+			push();
+			arith_invalid(0);
+		}
+		return;
+	}
 
+	single_arg_2_error(st0_ptr, st0_tag);
+}
 
-static void fxtract(FPU_REG *st0_ptr, u_char st0_tag)
+static void fxtract(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  FPU_REG *st_new_ptr;
-  u_char sign;
-  register FPU_REG *st1_ptr = st0_ptr;  /* anticipate */
-
-  if ( STACK_OVERFLOW )
-    {  FPU_stack_overflow(); return; }
-
-  clear_C1();
-
-  if ( st0_tag == TAG_Valid )
-    {
-      long e;
-
-      push();
-      sign = getsign(st1_ptr);
-      reg_copy(st1_ptr, st_new_ptr);
-      setexponent16(st_new_ptr, exponent(st_new_ptr));
-
-    denormal_arg:
-
-      e = exponent16(st_new_ptr);
-      convert_l2reg(&e, 1);
-      setexponentpos(st_new_ptr, 0);
-      setsign(st_new_ptr, sign);
-      FPU_settag0(TAG_Valid);       /* Needed if arg was a denormal */
-      return;
-    }
-  else if ( st0_tag == TAG_Zero )
-    {
-      sign = getsign(st0_ptr);
-
-      if ( FPU_divide_by_zero(0, SIGN_NEG) < 0 )
-	return;
+	FPU_REG *st_new_ptr;
+	u_char sign;
+	register FPU_REG *st1_ptr = st0_ptr;	/* anticipate */
 
-      push();
-      FPU_copy_to_reg0(&CONST_Z, TAG_Zero);
-      setsign(st_new_ptr, sign);
-      return;
-    }
+	if (STACK_OVERFLOW) {
+		FPU_stack_overflow();
+		return;
+	}
 
-  if ( st0_tag == TAG_Special )
-    st0_tag = FPU_Special(st0_ptr);
+	clear_C1();
 
-  if ( st0_tag == TW_Denormal )
-    {
-      if (denormal_operand() < 0 )
-	return;
+	if (st0_tag == TAG_Valid) {
+		long e;
 
-      push();
-      sign = getsign(st1_ptr);
-      FPU_to_exp16(st1_ptr, st_new_ptr);
-      goto denormal_arg;
-    }
-  else if ( st0_tag == TW_Infinity )
-    {
-      sign = getsign(st0_ptr);
-      setpositive(st0_ptr);
-      push();
-      FPU_copy_to_reg0(&CONST_INF, TAG_Special);
-      setsign(st_new_ptr, sign);
-      return;
-    }
-  else if ( st0_tag == TW_NaN )
-    {
-      if ( real_1op_NaN(st0_ptr) < 0 )
-	return;
+		push();
+		sign = getsign(st1_ptr);
+		reg_copy(st1_ptr, st_new_ptr);
+		setexponent16(st_new_ptr, exponent(st_new_ptr));
+
+	      denormal_arg:
+
+		e = exponent16(st_new_ptr);
+		convert_l2reg(&e, 1);
+		setexponentpos(st_new_ptr, 0);
+		setsign(st_new_ptr, sign);
+		FPU_settag0(TAG_Valid);	/* Needed if arg was a denormal */
+		return;
+	} else if (st0_tag == TAG_Zero) {
+		sign = getsign(st0_ptr);
+
+		if (FPU_divide_by_zero(0, SIGN_NEG) < 0)
+			return;
 
-      push();
-      FPU_copy_to_reg0(st0_ptr, TAG_Special);
-      return;
-    }
-  else if ( st0_tag == TAG_Empty )
-    {
-      /* Is this the correct behaviour? */
-      if ( control_word & EX_Invalid )
-	{
-	  FPU_stack_underflow();
-	  push();
-	  FPU_stack_underflow();
+		push();
+		FPU_copy_to_reg0(&CONST_Z, TAG_Zero);
+		setsign(st_new_ptr, sign);
+		return;
+	}
+
+	if (st0_tag == TAG_Special)
+		st0_tag = FPU_Special(st0_ptr);
+
+	if (st0_tag == TW_Denormal) {
+		if (denormal_operand() < 0)
+			return;
+
+		push();
+		sign = getsign(st1_ptr);
+		FPU_to_exp16(st1_ptr, st_new_ptr);
+		goto denormal_arg;
+	} else if (st0_tag == TW_Infinity) {
+		sign = getsign(st0_ptr);
+		setpositive(st0_ptr);
+		push();
+		FPU_copy_to_reg0(&CONST_INF, TAG_Special);
+		setsign(st_new_ptr, sign);
+		return;
+	} else if (st0_tag == TW_NaN) {
+		if (real_1op_NaN(st0_ptr) < 0)
+			return;
+
+		push();
+		FPU_copy_to_reg0(st0_ptr, TAG_Special);
+		return;
+	} else if (st0_tag == TAG_Empty) {
+		/* Is this the correct behaviour? */
+		if (control_word & EX_Invalid) {
+			FPU_stack_underflow();
+			push();
+			FPU_stack_underflow();
+		} else
+			EXCEPTION(EX_StackUnder);
 	}
-      else
-	EXCEPTION(EX_StackUnder);
-    }
 #ifdef PARANOID
-  else
-    EXCEPTION(EX_INTERNAL | 0x119);
+	else
+		EXCEPTION(EX_INTERNAL | 0x119);
 #endif /* PARANOID */
 }
 
-
 static void fdecstp(void)
 {
-  clear_C1();
-  top--;
+	clear_C1();
+	top--;
 }
 
 static void fincstp(void)
 {
-  clear_C1();
-  top++;
+	clear_C1();
+	top++;
 }
 
-
-static void fsqrt_(FPU_REG *st0_ptr, u_char st0_tag)
+static void fsqrt_(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  int expon;
-
-  clear_C1();
-
-  if ( st0_tag == TAG_Valid )
-    {
-      u_char tag;
-      
-      if (signnegative(st0_ptr))
-	{
-	  arith_invalid(0);  /* sqrt(negative) is invalid */
-	  return;
-	}
+	int expon;
+
+	clear_C1();
 
-      /* make st(0) in  [1.0 .. 4.0) */
-      expon = exponent(st0_ptr);
-
-    denormal_arg:
-
-      setexponent16(st0_ptr, (expon & 1));
-
-      /* Do the computation, the sign of the result will be positive. */
-      tag = wm_sqrt(st0_ptr, 0, 0, control_word, SIGN_POS);
-      addexponent(st0_ptr, expon >> 1);
-      FPU_settag0(tag);
-      return;
-    }
-
-  if ( st0_tag == TAG_Zero )
-    return;
-
-  if ( st0_tag == TAG_Special )
-    st0_tag = FPU_Special(st0_ptr);
-
-  if ( st0_tag == TW_Infinity )
-    {
-      if ( signnegative(st0_ptr) )
-	arith_invalid(0);  /* sqrt(-Infinity) is invalid */
-      return;
-    }
-  else if ( st0_tag == TW_Denormal )
-    {
-      if (signnegative(st0_ptr))
-	{
-	  arith_invalid(0);  /* sqrt(negative) is invalid */
-	  return;
+	if (st0_tag == TAG_Valid) {
+		u_char tag;
+
+		if (signnegative(st0_ptr)) {
+			arith_invalid(0);	/* sqrt(negative) is invalid */
+			return;
+		}
+
+		/* make st(0) in  [1.0 .. 4.0) */
+		expon = exponent(st0_ptr);
+
+	      denormal_arg:
+
+		setexponent16(st0_ptr, (expon & 1));
+
+		/* Do the computation, the sign of the result will be positive. */
+		tag = wm_sqrt(st0_ptr, 0, 0, control_word, SIGN_POS);
+		addexponent(st0_ptr, expon >> 1);
+		FPU_settag0(tag);
+		return;
 	}
 
-      if ( denormal_operand() < 0 )
-	return;
+	if (st0_tag == TAG_Zero)
+		return;
 
-      FPU_to_exp16(st0_ptr, st0_ptr);
+	if (st0_tag == TAG_Special)
+		st0_tag = FPU_Special(st0_ptr);
 
-      expon = exponent16(st0_ptr);
+	if (st0_tag == TW_Infinity) {
+		if (signnegative(st0_ptr))
+			arith_invalid(0);	/* sqrt(-Infinity) is invalid */
+		return;
+	} else if (st0_tag == TW_Denormal) {
+		if (signnegative(st0_ptr)) {
+			arith_invalid(0);	/* sqrt(negative) is invalid */
+			return;
+		}
 
-      goto denormal_arg;
-    }
+		if (denormal_operand() < 0)
+			return;
 
-  single_arg_error(st0_ptr, st0_tag);
+		FPU_to_exp16(st0_ptr, st0_ptr);
 
-}
+		expon = exponent16(st0_ptr);
+
+		goto denormal_arg;
+	}
 
+	single_arg_error(st0_ptr, st0_tag);
 
-static void frndint_(FPU_REG *st0_ptr, u_char st0_tag)
+}
+
+static void frndint_(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  int flags, tag;
+	int flags, tag;
 
-  if ( st0_tag == TAG_Valid )
-    {
-      u_char sign;
+	if (st0_tag == TAG_Valid) {
+		u_char sign;
 
-    denormal_arg:
+	      denormal_arg:
 
-      sign = getsign(st0_ptr);
+		sign = getsign(st0_ptr);
 
-      if (exponent(st0_ptr) > 63)
-	return;
+		if (exponent(st0_ptr) > 63)
+			return;
+
+		if (st0_tag == TW_Denormal) {
+			if (denormal_operand() < 0)
+				return;
+		}
+
+		/* Fortunately, this can't overflow to 2^64 */
+		if ((flags = FPU_round_to_int(st0_ptr, st0_tag)))
+			set_precision_flag(flags);
 
-      if ( st0_tag == TW_Denormal )
-	{
-	  if (denormal_operand() < 0 )
-	    return;
+		setexponent16(st0_ptr, 63);
+		tag = FPU_normalize(st0_ptr);
+		setsign(st0_ptr, sign);
+		FPU_settag0(tag);
+		return;
 	}
 
-      /* Fortunately, this can't overflow to 2^64 */
-      if ( (flags = FPU_round_to_int(st0_ptr, st0_tag)) )
-	set_precision_flag(flags);
-
-      setexponent16(st0_ptr, 63);
-      tag = FPU_normalize(st0_ptr);
-      setsign(st0_ptr, sign);
-      FPU_settag0(tag);
-      return;
-    }
-
-  if ( st0_tag == TAG_Zero )
-    return;
-
-  if ( st0_tag == TAG_Special )
-    st0_tag = FPU_Special(st0_ptr);
-
-  if ( st0_tag == TW_Denormal )
-    goto denormal_arg;
-  else if ( st0_tag == TW_Infinity )
-    return;
-  else
-    single_arg_error(st0_ptr, st0_tag);
-}
+	if (st0_tag == TAG_Zero)
+		return;
 
+	if (st0_tag == TAG_Special)
+		st0_tag = FPU_Special(st0_ptr);
 
-static int fsin(FPU_REG *st0_ptr, u_char tag)
+	if (st0_tag == TW_Denormal)
+		goto denormal_arg;
+	else if (st0_tag == TW_Infinity)
+		return;
+	else
+		single_arg_error(st0_ptr, st0_tag);
+}
+
+static int fsin(FPU_REG * st0_ptr, u_char tag)
 {
-  u_char arg_sign = getsign(st0_ptr);
-
-  if ( tag == TAG_Valid )
-    {
-      int q;
-
-      if ( exponent(st0_ptr) > -40 )
-	{
-	  if ( (q = trig_arg(st0_ptr, 0)) == -1 )
-	    {
-	      /* Operand is out of range */
-	      return 1;
-	    }
-
-	  poly_sine(st0_ptr);
-	  
-	  if (q & 2)
-	    changesign(st0_ptr);
-
-	  setsign(st0_ptr, getsign(st0_ptr) ^ arg_sign);
-
-	  /* We do not really know if up or down */
-	  set_precision_flag_up();
-	  return 0;
+	u_char arg_sign = getsign(st0_ptr);
+
+	if (tag == TAG_Valid) {
+		int q;
+
+		if (exponent(st0_ptr) > -40) {
+			if ((q = trig_arg(st0_ptr, 0)) == -1) {
+				/* Operand is out of range */
+				return 1;
+			}
+
+			poly_sine(st0_ptr);
+
+			if (q & 2)
+				changesign(st0_ptr);
+
+			setsign(st0_ptr, getsign(st0_ptr) ^ arg_sign);
+
+			/* We do not really know if up or down */
+			set_precision_flag_up();
+			return 0;
+		} else {
+			/* For a small arg, the result == the argument */
+			set_precision_flag_up();	/* Must be up. */
+			return 0;
+		}
 	}
-      else
-	{
-	  /* For a small arg, the result == the argument */
-	  set_precision_flag_up();  /* Must be up. */
-	  return 0;
+
+	if (tag == TAG_Zero) {
+		setcc(0);
+		return 0;
 	}
-    }
-
-  if ( tag == TAG_Zero )
-    {
-      setcc(0);
-      return 0;
-    }
-
-  if ( tag == TAG_Special )
-    tag = FPU_Special(st0_ptr);
-
-  if ( tag == TW_Denormal )
-    {
-      if ( denormal_operand() < 0 )
-	return 1;
-
-      /* For a small arg, the result == the argument */
-      /* Underflow may happen */
-      FPU_to_exp16(st0_ptr, st0_ptr);
-      
-      tag = FPU_round(st0_ptr, 1, 0, FULL_PRECISION, arg_sign);
-
-      FPU_settag0(tag);
-
-      return 0;
-    }
-  else if ( tag == TW_Infinity )
-    {
-      /* The 80486 treats infinity as an invalid operand */
-      arith_invalid(0);
-      return 1;
-    }
-  else
-    {
-      single_arg_error(st0_ptr, tag);
-      return 1;
-    }
-}
 
+	if (tag == TAG_Special)
+		tag = FPU_Special(st0_ptr);
 
-static int f_cos(FPU_REG *st0_ptr, u_char tag)
-{
-  u_char st0_sign;
-
-  st0_sign = getsign(st0_ptr);
-
-  if ( tag == TAG_Valid )
-    {
-      int q;
-
-      if ( exponent(st0_ptr) > -40 )
-	{
-	  if ( (exponent(st0_ptr) < 0)
-	      || ((exponent(st0_ptr) == 0)
-		  && (significand(st0_ptr) <= 0xc90fdaa22168c234LL)) )
-	    {
-	      poly_cos(st0_ptr);
-
-	      /* We do not really know if up or down */
-	      set_precision_flag_down();
-	  
-	      return 0;
-	    }
-	  else if ( (q = trig_arg(st0_ptr, FCOS)) != -1 )
-	    {
-	      poly_sine(st0_ptr);
-
-	      if ((q+1) & 2)
-		changesign(st0_ptr);
-
-	      /* We do not really know if up or down */
-	      set_precision_flag_down();
-	  
-	      return 0;
-	    }
-	  else
-	    {
-	      /* Operand is out of range */
-	      return 1;
-	    }
+	if (tag == TW_Denormal) {
+		if (denormal_operand() < 0)
+			return 1;
+
+		/* For a small arg, the result == the argument */
+		/* Underflow may happen */
+		FPU_to_exp16(st0_ptr, st0_ptr);
+
+		tag = FPU_round(st0_ptr, 1, 0, FULL_PRECISION, arg_sign);
+
+		FPU_settag0(tag);
+
+		return 0;
+	} else if (tag == TW_Infinity) {
+		/* The 80486 treats infinity as an invalid operand */
+		arith_invalid(0);
+		return 1;
+	} else {
+		single_arg_error(st0_ptr, tag);
+		return 1;
 	}
-      else
-	{
-	denormal_arg:
+}
+
+static int f_cos(FPU_REG * st0_ptr, u_char tag)
+{
+	u_char st0_sign;
+
+	st0_sign = getsign(st0_ptr);
 
-	  setcc(0);
-	  FPU_copy_to_reg0(&CONST_1, TAG_Valid);
+	if (tag == TAG_Valid) {
+		int q;
+
+		if (exponent(st0_ptr) > -40) {
+			if ((exponent(st0_ptr) < 0)
+			    || ((exponent(st0_ptr) == 0)
+				&& (significand(st0_ptr) <=
+				    0xc90fdaa22168c234LL))) {
+				poly_cos(st0_ptr);
+
+				/* We do not really know if up or down */
+				set_precision_flag_down();
+
+				return 0;
+			} else if ((q = trig_arg(st0_ptr, FCOS)) != -1) {
+				poly_sine(st0_ptr);
+
+				if ((q + 1) & 2)
+					changesign(st0_ptr);
+
+				/* We do not really know if up or down */
+				set_precision_flag_down();
+
+				return 0;
+			} else {
+				/* Operand is out of range */
+				return 1;
+			}
+		} else {
+		      denormal_arg:
+
+			setcc(0);
+			FPU_copy_to_reg0(&CONST_1, TAG_Valid);
 #ifdef PECULIAR_486
-	  set_precision_flag_down();  /* 80486 appears to do this. */
+			set_precision_flag_down();	/* 80486 appears to do this. */
 #else
-	  set_precision_flag_up();  /* Must be up. */
+			set_precision_flag_up();	/* Must be up. */
 #endif /* PECULIAR_486 */
-	  return 0;
+			return 0;
+		}
+	} else if (tag == TAG_Zero) {
+		FPU_copy_to_reg0(&CONST_1, TAG_Valid);
+		setcc(0);
+		return 0;
 	}
-    }
-  else if ( tag == TAG_Zero )
-    {
-      FPU_copy_to_reg0(&CONST_1, TAG_Valid);
-      setcc(0);
-      return 0;
-    }
-
-  if ( tag == TAG_Special )
-    tag = FPU_Special(st0_ptr);
-
-  if ( tag == TW_Denormal )
-    {
-      if ( denormal_operand() < 0 )
-	return 1;
-
-      goto denormal_arg;
-    }
-  else if ( tag == TW_Infinity )
-    {
-      /* The 80486 treats infinity as an invalid operand */
-      arith_invalid(0);
-      return 1;
-    }
-  else
-    {
-      single_arg_error(st0_ptr, tag);  /* requires st0_ptr == &st(0) */
-      return 1;
-    }
-}
 
+	if (tag == TAG_Special)
+		tag = FPU_Special(st0_ptr);
+
+	if (tag == TW_Denormal) {
+		if (denormal_operand() < 0)
+			return 1;
+
+		goto denormal_arg;
+	} else if (tag == TW_Infinity) {
+		/* The 80486 treats infinity as an invalid operand */
+		arith_invalid(0);
+		return 1;
+	} else {
+		single_arg_error(st0_ptr, tag);	/* requires st0_ptr == &st(0) */
+		return 1;
+	}
+}
 
-static void fcos(FPU_REG *st0_ptr, u_char st0_tag)
+static void fcos(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  f_cos(st0_ptr, st0_tag);
+	f_cos(st0_ptr, st0_tag);
 }
 
-
-static void fsincos(FPU_REG *st0_ptr, u_char st0_tag)
+static void fsincos(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  FPU_REG *st_new_ptr;
-  FPU_REG arg;
-  u_char tag;
-
-  /* Stack underflow has higher priority */
-  if ( st0_tag == TAG_Empty )
-    {
-      FPU_stack_underflow();  /* Puts a QNaN in st(0) */
-      if ( control_word & CW_Invalid )
-	{
-	  st_new_ptr = &st(-1);
-	  push();
-	  FPU_stack_underflow();  /* Puts a QNaN in the new st(0) */
+	FPU_REG *st_new_ptr;
+	FPU_REG arg;
+	u_char tag;
+
+	/* Stack underflow has higher priority */
+	if (st0_tag == TAG_Empty) {
+		FPU_stack_underflow();	/* Puts a QNaN in st(0) */
+		if (control_word & CW_Invalid) {
+			st_new_ptr = &st(-1);
+			push();
+			FPU_stack_underflow();	/* Puts a QNaN in the new st(0) */
+		}
+		return;
 	}
-      return;
-    }
-
-  if ( STACK_OVERFLOW )
-    { FPU_stack_overflow(); return; }
-
-  if ( st0_tag == TAG_Special )
-    tag = FPU_Special(st0_ptr);
-  else
-    tag = st0_tag;
-
-  if ( tag == TW_NaN )
-    {
-      single_arg_2_error(st0_ptr, TW_NaN);
-      return;
-    }
-  else if ( tag == TW_Infinity )
-    {
-      /* The 80486 treats infinity as an invalid operand */
-      if ( arith_invalid(0) >= 0 )
-	{
-	  /* Masked response */
-	  push();
-	  arith_invalid(0);
+
+	if (STACK_OVERFLOW) {
+		FPU_stack_overflow();
+		return;
 	}
-      return;
-    }
-
-  reg_copy(st0_ptr, &arg);
-  if ( !fsin(st0_ptr, st0_tag) )
-    {
-      push();
-      FPU_copy_to_reg0(&arg, st0_tag);
-      f_cos(&st(0), st0_tag);
-    }
-  else
-    {
-      /* An error, so restore st(0) */
-      FPU_copy_to_reg0(&arg, st0_tag);
-    }
-}
 
+	if (st0_tag == TAG_Special)
+		tag = FPU_Special(st0_ptr);
+	else
+		tag = st0_tag;
+
+	if (tag == TW_NaN) {
+		single_arg_2_error(st0_ptr, TW_NaN);
+		return;
+	} else if (tag == TW_Infinity) {
+		/* The 80486 treats infinity as an invalid operand */
+		if (arith_invalid(0) >= 0) {
+			/* Masked response */
+			push();
+			arith_invalid(0);
+		}
+		return;
+	}
+
+	reg_copy(st0_ptr, &arg);
+	if (!fsin(st0_ptr, st0_tag)) {
+		push();
+		FPU_copy_to_reg0(&arg, st0_tag);
+		f_cos(&st(0), st0_tag);
+	} else {
+		/* An error, so restore st(0) */
+		FPU_copy_to_reg0(&arg, st0_tag);
+	}
+}
 
 /*---------------------------------------------------------------------------*/
 /* The following all require two arguments: st(0) and st(1) */
@@ -826,1020 +743,901 @@ static void fsincos(FPU_REG *st0_ptr, u_char st0_tag)
    result must be zero.
  */
 static void rem_kernel(unsigned long long st0, unsigned long long *y,
-		       unsigned long long st1,
-		       unsigned long long q, int n)
+		       unsigned long long st1, unsigned long long q, int n)
 {
-  int dummy;
-  unsigned long long x;
-
-  x = st0 << n;
-
-  /* Do the required multiplication and subtraction in the one operation */
-
-  /* lsw x -= lsw st1 * lsw q */
-  asm volatile ("mull %4; subl %%eax,%0; sbbl %%edx,%1"
-		:"=m" (((unsigned *)&x)[0]), "=m" (((unsigned *)&x)[1]),
-		"=a" (dummy)
-		:"2" (((unsigned *)&st1)[0]), "m" (((unsigned *)&q)[0])
-		:"%dx");
-  /* msw x -= msw st1 * lsw q */
-  asm volatile ("mull %3; subl %%eax,%0"
-		:"=m" (((unsigned *)&x)[1]), "=a" (dummy)
-		:"1" (((unsigned *)&st1)[1]), "m" (((unsigned *)&q)[0])
-		:"%dx");
-  /* msw x -= lsw st1 * msw q */
-  asm volatile ("mull %3; subl %%eax,%0"
-		:"=m" (((unsigned *)&x)[1]), "=a" (dummy)
-		:"1" (((unsigned *)&st1)[0]), "m" (((unsigned *)&q)[1])
-		:"%dx");
-
-  *y = x;
+	int dummy;
+	unsigned long long x;
+
+	x = st0 << n;
+
+	/* Do the required multiplication and subtraction in the one operation */
+
+	/* lsw x -= lsw st1 * lsw q */
+	asm volatile ("mull %4; subl %%eax,%0; sbbl %%edx,%1":"=m"
+		      (((unsigned *)&x)[0]), "=m"(((unsigned *)&x)[1]),
+		      "=a"(dummy)
+		      :"2"(((unsigned *)&st1)[0]), "m"(((unsigned *)&q)[0])
+		      :"%dx");
+	/* msw x -= msw st1 * lsw q */
+	asm volatile ("mull %3; subl %%eax,%0":"=m" (((unsigned *)&x)[1]),
+		      "=a"(dummy)
+		      :"1"(((unsigned *)&st1)[1]), "m"(((unsigned *)&q)[0])
+		      :"%dx");
+	/* msw x -= lsw st1 * msw q */
+	asm volatile ("mull %3; subl %%eax,%0":"=m" (((unsigned *)&x)[1]),
+		      "=a"(dummy)
+		      :"1"(((unsigned *)&st1)[0]), "m"(((unsigned *)&q)[1])
+		      :"%dx");
+
+	*y = x;
 }
 
-
 /* Remainder of st(0) / st(1) */
 /* This routine produces exact results, i.e. there is never any
    rounding or truncation, etc of the result. */
-static void do_fprem(FPU_REG *st0_ptr, u_char st0_tag, int round)
+static void do_fprem(FPU_REG * st0_ptr, u_char st0_tag, int round)
 {
-  FPU_REG *st1_ptr = &st(1);
-  u_char st1_tag = FPU_gettagi(1);
-
-  if ( !((st0_tag ^ TAG_Valid) | (st1_tag ^ TAG_Valid)) )
-    {
-      FPU_REG tmp, st0, st1;
-      u_char st0_sign, st1_sign;
-      u_char tmptag;
-      int tag;
-      int old_cw;
-      int expdif;
-      long long q;
-      unsigned short saved_status;
-      int cc;
-
-    fprem_valid:
-      /* Convert registers for internal use. */
-      st0_sign = FPU_to_exp16(st0_ptr, &st0);
-      st1_sign = FPU_to_exp16(st1_ptr, &st1);
-      expdif = exponent16(&st0) - exponent16(&st1);
-
-      old_cw = control_word;
-      cc = 0;
-
-      /* We want the status following the denorm tests, but don't want
-	 the status changed by the arithmetic operations. */
-      saved_status = partial_status;
-      control_word &= ~CW_RC;
-      control_word |= RC_CHOP;
-
-      if ( expdif < 64 )
-	{
-	  /* This should be the most common case */
-
-	  if ( expdif > -2 )
-	    {
-	      u_char sign = st0_sign ^ st1_sign;
-	      tag = FPU_u_div(&st0, &st1, &tmp,
-			      PR_64_BITS | RC_CHOP | 0x3f,
-			      sign);
-	      setsign(&tmp, sign);
-
-	      if ( exponent(&tmp) >= 0 )
-		{
-		  FPU_round_to_int(&tmp, tag);  /* Fortunately, this can't
-						   overflow to 2^64 */
-		  q = significand(&tmp);
-
-		  rem_kernel(significand(&st0),
-			     &significand(&tmp),
-			     significand(&st1),
-			     q, expdif);
-
-		  setexponent16(&tmp, exponent16(&st1));
-		}
-	      else
-		{
-		  reg_copy(&st0, &tmp);
-		  q = 0;
-		}
-
-	      if ( (round == RC_RND) && (tmp.sigh & 0xc0000000) )
-		{
-		  /* We may need to subtract st(1) once more,
-		     to get a result <= 1/2 of st(1). */
-		  unsigned long long x;
-		  expdif = exponent16(&st1) - exponent16(&tmp);
-		  if ( expdif <= 1 )
-		    {
-		      if ( expdif == 0 )
-			x = significand(&st1) - significand(&tmp);
-		      else /* expdif is 1 */
-			x = (significand(&st1) << 1) - significand(&tmp);
-		      if ( (x < significand(&tmp)) ||
-			  /* or equi-distant (from 0 & st(1)) and q is odd */
-			  ((x == significand(&tmp)) && (q & 1) ) )
-			{
-			  st0_sign = ! st0_sign;
-			  significand(&tmp) = x;
-			  q++;
+	FPU_REG *st1_ptr = &st(1);
+	u_char st1_tag = FPU_gettagi(1);
+
+	if (!((st0_tag ^ TAG_Valid) | (st1_tag ^ TAG_Valid))) {
+		FPU_REG tmp, st0, st1;
+		u_char st0_sign, st1_sign;
+		u_char tmptag;
+		int tag;
+		int old_cw;
+		int expdif;
+		long long q;
+		unsigned short saved_status;
+		int cc;
+
+	      fprem_valid:
+		/* Convert registers for internal use. */
+		st0_sign = FPU_to_exp16(st0_ptr, &st0);
+		st1_sign = FPU_to_exp16(st1_ptr, &st1);
+		expdif = exponent16(&st0) - exponent16(&st1);
+
+		old_cw = control_word;
+		cc = 0;
+
+		/* We want the status following the denorm tests, but don't want
+		   the status changed by the arithmetic operations. */
+		saved_status = partial_status;
+		control_word &= ~CW_RC;
+		control_word |= RC_CHOP;
+
+		if (expdif < 64) {
+			/* This should be the most common case */
+
+			if (expdif > -2) {
+				u_char sign = st0_sign ^ st1_sign;
+				tag = FPU_u_div(&st0, &st1, &tmp,
+						PR_64_BITS | RC_CHOP | 0x3f,
+						sign);
+				setsign(&tmp, sign);
+
+				if (exponent(&tmp) >= 0) {
+					FPU_round_to_int(&tmp, tag);	/* Fortunately, this can't
+									   overflow to 2^64 */
+					q = significand(&tmp);
+
+					rem_kernel(significand(&st0),
+						   &significand(&tmp),
+						   significand(&st1),
+						   q, expdif);
+
+					setexponent16(&tmp, exponent16(&st1));
+				} else {
+					reg_copy(&st0, &tmp);
+					q = 0;
+				}
+
+				if ((round == RC_RND)
+				    && (tmp.sigh & 0xc0000000)) {
+					/* We may need to subtract st(1) once more,
+					   to get a result <= 1/2 of st(1). */
+					unsigned long long x;
+					expdif =
+					    exponent16(&st1) - exponent16(&tmp);
+					if (expdif <= 1) {
+						if (expdif == 0)
+							x = significand(&st1) -
+							    significand(&tmp);
+						else	/* expdif is 1 */
+							x = (significand(&st1)
+							     << 1) -
+							    significand(&tmp);
+						if ((x < significand(&tmp)) ||
+						    /* or equi-distant (from 0 & st(1)) and q is odd */
+						    ((x == significand(&tmp))
+						     && (q & 1))) {
+							st0_sign = !st0_sign;
+							significand(&tmp) = x;
+							q++;
+						}
+					}
+				}
+
+				if (q & 4)
+					cc |= SW_C0;
+				if (q & 2)
+					cc |= SW_C3;
+				if (q & 1)
+					cc |= SW_C1;
+			} else {
+				control_word = old_cw;
+				setcc(0);
+				return;
 			}
-		    }
-		}
-
-	      if (q & 4) cc |= SW_C0;
-	      if (q & 2) cc |= SW_C3;
-	      if (q & 1) cc |= SW_C1;
-	    }
-	  else
-	    {
-	      control_word = old_cw;
-	      setcc(0);
-	      return;
-	    }
-	}
-      else
-	{
-	  /* There is a large exponent difference ( >= 64 ) */
-	  /* To make much sense, the code in this section should
-	     be done at high precision. */
-	  int exp_1, N;
-	  u_char sign;
-
-	  /* prevent overflow here */
-	  /* N is 'a number between 32 and 63' (p26-113) */
-	  reg_copy(&st0, &tmp);
-	  tmptag = st0_tag;
-	  N = (expdif & 0x0000001f) + 32;  /* This choice gives results
-					      identical to an AMD 486 */
-	  setexponent16(&tmp, N);
-	  exp_1 = exponent16(&st1);
-	  setexponent16(&st1, 0);
-	  expdif -= N;
-
-	  sign = getsign(&tmp) ^ st1_sign;
-	  tag = FPU_u_div(&tmp, &st1, &tmp, PR_64_BITS | RC_CHOP | 0x3f,
-			  sign);
-	  setsign(&tmp, sign);
-
-	  FPU_round_to_int(&tmp, tag);  /* Fortunately, this can't
-					   overflow to 2^64 */
-
-	  rem_kernel(significand(&st0),
-		     &significand(&tmp),
-		     significand(&st1),
-		     significand(&tmp),
-		     exponent(&tmp)
-		     ); 
-	  setexponent16(&tmp, exp_1 + expdif);
-
-	  /* It is possible for the operation to be complete here.
-	     What does the IEEE standard say? The Intel 80486 manual
-	     implies that the operation will never be completed at this
-	     point, and the behaviour of a real 80486 confirms this.
-	   */
-	  if ( !(tmp.sigh | tmp.sigl) )
-	    {
-	      /* The result is zero */
-	      control_word = old_cw;
-	      partial_status = saved_status;
-	      FPU_copy_to_reg0(&CONST_Z, TAG_Zero);
-	      setsign(&st0, st0_sign);
+		} else {
+			/* There is a large exponent difference ( >= 64 ) */
+			/* To make much sense, the code in this section should
+			   be done at high precision. */
+			int exp_1, N;
+			u_char sign;
+
+			/* prevent overflow here */
+			/* N is 'a number between 32 and 63' (p26-113) */
+			reg_copy(&st0, &tmp);
+			tmptag = st0_tag;
+			N = (expdif & 0x0000001f) + 32;	/* This choice gives results
+							   identical to an AMD 486 */
+			setexponent16(&tmp, N);
+			exp_1 = exponent16(&st1);
+			setexponent16(&st1, 0);
+			expdif -= N;
+
+			sign = getsign(&tmp) ^ st1_sign;
+			tag =
+			    FPU_u_div(&tmp, &st1, &tmp,
+				      PR_64_BITS | RC_CHOP | 0x3f, sign);
+			setsign(&tmp, sign);
+
+			FPU_round_to_int(&tmp, tag);	/* Fortunately, this can't
+							   overflow to 2^64 */
+
+			rem_kernel(significand(&st0),
+				   &significand(&tmp),
+				   significand(&st1),
+				   significand(&tmp), exponent(&tmp)
+			    );
+			setexponent16(&tmp, exp_1 + expdif);
+
+			/* It is possible for the operation to be complete here.
+			   What does the IEEE standard say? The Intel 80486 manual
+			   implies that the operation will never be completed at this
+			   point, and the behaviour of a real 80486 confirms this.
+			 */
+			if (!(tmp.sigh | tmp.sigl)) {
+				/* The result is zero */
+				control_word = old_cw;
+				partial_status = saved_status;
+				FPU_copy_to_reg0(&CONST_Z, TAG_Zero);
+				setsign(&st0, st0_sign);
 #ifdef PECULIAR_486
-	      setcc(SW_C2);
+				setcc(SW_C2);
 #else
-	      setcc(0);
+				setcc(0);
 #endif /* PECULIAR_486 */
-	      return;
-	    }
-	  cc = SW_C2;
-	}
+				return;
+			}
+			cc = SW_C2;
+		}
 
-      control_word = old_cw;
-      partial_status = saved_status;
-      tag = FPU_normalize_nuo(&tmp);
-      reg_copy(&tmp, st0_ptr);
-
-      /* The only condition to be looked for is underflow,
-	 and it can occur here only if underflow is unmasked. */
-      if ( (exponent16(&tmp) <= EXP_UNDER) && (tag != TAG_Zero)
-	  && !(control_word & CW_Underflow) )
-	{
-	  setcc(cc);
-	  tag = arith_underflow(st0_ptr);
-	  setsign(st0_ptr, st0_sign);
-	  FPU_settag0(tag);
-	  return;
-	}
-      else if ( (exponent16(&tmp) > EXP_UNDER) || (tag == TAG_Zero) )
-	{
-	  stdexp(st0_ptr);
-	  setsign(st0_ptr, st0_sign);
-	}
-      else
-	{
-	  tag = FPU_round(st0_ptr, 0, 0, FULL_PRECISION, st0_sign);
-	}
-      FPU_settag0(tag);
-      setcc(cc);
+		control_word = old_cw;
+		partial_status = saved_status;
+		tag = FPU_normalize_nuo(&tmp);
+		reg_copy(&tmp, st0_ptr);
+
+		/* The only condition to be looked for is underflow,
+		   and it can occur here only if underflow is unmasked. */
+		if ((exponent16(&tmp) <= EXP_UNDER) && (tag != TAG_Zero)
+		    && !(control_word & CW_Underflow)) {
+			setcc(cc);
+			tag = arith_underflow(st0_ptr);
+			setsign(st0_ptr, st0_sign);
+			FPU_settag0(tag);
+			return;
+		} else if ((exponent16(&tmp) > EXP_UNDER) || (tag == TAG_Zero)) {
+			stdexp(st0_ptr);
+			setsign(st0_ptr, st0_sign);
+		} else {
+			tag =
+			    FPU_round(st0_ptr, 0, 0, FULL_PRECISION, st0_sign);
+		}
+		FPU_settag0(tag);
+		setcc(cc);
 
-      return;
-    }
+		return;
+	}
 
-  if ( st0_tag == TAG_Special )
-    st0_tag = FPU_Special(st0_ptr);
-  if ( st1_tag == TAG_Special )
-    st1_tag = FPU_Special(st1_ptr);
+	if (st0_tag == TAG_Special)
+		st0_tag = FPU_Special(st0_ptr);
+	if (st1_tag == TAG_Special)
+		st1_tag = FPU_Special(st1_ptr);
 
-  if ( ((st0_tag == TAG_Valid) && (st1_tag == TW_Denormal))
+	if (((st0_tag == TAG_Valid) && (st1_tag == TW_Denormal))
 	    || ((st0_tag == TW_Denormal) && (st1_tag == TAG_Valid))
-	    || ((st0_tag == TW_Denormal) && (st1_tag == TW_Denormal)) )
-    {
-      if ( denormal_operand() < 0 )
-	return;
-      goto fprem_valid;
-    }
-  else if ( (st0_tag == TAG_Empty) || (st1_tag == TAG_Empty) )
-    {
-      FPU_stack_underflow();
-      return;
-    }
-  else if ( st0_tag == TAG_Zero )
-    {
-      if ( st1_tag == TAG_Valid )
-	{
-	  setcc(0); return;
-	}
-      else if ( st1_tag == TW_Denormal )
-	{
-	  if ( denormal_operand() < 0 )
-	    return;
-	  setcc(0); return;
-	}
-      else if ( st1_tag == TAG_Zero )
-	{ arith_invalid(0); return; } /* fprem(?,0) always invalid */
-      else if ( st1_tag == TW_Infinity )
-	{ setcc(0); return; }
-    }
-  else if ( (st0_tag == TAG_Valid) || (st0_tag == TW_Denormal) )
-    {
-      if ( st1_tag == TAG_Zero )
-	{
-	  arith_invalid(0); /* fprem(Valid,Zero) is invalid */
-	  return;
-	}
-      else if ( st1_tag != TW_NaN )
-	{
-	  if ( ((st0_tag == TW_Denormal) || (st1_tag == TW_Denormal))
-	       && (denormal_operand() < 0) )
-	    return;
-
-	  if ( st1_tag == TW_Infinity )
-	    {
-	      /* fprem(Valid,Infinity) is o.k. */
-	      setcc(0); return;
-	    }
-	}
-    }
-  else if ( st0_tag == TW_Infinity )
-    {
-      if ( st1_tag != TW_NaN )
-	{
-	  arith_invalid(0); /* fprem(Infinity,?) is invalid */
-	  return;
+	    || ((st0_tag == TW_Denormal) && (st1_tag == TW_Denormal))) {
+		if (denormal_operand() < 0)
+			return;
+		goto fprem_valid;
+	} else if ((st0_tag == TAG_Empty) || (st1_tag == TAG_Empty)) {
+		FPU_stack_underflow();
+		return;
+	} else if (st0_tag == TAG_Zero) {
+		if (st1_tag == TAG_Valid) {
+			setcc(0);
+			return;
+		} else if (st1_tag == TW_Denormal) {
+			if (denormal_operand() < 0)
+				return;
+			setcc(0);
+			return;
+		} else if (st1_tag == TAG_Zero) {
+			arith_invalid(0);
+			return;
+		} /* fprem(?,0) always invalid */
+		else if (st1_tag == TW_Infinity) {
+			setcc(0);
+			return;
+		}
+	} else if ((st0_tag == TAG_Valid) || (st0_tag == TW_Denormal)) {
+		if (st1_tag == TAG_Zero) {
+			arith_invalid(0);	/* fprem(Valid,Zero) is invalid */
+			return;
+		} else if (st1_tag != TW_NaN) {
+			if (((st0_tag == TW_Denormal)
+			     || (st1_tag == TW_Denormal))
+			    && (denormal_operand() < 0))
+				return;
+
+			if (st1_tag == TW_Infinity) {
+				/* fprem(Valid,Infinity) is o.k. */
+				setcc(0);
+				return;
+			}
+		}
+	} else if (st0_tag == TW_Infinity) {
+		if (st1_tag != TW_NaN) {
+			arith_invalid(0);	/* fprem(Infinity,?) is invalid */
+			return;
+		}
 	}
-    }
 
-  /* One of the registers must contain a NaN if we got here. */
+	/* One of the registers must contain a NaN if we got here. */
 
 #ifdef PARANOID
-  if ( (st0_tag != TW_NaN) && (st1_tag != TW_NaN) )
-      EXCEPTION(EX_INTERNAL | 0x118);
+	if ((st0_tag != TW_NaN) && (st1_tag != TW_NaN))
+		EXCEPTION(EX_INTERNAL | 0x118);
 #endif /* PARANOID */
 
-  real_2op_NaN(st1_ptr, st1_tag, 0, st1_ptr);
+	real_2op_NaN(st1_ptr, st1_tag, 0, st1_ptr);
 
 }
 
-
 /* ST(1) <- ST(1) * log ST;  pop ST */
-static void fyl2x(FPU_REG *st0_ptr, u_char st0_tag)
+static void fyl2x(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  FPU_REG *st1_ptr = &st(1), exponent;
-  u_char st1_tag = FPU_gettagi(1);
-  u_char sign;
-  int e, tag;
-
-  clear_C1();
-
-  if ( (st0_tag == TAG_Valid) && (st1_tag == TAG_Valid) )
-    {
-    both_valid:
-      /* Both regs are Valid or Denormal */
-      if ( signpositive(st0_ptr) )
-	{
-	  if ( st0_tag == TW_Denormal )
-	    FPU_to_exp16(st0_ptr, st0_ptr);
-	  else
-	    /* Convert st(0) for internal use. */
-	    setexponent16(st0_ptr, exponent(st0_ptr));
-
-	  if ( (st0_ptr->sigh == 0x80000000) && (st0_ptr->sigl == 0) )
-	    {
-	      /* Special case. The result can be precise. */
-	      u_char esign;
-	      e = exponent16(st0_ptr);
-	      if ( e >= 0 )
-		{
-		  exponent.sigh = e;
-		  esign = SIGN_POS;
-		}
-	      else
-		{
-		  exponent.sigh = -e;
-		  esign = SIGN_NEG;
+	FPU_REG *st1_ptr = &st(1), exponent;
+	u_char st1_tag = FPU_gettagi(1);
+	u_char sign;
+	int e, tag;
+
+	clear_C1();
+
+	if ((st0_tag == TAG_Valid) && (st1_tag == TAG_Valid)) {
+	      both_valid:
+		/* Both regs are Valid or Denormal */
+		if (signpositive(st0_ptr)) {
+			if (st0_tag == TW_Denormal)
+				FPU_to_exp16(st0_ptr, st0_ptr);
+			else
+				/* Convert st(0) for internal use. */
+				setexponent16(st0_ptr, exponent(st0_ptr));
+
+			if ((st0_ptr->sigh == 0x80000000)
+			    && (st0_ptr->sigl == 0)) {
+				/* Special case. The result can be precise. */
+				u_char esign;
+				e = exponent16(st0_ptr);
+				if (e >= 0) {
+					exponent.sigh = e;
+					esign = SIGN_POS;
+				} else {
+					exponent.sigh = -e;
+					esign = SIGN_NEG;
+				}
+				exponent.sigl = 0;
+				setexponent16(&exponent, 31);
+				tag = FPU_normalize_nuo(&exponent);
+				stdexp(&exponent);
+				setsign(&exponent, esign);
+				tag =
+				    FPU_mul(&exponent, tag, 1, FULL_PRECISION);
+				if (tag >= 0)
+					FPU_settagi(1, tag);
+			} else {
+				/* The usual case */
+				sign = getsign(st1_ptr);
+				if (st1_tag == TW_Denormal)
+					FPU_to_exp16(st1_ptr, st1_ptr);
+				else
+					/* Convert st(1) for internal use. */
+					setexponent16(st1_ptr,
+						      exponent(st1_ptr));
+				poly_l2(st0_ptr, st1_ptr, sign);
+			}
+		} else {
+			/* negative */
+			if (arith_invalid(1) < 0)
+				return;
 		}
-	      exponent.sigl = 0;
-	      setexponent16(&exponent, 31);
-	      tag = FPU_normalize_nuo(&exponent);
-	      stdexp(&exponent);
-	      setsign(&exponent, esign);
-	      tag = FPU_mul(&exponent, tag, 1, FULL_PRECISION);
-	      if ( tag >= 0 )
-		FPU_settagi(1, tag);
-	    }
-	  else
-	    {
-	      /* The usual case */
-	      sign = getsign(st1_ptr);
-	      if ( st1_tag == TW_Denormal )
-		FPU_to_exp16(st1_ptr, st1_ptr);
-	      else
-		/* Convert st(1) for internal use. */
-		setexponent16(st1_ptr, exponent(st1_ptr));
-	      poly_l2(st0_ptr, st1_ptr, sign);
-	    }
-	}
-      else
-	{
-	  /* negative */
-	  if ( arith_invalid(1) < 0 )
-	    return;
-	}
 
-      FPU_pop();
-
-      return;
-    }
-
-  if ( st0_tag == TAG_Special )
-    st0_tag = FPU_Special(st0_ptr);
-  if ( st1_tag == TAG_Special )
-    st1_tag = FPU_Special(st1_ptr);
-
-  if ( (st0_tag == TAG_Empty) || (st1_tag == TAG_Empty) )
-    {
-      FPU_stack_underflow_pop(1);
-      return;
-    }
-  else if ( (st0_tag <= TW_Denormal) && (st1_tag <= TW_Denormal) )
-    {
-      if ( st0_tag == TAG_Zero )
-	{
-	  if ( st1_tag == TAG_Zero )
-	    {
-	      /* Both args zero is invalid */
-	      if ( arith_invalid(1) < 0 )
-		return;
-	    }
-	  else
-	    {
-	      u_char sign;
-	      sign = getsign(st1_ptr)^SIGN_NEG;
-	      if ( FPU_divide_by_zero(1, sign) < 0 )
-		return;
+		FPU_pop();
 
-	      setsign(st1_ptr, sign);
-	    }
-	}
-      else if ( st1_tag == TAG_Zero )
-	{
-	  /* st(1) contains zero, st(0) valid <> 0 */
-	  /* Zero is the valid answer */
-	  sign = getsign(st1_ptr);
-	  
-	  if ( signnegative(st0_ptr) )
-	    {
-	      /* log(negative) */
-	      if ( arith_invalid(1) < 0 )
 		return;
-	    }
-	  else if ( (st0_tag == TW_Denormal) && (denormal_operand() < 0) )
-	    return;
-	  else
-	    {
-	      if ( exponent(st0_ptr) < 0 )
-		sign ^= SIGN_NEG;
-
-	      FPU_copy_to_reg1(&CONST_Z, TAG_Zero);
-	      setsign(st1_ptr, sign);
-	    }
 	}
-      else
-	{
-	  /* One or both operands are denormals. */
-	  if ( denormal_operand() < 0 )
-	    return;
-	  goto both_valid;
-	}
-    }
-  else if ( (st0_tag == TW_NaN) || (st1_tag == TW_NaN) )
-    {
-      if ( real_2op_NaN(st0_ptr, st0_tag, 1, st0_ptr) < 0 )
-	return;
-    }
-  /* One or both arg must be an infinity */
-  else if ( st0_tag == TW_Infinity )
-    {
-      if ( (signnegative(st0_ptr)) || (st1_tag == TAG_Zero) )
-	{
-	  /* log(-infinity) or 0*log(infinity) */
-	  if ( arith_invalid(1) < 0 )
-	    return;
-	}
-      else
-	{
-	  u_char sign = getsign(st1_ptr);
 
-	  if ( (st1_tag == TW_Denormal) && (denormal_operand() < 0) )
-	    return;
+	if (st0_tag == TAG_Special)
+		st0_tag = FPU_Special(st0_ptr);
+	if (st1_tag == TAG_Special)
+		st1_tag = FPU_Special(st1_ptr);
 
-	  FPU_copy_to_reg1(&CONST_INF, TAG_Special);
-	  setsign(st1_ptr, sign);
-	}
-    }
-  /* st(1) must be infinity here */
-  else if ( ((st0_tag == TAG_Valid) || (st0_tag == TW_Denormal))
-	    && ( signpositive(st0_ptr) ) )
-    {
-      if ( exponent(st0_ptr) >= 0 )
-	{
-	  if ( (exponent(st0_ptr) == 0) &&
-	      (st0_ptr->sigh == 0x80000000) &&
-	      (st0_ptr->sigl == 0) )
-	    {
-	      /* st(0) holds 1.0 */
-	      /* infinity*log(1) */
-	      if ( arith_invalid(1) < 0 )
+	if ((st0_tag == TAG_Empty) || (st1_tag == TAG_Empty)) {
+		FPU_stack_underflow_pop(1);
 		return;
-	    }
-	  /* else st(0) is positive and > 1.0 */
+	} else if ((st0_tag <= TW_Denormal) && (st1_tag <= TW_Denormal)) {
+		if (st0_tag == TAG_Zero) {
+			if (st1_tag == TAG_Zero) {
+				/* Both args zero is invalid */
+				if (arith_invalid(1) < 0)
+					return;
+			} else {
+				u_char sign;
+				sign = getsign(st1_ptr) ^ SIGN_NEG;
+				if (FPU_divide_by_zero(1, sign) < 0)
+					return;
+
+				setsign(st1_ptr, sign);
+			}
+		} else if (st1_tag == TAG_Zero) {
+			/* st(1) contains zero, st(0) valid <> 0 */
+			/* Zero is the valid answer */
+			sign = getsign(st1_ptr);
+
+			if (signnegative(st0_ptr)) {
+				/* log(negative) */
+				if (arith_invalid(1) < 0)
+					return;
+			} else if ((st0_tag == TW_Denormal)
+				   && (denormal_operand() < 0))
+				return;
+			else {
+				if (exponent(st0_ptr) < 0)
+					sign ^= SIGN_NEG;
+
+				FPU_copy_to_reg1(&CONST_Z, TAG_Zero);
+				setsign(st1_ptr, sign);
+			}
+		} else {
+			/* One or both operands are denormals. */
+			if (denormal_operand() < 0)
+				return;
+			goto both_valid;
+		}
+	} else if ((st0_tag == TW_NaN) || (st1_tag == TW_NaN)) {
+		if (real_2op_NaN(st0_ptr, st0_tag, 1, st0_ptr) < 0)
+			return;
+	}
+	/* One or both arg must be an infinity */
+	else if (st0_tag == TW_Infinity) {
+		if ((signnegative(st0_ptr)) || (st1_tag == TAG_Zero)) {
+			/* log(-infinity) or 0*log(infinity) */
+			if (arith_invalid(1) < 0)
+				return;
+		} else {
+			u_char sign = getsign(st1_ptr);
+
+			if ((st1_tag == TW_Denormal)
+			    && (denormal_operand() < 0))
+				return;
+
+			FPU_copy_to_reg1(&CONST_INF, TAG_Special);
+			setsign(st1_ptr, sign);
+		}
 	}
-      else
-	{
-	  /* st(0) is positive and < 1.0 */
+	/* st(1) must be infinity here */
+	else if (((st0_tag == TAG_Valid) || (st0_tag == TW_Denormal))
+		 && (signpositive(st0_ptr))) {
+		if (exponent(st0_ptr) >= 0) {
+			if ((exponent(st0_ptr) == 0) &&
+			    (st0_ptr->sigh == 0x80000000) &&
+			    (st0_ptr->sigl == 0)) {
+				/* st(0) holds 1.0 */
+				/* infinity*log(1) */
+				if (arith_invalid(1) < 0)
+					return;
+			}
+			/* else st(0) is positive and > 1.0 */
+		} else {
+			/* st(0) is positive and < 1.0 */
 
-	  if ( (st0_tag == TW_Denormal) && (denormal_operand() < 0) )
-	    return;
+			if ((st0_tag == TW_Denormal)
+			    && (denormal_operand() < 0))
+				return;
 
-	  changesign(st1_ptr);
-	}
-    }
-  else
-    {
-      /* st(0) must be zero or negative */
-      if ( st0_tag == TAG_Zero )
-	{
-	  /* This should be invalid, but a real 80486 is happy with it. */
+			changesign(st1_ptr);
+		}
+	} else {
+		/* st(0) must be zero or negative */
+		if (st0_tag == TAG_Zero) {
+			/* This should be invalid, but a real 80486 is happy with it. */
 
 #ifndef PECULIAR_486
-	  sign = getsign(st1_ptr);
-	  if ( FPU_divide_by_zero(1, sign) < 0 )
-	    return;
+			sign = getsign(st1_ptr);
+			if (FPU_divide_by_zero(1, sign) < 0)
+				return;
 #endif /* PECULIAR_486 */
 
-	  changesign(st1_ptr);
+			changesign(st1_ptr);
+		} else if (arith_invalid(1) < 0)	/* log(negative) */
+			return;
 	}
-      else if ( arith_invalid(1) < 0 )	  /* log(negative) */
-	return;
-    }
 
-  FPU_pop();
+	FPU_pop();
 }
 
-
-static void fpatan(FPU_REG *st0_ptr, u_char st0_tag)
+static void fpatan(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  FPU_REG *st1_ptr = &st(1);
-  u_char st1_tag = FPU_gettagi(1);
-  int tag;
+	FPU_REG *st1_ptr = &st(1);
+	u_char st1_tag = FPU_gettagi(1);
+	int tag;
 
-  clear_C1();
-  if ( !((st0_tag ^ TAG_Valid) | (st1_tag ^ TAG_Valid)) )
-    {
-    valid_atan:
+	clear_C1();
+	if (!((st0_tag ^ TAG_Valid) | (st1_tag ^ TAG_Valid))) {
+	      valid_atan:
 
-      poly_atan(st0_ptr, st0_tag, st1_ptr, st1_tag);
+		poly_atan(st0_ptr, st0_tag, st1_ptr, st1_tag);
 
-      FPU_pop();
+		FPU_pop();
 
-      return;
-    }
+		return;
+	}
 
-  if ( st0_tag == TAG_Special )
-    st0_tag = FPU_Special(st0_ptr);
-  if ( st1_tag == TAG_Special )
-    st1_tag = FPU_Special(st1_ptr);
+	if (st0_tag == TAG_Special)
+		st0_tag = FPU_Special(st0_ptr);
+	if (st1_tag == TAG_Special)
+		st1_tag = FPU_Special(st1_ptr);
 
-  if ( ((st0_tag == TAG_Valid) && (st1_tag == TW_Denormal))
+	if (((st0_tag == TAG_Valid) && (st1_tag == TW_Denormal))
 	    || ((st0_tag == TW_Denormal) && (st1_tag == TAG_Valid))
-	    || ((st0_tag == TW_Denormal) && (st1_tag == TW_Denormal)) )
-    {
-      if ( denormal_operand() < 0 )
-	return;
+	    || ((st0_tag == TW_Denormal) && (st1_tag == TW_Denormal))) {
+		if (denormal_operand() < 0)
+			return;
 
-      goto valid_atan;
-    }
-  else if ( (st0_tag == TAG_Empty) || (st1_tag == TAG_Empty) )
-    {
-      FPU_stack_underflow_pop(1);
-      return;
-    }
-  else if ( (st0_tag == TW_NaN) || (st1_tag == TW_NaN) )
-    {
-      if ( real_2op_NaN(st0_ptr, st0_tag, 1, st0_ptr) >= 0 )
-	  FPU_pop();
-      return;
-    }
-  else if ( (st0_tag == TW_Infinity) || (st1_tag == TW_Infinity) )
-    {
-      u_char sign = getsign(st1_ptr);
-      if ( st0_tag == TW_Infinity )
-	{
-	  if ( st1_tag == TW_Infinity )
-	    {
-	      if ( signpositive(st0_ptr) )
-		{
-		  FPU_copy_to_reg1(&CONST_PI4, TAG_Valid);
-		}
-	      else
-		{
-		  setpositive(st1_ptr);
-		  tag = FPU_u_add(&CONST_PI4, &CONST_PI2, st1_ptr,
-				  FULL_PRECISION, SIGN_POS,
-				  exponent(&CONST_PI4), exponent(&CONST_PI2));
-		  if ( tag >= 0 )
-		    FPU_settagi(1, tag);
-		}
-	    }
-	  else
-	    {
-	      if ( (st1_tag == TW_Denormal) && (denormal_operand() < 0) )
+		goto valid_atan;
+	} else if ((st0_tag == TAG_Empty) || (st1_tag == TAG_Empty)) {
+		FPU_stack_underflow_pop(1);
+		return;
+	} else if ((st0_tag == TW_NaN) || (st1_tag == TW_NaN)) {
+		if (real_2op_NaN(st0_ptr, st0_tag, 1, st0_ptr) >= 0)
+			FPU_pop();
 		return;
+	} else if ((st0_tag == TW_Infinity) || (st1_tag == TW_Infinity)) {
+		u_char sign = getsign(st1_ptr);
+		if (st0_tag == TW_Infinity) {
+			if (st1_tag == TW_Infinity) {
+				if (signpositive(st0_ptr)) {
+					FPU_copy_to_reg1(&CONST_PI4, TAG_Valid);
+				} else {
+					setpositive(st1_ptr);
+					tag =
+					    FPU_u_add(&CONST_PI4, &CONST_PI2,
+						      st1_ptr, FULL_PRECISION,
+						      SIGN_POS,
+						      exponent(&CONST_PI4),
+						      exponent(&CONST_PI2));
+					if (tag >= 0)
+						FPU_settagi(1, tag);
+				}
+			} else {
+				if ((st1_tag == TW_Denormal)
+				    && (denormal_operand() < 0))
+					return;
+
+				if (signpositive(st0_ptr)) {
+					FPU_copy_to_reg1(&CONST_Z, TAG_Zero);
+					setsign(st1_ptr, sign);	/* An 80486 preserves the sign */
+					FPU_pop();
+					return;
+				} else {
+					FPU_copy_to_reg1(&CONST_PI, TAG_Valid);
+				}
+			}
+		} else {
+			/* st(1) is infinity, st(0) not infinity */
+			if ((st0_tag == TW_Denormal)
+			    && (denormal_operand() < 0))
+				return;
 
-	      if ( signpositive(st0_ptr) )
-		{
-		  FPU_copy_to_reg1(&CONST_Z, TAG_Zero);
-		  setsign(st1_ptr, sign);   /* An 80486 preserves the sign */
-		  FPU_pop();
-		  return;
+			FPU_copy_to_reg1(&CONST_PI2, TAG_Valid);
 		}
-	      else
-		{
-		  FPU_copy_to_reg1(&CONST_PI, TAG_Valid);
+		setsign(st1_ptr, sign);
+	} else if (st1_tag == TAG_Zero) {
+		/* st(0) must be valid or zero */
+		u_char sign = getsign(st1_ptr);
+
+		if ((st0_tag == TW_Denormal) && (denormal_operand() < 0))
+			return;
+
+		if (signpositive(st0_ptr)) {
+			/* An 80486 preserves the sign */
+			FPU_pop();
+			return;
 		}
-	    }
-	}
-      else
-	{
-	  /* st(1) is infinity, st(0) not infinity */
-	  if ( (st0_tag == TW_Denormal) && (denormal_operand() < 0) )
-	    return;
 
-	  FPU_copy_to_reg1(&CONST_PI2, TAG_Valid);
-	}
-      setsign(st1_ptr, sign);
-    }
-  else if ( st1_tag == TAG_Zero )
-    {
-      /* st(0) must be valid or zero */
-      u_char sign = getsign(st1_ptr);
-
-      if ( (st0_tag == TW_Denormal) && (denormal_operand() < 0) )
-	return;
+		FPU_copy_to_reg1(&CONST_PI, TAG_Valid);
+		setsign(st1_ptr, sign);
+	} else if (st0_tag == TAG_Zero) {
+		/* st(1) must be TAG_Valid here */
+		u_char sign = getsign(st1_ptr);
 
-      if ( signpositive(st0_ptr) )
-	{
-	  /* An 80486 preserves the sign */
-	  FPU_pop();
-	  return;
-	}
+		if ((st1_tag == TW_Denormal) && (denormal_operand() < 0))
+			return;
 
-      FPU_copy_to_reg1(&CONST_PI, TAG_Valid);
-      setsign(st1_ptr, sign);
-    }
-  else if ( st0_tag == TAG_Zero )
-    {
-      /* st(1) must be TAG_Valid here */
-      u_char sign = getsign(st1_ptr);
-
-      if ( (st1_tag == TW_Denormal) && (denormal_operand() < 0) )
-	return;
-
-      FPU_copy_to_reg1(&CONST_PI2, TAG_Valid);
-      setsign(st1_ptr, sign);
-    }
+		FPU_copy_to_reg1(&CONST_PI2, TAG_Valid);
+		setsign(st1_ptr, sign);
+	}
 #ifdef PARANOID
-  else
-    EXCEPTION(EX_INTERNAL | 0x125);
+	else
+		EXCEPTION(EX_INTERNAL | 0x125);
 #endif /* PARANOID */
 
-  FPU_pop();
-  set_precision_flag_up();  /* We do not really know if up or down */
+	FPU_pop();
+	set_precision_flag_up();	/* We do not really know if up or down */
 }
 
-
-static void fprem(FPU_REG *st0_ptr, u_char st0_tag)
+static void fprem(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  do_fprem(st0_ptr, st0_tag, RC_CHOP);
+	do_fprem(st0_ptr, st0_tag, RC_CHOP);
 }
 
-
-static void fprem1(FPU_REG *st0_ptr, u_char st0_tag)
+static void fprem1(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  do_fprem(st0_ptr, st0_tag, RC_RND);
+	do_fprem(st0_ptr, st0_tag, RC_RND);
 }
 
-
-static void fyl2xp1(FPU_REG *st0_ptr, u_char st0_tag)
+static void fyl2xp1(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  u_char sign, sign1;
-  FPU_REG *st1_ptr = &st(1), a, b;
-  u_char st1_tag = FPU_gettagi(1);
+	u_char sign, sign1;
+	FPU_REG *st1_ptr = &st(1), a, b;
+	u_char st1_tag = FPU_gettagi(1);
 
-  clear_C1();
-  if ( !((st0_tag ^ TAG_Valid) | (st1_tag ^ TAG_Valid)) )
-    {
-    valid_yl2xp1:
+	clear_C1();
+	if (!((st0_tag ^ TAG_Valid) | (st1_tag ^ TAG_Valid))) {
+	      valid_yl2xp1:
 
-      sign = getsign(st0_ptr);
-      sign1 = getsign(st1_ptr);
+		sign = getsign(st0_ptr);
+		sign1 = getsign(st1_ptr);
 
-      FPU_to_exp16(st0_ptr, &a);
-      FPU_to_exp16(st1_ptr, &b);
+		FPU_to_exp16(st0_ptr, &a);
+		FPU_to_exp16(st1_ptr, &b);
 
-      if ( poly_l2p1(sign, sign1, &a, &b, st1_ptr) )
-	return;
+		if (poly_l2p1(sign, sign1, &a, &b, st1_ptr))
+			return;
 
-      FPU_pop();
-      return;
-    }
+		FPU_pop();
+		return;
+	}
 
-  if ( st0_tag == TAG_Special )
-    st0_tag = FPU_Special(st0_ptr);
-  if ( st1_tag == TAG_Special )
-    st1_tag = FPU_Special(st1_ptr);
+	if (st0_tag == TAG_Special)
+		st0_tag = FPU_Special(st0_ptr);
+	if (st1_tag == TAG_Special)
+		st1_tag = FPU_Special(st1_ptr);
 
-  if ( ((st0_tag == TAG_Valid) && (st1_tag == TW_Denormal))
+	if (((st0_tag == TAG_Valid) && (st1_tag == TW_Denormal))
 	    || ((st0_tag == TW_Denormal) && (st1_tag == TAG_Valid))
-	    || ((st0_tag == TW_Denormal) && (st1_tag == TW_Denormal)) )
-    {
-      if ( denormal_operand() < 0 )
-	return;
-
-      goto valid_yl2xp1;
-    }
-  else if ( (st0_tag == TAG_Empty) | (st1_tag == TAG_Empty) )
-    {
-      FPU_stack_underflow_pop(1);
-      return;
-    }
-  else if ( st0_tag == TAG_Zero )
-    {
-      switch ( st1_tag )
-	{
-	case TW_Denormal:
-	  if ( denormal_operand() < 0 )
-	    return;
-
-	case TAG_Zero:
-	case TAG_Valid:
-	  setsign(st0_ptr, getsign(st0_ptr) ^ getsign(st1_ptr));
-	  FPU_copy_to_reg1(st0_ptr, st0_tag);
-	  break;
-
-	case TW_Infinity:
-	  /* Infinity*log(1) */
-	  if ( arith_invalid(1) < 0 )
-	    return;
-	  break;
+	    || ((st0_tag == TW_Denormal) && (st1_tag == TW_Denormal))) {
+		if (denormal_operand() < 0)
+			return;
 
-	case TW_NaN:
-	  if ( real_2op_NaN(st0_ptr, st0_tag, 1, st0_ptr) < 0 )
-	    return;
-	  break;
-
-	default:
+		goto valid_yl2xp1;
+	} else if ((st0_tag == TAG_Empty) | (st1_tag == TAG_Empty)) {
+		FPU_stack_underflow_pop(1);
+		return;
+	} else if (st0_tag == TAG_Zero) {
+		switch (st1_tag) {
+		case TW_Denormal:
+			if (denormal_operand() < 0)
+				return;
+
+		case TAG_Zero:
+		case TAG_Valid:
+			setsign(st0_ptr, getsign(st0_ptr) ^ getsign(st1_ptr));
+			FPU_copy_to_reg1(st0_ptr, st0_tag);
+			break;
+
+		case TW_Infinity:
+			/* Infinity*log(1) */
+			if (arith_invalid(1) < 0)
+				return;
+			break;
+
+		case TW_NaN:
+			if (real_2op_NaN(st0_ptr, st0_tag, 1, st0_ptr) < 0)
+				return;
+			break;
+
+		default:
 #ifdef PARANOID
-	  EXCEPTION(EX_INTERNAL | 0x116);
-	  return;
+			EXCEPTION(EX_INTERNAL | 0x116);
+			return;
 #endif /* PARANOID */
-	  break;
-	}
-    }
-  else if ( (st0_tag == TAG_Valid) || (st0_tag == TW_Denormal) )
-    {
-      switch ( st1_tag )
-	{
-	case TAG_Zero:
-	  if ( signnegative(st0_ptr) )
-	    {
-	      if ( exponent(st0_ptr) >= 0 )
-		{
-		  /* st(0) holds <= -1.0 */
-#ifdef PECULIAR_486   /* Stupid 80486 doesn't worry about log(negative). */
-		  changesign(st1_ptr);
+			break;
+		}
+	} else if ((st0_tag == TAG_Valid) || (st0_tag == TW_Denormal)) {
+		switch (st1_tag) {
+		case TAG_Zero:
+			if (signnegative(st0_ptr)) {
+				if (exponent(st0_ptr) >= 0) {
+					/* st(0) holds <= -1.0 */
+#ifdef PECULIAR_486		/* Stupid 80486 doesn't worry about log(negative). */
+					changesign(st1_ptr);
 #else
-		  if ( arith_invalid(1) < 0 )
-		    return;
+					if (arith_invalid(1) < 0)
+						return;
 #endif /* PECULIAR_486 */
-		}
-	      else if ( (st0_tag == TW_Denormal) && (denormal_operand() < 0) )
-		return;
-	      else
-		changesign(st1_ptr);
-	    }
-	  else if ( (st0_tag == TW_Denormal) && (denormal_operand() < 0) )
-	    return;
-	  break;
-
-	case TW_Infinity:
-	  if ( signnegative(st0_ptr) )
-	    {
-	      if ( (exponent(st0_ptr) >= 0) &&
-		  !((st0_ptr->sigh == 0x80000000) &&
-		    (st0_ptr->sigl == 0)) )
-		{
-		  /* st(0) holds < -1.0 */
-#ifdef PECULIAR_486   /* Stupid 80486 doesn't worry about log(negative). */
-		  changesign(st1_ptr);
+				} else if ((st0_tag == TW_Denormal)
+					   && (denormal_operand() < 0))
+					return;
+				else
+					changesign(st1_ptr);
+			} else if ((st0_tag == TW_Denormal)
+				   && (denormal_operand() < 0))
+				return;
+			break;
+
+		case TW_Infinity:
+			if (signnegative(st0_ptr)) {
+				if ((exponent(st0_ptr) >= 0) &&
+				    !((st0_ptr->sigh == 0x80000000) &&
+				      (st0_ptr->sigl == 0))) {
+					/* st(0) holds < -1.0 */
+#ifdef PECULIAR_486		/* Stupid 80486 doesn't worry about log(negative). */
+					changesign(st1_ptr);
 #else
-		  if ( arith_invalid(1) < 0 ) return;
+					if (arith_invalid(1) < 0)
+						return;
 #endif /* PECULIAR_486 */
+				} else if ((st0_tag == TW_Denormal)
+					   && (denormal_operand() < 0))
+					return;
+				else
+					changesign(st1_ptr);
+			} else if ((st0_tag == TW_Denormal)
+				   && (denormal_operand() < 0))
+				return;
+			break;
+
+		case TW_NaN:
+			if (real_2op_NaN(st0_ptr, st0_tag, 1, st0_ptr) < 0)
+				return;
 		}
-	      else if ( (st0_tag == TW_Denormal) && (denormal_operand() < 0) )
-		return;
-	      else
-		changesign(st1_ptr);
-	    }
-	  else if ( (st0_tag == TW_Denormal) && (denormal_operand() < 0) )
-	    return;
-	  break;
-
-	case TW_NaN:
-	  if ( real_2op_NaN(st0_ptr, st0_tag, 1, st0_ptr) < 0 )
-	    return;
-	}
 
-    }
-  else if ( st0_tag == TW_NaN )
-    {
-      if ( real_2op_NaN(st0_ptr, st0_tag, 1, st0_ptr) < 0 )
-	return;
-    }
-  else if ( st0_tag == TW_Infinity )
-    {
-      if ( st1_tag == TW_NaN )
-	{
-	  if ( real_2op_NaN(st0_ptr, st0_tag, 1, st0_ptr) < 0 )
-	    return;
-	}
-      else if ( signnegative(st0_ptr) )
-	{
+	} else if (st0_tag == TW_NaN) {
+		if (real_2op_NaN(st0_ptr, st0_tag, 1, st0_ptr) < 0)
+			return;
+	} else if (st0_tag == TW_Infinity) {
+		if (st1_tag == TW_NaN) {
+			if (real_2op_NaN(st0_ptr, st0_tag, 1, st0_ptr) < 0)
+				return;
+		} else if (signnegative(st0_ptr)) {
 #ifndef PECULIAR_486
-	  /* This should have higher priority than denormals, but... */
-	  if ( arith_invalid(1) < 0 )  /* log(-infinity) */
-	    return;
+			/* This should have higher priority than denormals, but... */
+			if (arith_invalid(1) < 0)	/* log(-infinity) */
+				return;
 #endif /* PECULIAR_486 */
-	  if ( (st1_tag == TW_Denormal) && (denormal_operand() < 0) )
-	    return;
+			if ((st1_tag == TW_Denormal)
+			    && (denormal_operand() < 0))
+				return;
 #ifdef PECULIAR_486
-	  /* Denormal operands actually get higher priority */
-	  if ( arith_invalid(1) < 0 )  /* log(-infinity) */
-	    return;
+			/* Denormal operands actually get higher priority */
+			if (arith_invalid(1) < 0)	/* log(-infinity) */
+				return;
 #endif /* PECULIAR_486 */
-	}
-      else if ( st1_tag == TAG_Zero )
-	{
-	  /* log(infinity) */
-	  if ( arith_invalid(1) < 0 )
-	    return;
-	}
-	
-      /* st(1) must be valid here. */
+		} else if (st1_tag == TAG_Zero) {
+			/* log(infinity) */
+			if (arith_invalid(1) < 0)
+				return;
+		}
 
-      else if ( (st1_tag == TW_Denormal) && (denormal_operand() < 0) )
-	return;
+		/* st(1) must be valid here. */
+
+		else if ((st1_tag == TW_Denormal) && (denormal_operand() < 0))
+			return;
 
-      /* The Manual says that log(Infinity) is invalid, but a real
-	 80486 sensibly says that it is o.k. */
-      else
-	{
-	  u_char sign = getsign(st1_ptr);
-	  FPU_copy_to_reg1(&CONST_INF, TAG_Special);
-	  setsign(st1_ptr, sign);
+		/* The Manual says that log(Infinity) is invalid, but a real
+		   80486 sensibly says that it is o.k. */
+		else {
+			u_char sign = getsign(st1_ptr);
+			FPU_copy_to_reg1(&CONST_INF, TAG_Special);
+			setsign(st1_ptr, sign);
+		}
 	}
-    }
 #ifdef PARANOID
-  else
-    {
-      EXCEPTION(EX_INTERNAL | 0x117);
-      return;
-    }
+	else {
+		EXCEPTION(EX_INTERNAL | 0x117);
+		return;
+	}
 #endif /* PARANOID */
 
-  FPU_pop();
-  return;
+	FPU_pop();
+	return;
 
 }
 
-
-static void fscale(FPU_REG *st0_ptr, u_char st0_tag)
+static void fscale(FPU_REG * st0_ptr, u_char st0_tag)
 {
-  FPU_REG *st1_ptr = &st(1);
-  u_char st1_tag = FPU_gettagi(1);
-  int old_cw = control_word;
-  u_char sign = getsign(st0_ptr);
-
-  clear_C1();
-  if ( !((st0_tag ^ TAG_Valid) | (st1_tag ^ TAG_Valid)) )
-    {
-      long scale;
-      FPU_REG tmp;
-
-      /* Convert register for internal use. */
-      setexponent16(st0_ptr, exponent(st0_ptr));
-
-    valid_scale:
-
-      if ( exponent(st1_ptr) > 30 )
-	{
-	  /* 2^31 is far too large, would require 2^(2^30) or 2^(-2^30) */
-
-	  if ( signpositive(st1_ptr) )
-	    {
-	      EXCEPTION(EX_Overflow);
-	      FPU_copy_to_reg0(&CONST_INF, TAG_Special);
-	    }
-	  else
-	    {
-	      EXCEPTION(EX_Underflow);
-	      FPU_copy_to_reg0(&CONST_Z, TAG_Zero);
-	    }
-	  setsign(st0_ptr, sign);
-	  return;
-	}
-
-      control_word &= ~CW_RC;
-      control_word |= RC_CHOP;
-      reg_copy(st1_ptr, &tmp);
-      FPU_round_to_int(&tmp, st1_tag);      /* This can never overflow here */
-      control_word = old_cw;
-      scale = signnegative(st1_ptr) ? -tmp.sigl : tmp.sigl;
-      scale += exponent16(st0_ptr);
-
-      setexponent16(st0_ptr, scale);
-
-      /* Use FPU_round() to properly detect under/overflow etc */
-      FPU_round(st0_ptr, 0, 0, control_word, sign);
-
-      return;
-    }
-
-  if ( st0_tag == TAG_Special )
-    st0_tag = FPU_Special(st0_ptr);
-  if ( st1_tag == TAG_Special )
-    st1_tag = FPU_Special(st1_ptr);
-
-  if ( (st0_tag == TAG_Valid) || (st0_tag == TW_Denormal) )
-    {
-      switch ( st1_tag )
-	{
-	case TAG_Valid:
-	  /* st(0) must be a denormal */
-	  if ( (st0_tag == TW_Denormal) && (denormal_operand() < 0) )
-	    return;
-
-	  FPU_to_exp16(st0_ptr, st0_ptr);  /* Will not be left on stack */
-	  goto valid_scale;
-
-	case TAG_Zero:
-	  if ( st0_tag == TW_Denormal )
-	    denormal_operand();
-	  return;
-
-	case TW_Denormal:
-	  denormal_operand();
-	  return;
-
-	case TW_Infinity:
-	  if ( (st0_tag == TW_Denormal) && (denormal_operand() < 0) )
-	    return;
-
-	  if ( signpositive(st1_ptr) )
-	    FPU_copy_to_reg0(&CONST_INF, TAG_Special);
-	  else
-	    FPU_copy_to_reg0(&CONST_Z, TAG_Zero);
-	  setsign(st0_ptr, sign);
-	  return;
+	FPU_REG *st1_ptr = &st(1);
+	u_char st1_tag = FPU_gettagi(1);
+	int old_cw = control_word;
+	u_char sign = getsign(st0_ptr);
+
+	clear_C1();
+	if (!((st0_tag ^ TAG_Valid) | (st1_tag ^ TAG_Valid))) {
+		long scale;
+		FPU_REG tmp;
+
+		/* Convert register for internal use. */
+		setexponent16(st0_ptr, exponent(st0_ptr));
+
+	      valid_scale:
+
+		if (exponent(st1_ptr) > 30) {
+			/* 2^31 is far too large, would require 2^(2^30) or 2^(-2^30) */
+
+			if (signpositive(st1_ptr)) {
+				EXCEPTION(EX_Overflow);
+				FPU_copy_to_reg0(&CONST_INF, TAG_Special);
+			} else {
+				EXCEPTION(EX_Underflow);
+				FPU_copy_to_reg0(&CONST_Z, TAG_Zero);
+			}
+			setsign(st0_ptr, sign);
+			return;
+		}
 
-	case TW_NaN:
-	  real_2op_NaN(st1_ptr, st1_tag, 0, st0_ptr);
-	  return;
-	}
-    }
-  else if ( st0_tag == TAG_Zero )
-    {
-      switch ( st1_tag )
-	{
-	case TAG_Valid:
-	case TAG_Zero:
-	  return;
+		control_word &= ~CW_RC;
+		control_word |= RC_CHOP;
+		reg_copy(st1_ptr, &tmp);
+		FPU_round_to_int(&tmp, st1_tag);	/* This can never overflow here */
+		control_word = old_cw;
+		scale = signnegative(st1_ptr) ? -tmp.sigl : tmp.sigl;
+		scale += exponent16(st0_ptr);
 
-	case TW_Denormal:
-	  denormal_operand();
-	  return;
+		setexponent16(st0_ptr, scale);
 
-	case TW_Infinity:
-	  if ( signpositive(st1_ptr) )
-	    arith_invalid(0); /* Zero scaled by +Infinity */
-	  return;
+		/* Use FPU_round() to properly detect under/overflow etc */
+		FPU_round(st0_ptr, 0, 0, control_word, sign);
 
-	case TW_NaN:
-	  real_2op_NaN(st1_ptr, st1_tag, 0, st0_ptr);
-	  return;
+		return;
 	}
-    }
-  else if ( st0_tag == TW_Infinity )
-    {
-      switch ( st1_tag )
-	{
-	case TAG_Valid:
-	case TAG_Zero:
-	  return;
-
-	case TW_Denormal:
-	  denormal_operand();
-	  return;
 
-	case TW_Infinity:
-	  if ( signnegative(st1_ptr) )
-	    arith_invalid(0); /* Infinity scaled by -Infinity */
-	  return;
-
-	case TW_NaN:
-	  real_2op_NaN(st1_ptr, st1_tag, 0, st0_ptr);
-	  return;
+	if (st0_tag == TAG_Special)
+		st0_tag = FPU_Special(st0_ptr);
+	if (st1_tag == TAG_Special)
+		st1_tag = FPU_Special(st1_ptr);
+
+	if ((st0_tag == TAG_Valid) || (st0_tag == TW_Denormal)) {
+		switch (st1_tag) {
+		case TAG_Valid:
+			/* st(0) must be a denormal */
+			if ((st0_tag == TW_Denormal)
+			    && (denormal_operand() < 0))
+				return;
+
+			FPU_to_exp16(st0_ptr, st0_ptr);	/* Will not be left on stack */
+			goto valid_scale;
+
+		case TAG_Zero:
+			if (st0_tag == TW_Denormal)
+				denormal_operand();
+			return;
+
+		case TW_Denormal:
+			denormal_operand();
+			return;
+
+		case TW_Infinity:
+			if ((st0_tag == TW_Denormal)
+			    && (denormal_operand() < 0))
+				return;
+
+			if (signpositive(st1_ptr))
+				FPU_copy_to_reg0(&CONST_INF, TAG_Special);
+			else
+				FPU_copy_to_reg0(&CONST_Z, TAG_Zero);
+			setsign(st0_ptr, sign);
+			return;
+
+		case TW_NaN:
+			real_2op_NaN(st1_ptr, st1_tag, 0, st0_ptr);
+			return;
+		}
+	} else if (st0_tag == TAG_Zero) {
+		switch (st1_tag) {
+		case TAG_Valid:
+		case TAG_Zero:
+			return;
+
+		case TW_Denormal:
+			denormal_operand();
+			return;
+
+		case TW_Infinity:
+			if (signpositive(st1_ptr))
+				arith_invalid(0);	/* Zero scaled by +Infinity */
+			return;
+
+		case TW_NaN:
+			real_2op_NaN(st1_ptr, st1_tag, 0, st0_ptr);
+			return;
+		}
+	} else if (st0_tag == TW_Infinity) {
+		switch (st1_tag) {
+		case TAG_Valid:
+		case TAG_Zero:
+			return;
+
+		case TW_Denormal:
+			denormal_operand();
+			return;
+
+		case TW_Infinity:
+			if (signnegative(st1_ptr))
+				arith_invalid(0);	/* Infinity scaled by -Infinity */
+			return;
+
+		case TW_NaN:
+			real_2op_NaN(st1_ptr, st1_tag, 0, st0_ptr);
+			return;
+		}
+	} else if (st0_tag == TW_NaN) {
+		if (st1_tag != TAG_Empty) {
+			real_2op_NaN(st1_ptr, st1_tag, 0, st0_ptr);
+			return;
+		}
 	}
-    }
-  else if ( st0_tag == TW_NaN )
-    {
-      if ( st1_tag != TAG_Empty )
-	{ real_2op_NaN(st1_ptr, st1_tag, 0, st0_ptr); return; }
-    }
-
 #ifdef PARANOID
-  if ( !((st0_tag == TAG_Empty) || (st1_tag == TAG_Empty)) )
-    {
-      EXCEPTION(EX_INTERNAL | 0x115);
-      return;
-    }
+	if (!((st0_tag == TAG_Empty) || (st1_tag == TAG_Empty))) {
+		EXCEPTION(EX_INTERNAL | 0x115);
+		return;
+	}
 #endif
 
-  /* At least one of st(0), st(1) must be empty */
-  FPU_stack_underflow();
+	/* At least one of st(0), st(1) must be empty */
+	FPU_stack_underflow();
 
 }
 
-
 /*---------------------------------------------------------------------------*/
 
 static FUNC_ST0 const trig_table_a[] = {
-  f2xm1, fyl2x, fptan, fpatan,
-  fxtract, fprem1, (FUNC_ST0)fdecstp, (FUNC_ST0)fincstp
+	f2xm1, fyl2x, fptan, fpatan,
+	fxtract, fprem1, (FUNC_ST0) fdecstp, (FUNC_ST0) fincstp
 };
 
 void FPU_triga(void)
 {
-  (trig_table_a[FPU_rm])(&st(0), FPU_gettag0());
+	(trig_table_a[FPU_rm]) (&st(0), FPU_gettag0());
 }
 
-
-static FUNC_ST0 const trig_table_b[] =
-  {
-    fprem, fyl2xp1, fsqrt_, fsincos, frndint_, fscale, (FUNC_ST0)fsin, fcos
-  };
+static FUNC_ST0 const trig_table_b[] = {
+	fprem, fyl2xp1, fsqrt_, fsincos, frndint_, fscale, (FUNC_ST0) fsin, fcos
+};
 
 void FPU_trigb(void)
 {
-  (trig_table_b[FPU_rm])(&st(0), FPU_gettag0());
+	(trig_table_b[FPU_rm]) (&st(0), FPU_gettag0());
 }
diff --git a/arch/x86/math-emu/get_address.c b/arch/x86/math-emu/get_address.c
index 2e2c51a8bd3a..d701e2b39e44 100644
--- a/arch/x86/math-emu/get_address.c
+++ b/arch/x86/math-emu/get_address.c
@@ -17,7 +17,6 @@
  |    other processes using the emulator while swapping is in progress.      |
  +---------------------------------------------------------------------------*/
 
-
 #include <linux/stddef.h>
 
 #include <asm/uaccess.h>
@@ -27,31 +26,30 @@
 #include "exception.h"
 #include "fpu_emu.h"
 
-
 #define FPU_WRITE_BIT 0x10
 
 static int reg_offset[] = {
-	offsetof(struct info,___eax),
-	offsetof(struct info,___ecx),
-	offsetof(struct info,___edx),
-	offsetof(struct info,___ebx),
-	offsetof(struct info,___esp),
-	offsetof(struct info,___ebp),
-	offsetof(struct info,___esi),
-	offsetof(struct info,___edi)
+	offsetof(struct info, ___eax),
+	offsetof(struct info, ___ecx),
+	offsetof(struct info, ___edx),
+	offsetof(struct info, ___ebx),
+	offsetof(struct info, ___esp),
+	offsetof(struct info, ___ebp),
+	offsetof(struct info, ___esi),
+	offsetof(struct info, ___edi)
 };
 
 #define REG_(x) (*(long *)(reg_offset[(x)]+(u_char *) FPU_info))
 
 static int reg_offset_vm86[] = {
-	offsetof(struct info,___cs),
-	offsetof(struct info,___vm86_ds),
-	offsetof(struct info,___vm86_es),
-	offsetof(struct info,___vm86_fs),
-	offsetof(struct info,___vm86_gs),
-	offsetof(struct info,___ss),
-	offsetof(struct info,___vm86_ds)
-      };
+	offsetof(struct info, ___cs),
+	offsetof(struct info, ___vm86_ds),
+	offsetof(struct info, ___vm86_es),
+	offsetof(struct info, ___vm86_fs),
+	offsetof(struct info, ___vm86_gs),
+	offsetof(struct info, ___ss),
+	offsetof(struct info, ___vm86_ds)
+};
 
 #define VM86_REG_(x) (*(unsigned short *) \
 		      (reg_offset_vm86[((unsigned)x)]+(u_char *) FPU_info))
@@ -60,158 +58,141 @@ static int reg_offset_vm86[] = {
 #define ___GS ___ds
 
 static int reg_offset_pm[] = {
-	offsetof(struct info,___cs),
-	offsetof(struct info,___ds),
-	offsetof(struct info,___es),
-	offsetof(struct info,___fs),
-	offsetof(struct info,___GS),
-	offsetof(struct info,___ss),
-	offsetof(struct info,___ds)
-      };
+	offsetof(struct info, ___cs),
+	offsetof(struct info, ___ds),
+	offsetof(struct info, ___es),
+	offsetof(struct info, ___fs),
+	offsetof(struct info, ___GS),
+	offsetof(struct info, ___ss),
+	offsetof(struct info, ___ds)
+};
 
 #define PM_REG_(x) (*(unsigned short *) \
 		      (reg_offset_pm[((unsigned)x)]+(u_char *) FPU_info))
 
-
 /* Decode the SIB byte. This function assumes mod != 0 */
 static int sib(int mod, unsigned long *fpu_eip)
 {
-  u_char ss,index,base;
-  long offset;
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_code_access_ok(1);
-  FPU_get_user(base, (u_char __user *) (*fpu_eip));   /* The SIB byte */
-  RE_ENTRANT_CHECK_ON;
-  (*fpu_eip)++;
-  ss = base >> 6;
-  index = (base >> 3) & 7;
-  base &= 7;
-
-  if ((mod == 0) && (base == 5))
-    offset = 0;              /* No base register */
-  else
-    offset = REG_(base);
-
-  if (index == 4)
-    {
-      /* No index register */
-      /* A non-zero ss is illegal */
-      if ( ss )
-	EXCEPTION(EX_Invalid);
-    }
-  else
-    {
-      offset += (REG_(index)) << ss;
-    }
-
-  if (mod == 1)
-    {
-      /* 8 bit signed displacement */
-      long displacement;
-      RE_ENTRANT_CHECK_OFF;
-      FPU_code_access_ok(1);
-      FPU_get_user(displacement, (signed char __user *) (*fpu_eip));
-      offset += displacement;
-      RE_ENTRANT_CHECK_ON;
-      (*fpu_eip)++;
-    }
-  else if (mod == 2 || base == 5) /* The second condition also has mod==0 */
-    {
-      /* 32 bit displacement */
-      long displacement;
-      RE_ENTRANT_CHECK_OFF;
-      FPU_code_access_ok(4);
-      FPU_get_user(displacement, (long __user *) (*fpu_eip));
-      offset += displacement;
-      RE_ENTRANT_CHECK_ON;
-      (*fpu_eip) += 4;
-    }
-
-  return offset;
-}
+	u_char ss, index, base;
+	long offset;
+
+	RE_ENTRANT_CHECK_OFF;
+	FPU_code_access_ok(1);
+	FPU_get_user(base, (u_char __user *) (*fpu_eip));	/* The SIB byte */
+	RE_ENTRANT_CHECK_ON;
+	(*fpu_eip)++;
+	ss = base >> 6;
+	index = (base >> 3) & 7;
+	base &= 7;
+
+	if ((mod == 0) && (base == 5))
+		offset = 0;	/* No base register */
+	else
+		offset = REG_(base);
+
+	if (index == 4) {
+		/* No index register */
+		/* A non-zero ss is illegal */
+		if (ss)
+			EXCEPTION(EX_Invalid);
+	} else {
+		offset += (REG_(index)) << ss;
+	}
+
+	if (mod == 1) {
+		/* 8 bit signed displacement */
+		long displacement;
+		RE_ENTRANT_CHECK_OFF;
+		FPU_code_access_ok(1);
+		FPU_get_user(displacement, (signed char __user *)(*fpu_eip));
+		offset += displacement;
+		RE_ENTRANT_CHECK_ON;
+		(*fpu_eip)++;
+	} else if (mod == 2 || base == 5) {	/* The second condition also has mod==0 */
+		/* 32 bit displacement */
+		long displacement;
+		RE_ENTRANT_CHECK_OFF;
+		FPU_code_access_ok(4);
+		FPU_get_user(displacement, (long __user *)(*fpu_eip));
+		offset += displacement;
+		RE_ENTRANT_CHECK_ON;
+		(*fpu_eip) += 4;
+	}
 
+	return offset;
+}
 
-static unsigned long vm86_segment(u_char segment,
-				  struct address *addr)
+static unsigned long vm86_segment(u_char segment, struct address *addr)
 {
-  segment--;
+	segment--;
 #ifdef PARANOID
-  if ( segment > PREFIX_SS_ )
-    {
-      EXCEPTION(EX_INTERNAL|0x130);
-      math_abort(FPU_info,SIGSEGV);
-    }
+	if (segment > PREFIX_SS_) {
+		EXCEPTION(EX_INTERNAL | 0x130);
+		math_abort(FPU_info, SIGSEGV);
+	}
 #endif /* PARANOID */
-  addr->selector = VM86_REG_(segment);
-  return (unsigned long)VM86_REG_(segment) << 4;
+	addr->selector = VM86_REG_(segment);
+	return (unsigned long)VM86_REG_(segment) << 4;
 }
 
-
 /* This should work for 16 and 32 bit protected mode. */
 static long pm_address(u_char FPU_modrm, u_char segment,
 		       struct address *addr, long offset)
-{ 
-  struct desc_struct descriptor;
-  unsigned long base_address, limit, address, seg_top;
+{
+	struct desc_struct descriptor;
+	unsigned long base_address, limit, address, seg_top;
 
-  segment--;
+	segment--;
 
 #ifdef PARANOID
-  /* segment is unsigned, so this also detects if segment was 0: */
-  if ( segment > PREFIX_SS_ )
-    {
-      EXCEPTION(EX_INTERNAL|0x132);
-      math_abort(FPU_info,SIGSEGV);
-    }
+	/* segment is unsigned, so this also detects if segment was 0: */
+	if (segment > PREFIX_SS_) {
+		EXCEPTION(EX_INTERNAL | 0x132);
+		math_abort(FPU_info, SIGSEGV);
+	}
 #endif /* PARANOID */
 
-  switch ( segment )
-    {
-      /* gs isn't used by the kernel, so it still has its
-	 user-space value. */
-    case PREFIX_GS_-1:
-      /* N.B. - movl %seg, mem is a 2 byte write regardless of prefix */
-      savesegment(gs, addr->selector);
-      break;
-    default:
-      addr->selector = PM_REG_(segment);
-    }
-
-  descriptor = LDT_DESCRIPTOR(PM_REG_(segment));
-  base_address = SEG_BASE_ADDR(descriptor);
-  address = base_address + offset;
-  limit = base_address
-	+ (SEG_LIMIT(descriptor)+1) * SEG_GRANULARITY(descriptor) - 1;
-  if ( limit < base_address ) limit = 0xffffffff;
-
-  if ( SEG_EXPAND_DOWN(descriptor) )
-    {
-      if ( SEG_G_BIT(descriptor) )
-	seg_top = 0xffffffff;
-      else
-	{
-	  seg_top = base_address + (1 << 20);
-	  if ( seg_top < base_address ) seg_top = 0xffffffff;
+	switch (segment) {
+		/* gs isn't used by the kernel, so it still has its
+		   user-space value. */
+	case PREFIX_GS_ - 1:
+		/* N.B. - movl %seg, mem is a 2 byte write regardless of prefix */
+		savesegment(gs, addr->selector);
+		break;
+	default:
+		addr->selector = PM_REG_(segment);
 	}
-      access_limit =
-	(address <= limit) || (address >= seg_top) ? 0 :
-	  ((seg_top-address) >= 255 ? 255 : seg_top-address);
-    }
-  else
-    {
-      access_limit =
-	(address > limit) || (address < base_address) ? 0 :
-	  ((limit-address) >= 254 ? 255 : limit-address+1);
-    }
-  if ( SEG_EXECUTE_ONLY(descriptor) ||
-      (!SEG_WRITE_PERM(descriptor) && (FPU_modrm & FPU_WRITE_BIT)) )
-    {
-      access_limit = 0;
-    }
-  return address;
-}
 
+	descriptor = LDT_DESCRIPTOR(PM_REG_(segment));
+	base_address = SEG_BASE_ADDR(descriptor);
+	address = base_address + offset;
+	limit = base_address
+	    + (SEG_LIMIT(descriptor) + 1) * SEG_GRANULARITY(descriptor) - 1;
+	if (limit < base_address)
+		limit = 0xffffffff;
+
+	if (SEG_EXPAND_DOWN(descriptor)) {
+		if (SEG_G_BIT(descriptor))
+			seg_top = 0xffffffff;
+		else {
+			seg_top = base_address + (1 << 20);
+			if (seg_top < base_address)
+				seg_top = 0xffffffff;
+		}
+		access_limit =
+		    (address <= limit) || (address >= seg_top) ? 0 :
+		    ((seg_top - address) >= 255 ? 255 : seg_top - address);
+	} else {
+		access_limit =
+		    (address > limit) || (address < base_address) ? 0 :
+		    ((limit - address) >= 254 ? 255 : limit - address + 1);
+	}
+	if (SEG_EXECUTE_ONLY(descriptor) ||
+	    (!SEG_WRITE_PERM(descriptor) && (FPU_modrm & FPU_WRITE_BIT))) {
+		access_limit = 0;
+	}
+	return address;
+}
 
 /*
        MOD R/M byte:  MOD == 3 has a special use for the FPU
@@ -221,7 +202,6 @@ static long pm_address(u_char FPU_modrm, u_char segment,
        .....   .........   .........
         MOD    OPCODE(2)     R/M
 
-
        SIB byte
 
        7   6   5   4   3   2   1   0
@@ -231,208 +211,194 @@ static long pm_address(u_char FPU_modrm, u_char segment,
 */
 
 void __user *FPU_get_address(u_char FPU_modrm, unsigned long *fpu_eip,
-		  struct address *addr,
-		  fpu_addr_modes addr_modes)
+			     struct address *addr, fpu_addr_modes addr_modes)
+{
+	u_char mod;
+	unsigned rm = FPU_modrm & 7;
+	long *cpu_reg_ptr;
+	int address = 0;	/* Initialized just to stop compiler warnings. */
+
+	/* Memory accessed via the cs selector is write protected
+	   in `non-segmented' 32 bit protected mode. */
+	if (!addr_modes.default_mode && (FPU_modrm & FPU_WRITE_BIT)
+	    && (addr_modes.override.segment == PREFIX_CS_)) {
+		math_abort(FPU_info, SIGSEGV);
+	}
+
+	addr->selector = FPU_DS;	/* Default, for 32 bit non-segmented mode. */
+
+	mod = (FPU_modrm >> 6) & 3;
+
+	if (rm == 4 && mod != 3) {
+		address = sib(mod, fpu_eip);
+	} else {
+		cpu_reg_ptr = &REG_(rm);
+		switch (mod) {
+		case 0:
+			if (rm == 5) {
+				/* Special case: disp32 */
+				RE_ENTRANT_CHECK_OFF;
+				FPU_code_access_ok(4);
+				FPU_get_user(address,
+					     (unsigned long __user
+					      *)(*fpu_eip));
+				(*fpu_eip) += 4;
+				RE_ENTRANT_CHECK_ON;
+				addr->offset = address;
+				return (void __user *)address;
+			} else {
+				address = *cpu_reg_ptr;	/* Just return the contents
+							   of the cpu register */
+				addr->offset = address;
+				return (void __user *)address;
+			}
+		case 1:
+			/* 8 bit signed displacement */
+			RE_ENTRANT_CHECK_OFF;
+			FPU_code_access_ok(1);
+			FPU_get_user(address, (signed char __user *)(*fpu_eip));
+			RE_ENTRANT_CHECK_ON;
+			(*fpu_eip)++;
+			break;
+		case 2:
+			/* 32 bit displacement */
+			RE_ENTRANT_CHECK_OFF;
+			FPU_code_access_ok(4);
+			FPU_get_user(address, (long __user *)(*fpu_eip));
+			(*fpu_eip) += 4;
+			RE_ENTRANT_CHECK_ON;
+			break;
+		case 3:
+			/* Not legal for the FPU */
+			EXCEPTION(EX_Invalid);
+		}
+		address += *cpu_reg_ptr;
+	}
+
+	addr->offset = address;
+
+	switch (addr_modes.default_mode) {
+	case 0:
+		break;
+	case VM86:
+		address += vm86_segment(addr_modes.override.segment, addr);
+		break;
+	case PM16:
+	case SEG32:
+		address = pm_address(FPU_modrm, addr_modes.override.segment,
+				     addr, address);
+		break;
+	default:
+		EXCEPTION(EX_INTERNAL | 0x133);
+	}
+
+	return (void __user *)address;
+}
+
+void __user *FPU_get_address_16(u_char FPU_modrm, unsigned long *fpu_eip,
+				struct address *addr, fpu_addr_modes addr_modes)
 {
-  u_char mod;
-  unsigned rm = FPU_modrm & 7;
-  long *cpu_reg_ptr;
-  int address = 0;     /* Initialized just to stop compiler warnings. */
-
-  /* Memory accessed via the cs selector is write protected
-     in `non-segmented' 32 bit protected mode. */
-  if ( !addr_modes.default_mode && (FPU_modrm & FPU_WRITE_BIT)
-      && (addr_modes.override.segment == PREFIX_CS_) )
-    {
-      math_abort(FPU_info,SIGSEGV);
-    }
-
-  addr->selector = FPU_DS;   /* Default, for 32 bit non-segmented mode. */
-
-  mod = (FPU_modrm >> 6) & 3;
-
-  if (rm == 4 && mod != 3)
-    {
-      address = sib(mod, fpu_eip);
-    }
-  else
-    {
-      cpu_reg_ptr = & REG_(rm);
-      switch (mod)
-	{
+	u_char mod;
+	unsigned rm = FPU_modrm & 7;
+	int address = 0;	/* Default used for mod == 0 */
+
+	/* Memory accessed via the cs selector is write protected
+	   in `non-segmented' 32 bit protected mode. */
+	if (!addr_modes.default_mode && (FPU_modrm & FPU_WRITE_BIT)
+	    && (addr_modes.override.segment == PREFIX_CS_)) {
+		math_abort(FPU_info, SIGSEGV);
+	}
+
+	addr->selector = FPU_DS;	/* Default, for 32 bit non-segmented mode. */
+
+	mod = (FPU_modrm >> 6) & 3;
+
+	switch (mod) {
 	case 0:
-	  if (rm == 5)
-	    {
-	      /* Special case: disp32 */
-	      RE_ENTRANT_CHECK_OFF;
-	      FPU_code_access_ok(4);
-	      FPU_get_user(address, (unsigned long __user *) (*fpu_eip));
-	      (*fpu_eip) += 4;
-	      RE_ENTRANT_CHECK_ON;
-	      addr->offset = address;
-	      return (void __user *) address;
-	    }
-	  else
-	    {
-	      address = *cpu_reg_ptr;  /* Just return the contents
-					  of the cpu register */
-	      addr->offset = address;
-	      return (void __user *) address;
-	    }
+		if (rm == 6) {
+			/* Special case: disp16 */
+			RE_ENTRANT_CHECK_OFF;
+			FPU_code_access_ok(2);
+			FPU_get_user(address,
+				     (unsigned short __user *)(*fpu_eip));
+			(*fpu_eip) += 2;
+			RE_ENTRANT_CHECK_ON;
+			goto add_segment;
+		}
+		break;
 	case 1:
-	  /* 8 bit signed displacement */
-	  RE_ENTRANT_CHECK_OFF;
-	  FPU_code_access_ok(1);
-	  FPU_get_user(address, (signed char __user *) (*fpu_eip));
-	  RE_ENTRANT_CHECK_ON;
-	  (*fpu_eip)++;
-	  break;
+		/* 8 bit signed displacement */
+		RE_ENTRANT_CHECK_OFF;
+		FPU_code_access_ok(1);
+		FPU_get_user(address, (signed char __user *)(*fpu_eip));
+		RE_ENTRANT_CHECK_ON;
+		(*fpu_eip)++;
+		break;
 	case 2:
-	  /* 32 bit displacement */
-	  RE_ENTRANT_CHECK_OFF;
-	  FPU_code_access_ok(4);
-	  FPU_get_user(address, (long __user *) (*fpu_eip));
-	  (*fpu_eip) += 4;
-	  RE_ENTRANT_CHECK_ON;
-	  break;
+		/* 16 bit displacement */
+		RE_ENTRANT_CHECK_OFF;
+		FPU_code_access_ok(2);
+		FPU_get_user(address, (unsigned short __user *)(*fpu_eip));
+		(*fpu_eip) += 2;
+		RE_ENTRANT_CHECK_ON;
+		break;
 	case 3:
-	  /* Not legal for the FPU */
-	  EXCEPTION(EX_Invalid);
+		/* Not legal for the FPU */
+		EXCEPTION(EX_Invalid);
+		break;
+	}
+	switch (rm) {
+	case 0:
+		address += FPU_info->___ebx + FPU_info->___esi;
+		break;
+	case 1:
+		address += FPU_info->___ebx + FPU_info->___edi;
+		break;
+	case 2:
+		address += FPU_info->___ebp + FPU_info->___esi;
+		if (addr_modes.override.segment == PREFIX_DEFAULT)
+			addr_modes.override.segment = PREFIX_SS_;
+		break;
+	case 3:
+		address += FPU_info->___ebp + FPU_info->___edi;
+		if (addr_modes.override.segment == PREFIX_DEFAULT)
+			addr_modes.override.segment = PREFIX_SS_;
+		break;
+	case 4:
+		address += FPU_info->___esi;
+		break;
+	case 5:
+		address += FPU_info->___edi;
+		break;
+	case 6:
+		address += FPU_info->___ebp;
+		if (addr_modes.override.segment == PREFIX_DEFAULT)
+			addr_modes.override.segment = PREFIX_SS_;
+		break;
+	case 7:
+		address += FPU_info->___ebx;
+		break;
 	}
-      address += *cpu_reg_ptr;
-    }
-
-  addr->offset = address;
-
-  switch ( addr_modes.default_mode )
-    {
-    case 0:
-      break;
-    case VM86:
-      address += vm86_segment(addr_modes.override.segment, addr);
-      break;
-    case PM16:
-    case SEG32:
-      address = pm_address(FPU_modrm, addr_modes.override.segment,
-			   addr, address);
-      break;
-    default:
-      EXCEPTION(EX_INTERNAL|0x133);
-    }
-
-  return (void __user *)address;
-}
 
+      add_segment:
+	address &= 0xffff;
 
-void __user *FPU_get_address_16(u_char FPU_modrm, unsigned long *fpu_eip,
-		     struct address *addr,
-		     fpu_addr_modes addr_modes)
-{
-  u_char mod;
-  unsigned rm = FPU_modrm & 7;
-  int address = 0;     /* Default used for mod == 0 */
-
-  /* Memory accessed via the cs selector is write protected
-     in `non-segmented' 32 bit protected mode. */
-  if ( !addr_modes.default_mode && (FPU_modrm & FPU_WRITE_BIT)
-      && (addr_modes.override.segment == PREFIX_CS_) )
-    {
-      math_abort(FPU_info,SIGSEGV);
-    }
-
-  addr->selector = FPU_DS;   /* Default, for 32 bit non-segmented mode. */
-
-  mod = (FPU_modrm >> 6) & 3;
-
-  switch (mod)
-    {
-    case 0:
-      if (rm == 6)
-	{
-	  /* Special case: disp16 */
-	  RE_ENTRANT_CHECK_OFF;
-	  FPU_code_access_ok(2);
-	  FPU_get_user(address, (unsigned short __user *) (*fpu_eip));
-	  (*fpu_eip) += 2;
-	  RE_ENTRANT_CHECK_ON;
-	  goto add_segment;
+	addr->offset = address;
+
+	switch (addr_modes.default_mode) {
+	case 0:
+		break;
+	case VM86:
+		address += vm86_segment(addr_modes.override.segment, addr);
+		break;
+	case PM16:
+	case SEG32:
+		address = pm_address(FPU_modrm, addr_modes.override.segment,
+				     addr, address);
+		break;
+	default:
+		EXCEPTION(EX_INTERNAL | 0x131);
 	}
-      break;
-    case 1:
-      /* 8 bit signed displacement */
-      RE_ENTRANT_CHECK_OFF;
-      FPU_code_access_ok(1);
-      FPU_get_user(address, (signed char __user *) (*fpu_eip));
-      RE_ENTRANT_CHECK_ON;
-      (*fpu_eip)++;
-      break;
-    case 2:
-      /* 16 bit displacement */
-      RE_ENTRANT_CHECK_OFF;
-      FPU_code_access_ok(2);
-      FPU_get_user(address, (unsigned short __user *) (*fpu_eip));
-      (*fpu_eip) += 2;
-      RE_ENTRANT_CHECK_ON;
-      break;
-    case 3:
-      /* Not legal for the FPU */
-      EXCEPTION(EX_Invalid);
-      break;
-    }
-  switch ( rm )
-    {
-    case 0:
-      address += FPU_info->___ebx + FPU_info->___esi;
-      break;
-    case 1:
-      address += FPU_info->___ebx + FPU_info->___edi;
-      break;
-    case 2:
-      address += FPU_info->___ebp + FPU_info->___esi;
-      if ( addr_modes.override.segment == PREFIX_DEFAULT )
-	addr_modes.override.segment = PREFIX_SS_;
-      break;
-    case 3:
-      address += FPU_info->___ebp + FPU_info->___edi;
-      if ( addr_modes.override.segment == PREFIX_DEFAULT )
-	addr_modes.override.segment = PREFIX_SS_;
-      break;
-    case 4:
-      address += FPU_info->___esi;
-      break;
-    case 5:
-      address += FPU_info->___edi;
-      break;
-    case 6:
-      address += FPU_info->___ebp;
-      if ( addr_modes.override.segment == PREFIX_DEFAULT )
-	addr_modes.override.segment = PREFIX_SS_;
-      break;
-    case 7:
-      address += FPU_info->___ebx;
-      break;
-    }
-
- add_segment:
-  address &= 0xffff;
-
-  addr->offset = address;
-
-  switch ( addr_modes.default_mode )
-    {
-    case 0:
-      break;
-    case VM86:
-      address += vm86_segment(addr_modes.override.segment, addr);
-      break;
-    case PM16:
-    case SEG32:
-      address = pm_address(FPU_modrm, addr_modes.override.segment,
-			   addr, address);
-      break;
-    default:
-      EXCEPTION(EX_INTERNAL|0x131);
-    }
-
-  return (void __user *)address ;
+
+	return (void __user *)address;
 }
diff --git a/arch/x86/math-emu/load_store.c b/arch/x86/math-emu/load_store.c
index eebd6fb1c8a8..2931ff355218 100644
--- a/arch/x86/math-emu/load_store.c
+++ b/arch/x86/math-emu/load_store.c
@@ -26,247 +26,257 @@
 #include "status_w.h"
 #include "control_w.h"
 
-
-#define _NONE_ 0   /* st0_ptr etc not needed */
-#define _REG0_ 1   /* Will be storing st(0) */
-#define _PUSH_ 3   /* Need to check for space to push onto stack */
-#define _null_ 4   /* Function illegal or not implemented */
+#define _NONE_ 0		/* st0_ptr etc not needed */
+#define _REG0_ 1		/* Will be storing st(0) */
+#define _PUSH_ 3		/* Need to check for space to push onto stack */
+#define _null_ 4		/* Function illegal or not implemented */
 
 #define pop_0()	{ FPU_settag0(TAG_Empty); top++; }
 
-
 static u_char const type_table[32] = {
-  _PUSH_, _PUSH_, _PUSH_, _PUSH_,
-  _null_, _null_, _null_, _null_,
-  _REG0_, _REG0_, _REG0_, _REG0_,
-  _REG0_, _REG0_, _REG0_, _REG0_,
-  _NONE_, _null_, _NONE_, _PUSH_,
-  _NONE_, _PUSH_, _null_, _PUSH_,
-  _NONE_, _null_, _NONE_, _REG0_,
-  _NONE_, _REG0_, _NONE_, _REG0_
-  };
+	_PUSH_, _PUSH_, _PUSH_, _PUSH_,
+	_null_, _null_, _null_, _null_,
+	_REG0_, _REG0_, _REG0_, _REG0_,
+	_REG0_, _REG0_, _REG0_, _REG0_,
+	_NONE_, _null_, _NONE_, _PUSH_,
+	_NONE_, _PUSH_, _null_, _PUSH_,
+	_NONE_, _null_, _NONE_, _REG0_,
+	_NONE_, _REG0_, _NONE_, _REG0_
+};
 
 u_char const data_sizes_16[32] = {
-  4,  4,  8,  2,  0,  0,  0,  0,
-  4,  4,  8,  2,  4,  4,  8,  2,
-  14, 0, 94, 10,  2, 10,  0,  8,  
-  14, 0, 94, 10,  2, 10,  2,  8
+	4, 4, 8, 2, 0, 0, 0, 0,
+	4, 4, 8, 2, 4, 4, 8, 2,
+	14, 0, 94, 10, 2, 10, 0, 8,
+	14, 0, 94, 10, 2, 10, 2, 8
 };
 
 static u_char const data_sizes_32[32] = {
-  4,  4,  8,  2,  0,  0,  0,  0,
-  4,  4,  8,  2,  4,  4,  8,  2,
-  28, 0,108, 10,  2, 10,  0,  8,  
-  28, 0,108, 10,  2, 10,  2,  8
+	4, 4, 8, 2, 0, 0, 0, 0,
+	4, 4, 8, 2, 4, 4, 8, 2,
+	28, 0, 108, 10, 2, 10, 0, 8,
+	28, 0, 108, 10, 2, 10, 2, 8
 };
 
 int FPU_load_store(u_char type, fpu_addr_modes addr_modes,
-		     void __user *data_address)
+		   void __user * data_address)
 {
-  FPU_REG loaded_data;
-  FPU_REG *st0_ptr;
-  u_char st0_tag = TAG_Empty;  /* This is just to stop a gcc warning. */
-  u_char loaded_tag;
+	FPU_REG loaded_data;
+	FPU_REG *st0_ptr;
+	u_char st0_tag = TAG_Empty;	/* This is just to stop a gcc warning. */
+	u_char loaded_tag;
 
-  st0_ptr = NULL;    /* Initialized just to stop compiler warnings. */
+	st0_ptr = NULL;		/* Initialized just to stop compiler warnings. */
 
-  if ( addr_modes.default_mode & PROTECTED )
-    {
-      if ( addr_modes.default_mode == SEG32 )
-	{
-	  if ( access_limit < data_sizes_32[type] )
-	    math_abort(FPU_info,SIGSEGV);
-	}
-      else if ( addr_modes.default_mode == PM16 )
-	{
-	  if ( access_limit < data_sizes_16[type] )
-	    math_abort(FPU_info,SIGSEGV);
-	}
+	if (addr_modes.default_mode & PROTECTED) {
+		if (addr_modes.default_mode == SEG32) {
+			if (access_limit < data_sizes_32[type])
+				math_abort(FPU_info, SIGSEGV);
+		} else if (addr_modes.default_mode == PM16) {
+			if (access_limit < data_sizes_16[type])
+				math_abort(FPU_info, SIGSEGV);
+		}
 #ifdef PARANOID
-      else
-	EXCEPTION(EX_INTERNAL|0x140);
+		else
+			EXCEPTION(EX_INTERNAL | 0x140);
 #endif /* PARANOID */
-    }
+	}
 
-  switch ( type_table[type] )
-    {
-    case _NONE_:
-      break;
-    case _REG0_:
-      st0_ptr = &st(0);       /* Some of these instructions pop after
-				 storing */
-      st0_tag = FPU_gettag0();
-      break;
-    case _PUSH_:
-      {
-	if ( FPU_gettagi(-1) != TAG_Empty )
-	  { FPU_stack_overflow(); return 0; }
-	top--;
-	st0_ptr = &st(0);
-      }
-      break;
-    case _null_:
-      FPU_illegal();
-      return 0;
+	switch (type_table[type]) {
+	case _NONE_:
+		break;
+	case _REG0_:
+		st0_ptr = &st(0);	/* Some of these instructions pop after
+					   storing */
+		st0_tag = FPU_gettag0();
+		break;
+	case _PUSH_:
+		{
+			if (FPU_gettagi(-1) != TAG_Empty) {
+				FPU_stack_overflow();
+				return 0;
+			}
+			top--;
+			st0_ptr = &st(0);
+		}
+		break;
+	case _null_:
+		FPU_illegal();
+		return 0;
 #ifdef PARANOID
-    default:
-      EXCEPTION(EX_INTERNAL|0x141);
-      return 0;
+	default:
+		EXCEPTION(EX_INTERNAL | 0x141);
+		return 0;
 #endif /* PARANOID */
-    }
-
-  switch ( type )
-    {
-    case 000:       /* fld m32real */
-      clear_C1();
-      loaded_tag = FPU_load_single((float __user *)data_address, &loaded_data);
-      if ( (loaded_tag == TAG_Special)
-	   && isNaN(&loaded_data)
-	   && (real_1op_NaN(&loaded_data) < 0) )
-	{
-	  top++;
-	  break;
-	}
-      FPU_copy_to_reg0(&loaded_data, loaded_tag);
-      break;
-    case 001:      /* fild m32int */
-      clear_C1();
-      loaded_tag = FPU_load_int32((long __user *)data_address, &loaded_data);
-      FPU_copy_to_reg0(&loaded_data, loaded_tag);
-      break;
-    case 002:      /* fld m64real */
-      clear_C1();
-      loaded_tag = FPU_load_double((double __user *)data_address, &loaded_data);
-      if ( (loaded_tag == TAG_Special)
-	   && isNaN(&loaded_data)
-	   && (real_1op_NaN(&loaded_data) < 0) )
-	{
-	  top++;
-	  break;
 	}
-      FPU_copy_to_reg0(&loaded_data, loaded_tag);
-      break;
-    case 003:      /* fild m16int */
-      clear_C1();
-      loaded_tag = FPU_load_int16((short __user *)data_address, &loaded_data);
-      FPU_copy_to_reg0(&loaded_data, loaded_tag);
-      break;
-    case 010:      /* fst m32real */
-      clear_C1();
-      FPU_store_single(st0_ptr, st0_tag, (float __user *)data_address);
-      break;
-    case 011:      /* fist m32int */
-      clear_C1();
-      FPU_store_int32(st0_ptr, st0_tag, (long __user *)data_address);
-      break;
-    case 012:     /* fst m64real */
-      clear_C1();
-      FPU_store_double(st0_ptr, st0_tag, (double __user *)data_address);
-      break;
-    case 013:     /* fist m16int */
-      clear_C1();
-      FPU_store_int16(st0_ptr, st0_tag, (short __user *)data_address);
-      break;
-    case 014:     /* fstp m32real */
-      clear_C1();
-      if ( FPU_store_single(st0_ptr, st0_tag, (float __user *)data_address) )
-	pop_0();  /* pop only if the number was actually stored
-		     (see the 80486 manual p16-28) */
-      break;
-    case 015:     /* fistp m32int */
-      clear_C1();
-      if ( FPU_store_int32(st0_ptr, st0_tag, (long __user *)data_address) )
-	pop_0();  /* pop only if the number was actually stored
-		     (see the 80486 manual p16-28) */
-      break;
-    case 016:     /* fstp m64real */
-      clear_C1();
-      if ( FPU_store_double(st0_ptr, st0_tag, (double __user *)data_address) )
-	pop_0();  /* pop only if the number was actually stored
-		     (see the 80486 manual p16-28) */
-      break;
-    case 017:     /* fistp m16int */
-      clear_C1();
-      if ( FPU_store_int16(st0_ptr, st0_tag, (short __user *)data_address) )
-	pop_0();  /* pop only if the number was actually stored
-		     (see the 80486 manual p16-28) */
-      break;
-    case 020:     /* fldenv  m14/28byte */
-      fldenv(addr_modes, (u_char __user *)data_address);
-      /* Ensure that the values just loaded are not changed by
-	 fix-up operations. */
-      return 1;
-    case 022:     /* frstor m94/108byte */
-      frstor(addr_modes, (u_char __user *)data_address);
-      /* Ensure that the values just loaded are not changed by
-	 fix-up operations. */
-      return 1;
-    case 023:     /* fbld m80dec */
-      clear_C1();
-      loaded_tag = FPU_load_bcd((u_char __user *)data_address);
-      FPU_settag0(loaded_tag);
-      break;
-    case 024:     /* fldcw */
-      RE_ENTRANT_CHECK_OFF;
-      FPU_access_ok(VERIFY_READ, data_address, 2);
-      FPU_get_user(control_word, (unsigned short __user *) data_address);
-      RE_ENTRANT_CHECK_ON;
-      if ( partial_status & ~control_word & CW_Exceptions )
-	partial_status |= (SW_Summary | SW_Backward);
-      else
-	partial_status &= ~(SW_Summary | SW_Backward);
+
+	switch (type) {
+	case 000:		/* fld m32real */
+		clear_C1();
+		loaded_tag =
+		    FPU_load_single((float __user *)data_address, &loaded_data);
+		if ((loaded_tag == TAG_Special)
+		    && isNaN(&loaded_data)
+		    && (real_1op_NaN(&loaded_data) < 0)) {
+			top++;
+			break;
+		}
+		FPU_copy_to_reg0(&loaded_data, loaded_tag);
+		break;
+	case 001:		/* fild m32int */
+		clear_C1();
+		loaded_tag =
+		    FPU_load_int32((long __user *)data_address, &loaded_data);
+		FPU_copy_to_reg0(&loaded_data, loaded_tag);
+		break;
+	case 002:		/* fld m64real */
+		clear_C1();
+		loaded_tag =
+		    FPU_load_double((double __user *)data_address,
+				    &loaded_data);
+		if ((loaded_tag == TAG_Special)
+		    && isNaN(&loaded_data)
+		    && (real_1op_NaN(&loaded_data) < 0)) {
+			top++;
+			break;
+		}
+		FPU_copy_to_reg0(&loaded_data, loaded_tag);
+		break;
+	case 003:		/* fild m16int */
+		clear_C1();
+		loaded_tag =
+		    FPU_load_int16((short __user *)data_address, &loaded_data);
+		FPU_copy_to_reg0(&loaded_data, loaded_tag);
+		break;
+	case 010:		/* fst m32real */
+		clear_C1();
+		FPU_store_single(st0_ptr, st0_tag,
+				 (float __user *)data_address);
+		break;
+	case 011:		/* fist m32int */
+		clear_C1();
+		FPU_store_int32(st0_ptr, st0_tag, (long __user *)data_address);
+		break;
+	case 012:		/* fst m64real */
+		clear_C1();
+		FPU_store_double(st0_ptr, st0_tag,
+				 (double __user *)data_address);
+		break;
+	case 013:		/* fist m16int */
+		clear_C1();
+		FPU_store_int16(st0_ptr, st0_tag, (short __user *)data_address);
+		break;
+	case 014:		/* fstp m32real */
+		clear_C1();
+		if (FPU_store_single
+		    (st0_ptr, st0_tag, (float __user *)data_address))
+			pop_0();	/* pop only if the number was actually stored
+					   (see the 80486 manual p16-28) */
+		break;
+	case 015:		/* fistp m32int */
+		clear_C1();
+		if (FPU_store_int32
+		    (st0_ptr, st0_tag, (long __user *)data_address))
+			pop_0();	/* pop only if the number was actually stored
+					   (see the 80486 manual p16-28) */
+		break;
+	case 016:		/* fstp m64real */
+		clear_C1();
+		if (FPU_store_double
+		    (st0_ptr, st0_tag, (double __user *)data_address))
+			pop_0();	/* pop only if the number was actually stored
+					   (see the 80486 manual p16-28) */
+		break;
+	case 017:		/* fistp m16int */
+		clear_C1();
+		if (FPU_store_int16
+		    (st0_ptr, st0_tag, (short __user *)data_address))
+			pop_0();	/* pop only if the number was actually stored
+					   (see the 80486 manual p16-28) */
+		break;
+	case 020:		/* fldenv  m14/28byte */
+		fldenv(addr_modes, (u_char __user *) data_address);
+		/* Ensure that the values just loaded are not changed by
+		   fix-up operations. */
+		return 1;
+	case 022:		/* frstor m94/108byte */
+		frstor(addr_modes, (u_char __user *) data_address);
+		/* Ensure that the values just loaded are not changed by
+		   fix-up operations. */
+		return 1;
+	case 023:		/* fbld m80dec */
+		clear_C1();
+		loaded_tag = FPU_load_bcd((u_char __user *) data_address);
+		FPU_settag0(loaded_tag);
+		break;
+	case 024:		/* fldcw */
+		RE_ENTRANT_CHECK_OFF;
+		FPU_access_ok(VERIFY_READ, data_address, 2);
+		FPU_get_user(control_word,
+			     (unsigned short __user *)data_address);
+		RE_ENTRANT_CHECK_ON;
+		if (partial_status & ~control_word & CW_Exceptions)
+			partial_status |= (SW_Summary | SW_Backward);
+		else
+			partial_status &= ~(SW_Summary | SW_Backward);
 #ifdef PECULIAR_486
-      control_word |= 0x40;  /* An 80486 appears to always set this bit */
+		control_word |= 0x40;	/* An 80486 appears to always set this bit */
 #endif /* PECULIAR_486 */
-      return 1;
-    case 025:      /* fld m80real */
-      clear_C1();
-      loaded_tag = FPU_load_extended((long double __user *)data_address, 0);
-      FPU_settag0(loaded_tag);
-      break;
-    case 027:      /* fild m64int */
-      clear_C1();
-      loaded_tag = FPU_load_int64((long long __user *)data_address);
-      if (loaded_tag == TAG_Error)
+		return 1;
+	case 025:		/* fld m80real */
+		clear_C1();
+		loaded_tag =
+		    FPU_load_extended((long double __user *)data_address, 0);
+		FPU_settag0(loaded_tag);
+		break;
+	case 027:		/* fild m64int */
+		clear_C1();
+		loaded_tag = FPU_load_int64((long long __user *)data_address);
+		if (loaded_tag == TAG_Error)
+			return 0;
+		FPU_settag0(loaded_tag);
+		break;
+	case 030:		/* fstenv  m14/28byte */
+		fstenv(addr_modes, (u_char __user *) data_address);
+		return 1;
+	case 032:		/* fsave */
+		fsave(addr_modes, (u_char __user *) data_address);
+		return 1;
+	case 033:		/* fbstp m80dec */
+		clear_C1();
+		if (FPU_store_bcd
+		    (st0_ptr, st0_tag, (u_char __user *) data_address))
+			pop_0();	/* pop only if the number was actually stored
+					   (see the 80486 manual p16-28) */
+		break;
+	case 034:		/* fstcw m16int */
+		RE_ENTRANT_CHECK_OFF;
+		FPU_access_ok(VERIFY_WRITE, data_address, 2);
+		FPU_put_user(control_word,
+			     (unsigned short __user *)data_address);
+		RE_ENTRANT_CHECK_ON;
+		return 1;
+	case 035:		/* fstp m80real */
+		clear_C1();
+		if (FPU_store_extended
+		    (st0_ptr, st0_tag, (long double __user *)data_address))
+			pop_0();	/* pop only if the number was actually stored
+					   (see the 80486 manual p16-28) */
+		break;
+	case 036:		/* fstsw m2byte */
+		RE_ENTRANT_CHECK_OFF;
+		FPU_access_ok(VERIFY_WRITE, data_address, 2);
+		FPU_put_user(status_word(),
+			     (unsigned short __user *)data_address);
+		RE_ENTRANT_CHECK_ON;
+		return 1;
+	case 037:		/* fistp m64int */
+		clear_C1();
+		if (FPU_store_int64
+		    (st0_ptr, st0_tag, (long long __user *)data_address))
+			pop_0();	/* pop only if the number was actually stored
+					   (see the 80486 manual p16-28) */
+		break;
+	}
 	return 0;
-      FPU_settag0(loaded_tag);
-      break;
-    case 030:     /* fstenv  m14/28byte */
-      fstenv(addr_modes, (u_char __user *)data_address);
-      return 1;
-    case 032:      /* fsave */
-      fsave(addr_modes, (u_char __user *)data_address);
-      return 1;
-    case 033:      /* fbstp m80dec */
-      clear_C1();
-      if ( FPU_store_bcd(st0_ptr, st0_tag, (u_char __user *)data_address) )
-	pop_0();  /* pop only if the number was actually stored
-		     (see the 80486 manual p16-28) */
-      break;
-    case 034:      /* fstcw m16int */
-      RE_ENTRANT_CHECK_OFF;
-      FPU_access_ok(VERIFY_WRITE,data_address,2);
-      FPU_put_user(control_word, (unsigned short __user *) data_address);
-      RE_ENTRANT_CHECK_ON;
-      return 1;
-    case 035:      /* fstp m80real */
-      clear_C1();
-      if ( FPU_store_extended(st0_ptr, st0_tag, (long double __user *)data_address) )
-	pop_0();  /* pop only if the number was actually stored
-		     (see the 80486 manual p16-28) */
-      break;
-    case 036:      /* fstsw m2byte */
-      RE_ENTRANT_CHECK_OFF;
-      FPU_access_ok(VERIFY_WRITE,data_address,2);
-      FPU_put_user(status_word(),(unsigned short __user *) data_address);
-      RE_ENTRANT_CHECK_ON;
-      return 1;
-    case 037:      /* fistp m64int */
-      clear_C1();
-      if ( FPU_store_int64(st0_ptr, st0_tag, (long long __user *)data_address) )
-	pop_0();  /* pop only if the number was actually stored
-		     (see the 80486 manual p16-28) */
-      break;
-    }
-  return 0;
 }
diff --git a/arch/x86/math-emu/poly.h b/arch/x86/math-emu/poly.h
index 4db798114923..f317de7d8864 100644
--- a/arch/x86/math-emu/poly.h
+++ b/arch/x86/math-emu/poly.h
@@ -21,9 +21,9 @@
    allows. 9-byte would probably be sufficient.
    */
 typedef struct {
-  unsigned long lsw;
-  unsigned long midw;
-  unsigned long msw;
+	unsigned long lsw;
+	unsigned long midw;
+	unsigned long msw;
 } Xsig;
 
 asmlinkage void mul64(unsigned long long const *a, unsigned long long const *b,
@@ -33,12 +33,12 @@ asmlinkage void polynomial_Xsig(Xsig *, const unsigned long long *x,
 
 asmlinkage void mul32_Xsig(Xsig *, const unsigned long mult);
 asmlinkage void mul64_Xsig(Xsig *, const unsigned long long *mult);
-asmlinkage void mul_Xsig_Xsig(Xsig *dest, const Xsig *mult);
+asmlinkage void mul_Xsig_Xsig(Xsig * dest, const Xsig * mult);
 
 asmlinkage void shr_Xsig(Xsig *, const int n);
 asmlinkage int round_Xsig(Xsig *);
 asmlinkage int norm_Xsig(Xsig *);
-asmlinkage void div_Xsig(Xsig *x1, const Xsig *x2, const Xsig *dest);
+asmlinkage void div_Xsig(Xsig * x1, const Xsig * x2, const Xsig * dest);
 
 /* Macro to extract the most significant 32 bits from a long long */
 #define LL_MSW(x)     (((unsigned long *)&x)[1])
@@ -49,7 +49,6 @@ asmlinkage void div_Xsig(Xsig *x1, const Xsig *x2, const Xsig *dest);
 /* Macro to access the 8 ms bytes of an Xsig as a long long */
 #define XSIG_LL(x)         (*(unsigned long long *)&x.midw)
 
-
 /*
    Need to run gcc with optimizations on to get these to
    actually be in-line.
@@ -63,59 +62,53 @@ asmlinkage void div_Xsig(Xsig *x1, const Xsig *x2, const Xsig *dest);
 static inline unsigned long mul_32_32(const unsigned long arg1,
 				      const unsigned long arg2)
 {
-  int retval;
-  asm volatile ("mull %2; movl %%edx,%%eax" \
-		:"=a" (retval) \
-		:"0" (arg1), "g" (arg2) \
-		:"dx");
-  return retval;
+	int retval;
+	asm volatile ("mull %2; movl %%edx,%%eax":"=a" (retval)
+		      :"0"(arg1), "g"(arg2)
+		      :"dx");
+	return retval;
 }
 
-
 /* Add the 12 byte Xsig x2 to Xsig dest, with no checks for overflow. */
-static inline void add_Xsig_Xsig(Xsig *dest, const Xsig *x2)
+static inline void add_Xsig_Xsig(Xsig * dest, const Xsig * x2)
 {
-  asm volatile ("movl %1,%%edi; movl %2,%%esi;\n"
-                "movl (%%esi),%%eax; addl %%eax,(%%edi);\n"
-                "movl 4(%%esi),%%eax; adcl %%eax,4(%%edi);\n"
-                "movl 8(%%esi),%%eax; adcl %%eax,8(%%edi);\n"
-                 :"=g" (*dest):"g" (dest), "g" (x2)
-                 :"ax","si","di");
+	asm volatile ("movl %1,%%edi; movl %2,%%esi;\n"
+		      "movl (%%esi),%%eax; addl %%eax,(%%edi);\n"
+		      "movl 4(%%esi),%%eax; adcl %%eax,4(%%edi);\n"
+		      "movl 8(%%esi),%%eax; adcl %%eax,8(%%edi);\n":"=g"
+		      (*dest):"g"(dest), "g"(x2)
+		      :"ax", "si", "di");
 }
 
-
 /* Add the 12 byte Xsig x2 to Xsig dest, adjust exp if overflow occurs. */
 /* Note: the constraints in the asm statement didn't always work properly
    with gcc 2.5.8.  Changing from using edi to using ecx got around the
    problem, but keep fingers crossed! */
-static inline void add_two_Xsig(Xsig *dest, const Xsig *x2, long int *exp)
+static inline void add_two_Xsig(Xsig * dest, const Xsig * x2, long int *exp)
 {
-  asm volatile ("movl %2,%%ecx; movl %3,%%esi;\n"
-                "movl (%%esi),%%eax; addl %%eax,(%%ecx);\n"
-                "movl 4(%%esi),%%eax; adcl %%eax,4(%%ecx);\n"
-                "movl 8(%%esi),%%eax; adcl %%eax,8(%%ecx);\n"
-                "jnc 0f;\n"
-		"rcrl 8(%%ecx); rcrl 4(%%ecx); rcrl (%%ecx)\n"
-                "movl %4,%%ecx; incl (%%ecx)\n"
-                "movl $1,%%eax; jmp 1f;\n"
-                "0: xorl %%eax,%%eax;\n"
-                "1:\n"
-		:"=g" (*exp), "=g" (*dest)
-		:"g" (dest), "g" (x2), "g" (exp)
-		:"cx","si","ax");
+	asm volatile ("movl %2,%%ecx; movl %3,%%esi;\n"
+		      "movl (%%esi),%%eax; addl %%eax,(%%ecx);\n"
+		      "movl 4(%%esi),%%eax; adcl %%eax,4(%%ecx);\n"
+		      "movl 8(%%esi),%%eax; adcl %%eax,8(%%ecx);\n"
+		      "jnc 0f;\n"
+		      "rcrl 8(%%ecx); rcrl 4(%%ecx); rcrl (%%ecx)\n"
+		      "movl %4,%%ecx; incl (%%ecx)\n"
+		      "movl $1,%%eax; jmp 1f;\n"
+		      "0: xorl %%eax,%%eax;\n" "1:\n":"=g" (*exp), "=g"(*dest)
+		      :"g"(dest), "g"(x2), "g"(exp)
+		      :"cx", "si", "ax");
 }
 
-
 /* Negate (subtract from 1.0) the 12 byte Xsig */
 /* This is faster in a loop on my 386 than using the "neg" instruction. */
-static inline void negate_Xsig(Xsig *x)
+static inline void negate_Xsig(Xsig * x)
 {
-  asm volatile("movl %1,%%esi;\n"
-               "xorl %%ecx,%%ecx;\n"
-               "movl %%ecx,%%eax; subl (%%esi),%%eax; movl %%eax,(%%esi);\n"
-               "movl %%ecx,%%eax; sbbl 4(%%esi),%%eax; movl %%eax,4(%%esi);\n"
-               "movl %%ecx,%%eax; sbbl 8(%%esi),%%eax; movl %%eax,8(%%esi);\n"
-               :"=g" (*x):"g" (x):"si","ax","cx");
+	asm volatile ("movl %1,%%esi;\n"
+		      "xorl %%ecx,%%ecx;\n"
+		      "movl %%ecx,%%eax; subl (%%esi),%%eax; movl %%eax,(%%esi);\n"
+		      "movl %%ecx,%%eax; sbbl 4(%%esi),%%eax; movl %%eax,4(%%esi);\n"
+		      "movl %%ecx,%%eax; sbbl 8(%%esi),%%eax; movl %%eax,8(%%esi);\n":"=g"
+		      (*x):"g"(x):"si", "ax", "cx");
 }
 
 #endif /* _POLY_H */
diff --git a/arch/x86/math-emu/poly_2xm1.c b/arch/x86/math-emu/poly_2xm1.c
index 9766ad5e9743..d8f2be3c8383 100644
--- a/arch/x86/math-emu/poly_2xm1.c
+++ b/arch/x86/math-emu/poly_2xm1.c
@@ -17,21 +17,19 @@
 #include "control_w.h"
 #include "poly.h"
 
-
 #define	HIPOWER	11
-static const unsigned long long lterms[HIPOWER] =
-{
-  0x0000000000000000LL,  /* This term done separately as 12 bytes */
-  0xf5fdeffc162c7543LL,
-  0x1c6b08d704a0bfa6LL,
-  0x0276556df749cc21LL,
-  0x002bb0ffcf14f6b8LL,
-  0x0002861225ef751cLL,
-  0x00001ffcbfcd5422LL,
-  0x00000162c005d5f1LL,
-  0x0000000da96ccb1bLL,
-  0x0000000078d1b897LL,
-  0x000000000422b029LL
+static const unsigned long long lterms[HIPOWER] = {
+	0x0000000000000000LL,	/* This term done separately as 12 bytes */
+	0xf5fdeffc162c7543LL,
+	0x1c6b08d704a0bfa6LL,
+	0x0276556df749cc21LL,
+	0x002bb0ffcf14f6b8LL,
+	0x0002861225ef751cLL,
+	0x00001ffcbfcd5422LL,
+	0x00000162c005d5f1LL,
+	0x0000000da96ccb1bLL,
+	0x0000000078d1b897LL,
+	0x000000000422b029LL
 };
 
 static const Xsig hiterm = MK_XSIG(0xb17217f7, 0xd1cf79ab, 0xc8a39194);
@@ -45,112 +43,103 @@ static const Xsig shiftterm2 = MK_XSIG(0xb504f333, 0xf9de6484, 0x597d89b3);
 static const Xsig shiftterm3 = MK_XSIG(0xd744fcca, 0xd69d6af4, 0x39a68bb9);
 
 static const Xsig *shiftterm[] = { &shiftterm0, &shiftterm1,
-				     &shiftterm2, &shiftterm3 };
-
+	&shiftterm2, &shiftterm3
+};
 
 /*--- poly_2xm1() -----------------------------------------------------------+
  | Requires st(0) which is TAG_Valid and < 1.                                |
  +---------------------------------------------------------------------------*/
-int	poly_2xm1(u_char sign, FPU_REG *arg, FPU_REG *result)
+int poly_2xm1(u_char sign, FPU_REG * arg, FPU_REG * result)
 {
-  long int              exponent, shift;
-  unsigned long long    Xll;
-  Xsig                  accumulator, Denom, argSignif;
-  u_char                tag;
+	long int exponent, shift;
+	unsigned long long Xll;
+	Xsig accumulator, Denom, argSignif;
+	u_char tag;
 
-  exponent = exponent16(arg);
+	exponent = exponent16(arg);
 
 #ifdef PARANOID
-  if ( exponent >= 0 )    	/* Don't want a |number| >= 1.0 */
-    {
-      /* Number negative, too large, or not Valid. */
-      EXCEPTION(EX_INTERNAL|0x127);
-      return 1;
-    }
+	if (exponent >= 0) {	/* Don't want a |number| >= 1.0 */
+		/* Number negative, too large, or not Valid. */
+		EXCEPTION(EX_INTERNAL | 0x127);
+		return 1;
+	}
 #endif /* PARANOID */
 
-  argSignif.lsw = 0;
-  XSIG_LL(argSignif) = Xll = significand(arg);
-
-  if ( exponent == -1 )
-    {
-      shift = (argSignif.msw & 0x40000000) ? 3 : 2;
-      /* subtract 0.5 or 0.75 */
-      exponent -= 2;
-      XSIG_LL(argSignif) <<= 2;
-      Xll <<= 2;
-    }
-  else if ( exponent == -2 )
-    {
-      shift = 1;
-      /* subtract 0.25 */
-      exponent--;
-      XSIG_LL(argSignif) <<= 1;
-      Xll <<= 1;
-    }
-  else
-    shift = 0;
-
-  if ( exponent < -2 )
-    {
-      /* Shift the argument right by the required places. */
-      if ( FPU_shrx(&Xll, -2-exponent) >= 0x80000000U )
-	Xll++;	/* round up */
-    }
-
-  accumulator.lsw = accumulator.midw = accumulator.msw = 0;
-  polynomial_Xsig(&accumulator, &Xll, lterms, HIPOWER-1);
-  mul_Xsig_Xsig(&accumulator, &argSignif);
-  shr_Xsig(&accumulator, 3);
-
-  mul_Xsig_Xsig(&argSignif, &hiterm);   /* The leading term */
-  add_two_Xsig(&accumulator, &argSignif, &exponent);
-
-  if ( shift )
-    {
-      /* The argument is large, use the identity:
-	 f(x+a) = f(a) * (f(x) + 1) - 1;
-	 */
-      shr_Xsig(&accumulator, - exponent);
-      accumulator.msw |= 0x80000000;      /* add 1.0 */
-      mul_Xsig_Xsig(&accumulator, shiftterm[shift]);
-      accumulator.msw &= 0x3fffffff;      /* subtract 1.0 */
-      exponent = 1;
-    }
-
-  if ( sign != SIGN_POS )
-    {
-      /* The argument is negative, use the identity:
-	     f(-x) = -f(x) / (1 + f(x))
-	 */
-      Denom.lsw = accumulator.lsw;
-      XSIG_LL(Denom) = XSIG_LL(accumulator);
-      if ( exponent < 0 )
-	shr_Xsig(&Denom, - exponent);
-      else if ( exponent > 0 )
-	{
-	  /* exponent must be 1 here */
-	  XSIG_LL(Denom) <<= 1;
-	  if ( Denom.lsw & 0x80000000 )
-	    XSIG_LL(Denom) |= 1;
-	  (Denom.lsw) <<= 1;
+	argSignif.lsw = 0;
+	XSIG_LL(argSignif) = Xll = significand(arg);
+
+	if (exponent == -1) {
+		shift = (argSignif.msw & 0x40000000) ? 3 : 2;
+		/* subtract 0.5 or 0.75 */
+		exponent -= 2;
+		XSIG_LL(argSignif) <<= 2;
+		Xll <<= 2;
+	} else if (exponent == -2) {
+		shift = 1;
+		/* subtract 0.25 */
+		exponent--;
+		XSIG_LL(argSignif) <<= 1;
+		Xll <<= 1;
+	} else
+		shift = 0;
+
+	if (exponent < -2) {
+		/* Shift the argument right by the required places. */
+		if (FPU_shrx(&Xll, -2 - exponent) >= 0x80000000U)
+			Xll++;	/* round up */
+	}
+
+	accumulator.lsw = accumulator.midw = accumulator.msw = 0;
+	polynomial_Xsig(&accumulator, &Xll, lterms, HIPOWER - 1);
+	mul_Xsig_Xsig(&accumulator, &argSignif);
+	shr_Xsig(&accumulator, 3);
+
+	mul_Xsig_Xsig(&argSignif, &hiterm);	/* The leading term */
+	add_two_Xsig(&accumulator, &argSignif, &exponent);
+
+	if (shift) {
+		/* The argument is large, use the identity:
+		   f(x+a) = f(a) * (f(x) + 1) - 1;
+		 */
+		shr_Xsig(&accumulator, -exponent);
+		accumulator.msw |= 0x80000000;	/* add 1.0 */
+		mul_Xsig_Xsig(&accumulator, shiftterm[shift]);
+		accumulator.msw &= 0x3fffffff;	/* subtract 1.0 */
+		exponent = 1;
+	}
+
+	if (sign != SIGN_POS) {
+		/* The argument is negative, use the identity:
+		   f(-x) = -f(x) / (1 + f(x))
+		 */
+		Denom.lsw = accumulator.lsw;
+		XSIG_LL(Denom) = XSIG_LL(accumulator);
+		if (exponent < 0)
+			shr_Xsig(&Denom, -exponent);
+		else if (exponent > 0) {
+			/* exponent must be 1 here */
+			XSIG_LL(Denom) <<= 1;
+			if (Denom.lsw & 0x80000000)
+				XSIG_LL(Denom) |= 1;
+			(Denom.lsw) <<= 1;
+		}
+		Denom.msw |= 0x80000000;	/* add 1.0 */
+		div_Xsig(&accumulator, &Denom, &accumulator);
 	}
-      Denom.msw |= 0x80000000;      /* add 1.0 */
-      div_Xsig(&accumulator, &Denom, &accumulator);
-    }
 
-  /* Convert to 64 bit signed-compatible */
-  exponent += round_Xsig(&accumulator);
+	/* Convert to 64 bit signed-compatible */
+	exponent += round_Xsig(&accumulator);
 
-  result = &st(0);
-  significand(result) = XSIG_LL(accumulator);
-  setexponent16(result, exponent);
+	result = &st(0);
+	significand(result) = XSIG_LL(accumulator);
+	setexponent16(result, exponent);
 
-  tag = FPU_round(result, 1, 0, FULL_PRECISION, sign);
+	tag = FPU_round(result, 1, 0, FULL_PRECISION, sign);
 
-  setsign(result, sign);
-  FPU_settag0(tag);
+	setsign(result, sign);
+	FPU_settag0(tag);
 
-  return 0;
+	return 0;
 
 }
diff --git a/arch/x86/math-emu/poly_atan.c b/arch/x86/math-emu/poly_atan.c
index 82f702952f69..2f4ac8143fc3 100644
--- a/arch/x86/math-emu/poly_atan.c
+++ b/arch/x86/math-emu/poly_atan.c
@@ -18,28 +18,25 @@
 #include "control_w.h"
 #include "poly.h"
 
-
 #define	HIPOWERon	6	/* odd poly, negative terms */
-static const unsigned long long oddnegterms[HIPOWERon] =
-{
-  0x0000000000000000LL, /* Dummy (not for - 1.0) */
-  0x015328437f756467LL,
-  0x0005dda27b73dec6LL,
-  0x0000226bf2bfb91aLL,
-  0x000000ccc439c5f7LL,
-  0x0000000355438407LL
-} ;
+static const unsigned long long oddnegterms[HIPOWERon] = {
+	0x0000000000000000LL,	/* Dummy (not for - 1.0) */
+	0x015328437f756467LL,
+	0x0005dda27b73dec6LL,
+	0x0000226bf2bfb91aLL,
+	0x000000ccc439c5f7LL,
+	0x0000000355438407LL
+};
 
 #define	HIPOWERop	6	/* odd poly, positive terms */
-static const unsigned long long oddplterms[HIPOWERop] =
-{
+static const unsigned long long oddplterms[HIPOWERop] = {
 /*  0xaaaaaaaaaaaaaaabLL,  transferred to fixedpterm[] */
-  0x0db55a71875c9ac2LL,
-  0x0029fce2d67880b0LL,
-  0x0000dfd3908b4596LL,
-  0x00000550fd61dab4LL,
-  0x0000001c9422b3f9LL,
-  0x000000003e3301e1LL
+	0x0db55a71875c9ac2LL,
+	0x0029fce2d67880b0LL,
+	0x0000dfd3908b4596LL,
+	0x00000550fd61dab4LL,
+	0x0000001c9422b3f9LL,
+	0x000000003e3301e1LL
 };
 
 static const unsigned long long denomterm = 0xebd9b842c5c53a0eLL;
@@ -48,182 +45,164 @@ static const Xsig fixedpterm = MK_XSIG(0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaaa);
 
 static const Xsig pi_signif = MK_XSIG(0xc90fdaa2, 0x2168c234, 0xc4c6628b);
 
-
 /*--- poly_atan() -----------------------------------------------------------+
  |                                                                           |
  +---------------------------------------------------------------------------*/
-void	poly_atan(FPU_REG *st0_ptr, u_char st0_tag,
-		  FPU_REG *st1_ptr, u_char st1_tag)
+void poly_atan(FPU_REG * st0_ptr, u_char st0_tag,
+	       FPU_REG * st1_ptr, u_char st1_tag)
 {
-  u_char	transformed, inverted,
-                sign1, sign2;
-  int           exponent;
-  long int   	dummy_exp;
-  Xsig          accumulator, Numer, Denom, accumulatore, argSignif,
-                argSq, argSqSq;
-  u_char        tag;
-  
-  sign1 = getsign(st0_ptr);
-  sign2 = getsign(st1_ptr);
-  if ( st0_tag == TAG_Valid )
-    {
-      exponent = exponent(st0_ptr);
-    }
-  else
-    {
-      /* This gives non-compatible stack contents... */
-      FPU_to_exp16(st0_ptr, st0_ptr);
-      exponent = exponent16(st0_ptr);
-    }
-  if ( st1_tag == TAG_Valid )
-    {
-      exponent -= exponent(st1_ptr);
-    }
-  else
-    {
-      /* This gives non-compatible stack contents... */
-      FPU_to_exp16(st1_ptr, st1_ptr);
-      exponent -= exponent16(st1_ptr);
-    }
-
-  if ( (exponent < 0) || ((exponent == 0) &&
-			  ((st0_ptr->sigh < st1_ptr->sigh) ||
-			   ((st0_ptr->sigh == st1_ptr->sigh) &&
-			    (st0_ptr->sigl < st1_ptr->sigl))) ) )
-    {
-      inverted = 1;
-      Numer.lsw = Denom.lsw = 0;
-      XSIG_LL(Numer) = significand(st0_ptr);
-      XSIG_LL(Denom) = significand(st1_ptr);
-    }
-  else
-    {
-      inverted = 0;
-      exponent = -exponent;
-      Numer.lsw = Denom.lsw = 0;
-      XSIG_LL(Numer) = significand(st1_ptr);
-      XSIG_LL(Denom) = significand(st0_ptr);
-     }
-  div_Xsig(&Numer, &Denom, &argSignif);
-  exponent += norm_Xsig(&argSignif);
-
-  if ( (exponent >= -1)
-      || ((exponent == -2) && (argSignif.msw > 0xd413ccd0)) )
-    {
-      /* The argument is greater than sqrt(2)-1 (=0.414213562...) */
-      /* Convert the argument by an identity for atan */
-      transformed = 1;
-
-      if ( exponent >= 0 )
-	{
+	u_char transformed, inverted, sign1, sign2;
+	int exponent;
+	long int dummy_exp;
+	Xsig accumulator, Numer, Denom, accumulatore, argSignif, argSq, argSqSq;
+	u_char tag;
+
+	sign1 = getsign(st0_ptr);
+	sign2 = getsign(st1_ptr);
+	if (st0_tag == TAG_Valid) {
+		exponent = exponent(st0_ptr);
+	} else {
+		/* This gives non-compatible stack contents... */
+		FPU_to_exp16(st0_ptr, st0_ptr);
+		exponent = exponent16(st0_ptr);
+	}
+	if (st1_tag == TAG_Valid) {
+		exponent -= exponent(st1_ptr);
+	} else {
+		/* This gives non-compatible stack contents... */
+		FPU_to_exp16(st1_ptr, st1_ptr);
+		exponent -= exponent16(st1_ptr);
+	}
+
+	if ((exponent < 0) || ((exponent == 0) &&
+			       ((st0_ptr->sigh < st1_ptr->sigh) ||
+				((st0_ptr->sigh == st1_ptr->sigh) &&
+				 (st0_ptr->sigl < st1_ptr->sigl))))) {
+		inverted = 1;
+		Numer.lsw = Denom.lsw = 0;
+		XSIG_LL(Numer) = significand(st0_ptr);
+		XSIG_LL(Denom) = significand(st1_ptr);
+	} else {
+		inverted = 0;
+		exponent = -exponent;
+		Numer.lsw = Denom.lsw = 0;
+		XSIG_LL(Numer) = significand(st1_ptr);
+		XSIG_LL(Denom) = significand(st0_ptr);
+	}
+	div_Xsig(&Numer, &Denom, &argSignif);
+	exponent += norm_Xsig(&argSignif);
+
+	if ((exponent >= -1)
+	    || ((exponent == -2) && (argSignif.msw > 0xd413ccd0))) {
+		/* The argument is greater than sqrt(2)-1 (=0.414213562...) */
+		/* Convert the argument by an identity for atan */
+		transformed = 1;
+
+		if (exponent >= 0) {
 #ifdef PARANOID
-	  if ( !( (exponent == 0) && 
-		 (argSignif.lsw == 0) && (argSignif.midw == 0) &&
-		 (argSignif.msw == 0x80000000) ) )
-	    {
-	      EXCEPTION(EX_INTERNAL|0x104);  /* There must be a logic error */
-	      return;
-	    }
+			if (!((exponent == 0) &&
+			      (argSignif.lsw == 0) && (argSignif.midw == 0) &&
+			      (argSignif.msw == 0x80000000))) {
+				EXCEPTION(EX_INTERNAL | 0x104);	/* There must be a logic error */
+				return;
+			}
 #endif /* PARANOID */
-	  argSignif.msw = 0;   /* Make the transformed arg -> 0.0 */
+			argSignif.msw = 0;	/* Make the transformed arg -> 0.0 */
+		} else {
+			Numer.lsw = Denom.lsw = argSignif.lsw;
+			XSIG_LL(Numer) = XSIG_LL(Denom) = XSIG_LL(argSignif);
+
+			if (exponent < -1)
+				shr_Xsig(&Numer, -1 - exponent);
+			negate_Xsig(&Numer);
+
+			shr_Xsig(&Denom, -exponent);
+			Denom.msw |= 0x80000000;
+
+			div_Xsig(&Numer, &Denom, &argSignif);
+
+			exponent = -1 + norm_Xsig(&argSignif);
+		}
+	} else {
+		transformed = 0;
+	}
+
+	argSq.lsw = argSignif.lsw;
+	argSq.midw = argSignif.midw;
+	argSq.msw = argSignif.msw;
+	mul_Xsig_Xsig(&argSq, &argSq);
+
+	argSqSq.lsw = argSq.lsw;
+	argSqSq.midw = argSq.midw;
+	argSqSq.msw = argSq.msw;
+	mul_Xsig_Xsig(&argSqSq, &argSqSq);
+
+	accumulatore.lsw = argSq.lsw;
+	XSIG_LL(accumulatore) = XSIG_LL(argSq);
+
+	shr_Xsig(&argSq, 2 * (-1 - exponent - 1));
+	shr_Xsig(&argSqSq, 4 * (-1 - exponent - 1));
+
+	/* Now have argSq etc with binary point at the left
+	   .1xxxxxxxx */
+
+	/* Do the basic fixed point polynomial evaluation */
+	accumulator.msw = accumulator.midw = accumulator.lsw = 0;
+	polynomial_Xsig(&accumulator, &XSIG_LL(argSqSq),
+			oddplterms, HIPOWERop - 1);
+	mul64_Xsig(&accumulator, &XSIG_LL(argSq));
+	negate_Xsig(&accumulator);
+	polynomial_Xsig(&accumulator, &XSIG_LL(argSqSq), oddnegterms,
+			HIPOWERon - 1);
+	negate_Xsig(&accumulator);
+	add_two_Xsig(&accumulator, &fixedpterm, &dummy_exp);
+
+	mul64_Xsig(&accumulatore, &denomterm);
+	shr_Xsig(&accumulatore, 1 + 2 * (-1 - exponent));
+	accumulatore.msw |= 0x80000000;
+
+	div_Xsig(&accumulator, &accumulatore, &accumulator);
+
+	mul_Xsig_Xsig(&accumulator, &argSignif);
+	mul_Xsig_Xsig(&accumulator, &argSq);
+
+	shr_Xsig(&accumulator, 3);
+	negate_Xsig(&accumulator);
+	add_Xsig_Xsig(&accumulator, &argSignif);
+
+	if (transformed) {
+		/* compute pi/4 - accumulator */
+		shr_Xsig(&accumulator, -1 - exponent);
+		negate_Xsig(&accumulator);
+		add_Xsig_Xsig(&accumulator, &pi_signif);
+		exponent = -1;
+	}
+
+	if (inverted) {
+		/* compute pi/2 - accumulator */
+		shr_Xsig(&accumulator, -exponent);
+		negate_Xsig(&accumulator);
+		add_Xsig_Xsig(&accumulator, &pi_signif);
+		exponent = 0;
 	}
-      else
-	{
-	  Numer.lsw = Denom.lsw = argSignif.lsw;
-	  XSIG_LL(Numer) = XSIG_LL(Denom) = XSIG_LL(argSignif);
-
-	  if ( exponent < -1 )
-	    shr_Xsig(&Numer, -1-exponent);
-	  negate_Xsig(&Numer);
-      
-	  shr_Xsig(&Denom, -exponent);
-	  Denom.msw |= 0x80000000;
-      
-	  div_Xsig(&Numer, &Denom, &argSignif);
-
-	  exponent = -1 + norm_Xsig(&argSignif);
+
+	if (sign1) {
+		/* compute pi - accumulator */
+		shr_Xsig(&accumulator, 1 - exponent);
+		negate_Xsig(&accumulator);
+		add_Xsig_Xsig(&accumulator, &pi_signif);
+		exponent = 1;
 	}
-    }
-  else
-    {
-      transformed = 0;
-    }
-
-  argSq.lsw = argSignif.lsw; argSq.midw = argSignif.midw;
-  argSq.msw = argSignif.msw;
-  mul_Xsig_Xsig(&argSq, &argSq);
-  
-  argSqSq.lsw = argSq.lsw; argSqSq.midw = argSq.midw; argSqSq.msw = argSq.msw;
-  mul_Xsig_Xsig(&argSqSq, &argSqSq);
-
-  accumulatore.lsw = argSq.lsw;
-  XSIG_LL(accumulatore) = XSIG_LL(argSq);
-
-  shr_Xsig(&argSq, 2*(-1-exponent-1));
-  shr_Xsig(&argSqSq, 4*(-1-exponent-1));
-
-  /* Now have argSq etc with binary point at the left
-     .1xxxxxxxx */
-
-  /* Do the basic fixed point polynomial evaluation */
-  accumulator.msw = accumulator.midw = accumulator.lsw = 0;
-  polynomial_Xsig(&accumulator, &XSIG_LL(argSqSq),
-		   oddplterms, HIPOWERop-1);
-  mul64_Xsig(&accumulator, &XSIG_LL(argSq));
-  negate_Xsig(&accumulator);
-  polynomial_Xsig(&accumulator, &XSIG_LL(argSqSq), oddnegterms, HIPOWERon-1);
-  negate_Xsig(&accumulator);
-  add_two_Xsig(&accumulator, &fixedpterm, &dummy_exp);
-
-  mul64_Xsig(&accumulatore, &denomterm);
-  shr_Xsig(&accumulatore, 1 + 2*(-1-exponent));
-  accumulatore.msw |= 0x80000000;
-
-  div_Xsig(&accumulator, &accumulatore, &accumulator);
-
-  mul_Xsig_Xsig(&accumulator, &argSignif);
-  mul_Xsig_Xsig(&accumulator, &argSq);
-
-  shr_Xsig(&accumulator, 3);
-  negate_Xsig(&accumulator);
-  add_Xsig_Xsig(&accumulator, &argSignif);
-
-  if ( transformed )
-    {
-      /* compute pi/4 - accumulator */
-      shr_Xsig(&accumulator, -1-exponent);
-      negate_Xsig(&accumulator);
-      add_Xsig_Xsig(&accumulator, &pi_signif);
-      exponent = -1;
-    }
-
-  if ( inverted )
-    {
-      /* compute pi/2 - accumulator */
-      shr_Xsig(&accumulator, -exponent);
-      negate_Xsig(&accumulator);
-      add_Xsig_Xsig(&accumulator, &pi_signif);
-      exponent = 0;
-    }
-
-  if ( sign1 )
-    {
-      /* compute pi - accumulator */
-      shr_Xsig(&accumulator, 1 - exponent);
-      negate_Xsig(&accumulator);
-      add_Xsig_Xsig(&accumulator, &pi_signif);
-      exponent = 1;
-    }
-
-  exponent += round_Xsig(&accumulator);
-
-  significand(st1_ptr) = XSIG_LL(accumulator);
-  setexponent16(st1_ptr, exponent);
-
-  tag = FPU_round(st1_ptr, 1, 0, FULL_PRECISION, sign2);
-  FPU_settagi(1, tag);
-
-  set_precision_flag_up();  /* We do not really know if up or down,
-			       use this as the default. */
+
+	exponent += round_Xsig(&accumulator);
+
+	significand(st1_ptr) = XSIG_LL(accumulator);
+	setexponent16(st1_ptr, exponent);
+
+	tag = FPU_round(st1_ptr, 1, 0, FULL_PRECISION, sign2);
+	FPU_settagi(1, tag);
+
+	set_precision_flag_up();	/* We do not really know if up or down,
+					   use this as the default. */
 
 }
diff --git a/arch/x86/math-emu/poly_l2.c b/arch/x86/math-emu/poly_l2.c
index dd00e1d5b074..c0102ae87511 100644
--- a/arch/x86/math-emu/poly_l2.c
+++ b/arch/x86/math-emu/poly_l2.c
@@ -10,7 +10,6 @@
  |                                                                           |
  +---------------------------------------------------------------------------*/
 
-
 #include "exception.h"
 #include "reg_constant.h"
 #include "fpu_emu.h"
@@ -18,255 +17,228 @@
 #include "control_w.h"
 #include "poly.h"
 
-
 static void log2_kernel(FPU_REG const *arg, u_char argsign,
-			Xsig *accum_result, long int *expon);
-
+			Xsig * accum_result, long int *expon);
 
 /*--- poly_l2() -------------------------------------------------------------+
  |   Base 2 logarithm by a polynomial approximation.                         |
  +---------------------------------------------------------------------------*/
-void	poly_l2(FPU_REG *st0_ptr, FPU_REG *st1_ptr, u_char st1_sign)
+void poly_l2(FPU_REG * st0_ptr, FPU_REG * st1_ptr, u_char st1_sign)
 {
-  long int	       exponent, expon, expon_expon;
-  Xsig                 accumulator, expon_accum, yaccum;
-  u_char		       sign, argsign;
-  FPU_REG              x;
-  int                  tag;
-
-  exponent = exponent16(st0_ptr);
-
-  /* From st0_ptr, make a number > sqrt(2)/2 and < sqrt(2) */
-  if ( st0_ptr->sigh > (unsigned)0xb504f334 )
-    {
-      /* Treat as  sqrt(2)/2 < st0_ptr < 1 */
-      significand(&x) = - significand(st0_ptr);
-      setexponent16(&x, -1);
-      exponent++;
-      argsign = SIGN_NEG;
-    }
-  else
-    {
-      /* Treat as  1 <= st0_ptr < sqrt(2) */
-      x.sigh = st0_ptr->sigh - 0x80000000;
-      x.sigl = st0_ptr->sigl;
-      setexponent16(&x, 0);
-      argsign = SIGN_POS;
-    }
-  tag = FPU_normalize_nuo(&x);
-
-  if ( tag == TAG_Zero )
-    {
-      expon = 0;
-      accumulator.msw = accumulator.midw = accumulator.lsw = 0;
-    }
-  else
-    {
-      log2_kernel(&x, argsign, &accumulator, &expon);
-    }
-
-  if ( exponent < 0 )
-    {
-      sign = SIGN_NEG;
-      exponent = -exponent;
-    }
-  else
-    sign = SIGN_POS;
-  expon_accum.msw = exponent; expon_accum.midw = expon_accum.lsw = 0;
-  if ( exponent )
-    {
-      expon_expon = 31 + norm_Xsig(&expon_accum);
-      shr_Xsig(&accumulator, expon_expon - expon);
-
-      if ( sign ^ argsign )
-	negate_Xsig(&accumulator);
-      add_Xsig_Xsig(&accumulator, &expon_accum);
-    }
-  else
-    {
-      expon_expon = expon;
-      sign = argsign;
-    }
-
-  yaccum.lsw = 0; XSIG_LL(yaccum) = significand(st1_ptr);
-  mul_Xsig_Xsig(&accumulator, &yaccum);
-
-  expon_expon += round_Xsig(&accumulator);
-
-  if ( accumulator.msw == 0 )
-    {
-      FPU_copy_to_reg1(&CONST_Z, TAG_Zero);
-      return;
-    }
-
-  significand(st1_ptr) = XSIG_LL(accumulator);
-  setexponent16(st1_ptr, expon_expon + exponent16(st1_ptr) + 1);
-
-  tag = FPU_round(st1_ptr, 1, 0, FULL_PRECISION, sign ^ st1_sign);
-  FPU_settagi(1, tag);
-
-  set_precision_flag_up();  /* 80486 appears to always do this */
-
-  return;
+	long int exponent, expon, expon_expon;
+	Xsig accumulator, expon_accum, yaccum;
+	u_char sign, argsign;
+	FPU_REG x;
+	int tag;
+
+	exponent = exponent16(st0_ptr);
+
+	/* From st0_ptr, make a number > sqrt(2)/2 and < sqrt(2) */
+	if (st0_ptr->sigh > (unsigned)0xb504f334) {
+		/* Treat as  sqrt(2)/2 < st0_ptr < 1 */
+		significand(&x) = -significand(st0_ptr);
+		setexponent16(&x, -1);
+		exponent++;
+		argsign = SIGN_NEG;
+	} else {
+		/* Treat as  1 <= st0_ptr < sqrt(2) */
+		x.sigh = st0_ptr->sigh - 0x80000000;
+		x.sigl = st0_ptr->sigl;
+		setexponent16(&x, 0);
+		argsign = SIGN_POS;
+	}
+	tag = FPU_normalize_nuo(&x);
 
-}
+	if (tag == TAG_Zero) {
+		expon = 0;
+		accumulator.msw = accumulator.midw = accumulator.lsw = 0;
+	} else {
+		log2_kernel(&x, argsign, &accumulator, &expon);
+	}
+
+	if (exponent < 0) {
+		sign = SIGN_NEG;
+		exponent = -exponent;
+	} else
+		sign = SIGN_POS;
+	expon_accum.msw = exponent;
+	expon_accum.midw = expon_accum.lsw = 0;
+	if (exponent) {
+		expon_expon = 31 + norm_Xsig(&expon_accum);
+		shr_Xsig(&accumulator, expon_expon - expon);
+
+		if (sign ^ argsign)
+			negate_Xsig(&accumulator);
+		add_Xsig_Xsig(&accumulator, &expon_accum);
+	} else {
+		expon_expon = expon;
+		sign = argsign;
+	}
+
+	yaccum.lsw = 0;
+	XSIG_LL(yaccum) = significand(st1_ptr);
+	mul_Xsig_Xsig(&accumulator, &yaccum);
+
+	expon_expon += round_Xsig(&accumulator);
+
+	if (accumulator.msw == 0) {
+		FPU_copy_to_reg1(&CONST_Z, TAG_Zero);
+		return;
+	}
+
+	significand(st1_ptr) = XSIG_LL(accumulator);
+	setexponent16(st1_ptr, expon_expon + exponent16(st1_ptr) + 1);
 
+	tag = FPU_round(st1_ptr, 1, 0, FULL_PRECISION, sign ^ st1_sign);
+	FPU_settagi(1, tag);
+
+	set_precision_flag_up();	/* 80486 appears to always do this */
+
+	return;
+
+}
 
 /*--- poly_l2p1() -----------------------------------------------------------+
  |   Base 2 logarithm by a polynomial approximation.                         |
  |   log2(x+1)                                                               |
  +---------------------------------------------------------------------------*/
-int	poly_l2p1(u_char sign0, u_char sign1,
-		  FPU_REG *st0_ptr, FPU_REG *st1_ptr, FPU_REG *dest)
+int poly_l2p1(u_char sign0, u_char sign1,
+	      FPU_REG * st0_ptr, FPU_REG * st1_ptr, FPU_REG * dest)
 {
-  u_char             	tag;
-  long int        	exponent;
-  Xsig              	accumulator, yaccum;
+	u_char tag;
+	long int exponent;
+	Xsig accumulator, yaccum;
 
-  if ( exponent16(st0_ptr) < 0 )
-    {
-      log2_kernel(st0_ptr, sign0, &accumulator, &exponent);
+	if (exponent16(st0_ptr) < 0) {
+		log2_kernel(st0_ptr, sign0, &accumulator, &exponent);
 
-      yaccum.lsw = 0;
-      XSIG_LL(yaccum) = significand(st1_ptr);
-      mul_Xsig_Xsig(&accumulator, &yaccum);
+		yaccum.lsw = 0;
+		XSIG_LL(yaccum) = significand(st1_ptr);
+		mul_Xsig_Xsig(&accumulator, &yaccum);
 
-      exponent += round_Xsig(&accumulator);
+		exponent += round_Xsig(&accumulator);
 
-      exponent += exponent16(st1_ptr) + 1;
-      if ( exponent < EXP_WAY_UNDER ) exponent = EXP_WAY_UNDER;
+		exponent += exponent16(st1_ptr) + 1;
+		if (exponent < EXP_WAY_UNDER)
+			exponent = EXP_WAY_UNDER;
 
-      significand(dest) = XSIG_LL(accumulator);
-      setexponent16(dest, exponent);
+		significand(dest) = XSIG_LL(accumulator);
+		setexponent16(dest, exponent);
 
-      tag = FPU_round(dest, 1, 0, FULL_PRECISION, sign0 ^ sign1);
-      FPU_settagi(1, tag);
+		tag = FPU_round(dest, 1, 0, FULL_PRECISION, sign0 ^ sign1);
+		FPU_settagi(1, tag);
 
-      if ( tag == TAG_Valid )
-	set_precision_flag_up();   /* 80486 appears to always do this */
-    }
-  else
-    {
-      /* The magnitude of st0_ptr is far too large. */
+		if (tag == TAG_Valid)
+			set_precision_flag_up();	/* 80486 appears to always do this */
+	} else {
+		/* The magnitude of st0_ptr is far too large. */
 
-      if ( sign0 != SIGN_POS )
-	{
-	  /* Trying to get the log of a negative number. */
-#ifdef PECULIAR_486   /* Stupid 80486 doesn't worry about log(negative). */
-	  changesign(st1_ptr);
+		if (sign0 != SIGN_POS) {
+			/* Trying to get the log of a negative number. */
+#ifdef PECULIAR_486		/* Stupid 80486 doesn't worry about log(negative). */
+			changesign(st1_ptr);
 #else
-	  if ( arith_invalid(1) < 0 )
-	    return 1;
+			if (arith_invalid(1) < 0)
+				return 1;
 #endif /* PECULIAR_486 */
-	}
+		}
 
-      /* 80486 appears to do this */
-      if ( sign0 == SIGN_NEG )
-	set_precision_flag_down();
-      else
-	set_precision_flag_up();
-    }
+		/* 80486 appears to do this */
+		if (sign0 == SIGN_NEG)
+			set_precision_flag_down();
+		else
+			set_precision_flag_up();
+	}
 
-  if ( exponent(dest) <= EXP_UNDER )
-    EXCEPTION(EX_Underflow);
+	if (exponent(dest) <= EXP_UNDER)
+		EXCEPTION(EX_Underflow);
 
-  return 0;
+	return 0;
 
 }
 
-
-
-
 #undef HIPOWER
 #define	HIPOWER	10
-static const unsigned long long logterms[HIPOWER] =
-{
-  0x2a8eca5705fc2ef0LL,
-  0xf6384ee1d01febceLL,
-  0x093bb62877cdf642LL,
-  0x006985d8a9ec439bLL,
-  0x0005212c4f55a9c8LL,
-  0x00004326a16927f0LL,
-  0x0000038d1d80a0e7LL,
-  0x0000003141cc80c6LL,
-  0x00000002b1668c9fLL,
-  0x000000002c7a46aaLL
+static const unsigned long long logterms[HIPOWER] = {
+	0x2a8eca5705fc2ef0LL,
+	0xf6384ee1d01febceLL,
+	0x093bb62877cdf642LL,
+	0x006985d8a9ec439bLL,
+	0x0005212c4f55a9c8LL,
+	0x00004326a16927f0LL,
+	0x0000038d1d80a0e7LL,
+	0x0000003141cc80c6LL,
+	0x00000002b1668c9fLL,
+	0x000000002c7a46aaLL
 };
 
 static const unsigned long leadterm = 0xb8000000;
 
-
 /*--- log2_kernel() ---------------------------------------------------------+
  |   Base 2 logarithm by a polynomial approximation.                         |
  |   log2(x+1)                                                               |
  +---------------------------------------------------------------------------*/
-static void log2_kernel(FPU_REG const *arg, u_char argsign, Xsig *accum_result,
+static void log2_kernel(FPU_REG const *arg, u_char argsign, Xsig * accum_result,
 			long int *expon)
 {
-  long int             exponent, adj;
-  unsigned long long   Xsq;
-  Xsig                 accumulator, Numer, Denom, argSignif, arg_signif;
-
-  exponent = exponent16(arg);
-  Numer.lsw = Denom.lsw = 0;
-  XSIG_LL(Numer) = XSIG_LL(Denom) = significand(arg);
-  if ( argsign == SIGN_POS )
-    {
-      shr_Xsig(&Denom, 2 - (1 + exponent));
-      Denom.msw |= 0x80000000;
-      div_Xsig(&Numer, &Denom, &argSignif);
-    }
-  else
-    {
-      shr_Xsig(&Denom, 1 - (1 + exponent));
-      negate_Xsig(&Denom);
-      if ( Denom.msw & 0x80000000 )
-	{
-	  div_Xsig(&Numer, &Denom, &argSignif);
-	  exponent ++;
-	}
-      else
-	{
-	  /* Denom must be 1.0 */
-	  argSignif.lsw = Numer.lsw; argSignif.midw = Numer.midw;
-	  argSignif.msw = Numer.msw;
+	long int exponent, adj;
+	unsigned long long Xsq;
+	Xsig accumulator, Numer, Denom, argSignif, arg_signif;
+
+	exponent = exponent16(arg);
+	Numer.lsw = Denom.lsw = 0;
+	XSIG_LL(Numer) = XSIG_LL(Denom) = significand(arg);
+	if (argsign == SIGN_POS) {
+		shr_Xsig(&Denom, 2 - (1 + exponent));
+		Denom.msw |= 0x80000000;
+		div_Xsig(&Numer, &Denom, &argSignif);
+	} else {
+		shr_Xsig(&Denom, 1 - (1 + exponent));
+		negate_Xsig(&Denom);
+		if (Denom.msw & 0x80000000) {
+			div_Xsig(&Numer, &Denom, &argSignif);
+			exponent++;
+		} else {
+			/* Denom must be 1.0 */
+			argSignif.lsw = Numer.lsw;
+			argSignif.midw = Numer.midw;
+			argSignif.msw = Numer.msw;
+		}
 	}
-    }
 
 #ifndef PECULIAR_486
-  /* Should check here that  |local_arg|  is within the valid range */
-  if ( exponent >= -2 )
-    {
-      if ( (exponent > -2) ||
-	  (argSignif.msw > (unsigned)0xafb0ccc0) )
-	{
-	  /* The argument is too large */
+	/* Should check here that  |local_arg|  is within the valid range */
+	if (exponent >= -2) {
+		if ((exponent > -2) || (argSignif.msw > (unsigned)0xafb0ccc0)) {
+			/* The argument is too large */
+		}
 	}
-    }
 #endif /* PECULIAR_486 */
 
-  arg_signif.lsw = argSignif.lsw; XSIG_LL(arg_signif) = XSIG_LL(argSignif);
-  adj = norm_Xsig(&argSignif);
-  accumulator.lsw = argSignif.lsw; XSIG_LL(accumulator) = XSIG_LL(argSignif);
-  mul_Xsig_Xsig(&accumulator, &accumulator);
-  shr_Xsig(&accumulator, 2*(-1 - (1 + exponent + adj)));
-  Xsq = XSIG_LL(accumulator);
-  if ( accumulator.lsw & 0x80000000 )
-    Xsq++;
-
-  accumulator.msw = accumulator.midw = accumulator.lsw = 0;
-  /* Do the basic fixed point polynomial evaluation */
-  polynomial_Xsig(&accumulator, &Xsq, logterms, HIPOWER-1);
-
-  mul_Xsig_Xsig(&accumulator, &argSignif);
-  shr_Xsig(&accumulator, 6 - adj);
-
-  mul32_Xsig(&arg_signif, leadterm);
-  add_two_Xsig(&accumulator, &arg_signif, &exponent);
-
-  *expon = exponent + 1;
-  accum_result->lsw = accumulator.lsw;
-  accum_result->midw = accumulator.midw;
-  accum_result->msw = accumulator.msw;
+	arg_signif.lsw = argSignif.lsw;
+	XSIG_LL(arg_signif) = XSIG_LL(argSignif);
+	adj = norm_Xsig(&argSignif);
+	accumulator.lsw = argSignif.lsw;
+	XSIG_LL(accumulator) = XSIG_LL(argSignif);
+	mul_Xsig_Xsig(&accumulator, &accumulator);
+	shr_Xsig(&accumulator, 2 * (-1 - (1 + exponent + adj)));
+	Xsq = XSIG_LL(accumulator);
+	if (accumulator.lsw & 0x80000000)
+		Xsq++;
+
+	accumulator.msw = accumulator.midw = accumulator.lsw = 0;
+	/* Do the basic fixed point polynomial evaluation */
+	polynomial_Xsig(&accumulator, &Xsq, logterms, HIPOWER - 1);
+
+	mul_Xsig_Xsig(&accumulator, &argSignif);
+	shr_Xsig(&accumulator, 6 - adj);
+
+	mul32_Xsig(&arg_signif, leadterm);
+	add_two_Xsig(&accumulator, &arg_signif, &exponent);
+
+	*expon = exponent + 1;
+	accum_result->lsw = accumulator.lsw;
+	accum_result->midw = accumulator.midw;
+	accum_result->msw = accumulator.msw;
 
 }
diff --git a/arch/x86/math-emu/poly_sin.c b/arch/x86/math-emu/poly_sin.c
index a36313fb06f1..7273ae0c7692 100644
--- a/arch/x86/math-emu/poly_sin.c
+++ b/arch/x86/math-emu/poly_sin.c
@@ -11,7 +11,6 @@
  |                                                                           |
  +---------------------------------------------------------------------------*/
 
-
 #include "exception.h"
 #include "reg_constant.h"
 #include "fpu_emu.h"
@@ -19,379 +18,361 @@
 #include "control_w.h"
 #include "poly.h"
 
-
 #define	N_COEFF_P	4
 #define	N_COEFF_N	4
 
-static const unsigned long long pos_terms_l[N_COEFF_P] =
-{
-  0xaaaaaaaaaaaaaaabLL,
-  0x00d00d00d00cf906LL,
-  0x000006b99159a8bbLL,
-  0x000000000d7392e6LL
+static const unsigned long long pos_terms_l[N_COEFF_P] = {
+	0xaaaaaaaaaaaaaaabLL,
+	0x00d00d00d00cf906LL,
+	0x000006b99159a8bbLL,
+	0x000000000d7392e6LL
 };
 
-static const unsigned long long neg_terms_l[N_COEFF_N] =
-{
-  0x2222222222222167LL,
-  0x0002e3bc74aab624LL,
-  0x0000000b09229062LL,
-  0x00000000000c7973LL
+static const unsigned long long neg_terms_l[N_COEFF_N] = {
+	0x2222222222222167LL,
+	0x0002e3bc74aab624LL,
+	0x0000000b09229062LL,
+	0x00000000000c7973LL
 };
 
-
-
 #define	N_COEFF_PH	4
 #define	N_COEFF_NH	4
-static const unsigned long long pos_terms_h[N_COEFF_PH] =
-{
-  0x0000000000000000LL,
-  0x05b05b05b05b0406LL,
-  0x000049f93edd91a9LL,
-  0x00000000c9c9ed62LL
+static const unsigned long long pos_terms_h[N_COEFF_PH] = {
+	0x0000000000000000LL,
+	0x05b05b05b05b0406LL,
+	0x000049f93edd91a9LL,
+	0x00000000c9c9ed62LL
 };
 
-static const unsigned long long neg_terms_h[N_COEFF_NH] =
-{
-  0xaaaaaaaaaaaaaa98LL,
-  0x001a01a01a019064LL,
-  0x0000008f76c68a77LL,
-  0x0000000000d58f5eLL
+static const unsigned long long neg_terms_h[N_COEFF_NH] = {
+	0xaaaaaaaaaaaaaa98LL,
+	0x001a01a01a019064LL,
+	0x0000008f76c68a77LL,
+	0x0000000000d58f5eLL
 };
 
-
 /*--- poly_sine() -----------------------------------------------------------+
  |                                                                           |
  +---------------------------------------------------------------------------*/
-void	poly_sine(FPU_REG *st0_ptr)
+void poly_sine(FPU_REG * st0_ptr)
 {
-  int                 exponent, echange;
-  Xsig                accumulator, argSqrd, argTo4;
-  unsigned long       fix_up, adj;
-  unsigned long long  fixed_arg;
-  FPU_REG	      result;
+	int exponent, echange;
+	Xsig accumulator, argSqrd, argTo4;
+	unsigned long fix_up, adj;
+	unsigned long long fixed_arg;
+	FPU_REG result;
 
-  exponent = exponent(st0_ptr);
+	exponent = exponent(st0_ptr);
 
-  accumulator.lsw = accumulator.midw = accumulator.msw = 0;
+	accumulator.lsw = accumulator.midw = accumulator.msw = 0;
 
-  /* Split into two ranges, for arguments below and above 1.0 */
-  /* The boundary between upper and lower is approx 0.88309101259 */
-  if ( (exponent < -1) || ((exponent == -1) && (st0_ptr->sigh <= 0xe21240aa)) )
-    {
-      /* The argument is <= 0.88309101259 */
+	/* Split into two ranges, for arguments below and above 1.0 */
+	/* The boundary between upper and lower is approx 0.88309101259 */
+	if ((exponent < -1)
+	    || ((exponent == -1) && (st0_ptr->sigh <= 0xe21240aa))) {
+		/* The argument is <= 0.88309101259 */
+
+		argSqrd.msw = st0_ptr->sigh;
+		argSqrd.midw = st0_ptr->sigl;
+		argSqrd.lsw = 0;
+		mul64_Xsig(&argSqrd, &significand(st0_ptr));
+		shr_Xsig(&argSqrd, 2 * (-1 - exponent));
+		argTo4.msw = argSqrd.msw;
+		argTo4.midw = argSqrd.midw;
+		argTo4.lsw = argSqrd.lsw;
+		mul_Xsig_Xsig(&argTo4, &argTo4);
 
-      argSqrd.msw = st0_ptr->sigh; argSqrd.midw = st0_ptr->sigl; argSqrd.lsw = 0;
-      mul64_Xsig(&argSqrd, &significand(st0_ptr));
-      shr_Xsig(&argSqrd, 2*(-1-exponent));
-      argTo4.msw = argSqrd.msw; argTo4.midw = argSqrd.midw;
-      argTo4.lsw = argSqrd.lsw;
-      mul_Xsig_Xsig(&argTo4, &argTo4);
+		polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), neg_terms_l,
+				N_COEFF_N - 1);
+		mul_Xsig_Xsig(&accumulator, &argSqrd);
+		negate_Xsig(&accumulator);
 
-      polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), neg_terms_l,
-		      N_COEFF_N-1);
-      mul_Xsig_Xsig(&accumulator, &argSqrd);
-      negate_Xsig(&accumulator);
+		polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), pos_terms_l,
+				N_COEFF_P - 1);
 
-      polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), pos_terms_l,
-		      N_COEFF_P-1);
+		shr_Xsig(&accumulator, 2);	/* Divide by four */
+		accumulator.msw |= 0x80000000;	/* Add 1.0 */
 
-      shr_Xsig(&accumulator, 2);    /* Divide by four */
-      accumulator.msw |= 0x80000000;  /* Add 1.0 */
+		mul64_Xsig(&accumulator, &significand(st0_ptr));
+		mul64_Xsig(&accumulator, &significand(st0_ptr));
+		mul64_Xsig(&accumulator, &significand(st0_ptr));
 
-      mul64_Xsig(&accumulator, &significand(st0_ptr));
-      mul64_Xsig(&accumulator, &significand(st0_ptr));
-      mul64_Xsig(&accumulator, &significand(st0_ptr));
+		/* Divide by four, FPU_REG compatible, etc */
+		exponent = 3 * exponent;
 
-      /* Divide by four, FPU_REG compatible, etc */
-      exponent = 3*exponent;
+		/* The minimum exponent difference is 3 */
+		shr_Xsig(&accumulator, exponent(st0_ptr) - exponent);
 
-      /* The minimum exponent difference is 3 */
-      shr_Xsig(&accumulator, exponent(st0_ptr) - exponent);
+		negate_Xsig(&accumulator);
+		XSIG_LL(accumulator) += significand(st0_ptr);
 
-      negate_Xsig(&accumulator);
-      XSIG_LL(accumulator) += significand(st0_ptr);
+		echange = round_Xsig(&accumulator);
 
-      echange = round_Xsig(&accumulator);
+		setexponentpos(&result, exponent(st0_ptr) + echange);
+	} else {
+		/* The argument is > 0.88309101259 */
+		/* We use sin(st(0)) = cos(pi/2-st(0)) */
 
-      setexponentpos(&result, exponent(st0_ptr) + echange);
-    }
-  else
-    {
-      /* The argument is > 0.88309101259 */
-      /* We use sin(st(0)) = cos(pi/2-st(0)) */
+		fixed_arg = significand(st0_ptr);
 
-      fixed_arg = significand(st0_ptr);
+		if (exponent == 0) {
+			/* The argument is >= 1.0 */
 
-      if ( exponent == 0 )
-	{
-	  /* The argument is >= 1.0 */
+			/* Put the binary point at the left. */
+			fixed_arg <<= 1;
+		}
+		/* pi/2 in hex is: 1.921fb54442d18469 898CC51701B839A2 52049C1 */
+		fixed_arg = 0x921fb54442d18469LL - fixed_arg;
+		/* There is a special case which arises due to rounding, to fix here. */
+		if (fixed_arg == 0xffffffffffffffffLL)
+			fixed_arg = 0;
 
-	  /* Put the binary point at the left. */
-	  fixed_arg <<= 1;
-	}
-      /* pi/2 in hex is: 1.921fb54442d18469 898CC51701B839A2 52049C1 */
-      fixed_arg = 0x921fb54442d18469LL - fixed_arg;
-      /* There is a special case which arises due to rounding, to fix here. */
-      if ( fixed_arg == 0xffffffffffffffffLL )
-	fixed_arg = 0;
+		XSIG_LL(argSqrd) = fixed_arg;
+		argSqrd.lsw = 0;
+		mul64_Xsig(&argSqrd, &fixed_arg);
 
-      XSIG_LL(argSqrd) = fixed_arg; argSqrd.lsw = 0;
-      mul64_Xsig(&argSqrd, &fixed_arg);
+		XSIG_LL(argTo4) = XSIG_LL(argSqrd);
+		argTo4.lsw = argSqrd.lsw;
+		mul_Xsig_Xsig(&argTo4, &argTo4);
 
-      XSIG_LL(argTo4) = XSIG_LL(argSqrd); argTo4.lsw = argSqrd.lsw;
-      mul_Xsig_Xsig(&argTo4, &argTo4);
+		polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), neg_terms_h,
+				N_COEFF_NH - 1);
+		mul_Xsig_Xsig(&accumulator, &argSqrd);
+		negate_Xsig(&accumulator);
 
-      polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), neg_terms_h,
-		      N_COEFF_NH-1);
-      mul_Xsig_Xsig(&accumulator, &argSqrd);
-      negate_Xsig(&accumulator);
+		polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), pos_terms_h,
+				N_COEFF_PH - 1);
+		negate_Xsig(&accumulator);
 
-      polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), pos_terms_h,
-		      N_COEFF_PH-1);
-      negate_Xsig(&accumulator);
+		mul64_Xsig(&accumulator, &fixed_arg);
+		mul64_Xsig(&accumulator, &fixed_arg);
 
-      mul64_Xsig(&accumulator, &fixed_arg);
-      mul64_Xsig(&accumulator, &fixed_arg);
+		shr_Xsig(&accumulator, 3);
+		negate_Xsig(&accumulator);
 
-      shr_Xsig(&accumulator, 3);
-      negate_Xsig(&accumulator);
+		add_Xsig_Xsig(&accumulator, &argSqrd);
 
-      add_Xsig_Xsig(&accumulator, &argSqrd);
+		shr_Xsig(&accumulator, 1);
 
-      shr_Xsig(&accumulator, 1);
+		accumulator.lsw |= 1;	/* A zero accumulator here would cause problems */
+		negate_Xsig(&accumulator);
 
-      accumulator.lsw |= 1;  /* A zero accumulator here would cause problems */
-      negate_Xsig(&accumulator);
+		/* The basic computation is complete. Now fix the answer to
+		   compensate for the error due to the approximation used for
+		   pi/2
+		 */
 
-      /* The basic computation is complete. Now fix the answer to
-	 compensate for the error due to the approximation used for
-	 pi/2
-	 */
+		/* This has an exponent of -65 */
+		fix_up = 0x898cc517;
+		/* The fix-up needs to be improved for larger args */
+		if (argSqrd.msw & 0xffc00000) {
+			/* Get about 32 bit precision in these: */
+			fix_up -= mul_32_32(0x898cc517, argSqrd.msw) / 6;
+		}
+		fix_up = mul_32_32(fix_up, LL_MSW(fixed_arg));
 
-      /* This has an exponent of -65 */
-      fix_up = 0x898cc517;
-      /* The fix-up needs to be improved for larger args */
-      if ( argSqrd.msw & 0xffc00000 )
-	{
-	  /* Get about 32 bit precision in these: */
-	  fix_up -= mul_32_32(0x898cc517, argSqrd.msw) / 6;
-	}
-      fix_up = mul_32_32(fix_up, LL_MSW(fixed_arg));
+		adj = accumulator.lsw;	/* temp save */
+		accumulator.lsw -= fix_up;
+		if (accumulator.lsw > adj)
+			XSIG_LL(accumulator)--;
 
-      adj = accumulator.lsw;    /* temp save */
-      accumulator.lsw -= fix_up;
-      if ( accumulator.lsw > adj )
-	XSIG_LL(accumulator) --;
+		echange = round_Xsig(&accumulator);
 
-      echange = round_Xsig(&accumulator);
-
-      setexponentpos(&result, echange - 1);
-    }
+		setexponentpos(&result, echange - 1);
+	}
 
-  significand(&result) = XSIG_LL(accumulator);
-  setsign(&result, getsign(st0_ptr));
-  FPU_copy_to_reg0(&result, TAG_Valid);
+	significand(&result) = XSIG_LL(accumulator);
+	setsign(&result, getsign(st0_ptr));
+	FPU_copy_to_reg0(&result, TAG_Valid);
 
 #ifdef PARANOID
-  if ( (exponent(&result) >= 0)
-      && (significand(&result) > 0x8000000000000000LL) )
-    {
-      EXCEPTION(EX_INTERNAL|0x150);
-    }
+	if ((exponent(&result) >= 0)
+	    && (significand(&result) > 0x8000000000000000LL)) {
+		EXCEPTION(EX_INTERNAL | 0x150);
+	}
 #endif /* PARANOID */
 
 }
 
-
-
 /*--- poly_cos() ------------------------------------------------------------+
  |                                                                           |
  +---------------------------------------------------------------------------*/
-void	poly_cos(FPU_REG *st0_ptr)
+void poly_cos(FPU_REG * st0_ptr)
 {
-  FPU_REG	      result;
-  long int            exponent, exp2, echange;
-  Xsig                accumulator, argSqrd, fix_up, argTo4;
-  unsigned long long  fixed_arg;
+	FPU_REG result;
+	long int exponent, exp2, echange;
+	Xsig accumulator, argSqrd, fix_up, argTo4;
+	unsigned long long fixed_arg;
 
 #ifdef PARANOID
-  if ( (exponent(st0_ptr) > 0)
-      || ((exponent(st0_ptr) == 0)
-	  && (significand(st0_ptr) > 0xc90fdaa22168c234LL)) )
-    {
-      EXCEPTION(EX_Invalid);
-      FPU_copy_to_reg0(&CONST_QNaN, TAG_Special);
-      return;
-    }
-#endif /* PARANOID */
-
-  exponent = exponent(st0_ptr);
-
-  accumulator.lsw = accumulator.midw = accumulator.msw = 0;
-
-  if ( (exponent < -1) || ((exponent == -1) && (st0_ptr->sigh <= 0xb00d6f54)) )
-    {
-      /* arg is < 0.687705 */
-
-      argSqrd.msw = st0_ptr->sigh; argSqrd.midw = st0_ptr->sigl;
-      argSqrd.lsw = 0;
-      mul64_Xsig(&argSqrd, &significand(st0_ptr));
-
-      if ( exponent < -1 )
-	{
-	  /* shift the argument right by the required places */
-	  shr_Xsig(&argSqrd, 2*(-1-exponent));
-	}
-
-      argTo4.msw = argSqrd.msw; argTo4.midw = argSqrd.midw;
-      argTo4.lsw = argSqrd.lsw;
-      mul_Xsig_Xsig(&argTo4, &argTo4);
-
-      polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), neg_terms_h,
-		      N_COEFF_NH-1);
-      mul_Xsig_Xsig(&accumulator, &argSqrd);
-      negate_Xsig(&accumulator);
-
-      polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), pos_terms_h,
-		      N_COEFF_PH-1);
-      negate_Xsig(&accumulator);
-
-      mul64_Xsig(&accumulator, &significand(st0_ptr));
-      mul64_Xsig(&accumulator, &significand(st0_ptr));
-      shr_Xsig(&accumulator, -2*(1+exponent));
-
-      shr_Xsig(&accumulator, 3);
-      negate_Xsig(&accumulator);
-
-      add_Xsig_Xsig(&accumulator, &argSqrd);
-
-      shr_Xsig(&accumulator, 1);
-
-      /* It doesn't matter if accumulator is all zero here, the
-	 following code will work ok */
-      negate_Xsig(&accumulator);
-
-      if ( accumulator.lsw & 0x80000000 )
-	XSIG_LL(accumulator) ++;
-      if ( accumulator.msw == 0 )
-	{
-	  /* The result is 1.0 */
-	  FPU_copy_to_reg0(&CONST_1, TAG_Valid);
-	  return;
-	}
-      else
-	{
-	  significand(&result) = XSIG_LL(accumulator);
-      
-	  /* will be a valid positive nr with expon = -1 */
-	  setexponentpos(&result, -1);
-	}
-    }
-  else
-    {
-      fixed_arg = significand(st0_ptr);
-
-      if ( exponent == 0 )
-	{
-	  /* The argument is >= 1.0 */
-
-	  /* Put the binary point at the left. */
-	  fixed_arg <<= 1;
-	}
-      /* pi/2 in hex is: 1.921fb54442d18469 898CC51701B839A2 52049C1 */
-      fixed_arg = 0x921fb54442d18469LL - fixed_arg;
-      /* There is a special case which arises due to rounding, to fix here. */
-      if ( fixed_arg == 0xffffffffffffffffLL )
-	fixed_arg = 0;
-
-      exponent = -1;
-      exp2 = -1;
-
-      /* A shift is needed here only for a narrow range of arguments,
-	 i.e. for fixed_arg approx 2^-32, but we pick up more... */
-      if ( !(LL_MSW(fixed_arg) & 0xffff0000) )
-	{
-	  fixed_arg <<= 16;
-	  exponent -= 16;
-	  exp2 -= 16;
+	if ((exponent(st0_ptr) > 0)
+	    || ((exponent(st0_ptr) == 0)
+		&& (significand(st0_ptr) > 0xc90fdaa22168c234LL))) {
+		EXCEPTION(EX_Invalid);
+		FPU_copy_to_reg0(&CONST_QNaN, TAG_Special);
+		return;
 	}
+#endif /* PARANOID */
 
-      XSIG_LL(argSqrd) = fixed_arg; argSqrd.lsw = 0;
-      mul64_Xsig(&argSqrd, &fixed_arg);
-
-      if ( exponent < -1 )
-	{
-	  /* shift the argument right by the required places */
-	  shr_Xsig(&argSqrd, 2*(-1-exponent));
-	}
-
-      argTo4.msw = argSqrd.msw; argTo4.midw = argSqrd.midw;
-      argTo4.lsw = argSqrd.lsw;
-      mul_Xsig_Xsig(&argTo4, &argTo4);
-
-      polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), neg_terms_l,
-		      N_COEFF_N-1);
-      mul_Xsig_Xsig(&accumulator, &argSqrd);
-      negate_Xsig(&accumulator);
-
-      polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), pos_terms_l,
-		      N_COEFF_P-1);
-
-      shr_Xsig(&accumulator, 2);    /* Divide by four */
-      accumulator.msw |= 0x80000000;  /* Add 1.0 */
-
-      mul64_Xsig(&accumulator, &fixed_arg);
-      mul64_Xsig(&accumulator, &fixed_arg);
-      mul64_Xsig(&accumulator, &fixed_arg);
-
-      /* Divide by four, FPU_REG compatible, etc */
-      exponent = 3*exponent;
-
-      /* The minimum exponent difference is 3 */
-      shr_Xsig(&accumulator, exp2 - exponent);
-
-      negate_Xsig(&accumulator);
-      XSIG_LL(accumulator) += fixed_arg;
-
-      /* The basic computation is complete. Now fix the answer to
-	 compensate for the error due to the approximation used for
-	 pi/2
-	 */
-
-      /* This has an exponent of -65 */
-      XSIG_LL(fix_up) = 0x898cc51701b839a2ll;
-      fix_up.lsw = 0;
-
-      /* The fix-up needs to be improved for larger args */
-      if ( argSqrd.msw & 0xffc00000 )
-	{
-	  /* Get about 32 bit precision in these: */
-	  fix_up.msw -= mul_32_32(0x898cc517, argSqrd.msw) / 2;
-	  fix_up.msw += mul_32_32(0x898cc517, argTo4.msw) / 24;
+	exponent = exponent(st0_ptr);
+
+	accumulator.lsw = accumulator.midw = accumulator.msw = 0;
+
+	if ((exponent < -1)
+	    || ((exponent == -1) && (st0_ptr->sigh <= 0xb00d6f54))) {
+		/* arg is < 0.687705 */
+
+		argSqrd.msw = st0_ptr->sigh;
+		argSqrd.midw = st0_ptr->sigl;
+		argSqrd.lsw = 0;
+		mul64_Xsig(&argSqrd, &significand(st0_ptr));
+
+		if (exponent < -1) {
+			/* shift the argument right by the required places */
+			shr_Xsig(&argSqrd, 2 * (-1 - exponent));
+		}
+
+		argTo4.msw = argSqrd.msw;
+		argTo4.midw = argSqrd.midw;
+		argTo4.lsw = argSqrd.lsw;
+		mul_Xsig_Xsig(&argTo4, &argTo4);
+
+		polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), neg_terms_h,
+				N_COEFF_NH - 1);
+		mul_Xsig_Xsig(&accumulator, &argSqrd);
+		negate_Xsig(&accumulator);
+
+		polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), pos_terms_h,
+				N_COEFF_PH - 1);
+		negate_Xsig(&accumulator);
+
+		mul64_Xsig(&accumulator, &significand(st0_ptr));
+		mul64_Xsig(&accumulator, &significand(st0_ptr));
+		shr_Xsig(&accumulator, -2 * (1 + exponent));
+
+		shr_Xsig(&accumulator, 3);
+		negate_Xsig(&accumulator);
+
+		add_Xsig_Xsig(&accumulator, &argSqrd);
+
+		shr_Xsig(&accumulator, 1);
+
+		/* It doesn't matter if accumulator is all zero here, the
+		   following code will work ok */
+		negate_Xsig(&accumulator);
+
+		if (accumulator.lsw & 0x80000000)
+			XSIG_LL(accumulator)++;
+		if (accumulator.msw == 0) {
+			/* The result is 1.0 */
+			FPU_copy_to_reg0(&CONST_1, TAG_Valid);
+			return;
+		} else {
+			significand(&result) = XSIG_LL(accumulator);
+
+			/* will be a valid positive nr with expon = -1 */
+			setexponentpos(&result, -1);
+		}
+	} else {
+		fixed_arg = significand(st0_ptr);
+
+		if (exponent == 0) {
+			/* The argument is >= 1.0 */
+
+			/* Put the binary point at the left. */
+			fixed_arg <<= 1;
+		}
+		/* pi/2 in hex is: 1.921fb54442d18469 898CC51701B839A2 52049C1 */
+		fixed_arg = 0x921fb54442d18469LL - fixed_arg;
+		/* There is a special case which arises due to rounding, to fix here. */
+		if (fixed_arg == 0xffffffffffffffffLL)
+			fixed_arg = 0;
+
+		exponent = -1;
+		exp2 = -1;
+
+		/* A shift is needed here only for a narrow range of arguments,
+		   i.e. for fixed_arg approx 2^-32, but we pick up more... */
+		if (!(LL_MSW(fixed_arg) & 0xffff0000)) {
+			fixed_arg <<= 16;
+			exponent -= 16;
+			exp2 -= 16;
+		}
+
+		XSIG_LL(argSqrd) = fixed_arg;
+		argSqrd.lsw = 0;
+		mul64_Xsig(&argSqrd, &fixed_arg);
+
+		if (exponent < -1) {
+			/* shift the argument right by the required places */
+			shr_Xsig(&argSqrd, 2 * (-1 - exponent));
+		}
+
+		argTo4.msw = argSqrd.msw;
+		argTo4.midw = argSqrd.midw;
+		argTo4.lsw = argSqrd.lsw;
+		mul_Xsig_Xsig(&argTo4, &argTo4);
+
+		polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), neg_terms_l,
+				N_COEFF_N - 1);
+		mul_Xsig_Xsig(&accumulator, &argSqrd);
+		negate_Xsig(&accumulator);
+
+		polynomial_Xsig(&accumulator, &XSIG_LL(argTo4), pos_terms_l,
+				N_COEFF_P - 1);
+
+		shr_Xsig(&accumulator, 2);	/* Divide by four */
+		accumulator.msw |= 0x80000000;	/* Add 1.0 */
+
+		mul64_Xsig(&accumulator, &fixed_arg);
+		mul64_Xsig(&accumulator, &fixed_arg);
+		mul64_Xsig(&accumulator, &fixed_arg);
+
+		/* Divide by four, FPU_REG compatible, etc */
+		exponent = 3 * exponent;
+
+		/* The minimum exponent difference is 3 */
+		shr_Xsig(&accumulator, exp2 - exponent);
+
+		negate_Xsig(&accumulator);
+		XSIG_LL(accumulator) += fixed_arg;
+
+		/* The basic computation is complete. Now fix the answer to
+		   compensate for the error due to the approximation used for
+		   pi/2
+		 */
+
+		/* This has an exponent of -65 */
+		XSIG_LL(fix_up) = 0x898cc51701b839a2ll;
+		fix_up.lsw = 0;
+
+		/* The fix-up needs to be improved for larger args */
+		if (argSqrd.msw & 0xffc00000) {
+			/* Get about 32 bit precision in these: */
+			fix_up.msw -= mul_32_32(0x898cc517, argSqrd.msw) / 2;
+			fix_up.msw += mul_32_32(0x898cc517, argTo4.msw) / 24;
+		}
+
+		exp2 += norm_Xsig(&accumulator);
+		shr_Xsig(&accumulator, 1);	/* Prevent overflow */
+		exp2++;
+		shr_Xsig(&fix_up, 65 + exp2);
+
+		add_Xsig_Xsig(&accumulator, &fix_up);
+
+		echange = round_Xsig(&accumulator);
+
+		setexponentpos(&result, exp2 + echange);
+		significand(&result) = XSIG_LL(accumulator);
 	}
 
-      exp2 += norm_Xsig(&accumulator);
-      shr_Xsig(&accumulator, 1); /* Prevent overflow */
-      exp2++;
-      shr_Xsig(&fix_up, 65 + exp2);
-
-      add_Xsig_Xsig(&accumulator, &fix_up);
-
-      echange = round_Xsig(&accumulator);
-
-      setexponentpos(&result, exp2 + echange);
-      significand(&result) = XSIG_LL(accumulator);
-    }
-
-  FPU_copy_to_reg0(&result, TAG_Valid);
+	FPU_copy_to_reg0(&result, TAG_Valid);
 
 #ifdef PARANOID
-  if ( (exponent(&result) >= 0)
-      && (significand(&result) > 0x8000000000000000LL) )
-    {
-      EXCEPTION(EX_INTERNAL|0x151);
-    }
+	if ((exponent(&result) >= 0)
+	    && (significand(&result) > 0x8000000000000000LL)) {
+		EXCEPTION(EX_INTERNAL | 0x151);
+	}
 #endif /* PARANOID */
 
 }
diff --git a/arch/x86/math-emu/poly_tan.c b/arch/x86/math-emu/poly_tan.c
index 8df3e03b6e6f..c0d181e39229 100644
--- a/arch/x86/math-emu/poly_tan.c
+++ b/arch/x86/math-emu/poly_tan.c
@@ -17,206 +17,196 @@
 #include "control_w.h"
 #include "poly.h"
 
-
 #define	HiPOWERop	3	/* odd poly, positive terms */
-static const unsigned long long oddplterm[HiPOWERop] =
-{
-  0x0000000000000000LL,
-  0x0051a1cf08fca228LL,
-  0x0000000071284ff7LL
+static const unsigned long long oddplterm[HiPOWERop] = {
+	0x0000000000000000LL,
+	0x0051a1cf08fca228LL,
+	0x0000000071284ff7LL
 };
 
 #define	HiPOWERon	2	/* odd poly, negative terms */
-static const unsigned long long oddnegterm[HiPOWERon] =
-{
-   0x1291a9a184244e80LL,
-   0x0000583245819c21LL
+static const unsigned long long oddnegterm[HiPOWERon] = {
+	0x1291a9a184244e80LL,
+	0x0000583245819c21LL
 };
 
 #define	HiPOWERep	2	/* even poly, positive terms */
-static const unsigned long long evenplterm[HiPOWERep] =
-{
-  0x0e848884b539e888LL,
-  0x00003c7f18b887daLL
+static const unsigned long long evenplterm[HiPOWERep] = {
+	0x0e848884b539e888LL,
+	0x00003c7f18b887daLL
 };
 
 #define	HiPOWERen	2	/* even poly, negative terms */
-static const unsigned long long evennegterm[HiPOWERen] =
-{
-  0xf1f0200fd51569ccLL,
-  0x003afb46105c4432LL
+static const unsigned long long evennegterm[HiPOWERen] = {
+	0xf1f0200fd51569ccLL,
+	0x003afb46105c4432LL
 };
 
 static const unsigned long long twothirds = 0xaaaaaaaaaaaaaaabLL;
 
-
 /*--- poly_tan() ------------------------------------------------------------+
  |                                                                           |
  +---------------------------------------------------------------------------*/
-void	poly_tan(FPU_REG *st0_ptr)
+void poly_tan(FPU_REG * st0_ptr)
 {
-  long int    		exponent;
-  int                   invert;
-  Xsig                  argSq, argSqSq, accumulatoro, accumulatore, accum,
-                        argSignif, fix_up;
-  unsigned long         adj;
+	long int exponent;
+	int invert;
+	Xsig argSq, argSqSq, accumulatoro, accumulatore, accum,
+	    argSignif, fix_up;
+	unsigned long adj;
 
-  exponent = exponent(st0_ptr);
+	exponent = exponent(st0_ptr);
 
 #ifdef PARANOID
-  if ( signnegative(st0_ptr) )	/* Can't hack a number < 0.0 */
-    { arith_invalid(0); return; }  /* Need a positive number */
+	if (signnegative(st0_ptr)) {	/* Can't hack a number < 0.0 */
+		arith_invalid(0);
+		return;
+	}			/* Need a positive number */
 #endif /* PARANOID */
 
-  /* Split the problem into two domains, smaller and larger than pi/4 */
-  if ( (exponent == 0) || ((exponent == -1) && (st0_ptr->sigh > 0xc90fdaa2)) )
-    {
-      /* The argument is greater than (approx) pi/4 */
-      invert = 1;
-      accum.lsw = 0;
-      XSIG_LL(accum) = significand(st0_ptr);
- 
-      if ( exponent == 0 )
-	{
-	  /* The argument is >= 1.0 */
-	  /* Put the binary point at the left. */
-	  XSIG_LL(accum) <<= 1;
-	}
-      /* pi/2 in hex is: 1.921fb54442d18469 898CC51701B839A2 52049C1 */
-      XSIG_LL(accum) = 0x921fb54442d18469LL - XSIG_LL(accum);
-      /* This is a special case which arises due to rounding. */
-      if ( XSIG_LL(accum) == 0xffffffffffffffffLL )
-	{
-	  FPU_settag0(TAG_Valid);
-	  significand(st0_ptr) = 0x8a51e04daabda360LL;
-	  setexponent16(st0_ptr, (0x41 + EXTENDED_Ebias) | SIGN_Negative);
-	  return;
+	/* Split the problem into two domains, smaller and larger than pi/4 */
+	if ((exponent == 0)
+	    || ((exponent == -1) && (st0_ptr->sigh > 0xc90fdaa2))) {
+		/* The argument is greater than (approx) pi/4 */
+		invert = 1;
+		accum.lsw = 0;
+		XSIG_LL(accum) = significand(st0_ptr);
+
+		if (exponent == 0) {
+			/* The argument is >= 1.0 */
+			/* Put the binary point at the left. */
+			XSIG_LL(accum) <<= 1;
+		}
+		/* pi/2 in hex is: 1.921fb54442d18469 898CC51701B839A2 52049C1 */
+		XSIG_LL(accum) = 0x921fb54442d18469LL - XSIG_LL(accum);
+		/* This is a special case which arises due to rounding. */
+		if (XSIG_LL(accum) == 0xffffffffffffffffLL) {
+			FPU_settag0(TAG_Valid);
+			significand(st0_ptr) = 0x8a51e04daabda360LL;
+			setexponent16(st0_ptr,
+				      (0x41 + EXTENDED_Ebias) | SIGN_Negative);
+			return;
+		}
+
+		argSignif.lsw = accum.lsw;
+		XSIG_LL(argSignif) = XSIG_LL(accum);
+		exponent = -1 + norm_Xsig(&argSignif);
+	} else {
+		invert = 0;
+		argSignif.lsw = 0;
+		XSIG_LL(accum) = XSIG_LL(argSignif) = significand(st0_ptr);
+
+		if (exponent < -1) {
+			/* shift the argument right by the required places */
+			if (FPU_shrx(&XSIG_LL(accum), -1 - exponent) >=
+			    0x80000000U)
+				XSIG_LL(accum)++;	/* round up */
+		}
 	}
 
-      argSignif.lsw = accum.lsw;
-      XSIG_LL(argSignif) = XSIG_LL(accum);
-      exponent = -1 + norm_Xsig(&argSignif);
-    }
-  else
-    {
-      invert = 0;
-      argSignif.lsw = 0;
-      XSIG_LL(accum) = XSIG_LL(argSignif) = significand(st0_ptr);
- 
-      if ( exponent < -1 )
-	{
-	  /* shift the argument right by the required places */
-	  if ( FPU_shrx(&XSIG_LL(accum), -1-exponent) >= 0x80000000U )
-	    XSIG_LL(accum) ++;	/* round up */
-	}
-    }
-
-  XSIG_LL(argSq) = XSIG_LL(accum); argSq.lsw = accum.lsw;
-  mul_Xsig_Xsig(&argSq, &argSq);
-  XSIG_LL(argSqSq) = XSIG_LL(argSq); argSqSq.lsw = argSq.lsw;
-  mul_Xsig_Xsig(&argSqSq, &argSqSq);
-
-  /* Compute the negative terms for the numerator polynomial */
-  accumulatoro.msw = accumulatoro.midw = accumulatoro.lsw = 0;
-  polynomial_Xsig(&accumulatoro, &XSIG_LL(argSqSq), oddnegterm, HiPOWERon-1);
-  mul_Xsig_Xsig(&accumulatoro, &argSq);
-  negate_Xsig(&accumulatoro);
-  /* Add the positive terms */
-  polynomial_Xsig(&accumulatoro, &XSIG_LL(argSqSq), oddplterm, HiPOWERop-1);
-
-  
-  /* Compute the positive terms for the denominator polynomial */
-  accumulatore.msw = accumulatore.midw = accumulatore.lsw = 0;
-  polynomial_Xsig(&accumulatore, &XSIG_LL(argSqSq), evenplterm, HiPOWERep-1);
-  mul_Xsig_Xsig(&accumulatore, &argSq);
-  negate_Xsig(&accumulatore);
-  /* Add the negative terms */
-  polynomial_Xsig(&accumulatore, &XSIG_LL(argSqSq), evennegterm, HiPOWERen-1);
-  /* Multiply by arg^2 */
-  mul64_Xsig(&accumulatore, &XSIG_LL(argSignif));
-  mul64_Xsig(&accumulatore, &XSIG_LL(argSignif));
-  /* de-normalize and divide by 2 */
-  shr_Xsig(&accumulatore, -2*(1+exponent) + 1);
-  negate_Xsig(&accumulatore);      /* This does 1 - accumulator */
-
-  /* Now find the ratio. */
-  if ( accumulatore.msw == 0 )
-    {
-      /* accumulatoro must contain 1.0 here, (actually, 0) but it
-	 really doesn't matter what value we use because it will
-	 have negligible effect in later calculations
-	 */
-      XSIG_LL(accum) = 0x8000000000000000LL;
-      accum.lsw = 0;
-    }
-  else
-    {
-      div_Xsig(&accumulatoro, &accumulatore, &accum);
-    }
-
-  /* Multiply by 1/3 * arg^3 */
-  mul64_Xsig(&accum, &XSIG_LL(argSignif));
-  mul64_Xsig(&accum, &XSIG_LL(argSignif));
-  mul64_Xsig(&accum, &XSIG_LL(argSignif));
-  mul64_Xsig(&accum, &twothirds);
-  shr_Xsig(&accum, -2*(exponent+1));
-
-  /* tan(arg) = arg + accum */
-  add_two_Xsig(&accum, &argSignif, &exponent);
-
-  if ( invert )
-    {
-      /* We now have the value of tan(pi_2 - arg) where pi_2 is an
-	 approximation for pi/2
-	 */
-      /* The next step is to fix the answer to compensate for the
-	 error due to the approximation used for pi/2
-	 */
-
-      /* This is (approx) delta, the error in our approx for pi/2
-	 (see above). It has an exponent of -65
-	 */
-      XSIG_LL(fix_up) = 0x898cc51701b839a2LL;
-      fix_up.lsw = 0;
-
-      if ( exponent == 0 )
-	adj = 0xffffffff;   /* We want approx 1.0 here, but
-			       this is close enough. */
-      else if ( exponent > -30 )
-	{
-	  adj = accum.msw >> -(exponent+1);      /* tan */
-	  adj = mul_32_32(adj, adj);             /* tan^2 */
+	XSIG_LL(argSq) = XSIG_LL(accum);
+	argSq.lsw = accum.lsw;
+	mul_Xsig_Xsig(&argSq, &argSq);
+	XSIG_LL(argSqSq) = XSIG_LL(argSq);
+	argSqSq.lsw = argSq.lsw;
+	mul_Xsig_Xsig(&argSqSq, &argSqSq);
+
+	/* Compute the negative terms for the numerator polynomial */
+	accumulatoro.msw = accumulatoro.midw = accumulatoro.lsw = 0;
+	polynomial_Xsig(&accumulatoro, &XSIG_LL(argSqSq), oddnegterm,
+			HiPOWERon - 1);
+	mul_Xsig_Xsig(&accumulatoro, &argSq);
+	negate_Xsig(&accumulatoro);
+	/* Add the positive terms */
+	polynomial_Xsig(&accumulatoro, &XSIG_LL(argSqSq), oddplterm,
+			HiPOWERop - 1);
+
+	/* Compute the positive terms for the denominator polynomial */
+	accumulatore.msw = accumulatore.midw = accumulatore.lsw = 0;
+	polynomial_Xsig(&accumulatore, &XSIG_LL(argSqSq), evenplterm,
+			HiPOWERep - 1);
+	mul_Xsig_Xsig(&accumulatore, &argSq);
+	negate_Xsig(&accumulatore);
+	/* Add the negative terms */
+	polynomial_Xsig(&accumulatore, &XSIG_LL(argSqSq), evennegterm,
+			HiPOWERen - 1);
+	/* Multiply by arg^2 */
+	mul64_Xsig(&accumulatore, &XSIG_LL(argSignif));
+	mul64_Xsig(&accumulatore, &XSIG_LL(argSignif));
+	/* de-normalize and divide by 2 */
+	shr_Xsig(&accumulatore, -2 * (1 + exponent) + 1);
+	negate_Xsig(&accumulatore);	/* This does 1 - accumulator */
+
+	/* Now find the ratio. */
+	if (accumulatore.msw == 0) {
+		/* accumulatoro must contain 1.0 here, (actually, 0) but it
+		   really doesn't matter what value we use because it will
+		   have negligible effect in later calculations
+		 */
+		XSIG_LL(accum) = 0x8000000000000000LL;
+		accum.lsw = 0;
+	} else {
+		div_Xsig(&accumulatoro, &accumulatore, &accum);
 	}
-      else
-	adj = 0;
-      adj = mul_32_32(0x898cc517, adj);          /* delta * tan^2 */
-
-      fix_up.msw += adj;
-      if ( !(fix_up.msw & 0x80000000) )   /* did fix_up overflow ? */
-	{
-	  /* Yes, we need to add an msb */
-	  shr_Xsig(&fix_up, 1);
-	  fix_up.msw |= 0x80000000;
-	  shr_Xsig(&fix_up, 64 + exponent);
+
+	/* Multiply by 1/3 * arg^3 */
+	mul64_Xsig(&accum, &XSIG_LL(argSignif));
+	mul64_Xsig(&accum, &XSIG_LL(argSignif));
+	mul64_Xsig(&accum, &XSIG_LL(argSignif));
+	mul64_Xsig(&accum, &twothirds);
+	shr_Xsig(&accum, -2 * (exponent + 1));
+
+	/* tan(arg) = arg + accum */
+	add_two_Xsig(&accum, &argSignif, &exponent);
+
+	if (invert) {
+		/* We now have the value of tan(pi_2 - arg) where pi_2 is an
+		   approximation for pi/2
+		 */
+		/* The next step is to fix the answer to compensate for the
+		   error due to the approximation used for pi/2
+		 */
+
+		/* This is (approx) delta, the error in our approx for pi/2
+		   (see above). It has an exponent of -65
+		 */
+		XSIG_LL(fix_up) = 0x898cc51701b839a2LL;
+		fix_up.lsw = 0;
+
+		if (exponent == 0)
+			adj = 0xffffffff;	/* We want approx 1.0 here, but
+						   this is close enough. */
+		else if (exponent > -30) {
+			adj = accum.msw >> -(exponent + 1);	/* tan */
+			adj = mul_32_32(adj, adj);	/* tan^2 */
+		} else
+			adj = 0;
+		adj = mul_32_32(0x898cc517, adj);	/* delta * tan^2 */
+
+		fix_up.msw += adj;
+		if (!(fix_up.msw & 0x80000000)) {	/* did fix_up overflow ? */
+			/* Yes, we need to add an msb */
+			shr_Xsig(&fix_up, 1);
+			fix_up.msw |= 0x80000000;
+			shr_Xsig(&fix_up, 64 + exponent);
+		} else
+			shr_Xsig(&fix_up, 65 + exponent);
+
+		add_two_Xsig(&accum, &fix_up, &exponent);
+
+		/* accum now contains tan(pi/2 - arg).
+		   Use tan(arg) = 1.0 / tan(pi/2 - arg)
+		 */
+		accumulatoro.lsw = accumulatoro.midw = 0;
+		accumulatoro.msw = 0x80000000;
+		div_Xsig(&accumulatoro, &accum, &accum);
+		exponent = -exponent - 1;
 	}
-      else
-	shr_Xsig(&fix_up, 65 + exponent);
-
-      add_two_Xsig(&accum, &fix_up, &exponent);
-
-      /* accum now contains tan(pi/2 - arg).
-	 Use tan(arg) = 1.0 / tan(pi/2 - arg)
-	 */
-      accumulatoro.lsw = accumulatoro.midw = 0;
-      accumulatoro.msw = 0x80000000;
-      div_Xsig(&accumulatoro, &accum, &accum);
-      exponent = - exponent - 1;
-    }
-
-  /* Transfer the result */
-  round_Xsig(&accum);
-  FPU_settag0(TAG_Valid);
-  significand(st0_ptr) = XSIG_LL(accum);
-  setexponent16(st0_ptr, exponent + EXTENDED_Ebias);  /* Result is positive. */
+
+	/* Transfer the result */
+	round_Xsig(&accum);
+	FPU_settag0(TAG_Valid);
+	significand(st0_ptr) = XSIG_LL(accum);
+	setexponent16(st0_ptr, exponent + EXTENDED_Ebias);	/* Result is positive. */
 
 }
diff --git a/arch/x86/math-emu/reg_add_sub.c b/arch/x86/math-emu/reg_add_sub.c
index 7cd3b37ac084..deea48b9f13a 100644
--- a/arch/x86/math-emu/reg_add_sub.c
+++ b/arch/x86/math-emu/reg_add_sub.c
@@ -27,7 +27,7 @@
 static
 int add_sub_specials(FPU_REG const *a, u_char taga, u_char signa,
 		     FPU_REG const *b, u_char tagb, u_char signb,
-		     FPU_REG *dest, int deststnr, int control_w);
+		     FPU_REG * dest, int deststnr, int control_w);
 
 /*
   Operates on st(0) and st(n), or on st(0) and temporary data.
@@ -35,340 +35,299 @@ int add_sub_specials(FPU_REG const *a, u_char taga, u_char signa,
   */
 int FPU_add(FPU_REG const *b, u_char tagb, int deststnr, int control_w)
 {
-  FPU_REG *a = &st(0);
-  FPU_REG *dest = &st(deststnr);
-  u_char signb = getsign(b);
-  u_char taga = FPU_gettag0();
-  u_char signa = getsign(a);
-  u_char saved_sign = getsign(dest);
-  int diff, tag, expa, expb;
-  
-  if ( !(taga | tagb) )
-    {
-      expa = exponent(a);
-      expb = exponent(b);
-
-    valid_add:
-      /* Both registers are valid */
-      if (!(signa ^ signb))
-	{
-	  /* signs are the same */
-	  tag = FPU_u_add(a, b, dest, control_w, signa, expa, expb);
-	}
-      else
-	{
-	  /* The signs are different, so do a subtraction */
-	  diff = expa - expb;
-	  if (!diff)
-	    {
-	      diff = a->sigh - b->sigh;  /* This works only if the ms bits
-					    are identical. */
-	      if (!diff)
-		{
-		  diff = a->sigl > b->sigl;
-		  if (!diff)
-		    diff = -(a->sigl < b->sigl);
+	FPU_REG *a = &st(0);
+	FPU_REG *dest = &st(deststnr);
+	u_char signb = getsign(b);
+	u_char taga = FPU_gettag0();
+	u_char signa = getsign(a);
+	u_char saved_sign = getsign(dest);
+	int diff, tag, expa, expb;
+
+	if (!(taga | tagb)) {
+		expa = exponent(a);
+		expb = exponent(b);
+
+	      valid_add:
+		/* Both registers are valid */
+		if (!(signa ^ signb)) {
+			/* signs are the same */
+			tag =
+			    FPU_u_add(a, b, dest, control_w, signa, expa, expb);
+		} else {
+			/* The signs are different, so do a subtraction */
+			diff = expa - expb;
+			if (!diff) {
+				diff = a->sigh - b->sigh;	/* This works only if the ms bits
+								   are identical. */
+				if (!diff) {
+					diff = a->sigl > b->sigl;
+					if (!diff)
+						diff = -(a->sigl < b->sigl);
+				}
+			}
+
+			if (diff > 0) {
+				tag =
+				    FPU_u_sub(a, b, dest, control_w, signa,
+					      expa, expb);
+			} else if (diff < 0) {
+				tag =
+				    FPU_u_sub(b, a, dest, control_w, signb,
+					      expb, expa);
+			} else {
+				FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
+				/* sign depends upon rounding mode */
+				setsign(dest, ((control_w & CW_RC) != RC_DOWN)
+					? SIGN_POS : SIGN_NEG);
+				return TAG_Zero;
+			}
 		}
-	    }
-      
-	  if (diff > 0)
-	    {
-	      tag = FPU_u_sub(a, b, dest, control_w, signa, expa, expb);
-	    }
-	  else if ( diff < 0 )
-	    {
-	      tag = FPU_u_sub(b, a, dest, control_w, signb, expb, expa);
-	    }
-	  else
-	    {
-	      FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
-	      /* sign depends upon rounding mode */
-	      setsign(dest, ((control_w & CW_RC) != RC_DOWN)
-		      ? SIGN_POS : SIGN_NEG);
-	      return TAG_Zero;
-	    }
-	}
 
-      if ( tag < 0 )
-	{
-	  setsign(dest, saved_sign);
-	  return tag;
+		if (tag < 0) {
+			setsign(dest, saved_sign);
+			return tag;
+		}
+		FPU_settagi(deststnr, tag);
+		return tag;
 	}
-      FPU_settagi(deststnr, tag);
-      return tag;
-    }
 
-  if ( taga == TAG_Special )
-    taga = FPU_Special(a);
-  if ( tagb == TAG_Special )
-    tagb = FPU_Special(b);
+	if (taga == TAG_Special)
+		taga = FPU_Special(a);
+	if (tagb == TAG_Special)
+		tagb = FPU_Special(b);
 
-  if ( ((taga == TAG_Valid) && (tagb == TW_Denormal))
+	if (((taga == TAG_Valid) && (tagb == TW_Denormal))
 	    || ((taga == TW_Denormal) && (tagb == TAG_Valid))
-	    || ((taga == TW_Denormal) && (tagb == TW_Denormal)) )
-    {
-      FPU_REG x, y;
+	    || ((taga == TW_Denormal) && (tagb == TW_Denormal))) {
+		FPU_REG x, y;
+
+		if (denormal_operand() < 0)
+			return FPU_Exception;
+
+		FPU_to_exp16(a, &x);
+		FPU_to_exp16(b, &y);
+		a = &x;
+		b = &y;
+		expa = exponent16(a);
+		expb = exponent16(b);
+		goto valid_add;
+	}
 
-      if ( denormal_operand() < 0 )
-	return FPU_Exception;
+	if ((taga == TW_NaN) || (tagb == TW_NaN)) {
+		if (deststnr == 0)
+			return real_2op_NaN(b, tagb, deststnr, a);
+		else
+			return real_2op_NaN(a, taga, deststnr, a);
+	}
 
-      FPU_to_exp16(a, &x);
-      FPU_to_exp16(b, &y);
-      a = &x;
-      b = &y;
-      expa = exponent16(a);
-      expb = exponent16(b);
-      goto valid_add;
-    }
-
-  if ( (taga == TW_NaN) || (tagb == TW_NaN) )
-    {
-      if ( deststnr == 0 )
-	return real_2op_NaN(b, tagb, deststnr, a);
-      else
-	return real_2op_NaN(a, taga, deststnr, a);
-    }
-
-  return add_sub_specials(a, taga, signa, b, tagb, signb,
-			  dest, deststnr, control_w);
+	return add_sub_specials(a, taga, signa, b, tagb, signb,
+				dest, deststnr, control_w);
 }
 
-
 /* Subtract b from a.  (a-b) -> dest */
 int FPU_sub(int flags, int rm, int control_w)
 {
-  FPU_REG const *a, *b;
-  FPU_REG *dest;
-  u_char taga, tagb, signa, signb, saved_sign, sign;
-  int diff, tag = 0, expa, expb, deststnr;
-
-  a = &st(0);
-  taga = FPU_gettag0();
-
-  deststnr = 0;
-  if ( flags & LOADED )
-    {
-      b = (FPU_REG *)rm;
-      tagb = flags & 0x0f;
-    }
-  else
-    {
-      b = &st(rm);
-      tagb = FPU_gettagi(rm);
-
-      if ( flags & DEST_RM )
-	deststnr = rm;
-    }
-
-  signa = getsign(a);
-  signb = getsign(b);
-
-  if ( flags & REV )
-    {
-      signa ^= SIGN_NEG;
-      signb ^= SIGN_NEG;
-    }
-
-  dest = &st(deststnr);
-  saved_sign = getsign(dest);
-
-  if ( !(taga | tagb) )
-    {
-      expa = exponent(a);
-      expb = exponent(b);
-
-    valid_subtract:
-      /* Both registers are valid */
-
-      diff = expa - expb;
-
-      if (!diff)
-	{
-	  diff = a->sigh - b->sigh;  /* Works only if ms bits are identical */
-	  if (!diff)
-	    {
-	      diff = a->sigl > b->sigl;
-	      if (!diff)
-		diff = -(a->sigl < b->sigl);
-	    }
+	FPU_REG const *a, *b;
+	FPU_REG *dest;
+	u_char taga, tagb, signa, signb, saved_sign, sign;
+	int diff, tag = 0, expa, expb, deststnr;
+
+	a = &st(0);
+	taga = FPU_gettag0();
+
+	deststnr = 0;
+	if (flags & LOADED) {
+		b = (FPU_REG *) rm;
+		tagb = flags & 0x0f;
+	} else {
+		b = &st(rm);
+		tagb = FPU_gettagi(rm);
+
+		if (flags & DEST_RM)
+			deststnr = rm;
 	}
 
-      switch ( (((int)signa)*2 + signb) / SIGN_NEG )
-	{
-	case 0: /* P - P */
-	case 3: /* N - N */
-	  if (diff > 0)
-	    {
-	      /* |a| > |b| */
-	      tag = FPU_u_sub(a, b, dest, control_w, signa, expa, expb);
-	    }
-	  else if ( diff == 0 )
-	    {
-	      FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
-
-	      /* sign depends upon rounding mode */
-	      setsign(dest, ((control_w & CW_RC) != RC_DOWN)
-		? SIGN_POS : SIGN_NEG);
-	      return TAG_Zero;
-	    }
-	  else
-	    {
-	      sign = signa ^ SIGN_NEG;
-	      tag = FPU_u_sub(b, a, dest, control_w, sign, expb, expa);
-	    }
-	  break;
-	case 1: /* P - N */
-	  tag = FPU_u_add(a, b, dest, control_w, SIGN_POS, expa, expb);
-	  break;
-	case 2: /* N - P */
-	  tag = FPU_u_add(a, b, dest, control_w, SIGN_NEG, expa, expb);
-	  break;
+	signa = getsign(a);
+	signb = getsign(b);
+
+	if (flags & REV) {
+		signa ^= SIGN_NEG;
+		signb ^= SIGN_NEG;
+	}
+
+	dest = &st(deststnr);
+	saved_sign = getsign(dest);
+
+	if (!(taga | tagb)) {
+		expa = exponent(a);
+		expb = exponent(b);
+
+	      valid_subtract:
+		/* Both registers are valid */
+
+		diff = expa - expb;
+
+		if (!diff) {
+			diff = a->sigh - b->sigh;	/* Works only if ms bits are identical */
+			if (!diff) {
+				diff = a->sigl > b->sigl;
+				if (!diff)
+					diff = -(a->sigl < b->sigl);
+			}
+		}
+
+		switch ((((int)signa) * 2 + signb) / SIGN_NEG) {
+		case 0:	/* P - P */
+		case 3:	/* N - N */
+			if (diff > 0) {
+				/* |a| > |b| */
+				tag =
+				    FPU_u_sub(a, b, dest, control_w, signa,
+					      expa, expb);
+			} else if (diff == 0) {
+				FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
+
+				/* sign depends upon rounding mode */
+				setsign(dest, ((control_w & CW_RC) != RC_DOWN)
+					? SIGN_POS : SIGN_NEG);
+				return TAG_Zero;
+			} else {
+				sign = signa ^ SIGN_NEG;
+				tag =
+				    FPU_u_sub(b, a, dest, control_w, sign, expb,
+					      expa);
+			}
+			break;
+		case 1:	/* P - N */
+			tag =
+			    FPU_u_add(a, b, dest, control_w, SIGN_POS, expa,
+				      expb);
+			break;
+		case 2:	/* N - P */
+			tag =
+			    FPU_u_add(a, b, dest, control_w, SIGN_NEG, expa,
+				      expb);
+			break;
 #ifdef PARANOID
-	default:
-	  EXCEPTION(EX_INTERNAL|0x111);
-	  return -1;
+		default:
+			EXCEPTION(EX_INTERNAL | 0x111);
+			return -1;
 #endif
+		}
+		if (tag < 0) {
+			setsign(dest, saved_sign);
+			return tag;
+		}
+		FPU_settagi(deststnr, tag);
+		return tag;
 	}
-      if ( tag < 0 )
-	{
-	  setsign(dest, saved_sign);
-	  return tag;
-	}
-      FPU_settagi(deststnr, tag);
-      return tag;
-    }
 
-  if ( taga == TAG_Special )
-    taga = FPU_Special(a);
-  if ( tagb == TAG_Special )
-    tagb = FPU_Special(b);
+	if (taga == TAG_Special)
+		taga = FPU_Special(a);
+	if (tagb == TAG_Special)
+		tagb = FPU_Special(b);
 
-  if ( ((taga == TAG_Valid) && (tagb == TW_Denormal))
+	if (((taga == TAG_Valid) && (tagb == TW_Denormal))
 	    || ((taga == TW_Denormal) && (tagb == TAG_Valid))
-	    || ((taga == TW_Denormal) && (tagb == TW_Denormal)) )
-    {
-      FPU_REG x, y;
+	    || ((taga == TW_Denormal) && (tagb == TW_Denormal))) {
+		FPU_REG x, y;
 
-      if ( denormal_operand() < 0 )
-	return FPU_Exception;
+		if (denormal_operand() < 0)
+			return FPU_Exception;
+
+		FPU_to_exp16(a, &x);
+		FPU_to_exp16(b, &y);
+		a = &x;
+		b = &y;
+		expa = exponent16(a);
+		expb = exponent16(b);
 
-      FPU_to_exp16(a, &x);
-      FPU_to_exp16(b, &y);
-      a = &x;
-      b = &y;
-      expa = exponent16(a);
-      expb = exponent16(b);
-
-      goto valid_subtract;
-    }
-
-  if ( (taga == TW_NaN) || (tagb == TW_NaN) )
-    {
-      FPU_REG const *d1, *d2;
-      if ( flags & REV )
-	{
-	  d1 = b;
-	  d2 = a;
+		goto valid_subtract;
 	}
-      else
-	{
-	  d1 = a;
-	  d2 = b;
+
+	if ((taga == TW_NaN) || (tagb == TW_NaN)) {
+		FPU_REG const *d1, *d2;
+		if (flags & REV) {
+			d1 = b;
+			d2 = a;
+		} else {
+			d1 = a;
+			d2 = b;
+		}
+		if (flags & LOADED)
+			return real_2op_NaN(b, tagb, deststnr, d1);
+		if (flags & DEST_RM)
+			return real_2op_NaN(a, taga, deststnr, d2);
+		else
+			return real_2op_NaN(b, tagb, deststnr, d2);
 	}
-      if ( flags & LOADED )
-	return real_2op_NaN(b, tagb, deststnr, d1);
-      if ( flags & DEST_RM )
-	return real_2op_NaN(a, taga, deststnr, d2);
-      else
-	return real_2op_NaN(b, tagb, deststnr, d2);
-    }
-
-    return add_sub_specials(a, taga, signa, b, tagb, signb ^ SIGN_NEG,
-			    dest, deststnr, control_w);
-}
 
+	return add_sub_specials(a, taga, signa, b, tagb, signb ^ SIGN_NEG,
+				dest, deststnr, control_w);
+}
 
 static
 int add_sub_specials(FPU_REG const *a, u_char taga, u_char signa,
 		     FPU_REG const *b, u_char tagb, u_char signb,
-		     FPU_REG *dest, int deststnr, int control_w)
+		     FPU_REG * dest, int deststnr, int control_w)
 {
-  if ( ((taga == TW_Denormal) || (tagb == TW_Denormal))
-       && (denormal_operand() < 0) )
-    return FPU_Exception;
-
-  if (taga == TAG_Zero)
-    {
-      if (tagb == TAG_Zero)
-	{
-	  /* Both are zero, result will be zero. */
-	  u_char different_signs = signa ^ signb;
-
-	  FPU_copy_to_regi(a, TAG_Zero, deststnr);
-	  if ( different_signs )
-	    {
-	      /* Signs are different. */
-	      /* Sign of answer depends upon rounding mode. */
-	      setsign(dest, ((control_w & CW_RC) != RC_DOWN)
-		      ? SIGN_POS : SIGN_NEG);
-	    }
-	  else
-	    setsign(dest, signa);  /* signa may differ from the sign of a. */
-	  return TAG_Zero;
-	}
-      else
-	{
-	  reg_copy(b, dest);
-	  if ( (tagb == TW_Denormal) && (b->sigh & 0x80000000) )
-	    {
-	      /* A pseudoDenormal, convert it. */
-	      addexponent(dest, 1);
-	      tagb = TAG_Valid;
-	    }
-	  else if ( tagb > TAG_Empty )
-	    tagb = TAG_Special;
-	  setsign(dest, signb);  /* signb may differ from the sign of b. */
-	  FPU_settagi(deststnr, tagb);
-	  return tagb;
-	}
-    }
-  else if (tagb == TAG_Zero)
-    {
-      reg_copy(a, dest);
-      if ( (taga == TW_Denormal) && (a->sigh & 0x80000000) )
-	{
-	  /* A pseudoDenormal */
-	  addexponent(dest, 1);
-	  taga = TAG_Valid;
-	}
-      else if ( taga > TAG_Empty )
-	taga = TAG_Special;
-      setsign(dest, signa);  /* signa may differ from the sign of a. */
-      FPU_settagi(deststnr, taga);
-      return taga;
-    }
-  else if (taga == TW_Infinity)
-    {
-      if ( (tagb != TW_Infinity) || (signa == signb) )
-	{
-	  FPU_copy_to_regi(a, TAG_Special, deststnr);
-	  setsign(dest, signa);  /* signa may differ from the sign of a. */
-	  return taga;
+	if (((taga == TW_Denormal) || (tagb == TW_Denormal))
+	    && (denormal_operand() < 0))
+		return FPU_Exception;
+
+	if (taga == TAG_Zero) {
+		if (tagb == TAG_Zero) {
+			/* Both are zero, result will be zero. */
+			u_char different_signs = signa ^ signb;
+
+			FPU_copy_to_regi(a, TAG_Zero, deststnr);
+			if (different_signs) {
+				/* Signs are different. */
+				/* Sign of answer depends upon rounding mode. */
+				setsign(dest, ((control_w & CW_RC) != RC_DOWN)
+					? SIGN_POS : SIGN_NEG);
+			} else
+				setsign(dest, signa);	/* signa may differ from the sign of a. */
+			return TAG_Zero;
+		} else {
+			reg_copy(b, dest);
+			if ((tagb == TW_Denormal) && (b->sigh & 0x80000000)) {
+				/* A pseudoDenormal, convert it. */
+				addexponent(dest, 1);
+				tagb = TAG_Valid;
+			} else if (tagb > TAG_Empty)
+				tagb = TAG_Special;
+			setsign(dest, signb);	/* signb may differ from the sign of b. */
+			FPU_settagi(deststnr, tagb);
+			return tagb;
+		}
+	} else if (tagb == TAG_Zero) {
+		reg_copy(a, dest);
+		if ((taga == TW_Denormal) && (a->sigh & 0x80000000)) {
+			/* A pseudoDenormal */
+			addexponent(dest, 1);
+			taga = TAG_Valid;
+		} else if (taga > TAG_Empty)
+			taga = TAG_Special;
+		setsign(dest, signa);	/* signa may differ from the sign of a. */
+		FPU_settagi(deststnr, taga);
+		return taga;
+	} else if (taga == TW_Infinity) {
+		if ((tagb != TW_Infinity) || (signa == signb)) {
+			FPU_copy_to_regi(a, TAG_Special, deststnr);
+			setsign(dest, signa);	/* signa may differ from the sign of a. */
+			return taga;
+		}
+		/* Infinity-Infinity is undefined. */
+		return arith_invalid(deststnr);
+	} else if (tagb == TW_Infinity) {
+		FPU_copy_to_regi(b, TAG_Special, deststnr);
+		setsign(dest, signb);	/* signb may differ from the sign of b. */
+		return tagb;
 	}
-      /* Infinity-Infinity is undefined. */
-      return arith_invalid(deststnr);
-    }
-  else if (tagb == TW_Infinity)
-    {
-      FPU_copy_to_regi(b, TAG_Special, deststnr);
-      setsign(dest, signb);  /* signb may differ from the sign of b. */
-      return tagb;
-    }
-
 #ifdef PARANOID
-  EXCEPTION(EX_INTERNAL|0x101);
+	EXCEPTION(EX_INTERNAL | 0x101);
 #endif
 
-  return FPU_Exception;
+	return FPU_Exception;
 }
-
diff --git a/arch/x86/math-emu/reg_compare.c b/arch/x86/math-emu/reg_compare.c
index f37c5b5a35ad..ecce55fc2e2e 100644
--- a/arch/x86/math-emu/reg_compare.c
+++ b/arch/x86/math-emu/reg_compare.c
@@ -20,362 +20,331 @@
 #include "control_w.h"
 #include "status_w.h"
 
-
 static int compare(FPU_REG const *b, int tagb)
 {
-  int diff, exp0, expb;
-  u_char	  	st0_tag;
-  FPU_REG  	*st0_ptr;
-  FPU_REG	x, y;
-  u_char		st0_sign, signb = getsign(b);
-
-  st0_ptr = &st(0);
-  st0_tag = FPU_gettag0();
-  st0_sign = getsign(st0_ptr);
-
-  if ( tagb == TAG_Special )
-    tagb = FPU_Special(b);
-  if ( st0_tag == TAG_Special )
-    st0_tag = FPU_Special(st0_ptr);
-
-  if ( ((st0_tag != TAG_Valid) && (st0_tag != TW_Denormal))
-       || ((tagb != TAG_Valid) && (tagb != TW_Denormal)) )
-    {
-      if ( st0_tag == TAG_Zero )
-	{
-	  if ( tagb == TAG_Zero ) return COMP_A_eq_B;
-	  if ( tagb == TAG_Valid )
-	    return ((signb == SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B);
-	  if ( tagb == TW_Denormal )
-	    return ((signb == SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B)
-	    | COMP_Denormal;
-	}
-      else if ( tagb == TAG_Zero )
-	{
-	  if ( st0_tag == TAG_Valid )
-	    return ((st0_sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B);
-	  if ( st0_tag == TW_Denormal )
-	    return ((st0_sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B)
-	    | COMP_Denormal;
+	int diff, exp0, expb;
+	u_char st0_tag;
+	FPU_REG *st0_ptr;
+	FPU_REG x, y;
+	u_char st0_sign, signb = getsign(b);
+
+	st0_ptr = &st(0);
+	st0_tag = FPU_gettag0();
+	st0_sign = getsign(st0_ptr);
+
+	if (tagb == TAG_Special)
+		tagb = FPU_Special(b);
+	if (st0_tag == TAG_Special)
+		st0_tag = FPU_Special(st0_ptr);
+
+	if (((st0_tag != TAG_Valid) && (st0_tag != TW_Denormal))
+	    || ((tagb != TAG_Valid) && (tagb != TW_Denormal))) {
+		if (st0_tag == TAG_Zero) {
+			if (tagb == TAG_Zero)
+				return COMP_A_eq_B;
+			if (tagb == TAG_Valid)
+				return ((signb ==
+					 SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B);
+			if (tagb == TW_Denormal)
+				return ((signb ==
+					 SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B)
+				    | COMP_Denormal;
+		} else if (tagb == TAG_Zero) {
+			if (st0_tag == TAG_Valid)
+				return ((st0_sign ==
+					 SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B);
+			if (st0_tag == TW_Denormal)
+				return ((st0_sign ==
+					 SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B)
+				    | COMP_Denormal;
+		}
+
+		if (st0_tag == TW_Infinity) {
+			if ((tagb == TAG_Valid) || (tagb == TAG_Zero))
+				return ((st0_sign ==
+					 SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B);
+			else if (tagb == TW_Denormal)
+				return ((st0_sign ==
+					 SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B)
+				    | COMP_Denormal;
+			else if (tagb == TW_Infinity) {
+				/* The 80486 book says that infinities can be equal! */
+				return (st0_sign == signb) ? COMP_A_eq_B :
+				    ((st0_sign ==
+				      SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B);
+			}
+			/* Fall through to the NaN code */
+		} else if (tagb == TW_Infinity) {
+			if ((st0_tag == TAG_Valid) || (st0_tag == TAG_Zero))
+				return ((signb ==
+					 SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B);
+			if (st0_tag == TW_Denormal)
+				return ((signb ==
+					 SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B)
+				    | COMP_Denormal;
+			/* Fall through to the NaN code */
+		}
+
+		/* The only possibility now should be that one of the arguments
+		   is a NaN */
+		if ((st0_tag == TW_NaN) || (tagb == TW_NaN)) {
+			int signalling = 0, unsupported = 0;
+			if (st0_tag == TW_NaN) {
+				signalling =
+				    (st0_ptr->sigh & 0xc0000000) == 0x80000000;
+				unsupported = !((exponent(st0_ptr) == EXP_OVER)
+						&& (st0_ptr->
+						    sigh & 0x80000000));
+			}
+			if (tagb == TW_NaN) {
+				signalling |=
+				    (b->sigh & 0xc0000000) == 0x80000000;
+				unsupported |= !((exponent(b) == EXP_OVER)
+						 && (b->sigh & 0x80000000));
+			}
+			if (signalling || unsupported)
+				return COMP_No_Comp | COMP_SNaN | COMP_NaN;
+			else
+				/* Neither is a signaling NaN */
+				return COMP_No_Comp | COMP_NaN;
+		}
+
+		EXCEPTION(EX_Invalid);
 	}
 
-      if ( st0_tag == TW_Infinity )
-	{
-	  if ( (tagb == TAG_Valid) || (tagb == TAG_Zero) )
-	    return ((st0_sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B);
-	  else if ( tagb == TW_Denormal )
-	    return ((st0_sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B)
-	      | COMP_Denormal;
-	  else if ( tagb == TW_Infinity )
-	    {
-	      /* The 80486 book says that infinities can be equal! */
-	      return (st0_sign == signb) ? COMP_A_eq_B :
-		((st0_sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B);
-	    }
-	  /* Fall through to the NaN code */
-	}
-      else if ( tagb == TW_Infinity )
-	{
-	  if ( (st0_tag == TAG_Valid) || (st0_tag == TAG_Zero) )
-	    return ((signb == SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B);
-	  if ( st0_tag == TW_Denormal )
-	    return ((signb == SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B)
-		| COMP_Denormal;
-	  /* Fall through to the NaN code */
+	if (st0_sign != signb) {
+		return ((st0_sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B)
+		    | (((st0_tag == TW_Denormal) || (tagb == TW_Denormal)) ?
+		       COMP_Denormal : 0);
 	}
 
-      /* The only possibility now should be that one of the arguments
-	 is a NaN */
-      if ( (st0_tag == TW_NaN) || (tagb == TW_NaN) )
-	{
-	  int signalling = 0, unsupported = 0;
-	  if ( st0_tag == TW_NaN )
-	    {
-	      signalling = (st0_ptr->sigh & 0xc0000000) == 0x80000000;
-	      unsupported = !((exponent(st0_ptr) == EXP_OVER)
-			      && (st0_ptr->sigh & 0x80000000));
-	    }
-	  if ( tagb == TW_NaN )
-	    {
-	      signalling |= (b->sigh & 0xc0000000) == 0x80000000;
-	      unsupported |= !((exponent(b) == EXP_OVER)
-			       && (b->sigh & 0x80000000));
-	    }
-	  if ( signalling || unsupported )
-	    return COMP_No_Comp | COMP_SNaN | COMP_NaN;
-	  else
-	    /* Neither is a signaling NaN */
-	    return COMP_No_Comp | COMP_NaN;
+	if ((st0_tag == TW_Denormal) || (tagb == TW_Denormal)) {
+		FPU_to_exp16(st0_ptr, &x);
+		FPU_to_exp16(b, &y);
+		st0_ptr = &x;
+		b = &y;
+		exp0 = exponent16(st0_ptr);
+		expb = exponent16(b);
+	} else {
+		exp0 = exponent(st0_ptr);
+		expb = exponent(b);
 	}
-      
-      EXCEPTION(EX_Invalid);
-    }
-  
-  if (st0_sign != signb)
-    {
-      return ((st0_sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B)
-	| ( ((st0_tag == TW_Denormal) || (tagb == TW_Denormal)) ?
-	    COMP_Denormal : 0);
-    }
-
-  if ( (st0_tag == TW_Denormal) || (tagb == TW_Denormal) )
-    {
-      FPU_to_exp16(st0_ptr, &x);
-      FPU_to_exp16(b, &y);
-      st0_ptr = &x;
-      b = &y;
-      exp0 = exponent16(st0_ptr);
-      expb = exponent16(b);
-    }
-  else
-    {
-      exp0 = exponent(st0_ptr);
-      expb = exponent(b);
-    }
 
 #ifdef PARANOID
-  if (!(st0_ptr->sigh & 0x80000000)) EXCEPTION(EX_Invalid);
-  if (!(b->sigh & 0x80000000)) EXCEPTION(EX_Invalid);
+	if (!(st0_ptr->sigh & 0x80000000))
+		EXCEPTION(EX_Invalid);
+	if (!(b->sigh & 0x80000000))
+		EXCEPTION(EX_Invalid);
 #endif /* PARANOID */
 
-  diff = exp0 - expb;
-  if ( diff == 0 )
-    {
-      diff = st0_ptr->sigh - b->sigh;  /* Works only if ms bits are
-					      identical */
-      if ( diff == 0 )
-	{
-	diff = st0_ptr->sigl > b->sigl;
-	if ( diff == 0 )
-	  diff = -(st0_ptr->sigl < b->sigl);
+	diff = exp0 - expb;
+	if (diff == 0) {
+		diff = st0_ptr->sigh - b->sigh;	/* Works only if ms bits are
+						   identical */
+		if (diff == 0) {
+			diff = st0_ptr->sigl > b->sigl;
+			if (diff == 0)
+				diff = -(st0_ptr->sigl < b->sigl);
+		}
 	}
-    }
-
-  if ( diff > 0 )
-    {
-      return ((st0_sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B)
-	| ( ((st0_tag == TW_Denormal) || (tagb == TW_Denormal)) ?
-	    COMP_Denormal : 0);
-    }
-  if ( diff < 0 )
-    {
-      return ((st0_sign == SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B)
-	| ( ((st0_tag == TW_Denormal) || (tagb == TW_Denormal)) ?
-	    COMP_Denormal : 0);
-    }
-
-  return COMP_A_eq_B
-    | ( ((st0_tag == TW_Denormal) || (tagb == TW_Denormal)) ?
-	COMP_Denormal : 0);
 
-}
+	if (diff > 0) {
+		return ((st0_sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B)
+		    | (((st0_tag == TW_Denormal) || (tagb == TW_Denormal)) ?
+		       COMP_Denormal : 0);
+	}
+	if (diff < 0) {
+		return ((st0_sign == SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B)
+		    | (((st0_tag == TW_Denormal) || (tagb == TW_Denormal)) ?
+		       COMP_Denormal : 0);
+	}
 
+	return COMP_A_eq_B
+	    | (((st0_tag == TW_Denormal) || (tagb == TW_Denormal)) ?
+	       COMP_Denormal : 0);
+
+}
 
 /* This function requires that st(0) is not empty */
 int FPU_compare_st_data(FPU_REG const *loaded_data, u_char loaded_tag)
 {
-  int f = 0, c;
-
-  c = compare(loaded_data, loaded_tag);
-
-  if (c & COMP_NaN)
-    {
-      EXCEPTION(EX_Invalid);
-      f = SW_C3 | SW_C2 | SW_C0;
-    }
-  else
-    switch (c & 7)
-      {
-      case COMP_A_lt_B:
-	f = SW_C0;
-	break;
-      case COMP_A_eq_B:
-	f = SW_C3;
-	break;
-      case COMP_A_gt_B:
-	f = 0;
-	break;
-      case COMP_No_Comp:
-	f = SW_C3 | SW_C2 | SW_C0;
-	break;
+	int f = 0, c;
+
+	c = compare(loaded_data, loaded_tag);
+
+	if (c & COMP_NaN) {
+		EXCEPTION(EX_Invalid);
+		f = SW_C3 | SW_C2 | SW_C0;
+	} else
+		switch (c & 7) {
+		case COMP_A_lt_B:
+			f = SW_C0;
+			break;
+		case COMP_A_eq_B:
+			f = SW_C3;
+			break;
+		case COMP_A_gt_B:
+			f = 0;
+			break;
+		case COMP_No_Comp:
+			f = SW_C3 | SW_C2 | SW_C0;
+			break;
 #ifdef PARANOID
-      default:
-	EXCEPTION(EX_INTERNAL|0x121);
-	f = SW_C3 | SW_C2 | SW_C0;
-	break;
+		default:
+			EXCEPTION(EX_INTERNAL | 0x121);
+			f = SW_C3 | SW_C2 | SW_C0;
+			break;
 #endif /* PARANOID */
-      }
-  setcc(f);
-  if (c & COMP_Denormal)
-    {
-      return denormal_operand() < 0;
-    }
-  return 0;
+		}
+	setcc(f);
+	if (c & COMP_Denormal) {
+		return denormal_operand() < 0;
+	}
+	return 0;
 }
 
-
 static int compare_st_st(int nr)
 {
-  int f = 0, c;
-  FPU_REG *st_ptr;
-
-  if ( !NOT_EMPTY(0) || !NOT_EMPTY(nr) )
-    {
-      setcc(SW_C3 | SW_C2 | SW_C0);
-      /* Stack fault */
-      EXCEPTION(EX_StackUnder);
-      return !(control_word & CW_Invalid);
-    }
-
-  st_ptr = &st(nr);
-  c = compare(st_ptr, FPU_gettagi(nr));
-  if (c & COMP_NaN)
-    {
-      setcc(SW_C3 | SW_C2 | SW_C0);
-      EXCEPTION(EX_Invalid);
-      return !(control_word & CW_Invalid);
-    }
-  else
-    switch (c & 7)
-      {
-      case COMP_A_lt_B:
-	f = SW_C0;
-	break;
-      case COMP_A_eq_B:
-	f = SW_C3;
-	break;
-      case COMP_A_gt_B:
-	f = 0;
-	break;
-      case COMP_No_Comp:
-	f = SW_C3 | SW_C2 | SW_C0;
-	break;
+	int f = 0, c;
+	FPU_REG *st_ptr;
+
+	if (!NOT_EMPTY(0) || !NOT_EMPTY(nr)) {
+		setcc(SW_C3 | SW_C2 | SW_C0);
+		/* Stack fault */
+		EXCEPTION(EX_StackUnder);
+		return !(control_word & CW_Invalid);
+	}
+
+	st_ptr = &st(nr);
+	c = compare(st_ptr, FPU_gettagi(nr));
+	if (c & COMP_NaN) {
+		setcc(SW_C3 | SW_C2 | SW_C0);
+		EXCEPTION(EX_Invalid);
+		return !(control_word & CW_Invalid);
+	} else
+		switch (c & 7) {
+		case COMP_A_lt_B:
+			f = SW_C0;
+			break;
+		case COMP_A_eq_B:
+			f = SW_C3;
+			break;
+		case COMP_A_gt_B:
+			f = 0;
+			break;
+		case COMP_No_Comp:
+			f = SW_C3 | SW_C2 | SW_C0;
+			break;
 #ifdef PARANOID
-      default:
-	EXCEPTION(EX_INTERNAL|0x122);
-	f = SW_C3 | SW_C2 | SW_C0;
-	break;
+		default:
+			EXCEPTION(EX_INTERNAL | 0x122);
+			f = SW_C3 | SW_C2 | SW_C0;
+			break;
 #endif /* PARANOID */
-      }
-  setcc(f);
-  if (c & COMP_Denormal)
-    {
-      return denormal_operand() < 0;
-    }
-  return 0;
+		}
+	setcc(f);
+	if (c & COMP_Denormal) {
+		return denormal_operand() < 0;
+	}
+	return 0;
 }
 
-
 static int compare_u_st_st(int nr)
 {
-  int f = 0, c;
-  FPU_REG *st_ptr;
-
-  if ( !NOT_EMPTY(0) || !NOT_EMPTY(nr) )
-    {
-      setcc(SW_C3 | SW_C2 | SW_C0);
-      /* Stack fault */
-      EXCEPTION(EX_StackUnder);
-      return !(control_word & CW_Invalid);
-    }
-
-  st_ptr = &st(nr);
-  c = compare(st_ptr, FPU_gettagi(nr));
-  if (c & COMP_NaN)
-    {
-      setcc(SW_C3 | SW_C2 | SW_C0);
-      if (c & COMP_SNaN)       /* This is the only difference between
-				  un-ordered and ordinary comparisons */
-	{
-	  EXCEPTION(EX_Invalid);
-	  return !(control_word & CW_Invalid);
+	int f = 0, c;
+	FPU_REG *st_ptr;
+
+	if (!NOT_EMPTY(0) || !NOT_EMPTY(nr)) {
+		setcc(SW_C3 | SW_C2 | SW_C0);
+		/* Stack fault */
+		EXCEPTION(EX_StackUnder);
+		return !(control_word & CW_Invalid);
 	}
-      return 0;
-    }
-  else
-    switch (c & 7)
-      {
-      case COMP_A_lt_B:
-	f = SW_C0;
-	break;
-      case COMP_A_eq_B:
-	f = SW_C3;
-	break;
-      case COMP_A_gt_B:
-	f = 0;
-	break;
-      case COMP_No_Comp:
-	f = SW_C3 | SW_C2 | SW_C0;
-	break;
+
+	st_ptr = &st(nr);
+	c = compare(st_ptr, FPU_gettagi(nr));
+	if (c & COMP_NaN) {
+		setcc(SW_C3 | SW_C2 | SW_C0);
+		if (c & COMP_SNaN) {	/* This is the only difference between
+					   un-ordered and ordinary comparisons */
+			EXCEPTION(EX_Invalid);
+			return !(control_word & CW_Invalid);
+		}
+		return 0;
+	} else
+		switch (c & 7) {
+		case COMP_A_lt_B:
+			f = SW_C0;
+			break;
+		case COMP_A_eq_B:
+			f = SW_C3;
+			break;
+		case COMP_A_gt_B:
+			f = 0;
+			break;
+		case COMP_No_Comp:
+			f = SW_C3 | SW_C2 | SW_C0;
+			break;
 #ifdef PARANOID
-      default:
-	EXCEPTION(EX_INTERNAL|0x123);
-	f = SW_C3 | SW_C2 | SW_C0;
-	break;
-#endif /* PARANOID */ 
-      }
-  setcc(f);
-  if (c & COMP_Denormal)
-    {
-      return denormal_operand() < 0;
-    }
-  return 0;
+		default:
+			EXCEPTION(EX_INTERNAL | 0x123);
+			f = SW_C3 | SW_C2 | SW_C0;
+			break;
+#endif /* PARANOID */
+		}
+	setcc(f);
+	if (c & COMP_Denormal) {
+		return denormal_operand() < 0;
+	}
+	return 0;
 }
 
 /*---------------------------------------------------------------------------*/
 
 void fcom_st(void)
 {
-  /* fcom st(i) */
-  compare_st_st(FPU_rm);
+	/* fcom st(i) */
+	compare_st_st(FPU_rm);
 }
 
-
 void fcompst(void)
 {
-  /* fcomp st(i) */
-  if ( !compare_st_st(FPU_rm) )
-    FPU_pop();
+	/* fcomp st(i) */
+	if (!compare_st_st(FPU_rm))
+		FPU_pop();
 }
 
-
 void fcompp(void)
 {
-  /* fcompp */
-  if (FPU_rm != 1)
-    {
-      FPU_illegal();
-      return;
-    }
-  if ( !compare_st_st(1) )
-      poppop();
+	/* fcompp */
+	if (FPU_rm != 1) {
+		FPU_illegal();
+		return;
+	}
+	if (!compare_st_st(1))
+		poppop();
 }
 
-
 void fucom_(void)
 {
-  /* fucom st(i) */
-  compare_u_st_st(FPU_rm);
+	/* fucom st(i) */
+	compare_u_st_st(FPU_rm);
 
 }
 
-
 void fucomp(void)
 {
-  /* fucomp st(i) */
-  if ( !compare_u_st_st(FPU_rm) )
-    FPU_pop();
+	/* fucomp st(i) */
+	if (!compare_u_st_st(FPU_rm))
+		FPU_pop();
 }
 
-
 void fucompp(void)
 {
-  /* fucompp */
-  if (FPU_rm == 1)
-    {
-      if ( !compare_u_st_st(1) )
-	poppop();
-    }
-  else
-    FPU_illegal();
+	/* fucompp */
+	if (FPU_rm == 1) {
+		if (!compare_u_st_st(1))
+			poppop();
+	} else
+		FPU_illegal();
 }
diff --git a/arch/x86/math-emu/reg_constant.c b/arch/x86/math-emu/reg_constant.c
index a85015801969..04869e64b18e 100644
--- a/arch/x86/math-emu/reg_constant.c
+++ b/arch/x86/math-emu/reg_constant.c
@@ -16,29 +16,28 @@
 #include "reg_constant.h"
 #include "control_w.h"
 
-
 #define MAKE_REG(s,e,l,h) { l, h, \
                             ((EXTENDED_Ebias+(e)) | ((SIGN_##s != 0)*0x8000)) }
 
-FPU_REG const CONST_1    = MAKE_REG(POS, 0, 0x00000000, 0x80000000);
+FPU_REG const CONST_1 = MAKE_REG(POS, 0, 0x00000000, 0x80000000);
 #if 0
-FPU_REG const CONST_2    = MAKE_REG(POS, 1, 0x00000000, 0x80000000);
+FPU_REG const CONST_2 = MAKE_REG(POS, 1, 0x00000000, 0x80000000);
 FPU_REG const CONST_HALF = MAKE_REG(POS, -1, 0x00000000, 0x80000000);
-#endif  /*  0  */
-static FPU_REG const CONST_L2T  = MAKE_REG(POS, 1, 0xcd1b8afe, 0xd49a784b);
-static FPU_REG const CONST_L2E  = MAKE_REG(POS, 0, 0x5c17f0bc, 0xb8aa3b29);
-FPU_REG const CONST_PI   = MAKE_REG(POS, 1, 0x2168c235, 0xc90fdaa2);
-FPU_REG const CONST_PI2  = MAKE_REG(POS, 0, 0x2168c235, 0xc90fdaa2);
-FPU_REG const CONST_PI4  = MAKE_REG(POS, -1, 0x2168c235, 0xc90fdaa2);
-static FPU_REG const CONST_LG2  = MAKE_REG(POS, -2, 0xfbcff799, 0x9a209a84);
-static FPU_REG const CONST_LN2  = MAKE_REG(POS, -1, 0xd1cf79ac, 0xb17217f7);
+#endif /*  0  */
+static FPU_REG const CONST_L2T = MAKE_REG(POS, 1, 0xcd1b8afe, 0xd49a784b);
+static FPU_REG const CONST_L2E = MAKE_REG(POS, 0, 0x5c17f0bc, 0xb8aa3b29);
+FPU_REG const CONST_PI = MAKE_REG(POS, 1, 0x2168c235, 0xc90fdaa2);
+FPU_REG const CONST_PI2 = MAKE_REG(POS, 0, 0x2168c235, 0xc90fdaa2);
+FPU_REG const CONST_PI4 = MAKE_REG(POS, -1, 0x2168c235, 0xc90fdaa2);
+static FPU_REG const CONST_LG2 = MAKE_REG(POS, -2, 0xfbcff799, 0x9a209a84);
+static FPU_REG const CONST_LN2 = MAKE_REG(POS, -1, 0xd1cf79ac, 0xb17217f7);
 
 /* Extra bits to take pi/2 to more than 128 bits precision. */
 FPU_REG const CONST_PI2extra = MAKE_REG(NEG, -66,
-					 0xfc8f8cbb, 0xece675d1);
+					0xfc8f8cbb, 0xece675d1);
 
 /* Only the sign (and tag) is used in internal zeroes */
-FPU_REG const CONST_Z    = MAKE_REG(POS, EXP_UNDER, 0x0, 0x0);
+FPU_REG const CONST_Z = MAKE_REG(POS, EXP_UNDER, 0x0, 0x0);
 
 /* Only the sign and significand (and tag) are used in internal NaNs */
 /* The 80486 never generates one of these 
@@ -48,24 +47,22 @@ FPU_REG const CONST_SNAN = MAKE_REG(POS, EXP_OVER, 0x00000001, 0x80000000);
 FPU_REG const CONST_QNaN = MAKE_REG(NEG, EXP_OVER, 0x00000000, 0xC0000000);
 
 /* Only the sign (and tag) is used in internal infinities */
-FPU_REG const CONST_INF  = MAKE_REG(POS, EXP_OVER, 0x00000000, 0x80000000);
-
+FPU_REG const CONST_INF = MAKE_REG(POS, EXP_OVER, 0x00000000, 0x80000000);
 
 static void fld_const(FPU_REG const *c, int adj, u_char tag)
 {
-  FPU_REG *st_new_ptr;
-
-  if ( STACK_OVERFLOW )
-    {
-      FPU_stack_overflow();
-      return;
-    }
-  push();
-  reg_copy(c, st_new_ptr);
-  st_new_ptr->sigl += adj;  /* For all our fldxxx constants, we don't need to
-			       borrow or carry. */
-  FPU_settag0(tag);
-  clear_C1();
+	FPU_REG *st_new_ptr;
+
+	if (STACK_OVERFLOW) {
+		FPU_stack_overflow();
+		return;
+	}
+	push();
+	reg_copy(c, st_new_ptr);
+	st_new_ptr->sigl += adj;	/* For all our fldxxx constants, we don't need to
+					   borrow or carry. */
+	FPU_settag0(tag);
+	clear_C1();
 }
 
 /* A fast way to find out whether x is one of RC_DOWN or RC_CHOP
@@ -75,46 +72,46 @@ static void fld_const(FPU_REG const *c, int adj, u_char tag)
 
 static void fld1(int rc)
 {
-  fld_const(&CONST_1, 0, TAG_Valid);
+	fld_const(&CONST_1, 0, TAG_Valid);
 }
 
 static void fldl2t(int rc)
 {
-  fld_const(&CONST_L2T, (rc == RC_UP) ? 1 : 0, TAG_Valid);
+	fld_const(&CONST_L2T, (rc == RC_UP) ? 1 : 0, TAG_Valid);
 }
 
 static void fldl2e(int rc)
 {
-  fld_const(&CONST_L2E, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
+	fld_const(&CONST_L2E, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
 }
 
 static void fldpi(int rc)
 {
-  fld_const(&CONST_PI, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
+	fld_const(&CONST_PI, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
 }
 
 static void fldlg2(int rc)
 {
-  fld_const(&CONST_LG2, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
+	fld_const(&CONST_LG2, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
 }
 
 static void fldln2(int rc)
 {
-  fld_const(&CONST_LN2, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
+	fld_const(&CONST_LN2, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
 }
 
 static void fldz(int rc)
 {
-  fld_const(&CONST_Z, 0, TAG_Zero);
+	fld_const(&CONST_Z, 0, TAG_Zero);
 }
 
-typedef void (*FUNC_RC)(int);
+typedef void (*FUNC_RC) (int);
 
 static FUNC_RC constants_table[] = {
-  fld1, fldl2t, fldl2e, fldpi, fldlg2, fldln2, fldz, (FUNC_RC)FPU_illegal
+	fld1, fldl2t, fldl2e, fldpi, fldlg2, fldln2, fldz, (FUNC_RC) FPU_illegal
 };
 
 void fconst(void)
 {
-  (constants_table[FPU_rm])(control_word & CW_RC);
+	(constants_table[FPU_rm]) (control_word & CW_RC);
 }
diff --git a/arch/x86/math-emu/reg_convert.c b/arch/x86/math-emu/reg_convert.c
index 45a258752703..afd31b31000d 100644
--- a/arch/x86/math-emu/reg_convert.c
+++ b/arch/x86/math-emu/reg_convert.c
@@ -13,41 +13,34 @@
 #include "exception.h"
 #include "fpu_emu.h"
 
-
-int FPU_to_exp16(FPU_REG const *a, FPU_REG *x)
+int FPU_to_exp16(FPU_REG const *a, FPU_REG * x)
 {
-  int sign = getsign(a);
-
-  *(long long *)&(x->sigl) = *(const long long *)&(a->sigl);
-
-  /* Set up the exponent as a 16 bit quantity. */
-  setexponent16(x, exponent(a));
-
-  if ( exponent16(x) == EXP_UNDER )
-    {
-      /* The number is a de-normal or pseudodenormal. */
-      /* We only deal with the significand and exponent. */
-
-      if (x->sigh & 0x80000000)
-	{
-	  /* Is a pseudodenormal. */
-	  /* This is non-80486 behaviour because the number
-	     loses its 'denormal' identity. */
-	  addexponent(x, 1);
-	}
-      else
-	{
-	  /* Is a denormal. */
-	  addexponent(x, 1);
-	  FPU_normalize_nuo(x);
+	int sign = getsign(a);
+
+	*(long long *)&(x->sigl) = *(const long long *)&(a->sigl);
+
+	/* Set up the exponent as a 16 bit quantity. */
+	setexponent16(x, exponent(a));
+
+	if (exponent16(x) == EXP_UNDER) {
+		/* The number is a de-normal or pseudodenormal. */
+		/* We only deal with the significand and exponent. */
+
+		if (x->sigh & 0x80000000) {
+			/* Is a pseudodenormal. */
+			/* This is non-80486 behaviour because the number
+			   loses its 'denormal' identity. */
+			addexponent(x, 1);
+		} else {
+			/* Is a denormal. */
+			addexponent(x, 1);
+			FPU_normalize_nuo(x);
+		}
 	}
-    }
 
-  if ( !(x->sigh & 0x80000000) )
-    {
-      EXCEPTION(EX_INTERNAL | 0x180);
-    }
+	if (!(x->sigh & 0x80000000)) {
+		EXCEPTION(EX_INTERNAL | 0x180);
+	}
 
-  return sign;
+	return sign;
 }
-
diff --git a/arch/x86/math-emu/reg_divide.c b/arch/x86/math-emu/reg_divide.c
index 5cee7ff920d9..6827012db341 100644
--- a/arch/x86/math-emu/reg_divide.c
+++ b/arch/x86/math-emu/reg_divide.c
@@ -26,182 +26,157 @@
   */
 int FPU_div(int flags, int rm, int control_w)
 {
-  FPU_REG x, y;
-  FPU_REG const *a, *b, *st0_ptr, *st_ptr;
-  FPU_REG *dest;
-  u_char taga, tagb, signa, signb, sign, saved_sign;
-  int tag, deststnr;
-
-  if ( flags & DEST_RM )
-    deststnr = rm;
-  else
-    deststnr = 0;
-
-  if ( flags & REV )
-    {
-      b = &st(0);
-      st0_ptr = b;
-      tagb = FPU_gettag0();
-      if ( flags & LOADED )
-	{
-	  a = (FPU_REG *)rm;
-	  taga = flags & 0x0f;
+	FPU_REG x, y;
+	FPU_REG const *a, *b, *st0_ptr, *st_ptr;
+	FPU_REG *dest;
+	u_char taga, tagb, signa, signb, sign, saved_sign;
+	int tag, deststnr;
+
+	if (flags & DEST_RM)
+		deststnr = rm;
+	else
+		deststnr = 0;
+
+	if (flags & REV) {
+		b = &st(0);
+		st0_ptr = b;
+		tagb = FPU_gettag0();
+		if (flags & LOADED) {
+			a = (FPU_REG *) rm;
+			taga = flags & 0x0f;
+		} else {
+			a = &st(rm);
+			st_ptr = a;
+			taga = FPU_gettagi(rm);
+		}
+	} else {
+		a = &st(0);
+		st0_ptr = a;
+		taga = FPU_gettag0();
+		if (flags & LOADED) {
+			b = (FPU_REG *) rm;
+			tagb = flags & 0x0f;
+		} else {
+			b = &st(rm);
+			st_ptr = b;
+			tagb = FPU_gettagi(rm);
+		}
 	}
-      else
-	{
-	  a = &st(rm);
-	  st_ptr = a;
-	  taga = FPU_gettagi(rm);
-	}
-    }
-  else
-    {
-      a = &st(0);
-      st0_ptr = a;
-      taga = FPU_gettag0();
-      if ( flags & LOADED )
-	{
-	  b = (FPU_REG *)rm;
-	  tagb = flags & 0x0f;
-	}
-      else
-	{
-	  b = &st(rm);
-	  st_ptr = b;
-	  tagb = FPU_gettagi(rm);
-	}
-    }
 
-  signa = getsign(a);
-  signb = getsign(b);
+	signa = getsign(a);
+	signb = getsign(b);
 
-  sign = signa ^ signb;
+	sign = signa ^ signb;
 
-  dest = &st(deststnr);
-  saved_sign = getsign(dest);
+	dest = &st(deststnr);
+	saved_sign = getsign(dest);
 
-  if ( !(taga | tagb) )
-    {
-      /* Both regs Valid, this should be the most common case. */
-      reg_copy(a, &x);
-      reg_copy(b, &y);
-      setpositive(&x);
-      setpositive(&y);
-      tag = FPU_u_div(&x, &y, dest, control_w, sign);
+	if (!(taga | tagb)) {
+		/* Both regs Valid, this should be the most common case. */
+		reg_copy(a, &x);
+		reg_copy(b, &y);
+		setpositive(&x);
+		setpositive(&y);
+		tag = FPU_u_div(&x, &y, dest, control_w, sign);
 
-      if ( tag < 0 )
-	return tag;
+		if (tag < 0)
+			return tag;
 
-      FPU_settagi(deststnr, tag);
-      return tag;
-    }
+		FPU_settagi(deststnr, tag);
+		return tag;
+	}
 
-  if ( taga == TAG_Special )
-    taga = FPU_Special(a);
-  if ( tagb == TAG_Special )
-    tagb = FPU_Special(b);
+	if (taga == TAG_Special)
+		taga = FPU_Special(a);
+	if (tagb == TAG_Special)
+		tagb = FPU_Special(b);
 
-  if ( ((taga == TAG_Valid) && (tagb == TW_Denormal))
+	if (((taga == TAG_Valid) && (tagb == TW_Denormal))
 	    || ((taga == TW_Denormal) && (tagb == TAG_Valid))
-	    || ((taga == TW_Denormal) && (tagb == TW_Denormal)) )
-    {
-      if ( denormal_operand() < 0 )
-	return FPU_Exception;
-
-      FPU_to_exp16(a, &x);
-      FPU_to_exp16(b, &y);
-      tag = FPU_u_div(&x, &y, dest, control_w, sign);
-      if ( tag < 0 )
-	return tag;
-
-      FPU_settagi(deststnr, tag);
-      return tag;
-    }
-  else if ( (taga <= TW_Denormal) && (tagb <= TW_Denormal) )
-    {
-      if ( tagb != TAG_Zero )
-	{
-	  /* Want to find Zero/Valid */
-	  if ( tagb == TW_Denormal )
-	    {
-	      if ( denormal_operand() < 0 )
-		return FPU_Exception;
-	    }
-
-	  /* The result is zero. */
-	  FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
-	  setsign(dest, sign);
-	  return TAG_Zero;
+	    || ((taga == TW_Denormal) && (tagb == TW_Denormal))) {
+		if (denormal_operand() < 0)
+			return FPU_Exception;
+
+		FPU_to_exp16(a, &x);
+		FPU_to_exp16(b, &y);
+		tag = FPU_u_div(&x, &y, dest, control_w, sign);
+		if (tag < 0)
+			return tag;
+
+		FPU_settagi(deststnr, tag);
+		return tag;
+	} else if ((taga <= TW_Denormal) && (tagb <= TW_Denormal)) {
+		if (tagb != TAG_Zero) {
+			/* Want to find Zero/Valid */
+			if (tagb == TW_Denormal) {
+				if (denormal_operand() < 0)
+					return FPU_Exception;
+			}
+
+			/* The result is zero. */
+			FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
+			setsign(dest, sign);
+			return TAG_Zero;
+		}
+		/* We have an exception condition, either 0/0 or Valid/Zero. */
+		if (taga == TAG_Zero) {
+			/* 0/0 */
+			return arith_invalid(deststnr);
+		}
+		/* Valid/Zero */
+		return FPU_divide_by_zero(deststnr, sign);
 	}
-      /* We have an exception condition, either 0/0 or Valid/Zero. */
-      if ( taga == TAG_Zero )
-	{
-	  /* 0/0 */
-	  return arith_invalid(deststnr);
+	/* Must have infinities, NaNs, etc */
+	else if ((taga == TW_NaN) || (tagb == TW_NaN)) {
+		if (flags & LOADED)
+			return real_2op_NaN((FPU_REG *) rm, flags & 0x0f, 0,
+					    st0_ptr);
+
+		if (flags & DEST_RM) {
+			int tag;
+			tag = FPU_gettag0();
+			if (tag == TAG_Special)
+				tag = FPU_Special(st0_ptr);
+			return real_2op_NaN(st0_ptr, tag, rm,
+					    (flags & REV) ? st0_ptr : &st(rm));
+		} else {
+			int tag;
+			tag = FPU_gettagi(rm);
+			if (tag == TAG_Special)
+				tag = FPU_Special(&st(rm));
+			return real_2op_NaN(&st(rm), tag, 0,
+					    (flags & REV) ? st0_ptr : &st(rm));
+		}
+	} else if (taga == TW_Infinity) {
+		if (tagb == TW_Infinity) {
+			/* infinity/infinity */
+			return arith_invalid(deststnr);
+		} else {
+			/* tagb must be Valid or Zero */
+			if ((tagb == TW_Denormal) && (denormal_operand() < 0))
+				return FPU_Exception;
+
+			/* Infinity divided by Zero or Valid does
+			   not raise and exception, but returns Infinity */
+			FPU_copy_to_regi(a, TAG_Special, deststnr);
+			setsign(dest, sign);
+			return taga;
+		}
+	} else if (tagb == TW_Infinity) {
+		if ((taga == TW_Denormal) && (denormal_operand() < 0))
+			return FPU_Exception;
+
+		/* The result is zero. */
+		FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
+		setsign(dest, sign);
+		return TAG_Zero;
 	}
-      /* Valid/Zero */
-      return FPU_divide_by_zero(deststnr, sign);
-    }
-  /* Must have infinities, NaNs, etc */
-  else if ( (taga == TW_NaN) || (tagb == TW_NaN) )
-    {
-      if ( flags & LOADED )
-	return real_2op_NaN((FPU_REG *)rm, flags & 0x0f, 0, st0_ptr);
-
-      if ( flags & DEST_RM )
-	{
-	  int tag;
-	  tag = FPU_gettag0();
-	  if ( tag == TAG_Special )
-	    tag = FPU_Special(st0_ptr);
-	  return real_2op_NaN(st0_ptr, tag, rm, (flags & REV) ? st0_ptr : &st(rm));
-	}
-      else
-	{
-	  int tag;
-	  tag = FPU_gettagi(rm);
-	  if ( tag == TAG_Special )
-	    tag = FPU_Special(&st(rm));
-	  return real_2op_NaN(&st(rm), tag, 0, (flags & REV) ? st0_ptr : &st(rm));
-	}
-    }
-  else if (taga == TW_Infinity)
-    {
-      if (tagb == TW_Infinity)
-	{
-	  /* infinity/infinity */
-	  return arith_invalid(deststnr);
-	}
-      else
-	{
-	  /* tagb must be Valid or Zero */
-	  if ( (tagb == TW_Denormal) && (denormal_operand() < 0) )
-	    return FPU_Exception;
-	  
-	  /* Infinity divided by Zero or Valid does
-	     not raise and exception, but returns Infinity */
-	  FPU_copy_to_regi(a, TAG_Special, deststnr);
-	  setsign(dest, sign);
-	  return taga;
-	}
-    }
-  else if (tagb == TW_Infinity)
-    {
-      if ( (taga == TW_Denormal) && (denormal_operand() < 0) )
-	return FPU_Exception;
-
-      /* The result is zero. */
-      FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
-      setsign(dest, sign);
-      return TAG_Zero;
-    }
 #ifdef PARANOID
-  else
-    {
-      EXCEPTION(EX_INTERNAL|0x102);
-      return FPU_Exception;
-    }
-#endif /* PARANOID */ 
+	else {
+		EXCEPTION(EX_INTERNAL | 0x102);
+		return FPU_Exception;
+	}
+#endif /* PARANOID */
 
 	return 0;
 }
diff --git a/arch/x86/math-emu/reg_ld_str.c b/arch/x86/math-emu/reg_ld_str.c
index e976caef6498..0b2ca8dc2988 100644
--- a/arch/x86/math-emu/reg_ld_str.c
+++ b/arch/x86/math-emu/reg_ld_str.c
@@ -27,1084 +27,938 @@
 #include "control_w.h"
 #include "status_w.h"
 
-
-#define DOUBLE_Emax 1023         /* largest valid exponent */
+#define DOUBLE_Emax 1023	/* largest valid exponent */
 #define DOUBLE_Ebias 1023
-#define DOUBLE_Emin (-1022)      /* smallest valid exponent */
+#define DOUBLE_Emin (-1022)	/* smallest valid exponent */
 
-#define SINGLE_Emax 127          /* largest valid exponent */
+#define SINGLE_Emax 127		/* largest valid exponent */
 #define SINGLE_Ebias 127
-#define SINGLE_Emin (-126)       /* smallest valid exponent */
-
+#define SINGLE_Emin (-126)	/* smallest valid exponent */
 
-static u_char normalize_no_excep(FPU_REG *r, int exp, int sign)
+static u_char normalize_no_excep(FPU_REG * r, int exp, int sign)
 {
-  u_char tag;
+	u_char tag;
 
-  setexponent16(r, exp);
+	setexponent16(r, exp);
 
-  tag = FPU_normalize_nuo(r);
-  stdexp(r);
-  if ( sign )
-    setnegative(r);
+	tag = FPU_normalize_nuo(r);
+	stdexp(r);
+	if (sign)
+		setnegative(r);
 
-  return tag;
+	return tag;
 }
 
-
-int FPU_tagof(FPU_REG *ptr)
+int FPU_tagof(FPU_REG * ptr)
 {
-  int exp;
-
-  exp = exponent16(ptr) & 0x7fff;
-  if ( exp == 0 )
-    {
-      if ( !(ptr->sigh | ptr->sigl) )
-	{
-	  return TAG_Zero;
+	int exp;
+
+	exp = exponent16(ptr) & 0x7fff;
+	if (exp == 0) {
+		if (!(ptr->sigh | ptr->sigl)) {
+			return TAG_Zero;
+		}
+		/* The number is a de-normal or pseudodenormal. */
+		return TAG_Special;
+	}
+
+	if (exp == 0x7fff) {
+		/* Is an Infinity, a NaN, or an unsupported data type. */
+		return TAG_Special;
 	}
-      /* The number is a de-normal or pseudodenormal. */
-      return TAG_Special;
-    }
-
-  if ( exp == 0x7fff )
-    {
-      /* Is an Infinity, a NaN, or an unsupported data type. */
-      return TAG_Special;
-    }
-
-  if ( !(ptr->sigh & 0x80000000) )
-    {
-      /* Unsupported data type. */
-      /* Valid numbers have the ms bit set to 1. */
-      /* Unnormal. */
-      return TAG_Special;
-    }
-
-  return TAG_Valid;
-}
 
+	if (!(ptr->sigh & 0x80000000)) {
+		/* Unsupported data type. */
+		/* Valid numbers have the ms bit set to 1. */
+		/* Unnormal. */
+		return TAG_Special;
+	}
+
+	return TAG_Valid;
+}
 
 /* Get a long double from user memory */
-int FPU_load_extended(long double __user *s, int stnr)
+int FPU_load_extended(long double __user * s, int stnr)
 {
-  FPU_REG *sti_ptr = &st(stnr);
+	FPU_REG *sti_ptr = &st(stnr);
 
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_READ, s, 10);
-  __copy_from_user(sti_ptr, s, 10);
-  RE_ENTRANT_CHECK_ON;
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_READ, s, 10);
+	__copy_from_user(sti_ptr, s, 10);
+	RE_ENTRANT_CHECK_ON;
 
-  return FPU_tagof(sti_ptr);
+	return FPU_tagof(sti_ptr);
 }
 
-
 /* Get a double from user memory */
-int FPU_load_double(double __user *dfloat, FPU_REG *loaded_data)
+int FPU_load_double(double __user * dfloat, FPU_REG * loaded_data)
 {
-  int exp, tag, negative;
-  unsigned m64, l64;
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_READ, dfloat, 8);
-  FPU_get_user(m64, 1 + (unsigned long __user *) dfloat);
-  FPU_get_user(l64, (unsigned long __user *) dfloat);
-  RE_ENTRANT_CHECK_ON;
-
-  negative = (m64 & 0x80000000) ? SIGN_Negative : SIGN_Positive;
-  exp = ((m64 & 0x7ff00000) >> 20) - DOUBLE_Ebias + EXTENDED_Ebias;
-  m64 &= 0xfffff;
-  if ( exp > DOUBLE_Emax + EXTENDED_Ebias )
-    {
-      /* Infinity or NaN */
-      if ((m64 == 0) && (l64 == 0))
-	{
-	  /* +- infinity */
-	  loaded_data->sigh = 0x80000000;
-	  loaded_data->sigl = 0x00000000;
-	  exp = EXP_Infinity + EXTENDED_Ebias;
-	  tag = TAG_Special;
-	}
-      else
-	{
-	  /* Must be a signaling or quiet NaN */
-	  exp = EXP_NaN + EXTENDED_Ebias;
-	  loaded_data->sigh = (m64 << 11) | 0x80000000;
-	  loaded_data->sigh |= l64 >> 21;
-	  loaded_data->sigl = l64 << 11;
-	  tag = TAG_Special;    /* The calling function must look for NaNs */
-	}
-    }
-  else if ( exp < DOUBLE_Emin + EXTENDED_Ebias )
-    {
-      /* Zero or de-normal */
-      if ((m64 == 0) && (l64 == 0))
-	{
-	  /* Zero */
-	  reg_copy(&CONST_Z, loaded_data);
-	  exp = 0;
-	  tag = TAG_Zero;
-	}
-      else
-	{
-	  /* De-normal */
-	  loaded_data->sigh = m64 << 11;
-	  loaded_data->sigh |= l64 >> 21;
-	  loaded_data->sigl = l64 << 11;
-
-	  return normalize_no_excep(loaded_data, DOUBLE_Emin, negative)
-	    | (denormal_operand() < 0 ? FPU_Exception : 0);
-	}
-    }
-  else
-    {
-      loaded_data->sigh = (m64 << 11) | 0x80000000;
-      loaded_data->sigh |= l64 >> 21;
-      loaded_data->sigl = l64 << 11;
+	int exp, tag, negative;
+	unsigned m64, l64;
+
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_READ, dfloat, 8);
+	FPU_get_user(m64, 1 + (unsigned long __user *)dfloat);
+	FPU_get_user(l64, (unsigned long __user *)dfloat);
+	RE_ENTRANT_CHECK_ON;
+
+	negative = (m64 & 0x80000000) ? SIGN_Negative : SIGN_Positive;
+	exp = ((m64 & 0x7ff00000) >> 20) - DOUBLE_Ebias + EXTENDED_Ebias;
+	m64 &= 0xfffff;
+	if (exp > DOUBLE_Emax + EXTENDED_Ebias) {
+		/* Infinity or NaN */
+		if ((m64 == 0) && (l64 == 0)) {
+			/* +- infinity */
+			loaded_data->sigh = 0x80000000;
+			loaded_data->sigl = 0x00000000;
+			exp = EXP_Infinity + EXTENDED_Ebias;
+			tag = TAG_Special;
+		} else {
+			/* Must be a signaling or quiet NaN */
+			exp = EXP_NaN + EXTENDED_Ebias;
+			loaded_data->sigh = (m64 << 11) | 0x80000000;
+			loaded_data->sigh |= l64 >> 21;
+			loaded_data->sigl = l64 << 11;
+			tag = TAG_Special;	/* The calling function must look for NaNs */
+		}
+	} else if (exp < DOUBLE_Emin + EXTENDED_Ebias) {
+		/* Zero or de-normal */
+		if ((m64 == 0) && (l64 == 0)) {
+			/* Zero */
+			reg_copy(&CONST_Z, loaded_data);
+			exp = 0;
+			tag = TAG_Zero;
+		} else {
+			/* De-normal */
+			loaded_data->sigh = m64 << 11;
+			loaded_data->sigh |= l64 >> 21;
+			loaded_data->sigl = l64 << 11;
+
+			return normalize_no_excep(loaded_data, DOUBLE_Emin,
+						  negative)
+			    | (denormal_operand() < 0 ? FPU_Exception : 0);
+		}
+	} else {
+		loaded_data->sigh = (m64 << 11) | 0x80000000;
+		loaded_data->sigh |= l64 >> 21;
+		loaded_data->sigl = l64 << 11;
 
-      tag = TAG_Valid;
-    }
+		tag = TAG_Valid;
+	}
 
-  setexponent16(loaded_data, exp | negative);
+	setexponent16(loaded_data, exp | negative);
 
-  return tag;
+	return tag;
 }
 
-
 /* Get a float from user memory */
-int FPU_load_single(float __user *single, FPU_REG *loaded_data)
+int FPU_load_single(float __user * single, FPU_REG * loaded_data)
 {
-  unsigned m32;
-  int exp, tag, negative;
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_READ, single, 4);
-  FPU_get_user(m32, (unsigned long __user *) single);
-  RE_ENTRANT_CHECK_ON;
-
-  negative = (m32 & 0x80000000) ? SIGN_Negative : SIGN_Positive;
-
-  if (!(m32 & 0x7fffffff))
-    {
-      /* Zero */
-      reg_copy(&CONST_Z, loaded_data);
-      addexponent(loaded_data, negative);
-      return TAG_Zero;
-    }
-  exp = ((m32 & 0x7f800000) >> 23) - SINGLE_Ebias + EXTENDED_Ebias;
-  m32 = (m32 & 0x7fffff) << 8;
-  if ( exp < SINGLE_Emin + EXTENDED_Ebias )
-    {
-      /* De-normals */
-      loaded_data->sigh = m32;
-      loaded_data->sigl = 0;
-
-      return normalize_no_excep(loaded_data, SINGLE_Emin, negative)
-	| (denormal_operand() < 0 ? FPU_Exception : 0);
-    }
-  else if ( exp > SINGLE_Emax + EXTENDED_Ebias )
-    {
-    /* Infinity or NaN */
-      if ( m32 == 0 )
-	{
-	  /* +- infinity */
-	  loaded_data->sigh = 0x80000000;
-	  loaded_data->sigl = 0x00000000;
-	  exp = EXP_Infinity + EXTENDED_Ebias;
-	  tag = TAG_Special;
+	unsigned m32;
+	int exp, tag, negative;
+
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_READ, single, 4);
+	FPU_get_user(m32, (unsigned long __user *)single);
+	RE_ENTRANT_CHECK_ON;
+
+	negative = (m32 & 0x80000000) ? SIGN_Negative : SIGN_Positive;
+
+	if (!(m32 & 0x7fffffff)) {
+		/* Zero */
+		reg_copy(&CONST_Z, loaded_data);
+		addexponent(loaded_data, negative);
+		return TAG_Zero;
 	}
-      else
-	{
-	  /* Must be a signaling or quiet NaN */
-	  exp = EXP_NaN + EXTENDED_Ebias;
-	  loaded_data->sigh = m32 | 0x80000000;
-	  loaded_data->sigl = 0;
-	  tag = TAG_Special;  /* The calling function must look for NaNs */
+	exp = ((m32 & 0x7f800000) >> 23) - SINGLE_Ebias + EXTENDED_Ebias;
+	m32 = (m32 & 0x7fffff) << 8;
+	if (exp < SINGLE_Emin + EXTENDED_Ebias) {
+		/* De-normals */
+		loaded_data->sigh = m32;
+		loaded_data->sigl = 0;
+
+		return normalize_no_excep(loaded_data, SINGLE_Emin, negative)
+		    | (denormal_operand() < 0 ? FPU_Exception : 0);
+	} else if (exp > SINGLE_Emax + EXTENDED_Ebias) {
+		/* Infinity or NaN */
+		if (m32 == 0) {
+			/* +- infinity */
+			loaded_data->sigh = 0x80000000;
+			loaded_data->sigl = 0x00000000;
+			exp = EXP_Infinity + EXTENDED_Ebias;
+			tag = TAG_Special;
+		} else {
+			/* Must be a signaling or quiet NaN */
+			exp = EXP_NaN + EXTENDED_Ebias;
+			loaded_data->sigh = m32 | 0x80000000;
+			loaded_data->sigl = 0;
+			tag = TAG_Special;	/* The calling function must look for NaNs */
+		}
+	} else {
+		loaded_data->sigh = m32 | 0x80000000;
+		loaded_data->sigl = 0;
+		tag = TAG_Valid;
 	}
-    }
-  else
-    {
-      loaded_data->sigh = m32 | 0x80000000;
-      loaded_data->sigl = 0;
-      tag = TAG_Valid;
-    }
 
-  setexponent16(loaded_data, exp | negative);  /* Set the sign. */
+	setexponent16(loaded_data, exp | negative);	/* Set the sign. */
 
-  return tag;
+	return tag;
 }
 
-
 /* Get a long long from user memory */
-int FPU_load_int64(long long __user *_s)
+int FPU_load_int64(long long __user * _s)
 {
-  long long s;
-  int sign;
-  FPU_REG *st0_ptr = &st(0);
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_READ, _s, 8);
-  if (copy_from_user(&s,_s,8))
-    FPU_abort;
-  RE_ENTRANT_CHECK_ON;
-
-  if (s == 0)
-    {
-      reg_copy(&CONST_Z, st0_ptr);
-      return TAG_Zero;
-    }
-
-  if (s > 0)
-    sign = SIGN_Positive;
-  else
-  {
-    s = -s;
-    sign = SIGN_Negative;
-  }
-
-  significand(st0_ptr) = s;
-
-  return normalize_no_excep(st0_ptr, 63, sign);
-}
+	long long s;
+	int sign;
+	FPU_REG *st0_ptr = &st(0);
+
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_READ, _s, 8);
+	if (copy_from_user(&s, _s, 8))
+		FPU_abort;
+	RE_ENTRANT_CHECK_ON;
+
+	if (s == 0) {
+		reg_copy(&CONST_Z, st0_ptr);
+		return TAG_Zero;
+	}
+
+	if (s > 0)
+		sign = SIGN_Positive;
+	else {
+		s = -s;
+		sign = SIGN_Negative;
+	}
 
+	significand(st0_ptr) = s;
+
+	return normalize_no_excep(st0_ptr, 63, sign);
+}
 
 /* Get a long from user memory */
-int FPU_load_int32(long __user *_s, FPU_REG *loaded_data)
+int FPU_load_int32(long __user * _s, FPU_REG * loaded_data)
 {
-  long s;
-  int negative;
+	long s;
+	int negative;
 
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_READ, _s, 4);
-  FPU_get_user(s, _s);
-  RE_ENTRANT_CHECK_ON;
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_READ, _s, 4);
+	FPU_get_user(s, _s);
+	RE_ENTRANT_CHECK_ON;
 
-  if (s == 0)
-    { reg_copy(&CONST_Z, loaded_data); return TAG_Zero; }
+	if (s == 0) {
+		reg_copy(&CONST_Z, loaded_data);
+		return TAG_Zero;
+	}
 
-  if (s > 0)
-    negative = SIGN_Positive;
-  else
-    {
-      s = -s;
-      negative = SIGN_Negative;
-    }
+	if (s > 0)
+		negative = SIGN_Positive;
+	else {
+		s = -s;
+		negative = SIGN_Negative;
+	}
 
-  loaded_data->sigh = s;
-  loaded_data->sigl = 0;
+	loaded_data->sigh = s;
+	loaded_data->sigl = 0;
 
-  return normalize_no_excep(loaded_data, 31, negative);
+	return normalize_no_excep(loaded_data, 31, negative);
 }
 
-
 /* Get a short from user memory */
-int FPU_load_int16(short __user *_s, FPU_REG *loaded_data)
+int FPU_load_int16(short __user * _s, FPU_REG * loaded_data)
 {
-  int s, negative;
+	int s, negative;
 
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_READ, _s, 2);
-  /* Cast as short to get the sign extended. */
-  FPU_get_user(s, _s);
-  RE_ENTRANT_CHECK_ON;
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_READ, _s, 2);
+	/* Cast as short to get the sign extended. */
+	FPU_get_user(s, _s);
+	RE_ENTRANT_CHECK_ON;
 
-  if (s == 0)
-    { reg_copy(&CONST_Z, loaded_data); return TAG_Zero; }
+	if (s == 0) {
+		reg_copy(&CONST_Z, loaded_data);
+		return TAG_Zero;
+	}
 
-  if (s > 0)
-    negative = SIGN_Positive;
-  else
-    {
-      s = -s;
-      negative = SIGN_Negative;
-    }
+	if (s > 0)
+		negative = SIGN_Positive;
+	else {
+		s = -s;
+		negative = SIGN_Negative;
+	}
 
-  loaded_data->sigh = s << 16;
-  loaded_data->sigl = 0;
+	loaded_data->sigh = s << 16;
+	loaded_data->sigl = 0;
 
-  return normalize_no_excep(loaded_data, 15, negative);
+	return normalize_no_excep(loaded_data, 15, negative);
 }
 
-
 /* Get a packed bcd array from user memory */
-int FPU_load_bcd(u_char __user *s)
+int FPU_load_bcd(u_char __user * s)
 {
-  FPU_REG *st0_ptr = &st(0);
-  int pos;
-  u_char bcd;
-  long long l=0;
-  int sign;
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_READ, s, 10);
-  RE_ENTRANT_CHECK_ON;
-  for ( pos = 8; pos >= 0; pos--)
-    {
-      l *= 10;
-      RE_ENTRANT_CHECK_OFF;
-      FPU_get_user(bcd, s+pos);
-      RE_ENTRANT_CHECK_ON;
-      l += bcd >> 4;
-      l *= 10;
-      l += bcd & 0x0f;
-    }
- 
-  RE_ENTRANT_CHECK_OFF;
-  FPU_get_user(sign, s+9);
-  sign = sign & 0x80 ? SIGN_Negative : SIGN_Positive;
-  RE_ENTRANT_CHECK_ON;
-
-  if ( l == 0 )
-    {
-      reg_copy(&CONST_Z, st0_ptr);
-      addexponent(st0_ptr, sign);   /* Set the sign. */
-      return TAG_Zero;
-    }
-  else
-    {
-      significand(st0_ptr) = l;
-      return normalize_no_excep(st0_ptr, 63, sign);
-    }
+	FPU_REG *st0_ptr = &st(0);
+	int pos;
+	u_char bcd;
+	long long l = 0;
+	int sign;
+
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_READ, s, 10);
+	RE_ENTRANT_CHECK_ON;
+	for (pos = 8; pos >= 0; pos--) {
+		l *= 10;
+		RE_ENTRANT_CHECK_OFF;
+		FPU_get_user(bcd, s + pos);
+		RE_ENTRANT_CHECK_ON;
+		l += bcd >> 4;
+		l *= 10;
+		l += bcd & 0x0f;
+	}
+
+	RE_ENTRANT_CHECK_OFF;
+	FPU_get_user(sign, s + 9);
+	sign = sign & 0x80 ? SIGN_Negative : SIGN_Positive;
+	RE_ENTRANT_CHECK_ON;
+
+	if (l == 0) {
+		reg_copy(&CONST_Z, st0_ptr);
+		addexponent(st0_ptr, sign);	/* Set the sign. */
+		return TAG_Zero;
+	} else {
+		significand(st0_ptr) = l;
+		return normalize_no_excep(st0_ptr, 63, sign);
+	}
 }
 
 /*===========================================================================*/
 
 /* Put a long double into user memory */
-int FPU_store_extended(FPU_REG *st0_ptr, u_char st0_tag, long double __user *d)
+int FPU_store_extended(FPU_REG * st0_ptr, u_char st0_tag,
+		       long double __user * d)
 {
-  /*
-    The only exception raised by an attempt to store to an
-    extended format is the Invalid Stack exception, i.e.
-    attempting to store from an empty register.
-   */
-
-  if ( st0_tag != TAG_Empty )
-    {
-      RE_ENTRANT_CHECK_OFF;
-      FPU_access_ok(VERIFY_WRITE, d, 10);
-
-      FPU_put_user(st0_ptr->sigl, (unsigned long __user *) d);
-      FPU_put_user(st0_ptr->sigh, (unsigned long __user *) ((u_char __user *)d + 4));
-      FPU_put_user(exponent16(st0_ptr), (unsigned short __user *) ((u_char __user *)d + 8));
-      RE_ENTRANT_CHECK_ON;
-
-      return 1;
-    }
-
-  /* Empty register (stack underflow) */
-  EXCEPTION(EX_StackUnder);
-  if ( control_word & CW_Invalid )
-    {
-      /* The masked response */
-      /* Put out the QNaN indefinite */
-      RE_ENTRANT_CHECK_OFF;
-      FPU_access_ok(VERIFY_WRITE,d,10);
-      FPU_put_user(0, (unsigned long __user *) d);
-      FPU_put_user(0xc0000000, 1 + (unsigned long __user *) d);
-      FPU_put_user(0xffff, 4 + (short __user *) d);
-      RE_ENTRANT_CHECK_ON;
-      return 1;
-    }
-  else
-    return 0;
+	/*
+	   The only exception raised by an attempt to store to an
+	   extended format is the Invalid Stack exception, i.e.
+	   attempting to store from an empty register.
+	 */
+
+	if (st0_tag != TAG_Empty) {
+		RE_ENTRANT_CHECK_OFF;
+		FPU_access_ok(VERIFY_WRITE, d, 10);
+
+		FPU_put_user(st0_ptr->sigl, (unsigned long __user *)d);
+		FPU_put_user(st0_ptr->sigh,
+			     (unsigned long __user *)((u_char __user *) d + 4));
+		FPU_put_user(exponent16(st0_ptr),
+			     (unsigned short __user *)((u_char __user *) d +
+						       8));
+		RE_ENTRANT_CHECK_ON;
+
+		return 1;
+	}
 
-}
+	/* Empty register (stack underflow) */
+	EXCEPTION(EX_StackUnder);
+	if (control_word & CW_Invalid) {
+		/* The masked response */
+		/* Put out the QNaN indefinite */
+		RE_ENTRANT_CHECK_OFF;
+		FPU_access_ok(VERIFY_WRITE, d, 10);
+		FPU_put_user(0, (unsigned long __user *)d);
+		FPU_put_user(0xc0000000, 1 + (unsigned long __user *)d);
+		FPU_put_user(0xffff, 4 + (short __user *)d);
+		RE_ENTRANT_CHECK_ON;
+		return 1;
+	} else
+		return 0;
 
+}
 
 /* Put a double into user memory */
-int FPU_store_double(FPU_REG *st0_ptr, u_char st0_tag, double __user *dfloat)
+int FPU_store_double(FPU_REG * st0_ptr, u_char st0_tag, double __user * dfloat)
 {
-  unsigned long l[2];
-  unsigned long increment = 0;	/* avoid gcc warnings */
-  int precision_loss;
-  int exp;
-  FPU_REG tmp;
+	unsigned long l[2];
+	unsigned long increment = 0;	/* avoid gcc warnings */
+	int precision_loss;
+	int exp;
+	FPU_REG tmp;
 
-  if ( st0_tag == TAG_Valid )
-    {
-      reg_copy(st0_ptr, &tmp);
-      exp = exponent(&tmp);
+	if (st0_tag == TAG_Valid) {
+		reg_copy(st0_ptr, &tmp);
+		exp = exponent(&tmp);
 
-      if ( exp < DOUBLE_Emin )     /* It may be a denormal */
-	{
-	  addexponent(&tmp, -DOUBLE_Emin + 52);  /* largest exp to be 51 */
+		if (exp < DOUBLE_Emin) {	/* It may be a denormal */
+			addexponent(&tmp, -DOUBLE_Emin + 52);	/* largest exp to be 51 */
 
-	denormal_arg:
+		      denormal_arg:
 
-	  if ( (precision_loss = FPU_round_to_int(&tmp, st0_tag)) )
-	    {
+			if ((precision_loss = FPU_round_to_int(&tmp, st0_tag))) {
 #ifdef PECULIAR_486
-	      /* Did it round to a non-denormal ? */
-	      /* This behaviour might be regarded as peculiar, it appears
-		 that the 80486 rounds to the dest precision, then
-		 converts to decide underflow. */
-	      if ( !((tmp.sigh == 0x00100000) && (tmp.sigl == 0) &&
-		  (st0_ptr->sigl & 0x000007ff)) )
+				/* Did it round to a non-denormal ? */
+				/* This behaviour might be regarded as peculiar, it appears
+				   that the 80486 rounds to the dest precision, then
+				   converts to decide underflow. */
+				if (!
+				    ((tmp.sigh == 0x00100000) && (tmp.sigl == 0)
+				     && (st0_ptr->sigl & 0x000007ff)))
 #endif /* PECULIAR_486 */
-		{
-		  EXCEPTION(EX_Underflow);
-		  /* This is a special case: see sec 16.2.5.1 of
-		     the 80486 book */
-		  if ( !(control_word & CW_Underflow) )
-		    return 0;
-		}
-	      EXCEPTION(precision_loss);
-	      if ( !(control_word & CW_Precision) )
-		return 0;
-	    }
-	  l[0] = tmp.sigl;
-	  l[1] = tmp.sigh;
-	}
-      else
-	{
-	  if ( tmp.sigl & 0x000007ff )
-	    {
-	      precision_loss = 1;
-	      switch (control_word & CW_RC)
-		{
-		case RC_RND:
-		  /* Rounding can get a little messy.. */
-		  increment = ((tmp.sigl & 0x7ff) > 0x400) |  /* nearest */
-		    ((tmp.sigl & 0xc00) == 0xc00);            /* odd -> even */
-		  break;
-		case RC_DOWN:   /* towards -infinity */
-		  increment = signpositive(&tmp) ? 0 : tmp.sigl & 0x7ff;
-		  break;
-		case RC_UP:     /* towards +infinity */
-		  increment = signpositive(&tmp) ? tmp.sigl & 0x7ff : 0;
-		  break;
-		case RC_CHOP:
-		  increment = 0;
-		  break;
-		}
-	  
-	      /* Truncate the mantissa */
-	      tmp.sigl &= 0xfffff800;
-	  
-	      if ( increment )
-		{
-		  if ( tmp.sigl >= 0xfffff800 )
-		    {
-		      /* the sigl part overflows */
-		      if ( tmp.sigh == 0xffffffff )
-			{
-			  /* The sigh part overflows */
-			  tmp.sigh = 0x80000000;
-			  exp++;
-			  if (exp >= EXP_OVER)
-			    goto overflow;
+				{
+					EXCEPTION(EX_Underflow);
+					/* This is a special case: see sec 16.2.5.1 of
+					   the 80486 book */
+					if (!(control_word & CW_Underflow))
+						return 0;
+				}
+				EXCEPTION(precision_loss);
+				if (!(control_word & CW_Precision))
+					return 0;
 			}
-		      else
-			{
-			  tmp.sigh ++;
+			l[0] = tmp.sigl;
+			l[1] = tmp.sigh;
+		} else {
+			if (tmp.sigl & 0x000007ff) {
+				precision_loss = 1;
+				switch (control_word & CW_RC) {
+				case RC_RND:
+					/* Rounding can get a little messy.. */
+					increment = ((tmp.sigl & 0x7ff) > 0x400) |	/* nearest */
+					    ((tmp.sigl & 0xc00) == 0xc00);	/* odd -> even */
+					break;
+				case RC_DOWN:	/* towards -infinity */
+					increment =
+					    signpositive(&tmp) ? 0 : tmp.
+					    sigl & 0x7ff;
+					break;
+				case RC_UP:	/* towards +infinity */
+					increment =
+					    signpositive(&tmp) ? tmp.
+					    sigl & 0x7ff : 0;
+					break;
+				case RC_CHOP:
+					increment = 0;
+					break;
+				}
+
+				/* Truncate the mantissa */
+				tmp.sigl &= 0xfffff800;
+
+				if (increment) {
+					if (tmp.sigl >= 0xfffff800) {
+						/* the sigl part overflows */
+						if (tmp.sigh == 0xffffffff) {
+							/* The sigh part overflows */
+							tmp.sigh = 0x80000000;
+							exp++;
+							if (exp >= EXP_OVER)
+								goto overflow;
+						} else {
+							tmp.sigh++;
+						}
+						tmp.sigl = 0x00000000;
+					} else {
+						/* We only need to increment sigl */
+						tmp.sigl += 0x00000800;
+					}
+				}
+			} else
+				precision_loss = 0;
+
+			l[0] = (tmp.sigl >> 11) | (tmp.sigh << 21);
+			l[1] = ((tmp.sigh >> 11) & 0xfffff);
+
+			if (exp > DOUBLE_Emax) {
+			      overflow:
+				EXCEPTION(EX_Overflow);
+				if (!(control_word & CW_Overflow))
+					return 0;
+				set_precision_flag_up();
+				if (!(control_word & CW_Precision))
+					return 0;
+
+				/* This is a special case: see sec 16.2.5.1 of the 80486 book */
+				/* Overflow to infinity */
+				l[0] = 0x00000000;	/* Set to */
+				l[1] = 0x7ff00000;	/* + INF */
+			} else {
+				if (precision_loss) {
+					if (increment)
+						set_precision_flag_up();
+					else
+						set_precision_flag_down();
+				}
+				/* Add the exponent */
+				l[1] |= (((exp + DOUBLE_Ebias) & 0x7ff) << 20);
 			}
-		      tmp.sigl = 0x00000000;
-		    }
-		  else
-		    {
-		      /* We only need to increment sigl */
-		      tmp.sigl += 0x00000800;
-		    }
-		}
-	    }
-	  else
-	    precision_loss = 0;
-	  
-	  l[0] = (tmp.sigl >> 11) | (tmp.sigh << 21);
-	  l[1] = ((tmp.sigh >> 11) & 0xfffff);
-
-	  if ( exp > DOUBLE_Emax )
-	    {
-	    overflow:
-	      EXCEPTION(EX_Overflow);
-	      if ( !(control_word & CW_Overflow) )
-		return 0;
-	      set_precision_flag_up();
-	      if ( !(control_word & CW_Precision) )
-		return 0;
-
-	      /* This is a special case: see sec 16.2.5.1 of the 80486 book */
-	      /* Overflow to infinity */
-	      l[0] = 0x00000000;	/* Set to */
-	      l[1] = 0x7ff00000;	/* + INF */
-	    }
-	  else
-	    {
-	      if ( precision_loss )
-		{
-		  if ( increment )
-		    set_precision_flag_up();
-		  else
-		    set_precision_flag_down();
 		}
-	      /* Add the exponent */
-	      l[1] |= (((exp+DOUBLE_Ebias) & 0x7ff) << 20);
-	    }
-	}
-    }
-  else if (st0_tag == TAG_Zero)
-    {
-      /* Number is zero */
-      l[0] = 0;
-      l[1] = 0;
-    }
-  else if ( st0_tag == TAG_Special )
-    {
-      st0_tag = FPU_Special(st0_ptr);
-      if ( st0_tag == TW_Denormal )
-	{
-	  /* A denormal will always underflow. */
+	} else if (st0_tag == TAG_Zero) {
+		/* Number is zero */
+		l[0] = 0;
+		l[1] = 0;
+	} else if (st0_tag == TAG_Special) {
+		st0_tag = FPU_Special(st0_ptr);
+		if (st0_tag == TW_Denormal) {
+			/* A denormal will always underflow. */
 #ifndef PECULIAR_486
-	  /* An 80486 is supposed to be able to generate
-	     a denormal exception here, but... */
-	  /* Underflow has priority. */
-	  if ( control_word & CW_Underflow )
-	    denormal_operand();
+			/* An 80486 is supposed to be able to generate
+			   a denormal exception here, but... */
+			/* Underflow has priority. */
+			if (control_word & CW_Underflow)
+				denormal_operand();
 #endif /* PECULIAR_486 */
-	  reg_copy(st0_ptr, &tmp);
-	  goto denormal_arg;
-	}
-      else if (st0_tag == TW_Infinity)
-	{
-	  l[0] = 0;
-	  l[1] = 0x7ff00000;
-	}
-      else if (st0_tag == TW_NaN)
-	{
-	  /* Is it really a NaN ? */
-	  if ( (exponent(st0_ptr) == EXP_OVER)
-	       && (st0_ptr->sigh & 0x80000000) )
-	    {
-	      /* See if we can get a valid NaN from the FPU_REG */
-	      l[0] = (st0_ptr->sigl >> 11) | (st0_ptr->sigh << 21);
-	      l[1] = ((st0_ptr->sigh >> 11) & 0xfffff);
-	      if ( !(st0_ptr->sigh & 0x40000000) )
-		{
-		  /* It is a signalling NaN */
-		  EXCEPTION(EX_Invalid);
-		  if ( !(control_word & CW_Invalid) )
-		    return 0;
-		  l[1] |= (0x40000000 >> 11);
+			reg_copy(st0_ptr, &tmp);
+			goto denormal_arg;
+		} else if (st0_tag == TW_Infinity) {
+			l[0] = 0;
+			l[1] = 0x7ff00000;
+		} else if (st0_tag == TW_NaN) {
+			/* Is it really a NaN ? */
+			if ((exponent(st0_ptr) == EXP_OVER)
+			    && (st0_ptr->sigh & 0x80000000)) {
+				/* See if we can get a valid NaN from the FPU_REG */
+				l[0] =
+				    (st0_ptr->sigl >> 11) | (st0_ptr->
+							     sigh << 21);
+				l[1] = ((st0_ptr->sigh >> 11) & 0xfffff);
+				if (!(st0_ptr->sigh & 0x40000000)) {
+					/* It is a signalling NaN */
+					EXCEPTION(EX_Invalid);
+					if (!(control_word & CW_Invalid))
+						return 0;
+					l[1] |= (0x40000000 >> 11);
+				}
+				l[1] |= 0x7ff00000;
+			} else {
+				/* It is an unsupported data type */
+				EXCEPTION(EX_Invalid);
+				if (!(control_word & CW_Invalid))
+					return 0;
+				l[0] = 0;
+				l[1] = 0xfff80000;
+			}
 		}
-	      l[1] |= 0x7ff00000;
-	    }
-	  else
-	    {
-	      /* It is an unsupported data type */
-	      EXCEPTION(EX_Invalid);
-	      if ( !(control_word & CW_Invalid) )
-		return 0;
-	      l[0] = 0;
-	      l[1] = 0xfff80000;
-	    }
+	} else if (st0_tag == TAG_Empty) {
+		/* Empty register (stack underflow) */
+		EXCEPTION(EX_StackUnder);
+		if (control_word & CW_Invalid) {
+			/* The masked response */
+			/* Put out the QNaN indefinite */
+			RE_ENTRANT_CHECK_OFF;
+			FPU_access_ok(VERIFY_WRITE, dfloat, 8);
+			FPU_put_user(0, (unsigned long __user *)dfloat);
+			FPU_put_user(0xfff80000,
+				     1 + (unsigned long __user *)dfloat);
+			RE_ENTRANT_CHECK_ON;
+			return 1;
+		} else
+			return 0;
 	}
-    }
-  else if ( st0_tag == TAG_Empty )
-    {
-      /* Empty register (stack underflow) */
-      EXCEPTION(EX_StackUnder);
-      if ( control_word & CW_Invalid )
-	{
-	  /* The masked response */
-	  /* Put out the QNaN indefinite */
-	  RE_ENTRANT_CHECK_OFF;
-	  FPU_access_ok(VERIFY_WRITE,dfloat,8);
-	  FPU_put_user(0, (unsigned long __user *) dfloat);
-	  FPU_put_user(0xfff80000, 1 + (unsigned long __user *) dfloat);
-	  RE_ENTRANT_CHECK_ON;
-	  return 1;
-	}
-      else
-	return 0;
-    }
-  if ( getsign(st0_ptr) )
-    l[1] |= 0x80000000;
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_WRITE,dfloat,8);
-  FPU_put_user(l[0], (unsigned long __user *)dfloat);
-  FPU_put_user(l[1], 1 + (unsigned long __user *)dfloat);
-  RE_ENTRANT_CHECK_ON;
-
-  return 1;
-}
+	if (getsign(st0_ptr))
+		l[1] |= 0x80000000;
 
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_WRITE, dfloat, 8);
+	FPU_put_user(l[0], (unsigned long __user *)dfloat);
+	FPU_put_user(l[1], 1 + (unsigned long __user *)dfloat);
+	RE_ENTRANT_CHECK_ON;
+
+	return 1;
+}
 
 /* Put a float into user memory */
-int FPU_store_single(FPU_REG *st0_ptr, u_char st0_tag, float __user *single)
+int FPU_store_single(FPU_REG * st0_ptr, u_char st0_tag, float __user * single)
 {
-  long templ = 0;
-  unsigned long increment = 0;     	/* avoid gcc warnings */
-  int precision_loss;
-  int exp;
-  FPU_REG tmp;
+	long templ = 0;
+	unsigned long increment = 0;	/* avoid gcc warnings */
+	int precision_loss;
+	int exp;
+	FPU_REG tmp;
 
-  if ( st0_tag == TAG_Valid )
-    {
+	if (st0_tag == TAG_Valid) {
 
-      reg_copy(st0_ptr, &tmp);
-      exp = exponent(&tmp);
+		reg_copy(st0_ptr, &tmp);
+		exp = exponent(&tmp);
 
-      if ( exp < SINGLE_Emin )
-	{
-	  addexponent(&tmp, -SINGLE_Emin + 23);  /* largest exp to be 22 */
+		if (exp < SINGLE_Emin) {
+			addexponent(&tmp, -SINGLE_Emin + 23);	/* largest exp to be 22 */
 
-	denormal_arg:
+		      denormal_arg:
 
-	  if ( (precision_loss = FPU_round_to_int(&tmp, st0_tag)) )
-	    {
+			if ((precision_loss = FPU_round_to_int(&tmp, st0_tag))) {
 #ifdef PECULIAR_486
-	      /* Did it round to a non-denormal ? */
-	      /* This behaviour might be regarded as peculiar, it appears
-		 that the 80486 rounds to the dest precision, then
-		 converts to decide underflow. */
-	      if ( !((tmp.sigl == 0x00800000) &&
-		  ((st0_ptr->sigh & 0x000000ff) || st0_ptr->sigl)) )
+				/* Did it round to a non-denormal ? */
+				/* This behaviour might be regarded as peculiar, it appears
+				   that the 80486 rounds to the dest precision, then
+				   converts to decide underflow. */
+				if (!((tmp.sigl == 0x00800000) &&
+				      ((st0_ptr->sigh & 0x000000ff)
+				       || st0_ptr->sigl)))
 #endif /* PECULIAR_486 */
-		{
-		  EXCEPTION(EX_Underflow);
-		  /* This is a special case: see sec 16.2.5.1 of
-		     the 80486 book */
-		  if ( !(control_word & CW_Underflow) )
-		    return 0;
-		}
-	      EXCEPTION(precision_loss);
-	      if ( !(control_word & CW_Precision) )
-		return 0;
-	    }
-	  templ = tmp.sigl;
-      }
-      else
-	{
-	  if ( tmp.sigl | (tmp.sigh & 0x000000ff) )
-	    {
-	      unsigned long sigh = tmp.sigh;
-	      unsigned long sigl = tmp.sigl;
-	      
-	      precision_loss = 1;
-	      switch (control_word & CW_RC)
-		{
-		case RC_RND:
-		  increment = ((sigh & 0xff) > 0x80)       /* more than half */
-		    || (((sigh & 0xff) == 0x80) && sigl)   /* more than half */
-		    || ((sigh & 0x180) == 0x180);        /* round to even */
-		  break;
-		case RC_DOWN:   /* towards -infinity */
-		  increment = signpositive(&tmp)
-		    ? 0 : (sigl | (sigh & 0xff));
-		  break;
-		case RC_UP:     /* towards +infinity */
-		  increment = signpositive(&tmp)
-		    ? (sigl | (sigh & 0xff)) : 0;
-		  break;
-		case RC_CHOP:
-		  increment = 0;
-		  break;
-		}
-	  
-	      /* Truncate part of the mantissa */
-	      tmp.sigl = 0;
-	  
-	      if (increment)
-		{
-		  if ( sigh >= 0xffffff00 )
-		    {
-		      /* The sigh part overflows */
-		      tmp.sigh = 0x80000000;
-		      exp++;
-		      if ( exp >= EXP_OVER )
-			goto overflow;
-		    }
-		  else
-		    {
-		      tmp.sigh &= 0xffffff00;
-		      tmp.sigh += 0x100;
-		    }
-		}
-	      else
-		{
-		  tmp.sigh &= 0xffffff00;  /* Finish the truncation */
-		}
-	    }
-	  else
-	    precision_loss = 0;
-      
-	  templ = (tmp.sigh >> 8) & 0x007fffff;
-
-	  if ( exp > SINGLE_Emax )
-	    {
-	    overflow:
-	      EXCEPTION(EX_Overflow);
-	      if ( !(control_word & CW_Overflow) )
-		return 0;
-	      set_precision_flag_up();
-	      if ( !(control_word & CW_Precision) )
-		return 0;
-
-	      /* This is a special case: see sec 16.2.5.1 of the 80486 book. */
-	      /* Masked response is overflow to infinity. */
-	      templ = 0x7f800000;
-	    }
-	  else
-	    {
-	      if ( precision_loss )
-		{
-		  if ( increment )
-		    set_precision_flag_up();
-		  else
-		    set_precision_flag_down();
+				{
+					EXCEPTION(EX_Underflow);
+					/* This is a special case: see sec 16.2.5.1 of
+					   the 80486 book */
+					if (!(control_word & CW_Underflow))
+						return 0;
+				}
+				EXCEPTION(precision_loss);
+				if (!(control_word & CW_Precision))
+					return 0;
+			}
+			templ = tmp.sigl;
+		} else {
+			if (tmp.sigl | (tmp.sigh & 0x000000ff)) {
+				unsigned long sigh = tmp.sigh;
+				unsigned long sigl = tmp.sigl;
+
+				precision_loss = 1;
+				switch (control_word & CW_RC) {
+				case RC_RND:
+					increment = ((sigh & 0xff) > 0x80)	/* more than half */
+					    ||(((sigh & 0xff) == 0x80) && sigl)	/* more than half */
+					    ||((sigh & 0x180) == 0x180);	/* round to even */
+					break;
+				case RC_DOWN:	/* towards -infinity */
+					increment = signpositive(&tmp)
+					    ? 0 : (sigl | (sigh & 0xff));
+					break;
+				case RC_UP:	/* towards +infinity */
+					increment = signpositive(&tmp)
+					    ? (sigl | (sigh & 0xff)) : 0;
+					break;
+				case RC_CHOP:
+					increment = 0;
+					break;
+				}
+
+				/* Truncate part of the mantissa */
+				tmp.sigl = 0;
+
+				if (increment) {
+					if (sigh >= 0xffffff00) {
+						/* The sigh part overflows */
+						tmp.sigh = 0x80000000;
+						exp++;
+						if (exp >= EXP_OVER)
+							goto overflow;
+					} else {
+						tmp.sigh &= 0xffffff00;
+						tmp.sigh += 0x100;
+					}
+				} else {
+					tmp.sigh &= 0xffffff00;	/* Finish the truncation */
+				}
+			} else
+				precision_loss = 0;
+
+			templ = (tmp.sigh >> 8) & 0x007fffff;
+
+			if (exp > SINGLE_Emax) {
+			      overflow:
+				EXCEPTION(EX_Overflow);
+				if (!(control_word & CW_Overflow))
+					return 0;
+				set_precision_flag_up();
+				if (!(control_word & CW_Precision))
+					return 0;
+
+				/* This is a special case: see sec 16.2.5.1 of the 80486 book. */
+				/* Masked response is overflow to infinity. */
+				templ = 0x7f800000;
+			} else {
+				if (precision_loss) {
+					if (increment)
+						set_precision_flag_up();
+					else
+						set_precision_flag_down();
+				}
+				/* Add the exponent */
+				templ |= ((exp + SINGLE_Ebias) & 0xff) << 23;
+			}
 		}
-	      /* Add the exponent */
-	      templ |= ((exp+SINGLE_Ebias) & 0xff) << 23;
-	    }
-	}
-    }
-  else if (st0_tag == TAG_Zero)
-    {
-      templ = 0;
-    }
-  else if ( st0_tag == TAG_Special )
-    {
-      st0_tag = FPU_Special(st0_ptr);
-      if (st0_tag == TW_Denormal)
-	{
-	  reg_copy(st0_ptr, &tmp);
-
-	  /* A denormal will always underflow. */
+	} else if (st0_tag == TAG_Zero) {
+		templ = 0;
+	} else if (st0_tag == TAG_Special) {
+		st0_tag = FPU_Special(st0_ptr);
+		if (st0_tag == TW_Denormal) {
+			reg_copy(st0_ptr, &tmp);
+
+			/* A denormal will always underflow. */
 #ifndef PECULIAR_486
-	  /* An 80486 is supposed to be able to generate
-	     a denormal exception here, but... */
-	  /* Underflow has priority. */
-	  if ( control_word & CW_Underflow )
-	    denormal_operand();
-#endif /* PECULIAR_486 */ 
-	  goto denormal_arg;
-	}
-      else if (st0_tag == TW_Infinity)
-	{
-	  templ = 0x7f800000;
-	}
-      else if (st0_tag == TW_NaN)
-	{
-	  /* Is it really a NaN ? */
-	  if ( (exponent(st0_ptr) == EXP_OVER) && (st0_ptr->sigh & 0x80000000) )
-	    {
-	      /* See if we can get a valid NaN from the FPU_REG */
-	      templ = st0_ptr->sigh >> 8;
-	      if ( !(st0_ptr->sigh & 0x40000000) )
-		{
-		  /* It is a signalling NaN */
-		  EXCEPTION(EX_Invalid);
-		  if ( !(control_word & CW_Invalid) )
-		    return 0;
-		  templ |= (0x40000000 >> 8);
+			/* An 80486 is supposed to be able to generate
+			   a denormal exception here, but... */
+			/* Underflow has priority. */
+			if (control_word & CW_Underflow)
+				denormal_operand();
+#endif /* PECULIAR_486 */
+			goto denormal_arg;
+		} else if (st0_tag == TW_Infinity) {
+			templ = 0x7f800000;
+		} else if (st0_tag == TW_NaN) {
+			/* Is it really a NaN ? */
+			if ((exponent(st0_ptr) == EXP_OVER)
+			    && (st0_ptr->sigh & 0x80000000)) {
+				/* See if we can get a valid NaN from the FPU_REG */
+				templ = st0_ptr->sigh >> 8;
+				if (!(st0_ptr->sigh & 0x40000000)) {
+					/* It is a signalling NaN */
+					EXCEPTION(EX_Invalid);
+					if (!(control_word & CW_Invalid))
+						return 0;
+					templ |= (0x40000000 >> 8);
+				}
+				templ |= 0x7f800000;
+			} else {
+				/* It is an unsupported data type */
+				EXCEPTION(EX_Invalid);
+				if (!(control_word & CW_Invalid))
+					return 0;
+				templ = 0xffc00000;
+			}
 		}
-	      templ |= 0x7f800000;
-	    }
-	  else
-	    {
-	      /* It is an unsupported data type */
-	      EXCEPTION(EX_Invalid);
-	      if ( !(control_word & CW_Invalid) )
-		return 0;
-	      templ = 0xffc00000;
-	    }
-	}
 #ifdef PARANOID
-      else
-	{
-	  EXCEPTION(EX_INTERNAL|0x164);
-	  return 0;
-	}
+		else {
+			EXCEPTION(EX_INTERNAL | 0x164);
+			return 0;
+		}
 #endif
-    }
-  else if ( st0_tag == TAG_Empty )
-    {
-      /* Empty register (stack underflow) */
-      EXCEPTION(EX_StackUnder);
-      if ( control_word & EX_Invalid )
-	{
-	  /* The masked response */
-	  /* Put out the QNaN indefinite */
-	  RE_ENTRANT_CHECK_OFF;
-	  FPU_access_ok(VERIFY_WRITE,single,4);
-	  FPU_put_user(0xffc00000, (unsigned long __user *) single);
-	  RE_ENTRANT_CHECK_ON;
-	  return 1;
+	} else if (st0_tag == TAG_Empty) {
+		/* Empty register (stack underflow) */
+		EXCEPTION(EX_StackUnder);
+		if (control_word & EX_Invalid) {
+			/* The masked response */
+			/* Put out the QNaN indefinite */
+			RE_ENTRANT_CHECK_OFF;
+			FPU_access_ok(VERIFY_WRITE, single, 4);
+			FPU_put_user(0xffc00000,
+				     (unsigned long __user *)single);
+			RE_ENTRANT_CHECK_ON;
+			return 1;
+		} else
+			return 0;
 	}
-      else
-	return 0;
-    }
 #ifdef PARANOID
-  else
-    {
-      EXCEPTION(EX_INTERNAL|0x163);
-      return 0;
-    }
+	else {
+		EXCEPTION(EX_INTERNAL | 0x163);
+		return 0;
+	}
 #endif
-  if ( getsign(st0_ptr) )
-    templ |= 0x80000000;
+	if (getsign(st0_ptr))
+		templ |= 0x80000000;
 
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_WRITE,single,4);
-  FPU_put_user(templ,(unsigned long __user *) single);
-  RE_ENTRANT_CHECK_ON;
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_WRITE, single, 4);
+	FPU_put_user(templ, (unsigned long __user *)single);
+	RE_ENTRANT_CHECK_ON;
 
-  return 1;
+	return 1;
 }
 
-
 /* Put a long long into user memory */
-int FPU_store_int64(FPU_REG *st0_ptr, u_char st0_tag, long long __user *d)
+int FPU_store_int64(FPU_REG * st0_ptr, u_char st0_tag, long long __user * d)
 {
-  FPU_REG t;
-  long long tll;
-  int precision_loss;
-
-  if ( st0_tag == TAG_Empty )
-    {
-      /* Empty register (stack underflow) */
-      EXCEPTION(EX_StackUnder);
-      goto invalid_operand;
-    }
-  else if ( st0_tag == TAG_Special )
-    {
-      st0_tag = FPU_Special(st0_ptr);
-      if ( (st0_tag == TW_Infinity) ||
-	   (st0_tag == TW_NaN) )
-	{
-	  EXCEPTION(EX_Invalid);
-	  goto invalid_operand;
+	FPU_REG t;
+	long long tll;
+	int precision_loss;
+
+	if (st0_tag == TAG_Empty) {
+		/* Empty register (stack underflow) */
+		EXCEPTION(EX_StackUnder);
+		goto invalid_operand;
+	} else if (st0_tag == TAG_Special) {
+		st0_tag = FPU_Special(st0_ptr);
+		if ((st0_tag == TW_Infinity) || (st0_tag == TW_NaN)) {
+			EXCEPTION(EX_Invalid);
+			goto invalid_operand;
+		}
 	}
-    }
-
-  reg_copy(st0_ptr, &t);
-  precision_loss = FPU_round_to_int(&t, st0_tag);
-  ((long *)&tll)[0] = t.sigl;
-  ((long *)&tll)[1] = t.sigh;
-  if ( (precision_loss == 1) ||
-      ((t.sigh & 0x80000000) &&
-       !((t.sigh == 0x80000000) && (t.sigl == 0) &&
-	 signnegative(&t))) )
-    {
-      EXCEPTION(EX_Invalid);
-      /* This is a special case: see sec 16.2.5.1 of the 80486 book */
-    invalid_operand:
-      if ( control_word & EX_Invalid )
-	{
-	  /* Produce something like QNaN "indefinite" */
-	  tll = 0x8000000000000000LL;
+
+	reg_copy(st0_ptr, &t);
+	precision_loss = FPU_round_to_int(&t, st0_tag);
+	((long *)&tll)[0] = t.sigl;
+	((long *)&tll)[1] = t.sigh;
+	if ((precision_loss == 1) ||
+	    ((t.sigh & 0x80000000) &&
+	     !((t.sigh == 0x80000000) && (t.sigl == 0) && signnegative(&t)))) {
+		EXCEPTION(EX_Invalid);
+		/* This is a special case: see sec 16.2.5.1 of the 80486 book */
+	      invalid_operand:
+		if (control_word & EX_Invalid) {
+			/* Produce something like QNaN "indefinite" */
+			tll = 0x8000000000000000LL;
+		} else
+			return 0;
+	} else {
+		if (precision_loss)
+			set_precision_flag(precision_loss);
+		if (signnegative(&t))
+			tll = -tll;
 	}
-      else
-	return 0;
-    }
-  else
-    {
-      if ( precision_loss )
-	set_precision_flag(precision_loss);
-      if ( signnegative(&t) )
-	tll = - tll;
-    }
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_WRITE,d,8);
-  if (copy_to_user(d, &tll, 8))
-    FPU_abort;
-  RE_ENTRANT_CHECK_ON;
-
-  return 1;
-}
 
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_WRITE, d, 8);
+	if (copy_to_user(d, &tll, 8))
+		FPU_abort;
+	RE_ENTRANT_CHECK_ON;
+
+	return 1;
+}
 
 /* Put a long into user memory */
-int FPU_store_int32(FPU_REG *st0_ptr, u_char st0_tag, long __user *d)
+int FPU_store_int32(FPU_REG * st0_ptr, u_char st0_tag, long __user * d)
 {
-  FPU_REG t;
-  int precision_loss;
-
-  if ( st0_tag == TAG_Empty )
-    {
-      /* Empty register (stack underflow) */
-      EXCEPTION(EX_StackUnder);
-      goto invalid_operand;
-    }
-  else if ( st0_tag == TAG_Special )
-    {
-      st0_tag = FPU_Special(st0_ptr);
-      if ( (st0_tag == TW_Infinity) ||
-	   (st0_tag == TW_NaN) )
-	{
-	  EXCEPTION(EX_Invalid);
-	  goto invalid_operand;
+	FPU_REG t;
+	int precision_loss;
+
+	if (st0_tag == TAG_Empty) {
+		/* Empty register (stack underflow) */
+		EXCEPTION(EX_StackUnder);
+		goto invalid_operand;
+	} else if (st0_tag == TAG_Special) {
+		st0_tag = FPU_Special(st0_ptr);
+		if ((st0_tag == TW_Infinity) || (st0_tag == TW_NaN)) {
+			EXCEPTION(EX_Invalid);
+			goto invalid_operand;
+		}
 	}
-    }
-
-  reg_copy(st0_ptr, &t);
-  precision_loss = FPU_round_to_int(&t, st0_tag);
-  if (t.sigh ||
-      ((t.sigl & 0x80000000) &&
-       !((t.sigl == 0x80000000) && signnegative(&t))) )
-    {
-      EXCEPTION(EX_Invalid);
-      /* This is a special case: see sec 16.2.5.1 of the 80486 book */
-    invalid_operand:
-      if ( control_word & EX_Invalid )
-	{
-	  /* Produce something like QNaN "indefinite" */
-	  t.sigl = 0x80000000;
+
+	reg_copy(st0_ptr, &t);
+	precision_loss = FPU_round_to_int(&t, st0_tag);
+	if (t.sigh ||
+	    ((t.sigl & 0x80000000) &&
+	     !((t.sigl == 0x80000000) && signnegative(&t)))) {
+		EXCEPTION(EX_Invalid);
+		/* This is a special case: see sec 16.2.5.1 of the 80486 book */
+	      invalid_operand:
+		if (control_word & EX_Invalid) {
+			/* Produce something like QNaN "indefinite" */
+			t.sigl = 0x80000000;
+		} else
+			return 0;
+	} else {
+		if (precision_loss)
+			set_precision_flag(precision_loss);
+		if (signnegative(&t))
+			t.sigl = -(long)t.sigl;
 	}
-      else
-	return 0;
-    }
-  else
-    {
-      if ( precision_loss )
-	set_precision_flag(precision_loss);
-      if ( signnegative(&t) )
-	t.sigl = -(long)t.sigl;
-    }
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_WRITE,d,4);
-  FPU_put_user(t.sigl, (unsigned long __user *) d);
-  RE_ENTRANT_CHECK_ON;
-
-  return 1;
-}
 
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_WRITE, d, 4);
+	FPU_put_user(t.sigl, (unsigned long __user *)d);
+	RE_ENTRANT_CHECK_ON;
+
+	return 1;
+}
 
 /* Put a short into user memory */
-int FPU_store_int16(FPU_REG *st0_ptr, u_char st0_tag, short __user *d)
+int FPU_store_int16(FPU_REG * st0_ptr, u_char st0_tag, short __user * d)
 {
-  FPU_REG t;
-  int precision_loss;
-
-  if ( st0_tag == TAG_Empty )
-    {
-      /* Empty register (stack underflow) */
-      EXCEPTION(EX_StackUnder);
-      goto invalid_operand;
-    }
-  else if ( st0_tag == TAG_Special )
-    {
-      st0_tag = FPU_Special(st0_ptr);
-      if ( (st0_tag == TW_Infinity) ||
-	   (st0_tag == TW_NaN) )
-	{
-	  EXCEPTION(EX_Invalid);
-	  goto invalid_operand;
+	FPU_REG t;
+	int precision_loss;
+
+	if (st0_tag == TAG_Empty) {
+		/* Empty register (stack underflow) */
+		EXCEPTION(EX_StackUnder);
+		goto invalid_operand;
+	} else if (st0_tag == TAG_Special) {
+		st0_tag = FPU_Special(st0_ptr);
+		if ((st0_tag == TW_Infinity) || (st0_tag == TW_NaN)) {
+			EXCEPTION(EX_Invalid);
+			goto invalid_operand;
+		}
 	}
-    }
-
-  reg_copy(st0_ptr, &t);
-  precision_loss = FPU_round_to_int(&t, st0_tag);
-  if (t.sigh ||
-      ((t.sigl & 0xffff8000) &&
-       !((t.sigl == 0x8000) && signnegative(&t))) )
-    {
-      EXCEPTION(EX_Invalid);
-      /* This is a special case: see sec 16.2.5.1 of the 80486 book */
-    invalid_operand:
-      if ( control_word & EX_Invalid )
-	{
-	  /* Produce something like QNaN "indefinite" */
-	  t.sigl = 0x8000;
+
+	reg_copy(st0_ptr, &t);
+	precision_loss = FPU_round_to_int(&t, st0_tag);
+	if (t.sigh ||
+	    ((t.sigl & 0xffff8000) &&
+	     !((t.sigl == 0x8000) && signnegative(&t)))) {
+		EXCEPTION(EX_Invalid);
+		/* This is a special case: see sec 16.2.5.1 of the 80486 book */
+	      invalid_operand:
+		if (control_word & EX_Invalid) {
+			/* Produce something like QNaN "indefinite" */
+			t.sigl = 0x8000;
+		} else
+			return 0;
+	} else {
+		if (precision_loss)
+			set_precision_flag(precision_loss);
+		if (signnegative(&t))
+			t.sigl = -t.sigl;
 	}
-      else
-	return 0;
-    }
-  else
-    {
-      if ( precision_loss )
-	set_precision_flag(precision_loss);
-      if ( signnegative(&t) )
-	t.sigl = -t.sigl;
-    }
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_WRITE,d,2);
-  FPU_put_user((short)t.sigl, d);
-  RE_ENTRANT_CHECK_ON;
-
-  return 1;
-}
 
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_WRITE, d, 2);
+	FPU_put_user((short)t.sigl, d);
+	RE_ENTRANT_CHECK_ON;
+
+	return 1;
+}
 
 /* Put a packed bcd array into user memory */
-int FPU_store_bcd(FPU_REG *st0_ptr, u_char st0_tag, u_char __user *d)
+int FPU_store_bcd(FPU_REG * st0_ptr, u_char st0_tag, u_char __user * d)
 {
-  FPU_REG t;
-  unsigned long long ll;
-  u_char b;
-  int i, precision_loss;
-  u_char sign = (getsign(st0_ptr) == SIGN_NEG) ? 0x80 : 0;
-
-  if ( st0_tag == TAG_Empty )
-    {
-      /* Empty register (stack underflow) */
-      EXCEPTION(EX_StackUnder);
-      goto invalid_operand;
-    }
-  else if ( st0_tag == TAG_Special )
-    {
-      st0_tag = FPU_Special(st0_ptr);
-      if ( (st0_tag == TW_Infinity) ||
-	   (st0_tag == TW_NaN) )
-	{
-	  EXCEPTION(EX_Invalid);
-	  goto invalid_operand;
+	FPU_REG t;
+	unsigned long long ll;
+	u_char b;
+	int i, precision_loss;
+	u_char sign = (getsign(st0_ptr) == SIGN_NEG) ? 0x80 : 0;
+
+	if (st0_tag == TAG_Empty) {
+		/* Empty register (stack underflow) */
+		EXCEPTION(EX_StackUnder);
+		goto invalid_operand;
+	} else if (st0_tag == TAG_Special) {
+		st0_tag = FPU_Special(st0_ptr);
+		if ((st0_tag == TW_Infinity) || (st0_tag == TW_NaN)) {
+			EXCEPTION(EX_Invalid);
+			goto invalid_operand;
+		}
+	}
+
+	reg_copy(st0_ptr, &t);
+	precision_loss = FPU_round_to_int(&t, st0_tag);
+	ll = significand(&t);
+
+	/* Check for overflow, by comparing with 999999999999999999 decimal. */
+	if ((t.sigh > 0x0de0b6b3) ||
+	    ((t.sigh == 0x0de0b6b3) && (t.sigl > 0xa763ffff))) {
+		EXCEPTION(EX_Invalid);
+		/* This is a special case: see sec 16.2.5.1 of the 80486 book */
+	      invalid_operand:
+		if (control_word & CW_Invalid) {
+			/* Produce the QNaN "indefinite" */
+			RE_ENTRANT_CHECK_OFF;
+			FPU_access_ok(VERIFY_WRITE, d, 10);
+			for (i = 0; i < 7; i++)
+				FPU_put_user(0, d + i);	/* These bytes "undefined" */
+			FPU_put_user(0xc0, d + 7);	/* This byte "undefined" */
+			FPU_put_user(0xff, d + 8);
+			FPU_put_user(0xff, d + 9);
+			RE_ENTRANT_CHECK_ON;
+			return 1;
+		} else
+			return 0;
+	} else if (precision_loss) {
+		/* Precision loss doesn't stop the data transfer */
+		set_precision_flag(precision_loss);
 	}
-    }
-
-  reg_copy(st0_ptr, &t);
-  precision_loss = FPU_round_to_int(&t, st0_tag);
-  ll = significand(&t);
-
-  /* Check for overflow, by comparing with 999999999999999999 decimal. */
-  if ( (t.sigh > 0x0de0b6b3) ||
-      ((t.sigh == 0x0de0b6b3) && (t.sigl > 0xa763ffff)) )
-    {
-      EXCEPTION(EX_Invalid);
-      /* This is a special case: see sec 16.2.5.1 of the 80486 book */
-    invalid_operand:
-      if ( control_word & CW_Invalid )
-	{
-	  /* Produce the QNaN "indefinite" */
-	  RE_ENTRANT_CHECK_OFF;
-	  FPU_access_ok(VERIFY_WRITE,d,10);
-	  for ( i = 0; i < 7; i++)
-	    FPU_put_user(0, d+i); /* These bytes "undefined" */
-	  FPU_put_user(0xc0, d+7); /* This byte "undefined" */
-	  FPU_put_user(0xff, d+8);
-	  FPU_put_user(0xff, d+9);
-	  RE_ENTRANT_CHECK_ON;
-	  return 1;
+
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_WRITE, d, 10);
+	RE_ENTRANT_CHECK_ON;
+	for (i = 0; i < 9; i++) {
+		b = FPU_div_small(&ll, 10);
+		b |= (FPU_div_small(&ll, 10)) << 4;
+		RE_ENTRANT_CHECK_OFF;
+		FPU_put_user(b, d + i);
+		RE_ENTRANT_CHECK_ON;
 	}
-      else
-	return 0;
-    }
-  else if ( precision_loss )
-    {
-      /* Precision loss doesn't stop the data transfer */
-      set_precision_flag(precision_loss);
-    }
-
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_WRITE,d,10);
-  RE_ENTRANT_CHECK_ON;
-  for ( i = 0; i < 9; i++)
-    {
-      b = FPU_div_small(&ll, 10);
-      b |= (FPU_div_small(&ll, 10)) << 4;
-      RE_ENTRANT_CHECK_OFF;
-      FPU_put_user(b, d+i);
-      RE_ENTRANT_CHECK_ON;
-    }
-  RE_ENTRANT_CHECK_OFF;
-  FPU_put_user(sign, d+9);
-  RE_ENTRANT_CHECK_ON;
-
-  return 1;
+	RE_ENTRANT_CHECK_OFF;
+	FPU_put_user(sign, d + 9);
+	RE_ENTRANT_CHECK_ON;
+
+	return 1;
 }
 
 /*===========================================================================*/
@@ -1117,259 +971,254 @@ int FPU_store_bcd(FPU_REG *st0_ptr, u_char st0_tag, u_char __user *d)
 /* Overflow is signalled by a non-zero return value (in eax).
    In the case of overflow, the returned significand always has the
    largest possible value */
-int FPU_round_to_int(FPU_REG *r, u_char tag)
+int FPU_round_to_int(FPU_REG * r, u_char tag)
 {
-  u_char     very_big;
-  unsigned eax;
-
-  if (tag == TAG_Zero)
-    {
-      /* Make sure that zero is returned */
-      significand(r) = 0;
-      return 0;        /* o.k. */
-    }
-
-  if (exponent(r) > 63)
-    {
-      r->sigl = r->sigh = ~0;      /* The largest representable number */
-      return 1;        /* overflow */
-    }
-
-  eax = FPU_shrxs(&r->sigl, 63 - exponent(r));
-  very_big = !(~(r->sigh) | ~(r->sigl));  /* test for 0xfff...fff */
+	u_char very_big;
+	unsigned eax;
+
+	if (tag == TAG_Zero) {
+		/* Make sure that zero is returned */
+		significand(r) = 0;
+		return 0;	/* o.k. */
+	}
+
+	if (exponent(r) > 63) {
+		r->sigl = r->sigh = ~0;	/* The largest representable number */
+		return 1;	/* overflow */
+	}
+
+	eax = FPU_shrxs(&r->sigl, 63 - exponent(r));
+	very_big = !(~(r->sigh) | ~(r->sigl));	/* test for 0xfff...fff */
 #define	half_or_more	(eax & 0x80000000)
 #define	frac_part	(eax)
 #define more_than_half  ((eax & 0x80000001) == 0x80000001)
-  switch (control_word & CW_RC)
-    {
-    case RC_RND:
-      if ( more_than_half               	/* nearest */
-	  || (half_or_more && (r->sigl & 1)) )	/* odd -> even */
-	{
-	  if ( very_big ) return 1;        /* overflow */
-	  significand(r) ++;
-	  return PRECISION_LOST_UP;
-	}
-      break;
-    case RC_DOWN:
-      if (frac_part && getsign(r))
-	{
-	  if ( very_big ) return 1;        /* overflow */
-	  significand(r) ++;
-	  return PRECISION_LOST_UP;
-	}
-      break;
-    case RC_UP:
-      if (frac_part && !getsign(r))
-	{
-	  if ( very_big ) return 1;        /* overflow */
-	  significand(r) ++;
-	  return PRECISION_LOST_UP;
+	switch (control_word & CW_RC) {
+	case RC_RND:
+		if (more_than_half	/* nearest */
+		    || (half_or_more && (r->sigl & 1))) {	/* odd -> even */
+			if (very_big)
+				return 1;	/* overflow */
+			significand(r)++;
+			return PRECISION_LOST_UP;
+		}
+		break;
+	case RC_DOWN:
+		if (frac_part && getsign(r)) {
+			if (very_big)
+				return 1;	/* overflow */
+			significand(r)++;
+			return PRECISION_LOST_UP;
+		}
+		break;
+	case RC_UP:
+		if (frac_part && !getsign(r)) {
+			if (very_big)
+				return 1;	/* overflow */
+			significand(r)++;
+			return PRECISION_LOST_UP;
+		}
+		break;
+	case RC_CHOP:
+		break;
 	}
-      break;
-    case RC_CHOP:
-      break;
-    }
 
-  return eax ? PRECISION_LOST_DOWN : 0;
+	return eax ? PRECISION_LOST_DOWN : 0;
 
 }
 
 /*===========================================================================*/
 
-u_char __user *fldenv(fpu_addr_modes addr_modes, u_char __user *s)
+u_char __user *fldenv(fpu_addr_modes addr_modes, u_char __user * s)
 {
-  unsigned short tag_word = 0;
-  u_char tag;
-  int i;
-
-  if ( (addr_modes.default_mode == VM86) ||
-      ((addr_modes.default_mode == PM16)
-      ^ (addr_modes.override.operand_size == OP_SIZE_PREFIX)) )
-    {
-      RE_ENTRANT_CHECK_OFF;
-      FPU_access_ok(VERIFY_READ, s, 0x0e);
-      FPU_get_user(control_word, (unsigned short __user *) s);
-      FPU_get_user(partial_status, (unsigned short __user *) (s+2));
-      FPU_get_user(tag_word, (unsigned short __user *) (s+4));
-      FPU_get_user(instruction_address.offset, (unsigned short __user *) (s+6));
-      FPU_get_user(instruction_address.selector, (unsigned short __user *) (s+8));
-      FPU_get_user(operand_address.offset, (unsigned short __user *) (s+0x0a));
-      FPU_get_user(operand_address.selector, (unsigned short __user *) (s+0x0c));
-      RE_ENTRANT_CHECK_ON;
-      s += 0x0e;
-      if ( addr_modes.default_mode == VM86 )
-	{
-	  instruction_address.offset
-	    += (instruction_address.selector & 0xf000) << 4;
-	  operand_address.offset += (operand_address.selector & 0xf000) << 4;
+	unsigned short tag_word = 0;
+	u_char tag;
+	int i;
+
+	if ((addr_modes.default_mode == VM86) ||
+	    ((addr_modes.default_mode == PM16)
+	     ^ (addr_modes.override.operand_size == OP_SIZE_PREFIX))) {
+		RE_ENTRANT_CHECK_OFF;
+		FPU_access_ok(VERIFY_READ, s, 0x0e);
+		FPU_get_user(control_word, (unsigned short __user *)s);
+		FPU_get_user(partial_status, (unsigned short __user *)(s + 2));
+		FPU_get_user(tag_word, (unsigned short __user *)(s + 4));
+		FPU_get_user(instruction_address.offset,
+			     (unsigned short __user *)(s + 6));
+		FPU_get_user(instruction_address.selector,
+			     (unsigned short __user *)(s + 8));
+		FPU_get_user(operand_address.offset,
+			     (unsigned short __user *)(s + 0x0a));
+		FPU_get_user(operand_address.selector,
+			     (unsigned short __user *)(s + 0x0c));
+		RE_ENTRANT_CHECK_ON;
+		s += 0x0e;
+		if (addr_modes.default_mode == VM86) {
+			instruction_address.offset
+			    += (instruction_address.selector & 0xf000) << 4;
+			operand_address.offset +=
+			    (operand_address.selector & 0xf000) << 4;
+		}
+	} else {
+		RE_ENTRANT_CHECK_OFF;
+		FPU_access_ok(VERIFY_READ, s, 0x1c);
+		FPU_get_user(control_word, (unsigned short __user *)s);
+		FPU_get_user(partial_status, (unsigned short __user *)(s + 4));
+		FPU_get_user(tag_word, (unsigned short __user *)(s + 8));
+		FPU_get_user(instruction_address.offset,
+			     (unsigned long __user *)(s + 0x0c));
+		FPU_get_user(instruction_address.selector,
+			     (unsigned short __user *)(s + 0x10));
+		FPU_get_user(instruction_address.opcode,
+			     (unsigned short __user *)(s + 0x12));
+		FPU_get_user(operand_address.offset,
+			     (unsigned long __user *)(s + 0x14));
+		FPU_get_user(operand_address.selector,
+			     (unsigned long __user *)(s + 0x18));
+		RE_ENTRANT_CHECK_ON;
+		s += 0x1c;
 	}
-    }
-  else
-    {
-      RE_ENTRANT_CHECK_OFF;
-      FPU_access_ok(VERIFY_READ, s, 0x1c);
-      FPU_get_user(control_word, (unsigned short __user *) s);
-      FPU_get_user(partial_status, (unsigned short __user *) (s+4));
-      FPU_get_user(tag_word, (unsigned short __user *) (s+8));
-      FPU_get_user(instruction_address.offset, (unsigned long __user *) (s+0x0c));
-      FPU_get_user(instruction_address.selector, (unsigned short __user *) (s+0x10));
-      FPU_get_user(instruction_address.opcode, (unsigned short __user *) (s+0x12));
-      FPU_get_user(operand_address.offset, (unsigned long __user *) (s+0x14));
-      FPU_get_user(operand_address.selector, (unsigned long __user *) (s+0x18));
-      RE_ENTRANT_CHECK_ON;
-      s += 0x1c;
-    }
 
 #ifdef PECULIAR_486
-  control_word &= ~0xe080;
-#endif /* PECULIAR_486 */ 
-
-  top = (partial_status >> SW_Top_Shift) & 7;
-
-  if ( partial_status & ~control_word & CW_Exceptions )
-    partial_status |= (SW_Summary | SW_Backward);
-  else
-    partial_status &= ~(SW_Summary | SW_Backward);
-
-  for ( i = 0; i < 8; i++ )
-    {
-      tag = tag_word & 3;
-      tag_word >>= 2;
-
-      if ( tag == TAG_Empty )
-	/* New tag is empty.  Accept it */
-	FPU_settag(i, TAG_Empty);
-      else if ( FPU_gettag(i) == TAG_Empty )
-	{
-	  /* Old tag is empty and new tag is not empty.  New tag is determined
-	     by old reg contents */
-	  if ( exponent(&fpu_register(i)) == - EXTENDED_Ebias )
-	    {
-	      if ( !(fpu_register(i).sigl | fpu_register(i).sigh) )
-		FPU_settag(i, TAG_Zero);
-	      else
-		FPU_settag(i, TAG_Special);
-	    }
-	  else if ( exponent(&fpu_register(i)) == 0x7fff - EXTENDED_Ebias )
-	    {
-	      FPU_settag(i, TAG_Special);
-	    }
-	  else if ( fpu_register(i).sigh & 0x80000000 )
-	    FPU_settag(i, TAG_Valid);
-	  else
-	    FPU_settag(i, TAG_Special);   /* An Un-normal */
-  	}
-      /* Else old tag is not empty and new tag is not empty.  Old tag
-	 remains correct */
-    }
-
-  return s;
-}
+	control_word &= ~0xe080;
+#endif /* PECULIAR_486 */
+
+	top = (partial_status >> SW_Top_Shift) & 7;
+
+	if (partial_status & ~control_word & CW_Exceptions)
+		partial_status |= (SW_Summary | SW_Backward);
+	else
+		partial_status &= ~(SW_Summary | SW_Backward);
+
+	for (i = 0; i < 8; i++) {
+		tag = tag_word & 3;
+		tag_word >>= 2;
+
+		if (tag == TAG_Empty)
+			/* New tag is empty.  Accept it */
+			FPU_settag(i, TAG_Empty);
+		else if (FPU_gettag(i) == TAG_Empty) {
+			/* Old tag is empty and new tag is not empty.  New tag is determined
+			   by old reg contents */
+			if (exponent(&fpu_register(i)) == -EXTENDED_Ebias) {
+				if (!
+				    (fpu_register(i).sigl | fpu_register(i).
+				     sigh))
+					FPU_settag(i, TAG_Zero);
+				else
+					FPU_settag(i, TAG_Special);
+			} else if (exponent(&fpu_register(i)) ==
+				   0x7fff - EXTENDED_Ebias) {
+				FPU_settag(i, TAG_Special);
+			} else if (fpu_register(i).sigh & 0x80000000)
+				FPU_settag(i, TAG_Valid);
+			else
+				FPU_settag(i, TAG_Special);	/* An Un-normal */
+		}
+		/* Else old tag is not empty and new tag is not empty.  Old tag
+		   remains correct */
+	}
 
+	return s;
+}
 
-void frstor(fpu_addr_modes addr_modes, u_char __user *data_address)
+void frstor(fpu_addr_modes addr_modes, u_char __user * data_address)
 {
-  int i, regnr;
-  u_char __user *s = fldenv(addr_modes, data_address);
-  int offset = (top & 7) * 10, other = 80 - offset;
-
-  /* Copy all registers in stack order. */
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_READ,s,80);
-  __copy_from_user(register_base+offset, s, other);
-  if ( offset )
-    __copy_from_user(register_base, s+other, offset);
-  RE_ENTRANT_CHECK_ON;
-
-  for ( i = 0; i < 8; i++ )
-    {
-      regnr = (i+top) & 7;
-      if ( FPU_gettag(regnr) != TAG_Empty )
-	/* The loaded data over-rides all other cases. */
-	FPU_settag(regnr, FPU_tagof(&st(i)));
-    }
+	int i, regnr;
+	u_char __user *s = fldenv(addr_modes, data_address);
+	int offset = (top & 7) * 10, other = 80 - offset;
+
+	/* Copy all registers in stack order. */
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_READ, s, 80);
+	__copy_from_user(register_base + offset, s, other);
+	if (offset)
+		__copy_from_user(register_base, s + other, offset);
+	RE_ENTRANT_CHECK_ON;
+
+	for (i = 0; i < 8; i++) {
+		regnr = (i + top) & 7;
+		if (FPU_gettag(regnr) != TAG_Empty)
+			/* The loaded data over-rides all other cases. */
+			FPU_settag(regnr, FPU_tagof(&st(i)));
+	}
 
 }
 
-
-u_char __user *fstenv(fpu_addr_modes addr_modes, u_char __user *d)
+u_char __user *fstenv(fpu_addr_modes addr_modes, u_char __user * d)
 {
-  if ( (addr_modes.default_mode == VM86) ||
-      ((addr_modes.default_mode == PM16)
-      ^ (addr_modes.override.operand_size == OP_SIZE_PREFIX)) )
-    {
-      RE_ENTRANT_CHECK_OFF;
-      FPU_access_ok(VERIFY_WRITE,d,14);
+	if ((addr_modes.default_mode == VM86) ||
+	    ((addr_modes.default_mode == PM16)
+	     ^ (addr_modes.override.operand_size == OP_SIZE_PREFIX))) {
+		RE_ENTRANT_CHECK_OFF;
+		FPU_access_ok(VERIFY_WRITE, d, 14);
 #ifdef PECULIAR_486
-      FPU_put_user(control_word & ~0xe080, (unsigned long __user *) d);
+		FPU_put_user(control_word & ~0xe080, (unsigned long __user *)d);
 #else
-      FPU_put_user(control_word, (unsigned short __user *) d);
+		FPU_put_user(control_word, (unsigned short __user *)d);
 #endif /* PECULIAR_486 */
-      FPU_put_user(status_word(), (unsigned short __user *) (d+2));
-      FPU_put_user(fpu_tag_word, (unsigned short __user *) (d+4));
-      FPU_put_user(instruction_address.offset, (unsigned short __user *) (d+6));
-      FPU_put_user(operand_address.offset, (unsigned short __user *) (d+0x0a));
-      if ( addr_modes.default_mode == VM86 )
-	{
-	  FPU_put_user((instruction_address.offset & 0xf0000) >> 4,
-		      (unsigned short __user *) (d+8));
-	  FPU_put_user((operand_address.offset & 0xf0000) >> 4,
-		      (unsigned short __user *) (d+0x0c));
-	}
-      else
-	{
-	  FPU_put_user(instruction_address.selector, (unsigned short __user *) (d+8));
-	  FPU_put_user(operand_address.selector, (unsigned short __user *) (d+0x0c));
-	}
-      RE_ENTRANT_CHECK_ON;
-      d += 0x0e;
-    }
-  else
-    {
-      RE_ENTRANT_CHECK_OFF;
-      FPU_access_ok(VERIFY_WRITE, d, 7*4);
+		FPU_put_user(status_word(), (unsigned short __user *)(d + 2));
+		FPU_put_user(fpu_tag_word, (unsigned short __user *)(d + 4));
+		FPU_put_user(instruction_address.offset,
+			     (unsigned short __user *)(d + 6));
+		FPU_put_user(operand_address.offset,
+			     (unsigned short __user *)(d + 0x0a));
+		if (addr_modes.default_mode == VM86) {
+			FPU_put_user((instruction_address.
+				      offset & 0xf0000) >> 4,
+				     (unsigned short __user *)(d + 8));
+			FPU_put_user((operand_address.offset & 0xf0000) >> 4,
+				     (unsigned short __user *)(d + 0x0c));
+		} else {
+			FPU_put_user(instruction_address.selector,
+				     (unsigned short __user *)(d + 8));
+			FPU_put_user(operand_address.selector,
+				     (unsigned short __user *)(d + 0x0c));
+		}
+		RE_ENTRANT_CHECK_ON;
+		d += 0x0e;
+	} else {
+		RE_ENTRANT_CHECK_OFF;
+		FPU_access_ok(VERIFY_WRITE, d, 7 * 4);
 #ifdef PECULIAR_486
-      control_word &= ~0xe080;
-      /* An 80486 sets nearly all of the reserved bits to 1. */
-      control_word |= 0xffff0040;
-      partial_status = status_word() | 0xffff0000;
-      fpu_tag_word |= 0xffff0000;
-      I387.soft.fcs &= ~0xf8000000;
-      I387.soft.fos |= 0xffff0000;
+		control_word &= ~0xe080;
+		/* An 80486 sets nearly all of the reserved bits to 1. */
+		control_word |= 0xffff0040;
+		partial_status = status_word() | 0xffff0000;
+		fpu_tag_word |= 0xffff0000;
+		I387.soft.fcs &= ~0xf8000000;
+		I387.soft.fos |= 0xffff0000;
 #endif /* PECULIAR_486 */
-      if (__copy_to_user(d, &control_word, 7*4))
-	FPU_abort;
-      RE_ENTRANT_CHECK_ON;
-      d += 0x1c;
-    }
-  
-  control_word |= CW_Exceptions;
-  partial_status &= ~(SW_Summary | SW_Backward);
-
-  return d;
-}
+		if (__copy_to_user(d, &control_word, 7 * 4))
+			FPU_abort;
+		RE_ENTRANT_CHECK_ON;
+		d += 0x1c;
+	}
 
+	control_word |= CW_Exceptions;
+	partial_status &= ~(SW_Summary | SW_Backward);
+
+	return d;
+}
 
-void fsave(fpu_addr_modes addr_modes, u_char __user *data_address)
+void fsave(fpu_addr_modes addr_modes, u_char __user * data_address)
 {
-  u_char __user *d;
-  int offset = (top & 7) * 10, other = 80 - offset;
+	u_char __user *d;
+	int offset = (top & 7) * 10, other = 80 - offset;
 
-  d = fstenv(addr_modes, data_address);
+	d = fstenv(addr_modes, data_address);
 
-  RE_ENTRANT_CHECK_OFF;
-  FPU_access_ok(VERIFY_WRITE,d,80);
+	RE_ENTRANT_CHECK_OFF;
+	FPU_access_ok(VERIFY_WRITE, d, 80);
 
-  /* Copy all registers in stack order. */
-  if (__copy_to_user(d, register_base+offset, other))
-    FPU_abort;
-  if ( offset )
-    if (__copy_to_user(d+other, register_base, offset))
-      FPU_abort;
-  RE_ENTRANT_CHECK_ON;
+	/* Copy all registers in stack order. */
+	if (__copy_to_user(d, register_base + offset, other))
+		FPU_abort;
+	if (offset)
+		if (__copy_to_user(d + other, register_base, offset))
+			FPU_abort;
+	RE_ENTRANT_CHECK_ON;
 
-  finit();
+	finit();
 }
 
 /*===========================================================================*/
diff --git a/arch/x86/math-emu/reg_mul.c b/arch/x86/math-emu/reg_mul.c
index 40f50b61bc67..36c37f71f713 100644
--- a/arch/x86/math-emu/reg_mul.c
+++ b/arch/x86/math-emu/reg_mul.c
@@ -20,7 +20,6 @@
 #include "reg_constant.h"
 #include "fpu_system.h"
 
-
 /*
   Multiply two registers to give a register result.
   The sources are st(deststnr) and (b,tagb,signb).
@@ -29,104 +28,88 @@
 /* This routine must be called with non-empty source registers */
 int FPU_mul(FPU_REG const *b, u_char tagb, int deststnr, int control_w)
 {
-  FPU_REG *a = &st(deststnr);
-  FPU_REG *dest = a;
-  u_char taga = FPU_gettagi(deststnr);
-  u_char saved_sign = getsign(dest);
-  u_char sign = (getsign(a) ^ getsign(b));
-  int tag;
-
+	FPU_REG *a = &st(deststnr);
+	FPU_REG *dest = a;
+	u_char taga = FPU_gettagi(deststnr);
+	u_char saved_sign = getsign(dest);
+	u_char sign = (getsign(a) ^ getsign(b));
+	int tag;
 
-  if ( !(taga | tagb) )
-    {
-      /* Both regs Valid, this should be the most common case. */
+	if (!(taga | tagb)) {
+		/* Both regs Valid, this should be the most common case. */
 
-      tag = FPU_u_mul(a, b, dest, control_w, sign, exponent(a) + exponent(b));
-      if ( tag < 0 )
-	{
-	  setsign(dest, saved_sign);
-	  return tag;
+		tag =
+		    FPU_u_mul(a, b, dest, control_w, sign,
+			      exponent(a) + exponent(b));
+		if (tag < 0) {
+			setsign(dest, saved_sign);
+			return tag;
+		}
+		FPU_settagi(deststnr, tag);
+		return tag;
 	}
-      FPU_settagi(deststnr, tag);
-      return tag;
-    }
 
-  if ( taga == TAG_Special )
-    taga = FPU_Special(a);
-  if ( tagb == TAG_Special )
-    tagb = FPU_Special(b);
+	if (taga == TAG_Special)
+		taga = FPU_Special(a);
+	if (tagb == TAG_Special)
+		tagb = FPU_Special(b);
 
-  if ( ((taga == TAG_Valid) && (tagb == TW_Denormal))
+	if (((taga == TAG_Valid) && (tagb == TW_Denormal))
 	    || ((taga == TW_Denormal) && (tagb == TAG_Valid))
-	    || ((taga == TW_Denormal) && (tagb == TW_Denormal)) )
-    {
-      FPU_REG x, y;
-      if ( denormal_operand() < 0 )
-	return FPU_Exception;
-
-      FPU_to_exp16(a, &x);
-      FPU_to_exp16(b, &y);
-      tag = FPU_u_mul(&x, &y, dest, control_w, sign,
-		      exponent16(&x) + exponent16(&y));
-      if ( tag < 0 )
-	{
-	  setsign(dest, saved_sign);
-	  return tag;
-	}
-      FPU_settagi(deststnr, tag);
-      return tag;
-    }
-  else if ( (taga <= TW_Denormal) && (tagb <= TW_Denormal) )
-    {
-      if ( ((tagb == TW_Denormal) || (taga == TW_Denormal))
-	   && (denormal_operand() < 0) )
-	return FPU_Exception;
+	    || ((taga == TW_Denormal) && (tagb == TW_Denormal))) {
+		FPU_REG x, y;
+		if (denormal_operand() < 0)
+			return FPU_Exception;
 
-      /* Must have either both arguments == zero, or
-	 one valid and the other zero.
-	 The result is therefore zero. */
-      FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
-      /* The 80486 book says that the answer is +0, but a real
-	 80486 behaves this way.
-	 IEEE-754 apparently says it should be this way. */
-      setsign(dest, sign);
-      return TAG_Zero;
-    }
-      /* Must have infinities, NaNs, etc */
-  else if ( (taga == TW_NaN) || (tagb == TW_NaN) )
-    {
-      return real_2op_NaN(b, tagb, deststnr, &st(0));
-    }
-  else if ( ((taga == TW_Infinity) && (tagb == TAG_Zero))
-	    || ((tagb == TW_Infinity) && (taga == TAG_Zero)) )
-    {
-      return arith_invalid(deststnr);  /* Zero*Infinity is invalid */
-    }
-  else if ( ((taga == TW_Denormal) || (tagb == TW_Denormal))
-	    && (denormal_operand() < 0) )
-    {
-      return FPU_Exception;
-    }
-  else if (taga == TW_Infinity)
-    {
-      FPU_copy_to_regi(a, TAG_Special, deststnr);
-      setsign(dest, sign);
-      return TAG_Special;
-    }
-  else if (tagb == TW_Infinity)
-    {
-      FPU_copy_to_regi(b, TAG_Special, deststnr);
-      setsign(dest, sign);
-      return TAG_Special;
-    }
+		FPU_to_exp16(a, &x);
+		FPU_to_exp16(b, &y);
+		tag = FPU_u_mul(&x, &y, dest, control_w, sign,
+				exponent16(&x) + exponent16(&y));
+		if (tag < 0) {
+			setsign(dest, saved_sign);
+			return tag;
+		}
+		FPU_settagi(deststnr, tag);
+		return tag;
+	} else if ((taga <= TW_Denormal) && (tagb <= TW_Denormal)) {
+		if (((tagb == TW_Denormal) || (taga == TW_Denormal))
+		    && (denormal_operand() < 0))
+			return FPU_Exception;
 
+		/* Must have either both arguments == zero, or
+		   one valid and the other zero.
+		   The result is therefore zero. */
+		FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
+		/* The 80486 book says that the answer is +0, but a real
+		   80486 behaves this way.
+		   IEEE-754 apparently says it should be this way. */
+		setsign(dest, sign);
+		return TAG_Zero;
+	}
+	/* Must have infinities, NaNs, etc */
+	else if ((taga == TW_NaN) || (tagb == TW_NaN)) {
+		return real_2op_NaN(b, tagb, deststnr, &st(0));
+	} else if (((taga == TW_Infinity) && (tagb == TAG_Zero))
+		   || ((tagb == TW_Infinity) && (taga == TAG_Zero))) {
+		return arith_invalid(deststnr);	/* Zero*Infinity is invalid */
+	} else if (((taga == TW_Denormal) || (tagb == TW_Denormal))
+		   && (denormal_operand() < 0)) {
+		return FPU_Exception;
+	} else if (taga == TW_Infinity) {
+		FPU_copy_to_regi(a, TAG_Special, deststnr);
+		setsign(dest, sign);
+		return TAG_Special;
+	} else if (tagb == TW_Infinity) {
+		FPU_copy_to_regi(b, TAG_Special, deststnr);
+		setsign(dest, sign);
+		return TAG_Special;
+	}
 #ifdef PARANOID
-  else
-    {
-      EXCEPTION(EX_INTERNAL|0x102);
-      return FPU_Exception;
-    }
-#endif /* PARANOID */ 
+	else {
+		EXCEPTION(EX_INTERNAL | 0x102);
+		return FPU_Exception;
+	}
+#endif /* PARANOID */
 
 	return 0;
 }
diff --git a/arch/x86/math-emu/status_w.h b/arch/x86/math-emu/status_w.h
index 59e73302aa60..54a3f226982d 100644
--- a/arch/x86/math-emu/status_w.h
+++ b/arch/x86/math-emu/status_w.h
@@ -10,7 +10,7 @@
 #ifndef _STATUS_H_
 #define _STATUS_H_
 
-#include "fpu_emu.h"    /* for definition of PECULIAR_486 */
+#include "fpu_emu.h"		/* for definition of PECULIAR_486 */
 
 #ifdef __ASSEMBLY__
 #define	Const__(x)	$##x
@@ -34,7 +34,7 @@
 #define SW_Denorm_Op   	Const__(0x0002)	/* denormalized operand */
 #define SW_Invalid     	Const__(0x0001)	/* invalid operation */
 
-#define SW_Exc_Mask     Const__(0x27f)  /* Status word exception bit mask */
+#define SW_Exc_Mask     Const__(0x27f)	/* Status word exception bit mask */
 
 #ifndef __ASSEMBLY__
 
@@ -50,8 +50,8 @@
   ((partial_status & ~SW_Top & 0xffff) | ((top << SW_Top_Shift) & SW_Top))
 static inline void setcc(int cc)
 {
-	partial_status &= ~(SW_C0|SW_C1|SW_C2|SW_C3);
-	partial_status |= (cc) & (SW_C0|SW_C1|SW_C2|SW_C3);
+	partial_status &= ~(SW_C0 | SW_C1 | SW_C2 | SW_C3);
+	partial_status |= (cc) & (SW_C0 | SW_C1 | SW_C2 | SW_C3);
 }
 
 #ifdef PECULIAR_486
-- 
cgit v1.2.3-59-g8ed1b


From e8d591dc710158bae6b53c8b7a0172351025c6e2 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:30:12 +0100
Subject: x86: lindent arch/i386/math-emu, cleanup

manually clean up some of the damage that lindent caused.
(this is a separate commit so that in the unlikely case of
a typo we can bisect it down to the manual edits.)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/math-emu/errors.c      |  6 ++--
 arch/x86/math-emu/fpu_emu.h     | 12 ++++----
 arch/x86/math-emu/fpu_entry.c   |  6 ++--
 arch/x86/math-emu/fpu_etc.c     |  8 +++---
 arch/x86/math-emu/fpu_proto.h   | 62 ++++++++++++++++++++---------------------
 arch/x86/math-emu/fpu_trig.c    | 38 ++++++++++++-------------
 arch/x86/math-emu/poly.h        | 10 +++----
 arch/x86/math-emu/poly_2xm1.c   |  2 +-
 arch/x86/math-emu/poly_atan.c   |  4 +--
 arch/x86/math-emu/poly_l2.c     |  4 +--
 arch/x86/math-emu/poly_sin.c    |  4 +--
 arch/x86/math-emu/poly_tan.c    |  2 +-
 arch/x86/math-emu/reg_convert.c |  2 +-
 arch/x86/math-emu/reg_ld_str.c  | 42 ++++++++++++++--------------
 14 files changed, 101 insertions(+), 101 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/math-emu/errors.c b/arch/x86/math-emu/errors.c
index 7cb5bf3495b2..145b68a99516 100644
--- a/arch/x86/math-emu/errors.c
+++ b/arch/x86/math-emu/errors.c
@@ -374,7 +374,7 @@ asmlinkage void FPU_exception(int n)
 
 /* Real operation attempted on a NaN. */
 /* Returns < 0 if the exception is unmasked */
-int real_1op_NaN(FPU_REG * a)
+int real_1op_NaN(FPU_REG *a)
 {
 	int signalling, isNaN;
 
@@ -573,7 +573,7 @@ asmlinkage int denormal_operand(void)
 	}
 }
 
-asmlinkage int arith_overflow(FPU_REG * dest)
+asmlinkage int arith_overflow(FPU_REG *dest)
 {
 	int tag = TAG_Valid;
 
@@ -601,7 +601,7 @@ asmlinkage int arith_overflow(FPU_REG * dest)
 
 }
 
-asmlinkage int arith_underflow(FPU_REG * dest)
+asmlinkage int arith_underflow(FPU_REG *dest)
 {
 	int tag = TAG_Valid;
 
diff --git a/arch/x86/math-emu/fpu_emu.h b/arch/x86/math-emu/fpu_emu.h
index 656dd4c04b1b..4dae511c85ad 100644
--- a/arch/x86/math-emu/fpu_emu.h
+++ b/arch/x86/math-emu/fpu_emu.h
@@ -122,7 +122,7 @@ struct fpu__reg {
 
 typedef void (*FUNC) (void);
 typedef struct fpu__reg FPU_REG;
-typedef void (*FUNC_ST0) (FPU_REG * st0_ptr, u_char st0_tag);
+typedef void (*FUNC_ST0) (FPU_REG *st0_ptr, u_char st0_tag);
 typedef struct {
 	u_char address_size, operand_size, segment;
 } overrides;
@@ -166,7 +166,7 @@ extern u_char const data_sizes_16[32];
 #define signpositive(a) ( (signbyte(a) & 0x80) == 0 )
 #define signnegative(a) (signbyte(a) & 0x80)
 
-static inline void reg_copy(FPU_REG const *x, FPU_REG * y)
+static inline void reg_copy(FPU_REG const *x, FPU_REG *y)
 {
 	*(short *)&(y->exp) = *(const short *)&(x->exp);
 	*(long long *)&(y->sigl) = *(const long long *)&(x->sigl);
@@ -187,8 +187,8 @@ static inline void reg_copy(FPU_REG const *x, FPU_REG * y)
 /*----- Prototypes for functions written in assembler -----*/
 /* extern void reg_move(FPU_REG *a, FPU_REG *b); */
 
-asmlinkage int FPU_normalize(FPU_REG * x);
-asmlinkage int FPU_normalize_nuo(FPU_REG * x);
+asmlinkage int FPU_normalize(FPU_REG *x);
+asmlinkage int FPU_normalize_nuo(FPU_REG *x);
 asmlinkage int FPU_u_sub(FPU_REG const *arg1, FPU_REG const *arg2,
 			 FPU_REG * answ, unsigned int control_w, u_char sign,
 			 int expa, int expb);
@@ -200,12 +200,12 @@ asmlinkage int FPU_u_div(FPU_REG const *arg1, FPU_REG const *arg2,
 asmlinkage int FPU_u_add(FPU_REG const *arg1, FPU_REG const *arg2,
 			 FPU_REG * answ, unsigned int control_w, u_char sign,
 			 int expa, int expb);
-asmlinkage int wm_sqrt(FPU_REG * n, int dummy1, int dummy2,
+asmlinkage int wm_sqrt(FPU_REG *n, int dummy1, int dummy2,
 		       unsigned int control_w, u_char sign);
 asmlinkage unsigned FPU_shrx(void *l, unsigned x);
 asmlinkage unsigned FPU_shrxs(void *v, unsigned x);
 asmlinkage unsigned long FPU_div_small(unsigned long long *x, unsigned long y);
-asmlinkage int FPU_round(FPU_REG * arg, unsigned int extent, int dummy,
+asmlinkage int FPU_round(FPU_REG *arg, unsigned int extent, int dummy,
 			 unsigned int control_w, u_char sign);
 
 #ifndef MAKING_PROTO
diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index cbb8717f09fd..377c60dfa2f0 100644
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -126,7 +126,7 @@ static u_char const type_table[64] = {
 u_char emulating = 0;
 #endif /* RE_ENTRANT_CHECKING */
 
-static int valid_prefix(u_char * Byte, u_char __user ** fpu_eip,
+static int valid_prefix(u_char *Byte, u_char __user ** fpu_eip,
 			overrides * override);
 
 asmlinkage void math_emulate(long arg)
@@ -580,7 +580,7 @@ asmlinkage void math_emulate(long arg)
    all prefix bytes, further changes are needed in the emulator code
    which accesses user address space. Access to separate segments is
    important for msdos emulation. */
-static int valid_prefix(u_char * Byte, u_char __user ** fpu_eip,
+static int valid_prefix(u_char *Byte, u_char __user **fpu_eip,
 			overrides * override)
 {
 	u_char byte;
@@ -673,7 +673,7 @@ void math_abort(struct info *info, unsigned int signal)
 #define sstatus_word() \
   ((S387->swd & ~SW_Top & 0xffff) | ((S387->ftop << SW_Top_Shift) & SW_Top))
 
-int restore_i387_soft(void *s387, struct _fpstate __user * buf)
+int restore_i387_soft(void *s387, struct _fpstate __user *buf)
 {
 	u_char __user *d = (u_char __user *) buf;
 	int offset, other, i, tags, regnr, tag, newtop;
diff --git a/arch/x86/math-emu/fpu_etc.c b/arch/x86/math-emu/fpu_etc.c
index e73631e0cde9..233e5af566f5 100644
--- a/arch/x86/math-emu/fpu_etc.c
+++ b/arch/x86/math-emu/fpu_etc.c
@@ -16,7 +16,7 @@
 #include "status_w.h"
 #include "reg_constant.h"
 
-static void fchs(FPU_REG * st0_ptr, u_char st0tag)
+static void fchs(FPU_REG *st0_ptr, u_char st0tag)
 {
 	if (st0tag ^ TAG_Empty) {
 		signbyte(st0_ptr) ^= SIGN_NEG;
@@ -25,7 +25,7 @@ static void fchs(FPU_REG * st0_ptr, u_char st0tag)
 		FPU_stack_underflow();
 }
 
-static void fabs(FPU_REG * st0_ptr, u_char st0tag)
+static void fabs(FPU_REG *st0_ptr, u_char st0tag)
 {
 	if (st0tag ^ TAG_Empty) {
 		setpositive(st0_ptr);
@@ -34,7 +34,7 @@ static void fabs(FPU_REG * st0_ptr, u_char st0tag)
 		FPU_stack_underflow();
 }
 
-static void ftst_(FPU_REG * st0_ptr, u_char st0tag)
+static void ftst_(FPU_REG *st0_ptr, u_char st0tag)
 {
 	switch (st0tag) {
 	case TAG_Zero:
@@ -85,7 +85,7 @@ static void ftst_(FPU_REG * st0_ptr, u_char st0tag)
 	}
 }
 
-static void fxam(FPU_REG * st0_ptr, u_char st0tag)
+static void fxam(FPU_REG *st0_ptr, u_char st0tag)
 {
 	int c = 0;
 	switch (st0tag) {
diff --git a/arch/x86/math-emu/fpu_proto.h b/arch/x86/math-emu/fpu_proto.h
index 0f6384102afd..aa49b6a0d850 100644
--- a/arch/x86/math-emu/fpu_proto.h
+++ b/arch/x86/math-emu/fpu_proto.h
@@ -5,7 +5,7 @@
 extern void FPU_illegal(void);
 extern void FPU_printall(void);
 asmlinkage void FPU_exception(int n);
-extern int real_1op_NaN(FPU_REG * a);
+extern int real_1op_NaN(FPU_REG *a);
 extern int real_2op_NaN(FPU_REG const *b, u_char tagb, int deststnr,
 			FPU_REG const *defaultNaN);
 asmlinkage int arith_invalid(int deststnr);
@@ -14,8 +14,8 @@ extern int set_precision_flag(int flags);
 asmlinkage void set_precision_flag_up(void);
 asmlinkage void set_precision_flag_down(void);
 asmlinkage int denormal_operand(void);
-asmlinkage int arith_overflow(FPU_REG * dest);
-asmlinkage int arith_underflow(FPU_REG * dest);
+asmlinkage int arith_overflow(FPU_REG *dest);
+asmlinkage int arith_underflow(FPU_REG *dest);
 extern void FPU_stack_overflow(void);
 extern void FPU_stack_underflow(void);
 extern void FPU_stack_underflow_i(int i);
@@ -84,19 +84,19 @@ extern void __user *FPU_get_address_16(u_char FPU_modrm, unsigned long *fpu_eip,
 extern int FPU_load_store(u_char type, fpu_addr_modes addr_modes,
 			  void __user * data_address);
 /* poly_2xm1.c */
-extern int poly_2xm1(u_char sign, FPU_REG * arg, FPU_REG * result);
+extern int poly_2xm1(u_char sign, FPU_REG * arg, FPU_REG *result);
 /* poly_atan.c */
-extern void poly_atan(FPU_REG * st0_ptr, u_char st0_tag, FPU_REG * st1_ptr,
+extern void poly_atan(FPU_REG * st0_ptr, u_char st0_tag, FPU_REG *st1_ptr,
 		      u_char st1_tag);
 /* poly_l2.c */
-extern void poly_l2(FPU_REG * st0_ptr, FPU_REG * st1_ptr, u_char st1_sign);
-extern int poly_l2p1(u_char s0, u_char s1, FPU_REG * r0, FPU_REG * r1,
+extern void poly_l2(FPU_REG *st0_ptr, FPU_REG *st1_ptr, u_char st1_sign);
+extern int poly_l2p1(u_char s0, u_char s1, FPU_REG *r0, FPU_REG *r1,
 		     FPU_REG * d);
 /* poly_sin.c */
-extern void poly_sine(FPU_REG * st0_ptr);
-extern void poly_cos(FPU_REG * st0_ptr);
+extern void poly_sine(FPU_REG *st0_ptr);
+extern void poly_cos(FPU_REG *st0_ptr);
 /* poly_tan.c */
-extern void poly_tan(FPU_REG * st0_ptr);
+extern void poly_tan(FPU_REG *st0_ptr);
 /* reg_add_sub.c */
 extern int FPU_add(FPU_REG const *b, u_char tagb, int destrnr, int control_w);
 extern int FPU_sub(int flags, int rm, int control_w);
@@ -111,34 +111,34 @@ extern void fucompp(void);
 /* reg_constant.c */
 extern void fconst(void);
 /* reg_ld_str.c */
-extern int FPU_load_extended(long double __user * s, int stnr);
-extern int FPU_load_double(double __user * dfloat, FPU_REG * loaded_data);
-extern int FPU_load_single(float __user * single, FPU_REG * loaded_data);
-extern int FPU_load_int64(long long __user * _s);
-extern int FPU_load_int32(long __user * _s, FPU_REG * loaded_data);
-extern int FPU_load_int16(short __user * _s, FPU_REG * loaded_data);
-extern int FPU_load_bcd(u_char __user * s);
-extern int FPU_store_extended(FPU_REG * st0_ptr, u_char st0_tag,
+extern int FPU_load_extended(long double __user *s, int stnr);
+extern int FPU_load_double(double __user *dfloat, FPU_REG *loaded_data);
+extern int FPU_load_single(float __user *single, FPU_REG *loaded_data);
+extern int FPU_load_int64(long long __user *_s);
+extern int FPU_load_int32(long __user *_s, FPU_REG *loaded_data);
+extern int FPU_load_int16(short __user *_s, FPU_REG *loaded_data);
+extern int FPU_load_bcd(u_char __user *s);
+extern int FPU_store_extended(FPU_REG *st0_ptr, u_char st0_tag,
 			      long double __user * d);
-extern int FPU_store_double(FPU_REG * st0_ptr, u_char st0_tag,
+extern int FPU_store_double(FPU_REG *st0_ptr, u_char st0_tag,
 			    double __user * dfloat);
-extern int FPU_store_single(FPU_REG * st0_ptr, u_char st0_tag,
+extern int FPU_store_single(FPU_REG *st0_ptr, u_char st0_tag,
 			    float __user * single);
-extern int FPU_store_int64(FPU_REG * st0_ptr, u_char st0_tag,
+extern int FPU_store_int64(FPU_REG *st0_ptr, u_char st0_tag,
 			   long long __user * d);
-extern int FPU_store_int32(FPU_REG * st0_ptr, u_char st0_tag, long __user * d);
-extern int FPU_store_int16(FPU_REG * st0_ptr, u_char st0_tag, short __user * d);
-extern int FPU_store_bcd(FPU_REG * st0_ptr, u_char st0_tag, u_char __user * d);
-extern int FPU_round_to_int(FPU_REG * r, u_char tag);
-extern u_char __user *fldenv(fpu_addr_modes addr_modes, u_char __user * s);
-extern void frstor(fpu_addr_modes addr_modes, u_char __user * data_address);
-extern u_char __user *fstenv(fpu_addr_modes addr_modes, u_char __user * d);
-extern void fsave(fpu_addr_modes addr_modes, u_char __user * data_address);
-extern int FPU_tagof(FPU_REG * ptr);
+extern int FPU_store_int32(FPU_REG *st0_ptr, u_char st0_tag, long __user *d);
+extern int FPU_store_int16(FPU_REG *st0_ptr, u_char st0_tag, short __user *d);
+extern int FPU_store_bcd(FPU_REG *st0_ptr, u_char st0_tag, u_char __user *d);
+extern int FPU_round_to_int(FPU_REG *r, u_char tag);
+extern u_char __user *fldenv(fpu_addr_modes addr_modes, u_char __user *s);
+extern void frstor(fpu_addr_modes addr_modes, u_char __user *data_address);
+extern u_char __user *fstenv(fpu_addr_modes addr_modes, u_char __user *d);
+extern void fsave(fpu_addr_modes addr_modes, u_char __user *data_address);
+extern int FPU_tagof(FPU_REG *ptr);
 /* reg_mul.c */
 extern int FPU_mul(FPU_REG const *b, u_char tagb, int deststnr, int control_w);
 
 extern int FPU_div(int flags, int regrm, int control_w);
 /* reg_convert.c */
-extern int FPU_to_exp16(FPU_REG const *a, FPU_REG * x);
+extern int FPU_to_exp16(FPU_REG const *a, FPU_REG *x);
 #endif /* _FPU_PROTO_H */
diff --git a/arch/x86/math-emu/fpu_trig.c b/arch/x86/math-emu/fpu_trig.c
index e5316a288a6e..ecd06680581c 100644
--- a/arch/x86/math-emu/fpu_trig.c
+++ b/arch/x86/math-emu/fpu_trig.c
@@ -30,7 +30,7 @@ static void rem_kernel(unsigned long long st0, unsigned long long *y,
 /* Limited measurements show no results worse than 64 bit precision
    except for the results for arguments close to 2^63, where the
    precision of the result sometimes degrades to about 63.9 bits */
-static int trig_arg(FPU_REG * st0_ptr, int even)
+static int trig_arg(FPU_REG *st0_ptr, int even)
 {
 	FPU_REG tmp;
 	u_char tmptag;
@@ -176,7 +176,7 @@ static void convert_l2reg(long const *arg, int deststnr)
 	return;
 }
 
-static void single_arg_error(FPU_REG * st0_ptr, u_char st0_tag)
+static void single_arg_error(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	if (st0_tag == TAG_Empty)
 		FPU_stack_underflow();	/* Puts a QNaN in st(0) */
@@ -188,7 +188,7 @@ static void single_arg_error(FPU_REG * st0_ptr, u_char st0_tag)
 #endif /* PARANOID */
 }
 
-static void single_arg_2_error(FPU_REG * st0_ptr, u_char st0_tag)
+static void single_arg_2_error(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	int isNaN;
 
@@ -229,7 +229,7 @@ static void single_arg_2_error(FPU_REG * st0_ptr, u_char st0_tag)
 
 /*---------------------------------------------------------------------------*/
 
-static void f2xm1(FPU_REG * st0_ptr, u_char tag)
+static void f2xm1(FPU_REG *st0_ptr, u_char tag)
 {
 	FPU_REG a;
 
@@ -272,7 +272,7 @@ static void f2xm1(FPU_REG * st0_ptr, u_char tag)
 	}
 }
 
-static void fptan(FPU_REG * st0_ptr, u_char st0_tag)
+static void fptan(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	FPU_REG *st_new_ptr;
 	int q;
@@ -351,7 +351,7 @@ static void fptan(FPU_REG * st0_ptr, u_char st0_tag)
 	single_arg_2_error(st0_ptr, st0_tag);
 }
 
-static void fxtract(FPU_REG * st0_ptr, u_char st0_tag)
+static void fxtract(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	FPU_REG *st_new_ptr;
 	u_char sign;
@@ -444,7 +444,7 @@ static void fincstp(void)
 	top++;
 }
 
-static void fsqrt_(FPU_REG * st0_ptr, u_char st0_tag)
+static void fsqrt_(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	int expon;
 
@@ -502,7 +502,7 @@ static void fsqrt_(FPU_REG * st0_ptr, u_char st0_tag)
 
 }
 
-static void frndint_(FPU_REG * st0_ptr, u_char st0_tag)
+static void frndint_(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	int flags, tag;
 
@@ -546,7 +546,7 @@ static void frndint_(FPU_REG * st0_ptr, u_char st0_tag)
 		single_arg_error(st0_ptr, st0_tag);
 }
 
-static int fsin(FPU_REG * st0_ptr, u_char tag)
+static int fsin(FPU_REG *st0_ptr, u_char tag)
 {
 	u_char arg_sign = getsign(st0_ptr);
 
@@ -607,7 +607,7 @@ static int fsin(FPU_REG * st0_ptr, u_char tag)
 	}
 }
 
-static int f_cos(FPU_REG * st0_ptr, u_char tag)
+static int f_cos(FPU_REG *st0_ptr, u_char tag)
 {
 	u_char st0_sign;
 
@@ -677,12 +677,12 @@ static int f_cos(FPU_REG * st0_ptr, u_char tag)
 	}
 }
 
-static void fcos(FPU_REG * st0_ptr, u_char st0_tag)
+static void fcos(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	f_cos(st0_ptr, st0_tag);
 }
 
-static void fsincos(FPU_REG * st0_ptr, u_char st0_tag)
+static void fsincos(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	FPU_REG *st_new_ptr;
 	FPU_REG arg;
@@ -775,7 +775,7 @@ static void rem_kernel(unsigned long long st0, unsigned long long *y,
 /* Remainder of st(0) / st(1) */
 /* This routine produces exact results, i.e. there is never any
    rounding or truncation, etc of the result. */
-static void do_fprem(FPU_REG * st0_ptr, u_char st0_tag, int round)
+static void do_fprem(FPU_REG *st0_ptr, u_char st0_tag, int round)
 {
 	FPU_REG *st1_ptr = &st(1);
 	u_char st1_tag = FPU_gettagi(1);
@@ -1017,7 +1017,7 @@ static void do_fprem(FPU_REG * st0_ptr, u_char st0_tag, int round)
 }
 
 /* ST(1) <- ST(1) * log ST;  pop ST */
-static void fyl2x(FPU_REG * st0_ptr, u_char st0_tag)
+static void fyl2x(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	FPU_REG *st1_ptr = &st(1), exponent;
 	u_char st1_tag = FPU_gettagi(1);
@@ -1188,7 +1188,7 @@ static void fyl2x(FPU_REG * st0_ptr, u_char st0_tag)
 	FPU_pop();
 }
 
-static void fpatan(FPU_REG * st0_ptr, u_char st0_tag)
+static void fpatan(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	FPU_REG *st1_ptr = &st(1);
 	u_char st1_tag = FPU_gettagi(1);
@@ -1298,17 +1298,17 @@ static void fpatan(FPU_REG * st0_ptr, u_char st0_tag)
 	set_precision_flag_up();	/* We do not really know if up or down */
 }
 
-static void fprem(FPU_REG * st0_ptr, u_char st0_tag)
+static void fprem(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	do_fprem(st0_ptr, st0_tag, RC_CHOP);
 }
 
-static void fprem1(FPU_REG * st0_ptr, u_char st0_tag)
+static void fprem1(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	do_fprem(st0_ptr, st0_tag, RC_RND);
 }
 
-static void fyl2xp1(FPU_REG * st0_ptr, u_char st0_tag)
+static void fyl2xp1(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	u_char sign, sign1;
 	FPU_REG *st1_ptr = &st(1), a, b;
@@ -1477,7 +1477,7 @@ static void fyl2xp1(FPU_REG * st0_ptr, u_char st0_tag)
 
 }
 
-static void fscale(FPU_REG * st0_ptr, u_char st0_tag)
+static void fscale(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	FPU_REG *st1_ptr = &st(1);
 	u_char st1_tag = FPU_gettagi(1);
diff --git a/arch/x86/math-emu/poly.h b/arch/x86/math-emu/poly.h
index f317de7d8864..168eb44c93c8 100644
--- a/arch/x86/math-emu/poly.h
+++ b/arch/x86/math-emu/poly.h
@@ -33,12 +33,12 @@ asmlinkage void polynomial_Xsig(Xsig *, const unsigned long long *x,
 
 asmlinkage void mul32_Xsig(Xsig *, const unsigned long mult);
 asmlinkage void mul64_Xsig(Xsig *, const unsigned long long *mult);
-asmlinkage void mul_Xsig_Xsig(Xsig * dest, const Xsig * mult);
+asmlinkage void mul_Xsig_Xsig(Xsig *dest, const Xsig *mult);
 
 asmlinkage void shr_Xsig(Xsig *, const int n);
 asmlinkage int round_Xsig(Xsig *);
 asmlinkage int norm_Xsig(Xsig *);
-asmlinkage void div_Xsig(Xsig * x1, const Xsig * x2, const Xsig * dest);
+asmlinkage void div_Xsig(Xsig *x1, const Xsig *x2, const Xsig *dest);
 
 /* Macro to extract the most significant 32 bits from a long long */
 #define LL_MSW(x)     (((unsigned long *)&x)[1])
@@ -70,7 +70,7 @@ static inline unsigned long mul_32_32(const unsigned long arg1,
 }
 
 /* Add the 12 byte Xsig x2 to Xsig dest, with no checks for overflow. */
-static inline void add_Xsig_Xsig(Xsig * dest, const Xsig * x2)
+static inline void add_Xsig_Xsig(Xsig *dest, const Xsig *x2)
 {
 	asm volatile ("movl %1,%%edi; movl %2,%%esi;\n"
 		      "movl (%%esi),%%eax; addl %%eax,(%%edi);\n"
@@ -84,7 +84,7 @@ static inline void add_Xsig_Xsig(Xsig * dest, const Xsig * x2)
 /* Note: the constraints in the asm statement didn't always work properly
    with gcc 2.5.8.  Changing from using edi to using ecx got around the
    problem, but keep fingers crossed! */
-static inline void add_two_Xsig(Xsig * dest, const Xsig * x2, long int *exp)
+static inline void add_two_Xsig(Xsig *dest, const Xsig *x2, long int *exp)
 {
 	asm volatile ("movl %2,%%ecx; movl %3,%%esi;\n"
 		      "movl (%%esi),%%eax; addl %%eax,(%%ecx);\n"
@@ -101,7 +101,7 @@ static inline void add_two_Xsig(Xsig * dest, const Xsig * x2, long int *exp)
 
 /* Negate (subtract from 1.0) the 12 byte Xsig */
 /* This is faster in a loop on my 386 than using the "neg" instruction. */
-static inline void negate_Xsig(Xsig * x)
+static inline void negate_Xsig(Xsig *x)
 {
 	asm volatile ("movl %1,%%esi;\n"
 		      "xorl %%ecx,%%ecx;\n"
diff --git a/arch/x86/math-emu/poly_2xm1.c b/arch/x86/math-emu/poly_2xm1.c
index d8f2be3c8383..b00e9e10cdce 100644
--- a/arch/x86/math-emu/poly_2xm1.c
+++ b/arch/x86/math-emu/poly_2xm1.c
@@ -49,7 +49,7 @@ static const Xsig *shiftterm[] = { &shiftterm0, &shiftterm1,
 /*--- poly_2xm1() -----------------------------------------------------------+
  | Requires st(0) which is TAG_Valid and < 1.                                |
  +---------------------------------------------------------------------------*/
-int poly_2xm1(u_char sign, FPU_REG * arg, FPU_REG * result)
+int poly_2xm1(u_char sign, FPU_REG *arg, FPU_REG *result)
 {
 	long int exponent, shift;
 	unsigned long long Xll;
diff --git a/arch/x86/math-emu/poly_atan.c b/arch/x86/math-emu/poly_atan.c
index 2f4ac8143fc3..20c28e58e2d4 100644
--- a/arch/x86/math-emu/poly_atan.c
+++ b/arch/x86/math-emu/poly_atan.c
@@ -48,8 +48,8 @@ static const Xsig pi_signif = MK_XSIG(0xc90fdaa2, 0x2168c234, 0xc4c6628b);
 /*--- poly_atan() -----------------------------------------------------------+
  |                                                                           |
  +---------------------------------------------------------------------------*/
-void poly_atan(FPU_REG * st0_ptr, u_char st0_tag,
-	       FPU_REG * st1_ptr, u_char st1_tag)
+void poly_atan(FPU_REG *st0_ptr, u_char st0_tag,
+	       FPU_REG *st1_ptr, u_char st1_tag)
 {
 	u_char transformed, inverted, sign1, sign2;
 	int exponent;
diff --git a/arch/x86/math-emu/poly_l2.c b/arch/x86/math-emu/poly_l2.c
index c0102ae87511..8e2ff4b28a0a 100644
--- a/arch/x86/math-emu/poly_l2.c
+++ b/arch/x86/math-emu/poly_l2.c
@@ -23,7 +23,7 @@ static void log2_kernel(FPU_REG const *arg, u_char argsign,
 /*--- poly_l2() -------------------------------------------------------------+
  |   Base 2 logarithm by a polynomial approximation.                         |
  +---------------------------------------------------------------------------*/
-void poly_l2(FPU_REG * st0_ptr, FPU_REG * st1_ptr, u_char st1_sign)
+void poly_l2(FPU_REG *st0_ptr, FPU_REG *st1_ptr, u_char st1_sign)
 {
 	long int exponent, expon, expon_expon;
 	Xsig accumulator, expon_accum, yaccum;
@@ -178,7 +178,7 @@ static const unsigned long leadterm = 0xb8000000;
  |   Base 2 logarithm by a polynomial approximation.                         |
  |   log2(x+1)                                                               |
  +---------------------------------------------------------------------------*/
-static void log2_kernel(FPU_REG const *arg, u_char argsign, Xsig * accum_result,
+static void log2_kernel(FPU_REG const *arg, u_char argsign, Xsig *accum_result,
 			long int *expon)
 {
 	long int exponent, adj;
diff --git a/arch/x86/math-emu/poly_sin.c b/arch/x86/math-emu/poly_sin.c
index 7273ae0c7692..b862039c728e 100644
--- a/arch/x86/math-emu/poly_sin.c
+++ b/arch/x86/math-emu/poly_sin.c
@@ -54,7 +54,7 @@ static const unsigned long long neg_terms_h[N_COEFF_NH] = {
 /*--- poly_sine() -----------------------------------------------------------+
  |                                                                           |
  +---------------------------------------------------------------------------*/
-void poly_sine(FPU_REG * st0_ptr)
+void poly_sine(FPU_REG *st0_ptr)
 {
 	int exponent, echange;
 	Xsig accumulator, argSqrd, argTo4;
@@ -197,7 +197,7 @@ void poly_sine(FPU_REG * st0_ptr)
 /*--- poly_cos() ------------------------------------------------------------+
  |                                                                           |
  +---------------------------------------------------------------------------*/
-void poly_cos(FPU_REG * st0_ptr)
+void poly_cos(FPU_REG *st0_ptr)
 {
 	FPU_REG result;
 	long int exponent, exp2, echange;
diff --git a/arch/x86/math-emu/poly_tan.c b/arch/x86/math-emu/poly_tan.c
index c0d181e39229..1875763e0c02 100644
--- a/arch/x86/math-emu/poly_tan.c
+++ b/arch/x86/math-emu/poly_tan.c
@@ -47,7 +47,7 @@ static const unsigned long long twothirds = 0xaaaaaaaaaaaaaaabLL;
 /*--- poly_tan() ------------------------------------------------------------+
  |                                                                           |
  +---------------------------------------------------------------------------*/
-void poly_tan(FPU_REG * st0_ptr)
+void poly_tan(FPU_REG *st0_ptr)
 {
 	long int exponent;
 	int invert;
diff --git a/arch/x86/math-emu/reg_convert.c b/arch/x86/math-emu/reg_convert.c
index afd31b31000d..108060779977 100644
--- a/arch/x86/math-emu/reg_convert.c
+++ b/arch/x86/math-emu/reg_convert.c
@@ -13,7 +13,7 @@
 #include "exception.h"
 #include "fpu_emu.h"
 
-int FPU_to_exp16(FPU_REG const *a, FPU_REG * x)
+int FPU_to_exp16(FPU_REG const *a, FPU_REG *x)
 {
 	int sign = getsign(a);
 
diff --git a/arch/x86/math-emu/reg_ld_str.c b/arch/x86/math-emu/reg_ld_str.c
index 0b2ca8dc2988..799d4af5be66 100644
--- a/arch/x86/math-emu/reg_ld_str.c
+++ b/arch/x86/math-emu/reg_ld_str.c
@@ -35,7 +35,7 @@
 #define SINGLE_Ebias 127
 #define SINGLE_Emin (-126)	/* smallest valid exponent */
 
-static u_char normalize_no_excep(FPU_REG * r, int exp, int sign)
+static u_char normalize_no_excep(FPU_REG *r, int exp, int sign)
 {
 	u_char tag;
 
@@ -49,7 +49,7 @@ static u_char normalize_no_excep(FPU_REG * r, int exp, int sign)
 	return tag;
 }
 
-int FPU_tagof(FPU_REG * ptr)
+int FPU_tagof(FPU_REG *ptr)
 {
 	int exp;
 
@@ -78,7 +78,7 @@ int FPU_tagof(FPU_REG * ptr)
 }
 
 /* Get a long double from user memory */
-int FPU_load_extended(long double __user * s, int stnr)
+int FPU_load_extended(long double __user *s, int stnr)
 {
 	FPU_REG *sti_ptr = &st(stnr);
 
@@ -91,7 +91,7 @@ int FPU_load_extended(long double __user * s, int stnr)
 }
 
 /* Get a double from user memory */
-int FPU_load_double(double __user * dfloat, FPU_REG * loaded_data)
+int FPU_load_double(double __user *dfloat, FPU_REG *loaded_data)
 {
 	int exp, tag, negative;
 	unsigned m64, l64;
@@ -152,7 +152,7 @@ int FPU_load_double(double __user * dfloat, FPU_REG * loaded_data)
 }
 
 /* Get a float from user memory */
-int FPU_load_single(float __user * single, FPU_REG * loaded_data)
+int FPU_load_single(float __user *single, FPU_REG *loaded_data)
 {
 	unsigned m32;
 	int exp, tag, negative;
@@ -206,7 +206,7 @@ int FPU_load_single(float __user * single, FPU_REG * loaded_data)
 }
 
 /* Get a long long from user memory */
-int FPU_load_int64(long long __user * _s)
+int FPU_load_int64(long long __user *_s)
 {
 	long long s;
 	int sign;
@@ -236,7 +236,7 @@ int FPU_load_int64(long long __user * _s)
 }
 
 /* Get a long from user memory */
-int FPU_load_int32(long __user * _s, FPU_REG * loaded_data)
+int FPU_load_int32(long __user *_s, FPU_REG *loaded_data)
 {
 	long s;
 	int negative;
@@ -265,7 +265,7 @@ int FPU_load_int32(long __user * _s, FPU_REG * loaded_data)
 }
 
 /* Get a short from user memory */
-int FPU_load_int16(short __user * _s, FPU_REG * loaded_data)
+int FPU_load_int16(short __user *_s, FPU_REG *loaded_data)
 {
 	int s, negative;
 
@@ -294,7 +294,7 @@ int FPU_load_int16(short __user * _s, FPU_REG * loaded_data)
 }
 
 /* Get a packed bcd array from user memory */
-int FPU_load_bcd(u_char __user * s)
+int FPU_load_bcd(u_char __user *s)
 {
 	FPU_REG *st0_ptr = &st(0);
 	int pos;
@@ -333,7 +333,7 @@ int FPU_load_bcd(u_char __user * s)
 /*===========================================================================*/
 
 /* Put a long double into user memory */
-int FPU_store_extended(FPU_REG * st0_ptr, u_char st0_tag,
+int FPU_store_extended(FPU_REG *st0_ptr, u_char st0_tag,
 		       long double __user * d)
 {
 	/*
@@ -375,7 +375,7 @@ int FPU_store_extended(FPU_REG * st0_ptr, u_char st0_tag,
 }
 
 /* Put a double into user memory */
-int FPU_store_double(FPU_REG * st0_ptr, u_char st0_tag, double __user * dfloat)
+int FPU_store_double(FPU_REG *st0_ptr, u_char st0_tag, double __user *dfloat)
 {
 	unsigned long l[2];
 	unsigned long increment = 0;	/* avoid gcc warnings */
@@ -565,7 +565,7 @@ int FPU_store_double(FPU_REG * st0_ptr, u_char st0_tag, double __user * dfloat)
 }
 
 /* Put a float into user memory */
-int FPU_store_single(FPU_REG * st0_ptr, u_char st0_tag, float __user * single)
+int FPU_store_single(FPU_REG *st0_ptr, u_char st0_tag, float __user *single)
 {
 	long templ = 0;
 	unsigned long increment = 0;	/* avoid gcc warnings */
@@ -754,7 +754,7 @@ int FPU_store_single(FPU_REG * st0_ptr, u_char st0_tag, float __user * single)
 }
 
 /* Put a long long into user memory */
-int FPU_store_int64(FPU_REG * st0_ptr, u_char st0_tag, long long __user * d)
+int FPU_store_int64(FPU_REG *st0_ptr, u_char st0_tag, long long __user *d)
 {
 	FPU_REG t;
 	long long tll;
@@ -804,7 +804,7 @@ int FPU_store_int64(FPU_REG * st0_ptr, u_char st0_tag, long long __user * d)
 }
 
 /* Put a long into user memory */
-int FPU_store_int32(FPU_REG * st0_ptr, u_char st0_tag, long __user * d)
+int FPU_store_int32(FPU_REG *st0_ptr, u_char st0_tag, long __user *d)
 {
 	FPU_REG t;
 	int precision_loss;
@@ -850,7 +850,7 @@ int FPU_store_int32(FPU_REG * st0_ptr, u_char st0_tag, long __user * d)
 }
 
 /* Put a short into user memory */
-int FPU_store_int16(FPU_REG * st0_ptr, u_char st0_tag, short __user * d)
+int FPU_store_int16(FPU_REG *st0_ptr, u_char st0_tag, short __user *d)
 {
 	FPU_REG t;
 	int precision_loss;
@@ -896,7 +896,7 @@ int FPU_store_int16(FPU_REG * st0_ptr, u_char st0_tag, short __user * d)
 }
 
 /* Put a packed bcd array into user memory */
-int FPU_store_bcd(FPU_REG * st0_ptr, u_char st0_tag, u_char __user * d)
+int FPU_store_bcd(FPU_REG *st0_ptr, u_char st0_tag, u_char __user *d)
 {
 	FPU_REG t;
 	unsigned long long ll;
@@ -971,7 +971,7 @@ int FPU_store_bcd(FPU_REG * st0_ptr, u_char st0_tag, u_char __user * d)
 /* Overflow is signalled by a non-zero return value (in eax).
    In the case of overflow, the returned significand always has the
    largest possible value */
-int FPU_round_to_int(FPU_REG * r, u_char tag)
+int FPU_round_to_int(FPU_REG *r, u_char tag)
 {
 	u_char very_big;
 	unsigned eax;
@@ -1028,7 +1028,7 @@ int FPU_round_to_int(FPU_REG * r, u_char tag)
 
 /*===========================================================================*/
 
-u_char __user *fldenv(fpu_addr_modes addr_modes, u_char __user * s)
+u_char __user *fldenv(fpu_addr_modes addr_modes, u_char __user *s)
 {
 	unsigned short tag_word = 0;
 	u_char tag;
@@ -1121,7 +1121,7 @@ u_char __user *fldenv(fpu_addr_modes addr_modes, u_char __user * s)
 	return s;
 }
 
-void frstor(fpu_addr_modes addr_modes, u_char __user * data_address)
+void frstor(fpu_addr_modes addr_modes, u_char __user *data_address)
 {
 	int i, regnr;
 	u_char __user *s = fldenv(addr_modes, data_address);
@@ -1144,7 +1144,7 @@ void frstor(fpu_addr_modes addr_modes, u_char __user * data_address)
 
 }
 
-u_char __user *fstenv(fpu_addr_modes addr_modes, u_char __user * d)
+u_char __user *fstenv(fpu_addr_modes addr_modes, u_char __user *d)
 {
 	if ((addr_modes.default_mode == VM86) ||
 	    ((addr_modes.default_mode == PM16)
@@ -1200,7 +1200,7 @@ u_char __user *fstenv(fpu_addr_modes addr_modes, u_char __user * d)
 	return d;
 }
 
-void fsave(fpu_addr_modes addr_modes, u_char __user * data_address)
+void fsave(fpu_addr_modes addr_modes, u_char __user *data_address)
 {
 	u_char __user *d;
 	int offset = (top & 7) * 10, other = 80 - offset;
-- 
cgit v1.2.3-59-g8ed1b


From 05fccb0e3840248324a96b320562210410be73dc Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:30:12 +0100
Subject: x86: code cleanups in arch/x86/kernel/pci-gart_64.c

code cleanups:

                                       errors   lines of code   errors/KLOC
 arch/x86/kernel/pci-gart_64.c            183             748         244.6
 arch/x86/kernel/pci-gart_64.c              0             790             0

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/pci-gart_64.c | 508 +++++++++++++++++++++++-------------------
 1 file changed, 276 insertions(+), 232 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 06bcba536045..d2b46b489412 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -1,12 +1,12 @@
 /*
  * Dynamic DMA mapping support for AMD Hammer.
- * 
+ *
  * Use the integrated AGP GART in the Hammer northbridge as an IOMMU for PCI.
  * This allows to use PCI devices that only support 32bit addresses on systems
- * with more than 4GB. 
+ * with more than 4GB.
  *
  * See Documentation/DMA-mapping.txt for the interface specification.
- * 
+ *
  * Copyright 2002 Andi Kleen, SuSE Labs.
  * Subject to the GNU General Public License v2 only.
  */
@@ -37,23 +37,26 @@
 #include <asm/k8.h>
 
 static unsigned long iommu_bus_base;	/* GART remapping area (physical) */
-static unsigned long iommu_size; 	/* size of remapping area bytes */
+static unsigned long iommu_size;	/* size of remapping area bytes */
 static unsigned long iommu_pages;	/* .. and in pages */
 
-static u32 *iommu_gatt_base; 		/* Remapping table */
+static u32 *iommu_gatt_base;		/* Remapping table */
 
-/* If this is disabled the IOMMU will use an optimized flushing strategy
-   of only flushing when an mapping is reused. With it true the GART is flushed 
-   for every mapping. Problem is that doing the lazy flush seems to trigger
-   bugs with some popular PCI cards, in particular 3ware (but has been also
-   also seen with Qlogic at least). */
+/*
+ * If this is disabled the IOMMU will use an optimized flushing strategy
+ * of only flushing when an mapping is reused. With it true the GART is
+ * flushed for every mapping. Problem is that doing the lazy flush seems
+ * to trigger bugs with some popular PCI cards, in particular 3ware (but
+ * has been also also seen with Qlogic at least).
+ */
 int iommu_fullflush = 1;
 
-/* Allocation bitmap for the remapping area */ 
+/* Allocation bitmap for the remapping area: */
 static DEFINE_SPINLOCK(iommu_bitmap_lock);
-static unsigned long *iommu_gart_bitmap; /* guarded by iommu_bitmap_lock */
+/* Guarded by iommu_bitmap_lock: */
+static unsigned long *iommu_gart_bitmap;
 
-static u32 gart_unmapped_entry; 
+static u32 gart_unmapped_entry;
 
 #define GPTE_VALID    1
 #define GPTE_COHERENT 2
@@ -61,10 +64,10 @@ static u32 gart_unmapped_entry;
 	(((x) & 0xfffff000) | (((x) >> 32) << 4) | GPTE_VALID | GPTE_COHERENT)
 #define GPTE_DECODE(x) (((x) & 0xfffff000) | (((u64)(x) & 0xff0) << 28))
 
-#define to_pages(addr,size) \
+#define to_pages(addr, size) \
 	(round_up(((addr) & ~PAGE_MASK) + (size), PAGE_SIZE) >> PAGE_SHIFT)
 
-#define EMERGENCY_PAGES 32 /* = 128KB */ 
+#define EMERGENCY_PAGES 32 /* = 128KB */
 
 #ifdef CONFIG_AGP
 #define AGPEXTERN extern
@@ -77,130 +80,152 @@ AGPEXTERN int agp_memory_reserved;
 AGPEXTERN __u32 *agp_gatt_table;
 
 static unsigned long next_bit;  /* protected by iommu_bitmap_lock */
-static int need_flush; 		/* global flush state. set for each gart wrap */
+static int need_flush;		/* global flush state. set for each gart wrap */
 
-static unsigned long alloc_iommu(int size) 
-{ 	
+static unsigned long alloc_iommu(int size)
+{
 	unsigned long offset, flags;
 
-	spin_lock_irqsave(&iommu_bitmap_lock, flags);	
-	offset = find_next_zero_string(iommu_gart_bitmap,next_bit,iommu_pages,size);
+	spin_lock_irqsave(&iommu_bitmap_lock, flags);
+	offset = find_next_zero_string(iommu_gart_bitmap, next_bit,
+					iommu_pages, size);
 	if (offset == -1) {
 		need_flush = 1;
-		offset = find_next_zero_string(iommu_gart_bitmap,0,iommu_pages,size);
+		offset = find_next_zero_string(iommu_gart_bitmap, 0,
+						iommu_pages, size);
 	}
-	if (offset != -1) { 
-		set_bit_string(iommu_gart_bitmap, offset, size); 
-		next_bit = offset+size; 
-		if (next_bit >= iommu_pages) { 
+	if (offset != -1) {
+		set_bit_string(iommu_gart_bitmap, offset, size);
+		next_bit = offset+size;
+		if (next_bit >= iommu_pages) {
 			next_bit = 0;
 			need_flush = 1;
-		} 
-	} 
+		}
+	}
 	if (iommu_fullflush)
 		need_flush = 1;
-	spin_unlock_irqrestore(&iommu_bitmap_lock, flags);      
+	spin_unlock_irqrestore(&iommu_bitmap_lock, flags);
+
 	return offset;
-} 
+}
 
 static void free_iommu(unsigned long offset, int size)
-{ 
+{
 	unsigned long flags;
+
 	spin_lock_irqsave(&iommu_bitmap_lock, flags);
 	__clear_bit_string(iommu_gart_bitmap, offset, size);
 	spin_unlock_irqrestore(&iommu_bitmap_lock, flags);
-} 
+}
 
-/* 
+/*
  * Use global flush state to avoid races with multiple flushers.
  */
 static void flush_gart(void)
-{ 
+{
 	unsigned long flags;
+
 	spin_lock_irqsave(&iommu_bitmap_lock, flags);
 	if (need_flush) {
 		k8_flush_garts();
 		need_flush = 0;
-	} 
+	}
 	spin_unlock_irqrestore(&iommu_bitmap_lock, flags);
-} 
+}
 
 #ifdef CONFIG_IOMMU_LEAK
 
-#define SET_LEAK(x) if (iommu_leak_tab) \
-			iommu_leak_tab[x] = __builtin_return_address(0);
-#define CLEAR_LEAK(x) if (iommu_leak_tab) \
-			iommu_leak_tab[x] = NULL;
+#define SET_LEAK(x)							\
+	do {								\
+		if (iommu_leak_tab)					\
+			iommu_leak_tab[x] = __builtin_return_address(0);\
+	} while (0)
+
+#define CLEAR_LEAK(x)							\
+	do {								\
+		if (iommu_leak_tab)					\
+			iommu_leak_tab[x] = NULL;			\
+	} while (0)
 
 /* Debugging aid for drivers that don't free their IOMMU tables */
-static void **iommu_leak_tab; 
+static void **iommu_leak_tab;
 static int leak_trace;
 static int iommu_leak_pages = 20;
+
 static void dump_leak(void)
 {
 	int i;
-	static int dump; 
-	if (dump || !iommu_leak_tab) return;
+	static int dump;
+
+	if (dump || !iommu_leak_tab)
+		return;
 	dump = 1;
-	show_stack(NULL,NULL);
-	/* Very crude. dump some from the end of the table too */ 
-	printk("Dumping %d pages from end of IOMMU:\n", iommu_leak_pages); 
-	for (i = 0; i < iommu_leak_pages; i+=2) {
-		printk("%lu: ", iommu_pages-i);
+	show_stack(NULL, NULL);
+
+	/* Very crude. dump some from the end of the table too */
+	printk(KERN_DEBUG "Dumping %d pages from end of IOMMU:\n",
+	       iommu_leak_pages);
+	for (i = 0; i < iommu_leak_pages; i += 2) {
+		printk(KERN_DEBUG "%lu: ", iommu_pages-i);
 		printk_address((unsigned long) iommu_leak_tab[iommu_pages-i]);
-		printk("%c", (i+1)%2 == 0 ? '\n' : ' '); 
-	} 
-	printk("\n");
+		printk(KERN_CONT "%c", (i+1)%2 == 0 ? '\n' : ' ');
+	}
+	printk(KERN_DEBUG "\n");
 }
 #else
-#define SET_LEAK(x)
-#define CLEAR_LEAK(x)
+# define SET_LEAK(x)
+# define CLEAR_LEAK(x)
 #endif
 
 static void iommu_full(struct device *dev, size_t size, int dir)
 {
-	/* 
+	/*
 	 * Ran out of IOMMU space for this operation. This is very bad.
 	 * Unfortunately the drivers cannot handle this operation properly.
-	 * Return some non mapped prereserved space in the aperture and 
+	 * Return some non mapped prereserved space in the aperture and
 	 * let the Northbridge deal with it. This will result in garbage
 	 * in the IO operation. When the size exceeds the prereserved space
-	 * memory corruption will occur or random memory will be DMAed 
+	 * memory corruption will occur or random memory will be DMAed
 	 * out. Hopefully no network devices use single mappings that big.
-	 */ 
-	
-	printk(KERN_ERR 
-  "PCI-DMA: Out of IOMMU space for %lu bytes at device %s\n",
-	       size, dev->bus_id);
+	 */
+
+	printk(KERN_ERR
+		"PCI-DMA: Out of IOMMU space for %lu bytes at device %s\n",
+		size, dev->bus_id);
 
 	if (size > PAGE_SIZE*EMERGENCY_PAGES) {
 		if (dir == PCI_DMA_FROMDEVICE || dir == PCI_DMA_BIDIRECTIONAL)
 			panic("PCI-DMA: Memory would be corrupted\n");
-		if (dir == PCI_DMA_TODEVICE || dir == PCI_DMA_BIDIRECTIONAL) 
-			panic(KERN_ERR "PCI-DMA: Random memory would be DMAed\n");
-	} 
-
+		if (dir == PCI_DMA_TODEVICE || dir == PCI_DMA_BIDIRECTIONAL)
+			panic(KERN_ERR
+				"PCI-DMA: Random memory would be DMAed\n");
+	}
 #ifdef CONFIG_IOMMU_LEAK
-	dump_leak(); 
+	dump_leak();
 #endif
-} 
+}
 
-static inline int need_iommu(struct device *dev, unsigned long addr, size_t size)
-{ 
+static inline int
+need_iommu(struct device *dev, unsigned long addr, size_t size)
+{
 	u64 mask = *dev->dma_mask;
 	int high = addr + size > mask;
 	int mmu = high;
-	if (force_iommu) 
-		mmu = 1; 
-	return mmu; 
+
+	if (force_iommu)
+		mmu = 1;
+
+	return mmu;
 }
 
-static inline int nonforced_iommu(struct device *dev, unsigned long addr, size_t size)
-{ 
+static inline int
+nonforced_iommu(struct device *dev, unsigned long addr, size_t size)
+{
 	u64 mask = *dev->dma_mask;
 	int high = addr + size > mask;
 	int mmu = high;
-	return mmu; 
+
+	return mmu;
 }
 
 /* Map a single continuous physical area into the IOMMU.
@@ -208,13 +233,14 @@ static inline int nonforced_iommu(struct device *dev, unsigned long addr, size_t
  */
 static dma_addr_t dma_map_area(struct device *dev, dma_addr_t phys_mem,
 				size_t size, int dir)
-{ 
+{
 	unsigned long npages = to_pages(phys_mem, size);
 	unsigned long iommu_page = alloc_iommu(npages);
 	int i;
+
 	if (iommu_page == -1) {
 		if (!nonforced_iommu(dev, phys_mem, size))
-			return phys_mem; 
+			return phys_mem;
 		if (panic_on_overflow)
 			panic("dma_map_area overflow %lu bytes\n", size);
 		iommu_full(dev, size, dir);
@@ -229,35 +255,39 @@ static dma_addr_t dma_map_area(struct device *dev, dma_addr_t phys_mem,
 	return iommu_bus_base + iommu_page*PAGE_SIZE + (phys_mem & ~PAGE_MASK);
 }
 
-static dma_addr_t gart_map_simple(struct device *dev, char *buf,
-				 size_t size, int dir)
+static dma_addr_t
+gart_map_simple(struct device *dev, char *buf, size_t size, int dir)
 {
 	dma_addr_t map = dma_map_area(dev, virt_to_bus(buf), size, dir);
+
 	flush_gart();
+
 	return map;
 }
 
 /* Map a single area into the IOMMU */
-static dma_addr_t gart_map_single(struct device *dev, void *addr, size_t size, int dir)
+static dma_addr_t
+gart_map_single(struct device *dev, void *addr, size_t size, int dir)
 {
 	unsigned long phys_mem, bus;
 
 	if (!dev)
 		dev = &fallback_dev;
 
-	phys_mem = virt_to_phys(addr); 
+	phys_mem = virt_to_phys(addr);
 	if (!need_iommu(dev, phys_mem, size))
-		return phys_mem; 
+		return phys_mem;
 
 	bus = gart_map_simple(dev, addr, size, dir);
-	return bus; 
+
+	return bus;
 }
 
 /*
  * Free a DMA mapping.
  */
 static void gart_unmap_single(struct device *dev, dma_addr_t dma_addr,
-		      size_t size, int direction)
+			      size_t size, int direction)
 {
 	unsigned long iommu_page;
 	int npages;
@@ -266,6 +296,7 @@ static void gart_unmap_single(struct device *dev, dma_addr_t dma_addr,
 	if (dma_addr < iommu_bus_base + EMERGENCY_PAGES*PAGE_SIZE ||
 	    dma_addr >= iommu_bus_base + iommu_size)
 		return;
+
 	iommu_page = (dma_addr - iommu_bus_base)>>PAGE_SHIFT;
 	npages = to_pages(dma_addr, size);
 	for (i = 0; i < npages; i++) {
@@ -278,7 +309,8 @@ static void gart_unmap_single(struct device *dev, dma_addr_t dma_addr,
 /*
  * Wrapper for pci_unmap_single working with scatterlists.
  */
-static void gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
+static void
+gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
 {
 	struct scatterlist *s;
 	int i;
@@ -303,12 +335,13 @@ static int dma_map_sg_nonforce(struct device *dev, struct scatterlist *sg,
 
 	for_each_sg(sg, s, nents, i) {
 		unsigned long addr = sg_phys(s);
-		if (nonforced_iommu(dev, addr, s->length)) { 
+
+		if (nonforced_iommu(dev, addr, s->length)) {
 			addr = dma_map_area(dev, addr, s->length, dir);
-			if (addr == bad_dma_address) { 
-				if (i > 0) 
+			if (addr == bad_dma_address) {
+				if (i > 0)
 					gart_unmap_sg(dev, sg, i, dir);
-				nents = 0; 
+				nents = 0;
 				sg[0].dma_length = 0;
 				break;
 			}
@@ -317,15 +350,16 @@ static int dma_map_sg_nonforce(struct device *dev, struct scatterlist *sg,
 		s->dma_length = s->length;
 	}
 	flush_gart();
+
 	return nents;
 }
 
 /* Map multiple scatterlist entries continuous into the first. */
 static int __dma_map_cont(struct scatterlist *start, int nelems,
-		      struct scatterlist *sout, unsigned long pages)
+			  struct scatterlist *sout, unsigned long pages)
 {
 	unsigned long iommu_start = alloc_iommu(pages);
-	unsigned long iommu_page = iommu_start; 
+	unsigned long iommu_page = iommu_start;
 	struct scatterlist *s;
 	int i;
 
@@ -335,32 +369,33 @@ static int __dma_map_cont(struct scatterlist *start, int nelems,
 	for_each_sg(start, s, nelems, i) {
 		unsigned long pages, addr;
 		unsigned long phys_addr = s->dma_address;
-		
+
 		BUG_ON(s != start && s->offset);
 		if (s == start) {
 			sout->dma_address = iommu_bus_base;
 			sout->dma_address += iommu_page*PAGE_SIZE + s->offset;
 			sout->dma_length = s->length;
-		} else { 
-			sout->dma_length += s->length; 
+		} else {
+			sout->dma_length += s->length;
 		}
 
 		addr = phys_addr;
-		pages = to_pages(s->offset, s->length); 
-		while (pages--) { 
-			iommu_gatt_base[iommu_page] = GPTE_ENCODE(addr); 
+		pages = to_pages(s->offset, s->length);
+		while (pages--) {
+			iommu_gatt_base[iommu_page] = GPTE_ENCODE(addr);
 			SET_LEAK(iommu_page);
 			addr += PAGE_SIZE;
 			iommu_page++;
 		}
-	} 
-	BUG_ON(iommu_page - iommu_start != pages);	
+	}
+	BUG_ON(iommu_page - iommu_start != pages);
+
 	return 0;
 }
 
-static inline int dma_map_cont(struct scatterlist *start, int nelems,
-		      struct scatterlist *sout,
-		      unsigned long pages, int need)
+static inline int
+dma_map_cont(struct scatterlist *start, int nelems, struct scatterlist *sout,
+	     unsigned long pages, int need)
 {
 	if (!need) {
 		BUG_ON(nelems != 1);
@@ -370,22 +405,19 @@ static inline int dma_map_cont(struct scatterlist *start, int nelems,
 	}
 	return __dma_map_cont(start, nelems, sout, pages);
 }
-		
+
 /*
  * DMA map all entries in a scatterlist.
- * Merge chunks that have page aligned sizes into a continuous mapping. 
+ * Merge chunks that have page aligned sizes into a continuous mapping.
  */
-static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents,
-			int dir)
+static int
+gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
 {
-	int i;
-	int out;
-	int start;
-	unsigned long pages = 0;
-	int need = 0, nextneed;
 	struct scatterlist *s, *ps, *start_sg, *sgmap;
+	int need = 0, nextneed, i, out, start;
+	unsigned long pages = 0;
 
-	if (nents == 0) 
+	if (nents == 0)
 		return 0;
 
 	if (!dev)
@@ -397,15 +429,19 @@ static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents,
 	ps = NULL; /* shut up gcc */
 	for_each_sg(sg, s, nents, i) {
 		dma_addr_t addr = sg_phys(s);
+
 		s->dma_address = addr;
-		BUG_ON(s->length == 0); 
+		BUG_ON(s->length == 0);
 
-		nextneed = need_iommu(dev, addr, s->length); 
+		nextneed = need_iommu(dev, addr, s->length);
 
 		/* Handle the previous not yet processed entries */
 		if (i > start) {
-			/* Can only merge when the last chunk ends on a page 
-			   boundary and the new one doesn't have an offset. */
+			/*
+			 * Can only merge when the last chunk ends on a
+			 * page boundary and the new one doesn't have an
+			 * offset.
+			 */
 			if (!iommu_merge || !nextneed || !need || s->offset ||
 			    (ps->offset + ps->length) % PAGE_SIZE) {
 				if (dma_map_cont(start_sg, i - start, sgmap,
@@ -436,6 +472,7 @@ static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents,
 error:
 	flush_gart();
 	gart_unmap_sg(dev, sg, out, dir);
+
 	/* When it was forced or merged try again in a dumb way */
 	if (force_iommu || iommu_merge) {
 		out = dma_map_sg_nonforce(dev, sg, nents, dir);
@@ -444,64 +481,68 @@ error:
 	}
 	if (panic_on_overflow)
 		panic("dma_map_sg: overflow on %lu pages\n", pages);
+
 	iommu_full(dev, pages << PAGE_SHIFT, dir);
 	for_each_sg(sg, s, nents, i)
 		s->dma_address = bad_dma_address;
 	return 0;
-} 
+}
 
 static int no_agp;
 
 static __init unsigned long check_iommu_size(unsigned long aper, u64 aper_size)
-{ 
-	unsigned long a; 
-	if (!iommu_size) { 
-		iommu_size = aper_size; 
-		if (!no_agp) 
-			iommu_size /= 2; 
-	} 
-
-	a = aper + iommu_size; 
+{
+	unsigned long a;
+
+	if (!iommu_size) {
+		iommu_size = aper_size;
+		if (!no_agp)
+			iommu_size /= 2;
+	}
+
+	a = aper + iommu_size;
 	iommu_size -= round_up(a, LARGE_PAGE_SIZE) - a;
 
-	if (iommu_size < 64*1024*1024) 
+	if (iommu_size < 64*1024*1024) {
 		printk(KERN_WARNING
-  "PCI-DMA: Warning: Small IOMMU %luMB. Consider increasing the AGP aperture in BIOS\n",iommu_size>>20); 
-	
+			"PCI-DMA: Warning: Small IOMMU %luMB."
+			" Consider increasing the AGP aperture in BIOS\n",
+				iommu_size >> 20);
+	}
+
 	return iommu_size;
-} 
+}
 
-static __init unsigned read_aperture(struct pci_dev *dev, u32 *size) 
-{ 
-	unsigned aper_size = 0, aper_base_32;
+static __init unsigned read_aperture(struct pci_dev *dev, u32 *size)
+{
+	unsigned aper_size = 0, aper_base_32, aper_order;
 	u64 aper_base;
-	unsigned aper_order;
 
-	pci_read_config_dword(dev, 0x94, &aper_base_32); 
+	pci_read_config_dword(dev, 0x94, &aper_base_32);
 	pci_read_config_dword(dev, 0x90, &aper_order);
-	aper_order = (aper_order >> 1) & 7;	
+	aper_order = (aper_order >> 1) & 7;
 
-	aper_base = aper_base_32 & 0x7fff; 
+	aper_base = aper_base_32 & 0x7fff;
 	aper_base <<= 25;
 
-	aper_size = (32 * 1024 * 1024) << aper_order; 
-       if (aper_base + aper_size > 0x100000000UL || !aper_size)
+	aper_size = (32 * 1024 * 1024) << aper_order;
+	if (aper_base + aper_size > 0x100000000UL || !aper_size)
 		aper_base = 0;
 
 	*size = aper_size;
 	return aper_base;
-} 
+}
 
-/* 
+/*
  * Private Northbridge GATT initialization in case we cannot use the
- * AGP driver for some reason.  
+ * AGP driver for some reason.
  */
 static __init int init_k8_gatt(struct agp_kern_info *info)
-{ 
+{
+	unsigned aper_size, gatt_size, new_aper_size;
+	unsigned aper_base, new_aper_base;
 	struct pci_dev *dev;
 	void *gatt;
-	unsigned aper_base, new_aper_base;
-	unsigned aper_size, gatt_size, new_aper_size;
 	int i;
 
 	printk(KERN_INFO "PCI-DMA: Disabling AGP.\n");
@@ -509,75 +550,77 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
 	dev = NULL;
 	for (i = 0; i < num_k8_northbridges; i++) {
 		dev = k8_northbridges[i];
-		new_aper_base = read_aperture(dev, &new_aper_size); 
-		if (!new_aper_base) 
-			goto nommu; 
-		
-		if (!aper_base) { 
+		new_aper_base = read_aperture(dev, &new_aper_size);
+		if (!new_aper_base)
+			goto nommu;
+
+		if (!aper_base) {
 			aper_size = new_aper_size;
 			aper_base = new_aper_base;
-		} 
-		if (aper_size != new_aper_size || aper_base != new_aper_base) 
+		}
+		if (aper_size != new_aper_size || aper_base != new_aper_base)
 			goto nommu;
 	}
 	if (!aper_base)
-		goto nommu; 
+		goto nommu;
 	info->aper_base = aper_base;
-	info->aper_size = aper_size>>20; 
+	info->aper_size = aper_size >> 20;
 
-	gatt_size = (aper_size >> PAGE_SHIFT) * sizeof(u32); 
-	gatt = (void *)__get_free_pages(GFP_KERNEL, get_order(gatt_size)); 
-	if (!gatt) 
+	gatt_size = (aper_size >> PAGE_SHIFT) * sizeof(u32);
+	gatt = (void *)__get_free_pages(GFP_KERNEL, get_order(gatt_size));
+	if (!gatt)
 		panic("Cannot allocate GATT table");
-	if (change_page_attr_addr((unsigned long)gatt, gatt_size >> PAGE_SHIFT, PAGE_KERNEL_NOCACHE))
+	if (change_page_attr_addr((unsigned long)gatt, gatt_size >> PAGE_SHIFT,
+				  PAGE_KERNEL_NOCACHE))
 		panic("Could not set GART PTEs to uncacheable pages");
 	global_flush_tlb();
 
-	memset(gatt, 0, gatt_size); 
+	memset(gatt, 0, gatt_size);
 	agp_gatt_table = gatt;
 
 	for (i = 0; i < num_k8_northbridges; i++) {
-		u32 ctl; 
-		u32 gatt_reg; 
+		u32 gatt_reg;
+		u32 ctl;
 
 		dev = k8_northbridges[i];
-		gatt_reg = __pa(gatt) >> 12; 
-		gatt_reg <<= 4; 
+		gatt_reg = __pa(gatt) >> 12;
+		gatt_reg <<= 4;
 		pci_write_config_dword(dev, 0x98, gatt_reg);
-		pci_read_config_dword(dev, 0x90, &ctl); 
+		pci_read_config_dword(dev, 0x90, &ctl);
 
 		ctl |= 1;
 		ctl &= ~((1<<4) | (1<<5));
 
-		pci_write_config_dword(dev, 0x90, ctl); 
+		pci_write_config_dword(dev, 0x90, ctl);
 	}
 	flush_gart();
-	
-	printk("PCI-DMA: aperture base @ %x size %u KB\n",aper_base, aper_size>>10); 
+
+	printk(KERN_INFO "PCI-DMA: aperture base @ %x size %u KB\n",
+	       aper_base, aper_size>>10);
 	return 0;
 
  nommu:
- 	/* Should not happen anymore */
+	/* Should not happen anymore */
 	printk(KERN_ERR "PCI-DMA: More than 4GB of RAM and no IOMMU\n"
 	       KERN_ERR "PCI-DMA: 32bit PCI IO may malfunction.\n");
-	return -1; 
-} 
+	return -1;
+}
 
 extern int agp_amd64_init(void);
 
 static const struct dma_mapping_ops gart_dma_ops = {
-	.mapping_error = NULL,
-	.map_single = gart_map_single,
-	.map_simple = gart_map_simple,
-	.unmap_single = gart_unmap_single,
-	.sync_single_for_cpu = NULL,
-	.sync_single_for_device = NULL,
-	.sync_single_range_for_cpu = NULL,
-	.sync_single_range_for_device = NULL,
-	.sync_sg_for_cpu = NULL,
-	.sync_sg_for_device = NULL,
-	.map_sg = gart_map_sg,
-	.unmap_sg = gart_unmap_sg,
+	.mapping_error			= NULL,
+	.map_single			= gart_map_single,
+	.map_simple			= gart_map_simple,
+	.unmap_single			= gart_unmap_single,
+	.sync_single_for_cpu		= NULL,
+	.sync_single_for_device		= NULL,
+	.sync_single_range_for_cpu	= NULL,
+	.sync_single_range_for_device	= NULL,
+	.sync_sg_for_cpu		= NULL,
+	.sync_sg_for_device		= NULL,
+	.map_sg				= gart_map_sg,
+	.unmap_sg			= gart_unmap_sg,
 };
 
 void gart_iommu_shutdown(void)
@@ -588,23 +631,23 @@ void gart_iommu_shutdown(void)
 	if (no_agp && (dma_ops != &gart_dma_ops))
 		return;
 
-        for (i = 0; i < num_k8_northbridges; i++) {
-                u32 ctl;
+	for (i = 0; i < num_k8_northbridges; i++) {
+		u32 ctl;
 
-                dev = k8_northbridges[i];
-                pci_read_config_dword(dev, 0x90, &ctl);
+		dev = k8_northbridges[i];
+		pci_read_config_dword(dev, 0x90, &ctl);
 
-                ctl &= ~1;
+		ctl &= ~1;
 
-                pci_write_config_dword(dev, 0x90, ctl);
-        }
+		pci_write_config_dword(dev, 0x90, ctl);
+	}
 }
 
 void __init gart_iommu_init(void)
-{ 
+{
 	struct agp_kern_info info;
-	unsigned long aper_size;
 	unsigned long iommu_start;
+	unsigned long aper_size;
 	unsigned long scratch;
 	long i;
 
@@ -614,14 +657,14 @@ void __init gart_iommu_init(void)
 	}
 
 #ifndef CONFIG_AGP_AMD64
-	no_agp = 1; 
+	no_agp = 1;
 #else
 	/* Makefile puts PCI initialization via subsys_initcall first. */
 	/* Add other K8 AGP bridge drivers here */
-	no_agp = no_agp || 
-		(agp_amd64_init() < 0) || 
+	no_agp = no_agp ||
+		(agp_amd64_init() < 0) ||
 		(agp_copy_info(agp_bridge, &info) < 0);
-#endif	
+#endif
 
 	if (swiotlb)
 		return;
@@ -643,77 +686,78 @@ void __init gart_iommu_init(void)
 	}
 
 	printk(KERN_INFO "PCI-DMA: using GART IOMMU.\n");
-	aper_size = info.aper_size * 1024 * 1024;	
-	iommu_size = check_iommu_size(info.aper_base, aper_size); 
-	iommu_pages = iommu_size >> PAGE_SHIFT; 
-
-	iommu_gart_bitmap = (void*)__get_free_pages(GFP_KERNEL, 
-						    get_order(iommu_pages/8)); 
-	if (!iommu_gart_bitmap) 
-		panic("Cannot allocate iommu bitmap\n"); 
+	aper_size = info.aper_size * 1024 * 1024;
+	iommu_size = check_iommu_size(info.aper_base, aper_size);
+	iommu_pages = iommu_size >> PAGE_SHIFT;
+
+	iommu_gart_bitmap = (void *) __get_free_pages(GFP_KERNEL,
+						      get_order(iommu_pages/8));
+	if (!iommu_gart_bitmap)
+		panic("Cannot allocate iommu bitmap\n");
 	memset(iommu_gart_bitmap, 0, iommu_pages/8);
 
 #ifdef CONFIG_IOMMU_LEAK
-	if (leak_trace) { 
-		iommu_leak_tab = (void *)__get_free_pages(GFP_KERNEL, 
+	if (leak_trace) {
+		iommu_leak_tab = (void *)__get_free_pages(GFP_KERNEL,
 				  get_order(iommu_pages*sizeof(void *)));
-		if (iommu_leak_tab) 
-			memset(iommu_leak_tab, 0, iommu_pages * 8); 
+		if (iommu_leak_tab)
+			memset(iommu_leak_tab, 0, iommu_pages * 8);
 		else
-			printk("PCI-DMA: Cannot allocate leak trace area\n"); 
-	} 
+			printk(KERN_DEBUG
+			       "PCI-DMA: Cannot allocate leak trace area\n");
+	}
 #endif
 
-	/* 
+	/*
 	 * Out of IOMMU space handling.
-	 * Reserve some invalid pages at the beginning of the GART. 
-	 */ 
-	set_bit_string(iommu_gart_bitmap, 0, EMERGENCY_PAGES); 
+	 * Reserve some invalid pages at the beginning of the GART.
+	 */
+	set_bit_string(iommu_gart_bitmap, 0, EMERGENCY_PAGES);
 
-	agp_memory_reserved = iommu_size;	
+	agp_memory_reserved = iommu_size;
 	printk(KERN_INFO
 	       "PCI-DMA: Reserving %luMB of IOMMU area in the AGP aperture\n",
-	       iommu_size>>20); 
+	       iommu_size >> 20);
 
-	iommu_start = aper_size - iommu_size;	
-	iommu_bus_base = info.aper_base + iommu_start; 
+	iommu_start = aper_size - iommu_size;
+	iommu_bus_base = info.aper_base + iommu_start;
 	bad_dma_address = iommu_bus_base;
 	iommu_gatt_base = agp_gatt_table + (iommu_start>>PAGE_SHIFT);
 
-	/* 
+	/*
 	 * Unmap the IOMMU part of the GART. The alias of the page is
 	 * always mapped with cache enabled and there is no full cache
 	 * coherency across the GART remapping. The unmapping avoids
 	 * automatic prefetches from the CPU allocating cache lines in
 	 * there. All CPU accesses are done via the direct mapping to
 	 * the backing memory. The GART address is only used by PCI
-	 * devices. 
+	 * devices.
 	 */
 	clear_kernel_mapping((unsigned long)__va(iommu_bus_base), iommu_size);
 
-	/* 
-	 * Try to workaround a bug (thanks to BenH) 
-	 * Set unmapped entries to a scratch page instead of 0. 
+	/*
+	 * Try to workaround a bug (thanks to BenH)
+	 * Set unmapped entries to a scratch page instead of 0.
 	 * Any prefetches that hit unmapped entries won't get an bus abort
 	 * then.
 	 */
-	scratch = get_zeroed_page(GFP_KERNEL); 
-	if (!scratch) 
+	scratch = get_zeroed_page(GFP_KERNEL);
+	if (!scratch)
 		panic("Cannot allocate iommu scratch page");
 	gart_unmapped_entry = GPTE_ENCODE(__pa(scratch));
-	for (i = EMERGENCY_PAGES; i < iommu_pages; i++) 
+	for (i = EMERGENCY_PAGES; i < iommu_pages; i++)
 		iommu_gatt_base[i] = gart_unmapped_entry;
 
 	flush_gart();
 	dma_ops = &gart_dma_ops;
-} 
+}
 
 void __init gart_parse_options(char *p)
 {
 	int arg;
 
 #ifdef CONFIG_IOMMU_LEAK
-	if (!strncmp(p,"leak",4)) {
+	if (!strncmp(p, "leak", 4)) {
 		leak_trace = 1;
 		p += 4;
 		if (*p == '=') ++p;
@@ -723,18 +767,18 @@ void __init gart_parse_options(char *p)
 #endif
 	if (isdigit(*p) && get_option(&p, &arg))
 		iommu_size = arg;
-	if (!strncmp(p, "fullflush",8))
+	if (!strncmp(p, "fullflush", 8))
 		iommu_fullflush = 1;
-	if (!strncmp(p, "nofullflush",11))
+	if (!strncmp(p, "nofullflush", 11))
 		iommu_fullflush = 0;
-	if (!strncmp(p,"noagp",5))
+	if (!strncmp(p, "noagp", 5))
 		no_agp = 1;
-	if (!strncmp(p, "noaperture",10))
+	if (!strncmp(p, "noaperture", 10))
 		fix_aperture = 0;
 	/* duplicated from pci-dma.c */
-	if (!strncmp(p,"force",5))
+	if (!strncmp(p, "force", 5))
 		gart_iommu_aperture_allowed = 1;
-	if (!strncmp(p,"allowed",7))
+	if (!strncmp(p, "allowed", 7))
 		gart_iommu_aperture_allowed = 1;
 	if (!strncmp(p, "memaper", 7)) {
 		fallback_aper_force = 1;
-- 
cgit v1.2.3-59-g8ed1b


From 2f36fa13ce49ffd000249feaedfcbefbcc83a72f Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:12 +0100
Subject: x86: clean up arch/x86/kernel/e820_64.c

White space and coding style cleanup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/e820_64.c | 305 +++++++++++++++++++++++++++-------------------
 1 file changed, 177 insertions(+), 128 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index 04698e0b056c..d41cd2f01733 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * Handle the memory map.
  * The functions here do the job until bootmem takes over.
  *
@@ -29,44 +29,44 @@
 
 struct e820map e820;
 
-/* 
+/*
  * PFN of last memory page.
  */
-unsigned long end_pfn; 
+unsigned long end_pfn;
 EXPORT_SYMBOL(end_pfn);
 
-/* 
+/*
  * end_pfn only includes RAM, while end_pfn_map includes all e820 entries.
  * The direct mapping extends to end_pfn_map, so that we can directly access
  * apertures, ACPI and other tables without having to play with fixmaps.
- */ 
-unsigned long end_pfn_map; 
+ */
+unsigned long end_pfn_map;
 
-/* 
+/*
  * Last pfn which the user wants to use.
  */
 static unsigned long __initdata end_user_pfn = MAXMEM>>PAGE_SHIFT;
 
 extern struct resource code_resource, data_resource, bss_resource;
 
-/* Check for some hardcoded bad areas that early boot is not allowed to touch */ 
+/* Check for some hardcoded bad areas that early boot is not allowed to touch */
 static inline int bad_addr(unsigned long *addrp, unsigned long size)
-{ 
-	unsigned long addr = *addrp, last = addr + size; 
+{
+	unsigned long addr = *addrp, last = addr + size;
 
 	/* various gunk below that needed for SMP startup */
-	if (addr < 0x8000) { 
+	if (addr < 0x8000) {
 		*addrp = PAGE_ALIGN(0x8000);
-		return 1; 
+		return 1;
 	}
 
 	/* direct mapping tables of the kernel */
-	if (last >= table_start<<PAGE_SHIFT && addr < table_end<<PAGE_SHIFT) { 
+	if (last >= table_start<<PAGE_SHIFT && addr < table_end<<PAGE_SHIFT) {
 		*addrp = PAGE_ALIGN(table_end << PAGE_SHIFT);
 		return 1;
-	} 
+	}
 
-	/* initrd */ 
+	/* initrd */
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
 		unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
@@ -77,7 +77,7 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size)
 			*addrp = PAGE_ALIGN(ramdisk_end);
 			return 1;
 		}
-	} 
+	}
 #endif
 	/* kernel code */
 	if (last >= __pa_symbol(&_text) && addr < __pa_symbol(&_end)) {
@@ -97,9 +97,9 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size)
 		return 1;
 	}
 #endif
-	/* XXX ramdisk image here? */ 
+	/* XXX ramdisk image here? */
 	return 0;
-} 
+}
 
 /*
  * This function checks if any part of the range <start,end> is mapped
@@ -107,16 +107,18 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size)
  */
 int
 e820_any_mapped(unsigned long start, unsigned long end, unsigned type)
-{ 
+{
 	int i;
-	for (i = 0; i < e820.nr_map; i++) { 
-		struct e820entry *ei = &e820.map[i]; 
-		if (type && ei->type != type) 
+
+	for (i = 0; i < e820.nr_map; i++) {
+		struct e820entry *ei = &e820.map[i];
+
+		if (type && ei->type != type)
 			continue;
 		if (ei->addr >= end || ei->addr + ei->size <= start)
-			continue; 
-		return 1; 
-	} 
+			continue;
+		return 1;
+	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(e820_any_mapped);
@@ -127,11 +129,14 @@ EXPORT_SYMBOL_GPL(e820_any_mapped);
  * Note: this function only works correct if the e820 table is sorted and
  * not-overlapping, which is the case
  */
-int __init e820_all_mapped(unsigned long start, unsigned long end, unsigned type)
+int __init e820_all_mapped(unsigned long start, unsigned long end,
+			   unsigned type)
 {
 	int i;
+
 	for (i = 0; i < e820.nr_map; i++) {
 		struct e820entry *ei = &e820.map[i];
+
 		if (type && ei->type != type)
 			continue;
 		/* is the region (part) in overlap with the current region ?*/
@@ -143,59 +148,66 @@ int __init e820_all_mapped(unsigned long start, unsigned long end, unsigned type
 		 */
 		if (ei->addr <= start)
 			start = ei->addr + ei->size;
-		/* if start is now at or beyond end, we're done, full coverage */
+		/*
+		 * if start is now at or beyond end, we're done, full
+		 * coverage
+		 */
 		if (start >= end)
-			return 1; /* we're done */
+			return 1;
 	}
 	return 0;
 }
 
-/* 
- * Find a free area in a specific range. 
- */ 
-unsigned long __init find_e820_area(unsigned long start, unsigned long end, unsigned size) 
-{ 
-	int i; 
-	for (i = 0; i < e820.nr_map; i++) { 
-		struct e820entry *ei = &e820.map[i]; 
-		unsigned long addr = ei->addr, last; 
-		if (ei->type != E820_RAM) 
-			continue; 
-		if (addr < start) 
+/*
+ * Find a free area in a specific range.
+ */
+unsigned long __init find_e820_area(unsigned long start, unsigned long end,
+				    unsigned size)
+{
+	int i;
+
+	for (i = 0; i < e820.nr_map; i++) {
+		struct e820entry *ei = &e820.map[i];
+		unsigned long addr = ei->addr, last;
+
+		if (ei->type != E820_RAM)
+			continue;
+		if (addr < start)
 			addr = start;
-		if (addr > ei->addr + ei->size) 
-			continue; 
+		if (addr > ei->addr + ei->size)
+			continue;
 		while (bad_addr(&addr, size) && addr+size <= ei->addr+ei->size)
 			;
 		last = PAGE_ALIGN(addr) + size;
 		if (last > ei->addr + ei->size)
 			continue;
-		if (last > end) 
+		if (last > end)
 			continue;
-		return addr; 
-	} 
-	return -1UL;		
-} 
+		return addr;
+	}
+	return -1UL;
+}
 
 /*
  * Find the highest page frame number we have available
  */
 unsigned long __init e820_end_of_ram(void)
 {
-	unsigned long end_pfn = 0;
+	unsigned long end_pfn;
+
 	end_pfn = find_max_pfn_with_active_regions();
-	
-	if (end_pfn > end_pfn_map) 
+
+	if (end_pfn > end_pfn_map)
 		end_pfn_map = end_pfn;
 	if (end_pfn_map > MAXMEM>>PAGE_SHIFT)
 		end_pfn_map = MAXMEM>>PAGE_SHIFT;
 	if (end_pfn > end_user_pfn)
 		end_pfn = end_user_pfn;
-	if (end_pfn > end_pfn_map) 
-		end_pfn = end_pfn_map; 
+	if (end_pfn > end_pfn_map)
+		end_pfn = end_pfn_map;
 
-	printk("end_pfn_map = %lu\n", end_pfn_map);
-	return end_pfn;	
+	printk(KERN_INFO "end_pfn_map = %lu\n", end_pfn_map);
+	return end_pfn;
 }
 
 /*
@@ -219,9 +231,9 @@ void __init e820_reserve_resources(void)
 		request_resource(&iomem_resource, res);
 		if (e820.map[i].type == E820_RAM) {
 			/*
-			 *  We don't know which RAM region contains kernel data,
-			 *  so we try it repeatedly and let the resource manager
-			 *  test it.
+			 * We don't know which RAM region contains kernel data,
+			 * so we try it repeatedly and let the resource manager
+			 * test it.
 			 */
 			request_resource(res, &code_resource);
 			request_resource(res, &data_resource);
@@ -322,9 +334,9 @@ e820_register_active_regions(int nid, unsigned long start_pfn,
 			add_active_range(nid, ei_startpfn, ei_endpfn);
 }
 
-/* 
+/*
  * Add a memory region to the kernel e820 map.
- */ 
+ */
 void __init add_memory_region(unsigned long start, unsigned long size, int type)
 {
 	int x = e820.nr_map;
@@ -349,9 +361,7 @@ unsigned long __init e820_hole_size(unsigned long start, unsigned long end)
 {
 	unsigned long start_pfn = start >> PAGE_SHIFT;
 	unsigned long end_pfn = end >> PAGE_SHIFT;
-	unsigned long ei_startpfn;
-	unsigned long ei_endpfn;
-	unsigned long ram = 0;
+	unsigned long ei_startpfn, ei_endpfn, ram = 0;
 	int i;
 
 	for (i = 0; i < e820.nr_map; i++) {
@@ -369,22 +379,25 @@ void __init e820_print_map(char *who)
 
 	for (i = 0; i < e820.nr_map; i++) {
 		printk(KERN_INFO " %s: %016Lx - %016Lx ", who,
-			(unsigned long long) e820.map[i].addr,
-			(unsigned long long) (e820.map[i].addr + e820.map[i].size));
+		       (unsigned long long) e820.map[i].addr,
+		       (unsigned long long)
+		       (e820.map[i].addr + e820.map[i].size));
 		switch (e820.map[i].type) {
-		case E820_RAM:	printk("(usable)\n");
-				break;
+		case E820_RAM:
+			printk(KERN_CONT "(usable)\n");
+			break;
 		case E820_RESERVED:
-				printk("(reserved)\n");
-				break;
+			printk(KERN_CONT "(reserved)\n");
+			break;
 		case E820_ACPI:
-				printk("(ACPI data)\n");
-				break;
+			printk(KERN_CONT "(ACPI data)\n");
+			break;
 		case E820_NVS:
-				printk("(ACPI NVS)\n");
-				break;
-		default:	printk("type %u\n", e820.map[i].type);
-				break;
+			printk(KERN_CONT "(ACPI NVS)\n");
+			break;
+		default:
+			printk(KERN_CONT "type %u\n", e820.map[i].type);
+			break;
 		}
 	}
 }
@@ -392,11 +405,11 @@ void __init e820_print_map(char *who)
 /*
  * Sanitize the BIOS e820 map.
  *
- * Some e820 responses include overlapping entries.  The following 
+ * Some e820 responses include overlapping entries. The following
  * replaces the original e820 map with a new one, removing overlaps.
  *
  */
-static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
+static int __init sanitize_e820_map(struct e820entry *biosmap, char *pnr_map)
 {
 	struct change_member {
 		struct e820entry *pbios; /* pointer to original bios entry */
@@ -416,7 +429,8 @@ static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
 	int i;
 
 	/*
-		Visually we're performing the following (1,2,3,4 = memory types)...
+		Visually we're performing the following
+		(1,2,3,4 = memory types)...
 
 		Sample memory map (w/overlaps):
 		   ____22__________________
@@ -458,22 +472,23 @@ static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
 	old_nr = *pnr_map;
 
 	/* bail out if we find any unreasonable addresses in bios map */
-	for (i=0; i<old_nr; i++)
+	for (i = 0; i < old_nr; i++)
 		if (biosmap[i].addr + biosmap[i].size < biosmap[i].addr)
 			return -1;
 
 	/* create pointers for initial change-point information (for sorting) */
-	for (i=0; i < 2*old_nr; i++)
+	for (i = 0; i < 2 * old_nr; i++)
 		change_point[i] = &change_point_list[i];
 
 	/* record all known change-points (starting and ending addresses),
 	   omitting those that are for empty memory regions */
 	chgidx = 0;
-	for (i=0; i < old_nr; i++)	{
+	for (i = 0; i < old_nr; i++)	{
 		if (biosmap[i].size != 0) {
 			change_point[chgidx]->addr = biosmap[i].addr;
 			change_point[chgidx++]->pbios = &biosmap[i];
-			change_point[chgidx]->addr = biosmap[i].addr + biosmap[i].size;
+			change_point[chgidx]->addr = biosmap[i].addr +
+				biosmap[i].size;
 			change_point[chgidx++]->pbios = &biosmap[i];
 		}
 	}
@@ -483,75 +498,106 @@ static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
 	still_changing = 1;
 	while (still_changing)	{
 		still_changing = 0;
-		for (i=1; i < chg_nr; i++)  {
-			/* if <current_addr> > <last_addr>, swap */
-			/* or, if current=<start_addr> & last=<end_addr>, swap */
-			if ((change_point[i]->addr < change_point[i-1]->addr) ||
-				((change_point[i]->addr == change_point[i-1]->addr) &&
-				 (change_point[i]->addr == change_point[i]->pbios->addr) &&
-				 (change_point[i-1]->addr != change_point[i-1]->pbios->addr))
-			   )
-			{
+		for (i = 1; i < chg_nr; i++)  {
+			unsigned long long curaddr, lastaddr;
+			unsigned long long curpbaddr, lastpbaddr;
+
+			curaddr = change_point[i]->addr;
+			lastaddr = change_point[i - 1]->addr;
+			curpbaddr = change_point[i]->pbios->addr;
+			lastpbaddr = change_point[i - 1]->pbios->addr;
+
+			/*
+			 * swap entries, when:
+			 *
+			 * curaddr > lastaddr or
+			 * curaddr == lastaddr and curaddr == curpbaddr and
+			 * lastaddr != lastpbaddr
+			 */
+			if (curaddr < lastaddr ||
+			    (curaddr == lastaddr && curaddr == curpbaddr &&
+			     lastaddr != lastpbaddr)) {
 				change_tmp = change_point[i];
 				change_point[i] = change_point[i-1];
 				change_point[i-1] = change_tmp;
-				still_changing=1;
+				still_changing = 1;
 			}
 		}
 	}
 
 	/* create a new bios memory map, removing overlaps */
-	overlap_entries=0;	 /* number of entries in the overlap table */
-	new_bios_entry=0;	 /* index for creating new bios map entries */
+	overlap_entries = 0;	 /* number of entries in the overlap table */
+	new_bios_entry = 0;	 /* index for creating new bios map entries */
 	last_type = 0;		 /* start with undefined memory type */
 	last_addr = 0;		 /* start with 0 as last starting address */
+
 	/* loop through change-points, determining affect on the new bios map */
-	for (chgidx=0; chgidx < chg_nr; chgidx++)
-	{
+	for (chgidx = 0; chgidx < chg_nr; chgidx++) {
 		/* keep track of all overlapping bios entries */
-		if (change_point[chgidx]->addr == change_point[chgidx]->pbios->addr)
-		{
-			/* add map entry to overlap list (> 1 entry implies an overlap) */
-			overlap_list[overlap_entries++]=change_point[chgidx]->pbios;
-		}
-		else
-		{
-			/* remove entry from list (order independent, so swap with last) */
-			for (i=0; i<overlap_entries; i++)
-			{
-				if (overlap_list[i] == change_point[chgidx]->pbios)
-					overlap_list[i] = overlap_list[overlap_entries-1];
+		if (change_point[chgidx]->addr ==
+		    change_point[chgidx]->pbios->addr) {
+			/*
+			 * add map entry to overlap list (> 1 entry
+			 * implies an overlap)
+			 */
+			overlap_list[overlap_entries++] =
+				change_point[chgidx]->pbios;
+		} else {
+			/*
+			 * remove entry from list (order independent,
+			 * so swap with last)
+			 */
+			for (i = 0; i < overlap_entries; i++) {
+				if (overlap_list[i] ==
+				    change_point[chgidx]->pbios)
+					overlap_list[i] =
+						overlap_list[overlap_entries-1];
 			}
 			overlap_entries--;
 		}
-		/* if there are overlapping entries, decide which "type" to use */
-		/* (larger value takes precedence -- 1=usable, 2,3,4,4+=unusable) */
+		/*
+		 * if there are overlapping entries, decide which
+		 * "type" to use (larger value takes precedence --
+		 * 1=usable, 2,3,4,4+=unusable)
+		 */
 		current_type = 0;
-		for (i=0; i<overlap_entries; i++)
+		for (i = 0; i < overlap_entries; i++)
 			if (overlap_list[i]->type > current_type)
 				current_type = overlap_list[i]->type;
-		/* continue building up new bios map based on this information */
+		/*
+		 * continue building up new bios map based on this
+		 * information
+		 */
 		if (current_type != last_type)	{
 			if (last_type != 0)	 {
 				new_bios[new_bios_entry].size =
 					change_point[chgidx]->addr - last_addr;
-				/* move forward only if the new size was non-zero */
+				/*
+				 * move forward only if the new size
+				 * was non-zero
+				 */
 				if (new_bios[new_bios_entry].size != 0)
+					/*
+					 * no more space left for new
+					 * bios entries ?
+					 */
 					if (++new_bios_entry >= E820MAX)
-						break; 	/* no more space left for new bios entries */
+						break;
 			}
 			if (current_type != 0)	{
-				new_bios[new_bios_entry].addr = change_point[chgidx]->addr;
+				new_bios[new_bios_entry].addr =
+					change_point[chgidx]->addr;
 				new_bios[new_bios_entry].type = current_type;
-				last_addr=change_point[chgidx]->addr;
+				last_addr = change_point[chgidx]->addr;
 			}
 			last_type = current_type;
 		}
 	}
-	new_nr = new_bios_entry;   /* retain count for new bios entries */
+	/* retain count for new bios entries */
+	new_nr = new_bios_entry;
 
 	/* copy new bios mapping into original location */
-	memcpy(biosmap, new_bios, new_nr*sizeof(struct e820entry));
+	memcpy(biosmap, new_bios, new_nr * sizeof(struct e820entry));
 	*pnr_map = new_nr;
 
 	return 0;
@@ -566,7 +612,7 @@ static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
  * will have given us a memory map that we can use to properly
  * set up memory.  If we aren't, we'll fake a memory map.
  */
-static int __init copy_e820_map(struct e820entry * biosmap, int nr_map)
+static int __init copy_e820_map(struct e820entry *biosmap, int nr_map)
 {
 	/* Only one memory region (or negative)? Ignore it */
 	if (nr_map < 2)
@@ -583,7 +629,7 @@ static int __init copy_e820_map(struct e820entry * biosmap, int nr_map)
 			return -1;
 
 		add_memory_region(start, size, type);
-	} while (biosmap++,--nr_map);
+	} while (biosmap++, --nr_map);
 	return 0;
 }
 
@@ -613,9 +659,9 @@ static int __init parse_memopt(char *p)
 	if (!p)
 		return -EINVAL;
 	end_user_pfn = memparse(p, &p);
-	end_user_pfn >>= PAGE_SHIFT;	
+	end_user_pfn >>= PAGE_SHIFT;
 	return 0;
-} 
+}
 early_param("mem", parse_memopt);
 
 static int userdef __initdata;
@@ -627,9 +673,9 @@ static int __init parse_memmap_opt(char *p)
 
 	if (!strcmp(p, "exactmap")) {
 #ifdef CONFIG_CRASH_DUMP
-		/* If we are doing a crash dump, we
-		 * still need to know the real mem
-		 * size before original memory map is
+		/*
+		 * If we are doing a crash dump, we still need to know
+		 * the real mem size before original memory map is
 		 * reset.
 		 */
 		e820_register_active_regions(0, 0, -1UL);
@@ -713,8 +759,10 @@ __init void e820_setup_gap(void)
 
 	if (!found) {
 		gapstart = (end_pfn << PAGE_SHIFT) + 1024*1024;
-		printk(KERN_ERR "PCI: Warning: Cannot find a gap in the 32bit address range\n"
-		       KERN_ERR "PCI: Unassigned devices with 32bit resource registers may break!\n");
+		printk(KERN_ERR "PCI: Warning: Cannot find a gap in the 32bit "
+		       "address range\n"
+		       KERN_ERR "PCI: Unassigned devices with 32bit resource "
+		       "registers may break!\n");
 	}
 
 	/*
@@ -727,8 +775,9 @@ __init void e820_setup_gap(void)
 	/* Fun with two's complement */
 	pci_mem_start = (gapstart + round) & -round;
 
-	printk(KERN_INFO "Allocating PCI resources starting at %lx (gap: %lx:%lx)\n",
-		pci_mem_start, gapstart, gapsize);
+	printk(KERN_INFO
+	       "Allocating PCI resources starting at %lx (gap: %lx:%lx)\n",
+	       pci_mem_start, gapstart, gapsize);
 }
 
 int __init arch_get_ram_range(int slot, u64 *addr, u64 *size)
-- 
cgit v1.2.3-59-g8ed1b


From 78aa1f66f77da078357bd263fcac95fbf6bca15b Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:13 +0100
Subject: x86: clean up arch/x86/kernel/ldt_32/64.c

White space and coding style clenaup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/ldt_32.c | 60 ++++++++++++++++++++++-------------------
 arch/x86/kernel/ldt_64.c | 69 +++++++++++++++++++++++++-----------------------
 2 files changed, 69 insertions(+), 60 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ldt_32.c b/arch/x86/kernel/ldt_32.c
index 9ff90a27c45f..e366c5fd0d19 100644
--- a/arch/x86/kernel/ldt_32.c
+++ b/arch/x86/kernel/ldt_32.c
@@ -17,7 +17,7 @@
 #include <asm/desc.h>
 #include <asm/mmu_context.h>
 
-#ifdef CONFIG_SMP /* avoids "defined but not used" warnig */
+#ifdef CONFIG_SMP
 static void flush_ldt(void *null)
 {
 	if (current->active_mm)
@@ -34,19 +34,20 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
 	if (mincount <= pc->size)
 		return 0;
 	oldsize = pc->size;
-	mincount = (mincount+511)&(~511);
-	if (mincount*LDT_ENTRY_SIZE > PAGE_SIZE)
-		newldt = vmalloc(mincount*LDT_ENTRY_SIZE);
+	mincount = (mincount + 511) & (~511);
+	if (mincount * LDT_ENTRY_SIZE > PAGE_SIZE)
+		newldt = vmalloc(mincount * LDT_ENTRY_SIZE);
 	else
-		newldt = kmalloc(mincount*LDT_ENTRY_SIZE, GFP_KERNEL);
+		newldt = kmalloc(mincount * LDT_ENTRY_SIZE, GFP_KERNEL);
 
 	if (!newldt)
 		return -ENOMEM;
 
 	if (oldsize)
-		memcpy(newldt, pc->ldt, oldsize*LDT_ENTRY_SIZE);
+		memcpy(newldt, pc->ldt, oldsize * LDT_ENTRY_SIZE);
 	oldldt = pc->ldt;
-	memset(newldt+oldsize*LDT_ENTRY_SIZE, 0, (mincount-oldsize)*LDT_ENTRY_SIZE);
+	memset(newldt + oldsize * LDT_ENTRY_SIZE, 0,
+	       (mincount - oldsize) * LDT_ENTRY_SIZE);
 	pc->ldt = newldt;
 	wmb();
 	pc->size = mincount;
@@ -55,6 +56,7 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
 	if (reload) {
 #ifdef CONFIG_SMP
 		cpumask_t mask;
+
 		preempt_disable();
 		load_LDT(pc);
 		mask = cpumask_of_cpu(smp_processor_id());
@@ -66,7 +68,7 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
 #endif
 	}
 	if (oldsize) {
-		if (oldsize*LDT_ENTRY_SIZE > PAGE_SIZE)
+		if (oldsize * LDT_ENTRY_SIZE > PAGE_SIZE)
 			vfree(oldldt);
 		else
 			kfree(oldldt);
@@ -77,9 +79,10 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
 static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
 {
 	int err = alloc_ldt(new, old->size, 0);
+
 	if (err < 0)
 		return err;
-	memcpy(new->ldt, old->ldt, old->size*LDT_ENTRY_SIZE);
+	memcpy(new->ldt, old->ldt, old->size * LDT_ENTRY_SIZE);
 	return 0;
 }
 
@@ -89,7 +92,7 @@ static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
  */
 int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 {
-	struct mm_struct * old_mm;
+	struct mm_struct *old_mm;
 	int retval = 0;
 
 	mutex_init(&mm->context.lock);
@@ -111,7 +114,7 @@ void destroy_context(struct mm_struct *mm)
 	if (mm->context.size) {
 		if (mm == current->active_mm)
 			clear_LDT();
-		if (mm->context.size*LDT_ENTRY_SIZE > PAGE_SIZE)
+		if (mm->context.size * LDT_ENTRY_SIZE > PAGE_SIZE)
 			vfree(mm->context.ldt);
 		else
 			kfree(mm->context.ldt);
@@ -119,19 +122,19 @@ void destroy_context(struct mm_struct *mm)
 	}
 }
 
-static int read_ldt(void __user * ptr, unsigned long bytecount)
+static int read_ldt(void __user *ptr, unsigned long bytecount)
 {
 	int err;
 	unsigned long size;
-	struct mm_struct * mm = current->mm;
+	struct mm_struct *mm = current->mm;
 
 	if (!mm->context.size)
 		return 0;
-	if (bytecount > LDT_ENTRY_SIZE*LDT_ENTRIES)
-		bytecount = LDT_ENTRY_SIZE*LDT_ENTRIES;
+	if (bytecount > LDT_ENTRY_SIZE * LDT_ENTRIES)
+		bytecount = LDT_ENTRY_SIZE * LDT_ENTRIES;
 
 	mutex_lock(&mm->context.lock);
-	size = mm->context.size*LDT_ENTRY_SIZE;
+	size = mm->context.size * LDT_ENTRY_SIZE;
 	if (size > bytecount)
 		size = bytecount;
 
@@ -143,7 +146,7 @@ static int read_ldt(void __user * ptr, unsigned long bytecount)
 		goto error_return;
 	if (size != bytecount) {
 		/* zero-fill the rest */
-		if (clear_user(ptr+size, bytecount-size) != 0) {
+		if (clear_user(ptr + size, bytecount - size) != 0) {
 			err = -EFAULT;
 			goto error_return;
 		}
@@ -153,13 +156,13 @@ error_return:
 	return err;
 }
 
-static int read_default_ldt(void __user * ptr, unsigned long bytecount)
+static int read_default_ldt(void __user *ptr, unsigned long bytecount)
 {
 	int err;
 	unsigned long size;
 
 	err = 0;
-	size = 5*sizeof(struct desc_struct);
+	size = 5 * sizeof(struct desc_struct);
 	if (size > bytecount)
 		size = bytecount;
 
@@ -170,9 +173,9 @@ static int read_default_ldt(void __user * ptr, unsigned long bytecount)
 	return err;
 }
 
-static int write_ldt(void __user * ptr, unsigned long bytecount, int oldmode)
+static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 {
-	struct mm_struct * mm = current->mm;
+	struct mm_struct *mm = current->mm;
 	__u32 entry_1, entry_2;
 	int error;
 	struct user_desc ldt_info;
@@ -180,7 +183,7 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int oldmode)
 	error = -EINVAL;
 	if (bytecount != sizeof(ldt_info))
 		goto out;
-	error = -EFAULT; 	
+	error = -EFAULT;
 	if (copy_from_user(&ldt_info, ptr, sizeof(ldt_info)))
 		goto out;
 
@@ -196,13 +199,14 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int oldmode)
 
 	mutex_lock(&mm->context.lock);
 	if (ldt_info.entry_number >= mm->context.size) {
-		error = alloc_ldt(&current->mm->context, ldt_info.entry_number+1, 1);
+		error = alloc_ldt(&current->mm->context,
+				  ldt_info.entry_number + 1, 1);
 		if (error < 0)
 			goto out_unlock;
 	}
 
-   	/* Allow LDTs to be cleared by the user. */
-   	if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
+	/* Allow LDTs to be cleared by the user. */
+	if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
 		if (oldmode || LDT_empty(&ldt_info)) {
 			entry_1 = 0;
 			entry_2 = 0;
@@ -217,7 +221,8 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int oldmode)
 
 	/* Install the new entry ...  */
 install:
-	write_ldt_entry(mm->context.ldt, ldt_info.entry_number, entry_1, entry_2);
+	write_ldt_entry(mm->context.ldt, ldt_info.entry_number, entry_1,
+			entry_2);
 	error = 0;
 
 out_unlock:
@@ -226,7 +231,8 @@ out:
 	return error;
 }
 
-asmlinkage int sys_modify_ldt(int func, void __user *ptr, unsigned long bytecount)
+asmlinkage int sys_modify_ldt(int func, void __user *ptr,
+			      unsigned long bytecount)
 {
 	int ret = -ENOSYS;
 
diff --git a/arch/x86/kernel/ldt_64.c b/arch/x86/kernel/ldt_64.c
index 60e57abb8e90..6c41db367de8 100644
--- a/arch/x86/kernel/ldt_64.c
+++ b/arch/x86/kernel/ldt_64.c
@@ -2,7 +2,7 @@
  * Copyright (C) 1992 Krishna Balasubramanian and Linus Torvalds
  * Copyright (C) 1999 Ingo Molnar <mingo@redhat.com>
  * Copyright (C) 2002 Andi Kleen
- * 
+ *
  * This handles calls from both 32bit and 64bit mode.
  */
 
@@ -20,11 +20,11 @@
 #include <asm/desc.h>
 #include <asm/proto.h>
 
-#ifdef CONFIG_SMP /* avoids "defined but not used" warnig */
+#ifdef CONFIG_SMP
 static void flush_ldt(void *null)
 {
 	if (current->active_mm)
-               load_LDT(&current->active_mm->context);
+		load_LDT(&current->active_mm->context);
 }
 #endif
 
@@ -37,19 +37,20 @@ static int alloc_ldt(mm_context_t *pc, unsigned mincount, int reload)
 	if (mincount <= (unsigned)pc->size)
 		return 0;
 	oldsize = pc->size;
-	mincount = (mincount+511)&(~511);
-	if (mincount*LDT_ENTRY_SIZE > PAGE_SIZE)
-		newldt = vmalloc(mincount*LDT_ENTRY_SIZE);
+	mincount = (mincount + 511) & (~511);
+	if (mincount * LDT_ENTRY_SIZE > PAGE_SIZE)
+		newldt = vmalloc(mincount * LDT_ENTRY_SIZE);
 	else
-		newldt = kmalloc(mincount*LDT_ENTRY_SIZE, GFP_KERNEL);
+		newldt = kmalloc(mincount * LDT_ENTRY_SIZE, GFP_KERNEL);
 
 	if (!newldt)
 		return -ENOMEM;
 
 	if (oldsize)
-		memcpy(newldt, pc->ldt, oldsize*LDT_ENTRY_SIZE);
+		memcpy(newldt, pc->ldt, oldsize * LDT_ENTRY_SIZE);
 	oldldt = pc->ldt;
-	memset(newldt+oldsize*LDT_ENTRY_SIZE, 0, (mincount-oldsize)*LDT_ENTRY_SIZE);
+	memset(newldt + oldsize * LDT_ENTRY_SIZE, 0,
+	       (mincount - oldsize) * LDT_ENTRY_SIZE);
 	wmb();
 	pc->ldt = newldt;
 	wmb();
@@ -70,7 +71,7 @@ static int alloc_ldt(mm_context_t *pc, unsigned mincount, int reload)
 #endif
 	}
 	if (oldsize) {
-		if (oldsize*LDT_ENTRY_SIZE > PAGE_SIZE)
+		if (oldsize * LDT_ENTRY_SIZE > PAGE_SIZE)
 			vfree(oldldt);
 		else
 			kfree(oldldt);
@@ -81,9 +82,10 @@ static int alloc_ldt(mm_context_t *pc, unsigned mincount, int reload)
 static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
 {
 	int err = alloc_ldt(new, old->size, 0);
+
 	if (err < 0)
 		return err;
-	memcpy(new->ldt, old->ldt, old->size*LDT_ENTRY_SIZE);
+	memcpy(new->ldt, old->ldt, old->size * LDT_ENTRY_SIZE);
 	return 0;
 }
 
@@ -93,7 +95,7 @@ static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
  */
 int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 {
-	struct mm_struct * old_mm;
+	struct mm_struct *old_mm;
 	int retval = 0;
 
 	mutex_init(&mm->context.lock);
@@ -108,13 +110,12 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 }
 
 /*
- * 
  * Don't touch the LDT register - we're already in the next thread.
  */
 void destroy_context(struct mm_struct *mm)
 {
 	if (mm->context.size) {
-		if ((unsigned)mm->context.size*LDT_ENTRY_SIZE > PAGE_SIZE)
+		if ((unsigned)mm->context.size * LDT_ENTRY_SIZE > PAGE_SIZE)
 			vfree(mm->context.ldt);
 		else
 			kfree(mm->context.ldt);
@@ -122,19 +123,19 @@ void destroy_context(struct mm_struct *mm)
 	}
 }
 
-static int read_ldt(void __user * ptr, unsigned long bytecount)
+static int read_ldt(void __user *ptr, unsigned long bytecount)
 {
 	int err;
 	unsigned long size;
-	struct mm_struct * mm = current->mm;
+	struct mm_struct *mm = current->mm;
 
 	if (!mm->context.size)
 		return 0;
-	if (bytecount > LDT_ENTRY_SIZE*LDT_ENTRIES)
-		bytecount = LDT_ENTRY_SIZE*LDT_ENTRIES;
+	if (bytecount > LDT_ENTRY_SIZE * LDT_ENTRIES)
+		bytecount = LDT_ENTRY_SIZE * LDT_ENTRIES;
 
 	mutex_lock(&mm->context.lock);
-	size = mm->context.size*LDT_ENTRY_SIZE;
+	size = mm->context.size * LDT_ENTRY_SIZE;
 	if (size > bytecount)
 		size = bytecount;
 
@@ -146,7 +147,7 @@ static int read_ldt(void __user * ptr, unsigned long bytecount)
 		goto error_return;
 	if (size != bytecount) {
 		/* zero-fill the rest */
-		if (clear_user(ptr+size, bytecount-size) != 0) {
+		if (clear_user(ptr + size, bytecount - size) != 0) {
 			err = -EFAULT;
 			goto error_return;
 		}
@@ -156,21 +157,21 @@ error_return:
 	return err;
 }
 
-static int read_default_ldt(void __user * ptr, unsigned long bytecount)
+static int read_default_ldt(void __user *ptr, unsigned long bytecount)
 {
-	/* Arbitrary number */ 
+	/* Arbitrary number */
 	/* x86-64 default LDT is all zeros */
-	if (bytecount > 128) 
-		bytecount = 128; 	
+	if (bytecount > 128)
+		bytecount = 128;
 	if (clear_user(ptr, bytecount))
 		return -EFAULT;
-	return bytecount; 
+	return bytecount;
 }
 
-static int write_ldt(void __user * ptr, unsigned long bytecount, int oldmode)
+static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 {
 	struct task_struct *me = current;
-	struct mm_struct * mm = me->mm;
+	struct mm_struct *mm = me->mm;
 	__u32 entry_1, entry_2, *lp;
 	int error;
 	struct user_desc ldt_info;
@@ -179,7 +180,7 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int oldmode)
 
 	if (bytecount != sizeof(ldt_info))
 		goto out;
-	error = -EFAULT; 	
+	error = -EFAULT;
 	if (copy_from_user(&ldt_info, ptr, bytecount))
 		goto out;
 
@@ -195,15 +196,16 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int oldmode)
 
 	mutex_lock(&mm->context.lock);
 	if (ldt_info.entry_number >= (unsigned)mm->context.size) {
-		error = alloc_ldt(&current->mm->context, ldt_info.entry_number+1, 1);
+		error = alloc_ldt(&current->mm->context,
+				  ldt_info.entry_number + 1, 1);
 		if (error < 0)
 			goto out_unlock;
 	}
 
-	lp = (__u32 *) ((ldt_info.entry_number << 3) + (char *) mm->context.ldt);
+	lp = (__u32 *)((ldt_info.entry_number << 3) + (char *)mm->context.ldt);
 
-   	/* Allow LDTs to be cleared by the user. */
-   	if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
+	/* Allow LDTs to be cleared by the user. */
+	if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
 		if (oldmode || LDT_empty(&ldt_info)) {
 			entry_1 = 0;
 			entry_2 = 0;
@@ -228,7 +230,8 @@ out:
 	return error;
 }
 
-asmlinkage int sys_modify_ldt(int func, void __user *ptr, unsigned long bytecount)
+asmlinkage int sys_modify_ldt(int func, void __user *ptr,
+			      unsigned long bytecount)
 {
 	int ret = -ENOSYS;
 
-- 
cgit v1.2.3-59-g8ed1b


From fc2d625c4fac18e672a3b7c61af5de22d7ab7d87 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:13 +0100
Subject: x86: introduce ldt_write accessor

Create a ldt write accessor like the 32 bit one.

Preparatory patch for merging ldt.c and anyway necessary for
64bit paravirt ops.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/ldt_64.c  | 8 +++-----
 include/asm-x86/desc_64.h | 9 +++++++++
 2 files changed, 12 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ldt_64.c b/arch/x86/kernel/ldt_64.c
index 6c41db367de8..d72dc7a0636f 100644
--- a/arch/x86/kernel/ldt_64.c
+++ b/arch/x86/kernel/ldt_64.c
@@ -172,7 +172,7 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 {
 	struct task_struct *me = current;
 	struct mm_struct *mm = me->mm;
-	__u32 entry_1, entry_2, *lp;
+	__u32 entry_1, entry_2;
 	int error;
 	struct user_desc ldt_info;
 
@@ -202,8 +202,6 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 			goto out_unlock;
 	}
 
-	lp = (__u32 *)((ldt_info.entry_number << 3) + (char *)mm->context.ldt);
-
 	/* Allow LDTs to be cleared by the user. */
 	if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
 		if (oldmode || LDT_empty(&ldt_info)) {
@@ -220,8 +218,8 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 
 	/* Install the new entry ...  */
 install:
-	*lp	= entry_1;
-	*(lp+1)	= entry_2;
+	write_ldt_entry(mm->context.ldt, ldt_info.entry_number, entry_1,
+			entry_2);
 	error = 0;
 
 out_unlock:
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index bb2009ecbbca..7d48df72aef2 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -38,6 +38,15 @@ extern struct desc_struct default_ldt[];
 extern struct gate_struct idt_table[];
 extern struct desc_ptr cpu_gdt_descr[];
 
+static inline void write_ldt_entry(struct desc_struct *ldt,
+				   int entry, u32 entry_low, u32 entry_high)
+{
+	__u32 *lp = (__u32 *)((entry << 3) + (char *)ldt);
+
+	lp[0] = entry_low;
+	lp[1] = entry_high;
+}
+
 /* the cpu gdt accessor */
 #define cpu_gdt(_cpu) ((struct desc_struct *)cpu_gdt_descr[_cpu].address)
 
-- 
cgit v1.2.3-59-g8ed1b


From 70f5088dd5e9fbd3a71b3a5b01395c676158194b Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:13 +0100
Subject: x86: prepare arch/x86/kernel/ldt_32/64.c for merging

White space and coding style cleanups.

Change unsigned to int. There is no win when we compare mincount against pc->size,
which is an int as well. Casting pc->size to unsigned just might hide real problems.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/ldt_32.c |  3 +--
 arch/x86/kernel/ldt_64.c | 24 +++++++++++-------------
 2 files changed, 12 insertions(+), 15 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ldt_32.c b/arch/x86/kernel/ldt_32.c
index e366c5fd0d19..bb15753abaf2 100644
--- a/arch/x86/kernel/ldt_32.c
+++ b/arch/x86/kernel/ldt_32.c
@@ -27,8 +27,7 @@ static void flush_ldt(void *null)
 
 static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
 {
-	void *oldldt;
-	void *newldt;
+	void *oldldt, *newldt;
 	int oldsize;
 
 	if (mincount <= pc->size)
diff --git a/arch/x86/kernel/ldt_64.c b/arch/x86/kernel/ldt_64.c
index d72dc7a0636f..95903938e7ad 100644
--- a/arch/x86/kernel/ldt_64.c
+++ b/arch/x86/kernel/ldt_64.c
@@ -18,7 +18,7 @@
 #include <asm/system.h>
 #include <asm/ldt.h>
 #include <asm/desc.h>
-#include <asm/proto.h>
+#include <asm/mmu_context.h>
 
 #ifdef CONFIG_SMP
 static void flush_ldt(void *null)
@@ -28,13 +28,12 @@ static void flush_ldt(void *null)
 }
 #endif
 
-static int alloc_ldt(mm_context_t *pc, unsigned mincount, int reload)
+static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
 {
-	void *oldldt;
-	void *newldt;
-	unsigned oldsize;
+	void *oldldt, *newldt;
+	int oldsize;
 
-	if (mincount <= (unsigned)pc->size)
+	if (mincount <= pc->size)
 		return 0;
 	oldsize = pc->size;
 	mincount = (mincount + 511) & (~511);
@@ -56,13 +55,14 @@ static int alloc_ldt(mm_context_t *pc, unsigned mincount, int reload)
 	wmb();
 	pc->size = mincount;
 	wmb();
+
 	if (reload) {
 #ifdef CONFIG_SMP
 		cpumask_t mask;
 
 		preempt_disable();
-		mask = cpumask_of_cpu(smp_processor_id());
 		load_LDT(pc);
+		mask = cpumask_of_cpu(smp_processor_id());
 		if (!cpus_equal(current->mm->cpu_vm_mask, mask))
 			smp_call_function(flush_ldt, NULL, 1, 1);
 		preempt_enable();
@@ -115,7 +115,7 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 void destroy_context(struct mm_struct *mm)
 {
 	if (mm->context.size) {
-		if ((unsigned)mm->context.size * LDT_ENTRY_SIZE > PAGE_SIZE)
+		if (mm->context.size * LDT_ENTRY_SIZE > PAGE_SIZE)
 			vfree(mm->context.ldt);
 		else
 			kfree(mm->context.ldt);
@@ -170,18 +170,16 @@ static int read_default_ldt(void __user *ptr, unsigned long bytecount)
 
 static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 {
-	struct task_struct *me = current;
-	struct mm_struct *mm = me->mm;
+	struct mm_struct *mm = current->mm;
 	__u32 entry_1, entry_2;
 	int error;
 	struct user_desc ldt_info;
 
 	error = -EINVAL;
-
 	if (bytecount != sizeof(ldt_info))
 		goto out;
 	error = -EFAULT;
-	if (copy_from_user(&ldt_info, ptr, bytecount))
+	if (copy_from_user(&ldt_info, ptr, sizeof(ldt_info)))
 		goto out;
 
 	error = -EINVAL;
@@ -195,7 +193,7 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 	}
 
 	mutex_lock(&mm->context.lock);
-	if (ldt_info.entry_number >= (unsigned)mm->context.size) {
+	if (ldt_info.entry_number >= mm->context.size) {
 		error = alloc_ldt(&current->mm->context,
 				  ldt_info.entry_number + 1, 1);
 		if (error < 0)
-- 
cgit v1.2.3-59-g8ed1b


From 77e463d1040d6310211ac5162729f5d4afc4dd8c Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:14 +0100
Subject: x86: merge arch/x86/kernel/ldt_32/64.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/Makefile_32 |   2 +-
 arch/x86/kernel/Makefile_64 |   2 +-
 arch/x86/kernel/ldt.c       | 264 ++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/ldt_32.c    | 253 ------------------------------------------
 arch/x86/kernel/ldt_64.c    | 249 -----------------------------------------
 5 files changed, 266 insertions(+), 504 deletions(-)
 create mode 100644 arch/x86/kernel/ldt.c
 delete mode 100644 arch/x86/kernel/ldt_32.c
 delete mode 100644 arch/x86/kernel/ldt_64.c

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index 0cc1981d1e38..31ff982bc26b 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -6,7 +6,7 @@ extra-y := head_32.o init_task.o vmlinux.lds
 CPPFLAGS_vmlinux.lds += -Ui386
 
 obj-y	:= process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
-		ptrace_32.o time_32.o ioport_32.o ldt_32.o setup_32.o i8259_32.o sys_i386_32.o \
+		ptrace_32.o time_32.o ioport_32.o ldt.o setup_32.o i8259_32.o sys_i386_32.o \
 		pci-dma_32.o i386_ksyms_32.o i387_32.o bootflag.o e820_32.o\
 		quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o io_delay.o
 
diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index 08a68f0d8fda..9cb3df27c413 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -7,7 +7,7 @@ CPPFLAGS_vmlinux.lds += -Ux86_64
 EXTRA_AFLAGS	:= -traditional
 
 obj-y	:= process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
-		ptrace_64.o time_64.o ioport_64.o ldt_64.o setup_64.o i8259_64.o sys_x86_64.o \
+		ptrace_64.o time_64.o ioport_64.o ldt.o setup_64.o i8259_64.o sys_x86_64.o \
 		x8664_ksyms_64.o i387_64.o syscall_64.o vsyscall_64.o \
 		setup64.o bootflag.o e820_64.o reboot_64.o quirks.o i8237.o \
 		pci-dma_64.o pci-nommu_64.o alternative.o hpet.o tsc_64.o bugs_64.o \
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
new file mode 100644
index 000000000000..a8cdca3615bf
--- /dev/null
+++ b/arch/x86/kernel/ldt.c
@@ -0,0 +1,264 @@
+/*
+ * Copyright (C) 1992 Krishna Balasubramanian and Linus Torvalds
+ * Copyright (C) 1999 Ingo Molnar <mingo@redhat.com>
+ * Copyright (C) 2002 Andi Kleen
+ *
+ * This handles calls from both 32bit and 64bit mode.
+ */
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/ldt.h>
+#include <asm/desc.h>
+#include <asm/mmu_context.h>
+
+#ifdef CONFIG_SMP
+static void flush_ldt(void *null)
+{
+	if (current->active_mm)
+		load_LDT(&current->active_mm->context);
+}
+#endif
+
+static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
+{
+	void *oldldt, *newldt;
+	int oldsize;
+
+	if (mincount <= pc->size)
+		return 0;
+	oldsize = pc->size;
+	mincount = (mincount + 511) & (~511);
+	if (mincount * LDT_ENTRY_SIZE > PAGE_SIZE)
+		newldt = vmalloc(mincount * LDT_ENTRY_SIZE);
+	else
+		newldt = kmalloc(mincount * LDT_ENTRY_SIZE, GFP_KERNEL);
+
+	if (!newldt)
+		return -ENOMEM;
+
+	if (oldsize)
+		memcpy(newldt, pc->ldt, oldsize * LDT_ENTRY_SIZE);
+	oldldt = pc->ldt;
+	memset(newldt + oldsize * LDT_ENTRY_SIZE, 0,
+	       (mincount - oldsize) * LDT_ENTRY_SIZE);
+
+#ifdef CONFIG_X86_64
+	/* CHECKME: Do we really need this ? */
+	wmb();
+#endif
+	pc->ldt = newldt;
+	wmb();
+	pc->size = mincount;
+	wmb();
+
+	if (reload) {
+#ifdef CONFIG_SMP
+		cpumask_t mask;
+
+		preempt_disable();
+		load_LDT(pc);
+		mask = cpumask_of_cpu(smp_processor_id());
+		if (!cpus_equal(current->mm->cpu_vm_mask, mask))
+			smp_call_function(flush_ldt, NULL, 1, 1);
+		preempt_enable();
+#else
+		load_LDT(pc);
+#endif
+	}
+	if (oldsize) {
+		if (oldsize * LDT_ENTRY_SIZE > PAGE_SIZE)
+			vfree(oldldt);
+		else
+			kfree(oldldt);
+	}
+	return 0;
+}
+
+static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
+{
+	int err = alloc_ldt(new, old->size, 0);
+
+	if (err < 0)
+		return err;
+	memcpy(new->ldt, old->ldt, old->size * LDT_ENTRY_SIZE);
+	return 0;
+}
+
+/*
+ * we do not have to muck with descriptors here, that is
+ * done in switch_mm() as needed.
+ */
+int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+{
+	struct mm_struct *old_mm;
+	int retval = 0;
+
+	mutex_init(&mm->context.lock);
+	mm->context.size = 0;
+	old_mm = current->mm;
+	if (old_mm && old_mm->context.size > 0) {
+		mutex_lock(&old_mm->context.lock);
+		retval = copy_ldt(&mm->context, &old_mm->context);
+		mutex_unlock(&old_mm->context.lock);
+	}
+	return retval;
+}
+
+/*
+ * No need to lock the MM as we are the last user
+ *
+ * 64bit: Don't touch the LDT register - we're already in the next thread.
+ */
+void destroy_context(struct mm_struct *mm)
+{
+	if (mm->context.size) {
+#ifdef CONFIG_X86_32
+		/* CHECKME: Can this ever happen ? */
+		if (mm == current->active_mm)
+			clear_LDT();
+#endif
+		if (mm->context.size * LDT_ENTRY_SIZE > PAGE_SIZE)
+			vfree(mm->context.ldt);
+		else
+			kfree(mm->context.ldt);
+		mm->context.size = 0;
+	}
+}
+
+static int read_ldt(void __user *ptr, unsigned long bytecount)
+{
+	int err;
+	unsigned long size;
+	struct mm_struct *mm = current->mm;
+
+	if (!mm->context.size)
+		return 0;
+	if (bytecount > LDT_ENTRY_SIZE * LDT_ENTRIES)
+		bytecount = LDT_ENTRY_SIZE * LDT_ENTRIES;
+
+	mutex_lock(&mm->context.lock);
+	size = mm->context.size * LDT_ENTRY_SIZE;
+	if (size > bytecount)
+		size = bytecount;
+
+	err = 0;
+	if (copy_to_user(ptr, mm->context.ldt, size))
+		err = -EFAULT;
+	mutex_unlock(&mm->context.lock);
+	if (err < 0)
+		goto error_return;
+	if (size != bytecount) {
+		/* zero-fill the rest */
+		if (clear_user(ptr + size, bytecount - size) != 0) {
+			err = -EFAULT;
+			goto error_return;
+		}
+	}
+	return bytecount;
+error_return:
+	return err;
+}
+
+static int read_default_ldt(void __user *ptr, unsigned long bytecount)
+{
+	/* CHECKME: Can we use _one_ random number ? */
+#ifdef CONFIG_X86_32
+	unsigned long size = 5 * sizeof(struct desc_struct);
+#else
+	unsigned long size = 128;
+#endif
+	if (bytecount > size)
+		bytecount = size;
+	if (clear_user(ptr, bytecount))
+		return -EFAULT;
+	return bytecount;
+}
+
+static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
+{
+	struct mm_struct *mm = current->mm;
+	__u32 entry_1, entry_2;
+	int error;
+	struct user_desc ldt_info;
+
+	error = -EINVAL;
+	if (bytecount != sizeof(ldt_info))
+		goto out;
+	error = -EFAULT;
+	if (copy_from_user(&ldt_info, ptr, sizeof(ldt_info)))
+		goto out;
+
+	error = -EINVAL;
+	if (ldt_info.entry_number >= LDT_ENTRIES)
+		goto out;
+	if (ldt_info.contents == 3) {
+		if (oldmode)
+			goto out;
+		if (ldt_info.seg_not_present == 0)
+			goto out;
+	}
+
+	mutex_lock(&mm->context.lock);
+	if (ldt_info.entry_number >= mm->context.size) {
+		error = alloc_ldt(&current->mm->context,
+				  ldt_info.entry_number + 1, 1);
+		if (error < 0)
+			goto out_unlock;
+	}
+
+	/* Allow LDTs to be cleared by the user. */
+	if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
+		if (oldmode || LDT_empty(&ldt_info)) {
+			entry_1 = 0;
+			entry_2 = 0;
+			goto install;
+		}
+	}
+
+	entry_1 = LDT_entry_a(&ldt_info);
+	entry_2 = LDT_entry_b(&ldt_info);
+	if (oldmode)
+		entry_2 &= ~(1 << 20);
+
+	/* Install the new entry ...  */
+install:
+	write_ldt_entry(mm->context.ldt, ldt_info.entry_number, entry_1,
+			entry_2);
+	error = 0;
+
+out_unlock:
+	mutex_unlock(&mm->context.lock);
+out:
+	return error;
+}
+
+asmlinkage int sys_modify_ldt(int func, void __user *ptr,
+			      unsigned long bytecount)
+{
+	int ret = -ENOSYS;
+
+	switch (func) {
+	case 0:
+		ret = read_ldt(ptr, bytecount);
+		break;
+	case 1:
+		ret = write_ldt(ptr, bytecount, 1);
+		break;
+	case 2:
+		ret = read_default_ldt(ptr, bytecount);
+		break;
+	case 0x11:
+		ret = write_ldt(ptr, bytecount, 0);
+		break;
+	}
+	return ret;
+}
diff --git a/arch/x86/kernel/ldt_32.c b/arch/x86/kernel/ldt_32.c
deleted file mode 100644
index bb15753abaf2..000000000000
--- a/arch/x86/kernel/ldt_32.c
+++ /dev/null
@@ -1,253 +0,0 @@
-/*
- * Copyright (C) 1992 Krishna Balasubramanian and Linus Torvalds
- * Copyright (C) 1999 Ingo Molnar <mingo@redhat.com>
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/vmalloc.h>
-#include <linux/slab.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/ldt.h>
-#include <asm/desc.h>
-#include <asm/mmu_context.h>
-
-#ifdef CONFIG_SMP
-static void flush_ldt(void *null)
-{
-	if (current->active_mm)
-		load_LDT(&current->active_mm->context);
-}
-#endif
-
-static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
-{
-	void *oldldt, *newldt;
-	int oldsize;
-
-	if (mincount <= pc->size)
-		return 0;
-	oldsize = pc->size;
-	mincount = (mincount + 511) & (~511);
-	if (mincount * LDT_ENTRY_SIZE > PAGE_SIZE)
-		newldt = vmalloc(mincount * LDT_ENTRY_SIZE);
-	else
-		newldt = kmalloc(mincount * LDT_ENTRY_SIZE, GFP_KERNEL);
-
-	if (!newldt)
-		return -ENOMEM;
-
-	if (oldsize)
-		memcpy(newldt, pc->ldt, oldsize * LDT_ENTRY_SIZE);
-	oldldt = pc->ldt;
-	memset(newldt + oldsize * LDT_ENTRY_SIZE, 0,
-	       (mincount - oldsize) * LDT_ENTRY_SIZE);
-	pc->ldt = newldt;
-	wmb();
-	pc->size = mincount;
-	wmb();
-
-	if (reload) {
-#ifdef CONFIG_SMP
-		cpumask_t mask;
-
-		preempt_disable();
-		load_LDT(pc);
-		mask = cpumask_of_cpu(smp_processor_id());
-		if (!cpus_equal(current->mm->cpu_vm_mask, mask))
-			smp_call_function(flush_ldt, NULL, 1, 1);
-		preempt_enable();
-#else
-		load_LDT(pc);
-#endif
-	}
-	if (oldsize) {
-		if (oldsize * LDT_ENTRY_SIZE > PAGE_SIZE)
-			vfree(oldldt);
-		else
-			kfree(oldldt);
-	}
-	return 0;
-}
-
-static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
-{
-	int err = alloc_ldt(new, old->size, 0);
-
-	if (err < 0)
-		return err;
-	memcpy(new->ldt, old->ldt, old->size * LDT_ENTRY_SIZE);
-	return 0;
-}
-
-/*
- * we do not have to muck with descriptors here, that is
- * done in switch_mm() as needed.
- */
-int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
-{
-	struct mm_struct *old_mm;
-	int retval = 0;
-
-	mutex_init(&mm->context.lock);
-	mm->context.size = 0;
-	old_mm = current->mm;
-	if (old_mm && old_mm->context.size > 0) {
-		mutex_lock(&old_mm->context.lock);
-		retval = copy_ldt(&mm->context, &old_mm->context);
-		mutex_unlock(&old_mm->context.lock);
-	}
-	return retval;
-}
-
-/*
- * No need to lock the MM as we are the last user
- */
-void destroy_context(struct mm_struct *mm)
-{
-	if (mm->context.size) {
-		if (mm == current->active_mm)
-			clear_LDT();
-		if (mm->context.size * LDT_ENTRY_SIZE > PAGE_SIZE)
-			vfree(mm->context.ldt);
-		else
-			kfree(mm->context.ldt);
-		mm->context.size = 0;
-	}
-}
-
-static int read_ldt(void __user *ptr, unsigned long bytecount)
-{
-	int err;
-	unsigned long size;
-	struct mm_struct *mm = current->mm;
-
-	if (!mm->context.size)
-		return 0;
-	if (bytecount > LDT_ENTRY_SIZE * LDT_ENTRIES)
-		bytecount = LDT_ENTRY_SIZE * LDT_ENTRIES;
-
-	mutex_lock(&mm->context.lock);
-	size = mm->context.size * LDT_ENTRY_SIZE;
-	if (size > bytecount)
-		size = bytecount;
-
-	err = 0;
-	if (copy_to_user(ptr, mm->context.ldt, size))
-		err = -EFAULT;
-	mutex_unlock(&mm->context.lock);
-	if (err < 0)
-		goto error_return;
-	if (size != bytecount) {
-		/* zero-fill the rest */
-		if (clear_user(ptr + size, bytecount - size) != 0) {
-			err = -EFAULT;
-			goto error_return;
-		}
-	}
-	return bytecount;
-error_return:
-	return err;
-}
-
-static int read_default_ldt(void __user *ptr, unsigned long bytecount)
-{
-	int err;
-	unsigned long size;
-
-	err = 0;
-	size = 5 * sizeof(struct desc_struct);
-	if (size > bytecount)
-		size = bytecount;
-
-	err = size;
-	if (clear_user(ptr, size))
-		err = -EFAULT;
-
-	return err;
-}
-
-static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
-{
-	struct mm_struct *mm = current->mm;
-	__u32 entry_1, entry_2;
-	int error;
-	struct user_desc ldt_info;
-
-	error = -EINVAL;
-	if (bytecount != sizeof(ldt_info))
-		goto out;
-	error = -EFAULT;
-	if (copy_from_user(&ldt_info, ptr, sizeof(ldt_info)))
-		goto out;
-
-	error = -EINVAL;
-	if (ldt_info.entry_number >= LDT_ENTRIES)
-		goto out;
-	if (ldt_info.contents == 3) {
-		if (oldmode)
-			goto out;
-		if (ldt_info.seg_not_present == 0)
-			goto out;
-	}
-
-	mutex_lock(&mm->context.lock);
-	if (ldt_info.entry_number >= mm->context.size) {
-		error = alloc_ldt(&current->mm->context,
-				  ldt_info.entry_number + 1, 1);
-		if (error < 0)
-			goto out_unlock;
-	}
-
-	/* Allow LDTs to be cleared by the user. */
-	if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
-		if (oldmode || LDT_empty(&ldt_info)) {
-			entry_1 = 0;
-			entry_2 = 0;
-			goto install;
-		}
-	}
-
-	entry_1 = LDT_entry_a(&ldt_info);
-	entry_2 = LDT_entry_b(&ldt_info);
-	if (oldmode)
-		entry_2 &= ~(1 << 20);
-
-	/* Install the new entry ...  */
-install:
-	write_ldt_entry(mm->context.ldt, ldt_info.entry_number, entry_1,
-			entry_2);
-	error = 0;
-
-out_unlock:
-	mutex_unlock(&mm->context.lock);
-out:
-	return error;
-}
-
-asmlinkage int sys_modify_ldt(int func, void __user *ptr,
-			      unsigned long bytecount)
-{
-	int ret = -ENOSYS;
-
-	switch (func) {
-	case 0:
-		ret = read_ldt(ptr, bytecount);
-		break;
-	case 1:
-		ret = write_ldt(ptr, bytecount, 1);
-		break;
-	case 2:
-		ret = read_default_ldt(ptr, bytecount);
-		break;
-	case 0x11:
-		ret = write_ldt(ptr, bytecount, 0);
-		break;
-	}
-	return ret;
-}
diff --git a/arch/x86/kernel/ldt_64.c b/arch/x86/kernel/ldt_64.c
deleted file mode 100644
index 95903938e7ad..000000000000
--- a/arch/x86/kernel/ldt_64.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * Copyright (C) 1992 Krishna Balasubramanian and Linus Torvalds
- * Copyright (C) 1999 Ingo Molnar <mingo@redhat.com>
- * Copyright (C) 2002 Andi Kleen
- *
- * This handles calls from both 32bit and 64bit mode.
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/vmalloc.h>
-#include <linux/slab.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/ldt.h>
-#include <asm/desc.h>
-#include <asm/mmu_context.h>
-
-#ifdef CONFIG_SMP
-static void flush_ldt(void *null)
-{
-	if (current->active_mm)
-		load_LDT(&current->active_mm->context);
-}
-#endif
-
-static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
-{
-	void *oldldt, *newldt;
-	int oldsize;
-
-	if (mincount <= pc->size)
-		return 0;
-	oldsize = pc->size;
-	mincount = (mincount + 511) & (~511);
-	if (mincount * LDT_ENTRY_SIZE > PAGE_SIZE)
-		newldt = vmalloc(mincount * LDT_ENTRY_SIZE);
-	else
-		newldt = kmalloc(mincount * LDT_ENTRY_SIZE, GFP_KERNEL);
-
-	if (!newldt)
-		return -ENOMEM;
-
-	if (oldsize)
-		memcpy(newldt, pc->ldt, oldsize * LDT_ENTRY_SIZE);
-	oldldt = pc->ldt;
-	memset(newldt + oldsize * LDT_ENTRY_SIZE, 0,
-	       (mincount - oldsize) * LDT_ENTRY_SIZE);
-	wmb();
-	pc->ldt = newldt;
-	wmb();
-	pc->size = mincount;
-	wmb();
-
-	if (reload) {
-#ifdef CONFIG_SMP
-		cpumask_t mask;
-
-		preempt_disable();
-		load_LDT(pc);
-		mask = cpumask_of_cpu(smp_processor_id());
-		if (!cpus_equal(current->mm->cpu_vm_mask, mask))
-			smp_call_function(flush_ldt, NULL, 1, 1);
-		preempt_enable();
-#else
-		load_LDT(pc);
-#endif
-	}
-	if (oldsize) {
-		if (oldsize * LDT_ENTRY_SIZE > PAGE_SIZE)
-			vfree(oldldt);
-		else
-			kfree(oldldt);
-	}
-	return 0;
-}
-
-static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
-{
-	int err = alloc_ldt(new, old->size, 0);
-
-	if (err < 0)
-		return err;
-	memcpy(new->ldt, old->ldt, old->size * LDT_ENTRY_SIZE);
-	return 0;
-}
-
-/*
- * we do not have to muck with descriptors here, that is
- * done in switch_mm() as needed.
- */
-int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
-{
-	struct mm_struct *old_mm;
-	int retval = 0;
-
-	mutex_init(&mm->context.lock);
-	mm->context.size = 0;
-	old_mm = current->mm;
-	if (old_mm && old_mm->context.size > 0) {
-		mutex_lock(&old_mm->context.lock);
-		retval = copy_ldt(&mm->context, &old_mm->context);
-		mutex_unlock(&old_mm->context.lock);
-	}
-	return retval;
-}
-
-/*
- * Don't touch the LDT register - we're already in the next thread.
- */
-void destroy_context(struct mm_struct *mm)
-{
-	if (mm->context.size) {
-		if (mm->context.size * LDT_ENTRY_SIZE > PAGE_SIZE)
-			vfree(mm->context.ldt);
-		else
-			kfree(mm->context.ldt);
-		mm->context.size = 0;
-	}
-}
-
-static int read_ldt(void __user *ptr, unsigned long bytecount)
-{
-	int err;
-	unsigned long size;
-	struct mm_struct *mm = current->mm;
-
-	if (!mm->context.size)
-		return 0;
-	if (bytecount > LDT_ENTRY_SIZE * LDT_ENTRIES)
-		bytecount = LDT_ENTRY_SIZE * LDT_ENTRIES;
-
-	mutex_lock(&mm->context.lock);
-	size = mm->context.size * LDT_ENTRY_SIZE;
-	if (size > bytecount)
-		size = bytecount;
-
-	err = 0;
-	if (copy_to_user(ptr, mm->context.ldt, size))
-		err = -EFAULT;
-	mutex_unlock(&mm->context.lock);
-	if (err < 0)
-		goto error_return;
-	if (size != bytecount) {
-		/* zero-fill the rest */
-		if (clear_user(ptr + size, bytecount - size) != 0) {
-			err = -EFAULT;
-			goto error_return;
-		}
-	}
-	return bytecount;
-error_return:
-	return err;
-}
-
-static int read_default_ldt(void __user *ptr, unsigned long bytecount)
-{
-	/* Arbitrary number */
-	/* x86-64 default LDT is all zeros */
-	if (bytecount > 128)
-		bytecount = 128;
-	if (clear_user(ptr, bytecount))
-		return -EFAULT;
-	return bytecount;
-}
-
-static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
-{
-	struct mm_struct *mm = current->mm;
-	__u32 entry_1, entry_2;
-	int error;
-	struct user_desc ldt_info;
-
-	error = -EINVAL;
-	if (bytecount != sizeof(ldt_info))
-		goto out;
-	error = -EFAULT;
-	if (copy_from_user(&ldt_info, ptr, sizeof(ldt_info)))
-		goto out;
-
-	error = -EINVAL;
-	if (ldt_info.entry_number >= LDT_ENTRIES)
-		goto out;
-	if (ldt_info.contents == 3) {
-		if (oldmode)
-			goto out;
-		if (ldt_info.seg_not_present == 0)
-			goto out;
-	}
-
-	mutex_lock(&mm->context.lock);
-	if (ldt_info.entry_number >= mm->context.size) {
-		error = alloc_ldt(&current->mm->context,
-				  ldt_info.entry_number + 1, 1);
-		if (error < 0)
-			goto out_unlock;
-	}
-
-	/* Allow LDTs to be cleared by the user. */
-	if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
-		if (oldmode || LDT_empty(&ldt_info)) {
-			entry_1 = 0;
-			entry_2 = 0;
-			goto install;
-		}
-	}
-
-	entry_1 = LDT_entry_a(&ldt_info);
-	entry_2 = LDT_entry_b(&ldt_info);
-	if (oldmode)
-		entry_2 &= ~(1 << 20);
-
-	/* Install the new entry ...  */
-install:
-	write_ldt_entry(mm->context.ldt, ldt_info.entry_number, entry_1,
-			entry_2);
-	error = 0;
-
-out_unlock:
-	mutex_unlock(&mm->context.lock);
-out:
-	return error;
-}
-
-asmlinkage int sys_modify_ldt(int func, void __user *ptr,
-			      unsigned long bytecount)
-{
-	int ret = -ENOSYS;
-
-	switch (func) {
-	case 0:
-		ret = read_ldt(ptr, bytecount);
-		break;
-	case 1:
-		ret = write_ldt(ptr, bytecount, 1);
-		break;
-	case 2:
-		ret = read_default_ldt(ptr, bytecount);
-		break;
-	case 0x11:
-		ret = write_ldt(ptr, bytecount, 0);
-		break;
-	}
-	return ret;
-}
-- 
cgit v1.2.3-59-g8ed1b


From 37e650c7c8a27de533d409b53c29f4135dcc7af6 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:14 +0100
Subject: x86: rename get_maxlvt to lapic_get_maxlvt

Use the same name for the 32 and 64 bit variant.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/apic_64.c    | 12 ++++++------
 arch/x86/kernel/io_apic_64.c |  2 +-
 arch/x86/kernel/smpboot_64.c |  2 +-
 include/asm-x86/apic_64.h    |  2 +-
 4 files changed, 9 insertions(+), 9 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index fa6cdee6d303..dfeda91fa80c 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -160,7 +160,7 @@ void enable_NMI_through_LVT0 (void * dummy)
 	apic_write(APIC_LVT0, v);
 }
 
-int get_maxlvt(void)
+int lapic_get_maxlvt(void)
 {
 	unsigned int v, maxlvt;
 
@@ -194,7 +194,7 @@ void clear_local_APIC(void)
 	int maxlvt;
 	unsigned int v;
 
-	maxlvt = get_maxlvt();
+	maxlvt = lapic_get_maxlvt();
 
 	/*
 	 * Masking an LVT entry can trigger a local APIC error
@@ -333,7 +333,7 @@ int __init verify_local_APIC(void)
 	reg1 = GET_APIC_VERSION(reg0);
 	if (reg1 == 0x00 || reg1 == 0xff)
 		return 0;
-	reg1 = get_maxlvt();
+	reg1 = lapic_get_maxlvt();
 	if (reg1 < 0x02 || reg1 == 0xff)
 		return 0;
 
@@ -519,7 +519,7 @@ void __cpuinit setup_local_APIC (void)
 
 	{
 		unsigned oldvalue;
-		maxlvt = get_maxlvt();
+		maxlvt = lapic_get_maxlvt();
 		oldvalue = apic_read(APIC_ESR);
 		value = ERROR_APIC_VECTOR;      // enables sending errors
 		apic_write(APIC_LVTERR, value);
@@ -571,7 +571,7 @@ static int lapic_suspend(struct sys_device *dev, pm_message_t state)
 	if (!apic_pm_state.active)
 		return 0;
 
-	maxlvt = get_maxlvt();
+	maxlvt = lapic_get_maxlvt();
 
 	apic_pm_state.apic_id = apic_read(APIC_ID);
 	apic_pm_state.apic_taskpri = apic_read(APIC_TASKPRI);
@@ -605,7 +605,7 @@ static int lapic_resume(struct sys_device *dev)
 	if (!apic_pm_state.active)
 		return 0;
 
-	maxlvt = get_maxlvt();
+	maxlvt = lapic_get_maxlvt();
 
 	local_irq_save(flags);
 	rdmsr(MSR_IA32_APICBASE, l, h);
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index 23a3ac06a23e..d4f5286101a9 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -1069,7 +1069,7 @@ void __apicdebuginit print_local_APIC(void * dummy)
 	v = apic_read(APIC_LVR);
 	printk(KERN_INFO "... APIC VERSION: %08x\n", v);
 	ver = GET_APIC_VERSION(v);
-	maxlvt = get_maxlvt();
+	maxlvt = lapic_get_maxlvt();
 
 	v = apic_read(APIC_TASKPRI);
 	printk(KERN_DEBUG "... APIC TASKPRI: %08x (%02x)\n", v, v & APIC_TPRI_MASK);
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index aaf4e1291217..8147b7d4db63 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -466,7 +466,7 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta
 	 */
 	Dprintk("#startup loops: %d.\n", num_starts);
 
-	maxlvt = get_maxlvt();
+	maxlvt = lapic_get_maxlvt();
 
 	for (j = 1; j <= num_starts; j++) {
 		Dprintk("Sending STARTUP #%d.\n",j);
diff --git a/include/asm-x86/apic_64.h b/include/asm-x86/apic_64.h
index 9a0ec02a49a1..b5f850f25114 100644
--- a/include/asm-x86/apic_64.h
+++ b/include/asm-x86/apic_64.h
@@ -64,7 +64,7 @@ static inline void ack_APIC_irq(void)
 	apic_write(APIC_EOI, 0);
 }
 
-extern int get_maxlvt(void);
+extern int lapic_get_maxlvt(void);
 extern void clear_local_APIC(void);
 extern void connect_bsp_APIC(void);
 extern void disconnect_bsp_APIC(int virt_wire_setup);
-- 
cgit v1.2.3-59-g8ed1b


From 3c6bb07ac1b4174318606a26f0de8ceb9f6d8133 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:15 +0100
Subject: x86: use u32 for safe_apic_wait_icr_idle()

Preperatory patch for merging apic headers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/apic_64.c    |  4 ++--
 arch/x86/kernel/smpboot_64.c | 11 ++++++-----
 include/asm-x86/apic_64.h    |  2 +-
 3 files changed, 9 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index dfeda91fa80c..3de3764a862c 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -135,9 +135,9 @@ void apic_wait_icr_idle(void)
 		cpu_relax();
 }
 
-unsigned int safe_apic_wait_icr_idle(void)
+u32 safe_apic_wait_icr_idle(void)
 {
-	unsigned int send_status;
+	u32 send_status;
 	int timeout;
 
 	timeout = 0;
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index 8147b7d4db63..b36d32ff0b39 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -384,19 +384,20 @@ static void inquire_remote_apic(int apicid)
 	unsigned i, regs[] = { APIC_ID >> 4, APIC_LVR >> 4, APIC_SPIV >> 4 };
 	char *names[] = { "ID", "VERSION", "SPIV" };
 	int timeout;
-	unsigned int status;
+	u32 status;
 
 	printk(KERN_INFO "Inquiring remote APIC #%d...\n", apicid);
 
 	for (i = 0; i < ARRAY_SIZE(regs); i++) {
-		printk("... APIC #%d %s: ", apicid, names[i]);
+		printk(KERN_INFO "... APIC #%d %s: ", apicid, names[i]);
 
 		/*
 		 * Wait for idle.
 		 */
 		status = safe_apic_wait_icr_idle();
 		if (status)
-			printk("a previous APIC delivery may have failed\n");
+			printk(KERN_CONT
+			       "a previous APIC delivery may have failed\n");
 
 		apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(apicid));
 		apic_write(APIC_ICR, APIC_DM_REMRD | regs[i]);
@@ -410,10 +411,10 @@ static void inquire_remote_apic(int apicid)
 		switch (status) {
 		case APIC_ICR_RR_VALID:
 			status = apic_read(APIC_RRR);
-			printk("%08x\n", status);
+			printk(KERN_CONT "%08x\n", status);
 			break;
 		default:
-			printk("failed\n");
+			printk(KERN_CONT "failed\n");
 		}
 	}
 }
diff --git a/include/asm-x86/apic_64.h b/include/asm-x86/apic_64.h
index b5f850f25114..7bfad0224178 100644
--- a/include/asm-x86/apic_64.h
+++ b/include/asm-x86/apic_64.h
@@ -49,7 +49,7 @@ static __inline unsigned int apic_read(unsigned long reg)
 }
 
 extern void apic_wait_icr_idle(void);
-extern unsigned int safe_apic_wait_icr_idle(void);
+extern u32 safe_apic_wait_icr_idle(void);
 
 static inline void ack_APIC_irq(void)
 {
-- 
cgit v1.2.3-59-g8ed1b


From 42e0a9aa5d467188687c6b705412578e53c14af6 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:15 +0100
Subject: x86: use u32 for some lapic functions

Use u32 so 32 and 64bit have the same interface.

Andrew Morton: xen, lguest build fixes

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/apic_32.c  |  4 ++--
 arch/x86/lguest/boot.c     |  4 ++--
 arch/x86/xen/enlighten.c   |  4 ++--
 include/asm-x86/apic_32.h  | 16 +++++++---------
 include/asm-x86/apic_64.h  |  6 +++---
 include/asm-x86/paravirt.h | 12 ++++++------
 6 files changed, 22 insertions(+), 24 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index a56c782653be..3a069acb270c 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -135,9 +135,9 @@ void apic_wait_icr_idle(void)
 		cpu_relax();
 }
 
-unsigned long safe_apic_wait_icr_idle(void)
+u32 safe_apic_wait_icr_idle(void)
 {
-	unsigned long send_status;
+	u32 send_status;
 	int timeout;
 
 	timeout = 0;
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 92c56117eae5..df04bf884dd4 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -788,11 +788,11 @@ static void lguest_wbinvd(void)
  * code qualifies for Advanced.  It will also never interrupt anything.  It
  * does, however, allow us to get through the Linux boot code. */
 #ifdef CONFIG_X86_LOCAL_APIC
-static void lguest_apic_write(unsigned long reg, unsigned long v)
+static void lguest_apic_write(unsigned long reg, u32 v)
 {
 }
 
-static unsigned long lguest_apic_read(unsigned long reg)
+static u32 lguest_apic_read(unsigned long reg)
 {
 	return 0;
 }
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 79ad15252150..00829401389e 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -521,12 +521,12 @@ static void xen_io_delay(void)
 }
 
 #ifdef CONFIG_X86_LOCAL_APIC
-static unsigned long xen_apic_read(unsigned long reg)
+static u32 xen_apic_read(unsigned long reg)
 {
 	return 0;
 }
 
-static void xen_apic_write(unsigned long reg, unsigned long val)
+static void xen_apic_write(unsigned long reg, u32 val)
 {
 	/* Warn to see if there's any stray references */
 	WARN_ON(1);
diff --git a/include/asm-x86/apic_32.h b/include/asm-x86/apic_32.h
index f909e2daf226..649e9a6f6683 100644
--- a/include/asm-x86/apic_32.h
+++ b/include/asm-x86/apic_32.h
@@ -51,25 +51,23 @@ extern int local_apic_timer_disabled;
 #define setup_secondary_clock setup_secondary_APIC_clock
 #endif
 
-static __inline fastcall void native_apic_write(unsigned long reg,
-						unsigned long v)
+static __inline fastcall void native_apic_write(unsigned long reg, u32 v)
 {
-	*((volatile unsigned long *)(APIC_BASE+reg)) = v;
+	*((volatile u32 *)(APIC_BASE + reg)) = v;
 }
 
-static __inline fastcall void native_apic_write_atomic(unsigned long reg,
-						       unsigned long v)
+static __inline fastcall void native_apic_write_atomic(unsigned long reg, u32 v)
 {
-	xchg((volatile unsigned long *)(APIC_BASE+reg), v);
+	(void) xchg((u32 *)(APIC_BASE + reg), v);
 }
 
-static __inline fastcall unsigned long native_apic_read(unsigned long reg)
+static __inline fastcall u32 native_apic_read(unsigned long reg)
 {
-	return *((volatile unsigned long *)(APIC_BASE+reg));
+	return *((volatile u32 *)(APIC_BASE + reg));
 }
 
 extern void apic_wait_icr_idle(void);
-extern unsigned long safe_apic_wait_icr_idle(void);
+extern u32 safe_apic_wait_icr_idle(void);
 extern int get_physical_broadcast(void);
 
 #ifdef CONFIG_X86_GOOD_APIC
diff --git a/include/asm-x86/apic_64.h b/include/asm-x86/apic_64.h
index 7bfad0224178..9d0c06c4df91 100644
--- a/include/asm-x86/apic_64.h
+++ b/include/asm-x86/apic_64.h
@@ -38,14 +38,14 @@ struct pt_regs;
  * Basic functions accessing APICs.
  */
 
-static __inline void apic_write(unsigned long reg, unsigned int v)
+static __inline void apic_write(unsigned long reg, u32 v)
 {
 	*((volatile unsigned int *)(APIC_BASE+reg)) = v;
 }
 
-static __inline unsigned int apic_read(unsigned long reg)
+static __inline u32 apic_read(unsigned long reg)
 {
-	return *((volatile unsigned int *)(APIC_BASE+reg));
+	return *((volatile u32 *)(APIC_BASE+reg));
 }
 
 extern void apic_wait_icr_idle(void);
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index f59d370c5df4..19fd3e67b08c 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -150,9 +150,9 @@ struct pv_apic_ops {
 	 * Direct APIC operations, principally for VMI.  Ideally
 	 * these shouldn't be in this interface.
 	 */
-	void (*apic_write)(unsigned long reg, unsigned long v);
-	void (*apic_write_atomic)(unsigned long reg, unsigned long v);
-	unsigned long (*apic_read)(unsigned long reg);
+	void (*apic_write)(unsigned long reg, u32 v);
+	void (*apic_write_atomic)(unsigned long reg, u32 v);
+	u32 (*apic_read)(unsigned long reg);
 	void (*setup_boot_clock)(void);
 	void (*setup_secondary_clock)(void);
 
@@ -690,17 +690,17 @@ static inline void slow_down_io(void) {
 /*
  * Basic functions accessing APICs.
  */
-static inline void apic_write(unsigned long reg, unsigned long v)
+static inline void apic_write(unsigned long reg, u32 v)
 {
 	PVOP_VCALL2(pv_apic_ops.apic_write, reg, v);
 }
 
-static inline void apic_write_atomic(unsigned long reg, unsigned long v)
+static inline void apic_write_atomic(unsigned long reg, u32 v)
 {
 	PVOP_VCALL2(pv_apic_ops.apic_write_atomic, reg, v);
 }
 
-static inline unsigned long apic_read(unsigned long reg)
+static inline u32 apic_read(unsigned long reg)
 {
 	return PVOP_CALL1(unsigned long, pv_apic_ops.apic_read, reg);
 }
-- 
cgit v1.2.3-59-g8ed1b


From 376ff0352c24a5fa47f1250dd60937b5a9077672 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:16 +0100
Subject: x86: move acpi and pci declarations

Move acpi/pci related declarations to the correct headers
and remove the duplicate.

Build fix from: Andrew Morton

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/setup_32.c | 3 +--
 arch/x86/kernel/setup_64.c | 2 --
 include/asm-x86/acpi_32.h  | 2 --
 include/asm-x86/pci.h      | 4 +++-
 include/asm-x86/proto.h    | 3 ---
 5 files changed, 4 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 51bdc0b1b72e..236d30b264d8 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -44,6 +44,7 @@
 #include <linux/crash_dump.h>
 #include <linux/dmi.h>
 #include <linux/pfn.h>
+#include <linux/pci.h>
 
 #include <video/edid.h>
 
@@ -663,9 +664,7 @@ void __init setup_arch(char **cmdline_p)
 	acpi_boot_table_init();
 #endif
 
-#ifdef CONFIG_PCI
 	early_quirks();
-#endif
 
 #ifdef CONFIG_ACPI
 	acpi_boot_init();
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index ec976edf0399..97a497652d20 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -407,9 +407,7 @@ void __init setup_arch(char **cmdline_p)
 	reserve_crashkernel();
 	paging_init();
 
-#ifdef CONFIG_PCI
 	early_quirks();
-#endif
 
 	/*
 	 * set this early, so we dont allocate cpu0
diff --git a/include/asm-x86/acpi_32.h b/include/asm-x86/acpi_32.h
index 723493e6c851..3cce5a0f2d9c 100644
--- a/include/asm-x86/acpi_32.h
+++ b/include/asm-x86/acpi_32.h
@@ -81,8 +81,6 @@ int __acpi_release_global_lock(unsigned int *lock);
         :"=r"(n_hi), "=r"(n_lo)     \
         :"0"(n_hi), "1"(n_lo))
 
-extern void early_quirks(void);
-
 #ifdef CONFIG_ACPI
 extern int acpi_lapic;
 extern int acpi_ioapic;
diff --git a/include/asm-x86/pci.h b/include/asm-x86/pci.h
index e88361966347..6983730d86fd 100644
--- a/include/asm-x86/pci.h
+++ b/include/asm-x86/pci.h
@@ -66,6 +66,7 @@ extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
 
 
 #ifdef CONFIG_PCI
+extern void early_quirks(void);
 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 					enum pci_dma_burst_strategy *strat,
 					unsigned long *strategy_parameter)
@@ -73,9 +74,10 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 	*strat = PCI_DMA_BURST_INFINITY;
 	*strategy_parameter = ~0UL;
 }
+#else
+static inline void early_quirks(void) { }
 #endif
 
-
 #endif  /* __KERNEL__ */
 
 #ifdef CONFIG_X86_32
diff --git a/include/asm-x86/proto.h b/include/asm-x86/proto.h
index dabba55f7ed8..64fe816ea37a 100644
--- a/include/asm-x86/proto.h
+++ b/include/asm-x86/proto.h
@@ -58,8 +58,6 @@ extern void show_registers(struct pt_regs *regs);
 
 extern void exception_table_check(void);
 
-extern void acpi_reserve_bootmem(void);
-
 extern void swap_low_mappings(void);
 
 extern void __show_regs(struct pt_regs * regs);
@@ -69,7 +67,6 @@ extern void syscall32_cpu_init(void);
 
 extern void setup_node_bootmem(int nodeid, unsigned long start, unsigned long end);
 
-extern void early_quirks(void);
 extern void check_efer(void);
 
 extern void select_idle_routine(const struct cpuinfo_x86 *c);
-- 
cgit v1.2.3-59-g8ed1b


From 8c61b900ebb8ec5918ffd776ba1a61a5f022566d Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:16 +0100
Subject: x86: make early_indentify_cpu static

early_indentify_cpu is only used in setup_64.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/setup_64.c | 4 +++-
 include/asm-x86/proto.h    | 2 --
 2 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 97a497652d20..0e2bffe2e203 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -141,6 +141,8 @@ struct resource bss_resource = {
 	.flags = IORESOURCE_RAM,
 };
 
+static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c);
+
 #ifdef CONFIG_PROC_VMCORE
 /* elfcorehdr= specifies the location of elf core header
  * stored by the crashed kernel. This option will be passed
@@ -844,7 +846,7 @@ struct cpu_model_info {
 /* Do some early cpuid on the boot CPU to get some parameter that are
    needed before check_bugs. Everything advanced is in identify_cpu
    below. */
-void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
+static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
 {
 	u32 tfms;
 
diff --git a/include/asm-x86/proto.h b/include/asm-x86/proto.h
index 64fe816ea37a..9e3d51fd91a2 100644
--- a/include/asm-x86/proto.h
+++ b/include/asm-x86/proto.h
@@ -40,8 +40,6 @@ extern int nohpet;
 
 extern void early_printk(const char *fmt, ...) __attribute__((format(printf,1,2)));
 
-extern void early_identify_cpu(struct cpuinfo_x86 *c);
-
 extern int k8_scan_nodes(unsigned long start, unsigned long end);
 
 extern void numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn);
-- 
cgit v1.2.3-59-g8ed1b


From c9ff03428f24219b927d9d9d3c0c581622967794 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:16 +0100
Subject: x86: move k8 related declarations

Move k8 related declarations to k8.h and fix numa_64.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/numa_64.c   | 1 +
 include/asm-x86/k8.h    | 1 +
 include/asm-x86/proto.h | 2 --
 3 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 3d6926ba8995..2d8fdc05f415 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -17,6 +17,7 @@
 #include <asm/dma.h>
 #include <asm/numa.h>
 #include <asm/acpi.h>
+#include <asm/k8.h>
 
 #ifndef Dprintk
 #define Dprintk(x...)
diff --git a/include/asm-x86/k8.h b/include/asm-x86/k8.h
index 699dd6961eda..452e2b696ff4 100644
--- a/include/asm-x86/k8.h
+++ b/include/asm-x86/k8.h
@@ -10,5 +10,6 @@ extern struct pci_dev **k8_northbridges;
 extern int num_k8_northbridges;
 extern int cache_k8_northbridges(void);
 extern void k8_flush_garts(void);
+extern int k8_scan_nodes(unsigned long start, unsigned long end);
 
 #endif
diff --git a/include/asm-x86/proto.h b/include/asm-x86/proto.h
index 77b4177d17f5..9b96dae5b7ac 100644
--- a/include/asm-x86/proto.h
+++ b/include/asm-x86/proto.h
@@ -40,8 +40,6 @@ extern int nohpet;
 
 extern void early_printk(const char *fmt, ...) __attribute__((format(printf,1,2)));
 
-extern int k8_scan_nodes(unsigned long start, unsigned long end);
-
 extern void numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn);
 extern unsigned long numa_free_all_bootmem(void);
 
-- 
cgit v1.2.3-59-g8ed1b


From 718fc13b4675470ea191522ef98b02a55d990fa1 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:17 +0100
Subject: x86: move debug related declarations to kdebug.h

Move them and fixup some users.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/e820_64.c      | 1 +
 arch/x86/kernel/head64.c       | 1 +
 arch/x86/kernel/process_32.c   | 1 +
 arch/x86/mm/init_64.c          | 1 +
 include/asm-x86/arch_hooks.h   | 5 +----
 include/asm-x86/kdebug.h       | 5 +++++
 include/asm-x86/processor_32.h | 1 -
 include/asm-x86/proto.h        | 8 --------
 include/asm-x86/system_32.h    | 1 -
 9 files changed, 10 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index d41cd2f01733..e510cfd5bb71 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -26,6 +26,7 @@
 #include <asm/proto.h>
 #include <asm/setup.h>
 #include <asm/sections.h>
+#include <asm/kdebug.h>
 
 struct e820map e820;
 
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 6b3469311e42..d156bfbffa9a 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -19,6 +19,7 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 #include <asm/sections.h>
+#include <asm/kdebug.h>
 
 static void __init zap_identity_mappings(void)
 {
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index a63d2d2556ee..a8cdd09ad53f 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -55,6 +55,7 @@
 
 #include <asm/tlbflush.h>
 #include <asm/cpu.h>
+#include <asm/kdebug.h>
 
 asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
 
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 0f9c8c890658..9677abb6cf8a 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -43,6 +43,7 @@
 #include <asm/proto.h>
 #include <asm/smp.h>
 #include <asm/sections.h>
+#include <asm/kdebug.h>
 
 #ifndef Dprintk
 #define Dprintk(x...)
diff --git a/include/asm-x86/arch_hooks.h b/include/asm-x86/arch_hooks.h
index a8c1fca9726d..768aee8a04ef 100644
--- a/include/asm-x86/arch_hooks.h
+++ b/include/asm-x86/arch_hooks.h
@@ -6,7 +6,7 @@
 /*
  *	linux/include/asm/arch_hooks.h
  *
- *	define the architecture specific hooks 
+ *	define the architecture specific hooks
  */
 
 /* these aren't arch hooks, they are generic routines
@@ -24,7 +24,4 @@ extern void trap_init_hook(void);
 extern void time_init_hook(void);
 extern void mca_nmi_hook(void);
 
-extern int setup_early_printk(char *);
-extern void early_printk(const char *fmt, ...) __attribute__((format(printf,1,2)));
-
 #endif
diff --git a/include/asm-x86/kdebug.h b/include/asm-x86/kdebug.h
index e2f9b62e535e..49e5c91d490c 100644
--- a/include/asm-x86/kdebug.h
+++ b/include/asm-x86/kdebug.h
@@ -22,10 +22,15 @@ enum die_val {
 	DIE_PAGE_FAULT,
 };
 
+extern void early_printk(const char *fmt, ...) __attribute__((format(printf,1,2)));
 extern void printk_address(unsigned long address);
 extern void die(const char *,struct pt_regs *,long);
 extern void __die(const char *,struct pt_regs *,long);
 extern void show_registers(struct pt_regs *regs);
+extern void __show_registers(struct pt_regs *, int all);
+extern void show_trace(struct task_struct *, struct pt_regs *, unsigned long *);
+extern void __show_regs(struct pt_regs *regs);
+extern void show_regs(struct pt_regs *regs);
 extern void dump_pagetable(unsigned long);
 extern unsigned long oops_begin(void);
 extern void oops_end(unsigned long);
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index 13976b086837..58880a1ddd65 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -423,7 +423,6 @@ extern void prepare_to_copy(struct task_struct *tsk);
 extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
 
 extern unsigned long thread_saved_pc(struct task_struct *tsk);
-void show_trace(struct task_struct *task, struct pt_regs *regs, unsigned long *stack);
 
 unsigned long get_wchan(struct task_struct *p);
 
diff --git a/include/asm-x86/proto.h b/include/asm-x86/proto.h
index 9b96dae5b7ac..b10cd1b82089 100644
--- a/include/asm-x86/proto.h
+++ b/include/asm-x86/proto.h
@@ -38,8 +38,6 @@ extern u32 pmtmr_ioport;
 #endif
 extern int nohpet;
 
-extern void early_printk(const char *fmt, ...) __attribute__((format(printf,1,2)));
-
 extern void numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn);
 extern unsigned long numa_free_all_bootmem(void);
 
@@ -49,16 +47,10 @@ extern void load_gs_index(unsigned gs);
 
 extern unsigned long end_pfn_map; 
 
-extern void show_trace(struct task_struct *, struct pt_regs *, unsigned long * rsp);
-extern void show_registers(struct pt_regs *regs);
-
 extern void exception_table_check(void);
 
 extern void swap_low_mappings(void);
 
-extern void __show_regs(struct pt_regs * regs);
-extern void show_regs(struct pt_regs * regs);
-
 extern void syscall32_cpu_init(void);
 
 extern void setup_node_bootmem(int nodeid, unsigned long start, unsigned long end);
diff --git a/include/asm-x86/system_32.h b/include/asm-x86/system_32.h
index ef8468883bac..db6283eb5e46 100644
--- a/include/asm-x86/system_32.h
+++ b/include/asm-x86/system_32.h
@@ -315,6 +315,5 @@ extern unsigned long arch_align_stack(unsigned long sp);
 extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
 
 void default_idle(void);
-void __show_registers(struct pt_regs *, int all);
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From af7a78e9258ffcca681e080cbc857f854869144f Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:17 +0100
Subject: x86: move mce related declarations

Move the mce related declarations where they belong, fix the
users and remove 32bit dependency in mce.h

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/setup_64.c |  1 +
 include/asm-x86/mce.h      | 14 +++++++-------
 include/asm-x86/proto.h    |  1 -
 3 files changed, 8 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 0e2bffe2e203..a84a4efc7fe6 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -59,6 +59,7 @@
 #include <asm/sections.h>
 #include <asm/dmi.h>
 #include <asm/cacheflush.h>
+#include <asm/mce.h>
 
 /*
  * Machine setup..
diff --git a/include/asm-x86/mce.h b/include/asm-x86/mce.h
index df304fd89c27..e6ff507a73b0 100644
--- a/include/asm-x86/mce.h
+++ b/include/asm-x86/mce.h
@@ -85,14 +85,7 @@ struct mce_log {
 #ifdef __KERNEL__
 
 #ifdef CONFIG_X86_32
-#ifdef CONFIG_X86_MCE
-extern void mcheck_init(struct cpuinfo_x86 *c);
-#else
-#define mcheck_init(c) do {} while(0)
-#endif
-
 extern int mce_disabled;
-
 #else /* CONFIG_X86_32 */
 
 #include <asm/atomic.h>
@@ -121,6 +114,13 @@ extern int mce_notify_user(void);
 
 #endif /* !CONFIG_X86_32 */
 
+
+
+#ifdef CONFIG_X86_MCE
+extern void mcheck_init(struct cpuinfo_x86 *c);
+#else
+#define mcheck_init(c) do { } while (0)
+#endif
 extern void stop_mce(void);
 extern void restart_mce(void);
 
diff --git a/include/asm-x86/proto.h b/include/asm-x86/proto.h
index b10cd1b82089..02420dea73c6 100644
--- a/include/asm-x86/proto.h
+++ b/include/asm-x86/proto.h
@@ -13,7 +13,6 @@ extern void pda_init(int);
 
 extern void early_idt_handler(void);
 
-extern void mcheck_init(struct cpuinfo_x86 *c);
 extern void init_memory_mapping(unsigned long start, unsigned long end);
 
 extern void system_call(void); 
-- 
cgit v1.2.3-59-g8ed1b


From aaa64e04f9af8c05a10ab3d67df44154742d15cf Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:17 +0100
Subject: x86: move numa related declarations

More stuff shuffeled to the correct place

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/init_64.c     | 1 +
 include/asm-x86/numa_64.h | 6 ++++++
 include/asm-x86/proto.h   | 5 -----
 3 files changed, 7 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 9677abb6cf8a..0fbb657a8b19 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -44,6 +44,7 @@
 #include <asm/smp.h>
 #include <asm/sections.h>
 #include <asm/kdebug.h>
+#include <asm/numa.h>
 
 #ifndef Dprintk
 #define Dprintk(x...)
diff --git a/include/asm-x86/numa_64.h b/include/asm-x86/numa_64.h
index 0cc5c97a7fc9..e6bc0b5dfe3a 100644
--- a/include/asm-x86/numa_64.h
+++ b/include/asm-x86/numa_64.h
@@ -21,6 +21,12 @@ extern void srat_reserve_add_area(int nodeid);
 extern int hotadd_percent;
 
 extern unsigned char apicid_to_node[MAX_LOCAL_APIC];
+
+extern void numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn);
+extern unsigned long numa_free_all_bootmem(void);
+extern void setup_node_bootmem(int nodeid, unsigned long start,
+			       unsigned long end);
+
 #ifdef CONFIG_NUMA
 extern void __init init_cpu_to_node(void);
 
diff --git a/include/asm-x86/proto.h b/include/asm-x86/proto.h
index 02420dea73c6..71a419c6e041 100644
--- a/include/asm-x86/proto.h
+++ b/include/asm-x86/proto.h
@@ -37,9 +37,6 @@ extern u32 pmtmr_ioport;
 #endif
 extern int nohpet;
 
-extern void numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn);
-extern unsigned long numa_free_all_bootmem(void);
-
 extern void reserve_bootmem_generic(unsigned long phys, unsigned len);
 
 extern void load_gs_index(unsigned gs);
@@ -52,8 +49,6 @@ extern void swap_low_mappings(void);
 
 extern void syscall32_cpu_init(void);
 
-extern void setup_node_bootmem(int nodeid, unsigned long start, unsigned long end);
-
 extern void check_efer(void);
 
 extern unsigned long table_start, table_end;
-- 
cgit v1.2.3-59-g8ed1b


From 70a20025632ca320316b5068326784d07c8ff351 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:18 +0100
Subject: x86: move pmtmr related declarations

Move more stuff out of proto.h

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/apic_64.c    | 1 +
 arch/x86/kernel/pmtimer_64.c | 4 ++--
 include/asm-x86/proto.h      | 9 ---------
 include/linux/acpi_pmtmr.h   | 2 ++
 4 files changed, 5 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 3de3764a862c..0cb14d4c2c5c 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -26,6 +26,7 @@
 #include <linux/module.h>
 #include <linux/ioport.h>
 #include <linux/clockchips.h>
+#include <linux/acpi_pmtmr.h>
 
 #include <asm/atomic.h>
 #include <asm/smp.h>
diff --git a/arch/x86/kernel/pmtimer_64.c b/arch/x86/kernel/pmtimer_64.c
index ae8f91214f15..b112406f1996 100644
--- a/arch/x86/kernel/pmtimer_64.c
+++ b/arch/x86/kernel/pmtimer_64.c
@@ -19,13 +19,13 @@
 #include <linux/time.h>
 #include <linux/init.h>
 #include <linux/cpumask.h>
+#include <linux/acpi_pmtmr.h>
+
 #include <asm/io.h>
 #include <asm/proto.h>
 #include <asm/msr.h>
 #include <asm/vsyscall.h>
 
-#define ACPI_PM_MASK 0xFFFFFF /* limit it to 24 bits */
-
 static inline u32 cyc2us(u32 cycles)
 {
 	/* The Power Management Timer ticks at 3.579545 ticks per microsecond.
diff --git a/include/asm-x86/proto.h b/include/asm-x86/proto.h
index a47e526716f4..9074aa7ebc65 100644
--- a/include/asm-x86/proto.h
+++ b/include/asm-x86/proto.h
@@ -25,15 +25,6 @@ extern void ia32_sysenter_target(void);
 extern void config_acpi_tables(void);
 extern void ia32_syscall(void);
 
-extern int pmtimer_mark_offset(void);
-extern void pmtimer_resume(void);
-extern void pmtimer_wait(unsigned);
-extern unsigned int do_gettimeoffset_pm(void);
-#ifdef CONFIG_X86_PM_TIMER
-extern u32 pmtmr_ioport;
-#else
-#define pmtmr_ioport 0
-#endif
 extern int nohpet;
 
 extern void reserve_bootmem_generic(unsigned long phys, unsigned len);
diff --git a/include/linux/acpi_pmtmr.h b/include/linux/acpi_pmtmr.h
index 1d0ef1ae8036..7e3d2859be50 100644
--- a/include/linux/acpi_pmtmr.h
+++ b/include/linux/acpi_pmtmr.h
@@ -25,6 +25,8 @@ static inline u32 acpi_pm_read_early(void)
 	return acpi_pm_read_verified() & ACPI_PM_MASK;
 }
 
+extern void pmtimer_wait(unsigned);
+
 #else
 
 static inline u32 acpi_pm_read_early(void)
-- 
cgit v1.2.3-59-g8ed1b


From eaf76e8b93dd5e7a53e2cd6db53f3ca18ca0fe4c Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:19 +0100
Subject: x86: remove duplicate start_kernel declaration

start_kernel is already declared in a generic header file.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/head64.c | 1 +
 include/asm-x86/proto.h  | 2 --
 2 files changed, 1 insertion(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index d156bfbffa9a..6643f3f994fb 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -10,6 +10,7 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/percpu.h>
+#include <linux/start_kernel.h>
 
 #include <asm/processor.h>
 #include <asm/proto.h>
diff --git a/include/asm-x86/proto.h b/include/asm-x86/proto.h
index 4eddf2761804..5a45478b5d3a 100644
--- a/include/asm-x86/proto.h
+++ b/include/asm-x86/proto.h
@@ -8,8 +8,6 @@
 struct cpuinfo_x86; 
 struct pt_regs;
 
-extern void start_kernel(void);
-
 extern void early_idt_handler(void);
 
 extern void init_memory_mapping(unsigned long start, unsigned long end);
-- 
cgit v1.2.3-59-g8ed1b


From 3e35a0e525253837fc0ea4d0e060de3302bd9537 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:19 +0100
Subject: x86: move ioapic code where it belongs

The commit 399287229c775a8962a852a761d65dc9475dec7c hacked the
ioapic resource mapping into apic.c for no good reason.
Move the code into io_apic_64.c where it belongs.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/apic_64.c    | 87 ------------------------------------------
 arch/x86/kernel/io_apic_64.c | 90 ++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/setup_64.c   |  1 +
 include/asm-x86/io_apic_64.h |  2 +
 4 files changed, 93 insertions(+), 87 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 0cb14d4c2c5c..e0191cdd6f7a 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -49,7 +49,6 @@ static int apic_calibrate_pmtmr __initdata;
 int local_apic_timer_c2_ok;
 EXPORT_SYMBOL_GPL(local_apic_timer_c2_ok);
 
-static struct resource *ioapic_resources;
 static struct resource lapic_resource = {
 	.name = "Local APIC",
 	.flags = IORESOURCE_MEM | IORESOURCE_BUSY,
@@ -714,64 +713,6 @@ static int __init detect_init_APIC (void)
 	return 0;
 }
 
-#ifdef CONFIG_X86_IO_APIC
-static struct resource * __init ioapic_setup_resources(void)
-{
-#define IOAPIC_RESOURCE_NAME_SIZE 11
-	unsigned long n;
-	struct resource *res;
-	char *mem;
-	int i;
-
-	if (nr_ioapics <= 0)
-		return NULL;
-
-	n = IOAPIC_RESOURCE_NAME_SIZE + sizeof(struct resource);
-	n *= nr_ioapics;
-
-	mem = alloc_bootmem(n);
-	res = (void *)mem;
-
-	if (mem != NULL) {
-		memset(mem, 0, n);
-		mem += sizeof(struct resource) * nr_ioapics;
-
-		for (i = 0; i < nr_ioapics; i++) {
-			res[i].name = mem;
-			res[i].flags = IORESOURCE_MEM | IORESOURCE_BUSY;
-			sprintf(mem,  "IOAPIC %u", i);
-			mem += IOAPIC_RESOURCE_NAME_SIZE;
-		}
-	}
-
-	ioapic_resources = res;
-
-	return res;
-}
-
-static int __init ioapic_insert_resources(void)
-{
-	int i;
-	struct resource *r = ioapic_resources;
-
-	if (!r) {
-		printk("IO APIC resources could be not be allocated.\n");
-		return -1;
-	}
-
-	for (i = 0; i < nr_ioapics; i++) {
-		insert_resource(&iomem_resource, r);
-		r++;
-	}
-
-	return 0;
-}
-
-/* Insert the IO APIC resources after PCI initialization has occured to handle
- * IO APICS that are mapped in on a BAR in PCI space. */
-late_initcall(ioapic_insert_resources);
-#endif
-
 void __init init_apic_mappings(void)
 {
 	unsigned long apic_phys;
@@ -801,34 +742,6 @@ void __init init_apic_mappings(void)
 	 * default configuration (or the MP table is broken).
 	 */
 	boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID));
-
-	{
-		unsigned long ioapic_phys, idx = FIX_IO_APIC_BASE_0;
-		int i;
-		struct resource *ioapic_res;
-
-		ioapic_res = ioapic_setup_resources();
-		for (i = 0; i < nr_ioapics; i++) {
-			if (smp_found_config) {
-				ioapic_phys = mp_ioapics[i].mpc_apicaddr;
-			} else {
-				ioapic_phys = (unsigned long)
-					alloc_bootmem_pages(PAGE_SIZE);
-				ioapic_phys = __pa(ioapic_phys);
-			}
-			set_fixmap_nocache(idx, ioapic_phys);
-			apic_printk(APIC_VERBOSE,
-				    "mapped IOAPIC to %016lx (%016lx)\n",
-				    __fix_to_virt(idx), ioapic_phys);
-			idx++;
-
-			if (ioapic_res != NULL) {
-				ioapic_res->start = ioapic_phys;
-				ioapic_res->end = ioapic_phys + (4 * 1024) - 1;
-				ioapic_res++;
-			}
-		}
-	}
 }
 
 /*
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index d4f5286101a9..c6de7854ac63 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -35,6 +35,7 @@
 #ifdef CONFIG_ACPI
 #include <acpi/acpi_bus.h>
 #endif
+#include <linux/bootmem.h>
 
 #include <asm/idle.h>
 #include <asm/io.h>
@@ -2288,3 +2289,92 @@ void __init setup_ioapic_dest(void)
 }
 #endif
 
+#define IOAPIC_RESOURCE_NAME_SIZE 11
+
+static struct resource *ioapic_resources;
+
+static struct resource * __init ioapic_setup_resources(void)
+{
+	unsigned long n;
+	struct resource *res;
+	char *mem;
+	int i;
+
+	if (nr_ioapics <= 0)
+		return NULL;
+
+	n = IOAPIC_RESOURCE_NAME_SIZE + sizeof(struct resource);
+	n *= nr_ioapics;
+
+	mem = alloc_bootmem(n);
+	res = (void *)mem;
+
+	if (mem != NULL) {
+		memset(mem, 0, n);
+		mem += sizeof(struct resource) * nr_ioapics;
+
+		for (i = 0; i < nr_ioapics; i++) {
+			res[i].name = mem;
+			res[i].flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+			sprintf(mem,  "IOAPIC %u", i);
+			mem += IOAPIC_RESOURCE_NAME_SIZE;
+		}
+	}
+
+	ioapic_resources = res;
+
+	return res;
+}
+
+void __init ioapic_init_mappings(void)
+{
+	unsigned long ioapic_phys, idx = FIX_IO_APIC_BASE_0;
+	struct resource *ioapic_res;
+	int i;
+
+	ioapic_res = ioapic_setup_resources();
+	for (i = 0; i < nr_ioapics; i++) {
+		if (smp_found_config) {
+			ioapic_phys = mp_ioapics[i].mpc_apicaddr;
+		} else {
+			ioapic_phys = (unsigned long)
+				alloc_bootmem_pages(PAGE_SIZE);
+			ioapic_phys = __pa(ioapic_phys);
+		}
+		set_fixmap_nocache(idx, ioapic_phys);
+		apic_printk(APIC_VERBOSE,
+			    "mapped IOAPIC to %016lx (%016lx)\n",
+			    __fix_to_virt(idx), ioapic_phys);
+		idx++;
+
+		if (ioapic_res != NULL) {
+			ioapic_res->start = ioapic_phys;
+			ioapic_res->end = ioapic_phys + (4 * 1024) - 1;
+			ioapic_res++;
+		}
+	}
+}
+
+static int __init ioapic_insert_resources(void)
+{
+	int i;
+	struct resource *r = ioapic_resources;
+
+	if (!r) {
+		printk(KERN_ERR
+		       "IO APIC resources could be not be allocated.\n");
+		return -1;
+	}
+
+	for (i = 0; i < nr_ioapics; i++) {
+		insert_resource(&iomem_resource, r);
+		r++;
+	}
+
+	return 0;
+}
+
+/* Insert the IO APIC resources after PCI initialization has occured to handle
+ * IO APICS that are mapped in on a BAR in PCI space. */
+late_initcall(ioapic_insert_resources);
+
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index a84a4efc7fe6..bcb5f3aaa097 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -433,6 +433,7 @@ void __init setup_arch(char **cmdline_p)
 	if (smp_found_config)
 		get_smp_config();
 	init_apic_mappings();
+	ioapic_init_mappings();
 
 	/*
 	 * We trust e820 completely. No explicit ROM probing in memory.
diff --git a/include/asm-x86/io_apic_64.h b/include/asm-x86/io_apic_64.h
index 762a841b939e..3e3c2114d93a 100644
--- a/include/asm-x86/io_apic_64.h
+++ b/include/asm-x86/io_apic_64.h
@@ -127,6 +127,8 @@ extern int io_apic_get_redir_entries (int ioapic);
 extern int io_apic_set_pci_routing (int ioapic, int pin, int irq, int, int);
 #endif
 
+extern void ioapic_init_mappings(void);
+
 extern int sis_apic_bug; /* dummy */ 
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 87ebecf14ca4f669cb52be46c954f3d9201394b8 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:19 +0100
Subject: x86: move ack_bad_irq into irq code

Match i386, where we have this in the irq code. It belongs there.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/apic_64.c | 20 --------------------
 arch/x86/kernel/irq_64.c  | 20 ++++++++++++++++++++
 2 files changed, 20 insertions(+), 20 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index e0191cdd6f7a..032bf1e765df 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -169,26 +169,6 @@ int lapic_get_maxlvt(void)
 	return maxlvt;
 }
 
-/*
- * 'what should we do if we get a hw irq event on an illegal vector'.
- * each architecture has to answer this themselves.
- */
-void ack_bad_irq(unsigned int irq)
-{
-	printk("unexpected IRQ trap at vector %02x\n", irq);
-	/*
-	 * Currently unexpected vectors happen only on SMP and APIC.
-	 * We _must_ ack these because every local APIC has only N
-	 * irq slots per priority level, and a 'hanging, unacked' IRQ
-	 * holds up an irq slot - in excessive cases (when multiple
-	 * unexpected vectors occur) that might lock up the APIC
-	 * completely.
-	 * But don't ack when the APIC is disabled. -AK
-	 */
-	if (!disable_apic)
-		ack_APIC_irq();
-}
-
 void clear_local_APIC(void)
 {
 	int maxlvt;
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index 6b5c730d67b9..6c3a3b6e5cf4 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -20,6 +20,26 @@
 
 atomic_t irq_err_count;
 
+/*
+ * 'what should we do if we get a hw irq event on an illegal vector'.
+ * each architecture has to answer this themselves.
+ */
+void ack_bad_irq(unsigned int irq)
+{
+	printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq);
+	/*
+	 * Currently unexpected vectors happen only on SMP and APIC.
+	 * We _must_ ack these because every local APIC has only N
+	 * irq slots per priority level, and a 'hanging, unacked' IRQ
+	 * holds up an irq slot - in excessive cases (when multiple
+	 * unexpected vectors occur) that might lock up the APIC
+	 * completely.
+	 * But don't ack when the APIC is disabled. -AK
+	 */
+	if (!disable_apic)
+		ack_APIC_irq();
+}
+
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
 /*
  * Probabilistic stack overflow check:
-- 
cgit v1.2.3-59-g8ed1b


From 3a12d93dc0b46bc710317272bf91640d7a8b6f18 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:20 +0100
Subject: x86: make smp_local_timer_interrupt() static

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/apic_64.c | 2 +-
 include/asm-x86/apic.h    | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 032bf1e765df..5bf329ed9d78 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -923,7 +923,7 @@ void setup_APIC_extended_lvt(unsigned char lvt_off, unsigned char vector,
  * value into /proc/profile.
  */
 
-void smp_local_timer_interrupt(void)
+static void smp_local_timer_interrupt(void)
 {
 	int cpu = smp_processor_id();
 	struct clock_event_device *evt = &per_cpu(lapic_events, cpu);
diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h
index c064c1f84bab..d0a221fa1fc3 100644
--- a/include/asm-x86/apic.h
+++ b/include/asm-x86/apic.h
@@ -112,7 +112,6 @@ extern void sync_Arb_IDs(void);
 extern void init_bsp_APIC(void);
 extern void setup_local_APIC(void);
 extern void init_apic_mappings(void);
-extern void smp_local_timer_interrupt(void);
 extern void setup_boot_APIC_clock(void);
 extern void setup_secondary_APIC_clock(void);
 extern int APIC_init_uniprocessor(void);
-- 
cgit v1.2.3-59-g8ed1b


From 0e078e2f5060e06f9b3f32e55665ea835343440e Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:20 +0100
Subject: x86: prepare merging arch/x86/kernel/apic_32/64.c

Shuffle code around, so we get a readable diff.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/apic_32.c |   92 ++--
 arch/x86/kernel/apic_64.c | 1315 ++++++++++++++++++++++++---------------------
 2 files changed, 737 insertions(+), 670 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 3a069acb270c..420c15842e44 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -563,6 +563,9 @@ static void local_apic_timer_interrupt(void)
 		return;
 	}
 
+	/*
+	 * the NMI deadlock-detector uses this.
+	 */
 	per_cpu(irq_stat, cpu).apic_timer_irqs++;
 
 	evt->event_handler(evt);
@@ -617,7 +620,7 @@ int setup_profiling_timer(unsigned int multiplier)
 void clear_local_APIC(void)
 {
 	int maxlvt = lapic_get_maxlvt();
-	unsigned long v;
+	u32 v;
 
 	/*
 	 * Masking an LVT entry can trigger a local APIC error
@@ -1209,50 +1212,6 @@ int __init APIC_init_uniprocessor (void)
 	return 0;
 }
 
-/*
- * APIC command line parameters
- */
-static int __init parse_lapic(char *arg)
-{
-	enable_local_apic = 1;
-	return 0;
-}
-early_param("lapic", parse_lapic);
-
-static int __init parse_nolapic(char *arg)
-{
-	enable_local_apic = -1;
-	clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability);
-	return 0;
-}
-early_param("nolapic", parse_nolapic);
-
-static int __init parse_disable_lapic_timer(char *arg)
-{
-	local_apic_timer_disabled = 1;
-	return 0;
-}
-early_param("nolapic_timer", parse_disable_lapic_timer);
-
-static int __init parse_lapic_timer_c2_ok(char *arg)
-{
-	local_apic_timer_c2_ok = 1;
-	return 0;
-}
-early_param("lapic_timer_c2_ok", parse_lapic_timer_c2_ok);
-
-static int __init apic_set_verbosity(char *str)
-{
-	if (strcmp("debug", str) == 0)
-		apic_verbosity = APIC_DEBUG;
-	else if (strcmp("verbose", str) == 0)
-		apic_verbosity = APIC_VERBOSE;
-	return 1;
-}
-
-__setup("apic=", apic_set_verbosity);
-
-
 /*
  * Local APIC interrupts
  */
@@ -1565,3 +1524,46 @@ device_initcall(init_lapic_sysfs);
 static void apic_pm_activate(void) { }
 
 #endif	/* CONFIG_PM */
+
+/*
+ * APIC command line parameters
+ */
+static int __init parse_lapic(char *arg)
+{
+	enable_local_apic = 1;
+	return 0;
+}
+early_param("lapic", parse_lapic);
+
+static int __init parse_nolapic(char *arg)
+{
+	enable_local_apic = -1;
+	clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability);
+	return 0;
+}
+early_param("nolapic", parse_nolapic);
+
+static int __init parse_disable_lapic_timer(char *arg)
+{
+	local_apic_timer_disabled = 1;
+	return 0;
+}
+early_param("nolapic_timer", parse_disable_lapic_timer);
+
+static int __init parse_lapic_timer_c2_ok(char *arg)
+{
+	local_apic_timer_c2_ok = 1;
+	return 0;
+}
+early_param("lapic_timer_c2_ok", parse_lapic_timer_c2_ok);
+
+static int __init apic_set_verbosity(char *str)
+{
+	if (strcmp("debug", str) == 0)
+		apic_verbosity = APIC_DEBUG;
+	else if (strcmp("verbose", str) == 0)
+		apic_verbosity = APIC_VERBOSE;
+	return 1;
+}
+__setup("apic=", apic_set_verbosity);
+
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 5bf329ed9d78..915808bd8a2a 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -44,6 +44,7 @@
 int apic_verbosity;
 int disable_apic_timer __cpuinitdata;
 static int apic_calibrate_pmtmr __initdata;
+int disable_apic;
 
 /* Local APIC timer works in C2? */
 int local_apic_timer_c2_ok;
@@ -60,10 +61,8 @@ static int lapic_next_event(unsigned long delta,
 			    struct clock_event_device *evt);
 static void lapic_timer_setup(enum clock_event_mode mode,
 			      struct clock_event_device *evt);
-
 static void lapic_timer_broadcast(cpumask_t mask);
-
-static void __setup_APIC_LVTT(unsigned int clocks, int oneshot, int irqen);
+static void apic_pm_activate(void);
 
 static struct clock_event_device lapic_clockevent = {
 	.name		= "lapic",
@@ -78,57 +77,34 @@ static struct clock_event_device lapic_clockevent = {
 };
 static DEFINE_PER_CPU(struct clock_event_device, lapic_events);
 
-static int lapic_next_event(unsigned long delta,
-			    struct clock_event_device *evt)
+/*
+ * Get the LAPIC version
+ */
+static inline int lapic_get_version(void)
 {
-	apic_write(APIC_TMICT, delta);
-	return 0;
+	return GET_APIC_VERSION(apic_read(APIC_LVR));
 }
 
-static void lapic_timer_setup(enum clock_event_mode mode,
-			      struct clock_event_device *evt)
+/*
+ * Check, if the APIC is integrated or a seperate chip
+ */
+static inline int lapic_is_integrated(void)
 {
-	unsigned long flags;
-	unsigned int v;
-
-	/* Lapic used as dummy for broadcast ? */
-	if (evt->features & CLOCK_EVT_FEAT_DUMMY)
-		return;
-
-	local_irq_save(flags);
-
-	switch (mode) {
-	case CLOCK_EVT_MODE_PERIODIC:
-	case CLOCK_EVT_MODE_ONESHOT:
-		__setup_APIC_LVTT(calibration_result,
-				  mode != CLOCK_EVT_MODE_PERIODIC, 1);
-		break;
-	case CLOCK_EVT_MODE_UNUSED:
-	case CLOCK_EVT_MODE_SHUTDOWN:
-		v = apic_read(APIC_LVTT);
-		v |= (APIC_LVT_MASKED | LOCAL_TIMER_VECTOR);
-		apic_write(APIC_LVTT, v);
-		break;
-	case CLOCK_EVT_MODE_RESUME:
-		/* Nothing to do here */
-		break;
-	}
-
-	local_irq_restore(flags);
+	return 1;
 }
 
 /*
- * Local APIC timer broadcast function
+ * Check, whether this is a modern or a first generation APIC
  */
-static void lapic_timer_broadcast(cpumask_t mask)
+static int modern_apic(void)
 {
-#ifdef CONFIG_SMP
-	send_IPI_mask(mask, LOCAL_TIMER_VECTOR);
-#endif
+	/* AMD systems use old APIC versions, so check the CPU */
+	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
+	    boot_cpu_data.x86 >= 0xf)
+		return 1;
+	return lapic_get_version() >= 0x14;
 }
 
-static void apic_pm_activate(void);
-
 void apic_wait_icr_idle(void)
 {
 	while (apic_read(APIC_ICR) & APIC_ICR_BUSY)
@@ -151,7 +127,10 @@ u32 safe_apic_wait_icr_idle(void)
 	return send_status;
 }
 
-void enable_NMI_through_LVT0 (void * dummy)
+/**
+ * enable_NMI_through_LVT0 - enable NMI through local vector table 0
+ */
+void enable_NMI_through_LVT0(void *dummy)
 {
 	unsigned int v;
 
@@ -160,6 +139,9 @@ void enable_NMI_through_LVT0 (void * dummy)
 	apic_write(APIC_LVT0, v);
 }
 
+/**
+ * lapic_get_maxlvt - get the maximum number of local vector table entries
+ */
 int lapic_get_maxlvt(void)
 {
 	unsigned int v, maxlvt;
@@ -169,184 +151,476 @@ int lapic_get_maxlvt(void)
 	return maxlvt;
 }
 
-void clear_local_APIC(void)
+/*
+ * This function sets up the local APIC timer, with a timeout of
+ * 'clocks' APIC bus clock. During calibration we actually call
+ * this function twice on the boot CPU, once with a bogus timeout
+ * value, second time for real. The other (noncalibrating) CPUs
+ * call this function only once, with the real, calibrated value.
+ *
+ * We do reads before writes even if unnecessary, to get around the
+ * P5 APIC double write bug.
+ */
+
+static void __setup_APIC_LVTT(unsigned int clocks, int oneshot, int irqen)
 {
-	int maxlvt;
-	unsigned int v;
+	unsigned int lvtt_value, tmp_value;
 
-	maxlvt = lapic_get_maxlvt();
+	lvtt_value = LOCAL_TIMER_VECTOR;
+	if (!oneshot)
+		lvtt_value |= APIC_LVT_TIMER_PERIODIC;
+	if (!irqen)
+		lvtt_value |= APIC_LVT_MASKED;
 
-	/*
-	 * Masking an LVT entry can trigger a local APIC error
-	 * if the vector is zero. Mask LVTERR first to prevent this.
-	 */
-	if (maxlvt >= 3) {
-		v = ERROR_APIC_VECTOR; /* any non-zero vector will do */
-		apic_write(APIC_LVTERR, v | APIC_LVT_MASKED);
-	}
-	/*
-	 * Careful: we have to set masks only first to deassert
-	 * any level-triggered sources.
-	 */
-	v = apic_read(APIC_LVTT);
-	apic_write(APIC_LVTT, v | APIC_LVT_MASKED);
-	v = apic_read(APIC_LVT0);
-	apic_write(APIC_LVT0, v | APIC_LVT_MASKED);
-	v = apic_read(APIC_LVT1);
-	apic_write(APIC_LVT1, v | APIC_LVT_MASKED);
-	if (maxlvt >= 4) {
-		v = apic_read(APIC_LVTPC);
-		apic_write(APIC_LVTPC, v | APIC_LVT_MASKED);
-	}
+	apic_write(APIC_LVTT, lvtt_value);
 
 	/*
-	 * Clean APIC state for other OSs:
+	 * Divide PICLK by 16
 	 */
-	apic_write(APIC_LVTT, APIC_LVT_MASKED);
-	apic_write(APIC_LVT0, APIC_LVT_MASKED);
-	apic_write(APIC_LVT1, APIC_LVT_MASKED);
-	if (maxlvt >= 3)
-		apic_write(APIC_LVTERR, APIC_LVT_MASKED);
-	if (maxlvt >= 4)
-		apic_write(APIC_LVTPC, APIC_LVT_MASKED);
-	apic_write(APIC_ESR, 0);
-	apic_read(APIC_ESR);
+	tmp_value = apic_read(APIC_TDCR);
+	apic_write(APIC_TDCR, (tmp_value
+				& ~(APIC_TDR_DIV_1 | APIC_TDR_DIV_TMBASE))
+				| APIC_TDR_DIV_16);
+
+	if (!oneshot)
+		apic_write(APIC_TMICT, clocks);
 }
 
-void disconnect_bsp_APIC(int virt_wire_setup)
+/*
+ * Setup extended LVT (K8 specific)
+ */
+void setup_APIC_extended_lvt(unsigned char lvt_off, unsigned char vector,
+			     unsigned char msg_type, unsigned char mask)
 {
-	/* Go back to Virtual Wire compatibility mode */
-	unsigned long value;
-
-	/* For the spurious interrupt use vector F, and enable it */
-	value = apic_read(APIC_SPIV);
-	value &= ~APIC_VECTOR_MASK;
-	value |= APIC_SPIV_APIC_ENABLED;
-	value |= 0xf;
-	apic_write(APIC_SPIV, value);
-
-	if (!virt_wire_setup) {
-		/*
-		 * For LVT0 make it edge triggered, active high,
-		 * external and enabled
-		 */
-		value = apic_read(APIC_LVT0);
-		value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING |
-			APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR |
-			APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED );
-		value |= APIC_LVT_REMOTE_IRR | APIC_SEND_PENDING;
-		value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_EXTINT);
-		apic_write(APIC_LVT0, value);
-	} else {
-		/* Disable LVT0 */
-		apic_write(APIC_LVT0, APIC_LVT_MASKED);
-	}
+	unsigned long reg = (lvt_off << 4) + K8_APIC_EXT_LVT_BASE;
+	unsigned int  v   = (mask << 16) | (msg_type << 8) | vector;
 
-	/* For LVT1 make it edge triggered, active high, nmi and enabled */
-	value = apic_read(APIC_LVT1);
-	value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING |
-			APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR |
-			APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED);
-	value |= APIC_LVT_REMOTE_IRR | APIC_SEND_PENDING;
-	value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_NMI);
-	apic_write(APIC_LVT1, value);
+	apic_write(reg, v);
 }
 
-void disable_local_APIC(void)
+/*
+ * Program the next event, relative to now
+ */
+static int lapic_next_event(unsigned long delta,
+			    struct clock_event_device *evt)
 {
-	unsigned int value;
-
-	clear_local_APIC();
-
-	/*
-	 * Disable APIC (implies clearing of registers
-	 * for 82489DX!).
-	 */
-	value = apic_read(APIC_SPIV);
-	value &= ~APIC_SPIV_APIC_ENABLED;
-	apic_write(APIC_SPIV, value);
+	apic_write(APIC_TMICT, delta);
+	return 0;
 }
 
-void lapic_shutdown(void)
+/*
+ * Setup the lapic timer in periodic or oneshot mode
+ */
+static void lapic_timer_setup(enum clock_event_mode mode,
+			      struct clock_event_device *evt)
 {
 	unsigned long flags;
+	unsigned int v;
 
-	if (!cpu_has_apic)
+	/* Lapic used as dummy for broadcast ? */
+	if (evt->features & CLOCK_EVT_FEAT_DUMMY)
 		return;
 
 	local_irq_save(flags);
 
-	disable_local_APIC();
+	switch (mode) {
+	case CLOCK_EVT_MODE_PERIODIC:
+	case CLOCK_EVT_MODE_ONESHOT:
+		__setup_APIC_LVTT(calibration_result,
+				  mode != CLOCK_EVT_MODE_PERIODIC, 1);
+		break;
+	case CLOCK_EVT_MODE_UNUSED:
+	case CLOCK_EVT_MODE_SHUTDOWN:
+		v = apic_read(APIC_LVTT);
+		v |= (APIC_LVT_MASKED | LOCAL_TIMER_VECTOR);
+		apic_write(APIC_LVTT, v);
+		break;
+	case CLOCK_EVT_MODE_RESUME:
+		/* Nothing to do here */
+		break;
+	}
 
 	local_irq_restore(flags);
 }
 
 /*
- * This is to verify that we're looking at a real local APIC.
- * Check these against your board if the CPUs aren't getting
- * started for no apparent reason.
+ * Local APIC timer broadcast function
  */
-int __init verify_local_APIC(void)
+static void lapic_timer_broadcast(cpumask_t mask)
 {
-	unsigned int reg0, reg1;
-
-	/*
-	 * The version register is read-only in a real APIC.
-	 */
-	reg0 = apic_read(APIC_LVR);
-	apic_printk(APIC_DEBUG, "Getting VERSION: %x\n", reg0);
-	apic_write(APIC_LVR, reg0 ^ APIC_LVR_MASK);
-	reg1 = apic_read(APIC_LVR);
-	apic_printk(APIC_DEBUG, "Getting VERSION: %x\n", reg1);
+#ifdef CONFIG_SMP
+	send_IPI_mask(mask, LOCAL_TIMER_VECTOR);
+#endif
+}
 
-	/*
-	 * The two version reads above should print the same
-	 * numbers.  If the second one is different, then we
-	 * poke at a non-APIC.
-	 */
-	if (reg1 != reg0)
-		return 0;
+/*
+ * Setup the local APIC timer for this CPU. Copy the initilized values
+ * of the boot CPU and register the clock event in the framework.
+ */
+static void setup_APIC_timer(void)
+{
+	struct clock_event_device *levt = &__get_cpu_var(lapic_events);
 
-	/*
-	 * Check if the version looks reasonably.
-	 */
-	reg1 = GET_APIC_VERSION(reg0);
-	if (reg1 == 0x00 || reg1 == 0xff)
-		return 0;
-	reg1 = lapic_get_maxlvt();
-	if (reg1 < 0x02 || reg1 == 0xff)
-		return 0;
+	memcpy(levt, &lapic_clockevent, sizeof(*levt));
+	levt->cpumask = cpumask_of_cpu(smp_processor_id());
 
-	/*
-	 * The ID register is read/write in a real APIC.
-	 */
-	reg0 = apic_read(APIC_ID);
-	apic_printk(APIC_DEBUG, "Getting ID: %x\n", reg0);
-	apic_write(APIC_ID, reg0 ^ APIC_ID_MASK);
-	reg1 = apic_read(APIC_ID);
-	apic_printk(APIC_DEBUG, "Getting ID: %x\n", reg1);
-	apic_write(APIC_ID, reg0);
-	if (reg1 != (reg0 ^ APIC_ID_MASK))
-		return 0;
+	clockevents_register_device(levt);
+}
 
-	/*
+/*
+ * In this function we calibrate APIC bus clocks to the external
+ * timer. Unfortunately we cannot use jiffies and the timer irq
+ * to calibrate, since some later bootup code depends on getting
+ * the first irq? Ugh.
+ *
+ * We want to do the calibration only once since we
+ * want to have local timer irqs syncron. CPUs connected
+ * by the same APIC bus have the very same bus frequency.
+ * And we want to have irqs off anyways, no accidental
+ * APIC irq that way.
+ */
+
+#define TICK_COUNT 100000000
+
+static void __init calibrate_APIC_clock(void)
+{
+	unsigned apic, apic_start;
+	unsigned long tsc, tsc_start;
+	int result;
+
+	local_irq_disable();
+
+	/*
+	 * Put whatever arbitrary (but long enough) timeout
+	 * value into the APIC clock, we just want to get the
+	 * counter running for calibration.
+	 *
+	 * No interrupt enable !
+	 */
+	__setup_APIC_LVTT(250000000, 0, 0);
+
+	apic_start = apic_read(APIC_TMCCT);
+#ifdef CONFIG_X86_PM_TIMER
+	if (apic_calibrate_pmtmr && pmtmr_ioport) {
+		pmtimer_wait(5000);  /* 5ms wait */
+		apic = apic_read(APIC_TMCCT);
+		result = (apic_start - apic) * 1000L / 5;
+	} else
+#endif
+	{
+		rdtscll(tsc_start);
+
+		do {
+			apic = apic_read(APIC_TMCCT);
+			rdtscll(tsc);
+		} while ((tsc - tsc_start) < TICK_COUNT &&
+				(apic_start - apic) < TICK_COUNT);
+
+		result = (apic_start - apic) * 1000L * tsc_khz /
+					(tsc - tsc_start);
+	}
+
+	local_irq_enable();
+
+	printk(KERN_DEBUG "APIC timer calibration result %d\n", result);
+
+	printk(KERN_INFO "Detected %d.%03d MHz APIC timer.\n",
+		result / 1000 / 1000, result / 1000 % 1000);
+
+	/* Calculate the scaled math multiplication factor */
+	lapic_clockevent.mult = div_sc(result, NSEC_PER_SEC, 32);
+	lapic_clockevent.max_delta_ns =
+		clockevent_delta2ns(0x7FFFFF, &lapic_clockevent);
+	lapic_clockevent.min_delta_ns =
+		clockevent_delta2ns(0xF, &lapic_clockevent);
+
+	calibration_result = result / HZ;
+}
+
+void __init setup_boot_APIC_clock(void)
+{
+	/*
+	 * The local apic timer can be disabled via the kernel commandline.
+	 * Register the lapic timer as a dummy clock event source on SMP
+	 * systems, so the broadcast mechanism is used. On UP systems simply
+	 * ignore it.
+	 */
+	if (disable_apic_timer) {
+		printk(KERN_INFO "Disabling APIC timer\n");
+		/* No broadcast on UP ! */
+		if (num_possible_cpus() > 1)
+			setup_APIC_timer();
+		return;
+	}
+
+	printk(KERN_INFO "Using local APIC timer interrupts.\n");
+	calibrate_APIC_clock();
+
+	/*
+	 * If nmi_watchdog is set to IO_APIC, we need the
+	 * PIT/HPET going.  Otherwise register lapic as a dummy
+	 * device.
+	 */
+	if (nmi_watchdog != NMI_IO_APIC)
+		lapic_clockevent.features &= ~CLOCK_EVT_FEAT_DUMMY;
+	else
+		printk(KERN_WARNING "APIC timer registered as dummy,"
+		       " due to nmi_watchdog=1!\n");
+
+	setup_APIC_timer();
+}
+
+/*
+ * AMD C1E enabled CPUs have a real nasty problem: Some BIOSes set the
+ * C1E flag only in the secondary CPU, so when we detect the wreckage
+ * we already have enabled the boot CPU local apic timer. Check, if
+ * disable_apic_timer is set and the DUMMY flag is cleared. If yes,
+ * set the DUMMY flag again and force the broadcast mode in the
+ * clockevents layer.
+ */
+void __cpuinit check_boot_apic_timer_broadcast(void)
+{
+	if (!disable_apic_timer ||
+	    (lapic_clockevent.features & CLOCK_EVT_FEAT_DUMMY))
+		return;
+
+	printk(KERN_INFO "AMD C1E detected late. Force timer broadcast.\n");
+	lapic_clockevent.features |= CLOCK_EVT_FEAT_DUMMY;
+
+	local_irq_enable();
+	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_FORCE, &boot_cpu_id);
+	local_irq_disable();
+}
+
+void __cpuinit setup_secondary_APIC_clock(void)
+{
+	check_boot_apic_timer_broadcast();
+	setup_APIC_timer();
+}
+
+/*
+ * The guts of the apic timer interrupt
+ */
+static void local_apic_timer_interrupt(void)
+{
+	int cpu = smp_processor_id();
+	struct clock_event_device *evt = &per_cpu(lapic_events, cpu);
+
+	/*
+	 * Normally we should not be here till LAPIC has been initialized but
+	 * in some cases like kdump, its possible that there is a pending LAPIC
+	 * timer interrupt from previous kernel's context and is delivered in
+	 * new kernel the moment interrupts are enabled.
+	 *
+	 * Interrupts are enabled early and LAPIC is setup much later, hence
+	 * its possible that when we get here evt->event_handler is NULL.
+	 * Check for event_handler being NULL and discard the interrupt as
+	 * spurious.
+	 */
+	if (!evt->event_handler) {
+		printk(KERN_WARNING
+		       "Spurious LAPIC timer interrupt on cpu %d\n", cpu);
+		/* Switch it off */
+		lapic_timer_setup(CLOCK_EVT_MODE_SHUTDOWN, evt);
+		return;
+	}
+
+	/*
+	 * the NMI deadlock-detector uses this.
+	 */
+	add_pda(apic_timer_irqs, 1);
+
+	evt->event_handler(evt);
+}
+
+/*
+ * Local APIC timer interrupt. This is the most natural way for doing
+ * local interrupts, but local timer interrupts can be emulated by
+ * broadcast interrupts too. [in case the hw doesn't support APIC timers]
+ *
+ * [ if a single-CPU system runs an SMP kernel then we call the local
+ *   interrupt as well. Thus we cannot inline the local irq ... ]
+ */
+void smp_apic_timer_interrupt(struct pt_regs *regs)
+{
+	struct pt_regs *old_regs = set_irq_regs(regs);
+
+	/*
+	 * NOTE! We'd better ACK the irq immediately,
+	 * because timer handling can be slow.
+	 */
+	ack_APIC_irq();
+	/*
+	 * update_process_times() expects us to have done irq_enter().
+	 * Besides, if we don't timer interrupts ignore the global
+	 * interrupt lock, which is the WrongThing (tm) to do.
+	 */
+	exit_idle();
+	irq_enter();
+	local_apic_timer_interrupt();
+	irq_exit();
+	set_irq_regs(old_regs);
+}
+
+int setup_profiling_timer(unsigned int multiplier)
+{
+	return -EINVAL;
+}
+
+
+/*
+ * Local APIC start and shutdown
+ */
+
+/**
+ * clear_local_APIC - shutdown the local APIC
+ *
+ * This is called, when a CPU is disabled and before rebooting, so the state of
+ * the local APIC has no dangling leftovers. Also used to cleanout any BIOS
+ * leftovers during boot.
+ */
+void clear_local_APIC(void)
+{
+	int maxlvt = lapic_get_maxlvt();
+	u32 v;
+
+	/*
+	 * Masking an LVT entry can trigger a local APIC error
+	 * if the vector is zero. Mask LVTERR first to prevent this.
+	 */
+	if (maxlvt >= 3) {
+		v = ERROR_APIC_VECTOR; /* any non-zero vector will do */
+		apic_write(APIC_LVTERR, v | APIC_LVT_MASKED);
+	}
+	/*
+	 * Careful: we have to set masks only first to deassert
+	 * any level-triggered sources.
+	 */
+	v = apic_read(APIC_LVTT);
+	apic_write(APIC_LVTT, v | APIC_LVT_MASKED);
+	v = apic_read(APIC_LVT0);
+	apic_write(APIC_LVT0, v | APIC_LVT_MASKED);
+	v = apic_read(APIC_LVT1);
+	apic_write(APIC_LVT1, v | APIC_LVT_MASKED);
+	if (maxlvt >= 4) {
+		v = apic_read(APIC_LVTPC);
+		apic_write(APIC_LVTPC, v | APIC_LVT_MASKED);
+	}
+
+	/*
+	 * Clean APIC state for other OSs:
+	 */
+	apic_write(APIC_LVTT, APIC_LVT_MASKED);
+	apic_write(APIC_LVT0, APIC_LVT_MASKED);
+	apic_write(APIC_LVT1, APIC_LVT_MASKED);
+	if (maxlvt >= 3)
+		apic_write(APIC_LVTERR, APIC_LVT_MASKED);
+	if (maxlvt >= 4)
+		apic_write(APIC_LVTPC, APIC_LVT_MASKED);
+	apic_write(APIC_ESR, 0);
+	apic_read(APIC_ESR);
+}
+
+/**
+ * disable_local_APIC - clear and disable the local APIC
+ */
+void disable_local_APIC(void)
+{
+	unsigned int value;
+
+	clear_local_APIC();
+
+	/*
+	 * Disable APIC (implies clearing of registers
+	 * for 82489DX!).
+	 */
+	value = apic_read(APIC_SPIV);
+	value &= ~APIC_SPIV_APIC_ENABLED;
+	apic_write(APIC_SPIV, value);
+}
+
+void lapic_shutdown(void)
+{
+	unsigned long flags;
+
+	if (!cpu_has_apic)
+		return;
+
+	local_irq_save(flags);
+
+	disable_local_APIC();
+
+	local_irq_restore(flags);
+}
+
+/*
+ * This is to verify that we're looking at a real local APIC.
+ * Check these against your board if the CPUs aren't getting
+ * started for no apparent reason.
+ */
+int __init verify_local_APIC(void)
+{
+	unsigned int reg0, reg1;
+
+	/*
+	 * The version register is read-only in a real APIC.
+	 */
+	reg0 = apic_read(APIC_LVR);
+	apic_printk(APIC_DEBUG, "Getting VERSION: %x\n", reg0);
+	apic_write(APIC_LVR, reg0 ^ APIC_LVR_MASK);
+	reg1 = apic_read(APIC_LVR);
+	apic_printk(APIC_DEBUG, "Getting VERSION: %x\n", reg1);
+
+	/*
+	 * The two version reads above should print the same
+	 * numbers.  If the second one is different, then we
+	 * poke at a non-APIC.
+	 */
+	if (reg1 != reg0)
+		return 0;
+
+	/*
+	 * Check if the version looks reasonably.
+	 */
+	reg1 = GET_APIC_VERSION(reg0);
+	if (reg1 == 0x00 || reg1 == 0xff)
+		return 0;
+	reg1 = lapic_get_maxlvt();
+	if (reg1 < 0x02 || reg1 == 0xff)
+		return 0;
+
+	/*
+	 * The ID register is read/write in a real APIC.
+	 */
+	reg0 = apic_read(APIC_ID);
+	apic_printk(APIC_DEBUG, "Getting ID: %x\n", reg0);
+	apic_write(APIC_ID, reg0 ^ APIC_ID_MASK);
+	reg1 = apic_read(APIC_ID);
+	apic_printk(APIC_DEBUG, "Getting ID: %x\n", reg1);
+	apic_write(APIC_ID, reg0);
+	if (reg1 != (reg0 ^ APIC_ID_MASK))
+		return 0;
+
+	/*
 	 * The next two are just to see if we have sane values.
 	 * They're only really relevant if we're in Virtual Wire
 	 * compatibility mode, but most boxes are anymore.
 	 */
 	reg0 = apic_read(APIC_LVT0);
-	apic_printk(APIC_DEBUG,"Getting LVT0: %x\n", reg0);
+	apic_printk(APIC_DEBUG, "Getting LVT0: %x\n", reg0);
 	reg1 = apic_read(APIC_LVT1);
 	apic_printk(APIC_DEBUG, "Getting LVT1: %x\n", reg1);
 
 	return 1;
 }
 
+/**
+ * sync_Arb_IDs - synchronize APIC bus arbitration IDs
+ */
 void __init sync_Arb_IDs(void)
 {
 	/* Unsupported on P4 - see Intel Dev. Manual Vol. 3, Ch. 8.6.1 */
-	unsigned int ver = GET_APIC_VERSION(apic_read(APIC_LVR));
-	if (ver >= 0x14)	/* P4 or higher */
+	if (modern_apic())
 		return;
 
 	/*
@@ -398,7 +672,10 @@ void __init init_bsp_APIC(void)
 	apic_write(APIC_LVT1, value);
 }
 
-void __cpuinit setup_local_APIC (void)
+/**
+ * setup_local_APIC - setup the local APIC
+ */
+void __cpuinit setup_local_APIC(void)
 {
 	unsigned int value, maxlvt;
 	int i, j;
@@ -517,162 +794,8 @@ void __cpuinit setup_local_APIC (void)
 
 	nmi_watchdog_default();
 	setup_apic_nmi_watchdog(NULL);
-	apic_pm_activate();
-}
-
-#ifdef CONFIG_PM
-
-static struct {
-	/* 'active' is true if the local APIC was enabled by us and
-	   not the BIOS; this signifies that we are also responsible
-	   for disabling it before entering apm/acpi suspend */
-	int active;
-	/* r/w apic fields */
-	unsigned int apic_id;
-	unsigned int apic_taskpri;
-	unsigned int apic_ldr;
-	unsigned int apic_dfr;
-	unsigned int apic_spiv;
-	unsigned int apic_lvtt;
-	unsigned int apic_lvtpc;
-	unsigned int apic_lvt0;
-	unsigned int apic_lvt1;
-	unsigned int apic_lvterr;
-	unsigned int apic_tmict;
-	unsigned int apic_tdcr;
-	unsigned int apic_thmr;
-} apic_pm_state;
-
-static int lapic_suspend(struct sys_device *dev, pm_message_t state)
-{
-	unsigned long flags;
-	int maxlvt;
-
-	if (!apic_pm_state.active)
-		return 0;
-
-	maxlvt = lapic_get_maxlvt();
-
-	apic_pm_state.apic_id = apic_read(APIC_ID);
-	apic_pm_state.apic_taskpri = apic_read(APIC_TASKPRI);
-	apic_pm_state.apic_ldr = apic_read(APIC_LDR);
-	apic_pm_state.apic_dfr = apic_read(APIC_DFR);
-	apic_pm_state.apic_spiv = apic_read(APIC_SPIV);
-	apic_pm_state.apic_lvtt = apic_read(APIC_LVTT);
-	if (maxlvt >= 4)
-		apic_pm_state.apic_lvtpc = apic_read(APIC_LVTPC);
-	apic_pm_state.apic_lvt0 = apic_read(APIC_LVT0);
-	apic_pm_state.apic_lvt1 = apic_read(APIC_LVT1);
-	apic_pm_state.apic_lvterr = apic_read(APIC_LVTERR);
-	apic_pm_state.apic_tmict = apic_read(APIC_TMICT);
-	apic_pm_state.apic_tdcr = apic_read(APIC_TDCR);
-#ifdef CONFIG_X86_MCE_INTEL
-	if (maxlvt >= 5)
-		apic_pm_state.apic_thmr = apic_read(APIC_LVTTHMR);
-#endif
-	local_irq_save(flags);
-	disable_local_APIC();
-	local_irq_restore(flags);
-	return 0;
-}
-
-static int lapic_resume(struct sys_device *dev)
-{
-	unsigned int l, h;
-	unsigned long flags;
-	int maxlvt;
-
-	if (!apic_pm_state.active)
-		return 0;
-
-	maxlvt = lapic_get_maxlvt();
-
-	local_irq_save(flags);
-	rdmsr(MSR_IA32_APICBASE, l, h);
-	l &= ~MSR_IA32_APICBASE_BASE;
-	l |= MSR_IA32_APICBASE_ENABLE | mp_lapic_addr;
-	wrmsr(MSR_IA32_APICBASE, l, h);
-	apic_write(APIC_LVTERR, ERROR_APIC_VECTOR | APIC_LVT_MASKED);
-	apic_write(APIC_ID, apic_pm_state.apic_id);
-	apic_write(APIC_DFR, apic_pm_state.apic_dfr);
-	apic_write(APIC_LDR, apic_pm_state.apic_ldr);
-	apic_write(APIC_TASKPRI, apic_pm_state.apic_taskpri);
-	apic_write(APIC_SPIV, apic_pm_state.apic_spiv);
-	apic_write(APIC_LVT0, apic_pm_state.apic_lvt0);
-	apic_write(APIC_LVT1, apic_pm_state.apic_lvt1);
-#ifdef CONFIG_X86_MCE_INTEL
-	if (maxlvt >= 5)
-		apic_write(APIC_LVTTHMR, apic_pm_state.apic_thmr);
-#endif
-	if (maxlvt >= 4)
-		apic_write(APIC_LVTPC, apic_pm_state.apic_lvtpc);
-	apic_write(APIC_LVTT, apic_pm_state.apic_lvtt);
-	apic_write(APIC_TDCR, apic_pm_state.apic_tdcr);
-	apic_write(APIC_TMICT, apic_pm_state.apic_tmict);
-	apic_write(APIC_ESR, 0);
-	apic_read(APIC_ESR);
-	apic_write(APIC_LVTERR, apic_pm_state.apic_lvterr);
-	apic_write(APIC_ESR, 0);
-	apic_read(APIC_ESR);
-	local_irq_restore(flags);
-	return 0;
-}
-
-static struct sysdev_class lapic_sysclass = {
-	.name		= "lapic",
-	.resume		= lapic_resume,
-	.suspend	= lapic_suspend,
-};
-
-static struct sys_device device_lapic = {
-	.id		= 0,
-	.cls		= &lapic_sysclass,
-};
-
-static void __cpuinit apic_pm_activate(void)
-{
-	apic_pm_state.active = 1;
-}
-
-static int __init init_lapic_sysfs(void)
-{
-	int error;
-	if (!cpu_has_apic)
-		return 0;
-	/* XXX: remove suspend/resume procs if !apic_pm_state.active? */
-	error = sysdev_class_register(&lapic_sysclass);
-	if (!error)
-		error = sysdev_register(&device_lapic);
-	return error;
-}
-device_initcall(init_lapic_sysfs);
-
-#else	/* CONFIG_PM */
-
-static void apic_pm_activate(void) { }
-
-#endif	/* CONFIG_PM */
-
-static int __init apic_set_verbosity(char *str)
-{
-	if (str == NULL)  {
-		skip_ioapic_setup = 0;
-		ioapic_force = 1;
-		return 0;
-	}
-	if (strcmp("debug", str) == 0)
-		apic_verbosity = APIC_DEBUG;
-	else if (strcmp("verbose", str) == 0)
-		apic_verbosity = APIC_VERBOSE;
-	else {
-		printk(KERN_WARNING "APIC Verbosity level %s not recognised"
-				" use apic=verbose or apic=debug\n", str);
-		return -EINVAL;
-	}
-
-	return 0;
+	apic_pm_activate();
 }
-early_param("apic", apic_set_verbosity);
 
 /*
  * Detect and enable local APICs on non-SMP boards.
@@ -680,8 +803,7 @@ early_param("apic", apic_set_verbosity);
  * On AMD64 we trust the BIOS - if it says no APIC it is likely
  * not correctly set up (usually the APIC timer won't work etc.)
  */
-
-static int __init detect_init_APIC (void)
+static int __init detect_init_APIC(void)
 {
 	if (!cpu_has_apic) {
 		printk(KERN_INFO "No local APIC present\n");
@@ -693,6 +815,9 @@ static int __init detect_init_APIC (void)
 	return 0;
 }
 
+/**
+ * init_apic_mappings - initialize APIC mappings
+ */
 void __init init_apic_mappings(void)
 {
 	unsigned long apic_phys;
@@ -725,264 +850,267 @@ void __init init_apic_mappings(void)
 }
 
 /*
- * This function sets up the local APIC timer, with a timeout of
- * 'clocks' APIC bus clock. During calibration we actually call
- * this function twice on the boot CPU, once with a bogus timeout
- * value, second time for real. The other (noncalibrating) CPUs
- * call this function only once, with the real, calibrated value.
- *
- * We do reads before writes even if unnecessary, to get around the
- * P5 APIC double write bug.
+ * This initializes the IO-APIC and APIC hardware if this is
+ * a UP kernel.
  */
-
-static void __setup_APIC_LVTT(unsigned int clocks, int oneshot, int irqen)
+int __init APIC_init_uniprocessor(void)
 {
-	unsigned int lvtt_value, tmp_value;
-
-	lvtt_value = LOCAL_TIMER_VECTOR;
-	if (!oneshot)
-		lvtt_value |= APIC_LVT_TIMER_PERIODIC;
-	if (!irqen)
-		lvtt_value |= APIC_LVT_MASKED;
-
-	apic_write(APIC_LVTT, lvtt_value);
-
-	/*
-	 * Divide PICLK by 16
-	 */
-	tmp_value = apic_read(APIC_TDCR);
-	apic_write(APIC_TDCR, (tmp_value
-				& ~(APIC_TDR_DIV_1 | APIC_TDR_DIV_TMBASE))
-				| APIC_TDR_DIV_16);
+	if (disable_apic) {
+		printk(KERN_INFO "Apic disabled\n");
+		return -1;
+	}
+	if (!cpu_has_apic) {
+		disable_apic = 1;
+		printk(KERN_INFO "Apic disabled by BIOS\n");
+		return -1;
+	}
 
-	if (!oneshot)
-		apic_write(APIC_TMICT, clocks);
-}
+	verify_local_APIC();
 
-static void setup_APIC_timer(void)
-{
-	struct clock_event_device *levt = &__get_cpu_var(lapic_events);
+	phys_cpu_present_map = physid_mask_of_physid(boot_cpu_id);
+	apic_write(APIC_ID, SET_APIC_ID(boot_cpu_id));
 
-	memcpy(levt, &lapic_clockevent, sizeof(*levt));
-	levt->cpumask = cpumask_of_cpu(smp_processor_id());
+	setup_local_APIC();
 
-	clockevents_register_device(levt);
+	if (smp_found_config && !skip_ioapic_setup && nr_ioapics)
+		setup_IO_APIC();
+	else
+		nr_ioapics = 0;
+	setup_boot_APIC_clock();
+	check_nmi_watchdog();
+	return 0;
 }
 
 /*
- * In this function we calibrate APIC bus clocks to the external
- * timer. Unfortunately we cannot use jiffies and the timer irq
- * to calibrate, since some later bootup code depends on getting
- * the first irq? Ugh.
- *
- * We want to do the calibration only once since we
- * want to have local timer irqs syncron. CPUs connected
- * by the same APIC bus have the very same bus frequency.
- * And we want to have irqs off anyways, no accidental
- * APIC irq that way.
+ * Local APIC interrupts
  */
 
-#define TICK_COUNT 100000000
-
-static void __init calibrate_APIC_clock(void)
+/*
+ * This interrupt should _never_ happen with our APIC/SMP architecture
+ */
+asmlinkage void smp_spurious_interrupt(void)
 {
-	unsigned apic, apic_start;
-	unsigned long tsc, tsc_start;
-	int result;
-
-	local_irq_disable();
-
+	unsigned int v;
+	exit_idle();
+	irq_enter();
 	/*
-	 * Put whatever arbitrary (but long enough) timeout
-	 * value into the APIC clock, we just want to get the
-	 * counter running for calibration.
-	 *
-	 * No interrupt enable !
+	 * Check if this really is a spurious interrupt and ACK it
+	 * if it is a vectored one.  Just in case...
+	 * Spurious interrupts should not be ACKed.
 	 */
-	__setup_APIC_LVTT(250000000, 0, 0);
-
-	apic_start = apic_read(APIC_TMCCT);
-#ifdef CONFIG_X86_PM_TIMER
-	if (apic_calibrate_pmtmr && pmtmr_ioport) {
-		pmtimer_wait(5000);  /* 5ms wait */
-		apic = apic_read(APIC_TMCCT);
-		result = (apic_start - apic) * 1000L / 5;
-	} else
-#endif
-	{
-		rdtscll(tsc_start);
-
-		do {
-			apic = apic_read(APIC_TMCCT);
-			rdtscll(tsc);
-		} while ((tsc - tsc_start) < TICK_COUNT &&
-				(apic_start - apic) < TICK_COUNT);
-
-		result = (apic_start - apic) * 1000L * tsc_khz /
-					(tsc - tsc_start);
-	}
-
-	local_irq_enable();
+	v = apic_read(APIC_ISR + ((SPURIOUS_APIC_VECTOR & ~0x1f) >> 1));
+	if (v & (1 << (SPURIOUS_APIC_VECTOR & 0x1f)))
+		ack_APIC_irq();
 
-	printk(KERN_DEBUG "APIC timer calibration result %d\n", result);
+	add_pda(irq_spurious_count, 1);
+	irq_exit();
+}
 
-	printk(KERN_INFO "Detected %d.%03d MHz APIC timer.\n",
-		result / 1000 / 1000, result / 1000 % 1000);
+/*
+ * This interrupt should never happen with our APIC/SMP architecture
+ */
+asmlinkage void smp_error_interrupt(void)
+{
+	unsigned int v, v1;
 
-	/* Calculate the scaled math multiplication factor */
-	lapic_clockevent.mult = div_sc(result, NSEC_PER_SEC, 32);
-	lapic_clockevent.max_delta_ns =
-		clockevent_delta2ns(0x7FFFFF, &lapic_clockevent);
-	lapic_clockevent.min_delta_ns =
-		clockevent_delta2ns(0xF, &lapic_clockevent);
+	exit_idle();
+	irq_enter();
+	/* First tickle the hardware, only then report what went on. -- REW */
+	v = apic_read(APIC_ESR);
+	apic_write(APIC_ESR, 0);
+	v1 = apic_read(APIC_ESR);
+	ack_APIC_irq();
+	atomic_inc(&irq_err_count);
 
-	calibration_result = result / HZ;
+	/* Here is what the APIC error bits mean:
+	   0: Send CS error
+	   1: Receive CS error
+	   2: Send accept error
+	   3: Receive accept error
+	   4: Reserved
+	   5: Send illegal vector
+	   6: Received illegal vector
+	   7: Illegal register address
+	*/
+	printk(KERN_DEBUG "APIC error on CPU%d: %02x(%02x)\n",
+		smp_processor_id(), v , v1);
+	irq_exit();
 }
 
-void __init setup_boot_APIC_clock (void)
+void disconnect_bsp_APIC(int virt_wire_setup)
 {
-	/*
-	 * The local apic timer can be disabled via the kernel commandline.
-	 * Register the lapic timer as a dummy clock event source on SMP
-	 * systems, so the broadcast mechanism is used. On UP systems simply
-	 * ignore it.
-	 */
-	if (disable_apic_timer) {
-		printk(KERN_INFO "Disabling APIC timer\n");
-		/* No broadcast on UP ! */
-		if (num_possible_cpus() > 1)
-			setup_APIC_timer();
-		return;
-	}
+	/* Go back to Virtual Wire compatibility mode */
+	unsigned long value;
 
-	printk(KERN_INFO "Using local APIC timer interrupts.\n");
-	calibrate_APIC_clock();
+	/* For the spurious interrupt use vector F, and enable it */
+	value = apic_read(APIC_SPIV);
+	value &= ~APIC_VECTOR_MASK;
+	value |= APIC_SPIV_APIC_ENABLED;
+	value |= 0xf;
+	apic_write(APIC_SPIV, value);
 
-	/*
-	 * If nmi_watchdog is set to IO_APIC, we need the
-	 * PIT/HPET going.  Otherwise register lapic as a dummy
-	 * device.
-	 */
-	if (nmi_watchdog != NMI_IO_APIC)
-		lapic_clockevent.features &= ~CLOCK_EVT_FEAT_DUMMY;
-	else
-		printk(KERN_WARNING "APIC timer registered as dummy,"
-		       " due to nmi_watchdog=1!\n");
+	if (!virt_wire_setup) {
+		/*
+		 * For LVT0 make it edge triggered, active high,
+		 * external and enabled
+		 */
+		value = apic_read(APIC_LVT0);
+		value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING |
+			APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR |
+			APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED);
+		value |= APIC_LVT_REMOTE_IRR | APIC_SEND_PENDING;
+		value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_EXTINT);
+		apic_write(APIC_LVT0, value);
+	} else {
+		/* Disable LVT0 */
+		apic_write(APIC_LVT0, APIC_LVT_MASKED);
+	}
 
-	setup_APIC_timer();
+	/* For LVT1 make it edge triggered, active high, nmi and enabled */
+	value = apic_read(APIC_LVT1);
+	value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING |
+			APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR |
+			APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED);
+	value |= APIC_LVT_REMOTE_IRR | APIC_SEND_PENDING;
+	value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_NMI);
+	apic_write(APIC_LVT1, value);
 }
 
 /*
- * AMD C1E enabled CPUs have a real nasty problem: Some BIOSes set the
- * C1E flag only in the secondary CPU, so when we detect the wreckage
- * we already have enabled the boot CPU local apic timer. Check, if
- * disable_apic_timer is set and the DUMMY flag is cleared. If yes,
- * set the DUMMY flag again and force the broadcast mode in the
- * clockevents layer.
+ * Power management
  */
-void __cpuinit check_boot_apic_timer_broadcast(void)
-{
-	if (!disable_apic_timer ||
-	    (lapic_clockevent.features & CLOCK_EVT_FEAT_DUMMY))
-		return;
+#ifdef CONFIG_PM
+
+static struct {
+	/* 'active' is true if the local APIC was enabled by us and
+	   not the BIOS; this signifies that we are also responsible
+	   for disabling it before entering apm/acpi suspend */
+	int active;
+	/* r/w apic fields */
+	unsigned int apic_id;
+	unsigned int apic_taskpri;
+	unsigned int apic_ldr;
+	unsigned int apic_dfr;
+	unsigned int apic_spiv;
+	unsigned int apic_lvtt;
+	unsigned int apic_lvtpc;
+	unsigned int apic_lvt0;
+	unsigned int apic_lvt1;
+	unsigned int apic_lvterr;
+	unsigned int apic_tmict;
+	unsigned int apic_tdcr;
+	unsigned int apic_thmr;
+} apic_pm_state;
+
+static int lapic_suspend(struct sys_device *dev, pm_message_t state)
+{
+	unsigned long flags;
+	int maxlvt;
 
-	printk(KERN_INFO "AMD C1E detected late. Force timer broadcast.\n");
-	lapic_clockevent.features |= CLOCK_EVT_FEAT_DUMMY;
+	if (!apic_pm_state.active)
+		return 0;
 
-	local_irq_enable();
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_FORCE, &boot_cpu_id);
-	local_irq_disable();
-}
+	maxlvt = lapic_get_maxlvt();
 
-void __cpuinit setup_secondary_APIC_clock(void)
-{
-	check_boot_apic_timer_broadcast();
-	setup_APIC_timer();
+	apic_pm_state.apic_id = apic_read(APIC_ID);
+	apic_pm_state.apic_taskpri = apic_read(APIC_TASKPRI);
+	apic_pm_state.apic_ldr = apic_read(APIC_LDR);
+	apic_pm_state.apic_dfr = apic_read(APIC_DFR);
+	apic_pm_state.apic_spiv = apic_read(APIC_SPIV);
+	apic_pm_state.apic_lvtt = apic_read(APIC_LVTT);
+	if (maxlvt >= 4)
+		apic_pm_state.apic_lvtpc = apic_read(APIC_LVTPC);
+	apic_pm_state.apic_lvt0 = apic_read(APIC_LVT0);
+	apic_pm_state.apic_lvt1 = apic_read(APIC_LVT1);
+	apic_pm_state.apic_lvterr = apic_read(APIC_LVTERR);
+	apic_pm_state.apic_tmict = apic_read(APIC_TMICT);
+	apic_pm_state.apic_tdcr = apic_read(APIC_TDCR);
+#ifdef CONFIG_X86_MCE_INTEL
+	if (maxlvt >= 5)
+		apic_pm_state.apic_thmr = apic_read(APIC_LVTTHMR);
+#endif
+	local_irq_save(flags);
+	disable_local_APIC();
+	local_irq_restore(flags);
+	return 0;
 }
 
-int setup_profiling_timer(unsigned int multiplier)
+static int lapic_resume(struct sys_device *dev)
 {
-	return -EINVAL;
-}
+	unsigned int l, h;
+	unsigned long flags;
+	int maxlvt;
 
-void setup_APIC_extended_lvt(unsigned char lvt_off, unsigned char vector,
-			     unsigned char msg_type, unsigned char mask)
-{
-	unsigned long reg = (lvt_off << 4) + K8_APIC_EXT_LVT_BASE;
-	unsigned int  v   = (mask << 16) | (msg_type << 8) | vector;
-	apic_write(reg, v);
-}
+	if (!apic_pm_state.active)
+		return 0;
 
-/*
- * Local timer interrupt handler. It does both profiling and
- * process statistics/rescheduling.
- *
- * We do profiling in every local tick, statistics/rescheduling
- * happen only every 'profiling multiplier' ticks. The default
- * multiplier is 1 and it can be changed by writing the new multiplier
- * value into /proc/profile.
- */
+	maxlvt = lapic_get_maxlvt();
 
-static void smp_local_timer_interrupt(void)
-{
-	int cpu = smp_processor_id();
-	struct clock_event_device *evt = &per_cpu(lapic_events, cpu);
+	local_irq_save(flags);
+	rdmsr(MSR_IA32_APICBASE, l, h);
+	l &= ~MSR_IA32_APICBASE_BASE;
+	l |= MSR_IA32_APICBASE_ENABLE | mp_lapic_addr;
+	wrmsr(MSR_IA32_APICBASE, l, h);
+	apic_write(APIC_LVTERR, ERROR_APIC_VECTOR | APIC_LVT_MASKED);
+	apic_write(APIC_ID, apic_pm_state.apic_id);
+	apic_write(APIC_DFR, apic_pm_state.apic_dfr);
+	apic_write(APIC_LDR, apic_pm_state.apic_ldr);
+	apic_write(APIC_TASKPRI, apic_pm_state.apic_taskpri);
+	apic_write(APIC_SPIV, apic_pm_state.apic_spiv);
+	apic_write(APIC_LVT0, apic_pm_state.apic_lvt0);
+	apic_write(APIC_LVT1, apic_pm_state.apic_lvt1);
+#ifdef CONFIG_X86_MCE_INTEL
+	if (maxlvt >= 5)
+		apic_write(APIC_LVTTHMR, apic_pm_state.apic_thmr);
+#endif
+	if (maxlvt >= 4)
+		apic_write(APIC_LVTPC, apic_pm_state.apic_lvtpc);
+	apic_write(APIC_LVTT, apic_pm_state.apic_lvtt);
+	apic_write(APIC_TDCR, apic_pm_state.apic_tdcr);
+	apic_write(APIC_TMICT, apic_pm_state.apic_tmict);
+	apic_write(APIC_ESR, 0);
+	apic_read(APIC_ESR);
+	apic_write(APIC_LVTERR, apic_pm_state.apic_lvterr);
+	apic_write(APIC_ESR, 0);
+	apic_read(APIC_ESR);
+	local_irq_restore(flags);
+	return 0;
+}
 
-	/*
-	 * Normally we should not be here till LAPIC has been initialized but
-	 * in some cases like kdump, its possible that there is a pending LAPIC
-	 * timer interrupt from previous kernel's context and is delivered in
-	 * new kernel the moment interrupts are enabled.
-	 *
-	 * Interrupts are enabled early and LAPIC is setup much later, hence
-	 * its possible that when we get here evt->event_handler is NULL.
-	 * Check for event_handler being NULL and discard the interrupt as
-	 * spurious.
-	 */
-	if (!evt->event_handler) {
-		printk(KERN_WARNING
-		       "Spurious LAPIC timer interrupt on cpu %d\n", cpu);
-		/* Switch it off */
-		lapic_timer_setup(CLOCK_EVT_MODE_SHUTDOWN, evt);
-		return;
-	}
+static struct sysdev_class lapic_sysclass = {
+	.name		= "lapic",
+	.resume		= lapic_resume,
+	.suspend	= lapic_suspend,
+};
 
-	/*
-	 * the NMI deadlock-detector uses this.
-	 */
-	add_pda(apic_timer_irqs, 1);
+static struct sys_device device_lapic = {
+	.id		= 0,
+	.cls		= &lapic_sysclass,
+};
 
-	evt->event_handler(evt);
+static void __cpuinit apic_pm_activate(void)
+{
+	apic_pm_state.active = 1;
 }
 
-/*
- * Local APIC timer interrupt. This is the most natural way for doing
- * local interrupts, but local timer interrupts can be emulated by
- * broadcast interrupts too. [in case the hw doesn't support APIC timers]
- *
- * [ if a single-CPU system runs an SMP kernel then we call the local
- *   interrupt as well. Thus we cannot inline the local irq ... ]
- */
-void smp_apic_timer_interrupt(struct pt_regs *regs)
+static int __init init_lapic_sysfs(void)
 {
-	struct pt_regs *old_regs = set_irq_regs(regs);
-
-	/*
-	 * NOTE! We'd better ACK the irq immediately,
-	 * because timer handling can be slow.
-	 */
-	ack_APIC_irq();
-	/*
-	 * update_process_times() expects us to have done irq_enter().
-	 * Besides, if we don't timer interrupts ignore the global
-	 * interrupt lock, which is the WrongThing (tm) to do.
-	 */
-	exit_idle();
-	irq_enter();
-	smp_local_timer_interrupt();
-	irq_exit();
-	set_irq_regs(old_regs);
+	int error;
+	if (!cpu_has_apic)
+		return 0;
+	/* XXX: remove suspend/resume procs if !apic_pm_state.active? */
+	error = sysdev_class_register(&lapic_sysclass);
+	if (!error)
+		error = sysdev_register(&device_lapic);
+	return error;
 }
+device_initcall(init_lapic_sysfs);
+
+#else	/* CONFIG_PM */
+
+static void apic_pm_activate(void) { }
+
+#endif	/* CONFIG_PM */
 
 /*
  * apic_is_clustered_box() -- Check if we can expect good TSC
@@ -1032,91 +1160,28 @@ __cpuinit int apic_is_clustered_box(void)
 }
 
 /*
- * This interrupt should _never_ happen with our APIC/SMP architecture
- */
-asmlinkage void smp_spurious_interrupt(void)
-{
-	unsigned int v;
-	exit_idle();
-	irq_enter();
-	/*
-	 * Check if this really is a spurious interrupt and ACK it
-	 * if it is a vectored one.  Just in case...
-	 * Spurious interrupts should not be ACKed.
-	 */
-	v = apic_read(APIC_ISR + ((SPURIOUS_APIC_VECTOR & ~0x1f) >> 1));
-	if (v & (1 << (SPURIOUS_APIC_VECTOR & 0x1f)))
-		ack_APIC_irq();
-
-	add_pda(irq_spurious_count, 1);
-	irq_exit();
-}
-
-/*
- * This interrupt should never happen with our APIC/SMP architecture
- */
-
-asmlinkage void smp_error_interrupt(void)
-{
-	unsigned int v, v1;
-
-	exit_idle();
-	irq_enter();
-	/* First tickle the hardware, only then report what went on. -- REW */
-	v = apic_read(APIC_ESR);
-	apic_write(APIC_ESR, 0);
-	v1 = apic_read(APIC_ESR);
-	ack_APIC_irq();
-	atomic_inc(&irq_err_count);
-
-	/* Here is what the APIC error bits mean:
-	   0: Send CS error
-	   1: Receive CS error
-	   2: Send accept error
-	   3: Receive accept error
-	   4: Reserved
-	   5: Send illegal vector
-	   6: Received illegal vector
-	   7: Illegal register address
-	*/
-	printk (KERN_DEBUG "APIC error on CPU%d: %02x(%02x)\n",
-		smp_processor_id(), v , v1);
-	irq_exit();
-}
-
-int disable_apic;
-
-/*
- * This initializes the IO-APIC and APIC hardware if this is
- * a UP kernel.
+ * APIC command line parameters
  */
-int __init APIC_init_uniprocessor (void)
+static int __init apic_set_verbosity(char *str)
 {
-	if (disable_apic) {
-		printk(KERN_INFO "Apic disabled\n");
-		return -1;
+	if (str == NULL)  {
+		skip_ioapic_setup = 0;
+		ioapic_force = 1;
+		return 0;
 	}
-	if (!cpu_has_apic) {
-		disable_apic = 1;
-		printk(KERN_INFO "Apic disabled by BIOS\n");
-		return -1;
+	if (strcmp("debug", str) == 0)
+		apic_verbosity = APIC_DEBUG;
+	else if (strcmp("verbose", str) == 0)
+		apic_verbosity = APIC_VERBOSE;
+	else {
+		printk(KERN_WARNING "APIC Verbosity level %s not recognised"
+				" use apic=verbose or apic=debug\n", str);
+		return -EINVAL;
 	}
 
-	verify_local_APIC();
-
-	phys_cpu_present_map = physid_mask_of_physid(boot_cpu_id);
-	apic_write(APIC_ID, SET_APIC_ID(boot_cpu_id));
-
-	setup_local_APIC();
-
-	if (smp_found_config && !skip_ioapic_setup && nr_ioapics)
-		setup_IO_APIC();
-	else
-		nr_ioapics = 0;
-	setup_boot_APIC_clock();
-	check_nmi_watchdog();
 	return 0;
 }
+early_param("apic", apic_set_verbosity);
 
 static __init int setup_disableapic(char *str)
 {
-- 
cgit v1.2.3-59-g8ed1b


From f2f58178f497ca56501d44d79982621e19c5007f Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:23 +0100
Subject: x86: simplify set_bitmap in ioport_32.c

Simplify set_bitmap(). This is not in a hotpath and we really can use the
straight forward loop through those bits. A similar implementation is used
in the 64 bit code as well.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/ioport_32.c | 32 ++++++--------------------------
 1 file changed, 6 insertions(+), 26 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ioport_32.c b/arch/x86/kernel/ioport_32.c
index 4ed48dc8df1e..c5a64011764f 100644
--- a/arch/x86/kernel/ioport_32.c
+++ b/arch/x86/kernel/ioport_32.c
@@ -16,36 +16,16 @@
 #include <linux/syscalls.h>
 
 /* Set EXTENT bits starting at BASE in BITMAP to value TURN_ON. */
-static void set_bitmap(unsigned long *bitmap, unsigned int base, unsigned int extent, int new_value)
+static void set_bitmap(unsigned long *bitmap, unsigned int base,
+		       unsigned int extent, int new_value)
 {
-	unsigned long mask;
-	unsigned long *bitmap_base = bitmap + (base / BITS_PER_LONG);
-	unsigned int low_index = base & (BITS_PER_LONG-1);
-	int length = low_index + extent;
-
-	if (low_index != 0) {
-		mask = (~0UL << low_index);
-		if (length < BITS_PER_LONG)
-			mask &= ~(~0UL << length);
-		if (new_value)
-			*bitmap_base++ |= mask;
-		else
-			*bitmap_base++ &= ~mask;
-		length -= BITS_PER_LONG;
-	}
-
-	mask = (new_value ? ~0UL : 0UL);
-	while (length >= BITS_PER_LONG) {
-		*bitmap_base++ = mask;
-		length -= BITS_PER_LONG;
-	}
+	unsigned int i;
 
-	if (length > 0) {
-		mask = ~(~0UL << length);
+	for (i = base; i < base + extent; i++) {
 		if (new_value)
-			*bitmap_base++ |= mask;
+			__set_bit(i, bitmap);
 		else
-			*bitmap_base++ &= ~mask;
+			__clear_bit(i, bitmap);
 	}
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 9a211abeaab74e2634669a64ebd82fac5d94d276 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:24 +0100
Subject: x86: clean up ioport_32.c

Remove unused variables, rename the "unused" argument to regp. It is used !
Codingstyle fixes.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/ioport_32.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ioport_32.c b/arch/x86/kernel/ioport_32.c
index c5a64011764f..c281ffa18259 100644
--- a/arch/x86/kernel/ioport_32.c
+++ b/arch/x86/kernel/ioport_32.c
@@ -29,16 +29,14 @@ static void set_bitmap(unsigned long *bitmap, unsigned int base,
 	}
 }
 
-
 /*
  * this changes the io permissions bitmap in the current task.
  */
 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 {
-	unsigned long i, max_long, bytes, bytes_updated;
 	struct thread_struct * t = &current->thread;
 	struct tss_struct * tss;
-	unsigned long *bitmap;
+	unsigned long i, max_long;
 
 	if ((from + num <= from) || (from + num > IO_BITMAP_BITS))
 		return -EINVAL;
@@ -51,7 +49,8 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 	 * this is why we delay this operation until now:
 	 */
 	if (!t->io_bitmap_ptr) {
-		bitmap = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
+		unsigned long *bitmap = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
+
 		if (!bitmap)
 			return -ENOMEM;
 
@@ -80,10 +79,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 		if (t->io_bitmap_ptr[i] != ~0UL)
 			max_long = i;
 
-	bytes = (max_long + 1) * sizeof(long);
-	bytes_updated = max(bytes, t->io_bitmap_max);
-
-	t->io_bitmap_max = bytes;
+	t->io_bitmap_max = (max_long + 1) * sizeof(unsigned long);
 
 	/*
 	 * Sets the lazy trigger so that the next I/O operation will
@@ -110,9 +106,9 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
  * code.
  */
 
-asmlinkage long sys_iopl(unsigned long unused)
+asmlinkage long sys_iopl(unsigned long regsp)
 {
-	volatile struct pt_regs * regs = (struct pt_regs *) &unused;
+	volatile struct pt_regs *regs = (struct pt_regs *)&regsp;
 	unsigned int level = regs->ebx;
 	unsigned int old = (regs->eflags >> 12) & 3;
 	struct thread_struct *t = &current->thread;
@@ -124,8 +120,10 @@ asmlinkage long sys_iopl(unsigned long unused)
 		if (!capable(CAP_SYS_RAWIO))
 			return -EPERM;
 	}
+
 	t->iopl = level << 12;
 	regs->eflags = (regs->eflags & ~X86_EFLAGS_IOPL) | t->iopl;
 	set_iopl_mask(t->iopl);
+
 	return 0;
 }
-- 
cgit v1.2.3-59-g8ed1b


From ed4aed98da8d042716d327a0b538dd8002c0a767 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:24 +0100
Subject: x86: clean up arch/x86/kernel/vsmp_64.c

White space and coding style clenaup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/vsmp_64.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/vsmp_64.c b/arch/x86/kernel/vsmp_64.c
index 414caf0c5f9a..d971210a6d36 100644
--- a/arch/x86/kernel/vsmp_64.c
+++ b/arch/x86/kernel/vsmp_64.c
@@ -25,21 +25,24 @@ static int __init vsmp_init(void)
 		return 0;
 
 	/* Check if we are running on a ScaleMP vSMP box */
-	if ((read_pci_config_16(0, 0x1f, 0, PCI_VENDOR_ID) != PCI_VENDOR_ID_SCALEMP) ||
-	    (read_pci_config_16(0, 0x1f, 0, PCI_DEVICE_ID) != PCI_DEVICE_ID_SCALEMP_VSMP_CTL))
+	if ((read_pci_config_16(0, 0x1f, 0, PCI_VENDOR_ID) !=
+	     PCI_VENDOR_ID_SCALEMP) ||
+	    (read_pci_config_16(0, 0x1f, 0, PCI_DEVICE_ID) !=
+	     PCI_DEVICE_ID_SCALEMP_VSMP_CTL))
 		return 0;
 
 	/* set vSMP magic bits to indicate vSMP capable kernel */
 	address = ioremap(read_pci_config(0, 0x1f, 0, PCI_BASE_ADDRESS_0), 8);
 	cap = readl(address);
 	ctl = readl(address + 4);
-	printk("vSMP CTL: capabilities:0x%08x  control:0x%08x\n", cap, ctl);
+	printk(KERN_INFO "vSMP CTL: capabilities:0x%08x  control:0x%08x\n",
+	       cap, ctl);
 	if (cap & ctl & (1 << 4)) {
 		/* Turn on vSMP IRQ fastpath handling (see system.h) */
 		ctl &= ~(1 << 4);
 		writel(ctl, address + 4);
 		ctl = readl(address + 4);
-		printk("vSMP CTL: control set to:0x%08x\n", ctl);
+		printk(KERN_INFO "vSMP CTL: control set to:0x%08x\n", ctl);
 	}
 
 	iounmap(address);
-- 
cgit v1.2.3-59-g8ed1b


From f8eeae682166e3b965dcdaf499932f4b63cc5b5d Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:25 +0100
Subject: x86: clean up arch/x86/mm/mmap_32/64.c

White space and coding style clenaup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/mmap_32.c |  4 ++--
 arch/x86/mm/mmap_64.c | 11 +++++++----
 2 files changed, 9 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/mmap_32.c b/arch/x86/mm/mmap_32.c
index 552e08473755..d7dd0962a6d7 100644
--- a/arch/x86/mm/mmap_32.c
+++ b/arch/x86/mm/mmap_32.c
@@ -64,8 +64,8 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	 * bit is set, or if the expected stack growth is unlimited:
 	 */
 	if (sysctl_legacy_va_layout ||
-			(current->personality & ADDR_COMPAT_LAYOUT) ||
-			current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY) {
+	    (current->personality & ADDR_COMPAT_LAYOUT) ||
+	    current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = arch_get_unmapped_area;
 		mm->unmap_area = arch_unmap_area;
diff --git a/arch/x86/mm/mmap_64.c b/arch/x86/mm/mmap_64.c
index 80bba0dc000e..ffb71a31bb6e 100644
--- a/arch/x86/mm/mmap_64.c
+++ b/arch/x86/mm/mmap_64.c
@@ -16,11 +16,14 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 #endif
 	mm->mmap_base = TASK_UNMAPPED_BASE;
 	if (current->flags & PF_RANDOMIZE) {
-		/* Add 28bit randomness which is about 40bits of address space
-		   because mmap base has to be page aligned.
- 		   or ~1/128 of the total user VM
-	   	   (total user address space is 47bits) */
+		/*
+		 * Add 28bit randomness which is about 40bits of
+		 * address space because mmap base has to be page
+		 * aligned.  or ~1/128 of the total user VM (total
+		 * user address space is 47bits)
+		 */
 		unsigned rnd = get_random_int() & 0xfffffff;
+
 		mm->mmap_base += ((unsigned long)rnd) << PAGE_SHIFT;
 	}
 	mm->get_unmapped_area = arch_get_unmapped_area;
-- 
cgit v1.2.3-59-g8ed1b


From 4ec08da02f0fda16fbc8dfa040568facaa576790 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:26 +0100
Subject: x86: remove the duplicated arch/x86/ia32/mmap32.c

Use mmap_32.c in arch/x86/mm instead

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/ia32/Makefile  |  3 +-
 arch/x86/ia32/mmap32.c  | 79 -------------------------------------------------
 arch/x86/mm/Makefile_64 |  2 +-
 arch/x86/mm/mmap_32.c   |  4 +++
 4 files changed, 6 insertions(+), 82 deletions(-)
 delete mode 100644 arch/x86/ia32/mmap32.c

(limited to 'arch')

diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index e2edda255a84..a3c997e9f39a 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -3,8 +3,7 @@
 #
 
 obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o tls32.o \
-	ia32_binfmt.o fpu32.o ptrace32.o syscall32.o syscall32_syscall.o \
-	mmap32.o
+	ia32_binfmt.o fpu32.o ptrace32.o syscall32.o syscall32_syscall.o
 
 sysv-$(CONFIG_SYSVIPC) := ipc32.o
 obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
diff --git a/arch/x86/ia32/mmap32.c b/arch/x86/ia32/mmap32.c
deleted file mode 100644
index 7649370a3144..000000000000
--- a/arch/x86/ia32/mmap32.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- *  linux/arch/x86_64/ia32/mm/mmap.c
- *
- *  flexible mmap layout support
- *
- * Based on the i386 version which was
- *
- * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- *
- * Started by Ingo Molnar <mingo@elte.hu>
- */
-
-#include <linux/personality.h>
-#include <linux/mm.h>
-#include <linux/random.h>
-#include <linux/sched.h>
-
-/*
- * Top of mmap area (just below the process stack).
- *
- * Leave an at least ~128 MB hole.
- */
-#define MIN_GAP (128 * 1024 * 1024)
-#define MAX_GAP (TASK_SIZE / 6 * 5)
-
-static inline unsigned long mmap_base(struct mm_struct *mm)
-{
-	unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;
-	unsigned long random_factor = 0;
-
-	if (current->flags & PF_RANDOMIZE)
-		random_factor = get_random_int() % (1024 * 1024);
-
-	if (gap < MIN_GAP)
-		gap = MIN_GAP;
-	else if (gap > MAX_GAP)
-		gap = MAX_GAP;
-
-	return PAGE_ALIGN(TASK_SIZE - gap - random_factor);
-}
-
-/*
- * This function, called very early during the creation of a new
- * process VM image, sets up which VM layout function to use:
- */
-void ia32_pick_mmap_layout(struct mm_struct *mm)
-{
-	/*
-	 * Fall back to the standard layout if the personality
-	 * bit is set, or if the expected stack growth is unlimited:
-	 */
-	if (sysctl_legacy_va_layout ||
-	    (current->personality & ADDR_COMPAT_LAYOUT) ||
-	    current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY) {
-		mm->mmap_base = TASK_UNMAPPED_BASE;
-		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
-	} else {
-		mm->mmap_base = mmap_base(mm);
-		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
-	}
-}
diff --git a/arch/x86/mm/Makefile_64 b/arch/x86/mm/Makefile_64
index 6bcb47945b87..d18baed54fc6 100644
--- a/arch/x86/mm/Makefile_64
+++ b/arch/x86/mm/Makefile_64
@@ -7,4 +7,4 @@ obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_NUMA) += numa_64.o
 obj-$(CONFIG_K8_NUMA) += k8topology_64.o
 obj-$(CONFIG_ACPI_NUMA) += srat_64.o
-
+obj-$(CONFIG_IA32_EMULATION) += mmap_32.o
diff --git a/arch/x86/mm/mmap_32.c b/arch/x86/mm/mmap_32.c
index d7dd0962a6d7..d490662e4af4 100644
--- a/arch/x86/mm/mmap_32.c
+++ b/arch/x86/mm/mmap_32.c
@@ -57,7 +57,11 @@ static inline unsigned long mmap_base(struct mm_struct *mm)
  * This function, called very early during the creation of a new
  * process VM image, sets up which VM layout function to use:
  */
+#ifdef CONFIG_X86_32
 void arch_pick_mmap_layout(struct mm_struct *mm)
+#else
+void ia32_pick_mmap_layout(struct mm_struct *mm)
+#endif
 {
 	/*
 	 * Fall back to the standard layout if the personality
-- 
cgit v1.2.3-59-g8ed1b


From 6ce60b07e670e800c4c5cfe984ed5188e7a64135 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:26 +0100
Subject: x86: unify mc146818rtc.h - prepare for sharing rtc code

Unify mc146818rtc.h by adding the rtc_cmos_read/write functions to
time_64.c. This is a preparatory patch to finaly share the rtc code,
which is unsurprisingly similar.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/time_64.c        | 21 +++++++++
 include/asm-x86/mc146818rtc.h    | 98 ++++++++++++++++++++++++++++++++++++++--
 include/asm-x86/mc146818rtc_32.h | 97 ---------------------------------------
 include/asm-x86/mc146818rtc_64.h | 29 ------------
 4 files changed, 116 insertions(+), 129 deletions(-)
 delete mode 100644 include/asm-x86/mc146818rtc_32.h
 delete mode 100644 include/asm-x86/mc146818rtc_64.h

(limited to 'arch')

diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index 368b1942b39a..0a01504586a5 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -69,6 +69,27 @@ unsigned long profile_pc(struct pt_regs *regs)
 }
 EXPORT_SYMBOL(profile_pc);
 
+/* Routines for accessing the CMOS RAM/RTC. */
+unsigned char rtc_cmos_read(unsigned char addr)
+{
+	unsigned char val;
+	lock_cmos_prefix(addr);
+	outb_p(addr, RTC_PORT(0));
+	val = inb_p(RTC_PORT(1));
+	lock_cmos_suffix(addr);
+	return val;
+}
+EXPORT_SYMBOL(rtc_cmos_read);
+
+void rtc_cmos_write(unsigned char val, unsigned char addr)
+{
+	lock_cmos_prefix(addr);
+	outb_p(addr, RTC_PORT(0));
+	outb_p(val, RTC_PORT(1));
+	lock_cmos_suffix(addr);
+}
+EXPORT_SYMBOL(rtc_cmos_write);
+
 /*
  * In order to set the CMOS clock precisely, set_rtc_mmss has to be called 500
  * ms after the second nowtime has started, because when nowtime is written
diff --git a/include/asm-x86/mc146818rtc.h b/include/asm-x86/mc146818rtc.h
index 5c2bb66caf17..9d39436df231 100644
--- a/include/asm-x86/mc146818rtc.h
+++ b/include/asm-x86/mc146818rtc.h
@@ -1,5 +1,97 @@
-#ifdef CONFIG_X86_32
-# include "mc146818rtc_32.h"
+/*
+ * Machine dependent access functions for RTC registers.
+ */
+#ifndef _ASM_MC146818RTC_H
+#define _ASM_MC146818RTC_H
+
+#include <asm/io.h>
+#include <asm/system.h>
+#include <asm/processor.h>
+#include <linux/mc146818rtc.h>
+
+#ifndef RTC_PORT
+#define RTC_PORT(x)	(0x70 + (x))
+#define RTC_ALWAYS_BCD	1	/* RTC operates in binary mode */
+#endif
+
+#if defined(CONFIG_X86_32) && defined(__HAVE_ARCH_CMPXCHG)
+/*
+ * This lock provides nmi access to the CMOS/RTC registers.  It has some
+ * special properties.  It is owned by a CPU and stores the index register
+ * currently being accessed (if owned).  The idea here is that it works
+ * like a normal lock (normally).  However, in an NMI, the NMI code will
+ * first check to see if its CPU owns the lock, meaning that the NMI
+ * interrupted during the read/write of the device.  If it does, it goes ahead
+ * and performs the access and then restores the index register.  If it does
+ * not, it locks normally.
+ *
+ * Note that since we are working with NMIs, we need this lock even in
+ * a non-SMP machine just to mark that the lock is owned.
+ *
+ * This only works with compare-and-swap.  There is no other way to
+ * atomically claim the lock and set the owner.
+ */
+#include <linux/smp.h>
+extern volatile unsigned long cmos_lock;
+
+/*
+ * All of these below must be called with interrupts off, preempt
+ * disabled, etc.
+ */
+
+static inline void lock_cmos(unsigned char reg)
+{
+	unsigned long new;
+	new = ((smp_processor_id()+1) << 8) | reg;
+	for (;;) {
+		if (cmos_lock) {
+			cpu_relax();
+			continue;
+		}
+		if (__cmpxchg(&cmos_lock, 0, new, sizeof(cmos_lock)) == 0)
+			return;
+	}
+}
+
+static inline void unlock_cmos(void)
+{
+	cmos_lock = 0;
+}
+static inline int do_i_have_lock_cmos(void)
+{
+	return (cmos_lock >> 8) == (smp_processor_id()+1);
+}
+static inline unsigned char current_lock_cmos_reg(void)
+{
+	return cmos_lock & 0xff;
+}
+#define lock_cmos_prefix(reg) \
+	do {					\
+		unsigned long cmos_flags;	\
+		local_irq_save(cmos_flags);	\
+		lock_cmos(reg)
+#define lock_cmos_suffix(reg) \
+		unlock_cmos();			\
+		local_irq_restore(cmos_flags);	\
+	} while (0)
 #else
-# include "mc146818rtc_64.h"
+#define lock_cmos_prefix(reg) do {} while (0)
+#define lock_cmos_suffix(reg) do {} while (0)
+#define lock_cmos(reg)
+#define unlock_cmos()
+#define do_i_have_lock_cmos() 0
+#define current_lock_cmos_reg() 0
 #endif
+
+/*
+ * The yet supported machines all access the RTC index register via
+ * an ISA port access but the way to access the date register differs ...
+ */
+#define CMOS_READ(addr) rtc_cmos_read(addr)
+#define CMOS_WRITE(val, addr) rtc_cmos_write(val, addr)
+unsigned char rtc_cmos_read(unsigned char addr);
+void rtc_cmos_write(unsigned char val, unsigned char addr);
+
+#define RTC_IRQ 8
+
+#endif /* _ASM_MC146818RTC_H */
diff --git a/include/asm-x86/mc146818rtc_32.h b/include/asm-x86/mc146818rtc_32.h
deleted file mode 100644
index 1613b42eaf58..000000000000
--- a/include/asm-x86/mc146818rtc_32.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <linux/mc146818rtc.h>
-
-#ifndef RTC_PORT
-#define RTC_PORT(x)	(0x70 + (x))
-#define RTC_ALWAYS_BCD	1	/* RTC operates in binary mode */
-#endif
-
-#ifdef __HAVE_ARCH_CMPXCHG
-/*
- * This lock provides nmi access to the CMOS/RTC registers.  It has some
- * special properties.  It is owned by a CPU and stores the index register
- * currently being accessed (if owned).  The idea here is that it works
- * like a normal lock (normally).  However, in an NMI, the NMI code will
- * first check to see if its CPU owns the lock, meaning that the NMI
- * interrupted during the read/write of the device.  If it does, it goes ahead
- * and performs the access and then restores the index register.  If it does
- * not, it locks normally.
- *
- * Note that since we are working with NMIs, we need this lock even in
- * a non-SMP machine just to mark that the lock is owned.
- *
- * This only works with compare-and-swap.  There is no other way to
- * atomically claim the lock and set the owner.
- */
-#include <linux/smp.h>
-extern volatile unsigned long cmos_lock;
-
-/*
- * All of these below must be called with interrupts off, preempt
- * disabled, etc.
- */
-
-static inline void lock_cmos(unsigned char reg)
-{
-	unsigned long new;
-	new = ((smp_processor_id()+1) << 8) | reg;
-	for (;;) {
-		if (cmos_lock) {
-			cpu_relax();
-			continue;
-		}
-		if (__cmpxchg(&cmos_lock, 0, new, sizeof(cmos_lock)) == 0)
-			return;
-	}
-}
-
-static inline void unlock_cmos(void)
-{
-	cmos_lock = 0;
-}
-static inline int do_i_have_lock_cmos(void)
-{
-	return (cmos_lock >> 8) == (smp_processor_id()+1);
-}
-static inline unsigned char current_lock_cmos_reg(void)
-{
-	return cmos_lock & 0xff;
-}
-#define lock_cmos_prefix(reg) \
-	do {					\
-		unsigned long cmos_flags;	\
-		local_irq_save(cmos_flags);	\
-		lock_cmos(reg)
-#define lock_cmos_suffix(reg) \
-		unlock_cmos();			\
-		local_irq_restore(cmos_flags);	\
-	} while (0)
-#else
-#define lock_cmos_prefix(reg) do {} while (0)
-#define lock_cmos_suffix(reg) do {} while (0)
-#define lock_cmos(reg)
-#define unlock_cmos()
-#define do_i_have_lock_cmos() 0
-#define current_lock_cmos_reg() 0
-#endif
-
-/*
- * The yet supported machines all access the RTC index register via
- * an ISA port access but the way to access the date register differs ...
- */
-#define CMOS_READ(addr) rtc_cmos_read(addr)
-#define CMOS_WRITE(val, addr) rtc_cmos_write(val, addr)
-unsigned char rtc_cmos_read(unsigned char addr);
-void rtc_cmos_write(unsigned char val, unsigned char addr);
-
-#define RTC_IRQ 8
-
-#endif /* _ASM_MC146818RTC_H */
diff --git a/include/asm-x86/mc146818rtc_64.h b/include/asm-x86/mc146818rtc_64.h
deleted file mode 100644
index d6e3009430c1..000000000000
--- a/include/asm-x86/mc146818rtc_64.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-#include <asm/io.h>
-
-#ifndef RTC_PORT
-#define RTC_PORT(x)	(0x70 + (x))
-#define RTC_ALWAYS_BCD	1	/* RTC operates in binary mode */
-#endif
-
-/*
- * The yet supported machines all access the RTC index register via
- * an ISA port access but the way to access the date register differs ...
- */
-#define CMOS_READ(addr) ({ \
-outb_p((addr),RTC_PORT(0)); \
-inb_p(RTC_PORT(1)); \
-})
-#define CMOS_WRITE(val, addr) ({ \
-outb_p((addr),RTC_PORT(0)); \
-outb_p((val),RTC_PORT(1)); \
-})
-
-#define RTC_IRQ 8
-
-#endif /* _ASM_MC146818RTC_H */
-- 
cgit v1.2.3-59-g8ed1b


From fe599f9fbc5d470ec5b55d08f2bbb991ddecbbc8 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:26 +0100
Subject: x86: isolate the rtc code for sharing

The mach-default/mach_time.h code inline is moved to arch/x86/kernel/rtc.c
and the header files are adjusted.

Shrink the 3 dozen includes to the ones we really need.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/Makefile_32              |   2 +-
 arch/x86/kernel/rtc.c                    | 166 +++++++++++++++++++++++++++++++
 arch/x86/kernel/time_32.c                | 105 +------------------
 include/asm-x86/mach-default/mach_time.h | 111 ---------------------
 include/asm-x86/mc146818rtc.h            |   3 +
 include/asm-x86/time.h                   |   2 +-
 6 files changed, 175 insertions(+), 214 deletions(-)
 create mode 100644 arch/x86/kernel/rtc.c
 delete mode 100644 include/asm-x86/mach-default/mach_time.h

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index 31ff982bc26b..eb2da53578d7 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -8,7 +8,7 @@ CPPFLAGS_vmlinux.lds += -Ui386
 obj-y	:= process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
 		ptrace_32.o time_32.o ioport_32.o ldt.o setup_32.o i8259_32.o sys_i386_32.o \
 		pci-dma_32.o i386_ksyms_32.o i387_32.o bootflag.o e820_32.o\
-		quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o io_delay.o
+		quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o io_delay.o rtc.o
 
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-y				+= cpu/
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
new file mode 100644
index 000000000000..45bf54d9f4c5
--- /dev/null
+++ b/arch/x86/kernel/rtc.c
@@ -0,0 +1,166 @@
+/*
+ * RTC related functions
+ */
+#include <linux/bcd.h>
+#include <linux/mc146818rtc.h>
+
+#include <asm/time.h>
+
+/*
+ * In order to set the CMOS clock precisely, set_rtc_mmss has to be
+ * called 500 ms after the second nowtime has started, because when
+ * nowtime is written into the registers of the CMOS clock, it will
+ * jump to the next second precisely 500 ms later. Check the Motorola
+ * MC146818A or Dallas DS12887 data sheet for details.
+ *
+ * BUG: This routine does not handle hour overflow properly; it just
+ *      sets the minutes. Usually you'll only notice that after reboot!
+ */
+int mach_set_rtc_mmss(unsigned long nowtime)
+{
+	int retval = 0;
+	int real_seconds, real_minutes, cmos_minutes;
+	unsigned char save_control, save_freq_select;
+
+	save_control = CMOS_READ(RTC_CONTROL); /* tell the clock it's being set */
+	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
+
+	save_freq_select = CMOS_READ(RTC_FREQ_SELECT); /* stop and reset prescaler */
+	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
+
+	cmos_minutes = CMOS_READ(RTC_MINUTES);
+	if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
+		BCD_TO_BIN(cmos_minutes);
+
+	/*
+	 * since we're only adjusting minutes and seconds,
+	 * don't interfere with hour overflow. This avoids
+	 * messing with unknown time zones but requires your
+	 * RTC not to be off by more than 15 minutes
+	 */
+	real_seconds = nowtime % 60;
+	real_minutes = nowtime / 60;
+	if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
+		real_minutes += 30;		/* correct for half hour time zone */
+	real_minutes %= 60;
+
+	if (abs(real_minutes - cmos_minutes) < 30) {
+		if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
+			BIN_TO_BCD(real_seconds);
+			BIN_TO_BCD(real_minutes);
+		}
+		CMOS_WRITE(real_seconds,RTC_SECONDS);
+		CMOS_WRITE(real_minutes,RTC_MINUTES);
+	} else {
+		printk(KERN_WARNING
+		       "set_rtc_mmss: can't update from %d to %d\n",
+		       cmos_minutes, real_minutes);
+		retval = -1;
+	}
+
+	/* The following flags have to be released exactly in this order,
+	 * otherwise the DS12887 (popular MC146818A clone with integrated
+	 * battery and quartz) will not reset the oscillator and will not
+	 * update precisely 500 ms later. You won't find this mentioned in
+	 * the Dallas Semiconductor data sheets, but who believes data
+	 * sheets anyway ...                           -- Markus Kuhn
+	 */
+	CMOS_WRITE(save_control, RTC_CONTROL);
+	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
+
+	return retval;
+}
+
+unsigned long mach_get_cmos_time(void)
+{
+	unsigned int year, mon, day, hour, min, sec;
+
+	do {
+		sec = CMOS_READ(RTC_SECONDS);
+		min = CMOS_READ(RTC_MINUTES);
+		hour = CMOS_READ(RTC_HOURS);
+		day = CMOS_READ(RTC_DAY_OF_MONTH);
+		mon = CMOS_READ(RTC_MONTH);
+		year = CMOS_READ(RTC_YEAR);
+	} while (sec != CMOS_READ(RTC_SECONDS));
+
+	if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
+		BCD_TO_BIN(sec);
+		BCD_TO_BIN(min);
+		BCD_TO_BIN(hour);
+		BCD_TO_BIN(day);
+		BCD_TO_BIN(mon);
+		BCD_TO_BIN(year);
+	}
+
+	year += 1900;
+	if (year < 1970)
+		year += 100;
+
+	return mktime(year, mon, day, hour, min, sec);
+}
+
+DEFINE_SPINLOCK(rtc_lock);
+EXPORT_SYMBOL(rtc_lock);
+
+/*
+ * This is a special lock that is owned by the CPU and holds the index
+ * register we are working with.  It is required for NMI access to the
+ * CMOS/RTC registers.  See include/asm-i386/mc146818rtc.h for details.
+ */
+volatile unsigned long cmos_lock = 0;
+EXPORT_SYMBOL(cmos_lock);
+
+/* Routines for accessing the CMOS RAM/RTC. */
+unsigned char rtc_cmos_read(unsigned char addr)
+{
+	unsigned char val;
+
+	lock_cmos_prefix(addr);
+	outb_p(addr, RTC_PORT(0));
+	val = inb_p(RTC_PORT(1));
+	lock_cmos_suffix(addr);
+	return val;
+}
+EXPORT_SYMBOL(rtc_cmos_read);
+
+void rtc_cmos_write(unsigned char val, unsigned char addr)
+{
+	lock_cmos_prefix(addr);
+	outb_p(addr, RTC_PORT(0));
+	outb_p(val, RTC_PORT(1));
+	lock_cmos_suffix(addr);
+}
+EXPORT_SYMBOL(rtc_cmos_write);
+
+static int set_rtc_mmss(unsigned long nowtime)
+{
+	int retval;
+	unsigned long flags;
+
+	/* gets recalled with irq locally disabled */
+	/* XXX - does irqsave resolve this? -johnstul */
+	spin_lock_irqsave(&rtc_lock, flags);
+	retval = set_wallclock(nowtime);
+	spin_unlock_irqrestore(&rtc_lock, flags);
+
+	return retval;
+}
+
+/* not static: needed by APM */
+unsigned long read_persistent_clock(void)
+{
+	unsigned long retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+	retval = get_wallclock();
+	spin_unlock_irqrestore(&rtc_lock, flags);
+
+	return retval;
+}
+
+int update_persistent_clock(struct timespec now)
+{
+	return set_rtc_mmss(now.tv_sec);
+}
diff --git a/arch/x86/kernel/time_32.c b/arch/x86/kernel/time_32.c
index 8a322c96bc23..e9ead762abe8 100644
--- a/arch/x86/kernel/time_32.c
+++ b/arch/x86/kernel/time_32.c
@@ -28,98 +28,21 @@
  *	serialize accesses to xtime/lost_ticks).
  */
 
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
+#include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/time.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/module.h>
-#include <linux/sysdev.h>
-#include <linux/bcd.h>
-#include <linux/efi.h>
 #include <linux/mca.h>
 
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <asm/irq.h>
-#include <asm/msr.h>
-#include <asm/delay.h>
-#include <asm/mpspec.h>
-#include <asm/uaccess.h>
-#include <asm/processor.h>
-#include <asm/timer.h>
-#include <asm/time.h>
-
-#include "mach_time.h"
-
-#include <linux/timex.h>
-
-#include <asm/hpet.h>
-
 #include <asm/arch_hooks.h>
+#include <asm/hpet.h>
+#include <asm/time.h>
 
 #include "io_ports.h"
-
-#include <asm/i8259.h>
-
 #include "do_timer.h"
 
 unsigned int cpu_khz;	/* Detected as we calibrate the TSC */
 EXPORT_SYMBOL(cpu_khz);
 
-DEFINE_SPINLOCK(rtc_lock);
-EXPORT_SYMBOL(rtc_lock);
-
-/*
- * This is a special lock that is owned by the CPU and holds the index
- * register we are working with.  It is required for NMI access to the
- * CMOS/RTC registers.  See include/asm-i386/mc146818rtc.h for details.
- */
-volatile unsigned long cmos_lock = 0;
-EXPORT_SYMBOL(cmos_lock);
-
-/* Routines for accessing the CMOS RAM/RTC. */
-unsigned char rtc_cmos_read(unsigned char addr)
-{
-	unsigned char val;
-	lock_cmos_prefix(addr);
-	outb_p(addr, RTC_PORT(0));
-	val = inb_p(RTC_PORT(1));
-	lock_cmos_suffix(addr);
-	return val;
-}
-EXPORT_SYMBOL(rtc_cmos_read);
-
-void rtc_cmos_write(unsigned char val, unsigned char addr)
-{
-	lock_cmos_prefix(addr);
-	outb_p(addr, RTC_PORT(0));
-	outb_p(val, RTC_PORT(1));
-	lock_cmos_suffix(addr);
-}
-EXPORT_SYMBOL(rtc_cmos_write);
-
-static int set_rtc_mmss(unsigned long nowtime)
-{
-	int retval;
-	unsigned long flags;
-
-	/* gets recalled with irq locally disabled */
-	/* XXX - does irqsave resolve this? -johnstul */
-	spin_lock_irqsave(&rtc_lock, flags);
-	retval = set_wallclock(nowtime);
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	return retval;
-}
-
-
 int timer_ack;
 
 unsigned long profile_pc(struct pt_regs *regs)
@@ -137,7 +60,7 @@ unsigned long profile_pc(struct pt_regs *regs)
 		/* Return address is either directly at stack pointer
 		   or above a saved eflags. Eflags has bits 22-31 zero,
 		   kernel addresses don't. */
- 		if (sp[0] >> 22)
+		if (sp[0] >> 22)
 			return sp[0];
 		if (sp[1] >> 22)
 			return sp[1];
@@ -193,26 +116,6 @@ irqreturn_t timer_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-/* not static: needed by APM */
-unsigned long read_persistent_clock(void)
-{
-	unsigned long retval;
-	unsigned long flags;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-
-	retval = get_wallclock();
-
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	return retval;
-}
-
-int update_persistent_clock(struct timespec now)
-{
-	return set_rtc_mmss(now.tv_sec);
-}
-
 extern void (*late_time_init)(void);
 /* Duplicate of time_init() below, with hpet_enable part added */
 void __init hpet_time_init(void)
diff --git a/include/asm-x86/mach-default/mach_time.h b/include/asm-x86/mach-default/mach_time.h
deleted file mode 100644
index 31eb5de6f3dc..000000000000
--- a/include/asm-x86/mach-default/mach_time.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- *  include/asm-i386/mach-default/mach_time.h
- *
- *  Machine specific set RTC function for generic.
- *  Split out from time.c by Osamu Tomita <tomita@cinet.co.jp>
- */
-#ifndef _MACH_TIME_H
-#define _MACH_TIME_H
-
-#include <linux/mc146818rtc.h>
-
-/* for check timing call set_rtc_mmss() 500ms     */
-/* used in arch/i386/time.c::do_timer_interrupt() */
-#define USEC_AFTER	500000
-#define USEC_BEFORE	500000
-
-/*
- * In order to set the CMOS clock precisely, set_rtc_mmss has to be
- * called 500 ms after the second nowtime has started, because when
- * nowtime is written into the registers of the CMOS clock, it will
- * jump to the next second precisely 500 ms later. Check the Motorola
- * MC146818A or Dallas DS12887 data sheet for details.
- *
- * BUG: This routine does not handle hour overflow properly; it just
- *      sets the minutes. Usually you'll only notice that after reboot!
- */
-static inline int mach_set_rtc_mmss(unsigned long nowtime)
-{
-	int retval = 0;
-	int real_seconds, real_minutes, cmos_minutes;
-	unsigned char save_control, save_freq_select;
-
-	save_control = CMOS_READ(RTC_CONTROL); /* tell the clock it's being set */
-	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
-
-	save_freq_select = CMOS_READ(RTC_FREQ_SELECT); /* stop and reset prescaler */
-	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
-
-	cmos_minutes = CMOS_READ(RTC_MINUTES);
-	if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
-		BCD_TO_BIN(cmos_minutes);
-
-	/*
-	 * since we're only adjusting minutes and seconds,
-	 * don't interfere with hour overflow. This avoids
-	 * messing with unknown time zones but requires your
-	 * RTC not to be off by more than 15 minutes
-	 */
-	real_seconds = nowtime % 60;
-	real_minutes = nowtime / 60;
-	if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
-		real_minutes += 30;		/* correct for half hour time zone */
-	real_minutes %= 60;
-
-	if (abs(real_minutes - cmos_minutes) < 30) {
-		if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
-			BIN_TO_BCD(real_seconds);
-			BIN_TO_BCD(real_minutes);
-		}
-		CMOS_WRITE(real_seconds,RTC_SECONDS);
-		CMOS_WRITE(real_minutes,RTC_MINUTES);
-	} else {
-		printk(KERN_WARNING
-		       "set_rtc_mmss: can't update from %d to %d\n",
-		       cmos_minutes, real_minutes);
-		retval = -1;
-	}
-
-	/* The following flags have to be released exactly in this order,
-	 * otherwise the DS12887 (popular MC146818A clone with integrated
-	 * battery and quartz) will not reset the oscillator and will not
-	 * update precisely 500 ms later. You won't find this mentioned in
-	 * the Dallas Semiconductor data sheets, but who believes data
-	 * sheets anyway ...                           -- Markus Kuhn
-	 */
-	CMOS_WRITE(save_control, RTC_CONTROL);
-	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
-
-	return retval;
-}
-
-static inline unsigned long mach_get_cmos_time(void)
-{
-	unsigned int year, mon, day, hour, min, sec;
-
-	do {
-		sec = CMOS_READ(RTC_SECONDS);
-		min = CMOS_READ(RTC_MINUTES);
-		hour = CMOS_READ(RTC_HOURS);
-		day = CMOS_READ(RTC_DAY_OF_MONTH);
-		mon = CMOS_READ(RTC_MONTH);
-		year = CMOS_READ(RTC_YEAR);
-	} while (sec != CMOS_READ(RTC_SECONDS));
-
-	if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
-		BCD_TO_BIN(sec);
-		BCD_TO_BIN(min);
-		BCD_TO_BIN(hour);
-		BCD_TO_BIN(day);
-		BCD_TO_BIN(mon);
-		BCD_TO_BIN(year);
-	}
-
-	year += 1900;
-	if (year < 1970)
-		year += 100;
-
-	return mktime(year, mon, day, hour, min, sec);
-}
-
-#endif /* !_MACH_TIME_H */
diff --git a/include/asm-x86/mc146818rtc.h b/include/asm-x86/mc146818rtc.h
index 9d39436df231..cdd9f965835a 100644
--- a/include/asm-x86/mc146818rtc.h
+++ b/include/asm-x86/mc146818rtc.h
@@ -92,6 +92,9 @@ static inline unsigned char current_lock_cmos_reg(void)
 unsigned char rtc_cmos_read(unsigned char addr);
 void rtc_cmos_write(unsigned char val, unsigned char addr);
 
+extern int mach_set_rtc_mmss(unsigned long nowtime);
+extern unsigned long mach_get_cmos_time(void);
+
 #define RTC_IRQ 8
 
 #endif /* _ASM_MC146818RTC_H */
diff --git a/include/asm-x86/time.h b/include/asm-x86/time.h
index eac011366dc2..b3f94cd81ac6 100644
--- a/include/asm-x86/time.h
+++ b/include/asm-x86/time.h
@@ -2,7 +2,7 @@
 #define _ASMi386_TIME_H
 
 #include <linux/efi.h>
-#include "mach_time.h"
+#include <asm/mc146818rtc.h>
 
 static inline unsigned long native_get_wallclock(void)
 {
-- 
cgit v1.2.3-59-g8ed1b


From 1122b134bcd6e77c5a4117952b8cbc55c8d018bc Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:27 +0100
Subject: x86: share rtc code

Remove the rtc code from time_64.c and add the extra bits to the
i386 path. The ACPI century check is probably valid for i386 as
well, but this is material for a separate patch.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/Makefile_64 |   2 +-
 arch/x86/kernel/rtc.c       |  96 +++++++++++++++++----------
 arch/x86/kernel/time_64.c   | 157 --------------------------------------------
 3 files changed, 64 insertions(+), 191 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index 9cb3df27c413..ae95d21ea885 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -11,7 +11,7 @@ obj-y	:= process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
 		x8664_ksyms_64.o i387_64.o syscall_64.o vsyscall_64.o \
 		setup64.o bootflag.o e820_64.o reboot_64.o quirks.o i8237.o \
 		pci-dma_64.o pci-nommu_64.o alternative.o hpet.o tsc_64.o bugs_64.o \
-		i8253.o io_delay.o
+		i8253.o io_delay.o rtc.o
 
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-y				+= cpu/
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 45bf54d9f4c5..d040840ff1b6 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -1,11 +1,32 @@
 /*
  * RTC related functions
  */
+#include <linux/acpi.h>
 #include <linux/bcd.h>
 #include <linux/mc146818rtc.h>
 
 #include <asm/time.h>
 
+#ifdef CONFIG_X86_32
+# define CMOS_YEARS_OFFS 1900
+/*
+ * This is a special lock that is owned by the CPU and holds the index
+ * register we are working with.  It is required for NMI access to the
+ * CMOS/RTC registers.  See include/asm-i386/mc146818rtc.h for details.
+ */
+volatile unsigned long cmos_lock = 0;
+EXPORT_SYMBOL(cmos_lock);
+#else
+/*
+ * x86-64 systems only exists since 2002.
+ * This will work up to Dec 31, 2100
+ */
+# define CMOS_YEARS_OFFS 2000
+#endif
+
+DEFINE_SPINLOCK(rtc_lock);
+EXPORT_SYMBOL(rtc_lock);
+
 /*
  * In order to set the CMOS clock precisely, set_rtc_mmss has to be
  * called 500 ms after the second nowtime has started, because when
@@ -22,10 +43,12 @@ int mach_set_rtc_mmss(unsigned long nowtime)
 	int real_seconds, real_minutes, cmos_minutes;
 	unsigned char save_control, save_freq_select;
 
-	save_control = CMOS_READ(RTC_CONTROL); /* tell the clock it's being set */
+	 /* tell the clock it's being set */
+	save_control = CMOS_READ(RTC_CONTROL);
 	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
 
-	save_freq_select = CMOS_READ(RTC_FREQ_SELECT); /* stop and reset prescaler */
+	/* stop and reset prescaler */
+	save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
 	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
 
 	cmos_minutes = CMOS_READ(RTC_MINUTES);
@@ -40,8 +63,9 @@ int mach_set_rtc_mmss(unsigned long nowtime)
 	 */
 	real_seconds = nowtime % 60;
 	real_minutes = nowtime / 60;
+	/* correct for half hour time zone */
 	if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
-		real_minutes += 30;		/* correct for half hour time zone */
+		real_minutes += 30;
 	real_minutes %= 60;
 
 	if (abs(real_minutes - cmos_minutes) < 30) {
@@ -73,18 +97,32 @@ int mach_set_rtc_mmss(unsigned long nowtime)
 
 unsigned long mach_get_cmos_time(void)
 {
-	unsigned int year, mon, day, hour, min, sec;
-
-	do {
-		sec = CMOS_READ(RTC_SECONDS);
-		min = CMOS_READ(RTC_MINUTES);
-		hour = CMOS_READ(RTC_HOURS);
-		day = CMOS_READ(RTC_DAY_OF_MONTH);
-		mon = CMOS_READ(RTC_MONTH);
-		year = CMOS_READ(RTC_YEAR);
-	} while (sec != CMOS_READ(RTC_SECONDS));
-
-	if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
+	unsigned int year, mon, day, hour, min, sec, century = 0;
+
+	/*
+	 * If UIP is clear, then we have >= 244 microseconds before
+	 * RTC registers will be updated.  Spec sheet says that this
+	 * is the reliable way to read RTC - registers. If UIP is set
+	 * then the register access might be invalid.
+	 */
+	while ((CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
+		cpu_relax();
+
+	sec = CMOS_READ(RTC_SECONDS);
+	min = CMOS_READ(RTC_MINUTES);
+	hour = CMOS_READ(RTC_HOURS);
+	day = CMOS_READ(RTC_DAY_OF_MONTH);
+	mon = CMOS_READ(RTC_MONTH);
+	year = CMOS_READ(RTC_YEAR);
+
+#if defined(CONFIG_ACPI) && defined(CONFIG_X86_64)
+	/* CHECKME: Is this really 64bit only ??? */
+	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
+	    acpi_gbl_FADT.century)
+		century = CMOS_READ(acpi_gbl_FADT.century);
+#endif
+
+	if (RTC_ALWAYS_BCD || !(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY)) {
 		BCD_TO_BIN(sec);
 		BCD_TO_BIN(min);
 		BCD_TO_BIN(hour);
@@ -93,24 +131,19 @@ unsigned long mach_get_cmos_time(void)
 		BCD_TO_BIN(year);
 	}
 
-	year += 1900;
-	if (year < 1970)
-		year += 100;
+	if (century) {
+		BCD_TO_BIN(century);
+		year += century * 100;
+		printk(KERN_INFO "Extended CMOS year: %d\n", century * 100);
+	} else {
+		year += CMOS_YEARS_OFFS;
+		if (year < 1970)
+			year += 100;
+	}
 
 	return mktime(year, mon, day, hour, min, sec);
 }
 
-DEFINE_SPINLOCK(rtc_lock);
-EXPORT_SYMBOL(rtc_lock);
-
-/*
- * This is a special lock that is owned by the CPU and holds the index
- * register we are working with.  It is required for NMI access to the
- * CMOS/RTC registers.  See include/asm-i386/mc146818rtc.h for details.
- */
-volatile unsigned long cmos_lock = 0;
-EXPORT_SYMBOL(cmos_lock);
-
 /* Routines for accessing the CMOS RAM/RTC. */
 unsigned char rtc_cmos_read(unsigned char addr)
 {
@@ -138,8 +171,6 @@ static int set_rtc_mmss(unsigned long nowtime)
 	int retval;
 	unsigned long flags;
 
-	/* gets recalled with irq locally disabled */
-	/* XXX - does irqsave resolve this? -johnstul */
 	spin_lock_irqsave(&rtc_lock, flags);
 	retval = set_wallclock(nowtime);
 	spin_unlock_irqrestore(&rtc_lock, flags);
@@ -150,8 +181,7 @@ static int set_rtc_mmss(unsigned long nowtime)
 /* not static: needed by APM */
 unsigned long read_persistent_clock(void)
 {
-	unsigned long retval;
-	unsigned long flags;
+	unsigned long retval, flags;
 
 	spin_lock_irqsave(&rtc_lock, flags);
 	retval = get_wallclock();
diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index 0a01504586a5..64cd03ed9bfc 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -46,9 +46,6 @@
 #include <asm/nmi.h>
 #include <asm/vgtod.h>
 
-DEFINE_SPINLOCK(rtc_lock);
-EXPORT_SYMBOL(rtc_lock);
-
 volatile unsigned long __jiffies __section_jiffies = INITIAL_JIFFIES;
 
 unsigned long profile_pc(struct pt_regs *regs)
@@ -69,103 +66,6 @@ unsigned long profile_pc(struct pt_regs *regs)
 }
 EXPORT_SYMBOL(profile_pc);
 
-/* Routines for accessing the CMOS RAM/RTC. */
-unsigned char rtc_cmos_read(unsigned char addr)
-{
-	unsigned char val;
-	lock_cmos_prefix(addr);
-	outb_p(addr, RTC_PORT(0));
-	val = inb_p(RTC_PORT(1));
-	lock_cmos_suffix(addr);
-	return val;
-}
-EXPORT_SYMBOL(rtc_cmos_read);
-
-void rtc_cmos_write(unsigned char val, unsigned char addr)
-{
-	lock_cmos_prefix(addr);
-	outb_p(addr, RTC_PORT(0));
-	outb_p(val, RTC_PORT(1));
-	lock_cmos_suffix(addr);
-}
-EXPORT_SYMBOL(rtc_cmos_write);
-
-/*
- * In order to set the CMOS clock precisely, set_rtc_mmss has to be called 500
- * ms after the second nowtime has started, because when nowtime is written
- * into the registers of the CMOS clock, it will jump to the next second
- * precisely 500 ms later. Check the Motorola MC146818A or Dallas DS12887 data
- * sheet for details.
- */
-
-static int set_rtc_mmss(unsigned long nowtime)
-{
-	int retval = 0;
-	int real_seconds, real_minutes, cmos_minutes;
-	unsigned char control, freq_select;
-	unsigned long flags;
-
-/*
- * set_rtc_mmss is called when irqs are enabled, so disable irqs here
- */
-	spin_lock_irqsave(&rtc_lock, flags);
-/*
- * Tell the clock it's being set and stop it.
- */
-	control = CMOS_READ(RTC_CONTROL);
-	CMOS_WRITE(control | RTC_SET, RTC_CONTROL);
-
-	freq_select = CMOS_READ(RTC_FREQ_SELECT);
-	CMOS_WRITE(freq_select | RTC_DIV_RESET2, RTC_FREQ_SELECT);
-
-	cmos_minutes = CMOS_READ(RTC_MINUTES);
-		BCD_TO_BIN(cmos_minutes);
-
-/*
- * since we're only adjusting minutes and seconds, don't interfere with hour
- * overflow. This avoids messing with unknown time zones but requires your RTC
- * not to be off by more than 15 minutes. Since we're calling it only when
- * our clock is externally synchronized using NTP, this shouldn't be a problem.
- */
-
-	real_seconds = nowtime % 60;
-	real_minutes = nowtime / 60;
-	if (((abs(real_minutes - cmos_minutes) + 15) / 30) & 1)
-		real_minutes += 30;		/* correct for half hour time zone */
-	real_minutes %= 60;
-
-	if (abs(real_minutes - cmos_minutes) >= 30) {
-		printk(KERN_WARNING "time.c: can't update CMOS clock "
-		       "from %d to %d\n", cmos_minutes, real_minutes);
-		retval = -1;
-	} else {
-		BIN_TO_BCD(real_seconds);
-		BIN_TO_BCD(real_minutes);
-		CMOS_WRITE(real_seconds, RTC_SECONDS);
-		CMOS_WRITE(real_minutes, RTC_MINUTES);
-	}
-
-/*
- * The following flags have to be released exactly in this order, otherwise the
- * DS12887 (popular MC146818A clone with integrated battery and quartz) will
- * not reset the oscillator and will not update precisely 500 ms later. You
- * won't find this mentioned in the Dallas Semiconductor data sheets, but who
- * believes data sheets anyway ... -- Markus Kuhn
- */
-
-	CMOS_WRITE(control, RTC_CONTROL);
-	CMOS_WRITE(freq_select, RTC_FREQ_SELECT);
-
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	return retval;
-}
-
-int update_persistent_clock(struct timespec now)
-{
-	return set_rtc_mmss(now.tv_sec);
-}
-
 static irqreturn_t timer_event_interrupt(int irq, void *dev_id)
 {
 	add_pda(irq0_irqs, 1);
@@ -175,63 +75,6 @@ static irqreturn_t timer_event_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-unsigned long read_persistent_clock(void)
-{
-	unsigned int year, mon, day, hour, min, sec;
-	unsigned long flags;
-	unsigned century = 0;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-	/*
-	 * if UIP is clear, then we have >= 244 microseconds before RTC
-	 * registers will be updated.  Spec sheet says that this is the
-	 * reliable way to read RTC - registers invalid (off bus) during update
-	 */
-	while ((CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
-		cpu_relax();
-
-
-	/* now read all RTC registers while stable with interrupts disabled */
-	sec = CMOS_READ(RTC_SECONDS);
-	min = CMOS_READ(RTC_MINUTES);
-	hour = CMOS_READ(RTC_HOURS);
-	day = CMOS_READ(RTC_DAY_OF_MONTH);
-	mon = CMOS_READ(RTC_MONTH);
-	year = CMOS_READ(RTC_YEAR);
-#ifdef CONFIG_ACPI
-	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
-				acpi_gbl_FADT.century)
-		century = CMOS_READ(acpi_gbl_FADT.century);
-#endif
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	/*
-	 * We know that x86-64 always uses BCD format, no need to check the
-	 * config register.
-	 */
-
-	BCD_TO_BIN(sec);
-	BCD_TO_BIN(min);
-	BCD_TO_BIN(hour);
-	BCD_TO_BIN(day);
-	BCD_TO_BIN(mon);
-	BCD_TO_BIN(year);
-
-	if (century) {
-		BCD_TO_BIN(century);
-		year += century * 100;
-		printk(KERN_INFO "Extended CMOS year: %d\n", century * 100);
-	} else {
-		/*
-		 * x86-64 systems only exists since 2002.
-		 * This will work up to Dec 31, 2100
-		 */
-		year += 2000;
-	}
-
-	return mktime(year, mon, day, hour, min, sec);
-}
-
 /* calibrate_cpu is used on systems with fixed rate TSCs to determine
  * processor frequency */
 #define TICK_COUNT 100000000
-- 
cgit v1.2.3-59-g8ed1b


From 081e10b96e971da2eba05ab1ecbf2c051fa119f6 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:27 +0100
Subject: x86: clean up arch/x86/kernel/time_64.c includes

Reduce the lets include all to the minimum.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/time_64.c | 30 +++---------------------------
 1 file changed, 3 insertions(+), 27 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index 64cd03ed9bfc..f88bf6b802e3 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -11,38 +11,14 @@
  *  RTC support code taken from arch/i386/kernel/timers/time_hpet.c
  */
 
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
+#include <linux/clockchips.h>
 #include <linux/init.h>
-#include <linux/mc146818rtc.h>
-#include <linux/time.h>
-#include <linux/ioport.h>
+#include <linux/interrupt.h>
 #include <linux/module.h>
-#include <linux/device.h>
-#include <linux/sysdev.h>
-#include <linux/bcd.h>
-#include <linux/notifier.h>
-#include <linux/cpu.h>
-#include <linux/kallsyms.h>
-#include <linux/acpi.h>
-#include <linux/clockchips.h>
+#include <linux/time.h>
 
-#ifdef CONFIG_ACPI
-#include <acpi/achware.h>	/* for PM timer frequency */
-#include <acpi/acpi_bus.h>
-#endif
 #include <asm/i8253.h>
-#include <asm/pgtable.h>
-#include <asm/vsyscall.h>
-#include <asm/timex.h>
-#include <asm/proto.h>
-#include <asm/hpet.h>
-#include <asm/sections.h>
-#include <linux/hpet.h>
-#include <asm/apic.h>
 #include <asm/hpet.h>
-#include <asm/mpspec.h>
 #include <asm/nmi.h>
 #include <asm/vgtod.h>
 
-- 
cgit v1.2.3-59-g8ed1b


From 16da2f93054fc379522b93afc71d49751bd8be2b Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:27 +0100
Subject: x86: smp_64.c: remove unused exports and cleanup while at it

The exports are nowhere used. There is even no reason why they were
ever introduced.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/smp_64.c | 74 +++++++++++++++++++++++-------------------------
 1 file changed, 35 insertions(+), 39 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/smp_64.c b/arch/x86/kernel/smp_64.c
index 03fa6ed559c6..62b0f2a1b1e8 100644
--- a/arch/x86/kernel/smp_64.c
+++ b/arch/x86/kernel/smp_64.c
@@ -29,7 +29,7 @@
 #include <asm/idle.h>
 
 /*
- *	Smarter SMP flushing macros. 
+ *	Smarter SMP flushing macros.
  *		c/o Linus Torvalds.
  *
  *	These mean you can really definitely utterly forget about
@@ -37,15 +37,15 @@
  *
  *	Optimizations Manfred Spraul <manfred@colorfullife.com>
  *
- * 	More scalable flush, from Andi Kleen
+ *	More scalable flush, from Andi Kleen
  *
- * 	To avoid global state use 8 different call vectors.
- * 	Each CPU uses a specific vector to trigger flushes on other
- * 	CPUs. Depending on the received vector the target CPUs look into
+ *	To avoid global state use 8 different call vectors.
+ *	Each CPU uses a specific vector to trigger flushes on other
+ *	CPUs. Depending on the received vector the target CPUs look into
  *	the right per cpu variable for the flush data.
  *
- * 	With more than 8 CPUs they are hashed to the 8 available
- * 	vectors. The limited global vector space forces us to this right now.
+ *	With more than 8 CPUs they are hashed to the 8 available
+ *	vectors. The limited global vector space forces us to this right now.
  *	In future when interrupts are split into per CPU domains this could be
  *	fixed, at the cost of triggering multiple IPIs in some cases.
  */
@@ -67,7 +67,7 @@ union smp_flush_state {
 static DEFINE_PER_CPU(union smp_flush_state, flush_state);
 
 /*
- * We cannot call mmdrop() because we are in interrupt context, 
+ * We cannot call mmdrop() because we are in interrupt context,
  * instead update mm->cpu_vm_mask.
  */
 static inline void leave_mm(int cpu)
@@ -85,25 +85,25 @@ static inline void leave_mm(int cpu)
  * 1) switch_mm() either 1a) or 1b)
  * 1a) thread switch to a different mm
  * 1a1) cpu_clear(cpu, old_mm->cpu_vm_mask);
- * 	Stop ipi delivery for the old mm. This is not synchronized with
- * 	the other cpus, but smp_invalidate_interrupt ignore flush ipis
- * 	for the wrong mm, and in the worst case we perform a superfluous
- * 	tlb flush.
+ *	Stop ipi delivery for the old mm. This is not synchronized with
+ *	the other cpus, but smp_invalidate_interrupt ignore flush ipis
+ *	for the wrong mm, and in the worst case we perform a superfluous
+ *	tlb flush.
  * 1a2) set cpu mmu_state to TLBSTATE_OK
- * 	Now the smp_invalidate_interrupt won't call leave_mm if cpu0
+ *	Now the smp_invalidate_interrupt won't call leave_mm if cpu0
  *	was in lazy tlb mode.
  * 1a3) update cpu active_mm
- * 	Now cpu0 accepts tlb flushes for the new mm.
+ *	Now cpu0 accepts tlb flushes for the new mm.
  * 1a4) cpu_set(cpu, new_mm->cpu_vm_mask);
- * 	Now the other cpus will send tlb flush ipis.
+ *	Now the other cpus will send tlb flush ipis.
  * 1a4) change cr3.
  * 1b) thread switch without mm change
  *	cpu active_mm is correct, cpu0 already handles
  *	flush ipis.
  * 1b1) set cpu mmu_state to TLBSTATE_OK
  * 1b2) test_and_set the cpu bit in cpu_vm_mask.
- * 	Atomically set the bit [other cpus will start sending flush ipis],
- * 	and test the bit.
+ *	Atomically set the bit [other cpus will start sending flush ipis],
+ *	and test the bit.
  * 1b3) if the bit was 0: leave_mm was called, flush the tlb.
  * 2) switch %%esp, ie current
  *
@@ -142,7 +142,7 @@ asmlinkage void smp_invalidate_interrupt(struct pt_regs *regs)
 
 	if (!cpu_isset(cpu, f->flush_cpumask))
 		goto out;
-		/* 
+		/*
 		 * This was a BUG() but until someone can quote me the
 		 * line from the intel manual that guarantees an IPI to
 		 * multiple CPUs is retried _only_ on the erroring CPUs
@@ -150,7 +150,7 @@ asmlinkage void smp_invalidate_interrupt(struct pt_regs *regs)
 		 *
 		 * BUG();
 		 */
-		 
+
 	if (f->flush_mm == read_pda(active_mm)) {
 		if (read_pda(mmu_state) == TLBSTATE_OK) {
 			if (f->flush_va == FLUSH_ALL)
@@ -176,9 +176,11 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
 	sender = smp_processor_id() % NUM_INVALIDATE_TLB_VECTORS;
 	f = &per_cpu(flush_state, sender);
 
-	/* Could avoid this lock when
-	   num_online_cpus() <= NUM_INVALIDATE_TLB_VECTORS, but it is
-	   probably not worth checking this for a cache-hot lock. */
+	/*
+	 * Could avoid this lock when
+	 * num_online_cpus() <= NUM_INVALIDATE_TLB_VECTORS, but it is
+	 * probably not worth checking this for a cache-hot lock.
+	 */
 	spin_lock(&f->tlbstate_lock);
 
 	f->flush_mm = mm;
@@ -202,14 +204,14 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
 int __cpuinit init_smp_flush(void)
 {
 	int i;
+
 	for_each_cpu_mask(i, cpu_possible_map) {
 		spin_lock_init(&per_cpu(flush_state, i).tlbstate_lock);
 	}
 	return 0;
 }
-
 core_initcall(init_smp_flush);
-	
+
 void flush_tlb_current_task(void)
 {
 	struct mm_struct *mm = current->mm;
@@ -224,7 +226,6 @@ void flush_tlb_current_task(void)
 		flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
 	preempt_enable();
 }
-EXPORT_SYMBOL(flush_tlb_current_task);
 
 void flush_tlb_mm (struct mm_struct * mm)
 {
@@ -245,7 +246,6 @@ void flush_tlb_mm (struct mm_struct * mm)
 
 	preempt_enable();
 }
-EXPORT_SYMBOL(flush_tlb_mm);
 
 void flush_tlb_page(struct vm_area_struct * vma, unsigned long va)
 {
@@ -259,8 +259,8 @@ void flush_tlb_page(struct vm_area_struct * vma, unsigned long va)
 	if (current->active_mm == mm) {
 		if(current->mm)
 			__flush_tlb_one(va);
-		 else
-		 	leave_mm(smp_processor_id());
+		else
+			leave_mm(smp_processor_id());
 	}
 
 	if (!cpus_empty(cpu_mask))
@@ -268,7 +268,6 @@ void flush_tlb_page(struct vm_area_struct * vma, unsigned long va)
 
 	preempt_enable();
 }
-EXPORT_SYMBOL(flush_tlb_page);
 
 static void do_flush_tlb_all(void* info)
 {
@@ -325,11 +324,9 @@ void unlock_ipi_call_lock(void)
  * this function sends a 'generic call function' IPI to all other CPU
  * of the system defined in the mask.
  */
-
-static int
-__smp_call_function_mask(cpumask_t mask,
-			 void (*func)(void *), void *info,
-			 int wait)
+static int __smp_call_function_mask(cpumask_t mask,
+				    void (*func)(void *), void *info,
+				    int wait)
 {
 	struct call_data_struct data;
 	cpumask_t allbutself;
@@ -417,11 +414,10 @@ EXPORT_SYMBOL(smp_call_function_mask);
  */
 
 int smp_call_function_single (int cpu, void (*func) (void *info), void *info,
-	int nonatomic, int wait)
+			      int nonatomic, int wait)
 {
 	/* prevent preemption and reschedule on another processor */
-	int ret;
-	int me = get_cpu();
+	int ret, me = get_cpu();
 
 	/* Can deadlock when called with interrupts disabled */
 	WARN_ON(irqs_disabled());
@@ -471,9 +467,9 @@ static void stop_this_cpu(void *dummy)
 	 */
 	cpu_clear(smp_processor_id(), cpu_online_map);
 	disable_local_APIC();
-	for (;;) 
+	for (;;)
 		halt();
-} 
+}
 
 void smp_send_stop(void)
 {
-- 
cgit v1.2.3-59-g8ed1b


From a72368dd37f6ae333fbab03598e46a995d91decc Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:28 +0100
Subject: x86: remove dead code and exports

No users.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/process_64.c | 7 -------
 include/asm-x86/idle.h       | 1 -
 2 files changed, 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 2c9e59448f4c..98d85952f574 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -72,13 +72,6 @@ void idle_notifier_register(struct notifier_block *n)
 {
 	atomic_notifier_chain_register(&idle_notifier, n);
 }
-EXPORT_SYMBOL_GPL(idle_notifier_register);
-
-void idle_notifier_unregister(struct notifier_block *n)
-{
-	atomic_notifier_chain_unregister(&idle_notifier, n);
-}
-EXPORT_SYMBOL(idle_notifier_unregister);
 
 void enter_idle(void)
 {
diff --git a/include/asm-x86/idle.h b/include/asm-x86/idle.h
index 6bd47dcf2067..d240e5b30a45 100644
--- a/include/asm-x86/idle.h
+++ b/include/asm-x86/idle.h
@@ -6,7 +6,6 @@
 
 struct notifier_block;
 void idle_notifier_register(struct notifier_block *n);
-void idle_notifier_unregister(struct notifier_block *n);
 
 void enter_idle(void);
 void exit_idle(void);
-- 
cgit v1.2.3-59-g8ed1b


From 3abf024d2abb79614d8c4cb25a70d5596f77d0ad Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:28 +0100
Subject: x86: nuke a ton of unused exports

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/cpu/perfctr-watchdog.c | 1 -
 arch/x86/kernel/e820_64.c              | 1 -
 arch/x86/kernel/init_task.c            | 1 -
 arch/x86/kernel/pci-swiotlb_64.c       | 1 -
 arch/x86/kernel/smpboot_32.c           | 1 -
 arch/x86/kernel/smpboot_64.c           | 2 --
 arch/x86/kernel/stacktrace.c           | 1 -
 arch/x86/kernel/traps_64.c             | 8 --------
 arch/x86/mach-voyager/voyager_smp.c    | 1 -
 arch/x86/mm/numa_64.c                  | 1 -
 include/asm-x86/bug.h                  | 3 ---
 include/asm-x86/mmu_context_64.h       | 2 +-
 12 files changed, 1 insertion(+), 22 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c
index c02541e6e653..9b838324b818 100644
--- a/arch/x86/kernel/cpu/perfctr-watchdog.c
+++ b/arch/x86/kernel/cpu/perfctr-watchdog.c
@@ -167,7 +167,6 @@ void release_evntsel_nmi(unsigned int msr)
 	clear_bit(counter, evntsel_nmi_owner);
 }
 
-EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi);
 EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit);
 EXPORT_SYMBOL(reserve_perfctr_nmi);
 EXPORT_SYMBOL(release_perfctr_nmi);
diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index e510cfd5bb71..0128b0b0e5b5 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -34,7 +34,6 @@ struct e820map e820;
  * PFN of last memory page.
  */
 unsigned long end_pfn;
-EXPORT_SYMBOL(end_pfn);
 
 /*
  * end_pfn only includes RAM, while end_pfn_map includes all e820 entries.
diff --git a/arch/x86/kernel/init_task.c b/arch/x86/kernel/init_task.c
index 468c9c437842..5b3ce7934363 100644
--- a/arch/x86/kernel/init_task.c
+++ b/arch/x86/kernel/init_task.c
@@ -15,7 +15,6 @@ static struct files_struct init_files = INIT_FILES;
 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
 struct mm_struct init_mm = INIT_MM(init_mm);
-EXPORT_SYMBOL(init_mm);
 
 /*
  * Initial thread structure.
diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c
index 102866d729a5..82a0a674a003 100644
--- a/arch/x86/kernel/pci-swiotlb_64.c
+++ b/arch/x86/kernel/pci-swiotlb_64.c
@@ -10,7 +10,6 @@
 #include <asm/dma.h>
 
 int swiotlb __read_mostly;
-EXPORT_SYMBOL(swiotlb);
 
 const struct dma_mapping_ops swiotlb_dma_ops = {
 	.mapping_error = swiotlb_dma_mapping_error,
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 4ea80cbe52e5..753d7acf4dac 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -83,7 +83,6 @@ EXPORT_SYMBOL(cpu_online_map);
 
 cpumask_t cpu_callin_map;
 cpumask_t cpu_callout_map;
-EXPORT_SYMBOL(cpu_callout_map);
 cpumask_t cpu_possible_map;
 EXPORT_SYMBOL(cpu_possible_map);
 static cpumask_t smp_commenced_mask;
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index b36d32ff0b39..7552db9ee9ff 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -78,8 +78,6 @@ EXPORT_SYMBOL(cpu_online_map);
  */
 cpumask_t cpu_callin_map;
 cpumask_t cpu_callout_map;
-EXPORT_SYMBOL(cpu_callout_map);
-
 cpumask_t cpu_possible_map;
 EXPORT_SYMBOL(cpu_possible_map);
 
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 55771fd7e545..c571edd11878 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -69,7 +69,6 @@ void save_stack_trace(struct stack_trace *trace)
 	if (trace->nr_entries < trace->max_entries)
 		trace->entries[trace->nr_entries++] = ULONG_MAX;
 }
-EXPORT_SYMBOL(save_stack_trace);
 
 void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 {
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index cc68b92316cd..aa248d754533 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -461,14 +461,6 @@ int is_valid_bugaddr(unsigned long rip)
 	return ud2 == 0x0b0f;
 }
 
-#ifdef CONFIG_BUG
-void out_of_line_bug(void)
-{ 
-	BUG(); 
-} 
-EXPORT_SYMBOL(out_of_line_bug);
-#endif
-
 static raw_spinlock_t die_lock = __RAW_SPIN_LOCK_UNLOCKED;
 static int die_owner = -1;
 static unsigned int die_nest_count;
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index 73c435ce10fd..981def2b4e9b 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -227,7 +227,6 @@ static cpumask_t smp_commenced_mask = CPU_MASK_NONE;
 /* This is for the new dynamic CPU boot code */
 cpumask_t cpu_callin_map = CPU_MASK_NONE;
 cpumask_t cpu_callout_map = CPU_MASK_NONE;
-EXPORT_SYMBOL(cpu_callout_map);
 cpumask_t cpu_possible_map = CPU_MASK_NONE;
 EXPORT_SYMBOL(cpu_possible_map);
 
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 2d8fdc05f415..e7f3f4e9ec85 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -624,7 +624,6 @@ void __init init_cpu_to_node(void)
 
 EXPORT_SYMBOL(cpu_to_node);
 EXPORT_SYMBOL(node_to_cpumask);
-EXPORT_SYMBOL(memnode);
 EXPORT_SYMBOL(node_data);
 
 #ifdef CONFIG_DISCONTIGMEM
diff --git a/include/asm-x86/bug.h b/include/asm-x86/bug.h
index fd8bdc639c48..8d477a201392 100644
--- a/include/asm-x86/bug.h
+++ b/include/asm-x86/bug.h
@@ -33,9 +33,6 @@
 	} while(0)
 #endif
 
-void out_of_line_bug(void);
-#else /* CONFIG_BUG */
-static inline void out_of_line_bug(void) { }
 #endif /* !CONFIG_BUG */
 
 #include <asm-generic/bug.h>
diff --git a/include/asm-x86/mmu_context_64.h b/include/asm-x86/mmu_context_64.h
index 0cce83a78378..29f95c3acc28 100644
--- a/include/asm-x86/mmu_context_64.h
+++ b/include/asm-x86/mmu_context_64.h
@@ -49,7 +49,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 	else {
 		write_pda(mmu_state, TLBSTATE_OK);
 		if (read_pda(active_mm) != next)
-			out_of_line_bug();
+			BUG();
 		if (!cpu_test_and_set(cpu, next->cpu_vm_mask)) {
 			/* We were in lazy tlb mode and leave_mm disabled 
 			 * tlb flush IPI delivery. We must reload CR3
-- 
cgit v1.2.3-59-g8ed1b


From f0cd0af1b004f601f3cf96d9e001ffad9207f642 Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@kernel.org>
Date: Wed, 30 Jan 2008 13:30:29 +0100
Subject: x86: unexport __{read,write}_lock_failed

This patch removes the unused exports for __{read,write}_lock_failed.

Signed-off-by: Adrian Bunk <bunk@kernel.org>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/i386_ksyms_32.c  | 7 -------
 arch/x86/kernel/x8664_ksyms_64.c | 7 -------
 2 files changed, 14 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c
index 02112fcc0de7..061627806a2d 100644
--- a/arch/x86/kernel/i386_ksyms_32.c
+++ b/arch/x86/kernel/i386_ksyms_32.c
@@ -22,12 +22,5 @@ EXPORT_SYMBOL(__put_user_8);
 
 EXPORT_SYMBOL(strstr);
 
-#ifdef CONFIG_SMP
-extern void FASTCALL( __write_lock_failed(rwlock_t *rw));
-extern void FASTCALL( __read_lock_failed(rwlock_t *rw));
-EXPORT_SYMBOL(__write_lock_failed);
-EXPORT_SYMBOL(__read_lock_failed);
-#endif
-
 EXPORT_SYMBOL(csum_partial);
 EXPORT_SYMBOL(empty_zero_page);
diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
index 77c25b307635..e28b533674dd 100644
--- a/arch/x86/kernel/x8664_ksyms_64.c
+++ b/arch/x86/kernel/x8664_ksyms_64.c
@@ -34,13 +34,6 @@ EXPORT_SYMBOL(__copy_from_user_inatomic);
 EXPORT_SYMBOL(copy_page);
 EXPORT_SYMBOL(clear_page);
 
-#ifdef CONFIG_SMP
-extern void  __write_lock_failed(rwlock_t *rw);
-extern void  __read_lock_failed(rwlock_t *rw);
-EXPORT_SYMBOL(__write_lock_failed);
-EXPORT_SYMBOL(__read_lock_failed);
-#endif
-
 /* Export string functions. We normally rely on gcc builtin for most of these,
    but gcc sometimes decides not to inline them. */    
 #undef memcpy
-- 
cgit v1.2.3-59-g8ed1b


From f20ebee41882d28c965166e56c1331fbd28778bb Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:29 +0100
Subject: x86: move 8259 defines to i8259.h

Move the i8259 defines and remove the now io_ports.h

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/apic_32.c               |  2 --
 arch/x86/kernel/apm_32.c                |  2 --
 arch/x86/kernel/i8259_32.c              |  2 --
 arch/x86/kernel/io_apic_32.c            |  2 --
 arch/x86/kernel/time_32.c               |  1 -
 arch/x86/kernel/vmiclock_32.c           |  1 -
 include/asm-x86/i8259.h                 | 17 ++++++++++++++++-
 include/asm-x86/mach-default/io_ports.h | 25 -------------------------
 8 files changed, 16 insertions(+), 36 deletions(-)
 delete mode 100644 include/asm-x86/mach-default/io_ports.h

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 420c15842e44..56352c11a896 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -43,8 +43,6 @@
 #include <mach_apicdef.h>
 #include <mach_ipi.h>
 
-#include "io_ports.h"
-
 /*
  * Sanity check
  */
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index af045ca0f653..7496c2e4b6ae 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -235,8 +235,6 @@
 #include <asm/paravirt.h>
 #include <asm/reboot.h>
 
-#include "io_ports.h"
-
 #if defined(CONFIG_APM_DISPLAY_BLANK) && defined(CONFIG_VT)
 extern int (*console_blank_hook)(int);
 #endif
diff --git a/arch/x86/kernel/i8259_32.c b/arch/x86/kernel/i8259_32.c
index 5f3496d01984..3321ce669295 100644
--- a/arch/x86/kernel/i8259_32.c
+++ b/arch/x86/kernel/i8259_32.c
@@ -21,8 +21,6 @@
 #include <asm/arch_hooks.h>
 #include <asm/i8259.h>
 
-#include <io_ports.h>
-
 /*
  * This is the 'legacy' 8259A Programmable Interrupt Controller,
  * present in the majority of PC/AT boxes.
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index ab77f1905469..75bf8dc77650 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -48,8 +48,6 @@
 #include <mach_apic.h>
 #include <mach_apicdef.h>
 
-#include "io_ports.h"
-
 int (*ioapic_renumber_irq)(int ioapic, int irq);
 atomic_t irq_mis_count;
 
diff --git a/arch/x86/kernel/time_32.c b/arch/x86/kernel/time_32.c
index e9ead762abe8..2dcbb81b4cd3 100644
--- a/arch/x86/kernel/time_32.c
+++ b/arch/x86/kernel/time_32.c
@@ -37,7 +37,6 @@
 #include <asm/hpet.h>
 #include <asm/time.h>
 
-#include "io_ports.h"
 #include "do_timer.h"
 
 unsigned int cpu_khz;	/* Detected as we calibrate the TSC */
diff --git a/arch/x86/kernel/vmiclock_32.c b/arch/x86/kernel/vmiclock_32.c
index b1b5ab08b26e..57f9ef5a324c 100644
--- a/arch/x86/kernel/vmiclock_32.c
+++ b/arch/x86/kernel/vmiclock_32.c
@@ -35,7 +35,6 @@
 #include <asm/i8253.h>
 
 #include <irq_vectors.h>
-#include "io_ports.h"
 
 #define VMI_ONESHOT  (VMI_ALARM_IS_ONESHOT  | VMI_CYCLES_REAL | vmi_get_alarm_wiring())
 #define VMI_PERIODIC (VMI_ALARM_IS_PERIODIC | VMI_CYCLES_REAL | vmi_get_alarm_wiring())
diff --git a/include/asm-x86/i8259.h b/include/asm-x86/i8259.h
index 29d8f9a6b3fc..cabcc6cf3923 100644
--- a/include/asm-x86/i8259.h
+++ b/include/asm-x86/i8259.h
@@ -3,10 +3,25 @@
 
 extern unsigned int cached_irq_mask;
 
-#define __byte(x,y) 		(((unsigned char *) &(y))[x])
+#define __byte(x,y)		(((unsigned char *) &(y))[x])
 #define cached_master_mask	(__byte(0, cached_irq_mask))
 #define cached_slave_mask	(__byte(1, cached_irq_mask))
 
+/* i8259A PIC registers */
+#define PIC_MASTER_CMD		0x20
+#define PIC_MASTER_IMR		0x21
+#define PIC_MASTER_ISR		PIC_MASTER_CMD
+#define PIC_MASTER_POLL		PIC_MASTER_ISR
+#define PIC_MASTER_OCW3		PIC_MASTER_ISR
+#define PIC_SLAVE_CMD		0xa0
+#define PIC_SLAVE_IMR		0xa1
+
+/* i8259A PIC related value */
+#define PIC_CASCADE_IR		2
+#define MASTER_ICW4_DEFAULT	0x01
+#define SLAVE_ICW4_DEFAULT	0x01
+#define PIC_ICW4_AEOI		2
+
 extern spinlock_t i8259A_lock;
 
 extern void init_8259A(int auto_eoi);
diff --git a/include/asm-x86/mach-default/io_ports.h b/include/asm-x86/mach-default/io_ports.h
deleted file mode 100644
index 48540ba97166..000000000000
--- a/include/asm-x86/mach-default/io_ports.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- *  arch/i386/mach-generic/io_ports.h
- *
- *  Machine specific IO port address definition for generic.
- *  Written by Osamu Tomita <tomita@cinet.co.jp>
- */
-#ifndef _MACH_IO_PORTS_H
-#define _MACH_IO_PORTS_H
-
-/* i8259A PIC registers */
-#define PIC_MASTER_CMD		0x20
-#define PIC_MASTER_IMR		0x21
-#define PIC_MASTER_ISR		PIC_MASTER_CMD
-#define PIC_MASTER_POLL		PIC_MASTER_ISR
-#define PIC_MASTER_OCW3		PIC_MASTER_ISR
-#define PIC_SLAVE_CMD		0xa0
-#define PIC_SLAVE_IMR		0xa1
-
-/* i8259A PIC related value */
-#define PIC_CASCADE_IR		2
-#define MASTER_ICW4_DEFAULT	0x01
-#define SLAVE_ICW4_DEFAULT	0x01
-#define PIC_ICW4_AEOI		2
-
-#endif /* !_MACH_IO_PORTS_H */
-- 
cgit v1.2.3-59-g8ed1b


From 2b8e05b5677d2b4f3cd218ee90a7332715cb262f Mon Sep 17 00:00:00 2001
From: Paul Jimenez <pj@place.org>
Date: Wed, 30 Jan 2008 13:30:29 +0100
Subject: x86: make i8259_64 more _32-like

Howdy! Here's a simple janitorish patch for you:

This patch mainly hinges around two includes and their ramifications:

#include <i8259.h>	which provides cached_{slave,master}_mask
#include <io_ports.h>	which provides PIC_{MASTER,SLAVE}_{IMR,CMD}

Adding these two includes and using those half dozen or so definitions
removed 140+ lines of diffs between i8259_32.c and i8259_64.c, thus
making it easier for the real substantitive differences between them to
show up, and hopefully therefore making it easier to eventually merge
the two.  All the warnings that checkpatch.pl throws (missing spaces
after commas and >80 character lines) exist intentionally to match
i8259_32.c.

Signed-off-by: Paul Jimenez <pj@place.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/i8259_64.c | 154 ++++++++++++++++++++++++---------------------
 1 file changed, 81 insertions(+), 73 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/i8259_64.c b/arch/x86/kernel/i8259_64.c
index ba6d57286f56..be82b1217691 100644
--- a/arch/x86/kernel/i8259_64.c
+++ b/arch/x86/kernel/i8259_64.c
@@ -21,6 +21,7 @@
 #include <asm/delay.h>
 #include <asm/desc.h>
 #include <asm/apic.h>
+#include <asm/i8259.h>
 
 /*
  * Common place to define all x86 IRQ vectors
@@ -48,7 +49,7 @@
  */
 
 /*
- * The IO-APIC gives us many more interrupt sources. Most of these 
+ * The IO-APIC gives us many more interrupt sources. Most of these
  * are unused but an SMP system is supposed to have enough memory ...
  * sometimes (mostly wrt. hw bugs) we get corrupted vectors all
  * across the spectrum, so we really want to be prepared to get all
@@ -114,11 +115,7 @@ static struct irq_chip i8259A_chip = {
 /*
  * This contains the irq mask for both 8259A irq controllers,
  */
-static unsigned int cached_irq_mask = 0xffff;
-
-#define __byte(x,y) 	(((unsigned char *)&(y))[x])
-#define cached_21	(__byte(0,cached_irq_mask))
-#define cached_A1	(__byte(1,cached_irq_mask))
+unsigned int cached_irq_mask = 0xffff;
 
 /*
  * Not all IRQs can be routed through the IO-APIC, eg. on certain (older)
@@ -139,9 +136,9 @@ void disable_8259A_irq(unsigned int irq)
 	spin_lock_irqsave(&i8259A_lock, flags);
 	cached_irq_mask |= mask;
 	if (irq & 8)
-		outb(cached_A1,0xA1);
+		outb(cached_slave_mask, PIC_SLAVE_IMR);
 	else
-		outb(cached_21,0x21);
+		outb(cached_master_mask, PIC_MASTER_IMR);
 	spin_unlock_irqrestore(&i8259A_lock, flags);
 }
 
@@ -153,9 +150,9 @@ void enable_8259A_irq(unsigned int irq)
 	spin_lock_irqsave(&i8259A_lock, flags);
 	cached_irq_mask &= mask;
 	if (irq & 8)
-		outb(cached_A1,0xA1);
+		outb(cached_slave_mask, PIC_SLAVE_IMR);
 	else
-		outb(cached_21,0x21);
+		outb(cached_master_mask, PIC_MASTER_IMR);
 	spin_unlock_irqrestore(&i8259A_lock, flags);
 }
 
@@ -167,9 +164,9 @@ int i8259A_irq_pending(unsigned int irq)
 
 	spin_lock_irqsave(&i8259A_lock, flags);
 	if (irq < 8)
-		ret = inb(0x20) & mask;
+		ret = inb(PIC_MASTER_CMD) & mask;
 	else
-		ret = inb(0xA0) & (mask >> 8);
+		ret = inb(PIC_SLAVE_CMD) & (mask >> 8);
 	spin_unlock_irqrestore(&i8259A_lock, flags);
 
 	return ret;
@@ -196,14 +193,14 @@ static inline int i8259A_irq_real(unsigned int irq)
 	int irqmask = 1<<irq;
 
 	if (irq < 8) {
-		outb(0x0B,0x20);		/* ISR register */
-		value = inb(0x20) & irqmask;
-		outb(0x0A,0x20);		/* back to the IRR register */
+		outb(0x0B,PIC_MASTER_CMD);	/* ISR register */
+		value = inb(PIC_MASTER_CMD) & irqmask;
+		outb(0x0A,PIC_MASTER_CMD);	/* back to the IRR register */
 		return value;
 	}
-	outb(0x0B,0xA0);		/* ISR register */
-	value = inb(0xA0) & (irqmask >> 8);
-	outb(0x0A,0xA0);		/* back to the IRR register */
+	outb(0x0B,PIC_SLAVE_CMD);	/* ISR register */
+	value = inb(PIC_SLAVE_CMD) & (irqmask >> 8);
+	outb(0x0A,PIC_SLAVE_CMD);	/* back to the IRR register */
 	return value;
 }
 
@@ -240,14 +237,17 @@ static void mask_and_ack_8259A(unsigned int irq)
 
 handle_real_irq:
 	if (irq & 8) {
-		inb(0xA1);		/* DUMMY - (do we need this?) */
-		outb(cached_A1,0xA1);
-		outb(0x60+(irq&7),0xA0);/* 'Specific EOI' to slave */
-		outb(0x62,0x20);	/* 'Specific EOI' to master-IRQ2 */
+		inb(PIC_SLAVE_IMR);	/* DUMMY - (do we need this?) */
+		outb(cached_slave_mask, PIC_SLAVE_IMR);
+		/* 'Specific EOI' to slave */
+		outb(0x60+(irq&7),PIC_SLAVE_CMD);
+		 /* 'Specific EOI' to master-IRQ2 */
+		outb(0x60+PIC_CASCADE_IR,PIC_MASTER_CMD);
 	} else {
-		inb(0x21);		/* DUMMY - (do we need this?) */
-		outb(cached_21,0x21);
-		outb(0x60+irq,0x20);	/* 'Specific EOI' to master */
+		inb(PIC_MASTER_IMR);	/* DUMMY - (do we need this?) */
+		outb(cached_master_mask, PIC_MASTER_IMR);
+		/* 'Specific EOI' to master */
+		outb(0x60+irq,PIC_MASTER_CMD);
 	}
 	spin_unlock_irqrestore(&i8259A_lock, flags);
 	return;
@@ -270,7 +270,8 @@ spurious_8259A_irq:
 		 * lets ACK and report it. [once per IRQ]
 		 */
 		if (!(spurious_irq_mask & irqmask)) {
-			printk(KERN_DEBUG "spurious 8259A interrupt: IRQ%d.\n", irq);
+			printk(KERN_DEBUG
+			       "spurious 8259A interrupt: IRQ%d.\n", irq);
 			spurious_irq_mask |= irqmask;
 		}
 		atomic_inc(&irq_err_count);
@@ -283,51 +284,6 @@ spurious_8259A_irq:
 	}
 }
 
-void init_8259A(int auto_eoi)
-{
-	unsigned long flags;
-
-	i8259A_auto_eoi = auto_eoi;
-
-	spin_lock_irqsave(&i8259A_lock, flags);
-
-	outb(0xff, 0x21);	/* mask all of 8259A-1 */
-	outb(0xff, 0xA1);	/* mask all of 8259A-2 */
-
-	/*
-	 * outb_p - this has to work on a wide range of PC hardware.
-	 */
-	outb_p(0x11, 0x20);	/* ICW1: select 8259A-1 init */
-	outb_p(IRQ0_VECTOR, 0x21);	/* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 */
-	outb_p(0x04, 0x21);	/* 8259A-1 (the master) has a slave on IR2 */
-	if (auto_eoi)
-		outb_p(0x03, 0x21);	/* master does Auto EOI */
-	else
-		outb_p(0x01, 0x21);	/* master expects normal EOI */
-
-	outb_p(0x11, 0xA0);	/* ICW1: select 8259A-2 init */
-	outb_p(IRQ8_VECTOR, 0xA1);	/* ICW2: 8259A-2 IR0-7 mapped to 0x38-0x3f */
-	outb_p(0x02, 0xA1);	/* 8259A-2 is a slave on master's IR2 */
-	outb_p(0x01, 0xA1);	/* (slave's support for AEOI in flat mode
-				    is to be investigated) */
-
-	if (auto_eoi)
-		/*
-		 * in AEOI mode we just have to mask the interrupt
-		 * when acking.
-		 */
-		i8259A_chip.mask_ack = disable_8259A_irq;
-	else
-		i8259A_chip.mask_ack = mask_and_ack_8259A;
-
-	udelay(100);		/* wait for 8259A to initialize */
-
-	outb(cached_21, 0x21);	/* restore master IRQ mask */
-	outb(cached_A1, 0xA1);	/* restore slave IRQ mask */
-
-	spin_unlock_irqrestore(&i8259A_lock, flags);
-}
-
 static char irq_trigger[2];
 /**
  * ELCR registers (0x4d0, 0x4d1) control edge/level of IRQ
@@ -364,8 +320,8 @@ static int i8259A_shutdown(struct sys_device *dev)
 	 * the kernel initialization code can get it
 	 * out of.
 	 */
-	outb(0xff, 0x21);	/* mask all of 8259A-1 */
-	outb(0xff, 0xA1);	/* mask all of 8259A-1 */
+	outb(0xff, PIC_MASTER_IMR);	/* mask all of 8259A-1 */
+	outb(0xff, PIC_SLAVE_IMR);	/* mask all of 8259A-1 */
 	return 0;
 }
 
@@ -391,6 +347,58 @@ static int __init i8259A_init_sysfs(void)
 
 device_initcall(i8259A_init_sysfs);
 
+void init_8259A(int auto_eoi)
+{
+	unsigned long flags;
+
+	i8259A_auto_eoi = auto_eoi;
+
+	spin_lock_irqsave(&i8259A_lock, flags);
+
+	outb(0xff, PIC_MASTER_IMR);	/* mask all of 8259A-1 */
+	outb(0xff, PIC_SLAVE_IMR);	/* mask all of 8259A-2 */
+
+	/*
+	 * outb_p - this has to work on a wide range of PC hardware.
+	 */
+	outb_p(0x11, PIC_MASTER_CMD);	/* ICW1: select 8259A-1 init */
+	/* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 */
+	outb_p(IRQ0_VECTOR, PIC_MASTER_IMR);
+	/* 8259A-1 (the master) has a slave on IR2 */
+	outb_p(0x04, PIC_MASTER_IMR);
+	if (auto_eoi)	/* master does Auto EOI */
+		outb_p(MASTER_ICW4_DEFAULT | PIC_ICW4_AEOI, PIC_MASTER_IMR);
+	else		/* master expects normal EOI */
+		outb_p(MASTER_ICW4_DEFAULT, PIC_MASTER_IMR);
+
+	outb_p(0x11, PIC_SLAVE_CMD);	/* ICW1: select 8259A-2 init */
+	/* ICW2: 8259A-2 IR0-7 mapped to 0x38-0x3f */
+	outb_p(IRQ8_VECTOR, PIC_SLAVE_IMR);
+	/* 8259A-2 is a slave on master's IR2 */
+	outb_p(PIC_CASCADE_IR, PIC_SLAVE_IMR);
+	/* (slave's support for AEOI in flat mode is to be investigated) */
+	outb_p(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR);
+
+	if (auto_eoi)
+		/*
+		 * In AEOI mode we just have to mask the interrupt
+		 * when acking.
+		 */
+		i8259A_chip.mask_ack = disable_8259A_irq;
+	else
+		i8259A_chip.mask_ack = mask_and_ack_8259A;
+
+	udelay(100);		/* wait for 8259A to initialize */
+
+	outb(cached_master_mask, PIC_MASTER_IMR); /* restore master IRQ mask */
+	outb(cached_slave_mask, PIC_SLAVE_IMR);	  /* restore slave IRQ mask */
+
+	spin_unlock_irqrestore(&i8259A_lock, flags);
+}
+
+
+
+
 /*
  * IRQ2 is cascade interrupt to second interrupt controller
  */
-- 
cgit v1.2.3-59-g8ed1b


From 013d23e1567c4cebee0a2db5c8fa97b91b34ac2a Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@kernel.org>
Date: Wed, 30 Jan 2008 13:30:30 +0100
Subject: x86 e820_64.c: make 2 functions static

This patch makes the following needlessly global functions static:
- e820_print_map()
- early_panic()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/e820_64.c | 4 ++--
 include/asm-x86/e820_64.h | 1 -
 2 files changed, 2 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index 0128b0b0e5b5..11a3d65db0c1 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -373,7 +373,7 @@ unsigned long __init e820_hole_size(unsigned long start, unsigned long end)
 	return end - start - (ram << PAGE_SHIFT);
 }
 
-void __init e820_print_map(char *who)
+static void __init e820_print_map(char *who)
 {
 	int i;
 
@@ -633,7 +633,7 @@ static int __init copy_e820_map(struct e820entry *biosmap, int nr_map)
 	return 0;
 }
 
-void early_panic(char *msg)
+static void early_panic(char *msg)
 {
 	early_printk(msg);
 	panic(msg);
diff --git a/include/asm-x86/e820_64.h b/include/asm-x86/e820_64.h
index 0bd4787a5d57..e535e6044e21 100644
--- a/include/asm-x86/e820_64.h
+++ b/include/asm-x86/e820_64.h
@@ -21,7 +21,6 @@ extern void contig_e820_setup(void);
 extern unsigned long e820_end_of_ram(void);
 extern void e820_reserve_resources(void);
 extern void e820_mark_nosave_regions(void);
-extern void e820_print_map(char *who);
 extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type);
 extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type);
 extern unsigned long e820_hole_size(unsigned long start, unsigned long end);
-- 
cgit v1.2.3-59-g8ed1b


From 52e3d90def24008c9b3435a1032d9a7f05766bce Mon Sep 17 00:00:00 2001
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Date: Wed, 30 Jan 2008 13:30:30 +0100
Subject: x86: io_apic_64.c: remove unused config check

CONFIG_IRQBALANCE doesn't exist on x86_64.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/io_apic_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index c6de7854ac63..3e471d0fb150 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -1439,7 +1439,7 @@ static void ack_apic_level(unsigned int irq)
 	int do_unmask_irq = 0;
 
 	irq_complete_move(irq);
-#if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE)
+#ifdef CONFIG_GENERIC_PENDING_IRQ
 	/* If we are moving the irq we need to mask it */
 	if (unlikely(irq_desc[irq].status & IRQ_MOVE_PENDING)) {
 		do_unmask_irq = 1;
-- 
cgit v1.2.3-59-g8ed1b


From 231fd906c5e71219bbc32618a8ed8b439d5dde98 Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@kernel.org>
Date: Wed, 30 Jan 2008 13:30:30 +0100
Subject: x86 mce_64.c: make struct mcelog static

This patch makes the needlessly global struct mcelog static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/cpu/mcheck/mce_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index 242e8668dbeb..8ef6a6bfd112 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -63,7 +63,7 @@ static DECLARE_WAIT_QUEUE_HEAD(mce_wait);
  * separate MCEs from kernel messages to avoid bogus bug reports.
  */
 
-struct mce_log mcelog = {
+static struct mce_log mcelog = {
 	MCE_LOG_SIGNATURE,
 	MCE_LOG_LEN,
 };
-- 
cgit v1.2.3-59-g8ed1b


From 867ab545668385b903f9379019000383675c49b3 Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@kernel.org>
Date: Wed, 30 Jan 2008 13:30:31 +0100
Subject: x86: nmi_64.c: make code static

This patch makes the following needlessly global code static:
- panic_on_timeout
- setup_nmi_watchdog()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/nmi_64.c | 4 ++--
 include/asm-x86/nmi_64.h | 2 --
 2 files changed, 2 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/nmi_64.c b/arch/x86/kernel/nmi_64.c
index c3d1476b6a11..53faef632fc6 100644
--- a/arch/x86/kernel/nmi_64.c
+++ b/arch/x86/kernel/nmi_64.c
@@ -39,7 +39,7 @@ static cpumask_t backtrace_mask = CPU_MASK_NONE;
  *  0: the lapic NMI watchdog is disabled, but can be enabled
  */
 atomic_t nmi_active = ATOMIC_INIT(0);		/* oprofile uses this */
-int panic_on_timeout;
+static int panic_on_timeout;
 
 unsigned int nmi_watchdog = NMI_DEFAULT;
 static unsigned int nmi_hz = HZ;
@@ -136,7 +136,7 @@ int __init check_nmi_watchdog (void)
 	return 0;
 }
 
-int __init setup_nmi_watchdog(char *str)
+static int __init setup_nmi_watchdog(char *str)
 {
 	int nmi;
 
diff --git a/include/asm-x86/nmi_64.h b/include/asm-x86/nmi_64.h
index 92f36fb1dc62..2eeb74e5f3ff 100644
--- a/include/asm-x86/nmi_64.h
+++ b/include/asm-x86/nmi_64.h
@@ -38,7 +38,6 @@ extern void die_nmi(char *str, struct pt_regs *regs, int do_panic);
 
 #define get_nmi_reason() inb(0x61)
 
-extern int panic_on_timeout;
 extern int unknown_nmi_panic;
 extern int nmi_watchdog_enabled;
 
@@ -57,7 +56,6 @@ extern void enable_timer_nmi_watchdog(void);
 extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason);
 
 extern void nmi_watchdog_default(void);
-extern int setup_nmi_watchdog(char *);
 
 extern atomic_t nmi_active;
 extern unsigned int nmi_watchdog;
-- 
cgit v1.2.3-59-g8ed1b


From ed65260bb814a5c600a4e883f6bda73e287f5dec Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@kernel.org>
Date: Wed, 30 Jan 2008 13:30:31 +0100
Subject: x86: pci-calgary_64.c: make a variable static

"debugging" is a horrible name for a global variable - thankfully it can
become static.

Also put it out of __read_mostly so that gcc no longer has to emit it
at all.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/pci-calgary_64.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 6bf1f716909d..21d7e0f8610c 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -183,7 +183,7 @@ static struct calgary_bus_info bus_info[MAX_PHB_BUS_NUM] = { { NULL, 0, 0 }, };
 
 /* enable this to stress test the chip's TCE cache */
 #ifdef CONFIG_IOMMU_DEBUG
-int debugging __read_mostly = 1;
+static int debugging = 1;
 
 static inline unsigned long verify_bit_range(unsigned long* bitmap,
 	int expected, unsigned long start, unsigned long end)
@@ -202,7 +202,7 @@ static inline unsigned long verify_bit_range(unsigned long* bitmap,
 	return ~0UL;
 }
 #else /* debugging is disabled */
-int debugging __read_mostly = 0;
+static int debugging;
 
 static inline unsigned long verify_bit_range(unsigned long* bitmap,
 	int expected, unsigned long start, unsigned long end)
-- 
cgit v1.2.3-59-g8ed1b


From 3e7593966be6f6d29a15138c0c96b961d437f2f5 Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@kernel.org>
Date: Wed, 30 Jan 2008 13:30:31 +0100
Subject: x86: pci-dma_64.c: cleanups

This patch contains the following cleanups:
- make the needlessly global iommu_setup() static
- remove the unused EXPORT_SYMBOL(iommu_merge)

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/pci-dma_64.c | 3 +--
 include/asm-x86/pci_64.h     | 1 -
 2 files changed, 1 insertion(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/pci-dma_64.c b/arch/x86/kernel/pci-dma_64.c
index 5552d23d23c2..a82473d192a3 100644
--- a/arch/x86/kernel/pci-dma_64.c
+++ b/arch/x86/kernel/pci-dma_64.c
@@ -13,7 +13,6 @@
 #include <asm/calgary.h>
 
 int iommu_merge __read_mostly = 0;
-EXPORT_SYMBOL(iommu_merge);
 
 dma_addr_t bad_dma_address __read_mostly;
 EXPORT_SYMBOL(bad_dma_address);
@@ -230,7 +229,7 @@ EXPORT_SYMBOL(dma_set_mask);
  * See <Documentation/x86_64/boot-options.txt> for the iommu kernel parameter
  * documentation.
  */
-__init int iommu_setup(char *p)
+static __init int iommu_setup(char *p)
 {
 	iommu_merge = 1;
 
diff --git a/include/asm-x86/pci_64.h b/include/asm-x86/pci_64.h
index ef54226a9325..374690314539 100644
--- a/include/asm-x86/pci_64.h
+++ b/include/asm-x86/pci_64.h
@@ -26,7 +26,6 @@ extern int (*pci_config_write)(int seg, int bus, int dev, int fn, int reg, int l
 
 
 extern void pci_iommu_alloc(void);
-extern int iommu_setup(char *opt);
 
 /* The PCI address space does equal the physical memory
  * address space.  The networking and block device layers use
-- 
cgit v1.2.3-59-g8ed1b


From 2d2ee8de5f6d26ef2942e0b449aa68d9236d5777 Mon Sep 17 00:00:00 2001
From: Paul Jimenez <pj@place.org>
Date: Wed, 30 Jan 2008 13:30:31 +0100
Subject: x86: mtrr use type bool [RESEND AGAIN]

This is a janitorish patch to 1) remove private TRUE/FALSE #def's in
favor of using the standard enum from linux/stddef.h and 2) switch the
variables holding those values to type 'bool' (from linux/types.h)
since it both seems more appropriate and allows for potentially better
optimization.

As a truly minor aside, I removed a couple of comments documenting
a 'do_safe' parameter that seems to no longer exist.

Signed-off-by: Paul Jimenez <pj@place.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/mtrr/amd.c     |  2 --
 arch/x86/kernel/cpu/mtrr/generic.c | 16 +++++++---------
 arch/x86/kernel/cpu/mtrr/if.c      | 15 ++++++++-------
 arch/x86/kernel/cpu/mtrr/main.c    |  8 +++++---
 arch/x86/kernel/cpu/mtrr/mtrr.h    |  6 ++----
 include/asm-x86/mtrr.h             |  8 ++++----
 6 files changed, 26 insertions(+), 29 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mtrr/amd.c b/arch/x86/kernel/cpu/mtrr/amd.c
index 0949cdbf848a..ee2331b0e58f 100644
--- a/arch/x86/kernel/cpu/mtrr/amd.c
+++ b/arch/x86/kernel/cpu/mtrr/amd.c
@@ -53,8 +53,6 @@ static void amd_set_mtrr(unsigned int reg, unsigned long base,
     <base> The base address of the region.
     <size> The size of the region. If this is 0 the region is disabled.
     <type> The type of the region.
-    <do_safe> If TRUE, do the change safely. If FALSE, safety measures should
-    be done externally.
     [RETURNS] Nothing.
 */
 {
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 992f08dfbb6c..1c331c373a43 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -188,7 +188,7 @@ static inline void k8_enable_fixed_iorrs(void)
  * \param changed pointer which indicates whether the MTRR needed to be changed
  * \param msrwords pointer to the MSR values which the MSR should have
  */
-static void set_fixed_range(int msr, int * changed, unsigned int * msrwords)
+static void set_fixed_range(int msr, bool *changed, unsigned int *msrwords)
 {
 	unsigned lo, hi;
 
@@ -200,7 +200,7 @@ static void set_fixed_range(int msr, int * changed, unsigned int * msrwords)
 		    ((msrwords[0] | msrwords[1]) & K8_MTRR_RDMEM_WRMEM_MASK))
 			k8_enable_fixed_iorrs();
 		mtrr_wrmsr(msr, msrwords[0], msrwords[1]);
-		*changed = TRUE;
+		*changed = true;
 	}
 }
 
@@ -260,7 +260,7 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base,
 static int set_fixed_ranges(mtrr_type * frs)
 {
 	unsigned long long *saved = (unsigned long long *) frs;
-	int changed = FALSE;
+	bool changed = false;
 	int block=-1, range;
 
 	while (fixed_range_blocks[++block].ranges)
@@ -273,17 +273,17 @@ static int set_fixed_ranges(mtrr_type * frs)
 
 /*  Set the MSR pair relating to a var range. Returns TRUE if
     changes are made  */
-static int set_mtrr_var_ranges(unsigned int index, struct mtrr_var_range *vr)
+static bool set_mtrr_var_ranges(unsigned int index, struct mtrr_var_range *vr)
 {
 	unsigned int lo, hi;
-	int changed = FALSE;
+	bool changed = false;
 
 	rdmsr(MTRRphysBase_MSR(index), lo, hi);
 	if ((vr->base_lo & 0xfffff0ffUL) != (lo & 0xfffff0ffUL)
 	    || (vr->base_hi & (size_and_mask >> (32 - PAGE_SHIFT))) !=
 		(hi & (size_and_mask >> (32 - PAGE_SHIFT)))) {
 		mtrr_wrmsr(MTRRphysBase_MSR(index), vr->base_lo, vr->base_hi);
-		changed = TRUE;
+		changed = true;
 	}
 
 	rdmsr(MTRRphysMask_MSR(index), lo, hi);
@@ -292,7 +292,7 @@ static int set_mtrr_var_ranges(unsigned int index, struct mtrr_var_range *vr)
 	    || (vr->mask_hi & (size_and_mask >> (32 - PAGE_SHIFT))) !=
 		(hi & (size_and_mask >> (32 - PAGE_SHIFT)))) {
 		mtrr_wrmsr(MTRRphysMask_MSR(index), vr->mask_lo, vr->mask_hi);
-		changed = TRUE;
+		changed = true;
 	}
 	return changed;
 }
@@ -417,8 +417,6 @@ static void generic_set_mtrr(unsigned int reg, unsigned long base,
     <base> The base address of the region.
     <size> The size of the region. If this is 0 the region is disabled.
     <type> The type of the region.
-    <do_safe> If TRUE, do the change safely. If FALSE, safety measures should
-    be done externally.
     [RETURNS] Nothing.
 */
 {
diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c
index c7d8f1756745..14535686c099 100644
--- a/arch/x86/kernel/cpu/mtrr/if.c
+++ b/arch/x86/kernel/cpu/mtrr/if.c
@@ -37,7 +37,7 @@ const char *mtrr_attrib_to_str(int x)
 
 static int
 mtrr_file_add(unsigned long base, unsigned long size,
-	      unsigned int type, char increment, struct file *file, int page)
+	      unsigned int type, bool increment, struct file *file, int page)
 {
 	int reg, max;
 	unsigned int *fcount = FILE_FCOUNT(file); 
@@ -55,7 +55,7 @@ mtrr_file_add(unsigned long base, unsigned long size,
 		base >>= PAGE_SHIFT;
 		size >>= PAGE_SHIFT;
 	}
-	reg = mtrr_add_page(base, size, type, 1);
+	reg = mtrr_add_page(base, size, type, true);
 	if (reg >= 0)
 		++fcount[reg];
 	return reg;
@@ -141,7 +141,7 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
 		size >>= PAGE_SHIFT;
 		err =
 		    mtrr_add_page((unsigned long) base, (unsigned long) size, i,
-				  1);
+				  true);
 		if (err < 0)
 			return err;
 		return len;
@@ -217,7 +217,7 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
 		err =
-		    mtrr_file_add(sentry.base, sentry.size, sentry.type, 1,
+		    mtrr_file_add(sentry.base, sentry.size, sentry.type, true,
 				  file, 0);
 		break;
 	case MTRRIOC_SET_ENTRY:
@@ -226,7 +226,7 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
 #endif
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		err = mtrr_add(sentry.base, sentry.size, sentry.type, 0);
+		err = mtrr_add(sentry.base, sentry.size, sentry.type, false);
 		break;
 	case MTRRIOC_DEL_ENTRY:
 #ifdef CONFIG_COMPAT
@@ -270,7 +270,7 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
 		err =
-		    mtrr_file_add(sentry.base, sentry.size, sentry.type, 1,
+		    mtrr_file_add(sentry.base, sentry.size, sentry.type, true,
 				  file, 1);
 		break;
 	case MTRRIOC_SET_PAGE_ENTRY:
@@ -279,7 +279,8 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
 #endif
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		err = mtrr_add_page(sentry.base, sentry.size, sentry.type, 0);
+		err =
+		    mtrr_add_page(sentry.base, sentry.size, sentry.type, false);
 		break;
 	case MTRRIOC_DEL_PAGE_ENTRY:
 #ifdef CONFIG_COMPAT
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index beb45c9c0835..60af5ed2b5c0 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -311,7 +311,7 @@ static void set_mtrr(unsigned int reg, unsigned long base,
  */
 
 int mtrr_add_page(unsigned long base, unsigned long size, 
-		  unsigned int type, char increment)
+		  unsigned int type, bool increment)
 {
 	int i, replace, error;
 	mtrr_type ltype;
@@ -394,7 +394,9 @@ int mtrr_add_page(unsigned long base, unsigned long size,
 		if (likely(replace < 0))
 			usage_table[i] = 1;
 		else {
-			usage_table[i] = usage_table[replace] + !!increment;
+			usage_table[i] = usage_table[replace];
+			if (increment)
+				usage_table[i]++;
 			if (unlikely(replace != i)) {
 				set_mtrr(replace, 0, 0, 0);
 				usage_table[replace] = 0;
@@ -460,7 +462,7 @@ static int mtrr_check(unsigned long base, unsigned long size)
 
 int
 mtrr_add(unsigned long base, unsigned long size, unsigned int type,
-	 char increment)
+	 bool increment)
 {
 	if (mtrr_check(base, size))
 		return -EINVAL;
diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
index 289dfe6030e3..54347e9a95c0 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.h
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
@@ -2,10 +2,8 @@
  * local mtrr defines.
  */
 
-#ifndef TRUE
-#define TRUE  1
-#define FALSE 0
-#endif
+#include <linux/types.h>
+#include <linux/stddef.h>
 
 #define MTRRcap_MSR     0x0fe
 #define MTRRdefType_MSR 0x2ff
diff --git a/include/asm-x86/mtrr.h b/include/asm-x86/mtrr.h
index e8320e4e6ca2..262670e42078 100644
--- a/include/asm-x86/mtrr.h
+++ b/include/asm-x86/mtrr.h
@@ -89,9 +89,9 @@ struct mtrr_gentry
 extern void mtrr_save_fixed_ranges(void *);
 extern void mtrr_save_state(void);
 extern int mtrr_add (unsigned long base, unsigned long size,
-		     unsigned int type, char increment);
+		     unsigned int type, bool increment);
 extern int mtrr_add_page (unsigned long base, unsigned long size,
-		     unsigned int type, char increment);
+		     unsigned int type, bool increment);
 extern int mtrr_del (int reg, unsigned long base, unsigned long size);
 extern int mtrr_del_page (int reg, unsigned long base, unsigned long size);
 extern void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi);
@@ -101,12 +101,12 @@ extern void mtrr_bp_init(void);
 #define mtrr_save_fixed_ranges(arg) do {} while (0)
 #define mtrr_save_state() do {} while (0)
 static __inline__ int mtrr_add (unsigned long base, unsigned long size,
-				unsigned int type, char increment)
+				unsigned int type, bool increment)
 {
     return -ENODEV;
 }
 static __inline__ int mtrr_add_page (unsigned long base, unsigned long size,
-				unsigned int type, char increment)
+				unsigned int type, bool increment)
 {
     return -ENODEV;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 201c19948b879ed95ac986bc994af29d7cf4859f Mon Sep 17 00:00:00 2001
From: Lucas Woods <woodzy@gmail.com>
Date: Wed, 30 Jan 2008 13:30:32 +0100
Subject: x86: remove duplicate includes

Signed-off-by: Lucas Woods <woodzy@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/hpet.c           | 1 -
 arch/x86/kernel/pci-calgary_64.c | 1 -
 arch/x86/vdso/vclock_gettime.c   | 1 -
 3 files changed, 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index a3c56c9b8a02..5c1702789be4 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -6,7 +6,6 @@
 #include <linux/init.h>
 #include <linux/sysdev.h>
 #include <linux/pm.h>
-#include <linux/delay.h>
 
 #include <asm/fixmap.h>
 #include <asm/hpet.h>
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 21d7e0f8610c..21f34db2c03c 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -30,7 +30,6 @@
 #include <linux/spinlock.h>
 #include <linux/string.h>
 #include <linux/dma-mapping.h>
-#include <linux/init.h>
 #include <linux/bitops.h>
 #include <linux/pci_ids.h>
 #include <linux/pci.h>
diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c
index 5b54cdfb2b07..23476c2ebfc4 100644
--- a/arch/x86/vdso/vclock_gettime.c
+++ b/arch/x86/vdso/vclock_gettime.c
@@ -19,7 +19,6 @@
 #include <asm/hpet.h>
 #include <asm/unistd.h>
 #include <asm/io.h>
-#include <asm/vgtod.h>
 #include "vextern.h"
 
 #define gtod vdso_vsyscall_gtod_data
-- 
cgit v1.2.3-59-g8ed1b


From 9773db2a301b089bb95907eec5ad1a2ef7fb4099 Mon Sep 17 00:00:00 2001
From: Cyrill Gorcunov <gorcunov@gmail.com>
Date: Wed, 30 Jan 2008 13:30:32 +0100
Subject: x86: remove dead code in ia32-emu

Remove useless second time checking of fsave argument in save_i387_ia32()
routine.  It's possible the compiler is doing the same but that is much
better to remove the dead code explicitly.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/fpu32.c | 2 --
 1 file changed, 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/fpu32.c b/arch/x86/ia32/fpu32.c
index 459bf743128f..ae80745f668f 100644
--- a/arch/x86/ia32/fpu32.c
+++ b/arch/x86/ia32/fpu32.c
@@ -174,8 +174,6 @@ int save_i387_ia32(struct task_struct *tsk, struct _fpstate_ia32 __user *buf,
 	if (fsave)
 		return 0;
 	err |= __put_user(tsk->thread.i387.fxsave.swd, &buf->status);
-	if (fsave)
-		return err ? -1 : 1;
 	err |= __put_user(X86_FXSR_MAGIC, &buf->magic);
 	err |= __copy_to_user(&buf->_fxsr_env[0], &tsk->thread.i387.fxsave,
 			      sizeof(struct i387_fxsave_struct));
-- 
cgit v1.2.3-59-g8ed1b


From c9cce83dd1d59f52e2c8f8c7d265ba4854c40785 Mon Sep 17 00:00:00 2001
From: Bernhard Walle <bwalle@suse.de>
Date: Wed, 30 Jan 2008 13:30:32 +0100
Subject: x86: remove extern declarations for code, data, bss resources

This patch removes the extern struct resource declarations for
data_resource, code_resource and bss_resource on x86 and declares that
three structures as static as done on other architectures like IA64.

On i386, these structures are moved to setup_32.c (from e820_32.c) because
that's code that is not specific to e820 and also required on EFI systems.
That makes the "extern" reference superfluous.

On x86_64, data_resource, code_resource and bss_resource are passed to
e820_reserve_resources() as arguments just as done on i386 and IA64.  That
also avoids the "extern" reference and it's possible to make it static.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/e820_32.c  | 110 ++-------------------------------------------
 arch/x86/kernel/e820_64.c  |  11 +++--
 arch/x86/kernel/setup_32.c | 106 +++++++++++++++++++++++++++++++++++++++++--
 arch/x86/kernel/setup_64.c |   8 ++--
 include/asm-x86/e820_32.h  |   6 +++
 include/asm-x86/e820_64.h  |   5 ++-
 include/linux/ioport.h     |   2 +
 7 files changed, 127 insertions(+), 121 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/e820_32.c b/arch/x86/kernel/e820_32.c
index 18f500d185a2..87cadc86d5ee 100644
--- a/arch/x86/kernel/e820_32.c
+++ b/arch/x86/kernel/e820_32.c
@@ -37,26 +37,6 @@ unsigned long pci_mem_start = 0x10000000;
 EXPORT_SYMBOL(pci_mem_start);
 #endif
 extern int user_defined_memmap;
-struct resource data_resource = {
-	.name	= "Kernel data",
-	.start	= 0,
-	.end	= 0,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
-};
-
-struct resource code_resource = {
-	.name	= "Kernel code",
-	.start	= 0,
-	.end	= 0,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
-};
-
-struct resource bss_resource = {
-	.name	= "Kernel bss",
-	.start	= 0,
-	.end	= 0,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
-};
 
 static struct resource system_rom_resource = {
 	.name	= "System ROM",
@@ -111,60 +91,6 @@ static struct resource video_rom_resource = {
 	.flags	= IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
 };
 
-static struct resource video_ram_resource = {
-	.name	= "Video RAM area",
-	.start	= 0xa0000,
-	.end	= 0xbffff,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
-};
-
-static struct resource standard_io_resources[] = { {
-	.name	= "dma1",
-	.start	= 0x0000,
-	.end	= 0x001f,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
-}, {
-	.name	= "pic1",
-	.start	= 0x0020,
-	.end	= 0x0021,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
-}, {
-	.name   = "timer0",
-	.start	= 0x0040,
-	.end    = 0x0043,
-	.flags  = IORESOURCE_BUSY | IORESOURCE_IO
-}, {
-	.name   = "timer1",
-	.start  = 0x0050,
-	.end    = 0x0053,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
-}, {
-	.name	= "keyboard",
-	.start	= 0x0060,
-	.end	= 0x006f,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
-}, {
-	.name	= "dma page reg",
-	.start	= 0x0080,
-	.end	= 0x008f,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
-}, {
-	.name	= "pic2",
-	.start	= 0x00a0,
-	.end	= 0x00a1,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
-}, {
-	.name	= "dma2",
-	.start	= 0x00c0,
-	.end	= 0x00df,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
-}, {
-	.name	= "fpu",
-	.start	= 0x00f0,
-	.end	= 0x00ff,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
-} };
-
 #define ROMSIGNATURE 0xaa55
 
 static int __init romsignature(const unsigned char *rom)
@@ -260,10 +186,9 @@ static void __init probe_roms(void)
  * Request address space for all standard RAM and ROM resources
  * and also for regions reported as reserved by the e820.
  */
-static void __init
-legacy_init_iomem_resources(struct resource *code_resource,
-			    struct resource *data_resource,
-			    struct resource *bss_resource)
+void __init legacy_init_iomem_resources(struct resource *code_resource,
+		struct resource *data_resource,
+		struct resource *bss_resource)
 {
 	int i;
 
@@ -305,35 +230,6 @@ legacy_init_iomem_resources(struct resource *code_resource,
 	}
 }
 
-/*
- * Request address space for all standard resources
- *
- * This is called just before pcibios_init(), which is also a
- * subsys_initcall, but is linked in later (in arch/i386/pci/common.c).
- */
-static int __init request_standard_resources(void)
-{
-	int i;
-
-	printk("Setting up standard PCI resources\n");
-	if (efi_enabled)
-		efi_initialize_iomem_resources(&code_resource,
-				&data_resource, &bss_resource);
-	else
-		legacy_init_iomem_resources(&code_resource,
-				&data_resource, &bss_resource);
-
-	/* EFI systems may still have VGA */
-	request_resource(&iomem_resource, &video_ram_resource);
-
-	/* request I/O space for devices used on all i[345]86 PCs */
-	for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++)
-		request_resource(&ioport_resource, &standard_io_resources[i]);
-	return 0;
-}
-
-subsys_initcall(request_standard_resources);
-
 #if defined(CONFIG_PM) && defined(CONFIG_HIBERNATION)
 /**
  * e820_mark_nosave_regions - Find the ranges of physical addresses that do not
diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index 11a3d65db0c1..151236896243 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -47,8 +47,6 @@ unsigned long end_pfn_map;
  */
 static unsigned long __initdata end_user_pfn = MAXMEM>>PAGE_SHIFT;
 
-extern struct resource code_resource, data_resource, bss_resource;
-
 /* Check for some hardcoded bad areas that early boot is not allowed to touch */
 static inline int bad_addr(unsigned long *addrp, unsigned long size)
 {
@@ -213,7 +211,8 @@ unsigned long __init e820_end_of_ram(void)
 /*
  * Mark e820 reserved areas as busy for the resource manager.
  */
-void __init e820_reserve_resources(void)
+void __init e820_reserve_resources(struct resource *code_resource,
+		struct resource *data_resource, struct resource *bss_resource)
 {
 	int i;
 	for (i = 0; i < e820.nr_map; i++) {
@@ -235,9 +234,9 @@ void __init e820_reserve_resources(void)
 			 * so we try it repeatedly and let the resource manager
 			 * test it.
 			 */
-			request_resource(res, &code_resource);
-			request_resource(res, &data_resource);
-			request_resource(res, &bss_resource);
+			request_resource(res, code_resource);
+			request_resource(res, data_resource);
+			request_resource(res, bss_resource);
 #ifdef CONFIG_KEXEC
 			if (crashk_res.start != crashk_res.end)
 				request_resource(res, &crashk_res);
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 236d30b264d8..32edf70d6b0d 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -73,9 +73,80 @@ int disable_pse __cpuinitdata = 0;
 /*
  * Machine setup..
  */
-extern struct resource code_resource;
-extern struct resource data_resource;
-extern struct resource bss_resource;
+static struct resource data_resource = {
+	.name	= "Kernel data",
+	.start	= 0,
+	.end	= 0,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
+};
+
+static struct resource code_resource = {
+	.name	= "Kernel code",
+	.start	= 0,
+	.end	= 0,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
+};
+
+static struct resource bss_resource = {
+	.name	= "Kernel bss",
+	.start	= 0,
+	.end	= 0,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
+};
+
+static struct resource video_ram_resource = {
+	.name	= "Video RAM area",
+	.start	= 0xa0000,
+	.end	= 0xbffff,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
+};
+
+static struct resource standard_io_resources[] = { {
+	.name	= "dma1",
+	.start	= 0x0000,
+	.end	= 0x001f,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
+}, {
+	.name	= "pic1",
+	.start	= 0x0020,
+	.end	= 0x0021,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
+}, {
+	.name   = "timer0",
+	.start	= 0x0040,
+	.end    = 0x0043,
+	.flags  = IORESOURCE_BUSY | IORESOURCE_IO
+}, {
+	.name   = "timer1",
+	.start  = 0x0050,
+	.end    = 0x0053,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
+}, {
+	.name	= "keyboard",
+	.start	= 0x0060,
+	.end	= 0x006f,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
+}, {
+	.name	= "dma page reg",
+	.start	= 0x0080,
+	.end	= 0x008f,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
+}, {
+	.name	= "pic2",
+	.start	= 0x00a0,
+	.end	= 0x00a1,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
+}, {
+	.name	= "dma2",
+	.start	= 0x00c0,
+	.end	= 0x00df,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
+}, {
+	.name	= "fpu",
+	.start	= 0x00f0,
+	.end	= 0x00ff,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_IO
+} };
 
 /* cpu data as detected by the assembly code in head.S */
 struct cpuinfo_x86 new_cpu_data __cpuinitdata = { 0, 0, 0, 0, -1, 1, 0, 0, -1 };
@@ -693,3 +764,32 @@ void __init setup_arch(char **cmdline_p)
 #endif
 #endif
 }
+
+/*
+ * Request address space for all standard resources
+ *
+ * This is called just before pcibios_init(), which is also a
+ * subsys_initcall, but is linked in later (in arch/i386/pci/common.c).
+ */
+static int __init request_standard_resources(void)
+{
+	int i;
+
+	printk(KERN_INFO "Setting up standard PCI resources\n");
+	if (efi_enabled)
+		efi_initialize_iomem_resources(&code_resource,
+				&data_resource, &bss_resource);
+	else
+		legacy_init_iomem_resources(&code_resource,
+				&data_resource, &bss_resource);
+
+	/* EFI systems may still have VGA */
+	request_resource(&iomem_resource, &video_ram_resource);
+
+	/* request I/O space for devices used on all i[345]86 PCs */
+	for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++)
+		request_resource(&ioport_resource, &standard_io_resources[i]);
+	return 0;
+}
+
+subsys_initcall(request_standard_resources);
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index bcb5f3aaa097..1acb435a0585 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -123,19 +123,19 @@ struct resource standard_io_resources[] = {
 
 #define IORESOURCE_RAM (IORESOURCE_BUSY | IORESOURCE_MEM)
 
-struct resource data_resource = {
+static struct resource data_resource = {
 	.name = "Kernel data",
 	.start = 0,
 	.end = 0,
 	.flags = IORESOURCE_RAM,
 };
-struct resource code_resource = {
+static struct resource code_resource = {
 	.name = "Kernel code",
 	.start = 0,
 	.end = 0,
 	.flags = IORESOURCE_RAM,
 };
-struct resource bss_resource = {
+static struct resource bss_resource = {
 	.name = "Kernel bss",
 	.start = 0,
 	.end = 0,
@@ -438,7 +438,7 @@ void __init setup_arch(char **cmdline_p)
 	/*
 	 * We trust e820 completely. No explicit ROM probing in memory.
  	 */
-	e820_reserve_resources(); 
+	e820_reserve_resources(&code_resource, &data_resource, &bss_resource);
 	e820_mark_nosave_regions();
 
 	{
diff --git a/include/asm-x86/e820_32.h b/include/asm-x86/e820_32.h
index 03f60c690c8a..ae5ea19623fa 100644
--- a/include/asm-x86/e820_32.h
+++ b/include/asm-x86/e820_32.h
@@ -12,6 +12,8 @@
 #ifndef __E820_HEADER
 #define __E820_HEADER
 
+#include <linux/ioport.h>
+
 #define HIGH_MEMORY	(1024*1024)
 
 #ifndef __ASSEMBLY__
@@ -26,6 +28,9 @@ extern void register_bootmem_low_pages(unsigned long max_low_pfn);
 extern void e820_register_memory(void);
 extern void limit_regions(unsigned long long size);
 extern void print_memory_map(char *who);
+extern void legacy_init_iomem_resources(struct resource *code_resource,
+			    struct resource *data_resource,
+			    struct resource *bss_resource);
 
 #if defined(CONFIG_PM) && defined(CONFIG_HIBERNATION)
 extern void e820_mark_nosave_regions(void);
@@ -35,5 +40,6 @@ static inline void e820_mark_nosave_regions(void)
 }
 #endif
 
+
 #endif/*!__ASSEMBLY__*/
 #endif/*__E820_HEADER*/
diff --git a/include/asm-x86/e820_64.h b/include/asm-x86/e820_64.h
index e535e6044e21..1c7ba8804176 100644
--- a/include/asm-x86/e820_64.h
+++ b/include/asm-x86/e820_64.h
@@ -11,6 +11,8 @@
 #ifndef __E820_HEADER
 #define __E820_HEADER
 
+#include <linux/ioport.h>
+
 #ifndef __ASSEMBLY__
 extern unsigned long find_e820_area(unsigned long start, unsigned long end, 
 				    unsigned size);
@@ -19,7 +21,8 @@ extern void add_memory_region(unsigned long start, unsigned long size,
 extern void setup_memory_region(void);
 extern void contig_e820_setup(void); 
 extern unsigned long e820_end_of_ram(void);
-extern void e820_reserve_resources(void);
+extern void e820_reserve_resources(struct resource *code_resource,
+		struct resource *data_resource, struct resource *bss_resource);
 extern void e820_mark_nosave_regions(void);
 extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type);
 extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type);
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 6187a8567bc7..605d237364d2 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -8,6 +8,7 @@
 #ifndef _LINUX_IOPORT_H
 #define _LINUX_IOPORT_H
 
+#ifndef __ASSEMBLY__
 #include <linux/compiler.h>
 #include <linux/types.h>
 /*
@@ -153,4 +154,5 @@ extern struct resource * __devm_request_region(struct device *dev,
 extern void __devm_release_region(struct device *dev, struct resource *parent,
 				  resource_size_t start, resource_size_t n);
 
+#endif /* __ASSEMBLY__ */
 #endif	/* _LINUX_IOPORT_H */
-- 
cgit v1.2.3-59-g8ed1b


From 416b72182ac3f3f4931ed17d0256b1d805d1b553 Mon Sep 17 00:00:00 2001
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Date: Wed, 30 Jan 2008 13:30:33 +0100
Subject: x86: clean up nmi_32/64.c

clean up and make nmi_32/64.c more similar.
- white space and coding style clean up.
- nmi_cpu_busy is available on CONFIG_SMP.
- move functions __acpi_nmi_enable, acpi_nmi_enable,
  __acpi_nmi_disable and acpi_nmi_disable.
- make variables name more similar.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/nmi_32.c | 14 ++++---
 arch/x86/kernel/nmi_64.c | 95 ++++++++++++++++++++++++------------------------
 2 files changed, 55 insertions(+), 54 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/nmi_32.c b/arch/x86/kernel/nmi_32.c
index 4f4bfd3a88b6..edd413650b3b 100644
--- a/arch/x86/kernel/nmi_32.c
+++ b/arch/x86/kernel/nmi_32.c
@@ -51,13 +51,13 @@ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu);
 
 static int endflag __initdata = 0;
 
+#ifdef CONFIG_SMP
 /* The performance counters used by NMI_LOCAL_APIC don't trigger when
  * the CPU is idle. To make sure the NMI watchdog really ticks on all
  * CPUs during the test make them busy.
  */
 static __init void nmi_cpu_busy(void *data)
 {
-#ifdef CONFIG_SMP
 	local_irq_enable_in_hardirq();
 	/* Intentionally don't use cpu_relax here. This is
 	   to make sure that the performance counter really ticks,
@@ -67,8 +67,8 @@ static __init void nmi_cpu_busy(void *data)
 	   care if they get somewhat less cycles. */
 	while (endflag == 0)
 		mb();
-#endif
 }
+#endif
 
 static int __init check_nmi_watchdog(void)
 {
@@ -87,11 +87,13 @@ static int __init check_nmi_watchdog(void)
 
 	printk(KERN_INFO "Testing NMI watchdog ... ");
 
+#ifdef CONFIG_SMP
 	if (nmi_watchdog == NMI_LOCAL_APIC)
 		smp_call_function(nmi_cpu_busy, (void *)&endflag, 0, 0);
+#endif
 
 	for_each_possible_cpu(cpu)
-		prev_nmi_count[cpu] = per_cpu(irq_stat, cpu).__nmi_count;
+		prev_nmi_count[cpu] = nmi_count(cpu);
 	local_irq_enable();
 	mdelay((20*1000)/nmi_hz); // wait 20 ticks
 
@@ -237,10 +239,10 @@ void acpi_nmi_disable(void)
 		on_each_cpu(__acpi_nmi_disable, NULL, 0, 1);
 }
 
-void setup_apic_nmi_watchdog (void *unused)
+void setup_apic_nmi_watchdog(void *unused)
 {
 	if (__get_cpu_var(wd_enabled))
- 		return;
+		return;
 
 	/* cheap hack to support suspend/resume */
 	/* if cpu0 is not active neither should the other cpus */
@@ -329,7 +331,7 @@ __kprobes int nmi_watchdog_tick(struct pt_regs * regs, unsigned reason)
 	unsigned int sum;
 	int touched = 0;
 	int cpu = smp_processor_id();
-	int rc=0;
+	int rc = 0;
 
 	/* check for other users first */
 	if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT)
diff --git a/arch/x86/kernel/nmi_64.c b/arch/x86/kernel/nmi_64.c
index 53faef632fc6..fb99484d21cf 100644
--- a/arch/x86/kernel/nmi_64.c
+++ b/arch/x86/kernel/nmi_64.c
@@ -78,22 +78,22 @@ static __init void nmi_cpu_busy(void *data)
 }
 #endif
 
-int __init check_nmi_watchdog (void)
+int __init check_nmi_watchdog(void)
 {
-	int *counts;
+	int *prev_nmi_count;
 	int cpu;
 
-	if ((nmi_watchdog == NMI_NONE) || (nmi_watchdog == NMI_DISABLED)) 
+	if ((nmi_watchdog == NMI_NONE) || (nmi_watchdog == NMI_DISABLED))
 		return 0;
 
 	if (!atomic_read(&nmi_active))
 		return 0;
 
-	counts = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL);
-	if (!counts)
+	prev_nmi_count = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL);
+	if (!prev_nmi_count)
 		return -1;
 
-	printk(KERN_INFO "testing NMI watchdog ... ");
+	printk(KERN_INFO "Testing NMI watchdog ... ");
 
 #ifdef CONFIG_SMP
 	if (nmi_watchdog == NMI_LOCAL_APIC)
@@ -101,30 +101,29 @@ int __init check_nmi_watchdog (void)
 #endif
 
 	for (cpu = 0; cpu < NR_CPUS; cpu++)
-		counts[cpu] = cpu_pda(cpu)->__nmi_count;
+		prev_nmi_count[cpu] = cpu_pda(cpu)->__nmi_count;
 	local_irq_enable();
 	mdelay((20*1000)/nmi_hz); // wait 20 ticks
 
 	for_each_online_cpu(cpu) {
 		if (!per_cpu(wd_enabled, cpu))
 			continue;
-		if (cpu_pda(cpu)->__nmi_count - counts[cpu] <= 5) {
+		if (cpu_pda(cpu)->__nmi_count - prev_nmi_count[cpu] <= 5) {
 			printk(KERN_WARNING "WARNING: CPU#%d: NMI "
 			       "appears to be stuck (%d->%d)!\n",
-			       cpu,
-			       counts[cpu],
-			       cpu_pda(cpu)->__nmi_count);
+				cpu,
+				prev_nmi_count[cpu],
+				cpu_pda(cpu)->__nmi_count);
 			per_cpu(wd_enabled, cpu) = 0;
 			atomic_dec(&nmi_active);
 		}
 	}
+	endflag = 1;
 	if (!atomic_read(&nmi_active)) {
-		kfree(counts);
+		kfree(prev_nmi_count);
 		atomic_set(&nmi_active, -1);
-		endflag = 1;
 		return -1;
 	}
-	endflag = 1;
 	printk("OK.\n");
 
 	/* now that we know it works we can reduce NMI frequency to
@@ -132,7 +131,7 @@ int __init check_nmi_watchdog (void)
 	if (nmi_watchdog == NMI_LOCAL_APIC)
 		nmi_hz = lapic_adjust_nmi_hz(1);
 
-	kfree(counts);
+	kfree(prev_nmi_count);
 	return 0;
 }
 
@@ -159,34 +158,6 @@ static int __init setup_nmi_watchdog(char *str)
 
 __setup("nmi_watchdog=", setup_nmi_watchdog);
 
-
-static void __acpi_nmi_disable(void *__unused)
-{
-	apic_write(APIC_LVT0, APIC_DM_NMI | APIC_LVT_MASKED);
-}
-
-/*
- * Disable timer based NMIs on all CPUs:
- */
-void acpi_nmi_disable(void)
-{
-	if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC)
-		on_each_cpu(__acpi_nmi_disable, NULL, 0, 1);
-}
-
-static void __acpi_nmi_enable(void *__unused)
-{
-	apic_write(APIC_LVT0, APIC_DM_NMI);
-}
-
-/*
- * Enable timer based NMIs on all CPUs:
- */
-void acpi_nmi_enable(void)
-{
-	if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC)
-		on_each_cpu(__acpi_nmi_enable, NULL, 0, 1);
-}
 #ifdef CONFIG_PM
 
 static int nmi_pm_active; /* nmi_active before suspend */
@@ -217,7 +188,7 @@ static struct sysdev_class nmi_sysclass = {
 };
 
 static struct sys_device device_lapic_nmi = {
-	.id		= 0,
+	.id	= 0,
 	.cls	= &nmi_sysclass,
 };
 
@@ -231,7 +202,7 @@ static int __init init_lapic_nmi_sysfs(void)
 	if (nmi_watchdog != NMI_LOCAL_APIC)
 		return 0;
 
-	if ( atomic_read(&nmi_active) < 0 )
+	if (atomic_read(&nmi_active) < 0)
 		return 0;
 
 	error = sysdev_class_register(&nmi_sysclass);
@@ -244,9 +215,37 @@ late_initcall(init_lapic_nmi_sysfs);
 
 #endif	/* CONFIG_PM */
 
+static void __acpi_nmi_enable(void *__unused)
+{
+	apic_write(APIC_LVT0, APIC_DM_NMI);
+}
+
+/*
+ * Enable timer based NMIs on all CPUs:
+ */
+void acpi_nmi_enable(void)
+{
+	if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC)
+		on_each_cpu(__acpi_nmi_enable, NULL, 0, 1);
+}
+
+static void __acpi_nmi_disable(void *__unused)
+{
+	apic_write(APIC_LVT0, APIC_DM_NMI | APIC_LVT_MASKED);
+}
+
+/*
+ * Disable timer based NMIs on all CPUs:
+ */
+void acpi_nmi_disable(void)
+{
+	if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC)
+		on_each_cpu(__acpi_nmi_disable, NULL, 0, 1);
+}
+
 void setup_apic_nmi_watchdog(void *unused)
 {
-	if (__get_cpu_var(wd_enabled) == 1)
+	if (__get_cpu_var(wd_enabled))
 		return;
 
 	/* cheap hack to support suspend/resume */
@@ -311,8 +310,9 @@ void touch_nmi_watchdog(void)
 		}
 	}
 
- 	touch_softlockup_watchdog();
+	touch_softlockup_watchdog();
 }
+EXPORT_SYMBOL(touch_nmi_watchdog);
 
 int __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason)
 {
@@ -479,4 +479,3 @@ void __trigger_all_cpu_backtrace(void)
 
 EXPORT_SYMBOL(nmi_active);
 EXPORT_SYMBOL(nmi_watchdog);
-EXPORT_SYMBOL(touch_nmi_watchdog);
-- 
cgit v1.2.3-59-g8ed1b


From 6abcd98ffafbff81f0bfd7ee1d129e634af13245 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:30:33 +0100
Subject: x86: irqflags consolidation

This patch consolidates the irqflags include files containing common
paravirt definitions. The native definition for interrupt handling, halt,
and such, are the same for 32 and 64 bit, and they are kept in irqflags.h.
the differences are split in the arch-specific files.

The syscall function, irq_enable_sysexit, has a very specific i386 naming,
and its name is then changed to a more general one.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/asm-offsets_32.c |   2 +-
 arch/x86/kernel/entry_32.S       |   8 +-
 arch/x86/kernel/paravirt_32.c    |  10 +-
 arch/x86/kernel/vmi_32.c         |   4 +-
 arch/x86/xen/enlighten.c         |   2 +-
 include/asm-x86/irqflags.h       | 246 ++++++++++++++++++++++++++++++++++++++-
 include/asm-x86/irqflags_32.h    | 195 -------------------------------
 include/asm-x86/irqflags_64.h    | 174 ---------------------------
 include/asm-x86/paravirt.h       |   9 +-
 9 files changed, 261 insertions(+), 389 deletions(-)
 delete mode 100644 include/asm-x86/irqflags_32.h
 delete mode 100644 include/asm-x86/irqflags_64.h

(limited to 'arch')

diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index 0e45981b2dd7..c1ccfabb4a9e 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -123,7 +123,7 @@ void foo(void)
 	OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
 	OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
 	OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
-	OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
+	OFFSET(PV_CPU_irq_enable_syscall_ret, pv_cpu_ops, irq_enable_syscall_ret);
 	OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
 #endif
 
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index dc7f938e5015..d63609dd64b9 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -58,7 +58,7 @@
  * for paravirtualization.  The following will never clobber any registers:
  *   INTERRUPT_RETURN (aka. "iret")
  *   GET_CR0_INTO_EAX (aka. "movl %cr0, %eax")
- *   ENABLE_INTERRUPTS_SYSEXIT (aka "sti; sysexit").
+ *   ENABLE_INTERRUPTS_SYSCALL_RET (aka "sti; sysexit").
  *
  * For DISABLE_INTERRUPTS/ENABLE_INTERRUPTS (aka "cli"/"sti"), you must
  * specify what registers can be overwritten (CLBR_NONE, CLBR_EAX/EDX/ECX/ANY).
@@ -351,7 +351,7 @@ sysenter_past_esp:
 	xorl %ebp,%ebp
 	TRACE_IRQS_ON
 1:	mov  PT_FS(%esp), %fs
-	ENABLE_INTERRUPTS_SYSEXIT
+	ENABLE_INTERRUPTS_SYSCALL_RET
 	CFI_ENDPROC
 .pushsection .fixup,"ax"
 2:	movl $0,PT_FS(%esp)
@@ -882,10 +882,10 @@ ENTRY(native_iret)
 .previous
 END(native_iret)
 
-ENTRY(native_irq_enable_sysexit)
+ENTRY(native_irq_enable_syscall_ret)
 	sti
 	sysexit
-END(native_irq_enable_sysexit)
+END(native_irq_enable_syscall_ret)
 #endif
 
 KPROBE_ENTRY(int3)
diff --git a/arch/x86/kernel/paravirt_32.c b/arch/x86/kernel/paravirt_32.c
index f5000799f8ef..706b0562ea40 100644
--- a/arch/x86/kernel/paravirt_32.c
+++ b/arch/x86/kernel/paravirt_32.c
@@ -60,7 +60,7 @@ DEF_NATIVE(pv_irq_ops, irq_enable, "sti");
 DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf");
 DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax");
 DEF_NATIVE(pv_cpu_ops, iret, "iret");
-DEF_NATIVE(pv_cpu_ops, irq_enable_sysexit, "sti; sysexit");
+DEF_NATIVE(pv_cpu_ops, irq_enable_syscall_ret, "sti; sysexit");
 DEF_NATIVE(pv_mmu_ops, read_cr2, "mov %cr2, %eax");
 DEF_NATIVE(pv_mmu_ops, write_cr3, "mov %eax, %cr3");
 DEF_NATIVE(pv_mmu_ops, read_cr3, "mov %cr3, %eax");
@@ -88,7 +88,7 @@ static unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
 	SITE(pv_irq_ops, restore_fl);
 	SITE(pv_irq_ops, save_fl);
 	SITE(pv_cpu_ops, iret);
-	SITE(pv_cpu_ops, irq_enable_sysexit);
+	SITE(pv_cpu_ops, irq_enable_syscall_ret);
 	SITE(pv_mmu_ops, read_cr2);
 	SITE(pv_mmu_ops, read_cr3);
 	SITE(pv_mmu_ops, write_cr3);
@@ -186,7 +186,7 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
 		/* If the operation is a nop, then nop the callsite */
 		ret = paravirt_patch_nop();
 	else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) ||
-		 type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit))
+		 type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_syscall_ret))
 		/* If operation requires a jmp, then jmp */
 		ret = paravirt_patch_jmp(insnbuf, opfunc, addr, len);
 	else
@@ -237,7 +237,7 @@ static void native_flush_tlb_single(unsigned long addr)
 
 /* These are in entry.S */
 extern void native_iret(void);
-extern void native_irq_enable_sysexit(void);
+extern void native_irq_enable_syscall_ret(void);
 
 static int __init print_banner(void)
 {
@@ -384,7 +384,7 @@ struct pv_cpu_ops pv_cpu_ops = {
 	.write_idt_entry = write_dt_entry,
 	.load_esp0 = native_load_esp0,
 
-	.irq_enable_sysexit = native_irq_enable_sysexit,
+	.irq_enable_syscall_ret = native_irq_enable_syscall_ret,
 	.iret = native_iret,
 
 	.set_iopl_mask = native_set_iopl_mask,
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index f02bad68abaa..aacce426cbd0 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -148,7 +148,7 @@ static unsigned vmi_patch(u8 type, u16 clobbers, void *insns,
 					      insns, eip);
 		case PARAVIRT_PATCH(pv_cpu_ops.iret):
 			return patch_internal(VMI_CALL_IRET, len, insns, eip);
-		case PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit):
+		case PARAVIRT_PATCH(pv_cpu_ops.irq_enable_syscall_ret):
 			return patch_internal(VMI_CALL_SYSEXIT, len, insns, eip);
 		default:
 			break;
@@ -870,7 +870,7 @@ static inline int __init activate_vmi(void)
 	 * the backend.  They are performance critical anyway, so requiring
 	 * a patch is not a big problem.
 	 */
-	pv_cpu_ops.irq_enable_sysexit = (void *)0xfeedbab0;
+	pv_cpu_ops.irq_enable_syscall_ret = (void *)0xfeedbab0;
 	pv_cpu_ops.iret = (void *)0xbadbab0;
 
 #ifdef CONFIG_SMP
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 00829401389e..d3574485cb15 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -953,7 +953,7 @@ static const struct pv_cpu_ops xen_cpu_ops __initdata = {
 	.read_pmc = native_read_pmc,
 
 	.iret = (void *)&hypercall_page[__HYPERVISOR_iret],
-	.irq_enable_sysexit = NULL,  /* never called */
+	.irq_enable_syscall_ret = NULL,  /* never called */
 
 	.load_tr_desc = paravirt_nop,
 	.set_ldt = xen_set_ldt,
diff --git a/include/asm-x86/irqflags.h b/include/asm-x86/irqflags.h
index 1b695ff52687..92021c1ffa3a 100644
--- a/include/asm-x86/irqflags.h
+++ b/include/asm-x86/irqflags.h
@@ -1,5 +1,245 @@
-#ifdef CONFIG_X86_32
-# include "irqflags_32.h"
+#ifndef _X86_IRQFLAGS_H_
+#define _X86_IRQFLAGS_H_
+
+#include <asm/processor-flags.h>
+
+#ifndef __ASSEMBLY__
+/*
+ * Interrupt control:
+ */
+
+static inline unsigned long native_save_fl(void)
+{
+	unsigned long flags;
+
+	__asm__ __volatile__(
+		"# __raw_save_flags\n\t"
+		"pushf ; pop %0"
+		: "=g" (flags)
+		: /* no input */
+		: "memory"
+	);
+
+	return flags;
+}
+
+static inline void native_restore_fl(unsigned long flags)
+{
+	__asm__ __volatile__(
+		"push %0 ; popf"
+		: /* no output */
+		:"g" (flags)
+		:"memory", "cc"
+	);
+}
+
+static inline void native_irq_disable(void)
+{
+	asm volatile("cli": : :"memory");
+}
+
+static inline void native_irq_enable(void)
+{
+	asm volatile("sti": : :"memory");
+}
+
+static inline void native_safe_halt(void)
+{
+	asm volatile("sti; hlt": : :"memory");
+}
+
+static inline void native_halt(void)
+{
+	asm volatile("hlt": : :"memory");
+}
+
+#endif
+
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
+#ifndef __ASSEMBLY__
+
+static inline unsigned long __raw_local_save_flags(void)
+{
+	return native_save_fl();
+}
+
+static inline void raw_local_irq_restore(unsigned long flags)
+{
+	native_restore_fl(flags);
+}
+
+static inline void raw_local_irq_disable(void)
+{
+	native_irq_disable();
+}
+
+static inline void raw_local_irq_enable(void)
+{
+	native_irq_enable();
+}
+
+/*
+ * Used in the idle loop; sti takes one instruction cycle
+ * to complete:
+ */
+static inline void raw_safe_halt(void)
+{
+	native_safe_halt();
+}
+
+/*
+ * Used when interrupts are already enabled or to
+ * shutdown the processor:
+ */
+static inline void halt(void)
+{
+	native_halt();
+}
+
+/*
+ * For spinlocks, etc:
+ */
+static inline unsigned long __raw_local_irq_save(void)
+{
+	unsigned long flags = __raw_local_save_flags();
+
+	raw_local_irq_disable();
+
+	return flags;
+}
+#else
+
+#define ENABLE_INTERRUPTS(x)	sti
+#define DISABLE_INTERRUPTS(x)	cli
+
+#ifdef CONFIG_X86_64
+#define INTERRUPT_RETURN	iretq
+#define ENABLE_INTERRUPTS_SYSCALL_RET			\
+			movq	%gs:pda_oldrsp, %rsp;	\
+			swapgs;				\
+			sysretq;
+#else
+#define INTERRUPT_RETURN		iret
+#define ENABLE_INTERRUPTS_SYSCALL_RET	sti; sysexit
+#define GET_CR0_INTO_EAX		movl %cr0, %eax
+#endif
+
+
+#endif /* __ASSEMBLY__ */
+#endif /* CONFIG_PARAVIRT */
+
+#ifndef __ASSEMBLY__
+#define raw_local_save_flags(flags) \
+		do { (flags) = __raw_local_save_flags(); } while (0)
+
+#define raw_local_irq_save(flags) \
+		do { (flags) = __raw_local_irq_save(); } while (0)
+
+static inline int raw_irqs_disabled_flags(unsigned long flags)
+{
+	return !(flags & X86_EFLAGS_IF);
+}
+
+static inline int raw_irqs_disabled(void)
+{
+	unsigned long flags = __raw_local_save_flags();
+
+	return raw_irqs_disabled_flags(flags);
+}
+
+/*
+ * makes the traced hardirq state match with the machine state
+ *
+ * should be a rarely used function, only in places where its
+ * otherwise impossible to know the irq state, like in traps.
+ */
+static inline void trace_hardirqs_fixup_flags(unsigned long flags)
+{
+	if (raw_irqs_disabled_flags(flags))
+		trace_hardirqs_off();
+	else
+		trace_hardirqs_on();
+}
+
+static inline void trace_hardirqs_fixup(void)
+{
+	unsigned long flags = __raw_local_save_flags();
+
+	trace_hardirqs_fixup_flags(flags);
+}
+
 #else
-# include "irqflags_64.h"
+
+#ifdef CONFIG_X86_64
+/*
+ * Currently paravirt can't handle swapgs nicely when we
+ * don't have a stack we can rely on (such as a user space
+ * stack).  So we either find a way around these or just fault
+ * and emulate if a guest tries to call swapgs directly.
+ *
+ * Either way, this is a good way to document that we don't
+ * have a reliable stack. x86_64 only.
+ */
+#define SWAPGS_UNSAFE_STACK	swapgs
+#define ARCH_TRACE_IRQS_ON		call trace_hardirqs_on_thunk
+#define ARCH_TRACE_IRQS_OFF		call trace_hardirqs_off_thunk
+#define ARCH_LOCKDEP_SYS_EXIT		call lockdep_sys_exit_thunk
+#define ARCH_LOCKDEP_SYS_EXIT_IRQ	\
+	TRACE_IRQS_ON; \
+	sti; \
+	SAVE_REST; \
+	LOCKDEP_SYS_EXIT; \
+	RESTORE_REST; \
+	cli; \
+	TRACE_IRQS_OFF;
+
+#else
+#define ARCH_TRACE_IRQS_ON			\
+	pushl %eax;				\
+	pushl %ecx;				\
+	pushl %edx;				\
+	call trace_hardirqs_on;			\
+	popl %edx;				\
+	popl %ecx;				\
+	popl %eax;
+
+#define ARCH_TRACE_IRQS_OFF			\
+	pushl %eax;				\
+	pushl %ecx;				\
+	pushl %edx;				\
+	call trace_hardirqs_off;		\
+	popl %edx;				\
+	popl %ecx;				\
+	popl %eax;
+
+#define ARCH_LOCKDEP_SYS_EXIT			\
+	pushl %eax;				\
+	pushl %ecx;				\
+	pushl %edx;				\
+	call lockdep_sys_exit;			\
+	popl %edx;				\
+	popl %ecx;				\
+	popl %eax;
+
+#define ARCH_LOCKDEP_SYS_EXIT_IRQ
+#endif
+
+#ifdef CONFIG_TRACE_IRQFLAGS
+#  define TRACE_IRQS_ON		ARCH_TRACE_IRQS_ON
+#  define TRACE_IRQS_OFF	ARCH_TRACE_IRQS_OFF
+#else
+#  define TRACE_IRQS_ON
+#  define TRACE_IRQS_OFF
+#endif
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+#  define LOCKDEP_SYS_EXIT	ARCH_LOCKDEP_SYS_EXIT
+#  define LOCKDEP_SYS_EXIT_IRQ	ARCH_LOCKDEP_SYS_EXIT_IRQ
+# else
+#  define LOCKDEP_SYS_EXIT
+#  define LOCKDEP_SYS_EXIT_IRQ
+# endif
+
+#endif /* __ASSEMBLY__ */
 #endif
diff --git a/include/asm-x86/irqflags_32.h b/include/asm-x86/irqflags_32.h
deleted file mode 100644
index 98b21b9bdce8..000000000000
--- a/include/asm-x86/irqflags_32.h
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * IRQ flags handling
- *
- * This file gets included from lowlevel asm headers too, to provide
- * wrapped versions of the local_irq_*() APIs, based on the
- * raw_local_irq_*() functions from the lowlevel headers.
- */
-#ifndef _ASM_IRQFLAGS_H
-#define _ASM_IRQFLAGS_H
-#include <asm/processor-flags.h>
-
-#ifndef __ASSEMBLY__
-static inline unsigned long native_save_fl(void)
-{
-	unsigned long f;
-	asm volatile("pushfl ; popl %0":"=g" (f): /* no input */);
-	return f;
-}
-
-static inline void native_restore_fl(unsigned long f)
-{
-	asm volatile("pushl %0 ; popfl": /* no output */
-			     :"g" (f)
-			     :"memory", "cc");
-}
-
-static inline void native_irq_disable(void)
-{
-	asm volatile("cli": : :"memory");
-}
-
-static inline void native_irq_enable(void)
-{
-	asm volatile("sti": : :"memory");
-}
-
-static inline void native_safe_halt(void)
-{
-	asm volatile("sti; hlt": : :"memory");
-}
-
-static inline void native_halt(void)
-{
-	asm volatile("hlt": : :"memory");
-}
-#endif	/* __ASSEMBLY__ */
-
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else
-#ifndef __ASSEMBLY__
-
-static inline unsigned long __raw_local_save_flags(void)
-{
-	return native_save_fl();
-}
-
-static inline void raw_local_irq_restore(unsigned long flags)
-{
-	native_restore_fl(flags);
-}
-
-static inline void raw_local_irq_disable(void)
-{
-	native_irq_disable();
-}
-
-static inline void raw_local_irq_enable(void)
-{
-	native_irq_enable();
-}
-
-/*
- * Used in the idle loop; sti takes one instruction cycle
- * to complete:
- */
-static inline void raw_safe_halt(void)
-{
-	native_safe_halt();
-}
-
-/*
- * Used when interrupts are already enabled or to
- * shutdown the processor:
- */
-static inline void halt(void)
-{
-	native_halt();
-}
-
-/*
- * For spinlocks, etc:
- */
-static inline unsigned long __raw_local_irq_save(void)
-{
-	unsigned long flags = __raw_local_save_flags();
-
-	raw_local_irq_disable();
-
-	return flags;
-}
-
-#else
-#define DISABLE_INTERRUPTS(clobbers)	cli
-#define ENABLE_INTERRUPTS(clobbers)	sti
-#define ENABLE_INTERRUPTS_SYSEXIT	sti; sysexit
-#define INTERRUPT_RETURN		iret
-#define GET_CR0_INTO_EAX		movl %cr0, %eax
-#endif /* __ASSEMBLY__ */
-#endif /* CONFIG_PARAVIRT */
-
-#ifndef __ASSEMBLY__
-#define raw_local_save_flags(flags) \
-		do { (flags) = __raw_local_save_flags(); } while (0)
-
-#define raw_local_irq_save(flags) \
-		do { (flags) = __raw_local_irq_save(); } while (0)
-
-static inline int raw_irqs_disabled_flags(unsigned long flags)
-{
-	return !(flags & X86_EFLAGS_IF);
-}
-
-static inline int raw_irqs_disabled(void)
-{
-	unsigned long flags = __raw_local_save_flags();
-
-	return raw_irqs_disabled_flags(flags);
-}
-
-/*
- * makes the traced hardirq state match with the machine state
- *
- * should be a rarely used function, only in places where its
- * otherwise impossible to know the irq state, like in traps.
- */
-static inline void trace_hardirqs_fixup_flags(unsigned long flags)
-{
-	if (raw_irqs_disabled_flags(flags))
-		trace_hardirqs_off();
-	else
-		trace_hardirqs_on();
-}
-
-static inline void trace_hardirqs_fixup(void)
-{
-	unsigned long flags = __raw_local_save_flags();
-
-	trace_hardirqs_fixup_flags(flags);
-}
-#endif /* __ASSEMBLY__ */
-
-/*
- * Do the CPU's IRQ-state tracing from assembly code. We call a
- * C function, so save all the C-clobbered registers:
- */
-#ifdef CONFIG_TRACE_IRQFLAGS
-
-# define TRACE_IRQS_ON				\
-	pushl %eax;				\
-	pushl %ecx;				\
-	pushl %edx;				\
-	call trace_hardirqs_on;			\
-	popl %edx;				\
-	popl %ecx;				\
-	popl %eax;
-
-# define TRACE_IRQS_OFF				\
-	pushl %eax;				\
-	pushl %ecx;				\
-	pushl %edx;				\
-	call trace_hardirqs_off;		\
-	popl %edx;				\
-	popl %ecx;				\
-	popl %eax;
-
-#else
-# define TRACE_IRQS_ON
-# define TRACE_IRQS_OFF
-#endif
-
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-# define LOCKDEP_SYS_EXIT			\
-	pushl %eax;				\
-	pushl %ecx;				\
-	pushl %edx;				\
-	call lockdep_sys_exit;			\
-	popl %edx;				\
-	popl %ecx;				\
-	popl %eax;
-#else
-# define LOCKDEP_SYS_EXIT
-#endif
-
-#endif
diff --git a/include/asm-x86/irqflags_64.h b/include/asm-x86/irqflags_64.h
deleted file mode 100644
index 38c07db733cf..000000000000
--- a/include/asm-x86/irqflags_64.h
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * IRQ flags handling
- *
- * This file gets included from lowlevel asm headers too, to provide
- * wrapped versions of the local_irq_*() APIs, based on the
- * raw_local_irq_*() functions from the lowlevel headers.
- */
-#ifndef _ASM_IRQFLAGS_H
-#define _ASM_IRQFLAGS_H
-#include <asm/processor-flags.h>
-
-#ifndef __ASSEMBLY__
-/*
- * Interrupt control:
- */
-
-static inline unsigned long __raw_local_save_flags(void)
-{
-	unsigned long flags;
-
-	__asm__ __volatile__(
-		"# __raw_save_flags\n\t"
-		"pushfq ; popq %q0"
-		: "=g" (flags)
-		: /* no input */
-		: "memory"
-	);
-
-	return flags;
-}
-
-#define raw_local_save_flags(flags) \
-		do { (flags) = __raw_local_save_flags(); } while (0)
-
-static inline void raw_local_irq_restore(unsigned long flags)
-{
-	__asm__ __volatile__(
-		"pushq %0 ; popfq"
-		: /* no output */
-		:"g" (flags)
-		:"memory", "cc"
-	);
-}
-
-#ifdef CONFIG_X86_VSMP
-
-/*
- * Interrupt control for the VSMP architecture:
- */
-
-static inline void raw_local_irq_disable(void)
-{
-	unsigned long flags = __raw_local_save_flags();
-
-	raw_local_irq_restore((flags & ~X86_EFLAGS_IF) | X86_EFLAGS_AC);
-}
-
-static inline void raw_local_irq_enable(void)
-{
-	unsigned long flags = __raw_local_save_flags();
-
-	raw_local_irq_restore((flags | X86_EFLAGS_IF) & (~X86_EFLAGS_AC));
-}
-
-static inline int raw_irqs_disabled_flags(unsigned long flags)
-{
-	return !(flags & X86_EFLAGS_IF) || (flags & X86_EFLAGS_AC);
-}
-
-#else /* CONFIG_X86_VSMP */
-
-static inline void raw_local_irq_disable(void)
-{
-	__asm__ __volatile__("cli" : : : "memory");
-}
-
-static inline void raw_local_irq_enable(void)
-{
-	__asm__ __volatile__("sti" : : : "memory");
-}
-
-static inline int raw_irqs_disabled_flags(unsigned long flags)
-{
-	return !(flags & X86_EFLAGS_IF);
-}
-
-#endif
-
-/*
- * For spinlocks, etc.:
- */
-
-static inline unsigned long __raw_local_irq_save(void)
-{
-	unsigned long flags = __raw_local_save_flags();
-
-	raw_local_irq_disable();
-
-	return flags;
-}
-
-#define raw_local_irq_save(flags) \
-		do { (flags) = __raw_local_irq_save(); } while (0)
-
-static inline int raw_irqs_disabled(void)
-{
-	unsigned long flags = __raw_local_save_flags();
-
-	return raw_irqs_disabled_flags(flags);
-}
-
-/*
- * makes the traced hardirq state match with the machine state
- *
- * should be a rarely used function, only in places where its
- * otherwise impossible to know the irq state, like in traps.
- */
-static inline void trace_hardirqs_fixup_flags(unsigned long flags)
-{
-	if (raw_irqs_disabled_flags(flags))
-		trace_hardirqs_off();
-	else
-		trace_hardirqs_on();
-}
-
-static inline void trace_hardirqs_fixup(void)
-{
-	unsigned long flags = __raw_local_save_flags();
-
-	trace_hardirqs_fixup_flags(flags);
-}
-/*
- * Used in the idle loop; sti takes one instruction cycle
- * to complete:
- */
-static inline void raw_safe_halt(void)
-{
-	__asm__ __volatile__("sti; hlt" : : : "memory");
-}
-
-/*
- * Used when interrupts are already enabled or to
- * shutdown the processor:
- */
-static inline void halt(void)
-{
-	__asm__ __volatile__("hlt": : :"memory");
-}
-
-#else /* __ASSEMBLY__: */
-# ifdef CONFIG_TRACE_IRQFLAGS
-#  define TRACE_IRQS_ON		call trace_hardirqs_on_thunk
-#  define TRACE_IRQS_OFF	call trace_hardirqs_off_thunk
-# else
-#  define TRACE_IRQS_ON
-#  define TRACE_IRQS_OFF
-# endif
-# ifdef CONFIG_DEBUG_LOCK_ALLOC
-#  define LOCKDEP_SYS_EXIT	call lockdep_sys_exit_thunk
-#  define LOCKDEP_SYS_EXIT_IRQ	\
-	TRACE_IRQS_ON; \
-	sti; \
-	SAVE_REST; \
-	LOCKDEP_SYS_EXIT; \
-	RESTORE_REST; \
-	cli; \
-	TRACE_IRQS_OFF;
-# else
-#  define LOCKDEP_SYS_EXIT
-#  define LOCKDEP_SYS_EXIT_IRQ
-# endif
-#endif
-
-#endif
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 19fd3e67b08c..be7b934f6c54 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -121,7 +121,7 @@ struct pv_cpu_ops {
 	u64 (*read_pmc)(void);
 
 	/* These two are jmp to, not actually called. */
-	void (*irq_enable_sysexit)(void);
+	void (*irq_enable_syscall_ret)(void);
 	void (*iret)(void);
 
 	struct pv_lazy_ops lazy_mode;
@@ -1138,9 +1138,10 @@ static inline unsigned long __raw_local_irq_save(void)
 		  call *%cs:pv_irq_ops+PV_IRQ_irq_enable;		\
 		  popl %edx; popl %ecx; popl %eax)
 
-#define ENABLE_INTERRUPTS_SYSEXIT					       \
-	PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit), CLBR_NONE,\
-		  jmp *%cs:pv_cpu_ops+PV_CPU_irq_enable_sysexit)
+#define ENABLE_INTERRUPTS_SYSCALL_RET					\
+	PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_syscall_ret),\
+		  CLBR_NONE,						\
+		  jmp *%cs:pv_cpu_ops+PV_CPU_irq_enable_syscall_ret)
 
 #define GET_CR0_INTO_EAX			\
 	push %ecx; push %edx;			\
-- 
cgit v1.2.3-59-g8ed1b


From 0b9c99b6f21c2e9e00938e9c57942ed71bfe4d21 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:35 +0100
Subject: x86: cleanup tlbflush.h variants

Bring the tlbflush.h variants into sync to prepare merging and
paravirt support.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/smp_64.c            |  12 ++--
 arch/x86/mach-voyager/voyager_smp.c |   7 +--
 arch/x86/mm/boot_ioremap_32.c       |   2 +-
 include/asm-x86/cpufeature.h        |   9 +++
 include/asm-x86/tlbflush_32.h       | 120 +++++++++++++++---------------------
 include/asm-x86/tlbflush_64.h       |  78 +++++++++++++++++------
 6 files changed, 128 insertions(+), 100 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/smp_64.c b/arch/x86/kernel/smp_64.c
index 62b0f2a1b1e8..7142447b5666 100644
--- a/arch/x86/kernel/smp_64.c
+++ b/arch/x86/kernel/smp_64.c
@@ -55,7 +55,6 @@ union smp_flush_state {
 		cpumask_t flush_cpumask;
 		struct mm_struct *flush_mm;
 		unsigned long flush_va;
-#define FLUSH_ALL	-1ULL
 		spinlock_t tlbstate_lock;
 	};
 	char pad[SMP_CACHE_BYTES];
@@ -153,7 +152,7 @@ asmlinkage void smp_invalidate_interrupt(struct pt_regs *regs)
 
 	if (f->flush_mm == read_pda(active_mm)) {
 		if (read_pda(mmu_state) == TLBSTATE_OK) {
-			if (f->flush_va == FLUSH_ALL)
+			if (f->flush_va == TLB_FLUSH_ALL)
 				local_flush_tlb();
 			else
 				__flush_tlb_one(f->flush_va);
@@ -166,11 +165,12 @@ out:
 	add_pda(irq_tlb_count, 1);
 }
 
-static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
-						unsigned long va)
+void native_flush_tlb_others(const cpumask_t *cpumaskp, struct mm_struct *mm,
+			     unsigned long va)
 {
 	int sender;
 	union smp_flush_state *f;
+	cpumask_t cpumask = *cpumaskp;
 
 	/* Caller has disabled preemption */
 	sender = smp_processor_id() % NUM_INVALIDATE_TLB_VECTORS;
@@ -223,7 +223,7 @@ void flush_tlb_current_task(void)
 
 	local_flush_tlb();
 	if (!cpus_empty(cpu_mask))
-		flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
+		flush_tlb_others(cpu_mask, mm, TLB_FLUSH_ALL);
 	preempt_enable();
 }
 
@@ -242,7 +242,7 @@ void flush_tlb_mm (struct mm_struct * mm)
 			leave_mm(smp_processor_id());
 	}
 	if (!cpus_empty(cpu_mask))
-		flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
+		flush_tlb_others(cpu_mask, mm, TLB_FLUSH_ALL);
 
 	preempt_enable();
 }
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index 981def2b4e9b..b472a2df0b7f 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -800,7 +800,6 @@ static void smp_reschedule_interrupt(void)
 static struct mm_struct *flush_mm;
 static unsigned long flush_va;
 static DEFINE_SPINLOCK(tlbstate_lock);
-#define FLUSH_ALL	0xffffffff
 
 /*
  * We cannot call mmdrop() because we are in interrupt context,
@@ -834,7 +833,7 @@ static void smp_invalidate_interrupt(void)
 
 	if (flush_mm == per_cpu(cpu_tlbstate, cpu).active_mm) {
 		if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK) {
-			if (flush_va == FLUSH_ALL)
+			if (flush_va == TLB_FLUSH_ALL)
 				local_flush_tlb();
 			else
 				__flush_tlb_one(flush_va);
@@ -903,7 +902,7 @@ void flush_tlb_current_task(void)
 	cpu_mask = cpus_addr(mm->cpu_vm_mask)[0] & ~(1 << smp_processor_id());
 	local_flush_tlb();
 	if (cpu_mask)
-		voyager_flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
+		voyager_flush_tlb_others(cpu_mask, mm, TLB_FLUSH_ALL);
 
 	preempt_enable();
 }
@@ -923,7 +922,7 @@ void flush_tlb_mm(struct mm_struct *mm)
 			leave_mm(smp_processor_id());
 	}
 	if (cpu_mask)
-		voyager_flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
+		voyager_flush_tlb_others(cpu_mask, mm, TLB_FLUSH_ALL);
 
 	preempt_enable();
 }
diff --git a/arch/x86/mm/boot_ioremap_32.c b/arch/x86/mm/boot_ioremap_32.c
index f14da2a53ece..b20f74a2770f 100644
--- a/arch/x86/mm/boot_ioremap_32.c
+++ b/arch/x86/mm/boot_ioremap_32.c
@@ -57,7 +57,7 @@ static void __boot_ioremap(unsigned long phys_addr, unsigned long nrpages,
 	pte = boot_vaddr_to_pte(virtual_source);
 	for (i=0; i < nrpages; i++, phys_addr += PAGE_SIZE, pte++) {
 		set_pte(pte, pfn_pte(phys_addr>>PAGE_SHIFT, PAGE_KERNEL));
-		__flush_tlb_one(&vaddr[i*PAGE_SIZE]);
+		__flush_tlb_one((unsigned long) &vaddr[i*PAGE_SIZE]);
 	}
 }
 
diff --git a/include/asm-x86/cpufeature.h b/include/asm-x86/cpufeature.h
index 4c7875554d01..acbf6681740d 100644
--- a/include/asm-x86/cpufeature.h
+++ b/include/asm-x86/cpufeature.h
@@ -163,6 +163,12 @@
 #define cpu_has_clflush		boot_cpu_has(X86_FEATURE_CLFLSH)
 #define cpu_has_bts		boot_cpu_has(X86_FEATURE_BTS)
 
+#if defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_64)
+# define cpu_has_invlpg		1
+#else
+# define cpu_has_invlpg		(boot_cpu_data.x86 > 3)
+#endif
+
 #ifdef CONFIG_X86_64
 
 #undef  cpu_has_vme
@@ -183,6 +189,9 @@
 #undef  cpu_has_centaur_mcr
 #define cpu_has_centaur_mcr	0
 
+#undef  cpu_has_pge
+#define cpu_has_pge		1
+
 #endif /* CONFIG_X86_64 */
 
 #endif /* _ASM_X86_CPUFEATURE_H */
diff --git a/include/asm-x86/tlbflush_32.h b/include/asm-x86/tlbflush_32.h
index 2bd5b95e2048..9e07cc8f2d94 100644
--- a/include/asm-x86/tlbflush_32.h
+++ b/include/asm-x86/tlbflush_32.h
@@ -1,8 +1,11 @@
-#ifndef _I386_TLBFLUSH_H
-#define _I386_TLBFLUSH_H
+#ifndef _X86_TLBFLUSH_H
+#define _X86_TLBFLUSH_H
 
 #include <linux/mm.h>
+#include <linux/sched.h>
+
 #include <asm/processor.h>
+#include <asm/system.h>
 
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
@@ -12,62 +15,41 @@
 #define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
 #endif
 
-#define __native_flush_tlb()						\
-	do {								\
-		unsigned int tmpreg;					\
-									\
-		__asm__ __volatile__(					\
-			"movl %%cr3, %0;              \n"		\
-			"movl %0, %%cr3;  # flush TLB \n"		\
-			: "=r" (tmpreg)					\
-			:: "memory");					\
-	} while (0)
+static inline void __native_flush_tlb(void)
+{
+	write_cr3(read_cr3());
+}
 
-/*
- * Global pages have to be flushed a bit differently. Not a real
- * performance problem because this does not happen often.
- */
-#define __native_flush_tlb_global()					\
-	do {								\
-		unsigned int tmpreg, cr4, cr4_orig;			\
-									\
-		__asm__ __volatile__(					\
-			"movl %%cr4, %2;  # turn off PGE     \n"	\
-			"movl %2, %1;                        \n"	\
-			"andl %3, %1;                        \n"	\
-			"movl %1, %%cr4;                     \n"	\
-			"movl %%cr3, %0;                     \n"	\
-			"movl %0, %%cr3;  # flush TLB        \n"	\
-			"movl %2, %%cr4;  # turn PGE back on \n"	\
-			: "=&r" (tmpreg), "=&r" (cr4), "=&r" (cr4_orig)	\
-			: "i" (~X86_CR4_PGE)				\
-			: "memory");					\
-	} while (0)
-
-#define __native_flush_tlb_single(addr) 				\
-	__asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory")
-
-# define __flush_tlb_all()						\
-	do {								\
-		if (cpu_has_pge)					\
-			__flush_tlb_global();				\
-		else							\
-			__flush_tlb();					\
-	} while (0)
-
-#define cpu_has_invlpg	(boot_cpu_data.x86 > 3)
-
-#ifdef CONFIG_X86_INVLPG
-# define __flush_tlb_one(addr) __flush_tlb_single(addr)
-#else
-# define __flush_tlb_one(addr)						\
-	do {								\
-		if (cpu_has_invlpg)					\
-			__flush_tlb_single(addr);			\
-		else							\
-			__flush_tlb();					\
-	} while (0)
-#endif
+static inline void __native_flush_tlb_global(void)
+{
+	unsigned long cr4 = read_cr4();
+
+	/* clear PGE */
+	write_cr4(cr4 & ~X86_CR4_PGE);
+	/* write old PGE again and flush TLBs */
+	write_cr4(cr4);
+}
+
+static inline void __native_flush_tlb_single(unsigned long addr)
+{
+	__asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory");
+}
+
+static inline void __flush_tlb_all(void)
+{
+	if (cpu_has_pge)
+		__flush_tlb_global();
+	else
+		__flush_tlb();
+}
+
+static inline void __flush_tlb_one(unsigned long addr)
+{
+	if (cpu_has_invlpg)
+		__flush_tlb_single(addr);
+	else
+		__flush_tlb();
+}
 
 /*
  * TLB flushing:
@@ -86,11 +68,8 @@
 
 #define TLB_FLUSH_ALL	0xffffffff
 
-
 #ifndef CONFIG_SMP
 
-#include <linux/sched.h>
-
 #define flush_tlb() __flush_tlb()
 #define flush_tlb_all() __flush_tlb_all()
 #define local_flush_tlb() __flush_tlb()
@@ -102,21 +81,22 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
 }
 
 static inline void flush_tlb_page(struct vm_area_struct *vma,
-	unsigned long addr)
+				  unsigned long addr)
 {
 	if (vma->vm_mm == current->active_mm)
 		__flush_tlb_one(addr);
 }
 
 static inline void flush_tlb_range(struct vm_area_struct *vma,
-	unsigned long start, unsigned long end)
+				   unsigned long start, unsigned long end)
 {
 	if (vma->vm_mm == current->active_mm)
 		__flush_tlb();
 }
 
 static inline void native_flush_tlb_others(const cpumask_t *cpumask,
-					   struct mm_struct *mm, unsigned long va)
+					   struct mm_struct *mm,
+					   unsigned long va)
 {
 }
 
@@ -124,8 +104,7 @@ static inline void native_flush_tlb_others(const cpumask_t *cpumask,
 
 #include <asm/smp.h>
 
-#define local_flush_tlb() \
-	__flush_tlb()
+#define local_flush_tlb() __flush_tlb()
 
 extern void flush_tlb_all(void);
 extern void flush_tlb_current_task(void);
@@ -134,7 +113,8 @@ extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
 
 #define flush_tlb()	flush_tlb_current_task()
 
-static inline void flush_tlb_range(struct vm_area_struct * vma, unsigned long start, unsigned long end)
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+				   unsigned long start, unsigned long end)
 {
 	flush_tlb_mm(vma->vm_mm);
 }
@@ -152,17 +132,17 @@ struct tlb_state
 	char __cacheline_padding[L1_CACHE_BYTES-8];
 };
 DECLARE_PER_CPU(struct tlb_state, cpu_tlbstate);
+
 #endif	/* SMP */
 
 #ifndef CONFIG_PARAVIRT
-#define flush_tlb_others(mask, mm, va)		\
-	native_flush_tlb_others(&mask, mm, va)
+#define flush_tlb_others(mask, mm, va)	native_flush_tlb_others(&mask, mm, va)
 #endif
 
 static inline void flush_tlb_kernel_range(unsigned long start,
-					unsigned long end)
+					  unsigned long end)
 {
 	flush_tlb_all();
 }
 
-#endif /* _I386_TLBFLUSH_H */
+#endif /* _X86_TLBFLUSH_H */
diff --git a/include/asm-x86/tlbflush_64.h b/include/asm-x86/tlbflush_64.h
index 7731fd23d572..0bed440ba9fe 100644
--- a/include/asm-x86/tlbflush_64.h
+++ b/include/asm-x86/tlbflush_64.h
@@ -1,26 +1,55 @@
-#ifndef _X8664_TLBFLUSH_H
-#define _X8664_TLBFLUSH_H
+#ifndef _X86_TLBFLUSH_H
+#define _X86_TLBFLUSH_H
 
 #include <linux/mm.h>
 #include <linux/sched.h>
+
 #include <asm/processor.h>
 #include <asm/system.h>
 
-static inline void __flush_tlb(void)
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
+#define __flush_tlb() __native_flush_tlb()
+#define __flush_tlb_global() __native_flush_tlb_global()
+#define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
+#endif
+
+static inline void __native_flush_tlb(void)
 {
 	write_cr3(read_cr3());
 }
 
-static inline void __flush_tlb_all(void)
+static inline void __native_flush_tlb_global(void)
 {
 	unsigned long cr4 = read_cr4();
-	write_cr4(cr4 & ~X86_CR4_PGE);	/* clear PGE */
-	write_cr4(cr4);			/* write old PGE again and flush TLBs */
+
+	/* clear PGE */
+	write_cr4(cr4 & ~X86_CR4_PGE);
+	/* write old PGE again and flush TLBs */
+	write_cr4(cr4);
 }
 
-#define __flush_tlb_one(addr) \
-	__asm__ __volatile__("invlpg (%0)" :: "r" (addr) : "memory")
+static inline void __native_flush_tlb_single(unsigned long addr)
+{
+	__asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory");
+}
+
+static inline void __flush_tlb_all(void)
+{
+	if (cpu_has_pge)
+		__flush_tlb_global();
+	else
+		__flush_tlb();
+}
 
+static inline void __flush_tlb_one(unsigned long addr)
+{
+	if (cpu_has_invlpg)
+		__flush_tlb_single(addr);
+	else
+		__flush_tlb();
+}
 
 /*
  * TLB flushing:
@@ -37,6 +66,8 @@ static inline void __flush_tlb_all(void)
  * range a few INVLPGs in a row are a win.
  */
 
+#define TLB_FLUSH_ALL	-1ULL
+
 #ifndef CONFIG_SMP
 
 #define flush_tlb() __flush_tlb()
@@ -50,25 +81,30 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
 }
 
 static inline void flush_tlb_page(struct vm_area_struct *vma,
-	unsigned long addr)
+				  unsigned long addr)
 {
 	if (vma->vm_mm == current->active_mm)
 		__flush_tlb_one(addr);
 }
 
 static inline void flush_tlb_range(struct vm_area_struct *vma,
-	unsigned long start, unsigned long end)
+				   unsigned long start, unsigned long end)
 {
 	if (vma->vm_mm == current->active_mm)
 		__flush_tlb();
 }
 
-#else
+static inline void native_flush_tlb_others(const cpumask_t *cpumask,
+					   struct mm_struct *mm,
+					   unsigned long va)
+{
+}
+
+#else  /* SMP */
 
 #include <asm/smp.h>
 
-#define local_flush_tlb() \
-	__flush_tlb()
+#define local_flush_tlb() __flush_tlb()
 
 extern void flush_tlb_all(void);
 extern void flush_tlb_current_task(void);
@@ -77,24 +113,28 @@ extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
 
 #define flush_tlb()	flush_tlb_current_task()
 
-static inline void flush_tlb_range(struct vm_area_struct * vma, unsigned long start, unsigned long end)
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+				   unsigned long start, unsigned long end)
 {
 	flush_tlb_mm(vma->vm_mm);
 }
 
+void native_flush_tlb_others(const cpumask_t *cpumask, struct mm_struct *mm,
+			     unsigned long va);
+
 #define TLBSTATE_OK	1
 #define TLBSTATE_LAZY	2
 
-/* Roughly an IPI every 20MB with 4k pages for freeing page table
-   ranges. Cost is about 42k of memory for each CPU. */
-#define ARCH_FREE_PTE_NR 5350	
+#endif	/* SMP */
 
+#ifndef CONFIG_PARAVIRT
+#define flush_tlb_others(mask, mm, va)	native_flush_tlb_others(&mask, mm, va)
 #endif
 
 static inline void flush_tlb_kernel_range(unsigned long start,
-					unsigned long end)
+					  unsigned long end)
 {
 	flush_tlb_all();
 }
 
-#endif /* _X8664_TLBFLUSH_H */
+#endif /* _X86_TLBFLUSH_H */
-- 
cgit v1.2.3-59-g8ed1b


From 64883ab0e3386d72112a9091d886352a7b4b8bf6 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:35 +0100
Subject: x86: cleanup mpspec variants

Bring the mpspec variants into sync to prepare merging and
paravirt support.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/mpparse_32.c             |  18 +--
 arch/x86/mach-visws/mpparse.c            |  16 +--
 include/asm-x86/mach-bigsmp/mach_apic.h  |  12 +-
 include/asm-x86/mach-default/mach_apic.h |  18 +--
 include/asm-x86/mach-es7000/mach_apic.h  |  10 +-
 include/asm-x86/mach-numaq/mach_apic.h   |  10 +-
 include/asm-x86/mach-summit/mach_apic.h  |  18 +--
 include/asm-x86/mpspec_32.h              |  49 ++++----
 include/asm-x86/mpspec_64.h              | 196 ++++---------------------------
 include/asm-x86/mpspec_def.h             |  87 ++++++++------
 10 files changed, 148 insertions(+), 286 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/mpparse_32.c b/arch/x86/kernel/mpparse_32.c
index 7a05a7f6099a..22fc8d7dec11 100644
--- a/arch/x86/kernel/mpparse_32.c
+++ b/arch/x86/kernel/mpparse_32.c
@@ -258,7 +258,7 @@ static void __init MP_ioapic_info (struct mpc_config_ioapic *m)
 	if (!(m->mpc_flags & MPC_APIC_USABLE))
 		return;
 
-	printk(KERN_INFO "I/O APIC #%d Version %d at 0x%lX.\n",
+	printk(KERN_INFO "I/O APIC #%d Version %d at 0x%X.\n",
 		m->mpc_apicid, m->mpc_apicver, m->mpc_apicaddr);
 	if (nr_ioapics >= MAX_IO_APICS) {
 		printk(KERN_CRIT "Max # of I/O APICs (%d) exceeded (found %d).\n",
@@ -405,9 +405,9 @@ static int __init smp_read_mpc(struct mp_config_table *mpc)
 
 	mps_oem_check(mpc, oem, str);
 
-	printk("APIC at: 0x%lX\n",mpc->mpc_lapic);
+	printk("APIC at: 0x%X\n", mpc->mpc_lapic);
 
-	/* 
+	/*
 	 * Save the local APIC address (it might be non-default) -- but only
 	 * if we're not using ACPI.
 	 */
@@ -918,14 +918,14 @@ void __init mp_register_ioapic(u8 id, u32 address, u32 gsi_base)
 	 */
 	mp_ioapic_routing[idx].apic_id = mp_ioapics[idx].mpc_apicid;
 	mp_ioapic_routing[idx].gsi_base = gsi_base;
-	mp_ioapic_routing[idx].gsi_end = gsi_base + 
+	mp_ioapic_routing[idx].gsi_end = gsi_base +
 		io_apic_get_redir_entries(idx);
 
-	printk("IOAPIC[%d]: apic_id %d, version %d, address 0x%lx, "
-		"GSI %d-%d\n", idx, mp_ioapics[idx].mpc_apicid, 
-		mp_ioapics[idx].mpc_apicver, mp_ioapics[idx].mpc_apicaddr,
-		mp_ioapic_routing[idx].gsi_base,
-		mp_ioapic_routing[idx].gsi_end);
+	printk("IOAPIC[%d]: apic_id %d, version %d, address 0x%x, "
+	       "GSI %d-%d\n", idx, mp_ioapics[idx].mpc_apicid,
+	       mp_ioapics[idx].mpc_apicver, mp_ioapics[idx].mpc_apicaddr,
+	       mp_ioapic_routing[idx].gsi_base,
+	       mp_ioapic_routing[idx].gsi_end);
 }
 
 void __init
diff --git a/arch/x86/mach-visws/mpparse.c b/arch/x86/mach-visws/mpparse.c
index f3c74fab8b95..2a8456a1f44f 100644
--- a/arch/x86/mach-visws/mpparse.c
+++ b/arch/x86/mach-visws/mpparse.c
@@ -36,19 +36,19 @@ unsigned int __initdata maxcpus = NR_CPUS;
 
 static void __init MP_processor_info (struct mpc_config_processor *m)
 {
- 	int ver, logical_apicid;
+	int ver, logical_apicid;
 	physid_mask_t apic_cpus;
- 	
+
 	if (!(m->mpc_cpuflag & CPU_ENABLED))
 		return;
 
 	logical_apicid = m->mpc_apicid;
-	printk(KERN_INFO "%sCPU #%d %ld:%ld APIC version %d\n",
-		m->mpc_cpuflag & CPU_BOOTPROCESSOR ? "Bootup " : "",
-		m->mpc_apicid,
-		(m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
-		(m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
-		m->mpc_apicver);
+	printk(KERN_INFO "%sCPU #%d %u:%u APIC version %d\n",
+	       m->mpc_cpuflag & CPU_BOOTPROCESSOR ? "Bootup " : "",
+	       m->mpc_apicid,
+	       (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
+	       (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
+	       m->mpc_apicver);
 
 	if (m->mpc_cpuflag & CPU_BOOTPROCESSOR)
 		boot_cpu_physical_apicid = m->mpc_apicid;
diff --git a/include/asm-x86/mach-bigsmp/mach_apic.h b/include/asm-x86/mach-bigsmp/mach_apic.h
index ebd319f838ab..6df235e8ea91 100644
--- a/include/asm-x86/mach-bigsmp/mach_apic.h
+++ b/include/asm-x86/mach-bigsmp/mach_apic.h
@@ -110,13 +110,13 @@ static inline int cpu_to_logical_apicid(int cpu)
 }
 
 static inline int mpc_apic_id(struct mpc_config_processor *m,
-			struct mpc_config_translation *translation_record)
+			      struct mpc_config_translation *translation_record)
 {
-	printk("Processor #%d %ld:%ld APIC version %d\n",
-	        m->mpc_apicid,
-	        (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
-	        (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
-	        m->mpc_apicver);
+	printk("Processor #%d %u:%u APIC version %d\n",
+	       m->mpc_apicid,
+	       (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
+	       (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
+	       m->mpc_apicver);
 	return m->mpc_apicid;
 }
 
diff --git a/include/asm-x86/mach-default/mach_apic.h b/include/asm-x86/mach-default/mach_apic.h
index 6db1c3babe9a..e3c2c1012c1c 100644
--- a/include/asm-x86/mach-default/mach_apic.h
+++ b/include/asm-x86/mach-default/mach_apic.h
@@ -89,15 +89,15 @@ static inline physid_mask_t apicid_to_cpu_present(int phys_apicid)
 	return physid_mask_of_physid(phys_apicid);
 }
 
-static inline int mpc_apic_id(struct mpc_config_processor *m, 
-			struct mpc_config_translation *translation_record)
-{
-	printk("Processor #%d %ld:%ld APIC version %d\n",
-			m->mpc_apicid,
-			(m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
-			(m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
-			m->mpc_apicver);
-	return (m->mpc_apicid);
+static inline int mpc_apic_id(struct mpc_config_processor *m,
+			      struct mpc_config_translation *translation_record)
+{
+	printk("Processor #%d %u:%u APIC version %d\n",
+	       m->mpc_apicid,
+	       (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
+	       (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
+	       m->mpc_apicver);
+	return m->mpc_apicid;
 }
 
 static inline void setup_portio_remap(void)
diff --git a/include/asm-x86/mach-es7000/mach_apic.h b/include/asm-x86/mach-es7000/mach_apic.h
index caec64be516d..d23011fdf454 100644
--- a/include/asm-x86/mach-es7000/mach_apic.h
+++ b/include/asm-x86/mach-es7000/mach_apic.h
@@ -131,11 +131,11 @@ static inline int cpu_to_logical_apicid(int cpu)
 
 static inline int mpc_apic_id(struct mpc_config_processor *m, struct mpc_config_translation *unused)
 {
-	printk("Processor #%d %ld:%ld APIC version %d\n",
-	        m->mpc_apicid,
-	        (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
-	        (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
-	        m->mpc_apicver);
+	printk("Processor #%d %u:%u APIC version %d\n",
+	       m->mpc_apicid,
+	       (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
+	       (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
+	       m->mpc_apicver);
 	return (m->mpc_apicid);
 }
 
diff --git a/include/asm-x86/mach-numaq/mach_apic.h b/include/asm-x86/mach-numaq/mach_apic.h
index 5e5e7dd2692e..17e183bd39c1 100644
--- a/include/asm-x86/mach-numaq/mach_apic.h
+++ b/include/asm-x86/mach-numaq/mach_apic.h
@@ -101,11 +101,11 @@ static inline int mpc_apic_id(struct mpc_config_processor *m,
 	int quad = translation_record->trans_quad;
 	int logical_apicid = generate_logical_apicid(quad, m->mpc_apicid);
 
-	printk("Processor #%d %ld:%ld APIC version %d (quad %d, apic %d)\n",
-			m->mpc_apicid,
-			(m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
-			(m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
-			m->mpc_apicver, quad, logical_apicid);
+	printk("Processor #%d %u:%u APIC version %d (quad %d, apic %d)\n",
+	       m->mpc_apicid,
+	       (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
+	       (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
+	       m->mpc_apicver, quad, logical_apicid);
 	return logical_apicid;
 }
 
diff --git a/include/asm-x86/mach-summit/mach_apic.h b/include/asm-x86/mach-summit/mach_apic.h
index 732f776aab8e..062c97f6100b 100644
--- a/include/asm-x86/mach-summit/mach_apic.h
+++ b/include/asm-x86/mach-summit/mach_apic.h
@@ -126,15 +126,15 @@ static inline physid_mask_t apicid_to_cpu_present(int apicid)
 	return physid_mask_of_physid(0);
 }
 
-static inline int mpc_apic_id(struct mpc_config_processor *m, 
-			struct mpc_config_translation *translation_record)
-{
-	printk("Processor #%d %ld:%ld APIC version %d\n",
-			m->mpc_apicid,
-			(m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
-			(m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
-			m->mpc_apicver);
-	return (m->mpc_apicid);
+static inline int mpc_apic_id(struct mpc_config_processor *m,
+			      struct mpc_config_translation *translation_record)
+{
+	printk("Processor #%d %u:%u APIC version %d\n",
+	       m->mpc_apicid,
+	       (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
+	       (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
+	       m->mpc_apicver);
+	return m->mpc_apicid;
 }
 
 static inline void setup_portio_remap(void)
diff --git a/include/asm-x86/mpspec_32.h b/include/asm-x86/mpspec_32.h
index f21349399d14..bb73185e6a7d 100644
--- a/include/asm-x86/mpspec_32.h
+++ b/include/asm-x86/mpspec_32.h
@@ -1,34 +1,37 @@
 #ifndef __ASM_MPSPEC_H
 #define __ASM_MPSPEC_H
 
-#include <linux/cpumask.h>
 #include <asm/mpspec_def.h>
 #include <mach_mpspec.h>
 
-extern int mp_bus_id_to_type [MAX_MP_BUSSES];
-extern int mp_bus_id_to_node [MAX_MP_BUSSES];
-extern int mp_bus_id_to_local [MAX_MP_BUSSES];
-extern int quad_local_to_mp_bus_id [NR_CPUS/4][4];
-extern int mp_bus_id_to_pci_bus [MAX_MP_BUSSES];
+extern int mp_bus_id_to_type[MAX_MP_BUSSES];
+extern int mp_bus_id_to_node[MAX_MP_BUSSES];
+extern int mp_bus_id_to_local[MAX_MP_BUSSES];
+extern int quad_local_to_mp_bus_id[NR_CPUS/4][4];
 
 extern unsigned int def_to_bigsmp;
+extern int apic_version[MAX_APICS];
+extern int pic_mode;
+
+extern int mp_bus_id_to_pci_bus[MAX_MP_BUSSES];
+
 extern unsigned int boot_cpu_physical_apicid;
 extern int smp_found_config;
-extern void find_smp_config (void);
-extern void get_smp_config (void);
 extern int nr_ioapics;
-extern int apic_version [MAX_APICS];
 extern int mp_irq_entries;
-extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES];
+extern struct mpc_config_intsrc mp_irqs[MAX_IRQ_SOURCES];
 extern int mpc_default_type;
 extern unsigned long mp_lapic_addr;
-extern int pic_mode;
+
+extern void find_smp_config (void);
+extern void get_smp_config (void);
 
 #ifdef CONFIG_ACPI
 extern void mp_register_lapic (u8 id, u8 enabled);
 extern void mp_register_lapic_address (u64 address);
 extern void mp_register_ioapic (u8 id, u32 address, u32 gsi_base);
-extern void mp_override_legacy_irq (u8 bus_irq, u8 polarity, u8 trigger, u32 gsi);
+extern void mp_override_legacy_irq (u8 bus_irq, u8 polarity, u8 trigger,
+				    u32 gsi);
 extern void mp_config_acpi_legacy_irqs (void);
 extern int mp_register_gsi (u32 gsi, int edge_level, int active_high_low);
 #endif /* CONFIG_ACPI */
@@ -50,7 +53,7 @@ typedef struct physid_mask physid_mask_t;
 #define physids_and(dst, src1, src2)		bitmap_and((dst).mask, (src1).mask, (src2).mask, MAX_APICS)
 #define physids_or(dst, src1, src2)		bitmap_or((dst).mask, (src1).mask, (src2).mask, MAX_APICS)
 #define physids_clear(map)			bitmap_zero((map).mask, MAX_APICS)
-#define physids_complement(dst, src)		bitmap_complement((dst).mask,(src).mask, MAX_APICS)
+#define physids_complement(dst, src)		bitmap_complement((dst).mask, (src).mask, MAX_APICS)
 #define physids_empty(map)			bitmap_empty((map).mask, MAX_APICS)
 #define physids_equal(map1, map2)		bitmap_equal((map1).mask, (map2).mask, MAX_APICS)
 #define physids_weight(map)			bitmap_weight((map).mask, MAX_APICS)
@@ -58,18 +61,18 @@ typedef struct physid_mask physid_mask_t;
 #define physids_shift_left(d, s, n)		bitmap_shift_left((d).mask, (s).mask, n, MAX_APICS)
 #define physids_coerce(map)			((map).mask[0])
 
-#define physids_promote(physids)						\
-	({									\
-		physid_mask_t __physid_mask = PHYSID_MASK_NONE;			\
-		__physid_mask.mask[0] = physids;				\
-		__physid_mask;							\
+#define physids_promote(physids)					\
+	({								\
+		physid_mask_t __physid_mask = PHYSID_MASK_NONE;		\
+		__physid_mask.mask[0] = physids;			\
+		__physid_mask;						\
 	})
 
-#define physid_mask_of_physid(physid)						\
-	({									\
-		physid_mask_t __physid_mask = PHYSID_MASK_NONE;			\
-		physid_set(physid, __physid_mask);				\
-		__physid_mask;							\
+#define physid_mask_of_physid(physid)					\
+	({								\
+		physid_mask_t __physid_mask = PHYSID_MASK_NONE;		\
+		physid_set(physid, __physid_mask);			\
+		__physid_mask;						\
 	})
 
 #define PHYSID_MASK_ALL		{ {[0 ... PHYSID_ARRAY_SIZE-1] = ~0UL} }
diff --git a/include/asm-x86/mpspec_64.h b/include/asm-x86/mpspec_64.h
index 017fddb61dc5..16eab20667cd 100644
--- a/include/asm-x86/mpspec_64.h
+++ b/include/asm-x86/mpspec_64.h
@@ -1,189 +1,35 @@
 #ifndef __ASM_MPSPEC_H
 #define __ASM_MPSPEC_H
 
-/*
- * Structure definitions for SMP machines following the
- * Intel Multiprocessing Specification 1.1 and 1.4.
- */
-
-/*
- * This tag identifies where the SMP configuration
- * information is. 
- */
- 
-#define SMP_MAGIC_IDENT	(('_'<<24)|('P'<<16)|('M'<<8)|'_')
-
-/*
- * A maximum of 255 APICs with the current APIC ID architecture.
- */
-#define MAX_APICS 255
-
-struct intel_mp_floating
-{
-	char mpf_signature[4];		/* "_MP_" 			*/
-	unsigned int mpf_physptr;	/* Configuration table address	*/
-	unsigned char mpf_length;	/* Our length (paragraphs)	*/
-	unsigned char mpf_specification;/* Specification version	*/
-	unsigned char mpf_checksum;	/* Checksum (makes sum 0)	*/
-	unsigned char mpf_feature1;	/* Standard or configuration ? 	*/
-	unsigned char mpf_feature2;	/* Bit7 set for IMCR|PIC	*/
-	unsigned char mpf_feature3;	/* Unused (0)			*/
-	unsigned char mpf_feature4;	/* Unused (0)			*/
-	unsigned char mpf_feature5;	/* Unused (0)			*/
-};
-
-struct mp_config_table
-{
-	char mpc_signature[4];
-#define MPC_SIGNATURE "PCMP"
-	unsigned short mpc_length;	/* Size of table */
-	char  mpc_spec;			/* 0x01 */
-	char  mpc_checksum;
-	char  mpc_oem[8];
-	char  mpc_productid[12];
-	unsigned int mpc_oemptr;	/* 0 if not present */
-	unsigned short mpc_oemsize;	/* 0 if not present */
-	unsigned short mpc_oemcount;
-	unsigned int mpc_lapic;	/* APIC address */
-	unsigned int reserved;
-};
-
-/* Followed by entries */
-
-#define	MP_PROCESSOR	0
-#define	MP_BUS		1
-#define	MP_IOAPIC	2
-#define	MP_INTSRC	3
-#define	MP_LINTSRC	4
-
-struct mpc_config_processor
-{
-	unsigned char mpc_type;
-	unsigned char mpc_apicid;	/* Local APIC number */
-	unsigned char mpc_apicver;	/* Its versions */
-	unsigned char mpc_cpuflag;
-#define CPU_ENABLED		1	/* Processor is available */
-#define CPU_BOOTPROCESSOR	2	/* Processor is the BP */
-	unsigned int mpc_cpufeature;		
-#define CPU_STEPPING_MASK 0x0F
-#define CPU_MODEL_MASK	0xF0
-#define CPU_FAMILY_MASK	0xF00
-	unsigned int mpc_featureflag;	/* CPUID feature value */
-	unsigned int mpc_reserved[2];
-};
-
-struct mpc_config_bus
-{
-	unsigned char mpc_type;
-	unsigned char mpc_busid;
-	unsigned char mpc_bustype[6];
-};
-
-/* List of Bus Type string values, Intel MP Spec. */
-#define BUSTYPE_EISA	"EISA"
-#define BUSTYPE_ISA	"ISA"
-#define BUSTYPE_INTERN	"INTERN"	/* Internal BUS */
-#define BUSTYPE_MCA	"MCA"
-#define BUSTYPE_VL	"VL"		/* Local bus */
-#define BUSTYPE_PCI	"PCI"
-#define BUSTYPE_PCMCIA	"PCMCIA"
-#define BUSTYPE_CBUS	"CBUS"
-#define BUSTYPE_CBUSII	"CBUSII"
-#define BUSTYPE_FUTURE	"FUTURE"
-#define BUSTYPE_MBI	"MBI"
-#define BUSTYPE_MBII	"MBII"
-#define BUSTYPE_MPI	"MPI"
-#define BUSTYPE_MPSA	"MPSA"
-#define BUSTYPE_NUBUS	"NUBUS"
-#define BUSTYPE_TC	"TC"
-#define BUSTYPE_VME	"VME"
-#define BUSTYPE_XPRESS	"XPRESS"
-
-struct mpc_config_ioapic
-{
-	unsigned char mpc_type;
-	unsigned char mpc_apicid;
-	unsigned char mpc_apicver;
-	unsigned char mpc_flags;
-#define MPC_APIC_USABLE		0x01
-	unsigned int mpc_apicaddr;
-};
-
-struct mpc_config_intsrc
-{
-	unsigned char mpc_type;
-	unsigned char mpc_irqtype;
-	unsigned short mpc_irqflag;
-	unsigned char mpc_srcbus;
-	unsigned char mpc_srcbusirq;
-	unsigned char mpc_dstapic;
-	unsigned char mpc_dstirq;
-};
-
-enum mp_irq_source_types {
-	mp_INT = 0,
-	mp_NMI = 1,
-	mp_SMI = 2,
-	mp_ExtINT = 3
-};
-
-#define MP_IRQDIR_DEFAULT	0
-#define MP_IRQDIR_HIGH		1
-#define MP_IRQDIR_LOW		3
-
-
-struct mpc_config_lintsrc
-{
-	unsigned char mpc_type;
-	unsigned char mpc_irqtype;
-	unsigned short mpc_irqflag;
-	unsigned char mpc_srcbusid;
-	unsigned char mpc_srcbusirq;
-	unsigned char mpc_destapic;	
-#define MP_APIC_ALL	0xFF
-	unsigned char mpc_destapiclint;
-};
-
-/*
- *	Default configurations
- *
- *	1	2 CPU ISA 82489DX
- *	2	2 CPU EISA 82489DX neither IRQ 0 timer nor IRQ 13 DMA chaining
- *	3	2 CPU EISA 82489DX
- *	4	2 CPU MCA 82489DX
- *	5	2 CPU ISA+PCI
- *	6	2 CPU EISA+PCI
- *	7	2 CPU MCA+PCI
- */
+#include <asm/mpspec_def.h>
 
 #define MAX_MP_BUSSES 256
 /* Each PCI slot may be a combo card with its own bus.  4 IRQ pins per slot. */
 #define MAX_IRQ_SOURCES (MAX_MP_BUSSES * 4)
 extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
-extern int mp_bus_id_to_pci_bus [MAX_MP_BUSSES];
+
+extern int mp_bus_id_to_pci_bus[MAX_MP_BUSSES];
 
 extern unsigned int boot_cpu_physical_apicid;
 extern int smp_found_config;
-extern void find_smp_config (void);
-extern void get_smp_config (void);
 extern int nr_ioapics;
-extern unsigned char apic_version [MAX_APICS];
 extern int mp_irq_entries;
-extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES];
+extern struct mpc_config_intsrc mp_irqs[MAX_IRQ_SOURCES];
 extern int mpc_default_type;
 extern unsigned long mp_lapic_addr;
 
+extern void find_smp_config (void);
+extern void get_smp_config (void);
+
 #ifdef CONFIG_ACPI
 extern void mp_register_lapic (u8 id, u8 enabled);
 extern void mp_register_lapic_address (u64 address);
-
 extern void mp_register_ioapic (u8 id, u32 address, u32 gsi_base);
-extern void mp_override_legacy_irq (u8 bus_irq, u8 polarity, u8 trigger, u32 gsi);
+extern void mp_override_legacy_irq (u8 bus_irq, u8 polarity, u8 trigger,
+				    u32 gsi);
 extern void mp_config_acpi_legacy_irqs (void);
-extern int mp_register_gsi (u32 gsi, int triggering, int polarity);
-#endif
-
-extern int using_apic_timer;
+extern int mp_register_gsi (u32 gsi, int edge_level, int active_high_low);
+#endif /* CONFIG_ACPI */
 
 #define PHYSID_ARRAY_SIZE	BITS_TO_LONGS(MAX_APICS)
 
@@ -210,18 +56,18 @@ typedef struct physid_mask physid_mask_t;
 #define physids_shift_left(d, s, n)		bitmap_shift_left((d).mask, (s).mask, n, MAX_APICS)
 #define physids_coerce(map)			((map).mask[0])
 
-#define physids_promote(physids)						\
-	({									\
-		physid_mask_t __physid_mask = PHYSID_MASK_NONE;			\
-		__physid_mask.mask[0] = physids;				\
-		__physid_mask;							\
+#define physids_promote(physids)					\
+	({								\
+		physid_mask_t __physid_mask = PHYSID_MASK_NONE;		\
+		__physid_mask.mask[0] = physids;			\
+		__physid_mask;						\
 	})
 
-#define physid_mask_of_physid(physid)						\
-	({									\
-		physid_mask_t __physid_mask = PHYSID_MASK_NONE;			\
-		physid_set(physid, __physid_mask);				\
-		__physid_mask;							\
+#define physid_mask_of_physid(physid)					\
+	({								\
+		physid_mask_t __physid_mask = PHYSID_MASK_NONE;		\
+		physid_set(physid, __physid_mask);			\
+		__physid_mask;						\
 	})
 
 #define PHYSID_MASK_ALL		{ {[0 ... PHYSID_ARRAY_SIZE-1] = ~0UL} }
diff --git a/include/asm-x86/mpspec_def.h b/include/asm-x86/mpspec_def.h
index 13bafb16e7af..3504617fe648 100644
--- a/include/asm-x86/mpspec_def.h
+++ b/include/asm-x86/mpspec_def.h
@@ -8,52 +8,68 @@
 
 /*
  * This tag identifies where the SMP configuration
- * information is. 
+ * information is.
  */
- 
+
 #define SMP_MAGIC_IDENT	(('_'<<24)|('P'<<16)|('M'<<8)|'_')
 
-#define MAX_MPC_ENTRY 1024
-#define MAX_APICS      256
+#ifdef CONFIG_X86_32
+# define MAX_MPC_ENTRY 1024
+# define MAX_APICS      256
+#else
+/*
+ * A maximum of 255 APICs with the current APIC ID architecture.
+ */
+# define MAX_APICS 255
+#endif
 
 struct intel_mp_floating
 {
-	char mpf_signature[4];		/* "_MP_" 			*/
-	unsigned long mpf_physptr;	/* Configuration table address	*/
+	char mpf_signature[4];		/* "_MP_"			*/
+	unsigned int mpf_physptr;	/* Configuration table address	*/
 	unsigned char mpf_length;	/* Our length (paragraphs)	*/
 	unsigned char mpf_specification;/* Specification version	*/
 	unsigned char mpf_checksum;	/* Checksum (makes sum 0)	*/
-	unsigned char mpf_feature1;	/* Standard or configuration ? 	*/
+	unsigned char mpf_feature1;	/* Standard or configuration ?	*/
 	unsigned char mpf_feature2;	/* Bit7 set for IMCR|PIC	*/
 	unsigned char mpf_feature3;	/* Unused (0)			*/
 	unsigned char mpf_feature4;	/* Unused (0)			*/
 	unsigned char mpf_feature5;	/* Unused (0)			*/
 };
 
+#define MPC_SIGNATURE "PCMP"
+
 struct mp_config_table
 {
 	char mpc_signature[4];
-#define MPC_SIGNATURE "PCMP"
 	unsigned short mpc_length;	/* Size of table */
 	char  mpc_spec;			/* 0x01 */
 	char  mpc_checksum;
 	char  mpc_oem[8];
 	char  mpc_productid[12];
-	unsigned long mpc_oemptr;	/* 0 if not present */
+	unsigned int mpc_oemptr;	/* 0 if not present */
 	unsigned short mpc_oemsize;	/* 0 if not present */
 	unsigned short mpc_oemcount;
-	unsigned long mpc_lapic;	/* APIC address */
-	unsigned long reserved;
+	unsigned int mpc_lapic;	/* APIC address */
+	unsigned int reserved;
 };
 
 /* Followed by entries */
 
-#define	MP_PROCESSOR	0
-#define	MP_BUS		1
-#define	MP_IOAPIC	2
-#define	MP_INTSRC	3
-#define	MP_LINTSRC	4
-#define	MP_TRANSLATION  192  /* Used by IBM NUMA-Q to describe node locality */
+#define	MP_PROCESSOR		0
+#define	MP_BUS			1
+#define	MP_IOAPIC		2
+#define	MP_INTSRC		3
+#define	MP_LINTSRC		4
+/* Used by IBM NUMA-Q to describe node locality */
+#define	MP_TRANSLATION		192
+
+#define CPU_ENABLED		1	/* Processor is available */
+#define CPU_BOOTPROCESSOR	2	/* Processor is the BP */
+
+#define CPU_STEPPING_MASK	0x000F
+#define CPU_MODEL_MASK		0x00F0
+#define CPU_FAMILY_MASK		0x0F00
 
 struct mpc_config_processor
 {
@@ -61,14 +77,9 @@ struct mpc_config_processor
 	unsigned char mpc_apicid;	/* Local APIC number */
 	unsigned char mpc_apicver;	/* Its versions */
 	unsigned char mpc_cpuflag;
-#define CPU_ENABLED		1	/* Processor is available */
-#define CPU_BOOTPROCESSOR	2	/* Processor is the BP */
-	unsigned long mpc_cpufeature;		
-#define CPU_STEPPING_MASK 0x0F
-#define CPU_MODEL_MASK	0xF0
-#define CPU_FAMILY_MASK	0xF00
-	unsigned long mpc_featureflag;	/* CPUID feature value */
-	unsigned long mpc_reserved[2];
+	unsigned int mpc_cpufeature;
+	unsigned int mpc_featureflag;	/* CPUID feature value */
+	unsigned int mpc_reserved[2];
 };
 
 struct mpc_config_bus
@@ -98,14 +109,15 @@ struct mpc_config_bus
 #define BUSTYPE_VME	"VME"
 #define BUSTYPE_XPRESS	"XPRESS"
 
+#define MPC_APIC_USABLE		0x01
+
 struct mpc_config_ioapic
 {
 	unsigned char mpc_type;
 	unsigned char mpc_apicid;
 	unsigned char mpc_apicver;
 	unsigned char mpc_flags;
-#define MPC_APIC_USABLE		0x01
-	unsigned long mpc_apicaddr;
+	unsigned int mpc_apicaddr;
 };
 
 struct mpc_config_intsrc
@@ -130,6 +142,7 @@ enum mp_irq_source_types {
 #define MP_IRQDIR_HIGH		1
 #define MP_IRQDIR_LOW		3
 
+#define MP_APIC_ALL	0xFF
 
 struct mpc_config_lintsrc
 {
@@ -138,15 +151,15 @@ struct mpc_config_lintsrc
 	unsigned short mpc_irqflag;
 	unsigned char mpc_srcbusid;
 	unsigned char mpc_srcbusirq;
-	unsigned char mpc_destapic;	
-#define MP_APIC_ALL	0xFF
+	unsigned char mpc_destapic;
 	unsigned char mpc_destapiclint;
 };
 
+#define MPC_OEM_SIGNATURE "_OEM"
+
 struct mp_config_oemtable
 {
 	char oem_signature[4];
-#define MPC_OEM_SIGNATURE "_OEM"
 	unsigned short oem_length;	/* Size of table */
 	char  oem_rev;			/* 0x01 */
 	char  oem_checksum;
@@ -155,13 +168,13 @@ struct mp_config_oemtable
 
 struct mpc_config_translation
 {
-        unsigned char mpc_type;
-        unsigned char trans_len;
-        unsigned char trans_type;
-        unsigned char trans_quad;
-        unsigned char trans_global;
-        unsigned char trans_local;
-        unsigned short trans_reserved;
+	unsigned char mpc_type;
+	unsigned char trans_len;
+	unsigned char trans_type;
+	unsigned char trans_quad;
+	unsigned char trans_global;
+	unsigned char trans_local;
+	unsigned short trans_reserved;
 };
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From e3cfe529dd87dd3354789546676fef2e808822e4 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:37 +0100
Subject: x86: cleanup numa_64.c

Clean it up before applying more patches.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/numa_64.c | 213 ++++++++++++++++++++++++++------------------------
 1 file changed, 111 insertions(+), 102 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index e7f3f4e9ec85..4faed6a8f3ae 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -1,7 +1,7 @@
-/* 
+/*
  * Generic VM initialization for x86-64 NUMA setups.
  * Copyright 2002,2003 Andi Kleen, SuSE Labs.
- */ 
+ */
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/string.h>
@@ -24,6 +24,8 @@
 #endif
 
 struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
+EXPORT_SYMBOL(node_data);
+
 bootmem_data_t plat_node_bdata[MAX_NUMNODES];
 
 struct memnode memnode;
@@ -31,16 +33,19 @@ struct memnode memnode;
 unsigned char cpu_to_node[NR_CPUS] __read_mostly = {
 	[0 ... NR_CPUS-1] = NUMA_NO_NODE
 };
+EXPORT_SYMBOL(cpu_to_node);
+
 unsigned char apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
- 	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
+	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
 };
+
 cpumask_t node_to_cpumask[MAX_NUMNODES] __read_mostly;
+EXPORT_SYMBOL(node_to_cpumask);
 
 int numa_off __initdata;
 unsigned long __initdata nodemap_addr;
 unsigned long __initdata nodemap_size;
 
-
 /*
  * Given a shift value, try to populate memnodemap[]
  * Returns :
@@ -48,12 +53,11 @@ unsigned long __initdata nodemap_size;
  * 0 if memnodmap[] too small (of shift too small)
  * -1 if node overlap or lost ram (shift too big)
  */
-static int __init
-populate_memnodemap(const struct bootnode *nodes, int numnodes, int shift)
+static int __init populate_memnodemap(const struct bootnode *nodes,
+				      int numnodes, int shift)
 {
-	int i; 
-	int res = -1;
 	unsigned long addr, end;
+	int i, res = -1;
 
 	memset(memnodemap, 0xff, memnodemapsize);
 	for (i = 0; i < numnodes; i++) {
@@ -70,7 +74,7 @@ populate_memnodemap(const struct bootnode *nodes, int numnodes, int shift)
 			addr += (1UL << shift);
 		} while (addr < end);
 		res = 1;
-	} 
+	}
 	return res;
 }
 
@@ -105,8 +109,8 @@ static int __init allocate_cachealigned_memnodemap(void)
  * The LSB of all start and end addresses in the node map is the value of the
  * maximum possible shift.
  */
-static int __init
-extract_lsb_from_nodes (const struct bootnode *nodes, int numnodes)
+static int __init extract_lsb_from_nodes(const struct bootnode *nodes,
+					 int numnodes)
 {
 	int i, nodes_used = 0;
 	unsigned long start, end;
@@ -141,10 +145,9 @@ int __init compute_hash_shift(struct bootnode *nodes, int numnodes)
 		shift);
 
 	if (populate_memnodemap(nodes, numnodes, shift) != 1) {
-		printk(KERN_INFO
-	"Your memory is not aligned you need to rebuild your kernel "
-	"with a bigger NODEMAPSIZE shift=%d\n",
-			shift);
+		printk(KERN_INFO "Your memory is not aligned you need to "
+		       "rebuild your kernel with a bigger NODEMAPSIZE "
+		       "shift=%d\n", shift);
 		return -1;
 	}
 	return shift;
@@ -157,35 +160,37 @@ int early_pfn_to_nid(unsigned long pfn)
 }
 #endif
 
-static void * __init
-early_node_mem(int nodeid, unsigned long start, unsigned long end,
-	      unsigned long size)
+static void * __init early_node_mem(int nodeid, unsigned long start,
+				    unsigned long end, unsigned long size)
 {
 	unsigned long mem = find_e820_area(start, end, size);
 	void *ptr;
+
 	if (mem != -1L)
 		return __va(mem);
 	ptr = __alloc_bootmem_nopanic(size,
 				SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS));
 	if (ptr == NULL) {
 		printk(KERN_ERR "Cannot find %lu bytes in node %d\n",
-			size, nodeid);
+		       size, nodeid);
 		return NULL;
 	}
 	return ptr;
 }
 
 /* Initialize bootmem allocator for a node */
-void __init setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
-{ 
-	unsigned long start_pfn, end_pfn, bootmap_pages, bootmap_size, bootmap_start; 
-	unsigned long nodedata_phys;
+void __init setup_node_bootmem(int nodeid, unsigned long start,
+			       unsigned long end)
+{
+	unsigned long start_pfn, end_pfn, bootmap_pages, bootmap_size;
+	unsigned long bootmap_start, nodedata_phys;
 	void *bootmap;
 	const int pgdat_size = round_up(sizeof(pg_data_t), PAGE_SIZE);
 
-	start = round_up(start, ZONE_ALIGN); 
+	start = round_up(start, ZONE_ALIGN);
 
-	printk(KERN_INFO "Bootmem setup node %d %016lx-%016lx\n", nodeid, start, end);
+	printk(KERN_INFO "Bootmem setup node %d %016lx-%016lx\n", nodeid,
+	       start, end);
 
 	start_pfn = start >> PAGE_SHIFT;
 	end_pfn = end >> PAGE_SHIFT;
@@ -201,75 +206,81 @@ void __init setup_node_bootmem(int nodeid, unsigned long start, unsigned long en
 	NODE_DATA(nodeid)->node_spanned_pages = end_pfn - start_pfn;
 
 	/* Find a place for the bootmem map */
-	bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn); 
+	bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
 	bootmap_start = round_up(nodedata_phys + pgdat_size, PAGE_SIZE);
 	bootmap = early_node_mem(nodeid, bootmap_start, end,
 					bootmap_pages<<PAGE_SHIFT);
 	if (bootmap == NULL)  {
 		if (nodedata_phys < start || nodedata_phys >= end)
-			free_bootmem((unsigned long)node_data[nodeid],pgdat_size);
+			free_bootmem((unsigned long)node_data[nodeid],
+				     pgdat_size);
 		node_data[nodeid] = NULL;
 		return;
 	}
 	bootmap_start = __pa(bootmap);
-	Dprintk("bootmap start %lu pages %lu\n", bootmap_start, bootmap_pages); 
-	
+	Dprintk("bootmap start %lu pages %lu\n", bootmap_start, bootmap_pages);
+
 	bootmap_size = init_bootmem_node(NODE_DATA(nodeid),
-					 bootmap_start >> PAGE_SHIFT, 
-					 start_pfn, end_pfn); 
+					 bootmap_start >> PAGE_SHIFT,
+					 start_pfn, end_pfn);
 
 	free_bootmem_with_active_regions(nodeid, end);
 
-	reserve_bootmem_node(NODE_DATA(nodeid), nodedata_phys, pgdat_size); 
-	reserve_bootmem_node(NODE_DATA(nodeid), bootmap_start, bootmap_pages<<PAGE_SHIFT);
+	reserve_bootmem_node(NODE_DATA(nodeid), nodedata_phys, pgdat_size);
+	reserve_bootmem_node(NODE_DATA(nodeid), bootmap_start,
+			     bootmap_pages<<PAGE_SHIFT);
 #ifdef CONFIG_ACPI_NUMA
 	srat_reserve_add_area(nodeid);
 #endif
 	node_set_online(nodeid);
-} 
+}
 
 /* Initialize final allocator for a zone */
 void __init setup_node_zones(int nodeid)
-{ 
+{
 	unsigned long start_pfn, end_pfn, memmapsize, limit;
 
- 	start_pfn = node_start_pfn(nodeid);
- 	end_pfn = node_end_pfn(nodeid);
+	start_pfn = node_start_pfn(nodeid);
+	end_pfn = node_end_pfn(nodeid);
 
 	Dprintk(KERN_INFO "Setting up memmap for node %d %lx-%lx\n",
 		nodeid, start_pfn, end_pfn);
 
-	/* Try to allocate mem_map at end to not fill up precious <4GB
-	   memory. */
+	/*
+	 * Try to allocate mem_map at end to not fill up precious <4GB
+	 * memory.
+	 */
 	memmapsize = sizeof(struct page) * (end_pfn-start_pfn);
 	limit = end_pfn << PAGE_SHIFT;
 #ifdef CONFIG_FLAT_NODE_MEM_MAP
-	NODE_DATA(nodeid)->node_mem_map = 
-		__alloc_bootmem_core(NODE_DATA(nodeid)->bdata, 
-				memmapsize, SMP_CACHE_BYTES, 
-				round_down(limit - memmapsize, PAGE_SIZE), 
-				limit);
+	NODE_DATA(nodeid)->node_mem_map =
+		__alloc_bootmem_core(NODE_DATA(nodeid)->bdata,
+				     memmapsize, SMP_CACHE_BYTES,
+				     round_down(limit - memmapsize, PAGE_SIZE),
+				     limit);
 #endif
-} 
+}
 
+/*
+ * There are unfortunately some poorly designed mainboards around that
+ * only connect memory to a single CPU. This breaks the 1:1 cpu->node
+ * mapping. To avoid this fill in the mapping for all possible CPUs,
+ * as the number of CPUs is not known yet. We round robin the existing
+ * nodes.
+ */
 void __init numa_init_array(void)
 {
 	int rr, i;
-	/* There are unfortunately some poorly designed mainboards around
-	   that only connect memory to a single CPU. This breaks the 1:1 cpu->node
-	   mapping. To avoid this fill in the mapping for all possible
-	   CPUs, as the number of CPUs is not known yet. 
-	   We round robin the existing nodes. */
+
 	rr = first_node(node_online_map);
 	for (i = 0; i < NR_CPUS; i++) {
 		if (cpu_to_node(i) != NUMA_NO_NODE)
 			continue;
- 		numa_set_node(i, rr);
+		numa_set_node(i, rr);
 		rr = next_node(rr, node_online_map);
 		if (rr == MAX_NUMNODES)
 			rr = first_node(node_online_map);
 	}
-
 }
 
 #ifdef CONFIG_NUMA_EMU
@@ -277,15 +288,17 @@ void __init numa_init_array(void)
 char *cmdline __initdata;
 
 /*
- * Setups up nid to range from addr to addr + size.  If the end boundary is
- * greater than max_addr, then max_addr is used instead.  The return value is 0
- * if there is additional memory left for allocation past addr and -1 otherwise.
- * addr is adjusted to be at the end of the node.
+ * Setups up nid to range from addr to addr + size.  If the end
+ * boundary is greater than max_addr, then max_addr is used instead.
+ * The return value is 0 if there is additional memory left for
+ * allocation past addr and -1 otherwise.  addr is adjusted to be at
+ * the end of the node.
  */
 static int __init setup_node_range(int nid, struct bootnode *nodes, u64 *addr,
 				   u64 size, u64 max_addr)
 {
 	int ret = 0;
+
 	nodes[nid].start = *addr;
 	*addr += size;
 	if (*addr >= max_addr) {
@@ -336,6 +349,7 @@ static int __init split_nodes_equally(struct bootnode *nodes, u64 *addr,
 
 	for (i = node_start; i < num_nodes + node_start; i++) {
 		u64 end = *addr + size;
+
 		if (i < big)
 			end += FAKE_NODE_MIN_SIZE;
 		/*
@@ -381,14 +395,9 @@ static int __init split_nodes_by_size(struct bootnode *nodes, u64 *addr,
 static int __init numa_emulation(unsigned long start_pfn, unsigned long end_pfn)
 {
 	struct bootnode nodes[MAX_NUMNODES];
-	u64 addr = start_pfn << PAGE_SHIFT;
+	u64 size, addr = start_pfn << PAGE_SHIFT;
 	u64 max_addr = end_pfn << PAGE_SHIFT;
-	int num_nodes = 0;
-	int coeff_flag;
-	int coeff = -1;
-	int num = 0;
-	u64 size;
-	int i;
+	int num_nodes = 0, num = 0, coeff_flag, coeff = -1, i;
 
 	memset(&nodes, 0, sizeof(nodes));
 	/*
@@ -396,8 +405,9 @@ static int __init numa_emulation(unsigned long start_pfn, unsigned long end_pfn)
 	 * system RAM into N fake nodes.
 	 */
 	if (!strchr(cmdline, '*') && !strchr(cmdline, ',')) {
-		num_nodes = split_nodes_equally(nodes, &addr, max_addr, 0,
-						simple_strtol(cmdline, NULL, 0));
+		long n = simple_strtol(cmdline, NULL, 0);
+
+		num_nodes = split_nodes_equally(nodes, &addr, max_addr, 0, n);
 		if (num_nodes < 0)
 			return num_nodes;
 		goto out;
@@ -484,46 +494,47 @@ out:
 	for_each_node_mask(i, node_possible_map) {
 		e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
 						nodes[i].end >> PAGE_SHIFT);
- 		setup_node_bootmem(i, nodes[i].start, nodes[i].end);
+		setup_node_bootmem(i, nodes[i].start, nodes[i].end);
 	}
 	acpi_fake_nodes(nodes, num_nodes);
- 	numa_init_array();
- 	return 0;
+	numa_init_array();
+	return 0;
 }
 #endif /* CONFIG_NUMA_EMU */
 
 void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
-{ 
+{
 	int i;
 
 	nodes_clear(node_possible_map);
 
 #ifdef CONFIG_NUMA_EMU
 	if (cmdline && !numa_emulation(start_pfn, end_pfn))
- 		return;
+		return;
 	nodes_clear(node_possible_map);
 #endif
 
 #ifdef CONFIG_ACPI_NUMA
 	if (!numa_off && !acpi_scan_nodes(start_pfn << PAGE_SHIFT,
 					  end_pfn << PAGE_SHIFT))
- 		return;
+		return;
 	nodes_clear(node_possible_map);
 #endif
 
 #ifdef CONFIG_K8_NUMA
-	if (!numa_off && !k8_scan_nodes(start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT))
+	if (!numa_off && !k8_scan_nodes(start_pfn<<PAGE_SHIFT,
+					end_pfn<<PAGE_SHIFT))
 		return;
 	nodes_clear(node_possible_map);
 #endif
 	printk(KERN_INFO "%s\n",
 	       numa_off ? "NUMA turned off" : "No NUMA configuration found");
 
-	printk(KERN_INFO "Faking a node at %016lx-%016lx\n", 
+	printk(KERN_INFO "Faking a node at %016lx-%016lx\n",
 	       start_pfn << PAGE_SHIFT,
-	       end_pfn << PAGE_SHIFT); 
-		/* setup dummy node covering all memory */ 
-	memnode_shift = 63; 
+	       end_pfn << PAGE_SHIFT);
+	/* setup dummy node covering all memory */
+	memnode_shift = 63;
 	memnodemap = memnode.embedded_map;
 	memnodemap[0] = 0;
 	nodes_clear(node_online_map);
@@ -539,7 +550,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
 __cpuinit void numa_add_cpu(int cpu)
 {
 	set_bit(cpu, &node_to_cpumask[cpu_to_node(cpu)]);
-} 
+}
 
 void __cpuinit numa_set_node(int cpu, int node)
 {
@@ -547,20 +558,22 @@ void __cpuinit numa_set_node(int cpu, int node)
 	cpu_to_node(cpu) = node;
 }
 
-unsigned long __init numa_free_all_bootmem(void) 
-{ 
-	int i;
+unsigned long __init numa_free_all_bootmem(void)
+{
 	unsigned long pages = 0;
-	for_each_online_node(i) {
+	int i;
+
+	for_each_online_node(i)
 		pages += free_all_bootmem_node(NODE_DATA(i));
-	}
+
 	return pages;
-} 
+}
 
 void __init paging_init(void)
-{ 
-	int i;
+{
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
+	int i;
+
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 	max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
 	max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
@@ -569,32 +582,30 @@ void __init paging_init(void)
 	sparse_memory_present_with_active_regions(MAX_NUMNODES);
 	sparse_init();
 
-	for_each_online_node(i) {
-		setup_node_zones(i); 
-	}
+	for_each_online_node(i)
+		setup_node_zones(i);
 
 	free_area_init_nodes(max_zone_pfns);
-} 
+}
 
 static __init int numa_setup(char *opt)
-{ 
+{
 	if (!opt)
 		return -EINVAL;
-	if (!strncmp(opt,"off",3))
+	if (!strncmp(opt, "off", 3))
 		numa_off = 1;
 #ifdef CONFIG_NUMA_EMU
 	if (!strncmp(opt, "fake=", 5))
 		cmdline = opt + 5;
 #endif
 #ifdef CONFIG_ACPI_NUMA
- 	if (!strncmp(opt,"noacpi",6))
- 		acpi_numa = -1;
-	if (!strncmp(opt,"hotadd=", 7))
+	if (!strncmp(opt, "noacpi", 6))
+		acpi_numa = -1;
+	if (!strncmp(opt, "hotadd=", 7))
 		hotadd_percent = simple_strtoul(opt+7, NULL, 10);
 #endif
 	return 0;
-} 
-
+}
 early_param("numa", numa_setup);
 
 /*
@@ -612,20 +623,18 @@ early_param("numa", numa_setup);
 void __init init_cpu_to_node(void)
 {
 	int i;
- 	for (i = 0; i < NR_CPUS; i++) {
+
+	for (i = 0; i < NR_CPUS; i++) {
 		u8 apicid = x86_cpu_to_apicid_init[i];
+
 		if (apicid == BAD_APICID)
 			continue;
 		if (apicid_to_node[apicid] == NUMA_NO_NODE)
 			continue;
-		numa_set_node(i,apicid_to_node[apicid]);
+		numa_set_node(i, apicid_to_node[apicid]);
 	}
 }
 
-EXPORT_SYMBOL(cpu_to_node);
-EXPORT_SYMBOL(node_to_cpumask);
-EXPORT_SYMBOL(node_data);
-
 #ifdef CONFIG_DISCONTIGMEM
 /*
  * Functions to convert PFNs from/to per node page addresses.
-- 
cgit v1.2.3-59-g8ed1b


From 7462894a7cb03b54b9139f31fab5928366752a78 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:38 +0100
Subject: x86: fixup numa 64 namespace

Using a variable name, which is the same as a macro name is not
really smart. Change the variable names and fixup all users.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/numa_64.c         | 14 +++++++-------
 include/asm-x86/numa_64.h     |  2 +-
 include/asm-x86/topology_64.h | 10 +++++-----
 3 files changed, 13 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 4faed6a8f3ae..29b69300aee2 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -30,17 +30,17 @@ bootmem_data_t plat_node_bdata[MAX_NUMNODES];
 
 struct memnode memnode;
 
-unsigned char cpu_to_node[NR_CPUS] __read_mostly = {
+int cpu_to_node_map[NR_CPUS] __read_mostly = {
 	[0 ... NR_CPUS-1] = NUMA_NO_NODE
 };
-EXPORT_SYMBOL(cpu_to_node);
+EXPORT_SYMBOL(cpu_to_node_map);
 
 unsigned char apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
 	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
 };
 
-cpumask_t node_to_cpumask[MAX_NUMNODES] __read_mostly;
-EXPORT_SYMBOL(node_to_cpumask);
+cpumask_t node_to_cpumask_map[MAX_NUMNODES] __read_mostly;
+EXPORT_SYMBOL(node_to_cpumask_map);
 
 int numa_off __initdata;
 unsigned long __initdata nodemap_addr;
@@ -542,20 +542,20 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
 	node_set(0, node_possible_map);
 	for (i = 0; i < NR_CPUS; i++)
 		numa_set_node(i, 0);
-	node_to_cpumask[0] = cpumask_of_cpu(0);
+	node_to_cpumask_map[0] = cpumask_of_cpu(0);
 	e820_register_active_regions(0, start_pfn, end_pfn);
 	setup_node_bootmem(0, start_pfn << PAGE_SHIFT, end_pfn << PAGE_SHIFT);
 }
 
 __cpuinit void numa_add_cpu(int cpu)
 {
-	set_bit(cpu, &node_to_cpumask[cpu_to_node(cpu)]);
+	set_bit(cpu, &node_to_cpumask_map[cpu_to_node(cpu)]);
 }
 
 void __cpuinit numa_set_node(int cpu, int node)
 {
 	cpu_pda(cpu)->nodenumber = node;
-	cpu_to_node(cpu) = node;
+	cpu_to_node_map[cpu] = node;
 }
 
 unsigned long __init numa_free_all_bootmem(void)
diff --git a/include/asm-x86/numa_64.h b/include/asm-x86/numa_64.h
index e6bc0b5dfe3a..c3c20db1fba3 100644
--- a/include/asm-x86/numa_64.h
+++ b/include/asm-x86/numa_64.h
@@ -32,7 +32,7 @@ extern void __init init_cpu_to_node(void);
 
 static inline void clear_node_cpumask(int cpu)
 {
-	clear_bit(cpu, &node_to_cpumask[cpu_to_node(cpu)]);
+	clear_bit(cpu, &node_to_cpumask_map[cpu_to_node(cpu)]);
 }
 
 #else
diff --git a/include/asm-x86/topology_64.h b/include/asm-x86/topology_64.h
index 407b22d4e3b0..cf529341b16c 100644
--- a/include/asm-x86/topology_64.h
+++ b/include/asm-x86/topology_64.h
@@ -7,8 +7,8 @@
 #include <asm/mpspec.h>
 #include <linux/bitops.h>
 
-extern unsigned char cpu_to_node[];
-extern cpumask_t     node_to_cpumask[];
+extern int cpu_to_node_map[];
+extern cpumask_t node_to_cpumask_map[];
 
 #ifdef CONFIG_ACPI_NUMA
 extern int __node_distance(int, int);
@@ -16,10 +16,10 @@ extern int __node_distance(int, int);
 /* #else fallback version */
 #endif
 
-#define cpu_to_node(cpu)		(cpu_to_node[cpu])
+#define cpu_to_node(cpu)		(cpu_to_node_map[cpu])
 #define parent_node(node)		(node)
-#define node_to_first_cpu(node) 	(first_cpu(node_to_cpumask[node]))
-#define node_to_cpumask(node)		(node_to_cpumask[node])
+#define node_to_first_cpu(node)		(first_cpu(node_to_cpumask_map[node]))
+#define node_to_cpumask(node)		(node_to_cpumask_map[node])
 #define pcibus_to_node(bus)	((struct pci_sysdata *)((bus)->sysdata))->node
 #define pcibus_to_cpumask(bus)		node_to_cpumask(pcibus_to_node(bus));
 
-- 
cgit v1.2.3-59-g8ed1b


From fe21a445b98c9d52f02f3412d7a2fd39784f3b22 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:38 +0100
Subject: x86: adjust numa 32 namespace

Use the 64bit numa variable names for numa32 as well.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/smpboot_32.c  | 16 ++++++++--------
 include/asm-x86/topology_32.h |  8 ++++----
 2 files changed, 12 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 753d7acf4dac..239ada1c499c 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -466,19 +466,19 @@ extern struct {
 #ifdef CONFIG_NUMA
 
 /* which logical CPUs are on which nodes */
-cpumask_t node_2_cpu_mask[MAX_NUMNODES] __read_mostly =
+cpumask_t node_to_cpumask_map[MAX_NUMNODES] __read_mostly =
 				{ [0 ... MAX_NUMNODES-1] = CPU_MASK_NONE };
-EXPORT_SYMBOL(node_2_cpu_mask);
+EXPORT_SYMBOL(node_to_cpumask_map);
 /* which node each logical CPU is on */
-int cpu_2_node[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = 0 };
-EXPORT_SYMBOL(cpu_2_node);
+int cpu_to_node_map[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = 0 };
+EXPORT_SYMBOL(cpu_to_node_map);
 
 /* set up a mapping between cpu and node. */
 static inline void map_cpu_to_node(int cpu, int node)
 {
 	printk("Mapping cpu %d to node %d\n", cpu, node);
-	cpu_set(cpu, node_2_cpu_mask[node]);
-	cpu_2_node[cpu] = node;
+	cpu_set(cpu, node_to_cpumask_map[node]);
+	cpu_to_node_map[cpu] = node;
 }
 
 /* undo a mapping between cpu and node. */
@@ -488,8 +488,8 @@ static inline void unmap_cpu_to_node(int cpu)
 
 	printk("Unmapping cpu %d from all nodes\n", cpu);
 	for (node = 0; node < MAX_NUMNODES; node ++)
-		cpu_clear(cpu, node_2_cpu_mask[node]);
-	cpu_2_node[cpu] = 0;
+		cpu_clear(cpu, node_to_cpumask_map[node]);
+	cpu_to_node_map[cpu] = 0;
 }
 #else /* !CONFIG_NUMA */
 
diff --git a/include/asm-x86/topology_32.h b/include/asm-x86/topology_32.h
index fdca80a851e2..e28dbdcc5670 100644
--- a/include/asm-x86/topology_32.h
+++ b/include/asm-x86/topology_32.h
@@ -39,13 +39,13 @@
 #include <linux/cpumask.h>
 
 /* Mappings between logical cpu number and node number */
-extern cpumask_t node_2_cpu_mask[];
-extern int cpu_2_node[];
+extern cpumask_t node_to_cpumask_map[];
+extern int cpu_to_node_map[];
 
 /* Returns the number of the node containing CPU 'cpu' */
 static inline int cpu_to_node(int cpu)
 { 
-	return cpu_2_node[cpu];
+	return cpu_to_node_map[cpu];
 }
 
 /* Returns the number of the node containing Node 'node'.  This architecture is flat, 
@@ -55,7 +55,7 @@ static inline int cpu_to_node(int cpu)
 /* Returns a bitmask of CPUs on Node 'node'. */
 static inline cpumask_t node_to_cpumask(int node)
 {
-	return node_2_cpu_mask[node];
+	return node_to_cpumask_map[node];
 }
 
 /* Returns the number of the first CPU on Node 'node'. */
-- 
cgit v1.2.3-59-g8ed1b


From 7ebad705340f35276326ed93a43190e62f725f77 Mon Sep 17 00:00:00 2001
From: Dave Jones <davej@redhat.com>
Date: Wed, 30 Jan 2008 13:30:39 +0100
Subject: x86: use CR0 defines.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/cpu/bugs.c         | 3 ++-
 arch/x86/kernel/cpu/cyrix.c        | 6 ++----
 arch/x86/kernel/cpu/mtrr/cyrix.c   | 3 ++-
 arch/x86/kernel/cpu/mtrr/generic.c | 3 ++-
 arch/x86/kernel/cpu/mtrr/state.c   | 3 ++-
 5 files changed, 10 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 205fd5ba57f7..a96abd453e0d 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -11,6 +11,7 @@
 #include <linux/utsname.h>
 #include <asm/bugs.h>
 #include <asm/processor.h>
+#include <asm/processor-flags.h>
 #include <asm/i387.h>
 #include <asm/msr.h>
 #include <asm/paravirt.h>
@@ -35,7 +36,7 @@ __setup("mca-pentium", mca_pentium);
 static int __init no_387(char *s)
 {
 	boot_cpu_data.hard_math = 0;
-	write_cr0(0xE | read_cr0());
+	write_cr0(X86_CR0_TS | X86_CR0_EM | X86_CR0_MP | read_cr0());
 	return 1;
 }
 
diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c
index 88d66fb8411d..404a6a2d4016 100644
--- a/arch/x86/kernel/cpu/cyrix.c
+++ b/arch/x86/kernel/cpu/cyrix.c
@@ -5,6 +5,7 @@
 #include <asm/dma.h>
 #include <asm/io.h>
 #include <asm/processor-cyrix.h>
+#include <asm/processor-flags.h>
 #include <asm/timer.h>
 #include <asm/pci-direct.h>
 #include <asm/tsc.h>
@@ -126,15 +127,12 @@ static void __cpuinit set_cx86_reorder(void)
 
 static void __cpuinit set_cx86_memwb(void)
 {
-	u32 cr0;
-
 	printk(KERN_INFO "Enable Memory-Write-back mode on Cyrix/NSC processor.\n");
 
 	/* CCR2 bit 2: unlock NW bit */
 	setCx86(CX86_CCR2, getCx86(CX86_CCR2) & ~0x04);
 	/* set 'Not Write-through' */
-	cr0 = 0x20000000;
-	write_cr0(read_cr0() | cr0);
+	write_cr0(read_cr0() | X86_CR0_NW);
 	/* CCR2 bit 2: lock NW bit and set WT1 */
 	setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x14 );
 }
diff --git a/arch/x86/kernel/cpu/mtrr/cyrix.c b/arch/x86/kernel/cpu/mtrr/cyrix.c
index 9964be3de2b7..8e139c70f888 100644
--- a/arch/x86/kernel/cpu/mtrr/cyrix.c
+++ b/arch/x86/kernel/cpu/mtrr/cyrix.c
@@ -4,6 +4,7 @@
 #include <asm/msr.h>
 #include <asm/io.h>
 #include <asm/processor-cyrix.h>
+#include <asm/processor-flags.h>
 #include "mtrr.h"
 
 int arr3_protected;
@@ -142,7 +143,7 @@ static void prepare_set(void)
 
 	/*  Disable and flush caches. Note that wbinvd flushes the TLBs as
 	    a side-effect  */
-	cr0 = read_cr0() | 0x40000000;
+	cr0 = read_cr0() | X86_CR0_CD;
 	wbinvd();
 	write_cr0(cr0);
 	wbinvd();
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 1c331c373a43..55d31ff118fb 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -9,6 +9,7 @@
 #include <asm/msr.h>
 #include <asm/system.h>
 #include <asm/cpufeature.h>
+#include <asm/processor-flags.h>
 #include <asm/tlbflush.h>
 #include "mtrr.h"
 
@@ -350,7 +351,7 @@ static void prepare_set(void) __acquires(set_atomicity_lock)
 	spin_lock(&set_atomicity_lock);
 
 	/*  Enter the no-fill (CD=1, NW=0) cache mode and flush caches. */
-	cr0 = read_cr0() | 0x40000000;	/* set CD flag */
+	cr0 = read_cr0() | X86_CR0_CD;
 	write_cr0(cr0);
 	wbinvd();
 
diff --git a/arch/x86/kernel/cpu/mtrr/state.c b/arch/x86/kernel/cpu/mtrr/state.c
index 49e20c2afcdf..9f8ba923d1c9 100644
--- a/arch/x86/kernel/cpu/mtrr/state.c
+++ b/arch/x86/kernel/cpu/mtrr/state.c
@@ -4,6 +4,7 @@
 #include <asm/mtrr.h>
 #include <asm/msr.h>
 #include <asm/processor-cyrix.h>
+#include <asm/processor-flags.h>
 #include "mtrr.h"
 
 
@@ -25,7 +26,7 @@ void set_mtrr_prepare_save(struct set_mtrr_context *ctxt)
 
 		/*  Disable and flush caches. Note that wbinvd flushes the TLBs as
 		    a side-effect  */
-		cr0 = read_cr0() | 0x40000000;
+		cr0 = read_cr0() | X86_CR0_CD;
 		wbinvd();
 		write_cr0(cr0);
 		wbinvd();
-- 
cgit v1.2.3-59-g8ed1b


From 5cabbd97b10229159919ff17f746b69742cec84d Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Wed, 30 Jan 2008 13:30:39 +0100
Subject: x86: remove unused tsk_thread from asm-offsets_64.c

So this patch simply removes the "thread" from asm-offsets.c since I
can't find an owner for it.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/asm-offsets_64.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index d1b6ed98774e..40f41752c1df 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -38,7 +38,6 @@ int main(void)
 #define ENTRY(entry) DEFINE(tsk_ ## entry, offsetof(struct task_struct, entry))
 	ENTRY(state);
 	ENTRY(flags); 
-	ENTRY(thread); 
 	ENTRY(pid);
 	BLANK();
 #undef ENTRY
-- 
cgit v1.2.3-59-g8ed1b


From 04e1ba852132c9ad006affcd5b8c8606295170b0 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:30:39 +0100
Subject: x86: cleanup kernel/setup_64.c

Clean it up before applying more patches to it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/setup_64.c | 249 +++++++++++++++++++++++----------------------
 1 file changed, 126 insertions(+), 123 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 1acb435a0585..62db062ba138 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -77,7 +77,7 @@ unsigned long saved_video_mode;
 
 int force_mwait __cpuinitdata;
 
-/* 
+/*
  * Early DMI memory
  */
 int dmi_alloc_index;
@@ -169,12 +169,12 @@ contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
 	bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
 	bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size);
 	if (bootmap == -1L)
-		panic("Cannot find bootmem map of size %ld\n",bootmap_size);
+		panic("Cannot find bootmem map of size %ld\n", bootmap_size);
 	bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
 	e820_register_active_regions(0, start_pfn, end_pfn);
 	free_bootmem_with_active_regions(0, end_pfn);
 	reserve_bootmem(bootmap, bootmap_size);
-} 
+}
 #endif
 
 #if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
@@ -208,7 +208,8 @@ static void __init reserve_crashkernel(void)
 	unsigned long long crash_size, crash_base;
 	int ret;
 
-	free_mem = ((unsigned long long)max_low_pfn - min_low_pfn) << PAGE_SHIFT;
+	free_mem =
+		((unsigned long long)max_low_pfn - min_low_pfn) << PAGE_SHIFT;
 
 	ret = parse_crashkernel(boot_command_line, free_mem,
 			&crash_size, &crash_base);
@@ -240,7 +241,7 @@ unsigned __initdata ebda_size;
 static void discover_ebda(void)
 {
 	/*
-	 * there is a real-mode segmented pointer pointing to the 
+	 * there is a real-mode segmented pointer pointing to the
 	 * 4K EBDA area at 0x40E
 	 */
 	ebda_addr = *(unsigned short *)__va(EBDA_ADDR_POINTER);
@@ -259,6 +260,8 @@ static void discover_ebda(void)
 
 void __init setup_arch(char **cmdline_p)
 {
+	unsigned i;
+
 	printk(KERN_INFO "Command line: %s\n", boot_command_line);
 
 	ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
@@ -345,13 +348,13 @@ void __init setup_arch(char **cmdline_p)
 #endif
 
 #ifdef CONFIG_NUMA
-	numa_initmem_init(0, end_pfn); 
+	numa_initmem_init(0, end_pfn);
 #else
 	contig_initmem_init(0, end_pfn);
 #endif
 
 	/* Reserve direct mapping */
-	reserve_bootmem_generic(table_start << PAGE_SHIFT, 
+	reserve_bootmem_generic(table_start << PAGE_SHIFT,
 				(table_end - table_start) << PAGE_SHIFT);
 
 	/* reserve kernel */
@@ -379,14 +382,14 @@ void __init setup_arch(char **cmdline_p)
 #endif
 
 #ifdef CONFIG_ACPI_SLEEP
-       /*
-        * Reserve low memory region for sleep support.
-        */
-       acpi_reserve_bootmem();
-#endif
 	/*
-	 * Find and reserve possible boot-time SMP configuration:
+	 * Reserve low memory region for sleep support.
 	 */
+       acpi_reserve_bootmem();
+#endif
+       /*
+	* Find and reserve possible boot-time SMP configuration:
+	*/
 	find_smp_config();
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
@@ -437,16 +440,13 @@ void __init setup_arch(char **cmdline_p)
 
 	/*
 	 * We trust e820 completely. No explicit ROM probing in memory.
- 	 */
+	 */
 	e820_reserve_resources(&code_resource, &data_resource, &bss_resource);
 	e820_mark_nosave_regions();
 
-	{
-	unsigned i;
 	/* request I/O space for devices used on all i[345]86 PCs */
 	for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++)
 		request_resource(&ioport_resource, &standard_io_resources[i]);
-	}
 
 	e820_setup_gap();
 
@@ -483,9 +483,10 @@ static void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
 
 	if (n >= 0x80000005) {
 		cpuid(0x80000005, &dummy, &ebx, &ecx, &edx);
-		printk(KERN_INFO "CPU: L1 I Cache: %dK (%d bytes/line), D cache %dK (%d bytes/line)\n",
-			edx>>24, edx&0xFF, ecx>>24, ecx&0xFF);
-		c->x86_cache_size=(ecx>>24)+(edx>>24);
+		printk(KERN_INFO "CPU: L1 I Cache: %dK (%d bytes/line), "
+		       "D cache %dK (%d bytes/line)\n",
+		       edx>>24, edx&0xFF, ecx>>24, ecx&0xFF);
+		c->x86_cache_size = (ecx>>24) + (edx>>24);
 		/* On K8 L1 TLB is inclusive, so don't count it */
 		c->x86_tlbsize = 0;
 	}
@@ -501,9 +502,9 @@ static void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
 	}
 
 	if (n >= 0x80000007)
-		cpuid(0x80000007, &dummy, &dummy, &dummy, &c->x86_power); 
+		cpuid(0x80000007, &dummy, &dummy, &dummy, &c->x86_power);
 	if (n >= 0x80000008) {
-		cpuid(0x80000008, &eax, &dummy, &dummy, &dummy); 
+		cpuid(0x80000008, &eax, &dummy, &dummy, &dummy);
 		c->x86_virt_bits = (eax >> 8) & 0xff;
 		c->x86_phys_bits = eax & 0xff;
 	}
@@ -512,14 +513,15 @@ static void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
 #ifdef CONFIG_NUMA
 static int nearby_node(int apicid)
 {
-	int i;
+	int i, node;
+
 	for (i = apicid - 1; i >= 0; i--) {
-		int node = apicid_to_node[i];
+		node = apicid_to_node[i];
 		if (node != NUMA_NO_NODE && node_online(node))
 			return node;
 	}
 	for (i = apicid + 1; i < MAX_LOCAL_APIC; i++) {
-		int node = apicid_to_node[i];
+		node = apicid_to_node[i];
 		if (node != NUMA_NO_NODE && node_online(node))
 			return node;
 	}
@@ -559,27 +561,29 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
 	c->phys_proc_id = phys_pkg_id(bits);
 
 #ifdef CONFIG_NUMA
-  	node = c->phys_proc_id;
- 	if (apicid_to_node[apicid] != NUMA_NO_NODE)
- 		node = apicid_to_node[apicid];
- 	if (!node_online(node)) {
- 		/* Two possibilities here:
- 		   - The CPU is missing memory and no node was created.
- 		   In that case try picking one from a nearby CPU
- 		   - The APIC IDs differ from the HyperTransport node IDs
- 		   which the K8 northbridge parsing fills in.
- 		   Assume they are all increased by a constant offset,
- 		   but in the same order as the HT nodeids.
- 		   If that doesn't result in a usable node fall back to the
- 		   path for the previous case.  */
+	node = c->phys_proc_id;
+	if (apicid_to_node[apicid] != NUMA_NO_NODE)
+		node = apicid_to_node[apicid];
+	if (!node_online(node)) {
+		/* Two possibilities here:
+		   - The CPU is missing memory and no node was created.
+		   In that case try picking one from a nearby CPU
+		   - The APIC IDs differ from the HyperTransport node IDs
+		   which the K8 northbridge parsing fills in.
+		   Assume they are all increased by a constant offset,
+		   but in the same order as the HT nodeids.
+		   If that doesn't result in a usable node fall back to the
+		   path for the previous case.  */
+
 		int ht_nodeid = apicid - (cpu_data(0).phys_proc_id << bits);
- 		if (ht_nodeid >= 0 &&
- 		    apicid_to_node[ht_nodeid] != NUMA_NO_NODE)
- 			node = apicid_to_node[ht_nodeid];
- 		/* Pick a nearby node */
- 		if (!node_online(node))
- 			node = nearby_node(apicid);
- 	}
+
+		if (ht_nodeid >= 0 &&
+		    apicid_to_node[ht_nodeid] != NUMA_NO_NODE)
+			node = apicid_to_node[ht_nodeid];
+		/* Pick a nearby node */
+		if (!node_online(node))
+			node = nearby_node(apicid);
+	}
 	numa_set_node(cpu, node);
 
 	printk(KERN_INFO "CPU %d/%x -> Node %d\n", cpu, apicid, node);
@@ -599,8 +603,8 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
 /* AMD systems with C1E don't have a working lAPIC timer. Check for that. */
 static __cpuinit int amd_apic_timer_broken(void)
 {
-	u32 lo, hi;
-	u32 eax = cpuid_eax(CPUID_PROCESSOR_SIGNATURE);
+	u32 lo, hi, eax = cpuid_eax(CPUID_PROCESSOR_SIGNATURE);
+
 	switch (eax & CPUID_XFAM) {
 	case CPUID_XFAM_K8:
 		if ((eax & CPUID_XMOD) < CPUID_XMOD_REV_F)
@@ -628,7 +632,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 	/*
 	 * Disable TLB flush filter by setting HWCR.FFDIS on K8
 	 * bit 6 of msr C001_0015
- 	 *
+	 *
 	 * Errata 63 for SH-B3 steppings
 	 * Errata 122 for all steppings (F+ have it disabled by default)
 	 */
@@ -642,10 +646,11 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 	/* Bit 31 in normal CPUID used for nonstandard 3DNow ID;
 	   3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway */
 	clear_bit(0*32+31, &c->x86_capability);
-	
+
 	/* On C+ stepping K8 rep microcode works well for copy/memset */
 	level = cpuid_eax(1);
-	if (c->x86 == 15 && ((level >= 0x0f48 && level < 0x0f50) || level >= 0x0f58))
+	if (c->x86 == 15 && ((level >= 0x0f48 && level < 0x0f50) ||
+			     level >= 0x0f58))
 		set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
 	if (c->x86 == 0x10 || c->x86 == 0x11)
 		set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
@@ -656,14 +661,14 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 
 	level = get_model_name(c);
 	if (!level) {
-		switch (c->x86) { 
+		switch (c->x86) {
 		case 15:
 			/* Should distinguish Models here, but this is only
 			   a fallback anyways. */
 			strcpy(c->x86_model_id, "Hammer");
-			break; 
-		} 
-	} 
+			break;
+		}
+	}
 	display_cacheinfo(c);
 
 	/* c->x86_power is 8000_0007 edx. Bit 8 is constant TSC */
@@ -697,25 +702,26 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 static void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
-	u32 	eax, ebx, ecx, edx;
-	int 	index_msb, core_bits;
+	u32 eax, ebx, ecx, edx;
+	int index_msb, core_bits;
 
 	cpuid(1, &eax, &ebx, &ecx, &edx);
 
 
 	if (!cpu_has(c, X86_FEATURE_HT))
 		return;
- 	if (cpu_has(c, X86_FEATURE_CMP_LEGACY))
+	if (cpu_has(c, X86_FEATURE_CMP_LEGACY))
 		goto out;
 
 	smp_num_siblings = (ebx & 0xff0000) >> 16;
 
 	if (smp_num_siblings == 1) {
 		printk(KERN_INFO  "CPU: Hyper-Threading is disabled\n");
-	} else if (smp_num_siblings > 1 ) {
+	} else if (smp_num_siblings > 1) {
 
 		if (smp_num_siblings > NR_CPUS) {
-			printk(KERN_WARNING "CPU: Unsupported number of the siblings %d", smp_num_siblings);
+			printk(KERN_WARNING "CPU: Unsupported number of "
+			       "siblings %d", smp_num_siblings);
 			smp_num_siblings = 1;
 			return;
 		}
@@ -725,7 +731,7 @@ static void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 
 		smp_num_siblings = smp_num_siblings / c->x86_max_cores;
 
-		index_msb = get_count_order(smp_num_siblings) ;
+		index_msb = get_count_order(smp_num_siblings);
 
 		core_bits = get_count_order(c->x86_max_cores);
 
@@ -734,8 +740,10 @@ static void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 	}
 out:
 	if ((c->x86_max_cores * smp_num_siblings) > 1) {
-		printk(KERN_INFO  "CPU: Physical Processor ID: %d\n", c->phys_proc_id);
-		printk(KERN_INFO  "CPU: Processor Core ID: %d\n", c->cpu_core_id);
+		printk(KERN_INFO  "CPU: Physical Processor ID: %d\n",
+		       c->phys_proc_id);
+		printk(KERN_INFO  "CPU: Processor Core ID: %d\n",
+		       c->cpu_core_id);
 	}
 
 #endif
@@ -783,7 +791,7 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 	unsigned n;
 
 	init_intel_cacheinfo(c);
-	if (c->cpuid_level > 9 ) {
+	if (c->cpuid_level > 9) {
 		unsigned eax = cpuid_eax(10);
 		/* Check for version and the number of counters */
 		if ((eax & 0xff) && (((eax>>8) & 0xff) > 1))
@@ -822,7 +830,7 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 		set_bit(X86_FEATURE_SYNC_RDTSC, &c->x86_capability);
 	else
 		clear_bit(X86_FEATURE_SYNC_RDTSC, &c->x86_capability);
- 	c->x86_max_cores = intel_num_cpu_cores(c);
+	c->x86_max_cores = intel_num_cpu_cores(c);
 
 	srat_detect_node();
 }
@@ -869,7 +877,7 @@ static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
 	      (unsigned int *)&c->x86_vendor_id[0],
 	      (unsigned int *)&c->x86_vendor_id[8],
 	      (unsigned int *)&c->x86_vendor_id[4]);
-		
+
 	get_cpu_vendor(c);
 
 	/* Initialize the standard set of capabilities */
@@ -887,7 +895,7 @@ static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
 			c->x86 += (tfms >> 20) & 0xff;
 		if (c->x86 >= 0x6)
 			c->x86_model += ((tfms >> 16) & 0xF) << 4;
-		if (c->x86_capability[0] & (1<<19)) 
+		if (c->x86_capability[0] & (1<<19))
 			c->x86_clflush_size = ((misc >> 8) & 0xff) * 8;
 	} else {
 		/* Have CPUID level 0 only - unheard of */
@@ -959,7 +967,7 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 	}
 
 	select_idle_routine(c);
-	detect_ht(c); 
+	detect_ht(c);
 
 	/*
 	 * On SMP, boot_cpu_data holds the common feature set between
@@ -969,7 +977,7 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 	 */
 	if (c != &boot_cpu_data) {
 		/* AND the already accumulated flags with these */
-		for (i = 0 ; i < NCAPINTS ; i++)
+		for (i = 0; i < NCAPINTS; i++)
 			boot_cpu_data.x86_capability[i] &= c->x86_capability[i];
 	}
 
@@ -982,17 +990,16 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 	numa_add_cpu(smp_processor_id());
 #endif
 }
- 
 
 void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
 {
 	if (c->x86_model_id[0])
-		printk("%s", c->x86_model_id);
+		printk(KERN_INFO "%s", c->x86_model_id);
 
-	if (c->x86_mask || c->cpuid_level >= 0) 
-		printk(" stepping %02x\n", c->x86_mask);
+	if (c->x86_mask || c->cpuid_level >= 0)
+		printk(KERN_CONT " stepping %02x\n", c->x86_mask);
 	else
-		printk("\n");
+		printk(KERN_CONT "\n");
 }
 
 /*
@@ -1002,9 +1009,9 @@ void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
 static int show_cpuinfo(struct seq_file *m, void *v)
 {
 	struct cpuinfo_x86 *c = v;
-	int cpu = 0;
+	int cpu = 0, i;
 
-	/* 
+	/*
 	 * These flag bits must match the definitions in <asm/cpufeature.h>.
 	 * NULL means this bit is undefined or reserved; either way it doesn't
 	 * have meaning as far as Linux is concerned.  Note that it's important
@@ -1014,10 +1021,10 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 	 */
 	static const char *const x86_cap_flags[] = {
 		/* Intel-defined */
-	        "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
-	        "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
-	        "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx",
-	        "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe",
+		"fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
+		"cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
+		"pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx",
+		"fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe",
 
 		/* AMD-defined */
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
@@ -1084,34 +1091,35 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 	cpu = c->cpu_index;
 #endif
 
-	seq_printf(m,"processor\t: %u\n"
-		     "vendor_id\t: %s\n"
-		     "cpu family\t: %d\n"
-		     "model\t\t: %d\n"
-		     "model name\t: %s\n",
-		     (unsigned)cpu,
-		     c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
-		     c->x86,
-		     (int)c->x86_model,
-		     c->x86_model_id[0] ? c->x86_model_id : "unknown");
-	
+	seq_printf(m, "processor\t: %u\n"
+		   "vendor_id\t: %s\n"
+		   "cpu family\t: %d\n"
+		   "model\t\t: %d\n"
+		   "model name\t: %s\n",
+		   (unsigned)cpu,
+		   c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
+		   c->x86,
+		   (int)c->x86_model,
+		   c->x86_model_id[0] ? c->x86_model_id : "unknown");
+
 	if (c->x86_mask || c->cpuid_level >= 0)
 		seq_printf(m, "stepping\t: %d\n", c->x86_mask);
 	else
 		seq_printf(m, "stepping\t: unknown\n");
-	
-	if (cpu_has(c,X86_FEATURE_TSC)) {
+
+	if (cpu_has(c, X86_FEATURE_TSC)) {
 		unsigned int freq = cpufreq_quick_get((unsigned)cpu);
+
 		if (!freq)
 			freq = cpu_khz;
 		seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
-			     freq / 1000, (freq % 1000));
+			   freq / 1000, (freq % 1000));
 	}
 
 	/* Cache size */
-	if (c->x86_cache_size >= 0) 
+	if (c->x86_cache_size >= 0)
 		seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
-	
+
 #ifdef CONFIG_SMP
 	if (smp_num_siblings * c->x86_max_cores > 1) {
 		seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
@@ -1120,48 +1128,43 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
 		seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
 	}
-#endif	
+#endif
 
 	seq_printf(m,
-	        "fpu\t\t: yes\n"
-	        "fpu_exception\t: yes\n"
-	        "cpuid level\t: %d\n"
-	        "wp\t\t: yes\n"
-	        "flags\t\t:",
+		   "fpu\t\t: yes\n"
+		   "fpu_exception\t: yes\n"
+		   "cpuid level\t: %d\n"
+		   "wp\t\t: yes\n"
+		   "flags\t\t:",
 		   c->cpuid_level);
 
-	{ 
-		int i; 
-		for ( i = 0 ; i < 32*NCAPINTS ; i++ )
-			if (cpu_has(c, i) && x86_cap_flags[i] != NULL)
-				seq_printf(m, " %s", x86_cap_flags[i]);
-	}
-		
+	for (i = 0; i < 32*NCAPINTS; i++)
+		if (cpu_has(c, i) && x86_cap_flags[i] != NULL)
+			seq_printf(m, " %s", x86_cap_flags[i]);
+
 	seq_printf(m, "\nbogomips\t: %lu.%02lu\n",
 		   c->loops_per_jiffy/(500000/HZ),
 		   (c->loops_per_jiffy/(5000/HZ)) % 100);
 
-	if (c->x86_tlbsize > 0) 
+	if (c->x86_tlbsize > 0)
 		seq_printf(m, "TLB size\t: %d 4K pages\n", c->x86_tlbsize);
 	seq_printf(m, "clflush size\t: %d\n", c->x86_clflush_size);
 	seq_printf(m, "cache_alignment\t: %d\n", c->x86_cache_alignment);
 
-	seq_printf(m, "address sizes\t: %u bits physical, %u bits virtual\n", 
+	seq_printf(m, "address sizes\t: %u bits physical, %u bits virtual\n",
 		   c->x86_phys_bits, c->x86_virt_bits);
 
 	seq_printf(m, "power management:");
-	{
-		unsigned i;
-		for (i = 0; i < 32; i++) 
-			if (c->x86_power & (1 << i)) {
-				if (i < ARRAY_SIZE(x86_power_flags) &&
-					x86_power_flags[i])
-					seq_printf(m, "%s%s",
-						x86_power_flags[i][0]?" ":"",
-						x86_power_flags[i]);
-				else
-					seq_printf(m, " [%d]", i);
-			}
+	for (i = 0; i < 32; i++) {
+		if (c->x86_power & (1 << i)) {
+			if (i < ARRAY_SIZE(x86_power_flags) &&
+			    x86_power_flags[i])
+				seq_printf(m, "%s%s",
+					   x86_power_flags[i][0]?" ":"",
+					   x86_power_flags[i]);
+			else
+				seq_printf(m, " [%d]", i);
+		}
 	}
 
 	seq_printf(m, "\n\n");
@@ -1189,7 +1192,7 @@ static void c_stop(struct seq_file *m, void *v)
 }
 
 struct seq_operations cpuinfo_op = {
-	.start =c_start,
+	.start = c_start,
 	.next =	c_next,
 	.stop =	c_stop,
 	.show =	show_cpuinfo,
-- 
cgit v1.2.3-59-g8ed1b


From 1c69524c2e5b83e52a098ebdeb4a8b52169f6a03 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:30:39 +0100
Subject: x86: clear IO_APIC before enabing apic error vector.

4 socket quad core, 8 socket quad core will do apic ID lifting for BSP.

But io-apic regs for ExtINT still use 0 as dest.

so when we enable apic error vector in BSP, we will get one APIC error.

CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 512K (64 bytes/line)
CPU 0/4 -> Node 0
CPU: Physical Processor ID: 1
CPU: Processor Core ID: 0
SMP alternatives: switching to UP code
ACPI: Core revision 20070126
enabled ExtINT on CPU#0
ESR value after enabling vector: 00000000, after 0000000c
APIC error on CPU0: 0c(08)
ENABLING IO-APIC IRQs
Synchronizing Arb IDs.

So move enable_IO_APIC from setup_IO_APIC into setup_local_APIC and call it
before enabling the ACPI error vector.

[ tglx: arch/x86 adaptation ]

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic_64.c    | 7 +++++++
 arch/x86/kernel/io_apic_64.c | 7 +++++--
 include/asm-x86/hw_irq_64.h  | 1 +
 3 files changed, 13 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 915808bd8a2a..994298bf4921 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -774,6 +774,13 @@ void __cpuinit setup_local_APIC(void)
 		value = APIC_DM_NMI | APIC_LVT_MASKED;
 	apic_write(APIC_LVT1, value);
 
+	/*
+	 * Now enable IO-APICs, actually call clear_IO_APIC
+	 * We need clear_IO_APIC before enabling vector on BP
+	 */
+	if (!smp_processor_id() && !skip_ioapic_setup && nr_ioapics)
+		enable_IO_APIC();
+
 	{
 		unsigned oldvalue;
 		maxlvt = lapic_get_maxlvt();
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index 3e471d0fb150..4ef85a3b3f9f 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -1172,7 +1172,7 @@ void __apicdebuginit print_PIC(void)
 
 #endif  /*  0  */
 
-static void __init enable_IO_APIC(void)
+void __init enable_IO_APIC(void)
 {
 	union IO_APIC_reg_01 reg_01;
 	int i8259_apic, i8259_pin;
@@ -1789,7 +1789,10 @@ __setup("no_timer_check", notimercheck);
 
 void __init setup_IO_APIC(void)
 {
-	enable_IO_APIC();
+
+	/*
+	 * calling enable_IO_APIC() is moved to setup_local_APIC for BP
+	 */
 
 	if (acpi_ioapic)
 		io_apic_irqs = ~0;	/* all IRQs go through IOAPIC */
diff --git a/include/asm-x86/hw_irq_64.h b/include/asm-x86/hw_irq_64.h
index a470d59da678..a346159b6ac3 100644
--- a/include/asm-x86/hw_irq_64.h
+++ b/include/asm-x86/hw_irq_64.h
@@ -135,6 +135,7 @@ extern void init_8259A(int aeoi);
 extern void send_IPI_self(int vector);
 extern void init_VISWS_APIC_irqs(void);
 extern void setup_IO_APIC(void);
+extern void enable_IO_APIC(void);
 extern void disable_IO_APIC(void);
 extern void print_IO_APIC(void);
 extern int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn);
-- 
cgit v1.2.3-59-g8ed1b


From 8c4385d7f5b77415156c9b900016cc8161d49f17 Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@stusta.de>
Date: Wed, 30 Jan 2008 13:30:39 +0100
Subject: x86: remove -maccumulate-outgoing-args on 32-bit

Contrary to the comment "newer gccs do it by default", newer gcc versions
default to -maccumulate-outgoing-args only with CONFIG_CC_OPTIMIZE_FOR_SIZE=n,
and then only with some CPU settings.

Measured with an i386 defconfig, gcc 4.2.1 and kernel 2.6.23-rc1 ("orig" is
the plain kernel, "changed is with -maccumulate-outgoing-args removed):

$ ls -la vmlinux*
-rwxrwxr-x 1 bunk bunk 6269713 2007-07-24 22:19 vmlinux.changed
-rwxrwxr-x 1 bunk bunk 6425361 2007-07-24 22:19 vmlinux.orig
$ size vmlinux.*
   text    data     bss     dec     hex filename
4493465  504108  614400 5611973  55a1c5 vmlinux.changed
4646160  504108  614400 5764668  57f63c vmlinux.orig
$

That's a 2.5% size increase that does for sure hurt small systems.

If the stack unwinder ever comes back and needs this as indicated in the
comment, adding it to the cflags when the user enabled the unwinder should be
a better option.

[ tglx: arch/x86 adaptation ]

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Makefile_32 | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Makefile_32 b/arch/x86/Makefile_32
index f806ceccff7a..b152db71d5b5 100644
--- a/arch/x86/Makefile_32
+++ b/arch/x86/Makefile_32
@@ -48,10 +48,6 @@ include $(srctree)/arch/x86/Makefile_32.cpu
 # temporary until string.h is fixed
 cflags-y += -ffreestanding
 
-# this works around some issues with generating unwind tables in older gccs
-# newer gccs do it by default
-cflags-y += -maccumulate-outgoing-args
-
 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
 # a lot more stack due to the lack of sharing of stacklots:
 KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
-- 
cgit v1.2.3-59-g8ed1b


From a860b63c41f241c685245127a3d32f352cb04c12 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yhlu.kernel@gmail.com>
Date: Wed, 30 Jan 2008 13:30:39 +0100
Subject: x86: store core id bits in cpuinfo_x8

We need to store core id bits to cpuinfo_x86 in early_identify_cpu. So we
use it to create acpiid_to_node array in k8topolgy.c

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c     | 72 +++++++++++++++++++++++++++---------------
 include/asm-x86/processor_64.h |  1 +
 2 files changed, 48 insertions(+), 25 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 62db062ba138..84f66b7b4d2e 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -542,18 +542,7 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
 	int node = 0;
 	unsigned apicid = hard_smp_processor_id();
 #endif
-	unsigned ecx = cpuid_ecx(0x80000008);
-
-	c->x86_max_cores = (ecx & 0xff) + 1;
-
-	/* CPU telling us the core id bits shift? */
-	bits = (ecx >> 12) & 0xF;
-
-	/* Otherwise recompute */
-	if (bits == 0) {
-		while ((1 << bits) < c->x86_max_cores)
-			bits++;
-	}
+	bits = c->x86_coreid_bits;
 
 	/* Low order bits define the core id (index of core in socket) */
 	c->cpu_core_id = c->phys_proc_id & ((1 << bits)-1);
@@ -591,6 +580,33 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
 #endif
 }
 
+static void __cpuinit early_init_amd(struct cpuinfo_x86 *c)
+{
+#ifdef CONFIG_SMP
+	unsigned bits, ecx;
+
+	/* Multi core CPU? */
+	if (c->extended_cpuid_level < 0x80000008)
+		return;
+
+	ecx = cpuid_ecx(0x80000008);
+
+	c->x86_max_cores = (ecx & 0xff) + 1;
+
+	/* CPU telling us the core id bits shift? */
+	bits = (ecx >> 12) & 0xF;
+
+	/* Otherwise recompute */
+	if (bits == 0) {
+		while ((1 << bits) < c->x86_max_cores)
+			bits++;
+	}
+
+	c->x86_coreid_bits = bits;
+
+#endif
+}
+
 #define ENABLE_C1E_MASK		0x18000000
 #define CPUID_PROCESSOR_SIGNATURE	1
 #define CPUID_XFAM		0x0ff00000
@@ -858,7 +874,7 @@ struct cpu_model_info {
    below. */
 static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
 {
-	u32 tfms;
+	u32 tfms, xlvl;
 
 	c->loops_per_jiffy = loops_per_jiffy;
 	c->x86_cache_size = -1;
@@ -869,6 +885,7 @@ static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
 	c->x86_clflush_size = 64;
 	c->x86_cache_alignment = c->x86_clflush_size;
 	c->x86_max_cores = 1;
+	c->x86_coreid_bits = 0;
 	c->extended_cpuid_level = 0;
 	memset(&c->x86_capability, 0, sizeof c->x86_capability);
 
@@ -905,18 +922,6 @@ static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
 #ifdef CONFIG_SMP
 	c->phys_proc_id = (cpuid_ebx(1) >> 24) & 0xff;
 #endif
-}
-
-/*
- * This does the hard work of actually picking apart the CPU stuff...
- */
-void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
-{
-	int i;
-	u32 xlvl;
-
-	early_identify_cpu(c);
-
 	/* AMD-defined flags: level 0x80000001 */
 	xlvl = cpuid_eax(0x80000000);
 	c->extended_cpuid_level = xlvl;
@@ -937,6 +942,23 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 			c->x86_capability[2] = cpuid_edx(0x80860001);
 	}
 
+	switch (c->x86_vendor) {
+	case X86_VENDOR_AMD:
+		early_init_amd(c);
+		break;
+	}
+
+}
+
+/*
+ * This does the hard work of actually picking apart the CPU stuff...
+ */
+void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
+{
+	int i;
+
+	early_identify_cpu(c);
+
 	init_scattered_cpuid_features(c);
 
 	c->apicid = phys_pkg_id(0);
diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h
index 6c0d96a7af63..2ae8ceb8a74e 100644
--- a/include/asm-x86/processor_64.h
+++ b/include/asm-x86/processor_64.h
@@ -61,6 +61,7 @@ struct cpuinfo_x86 {
 	int	x86_tlbsize;	/* number of 4K pages in DTLB/ITLB combined(in pages)*/
         __u8    x86_virt_bits, x86_phys_bits;
 	__u8	x86_max_cores;	/* cpuid returned max cores value */
+	__u8	x86_coreid_bits; /* cpuid returned core id bits */
         __u32   x86_power; 	
 	__u32   extended_cpuid_level;	/* Max extended CPUID function supported */
 	unsigned long loops_per_jiffy;
-- 
cgit v1.2.3-59-g8ed1b


From 3f6e5a12b8384ab9816ba6703f4b4be87ac94b5a Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yhlu.kernel@gmail.com>
Date: Wed, 30 Jan 2008 13:30:39 +0100
Subject: x86: use core id bits for apicid_to_node initialization

We shoud use core id bits instead of max cores, in case later with AMD
downcores Quad core Opteron.

[ tglx: arch/x86 adaptation ]

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/k8topology_64.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/k8topology_64.c b/arch/x86/mm/k8topology_64.c
index a96006f7ae0c..3695c9e8b9b6 100644
--- a/arch/x86/mm/k8topology_64.c
+++ b/arch/x86/mm/k8topology_64.c
@@ -44,12 +44,14 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
 { 
 	unsigned long prevbase;
 	struct bootnode nodes[8];
-	int nodeid, i, j, nb;
+	int nodeid, i, nb;
 	unsigned char nodeids[8];
 	int found = 0;
 	u32 reg;
 	unsigned numnodes;
-	unsigned num_cores;
+	unsigned cores;
+	unsigned bits;
+	int j;
 
 	if (!early_pci_allowed())
 		return -1;
@@ -60,9 +62,6 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
 
 	printk(KERN_INFO "Scanning NUMA topology in Northbridge %d\n", nb); 
 
-	num_cores = (cpuid_ecx(0x80000008) & 0xff) + 1;
-	printk(KERN_INFO "CPU has %d num_cores\n", num_cores);
-
 	reg = read_pci_config(0, nb, 0, 0x60); 
 	numnodes = ((reg >> 4) & 0xF) + 1;
 	if (numnodes <= 1)
@@ -168,11 +167,15 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
 	} 
 	printk(KERN_INFO "Using node hash shift of %d\n", memnode_shift); 
 
+	/* use the coreid bits from early_identify_cpu */
+	bits = boot_cpu_data.x86_coreid_bits;
+	cores = (1<<bits);
+
 	for (i = 0; i < 8; i++) {
 		if (nodes[i].start != nodes[i].end) { 
 			nodeid = nodeids[i];
-			for (j = 0; j < num_cores; j++)
-				apicid_to_node[(nodeid * num_cores) + j] = i;
+			for (j = 0; j < cores; j++)
+				apicid_to_node[(nodeid << bits) + j] = i;
 			setup_node_bootmem(i, nodes[i].start, nodes[i].end); 
 		} 
 	}
-- 
cgit v1.2.3-59-g8ed1b


From 739f33b38bf88312447e38ae8b7ac3acdbb72a6b Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:30:40 +0100
Subject: x86: untable __init references between IO data

Earlier patch added IO APIC setup into local APIC setup. This caused
modpost warnings. Fix them by untangling setup_local_APIC() and splitting
it into smaller functions. The IO APIC initialization is only called
for the BP init.

Also removed some outdated debugging code and minor cleanup.

[ tglx: arch/x86 adaptation ]

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic_64.c    | 46 ++++++++++++++++++++++----------------------
 arch/x86/kernel/smpboot_64.c |  8 ++++++++
 include/asm-x86/apic.h       |  1 +
 3 files changed, 32 insertions(+), 23 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 994298bf4921..d341f798255c 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -677,7 +677,7 @@ void __init init_bsp_APIC(void)
  */
 void __cpuinit setup_local_APIC(void)
 {
-	unsigned int value, maxlvt;
+	unsigned int value;
 	int i, j;
 
 	value = apic_read(APIC_LVR);
@@ -773,32 +773,23 @@ void __cpuinit setup_local_APIC(void)
 	else
 		value = APIC_DM_NMI | APIC_LVT_MASKED;
 	apic_write(APIC_LVT1, value);
+}
+
+void __cpuinit lapic_setup_esr(void)
+{
+	unsigned maxlvt = lapic_get_maxlvt();
 
+	apic_write(APIC_LVTERR, ERROR_APIC_VECTOR);
 	/*
-	 * Now enable IO-APICs, actually call clear_IO_APIC
-	 * We need clear_IO_APIC before enabling vector on BP
+	 * spec says clear errors after enabling vector.
 	 */
-	if (!smp_processor_id() && !skip_ioapic_setup && nr_ioapics)
-		enable_IO_APIC();
-
-	{
-		unsigned oldvalue;
-		maxlvt = lapic_get_maxlvt();
-		oldvalue = apic_read(APIC_ESR);
-		value = ERROR_APIC_VECTOR;      // enables sending errors
-		apic_write(APIC_LVTERR, value);
-		/*
-		 * spec says clear errors after enabling vector.
-		 */
-		if (maxlvt > 3)
-			apic_write(APIC_ESR, 0);
-		value = apic_read(APIC_ESR);
-		if (value != oldvalue)
-			apic_printk(APIC_VERBOSE,
-			"ESR value after enabling vector: %08x, after %08x\n",
-			oldvalue, value);
-	}
+	if (maxlvt > 3)
+		apic_write(APIC_ESR, 0);
+}
 
+void __cpuinit end_local_APIC_setup(void)
+{
+	lapic_setup_esr();
 	nmi_watchdog_default();
 	setup_apic_nmi_watchdog(NULL);
 	apic_pm_activate();
@@ -879,6 +870,15 @@ int __init APIC_init_uniprocessor(void)
 
 	setup_local_APIC();
 
+	/*
+	 * Now enable IO-APICs, actually call clear_IO_APIC
+	 * We need clear_IO_APIC before enabling vector on BP
+	 */
+	if (!skip_ioapic_setup && nr_ioapics)
+		enable_IO_APIC();
+
+	end_local_APIC_setup();
+
 	if (smp_found_config && !skip_ioapic_setup && nr_ioapics)
 		setup_IO_APIC();
 	else
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index 7552db9ee9ff..ddefb38c53fb 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -210,6 +210,7 @@ void __cpuinit smp_callin(void)
 
 	Dprintk("CALLIN, before setup_local_APIC().\n");
 	setup_local_APIC();
+	end_local_APIC_setup();
 
 	/*
 	 * Get our bogomips.
@@ -884,6 +885,13 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 	 */
 	setup_local_APIC();
 
+	/*
+	 * Enable IO APIC before setting up error vector
+	 */
+	if (!skip_ioapic_setup && nr_ioapics)
+		enable_IO_APIC();
+	end_local_APIC_setup();
+
 	if (GET_APIC_ID(apic_read(APIC_ID)) != boot_cpu_id) {
 		panic("Boot APIC ID in local APIC unexpected (%d vs %d)",
 		      GET_APIC_ID(apic_read(APIC_ID)), boot_cpu_id);
diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h
index 18d932dff476..5e8192d36e5a 100644
--- a/include/asm-x86/apic.h
+++ b/include/asm-x86/apic.h
@@ -112,6 +112,7 @@ extern void cache_APIC_registers(void);
 extern void sync_Arb_IDs(void);
 extern void init_bsp_APIC(void);
 extern void setup_local_APIC(void);
+extern void end_local_APIC_setup(void);
 extern void init_apic_mappings(void);
 extern void setup_boot_APIC_clock(void);
 extern void setup_secondary_APIC_clock(void);
-- 
cgit v1.2.3-59-g8ed1b


From 7b83dae7aa31db4f6d6e78c3c6d490a7ac58699c Mon Sep 17 00:00:00 2001
From: Robert Richter <robert.richter@amd.com>
Date: Wed, 30 Jan 2008 13:30:40 +0100
Subject: x86: extended interrupt LVT support for AMD Barcelona

Also macro definitions in apicdef.h has been updated.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic_64.c               | 26 ++++++++++++++++++++++----
 arch/x86/kernel/cpu/mcheck/mce_amd_64.c | 10 +++++-----
 include/asm-x86/apic.h                  |  4 ++--
 include/asm-x86/apicdef.h               | 19 ++++++++++++-------
 4 files changed, 41 insertions(+), 18 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index d341f798255c..027004262105 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -187,17 +187,35 @@ static void __setup_APIC_LVTT(unsigned int clocks, int oneshot, int irqen)
 }
 
 /*
- * Setup extended LVT (K8 specific)
+ * Setup extended LVT, AMD specific (K8, family 10h)
+ *
+ * Vector mappings are hard coded. On K8 only offset 0 (APIC500) and
+ * MCE interrupts are supported. Thus MCE offset must be set to 0.
  */
-void setup_APIC_extended_lvt(unsigned char lvt_off, unsigned char vector,
-			     unsigned char msg_type, unsigned char mask)
+
+#define APIC_EILVT_LVTOFF_MCE 0
+#define APIC_EILVT_LVTOFF_IBS 1
+
+static void setup_APIC_eilvt(u8 lvt_off, u8 vector, u8 msg_type, u8 mask)
 {
-	unsigned long reg = (lvt_off << 4) + K8_APIC_EXT_LVT_BASE;
+	unsigned long reg = (lvt_off << 4) + APIC_EILVT0;
 	unsigned int  v   = (mask << 16) | (msg_type << 8) | vector;
 
 	apic_write(reg, v);
 }
 
+u8 setup_APIC_eilvt_mce(u8 vector, u8 msg_type, u8 mask)
+{
+	setup_APIC_eilvt(APIC_EILVT_LVTOFF_MCE, vector, msg_type, mask);
+	return APIC_EILVT_LVTOFF_MCE;
+}
+
+u8 setup_APIC_eilvt_ibs(u8 vector, u8 msg_type, u8 mask)
+{
+	setup_APIC_eilvt(APIC_EILVT_LVTOFF_IBS, vector, msg_type, mask);
+	return APIC_EILVT_LVTOFF_IBS;
+}
+
 /*
  * Program the next event, relative to now
  */
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index 073afa7dd89a..550502596ca3 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -118,6 +118,7 @@ void __cpuinit mce_amd_feature_init(struct cpuinfo_x86 *c)
 {
 	unsigned int bank, block;
 	unsigned int cpu = smp_processor_id();
+	u8 lvt_off;
 	u32 low = 0, high = 0, address = 0;
 
 	for (bank = 0; bank < NR_BANKS; ++bank) {
@@ -153,14 +154,13 @@ void __cpuinit mce_amd_feature_init(struct cpuinfo_x86 *c)
 			if (shared_bank[bank] && c->cpu_core_id)
 				break;
 #endif
+			lvt_off = setup_APIC_eilvt_mce(THRESHOLD_APIC_VECTOR,
+						       APIC_EILVT_MSG_FIX, 0);
+
 			high &= ~MASK_LVTOFF_HI;
-			high |= K8_APIC_EXT_LVT_ENTRY_THRESHOLD << 20;
+			high |= lvt_off << 20;
 			wrmsr(address, low, high);
 
-			setup_APIC_extended_lvt(K8_APIC_EXT_LVT_ENTRY_THRESHOLD,
-						THRESHOLD_APIC_VECTOR,
-						K8_APIC_EXT_INT_MSG_FIX, 0);
-
 			threshold_defaults.address = address;
 			threshold_restart_bank(&threshold_defaults, 0, 0);
 		}
diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h
index 5e8192d36e5a..423022759cb2 100644
--- a/include/asm-x86/apic.h
+++ b/include/asm-x86/apic.h
@@ -126,8 +126,8 @@ extern void enable_NMI_through_LVT0(void *dummy);
 extern void setup_apic_routing(void);
 #endif
 
-extern void setup_APIC_extended_lvt(unsigned char lvt_off, unsigned char vector,
-				    unsigned char msg_type, unsigned char mask);
+extern u8 setup_APIC_eilvt_mce(u8 vector, u8 msg_type, u8 mask);
+extern u8 setup_APIC_eilvt_ibs(u8 vector, u8 msg_type, u8 mask);
 
 extern int apic_is_clustered_box(void);
 
diff --git a/include/asm-x86/apicdef.h b/include/asm-x86/apicdef.h
index 5f7abe9b5f87..550af7a6f88e 100644
--- a/include/asm-x86/apicdef.h
+++ b/include/asm-x86/apicdef.h
@@ -116,13 +116,18 @@
 #define		APIC_TDR_DIV_32		0x8
 #define		APIC_TDR_DIV_64		0x9
 #define		APIC_TDR_DIV_128	0xA
-
-#define K8_APIC_EXT_LVT_BASE		0x500
-#define K8_APIC_EXT_INT_MSG_FIX		0x0
-#define K8_APIC_EXT_INT_MSG_SMI		0x2
-#define K8_APIC_EXT_INT_MSG_NMI		0x4
-#define K8_APIC_EXT_INT_MSG_EXT		0x7
-#define K8_APIC_EXT_LVT_ENTRY_THRESHOLD	0
+#define	APIC_EILVT0     0x500
+#define		APIC_EILVT_NR_AMD_K8	1	/* Number of extended interrupts */
+#define		APIC_EILVT_NR_AMD_10H	4
+#define		APIC_EILVT_LVTOFF(x)	(((x)>>4)&0xF)
+#define		APIC_EILVT_MSG_FIX	0x0
+#define		APIC_EILVT_MSG_SMI	0x2
+#define		APIC_EILVT_MSG_NMI	0x4
+#define		APIC_EILVT_MSG_EXT	0x7
+#define		APIC_EILVT_MASKED	(1<<16)
+#define	APIC_EILVT1     0x510
+#define	APIC_EILVT2     0x520
+#define	APIC_EILVT3     0x530
 
 #define APIC_BASE (fix_to_virt(FIX_APIC_BASE))
 
-- 
cgit v1.2.3-59-g8ed1b


From c1d171a002942ea2d93b4fbd0c9583c56fce0772 Mon Sep 17 00:00:00 2001
From: Jiri Kosina <jkosina@suse.cz>
Date: Wed, 30 Jan 2008 13:30:40 +0100
Subject: x86: randomize brk

Randomize the location of the heap (brk) for i386 and x86_64.  The range is
randomized in the range starting at current brk location up to 0x02000000
offset for both architectures.  This, together with
pie-executable-randomization.patch and
pie-executable-randomization-fix.patch, should make the address space
randomization on i386 and x86_64 complete.

Arjan says:

This is known to break older versions of some emacs variants, whose dumper
code assumed that the last variable declared in the program is equal to the
start of the dynamically allocated memory region.

(The dumper is the code where emacs effectively dumps core at the end of it's
compilation stage; this coredump is then loaded as the main program during
normal use)

iirc this was 5 years or so; we found this way back when I was at RH and we
first did the security stuff there (including this brk randomization).  It
wasn't all variants of emacs, and it got fixed as a result (I vaguely remember
that emacs already had code to deal with it for other archs/oses, just
ifdeffed wrongly).

It's a rare and wrong assumption as a general thing, just on x86 it mostly
happened to be true (but to be honest, it'll break too if gcc does
something fancy or if the linker does a non-standard order).  Still its
something we should at least document.

Note 2: afaik it only broke the emacs *build*.  I'm not 100% sure about that
(it IS 5 years ago) though.

[ akpm@linux-foundation.org: deuglification ]

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Roland McGrath <roland@redhat.com>
Cc: Jakub Jelinek <jakub@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_32.c | 7 +++++++
 arch/x86/kernel/process_64.c | 7 +++++++
 fs/binfmt_elf.c              | 6 ++++++
 include/asm-x86/elf.h        | 3 +++
 mm/mmap.c                    | 3 ++-
 5 files changed, 25 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index a8cdd09ad53f..631af167bc51 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -992,3 +992,10 @@ unsigned long arch_align_stack(unsigned long sp)
 		sp -= get_random_int() % 8192;
 	return sp & ~0xf;
 }
+
+unsigned long arch_randomize_brk(struct mm_struct *mm)
+{
+	unsigned long range_end = mm->brk + 0x02000000;
+	return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
+}
+
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 98d85952f574..aa9414ed74c7 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -914,3 +914,10 @@ unsigned long arch_align_stack(unsigned long sp)
 		sp -= get_random_int() % 8192;
 	return sp & ~0xf;
 }
+
+unsigned long arch_randomize_brk(struct mm_struct *mm)
+{
+	unsigned long range_end = mm->brk + 0x02000000;
+	return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
+}
+
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index f0b3171842f2..043a800c8f71 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1021,6 +1021,12 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 	current->mm->end_data = end_data;
 	current->mm->start_stack = bprm->p;
 
+#ifdef arch_randomize_brk
+	if (current->flags & PF_RANDOMIZE)
+		current->mm->brk = current->mm->start_brk =
+			arch_randomize_brk(current->mm);
+#endif
+
 	if (current->personality & MMAP_PAGE_ZERO) {
 		/* Why this, you ask???  Well SVr4 maps page 0 as read-only,
 		   and some applications "depend" upon this behavior.
diff --git a/include/asm-x86/elf.h b/include/asm-x86/elf.h
index ec42a4d2e83b..cd3204ebbbdd 100644
--- a/include/asm-x86/elf.h
+++ b/include/asm-x86/elf.h
@@ -285,6 +285,9 @@ struct linux_binprm;
 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
 				       int executable_stack);
 
+extern unsigned long arch_randomize_brk(struct mm_struct *mm);
+#define arch_randomize_brk arch_randomize_brk
+
 #endif /* __KERNEL__ */
 
 #endif
diff --git a/mm/mmap.c b/mm/mmap.c
index bfa389fc6ded..d2b6d44962b7 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -251,7 +251,8 @@ asmlinkage unsigned long sys_brk(unsigned long brk)
 	 * not page aligned -Ram Gupta
 	 */
 	rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
-	if (rlim < RLIM_INFINITY && brk - mm->start_data > rlim)
+	if (rlim < RLIM_INFINITY && (brk - mm->start_brk) +
+			(mm->end_data - mm->start_data) > rlim)
 		goto out;
 
 	newbrk = PAGE_ALIGN(brk);
-- 
cgit v1.2.3-59-g8ed1b


From 5b93049337301d6fbd3cf55db99b34e6b0dbd3a3 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:40 +0100
Subject: x86 vDSO: generate vdso-syms.lds

This patch adds a new way of extracting symbols from the built vDSO image.
This is much simpler and less fragile than using ld -R; it removes the
need to control the DSO layout quite so exactly.  I was clearly unduly
distracted by clever ld uses when I did the original vDSO implementation.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/vdso/Makefile   | 14 ++++++++++++++
 arch/x86/vdso/vdso.lds.S | 10 ++++++++++
 2 files changed, 24 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index e7bff0fbac23..d8200adae9fa 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -55,6 +55,20 @@ SYSCFLAGS_vdso-syms.o = -r -d
 $(obj)/vdso-syms.o: $(src)/vdso.lds $(vobjs) FORCE
 	$(call if_changed,syscall)
 
+targets += vdso-syms.lds
+obj-y += vdso-syms.lds
+
+#
+# Match symbols in the DSO that look like VDSO*; produce a file of constants.
+#
+sed-vdsosym := -e 's/^00*/0/' \
+	-e 's/^\([0-9a-fA-F]*\) . \(VDSO[a-zA-Z0-9_]*\)$$/\2 = 0x\1;/p'
+quiet_cmd_vdsosym = VDSOSYM $@
+      cmd_vdsosym = $(NM) $< | sed -n $(sed-vdsosym) | LC_ALL=C sort > $@
+
+$(obj)/%-syms.lds: $(obj)/%.so.dbg FORCE
+	$(call if_changed,vdsosym)
+
 quiet_cmd_vdso_install = INSTALL $@
       cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@
 vdso.so:
diff --git a/arch/x86/vdso/vdso.lds.S b/arch/x86/vdso/vdso.lds.S
index 667d3245d972..d40d0e906190 100644
--- a/arch/x86/vdso/vdso.lds.S
+++ b/arch/x86/vdso/vdso.lds.S
@@ -8,6 +8,16 @@
 
 #define VDSO_PRELINK 0xffffffffff700000
 
+/*
+ * Symbols we define here called VDSO* get their values into vdso-syms.lds
+ * and become visible to the kernel itself.
+ */
+VDSO64_PRELINK = VDSO_PRELINK;
+
+#define VEXTERN(x)	VDSO64_ ## x = vdso_ ## x;
+#include "vextern.h"
+#undef	VEXTERN
+
 SECTIONS
 {
   . = VDSO_PRELINK + SIZEOF_HEADERS;
-- 
cgit v1.2.3-59-g8ed1b


From 7f3646aa16f496201e045183402c6614fa27b0c7 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:41 +0100
Subject: x86 vDSO: use vdso-syms.lds

This patch changes the kernel's references to addresses in the vDSO image
to be based on the symbols defined by vdso-syms.lds instead of the old
vdso-syms.o symbols.  This is all wrapped up in a macro defined by the new
asm-x86/vdso.h header; that's the only place in the kernel source that has
to know the details of the scheme for getting vDSO symbol values.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/vdso/Makefile     |  3 +--
 arch/x86/vdso/vdso-start.S |  2 --
 arch/x86/vdso/vma.c        | 18 +++++++-----------
 include/asm-x86/vdso.h     | 14 ++++++++++++++
 4 files changed, 22 insertions(+), 15 deletions(-)
 delete mode 100644 arch/x86/vdso/vdso-start.S
 create mode 100644 include/asm-x86/vdso.h

(limited to 'arch')

diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index d8200adae9fa..d2ec17044adc 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -3,8 +3,7 @@
 #
 
 # files to link into the vdso
-# vdso-start.o has to be first
-vobjs-y := vdso-start.o vdso-note.o vclock_gettime.o vgetcpu.o vvar.o
+vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o vvar.o
 
 # files to link into kernel
 obj-y := vma.o vdso.o vdso-syms.o
diff --git a/arch/x86/vdso/vdso-start.S b/arch/x86/vdso/vdso-start.S
deleted file mode 100644
index 2dc2cdb84d67..000000000000
--- a/arch/x86/vdso/vdso-start.S
+++ /dev/null
@@ -1,2 +0,0 @@
-	.globl vdso_kernel_start
-vdso_kernel_start:
diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
index ff9333e5fb08..3fdd51497a83 100644
--- a/arch/x86/vdso/vma.c
+++ b/arch/x86/vdso/vma.c
@@ -11,23 +11,20 @@
 #include <asm/vsyscall.h>
 #include <asm/vgtod.h>
 #include <asm/proto.h>
-#include "voffset.h"
+#include <asm/vdso.h>
 
-int vdso_enabled = 1;
-
-#define VEXTERN(x) extern typeof(__ ## x) *vdso_ ## x;
-#include "vextern.h"
+#include "vextern.h"		/* Just for VMAGIC.  */
 #undef VEXTERN
 
-extern char vdso_kernel_start[], vdso_start[], vdso_end[];
+int vdso_enabled = 1;
+
+extern char vdso_start[], vdso_end[];
 extern unsigned short vdso_sync_cpuid;
 
 struct page **vdso_pages;
 
-static inline void *var_ref(void *vbase, char *var, char *name)
+static inline void *var_ref(void *p, char *name)
 {
-	unsigned offset = var - &vdso_kernel_start[0] + VDSO_TEXT_OFFSET;
-	void *p = vbase + offset;
 	if (*(void **)p != (void *)VMAGIC) {
 		printk("VDSO: variable %s broken\n", name);
 		vdso_enabled = 0;
@@ -62,9 +59,8 @@ static int __init init_vdso_vars(void)
 		vdso_enabled = 0;
 	}
 
-#define V(x) *(typeof(x) *) var_ref(vbase, (char *)RELOC_HIDE(&x, 0), #x)
 #define VEXTERN(x) \
-	V(vdso_ ## x) = &__ ## x;
+	*(typeof(__ ## x) **) var_ref(VDSO64_SYMBOL(vbase, x), #x) = &__ ## x;
 #include "vextern.h"
 #undef VEXTERN
 	return 0;
diff --git a/include/asm-x86/vdso.h b/include/asm-x86/vdso.h
new file mode 100644
index 000000000000..9379ec06fd1f
--- /dev/null
+++ b/include/asm-x86/vdso.h
@@ -0,0 +1,14 @@
+#ifndef _ASM_X86_VDSO_H
+#define _ASM_X86_VDSO_H	1
+
+extern const char VDSO64_PRELINK[];
+
+/*
+ * Given a pointer to the vDSO image, find the pointer to VDSO64_name
+ * as that symbol is defined in the vDSO sources or linker script.
+ */
+#define VDSO64_SYMBOL(base, name) ({		\
+	extern const char VDSO64_##name[];	\
+	(void *) (VDSO64_##name - VDSO64_PRELINK + (unsigned long) (base)); })
+
+#endif	/* asm-x86/vdso.h */
-- 
cgit v1.2.3-59-g8ed1b


From 2b9c97e16101e8dc2b0810d6f932d475a051d785 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:41 +0100
Subject: x86 vDSO: remove vdso-syms.o

Get rid of vdso-syms.o from the kernel link.  We don't need it any more.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/vdso/Makefile | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index d2ec17044adc..6a665dd09848 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -6,13 +6,13 @@
 vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o vvar.o
 
 # files to link into kernel
-obj-y := vma.o vdso.o vdso-syms.o
+obj-y := vma.o vdso.o
 
 vobjs := $(foreach F,$(vobjs-y),$(obj)/$F)
 
 $(obj)/vdso.o: $(obj)/vdso.so
 
-targets += vdso.so vdso.so.dbg vdso.lds $(vobjs-y) vdso-syms.o
+targets += vdso.so vdso.so.dbg vdso.lds $(vobjs-y)
 
 # The DSO images are built using a special linker script.
 quiet_cmd_syscall = SYSCALL $@
@@ -43,17 +43,6 @@ CFL := $(PROFILING) -mcmodel=small -fPIC -g0 -O2 -fasynchronous-unwind-tables -m
 $(obj)/vclock_gettime.o: KBUILD_CFLAGS = $(CFL)
 $(obj)/vgetcpu.o: KBUILD_CFLAGS = $(CFL)
 
-# We also create a special relocatable object that should mirror the symbol
-# table and layout of the linked DSO.  With ld -R we can then refer to
-# these symbols in the kernel code rather than hand-coded addresses.
-extra-y += vdso-syms.o
-$(obj)/built-in.o: $(obj)/vdso-syms.o
-$(obj)/built-in.o: ld_flags += -R $(obj)/vdso-syms.o
-
-SYSCFLAGS_vdso-syms.o = -r -d
-$(obj)/vdso-syms.o: $(src)/vdso.lds $(vobjs) FORCE
-	$(call if_changed,syscall)
-
 targets += vdso-syms.lds
 obj-y += vdso-syms.lds
 
-- 
cgit v1.2.3-59-g8ed1b


From f6b46ebf904f69a73907a5e6b1ed2228e3f03d9e Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:41 +0100
Subject: x86 vDSO: new layout

This revamps the vDSO linker script to lay things out with the best
packing of the data and good, separate alignment of the code.  The
rigid layout using VDSO_TEXT_OFFSET no longer matters to the kernel.
I've moved the layout parts of the linker script into a new include
file, vdso-layout.lds.S; this is in preparation for sharing the script
for the 32-bit vDSO builds too.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/vdso/vdso-layout.lds.S |  64 +++++++++++++++++++++++++
 arch/x86/vdso/vdso.lds.S        | 102 ++++++++++------------------------------
 arch/x86/vdso/voffset.h         |   1 -
 3 files changed, 89 insertions(+), 78 deletions(-)
 create mode 100644 arch/x86/vdso/vdso-layout.lds.S
 delete mode 100644 arch/x86/vdso/voffset.h

(limited to 'arch')

diff --git a/arch/x86/vdso/vdso-layout.lds.S b/arch/x86/vdso/vdso-layout.lds.S
new file mode 100644
index 000000000000..634a2cf62046
--- /dev/null
+++ b/arch/x86/vdso/vdso-layout.lds.S
@@ -0,0 +1,64 @@
+/*
+ * Linker script for vDSO.  This is an ELF shared object prelinked to
+ * its virtual address, and with only one read-only segment.
+ * This script controls its layout.
+ */
+
+SECTIONS
+{
+	. = VDSO_PRELINK + SIZEOF_HEADERS;
+
+	.hash		: { *(.hash) }			:text
+	.gnu.hash	: { *(.gnu.hash) }
+	.dynsym		: { *(.dynsym) }
+	.dynstr		: { *(.dynstr) }
+	.gnu.version	: { *(.gnu.version) }
+	.gnu.version_d	: { *(.gnu.version_d) }
+	.gnu.version_r	: { *(.gnu.version_r) }
+
+	.note		: { *(.note.*) }		:text	:note
+
+	.eh_frame_hdr	: { *(.eh_frame_hdr) }		:text	:eh_frame_hdr
+	.eh_frame	: { KEEP (*(.eh_frame)) }	:text
+
+	.dynamic	: { *(.dynamic) }		:text	:dynamic
+
+	.rodata		: { *(.rodata*) }		:text
+	.data		: {
+	      *(.data*)
+	      *(.sdata*)
+	      *(.got.plt) *(.got)
+	      *(.gnu.linkonce.d.*)
+	      *(.bss*)
+	      *(.dynbss*)
+	      *(.gnu.linkonce.b.*)
+	}
+
+	.altinstructions	: { *(.altinstructions) }
+	.altinstr_replacement	: { *(.altinstr_replacement) }
+
+	/*
+	 * Align the actual code well away from the non-instruction data.
+	 * This is the best thing for the I-cache.
+	 */
+	. = ALIGN(0x100);
+
+	.text		: { *(.text*) }			:text	=0x90909090
+}
+
+/*
+ * Very old versions of ld do not recognize this name token; use the constant.
+ */
+#define PT_GNU_EH_FRAME	0x6474e550
+
+/*
+ * We must supply the ELF program headers explicitly to get just one
+ * PT_LOAD segment, and set the flags explicitly to make segments read-only.
+ */
+PHDRS
+{
+	text		PT_LOAD		FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */
+	dynamic		PT_DYNAMIC	FLAGS(4);		/* PF_R */
+	note		PT_NOTE		FLAGS(4);		/* PF_R */
+	eh_frame_hdr	PT_GNU_EH_FRAME;
+}
diff --git a/arch/x86/vdso/vdso.lds.S b/arch/x86/vdso/vdso.lds.S
index d40d0e906190..4e5dd3b4de7f 100644
--- a/arch/x86/vdso/vdso.lds.S
+++ b/arch/x86/vdso/vdso.lds.S
@@ -1,89 +1,37 @@
 /*
- * Linker script for vsyscall DSO.  The vsyscall page is an ELF shared
- * object prelinked to its virtual address, and with only one read-only
- * segment (that fits in one page).  This script controls its layout.
+ * Linker script for 64-bit vDSO.
+ * We #include the file to define the layout details.
+ * Here we only choose the prelinked virtual address.
+ *
+ * This file defines the version script giving the user-exported symbols in
+ * the DSO.  We can define local symbols here called VDSO* to make their
+ * values visible using the asm-x86/vdso.h macros from the kernel proper.
  */
-#include <asm/asm-offsets.h>
-#include "voffset.h"
 
 #define VDSO_PRELINK 0xffffffffff700000
+#include "vdso-layout.lds.S"
 
 /*
- * Symbols we define here called VDSO* get their values into vdso-syms.lds
- * and become visible to the kernel itself.
+ * This controls what userland symbols we export from the vDSO.
  */
-VDSO64_PRELINK = VDSO_PRELINK;
-
-#define VEXTERN(x)	VDSO64_ ## x = vdso_ ## x;
-#include "vextern.h"
-#undef	VEXTERN
-
-SECTIONS
-{
-  . = VDSO_PRELINK + SIZEOF_HEADERS;
-
-  .hash           : { *(.hash) }		:text
-  .gnu.hash       : { *(.gnu.hash) }
-  .dynsym         : { *(.dynsym) }
-  .dynstr         : { *(.dynstr) }
-  .gnu.version    : { *(.gnu.version) }
-  .gnu.version_d  : { *(.gnu.version_d) }
-  .gnu.version_r  : { *(.gnu.version_r) }
-
-  /* This linker script is used both with -r and with -shared.
-     For the layouts to match, we need to skip more than enough
-     space for the dynamic symbol table et al.  If this amount
-     is insufficient, ld -shared will barf.  Just increase it here.  */
-  . = VDSO_PRELINK + VDSO_TEXT_OFFSET;
-
-  .text           : { *(.text*) }		:text
-  .rodata         : { *(.rodata*) }		:text
-  .data		  : {
-	*(.data*)
-	*(.sdata*)
-	*(.bss*)
-	*(.dynbss*)
-  }						:text
-
-  .altinstructions : { *(.altinstructions) }		:text
-  .altinstr_replacement  : { *(.altinstr_replacement) }	:text
-
-  .note		  : { *(.note.*) }		:text :note
-  .eh_frame_hdr   : { *(.eh_frame_hdr) }	:text :eh_frame_hdr
-  .eh_frame       : { KEEP (*(.eh_frame)) }	:text
-  .dynamic        : { *(.dynamic) }		:text :dynamic
-  .useless        : {
-  	*(.got.plt) *(.got)
-	*(.gnu.linkonce.d.*)
-	*(.gnu.linkonce.b.*)
-  }						:text
+VERSION {
+	LINUX_2.6 {
+	global:
+		clock_gettime;
+		__vdso_clock_gettime;
+		gettimeofday;
+		__vdso_gettimeofday;
+		getcpu;
+		__vdso_getcpu;
+	local: *;
+	};
 }
 
-/*
- * We must supply the ELF program headers explicitly to get just one
- * PT_LOAD segment, and set the flags explicitly to make segments read-only.
- */
-PHDRS
-{
-  text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */
-  dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
-  note PT_NOTE FLAGS(4); /* PF_R */
-  eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */
-}
+VDSO64_PRELINK = VDSO_PRELINK;
 
 /*
- * This controls what symbols we export from the DSO.
+ * Define VDSO64_x for each VEXTERN(x), for use via VDSO64_SYMBOL.
  */
-VERSION
-{
-  LINUX_2.6 {
-    global:
-	clock_gettime;
-	__vdso_clock_gettime;
-	gettimeofday;
-	__vdso_gettimeofday;
-	getcpu;
-	__vdso_getcpu;
-    local: *;
-  };
-}
+#define VEXTERN(x)	VDSO64_ ## x = vdso_ ## x;
+#include "vextern.h"
+#undef	VEXTERN
diff --git a/arch/x86/vdso/voffset.h b/arch/x86/vdso/voffset.h
deleted file mode 100644
index 4af67c79085f..000000000000
--- a/arch/x86/vdso/voffset.h
+++ /dev/null
@@ -1 +0,0 @@
-#define VDSO_TEXT_OFFSET 0x600
-- 
cgit v1.2.3-59-g8ed1b


From 108b545137b03ec1d6a5765017d57f86056bf57c Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:41 +0100
Subject: x86 vDSO: harmonize asm-offsets

This change harmonizes the asm-offsets macros used in the 32-bit vDSO
across 32-bit and 64-bit builds.  It's a purely cosmetic change for now,
but it paves the way for consolidating the 32-bit vDSO builds.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/asm-offsets_32.c        | 20 ++++++------
 arch/x86/kernel/vsyscall-sigreturn_32.S | 54 ++++++++++++++++-----------------
 2 files changed, 37 insertions(+), 37 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index c1ccfabb4a9e..4f750ec810f6 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -38,15 +38,15 @@ void foo(void);
 
 void foo(void)
 {
-	OFFSET(SIGCONTEXT_eax, sigcontext, eax);
-	OFFSET(SIGCONTEXT_ebx, sigcontext, ebx);
-	OFFSET(SIGCONTEXT_ecx, sigcontext, ecx);
-	OFFSET(SIGCONTEXT_edx, sigcontext, edx);
-	OFFSET(SIGCONTEXT_esi, sigcontext, esi);
-	OFFSET(SIGCONTEXT_edi, sigcontext, edi);
-	OFFSET(SIGCONTEXT_ebp, sigcontext, ebp);
-	OFFSET(SIGCONTEXT_esp, sigcontext, esp);
-	OFFSET(SIGCONTEXT_eip, sigcontext, eip);
+	OFFSET(IA32_SIGCONTEXT_eax, sigcontext, eax);
+	OFFSET(IA32_SIGCONTEXT_ebx, sigcontext, ebx);
+	OFFSET(IA32_SIGCONTEXT_ecx, sigcontext, ecx);
+	OFFSET(IA32_SIGCONTEXT_edx, sigcontext, edx);
+	OFFSET(IA32_SIGCONTEXT_esi, sigcontext, esi);
+	OFFSET(IA32_SIGCONTEXT_edi, sigcontext, edi);
+	OFFSET(IA32_SIGCONTEXT_ebp, sigcontext, ebp);
+	OFFSET(IA32_SIGCONTEXT_esp, sigcontext, esp);
+	OFFSET(IA32_SIGCONTEXT_eip, sigcontext, eip);
 	BLANK();
 
 	OFFSET(CPUINFO_x86, cpuinfo_x86, x86);
@@ -94,7 +94,7 @@ void foo(void)
 	BLANK();
 
 	OFFSET(EXEC_DOMAIN_handler, exec_domain, handler);
-	OFFSET(RT_SIGFRAME_sigcontext, rt_sigframe, uc.uc_mcontext);
+	OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe, uc.uc_mcontext);
 	BLANK();
 
 	OFFSET(pbe_address, pbe, address);
diff --git a/arch/x86/kernel/vsyscall-sigreturn_32.S b/arch/x86/kernel/vsyscall-sigreturn_32.S
index a92262f41659..e939253ad654 100644
--- a/arch/x86/kernel/vsyscall-sigreturn_32.S
+++ b/arch/x86/kernel/vsyscall-sigreturn_32.S
@@ -91,27 +91,27 @@ __kernel_rt_sigreturn:
 	.sleb128 offset;		/*       offset */		\
 1:
 
-	do_cfa_expr(SIGCONTEXT_esp+4)
-	do_expr(0, SIGCONTEXT_eax+4)
-	do_expr(1, SIGCONTEXT_ecx+4)
-	do_expr(2, SIGCONTEXT_edx+4)
-	do_expr(3, SIGCONTEXT_ebx+4)
-	do_expr(5, SIGCONTEXT_ebp+4)
-	do_expr(6, SIGCONTEXT_esi+4)
-	do_expr(7, SIGCONTEXT_edi+4)
-	do_expr(8, SIGCONTEXT_eip+4)
+	do_cfa_expr(IA32_SIGCONTEXT_esp+4)
+	do_expr(0, IA32_SIGCONTEXT_eax+4)
+	do_expr(1, IA32_SIGCONTEXT_ecx+4)
+	do_expr(2, IA32_SIGCONTEXT_edx+4)
+	do_expr(3, IA32_SIGCONTEXT_ebx+4)
+	do_expr(5, IA32_SIGCONTEXT_ebp+4)
+	do_expr(6, IA32_SIGCONTEXT_esi+4)
+	do_expr(7, IA32_SIGCONTEXT_edi+4)
+	do_expr(8, IA32_SIGCONTEXT_eip+4)
 
 	.byte 0x42	/* DW_CFA_advance_loc 2 -- nop; popl eax. */
 
-	do_cfa_expr(SIGCONTEXT_esp)
-	do_expr(0, SIGCONTEXT_eax)
-	do_expr(1, SIGCONTEXT_ecx)
-	do_expr(2, SIGCONTEXT_edx)
-	do_expr(3, SIGCONTEXT_ebx)
-	do_expr(5, SIGCONTEXT_ebp)
-	do_expr(6, SIGCONTEXT_esi)
-	do_expr(7, SIGCONTEXT_edi)
-	do_expr(8, SIGCONTEXT_eip)
+	do_cfa_expr(IA32_SIGCONTEXT_esp)
+	do_expr(0, IA32_SIGCONTEXT_eax)
+	do_expr(1, IA32_SIGCONTEXT_ecx)
+	do_expr(2, IA32_SIGCONTEXT_edx)
+	do_expr(3, IA32_SIGCONTEXT_ebx)
+	do_expr(5, IA32_SIGCONTEXT_ebp)
+	do_expr(6, IA32_SIGCONTEXT_esi)
+	do_expr(7, IA32_SIGCONTEXT_edi)
+	do_expr(8, IA32_SIGCONTEXT_eip)
 
 	.align 4
 .LENDFDEDLSI1:
@@ -128,15 +128,15 @@ __kernel_rt_sigreturn:
 	   slightly less complicated than the above, since we don't
 	   modify the stack pointer in the process.  */
 
-	do_cfa_expr(RT_SIGFRAME_sigcontext-4 + SIGCONTEXT_esp)
-	do_expr(0, RT_SIGFRAME_sigcontext-4 + SIGCONTEXT_eax)
-	do_expr(1, RT_SIGFRAME_sigcontext-4 + SIGCONTEXT_ecx)
-	do_expr(2, RT_SIGFRAME_sigcontext-4 + SIGCONTEXT_edx)
-	do_expr(3, RT_SIGFRAME_sigcontext-4 + SIGCONTEXT_ebx)
-	do_expr(5, RT_SIGFRAME_sigcontext-4 + SIGCONTEXT_ebp)
-	do_expr(6, RT_SIGFRAME_sigcontext-4 + SIGCONTEXT_esi)
-	do_expr(7, RT_SIGFRAME_sigcontext-4 + SIGCONTEXT_edi)
-	do_expr(8, RT_SIGFRAME_sigcontext-4 + SIGCONTEXT_eip)
+	do_cfa_expr(IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_esp)
+	do_expr(0, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_eax)
+	do_expr(1, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ecx)
+	do_expr(2, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_edx)
+	do_expr(3, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ebx)
+	do_expr(5, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ebp)
+	do_expr(6, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_esi)
+	do_expr(7, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_edi)
+	do_expr(8, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_eip)
 
 	.align 4
 .LENDFDEDLSI2:
-- 
cgit v1.2.3-59-g8ed1b


From 0c2f51a7d2546f65e4198cccd6a56e2a8b857677 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:42 +0100
Subject: x86 vDSO: arch/x86/vdso/vdso32

This moves the i386 vDSO sources into arch/x86/vdso/vdso32/, a
new directory.  This patch is a pure renaming, but paves the way
for consolidating the vDSO build logic.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/vsyscall-sigreturn.S      |   3 +-
 arch/x86/kernel/Makefile_32             |   3 +
 arch/x86/kernel/vsyscall-int80_32.S     |  53 ------------
 arch/x86/kernel/vsyscall-note_32.S      |  45 ----------
 arch/x86/kernel/vsyscall-sigreturn_32.S | 143 --------------------------------
 arch/x86/kernel/vsyscall-sysenter_32.S  | 122 ---------------------------
 arch/x86/vdso/vdso32/int80.S            |  53 ++++++++++++
 arch/x86/vdso/vdso32/note.S             |  45 ++++++++++
 arch/x86/vdso/vdso32/sigreturn.S        | 143 ++++++++++++++++++++++++++++++++
 arch/x86/vdso/vdso32/sysenter.S         | 122 +++++++++++++++++++++++++++
 10 files changed, 367 insertions(+), 365 deletions(-)
 delete mode 100644 arch/x86/kernel/vsyscall-int80_32.S
 delete mode 100644 arch/x86/kernel/vsyscall-note_32.S
 delete mode 100644 arch/x86/kernel/vsyscall-sigreturn_32.S
 delete mode 100644 arch/x86/kernel/vsyscall-sysenter_32.S
 create mode 100644 arch/x86/vdso/vdso32/int80.S
 create mode 100644 arch/x86/vdso/vdso32/note.S
 create mode 100644 arch/x86/vdso/vdso32/sigreturn.S
 create mode 100644 arch/x86/vdso/vdso32/sysenter.S

(limited to 'arch')

diff --git a/arch/x86/ia32/vsyscall-sigreturn.S b/arch/x86/ia32/vsyscall-sigreturn.S
index b383be00baec..295eecf91f17 100644
--- a/arch/x86/ia32/vsyscall-sigreturn.S
+++ b/arch/x86/ia32/vsyscall-sigreturn.S
@@ -139,5 +139,4 @@ __kernel_rt_sigreturn:
 	.align 4
 .LENDFDE3:
 
-#include "../../x86/kernel/vsyscall-note_32.S"
-
+#include "../vdso/vdso32/note.S"
diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index eb2da53578d7..f7c1c1c88dda 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -56,6 +56,9 @@ $(obj)/vsyscall_32.o: $(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter_32.so
 targets += $(foreach F,int80 sysenter,vsyscall-$F_32.o vsyscall-$F_32.so)
 targets += vsyscall-note_32.o vsyscall_32.lds
 
+$(obj)/vsyscall-%_32.o: $(src)/../vdso/vdso32/%.S
+	$(call if_changed_dep,as_o_S)
+
 # The DSO images are built using a special linker script.
 quiet_cmd_syscall = SYSCALL $@
       cmd_syscall = $(CC) -m elf_i386 -nostdlib $(SYSCFLAGS_$(@F)) \
diff --git a/arch/x86/kernel/vsyscall-int80_32.S b/arch/x86/kernel/vsyscall-int80_32.S
deleted file mode 100644
index 103cab6aa7c0..000000000000
--- a/arch/x86/kernel/vsyscall-int80_32.S
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Code for the vsyscall page.  This version uses the old int $0x80 method.
- *
- * NOTE:
- * 1) __kernel_vsyscall _must_ be first in this page.
- * 2) there are alignment constraints on this stub, see vsyscall-sigreturn.S
- *    for details.
- */
-
-	.text
-	.globl __kernel_vsyscall
-	.type __kernel_vsyscall,@function
-__kernel_vsyscall:
-.LSTART_vsyscall:
-	int $0x80
-	ret
-.LEND_vsyscall:
-	.size __kernel_vsyscall,.-.LSTART_vsyscall
-	.previous
-
-	.section .eh_frame,"a",@progbits
-.LSTARTFRAMEDLSI:
-	.long .LENDCIEDLSI-.LSTARTCIEDLSI
-.LSTARTCIEDLSI:
-	.long 0			/* CIE ID */
-	.byte 1			/* Version number */
-	.string "zR"		/* NUL-terminated augmentation string */
-	.uleb128 1		/* Code alignment factor */
-	.sleb128 -4		/* Data alignment factor */
-	.byte 8			/* Return address register column */
-	.uleb128 1		/* Augmentation value length */
-	.byte 0x1b		/* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
-	.byte 0x0c		/* DW_CFA_def_cfa */
-	.uleb128 4
-	.uleb128 4
-	.byte 0x88		/* DW_CFA_offset, column 0x8 */
-	.uleb128 1
-	.align 4
-.LENDCIEDLSI:
-	.long .LENDFDEDLSI-.LSTARTFDEDLSI /* Length FDE */
-.LSTARTFDEDLSI:
-	.long .LSTARTFDEDLSI-.LSTARTFRAMEDLSI /* CIE pointer */
-	.long .LSTART_vsyscall-.	/* PC-relative start address */
-	.long .LEND_vsyscall-.LSTART_vsyscall
-	.uleb128 0
-	.align 4
-.LENDFDEDLSI:
-	.previous
-
-/*
- * Get the common code for the sigreturn entry points.
- */
-#include "vsyscall-sigreturn_32.S"
diff --git a/arch/x86/kernel/vsyscall-note_32.S b/arch/x86/kernel/vsyscall-note_32.S
deleted file mode 100644
index fcf376a37f79..000000000000
--- a/arch/x86/kernel/vsyscall-note_32.S
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text.
- * Here we can supply some information useful to userland.
- */
-
-#include <linux/version.h>
-#include <linux/elfnote.h>
-
-/* Ideally this would use UTS_NAME, but using a quoted string here
-   doesn't work. Remember to change this when changing the
-   kernel's name. */
-ELFNOTE_START(Linux, 0, "a")
-	.long LINUX_VERSION_CODE
-ELFNOTE_END
-
-#ifdef CONFIG_XEN
-/*
- * Add a special note telling glibc's dynamic linker a fake hardware
- * flavor that it will use to choose the search path for libraries in the
- * same way it uses real hardware capabilities like "mmx".
- * We supply "nosegneg" as the fake capability, to indicate that we
- * do not like negative offsets in instructions using segment overrides,
- * since we implement those inefficiently.  This makes it possible to
- * install libraries optimized to avoid those access patterns in someplace
- * like /lib/i686/tls/nosegneg.  Note that an /etc/ld.so.conf.d/file
- * corresponding to the bits here is needed to make ldconfig work right.
- * It should contain:
- *	hwcap 1 nosegneg
- * to match the mapping of bit to name that we give here.
- *
- * At runtime, the fake hardware feature will be considered to be present
- * if its bit is set in the mask word.  So, we start with the mask 0, and
- * at boot time we set VDSO_NOTE_NONEGSEG_BIT if running under Xen.
- */
-
-#include "../../x86/xen/vdso.h"	/* Defines VDSO_NOTE_NONEGSEG_BIT.  */
-
-	.globl VDSO_NOTE_MASK
-ELFNOTE_START(GNU, 2, "a")
-	.long 1			/* ncaps */
-VDSO_NOTE_MASK:
-	.long 0			/* mask */
-	.byte VDSO_NOTE_NONEGSEG_BIT; .asciz "nosegneg"	/* bit, name */
-ELFNOTE_END
-#endif
diff --git a/arch/x86/kernel/vsyscall-sigreturn_32.S b/arch/x86/kernel/vsyscall-sigreturn_32.S
deleted file mode 100644
index e939253ad654..000000000000
--- a/arch/x86/kernel/vsyscall-sigreturn_32.S
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Common code for the sigreturn entry points on the vsyscall page.
- * So far this code is the same for both int80 and sysenter versions.
- * This file is #include'd by vsyscall-*.S to define them after the
- * vsyscall entry point.  The kernel assumes that the addresses of these
- * routines are constant for all vsyscall implementations.
- */
-
-#include <asm/unistd.h>
-#include <asm/asm-offsets.h>
-
-
-/* XXX
-   Should these be named "_sigtramp" or something?
-*/
-
-	.text
-	.org __kernel_vsyscall+32,0x90
-	.globl __kernel_sigreturn
-	.type __kernel_sigreturn,@function
-__kernel_sigreturn:
-.LSTART_sigreturn:
-	popl %eax		/* XXX does this mean it needs unwind info? */
-	movl $__NR_sigreturn, %eax
-	int $0x80
-.LEND_sigreturn:
-	.size __kernel_sigreturn,.-.LSTART_sigreturn
-
-	.balign 32
-	.globl __kernel_rt_sigreturn
-	.type __kernel_rt_sigreturn,@function
-__kernel_rt_sigreturn:
-.LSTART_rt_sigreturn:
-	movl $__NR_rt_sigreturn, %eax
-	int $0x80
-.LEND_rt_sigreturn:
-	.size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn
-	.balign 32
-	.previous
-
-	.section .eh_frame,"a",@progbits
-.LSTARTFRAMEDLSI1:
-	.long .LENDCIEDLSI1-.LSTARTCIEDLSI1
-.LSTARTCIEDLSI1:
-	.long 0			/* CIE ID */
-	.byte 1			/* Version number */
-	.string "zRS"		/* NUL-terminated augmentation string */
-	.uleb128 1		/* Code alignment factor */
-	.sleb128 -4		/* Data alignment factor */
-	.byte 8			/* Return address register column */
-	.uleb128 1		/* Augmentation value length */
-	.byte 0x1b		/* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
-	.byte 0			/* DW_CFA_nop */
-	.align 4
-.LENDCIEDLSI1:
-	.long .LENDFDEDLSI1-.LSTARTFDEDLSI1 /* Length FDE */
-.LSTARTFDEDLSI1:
-	.long .LSTARTFDEDLSI1-.LSTARTFRAMEDLSI1 /* CIE pointer */
-	/* HACK: The dwarf2 unwind routines will subtract 1 from the
-	   return address to get an address in the middle of the
-	   presumed call instruction.  Since we didn't get here via
-	   a call, we need to include the nop before the real start
-	   to make up for it.  */
-	.long .LSTART_sigreturn-1-.	/* PC-relative start address */
-	.long .LEND_sigreturn-.LSTART_sigreturn+1
-	.uleb128 0			/* Augmentation */
-	/* What follows are the instructions for the table generation.
-	   We record the locations of each register saved.  This is
-	   complicated by the fact that the "CFA" is always assumed to
-	   be the value of the stack pointer in the caller.  This means
-	   that we must define the CFA of this body of code to be the
-	   saved value of the stack pointer in the sigcontext.  Which
-	   also means that there is no fixed relation to the other 
-	   saved registers, which means that we must use DW_CFA_expression
-	   to compute their addresses.  It also means that when we 
-	   adjust the stack with the popl, we have to do it all over again.  */
-
-#define do_cfa_expr(offset)						\
-	.byte 0x0f;			/* DW_CFA_def_cfa_expression */	\
-	.uleb128 1f-0f;			/*   length */			\
-0:	.byte 0x74;			/*     DW_OP_breg4 */		\
-	.sleb128 offset;		/*      offset */		\
-	.byte 0x06;			/*     DW_OP_deref */		\
-1:
-
-#define do_expr(regno, offset)						\
-	.byte 0x10;			/* DW_CFA_expression */		\
-	.uleb128 regno;			/*   regno */			\
-	.uleb128 1f-0f;			/*   length */			\
-0:	.byte 0x74;			/*     DW_OP_breg4 */		\
-	.sleb128 offset;		/*       offset */		\
-1:
-
-	do_cfa_expr(IA32_SIGCONTEXT_esp+4)
-	do_expr(0, IA32_SIGCONTEXT_eax+4)
-	do_expr(1, IA32_SIGCONTEXT_ecx+4)
-	do_expr(2, IA32_SIGCONTEXT_edx+4)
-	do_expr(3, IA32_SIGCONTEXT_ebx+4)
-	do_expr(5, IA32_SIGCONTEXT_ebp+4)
-	do_expr(6, IA32_SIGCONTEXT_esi+4)
-	do_expr(7, IA32_SIGCONTEXT_edi+4)
-	do_expr(8, IA32_SIGCONTEXT_eip+4)
-
-	.byte 0x42	/* DW_CFA_advance_loc 2 -- nop; popl eax. */
-
-	do_cfa_expr(IA32_SIGCONTEXT_esp)
-	do_expr(0, IA32_SIGCONTEXT_eax)
-	do_expr(1, IA32_SIGCONTEXT_ecx)
-	do_expr(2, IA32_SIGCONTEXT_edx)
-	do_expr(3, IA32_SIGCONTEXT_ebx)
-	do_expr(5, IA32_SIGCONTEXT_ebp)
-	do_expr(6, IA32_SIGCONTEXT_esi)
-	do_expr(7, IA32_SIGCONTEXT_edi)
-	do_expr(8, IA32_SIGCONTEXT_eip)
-
-	.align 4
-.LENDFDEDLSI1:
-
-	.long .LENDFDEDLSI2-.LSTARTFDEDLSI2 /* Length FDE */
-.LSTARTFDEDLSI2:
-	.long .LSTARTFDEDLSI2-.LSTARTFRAMEDLSI1 /* CIE pointer */
-	/* HACK: See above wrt unwind library assumptions.  */
-	.long .LSTART_rt_sigreturn-1-.	/* PC-relative start address */
-	.long .LEND_rt_sigreturn-.LSTART_rt_sigreturn+1
-	.uleb128 0			/* Augmentation */
-	/* What follows are the instructions for the table generation.
-	   We record the locations of each register saved.  This is
-	   slightly less complicated than the above, since we don't
-	   modify the stack pointer in the process.  */
-
-	do_cfa_expr(IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_esp)
-	do_expr(0, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_eax)
-	do_expr(1, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ecx)
-	do_expr(2, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_edx)
-	do_expr(3, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ebx)
-	do_expr(5, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ebp)
-	do_expr(6, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_esi)
-	do_expr(7, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_edi)
-	do_expr(8, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_eip)
-
-	.align 4
-.LENDFDEDLSI2:
-	.previous
diff --git a/arch/x86/kernel/vsyscall-sysenter_32.S b/arch/x86/kernel/vsyscall-sysenter_32.S
deleted file mode 100644
index ed879bf42995..000000000000
--- a/arch/x86/kernel/vsyscall-sysenter_32.S
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * Code for the vsyscall page.  This version uses the sysenter instruction.
- *
- * NOTE:
- * 1) __kernel_vsyscall _must_ be first in this page.
- * 2) there are alignment constraints on this stub, see vsyscall-sigreturn.S
- *    for details.
- */
-
-/*
- * The caller puts arg2 in %ecx, which gets pushed. The kernel will use
- * %ecx itself for arg2. The pushing is because the sysexit instruction
- * (found in entry.S) requires that we clobber %ecx with the desired %esp.
- * User code might expect that %ecx is unclobbered though, as it would be
- * for returning via the iret instruction, so we must push and pop.
- *
- * The caller puts arg3 in %edx, which the sysexit instruction requires
- * for %eip. Thus, exactly as for arg2, we must push and pop.
- *
- * Arg6 is different. The caller puts arg6 in %ebp. Since the sysenter
- * instruction clobbers %esp, the user's %esp won't even survive entry
- * into the kernel. We store %esp in %ebp. Code in entry.S must fetch
- * arg6 from the stack.
- *
- * You can not use this vsyscall for the clone() syscall because the
- * three dwords on the parent stack do not get copied to the child.
- */
-	.text
-	.globl __kernel_vsyscall
-	.type __kernel_vsyscall,@function
-__kernel_vsyscall:
-.LSTART_vsyscall:
-	push %ecx
-.Lpush_ecx:
-	push %edx
-.Lpush_edx:
-	push %ebp
-.Lenter_kernel:
-	movl %esp,%ebp
-	sysenter
-
-	/* 7: align return point with nop's to make disassembly easier */
-	.space 7,0x90
-
-	/* 14: System call restart point is here! (SYSENTER_RETURN-2) */
-	jmp .Lenter_kernel
-	/* 16: System call normal return point is here! */
-	.globl SYSENTER_RETURN	/* Symbol used by sysenter.c  */
-SYSENTER_RETURN:
-	pop %ebp
-.Lpop_ebp:
-	pop %edx
-.Lpop_edx:
-	pop %ecx
-.Lpop_ecx:
-	ret
-.LEND_vsyscall:
-	.size __kernel_vsyscall,.-.LSTART_vsyscall
-	.previous
-
-	.section .eh_frame,"a",@progbits
-.LSTARTFRAMEDLSI:
-	.long .LENDCIEDLSI-.LSTARTCIEDLSI
-.LSTARTCIEDLSI:
-	.long 0			/* CIE ID */
-	.byte 1			/* Version number */
-	.string "zR"		/* NUL-terminated augmentation string */
-	.uleb128 1		/* Code alignment factor */
-	.sleb128 -4		/* Data alignment factor */
-	.byte 8			/* Return address register column */
-	.uleb128 1		/* Augmentation value length */
-	.byte 0x1b		/* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
-	.byte 0x0c		/* DW_CFA_def_cfa */
-	.uleb128 4
-	.uleb128 4
-	.byte 0x88		/* DW_CFA_offset, column 0x8 */
-	.uleb128 1
-	.align 4
-.LENDCIEDLSI:
-	.long .LENDFDEDLSI-.LSTARTFDEDLSI /* Length FDE */
-.LSTARTFDEDLSI:
-	.long .LSTARTFDEDLSI-.LSTARTFRAMEDLSI /* CIE pointer */
-	.long .LSTART_vsyscall-.	/* PC-relative start address */
-	.long .LEND_vsyscall-.LSTART_vsyscall
-	.uleb128 0
-	/* What follows are the instructions for the table generation.
-	   We have to record all changes of the stack pointer.  */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpush_ecx-.LSTART_vsyscall
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.byte 0x08		/* RA at offset 8 now */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpush_edx-.Lpush_ecx
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.byte 0x0c		/* RA at offset 12 now */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lenter_kernel-.Lpush_edx
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.byte 0x10		/* RA at offset 16 now */
-	.byte 0x85, 0x04	/* DW_CFA_offset %ebp -16 */
-	/* Finally the epilogue.  */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpop_ebp-.Lenter_kernel
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.byte 0x0c		/* RA at offset 12 now */
-	.byte 0xc5		/* DW_CFA_restore %ebp */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpop_edx-.Lpop_ebp
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.byte 0x08		/* RA at offset 8 now */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpop_ecx-.Lpop_edx
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.byte 0x04		/* RA at offset 4 now */
-	.align 4
-.LENDFDEDLSI:
-	.previous
-
-/*
- * Get the common code for the sigreturn entry points.
- */
-#include "vsyscall-sigreturn_32.S"
diff --git a/arch/x86/vdso/vdso32/int80.S b/arch/x86/vdso/vdso32/int80.S
new file mode 100644
index 000000000000..3c8e4c62ace3
--- /dev/null
+++ b/arch/x86/vdso/vdso32/int80.S
@@ -0,0 +1,53 @@
+/*
+ * Code for the vsyscall page.  This version uses the old int $0x80 method.
+ *
+ * NOTE:
+ * 1) __kernel_vsyscall _must_ be first in this page.
+ * 2) there are alignment constraints on this stub, see vsyscall-sigreturn.S
+ *    for details.
+ */
+
+	.text
+	.globl __kernel_vsyscall
+	.type __kernel_vsyscall,@function
+__kernel_vsyscall:
+.LSTART_vsyscall:
+	int $0x80
+	ret
+.LEND_vsyscall:
+	.size __kernel_vsyscall,.-.LSTART_vsyscall
+	.previous
+
+	.section .eh_frame,"a",@progbits
+.LSTARTFRAMEDLSI:
+	.long .LENDCIEDLSI-.LSTARTCIEDLSI
+.LSTARTCIEDLSI:
+	.long 0			/* CIE ID */
+	.byte 1			/* Version number */
+	.string "zR"		/* NUL-terminated augmentation string */
+	.uleb128 1		/* Code alignment factor */
+	.sleb128 -4		/* Data alignment factor */
+	.byte 8			/* Return address register column */
+	.uleb128 1		/* Augmentation value length */
+	.byte 0x1b		/* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
+	.byte 0x0c		/* DW_CFA_def_cfa */
+	.uleb128 4
+	.uleb128 4
+	.byte 0x88		/* DW_CFA_offset, column 0x8 */
+	.uleb128 1
+	.align 4
+.LENDCIEDLSI:
+	.long .LENDFDEDLSI-.LSTARTFDEDLSI /* Length FDE */
+.LSTARTFDEDLSI:
+	.long .LSTARTFDEDLSI-.LSTARTFRAMEDLSI /* CIE pointer */
+	.long .LSTART_vsyscall-.	/* PC-relative start address */
+	.long .LEND_vsyscall-.LSTART_vsyscall
+	.uleb128 0
+	.align 4
+.LENDFDEDLSI:
+	.previous
+
+/*
+ * Get the common code for the sigreturn entry points.
+ */
+#include "sigreturn.S"
diff --git a/arch/x86/vdso/vdso32/note.S b/arch/x86/vdso/vdso32/note.S
new file mode 100644
index 000000000000..0cf934f2633e
--- /dev/null
+++ b/arch/x86/vdso/vdso32/note.S
@@ -0,0 +1,45 @@
+/*
+ * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text.
+ * Here we can supply some information useful to userland.
+ */
+
+#include <linux/version.h>
+#include <linux/elfnote.h>
+
+/* Ideally this would use UTS_NAME, but using a quoted string here
+   doesn't work. Remember to change this when changing the
+   kernel's name. */
+ELFNOTE_START(Linux, 0, "a")
+	.long LINUX_VERSION_CODE
+ELFNOTE_END
+
+#ifdef CONFIG_XEN
+/*
+ * Add a special note telling glibc's dynamic linker a fake hardware
+ * flavor that it will use to choose the search path for libraries in the
+ * same way it uses real hardware capabilities like "mmx".
+ * We supply "nosegneg" as the fake capability, to indicate that we
+ * do not like negative offsets in instructions using segment overrides,
+ * since we implement those inefficiently.  This makes it possible to
+ * install libraries optimized to avoid those access patterns in someplace
+ * like /lib/i686/tls/nosegneg.  Note that an /etc/ld.so.conf.d/file
+ * corresponding to the bits here is needed to make ldconfig work right.
+ * It should contain:
+ *	hwcap 1 nosegneg
+ * to match the mapping of bit to name that we give here.
+ *
+ * At runtime, the fake hardware feature will be considered to be present
+ * if its bit is set in the mask word.  So, we start with the mask 0, and
+ * at boot time we set VDSO_NOTE_NONEGSEG_BIT if running under Xen.
+ */
+
+#include "../../xen/vdso.h"	/* Defines VDSO_NOTE_NONEGSEG_BIT.  */
+
+	.globl VDSO_NOTE_MASK
+ELFNOTE_START(GNU, 2, "a")
+	.long 1			/* ncaps */
+VDSO_NOTE_MASK:
+	.long 0			/* mask */
+	.byte VDSO_NOTE_NONEGSEG_BIT; .asciz "nosegneg"	/* bit, name */
+ELFNOTE_END
+#endif
diff --git a/arch/x86/vdso/vdso32/sigreturn.S b/arch/x86/vdso/vdso32/sigreturn.S
new file mode 100644
index 000000000000..778f4649e32f
--- /dev/null
+++ b/arch/x86/vdso/vdso32/sigreturn.S
@@ -0,0 +1,143 @@
+/*
+ * Common code for the sigreturn entry points on the vsyscall page.
+ * So far this code is the same for both int80 and sysenter versions.
+ * This file is #include'd by vsyscall-*.S to define them after the
+ * vsyscall entry point.  The kernel assumes that the addresses of these
+ * routines are constant for all vsyscall implementations.
+ */
+
+#include <asm/unistd.h>
+#include <asm/asm-offsets.h>
+
+
+/* XXX
+   Should these be named "_sigtramp" or something?
+*/
+
+	.text
+	.org __kernel_vsyscall+32,0x90
+	.globl __kernel_sigreturn
+	.type __kernel_sigreturn,@function
+__kernel_sigreturn:
+.LSTART_sigreturn:
+	popl %eax		/* XXX does this mean it needs unwind info? */
+	movl $__NR_sigreturn, %eax
+	int $0x80
+.LEND_sigreturn:
+	.size __kernel_sigreturn,.-.LSTART_sigreturn
+
+	.balign 32
+	.globl __kernel_rt_sigreturn
+	.type __kernel_rt_sigreturn,@function
+__kernel_rt_sigreturn:
+.LSTART_rt_sigreturn:
+	movl $__NR_rt_sigreturn, %eax
+	int $0x80
+.LEND_rt_sigreturn:
+	.size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn
+	.balign 32
+	.previous
+
+	.section .eh_frame,"a",@progbits
+.LSTARTFRAMEDLSI1:
+	.long .LENDCIEDLSI1-.LSTARTCIEDLSI1
+.LSTARTCIEDLSI1:
+	.long 0			/* CIE ID */
+	.byte 1			/* Version number */
+	.string "zRS"		/* NUL-terminated augmentation string */
+	.uleb128 1		/* Code alignment factor */
+	.sleb128 -4		/* Data alignment factor */
+	.byte 8			/* Return address register column */
+	.uleb128 1		/* Augmentation value length */
+	.byte 0x1b		/* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
+	.byte 0			/* DW_CFA_nop */
+	.align 4
+.LENDCIEDLSI1:
+	.long .LENDFDEDLSI1-.LSTARTFDEDLSI1 /* Length FDE */
+.LSTARTFDEDLSI1:
+	.long .LSTARTFDEDLSI1-.LSTARTFRAMEDLSI1 /* CIE pointer */
+	/* HACK: The dwarf2 unwind routines will subtract 1 from the
+	   return address to get an address in the middle of the
+	   presumed call instruction.  Since we didn't get here via
+	   a call, we need to include the nop before the real start
+	   to make up for it.  */
+	.long .LSTART_sigreturn-1-.	/* PC-relative start address */
+	.long .LEND_sigreturn-.LSTART_sigreturn+1
+	.uleb128 0			/* Augmentation */
+	/* What follows are the instructions for the table generation.
+	   We record the locations of each register saved.  This is
+	   complicated by the fact that the "CFA" is always assumed to
+	   be the value of the stack pointer in the caller.  This means
+	   that we must define the CFA of this body of code to be the
+	   saved value of the stack pointer in the sigcontext.  Which
+	   also means that there is no fixed relation to the other
+	   saved registers, which means that we must use DW_CFA_expression
+	   to compute their addresses.  It also means that when we
+	   adjust the stack with the popl, we have to do it all over again.  */
+
+#define do_cfa_expr(offset)						\
+	.byte 0x0f;			/* DW_CFA_def_cfa_expression */	\
+	.uleb128 1f-0f;			/*   length */			\
+0:	.byte 0x74;			/*     DW_OP_breg4 */		\
+	.sleb128 offset;		/*      offset */		\
+	.byte 0x06;			/*     DW_OP_deref */		\
+1:
+
+#define do_expr(regno, offset)						\
+	.byte 0x10;			/* DW_CFA_expression */		\
+	.uleb128 regno;			/*   regno */			\
+	.uleb128 1f-0f;			/*   length */			\
+0:	.byte 0x74;			/*     DW_OP_breg4 */		\
+	.sleb128 offset;		/*       offset */		\
+1:
+
+	do_cfa_expr(IA32_SIGCONTEXT_esp+4)
+	do_expr(0, IA32_SIGCONTEXT_eax+4)
+	do_expr(1, IA32_SIGCONTEXT_ecx+4)
+	do_expr(2, IA32_SIGCONTEXT_edx+4)
+	do_expr(3, IA32_SIGCONTEXT_ebx+4)
+	do_expr(5, IA32_SIGCONTEXT_ebp+4)
+	do_expr(6, IA32_SIGCONTEXT_esi+4)
+	do_expr(7, IA32_SIGCONTEXT_edi+4)
+	do_expr(8, IA32_SIGCONTEXT_eip+4)
+
+	.byte 0x42	/* DW_CFA_advance_loc 2 -- nop; popl eax. */
+
+	do_cfa_expr(IA32_SIGCONTEXT_esp)
+	do_expr(0, IA32_SIGCONTEXT_eax)
+	do_expr(1, IA32_SIGCONTEXT_ecx)
+	do_expr(2, IA32_SIGCONTEXT_edx)
+	do_expr(3, IA32_SIGCONTEXT_ebx)
+	do_expr(5, IA32_SIGCONTEXT_ebp)
+	do_expr(6, IA32_SIGCONTEXT_esi)
+	do_expr(7, IA32_SIGCONTEXT_edi)
+	do_expr(8, IA32_SIGCONTEXT_eip)
+
+	.align 4
+.LENDFDEDLSI1:
+
+	.long .LENDFDEDLSI2-.LSTARTFDEDLSI2 /* Length FDE */
+.LSTARTFDEDLSI2:
+	.long .LSTARTFDEDLSI2-.LSTARTFRAMEDLSI1 /* CIE pointer */
+	/* HACK: See above wrt unwind library assumptions.  */
+	.long .LSTART_rt_sigreturn-1-.	/* PC-relative start address */
+	.long .LEND_rt_sigreturn-.LSTART_rt_sigreturn+1
+	.uleb128 0			/* Augmentation */
+	/* What follows are the instructions for the table generation.
+	   We record the locations of each register saved.  This is
+	   slightly less complicated than the above, since we don't
+	   modify the stack pointer in the process.  */
+
+	do_cfa_expr(IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_esp)
+	do_expr(0, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_eax)
+	do_expr(1, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ecx)
+	do_expr(2, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_edx)
+	do_expr(3, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ebx)
+	do_expr(5, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ebp)
+	do_expr(6, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_esi)
+	do_expr(7, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_edi)
+	do_expr(8, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_eip)
+
+	.align 4
+.LENDFDEDLSI2:
+	.previous
diff --git a/arch/x86/vdso/vdso32/sysenter.S b/arch/x86/vdso/vdso32/sysenter.S
new file mode 100644
index 000000000000..4b98fc41d3e0
--- /dev/null
+++ b/arch/x86/vdso/vdso32/sysenter.S
@@ -0,0 +1,122 @@
+/*
+ * Code for the vsyscall page.  This version uses the sysenter instruction.
+ *
+ * NOTE:
+ * 1) __kernel_vsyscall _must_ be first in this page.
+ * 2) there are alignment constraints on this stub, see vsyscall-sigreturn.S
+ *    for details.
+ */
+
+/*
+ * The caller puts arg2 in %ecx, which gets pushed. The kernel will use
+ * %ecx itself for arg2. The pushing is because the sysexit instruction
+ * (found in entry.S) requires that we clobber %ecx with the desired %esp.
+ * User code might expect that %ecx is unclobbered though, as it would be
+ * for returning via the iret instruction, so we must push and pop.
+ *
+ * The caller puts arg3 in %edx, which the sysexit instruction requires
+ * for %eip. Thus, exactly as for arg2, we must push and pop.
+ *
+ * Arg6 is different. The caller puts arg6 in %ebp. Since the sysenter
+ * instruction clobbers %esp, the user's %esp won't even survive entry
+ * into the kernel. We store %esp in %ebp. Code in entry.S must fetch
+ * arg6 from the stack.
+ *
+ * You can not use this vsyscall for the clone() syscall because the
+ * three dwords on the parent stack do not get copied to the child.
+ */
+	.text
+	.globl __kernel_vsyscall
+	.type __kernel_vsyscall,@function
+__kernel_vsyscall:
+.LSTART_vsyscall:
+	push %ecx
+.Lpush_ecx:
+	push %edx
+.Lpush_edx:
+	push %ebp
+.Lenter_kernel:
+	movl %esp,%ebp
+	sysenter
+
+	/* 7: align return point with nop's to make disassembly easier */
+	.space 7,0x90
+
+	/* 14: System call restart point is here! (SYSENTER_RETURN-2) */
+	jmp .Lenter_kernel
+	/* 16: System call normal return point is here! */
+	.globl SYSENTER_RETURN	/* Symbol used by sysenter.c  */
+SYSENTER_RETURN:
+	pop %ebp
+.Lpop_ebp:
+	pop %edx
+.Lpop_edx:
+	pop %ecx
+.Lpop_ecx:
+	ret
+.LEND_vsyscall:
+	.size __kernel_vsyscall,.-.LSTART_vsyscall
+	.previous
+
+	.section .eh_frame,"a",@progbits
+.LSTARTFRAMEDLSI:
+	.long .LENDCIEDLSI-.LSTARTCIEDLSI
+.LSTARTCIEDLSI:
+	.long 0			/* CIE ID */
+	.byte 1			/* Version number */
+	.string "zR"		/* NUL-terminated augmentation string */
+	.uleb128 1		/* Code alignment factor */
+	.sleb128 -4		/* Data alignment factor */
+	.byte 8			/* Return address register column */
+	.uleb128 1		/* Augmentation value length */
+	.byte 0x1b		/* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
+	.byte 0x0c		/* DW_CFA_def_cfa */
+	.uleb128 4
+	.uleb128 4
+	.byte 0x88		/* DW_CFA_offset, column 0x8 */
+	.uleb128 1
+	.align 4
+.LENDCIEDLSI:
+	.long .LENDFDEDLSI-.LSTARTFDEDLSI /* Length FDE */
+.LSTARTFDEDLSI:
+	.long .LSTARTFDEDLSI-.LSTARTFRAMEDLSI /* CIE pointer */
+	.long .LSTART_vsyscall-.	/* PC-relative start address */
+	.long .LEND_vsyscall-.LSTART_vsyscall
+	.uleb128 0
+	/* What follows are the instructions for the table generation.
+	   We have to record all changes of the stack pointer.  */
+	.byte 0x04		/* DW_CFA_advance_loc4 */
+	.long .Lpush_ecx-.LSTART_vsyscall
+	.byte 0x0e		/* DW_CFA_def_cfa_offset */
+	.byte 0x08		/* RA at offset 8 now */
+	.byte 0x04		/* DW_CFA_advance_loc4 */
+	.long .Lpush_edx-.Lpush_ecx
+	.byte 0x0e		/* DW_CFA_def_cfa_offset */
+	.byte 0x0c		/* RA at offset 12 now */
+	.byte 0x04		/* DW_CFA_advance_loc4 */
+	.long .Lenter_kernel-.Lpush_edx
+	.byte 0x0e		/* DW_CFA_def_cfa_offset */
+	.byte 0x10		/* RA at offset 16 now */
+	.byte 0x85, 0x04	/* DW_CFA_offset %ebp -16 */
+	/* Finally the epilogue.  */
+	.byte 0x04		/* DW_CFA_advance_loc4 */
+	.long .Lpop_ebp-.Lenter_kernel
+	.byte 0x0e		/* DW_CFA_def_cfa_offset */
+	.byte 0x0c		/* RA at offset 12 now */
+	.byte 0xc5		/* DW_CFA_restore %ebp */
+	.byte 0x04		/* DW_CFA_advance_loc4 */
+	.long .Lpop_edx-.Lpop_ebp
+	.byte 0x0e		/* DW_CFA_def_cfa_offset */
+	.byte 0x08		/* RA at offset 8 now */
+	.byte 0x04		/* DW_CFA_advance_loc4 */
+	.long .Lpop_ecx-.Lpop_edx
+	.byte 0x0e		/* DW_CFA_def_cfa_offset */
+	.byte 0x04		/* RA at offset 4 now */
+	.align 4
+.LENDFDEDLSI:
+	.previous
+
+/*
+ * Get the common code for the sigreturn entry points.
+ */
+#include "sigreturn.S"
-- 
cgit v1.2.3-59-g8ed1b


From 0249c9c1e7505c2b020bcc6deaf1e0415de9943e Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:42 +0100
Subject: x86 vDSO: vdso32 build

This builds the 32-bit vDSO images in the arch/x86/vdso subdirectory.
Nothing uses the images yet, but this paves the way for consolidating
the vDSO build logic all in one place.  The new images use a linker
script sharing the layout parts from vdso-layout.lds.S with the 64-bit
vDSO.  A new vdso32-syms.lds is generated in the style of vdso-syms.lds.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/vdso/Makefile            | 78 +++++++++++++++++++++++++++++++++++++--
 arch/x86/vdso/vdso32/vdso32.lds.S | 37 +++++++++++++++++++
 2 files changed, 112 insertions(+), 3 deletions(-)
 create mode 100644 arch/x86/vdso/vdso32/vdso32.lds.S

(limited to 'arch')

diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index 6a665dd09848..a02e1ca2a1bc 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -1,7 +1,15 @@
 #
-# x86-64 vDSO.
+# Building vDSO images for x86.
 #
 
+VDSO64-$(CONFIG_X86_64)		:= y
+VDSO32-$(CONFIG_X86_32)		:= y
+VDSO32-$(CONFIG_COMPAT)		:= y
+
+vdso-install-$(VDSO64-y)	+= vdso.so
+vdso-install-$(VDSO32-y)	+= $(vdso32-y:=.so)
+
+
 # files to link into the vdso
 vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o vvar.o
 
@@ -57,10 +65,74 @@ quiet_cmd_vdsosym = VDSOSYM $@
 $(obj)/%-syms.lds: $(obj)/%.so.dbg FORCE
 	$(call if_changed,vdsosym)
 
+#
+# Build multiple 32-bit vDSO images to choose from at boot time.
+#
+vdso32.so-$(CONFIG_X86_32)	+= int80
+vdso32.so-$(VDSO32-y)		+= sysenter
+
+CPPFLAGS_vdso32.lds = $(CPPFLAGS_vdso.lds)
+VDSO_LDFLAGS_vdso32.lds = -m elf_i386 -Wl,-soname=linux-gate.so.1
+
+# This makes sure the $(obj) subdirectory exists even though vdso32/
+# is not a kbuild sub-make subdirectory.
+override obj-dirs = $(dir $(obj)) $(obj)/vdso32/
+
+targets += vdso32/vdso32.lds
+targets += $(vdso32.so-y:%=vdso32-%.so.dbg) $(vdso32.so-y:%=vdso32-%.so)
+targets += vdso32/note.o $(vdso32.so-y:%=vdso32/%.o)
+
+extra-y	+= $(vdso32.so-y:%=vdso32-%.so)
+
+KBUILD_AFLAGS_32 := $(filter-out -m64,$(KBUILD_AFLAGS))
+$(vdso32.so-y:%=$(obj)/vdso32-%.so.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_32)
+$(vdso32.so-y:%=$(obj)/vdso32-%.so.dbg): asflags-$(CONFIG_X86_64) += -m32
+
+$(vdso32.so-y:%=$(obj)/vdso32-%.so.dbg): $(obj)/vdso32-%.so.dbg: FORCE \
+					 $(obj)/vdso32/vdso32.lds \
+					 $(obj)/vdso32/note.o \
+					 $(obj)/vdso32/%.o
+	$(call if_changed,vdso)
+
+# Make vdso32-*-syms.lds from each image, and then make sure they match.
+# The only difference should be that some do not define VDSO32_SYSENTER_RETURN.
+
+targets += vdso32-syms.lds $(vdso32.so-y:%=vdso32-%-syms.lds)
+
+quiet_cmd_vdso32sym = VDSOSYM $@
+define cmd_vdso32sym
+	if LC_ALL=C sort -u $(filter-out FORCE,$^) > $(@D)/.tmp_$(@F) && \
+	   $(foreach H,$(filter-out FORCE,$^),\
+		     if grep -q VDSO32_SYSENTER_RETURN $H; \
+		     then diff -u $(@D)/.tmp_$(@F) $H; \
+		     else sed /VDSO32_SYSENTER_RETURN/d $(@D)/.tmp_$(@F) | \
+			  diff -u - $H; fi &&) : ;\
+	then mv -f $(@D)/.tmp_$(@F) $@; \
+	else rm -f $(@D)/.tmp_$(@F); exit 1; \
+	fi
+endef
+
+$(obj)/vdso32-syms.lds: $(vdso32.so-y:%=$(obj)/vdso32-%-syms.lds) FORCE
+	$(call if_changed,vdso32sym)
+
+#
+# The DSO images are built using a special linker script.
+#
+quiet_cmd_vdso = VDSO    $@
+      cmd_vdso = $(CC) -nostdlib -o $@ \
+		       $(VDSO_LDFLAGS) $(VDSO_LDFLAGS_$(filter %.lds,$(^F))) \
+		       -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^)
+
+VDSO_LDFLAGS = -fPIC -shared $(call ld-option, -Wl$(comma)--hash-style=sysv)
+
+#
+# Install the unstripped copy of vdso*.so listed in $(vdso-install-y).
+#
 quiet_cmd_vdso_install = INSTALL $@
       cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@
-vdso.so:
+$(vdso-install-y): %.so: $(obj)/%.so.dbg FORCE
 	@mkdir -p $(MODLIB)/vdso
 	$(call cmd,vdso_install)
 
-vdso_install: vdso.so
+PHONY += vdso_install $(vdso-install-y)
+vdso_install: $(vdso-install-y)
diff --git a/arch/x86/vdso/vdso32/vdso32.lds.S b/arch/x86/vdso/vdso32/vdso32.lds.S
new file mode 100644
index 000000000000..976124bb5f92
--- /dev/null
+++ b/arch/x86/vdso/vdso32/vdso32.lds.S
@@ -0,0 +1,37 @@
+/*
+ * Linker script for 32-bit vDSO.
+ * We #include the file to define the layout details.
+ * Here we only choose the prelinked virtual address.
+ *
+ * This file defines the version script giving the user-exported symbols in
+ * the DSO.  We can define local symbols here called VDSO* to make their
+ * values visible using the asm-x86/vdso.h macros from the kernel proper.
+ */
+
+#define VDSO_PRELINK 0
+#include "../vdso-layout.lds.S"
+
+/* The ELF entry point can be used to set the AT_SYSINFO value.  */
+ENTRY(__kernel_vsyscall);
+
+/*
+ * This controls what userland symbols we export from the vDSO.
+ */
+VERSION
+{
+	LINUX_2.5 {
+	global:
+		__kernel_vsyscall;
+		__kernel_sigreturn;
+		__kernel_rt_sigreturn;
+	local: *;
+	};
+}
+
+/*
+ * Symbols we define here called VDSO* get their values into vdso32-syms.h.
+ */
+VDSO32_PRELINK		= VDSO_PRELINK;
+VDSO32_vsyscall		= __kernel_vsyscall;
+VDSO32_sigreturn	= __kernel_sigreturn;
+VDSO32_rt_sigreturn	= __kernel_rt_sigreturn;
-- 
cgit v1.2.3-59-g8ed1b


From 6c3652efcafa6a6d795093362cb4290c84994b5c Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:42 +0100
Subject: x86 vDSO: i386 vdso32

This makes the i386 kernel use the new vDSO build in arch/x86/vdso/vdso32/
to replace the old one from arch/x86/kernel/.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Makefile_32              |  3 +-
 arch/x86/kernel/Makefile_32       | 43 +------------------------
 arch/x86/kernel/asm-offsets_32.c  |  2 --
 arch/x86/kernel/signal_32.c       |  5 +--
 arch/x86/kernel/sysenter_32.c     |  6 ++--
 arch/x86/kernel/vsyscall_32.S     | 15 ---------
 arch/x86/kernel/vsyscall_32.lds.S | 67 ---------------------------------------
 arch/x86/vdso/Makefile            |  8 +++--
 arch/x86/vdso/vdso32.S            | 15 +++++++++
 arch/x86/vdso/vdso32/note.S       |  3 +-
 arch/x86/vdso/vdso32/sysenter.S   |  3 +-
 arch/x86/xen/setup.c              |  5 ++-
 include/asm-x86/elf.h             | 13 ++------
 include/asm-x86/vdso.h            | 14 ++++++++
 14 files changed, 50 insertions(+), 152 deletions(-)
 delete mode 100644 arch/x86/kernel/vsyscall_32.S
 delete mode 100644 arch/x86/kernel/vsyscall_32.lds.S
 create mode 100644 arch/x86/vdso/vdso32.S

(limited to 'arch')

diff --git a/arch/x86/Makefile_32 b/arch/x86/Makefile_32
index b152db71d5b5..9214224773ed 100644
--- a/arch/x86/Makefile_32
+++ b/arch/x86/Makefile_32
@@ -110,7 +110,8 @@ libs-y 					+= arch/x86/lib/
 core-y					+= arch/x86/kernel/ \
 					   arch/x86/mm/ \
 					   $(mcore-y)/ \
-					   arch/x86/crypto/
+					   arch/x86/crypto/ \
+					   arch/x86/vdso/
 drivers-$(CONFIG_MATH_EMULATION)	+= arch/x86/math-emu/
 drivers-$(CONFIG_PCI)			+= arch/x86/pci/
 # must be linked after kernel/
diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index f7c1c1c88dda..0eef8226753b 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -33,7 +33,7 @@ obj-$(CONFIG_X86_NUMAQ)		+= numaq_32.o
 obj-$(CONFIG_X86_SUMMIT_NUMA)	+= summit_32.o
 obj-$(CONFIG_KPROBES)		+= kprobes_32.o
 obj-$(CONFIG_MODULES)		+= module_32.o
-obj-y				+= sysenter_32.o vsyscall_32.o
+obj-y				+= sysenter_32.o
 obj-$(CONFIG_ACPI_SRAT) 	+= srat_32.o
 obj-$(CONFIG_EFI) 		+= efi_32.o efi_stub_32.o
 obj-$(CONFIG_DOUBLEFAULT) 	+= doublefault_32.o
@@ -48,44 +48,3 @@ obj-$(CONFIG_PARAVIRT)		+= paravirt_32.o
 obj-y				+= pcspeaker.o
 
 obj-$(CONFIG_SCx200)		+= scx200_32.o
-
-# vsyscall_32.o contains the vsyscall DSO images as __initdata.
-# We must build both images before we can assemble it.
-# Note: kbuild does not track this dependency due to usage of .incbin
-$(obj)/vsyscall_32.o: $(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter_32.so
-targets += $(foreach F,int80 sysenter,vsyscall-$F_32.o vsyscall-$F_32.so)
-targets += vsyscall-note_32.o vsyscall_32.lds
-
-$(obj)/vsyscall-%_32.o: $(src)/../vdso/vdso32/%.S
-	$(call if_changed_dep,as_o_S)
-
-# The DSO images are built using a special linker script.
-quiet_cmd_syscall = SYSCALL $@
-      cmd_syscall = $(CC) -m elf_i386 -nostdlib $(SYSCFLAGS_$(@F)) \
-		          -Wl,-T,$(filter-out FORCE,$^) -o $@
-
-export CPPFLAGS_vsyscall_32.lds += -P -C -Ui386
-
-vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \
-		 $(call ld-option, -Wl$(comma)--hash-style=sysv)
-SYSCFLAGS_vsyscall-sysenter_32.so	= $(vsyscall-flags)
-SYSCFLAGS_vsyscall-int80_32.so	= $(vsyscall-flags)
-
-$(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter_32.so: \
-$(obj)/vsyscall-%.so: $(src)/vsyscall_32.lds \
-		      $(obj)/vsyscall-%.o $(obj)/vsyscall-note_32.o FORCE
-	$(call if_changed,syscall)
-
-# We also create a special relocatable object that should mirror the symbol
-# table and layout of the linked DSO.  With ld -R we can then refer to
-# these symbols in the kernel code rather than hand-coded addresses.
-extra-y += vsyscall-syms.o
-$(obj)/built-in.o: $(obj)/vsyscall-syms.o
-$(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o
-
-SYSCFLAGS_vsyscall-syms.o = -r
-$(obj)/vsyscall-syms.o: $(src)/vsyscall_32.lds \
-			$(obj)/vsyscall-sysenter_32.o $(obj)/vsyscall-note_32.o FORCE
-	$(call if_changed,syscall)
-
-
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index 4f750ec810f6..fd7464d23339 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -111,8 +111,6 @@ void foo(void)
 	DEFINE(PTRS_PER_PMD, PTRS_PER_PMD);
 	DEFINE(PTRS_PER_PGD, PTRS_PER_PGD);
 
-	DEFINE(VDSO_PRELINK_asm, VDSO_PRELINK);
-
 	OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
 
 #ifdef CONFIG_PARAVIRT
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 5c6170c44b00..1ac53e9a0859 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -23,6 +23,7 @@
 #include <asm/ucontext.h>
 #include <asm/uaccess.h>
 #include <asm/i387.h>
+#include <asm/vdso.h>
 #include "sigframe_32.h"
 
 #define DEBUG_SIG 0
@@ -362,7 +363,7 @@ static int setup_frame(int sig, struct k_sigaction *ka,
 	}
 
 	if (current->binfmt->hasvdso)
-		restorer = (void *)VDSO_SYM(&__kernel_sigreturn);
+		restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
 	else
 		restorer = (void *)&frame->retcode;
 	if (ka->sa.sa_flags & SA_RESTORER)
@@ -459,7 +460,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 		goto give_sigsegv;
 
 	/* Set up to return from userspace.  */
-	restorer = (void *)VDSO_SYM(&__kernel_rt_sigreturn);
+	restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
 	if (ka->sa.sa_flags & SA_RESTORER)
 		restorer = ka->sa.sa_restorer;
 	err |= __put_user(restorer, &frame->pretcode);
diff --git a/arch/x86/kernel/sysenter_32.c b/arch/x86/kernel/sysenter_32.c
index 5a2d951e2608..85c52d23ee40 100644
--- a/arch/x86/kernel/sysenter_32.c
+++ b/arch/x86/kernel/sysenter_32.c
@@ -23,6 +23,7 @@
 #include <asm/unistd.h>
 #include <asm/elf.h>
 #include <asm/tlbflush.h>
+#include <asm/vdso.h>
 
 enum {
 	VDSO_DISABLED = 0,
@@ -259,9 +260,6 @@ int __init sysenter_setup(void)
 	return 0;
 }
 
-/* Defined in vsyscall-sysenter.S */
-extern void SYSENTER_RETURN;
-
 /* Setup a VMA at program startup for the vsyscall page */
 int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack)
 {
@@ -308,7 +306,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack)
 
 	current->mm->context.vdso = (void *)addr;
 	current_thread_info()->sysenter_return =
-		(void *)VDSO_SYM(&SYSENTER_RETURN);
+		VDSO32_SYMBOL(addr, SYSENTER_RETURN);
 
   up_fail:
 	up_write(&mm->mmap_sem);
diff --git a/arch/x86/kernel/vsyscall_32.S b/arch/x86/kernel/vsyscall_32.S
deleted file mode 100644
index a5ab3dc4fd25..000000000000
--- a/arch/x86/kernel/vsyscall_32.S
+++ /dev/null
@@ -1,15 +0,0 @@
-#include <linux/init.h>
-
-__INITDATA
-
-	.globl vsyscall_int80_start, vsyscall_int80_end
-vsyscall_int80_start:
-	.incbin "arch/x86/kernel/vsyscall-int80_32.so"
-vsyscall_int80_end:
-
-	.globl vsyscall_sysenter_start, vsyscall_sysenter_end
-vsyscall_sysenter_start:
-	.incbin "arch/x86/kernel/vsyscall-sysenter_32.so"
-vsyscall_sysenter_end:
-
-__FINIT
diff --git a/arch/x86/kernel/vsyscall_32.lds.S b/arch/x86/kernel/vsyscall_32.lds.S
deleted file mode 100644
index 4a8b0ed9b8fb..000000000000
--- a/arch/x86/kernel/vsyscall_32.lds.S
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Linker script for vsyscall DSO.  The vsyscall page is an ELF shared
- * object prelinked to its virtual address, and with only one read-only
- * segment (that fits in one page).  This script controls its layout.
- */
-#include <asm/asm-offsets.h>
-
-SECTIONS
-{
-  . = VDSO_PRELINK_asm + SIZEOF_HEADERS;
-
-  .hash           : { *(.hash) }		:text
-  .gnu.hash       : { *(.gnu.hash) }
-  .dynsym         : { *(.dynsym) }
-  .dynstr         : { *(.dynstr) }
-  .gnu.version    : { *(.gnu.version) }
-  .gnu.version_d  : { *(.gnu.version_d) }
-  .gnu.version_r  : { *(.gnu.version_r) }
-
-  /* This linker script is used both with -r and with -shared.
-     For the layouts to match, we need to skip more than enough
-     space for the dynamic symbol table et al.  If this amount
-     is insufficient, ld -shared will barf.  Just increase it here.  */
-  . = VDSO_PRELINK_asm + 0x400;
-
-  .text           : { *(.text) }		:text =0x90909090
-  .note		  : { *(.note.*) }		:text :note
-  .eh_frame_hdr   : { *(.eh_frame_hdr) }	:text :eh_frame_hdr
-  .eh_frame       : { KEEP (*(.eh_frame)) }	:text
-  .dynamic        : { *(.dynamic) }		:text :dynamic
-  .useless        : {
-  	*(.got.plt) *(.got)
-	*(.data .data.* .gnu.linkonce.d.*)
-	*(.dynbss)
-	*(.bss .bss.* .gnu.linkonce.b.*)
-  }						:text
-}
-
-/*
- * We must supply the ELF program headers explicitly to get just one
- * PT_LOAD segment, and set the flags explicitly to make segments read-only.
- */
-PHDRS
-{
-  text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */
-  dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
-  note PT_NOTE FLAGS(4); /* PF_R */
-  eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */
-}
-
-/*
- * This controls what symbols we export from the DSO.
- */
-VERSION
-{
-  LINUX_2.5 {
-    global:
-    	__kernel_vsyscall;
-    	__kernel_sigreturn;
-    	__kernel_rt_sigreturn;
-
-    local: *;
-  };
-}
-
-/* The ELF entry point can be used to set the AT_SYSINFO value.  */
-ENTRY(__kernel_vsyscall);
diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index a02e1ca2a1bc..ca2aabf8ed39 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -14,7 +14,8 @@ vdso-install-$(VDSO32-y)	+= $(vdso32-y:=.so)
 vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o vvar.o
 
 # files to link into kernel
-obj-y := vma.o vdso.o
+obj-$(VDSO64-y)			+= vma.o vdso.o
+obj-$(CONFIG_X86_32)		+= vdso32.o
 
 vobjs := $(foreach F,$(vobjs-y),$(obj)/$F)
 
@@ -52,7 +53,7 @@ $(obj)/vclock_gettime.o: KBUILD_CFLAGS = $(CFL)
 $(obj)/vgetcpu.o: KBUILD_CFLAGS = $(CFL)
 
 targets += vdso-syms.lds
-obj-y += vdso-syms.lds
+obj-$(VDSO64-y)			+= vdso-syms.lds
 
 #
 # Match symbols in the DSO that look like VDSO*; produce a file of constants.
@@ -68,6 +69,7 @@ $(obj)/%-syms.lds: $(obj)/%.so.dbg FORCE
 #
 # Build multiple 32-bit vDSO images to choose from at boot time.
 #
+obj-$(VDSO32-y)			+= vdso32-syms.lds
 vdso32.so-$(CONFIG_X86_32)	+= int80
 vdso32.so-$(VDSO32-y)		+= sysenter
 
@@ -84,6 +86,8 @@ targets += vdso32/note.o $(vdso32.so-y:%=vdso32/%.o)
 
 extra-y	+= $(vdso32.so-y:%=vdso32-%.so)
 
+$(obj)/vdso32.o: $(vdso32.so-y:%=$(obj)/vdso32-%.so)
+
 KBUILD_AFLAGS_32 := $(filter-out -m64,$(KBUILD_AFLAGS))
 $(vdso32.so-y:%=$(obj)/vdso32-%.so.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_32)
 $(vdso32.so-y:%=$(obj)/vdso32-%.so.dbg): asflags-$(CONFIG_X86_64) += -m32
diff --git a/arch/x86/vdso/vdso32.S b/arch/x86/vdso/vdso32.S
new file mode 100644
index 000000000000..cab020c99c3d
--- /dev/null
+++ b/arch/x86/vdso/vdso32.S
@@ -0,0 +1,15 @@
+#include <linux/init.h>
+
+__INITDATA
+
+	.globl vsyscall_int80_start, vsyscall_int80_end
+vsyscall_int80_start:
+	.incbin "arch/x86/vdso/vdso32-int80.so"
+vsyscall_int80_end:
+
+	.globl vsyscall_sysenter_start, vsyscall_sysenter_end
+vsyscall_sysenter_start:
+	.incbin "arch/x86/vdso/vdso32-sysenter.so"
+vsyscall_sysenter_end:
+
+__FINIT
diff --git a/arch/x86/vdso/vdso32/note.S b/arch/x86/vdso/vdso32/note.S
index 0cf934f2633e..c83f25734696 100644
--- a/arch/x86/vdso/vdso32/note.S
+++ b/arch/x86/vdso/vdso32/note.S
@@ -35,10 +35,9 @@ ELFNOTE_END
 
 #include "../../xen/vdso.h"	/* Defines VDSO_NOTE_NONEGSEG_BIT.  */
 
-	.globl VDSO_NOTE_MASK
 ELFNOTE_START(GNU, 2, "a")
 	.long 1			/* ncaps */
-VDSO_NOTE_MASK:
+VDSO32_NOTE_MASK:		/* Symbol used by arch/x86/xen/setup.c */
 	.long 0			/* mask */
 	.byte VDSO_NOTE_NONEGSEG_BIT; .asciz "nosegneg"	/* bit, name */
 ELFNOTE_END
diff --git a/arch/x86/vdso/vdso32/sysenter.S b/arch/x86/vdso/vdso32/sysenter.S
index 4b98fc41d3e0..109bfa394eaa 100644
--- a/arch/x86/vdso/vdso32/sysenter.S
+++ b/arch/x86/vdso/vdso32/sysenter.S
@@ -45,8 +45,7 @@ __kernel_vsyscall:
 	/* 14: System call restart point is here! (SYSENTER_RETURN-2) */
 	jmp .Lenter_kernel
 	/* 16: System call normal return point is here! */
-	.globl SYSENTER_RETURN	/* Symbol used by sysenter.c  */
-SYSENTER_RETURN:
+VDSO32_SYSENTER_RETURN:	/* Symbol used by sysenter.c via vdso32-syms.h */
 	pop %ebp
 .Lpop_ebp:
 	pop %edx
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index f84e77226646..fd91568090f4 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -10,6 +10,7 @@
 #include <linux/pm.h>
 
 #include <asm/elf.h>
+#include <asm/vdso.h>
 #include <asm/e820.h>
 #include <asm/setup.h>
 #include <asm/xen/hypervisor.h>
@@ -61,10 +62,8 @@ static void xen_idle(void)
  */
 static void fiddle_vdso(void)
 {
-	extern u32 VDSO_NOTE_MASK; /* See ../kernel/vsyscall-note.S.  */
 	extern char vsyscall_int80_start;
-	u32 *mask = (u32 *) ((unsigned long) &VDSO_NOTE_MASK - VDSO_PRELINK +
-			     &vsyscall_int80_start);
+	u32 *mask = VDSO32_SYMBOL(&vsyscall_int80_start, NOTE_MASK);
 	*mask |= 1 << VDSO_NOTE_NONEGSEG_BIT;
 }
 
diff --git a/include/asm-x86/elf.h b/include/asm-x86/elf.h
index cd3204ebbbdd..70edff2d5671 100644
--- a/include/asm-x86/elf.h
+++ b/include/asm-x86/elf.h
@@ -78,6 +78,7 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
 #include <asm/processor.h>
 #include <asm/system.h>		/* for savesegment */
 #include <asm/desc.h>
+#include <asm/vdso.h>
 
 /*
  * This is used to ensure we don't load something for the wrong architecture.
@@ -247,17 +248,9 @@ extern int dump_task_extended_fpu (struct task_struct *,
 
 #define VDSO_HIGH_BASE		(__fix_to_virt(FIX_VDSO))
 #define VDSO_CURRENT_BASE	((unsigned long)current->mm->context.vdso)
-#define VDSO_PRELINK		0
 
-#define VDSO_SYM(x) \
-		(VDSO_CURRENT_BASE + (unsigned long)(x) - VDSO_PRELINK)
-
-#define VDSO_HIGH_EHDR		((const struct elfhdr *) VDSO_HIGH_BASE)
-#define VDSO_EHDR		((const struct elfhdr *) VDSO_CURRENT_BASE)
-
-extern void __kernel_vsyscall;
-
-#define VDSO_ENTRY		VDSO_SYM(&__kernel_vsyscall)
+#define VDSO_ENTRY \
+	((unsigned long) VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall))
 
 /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
 
diff --git a/include/asm-x86/vdso.h b/include/asm-x86/vdso.h
index 9379ec06fd1f..629bcb6e8e45 100644
--- a/include/asm-x86/vdso.h
+++ b/include/asm-x86/vdso.h
@@ -1,6 +1,7 @@
 #ifndef _ASM_X86_VDSO_H
 #define _ASM_X86_VDSO_H	1
 
+#ifdef CONFIG_X86_64
 extern const char VDSO64_PRELINK[];
 
 /*
@@ -10,5 +11,18 @@ extern const char VDSO64_PRELINK[];
 #define VDSO64_SYMBOL(base, name) ({		\
 	extern const char VDSO64_##name[];	\
 	(void *) (VDSO64_##name - VDSO64_PRELINK + (unsigned long) (base)); })
+#endif
+
+#if defined CONFIG_X86_32 || defined CONFIG_COMPAT
+extern const char VDSO32_PRELINK[];
+
+/*
+ * Given a pointer to the vDSO image, find the pointer to VDSO32_name
+ * as that symbol is defined in the vDSO sources or linker script.
+ */
+#define VDSO32_SYMBOL(base, name) ({		\
+	extern const char VDSO32_##name[];	\
+	(void *) (VDSO32_##name - VDSO32_PRELINK + (unsigned long) (base)); })
+#endif
 
 #endif	/* asm-x86/vdso.h */
-- 
cgit v1.2.3-59-g8ed1b


From 4707c4717a5a6f375f3300bbccff1d46dcf75b25 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:42 +0100
Subject: x86 vDSO: absolute relocs

This updates the exceptions for absolute relocs for the new symbol name
convention used for symbols extracted from the vDSO images.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/relocs.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/relocs.c b/arch/x86/boot/compressed/relocs.c
index 7a0d00b2cf28..d01ea42187e6 100644
--- a/arch/x86/boot/compressed/relocs.c
+++ b/arch/x86/boot/compressed/relocs.c
@@ -27,11 +27,6 @@ static unsigned long *relocs;
  * absolute relocations present w.r.t these symbols.
  */
 static const char* safe_abs_relocs[] = {
-		"__kernel_vsyscall",
-		"__kernel_rt_sigreturn",
-		"__kernel_sigreturn",
-		"SYSENTER_RETURN",
-		"VDSO_NOTE_MASK",
 		"xen_irq_disable_direct_reloc",
 		"xen_save_fl_direct_reloc",
 };
@@ -45,6 +40,8 @@ static int is_safe_abs_reloc(const char* sym_name)
 			/* Match found */
 			return 1;
 	}
+	if (strncmp(sym_name, "VDSO", 4) == 0)
+		return 1;
 	if (strncmp(sym_name, "__crc_", 6) == 0)
 		return 1;
 	return 0;
-- 
cgit v1.2.3-59-g8ed1b


From 85a93b95dcd24023e0590ba4852ebff29208491a Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:42 +0100
Subject: x86 vDSO: i386 vdso32 install

This enables 'make vdso_install' for i386 as on x86_64 and powerpc.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Makefile_32 | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/Makefile_32 b/arch/x86/Makefile_32
index 9214224773ed..5c6724de904e 100644
--- a/arch/x86/Makefile_32
+++ b/arch/x86/Makefile_32
@@ -149,9 +149,13 @@ zdisk bzdisk: vmlinux
 fdimage fdimage144 fdimage288 isoimage: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
 
-install:
+install: vdso_install
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
 
+PHONY += vdso_install
+vdso_install:
+	$(Q)$(MAKE) $(build)=arch/x86/vdso $@
+
 archclean:
 	$(Q)rm -rf $(objtree)/arch/i386
 	$(Q)rm -rf $(objtree)/arch/x86_64
-- 
cgit v1.2.3-59-g8ed1b


From f288f32dc51042fd3a493b85b226e63f1ad3edcc Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:42 +0100
Subject: x86 vDSO: vdso32 setup

This moves arch/x86/kernel/sysenter_32.c to arch/x86/vdso/vdso32-setup.c,
keeping all the code relating only to vDSO magic in the vdso/ subdirectory.
This is a pure renaming, but it paves the way to consolidating the code for
dealing with 32-bit vDSOs across CONFIG_X86_32 and CONFIG_IA32_EMULATION.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile_32   |   1 -
 arch/x86/kernel/sysenter_32.c | 344 ------------------------------------------
 arch/x86/vdso/Makefile        |   2 +-
 arch/x86/vdso/vdso32-setup.c  | 344 ++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 345 insertions(+), 346 deletions(-)
 delete mode 100644 arch/x86/kernel/sysenter_32.c
 create mode 100644 arch/x86/vdso/vdso32-setup.c

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index 0eef8226753b..2c9596b9349c 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -33,7 +33,6 @@ obj-$(CONFIG_X86_NUMAQ)		+= numaq_32.o
 obj-$(CONFIG_X86_SUMMIT_NUMA)	+= summit_32.o
 obj-$(CONFIG_KPROBES)		+= kprobes_32.o
 obj-$(CONFIG_MODULES)		+= module_32.o
-obj-y				+= sysenter_32.o
 obj-$(CONFIG_ACPI_SRAT) 	+= srat_32.o
 obj-$(CONFIG_EFI) 		+= efi_32.o efi_stub_32.o
 obj-$(CONFIG_DOUBLEFAULT) 	+= doublefault_32.o
diff --git a/arch/x86/kernel/sysenter_32.c b/arch/x86/kernel/sysenter_32.c
deleted file mode 100644
index 85c52d23ee40..000000000000
--- a/arch/x86/kernel/sysenter_32.c
+++ /dev/null
@@ -1,344 +0,0 @@
-/*
- * (C) Copyright 2002 Linus Torvalds
- * Portions based on the vdso-randomization code from exec-shield:
- * Copyright(C) 2005-2006, Red Hat, Inc., Ingo Molnar
- *
- * This file contains the needed initializations to support sysenter.
- */
-
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/thread_info.h>
-#include <linux/sched.h>
-#include <linux/gfp.h>
-#include <linux/string.h>
-#include <linux/elf.h>
-#include <linux/mm.h>
-#include <linux/err.h>
-#include <linux/module.h>
-
-#include <asm/cpufeature.h>
-#include <asm/msr.h>
-#include <asm/pgtable.h>
-#include <asm/unistd.h>
-#include <asm/elf.h>
-#include <asm/tlbflush.h>
-#include <asm/vdso.h>
-
-enum {
-	VDSO_DISABLED = 0,
-	VDSO_ENABLED = 1,
-	VDSO_COMPAT = 2,
-};
-
-#ifdef CONFIG_COMPAT_VDSO
-#define VDSO_DEFAULT	VDSO_COMPAT
-#else
-#define VDSO_DEFAULT	VDSO_ENABLED
-#endif
-
-/*
- * Should the kernel map a VDSO page into processes and pass its
- * address down to glibc upon exec()?
- */
-unsigned int __read_mostly vdso_enabled = VDSO_DEFAULT;
-
-EXPORT_SYMBOL_GPL(vdso_enabled);
-
-static int __init vdso_setup(char *s)
-{
-	vdso_enabled = simple_strtoul(s, NULL, 0);
-
-	return 1;
-}
-
-__setup("vdso=", vdso_setup);
-
-extern asmlinkage void sysenter_entry(void);
-
-static __init void reloc_symtab(Elf32_Ehdr *ehdr,
-				unsigned offset, unsigned size)
-{
-	Elf32_Sym *sym = (void *)ehdr + offset;
-	unsigned nsym = size / sizeof(*sym);
-	unsigned i;
-
-	for(i = 0; i < nsym; i++, sym++) {
-		if (sym->st_shndx == SHN_UNDEF ||
-		    sym->st_shndx == SHN_ABS)
-			continue;  /* skip */
-
-		if (sym->st_shndx > SHN_LORESERVE) {
-			printk(KERN_INFO "VDSO: unexpected st_shndx %x\n",
-			       sym->st_shndx);
-			continue;
-		}
-
-		switch(ELF_ST_TYPE(sym->st_info)) {
-		case STT_OBJECT:
-		case STT_FUNC:
-		case STT_SECTION:
-		case STT_FILE:
-			sym->st_value += VDSO_HIGH_BASE;
-		}
-	}
-}
-
-static __init void reloc_dyn(Elf32_Ehdr *ehdr, unsigned offset)
-{
-	Elf32_Dyn *dyn = (void *)ehdr + offset;
-
-	for(; dyn->d_tag != DT_NULL; dyn++)
-		switch(dyn->d_tag) {
-		case DT_PLTGOT:
-		case DT_HASH:
-		case DT_STRTAB:
-		case DT_SYMTAB:
-		case DT_RELA:
-		case DT_INIT:
-		case DT_FINI:
-		case DT_REL:
-		case DT_DEBUG:
-		case DT_JMPREL:
-		case DT_VERSYM:
-		case DT_VERDEF:
-		case DT_VERNEED:
-		case DT_ADDRRNGLO ... DT_ADDRRNGHI:
-			/* definitely pointers needing relocation */
-			dyn->d_un.d_ptr += VDSO_HIGH_BASE;
-			break;
-
-		case DT_ENCODING ... OLD_DT_LOOS-1:
-		case DT_LOOS ... DT_HIOS-1:
-			/* Tags above DT_ENCODING are pointers if
-			   they're even */
-			if (dyn->d_tag >= DT_ENCODING &&
-			    (dyn->d_tag & 1) == 0)
-				dyn->d_un.d_ptr += VDSO_HIGH_BASE;
-			break;
-
-		case DT_VERDEFNUM:
-		case DT_VERNEEDNUM:
-		case DT_FLAGS_1:
-		case DT_RELACOUNT:
-		case DT_RELCOUNT:
-		case DT_VALRNGLO ... DT_VALRNGHI:
-			/* definitely not pointers */
-			break;
-
-		case OLD_DT_LOOS ... DT_LOOS-1:
-		case DT_HIOS ... DT_VALRNGLO-1:
-		default:
-			if (dyn->d_tag > DT_ENCODING)
-				printk(KERN_INFO "VDSO: unexpected DT_tag %x\n",
-				       dyn->d_tag);
-			break;
-		}
-}
-
-static __init void relocate_vdso(Elf32_Ehdr *ehdr)
-{
-	Elf32_Phdr *phdr;
-	Elf32_Shdr *shdr;
-	int i;
-
-	BUG_ON(memcmp(ehdr->e_ident, ELFMAG, 4) != 0 ||
-	       !elf_check_arch(ehdr) ||
-	       ehdr->e_type != ET_DYN);
-
-	ehdr->e_entry += VDSO_HIGH_BASE;
-
-	/* rebase phdrs */
-	phdr = (void *)ehdr + ehdr->e_phoff;
-	for (i = 0; i < ehdr->e_phnum; i++) {
-		phdr[i].p_vaddr += VDSO_HIGH_BASE;
-
-		/* relocate dynamic stuff */
-		if (phdr[i].p_type == PT_DYNAMIC)
-			reloc_dyn(ehdr, phdr[i].p_offset);
-	}
-
-	/* rebase sections */
-	shdr = (void *)ehdr + ehdr->e_shoff;
-	for(i = 0; i < ehdr->e_shnum; i++) {
-		if (!(shdr[i].sh_flags & SHF_ALLOC))
-			continue;
-
-		shdr[i].sh_addr += VDSO_HIGH_BASE;
-
-		if (shdr[i].sh_type == SHT_SYMTAB ||
-		    shdr[i].sh_type == SHT_DYNSYM)
-			reloc_symtab(ehdr, shdr[i].sh_offset,
-				     shdr[i].sh_size);
-	}
-}
-
-void enable_sep_cpu(void)
-{
-	int cpu = get_cpu();
-	struct tss_struct *tss = &per_cpu(init_tss, cpu);
-
-	if (!boot_cpu_has(X86_FEATURE_SEP)) {
-		put_cpu();
-		return;
-	}
-
-	tss->x86_tss.ss1 = __KERNEL_CS;
-	tss->x86_tss.esp1 = sizeof(struct tss_struct) + (unsigned long) tss;
-	wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0);
-	wrmsr(MSR_IA32_SYSENTER_ESP, tss->x86_tss.esp1, 0);
-	wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) sysenter_entry, 0);
-	put_cpu();	
-}
-
-static struct vm_area_struct gate_vma;
-
-static int __init gate_vma_init(void)
-{
-	gate_vma.vm_mm = NULL;
-	gate_vma.vm_start = FIXADDR_USER_START;
-	gate_vma.vm_end = FIXADDR_USER_END;
-	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
-	gate_vma.vm_page_prot = __P101;
-	/*
-	 * Make sure the vDSO gets into every core dump.
-	 * Dumping its contents makes post-mortem fully interpretable later
-	 * without matching up the same kernel and hardware config to see
-	 * what PC values meant.
-	 */
-	gate_vma.vm_flags |= VM_ALWAYSDUMP;
-	return 0;
-}
-
-/*
- * These symbols are defined by vsyscall.o to mark the bounds
- * of the ELF DSO images included therein.
- */
-extern const char vsyscall_int80_start, vsyscall_int80_end;
-extern const char vsyscall_sysenter_start, vsyscall_sysenter_end;
-static struct page *syscall_pages[1];
-
-static void map_compat_vdso(int map)
-{
-	static int vdso_mapped;
-
-	if (map == vdso_mapped)
-		return;
-
-	vdso_mapped = map;
-
-	__set_fixmap(FIX_VDSO, page_to_pfn(syscall_pages[0]) << PAGE_SHIFT,
-		     map ? PAGE_READONLY_EXEC : PAGE_NONE);
-
-	/* flush stray tlbs */
-	flush_tlb_all();
-}
-
-int __init sysenter_setup(void)
-{
-	void *syscall_page = (void *)get_zeroed_page(GFP_ATOMIC);
-	const void *vsyscall;
-	size_t vsyscall_len;
-
-	syscall_pages[0] = virt_to_page(syscall_page);
-
-	gate_vma_init();
-
-	printk("Compat vDSO mapped to %08lx.\n", __fix_to_virt(FIX_VDSO));
-
-	if (!boot_cpu_has(X86_FEATURE_SEP)) {
-		vsyscall = &vsyscall_int80_start;
-		vsyscall_len = &vsyscall_int80_end - &vsyscall_int80_start;
-	} else {
-		vsyscall = &vsyscall_sysenter_start;
-		vsyscall_len = &vsyscall_sysenter_end - &vsyscall_sysenter_start;
-	}
-
-	memcpy(syscall_page, vsyscall, vsyscall_len);
-	relocate_vdso(syscall_page);
-
-	return 0;
-}
-
-/* Setup a VMA at program startup for the vsyscall page */
-int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack)
-{
-	struct mm_struct *mm = current->mm;
-	unsigned long addr;
-	int ret = 0;
-	bool compat;
-
-	down_write(&mm->mmap_sem);
-
-	/* Test compat mode once here, in case someone
-	   changes it via sysctl */
-	compat = (vdso_enabled == VDSO_COMPAT);
-
-	map_compat_vdso(compat);
-
-	if (compat)
-		addr = VDSO_HIGH_BASE;
-	else {
-		addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
-		if (IS_ERR_VALUE(addr)) {
-			ret = addr;
-			goto up_fail;
-		}
-
-		/*
-		 * MAYWRITE to allow gdb to COW and set breakpoints
-		 *
-		 * Make sure the vDSO gets into every core dump.
-		 * Dumping its contents makes post-mortem fully
-		 * interpretable later without matching up the same
-		 * kernel and hardware config to see what PC values
-		 * meant.
-		 */
-		ret = install_special_mapping(mm, addr, PAGE_SIZE,
-					      VM_READ|VM_EXEC|
-					      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
-					      VM_ALWAYSDUMP,
-					      syscall_pages);
-
-		if (ret)
-			goto up_fail;
-	}
-
-	current->mm->context.vdso = (void *)addr;
-	current_thread_info()->sysenter_return =
-		VDSO32_SYMBOL(addr, SYSENTER_RETURN);
-
-  up_fail:
-	up_write(&mm->mmap_sem);
-
-	return ret;
-}
-
-const char *arch_vma_name(struct vm_area_struct *vma)
-{
-	if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
-		return "[vdso]";
-	return NULL;
-}
-
-struct vm_area_struct *get_gate_vma(struct task_struct *tsk)
-{
-	struct mm_struct *mm = tsk->mm;
-
-	/* Check to see if this task was created in compat vdso mode */
-	if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE)
-		return &gate_vma;
-	return NULL;
-}
-
-int in_gate_area(struct task_struct *task, unsigned long addr)
-{
-	const struct vm_area_struct *vma = get_gate_vma(task);
-
-	return vma && addr >= vma->vm_start && addr < vma->vm_end;
-}
-
-int in_gate_area_no_task(unsigned long addr)
-{
-	return 0;
-}
diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index ca2aabf8ed39..1efe785979a2 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -15,7 +15,7 @@ vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o vvar.o
 
 # files to link into kernel
 obj-$(VDSO64-y)			+= vma.o vdso.o
-obj-$(CONFIG_X86_32)		+= vdso32.o
+obj-$(CONFIG_X86_32)		+= vdso32.o vdso32-setup.o
 
 vobjs := $(foreach F,$(vobjs-y),$(obj)/$F)
 
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
new file mode 100644
index 000000000000..85c52d23ee40
--- /dev/null
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -0,0 +1,344 @@
+/*
+ * (C) Copyright 2002 Linus Torvalds
+ * Portions based on the vdso-randomization code from exec-shield:
+ * Copyright(C) 2005-2006, Red Hat, Inc., Ingo Molnar
+ *
+ * This file contains the needed initializations to support sysenter.
+ */
+
+#include <linux/init.h>
+#include <linux/smp.h>
+#include <linux/thread_info.h>
+#include <linux/sched.h>
+#include <linux/gfp.h>
+#include <linux/string.h>
+#include <linux/elf.h>
+#include <linux/mm.h>
+#include <linux/err.h>
+#include <linux/module.h>
+
+#include <asm/cpufeature.h>
+#include <asm/msr.h>
+#include <asm/pgtable.h>
+#include <asm/unistd.h>
+#include <asm/elf.h>
+#include <asm/tlbflush.h>
+#include <asm/vdso.h>
+
+enum {
+	VDSO_DISABLED = 0,
+	VDSO_ENABLED = 1,
+	VDSO_COMPAT = 2,
+};
+
+#ifdef CONFIG_COMPAT_VDSO
+#define VDSO_DEFAULT	VDSO_COMPAT
+#else
+#define VDSO_DEFAULT	VDSO_ENABLED
+#endif
+
+/*
+ * Should the kernel map a VDSO page into processes and pass its
+ * address down to glibc upon exec()?
+ */
+unsigned int __read_mostly vdso_enabled = VDSO_DEFAULT;
+
+EXPORT_SYMBOL_GPL(vdso_enabled);
+
+static int __init vdso_setup(char *s)
+{
+	vdso_enabled = simple_strtoul(s, NULL, 0);
+
+	return 1;
+}
+
+__setup("vdso=", vdso_setup);
+
+extern asmlinkage void sysenter_entry(void);
+
+static __init void reloc_symtab(Elf32_Ehdr *ehdr,
+				unsigned offset, unsigned size)
+{
+	Elf32_Sym *sym = (void *)ehdr + offset;
+	unsigned nsym = size / sizeof(*sym);
+	unsigned i;
+
+	for(i = 0; i < nsym; i++, sym++) {
+		if (sym->st_shndx == SHN_UNDEF ||
+		    sym->st_shndx == SHN_ABS)
+			continue;  /* skip */
+
+		if (sym->st_shndx > SHN_LORESERVE) {
+			printk(KERN_INFO "VDSO: unexpected st_shndx %x\n",
+			       sym->st_shndx);
+			continue;
+		}
+
+		switch(ELF_ST_TYPE(sym->st_info)) {
+		case STT_OBJECT:
+		case STT_FUNC:
+		case STT_SECTION:
+		case STT_FILE:
+			sym->st_value += VDSO_HIGH_BASE;
+		}
+	}
+}
+
+static __init void reloc_dyn(Elf32_Ehdr *ehdr, unsigned offset)
+{
+	Elf32_Dyn *dyn = (void *)ehdr + offset;
+
+	for(; dyn->d_tag != DT_NULL; dyn++)
+		switch(dyn->d_tag) {
+		case DT_PLTGOT:
+		case DT_HASH:
+		case DT_STRTAB:
+		case DT_SYMTAB:
+		case DT_RELA:
+		case DT_INIT:
+		case DT_FINI:
+		case DT_REL:
+		case DT_DEBUG:
+		case DT_JMPREL:
+		case DT_VERSYM:
+		case DT_VERDEF:
+		case DT_VERNEED:
+		case DT_ADDRRNGLO ... DT_ADDRRNGHI:
+			/* definitely pointers needing relocation */
+			dyn->d_un.d_ptr += VDSO_HIGH_BASE;
+			break;
+
+		case DT_ENCODING ... OLD_DT_LOOS-1:
+		case DT_LOOS ... DT_HIOS-1:
+			/* Tags above DT_ENCODING are pointers if
+			   they're even */
+			if (dyn->d_tag >= DT_ENCODING &&
+			    (dyn->d_tag & 1) == 0)
+				dyn->d_un.d_ptr += VDSO_HIGH_BASE;
+			break;
+
+		case DT_VERDEFNUM:
+		case DT_VERNEEDNUM:
+		case DT_FLAGS_1:
+		case DT_RELACOUNT:
+		case DT_RELCOUNT:
+		case DT_VALRNGLO ... DT_VALRNGHI:
+			/* definitely not pointers */
+			break;
+
+		case OLD_DT_LOOS ... DT_LOOS-1:
+		case DT_HIOS ... DT_VALRNGLO-1:
+		default:
+			if (dyn->d_tag > DT_ENCODING)
+				printk(KERN_INFO "VDSO: unexpected DT_tag %x\n",
+				       dyn->d_tag);
+			break;
+		}
+}
+
+static __init void relocate_vdso(Elf32_Ehdr *ehdr)
+{
+	Elf32_Phdr *phdr;
+	Elf32_Shdr *shdr;
+	int i;
+
+	BUG_ON(memcmp(ehdr->e_ident, ELFMAG, 4) != 0 ||
+	       !elf_check_arch(ehdr) ||
+	       ehdr->e_type != ET_DYN);
+
+	ehdr->e_entry += VDSO_HIGH_BASE;
+
+	/* rebase phdrs */
+	phdr = (void *)ehdr + ehdr->e_phoff;
+	for (i = 0; i < ehdr->e_phnum; i++) {
+		phdr[i].p_vaddr += VDSO_HIGH_BASE;
+
+		/* relocate dynamic stuff */
+		if (phdr[i].p_type == PT_DYNAMIC)
+			reloc_dyn(ehdr, phdr[i].p_offset);
+	}
+
+	/* rebase sections */
+	shdr = (void *)ehdr + ehdr->e_shoff;
+	for(i = 0; i < ehdr->e_shnum; i++) {
+		if (!(shdr[i].sh_flags & SHF_ALLOC))
+			continue;
+
+		shdr[i].sh_addr += VDSO_HIGH_BASE;
+
+		if (shdr[i].sh_type == SHT_SYMTAB ||
+		    shdr[i].sh_type == SHT_DYNSYM)
+			reloc_symtab(ehdr, shdr[i].sh_offset,
+				     shdr[i].sh_size);
+	}
+}
+
+void enable_sep_cpu(void)
+{
+	int cpu = get_cpu();
+	struct tss_struct *tss = &per_cpu(init_tss, cpu);
+
+	if (!boot_cpu_has(X86_FEATURE_SEP)) {
+		put_cpu();
+		return;
+	}
+
+	tss->x86_tss.ss1 = __KERNEL_CS;
+	tss->x86_tss.esp1 = sizeof(struct tss_struct) + (unsigned long) tss;
+	wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0);
+	wrmsr(MSR_IA32_SYSENTER_ESP, tss->x86_tss.esp1, 0);
+	wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) sysenter_entry, 0);
+	put_cpu();	
+}
+
+static struct vm_area_struct gate_vma;
+
+static int __init gate_vma_init(void)
+{
+	gate_vma.vm_mm = NULL;
+	gate_vma.vm_start = FIXADDR_USER_START;
+	gate_vma.vm_end = FIXADDR_USER_END;
+	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
+	gate_vma.vm_page_prot = __P101;
+	/*
+	 * Make sure the vDSO gets into every core dump.
+	 * Dumping its contents makes post-mortem fully interpretable later
+	 * without matching up the same kernel and hardware config to see
+	 * what PC values meant.
+	 */
+	gate_vma.vm_flags |= VM_ALWAYSDUMP;
+	return 0;
+}
+
+/*
+ * These symbols are defined by vsyscall.o to mark the bounds
+ * of the ELF DSO images included therein.
+ */
+extern const char vsyscall_int80_start, vsyscall_int80_end;
+extern const char vsyscall_sysenter_start, vsyscall_sysenter_end;
+static struct page *syscall_pages[1];
+
+static void map_compat_vdso(int map)
+{
+	static int vdso_mapped;
+
+	if (map == vdso_mapped)
+		return;
+
+	vdso_mapped = map;
+
+	__set_fixmap(FIX_VDSO, page_to_pfn(syscall_pages[0]) << PAGE_SHIFT,
+		     map ? PAGE_READONLY_EXEC : PAGE_NONE);
+
+	/* flush stray tlbs */
+	flush_tlb_all();
+}
+
+int __init sysenter_setup(void)
+{
+	void *syscall_page = (void *)get_zeroed_page(GFP_ATOMIC);
+	const void *vsyscall;
+	size_t vsyscall_len;
+
+	syscall_pages[0] = virt_to_page(syscall_page);
+
+	gate_vma_init();
+
+	printk("Compat vDSO mapped to %08lx.\n", __fix_to_virt(FIX_VDSO));
+
+	if (!boot_cpu_has(X86_FEATURE_SEP)) {
+		vsyscall = &vsyscall_int80_start;
+		vsyscall_len = &vsyscall_int80_end - &vsyscall_int80_start;
+	} else {
+		vsyscall = &vsyscall_sysenter_start;
+		vsyscall_len = &vsyscall_sysenter_end - &vsyscall_sysenter_start;
+	}
+
+	memcpy(syscall_page, vsyscall, vsyscall_len);
+	relocate_vdso(syscall_page);
+
+	return 0;
+}
+
+/* Setup a VMA at program startup for the vsyscall page */
+int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack)
+{
+	struct mm_struct *mm = current->mm;
+	unsigned long addr;
+	int ret = 0;
+	bool compat;
+
+	down_write(&mm->mmap_sem);
+
+	/* Test compat mode once here, in case someone
+	   changes it via sysctl */
+	compat = (vdso_enabled == VDSO_COMPAT);
+
+	map_compat_vdso(compat);
+
+	if (compat)
+		addr = VDSO_HIGH_BASE;
+	else {
+		addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
+		if (IS_ERR_VALUE(addr)) {
+			ret = addr;
+			goto up_fail;
+		}
+
+		/*
+		 * MAYWRITE to allow gdb to COW and set breakpoints
+		 *
+		 * Make sure the vDSO gets into every core dump.
+		 * Dumping its contents makes post-mortem fully
+		 * interpretable later without matching up the same
+		 * kernel and hardware config to see what PC values
+		 * meant.
+		 */
+		ret = install_special_mapping(mm, addr, PAGE_SIZE,
+					      VM_READ|VM_EXEC|
+					      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
+					      VM_ALWAYSDUMP,
+					      syscall_pages);
+
+		if (ret)
+			goto up_fail;
+	}
+
+	current->mm->context.vdso = (void *)addr;
+	current_thread_info()->sysenter_return =
+		VDSO32_SYMBOL(addr, SYSENTER_RETURN);
+
+  up_fail:
+	up_write(&mm->mmap_sem);
+
+	return ret;
+}
+
+const char *arch_vma_name(struct vm_area_struct *vma)
+{
+	if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
+		return "[vdso]";
+	return NULL;
+}
+
+struct vm_area_struct *get_gate_vma(struct task_struct *tsk)
+{
+	struct mm_struct *mm = tsk->mm;
+
+	/* Check to see if this task was created in compat vdso mode */
+	if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE)
+		return &gate_vma;
+	return NULL;
+}
+
+int in_gate_area(struct task_struct *task, unsigned long addr)
+{
+	const struct vm_area_struct *vma = get_gate_vma(task);
+
+	return vma && addr >= vma->vm_start && addr < vma->vm_end;
+}
+
+int in_gate_area_no_task(unsigned long addr)
+{
+	return 0;
+}
-- 
cgit v1.2.3-59-g8ed1b


From 0aa97fb22624f18e5925d702ab0364d3838cfd91 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:43 +0100
Subject: x86 vDSO: ia32_sysenter_target

This harmonizes the name for the entry point from the 32-bit sysenter
instruction across 32-bit and 64-bit kernels.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/entry_32.S   | 10 +++++-----
 arch/x86/vdso/vdso32-setup.c |  4 ++--
 2 files changed, 7 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index d63609dd64b9..153bb87a4eea 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -283,7 +283,7 @@ END(resume_kernel)
    the vsyscall page.  See vsyscall-sysentry.S, which defines the symbol.  */
 
 	# sysenter call handler stub
-ENTRY(sysenter_entry)
+ENTRY(ia32_sysenter_target)
 	CFI_STARTPROC simple
 	CFI_SIGNAL_FRAME
 	CFI_DEF_CFA esp, 0
@@ -360,7 +360,7 @@ sysenter_past_esp:
 	.align 4
 	.long 1b,2b
 .popsection
-ENDPROC(sysenter_entry)
+ENDPROC(ia32_sysenter_target)
 
 	# system call handler stub
 ENTRY(system_call)
@@ -768,7 +768,7 @@ label:						\
 
 KPROBE_ENTRY(debug)
 	RING0_INT_FRAME
-	cmpl $sysenter_entry,(%esp)
+	cmpl $ia32_sysenter_target,(%esp)
 	jne debug_stack_correct
 	FIX_STACK(12, debug_stack_correct, debug_esp_fix_insn)
 debug_stack_correct:
@@ -799,7 +799,7 @@ KPROBE_ENTRY(nmi)
 	popl %eax
 	CFI_ADJUST_CFA_OFFSET -4
 	je nmi_espfix_stack
-	cmpl $sysenter_entry,(%esp)
+	cmpl $ia32_sysenter_target,(%esp)
 	je nmi_stack_fixup
 	pushl %eax
 	CFI_ADJUST_CFA_OFFSET 4
@@ -812,7 +812,7 @@ KPROBE_ENTRY(nmi)
 	popl %eax
 	CFI_ADJUST_CFA_OFFSET -4
 	jae nmi_stack_correct
-	cmpl $sysenter_entry,12(%esp)
+	cmpl $ia32_sysenter_target,12(%esp)
 	je nmi_debug_stack_check
 nmi_stack_correct:
 	/* We have a RING0_INT_FRAME here */
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index 85c52d23ee40..fb71a93c5dce 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -54,7 +54,7 @@ static int __init vdso_setup(char *s)
 
 __setup("vdso=", vdso_setup);
 
-extern asmlinkage void sysenter_entry(void);
+extern asmlinkage void ia32_sysenter_target(void);
 
 static __init void reloc_symtab(Elf32_Ehdr *ehdr,
 				unsigned offset, unsigned size)
@@ -187,7 +187,7 @@ void enable_sep_cpu(void)
 	tss->x86_tss.esp1 = sizeof(struct tss_struct) + (unsigned long) tss;
 	wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0);
 	wrmsr(MSR_IA32_SYSENTER_ESP, tss->x86_tss.esp1, 0);
-	wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) sysenter_entry, 0);
+	wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) ia32_sysenter_target, 0);
 	put_cpu();	
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 36197c92a20c142fc2a068e0366053d770fa0096 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:43 +0100
Subject: x86 vDSO: ia32 sysenter_return

This changes the 64-bit kernel's support for the 32-bit sysenter
instruction to use stored fields rather than constants for the
user-mode return address, as the 32-bit kernel does.  This adds a
sysenter_return field to struct thread_info, as 32-bit has.  There
is no observable effect from this yet.  It makes the assembly code
independent of the 32-bit vDSO mapping address, paving the way for
making the vDSO address vary as it does on the 32-bit kernel.

[ akpm@linux-foundation.org: build fix on !CONFIG_IA32_EMULATION ]

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ia32entry.S        | 7 +++----
 arch/x86/ia32/syscall32.c        | 4 ++++
 arch/x86/kernel/asm-offsets_64.c | 3 +++
 include/asm-x86/thread_info_64.h | 3 +++
 4 files changed, 13 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index df588f0f76e1..2499a324feaa 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -12,7 +12,6 @@
 #include <asm/ia32_unistd.h>	
 #include <asm/thread_info.h>	
 #include <asm/segment.h>
-#include <asm/vsyscall32.h>
 #include <asm/irqflags.h>
 #include <linux/linkage.h>
 
@@ -104,7 +103,7 @@ ENTRY(ia32_sysenter_target)
 	pushfq
 	CFI_ADJUST_CFA_OFFSET 8
 	/*CFI_REL_OFFSET rflags,0*/
-	movl	$VSYSCALL32_SYSEXIT, %r10d
+	movl	8*3-THREAD_SIZE+threadinfo_sysenter_return(%rsp), %r10d
 	CFI_REGISTER rip,r10
 	pushq	$__USER32_CS
 	CFI_ADJUST_CFA_OFFSET 8
@@ -142,6 +141,8 @@ sysenter_do_call:
 	andl    $~TS_COMPAT,threadinfo_status(%r10)
 	/* clear IF, that popfq doesn't enable interrupts early */
 	andl  $~0x200,EFLAGS-R11(%rsp) 
+	movl	RIP-R11(%rsp),%edx		/* User %eip */
+	CFI_REGISTER rip,rdx
 	RESTORE_ARGS 1,24,1,1,1,1
 	popfq
 	CFI_ADJUST_CFA_OFFSET -8
@@ -149,8 +150,6 @@ sysenter_do_call:
 	popq	%rcx				/* User %esp */
 	CFI_ADJUST_CFA_OFFSET -8
 	CFI_REGISTER rsp,rcx
-	movl	$VSYSCALL32_SYSEXIT,%edx	/* User %eip */
-	CFI_REGISTER rip,rdx
 	TRACE_IRQS_ON
 	swapgs
 	sti		/* sti only takes effect after the next instruction */
diff --git a/arch/x86/ia32/syscall32.c b/arch/x86/ia32/syscall32.c
index d751d96c2ef2..98ff99f5b59a 100644
--- a/arch/x86/ia32/syscall32.c
+++ b/arch/x86/ia32/syscall32.c
@@ -46,6 +46,10 @@ int syscall32_setup_pages(struct linux_binprm *bprm, int exstack)
 				      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
 				      VM_ALWAYSDUMP,
 				      syscall32_pages);
+	if (ret == 0) {
+		current->mm->context.vdso = (void __user *)VSYSCALL32_BASE;
+		current_thread_info()->sysenter_return = VSYSCALL32_SYSEXIT;
+	}
 	up_write(&mm->mmap_sem);
 	return ret;
 }
diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index 40f41752c1df..c27c646214f4 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -46,6 +46,9 @@ int main(void)
 	ENTRY(addr_limit);
 	ENTRY(preempt_count);
 	ENTRY(status);
+#ifdef CONFIG_IA32_EMULATION
+	ENTRY(sysenter_return);
+#endif
 	BLANK();
 #undef ENTRY
 #define ENTRY(entry) DEFINE(pda_ ## entry, offsetof(struct x8664_pda, entry))
diff --git a/include/asm-x86/thread_info_64.h b/include/asm-x86/thread_info_64.h
index 1ac23c157231..c8e7736fc792 100644
--- a/include/asm-x86/thread_info_64.h
+++ b/include/asm-x86/thread_info_64.h
@@ -33,6 +33,9 @@ struct thread_info {
 
 	mm_segment_t		addr_limit;	
 	struct restart_block    restart_block;
+#ifdef CONFIG_IA32_EMULATION
+	void __user		*sysenter_return;
+#endif
 };
 #endif
 
-- 
cgit v1.2.3-59-g8ed1b


From 00f8b1bc0e44ba94fb33e1fbd8ac82841d7cc570 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:43 +0100
Subject: x86 vDSO: ia32 vdso32-syscall build

This puts the syscall version of the 32-bit vDSO in arch/x86/vdso/vdso32/
for 64-bit IA32 support.  This is not used yet, but it paves the way for
consolidating the 32-bit vDSO source and build logic all in one place.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/vdso/Makefile           |  1 +
 arch/x86/vdso/vdso32/sigreturn.S |  9 ++++--
 arch/x86/vdso/vdso32/syscall.S   | 69 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 76 insertions(+), 3 deletions(-)
 create mode 100644 arch/x86/vdso/vdso32/syscall.S

(limited to 'arch')

diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index 1efe785979a2..1127c716df02 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -71,6 +71,7 @@ $(obj)/%-syms.lds: $(obj)/%.so.dbg FORCE
 #
 obj-$(VDSO32-y)			+= vdso32-syms.lds
 vdso32.so-$(CONFIG_X86_32)	+= int80
+vdso32.so-$(CONFIG_COMPAT)	+= syscall
 vdso32.so-$(VDSO32-y)		+= sysenter
 
 CPPFLAGS_vdso32.lds = $(CPPFLAGS_vdso.lds)
diff --git a/arch/x86/vdso/vdso32/sigreturn.S b/arch/x86/vdso/vdso32/sigreturn.S
index 778f4649e32f..8d65a0a0eb70 100644
--- a/arch/x86/vdso/vdso32/sigreturn.S
+++ b/arch/x86/vdso/vdso32/sigreturn.S
@@ -6,9 +6,12 @@
  * routines are constant for all vsyscall implementations.
  */
 
-#include <asm/unistd.h>
+#include <asm/unistd_32.h>
 #include <asm/asm-offsets.h>
 
+#ifndef SYSCALL_ENTER_KERNEL
+#define	SYSCALL_ENTER_KERNEL	int $0x80
+#endif
 
 /* XXX
    Should these be named "_sigtramp" or something?
@@ -22,7 +25,7 @@ __kernel_sigreturn:
 .LSTART_sigreturn:
 	popl %eax		/* XXX does this mean it needs unwind info? */
 	movl $__NR_sigreturn, %eax
-	int $0x80
+	SYSCALL_ENTER_KERNEL
 .LEND_sigreturn:
 	.size __kernel_sigreturn,.-.LSTART_sigreturn
 
@@ -32,7 +35,7 @@ __kernel_sigreturn:
 __kernel_rt_sigreturn:
 .LSTART_rt_sigreturn:
 	movl $__NR_rt_sigreturn, %eax
-	int $0x80
+	SYSCALL_ENTER_KERNEL
 .LEND_rt_sigreturn:
 	.size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn
 	.balign 32
diff --git a/arch/x86/vdso/vdso32/syscall.S b/arch/x86/vdso/vdso32/syscall.S
new file mode 100644
index 000000000000..333bfb552c88
--- /dev/null
+++ b/arch/x86/vdso/vdso32/syscall.S
@@ -0,0 +1,69 @@
+/*
+ * Code for the vsyscall page.  This version uses the syscall instruction.
+ */
+
+#include <asm/asm-offsets.h>
+#include <asm/segment.h>
+
+	.text
+	.globl __kernel_vsyscall
+	.type __kernel_vsyscall,@function
+__kernel_vsyscall:
+.LSTART_vsyscall:
+	push	%ebp
+.Lpush_ebp:
+	movl	%ecx, %ebp
+	syscall
+	movl	$__USER32_DS, %ecx
+	movl	%ecx, %ss
+	movl	%ebp, %ecx
+	popl	%ebp
+.Lpop_ebp:
+	ret
+.LEND_vsyscall:
+	.size __kernel_vsyscall,.-.LSTART_vsyscall
+
+	.section .eh_frame,"a",@progbits
+.LSTARTFRAME:
+	.long .LENDCIE-.LSTARTCIE
+.LSTARTCIE:
+	.long 0			/* CIE ID */
+	.byte 1			/* Version number */
+	.string "zR"		/* NUL-terminated augmentation string */
+	.uleb128 1		/* Code alignment factor */
+	.sleb128 -4		/* Data alignment factor */
+	.byte 8			/* Return address register column */
+	.uleb128 1		/* Augmentation value length */
+	.byte 0x1b		/* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
+	.byte 0x0c		/* DW_CFA_def_cfa */
+	.uleb128 4
+	.uleb128 4
+	.byte 0x88		/* DW_CFA_offset, column 0x8 */
+	.uleb128 1
+	.align 4
+.LENDCIE:
+
+	.long .LENDFDE1-.LSTARTFDE1	/* Length FDE */
+.LSTARTFDE1:
+	.long .LSTARTFDE1-.LSTARTFRAME	/* CIE pointer */
+	.long .LSTART_vsyscall-.	/* PC-relative start address */
+	.long .LEND_vsyscall-.LSTART_vsyscall
+	.uleb128 0			/* Augmentation length */
+	/* What follows are the instructions for the table generation.
+	   We have to record all changes of the stack pointer.  */
+	.byte 0x40 + .Lpush_ebp-.LSTART_vsyscall /* DW_CFA_advance_loc */
+	.byte 0x0e		/* DW_CFA_def_cfa_offset */
+	.uleb128 8
+	.byte 0x85, 0x02	/* DW_CFA_offset %ebp -8 */
+	.byte 0x40 + .Lpop_ebp-.Lpush_ebp /* DW_CFA_advance_loc */
+	.byte 0xc5		/* DW_CFA_restore %ebp */
+	.byte 0x0e		/* DW_CFA_def_cfa_offset */
+	.uleb128 4
+	.align 4
+.LENDFDE1:
+
+/*
+ * Get the common code for the sigreturn entry points.
+ */
+#define SYSCALL_ENTER_KERNEL	syscall
+#include "sigreturn.S"
-- 
cgit v1.2.3-59-g8ed1b


From af65d64845a90c8f2fc90b97e2148ff74672e979 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:43 +0100
Subject: x86 vDSO: consolidate vdso32

This makes x86_64's ia32 emulation support share the sources used in the
32-bit kernel for the 32-bit vDSO and much of its setup code.

The 32-bit vDSO mapping now behaves the same on x86_64 as on native 32-bit.
The abi.syscall32 sysctl on x86_64 now takes the same values that
vm.vdso_enabled takes on the 32-bit kernel.  That is, 1 means a randomized
vDSO location, 2 means the fixed old address.  The CONFIG_COMPAT_VDSO
option is now available to make this the default setting, the same meaning
it has for the 32-bit kernel.  (This does not affect the 64-bit vDSO.)

The argument vdso32=[012] can be used on both 32-bit and 64-bit kernels to
set this paramter at boot time.  The vdso=[012] argument still does this
same thing on the 32-bit kernel.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/kernel-parameters.txt |   5 ++
 arch/x86/Kconfig                    |   4 +-
 arch/x86/ia32/Makefile              |   2 +-
 arch/x86/ia32/ia32_binfmt.c         |   9 ++-
 arch/x86/ia32/ia32_signal.c         |  22 ++++---
 arch/x86/vdso/Makefile              |   2 +-
 arch/x86/vdso/vdso32-setup.c        | 119 ++++++++++++++++++++++++++++--------
 arch/x86/vdso/vdso32.S              |  16 +++--
 arch/x86/xen/setup.c                |   4 +-
 include/asm-x86/elf.h               |  23 ++++---
 10 files changed, 146 insertions(+), 60 deletions(-)

(limited to 'arch')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index b427b7c0e5d0..b3f20beea411 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1988,6 +1988,11 @@ and is between 256 and 4096 characters. It is defined in the file
 			vdso=1: enable VDSO (default)
 			vdso=0: disable VDSO mapping
 
+	vdso32=		[X86-32,X86-64]
+			vdso32=2: enable compat VDSO (default with COMPAT_VDSO)
+			vdso32=1: enable 32-bit VDSO (default)
+			vdso32=0: disable 32-bit VDSO mapping
+
 	vector=		[IA-64,SMP]
 			vector=percpu: enable percpu vector domain
 
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 80b7ba4056db..2f4d88babd36 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1191,9 +1191,9 @@ config HOTPLUG_CPU
 config COMPAT_VDSO
 	bool "Compat VDSO support"
 	default y
-	depends on X86_32
+	depends on X86_32 || IA32_EMULATION
 	help
-	  Map the VDSO to the predictable old-style address too.
+	  Map the 32-bit VDSO to the predictable old-style address too.
 	---help---
 	  Say N here if you are running a sufficiently recent glibc
 	  version (2.3.3 or later), to remove the high-mapped
diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index a3c997e9f39a..1f58a21a41dc 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -3,7 +3,7 @@
 #
 
 obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o tls32.o \
-	ia32_binfmt.o fpu32.o ptrace32.o syscall32.o syscall32_syscall.o
+	ia32_binfmt.o fpu32.o ptrace32.o
 
 sysv-$(CONFIG_SYSVIPC) := ipc32.o
 obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
diff --git a/arch/x86/ia32/ia32_binfmt.c b/arch/x86/ia32/ia32_binfmt.c
index 55822d2cf053..e32974c3dd3b 100644
--- a/arch/x86/ia32/ia32_binfmt.c
+++ b/arch/x86/ia32/ia32_binfmt.c
@@ -26,7 +26,7 @@
 #include <asm/i387.h>
 #include <asm/uaccess.h>
 #include <asm/ia32.h>
-#include <asm/vsyscall32.h>
+#include <asm/vdso.h>
 
 #undef	ELF_ARCH
 #undef	ELF_CLASS
@@ -47,14 +47,13 @@
 #define AT_SYSINFO 32
 #define AT_SYSINFO_EHDR		33
 
-int sysctl_vsyscall32 = 1;
+extern int sysctl_vsyscall32;
 
 #undef ARCH_DLINFO
 #define ARCH_DLINFO do {  \
 	if (sysctl_vsyscall32) { \
-		current->mm->context.vdso = (void *)VSYSCALL32_BASE;	\
-		NEW_AUX_ENT(AT_SYSINFO, (u32)(u64)VSYSCALL32_VSYSCALL); \
-		NEW_AUX_ENT(AT_SYSINFO_EHDR, VSYSCALL32_BASE);    \
+		NEW_AUX_ENT(AT_SYSINFO, (u32)VDSO_ENTRY);		\
+		NEW_AUX_ENT(AT_SYSINFO_EHDR, (u32)VDSO_CURRENT_BASE);	\
 	}	\
 } while(0)
 
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 0fc5d8563e19..39356a756b28 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -31,7 +31,7 @@
 #include <asm/sigcontext32.h>
 #include <asm/fpu32.h>
 #include <asm/proto.h>
-#include <asm/vsyscall32.h>
+#include <asm/vdso.h>
 
 #define DEBUG_SIG 0
 
@@ -465,13 +465,16 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
 			goto give_sigsegv;
 	}
 
-	/* Return stub is in 32bit vsyscall page */
-	if (current->binfmt->hasvdso)
-		restorer = VSYSCALL32_SIGRETURN;
-	else
-		restorer = (void *)&frame->retcode;
-	if (ka->sa.sa_flags & SA_RESTORER)
+	if (ka->sa.sa_flags & SA_RESTORER) {
 		restorer = ka->sa.sa_restorer;
+	} else {
+		/* Return stub is in 32bit vsyscall page */
+		if (current->binfmt->hasvdso)
+			restorer = VDSO32_SYMBOL(current->mm->context.vdso,
+						 sigreturn);
+		else
+			restorer = (void *)&frame->retcode;
+	}
 	err |= __put_user(ptr_to_compat(restorer), &frame->pretcode);
 
 	/*
@@ -519,7 +522,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 {
 	struct rt_sigframe __user *frame;
 	struct exec_domain *ed = current_thread_info()->exec_domain;
-	void __user *restorer = VSYSCALL32_RTSIGRETURN;
+	void __user *restorer;
 	int err = 0;
 
 	/* __copy_to_user optimizes that into a single 8 byte store */
@@ -564,6 +567,9 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 
 	if (ka->sa.sa_flags & SA_RESTORER)
 		restorer = ka->sa.sa_restorer;
+	else
+		restorer = VDSO32_SYMBOL(current->mm->context.vdso,
+					 rt_sigreturn);
 	err |= __put_user(ptr_to_compat(restorer), &frame->pretcode);
 
 	/*
diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index 1127c716df02..47bc2760e6a8 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -15,7 +15,7 @@ vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o vvar.o
 
 # files to link into kernel
 obj-$(VDSO64-y)			+= vma.o vdso.o
-obj-$(CONFIG_X86_32)		+= vdso32.o vdso32-setup.o
+obj-$(VDSO32-y)			+= vdso32.o vdso32-setup.o
 
 vobjs := $(foreach F,$(vobjs-y),$(obj)/$F)
 
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index fb71a93c5dce..d97a6d7d062b 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -24,6 +24,7 @@
 #include <asm/elf.h>
 #include <asm/tlbflush.h>
 #include <asm/vdso.h>
+#include <asm/proto.h>
 
 enum {
 	VDSO_DISABLED = 0,
@@ -37,14 +38,24 @@ enum {
 #define VDSO_DEFAULT	VDSO_ENABLED
 #endif
 
+#ifdef CONFIG_X86_64
+#define vdso_enabled			sysctl_vsyscall32
+#define arch_setup_additional_pages	syscall32_setup_pages
+#endif
+
+/*
+ * This is the difference between the prelinked addresses in the vDSO images
+ * and the VDSO_HIGH_BASE address where CONFIG_COMPAT_VDSO places the vDSO
+ * in the user address space.
+ */
+#define VDSO_ADDR_ADJUST	(VDSO_HIGH_BASE - (unsigned long)VDSO32_PRELINK)
+
 /*
  * Should the kernel map a VDSO page into processes and pass its
  * address down to glibc upon exec()?
  */
 unsigned int __read_mostly vdso_enabled = VDSO_DEFAULT;
 
-EXPORT_SYMBOL_GPL(vdso_enabled);
-
 static int __init vdso_setup(char *s)
 {
 	vdso_enabled = simple_strtoul(s, NULL, 0);
@@ -52,9 +63,18 @@ static int __init vdso_setup(char *s)
 	return 1;
 }
 
-__setup("vdso=", vdso_setup);
+/*
+ * For consistency, the argument vdso32=[012] affects the 32-bit vDSO
+ * behavior on both 64-bit and 32-bit kernels.
+ * On 32-bit kernels, vdso=[012] means the same thing.
+ */
+__setup("vdso32=", vdso_setup);
 
-extern asmlinkage void ia32_sysenter_target(void);
+#ifdef CONFIG_X86_32
+__setup_param("vdso=", vdso32_setup, vdso_setup, 0);
+
+EXPORT_SYMBOL_GPL(vdso_enabled);
+#endif
 
 static __init void reloc_symtab(Elf32_Ehdr *ehdr,
 				unsigned offset, unsigned size)
@@ -79,7 +99,7 @@ static __init void reloc_symtab(Elf32_Ehdr *ehdr,
 		case STT_FUNC:
 		case STT_SECTION:
 		case STT_FILE:
-			sym->st_value += VDSO_HIGH_BASE;
+			sym->st_value += VDSO_ADDR_ADJUST;
 		}
 	}
 }
@@ -105,7 +125,7 @@ static __init void reloc_dyn(Elf32_Ehdr *ehdr, unsigned offset)
 		case DT_VERNEED:
 		case DT_ADDRRNGLO ... DT_ADDRRNGHI:
 			/* definitely pointers needing relocation */
-			dyn->d_un.d_ptr += VDSO_HIGH_BASE;
+			dyn->d_un.d_ptr += VDSO_ADDR_ADJUST;
 			break;
 
 		case DT_ENCODING ... OLD_DT_LOOS-1:
@@ -114,7 +134,7 @@ static __init void reloc_dyn(Elf32_Ehdr *ehdr, unsigned offset)
 			   they're even */
 			if (dyn->d_tag >= DT_ENCODING &&
 			    (dyn->d_tag & 1) == 0)
-				dyn->d_un.d_ptr += VDSO_HIGH_BASE;
+				dyn->d_un.d_ptr += VDSO_ADDR_ADJUST;
 			break;
 
 		case DT_VERDEFNUM:
@@ -143,15 +163,15 @@ static __init void relocate_vdso(Elf32_Ehdr *ehdr)
 	int i;
 
 	BUG_ON(memcmp(ehdr->e_ident, ELFMAG, 4) != 0 ||
-	       !elf_check_arch(ehdr) ||
+	       !elf_check_arch_ia32(ehdr) ||
 	       ehdr->e_type != ET_DYN);
 
-	ehdr->e_entry += VDSO_HIGH_BASE;
+	ehdr->e_entry += VDSO_ADDR_ADJUST;
 
 	/* rebase phdrs */
 	phdr = (void *)ehdr + ehdr->e_phoff;
 	for (i = 0; i < ehdr->e_phnum; i++) {
-		phdr[i].p_vaddr += VDSO_HIGH_BASE;
+		phdr[i].p_vaddr += VDSO_ADDR_ADJUST;
 
 		/* relocate dynamic stuff */
 		if (phdr[i].p_type == PT_DYNAMIC)
@@ -164,7 +184,7 @@ static __init void relocate_vdso(Elf32_Ehdr *ehdr)
 		if (!(shdr[i].sh_flags & SHF_ALLOC))
 			continue;
 
-		shdr[i].sh_addr += VDSO_HIGH_BASE;
+		shdr[i].sh_addr += VDSO_ADDR_ADJUST;
 
 		if (shdr[i].sh_type == SHT_SYMTAB ||
 		    shdr[i].sh_type == SHT_DYNSYM)
@@ -173,6 +193,45 @@ static __init void relocate_vdso(Elf32_Ehdr *ehdr)
 	}
 }
 
+/*
+ * These symbols are defined by vdso32.S to mark the bounds
+ * of the ELF DSO images included therein.
+ */
+extern const char vdso32_default_start, vdso32_default_end;
+extern const char vdso32_sysenter_start, vdso32_sysenter_end;
+static struct page *vdso32_pages[1];
+
+#ifdef CONFIG_X86_64
+
+static int use_sysenter __read_mostly = -1;
+
+#define	vdso32_sysenter()	(use_sysenter > 0)
+
+/* May not be __init: called during resume */
+void syscall32_cpu_init(void)
+{
+	if (use_sysenter < 0)
+		use_sysenter = (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL);
+
+	/* Load these always in case some future AMD CPU supports
+	   SYSENTER from compat mode too. */
+	checking_wrmsrl(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS);
+	checking_wrmsrl(MSR_IA32_SYSENTER_ESP, 0ULL);
+	checking_wrmsrl(MSR_IA32_SYSENTER_EIP, (u64)ia32_sysenter_target);
+
+	wrmsrl(MSR_CSTAR, ia32_cstar_target);
+}
+
+#define compat_uses_vma		1
+
+static inline void map_compat_vdso(int map)
+{
+}
+
+#else  /* CONFIG_X86_32 */
+
+#define vdso32_sysenter()	(boot_cpu_has(X86_FEATURE_SEP))
+
 void enable_sep_cpu(void)
 {
 	int cpu = get_cpu();
@@ -210,13 +269,7 @@ static int __init gate_vma_init(void)
 	return 0;
 }
 
-/*
- * These symbols are defined by vsyscall.o to mark the bounds
- * of the ELF DSO images included therein.
- */
-extern const char vsyscall_int80_start, vsyscall_int80_end;
-extern const char vsyscall_sysenter_start, vsyscall_sysenter_end;
-static struct page *syscall_pages[1];
+#define compat_uses_vma		0
 
 static void map_compat_vdso(int map)
 {
@@ -227,31 +280,35 @@ static void map_compat_vdso(int map)
 
 	vdso_mapped = map;
 
-	__set_fixmap(FIX_VDSO, page_to_pfn(syscall_pages[0]) << PAGE_SHIFT,
+	__set_fixmap(FIX_VDSO, page_to_pfn(vdso32_pages[0]) << PAGE_SHIFT,
 		     map ? PAGE_READONLY_EXEC : PAGE_NONE);
 
 	/* flush stray tlbs */
 	flush_tlb_all();
 }
 
+#endif	/* CONFIG_X86_64 */
+
 int __init sysenter_setup(void)
 {
 	void *syscall_page = (void *)get_zeroed_page(GFP_ATOMIC);
 	const void *vsyscall;
 	size_t vsyscall_len;
 
-	syscall_pages[0] = virt_to_page(syscall_page);
+	vdso32_pages[0] = virt_to_page(syscall_page);
 
+#ifdef CONFIG_X86_32
 	gate_vma_init();
 
 	printk("Compat vDSO mapped to %08lx.\n", __fix_to_virt(FIX_VDSO));
+#endif
 
-	if (!boot_cpu_has(X86_FEATURE_SEP)) {
-		vsyscall = &vsyscall_int80_start;
-		vsyscall_len = &vsyscall_int80_end - &vsyscall_int80_start;
+	if (!vdso32_sysenter()) {
+		vsyscall = &vdso32_default_start;
+		vsyscall_len = &vdso32_default_end - &vdso32_default_start;
 	} else {
-		vsyscall = &vsyscall_sysenter_start;
-		vsyscall_len = &vsyscall_sysenter_end - &vsyscall_sysenter_start;
+		vsyscall = &vdso32_sysenter_start;
+		vsyscall_len = &vdso32_sysenter_end - &vdso32_sysenter_start;
 	}
 
 	memcpy(syscall_page, vsyscall, vsyscall_len);
@@ -284,7 +341,9 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack)
 			ret = addr;
 			goto up_fail;
 		}
+	}
 
+	if (compat_uses_vma || !compat) {
 		/*
 		 * MAYWRITE to allow gdb to COW and set breakpoints
 		 *
@@ -298,7 +357,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack)
 					      VM_READ|VM_EXEC|
 					      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
 					      VM_ALWAYSDUMP,
-					      syscall_pages);
+					      vdso32_pages);
 
 		if (ret)
 			goto up_fail;
@@ -314,6 +373,12 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack)
 	return ret;
 }
 
+#ifdef CONFIG_X86_64
+
+__initcall(sysenter_setup);
+
+#else  /* CONFIG_X86_32 */
+
 const char *arch_vma_name(struct vm_area_struct *vma)
 {
 	if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
@@ -342,3 +407,5 @@ int in_gate_area_no_task(unsigned long addr)
 {
 	return 0;
 }
+
+#endif	/* CONFIG_X86_64 */
diff --git a/arch/x86/vdso/vdso32.S b/arch/x86/vdso/vdso32.S
index cab020c99c3d..1e36f72cab86 100644
--- a/arch/x86/vdso/vdso32.S
+++ b/arch/x86/vdso/vdso32.S
@@ -2,14 +2,18 @@
 
 __INITDATA
 
-	.globl vsyscall_int80_start, vsyscall_int80_end
-vsyscall_int80_start:
+	.globl vdso32_default_start, vdso32_default_end
+vdso32_default_start:
+#ifdef CONFIG_X86_32
 	.incbin "arch/x86/vdso/vdso32-int80.so"
-vsyscall_int80_end:
+#else
+	.incbin "arch/x86/vdso/vdso32-syscall.so"
+#endif
+vdso32_default_end:
 
-	.globl vsyscall_sysenter_start, vsyscall_sysenter_end
-vsyscall_sysenter_start:
+	.globl vdso32_sysenter_start, vdso32_sysenter_end
+vdso32_sysenter_start:
 	.incbin "arch/x86/vdso/vdso32-sysenter.so"
-vsyscall_sysenter_end:
+vdso32_sysenter_end:
 
 __FINIT
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index fd91568090f4..7d6d0ef55890 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -62,8 +62,8 @@ static void xen_idle(void)
  */
 static void fiddle_vdso(void)
 {
-	extern char vsyscall_int80_start;
-	u32 *mask = VDSO32_SYMBOL(&vsyscall_int80_start, NOTE_MASK);
+	extern const char vdso32_default_start;
+	u32 *mask = VDSO32_SYMBOL(&vdso32_default_start, NOTE_MASK);
 	*mask |= 1 << VDSO_NOTE_NONEGSEG_BIT;
 }
 
diff --git a/include/asm-x86/elf.h b/include/asm-x86/elf.h
index 70edff2d5671..60f5101d9483 100644
--- a/include/asm-x86/elf.h
+++ b/include/asm-x86/elf.h
@@ -74,17 +74,19 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
 
 #ifdef __KERNEL__
 
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch_ia32(x) \
+	(((x)->e_machine == EM_386) || ((x)->e_machine == EM_486))
+
 #ifdef CONFIG_X86_32
 #include <asm/processor.h>
 #include <asm/system.h>		/* for savesegment */
 #include <asm/desc.h>
 #include <asm/vdso.h>
 
-/*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-#define elf_check_arch(x) \
-	(((x)->e_machine == EM_386) || ((x)->e_machine == EM_486))
+#define elf_check_arch(x)	elf_check_arch_ia32(x)
 
 /* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program starts %edx
    contains a pointer to a function which might be registered using `atexit'.
@@ -247,10 +249,6 @@ extern int dump_task_extended_fpu (struct task_struct *,
 #define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
 
 #define VDSO_HIGH_BASE		(__fix_to_virt(FIX_VDSO))
-#define VDSO_CURRENT_BASE	((unsigned long)current->mm->context.vdso)
-
-#define VDSO_ENTRY \
-	((unsigned long) VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall))
 
 /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
 
@@ -262,6 +260,8 @@ do if (vdso_enabled) {							\
 
 #else /* CONFIG_X86_32 */
 
+#define VDSO_HIGH_BASE		0xffffe000U /* CONFIG_COMPAT_VDSO address */
+
 /* 1GB for 64bit, 8MB for 32bit */
 #define STACK_RND_MASK (test_thread_flag(TIF_IA32) ? 0x7ff : 0x3fffff)
 
@@ -272,6 +272,11 @@ do if (vdso_enabled) {						\
 
 #endif /* !CONFIG_X86_32 */
 
+#define VDSO_CURRENT_BASE	((unsigned long)current->mm->context.vdso)
+
+#define VDSO_ENTRY \
+	((unsigned long) VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall))
+
 struct linux_binprm;
 
 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
-- 
cgit v1.2.3-59-g8ed1b


From 16f4bc738d616962a844e80f7b1fcb52c626542a Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:44 +0100
Subject: x86 vDSO: ia32 vsyscall removal

This removes all the old vsyscall code from arch/x86/ia32/ that is
no longer used because arch/x86/vdso/ code has replaced it.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Makefile_64               |   3 -
 arch/x86/ia32/Makefile             |  37 ----------
 arch/x86/ia32/syscall32.c          |  90 -----------------------
 arch/x86/ia32/syscall32_syscall.S  |  17 -----
 arch/x86/ia32/vsyscall-sigreturn.S | 142 -------------------------------------
 arch/x86/ia32/vsyscall-syscall.S   |  69 ------------------
 arch/x86/ia32/vsyscall-sysenter.S  |  95 -------------------------
 arch/x86/ia32/vsyscall.lds         |  80 ---------------------
 include/asm-x86/Kbuild             |   1 -
 include/asm-x86/vsyscall32.h       |  20 ------
 10 files changed, 554 deletions(-)
 delete mode 100644 arch/x86/ia32/syscall32.c
 delete mode 100644 arch/x86/ia32/syscall32_syscall.S
 delete mode 100644 arch/x86/ia32/vsyscall-sigreturn.S
 delete mode 100644 arch/x86/ia32/vsyscall-syscall.S
 delete mode 100644 arch/x86/ia32/vsyscall-sysenter.S
 delete mode 100644 arch/x86/ia32/vsyscall.lds
 delete mode 100644 include/asm-x86/vsyscall32.h

(limited to 'arch')

diff --git a/arch/x86/Makefile_64 b/arch/x86/Makefile_64
index 93cf17769ff5..d35a0c50b67b 100644
--- a/arch/x86/Makefile_64
+++ b/arch/x86/Makefile_64
@@ -117,9 +117,6 @@ install: vdso_install
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@ 
 
 vdso_install:
-ifeq ($(CONFIG_IA32_EMULATION),y)
-	$(Q)$(MAKE) $(build)=arch/x86/ia32 $@
-endif
 	$(Q)$(MAKE) $(build)=arch/x86/vdso $@
 
 archclean:
diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index 1f58a21a41dc..8c19b763b2fb 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -12,40 +12,3 @@ obj-$(CONFIG_IA32_AOUT) += ia32_aout.o
 
 audit-class-$(CONFIG_AUDIT) := audit.o
 obj-$(CONFIG_IA32_EMULATION) += $(audit-class-y)
-
-$(obj)/syscall32_syscall.o: \
-	$(foreach F,sysenter syscall,$(obj)/vsyscall-$F.so)
-
-# Teach kbuild about targets
-targets := $(foreach F,$(addprefix vsyscall-,sysenter syscall),\
-		     $F.o $F.so $F.so.dbg)
-
-# The DSO images are built using a special linker script
-quiet_cmd_syscall = SYSCALL $@
-      cmd_syscall = $(CC) -m32 -nostdlib -shared \
-			  $(call ld-option, -Wl$(comma)--hash-style=sysv) \
-			   -Wl,-soname=linux-gate.so.1 -o $@ \
-			   -Wl,-T,$(filter-out FORCE,$^)
-
-$(obj)/%.so: OBJCOPYFLAGS := -S
-$(obj)/%.so: $(obj)/%.so.dbg FORCE
-	$(call if_changed,objcopy)
-
-$(obj)/vsyscall-sysenter.so.dbg $(obj)/vsyscall-syscall.so.dbg: \
-$(obj)/vsyscall-%.so.dbg: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
-	$(call if_changed,syscall)
-
-AFLAGS_vsyscall-sysenter.o = -m32 -Wa,-32
-AFLAGS_vsyscall-syscall.o = -m32 -Wa,-32
-
-vdsos := vdso32-sysenter.so vdso32-syscall.so
-
-quiet_cmd_vdso_install = INSTALL $@
-      cmd_vdso_install = cp $(@:vdso32-%.so=$(obj)/vsyscall-%.so.dbg) \
-			    $(MODLIB)/vdso/$@
-
-$(vdsos):
-	@mkdir -p $(MODLIB)/vdso
-	$(call cmd,vdso_install)
-
-vdso_install: $(vdsos)
diff --git a/arch/x86/ia32/syscall32.c b/arch/x86/ia32/syscall32.c
deleted file mode 100644
index 98ff99f5b59a..000000000000
--- a/arch/x86/ia32/syscall32.c
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * Copyright 2002,2003 Andi Kleen, SuSE Labs
- *
- * vsyscall handling for 32bit processes. Map a stub page into it on
- * demand because 32bit cannot reach the kernel's fixmaps
- */
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/gfp.h>
-#include <linux/init.h>
-#include <linux/stringify.h>
-#include <linux/security.h>
-#include <asm/proto.h>
-#include <asm/tlbflush.h>
-#include <asm/ia32_unistd.h>
-#include <asm/vsyscall32.h>
-
-extern unsigned char syscall32_syscall[], syscall32_syscall_end[];
-extern unsigned char syscall32_sysenter[], syscall32_sysenter_end[];
-extern int sysctl_vsyscall32;
-
-static struct page *syscall32_pages[1];
-static int use_sysenter = -1;
-
-struct linux_binprm;
-
-/* Setup a VMA at program startup for the vsyscall page */
-int syscall32_setup_pages(struct linux_binprm *bprm, int exstack)
-{
-	struct mm_struct *mm = current->mm;
-	int ret;
-
-	down_write(&mm->mmap_sem);
-	/*
-	 * MAYWRITE to allow gdb to COW and set breakpoints
-	 *
-	 * Make sure the vDSO gets into every core dump.
-	 * Dumping its contents makes post-mortem fully interpretable later
-	 * without matching up the same kernel and hardware config to see
-	 * what PC values meant.
-	 */
-	/* Could randomize here */
-	ret = install_special_mapping(mm, VSYSCALL32_BASE, PAGE_SIZE,
-				      VM_READ|VM_EXEC|
-				      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
-				      VM_ALWAYSDUMP,
-				      syscall32_pages);
-	if (ret == 0) {
-		current->mm->context.vdso = (void __user *)VSYSCALL32_BASE;
-		current_thread_info()->sysenter_return = VSYSCALL32_SYSEXIT;
-	}
-	up_write(&mm->mmap_sem);
-	return ret;
-}
-
-static int __init init_syscall32(void)
-{
-	char *syscall32_page = (void *)get_zeroed_page(GFP_KERNEL);
-
-	if (!syscall32_page)
-		panic("Cannot allocate syscall32 page");
-	syscall32_pages[0] = virt_to_page(syscall32_page);
-	if (use_sysenter > 0) {
-		memcpy(syscall32_page, syscall32_sysenter,
-		       syscall32_sysenter_end - syscall32_sysenter);
-	} else {
-		memcpy(syscall32_page, syscall32_syscall,
-		       syscall32_syscall_end - syscall32_syscall);
-	}
-	return 0;
-}
-__initcall(init_syscall32);
-
-/* May not be __init: called during resume */
-void syscall32_cpu_init(void)
-{
-	if (use_sysenter < 0)
-		use_sysenter = (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL);
-
-	/*
-	 * Load these always in case some future AMD CPU supports
-	 * SYSENTER from compat mode too.
-	 */
-	checking_wrmsrl(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS);
-	checking_wrmsrl(MSR_IA32_SYSENTER_ESP, 0ULL);
-	checking_wrmsrl(MSR_IA32_SYSENTER_EIP, (u64)ia32_sysenter_target);
-
-	wrmsrl(MSR_CSTAR, ia32_cstar_target);
-}
diff --git a/arch/x86/ia32/syscall32_syscall.S b/arch/x86/ia32/syscall32_syscall.S
deleted file mode 100644
index 933f0f08b1cf..000000000000
--- a/arch/x86/ia32/syscall32_syscall.S
+++ /dev/null
@@ -1,17 +0,0 @@
-/* 32bit VDSOs mapped into user space. */
-
-	.section ".init.data","aw"
-
-	.globl syscall32_syscall
-	.globl syscall32_syscall_end
-
-syscall32_syscall:
-	.incbin "arch/x86/ia32/vsyscall-syscall.so"
-syscall32_syscall_end:
-
-	.globl syscall32_sysenter
-	.globl syscall32_sysenter_end
-
-syscall32_sysenter:
-	.incbin "arch/x86/ia32/vsyscall-sysenter.so"
-syscall32_sysenter_end:
diff --git a/arch/x86/ia32/vsyscall-sigreturn.S b/arch/x86/ia32/vsyscall-sigreturn.S
deleted file mode 100644
index 295eecf91f17..000000000000
--- a/arch/x86/ia32/vsyscall-sigreturn.S
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * Common code for the sigreturn entry points on the vsyscall page.
- * This code uses SYSCALL_ENTER_KERNEL (either syscall or int $0x80)
- * to enter the kernel.
- * This file is #include'd by vsyscall-*.S to define them after the
- * vsyscall entry point.  The addresses we get for these entry points
- * by doing ".balign 32" must match in both versions of the page.
- */
-
-	.code32
-	.section .text.sigreturn,"ax"
-	.balign 32
-	.globl __kernel_sigreturn
-	.type __kernel_sigreturn,@function
-__kernel_sigreturn:
-.LSTART_sigreturn:
-	popl %eax
-	movl $__NR_ia32_sigreturn, %eax
-	SYSCALL_ENTER_KERNEL
-.LEND_sigreturn:
-	.size __kernel_sigreturn,.-.LSTART_sigreturn
-
-	.section .text.rtsigreturn,"ax"
-	.balign 32
-	.globl __kernel_rt_sigreturn
-	.type __kernel_rt_sigreturn,@function
-__kernel_rt_sigreturn:
-.LSTART_rt_sigreturn:
-	movl $__NR_ia32_rt_sigreturn, %eax
-	SYSCALL_ENTER_KERNEL
-.LEND_rt_sigreturn:
-	.size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn
-
-	.section .eh_frame,"a",@progbits
-.LSTARTFRAMES:
-        .long .LENDCIES-.LSTARTCIES
-.LSTARTCIES:
-	.long 0			/* CIE ID */
-	.byte 1			/* Version number */
-	.string "zRS"		/* NUL-terminated augmentation string */
-	.uleb128 1		/* Code alignment factor */
-	.sleb128 -4		/* Data alignment factor */
-	.byte 8			/* Return address register column */
-	.uleb128 1		/* Augmentation value length */
-	.byte 0x1b		/* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
-	.byte 0x0c		/* DW_CFA_def_cfa */
-	.uleb128 4
-	.uleb128 4
-	.byte 0x88		/* DW_CFA_offset, column 0x8 */
-	.uleb128 1
-	.align 4
-.LENDCIES:
-
-	.long .LENDFDE2-.LSTARTFDE2	/* Length FDE */
-.LSTARTFDE2:
-	.long .LSTARTFDE2-.LSTARTFRAMES	/* CIE pointer */
-	/* HACK: The dwarf2 unwind routines will subtract 1 from the
-	   return address to get an address in the middle of the
-	   presumed call instruction.  Since we didn't get here via
-	   a call, we need to include the nop before the real start
-	   to make up for it.  */
-	.long .LSTART_sigreturn-1-.	/* PC-relative start address */
-	.long .LEND_sigreturn-.LSTART_sigreturn+1
-	.uleb128 0			/* Augmentation length */
-	/* What follows are the instructions for the table generation.
-	   We record the locations of each register saved.  This is
-	   complicated by the fact that the "CFA" is always assumed to
-	   be the value of the stack pointer in the caller.  This means
-	   that we must define the CFA of this body of code to be the
-	   saved value of the stack pointer in the sigcontext.  Which
-	   also means that there is no fixed relation to the other 
-	   saved registers, which means that we must use DW_CFA_expression
-	   to compute their addresses.  It also means that when we 
-	   adjust the stack with the popl, we have to do it all over again.  */
-
-#define do_cfa_expr(offset)						\
-	.byte 0x0f;			/* DW_CFA_def_cfa_expression */	\
-	.uleb128 1f-0f;			/*   length */			\
-0:	.byte 0x74;			/*     DW_OP_breg4 */		\
-	.sleb128 offset;		/*      offset */		\
-	.byte 0x06;			/*     DW_OP_deref */		\
-1:
-
-#define do_expr(regno, offset)						\
-	.byte 0x10;			/* DW_CFA_expression */		\
-	.uleb128 regno;			/*   regno */			\
-	.uleb128 1f-0f;			/*   length */			\
-0:	.byte 0x74;			/*     DW_OP_breg4 */		\
-	.sleb128 offset;		/*       offset */		\
-1:
-
-	do_cfa_expr(IA32_SIGCONTEXT_esp+4)
-	do_expr(0, IA32_SIGCONTEXT_eax+4)
-	do_expr(1, IA32_SIGCONTEXT_ecx+4)
-	do_expr(2, IA32_SIGCONTEXT_edx+4)
-	do_expr(3, IA32_SIGCONTEXT_ebx+4)
-	do_expr(5, IA32_SIGCONTEXT_ebp+4)
-	do_expr(6, IA32_SIGCONTEXT_esi+4)
-	do_expr(7, IA32_SIGCONTEXT_edi+4)
-	do_expr(8, IA32_SIGCONTEXT_eip+4)
-
-	.byte 0x42	/* DW_CFA_advance_loc 2 -- nop; popl eax. */
-
-	do_cfa_expr(IA32_SIGCONTEXT_esp)
-	do_expr(0, IA32_SIGCONTEXT_eax)
-	do_expr(1, IA32_SIGCONTEXT_ecx)
-	do_expr(2, IA32_SIGCONTEXT_edx)
-	do_expr(3, IA32_SIGCONTEXT_ebx)
-	do_expr(5, IA32_SIGCONTEXT_ebp)
-	do_expr(6, IA32_SIGCONTEXT_esi)
-	do_expr(7, IA32_SIGCONTEXT_edi)
-	do_expr(8, IA32_SIGCONTEXT_eip)
-
-	.align 4
-.LENDFDE2:
-
-	.long .LENDFDE3-.LSTARTFDE3	/* Length FDE */
-.LSTARTFDE3:
-	.long .LSTARTFDE3-.LSTARTFRAMES	/* CIE pointer */
-	/* HACK: See above wrt unwind library assumptions.  */
-	.long .LSTART_rt_sigreturn-1-.	/* PC-relative start address */
-	.long .LEND_rt_sigreturn-.LSTART_rt_sigreturn+1
-	.uleb128 0			/* Augmentation */
-	/* What follows are the instructions for the table generation.
-	   We record the locations of each register saved.  This is
-	   slightly less complicated than the above, since we don't
-	   modify the stack pointer in the process.  */
-
-	do_cfa_expr(IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_esp)
-	do_expr(0, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_eax)
-	do_expr(1, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ecx)
-	do_expr(2, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_edx)
-	do_expr(3, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ebx)
-	do_expr(5, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ebp)
-	do_expr(6, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_esi)
-	do_expr(7, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_edi)
-	do_expr(8, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_eip)
-
-	.align 4
-.LENDFDE3:
-
-#include "../vdso/vdso32/note.S"
diff --git a/arch/x86/ia32/vsyscall-syscall.S b/arch/x86/ia32/vsyscall-syscall.S
deleted file mode 100644
index cf9ef678de3e..000000000000
--- a/arch/x86/ia32/vsyscall-syscall.S
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Code for the vsyscall page.  This version uses the syscall instruction.
- */
-
-#include <asm/ia32_unistd.h>
-#include <asm/asm-offsets.h>
-#include <asm/segment.h>
-
-	.code32
-	.text
-	.section .text.vsyscall,"ax"
-	.globl __kernel_vsyscall
-	.type __kernel_vsyscall,@function
-__kernel_vsyscall:
-.LSTART_vsyscall:
-	push	%ebp
-.Lpush_ebp:
-	movl	%ecx, %ebp
-	syscall
-	movl	$__USER32_DS, %ecx
-	movl	%ecx, %ss
-	movl	%ebp, %ecx
-	popl	%ebp
-.Lpop_ebp:
-	ret
-.LEND_vsyscall:
-	.size __kernel_vsyscall,.-.LSTART_vsyscall
-
-	.section .eh_frame,"a",@progbits
-.LSTARTFRAME:
-	.long .LENDCIE-.LSTARTCIE
-.LSTARTCIE:
-	.long 0			/* CIE ID */
-	.byte 1			/* Version number */
-	.string "zR"		/* NUL-terminated augmentation string */
-	.uleb128 1		/* Code alignment factor */
-	.sleb128 -4		/* Data alignment factor */
-	.byte 8			/* Return address register column */
-	.uleb128 1		/* Augmentation value length */
-	.byte 0x1b		/* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
-	.byte 0x0c		/* DW_CFA_def_cfa */
-	.uleb128 4
-	.uleb128 4
-	.byte 0x88		/* DW_CFA_offset, column 0x8 */
-	.uleb128 1
-	.align 4
-.LENDCIE:
-
-	.long .LENDFDE1-.LSTARTFDE1	/* Length FDE */
-.LSTARTFDE1:
-	.long .LSTARTFDE1-.LSTARTFRAME	/* CIE pointer */
-	.long .LSTART_vsyscall-.	/* PC-relative start address */
-	.long .LEND_vsyscall-.LSTART_vsyscall
-	.uleb128 0			/* Augmentation length */
-	/* What follows are the instructions for the table generation.
-	   We have to record all changes of the stack pointer.  */
-	.byte 0x40 + .Lpush_ebp-.LSTART_vsyscall /* DW_CFA_advance_loc */
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.uleb128 8
-	.byte 0x85, 0x02	/* DW_CFA_offset %ebp -8 */
-	.byte 0x40 + .Lpop_ebp-.Lpush_ebp /* DW_CFA_advance_loc */
-	.byte 0xc5		/* DW_CFA_restore %ebp */
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.uleb128 4
-	.align 4
-.LENDFDE1:
-
-#define SYSCALL_ENTER_KERNEL	syscall
-#include "vsyscall-sigreturn.S"
diff --git a/arch/x86/ia32/vsyscall-sysenter.S b/arch/x86/ia32/vsyscall-sysenter.S
deleted file mode 100644
index ae056e553d13..000000000000
--- a/arch/x86/ia32/vsyscall-sysenter.S
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Code for the vsyscall page.  This version uses the sysenter instruction.
- */
-
-#include <asm/ia32_unistd.h>
-#include <asm/asm-offsets.h>
-
-	.code32
-	.text
-	.section .text.vsyscall,"ax"
-	.globl __kernel_vsyscall
-	.type __kernel_vsyscall,@function
-__kernel_vsyscall:
-.LSTART_vsyscall:
-	push	%ecx
-.Lpush_ecx:
-	push	%edx
-.Lpush_edx:
-	push	%ebp
-.Lenter_kernel:
-	movl	%esp,%ebp
-	sysenter
-	.space 7,0x90
-	jmp	.Lenter_kernel
-	/* 16: System call normal return point is here! */
-	pop	%ebp
-.Lpop_ebp:
-	pop	%edx
-.Lpop_edx:
-	pop	%ecx
-.Lpop_ecx:
-	ret
-.LEND_vsyscall:
-	.size __kernel_vsyscall,.-.LSTART_vsyscall
-
-	.section .eh_frame,"a",@progbits
-.LSTARTFRAME:
-	.long .LENDCIE-.LSTARTCIE
-.LSTARTCIE:
-	.long 0			/* CIE ID */
-	.byte 1			/* Version number */
-	.string "zR"		/* NUL-terminated augmentation string */
-	.uleb128 1		/* Code alignment factor */
-	.sleb128 -4		/* Data alignment factor */
-	.byte 8			/* Return address register column */
-	.uleb128 1		/* Augmentation value length */
-	.byte 0x1b		/* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
-	.byte 0x0c		/* DW_CFA_def_cfa */
-	.uleb128 4
-	.uleb128 4
-	.byte 0x88		/* DW_CFA_offset, column 0x8 */
-	.uleb128 1
-	.align 4
-.LENDCIE:
-
-	.long .LENDFDE1-.LSTARTFDE1	/* Length FDE */
-.LSTARTFDE1:
-	.long .LSTARTFDE1-.LSTARTFRAME	/* CIE pointer */
-	.long .LSTART_vsyscall-.	/* PC-relative start address */
-	.long .LEND_vsyscall-.LSTART_vsyscall
-	.uleb128 0			/* Augmentation length */
-	/* What follows are the instructions for the table generation.
-	   We have to record all changes of the stack pointer.  */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpush_ecx-.LSTART_vsyscall
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.byte 0x08		/* RA at offset 8 now */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpush_edx-.Lpush_ecx
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.byte 0x0c		/* RA at offset 12 now */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lenter_kernel-.Lpush_edx
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.byte 0x10		/* RA at offset 16 now */
-	.byte 0x85, 0x04	/* DW_CFA_offset %ebp -16 */
-	/* Finally the epilogue.  */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpop_ebp-.Lenter_kernel
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.byte 0x12		/* RA at offset 12 now */
-	.byte 0xc5		/* DW_CFA_restore %ebp */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpop_edx-.Lpop_ebp
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.byte 0x08		/* RA at offset 8 now */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpop_ecx-.Lpop_edx
-	.byte 0x0e		/* DW_CFA_def_cfa_offset */
-	.byte 0x04		/* RA at offset 4 now */
-	.align 4
-.LENDFDE1:
-
-#define SYSCALL_ENTER_KERNEL	int $0x80
-#include "vsyscall-sigreturn.S"
diff --git a/arch/x86/ia32/vsyscall.lds b/arch/x86/ia32/vsyscall.lds
deleted file mode 100644
index 1dc86ff5bcb9..000000000000
--- a/arch/x86/ia32/vsyscall.lds
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Linker script for vsyscall DSO.  The vsyscall page is an ELF shared
- * object prelinked to its virtual address. This script controls its layout.
- */
-
-/* This must match <asm/fixmap.h>.  */
-VSYSCALL_BASE = 0xffffe000;
-
-SECTIONS
-{
-  . = VSYSCALL_BASE + SIZEOF_HEADERS;
-
-  .hash           : { *(.hash) }		:text
-  .gnu.hash       : { *(.gnu.hash) }
-  .dynsym         : { *(.dynsym) }
-  .dynstr         : { *(.dynstr) }
-  .gnu.version    : { *(.gnu.version) }
-  .gnu.version_d  : { *(.gnu.version_d) }
-  .gnu.version_r  : { *(.gnu.version_r) }
-
-  /* This linker script is used both with -r and with -shared.
-     For the layouts to match, we need to skip more than enough
-     space for the dynamic symbol table et al.  If this amount
-     is insufficient, ld -shared will barf.  Just increase it here.  */
-  . = VSYSCALL_BASE + 0x400;
-  
-  .text.vsyscall   : { *(.text.vsyscall) } 	:text =0x90909090
-
-  /* This is an 32bit object and we cannot easily get the offsets
-     into the 64bit kernel. Just hardcode them here. This assumes
-     that all the stubs don't need more than 0x100 bytes. */
-  . = VSYSCALL_BASE + 0x500;
-
-  .text.sigreturn  : { *(.text.sigreturn) }	:text =0x90909090
-
-  . = VSYSCALL_BASE + 0x600;
-
-  .text.rtsigreturn : { *(.text.rtsigreturn) }   :text =0x90909090
-	
-  .note		  : { *(.note.*) }		:text :note
-  .eh_frame_hdr   : { *(.eh_frame_hdr) }	:text :eh_frame_hdr
-  .eh_frame       : { KEEP (*(.eh_frame)) }	:text
-  .dynamic        : { *(.dynamic) }		:text :dynamic
-  .useless        : {
-  	*(.got.plt) *(.got)
-	*(.data .data.* .gnu.linkonce.d.*)
-	*(.dynbss)
-	*(.bss .bss.* .gnu.linkonce.b.*)
-  }						:text
-}
-
-/*
- * We must supply the ELF program headers explicitly to get just one
- * PT_LOAD segment, and set the flags explicitly to make segments read-only.
- */
-PHDRS
-{
-  text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */
-  dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
-  note PT_NOTE FLAGS(4); /* PF_R */
-  eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */
-}
-
-/*
- * This controls what symbols we export from the DSO.
- */
-VERSION
-{
-  LINUX_2.5 {
-    global:
-    	__kernel_vsyscall;
-    	__kernel_sigreturn;
-    	__kernel_rt_sigreturn;
-
-    local: *;
-  };
-}
-
-/* The ELF entry point can be used to set the AT_SYSINFO value.  */
-ENTRY(__kernel_vsyscall);
diff --git a/include/asm-x86/Kbuild b/include/asm-x86/Kbuild
index 12db5a1cdd74..22e3a284c1ed 100644
--- a/include/asm-x86/Kbuild
+++ b/include/asm-x86/Kbuild
@@ -9,7 +9,6 @@ header-y += prctl.h
 header-y += ptrace-abi.h
 header-y += sigcontext32.h
 header-y += ucontext.h
-header-y += vsyscall32.h
 
 unifdef-y += e820.h
 unifdef-y += ist.h
diff --git a/include/asm-x86/vsyscall32.h b/include/asm-x86/vsyscall32.h
deleted file mode 100644
index c631c082f8f7..000000000000
--- a/include/asm-x86/vsyscall32.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef _ASM_VSYSCALL32_H
-#define _ASM_VSYSCALL32_H 1
-
-/* Values need to match arch/x86_64/ia32/vsyscall.lds */
-
-#ifdef __ASSEMBLY__
-#define VSYSCALL32_BASE 0xffffe000
-#define VSYSCALL32_SYSEXIT (VSYSCALL32_BASE + 0x410)
-#else
-#define VSYSCALL32_BASE 0xffffe000UL
-#define VSYSCALL32_END (VSYSCALL32_BASE + PAGE_SIZE)
-#define VSYSCALL32_EHDR ((const struct elf32_hdr *) VSYSCALL32_BASE)
-
-#define VSYSCALL32_VSYSCALL ((void *)VSYSCALL32_BASE + 0x400) 
-#define VSYSCALL32_SYSEXIT ((void *)VSYSCALL32_BASE + 0x410)
-#define VSYSCALL32_SIGRETURN ((void __user *)VSYSCALL32_BASE + 0x500) 
-#define VSYSCALL32_RTSIGRETURN ((void __user *)VSYSCALL32_BASE + 0x600) 
-#endif
-
-#endif
-- 
cgit v1.2.3-59-g8ed1b


From 69d0627a7f6e891189124d784d2fa90cae7c449a Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:44 +0100
Subject: x86 vDSO: reorder vdso32 code

This reorders the code in the 32-bit vDSO images to put the signal
trampolines first and __kernel_vsyscall after them.  The order does
not matter to userland, it just uses what AT_SYSINFO or e_entry
says.  Since the signal trampolines are the same size in both
versions of the vDSO, putting them first is the simplest way to get
the addresses to line up.  This makes it work to use a more compact
layout for the vDSO.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/vdso/vdso32/int80.S     | 21 ++++++++++++---------
 arch/x86/vdso/vdso32/sigreturn.S | 20 +++++++++-----------
 arch/x86/vdso/vdso32/syscall.S   | 22 +++++++++++++++-------
 arch/x86/vdso/vdso32/sysenter.S  | 21 +++++++++++----------
 4 files changed, 47 insertions(+), 37 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/vdso/vdso32/int80.S b/arch/x86/vdso/vdso32/int80.S
index 3c8e4c62ace3..be4b7a9a7cdd 100644
--- a/arch/x86/vdso/vdso32/int80.S
+++ b/arch/x86/vdso/vdso32/int80.S
@@ -1,15 +1,15 @@
 /*
- * Code for the vsyscall page.  This version uses the old int $0x80 method.
+ * Code for the vDSO.  This version uses the old int $0x80 method.
  *
- * NOTE:
- * 1) __kernel_vsyscall _must_ be first in this page.
- * 2) there are alignment constraints on this stub, see vsyscall-sigreturn.S
- *    for details.
+ * First get the common code for the sigreturn entry points.
+ * This must come first.
  */
+#include "sigreturn.S"
 
 	.text
 	.globl __kernel_vsyscall
 	.type __kernel_vsyscall,@function
+	ALIGN
 __kernel_vsyscall:
 .LSTART_vsyscall:
 	int $0x80
@@ -47,7 +47,10 @@ __kernel_vsyscall:
 .LENDFDEDLSI:
 	.previous
 
-/*
- * Get the common code for the sigreturn entry points.
- */
-#include "sigreturn.S"
+	/*
+	 * Pad out the segment to match the size of the sysenter.S version.
+	 */
+VDSO32_vsyscall_eh_frame_size = 0x44
+	.section .data,"aw",@progbits
+	.space VDSO32_vsyscall_eh_frame_size-(.LENDFDEDLSI-.LSTARTFRAMEDLSI), 0
+	.previous
diff --git a/arch/x86/vdso/vdso32/sigreturn.S b/arch/x86/vdso/vdso32/sigreturn.S
index 8d65a0a0eb70..cade2752928b 100644
--- a/arch/x86/vdso/vdso32/sigreturn.S
+++ b/arch/x86/vdso/vdso32/sigreturn.S
@@ -1,11 +1,12 @@
 /*
- * Common code for the sigreturn entry points on the vsyscall page.
+ * Common code for the sigreturn entry points in vDSO images.
  * So far this code is the same for both int80 and sysenter versions.
- * This file is #include'd by vsyscall-*.S to define them after the
- * vsyscall entry point.  The kernel assumes that the addresses of these
- * routines are constant for all vsyscall implementations.
+ * This file is #include'd by int80.S et al to define them first thing.
+ * The kernel assumes that the addresses of these routines are constant
+ * for all vDSO implementations.
  */
 
+#include <linux/linkage.h>
 #include <asm/unistd_32.h>
 #include <asm/asm-offsets.h>
 
@@ -13,32 +14,29 @@
 #define	SYSCALL_ENTER_KERNEL	int $0x80
 #endif
 
-/* XXX
-   Should these be named "_sigtramp" or something?
-*/
-
 	.text
-	.org __kernel_vsyscall+32,0x90
 	.globl __kernel_sigreturn
 	.type __kernel_sigreturn,@function
+	ALIGN
 __kernel_sigreturn:
 .LSTART_sigreturn:
 	popl %eax		/* XXX does this mean it needs unwind info? */
 	movl $__NR_sigreturn, %eax
 	SYSCALL_ENTER_KERNEL
 .LEND_sigreturn:
+	nop
 	.size __kernel_sigreturn,.-.LSTART_sigreturn
 
-	.balign 32
 	.globl __kernel_rt_sigreturn
 	.type __kernel_rt_sigreturn,@function
+	ALIGN
 __kernel_rt_sigreturn:
 .LSTART_rt_sigreturn:
 	movl $__NR_rt_sigreturn, %eax
 	SYSCALL_ENTER_KERNEL
 .LEND_rt_sigreturn:
+	nop
 	.size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn
-	.balign 32
 	.previous
 
 	.section .eh_frame,"a",@progbits
diff --git a/arch/x86/vdso/vdso32/syscall.S b/arch/x86/vdso/vdso32/syscall.S
index 333bfb552c88..fe88d34f822f 100644
--- a/arch/x86/vdso/vdso32/syscall.S
+++ b/arch/x86/vdso/vdso32/syscall.S
@@ -1,13 +1,18 @@
 /*
- * Code for the vsyscall page.  This version uses the syscall instruction.
+ * Code for the vDSO.  This version uses the syscall instruction.
+ *
+ * First get the common code for the sigreturn entry points.
+ * This must come first.
  */
+#define SYSCALL_ENTER_KERNEL	syscall
+#include "sigreturn.S"
 
-#include <asm/asm-offsets.h>
 #include <asm/segment.h>
 
 	.text
 	.globl __kernel_vsyscall
 	.type __kernel_vsyscall,@function
+	ALIGN
 __kernel_vsyscall:
 .LSTART_vsyscall:
 	push	%ebp
@@ -61,9 +66,12 @@ __kernel_vsyscall:
 	.uleb128 4
 	.align 4
 .LENDFDE1:
+	.previous
 
-/*
- * Get the common code for the sigreturn entry points.
- */
-#define SYSCALL_ENTER_KERNEL	syscall
-#include "sigreturn.S"
+	/*
+	 * Pad out the segment to match the size of the sysenter.S version.
+	 */
+VDSO32_vsyscall_eh_frame_size = 0x44
+	.section .data,"aw",@progbits
+	.space VDSO32_vsyscall_eh_frame_size-(.LENDFDE1-.LSTARTFRAME), 0
+	.previous
diff --git a/arch/x86/vdso/vdso32/sysenter.S b/arch/x86/vdso/vdso32/sysenter.S
index 109bfa394eaa..902d5fc11f1b 100644
--- a/arch/x86/vdso/vdso32/sysenter.S
+++ b/arch/x86/vdso/vdso32/sysenter.S
@@ -1,11 +1,10 @@
 /*
- * Code for the vsyscall page.  This version uses the sysenter instruction.
+ * Code for the vDSO.  This version uses the sysenter instruction.
  *
- * NOTE:
- * 1) __kernel_vsyscall _must_ be first in this page.
- * 2) there are alignment constraints on this stub, see vsyscall-sigreturn.S
- *    for details.
+ * First get the common code for the sigreturn entry points.
+ * This must come first.
  */
+#include "sigreturn.S"
 
 /*
  * The caller puts arg2 in %ecx, which gets pushed. The kernel will use
@@ -23,11 +22,12 @@
  * arg6 from the stack.
  *
  * You can not use this vsyscall for the clone() syscall because the
- * three dwords on the parent stack do not get copied to the child.
+ * three words on the parent stack do not get copied to the child.
  */
 	.text
 	.globl __kernel_vsyscall
 	.type __kernel_vsyscall,@function
+	ALIGN
 __kernel_vsyscall:
 .LSTART_vsyscall:
 	push %ecx
@@ -115,7 +115,8 @@ VDSO32_SYSENTER_RETURN:	/* Symbol used by sysenter.c via vdso32-syms.h */
 .LENDFDEDLSI:
 	.previous
 
-/*
- * Get the common code for the sigreturn entry points.
- */
-#include "sigreturn.S"
+	/*
+	 * Emit a symbol with the size of this .eh_frame data,
+	 * to verify it matches the other versions.
+	 */
+VDSO32_vsyscall_eh_frame_size = (.LENDFDEDLSI-.LSTARTFRAMEDLSI)
-- 
cgit v1.2.3-59-g8ed1b


From 16e48e7e7929d841273d87027079660bca5e37bd Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:44 +0100
Subject: x86 vDSO: makefile cleanup

This cleans up the arch/x86/vdso/Makefile rules for vdso.so to
share more code with the vdso32-*.so rules and remove old cruft.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/vdso/Makefile | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index 47bc2760e6a8..58708f6c1329 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -23,25 +23,15 @@ $(obj)/vdso.o: $(obj)/vdso.so
 
 targets += vdso.so vdso.so.dbg vdso.lds $(vobjs-y)
 
-# The DSO images are built using a special linker script.
-quiet_cmd_syscall = SYSCALL $@
-      cmd_syscall = $(CC) -m elf_x86_64 -nostdlib $(SYSCFLAGS_$(@F)) \
-		          -Wl,-T,$(filter-out FORCE,$^) -o $@
-
 export CPPFLAGS_vdso.lds += -P -C
 
-vdso-flags = -fPIC -shared -Wl,-soname=linux-vdso.so.1 \
-		 $(call ld-option, -Wl$(comma)--hash-style=sysv) \
-		-Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096
-SYSCFLAGS_vdso.so = $(vdso-flags)
-SYSCFLAGS_vdso.so.dbg = $(vdso-flags)
+VDSO_LDFLAGS_vdso.lds = -m elf_x86_64 -Wl,-soname=linux-vdso.so.1 \
+		      	-Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096
 
 $(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so
 
-$(obj)/vdso.so: $(src)/vdso.lds $(vobjs) FORCE
-
 $(obj)/vdso.so.dbg: $(src)/vdso.lds $(vobjs) FORCE
-	$(call if_changed,syscall)
+	$(call if_changed,vdso)
 
 $(obj)/%.so: OBJCOPYFLAGS := -S
 $(obj)/%.so: $(obj)/%.so.dbg FORCE
@@ -49,8 +39,7 @@ $(obj)/%.so: $(obj)/%.so.dbg FORCE
 
 CFL := $(PROFILING) -mcmodel=small -fPIC -g0 -O2 -fasynchronous-unwind-tables -m64
 
-$(obj)/vclock_gettime.o: KBUILD_CFLAGS = $(CFL)
-$(obj)/vgetcpu.o: KBUILD_CFLAGS = $(CFL)
+$(vobjs): KBUILD_CFLAGS = $(CFL)
 
 targets += vdso-syms.lds
 obj-$(VDSO64-y)			+= vdso-syms.lds
-- 
cgit v1.2.3-59-g8ed1b


From cadd516422d9382313144aa58f9e46ee7a2c0a28 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:44 +0100
Subject: x86 vDSO: canonicalize sysenter .eh_frame

Some assembler versions automagically optimize .eh_frame contents,
changing their size.  The CFI in sysenter.S was not using optimal
formatting, so it would be changed by newer/smarter assemblers.
This ran afoul of the wired constant for padding out the other vDSO
images to match its size.  This changes the original hand-coded
source to use the optimal format encoding for its operations.  That
leaves nothing more for a fancy assembler to do, so the sizes will
match the wired-in expected size regardless of the assembler version.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/vdso/vdso32/int80.S    |  2 +-
 arch/x86/vdso/vdso32/syscall.S  |  2 +-
 arch/x86/vdso/vdso32/sysenter.S | 18 ++++++------------
 3 files changed, 8 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/vdso/vdso32/int80.S b/arch/x86/vdso/vdso32/int80.S
index be4b7a9a7cdd..b15b7c01aedb 100644
--- a/arch/x86/vdso/vdso32/int80.S
+++ b/arch/x86/vdso/vdso32/int80.S
@@ -50,7 +50,7 @@ __kernel_vsyscall:
 	/*
 	 * Pad out the segment to match the size of the sysenter.S version.
 	 */
-VDSO32_vsyscall_eh_frame_size = 0x44
+VDSO32_vsyscall_eh_frame_size = 0x40
 	.section .data,"aw",@progbits
 	.space VDSO32_vsyscall_eh_frame_size-(.LENDFDEDLSI-.LSTARTFRAMEDLSI), 0
 	.previous
diff --git a/arch/x86/vdso/vdso32/syscall.S b/arch/x86/vdso/vdso32/syscall.S
index fe88d34f822f..5415b5613d55 100644
--- a/arch/x86/vdso/vdso32/syscall.S
+++ b/arch/x86/vdso/vdso32/syscall.S
@@ -71,7 +71,7 @@ __kernel_vsyscall:
 	/*
 	 * Pad out the segment to match the size of the sysenter.S version.
 	 */
-VDSO32_vsyscall_eh_frame_size = 0x44
+VDSO32_vsyscall_eh_frame_size = 0x40
 	.section .data,"aw",@progbits
 	.space VDSO32_vsyscall_eh_frame_size-(.LENDFDE1-.LSTARTFRAME), 0
 	.previous
diff --git a/arch/x86/vdso/vdso32/sysenter.S b/arch/x86/vdso/vdso32/sysenter.S
index 902d5fc11f1b..e2800affa754 100644
--- a/arch/x86/vdso/vdso32/sysenter.S
+++ b/arch/x86/vdso/vdso32/sysenter.S
@@ -84,31 +84,25 @@ VDSO32_SYSENTER_RETURN:	/* Symbol used by sysenter.c via vdso32-syms.h */
 	.uleb128 0
 	/* What follows are the instructions for the table generation.
 	   We have to record all changes of the stack pointer.  */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpush_ecx-.LSTART_vsyscall
+	.byte 0x40 + (.Lpush_ecx-.LSTART_vsyscall) /* DW_CFA_advance_loc */
 	.byte 0x0e		/* DW_CFA_def_cfa_offset */
 	.byte 0x08		/* RA at offset 8 now */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpush_edx-.Lpush_ecx
+	.byte 0x40 + (.Lpush_edx-.Lpush_ecx) /* DW_CFA_advance_loc */
 	.byte 0x0e		/* DW_CFA_def_cfa_offset */
 	.byte 0x0c		/* RA at offset 12 now */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lenter_kernel-.Lpush_edx
+	.byte 0x40 + (.Lenter_kernel-.Lpush_edx) /* DW_CFA_advance_loc */
 	.byte 0x0e		/* DW_CFA_def_cfa_offset */
 	.byte 0x10		/* RA at offset 16 now */
 	.byte 0x85, 0x04	/* DW_CFA_offset %ebp -16 */
 	/* Finally the epilogue.  */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpop_ebp-.Lenter_kernel
+	.byte 0x40 + (.Lpop_ebp-.Lenter_kernel)	/* DW_CFA_advance_loc */
 	.byte 0x0e		/* DW_CFA_def_cfa_offset */
 	.byte 0x0c		/* RA at offset 12 now */
 	.byte 0xc5		/* DW_CFA_restore %ebp */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpop_edx-.Lpop_ebp
+	.byte 0x40 + (.Lpop_edx-.Lpop_ebp) /* DW_CFA_advance_loc */
 	.byte 0x0e		/* DW_CFA_def_cfa_offset */
 	.byte 0x08		/* RA at offset 8 now */
-	.byte 0x04		/* DW_CFA_advance_loc4 */
-	.long .Lpop_ecx-.Lpop_edx
+	.byte 0x40 + (.Lpop_ecx-.Lpop_edx) /* DW_CFA_advance_loc */
 	.byte 0x0e		/* DW_CFA_def_cfa_offset */
 	.byte 0x04		/* RA at offset 4 now */
 	.align 4
-- 
cgit v1.2.3-59-g8ed1b


From 91394eb0975b3771dde7071a0825c6df6c20ff8a Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:45 +0100
Subject: x86: use get_desc_base

This changes a couple of places to use the get_desc_base function.
They were duplicating the same calculation with different equivalent code.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/tls32.c        | 7 +------
 arch/x86/kernel/process_64.c | 6 +-----
 2 files changed, 2 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/tls32.c b/arch/x86/ia32/tls32.c
index 1cc4340de3ca..cac4b26b5895 100644
--- a/arch/x86/ia32/tls32.c
+++ b/arch/x86/ia32/tls32.c
@@ -85,11 +85,6 @@ asmlinkage long sys32_set_thread_area(struct user_desc __user *u_info)
  * Get the current Thread-Local Storage area:
  */
 
-#define GET_BASE(desc) ( \
-	(((desc)->a >> 16) & 0x0000ffff) | \
-	(((desc)->b << 16) & 0x00ff0000) | \
-	( (desc)->b        & 0xff000000)   )
-
 #define GET_LIMIT(desc) ( \
 	((desc)->a & 0x0ffff) | \
 	 ((desc)->b & 0xf0000) )
@@ -117,7 +112,7 @@ int do_get_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
 
 	memset(&info, 0, sizeof(struct user_desc));
 	info.entry_number = idx;
-	info.base_addr = GET_BASE(desc);
+	info.base_addr = get_desc_base(desc);
 	info.limit = GET_LIMIT(desc);
 	info.seg_32bit = GET_32BIT(desc);
 	info.contents = GET_CONTENTS(desc);
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index aa9414ed74c7..9ea1d7546f80 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -464,11 +464,7 @@ static inline void set_32bit_tls(struct task_struct *t, int tls, u32 addr)
 
 static inline u32 read_32bit_tls(struct task_struct *t, int tls)
 {
-	struct desc_struct *desc = (void *)t->thread.tls_array;
-	desc += tls;
-	return desc->base0 | 
-		(((u32)desc->base1) << 16) | 
-		(((u32)desc->base2) << 24);
+	return get_desc_base(&t->thread.tls_array[tls]);
 }
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From df5d438e33d7fc914ba9b6e0d6b019a8966c5fcc Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:45 +0100
Subject: x86: ptrace fs/gs_base

The fs_base and gs_base fields are available in user_regs_struct.
But reading these via ptrace (PTRACE_GETREGS or PTRACE_PEEKUSR) does
not give a reliably useful value.  The thread_struct fields are 0
when do_arch_prctl decided to use a GDT slot instead of MSR_FS_BASE,
which it does for a value under 1<<32.

This changes ptrace access to fs_base and gs_base to work like
PTRACE_ARCH_PRCTL does.  That is, it reads the base address that
user-mode memory access using the fs/gs instruction prefixes will
use, regardless of how it's being implemented in the kernel.  The
MSR vs GDT is an implementation detail that is pretty much hidden
from userland in the actual using, and there is no reason that
ptrace should give the internal implementation picture rather than
the user-mode semantic picture.  In the case of setting the value,
this can implicitly change the fsindex/gsindex value (also
separately in user_regs_struct), which is what happens when the
thread calls arch_prctl itself.  In a PTRACE_SETREGS, the fs_base
change will come after the fsindex change due to the order of the
struct, and so a change the debugger made to fs_base will have the
effect intended, another part of the user_regs_struct will now
differ when read back from what the debugger wrote.

This makes PTRACE_ARCH_PRCTL obsolete.  We could consider declaring
it deprecated and removing it one day, though there is no hurry.
For the foreseeable future, debuggers have to assume an old kernel
that does not report reliable fs_base/gs_base values in user_regs_struct
and stick to PTRACE_ARCH_PRCTL anyway.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_64.c | 35 +++++++++++++++++++++++++++++++----
 1 file changed, 31 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index 607085f3f08a..1edece36044c 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -22,6 +22,7 @@
 #include <asm/pgtable.h>
 #include <asm/system.h>
 #include <asm/processor.h>
+#include <asm/prctl.h>
 #include <asm/i387.h>
 #include <asm/debugreg.h>
 #include <asm/ldt.h>
@@ -260,12 +261,22 @@ static int putreg(struct task_struct *child,
 		case offsetof(struct user_regs_struct,fs_base):
 			if (value >= TASK_SIZE_OF(child))
 				return -EIO;
-			child->thread.fs = value;
+			/*
+			 * When changing the segment base, use do_arch_prctl
+			 * to set either thread.fs or thread.fsindex and the
+			 * corresponding GDT slot.
+			 */
+			if (child->thread.fs != value)
+				return do_arch_prctl(child, ARCH_SET_FS, value);
 			return 0;
 		case offsetof(struct user_regs_struct,gs_base):
+			/*
+			 * Exactly the same here as the %fs handling above.
+			 */
 			if (value >= TASK_SIZE_OF(child))
 				return -EIO;
-			child->thread.gs = value;
+			if (child->thread.gs != value)
+				return do_arch_prctl(child, ARCH_SET_GS, value);
 			return 0;
 		case offsetof(struct user_regs_struct, eflags):
 			value &= FLAG_MASK;
@@ -296,9 +307,25 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 		case offsetof(struct user_regs_struct, es):
 			return child->thread.es; 
 		case offsetof(struct user_regs_struct, fs_base):
-			return child->thread.fs;
+			/*
+			 * do_arch_prctl may have used a GDT slot instead of
+			 * the MSR.  To userland, it appears the same either
+			 * way, except the %fs segment selector might not be 0.
+			 */
+			if (child->thread.fs != 0)
+				return child->thread.fs;
+			if (child->thread.fsindex != FS_TLS_SEL)
+				return 0;
+			return get_desc_base(&child->thread.tls_array[FS_TLS]);
 		case offsetof(struct user_regs_struct, gs_base):
-			return child->thread.gs;
+			/*
+			 * Exactly the same here as the %fs handling above.
+			 */
+			if (child->thread.gs != 0)
+				return child->thread.gs;
+			if (child->thread.gsindex != GS_TLS_SEL)
+				return 0;
+			return get_desc_base(&child->thread.tls_array[GS_TLS]);
 		default:
 			regno = regno - sizeof(struct pt_regs);
 			val = get_stack_long(child, regno);
-- 
cgit v1.2.3-59-g8ed1b


From 13abd0e50433092c41551bc13c32268028b6d663 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:45 +0100
Subject: x86: tls32 moved

This renames arch/x86/ia32/tls32.c to arch/x86/kernel/tls.c, which does
nothing now but paves the way to consolidate this code for 32-bit too.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Zachary Amsden <zach@vmware.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/Makefile      |   2 +-
 arch/x86/ia32/tls32.c       | 158 --------------------------------------------
 arch/x86/kernel/Makefile_64 |   1 +
 arch/x86/kernel/tls.c       | 158 ++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 160 insertions(+), 159 deletions(-)
 delete mode 100644 arch/x86/ia32/tls32.c
 create mode 100644 arch/x86/kernel/tls.c

(limited to 'arch')

diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index 8c19b763b2fb..ea6088640847 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the ia32 kernel emulation subsystem.
 #
 
-obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o tls32.o \
+obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o \
 	ia32_binfmt.o fpu32.o ptrace32.o
 
 sysv-$(CONFIG_SYSVIPC) := ipc32.o
diff --git a/arch/x86/ia32/tls32.c b/arch/x86/ia32/tls32.c
deleted file mode 100644
index cac4b26b5895..000000000000
--- a/arch/x86/ia32/tls32.c
+++ /dev/null
@@ -1,158 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/user.h>
-
-#include <asm/uaccess.h>
-#include <asm/desc.h>
-#include <asm/system.h>
-#include <asm/ldt.h>
-#include <asm/processor.h>
-#include <asm/proto.h>
-
-/*
- * sys_alloc_thread_area: get a yet unused TLS descriptor index.
- */
-static int get_free_idx(void)
-{
-	struct thread_struct *t = &current->thread;
-	int idx;
-
-	for (idx = 0; idx < GDT_ENTRY_TLS_ENTRIES; idx++)
-		if (desc_empty((struct n_desc_struct *)(t->tls_array) + idx))
-			return idx + GDT_ENTRY_TLS_MIN;
-	return -ESRCH;
-}
-
-/*
- * Set a given TLS descriptor:
- * When you want addresses > 32bit use arch_prctl() 
- */
-int do_set_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
-{
-	struct user_desc info;
-	struct n_desc_struct *desc;
-	int cpu, idx;
-
-	if (copy_from_user(&info, u_info, sizeof(info)))
-		return -EFAULT;
-
-	idx = info.entry_number;
-
-	/*
-	 * index -1 means the kernel should try to find and
-	 * allocate an empty descriptor:
-	 */
-	if (idx == -1) {
-		idx = get_free_idx();
-		if (idx < 0)
-			return idx;
-		if (put_user(idx, &u_info->entry_number))
-			return -EFAULT;
-	}
-
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	desc = ((struct n_desc_struct *)t->tls_array) + idx - GDT_ENTRY_TLS_MIN;
-
-	/*
-	 * We must not get preempted while modifying the TLS.
-	 */
-	cpu = get_cpu();
-
-	if (LDT_empty(&info)) {
-		desc->a = 0;
-		desc->b = 0;
-	} else {
-		desc->a = LDT_entry_a(&info);
-		desc->b = LDT_entry_b(&info);
-	}
-	if (t == &current->thread)
-		load_TLS(t, cpu);
-
-	put_cpu();
-	return 0;
-}
-
-asmlinkage long sys32_set_thread_area(struct user_desc __user *u_info)
-{ 
-	return do_set_thread_area(&current->thread, u_info); 
-} 
-
-
-/*
- * Get the current Thread-Local Storage area:
- */
-
-#define GET_LIMIT(desc) ( \
-	((desc)->a & 0x0ffff) | \
-	 ((desc)->b & 0xf0000) )
-	
-#define GET_32BIT(desc)		(((desc)->b >> 22) & 1)
-#define GET_CONTENTS(desc)	(((desc)->b >> 10) & 3)
-#define GET_WRITABLE(desc)	(((desc)->b >>  9) & 1)
-#define GET_LIMIT_PAGES(desc)	(((desc)->b >> 23) & 1)
-#define GET_PRESENT(desc)	(((desc)->b >> 15) & 1)
-#define GET_USEABLE(desc)	(((desc)->b >> 20) & 1)
-#define GET_LONGMODE(desc)	(((desc)->b >> 21) & 1)
-
-int do_get_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
-{
-	struct user_desc info;
-	struct n_desc_struct *desc;
-	int idx;
-
-	if (get_user(idx, &u_info->entry_number))
-		return -EFAULT;
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	desc = ((struct n_desc_struct *)t->tls_array) + idx - GDT_ENTRY_TLS_MIN;
-
-	memset(&info, 0, sizeof(struct user_desc));
-	info.entry_number = idx;
-	info.base_addr = get_desc_base(desc);
-	info.limit = GET_LIMIT(desc);
-	info.seg_32bit = GET_32BIT(desc);
-	info.contents = GET_CONTENTS(desc);
-	info.read_exec_only = !GET_WRITABLE(desc);
-	info.limit_in_pages = GET_LIMIT_PAGES(desc);
-	info.seg_not_present = !GET_PRESENT(desc);
-	info.useable = GET_USEABLE(desc);
-	info.lm = GET_LONGMODE(desc);
-
-	if (copy_to_user(u_info, &info, sizeof(info)))
-		return -EFAULT;
-	return 0;
-}
-
-asmlinkage long sys32_get_thread_area(struct user_desc __user *u_info)
-{
-	return do_get_thread_area(&current->thread, u_info);
-} 
-
-
-int ia32_child_tls(struct task_struct *p, struct pt_regs *childregs)
-{
-	struct n_desc_struct *desc;
-	struct user_desc info;
-	struct user_desc __user *cp;
-	int idx;
-	
-	cp = (void __user *)childregs->rsi;
-	if (copy_from_user(&info, cp, sizeof(info)))
-		return -EFAULT;
-	if (LDT_empty(&info))
-		return -EINVAL;
-	
-	idx = info.entry_number;
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-	
-	desc = (struct n_desc_struct *)(p->thread.tls_array) + idx - GDT_ENTRY_TLS_MIN;
-	desc->a = LDT_entry_a(&info);
-	desc->b = LDT_entry_b(&info);
-
-	return 0;
-}
diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index ae95d21ea885..e1ba82e582a8 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -13,6 +13,7 @@ obj-y	:= process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
 		pci-dma_64.o pci-nommu_64.o alternative.o hpet.o tsc_64.o bugs_64.o \
 		i8253.o io_delay.o rtc.o
 
+obj-$(CONFIG_IA32_EMULATION)	+= tls.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-y				+= cpu/
 obj-y				+= acpi/
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
new file mode 100644
index 000000000000..5291596f19b0
--- /dev/null
+++ b/arch/x86/kernel/tls.c
@@ -0,0 +1,158 @@
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/user.h>
+
+#include <asm/uaccess.h>
+#include <asm/desc.h>
+#include <asm/system.h>
+#include <asm/ldt.h>
+#include <asm/processor.h>
+#include <asm/proto.h>
+
+/*
+ * sys_alloc_thread_area: get a yet unused TLS descriptor index.
+ */
+static int get_free_idx(void)
+{
+	struct thread_struct *t = &current->thread;
+	int idx;
+
+	for (idx = 0; idx < GDT_ENTRY_TLS_ENTRIES; idx++)
+		if (desc_empty((struct n_desc_struct *)(t->tls_array) + idx))
+			return idx + GDT_ENTRY_TLS_MIN;
+	return -ESRCH;
+}
+
+/*
+ * Set a given TLS descriptor:
+ * When you want addresses > 32bit use arch_prctl()
+ */
+int do_set_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
+{
+	struct user_desc info;
+	struct n_desc_struct *desc;
+	int cpu, idx;
+
+	if (copy_from_user(&info, u_info, sizeof(info)))
+		return -EFAULT;
+
+	idx = info.entry_number;
+
+	/*
+	 * index -1 means the kernel should try to find and
+	 * allocate an empty descriptor:
+	 */
+	if (idx == -1) {
+		idx = get_free_idx();
+		if (idx < 0)
+			return idx;
+		if (put_user(idx, &u_info->entry_number))
+			return -EFAULT;
+	}
+
+	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
+		return -EINVAL;
+
+	desc = ((struct n_desc_struct *)t->tls_array) + idx - GDT_ENTRY_TLS_MIN;
+
+	/*
+	 * We must not get preempted while modifying the TLS.
+	 */
+	cpu = get_cpu();
+
+	if (LDT_empty(&info)) {
+		desc->a = 0;
+		desc->b = 0;
+	} else {
+		desc->a = LDT_entry_a(&info);
+		desc->b = LDT_entry_b(&info);
+	}
+	if (t == &current->thread)
+		load_TLS(t, cpu);
+
+	put_cpu();
+	return 0;
+}
+
+asmlinkage long sys32_set_thread_area(struct user_desc __user *u_info)
+{
+	return do_set_thread_area(&current->thread, u_info);
+}
+
+
+/*
+ * Get the current Thread-Local Storage area:
+ */
+
+#define GET_LIMIT(desc) ( \
+	((desc)->a & 0x0ffff) | \
+	 ((desc)->b & 0xf0000) )
+
+#define GET_32BIT(desc)		(((desc)->b >> 22) & 1)
+#define GET_CONTENTS(desc)	(((desc)->b >> 10) & 3)
+#define GET_WRITABLE(desc)	(((desc)->b >>  9) & 1)
+#define GET_LIMIT_PAGES(desc)	(((desc)->b >> 23) & 1)
+#define GET_PRESENT(desc)	(((desc)->b >> 15) & 1)
+#define GET_USEABLE(desc)	(((desc)->b >> 20) & 1)
+#define GET_LONGMODE(desc)	(((desc)->b >> 21) & 1)
+
+int do_get_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
+{
+	struct user_desc info;
+	struct n_desc_struct *desc;
+	int idx;
+
+	if (get_user(idx, &u_info->entry_number))
+		return -EFAULT;
+	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
+		return -EINVAL;
+
+	desc = ((struct n_desc_struct *)t->tls_array) + idx - GDT_ENTRY_TLS_MIN;
+
+	memset(&info, 0, sizeof(struct user_desc));
+	info.entry_number = idx;
+	info.base_addr = get_desc_base(desc);
+	info.limit = GET_LIMIT(desc);
+	info.seg_32bit = GET_32BIT(desc);
+	info.contents = GET_CONTENTS(desc);
+	info.read_exec_only = !GET_WRITABLE(desc);
+	info.limit_in_pages = GET_LIMIT_PAGES(desc);
+	info.seg_not_present = !GET_PRESENT(desc);
+	info.useable = GET_USEABLE(desc);
+	info.lm = GET_LONGMODE(desc);
+
+	if (copy_to_user(u_info, &info, sizeof(info)))
+		return -EFAULT;
+	return 0;
+}
+
+asmlinkage long sys32_get_thread_area(struct user_desc __user *u_info)
+{
+	return do_get_thread_area(&current->thread, u_info);
+}
+
+
+int ia32_child_tls(struct task_struct *p, struct pt_regs *childregs)
+{
+	struct n_desc_struct *desc;
+	struct user_desc info;
+	struct user_desc __user *cp;
+	int idx;
+
+	cp = (void __user *)childregs->rsi;
+	if (copy_from_user(&info, cp, sizeof(info)))
+		return -EFAULT;
+	if (LDT_empty(&info))
+		return -EINVAL;
+
+	idx = info.entry_number;
+	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
+		return -EINVAL;
+
+	desc = (struct n_desc_struct *)(p->thread.tls_array) + idx - GDT_ENTRY_TLS_MIN;
+	desc->a = LDT_entry_a(&info);
+	desc->b = LDT_entry_b(&info);
+
+	return 0;
+}
-- 
cgit v1.2.3-59-g8ed1b


From efd1ca52d04d2f6df337a3332cee56cd60e6d4c4 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:46 +0100
Subject: x86: TLS cleanup

This consolidates the four different places that implemented the same
encoding magic for the GDT-slot 32-bit TLS support.  The old tls32.c was
renamed and is now only slightly modified to be the shared implementation.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Zachary Amsden <zach@vmware.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ia32entry.S    |   4 +-
 arch/x86/kernel/Makefile_32  |   1 +
 arch/x86/kernel/process_32.c | 141 ++-----------------------------------------
 arch/x86/kernel/process_64.c |   3 +-
 arch/x86/kernel/ptrace_32.c  |  91 +++-------------------------
 arch/x86/kernel/ptrace_64.c  |  26 ++++----
 arch/x86/kernel/tls.c        |  96 ++++++++++++-----------------
 include/asm-x86/ia32.h       |   6 --
 include/asm-x86/ptrace.h     |  11 ++++
 9 files changed, 77 insertions(+), 302 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 2499a324feaa..0db0a6291bbd 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -643,8 +643,8 @@ ia32_sys_call_table:
 	.quad compat_sys_futex		/* 240 */
 	.quad compat_sys_sched_setaffinity
 	.quad compat_sys_sched_getaffinity
-	.quad sys32_set_thread_area
-	.quad sys32_get_thread_area
+	.quad sys_set_thread_area
+	.quad sys_get_thread_area
 	.quad compat_sys_io_setup	/* 245 */
 	.quad sys_io_destroy
 	.quad compat_sys_io_getevents
diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index 2c9596b9349c..9a6577a746ba 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -10,6 +10,7 @@ obj-y	:= process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
 		pci-dma_32.o i386_ksyms_32.o i387_32.o bootflag.o e820_32.o\
 		quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o io_delay.o rtc.o
 
+obj-y				+= tls.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-y				+= cpu/
 obj-y				+= acpi/
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 631af167bc51..4d66a56280d3 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -501,32 +501,15 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
 		set_tsk_thread_flag(p, TIF_IO_BITMAP);
 	}
 
+	err = 0;
+
 	/*
 	 * Set a new TLS for the child thread?
 	 */
-	if (clone_flags & CLONE_SETTLS) {
-		struct desc_struct *desc;
-		struct user_desc info;
-		int idx;
-
-		err = -EFAULT;
-		if (copy_from_user(&info, (void __user *)childregs->esi, sizeof(info)))
-			goto out;
-		err = -EINVAL;
-		if (LDT_empty(&info))
-			goto out;
-
-		idx = info.entry_number;
-		if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-			goto out;
-
-		desc = p->thread.tls_array + idx - GDT_ENTRY_TLS_MIN;
-		desc->a = LDT_entry_a(&info);
-		desc->b = LDT_entry_b(&info);
-	}
+	if (clone_flags & CLONE_SETTLS)
+		err = do_set_thread_area(p, -1,
+			(struct user_desc __user *)childregs->esi, 0);
 
-	err = 0;
- out:
 	if (err && p->thread.io_bitmap_ptr) {
 		kfree(p->thread.io_bitmap_ptr);
 		p->thread.io_bitmap_max = 0;
@@ -872,120 +855,6 @@ unsigned long get_wchan(struct task_struct *p)
 	return 0;
 }
 
-/*
- * sys_alloc_thread_area: get a yet unused TLS descriptor index.
- */
-static int get_free_idx(void)
-{
-	struct thread_struct *t = &current->thread;
-	int idx;
-
-	for (idx = 0; idx < GDT_ENTRY_TLS_ENTRIES; idx++)
-		if (desc_empty(t->tls_array + idx))
-			return idx + GDT_ENTRY_TLS_MIN;
-	return -ESRCH;
-}
-
-/*
- * Set a given TLS descriptor:
- */
-asmlinkage int sys_set_thread_area(struct user_desc __user *u_info)
-{
-	struct thread_struct *t = &current->thread;
-	struct user_desc info;
-	struct desc_struct *desc;
-	int cpu, idx;
-
-	if (copy_from_user(&info, u_info, sizeof(info)))
-		return -EFAULT;
-	idx = info.entry_number;
-
-	/*
-	 * index -1 means the kernel should try to find and
-	 * allocate an empty descriptor:
-	 */
-	if (idx == -1) {
-		idx = get_free_idx();
-		if (idx < 0)
-			return idx;
-		if (put_user(idx, &u_info->entry_number))
-			return -EFAULT;
-	}
-
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	desc = t->tls_array + idx - GDT_ENTRY_TLS_MIN;
-
-	/*
-	 * We must not get preempted while modifying the TLS.
-	 */
-	cpu = get_cpu();
-
-	if (LDT_empty(&info)) {
-		desc->a = 0;
-		desc->b = 0;
-	} else {
-		desc->a = LDT_entry_a(&info);
-		desc->b = LDT_entry_b(&info);
-	}
-	load_TLS(t, cpu);
-
-	put_cpu();
-
-	return 0;
-}
-
-/*
- * Get the current Thread-Local Storage area:
- */
-
-#define GET_BASE(desc) ( \
-	(((desc)->a >> 16) & 0x0000ffff) | \
-	(((desc)->b << 16) & 0x00ff0000) | \
-	( (desc)->b        & 0xff000000)   )
-
-#define GET_LIMIT(desc) ( \
-	((desc)->a & 0x0ffff) | \
-	 ((desc)->b & 0xf0000) )
-	
-#define GET_32BIT(desc)		(((desc)->b >> 22) & 1)
-#define GET_CONTENTS(desc)	(((desc)->b >> 10) & 3)
-#define GET_WRITABLE(desc)	(((desc)->b >>  9) & 1)
-#define GET_LIMIT_PAGES(desc)	(((desc)->b >> 23) & 1)
-#define GET_PRESENT(desc)	(((desc)->b >> 15) & 1)
-#define GET_USEABLE(desc)	(((desc)->b >> 20) & 1)
-
-asmlinkage int sys_get_thread_area(struct user_desc __user *u_info)
-{
-	struct user_desc info;
-	struct desc_struct *desc;
-	int idx;
-
-	if (get_user(idx, &u_info->entry_number))
-		return -EFAULT;
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	memset(&info, 0, sizeof(info));
-
-	desc = current->thread.tls_array + idx - GDT_ENTRY_TLS_MIN;
-
-	info.entry_number = idx;
-	info.base_addr = GET_BASE(desc);
-	info.limit = GET_LIMIT(desc);
-	info.seg_32bit = GET_32BIT(desc);
-	info.contents = GET_CONTENTS(desc);
-	info.read_exec_only = !GET_WRITABLE(desc);
-	info.limit_in_pages = GET_LIMIT_PAGES(desc);
-	info.seg_not_present = !GET_PRESENT(desc);
-	info.useable = GET_USEABLE(desc);
-
-	if (copy_to_user(u_info, &info, sizeof(info)))
-		return -EFAULT;
-	return 0;
-}
-
 unsigned long arch_align_stack(unsigned long sp)
 {
 	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 9ea1d7546f80..ccc9d68d5a58 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -524,7 +524,8 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp,
 	if (clone_flags & CLONE_SETTLS) {
 #ifdef CONFIG_IA32_EMULATION
 		if (test_thread_flag(TIF_IA32))
-			err = ia32_child_tls(p, childregs); 
+			err = do_set_thread_area(p, -1,
+				(struct user_desc __user *)childregs->rsi, 0);
 		else 			
 #endif	 
 			err = do_arch_prctl(p, ARCH_SET_FS, childregs->r8); 
diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index ff5431cc03ee..09227cfb7c4c 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -276,85 +276,6 @@ void ptrace_disable(struct task_struct *child)
 	clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
 }
 
-/*
- * Perform get_thread_area on behalf of the traced child.
- */
-static int
-ptrace_get_thread_area(struct task_struct *child,
-		       int idx, struct user_desc __user *user_desc)
-{
-	struct user_desc info;
-	struct desc_struct *desc;
-
-/*
- * Get the current Thread-Local Storage area:
- */
-
-#define GET_BASE(desc) ( \
-	(((desc)->a >> 16) & 0x0000ffff) | \
-	(((desc)->b << 16) & 0x00ff0000) | \
-	( (desc)->b        & 0xff000000)   )
-
-#define GET_LIMIT(desc) ( \
-	((desc)->a & 0x0ffff) | \
-	 ((desc)->b & 0xf0000) )
-
-#define GET_32BIT(desc)		(((desc)->b >> 22) & 1)
-#define GET_CONTENTS(desc)	(((desc)->b >> 10) & 3)
-#define GET_WRITABLE(desc)	(((desc)->b >>  9) & 1)
-#define GET_LIMIT_PAGES(desc)	(((desc)->b >> 23) & 1)
-#define GET_PRESENT(desc)	(((desc)->b >> 15) & 1)
-#define GET_USEABLE(desc)	(((desc)->b >> 20) & 1)
-
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	desc = child->thread.tls_array + idx - GDT_ENTRY_TLS_MIN;
-
-	info.entry_number = idx;
-	info.base_addr = GET_BASE(desc);
-	info.limit = GET_LIMIT(desc);
-	info.seg_32bit = GET_32BIT(desc);
-	info.contents = GET_CONTENTS(desc);
-	info.read_exec_only = !GET_WRITABLE(desc);
-	info.limit_in_pages = GET_LIMIT_PAGES(desc);
-	info.seg_not_present = !GET_PRESENT(desc);
-	info.useable = GET_USEABLE(desc);
-
-	if (copy_to_user(user_desc, &info, sizeof(info)))
-		return -EFAULT;
-
-	return 0;
-}
-
-/*
- * Perform set_thread_area on behalf of the traced child.
- */
-static int
-ptrace_set_thread_area(struct task_struct *child,
-		       int idx, struct user_desc __user *user_desc)
-{
-	struct user_desc info;
-	struct desc_struct *desc;
-
-	if (copy_from_user(&info, user_desc, sizeof(info)))
-		return -EFAULT;
-
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	desc = child->thread.tls_array + idx - GDT_ENTRY_TLS_MIN;
-	if (LDT_empty(&info)) {
-		desc->a = 0;
-		desc->b = 0;
-	} else {
-		desc->a = LDT_entry_a(&info);
-		desc->b = LDT_entry_b(&info);
-	}
-
-	return 0;
-}
-
 long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
 	struct user * dummy = NULL;
@@ -601,13 +522,17 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	}
 
 	case PTRACE_GET_THREAD_AREA:
-		ret = ptrace_get_thread_area(child, addr,
-					(struct user_desc __user *) data);
+		if (addr < 0)
+			return -EIO;
+		ret = do_get_thread_area(child, addr,
+					 (struct user_desc __user *) data);
 		break;
 
 	case PTRACE_SET_THREAD_AREA:
-		ret = ptrace_set_thread_area(child, addr,
-					(struct user_desc __user *) data);
+		if (addr < 0)
+			return -EIO;
+		ret = do_set_thread_area(child, addr,
+					 (struct user_desc __user *) data, 0);
 		break;
 
 	default:
diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index 1edece36044c..375fadc23a25 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -474,23 +474,19 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		   64bit debugger to fully examine them too. Better
 		   don't use it against 64bit processes, use
 		   PTRACE_ARCH_PRCTL instead. */
-	case PTRACE_SET_THREAD_AREA: {
-		struct user_desc __user *p;
-		int old; 
-		p = (struct user_desc __user *)data;
-		get_user(old,  &p->entry_number); 
-		put_user(addr, &p->entry_number);
-		ret = do_set_thread_area(&child->thread, p);
-		put_user(old,  &p->entry_number); 
-		break;
 	case PTRACE_GET_THREAD_AREA:
-		p = (struct user_desc __user *)data;
-		get_user(old,  &p->entry_number); 
-		put_user(addr, &p->entry_number);
-		ret = do_get_thread_area(&child->thread, p);
-		put_user(old,  &p->entry_number); 
+		if (addr < 0)
+			return -EIO;
+		ret = do_get_thread_area(child, addr,
+					 (struct user_desc __user *) data);
+
+		break;
+	case PTRACE_SET_THREAD_AREA:
+		if (addr < 0)
+			return -EIO;
+		ret = do_set_thread_area(child, addr,
+					 (struct user_desc __user *) data, 0);
 		break;
-	} 
 #endif
 		/* normal 64bit interface to access TLS data. 
 		   Works just like arch_prctl, except that the arguments
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index 5291596f19b0..67a377621b12 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -19,31 +19,34 @@ static int get_free_idx(void)
 	int idx;
 
 	for (idx = 0; idx < GDT_ENTRY_TLS_ENTRIES; idx++)
-		if (desc_empty((struct n_desc_struct *)(t->tls_array) + idx))
+		if (desc_empty(&t->tls_array[idx]))
 			return idx + GDT_ENTRY_TLS_MIN;
 	return -ESRCH;
 }
 
 /*
  * Set a given TLS descriptor:
- * When you want addresses > 32bit use arch_prctl()
  */
-int do_set_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
+int do_set_thread_area(struct task_struct *p, int idx,
+		       struct user_desc __user *u_info,
+		       int can_allocate)
 {
+	struct thread_struct *t = &p->thread;
 	struct user_desc info;
-	struct n_desc_struct *desc;
-	int cpu, idx;
+	u32 *desc;
+	int cpu;
 
 	if (copy_from_user(&info, u_info, sizeof(info)))
 		return -EFAULT;
 
-	idx = info.entry_number;
+	if (idx == -1)
+		idx = info.entry_number;
 
 	/*
 	 * index -1 means the kernel should try to find and
 	 * allocate an empty descriptor:
 	 */
-	if (idx == -1) {
+	if (idx == -1 && can_allocate) {
 		idx = get_free_idx();
 		if (idx < 0)
 			return idx;
@@ -54,7 +57,7 @@ int do_set_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
 	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
 		return -EINVAL;
 
-	desc = ((struct n_desc_struct *)t->tls_array) + idx - GDT_ENTRY_TLS_MIN;
+	desc = (u32 *) &t->tls_array[idx - GDT_ENTRY_TLS_MIN];
 
 	/*
 	 * We must not get preempted while modifying the TLS.
@@ -62,11 +65,11 @@ int do_set_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
 	cpu = get_cpu();
 
 	if (LDT_empty(&info)) {
-		desc->a = 0;
-		desc->b = 0;
+		desc[0] = 0;
+		desc[1] = 0;
 	} else {
-		desc->a = LDT_entry_a(&info);
-		desc->b = LDT_entry_b(&info);
+		desc[0] = LDT_entry_a(&info);
+		desc[1] = LDT_entry_b(&info);
 	}
 	if (t == &current->thread)
 		load_TLS(t, cpu);
@@ -75,9 +78,9 @@ int do_set_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
 	return 0;
 }
 
-asmlinkage long sys32_set_thread_area(struct user_desc __user *u_info)
+asmlinkage int sys_set_thread_area(struct user_desc __user *u_info)
 {
-	return do_set_thread_area(&current->thread, u_info);
+	return do_set_thread_area(current, -1, u_info, 1);
 }
 
 
@@ -85,34 +88,32 @@ asmlinkage long sys32_set_thread_area(struct user_desc __user *u_info)
  * Get the current Thread-Local Storage area:
  */
 
-#define GET_LIMIT(desc) ( \
-	((desc)->a & 0x0ffff) | \
-	 ((desc)->b & 0xf0000) )
-
-#define GET_32BIT(desc)		(((desc)->b >> 22) & 1)
-#define GET_CONTENTS(desc)	(((desc)->b >> 10) & 3)
-#define GET_WRITABLE(desc)	(((desc)->b >>  9) & 1)
-#define GET_LIMIT_PAGES(desc)	(((desc)->b >> 23) & 1)
-#define GET_PRESENT(desc)	(((desc)->b >> 15) & 1)
-#define GET_USEABLE(desc)	(((desc)->b >> 20) & 1)
-#define GET_LONGMODE(desc)	(((desc)->b >> 21) & 1)
-
-int do_get_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
+#define GET_LIMIT(desc)		(((desc)[0] & 0x0ffff) | ((desc)[1] & 0xf0000))
+#define GET_32BIT(desc)		(((desc)[1] >> 22) & 1)
+#define GET_CONTENTS(desc)	(((desc)[1] >> 10) & 3)
+#define GET_WRITABLE(desc)	(((desc)[1] >>  9) & 1)
+#define GET_LIMIT_PAGES(desc)	(((desc)[1] >> 23) & 1)
+#define GET_PRESENT(desc)	(((desc)[1] >> 15) & 1)
+#define GET_USEABLE(desc)	(((desc)[1] >> 20) & 1)
+#define GET_LONGMODE(desc)	(((desc)[1] >> 21) & 1)
+
+int do_get_thread_area(struct task_struct *p, int idx,
+		       struct user_desc __user *u_info)
 {
+	struct thread_struct *t = &p->thread;
 	struct user_desc info;
-	struct n_desc_struct *desc;
-	int idx;
+	u32 *desc;
 
-	if (get_user(idx, &u_info->entry_number))
+	if (idx == -1 && get_user(idx, &u_info->entry_number))
 		return -EFAULT;
 	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
 		return -EINVAL;
 
-	desc = ((struct n_desc_struct *)t->tls_array) + idx - GDT_ENTRY_TLS_MIN;
+	desc = (u32 *) &t->tls_array[idx - GDT_ENTRY_TLS_MIN];
 
 	memset(&info, 0, sizeof(struct user_desc));
 	info.entry_number = idx;
-	info.base_addr = get_desc_base(desc);
+	info.base_addr = get_desc_base((void *)desc);
 	info.limit = GET_LIMIT(desc);
 	info.seg_32bit = GET_32BIT(desc);
 	info.contents = GET_CONTENTS(desc);
@@ -120,39 +121,16 @@ int do_get_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
 	info.limit_in_pages = GET_LIMIT_PAGES(desc);
 	info.seg_not_present = !GET_PRESENT(desc);
 	info.useable = GET_USEABLE(desc);
+#ifdef CONFIG_X86_64
 	info.lm = GET_LONGMODE(desc);
+#endif
 
 	if (copy_to_user(u_info, &info, sizeof(info)))
 		return -EFAULT;
 	return 0;
 }
 
-asmlinkage long sys32_get_thread_area(struct user_desc __user *u_info)
+asmlinkage int sys_get_thread_area(struct user_desc __user *u_info)
 {
-	return do_get_thread_area(&current->thread, u_info);
-}
-
-
-int ia32_child_tls(struct task_struct *p, struct pt_regs *childregs)
-{
-	struct n_desc_struct *desc;
-	struct user_desc info;
-	struct user_desc __user *cp;
-	int idx;
-
-	cp = (void __user *)childregs->rsi;
-	if (copy_from_user(&info, cp, sizeof(info)))
-		return -EFAULT;
-	if (LDT_empty(&info))
-		return -EINVAL;
-
-	idx = info.entry_number;
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	desc = (struct n_desc_struct *)(p->thread.tls_array) + idx - GDT_ENTRY_TLS_MIN;
-	desc->a = LDT_entry_a(&info);
-	desc->b = LDT_entry_b(&info);
-
-	return 0;
+	return do_get_thread_area(current, -1, u_info);
 }
diff --git a/include/asm-x86/ia32.h b/include/asm-x86/ia32.h
index 0190b7c4e319..aa9733206e29 100644
--- a/include/asm-x86/ia32.h
+++ b/include/asm-x86/ia32.h
@@ -159,12 +159,6 @@ struct ustat32 {
 #define IA32_STACK_TOP IA32_PAGE_OFFSET
 
 #ifdef __KERNEL__
-struct user_desc;
-struct siginfo_t;
-int do_get_thread_area(struct thread_struct *t, struct user_desc __user *info);
-int do_set_thread_area(struct thread_struct *t, struct user_desc __user *info);
-int ia32_child_tls(struct task_struct *p, struct pt_regs *childregs);
-
 struct linux_binprm;
 extern int ia32_setup_arg_pages(struct linux_binprm *bprm,
 				unsigned long stack_top, int exec_stack);
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index 51ddb2590870..105d1534eaf4 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -137,6 +137,17 @@ enum {
 };
 #endif /* __KERNEL__ */
 #endif /* !__i386__ */
+
+#ifdef __KERNEL__
+
+struct user_desc;
+extern int do_get_thread_area(struct task_struct *p, int idx,
+			      struct user_desc __user *info);
+extern int do_set_thread_area(struct task_struct *p, int idx,
+			      struct user_desc __user *info, int can_allocate);
+
+#endif /* __KERNEL__ */
+
 #endif /* !__ASSEMBLY__ */
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From b3ca74a2bfc66262d21443b160815eb26d6699e6 Mon Sep 17 00:00:00 2001
From: Vladimir Berezniker <vmpn@hitechman.com>
Date: Wed, 30 Jan 2008 13:30:46 +0100
Subject: x86: sanitize user specified e820 memmap values

Sanitize user specified e820 memory ranges, using the same logic that is
applied to the values returned by the BIOS.  This ensures consistent
handling regardless of the source of the memory mappings.

Allows overriding portions of the memory map without specifying one in
it's entirety (memmap=exactmap).

E.g. marking a range of bad RAM as reserved with memmap=48M$528M

BIOS supplied range

BIOS-e820: 0000000000100000 - 000000007fe80000 (usable)

becomes

user: 0000000000100000 - 0000000021000000 (usable)
user: 0000000021000000 - 0000000024000000 (reserved)
user: 0000000024000000 - 000000007fe80000 (usable)

Previously this did not work, as the original BIOS range was left
untouched while the user defined range was appended to the end of the
memory map.

[ tglx: arch/x86 adaptation ]

Signed-off-by: Vladimir Berezniker <vmpn@hitechman.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/e820_64.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index 151236896243..8e7321101a0a 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -691,6 +691,8 @@ static int __init parse_memmap_opt(char *p)
 	mem_size = memparse(p, &p);
 	if (p == oldp)
 		return -EINVAL;
+
+	userdef = 1;
 	if (*p == '@') {
 		start_at = memparse(p+1, &p);
 		add_memory_region(start_at, mem_size, E820_RAM);
@@ -710,6 +712,12 @@ early_param("memmap", parse_memmap_opt);
 void __init finish_e820_parsing(void)
 {
 	if (userdef) {
+		char nr = e820.nr_map;
+
+		if (sanitize_e820_map(e820.map, &nr) < 0)
+			early_panic("Invalid user supplied memory map");
+		e820.nr_map = nr;
+
 		printk(KERN_INFO "user-defined physical RAM map:\n");
 		e820_print_map("user");
 	}
-- 
cgit v1.2.3-59-g8ed1b


From 949ec325c79add68af13705b68a885a1efb84234 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:30:46 +0100
Subject: x86: set cpu_index to nr_cpus instead of 0

Some BIOSes that support two/four dualcore/quadcore systems, will get:

ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
Processor #0 15:1 APIC version 16
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
Processor #1 15:1 APIC version 16
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x02] enabled)
Processor #2 15:1 APIC version 16
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled)
Processor #3 15:1 APIC version 16
ACPI: LAPIC (acpi_id[0x05] lapic_id[0x84] disabled)
ACPI: LAPIC (acpi_id[0x06] lapic_id[0x85] disabled)
ACPI: LAPIC (acpi_id[0x07] lapic_id[0x86] disabled)
ACPI: LAPIC (acpi_id[0x08] lapic_id[0x87] disabled)
ACPI: LAPIC (acpi_id[0x09] lapic_id[0x88] disabled)
ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x89] disabled)
ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x8a] disabled)
ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x8b] disabled)
ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x8c] disabled)
ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x8d] disabled)
ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x8e] disabled)
ACPI: LAPIC (acpi_id[0x10] lapic_id[0x8f] disabled)

SMP: Allowing 16 CPUs, 12 hotplug CPUs

the /proc/cpuinfo will show a bunch of NULL cpus with cpu_index=0

so assign impossible cpu_index value at first instead of 0.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/smpboot_64.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index ddefb38c53fb..8ac8eb620428 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -861,6 +861,18 @@ void __init smp_set_apicids(void)
 	x86_cpu_to_apicid_ptr = NULL;
 }
 
+static void __init smp_cpu_index_default(void)
+{
+	int i;
+	struct cpuinfo_x86 *c;
+
+	for_each_cpu_mask(i, cpu_possible_map) {
+		c = &cpu_data(i);
+		/* mark all to hotplug */
+		c->cpu_index = NR_CPUS;
+	}
+}
+
 /*
  * Prepare for SMP bootup.  The MP table or ACPI has been read
  * earlier.  Just do some sanity checking here and enable APIC mode.
@@ -868,6 +880,7 @@ void __init smp_set_apicids(void)
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
 	nmi_watchdog_default();
+	smp_cpu_index_default();
 	current_cpu_data = boot_cpu_data;
 	current_thread_info()->cpu = 0;  /* needed? */
 	smp_set_apicids();
-- 
cgit v1.2.3-59-g8ed1b


From 9de819fe72fc6979ddd18aa04ef9e2af5aa8bc5f Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:30:46 +0100
Subject: x86: do not set boot cpu in cpu_online_map at x86_64_start_kernel()

In init/main.c boot_cpu_init() does that later.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Zachary Amsden <zach@vmware.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/head64.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 6643f3f994fb..4a1c1356c41a 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -69,8 +69,6 @@ void __init x86_64_start_kernel(char * real_mode_data)
 
 	pda_init(0);
 	copy_bootdata(__va(real_mode_data));
-#ifdef CONFIG_SMP
-	cpu_set(0, cpu_online_map);
-#endif
+
 	start_kernel();
 }
-- 
cgit v1.2.3-59-g8ed1b


From 4ebd1290ba12121d66285cc06987ca97bcdfc55b Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bbpetkov@yahoo.de>
Date: Wed, 30 Jan 2008 13:30:46 +0100
Subject: x86: vmlinux_32.lds.S: remove repeated comment from the x86-32 linker
 script

Remove repeated comment from the linker script for the x86-32 target.

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/vmlinux_32.lds.S | 6 ------
 1 file changed, 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S
index 84c913f38f98..ec072588ff01 100644
--- a/arch/x86/kernel/vmlinux_32.lds.S
+++ b/arch/x86/kernel/vmlinux_32.lds.S
@@ -8,12 +8,6 @@
  * put it inside the section definition.
  */
 
-/* Don't define absolute symbols until and unless you know that symbol
- * value is should remain constant even if kernel image is relocated
- * at run time. Absolute symbols are not relocated. If symbol value should
- * change if kernel is relocated, make the symbol section relative and
- * put it inside the section definition.
- */
 #define LOAD_OFFSET __PAGE_OFFSET
 
 #include <asm-generic/vmlinux.lds.h>
-- 
cgit v1.2.3-59-g8ed1b


From b263295dbffd33b0fbff670720fa178c30e3392a Mon Sep 17 00:00:00 2001
From: Christoph Lameter <clameter@sgi.com>
Date: Wed, 30 Jan 2008 13:30:47 +0100
Subject: x86: 64-bit, make sparsemem vmemmap the only memory model

Use sparsemem as the only memory model for UP, SMP and NUMA.  Measurements
indicate that DISCONTIGMEM has a higher overhead than sparsemem.  And
FLATMEMs benefits are minimal.  So I think its best to simply standardize
on sparsemem.

Results of page allocator tests (test can be had via git from slab git
tree branch tests)

Measurements in cycle counts. 1000 allocations were performed and then the
average cycle count was calculated.

Order	FlatMem	Discontig	SparseMem
0	  639	  665		  641
1	  567	  647		  593
2	  679	  774		  692
3	  763	  967		  781
4	  961	 1501		  962
5	 1356	 2344		 1392
6	 2224	 3982		 2336
7	 4869	 7225		 5074
8	12500	14048		12732
9	27926	28223		28165
10	58578	58714		58682

(Note that FlatMem is an SMP config and the rest NUMA configurations)

Memory use:

SMP Sparsemem
-------------

Kernel size:

   text    data     bss     dec     hex filename
3849268  397739 1264856 5511863  541ab7 vmlinux

             total       used       free     shared    buffers     cached
Mem:       8242252      41164    8201088          0        352      11512
-/+ buffers/cache:      29300    8212952
Swap:      9775512          0    9775512

SMP Flatmem
-----------

Kernel size:

   text    data     bss     dec     hex filename
3844612  397739 1264536 5506887  540747 vmlinux

So 4.5k growth in text size vs. FLATMEM.

             total       used       free     shared    buffers     cached
Mem:       8244052      40544    8203508          0        352      11484
-/+ buffers/cache:      28708    8215344

2k growth in overall memory use after boot.

NUMA discontig:

   text    data     bss     dec     hex filename
3888124  470659 1276504 5635287  55fcd7 vmlinux

             total       used       free     shared    buffers     cached
Mem:       8256256      56908    8199348          0        352      11496
-/+ buffers/cache:      45060    8211196
Swap:      9775512          0    9775512

NUMA sparse:

   text    data     bss     dec     hex filename
3896428  470659 1276824 5643911  561e87 vmlinux

8k text growth. Given that we fully inline virt_to_page and friends now
that is rather good.

             total       used       free     shared    buffers     cached
Mem:       8264720      57240    8207480          0        352      11516
-/+ buffers/cache:      45372    8219348
Swap:      9775512          0    9775512

The total available memory is increased by 8k.

This patch makes sparsemem the default and removes discontig and
flatmem support from x86.

[ akpm@linux-foundation.org: allnoconfig build fix ]

Acked-by: Andi Kleen <ak@suse.de>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig                   | 22 ++++++---------
 arch/x86/configs/x86_64_defconfig  |  9 ------
 arch/x86/kernel/machine_kexec_64.c |  5 ----
 arch/x86/mm/init_64.c              | 28 -------------------
 arch/x86/mm/ioremap_64.c           | 17 ------------
 arch/x86/mm/numa_64.c              | 21 --------------
 arch/x86/mm/srat_64.c              | 57 --------------------------------------
 include/asm-x86/mmzone_64.h        |  6 ----
 include/asm-x86/page_64.h          |  3 --
 9 files changed, 9 insertions(+), 159 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2f4d88babd36..da98368f66af 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -891,25 +891,29 @@ config HAVE_ARCH_ALLOC_REMAP
 
 config ARCH_FLATMEM_ENABLE
 	def_bool y
-	depends on (X86_32 && ARCH_SELECT_MEMORY_MODEL && X86_PC) || (X86_64 && !NUMA)
+	depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && X86_PC
 
 config ARCH_DISCONTIGMEM_ENABLE
 	def_bool y
-	depends on NUMA
+	depends on NUMA && X86_32
 
 config ARCH_DISCONTIGMEM_DEFAULT
 	def_bool y
-	depends on NUMA
+	depends on NUMA && X86_32
+
+config ARCH_SPARSEMEM_DEFAULT
+	def_bool y
+	depends on X86_64
 
 config ARCH_SPARSEMEM_ENABLE
 	def_bool y
-	depends on NUMA || (EXPERIMENTAL && (X86_PC || X86_64))
+	depends on X86_64 || NUMA || (EXPERIMENTAL && X86_PC)
 	select SPARSEMEM_STATIC if X86_32
 	select SPARSEMEM_VMEMMAP_ENABLE if X86_64
 
 config ARCH_SELECT_MEMORY_MODEL
 	def_bool y
-	depends on X86_32 && ARCH_SPARSEMEM_ENABLE
+	depends on ARCH_SPARSEMEM_ENABLE
 
 config ARCH_MEMORY_PROBE
 	def_bool X86_64
@@ -1207,18 +1211,10 @@ config ARCH_ENABLE_MEMORY_HOTPLUG
 	def_bool y
 	depends on X86_64 || (X86_32 && HIGHMEM)
 
-config MEMORY_HOTPLUG_RESERVE
-	def_bool X86_64
-	depends on (MEMORY_HOTPLUG && DISCONTIGMEM)
-
 config HAVE_ARCH_EARLY_PFN_TO_NID
 	def_bool X86_64
 	depends on NUMA
 
-config OUT_OF_LINE_PFN_TO_PAGE
-	def_bool X86_64
-	depends on DISCONTIGMEM
-
 menu "Power management options"
 	depends on !X86_VOYAGER
 
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index 38a83f9c966f..9e2b0ef851de 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -145,15 +145,6 @@ CONFIG_K8_NUMA=y
 CONFIG_NODES_SHIFT=6
 CONFIG_X86_64_ACPI_NUMA=y
 CONFIG_NUMA_EMU=y
-CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
-CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
-CONFIG_ARCH_SPARSEMEM_ENABLE=y
-CONFIG_SELECT_MEMORY_MODEL=y
-# CONFIG_FLATMEM_MANUAL is not set
-CONFIG_DISCONTIGMEM_MANUAL=y
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_DISCONTIGMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
 CONFIG_NEED_MULTIPLE_NODES=y
 # CONFIG_SPARSEMEM_STATIC is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index aa3d2c8f7737..a1fef42f8cdb 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -234,10 +234,5 @@ NORET_TYPE void machine_kexec(struct kimage *image)
 void arch_crash_save_vmcoreinfo(void)
 {
 	VMCOREINFO_SYMBOL(init_level4_pgt);
-
-#ifdef CONFIG_ARCH_DISCONTIGMEM_ENABLE
-	VMCOREINFO_SYMBOL(node_data);
-	VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
-#endif
 }
 
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 0fbb657a8b19..251eeb325ae3 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -486,34 +486,6 @@ EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
 
 #endif /* CONFIG_MEMORY_HOTPLUG */
 
-#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE
-/*
- * Memory Hotadd without sparsemem. The mem_maps have been allocated in advance,
- * just online the pages.
- */
-int __add_pages(struct zone *z, unsigned long start_pfn, unsigned long nr_pages)
-{
-	int err = -EIO;
-	unsigned long pfn;
-	unsigned long total = 0, mem = 0;
-	for (pfn = start_pfn; pfn < start_pfn + nr_pages; pfn++) {
-		if (pfn_valid(pfn)) {
-			online_page(pfn_to_page(pfn));
-			err = 0;
-			mem++;
-		}
-		total++;
-	}
-	if (!err) {
-		z->spanned_pages += total;
-		z->present_pages += mem;
-		z->zone_pgdat->node_spanned_pages += total;
-		z->zone_pgdat->node_present_pages += mem;
-	}
-	return err;
-}
-#endif
-
 static struct kcore_list kcore_mem, kcore_vmalloc, kcore_kernel, kcore_modules,
 			 kcore_vsyscall;
 
diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
index 6cac90aa5032..b03db4ca9cad 100644
--- a/arch/x86/mm/ioremap_64.c
+++ b/arch/x86/mm/ioremap_64.c
@@ -86,23 +86,6 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
 	if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
 		return (__force void __iomem *)phys_to_virt(phys_addr);
 
-#ifdef CONFIG_FLATMEM
-	/*
-	 * Don't allow anybody to remap normal RAM that we're using..
-	 */
-	if (last_addr < virt_to_phys(high_memory)) {
-		char *t_addr, *t_end;
- 		struct page *page;
-
-		t_addr = __va(phys_addr);
-		t_end = t_addr + (size - 1);
-	   
-		for(page = virt_to_page(t_addr); page <= virt_to_page(t_end); page++)
-			if(!PageReserved(page))
-				return NULL;
-	}
-#endif
-
 	pgprot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_GLOBAL
 			  | _PAGE_DIRTY | _PAGE_ACCESSED | flags);
 	/*
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 29b69300aee2..46b4b5e1a02a 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -153,12 +153,10 @@ int __init compute_hash_shift(struct bootnode *nodes, int numnodes)
 	return shift;
 }
 
-#ifdef CONFIG_SPARSEMEM
 int early_pfn_to_nid(unsigned long pfn)
 {
 	return phys_to_nid(pfn << PAGE_SHIFT);
 }
-#endif
 
 static void * __init early_node_mem(int nodeid, unsigned long start,
 				    unsigned long end, unsigned long size)
@@ -635,23 +633,4 @@ void __init init_cpu_to_node(void)
 	}
 }
 
-#ifdef CONFIG_DISCONTIGMEM
-/*
- * Functions to convert PFNs from/to per node page addresses.
- * These are out of line because they are quite big.
- * They could be all tuned by pre caching more state.
- * Should do that.
- */
 
-int pfn_valid(unsigned long pfn)
-{
-	unsigned nid;
-	if (pfn >= num_physpages)
-		return 0;
-	nid = pfn_to_nid(pfn);
-	if (nid == 0xff)
-		return 0;
-	return pfn >= node_start_pfn(nid) && (pfn) < node_end_pfn(nid);
-}
-EXPORT_SYMBOL(pfn_valid);
-#endif
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index ea85172fc0cc..9be14171144b 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -151,62 +151,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	       pxm, pa->apic_id, node);
 }
 
-#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE
-/*
- * Protect against too large hotadd areas that would fill up memory.
- */
-static int hotadd_enough_memory(struct bootnode *nd)
-{
-	static unsigned long allocated;
-	static unsigned long last_area_end;
-	unsigned long pages = (nd->end - nd->start) >> PAGE_SHIFT;
-	long mem = pages * sizeof(struct page);
-	unsigned long addr;
-	unsigned long allowed;
-	unsigned long oldpages = pages;
-
-	if (mem < 0)
-		return 0;
-	allowed = (end_pfn - absent_pages_in_range(0, end_pfn)) * PAGE_SIZE;
-	allowed = (allowed / 100) * hotadd_percent;
-	if (allocated + mem > allowed) {
-		unsigned long range;
-		/* Give them at least part of their hotadd memory upto hotadd_percent
-		   It would be better to spread the limit out
-		   over multiple hotplug areas, but that is too complicated
-		   right now */
-		if (allocated >= allowed)
-			return 0;
-		range = allowed - allocated;
-		pages = (range / PAGE_SIZE);
-		mem = pages * sizeof(struct page);
-		nd->end = nd->start + range;
-	}
-	/* Not completely fool proof, but a good sanity check */
-	addr = find_e820_area(last_area_end, end_pfn<<PAGE_SHIFT, mem);
-	if (addr == -1UL)
-		return 0;
-	if (pages != oldpages)
-		printk(KERN_NOTICE "SRAT: Hotadd area limited to %lu bytes\n",
-			pages << PAGE_SHIFT);
-	last_area_end = addr + mem;
-	allocated += mem;
-	return 1;
-}
-
-static int update_end_of_memory(unsigned long end)
-{
-	found_add_area = 1;
-	if ((end >> PAGE_SHIFT) > end_pfn)
-		end_pfn = end >> PAGE_SHIFT;
-	return 1;
-}
-
-static inline int save_add_info(void)
-{
-	return hotadd_percent > 0;
-}
-#else
 int update_end_of_memory(unsigned long end) {return -1;}
 static int hotadd_enough_memory(struct bootnode *nd) {return 1;}
 #ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
@@ -214,7 +158,6 @@ static inline int save_add_info(void) {return 1;}
 #else
 static inline int save_add_info(void) {return 0;}
 #endif
-#endif
 /*
  * Update nodes_add and decide if to include add are in the zone.
  * Both SPARSE and RESERVE need nodes_add infomation.
diff --git a/include/asm-x86/mmzone_64.h b/include/asm-x86/mmzone_64.h
index 1e0ed34a6adc..b0c25ae111d9 100644
--- a/include/asm-x86/mmzone_64.h
+++ b/include/asm-x86/mmzone_64.h
@@ -43,12 +43,6 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
 
 extern int early_pfn_to_nid(unsigned long pfn);
 
-#ifdef CONFIG_DISCONTIGMEM
-#define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
-
-extern int pfn_valid(unsigned long pfn);
-#endif
-
 #ifdef CONFIG_NUMA_EMU
 #define FAKE_NODE_MIN_SIZE	(64*1024*1024)
 #define FAKE_NODE_MIN_HASH_MASK	(~(FAKE_NODE_MIN_SIZE - 1uL))
diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
index 6fdc904a5fa5..d400167c5509 100644
--- a/include/asm-x86/page_64.h
+++ b/include/asm-x86/page_64.h
@@ -122,9 +122,6 @@ extern unsigned long __phys_addr(unsigned long);
 #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
 #define __boot_va(x)		__va(x)
 #define __boot_pa(x)		__pa(x)
-#ifdef CONFIG_FLATMEM
-#define pfn_valid(pfn)		((pfn) < end_pfn)
-#endif
 
 #define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
-- 
cgit v1.2.3-59-g8ed1b


From 5f627f8e122a163ce53908d55e088247db31f1d7 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 30 Jan 2008 13:30:47 +0100
Subject: mips, x86: optimize the i8259 code a bit

The timer code always calls the clock_event_device set_net_event and
set_mode methods with interrupts disabled, so no need to use
spin_lock_irqsave / spin_unlock_irqrestore for those.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by:Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/mips/kernel/i8253.c | 12 ++++--------
 arch/x86/kernel/i8253.c  | 12 ++++--------
 2 files changed, 8 insertions(+), 16 deletions(-)

(limited to 'arch')

diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c
index c2d497ceffdd..fc4aa07b6d35 100644
--- a/arch/mips/kernel/i8253.c
+++ b/arch/mips/kernel/i8253.c
@@ -24,9 +24,7 @@ DEFINE_SPINLOCK(i8253_lock);
 static void init_pit_timer(enum clock_event_mode mode,
 			   struct clock_event_device *evt)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&i8253_lock, flags);
+	spin_lock(&i8253_lock);
 
 	switch(mode) {
 	case CLOCK_EVT_MODE_PERIODIC:
@@ -55,7 +53,7 @@ static void init_pit_timer(enum clock_event_mode mode,
 		/* Nothing to do here */
 		break;
 	}
-	spin_unlock_irqrestore(&i8253_lock, flags);
+	spin_unlock(&i8253_lock);
 }
 
 /*
@@ -65,12 +63,10 @@ static void init_pit_timer(enum clock_event_mode mode,
  */
 static int pit_next_event(unsigned long delta, struct clock_event_device *evt)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&i8253_lock, flags);
+	spin_lock(&i8253_lock);
 	outb_p(delta & 0xff , PIT_CH0);	/* LSB */
 	outb(delta >> 8 , PIT_CH0);	/* MSB */
-	spin_unlock_irqrestore(&i8253_lock, flags);
+	spin_unlock(&i8253_lock);
 
 	return 0;
 }
diff --git a/arch/x86/kernel/i8253.c b/arch/x86/kernel/i8253.c
index 377c3f8411f8..c76fef1ce355 100644
--- a/arch/x86/kernel/i8253.c
+++ b/arch/x86/kernel/i8253.c
@@ -38,9 +38,7 @@ struct clock_event_device *global_clock_event;
 static void init_pit_timer(enum clock_event_mode mode,
 			   struct clock_event_device *evt)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&i8253_lock, flags);
+	spin_lock(&i8253_lock);
 
 	switch(mode) {
 	case CLOCK_EVT_MODE_PERIODIC:
@@ -71,7 +69,7 @@ static void init_pit_timer(enum clock_event_mode mode,
 		/* Nothing to do here */
 		break;
 	}
-	spin_unlock_irqrestore(&i8253_lock, flags);
+	spin_unlock(&i8253_lock);
 }
 
 /*
@@ -81,12 +79,10 @@ static void init_pit_timer(enum clock_event_mode mode,
  */
 static int pit_next_event(unsigned long delta, struct clock_event_device *evt)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&i8253_lock, flags);
+	spin_lock(&i8253_lock);
 	outb_p(delta & 0xff , PIT_CH0);	/* LSB */
 	outb(delta >> 8 , PIT_CH0);	/* MSB */
-	spin_unlock_irqrestore(&i8253_lock, flags);
+	spin_unlock(&i8253_lock);
 
 	return 0;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 2c0b8a7578f7653e1e5312a5232e8ead563cf477 Mon Sep 17 00:00:00 2001
From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Date: Wed, 30 Jan 2008 13:30:47 +0100
Subject: x86: fall back on interrupt disable in cmpxchg8b on 80386 and 80486

Actually, on 386, cmpxchg and cmpxchg_local fall back on
cmpxchg_386_u8/16/32: it disables interruptions around non atomic
updates to mimic the cmpxchg behavior.

The comment:
/* Poor man's cmpxchg for 386. Unsuitable for SMP */

already present in cmpxchg_386_u32 tells much about how this cmpxchg
implementation should not be used in a SMP context. However, the cmpxchg_local
can perfectly use this fallback, since it only needs to be atomic wrt the local
cpu.

This patch adds a cmpxchg_486_u64 and uses it as a fallback for cmpxchg64
and cmpxchg64_local on 80386 and 80486.

Q:
but why is it called cmpxchg_486 when the other functions are called

A:
Because the standard cmpxchg is missing only on 386, but cmpxchg8b is
missing both on 386 and 486.

Citing Intel's Instruction set reference:

cmpxchg:
This instruction is not supported on Intel processors earlier than the
Intel486 processors.

cmpxchg8b:
This instruction encoding is not supported on Intel processors earlier
than the Pentium processors.

Q:
What's the reason to have cmpxchg64_local on 32 bit architectures?
Without that need all this would just be a few simple defines.

A:
cmpxchg64_local on 32 bits architectures takes unsigned long long
parameters, but cmpxchg_local only takes longs. Since we have cmpxchg8b
to execute a 8 byte cmpxchg atomically on pentium and +, it makes sense
to provide a flavor of cmpxchg and cmpxchg_local using this instruction.

Also, for 32 bits architectures lacking the 64 bits atomic cmpxchg, it
makes sense _not_ to define cmpxchg64 while cmpxchg could still be
available.

Moreover, the fallback for cmpxchg8b on i386 for 386 and 486 is a

However, cmpxchg64_local will be emulated by disabling interrupts on all
architectures where it is not supported atomically.

Therefore, we *could* turn cmpxchg64_local into a cmpxchg_local, but it
would make the 386/486 fallbacks ugly, make its design different from
cmpxchg/cmpxchg64 (which really depends on atomic operations and cannot
be emulated) and require the __cmpxchg_local to be expressed as a macro
rather than an inline function so the parameters would not be fixed to
unsigned long long in every case.

So I think cmpxchg64_local makes sense there, but I am open to
suggestions.

Q:
Are there any callers?

A:
I am actually using it in LTTng in my timestamping code. I use it to
work around CPUs with asynchronous TSCs. I need to update 64 bits
values atomically on this 32 bits architecture.

Changelog:
- Ran though checkpatch.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/intel.c  |  17 ++++++
 include/asm-x86/cmpxchg_32.h | 122 ++++++++++++++++++++++++++++---------------
 2 files changed, 96 insertions(+), 43 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index cc8c501b9f39..867ff94579be 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -342,5 +342,22 @@ unsigned long cmpxchg_386_u32(volatile void *ptr, u32 old, u32 new)
 EXPORT_SYMBOL(cmpxchg_386_u32);
 #endif
 
+#ifndef CONFIG_X86_CMPXCHG64
+unsigned long long cmpxchg_486_u64(volatile void *ptr, u64 old, u64 new)
+{
+	u64 prev;
+	unsigned long flags;
+
+	/* Poor man's cmpxchg8b for 386 and 486. Unsuitable for SMP */
+	local_irq_save(flags);
+	prev = *(u64 *)ptr;
+	if (prev == old)
+		*(u64 *)ptr = new;
+	local_irq_restore(flags);
+	return prev;
+}
+EXPORT_SYMBOL(cmpxchg_486_u64);
+#endif
+
 // arch_initcall(intel_cpu_init);
 
diff --git a/include/asm-x86/cmpxchg_32.h b/include/asm-x86/cmpxchg_32.h
index f86ede28f6dc..cea1dae288a7 100644
--- a/include/asm-x86/cmpxchg_32.h
+++ b/include/asm-x86/cmpxchg_32.h
@@ -105,15 +105,24 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
 
 #ifdef CONFIG_X86_CMPXCHG
 #define __HAVE_ARCH_CMPXCHG 1
-#define cmpxchg(ptr,o,n)\
-	((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),\
-					(unsigned long)(n),sizeof(*(ptr))))
-#define sync_cmpxchg(ptr,o,n)\
-	((__typeof__(*(ptr)))__sync_cmpxchg((ptr),(unsigned long)(o),\
-					(unsigned long)(n),sizeof(*(ptr))))
-#define cmpxchg_local(ptr,o,n)\
-	((__typeof__(*(ptr)))__cmpxchg_local((ptr),(unsigned long)(o),\
-					(unsigned long)(n),sizeof(*(ptr))))
+#define cmpxchg(ptr, o, n)						     \
+	((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o),	     \
+					(unsigned long)(n), sizeof(*(ptr))))
+#define sync_cmpxchg(ptr, o, n)						     \
+	((__typeof__(*(ptr)))__sync_cmpxchg((ptr), (unsigned long)(o),	     \
+					(unsigned long)(n), sizeof(*(ptr))))
+#define cmpxchg_local(ptr, o, n)					     \
+	((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o),	     \
+					(unsigned long)(n), sizeof(*(ptr))))
+#endif
+
+#ifdef CONFIG_X86_CMPXCHG64
+#define cmpxchg64(ptr, o, n)						      \
+	((__typeof__(*(ptr)))__cmpxchg64((ptr), (unsigned long long)(o),      \
+					(unsigned long long)(n)))
+#define cmpxchg64_local(ptr, o, n)					      \
+	((__typeof__(*(ptr)))__cmpxchg64_local((ptr), (unsigned long long)(o),\
+					(unsigned long long)(n)))
 #endif
 
 static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
@@ -203,6 +212,34 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
 	return old;
 }
 
+static inline unsigned long long __cmpxchg64(volatile void *ptr,
+			unsigned long long old, unsigned long long new)
+{
+	unsigned long long prev;
+	__asm__ __volatile__(LOCK_PREFIX "cmpxchg8b %3"
+			     : "=A"(prev)
+			     : "b"((unsigned long)new),
+			       "c"((unsigned long)(new >> 32)),
+			       "m"(*__xg(ptr)),
+			       "0"(old)
+			     : "memory");
+	return prev;
+}
+
+static inline unsigned long long __cmpxchg64_local(volatile void *ptr,
+			unsigned long long old, unsigned long long new)
+{
+	unsigned long long prev;
+	__asm__ __volatile__("cmpxchg8b %3"
+			     : "=A"(prev)
+			     : "b"((unsigned long)new),
+			       "c"((unsigned long)(new >> 32)),
+			       "m"(*__xg(ptr)),
+			       "0"(old)
+			     : "memory");
+	return prev;
+}
+
 #ifndef CONFIG_X86_CMPXCHG
 /*
  * Building a kernel capable running on 80386. It may be necessary to
@@ -228,7 +265,7 @@ static inline unsigned long cmpxchg_386(volatile void *ptr, unsigned long old,
 	return old;
 }
 
-#define cmpxchg(ptr,o,n)						\
+#define cmpxchg(ptr, o, n)						\
 ({									\
 	__typeof__(*(ptr)) __ret;					\
 	if (likely(boot_cpu_data.x86 > 3))				\
@@ -239,7 +276,7 @@ static inline unsigned long cmpxchg_386(volatile void *ptr, unsigned long old,
 					(unsigned long)(n), sizeof(*(ptr))); \
 	__ret;								\
 })
-#define cmpxchg_local(ptr,o,n)						\
+#define cmpxchg_local(ptr, o, n)					\
 ({									\
 	__typeof__(*(ptr)) __ret;					\
 	if (likely(boot_cpu_data.x86 > 3))				\
@@ -252,38 +289,37 @@ static inline unsigned long cmpxchg_386(volatile void *ptr, unsigned long old,
 })
 #endif
 
-static inline unsigned long long __cmpxchg64(volatile void *ptr, unsigned long long old,
-				      unsigned long long new)
-{
-	unsigned long long prev;
-	__asm__ __volatile__(LOCK_PREFIX "cmpxchg8b %3"
-			     : "=A"(prev)
-			     : "b"((unsigned long)new),
-			       "c"((unsigned long)(new >> 32)),
-			       "m"(*__xg(ptr)),
-			       "0"(old)
-			     : "memory");
-	return prev;
-}
+#ifndef CONFIG_X86_CMPXCHG64
+/*
+ * Building a kernel capable running on 80386 and 80486. It may be necessary
+ * to simulate the cmpxchg8b on the 80386 and 80486 CPU.
+ */
 
-static inline unsigned long long __cmpxchg64_local(volatile void *ptr,
-			unsigned long long old, unsigned long long new)
-{
-	unsigned long long prev;
-	__asm__ __volatile__("cmpxchg8b %3"
-			     : "=A"(prev)
-			     : "b"((unsigned long)new),
-			       "c"((unsigned long)(new >> 32)),
-			       "m"(*__xg(ptr)),
-			       "0"(old)
-			     : "memory");
-	return prev;
-}
+extern unsigned long long cmpxchg_486_u64(volatile void *, u64, u64);
+
+#define cmpxchg64(ptr, o, n)						\
+({									\
+	__typeof__(*(ptr)) __ret;					\
+	if (likely(boot_cpu_data.x86 > 4))				\
+		__ret = __cmpxchg64((ptr), (unsigned long long)(o),	\
+				(unsigned long long)(n));		\
+	else								\
+		__ret = cmpxchg_486_u64((ptr), (unsigned long long)(o),	\
+				(unsigned long long)(n));		\
+	__ret;								\
+})
+#define cmpxchg64_local(ptr, o, n)					\
+({									\
+	__typeof__(*(ptr)) __ret;					\
+	if (likely(boot_cpu_data.x86 > 4))				\
+		__ret = __cmpxchg64_local((ptr), (unsigned long long)(o), \
+				(unsigned long long)(n));		\
+	else								\
+		__ret = cmpxchg_486_u64((ptr), (unsigned long long)(o),	\
+				(unsigned long long)(n));		\
+	__ret;								\
+})
+
+#endif
 
-#define cmpxchg64(ptr,o,n)\
-	((__typeof__(*(ptr)))__cmpxchg64((ptr),(unsigned long long)(o),\
-					(unsigned long long)(n)))
-#define cmpxchg64_local(ptr,o,n)\
-	((__typeof__(*(ptr)))__cmpxchg64_local((ptr),(unsigned long long)(o),\
-					(unsigned long long)(n)))
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 022eb43419f896a3647f769cdc3b5e13a8fb8ee7 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@osdl.org>
Date: Wed, 30 Jan 2008 13:30:47 +0100
Subject: x86: kmap_atomic() debugging

[ mingo@elte.hu: cleanups and made dependent on CONFIG_DEBUG_HIGHMEM.

  this caught a handful of bugs already, so lets apply it. If it gets
  things wrong we'll disable it. ]

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/highmem_32.c | 47 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 46 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index 1c3bf95f7356..3d936f232704 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -18,6 +18,49 @@ void kunmap(struct page *page)
 	kunmap_high(page);
 }
 
+static void debug_kmap_atomic_prot(enum km_type type)
+{
+#ifdef CONFIG_DEBUG_HIGHMEM
+	static unsigned warn_count = 10;
+
+	if (unlikely(warn_count == 0))
+		return;
+
+	if (unlikely(in_interrupt())) {
+		if (in_irq()) {
+			if (type != KM_IRQ0 && type != KM_IRQ1 &&
+			    type != KM_BIO_SRC_IRQ && type != KM_BIO_DST_IRQ &&
+			    type != KM_BOUNCE_READ) {
+				WARN_ON(1);
+				warn_count--;
+			}
+		} else if (!irqs_disabled()) {	/* softirq */
+			if (type != KM_IRQ0 && type != KM_IRQ1 &&
+			    type != KM_SOFTIRQ0 && type != KM_SOFTIRQ1 &&
+			    type != KM_SKB_SUNRPC_DATA &&
+			    type != KM_SKB_DATA_SOFTIRQ &&
+			    type != KM_BOUNCE_READ) {
+				WARN_ON(1);
+				warn_count--;
+			}
+		}
+	}
+
+	if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ ||
+			type == KM_BIO_SRC_IRQ || type == KM_BIO_DST_IRQ) {
+		if (!irqs_disabled()) {
+			WARN_ON(1);
+			warn_count--;
+		}
+	} else if (type == KM_SOFTIRQ0 || type == KM_SOFTIRQ1) {
+		if (irq_count() == 0 && !irqs_disabled()) {
+			WARN_ON(1);
+			warn_count--;
+		}
+	}
+#endif
+}
+
 /*
  * kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
  * no global lock is needed and because the kmap code must perform a global TLB
@@ -30,8 +73,10 @@ void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
 {
 	enum fixed_addresses idx;
 	unsigned long vaddr;
-
 	/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
+
+	debug_kmap_atomic_prot(type);
+
 	pagefault_disable();
 
 	if (!PageHighMem(page))
-- 
cgit v1.2.3-59-g8ed1b


From 77c03dcd448aa4c7be45f4edb97381ef463e3911 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:48 +0100
Subject: x86: remove TRAP_FLAG

This gets rid of the local constant macro TRAP_FLAG.
It's redundant with the public constant macro X86_EFLAGS_TF.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_32.c | 9 +++------
 arch/x86/kernel/ptrace_64.c | 9 +++------
 2 files changed, 6 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index 09227cfb7c4c..4619bda470b6 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -37,9 +37,6 @@
  */
 #define FLAG_MASK 0x00050dd5
 
-/* set's the trap flag. */
-#define TRAP_FLAG 0x100
-
 /*
  * Offset of eflags on child stack..
  */
@@ -235,11 +232,11 @@ static void set_singlestep(struct task_struct *child)
 	/*
 	 * If TF was already set, don't do anything else
 	 */
-	if (regs->eflags & TRAP_FLAG)
+	if (regs->eflags & X86_EFLAGS_TF)
 		return;
 
 	/* Set TF on the kernel stack.. */
-	regs->eflags |= TRAP_FLAG;
+	regs->eflags |= X86_EFLAGS_TF;
 
 	/*
 	 * ..but if TF is changed by the instruction we will trace,
@@ -260,7 +257,7 @@ static void clear_singlestep(struct task_struct *child)
 	/* But touch TF only if it was set by us.. */
 	if (child->ptrace & PT_DTRACE) {
 		struct pt_regs *regs = get_child_regs(child);
-		regs->eflags &= ~TRAP_FLAG;
+		regs->eflags &= ~X86_EFLAGS_TF;
 		child->ptrace &= ~PT_DTRACE;
 	}
 }
diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index 375fadc23a25..8e433b3773d2 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -42,9 +42,6 @@
  */
 #define FLAG_MASK 0x54dd5UL
 
-/* set's the trap flag. */
-#define TRAP_FLAG 0x100UL
-
 /*
  * eflags and offset of eflags on child stack..
  */
@@ -187,11 +184,11 @@ static void set_singlestep(struct task_struct *child)
 	/*
 	 * If TF was already set, don't do anything else
 	 */
-	if (regs->eflags & TRAP_FLAG)
+	if (regs->eflags & X86_EFLAGS_TF)
 		return;
 
 	/* Set TF on the kernel stack.. */
-	regs->eflags |= TRAP_FLAG;
+	regs->eflags |= X86_EFLAGS_TF;
 
 	/*
 	 * ..but if TF is changed by the instruction we will trace,
@@ -212,7 +209,7 @@ static void clear_singlestep(struct task_struct *child)
 	/* But touch TF only if it was set by us.. */
 	if (child->ptrace & PT_DTRACE) {
 		struct pt_regs *regs = task_pt_regs(child);
-		regs->eflags &= ~TRAP_FLAG;
+		regs->eflags &= ~X86_EFLAGS_TF;
 		child->ptrace &= ~PT_DTRACE;
 	}
 }
-- 
cgit v1.2.3-59-g8ed1b


From 7f232343e0ea37ffc0a552cdbd4825482c949281 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:48 +0100
Subject: x86: arch_has_single_step

This defines the new standard arch_has_single_step macro.  It makes the
existing set_singlestep and clear_singlestep entry points global, and
renames them to the new standard names user_enable_single_step and
user_disable_single_step, respectively.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_32.c | 12 ++++++------
 arch/x86/kernel/ptrace_64.c | 12 ++++++------
 include/asm-x86/ptrace.h    |  7 +++++++
 3 files changed, 19 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index 4619bda470b6..1402a54ef61f 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -218,7 +218,7 @@ static inline int is_setting_trap_flag(struct task_struct *child, struct pt_regs
 	return 0;
 }
 
-static void set_singlestep(struct task_struct *child)
+void user_enable_single_step(struct task_struct *child)
 {
 	struct pt_regs *regs = get_child_regs(child);
 
@@ -249,7 +249,7 @@ static void set_singlestep(struct task_struct *child)
 	child->ptrace |= PT_DTRACE;
 }
 
-static void clear_singlestep(struct task_struct *child)
+void user_disable_single_step(struct task_struct *child)
 {
 	/* Always clear TIF_SINGLESTEP... */
 	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
@@ -269,7 +269,7 @@ static void clear_singlestep(struct task_struct *child)
  */
 void ptrace_disable(struct task_struct *child)
 { 
-	clear_singlestep(child);
+	user_disable_single_step(child);
 	clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
 }
 
@@ -403,7 +403,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		}
 		child->exit_code = data;
 		/* make sure the single step bit is not set. */
-		clear_singlestep(child);
+		user_disable_single_step(child);
 		wake_up_process(child);
 		ret = 0;
 		break;
@@ -419,7 +419,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 			break;
 		child->exit_code = SIGKILL;
 		/* make sure the single step bit is not set. */
-		clear_singlestep(child);
+		user_disable_single_step(child);
 		wake_up_process(child);
 		break;
 
@@ -435,7 +435,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 			clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
 
 		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		set_singlestep(child);
+		user_enable_single_step(child);
 		child->exit_code = data;
 		/* give it a chance to run. */
 		wake_up_process(child);
diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index 8e433b3773d2..7373a99facf3 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -170,7 +170,7 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
 	return 0;
 }
 
-static void set_singlestep(struct task_struct *child)
+void user_enable_single_step(struct task_struct *child)
 {
 	struct pt_regs *regs = task_pt_regs(child);
 
@@ -201,7 +201,7 @@ static void set_singlestep(struct task_struct *child)
 	child->ptrace |= PT_DTRACE;
 }
 
-static void clear_singlestep(struct task_struct *child)
+void user_disable_single_step(struct task_struct *child)
 {
 	/* Always clear TIF_SINGLESTEP... */
 	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
@@ -221,7 +221,7 @@ static void clear_singlestep(struct task_struct *child)
  */
 void ptrace_disable(struct task_struct *child)
 { 
-	clear_singlestep(child);
+	user_disable_single_step(child);
 }
 
 static int putreg(struct task_struct *child,
@@ -461,7 +461,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		clear_tsk_thread_flag(child, TIF_SINGLESTEP);
 		child->exit_code = data;
 		/* make sure the single step bit is not set. */
-		clear_singlestep(child);
+		user_disable_single_step(child);
 		wake_up_process(child);
 		ret = 0;
 		break;
@@ -504,7 +504,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		clear_tsk_thread_flag(child, TIF_SINGLESTEP);
 		child->exit_code = SIGKILL;
 		/* make sure the single step bit is not set. */
-		clear_singlestep(child);
+		user_disable_single_step(child);
 		wake_up_process(child);
 		break;
 
@@ -513,7 +513,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		if (!valid_signal(data))
 			break;
 		clear_tsk_thread_flag(child,TIF_SYSCALL_TRACE);
-		set_singlestep(child);
+		user_enable_single_step(child);
 		child->exit_code = data;
 		/* give it a chance to run. */
 		wake_up_process(child);
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index 105d1534eaf4..fe75422f034b 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -140,6 +140,13 @@ enum {
 
 #ifdef __KERNEL__
 
+/*
+ * These are defined as per linux/ptrace.h, which see.
+ */
+#define arch_has_single_step()	(1)
+extern void user_enable_single_step(struct task_struct *);
+extern void user_disable_single_step(struct task_struct *);
+
 struct user_desc;
 extern int do_get_thread_area(struct task_struct *p, int idx,
 			      struct user_desc __user *info);
-- 
cgit v1.2.3-59-g8ed1b


From fa1e03eae2f38e7b38095301b043da9c274d2284 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:50 +0100
Subject: x86: single_step moved

This moves the single-step support code from ptrace_64.c into a new file
step.c, verbatim.  This paves the way for consolidating this code between
64-bit and 32-bit versions.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile_64 |   2 +
 arch/x86/kernel/ptrace_64.c | 134 ------------------------------------------
 arch/x86/kernel/step.c      | 140 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 142 insertions(+), 134 deletions(-)
 create mode 100644 arch/x86/kernel/step.c

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index e1ba82e582a8..d908f0175e76 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -13,6 +13,8 @@ obj-y	:= process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
 		pci-dma_64.o pci-nommu_64.o alternative.o hpet.o tsc_64.o bugs_64.o \
 		i8253.o io_delay.o rtc.o
 
+obj-y				+= step.o
+
 obj-$(CONFIG_IA32_EMULATION)	+= tls.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-y				+= cpu/
diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index 7373a99facf3..4abfbced9b26 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -80,140 +80,6 @@ static inline long put_stack_long(struct task_struct *task, int offset,
 	return 0;
 }
 
-#define LDT_SEGMENT 4
-
-unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *regs)
-{
-	unsigned long addr, seg;
-
-	addr = regs->rip;
-	seg = regs->cs & 0xffff;
-
-	/*
-	 * We'll assume that the code segments in the GDT
-	 * are all zero-based. That is largely true: the
-	 * TLS segments are used for data, and the PNPBIOS
-	 * and APM bios ones we just ignore here.
-	 */
-	if (seg & LDT_SEGMENT) {
-		u32 *desc;
-		unsigned long base;
-
-		seg &= ~7UL;
-
-		mutex_lock(&child->mm->context.lock);
-		if (unlikely((seg >> 3) >= child->mm->context.size))
-			addr = -1L; /* bogus selector, access would fault */
-		else {
-			desc = child->mm->context.ldt + seg;
-			base = ((desc[0] >> 16) |
-				((desc[1] & 0xff) << 16) |
-				(desc[1] & 0xff000000));
-
-			/* 16-bit code segment? */
-			if (!((desc[1] >> 22) & 1))
-				addr &= 0xffff;
-			addr += base;
-		}
-		mutex_unlock(&child->mm->context.lock);
-	}
-
-	return addr;
-}
-
-static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
-{
-	int i, copied;
-	unsigned char opcode[15];
-	unsigned long addr = convert_rip_to_linear(child, regs);
-
-	copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
-	for (i = 0; i < copied; i++) {
-		switch (opcode[i]) {
-		/* popf and iret */
-		case 0x9d: case 0xcf:
-			return 1;
-
-			/* CHECKME: 64 65 */
-
-		/* opcode and address size prefixes */
-		case 0x66: case 0x67:
-			continue;
-		/* irrelevant prefixes (segment overrides and repeats) */
-		case 0x26: case 0x2e:
-		case 0x36: case 0x3e:
-		case 0x64: case 0x65:
-		case 0xf2: case 0xf3:
-			continue;
-
-		case 0x40 ... 0x4f:
-			if (regs->cs != __USER_CS)
-				/* 32-bit mode: register increment */
-				return 0;
-			/* 64-bit mode: REX prefix */
-			continue;
-
-			/* CHECKME: f2, f3 */
-
-		/*
-		 * pushf: NOTE! We should probably not let
-		 * the user see the TF bit being set. But
-		 * it's more pain than it's worth to avoid
-		 * it, and a debugger could emulate this
-		 * all in user space if it _really_ cares.
-		 */
-		case 0x9c:
-		default:
-			return 0;
-		}
-	}
-	return 0;
-}
-
-void user_enable_single_step(struct task_struct *child)
-{
-	struct pt_regs *regs = task_pt_regs(child);
-
-	/*
-	 * Always set TIF_SINGLESTEP - this guarantees that
-	 * we single-step system calls etc..  This will also
-	 * cause us to set TF when returning to user mode.
-	 */
-	set_tsk_thread_flag(child, TIF_SINGLESTEP);
-
-	/*
-	 * If TF was already set, don't do anything else
-	 */
-	if (regs->eflags & X86_EFLAGS_TF)
-		return;
-
-	/* Set TF on the kernel stack.. */
-	regs->eflags |= X86_EFLAGS_TF;
-
-	/*
-	 * ..but if TF is changed by the instruction we will trace,
-	 * don't mark it as being "us" that set it, so that we
-	 * won't clear it by hand later.
-	 */
-	if (is_setting_trap_flag(child, regs))
-		return;
-
-	child->ptrace |= PT_DTRACE;
-}
-
-void user_disable_single_step(struct task_struct *child)
-{
-	/* Always clear TIF_SINGLESTEP... */
-	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
-
-	/* But touch TF only if it was set by us.. */
-	if (child->ptrace & PT_DTRACE) {
-		struct pt_regs *regs = task_pt_regs(child);
-		regs->eflags &= ~X86_EFLAGS_TF;
-		child->ptrace &= ~PT_DTRACE;
-	}
-}
-
 /*
  * Called by kernel/ptrace.c when detaching..
  *
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
new file mode 100644
index 000000000000..cb3c8bc2939a
--- /dev/null
+++ b/arch/x86/kernel/step.c
@@ -0,0 +1,140 @@
+/*
+ * x86 single-step support code, common to 32-bit and 64-bit.
+ */
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/ptrace.h>
+
+#define LDT_SEGMENT 4
+
+unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *regs)
+{
+	unsigned long addr, seg;
+
+	addr = regs->rip;
+	seg = regs->cs & 0xffff;
+
+	/*
+	 * We'll assume that the code segments in the GDT
+	 * are all zero-based. That is largely true: the
+	 * TLS segments are used for data, and the PNPBIOS
+	 * and APM bios ones we just ignore here.
+	 */
+	if (seg & LDT_SEGMENT) {
+		u32 *desc;
+		unsigned long base;
+
+		seg &= ~7UL;
+
+		mutex_lock(&child->mm->context.lock);
+		if (unlikely((seg >> 3) >= child->mm->context.size))
+			addr = -1L; /* bogus selector, access would fault */
+		else {
+			desc = child->mm->context.ldt + seg;
+			base = ((desc[0] >> 16) |
+				((desc[1] & 0xff) << 16) |
+				(desc[1] & 0xff000000));
+
+			/* 16-bit code segment? */
+			if (!((desc[1] >> 22) & 1))
+				addr &= 0xffff;
+			addr += base;
+		}
+		mutex_unlock(&child->mm->context.lock);
+	}
+
+	return addr;
+}
+
+static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
+{
+	int i, copied;
+	unsigned char opcode[15];
+	unsigned long addr = convert_rip_to_linear(child, regs);
+
+	copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
+	for (i = 0; i < copied; i++) {
+		switch (opcode[i]) {
+		/* popf and iret */
+		case 0x9d: case 0xcf:
+			return 1;
+
+			/* CHECKME: 64 65 */
+
+		/* opcode and address size prefixes */
+		case 0x66: case 0x67:
+			continue;
+		/* irrelevant prefixes (segment overrides and repeats) */
+		case 0x26: case 0x2e:
+		case 0x36: case 0x3e:
+		case 0x64: case 0x65:
+		case 0xf2: case 0xf3:
+			continue;
+
+		case 0x40 ... 0x4f:
+			if (regs->cs != __USER_CS)
+				/* 32-bit mode: register increment */
+				return 0;
+			/* 64-bit mode: REX prefix */
+			continue;
+
+			/* CHECKME: f2, f3 */
+
+		/*
+		 * pushf: NOTE! We should probably not let
+		 * the user see the TF bit being set. But
+		 * it's more pain than it's worth to avoid
+		 * it, and a debugger could emulate this
+		 * all in user space if it _really_ cares.
+		 */
+		case 0x9c:
+		default:
+			return 0;
+		}
+	}
+	return 0;
+}
+
+void user_enable_single_step(struct task_struct *child)
+{
+	struct pt_regs *regs = task_pt_regs(child);
+
+	/*
+	 * Always set TIF_SINGLESTEP - this guarantees that
+	 * we single-step system calls etc..  This will also
+	 * cause us to set TF when returning to user mode.
+	 */
+	set_tsk_thread_flag(child, TIF_SINGLESTEP);
+
+	/*
+	 * If TF was already set, don't do anything else
+	 */
+	if (regs->eflags & X86_EFLAGS_TF)
+		return;
+
+	/* Set TF on the kernel stack.. */
+	regs->eflags |= X86_EFLAGS_TF;
+
+	/*
+	 * ..but if TF is changed by the instruction we will trace,
+	 * don't mark it as being "us" that set it, so that we
+	 * won't clear it by hand later.
+	 */
+	if (is_setting_trap_flag(child, regs))
+		return;
+
+	child->ptrace |= PT_DTRACE;
+}
+
+void user_disable_single_step(struct task_struct *child)
+{
+	/* Always clear TIF_SINGLESTEP... */
+	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
+
+	/* But touch TF only if it was set by us.. */
+	if (child->ptrace & PT_DTRACE) {
+		struct pt_regs *regs = task_pt_regs(child);
+		regs->eflags &= ~X86_EFLAGS_TF;
+		child->ptrace &= ~PT_DTRACE;
+	}
+}
-- 
cgit v1.2.3-59-g8ed1b


From 3f80c1adc900769f2070432419da3b5ddbf066fc Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:50 +0100
Subject: x86: single_step segment macros

This cleans up the single-step code to use the asm/segment.h macros
for segment selector magic bits, rather than its own constant.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/step.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index cb3c8bc2939a..3b70f20f21f9 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -5,8 +5,6 @@
 #include <linux/mm.h>
 #include <linux/ptrace.h>
 
-#define LDT_SEGMENT 4
-
 unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *regs)
 {
 	unsigned long addr, seg;
@@ -20,7 +18,7 @@ unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *r
 	 * TLS segments are used for data, and the PNPBIOS
 	 * and APM bios ones we just ignore here.
 	 */
-	if (seg & LDT_SEGMENT) {
+	if ((seg & SEGMENT_TI_MASK) == SEGMENT_LDT) {
 		u32 *desc;
 		unsigned long base;
 
-- 
cgit v1.2.3-59-g8ed1b


From 5f76cb1f6c42e7575256595f85b8b97d84ec669e Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:50 +0100
Subject: x86: single_step 0xf0

This fixes the 64-bit single-step handling code's instruction
decoder to grok the 0xf0 (lock) prefix, which the 32-bit code
already does correctly.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/step.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 3b70f20f21f9..6a93b93f91f1 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -66,7 +66,7 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
 		case 0x26: case 0x2e:
 		case 0x36: case 0x3e:
 		case 0x64: case 0x65:
-		case 0xf2: case 0xf3:
+		case 0xf0: case 0xf2: case 0xf3:
 			continue;
 
 		case 0x40 ... 0x4f:
-- 
cgit v1.2.3-59-g8ed1b


From 7122ec8158b0f88befd94f4da8feae2c8d08d1b4 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:50 +0100
Subject: x86: single_step: share code

This removes the single-step code from ptrace_32.c and uses the step.c code
shared with the 64-bit kernel.  The two versions of the code were nearly
identical already, so the shared code has only a couple of simple #ifdef's.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile_32 |   1 +
 arch/x86/kernel/ptrace_32.c | 125 --------------------------------------------
 arch/x86/kernel/step.c      |  14 +++++
 3 files changed, 15 insertions(+), 125 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index 9a6577a746ba..20e23c4c18b6 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -11,6 +11,7 @@ obj-y	:= process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
 		quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o io_delay.o rtc.o
 
 obj-y				+= tls.o
+obj-y				+= step.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-y				+= cpu/
 obj-y				+= acpi/
diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index 1402a54ef61f..b73960885c3f 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -137,131 +137,6 @@ static unsigned long getreg(struct task_struct *child,
 	return retval;
 }
 
-#define LDT_SEGMENT 4
-
-static unsigned long convert_eip_to_linear(struct task_struct *child, struct pt_regs *regs)
-{
-	unsigned long addr, seg;
-
-	addr = regs->eip;
-	seg = regs->xcs & 0xffff;
-	if (regs->eflags & VM_MASK) {
-		addr = (addr & 0xffff) + (seg << 4);
-		return addr;
-	}
-
-	/*
-	 * We'll assume that the code segments in the GDT
-	 * are all zero-based. That is largely true: the
-	 * TLS segments are used for data, and the PNPBIOS
-	 * and APM bios ones we just ignore here.
-	 */
-	if (seg & LDT_SEGMENT) {
-		u32 *desc;
-		unsigned long base;
-
-		seg &= ~7UL;
-
-		mutex_lock(&child->mm->context.lock);
-		if (unlikely((seg >> 3) >= child->mm->context.size))
-			addr = -1L; /* bogus selector, access would fault */
-		else {
-			desc = child->mm->context.ldt + seg;
-			base = ((desc[0] >> 16) |
-				((desc[1] & 0xff) << 16) |
-				(desc[1] & 0xff000000));
-
-			/* 16-bit code segment? */
-			if (!((desc[1] >> 22) & 1))
-				addr &= 0xffff;
-			addr += base;
-		}
-		mutex_unlock(&child->mm->context.lock);
-	}
-	return addr;
-}
-
-static inline int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
-{
-	int i, copied;
-	unsigned char opcode[15];
-	unsigned long addr = convert_eip_to_linear(child, regs);
-
-	copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
-	for (i = 0; i < copied; i++) {
-		switch (opcode[i]) {
-		/* popf and iret */
-		case 0x9d: case 0xcf:
-			return 1;
-		/* opcode and address size prefixes */
-		case 0x66: case 0x67:
-			continue;
-		/* irrelevant prefixes (segment overrides and repeats) */
-		case 0x26: case 0x2e:
-		case 0x36: case 0x3e:
-		case 0x64: case 0x65:
-		case 0xf0: case 0xf2: case 0xf3:
-			continue;
-
-		/*
-		 * pushf: NOTE! We should probably not let
-		 * the user see the TF bit being set. But
-		 * it's more pain than it's worth to avoid
-		 * it, and a debugger could emulate this
-		 * all in user space if it _really_ cares.
-		 */
-		case 0x9c:
-		default:
-			return 0;
-		}
-	}
-	return 0;
-}
-
-void user_enable_single_step(struct task_struct *child)
-{
-	struct pt_regs *regs = get_child_regs(child);
-
-	/*
-	 * Always set TIF_SINGLESTEP - this guarantees that 
-	 * we single-step system calls etc..  This will also
-	 * cause us to set TF when returning to user mode.
-	 */
-	set_tsk_thread_flag(child, TIF_SINGLESTEP);
-
-	/*
-	 * If TF was already set, don't do anything else
-	 */
-	if (regs->eflags & X86_EFLAGS_TF)
-		return;
-
-	/* Set TF on the kernel stack.. */
-	regs->eflags |= X86_EFLAGS_TF;
-
-	/*
-	 * ..but if TF is changed by the instruction we will trace,
-	 * don't mark it as being "us" that set it, so that we
-	 * won't clear it by hand later.
-	 */
-	if (is_setting_trap_flag(child, regs))
-		return;
-	
-	child->ptrace |= PT_DTRACE;
-}
-
-void user_disable_single_step(struct task_struct *child)
-{
-	/* Always clear TIF_SINGLESTEP... */
-	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
-
-	/* But touch TF only if it was set by us.. */
-	if (child->ptrace & PT_DTRACE) {
-		struct pt_regs *regs = get_child_regs(child);
-		regs->eflags &= ~X86_EFLAGS_TF;
-		child->ptrace &= ~PT_DTRACE;
-	}
-}
-
 /*
  * Called by kernel/ptrace.c when detaching..
  *
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 6a93b93f91f1..6732272e3479 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -5,12 +5,24 @@
 #include <linux/mm.h>
 #include <linux/ptrace.h>
 
+#ifdef CONFIG_X86_32
+static
+#endif
 unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *regs)
 {
 	unsigned long addr, seg;
 
+#ifdef CONFIG_X86_64
 	addr = regs->rip;
 	seg = regs->cs & 0xffff;
+#else
+	addr = regs->eip;
+	seg = regs->xcs & 0xffff;
+	if (regs->eflags & X86_EFLAGS_VM) {
+		addr = (addr & 0xffff) + (seg << 4);
+		return addr;
+	}
+#endif
 
 	/*
 	 * We'll assume that the code segments in the GDT
@@ -69,12 +81,14 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
 		case 0xf0: case 0xf2: case 0xf3:
 			continue;
 
+#ifdef CONFIG_X86_64
 		case 0x40 ... 0x4f:
 			if (regs->cs != __USER_CS)
 				/* 32-bit mode: register increment */
 				return 0;
 			/* 64-bit mode: REX prefix */
 			continue;
+#endif
 
 			/* CHECKME: f2, f3 */
 
-- 
cgit v1.2.3-59-g8ed1b


From e1f287735c1e58c653b516931b5d3dd899edcb77 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:50 +0100
Subject: x86 single_step: TIF_FORCED_TF

This changes the single-step support to use a new thread_info flag
TIF_FORCED_TF instead of the PT_DTRACE flag in task_struct.ptrace.
This keeps arch implementation uses out of this non-arch field.

This changes the ptrace access to eflags to mask TF and maintain
the TIF_FORCED_TF flag directly if userland sets TF, instead of
relying on ptrace_signal_deliver.  The 64-bit and 32-bit kernels
are harmonized on this same behavior.  The ptrace_signal_deliver
approach works now, but this change makes the low-level register
access code reliable when called from different contexts than a
ptrace stop, which will be possible in the future.

The 64-bit do_debug exception handler is also changed not to clear TF
from user-mode registers.  This matches the 32-bit kernel's behavior.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ptrace32.c         | 20 ++++++++++++++++++--
 arch/x86/kernel/process_32.c     |  3 ---
 arch/x86/kernel/process_64.c     |  5 -----
 arch/x86/kernel/ptrace_32.c      | 17 +++++++++++++++++
 arch/x86/kernel/ptrace_64.c      | 20 ++++++++++++++++++++
 arch/x86/kernel/signal_32.c      | 12 +++++-------
 arch/x86/kernel/signal_64.c      | 14 +++++---------
 arch/x86/kernel/step.c           |  9 +++------
 arch/x86/kernel/traps_64.c       | 23 +++++------------------
 include/asm-x86/signal.h         | 11 ++---------
 include/asm-x86/thread_info_32.h |  2 ++
 include/asm-x86/thread_info_64.h |  2 ++
 12 files changed, 79 insertions(+), 59 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ptrace32.c b/arch/x86/ia32/ptrace32.c
index 9d754b640205..5dee33417313 100644
--- a/arch/x86/ia32/ptrace32.c
+++ b/arch/x86/ia32/ptrace32.c
@@ -89,6 +89,15 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 		__u64 *flags = &stack[offsetof(struct pt_regs, eflags)/8];
 
 		val &= FLAG_MASK;
+		/*
+		 * If the user value contains TF, mark that
+		 * it was not "us" (the debugger) that set it.
+		 * If not, make sure it stays set if we had.
+		 */
+		if (val & X86_EFLAGS_TF)
+			clear_tsk_thread_flag(child, TIF_FORCED_TF);
+		else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
+			val |= X86_EFLAGS_TF;
 		*flags = val | (*flags & ~FLAG_MASK);
 		break;
 	}
@@ -179,9 +188,17 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 	R32(eax, rax);
 	R32(orig_eax, orig_rax);
 	R32(eip, rip);
-	R32(eflags, eflags);
 	R32(esp, rsp);
 
+	case offsetof(struct user32, regs.eflags):
+		/*
+		 * If the debugger set TF, hide it from the readout.
+		 */
+		*val = stack[offsetof(struct pt_regs, eflags)/8];
+		if (test_tsk_thread_flag(child, TIF_FORCED_TF))
+			*val &= ~X86_EFLAGS_TF;
+		break;
+
 	case offsetof(struct user32, u_debugreg[0]):
 		*val = child->thread.debugreg0;
 		break;
@@ -425,4 +442,3 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 	put_task_struct(child);
 	return ret;
 }
-
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 4d66a56280d3..d9905c9d0fd5 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -817,9 +817,6 @@ asmlinkage int sys_execve(struct pt_regs regs)
 			(char __user * __user *) regs.edx,
 			&regs);
 	if (error == 0) {
-		task_lock(current);
-		current->ptrace &= ~PT_DTRACE;
-		task_unlock(current);
 		/* Make sure we don't return using sysenter.. */
 		set_thread_flag(TIF_IRET);
 	}
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index ccc9d68d5a58..f7356e5517f6 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -709,11 +709,6 @@ long sys_execve(char __user *name, char __user * __user *argv,
 	if (IS_ERR(filename)) 
 		return error;
 	error = do_execve(filename, argv, envp, &regs); 
-	if (error == 0) {
-		task_lock(current);
-		current->ptrace &= ~PT_DTRACE;
-		task_unlock(current);
-	}
 	putname(filename);
 	return error;
 }
diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index b73960885c3f..bc7fd802dcc7 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -104,6 +104,15 @@ static int putreg(struct task_struct *child,
 			break;
 		case EFL:
 			value &= FLAG_MASK;
+			/*
+			 * If the user value contains TF, mark that
+			 * it was not "us" (the debugger) that set it.
+			 * If not, make sure it stays set if we had.
+			 */
+			if (value & X86_EFLAGS_TF)
+				clear_tsk_thread_flag(child, TIF_FORCED_TF);
+			else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
+				value |= X86_EFLAGS_TF;
 			value |= get_stack_long(child, EFL_OFFSET) & ~FLAG_MASK;
 			break;
 	}
@@ -119,6 +128,14 @@ static unsigned long getreg(struct task_struct *child,
 	unsigned long retval = ~0UL;
 
 	switch (regno >> 2) {
+		case EFL:
+			/*
+			 * If the debugger set TF, hide it from the readout.
+			 */
+			retval = get_stack_long(child, EFL_OFFSET);
+			if (test_tsk_thread_flag(child, TIF_FORCED_TF))
+				retval &= ~X86_EFLAGS_TF;
+			break;
 		case GS:
 			retval = child->thread.gs;
 			break;
diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index 4abfbced9b26..035d53e99c57 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -143,6 +143,15 @@ static int putreg(struct task_struct *child,
 			return 0;
 		case offsetof(struct user_regs_struct, eflags):
 			value &= FLAG_MASK;
+			/*
+			 * If the user value contains TF, mark that
+			 * it was not "us" (the debugger) that set it.
+			 * If not, make sure it stays set if we had.
+			 */
+			if (value & X86_EFLAGS_TF)
+				clear_tsk_thread_flag(child, TIF_FORCED_TF);
+			else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
+				value |= X86_EFLAGS_TF;
 			tmp = get_stack_long(child, EFL_OFFSET); 
 			tmp &= ~FLAG_MASK; 
 			value |= tmp;
@@ -189,6 +198,17 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 			if (child->thread.gsindex != GS_TLS_SEL)
 				return 0;
 			return get_desc_base(&child->thread.tls_array[GS_TLS]);
+		case offsetof(struct user_regs_struct, eflags):
+			/*
+			 * If the debugger set TF, hide it from the readout.
+			 */
+			regno = regno - sizeof(struct pt_regs);
+			val = get_stack_long(child, regno);
+			if (test_tsk_thread_flag(child, TIF_IA32))
+				val &= 0xffffffff;
+			if (test_tsk_thread_flag(child, TIF_FORCED_TF))
+				val &= ~X86_EFLAGS_TF;
+			return val;
 		default:
 			regno = regno - sizeof(struct pt_regs);
 			val = get_stack_long(child, regno);
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 1ac53e9a0859..0a7c812212c9 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -545,14 +545,12 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 	}
 
 	/*
-	 * If TF is set due to a debugger (PT_DTRACE), clear the TF flag so
-	 * that register information in the sigcontext is correct.
+	 * If TF is set due to a debugger (TIF_FORCED_TF), clear the TF
+	 * flag so that register information in the sigcontext is correct.
 	 */
-	if (unlikely(regs->eflags & TF_MASK)
-	    && likely(current->ptrace & PT_DTRACE)) {
-		current->ptrace &= ~PT_DTRACE;
-		regs->eflags &= ~TF_MASK;
-	}
+	if (unlikely(regs->eflags & X86_EFLAGS_TF) &&
+	    likely(test_and_clear_thread_flag(TIF_FORCED_TF)))
+		regs->eflags &= ~X86_EFLAGS_TF;
 
 	/* Set up the stack frame */
 	if (ka->sa.sa_flags & SA_SIGINFO)
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index 38d806467c0f..ab0178ebe00a 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -349,16 +349,12 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 	}
 
 	/*
-	 * If TF is set due to a debugger (PT_DTRACE), clear the TF
-	 * flag so that register information in the sigcontext is
-	 * correct.
+	 * If TF is set due to a debugger (TIF_FORCED_TF), clear the TF
+	 * flag so that register information in the sigcontext is correct.
 	 */
-	if (unlikely(regs->eflags & TF_MASK)) {
-		if (likely(current->ptrace & PT_DTRACE)) {
-			current->ptrace &= ~PT_DTRACE;
-			regs->eflags &= ~TF_MASK;
-		}
-	}
+	if (unlikely(regs->eflags & X86_EFLAGS_TF) &&
+	    likely(test_and_clear_thread_flag(TIF_FORCED_TF)))
+		regs->eflags &= ~X86_EFLAGS_TF;
 
 #ifdef CONFIG_IA32_EMULATION
 	if (test_thread_flag(TIF_IA32)) {
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 6732272e3479..243bff650ca5 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -135,7 +135,7 @@ void user_enable_single_step(struct task_struct *child)
 	if (is_setting_trap_flag(child, regs))
 		return;
 
-	child->ptrace |= PT_DTRACE;
+	set_tsk_thread_flag(child, TIF_FORCED_TF);
 }
 
 void user_disable_single_step(struct task_struct *child)
@@ -144,9 +144,6 @@ void user_disable_single_step(struct task_struct *child)
 	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
 
 	/* But touch TF only if it was set by us.. */
-	if (child->ptrace & PT_DTRACE) {
-		struct pt_regs *regs = task_pt_regs(child);
-		regs->eflags &= ~X86_EFLAGS_TF;
-		child->ptrace &= ~PT_DTRACE;
-	}
+	if (test_and_clear_tsk_thread_flag(child, TIF_FORCED_TF))
+		task_pt_regs(child)->eflags &= ~X86_EFLAGS_TF;
 }
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index aa248d754533..874aca397b02 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -865,27 +865,14 @@ asmlinkage void __kprobes do_debug(struct pt_regs * regs,
 
 	tsk->thread.debugreg6 = condition;
 
-	/* Mask out spurious TF errors due to lazy TF clearing */
+
+	/*
+	 * Single-stepping through TF: make sure we ignore any events in
+	 * kernel space (but re-enable TF when returning to user mode).
+	 */
 	if (condition & DR_STEP) {
-		/*
-		 * The TF error should be masked out only if the current
-		 * process is not traced and if the TRAP flag has been set
-		 * previously by a tracing process (condition detected by
-		 * the PT_DTRACE flag); remember that the i386 TRAP flag
-		 * can be modified by the process itself in user mode,
-		 * allowing programs to debug themselves without the ptrace()
-		 * interface.
-		 */
                 if (!user_mode(regs))
                        goto clear_TF_reenable;
-		/*
-		 * Was the TF flag set by a debugger? If so, clear it now,
-		 * so that register information is correct.
-		 */
-		if (tsk->ptrace & PT_DTRACE) {
-			regs->eflags &= ~TF_MASK;
-			tsk->ptrace &= ~PT_DTRACE;
-		}
 	}
 
 	/* Ok, finally something we can handle */
diff --git a/include/asm-x86/signal.h b/include/asm-x86/signal.h
index 987a422a2c78..aee7eca585ab 100644
--- a/include/asm-x86/signal.h
+++ b/include/asm-x86/signal.h
@@ -245,21 +245,14 @@ static __inline__ int sigfindinword(unsigned long word)
 
 struct pt_regs;
 
-#define ptrace_signal_deliver(regs, cookie)		\
-	do {						\
-		if (current->ptrace & PT_DTRACE) {	\
-			current->ptrace &= ~PT_DTRACE;	\
-			(regs)->eflags &= ~TF_MASK;	\
-		}					\
-	} while (0)
-
 #else /* __i386__ */
 
 #undef __HAVE_ARCH_SIG_BITOPS
 
+#endif /* !__i386__ */
+
 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
 
-#endif /* !__i386__ */
 #endif /* __KERNEL__ */
 #endif /* __ASSEMBLY__ */
 
diff --git a/include/asm-x86/thread_info_32.h b/include/asm-x86/thread_info_32.h
index a516e9192f11..009ecc6ad38b 100644
--- a/include/asm-x86/thread_info_32.h
+++ b/include/asm-x86/thread_info_32.h
@@ -138,6 +138,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_IO_BITMAP		18	/* uses I/O bitmap */
 #define TIF_FREEZE		19	/* is freezing for suspend */
 #define TIF_NOTSC		20	/* TSC is not accessible in userland */
+#define TIF_FORCED_TF		21	/* true if TF in eflags artificially */
 
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
@@ -153,6 +154,7 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_IO_BITMAP		(1<<TIF_IO_BITMAP)
 #define _TIF_FREEZE		(1<<TIF_FREEZE)
 #define _TIF_NOTSC		(1<<TIF_NOTSC)
+#define _TIF_FORCED_TF		(1<<TIF_FORCED_TF)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK \
diff --git a/include/asm-x86/thread_info_64.h b/include/asm-x86/thread_info_64.h
index c8e7736fc792..e0f41b3deced 100644
--- a/include/asm-x86/thread_info_64.h
+++ b/include/asm-x86/thread_info_64.h
@@ -121,6 +121,7 @@ static inline struct thread_info *stack_thread_info(void)
 #define TIF_DEBUG		21	/* uses debug registers */
 #define TIF_IO_BITMAP		22	/* uses I/O bitmap */
 #define TIF_FREEZE		23	/* is freezing for suspend */
+#define TIF_FORCED_TF		24	/* true if TF in eflags artificially */
 
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
@@ -138,6 +139,7 @@ static inline struct thread_info *stack_thread_info(void)
 #define _TIF_DEBUG		(1<<TIF_DEBUG)
 #define _TIF_IO_BITMAP		(1<<TIF_IO_BITMAP)
 #define _TIF_FREEZE		(1<<TIF_FREEZE)
+#define _TIF_FORCED_TF		(1<<TIF_FORCED_TF)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK \
-- 
cgit v1.2.3-59-g8ed1b


From 18982c158f9c255d437713e63a93270d07408674 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:51 +0100
Subject: x86-64: ptrace generic resume

This removes the handling for PTRACE_CONT et al from the 64-bit
ptrace code, so it uses the new generic code via ptrace_request.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_64.c | 45 ---------------------------------------------
 1 file changed, 45 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index 035d53e99c57..b129b1fbb5d9 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -334,23 +334,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		}
 		break;
 	}
-	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
-	case PTRACE_CONT:    /* restart after signal. */
-
-		ret = -EIO;
-		if (!valid_signal(data))
-			break;
-		if (request == PTRACE_SYSCALL)
-			set_tsk_thread_flag(child,TIF_SYSCALL_TRACE);
-		else
-			clear_tsk_thread_flag(child,TIF_SYSCALL_TRACE);
-		clear_tsk_thread_flag(child, TIF_SINGLESTEP);
-		child->exit_code = data;
-		/* make sure the single step bit is not set. */
-		user_disable_single_step(child);
-		wake_up_process(child);
-		ret = 0;
-		break;
 
 #ifdef CONFIG_IA32_EMULATION
 		/* This makes only sense with 32bit programs. Allow a
@@ -378,34 +361,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		ret = do_arch_prctl(child, data, addr);
 		break;
 
-/*
- * make the child exit.  Best I can do is send it a sigkill. 
- * perhaps it should be put in the status that it wants to 
- * exit.
- */
-	case PTRACE_KILL:
-		ret = 0;
-		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
-			break;
-		clear_tsk_thread_flag(child, TIF_SINGLESTEP);
-		child->exit_code = SIGKILL;
-		/* make sure the single step bit is not set. */
-		user_disable_single_step(child);
-		wake_up_process(child);
-		break;
-
-	case PTRACE_SINGLESTEP:    /* set the trap flag. */
-		ret = -EIO;
-		if (!valid_signal(data))
-			break;
-		clear_tsk_thread_flag(child,TIF_SYSCALL_TRACE);
-		user_enable_single_step(child);
-		child->exit_code = data;
-		/* give it a chance to run. */
-		wake_up_process(child);
-		ret = 0;
-		break;
-
 	case PTRACE_GETREGS: { /* Get all gp regs from the child. */
 	  	if (!access_ok(VERIFY_WRITE, (unsigned __user *)data,
 			       sizeof(struct user_regs_struct))) {
-- 
cgit v1.2.3-59-g8ed1b


From 227195d4a6185e81855f56ed9bc815cad9a39398 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:51 +0100
Subject: x86-32: ptrace generic resume

This removes the handling for PTRACE_CONT et al from the 32-bit
ptrace code, so it uses the new generic code via ptrace_request.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_32.c | 57 ---------------------------------------------
 1 file changed, 57 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index bc7fd802dcc7..bd3668c2421a 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -277,63 +277,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		  }
 		  break;
 
-	case PTRACE_SYSEMU: /* continue and stop at next syscall, which will not be executed */
-	case PTRACE_SYSCALL:	/* continue and stop at next (return from) syscall */
-	case PTRACE_CONT:	/* restart after signal. */
-		ret = -EIO;
-		if (!valid_signal(data))
-			break;
-		if (request == PTRACE_SYSEMU) {
-			set_tsk_thread_flag(child, TIF_SYSCALL_EMU);
-			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		} else if (request == PTRACE_SYSCALL) {
-			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-			clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
-		} else {
-			clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
-			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		}
-		child->exit_code = data;
-		/* make sure the single step bit is not set. */
-		user_disable_single_step(child);
-		wake_up_process(child);
-		ret = 0;
-		break;
-
-/*
- * make the child exit.  Best I can do is send it a sigkill. 
- * perhaps it should be put in the status that it wants to 
- * exit.
- */
-	case PTRACE_KILL:
-		ret = 0;
-		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
-			break;
-		child->exit_code = SIGKILL;
-		/* make sure the single step bit is not set. */
-		user_disable_single_step(child);
-		wake_up_process(child);
-		break;
-
-	case PTRACE_SYSEMU_SINGLESTEP: /* Same as SYSEMU, but singlestep if not syscall */
-	case PTRACE_SINGLESTEP:	/* set the trap flag. */
-		ret = -EIO;
-		if (!valid_signal(data))
-			break;
-
-		if (request == PTRACE_SYSEMU_SINGLESTEP)
-			set_tsk_thread_flag(child, TIF_SYSCALL_EMU);
-		else
-			clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
-
-		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		user_enable_single_step(child);
-		child->exit_code = data;
-		/* give it a chance to run. */
-		wake_up_process(child);
-		ret = 0;
-		break;
-
 	case PTRACE_GETREGS: { /* Get all gp regs from the child. */
 	  	if (!access_ok(VERIFY_WRITE, datap, FRAME_SIZE*sizeof(long))) {
 			ret = -EIO;
-- 
cgit v1.2.3-59-g8ed1b


From 2a84b0d71973692b291f03a870c4d0d13f722d79 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:51 +0100
Subject: powerpc: arch_has_single_step

This defines the new standard arch_has_single_step macro.  It makes the
existing set_single_step and clear_single_step entry points global, and
renames them to the new standard names user_enable_single_step and
user_disable_single_step, respectively.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/powerpc/kernel/ptrace.c | 12 ++++++------
 include/asm-powerpc/ptrace.h |  7 +++++++
 2 files changed, 13 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 3e17d154d0d4..b970d7971779 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -256,7 +256,7 @@ static int set_evrregs(struct task_struct *task, unsigned long *data)
 #endif /* CONFIG_SPE */
 
 
-static void set_single_step(struct task_struct *task)
+void user_enable_single_step(struct task_struct *task)
 {
 	struct pt_regs *regs = task->thread.regs;
 
@@ -271,7 +271,7 @@ static void set_single_step(struct task_struct *task)
 	set_tsk_thread_flag(task, TIF_SINGLESTEP);
 }
 
-static void clear_single_step(struct task_struct *task)
+void user_disable_single_step(struct task_struct *task)
 {
 	struct pt_regs *regs = task->thread.regs;
 
@@ -313,7 +313,7 @@ static int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
 void ptrace_disable(struct task_struct *child)
 {
 	/* make sure the single step bit is not set. */
-	clear_single_step(child);
+	user_disable_single_step(child);
 }
 
 /*
@@ -456,7 +456,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
 		child->exit_code = data;
 		/* make sure the single step bit is not set. */
-		clear_single_step(child);
+		user_disable_single_step(child);
 		wake_up_process(child);
 		ret = 0;
 		break;
@@ -473,7 +473,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 			break;
 		child->exit_code = SIGKILL;
 		/* make sure the single step bit is not set. */
-		clear_single_step(child);
+		user_disable_single_step(child);
 		wake_up_process(child);
 		break;
 	}
@@ -483,7 +483,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		if (!valid_signal(data))
 			break;
 		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		set_single_step(child);
+		user_enable_single_step(child);
 		child->exit_code = data;
 		/* give it a chance to run. */
 		wake_up_process(child);
diff --git a/include/asm-powerpc/ptrace.h b/include/asm-powerpc/ptrace.h
index 13fccc5a4119..3063363f6799 100644
--- a/include/asm-powerpc/ptrace.h
+++ b/include/asm-powerpc/ptrace.h
@@ -119,6 +119,13 @@ do {									      \
 } while (0)
 #endif /* __powerpc64__ */
 
+/*
+ * These are defined as per linux/ptrace.h, which see.
+ */
+#define arch_has_single_step()	(1)
+extern void user_enable_single_step(struct task_struct *);
+extern void user_disable_single_step(struct task_struct *);
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __KERNEL__ */
-- 
cgit v1.2.3-59-g8ed1b


From d6f4fb7558ee8138fe86e2778bc16e3794d0baa2 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:51 +0100
Subject: powerpc: ptrace generic resume

This removes the handling for PTRACE_CONT et al from the powerpc
ptrace code, so it uses the new generic code via ptrace_request.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/powerpc/kernel/ptrace.c | 46 --------------------------------------------
 1 file changed, 46 deletions(-)

(limited to 'arch')

diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index b970d7971779..8b056d2295cc 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -445,52 +445,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		break;
 	}
 
-	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
-	case PTRACE_CONT: { /* restart after signal. */
-		ret = -EIO;
-		if (!valid_signal(data))
-			break;
-		if (request == PTRACE_SYSCALL)
-			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		else
-			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		child->exit_code = data;
-		/* make sure the single step bit is not set. */
-		user_disable_single_step(child);
-		wake_up_process(child);
-		ret = 0;
-		break;
-	}
-
-/*
- * make the child exit.  Best I can do is send it a sigkill.
- * perhaps it should be put in the status that it wants to
- * exit.
- */
-	case PTRACE_KILL: {
-		ret = 0;
-		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
-			break;
-		child->exit_code = SIGKILL;
-		/* make sure the single step bit is not set. */
-		user_disable_single_step(child);
-		wake_up_process(child);
-		break;
-	}
-
-	case PTRACE_SINGLESTEP: {  /* set the trap flag. */
-		ret = -EIO;
-		if (!valid_signal(data))
-			break;
-		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		user_enable_single_step(child);
-		child->exit_code = data;
-		/* give it a chance to run. */
-		wake_up_process(child);
-		ret = 0;
-		break;
-	}
-
 	case PTRACE_GET_DEBUGREG: {
 		ret = -EINVAL;
 		/* We only support one DABR and no IABRS at the moment */
-- 
cgit v1.2.3-59-g8ed1b


From 62a97d447b511bf4f0f0aa8cdccfb9ed1c934c8b Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:52 +0100
Subject: x86-32 ptrace: use task_pt_regs

This cleans up the 32-bit ptrace code to use task_pt_regs instead of its
own redundant code that does the same thing a different way.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_32.c | 68 +++++++++++----------------------------------
 1 file changed, 16 insertions(+), 52 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index bd3668c2421a..a1425e9ad028 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -37,53 +37,20 @@
  */
 #define FLAG_MASK 0x00050dd5
 
-/*
- * Offset of eflags on child stack..
- */
-#define EFL_OFFSET offsetof(struct pt_regs, eflags)
-
-static inline struct pt_regs *get_child_regs(struct task_struct *task)
-{
-	void *stack_top = (void *)task->thread.esp0;
-	return stack_top - sizeof(struct pt_regs);
-}
-
-/*
- * This routine will get a word off of the processes privileged stack.
- * the offset is bytes into the pt_regs structure on the stack.
- * This routine assumes that all the privileged stacks are in our
- * data space.
- */   
-static inline int get_stack_long(struct task_struct *task, int offset)
+static long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
 {
-	unsigned char *stack;
-
-	stack = (unsigned char *)task->thread.esp0 - sizeof(struct pt_regs);
-	stack += offset;
-	return (*((int *)stack));
-}
-
-/*
- * This routine will put a word on the processes privileged stack.
- * the offset is bytes into the pt_regs structure on the stack.
- * This routine assumes that all the privileged stacks are in our
- * data space.
- */
-static inline int put_stack_long(struct task_struct *task, int offset,
-	unsigned long data)
-{
-	unsigned char * stack;
-
-	stack = (unsigned char *)task->thread.esp0 - sizeof(struct pt_regs);
-	stack += offset;
-	*(unsigned long *) stack = data;
-	return 0;
+	BUILD_BUG_ON(offsetof(struct pt_regs, ebx) != 0);
+	if (regno > FS)
+		--regno;
+	return &regs->ebx + regno;
 }
 
 static int putreg(struct task_struct *child,
 	unsigned long regno, unsigned long value)
 {
-	switch (regno >> 2) {
+	struct pt_regs *regs = task_pt_regs(child);
+	regno >>= 2;
+	switch (regno) {
 		case GS:
 			if (value && (value & 3) != 3)
 				return -EIO;
@@ -113,26 +80,25 @@ static int putreg(struct task_struct *child,
 				clear_tsk_thread_flag(child, TIF_FORCED_TF);
 			else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
 				value |= X86_EFLAGS_TF;
-			value |= get_stack_long(child, EFL_OFFSET) & ~FLAG_MASK;
+			value |= regs->eflags & ~FLAG_MASK;
 			break;
 	}
-	if (regno > FS*4)
-		regno -= 1*4;
-	put_stack_long(child, regno, value);
+	*pt_regs_access(regs, regno) = value;
 	return 0;
 }
 
-static unsigned long getreg(struct task_struct *child,
-	unsigned long regno)
+static unsigned long getreg(struct task_struct *child, unsigned long regno)
 {
+	struct pt_regs *regs = task_pt_regs(child);
 	unsigned long retval = ~0UL;
 
-	switch (regno >> 2) {
+	regno >>= 2;
+	switch (regno) {
 		case EFL:
 			/*
 			 * If the debugger set TF, hide it from the readout.
 			 */
-			retval = get_stack_long(child, EFL_OFFSET);
+			retval = regs->eflags;
 			if (test_tsk_thread_flag(child, TIF_FORCED_TF))
 				retval &= ~X86_EFLAGS_TF;
 			break;
@@ -147,9 +113,7 @@ static unsigned long getreg(struct task_struct *child,
 			retval = 0xffff;
 			/* fall through */
 		default:
-			if (regno > FS*4)
-				regno -= 1*4;
-			retval &= get_stack_long(child, regno);
+			retval &= *pt_regs_access(regs, regno);
 	}
 	return retval;
 }
-- 
cgit v1.2.3-59-g8ed1b


From e4aed6cc45f06acd35e3dfbbaf632c5d5aa897c0 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:52 +0100
Subject: x86-64 ptrace: use task_pt_regs

This cleans up the 64-bit ptrace code to use task_pt_regs instead of its
own redundant code that does the same thing a different way.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_64.c | 60 +++++++++------------------------------------
 1 file changed, 12 insertions(+), 48 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index b129b1fbb5d9..d0a0aeaaa0c2 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -42,44 +42,6 @@
  */
 #define FLAG_MASK 0x54dd5UL
 
-/*
- * eflags and offset of eflags on child stack..
- */
-#define EFLAGS offsetof(struct pt_regs, eflags)
-#define EFL_OFFSET ((int)(EFLAGS-sizeof(struct pt_regs)))
-
-/*
- * this routine will get a word off of the processes privileged stack. 
- * the offset is how far from the base addr as stored in the TSS.  
- * this routine assumes that all the privileged stacks are in our
- * data space.
- */   
-static inline unsigned long get_stack_long(struct task_struct *task, int offset)
-{
-	unsigned char *stack;
-
-	stack = (unsigned char *)task->thread.rsp0;
-	stack += offset;
-	return (*((unsigned long *)stack));
-}
-
-/*
- * this routine will put a word on the processes privileged stack. 
- * the offset is how far from the base addr as stored in the TSS.  
- * this routine assumes that all the privileged stacks are in our
- * data space.
- */
-static inline long put_stack_long(struct task_struct *task, int offset,
-	unsigned long data)
-{
-	unsigned char * stack;
-
-	stack = (unsigned char *) task->thread.rsp0;
-	stack += offset;
-	*(unsigned long *) stack = data;
-	return 0;
-}
-
 /*
  * Called by kernel/ptrace.c when detaching..
  *
@@ -90,11 +52,16 @@ void ptrace_disable(struct task_struct *child)
 	user_disable_single_step(child);
 }
 
+static unsigned long *pt_regs_access(struct pt_regs *regs, unsigned long offset)
+{
+	BUILD_BUG_ON(offsetof(struct pt_regs, r15) != 0);
+	return &regs->r15 + (offset / sizeof(regs->r15));
+}
+
 static int putreg(struct task_struct *child,
 	unsigned long regno, unsigned long value)
 {
-	unsigned long tmp; 
-	
+	struct pt_regs *regs = task_pt_regs(child);
 	switch (regno) {
 		case offsetof(struct user_regs_struct,fs):
 			if (value && (value & 3) != 3)
@@ -152,9 +119,7 @@ static int putreg(struct task_struct *child,
 				clear_tsk_thread_flag(child, TIF_FORCED_TF);
 			else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
 				value |= X86_EFLAGS_TF;
-			tmp = get_stack_long(child, EFL_OFFSET); 
-			tmp &= ~FLAG_MASK; 
-			value |= tmp;
+			value |= regs->eflags & ~FLAG_MASK;
 			break;
 		case offsetof(struct user_regs_struct,cs): 
 			if ((value & 3) != 3)
@@ -162,12 +127,13 @@ static int putreg(struct task_struct *child,
 			value &= 0xffff;
 			break;
 	}
-	put_stack_long(child, regno - sizeof(struct pt_regs), value);
+	*pt_regs_access(regs, regno) = value;
 	return 0;
 }
 
 static unsigned long getreg(struct task_struct *child, unsigned long regno)
 {
+	struct pt_regs *regs = task_pt_regs(child);
 	unsigned long val;
 	switch (regno) {
 		case offsetof(struct user_regs_struct, fs):
@@ -202,16 +168,14 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 			/*
 			 * If the debugger set TF, hide it from the readout.
 			 */
-			regno = regno - sizeof(struct pt_regs);
-			val = get_stack_long(child, regno);
+			val = regs->eflags;
 			if (test_tsk_thread_flag(child, TIF_IA32))
 				val &= 0xffffffff;
 			if (test_tsk_thread_flag(child, TIF_FORCED_TF))
 				val &= ~X86_EFLAGS_TF;
 			return val;
 		default:
-			regno = regno - sizeof(struct pt_regs);
-			val = get_stack_long(child, regno);
+			val = *pt_regs_access(regs, regno);
 			if (test_tsk_thread_flag(child, TIF_IA32))
 				val &= 0xffffffff;
 			return val;
-- 
cgit v1.2.3-59-g8ed1b


From 962ff3804d31a4d090bbcbd3d06a4b63e3a5b5fd Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:52 +0100
Subject: x86: x86-64 ptrace debugreg cleanup

This cleans up the 64-bit ptrace code to separate the guts of the
debug register access from the implementation of PTRACE_PEEKUSR and
PTRACE_POKEUSR.  The new functions ptrace_[gs]et_debugreg are made
global so that the ia32 code can later be changed to call them too.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_64.c | 140 +++++++++++++++++++++-----------------------
 include/asm-x86/ptrace.h    |   3 +
 2 files changed, 69 insertions(+), 74 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index d0a0aeaaa0c2..4ba66d8af717 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -183,9 +183,63 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 
 }
 
+unsigned long ptrace_get_debugreg(struct task_struct *child, int n)
+{
+	switch (n) {
+	case 0:		return child->thread.debugreg0;
+	case 1:		return child->thread.debugreg1;
+	case 2:		return child->thread.debugreg2;
+	case 3:		return child->thread.debugreg3;
+	case 6:		return child->thread.debugreg6;
+	case 7:		return child->thread.debugreg7;
+	}
+	return 0;
+}
+
+int ptrace_set_debugreg(struct task_struct *child, int n, unsigned long data)
+{
+	int i;
+
+	if (n < 4) {
+		int dsize = test_tsk_thread_flag(child, TIF_IA32) ? 3 : 7;
+		if (unlikely(data >= TASK_SIZE_OF(child) - dsize))
+			return -EIO;
+	}
+
+	switch (n) {
+	case 0:		child->thread.debugreg0 = data; break;
+	case 1:		child->thread.debugreg1 = data; break;
+	case 2:		child->thread.debugreg2 = data; break;
+	case 3:		child->thread.debugreg3 = data; break;
+
+	case 6:
+		if (data >> 32)
+			return -EIO;
+		child->thread.debugreg6 = data;
+		break;
+
+	case 7:
+		/*
+		 * See ptrace_32.c for an explanation of this awkward check.
+		 */
+		data &= ~DR_CONTROL_RESERVED;
+		for (i = 0; i < 4; i++)
+			if ((0x5554 >> ((data >> (16 + 4*i)) & 0xf)) & 1)
+				return -EIO;
+		child->thread.debugreg7 = data;
+		if (data)
+			set_tsk_thread_flag(child, TIF_DEBUG);
+		else
+			clear_tsk_thread_flag(child, TIF_DEBUG);
+		break;
+	}
+
+	return 0;
+}
+
 long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
-	long i, ret;
+	long ret;
 	unsigned ui;
 
 	switch (request) {
@@ -204,32 +258,14 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		    addr > sizeof(struct user) - 7)
 			break;
 
-		switch (addr) { 
-		case 0 ... sizeof(struct user_regs_struct) - sizeof(long):
+		tmp = 0;
+		if (addr < sizeof(struct user_regs_struct))
 			tmp = getreg(child, addr);
-			break;
-		case offsetof(struct user, u_debugreg[0]):
-			tmp = child->thread.debugreg0;
-			break;
-		case offsetof(struct user, u_debugreg[1]):
-			tmp = child->thread.debugreg1;
-			break;
-		case offsetof(struct user, u_debugreg[2]):
-			tmp = child->thread.debugreg2;
-			break;
-		case offsetof(struct user, u_debugreg[3]):
-			tmp = child->thread.debugreg3;
-			break;
-		case offsetof(struct user, u_debugreg[6]):
-			tmp = child->thread.debugreg6;
-			break;
-		case offsetof(struct user, u_debugreg[7]):
-			tmp = child->thread.debugreg7;
-			break;
-		default:
-			tmp = 0;
-			break;
+		else if (addr >= offsetof(struct user, u_debugreg[0])) {
+			addr -= offsetof(struct user, u_debugreg[0]);
+			tmp = ptrace_get_debugreg(child, addr / sizeof(long));
 		}
+
 		ret = put_user(tmp,(unsigned long __user *) data);
 		break;
 	}
@@ -241,63 +277,19 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		break;
 
 	case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
-	{
-		int dsize = test_tsk_thread_flag(child, TIF_IA32) ? 3 : 7;
 		ret = -EIO;
 		if ((addr & 7) ||
 		    addr > sizeof(struct user) - 7)
 			break;
 
-		switch (addr) { 
-		case 0 ... sizeof(struct user_regs_struct) - sizeof(long):
+		if (addr < sizeof(struct user_regs_struct))
 			ret = putreg(child, addr, data);
-			break;
-		/* Disallows to set a breakpoint into the vsyscall */
-		case offsetof(struct user, u_debugreg[0]):
-			if (data >= TASK_SIZE_OF(child) - dsize) break;
-			child->thread.debugreg0 = data;
-			ret = 0;
-			break;
-		case offsetof(struct user, u_debugreg[1]):
-			if (data >= TASK_SIZE_OF(child) - dsize) break;
-			child->thread.debugreg1 = data;
-			ret = 0;
-			break;
-		case offsetof(struct user, u_debugreg[2]):
-			if (data >= TASK_SIZE_OF(child) - dsize) break;
-			child->thread.debugreg2 = data;
-			ret = 0;
-			break;
-		case offsetof(struct user, u_debugreg[3]):
-			if (data >= TASK_SIZE_OF(child) - dsize) break;
-			child->thread.debugreg3 = data;
-			ret = 0;
-			break;
-		case offsetof(struct user, u_debugreg[6]):
-				  if (data >> 32)
-				break; 
-			child->thread.debugreg6 = data;
-			ret = 0;
-			break;
-		case offsetof(struct user, u_debugreg[7]):
-			/* See arch/i386/kernel/ptrace.c for an explanation of
-			 * this awkward check.*/
-			data &= ~DR_CONTROL_RESERVED;
-			for(i=0; i<4; i++)
-				if ((0x5554 >> ((data >> (16 + 4*i)) & 0xf)) & 1)
-					break;
-			if (i == 4) {
-			  child->thread.debugreg7 = data;
-			  if (data)
-			  	set_tsk_thread_flag(child, TIF_DEBUG);
-			  else
-			  	clear_tsk_thread_flag(child, TIF_DEBUG);
-			  ret = 0;
-		  	}
-		  break;
+		else if (addr >= offsetof(struct user, u_debugreg[0])) {
+			addr -= offsetof(struct user, u_debugreg[0]);
+			ret = ptrace_set_debugreg(child,
+						  addr / sizeof(long), data);
 		}
 		break;
-	}
 
 #ifdef CONFIG_IA32_EMULATION
 		/* This makes only sense with 32bit programs. Allow a
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index fe75422f034b..d223decd7b01 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -110,6 +110,9 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 
 struct task_struct;
 
+extern unsigned long ptrace_get_debugreg(struct task_struct *child, int n);
+extern int ptrace_set_debugreg(struct task_struct *child, int n, unsigned long);
+
 extern unsigned long
 convert_rip_to_linear(struct task_struct *child, struct pt_regs *regs);
 
-- 
cgit v1.2.3-59-g8ed1b


From d0f081758260e9221729cabbc3aba63d89b8c8d4 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:52 +0100
Subject: x86: x86-64 ia32 ptrace debugreg cleanup

This cleans up the ia32 compat ptrace code to use shared code from
native ptrace for the implementation guts of debug register access.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ptrace32.c | 63 ++++++------------------------------------------
 1 file changed, 8 insertions(+), 55 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ptrace32.c b/arch/x86/ia32/ptrace32.c
index 5dee33417313..5ababea1307a 100644
--- a/arch/x86/ia32/ptrace32.c
+++ b/arch/x86/ia32/ptrace32.c
@@ -41,7 +41,6 @@
 
 static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 {
-	int i;
 	__u64 *stack = (__u64 *)task_pt_regs(child);
 
 	switch (regno) {
@@ -102,43 +101,10 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 		break;
 	}
 
-	case offsetof(struct user32, u_debugreg[4]):
-	case offsetof(struct user32, u_debugreg[5]):
-		return -EIO;
-
-	case offsetof(struct user32, u_debugreg[0]):
-		child->thread.debugreg0 = val;
-		break;
-
-	case offsetof(struct user32, u_debugreg[1]):
-		child->thread.debugreg1 = val;
-		break;
-
-	case offsetof(struct user32, u_debugreg[2]):
-		child->thread.debugreg2 = val;
-		break;
-
-	case offsetof(struct user32, u_debugreg[3]):
-		child->thread.debugreg3 = val;
-		break;
-
-	case offsetof(struct user32, u_debugreg[6]):
-		child->thread.debugreg6 = val;
-		break;
-
-	case offsetof(struct user32, u_debugreg[7]):
-		val &= ~DR_CONTROL_RESERVED;
-		/* See arch/i386/kernel/ptrace.c for an explanation of
-		 * this awkward check.*/
-		for (i = 0; i < 4; i++)
-			if ((0x5454 >> ((val >> (16 + 4*i)) & 0xf)) & 1)
-			       return -EIO;
-		child->thread.debugreg7 = val;
-		if (val)
-			set_tsk_thread_flag(child, TIF_DEBUG);
-		else
-			clear_tsk_thread_flag(child, TIF_DEBUG);
-		break;
+	case offsetof(struct user32, u_debugreg[0]) ...
+		offsetof(struct user32, u_debugreg[7]):
+		regno -= offsetof(struct user32, u_debugreg[0]);
+		return ptrace_set_debugreg(child, regno / 4, val);
 
 	default:
 		if (regno > sizeof(struct user32) || (regno & 3))
@@ -199,23 +165,10 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 			*val &= ~X86_EFLAGS_TF;
 		break;
 
-	case offsetof(struct user32, u_debugreg[0]):
-		*val = child->thread.debugreg0;
-		break;
-	case offsetof(struct user32, u_debugreg[1]):
-		*val = child->thread.debugreg1;
-		break;
-	case offsetof(struct user32, u_debugreg[2]):
-		*val = child->thread.debugreg2;
-		break;
-	case offsetof(struct user32, u_debugreg[3]):
-		*val = child->thread.debugreg3;
-		break;
-	case offsetof(struct user32, u_debugreg[6]):
-		*val = child->thread.debugreg6;
-		break;
-	case offsetof(struct user32, u_debugreg[7]):
-		*val = child->thread.debugreg7;
+	case offsetof(struct user32, u_debugreg[0]) ...
+		offsetof(struct user32, u_debugreg[7]):
+		regno -= offsetof(struct user32, u_debugreg[0]);
+		*val = ptrace_get_debugreg(child, regno / 4);
 		break;
 
 	default:
-- 
cgit v1.2.3-59-g8ed1b


From d9771e8c50020bb1b4ca9eca9c188874ff126aa4 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:52 +0100
Subject: x86: x86-32 ptrace debugreg cleanup

This cleans up the 32-bit ptrace code to separate the guts of the
debug register access from the implementation of PTRACE_PEEKUSR and
PTRACE_POKEUSR.  The new functions ptrace_[gs]et_debugreg match the
new 64-bit entry points for parity, but they don't need to be global.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_32.c | 119 +++++++++++++++++++++++++-------------------
 1 file changed, 69 insertions(+), 50 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index a1425e9ad028..512f8412b799 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -118,6 +118,72 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 	return retval;
 }
 
+/*
+ * This function is trivial and will be inlined by the compiler.
+ * Having it separates the implementation details of debug
+ * registers from the interface details of ptrace.
+ */
+static unsigned long ptrace_get_debugreg(struct task_struct *child, int n)
+{
+	return child->thread.debugreg[n];
+}
+
+static int ptrace_set_debugreg(struct task_struct *child,
+			       int n, unsigned long data)
+{
+	if (unlikely(n == 4 || n == 5))
+		return -EIO;
+
+	if (n < 4 && unlikely(data >= TASK_SIZE - 3))
+		return -EIO;
+
+	if (n == 7) {
+		/*
+		 * Sanity-check data. Take one half-byte at once with
+		 * check = (val >> (16 + 4*i)) & 0xf. It contains the
+		 * R/Wi and LENi bits; bits 0 and 1 are R/Wi, and bits
+		 * 2 and 3 are LENi. Given a list of invalid values,
+		 * we do mask |= 1 << invalid_value, so that
+		 * (mask >> check) & 1 is a correct test for invalid
+		 * values.
+		 *
+		 * R/Wi contains the type of the breakpoint /
+		 * watchpoint, LENi contains the length of the watched
+		 * data in the watchpoint case.
+		 *
+		 * The invalid values are:
+		 * - LENi == 0x10 (undefined), so mask |= 0x0f00.
+		 * - R/Wi == 0x10 (break on I/O reads or writes), so
+		 *   mask |= 0x4444.
+		 * - R/Wi == 0x00 && LENi != 0x00, so we have mask |=
+		 *   0x1110.
+		 *
+		 * Finally, mask = 0x0f00 | 0x4444 | 0x1110 == 0x5f54.
+		 *
+		 * See the Intel Manual "System Programming Guide",
+		 * 15.2.4
+		 *
+		 * Note that LENi == 0x10 is defined on x86_64 in long
+		 * mode (i.e. even for 32-bit userspace software, but
+		 * 64-bit kernel), so the x86_64 mask value is 0x5454.
+		 * See the AMD manual no. 24593 (AMD64 System Programming)
+		 */
+		int i;
+		data &= ~DR_CONTROL_RESERVED;
+		for (i = 0; i < 4; i++)
+			if ((0x5f54 >> ((data >> (16 + 4*i)) & 0xf)) & 1)
+				return -EIO;
+		if (data)
+			set_tsk_thread_flag(child, TIF_DEBUG);
+		else
+			clear_tsk_thread_flag(child, TIF_DEBUG);
+	}
+
+	child->thread.debugreg[n] = data;
+
+	return 0;
+}
+
 /*
  * Called by kernel/ptrace.c when detaching..
  *
@@ -158,7 +224,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		   addr <= (long) &dummy->u_debugreg[7]){
 			addr -= (long) &dummy->u_debugreg[0];
 			addr = addr >> 2;
-			tmp = child->thread.debugreg[addr];
+			tmp = ptrace_get_debugreg(child, addr);
 		}
 		ret = put_user(tmp, datap);
 		break;
@@ -188,56 +254,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		  ret = -EIO;
 		  if(addr >= (long) &dummy->u_debugreg[0] &&
 		     addr <= (long) &dummy->u_debugreg[7]){
-
-			  if(addr == (long) &dummy->u_debugreg[4]) break;
-			  if(addr == (long) &dummy->u_debugreg[5]) break;
-			  if(addr < (long) &dummy->u_debugreg[4] &&
-			     ((unsigned long) data) >= TASK_SIZE-3) break;
-			  
-			  /* Sanity-check data. Take one half-byte at once with
-			   * check = (val >> (16 + 4*i)) & 0xf. It contains the
-			   * R/Wi and LENi bits; bits 0 and 1 are R/Wi, and bits
-			   * 2 and 3 are LENi. Given a list of invalid values,
-			   * we do mask |= 1 << invalid_value, so that
-			   * (mask >> check) & 1 is a correct test for invalid
-			   * values.
-			   *
-			   * R/Wi contains the type of the breakpoint /
-			   * watchpoint, LENi contains the length of the watched
-			   * data in the watchpoint case.
-			   *
-			   * The invalid values are:
-			   * - LENi == 0x10 (undefined), so mask |= 0x0f00.
-			   * - R/Wi == 0x10 (break on I/O reads or writes), so
-			   *   mask |= 0x4444.
-			   * - R/Wi == 0x00 && LENi != 0x00, so we have mask |=
-			   *   0x1110.
-			   *
-			   * Finally, mask = 0x0f00 | 0x4444 | 0x1110 == 0x5f54.
-			   *
-			   * See the Intel Manual "System Programming Guide",
-			   * 15.2.4
-			   *
-			   * Note that LENi == 0x10 is defined on x86_64 in long
-			   * mode (i.e. even for 32-bit userspace software, but
-			   * 64-bit kernel), so the x86_64 mask value is 0x5454.
-			   * See the AMD manual no. 24593 (AMD64 System
-			   * Programming)*/
-
-			  if(addr == (long) &dummy->u_debugreg[7]) {
-				  data &= ~DR_CONTROL_RESERVED;
-				  for(i=0; i<4; i++)
-					  if ((0x5f54 >> ((data >> (16 + 4*i)) & 0xf)) & 1)
-						  goto out_tsk;
-				  if (data)
-					  set_tsk_thread_flag(child, TIF_DEBUG);
-				  else
-					  clear_tsk_thread_flag(child, TIF_DEBUG);
-			  }
 			  addr -= (long) &dummy->u_debugreg;
 			  addr = addr >> 2;
-			  child->thread.debugreg[addr] = data;
-			  ret = 0;
+			  ret = ptrace_set_debugreg(child, addr, data);
 		  }
 		  break;
 
@@ -335,7 +354,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		ret = ptrace_request(child, request, addr, data);
 		break;
 	}
- out_tsk:
+
 	return ret;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 0a049bb0ab807b4a95dce9cd0b603c01c199a287 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:54 +0100
Subject: x86: debugctlmsr kconfig

This adds the (internal) Kconfig macro CONFIG_X86_DEBUGCTLMSR,
to be defined when configuring to support only hardware that
definitely supports MSR_IA32_DEBUGCTLMSR with the BTF flag.

The Intel documentation says "P6 family" and later processors all have it.
I think the Kconfig dependencies are right to have it set for those and
unset for others (i.e., when 586 and earlier are supported).

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.cpu | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index c30162202dc4..69e2ee44fdff 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -399,3 +399,7 @@ config X86_MINIMUM_CPU_FAMILY
 	default "4" if X86_32 && (X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK)
 	default "3"
 
+config X86_DEBUGCTLMSR
+	bool
+	depends on !(M586MMX || M586TSC || M586 || M486 || M386)
+	default y
-- 
cgit v1.2.3-59-g8ed1b


From 7e9916040b3020d0f36d68bb7512e3b80b623097 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:54 +0100
Subject: x86: debugctlmsr context switch

This adds low-level support for a per-thread value of MSR_IA32_DEBUGCTLMSR.
The per-thread value is switched in when TIF_DEBUGCTLMSR is set.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_32.c     | 6 +++++-
 arch/x86/kernel/process_64.c     | 3 +++
 include/asm-x86/processor_32.h   | 2 ++
 include/asm-x86/processor_64.h   | 2 ++
 include/asm-x86/thread_info_32.h | 6 ++++--
 include/asm-x86/thread_info_64.h | 4 +++-
 6 files changed, 19 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index d9905c9d0fd5..d5462f228daf 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -602,10 +602,14 @@ static noinline void
 __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
 		 struct tss_struct *tss)
 {
-	struct thread_struct *next;
+	struct thread_struct *prev, *next;
 
+	prev = &prev_p->thread;
 	next = &next_p->thread;
 
+	if (next->debugctlmsr != prev->debugctlmsr)
+		wrmsr(MSR_IA32_DEBUGCTLMSR, next->debugctlmsr, 0);
+
 	if (test_tsk_thread_flag(next_p, TIF_DEBUG)) {
 		set_debugreg(next->debugreg[0], 0);
 		set_debugreg(next->debugreg[1], 1);
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index f7356e5517f6..ae5eca17aa3c 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -555,6 +555,9 @@ static inline void __switch_to_xtra(struct task_struct *prev_p,
 	prev = &prev_p->thread,
 	next = &next_p->thread;
 
+	if (next->debugctlmsr != prev->debugctlmsr)
+		wrmsrl(MSR_IA32_DEBUGCTLMSR, next->debugctlmsr);
+
 	if (test_tsk_thread_flag(next_p, TIF_DEBUG)) {
 		loaddebug(next, 0);
 		loaddebug(next, 1);
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index 2540bf8d5724..3c67eacb3168 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -368,6 +368,8 @@ struct thread_struct {
  	unsigned long	iopl;
 /* max allowed port in the bitmap, in bytes: */
 	unsigned long	io_bitmap_max;
+/* MSR_IA32_DEBUGCTLMSR value to switch in if TIF_DEBUGCTLMSR is set.  */
+	unsigned long	debugctlmsr;
 };
 
 #define INIT_THREAD  {							\
diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h
index 20d8935d141a..e7bea4fed642 100644
--- a/include/asm-x86/processor_64.h
+++ b/include/asm-x86/processor_64.h
@@ -238,6 +238,8 @@ struct thread_struct {
 	int		ioperm;
 	unsigned long	*io_bitmap_ptr;
 	unsigned io_bitmap_max;
+/* MSR_IA32_DEBUGCTLMSR value to switch in if TIF_DEBUGCTLMSR is set.  */
+	unsigned long	debugctlmsr;
 /* cached TLS descriptors. */
 	u64 tls_array[GDT_ENTRY_TLS_ENTRIES];
 } __attribute__((aligned(16)));
diff --git a/include/asm-x86/thread_info_32.h b/include/asm-x86/thread_info_32.h
index 009ecc6ad38b..306fc80800e1 100644
--- a/include/asm-x86/thread_info_32.h
+++ b/include/asm-x86/thread_info_32.h
@@ -139,6 +139,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_FREEZE		19	/* is freezing for suspend */
 #define TIF_NOTSC		20	/* TSC is not accessible in userland */
 #define TIF_FORCED_TF		21	/* true if TF in eflags artificially */
+#define TIF_DEBUGCTLMSR		22	/* uses thread_struct.debugctlmsr */
 
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
@@ -155,6 +156,7 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_FREEZE		(1<<TIF_FREEZE)
 #define _TIF_NOTSC		(1<<TIF_NOTSC)
 #define _TIF_FORCED_TF		(1<<TIF_FORCED_TF)
+#define _TIF_DEBUGCTLMSR	(1<<TIF_DEBUGCTLMSR)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK \
@@ -164,8 +166,8 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_ALLWORK_MASK	(0x0000FFFF & ~_TIF_SECCOMP)
 
 /* flags to check in __switch_to() */
-#define _TIF_WORK_CTXSW_NEXT (_TIF_IO_BITMAP | _TIF_NOTSC | _TIF_DEBUG)
-#define _TIF_WORK_CTXSW_PREV (_TIF_IO_BITMAP | _TIF_NOTSC)
+#define _TIF_WORK_CTXSW_NEXT (_TIF_IO_BITMAP | _TIF_NOTSC | _TIF_DEBUG | _TIF_DEBUGCTLMSR)
+#define _TIF_WORK_CTXSW_PREV (_TIF_IO_BITMAP | _TIF_NOTSC | _TIF_DEBUGCTLMSR)
 
 /*
  * Thread-synchronous status.
diff --git a/include/asm-x86/thread_info_64.h b/include/asm-x86/thread_info_64.h
index e0f41b3deced..ee35fd12b541 100644
--- a/include/asm-x86/thread_info_64.h
+++ b/include/asm-x86/thread_info_64.h
@@ -122,6 +122,7 @@ static inline struct thread_info *stack_thread_info(void)
 #define TIF_IO_BITMAP		22	/* uses I/O bitmap */
 #define TIF_FREEZE		23	/* is freezing for suspend */
 #define TIF_FORCED_TF		24	/* true if TF in eflags artificially */
+#define TIF_DEBUGCTLMSR		25	/* uses thread_struct.debugctlmsr */
 
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
@@ -140,6 +141,7 @@ static inline struct thread_info *stack_thread_info(void)
 #define _TIF_IO_BITMAP		(1<<TIF_IO_BITMAP)
 #define _TIF_FREEZE		(1<<TIF_FREEZE)
 #define _TIF_FORCED_TF		(1<<TIF_FORCED_TF)
+#define _TIF_DEBUGCTLMSR	(1<<TIF_DEBUGCTLMSR)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK \
@@ -151,7 +153,7 @@ static inline struct thread_info *stack_thread_info(void)
 	(_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY|_TIF_HRTICK_RESCHED)
 
 /* flags to check in __switch_to() */
-#define _TIF_WORK_CTXSW (_TIF_DEBUG|_TIF_IO_BITMAP)
+#define _TIF_WORK_CTXSW (_TIF_DEBUG|_TIF_IO_BITMAP|_TIF_DEBUGCTLMSR)
 
 #define PREEMPT_ACTIVE     0x10000000
 
-- 
cgit v1.2.3-59-g8ed1b


From 10faa81e102e2b7695f386812055cd2ef9e44b4c Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:54 +0100
Subject: x86: debugctlmsr arch_has_block_step

This implements user-mode step-until-branch on x86 using the BTF bit
in MSR_IA32_DEBUGCTLMSR.  It's just like single-step, only less so.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/step.c     | 64 +++++++++++++++++++++++++++++++++++++++++++---
 arch/x86/kernel/traps_32.c |  6 +++++
 arch/x86/kernel/traps_64.c |  6 +++++
 include/asm-x86/ptrace.h   |  7 +++++
 4 files changed, 80 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 243bff650ca5..cf4b9dac4a05 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -107,7 +107,10 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
 	return 0;
 }
 
-void user_enable_single_step(struct task_struct *child)
+/*
+ * Enable single-stepping.  Return nonzero if user mode is not using TF itself.
+ */
+static int enable_single_step(struct task_struct *child)
 {
 	struct pt_regs *regs = task_pt_regs(child);
 
@@ -122,7 +125,7 @@ void user_enable_single_step(struct task_struct *child)
 	 * If TF was already set, don't do anything else
 	 */
 	if (regs->eflags & X86_EFLAGS_TF)
-		return;
+		return 0;
 
 	/* Set TF on the kernel stack.. */
 	regs->eflags |= X86_EFLAGS_TF;
@@ -133,13 +136,68 @@ void user_enable_single_step(struct task_struct *child)
 	 * won't clear it by hand later.
 	 */
 	if (is_setting_trap_flag(child, regs))
-		return;
+		return 0;
 
 	set_tsk_thread_flag(child, TIF_FORCED_TF);
+
+	return 1;
+}
+
+/*
+ * Install this value in MSR_IA32_DEBUGCTLMSR whenever child is running.
+ */
+static void write_debugctlmsr(struct task_struct *child, unsigned long val)
+{
+	child->thread.debugctlmsr = val;
+
+	if (child != current)
+		return;
+
+#ifdef CONFIG_X86_64
+	wrmsrl(MSR_IA32_DEBUGCTLMSR, val);
+#else
+	wrmsr(MSR_IA32_DEBUGCTLMSR, val, 0);
+#endif
+}
+
+/*
+ * Enable single or block step.
+ */
+static void enable_step(struct task_struct *child, bool block)
+{
+	/*
+	 * Make sure block stepping (BTF) is not enabled unless it should be.
+	 * Note that we don't try to worry about any is_setting_trap_flag()
+	 * instructions after the first when using block stepping.
+	 * So noone should try to use debugger block stepping in a program
+	 * that uses user-mode single stepping itself.
+	 */
+	if (enable_single_step(child) && block) {
+		set_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
+		write_debugctlmsr(child, DEBUGCTLMSR_BTF);
+	} else if (test_and_clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR)) {
+		write_debugctlmsr(child, 0);
+	}
+}
+
+void user_enable_single_step(struct task_struct *child)
+{
+	enable_step(child, 0);
+}
+
+void user_enable_block_step(struct task_struct *child)
+{
+	enable_step(child, 1);
 }
 
 void user_disable_single_step(struct task_struct *child)
 {
+	/*
+	 * Make sure block stepping (BTF) is disabled.
+	 */
+	if (test_and_clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR))
+		write_debugctlmsr(child, 0);
+
 	/* Always clear TIF_SINGLESTEP... */
 	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
 
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 02d1e1e58e81..9b0bbd508cd5 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -837,6 +837,12 @@ fastcall void __kprobes do_debug(struct pt_regs * regs, long error_code)
 
 	get_debugreg(condition, 6);
 
+	/*
+	 * The processor cleared BTF, so don't mark that we need it set.
+	 */
+	clear_tsk_thread_flag(tsk, TIF_DEBUGCTLMSR);
+	tsk->thread.debugctlmsr = 0;
+
 	if (notify_die(DIE_DEBUG, "debug", regs, condition, error_code,
 					SIGTRAP) == NOTIFY_STOP)
 		return;
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 874aca397b02..610a64d6bdf0 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -850,6 +850,12 @@ asmlinkage void __kprobes do_debug(struct pt_regs * regs,
 
 	get_debugreg(condition, 6);
 
+	/*
+	 * The processor cleared BTF, so don't mark that we need it set.
+	 */
+	clear_tsk_thread_flag(tsk, TIF_DEBUGCTLMSR);
+	tsk->thread.debugctlmsr = 0;
+
 	if (notify_die(DIE_DEBUG, "debug", regs, condition, error_code,
 						SIGTRAP) == NOTIFY_STOP)
 		return;
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index d223decd7b01..04204f359298 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -150,6 +150,13 @@ enum {
 extern void user_enable_single_step(struct task_struct *);
 extern void user_disable_single_step(struct task_struct *);
 
+extern void user_enable_block_step(struct task_struct *);
+#ifdef CONFIG_X86_DEBUGCTLMSR
+#define arch_has_block_step()	(1)
+#else
+#define arch_has_block_step()	(boot_cpu_data.x86 >= 6)
+#endif
+
 struct user_desc;
 extern int do_get_thread_area(struct task_struct *p, int idx,
 			      struct user_desc __user *info);
-- 
cgit v1.2.3-59-g8ed1b


From 1ecc798c67645e0ee6eb028cb988b71b3edf4b40 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:54 +0100
Subject: x86: debugctlmsr kprobes

This adjusts the x86 kprobes implementation to cope with per-thread
MSR_IA32_DEBUGCTLMSR being set for user mode.  I haven't delved deep
enough into the kprobes code to be really sure this covers all the
cases where the user-mode BTF setting needs to be cleared or restored.
It looks about right to me.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes_32.c | 15 +++++++++++++++
 arch/x86/kernel/kprobes_64.c | 14 ++++++++++++++
 2 files changed, 29 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes_32.c b/arch/x86/kernel/kprobes_32.c
index 3a020f79f82b..bc4a68367cd0 100644
--- a/arch/x86/kernel/kprobes_32.c
+++ b/arch/x86/kernel/kprobes_32.c
@@ -217,8 +217,21 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
 		kcb->kprobe_saved_eflags &= ~IF_MASK;
 }
 
+static __always_inline void clear_btf(void)
+{
+	if (test_thread_flag(TIF_DEBUGCTLMSR))
+		wrmsr(MSR_IA32_DEBUGCTLMSR, 0, 0);
+}
+
+static __always_inline void restore_btf(void)
+{
+	if (test_thread_flag(TIF_DEBUGCTLMSR))
+		wrmsr(MSR_IA32_DEBUGCTLMSR, current->thread.debugctlmsr, 0);
+}
+
 static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 {
+	clear_btf();
 	regs->eflags |= TF_MASK;
 	regs->eflags &= ~IF_MASK;
 	/*single step inline if the instruction is an int3*/
@@ -542,6 +555,8 @@ static void __kprobes resume_execution(struct kprobe *p,
 	regs->eip = orig_eip + (regs->eip - copy_eip);
 
 no_change:
+	restore_btf();
+
 	return;
 }
 
diff --git a/arch/x86/kernel/kprobes_64.c b/arch/x86/kernel/kprobes_64.c
index 5df19a9f9239..10d66e323c7d 100644
--- a/arch/x86/kernel/kprobes_64.c
+++ b/arch/x86/kernel/kprobes_64.c
@@ -256,8 +256,21 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
 		kcb->kprobe_saved_rflags &= ~IF_MASK;
 }
 
+static __always_inline void clear_btf(void)
+{
+	if (test_thread_flag(TIF_DEBUGCTLMSR))
+		wrmsrl(MSR_IA32_DEBUGCTLMSR, 0);
+}
+
+static __always_inline void restore_btf(void)
+{
+	if (test_thread_flag(TIF_DEBUGCTLMSR))
+		wrmsrl(MSR_IA32_DEBUGCTLMSR, current->thread.debugctlmsr);
+}
+
 static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 {
+	clear_btf();
 	regs->eflags |= TF_MASK;
 	regs->eflags &= ~IF_MASK;
 	/*single step inline if the instruction is an int3*/
@@ -527,6 +540,7 @@ static void __kprobes resume_execution(struct kprobe *p,
 
 	regs->rip = orig_rip + (regs->rip - copy_rip);
 no_change:
+	restore_btf();
 
 	return;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 0fa376e027f0bd71368e1485f863f0dff8f7c897 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:55 +0100
Subject: x86: PTRACE_SINGLEBLOCK

This adds the PTRACE_SINGLEBLOCK request on x86, matching the ia64 feature.
The implementation comes from the generic ptrace code and relies on the
low-level machine support provided by arch_has_block_step() et al.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ptrace32.c     | 1 +
 include/asm-x86/ptrace-abi.h | 2 ++
 2 files changed, 3 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/ia32/ptrace32.c b/arch/x86/ia32/ptrace32.c
index 5ababea1307a..8c6fb9d8352b 100644
--- a/arch/x86/ia32/ptrace32.c
+++ b/arch/x86/ia32/ptrace32.c
@@ -227,6 +227,7 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 	case PTRACE_KILL:
 	case PTRACE_CONT:
 	case PTRACE_SINGLESTEP:
+	case PTRACE_SINGLEBLOCK:
 	case PTRACE_DETACH:
 	case PTRACE_SYSCALL:
 	case PTRACE_OLDSETOPTIONS:
diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h
index 7524e1233833..adce6b51df2e 100644
--- a/include/asm-x86/ptrace-abi.h
+++ b/include/asm-x86/ptrace-abi.h
@@ -78,4 +78,6 @@
 # define PTRACE_SYSEMU_SINGLESTEP 32
 #endif
 
+#define PTRACE_SINGLEBLOCK	33	/* resume execution until next branch */
+
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 7bf0c23ed24b0d95a2a717f86dce1f210e16f8a5 Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:30:55 +0100
Subject: x86: prevent dereferencing non-allocated per_cpu variables

'for_each_possible_cpu(i)' when there's a _remote possibility_ of
dereferencing a non-allocated per_cpu variable involved.

All files except mm/vmstat.c are x86 arch.

Thanks to pageexec@freemail.hu for pointing this out.

Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: <pageexec@freemail.hu>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/smp_32.c     | 4 ++--
 arch/x86/kernel/smpboot_32.c | 4 ++--
 arch/x86/xen/smp.c           | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/smp_32.c b/arch/x86/kernel/smp_32.c
index fcaa026eb807..d4c01a4aca60 100644
--- a/arch/x86/kernel/smp_32.c
+++ b/arch/x86/kernel/smp_32.c
@@ -223,7 +223,7 @@ void send_IPI_mask_sequence(cpumask_t mask, int vector)
 	 */ 
 
 	local_irq_save(flags);
-	for (query_cpu = 0; query_cpu < NR_CPUS; ++query_cpu) {
+	for_each_possible_cpu(query_cpu) {
 		if (cpu_isset(query_cpu, mask)) {
 			__send_IPI_dest_field(cpu_to_logical_apicid(query_cpu),
 					      vector);
@@ -675,7 +675,7 @@ static int convert_apicid_to_cpu(int apic_id)
 {
 	int i;
 
-	for (i = 0; i < NR_CPUS; i++) {
+	for_each_possible_cpu(i) {
 		if (per_cpu(x86_cpu_to_apicid, i) == apic_id)
 			return i;
 	}
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 239ada1c499c..0bf7f20baba0 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -1090,7 +1090,7 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
 	 * Allow the user to impress friends.
 	 */
 	Dprintk("Before bogomips.\n");
-	for (cpu = 0; cpu < NR_CPUS; cpu++)
+	for_each_possible_cpu(cpu)
 		if (cpu_isset(cpu, cpu_callout_map))
 			bogosum += cpu_data(cpu).loops_per_jiffy;
 	printk(KERN_INFO
@@ -1121,7 +1121,7 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
 	 * construct cpu_sibling_map, so that we can tell sibling CPUs
 	 * efficiently.
 	 */
-	for (cpu = 0; cpu < NR_CPUS; cpu++) {
+	for_each_possible_cpu(cpu) {
 		cpus_clear(per_cpu(cpu_sibling_map, cpu));
 		cpus_clear(per_cpu(cpu_core_map, cpu));
 	}
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index c1b131bcdcbe..8e1234e14559 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -146,7 +146,7 @@ void __init xen_smp_prepare_boot_cpu(void)
 	   old memory can be recycled */
 	make_lowmem_page_readwrite(&per_cpu__gdt_page);
 
-	for (cpu = 0; cpu < NR_CPUS; cpu++) {
+	for_each_possible_cpu(cpu) {
 		cpus_clear(per_cpu(cpu_sibling_map, cpu));
 		/*
 		 * cpu_core_map lives in a per cpu area that is cleared
@@ -163,7 +163,7 @@ void __init xen_smp_prepare_cpus(unsigned int max_cpus)
 {
 	unsigned cpu;
 
-	for (cpu = 0; cpu < NR_CPUS; cpu++) {
+	for_each_possible_cpu(cpu) {
 		cpus_clear(per_cpu(cpu_sibling_map, cpu));
 		/*
 		 * cpu_core_ map will be zeroed when the per
-- 
cgit v1.2.3-59-g8ed1b


From 5548fecdff5617ba3a2f09f0e585e1ac6e1bd25c Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:30:55 +0100
Subject: x86: clean up bitops-related warnings

Add casts to appropriate places to silence spurious bitops warnings.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Andi Kleen <ak@suse.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c   | 31 ++++++++++++++++---------------
 arch/x86/kernel/smpboot_64.c |  4 ++--
 arch/x86/mm/numa_64.c        |  2 +-
 include/asm-x86/cpufeature.h |  2 +-
 include/asm-x86/numa_64.h    |  2 +-
 include/linux/thread_info.h  | 10 +++++-----
 6 files changed, 26 insertions(+), 25 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 84f66b7b4d2e..63dd39b843b5 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -661,19 +661,19 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 
 	/* Bit 31 in normal CPUID used for nonstandard 3DNow ID;
 	   3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway */
-	clear_bit(0*32+31, &c->x86_capability);
+	clear_bit(0*32+31, (unsigned long *)&c->x86_capability);
 
 	/* On C+ stepping K8 rep microcode works well for copy/memset */
 	level = cpuid_eax(1);
 	if (c->x86 == 15 && ((level >= 0x0f48 && level < 0x0f50) ||
 			     level >= 0x0f58))
-		set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
+		set_bit(X86_FEATURE_REP_GOOD, (unsigned long *)&c->x86_capability);
 	if (c->x86 == 0x10 || c->x86 == 0x11)
-		set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
+		set_bit(X86_FEATURE_REP_GOOD, (unsigned long *)&c->x86_capability);
 
 	/* Enable workaround for FXSAVE leak */
 	if (c->x86 >= 6)
-		set_bit(X86_FEATURE_FXSAVE_LEAK, &c->x86_capability);
+		set_bit(X86_FEATURE_FXSAVE_LEAK, (unsigned long *)&c->x86_capability);
 
 	level = get_model_name(c);
 	if (!level) {
@@ -689,7 +689,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 
 	/* c->x86_power is 8000_0007 edx. Bit 8 is constant TSC */
 	if (c->x86_power & (1<<8))
-		set_bit(X86_FEATURE_CONSTANT_TSC, &c->x86_capability);
+		set_bit(X86_FEATURE_CONSTANT_TSC, (unsigned long *)&c->x86_capability);
 
 	/* Multi core CPU? */
 	if (c->extended_cpuid_level >= 0x80000008)
@@ -702,14 +702,14 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 		num_cache_leaves = 3;
 
 	if (c->x86 == 0xf || c->x86 == 0x10 || c->x86 == 0x11)
-		set_bit(X86_FEATURE_K8, &c->x86_capability);
+		set_bit(X86_FEATURE_K8, (unsigned long *)&c->x86_capability);
 
 	/* RDTSC can be speculated around */
-	clear_bit(X86_FEATURE_SYNC_RDTSC, &c->x86_capability);
+	clear_bit(X86_FEATURE_SYNC_RDTSC, (unsigned long *)&c->x86_capability);
 
 	/* Family 10 doesn't support C states in MWAIT so don't use it */
 	if (c->x86 == 0x10 && !force_mwait)
-		clear_bit(X86_FEATURE_MWAIT, &c->x86_capability);
+		clear_bit(X86_FEATURE_MWAIT, (unsigned long *)&c->x86_capability);
 
 	if (amd_apic_timer_broken())
 		disable_apic_timer = 1;
@@ -811,16 +811,17 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 		unsigned eax = cpuid_eax(10);
 		/* Check for version and the number of counters */
 		if ((eax & 0xff) && (((eax>>8) & 0xff) > 1))
-			set_bit(X86_FEATURE_ARCH_PERFMON, &c->x86_capability);
+			set_bit(X86_FEATURE_ARCH_PERFMON,
+				(unsigned long *)&c->x86_capability);
 	}
 
 	if (cpu_has_ds) {
 		unsigned int l1, l2;
 		rdmsr(MSR_IA32_MISC_ENABLE, l1, l2);
 		if (!(l1 & (1<<11)))
-			set_bit(X86_FEATURE_BTS, c->x86_capability);
+			set_bit(X86_FEATURE_BTS, (unsigned long *)c->x86_capability);
 		if (!(l1 & (1<<12)))
-			set_bit(X86_FEATURE_PEBS, c->x86_capability);
+			set_bit(X86_FEATURE_PEBS, (unsigned long *)c->x86_capability);
 	}
 
 	n = c->extended_cpuid_level;
@@ -839,13 +840,13 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 		c->x86_cache_alignment = c->x86_clflush_size * 2;
 	if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
 	    (c->x86 == 0x6 && c->x86_model >= 0x0e))
-		set_bit(X86_FEATURE_CONSTANT_TSC, &c->x86_capability);
+		set_bit(X86_FEATURE_CONSTANT_TSC, (unsigned long *)&c->x86_capability);
 	if (c->x86 == 6)
-		set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
+		set_bit(X86_FEATURE_REP_GOOD, (unsigned long *)&c->x86_capability);
 	if (c->x86 == 15)
-		set_bit(X86_FEATURE_SYNC_RDTSC, &c->x86_capability);
+		set_bit(X86_FEATURE_SYNC_RDTSC, (unsigned long *)&c->x86_capability);
 	else
-		clear_bit(X86_FEATURE_SYNC_RDTSC, &c->x86_capability);
+		clear_bit(X86_FEATURE_SYNC_RDTSC, (unsigned long *)&c->x86_capability);
 	c->x86_max_cores = intel_num_cpu_cores(c);
 
 	srat_detect_node();
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index 8ac8eb620428..ac1089f2b917 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -691,7 +691,7 @@ do_rest:
 	}
 	if (boot_error) {
 		cpu_clear(cpu, cpu_callout_map); /* was set here (do_boot_cpu()) */
-		clear_bit(cpu, &cpu_initialized); /* was set by cpu_init() */
+		clear_bit(cpu, (unsigned long *)&cpu_initialized); /* was set by cpu_init() */
 		clear_node_cpumask(cpu); /* was set by numa_add_cpu */
 		cpu_clear(cpu, cpu_present_map);
 		cpu_clear(cpu, cpu_possible_map);
@@ -1036,7 +1036,7 @@ void remove_cpu_from_maps(void)
 
 	cpu_clear(cpu, cpu_callout_map);
 	cpu_clear(cpu, cpu_callin_map);
-	clear_bit(cpu, &cpu_initialized); /* was set by cpu_init() */
+	clear_bit(cpu, (unsigned long *)&cpu_initialized); /* was set by cpu_init() */
 	clear_node_cpumask(cpu);
 }
 
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 46b4b5e1a02a..848231481619 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -547,7 +547,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
 
 __cpuinit void numa_add_cpu(int cpu)
 {
-	set_bit(cpu, &node_to_cpumask_map[cpu_to_node(cpu)]);
+	set_bit(cpu, (unsigned long *)&node_to_cpumask_map[cpu_to_node(cpu)]);
 }
 
 void __cpuinit numa_set_node(int cpu, int node)
diff --git a/include/asm-x86/cpufeature.h b/include/asm-x86/cpufeature.h
index acbf6681740d..761922972f6f 100644
--- a/include/asm-x86/cpufeature.h
+++ b/include/asm-x86/cpufeature.h
@@ -124,7 +124,7 @@
 	   (((bit)>>5)==6 && (1UL<<((bit)&31) & REQUIRED_MASK6)) ||	\
 	   (((bit)>>5)==7 && (1UL<<((bit)&31) & REQUIRED_MASK7)) )	\
 	  ? 1 :								\
-	  test_bit(bit, (c)->x86_capability))
+	 test_bit(bit, (unsigned long *)(c)->x86_capability))
 #define boot_cpu_has(bit)	cpu_has(&boot_cpu_data, bit)
 
 #define cpu_has_fpu		boot_cpu_has(X86_FEATURE_FPU)
diff --git a/include/asm-x86/numa_64.h b/include/asm-x86/numa_64.h
index c3c20db1fba3..4449889bb0c0 100644
--- a/include/asm-x86/numa_64.h
+++ b/include/asm-x86/numa_64.h
@@ -32,7 +32,7 @@ extern void __init init_cpu_to_node(void);
 
 static inline void clear_node_cpumask(int cpu)
 {
-	clear_bit(cpu, &node_to_cpumask_map[cpu_to_node(cpu)]);
+	clear_bit(cpu, (unsigned long *)&node_to_cpumask_map[cpu_to_node(cpu)]);
 }
 
 #else
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index 9c4ad755d7e5..dfbdfb9836f4 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -42,27 +42,27 @@ extern long do_no_restart_syscall(struct restart_block *parm);
 
 static inline void set_ti_thread_flag(struct thread_info *ti, int flag)
 {
-	set_bit(flag,&ti->flags);
+	set_bit(flag, (unsigned long *)&ti->flags);
 }
 
 static inline void clear_ti_thread_flag(struct thread_info *ti, int flag)
 {
-	clear_bit(flag,&ti->flags);
+	clear_bit(flag, (unsigned long *)&ti->flags);
 }
 
 static inline int test_and_set_ti_thread_flag(struct thread_info *ti, int flag)
 {
-	return test_and_set_bit(flag,&ti->flags);
+	return test_and_set_bit(flag, (unsigned long *)&ti->flags);
 }
 
 static inline int test_and_clear_ti_thread_flag(struct thread_info *ti, int flag)
 {
-	return test_and_clear_bit(flag,&ti->flags);
+	return test_and_clear_bit(flag, (unsigned long *)&ti->flags);
 }
 
 static inline int test_ti_thread_flag(struct thread_info *ti, int flag)
 {
-	return test_bit(flag,&ti->flags);
+	return test_bit(flag, (unsigned long *)&ti->flags);
 }
 
 #define set_thread_flag(flag) \
-- 
cgit v1.2.3-59-g8ed1b


From 53756d3722172815f52272b28c6d5d5e9639adde Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:30:55 +0100
Subject: x86: add set/clear_cpu_cap operations

The patch to suppress bitops-related warnings added a pile of ugly
casts.  Many of these were related to the management of x86 CPU
capabilities.  Clean these up by adding specific set/clear_cpu_cap
macros, and use them consistently.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Andi Kleen <ak@suse.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/alternative.c              | 13 +++++++------
 arch/x86/kernel/apic_32.c                  |  8 ++++----
 arch/x86/kernel/apic_64.c                  |  2 +-
 arch/x86/kernel/cpu/addon_cpuid_features.c |  2 +-
 arch/x86/kernel/cpu/mcheck/mce_64.c        |  2 +-
 arch/x86/kernel/setup_32.c                 |  2 +-
 arch/x86/kernel/setup_64.c                 | 29 ++++++++++++++---------------
 arch/x86/kernel/vmi_32.c                   | 10 +++++-----
 include/asm-x86/cpufeature.h               |  5 ++++-
 9 files changed, 38 insertions(+), 35 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index d6405e0842b5..cdc43242da92 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -356,15 +356,15 @@ void alternatives_smp_switch(int smp)
 	spin_lock_irqsave(&smp_alt, flags);
 	if (smp) {
 		printk(KERN_INFO "SMP alternatives: switching to SMP code\n");
-		clear_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
-		clear_bit(X86_FEATURE_UP, cpu_data(0).x86_capability);
+		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
+		clear_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
 		list_for_each_entry(mod, &smp_alt_modules, next)
 			alternatives_smp_lock(mod->locks, mod->locks_end,
 					      mod->text, mod->text_end);
 	} else {
 		printk(KERN_INFO "SMP alternatives: switching to UP code\n");
-		set_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
-		set_bit(X86_FEATURE_UP, cpu_data(0).x86_capability);
+		set_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
+		set_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
 		list_for_each_entry(mod, &smp_alt_modules, next)
 			alternatives_smp_unlock(mod->locks, mod->locks_end,
 						mod->text, mod->text_end);
@@ -431,8 +431,9 @@ void __init alternative_instructions(void)
 	if (smp_alt_once) {
 		if (1 == num_possible_cpus()) {
 			printk(KERN_INFO "SMP alternatives: switching to UP code\n");
-			set_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
-			set_bit(X86_FEATURE_UP, cpu_data(0).x86_capability);
+			set_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
+			set_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
+
 			alternatives_smp_unlock(__smp_locks, __smp_locks_end,
 						_text, _etext);
 		}
diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 56352c11a896..1ee443a8e61b 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -1078,7 +1078,7 @@ static int __init detect_init_APIC (void)
 		printk(KERN_WARNING "Could not enable APIC!\n");
 		return -1;
 	}
-	set_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability);
+	set_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
 	mp_lapic_addr = APIC_DEFAULT_PHYS_BASE;
 
 	/* The BIOS may have set up the APIC at some other address */
@@ -1168,7 +1168,7 @@ fake_ioapic_page:
 int __init APIC_init_uniprocessor (void)
 {
 	if (enable_local_apic < 0)
-		clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability);
+		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
 
 	if (!smp_found_config && !cpu_has_apic)
 		return -1;
@@ -1180,7 +1180,7 @@ int __init APIC_init_uniprocessor (void)
 	    APIC_INTEGRATED(apic_version[boot_cpu_physical_apicid])) {
 		printk(KERN_ERR "BIOS bug, local APIC #%d not detected!...\n",
 		       boot_cpu_physical_apicid);
-		clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability);
+		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
 		return -1;
 	}
 
@@ -1536,7 +1536,7 @@ early_param("lapic", parse_lapic);
 static int __init parse_nolapic(char *arg)
 {
 	enable_local_apic = -1;
-	clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability);
+	clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
 	return 0;
 }
 early_param("nolapic", parse_nolapic);
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 027004262105..ab4ae50399fd 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -1211,7 +1211,7 @@ early_param("apic", apic_set_verbosity);
 static __init int setup_disableapic(char *str)
 {
 	disable_apic = 1;
-	clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability);
+	clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
 	return 0;
 }
 early_param("disableapic", setup_disableapic);
diff --git a/arch/x86/kernel/cpu/addon_cpuid_features.c b/arch/x86/kernel/cpu/addon_cpuid_features.c
index 3e91d3ee26ec..238468ae1993 100644
--- a/arch/x86/kernel/cpu/addon_cpuid_features.c
+++ b/arch/x86/kernel/cpu/addon_cpuid_features.c
@@ -45,6 +45,6 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c)
 			&regs[CR_ECX], &regs[CR_EDX]);
 
 		if (regs[cb->reg] & (1 << cb->bit))
-			set_bit(cb->feature, c->x86_capability);
+			set_cpu_cap(c, cb->feature);
 	}
 }
diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index 8ef6a6bfd112..3c7672c40cf4 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -80,7 +80,7 @@ void mce_log(struct mce *mce)
 			/* When the buffer fills up discard new entries. Assume
 			   that the earlier errors are the more interesting. */
 			if (entry >= MCE_LOG_LEN) {
-				set_bit(MCE_OVERFLOW, &mcelog.flags);
+				set_bit(MCE_OVERFLOW, (unsigned long *)&mcelog.flags);
 				return;
 			}
 			/* Old left over entry. Skip. */
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 32edf70d6b0d..e9ede0fc585a 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -238,7 +238,7 @@ static int __init parse_mem(char *arg)
 		return -EINVAL;
 
 	if (strcmp(arg, "nopentium") == 0) {
-		clear_bit(X86_FEATURE_PSE, boot_cpu_data.x86_capability);
+		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_PSE);
 		disable_pse = 1;
 	} else {
 		/* If the user specifies memory size, we
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 63dd39b843b5..ce4d6b52ce36 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -667,13 +667,13 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 	level = cpuid_eax(1);
 	if (c->x86 == 15 && ((level >= 0x0f48 && level < 0x0f50) ||
 			     level >= 0x0f58))
-		set_bit(X86_FEATURE_REP_GOOD, (unsigned long *)&c->x86_capability);
+		set_cpu_cap(c, X86_FEATURE_REP_GOOD);
 	if (c->x86 == 0x10 || c->x86 == 0x11)
-		set_bit(X86_FEATURE_REP_GOOD, (unsigned long *)&c->x86_capability);
+		set_cpu_cap(c, X86_FEATURE_REP_GOOD);
 
 	/* Enable workaround for FXSAVE leak */
 	if (c->x86 >= 6)
-		set_bit(X86_FEATURE_FXSAVE_LEAK, (unsigned long *)&c->x86_capability);
+		set_cpu_cap(c, X86_FEATURE_FXSAVE_LEAK);
 
 	level = get_model_name(c);
 	if (!level) {
@@ -689,7 +689,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 
 	/* c->x86_power is 8000_0007 edx. Bit 8 is constant TSC */
 	if (c->x86_power & (1<<8))
-		set_bit(X86_FEATURE_CONSTANT_TSC, (unsigned long *)&c->x86_capability);
+		set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
 
 	/* Multi core CPU? */
 	if (c->extended_cpuid_level >= 0x80000008)
@@ -702,14 +702,14 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 		num_cache_leaves = 3;
 
 	if (c->x86 == 0xf || c->x86 == 0x10 || c->x86 == 0x11)
-		set_bit(X86_FEATURE_K8, (unsigned long *)&c->x86_capability);
+		set_cpu_cap(c, X86_FEATURE_K8);
 
 	/* RDTSC can be speculated around */
-	clear_bit(X86_FEATURE_SYNC_RDTSC, (unsigned long *)&c->x86_capability);
+	clear_cpu_cap(c, X86_FEATURE_SYNC_RDTSC);
 
 	/* Family 10 doesn't support C states in MWAIT so don't use it */
 	if (c->x86 == 0x10 && !force_mwait)
-		clear_bit(X86_FEATURE_MWAIT, (unsigned long *)&c->x86_capability);
+		clear_cpu_cap(c, X86_FEATURE_MWAIT);
 
 	if (amd_apic_timer_broken())
 		disable_apic_timer = 1;
@@ -811,17 +811,16 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 		unsigned eax = cpuid_eax(10);
 		/* Check for version and the number of counters */
 		if ((eax & 0xff) && (((eax>>8) & 0xff) > 1))
-			set_bit(X86_FEATURE_ARCH_PERFMON,
-				(unsigned long *)&c->x86_capability);
+			set_cpu_cap(c, X86_FEATURE_ARCH_PERFMON);
 	}
 
 	if (cpu_has_ds) {
 		unsigned int l1, l2;
 		rdmsr(MSR_IA32_MISC_ENABLE, l1, l2);
 		if (!(l1 & (1<<11)))
-			set_bit(X86_FEATURE_BTS, (unsigned long *)c->x86_capability);
+			set_cpu_cap(c, X86_FEATURE_BTS);
 		if (!(l1 & (1<<12)))
-			set_bit(X86_FEATURE_PEBS, (unsigned long *)c->x86_capability);
+			set_cpu_cap(c, X86_FEATURE_PEBS);
 	}
 
 	n = c->extended_cpuid_level;
@@ -840,13 +839,13 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 		c->x86_cache_alignment = c->x86_clflush_size * 2;
 	if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
 	    (c->x86 == 0x6 && c->x86_model >= 0x0e))
-		set_bit(X86_FEATURE_CONSTANT_TSC, (unsigned long *)&c->x86_capability);
+		set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
 	if (c->x86 == 6)
-		set_bit(X86_FEATURE_REP_GOOD, (unsigned long *)&c->x86_capability);
+		set_cpu_cap(c, X86_FEATURE_REP_GOOD);
 	if (c->x86 == 15)
-		set_bit(X86_FEATURE_SYNC_RDTSC, (unsigned long *)&c->x86_capability);
+		set_cpu_cap(c, X86_FEATURE_SYNC_RDTSC);
 	else
-		clear_bit(X86_FEATURE_SYNC_RDTSC, (unsigned long *)&c->x86_capability);
+		clear_cpu_cap(c, X86_FEATURE_SYNC_RDTSC);
 	c->x86_max_cores = intel_num_cpu_cores(c);
 
 	srat_detect_node();
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index aacce426cbd0..87e5633805a9 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -963,19 +963,19 @@ static int __init parse_vmi(char *arg)
 		return -EINVAL;
 
 	if (!strcmp(arg, "disable_pge")) {
-		clear_bit(X86_FEATURE_PGE, boot_cpu_data.x86_capability);
+		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_PGE);
 		disable_pge = 1;
 	} else if (!strcmp(arg, "disable_pse")) {
-		clear_bit(X86_FEATURE_PSE, boot_cpu_data.x86_capability);
+		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_PSE);
 		disable_pse = 1;
 	} else if (!strcmp(arg, "disable_sep")) {
-		clear_bit(X86_FEATURE_SEP, boot_cpu_data.x86_capability);
+		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_SEP);
 		disable_sep = 1;
 	} else if (!strcmp(arg, "disable_tsc")) {
-		clear_bit(X86_FEATURE_TSC, boot_cpu_data.x86_capability);
+		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_TSC);
 		disable_tsc = 1;
 	} else if (!strcmp(arg, "disable_mtrr")) {
-		clear_bit(X86_FEATURE_MTRR, boot_cpu_data.x86_capability);
+		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_MTRR);
 		disable_mtrr = 1;
 	} else if (!strcmp(arg, "disable_timer")) {
 		disable_vmi_timer = 1;
diff --git a/include/asm-x86/cpufeature.h b/include/asm-x86/cpufeature.h
index 761922972f6f..87dd900154d1 100644
--- a/include/asm-x86/cpufeature.h
+++ b/include/asm-x86/cpufeature.h
@@ -124,9 +124,12 @@
 	   (((bit)>>5)==6 && (1UL<<((bit)&31) & REQUIRED_MASK6)) ||	\
 	   (((bit)>>5)==7 && (1UL<<((bit)&31) & REQUIRED_MASK7)) )	\
 	  ? 1 :								\
-	 test_bit(bit, (unsigned long *)(c)->x86_capability))
+	 test_bit(bit, (unsigned long *)((c)->x86_capability)))
 #define boot_cpu_has(bit)	cpu_has(&boot_cpu_data, bit)
 
+#define set_cpu_cap(c, bit)	set_bit(bit, (unsigned long *)((c)->x86_capability))
+#define clear_cpu_cap(c, bit)	clear_bit(bit, (unsigned long *)((c)->x86_capability))
+
 #define cpu_has_fpu		boot_cpu_has(X86_FEATURE_FPU)
 #define cpu_has_vme		boot_cpu_has(X86_FEATURE_VME)
 #define cpu_has_de		boot_cpu_has(X86_FEATURE_DE)
-- 
cgit v1.2.3-59-g8ed1b


From 65ea5b0349903585bfed9720fa06f5edb4f1cd25 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:30:56 +0100
Subject: x86: rename the struct pt_regs members for 32/64-bit consistency

We have a lot of code which differs only by the naming of specific
members of structures that contain registers.  In order to enable
additional unifications, this patch drops the e- or r- size prefix
from the register names in struct pt_regs, and drops the x- prefixes
for segment registers on the 32-bit side.

This patch also performs the equivalent renames in some additional
places that might be candidates for unification in the future.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ia32_aout.c           |  30 +++---
 arch/x86/ia32/ia32_binfmt.c         |  42 ++++----
 arch/x86/ia32/ia32_signal.c         | 100 +++++++++----------
 arch/x86/ia32/ptrace32.c            |  44 ++++-----
 arch/x86/ia32/sys_ia32.c            |   6 +-
 arch/x86/kernel/acpi/wakeup_64.S    |  32 +++---
 arch/x86/kernel/asm-offsets_32.c    |  32 +++---
 arch/x86/kernel/asm-offsets_64.c    |  18 ++--
 arch/x86/kernel/cpu/common.c        |   2 +-
 arch/x86/kernel/cpu/mcheck/mce_64.c |  14 +--
 arch/x86/kernel/i8259_32.c          |   2 +-
 arch/x86/kernel/io_apic_64.c        |   2 +-
 arch/x86/kernel/ioport_32.c         |   8 +-
 arch/x86/kernel/ioport_64.c         |   6 +-
 arch/x86/kernel/irq_32.c            |  20 ++--
 arch/x86/kernel/irq_64.c            |  10 +-
 arch/x86/kernel/kprobes_32.c        |  92 ++++++++---------
 arch/x86/kernel/kprobes_64.c        |  69 ++++++-------
 arch/x86/kernel/process_32.c        | 140 +++++++++++++-------------
 arch/x86/kernel/process_64.c        |  44 ++++-----
 arch/x86/kernel/ptrace_32.c         |  26 ++---
 arch/x86/kernel/ptrace_64.c         |  24 ++---
 arch/x86/kernel/signal_32.c         | 192 ++++++++++++++++++------------------
 arch/x86/kernel/signal_64.c         | 115 ++++++++++-----------
 arch/x86/kernel/smp_64.c            |   2 +-
 arch/x86/kernel/smpboot_32.c        |  10 +-
 arch/x86/kernel/step.c              |  15 +--
 arch/x86/kernel/suspend_asm_64.S    |  32 +++---
 arch/x86/kernel/time_32.c           |   8 +-
 arch/x86/kernel/time_64.c           |   4 +-
 arch/x86/kernel/traps_32.c          | 114 ++++++++++-----------
 arch/x86/kernel/traps_64.c          |  84 ++++++++--------
 arch/x86/kernel/vm86_32.c           |  94 +++++++++---------
 arch/x86/kernel/vmi_32.c            |  50 +++++-----
 arch/x86/kernel/vsyscall_64.c       |   2 +-
 arch/x86/lguest/boot.c              |  22 ++---
 arch/x86/mach-voyager/voyager_smp.c |  12 +--
 arch/x86/mm/extable_32.c            |   6 +-
 arch/x86/mm/fault_32.c              |  38 +++----
 arch/x86/mm/fault_64.c              |  22 ++---
 arch/x86/oprofile/backtrace.c       |   6 +-
 arch/x86/xen/enlighten.c            |  18 ++--
 arch/x86/xen/events.c               |   2 +-
 include/asm-x86/compat.h            |   2 +-
 include/asm-x86/elf.h               |  66 ++++++-------
 include/asm-x86/kexec_32.h          |  36 +++----
 include/asm-x86/kexec_64.h          |  20 ++--
 include/asm-x86/kprobes_32.h        |   2 +-
 include/asm-x86/kprobes_64.h        |   2 +-
 include/asm-x86/mce.h               |   4 +-
 include/asm-x86/processor_32.h      |  20 ++--
 include/asm-x86/processor_64.h      |   8 +-
 include/asm-x86/ptrace.h            |  80 ++++++++++++---
 kernel/signal.c                     |   4 +-
 54 files changed, 953 insertions(+), 902 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index a764e4e95314..f1a0f83676dc 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -53,7 +53,7 @@ static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
 /* changed the size calculations - should hopefully work better. lbt */
 	dump->magic = CMAGIC;
 	dump->start_code = 0;
-	dump->start_stack = regs->rsp & ~(PAGE_SIZE - 1);
+	dump->start_stack = regs->sp & ~(PAGE_SIZE - 1);
 	dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
 	dump->u_dsize = ((unsigned long)
 			 (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
@@ -75,22 +75,22 @@ static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
 		dump->u_ssize = tmp >> PAGE_SHIFT;
 	}
 
-	dump->regs.ebx = regs->rbx;
-	dump->regs.ecx = regs->rcx;
-	dump->regs.edx = regs->rdx;
-	dump->regs.esi = regs->rsi;
-	dump->regs.edi = regs->rdi;
-	dump->regs.ebp = regs->rbp;
-	dump->regs.eax = regs->rax;
+	dump->regs.bx = regs->bx;
+	dump->regs.cx = regs->cx;
+	dump->regs.dx = regs->dx;
+	dump->regs.si = regs->si;
+	dump->regs.di = regs->di;
+	dump->regs.bp = regs->bp;
+	dump->regs.ax = regs->ax;
 	dump->regs.ds = current->thread.ds;
 	dump->regs.es = current->thread.es;
 	asm("movl %%fs,%0" : "=r" (fs)); dump->regs.fs = fs;
 	asm("movl %%gs,%0" : "=r" (gs)); dump->regs.gs = gs;
-	dump->regs.orig_eax = regs->orig_rax;
-	dump->regs.eip = regs->rip;
+	dump->regs.orig_ax = regs->orig_ax;
+	dump->regs.ip = regs->ip;
 	dump->regs.cs = regs->cs;
-	dump->regs.eflags = regs->eflags;
-	dump->regs.esp = regs->rsp;
+	dump->regs.flags = regs->flags;
+	dump->regs.sp = regs->sp;
 	dump->regs.ss = regs->ss;
 
 #if 1 /* FIXME */
@@ -432,9 +432,9 @@ beyond_if:
 	asm volatile("movl %0,%%fs" :: "r" (0)); \
 	asm volatile("movl %0,%%es; movl %0,%%ds": :"r" (__USER32_DS));
 	load_gs_index(0);
-	(regs)->rip = ex.a_entry;
-	(regs)->rsp = current->mm->start_stack;
-	(regs)->eflags = 0x200;
+	(regs)->ip = ex.a_entry;
+	(regs)->sp = current->mm->start_stack;
+	(regs)->flags = 0x200;
 	(regs)->cs = __USER32_CS;
 	(regs)->ss = __USER32_DS;
 	regs->r8 = regs->r9 = regs->r10 = regs->r11 =
diff --git a/arch/x86/ia32/ia32_binfmt.c b/arch/x86/ia32/ia32_binfmt.c
index e32974c3dd3b..806135c3f975 100644
--- a/arch/x86/ia32/ia32_binfmt.c
+++ b/arch/x86/ia32/ia32_binfmt.c
@@ -73,22 +73,22 @@ struct file;
 /* Assumes current==process to be dumped */
 #undef	ELF_CORE_COPY_REGS
 #define ELF_CORE_COPY_REGS(pr_reg, regs)       		\
-	pr_reg[0] = regs->rbx;				\
-	pr_reg[1] = regs->rcx;				\
-	pr_reg[2] = regs->rdx;				\
-	pr_reg[3] = regs->rsi;				\
-	pr_reg[4] = regs->rdi;				\
-	pr_reg[5] = regs->rbp;				\
-	pr_reg[6] = regs->rax;				\
+	pr_reg[0] = regs->bx;				\
+	pr_reg[1] = regs->cx;				\
+	pr_reg[2] = regs->dx;				\
+	pr_reg[3] = regs->si;				\
+	pr_reg[4] = regs->di;				\
+	pr_reg[5] = regs->bp;				\
+	pr_reg[6] = regs->ax;				\
 	pr_reg[7] = _GET_SEG(ds);   			\
 	pr_reg[8] = _GET_SEG(es);			\
 	pr_reg[9] = _GET_SEG(fs);			\
 	pr_reg[10] = _GET_SEG(gs);			\
-	pr_reg[11] = regs->orig_rax;			\
-	pr_reg[12] = regs->rip;				\
+	pr_reg[11] = regs->orig_ax;			\
+	pr_reg[12] = regs->ip;				\
 	pr_reg[13] = regs->cs;				\
-	pr_reg[14] = regs->eflags;			\
-	pr_reg[15] = regs->rsp;				\
+	pr_reg[14] = regs->flags;			\
+	pr_reg[15] = regs->sp;				\
 	pr_reg[16] = regs->ss;
 
 
@@ -205,9 +205,9 @@ do {							\
 	asm volatile("movl %0,%%fs" :: "r" (0)); \
 	asm volatile("movl %0,%%es; movl %0,%%ds": :"r" (__USER32_DS)); \
 	load_gs_index(0); \
-	(regs)->rip = (new_rip); \
-	(regs)->rsp = (new_rsp); \
-	(regs)->eflags = 0x200; \
+	(regs)->ip = (new_rip); \
+	(regs)->sp = (new_rsp); \
+	(regs)->flags = X86_EFLAGS_IF; \
 	(regs)->cs = __USER32_CS; \
 	(regs)->ss = __USER32_DS; \
 	set_fs(USER_DS); \
@@ -233,13 +233,13 @@ extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
 static void elf32_init(struct pt_regs *regs)
 {
 	struct task_struct *me = current; 
-	regs->rdi = 0;
-	regs->rsi = 0;
-	regs->rdx = 0;
-	regs->rcx = 0;
-	regs->rax = 0;
-	regs->rbx = 0; 
-	regs->rbp = 0; 
+	regs->di = 0;
+	regs->si = 0;
+	regs->dx = 0;
+	regs->cx = 0;
+	regs->ax = 0;
+	regs->bx = 0;
+	regs->bp = 0;
 	regs->r8 = regs->r9 = regs->r10 = regs->r11 = regs->r12 =
 		regs->r13 = regs->r14 = regs->r15 = 0; 
     me->thread.fs = 0; 
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 39356a756b28..f2da443f8c7b 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -154,7 +154,7 @@ asmlinkage long sys32_sigaltstack(const stack_ia32_t __user *uss_ptr,
 	}
 	seg = get_fs();
 	set_fs(KERNEL_DS);
-	ret = do_sigaltstack(uss_ptr ? &uss : NULL, &uoss, regs->rsp);
+	ret = do_sigaltstack(uss_ptr ? &uss : NULL, &uoss, regs->sp);
 	set_fs(seg);
 	if (ret >= 0 && uoss_ptr)  {
 		if (!access_ok(VERIFY_WRITE, uoss_ptr, sizeof(stack_ia32_t)) ||
@@ -195,7 +195,7 @@ struct rt_sigframe
 #define COPY(x)		{ \
 	unsigned int reg;			\
 	err |= __get_user(reg, &sc->e ##x);	\
-	regs->r ## x = reg;			\
+	regs->x = reg;			\
 }
 
 #define RELOAD_SEG(seg,mask)						\
@@ -220,7 +220,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
 #if DEBUG_SIG
 	printk(KERN_DEBUG "SIG restore_sigcontext: "
 	       "sc=%p err(%x) eip(%x) cs(%x) flg(%x)\n",
-	       sc, sc->err, sc->eip, sc->cs, sc->eflags);
+	       sc, sc->err, sc->ip, sc->cs, sc->flags);
 #endif
 
 	/*
@@ -249,9 +249,9 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
 	regs->ss |= 3;
 
 	err |= __get_user(tmpflags, &sc->eflags);
-	regs->eflags = (regs->eflags & ~0x40DD5) | (tmpflags & 0x40DD5);
+	regs->flags = (regs->flags & ~0x40DD5) | (tmpflags & 0x40DD5);
 	/* disable syscall checks */
-	regs->orig_rax = -1;
+	regs->orig_ax = -1;
 
 	err |= __get_user(tmp, &sc->fpstate);
 	buf = compat_ptr(tmp);
@@ -279,9 +279,9 @@ badframe:
 
 asmlinkage long sys32_sigreturn(struct pt_regs *regs)
 {
-	struct sigframe __user *frame = (struct sigframe __user *)(regs->rsp-8);
+	struct sigframe __user *frame = (struct sigframe __user *)(regs->sp-8);
 	sigset_t set;
-	unsigned int eax;
+	unsigned int ax;
 
 	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
 		goto badframe;
@@ -298,9 +298,9 @@ asmlinkage long sys32_sigreturn(struct pt_regs *regs)
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 
-	if (ia32_restore_sigcontext(regs, &frame->sc, &eax))
+	if (ia32_restore_sigcontext(regs, &frame->sc, &ax))
 		goto badframe;
-	return eax;
+	return ax;
 
 badframe:
 	signal_fault(regs, frame, "32bit sigreturn");
@@ -311,10 +311,10 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
 {
 	struct rt_sigframe __user *frame;
 	sigset_t set;
-	unsigned int eax;
+	unsigned int ax;
 	struct pt_regs tregs;
 
-	frame = (struct rt_sigframe __user *)(regs->rsp - 4);
+	frame = (struct rt_sigframe __user *)(regs->sp - 4);
 
 	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
 		goto badframe;
@@ -327,14 +327,14 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 
-	if (ia32_restore_sigcontext(regs, &frame->uc.uc_mcontext, &eax))
+	if (ia32_restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
 		goto badframe;
 
 	tregs = *regs;
 	if (sys32_sigaltstack(&frame->uc.uc_stack, NULL, &tregs) == -EFAULT)
 		goto badframe;
 
-	return eax;
+	return ax;
 
 badframe:
 	signal_fault(regs, frame, "32bit rt sigreturn");
@@ -361,21 +361,21 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
 	__asm__("movl %%es,%0" : "=r"(tmp): "0"(tmp));
 	err |= __put_user(tmp, (unsigned int __user *)&sc->es);
 
-	err |= __put_user((u32)regs->rdi, &sc->edi);
-	err |= __put_user((u32)regs->rsi, &sc->esi);
-	err |= __put_user((u32)regs->rbp, &sc->ebp);
-	err |= __put_user((u32)regs->rsp, &sc->esp);
-	err |= __put_user((u32)regs->rbx, &sc->ebx);
-	err |= __put_user((u32)regs->rdx, &sc->edx);
-	err |= __put_user((u32)regs->rcx, &sc->ecx);
-	err |= __put_user((u32)regs->rax, &sc->eax);
+	err |= __put_user((u32)regs->di, &sc->edi);
+	err |= __put_user((u32)regs->si, &sc->esi);
+	err |= __put_user((u32)regs->bp, &sc->ebp);
+	err |= __put_user((u32)regs->sp, &sc->esp);
+	err |= __put_user((u32)regs->bx, &sc->ebx);
+	err |= __put_user((u32)regs->dx, &sc->edx);
+	err |= __put_user((u32)regs->cx, &sc->ecx);
+	err |= __put_user((u32)regs->ax, &sc->eax);
 	err |= __put_user((u32)regs->cs, &sc->cs);
 	err |= __put_user((u32)regs->ss, &sc->ss);
 	err |= __put_user(current->thread.trap_no, &sc->trapno);
 	err |= __put_user(current->thread.error_code, &sc->err);
-	err |= __put_user((u32)regs->rip, &sc->eip);
-	err |= __put_user((u32)regs->eflags, &sc->eflags);
-	err |= __put_user((u32)regs->rsp, &sc->esp_at_signal);
+	err |= __put_user((u32)regs->ip, &sc->eip);
+	err |= __put_user((u32)regs->flags, &sc->eflags);
+	err |= __put_user((u32)regs->sp, &sc->esp_at_signal);
 
 	tmp = save_i387_ia32(current, fpstate, regs, 0);
 	if (tmp < 0)
@@ -400,28 +400,28 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
 static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
 				 size_t frame_size)
 {
-	unsigned long rsp;
+	unsigned long sp;
 
 	/* Default to using normal stack */
-	rsp = regs->rsp;
+	sp = regs->sp;
 
 	/* This is the X/Open sanctioned signal stack switching.  */
 	if (ka->sa.sa_flags & SA_ONSTACK) {
-		if (sas_ss_flags(rsp) == 0)
-			rsp = current->sas_ss_sp + current->sas_ss_size;
+		if (sas_ss_flags(sp) == 0)
+			sp = current->sas_ss_sp + current->sas_ss_size;
 	}
 
 	/* This is the legacy signal stack switching. */
 	else if ((regs->ss & 0xffff) != __USER_DS &&
 		!(ka->sa.sa_flags & SA_RESTORER) &&
 		 ka->sa.sa_restorer)
-		rsp = (unsigned long) ka->sa.sa_restorer;
+		sp = (unsigned long) ka->sa.sa_restorer;
 
-	rsp -= frame_size;
+	sp -= frame_size;
 	/* Align the stack pointer according to the i386 ABI,
 	 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
-	rsp = ((rsp + 4) & -16ul) - 4;
-	return (void __user *) rsp;
+	sp = ((sp + 4) & -16ul) - 4;
+	return (void __user *) sp;
 }
 
 int ia32_setup_frame(int sig, struct k_sigaction *ka,
@@ -486,13 +486,13 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
 		goto give_sigsegv;
 
 	/* Set up registers for signal handler */
-	regs->rsp = (unsigned long) frame;
-	regs->rip = (unsigned long) ka->sa.sa_handler;
+	regs->sp = (unsigned long) frame;
+	regs->ip = (unsigned long) ka->sa.sa_handler;
 
 	/* Make -mregparm=3 work */
-	regs->rax = sig;
-	regs->rdx = 0;
-	regs->rcx = 0;
+	regs->ax = sig;
+	regs->dx = 0;
+	regs->cx = 0;
 
 	asm volatile("movl %0,%%ds" :: "r" (__USER32_DS));
 	asm volatile("movl %0,%%es" :: "r" (__USER32_DS));
@@ -501,13 +501,13 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
 	regs->ss = __USER32_DS;
 
 	set_fs(USER_DS);
-	regs->eflags &= ~TF_MASK;
+	regs->flags &= ~TF_MASK;
 	if (test_thread_flag(TIF_SINGLESTEP))
 		ptrace_notify(SIGTRAP);
 
 #if DEBUG_SIG
 	printk(KERN_DEBUG "SIG deliver (%s:%d): sp=%p pc=%lx ra=%u\n",
-	       current->comm, current->pid, frame, regs->rip, frame->pretcode);
+	       current->comm, current->pid, frame, regs->ip, frame->pretcode);
 #endif
 
 	return 0;
@@ -556,7 +556,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	err |= __put_user(0, &frame->uc.uc_flags);
 	err |= __put_user(0, &frame->uc.uc_link);
 	err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
-	err |= __put_user(sas_ss_flags(regs->rsp),
+	err |= __put_user(sas_ss_flags(regs->sp),
 			  &frame->uc.uc_stack.ss_flags);
 	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
 	err |= ia32_setup_sigcontext(&frame->uc.uc_mcontext, &frame->fpstate,
@@ -581,18 +581,18 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 		goto give_sigsegv;
 
 	/* Set up registers for signal handler */
-	regs->rsp = (unsigned long) frame;
-	regs->rip = (unsigned long) ka->sa.sa_handler;
+	regs->sp = (unsigned long) frame;
+	regs->ip = (unsigned long) ka->sa.sa_handler;
 
 	/* Make -mregparm=3 work */
-	regs->rax = sig;
-	regs->rdx = (unsigned long) &frame->info;
-	regs->rcx = (unsigned long) &frame->uc;
+	regs->ax = sig;
+	regs->dx = (unsigned long) &frame->info;
+	regs->cx = (unsigned long) &frame->uc;
 
 	/* Make -mregparm=3 work */
-	regs->rax = sig;
-	regs->rdx = (unsigned long) &frame->info;
-	regs->rcx = (unsigned long) &frame->uc;
+	regs->ax = sig;
+	regs->dx = (unsigned long) &frame->info;
+	regs->cx = (unsigned long) &frame->uc;
 
 	asm volatile("movl %0,%%ds" :: "r" (__USER32_DS));
 	asm volatile("movl %0,%%es" :: "r" (__USER32_DS));
@@ -601,13 +601,13 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	regs->ss = __USER32_DS;
 
 	set_fs(USER_DS);
-	regs->eflags &= ~TF_MASK;
+	regs->flags &= ~TF_MASK;
 	if (test_thread_flag(TIF_SINGLESTEP))
 		ptrace_notify(SIGTRAP);
 
 #if DEBUG_SIG
 	printk(KERN_DEBUG "SIG deliver (%s:%d): sp=%p pc=%lx ra=%u\n",
-	       current->comm, current->pid, frame, regs->rip, frame->pretcode);
+	       current->comm, current->pid, frame, regs->ip, frame->pretcode);
 #endif
 
 	return 0;
diff --git a/arch/x86/ia32/ptrace32.c b/arch/x86/ia32/ptrace32.c
index 8c6fb9d8352b..1e382e3bd882 100644
--- a/arch/x86/ia32/ptrace32.c
+++ b/arch/x86/ia32/ptrace32.c
@@ -73,19 +73,19 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 		stack[offsetof(struct pt_regs, cs)/8] = val & 0xffff;
 		break;
 
-	R32(ebx, rbx);
-	R32(ecx, rcx);
-	R32(edx, rdx);
-	R32(edi, rdi);
-	R32(esi, rsi);
-	R32(ebp, rbp);
-	R32(eax, rax);
-	R32(orig_eax, orig_rax);
-	R32(eip, rip);
-	R32(esp, rsp);
+	R32(ebx, bx);
+	R32(ecx, cx);
+	R32(edx, dx);
+	R32(edi, di);
+	R32(esi, si);
+	R32(ebp, bp);
+	R32(eax, ax);
+	R32(orig_eax, orig_ax);
+	R32(eip, ip);
+	R32(esp, sp);
 
 	case offsetof(struct user32, regs.eflags): {
-		__u64 *flags = &stack[offsetof(struct pt_regs, eflags)/8];
+		__u64 *flags = &stack[offsetof(struct pt_regs, flags)/8];
 
 		val &= FLAG_MASK;
 		/*
@@ -145,22 +145,22 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 
 	R32(cs, cs);
 	R32(ss, ss);
-	R32(ebx, rbx);
-	R32(ecx, rcx);
-	R32(edx, rdx);
-	R32(edi, rdi);
-	R32(esi, rsi);
-	R32(ebp, rbp);
-	R32(eax, rax);
-	R32(orig_eax, orig_rax);
-	R32(eip, rip);
-	R32(esp, rsp);
+	R32(ebx, bx);
+	R32(ecx, cx);
+	R32(edx, dx);
+	R32(edi, di);
+	R32(esi, si);
+	R32(ebp, bp);
+	R32(eax, ax);
+	R32(orig_eax, orig_ax);
+	R32(eip, ip);
+	R32(esp, sp);
 
 	case offsetof(struct user32, regs.eflags):
 		/*
 		 * If the debugger set TF, hide it from the readout.
 		 */
-		*val = stack[offsetof(struct pt_regs, eflags)/8];
+		*val = stack[offsetof(struct pt_regs, flags)/8];
 		if (test_tsk_thread_flag(child, TIF_FORCED_TF))
 			*val &= ~X86_EFLAGS_TF;
 		break;
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 58991abc5b59..abf71d26fc2a 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -816,11 +816,11 @@ asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv,
 asmlinkage long sys32_clone(unsigned int clone_flags, unsigned int newsp,
 			    struct pt_regs *regs)
 {
-	void __user *parent_tid = (void __user *)regs->rdx;
-	void __user *child_tid = (void __user *)regs->rdi;
+	void __user *parent_tid = (void __user *)regs->dx;
+	void __user *child_tid = (void __user *)regs->di;
 
 	if (!newsp)
-		newsp = regs->rsp;
+		newsp = regs->sp;
 	return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
 }
 
diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S
index 5ed3bc5c61d7..2e1b9e0d0767 100644
--- a/arch/x86/kernel/acpi/wakeup_64.S
+++ b/arch/x86/kernel/acpi/wakeup_64.S
@@ -344,13 +344,13 @@ do_suspend_lowlevel:
 	call	save_processor_state
 
 	movq	$saved_context, %rax
-	movq	%rsp, pt_regs_rsp(%rax)
-	movq	%rbp, pt_regs_rbp(%rax)
-	movq	%rsi, pt_regs_rsi(%rax)
-	movq	%rdi, pt_regs_rdi(%rax)
-	movq	%rbx, pt_regs_rbx(%rax)
-	movq	%rcx, pt_regs_rcx(%rax)
-	movq	%rdx, pt_regs_rdx(%rax)
+	movq	%rsp, pt_regs_sp(%rax)
+	movq	%rbp, pt_regs_bp(%rax)
+	movq	%rsi, pt_regs_si(%rax)
+	movq	%rdi, pt_regs_di(%rax)
+	movq	%rbx, pt_regs_bx(%rax)
+	movq	%rcx, pt_regs_cx(%rax)
+	movq	%rdx, pt_regs_dx(%rax)
 	movq	%r8, pt_regs_r8(%rax)
 	movq	%r9, pt_regs_r9(%rax)
 	movq	%r10, pt_regs_r10(%rax)
@@ -360,7 +360,7 @@ do_suspend_lowlevel:
 	movq	%r14, pt_regs_r14(%rax)
 	movq	%r15, pt_regs_r15(%rax)
 	pushfq
-	popq	pt_regs_eflags(%rax)
+	popq	pt_regs_flags(%rax)
 
 	movq	$.L97, saved_rip(%rip)
 
@@ -391,15 +391,15 @@ do_suspend_lowlevel:
 	movq	%rbx, %cr2
 	movq	saved_context_cr0(%rax), %rbx
 	movq	%rbx, %cr0
-	pushq	pt_regs_eflags(%rax)
+	pushq	pt_regs_flags(%rax)
 	popfq
-	movq	pt_regs_rsp(%rax), %rsp
-	movq	pt_regs_rbp(%rax), %rbp
-	movq	pt_regs_rsi(%rax), %rsi
-	movq	pt_regs_rdi(%rax), %rdi
-	movq	pt_regs_rbx(%rax), %rbx
-	movq	pt_regs_rcx(%rax), %rcx
-	movq	pt_regs_rdx(%rax), %rdx
+	movq	pt_regs_sp(%rax), %rsp
+	movq	pt_regs_bp(%rax), %rbp
+	movq	pt_regs_si(%rax), %rsi
+	movq	pt_regs_di(%rax), %rdi
+	movq	pt_regs_bx(%rax), %rbx
+	movq	pt_regs_cx(%rax), %rcx
+	movq	pt_regs_dx(%rax), %rdx
 	movq	pt_regs_r8(%rax), %r8
 	movq	pt_regs_r9(%rax), %r9
 	movq	pt_regs_r10(%rax), %r10
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index fd7464d23339..a3a8be7618d1 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -75,22 +75,22 @@ void foo(void)
 	OFFSET(GDS_pad, Xgt_desc_struct, pad);
 	BLANK();
 
-	OFFSET(PT_EBX, pt_regs, ebx);
-	OFFSET(PT_ECX, pt_regs, ecx);
-	OFFSET(PT_EDX, pt_regs, edx);
-	OFFSET(PT_ESI, pt_regs, esi);
-	OFFSET(PT_EDI, pt_regs, edi);
-	OFFSET(PT_EBP, pt_regs, ebp);
-	OFFSET(PT_EAX, pt_regs, eax);
-	OFFSET(PT_DS,  pt_regs, xds);
-	OFFSET(PT_ES,  pt_regs, xes);
-	OFFSET(PT_FS,  pt_regs, xfs);
-	OFFSET(PT_ORIG_EAX, pt_regs, orig_eax);
-	OFFSET(PT_EIP, pt_regs, eip);
-	OFFSET(PT_CS,  pt_regs, xcs);
-	OFFSET(PT_EFLAGS, pt_regs, eflags);
-	OFFSET(PT_OLDESP, pt_regs, esp);
-	OFFSET(PT_OLDSS,  pt_regs, xss);
+	OFFSET(PT_EBX, pt_regs, bx);
+	OFFSET(PT_ECX, pt_regs, cx);
+	OFFSET(PT_EDX, pt_regs, dx);
+	OFFSET(PT_ESI, pt_regs, si);
+	OFFSET(PT_EDI, pt_regs, di);
+	OFFSET(PT_EBP, pt_regs, bp);
+	OFFSET(PT_EAX, pt_regs, ax);
+	OFFSET(PT_DS,  pt_regs, ds);
+	OFFSET(PT_ES,  pt_regs, es);
+	OFFSET(PT_FS,  pt_regs, fs);
+	OFFSET(PT_ORIG_EAX, pt_regs, orig_ax);
+	OFFSET(PT_EIP, pt_regs, ip);
+	OFFSET(PT_CS,  pt_regs, cs);
+	OFFSET(PT_EFLAGS, pt_regs, flags);
+	OFFSET(PT_OLDESP, pt_regs, sp);
+	OFFSET(PT_OLDSS,  pt_regs, ss);
 	BLANK();
 
 	OFFSET(EXEC_DOMAIN_handler, exec_domain, handler);
diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index c27c646214f4..2e918ebf21d3 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -83,14 +83,14 @@ int main(void)
 	DEFINE(pbe_next, offsetof(struct pbe, next));
 	BLANK();
 #define ENTRY(entry) DEFINE(pt_regs_ ## entry, offsetof(struct pt_regs, entry))
-	ENTRY(rbx);
-	ENTRY(rbx);
-	ENTRY(rcx);
-	ENTRY(rdx);
-	ENTRY(rsp);
-	ENTRY(rbp);
-	ENTRY(rsi);
-	ENTRY(rdi);
+	ENTRY(bx);
+	ENTRY(bx);
+	ENTRY(cx);
+	ENTRY(dx);
+	ENTRY(sp);
+	ENTRY(bp);
+	ENTRY(si);
+	ENTRY(di);
 	ENTRY(r8);
 	ENTRY(r9);
 	ENTRY(r10);
@@ -99,7 +99,7 @@ int main(void)
 	ENTRY(r13);
 	ENTRY(r14);
 	ENTRY(r15);
-	ENTRY(eflags);
+	ENTRY(flags);
 	BLANK();
 #undef ENTRY
 #define ENTRY(entry) DEFINE(saved_context_ ## entry, offsetof(struct saved_context, entry))
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index e2fcf2051bdb..5db2a163bf4b 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -634,7 +634,7 @@ void __init early_cpu_init(void)
 struct pt_regs * __devinit idle_regs(struct pt_regs *regs)
 {
 	memset(regs, 0, sizeof(struct pt_regs));
-	regs->xfs = __KERNEL_PERCPU;
+	regs->fs = __KERNEL_PERCPU;
 	return regs;
 }
 
diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index 3c7672c40cf4..0adad772d0da 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -110,12 +110,12 @@ static void print_mce(struct mce *m)
 	       KERN_EMERG
 	       "CPU %d: Machine Check Exception: %16Lx Bank %d: %016Lx\n",
 	       m->cpu, m->mcgstatus, m->bank, m->status);
-	if (m->rip) {
+	if (m->ip) {
 		printk(KERN_EMERG "RIP%s %02x:<%016Lx> ",
 		       !(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "",
-		       m->cs, m->rip);
+		       m->cs, m->ip);
 		if (m->cs == __KERNEL_CS)
-			print_symbol("{%s}", m->rip);
+			print_symbol("{%s}", m->ip);
 		printk("\n");
 	}
 	printk(KERN_EMERG "TSC %Lx ", m->tsc);
@@ -156,16 +156,16 @@ static int mce_available(struct cpuinfo_x86 *c)
 static inline void mce_get_rip(struct mce *m, struct pt_regs *regs)
 {
 	if (regs && (m->mcgstatus & MCG_STATUS_RIPV)) {
-		m->rip = regs->rip;
+		m->ip = regs->ip;
 		m->cs = regs->cs;
 	} else {
-		m->rip = 0;
+		m->ip = 0;
 		m->cs = 0;
 	}
 	if (rip_msr) {
 		/* Assume the RIP in the MSR is exact. Is this true? */
 		m->mcgstatus |= MCG_STATUS_EIPV;
-		rdmsrl(rip_msr, m->rip);
+		rdmsrl(rip_msr, m->ip);
 		m->cs = 0;
 	}
 }
@@ -288,7 +288,7 @@ void do_machine_check(struct pt_regs * regs, long error_code)
 		 * instruction which caused the MCE.
 		 */
 		if (m.mcgstatus & MCG_STATUS_EIPV)
-			user_space = panicm.rip && (panicm.cs & 3);
+			user_space = panicm.ip && (panicm.cs & 3);
 
 		/*
 		 * If we know that the error was in user space, send a
diff --git a/arch/x86/kernel/i8259_32.c b/arch/x86/kernel/i8259_32.c
index 3321ce669295..f201e7da1bbc 100644
--- a/arch/x86/kernel/i8259_32.c
+++ b/arch/x86/kernel/i8259_32.c
@@ -339,7 +339,7 @@ static irqreturn_t math_error_irq(int cpl, void *dev_id)
 	outb(0,0xF0);
 	if (ignore_fpu_irq || !boot_cpu_data.hard_math)
 		return IRQ_NONE;
-	math_error((void __user *)get_irq_regs()->eip);
+	math_error((void __user *)get_irq_regs()->ip);
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index 4ef85a3b3f9f..fa70005be5e8 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -1412,7 +1412,7 @@ static void irq_complete_move(unsigned int irq)
 	if (likely(!cfg->move_in_progress))
 		return;
 
-	vector = ~get_irq_regs()->orig_rax;
+	vector = ~get_irq_regs()->orig_ax;
 	me = smp_processor_id();
 	if ((vector == cfg->vector) && cpu_isset(me, cfg->domain)) {
 		cpumask_t cleanup_mask;
diff --git a/arch/x86/kernel/ioport_32.c b/arch/x86/kernel/ioport_32.c
index c281ffa18259..9295e01ff49c 100644
--- a/arch/x86/kernel/ioport_32.c
+++ b/arch/x86/kernel/ioport_32.c
@@ -100,7 +100,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
  * beyond the 0x3ff range: to get the full 65536 ports bitmapped
  * you'd need 8kB of bitmaps/process, which is a bit excessive.
  *
- * Here we just change the eflags value on the stack: we allow
+ * Here we just change the flags value on the stack: we allow
  * only the super-user to do it. This depends on the stack-layout
  * on system-call entry - see also fork() and the signal handling
  * code.
@@ -109,8 +109,8 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 asmlinkage long sys_iopl(unsigned long regsp)
 {
 	volatile struct pt_regs *regs = (struct pt_regs *)&regsp;
-	unsigned int level = regs->ebx;
-	unsigned int old = (regs->eflags >> 12) & 3;
+	unsigned int level = regs->bx;
+	unsigned int old = (regs->flags >> 12) & 3;
 	struct thread_struct *t = &current->thread;
 
 	if (level > 3)
@@ -122,7 +122,7 @@ asmlinkage long sys_iopl(unsigned long regsp)
 	}
 
 	t->iopl = level << 12;
-	regs->eflags = (regs->eflags & ~X86_EFLAGS_IOPL) | t->iopl;
+	regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | t->iopl;
 	set_iopl_mask(t->iopl);
 
 	return 0;
diff --git a/arch/x86/kernel/ioport_64.c b/arch/x86/kernel/ioport_64.c
index 5f62fad64dab..ff7514b757e5 100644
--- a/arch/x86/kernel/ioport_64.c
+++ b/arch/x86/kernel/ioport_64.c
@@ -95,7 +95,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
  * beyond the 0x3ff range: to get the full 65536 ports bitmapped
  * you'd need 8kB of bitmaps/process, which is a bit excessive.
  *
- * Here we just change the eflags value on the stack: we allow
+ * Here we just change the flags value on the stack: we allow
  * only the super-user to do it. This depends on the stack-layout
  * on system-call entry - see also fork() and the signal handling
  * code.
@@ -103,7 +103,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 
 asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs)
 {
-	unsigned int old = (regs->eflags >> 12) & 3;
+	unsigned int old = (regs->flags >> 12) & 3;
 
 	if (level > 3)
 		return -EINVAL;
@@ -112,6 +112,6 @@ asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs)
 		if (!capable(CAP_SYS_RAWIO))
 			return -EPERM;
 	}
-	regs->eflags = (regs->eflags &~ X86_EFLAGS_IOPL) | (level << 12);
+	regs->flags = (regs->flags &~ X86_EFLAGS_IOPL) | (level << 12);
 	return 0;
 }
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index d3fde94f7345..b49616bcc16b 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -70,7 +70,7 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
 {	
 	struct pt_regs *old_regs;
 	/* high bit used in ret_from_ code */
-	int irq = ~regs->orig_eax;
+	int irq = ~regs->orig_ax;
 	struct irq_desc *desc = irq_desc + irq;
 #ifdef CONFIG_4KSTACKS
 	union irq_ctx *curctx, *irqctx;
@@ -88,13 +88,13 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
 	/* Debugging check for stack overflow: is there less than 1KB free? */
 	{
-		long esp;
+		long sp;
 
 		__asm__ __volatile__("andl %%esp,%0" :
-					"=r" (esp) : "0" (THREAD_SIZE - 1));
-		if (unlikely(esp < (sizeof(struct thread_info) + STACK_WARN))) {
+					"=r" (sp) : "0" (THREAD_SIZE - 1));
+		if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) {
 			printk("do_IRQ: stack overflow: %ld\n",
-				esp - sizeof(struct thread_info));
+				sp - sizeof(struct thread_info));
 			dump_stack();
 		}
 	}
@@ -112,7 +112,7 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
 	 * current stack (which is the irq stack already after all)
 	 */
 	if (curctx != irqctx) {
-		int arg1, arg2, ebx;
+		int arg1, arg2, bx;
 
 		/* build the stack frame on the IRQ stack */
 		isp = (u32*) ((char*)irqctx + sizeof(*irqctx));
@@ -128,10 +128,10 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
 			(curctx->tinfo.preempt_count & SOFTIRQ_MASK);
 
 		asm volatile(
-			"       xchgl  %%ebx,%%esp      \n"
-			"       call   *%%edi           \n"
-			"       movl   %%ebx,%%esp      \n"
-			: "=a" (arg1), "=d" (arg2), "=b" (ebx)
+			"       xchgl  %%ebx,%%esp    \n"
+			"       call   *%%edi         \n"
+			"       movl   %%ebx,%%esp    \n"
+			: "=a" (arg1), "=d" (arg2), "=b" (bx)
 			:  "0" (irq),   "1" (desc),  "2" (isp),
 			   "D" (desc->handle_irq)
 			: "memory", "cc"
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index 6c3a3b6e5cf4..3aac15466a91 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -53,11 +53,11 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 	u64 curbase = (u64)task_stack_page(current);
 	static unsigned long warned = -60*HZ;
 
-	if (regs->rsp >= curbase && regs->rsp <= curbase + THREAD_SIZE &&
-	    regs->rsp <  curbase + sizeof(struct thread_info) + 128 &&
+	if (regs->sp >= curbase && regs->sp <= curbase + THREAD_SIZE &&
+	    regs->sp <  curbase + sizeof(struct thread_info) + 128 &&
 	    time_after(jiffies, warned + 60*HZ)) {
-		printk("do_IRQ: %s near stack overflow (cur:%Lx,rsp:%lx)\n",
-		       current->comm, curbase, regs->rsp);
+		printk("do_IRQ: %s near stack overflow (cur:%Lx,sp:%lx)\n",
+		       current->comm, curbase, regs->sp);
 		show_stack(NULL,NULL);
 		warned = jiffies;
 	}
@@ -162,7 +162,7 @@ asmlinkage unsigned int do_IRQ(struct pt_regs *regs)
 	struct pt_regs *old_regs = set_irq_regs(regs);
 
 	/* high bit used in ret_from_ code  */
-	unsigned vector = ~regs->orig_rax;
+	unsigned vector = ~regs->orig_ax;
 	unsigned irq;
 
 	exit_idle();
diff --git a/arch/x86/kernel/kprobes_32.c b/arch/x86/kernel/kprobes_32.c
index bc4a68367cd0..d708cd4f956f 100644
--- a/arch/x86/kernel/kprobes_32.c
+++ b/arch/x86/kernel/kprobes_32.c
@@ -212,7 +212,7 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
 {
 	__get_cpu_var(current_kprobe) = p;
 	kcb->kprobe_saved_eflags = kcb->kprobe_old_eflags
-		= (regs->eflags & (TF_MASK | IF_MASK));
+		= (regs->flags & (TF_MASK | IF_MASK));
 	if (is_IF_modifier(p->opcode))
 		kcb->kprobe_saved_eflags &= ~IF_MASK;
 }
@@ -232,20 +232,20 @@ static __always_inline void restore_btf(void)
 static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 {
 	clear_btf();
-	regs->eflags |= TF_MASK;
-	regs->eflags &= ~IF_MASK;
+	regs->flags |= TF_MASK;
+	regs->flags &= ~IF_MASK;
 	/*single step inline if the instruction is an int3*/
 	if (p->opcode == BREAKPOINT_INSTRUCTION)
-		regs->eip = (unsigned long)p->addr;
+		regs->ip = (unsigned long)p->addr;
 	else
-		regs->eip = (unsigned long)p->ainsn.insn;
+		regs->ip = (unsigned long)p->ainsn.insn;
 }
 
 /* Called with kretprobe_lock held */
 void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 				      struct pt_regs *regs)
 {
-	unsigned long *sara = (unsigned long *)&regs->esp;
+	unsigned long *sara = (unsigned long *)&regs->sp;
 
 	ri->ret_addr = (kprobe_opcode_t *) *sara;
 
@@ -264,7 +264,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 	kprobe_opcode_t *addr;
 	struct kprobe_ctlblk *kcb;
 
-	addr = (kprobe_opcode_t *)(regs->eip - sizeof(kprobe_opcode_t));
+	addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
 
 	/*
 	 * We don't want to be preempted for the entire
@@ -279,8 +279,8 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 		if (p) {
 			if (kcb->kprobe_status == KPROBE_HIT_SS &&
 				*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
-				regs->eflags &= ~TF_MASK;
-				regs->eflags |= kcb->kprobe_saved_eflags;
+				regs->flags &= ~TF_MASK;
+				regs->flags |= kcb->kprobe_saved_eflags;
 				goto no_kprobe;
 			}
 			/* We have reentered the kprobe_handler(), since
@@ -301,7 +301,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 			 * another cpu right after we hit, no further
 			 * handling of this interrupt is appropriate
 			 */
-				regs->eip -= sizeof(kprobe_opcode_t);
+				regs->ip -= sizeof(kprobe_opcode_t);
 				ret = 1;
 				goto no_kprobe;
 			}
@@ -325,7 +325,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 			 * Back up over the (now missing) int3 and run
 			 * the original instruction.
 			 */
-			regs->eip -= sizeof(kprobe_opcode_t);
+			regs->ip -= sizeof(kprobe_opcode_t);
 			ret = 1;
 		}
 		/* Not one of ours: let kernel handle it */
@@ -344,7 +344,7 @@ ss_probe:
 	if (p->ainsn.boostable == 1 && !p->post_handler){
 		/* Boost up -- we can execute copied instructions directly */
 		reset_current_kprobe();
-		regs->eip = (unsigned long)p->ainsn.insn;
+		regs->ip = (unsigned long)p->ainsn.insn;
 		preempt_enable_no_resched();
 		return 1;
 	}
@@ -368,7 +368,7 @@ no_kprobe:
 	asm volatile ( ".global kretprobe_trampoline\n"
 			"kretprobe_trampoline: \n"
 			"	pushf\n"
-			/* skip cs, eip, orig_eax */
+			/* skip cs, ip, orig_ax */
 			"	subl $12, %esp\n"
 			"	pushl %fs\n"
 			"	pushl %ds\n"
@@ -382,10 +382,10 @@ no_kprobe:
 			"	pushl %ebx\n"
 			"	movl %esp, %eax\n"
 			"	call trampoline_handler\n"
-			/* move eflags to cs */
+			/* move flags to cs */
 			"	movl 52(%esp), %edx\n"
 			"	movl %edx, 48(%esp)\n"
-			/* save true return address on eflags */
+			/* save true return address on flags */
 			"	movl %eax, 52(%esp)\n"
 			"	popl %ebx\n"
 			"	popl %ecx\n"
@@ -394,7 +394,7 @@ no_kprobe:
 			"	popl %edi\n"
 			"	popl %ebp\n"
 			"	popl %eax\n"
-			/* skip eip, orig_eax, es, ds, fs */
+			/* skip ip, orig_ax, es, ds, fs */
 			"	addl $20, %esp\n"
 			"	popf\n"
 			"	ret\n");
@@ -415,9 +415,9 @@ fastcall void *__kprobes trampoline_handler(struct pt_regs *regs)
 	spin_lock_irqsave(&kretprobe_lock, flags);
 	head = kretprobe_inst_table_head(current);
 	/* fixup registers */
-	regs->xcs = __KERNEL_CS | get_kernel_rpl();
-	regs->eip = trampoline_address;
-	regs->orig_eax = 0xffffffff;
+	regs->cs = __KERNEL_CS | get_kernel_rpl();
+	regs->ip = trampoline_address;
+	regs->orig_ax = 0xffffffff;
 
 	/*
 	 * It is possible to have multiple instances associated with a given
@@ -478,11 +478,11 @@ fastcall void *__kprobes trampoline_handler(struct pt_regs *regs)
  * interrupt.  We have to fix up the stack as follows:
  *
  * 0) Except in the case of absolute or indirect jump or call instructions,
- * the new eip is relative to the copied instruction.  We need to make
+ * the new ip is relative to the copied instruction.  We need to make
  * it relative to the original instruction.
  *
  * 1) If the single-stepped instruction was pushfl, then the TF and IF
- * flags are set in the just-pushed eflags, and may need to be cleared.
+ * flags are set in the just-pushed flags, and may need to be cleared.
  *
  * 2) If the single-stepped instruction was a call, the return address
  * that is atop the stack is the address following the copied instruction.
@@ -493,11 +493,11 @@ fastcall void *__kprobes trampoline_handler(struct pt_regs *regs)
 static void __kprobes resume_execution(struct kprobe *p,
 		struct pt_regs *regs, struct kprobe_ctlblk *kcb)
 {
-	unsigned long *tos = (unsigned long *)&regs->esp;
+	unsigned long *tos = (unsigned long *)&regs->sp;
 	unsigned long copy_eip = (unsigned long)p->ainsn.insn;
 	unsigned long orig_eip = (unsigned long)p->addr;
 
-	regs->eflags &= ~TF_MASK;
+	regs->flags &= ~TF_MASK;
 	switch (p->ainsn.insn[0]) {
 	case 0x9c:		/* pushfl */
 		*tos &= ~(TF_MASK | IF_MASK);
@@ -508,8 +508,8 @@ static void __kprobes resume_execution(struct kprobe *p,
 	case 0xca:
 	case 0xcb:
 	case 0xcf:
-	case 0xea:		/* jmp absolute -- eip is correct */
-		/* eip is already adjusted, no more changes required */
+	case 0xea:		/* jmp absolute -- ip is correct */
+		/* ip is already adjusted, no more changes required */
 		p->ainsn.boostable = 1;
 		goto no_change;
 	case 0xe8:		/* call relative - Fix return addr */
@@ -522,14 +522,14 @@ static void __kprobes resume_execution(struct kprobe *p,
 		if ((p->ainsn.insn[1] & 0x30) == 0x10) {
 			/*
 			 * call absolute, indirect
-			 * Fix return addr; eip is correct.
+			 * Fix return addr; ip is correct.
 			 * But this is not boostable
 			 */
 			*tos = orig_eip + (*tos - copy_eip);
 			goto no_change;
 		} else if (((p->ainsn.insn[1] & 0x31) == 0x20) ||	/* jmp near, absolute indirect */
 			   ((p->ainsn.insn[1] & 0x31) == 0x21)) {	/* jmp far, absolute indirect */
-			/* eip is correct. And this is boostable */
+			/* ip is correct. And this is boostable */
 			p->ainsn.boostable = 1;
 			goto no_change;
 		}
@@ -538,21 +538,21 @@ static void __kprobes resume_execution(struct kprobe *p,
 	}
 
 	if (p->ainsn.boostable == 0) {
-		if ((regs->eip > copy_eip) &&
-		    (regs->eip - copy_eip) + 5 < MAX_INSN_SIZE) {
+		if ((regs->ip > copy_eip) &&
+		    (regs->ip - copy_eip) + 5 < MAX_INSN_SIZE) {
 			/*
 			 * These instructions can be executed directly if it
 			 * jumps back to correct address.
 			 */
-			set_jmp_op((void *)regs->eip,
-				   (void *)orig_eip + (regs->eip - copy_eip));
+			set_jmp_op((void *)regs->ip,
+				   (void *)orig_eip + (regs->ip - copy_eip));
 			p->ainsn.boostable = 1;
 		} else {
 			p->ainsn.boostable = -1;
 		}
 	}
 
-	regs->eip = orig_eip + (regs->eip - copy_eip);
+	regs->ip = orig_eip + (regs->ip - copy_eip);
 
 no_change:
 	restore_btf();
@@ -578,8 +578,8 @@ static int __kprobes post_kprobe_handler(struct pt_regs *regs)
 	}
 
 	resume_execution(cur, regs, kcb);
-	regs->eflags |= kcb->kprobe_saved_eflags;
-	trace_hardirqs_fixup_flags(regs->eflags);
+	regs->flags |= kcb->kprobe_saved_eflags;
+	trace_hardirqs_fixup_flags(regs->flags);
 
 	/*Restore back the original saved kprobes variables and continue. */
 	if (kcb->kprobe_status == KPROBE_REENTER) {
@@ -591,11 +591,11 @@ out:
 	preempt_enable_no_resched();
 
 	/*
-	 * if somebody else is singlestepping across a probe point, eflags
+	 * if somebody else is singlestepping across a probe point, flags
 	 * will have TF set, in which case, continue the remaining processing
 	 * of do_debug, as if this is not a probe hit.
 	 */
-	if (regs->eflags & TF_MASK)
+	if (regs->flags & TF_MASK)
 		return 0;
 
 	return 1;
@@ -612,12 +612,12 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 		/*
 		 * We are here because the instruction being single
 		 * stepped caused a page fault. We reset the current
-		 * kprobe and the eip points back to the probe address
+		 * kprobe and the ip points back to the probe address
 		 * and allow the page fault handler to continue as a
 		 * normal page fault.
 		 */
-		regs->eip = (unsigned long)cur->addr;
-		regs->eflags |= kcb->kprobe_old_eflags;
+		regs->ip = (unsigned long)cur->addr;
+		regs->flags |= kcb->kprobe_old_eflags;
 		if (kcb->kprobe_status == KPROBE_REENTER)
 			restore_previous_kprobe(kcb);
 		else
@@ -703,7 +703,7 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 
 	kcb->jprobe_saved_regs = *regs;
-	kcb->jprobe_saved_esp = &regs->esp;
+	kcb->jprobe_saved_esp = &regs->sp;
 	addr = (unsigned long)(kcb->jprobe_saved_esp);
 
 	/*
@@ -715,9 +715,9 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	 */
 	memcpy(kcb->jprobes_stack, (kprobe_opcode_t *)addr,
 			MIN_STACK_SIZE(addr));
-	regs->eflags &= ~IF_MASK;
+	regs->flags &= ~IF_MASK;
 	trace_hardirqs_off();
-	regs->eip = (unsigned long)(jp->entry);
+	regs->ip = (unsigned long)(jp->entry);
 	return 1;
 }
 
@@ -736,15 +736,15 @@ void __kprobes jprobe_return(void)
 int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 {
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-	u8 *addr = (u8 *) (regs->eip - 1);
+	u8 *addr = (u8 *) (regs->ip - 1);
 	unsigned long stack_addr = (unsigned long)(kcb->jprobe_saved_esp);
 	struct jprobe *jp = container_of(p, struct jprobe, kp);
 
 	if ((addr > (u8 *) jprobe_return) && (addr < (u8 *) jprobe_return_end)) {
-		if (&regs->esp != kcb->jprobe_saved_esp) {
+		if (&regs->sp != kcb->jprobe_saved_esp) {
 			struct pt_regs *saved_regs = &kcb->jprobe_saved_regs;
-			printk("current esp %p does not match saved esp %p\n",
-			       &regs->esp, kcb->jprobe_saved_esp);
+			printk("current sp %p does not match saved sp %p\n",
+			       &regs->sp, kcb->jprobe_saved_esp);
 			printk("Saved registers for jprobe %p\n", jp);
 			show_registers(saved_regs);
 			printk("Current registers\n");
diff --git a/arch/x86/kernel/kprobes_64.c b/arch/x86/kernel/kprobes_64.c
index 10d66e323c7d..f6837cd3bed5 100644
--- a/arch/x86/kernel/kprobes_64.c
+++ b/arch/x86/kernel/kprobes_64.c
@@ -251,7 +251,7 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
 {
 	__get_cpu_var(current_kprobe) = p;
 	kcb->kprobe_saved_rflags = kcb->kprobe_old_rflags
-		= (regs->eflags & (TF_MASK | IF_MASK));
+		= (regs->flags & (TF_MASK | IF_MASK));
 	if (is_IF_modifier(p->ainsn.insn))
 		kcb->kprobe_saved_rflags &= ~IF_MASK;
 }
@@ -271,20 +271,20 @@ static __always_inline void restore_btf(void)
 static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 {
 	clear_btf();
-	regs->eflags |= TF_MASK;
-	regs->eflags &= ~IF_MASK;
+	regs->flags |= TF_MASK;
+	regs->flags &= ~IF_MASK;
 	/*single step inline if the instruction is an int3*/
 	if (p->opcode == BREAKPOINT_INSTRUCTION)
-		regs->rip = (unsigned long)p->addr;
+		regs->ip = (unsigned long)p->addr;
 	else
-		regs->rip = (unsigned long)p->ainsn.insn;
+		regs->ip = (unsigned long)p->ainsn.insn;
 }
 
 /* Called with kretprobe_lock held */
 void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 				      struct pt_regs *regs)
 {
-	unsigned long *sara = (unsigned long *)regs->rsp;
+	unsigned long *sara = (unsigned long *)regs->sp;
 
 	ri->ret_addr = (kprobe_opcode_t *) *sara;
 	/* Replace the return addr with trampoline addr */
@@ -295,7 +295,7 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
 {
 	struct kprobe *p;
 	int ret = 0;
-	kprobe_opcode_t *addr = (kprobe_opcode_t *)(regs->rip - sizeof(kprobe_opcode_t));
+	kprobe_opcode_t *addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
 	struct kprobe_ctlblk *kcb;
 
 	/*
@@ -311,8 +311,8 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
 		if (p) {
 			if (kcb->kprobe_status == KPROBE_HIT_SS &&
 				*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
-				regs->eflags &= ~TF_MASK;
-				regs->eflags |= kcb->kprobe_saved_rflags;
+				regs->flags &= ~TF_MASK;
+				regs->flags |= kcb->kprobe_saved_rflags;
 				goto no_kprobe;
 			} else if (kcb->kprobe_status == KPROBE_HIT_SSDONE) {
 				/* TODO: Provide re-entrancy from
@@ -321,7 +321,7 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
 				 * the instruction of the new probe.
 				 */
 				arch_disarm_kprobe(p);
-				regs->rip = (unsigned long)p->addr;
+				regs->ip = (unsigned long)p->addr;
 				reset_current_kprobe();
 				ret = 1;
 			} else {
@@ -345,7 +345,7 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
 			 * another cpu right after we hit, no further
 			 * handling of this interrupt is appropriate
 			 */
-				regs->rip = (unsigned long)addr;
+				regs->ip = (unsigned long)addr;
 				ret = 1;
 				goto no_kprobe;
 			}
@@ -369,7 +369,7 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
 			 * Back up over the (now missing) int3 and run
 			 * the original instruction.
 			 */
-			regs->rip = (unsigned long)addr;
+			regs->ip = (unsigned long)addr;
 			ret = 1;
 		}
 		/* Not one of ours: let kernel handle it */
@@ -454,7 +454,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
 	}
 
 	kretprobe_assert(ri, orig_ret_address, trampoline_address);
-	regs->rip = orig_ret_address;
+	regs->ip = orig_ret_address;
 
 	reset_current_kprobe();
 	spin_unlock_irqrestore(&kretprobe_lock, flags);
@@ -484,11 +484,11 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
  * interrupt.  We have to fix up the stack as follows:
  *
  * 0) Except in the case of absolute or indirect jump or call instructions,
- * the new rip is relative to the copied instruction.  We need to make
+ * the new ip is relative to the copied instruction.  We need to make
  * it relative to the original instruction.
  *
  * 1) If the single-stepped instruction was pushfl, then the TF and IF
- * flags are set in the just-pushed eflags, and may need to be cleared.
+ * flags are set in the just-pushed flags, and may need to be cleared.
  *
  * 2) If the single-stepped instruction was a call, the return address
  * that is atop the stack is the address following the copied instruction.
@@ -497,7 +497,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
 static void __kprobes resume_execution(struct kprobe *p,
 		struct pt_regs *regs, struct kprobe_ctlblk *kcb)
 {
-	unsigned long *tos = (unsigned long *)regs->rsp;
+	unsigned long *tos = (unsigned long *)regs->sp;
 	unsigned long copy_rip = (unsigned long)p->ainsn.insn;
 	unsigned long orig_rip = (unsigned long)p->addr;
 	kprobe_opcode_t *insn = p->ainsn.insn;
@@ -506,7 +506,7 @@ static void __kprobes resume_execution(struct kprobe *p,
 	if (*insn >= 0x40 && *insn <= 0x4f)
 		insn++;
 
-	regs->eflags &= ~TF_MASK;
+	regs->flags &= ~TF_MASK;
 	switch (*insn) {
 	case 0x9c:	/* pushfl */
 		*tos &= ~(TF_MASK | IF_MASK);
@@ -538,7 +538,8 @@ static void __kprobes resume_execution(struct kprobe *p,
 		break;
 	}
 
-	regs->rip = orig_rip + (regs->rip - copy_rip);
+	regs->ip = orig_rip + (regs->ip - copy_rip);
+
 no_change:
 	restore_btf();
 
@@ -559,8 +560,8 @@ int __kprobes post_kprobe_handler(struct pt_regs *regs)
 	}
 
 	resume_execution(cur, regs, kcb);
-	regs->eflags |= kcb->kprobe_saved_rflags;
-	trace_hardirqs_fixup_flags(regs->eflags);
+	regs->flags |= kcb->kprobe_saved_rflags;
+	trace_hardirqs_fixup_flags(regs->flags);
 
 	/* Restore the original saved kprobes variables and continue. */
 	if (kcb->kprobe_status == KPROBE_REENTER) {
@@ -572,11 +573,11 @@ out:
 	preempt_enable_no_resched();
 
 	/*
-	 * if somebody else is singlestepping across a probe point, eflags
+	 * if somebody else is singlestepping across a probe point, flags
 	 * will have TF set, in which case, continue the remaining processing
 	 * of do_debug, as if this is not a probe hit.
 	 */
-	if (regs->eflags & TF_MASK)
+	if (regs->flags & TF_MASK)
 		return 0;
 
 	return 1;
@@ -594,12 +595,12 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 		/*
 		 * We are here because the instruction being single
 		 * stepped caused a page fault. We reset the current
-		 * kprobe and the rip points back to the probe address
+		 * kprobe and the ip points back to the probe address
 		 * and allow the page fault handler to continue as a
 		 * normal page fault.
 		 */
-		regs->rip = (unsigned long)cur->addr;
-		regs->eflags |= kcb->kprobe_old_rflags;
+		regs->ip = (unsigned long)cur->addr;
+		regs->flags |= kcb->kprobe_old_rflags;
 		if (kcb->kprobe_status == KPROBE_REENTER)
 			restore_previous_kprobe(kcb);
 		else
@@ -629,9 +630,9 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 		 * In case the user-specified fault handler returned
 		 * zero, try to fix up.
 		 */
-		fixup = search_exception_tables(regs->rip);
+		fixup = search_exception_tables(regs->ip);
 		if (fixup) {
-			regs->rip = fixup->fixup;
+			regs->ip = fixup->fixup;
 			return 1;
 		}
 
@@ -688,7 +689,7 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 
 	kcb->jprobe_saved_regs = *regs;
-	kcb->jprobe_saved_rsp = (long *) regs->rsp;
+	kcb->jprobe_saved_rsp = (long *) regs->sp;
 	addr = (unsigned long)(kcb->jprobe_saved_rsp);
 	/*
 	 * As Linus pointed out, gcc assumes that the callee
@@ -699,9 +700,9 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	 */
 	memcpy(kcb->jprobes_stack, (kprobe_opcode_t *)addr,
 			MIN_STACK_SIZE(addr));
-	regs->eflags &= ~IF_MASK;
+	regs->flags &= ~IF_MASK;
 	trace_hardirqs_off();
-	regs->rip = (unsigned long)(jp->entry);
+	regs->ip = (unsigned long)(jp->entry);
 	return 1;
 }
 
@@ -720,15 +721,15 @@ void __kprobes jprobe_return(void)
 int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 {
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-	u8 *addr = (u8 *) (regs->rip - 1);
+	u8 *addr = (u8 *) (regs->ip - 1);
 	unsigned long stack_addr = (unsigned long)(kcb->jprobe_saved_rsp);
 	struct jprobe *jp = container_of(p, struct jprobe, kp);
 
 	if ((addr > (u8 *) jprobe_return) && (addr < (u8 *) jprobe_return_end)) {
-		if ((unsigned long *)regs->rsp != kcb->jprobe_saved_rsp) {
+		if ((unsigned long *)regs->sp != kcb->jprobe_saved_rsp) {
 			struct pt_regs *saved_regs = &kcb->jprobe_saved_regs;
-			printk("current rsp %p does not match saved rsp %p\n",
-			       (long *)regs->rsp, kcb->jprobe_saved_rsp);
+			printk("current sp %p does not match saved sp %p\n",
+			       (long *)regs->sp, kcb->jprobe_saved_rsp);
 			printk("Saved registers for jprobe %p\n", jp);
 			show_registers(saved_regs);
 			printk("Current registers\n");
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index d5462f228daf..c9f28e02e86d 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -265,13 +265,13 @@ EXPORT_SYMBOL_GPL(cpu_idle_wait);
  * New with Core Duo processors, MWAIT can take some hints based on CPU
  * capability.
  */
-void mwait_idle_with_hints(unsigned long eax, unsigned long ecx)
+void mwait_idle_with_hints(unsigned long ax, unsigned long cx)
 {
 	if (!need_resched()) {
 		__monitor((void *)&current_thread_info()->flags, 0, 0);
 		smp_mb();
 		if (!need_resched())
-			__mwait(eax, ecx);
+			__mwait(ax, cx);
 	}
 }
 
@@ -320,15 +320,15 @@ void __show_registers(struct pt_regs *regs, int all)
 {
 	unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
 	unsigned long d0, d1, d2, d3, d6, d7;
-	unsigned long esp;
+	unsigned long sp;
 	unsigned short ss, gs;
 
 	if (user_mode_vm(regs)) {
-		esp = regs->esp;
-		ss = regs->xss & 0xffff;
+		sp = regs->sp;
+		ss = regs->ss & 0xffff;
 		savesegment(gs, gs);
 	} else {
-		esp = (unsigned long) (&regs->esp);
+		sp = (unsigned long) (&regs->sp);
 		savesegment(ss, ss);
 		savesegment(gs, gs);
 	}
@@ -341,17 +341,17 @@ void __show_registers(struct pt_regs *regs, int all)
 			init_utsname()->version);
 
 	printk("EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
-			0xffff & regs->xcs, regs->eip, regs->eflags,
+			0xffff & regs->cs, regs->ip, regs->flags,
 			smp_processor_id());
-	print_symbol("EIP is at %s\n", regs->eip);
+	print_symbol("EIP is at %s\n", regs->ip);
 
 	printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
-		regs->eax, regs->ebx, regs->ecx, regs->edx);
+		regs->ax, regs->bx, regs->cx, regs->dx);
 	printk("ESI: %08lx EDI: %08lx EBP: %08lx ESP: %08lx\n",
-		regs->esi, regs->edi, regs->ebp, esp);
+		regs->si, regs->di, regs->bp, sp);
 	printk(" DS: %04x ES: %04x FS: %04x GS: %04x SS: %04x\n",
-	       regs->xds & 0xffff, regs->xes & 0xffff,
-	       regs->xfs & 0xffff, gs, ss);
+	       regs->ds & 0xffff, regs->es & 0xffff,
+	       regs->fs & 0xffff, gs, ss);
 
 	if (!all)
 		return;
@@ -379,12 +379,12 @@ void __show_registers(struct pt_regs *regs, int all)
 void show_regs(struct pt_regs *regs)
 {
 	__show_registers(regs, 1);
-	show_trace(NULL, regs, &regs->esp);
+	show_trace(NULL, regs, &regs->sp);
 }
 
 /*
- * This gets run with %ebx containing the
- * function to call, and %edx containing
+ * This gets run with %bx containing the
+ * function to call, and %dx containing
  * the "args".
  */
 extern void kernel_thread_helper(void);
@@ -398,16 +398,16 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
 
 	memset(&regs, 0, sizeof(regs));
 
-	regs.ebx = (unsigned long) fn;
-	regs.edx = (unsigned long) arg;
+	regs.bx = (unsigned long) fn;
+	regs.dx = (unsigned long) arg;
 
-	regs.xds = __USER_DS;
-	regs.xes = __USER_DS;
-	regs.xfs = __KERNEL_PERCPU;
-	regs.orig_eax = -1;
-	regs.eip = (unsigned long) kernel_thread_helper;
-	regs.xcs = __KERNEL_CS | get_kernel_rpl();
-	regs.eflags = X86_EFLAGS_IF | X86_EFLAGS_SF | X86_EFLAGS_PF | 0x2;
+	regs.ds = __USER_DS;
+	regs.es = __USER_DS;
+	regs.fs = __KERNEL_PERCPU;
+	regs.orig_ax = -1;
+	regs.ip = (unsigned long) kernel_thread_helper;
+	regs.cs = __KERNEL_CS | get_kernel_rpl();
+	regs.flags = X86_EFLAGS_IF | X86_EFLAGS_SF | X86_EFLAGS_PF | 0x2;
 
 	/* Ok, create the new process.. */
 	return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
@@ -470,7 +470,7 @@ void prepare_to_copy(struct task_struct *tsk)
 	unlazy_fpu(tsk);
 }
 
-int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
+int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 	unsigned long unused,
 	struct task_struct * p, struct pt_regs * regs)
 {
@@ -480,8 +480,8 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
 
 	childregs = task_pt_regs(p);
 	*childregs = *regs;
-	childregs->eax = 0;
-	childregs->esp = esp;
+	childregs->ax = 0;
+	childregs->sp = sp;
 
 	p->thread.esp = (unsigned long) childregs;
 	p->thread.esp0 = (unsigned long) (childregs+1);
@@ -508,7 +508,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
 	 */
 	if (clone_flags & CLONE_SETTLS)
 		err = do_set_thread_area(p, -1,
-			(struct user_desc __user *)childregs->esi, 0);
+			(struct user_desc __user *)childregs->si, 0);
 
 	if (err && p->thread.io_bitmap_ptr) {
 		kfree(p->thread.io_bitmap_ptr);
@@ -527,7 +527,7 @@ void dump_thread(struct pt_regs * regs, struct user * dump)
 /* changed the size calculations - should hopefully work better. lbt */
 	dump->magic = CMAGIC;
 	dump->start_code = 0;
-	dump->start_stack = regs->esp & ~(PAGE_SIZE - 1);
+	dump->start_stack = regs->sp & ~(PAGE_SIZE - 1);
 	dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
 	dump->u_dsize = ((unsigned long) (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
 	dump->u_dsize -= dump->u_tsize;
@@ -538,23 +538,23 @@ void dump_thread(struct pt_regs * regs, struct user * dump)
 	if (dump->start_stack < TASK_SIZE)
 		dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
 
-	dump->regs.ebx = regs->ebx;
-	dump->regs.ecx = regs->ecx;
-	dump->regs.edx = regs->edx;
-	dump->regs.esi = regs->esi;
-	dump->regs.edi = regs->edi;
-	dump->regs.ebp = regs->ebp;
-	dump->regs.eax = regs->eax;
-	dump->regs.ds = regs->xds;
-	dump->regs.es = regs->xes;
-	dump->regs.fs = regs->xfs;
+	dump->regs.ebx = regs->bx;
+	dump->regs.ecx = regs->cx;
+	dump->regs.edx = regs->dx;
+	dump->regs.esi = regs->si;
+	dump->regs.edi = regs->di;
+	dump->regs.ebp = regs->bp;
+	dump->regs.eax = regs->ax;
+	dump->regs.ds = regs->ds;
+	dump->regs.es = regs->es;
+	dump->regs.fs = regs->fs;
 	savesegment(gs,dump->regs.gs);
-	dump->regs.orig_eax = regs->orig_eax;
-	dump->regs.eip = regs->eip;
-	dump->regs.cs = regs->xcs;
-	dump->regs.eflags = regs->eflags;
-	dump->regs.esp = regs->esp;
-	dump->regs.ss = regs->xss;
+	dump->regs.orig_eax = regs->orig_ax;
+	dump->regs.eip = regs->ip;
+	dump->regs.cs = regs->cs;
+	dump->regs.eflags = regs->flags;
+	dump->regs.esp = regs->sp;
+	dump->regs.ss = regs->ss;
 
 	dump->u_fpvalid = dump_fpu (regs, &dump->i387);
 }
@@ -566,10 +566,10 @@ EXPORT_SYMBOL(dump_thread);
 int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
 {
 	struct pt_regs ptregs = *task_pt_regs(tsk);
-	ptregs.xcs &= 0xffff;
-	ptregs.xds &= 0xffff;
-	ptregs.xes &= 0xffff;
-	ptregs.xss &= 0xffff;
+	ptregs.cs &= 0xffff;
+	ptregs.ds &= 0xffff;
+	ptregs.es &= 0xffff;
+	ptregs.ss &= 0xffff;
 
 	elf_core_copy_regs(regs, &ptregs);
 
@@ -684,7 +684,7 @@ __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
  * More important, however, is the fact that this allows us much
  * more flexibility.
  *
- * The return value (in %eax) will be the "prev" task after
+ * The return value (in %ax) will be the "prev" task after
  * the task-switch, and shows up in ret_from_fork in entry.S,
  * for example.
  */
@@ -771,7 +771,7 @@ struct task_struct fastcall * __switch_to(struct task_struct *prev_p, struct tas
 
 asmlinkage int sys_fork(struct pt_regs regs)
 {
-	return do_fork(SIGCHLD, regs.esp, &regs, 0, NULL, NULL);
+	return do_fork(SIGCHLD, regs.sp, &regs, 0, NULL, NULL);
 }
 
 asmlinkage int sys_clone(struct pt_regs regs)
@@ -780,12 +780,12 @@ asmlinkage int sys_clone(struct pt_regs regs)
 	unsigned long newsp;
 	int __user *parent_tidptr, *child_tidptr;
 
-	clone_flags = regs.ebx;
-	newsp = regs.ecx;
-	parent_tidptr = (int __user *)regs.edx;
-	child_tidptr = (int __user *)regs.edi;
+	clone_flags = regs.bx;
+	newsp = regs.cx;
+	parent_tidptr = (int __user *)regs.dx;
+	child_tidptr = (int __user *)regs.di;
 	if (!newsp)
-		newsp = regs.esp;
+		newsp = regs.sp;
 	return do_fork(clone_flags, newsp, &regs, 0, parent_tidptr, child_tidptr);
 }
 
@@ -801,7 +801,7 @@ asmlinkage int sys_clone(struct pt_regs regs)
  */
 asmlinkage int sys_vfork(struct pt_regs regs)
 {
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs.esp, &regs, 0, NULL, NULL);
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs.sp, &regs, 0, NULL, NULL);
 }
 
 /*
@@ -812,13 +812,13 @@ asmlinkage int sys_execve(struct pt_regs regs)
 	int error;
 	char * filename;
 
-	filename = getname((char __user *) regs.ebx);
+	filename = getname((char __user *) regs.bx);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
 	error = do_execve(filename,
-			(char __user * __user *) regs.ecx,
-			(char __user * __user *) regs.edx,
+			(char __user * __user *) regs.cx,
+			(char __user * __user *) regs.dx,
 			&regs);
 	if (error == 0) {
 		/* Make sure we don't return using sysenter.. */
@@ -834,24 +834,24 @@ out:
 
 unsigned long get_wchan(struct task_struct *p)
 {
-	unsigned long ebp, esp, eip;
+	unsigned long bp, sp, ip;
 	unsigned long stack_page;
 	int count = 0;
 	if (!p || p == current || p->state == TASK_RUNNING)
 		return 0;
 	stack_page = (unsigned long)task_stack_page(p);
-	esp = p->thread.esp;
-	if (!stack_page || esp < stack_page || esp > top_esp+stack_page)
+	sp = p->thread.esp;
+	if (!stack_page || sp < stack_page || sp > top_esp+stack_page)
 		return 0;
-	/* include/asm-i386/system.h:switch_to() pushes ebp last. */
-	ebp = *(unsigned long *) esp;
+	/* include/asm-i386/system.h:switch_to() pushes bp last. */
+	bp = *(unsigned long *) sp;
 	do {
-		if (ebp < stack_page || ebp > top_ebp+stack_page)
+		if (bp < stack_page || bp > top_ebp+stack_page)
 			return 0;
-		eip = *(unsigned long *) (ebp+4);
-		if (!in_sched_functions(eip))
-			return eip;
-		ebp = *(unsigned long *) ebp;
+		ip = *(unsigned long *) (bp+4);
+		if (!in_sched_functions(ip))
+			return ip;
+		bp = *(unsigned long *) bp;
 	} while (count++ < 16);
 	return 0;
 }
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index ae5eca17aa3c..efbb1a2eab97 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -257,13 +257,13 @@ void cpu_idle(void)
  * New with Core Duo processors, MWAIT can take some hints based on CPU
  * capability.
  */
-void mwait_idle_with_hints(unsigned long eax, unsigned long ecx)
+void mwait_idle_with_hints(unsigned long ax, unsigned long cx)
 {
 	if (!need_resched()) {
 		__monitor((void *)&current_thread_info()->flags, 0, 0);
 		smp_mb();
 		if (!need_resched())
-			__mwait(eax, ecx);
+			__mwait(ax, cx);
 	}
 }
 
@@ -330,16 +330,16 @@ void __show_regs(struct pt_regs * regs)
 		init_utsname()->release,
 		(int)strcspn(init_utsname()->version, " "),
 		init_utsname()->version);
-	printk("RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->rip);
-	printk_address(regs->rip); 
-	printk("RSP: %04lx:%016lx  EFLAGS: %08lx\n", regs->ss, regs->rsp,
-		regs->eflags);
+	printk("RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip);
+	printk_address(regs->ip);
+	printk("RSP: %04lx:%016lx  EFLAGS: %08lx\n", regs->ss, regs->sp,
+		regs->flags);
 	printk("RAX: %016lx RBX: %016lx RCX: %016lx\n",
-	       regs->rax, regs->rbx, regs->rcx);
+	       regs->ax, regs->bx, regs->cx);
 	printk("RDX: %016lx RSI: %016lx RDI: %016lx\n",
-	       regs->rdx, regs->rsi, regs->rdi); 
+	       regs->dx, regs->si, regs->di);
 	printk("RBP: %016lx R08: %016lx R09: %016lx\n",
-	       regs->rbp, regs->r8, regs->r9); 
+	       regs->bp, regs->r8, regs->r9);
 	printk("R10: %016lx R11: %016lx R12: %016lx\n",
 	       regs->r10, regs->r11, regs->r12); 
 	printk("R13: %016lx R14: %016lx R15: %016lx\n",
@@ -476,7 +476,7 @@ void prepare_to_copy(struct task_struct *tsk)
 	unlazy_fpu(tsk);
 }
 
-int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp, 
+int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 		unsigned long unused,
 	struct task_struct * p, struct pt_regs * regs)
 {
@@ -488,10 +488,10 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp,
 			(THREAD_SIZE + task_stack_page(p))) - 1;
 	*childregs = *regs;
 
-	childregs->rax = 0;
-	childregs->rsp = rsp;
-	if (rsp == ~0UL)
-		childregs->rsp = (unsigned long)childregs;
+	childregs->ax = 0;
+	childregs->sp = sp;
+	if (sp == ~0UL)
+		childregs->sp = (unsigned long)childregs;
 
 	p->thread.rsp = (unsigned long) childregs;
 	p->thread.rsp0 = (unsigned long) (childregs+1);
@@ -525,7 +525,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp,
 #ifdef CONFIG_IA32_EMULATION
 		if (test_thread_flag(TIF_IA32))
 			err = do_set_thread_area(p, -1,
-				(struct user_desc __user *)childregs->rsi, 0);
+				(struct user_desc __user *)childregs->si, 0);
 		else 			
 #endif	 
 			err = do_arch_prctl(p, ARCH_SET_FS, childregs->r8); 
@@ -732,7 +732,7 @@ void set_personality_64bit(void)
 
 asmlinkage long sys_fork(struct pt_regs *regs)
 {
-	return do_fork(SIGCHLD, regs->rsp, regs, 0, NULL, NULL);
+	return do_fork(SIGCHLD, regs->sp, regs, 0, NULL, NULL);
 }
 
 asmlinkage long
@@ -740,7 +740,7 @@ sys_clone(unsigned long clone_flags, unsigned long newsp,
 	  void __user *parent_tid, void __user *child_tid, struct pt_regs *regs)
 {
 	if (!newsp)
-		newsp = regs->rsp;
+		newsp = regs->sp;
 	return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
 }
 
@@ -756,14 +756,14 @@ sys_clone(unsigned long clone_flags, unsigned long newsp,
  */
 asmlinkage long sys_vfork(struct pt_regs *regs)
 {
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->rsp, regs, 0,
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->sp, regs, 0,
 		    NULL, NULL);
 }
 
 unsigned long get_wchan(struct task_struct *p)
 {
 	unsigned long stack;
-	u64 fp,rip;
+	u64 fp,ip;
 	int count = 0;
 
 	if (!p || p == current || p->state==TASK_RUNNING)
@@ -776,9 +776,9 @@ unsigned long get_wchan(struct task_struct *p)
 		if (fp < (unsigned long)stack ||
 		    fp > (unsigned long)stack+THREAD_SIZE)
 			return 0; 
-		rip = *(u64 *)(fp+8); 
-		if (!in_sched_functions(rip))
-			return rip; 
+		ip = *(u64 *)(fp+8);
+		if (!in_sched_functions(ip))
+			return ip;
 		fp = *(u64 *)fp; 
 	} while (count++ < 16); 
 	return 0;
diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index 512f8412b799..f81e2f1827d4 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -39,10 +39,10 @@
 
 static long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
 {
-	BUILD_BUG_ON(offsetof(struct pt_regs, ebx) != 0);
+	BUILD_BUG_ON(offsetof(struct pt_regs, bx) != 0);
 	if (regno > FS)
 		--regno;
-	return &regs->ebx + regno;
+	return &regs->bx + regno;
 }
 
 static int putreg(struct task_struct *child,
@@ -80,7 +80,7 @@ static int putreg(struct task_struct *child,
 				clear_tsk_thread_flag(child, TIF_FORCED_TF);
 			else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
 				value |= X86_EFLAGS_TF;
-			value |= regs->eflags & ~FLAG_MASK;
+			value |= regs->flags & ~FLAG_MASK;
 			break;
 	}
 	*pt_regs_access(regs, regno) = value;
@@ -98,7 +98,7 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 			/*
 			 * If the debugger set TF, hide it from the readout.
 			 */
-			retval = regs->eflags;
+			retval = regs->flags;
 			if (test_tsk_thread_flag(child, TIF_FORCED_TF))
 				retval &= ~X86_EFLAGS_TF;
 			break;
@@ -369,8 +369,8 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code)
 	info.si_signo = SIGTRAP;
 	info.si_code = TRAP_BRKPT;
 
-	/* User-mode eip? */
-	info.si_addr = user_mode_vm(regs) ? (void __user *) regs->eip : NULL;
+	/* User-mode ip? */
+	info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL;
 
 	/* Send us the fake SIGTRAP */
 	force_sig_info(SIGTRAP, &info, tsk);
@@ -392,12 +392,12 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit)
 
 	/* do the secure computing check first */
 	if (!entryexit)
-		secure_computing(regs->orig_eax);
+		secure_computing(regs->orig_ax);
 
 	if (unlikely(current->audit_context)) {
 		if (entryexit)
-			audit_syscall_exit(AUDITSC_RESULT(regs->eax),
-						regs->eax);
+			audit_syscall_exit(AUDITSC_RESULT(regs->ax),
+						regs->ax);
 		/* Debug traps, when using PTRACE_SINGLESTEP, must be sent only
 		 * on the syscall exit path. Normally, when TIF_SYSCALL_AUDIT is
 		 * not used, entry.S will call us only on syscall exit, not
@@ -445,13 +445,13 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit)
 	ret = is_sysemu;
 out:
 	if (unlikely(current->audit_context) && !entryexit)
-		audit_syscall_entry(AUDIT_ARCH_I386, regs->orig_eax,
-				    regs->ebx, regs->ecx, regs->edx, regs->esi);
+		audit_syscall_entry(AUDIT_ARCH_I386, regs->orig_ax,
+				    regs->bx, regs->cx, regs->dx, regs->si);
 	if (ret == 0)
 		return 0;
 
-	regs->orig_eax = -1; /* force skip of syscall restarting */
+	regs->orig_ax = -1; /* force skip of syscall restarting */
 	if (unlikely(current->audit_context))
-		audit_syscall_exit(AUDITSC_RESULT(regs->eax), regs->eax);
+		audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax);
 	return 1;
 }
diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index 4ba66d8af717..bee20bb1a6c0 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -119,7 +119,7 @@ static int putreg(struct task_struct *child,
 				clear_tsk_thread_flag(child, TIF_FORCED_TF);
 			else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
 				value |= X86_EFLAGS_TF;
-			value |= regs->eflags & ~FLAG_MASK;
+			value |= regs->flags & ~FLAG_MASK;
 			break;
 		case offsetof(struct user_regs_struct,cs): 
 			if ((value & 3) != 3)
@@ -168,7 +168,7 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 			/*
 			 * If the debugger set TF, hide it from the readout.
 			 */
-			val = regs->eflags;
+			val = regs->flags;
 			if (test_tsk_thread_flag(child, TIF_IA32))
 				val &= 0xffffffff;
 			if (test_tsk_thread_flag(child, TIF_FORCED_TF))
@@ -383,9 +383,9 @@ static void syscall_trace(struct pt_regs *regs)
 {
 
 #if 0
-	printk("trace %s rip %lx rsp %lx rax %d origrax %d caller %lx tiflags %x ptrace %x\n",
+	printk("trace %s ip %lx sp %lx ax %d origrax %d caller %lx tiflags %x ptrace %x\n",
 	       current->comm,
-	       regs->rip, regs->rsp, regs->rax, regs->orig_rax, __builtin_return_address(0),
+	       regs->ip, regs->sp, regs->ax, regs->orig_ax, __builtin_return_address(0),
 	       current_thread_info()->flags, current->ptrace); 
 #endif
 
@@ -405,7 +405,7 @@ static void syscall_trace(struct pt_regs *regs)
 asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 {
 	/* do the secure computing check first */
-	secure_computing(regs->orig_rax);
+	secure_computing(regs->orig_ax);
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE)
 	    && (current->ptrace & PT_PTRACED))
@@ -414,14 +414,14 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 	if (unlikely(current->audit_context)) {
 		if (test_thread_flag(TIF_IA32)) {
 			audit_syscall_entry(AUDIT_ARCH_I386,
-					    regs->orig_rax,
-					    regs->rbx, regs->rcx,
-					    regs->rdx, regs->rsi);
+					    regs->orig_ax,
+					    regs->bx, regs->cx,
+					    regs->dx, regs->si);
 		} else {
 			audit_syscall_entry(AUDIT_ARCH_X86_64,
-					    regs->orig_rax,
-					    regs->rdi, regs->rsi,
-					    regs->rdx, regs->r10);
+					    regs->orig_ax,
+					    regs->di, regs->si,
+					    regs->dx, regs->r10);
 		}
 	}
 }
@@ -429,7 +429,7 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 asmlinkage void syscall_trace_leave(struct pt_regs *regs)
 {
 	if (unlikely(current->audit_context))
-		audit_syscall_exit(AUDITSC_RESULT(regs->rax), regs->rax);
+		audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax);
 
 	if ((test_thread_flag(TIF_SYSCALL_TRACE)
 	     || test_thread_flag(TIF_SINGLESTEP))
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 0a7c812212c9..40fd3515ccf1 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -82,14 +82,14 @@ sys_sigaction(int sig, const struct old_sigaction __user *act,
 }
 
 asmlinkage int
-sys_sigaltstack(unsigned long ebx)
+sys_sigaltstack(unsigned long bx)
 {
 	/* This is needed to make gcc realize it doesn't own the "struct pt_regs" */
-	struct pt_regs *regs = (struct pt_regs *)&ebx;
-	const stack_t __user *uss = (const stack_t __user *)ebx;
-	stack_t __user *uoss = (stack_t __user *)regs->ecx;
+	struct pt_regs *regs = (struct pt_regs *)&bx;
+	const stack_t __user *uss = (const stack_t __user *)bx;
+	stack_t __user *uoss = (stack_t __user *)regs->cx;
 
-	return do_sigaltstack(uss, uoss, regs->esp);
+	return do_sigaltstack(uss, uoss, regs->sp);
 }
 
 
@@ -105,17 +105,17 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax
 	/* Always make any pending restarted system calls return -EINTR */
 	current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
-#define COPY(x)		err |= __get_user(regs->x, &sc->x)
+#define COPY(x)		err |= __get_user(regs->x, &sc->e ## x)
 
 #define COPY_SEG(seg)							\
 	{ unsigned short tmp;						\
 	  err |= __get_user(tmp, &sc->seg);				\
-	  regs->x##seg = tmp; }
+	  regs->seg = tmp; }
 
 #define COPY_SEG_STRICT(seg)						\
 	{ unsigned short tmp;						\
 	  err |= __get_user(tmp, &sc->seg);				\
-	  regs->x##seg = tmp|3; }
+	  regs->seg = tmp|3; }
 
 #define GET_SEG(seg)							\
 	{ unsigned short tmp;						\
@@ -131,22 +131,22 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax
 	COPY_SEG(fs);
 	COPY_SEG(es);
 	COPY_SEG(ds);
-	COPY(edi);
-	COPY(esi);
-	COPY(ebp);
-	COPY(esp);
-	COPY(ebx);
-	COPY(edx);
-	COPY(ecx);
-	COPY(eip);
+	COPY(di);
+	COPY(si);
+	COPY(bp);
+	COPY(sp);
+	COPY(bx);
+	COPY(dx);
+	COPY(cx);
+	COPY(ip);
 	COPY_SEG_STRICT(cs);
 	COPY_SEG_STRICT(ss);
 	
 	{
 		unsigned int tmpflags;
 		err |= __get_user(tmpflags, &sc->eflags);
-		regs->eflags = (regs->eflags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS);
-		regs->orig_eax = -1;		/* disable syscall checks */
+		regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS);
+		regs->orig_ax = -1;		/* disable syscall checks */
 	}
 
 	{
@@ -175,9 +175,9 @@ badframe:
 asmlinkage int sys_sigreturn(unsigned long __unused)
 {
 	struct pt_regs *regs = (struct pt_regs *) &__unused;
-	struct sigframe __user *frame = (struct sigframe __user *)(regs->esp - 8);
+	struct sigframe __user *frame = (struct sigframe __user *)(regs->sp - 8);
 	sigset_t set;
-	int eax;
+	int ax;
 
 	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
 		goto badframe;
@@ -193,17 +193,17 @@ asmlinkage int sys_sigreturn(unsigned long __unused)
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 	
-	if (restore_sigcontext(regs, &frame->sc, &eax))
+	if (restore_sigcontext(regs, &frame->sc, &ax))
 		goto badframe;
-	return eax;
+	return ax;
 
 badframe:
 	if (show_unhandled_signals && printk_ratelimit())
-		printk("%s%s[%d] bad frame in sigreturn frame:%p eip:%lx"
-		       " esp:%lx oeax:%lx\n",
+		printk("%s%s[%d] bad frame in sigreturn frame:%p ip:%lx"
+		       " sp:%lx oeax:%lx\n",
 		    task_pid_nr(current) > 1 ? KERN_INFO : KERN_EMERG,
-		    current->comm, task_pid_nr(current), frame, regs->eip,
-		    regs->esp, regs->orig_eax);
+		    current->comm, task_pid_nr(current), frame, regs->ip,
+		    regs->sp, regs->orig_ax);
 
 	force_sig(SIGSEGV, current);
 	return 0;
@@ -212,9 +212,9 @@ badframe:
 asmlinkage int sys_rt_sigreturn(unsigned long __unused)
 {
 	struct pt_regs *regs = (struct pt_regs *) &__unused;
-	struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(regs->esp - 4);
+	struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(regs->sp - 4);
 	sigset_t set;
-	int eax;
+	int ax;
 
 	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
 		goto badframe;
@@ -227,13 +227,13 @@ asmlinkage int sys_rt_sigreturn(unsigned long __unused)
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 	
-	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &eax))
+	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
 		goto badframe;
 
-	if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->esp) == -EFAULT)
+	if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT)
 		goto badframe;
 
-	return eax;
+	return ax;
 
 badframe:
 	force_sig(SIGSEGV, current);
@@ -250,27 +250,27 @@ setup_sigcontext(struct sigcontext __user *sc, struct _fpstate __user *fpstate,
 {
 	int tmp, err = 0;
 
-	err |= __put_user(regs->xfs, (unsigned int __user *)&sc->fs);
+	err |= __put_user(regs->fs, (unsigned int __user *)&sc->fs);
 	savesegment(gs, tmp);
 	err |= __put_user(tmp, (unsigned int __user *)&sc->gs);
 
-	err |= __put_user(regs->xes, (unsigned int __user *)&sc->es);
-	err |= __put_user(regs->xds, (unsigned int __user *)&sc->ds);
-	err |= __put_user(regs->edi, &sc->edi);
-	err |= __put_user(regs->esi, &sc->esi);
-	err |= __put_user(regs->ebp, &sc->ebp);
-	err |= __put_user(regs->esp, &sc->esp);
-	err |= __put_user(regs->ebx, &sc->ebx);
-	err |= __put_user(regs->edx, &sc->edx);
-	err |= __put_user(regs->ecx, &sc->ecx);
-	err |= __put_user(regs->eax, &sc->eax);
+	err |= __put_user(regs->es, (unsigned int __user *)&sc->es);
+	err |= __put_user(regs->ds, (unsigned int __user *)&sc->ds);
+	err |= __put_user(regs->di, &sc->edi);
+	err |= __put_user(regs->si, &sc->esi);
+	err |= __put_user(regs->bp, &sc->ebp);
+	err |= __put_user(regs->sp, &sc->esp);
+	err |= __put_user(regs->bx, &sc->ebx);
+	err |= __put_user(regs->dx, &sc->edx);
+	err |= __put_user(regs->cx, &sc->ecx);
+	err |= __put_user(regs->ax, &sc->eax);
 	err |= __put_user(current->thread.trap_no, &sc->trapno);
 	err |= __put_user(current->thread.error_code, &sc->err);
-	err |= __put_user(regs->eip, &sc->eip);
-	err |= __put_user(regs->xcs, (unsigned int __user *)&sc->cs);
-	err |= __put_user(regs->eflags, &sc->eflags);
-	err |= __put_user(regs->esp, &sc->esp_at_signal);
-	err |= __put_user(regs->xss, (unsigned int __user *)&sc->ss);
+	err |= __put_user(regs->ip, &sc->eip);
+	err |= __put_user(regs->cs, (unsigned int __user *)&sc->cs);
+	err |= __put_user(regs->flags, &sc->eflags);
+	err |= __put_user(regs->sp, &sc->esp_at_signal);
+	err |= __put_user(regs->ss, (unsigned int __user *)&sc->ss);
 
 	tmp = save_i387(fpstate);
 	if (tmp < 0)
@@ -291,36 +291,36 @@ setup_sigcontext(struct sigcontext __user *sc, struct _fpstate __user *fpstate,
 static inline void __user *
 get_sigframe(struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
 {
-	unsigned long esp;
+	unsigned long sp;
 
 	/* Default to using normal stack */
-	esp = regs->esp;
+	sp = regs->sp;
 
 	/*
 	 * If we are on the alternate signal stack and would overflow it, don't.
 	 * Return an always-bogus address instead so we will die with SIGSEGV.
 	 */
-	if (on_sig_stack(esp) && !likely(on_sig_stack(esp - frame_size)))
+	if (on_sig_stack(sp) && !likely(on_sig_stack(sp - frame_size)))
 		return (void __user *) -1L;
 
 	/* This is the X/Open sanctioned signal stack switching.  */
 	if (ka->sa.sa_flags & SA_ONSTACK) {
-		if (sas_ss_flags(esp) == 0)
-			esp = current->sas_ss_sp + current->sas_ss_size;
+		if (sas_ss_flags(sp) == 0)
+			sp = current->sas_ss_sp + current->sas_ss_size;
 	}
 
 	/* This is the legacy signal stack switching. */
-	else if ((regs->xss & 0xffff) != __USER_DS &&
+	else if ((regs->ss & 0xffff) != __USER_DS &&
 		 !(ka->sa.sa_flags & SA_RESTORER) &&
 		 ka->sa.sa_restorer) {
-		esp = (unsigned long) ka->sa.sa_restorer;
+		sp = (unsigned long) ka->sa.sa_restorer;
 	}
 
-	esp -= frame_size;
+	sp -= frame_size;
 	/* Align the stack pointer according to the i386 ABI,
 	 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
-	esp = ((esp + 4) & -16ul) - 4;
-	return (void __user *) esp;
+	sp = ((sp + 4) & -16ul) - 4;
+	return (void __user *) sp;
 }
 
 /* These symbols are defined with the addresses in the vsyscall page.
@@ -387,16 +387,16 @@ static int setup_frame(int sig, struct k_sigaction *ka,
 		goto give_sigsegv;
 
 	/* Set up registers for signal handler */
-	regs->esp = (unsigned long) frame;
-	regs->eip = (unsigned long) ka->sa.sa_handler;
-	regs->eax = (unsigned long) sig;
-	regs->edx = (unsigned long) 0;
-	regs->ecx = (unsigned long) 0;
+	regs->sp = (unsigned long) frame;
+	regs->ip = (unsigned long) ka->sa.sa_handler;
+	regs->ax = (unsigned long) sig;
+	regs->dx = (unsigned long) 0;
+	regs->cx = (unsigned long) 0;
 
-	regs->xds = __USER_DS;
-	regs->xes = __USER_DS;
-	regs->xss = __USER_DS;
-	regs->xcs = __USER_CS;
+	regs->ds = __USER_DS;
+	regs->es = __USER_DS;
+	regs->ss = __USER_DS;
+	regs->cs = __USER_CS;
 
 	/*
 	 * Clear TF when entering the signal handler, but
@@ -404,13 +404,13 @@ static int setup_frame(int sig, struct k_sigaction *ka,
 	 * The tracer may want to single-step inside the
 	 * handler too.
 	 */
-	regs->eflags &= ~TF_MASK;
+	regs->flags &= ~TF_MASK;
 	if (test_thread_flag(TIF_SINGLESTEP))
 		ptrace_notify(SIGTRAP);
 
 #if DEBUG_SIG
 	printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n",
-		current->comm, current->pid, frame, regs->eip, frame->pretcode);
+		current->comm, current->pid, frame, regs->ip, frame->pretcode);
 #endif
 
 	return 0;
@@ -450,7 +450,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	err |= __put_user(0, &frame->uc.uc_flags);
 	err |= __put_user(0, &frame->uc.uc_link);
 	err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
-	err |= __put_user(sas_ss_flags(regs->esp),
+	err |= __put_user(sas_ss_flags(regs->sp),
 			  &frame->uc.uc_stack.ss_flags);
 	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
 	err |= setup_sigcontext(&frame->uc.uc_mcontext, &frame->fpstate,
@@ -466,7 +466,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	err |= __put_user(restorer, &frame->pretcode);
 	 
 	/*
-	 * This is movl $,%eax ; int $0x80
+	 * This is movl $,%ax ; int $0x80
 	 *
 	 * WE DO NOT USE IT ANY MORE! It's only left here for historical
 	 * reasons and because gdb uses it as a signature to notice
@@ -480,16 +480,16 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 		goto give_sigsegv;
 
 	/* Set up registers for signal handler */
-	regs->esp = (unsigned long) frame;
-	regs->eip = (unsigned long) ka->sa.sa_handler;
-	regs->eax = (unsigned long) usig;
-	regs->edx = (unsigned long) &frame->info;
-	regs->ecx = (unsigned long) &frame->uc;
+	regs->sp = (unsigned long) frame;
+	regs->ip = (unsigned long) ka->sa.sa_handler;
+	regs->ax = (unsigned long) usig;
+	regs->dx = (unsigned long) &frame->info;
+	regs->cx = (unsigned long) &frame->uc;
 
-	regs->xds = __USER_DS;
-	regs->xes = __USER_DS;
-	regs->xss = __USER_DS;
-	regs->xcs = __USER_CS;
+	regs->ds = __USER_DS;
+	regs->es = __USER_DS;
+	regs->ss = __USER_DS;
+	regs->cs = __USER_CS;
 
 	/*
 	 * Clear TF when entering the signal handler, but
@@ -497,13 +497,13 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	 * The tracer may want to single-step inside the
 	 * handler too.
 	 */
-	regs->eflags &= ~TF_MASK;
+	regs->flags &= ~TF_MASK;
 	if (test_thread_flag(TIF_SINGLESTEP))
 		ptrace_notify(SIGTRAP);
 
 #if DEBUG_SIG
 	printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n",
-		current->comm, current->pid, frame, regs->eip, frame->pretcode);
+		current->comm, current->pid, frame, regs->ip, frame->pretcode);
 #endif
 
 	return 0;
@@ -524,23 +524,23 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 	int ret;
 
 	/* Are we from a system call? */
-	if (regs->orig_eax >= 0) {
+	if (regs->orig_ax >= 0) {
 		/* If so, check system call restarting.. */
-		switch (regs->eax) {
+		switch (regs->ax) {
 		        case -ERESTART_RESTARTBLOCK:
 			case -ERESTARTNOHAND:
-				regs->eax = -EINTR;
+				regs->ax = -EINTR;
 				break;
 
 			case -ERESTARTSYS:
 				if (!(ka->sa.sa_flags & SA_RESTART)) {
-					regs->eax = -EINTR;
+					regs->ax = -EINTR;
 					break;
 				}
 			/* fallthrough */
 			case -ERESTARTNOINTR:
-				regs->eax = regs->orig_eax;
-				regs->eip -= 2;
+				regs->ax = regs->orig_ax;
+				regs->ip -= 2;
 		}
 	}
 
@@ -548,9 +548,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 	 * If TF is set due to a debugger (TIF_FORCED_TF), clear the TF
 	 * flag so that register information in the sigcontext is correct.
 	 */
-	if (unlikely(regs->eflags & X86_EFLAGS_TF) &&
+	if (unlikely(regs->flags & X86_EFLAGS_TF) &&
 	    likely(test_and_clear_thread_flag(TIF_FORCED_TF)))
-		regs->eflags &= ~X86_EFLAGS_TF;
+		regs->flags &= ~X86_EFLAGS_TF;
 
 	/* Set up the stack frame */
 	if (ka->sa.sa_flags & SA_SIGINFO)
@@ -622,19 +622,19 @@ static void fastcall do_signal(struct pt_regs *regs)
 	}
 
 	/* Did we come from a system call? */
-	if (regs->orig_eax >= 0) {
+	if (regs->orig_ax >= 0) {
 		/* Restart the system call - no handlers present */
-		switch (regs->eax) {
+		switch (regs->ax) {
 		case -ERESTARTNOHAND:
 		case -ERESTARTSYS:
 		case -ERESTARTNOINTR:
-			regs->eax = regs->orig_eax;
-			regs->eip -= 2;
+			regs->ax = regs->orig_ax;
+			regs->ip -= 2;
 			break;
 
 		case -ERESTART_RESTARTBLOCK:
-			regs->eax = __NR_restart_syscall;
-			regs->eip -= 2;
+			regs->ax = __NR_restart_syscall;
+			regs->ip -= 2;
 			break;
 		}
 	}
@@ -657,7 +657,7 @@ void do_notify_resume(struct pt_regs *regs, void *_unused,
 {
 	/* Pending single-step? */
 	if (thread_info_flags & _TIF_SINGLESTEP) {
-		regs->eflags |= TF_MASK;
+		regs->flags |= TF_MASK;
 		clear_thread_flag(TIF_SINGLESTEP);
 	}
 
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index ab0178ebe00a..4b228fd83b31 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -39,7 +39,7 @@ asmlinkage long
 sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
 		struct pt_regs *regs)
 {
-	return do_sigaltstack(uss, uoss, regs->rsp);
+	return do_sigaltstack(uss, uoss, regs->sp);
 }
 
 
@@ -62,10 +62,11 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, unsigned
 	/* Always make any pending restarted system calls return -EINTR */
 	current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
+#define COPYR(x)	err |= __get_user(regs->x, &sc->r ## x)
 #define COPY(x)		err |= __get_user(regs->x, &sc->x)
 
-	COPY(rdi); COPY(rsi); COPY(rbp); COPY(rsp); COPY(rbx);
-	COPY(rdx); COPY(rcx); COPY(rip);
+	COPYR(di); COPYR(si); COPYR(bp); COPYR(sp); COPYR(bx);
+	COPYR(dx); COPYR(cx); COPYR(ip);
 	COPY(r8);
 	COPY(r9);
 	COPY(r10);
@@ -87,8 +88,8 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, unsigned
 	{
 		unsigned int tmpflags;
 		err |= __get_user(tmpflags, &sc->eflags);
-		regs->eflags = (regs->eflags & ~0x40DD5) | (tmpflags & 0x40DD5);
-		regs->orig_rax = -1;		/* disable syscall checks */
+		regs->flags = (regs->flags & ~0x40DD5) | (tmpflags & 0x40DD5);
+		regs->orig_ax = -1;		/* disable syscall checks */
 	}
 
 	{
@@ -119,9 +120,9 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
 {
 	struct rt_sigframe __user *frame;
 	sigset_t set;
-	unsigned long eax;
+	unsigned long ax;
 
-	frame = (struct rt_sigframe __user *)(regs->rsp - 8);
+	frame = (struct rt_sigframe __user *)(regs->sp - 8);
 	if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) {
 		goto badframe;
 	} 
@@ -135,17 +136,17 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 	
-	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &eax))
+	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
 		goto badframe;
 
 #ifdef DEBUG_SIG
-	printk("%d sigreturn rip:%lx rsp:%lx frame:%p rax:%lx\n",current->pid,regs->rip,regs->rsp,frame,eax);
+	printk("%d sigreturn ip:%lx sp:%lx frame:%p ax:%lx\n",current->pid,regs->ip,regs->sp,frame,ax);
 #endif
 
-	if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->rsp) == -EFAULT)
+	if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT)
 		goto badframe;
 
-	return eax;
+	return ax;
 
 badframe:
 	signal_fault(regs,frame,"sigreturn");
@@ -165,14 +166,14 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned lo
 	err |= __put_user(0, &sc->gs);
 	err |= __put_user(0, &sc->fs);
 
-	err |= __put_user(regs->rdi, &sc->rdi);
-	err |= __put_user(regs->rsi, &sc->rsi);
-	err |= __put_user(regs->rbp, &sc->rbp);
-	err |= __put_user(regs->rsp, &sc->rsp);
-	err |= __put_user(regs->rbx, &sc->rbx);
-	err |= __put_user(regs->rdx, &sc->rdx);
-	err |= __put_user(regs->rcx, &sc->rcx);
-	err |= __put_user(regs->rax, &sc->rax);
+	err |= __put_user(regs->di, &sc->rdi);
+	err |= __put_user(regs->si, &sc->rsi);
+	err |= __put_user(regs->bp, &sc->rbp);
+	err |= __put_user(regs->sp, &sc->rsp);
+	err |= __put_user(regs->bx, &sc->rbx);
+	err |= __put_user(regs->dx, &sc->rdx);
+	err |= __put_user(regs->cx, &sc->rcx);
+	err |= __put_user(regs->ax, &sc->rax);
 	err |= __put_user(regs->r8, &sc->r8);
 	err |= __put_user(regs->r9, &sc->r9);
 	err |= __put_user(regs->r10, &sc->r10);
@@ -183,8 +184,8 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned lo
 	err |= __put_user(regs->r15, &sc->r15);
 	err |= __put_user(me->thread.trap_no, &sc->trapno);
 	err |= __put_user(me->thread.error_code, &sc->err);
-	err |= __put_user(regs->rip, &sc->rip);
-	err |= __put_user(regs->eflags, &sc->eflags);
+	err |= __put_user(regs->ip, &sc->rip);
+	err |= __put_user(regs->flags, &sc->eflags);
 	err |= __put_user(mask, &sc->oldmask);
 	err |= __put_user(me->thread.cr2, &sc->cr2);
 
@@ -198,18 +199,18 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned lo
 static void __user *
 get_stack(struct k_sigaction *ka, struct pt_regs *regs, unsigned long size)
 {
-	unsigned long rsp;
+	unsigned long sp;
 
 	/* Default to using normal stack - redzone*/
-	rsp = regs->rsp - 128;
+	sp = regs->sp - 128;
 
 	/* This is the X/Open sanctioned signal stack switching.  */
 	if (ka->sa.sa_flags & SA_ONSTACK) {
-		if (sas_ss_flags(rsp) == 0)
-			rsp = current->sas_ss_sp + current->sas_ss_size;
+		if (sas_ss_flags(sp) == 0)
+			sp = current->sas_ss_sp + current->sas_ss_size;
 	}
 
-	return (void __user *)round_down(rsp - size, 16); 
+	return (void __user *)round_down(sp - size, 16);
 }
 
 static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
@@ -246,7 +247,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	err |= __put_user(0, &frame->uc.uc_flags);
 	err |= __put_user(0, &frame->uc.uc_link);
 	err |= __put_user(me->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
-	err |= __put_user(sas_ss_flags(regs->rsp),
+	err |= __put_user(sas_ss_flags(regs->sp),
 			  &frame->uc.uc_stack.ss_flags);
 	err |= __put_user(me->sas_ss_size, &frame->uc.uc_stack.ss_size);
 	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0], me);
@@ -271,21 +272,21 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 		goto give_sigsegv;
 
 #ifdef DEBUG_SIG
-	printk("%d old rip %lx old rsp %lx old rax %lx\n", current->pid,regs->rip,regs->rsp,regs->rax);
+	printk("%d old ip %lx old sp %lx old ax %lx\n", current->pid,regs->ip,regs->sp,regs->ax);
 #endif
 
 	/* Set up registers for signal handler */
-	regs->rdi = sig;
+	regs->di = sig;
 	/* In case the signal handler was declared without prototypes */ 
-	regs->rax = 0;	
+	regs->ax = 0;
 
 	/* This also works for non SA_SIGINFO handlers because they expect the
 	   next argument after the signal number on the stack. */
-	regs->rsi = (unsigned long)&frame->info; 
-	regs->rdx = (unsigned long)&frame->uc; 
-	regs->rip = (unsigned long) ka->sa.sa_handler;
+	regs->si = (unsigned long)&frame->info;
+	regs->dx = (unsigned long)&frame->uc;
+	regs->ip = (unsigned long) ka->sa.sa_handler;
 
-	regs->rsp = (unsigned long)frame;
+	regs->sp = (unsigned long)frame;
 
 	/* Set up the CS register to run signal handlers in 64-bit mode,
 	   even if the handler happens to be interrupting 32-bit code. */
@@ -295,12 +296,12 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	   see include/asm-x86_64/uaccess.h for details. */
 	set_fs(USER_DS);
 
-	regs->eflags &= ~TF_MASK;
+	regs->flags &= ~TF_MASK;
 	if (test_thread_flag(TIF_SINGLESTEP))
 		ptrace_notify(SIGTRAP);
 #ifdef DEBUG_SIG
 	printk("SIG deliver (%s:%d): sp=%p pc=%lx ra=%p\n",
-		current->comm, current->pid, frame, regs->rip, frame->pretcode);
+		current->comm, current->pid, frame, regs->ip, frame->pretcode);
 #endif
 
 	return 0;
@@ -321,29 +322,29 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 	int ret;
 
 #ifdef DEBUG_SIG
-	printk("handle_signal pid:%d sig:%lu rip:%lx rsp:%lx regs=%p\n",
+	printk("handle_signal pid:%d sig:%lu ip:%lx sp:%lx regs=%p\n",
 		current->pid, sig,
-		regs->rip, regs->rsp, regs);
+		regs->ip, regs->sp, regs);
 #endif
 
 	/* Are we from a system call? */
-	if ((long)regs->orig_rax >= 0) {
+	if ((long)regs->orig_ax >= 0) {
 		/* If so, check system call restarting.. */
-		switch (regs->rax) {
+		switch (regs->ax) {
 		        case -ERESTART_RESTARTBLOCK:
 			case -ERESTARTNOHAND:
-				regs->rax = -EINTR;
+				regs->ax = -EINTR;
 				break;
 
 			case -ERESTARTSYS:
 				if (!(ka->sa.sa_flags & SA_RESTART)) {
-					regs->rax = -EINTR;
+					regs->ax = -EINTR;
 					break;
 				}
 				/* fallthrough */
 			case -ERESTARTNOINTR:
-				regs->rax = regs->orig_rax;
-				regs->rip -= 2;
+				regs->ax = regs->orig_ax;
+				regs->ip -= 2;
 				break;
 		}
 	}
@@ -352,9 +353,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 	 * If TF is set due to a debugger (TIF_FORCED_TF), clear the TF
 	 * flag so that register information in the sigcontext is correct.
 	 */
-	if (unlikely(regs->eflags & X86_EFLAGS_TF) &&
+	if (unlikely(regs->flags & X86_EFLAGS_TF) &&
 	    likely(test_and_clear_thread_flag(TIF_FORCED_TF)))
-		regs->eflags &= ~X86_EFLAGS_TF;
+		regs->flags &= ~X86_EFLAGS_TF;
 
 #ifdef CONFIG_IA32_EMULATION
 	if (test_thread_flag(TIF_IA32)) {
@@ -426,21 +427,21 @@ static void do_signal(struct pt_regs *regs)
 	}
 
 	/* Did we come from a system call? */
-	if ((long)regs->orig_rax >= 0) {
+	if ((long)regs->orig_ax >= 0) {
 		/* Restart the system call - no handlers present */
-		long res = regs->rax;
+		long res = regs->ax;
 		switch (res) {
 		case -ERESTARTNOHAND:
 		case -ERESTARTSYS:
 		case -ERESTARTNOINTR:
-			regs->rax = regs->orig_rax;
-			regs->rip -= 2;
+			regs->ax = regs->orig_ax;
+			regs->ip -= 2;
 			break;
 		case -ERESTART_RESTARTBLOCK:
-			regs->rax = test_thread_flag(TIF_IA32) ?
+			regs->ax = test_thread_flag(TIF_IA32) ?
 					__NR_ia32_restart_syscall :
 					__NR_restart_syscall;
-			regs->rip -= 2;
+			regs->ip -= 2;
 			break;
 		}
 	}
@@ -457,13 +458,13 @@ void
 do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
 {
 #ifdef DEBUG_SIG
-	printk("do_notify_resume flags:%x rip:%lx rsp:%lx caller:%p pending:%x\n",
-	       thread_info_flags, regs->rip, regs->rsp, __builtin_return_address(0),signal_pending(current)); 
+	printk("do_notify_resume flags:%x ip:%lx sp:%lx caller:%p pending:%x\n",
+	       thread_info_flags, regs->ip, regs->sp, __builtin_return_address(0),signal_pending(current));
 #endif
 	       
 	/* Pending single-step? */
 	if (thread_info_flags & _TIF_SINGLESTEP) {
-		regs->eflags |= TF_MASK;
+		regs->flags |= TF_MASK;
 		clear_thread_flag(TIF_SINGLESTEP);
 	}
 
@@ -485,8 +486,8 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where)
 { 
 	struct task_struct *me = current; 
 	if (show_unhandled_signals && printk_ratelimit())
-		printk("%s[%d] bad frame in %s frame:%p rip:%lx rsp:%lx orax:%lx\n",
-	       me->comm,me->pid,where,frame,regs->rip,regs->rsp,regs->orig_rax); 
+		printk("%s[%d] bad frame in %s frame:%p ip:%lx sp:%lx orax:%lx\n",
+	       me->comm,me->pid,where,frame,regs->ip,regs->sp,regs->orig_ax);
 
 	force_sig(SIGSEGV, me); 
 } 
diff --git a/arch/x86/kernel/smp_64.c b/arch/x86/kernel/smp_64.c
index 7142447b5666..02a6533e8909 100644
--- a/arch/x86/kernel/smp_64.c
+++ b/arch/x86/kernel/smp_64.c
@@ -136,7 +136,7 @@ asmlinkage void smp_invalidate_interrupt(struct pt_regs *regs)
 	 * orig_rax contains the negated interrupt vector.
 	 * Use that to determine where the sender put the data.
 	 */
-	sender = ~regs->orig_rax - INVALIDATE_TLB_VECTOR_START;
+	sender = ~regs->orig_ax - INVALIDATE_TLB_VECTOR_START;
 	f = &per_cpu(flush_state, sender);
 
 	if (!cpu_isset(cpu, f->flush_cpumask))
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 0bf7f20baba0..3566191832b3 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -447,7 +447,7 @@ void __devinit initialize_secondary(void)
 {
 	/*
 	 * We don't actually need to load the full TSS,
-	 * basically just the stack pointer and the eip.
+	 * basically just the stack pointer and the ip.
 	 */
 
 	asm volatile(
@@ -459,7 +459,7 @@ void __devinit initialize_secondary(void)
 
 /* Static state in head.S used to set up a CPU */
 extern struct {
-	void * esp;
+	void * sp;
 	unsigned short ss;
 } stack_start;
 
@@ -667,7 +667,7 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip)
 	 * target processor state.
 	 */
 	startup_ipi_hook(phys_apicid, (unsigned long) start_secondary,
-		         (unsigned long) stack_start.esp);
+		         (unsigned long) stack_start.sp);
 
 	/*
 	 * Run STARTUP IPI loop.
@@ -806,9 +806,9 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu)
 	alternatives_smp_switch(1);
 
 	/* So we see what's up   */
-	printk("Booting processor %d/%d eip %lx\n", cpu, apicid, start_eip);
+	printk("Booting processor %d/%d ip %lx\n", cpu, apicid, start_eip);
 	/* Stack for startup_32 can be just as for start_secondary onwards */
-	stack_start.esp = (void *) idle->thread.esp;
+	stack_start.sp = (void *) idle->thread.esp;
 
 	irq_ctx_init(cpu);
 
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index cf4b9dac4a05..f55c003f5b63 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -12,17 +12,12 @@ unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *r
 {
 	unsigned long addr, seg;
 
-#ifdef CONFIG_X86_64
-	addr = regs->rip;
+	addr = regs->ip;
 	seg = regs->cs & 0xffff;
-#else
-	addr = regs->eip;
-	seg = regs->xcs & 0xffff;
-	if (regs->eflags & X86_EFLAGS_VM) {
+	if (v8086_mode(regs)) {
 		addr = (addr & 0xffff) + (seg << 4);
 		return addr;
 	}
-#endif
 
 	/*
 	 * We'll assume that the code segments in the GDT
@@ -124,11 +119,11 @@ static int enable_single_step(struct task_struct *child)
 	/*
 	 * If TF was already set, don't do anything else
 	 */
-	if (regs->eflags & X86_EFLAGS_TF)
+	if (regs->flags & X86_EFLAGS_TF)
 		return 0;
 
 	/* Set TF on the kernel stack.. */
-	regs->eflags |= X86_EFLAGS_TF;
+	regs->flags |= X86_EFLAGS_TF;
 
 	/*
 	 * ..but if TF is changed by the instruction we will trace,
@@ -203,5 +198,5 @@ void user_disable_single_step(struct task_struct *child)
 
 	/* But touch TF only if it was set by us.. */
 	if (test_and_clear_tsk_thread_flag(child, TIF_FORCED_TF))
-		task_pt_regs(child)->eflags &= ~X86_EFLAGS_TF;
+		task_pt_regs(child)->flags &= ~X86_EFLAGS_TF;
 }
diff --git a/arch/x86/kernel/suspend_asm_64.S b/arch/x86/kernel/suspend_asm_64.S
index 72f952103e50..aeb9a4d7681e 100644
--- a/arch/x86/kernel/suspend_asm_64.S
+++ b/arch/x86/kernel/suspend_asm_64.S
@@ -18,13 +18,13 @@
 
 ENTRY(swsusp_arch_suspend)
 	movq	$saved_context, %rax
-	movq	%rsp, pt_regs_rsp(%rax)
-	movq	%rbp, pt_regs_rbp(%rax)
-	movq	%rsi, pt_regs_rsi(%rax)
-	movq	%rdi, pt_regs_rdi(%rax)
-	movq	%rbx, pt_regs_rbx(%rax)
-	movq	%rcx, pt_regs_rcx(%rax)
-	movq	%rdx, pt_regs_rdx(%rax)
+	movq	%rsp, pt_regs_sp(%rax)
+	movq	%rbp, pt_regs_bp(%rax)
+	movq	%rsi, pt_regs_si(%rax)
+	movq	%rdi, pt_regs_di(%rax)
+	movq	%rbx, pt_regs_bx(%rax)
+	movq	%rcx, pt_regs_cx(%rax)
+	movq	%rdx, pt_regs_dx(%rax)
 	movq	%r8, pt_regs_r8(%rax)
 	movq	%r9, pt_regs_r9(%rax)
 	movq	%r10, pt_regs_r10(%rax)
@@ -34,7 +34,7 @@ ENTRY(swsusp_arch_suspend)
 	movq	%r14, pt_regs_r14(%rax)
 	movq	%r15, pt_regs_r15(%rax)
 	pushfq
-	popq	pt_regs_eflags(%rax)
+	popq	pt_regs_flags(%rax)
 
 	/* save the address of restore_registers */
 	movq	$restore_registers, %rax
@@ -115,13 +115,13 @@ ENTRY(restore_registers)
 
 	/* We don't restore %rax, it must be 0 anyway */
 	movq	$saved_context, %rax
-	movq	pt_regs_rsp(%rax), %rsp
-	movq	pt_regs_rbp(%rax), %rbp
-	movq	pt_regs_rsi(%rax), %rsi
-	movq	pt_regs_rdi(%rax), %rdi
-	movq	pt_regs_rbx(%rax), %rbx
-	movq	pt_regs_rcx(%rax), %rcx
-	movq	pt_regs_rdx(%rax), %rdx
+	movq	pt_regs_sp(%rax), %rsp
+	movq	pt_regs_bp(%rax), %rbp
+	movq	pt_regs_si(%rax), %rsi
+	movq	pt_regs_di(%rax), %rdi
+	movq	pt_regs_bx(%rax), %rbx
+	movq	pt_regs_cx(%rax), %rcx
+	movq	pt_regs_dx(%rax), %rdx
 	movq	pt_regs_r8(%rax), %r8
 	movq	pt_regs_r9(%rax), %r9
 	movq	pt_regs_r10(%rax), %r10
@@ -130,7 +130,7 @@ ENTRY(restore_registers)
 	movq	pt_regs_r13(%rax), %r13
 	movq	pt_regs_r14(%rax), %r14
 	movq	pt_regs_r15(%rax), %r15
-	pushq	pt_regs_eflags(%rax)
+	pushq	pt_regs_flags(%rax)
 	popfq
 
 	xorq	%rax, %rax
diff --git a/arch/x86/kernel/time_32.c b/arch/x86/kernel/time_32.c
index 2dcbb81b4cd3..1a89e93f3f1c 100644
--- a/arch/x86/kernel/time_32.c
+++ b/arch/x86/kernel/time_32.c
@@ -49,15 +49,15 @@ unsigned long profile_pc(struct pt_regs *regs)
 	unsigned long pc = instruction_pointer(regs);
 
 #ifdef CONFIG_SMP
-	if (!v8086_mode(regs) && SEGMENT_IS_KERNEL_CODE(regs->xcs) &&
+	if (!v8086_mode(regs) && SEGMENT_IS_KERNEL_CODE(regs->cs) &&
 	    in_lock_functions(pc)) {
 #ifdef CONFIG_FRAME_POINTER
-		return *(unsigned long *)(regs->ebp + 4);
+		return *(unsigned long *)(regs->bp + 4);
 #else
-		unsigned long *sp = (unsigned long *)&regs->esp;
+		unsigned long *sp = (unsigned long *)&regs->sp;
 
 		/* Return address is either directly at stack pointer
-		   or above a saved eflags. Eflags has bits 22-31 zero,
+		   or above a saved flags. Eflags has bits 22-31 zero,
 		   kernel addresses don't. */
 		if (sp[0] >> 22)
 			return sp[0];
diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index f88bf6b802e3..bf0bcc9bb001 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -29,10 +29,10 @@ unsigned long profile_pc(struct pt_regs *regs)
 	unsigned long pc = instruction_pointer(regs);
 
 	/* Assume the lock function has either no stack frame or a copy
-	   of eflags from PUSHF
+	   of flags from PUSHF
 	   Eflags always has bits 22 and up cleared unlike kernel addresses. */
 	if (!user_mode(regs) && in_lock_functions(pc)) {
-		unsigned long *sp = (unsigned long *)regs->rsp;
+		unsigned long *sp = (unsigned long *)regs->sp;
 		if (sp[0] >> 22)
 			return sp[0];
 		if (sp[1] >> 22)
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 9b0bbd508cd5..931ef10960ee 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -114,11 +114,11 @@ struct stack_frame {
 };
 
 static inline unsigned long print_context_stack(struct thread_info *tinfo,
-				unsigned long *stack, unsigned long ebp,
+				unsigned long *stack, unsigned long bp,
 				const struct stacktrace_ops *ops, void *data)
 {
 #ifdef	CONFIG_FRAME_POINTER
-	struct stack_frame *frame = (struct stack_frame *)ebp;
+	struct stack_frame *frame = (struct stack_frame *)bp;
 	while (valid_stack_ptr(tinfo, frame, sizeof(*frame))) {
 		struct stack_frame *next;
 		unsigned long addr;
@@ -145,7 +145,7 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
 			ops->address(data, addr);
 	}
 #endif
-	return ebp;
+	return bp;
 }
 
 #define MSG(msg) ops->warning(data, msg)
@@ -154,7 +154,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 	        unsigned long *stack,
 		const struct stacktrace_ops *ops, void *data)
 {
-	unsigned long ebp = 0;
+	unsigned long bp = 0;
 
 	if (!task)
 		task = current;
@@ -167,13 +167,13 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 	}
 
 #ifdef CONFIG_FRAME_POINTER
-	if (!ebp) {
+	if (!bp) {
 		if (task == current) {
-			/* Grab ebp right from our regs */
-			asm ("movl %%ebp, %0" : "=r" (ebp) : );
+			/* Grab bp right from our regs */
+			asm ("movl %%ebp, %0" : "=r" (bp) : );
 		} else {
-			/* ebp is the last reg pushed by switch_to */
-			ebp = *(unsigned long *) task->thread.esp;
+			/* bp is the last reg pushed by switch_to */
+			bp = *(unsigned long *) task->thread.esp;
 		}
 	}
 #endif
@@ -182,7 +182,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 		struct thread_info *context;
 		context = (struct thread_info *)
 			((unsigned long)stack & (~(THREAD_SIZE - 1)));
-		ebp = print_context_stack(context, stack, ebp, ops, data);
+		bp = print_context_stack(context, stack, bp, ops, data);
 		/* Should be after the line below, but somewhere
 		   in early boot context comes out corrupted and we
 		   can't reference it -AK */
@@ -246,19 +246,19 @@ void show_trace(struct task_struct *task, struct pt_regs *regs,
 }
 
 static void show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
-			       unsigned long *esp, char *log_lvl)
+			       unsigned long *sp, char *log_lvl)
 {
 	unsigned long *stack;
 	int i;
 
-	if (esp == NULL) {
+	if (sp == NULL) {
 		if (task)
-			esp = (unsigned long*)task->thread.esp;
+			sp = (unsigned long*)task->thread.esp;
 		else
-			esp = (unsigned long *)&esp;
+			sp = (unsigned long *)&sp;
 	}
 
-	stack = esp;
+	stack = sp;
 	for(i = 0; i < kstack_depth_to_print; i++) {
 		if (kstack_end(stack))
 			break;
@@ -267,13 +267,13 @@ static void show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
 		printk("%08lx ", *stack++);
 	}
 	printk("\n%sCall Trace:\n", log_lvl);
-	show_trace_log_lvl(task, regs, esp, log_lvl);
+	show_trace_log_lvl(task, regs, sp, log_lvl);
 }
 
-void show_stack(struct task_struct *task, unsigned long *esp)
+void show_stack(struct task_struct *task, unsigned long *sp)
 {
 	printk("       ");
-	show_stack_log_lvl(task, NULL, esp, "");
+	show_stack_log_lvl(task, NULL, sp, "");
 }
 
 /*
@@ -307,30 +307,30 @@ void show_registers(struct pt_regs *regs)
 	 * time of the fault..
 	 */
 	if (!user_mode_vm(regs)) {
-		u8 *eip;
+		u8 *ip;
 		unsigned int code_prologue = code_bytes * 43 / 64;
 		unsigned int code_len = code_bytes;
 		unsigned char c;
 
 		printk("\n" KERN_EMERG "Stack: ");
-		show_stack_log_lvl(NULL, regs, &regs->esp, KERN_EMERG);
+		show_stack_log_lvl(NULL, regs, &regs->sp, KERN_EMERG);
 
 		printk(KERN_EMERG "Code: ");
 
-		eip = (u8 *)regs->eip - code_prologue;
-		if (eip < (u8 *)PAGE_OFFSET ||
-			probe_kernel_address(eip, c)) {
+		ip = (u8 *)regs->ip - code_prologue;
+		if (ip < (u8 *)PAGE_OFFSET ||
+			probe_kernel_address(ip, c)) {
 			/* try starting at EIP */
-			eip = (u8 *)regs->eip;
+			ip = (u8 *)regs->ip;
 			code_len = code_len - code_prologue + 1;
 		}
-		for (i = 0; i < code_len; i++, eip++) {
-			if (eip < (u8 *)PAGE_OFFSET ||
-				probe_kernel_address(eip, c)) {
+		for (i = 0; i < code_len; i++, ip++) {
+			if (ip < (u8 *)PAGE_OFFSET ||
+				probe_kernel_address(ip, c)) {
 				printk(" Bad EIP value.");
 				break;
 			}
-			if (eip == (u8 *)regs->eip)
+			if (ip == (u8 *)regs->ip)
 				printk("<%02x> ", c);
 			else
 				printk("%02x ", c);
@@ -339,13 +339,13 @@ void show_registers(struct pt_regs *regs)
 	printk("\n");
 }	
 
-int is_valid_bugaddr(unsigned long eip)
+int is_valid_bugaddr(unsigned long ip)
 {
 	unsigned short ud2;
 
-	if (eip < PAGE_OFFSET)
+	if (ip < PAGE_OFFSET)
 		return 0;
-	if (probe_kernel_address((unsigned short *)eip, ud2))
+	if (probe_kernel_address((unsigned short *)ip, ud2))
 		return 0;
 
 	return ud2 == 0x0b0f;
@@ -382,10 +382,10 @@ void die(const char * str, struct pt_regs * regs, long err)
 		raw_local_irq_save(flags);
 
 	if (++die.lock_owner_depth < 3) {
-		unsigned long esp;
+		unsigned long sp;
 		unsigned short ss;
 
-		report_bug(regs->eip, regs);
+		report_bug(regs->ip, regs);
 
 		printk(KERN_EMERG "%s: %04lx [#%d] ", str, err & 0xffff,
 		       ++die_counter);
@@ -405,15 +405,15 @@ void die(const char * str, struct pt_regs * regs, long err)
 				NOTIFY_STOP) {
 			show_registers(regs);
 			/* Executive summary in case the oops scrolled away */
-			esp = (unsigned long) (&regs->esp);
+			sp = (unsigned long) (&regs->sp);
 			savesegment(ss, ss);
 			if (user_mode(regs)) {
-				esp = regs->esp;
-				ss = regs->xss & 0xffff;
+				sp = regs->sp;
+				ss = regs->ss & 0xffff;
 			}
-			printk(KERN_EMERG "EIP: [<%08lx>] ", regs->eip);
-			print_symbol("%s", regs->eip);
-			printk(" SS:ESP %04x:%08lx\n", ss, esp);
+			printk(KERN_EMERG "EIP: [<%08lx>] ", regs->ip);
+			print_symbol("%s", regs->ip);
+			printk(" SS:ESP %04x:%08lx\n", ss, sp);
 		}
 		else
 			regs = NULL;
@@ -454,7 +454,7 @@ static void __kprobes do_trap(int trapnr, int signr, char *str, int vm86,
 {
 	struct task_struct *tsk = current;
 
-	if (regs->eflags & VM_MASK) {
+	if (regs->flags & VM_MASK) {
 		if (vm86)
 			goto vm86_trap;
 		goto trap_signal;
@@ -548,13 +548,13 @@ fastcall void do_##name(struct pt_regs * regs, long error_code) \
 	do_trap(trapnr, signr, str, 1, regs, error_code, &info); \
 }
 
-DO_VM86_ERROR_INFO( 0, SIGFPE,  "divide error", divide_error, FPE_INTDIV, regs->eip)
+DO_VM86_ERROR_INFO( 0, SIGFPE,  "divide error", divide_error, FPE_INTDIV, regs->ip)
 #ifndef CONFIG_KPROBES
 DO_VM86_ERROR( 3, SIGTRAP, "int3", int3)
 #endif
 DO_VM86_ERROR( 4, SIGSEGV, "overflow", overflow)
 DO_VM86_ERROR( 5, SIGSEGV, "bounds", bounds)
-DO_ERROR_INFO( 6, SIGILL,  "invalid opcode", invalid_op, ILL_ILLOPN, regs->eip, 0)
+DO_ERROR_INFO( 6, SIGILL,  "invalid opcode", invalid_op, ILL_ILLOPN, regs->ip, 0)
 DO_ERROR( 9, SIGFPE,  "coprocessor segment overrun", coprocessor_segment_overrun)
 DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS)
 DO_ERROR(11, SIGBUS,  "segment not present", segment_not_present)
@@ -596,7 +596,7 @@ fastcall void __kprobes do_general_protection(struct pt_regs * regs,
 	}
 	put_cpu();
 
-	if (regs->eflags & VM_MASK)
+	if (regs->flags & VM_MASK)
 		goto gp_in_vm86;
 
 	if (!user_mode(regs))
@@ -607,9 +607,9 @@ fastcall void __kprobes do_general_protection(struct pt_regs * regs,
 	if (show_unhandled_signals && unhandled_signal(current, SIGSEGV) &&
 	    printk_ratelimit())
 		printk(KERN_INFO
-		    "%s[%d] general protection eip:%lx esp:%lx error:%lx\n",
+		    "%s[%d] general protection ip:%lx sp:%lx error:%lx\n",
 		    current->comm, task_pid_nr(current),
-		    regs->eip, regs->esp, error_code);
+		    regs->ip, regs->sp, error_code);
 
 	force_sig(SIGSEGV, current);
 	return;
@@ -705,8 +705,8 @@ void __kprobes die_nmi(struct pt_regs *regs, const char *msg)
 	*/
 	bust_spinlocks(1);
 	printk(KERN_EMERG "%s", msg);
-	printk(" on CPU%d, eip %08lx, registers:\n",
-		smp_processor_id(), regs->eip);
+	printk(" on CPU%d, ip %08lx, registers:\n",
+		smp_processor_id(), regs->ip);
 	show_registers(regs);
 	console_silent();
 	spin_unlock(&nmi_print_lock);
@@ -847,7 +847,7 @@ fastcall void __kprobes do_debug(struct pt_regs * regs, long error_code)
 					SIGTRAP) == NOTIFY_STOP)
 		return;
 	/* It's safe to allow irq's after DR6 has been saved */
-	if (regs->eflags & X86_EFLAGS_IF)
+	if (regs->flags & X86_EFLAGS_IF)
 		local_irq_enable();
 
 	/* Mask out spurious debug traps due to lazy DR7 setting */
@@ -856,7 +856,7 @@ fastcall void __kprobes do_debug(struct pt_regs * regs, long error_code)
 			goto clear_dr7;
 	}
 
-	if (regs->eflags & VM_MASK)
+	if (regs->flags & VM_MASK)
 		goto debug_vm86;
 
 	/* Save debug status register where ptrace can see it */
@@ -892,7 +892,7 @@ debug_vm86:
 
 clear_TF_reenable:
 	set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
-	regs->eflags &= ~TF_MASK;
+	regs->flags &= ~TF_MASK;
 	return;
 }
 
@@ -901,7 +901,7 @@ clear_TF_reenable:
  * the correct behaviour even in the presence of the asynchronous
  * IRQ13 behaviour
  */
-void math_error(void __user *eip)
+void math_error(void __user *ip)
 {
 	struct task_struct * task;
 	siginfo_t info;
@@ -917,7 +917,7 @@ void math_error(void __user *eip)
 	info.si_signo = SIGFPE;
 	info.si_errno = 0;
 	info.si_code = __SI_FAULT;
-	info.si_addr = eip;
+	info.si_addr = ip;
 	/*
 	 * (~cwd & swd) will mask out exceptions that are not set to unmasked
 	 * status.  0x3f is the exception bits in these regs, 0x200 is the
@@ -963,10 +963,10 @@ void math_error(void __user *eip)
 fastcall void do_coprocessor_error(struct pt_regs * regs, long error_code)
 {
 	ignore_fpu_irq = 1;
-	math_error((void __user *)regs->eip);
+	math_error((void __user *)regs->ip);
 }
 
-static void simd_math_error(void __user *eip)
+static void simd_math_error(void __user *ip)
 {
 	struct task_struct * task;
 	siginfo_t info;
@@ -982,7 +982,7 @@ static void simd_math_error(void __user *eip)
 	info.si_signo = SIGFPE;
 	info.si_errno = 0;
 	info.si_code = __SI_FAULT;
-	info.si_addr = eip;
+	info.si_addr = ip;
 	/*
 	 * The SIMD FPU exceptions are handled a little differently, as there
 	 * is only a single status/control register.  Thus, to determine which
@@ -1020,13 +1020,13 @@ fastcall void do_simd_coprocessor_error(struct pt_regs * regs,
 	if (cpu_has_xmm) {
 		/* Handle SIMD FPU exceptions on PIII+ processors. */
 		ignore_fpu_irq = 1;
-		simd_math_error((void __user *)regs->eip);
+		simd_math_error((void __user *)regs->ip);
 	} else {
 		/*
 		 * Handle strange cache flush from user space exception
 		 * in all other cases.  This is undocumented behaviour.
 		 */
-		if (regs->eflags & VM_MASK) {
+		if (regs->flags & VM_MASK) {
 			handle_vm86_fault((struct kernel_vm86_regs *)regs,
 					  error_code);
 			return;
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 610a64d6bdf0..f7fecf9d47c3 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -76,20 +76,20 @@ asmlinkage void spurious_interrupt_bug(void);
 
 static inline void conditional_sti(struct pt_regs *regs)
 {
-	if (regs->eflags & X86_EFLAGS_IF)
+	if (regs->flags & X86_EFLAGS_IF)
 		local_irq_enable();
 }
 
 static inline void preempt_conditional_sti(struct pt_regs *regs)
 {
 	preempt_disable();
-	if (regs->eflags & X86_EFLAGS_IF)
+	if (regs->flags & X86_EFLAGS_IF)
 		local_irq_enable();
 }
 
 static inline void preempt_conditional_cli(struct pt_regs *regs)
 {
-	if (regs->eflags & X86_EFLAGS_IF)
+	if (regs->flags & X86_EFLAGS_IF)
 		local_irq_disable();
 	/* Make sure to not schedule here because we could be running
 	   on an exception stack. */
@@ -353,7 +353,7 @@ show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long *stack)
 }
 
 static void
-_show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *rsp)
+_show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *sp)
 {
 	unsigned long *stack;
 	int i;
@@ -364,14 +364,14 @@ _show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *rsp)
 	// debugging aid: "show_stack(NULL, NULL);" prints the
 	// back trace for this cpu.
 
-	if (rsp == NULL) {
+	if (sp == NULL) {
 		if (tsk)
-			rsp = (unsigned long *)tsk->thread.rsp;
+			sp = (unsigned long *)tsk->thread.rsp;
 		else
-			rsp = (unsigned long *)&rsp;
+			sp = (unsigned long *)&sp;
 	}
 
-	stack = rsp;
+	stack = sp;
 	for(i=0; i < kstack_depth_to_print; i++) {
 		if (stack >= irqstack && stack <= irqstack_end) {
 			if (stack == irqstack_end) {
@@ -387,12 +387,12 @@ _show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *rsp)
 		printk(" %016lx", *stack++);
 		touch_nmi_watchdog();
 	}
-	show_trace(tsk, regs, rsp);
+	show_trace(tsk, regs, sp);
 }
 
-void show_stack(struct task_struct *tsk, unsigned long * rsp)
+void show_stack(struct task_struct *tsk, unsigned long * sp)
 {
-	_show_stack(tsk, NULL, rsp);
+	_show_stack(tsk, NULL, sp);
 }
 
 /*
@@ -416,11 +416,11 @@ void show_registers(struct pt_regs *regs)
 {
 	int i;
 	int in_kernel = !user_mode(regs);
-	unsigned long rsp;
+	unsigned long sp;
 	const int cpu = smp_processor_id();
 	struct task_struct *cur = cpu_pda(cpu)->pcurrent;
 
-	rsp = regs->rsp;
+	sp = regs->sp;
 	printk("CPU %d ", cpu);
 	__show_regs(regs);
 	printk("Process %s (pid: %d, threadinfo %p, task %p)\n",
@@ -432,15 +432,15 @@ void show_registers(struct pt_regs *regs)
 	 */
 	if (in_kernel) {
 		printk("Stack: ");
-		_show_stack(NULL, regs, (unsigned long*)rsp);
+		_show_stack(NULL, regs, (unsigned long*)sp);
 
 		printk("\nCode: ");
-		if (regs->rip < PAGE_OFFSET)
+		if (regs->ip < PAGE_OFFSET)
 			goto bad;
 
 		for (i=0; i<20; i++) {
 			unsigned char c;
-			if (__get_user(c, &((unsigned char*)regs->rip)[i])) {
+			if (__get_user(c, &((unsigned char*)regs->ip)[i])) {
 bad:
 				printk(" Bad RIP value.");
 				break;
@@ -451,11 +451,11 @@ bad:
 	printk("\n");
 }	
 
-int is_valid_bugaddr(unsigned long rip)
+int is_valid_bugaddr(unsigned long ip)
 {
 	unsigned short ud2;
 
-	if (__copy_from_user(&ud2, (const void __user *) rip, sizeof(ud2)))
+	if (__copy_from_user(&ud2, (const void __user *) ip, sizeof(ud2)))
 		return 0;
 
 	return ud2 == 0x0b0f;
@@ -521,8 +521,8 @@ void __kprobes __die(const char * str, struct pt_regs * regs, long err)
 	add_taint(TAINT_DIE);
 	/* Executive summary in case the oops scrolled away */
 	printk(KERN_ALERT "RIP ");
-	printk_address(regs->rip); 
-	printk(" RSP <%016lx>\n", regs->rsp); 
+	printk_address(regs->ip);
+	printk(" RSP <%016lx>\n", regs->sp);
 	if (kexec_should_crash(current))
 		crash_kexec(regs);
 }
@@ -532,7 +532,7 @@ void die(const char * str, struct pt_regs * regs, long err)
 	unsigned long flags = oops_begin();
 
 	if (!user_mode(regs))
-		report_bug(regs->rip, regs);
+		report_bug(regs->ip, regs);
 
 	__die(str, regs, err);
 	oops_end(flags);
@@ -582,9 +582,9 @@ static void __kprobes do_trap(int trapnr, int signr, char *str,
 		if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
 		    printk_ratelimit())
 			printk(KERN_INFO
-			       "%s[%d] trap %s rip:%lx rsp:%lx error:%lx\n",
+			       "%s[%d] trap %s ip:%lx sp:%lx error:%lx\n",
 			       tsk->comm, tsk->pid, str,
-			       regs->rip, regs->rsp, error_code); 
+			       regs->ip, regs->sp, error_code);
 
 		if (info)
 			force_sig_info(signr, info, tsk);
@@ -597,9 +597,9 @@ static void __kprobes do_trap(int trapnr, int signr, char *str,
 	/* kernel trap */ 
 	{	     
 		const struct exception_table_entry *fixup;
-		fixup = search_exception_tables(regs->rip);
+		fixup = search_exception_tables(regs->ip);
 		if (fixup)
-			regs->rip = fixup->fixup;
+			regs->ip = fixup->fixup;
 		else {
 			tsk->thread.error_code = error_code;
 			tsk->thread.trap_no = trapnr;
@@ -635,10 +635,10 @@ asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
 	do_trap(trapnr, signr, str, regs, error_code, &info); \
 }
 
-DO_ERROR_INFO( 0, SIGFPE,  "divide error", divide_error, FPE_INTDIV, regs->rip)
+DO_ERROR_INFO( 0, SIGFPE,  "divide error", divide_error, FPE_INTDIV, regs->ip)
 DO_ERROR( 4, SIGSEGV, "overflow", overflow)
 DO_ERROR( 5, SIGSEGV, "bounds", bounds)
-DO_ERROR_INFO( 6, SIGILL,  "invalid opcode", invalid_op, ILL_ILLOPN, regs->rip)
+DO_ERROR_INFO( 6, SIGILL,  "invalid opcode", invalid_op, ILL_ILLOPN, regs->ip)
 DO_ERROR( 7, SIGSEGV, "device not available", device_not_available)
 DO_ERROR( 9, SIGFPE,  "coprocessor segment overrun", coprocessor_segment_overrun)
 DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS)
@@ -688,9 +688,9 @@ asmlinkage void __kprobes do_general_protection(struct pt_regs * regs,
 		if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
 		    printk_ratelimit())
 			printk(KERN_INFO
-		       "%s[%d] general protection rip:%lx rsp:%lx error:%lx\n",
+		       "%s[%d] general protection ip:%lx sp:%lx error:%lx\n",
 			       tsk->comm, tsk->pid,
-			       regs->rip, regs->rsp, error_code); 
+			       regs->ip, regs->sp, error_code);
 
 		force_sig(SIGSEGV, tsk);
 		return;
@@ -699,9 +699,9 @@ asmlinkage void __kprobes do_general_protection(struct pt_regs * regs,
 	/* kernel gp */
 	{
 		const struct exception_table_entry *fixup;
-		fixup = search_exception_tables(regs->rip);
+		fixup = search_exception_tables(regs->ip);
 		if (fixup) {
-			regs->rip = fixup->fixup;
+			regs->ip = fixup->fixup;
 			return;
 		}
 
@@ -824,15 +824,15 @@ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs)
 {
 	struct pt_regs *regs = eregs;
 	/* Did already sync */
-	if (eregs == (struct pt_regs *)eregs->rsp)
+	if (eregs == (struct pt_regs *)eregs->sp)
 		;
 	/* Exception from user space */
 	else if (user_mode(eregs))
 		regs = task_pt_regs(current);
 	/* Exception from kernel and interrupts are enabled. Move to
  	   kernel process stack. */
-	else if (eregs->eflags & X86_EFLAGS_IF)
-		regs = (struct pt_regs *)(eregs->rsp -= sizeof(struct pt_regs));
+	else if (eregs->flags & X86_EFLAGS_IF)
+		regs = (struct pt_regs *)(eregs->sp -= sizeof(struct pt_regs));
 	if (eregs != regs)
 		*regs = *eregs;
 	return regs;
@@ -887,7 +887,7 @@ asmlinkage void __kprobes do_debug(struct pt_regs * regs,
 	info.si_signo = SIGTRAP;
 	info.si_errno = 0;
 	info.si_code = TRAP_BRKPT;
-	info.si_addr = user_mode(regs) ? (void __user *)regs->rip : NULL;
+	info.si_addr = user_mode(regs) ? (void __user *)regs->ip : NULL;
 	force_sig_info(SIGTRAP, &info, tsk);
 
 clear_dr7:
@@ -897,16 +897,16 @@ clear_dr7:
 
 clear_TF_reenable:
 	set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
-	regs->eflags &= ~TF_MASK;
+	regs->flags &= ~TF_MASK;
 	preempt_conditional_cli(regs);
 }
 
 static int kernel_math_error(struct pt_regs *regs, const char *str, int trapnr)
 {
 	const struct exception_table_entry *fixup;
-	fixup = search_exception_tables(regs->rip);
+	fixup = search_exception_tables(regs->ip);
 	if (fixup) {
-		regs->rip = fixup->fixup;
+		regs->ip = fixup->fixup;
 		return 1;
 	}
 	notify_die(DIE_GPF, str, regs, 0, trapnr, SIGFPE);
@@ -923,7 +923,7 @@ static int kernel_math_error(struct pt_regs *regs, const char *str, int trapnr)
  */
 asmlinkage void do_coprocessor_error(struct pt_regs *regs)
 {
-	void __user *rip = (void __user *)(regs->rip);
+	void __user *ip = (void __user *)(regs->ip);
 	struct task_struct * task;
 	siginfo_t info;
 	unsigned short cwd, swd;
@@ -943,7 +943,7 @@ asmlinkage void do_coprocessor_error(struct pt_regs *regs)
 	info.si_signo = SIGFPE;
 	info.si_errno = 0;
 	info.si_code = __SI_FAULT;
-	info.si_addr = rip;
+	info.si_addr = ip;
 	/*
 	 * (~cwd & swd) will mask out exceptions that are not set to unmasked
 	 * status.  0x3f is the exception bits in these regs, 0x200 is the
@@ -992,7 +992,7 @@ asmlinkage void bad_intr(void)
 
 asmlinkage void do_simd_coprocessor_error(struct pt_regs *regs)
 {
-	void __user *rip = (void __user *)(regs->rip);
+	void __user *ip = (void __user *)(regs->ip);
 	struct task_struct * task;
 	siginfo_t info;
 	unsigned short mxcsr;
@@ -1012,7 +1012,7 @@ asmlinkage void do_simd_coprocessor_error(struct pt_regs *regs)
 	info.si_signo = SIGFPE;
 	info.si_errno = 0;
 	info.si_code = __SI_FAULT;
-	info.si_addr = rip;
+	info.si_addr = ip;
 	/*
 	 * The SIMD FPU exceptions are handled a little differently, as there
 	 * is only a single status/control register.  Thus, to determine which
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 157e4bedd3c5..980e85b90091 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -70,10 +70,10 @@
 /*
  * 8- and 16-bit register defines..
  */
-#define AL(regs)	(((unsigned char *)&((regs)->pt.eax))[0])
-#define AH(regs)	(((unsigned char *)&((regs)->pt.eax))[1])
-#define IP(regs)	(*(unsigned short *)&((regs)->pt.eip))
-#define SP(regs)	(*(unsigned short *)&((regs)->pt.esp))
+#define AL(regs)	(((unsigned char *)&((regs)->pt.ax))[0])
+#define AH(regs)	(((unsigned char *)&((regs)->pt.ax))[1])
+#define IP(regs)	(*(unsigned short *)&((regs)->pt.ip))
+#define SP(regs)	(*(unsigned short *)&((regs)->pt.sp))
 
 /*
  * virtual flags (16 and 32-bit versions)
@@ -93,12 +93,12 @@ static int copy_vm86_regs_to_user(struct vm86_regs __user *user,
 {
 	int ret = 0;
 
-	/* kernel_vm86_regs is missing xgs, so copy everything up to
+	/* kernel_vm86_regs is missing gs, so copy everything up to
 	   (but not including) orig_eax, and then rest including orig_eax. */
-	ret += copy_to_user(user, regs, offsetof(struct kernel_vm86_regs, pt.orig_eax));
-	ret += copy_to_user(&user->orig_eax, &regs->pt.orig_eax,
+	ret += copy_to_user(user, regs, offsetof(struct kernel_vm86_regs, pt.orig_ax));
+	ret += copy_to_user(&user->orig_eax, &regs->pt.orig_ax,
 			    sizeof(struct kernel_vm86_regs) -
-			    offsetof(struct kernel_vm86_regs, pt.orig_eax));
+			    offsetof(struct kernel_vm86_regs, pt.orig_ax));
 
 	return ret;
 }
@@ -110,12 +110,12 @@ static int copy_vm86_regs_from_user(struct kernel_vm86_regs *regs,
 {
 	int ret = 0;
 
-	/* copy eax-xfs inclusive */
-	ret += copy_from_user(regs, user, offsetof(struct kernel_vm86_regs, pt.orig_eax));
-	/* copy orig_eax-__gsh+extra */
-	ret += copy_from_user(&regs->pt.orig_eax, &user->orig_eax,
+	/* copy ax-fs inclusive */
+	ret += copy_from_user(regs, user, offsetof(struct kernel_vm86_regs, pt.orig_ax));
+	/* copy orig_ax-__gsh+extra */
+	ret += copy_from_user(&regs->pt.orig_ax, &user->orig_eax,
 			      sizeof(struct kernel_vm86_regs) -
-			      offsetof(struct kernel_vm86_regs, pt.orig_eax) +
+			      offsetof(struct kernel_vm86_regs, pt.orig_ax) +
 			      extra);
 	return ret;
 }
@@ -138,7 +138,7 @@ struct pt_regs * fastcall save_v86_state(struct kernel_vm86_regs * regs)
 		printk("no vm86_info: BAD\n");
 		do_exit(SIGSEGV);
 	}
-	set_flags(regs->pt.eflags, VEFLAGS, VIF_MASK | current->thread.v86mask);
+	set_flags(regs->pt.flags, VEFLAGS, VIF_MASK | current->thread.v86mask);
 	tmp = copy_vm86_regs_to_user(&current->thread.vm86_info->regs,regs);
 	tmp += put_user(current->thread.screen_bitmap,&current->thread.vm86_info->screen_bitmap);
 	if (tmp) {
@@ -155,7 +155,7 @@ struct pt_regs * fastcall save_v86_state(struct kernel_vm86_regs * regs)
 
 	ret = KVM86->regs32;
 
-	ret->xfs = current->thread.saved_fs;
+	ret->fs = current->thread.saved_fs;
 	loadsegment(gs, current->thread.saved_gs);
 
 	return ret;
@@ -197,7 +197,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
 
 asmlinkage int sys_vm86old(struct pt_regs regs)
 {
-	struct vm86_struct __user *v86 = (struct vm86_struct __user *)regs.ebx;
+	struct vm86_struct __user *v86 = (struct vm86_struct __user *)regs.bx;
 	struct kernel_vm86_struct info; /* declare this _on top_,
 					 * this avoids wasting of stack space.
 					 * This remains on the stack until we
@@ -237,12 +237,12 @@ asmlinkage int sys_vm86(struct pt_regs regs)
 	struct vm86plus_struct __user *v86;
 
 	tsk = current;
-	switch (regs.ebx) {
+	switch (regs.bx) {
 		case VM86_REQUEST_IRQ:
 		case VM86_FREE_IRQ:
 		case VM86_GET_IRQ_BITS:
 		case VM86_GET_AND_RESET_IRQ:
-			ret = do_vm86_irq_handling(regs.ebx, (int)regs.ecx);
+			ret = do_vm86_irq_handling(regs.bx, (int)regs.cx);
 			goto out;
 		case VM86_PLUS_INSTALL_CHECK:
 			/* NOTE: on old vm86 stuff this will return the error
@@ -258,7 +258,7 @@ asmlinkage int sys_vm86(struct pt_regs regs)
 	ret = -EPERM;
 	if (tsk->thread.saved_esp0)
 		goto out;
-	v86 = (struct vm86plus_struct __user *)regs.ecx;
+	v86 = (struct vm86plus_struct __user *)regs.cx;
 	tmp = copy_vm86_regs_from_user(&info.regs, &v86->regs,
 				       offsetof(struct kernel_vm86_struct, regs32) -
 				       sizeof(info.regs));
@@ -281,23 +281,23 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
 /*
  * make sure the vm86() system call doesn't try to do anything silly
  */
-	info->regs.pt.xds = 0;
-	info->regs.pt.xes = 0;
-	info->regs.pt.xfs = 0;
+	info->regs.pt.ds = 0;
+	info->regs.pt.es = 0;
+	info->regs.pt.fs = 0;
 
 /* we are clearing gs later just before "jmp resume_userspace",
  * because it is not saved/restored.
  */
 
 /*
- * The eflags register is also special: we cannot trust that the user
+ * The flags register is also special: we cannot trust that the user
  * has set it up safely, so this makes sure interrupt etc flags are
  * inherited from protected mode.
  */
- 	VEFLAGS = info->regs.pt.eflags;
-	info->regs.pt.eflags &= SAFE_MASK;
-	info->regs.pt.eflags |= info->regs32->eflags & ~SAFE_MASK;
-	info->regs.pt.eflags |= VM_MASK;
+	VEFLAGS = info->regs.pt.flags;
+	info->regs.pt.flags &= SAFE_MASK;
+	info->regs.pt.flags |= info->regs32->flags & ~SAFE_MASK;
+	info->regs.pt.flags |= VM_MASK;
 
 	switch (info->cpu_type) {
 		case CPU_286:
@@ -315,11 +315,11 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
 	}
 
 /*
- * Save old state, set default return value (%eax) to 0
+ * Save old state, set default return value (%ax) to 0
  */
-	info->regs32->eax = 0;
+	info->regs32->ax = 0;
 	tsk->thread.saved_esp0 = tsk->thread.esp0;
-	tsk->thread.saved_fs = info->regs32->xfs;
+	tsk->thread.saved_fs = info->regs32->fs;
 	savesegment(gs, tsk->thread.saved_gs);
 
 	tss = &per_cpu(init_tss, get_cpu());
@@ -352,7 +352,7 @@ static inline void return_to_32bit(struct kernel_vm86_regs * regs16, int retval)
 	struct pt_regs * regs32;
 
 	regs32 = save_v86_state(regs16);
-	regs32->eax = retval;
+	regs32->ax = retval;
 	__asm__ __volatile__("movl %0,%%esp\n\t"
 		"movl %1,%%ebp\n\t"
 		"jmp resume_userspace"
@@ -373,12 +373,12 @@ static inline void clear_IF(struct kernel_vm86_regs * regs)
 
 static inline void clear_TF(struct kernel_vm86_regs * regs)
 {
-	regs->pt.eflags &= ~TF_MASK;
+	regs->pt.flags &= ~TF_MASK;
 }
 
 static inline void clear_AC(struct kernel_vm86_regs * regs)
 {
-	regs->pt.eflags &= ~AC_MASK;
+	regs->pt.flags &= ~AC_MASK;
 }
 
 /* It is correct to call set_IF(regs) from the set_vflags_*
@@ -392,11 +392,11 @@ static inline void clear_AC(struct kernel_vm86_regs * regs)
  * [KD]
  */
 
-static inline void set_vflags_long(unsigned long eflags, struct kernel_vm86_regs * regs)
+static inline void set_vflags_long(unsigned long flags, struct kernel_vm86_regs * regs)
 {
-	set_flags(VEFLAGS, eflags, current->thread.v86mask);
-	set_flags(regs->pt.eflags, eflags, SAFE_MASK);
-	if (eflags & IF_MASK)
+	set_flags(VEFLAGS, flags, current->thread.v86mask);
+	set_flags(regs->pt.flags, flags, SAFE_MASK);
+	if (flags & IF_MASK)
 		set_IF(regs);
 	else
 		clear_IF(regs);
@@ -405,7 +405,7 @@ static inline void set_vflags_long(unsigned long eflags, struct kernel_vm86_regs
 static inline void set_vflags_short(unsigned short flags, struct kernel_vm86_regs * regs)
 {
 	set_flags(VFLAGS, flags, current->thread.v86mask);
-	set_flags(regs->pt.eflags, flags, SAFE_MASK);
+	set_flags(regs->pt.flags, flags, SAFE_MASK);
 	if (flags & IF_MASK)
 		set_IF(regs);
 	else
@@ -414,7 +414,7 @@ static inline void set_vflags_short(unsigned short flags, struct kernel_vm86_reg
 
 static inline unsigned long get_vflags(struct kernel_vm86_regs * regs)
 {
-	unsigned long flags = regs->pt.eflags & RETURN_MASK;
+	unsigned long flags = regs->pt.flags & RETURN_MASK;
 
 	if (VEFLAGS & VIF_MASK)
 		flags |= IF_MASK;
@@ -518,7 +518,7 @@ static void do_int(struct kernel_vm86_regs *regs, int i,
 	unsigned long __user *intr_ptr;
 	unsigned long segoffs;
 
-	if (regs->pt.xcs == BIOSSEG)
+	if (regs->pt.cs == BIOSSEG)
 		goto cannot_handle;
 	if (is_revectored(i, &KVM86->int_revectored))
 		goto cannot_handle;
@@ -530,9 +530,9 @@ static void do_int(struct kernel_vm86_regs *regs, int i,
 	if ((segoffs >> 16) == BIOSSEG)
 		goto cannot_handle;
 	pushw(ssp, sp, get_vflags(regs), cannot_handle);
-	pushw(ssp, sp, regs->pt.xcs, cannot_handle);
+	pushw(ssp, sp, regs->pt.cs, cannot_handle);
 	pushw(ssp, sp, IP(regs), cannot_handle);
-	regs->pt.xcs = segoffs >> 16;
+	regs->pt.cs = segoffs >> 16;
 	SP(regs) -= 6;
 	IP(regs) = segoffs & 0xffff;
 	clear_TF(regs);
@@ -549,7 +549,7 @@ int handle_vm86_trap(struct kernel_vm86_regs * regs, long error_code, int trapno
 	if (VMPI.is_vm86pus) {
 		if ( (trapno==3) || (trapno==1) )
 			return_to_32bit(regs, VM86_TRAP + (trapno << 8));
-		do_int(regs, trapno, (unsigned char __user *) (regs->pt.xss << 4), SP(regs));
+		do_int(regs, trapno, (unsigned char __user *) (regs->pt.ss << 4), SP(regs));
 		return 0;
 	}
 	if (trapno !=1)
@@ -585,10 +585,10 @@ void handle_vm86_fault(struct kernel_vm86_regs * regs, long error_code)
 		handle_vm86_trap(regs, 0, 1); \
 	return; } while (0)
 
-	orig_flags = *(unsigned short *)&regs->pt.eflags;
+	orig_flags = *(unsigned short *)&regs->pt.flags;
 
-	csp = (unsigned char __user *) (regs->pt.xcs << 4);
-	ssp = (unsigned char __user *) (regs->pt.xss << 4);
+	csp = (unsigned char __user *) (regs->pt.cs << 4);
+	ssp = (unsigned char __user *) (regs->pt.ss << 4);
 	sp = SP(regs);
 	ip = IP(regs);
 
@@ -675,7 +675,7 @@ void handle_vm86_fault(struct kernel_vm86_regs * regs, long error_code)
 			SP(regs) += 6;
 		}
 		IP(regs) = newip;
-		regs->pt.xcs = newcs;
+		regs->pt.cs = newcs;
 		CHECK_IF_IN_TRAP;
 		if (data32) {
 			set_vflags_long(newflags, regs);
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 87e5633805a9..599b6f2ed562 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -88,13 +88,13 @@ struct vmi_timer_ops vmi_timer_ops;
 #define IRQ_PATCH_DISABLE  5
 
 static inline void patch_offset(void *insnbuf,
-				unsigned long eip, unsigned long dest)
+				unsigned long ip, unsigned long dest)
 {
-        *(unsigned long *)(insnbuf+1) = dest-eip-5;
+        *(unsigned long *)(insnbuf+1) = dest-ip-5;
 }
 
 static unsigned patch_internal(int call, unsigned len, void *insnbuf,
-			       unsigned long eip)
+			       unsigned long ip)
 {
 	u64 reloc;
 	struct vmi_relocation_info *const rel = (struct vmi_relocation_info *)&reloc;
@@ -103,13 +103,13 @@ static unsigned patch_internal(int call, unsigned len, void *insnbuf,
 		case VMI_RELOCATION_CALL_REL:
 			BUG_ON(len < 5);
 			*(char *)insnbuf = MNEM_CALL;
-			patch_offset(insnbuf, eip, (unsigned long)rel->eip);
+			patch_offset(insnbuf, ip, (unsigned long)rel->eip);
 			return 5;
 
 		case VMI_RELOCATION_JUMP_REL:
 			BUG_ON(len < 5);
 			*(char *)insnbuf = MNEM_JMP;
-			patch_offset(insnbuf, eip, (unsigned long)rel->eip);
+			patch_offset(insnbuf, ip, (unsigned long)rel->eip);
 			return 5;
 
 		case VMI_RELOCATION_NOP:
@@ -131,25 +131,25 @@ static unsigned patch_internal(int call, unsigned len, void *insnbuf,
  * sequence.  The callee does nop padding for us.
  */
 static unsigned vmi_patch(u8 type, u16 clobbers, void *insns,
-			  unsigned long eip, unsigned len)
+			  unsigned long ip, unsigned len)
 {
 	switch (type) {
 		case PARAVIRT_PATCH(pv_irq_ops.irq_disable):
 			return patch_internal(VMI_CALL_DisableInterrupts, len,
-					      insns, eip);
+					      insns, ip);
 		case PARAVIRT_PATCH(pv_irq_ops.irq_enable):
 			return patch_internal(VMI_CALL_EnableInterrupts, len,
-					      insns, eip);
+					      insns, ip);
 		case PARAVIRT_PATCH(pv_irq_ops.restore_fl):
 			return patch_internal(VMI_CALL_SetInterruptMask, len,
-					      insns, eip);
+					      insns, ip);
 		case PARAVIRT_PATCH(pv_irq_ops.save_fl):
 			return patch_internal(VMI_CALL_GetInterruptMask, len,
-					      insns, eip);
+					      insns, ip);
 		case PARAVIRT_PATCH(pv_cpu_ops.iret):
-			return patch_internal(VMI_CALL_IRET, len, insns, eip);
+			return patch_internal(VMI_CALL_IRET, len, insns, ip);
 		case PARAVIRT_PATCH(pv_cpu_ops.irq_enable_syscall_ret):
-			return patch_internal(VMI_CALL_SYSEXIT, len, insns, eip);
+			return patch_internal(VMI_CALL_SYSEXIT, len, insns, ip);
 		default:
 			break;
 	}
@@ -157,29 +157,29 @@ static unsigned vmi_patch(u8 type, u16 clobbers, void *insns,
 }
 
 /* CPUID has non-C semantics, and paravirt-ops API doesn't match hardware ISA */
-static void vmi_cpuid(unsigned int *eax, unsigned int *ebx,
-                               unsigned int *ecx, unsigned int *edx)
+static void vmi_cpuid(unsigned int *ax, unsigned int *bx,
+                               unsigned int *cx, unsigned int *dx)
 {
 	int override = 0;
-	if (*eax == 1)
+	if (*ax == 1)
 		override = 1;
         asm volatile ("call *%6"
-                      : "=a" (*eax),
-                        "=b" (*ebx),
-                        "=c" (*ecx),
-                        "=d" (*edx)
-                      : "0" (*eax), "2" (*ecx), "r" (vmi_ops.cpuid));
+                      : "=a" (*ax),
+                        "=b" (*bx),
+                        "=c" (*cx),
+                        "=d" (*dx)
+                      : "0" (*ax), "2" (*cx), "r" (vmi_ops.cpuid));
 	if (override) {
 		if (disable_pse)
-			*edx &= ~X86_FEATURE_PSE;
+			*dx &= ~X86_FEATURE_PSE;
 		if (disable_pge)
-			*edx &= ~X86_FEATURE_PGE;
+			*dx &= ~X86_FEATURE_PGE;
 		if (disable_sep)
-			*edx &= ~X86_FEATURE_SEP;
+			*dx &= ~X86_FEATURE_SEP;
 		if (disable_tsc)
-			*edx &= ~X86_FEATURE_TSC;
+			*dx &= ~X86_FEATURE_TSC;
 		if (disable_mtrr)
-			*edx &= ~X86_FEATURE_MTRR;
+			*dx &= ~X86_FEATURE_MTRR;
 	}
 }
 
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index ad4005c6d4a1..018f7cf33790 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -43,7 +43,7 @@
 #include <asm/vgtod.h>
 
 #define __vsyscall(nr) __attribute__ ((unused,__section__(".vsyscall_" #nr)))
-#define __syscall_clobber "r11","rcx","memory"
+#define __syscall_clobber "r11","cx","memory"
 #define __pa_vsymbol(x)			\
 	({unsigned long v;  		\
 	extern char __vsyscall_0; 	\
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index df04bf884dd4..ea46d05853bb 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -175,8 +175,8 @@ static void lguest_leave_lazy_mode(void)
  * check there when it wants to deliver an interrupt.
  */
 
-/* save_flags() is expected to return the processor state (ie. "eflags").  The
- * eflags word contains all kind of stuff, but in practice Linux only cares
+/* save_flags() is expected to return the processor state (ie. "flags").  The
+ * flags word contains all kind of stuff, but in practice Linux only cares
  * about the interrupt flag.  Our "save_flags()" just returns that. */
 static unsigned long save_fl(void)
 {
@@ -323,30 +323,30 @@ static void lguest_load_tr_desc(void)
  * anyone (including userspace) can just use the raw "cpuid" instruction and
  * the Host won't even notice since it isn't privileged.  So we try not to get
  * too worked up about it. */
-static void lguest_cpuid(unsigned int *eax, unsigned int *ebx,
-			 unsigned int *ecx, unsigned int *edx)
+static void lguest_cpuid(unsigned int *ax, unsigned int *bx,
+			 unsigned int *cx, unsigned int *dx)
 {
-	int function = *eax;
+	int function = *ax;
 
-	native_cpuid(eax, ebx, ecx, edx);
+	native_cpuid(ax, bx, cx, dx);
 	switch (function) {
 	case 1:	/* Basic feature request. */
 		/* We only allow kernel to see SSE3, CMPXCHG16B and SSSE3 */
-		*ecx &= 0x00002201;
+		*cx &= 0x00002201;
 		/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, FPU. */
-		*edx &= 0x07808101;
+		*dx &= 0x07808101;
 		/* The Host can do a nice optimization if it knows that the
 		 * kernel mappings (addresses above 0xC0000000 or whatever
 		 * PAGE_OFFSET is set to) haven't changed.  But Linux calls
 		 * flush_tlb_user() for both user and kernel mappings unless
 		 * the Page Global Enable (PGE) feature bit is set. */
-		*edx |= 0x00002000;
+		*dx |= 0x00002000;
 		break;
 	case 0x80000000:
 		/* Futureproof this a little: if they ask how much extended
 		 * processor information there is, limit it to known fields. */
-		if (*eax > 0x80000008)
-			*eax = 0x80000008;
+		if (*ax > 0x80000008)
+			*ax = 0x80000008;
 		break;
 	}
 }
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index b472a2df0b7f..f2c13482acc0 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -526,7 +526,7 @@ static void __init do_boot_cpu(__u8 cpu)
 	 * initial kernel stack.  We need to alter this to give the
 	 * booting CPU a new stack (taken from its idle process) */
 	extern struct {
-		__u8 *esp;
+		__u8 *sp;
 		unsigned short ss;
 	} stack_start;
 	/* This is the format of the CPI IDT gate (in real mode) which
@@ -555,9 +555,9 @@ static void __init do_boot_cpu(__u8 cpu)
 	idle = fork_idle(cpu);
 	if (IS_ERR(idle))
 		panic("failed fork for CPU%d", cpu);
-	idle->thread.eip = (unsigned long)start_secondary;
+	idle->thread.ip = (unsigned long)start_secondary;
 	/* init_tasks (in sched.c) is indexed logically */
-	stack_start.esp = (void *)idle->thread.esp;
+	stack_start.sp = (void *)idle->thread.sp;
 
 	init_gdt(cpu);
 	per_cpu(current_task, cpu) = idle;
@@ -567,7 +567,7 @@ static void __init do_boot_cpu(__u8 cpu)
 	/* Note: Don't modify initial ss override */
 	VDEBUG(("VOYAGER SMP: Booting CPU%d at 0x%lx[%x:%x], stack %p\n", cpu,
 		(unsigned long)hijack_source.val, hijack_source.idt.Segment,
-		hijack_source.idt.Offset, stack_start.esp));
+		hijack_source.idt.Offset, stack_start.sp));
 
 	/* init lowmem identity mapping */
 	clone_pgd_range(swapper_pg_dir, swapper_pg_dir + USER_PGD_PTRS,
@@ -745,8 +745,8 @@ void __init initialize_secondary(void)
 	 */
 
 	asm volatile ("movl %0,%%esp\n\t"
-		      "jmp *%1"::"r" (current->thread.esp),
-		      "r"(current->thread.eip));
+		      "jmp *%1"::"r" (current->thread.sp),
+		      "r"(current->thread.ip));
 }
 
 /* handle a Voyager SYS_INT -- If we don't, the base board will
diff --git a/arch/x86/mm/extable_32.c b/arch/x86/mm/extable_32.c
index 0ce4f22a2635..41685461f8b2 100644
--- a/arch/x86/mm/extable_32.c
+++ b/arch/x86/mm/extable_32.c
@@ -11,7 +11,7 @@ int fixup_exception(struct pt_regs *regs)
 	const struct exception_table_entry *fixup;
 
 #ifdef CONFIG_PNPBIOS
-	if (unlikely(SEGMENT_IS_PNP_CODE(regs->xcs)))
+	if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs)))
 	{
 		extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
 		extern u32 pnp_bios_is_utter_crap;
@@ -25,9 +25,9 @@ int fixup_exception(struct pt_regs *regs)
 	}
 #endif
 
-	fixup = search_exception_tables(regs->eip);
+	fixup = search_exception_tables(regs->ip);
 	if (fixup) {
-		regs->eip = fixup->fixup;
+		regs->ip = fixup->fixup;
 		return 1;
 	}
 
diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index a2273d44aa27..6056c6d71835 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -72,15 +72,15 @@ static inline int notify_page_fault(struct pt_regs *regs)
 static inline unsigned long get_segment_eip(struct pt_regs *regs,
 					    unsigned long *eip_limit)
 {
-	unsigned long eip = regs->eip;
-	unsigned seg = regs->xcs & 0xffff;
+	unsigned long ip = regs->ip;
+	unsigned seg = regs->cs & 0xffff;
 	u32 seg_ar, seg_limit, base, *desc;
 
 	/* Unlikely, but must come before segment checks. */
-	if (unlikely(regs->eflags & VM_MASK)) {
+	if (unlikely(regs->flags & VM_MASK)) {
 		base = seg << 4;
 		*eip_limit = base + 0xffff;
-		return base + (eip & 0xffff);
+		return base + (ip & 0xffff);
 	}
 
 	/* The standard kernel/user address space limit. */
@@ -88,16 +88,16 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
 	
 	/* By far the most common cases. */
 	if (likely(SEGMENT_IS_FLAT_CODE(seg)))
-		return eip;
+		return ip;
 
 	/* Check the segment exists, is within the current LDT/GDT size,
 	   that kernel/user (ring 0..3) has the appropriate privilege,
 	   that it's a code segment, and get the limit. */
 	__asm__ ("larl %3,%0; lsll %3,%1"
 		 : "=&r" (seg_ar), "=r" (seg_limit) : "0" (0), "rm" (seg));
-	if ((~seg_ar & 0x9800) || eip > seg_limit) {
+	if ((~seg_ar & 0x9800) || ip > seg_limit) {
 		*eip_limit = 0;
-		return 1;	 /* So that returned eip > *eip_limit. */
+		return 1;	 /* So that returned ip > *eip_limit. */
 	}
 
 	/* Get the GDT/LDT descriptor base. 
@@ -127,7 +127,7 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
 	seg_limit += base;
 	if (seg_limit < *eip_limit && seg_limit >= base)
 		*eip_limit = seg_limit;
-	return eip + base;
+	return ip + base;
 }
 
 /* 
@@ -345,7 +345,7 @@ fastcall void __kprobes do_page_fault(struct pt_regs *regs,
 
 	/* It's safe to allow irq's after cr2 has been saved and the vmalloc
 	   fault has been handled. */
-	if (regs->eflags & (X86_EFLAGS_IF|VM_MASK))
+	if (regs->flags & (X86_EFLAGS_IF|VM_MASK))
 		local_irq_enable();
 
 	mm = tsk->mm;
@@ -374,7 +374,7 @@ fastcall void __kprobes do_page_fault(struct pt_regs *regs,
 	 */
 	if (!down_read_trylock(&mm->mmap_sem)) {
 		if ((error_code & 4) == 0 &&
-		    !search_exception_tables(regs->eip))
+		    !search_exception_tables(regs->ip))
 			goto bad_area_nosemaphore;
 		down_read(&mm->mmap_sem);
 	}
@@ -388,12 +388,12 @@ fastcall void __kprobes do_page_fault(struct pt_regs *regs,
 		goto bad_area;
 	if (error_code & 4) {
 		/*
-		 * Accessing the stack below %esp is always a bug.
+		 * Accessing the stack below %sp is always a bug.
 		 * The large cushion allows instructions like enter
 		 * and pusha to work.  ("enter $65535,$31" pushes
-		 * 32 pointers and then decrements %esp by 65535.)
+		 * 32 pointers and then decrements %sp by 65535.)
 		 */
-		if (address + 65536 + 32 * sizeof(unsigned long) < regs->esp)
+		if (address + 65536 + 32 * sizeof(unsigned long) < regs->sp)
 			goto bad_area;
 	}
 	if (expand_stack(vma, address))
@@ -442,7 +442,7 @@ good_area:
 	/*
 	 * Did it hit the DOS screen memory VA from vm86 mode?
 	 */
-	if (regs->eflags & VM_MASK) {
+	if (regs->flags & VM_MASK) {
 		unsigned long bit = (address - 0xA0000) >> PAGE_SHIFT;
 		if (bit < 32)
 			tsk->thread.screen_bitmap |= 1 << bit;
@@ -474,11 +474,11 @@ bad_area_nosemaphore:
 
 		if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
 		    printk_ratelimit()) {
-			printk("%s%s[%d]: segfault at %08lx eip %08lx "
-			    "esp %08lx error %lx\n",
+			printk("%s%s[%d]: segfault at %08lx ip %08lx "
+			    "sp %08lx error %lx\n",
 			    task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
-			    tsk->comm, task_pid_nr(tsk), address, regs->eip,
-			    regs->esp, error_code);
+			    tsk->comm, task_pid_nr(tsk), address, regs->ip,
+			    regs->sp, error_code);
 		}
 		tsk->thread.cr2 = address;
 		/* Kernel addresses are always protection faults */
@@ -544,7 +544,7 @@ no_context:
 			printk(KERN_ALERT "BUG: unable to handle kernel paging"
 					" request");
 		printk(" at virtual address %08lx\n",address);
-		printk(KERN_ALERT "printing eip: %08lx ", regs->eip);
+		printk(KERN_ALERT "printing ip: %08lx ", regs->ip);
 
 		page = read_cr3();
 		page = ((__typeof__(page) *) __va(page))[address >> PGDIR_SHIFT];
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 0e26230669ca..88a7abda29ce 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -198,7 +198,7 @@ KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
 static int is_errata93(struct pt_regs *regs, unsigned long address) 
 {
 	static int warned;
-	if (address != regs->rip)
+	if (address != regs->ip)
 		return 0;
 	if ((address >> 32) != 0) 
 		return 0;
@@ -209,7 +209,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
 			printk(errata93_warning); 		
 			warned = 1;
 		}
-		regs->rip = address;
+		regs->ip = address;
 		return 1;
 	}
 	return 0;
@@ -355,7 +355,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	if (notify_page_fault(regs))
 		return;
 
-	if (likely(regs->eflags & X86_EFLAGS_IF))
+	if (likely(regs->flags & X86_EFLAGS_IF))
 		local_irq_enable();
 
 	if (unlikely(error_code & PF_RSVD))
@@ -393,7 +393,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	 */
 	if (!down_read_trylock(&mm->mmap_sem)) {
 		if ((error_code & PF_USER) == 0 &&
-		    !search_exception_tables(regs->rip))
+		    !search_exception_tables(regs->ip))
 			goto bad_area_nosemaphore;
 		down_read(&mm->mmap_sem);
 	}
@@ -409,7 +409,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 		/* Allow userspace just enough access below the stack pointer
 		 * to let the 'enter' instruction work.
 		 */
-		if (address + 65536 + 32 * sizeof(unsigned long) < regs->rsp)
+		if (address + 65536 + 32 * sizeof(unsigned long) < regs->sp)
 			goto bad_area;
 	}
 	if (expand_stack(vma, address))
@@ -488,10 +488,10 @@ bad_area_nosemaphore:
 		if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
 		    printk_ratelimit()) {
 			printk(
-		       "%s%s[%d]: segfault at %lx rip %lx rsp %lx error %lx\n",
+		       "%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx\n",
 					tsk->pid > 1 ? KERN_INFO : KERN_EMERG,
-					tsk->comm, tsk->pid, address, regs->rip,
-					regs->rsp, error_code);
+					tsk->comm, tsk->pid, address, regs->ip,
+					regs->sp, error_code);
 		}
        
 		tsk->thread.cr2 = address;
@@ -509,9 +509,9 @@ bad_area_nosemaphore:
 no_context:
 	
 	/* Are we prepared to handle this kernel fault?  */
-	fixup = search_exception_tables(regs->rip);
+	fixup = search_exception_tables(regs->ip);
 	if (fixup) {
-		regs->rip = fixup->fixup;
+		regs->ip = fixup->fixup;
 		return;
 	}
 
@@ -537,7 +537,7 @@ no_context:
 	else
 		printk(KERN_ALERT "Unable to handle kernel paging request");
 	printk(" at %016lx RIP: \n" KERN_ALERT,address);
-	printk_address(regs->rip);
+	printk_address(regs->ip);
 	dump_pagetable(address);
 	tsk->thread.cr2 = address;
 	tsk->thread.trap_no = 14;
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index 0ed046a187f7..cc353a0b183e 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -48,7 +48,7 @@ static struct stacktrace_ops backtrace_ops = {
 };
 
 struct frame_head {
-	struct frame_head *ebp;
+	struct frame_head *bp;
 	unsigned long ret;
 } __attribute__((packed));
 
@@ -67,10 +67,10 @@ dump_user_backtrace(struct frame_head * head)
 
 	/* frame pointers should strictly progress back up the stack
 	 * (towards higher addresses) */
-	if (head >= bufhead[0].ebp)
+	if (head >= bufhead[0].bp)
 		return NULL;
 
-	return bufhead[0].ebp;
+	return bufhead[0].bp;
 }
 
 void
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index d3574485cb15..29517faaa735 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -141,8 +141,8 @@ static void __init xen_banner(void)
 	printk(KERN_INFO "Hypervisor signature: %s\n", xen_start_info->magic);
 }
 
-static void xen_cpuid(unsigned int *eax, unsigned int *ebx,
-		      unsigned int *ecx, unsigned int *edx)
+static void xen_cpuid(unsigned int *ax, unsigned int *bx,
+		      unsigned int *cx, unsigned int *dx)
 {
 	unsigned maskedx = ~0;
 
@@ -150,18 +150,18 @@ static void xen_cpuid(unsigned int *eax, unsigned int *ebx,
 	 * Mask out inconvenient features, to try and disable as many
 	 * unsupported kernel subsystems as possible.
 	 */
-	if (*eax == 1)
+	if (*ax == 1)
 		maskedx = ~((1 << X86_FEATURE_APIC) |  /* disable APIC */
 			    (1 << X86_FEATURE_ACPI) |  /* disable ACPI */
 			    (1 << X86_FEATURE_ACC));   /* thermal monitoring */
 
 	asm(XEN_EMULATE_PREFIX "cpuid"
-		: "=a" (*eax),
-		  "=b" (*ebx),
-		  "=c" (*ecx),
-		  "=d" (*edx)
-		: "0" (*eax), "2" (*ecx));
-	*edx &= maskedx;
+		: "=a" (*ax),
+		  "=b" (*bx),
+		  "=c" (*cx),
+		  "=d" (*dx)
+		: "0" (*ax), "2" (*cx));
+	*dx &= maskedx;
 }
 
 static void xen_set_debugreg(int reg, unsigned long val)
diff --git a/arch/x86/xen/events.c b/arch/x86/xen/events.c
index 6d1da5809e6f..aebab9704dd7 100644
--- a/arch/x86/xen/events.c
+++ b/arch/x86/xen/events.c
@@ -487,7 +487,7 @@ fastcall void xen_evtchn_do_upcall(struct pt_regs *regs)
 			int irq = evtchn_to_irq[port];
 
 			if (irq != -1) {
-				regs->orig_eax = ~irq;
+				regs->orig_ax = ~irq;
 				do_IRQ(regs);
 			}
 		}
diff --git a/include/asm-x86/compat.h b/include/asm-x86/compat.h
index 66ba7987184a..b270ee04959e 100644
--- a/include/asm-x86/compat.h
+++ b/include/asm-x86/compat.h
@@ -207,7 +207,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 static __inline__ void __user *compat_alloc_user_space(long len)
 {
 	struct pt_regs *regs = task_pt_regs(current);
-	return (void __user *)regs->rsp - len; 
+	return (void __user *)regs->sp - len;
 }
 
 static inline int is_compat_task(void)
diff --git a/include/asm-x86/elf.h b/include/asm-x86/elf.h
index 60f5101d9483..5e5705bf082a 100644
--- a/include/asm-x86/elf.h
+++ b/include/asm-x86/elf.h
@@ -99,32 +99,32 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
    just to make things more deterministic.
  */
 #define ELF_PLAT_INIT(_r, load_addr)	do { \
-	_r->ebx = 0; _r->ecx = 0; _r->edx = 0; \
-	_r->esi = 0; _r->edi = 0; _r->ebp = 0; \
-	_r->eax = 0; \
+	_r->bx = 0; _r->cx = 0; _r->dx = 0; \
+	_r->si = 0; _r->di = 0; _r->bp = 0; \
+	_r->ax = 0; \
 } while (0)
 
 /* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
    now struct_user_regs, they are different) */
 
 #define ELF_CORE_COPY_REGS(pr_reg, regs)		\
-	pr_reg[0] = regs->ebx;				\
-	pr_reg[1] = regs->ecx;				\
-	pr_reg[2] = regs->edx;				\
-	pr_reg[3] = regs->esi;				\
-	pr_reg[4] = regs->edi;				\
-	pr_reg[5] = regs->ebp;				\
-	pr_reg[6] = regs->eax;				\
-	pr_reg[7] = regs->xds & 0xffff;			\
-	pr_reg[8] = regs->xes & 0xffff;			\
-	pr_reg[9] = regs->xfs & 0xffff;			\
+	pr_reg[0] = regs->bx;				\
+	pr_reg[1] = regs->cx;				\
+	pr_reg[2] = regs->dx;				\
+	pr_reg[3] = regs->si;				\
+	pr_reg[4] = regs->di;				\
+	pr_reg[5] = regs->bp;				\
+	pr_reg[6] = regs->ax;				\
+	pr_reg[7] = regs->ds & 0xffff;			\
+	pr_reg[8] = regs->es & 0xffff;			\
+	pr_reg[9] = regs->fs & 0xffff;			\
 	savesegment(gs,pr_reg[10]);			\
-	pr_reg[11] = regs->orig_eax;			\
-	pr_reg[12] = regs->eip;				\
-	pr_reg[13] = regs->xcs & 0xffff;		\
-	pr_reg[14] = regs->eflags;			\
-	pr_reg[15] = regs->esp;				\
-	pr_reg[16] = regs->xss & 0xffff;
+	pr_reg[11] = regs->orig_ax;			\
+	pr_reg[12] = regs->ip;				\
+	pr_reg[13] = regs->cs & 0xffff;			\
+	pr_reg[14] = regs->flags;			\
+	pr_reg[15] = regs->sp;				\
+	pr_reg[16] = regs->ss & 0xffff;
 
 #define ELF_PLATFORM	(utsname()->machine)
 #define set_personality_64bit()	do { } while (0)
@@ -142,9 +142,9 @@ extern unsigned int vdso_enabled;
 
 #define ELF_PLAT_INIT(_r, load_addr)	do {		  \
 	struct task_struct *cur = current;		  \
-	(_r)->rbx = 0; (_r)->rcx = 0; (_r)->rdx = 0;	  \
-	(_r)->rsi = 0; (_r)->rdi = 0; (_r)->rbp = 0;	  \
-	(_r)->rax = 0;					  \
+	(_r)->bx = 0; (_r)->cx = 0; (_r)->dx = 0;	  \
+	(_r)->si = 0; (_r)->di = 0; (_r)->bp = 0;	  \
+	(_r)->ax = 0;					  \
 	(_r)->r8 = 0;					  \
 	(_r)->r9 = 0;					  \
 	(_r)->r10 = 0;					  \
@@ -169,22 +169,22 @@ extern unsigned int vdso_enabled;
 	(pr_reg)[1] = (regs)->r14;				\
 	(pr_reg)[2] = (regs)->r13;				\
 	(pr_reg)[3] = (regs)->r12;				\
-	(pr_reg)[4] = (regs)->rbp;				\
-	(pr_reg)[5] = (regs)->rbx;				\
+	(pr_reg)[4] = (regs)->bp;				\
+	(pr_reg)[5] = (regs)->bx;				\
 	(pr_reg)[6] = (regs)->r11;				\
 	(pr_reg)[7] = (regs)->r10;				\
 	(pr_reg)[8] = (regs)->r9;				\
 	(pr_reg)[9] = (regs)->r8;				\
-	(pr_reg)[10] = (regs)->rax;				\
-	(pr_reg)[11] = (regs)->rcx;				\
-	(pr_reg)[12] = (regs)->rdx;				\
-	(pr_reg)[13] = (regs)->rsi;				\
-	(pr_reg)[14] = (regs)->rdi;				\
-	(pr_reg)[15] = (regs)->orig_rax;			\
-	(pr_reg)[16] = (regs)->rip;				\
+	(pr_reg)[10] = (regs)->ax;				\
+	(pr_reg)[11] = (regs)->cx;				\
+	(pr_reg)[12] = (regs)->dx;				\
+	(pr_reg)[13] = (regs)->si;				\
+	(pr_reg)[14] = (regs)->di;				\
+	(pr_reg)[15] = (regs)->orig_ax;			\
+	(pr_reg)[16] = (regs)->ip;				\
 	(pr_reg)[17] = (regs)->cs;				\
-	(pr_reg)[18] = (regs)->eflags;				\
-	(pr_reg)[19] = (regs)->rsp;				\
+	(pr_reg)[18] = (regs)->flags;				\
+	(pr_reg)[19] = (regs)->sp;				\
 	(pr_reg)[20] = (regs)->ss;				\
 	(pr_reg)[21] = current->thread.fs;			\
 	(pr_reg)[22] = current->thread.gs;			\
diff --git a/include/asm-x86/kexec_32.h b/include/asm-x86/kexec_32.h
index 4b9dc9e6b701..ff39d2f88022 100644
--- a/include/asm-x86/kexec_32.h
+++ b/include/asm-x86/kexec_32.h
@@ -45,7 +45,7 @@
 /* We can also handle crash dumps from 64 bit kernel. */
 #define vmcore_elf_check_arch_cross(x) ((x)->e_machine == EM_X86_64)
 
-/* CPU does not save ss and esp on stack if execution is already
+/* CPU does not save ss and sp on stack if execution is already
  * running in kernel mode at the time of NMI occurrence. This code
  * fixes it.
  */
@@ -53,16 +53,16 @@ static inline void crash_fixup_ss_esp(struct pt_regs *newregs,
 					struct pt_regs *oldregs)
 {
 	memcpy(newregs, oldregs, sizeof(*newregs));
-	newregs->esp = (unsigned long)&(oldregs->esp);
+	newregs->sp = (unsigned long)&(oldregs->sp);
 	__asm__ __volatile__(
 			"xorl %%eax, %%eax\n\t"
 			"movw %%ss, %%ax\n\t"
-			:"=a"(newregs->xss));
+			:"=a"(newregs->ss));
 }
 
 /*
  * This function is responsible for capturing register states if coming
- * via panic otherwise just fix up the ss and esp if coming via kernel
+ * via panic otherwise just fix up the ss and sp if coming via kernel
  * mode exception.
  */
 static inline void crash_setup_regs(struct pt_regs *newregs,
@@ -71,21 +71,21 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
        if (oldregs)
                crash_fixup_ss_esp(newregs, oldregs);
        else {
-               __asm__ __volatile__("movl %%ebx,%0" : "=m"(newregs->ebx));
-               __asm__ __volatile__("movl %%ecx,%0" : "=m"(newregs->ecx));
-               __asm__ __volatile__("movl %%edx,%0" : "=m"(newregs->edx));
-               __asm__ __volatile__("movl %%esi,%0" : "=m"(newregs->esi));
-               __asm__ __volatile__("movl %%edi,%0" : "=m"(newregs->edi));
-               __asm__ __volatile__("movl %%ebp,%0" : "=m"(newregs->ebp));
-               __asm__ __volatile__("movl %%eax,%0" : "=m"(newregs->eax));
-               __asm__ __volatile__("movl %%esp,%0" : "=m"(newregs->esp));
-               __asm__ __volatile__("movw %%ss, %%ax;" :"=a"(newregs->xss));
-               __asm__ __volatile__("movw %%cs, %%ax;" :"=a"(newregs->xcs));
-               __asm__ __volatile__("movw %%ds, %%ax;" :"=a"(newregs->xds));
-               __asm__ __volatile__("movw %%es, %%ax;" :"=a"(newregs->xes));
-               __asm__ __volatile__("pushfl; popl %0" :"=m"(newregs->eflags));
+               __asm__ __volatile__("movl %%ebx,%0" : "=m"(newregs->bx));
+               __asm__ __volatile__("movl %%ecx,%0" : "=m"(newregs->cx));
+               __asm__ __volatile__("movl %%edx,%0" : "=m"(newregs->dx));
+               __asm__ __volatile__("movl %%esi,%0" : "=m"(newregs->si));
+               __asm__ __volatile__("movl %%edi,%0" : "=m"(newregs->di));
+               __asm__ __volatile__("movl %%ebp,%0" : "=m"(newregs->bp));
+               __asm__ __volatile__("movl %%eax,%0" : "=m"(newregs->ax));
+               __asm__ __volatile__("movl %%esp,%0" : "=m"(newregs->sp));
+               __asm__ __volatile__("movl %%ss, %%eax;" :"=a"(newregs->ss));
+               __asm__ __volatile__("movl %%cs, %%eax;" :"=a"(newregs->cs));
+               __asm__ __volatile__("movl %%ds, %%eax;" :"=a"(newregs->ds));
+               __asm__ __volatile__("movl %%es, %%eax;" :"=a"(newregs->es));
+               __asm__ __volatile__("pushfl; popl %0" :"=m"(newregs->flags));
 
-               newregs->eip = (unsigned long)current_text_addr();
+               newregs->ip = (unsigned long)current_text_addr();
        }
 }
 asmlinkage NORET_TYPE void
diff --git a/include/asm-x86/kexec_64.h b/include/asm-x86/kexec_64.h
index 738e581b67f8..b5f989b15c0b 100644
--- a/include/asm-x86/kexec_64.h
+++ b/include/asm-x86/kexec_64.h
@@ -60,14 +60,14 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
 	if (oldregs)
 		memcpy(newregs, oldregs, sizeof(*newregs));
 	else {
-		__asm__ __volatile__("movq %%rbx,%0" : "=m"(newregs->rbx));
-		__asm__ __volatile__("movq %%rcx,%0" : "=m"(newregs->rcx));
-		__asm__ __volatile__("movq %%rdx,%0" : "=m"(newregs->rdx));
-		__asm__ __volatile__("movq %%rsi,%0" : "=m"(newregs->rsi));
-		__asm__ __volatile__("movq %%rdi,%0" : "=m"(newregs->rdi));
-		__asm__ __volatile__("movq %%rbp,%0" : "=m"(newregs->rbp));
-		__asm__ __volatile__("movq %%rax,%0" : "=m"(newregs->rax));
-		__asm__ __volatile__("movq %%rsp,%0" : "=m"(newregs->rsp));
+		__asm__ __volatile__("movq %%rbx,%0" : "=m"(newregs->bx));
+		__asm__ __volatile__("movq %%rcx,%0" : "=m"(newregs->cx));
+		__asm__ __volatile__("movq %%rdx,%0" : "=m"(newregs->dx));
+		__asm__ __volatile__("movq %%rsi,%0" : "=m"(newregs->si));
+		__asm__ __volatile__("movq %%rdi,%0" : "=m"(newregs->di));
+		__asm__ __volatile__("movq %%rbp,%0" : "=m"(newregs->bp));
+		__asm__ __volatile__("movq %%rax,%0" : "=m"(newregs->ax));
+		__asm__ __volatile__("movq %%rsp,%0" : "=m"(newregs->sp));
 		__asm__ __volatile__("movq %%r8,%0" : "=m"(newregs->r8));
 		__asm__ __volatile__("movq %%r9,%0" : "=m"(newregs->r9));
 		__asm__ __volatile__("movq %%r10,%0" : "=m"(newregs->r10));
@@ -78,9 +78,9 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
 		__asm__ __volatile__("movq %%r15,%0" : "=m"(newregs->r15));
 		__asm__ __volatile__("movl %%ss, %%eax;" :"=a"(newregs->ss));
 		__asm__ __volatile__("movl %%cs, %%eax;" :"=a"(newregs->cs));
-		__asm__ __volatile__("pushfq; popq %0" :"=m"(newregs->eflags));
+		__asm__ __volatile__("pushfq; popq %0" :"=m"(newregs->flags));
 
-		newregs->rip = (unsigned long)current_text_addr();
+		newregs->ip = (unsigned long)current_text_addr();
 	}
 }
 
diff --git a/include/asm-x86/kprobes_32.h b/include/asm-x86/kprobes_32.h
index 9fe8f3bddfd5..2f38315bc39f 100644
--- a/include/asm-x86/kprobes_32.h
+++ b/include/asm-x86/kprobes_32.h
@@ -84,7 +84,7 @@ struct kprobe_ctlblk {
  */
 static inline void restore_interrupts(struct pt_regs *regs)
 {
-	if (regs->eflags & IF_MASK)
+	if (regs->flags & IF_MASK)
 		local_irq_enable();
 }
 
diff --git a/include/asm-x86/kprobes_64.h b/include/asm-x86/kprobes_64.h
index 743d76218fc9..8c919d35cdd3 100644
--- a/include/asm-x86/kprobes_64.h
+++ b/include/asm-x86/kprobes_64.h
@@ -77,7 +77,7 @@ struct kprobe_ctlblk {
  */
 static inline void restore_interrupts(struct pt_regs *regs)
 {
-	if (regs->eflags & IF_MASK)
+	if (regs->flags & IF_MASK)
 		local_irq_enable();
 }
 
diff --git a/include/asm-x86/mce.h b/include/asm-x86/mce.h
index e6ff507a73b0..94f1fd79e22a 100644
--- a/include/asm-x86/mce.h
+++ b/include/asm-x86/mce.h
@@ -13,7 +13,7 @@
 #define MCG_CTL_P	 (1UL<<8)   /* MCG_CAP register available */
 
 #define MCG_STATUS_RIPV  (1UL<<0)   /* restart ip valid */
-#define MCG_STATUS_EIPV  (1UL<<1)   /* eip points to correct instruction */
+#define MCG_STATUS_EIPV  (1UL<<1)   /* ip points to correct instruction */
 #define MCG_STATUS_MCIP  (1UL<<2)   /* machine check in progress */
 
 #define MCI_STATUS_VAL   (1UL<<63)  /* valid error */
@@ -30,7 +30,7 @@ struct mce {
 	__u64 misc;
 	__u64 addr;
 	__u64 mcgstatus;
-	__u64 rip;
+	__u64 ip;
 	__u64 tsc;	/* cpu time stamp counter */
 	__u64 res1;	/* for future extension */
 	__u64 res2;	/* dito. */
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index 3c67eacb3168..c85400fe58c4 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -398,14 +398,14 @@ struct thread_struct {
 
 #define start_thread(regs, new_eip, new_esp) do {		\
 	__asm__("movl %0,%%gs": :"r" (0));			\
-	regs->xfs = 0;						\
+	regs->fs = 0;						\
 	set_fs(USER_DS);					\
-	regs->xds = __USER_DS;					\
-	regs->xes = __USER_DS;					\
-	regs->xss = __USER_DS;					\
-	regs->xcs = __USER_CS;					\
-	regs->eip = new_eip;					\
-	regs->esp = new_esp;					\
+	regs->ds = __USER_DS;					\
+	regs->es = __USER_DS;					\
+	regs->ss = __USER_DS;					\
+	regs->cs = __USER_CS;					\
+	regs->ip = new_eip;					\
+	regs->sp = new_esp;					\
 } while (0)
 
 /* Forward declaration, a strange C thing */
@@ -440,7 +440,7 @@ unsigned long get_wchan(struct task_struct *p);
  * is accessable even if the CPU haven't stored the SS/ESP registers
  * on the stack (interrupt gate does not save these registers
  * when switching to the same priv ring).
- * Therefore beware: accessing the xss/esp fields of the
+ * Therefore beware: accessing the ss/esp fields of the
  * "struct pt_regs" is possible, but they may contain the
  * completely wrong values.
  */
@@ -451,8 +451,8 @@ unsigned long get_wchan(struct task_struct *p);
        __regs__ - 1;                                                   \
 })
 
-#define KSTK_EIP(task) (task_pt_regs(task)->eip)
-#define KSTK_ESP(task) (task_pt_regs(task)->esp)
+#define KSTK_EIP(task) (task_pt_regs(task)->ip)
+#define KSTK_ESP(task) (task_pt_regs(task)->sp)
 
 
 struct microcode_header {
diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h
index e7bea4fed642..797770113e6d 100644
--- a/include/asm-x86/processor_64.h
+++ b/include/asm-x86/processor_64.h
@@ -258,12 +258,12 @@ struct thread_struct {
 #define start_thread(regs,new_rip,new_rsp) do { \
 	asm volatile("movl %0,%%fs; movl %0,%%es; movl %0,%%ds": :"r" (0));	 \
 	load_gs_index(0);							\
-	(regs)->rip = (new_rip);						 \
-	(regs)->rsp = (new_rsp);						 \
+	(regs)->ip = (new_rip);						 \
+	(regs)->sp = (new_rsp);						 \
 	write_pda(oldrsp, (new_rsp));						 \
 	(regs)->cs = __USER_CS;							 \
 	(regs)->ss = __USER_DS;							 \
-	(regs)->eflags = 0x200;							 \
+	(regs)->flags = 0x200;							 \
 	set_fs(USER_DS);							 \
 } while(0) 
 
@@ -297,7 +297,7 @@ extern long kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
 
 extern unsigned long get_wchan(struct task_struct *p);
 #define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.rsp0 - 1)
-#define KSTK_EIP(tsk) (task_pt_regs(tsk)->rip)
+#define KSTK_EIP(tsk) (task_pt_regs(tsk)->ip)
 #define KSTK_ESP(tsk) -1 /* sorry. doesn't work for syscall. */
 
 
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index 04204f359298..9187b2fab754 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -10,6 +10,8 @@
 /* this struct defines the way the registers are stored on the
    stack during a system call. */
 
+#ifndef __KERNEL__
+
 struct pt_regs {
 	long ebx;
 	long ecx;
@@ -21,7 +23,7 @@ struct pt_regs {
 	int  xds;
 	int  xes;
 	int  xfs;
-	/* int  xgs; */
+	/* int  gs; */
 	long orig_eax;
 	long eip;
 	int  xcs;
@@ -30,7 +32,27 @@ struct pt_regs {
 	int  xss;
 };
 
-#ifdef __KERNEL__
+#else /* __KERNEL__ */
+
+struct pt_regs {
+	long bx;
+	long cx;
+	long dx;
+	long si;
+	long di;
+	long bp;
+	long ax;
+	int  ds;
+	int  es;
+	int  fs;
+	/* int  gs; */
+	long orig_ax;
+	long ip;
+	int  cs;
+	long flags;
+	long sp;
+	int  ss;
+};
 
 #include <asm/vm86.h>
 #include <asm/segment.h>
@@ -47,27 +69,30 @@ extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int erro
  */
 static inline int user_mode(struct pt_regs *regs)
 {
-	return (regs->xcs & SEGMENT_RPL_MASK) == USER_RPL;
+	return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL;
 }
 static inline int user_mode_vm(struct pt_regs *regs)
 {
-	return ((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= USER_RPL;
+	return ((regs->cs & SEGMENT_RPL_MASK) |
+		(regs->flags & VM_MASK)) >= USER_RPL;
 }
 static inline int v8086_mode(struct pt_regs *regs)
 {
-	return (regs->eflags & VM_MASK);
+	return (regs->flags & VM_MASK);
 }
 
-#define instruction_pointer(regs) ((regs)->eip)
-#define frame_pointer(regs) ((regs)->ebp)
+#define instruction_pointer(regs) ((regs)->ip)
+#define frame_pointer(regs) ((regs)->bp)
 #define stack_pointer(regs) ((unsigned long)(regs))
-#define regs_return_value(regs) ((regs)->eax)
+#define regs_return_value(regs) ((regs)->ax)
 
 extern unsigned long profile_pc(struct pt_regs *regs);
 #endif /* __KERNEL__ */
 
 #else /* __i386__ */
 
+#ifndef __KERNEL__
+
 struct pt_regs {
 	unsigned long r15;
 	unsigned long r14;
@@ -96,14 +121,43 @@ struct pt_regs {
 /* top of stack page */
 };
 
-#ifdef __KERNEL__
+#else /* __KERNEL__ */
+
+struct pt_regs {
+	unsigned long r15;
+	unsigned long r14;
+	unsigned long r13;
+	unsigned long r12;
+	unsigned long bp;
+	unsigned long bx;
+/* arguments: non interrupts/non tracing syscalls only save upto here*/
+	unsigned long r11;
+	unsigned long r10;
+	unsigned long r9;
+	unsigned long r8;
+	unsigned long ax;
+	unsigned long cx;
+	unsigned long dx;
+	unsigned long si;
+	unsigned long di;
+	unsigned long orig_ax;
+/* end of arguments */
+/* cpu exception frame or undefined */
+	unsigned long ip;
+	unsigned long cs;
+	unsigned long flags;
+	unsigned long sp;
+	unsigned long ss;
+/* top of stack page */
+};
 
 #define user_mode(regs) (!!((regs)->cs & 3))
 #define user_mode_vm(regs) user_mode(regs)
-#define instruction_pointer(regs) ((regs)->rip)
-#define frame_pointer(regs) ((regs)->rbp)
-#define stack_pointer(regs) ((regs)->rsp)
-#define regs_return_value(regs) ((regs)->rax)
+#define v8086_mode(regs) 0	/* No V86 mode support in long mode */
+#define instruction_pointer(regs) ((regs)->ip)
+#define frame_pointer(regs) ((regs)->bp)
+#define stack_pointer(regs) ((regs)->sp)
+#define regs_return_value(regs) ((regs)->ax)
 
 extern unsigned long profile_pc(struct pt_regs *regs);
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
diff --git a/kernel/signal.c b/kernel/signal.c
index afa4f781f924..bf49ce6f016b 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -733,13 +733,13 @@ static void print_fatal_signal(struct pt_regs *regs, int signr)
 		current->comm, task_pid_nr(current), signr);
 
 #if defined(__i386__) && !defined(__arch_um__)
-	printk("code at %08lx: ", regs->eip);
+	printk("code at %08lx: ", regs->ip);
 	{
 		int i;
 		for (i = 0; i < 16; i++) {
 			unsigned char insn;
 
-			__get_user(insn, (unsigned char *)(regs->eip + i));
+			__get_user(insn, (unsigned char *)(regs->ip + i));
 			printk("%02x ", insn);
 		}
 	}
-- 
cgit v1.2.3-59-g8ed1b


From 153d5f2e5787c74e9cbb6b6687c9b04be1b59893 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:30:56 +0100
Subject: x86: use generic register names in struct user_regs_struct

Switch struct user_regs_struct (defined in <asm/user.h>, which is no
longer exported to userspace) to using register names without e- or
r-prefixes for both 32 and 64 bit x86.  This is intended as a
preliminary step in unifying this code between architectures.

Also, be a bit more strict in truncating 32-bit "extended" segment
register values to 16 bits.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_32.c | 35 ++++++++++++++++++-----------------
 arch/x86/kernel/ptrace_64.c  |  4 ++--
 include/asm-x86/user_32.h    | 24 +++++++++++++++++-------
 include/asm-x86/user_64.h    | 41 +++++++++++++++++++++++++++++++----------
 4 files changed, 68 insertions(+), 36 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index c9f28e02e86d..53406461074f 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -523,6 +523,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 void dump_thread(struct pt_regs * regs, struct user * dump)
 {
 	int i;
+	u16 gs;
 
 /* changed the size calculations - should hopefully work better. lbt */
 	dump->magic = CMAGIC;
@@ -538,23 +539,23 @@ void dump_thread(struct pt_regs * regs, struct user * dump)
 	if (dump->start_stack < TASK_SIZE)
 		dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
 
-	dump->regs.ebx = regs->bx;
-	dump->regs.ecx = regs->cx;
-	dump->regs.edx = regs->dx;
-	dump->regs.esi = regs->si;
-	dump->regs.edi = regs->di;
-	dump->regs.ebp = regs->bp;
-	dump->regs.eax = regs->ax;
-	dump->regs.ds = regs->ds;
-	dump->regs.es = regs->es;
-	dump->regs.fs = regs->fs;
-	savesegment(gs,dump->regs.gs);
-	dump->regs.orig_eax = regs->orig_ax;
-	dump->regs.eip = regs->ip;
-	dump->regs.cs = regs->cs;
-	dump->regs.eflags = regs->flags;
-	dump->regs.esp = regs->sp;
-	dump->regs.ss = regs->ss;
+	dump->regs.bx = regs->bx;
+	dump->regs.cx = regs->cx;
+	dump->regs.dx = regs->dx;
+	dump->regs.si = regs->si;
+	dump->regs.di = regs->di;
+	dump->regs.bp = regs->bp;
+	dump->regs.ax = regs->ax;
+	dump->regs.ds = (u16)regs->ds;
+	dump->regs.es = (u16)regs->es;
+	dump->regs.fs = (u16)regs->fs;
+	savesegment(gs,gs);
+	dump->regs.orig_ax = regs->orig_ax;
+	dump->regs.ip = regs->ip;
+	dump->regs.cs = (u16)regs->cs;
+	dump->regs.flags = regs->flags;
+	dump->regs.sp = regs->sp;
+	dump->regs.ss = (u16)regs->ss;
 
 	dump->u_fpvalid = dump_fpu (regs, &dump->i387);
 }
diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index bee20bb1a6c0..56b31cd3b865 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -108,7 +108,7 @@ static int putreg(struct task_struct *child,
 			if (child->thread.gs != value)
 				return do_arch_prctl(child, ARCH_SET_GS, value);
 			return 0;
-		case offsetof(struct user_regs_struct, eflags):
+		case offsetof(struct user_regs_struct,flags):
 			value &= FLAG_MASK;
 			/*
 			 * If the user value contains TF, mark that
@@ -164,7 +164,7 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 			if (child->thread.gsindex != GS_TLS_SEL)
 				return 0;
 			return get_desc_base(&child->thread.tls_array[GS_TLS]);
-		case offsetof(struct user_regs_struct, eflags):
+		case offsetof(struct user_regs_struct, flags):
 			/*
 			 * If the debugger set TF, hide it from the readout.
 			 */
diff --git a/include/asm-x86/user_32.h b/include/asm-x86/user_32.h
index 0e85d2a5e33a..ed8b8fc6906c 100644
--- a/include/asm-x86/user_32.h
+++ b/include/asm-x86/user_32.h
@@ -75,13 +75,23 @@ struct user_fxsr_struct {
  * doesn't use the extra segment registers)
  */
 struct user_regs_struct {
-	long ebx, ecx, edx, esi, edi, ebp, eax;
-	unsigned short ds, __ds, es, __es;
-	unsigned short fs, __fs, gs, __gs;
-	long orig_eax, eip;
-	unsigned short cs, __cs;
-	long eflags, esp;
-	unsigned short ss, __ss;
+	unsigned long	bx;
+	unsigned long	cx;
+	unsigned long	dx;
+	unsigned long	si;
+	unsigned long	di;
+	unsigned long	bp;
+	unsigned long	ax;
+	unsigned long	ds;
+	unsigned long	es;
+	unsigned long	fs;
+	unsigned long	gs;
+	unsigned long	orig_ax;
+	unsigned long	ip;
+	unsigned long	cs;
+	unsigned long	flags;
+	unsigned long	sp;
+	unsigned long	ss;
 };
 
 /* When the kernel dumps core, it starts by dumping the user struct -
diff --git a/include/asm-x86/user_64.h b/include/asm-x86/user_64.h
index 12785c649ac5..a5449d456cc0 100644
--- a/include/asm-x86/user_64.h
+++ b/include/asm-x86/user_64.h
@@ -40,13 +40,13 @@
  * and both the standard and SIMD floating point data can be accessed via
  * the new ptrace requests.  In either case, changes to the FPU environment
  * will be reflected in the task's state as expected.
- * 
+ *
  * x86-64 support by Andi Kleen.
  */
 
 /* This matches the 64bit FXSAVE format as defined by AMD. It is the same
    as the 32bit format defined by Intel, except that the selector:offset pairs for
-   data and eip are replaced with flat 64bit pointers. */ 
+   data and eip are replaced with flat 64bit pointers. */
 struct user_i387_struct {
 	unsigned short	cwd;
 	unsigned short	swd;
@@ -65,13 +65,34 @@ struct user_i387_struct {
  * Segment register layout in coredumps.
  */
 struct user_regs_struct {
-	unsigned long r15,r14,r13,r12,rbp,rbx,r11,r10;
-	unsigned long r9,r8,rax,rcx,rdx,rsi,rdi,orig_rax;
-	unsigned long rip,cs,eflags;
-	unsigned long rsp,ss;
-  	unsigned long fs_base, gs_base;
-	unsigned long ds,es,fs,gs; 
-}; 
+	unsigned long	r15;
+	unsigned long	r14;
+	unsigned long	r13;
+	unsigned long	r12;
+	unsigned long	bp;
+	unsigned long	bx;
+	unsigned long	r11;
+	unsigned long	r10;
+	unsigned long	r9;
+	unsigned long	r8;
+	unsigned long	ax;
+	unsigned long	cx;
+	unsigned long	dx;
+	unsigned long	si;
+	unsigned long	di;
+	unsigned long	orig_ax;
+	unsigned long	ip;
+	unsigned long	cs;
+	unsigned long	flags;
+	unsigned long	sp;
+	unsigned long	ss;
+	unsigned long	fs_base;
+	unsigned long	gs_base;
+	unsigned long	ds;
+	unsigned long	es;
+	unsigned long	fs;
+	unsigned long	gs;
+};
 
 /* When the kernel dumps core, it starts by dumping the user struct -
    this will be used by gdb to figure out where the data and stack segments
@@ -94,7 +115,7 @@ struct user{
 				   This is actually the bottom of the stack,
 				   the top of the stack is always found in the
 				   esp register.  */
-  long int signal;     		/* Signal that caused the core dump. */
+  long int signal;		/* Signal that caused the core dump. */
   int reserved;			/* No longer used */
   int pad1;
   struct user_pt_regs * u_ar0;	/* Used by gdb to help find the values for */
-- 
cgit v1.2.3-59-g8ed1b


From 742fa54a62be6a263df14a553bf832724471dfbe Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:30:56 +0100
Subject: x86: use generic register names in struct sigcontext

Switch struct sigcontext (defined in <asm/sigcontext*.h>) to using
register names withut e- or r-prefixes for both 32- and 64-bit x86.
This is intended as a preliminary step in unifying this code between
architectures.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ia32_signal.c      | 32 ++++++++++++------------
 arch/x86/kernel/asm-offsets_32.c | 18 +++++++-------
 arch/x86/kernel/asm-offsets_64.c | 18 +++++++-------
 arch/x86/kernel/signal_32.c      | 28 ++++++++++-----------
 arch/x86/kernel/signal_64.c      | 29 +++++++++++----------
 arch/x86/vdso/vdso32/sigreturn.S | 54 ++++++++++++++++++++--------------------
 include/asm-x86/sigcontext.h     | 42 +++++++++++++++----------------
 include/asm-x86/sigcontext32.h   | 22 ++++++++--------
 8 files changed, 121 insertions(+), 122 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index f2da443f8c7b..d03d43f32f4c 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -192,9 +192,9 @@ struct rt_sigframe
 	char retcode[8];
 };
 
-#define COPY(x)		{ \
-	unsigned int reg;			\
-	err |= __get_user(reg, &sc->e ##x);	\
+#define COPY(x)		{ 		\
+	unsigned int reg;		\
+	err |= __get_user(reg, &sc->x);	\
 	regs->x = reg;			\
 }
 
@@ -248,7 +248,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
 	err |= __get_user(regs->ss, &sc->ss);
 	regs->ss |= 3;
 
-	err |= __get_user(tmpflags, &sc->eflags);
+	err |= __get_user(tmpflags, &sc->flags);
 	regs->flags = (regs->flags & ~0x40DD5) | (tmpflags & 0x40DD5);
 	/* disable syscall checks */
 	regs->orig_ax = -1;
@@ -268,7 +268,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
 		}
 	}
 
-	err |= __get_user(tmp, &sc->eax);
+	err |= __get_user(tmp, &sc->ax);
 	*peax = tmp;
 
 	return err;
@@ -361,21 +361,21 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
 	__asm__("movl %%es,%0" : "=r"(tmp): "0"(tmp));
 	err |= __put_user(tmp, (unsigned int __user *)&sc->es);
 
-	err |= __put_user((u32)regs->di, &sc->edi);
-	err |= __put_user((u32)regs->si, &sc->esi);
-	err |= __put_user((u32)regs->bp, &sc->ebp);
-	err |= __put_user((u32)regs->sp, &sc->esp);
-	err |= __put_user((u32)regs->bx, &sc->ebx);
-	err |= __put_user((u32)regs->dx, &sc->edx);
-	err |= __put_user((u32)regs->cx, &sc->ecx);
-	err |= __put_user((u32)regs->ax, &sc->eax);
+	err |= __put_user((u32)regs->di, &sc->di);
+	err |= __put_user((u32)regs->si, &sc->si);
+	err |= __put_user((u32)regs->bp, &sc->bp);
+	err |= __put_user((u32)regs->sp, &sc->sp);
+	err |= __put_user((u32)regs->bx, &sc->bx);
+	err |= __put_user((u32)regs->dx, &sc->dx);
+	err |= __put_user((u32)regs->cx, &sc->cx);
+	err |= __put_user((u32)regs->ax, &sc->ax);
 	err |= __put_user((u32)regs->cs, &sc->cs);
 	err |= __put_user((u32)regs->ss, &sc->ss);
 	err |= __put_user(current->thread.trap_no, &sc->trapno);
 	err |= __put_user(current->thread.error_code, &sc->err);
-	err |= __put_user((u32)regs->ip, &sc->eip);
-	err |= __put_user((u32)regs->flags, &sc->eflags);
-	err |= __put_user((u32)regs->sp, &sc->esp_at_signal);
+	err |= __put_user((u32)regs->ip, &sc->ip);
+	err |= __put_user((u32)regs->flags, &sc->flags);
+	err |= __put_user((u32)regs->sp, &sc->sp_at_signal);
 
 	tmp = save_i387_ia32(current, fpstate, regs, 0);
 	if (tmp < 0)
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index a3a8be7618d1..4fc24a61f431 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -38,15 +38,15 @@ void foo(void);
 
 void foo(void)
 {
-	OFFSET(IA32_SIGCONTEXT_eax, sigcontext, eax);
-	OFFSET(IA32_SIGCONTEXT_ebx, sigcontext, ebx);
-	OFFSET(IA32_SIGCONTEXT_ecx, sigcontext, ecx);
-	OFFSET(IA32_SIGCONTEXT_edx, sigcontext, edx);
-	OFFSET(IA32_SIGCONTEXT_esi, sigcontext, esi);
-	OFFSET(IA32_SIGCONTEXT_edi, sigcontext, edi);
-	OFFSET(IA32_SIGCONTEXT_ebp, sigcontext, ebp);
-	OFFSET(IA32_SIGCONTEXT_esp, sigcontext, esp);
-	OFFSET(IA32_SIGCONTEXT_eip, sigcontext, eip);
+	OFFSET(IA32_SIGCONTEXT_ax, sigcontext, ax);
+	OFFSET(IA32_SIGCONTEXT_bx, sigcontext, bx);
+	OFFSET(IA32_SIGCONTEXT_cx, sigcontext, cx);
+	OFFSET(IA32_SIGCONTEXT_dx, sigcontext, dx);
+	OFFSET(IA32_SIGCONTEXT_si, sigcontext, si);
+	OFFSET(IA32_SIGCONTEXT_di, sigcontext, di);
+	OFFSET(IA32_SIGCONTEXT_bp, sigcontext, bp);
+	OFFSET(IA32_SIGCONTEXT_sp, sigcontext, sp);
+	OFFSET(IA32_SIGCONTEXT_ip, sigcontext, ip);
 	BLANK();
 
 	OFFSET(CPUINFO_x86, cpuinfo_x86, x86);
diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index 2e918ebf21d3..a05428764314 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -63,15 +63,15 @@ int main(void)
 #undef ENTRY
 #ifdef CONFIG_IA32_EMULATION
 #define ENTRY(entry) DEFINE(IA32_SIGCONTEXT_ ## entry, offsetof(struct sigcontext_ia32, entry))
-	ENTRY(eax);
-	ENTRY(ebx);
-	ENTRY(ecx);
-	ENTRY(edx);
-	ENTRY(esi);
-	ENTRY(edi);
-	ENTRY(ebp);
-	ENTRY(esp);
-	ENTRY(eip);
+	ENTRY(ax);
+	ENTRY(bx);
+	ENTRY(cx);
+	ENTRY(dx);
+	ENTRY(si);
+	ENTRY(di);
+	ENTRY(bp);
+	ENTRY(sp);
+	ENTRY(ip);
 	BLANK();
 #undef ENTRY
 	DEFINE(IA32_RT_SIGFRAME_sigcontext,
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 40fd3515ccf1..64cb3c05de69 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -105,7 +105,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax
 	/* Always make any pending restarted system calls return -EINTR */
 	current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
-#define COPY(x)		err |= __get_user(regs->x, &sc->e ## x)
+#define COPY(x)		err |= __get_user(regs->x, &sc->x)
 
 #define COPY_SEG(seg)							\
 	{ unsigned short tmp;						\
@@ -144,7 +144,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax
 	
 	{
 		unsigned int tmpflags;
-		err |= __get_user(tmpflags, &sc->eflags);
+		err |= __get_user(tmpflags, &sc->flags);
 		regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS);
 		regs->orig_ax = -1;		/* disable syscall checks */
 	}
@@ -165,7 +165,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax
 		}
 	}
 
-	err |= __get_user(*peax, &sc->eax);
+	err |= __get_user(*peax, &sc->ax);
 	return err;
 
 badframe:
@@ -256,20 +256,20 @@ setup_sigcontext(struct sigcontext __user *sc, struct _fpstate __user *fpstate,
 
 	err |= __put_user(regs->es, (unsigned int __user *)&sc->es);
 	err |= __put_user(regs->ds, (unsigned int __user *)&sc->ds);
-	err |= __put_user(regs->di, &sc->edi);
-	err |= __put_user(regs->si, &sc->esi);
-	err |= __put_user(regs->bp, &sc->ebp);
-	err |= __put_user(regs->sp, &sc->esp);
-	err |= __put_user(regs->bx, &sc->ebx);
-	err |= __put_user(regs->dx, &sc->edx);
-	err |= __put_user(regs->cx, &sc->ecx);
-	err |= __put_user(regs->ax, &sc->eax);
+	err |= __put_user(regs->di, &sc->di);
+	err |= __put_user(regs->si, &sc->si);
+	err |= __put_user(regs->bp, &sc->bp);
+	err |= __put_user(regs->sp, &sc->sp);
+	err |= __put_user(regs->bx, &sc->bx);
+	err |= __put_user(regs->dx, &sc->dx);
+	err |= __put_user(regs->cx, &sc->cx);
+	err |= __put_user(regs->ax, &sc->ax);
 	err |= __put_user(current->thread.trap_no, &sc->trapno);
 	err |= __put_user(current->thread.error_code, &sc->err);
-	err |= __put_user(regs->ip, &sc->eip);
+	err |= __put_user(regs->ip, &sc->ip);
 	err |= __put_user(regs->cs, (unsigned int __user *)&sc->cs);
-	err |= __put_user(regs->flags, &sc->eflags);
-	err |= __put_user(regs->sp, &sc->esp_at_signal);
+	err |= __put_user(regs->flags, &sc->flags);
+	err |= __put_user(regs->sp, &sc->sp_at_signal);
 	err |= __put_user(regs->ss, (unsigned int __user *)&sc->ss);
 
 	tmp = save_i387(fpstate);
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index 4b228fd83b31..1c9bca56fb55 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -62,11 +62,10 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, unsigned
 	/* Always make any pending restarted system calls return -EINTR */
 	current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
-#define COPYR(x)	err |= __get_user(regs->x, &sc->r ## x)
 #define COPY(x)		err |= __get_user(regs->x, &sc->x)
 
-	COPYR(di); COPYR(si); COPYR(bp); COPYR(sp); COPYR(bx);
-	COPYR(dx); COPYR(cx); COPYR(ip);
+	COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx);
+	COPY(dx); COPY(cx); COPY(ip);
 	COPY(r8);
 	COPY(r9);
 	COPY(r10);
@@ -87,7 +86,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, unsigned
 
 	{
 		unsigned int tmpflags;
-		err |= __get_user(tmpflags, &sc->eflags);
+		err |= __get_user(tmpflags, &sc->flags);
 		regs->flags = (regs->flags & ~0x40DD5) | (tmpflags & 0x40DD5);
 		regs->orig_ax = -1;		/* disable syscall checks */
 	}
@@ -109,7 +108,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, unsigned
 		}
 	}
 
-	err |= __get_user(*prax, &sc->rax);
+	err |= __get_user(*prax, &sc->ax);
 	return err;
 
 badframe:
@@ -166,14 +165,14 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned lo
 	err |= __put_user(0, &sc->gs);
 	err |= __put_user(0, &sc->fs);
 
-	err |= __put_user(regs->di, &sc->rdi);
-	err |= __put_user(regs->si, &sc->rsi);
-	err |= __put_user(regs->bp, &sc->rbp);
-	err |= __put_user(regs->sp, &sc->rsp);
-	err |= __put_user(regs->bx, &sc->rbx);
-	err |= __put_user(regs->dx, &sc->rdx);
-	err |= __put_user(regs->cx, &sc->rcx);
-	err |= __put_user(regs->ax, &sc->rax);
+	err |= __put_user(regs->di, &sc->di);
+	err |= __put_user(regs->si, &sc->si);
+	err |= __put_user(regs->bp, &sc->bp);
+	err |= __put_user(regs->sp, &sc->sp);
+	err |= __put_user(regs->bx, &sc->bx);
+	err |= __put_user(regs->dx, &sc->dx);
+	err |= __put_user(regs->cx, &sc->cx);
+	err |= __put_user(regs->ax, &sc->ax);
 	err |= __put_user(regs->r8, &sc->r8);
 	err |= __put_user(regs->r9, &sc->r9);
 	err |= __put_user(regs->r10, &sc->r10);
@@ -184,8 +183,8 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned lo
 	err |= __put_user(regs->r15, &sc->r15);
 	err |= __put_user(me->thread.trap_no, &sc->trapno);
 	err |= __put_user(me->thread.error_code, &sc->err);
-	err |= __put_user(regs->ip, &sc->rip);
-	err |= __put_user(regs->flags, &sc->eflags);
+	err |= __put_user(regs->ip, &sc->ip);
+	err |= __put_user(regs->flags, &sc->flags);
 	err |= __put_user(mask, &sc->oldmask);
 	err |= __put_user(me->thread.cr2, &sc->cr2);
 
diff --git a/arch/x86/vdso/vdso32/sigreturn.S b/arch/x86/vdso/vdso32/sigreturn.S
index cade2752928b..31776d0efc8c 100644
--- a/arch/x86/vdso/vdso32/sigreturn.S
+++ b/arch/x86/vdso/vdso32/sigreturn.S
@@ -92,27 +92,27 @@ __kernel_rt_sigreturn:
 	.sleb128 offset;		/*       offset */		\
 1:
 
-	do_cfa_expr(IA32_SIGCONTEXT_esp+4)
-	do_expr(0, IA32_SIGCONTEXT_eax+4)
-	do_expr(1, IA32_SIGCONTEXT_ecx+4)
-	do_expr(2, IA32_SIGCONTEXT_edx+4)
-	do_expr(3, IA32_SIGCONTEXT_ebx+4)
-	do_expr(5, IA32_SIGCONTEXT_ebp+4)
-	do_expr(6, IA32_SIGCONTEXT_esi+4)
-	do_expr(7, IA32_SIGCONTEXT_edi+4)
-	do_expr(8, IA32_SIGCONTEXT_eip+4)
+	do_cfa_expr(IA32_SIGCONTEXT_sp+4)
+	do_expr(0, IA32_SIGCONTEXT_ax+4)
+	do_expr(1, IA32_SIGCONTEXT_cx+4)
+	do_expr(2, IA32_SIGCONTEXT_dx+4)
+	do_expr(3, IA32_SIGCONTEXT_bx+4)
+	do_expr(5, IA32_SIGCONTEXT_bp+4)
+	do_expr(6, IA32_SIGCONTEXT_si+4)
+	do_expr(7, IA32_SIGCONTEXT_di+4)
+	do_expr(8, IA32_SIGCONTEXT_ip+4)
 
 	.byte 0x42	/* DW_CFA_advance_loc 2 -- nop; popl eax. */
 
-	do_cfa_expr(IA32_SIGCONTEXT_esp)
-	do_expr(0, IA32_SIGCONTEXT_eax)
-	do_expr(1, IA32_SIGCONTEXT_ecx)
-	do_expr(2, IA32_SIGCONTEXT_edx)
-	do_expr(3, IA32_SIGCONTEXT_ebx)
-	do_expr(5, IA32_SIGCONTEXT_ebp)
-	do_expr(6, IA32_SIGCONTEXT_esi)
-	do_expr(7, IA32_SIGCONTEXT_edi)
-	do_expr(8, IA32_SIGCONTEXT_eip)
+	do_cfa_expr(IA32_SIGCONTEXT_sp)
+	do_expr(0, IA32_SIGCONTEXT_ax)
+	do_expr(1, IA32_SIGCONTEXT_cx)
+	do_expr(2, IA32_SIGCONTEXT_dx)
+	do_expr(3, IA32_SIGCONTEXT_bx)
+	do_expr(5, IA32_SIGCONTEXT_bp)
+	do_expr(6, IA32_SIGCONTEXT_si)
+	do_expr(7, IA32_SIGCONTEXT_di)
+	do_expr(8, IA32_SIGCONTEXT_ip)
 
 	.align 4
 .LENDFDEDLSI1:
@@ -129,15 +129,15 @@ __kernel_rt_sigreturn:
 	   slightly less complicated than the above, since we don't
 	   modify the stack pointer in the process.  */
 
-	do_cfa_expr(IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_esp)
-	do_expr(0, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_eax)
-	do_expr(1, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ecx)
-	do_expr(2, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_edx)
-	do_expr(3, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ebx)
-	do_expr(5, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ebp)
-	do_expr(6, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_esi)
-	do_expr(7, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_edi)
-	do_expr(8, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_eip)
+	do_cfa_expr(IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_sp)
+	do_expr(0, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ax)
+	do_expr(1, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_cx)
+	do_expr(2, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_dx)
+	do_expr(3, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_bx)
+	do_expr(5, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_bp)
+	do_expr(6, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_si)
+	do_expr(7, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_di)
+	do_expr(8, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ip)
 
 	.align 4
 .LENDFDEDLSI2:
diff --git a/include/asm-x86/sigcontext.h b/include/asm-x86/sigcontext.h
index c047f9dc3423..681deade5f00 100644
--- a/include/asm-x86/sigcontext.h
+++ b/include/asm-x86/sigcontext.h
@@ -63,20 +63,20 @@ struct sigcontext {
 	unsigned short fs, __fsh;
 	unsigned short es, __esh;
 	unsigned short ds, __dsh;
-	unsigned long edi;
-	unsigned long esi;
-	unsigned long ebp;
-	unsigned long esp;
-	unsigned long ebx;
-	unsigned long edx;
-	unsigned long ecx;
-	unsigned long eax;
+	unsigned long di;
+	unsigned long si;
+	unsigned long bp;
+	unsigned long sp;
+	unsigned long bx;
+	unsigned long dx;
+	unsigned long cx;
+	unsigned long ax;
 	unsigned long trapno;
 	unsigned long err;
-	unsigned long eip;
+	unsigned long ip;
 	unsigned short cs, __csh;
-	unsigned long eflags;
-	unsigned long esp_at_signal;
+	unsigned long flags;
+	unsigned long sp_at_signal;
 	unsigned short ss, __ssh;
 	struct _fpstate __user * fpstate;
 	unsigned long oldmask;
@@ -111,16 +111,16 @@ struct sigcontext {
 	unsigned long r13;
 	unsigned long r14;
 	unsigned long r15;
-	unsigned long rdi;
-	unsigned long rsi;
-	unsigned long rbp;
-	unsigned long rbx;
-	unsigned long rdx;
-	unsigned long rax;
-	unsigned long rcx;
-	unsigned long rsp;
-	unsigned long rip;
-	unsigned long eflags;		/* RFLAGS */
+	unsigned long di;
+	unsigned long si;
+	unsigned long bp;
+	unsigned long bx;
+	unsigned long dx;
+	unsigned long ax;
+	unsigned long cx;
+	unsigned long sp;
+	unsigned long ip;
+	unsigned long flags;
 	unsigned short cs;
 	unsigned short gs;
 	unsigned short fs;
diff --git a/include/asm-x86/sigcontext32.h b/include/asm-x86/sigcontext32.h
index 3d657038ab7c..6ffab4fd593a 100644
--- a/include/asm-x86/sigcontext32.h
+++ b/include/asm-x86/sigcontext32.h
@@ -48,20 +48,20 @@ struct sigcontext_ia32 {
        unsigned short fs, __fsh;
        unsigned short es, __esh;
        unsigned short ds, __dsh;
-       unsigned int edi;
-       unsigned int esi;
-       unsigned int ebp;
-       unsigned int esp;
-       unsigned int ebx;
-       unsigned int edx;
-       unsigned int ecx;
-       unsigned int eax;
+       unsigned int di;
+       unsigned int si;
+       unsigned int bp;
+       unsigned int sp;
+       unsigned int bx;
+       unsigned int dx;
+       unsigned int cx;
+       unsigned int ax;
        unsigned int trapno;
        unsigned int err;
-       unsigned int eip;
+       unsigned int ip;
        unsigned short cs, __csh;
-       unsigned int eflags;
-       unsigned int esp_at_signal;
+       unsigned int flags;
+       unsigned int sp_at_signal;
        unsigned short ss, __ssh;
        unsigned int fpstate;		/* really (struct _fpstate_ia32 *) */
        unsigned int oldmask;
-- 
cgit v1.2.3-59-g8ed1b


From a46ff73d53f011de1dfc1983b05db2c04d193713 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:57 +0100
Subject: x86: setup64 eflags constants

This cleans up arch/x86/kernel/setup64.c to use the X86_EFLAGS_* constants
from <asm/processor-flags.h> instead of the EF_* enum in <asm/ptrace.h>.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup64.c b/arch/x86/kernel/setup64.c
index 3558ac78c926..51297cca6b42 100644
--- a/arch/x86/kernel/setup64.c
+++ b/arch/x86/kernel/setup64.c
@@ -169,7 +169,8 @@ void syscall_init(void)
 #endif
 
 	/* Flags to clear on syscall */
-	wrmsrl(MSR_SYSCALL_MASK, EF_TF|EF_DF|EF_IE|0x3000); 
+	wrmsrl(MSR_SYSCALL_MASK,
+	       X86_EFLAGS_TF|X86_EFLAGS_DF|X86_EFLAGS_IF|X86_EFLAGS_IOPL);
 }
 
 void __cpuinit check_efer(void)
-- 
cgit v1.2.3-59-g8ed1b


From ff14c6164bd532a6dc9025c07d3b562f839f00a9 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:57 +0100
Subject: x86: x86-64 ia32 ptrace pt_regs cleanup

This cleans up the getreg32/putreg32 functions to use struct pt_regs in a
straightforward fashion, instead of equivalent ugly pointer arithmetic.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ptrace32.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ptrace32.c b/arch/x86/ia32/ptrace32.c
index 1e382e3bd882..c52d0664c67f 100644
--- a/arch/x86/ia32/ptrace32.c
+++ b/arch/x86/ia32/ptrace32.c
@@ -37,11 +37,11 @@
 
 #define R32(l,q)							\
 	case offsetof(struct user32, regs.l):				\
-		stack[offsetof(struct pt_regs, q) / 8] = val; break
+		regs->q = val; break;
 
 static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 {
-	__u64 *stack = (__u64 *)task_pt_regs(child);
+	struct pt_regs *regs = task_pt_regs(child);
 
 	switch (regno) {
 	case offsetof(struct user32, regs.fs):
@@ -65,12 +65,12 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 	case offsetof(struct user32, regs.ss):
 		if ((val & 3) != 3)
 			return -EIO;
-		stack[offsetof(struct pt_regs, ss)/8] = val & 0xffff;
+		regs->ss = val & 0xffff;
 		break;
 	case offsetof(struct user32, regs.cs):
 		if ((val & 3) != 3)
 			return -EIO;
-		stack[offsetof(struct pt_regs, cs)/8] = val & 0xffff;
+		regs->cs = val & 0xffff;
 		break;
 
 	R32(ebx, bx);
@@ -84,9 +84,7 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 	R32(eip, ip);
 	R32(esp, sp);
 
-	case offsetof(struct user32, regs.eflags): {
-		__u64 *flags = &stack[offsetof(struct pt_regs, flags)/8];
-
+	case offsetof(struct user32, regs.eflags):
 		val &= FLAG_MASK;
 		/*
 		 * If the user value contains TF, mark that
@@ -97,9 +95,8 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 			clear_tsk_thread_flag(child, TIF_FORCED_TF);
 		else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
 			val |= X86_EFLAGS_TF;
-		*flags = val | (*flags & ~FLAG_MASK);
+		regs->flags = val | (regs->flags & ~FLAG_MASK);
 		break;
-	}
 
 	case offsetof(struct user32, u_debugreg[0]) ...
 		offsetof(struct user32, u_debugreg[7]):
@@ -123,11 +120,11 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 
 #define R32(l,q)							\
 	case offsetof(struct user32, regs.l):				\
-		*val = stack[offsetof(struct pt_regs, q)/8]; break
+		*val = regs->q; break
 
 static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 {
-	__u64 *stack = (__u64 *)task_pt_regs(child);
+	struct pt_regs *regs = task_pt_regs(child);
 
 	switch (regno) {
 	case offsetof(struct user32, regs.fs):
@@ -160,7 +157,7 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 		/*
 		 * If the debugger set TF, hide it from the readout.
 		 */
-		*val = stack[offsetof(struct pt_regs, flags)/8];
+		*val = regs->flags;
 		if (test_tsk_thread_flag(child, TIF_FORCED_TF))
 			*val &= ~X86_EFLAGS_TF;
 		break;
-- 
cgit v1.2.3-59-g8ed1b


From 80976c0867b7537d77511492d3180b8093b0ba3d Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:58 +0100
Subject: x86: x86-64 ptrace whitespace

This canonicalizes the indentation in the getreg and putreg functions.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_64.c | 224 ++++++++++++++++++++++----------------------
 1 file changed, 112 insertions(+), 112 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index 56b31cd3b865..2427548f2a01 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -2,7 +2,7 @@
 /*
  * Pentium III FXSR, SSE support
  *	Gareth Hughes <gareth@valinux.com>, May 2000
- * 
+ *
  * x86-64 port 2000-2002 Andi Kleen
  */
 
@@ -48,7 +48,7 @@
  * Make sure the single step bit is not set.
  */
 void ptrace_disable(struct task_struct *child)
-{ 
+{
 	user_disable_single_step(child);
 }
 
@@ -63,69 +63,69 @@ static int putreg(struct task_struct *child,
 {
 	struct pt_regs *regs = task_pt_regs(child);
 	switch (regno) {
-		case offsetof(struct user_regs_struct,fs):
-			if (value && (value & 3) != 3)
-				return -EIO;
-			child->thread.fsindex = value & 0xffff; 
-			return 0;
-		case offsetof(struct user_regs_struct,gs):
-			if (value && (value & 3) != 3)
-				return -EIO;
-			child->thread.gsindex = value & 0xffff;
-			return 0;
-		case offsetof(struct user_regs_struct,ds):
-			if (value && (value & 3) != 3)
-				return -EIO;
-			child->thread.ds = value & 0xffff;
-			return 0;
-		case offsetof(struct user_regs_struct,es): 
-			if (value && (value & 3) != 3)
-				return -EIO;
-			child->thread.es = value & 0xffff;
-			return 0;
-		case offsetof(struct user_regs_struct,ss):
-			if ((value & 3) != 3)
-				return -EIO;
-			value &= 0xffff;
-			return 0;
-		case offsetof(struct user_regs_struct,fs_base):
-			if (value >= TASK_SIZE_OF(child))
-				return -EIO;
-			/*
-			 * When changing the segment base, use do_arch_prctl
-			 * to set either thread.fs or thread.fsindex and the
-			 * corresponding GDT slot.
-			 */
-			if (child->thread.fs != value)
-				return do_arch_prctl(child, ARCH_SET_FS, value);
-			return 0;
-		case offsetof(struct user_regs_struct,gs_base):
-			/*
-			 * Exactly the same here as the %fs handling above.
-			 */
-			if (value >= TASK_SIZE_OF(child))
-				return -EIO;
-			if (child->thread.gs != value)
-				return do_arch_prctl(child, ARCH_SET_GS, value);
-			return 0;
-		case offsetof(struct user_regs_struct,flags):
-			value &= FLAG_MASK;
-			/*
-			 * If the user value contains TF, mark that
-			 * it was not "us" (the debugger) that set it.
-			 * If not, make sure it stays set if we had.
-			 */
-			if (value & X86_EFLAGS_TF)
-				clear_tsk_thread_flag(child, TIF_FORCED_TF);
-			else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
-				value |= X86_EFLAGS_TF;
-			value |= regs->flags & ~FLAG_MASK;
-			break;
-		case offsetof(struct user_regs_struct,cs): 
-			if ((value & 3) != 3)
-				return -EIO;
-			value &= 0xffff;
-			break;
+	case offsetof(struct user_regs_struct,fs):
+		if (value && (value & 3) != 3)
+			return -EIO;
+		child->thread.fsindex = value & 0xffff;
+		return 0;
+	case offsetof(struct user_regs_struct,gs):
+		if (value && (value & 3) != 3)
+			return -EIO;
+		child->thread.gsindex = value & 0xffff;
+		return 0;
+	case offsetof(struct user_regs_struct,ds):
+		if (value && (value & 3) != 3)
+			return -EIO;
+		child->thread.ds = value & 0xffff;
+		return 0;
+	case offsetof(struct user_regs_struct,es):
+		if (value && (value & 3) != 3)
+			return -EIO;
+		child->thread.es = value & 0xffff;
+		return 0;
+	case offsetof(struct user_regs_struct,ss):
+		if ((value & 3) != 3)
+			return -EIO;
+		value &= 0xffff;
+		return 0;
+	case offsetof(struct user_regs_struct,fs_base):
+		if (value >= TASK_SIZE_OF(child))
+			return -EIO;
+		/*
+		 * When changing the segment base, use do_arch_prctl
+		 * to set either thread.fs or thread.fsindex and the
+		 * corresponding GDT slot.
+		 */
+		if (child->thread.fs != value)
+			return do_arch_prctl(child, ARCH_SET_FS, value);
+		return 0;
+	case offsetof(struct user_regs_struct,gs_base):
+		/*
+		 * Exactly the same here as the %fs handling above.
+		 */
+		if (value >= TASK_SIZE_OF(child))
+			return -EIO;
+		if (child->thread.gs != value)
+			return do_arch_prctl(child, ARCH_SET_GS, value);
+		return 0;
+	case offsetof(struct user_regs_struct,flags):
+		value &= FLAG_MASK;
+		/*
+		 * If the user value contains TF, mark that
+		 * it was not "us" (the debugger) that set it.
+		 * If not, make sure it stays set if we had.
+		 */
+		if (value & X86_EFLAGS_TF)
+			clear_tsk_thread_flag(child, TIF_FORCED_TF);
+		else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
+			value |= X86_EFLAGS_TF;
+		value |= regs->flags & ~FLAG_MASK;
+		break;
+	case offsetof(struct user_regs_struct,cs):
+		if ((value & 3) != 3)
+			return -EIO;
+		value &= 0xffff;
+		break;
 	}
 	*pt_regs_access(regs, regno) = value;
 	return 0;
@@ -136,49 +136,49 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 	struct pt_regs *regs = task_pt_regs(child);
 	unsigned long val;
 	switch (regno) {
-		case offsetof(struct user_regs_struct, fs):
-			return child->thread.fsindex;
-		case offsetof(struct user_regs_struct, gs):
-			return child->thread.gsindex;
-		case offsetof(struct user_regs_struct, ds):
-			return child->thread.ds;
-		case offsetof(struct user_regs_struct, es):
-			return child->thread.es; 
-		case offsetof(struct user_regs_struct, fs_base):
-			/*
-			 * do_arch_prctl may have used a GDT slot instead of
-			 * the MSR.  To userland, it appears the same either
-			 * way, except the %fs segment selector might not be 0.
-			 */
-			if (child->thread.fs != 0)
-				return child->thread.fs;
-			if (child->thread.fsindex != FS_TLS_SEL)
-				return 0;
-			return get_desc_base(&child->thread.tls_array[FS_TLS]);
-		case offsetof(struct user_regs_struct, gs_base):
-			/*
-			 * Exactly the same here as the %fs handling above.
-			 */
-			if (child->thread.gs != 0)
-				return child->thread.gs;
-			if (child->thread.gsindex != GS_TLS_SEL)
-				return 0;
-			return get_desc_base(&child->thread.tls_array[GS_TLS]);
-		case offsetof(struct user_regs_struct, flags):
-			/*
-			 * If the debugger set TF, hide it from the readout.
-			 */
-			val = regs->flags;
-			if (test_tsk_thread_flag(child, TIF_IA32))
-				val &= 0xffffffff;
-			if (test_tsk_thread_flag(child, TIF_FORCED_TF))
-				val &= ~X86_EFLAGS_TF;
-			return val;
-		default:
-			val = *pt_regs_access(regs, regno);
-			if (test_tsk_thread_flag(child, TIF_IA32))
-				val &= 0xffffffff;
-			return val;
+	case offsetof(struct user_regs_struct, fs):
+		return child->thread.fsindex;
+	case offsetof(struct user_regs_struct, gs):
+		return child->thread.gsindex;
+	case offsetof(struct user_regs_struct, ds):
+		return child->thread.ds;
+	case offsetof(struct user_regs_struct, es):
+		return child->thread.es;
+	case offsetof(struct user_regs_struct, fs_base):
+		/*
+		 * do_arch_prctl may have used a GDT slot instead of
+		 * the MSR.  To userland, it appears the same either
+		 * way, except the %fs segment selector might not be 0.
+		 */
+		if (child->thread.fs != 0)
+			return child->thread.fs;
+		if (child->thread.fsindex != FS_TLS_SEL)
+			return 0;
+		return get_desc_base(&child->thread.tls_array[FS_TLS]);
+	case offsetof(struct user_regs_struct, gs_base):
+		/*
+		 * Exactly the same here as the %fs handling above.
+		 */
+		if (child->thread.gs != 0)
+			return child->thread.gs;
+		if (child->thread.gsindex != GS_TLS_SEL)
+			return 0;
+		return get_desc_base(&child->thread.tls_array[GS_TLS]);
+	case offsetof(struct user_regs_struct, flags):
+		/*
+		 * If the debugger set TF, hide it from the readout.
+		 */
+		val = regs->flags;
+		if (test_tsk_thread_flag(child, TIF_IA32))
+			val &= 0xffffffff;
+		if (test_tsk_thread_flag(child, TIF_FORCED_TF))
+			val &= ~X86_EFLAGS_TF;
+		return val;
+	default:
+		val = *pt_regs_access(regs, regno);
+		if (test_tsk_thread_flag(child, TIF_IA32))
+			val &= 0xffffffff;
+		return val;
 	}
 
 }
@@ -244,7 +244,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 	switch (request) {
 	/* when I and D space are separate, these will need to be fixed. */
-	case PTRACE_PEEKTEXT: /* read word at location addr. */ 
+	case PTRACE_PEEKTEXT: /* read word at location addr. */
 	case PTRACE_PEEKDATA:
 		ret = generic_ptrace_peekdata(child, addr, data);
 		break;
@@ -310,10 +310,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 					 (struct user_desc __user *) data, 0);
 		break;
 #endif
-		/* normal 64bit interface to access TLS data. 
+		/* normal 64bit interface to access TLS data.
 		   Works just like arch_prctl, except that the arguments
 		   are reversed. */
-	case PTRACE_ARCH_PRCTL: 
+	case PTRACE_ARCH_PRCTL:
 		ret = do_arch_prctl(child, data, addr);
 		break;
 
@@ -386,7 +386,7 @@ static void syscall_trace(struct pt_regs *regs)
 	printk("trace %s ip %lx sp %lx ax %d origrax %d caller %lx tiflags %x ptrace %x\n",
 	       current->comm,
 	       regs->ip, regs->sp, regs->ax, regs->orig_ax, __builtin_return_address(0),
-	       current_thread_info()->flags, current->ptrace); 
+	       current_thread_info()->flags, current->ptrace);
 #endif
 
 	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-- 
cgit v1.2.3-59-g8ed1b


From 9e714bed644cb463489b9250774a4b0fb352cabc Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:58 +0100
Subject: x86: x86-32 ptrace whitespace

This canonicalizes the indentation in the getreg and putreg functions.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_32.c | 110 ++++++++++++++++++++++----------------------
 1 file changed, 55 insertions(+), 55 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index f81e2f1827d4..5aca84ef26d5 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -51,37 +51,37 @@ static int putreg(struct task_struct *child,
 	struct pt_regs *regs = task_pt_regs(child);
 	regno >>= 2;
 	switch (regno) {
-		case GS:
-			if (value && (value & 3) != 3)
-				return -EIO;
-			child->thread.gs = value;
-			return 0;
-		case DS:
-		case ES:
-		case FS:
-			if (value && (value & 3) != 3)
-				return -EIO;
-			value &= 0xffff;
-			break;
-		case SS:
-		case CS:
-			if ((value & 3) != 3)
-				return -EIO;
-			value &= 0xffff;
-			break;
-		case EFL:
-			value &= FLAG_MASK;
-			/*
-			 * If the user value contains TF, mark that
-			 * it was not "us" (the debugger) that set it.
-			 * If not, make sure it stays set if we had.
-			 */
-			if (value & X86_EFLAGS_TF)
-				clear_tsk_thread_flag(child, TIF_FORCED_TF);
-			else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
-				value |= X86_EFLAGS_TF;
-			value |= regs->flags & ~FLAG_MASK;
-			break;
+	case GS:
+		if (value && (value & 3) != 3)
+			return -EIO;
+		child->thread.gs = value;
+		return 0;
+	case DS:
+	case ES:
+	case FS:
+		if (value && (value & 3) != 3)
+			return -EIO;
+		value &= 0xffff;
+		break;
+	case SS:
+	case CS:
+		if ((value & 3) != 3)
+			return -EIO;
+		value &= 0xffff;
+		break;
+	case EFL:
+		value &= FLAG_MASK;
+		/*
+		 * If the user value contains TF, mark that
+		 * it was not "us" (the debugger) that set it.
+		 * If not, make sure it stays set if we had.
+		 */
+		if (value & X86_EFLAGS_TF)
+			clear_tsk_thread_flag(child, TIF_FORCED_TF);
+		else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
+			value |= X86_EFLAGS_TF;
+		value |= regs->flags & ~FLAG_MASK;
+		break;
 	}
 	*pt_regs_access(regs, regno) = value;
 	return 0;
@@ -94,26 +94,26 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 
 	regno >>= 2;
 	switch (regno) {
-		case EFL:
-			/*
-			 * If the debugger set TF, hide it from the readout.
-			 */
-			retval = regs->flags;
-			if (test_tsk_thread_flag(child, TIF_FORCED_TF))
-				retval &= ~X86_EFLAGS_TF;
-			break;
-		case GS:
-			retval = child->thread.gs;
-			break;
-		case DS:
-		case ES:
-		case FS:
-		case SS:
-		case CS:
-			retval = 0xffff;
-			/* fall through */
-		default:
-			retval &= *pt_regs_access(regs, regno);
+	case EFL:
+		/*
+		 * If the debugger set TF, hide it from the readout.
+		 */
+		retval = regs->flags;
+		if (test_tsk_thread_flag(child, TIF_FORCED_TF))
+			retval &= ~X86_EFLAGS_TF;
+		break;
+	case GS:
+		retval = child->thread.gs;
+		break;
+	case DS:
+	case ES:
+	case FS:
+	case SS:
+	case CS:
+		retval = 0xffff;
+		/* fall through */
+	default:
+		retval &= *pt_regs_access(regs, regno);
 	}
 	return retval;
 }
@@ -190,7 +190,7 @@ static int ptrace_set_debugreg(struct task_struct *child,
  * Make sure the single step bit is not set.
  */
 void ptrace_disable(struct task_struct *child)
-{ 
+{
 	user_disable_single_step(child);
 	clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
 }
@@ -203,7 +203,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 	switch (request) {
 	/* when I and D space are separate, these will need to be fixed. */
-	case PTRACE_PEEKTEXT: /* read word at location addr. */ 
+	case PTRACE_PEEKTEXT: /* read word at location addr. */
 	case PTRACE_PEEKDATA:
 		ret = generic_ptrace_peekdata(child, addr, data);
 		break;
@@ -213,7 +213,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		unsigned long tmp;
 
 		ret = -EIO;
-		if ((addr & 3) || addr < 0 || 
+		if ((addr & 3) || addr < 0 ||
 		    addr > sizeof(struct user) - 3)
 			break;
 
@@ -238,7 +238,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 	case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
 		ret = -EIO;
-		if ((addr & 3) || addr < 0 || 
+		if ((addr & 3) || addr < 0 ||
 		    addr > sizeof(struct user) - 3)
 			break;
 
-- 
cgit v1.2.3-59-g8ed1b


From ce90f340855d7a9b3bec24f0fe49a76904242387 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:58 +0100
Subject: x86: x86-64 ptrace get/putreg current task

This generalizes the getreg and putreg functions so they can be used on the
current task, as well as on a task stopped in TASK_TRACED and switched off.
This lays the groundwork to share this code for all kinds of user-mode
machine state access, not just ptrace.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_64.c | 36 ++++++++++++++++++++++++++++++++++--
 1 file changed, 34 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index 2427548f2a01..5979dbe8e0a2 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -67,21 +67,29 @@ static int putreg(struct task_struct *child,
 		if (value && (value & 3) != 3)
 			return -EIO;
 		child->thread.fsindex = value & 0xffff;
+		if (child == current)
+			loadsegment(fs, child->thread.fsindex);
 		return 0;
 	case offsetof(struct user_regs_struct,gs):
 		if (value && (value & 3) != 3)
 			return -EIO;
 		child->thread.gsindex = value & 0xffff;
+		if (child == current)
+			load_gs_index(child->thread.gsindex);
 		return 0;
 	case offsetof(struct user_regs_struct,ds):
 		if (value && (value & 3) != 3)
 			return -EIO;
 		child->thread.ds = value & 0xffff;
+		if (child == current)
+			loadsegment(ds, child->thread.ds);
 		return 0;
 	case offsetof(struct user_regs_struct,es):
 		if (value && (value & 3) != 3)
 			return -EIO;
 		child->thread.es = value & 0xffff;
+		if (child == current)
+			loadsegment(es, child->thread.es);
 		return 0;
 	case offsetof(struct user_regs_struct,ss):
 		if ((value & 3) != 3)
@@ -135,14 +143,32 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 {
 	struct pt_regs *regs = task_pt_regs(child);
 	unsigned long val;
+	unsigned int seg;
 	switch (regno) {
 	case offsetof(struct user_regs_struct, fs):
+		if (child == current) {
+			/* Older gas can't assemble movq %?s,%r?? */
+			asm("movl %%fs,%0" : "=r" (seg));
+			return seg;
+		}
 		return child->thread.fsindex;
 	case offsetof(struct user_regs_struct, gs):
+		if (child == current) {
+			asm("movl %%gs,%0" : "=r" (seg));
+			return seg;
+		}
 		return child->thread.gsindex;
 	case offsetof(struct user_regs_struct, ds):
+		if (child == current) {
+			asm("movl %%ds,%0" : "=r" (seg));
+			return seg;
+		}
 		return child->thread.ds;
 	case offsetof(struct user_regs_struct, es):
+		if (child == current) {
+			asm("movl %%es,%0" : "=r" (seg));
+			return seg;
+		}
 		return child->thread.es;
 	case offsetof(struct user_regs_struct, fs_base):
 		/*
@@ -152,7 +178,10 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 		 */
 		if (child->thread.fs != 0)
 			return child->thread.fs;
-		if (child->thread.fsindex != FS_TLS_SEL)
+		seg = child->thread.fsindex;
+		if (child == current)
+			asm("movl %%fs,%0" : "=r" (seg));
+		if (seg != FS_TLS_SEL)
 			return 0;
 		return get_desc_base(&child->thread.tls_array[FS_TLS]);
 	case offsetof(struct user_regs_struct, gs_base):
@@ -161,7 +190,10 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 		 */
 		if (child->thread.gs != 0)
 			return child->thread.gs;
-		if (child->thread.gsindex != GS_TLS_SEL)
+		seg = child->thread.gsindex;
+		if (child == current)
+			asm("movl %%gs,%0" : "=r" (seg));
+		if (seg != GS_TLS_SEL)
 			return 0;
 		return get_desc_base(&child->thread.tls_array[GS_TLS]);
 	case offsetof(struct user_regs_struct, flags):
-- 
cgit v1.2.3-59-g8ed1b


From 5fd4d16bd59a9fc84ca94c4fce4abc23fe219108 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:58 +0100
Subject: x86: x86-32 ptrace get/putreg current task

This generalizes the getreg and putreg functions so they can be used on the
current task, as well as on a task stopped in TASK_TRACED and switched off.
This lays the groundwork to share this code for all kinds of user-mode
machine state access, not just ptrace.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace_32.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index 5aca84ef26d5..26071305de2c 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -55,6 +55,12 @@ static int putreg(struct task_struct *child,
 		if (value && (value & 3) != 3)
 			return -EIO;
 		child->thread.gs = value;
+		if (child == current)
+			/*
+			 * The user-mode %gs is not affected by
+			 * kernel entry, so we must update the CPU.
+			 */
+			loadsegment(gs, value);
 		return 0;
 	case DS:
 	case ES:
@@ -104,6 +110,8 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
 		break;
 	case GS:
 		retval = child->thread.gs;
+		if (child == current)
+			savesegment(gs, retval);
 		break;
 	case DS:
 	case ES:
-- 
cgit v1.2.3-59-g8ed1b


From d277fb89dfb042deba04a8e765718cc8b3825e85 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:58 +0100
Subject: x86: x86-64 ia32 ptrace get/putreg32 current task

This generalizes the getreg32 and putreg32 functions so they can be used on
the current task, as well as on a task stopped in TASK_TRACED and switched
off.  This lays the groundwork to share this code for all kinds of
user-mode machine state access, not just ptrace.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ptrace32.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/ia32/ptrace32.c b/arch/x86/ia32/ptrace32.c
index c52d0664c67f..d5663e295330 100644
--- a/arch/x86/ia32/ptrace32.c
+++ b/arch/x86/ia32/ptrace32.c
@@ -48,19 +48,27 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 		if (val && (val & 3) != 3)
 			return -EIO;
 		child->thread.fsindex = val & 0xffff;
+		if (child == current)
+			loadsegment(fs, child->thread.fsindex);
 		break;
 	case offsetof(struct user32, regs.gs):
 		if (val && (val & 3) != 3)
 			return -EIO;
 		child->thread.gsindex = val & 0xffff;
+		if (child == current)
+			load_gs_index(child->thread.gsindex);
 		break;
 	case offsetof(struct user32, regs.ds):
 		if (val && (val & 3) != 3)
 			return -EIO;
 		child->thread.ds = val & 0xffff;
+		if (child == current)
+			loadsegment(ds, child->thread.ds);
 		break;
 	case offsetof(struct user32, regs.es):
 		child->thread.es = val & 0xffff;
+		if (child == current)
+			loadsegment(es, child->thread.ds);
 		break;
 	case offsetof(struct user32, regs.ss):
 		if ((val & 3) != 3)
@@ -129,15 +137,23 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 	switch (regno) {
 	case offsetof(struct user32, regs.fs):
 		*val = child->thread.fsindex;
+		if (child == current)
+			asm("movl %%fs,%0" : "=r" (*val));
 		break;
 	case offsetof(struct user32, regs.gs):
 		*val = child->thread.gsindex;
+		if (child == current)
+			asm("movl %%gs,%0" : "=r" (*val));
 		break;
 	case offsetof(struct user32, regs.ds):
 		*val = child->thread.ds;
+		if (child == current)
+			asm("movl %%ds,%0" : "=r" (*val));
 		break;
 	case offsetof(struct user32, regs.es):
 		*val = child->thread.es;
+		if (child == current)
+			asm("movl %%es,%0" : "=r" (*val));
 		break;
 
 	R32(cs, cs);
-- 
cgit v1.2.3-59-g8ed1b


From 0f5340933f9bacb403f49baaf8073320e3984841 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:30:59 +0100
Subject: x86: x86-32 thread_struct.debugreg

This replaces the debugreg[7] member of thread_struct with individual
members debugreg0, etc.  This saves two words for the dummies 4 and 5,
and harmonizes the code between 32 and 64.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_32.c   | 31 ++++++++++++++++++++-----------
 arch/x86/kernel/ptrace_32.c    | 29 ++++++++++++++++++++++++-----
 arch/x86/kernel/signal_32.c    |  4 ++--
 arch/x86/kernel/traps_32.c     |  4 ++--
 arch/x86/power/cpu.c           | 14 +++++++-------
 include/asm-x86/processor_32.h |  7 ++++++-
 6 files changed, 61 insertions(+), 28 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 53406461074f..3744cf63682c 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -445,7 +445,12 @@ void flush_thread(void)
 {
 	struct task_struct *tsk = current;
 
-	memset(tsk->thread.debugreg, 0, sizeof(unsigned long)*8);
+	tsk->thread.debugreg0 = 0;
+	tsk->thread.debugreg1 = 0;
+	tsk->thread.debugreg2 = 0;
+	tsk->thread.debugreg3 = 0;
+	tsk->thread.debugreg6 = 0;
+	tsk->thread.debugreg7 = 0;
 	memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array));	
 	clear_tsk_thread_flag(tsk, TIF_DEBUG);
 	/*
@@ -522,7 +527,6 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
  */
 void dump_thread(struct pt_regs * regs, struct user * dump)
 {
-	int i;
 	u16 gs;
 
 /* changed the size calculations - should hopefully work better. lbt */
@@ -533,8 +537,14 @@ void dump_thread(struct pt_regs * regs, struct user * dump)
 	dump->u_dsize = ((unsigned long) (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
 	dump->u_dsize -= dump->u_tsize;
 	dump->u_ssize = 0;
-	for (i = 0; i < 8; i++)
-		dump->u_debugreg[i] = current->thread.debugreg[i];  
+	dump->u_debugreg[0] = current->thread.debugreg0;
+	dump->u_debugreg[1] = current->thread.debugreg1;
+	dump->u_debugreg[2] = current->thread.debugreg2;
+	dump->u_debugreg[3] = current->thread.debugreg3;
+	dump->u_debugreg[4] = 0;
+	dump->u_debugreg[5] = 0;
+	dump->u_debugreg[6] = current->thread.debugreg6;
+	dump->u_debugreg[7] = current->thread.debugreg7;
 
 	if (dump->start_stack < TASK_SIZE)
 		dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
@@ -612,13 +622,13 @@ __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
 		wrmsr(MSR_IA32_DEBUGCTLMSR, next->debugctlmsr, 0);
 
 	if (test_tsk_thread_flag(next_p, TIF_DEBUG)) {
-		set_debugreg(next->debugreg[0], 0);
-		set_debugreg(next->debugreg[1], 1);
-		set_debugreg(next->debugreg[2], 2);
-		set_debugreg(next->debugreg[3], 3);
+		set_debugreg(next->debugreg0, 0);
+		set_debugreg(next->debugreg1, 1);
+		set_debugreg(next->debugreg2, 2);
+		set_debugreg(next->debugreg3, 3);
 		/* no 4 and 5 */
-		set_debugreg(next->debugreg[6], 6);
-		set_debugreg(next->debugreg[7], 7);
+		set_debugreg(next->debugreg6, 6);
+		set_debugreg(next->debugreg7, 7);
 	}
 
 #ifdef CONFIG_SECCOMP
@@ -869,4 +879,3 @@ unsigned long arch_randomize_brk(struct mm_struct *mm)
 	unsigned long range_end = mm->brk + 0x02000000;
 	return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
 }
-
diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index 26071305de2c..fed83d066135 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -133,19 +133,39 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
  */
 static unsigned long ptrace_get_debugreg(struct task_struct *child, int n)
 {
-	return child->thread.debugreg[n];
+	switch (n) {
+	case 0:		return child->thread.debugreg0;
+	case 1:		return child->thread.debugreg1;
+	case 2:		return child->thread.debugreg2;
+	case 3:		return child->thread.debugreg3;
+	case 6:		return child->thread.debugreg6;
+	case 7:		return child->thread.debugreg7;
+	}
+	return 0;
 }
 
 static int ptrace_set_debugreg(struct task_struct *child,
 			       int n, unsigned long data)
 {
+	int i;
+
 	if (unlikely(n == 4 || n == 5))
 		return -EIO;
 
 	if (n < 4 && unlikely(data >= TASK_SIZE - 3))
 		return -EIO;
 
-	if (n == 7) {
+	switch (n) {
+	case 0:		child->thread.debugreg0 = data; break;
+	case 1:		child->thread.debugreg1 = data; break;
+	case 2:		child->thread.debugreg2 = data; break;
+	case 3:		child->thread.debugreg3 = data; break;
+
+	case 6:
+		child->thread.debugreg6 = data;
+		break;
+
+	case 7:
 		/*
 		 * Sanity-check data. Take one half-byte at once with
 		 * check = (val >> (16 + 4*i)) & 0xf. It contains the
@@ -176,19 +196,18 @@ static int ptrace_set_debugreg(struct task_struct *child,
 		 * 64-bit kernel), so the x86_64 mask value is 0x5454.
 		 * See the AMD manual no. 24593 (AMD64 System Programming)
 		 */
-		int i;
 		data &= ~DR_CONTROL_RESERVED;
 		for (i = 0; i < 4; i++)
 			if ((0x5f54 >> ((data >> (16 + 4*i)) & 0xf)) & 1)
 				return -EIO;
+		child->thread.debugreg7 = data;
 		if (data)
 			set_tsk_thread_flag(child, TIF_DEBUG);
 		else
 			clear_tsk_thread_flag(child, TIF_DEBUG);
+		break;
 	}
 
-	child->thread.debugreg[n] = data;
-
 	return 0;
 }
 
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 64cb3c05de69..2bf5c9aed106 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -605,8 +605,8 @@ static void fastcall do_signal(struct pt_regs *regs)
 		 * have been cleared if the watchpoint triggered
 		 * inside the kernel.
 		 */
-		if (unlikely(current->thread.debugreg[7]))
-			set_debugreg(current->thread.debugreg[7], 7);
+		if (unlikely(current->thread.debugreg7))
+			set_debugreg(current->thread.debugreg7, 7);
 
 		/* Whee!  Actually deliver the signal.  */
 		if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 931ef10960ee..27713553cc59 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -852,7 +852,7 @@ fastcall void __kprobes do_debug(struct pt_regs * regs, long error_code)
 
 	/* Mask out spurious debug traps due to lazy DR7 setting */
 	if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3)) {
-		if (!tsk->thread.debugreg[7])
+		if (!tsk->thread.debugreg7)
 			goto clear_dr7;
 	}
 
@@ -860,7 +860,7 @@ fastcall void __kprobes do_debug(struct pt_regs * regs, long error_code)
 		goto debug_vm86;
 
 	/* Save debug status register where ptrace can see it */
-	tsk->thread.debugreg[6] = condition;
+	tsk->thread.debugreg6 = condition;
 
 	/*
 	 * Single-stepping through TF: make sure we ignore any events in
diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
index 998fd3ec0d68..5a98dc35addf 100644
--- a/arch/x86/power/cpu.c
+++ b/arch/x86/power/cpu.c
@@ -74,14 +74,14 @@ static void fix_processor_context(void)
 	/*
 	 * Now maybe reload the debug registers
 	 */
-	if (current->thread.debugreg[7]){
-		set_debugreg(current->thread.debugreg[0], 0);
-		set_debugreg(current->thread.debugreg[1], 1);
-		set_debugreg(current->thread.debugreg[2], 2);
-		set_debugreg(current->thread.debugreg[3], 3);
+	if (current->thread.debugreg7) {
+		set_debugreg(current->thread.debugreg0, 0);
+		set_debugreg(current->thread.debugreg1, 1);
+		set_debugreg(current->thread.debugreg2, 2);
+		set_debugreg(current->thread.debugreg3, 3);
 		/* no 4 and 5 */
-		set_debugreg(current->thread.debugreg[6], 6);
-		set_debugreg(current->thread.debugreg[7], 7);
+		set_debugreg(current->thread.debugreg6, 6);
+		set_debugreg(current->thread.debugreg7, 7);
 	}
 
 }
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index c85400fe58c4..d50a4b48d441 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -353,7 +353,12 @@ struct thread_struct {
 	unsigned long	fs;
 	unsigned long	gs;
 /* Hardware debugging registers */
-	unsigned long	debugreg[8];  /* %%db0-7 debug registers */
+	unsigned long	debugreg0;
+	unsigned long	debugreg1;
+	unsigned long	debugreg2;
+	unsigned long	debugreg3;
+	unsigned long	debugreg6;
+	unsigned long	debugreg7;
 /* fault info */
 	unsigned long	cr2, trap_no, error_code;
 /* floating point info */
-- 
cgit v1.2.3-59-g8ed1b


From d52e9d690fff1fd9d0ccffe375fd01b700f82a64 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:01 +0100
Subject: x86: ptrace_32 renamed

This renames ptrace_32.c back to ptrace.c, in preparation
for merging the 32/64 versions of these files.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile_32 |   3 +-
 arch/x86/kernel/ptrace.c    | 484 ++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/ptrace_32.c | 484 --------------------------------------------
 3 files changed, 486 insertions(+), 485 deletions(-)
 create mode 100644 arch/x86/kernel/ptrace.c
 delete mode 100644 arch/x86/kernel/ptrace_32.c

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index 20e23c4c18b6..b2d7aea4c82d 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -6,10 +6,11 @@ extra-y := head_32.o init_task.o vmlinux.lds
 CPPFLAGS_vmlinux.lds += -Ui386
 
 obj-y	:= process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
-		ptrace_32.o time_32.o ioport_32.o ldt.o setup_32.o i8259_32.o sys_i386_32.o \
+		time_32.o ioport_32.o ldt.o setup_32.o i8259_32.o sys_i386_32.o \
 		pci-dma_32.o i386_ksyms_32.o i387_32.o bootflag.o e820_32.o\
 		quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o io_delay.o rtc.o
 
+obj-y				+= ptrace.o
 obj-y				+= tls.o
 obj-y				+= step.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
new file mode 100644
index 000000000000..fed83d066135
--- /dev/null
+++ b/arch/x86/kernel/ptrace.c
@@ -0,0 +1,484 @@
+/* By Ross Biro 1/23/92 */
+/*
+ * Pentium III FXSR, SSE support
+ *	Gareth Hughes <gareth@valinux.com>, May 2000
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/security.h>
+#include <linux/audit.h>
+#include <linux/seccomp.h>
+#include <linux/signal.h>
+
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/processor.h>
+#include <asm/i387.h>
+#include <asm/debugreg.h>
+#include <asm/ldt.h>
+#include <asm/desc.h>
+
+/*
+ * does not yet catch signals sent when the child dies.
+ * in exit.c or in signal.c.
+ */
+
+/*
+ * Determines which flags the user has access to [1 = access, 0 = no access].
+ * Prohibits changing ID(21), VIP(20), VIF(19), VM(17), NT(14), IOPL(12-13), IF(9).
+ * Also masks reserved bits (31-22, 15, 5, 3, 1).
+ */
+#define FLAG_MASK 0x00050dd5
+
+static long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
+{
+	BUILD_BUG_ON(offsetof(struct pt_regs, bx) != 0);
+	if (regno > FS)
+		--regno;
+	return &regs->bx + regno;
+}
+
+static int putreg(struct task_struct *child,
+	unsigned long regno, unsigned long value)
+{
+	struct pt_regs *regs = task_pt_regs(child);
+	regno >>= 2;
+	switch (regno) {
+	case GS:
+		if (value && (value & 3) != 3)
+			return -EIO;
+		child->thread.gs = value;
+		if (child == current)
+			/*
+			 * The user-mode %gs is not affected by
+			 * kernel entry, so we must update the CPU.
+			 */
+			loadsegment(gs, value);
+		return 0;
+	case DS:
+	case ES:
+	case FS:
+		if (value && (value & 3) != 3)
+			return -EIO;
+		value &= 0xffff;
+		break;
+	case SS:
+	case CS:
+		if ((value & 3) != 3)
+			return -EIO;
+		value &= 0xffff;
+		break;
+	case EFL:
+		value &= FLAG_MASK;
+		/*
+		 * If the user value contains TF, mark that
+		 * it was not "us" (the debugger) that set it.
+		 * If not, make sure it stays set if we had.
+		 */
+		if (value & X86_EFLAGS_TF)
+			clear_tsk_thread_flag(child, TIF_FORCED_TF);
+		else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
+			value |= X86_EFLAGS_TF;
+		value |= regs->flags & ~FLAG_MASK;
+		break;
+	}
+	*pt_regs_access(regs, regno) = value;
+	return 0;
+}
+
+static unsigned long getreg(struct task_struct *child, unsigned long regno)
+{
+	struct pt_regs *regs = task_pt_regs(child);
+	unsigned long retval = ~0UL;
+
+	regno >>= 2;
+	switch (regno) {
+	case EFL:
+		/*
+		 * If the debugger set TF, hide it from the readout.
+		 */
+		retval = regs->flags;
+		if (test_tsk_thread_flag(child, TIF_FORCED_TF))
+			retval &= ~X86_EFLAGS_TF;
+		break;
+	case GS:
+		retval = child->thread.gs;
+		if (child == current)
+			savesegment(gs, retval);
+		break;
+	case DS:
+	case ES:
+	case FS:
+	case SS:
+	case CS:
+		retval = 0xffff;
+		/* fall through */
+	default:
+		retval &= *pt_regs_access(regs, regno);
+	}
+	return retval;
+}
+
+/*
+ * This function is trivial and will be inlined by the compiler.
+ * Having it separates the implementation details of debug
+ * registers from the interface details of ptrace.
+ */
+static unsigned long ptrace_get_debugreg(struct task_struct *child, int n)
+{
+	switch (n) {
+	case 0:		return child->thread.debugreg0;
+	case 1:		return child->thread.debugreg1;
+	case 2:		return child->thread.debugreg2;
+	case 3:		return child->thread.debugreg3;
+	case 6:		return child->thread.debugreg6;
+	case 7:		return child->thread.debugreg7;
+	}
+	return 0;
+}
+
+static int ptrace_set_debugreg(struct task_struct *child,
+			       int n, unsigned long data)
+{
+	int i;
+
+	if (unlikely(n == 4 || n == 5))
+		return -EIO;
+
+	if (n < 4 && unlikely(data >= TASK_SIZE - 3))
+		return -EIO;
+
+	switch (n) {
+	case 0:		child->thread.debugreg0 = data; break;
+	case 1:		child->thread.debugreg1 = data; break;
+	case 2:		child->thread.debugreg2 = data; break;
+	case 3:		child->thread.debugreg3 = data; break;
+
+	case 6:
+		child->thread.debugreg6 = data;
+		break;
+
+	case 7:
+		/*
+		 * Sanity-check data. Take one half-byte at once with
+		 * check = (val >> (16 + 4*i)) & 0xf. It contains the
+		 * R/Wi and LENi bits; bits 0 and 1 are R/Wi, and bits
+		 * 2 and 3 are LENi. Given a list of invalid values,
+		 * we do mask |= 1 << invalid_value, so that
+		 * (mask >> check) & 1 is a correct test for invalid
+		 * values.
+		 *
+		 * R/Wi contains the type of the breakpoint /
+		 * watchpoint, LENi contains the length of the watched
+		 * data in the watchpoint case.
+		 *
+		 * The invalid values are:
+		 * - LENi == 0x10 (undefined), so mask |= 0x0f00.
+		 * - R/Wi == 0x10 (break on I/O reads or writes), so
+		 *   mask |= 0x4444.
+		 * - R/Wi == 0x00 && LENi != 0x00, so we have mask |=
+		 *   0x1110.
+		 *
+		 * Finally, mask = 0x0f00 | 0x4444 | 0x1110 == 0x5f54.
+		 *
+		 * See the Intel Manual "System Programming Guide",
+		 * 15.2.4
+		 *
+		 * Note that LENi == 0x10 is defined on x86_64 in long
+		 * mode (i.e. even for 32-bit userspace software, but
+		 * 64-bit kernel), so the x86_64 mask value is 0x5454.
+		 * See the AMD manual no. 24593 (AMD64 System Programming)
+		 */
+		data &= ~DR_CONTROL_RESERVED;
+		for (i = 0; i < 4; i++)
+			if ((0x5f54 >> ((data >> (16 + 4*i)) & 0xf)) & 1)
+				return -EIO;
+		child->thread.debugreg7 = data;
+		if (data)
+			set_tsk_thread_flag(child, TIF_DEBUG);
+		else
+			clear_tsk_thread_flag(child, TIF_DEBUG);
+		break;
+	}
+
+	return 0;
+}
+
+/*
+ * Called by kernel/ptrace.c when detaching..
+ *
+ * Make sure the single step bit is not set.
+ */
+void ptrace_disable(struct task_struct *child)
+{
+	user_disable_single_step(child);
+	clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
+}
+
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+{
+	struct user * dummy = NULL;
+	int i, ret;
+	unsigned long __user *datap = (unsigned long __user *)data;
+
+	switch (request) {
+	/* when I and D space are separate, these will need to be fixed. */
+	case PTRACE_PEEKTEXT: /* read word at location addr. */
+	case PTRACE_PEEKDATA:
+		ret = generic_ptrace_peekdata(child, addr, data);
+		break;
+
+	/* read the word at location addr in the USER area. */
+	case PTRACE_PEEKUSR: {
+		unsigned long tmp;
+
+		ret = -EIO;
+		if ((addr & 3) || addr < 0 ||
+		    addr > sizeof(struct user) - 3)
+			break;
+
+		tmp = 0;  /* Default return condition */
+		if(addr < FRAME_SIZE*sizeof(long))
+			tmp = getreg(child, addr);
+		if(addr >= (long) &dummy->u_debugreg[0] &&
+		   addr <= (long) &dummy->u_debugreg[7]){
+			addr -= (long) &dummy->u_debugreg[0];
+			addr = addr >> 2;
+			tmp = ptrace_get_debugreg(child, addr);
+		}
+		ret = put_user(tmp, datap);
+		break;
+	}
+
+	/* when I and D space are separate, this will have to be fixed. */
+	case PTRACE_POKETEXT: /* write the word at location addr. */
+	case PTRACE_POKEDATA:
+		ret = generic_ptrace_pokedata(child, addr, data);
+		break;
+
+	case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
+		ret = -EIO;
+		if ((addr & 3) || addr < 0 ||
+		    addr > sizeof(struct user) - 3)
+			break;
+
+		if (addr < FRAME_SIZE*sizeof(long)) {
+			ret = putreg(child, addr, data);
+			break;
+		}
+		/* We need to be very careful here.  We implicitly
+		   want to modify a portion of the task_struct, and we
+		   have to be selective about what portions we allow someone
+		   to modify. */
+
+		  ret = -EIO;
+		  if(addr >= (long) &dummy->u_debugreg[0] &&
+		     addr <= (long) &dummy->u_debugreg[7]){
+			  addr -= (long) &dummy->u_debugreg;
+			  addr = addr >> 2;
+			  ret = ptrace_set_debugreg(child, addr, data);
+		  }
+		  break;
+
+	case PTRACE_GETREGS: { /* Get all gp regs from the child. */
+	  	if (!access_ok(VERIFY_WRITE, datap, FRAME_SIZE*sizeof(long))) {
+			ret = -EIO;
+			break;
+		}
+		for ( i = 0; i < FRAME_SIZE*sizeof(long); i += sizeof(long) ) {
+			__put_user(getreg(child, i), datap);
+			datap++;
+		}
+		ret = 0;
+		break;
+	}
+
+	case PTRACE_SETREGS: { /* Set all gp regs in the child. */
+		unsigned long tmp;
+	  	if (!access_ok(VERIFY_READ, datap, FRAME_SIZE*sizeof(long))) {
+			ret = -EIO;
+			break;
+		}
+		for ( i = 0; i < FRAME_SIZE*sizeof(long); i += sizeof(long) ) {
+			__get_user(tmp, datap);
+			putreg(child, i, tmp);
+			datap++;
+		}
+		ret = 0;
+		break;
+	}
+
+	case PTRACE_GETFPREGS: { /* Get the child FPU state. */
+		if (!access_ok(VERIFY_WRITE, datap,
+			       sizeof(struct user_i387_struct))) {
+			ret = -EIO;
+			break;
+		}
+		ret = 0;
+		if (!tsk_used_math(child))
+			init_fpu(child);
+		get_fpregs((struct user_i387_struct __user *)data, child);
+		break;
+	}
+
+	case PTRACE_SETFPREGS: { /* Set the child FPU state. */
+		if (!access_ok(VERIFY_READ, datap,
+			       sizeof(struct user_i387_struct))) {
+			ret = -EIO;
+			break;
+		}
+		set_stopped_child_used_math(child);
+		set_fpregs(child, (struct user_i387_struct __user *)data);
+		ret = 0;
+		break;
+	}
+
+	case PTRACE_GETFPXREGS: { /* Get the child extended FPU state. */
+		if (!access_ok(VERIFY_WRITE, datap,
+			       sizeof(struct user_fxsr_struct))) {
+			ret = -EIO;
+			break;
+		}
+		if (!tsk_used_math(child))
+			init_fpu(child);
+		ret = get_fpxregs((struct user_fxsr_struct __user *)data, child);
+		break;
+	}
+
+	case PTRACE_SETFPXREGS: { /* Set the child extended FPU state. */
+		if (!access_ok(VERIFY_READ, datap,
+			       sizeof(struct user_fxsr_struct))) {
+			ret = -EIO;
+			break;
+		}
+		set_stopped_child_used_math(child);
+		ret = set_fpxregs(child, (struct user_fxsr_struct __user *)data);
+		break;
+	}
+
+	case PTRACE_GET_THREAD_AREA:
+		if (addr < 0)
+			return -EIO;
+		ret = do_get_thread_area(child, addr,
+					 (struct user_desc __user *) data);
+		break;
+
+	case PTRACE_SET_THREAD_AREA:
+		if (addr < 0)
+			return -EIO;
+		ret = do_set_thread_area(child, addr,
+					 (struct user_desc __user *) data, 0);
+		break;
+
+	default:
+		ret = ptrace_request(child, request, addr, data);
+		break;
+	}
+
+	return ret;
+}
+
+void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code)
+{
+	struct siginfo info;
+
+	tsk->thread.trap_no = 1;
+	tsk->thread.error_code = error_code;
+
+	memset(&info, 0, sizeof(info));
+	info.si_signo = SIGTRAP;
+	info.si_code = TRAP_BRKPT;
+
+	/* User-mode ip? */
+	info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL;
+
+	/* Send us the fake SIGTRAP */
+	force_sig_info(SIGTRAP, &info, tsk);
+}
+
+/* notification of system call entry/exit
+ * - triggered by current->work.syscall_trace
+ */
+__attribute__((regparm(3)))
+int do_syscall_trace(struct pt_regs *regs, int entryexit)
+{
+	int is_sysemu = test_thread_flag(TIF_SYSCALL_EMU);
+	/*
+	 * With TIF_SYSCALL_EMU set we want to ignore TIF_SINGLESTEP for syscall
+	 * interception
+	 */
+	int is_singlestep = !is_sysemu && test_thread_flag(TIF_SINGLESTEP);
+	int ret = 0;
+
+	/* do the secure computing check first */
+	if (!entryexit)
+		secure_computing(regs->orig_ax);
+
+	if (unlikely(current->audit_context)) {
+		if (entryexit)
+			audit_syscall_exit(AUDITSC_RESULT(regs->ax),
+						regs->ax);
+		/* Debug traps, when using PTRACE_SINGLESTEP, must be sent only
+		 * on the syscall exit path. Normally, when TIF_SYSCALL_AUDIT is
+		 * not used, entry.S will call us only on syscall exit, not
+		 * entry; so when TIF_SYSCALL_AUDIT is used we must avoid
+		 * calling send_sigtrap() on syscall entry.
+		 *
+		 * Note that when PTRACE_SYSEMU_SINGLESTEP is used,
+		 * is_singlestep is false, despite his name, so we will still do
+		 * the correct thing.
+		 */
+		else if (is_singlestep)
+			goto out;
+	}
+
+	if (!(current->ptrace & PT_PTRACED))
+		goto out;
+
+	/* If a process stops on the 1st tracepoint with SYSCALL_TRACE
+	 * and then is resumed with SYSEMU_SINGLESTEP, it will come in
+	 * here. We have to check this and return */
+	if (is_sysemu && entryexit)
+		return 0;
+
+	/* Fake a debug trap */
+	if (is_singlestep)
+		send_sigtrap(current, regs, 0);
+
+ 	if (!test_thread_flag(TIF_SYSCALL_TRACE) && !is_sysemu)
+		goto out;
+
+	/* the 0x80 provides a way for the tracing parent to distinguish
+	   between a syscall stop and SIGTRAP delivery */
+	/* Note that the debugger could change the result of test_thread_flag!*/
+	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ? 0x80:0));
+
+	/*
+	 * this isn't the same as continuing with a signal, but it will do
+	 * for normal use.  strace only continues with a signal if the
+	 * stopping signal is not SIGTRAP.  -brl
+	 */
+	if (current->exit_code) {
+		send_sig(current->exit_code, current, 1);
+		current->exit_code = 0;
+	}
+	ret = is_sysemu;
+out:
+	if (unlikely(current->audit_context) && !entryexit)
+		audit_syscall_entry(AUDIT_ARCH_I386, regs->orig_ax,
+				    regs->bx, regs->cx, regs->dx, regs->si);
+	if (ret == 0)
+		return 0;
+
+	regs->orig_ax = -1; /* force skip of syscall restarting */
+	if (unlikely(current->audit_context))
+		audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax);
+	return 1;
+}
diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
deleted file mode 100644
index fed83d066135..000000000000
--- a/arch/x86/kernel/ptrace_32.c
+++ /dev/null
@@ -1,484 +0,0 @@
-/* By Ross Biro 1/23/92 */
-/*
- * Pentium III FXSR, SSE support
- *	Gareth Hughes <gareth@valinux.com>, May 2000
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/security.h>
-#include <linux/audit.h>
-#include <linux/seccomp.h>
-#include <linux/signal.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/i387.h>
-#include <asm/debugreg.h>
-#include <asm/ldt.h>
-#include <asm/desc.h>
-
-/*
- * does not yet catch signals sent when the child dies.
- * in exit.c or in signal.c.
- */
-
-/*
- * Determines which flags the user has access to [1 = access, 0 = no access].
- * Prohibits changing ID(21), VIP(20), VIF(19), VM(17), NT(14), IOPL(12-13), IF(9).
- * Also masks reserved bits (31-22, 15, 5, 3, 1).
- */
-#define FLAG_MASK 0x00050dd5
-
-static long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
-{
-	BUILD_BUG_ON(offsetof(struct pt_regs, bx) != 0);
-	if (regno > FS)
-		--regno;
-	return &regs->bx + regno;
-}
-
-static int putreg(struct task_struct *child,
-	unsigned long regno, unsigned long value)
-{
-	struct pt_regs *regs = task_pt_regs(child);
-	regno >>= 2;
-	switch (regno) {
-	case GS:
-		if (value && (value & 3) != 3)
-			return -EIO;
-		child->thread.gs = value;
-		if (child == current)
-			/*
-			 * The user-mode %gs is not affected by
-			 * kernel entry, so we must update the CPU.
-			 */
-			loadsegment(gs, value);
-		return 0;
-	case DS:
-	case ES:
-	case FS:
-		if (value && (value & 3) != 3)
-			return -EIO;
-		value &= 0xffff;
-		break;
-	case SS:
-	case CS:
-		if ((value & 3) != 3)
-			return -EIO;
-		value &= 0xffff;
-		break;
-	case EFL:
-		value &= FLAG_MASK;
-		/*
-		 * If the user value contains TF, mark that
-		 * it was not "us" (the debugger) that set it.
-		 * If not, make sure it stays set if we had.
-		 */
-		if (value & X86_EFLAGS_TF)
-			clear_tsk_thread_flag(child, TIF_FORCED_TF);
-		else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
-			value |= X86_EFLAGS_TF;
-		value |= regs->flags & ~FLAG_MASK;
-		break;
-	}
-	*pt_regs_access(regs, regno) = value;
-	return 0;
-}
-
-static unsigned long getreg(struct task_struct *child, unsigned long regno)
-{
-	struct pt_regs *regs = task_pt_regs(child);
-	unsigned long retval = ~0UL;
-
-	regno >>= 2;
-	switch (regno) {
-	case EFL:
-		/*
-		 * If the debugger set TF, hide it from the readout.
-		 */
-		retval = regs->flags;
-		if (test_tsk_thread_flag(child, TIF_FORCED_TF))
-			retval &= ~X86_EFLAGS_TF;
-		break;
-	case GS:
-		retval = child->thread.gs;
-		if (child == current)
-			savesegment(gs, retval);
-		break;
-	case DS:
-	case ES:
-	case FS:
-	case SS:
-	case CS:
-		retval = 0xffff;
-		/* fall through */
-	default:
-		retval &= *pt_regs_access(regs, regno);
-	}
-	return retval;
-}
-
-/*
- * This function is trivial and will be inlined by the compiler.
- * Having it separates the implementation details of debug
- * registers from the interface details of ptrace.
- */
-static unsigned long ptrace_get_debugreg(struct task_struct *child, int n)
-{
-	switch (n) {
-	case 0:		return child->thread.debugreg0;
-	case 1:		return child->thread.debugreg1;
-	case 2:		return child->thread.debugreg2;
-	case 3:		return child->thread.debugreg3;
-	case 6:		return child->thread.debugreg6;
-	case 7:		return child->thread.debugreg7;
-	}
-	return 0;
-}
-
-static int ptrace_set_debugreg(struct task_struct *child,
-			       int n, unsigned long data)
-{
-	int i;
-
-	if (unlikely(n == 4 || n == 5))
-		return -EIO;
-
-	if (n < 4 && unlikely(data >= TASK_SIZE - 3))
-		return -EIO;
-
-	switch (n) {
-	case 0:		child->thread.debugreg0 = data; break;
-	case 1:		child->thread.debugreg1 = data; break;
-	case 2:		child->thread.debugreg2 = data; break;
-	case 3:		child->thread.debugreg3 = data; break;
-
-	case 6:
-		child->thread.debugreg6 = data;
-		break;
-
-	case 7:
-		/*
-		 * Sanity-check data. Take one half-byte at once with
-		 * check = (val >> (16 + 4*i)) & 0xf. It contains the
-		 * R/Wi and LENi bits; bits 0 and 1 are R/Wi, and bits
-		 * 2 and 3 are LENi. Given a list of invalid values,
-		 * we do mask |= 1 << invalid_value, so that
-		 * (mask >> check) & 1 is a correct test for invalid
-		 * values.
-		 *
-		 * R/Wi contains the type of the breakpoint /
-		 * watchpoint, LENi contains the length of the watched
-		 * data in the watchpoint case.
-		 *
-		 * The invalid values are:
-		 * - LENi == 0x10 (undefined), so mask |= 0x0f00.
-		 * - R/Wi == 0x10 (break on I/O reads or writes), so
-		 *   mask |= 0x4444.
-		 * - R/Wi == 0x00 && LENi != 0x00, so we have mask |=
-		 *   0x1110.
-		 *
-		 * Finally, mask = 0x0f00 | 0x4444 | 0x1110 == 0x5f54.
-		 *
-		 * See the Intel Manual "System Programming Guide",
-		 * 15.2.4
-		 *
-		 * Note that LENi == 0x10 is defined on x86_64 in long
-		 * mode (i.e. even for 32-bit userspace software, but
-		 * 64-bit kernel), so the x86_64 mask value is 0x5454.
-		 * See the AMD manual no. 24593 (AMD64 System Programming)
-		 */
-		data &= ~DR_CONTROL_RESERVED;
-		for (i = 0; i < 4; i++)
-			if ((0x5f54 >> ((data >> (16 + 4*i)) & 0xf)) & 1)
-				return -EIO;
-		child->thread.debugreg7 = data;
-		if (data)
-			set_tsk_thread_flag(child, TIF_DEBUG);
-		else
-			clear_tsk_thread_flag(child, TIF_DEBUG);
-		break;
-	}
-
-	return 0;
-}
-
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure the single step bit is not set.
- */
-void ptrace_disable(struct task_struct *child)
-{
-	user_disable_single_step(child);
-	clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
-}
-
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
-{
-	struct user * dummy = NULL;
-	int i, ret;
-	unsigned long __user *datap = (unsigned long __user *)data;
-
-	switch (request) {
-	/* when I and D space are separate, these will need to be fixed. */
-	case PTRACE_PEEKTEXT: /* read word at location addr. */
-	case PTRACE_PEEKDATA:
-		ret = generic_ptrace_peekdata(child, addr, data);
-		break;
-
-	/* read the word at location addr in the USER area. */
-	case PTRACE_PEEKUSR: {
-		unsigned long tmp;
-
-		ret = -EIO;
-		if ((addr & 3) || addr < 0 ||
-		    addr > sizeof(struct user) - 3)
-			break;
-
-		tmp = 0;  /* Default return condition */
-		if(addr < FRAME_SIZE*sizeof(long))
-			tmp = getreg(child, addr);
-		if(addr >= (long) &dummy->u_debugreg[0] &&
-		   addr <= (long) &dummy->u_debugreg[7]){
-			addr -= (long) &dummy->u_debugreg[0];
-			addr = addr >> 2;
-			tmp = ptrace_get_debugreg(child, addr);
-		}
-		ret = put_user(tmp, datap);
-		break;
-	}
-
-	/* when I and D space are separate, this will have to be fixed. */
-	case PTRACE_POKETEXT: /* write the word at location addr. */
-	case PTRACE_POKEDATA:
-		ret = generic_ptrace_pokedata(child, addr, data);
-		break;
-
-	case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
-		ret = -EIO;
-		if ((addr & 3) || addr < 0 ||
-		    addr > sizeof(struct user) - 3)
-			break;
-
-		if (addr < FRAME_SIZE*sizeof(long)) {
-			ret = putreg(child, addr, data);
-			break;
-		}
-		/* We need to be very careful here.  We implicitly
-		   want to modify a portion of the task_struct, and we
-		   have to be selective about what portions we allow someone
-		   to modify. */
-
-		  ret = -EIO;
-		  if(addr >= (long) &dummy->u_debugreg[0] &&
-		     addr <= (long) &dummy->u_debugreg[7]){
-			  addr -= (long) &dummy->u_debugreg;
-			  addr = addr >> 2;
-			  ret = ptrace_set_debugreg(child, addr, data);
-		  }
-		  break;
-
-	case PTRACE_GETREGS: { /* Get all gp regs from the child. */
-	  	if (!access_ok(VERIFY_WRITE, datap, FRAME_SIZE*sizeof(long))) {
-			ret = -EIO;
-			break;
-		}
-		for ( i = 0; i < FRAME_SIZE*sizeof(long); i += sizeof(long) ) {
-			__put_user(getreg(child, i), datap);
-			datap++;
-		}
-		ret = 0;
-		break;
-	}
-
-	case PTRACE_SETREGS: { /* Set all gp regs in the child. */
-		unsigned long tmp;
-	  	if (!access_ok(VERIFY_READ, datap, FRAME_SIZE*sizeof(long))) {
-			ret = -EIO;
-			break;
-		}
-		for ( i = 0; i < FRAME_SIZE*sizeof(long); i += sizeof(long) ) {
-			__get_user(tmp, datap);
-			putreg(child, i, tmp);
-			datap++;
-		}
-		ret = 0;
-		break;
-	}
-
-	case PTRACE_GETFPREGS: { /* Get the child FPU state. */
-		if (!access_ok(VERIFY_WRITE, datap,
-			       sizeof(struct user_i387_struct))) {
-			ret = -EIO;
-			break;
-		}
-		ret = 0;
-		if (!tsk_used_math(child))
-			init_fpu(child);
-		get_fpregs((struct user_i387_struct __user *)data, child);
-		break;
-	}
-
-	case PTRACE_SETFPREGS: { /* Set the child FPU state. */
-		if (!access_ok(VERIFY_READ, datap,
-			       sizeof(struct user_i387_struct))) {
-			ret = -EIO;
-			break;
-		}
-		set_stopped_child_used_math(child);
-		set_fpregs(child, (struct user_i387_struct __user *)data);
-		ret = 0;
-		break;
-	}
-
-	case PTRACE_GETFPXREGS: { /* Get the child extended FPU state. */
-		if (!access_ok(VERIFY_WRITE, datap,
-			       sizeof(struct user_fxsr_struct))) {
-			ret = -EIO;
-			break;
-		}
-		if (!tsk_used_math(child))
-			init_fpu(child);
-		ret = get_fpxregs((struct user_fxsr_struct __user *)data, child);
-		break;
-	}
-
-	case PTRACE_SETFPXREGS: { /* Set the child extended FPU state. */
-		if (!access_ok(VERIFY_READ, datap,
-			       sizeof(struct user_fxsr_struct))) {
-			ret = -EIO;
-			break;
-		}
-		set_stopped_child_used_math(child);
-		ret = set_fpxregs(child, (struct user_fxsr_struct __user *)data);
-		break;
-	}
-
-	case PTRACE_GET_THREAD_AREA:
-		if (addr < 0)
-			return -EIO;
-		ret = do_get_thread_area(child, addr,
-					 (struct user_desc __user *) data);
-		break;
-
-	case PTRACE_SET_THREAD_AREA:
-		if (addr < 0)
-			return -EIO;
-		ret = do_set_thread_area(child, addr,
-					 (struct user_desc __user *) data, 0);
-		break;
-
-	default:
-		ret = ptrace_request(child, request, addr, data);
-		break;
-	}
-
-	return ret;
-}
-
-void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code)
-{
-	struct siginfo info;
-
-	tsk->thread.trap_no = 1;
-	tsk->thread.error_code = error_code;
-
-	memset(&info, 0, sizeof(info));
-	info.si_signo = SIGTRAP;
-	info.si_code = TRAP_BRKPT;
-
-	/* User-mode ip? */
-	info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL;
-
-	/* Send us the fake SIGTRAP */
-	force_sig_info(SIGTRAP, &info, tsk);
-}
-
-/* notification of system call entry/exit
- * - triggered by current->work.syscall_trace
- */
-__attribute__((regparm(3)))
-int do_syscall_trace(struct pt_regs *regs, int entryexit)
-{
-	int is_sysemu = test_thread_flag(TIF_SYSCALL_EMU);
-	/*
-	 * With TIF_SYSCALL_EMU set we want to ignore TIF_SINGLESTEP for syscall
-	 * interception
-	 */
-	int is_singlestep = !is_sysemu && test_thread_flag(TIF_SINGLESTEP);
-	int ret = 0;
-
-	/* do the secure computing check first */
-	if (!entryexit)
-		secure_computing(regs->orig_ax);
-
-	if (unlikely(current->audit_context)) {
-		if (entryexit)
-			audit_syscall_exit(AUDITSC_RESULT(regs->ax),
-						regs->ax);
-		/* Debug traps, when using PTRACE_SINGLESTEP, must be sent only
-		 * on the syscall exit path. Normally, when TIF_SYSCALL_AUDIT is
-		 * not used, entry.S will call us only on syscall exit, not
-		 * entry; so when TIF_SYSCALL_AUDIT is used we must avoid
-		 * calling send_sigtrap() on syscall entry.
-		 *
-		 * Note that when PTRACE_SYSEMU_SINGLESTEP is used,
-		 * is_singlestep is false, despite his name, so we will still do
-		 * the correct thing.
-		 */
-		else if (is_singlestep)
-			goto out;
-	}
-
-	if (!(current->ptrace & PT_PTRACED))
-		goto out;
-
-	/* If a process stops on the 1st tracepoint with SYSCALL_TRACE
-	 * and then is resumed with SYSEMU_SINGLESTEP, it will come in
-	 * here. We have to check this and return */
-	if (is_sysemu && entryexit)
-		return 0;
-
-	/* Fake a debug trap */
-	if (is_singlestep)
-		send_sigtrap(current, regs, 0);
-
- 	if (!test_thread_flag(TIF_SYSCALL_TRACE) && !is_sysemu)
-		goto out;
-
-	/* the 0x80 provides a way for the tracing parent to distinguish
-	   between a syscall stop and SIGTRAP delivery */
-	/* Note that the debugger could change the result of test_thread_flag!*/
-	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ? 0x80:0));
-
-	/*
-	 * this isn't the same as continuing with a signal, but it will do
-	 * for normal use.  strace only continues with a signal if the
-	 * stopping signal is not SIGTRAP.  -brl
-	 */
-	if (current->exit_code) {
-		send_sig(current->exit_code, current, 1);
-		current->exit_code = 0;
-	}
-	ret = is_sysemu;
-out:
-	if (unlikely(current->audit_context) && !entryexit)
-		audit_syscall_entry(AUDIT_ARCH_I386, regs->orig_ax,
-				    regs->bx, regs->cx, regs->dx, regs->si);
-	if (ret == 0)
-		return 0;
-
-	regs->orig_ax = -1; /* force skip of syscall restarting */
-	if (unlikely(current->audit_context))
-		audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax);
-	return 1;
-}
-- 
cgit v1.2.3-59-g8ed1b


From e39c2891415b3b5c7381ece06bb45b3c7bdd4342 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:01 +0100
Subject: x86: ptrace FLAG_MASK cleanup

This cleans up the FLAG_MASK macro to use symbolic constants instead of a
magic number.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index fed83d066135..b71226d653ed 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -32,10 +32,15 @@
 
 /*
  * Determines which flags the user has access to [1 = access, 0 = no access].
- * Prohibits changing ID(21), VIP(20), VIF(19), VM(17), NT(14), IOPL(12-13), IF(9).
- * Also masks reserved bits (31-22, 15, 5, 3, 1).
  */
-#define FLAG_MASK 0x00050dd5
+#define FLAG_MASK_32		((unsigned long)			\
+				 (X86_EFLAGS_CF | X86_EFLAGS_PF |	\
+				  X86_EFLAGS_AF | X86_EFLAGS_ZF |	\
+				  X86_EFLAGS_SF | X86_EFLAGS_TF |	\
+				  X86_EFLAGS_DF | X86_EFLAGS_OF |	\
+				  X86_EFLAGS_RF | X86_EFLAGS_AC))
+
+#define FLAG_MASK		FLAG_MASK_32
 
 static long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
 {
-- 
cgit v1.2.3-59-g8ed1b


From 06ee1b687ac91698ccd47fa652d5b3cf1bfcd806 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:01 +0100
Subject: x86: x86 ptrace getreg/putreg cleanup

This cleans up the getreg/putreg functions to move the special cases
(segment registers and eflags) out into their own subroutines.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 162 ++++++++++++++++++++++++++++-------------------
 1 file changed, 96 insertions(+), 66 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index b71226d653ed..eaec75a4094b 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -45,92 +45,122 @@
 static long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
 {
 	BUILD_BUG_ON(offsetof(struct pt_regs, bx) != 0);
+	regno >>= 2;
 	if (regno > FS)
 		--regno;
 	return &regs->bx + regno;
 }
 
-static int putreg(struct task_struct *child,
-	unsigned long regno, unsigned long value)
+static u16 get_segment_reg(struct task_struct *task, unsigned long offset)
 {
-	struct pt_regs *regs = task_pt_regs(child);
-	regno >>= 2;
-	switch (regno) {
-	case GS:
-		if (value && (value & 3) != 3)
-			return -EIO;
-		child->thread.gs = value;
-		if (child == current)
+	/*
+	 * Returning the value truncates it to 16 bits.
+	 */
+	unsigned int retval;
+	if (offset != offsetof(struct user_regs_struct, gs))
+		retval = *pt_regs_access(task_pt_regs(task), offset);
+	else {
+		retval = task->thread.gs;
+		if (task == current)
+			savesegment(gs, retval);
+	}
+	return retval;
+}
+
+static int set_segment_reg(struct task_struct *task,
+			   unsigned long offset, u16 value)
+{
+	/*
+	 * The value argument was already truncated to 16 bits.
+	 */
+	if (value && (value & 3) != 3)
+		return -EIO;
+
+	if (offset != offsetof(struct user_regs_struct, gs))
+		*pt_regs_access(task_pt_regs(task), offset) = value;
+	else {
+		task->thread.gs = value;
+		if (task == current)
 			/*
 			 * The user-mode %gs is not affected by
 			 * kernel entry, so we must update the CPU.
 			 */
 			loadsegment(gs, value);
-		return 0;
-	case DS:
-	case ES:
-	case FS:
-		if (value && (value & 3) != 3)
-			return -EIO;
-		value &= 0xffff;
-		break;
-	case SS:
-	case CS:
-		if ((value & 3) != 3)
-			return -EIO;
-		value &= 0xffff;
-		break;
-	case EFL:
-		value &= FLAG_MASK;
-		/*
-		 * If the user value contains TF, mark that
-		 * it was not "us" (the debugger) that set it.
-		 * If not, make sure it stays set if we had.
-		 */
-		if (value & X86_EFLAGS_TF)
-			clear_tsk_thread_flag(child, TIF_FORCED_TF);
-		else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
-			value |= X86_EFLAGS_TF;
-		value |= regs->flags & ~FLAG_MASK;
-		break;
 	}
-	*pt_regs_access(regs, regno) = value;
+
 	return 0;
 }
 
-static unsigned long getreg(struct task_struct *child, unsigned long regno)
+static unsigned long get_flags(struct task_struct *task)
 {
-	struct pt_regs *regs = task_pt_regs(child);
-	unsigned long retval = ~0UL;
+	unsigned long retval = task_pt_regs(task)->flags;
+
+	/*
+	 * If the debugger set TF, hide it from the readout.
+	 */
+	if (test_tsk_thread_flag(task, TIF_FORCED_TF))
+		retval &= ~X86_EFLAGS_TF;
 
-	regno >>= 2;
-	switch (regno) {
-	case EFL:
-		/*
-		 * If the debugger set TF, hide it from the readout.
-		 */
-		retval = regs->flags;
-		if (test_tsk_thread_flag(child, TIF_FORCED_TF))
-			retval &= ~X86_EFLAGS_TF;
-		break;
-	case GS:
-		retval = child->thread.gs;
-		if (child == current)
-			savesegment(gs, retval);
-		break;
-	case DS:
-	case ES:
-	case FS:
-	case SS:
-	case CS:
-		retval = 0xffff;
-		/* fall through */
-	default:
-		retval &= *pt_regs_access(regs, regno);
-	}
 	return retval;
 }
 
+static int set_flags(struct task_struct *task, unsigned long value)
+{
+	struct pt_regs *regs = task_pt_regs(task);
+
+	/*
+	 * If the user value contains TF, mark that
+	 * it was not "us" (the debugger) that set it.
+	 * If not, make sure it stays set if we had.
+	 */
+	if (value & X86_EFLAGS_TF)
+		clear_tsk_thread_flag(task, TIF_FORCED_TF);
+	else if (test_tsk_thread_flag(task, TIF_FORCED_TF))
+		value |= X86_EFLAGS_TF;
+
+	regs->flags = (regs->flags & ~FLAG_MASK) | (value & FLAG_MASK);
+
+	return 0;
+}
+
+static int putreg(struct task_struct *child,
+		  unsigned long offset, unsigned long value)
+{
+	switch (offset) {
+	case offsetof(struct user_regs_struct, cs):
+	case offsetof(struct user_regs_struct, ds):
+	case offsetof(struct user_regs_struct, es):
+	case offsetof(struct user_regs_struct, fs):
+	case offsetof(struct user_regs_struct, gs):
+	case offsetof(struct user_regs_struct, ss):
+		return set_segment_reg(child, offset, value);
+
+	case offsetof(struct user_regs_struct, flags):
+		return set_flags(child, value);
+	}
+
+	*pt_regs_access(task_pt_regs(child), offset) = value;
+	return 0;
+}
+
+static unsigned long getreg(struct task_struct *task, unsigned long offset)
+{
+	switch (offset) {
+	case offsetof(struct user_regs_struct, cs):
+	case offsetof(struct user_regs_struct, ds):
+	case offsetof(struct user_regs_struct, es):
+	case offsetof(struct user_regs_struct, fs):
+	case offsetof(struct user_regs_struct, gs):
+	case offsetof(struct user_regs_struct, ss):
+		return get_segment_reg(task, offset);
+
+	case offsetof(struct user_regs_struct, flags):
+		return get_flags(task);
+	}
+
+	return *pt_regs_access(task_pt_regs(task), offset);
+}
+
 /*
  * This function is trivial and will be inlined by the compiler.
  * Having it separates the implementation details of debug
-- 
cgit v1.2.3-59-g8ed1b


From 2047b08be67b70875d8765fc81d34ce28041bec3 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:01 +0100
Subject: x86: x86 ptrace getreg/putreg merge

This merges 64-bit support into the low-level register access
functions in arch/x86/kernel/ptrace.c, paving the way to share
this file between 32-bit and 64-bit builds.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 217 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 213 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index eaec75a4094b..c709868d28a5 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -24,6 +24,8 @@
 #include <asm/debugreg.h>
 #include <asm/ldt.h>
 #include <asm/desc.h>
+#include <asm/prctl.h>
+#include <asm/proto.h>
 
 /*
  * does not yet catch signals sent when the child dies.
@@ -40,6 +42,16 @@
 				  X86_EFLAGS_DF | X86_EFLAGS_OF |	\
 				  X86_EFLAGS_RF | X86_EFLAGS_AC))
 
+/*
+ * Determines whether a value may be installed in a segment register.
+ */
+static inline bool invalid_selector(u16 value)
+{
+	return unlikely(value != 0 && (value & SEGMENT_RPL_MASK) != USER_RPL);
+}
+
+#ifdef CONFIG_X86_32
+
 #define FLAG_MASK		FLAG_MASK_32
 
 static long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
@@ -73,7 +85,7 @@ static int set_segment_reg(struct task_struct *task,
 	/*
 	 * The value argument was already truncated to 16 bits.
 	 */
-	if (value && (value & 3) != 3)
+	if (invalid_selector(value))
 		return -EIO;
 
 	if (offset != offsetof(struct user_regs_struct, gs))
@@ -91,6 +103,142 @@ static int set_segment_reg(struct task_struct *task,
 	return 0;
 }
 
+static unsigned long debugreg_addr_limit(struct task_struct *task)
+{
+	return TASK_SIZE - 3;
+}
+
+#else  /* CONFIG_X86_64 */
+
+#define FLAG_MASK		(FLAG_MASK_32 | X86_EFLAGS_NT)
+
+static unsigned long *pt_regs_access(struct pt_regs *regs, unsigned long offset)
+{
+	BUILD_BUG_ON(offsetof(struct pt_regs, r15) != 0);
+	return &regs->r15 + (offset / sizeof(regs->r15));
+}
+
+static u16 get_segment_reg(struct task_struct *task, unsigned long offset)
+{
+	/*
+	 * Returning the value truncates it to 16 bits.
+	 */
+	unsigned int seg;
+
+	switch (offset) {
+	case offsetof(struct user_regs_struct, fs):
+		if (task == current) {
+			/* Older gas can't assemble movq %?s,%r?? */
+			asm("movl %%fs,%0" : "=r" (seg));
+			return seg;
+		}
+		return task->thread.fsindex;
+	case offsetof(struct user_regs_struct, gs):
+		if (task == current) {
+			asm("movl %%gs,%0" : "=r" (seg));
+			return seg;
+		}
+		return task->thread.gsindex;
+	case offsetof(struct user_regs_struct, ds):
+		if (task == current) {
+			asm("movl %%ds,%0" : "=r" (seg));
+			return seg;
+		}
+		return task->thread.ds;
+	case offsetof(struct user_regs_struct, es):
+		if (task == current) {
+			asm("movl %%es,%0" : "=r" (seg));
+			return seg;
+		}
+		return task->thread.es;
+
+	case offsetof(struct user_regs_struct, cs):
+	case offsetof(struct user_regs_struct, ss):
+		break;
+	}
+	return *pt_regs_access(task_pt_regs(task), offset);
+}
+
+static int set_segment_reg(struct task_struct *task,
+			   unsigned long offset, u16 value)
+{
+	/*
+	 * The value argument was already truncated to 16 bits.
+	 */
+	if (invalid_selector(value))
+		return -EIO;
+
+	switch (offset) {
+	case offsetof(struct user_regs_struct,fs):
+		/*
+		 * If this is setting fs as for normal 64-bit use but
+		 * setting fs_base has implicitly changed it, leave it.
+		 */
+		if ((value == FS_TLS_SEL && task->thread.fsindex == 0 &&
+		     task->thread.fs != 0) ||
+		    (value == 0 && task->thread.fsindex == FS_TLS_SEL &&
+		     task->thread.fs == 0))
+			break;
+		task->thread.fsindex = value;
+		if (task == current)
+			loadsegment(fs, task->thread.fsindex);
+		break;
+	case offsetof(struct user_regs_struct,gs):
+		/*
+		 * If this is setting gs as for normal 64-bit use but
+		 * setting gs_base has implicitly changed it, leave it.
+		 */
+		if ((value == GS_TLS_SEL && task->thread.gsindex == 0 &&
+		     task->thread.gs != 0) ||
+		    (value == 0 && task->thread.gsindex == GS_TLS_SEL &&
+		     task->thread.gs == 0))
+			break;
+		task->thread.gsindex = value;
+		if (task == current)
+			load_gs_index(task->thread.gsindex);
+		break;
+	case offsetof(struct user_regs_struct,ds):
+		task->thread.ds = value;
+		if (task == current)
+			loadsegment(ds, task->thread.ds);
+		break;
+	case offsetof(struct user_regs_struct,es):
+		task->thread.es = value;
+		if (task == current)
+			loadsegment(es, task->thread.es);
+		break;
+
+		/*
+		 * Can't actually change these in 64-bit mode.
+		 */
+	case offsetof(struct user_regs_struct,cs):
+#ifdef CONFIG_IA32_EMULATION
+		if (test_tsk_thread_flag(task, TIF_IA32))
+			task_pt_regs(task)->cs = value;
+		break;
+#endif
+	case offsetof(struct user_regs_struct,ss):
+#ifdef CONFIG_IA32_EMULATION
+		if (test_tsk_thread_flag(task, TIF_IA32))
+			task_pt_regs(task)->ss = value;
+		break;
+#endif
+	}
+
+	return 0;
+}
+
+static unsigned long debugreg_addr_limit(struct task_struct *task)
+{
+#ifdef CONFIG_IA32_EMULATION
+	if (test_tsk_thread_flag(task, TIF_IA32))
+		return IA32_PAGE_OFFSET - 3;
+#endif
+	return TASK_SIZE64 - 7;
+}
+
+#endif	/* CONFIG_X86_32 */
+
 static unsigned long get_flags(struct task_struct *task)
 {
 	unsigned long retval = task_pt_regs(task)->flags;
@@ -137,6 +285,29 @@ static int putreg(struct task_struct *child,
 
 	case offsetof(struct user_regs_struct, flags):
 		return set_flags(child, value);
+
+#ifdef CONFIG_X86_64
+	case offsetof(struct user_regs_struct,fs_base):
+		if (value >= TASK_SIZE_OF(child))
+			return -EIO;
+		/*
+		 * When changing the segment base, use do_arch_prctl
+		 * to set either thread.fs or thread.fsindex and the
+		 * corresponding GDT slot.
+		 */
+		if (child->thread.fs != value)
+			return do_arch_prctl(child, ARCH_SET_FS, value);
+		return 0;
+	case offsetof(struct user_regs_struct,gs_base):
+		/*
+		 * Exactly the same here as the %fs handling above.
+		 */
+		if (value >= TASK_SIZE_OF(child))
+			return -EIO;
+		if (child->thread.gs != value)
+			return do_arch_prctl(child, ARCH_SET_GS, value);
+		return 0;
+#endif
 	}
 
 	*pt_regs_access(task_pt_regs(child), offset) = value;
@@ -156,6 +327,37 @@ static unsigned long getreg(struct task_struct *task, unsigned long offset)
 
 	case offsetof(struct user_regs_struct, flags):
 		return get_flags(task);
+
+#ifdef CONFIG_X86_64
+	case offsetof(struct user_regs_struct, fs_base): {
+		/*
+		 * do_arch_prctl may have used a GDT slot instead of
+		 * the MSR.  To userland, it appears the same either
+		 * way, except the %fs segment selector might not be 0.
+		 */
+		unsigned int seg = task->thread.fsindex;
+		if (task->thread.fs != 0)
+			return task->thread.fs;
+		if (task == current)
+			asm("movl %%fs,%0" : "=r" (seg));
+		if (seg != FS_TLS_SEL)
+			return 0;
+		return get_desc_base(&task->thread.tls_array[FS_TLS]);
+	}
+	case offsetof(struct user_regs_struct, gs_base): {
+		/*
+		 * Exactly the same here as the %fs handling above.
+		 */
+		unsigned int seg = task->thread.gsindex;
+		if (task->thread.gs != 0)
+			return task->thread.gs;
+		if (task == current)
+			asm("movl %%gs,%0" : "=r" (seg));
+		if (seg != GS_TLS_SEL)
+			return 0;
+		return get_desc_base(&task->thread.tls_array[GS_TLS]);
+	}
+#endif
 	}
 
 	return *pt_regs_access(task_pt_regs(task), offset);
@@ -187,7 +389,7 @@ static int ptrace_set_debugreg(struct task_struct *child,
 	if (unlikely(n == 4 || n == 5))
 		return -EIO;
 
-	if (n < 4 && unlikely(data >= TASK_SIZE - 3))
+	if (n < 4 && unlikely(data >= debugreg_addr_limit(child)))
 		return -EIO;
 
 	switch (n) {
@@ -197,6 +399,8 @@ static int ptrace_set_debugreg(struct task_struct *child,
 	case 3:		child->thread.debugreg3 = data; break;
 
 	case 6:
+		if ((data & ~0xffffffffUL) != 0)
+			return -EIO;
 		child->thread.debugreg6 = data;
 		break;
 
@@ -215,7 +419,7 @@ static int ptrace_set_debugreg(struct task_struct *child,
 		 * data in the watchpoint case.
 		 *
 		 * The invalid values are:
-		 * - LENi == 0x10 (undefined), so mask |= 0x0f00.
+		 * - LENi == 0x10 (undefined), so mask |= 0x0f00.	[32-bit]
 		 * - R/Wi == 0x10 (break on I/O reads or writes), so
 		 *   mask |= 0x4444.
 		 * - R/Wi == 0x00 && LENi != 0x00, so we have mask |=
@@ -231,9 +435,14 @@ static int ptrace_set_debugreg(struct task_struct *child,
 		 * 64-bit kernel), so the x86_64 mask value is 0x5454.
 		 * See the AMD manual no. 24593 (AMD64 System Programming)
 		 */
+#ifdef CONFIG_X86_32
+#define	DR7_MASK	0x5f54
+#else
+#define	DR7_MASK	0x5554
+#endif
 		data &= ~DR_CONTROL_RESERVED;
 		for (i = 0; i < 4; i++)
-			if ((0x5f54 >> ((data >> (16 + 4*i)) & 0xf)) & 1)
+			if ((DR7_MASK >> ((data >> (16 + 4*i)) & 0xf)) & 1)
 				return -EIO;
 		child->thread.debugreg7 = data;
 		if (data)
-- 
cgit v1.2.3-59-g8ed1b


From e9c86c789f067f75211cedb3f13aa58369b0d14a Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:01 +0100
Subject: x86: x86 ptrace arch merge

This adds 64-bit support to arch_ptrace in arch/x86/kernel/ptrace.c,
so this function can be used for native ptrace on both 32 and 64.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 65 ++++++++++++++++++++++++++----------------------
 1 file changed, 35 insertions(+), 30 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index c709868d28a5..7161d60e152d 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -463,12 +463,13 @@ static int ptrace_set_debugreg(struct task_struct *child,
 void ptrace_disable(struct task_struct *child)
 {
 	user_disable_single_step(child);
+#ifdef TIF_SYSCALL_EMU
 	clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
+#endif
 }
 
 long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
-	struct user * dummy = NULL;
 	int i, ret;
 	unsigned long __user *datap = (unsigned long __user *)data;
 
@@ -484,18 +485,17 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		unsigned long tmp;
 
 		ret = -EIO;
-		if ((addr & 3) || addr < 0 ||
-		    addr > sizeof(struct user) - 3)
+		if ((addr & (sizeof(data) - 1)) || addr < 0 ||
+		    addr >= sizeof(struct user))
 			break;
 
 		tmp = 0;  /* Default return condition */
-		if(addr < FRAME_SIZE*sizeof(long))
+		if (addr < sizeof(struct user_regs_struct))
 			tmp = getreg(child, addr);
-		if(addr >= (long) &dummy->u_debugreg[0] &&
-		   addr <= (long) &dummy->u_debugreg[7]){
-			addr -= (long) &dummy->u_debugreg[0];
-			addr = addr >> 2;
-			tmp = ptrace_get_debugreg(child, addr);
+		else if (addr >= offsetof(struct user, u_debugreg[0]) &&
+			 addr <= offsetof(struct user, u_debugreg[7])) {
+			addr -= offsetof(struct user, u_debugreg[0]);
+			tmp = ptrace_get_debugreg(child, addr / sizeof(data));
 		}
 		ret = put_user(tmp, datap);
 		break;
@@ -509,34 +509,26 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 	case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
 		ret = -EIO;
-		if ((addr & 3) || addr < 0 ||
-		    addr > sizeof(struct user) - 3)
+		if ((addr & (sizeof(data) - 1)) || addr < 0 ||
+		    addr >= sizeof(struct user))
 			break;
 
-		if (addr < FRAME_SIZE*sizeof(long)) {
+		if (addr < sizeof(struct user_regs_struct))
 			ret = putreg(child, addr, data);
-			break;
+		else if (addr >= offsetof(struct user, u_debugreg[0]) &&
+			 addr <= offsetof(struct user, u_debugreg[7])) {
+			addr -= offsetof(struct user, u_debugreg[0]);
+			ret = ptrace_set_debugreg(child,
+						  addr / sizeof(data), data);
 		}
-		/* We need to be very careful here.  We implicitly
-		   want to modify a portion of the task_struct, and we
-		   have to be selective about what portions we allow someone
-		   to modify. */
-
-		  ret = -EIO;
-		  if(addr >= (long) &dummy->u_debugreg[0] &&
-		     addr <= (long) &dummy->u_debugreg[7]){
-			  addr -= (long) &dummy->u_debugreg;
-			  addr = addr >> 2;
-			  ret = ptrace_set_debugreg(child, addr, data);
-		  }
-		  break;
+		break;
 
 	case PTRACE_GETREGS: { /* Get all gp regs from the child. */
-	  	if (!access_ok(VERIFY_WRITE, datap, FRAME_SIZE*sizeof(long))) {
+		if (!access_ok(VERIFY_WRITE, datap, sizeof(struct user_regs_struct))) {
 			ret = -EIO;
 			break;
 		}
-		for ( i = 0; i < FRAME_SIZE*sizeof(long); i += sizeof(long) ) {
+		for (i = 0; i < sizeof(struct user_regs_struct); i += sizeof(long)) {
 			__put_user(getreg(child, i), datap);
 			datap++;
 		}
@@ -546,11 +538,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 	case PTRACE_SETREGS: { /* Set all gp regs in the child. */
 		unsigned long tmp;
-	  	if (!access_ok(VERIFY_READ, datap, FRAME_SIZE*sizeof(long))) {
+		if (!access_ok(VERIFY_READ, datap, sizeof(struct user_regs_struct))) {
 			ret = -EIO;
 			break;
 		}
-		for ( i = 0; i < FRAME_SIZE*sizeof(long); i += sizeof(long) ) {
+		for (i = 0; i < sizeof(struct user_regs_struct); i += sizeof(long)) {
 			__get_user(tmp, datap);
 			putreg(child, i, tmp);
 			datap++;
@@ -584,6 +576,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		break;
 	}
 
+#ifdef CONFIG_X86_32
 	case PTRACE_GETFPXREGS: { /* Get the child extended FPU state. */
 		if (!access_ok(VERIFY_WRITE, datap,
 			       sizeof(struct user_fxsr_struct))) {
@@ -606,7 +599,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		ret = set_fpxregs(child, (struct user_fxsr_struct __user *)data);
 		break;
 	}
+#endif
 
+#if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
 	case PTRACE_GET_THREAD_AREA:
 		if (addr < 0)
 			return -EIO;
@@ -620,6 +615,16 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		ret = do_set_thread_area(child, addr,
 					 (struct user_desc __user *) data, 0);
 		break;
+#endif
+
+#ifdef CONFIG_X86_64
+		/* normal 64bit interface to access TLS data.
+		   Works just like arch_prctl, except that the arguments
+		   are reversed. */
+	case PTRACE_ARCH_PRCTL:
+		ret = do_arch_prctl(child, data, addr);
+		break;
+#endif
 
 	default:
 		ret = ptrace_request(child, request, addr, data);
-- 
cgit v1.2.3-59-g8ed1b


From 86976cd805eccf46d9b720bb188a540fc5769427 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:01 +0100
Subject: x86: x86 ptrace merge syscall trace

This moves the 64-bit syscall tracing functions into ptrace.c,
so that ptrace_64.c becomes entirely obsolete.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 7161d60e152d..509804957f5f 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -634,6 +634,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	return ret;
 }
 
+#ifdef CONFIG_X86_32
+
 void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code)
 {
 	struct siginfo info;
@@ -731,3 +733,65 @@ out:
 		audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax);
 	return 1;
 }
+
+#else  /* CONFIG_X86_64 */
+
+static void syscall_trace(struct pt_regs *regs)
+{
+
+#if 0
+	printk("trace %s ip %lx sp %lx ax %d origrax %d caller %lx tiflags %x ptrace %x\n",
+	       current->comm,
+	       regs->ip, regs->sp, regs->ax, regs->orig_ax, __builtin_return_address(0),
+	       current_thread_info()->flags, current->ptrace);
+#endif
+
+	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
+				? 0x80 : 0));
+	/*
+	 * this isn't the same as continuing with a signal, but it will do
+	 * for normal use.  strace only continues with a signal if the
+	 * stopping signal is not SIGTRAP.  -brl
+	 */
+	if (current->exit_code) {
+		send_sig(current->exit_code, current, 1);
+		current->exit_code = 0;
+	}
+}
+
+asmlinkage void syscall_trace_enter(struct pt_regs *regs)
+{
+	/* do the secure computing check first */
+	secure_computing(regs->orig_ax);
+
+	if (test_thread_flag(TIF_SYSCALL_TRACE)
+	    && (current->ptrace & PT_PTRACED))
+		syscall_trace(regs);
+
+	if (unlikely(current->audit_context)) {
+		if (test_thread_flag(TIF_IA32)) {
+			audit_syscall_entry(AUDIT_ARCH_I386,
+					    regs->orig_ax,
+					    regs->bx, regs->cx,
+					    regs->dx, regs->si);
+		} else {
+			audit_syscall_entry(AUDIT_ARCH_X86_64,
+					    regs->orig_ax,
+					    regs->di, regs->si,
+					    regs->dx, regs->r10);
+		}
+	}
+}
+
+asmlinkage void syscall_trace_leave(struct pt_regs *regs)
+{
+	if (unlikely(current->audit_context))
+		audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax);
+
+	if ((test_thread_flag(TIF_SYSCALL_TRACE)
+	     || test_thread_flag(TIF_SINGLESTEP))
+	    && (current->ptrace & PT_PTRACED))
+		syscall_trace(regs);
+}
+
+#endif	/* CONFIG_X86_32 */
-- 
cgit v1.2.3-59-g8ed1b


From cb757c41f3c2e1ac6f950f9d070e9849983efc18 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:01 +0100
Subject: x86: x86 ia32 ptrace getreg/putreg merge

This reimplements the 64-bit IA32-emulation register access
functions in arch/x86/kernel/ptrace.c, where they can share
some guts with the native access functions directly.

These functions are not used yet, but this paves the way to move
IA32 ptrace support into this file to share its local functions.

[akpm@linuxfoundation.org: Build fix]

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 130 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 128 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 509804957f5f..d56aa18309f8 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -215,14 +215,14 @@ static int set_segment_reg(struct task_struct *task,
 #ifdef CONFIG_IA32_EMULATION
 		if (test_tsk_thread_flag(task, TIF_IA32))
 			task_pt_regs(task)->cs = value;
-		break;
 #endif
+		break;
 	case offsetof(struct user_regs_struct,ss):
 #ifdef CONFIG_IA32_EMULATION
 		if (test_tsk_thread_flag(task, TIF_IA32))
 			task_pt_regs(task)->ss = value;
-		break;
 #endif
+		break;
 	}
 
 	return 0;
@@ -634,6 +634,132 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	return ret;
 }
 
+#ifdef CONFIG_IA32_EMULATION
+
+#include <asm/user32.h>
+
+#define R32(l,q)							\
+	case offsetof(struct user32, regs.l):				\
+		regs->q = value; break
+
+#define SEG32(rs)							\
+	case offsetof(struct user32, regs.rs):				\
+		return set_segment_reg(child,				\
+				       offsetof(struct user_regs_struct, rs), \
+				       value);				\
+		break
+
+static int putreg32(struct task_struct *child, unsigned regno, u32 value)
+{
+	struct pt_regs *regs = task_pt_regs(child);
+
+	switch (regno) {
+
+	SEG32(cs);
+	SEG32(ds);
+	SEG32(es);
+	SEG32(fs);
+	SEG32(gs);
+	SEG32(ss);
+
+	R32(ebx, bx);
+	R32(ecx, cx);
+	R32(edx, dx);
+	R32(edi, di);
+	R32(esi, si);
+	R32(ebp, bp);
+	R32(eax, ax);
+	R32(orig_eax, orig_ax);
+	R32(eip, ip);
+	R32(esp, sp);
+
+	case offsetof(struct user32, regs.eflags):
+		return set_flags(child, value);
+
+	case offsetof(struct user32, u_debugreg[0]) ...
+		offsetof(struct user32, u_debugreg[7]):
+		regno -= offsetof(struct user32, u_debugreg[0]);
+		return ptrace_set_debugreg(child, regno / 4, value);
+
+	default:
+		if (regno > sizeof(struct user32) || (regno & 3))
+			return -EIO;
+
+		/*
+		 * Other dummy fields in the virtual user structure
+		 * are ignored
+		 */
+		break;
+	}
+	return 0;
+}
+
+#undef R32
+#undef SEG32
+
+#define R32(l,q)							\
+	case offsetof(struct user32, regs.l):				\
+		*val = regs->q; break
+
+#define SEG32(rs)							\
+	case offsetof(struct user32, regs.rs):				\
+		*val = get_segment_reg(child,				\
+				       offsetof(struct user_regs_struct, rs)); \
+		break
+
+static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
+{
+	struct pt_regs *regs = task_pt_regs(child);
+
+	switch (regno) {
+
+	SEG32(ds);
+	SEG32(es);
+	SEG32(fs);
+	SEG32(gs);
+
+	R32(cs, cs);
+	R32(ss, ss);
+	R32(ebx, bx);
+	R32(ecx, cx);
+	R32(edx, dx);
+	R32(edi, di);
+	R32(esi, si);
+	R32(ebp, bp);
+	R32(eax, ax);
+	R32(orig_eax, orig_ax);
+	R32(eip, ip);
+	R32(esp, sp);
+
+	case offsetof(struct user32, regs.eflags):
+		*val = get_flags(child);
+		break;
+
+	case offsetof(struct user32, u_debugreg[0]) ...
+		offsetof(struct user32, u_debugreg[7]):
+		regno -= offsetof(struct user32, u_debugreg[0]);
+		*val = ptrace_get_debugreg(child, regno / 4);
+		break;
+
+	default:
+		if (regno > sizeof(struct user32) || (regno & 3))
+			return -EIO;
+
+		/*
+		 * Other dummy fields in the virtual user structure
+		 * are ignored
+		 */
+		*val = 0;
+		break;
+	}
+	return 0;
+}
+
+#undef R32
+#undef SEG32
+
+#endif	/* CONFIG_IA32_EMULATION */
+
 #ifdef CONFIG_X86_32
 
 void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code)
-- 
cgit v1.2.3-59-g8ed1b


From 099cd6e9dac84baafdef00c3955ee68e71282f86 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:01 +0100
Subject: x86: x86 ia32 ptrace arch merge

This moves the sys32_ptrace code into arch/x86/kernel/ptrace.c,
verbatim except for a few hard-coded sizes replaced with sizeof.
Here this code can use the shared local functions in this file.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 214 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 214 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index d56aa18309f8..3399c1be79b8 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -636,6 +636,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 #ifdef CONFIG_IA32_EMULATION
 
+#include <linux/compat.h>
+#include <linux/syscalls.h>
+#include <asm/ia32.h>
+#include <asm/fpu32.h>
 #include <asm/user32.h>
 
 #define R32(l,q)							\
@@ -758,6 +762,216 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 #undef R32
 #undef SEG32
 
+static long ptrace32_siginfo(unsigned request, u32 pid, u32 addr, u32 data)
+{
+	siginfo_t __user *si = compat_alloc_user_space(sizeof(siginfo_t));
+	compat_siginfo_t __user *si32 = compat_ptr(data);
+	siginfo_t ssi;
+	int ret;
+
+	if (request == PTRACE_SETSIGINFO) {
+		memset(&ssi, 0, sizeof(siginfo_t));
+		ret = copy_siginfo_from_user32(&ssi, si32);
+		if (ret)
+			return ret;
+		if (copy_to_user(si, &ssi, sizeof(siginfo_t)))
+			return -EFAULT;
+	}
+	ret = sys_ptrace(request, pid, addr, (unsigned long)si);
+	if (ret)
+		return ret;
+	if (request == PTRACE_GETSIGINFO) {
+		if (copy_from_user(&ssi, si, sizeof(siginfo_t)))
+			return -EFAULT;
+		ret = copy_siginfo_to_user32(si32, &ssi);
+	}
+	return ret;
+}
+
+asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
+{
+	struct task_struct *child;
+	struct pt_regs *childregs;
+	void __user *datap = compat_ptr(data);
+	int ret;
+	__u32 val;
+
+	switch (request) {
+	case PTRACE_TRACEME:
+	case PTRACE_ATTACH:
+	case PTRACE_KILL:
+	case PTRACE_CONT:
+	case PTRACE_SINGLESTEP:
+	case PTRACE_SINGLEBLOCK:
+	case PTRACE_DETACH:
+	case PTRACE_SYSCALL:
+	case PTRACE_OLDSETOPTIONS:
+	case PTRACE_SETOPTIONS:
+	case PTRACE_SET_THREAD_AREA:
+	case PTRACE_GET_THREAD_AREA:
+		return sys_ptrace(request, pid, addr, data);
+
+	default:
+		return -EINVAL;
+
+	case PTRACE_PEEKTEXT:
+	case PTRACE_PEEKDATA:
+	case PTRACE_POKEDATA:
+	case PTRACE_POKETEXT:
+	case PTRACE_POKEUSR:
+	case PTRACE_PEEKUSR:
+	case PTRACE_GETREGS:
+	case PTRACE_SETREGS:
+	case PTRACE_SETFPREGS:
+	case PTRACE_GETFPREGS:
+	case PTRACE_SETFPXREGS:
+	case PTRACE_GETFPXREGS:
+	case PTRACE_GETEVENTMSG:
+		break;
+
+	case PTRACE_SETSIGINFO:
+	case PTRACE_GETSIGINFO:
+		return ptrace32_siginfo(request, pid, addr, data);
+	}
+
+	child = ptrace_get_task_struct(pid);
+	if (IS_ERR(child))
+		return PTR_ERR(child);
+
+	ret = ptrace_check_attach(child, request == PTRACE_KILL);
+	if (ret < 0)
+		goto out;
+
+	childregs = task_pt_regs(child);
+
+	switch (request) {
+	case PTRACE_PEEKDATA:
+	case PTRACE_PEEKTEXT:
+		ret = 0;
+		if (access_process_vm(child, addr, &val, sizeof(u32), 0) !=
+		    sizeof(u32))
+			ret = -EIO;
+		else
+			ret = put_user(val, (unsigned int __user *)datap);
+		break;
+
+	case PTRACE_POKEDATA:
+	case PTRACE_POKETEXT:
+		ret = 0;
+		if (access_process_vm(child, addr, &data, sizeof(u32), 1) !=
+		    sizeof(u32))
+			ret = -EIO;
+		break;
+
+	case PTRACE_PEEKUSR:
+		ret = getreg32(child, addr, &val);
+		if (ret == 0)
+			ret = put_user(val, (__u32 __user *)datap);
+		break;
+
+	case PTRACE_POKEUSR:
+		ret = putreg32(child, addr, data);
+		break;
+
+	case PTRACE_GETREGS: { /* Get all gp regs from the child. */
+		int i;
+
+		if (!access_ok(VERIFY_WRITE, datap, 16*4)) {
+			ret = -EIO;
+			break;
+		}
+		ret = 0;
+		for (i = 0; i < sizeof(struct user_regs_struct32); i += sizeof(__u32)) {
+			getreg32(child, i, &val);
+			ret |= __put_user(val, (u32 __user *)datap);
+			datap += sizeof(u32);
+		}
+		break;
+	}
+
+	case PTRACE_SETREGS: { /* Set all gp regs in the child. */
+		unsigned long tmp;
+		int i;
+
+		if (!access_ok(VERIFY_READ, datap, 16*4)) {
+			ret = -EIO;
+			break;
+		}
+		ret = 0;
+		for (i = 0; i < sizeof(struct user_regs_struct32); i += sizeof(u32)) {
+			ret |= __get_user(tmp, (u32 __user *)datap);
+			putreg32(child, i, tmp);
+			datap += sizeof(u32);
+		}
+		break;
+	}
+
+	case PTRACE_GETFPREGS:
+		ret = -EIO;
+		if (!access_ok(VERIFY_READ, compat_ptr(data),
+			       sizeof(struct user_i387_struct)))
+			break;
+		save_i387_ia32(child, datap, childregs, 1);
+		ret = 0;
+			break;
+
+	case PTRACE_SETFPREGS:
+		ret = -EIO;
+		if (!access_ok(VERIFY_WRITE, datap,
+			       sizeof(struct user_i387_struct)))
+			break;
+		ret = 0;
+		/* don't check EFAULT to be bug-to-bug compatible to i386 */
+		restore_i387_ia32(child, datap, 1);
+		break;
+
+	case PTRACE_GETFPXREGS: {
+		struct user32_fxsr_struct __user *u = datap;
+
+		init_fpu(child);
+		ret = -EIO;
+		if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
+			break;
+			ret = -EFAULT;
+		if (__copy_to_user(u, &child->thread.i387.fxsave, sizeof(*u)))
+			break;
+		ret = __put_user(childregs->cs, &u->fcs);
+		ret |= __put_user(child->thread.ds, &u->fos);
+		break;
+	}
+	case PTRACE_SETFPXREGS: {
+		struct user32_fxsr_struct __user *u = datap;
+
+		unlazy_fpu(child);
+		ret = -EIO;
+		if (!access_ok(VERIFY_READ, u, sizeof(*u)))
+			break;
+		/*
+		 * no checking to be bug-to-bug compatible with i386.
+		 * but silence warning
+		 */
+		if (__copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u)))
+			;
+		set_stopped_child_used_math(child);
+		child->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
+		ret = 0;
+		break;
+	}
+
+	case PTRACE_GETEVENTMSG:
+		ret = put_user(child->ptrace_message,
+			       (unsigned int __user *)compat_ptr(data));
+		break;
+
+	default:
+		BUG();
+	}
+
+ out:
+	put_task_struct(child);
+	return ret;
+}
+
 #endif	/* CONFIG_IA32_EMULATION */
 
 #ifdef CONFIG_X86_32
-- 
cgit v1.2.3-59-g8ed1b


From cbc9d9d98215f08ed998228e7bce88502d1ce360 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:02 +0100
Subject: x86: x86 ptrace merge complete

This switches over the 64-bit build to use the shared ptrace code,
instead of the old ptrace_64.c and arch/x86/ia32/ptrace32.c code.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/Makefile      | 2 +-
 arch/x86/kernel/Makefile_64 | 3 ++-
 include/asm-x86/ptrace.h    | 3 ---
 3 files changed, 3 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index ea6088640847..ec71cfeac87e 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -3,7 +3,7 @@
 #
 
 obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o \
-	ia32_binfmt.o fpu32.o ptrace32.o
+	ia32_binfmt.o fpu32.o
 
 sysv-$(CONFIG_SYSVIPC) := ipc32.o
 obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index d908f0175e76..b41e838dc788 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -7,12 +7,13 @@ CPPFLAGS_vmlinux.lds += -Ux86_64
 EXTRA_AFLAGS	:= -traditional
 
 obj-y	:= process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
-		ptrace_64.o time_64.o ioport_64.o ldt.o setup_64.o i8259_64.o sys_x86_64.o \
+		time_64.o ioport_64.o ldt.o setup_64.o i8259_64.o sys_x86_64.o \
 		x8664_ksyms_64.o i387_64.o syscall_64.o vsyscall_64.o \
 		setup64.o bootflag.o e820_64.o reboot_64.o quirks.o i8237.o \
 		pci-dma_64.o pci-nommu_64.o alternative.o hpet.o tsc_64.o bugs_64.o \
 		i8253.o io_delay.o rtc.o
 
+obj-y				+= ptrace.o
 obj-y				+= step.o
 
 obj-$(CONFIG_IA32_EMULATION)	+= tls.o
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index 1b7a8b8d6f60..9228870f6157 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -164,9 +164,6 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 
 struct task_struct;
 
-extern unsigned long ptrace_get_debugreg(struct task_struct *child, int n);
-extern int ptrace_set_debugreg(struct task_struct *child, int n, unsigned long);
-
 extern unsigned long
 convert_rip_to_linear(struct task_struct *child, struct pt_regs *regs);
 
-- 
cgit v1.2.3-59-g8ed1b


From 25149b62d3e6a3e737af39bd4a0b4e97de0811b7 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:02 +0100
Subject: x86: x86 ptrace merge removals

This removes the old separate 64-bit and ia32 ptrace source files.
They are no longer used.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ptrace32.c    | 411 --------------------------------------
 arch/x86/kernel/ptrace_64.c | 470 --------------------------------------------
 2 files changed, 881 deletions(-)
 delete mode 100644 arch/x86/ia32/ptrace32.c
 delete mode 100644 arch/x86/kernel/ptrace_64.c

(limited to 'arch')

diff --git a/arch/x86/ia32/ptrace32.c b/arch/x86/ia32/ptrace32.c
deleted file mode 100644
index d5663e295330..000000000000
--- a/arch/x86/ia32/ptrace32.c
+++ /dev/null
@@ -1,411 +0,0 @@
-/*
- * 32bit ptrace for x86-64.
- *
- * Copyright 2001,2002 Andi Kleen, SuSE Labs.
- * Some parts copied from arch/i386/kernel/ptrace.c. See that file for earlier
- * copyright.
- *
- * This allows to access 64bit processes too; but there is no way to
- * see the extended register contents.
- */
-
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-#include <linux/sched.h>
-#include <linux/syscalls.h>
-#include <linux/unistd.h>
-#include <linux/mm.h>
-#include <linux/err.h>
-#include <linux/ptrace.h>
-#include <asm/ptrace.h>
-#include <asm/compat.h>
-#include <asm/uaccess.h>
-#include <asm/user32.h>
-#include <asm/user.h>
-#include <asm/errno.h>
-#include <asm/debugreg.h>
-#include <asm/i387.h>
-#include <asm/fpu32.h>
-#include <asm/ia32.h>
-
-/*
- * Determines which flags the user has access to [1 = access, 0 = no access].
- * Prohibits changing ID(21), VIP(20), VIF(19), VM(17), IOPL(12-13), IF(9).
- * Also masks reserved bits (31-22, 15, 5, 3, 1).
- */
-#define FLAG_MASK 0x54dd5UL
-
-#define R32(l,q)							\
-	case offsetof(struct user32, regs.l):				\
-		regs->q = val; break;
-
-static int putreg32(struct task_struct *child, unsigned regno, u32 val)
-{
-	struct pt_regs *regs = task_pt_regs(child);
-
-	switch (regno) {
-	case offsetof(struct user32, regs.fs):
-		if (val && (val & 3) != 3)
-			return -EIO;
-		child->thread.fsindex = val & 0xffff;
-		if (child == current)
-			loadsegment(fs, child->thread.fsindex);
-		break;
-	case offsetof(struct user32, regs.gs):
-		if (val && (val & 3) != 3)
-			return -EIO;
-		child->thread.gsindex = val & 0xffff;
-		if (child == current)
-			load_gs_index(child->thread.gsindex);
-		break;
-	case offsetof(struct user32, regs.ds):
-		if (val && (val & 3) != 3)
-			return -EIO;
-		child->thread.ds = val & 0xffff;
-		if (child == current)
-			loadsegment(ds, child->thread.ds);
-		break;
-	case offsetof(struct user32, regs.es):
-		child->thread.es = val & 0xffff;
-		if (child == current)
-			loadsegment(es, child->thread.ds);
-		break;
-	case offsetof(struct user32, regs.ss):
-		if ((val & 3) != 3)
-			return -EIO;
-		regs->ss = val & 0xffff;
-		break;
-	case offsetof(struct user32, regs.cs):
-		if ((val & 3) != 3)
-			return -EIO;
-		regs->cs = val & 0xffff;
-		break;
-
-	R32(ebx, bx);
-	R32(ecx, cx);
-	R32(edx, dx);
-	R32(edi, di);
-	R32(esi, si);
-	R32(ebp, bp);
-	R32(eax, ax);
-	R32(orig_eax, orig_ax);
-	R32(eip, ip);
-	R32(esp, sp);
-
-	case offsetof(struct user32, regs.eflags):
-		val &= FLAG_MASK;
-		/*
-		 * If the user value contains TF, mark that
-		 * it was not "us" (the debugger) that set it.
-		 * If not, make sure it stays set if we had.
-		 */
-		if (val & X86_EFLAGS_TF)
-			clear_tsk_thread_flag(child, TIF_FORCED_TF);
-		else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
-			val |= X86_EFLAGS_TF;
-		regs->flags = val | (regs->flags & ~FLAG_MASK);
-		break;
-
-	case offsetof(struct user32, u_debugreg[0]) ...
-		offsetof(struct user32, u_debugreg[7]):
-		regno -= offsetof(struct user32, u_debugreg[0]);
-		return ptrace_set_debugreg(child, regno / 4, val);
-
-	default:
-		if (regno > sizeof(struct user32) || (regno & 3))
-			return -EIO;
-
-		/*
-		 * Other dummy fields in the virtual user structure
-		 * are ignored
-		 */
-		break;
-	}
-	return 0;
-}
-
-#undef R32
-
-#define R32(l,q)							\
-	case offsetof(struct user32, regs.l):				\
-		*val = regs->q; break
-
-static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
-{
-	struct pt_regs *regs = task_pt_regs(child);
-
-	switch (regno) {
-	case offsetof(struct user32, regs.fs):
-		*val = child->thread.fsindex;
-		if (child == current)
-			asm("movl %%fs,%0" : "=r" (*val));
-		break;
-	case offsetof(struct user32, regs.gs):
-		*val = child->thread.gsindex;
-		if (child == current)
-			asm("movl %%gs,%0" : "=r" (*val));
-		break;
-	case offsetof(struct user32, regs.ds):
-		*val = child->thread.ds;
-		if (child == current)
-			asm("movl %%ds,%0" : "=r" (*val));
-		break;
-	case offsetof(struct user32, regs.es):
-		*val = child->thread.es;
-		if (child == current)
-			asm("movl %%es,%0" : "=r" (*val));
-		break;
-
-	R32(cs, cs);
-	R32(ss, ss);
-	R32(ebx, bx);
-	R32(ecx, cx);
-	R32(edx, dx);
-	R32(edi, di);
-	R32(esi, si);
-	R32(ebp, bp);
-	R32(eax, ax);
-	R32(orig_eax, orig_ax);
-	R32(eip, ip);
-	R32(esp, sp);
-
-	case offsetof(struct user32, regs.eflags):
-		/*
-		 * If the debugger set TF, hide it from the readout.
-		 */
-		*val = regs->flags;
-		if (test_tsk_thread_flag(child, TIF_FORCED_TF))
-			*val &= ~X86_EFLAGS_TF;
-		break;
-
-	case offsetof(struct user32, u_debugreg[0]) ...
-		offsetof(struct user32, u_debugreg[7]):
-		regno -= offsetof(struct user32, u_debugreg[0]);
-		*val = ptrace_get_debugreg(child, regno / 4);
-		break;
-
-	default:
-		if (regno > sizeof(struct user32) || (regno & 3))
-			return -EIO;
-
-		/*
-		 * Other dummy fields in the virtual user structure
-		 * are ignored
-		 */
-		*val = 0;
-		break;
-	}
-	return 0;
-}
-
-#undef R32
-
-static long ptrace32_siginfo(unsigned request, u32 pid, u32 addr, u32 data)
-{
-	siginfo_t __user *si = compat_alloc_user_space(sizeof(siginfo_t));
-	compat_siginfo_t __user *si32 = compat_ptr(data);
-	siginfo_t ssi;
-	int ret;
-
-	if (request == PTRACE_SETSIGINFO) {
-		memset(&ssi, 0, sizeof(siginfo_t));
-		ret = copy_siginfo_from_user32(&ssi, si32);
-		if (ret)
-			return ret;
-		if (copy_to_user(si, &ssi, sizeof(siginfo_t)))
-			return -EFAULT;
-	}
-	ret = sys_ptrace(request, pid, addr, (unsigned long)si);
-	if (ret)
-		return ret;
-	if (request == PTRACE_GETSIGINFO) {
-		if (copy_from_user(&ssi, si, sizeof(siginfo_t)))
-			return -EFAULT;
-		ret = copy_siginfo_to_user32(si32, &ssi);
-	}
-	return ret;
-}
-
-asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
-{
-	struct task_struct *child;
-	struct pt_regs *childregs;
-	void __user *datap = compat_ptr(data);
-	int ret;
-	__u32 val;
-
-	switch (request) {
-	case PTRACE_TRACEME:
-	case PTRACE_ATTACH:
-	case PTRACE_KILL:
-	case PTRACE_CONT:
-	case PTRACE_SINGLESTEP:
-	case PTRACE_SINGLEBLOCK:
-	case PTRACE_DETACH:
-	case PTRACE_SYSCALL:
-	case PTRACE_OLDSETOPTIONS:
-	case PTRACE_SETOPTIONS:
-	case PTRACE_SET_THREAD_AREA:
-	case PTRACE_GET_THREAD_AREA:
-		return sys_ptrace(request, pid, addr, data);
-
-	default:
-		return -EINVAL;
-
-	case PTRACE_PEEKTEXT:
-	case PTRACE_PEEKDATA:
-	case PTRACE_POKEDATA:
-	case PTRACE_POKETEXT:
-	case PTRACE_POKEUSR:
-	case PTRACE_PEEKUSR:
-	case PTRACE_GETREGS:
-	case PTRACE_SETREGS:
-	case PTRACE_SETFPREGS:
-	case PTRACE_GETFPREGS:
-	case PTRACE_SETFPXREGS:
-	case PTRACE_GETFPXREGS:
-	case PTRACE_GETEVENTMSG:
-		break;
-
-	case PTRACE_SETSIGINFO:
-	case PTRACE_GETSIGINFO:
-		return ptrace32_siginfo(request, pid, addr, data);
-	}
-
-	child = ptrace_get_task_struct(pid);
-	if (IS_ERR(child))
-		return PTR_ERR(child);
-
-	ret = ptrace_check_attach(child, request == PTRACE_KILL);
-	if (ret < 0)
-		goto out;
-
-	childregs = task_pt_regs(child);
-
-	switch (request) {
-	case PTRACE_PEEKDATA:
-	case PTRACE_PEEKTEXT:
-		ret = 0;
-		if (access_process_vm(child, addr, &val, sizeof(u32), 0) !=
-		    sizeof(u32))
-			ret = -EIO;
-		else
-			ret = put_user(val, (unsigned int __user *)datap);
-		break;
-
-	case PTRACE_POKEDATA:
-	case PTRACE_POKETEXT:
-		ret = 0;
-		if (access_process_vm(child, addr, &data, sizeof(u32), 1) !=
-		    sizeof(u32))
-			ret = -EIO;
-		break;
-
-	case PTRACE_PEEKUSR:
-		ret = getreg32(child, addr, &val);
-		if (ret == 0)
-			ret = put_user(val, (__u32 __user *)datap);
-		break;
-
-	case PTRACE_POKEUSR:
-		ret = putreg32(child, addr, data);
-		break;
-
-	case PTRACE_GETREGS: { /* Get all gp regs from the child. */
-		int i;
-
-		if (!access_ok(VERIFY_WRITE, datap, 16*4)) {
-			ret = -EIO;
-			break;
-		}
-		ret = 0;
-		for (i = 0; i <= 16*4; i += sizeof(__u32)) {
-			getreg32(child, i, &val);
-			ret |= __put_user(val, (u32 __user *)datap);
-			datap += sizeof(u32);
-		}
-		break;
-	}
-
-	case PTRACE_SETREGS: { /* Set all gp regs in the child. */
-		unsigned long tmp;
-		int i;
-
-		if (!access_ok(VERIFY_READ, datap, 16*4)) {
-			ret = -EIO;
-			break;
-		}
-		ret = 0;
-		for (i = 0; i <= 16*4; i += sizeof(u32)) {
-			ret |= __get_user(tmp, (u32 __user *)datap);
-			putreg32(child, i, tmp);
-			datap += sizeof(u32);
-		}
-		break;
-	}
-
-	case PTRACE_GETFPREGS:
-		ret = -EIO;
-		if (!access_ok(VERIFY_READ, compat_ptr(data),
-			       sizeof(struct user_i387_struct)))
-			break;
-		save_i387_ia32(child, datap, childregs, 1);
-		ret = 0;
-			break;
-
-	case PTRACE_SETFPREGS:
-		ret = -EIO;
-		if (!access_ok(VERIFY_WRITE, datap,
-			       sizeof(struct user_i387_struct)))
-			break;
-		ret = 0;
-		/* don't check EFAULT to be bug-to-bug compatible to i386 */
-		restore_i387_ia32(child, datap, 1);
-		break;
-
-	case PTRACE_GETFPXREGS: {
-		struct user32_fxsr_struct __user *u = datap;
-
-		init_fpu(child);
-		ret = -EIO;
-		if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
-			break;
-			ret = -EFAULT;
-		if (__copy_to_user(u, &child->thread.i387.fxsave, sizeof(*u)))
-			break;
-		ret = __put_user(childregs->cs, &u->fcs);
-		ret |= __put_user(child->thread.ds, &u->fos);
-		break;
-	}
-	case PTRACE_SETFPXREGS: {
-		struct user32_fxsr_struct __user *u = datap;
-
-		unlazy_fpu(child);
-		ret = -EIO;
-		if (!access_ok(VERIFY_READ, u, sizeof(*u)))
-			break;
-		/*
-		 * no checking to be bug-to-bug compatible with i386.
-		 * but silence warning
-		 */
-		if (__copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u)))
-			;
-		set_stopped_child_used_math(child);
-		child->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
-		ret = 0;
-		break;
-	}
-
-	case PTRACE_GETEVENTMSG:
-		ret = put_user(child->ptrace_message,
-			       (unsigned int __user *)compat_ptr(data));
-		break;
-
-	default:
-		BUG();
-	}
-
- out:
-	put_task_struct(child);
-	return ret;
-}
diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
deleted file mode 100644
index 5979dbe8e0a2..000000000000
--- a/arch/x86/kernel/ptrace_64.c
+++ /dev/null
@@ -1,470 +0,0 @@
-/* By Ross Biro 1/23/92 */
-/*
- * Pentium III FXSR, SSE support
- *	Gareth Hughes <gareth@valinux.com>, May 2000
- *
- * x86-64 port 2000-2002 Andi Kleen
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/security.h>
-#include <linux/audit.h>
-#include <linux/seccomp.h>
-#include <linux/signal.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/prctl.h>
-#include <asm/i387.h>
-#include <asm/debugreg.h>
-#include <asm/ldt.h>
-#include <asm/desc.h>
-#include <asm/proto.h>
-#include <asm/ia32.h>
-
-/*
- * does not yet catch signals sent when the child dies.
- * in exit.c or in signal.c.
- */
-
-/*
- * Determines which flags the user has access to [1 = access, 0 = no access].
- * Prohibits changing ID(21), VIP(20), VIF(19), VM(17), IOPL(12-13), IF(9).
- * Also masks reserved bits (63-22, 15, 5, 3, 1).
- */
-#define FLAG_MASK 0x54dd5UL
-
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure the single step bit is not set.
- */
-void ptrace_disable(struct task_struct *child)
-{
-	user_disable_single_step(child);
-}
-
-static unsigned long *pt_regs_access(struct pt_regs *regs, unsigned long offset)
-{
-	BUILD_BUG_ON(offsetof(struct pt_regs, r15) != 0);
-	return &regs->r15 + (offset / sizeof(regs->r15));
-}
-
-static int putreg(struct task_struct *child,
-	unsigned long regno, unsigned long value)
-{
-	struct pt_regs *regs = task_pt_regs(child);
-	switch (regno) {
-	case offsetof(struct user_regs_struct,fs):
-		if (value && (value & 3) != 3)
-			return -EIO;
-		child->thread.fsindex = value & 0xffff;
-		if (child == current)
-			loadsegment(fs, child->thread.fsindex);
-		return 0;
-	case offsetof(struct user_regs_struct,gs):
-		if (value && (value & 3) != 3)
-			return -EIO;
-		child->thread.gsindex = value & 0xffff;
-		if (child == current)
-			load_gs_index(child->thread.gsindex);
-		return 0;
-	case offsetof(struct user_regs_struct,ds):
-		if (value && (value & 3) != 3)
-			return -EIO;
-		child->thread.ds = value & 0xffff;
-		if (child == current)
-			loadsegment(ds, child->thread.ds);
-		return 0;
-	case offsetof(struct user_regs_struct,es):
-		if (value && (value & 3) != 3)
-			return -EIO;
-		child->thread.es = value & 0xffff;
-		if (child == current)
-			loadsegment(es, child->thread.es);
-		return 0;
-	case offsetof(struct user_regs_struct,ss):
-		if ((value & 3) != 3)
-			return -EIO;
-		value &= 0xffff;
-		return 0;
-	case offsetof(struct user_regs_struct,fs_base):
-		if (value >= TASK_SIZE_OF(child))
-			return -EIO;
-		/*
-		 * When changing the segment base, use do_arch_prctl
-		 * to set either thread.fs or thread.fsindex and the
-		 * corresponding GDT slot.
-		 */
-		if (child->thread.fs != value)
-			return do_arch_prctl(child, ARCH_SET_FS, value);
-		return 0;
-	case offsetof(struct user_regs_struct,gs_base):
-		/*
-		 * Exactly the same here as the %fs handling above.
-		 */
-		if (value >= TASK_SIZE_OF(child))
-			return -EIO;
-		if (child->thread.gs != value)
-			return do_arch_prctl(child, ARCH_SET_GS, value);
-		return 0;
-	case offsetof(struct user_regs_struct,flags):
-		value &= FLAG_MASK;
-		/*
-		 * If the user value contains TF, mark that
-		 * it was not "us" (the debugger) that set it.
-		 * If not, make sure it stays set if we had.
-		 */
-		if (value & X86_EFLAGS_TF)
-			clear_tsk_thread_flag(child, TIF_FORCED_TF);
-		else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
-			value |= X86_EFLAGS_TF;
-		value |= regs->flags & ~FLAG_MASK;
-		break;
-	case offsetof(struct user_regs_struct,cs):
-		if ((value & 3) != 3)
-			return -EIO;
-		value &= 0xffff;
-		break;
-	}
-	*pt_regs_access(regs, regno) = value;
-	return 0;
-}
-
-static unsigned long getreg(struct task_struct *child, unsigned long regno)
-{
-	struct pt_regs *regs = task_pt_regs(child);
-	unsigned long val;
-	unsigned int seg;
-	switch (regno) {
-	case offsetof(struct user_regs_struct, fs):
-		if (child == current) {
-			/* Older gas can't assemble movq %?s,%r?? */
-			asm("movl %%fs,%0" : "=r" (seg));
-			return seg;
-		}
-		return child->thread.fsindex;
-	case offsetof(struct user_regs_struct, gs):
-		if (child == current) {
-			asm("movl %%gs,%0" : "=r" (seg));
-			return seg;
-		}
-		return child->thread.gsindex;
-	case offsetof(struct user_regs_struct, ds):
-		if (child == current) {
-			asm("movl %%ds,%0" : "=r" (seg));
-			return seg;
-		}
-		return child->thread.ds;
-	case offsetof(struct user_regs_struct, es):
-		if (child == current) {
-			asm("movl %%es,%0" : "=r" (seg));
-			return seg;
-		}
-		return child->thread.es;
-	case offsetof(struct user_regs_struct, fs_base):
-		/*
-		 * do_arch_prctl may have used a GDT slot instead of
-		 * the MSR.  To userland, it appears the same either
-		 * way, except the %fs segment selector might not be 0.
-		 */
-		if (child->thread.fs != 0)
-			return child->thread.fs;
-		seg = child->thread.fsindex;
-		if (child == current)
-			asm("movl %%fs,%0" : "=r" (seg));
-		if (seg != FS_TLS_SEL)
-			return 0;
-		return get_desc_base(&child->thread.tls_array[FS_TLS]);
-	case offsetof(struct user_regs_struct, gs_base):
-		/*
-		 * Exactly the same here as the %fs handling above.
-		 */
-		if (child->thread.gs != 0)
-			return child->thread.gs;
-		seg = child->thread.gsindex;
-		if (child == current)
-			asm("movl %%gs,%0" : "=r" (seg));
-		if (seg != GS_TLS_SEL)
-			return 0;
-		return get_desc_base(&child->thread.tls_array[GS_TLS]);
-	case offsetof(struct user_regs_struct, flags):
-		/*
-		 * If the debugger set TF, hide it from the readout.
-		 */
-		val = regs->flags;
-		if (test_tsk_thread_flag(child, TIF_IA32))
-			val &= 0xffffffff;
-		if (test_tsk_thread_flag(child, TIF_FORCED_TF))
-			val &= ~X86_EFLAGS_TF;
-		return val;
-	default:
-		val = *pt_regs_access(regs, regno);
-		if (test_tsk_thread_flag(child, TIF_IA32))
-			val &= 0xffffffff;
-		return val;
-	}
-
-}
-
-unsigned long ptrace_get_debugreg(struct task_struct *child, int n)
-{
-	switch (n) {
-	case 0:		return child->thread.debugreg0;
-	case 1:		return child->thread.debugreg1;
-	case 2:		return child->thread.debugreg2;
-	case 3:		return child->thread.debugreg3;
-	case 6:		return child->thread.debugreg6;
-	case 7:		return child->thread.debugreg7;
-	}
-	return 0;
-}
-
-int ptrace_set_debugreg(struct task_struct *child, int n, unsigned long data)
-{
-	int i;
-
-	if (n < 4) {
-		int dsize = test_tsk_thread_flag(child, TIF_IA32) ? 3 : 7;
-		if (unlikely(data >= TASK_SIZE_OF(child) - dsize))
-			return -EIO;
-	}
-
-	switch (n) {
-	case 0:		child->thread.debugreg0 = data; break;
-	case 1:		child->thread.debugreg1 = data; break;
-	case 2:		child->thread.debugreg2 = data; break;
-	case 3:		child->thread.debugreg3 = data; break;
-
-	case 6:
-		if (data >> 32)
-			return -EIO;
-		child->thread.debugreg6 = data;
-		break;
-
-	case 7:
-		/*
-		 * See ptrace_32.c for an explanation of this awkward check.
-		 */
-		data &= ~DR_CONTROL_RESERVED;
-		for (i = 0; i < 4; i++)
-			if ((0x5554 >> ((data >> (16 + 4*i)) & 0xf)) & 1)
-				return -EIO;
-		child->thread.debugreg7 = data;
-		if (data)
-			set_tsk_thread_flag(child, TIF_DEBUG);
-		else
-			clear_tsk_thread_flag(child, TIF_DEBUG);
-		break;
-	}
-
-	return 0;
-}
-
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
-{
-	long ret;
-	unsigned ui;
-
-	switch (request) {
-	/* when I and D space are separate, these will need to be fixed. */
-	case PTRACE_PEEKTEXT: /* read word at location addr. */
-	case PTRACE_PEEKDATA:
-		ret = generic_ptrace_peekdata(child, addr, data);
-		break;
-
-	/* read the word at location addr in the USER area. */
-	case PTRACE_PEEKUSR: {
-		unsigned long tmp;
-
-		ret = -EIO;
-		if ((addr & 7) ||
-		    addr > sizeof(struct user) - 7)
-			break;
-
-		tmp = 0;
-		if (addr < sizeof(struct user_regs_struct))
-			tmp = getreg(child, addr);
-		else if (addr >= offsetof(struct user, u_debugreg[0])) {
-			addr -= offsetof(struct user, u_debugreg[0]);
-			tmp = ptrace_get_debugreg(child, addr / sizeof(long));
-		}
-
-		ret = put_user(tmp,(unsigned long __user *) data);
-		break;
-	}
-
-	/* when I and D space are separate, this will have to be fixed. */
-	case PTRACE_POKETEXT: /* write the word at location addr. */
-	case PTRACE_POKEDATA:
-		ret = generic_ptrace_pokedata(child, addr, data);
-		break;
-
-	case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
-		ret = -EIO;
-		if ((addr & 7) ||
-		    addr > sizeof(struct user) - 7)
-			break;
-
-		if (addr < sizeof(struct user_regs_struct))
-			ret = putreg(child, addr, data);
-		else if (addr >= offsetof(struct user, u_debugreg[0])) {
-			addr -= offsetof(struct user, u_debugreg[0]);
-			ret = ptrace_set_debugreg(child,
-						  addr / sizeof(long), data);
-		}
-		break;
-
-#ifdef CONFIG_IA32_EMULATION
-		/* This makes only sense with 32bit programs. Allow a
-		   64bit debugger to fully examine them too. Better
-		   don't use it against 64bit processes, use
-		   PTRACE_ARCH_PRCTL instead. */
-	case PTRACE_GET_THREAD_AREA:
-		if (addr < 0)
-			return -EIO;
-		ret = do_get_thread_area(child, addr,
-					 (struct user_desc __user *) data);
-
-		break;
-	case PTRACE_SET_THREAD_AREA:
-		if (addr < 0)
-			return -EIO;
-		ret = do_set_thread_area(child, addr,
-					 (struct user_desc __user *) data, 0);
-		break;
-#endif
-		/* normal 64bit interface to access TLS data.
-		   Works just like arch_prctl, except that the arguments
-		   are reversed. */
-	case PTRACE_ARCH_PRCTL:
-		ret = do_arch_prctl(child, data, addr);
-		break;
-
-	case PTRACE_GETREGS: { /* Get all gp regs from the child. */
-	  	if (!access_ok(VERIFY_WRITE, (unsigned __user *)data,
-			       sizeof(struct user_regs_struct))) {
-			ret = -EIO;
-			break;
-		}
-		ret = 0;
-		for (ui = 0; ui < sizeof(struct user_regs_struct); ui += sizeof(long)) {
-			ret |= __put_user(getreg(child, ui),(unsigned long __user *) data);
-			data += sizeof(long);
-		}
-		break;
-	}
-
-	case PTRACE_SETREGS: { /* Set all gp regs in the child. */
-		unsigned long tmp;
-	  	if (!access_ok(VERIFY_READ, (unsigned __user *)data,
-			       sizeof(struct user_regs_struct))) {
-			ret = -EIO;
-			break;
-		}
-		ret = 0;
-		for (ui = 0; ui < sizeof(struct user_regs_struct); ui += sizeof(long)) {
-			ret = __get_user(tmp, (unsigned long __user *) data);
-			if (ret)
-				break;
-			ret = putreg(child, ui, tmp);
-			if (ret)
-				break;
-			data += sizeof(long);
-		}
-		break;
-	}
-
-	case PTRACE_GETFPREGS: { /* Get the child extended FPU state. */
-		if (!access_ok(VERIFY_WRITE, (unsigned __user *)data,
-			       sizeof(struct user_i387_struct))) {
-			ret = -EIO;
-			break;
-		}
-		ret = get_fpregs((struct user_i387_struct __user *)data, child);
-		break;
-	}
-
-	case PTRACE_SETFPREGS: { /* Set the child extended FPU state. */
-		if (!access_ok(VERIFY_READ, (unsigned __user *)data,
-			       sizeof(struct user_i387_struct))) {
-			ret = -EIO;
-			break;
-		}
-		set_stopped_child_used_math(child);
-		ret = set_fpregs(child, (struct user_i387_struct __user *)data);
-		break;
-	}
-
-	default:
-		ret = ptrace_request(child, request, addr, data);
-		break;
-	}
-	return ret;
-}
-
-static void syscall_trace(struct pt_regs *regs)
-{
-
-#if 0
-	printk("trace %s ip %lx sp %lx ax %d origrax %d caller %lx tiflags %x ptrace %x\n",
-	       current->comm,
-	       regs->ip, regs->sp, regs->ax, regs->orig_ax, __builtin_return_address(0),
-	       current_thread_info()->flags, current->ptrace);
-#endif
-
-	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-				? 0x80 : 0));
-	/*
-	 * this isn't the same as continuing with a signal, but it will do
-	 * for normal use.  strace only continues with a signal if the
-	 * stopping signal is not SIGTRAP.  -brl
-	 */
-	if (current->exit_code) {
-		send_sig(current->exit_code, current, 1);
-		current->exit_code = 0;
-	}
-}
-
-asmlinkage void syscall_trace_enter(struct pt_regs *regs)
-{
-	/* do the secure computing check first */
-	secure_computing(regs->orig_ax);
-
-	if (test_thread_flag(TIF_SYSCALL_TRACE)
-	    && (current->ptrace & PT_PTRACED))
-		syscall_trace(regs);
-
-	if (unlikely(current->audit_context)) {
-		if (test_thread_flag(TIF_IA32)) {
-			audit_syscall_entry(AUDIT_ARCH_I386,
-					    regs->orig_ax,
-					    regs->bx, regs->cx,
-					    regs->dx, regs->si);
-		} else {
-			audit_syscall_entry(AUDIT_ARCH_X86_64,
-					    regs->orig_ax,
-					    regs->di, regs->si,
-					    regs->dx, regs->r10);
-		}
-	}
-}
-
-asmlinkage void syscall_trace_leave(struct pt_regs *regs)
-{
-	if (unlikely(current->audit_context))
-		audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax);
-
-	if ((test_thread_flag(TIF_SYSCALL_TRACE)
-	     || test_thread_flag(TIF_SINGLESTEP))
-	    && (current->ptrace & PT_PTRACED))
-		syscall_trace(regs);
-}
-- 
cgit v1.2.3-59-g8ed1b


From faca62273b602ab482fb7d3d940dbf41ef08b00e Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:31:02 +0100
Subject: x86: use generic register name in the thread and tss structures

This changes size-specific register names (eip/rip, esp/rsp, etc.) to
generic names in the thread and tss structures.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/asm-offsets_32.c |  4 ++--
 arch/x86/kernel/cpu/common.c     |  2 +-
 arch/x86/kernel/doublefault_32.c | 15 ++++++++-------
 arch/x86/kernel/entry_32.S       |  6 +++---
 arch/x86/kernel/paravirt_32.c    |  2 +-
 arch/x86/kernel/process_32.c     | 12 ++++++------
 arch/x86/kernel/process_64.c     | 16 ++++++++--------
 arch/x86/kernel/smpboot_32.c     |  8 ++++----
 arch/x86/kernel/smpboot_64.c     |  6 +++---
 arch/x86/kernel/traps_32.c       |  6 +++---
 arch/x86/kernel/traps_64.c       |  4 ++--
 arch/x86/kernel/vm86_32.c        | 16 ++++++++--------
 arch/x86/kernel/vmi_32.c         | 10 +++++-----
 arch/x86/lguest/boot.c           |  6 +++---
 arch/x86/vdso/vdso32-setup.c     |  4 ++--
 arch/x86/xen/enlighten.c         |  6 +++---
 arch/x86/xen/smp.c               |  4 ++--
 drivers/lguest/x86/core.c        |  4 ++--
 include/asm-x86/paravirt.h       |  6 +++---
 include/asm-x86/processor_32.h   | 37 +++++++++++++++++--------------------
 include/asm-x86/processor_64.h   | 20 ++++++++++----------
 include/asm-x86/system_32.h      |  4 ++--
 include/asm-x86/system_64.h      |  2 +-
 23 files changed, 99 insertions(+), 101 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index 4fc24a61f431..415313556708 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -101,8 +101,8 @@ void foo(void)
 	OFFSET(pbe_orig_address, pbe, orig_address);
 	OFFSET(pbe_next, pbe, next);
 
-	/* Offset from the sysenter stack to tss.esp0 */
-	DEFINE(TSS_sysenter_esp0, offsetof(struct tss_struct, x86_tss.esp0) -
+	/* Offset from the sysenter stack to tss.sp0 */
+	DEFINE(TSS_sysenter_sp0, offsetof(struct tss_struct, x86_tss.sp0) -
 		 sizeof(struct tss_struct));
 
 	DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 5db2a163bf4b..235cd615b89d 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -691,7 +691,7 @@ void __cpuinit cpu_init(void)
 		BUG();
 	enter_lazy_tlb(&init_mm, curr);
 
-	load_esp0(t, thread);
+	load_sp0(t, thread);
 	set_tss_desc(cpu,t);
 	load_TR_desc();
 	load_LDT(&init_mm.context);
diff --git a/arch/x86/kernel/doublefault_32.c b/arch/x86/kernel/doublefault_32.c
index 40978af630e7..cc19a3ea403a 100644
--- a/arch/x86/kernel/doublefault_32.c
+++ b/arch/x86/kernel/doublefault_32.c
@@ -35,12 +35,13 @@ static void doublefault_fn(void)
 		if (ptr_ok(tss)) {
 			struct i386_hw_tss *t = (struct i386_hw_tss *)tss;
 
-			printk(KERN_EMERG "eip = %08lx, esp = %08lx\n", t->eip, t->esp);
+			printk(KERN_EMERG "eip = %08lx, esp = %08lx\n",
+			       t->ip, t->sp);
 
 			printk(KERN_EMERG "eax = %08lx, ebx = %08lx, ecx = %08lx, edx = %08lx\n",
-				t->eax, t->ebx, t->ecx, t->edx);
+				t->ax, t->bx, t->cx, t->dx);
 			printk(KERN_EMERG "esi = %08lx, edi = %08lx\n",
-				t->esi, t->edi);
+				t->si, t->di);
 		}
 	}
 
@@ -50,15 +51,15 @@ static void doublefault_fn(void)
 
 struct tss_struct doublefault_tss __cacheline_aligned = {
 	.x86_tss = {
-		.esp0		= STACK_START,
+		.sp0		= STACK_START,
 		.ss0		= __KERNEL_DS,
 		.ldt		= 0,
 		.io_bitmap_base	= INVALID_IO_BITMAP_OFFSET,
 
-		.eip		= (unsigned long) doublefault_fn,
+		.ip		= (unsigned long) doublefault_fn,
 		/* 0x2 bit is always set */
-		.eflags		= X86_EFLAGS_SF | 0x2,
-		.esp		= STACK_START,
+		.flags		= X86_EFLAGS_SF | 0x2,
+		.sp		= STACK_START,
 		.es		= __USER_DS,
 		.cs		= __KERNEL_CS,
 		.ss		= __KERNEL_DS,
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 153bb87a4eea..6a474e1028c7 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -288,7 +288,7 @@ ENTRY(ia32_sysenter_target)
 	CFI_SIGNAL_FRAME
 	CFI_DEF_CFA esp, 0
 	CFI_REGISTER esp, ebp
-	movl TSS_sysenter_esp0(%esp),%esp
+	movl TSS_sysenter_sp0(%esp),%esp
 sysenter_past_esp:
 	/*
 	 * No need to follow this irqs on/off section: the syscall
@@ -743,7 +743,7 @@ END(device_not_available)
  * that sets up the real kernel stack. Check here, since we can't
  * allow the wrong stack to be used.
  *
- * "TSS_sysenter_esp0+12" is because the NMI/debug handler will have
+ * "TSS_sysenter_sp0+12" is because the NMI/debug handler will have
  * already pushed 3 words if it hits on the sysenter instruction:
  * eflags, cs and eip.
  *
@@ -755,7 +755,7 @@ END(device_not_available)
 	cmpw $__KERNEL_CS,4(%esp);		\
 	jne ok;					\
 label:						\
-	movl TSS_sysenter_esp0+offset(%esp),%esp;	\
+	movl TSS_sysenter_sp0+offset(%esp),%esp;	\
 	CFI_DEF_CFA esp, 0;			\
 	CFI_UNDEFINED eip;			\
 	pushfl;					\
diff --git a/arch/x86/kernel/paravirt_32.c b/arch/x86/kernel/paravirt_32.c
index 706b0562ea40..f4e3a8e01cf2 100644
--- a/arch/x86/kernel/paravirt_32.c
+++ b/arch/x86/kernel/paravirt_32.c
@@ -382,7 +382,7 @@ struct pv_cpu_ops pv_cpu_ops = {
 	.write_ldt_entry = write_dt_entry,
 	.write_gdt_entry = write_dt_entry,
 	.write_idt_entry = write_dt_entry,
-	.load_esp0 = native_load_esp0,
+	.load_sp0 = native_load_sp0,
 
 	.irq_enable_syscall_ret = native_irq_enable_syscall_ret,
 	.iret = native_iret,
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 3744cf63682c..add3bf34e205 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -75,7 +75,7 @@ EXPORT_PER_CPU_SYMBOL(cpu_number);
  */
 unsigned long thread_saved_pc(struct task_struct *tsk)
 {
-	return ((unsigned long *)tsk->thread.esp)[3];
+	return ((unsigned long *)tsk->thread.sp)[3];
 }
 
 /*
@@ -488,10 +488,10 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 	childregs->ax = 0;
 	childregs->sp = sp;
 
-	p->thread.esp = (unsigned long) childregs;
-	p->thread.esp0 = (unsigned long) (childregs+1);
+	p->thread.sp = (unsigned long) childregs;
+	p->thread.sp0 = (unsigned long) (childregs+1);
 
-	p->thread.eip = (unsigned long) ret_from_fork;
+	p->thread.ip = (unsigned long) ret_from_fork;
 
 	savesegment(gs,p->thread.gs);
 
@@ -718,7 +718,7 @@ struct task_struct fastcall * __switch_to(struct task_struct *prev_p, struct tas
 	/*
 	 * Reload esp0.
 	 */
-	load_esp0(tss, next);
+	load_sp0(tss, next);
 
 	/*
 	 * Save away %gs. No need to save %fs, as it was saved on the
@@ -851,7 +851,7 @@ unsigned long get_wchan(struct task_struct *p)
 	if (!p || p == current || p->state == TASK_RUNNING)
 		return 0;
 	stack_page = (unsigned long)task_stack_page(p);
-	sp = p->thread.esp;
+	sp = p->thread.sp;
 	if (!stack_page || sp < stack_page || sp > top_esp+stack_page)
 		return 0;
 	/* include/asm-i386/system.h:switch_to() pushes bp last. */
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index efbb1a2eab97..238193822e23 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -493,9 +493,9 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 	if (sp == ~0UL)
 		childregs->sp = (unsigned long)childregs;
 
-	p->thread.rsp = (unsigned long) childregs;
-	p->thread.rsp0 = (unsigned long) (childregs+1);
-	p->thread.userrsp = me->thread.userrsp; 
+	p->thread.sp = (unsigned long) childregs;
+	p->thread.sp0 = (unsigned long) (childregs+1);
+	p->thread.usersp = me->thread.usersp;
 
 	set_tsk_thread_flag(p, TIF_FORK);
 
@@ -607,7 +607,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	/*
 	 * Reload esp0, LDT and the page table pointer:
 	 */
-	tss->rsp0 = next->rsp0;
+	tss->sp0 = next->sp0;
 
 	/* 
 	 * Switch DS and ES.
@@ -666,8 +666,8 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	/* 
 	 * Switch the PDA and FPU contexts.
 	 */
-	prev->userrsp = read_pda(oldrsp); 
-	write_pda(oldrsp, next->userrsp); 
+	prev->usersp = read_pda(oldrsp);
+	write_pda(oldrsp, next->usersp);
 	write_pda(pcurrent, next_p); 
 
 	write_pda(kernelstack,
@@ -769,9 +769,9 @@ unsigned long get_wchan(struct task_struct *p)
 	if (!p || p == current || p->state==TASK_RUNNING)
 		return 0; 
 	stack = (unsigned long)task_stack_page(p);
-	if (p->thread.rsp < stack || p->thread.rsp > stack+THREAD_SIZE)
+	if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE)
 		return 0;
-	fp = *(u64 *)(p->thread.rsp);
+	fp = *(u64 *)(p->thread.sp);
 	do { 
 		if (fp < (unsigned long)stack ||
 		    fp > (unsigned long)stack+THREAD_SIZE)
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 3566191832b3..0f294d6e22cf 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -454,7 +454,7 @@ void __devinit initialize_secondary(void)
 		"movl %0,%%esp\n\t"
 		"jmp *%1"
 		:
-		:"m" (current->thread.esp),"m" (current->thread.eip));
+		:"m" (current->thread.sp),"m" (current->thread.ip));
 }
 
 /* Static state in head.S used to set up a CPU */
@@ -753,7 +753,7 @@ static inline struct task_struct * __cpuinit alloc_idle_task(int cpu)
 		/* initialize thread_struct.  we really want to avoid destroy
 		 * idle tread
 		 */
-		idle->thread.esp = (unsigned long)task_pt_regs(idle);
+		idle->thread.sp = (unsigned long)task_pt_regs(idle);
 		init_idle(idle, cpu);
 		return idle;
 	}
@@ -798,7 +798,7 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu)
  	per_cpu(current_task, cpu) = idle;
 	early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
 
-	idle->thread.eip = (unsigned long) start_secondary;
+	idle->thread.ip = (unsigned long) start_secondary;
 	/* start_eip had better be page-aligned! */
 	start_eip = setup_trampoline();
 
@@ -808,7 +808,7 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu)
 	/* So we see what's up   */
 	printk("Booting processor %d/%d ip %lx\n", cpu, apicid, start_eip);
 	/* Stack for startup_32 can be just as for start_secondary onwards */
-	stack_start.sp = (void *) idle->thread.esp;
+	stack_start.sp = (void *) idle->thread.sp;
 
 	irq_ctx_init(cpu);
 
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index ac1089f2b917..c3f2736ba530 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -577,7 +577,7 @@ static int __cpuinit do_boot_cpu(int cpu, int apicid)
 	c_idle.idle = get_idle_for_cpu(cpu);
 
 	if (c_idle.idle) {
-		c_idle.idle->thread.rsp = (unsigned long) (((struct pt_regs *)
+		c_idle.idle->thread.sp = (unsigned long) (((struct pt_regs *)
 			(THREAD_SIZE +  task_stack_page(c_idle.idle))) - 1);
 		init_idle(c_idle.idle, cpu);
 		goto do_rest;
@@ -613,8 +613,8 @@ do_rest:
 
 	start_rip = setup_trampoline();
 
-	init_rsp = c_idle.idle->thread.rsp;
-	per_cpu(init_tss,cpu).rsp0 = init_rsp;
+	init_rsp = c_idle.idle->thread.sp;
+	per_cpu(init_tss,cpu).sp0 = init_rsp;
 	initial_code = start_secondary;
 	clear_tsk_thread_flag(c_idle.idle, TIF_FORK);
 
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 27713553cc59..57491942cc4e 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -163,7 +163,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 		unsigned long dummy;
 		stack = &dummy;
 		if (task != current)
-			stack = (unsigned long *)task->thread.esp;
+			stack = (unsigned long *)task->thread.sp;
 	}
 
 #ifdef CONFIG_FRAME_POINTER
@@ -173,7 +173,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 			asm ("movl %%ebp, %0" : "=r" (bp) : );
 		} else {
 			/* bp is the last reg pushed by switch_to */
-			bp = *(unsigned long *) task->thread.esp;
+			bp = *(unsigned long *) task->thread.sp;
 		}
 	}
 #endif
@@ -253,7 +253,7 @@ static void show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
 
 	if (sp == NULL) {
 		if (task)
-			sp = (unsigned long*)task->thread.esp;
+			sp = (unsigned long*)task->thread.sp;
 		else
 			sp = (unsigned long *)&sp;
 	}
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index f7fecf9d47c3..965f2cc3a013 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -230,7 +230,7 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
 		unsigned long dummy;
 		stack = &dummy;
 		if (tsk && tsk != current)
-			stack = (unsigned long *)tsk->thread.rsp;
+			stack = (unsigned long *)tsk->thread.sp;
 	}
 
 	/*
@@ -366,7 +366,7 @@ _show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *sp)
 
 	if (sp == NULL) {
 		if (tsk)
-			sp = (unsigned long *)tsk->thread.rsp;
+			sp = (unsigned long *)tsk->thread.sp;
 		else
 			sp = (unsigned long *)&sp;
 	}
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 980e85b90091..e85bb44265cb 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -147,10 +147,10 @@ struct pt_regs * fastcall save_v86_state(struct kernel_vm86_regs * regs)
 	}
 
 	tss = &per_cpu(init_tss, get_cpu());
-	current->thread.esp0 = current->thread.saved_esp0;
+	current->thread.sp0 = current->thread.saved_sp0;
 	current->thread.sysenter_cs = __KERNEL_CS;
-	load_esp0(tss, &current->thread);
-	current->thread.saved_esp0 = 0;
+	load_sp0(tss, &current->thread);
+	current->thread.saved_sp0 = 0;
 	put_cpu();
 
 	ret = KVM86->regs32;
@@ -207,7 +207,7 @@ asmlinkage int sys_vm86old(struct pt_regs regs)
 	int tmp, ret = -EPERM;
 
 	tsk = current;
-	if (tsk->thread.saved_esp0)
+	if (tsk->thread.saved_sp0)
 		goto out;
 	tmp = copy_vm86_regs_from_user(&info.regs, &v86->regs,
 				       offsetof(struct kernel_vm86_struct, vm86plus) -
@@ -256,7 +256,7 @@ asmlinkage int sys_vm86(struct pt_regs regs)
 
 	/* we come here only for functions VM86_ENTER, VM86_ENTER_NO_BYPASS */
 	ret = -EPERM;
-	if (tsk->thread.saved_esp0)
+	if (tsk->thread.saved_sp0)
 		goto out;
 	v86 = (struct vm86plus_struct __user *)regs.cx;
 	tmp = copy_vm86_regs_from_user(&info.regs, &v86->regs,
@@ -318,15 +318,15 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
  * Save old state, set default return value (%ax) to 0
  */
 	info->regs32->ax = 0;
-	tsk->thread.saved_esp0 = tsk->thread.esp0;
+	tsk->thread.saved_sp0 = tsk->thread.sp0;
 	tsk->thread.saved_fs = info->regs32->fs;
 	savesegment(gs, tsk->thread.saved_gs);
 
 	tss = &per_cpu(init_tss, get_cpu());
-	tsk->thread.esp0 = (unsigned long) &info->VM86_TSS_ESP0;
+	tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0;
 	if (cpu_has_sep)
 		tsk->thread.sysenter_cs = 0;
-	load_esp0(tss, &tsk->thread);
+	load_sp0(tss, &tsk->thread);
 	put_cpu();
 
 	tsk->thread.screen_bitmap = info->screen_bitmap;
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 599b6f2ed562..4cfda7dbe90f 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -62,7 +62,7 @@ static struct {
 	void (*cpuid)(void /* non-c */);
 	void (*_set_ldt)(u32 selector);
 	void (*set_tr)(u32 selector);
-	void (*set_kernel_stack)(u32 selector, u32 esp0);
+	void (*set_kernel_stack)(u32 selector, u32 sp0);
 	void (*allocate_page)(u32, u32, u32, u32, u32);
 	void (*release_page)(u32, u32);
 	void (*set_pte)(pte_t, pte_t *, unsigned);
@@ -214,17 +214,17 @@ static void vmi_set_tr(void)
 	vmi_ops.set_tr(GDT_ENTRY_TSS*sizeof(struct desc_struct));
 }
 
-static void vmi_load_esp0(struct tss_struct *tss,
+static void vmi_load_sp0(struct tss_struct *tss,
 				   struct thread_struct *thread)
 {
-	tss->x86_tss.esp0 = thread->esp0;
+	tss->x86_tss.sp0 = thread->sp0;
 
 	/* This can only happen when SEP is enabled, no need to test "SEP"arately */
 	if (unlikely(tss->x86_tss.ss1 != thread->sysenter_cs)) {
 		tss->x86_tss.ss1 = thread->sysenter_cs;
 		wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0);
 	}
-	vmi_ops.set_kernel_stack(__KERNEL_DS, tss->x86_tss.esp0);
+	vmi_ops.set_kernel_stack(__KERNEL_DS, tss->x86_tss.sp0);
 }
 
 static void vmi_flush_tlb_user(void)
@@ -793,7 +793,7 @@ static inline int __init activate_vmi(void)
 	para_fill(pv_cpu_ops.write_ldt_entry, WriteLDTEntry);
 	para_fill(pv_cpu_ops.write_gdt_entry, WriteGDTEntry);
 	para_fill(pv_cpu_ops.write_idt_entry, WriteIDTEntry);
-	para_wrap(pv_cpu_ops.load_esp0, vmi_load_esp0, set_kernel_stack, UpdateKernelStack);
+	para_wrap(pv_cpu_ops.load_sp0, vmi_load_sp0, set_kernel_stack, UpdateKernelStack);
 	para_fill(pv_cpu_ops.set_iopl_mask, SetIOPLMask);
 	para_fill(pv_cpu_ops.io_delay, IODelay);
 
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index ea46d05853bb..c751e3c03e85 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -755,10 +755,10 @@ static void lguest_time_init(void)
  * segment), the privilege level (we're privilege level 1, the Host is 0 and
  * will not tolerate us trying to use that), the stack pointer, and the number
  * of pages in the stack. */
-static void lguest_load_esp0(struct tss_struct *tss,
+static void lguest_load_sp0(struct tss_struct *tss,
 				     struct thread_struct *thread)
 {
-	lazy_hcall(LHCALL_SET_STACK, __KERNEL_DS|0x1, thread->esp0,
+	lazy_hcall(LHCALL_SET_STACK, __KERNEL_DS|0x1, thread->sp0,
 		   THREAD_SIZE/PAGE_SIZE);
 }
 
@@ -957,7 +957,7 @@ __init void lguest_init(void)
 	pv_cpu_ops.cpuid = lguest_cpuid;
 	pv_cpu_ops.load_idt = lguest_load_idt;
 	pv_cpu_ops.iret = lguest_iret;
-	pv_cpu_ops.load_esp0 = lguest_load_esp0;
+	pv_cpu_ops.load_sp0 = lguest_load_sp0;
 	pv_cpu_ops.load_tr_desc = lguest_load_tr_desc;
 	pv_cpu_ops.set_ldt = lguest_set_ldt;
 	pv_cpu_ops.load_tls = lguest_load_tls;
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index d97a6d7d062b..e0feb66a2408 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -243,9 +243,9 @@ void enable_sep_cpu(void)
 	}
 
 	tss->x86_tss.ss1 = __KERNEL_CS;
-	tss->x86_tss.esp1 = sizeof(struct tss_struct) + (unsigned long) tss;
+	tss->x86_tss.sp1 = sizeof(struct tss_struct) + (unsigned long) tss;
 	wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0);
-	wrmsr(MSR_IA32_SYSENTER_ESP, tss->x86_tss.esp1, 0);
+	wrmsr(MSR_IA32_SYSENTER_ESP, tss->x86_tss.sp1, 0);
 	wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) ia32_sysenter_target, 0);
 	put_cpu();	
 }
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 29517faaa735..d81e8d709102 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -499,11 +499,11 @@ static void xen_write_gdt_entry(struct desc_struct *dt, int entry,
 	preempt_enable();
 }
 
-static void xen_load_esp0(struct tss_struct *tss,
+static void xen_load_sp0(struct tss_struct *tss,
 			  struct thread_struct *thread)
 {
 	struct multicall_space mcs = xen_mc_entry(0);
-	MULTI_stack_switch(mcs.mc, __KERNEL_DS, thread->esp0);
+	MULTI_stack_switch(mcs.mc, __KERNEL_DS, thread->sp0);
 	xen_mc_issue(PARAVIRT_LAZY_CPU);
 }
 
@@ -968,7 +968,7 @@ static const struct pv_cpu_ops xen_cpu_ops __initdata = {
 	.write_ldt_entry = xen_write_ldt_entry,
 	.write_gdt_entry = xen_write_gdt_entry,
 	.write_idt_entry = xen_write_idt_entry,
-	.load_esp0 = xen_load_esp0,
+	.load_sp0 = xen_load_sp0,
 
 	.set_iopl_mask = xen_set_iopl_mask,
 	.io_delay = xen_io_delay,
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 8e1234e14559..aafc54437403 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -239,10 +239,10 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
 	ctxt->gdt_ents      = ARRAY_SIZE(gdt->gdt);
 
 	ctxt->user_regs.cs = __KERNEL_CS;
-	ctxt->user_regs.esp = idle->thread.esp0 - sizeof(struct pt_regs);
+	ctxt->user_regs.esp = idle->thread.sp0 - sizeof(struct pt_regs);
 
 	ctxt->kernel_ss = __KERNEL_DS;
-	ctxt->kernel_sp = idle->thread.esp0;
+	ctxt->kernel_sp = idle->thread.sp0;
 
 	ctxt->event_callback_cs     = __KERNEL_CS;
 	ctxt->event_callback_eip    = (unsigned long)xen_hypervisor_callback;
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index 96d0fd07c57d..44adb00e1490 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -94,7 +94,7 @@ static void copy_in_guest_info(struct lguest *lg, struct lguest_pages *pages)
 	/* Set up the two "TSS" members which tell the CPU what stack to use
 	 * for traps which do directly into the Guest (ie. traps at privilege
 	 * level 1). */
-	pages->state.guest_tss.esp1 = lg->esp1;
+	pages->state.guest_tss.sp1 = lg->esp1;
 	pages->state.guest_tss.ss1 = lg->ss1;
 
 	/* Copy direct-to-Guest trap entries. */
@@ -416,7 +416,7 @@ void __init lguest_arch_host_init(void)
 		/* We know where we want the stack to be when the Guest enters
 		 * the switcher: in pages->regs.  The stack grows upwards, so
 		 * we start it at the end of that structure. */
-		state->guest_tss.esp0 = (long)(&pages->regs + 1);
+		state->guest_tss.sp0 = (long)(&pages->regs + 1);
 		/* And this is the GDT entry to use for the stack: we keep a
 		 * couple of special LGUEST entries. */
 		state->guest_tss.ss0 = LGUEST_DS;
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index be7b934f6c54..d1780e32722e 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -101,7 +101,7 @@ struct pv_cpu_ops {
 				int entrynum, u32 low, u32 high);
 	void (*write_idt_entry)(struct desc_struct *,
 				int entrynum, u32 low, u32 high);
-	void (*load_esp0)(struct tss_struct *tss, struct thread_struct *t);
+	void (*load_sp0)(struct tss_struct *tss, struct thread_struct *t);
 
 	void (*set_iopl_mask)(unsigned mask);
 
@@ -449,10 +449,10 @@ static inline int paravirt_enabled(void)
 	return pv_info.paravirt_enabled;
 }
 
-static inline void load_esp0(struct tss_struct *tss,
+static inline void load_sp0(struct tss_struct *tss,
 			     struct thread_struct *thread)
 {
-	PVOP_VCALL2(pv_cpu_ops.load_esp0, tss, thread);
+	PVOP_VCALL2(pv_cpu_ops.load_sp0, tss, thread);
 }
 
 #define ARCH_SETUP			pv_init_ops.arch_setup();
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index d50a4b48d441..6846cc346400 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -292,20 +292,17 @@ struct thread_struct;
 /* This is the TSS defined by the hardware. */
 struct i386_hw_tss {
 	unsigned short	back_link,__blh;
-	unsigned long	esp0;
+	unsigned long	sp0;
 	unsigned short	ss0,__ss0h;
-	unsigned long	esp1;
+	unsigned long	sp1;
 	unsigned short	ss1,__ss1h;	/* ss1 is used to cache MSR_IA32_SYSENTER_CS */
-	unsigned long	esp2;
+	unsigned long	sp2;
 	unsigned short	ss2,__ss2h;
 	unsigned long	__cr3;
-	unsigned long	eip;
-	unsigned long	eflags;
-	unsigned long	eax,ecx,edx,ebx;
-	unsigned long	esp;
-	unsigned long	ebp;
-	unsigned long	esi;
-	unsigned long	edi;
+	unsigned long	ip;
+	unsigned long	flags;
+	unsigned long	ax, cx, dx, bx;
+	unsigned long	sp, bp, si, di;
 	unsigned short	es, __esh;
 	unsigned short	cs, __csh;
 	unsigned short	ss, __ssh;
@@ -346,10 +343,10 @@ struct tss_struct {
 struct thread_struct {
 /* cached TLS descriptors. */
 	struct desc_struct tls_array[GDT_ENTRY_TLS_ENTRIES];
-	unsigned long	esp0;
+	unsigned long	sp0;
 	unsigned long	sysenter_cs;
-	unsigned long	eip;
-	unsigned long	esp;
+	unsigned long	ip;
+	unsigned long	sp;
 	unsigned long	fs;
 	unsigned long	gs;
 /* Hardware debugging registers */
@@ -366,7 +363,7 @@ struct thread_struct {
 /* virtual 86 mode info */
 	struct vm86_struct __user * vm86_info;
 	unsigned long		screen_bitmap;
-	unsigned long		v86flags, v86mask, saved_esp0;
+	unsigned long		v86flags, v86mask, saved_sp0;
 	unsigned int		saved_fs, saved_gs;
 /* IO permissions */
 	unsigned long	*io_bitmap_ptr;
@@ -378,7 +375,7 @@ struct thread_struct {
 };
 
 #define INIT_THREAD  {							\
-	.esp0 = sizeof(init_stack) + (long)&init_stack,			\
+	.sp0 = sizeof(init_stack) + (long)&init_stack,			\
 	.vm86_info = NULL,						\
 	.sysenter_cs = __KERNEL_CS,					\
 	.io_bitmap_ptr = NULL,						\
@@ -393,7 +390,7 @@ struct thread_struct {
  */
 #define INIT_TSS  {							\
 	.x86_tss = {							\
-		.esp0		= sizeof(init_stack) + (long)&init_stack, \
+		.sp0		= sizeof(init_stack) + (long)&init_stack, \
 		.ss0		= __KERNEL_DS,				\
 		.ss1		= __KERNEL_CS,				\
 		.io_bitmap_base	= INVALID_IO_BITMAP_OFFSET,		\
@@ -503,9 +500,9 @@ static inline void rep_nop(void)
 
 #define cpu_relax()	rep_nop()
 
-static inline void native_load_esp0(struct tss_struct *tss, struct thread_struct *thread)
+static inline void native_load_sp0(struct tss_struct *tss, struct thread_struct *thread)
 {
-	tss->x86_tss.esp0 = thread->esp0;
+	tss->x86_tss.sp0 = thread->sp0;
 	/* This can only happen when SEP is enabled, no need to test "SEP"arately */
 	if (unlikely(tss->x86_tss.ss1 != thread->sysenter_cs)) {
 		tss->x86_tss.ss1 = thread->sysenter_cs;
@@ -585,9 +582,9 @@ static inline void native_set_iopl_mask(unsigned mask)
 #define paravirt_enabled() 0
 #define __cpuid native_cpuid
 
-static inline void load_esp0(struct tss_struct *tss, struct thread_struct *thread)
+static inline void load_sp0(struct tss_struct *tss, struct thread_struct *thread)
 {
-	native_load_esp0(tss, thread);
+	native_load_sp0(tss, thread);
 }
 
 /*
diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h
index 797770113e6d..0780f3e3fdfe 100644
--- a/include/asm-x86/processor_64.h
+++ b/include/asm-x86/processor_64.h
@@ -177,9 +177,9 @@ union i387_union {
 
 struct tss_struct {
 	u32 reserved1;
-	u64 rsp0;	
-	u64 rsp1;
-	u64 rsp2;
+	u64 sp0;
+	u64 sp1;
+	u64 sp2;
 	u64 reserved2;
 	u64 ist[7];
 	u32 reserved3;
@@ -216,9 +216,9 @@ DECLARE_PER_CPU(struct orig_ist, orig_ist);
 #endif
 
 struct thread_struct {
-	unsigned long	rsp0;
-	unsigned long	rsp;
-	unsigned long 	userrsp;	/* Copy from PDA */ 
+	unsigned long	sp0;
+	unsigned long	sp;
+	unsigned long 	usersp;	/* Copy from PDA */
 	unsigned long	fs;
 	unsigned long	gs;
 	unsigned short	es, ds, fsindex, gsindex;	
@@ -245,11 +245,11 @@ struct thread_struct {
 } __attribute__((aligned(16)));
 
 #define INIT_THREAD  { \
-	.rsp0 = (unsigned long)&init_stack + sizeof(init_stack) \
+	.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
 }
 
 #define INIT_TSS  { \
-	.rsp0 = (unsigned long)&init_stack + sizeof(init_stack) \
+	.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
 }
 
 #define INIT_MMAP \
@@ -293,10 +293,10 @@ extern long kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
  * Return saved PC of a blocked thread.
  * What is this good for? it will be always the scheduler or ret_from_fork.
  */
-#define thread_saved_pc(t) (*(unsigned long *)((t)->thread.rsp - 8))
+#define thread_saved_pc(t) (*(unsigned long *)((t)->thread.sp - 8))
 
 extern unsigned long get_wchan(struct task_struct *p);
-#define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.rsp0 - 1)
+#define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.sp0 - 1)
 #define KSTK_EIP(tsk) (task_pt_regs(tsk)->ip)
 #define KSTK_ESP(tsk) -1 /* sorry. doesn't work for syscall. */
 
diff --git a/include/asm-x86/system_32.h b/include/asm-x86/system_32.h
index db6283eb5e46..f5b3f77f5310 100644
--- a/include/asm-x86/system_32.h
+++ b/include/asm-x86/system_32.h
@@ -28,9 +28,9 @@ extern struct task_struct * FASTCALL(__switch_to(struct task_struct *prev, struc
 		     "1:\t"						\
 		     "popl %%ebp\n\t"					\
 		     "popfl"						\
-		     :"=m" (prev->thread.esp),"=m" (prev->thread.eip),	\
+		     :"=m" (prev->thread.sp),"=m" (prev->thread.ip),	\
 		      "=a" (last),"=S" (esi),"=D" (edi)			\
-		     :"m" (next->thread.esp),"m" (next->thread.eip),	\
+		     :"m" (next->thread.sp),"m" (next->thread.ip),	\
 		      "2" (prev), "d" (next));				\
 } while (0)
 
diff --git a/include/asm-x86/system_64.h b/include/asm-x86/system_64.h
index 6e9e4841a2da..3dcb217a7202 100644
--- a/include/asm-x86/system_64.h
+++ b/include/asm-x86/system_64.h
@@ -40,7 +40,7 @@
 		     RESTORE_CONTEXT						    \
 		     : "=a" (last)					  	  \
 		     : [next] "S" (next), [prev] "D" (prev),			  \
-		       [threadrsp] "i" (offsetof(struct task_struct, thread.rsp)), \
+		       [threadrsp] "i" (offsetof(struct task_struct, thread.sp)), \
 		       [ti_flags] "i" (offsetof(struct thread_info, flags)),\
 		       [tif_fork] "i" (TIF_FORK),			  \
 		       [thread_info] "i" (offsetof(struct task_struct, stack)), \
-- 
cgit v1.2.3-59-g8ed1b


From 2ba7deef09dad6662dc4fa8b275af8d0794fd9fc Mon Sep 17 00:00:00 2001
From: Len Brown <lenb@kernel.org>
Date: Wed, 30 Jan 2008 13:31:02 +0100
Subject: x86: 32-bit IOAPIC: de-fang IRQ compression

commit c434b7a6aedfe428ad17cd61b21b125a7b7a29ce
(x86: avoid wasting IRQs for PCI devices)
created a concept of "IRQ compression" on i386
to conserve IRQ numbers on systems with many
sparsely populated IO APICs.

The same scheme was also added to x86_64,
but later removed when x86_64 recieved an IRQ over-haul
that made it unnecessary -- including per-CPU
IRQ vectors that greatly increased the IRQ capacity
on the machine.

i386 has not received the analogous over-haul,
and thus a previous attempt to delete IRQ compression
from i386 was rejected on the theory that there may
exist machines that actually need it.  The fact is
that the author of IRQ compression patch was unable
to confirm the actual existence of such a system.

As a result, all i386 kernels with IOAPIC support
pay the following:

1. confusion

IRQ compression re-names the traditional IOAPIC
pin numbers (aka ACPI GSI's) into sequential IRQ #s:

ACPI: PCI Interrupt 0000:00:1c.0[A] -> GSI 20 (level, low) -> IRQ 16
ACPI: PCI Interrupt 0000:00:1c.1[B] -> GSI 21 (level, low) -> IRQ 17
ACPI: PCI Interrupt 0000:00:1c.2[C] -> GSI 22 (level, low) -> IRQ 18
ACPI: PCI Interrupt 0000:00:1c.3[D] -> GSI 23 (level, low) -> IRQ 19
ACPI: PCI Interrupt 0000:00:1c.4[A] -> GSI 20 (level, low) -> IRQ 16

This makes /proc/interrupts look different
depending on system configuration and device probe order.
It is also different than the x86_64 kernel running
on the exact same system.  As a result, programmers
get confused when comparing systems.

2. complexity

The IRQ code in Linux is already overly complex,
and IRQ compression makes it worse.  There have
already been two bug workarounds related to IRQ
compression -- the IRQ0 timer workaround and
the VIA PCI IRQ workaround.

3. size

All i386 kernels with IOAPIC support contain an int[4096] --
a 4 page array to contain the renamed IRQs.

So while the irq compression code on i386 should really
be deleted -- even before merging the x86_64 irq-overhaul,
this patch simply disables it on all high volume systems
to avoid problems #1 and #2 on most all i386 systems.

A large system with pin numbers >=64 will still have compression
to conserve limited IRQ numbers for sparse IOAPICS.  However,
the vast majority of the planet, those with only pin numbers < 64
will use an identity GSI -> IRQ mapping.

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
 arch/x86/kernel/mpparse_32.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/mpparse_32.c b/arch/x86/kernel/mpparse_32.c
index 22fc8d7dec11..bfcfc41f5607 100644
--- a/arch/x86/kernel/mpparse_32.c
+++ b/arch/x86/kernel/mpparse_32.c
@@ -1041,13 +1041,14 @@ void __init mp_config_acpi_legacy_irqs (void)
 }
 
 #define MAX_GSI_NUM	4096
+#define IRQ_COMPRESSION_START	64
 
 int mp_register_gsi(u32 gsi, int triggering, int polarity)
 {
 	int ioapic = -1;
 	int ioapic_pin = 0;
 	int idx, bit = 0;
-	static int pci_irq = 16;
+	static int pci_irq = IRQ_COMPRESSION_START;
 	/*
 	 * Mapping between Global System Interrups, which
 	 * represent all possible interrupts, and IRQs
@@ -1086,12 +1087,16 @@ int mp_register_gsi(u32 gsi, int triggering, int polarity)
 	if ((1<<bit) & mp_ioapic_routing[ioapic].pin_programmed[idx]) {
 		Dprintk(KERN_DEBUG "Pin %d-%d already programmed\n",
 			mp_ioapic_routing[ioapic].apic_id, ioapic_pin);
-		return gsi_to_irq[gsi];
+		return (gsi < IRQ_COMPRESSION_START ? gsi : gsi_to_irq[gsi]);
 	}
 
 	mp_ioapic_routing[ioapic].pin_programmed[idx] |= (1<<bit);
 
-	if (triggering == ACPI_LEVEL_SENSITIVE) {
+	/*
+	 * For GSI >= 64, use IRQ compression
+	 */
+	if ((gsi >= IRQ_COMPRESSION_START)
+		&& (triggering == ACPI_LEVEL_SENSITIVE)) {
 		/*
 		 * For PCI devices assign IRQs in order, avoiding gaps
 		 * due to unused I/O APIC pins.
-- 
cgit v1.2.3-59-g8ed1b


From 40842bf50e0719bcfe817fec2fe8b0b98dcdb244 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Wed, 30 Jan 2008 13:31:02 +0100
Subject: x86: use __PAGE_KERNEL* instead of _KERNPG_TABLE

This minor cleanup replaces _KERNPG_TABLE with the __PAGE_KERNEL* for 2MB PTEs
in the 64-bit memory initialization code. The __PAGE_KERNEL* defines are more
appropriate for PTEs.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_64.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 251eeb325ae3..3f8bf298dbb8 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -226,7 +226,7 @@ __meminit void *early_ioremap(unsigned long addr, unsigned long size)
 		vaddr += addr & ~PMD_MASK;
 		addr &= PMD_MASK;
 		for (i = 0; i < pmds; i++, addr += PMD_SIZE)
-			set_pmd(pmd + i,__pmd(addr | _KERNPG_TABLE | _PAGE_PSE));
+			set_pmd(pmd + i,__pmd(addr | __PAGE_KERNEL_LARGE_EXEC));
 		__flush_tlb();
 		return (void *)vaddr;
 	next:
@@ -270,7 +270,7 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end)
 		if (pmd_val(*pmd))
 			continue;
 
-		entry = _PAGE_NX|_PAGE_PSE|_KERNPG_TABLE|_PAGE_GLOBAL|address;
+		entry = __PAGE_KERNEL_LARGE|_PAGE_GLOBAL|address;
 		entry &= __supported_pte_mask;
 		set_pmd(pmd, __pmd(entry));
 	}
-- 
cgit v1.2.3-59-g8ed1b


From 3c2362e629cdc16ea7472c5f14b6c2076aba58db Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:31:03 +0100
Subject: x86: use def_bool where possible

Change occurances of:
	bool
	default X

to:
	def_bool X

Change ocurances of:
	bool "Foo"
	default X

to:
	def_bool X
	prompt "Foo"

Shows no difference in generated config for allmodconfig/allyesconfig.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig | 198 ++++++++++++++++++++++---------------------------------
 1 file changed, 77 insertions(+), 121 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index da98368f66af..fef944bb920e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -17,81 +17,63 @@ config X86_64
 
 ### Arch settings
 config X86
-	bool
-	default y
+	def_bool y
 
 config GENERIC_TIME
-	bool
-	default y
+	def_bool y
 
 config GENERIC_CMOS_UPDATE
-	bool
-	default y
+	def_bool y
 
 config CLOCKSOURCE_WATCHDOG
-	bool
-	default y
+	def_bool y
 
 config GENERIC_CLOCKEVENTS
-	bool
-	default y
+	def_bool y
 
 config GENERIC_CLOCKEVENTS_BROADCAST
-	bool
-	default y
+	def_bool y
 	depends on X86_64 || (X86_32 && X86_LOCAL_APIC)
 
 config LOCKDEP_SUPPORT
-	bool
-	default y
+	def_bool y
 
 config STACKTRACE_SUPPORT
-	bool
-	default y
+	def_bool y
 
 config SEMAPHORE_SLEEPERS
-	bool
-	default y
+	def_bool y
 
 config MMU
-	bool
-	default y
+	def_bool y
 
 config ZONE_DMA
-	bool
-	default y
+	def_bool y
 
 config QUICKLIST
-	bool
-	default X86_32
+	def_bool X86_32
 
 config SBUS
 	bool
 
 config GENERIC_ISA_DMA
-	bool
-	default y
+	def_bool y
 
 config GENERIC_IOMAP
-	bool
-	default y
+	def_bool y
 
 config GENERIC_BUG
-	bool
-	default y
+	def_bool y
 	depends on BUG
 
 config GENERIC_HWEIGHT
-	bool
-	default y
+	def_bool y
 
 config ARCH_MAY_HAVE_PC_FDC
-	bool
-	default y
+	def_bool y
 
 config DMI
-	bool
-	default y
+	def_bool y
 
 config RWSEM_GENERIC_SPINLOCK
 	def_bool !X86_XADD
@@ -303,8 +285,8 @@ config X86_VSMP
 endchoice
 
 config SCHED_NO_NO_OMIT_FRAME_POINTER
-	bool "Single-depth WCHAN output"
-	default y
+	def_bool y
+	prompt "Single-depth WCHAN output"
 	depends on X86_32
 	help
 	  Calculate simpler /proc/<PID>/wchan values. If this option
@@ -351,37 +333,31 @@ source "arch/x86/lguest/Kconfig"
 endif
 
 config ACPI_SRAT
-	bool
-	default y
+	def_bool y
 	depends on X86_32 && ACPI && NUMA && (X86_SUMMIT || X86_GENERICARCH)
 	select ACPI_NUMA
 
 config HAVE_ARCH_PARSE_SRAT
-       bool
-       default y
-       depends on ACPI_SRAT
+	def_bool y
+	depends on ACPI_SRAT
 
 config X86_SUMMIT_NUMA
-	bool
-	default y
+	def_bool y
 	depends on X86_32 && NUMA && (X86_SUMMIT || X86_GENERICARCH)
 
 config X86_CYCLONE_TIMER
-	bool
-	default y
+	def_bool y
 	depends on X86_32 && X86_SUMMIT || X86_GENERICARCH
 
 config ES7000_CLUSTERED_APIC
-	bool
-	default y
+	def_bool y
 	depends on SMP && X86_ES7000 && MPENTIUMIII
 
 source "arch/x86/Kconfig.cpu"
 
 config HPET_TIMER
-	bool
+	def_bool X86_64
 	prompt "HPET Timer Support" if X86_32
-	default X86_64
 	help
          Use the IA-PC HPET (High Precision Event Timer) to manage
          time in preference to the PIT and RTC, if a HPET is
@@ -399,9 +375,8 @@ config HPET_TIMER
          Choose N to continue using the legacy 8254 timer.
 
 config HPET_EMULATE_RTC
-	bool
+	def_bool y
 	depends on HPET_TIMER && RTC=y
-	default y
 
 # Mark as embedded because too many people got it wrong.
 # The code disables itself when not needed.
@@ -441,8 +416,8 @@ config CALGARY_IOMMU
 	  If unsure, say Y.
 
 config CALGARY_IOMMU_ENABLED_BY_DEFAULT
-	bool "Should Calgary be enabled by default?"
-	default y
+	def_bool y
+	prompt "Should Calgary be enabled by default?"
 	depends on CALGARY_IOMMU
 	help
 	  Should Calgary be enabled by default? if you choose 'y', Calgary
@@ -486,9 +461,9 @@ config SCHED_SMT
 	  N here.
 
 config SCHED_MC
-	bool "Multi-core scheduler support"
+	def_bool y
+	prompt "Multi-core scheduler support"
 	depends on (X86_64 && SMP) || (X86_32 && X86_HT)
-	default y
 	help
 	  Multi-core scheduler support improves the CPU scheduler's decision
 	  making when dealing with multi-core CPU chips at a cost of slightly
@@ -522,19 +497,16 @@ config X86_UP_IOAPIC
 	  an IO-APIC, then the kernel will still run with no slowdown at all.
 
 config X86_LOCAL_APIC
-	bool
+	def_bool y
 	depends on X86_64 || (X86_32 && (X86_UP_APIC || ((X86_VISWS || SMP) && !X86_VOYAGER) || X86_GENERICARCH))
-	default y
 
 config X86_IO_APIC
-	bool
+	def_bool y
 	depends on X86_64 || (X86_32 && (X86_UP_IOAPIC || (SMP && !(X86_VISWS || X86_VOYAGER)) || X86_GENERICARCH))
-	default y
 
 config X86_VISWS_APIC
-	bool
+	def_bool y
 	depends on X86_32 && X86_VISWS
-	default y
 
 config X86_MCE
 	bool "Machine Check Exception"
@@ -554,17 +526,17 @@ config X86_MCE
 	  the 386 and 486, so nearly everyone can say Y here.
 
 config X86_MCE_INTEL
-	bool "Intel MCE features"
+	def_bool y
+	prompt "Intel MCE features"
 	depends on X86_64 && X86_MCE && X86_LOCAL_APIC
-	default y
 	help
 	   Additional support for intel specific MCE features such as
 	   the thermal monitor.
 
 config X86_MCE_AMD
-	bool "AMD MCE features"
+	def_bool y
+	prompt "AMD MCE features"
 	depends on X86_64 && X86_MCE && X86_LOCAL_APIC
-	default y
 	help
 	   Additional support for AMD specific MCE features such as
 	   the DRAM Error Threshold.
@@ -637,9 +609,9 @@ config I8K
 	  Say N otherwise.
 
 config X86_REBOOTFIXUPS
-	bool "Enable X86 board specific fixups for reboot"
+	def_bool n
+	prompt "Enable X86 board specific fixups for reboot"
 	depends on X86_32 && X86
-	default n
 	---help---
 	  This enables chipset and/or board specific fixups to be done
 	  in order to get reboot to work correctly. This is only needed on
@@ -672,9 +644,8 @@ config MICROCODE
 	  module will be called microcode.
 
 config MICROCODE_OLD_INTERFACE
-	bool
+	def_bool y
 	depends on MICROCODE
-	default y
 
 config X86_MSR
 	tristate "/dev/cpu/*/msr - Model-specific register support"
@@ -798,13 +769,12 @@ config PAGE_OFFSET
 	depends on X86_32
 
 config HIGHMEM
-	bool
+	def_bool y
 	depends on X86_32 && (HIGHMEM64G || HIGHMEM4G)
-	default y
 
 config X86_PAE
-	bool "PAE (Physical Address Extension) Support"
-	default n
+	def_bool n
+	prompt "PAE (Physical Address Extension) Support"
 	depends on X86_32 && !HIGHMEM4G
 	select RESOURCES_64BIT
 	help
@@ -836,10 +806,10 @@ comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
 	depends on X86_32 && X86_SUMMIT && (!HIGHMEM64G || !ACPI)
 
 config K8_NUMA
-       bool "Old style AMD Opteron NUMA detection"
-       depends on X86_64 && NUMA && PCI
-       default y
-       help
+	def_bool y
+	prompt "Old style AMD Opteron NUMA detection"
+	depends on X86_64 && NUMA && PCI
+	help
 	 Enable K8 NUMA node topology detection.  You should say Y here if
 	 you have a multi processor AMD K8 system. This uses an old
 	 method to read the NUMA configuration directly from the builtin
@@ -847,10 +817,10 @@ config K8_NUMA
 	 instead, which also takes priority if both are compiled in.
 
 config X86_64_ACPI_NUMA
-	bool "ACPI NUMA detection"
+	def_bool y
+	prompt "ACPI NUMA detection"
 	depends on X86_64 && NUMA && ACPI && PCI
 	select ACPI_NUMA
-	default y
 	help
 	  Enable ACPI SRAT based node topology detection.
 
@@ -870,24 +840,20 @@ config NODES_SHIFT
 	depends on NEED_MULTIPLE_NODES
 
 config HAVE_ARCH_BOOTMEM_NODE
-	bool
+	def_bool y
 	depends on X86_32 && NUMA
-	default y
 
 config ARCH_HAVE_MEMORY_PRESENT
-	bool
+	def_bool y
 	depends on X86_32 && DISCONTIGMEM
-	default y
 
 config NEED_NODE_MEMMAP_SIZE
-	bool
+	def_bool y
 	depends on X86_32 && (DISCONTIGMEM || SPARSEMEM)
-	default y
 
 config HAVE_ARCH_ALLOC_REMAP
-	bool
+	def_bool y
 	depends on X86_32 && NUMA
-	default y
 
 config ARCH_FLATMEM_ENABLE
 	def_bool y
@@ -991,9 +957,9 @@ config MTRR
 	  See <file:Documentation/mtrr.txt> for more information.
 
 config EFI
-	bool "Boot from EFI support"
+	def_bool n
+	prompt "Boot from EFI support"
 	depends on X86_32 && ACPI
-	default n
 	---help---
 	This enables the kernel to boot on EFI platforms using
 	system configuration information passed to it from the firmware.
@@ -1009,9 +975,9 @@ config EFI
 	kernel should continue to boot on existing non-EFI platforms.
 
 config IRQBALANCE
-	bool "Enable kernel irq balancing"
+	def_bool y
+	prompt "Enable kernel irq balancing"
 	depends on X86_32 && SMP && X86_IO_APIC
-	default y
 	help
 	  The default yes will allow the kernel to do irq load balancing.
 	  Saying no will keep the kernel from doing irq load balancing.
@@ -1019,14 +985,13 @@ config IRQBALANCE
 # turning this on wastes a bunch of space.
 # Summit needs it only when NUMA is on
 config BOOT_IOREMAP
-	bool
+	def_bool y
 	depends on X86_32 && (((X86_SUMMIT || X86_GENERICARCH) && NUMA) || (X86 && EFI))
-	default y
 
 config SECCOMP
-	bool "Enable seccomp to safely compute untrusted bytecode"
+	def_bool y
+	prompt "Enable seccomp to safely compute untrusted bytecode"
 	depends on PROC_FS
-	default y
 	help
 	  This kernel feature is useful for number crunching applications
 	  that may need to compute untrusted bytecode during their
@@ -1193,8 +1158,8 @@ config HOTPLUG_CPU
 	  suspend.
 
 config COMPAT_VDSO
-	bool "Compat VDSO support"
-	default y
+	def_bool y
+	prompt "Compat VDSO support"
 	depends on X86_32 || IA32_EMULATION
 	help
 	  Map the 32-bit VDSO to the predictable old-style address too.
@@ -1219,9 +1184,8 @@ menu "Power management options"
 	depends on !X86_VOYAGER
 
 config ARCH_HIBERNATION_HEADER
-	bool
+	def_bool y
 	depends on X86_64 && HIBERNATION
-	default y
 
 source "kernel/power/Kconfig"
 
@@ -1414,25 +1378,21 @@ config PCI_GOANY
 endchoice
 
 config PCI_BIOS
-	bool
+	def_bool y
 	depends on X86_32 && !X86_VISWS && PCI && (PCI_GOBIOS || PCI_GOANY)
-	default y
 
 # x86-64 doesn't support PCI BIOS access from long mode so always go direct.
 config PCI_DIRECT
-	bool
+	def_bool y
 	depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY) || X86_VISWS)
-	default y
 
 config PCI_MMCONFIG
-	bool
+	def_bool y
 	depends on X86_32 && PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY)
-	default y
 
 config PCI_DOMAINS
-	bool
+	def_bool y
 	depends on PCI
-	default y
 
 config PCI_MMCONFIG
 	bool "Support mmconfig PCI config space access"
@@ -1449,9 +1409,9 @@ config DMAR
 	  remapping devices.
 
 config DMAR_GFX_WA
-	bool "Support for Graphics workaround"
+	def_bool y
+	prompt "Support for Graphics workaround"
 	depends on DMAR
-	default y
 	help
 	 Current Graphics drivers tend to use physical address
 	 for DMA and avoid using DMA APIs. Setting this config
@@ -1460,9 +1420,8 @@ config DMAR_GFX_WA
 	 to use physical addresses for DMA.
 
 config DMAR_FLOPPY_WA
-	bool
+	def_bool y
 	depends on DMAR
-	default y
 	help
 	 Floppy disk drivers are know to bypass DMA API calls
 	 thereby failing to work when IOMMU is enabled. This
@@ -1475,8 +1434,7 @@ source "drivers/pci/Kconfig"
 
 # x86_64 have no ISA slots, but do have ISA-style DMA.
 config ISA_DMA_API
-	bool
-	default y
+	def_bool y
 
 if X86_32
 
@@ -1542,9 +1500,9 @@ config SCx200HR_TIMER
 	  other workaround is idle=poll boot option.
 
 config GEODE_MFGPT_TIMER
-	bool "Geode Multi-Function General Purpose Timer (MFGPT) events"
+	def_bool y
+	prompt "Geode Multi-Function General Purpose Timer (MFGPT) events"
 	depends on MGEODE_LX && GENERIC_TIME && GENERIC_CLOCKEVENTS
-	default y
 	help
 	  This driver provides a clock event source based on the MFGPT
 	  timer(s) in the CS5535 and CS5536 companion chip for the geode.
@@ -1583,18 +1541,16 @@ config IA32_AOUT
          Support old a.out binaries in the 32bit emulation.
 
 config COMPAT
-	bool
+	def_bool y
 	depends on IA32_EMULATION
-	default y
 
 config COMPAT_FOR_U64_ALIGNMENT
 	def_bool COMPAT
 	depends on X86_64
 
 config SYSVIPC_COMPAT
-	bool
+	def_bool y
 	depends on X86_64 && COMPAT && SYSVIPC
-	default y
 
 endmenu
 
-- 
cgit v1.2.3-59-g8ed1b


From 6612538ca9b38f0f45d0aec2aae8992c43313705 Mon Sep 17 00:00:00 2001
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Date: Wed, 30 Jan 2008 13:31:03 +0100
Subject: x86: clean up process_32/64.c

White space and coding style clean up.
Make process_32/64.c similar.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_32.c |   6 +-
 arch/x86/kernel/process_64.c | 197 +++++++++++++++++++++----------------------
 2 files changed, 101 insertions(+), 102 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index add3bf34e205..5350763a2d03 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -142,7 +142,7 @@ EXPORT_SYMBOL(default_idle);
  * to poll the ->work.need_resched flag instead of waiting for the
  * cross-CPU IPI to arrive. Use this option with caution.
  */
-static void poll_idle (void)
+static void poll_idle(void)
 {
 	cpu_relax();
 }
@@ -493,7 +493,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 
 	p->thread.ip = (unsigned long) ret_from_fork;
 
-	savesegment(gs,p->thread.gs);
+	savesegment(gs, p->thread.gs);
 
 	tsk = current;
 	if (unlikely(test_tsk_thread_flag(tsk, TIF_IO_BITMAP))) {
@@ -571,7 +571,7 @@ void dump_thread(struct pt_regs * regs, struct user * dump)
 }
 EXPORT_SYMBOL(dump_thread);
 
-/* 
+/*
  * Capture the user space registers if the task is not running (in user space)
  */
 int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 238193822e23..4c4d8b3f046e 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -3,7 +3,7 @@
  *
  *  Pentium III FXSR, SSE support
  *	Gareth Hughes <gareth@valinux.com>, May 2000
- * 
+ *
  *  X86-64 port
  *	Andi Kleen.
  *
@@ -19,19 +19,19 @@
 #include <linux/cpu.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
+#include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/fs.h>
 #include <linux/elfcore.h>
 #include <linux/smp.h>
 #include <linux/slab.h>
 #include <linux/user.h>
-#include <linux/module.h>
 #include <linux/a.out.h>
 #include <linux/interrupt.h>
+#include <linux/utsname.h>
 #include <linux/delay.h>
+#include <linux/module.h>
 #include <linux/ptrace.h>
-#include <linux/utsname.h>
 #include <linux/random.h>
 #include <linux/notifier.h>
 #include <linux/kprobes.h>
@@ -129,54 +129,12 @@ static void default_idle(void)
  * to poll the ->need_resched flag instead of waiting for the
  * cross-CPU IPI to arrive. Use this option with caution.
  */
-static void poll_idle (void)
+static void poll_idle(void)
 {
 	local_irq_enable();
 	cpu_relax();
 }
 
-static void do_nothing(void *unused)
-{
-}
-
-void cpu_idle_wait(void)
-{
-	unsigned int cpu, this_cpu = get_cpu();
-	cpumask_t map, tmp = current->cpus_allowed;
-
-	set_cpus_allowed(current, cpumask_of_cpu(this_cpu));
-	put_cpu();
-
-	cpus_clear(map);
-	for_each_online_cpu(cpu) {
-		per_cpu(cpu_idle_state, cpu) = 1;
-		cpu_set(cpu, map);
-	}
-
-	__get_cpu_var(cpu_idle_state) = 0;
-
-	wmb();
-	do {
-		ssleep(1);
-		for_each_online_cpu(cpu) {
-			if (cpu_isset(cpu, map) &&
-					!per_cpu(cpu_idle_state, cpu))
-				cpu_clear(cpu, map);
-		}
-		cpus_and(map, map, cpu_online_map);
-		/*
-		 * We waited 1 sec, if a CPU still did not call idle
-		 * it may be because it is in idle and not waking up
-		 * because it has nothing to do.
-		 * Give all the remaining CPUS a kick.
-		 */
-		smp_call_function_mask(map, do_nothing, 0, 0);
-	} while (!cpus_empty(map));
-
-	set_cpus_allowed(current, tmp);
-}
-EXPORT_SYMBOL_GPL(cpu_idle_wait);
-
 #ifdef CONFIG_HOTPLUG_CPU
 DECLARE_PER_CPU(int, cpu_state);
 
@@ -247,6 +205,47 @@ void cpu_idle(void)
 	}
 }
 
+static void do_nothing(void *unused)
+{
+}
+
+void cpu_idle_wait(void)
+{
+	unsigned int cpu, this_cpu = get_cpu();
+	cpumask_t map, tmp = current->cpus_allowed;
+
+	set_cpus_allowed(current, cpumask_of_cpu(this_cpu));
+	put_cpu();
+
+	cpus_clear(map);
+	for_each_online_cpu(cpu) {
+		per_cpu(cpu_idle_state, cpu) = 1;
+		cpu_set(cpu, map);
+	}
+
+	__get_cpu_var(cpu_idle_state) = 0;
+
+	wmb();
+	do {
+		ssleep(1);
+		for_each_online_cpu(cpu) {
+			if (cpu_isset(cpu, map) && !per_cpu(cpu_idle_state, cpu))
+				cpu_clear(cpu, map);
+		}
+		cpus_and(map, map, cpu_online_map);
+		/*
+		 * We waited 1 sec, if a CPU still did not call idle
+		 * it may be because it is in idle and not waking up
+		 * because it has nothing to do.
+		 * Give all the remaining CPUS a kick.
+		 */
+		smp_call_function_mask(map, do_nothing, 0, 0);
+	} while (!cpus_empty(map));
+
+	set_cpus_allowed(current, tmp);
+}
+EXPORT_SYMBOL_GPL(cpu_idle_wait);
+
 /*
  * This uses new MONITOR/MWAIT instructions on P4 processors with PNI,
  * which can obviate IPI to trigger checking of need_resched.
@@ -300,7 +299,7 @@ void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
 	}
 }
 
-static int __init idle_setup (char *str)
+static int __init idle_setup(char *str)
 {
 	if (!strcmp(str, "poll")) {
 		printk("using polling idle threads.\n");
@@ -315,13 +314,13 @@ static int __init idle_setup (char *str)
 }
 early_param("idle", idle_setup);
 
-/* Prints also some state that isn't saved in the pt_regs */ 
+/* Prints also some state that isn't saved in the pt_regs */
 void __show_regs(struct pt_regs * regs)
 {
 	unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L, fs, gs, shadowgs;
 	unsigned long d0, d1, d2, d3, d6, d7;
-	unsigned int fsindex,gsindex;
-	unsigned int ds,cs,es; 
+	unsigned int fsindex, gsindex;
+	unsigned int ds, cs, es;
 
 	printk("\n");
 	print_modules();
@@ -390,7 +389,7 @@ void exit_thread(void)
 	struct task_struct *me = current;
 	struct thread_struct *t = &me->thread;
 
-	if (me->thread.io_bitmap_ptr) { 
+	if (me->thread.io_bitmap_ptr) {
 		struct tss_struct *tss = &per_cpu(init_tss, get_cpu());
 
 		kfree(t->io_bitmap_ptr);
@@ -426,7 +425,7 @@ void flush_thread(void)
 	tsk->thread.debugreg3 = 0;
 	tsk->thread.debugreg6 = 0;
 	tsk->thread.debugreg7 = 0;
-	memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array));	
+	memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array));
 	/*
 	 * Forget coprocessor state..
 	 */
@@ -449,7 +448,7 @@ void release_thread(struct task_struct *dead_task)
 
 static inline void set_32bit_tls(struct task_struct *t, int tls, u32 addr)
 {
-	struct user_desc ud = { 
+	struct user_desc ud = {
 		.base_addr = addr,
 		.limit = 0xfffff,
 		.seg_32bit = 1,
@@ -458,8 +457,8 @@ static inline void set_32bit_tls(struct task_struct *t, int tls, u32 addr)
 	};
 	struct n_desc_struct *desc = (void *)t->thread.tls_array;
 	desc += tls;
-	desc->a = LDT_entry_a(&ud); 
-	desc->b = LDT_entry_b(&ud); 
+	desc->a = LDT_entry_a(&ud);
+	desc->b = LDT_entry_b(&ud);
 }
 
 static inline u32 read_32bit_tls(struct task_struct *t, int tls)
@@ -516,7 +515,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 		memcpy(p->thread.io_bitmap_ptr, me->thread.io_bitmap_ptr,
 				IO_BITMAP_BYTES);
 		set_tsk_thread_flag(p, TIF_IO_BITMAP);
-	} 
+	}
 
 	/*
 	 * Set a new TLS for the child thread?
@@ -544,11 +543,29 @@ out:
 /*
  * This special macro can be used to load a debugging register
  */
-#define loaddebug(thread,r) set_debugreg(thread->debugreg ## r, r)
+#define loaddebug(thread, r) set_debugreg(thread->debugreg ## r, r)
+
+/*
+ * Capture the user space registers if the task is not running (in user space)
+ */
+int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
+{
+	struct pt_regs *pp, ptregs;
+
+	pp = task_pt_regs(tsk);
+
+	ptregs = *pp;
+	ptregs.cs &= 0xffff;
+	ptregs.ss &= 0xffff;
+
+	elf_core_copy_regs(regs, &ptregs);
+
+	return 1;
+}
 
 static inline void __switch_to_xtra(struct task_struct *prev_p,
-			     	    struct task_struct *next_p,
-			     	    struct tss_struct *tss)
+				    struct task_struct *next_p,
+				    struct tss_struct *tss)
 {
 	struct thread_struct *prev, *next;
 
@@ -586,7 +603,7 @@ static inline void __switch_to_xtra(struct task_struct *prev_p,
 /*
  *	switch_to(x,y) should switch tasks from x to y.
  *
- * This could still be optimized: 
+ * This could still be optimized:
  * - fold all the options into a flag word and test it with a single test.
  * - could test fs/gs bitsliced
  *
@@ -597,7 +614,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 {
 	struct thread_struct *prev = &prev_p->thread,
 				 *next = &next_p->thread;
-	int cpu = smp_processor_id();  
+	int cpu = smp_processor_id();
 	struct tss_struct *tss = &per_cpu(init_tss, cpu);
 
 	/* we're going to use this soon, after a few expensive things */
@@ -700,7 +717,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 /*
  * sys_execve() executes a new program.
  */
-asmlinkage 
+asmlinkage
 long sys_execve(char __user *name, char __user * __user *argv,
 		char __user * __user *envp, struct pt_regs regs)
 {
@@ -721,12 +738,12 @@ void set_personality_64bit(void)
 	/* inherit personality from parent */
 
 	/* Make sure to be in 64bit mode */
-	clear_thread_flag(TIF_IA32); 
+	clear_thread_flag(TIF_IA32);
 
 	/* TBD: overwrites user setup. Should have two bits.
 	   But 64bit processes have always behaved this way,
 	   so it's not too bad. The main problem is just that
-   	   32bit childs are affected again. */
+	   32bit childs are affected again. */
 	current->personality &= ~READ_IMPLIES_EXEC;
 }
 
@@ -819,19 +836,19 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
 		/* Not strictly needed for fs, but do it for symmetry
 		   with gs */
 		if (addr >= TASK_SIZE_OF(task))
-			return -EPERM; 
+			return -EPERM;
 		cpu = get_cpu();
-		/* handle small bases via the GDT because that's faster to 
+		/* handle small bases via the GDT because that's faster to
 		   switch. */
-		if (addr <= 0xffffffff) { 
+		if (addr <= 0xffffffff) {
 			set_32bit_tls(task, FS_TLS, addr);
-			if (doit) { 
-				load_TLS(&task->thread, cpu); 
+			if (doit) {
+				load_TLS(&task->thread, cpu);
 				asm volatile("movl %0,%%fs" :: "r"(FS_TLS_SEL));
 			}
 			task->thread.fsindex = FS_TLS_SEL;
 			task->thread.fs = 0;
-		} else { 
+		} else {
 			task->thread.fsindex = 0;
 			task->thread.fs = addr;
 			if (doit) {
@@ -843,24 +860,24 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
 		}
 		put_cpu();
 		break;
-	case ARCH_GET_FS: { 
-		unsigned long base; 
+	case ARCH_GET_FS: {
+		unsigned long base;
 		if (task->thread.fsindex == FS_TLS_SEL)
 			base = read_32bit_tls(task, FS_TLS);
 		else if (doit)
 			rdmsrl(MSR_FS_BASE, base);
 		else
 			base = task->thread.fs;
-		ret = put_user(base, (unsigned long __user *)addr); 
-		break; 
+		ret = put_user(base, (unsigned long __user *)addr);
+		break;
 	}
-	case ARCH_GET_GS: { 
+	case ARCH_GET_GS: {
 		unsigned long base;
 		unsigned gsindex;
 		if (task->thread.gsindex == GS_TLS_SEL)
 			base = read_32bit_tls(task, GS_TLS);
 		else if (doit) {
- 			asm("movl %%gs,%0" : "=r" (gsindex));
+			asm("movl %%gs,%0" : "=r" (gsindex));
 			if (gsindex)
 				rdmsrl(MSR_KERNEL_GS_BASE, base);
 			else
@@ -868,39 +885,21 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
 		}
 		else
 			base = task->thread.gs;
-		ret = put_user(base, (unsigned long __user *)addr); 
+		ret = put_user(base, (unsigned long __user *)addr);
 		break;
 	}
 
 	default:
 		ret = -EINVAL;
 		break;
-	} 
+	}
 
-	return ret;	
-} 
+	return ret;
+}
 
 long sys_arch_prctl(int code, unsigned long addr)
 {
 	return do_arch_prctl(current, code, addr);
-} 
-
-/* 
- * Capture the user space registers if the task is not running (in user space)
- */
-int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
-{
-	struct pt_regs *pp, ptregs;
-
-	pp = task_pt_regs(tsk);
-
-	ptregs = *pp; 
-	ptregs.cs &= 0xffff;
-	ptregs.ss &= 0xffff;
-
-	elf_core_copy_regs(regs, &ptregs);
- 
-	return 1;
 }
 
 unsigned long arch_align_stack(unsigned long sp)
-- 
cgit v1.2.3-59-g8ed1b


From 96daa8cd53945a1220d2b2f4a44bc57f0cc46760 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:31:03 +0100
Subject: x86: use def_bool where possible in Kconfig.cpu

x86: Use def_bool where possible in Kconfig.cpu

Change occurances of:
	bool
	default X

to:
	def_bool X

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.cpu | 56 +++++++++++++++++++---------------------------------
 1 file changed, 20 insertions(+), 36 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 69e2ee44fdff..018d68e3184e 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -219,10 +219,10 @@ config MGEODEGX1
 	  Select this for a Geode GX1 (Cyrix MediaGX) chip.
 
 config MGEODE_LX
-       bool "Geode GX/LX"
+	bool "Geode GX/LX"
 	depends on X86_32
-       help
-         Select this for AMD Geode GX and LX processors.
+	help
+	  Select this for AMD Geode GX and LX processors.
 
 config MCYRIXIII
 	bool "CyrixIII/VIA-C3"
@@ -258,7 +258,7 @@ config MPSC
 	  Optimize for Intel Pentium 4, Pentium D and older Nocona/Dempsey
 	  Xeon CPUs with Intel 64bit which is compatible with x86-64.
 	  Note that the latest Xeons (Xeon 51xx and 53xx) are not based on the
-          Netburst core and shouldn't use this option. You can distinguish them
+	  Netburst core and shouldn't use this option. You can distinguish them
 	  using the cpu family field
 	  in /proc/cpuinfo. Family 15 is an older Xeon, Family 6 a newer one.
 
@@ -317,81 +317,66 @@ config X86_L1_CACHE_SHIFT
 	default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MVIAC7
 
 config X86_XADD
-	bool
+	def_bool y
 	depends on X86_32 && !M386
-	default y
 
 config X86_PPRO_FENCE
-	bool
+	def_bool y
 	depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 || MGEODEGX1
-	default y
 
 config X86_F00F_BUG
-	bool
+	def_bool y
 	depends on M586MMX || M586TSC || M586 || M486 || M386
-	default y
 
 config X86_WP_WORKS_OK
-	bool
+	def_bool y
 	depends on X86_32 && !M386
-	default y
 
 config X86_INVLPG
-	bool
+	def_bool y
 	depends on X86_32 && !M386
-	default y
 
 config X86_BSWAP
-	bool
+	def_bool y
 	depends on X86_32 && !M386
-	default y
 
 config X86_POPAD_OK
-	bool
+	def_bool y
 	depends on X86_32 && !M386
-	default y
 
 config X86_ALIGNMENT_16
-	bool
+	def_bool y
 	depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
-	default y
 
 config X86_GOOD_APIC
-	bool
+	def_bool y
 	depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON || MCORE2 || MVIAC7 || X86_64
-	default y
 
 config X86_INTEL_USERCOPY
-	bool
+	def_bool y
 	depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON || MCORE2
-	default y
 
 config X86_USE_PPRO_CHECKSUM
-	bool
+	def_bool y
 	depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 || MEFFICEON || MGEODE_LX || MCORE2
-	default y
 
 config X86_USE_3DNOW
-	bool
+	def_bool y
 	depends on (MCYRIXIII || MK7 || MGEODE_LX) && !UML
-	default y
 
 config X86_OOSTORE
-	bool
+	def_bool y
 	depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR
-	default y
 
 config X86_TSC
-	bool
+	def_bool y
 	depends on ((MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2) && !X86_NUMAQ) || X86_64
-	default y
 
 # this should be set for all -march=.. options where the compiler
 # generates cmov.
 config X86_CMOV
-	bool
+	def_bool y
 	depends on (MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7)
-	default y
 
 config X86_MINIMUM_CPU_FAMILY
 	int
@@ -400,6 +385,5 @@ config X86_MINIMUM_CPU_FAMILY
 	default "3"
 
 config X86_DEBUGCTLMSR
-	bool
+	def_bool y
 	depends on !(M586MMX || M586TSC || M586 || M486 || M386)
-	default y
-- 
cgit v1.2.3-59-g8ed1b


From fe58fc8f40257948c2f9fc5a56863077ce3138f0 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:03 +0100
Subject: x86: wipe out traditional opt from x86_64 Makefile

Among other things, using -traditional as a gcc option stops us from
using macro token pasting, which is a feature we heavily rely on.

There was still a use of -traditional in arch/x86/kernel/Makefile_64,
which this patch removes.

I don't see any problems building kernels in my x86_64 box without
-traditional.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile_64 | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index b41e838dc788..19af64e1a3fc 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -4,7 +4,6 @@
 
 extra-y 	:= head_64.o head64.o init_task.o vmlinux.lds
 CPPFLAGS_vmlinux.lds += -Ux86_64
-EXTRA_AFLAGS	:= -traditional
 
 obj-y	:= process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
 		time_64.o ioport_64.o ldt.o setup_64.o i8259_64.o sys_x86_64.o \
-- 
cgit v1.2.3-59-g8ed1b


From 16e2011be67b8625c1c600f9742c2279be3c0c68 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:03 +0100
Subject: x86: allow sched clock to be overridden by paravirt

This patch turns the sched_clock into native_sched_clock.
sched clock becomes a weak symbol, which can then give its
place to a paravirt definition.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/tsc_64.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/tsc_64.c b/arch/x86/kernel/tsc_64.c
index 32edd2c50e94..204a9080af04 100644
--- a/arch/x86/kernel/tsc_64.c
+++ b/arch/x86/kernel/tsc_64.c
@@ -63,7 +63,7 @@ static void set_cyc2ns_scale(unsigned long cpu_khz, int cpu)
 	local_irq_restore(flags);
 }
 
-unsigned long long sched_clock(void)
+unsigned long long native_sched_clock(void)
 {
 	unsigned long a = 0;
 
@@ -77,6 +77,19 @@ unsigned long long sched_clock(void)
 	return cycles_2_ns(a);
 }
 
+/* We need to define a real function for sched_clock, to override the
+   weak default version */
+#ifdef CONFIG_PARAVIRT
+unsigned long long sched_clock(void)
+{
+	return paravirt_sched_clock();
+}
+#else
+unsigned long long
+sched_clock(void) __attribute__((alias("native_sched_clock")));
+#endif
+
+
 static int tsc_unstable;
 
 inline int check_tsc_unstable(void)
-- 
cgit v1.2.3-59-g8ed1b


From 4e87173eacfd0d798aeeba14026893797826bc93 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:03 +0100
Subject: x86: split get_cycles_sync

This patch splits get_cycles_sync() into  __get_cycles_sync(),
and the rdtscll part. Paravirt guests cannot issue rdtscl directly,
as it involves a function call in vdso area.

So, using the __get_cycles_sync() base, we introduce vget_cycles_sync,
which then calls the native version of rdtscll. Ideally, however, a guest
should define its own clocksource, together with a vread function

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/tsc_64.c |  2 +-
 include/asm-x86/tsc.h    | 37 +++++++++++++++++++++++++++++++++----
 2 files changed, 34 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/tsc_64.c b/arch/x86/kernel/tsc_64.c
index 204a9080af04..3723401c4593 100644
--- a/arch/x86/kernel/tsc_64.c
+++ b/arch/x86/kernel/tsc_64.c
@@ -306,7 +306,7 @@ static cycle_t read_tsc(void)
 
 static cycle_t __vsyscall_fn vread_tsc(void)
 {
-	cycle_t ret = (cycle_t)get_cycles_sync();
+	cycle_t ret = (cycle_t)vget_cycles_sync();
 	return ret;
 }
 
diff --git a/include/asm-x86/tsc.h b/include/asm-x86/tsc.h
index d7b1c4e7a108..9b7d264897fa 100644
--- a/include/asm-x86/tsc.h
+++ b/include/asm-x86/tsc.h
@@ -33,14 +33,14 @@ static inline cycles_t get_cycles(void)
 }
 
 /* Like get_cycles, but make sure the CPU is synchronized. */
-static __always_inline cycles_t get_cycles_sync(void)
+static __always_inline cycles_t __get_cycles_sync(void)
 {
 	unsigned long long ret;
 	unsigned eax, edx;
 
 	/*
-  	 * Use RDTSCP if possible; it is guaranteed to be synchronous
- 	 * and doesn't cause a VMEXIT on Hypervisors
+	 * Use RDTSCP if possible; it is guaranteed to be synchronous
+	 * and doesn't cause a VMEXIT on Hypervisors
 	 */
 	alternative_io(ASM_NOP3, ".byte 0x0f,0x01,0xf9", X86_FEATURE_RDTSCP,
 		       ASM_OUTPUT2("=a" (eax), "=d" (edx)),
@@ -55,11 +55,40 @@ static __always_inline cycles_t get_cycles_sync(void)
 	 */
 	alternative_io("cpuid", ASM_NOP2, X86_FEATURE_SYNC_RDTSC,
 			  "=a" (eax), "0" (1) : "ebx","ecx","edx","memory");
-	rdtscll(ret);
 
+	return 0;
+}
+
+static __always_inline cycles_t get_cycles_sync(void)
+{
+	unsigned long long ret;
+	ret = __get_cycles_sync();
+	if (!ret)
+		rdtscll(ret);
 	return ret;
 }
 
+#ifdef CONFIG_PARAVIRT
+/*
+ * For paravirt guests, some functionalities are executed through function
+ * pointers in the various pvops structures.
+ * These function pointers exist inside the kernel and can not
+ * be accessed by user space. To avoid this, we make a copy of the
+ * get_cycles_sync (called in kernel) but force the use of native_read_tsc.
+ * Ideally, the guest should set up it's own clock and vread
+ */
+static __always_inline long long vget_cycles_sync(void)
+{
+	unsigned long long ret;
+	ret = __get_cycles_sync();
+	if (!ret)
+		ret = native_read_tsc();
+	return ret;
+}
+#else
+# define vget_cycles_sync() get_cycles_sync()
+#endif
+
 extern void tsc_init(void);
 extern void mark_tsc_unstable(char *reason);
 extern int unsynchronized_tsc(void);
-- 
cgit v1.2.3-59-g8ed1b


From 8f12dea6135d0a55b151dcb4c6bbe211f5f8d35d Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:06 +0100
Subject: x86: introduce native_read_tscp

Targetting paravirt, this patch introduces native_read_tscp, in
place of rdtscp() macro. When in a paravirt guest, this will
involve a function call, and thus, cannot be done in the vdso area.
These users then have to call the native version directly

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/vsyscall_64.c |  4 ++--
 arch/x86/vdso/vgetcpu.c       |  4 ++--
 include/asm-x86/msr.h         | 29 +++++++++++++++++++++--------
 3 files changed, 25 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 018f7cf33790..c4c5e765cd2c 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -190,7 +190,7 @@ time_t __vsyscall(1) vtime(time_t *t)
 long __vsyscall(2)
 vgetcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache)
 {
-	unsigned int dummy, p;
+	unsigned int p;
 	unsigned long j = 0;
 
 	/* Fast cache - only recompute value once per jiffies and avoid
@@ -205,7 +205,7 @@ vgetcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache)
 		p = tcache->blob[1];
 	} else if (__vgetcpu_mode == VGETCPU_RDTSCP) {
 		/* Load per CPU data from RDTSCP */
-		rdtscp(dummy, dummy, p);
+		native_read_tscp(&p);
 	} else {
 		/* Load per CPU data from GDT */
 		asm("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG));
diff --git a/arch/x86/vdso/vgetcpu.c b/arch/x86/vdso/vgetcpu.c
index 3b1ae1abfba9..c8097f17f8a9 100644
--- a/arch/x86/vdso/vgetcpu.c
+++ b/arch/x86/vdso/vgetcpu.c
@@ -15,11 +15,11 @@
 
 long __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
 {
-	unsigned int dummy, p;
+	unsigned int p;
 
 	if (*vdso_vgetcpu_mode == VGETCPU_RDTSCP) {
 		/* Load per CPU data from RDTSCP */
-		rdtscp(dummy, dummy, p);
+		native_read_tscp(&p);
 	} else {
 		/* Load per CPU data from GDT */
 		asm("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG));
diff --git a/include/asm-x86/msr.h b/include/asm-x86/msr.h
index 0648b2d57a38..b6262e99fc8e 100644
--- a/include/asm-x86/msr.h
+++ b/include/asm-x86/msr.h
@@ -7,6 +7,27 @@
 # include <linux/types.h>
 #endif
 
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+static inline unsigned long long native_read_tscp(int *aux)
+{
+	unsigned long low, high;
+	asm volatile (".byte 0x0f,0x01,0xf9"
+		      : "=a" (low), "=d" (high), "=c" (*aux));
+	return low | ((u64)high >> 32);
+}
+
+#define rdtscp(low, high, aux)						\
+       do {                                                            \
+		unsigned long long _val = native_read_tscp(&(aux));     \
+		(low) = (u32)_val;                                      \
+		(high) = (u32)(_val >> 32);                             \
+       } while (0)
+
+#define rdtscpll(val, aux) (val) = native_read_tscp(&(aux))
+#endif
+#endif
+
 #ifdef __i386__
 
 #ifdef __KERNEL__
@@ -178,8 +199,6 @@ static inline int wrmsr_safe(u32 __msr, u32 __low, u32 __high)
 #define rdtscl(low) \
      __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx")
 
-#define rdtscp(low,high,aux) \
-     __asm__ __volatile__ (".byte 0x0f,0x01,0xf9" : "=a" (low), "=d" (high), "=c" (aux))
 
 #define rdtscll(val) do { \
      unsigned int __a,__d; \
@@ -187,12 +206,6 @@ static inline int wrmsr_safe(u32 __msr, u32 __low, u32 __high)
      (val) = ((unsigned long)__a) | (((unsigned long)__d)<<32); \
 } while(0)
 
-#define rdtscpll(val, aux) do { \
-     unsigned long __a, __d; \
-     __asm__ __volatile__ (".byte 0x0f,0x01,0xf9" : "=a" (__a), "=d" (__d), "=c" (aux)); \
-     (val) = (__d << 32) | __a; \
-} while (0)
-
 #define write_tsc(val1,val2) wrmsr(0x10, val1, val2)
 
 #define write_rdtscp_aux(val) wrmsr(0xc0000103, val, 0)
-- 
cgit v1.2.3-59-g8ed1b


From cc503c1b43e002e3f1fed70f46d947e2bf349bb6 Mon Sep 17 00:00:00 2001
From: Jiri Kosina <jkosina@suse.cz>
Date: Wed, 30 Jan 2008 13:31:07 +0100
Subject: x86: PIE executable randomization

main executable of (specially compiled/linked -pie/-fpie) ET_DYN binaries
onto a random address (in cases in which mmap() is allowed to perform a
randomization).

The code has been extraced from Ingo's exec-shield patch
http://people.redhat.com/mingo/exec-shield/

[akpm@linux-foundation.org: fix used-uninitialsied warning]
[kamezawa.hiroyu@jp.fujitsu.com: fixed ia32 ELF on x86_64 handling]

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Roland McGrath <roland@redhat.com>
Cc: Jakub Jelinek <jakub@redhat.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/ia64/ia32/binfmt_elf32.c |   2 +-
 arch/x86/kernel/sys_x86_64.c  |  98 ++++++++++++++++++++++++++++++++++
 arch/x86/mm/mmap_64.c         | 119 ++++++++++++++++++++++++++++++++++++------
 fs/binfmt_elf.c               | 107 +++++++++++++++++++++++++++++--------
 include/asm-x86/pgtable_64.h  |   1 +
 5 files changed, 287 insertions(+), 40 deletions(-)

(limited to 'arch')

diff --git a/arch/ia64/ia32/binfmt_elf32.c b/arch/ia64/ia32/binfmt_elf32.c
index 3e35987af458..2a662215359c 100644
--- a/arch/ia64/ia32/binfmt_elf32.c
+++ b/arch/ia64/ia32/binfmt_elf32.c
@@ -222,7 +222,7 @@ elf32_set_personality (void)
 }
 
 static unsigned long
-elf32_map (struct file *filep, unsigned long addr, struct elf_phdr *eppnt, int prot, int type)
+elf32_map (struct file *filep, unsigned long addr, struct elf_phdr *eppnt, int prot, int type, unsigned long unused)
 {
 	unsigned long pgoff = (eppnt->p_vaddr) & ~IA32_PAGE_MASK;
 
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 907942ee6e76..95485e63fd2f 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -12,6 +12,7 @@
 #include <linux/file.h>
 #include <linux/utsname.h>
 #include <linux/personality.h>
+#include <linux/random.h>
 
 #include <asm/uaccess.h>
 #include <asm/ia32.h>
@@ -65,6 +66,7 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
 			   unsigned long *end)
 {
 	if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT)) {
+		unsigned long new_begin;
 		/* This is usually used needed to map code in small
 		   model, so it needs to be in the first 31bit. Limit
 		   it to that.  This means we need to move the
@@ -74,6 +76,11 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
 		   of playground for now. -AK */ 
 		*begin = 0x40000000; 
 		*end = 0x80000000;		
+		if (current->flags & PF_RANDOMIZE) {
+			new_begin = randomize_range(*begin, *begin + 0x02000000, 0);
+			if (new_begin)
+				*begin = new_begin;
+		}
 	} else {
 		*begin = TASK_UNMAPPED_BASE;
 		*end = TASK_SIZE; 
@@ -143,6 +150,97 @@ full_search:
 	}
 }
 
+
+unsigned long
+arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+			  const unsigned long len, const unsigned long pgoff,
+			  const unsigned long flags)
+{
+	struct vm_area_struct *vma;
+	struct mm_struct *mm = current->mm;
+	unsigned long addr = addr0;
+
+	/* requested length too big for entire address space */
+	if (len > TASK_SIZE)
+		return -ENOMEM;
+
+	if (flags & MAP_FIXED)
+		return addr;
+
+	/* for MAP_32BIT mappings we force the legact mmap base */
+	if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT))
+		goto bottomup;
+
+	/* requesting a specific address */
+	if (addr) {
+		addr = PAGE_ALIGN(addr);
+		vma = find_vma(mm, addr);
+		if (TASK_SIZE - len >= addr &&
+				(!vma || addr + len <= vma->vm_start))
+			return addr;
+	}
+
+	/* check if free_area_cache is useful for us */
+	if (len <= mm->cached_hole_size) {
+ 	        mm->cached_hole_size = 0;
+ 		mm->free_area_cache = mm->mmap_base;
+ 	}
+
+	/* either no address requested or can't fit in requested address hole */
+	addr = mm->free_area_cache;
+
+	/* make sure it can fit in the remaining address space */
+	if (addr > len) {
+		vma = find_vma(mm, addr-len);
+		if (!vma || addr <= vma->vm_start)
+			/* remember the address as a hint for next time */
+			return (mm->free_area_cache = addr-len);
+	}
+
+	if (mm->mmap_base < len)
+		goto bottomup;
+
+	addr = mm->mmap_base-len;
+
+	do {
+		/*
+		 * Lookup failure means no vma is above this address,
+		 * else if new region fits below vma->vm_start,
+		 * return with success:
+		 */
+		vma = find_vma(mm, addr);
+		if (!vma || addr+len <= vma->vm_start)
+			/* remember the address as a hint for next time */
+			return (mm->free_area_cache = addr);
+
+ 		/* remember the largest hole we saw so far */
+ 		if (addr + mm->cached_hole_size < vma->vm_start)
+ 		        mm->cached_hole_size = vma->vm_start - addr;
+
+		/* try just below the current vma->vm_start */
+		addr = vma->vm_start-len;
+	} while (len < vma->vm_start);
+
+bottomup:
+	/*
+	 * A failed mmap() very likely causes application failure,
+	 * so fall back to the bottom-up function here. This scenario
+	 * can happen with large stack limits and large mmap()
+	 * allocations.
+	 */
+	mm->cached_hole_size = ~0UL;
+  	mm->free_area_cache = TASK_UNMAPPED_BASE;
+	addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
+	/*
+	 * Restore the topdown base:
+	 */
+	mm->free_area_cache = mm->mmap_base;
+	mm->cached_hole_size = ~0UL;
+
+	return addr;
+}
+
+
 asmlinkage long sys_uname(struct new_utsname __user * name)
 {
 	int err;
diff --git a/arch/x86/mm/mmap_64.c b/arch/x86/mm/mmap_64.c
index ffb71a31bb6e..8cf03ea651f8 100644
--- a/arch/x86/mm/mmap_64.c
+++ b/arch/x86/mm/mmap_64.c
@@ -1,32 +1,117 @@
-/* Copyright 2005 Andi Kleen, SuSE Labs.
- * Licensed under GPL, v.2
+/*
+ *  linux/arch/x86-64/mm/mmap.c
+ *
+ *  flexible mmap layout support
+ *
+ * Based on code by Ingo Molnar and Andi Kleen, copyrighted
+ * as follows:
+ *
+ * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
+ * All Rights Reserved.
+ * Copyright 2005 Andi Kleen, SUSE Labs.
+ * Copyright 2007 Jiri Kosina, SUSE Labs.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
  */
+
+#include <linux/personality.h>
 #include <linux/mm.h>
-#include <linux/sched.h>
 #include <linux/random.h>
+#include <linux/limits.h>
+#include <linux/sched.h>
 #include <asm/ia32.h>
 
-/* Notebook: move the mmap code from sys_x86_64.c over here. */
+/*
+ * Top of mmap area (just below the process stack).
+ *
+ * Leave an at least ~128 MB hole.
+ */
+#define MIN_GAP (128*1024*1024)
+#define MAX_GAP (TASK_SIZE/6*5)
 
-void arch_pick_mmap_layout(struct mm_struct *mm)
+static inline unsigned long mmap_base(void)
+{
+	unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;
+
+	if (gap < MIN_GAP)
+		gap = MIN_GAP;
+	else if (gap > MAX_GAP)
+		gap = MAX_GAP;
+
+	return TASK_SIZE - (gap & PAGE_MASK);
+}
+
+static inline int mmap_is_32(void)
 {
 #ifdef CONFIG_IA32_EMULATION
-	if (current_thread_info()->flags & _TIF_IA32)
-		return ia32_pick_mmap_layout(mm);
+	if (test_thread_flag(TIF_IA32))
+		return 1;
 #endif
-	mm->mmap_base = TASK_UNMAPPED_BASE;
+	return 0;
+}
+
+static inline int mmap_is_legacy(void)
+{
+	if (current->personality & ADDR_COMPAT_LAYOUT)
+		return 1;
+
+	if (current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY)
+		return 1;
+
+	return sysctl_legacy_va_layout;
+}
+
+/*
+ * This function, called very early during the creation of a new
+ * process VM image, sets up which VM layout function to use:
+ */
+void arch_pick_mmap_layout(struct mm_struct *mm)
+{
+	int rnd = 0;
 	if (current->flags & PF_RANDOMIZE) {
 		/*
-		 * Add 28bit randomness which is about 40bits of
-		 * address space because mmap base has to be page
-		 * aligned.  or ~1/128 of the total user VM (total
-		 * user address space is 47bits)
+		 * Add 28bit randomness which is about 40bits of address space
+		 * because mmap base has to be page aligned.
+		 * or ~1/128 of the total user VM
+		 * (total user address space is 47bits)
 		 */
-		unsigned rnd = get_random_int() & 0xfffffff;
+		rnd = get_random_int() & 0xfffffff;
+	}
 
-		mm->mmap_base += ((unsigned long)rnd) << PAGE_SHIFT;
+	/*
+	 * Fall back to the standard layout if the personality
+	 * bit is set, or if the expected stack growth is unlimited:
+	 */
+	if (mmap_is_32()) {
+#ifdef CONFIG_IA32_EMULATION
+		/* ia32_pick_mmap_layout has its own. */
+		return ia32_pick_mmap_layout(mm);
+#endif
+	} else if(mmap_is_legacy()) {
+		mm->mmap_base = TASK_UNMAPPED_BASE;
+		mm->get_unmapped_area = arch_get_unmapped_area;
+		mm->unmap_area = arch_unmap_area;
+	} else {
+		mm->mmap_base = mmap_base();
+		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+		mm->unmap_area = arch_unmap_area_topdown;
+		if (current->flags & PF_RANDOMIZE)
+			rnd = -rnd;
+	}
+	if (current->flags & PF_RANDOMIZE) {
+		mm->mmap_base += ((long)rnd) << PAGE_SHIFT;
 	}
-	mm->get_unmapped_area = arch_get_unmapped_area;
-	mm->unmap_area = arch_unmap_area;
 }
-
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 043a800c8f71..8193d24be159 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -45,7 +45,7 @@
 
 static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs);
 static int load_elf_library(struct file *);
-static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int);
+static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int, unsigned long);
 
 /*
  * If we don't support core dumping, then supply a NULL so we
@@ -298,33 +298,70 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 #ifndef elf_map
 
 static unsigned long elf_map(struct file *filep, unsigned long addr,
-		struct elf_phdr *eppnt, int prot, int type)
+		struct elf_phdr *eppnt, int prot, int type,
+		unsigned long total_size)
 {
 	unsigned long map_addr;
-	unsigned long pageoffset = ELF_PAGEOFFSET(eppnt->p_vaddr);
+	unsigned long size = eppnt->p_filesz + ELF_PAGEOFFSET(eppnt->p_vaddr);
+	unsigned long off = eppnt->p_offset - ELF_PAGEOFFSET(eppnt->p_vaddr);
+	addr = ELF_PAGESTART(addr);
+	size = ELF_PAGEALIGN(size);
 
-	down_write(&current->mm->mmap_sem);
 	/* mmap() will return -EINVAL if given a zero size, but a
 	 * segment with zero filesize is perfectly valid */
-	if (eppnt->p_filesz + pageoffset)
-		map_addr = do_mmap(filep, ELF_PAGESTART(addr),
-				   eppnt->p_filesz + pageoffset, prot, type,
-				   eppnt->p_offset - pageoffset);
-	else
-		map_addr = ELF_PAGESTART(addr);
+	if (!size)
+		return addr;
+
+	down_write(&current->mm->mmap_sem);
+	/*
+	* total_size is the size of the ELF (interpreter) image.
+	* The _first_ mmap needs to know the full size, otherwise
+	* randomization might put this image into an overlapping
+	* position with the ELF binary image. (since size < total_size)
+	* So we first map the 'big' image - and unmap the remainder at
+	* the end. (which unmap is needed for ELF images with holes.)
+	*/
+	if (total_size) {
+		total_size = ELF_PAGEALIGN(total_size);
+		map_addr = do_mmap(filep, addr, total_size, prot, type, off);
+		if (!BAD_ADDR(map_addr))
+			do_munmap(current->mm, map_addr+size, total_size-size);
+	} else
+		map_addr = do_mmap(filep, addr, size, prot, type, off);
+
 	up_write(&current->mm->mmap_sem);
 	return(map_addr);
 }
 
 #endif /* !elf_map */
 
+static unsigned long total_mapping_size(struct elf_phdr *cmds, int nr)
+{
+	int i, first_idx = -1, last_idx = -1;
+
+	for (i = 0; i < nr; i++) {
+		if (cmds[i].p_type == PT_LOAD) {
+			last_idx = i;
+			if (first_idx == -1)
+				first_idx = i;
+		}
+	}
+	if (first_idx == -1)
+		return 0;
+
+	return cmds[last_idx].p_vaddr + cmds[last_idx].p_memsz -
+				ELF_PAGESTART(cmds[first_idx].p_vaddr);
+}
+
+
 /* This is much more generalized than the library routine read function,
    so we keep this separate.  Technically the library read function
    is only provided so that we can read a.out libraries that have
    an ELF header */
 
 static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
-		struct file *interpreter, unsigned long *interp_load_addr)
+		struct file *interpreter, unsigned long *interp_map_addr,
+		unsigned long no_base)
 {
 	struct elf_phdr *elf_phdata;
 	struct elf_phdr *eppnt;
@@ -332,6 +369,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 	int load_addr_set = 0;
 	unsigned long last_bss = 0, elf_bss = 0;
 	unsigned long error = ~0UL;
+	unsigned long total_size;
 	int retval, i, size;
 
 	/* First of all, some simple consistency checks */
@@ -370,6 +408,12 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 		goto out_close;
 	}
 
+	total_size = total_mapping_size(elf_phdata, interp_elf_ex->e_phnum);
+	if (!total_size) {
+		error = -EINVAL;
+		goto out_close;
+	}
+
 	eppnt = elf_phdata;
 	for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
 		if (eppnt->p_type == PT_LOAD) {
@@ -387,9 +431,14 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 			vaddr = eppnt->p_vaddr;
 			if (interp_elf_ex->e_type == ET_EXEC || load_addr_set)
 				elf_type |= MAP_FIXED;
+			else if (no_base && interp_elf_ex->e_type == ET_DYN)
+				load_addr = -vaddr;
 
 			map_addr = elf_map(interpreter, load_addr + vaddr,
-					   eppnt, elf_prot, elf_type);
+					   eppnt, elf_prot, elf_type, total_size);
+			total_size = 0;
+			if (!*interp_map_addr)
+				*interp_map_addr = map_addr;
 			error = map_addr;
 			if (BAD_ADDR(map_addr))
 				goto out_close;
@@ -455,8 +504,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 			goto out_close;
 	}
 
-	*interp_load_addr = load_addr;
-	error = ((unsigned long)interp_elf_ex->e_entry) + load_addr;
+	error = load_addr;
 
 out_close:
 	kfree(elf_phdata);
@@ -553,7 +601,8 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 	int elf_exec_fileno;
 	int retval, i;
 	unsigned int size;
-	unsigned long elf_entry, interp_load_addr = 0;
+	unsigned long elf_entry;
+	unsigned long interp_load_addr = 0;
 	unsigned long start_code, end_code, start_data, end_data;
 	unsigned long reloc_func_desc = 0;
 	char passed_fileno[6];
@@ -825,9 +874,7 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 	current->mm->start_stack = bprm->p;
 
 	/* Now we do a little grungy work by mmaping the ELF image into
-	   the correct location in memory.  At this point, we assume that
-	   the image should be loaded at fixed address, not at a variable
-	   address. */
+	   the correct location in memory. */
 	for(i = 0, elf_ppnt = elf_phdata;
 	    i < loc->elf_ex.e_phnum; i++, elf_ppnt++) {
 		int elf_prot = 0, elf_flags;
@@ -881,11 +928,15 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 			 * default mmap base, as well as whatever program they
 			 * might try to exec.  This is because the brk will
 			 * follow the loader, and is not movable.  */
+#ifdef CONFIG_X86
+			load_bias = 0;
+#else
 			load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr);
+#endif
 		}
 
 		error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt,
-				elf_prot, elf_flags);
+				elf_prot, elf_flags,0);
 		if (BAD_ADDR(error)) {
 			send_sig(SIGKILL, current, 0);
 			retval = IS_ERR((void *)error) ?
@@ -961,13 +1012,25 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 	}
 
 	if (elf_interpreter) {
-		if (interpreter_type == INTERPRETER_AOUT)
+		if (interpreter_type == INTERPRETER_AOUT) {
 			elf_entry = load_aout_interp(&loc->interp_ex,
 						     interpreter);
-		else
+		} else {
+			unsigned long uninitialized_var(interp_map_addr);
+
 			elf_entry = load_elf_interp(&loc->interp_elf_ex,
 						    interpreter,
-						    &interp_load_addr);
+						    &interp_map_addr,
+						    load_bias);
+			if (!IS_ERR((void *)elf_entry)) {
+				/*
+				 * load_elf_interp() returns relocation
+				 * adjustment
+				 */
+				interp_load_addr = elf_entry;
+				elf_entry += loc->interp_elf_ex.e_entry;
+			}
+		}
 		if (BAD_ADDR(elf_entry)) {
 			force_sig(SIGSEGV, current);
 			retval = IS_ERR((void *)elf_entry) ?
diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index 9d4f11dd566f..6cf40dec0932 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -413,6 +413,7 @@ pte_t *lookup_address(unsigned long addr);
 		remap_pfn_range(vma, vaddr, pfn, size, prot)
 
 #define HAVE_ARCH_UNMAPPED_AREA
+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
 
 #define pgtable_cache_init()   do { } while (0)
 #define check_pgt_cache()      do { } while (0)
-- 
cgit v1.2.3-59-g8ed1b


From bb1ad8205be4cb95e3286d7442596da6fd70409f Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 30 Jan 2008 13:31:07 +0100
Subject: x86: PIE executable randomization, checkpatch fixes

#39: FILE: arch/ia64/ia32/binfmt_elf32.c:229:
+elf32_map (struct file *filep, unsigned long addr, struct elf_phdr *eppnt, int prot, int type, unsigned long unused)

WARNING: no space between function name and open parenthesis '('
#39: FILE: arch/ia64/ia32/binfmt_elf32.c:229:
+elf32_map (struct file *filep, unsigned long addr, struct elf_phdr *eppnt, int prot, int type, unsigned long unused)

WARNING: line over 80 characters
#67: FILE: arch/x86/kernel/sys_x86_64.c:80:
+			new_begin = randomize_range(*begin, *begin + 0x02000000, 0);

ERROR: use tabs not spaces
#110: FILE: arch/x86/kernel/sys_x86_64.c:185:
+ ^I        mm->cached_hole_size = 0;$

ERROR: use tabs not spaces
#111: FILE: arch/x86/kernel/sys_x86_64.c:186:
+ ^I^Imm->free_area_cache = mm->mmap_base;$

ERROR: use tabs not spaces
#112: FILE: arch/x86/kernel/sys_x86_64.c:187:
+ ^I}$

ERROR: use tabs not spaces
#141: FILE: arch/x86/kernel/sys_x86_64.c:216:
+ ^I^I/* remember the largest hole we saw so far */$

ERROR: use tabs not spaces
#142: FILE: arch/x86/kernel/sys_x86_64.c:217:
+ ^I^Iif (addr + mm->cached_hole_size < vma->vm_start)$

ERROR: use tabs not spaces
#143: FILE: arch/x86/kernel/sys_x86_64.c:218:
+ ^I^I        mm->cached_hole_size = vma->vm_start - addr;$

ERROR: use tabs not spaces
#157: FILE: arch/x86/kernel/sys_x86_64.c:232:
+  ^Imm->free_area_cache = TASK_UNMAPPED_BASE;$

ERROR: need a space before the open parenthesis '('
#291: FILE: arch/x86/mm/mmap_64.c:101:
+	} else if(mmap_is_legacy()) {

WARNING: braces {} are not necessary for single statement blocks
#302: FILE: arch/x86/mm/mmap_64.c:112:
+	if (current->flags & PF_RANDOMIZE) {
+		mm->mmap_base += ((long)rnd) << PAGE_SHIFT;
+	}

WARNING: line over 80 characters
#314: FILE: fs/binfmt_elf.c:48:
+static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int, unsigned long);

WARNING: no space between function name and open parenthesis '('
#314: FILE: fs/binfmt_elf.c:48:
+static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int, unsigned long);

WARNING: line over 80 characters
#429: FILE: fs/binfmt_elf.c:438:
+					   eppnt, elf_prot, elf_type, total_size);

ERROR: need space after that ',' (ctx:VxV)
#480: FILE: fs/binfmt_elf.c:939:
+				elf_prot, elf_flags,0);
 				                   ^

total: 9 errors, 7 warnings, 461 lines checked
Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Jakub Jelinek <jakub@redhat.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/ia64/ia32/binfmt_elf32.c |  3 ++-
 arch/x86/kernel/sys_x86_64.c  | 14 +++++++-------
 arch/x86/mm/mmap_64.c         |  5 ++---
 fs/binfmt_elf.c               |  7 ++++---
 4 files changed, 15 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/ia64/ia32/binfmt_elf32.c b/arch/ia64/ia32/binfmt_elf32.c
index 2a662215359c..4f0c30c38e99 100644
--- a/arch/ia64/ia32/binfmt_elf32.c
+++ b/arch/ia64/ia32/binfmt_elf32.c
@@ -222,7 +222,8 @@ elf32_set_personality (void)
 }
 
 static unsigned long
-elf32_map (struct file *filep, unsigned long addr, struct elf_phdr *eppnt, int prot, int type, unsigned long unused)
+elf32_map(struct file *filep, unsigned long addr, struct elf_phdr *eppnt,
+		int prot, int type, unsigned long unused)
 {
 	unsigned long pgoff = (eppnt->p_vaddr) & ~IA32_PAGE_MASK;
 
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 95485e63fd2f..bd802a5e1aa3 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -182,9 +182,9 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 
 	/* check if free_area_cache is useful for us */
 	if (len <= mm->cached_hole_size) {
- 	        mm->cached_hole_size = 0;
- 		mm->free_area_cache = mm->mmap_base;
- 	}
+		mm->cached_hole_size = 0;
+		mm->free_area_cache = mm->mmap_base;
+	}
 
 	/* either no address requested or can't fit in requested address hole */
 	addr = mm->free_area_cache;
@@ -213,9 +213,9 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 			/* remember the address as a hint for next time */
 			return (mm->free_area_cache = addr);
 
- 		/* remember the largest hole we saw so far */
- 		if (addr + mm->cached_hole_size < vma->vm_start)
- 		        mm->cached_hole_size = vma->vm_start - addr;
+		/* remember the largest hole we saw so far */
+		if (addr + mm->cached_hole_size < vma->vm_start)
+			mm->cached_hole_size = vma->vm_start - addr;
 
 		/* try just below the current vma->vm_start */
 		addr = vma->vm_start-len;
@@ -229,7 +229,7 @@ bottomup:
 	 * allocations.
 	 */
 	mm->cached_hole_size = ~0UL;
-  	mm->free_area_cache = TASK_UNMAPPED_BASE;
+	mm->free_area_cache = TASK_UNMAPPED_BASE;
 	addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
 	/*
 	 * Restore the topdown base:
diff --git a/arch/x86/mm/mmap_64.c b/arch/x86/mm/mmap_64.c
index 8cf03ea651f8..65b34f226f14 100644
--- a/arch/x86/mm/mmap_64.c
+++ b/arch/x86/mm/mmap_64.c
@@ -100,7 +100,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 		/* ia32_pick_mmap_layout has its own. */
 		return ia32_pick_mmap_layout(mm);
 #endif
-	} else if(mmap_is_legacy()) {
+	} else if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = arch_get_unmapped_area;
 		mm->unmap_area = arch_unmap_area;
@@ -111,7 +111,6 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 		if (current->flags & PF_RANDOMIZE)
 			rnd = -rnd;
 	}
-	if (current->flags & PF_RANDOMIZE) {
+	if (current->flags & PF_RANDOMIZE)
 		mm->mmap_base += ((long)rnd) << PAGE_SHIFT;
-	}
 }
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 8193d24be159..b8bca1ebc1a0 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -45,7 +45,8 @@
 
 static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs);
 static int load_elf_library(struct file *);
-static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int, unsigned long);
+static unsigned long elf_map(struct file *, unsigned long, struct elf_phdr *,
+				int, int, unsigned long);
 
 /*
  * If we don't support core dumping, then supply a NULL so we
@@ -435,7 +436,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 				load_addr = -vaddr;
 
 			map_addr = elf_map(interpreter, load_addr + vaddr,
-					   eppnt, elf_prot, elf_type, total_size);
+					eppnt, elf_prot, elf_type, total_size);
 			total_size = 0;
 			if (!*interp_map_addr)
 				*interp_map_addr = map_addr;
@@ -936,7 +937,7 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 		}
 
 		error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt,
-				elf_prot, elf_flags,0);
+				elf_prot, elf_flags, 0);
 		if (BAD_ADDR(error)) {
 			send_sig(SIGKILL, current, 0);
 			retval = IS_ERR((void *)error) ?
-- 
cgit v1.2.3-59-g8ed1b


From 954683a2c19696114894384e34f858bb9f455b11 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 30 Jan 2008 13:31:07 +0100
Subject: x86: PIE executable randomization, uninlining

Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Jakub Jelinek <jakub@redhat.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/mmap_64.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/mmap_64.c b/arch/x86/mm/mmap_64.c
index 65b34f226f14..119bf34ec529 100644
--- a/arch/x86/mm/mmap_64.c
+++ b/arch/x86/mm/mmap_64.c
@@ -42,7 +42,7 @@
 #define MIN_GAP (128*1024*1024)
 #define MAX_GAP (TASK_SIZE/6*5)
 
-static inline unsigned long mmap_base(void)
+static unsigned long mmap_base(void)
 {
 	unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;
 
@@ -54,7 +54,7 @@ static inline unsigned long mmap_base(void)
 	return TASK_SIZE - (gap & PAGE_MASK);
 }
 
-static inline int mmap_is_32(void)
+static int mmap_is_32(void)
 {
 #ifdef CONFIG_IA32_EMULATION
 	if (test_thread_flag(TIF_IA32))
@@ -63,7 +63,7 @@ static inline int mmap_is_32(void)
 	return 0;
 }
 
-static inline int mmap_is_legacy(void)
+static int mmap_is_legacy(void)
 {
 	if (current->personality & ADDR_COMPAT_LAYOUT)
 		return 1;
-- 
cgit v1.2.3-59-g8ed1b


From 929fd589135ed417663f1b75b8031c9cf6687700 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Wed, 30 Jan 2008 13:31:08 +0100
Subject: x86: some whitespace cleanups in paging code

This patch does some whitespace cleanups in the paging code to fix some
checkpatch.pl warnings of my formerly merged cleanup patches.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_64.c        |  2 +-
 include/asm-x86/pgtable_64.h | 22 +++++++++++-----------
 2 files changed, 12 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 3f8bf298dbb8..5cadbb40da3e 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -226,7 +226,7 @@ __meminit void *early_ioremap(unsigned long addr, unsigned long size)
 		vaddr += addr & ~PMD_MASK;
 		addr &= PMD_MASK;
 		for (i = 0; i < pmds; i++, addr += PMD_SIZE)
-			set_pmd(pmd + i,__pmd(addr | __PAGE_KERNEL_LARGE_EXEC));
+			set_pmd(pmd+i, __pmd(addr | __PAGE_KERNEL_LARGE_EXEC));
 		__flush_tlb();
 		return (void *)vaddr;
 	next:
diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index 6cf40dec0932..3072619365a8 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -154,22 +154,22 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, unsigned long
 #define _PAGE_BIT_GLOBAL	8	/* Global TLB entry PPro+ */
 #define _PAGE_BIT_NX           63       /* No execute: only valid after cpuid check */
 
-#define _PAGE_PRESENT	(_AC(1,UL)<<_PAGE_BIT_PRESENT)
-#define _PAGE_RW	(_AC(1,UL)<<_PAGE_BIT_RW)
-#define _PAGE_USER	(_AC(1,UL)<<_PAGE_BIT_USER)
-#define _PAGE_PWT	(_AC(1,UL)<<_PAGE_BIT_PWT)
-#define _PAGE_PCD	(_AC(1,UL)<<_PAGE_BIT_PCD)
-#define _PAGE_ACCESSED	(_AC(1,UL)<<_PAGE_BIT_ACCESSED)
-#define _PAGE_DIRTY	(_AC(1,UL)<<_PAGE_BIT_DIRTY)
+#define _PAGE_PRESENT	(_AC(1, UL)<<_PAGE_BIT_PRESENT)
+#define _PAGE_RW	(_AC(1, UL)<<_PAGE_BIT_RW)
+#define _PAGE_USER	(_AC(1, UL)<<_PAGE_BIT_USER)
+#define _PAGE_PWT	(_AC(1, UL)<<_PAGE_BIT_PWT)
+#define _PAGE_PCD	(_AC(1, UL)<<_PAGE_BIT_PCD)
+#define _PAGE_ACCESSED	(_AC(1, UL)<<_PAGE_BIT_ACCESSED)
+#define _PAGE_DIRTY	(_AC(1, UL)<<_PAGE_BIT_DIRTY)
 /* 2MB page */
-#define _PAGE_PSE	(_AC(1,UL)<<_PAGE_BIT_PSE)
+#define _PAGE_PSE	(_AC(1, UL)<<_PAGE_BIT_PSE)
 /* nonlinear file mapping, saved PTE; unset:swap */
-#define _PAGE_FILE	(_AC(1,UL)<<_PAGE_BIT_FILE)
+#define _PAGE_FILE	(_AC(1, UL)<<_PAGE_BIT_FILE)
 /* Global TLB entry */
-#define _PAGE_GLOBAL	(_AC(1,UL)<<_PAGE_BIT_GLOBAL)
+#define _PAGE_GLOBAL	(_AC(1, UL)<<_PAGE_BIT_GLOBAL)
 
 #define _PAGE_PROTNONE	0x080	/* If not present */
-#define _PAGE_NX        (_AC(1,UL)<<_PAGE_BIT_NX)
+#define _PAGE_NX        (_AC(1, UL)<<_PAGE_BIT_NX)
 
 #define _PAGE_TABLE	(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY)
 #define _KERNPG_TABLE	(_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY)
-- 
cgit v1.2.3-59-g8ed1b


From d89542229b657bdcce6a6f76168f9098ee3e9344 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:08 +0100
Subject: x86: put together equal pieces of system.h

This patch puts together pieces of system_{32,64}.h that
looks like the same. It's the first step towards integration
of this file.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_64.c |  2 +-
 include/asm-x86/system.h     | 69 ++++++++++++++++++++++++++++++++++++++++++++
 include/asm-x86/system_32.h  | 58 -------------------------------------
 include/asm-x86/system_64.h  | 12 --------
 4 files changed, 70 insertions(+), 71 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 4c4d8b3f046e..057b5442ffda 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -99,7 +99,7 @@ void exit_idle(void)
  * We use this if we don't have any better
  * idle routine..
  */
-static void default_idle(void)
+void default_idle(void)
 {
 	current_thread_info()->status &= ~TS_POLLING;
 	/*
diff --git a/include/asm-x86/system.h b/include/asm-x86/system.h
index 692562b48f2a..d0803f8c70c4 100644
--- a/include/asm-x86/system.h
+++ b/include/asm-x86/system.h
@@ -1,5 +1,74 @@
+#ifndef _ASM_X86_SYSTEM_H_
+#define _ASM_X86_SYSTEM_H_
+
+#include <asm/asm.h>
+
 #ifdef CONFIG_X86_32
 # include "system_32.h"
 #else
 # include "system_64.h"
 #endif
+
+#ifdef __KERNEL__
+#define _set_base(addr, base) do { unsigned long __pr; \
+__asm__ __volatile__ ("movw %%dx,%1\n\t" \
+	"rorl $16,%%edx\n\t" \
+	"movb %%dl,%2\n\t" \
+	"movb %%dh,%3" \
+	:"=&d" (__pr) \
+	:"m" (*((addr)+2)), \
+	 "m" (*((addr)+4)), \
+	 "m" (*((addr)+7)), \
+	 "0" (base) \
+	); } while (0)
+
+#define _set_limit(addr, limit) do { unsigned long __lr; \
+__asm__ __volatile__ ("movw %%dx,%1\n\t" \
+	"rorl $16,%%edx\n\t" \
+	"movb %2,%%dh\n\t" \
+	"andb $0xf0,%%dh\n\t" \
+	"orb %%dh,%%dl\n\t" \
+	"movb %%dl,%2" \
+	:"=&d" (__lr) \
+	:"m" (*(addr)), \
+	 "m" (*((addr)+6)), \
+	 "0" (limit) \
+	); } while (0)
+
+#define set_base(ldt, base) _set_base(((char *)&(ldt)) , (base))
+#define set_limit(ldt, limit) _set_limit(((char *)&(ldt)) , ((limit)-1))
+
+/*
+ * Save a segment register away
+ */
+#define savesegment(seg, value) \
+	asm volatile("mov %%" #seg ",%0":"=rm" (value))
+
+static inline unsigned long get_limit(unsigned long segment)
+{
+	unsigned long __limit;
+	__asm__("lsll %1,%0"
+		:"=r" (__limit):"r" (segment));
+	return __limit+1;
+}
+#endif /* __KERNEL__ */
+
+static inline void clflush(void *__p)
+{
+	asm volatile("clflush %0" : "+m" (*(char __force *)__p));
+}
+
+#define nop() __asm__ __volatile__ ("nop")
+
+void disable_hlt(void);
+void enable_hlt(void);
+
+extern int es7000_plat;
+void cpu_idle_wait(void);
+
+extern unsigned long arch_align_stack(unsigned long sp);
+extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
+
+void default_idle(void);
+
+#endif
diff --git a/include/asm-x86/system_32.h b/include/asm-x86/system_32.h
index 28978b17b07a..fb457642ac58 100644
--- a/include/asm-x86/system_32.h
+++ b/include/asm-x86/system_32.h
@@ -34,34 +34,6 @@ extern struct task_struct * FASTCALL(__switch_to(struct task_struct *prev, struc
 		      "2" (prev), "d" (next));				\
 } while (0)
 
-#define _set_base(addr,base) do { unsigned long __pr; \
-__asm__ __volatile__ ("movw %%dx,%1\n\t" \
-	"rorl $16,%%edx\n\t" \
-	"movb %%dl,%2\n\t" \
-	"movb %%dh,%3" \
-	:"=&d" (__pr) \
-	:"m" (*((addr)+2)), \
-	 "m" (*((addr)+4)), \
-	 "m" (*((addr)+7)), \
-         "0" (base) \
-        ); } while(0)
-
-#define _set_limit(addr,limit) do { unsigned long __lr; \
-__asm__ __volatile__ ("movw %%dx,%1\n\t" \
-	"rorl $16,%%edx\n\t" \
-	"movb %2,%%dh\n\t" \
-	"andb $0xf0,%%dh\n\t" \
-	"orb %%dh,%%dl\n\t" \
-	"movb %%dl,%2" \
-	:"=&d" (__lr) \
-	:"m" (*(addr)), \
-	 "m" (*((addr)+6)), \
-	 "0" (limit) \
-        ); } while(0)
-
-#define set_base(ldt,base) _set_base( ((char *)&(ldt)) , (base) )
-#define set_limit(ldt,limit) _set_limit( ((char *)&(ldt)) , ((limit)-1) )
-
 /*
  * Load a segment. Fall back on loading the zero
  * segment if something goes wrong..
@@ -83,12 +55,6 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \
 		".previous"			\
 		: :"rm" (value))
 
-/*
- * Save a segment register away
- */
-#define savesegment(seg, value) \
-	asm volatile("mov %%" #seg ",%0":"=rm" (value))
-
 
 static inline void native_clts(void)
 {
@@ -161,11 +127,6 @@ static inline void native_wbinvd(void)
 	asm volatile("wbinvd": : :"memory");
 }
 
-static inline void clflush(void *__p)
-{
-	asm volatile("clflush %0" : "+m" (*(char __force *)__p));
-}
-
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
 #else
@@ -190,15 +151,6 @@ static inline void clflush(void *__p)
 
 #endif	/* __KERNEL__ */
 
-static inline unsigned long get_limit(unsigned long segment)
-{
-	unsigned long __limit;
-	__asm__("lsll %1,%0"
-		:"=r" (__limit):"r" (segment));
-	return __limit+1;
-}
-
-#define nop() __asm__ __volatile__ ("nop")
 
 /*
  * Force strict CPU ordering.
@@ -305,15 +257,5 @@ static inline unsigned long get_limit(unsigned long segment)
  * disable hlt during certain critical i/o operations
  */
 #define HAVE_DISABLE_HLT
-void disable_hlt(void);
-void enable_hlt(void);
-
-extern int es7000_plat;
-void cpu_idle_wait(void);
-
-extern unsigned long arch_align_stack(unsigned long sp);
-extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
-
-void default_idle(void);
 
 #endif
diff --git a/include/asm-x86/system_64.h b/include/asm-x86/system_64.h
index 3dcb217a7202..cc5b2666a044 100644
--- a/include/asm-x86/system_64.h
+++ b/include/asm-x86/system_64.h
@@ -141,13 +141,6 @@ static inline void write_cr8(unsigned long val)
 
 #endif	/* __KERNEL__ */
 
-static inline void clflush(volatile void *__p)
-{
-	asm volatile("clflush %0" : "+m" (*(char __force *)__p));
-}
-
-#define nop() __asm__ __volatile__ ("nop")
-
 #ifdef CONFIG_SMP
 #define smp_mb()	mb()
 #define smp_rmb()	barrier()
@@ -177,9 +170,4 @@ static inline void clflush(volatile void *__p)
 
 #include <linux/irqflags.h>
 
-void cpu_idle_wait(void);
-
-extern unsigned long arch_align_stack(unsigned long sp);
-extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
-
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 7796931f542518092d1fd2fb7cf1f1d96e0cd4b5 Mon Sep 17 00:00:00 2001
From: Jeff Dike <jdike@addtoit.com>
Date: Wed, 30 Jan 2008 13:31:08 +0100
Subject: UML: change sigcontext fields to match x86

git-x86, in commit 70aa1bd3839e3ec74ce65316528a82570e8de666, changed
a lot of the sigcontext field names.  This patch changes UML usage to
match.

I also changed includes of generic headers from "" to <>.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/um/sys-i386/signal.c   | 50 ++++++++++++++++----------------
 arch/um/sys-x86_64/signal.c | 70 ++++++++++++++++++++++-----------------------
 2 files changed, 60 insertions(+), 60 deletions(-)

(limited to 'arch')

diff --git a/arch/um/sys-i386/signal.c b/arch/um/sys-i386/signal.c
index 0147227ce18d..19053d46cb60 100644
--- a/arch/um/sys-i386/signal.c
+++ b/arch/um/sys-i386/signal.c
@@ -3,10 +3,10 @@
  * Licensed under the GPL
  */
 
-#include "linux/ptrace.h"
-#include "asm/unistd.h"
-#include "asm/uaccess.h"
-#include "asm/ucontext.h"
+#include <linux/ptrace.h>
+#include <asm/unistd.h>
+#include <asm/uaccess.h>
+#include <asm/ucontext.h>
 #include "frame_kern.h"
 #include "skas.h"
 
@@ -18,17 +18,17 @@ void copy_sc(struct uml_pt_regs *regs, void *from)
 	REGS_FS(regs->gp) = sc->fs;
 	REGS_ES(regs->gp) = sc->es;
 	REGS_DS(regs->gp) = sc->ds;
-	REGS_EDI(regs->gp) = sc->edi;
-	REGS_ESI(regs->gp) = sc->esi;
-	REGS_EBP(regs->gp) = sc->ebp;
-	REGS_SP(regs->gp) = sc->esp;
-	REGS_EBX(regs->gp) = sc->ebx;
-	REGS_EDX(regs->gp) = sc->edx;
-	REGS_ECX(regs->gp) = sc->ecx;
-	REGS_EAX(regs->gp) = sc->eax;
-	REGS_IP(regs->gp) = sc->eip;
+	REGS_EDI(regs->gp) = sc->di;
+	REGS_ESI(regs->gp) = sc->si;
+	REGS_EBP(regs->gp) = sc->bp;
+	REGS_SP(regs->gp) = sc->sp;
+	REGS_EBX(regs->gp) = sc->bx;
+	REGS_EDX(regs->gp) = sc->dx;
+	REGS_ECX(regs->gp) = sc->cx;
+	REGS_EAX(regs->gp) = sc->ax;
+	REGS_IP(regs->gp) = sc->ip;
 	REGS_CS(regs->gp) = sc->cs;
-	REGS_EFLAGS(regs->gp) = sc->eflags;
+	REGS_EFLAGS(regs->gp) = sc->flags;
 	REGS_SS(regs->gp) = sc->ss;
 }
 
@@ -229,18 +229,18 @@ static int copy_sc_to_user(struct sigcontext __user *to,
 	sc.fs = REGS_FS(regs->regs.gp);
 	sc.es = REGS_ES(regs->regs.gp);
 	sc.ds = REGS_DS(regs->regs.gp);
-	sc.edi = REGS_EDI(regs->regs.gp);
-	sc.esi = REGS_ESI(regs->regs.gp);
-	sc.ebp = REGS_EBP(regs->regs.gp);
-	sc.esp = sp;
-	sc.ebx = REGS_EBX(regs->regs.gp);
-	sc.edx = REGS_EDX(regs->regs.gp);
-	sc.ecx = REGS_ECX(regs->regs.gp);
-	sc.eax = REGS_EAX(regs->regs.gp);
-	sc.eip = REGS_IP(regs->regs.gp);
+	sc.di = REGS_EDI(regs->regs.gp);
+	sc.si = REGS_ESI(regs->regs.gp);
+	sc.bp = REGS_EBP(regs->regs.gp);
+	sc.sp = sp;
+	sc.bx = REGS_EBX(regs->regs.gp);
+	sc.dx = REGS_EDX(regs->regs.gp);
+	sc.cx = REGS_ECX(regs->regs.gp);
+	sc.ax = REGS_EAX(regs->regs.gp);
+	sc.ip = REGS_IP(regs->regs.gp);
 	sc.cs = REGS_CS(regs->regs.gp);
-	sc.eflags = REGS_EFLAGS(regs->regs.gp);
-	sc.esp_at_signal = regs->regs.gp[UESP];
+	sc.flags = REGS_EFLAGS(regs->regs.gp);
+	sc.sp_at_signal = regs->regs.gp[UESP];
 	sc.ss = regs->regs.gp[SS];
 	sc.cr2 = fi->cr2;
 	sc.err = fi->error_code;
diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c
index 1778d33808f4..7457436b433a 100644
--- a/arch/um/sys-x86_64/signal.c
+++ b/arch/um/sys-x86_64/signal.c
@@ -4,11 +4,11 @@
  * Licensed under the GPL
  */
 
-#include "linux/personality.h"
-#include "linux/ptrace.h"
-#include "asm/unistd.h"
-#include "asm/uaccess.h"
-#include "asm/ucontext.h"
+#include <linux/personality.h>
+#include <linux/ptrace.h>
+#include <asm/unistd.h>
+#include <asm/uaccess.h>
+#include <asm/ucontext.h>
 #include "frame_kern.h"
 #include "skas.h"
 
@@ -27,16 +27,16 @@ void copy_sc(struct uml_pt_regs *regs, void *from)
 	GETREG(regs, R13, sc, r13);
 	GETREG(regs, R14, sc, r14);
 	GETREG(regs, R15, sc, r15);
-	GETREG(regs, RDI, sc, rdi);
-	GETREG(regs, RSI, sc, rsi);
-	GETREG(regs, RBP, sc, rbp);
-	GETREG(regs, RBX, sc, rbx);
-	GETREG(regs, RDX, sc, rdx);
-	GETREG(regs, RAX, sc, rax);
-	GETREG(regs, RCX, sc, rcx);
-	GETREG(regs, RSP, sc, rsp);
-	GETREG(regs, RIP, sc, rip);
-	GETREG(regs, EFLAGS, sc, eflags);
+	GETREG(regs, RDI, sc, di);
+	GETREG(regs, RSI, sc, si);
+	GETREG(regs, RBP, sc, bp);
+	GETREG(regs, RBX, sc, bx);
+	GETREG(regs, RDX, sc, dx);
+	GETREG(regs, RAX, sc, ax);
+	GETREG(regs, RCX, sc, cx);
+	GETREG(regs, RSP, sc, sp);
+	GETREG(regs, RIP, sc, ip);
+	GETREG(regs, EFLAGS, sc, flags);
 	GETREG(regs, CS, sc, cs);
 
 #undef GETREG
@@ -61,16 +61,16 @@ static int copy_sc_from_user(struct pt_regs *regs,
 	err |= GETREG(regs, R13, from, r13);
 	err |= GETREG(regs, R14, from, r14);
 	err |= GETREG(regs, R15, from, r15);
-	err |= GETREG(regs, RDI, from, rdi);
-	err |= GETREG(regs, RSI, from, rsi);
-	err |= GETREG(regs, RBP, from, rbp);
-	err |= GETREG(regs, RBX, from, rbx);
-	err |= GETREG(regs, RDX, from, rdx);
-	err |= GETREG(regs, RAX, from, rax);
-	err |= GETREG(regs, RCX, from, rcx);
-	err |= GETREG(regs, RSP, from, rsp);
-	err |= GETREG(regs, RIP, from, rip);
-	err |= GETREG(regs, EFLAGS, from, eflags);
+	err |= GETREG(regs, RDI, from, di);
+	err |= GETREG(regs, RSI, from, si);
+	err |= GETREG(regs, RBP, from, bp);
+	err |= GETREG(regs, RBX, from, bx);
+	err |= GETREG(regs, RDX, from, dx);
+	err |= GETREG(regs, RAX, from, ax);
+	err |= GETREG(regs, RCX, from, cx);
+	err |= GETREG(regs, RSP, from, sp);
+	err |= GETREG(regs, RIP, from, ip);
+	err |= GETREG(regs, EFLAGS, from, flags);
 	err |= GETREG(regs, CS, from, cs);
 	if (err)
 		return 1;
@@ -108,19 +108,19 @@ static int copy_sc_to_user(struct sigcontext __user *to,
 	__put_user((regs)->regs.gp[(regno) / sizeof(unsigned long)],	\
 		   &(sc)->regname)
 
-	err |= PUTREG(regs, RDI, to, rdi);
-	err |= PUTREG(regs, RSI, to, rsi);
-	err |= PUTREG(regs, RBP, to, rbp);
+	err |= PUTREG(regs, RDI, to, di);
+	err |= PUTREG(regs, RSI, to, si);
+	err |= PUTREG(regs, RBP, to, bp);
 	/*
 	 * Must use orignal RSP, which is passed in, rather than what's in
 	 * the pt_regs, because that's already been updated to point at the
 	 * signal frame.
 	 */
-	err |= __put_user(sp, &to->rsp);
-	err |= PUTREG(regs, RBX, to, rbx);
-	err |= PUTREG(regs, RDX, to, rdx);
-	err |= PUTREG(regs, RCX, to, rcx);
-	err |= PUTREG(regs, RAX, to, rax);
+	err |= __put_user(sp, &to->sp);
+	err |= PUTREG(regs, RBX, to, bx);
+	err |= PUTREG(regs, RDX, to, dx);
+	err |= PUTREG(regs, RCX, to, cx);
+	err |= PUTREG(regs, RAX, to, ax);
 	err |= PUTREG(regs, R8, to, r8);
 	err |= PUTREG(regs, R9, to, r9);
 	err |= PUTREG(regs, R10, to, r10);
@@ -135,8 +135,8 @@ static int copy_sc_to_user(struct sigcontext __user *to,
 	err |= __put_user(fi->error_code, &to->err);
 	err |= __put_user(fi->trap_no, &to->trapno);
 
-	err |= PUTREG(regs, RIP, to, rip);
-	err |= PUTREG(regs, EFLAGS, to, eflags);
+	err |= PUTREG(regs, RIP, to, ip);
+	err |= PUTREG(regs, EFLAGS, to, flags);
 #undef PUTREG
 
 	err |= __put_user(mask, &to->oldmask);
-- 
cgit v1.2.3-59-g8ed1b


From eee3af4a2c83a97fff107ddc445d9df6fded9ce4 Mon Sep 17 00:00:00 2001
From: Markus Metzger <markus.t.metzger@intel.com>
Date: Wed, 30 Jan 2008 13:31:09 +0100
Subject: x86, ptrace: support for branch trace store(BTS)

Resend using different mail client

Changes to the last version:
- split implementation into two layers: ds/bts and ptrace
- renamed TIF's
- save/restore ds save area msr in __switch_to_xtra()
- make block-stepping only look at BTF bit

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile_32      |   1 +
 arch/x86/kernel/Makefile_64      |   1 +
 arch/x86/kernel/cpu/intel.c      |   5 +
 arch/x86/kernel/ds.c             | 429 +++++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/process_32.c     |  19 +-
 arch/x86/kernel/process_64.c     |  26 ++-
 arch/x86/kernel/ptrace.c         | 212 +++++++++++++++++++
 arch/x86/kernel/setup_64.c       |   5 +
 arch/x86/kernel/step.c           |  18 +-
 include/asm-x86/ds.h             |  65 ++++++
 include/asm-x86/processor_32.h   |   3 +
 include/asm-x86/processor_64.h   |   3 +
 include/asm-x86/ptrace-abi.h     |  52 +++++
 include/asm-x86/ptrace.h         |  11 +
 include/asm-x86/thread_info_32.h |  12 +-
 include/asm-x86/thread_info_64.h |   9 +-
 16 files changed, 859 insertions(+), 12 deletions(-)
 create mode 100644 arch/x86/kernel/ds.c
 create mode 100644 include/asm-x86/ds.h

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index b2d7aea4c82d..cc2651bcc07f 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -11,6 +11,7 @@ obj-y	:= process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
 		quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o io_delay.o rtc.o
 
 obj-y				+= ptrace.o
+obj-y				+= ds.o
 obj-y				+= tls.o
 obj-y				+= step.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index 19af64e1a3fc..2ec96acf6486 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -13,6 +13,7 @@ obj-y	:= process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
 		i8253.o io_delay.o rtc.o
 
 obj-y				+= ptrace.o
+obj-y				+= ds.o
 obj-y				+= step.o
 
 obj-$(CONFIG_IA32_EMULATION)	+= tls.o
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 867ff94579be..e4b7e73e9024 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -11,6 +11,8 @@
 #include <asm/pgtable.h>
 #include <asm/msr.h>
 #include <asm/uaccess.h>
+#include <asm/ptrace.h>
+#include <asm/ds.h>
 
 #include "cpu.h"
 
@@ -219,6 +221,9 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 		if (!(l1 & (1<<12)))
 			set_bit(X86_FEATURE_PEBS, c->x86_capability);
 	}
+
+	if (cpu_has_bts)
+		ds_init_intel(c);
 }
 
 static unsigned int __cpuinit intel_size_cache(struct cpuinfo_x86 * c, unsigned int size)
diff --git a/arch/x86/kernel/ds.c b/arch/x86/kernel/ds.c
new file mode 100644
index 000000000000..996a7c4f5963
--- /dev/null
+++ b/arch/x86/kernel/ds.c
@@ -0,0 +1,429 @@
+/*
+ * Debug Store support
+ *
+ * This provides a low-level interface to the hardware's Debug Store
+ * feature that is used for last branch recording (LBR) and
+ * precise-event based sampling (PEBS).
+ *
+ * Different architectures use a different DS layout/pointer size.
+ * The below functions therefore work on a void*.
+ *
+ *
+ * Since there is no user for PEBS, yet, only LBR (or branch
+ * trace store, BTS) is supported.
+ *
+ *
+ * Copyright (C) 2007 Intel Corporation.
+ * Markus Metzger <markus.t.metzger@intel.com>, Dec 2007
+ */
+
+#include <asm/ds.h>
+
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+
+/*
+ * Debug Store (DS) save area configuration (see Intel64 and IA32
+ * Architectures Software Developer's Manual, section 18.5)
+ *
+ * The DS configuration consists of the following fields; different
+ * architetures vary in the size of those fields.
+ * - double-word aligned base linear address of the BTS buffer
+ * - write pointer into the BTS buffer
+ * - end linear address of the BTS buffer (one byte beyond the end of
+ *   the buffer)
+ * - interrupt pointer into BTS buffer
+ *   (interrupt occurs when write pointer passes interrupt pointer)
+ * - double-word aligned base linear address of the PEBS buffer
+ * - write pointer into the PEBS buffer
+ * - end linear address of the PEBS buffer (one byte beyond the end of
+ *   the buffer)
+ * - interrupt pointer into PEBS buffer
+ *   (interrupt occurs when write pointer passes interrupt pointer)
+ * - value to which counter is reset following counter overflow
+ *
+ * On later architectures, the last branch recording hardware uses
+ * 64bit pointers even in 32bit mode.
+ *
+ *
+ * Branch Trace Store (BTS) records store information about control
+ * flow changes. They at least provide the following information:
+ * - source linear address
+ * - destination linear address
+ *
+ * Netburst supported a predicated bit that had been dropped in later
+ * architectures. We do not suppor it.
+ *
+ *
+ * In order to abstract from the actual DS and BTS layout, we describe
+ * the access to the relevant fields.
+ * Thanks to Andi Kleen for proposing this design.
+ *
+ * The implementation, however, is not as general as it might seem. In
+ * order to stay somewhat simple and efficient, we assume an
+ * underlying unsigned type (mostly a pointer type) and we expect the
+ * field to be at least as big as that type.
+ */
+
+/*
+ * A special from_ip address to indicate that the BTS record is an
+ * info record that needs to be interpreted or skipped.
+ */
+#define BTS_ESCAPE_ADDRESS (-1)
+
+/*
+ * A field access descriptor
+ */
+struct access_desc {
+	unsigned char offset;
+	unsigned char size;
+};
+
+/*
+ * The configuration for a particular DS/BTS hardware implementation.
+ */
+struct ds_configuration {
+	/* the DS configuration */
+	unsigned char  sizeof_ds;
+	struct access_desc bts_buffer_base;
+	struct access_desc bts_index;
+	struct access_desc bts_absolute_maximum;
+	struct access_desc bts_interrupt_threshold;
+	/* the BTS configuration */
+	unsigned char  sizeof_bts;
+	struct access_desc from_ip;
+	struct access_desc to_ip;
+	/* BTS variants used to store additional information like
+	   timestamps */
+	struct access_desc info_type;
+	struct access_desc info_data;
+	unsigned long debugctl_mask;
+};
+
+/*
+ * The global configuration used by the below accessor functions
+ */
+static struct ds_configuration ds_cfg;
+
+/*
+ * Accessor functions for some DS and BTS fields using the above
+ * global ptrace_bts_cfg.
+ */
+static inline void *get_bts_buffer_base(char *base)
+{
+	return *(void **)(base + ds_cfg.bts_buffer_base.offset);
+}
+static inline void set_bts_buffer_base(char *base, void *value)
+{
+	(*(void **)(base + ds_cfg.bts_buffer_base.offset)) = value;
+}
+static inline void *get_bts_index(char *base)
+{
+	return *(void **)(base + ds_cfg.bts_index.offset);
+}
+static inline void set_bts_index(char *base, void *value)
+{
+	(*(void **)(base + ds_cfg.bts_index.offset)) = value;
+}
+static inline void *get_bts_absolute_maximum(char *base)
+{
+	return *(void **)(base + ds_cfg.bts_absolute_maximum.offset);
+}
+static inline void set_bts_absolute_maximum(char *base, void *value)
+{
+	(*(void **)(base + ds_cfg.bts_absolute_maximum.offset)) = value;
+}
+static inline void *get_bts_interrupt_threshold(char *base)
+{
+	return *(void **)(base + ds_cfg.bts_interrupt_threshold.offset);
+}
+static inline void set_bts_interrupt_threshold(char *base, void *value)
+{
+	(*(void **)(base + ds_cfg.bts_interrupt_threshold.offset)) = value;
+}
+static inline long get_from_ip(char *base)
+{
+	return *(long *)(base + ds_cfg.from_ip.offset);
+}
+static inline void set_from_ip(char *base, long value)
+{
+	(*(long *)(base + ds_cfg.from_ip.offset)) = value;
+}
+static inline long get_to_ip(char *base)
+{
+	return *(long *)(base + ds_cfg.to_ip.offset);
+}
+static inline void set_to_ip(char *base, long value)
+{
+	(*(long *)(base + ds_cfg.to_ip.offset)) = value;
+}
+static inline unsigned char get_info_type(char *base)
+{
+	return *(unsigned char *)(base + ds_cfg.info_type.offset);
+}
+static inline void set_info_type(char *base, unsigned char value)
+{
+	(*(unsigned char *)(base + ds_cfg.info_type.offset)) = value;
+}
+/*
+ * The info data might overlap with the info type on some architectures.
+ * We therefore read and write the exact number of bytes.
+ */
+static inline unsigned long long get_info_data(char *base)
+{
+	unsigned long long value = 0;
+	memcpy(&value,
+	       base + ds_cfg.info_data.offset,
+	       ds_cfg.info_data.size);
+	return value;
+}
+static inline void set_info_data(char *base, unsigned long long value)
+{
+	memcpy(base + ds_cfg.info_data.offset,
+	       &value,
+	       ds_cfg.info_data.size);
+}
+
+
+int ds_allocate(void **dsp, size_t bts_size_in_records)
+{
+	size_t bts_size_in_bytes = 0;
+	void *bts = 0;
+	void *ds = 0;
+
+	if (!ds_cfg.sizeof_ds || !ds_cfg.sizeof_bts)
+		return -EOPNOTSUPP;
+
+	if (bts_size_in_records < 0)
+		return -EINVAL;
+
+	bts_size_in_bytes =
+		bts_size_in_records * ds_cfg.sizeof_bts;
+
+	if (bts_size_in_bytes <= 0)
+		return -EINVAL;
+
+	bts = kzalloc(bts_size_in_bytes, GFP_KERNEL);
+
+	if (!bts)
+		return -ENOMEM;
+
+	ds = kzalloc(ds_cfg.sizeof_ds, GFP_KERNEL);
+
+	if (!ds) {
+		kfree(bts);
+		return -ENOMEM;
+	}
+
+	set_bts_buffer_base(ds, bts);
+	set_bts_index(ds, bts);
+	set_bts_absolute_maximum(ds, bts + bts_size_in_bytes);
+	set_bts_interrupt_threshold(ds, bts + bts_size_in_bytes + 1);
+
+	*dsp = ds;
+	return 0;
+}
+
+int ds_free(void **dsp)
+{
+	if (*dsp)
+		kfree(get_bts_buffer_base(*dsp));
+	kfree(*dsp);
+	*dsp = 0;
+
+	return 0;
+}
+
+int ds_get_bts_size(void *ds)
+{
+	size_t size_in_bytes;
+
+	if (!ds_cfg.sizeof_ds || !ds_cfg.sizeof_bts)
+		return -EOPNOTSUPP;
+
+	size_in_bytes =
+		get_bts_absolute_maximum(ds) -
+		get_bts_buffer_base(ds);
+
+	return size_in_bytes / ds_cfg.sizeof_bts;
+}
+
+int ds_get_bts_index(void *ds)
+{
+	size_t index_offset_in_bytes;
+
+	if (!ds_cfg.sizeof_ds || !ds_cfg.sizeof_bts)
+		return -EOPNOTSUPP;
+
+	index_offset_in_bytes =
+		get_bts_index(ds) -
+		get_bts_buffer_base(ds);
+
+	return index_offset_in_bytes / ds_cfg.sizeof_bts;
+}
+
+int ds_read_bts(void *ds, size_t index, struct bts_struct *out)
+{
+	void *bts;
+
+	if (!ds_cfg.sizeof_ds || !ds_cfg.sizeof_bts)
+		return -EOPNOTSUPP;
+
+	if (index < 0)
+		return -EINVAL;
+
+	if (index >= ds_get_bts_size(ds))
+		return -EINVAL;
+
+	bts = get_bts_buffer_base(ds);
+	bts = (char *)bts + (index * ds_cfg.sizeof_bts);
+
+	memset(out, 0, sizeof(*out));
+	if (get_from_ip(bts) == BTS_ESCAPE_ADDRESS) {
+		out->qualifier         = get_info_type(bts);
+		out->variant.timestamp = get_info_data(bts);
+	} else {
+		out->qualifier = BTS_BRANCH;
+		out->variant.lbr.from_ip = get_from_ip(bts);
+		out->variant.lbr.to_ip   = get_to_ip(bts);
+	}
+
+	return 0;
+}
+
+int ds_write_bts(void *ds, const struct bts_struct *in)
+{
+	void *bts;
+
+	if (!ds_cfg.sizeof_ds || !ds_cfg.sizeof_bts)
+		return -EOPNOTSUPP;
+
+	if (ds_get_bts_size(ds) <= 0)
+		return -ENXIO;
+
+	bts = get_bts_index(ds);
+
+	memset(bts, 0, ds_cfg.sizeof_bts);
+	switch (in->qualifier) {
+	case BTS_INVALID:
+		break;
+
+	case BTS_BRANCH:
+		set_from_ip(bts, in->variant.lbr.from_ip);
+		set_to_ip(bts, in->variant.lbr.to_ip);
+		break;
+
+	case BTS_TASK_ARRIVES:
+	case BTS_TASK_DEPARTS:
+		set_from_ip(bts, BTS_ESCAPE_ADDRESS);
+		set_info_type(bts, in->qualifier);
+		set_info_data(bts, in->variant.timestamp);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	bts = (char *)bts + ds_cfg.sizeof_bts;
+	if (bts >= get_bts_absolute_maximum(ds))
+		bts = get_bts_buffer_base(ds);
+	set_bts_index(ds, bts);
+
+	return 0;
+}
+
+unsigned long ds_debugctl_mask(void)
+{
+	return ds_cfg.debugctl_mask;
+}
+
+#ifdef __i386__
+static const struct ds_configuration ds_cfg_netburst = {
+	.sizeof_ds = 9 * 4,
+	.bts_buffer_base = { 0, 4 },
+	.bts_index = { 4, 4 },
+	.bts_absolute_maximum = { 8, 4 },
+	.bts_interrupt_threshold = { 12, 4 },
+	.sizeof_bts = 3 * 4,
+	.from_ip = { 0, 4 },
+	.to_ip = { 4, 4 },
+	.info_type = { 4, 1 },
+	.info_data = { 5, 7 },
+	.debugctl_mask = (1<<2)|(1<<3)
+};
+
+static const struct ds_configuration ds_cfg_pentium_m = {
+	.sizeof_ds = 9 * 4,
+	.bts_buffer_base = { 0, 4 },
+	.bts_index = { 4, 4 },
+	.bts_absolute_maximum = { 8, 4 },
+	.bts_interrupt_threshold = { 12, 4 },
+	.sizeof_bts = 3 * 4,
+	.from_ip = { 0, 4 },
+	.to_ip = { 4, 4 },
+	.info_type = { 4, 1 },
+	.info_data = { 5, 7 },
+	.debugctl_mask = (1<<6)|(1<<7)
+};
+#endif /* _i386_ */
+
+static const struct ds_configuration ds_cfg_core2 = {
+	.sizeof_ds = 9 * 8,
+	.bts_buffer_base = { 0, 8 },
+	.bts_index = { 8, 8 },
+	.bts_absolute_maximum = { 16, 8 },
+	.bts_interrupt_threshold = { 24, 8 },
+	.sizeof_bts = 3 * 8,
+	.from_ip = { 0, 8 },
+	.to_ip = { 8, 8 },
+	.info_type = { 8, 1 },
+	.info_data = { 9, 7 },
+	.debugctl_mask = (1<<6)|(1<<7)|(1<<9)
+};
+
+static inline void
+ds_configure(const struct ds_configuration *cfg)
+{
+	ds_cfg = *cfg;
+}
+
+void __cpuinit ds_init_intel(struct cpuinfo_x86 *c)
+{
+	switch (c->x86) {
+	case 0x6:
+		switch (c->x86_model) {
+#ifdef __i386__
+		case 0xD:
+		case 0xE: /* Pentium M */
+			ds_configure(&ds_cfg_pentium_m);
+			break;
+#endif /* _i386_ */
+		case 0xF: /* Core2 */
+			ds_configure(&ds_cfg_core2);
+			break;
+		default:
+			/* sorry, don't know about them */
+			break;
+		}
+		break;
+	case 0xF:
+		switch (c->x86_model) {
+#ifdef __i386__
+		case 0x0:
+		case 0x1:
+		case 0x2: /* Netburst */
+			ds_configure(&ds_cfg_netburst);
+			break;
+#endif /* _i386_ */
+		default:
+			/* sorry, don't know about them */
+			break;
+		}
+		break;
+	default:
+		/* sorry, don't know about them */
+		break;
+	}
+}
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 5350763a2d03..2b9db9371060 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -614,11 +614,21 @@ __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
 		 struct tss_struct *tss)
 {
 	struct thread_struct *prev, *next;
+	unsigned long debugctl;
 
 	prev = &prev_p->thread;
 	next = &next_p->thread;
 
-	if (next->debugctlmsr != prev->debugctlmsr)
+	debugctl = prev->debugctlmsr;
+	if (next->ds_area_msr != prev->ds_area_msr) {
+		/* we clear debugctl to make sure DS
+		 * is not in use when we change it */
+		debugctl = 0;
+		wrmsrl(MSR_IA32_DEBUGCTLMSR, 0);
+		wrmsr(MSR_IA32_DS_AREA, next->ds_area_msr, 0);
+	}
+
+	if (next->debugctlmsr != debugctl)
 		wrmsr(MSR_IA32_DEBUGCTLMSR, next->debugctlmsr, 0);
 
 	if (test_tsk_thread_flag(next_p, TIF_DEBUG)) {
@@ -642,6 +652,13 @@ __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
 	}
 #endif
 
+	if (test_tsk_thread_flag(prev_p, TIF_BTS_TRACE_TS))
+		ptrace_bts_take_timestamp(prev_p, BTS_TASK_DEPARTS);
+
+	if (test_tsk_thread_flag(next_p, TIF_BTS_TRACE_TS))
+		ptrace_bts_take_timestamp(next_p, BTS_TASK_ARRIVES);
+
+
 	if (!test_tsk_thread_flag(next_p, TIF_IO_BITMAP)) {
 		/*
 		 * Disable the bitmap via an invalid offset. We still cache
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 057b5442ffda..843bf0c978a4 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -568,11 +568,21 @@ static inline void __switch_to_xtra(struct task_struct *prev_p,
 				    struct tss_struct *tss)
 {
 	struct thread_struct *prev, *next;
+	unsigned long debugctl;
 
 	prev = &prev_p->thread,
 	next = &next_p->thread;
 
-	if (next->debugctlmsr != prev->debugctlmsr)
+	debugctl = prev->debugctlmsr;
+	if (next->ds_area_msr != prev->ds_area_msr) {
+		/* we clear debugctl to make sure DS
+		 * is not in use when we change it */
+		debugctl = 0;
+		wrmsrl(MSR_IA32_DEBUGCTLMSR, 0);
+		wrmsrl(MSR_IA32_DS_AREA, next->ds_area_msr);
+	}
+
+	if (next->debugctlmsr != debugctl)
 		wrmsrl(MSR_IA32_DEBUGCTLMSR, next->debugctlmsr);
 
 	if (test_tsk_thread_flag(next_p, TIF_DEBUG)) {
@@ -598,6 +608,16 @@ static inline void __switch_to_xtra(struct task_struct *prev_p,
 		 */
 		memset(tss->io_bitmap, 0xff, prev->io_bitmap_max);
 	}
+
+	/*
+	 * Last branch recording recofiguration of trace hardware and
+	 * disentangling of trace data per task.
+	 */
+	if (test_tsk_thread_flag(prev_p, TIF_BTS_TRACE_TS))
+		ptrace_bts_take_timestamp(prev_p, BTS_TASK_DEPARTS);
+
+	if (test_tsk_thread_flag(next_p, TIF_BTS_TRACE_TS))
+		ptrace_bts_take_timestamp(next_p, BTS_TASK_ARRIVES);
 }
 
 /*
@@ -701,8 +721,8 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	/*
 	 * Now maybe reload the debug registers and handle I/O bitmaps
 	 */
-	if (unlikely((task_thread_info(next_p)->flags & _TIF_WORK_CTXSW))
-	    || test_tsk_thread_flag(prev_p, TIF_IO_BITMAP))
+	if (unlikely(task_thread_info(next_p)->flags & _TIF_WORK_CTXSW_NEXT ||
+		     task_thread_info(prev_p)->flags & _TIF_WORK_CTXSW_PREV))
 		__switch_to_xtra(prev_p, next_p, tss);
 
 	/* If the task has used fpu the last 5 timeslices, just do a full
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 3399c1be79b8..8d0dd8b5effe 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -2,6 +2,9 @@
 /*
  * Pentium III FXSR, SSE support
  *	Gareth Hughes <gareth@valinux.com>, May 2000
+ *
+ * BTS tracing
+ *	Markus Metzger <markus.t.metzger@intel.com>, Dec 2007
  */
 
 #include <linux/kernel.h>
@@ -26,6 +29,14 @@
 #include <asm/desc.h>
 #include <asm/prctl.h>
 #include <asm/proto.h>
+#include <asm/ds.h>
+
+
+/*
+ * The maximal size of a BTS buffer per traced task in number of BTS
+ * records.
+ */
+#define PTRACE_BTS_BUFFER_MAX 4000
 
 /*
  * does not yet catch signals sent when the child dies.
@@ -455,6 +466,165 @@ static int ptrace_set_debugreg(struct task_struct *child,
 	return 0;
 }
 
+static int ptrace_bts_max_buffer_size(void)
+{
+	return PTRACE_BTS_BUFFER_MAX;
+}
+
+static int ptrace_bts_get_buffer_size(struct task_struct *child)
+{
+	if (!child->thread.ds_area_msr)
+		return -ENXIO;
+
+	return ds_get_bts_size((void *)child->thread.ds_area_msr);
+}
+
+static int ptrace_bts_get_index(struct task_struct *child)
+{
+	if (!child->thread.ds_area_msr)
+		return -ENXIO;
+
+	return ds_get_bts_index((void *)child->thread.ds_area_msr);
+}
+
+static int ptrace_bts_read_record(struct task_struct *child,
+				  long index,
+				  struct bts_struct __user *out)
+{
+	struct bts_struct ret;
+	int retval;
+
+	if (!child->thread.ds_area_msr)
+		return -ENXIO;
+
+	retval = ds_read_bts((void *)child->thread.ds_area_msr,
+			     index, &ret);
+	if (retval)
+		return retval;
+
+	if (copy_to_user(out, &ret, sizeof(ret)))
+		return -EFAULT;
+
+	return sizeof(ret);
+}
+
+static int ptrace_bts_write_record(struct task_struct *child,
+				   const struct bts_struct *in)
+{
+	int retval;
+
+	if (!child->thread.ds_area_msr)
+		return -ENXIO;
+
+	retval = ds_write_bts((void *)child->thread.ds_area_msr, in);
+	if (retval)
+		return retval;
+
+	return sizeof(*in);
+}
+
+static int ptrace_bts_config(struct task_struct *child,
+			     unsigned long options)
+{
+	unsigned long debugctl_mask = ds_debugctl_mask();
+	int retval;
+
+	retval = ptrace_bts_get_buffer_size(child);
+	if (retval < 0)
+		return retval;
+	if (retval == 0)
+		return -ENXIO;
+
+	if (options & PTRACE_BTS_O_TRACE_TASK) {
+		child->thread.debugctlmsr |= debugctl_mask;
+		set_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
+	} else {
+		/* there is no way for us to check whether we 'own'
+		 * the respective bits in the DEBUGCTL MSR, we're
+		 * about to clear */
+		child->thread.debugctlmsr &= ~debugctl_mask;
+
+		if (!child->thread.debugctlmsr)
+			clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
+	}
+
+	if (options & PTRACE_BTS_O_TIMESTAMPS)
+		set_tsk_thread_flag(child, TIF_BTS_TRACE_TS);
+	else
+		clear_tsk_thread_flag(child, TIF_BTS_TRACE_TS);
+
+	return 0;
+}
+
+static int ptrace_bts_status(struct task_struct *child)
+{
+	unsigned long debugctl_mask = ds_debugctl_mask();
+	int retval, status = 0;
+
+	retval = ptrace_bts_get_buffer_size(child);
+	if (retval < 0)
+		return retval;
+	if (retval == 0)
+		return -ENXIO;
+
+	if (ptrace_bts_get_buffer_size(child) <= 0)
+		return -ENXIO;
+
+	if (test_tsk_thread_flag(child, TIF_DEBUGCTLMSR) &&
+	    child->thread.debugctlmsr & debugctl_mask)
+		status |= PTRACE_BTS_O_TRACE_TASK;
+	if (test_tsk_thread_flag(child, TIF_BTS_TRACE_TS))
+		status |= PTRACE_BTS_O_TIMESTAMPS;
+
+	return status;
+}
+
+static int ptrace_bts_allocate_bts(struct task_struct *child,
+				   int size_in_records)
+{
+	int retval = 0;
+	void *ds;
+
+	if (size_in_records < 0)
+		return -EINVAL;
+
+	if (size_in_records > ptrace_bts_max_buffer_size())
+		return -EINVAL;
+
+	if (size_in_records == 0) {
+		ptrace_bts_config(child, /* options = */ 0);
+	} else {
+		retval = ds_allocate(&ds, size_in_records);
+		if (retval)
+			return retval;
+	}
+
+	if (child->thread.ds_area_msr)
+		ds_free((void **)&child->thread.ds_area_msr);
+
+	child->thread.ds_area_msr = (unsigned long)ds;
+	if (child->thread.ds_area_msr)
+		set_tsk_thread_flag(child, TIF_DS_AREA_MSR);
+	else
+		clear_tsk_thread_flag(child, TIF_DS_AREA_MSR);
+
+	return retval;
+}
+
+void ptrace_bts_take_timestamp(struct task_struct *tsk,
+			       enum bts_qualifier qualifier)
+{
+	struct bts_struct rec = {
+		.qualifier = qualifier,
+		.variant.timestamp = sched_clock()
+	};
+
+	if (ptrace_bts_get_buffer_size(tsk) <= 0)
+		return;
+
+	ptrace_bts_write_record(tsk, &rec);
+}
+
 /*
  * Called by kernel/ptrace.c when detaching..
  *
@@ -466,6 +636,11 @@ void ptrace_disable(struct task_struct *child)
 #ifdef TIF_SYSCALL_EMU
 	clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
 #endif
+	ptrace_bts_config(child, /* options = */ 0);
+	if (child->thread.ds_area_msr) {
+	    ds_free((void **)&child->thread.ds_area_msr);
+	    clear_tsk_thread_flag(child, TIF_DS_AREA_MSR);
+	}
 }
 
 long arch_ptrace(struct task_struct *child, long request, long addr, long data)
@@ -626,6 +801,36 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		break;
 #endif
 
+	case PTRACE_BTS_MAX_BUFFER_SIZE:
+		ret = ptrace_bts_max_buffer_size();
+		break;
+
+	case PTRACE_BTS_ALLOCATE_BUFFER:
+		ret = ptrace_bts_allocate_bts(child, data);
+		break;
+
+	case PTRACE_BTS_GET_BUFFER_SIZE:
+		ret = ptrace_bts_get_buffer_size(child);
+		break;
+
+	case PTRACE_BTS_GET_INDEX:
+		ret = ptrace_bts_get_index(child);
+		break;
+
+	case PTRACE_BTS_READ_RECORD:
+		ret = ptrace_bts_read_record
+			(child, data,
+			 (struct bts_struct __user *) addr);
+		break;
+
+	case PTRACE_BTS_CONFIG:
+		ret = ptrace_bts_config(child, data);
+		break;
+
+	case PTRACE_BTS_STATUS:
+		ret = ptrace_bts_status(child);
+		break;
+
 	default:
 		ret = ptrace_request(child, request, addr, data);
 		break;
@@ -809,6 +1014,13 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 	case PTRACE_SETOPTIONS:
 	case PTRACE_SET_THREAD_AREA:
 	case PTRACE_GET_THREAD_AREA:
+	case PTRACE_BTS_MAX_BUFFER_SIZE:
+	case PTRACE_BTS_ALLOCATE_BUFFER:
+	case PTRACE_BTS_GET_BUFFER_SIZE:
+	case PTRACE_BTS_GET_INDEX:
+	case PTRACE_BTS_READ_RECORD:
+	case PTRACE_BTS_CONFIG:
+	case PTRACE_BTS_STATUS:
 		return sys_ptrace(request, pid, addr, data);
 
 	default:
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index ce4d6b52ce36..f2b131ef844e 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -60,6 +60,7 @@
 #include <asm/dmi.h>
 #include <asm/cacheflush.h>
 #include <asm/mce.h>
+#include <asm/ds.h>
 
 /*
  * Machine setup..
@@ -823,6 +824,10 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 			set_cpu_cap(c, X86_FEATURE_PEBS);
 	}
 
+
+	if (cpu_has_bts)
+		ds_init_intel(c);
+
 	n = c->extended_cpuid_level;
 	if (n >= 0x80000008) {
 		unsigned eax = cpuid_eax(0x80000008);
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index f55c003f5b63..21ea22fda5fc 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -169,9 +169,14 @@ static void enable_step(struct task_struct *child, bool block)
 	 */
 	if (enable_single_step(child) && block) {
 		set_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
-		write_debugctlmsr(child, DEBUGCTLMSR_BTF);
-	} else if (test_and_clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR)) {
-		write_debugctlmsr(child, 0);
+		write_debugctlmsr(child,
+				  child->thread.debugctlmsr | DEBUGCTLMSR_BTF);
+	} else {
+	    write_debugctlmsr(child,
+			      child->thread.debugctlmsr & ~TIF_DEBUGCTLMSR);
+
+	    if (!child->thread.debugctlmsr)
+		    clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
 	}
 }
 
@@ -190,8 +195,11 @@ void user_disable_single_step(struct task_struct *child)
 	/*
 	 * Make sure block stepping (BTF) is disabled.
 	 */
-	if (test_and_clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR))
-		write_debugctlmsr(child, 0);
+	write_debugctlmsr(child,
+			  child->thread.debugctlmsr & ~TIF_DEBUGCTLMSR);
+
+	if (!child->thread.debugctlmsr)
+		clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
 
 	/* Always clear TIF_SINGLESTEP... */
 	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
diff --git a/include/asm-x86/ds.h b/include/asm-x86/ds.h
new file mode 100644
index 000000000000..edd8467740a6
--- /dev/null
+++ b/include/asm-x86/ds.h
@@ -0,0 +1,65 @@
+/*
+ * Debug Store (DS) support
+ *
+ * This provides a low-level interface to the hardware's Debug Store
+ * feature that is used for last branch recording (LBR) and
+ * precise-event based sampling (PEBS).
+ *
+ * Different architectures use a different DS layout/pointer size.
+ * The below functions therefore work on a void*.
+ *
+ *
+ * Since there is no user for PEBS, yet, only LBR (or branch
+ * trace store, BTS) is supported.
+ *
+ *
+ * Copyright (C) 2007 Intel Corporation.
+ * Markus Metzger <markus.t.metzger@intel.com>, Dec 2007
+ */
+
+#ifndef _ASM_X86_DS_H
+#define _ASM_X86_DS_H
+
+#include <linux/types.h>
+#include <linux/init.h>
+
+struct cpuinfo_x86;
+
+
+/* a branch trace record entry
+ *
+ * In order to unify the interface between various processor versions,
+ * we use the below data structure for all processors.
+ */
+enum bts_qualifier {
+	BTS_INVALID = 0,
+	BTS_BRANCH,
+	BTS_TASK_ARRIVES,
+	BTS_TASK_DEPARTS
+};
+
+struct bts_struct {
+	enum bts_qualifier qualifier;
+	union {
+		/* BTS_BRANCH */
+		struct {
+			long from_ip;
+			long to_ip;
+		} lbr;
+		/* BTS_TASK_ARRIVES or
+		   BTS_TASK_DEPARTS */
+		unsigned long long timestamp;
+	} variant;
+};
+
+
+extern int ds_allocate(void **, size_t);
+extern int ds_free(void **);
+extern int ds_get_bts_size(void *);
+extern int ds_get_bts_index(void *);
+extern int ds_read_bts(void *, size_t, struct bts_struct *);
+extern int ds_write_bts(void *, const struct bts_struct *);
+extern unsigned long ds_debugctl_mask(void);
+extern void __cpuinit ds_init_intel(struct cpuinfo_x86 *c);
+
+#endif /* _ASM_X86_DS_H */
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index 0d83da198127..9c0ab7f26bd9 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -360,6 +360,9 @@ struct thread_struct {
 	unsigned long	io_bitmap_max;
 /* MSR_IA32_DEBUGCTLMSR value to switch in if TIF_DEBUGCTLMSR is set.  */
 	unsigned long	debugctlmsr;
+/* Debug Store - if not 0 points to a DS Save Area configuration;
+ *               goes into MSR_IA32_DS_AREA */
+	unsigned long	ds_area_msr;
 };
 
 #define INIT_THREAD  {							\
diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h
index 0780f3e3fdfe..7b7f8a142e20 100644
--- a/include/asm-x86/processor_64.h
+++ b/include/asm-x86/processor_64.h
@@ -240,6 +240,9 @@ struct thread_struct {
 	unsigned io_bitmap_max;
 /* MSR_IA32_DEBUGCTLMSR value to switch in if TIF_DEBUGCTLMSR is set.  */
 	unsigned long	debugctlmsr;
+/* Debug Store - if not 0 points to a DS Save Area configuration;
+ *               goes into MSR_IA32_DS_AREA */
+	unsigned long	ds_area_msr;
 /* cached TLS descriptors. */
 	u64 tls_array[GDT_ENTRY_TLS_ENTRIES];
 } __attribute__((aligned(16)));
diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h
index adce6b51df2e..6fadc5214e14 100644
--- a/include/asm-x86/ptrace-abi.h
+++ b/include/asm-x86/ptrace-abi.h
@@ -80,4 +80,56 @@
 
 #define PTRACE_SINGLEBLOCK	33	/* resume execution until next branch */
 
+/* Return maximal BTS buffer size in number of records,
+   if successuf; -1, otherwise.
+   EOPNOTSUPP...processor does not support bts tracing */
+#define PTRACE_BTS_MAX_BUFFER_SIZE 40
+
+/* Allocate new bts buffer (free old one, if exists) of size DATA bts records;
+   parameter ADDR is ignored.
+   Return 0, if successful; -1, otherwise.
+   EOPNOTSUPP...processor does not support bts tracing
+   EINVAL.......invalid size in records
+   ENOMEM.......out of memory */
+#define PTRACE_BTS_ALLOCATE_BUFFER 41
+
+/* Return the size of the bts buffer in number of bts records,
+   if successful; -1, otherwise.
+   EOPNOTSUPP...processor does not support bts tracing
+   ENXIO........no buffer allocated */
+#define PTRACE_BTS_GET_BUFFER_SIZE 42
+
+/* Return the index of the next bts record to be written,
+   if successful; -1, otherwise.
+   EOPNOTSUPP...processor does not support bts tracing
+   ENXIO........no buffer allocated
+   After the first warp-around, this is the start of the circular bts buffer. */
+#define PTRACE_BTS_GET_INDEX 43
+
+/* Read the DATA'th bts record into a ptrace_bts_record buffer provided in ADDR.
+   Return 0, if successful; -1, otherwise
+   EOPNOTSUPP...processor does not support bts tracing
+   ENXIO........no buffer allocated
+   EINVAL.......invalid index */
+#define PTRACE_BTS_READ_RECORD 44
+
+/* Configure last branch trace; the configuration is given as a bit-mask of
+   PTRACE_BTS_O_* options in DATA; parameter ADDR is ignored.
+   Return 0, if successful; -1, otherwise
+   EOPNOTSUPP...processor does not support bts tracing
+   ENXIO........no buffer allocated */
+#define PTRACE_BTS_CONFIG 45
+
+/* Return the configuration as bit-mask of PTRACE_BTS_O_* options
+   if successful; -1, otherwise.
+   EOPNOTSUPP...processor does not support bts tracing
+   ENXIO........no buffer allocated */
+#define PTRACE_BTS_STATUS 46
+
+/* Trace configuration options */
+/* Collect last branch trace */
+#define PTRACE_BTS_O_TRACE_TASK 0x1
+/* Take timestamps when the task arrives and departs */
+#define PTRACE_BTS_O_TIMESTAMPS 0x2
+
 #endif
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index 9228870f6157..a9a1bab1451a 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -4,8 +4,19 @@
 #include <linux/compiler.h>	/* For __user */
 #include <asm/ptrace-abi.h>
 
+
 #ifndef __ASSEMBLY__
 
+#ifdef __KERNEL__
+
+#include <asm/ds.h>
+
+struct task_struct;
+extern void ptrace_bts_take_timestamp(struct task_struct *, enum bts_qualifier);
+
+#endif /* __KERNEL__ */
+
+
 #ifdef __i386__
 /* this struct defines the way the registers are stored on the
    stack during a system call. */
diff --git a/include/asm-x86/thread_info_32.h b/include/asm-x86/thread_info_32.h
index 306fc80800e1..5bd508260ffb 100644
--- a/include/asm-x86/thread_info_32.h
+++ b/include/asm-x86/thread_info_32.h
@@ -140,6 +140,8 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_NOTSC		20	/* TSC is not accessible in userland */
 #define TIF_FORCED_TF		21	/* true if TF in eflags artificially */
 #define TIF_DEBUGCTLMSR		22	/* uses thread_struct.debugctlmsr */
+#define TIF_DS_AREA_MSR 	23      /* uses thread_struct.ds_area_msr */
+#define TIF_BTS_TRACE_TS        24      /* record scheduling event timestamps */
 
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
@@ -157,6 +159,8 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_NOTSC		(1<<TIF_NOTSC)
 #define _TIF_FORCED_TF		(1<<TIF_FORCED_TF)
 #define _TIF_DEBUGCTLMSR	(1<<TIF_DEBUGCTLMSR)
+#define _TIF_DS_AREA_MSR	(1<<TIF_DS_AREA_MSR)
+#define _TIF_BTS_TRACE_TS	(1<<TIF_BTS_TRACE_TS)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK \
@@ -166,8 +170,12 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_ALLWORK_MASK	(0x0000FFFF & ~_TIF_SECCOMP)
 
 /* flags to check in __switch_to() */
-#define _TIF_WORK_CTXSW_NEXT (_TIF_IO_BITMAP | _TIF_NOTSC | _TIF_DEBUG | _TIF_DEBUGCTLMSR)
-#define _TIF_WORK_CTXSW_PREV (_TIF_IO_BITMAP | _TIF_NOTSC | _TIF_DEBUGCTLMSR)
+#define _TIF_WORK_CTXSW \
+    (_TIF_IO_BITMAP | _TIF_NOTSC | _TIF_DEBUGCTLMSR | \
+     _TIF_DS_AREA_MSR | _TIF_BTS_TRACE_TS)
+#define _TIF_WORK_CTXSW_PREV _TIF_WORK_CTXSW
+#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW | _TIF_DEBUG)
+
 
 /*
  * Thread-synchronous status.
diff --git a/include/asm-x86/thread_info_64.h b/include/asm-x86/thread_info_64.h
index ee35fd12b541..c2911a99cc32 100644
--- a/include/asm-x86/thread_info_64.h
+++ b/include/asm-x86/thread_info_64.h
@@ -123,6 +123,8 @@ static inline struct thread_info *stack_thread_info(void)
 #define TIF_FREEZE		23	/* is freezing for suspend */
 #define TIF_FORCED_TF		24	/* true if TF in eflags artificially */
 #define TIF_DEBUGCTLMSR		25	/* uses thread_struct.debugctlmsr */
+#define TIF_DS_AREA_MSR	25      /* uses thread_struct.ds_area_msr */
+#define TIF_BTS_TRACE_TS	26      /* record scheduling event timestamps */
 
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
@@ -142,6 +144,8 @@ static inline struct thread_info *stack_thread_info(void)
 #define _TIF_FREEZE		(1<<TIF_FREEZE)
 #define _TIF_FORCED_TF		(1<<TIF_FORCED_TF)
 #define _TIF_DEBUGCTLMSR	(1<<TIF_DEBUGCTLMSR)
+#define _TIF_DS_AREA_MSR	(1<<TIF_DS_AREA_MSR)
+#define _TIF_BTS_TRACE_TS	(1<<TIF_BTS_TRACE_TS)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK \
@@ -153,7 +157,10 @@ static inline struct thread_info *stack_thread_info(void)
 	(_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY|_TIF_HRTICK_RESCHED)
 
 /* flags to check in __switch_to() */
-#define _TIF_WORK_CTXSW (_TIF_DEBUG|_TIF_IO_BITMAP|_TIF_DEBUGCTLMSR)
+#define _TIF_WORK_CTXSW \
+    (_TIF_IO_BITMAP|_TIF_DEBUGCTLMSR|_TIF_DS_AREA_MSR|_TIF_BTS_TRACE_TS)
+#define _TIF_WORK_CTXSW_PREV _TIF_WORK_CTXSW
+#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW|_TIF_DEBUG)
 
 #define PREEMPT_ACTIVE     0x10000000
 
-- 
cgit v1.2.3-59-g8ed1b


From 27ec161f93b8f018e0270a5383ea1d1c36f00c8a Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:31:09 +0100
Subject: x86: kill mk_pte_huge

It only has a single use, which can be trivially replaced.

Signed-off-by: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_64.c        | 3 +--
 include/asm-x86/pgtable_64.h | 1 -
 2 files changed, 1 insertion(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 5cadbb40da3e..15e05a004fcf 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -742,8 +742,7 @@ int __meminit vmemmap_populate(struct page *start_page,
 			if (!p)
 				return -ENOMEM;
 
-			entry = pfn_pte(__pa(p) >> PAGE_SHIFT, PAGE_KERNEL);
-			mk_pte_huge(entry);
+			entry = pfn_pte(__pa(p) >> PAGE_SHIFT, PAGE_KERNEL_LARGE);
 			set_pmd(pmd, __pmd(pte_val(entry)));
 
 			printk(KERN_DEBUG " [%lx-%lx] PMD ->%p on node %d\n",
diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index 3072619365a8..5c252d9fee1b 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -355,7 +355,6 @@ static inline int pmd_large(pmd_t pte) {
 
 /* page, protection -> pte */
 #define mk_pte(page, pgprot)	pfn_pte(page_to_pfn(page), (pgprot))
-#define mk_pte_huge(entry) (pte_val(entry) |= _PAGE_PRESENT | _PAGE_PSE)
  
 /* Change flags of a PTE */
 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
-- 
cgit v1.2.3-59-g8ed1b


From f3f20de87c03a90add5e34806c28a03a0d60bde0 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:31:09 +0100
Subject: x86: clean up mm/init_32.c

Some code reformatting in init_32.c.  No functional change.

Signed-off-by: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_32.c | 31 +++++++++++++++++++++----------
 1 file changed, 21 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 3c76d194fd2c..e6e34c7dcabf 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -165,16 +165,25 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base)
 		pmd = one_md_table_init(pgd);
 		if (pfn >= max_low_pfn)
 			continue;
-		for (pmd_idx = 0; pmd_idx < PTRS_PER_PMD && pfn < max_low_pfn; pmd++, pmd_idx++) {
+		for (pmd_idx = 0;
+		     pmd_idx < PTRS_PER_PMD && pfn < max_low_pfn;
+		     pmd++, pmd_idx++) {
 			unsigned int address = pfn * PAGE_SIZE + PAGE_OFFSET;
 
-			/* Map with big pages if possible, otherwise create normal page tables. */
+			/* Map with big pages if possible, otherwise
+			   create normal page tables. */
 			if (cpu_has_pse) {
-				unsigned int address2 = (pfn + PTRS_PER_PTE - 1) * PAGE_SIZE + PAGE_OFFSET + PAGE_SIZE-1;
-				if (is_kernel_text(address) || is_kernel_text(address2))
-					set_pmd(pmd, pfn_pmd(pfn, PAGE_KERNEL_LARGE_EXEC));
-				else
-					set_pmd(pmd, pfn_pmd(pfn, PAGE_KERNEL_LARGE));
+				unsigned int address2;
+				pgprot_t prot = PAGE_KERNEL_LARGE;
+
+				address2 = (pfn + PTRS_PER_PTE - 1) * PAGE_SIZE +
+					PAGE_OFFSET + PAGE_SIZE-1;
+
+				if (is_kernel_text(address) ||
+				    is_kernel_text(address2))
+					prot = PAGE_KERNEL_LARGE_EXEC;
+
+				set_pmd(pmd, pfn_pmd(pfn, prot));
 
 				pfn += PTRS_PER_PTE;
 			} else {
@@ -183,10 +192,12 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base)
 				for (pte_ofs = 0;
 				     pte_ofs < PTRS_PER_PTE && pfn < max_low_pfn;
 				     pte++, pfn++, pte_ofs++, address += PAGE_SIZE) {
+					pgprot_t prot = PAGE_KERNEL;
+
 					if (is_kernel_text(address))
-						set_pte(pte, pfn_pte(pfn, PAGE_KERNEL_EXEC));
-					else
-						set_pte(pte, pfn_pte(pfn, PAGE_KERNEL));
+						prot = PAGE_KERNEL_EXEC;
+
+					set_pte(pte, pfn_pte(pfn, prot));
 				}
 			}
 		}
-- 
cgit v1.2.3-59-g8ed1b


From 675a0813609f9097e323261b1cc4b9dc3f50d40b Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:31:10 +0100
Subject: x86: unify mmap_{32|64}.c

mmap_is_ia32 always true for X86_32, or while emulating IA32 on X86_64

Randomization not supported on X86_32 in legacy layout.  Both layouts allow
randomization on X86_64.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/Makefile_32 |   2 +-
 arch/x86/mm/Makefile_64 |   3 +-
 arch/x86/mm/mmap.c      | 123 ++++++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/mm/mmap_32.c   |  81 -------------------------------
 arch/x86/mm/mmap_64.c   | 116 ---------------------------------------------
 5 files changed, 125 insertions(+), 200 deletions(-)
 create mode 100644 arch/x86/mm/mmap.c
 delete mode 100644 arch/x86/mm/mmap_32.c
 delete mode 100644 arch/x86/mm/mmap_64.c

(limited to 'arch')

diff --git a/arch/x86/mm/Makefile_32 b/arch/x86/mm/Makefile_32
index 362b4ad082de..a01aca79dc69 100644
--- a/arch/x86/mm/Makefile_32
+++ b/arch/x86/mm/Makefile_32
@@ -2,7 +2,7 @@
 # Makefile for the linux i386-specific parts of the memory manager.
 #
 
-obj-y	:= init_32.o pgtable_32.o fault_32.o ioremap_32.o extable_32.o pageattr_32.o mmap_32.o
+obj-y	:= init_32.o pgtable_32.o fault_32.o ioremap_32.o extable_32.o pageattr_32.o mmap.o
 
 obj-$(CONFIG_NUMA) += discontig_32.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
diff --git a/arch/x86/mm/Makefile_64 b/arch/x86/mm/Makefile_64
index d18baed54fc6..b5a74486c3aa 100644
--- a/arch/x86/mm/Makefile_64
+++ b/arch/x86/mm/Makefile_64
@@ -2,9 +2,8 @@
 # Makefile for the linux x86_64-specific parts of the memory manager.
 #
 
-obj-y	 := init_64.o fault_64.o ioremap_64.o extable_64.o pageattr_64.o mmap_64.o
+obj-y	 := init_64.o fault_64.o ioremap_64.o extable_64.o pageattr_64.o mmap.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_NUMA) += numa_64.o
 obj-$(CONFIG_K8_NUMA) += k8topology_64.o
 obj-$(CONFIG_ACPI_NUMA) += srat_64.o
-obj-$(CONFIG_IA32_EMULATION) += mmap_32.o
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
new file mode 100644
index 000000000000..56fe7124fbec
--- /dev/null
+++ b/arch/x86/mm/mmap.c
@@ -0,0 +1,123 @@
+/*
+ * Flexible mmap layout support
+ *
+ * Based on code by Ingo Molnar and Andi Kleen, copyrighted
+ * as follows:
+ *
+ * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
+ * All Rights Reserved.
+ * Copyright 2005 Andi Kleen, SUSE Labs.
+ * Copyright 2007 Jiri Kosina, SUSE Labs.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/personality.h>
+#include <linux/mm.h>
+#include <linux/random.h>
+#include <linux/limits.h>
+#include <linux/sched.h>
+
+/*
+ * Top of mmap area (just below the process stack).
+ *
+ * Leave an at least ~128 MB hole.
+ */
+#define MIN_GAP (128*1024*1024)
+#define MAX_GAP (TASK_SIZE/6*5)
+
+/*
+ * True on X86_32 or when emulating IA32 on X86_64
+ */
+static int mmap_is_ia32(void)
+{
+#ifdef CONFIG_X86_32
+	return 1;
+#endif
+#ifdef CONFIG_IA32_EMULATION
+	if (test_thread_flag(TIF_IA32))
+		return 1;
+#endif
+	return 0;
+}
+
+static int mmap_is_legacy(void)
+{
+	if (current->personality & ADDR_COMPAT_LAYOUT)
+		return 1;
+
+	if (current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY)
+		return 1;
+
+	return sysctl_legacy_va_layout;
+}
+
+static unsigned long mmap_rnd(void)
+{
+	unsigned long rnd = 0;
+
+	/*
+	*  8 bits of randomness in 32bit mmaps, 20 address space bits
+	* 28 bits of randomness in 64bit mmaps, 40 address space bits
+	*/
+	if (current->flags & PF_RANDOMIZE) {
+		if (mmap_is_ia32())
+			rnd = (long)get_random_int() % (1<<8);
+		else
+			rnd = (long)(get_random_int() % (1<<28));
+	}
+	return rnd << PAGE_SHIFT;
+}
+
+static unsigned long mmap_base(void)
+{
+	unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;
+
+	if (gap < MIN_GAP)
+		gap = MIN_GAP;
+	else if (gap > MAX_GAP)
+		gap = MAX_GAP;
+
+	return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
+}
+
+/*
+ * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64
+ * does, but not when emulating X86_32
+ */
+static unsigned long mmap_legacy_base(void)
+{
+	if (mmap_is_ia32())
+		return TASK_UNMAPPED_BASE;
+	else
+		return TASK_UNMAPPED_BASE + mmap_rnd();
+}
+
+/*
+ * This function, called very early during the creation of a new
+ * process VM image, sets up which VM layout function to use:
+ */
+void arch_pick_mmap_layout(struct mm_struct *mm)
+{
+	if (mmap_is_legacy()) {
+		mm->mmap_base = mmap_legacy_base();
+		mm->get_unmapped_area = arch_get_unmapped_area;
+		mm->unmap_area = arch_unmap_area;
+	} else {
+		mm->mmap_base = mmap_base();
+		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+		mm->unmap_area = arch_unmap_area_topdown;
+	}
+}
diff --git a/arch/x86/mm/mmap_32.c b/arch/x86/mm/mmap_32.c
deleted file mode 100644
index d490662e4af4..000000000000
--- a/arch/x86/mm/mmap_32.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- *  linux/arch/i386/mm/mmap.c
- *
- *  flexible mmap layout support
- *
- * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- *
- * Started by Ingo Molnar <mingo@elte.hu>
- */
-
-#include <linux/personality.h>
-#include <linux/mm.h>
-#include <linux/random.h>
-#include <linux/sched.h>
-
-/*
- * Top of mmap area (just below the process stack).
- *
- * Leave an at least ~128 MB hole.
- */
-#define MIN_GAP (128*1024*1024)
-#define MAX_GAP (TASK_SIZE/6*5)
-
-static inline unsigned long mmap_base(struct mm_struct *mm)
-{
-	unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;
-	unsigned long random_factor = 0;
-
-	if (current->flags & PF_RANDOMIZE)
-		random_factor = get_random_int() % (1024*1024);
-
-	if (gap < MIN_GAP)
-		gap = MIN_GAP;
-	else if (gap > MAX_GAP)
-		gap = MAX_GAP;
-
-	return PAGE_ALIGN(TASK_SIZE - gap - random_factor);
-}
-
-/*
- * This function, called very early during the creation of a new
- * process VM image, sets up which VM layout function to use:
- */
-#ifdef CONFIG_X86_32
-void arch_pick_mmap_layout(struct mm_struct *mm)
-#else
-void ia32_pick_mmap_layout(struct mm_struct *mm)
-#endif
-{
-	/*
-	 * Fall back to the standard layout if the personality
-	 * bit is set, or if the expected stack growth is unlimited:
-	 */
-	if (sysctl_legacy_va_layout ||
-	    (current->personality & ADDR_COMPAT_LAYOUT) ||
-	    current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY) {
-		mm->mmap_base = TASK_UNMAPPED_BASE;
-		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
-	} else {
-		mm->mmap_base = mmap_base(mm);
-		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
-	}
-}
diff --git a/arch/x86/mm/mmap_64.c b/arch/x86/mm/mmap_64.c
deleted file mode 100644
index 119bf34ec529..000000000000
--- a/arch/x86/mm/mmap_64.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- *  linux/arch/x86-64/mm/mmap.c
- *
- *  flexible mmap layout support
- *
- * Based on code by Ingo Molnar and Andi Kleen, copyrighted
- * as follows:
- *
- * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
- * All Rights Reserved.
- * Copyright 2005 Andi Kleen, SUSE Labs.
- * Copyright 2007 Jiri Kosina, SUSE Labs.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- */
-
-#include <linux/personality.h>
-#include <linux/mm.h>
-#include <linux/random.h>
-#include <linux/limits.h>
-#include <linux/sched.h>
-#include <asm/ia32.h>
-
-/*
- * Top of mmap area (just below the process stack).
- *
- * Leave an at least ~128 MB hole.
- */
-#define MIN_GAP (128*1024*1024)
-#define MAX_GAP (TASK_SIZE/6*5)
-
-static unsigned long mmap_base(void)
-{
-	unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;
-
-	if (gap < MIN_GAP)
-		gap = MIN_GAP;
-	else if (gap > MAX_GAP)
-		gap = MAX_GAP;
-
-	return TASK_SIZE - (gap & PAGE_MASK);
-}
-
-static int mmap_is_32(void)
-{
-#ifdef CONFIG_IA32_EMULATION
-	if (test_thread_flag(TIF_IA32))
-		return 1;
-#endif
-	return 0;
-}
-
-static int mmap_is_legacy(void)
-{
-	if (current->personality & ADDR_COMPAT_LAYOUT)
-		return 1;
-
-	if (current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY)
-		return 1;
-
-	return sysctl_legacy_va_layout;
-}
-
-/*
- * This function, called very early during the creation of a new
- * process VM image, sets up which VM layout function to use:
- */
-void arch_pick_mmap_layout(struct mm_struct *mm)
-{
-	int rnd = 0;
-	if (current->flags & PF_RANDOMIZE) {
-		/*
-		 * Add 28bit randomness which is about 40bits of address space
-		 * because mmap base has to be page aligned.
-		 * or ~1/128 of the total user VM
-		 * (total user address space is 47bits)
-		 */
-		rnd = get_random_int() & 0xfffffff;
-	}
-
-	/*
-	 * Fall back to the standard layout if the personality
-	 * bit is set, or if the expected stack growth is unlimited:
-	 */
-	if (mmap_is_32()) {
-#ifdef CONFIG_IA32_EMULATION
-		/* ia32_pick_mmap_layout has its own. */
-		return ia32_pick_mmap_layout(mm);
-#endif
-	} else if (mmap_is_legacy()) {
-		mm->mmap_base = TASK_UNMAPPED_BASE;
-		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
-	} else {
-		mm->mmap_base = mmap_base();
-		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
-		if (current->flags & PF_RANDOMIZE)
-			rnd = -rnd;
-	}
-	if (current->flags & PF_RANDOMIZE)
-		mm->mmap_base += ((long)rnd) << PAGE_SHIFT;
-}
-- 
cgit v1.2.3-59-g8ed1b


From 21db5584f955652a6e34afa7d3dbd72dd6c82a89 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:10 +0100
Subject: x86: export math_state_restore

Export math_state_restore symbol, so it can be used for hypervisors.
They are commonly loaded as modules (lguest being an example).

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/traps_64.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 965f2cc3a013..1a12a81fdb1b 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -1074,6 +1074,7 @@ asmlinkage void math_state_restore(void)
 	task_thread_info(me)->status |= TS_USEDFPU;
 	me->fpu_counter++;
 }
+EXPORT_SYMBOL_GPL(math_state_restore);
 
 void __init trap_init(void)
 {
-- 
cgit v1.2.3-59-g8ed1b


From 70fd93c9d9e07dd2ea4465df76a0ddd414fd21ac Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:10 +0100
Subject: x86: export cpu_gdt_descr

With paravirualization, hypervisors needs to handle the gdt,
that was right to this point only used at very early
inialization code. Hypervisors (lguest being the current case)
are commonly modules, so make it an export

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/x8664_ksyms_64.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
index e28b533674dd..a66e9c1a0537 100644
--- a/arch/x86/kernel/x8664_ksyms_64.c
+++ b/arch/x86/kernel/x8664_ksyms_64.c
@@ -8,6 +8,7 @@
 #include <asm/processor.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
+#include <asm/desc.h>
 
 EXPORT_SYMBOL(kernel_thread);
 
@@ -53,3 +54,8 @@ EXPORT_SYMBOL(init_level4_pgt);
 EXPORT_SYMBOL(load_gs_index);
 
 EXPORT_SYMBOL(_proxy_pda);
+
+#ifdef CONFIG_PARAVIRT
+/* Virtualized guests may want to use it */
+EXPORT_SYMBOL_GPL(cpu_gdt_descr);
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From 49a697871e2edcbc9cc682466bc4f2316b854d23 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:10 +0100
Subject: x86: turn priviled operation into a macro in head_64.S

under paravirt, read cr2 cannot be issued directly anymore.
So wrap it in a macro, defined to the operation itself in case
paravirt is off, but to something else if we have paravirt
in the game

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/head_64.S | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index b6167fe3330e..c31b1c96a9d3 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -19,6 +19,13 @@
 #include <asm/msr.h>
 #include <asm/cache.h>
 
+#ifdef CONFIG_PARAVIRT
+#include <asm/asm-offsets.h>
+#include <asm/paravirt.h>
+#else
+#define GET_CR2_INTO_RCX movq %cr2, %rcx
+#endif
+
 /* we are not able to switch in one step to the final KERNEL ADRESS SPACE
  * because we need identity-mapped pages.
  *
@@ -267,7 +274,7 @@ ENTRY(early_idt_handler)
 	xorl %eax,%eax
 	movq 8(%rsp),%rsi	# get rip
 	movq (%rsp),%rdx
-	movq %cr2,%rcx
+	GET_CR2_INTO_RCX
 	leaq early_idt_msg(%rip),%rdi
 	call early_printk
 	cmpl $2,early_recursion_flag(%rip)
-- 
cgit v1.2.3-59-g8ed1b


From ee238e5ca66858f80170f87724f84d67183b069a Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:10 +0100
Subject: x86: prepare time related functions for paravirt

This patch add provisions for time related functions so they
can be later replaced by paravirt versions.

it basically encloses {g,s}et_wallclock inside the
already existent functions update_persistent_clock and
read_persistent_clock, and defines {s,g}et_wallclock
to the core of such functions.

it also allow for a later-on-game time initialization, as done
by i386. Paravirt guests can set a function to do their own
initialization this way.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/time_64.c | 12 +++++++++---
 include/asm-x86/time.h    | 26 +++++++++++++++++++++-----
 2 files changed, 30 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index bf0bcc9bb001..91d4d495904e 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -21,6 +21,8 @@
 #include <asm/hpet.h>
 #include <asm/nmi.h>
 #include <asm/vgtod.h>
+#include <asm/time.h>
+#include <asm/timer.h>
 
 volatile unsigned long __jiffies __section_jiffies = INITIAL_JIFFIES;
 
@@ -54,7 +56,7 @@ static irqreturn_t timer_event_interrupt(int irq, void *dev_id)
 /* calibrate_cpu is used on systems with fixed rate TSCs to determine
  * processor frequency */
 #define TICK_COUNT 100000000
-static unsigned int __init tsc_calibrate_cpu_khz(void)
+unsigned long __init native_calculate_cpu_khz(void)
 {
 	int tsc_start, tsc_now;
 	int i, no_ctr_free;
@@ -104,20 +106,23 @@ static struct irqaction irq0 = {
 	.name		= "timer"
 };
 
-void __init time_init(void)
+void __init hpet_time_init(void)
 {
 	if (!hpet_enable())
 		setup_pit_timer();
 
 	setup_irq(0, &irq0);
+}
 
+void __init time_init(void)
+{
 	tsc_calibrate();
 
 	cpu_khz = tsc_khz;
 	if (cpu_has(&boot_cpu_data, X86_FEATURE_CONSTANT_TSC) &&
 		boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
 		boot_cpu_data.x86 == 16)
-		cpu_khz = tsc_calibrate_cpu_khz();
+		cpu_khz = calculate_cpu_khz();
 
 	if (unsynchronized_tsc())
 		mark_tsc_unstable("TSCs unsynchronized");
@@ -130,4 +135,5 @@ void __init time_init(void)
 	printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n",
 		cpu_khz / 1000, cpu_khz % 1000);
 	init_tsc_clocksource();
+	late_time_init = choose_time_init();
 }
diff --git a/include/asm-x86/time.h b/include/asm-x86/time.h
index b3f94cd81ac6..68779b048a3e 100644
--- a/include/asm-x86/time.h
+++ b/include/asm-x86/time.h
@@ -1,8 +1,12 @@
-#ifndef _ASMi386_TIME_H
-#define _ASMi386_TIME_H
+#ifndef _ASMX86_TIME_H
+#define _ASMX86_TIME_H
+
+extern void (*late_time_init)(void);
+extern void hpet_time_init(void);
 
-#include <linux/efi.h>
 #include <asm/mc146818rtc.h>
+#ifdef CONFIG_X86_32
+#include <linux/efi.h>
 
 static inline unsigned long native_get_wallclock(void)
 {
@@ -28,8 +32,20 @@ static inline int native_set_wallclock(unsigned long nowtime)
 	return retval;
 }
 
-extern void (*late_time_init)(void);
-extern void hpet_time_init(void);
+#else
+extern void native_time_init_hook(void);
+
+static inline unsigned long native_get_wallclock(void)
+{
+	return mach_get_cmos_time();
+}
+
+static inline int native_set_wallclock(unsigned long nowtime)
+{
+	return mach_set_rtc_mmss(nowtime);
+}
+
+#endif
 
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
-- 
cgit v1.2.3-59-g8ed1b


From ba082427ae6ffbf8e48a26ae4f72f4501a6b80c1 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:10 +0100
Subject: x86: tweak io_64.h for paravirt.

We need something here because we can't call in and out instructions
directly. However, we have to be careful, because no indirections are
allowed in misc_64.c , and paravirt_ops is a kind of one. So just
call it directly there

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/misc_64.c |  6 ++++++
 include/asm-x86/io_64.h            | 30 +++++++++++++++++++++++-------
 2 files changed, 29 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/misc_64.c b/arch/x86/boot/compressed/misc_64.c
index 43e5fcc37be9..7d8338e21b00 100644
--- a/arch/x86/boot/compressed/misc_64.c
+++ b/arch/x86/boot/compressed/misc_64.c
@@ -9,6 +9,12 @@
  * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996
  */
 
+/*
+ * we have to be careful, because no indirections are allowed here, and
+ * paravirt_ops is a kind of one. As it will only run in baremetal anyway,
+ * we just keep it from happening
+ */
+#undef CONFIG_PARAVIRT
 #define _LINUX_STRING_H_ 1
 #define __LINUX_BITMAP_H 1
 
diff --git a/include/asm-x86/io_64.h b/include/asm-x86/io_64.h
index dbcc03aa1c6a..fef0ce2ced81 100644
--- a/include/asm-x86/io_64.h
+++ b/include/asm-x86/io_64.h
@@ -40,6 +40,10 @@ extern void native_io_delay(void);
 extern int io_delay_type;
 extern void io_delay_init(void);
 
+#if defined(CONFIG_PARAVIRT)
+#include <asm/paravirt.h>
+#else
+
 static inline void slow_down_io(void)
 {
 	native_io_delay();
@@ -49,6 +53,7 @@ static inline void slow_down_io(void)
 	native_io_delay();
 #endif
 }
+#endif
 
 /*
  * Talk about misusing macros..
@@ -57,21 +62,32 @@ static inline void slow_down_io(void)
 static inline void out##s(unsigned x value, unsigned short port) {
 
 #define __OUT2(s,s1,s2) \
-__asm__ __volatile__ ("out" #s " %" s1 "0,%" s2 "1" : : "a" (value), "Nd" (port))
+__asm__ __volatile__ ("out" #s " %" s1 "0,%" s2 "1"
+
+#ifndef REALLY_SLOW_IO
+#define REALLY_SLOW_IO
+#define UNSET_REALLY_SLOW_IO
+#endif
 
 #define __OUT(s,s1,x) \
-__OUT1(s,x) __OUT2(s,s1,"w"); } \
-__OUT1(s##_p,x) __OUT2(s,s1,"w"); slow_down_io(); }
+__OUT1(s,x) __OUT2(s,s1,"w") : : "a" (value), "Nd" (port)); } \
+__OUT1(s##_p, x) __OUT2(s, s1, "w") : : "a" (value), "Nd" (port)); \
+		slow_down_io(); }
 
 #define __IN1(s) \
 static inline RETURN_TYPE in##s(unsigned short port) { RETURN_TYPE _v;
 
 #define __IN2(s,s1,s2) \
-__asm__ __volatile__ ("in" #s " %" s2 "1,%" s1 "0" : "=a" (_v) : "Nd" (port))
+__asm__ __volatile__ ("in" #s " %" s2 "1,%" s1 "0"
+
+#define __IN(s,s1,i...) \
+__IN1(s) __IN2(s, s1, "w") : "=a" (_v) : "Nd" (port), ##i); return _v; } \
+__IN1(s##_p) __IN2(s, s1, "w") : "=a" (_v) : "Nd" (port), ##i);	  \
+				slow_down_io(); return _v; }
 
-#define __IN(s,s1) \
-__IN1(s) __IN2(s,s1,"w"); return _v; } \
-__IN1(s##_p) __IN2(s,s1,"w"); slow_down_io(); return _v; }
+#ifdef UNSET_REALLY_SLOW_IO
+#undef REALLY_SLOW_IO
+#endif
 
 #define __INS(s) \
 static inline void ins##s(unsigned short port, void * addr, unsigned long count) \
-- 
cgit v1.2.3-59-g8ed1b


From 746ef0cd0c7190d570c65b8e39a4ac67550ae43a Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:11 +0100
Subject: x86: prepare 64-bit architecture initialization for paravirt

This patch prepares the x86_64 architecture initialization for
paravirt. It requires a memory initialization step, which is done
by implementing 64-bit version for machine_specific_memory_setup,
and putting an ARCH_SETUP hook, for guest-dependent initialization.
This last step is done akin to i386

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/e820_64.c    |  9 +++++++--
 arch/x86/kernel/setup_64.c   | 28 +++++++++++++++++++++++++++-
 arch/x86/kernel/smpboot_64.c |  4 ++--
 include/asm-x86/setup.h      | 11 ++++++++---
 4 files changed, 44 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index 8e7321101a0a..abc473bcabe8 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -638,8 +638,10 @@ static void early_panic(char *msg)
 	panic(msg);
 }
 
-void __init setup_memory_region(void)
+/* We're not void only for x86 32-bit compat */
+char * __init machine_specific_memory_setup(void)
 {
+	char *who = "BIOS-e820";
 	/*
 	 * Try to copy the BIOS-supplied E820-map.
 	 *
@@ -650,7 +652,10 @@ void __init setup_memory_region(void)
 	if (copy_e820_map(boot_params.e820_map, boot_params.e820_entries) < 0)
 		early_panic("Cannot find a valid memory map");
 	printk(KERN_INFO "BIOS-provided physical RAM map:\n");
-	e820_print_map("BIOS-e820");
+	e820_print_map(who);
+
+	/* In case someone cares... */
+	return who;
 }
 
 static int __init parse_memopt(char *p)
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index f2b131ef844e..8dd110d93e73 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -39,6 +39,7 @@
 #include <linux/dmi.h>
 #include <linux/dma-mapping.h>
 #include <linux/ctype.h>
+#include <linux/uaccess.h>
 
 #include <asm/mtrr.h>
 #include <asm/uaccess.h>
@@ -62,6 +63,12 @@
 #include <asm/mce.h>
 #include <asm/ds.h>
 
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
+#define ARCH_SETUP
+#endif
+
 /*
  * Machine setup..
  */
@@ -246,6 +253,16 @@ static void discover_ebda(void)
 	 * 4K EBDA area at 0x40E
 	 */
 	ebda_addr = *(unsigned short *)__va(EBDA_ADDR_POINTER);
+	/*
+	 * There can be some situations, like paravirtualized guests,
+	 * in which there is no available ebda information. In such
+	 * case, just skip it
+	 */
+	if (!ebda_addr) {
+		ebda_size = 0;
+		return;
+	}
+
 	ebda_addr <<= 4;
 
 	ebda_size = *(unsigned short *)__va(ebda_addr);
@@ -259,6 +276,12 @@ static void discover_ebda(void)
 		ebda_size = 64*1024;
 }
 
+/* Overridden in paravirt.c if CONFIG_PARAVIRT */
+void __attribute__((weak)) memory_setup(void)
+{
+       machine_specific_memory_setup();
+}
+
 void __init setup_arch(char **cmdline_p)
 {
 	unsigned i;
@@ -276,7 +299,10 @@ void __init setup_arch(char **cmdline_p)
 	rd_prompt = ((boot_params.hdr.ram_size & RAMDISK_PROMPT_FLAG) != 0);
 	rd_doload = ((boot_params.hdr.ram_size & RAMDISK_LOAD_FLAG) != 0);
 #endif
-	setup_memory_region();
+
+	ARCH_SETUP
+
+	memory_setup();
 	copy_edd();
 
 	if (!boot_params.hdr.root_flags)
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index c3f2736ba530..cb73c4da87fc 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -369,7 +369,7 @@ void __cpuinit start_secondary(void)
 
 	unlock_ipi_call_lock();
 
-	setup_secondary_APIC_clock();
+	setup_secondary_clock();
 
 	cpu_idle();
 }
@@ -923,7 +923,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 	 * Set up local APIC timer on boot CPU.
 	 */
 
-	setup_boot_APIC_clock();
+	setup_boot_clock();
 }
 
 /*
diff --git a/include/asm-x86/setup.h b/include/asm-x86/setup.h
index 24d786e07b49..071e054abd82 100644
--- a/include/asm-x86/setup.h
+++ b/include/asm-x86/setup.h
@@ -3,6 +3,13 @@
 
 #define COMMAND_LINE_SIZE 2048
 
+#ifndef __ASSEMBLY__
+char *machine_specific_memory_setup(void);
+#ifndef CONFIG_PARAVIRT
+#define paravirt_post_allocator_init()	do {} while (0)
+#endif
+#endif /* __ASSEMBLY__ */
+
 #ifdef __KERNEL__
 
 #ifdef __i386__
@@ -51,9 +58,7 @@ void __init add_memory_region(unsigned long long start,
 
 extern unsigned long init_pg_tables_end;
 
-#ifndef CONFIG_PARAVIRT
-#define paravirt_post_allocator_init()	do {} while (0)
-#endif
+
 
 #endif /* __i386__ */
 #endif /* _SETUP */
-- 
cgit v1.2.3-59-g8ed1b


From 6842ef0e85a9cc1295f3ef933a230f863b01eb0f Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:11 +0100
Subject: x86: unify desc_struct

This patch aims to make the access of struct desc_struct variables
equal across architectures. In this patch, I unify the i386 and x86_64
versions under an anonymous union, keeping the way they are accessed
untouched (a and b for 32-bit code, individual bit-fields for 64-bit).

This solution is not beautiful, but will allow us to integrate common
code that differed by the way descriptors were used. This is to be viewed
incrementally. There's simply too much code to be fixed at once.

In the future, goal is to set up in a single way of acessing
the desc_struct fields.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apm_32.c       |  2 +-
 arch/x86/kernel/cpu/common.c   | 35 +++++++++++++++++++++--------------
 arch/x86/kernel/process_64.c   |  2 +-
 arch/x86/kernel/traps_32.c     |  3 ++-
 include/asm-x86/desc_defs.h    | 25 +++++++++++++++++--------
 include/asm-x86/lguest.h       |  4 ++--
 include/asm-x86/processor_32.h |  5 +----
 7 files changed, 45 insertions(+), 31 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 7496c2e4b6ae..e32f6c37db9b 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -405,7 +405,7 @@ static DECLARE_WAIT_QUEUE_HEAD(apm_waitqueue);
 static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue);
 static struct apm_user *	user_list;
 static DEFINE_SPINLOCK(user_list_lock);
-static const struct desc_struct	bad_bios_desc = { 0, 0x00409200 };
+static const struct desc_struct	bad_bios_desc = { { { 0, 0x00409200 } } };
 
 static const char		driver_version[] = "1.16ac";	/* no spaces */
 
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 235cd615b89d..4f9e31912a25 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -22,31 +22,38 @@
 #include "cpu.h"
 
 DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = {
-	[GDT_ENTRY_KERNEL_CS] = { 0x0000ffff, 0x00cf9a00 },
-	[GDT_ENTRY_KERNEL_DS] = { 0x0000ffff, 0x00cf9200 },
-	[GDT_ENTRY_DEFAULT_USER_CS] = { 0x0000ffff, 0x00cffa00 },
-	[GDT_ENTRY_DEFAULT_USER_DS] = { 0x0000ffff, 0x00cff200 },
+	[GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00cf9a00 } } },
+	[GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9200 } } },
+	[GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00cffa00 } } },
+	[GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff200 } } },
 	/*
 	 * Segments used for calling PnP BIOS have byte granularity.
 	 * They code segments and data segments have fixed 64k limits,
 	 * the transfer segment sizes are set at run time.
 	 */
-	[GDT_ENTRY_PNPBIOS_CS32] = { 0x0000ffff, 0x00409a00 },/* 32-bit code */
-	[GDT_ENTRY_PNPBIOS_CS16] = { 0x0000ffff, 0x00009a00 },/* 16-bit code */
-	[GDT_ENTRY_PNPBIOS_DS] = { 0x0000ffff, 0x00009200 }, /* 16-bit data */
-	[GDT_ENTRY_PNPBIOS_TS1] = { 0x00000000, 0x00009200 },/* 16-bit data */
-	[GDT_ENTRY_PNPBIOS_TS2] = { 0x00000000, 0x00009200 },/* 16-bit data */
+	/* 32-bit code */
+	[GDT_ENTRY_PNPBIOS_CS32] = { { { 0x0000ffff, 0x00409a00 } } },
+	/* 16-bit code */
+	[GDT_ENTRY_PNPBIOS_CS16] = { { { 0x0000ffff, 0x00009a00 } } },
+	/* 16-bit data */
+	[GDT_ENTRY_PNPBIOS_DS] = { { { 0x0000ffff, 0x00009200 } } },
+	/* 16-bit data */
+	[GDT_ENTRY_PNPBIOS_TS1] = { { { 0x00000000, 0x00009200 } } },
+	/* 16-bit data */
+	[GDT_ENTRY_PNPBIOS_TS2] = { { { 0x00000000, 0x00009200 } } },
 	/*
 	 * The APM segments have byte granularity and their bases
 	 * are set at run time.  All have 64k limits.
 	 */
-	[GDT_ENTRY_APMBIOS_BASE] = { 0x0000ffff, 0x00409a00 },/* 32-bit code */
+	/* 32-bit code */
+	[GDT_ENTRY_APMBIOS_BASE] = { { { 0x0000ffff, 0x00409a00 } } },
 	/* 16-bit code */
-	[GDT_ENTRY_APMBIOS_BASE+1] = { 0x0000ffff, 0x00009a00 },
-	[GDT_ENTRY_APMBIOS_BASE+2] = { 0x0000ffff, 0x00409200 }, /* data */
+	[GDT_ENTRY_APMBIOS_BASE+1] = { { { 0x0000ffff, 0x00009a00 } } },
+	/* data */
+	[GDT_ENTRY_APMBIOS_BASE+2] = { { { 0x0000ffff, 0x00409200 } } },
 
-	[GDT_ENTRY_ESPFIX_SS] = { 0x00000000, 0x00c09200 },
-	[GDT_ENTRY_PERCPU] = { 0x00000000, 0x00000000 },
+	[GDT_ENTRY_ESPFIX_SS] = { { { 0x00000000, 0x00c09200 } } },
+	[GDT_ENTRY_PERCPU] = { { { 0x00000000, 0x00000000 } } },
 } };
 EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
 
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 843bf0c978a4..86c310acc989 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -455,7 +455,7 @@ static inline void set_32bit_tls(struct task_struct *t, int tls, u32 addr)
 		.limit_in_pages = 1,
 		.useable = 1,
 	};
-	struct n_desc_struct *desc = (void *)t->thread.tls_array;
+	struct desc_struct *desc = (void *)t->thread.tls_array;
 	desc += tls;
 	desc->a = LDT_entry_a(&ud);
 	desc->b = LDT_entry_b(&ud);
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 57491942cc4e..0d45017ed824 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -76,7 +76,8 @@ char ignore_fpu_irq = 0;
  * F0 0F bug workaround.. We have a special link segment
  * for this.
  */
-struct desc_struct idt_table[256] __attribute__((__section__(".data.idt"))) = { {0, 0}, };
+struct desc_struct idt_table[256]
+	__attribute__((__section__(".data.idt"))) = { { { { 0, 0 } } }, };
 
 asmlinkage void divide_error(void);
 asmlinkage void debug(void);
diff --git a/include/asm-x86/desc_defs.h b/include/asm-x86/desc_defs.h
index 089004070099..de47eb0a23aa 100644
--- a/include/asm-x86/desc_defs.h
+++ b/include/asm-x86/desc_defs.h
@@ -11,17 +11,26 @@
 
 #include <linux/types.h>
 
+/*
+ * FIXME: Acessing the desc_struct through its fields is more elegant,
+ * and should be the one valid thing to do. However, a lot of open code
+ * still touches the a and b acessors, and doing this allow us to do it
+ * incrementally. We keep the signature as a struct, rather than an union,
+ * so we can get rid of it transparently in the future -- glommer
+ */
 // 8 byte segment descriptor
 struct desc_struct {
-	u16 limit0;
-	u16 base0;
-	unsigned base1 : 8, type : 4, s : 1, dpl : 2, p : 1;
-	unsigned limit : 4, avl : 1, l : 1, d : 1, g : 1, base2 : 8;
-} __attribute__((packed));
+	union {
+		struct { unsigned int a, b; };
+		struct {
+			u16 limit0;
+			u16 base0;
+			unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1;
+			unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
+		};
 
-struct n_desc_struct {
-	unsigned int a,b;
-};
+	};
+} __attribute__((packed));
 
 enum {
 	GATE_INTERRUPT = 0xE,
diff --git a/include/asm-x86/lguest.h b/include/asm-x86/lguest.h
index ccd338460811..17c908c0ef1c 100644
--- a/include/asm-x86/lguest.h
+++ b/include/asm-x86/lguest.h
@@ -78,8 +78,8 @@ static inline void lguest_set_ts(void)
 }
 
 /* Full 4G segment descriptors, suitable for CS and DS. */
-#define FULL_EXEC_SEGMENT ((struct desc_struct){0x0000ffff, 0x00cf9b00})
-#define FULL_SEGMENT ((struct desc_struct){0x0000ffff, 0x00cf9300})
+#define FULL_EXEC_SEGMENT ((struct desc_struct){ { {0x0000ffff, 0x00cf9b00} } })
+#define FULL_SEGMENT ((struct desc_struct){ { {0x0000ffff, 0x00cf9300} } })
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index 9c0ab7f26bd9..bc48ad64de47 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -20,14 +20,11 @@
 #include <linux/cpumask.h>
 #include <linux/init.h>
 #include <asm/processor-flags.h>
+#include <asm/desc_defs.h>
 
 /* flag for disabling the tsc */
 extern int tsc_disable;
 
-struct desc_struct {
-	unsigned long a,b;
-};
-
 static inline int desc_empty(const void *ptr)
 {
 	const u32 *desc = ptr;
-- 
cgit v1.2.3-59-g8ed1b


From 6b68f01baa810e9f63fbf39e9d5c3ef1d94a966f Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:12 +0100
Subject: x86: unify struct desc_ptr

This patch unifies struct desc_ptr between i386 and x86_64.
They can be expressed in the exact same way in C code, only
having to change the name of one of them. As Xgt_desc_struct
is ugly and big, this is the one that goes away.

There's also a padding field in i386, but it is not really
needed in the C structure definition.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/asm-offsets_32.c   |  5 ++---
 arch/x86/kernel/cpu/common.c       |  2 +-
 arch/x86/kernel/doublefault_32.c   |  2 +-
 arch/x86/kernel/efi_32.c           |  4 ++--
 arch/x86/kernel/machine_kexec_32.c |  4 ++--
 arch/x86/kernel/reboot_32.c        |  2 +-
 arch/x86/lguest/boot.c             |  4 ++--
 arch/x86/xen/enlighten.c           | 10 +++++-----
 drivers/kvm/svm.c                  |  2 +-
 include/asm-x86/desc_32.h          | 16 +++++-----------
 include/asm-x86/lguest.h           |  8 ++++----
 include/asm-x86/paravirt.h         | 18 +++++++++---------
 include/asm-x86/processor_32.h     |  2 +-
 include/asm-x86/suspend_32.h       |  4 ++--
 14 files changed, 38 insertions(+), 45 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index 415313556708..afd84463b712 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -70,9 +70,8 @@ void foo(void)
 	OFFSET(TI_cpu, thread_info, cpu);
 	BLANK();
 
-	OFFSET(GDS_size, Xgt_desc_struct, size);
-	OFFSET(GDS_address, Xgt_desc_struct, address);
-	OFFSET(GDS_pad, Xgt_desc_struct, pad);
+	OFFSET(GDS_size, desc_ptr, size);
+	OFFSET(GDS_address, desc_ptr, address);
 	BLANK();
 
 	OFFSET(PT_EBX, pt_regs, bx);
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 4f9e31912a25..69507ae8a65b 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -649,7 +649,7 @@ struct pt_regs * __devinit idle_regs(struct pt_regs *regs)
  * it's on the real one. */
 void switch_to_new_gdt(void)
 {
-	struct Xgt_desc_struct gdt_descr;
+	struct desc_ptr gdt_descr;
 
 	gdt_descr.address = (long)get_cpu_gdt_table(smp_processor_id());
 	gdt_descr.size = GDT_SIZE - 1;
diff --git a/arch/x86/kernel/doublefault_32.c b/arch/x86/kernel/doublefault_32.c
index cc19a3ea403a..d16122a8e4eb 100644
--- a/arch/x86/kernel/doublefault_32.c
+++ b/arch/x86/kernel/doublefault_32.c
@@ -17,7 +17,7 @@ static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE];
 
 static void doublefault_fn(void)
 {
-	struct Xgt_desc_struct gdt_desc = {0, 0};
+	struct desc_ptr gdt_desc = {0, 0};
 	unsigned long gdt, tss;
 
 	store_gdt(&gdt_desc);
diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c
index e2be78f49399..863e8926f2bb 100644
--- a/arch/x86/kernel/efi_32.c
+++ b/arch/x86/kernel/efi_32.c
@@ -69,7 +69,7 @@ static void efi_call_phys_prelog(void) __acquires(efi_rt_lock)
 {
 	unsigned long cr4;
 	unsigned long temp;
-	struct Xgt_desc_struct gdt_descr;
+	struct desc_ptr gdt_descr;
 
 	spin_lock(&efi_rt_lock);
 	local_irq_save(efi_rt_eflags);
@@ -111,7 +111,7 @@ static void efi_call_phys_prelog(void) __acquires(efi_rt_lock)
 static void efi_call_phys_epilog(void) __releases(efi_rt_lock)
 {
 	unsigned long cr4;
-	struct Xgt_desc_struct gdt_descr;
+	struct desc_ptr gdt_descr;
 
 	gdt_descr.address = (unsigned long)get_cpu_gdt_table(0);
 	gdt_descr.size = GDT_SIZE - 1;
diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
index 11b935f4f886..c1cfd60639d4 100644
--- a/arch/x86/kernel/machine_kexec_32.c
+++ b/arch/x86/kernel/machine_kexec_32.c
@@ -32,7 +32,7 @@ static u32 kexec_pte1[1024] PAGE_ALIGNED;
 
 static void set_idt(void *newidt, __u16 limit)
 {
-	struct Xgt_desc_struct curidt;
+	struct desc_ptr curidt;
 
 	/* ia32 supports unaliged loads & stores */
 	curidt.size    = limit;
@@ -44,7 +44,7 @@ static void set_idt(void *newidt, __u16 limit)
 
 static void set_gdt(void *newgdt, __u16 limit)
 {
-	struct Xgt_desc_struct curgdt;
+	struct desc_ptr curgdt;
 
 	/* ia32 supports unaligned loads & stores */
 	curgdt.size    = limit;
diff --git a/arch/x86/kernel/reboot_32.c b/arch/x86/kernel/reboot_32.c
index bb1a0f889c5e..c3376fae639d 100644
--- a/arch/x86/kernel/reboot_32.c
+++ b/arch/x86/kernel/reboot_32.c
@@ -161,7 +161,7 @@ real_mode_gdt_entries [3] =
 	0x000092000100ffffULL	/* 16-bit real-mode 64k data at 0x00000100 */
 };
 
-static struct Xgt_desc_struct
+static struct desc_ptr
 real_mode_gdt = { sizeof (real_mode_gdt_entries) - 1, (long)real_mode_gdt_entries },
 real_mode_idt = { 0x3ff, 0 },
 no_idt = { 0, 0 };
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index c751e3c03e85..aa0bdd5fc4bb 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -229,7 +229,7 @@ static void lguest_write_idt_entry(struct desc_struct *dt,
 /* Changing to a different IDT is very rare: we keep the IDT up-to-date every
  * time it is written, so we can simply loop through all entries and tell the
  * Host about them. */
-static void lguest_load_idt(const struct Xgt_desc_struct *desc)
+static void lguest_load_idt(const struct desc_ptr *desc)
 {
 	unsigned int i;
 	struct desc_struct *idt = (void *)desc->address;
@@ -252,7 +252,7 @@ static void lguest_load_idt(const struct Xgt_desc_struct *desc)
  * hypercall and use that repeatedly to load a new IDT.  I don't think it
  * really matters, but wouldn't it be nice if they were the same?
  */
-static void lguest_load_gdt(const struct Xgt_desc_struct *desc)
+static void lguest_load_gdt(const struct desc_ptr *desc)
 {
 	BUG_ON((desc->size+1)/8 != GDT_ENTRIES);
 	hcall(LHCALL_LOAD_GDT, __pa(desc->address), GDT_ENTRIES, 0);
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index d81e8d709102..c32e0fd0f838 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -295,7 +295,7 @@ static void xen_set_ldt(const void *addr, unsigned entries)
 	xen_mc_issue(PARAVIRT_LAZY_CPU);
 }
 
-static void xen_load_gdt(const struct Xgt_desc_struct *dtr)
+static void xen_load_gdt(const struct desc_ptr *dtr)
 {
 	unsigned long *frames;
 	unsigned long va = dtr->address;
@@ -395,7 +395,7 @@ static int cvt_gate_to_trap(int vector, u32 low, u32 high,
 }
 
 /* Locations of each CPU's IDT */
-static DEFINE_PER_CPU(struct Xgt_desc_struct, idt_desc);
+static DEFINE_PER_CPU(struct desc_ptr, idt_desc);
 
 /* Set an IDT entry.  If the entry is part of the current IDT, then
    also update Xen. */
@@ -427,7 +427,7 @@ static void xen_write_idt_entry(struct desc_struct *dt, int entrynum,
 	preempt_enable();
 }
 
-static void xen_convert_trap_info(const struct Xgt_desc_struct *desc,
+static void xen_convert_trap_info(const struct desc_ptr *desc,
 				  struct trap_info *traps)
 {
 	unsigned in, out, count;
@@ -446,7 +446,7 @@ static void xen_convert_trap_info(const struct Xgt_desc_struct *desc,
 
 void xen_copy_trap_info(struct trap_info *traps)
 {
-	const struct Xgt_desc_struct *desc = &__get_cpu_var(idt_desc);
+	const struct desc_ptr *desc = &__get_cpu_var(idt_desc);
 
 	xen_convert_trap_info(desc, traps);
 }
@@ -454,7 +454,7 @@ void xen_copy_trap_info(struct trap_info *traps)
 /* Load a new IDT into Xen.  In principle this can be per-CPU, so we
    hold a spinlock to protect the static traps[] array (static because
    it avoids allocation, and saves stack space). */
-static void xen_load_idt(const struct Xgt_desc_struct *desc)
+static void xen_load_idt(const struct desc_ptr *desc)
 {
 	static DEFINE_SPINLOCK(lock);
 	static struct trap_info traps[257];
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index 4e04e49a2f1c..ced4ac1955db 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -290,7 +290,7 @@ static void svm_hardware_enable(void *garbage)
 #ifdef CONFIG_X86_64
 	struct desc_ptr gdt_descr;
 #else
-	struct Xgt_desc_struct gdt_descr;
+	struct desc_ptr gdt_descr;
 #endif
 	struct desc_struct *gdt;
 	int me = raw_smp_processor_id();
diff --git a/include/asm-x86/desc_32.h b/include/asm-x86/desc_32.h
index c547403f341d..bc5ca3453466 100644
--- a/include/asm-x86/desc_32.h
+++ b/include/asm-x86/desc_32.h
@@ -12,12 +12,6 @@
 
 #include <asm/mmu.h>
 
-struct Xgt_desc_struct {
-	unsigned short size;
-	unsigned long address __attribute__((packed));
-	unsigned short pad;
-} __attribute__ ((packed));
-
 struct gdt_page
 {
 	struct desc_struct gdt[GDT_ENTRIES];
@@ -29,7 +23,7 @@ static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
 	return per_cpu(gdt_page, cpu).gdt;
 }
 
-extern struct Xgt_desc_struct idt_descr;
+extern struct desc_ptr idt_descr;
 extern struct desc_struct idt_table[];
 extern void set_intr_gate(unsigned int irq, void * addr);
 
@@ -107,22 +101,22 @@ static inline void native_load_tr_desc(void)
 	asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
 }
 
-static inline void native_load_gdt(const struct Xgt_desc_struct *dtr)
+static inline void native_load_gdt(const struct desc_ptr *dtr)
 {
 	asm volatile("lgdt %0"::"m" (*dtr));
 }
 
-static inline void native_load_idt(const struct Xgt_desc_struct *dtr)
+static inline void native_load_idt(const struct desc_ptr *dtr)
 {
 	asm volatile("lidt %0"::"m" (*dtr));
 }
 
-static inline void native_store_gdt(struct Xgt_desc_struct *dtr)
+static inline void native_store_gdt(struct desc_ptr *dtr)
 {
 	asm ("sgdt %0":"=m" (*dtr));
 }
 
-static inline void native_store_idt(struct Xgt_desc_struct *dtr)
+static inline void native_store_idt(struct desc_ptr *dtr)
 {
 	asm ("sidt %0":"=m" (*dtr));
 }
diff --git a/include/asm-x86/lguest.h b/include/asm-x86/lguest.h
index 17c908c0ef1c..3585a1628b59 100644
--- a/include/asm-x86/lguest.h
+++ b/include/asm-x86/lguest.h
@@ -44,13 +44,13 @@ struct lguest_ro_state
 {
 	/* Host information we need to restore when we switch back. */
 	u32 host_cr3;
-	struct Xgt_desc_struct host_idt_desc;
-	struct Xgt_desc_struct host_gdt_desc;
+	struct desc_ptr host_idt_desc;
+	struct desc_ptr host_gdt_desc;
 	u32 host_sp;
 
 	/* Fields which are used when guest is running. */
-	struct Xgt_desc_struct guest_idt_desc;
-	struct Xgt_desc_struct guest_gdt_desc;
+	struct desc_ptr guest_idt_desc;
+	struct desc_ptr guest_gdt_desc;
 	struct i386_hw_tss guest_tss;
 	struct desc_struct guest_idt[IDT_ENTRIES];
 	struct desc_struct guest_gdt[GDT_ENTRIES];
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index e95c2a655165..0333fb6988b5 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -20,7 +20,7 @@
 
 struct page;
 struct thread_struct;
-struct Xgt_desc_struct;
+struct desc_ptr;
 struct tss_struct;
 struct mm_struct;
 struct desc_struct;
@@ -88,10 +88,10 @@ struct pv_cpu_ops {
 
 	/* Segment descriptor handling */
 	void (*load_tr_desc)(void);
-	void (*load_gdt)(const struct Xgt_desc_struct *);
-	void (*load_idt)(const struct Xgt_desc_struct *);
-	void (*store_gdt)(struct Xgt_desc_struct *);
-	void (*store_idt)(struct Xgt_desc_struct *);
+	void (*load_gdt)(const struct desc_ptr *);
+	void (*load_idt)(const struct desc_ptr *);
+	void (*store_gdt)(struct desc_ptr *);
+	void (*store_idt)(struct desc_ptr *);
 	void (*set_ldt)(const void *desc, unsigned entries);
 	unsigned long (*store_tr)(void);
 	void (*load_tls)(struct thread_struct *t, unsigned int cpu);
@@ -630,11 +630,11 @@ static inline void load_TR_desc(void)
 {
 	PVOP_VCALL0(pv_cpu_ops.load_tr_desc);
 }
-static inline void load_gdt(const struct Xgt_desc_struct *dtr)
+static inline void load_gdt(const struct desc_ptr *dtr)
 {
 	PVOP_VCALL1(pv_cpu_ops.load_gdt, dtr);
 }
-static inline void load_idt(const struct Xgt_desc_struct *dtr)
+static inline void load_idt(const struct desc_ptr *dtr)
 {
 	PVOP_VCALL1(pv_cpu_ops.load_idt, dtr);
 }
@@ -642,11 +642,11 @@ static inline void set_ldt(const void *addr, unsigned entries)
 {
 	PVOP_VCALL2(pv_cpu_ops.set_ldt, addr, entries);
 }
-static inline void store_gdt(struct Xgt_desc_struct *dtr)
+static inline void store_gdt(struct desc_ptr *dtr)
 {
 	PVOP_VCALL1(pv_cpu_ops.store_gdt, dtr);
 }
-static inline void store_idt(struct Xgt_desc_struct *dtr)
+static inline void store_idt(struct desc_ptr *dtr)
 {
 	PVOP_VCALL1(pv_cpu_ops.store_idt, dtr);
 }
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index bc48ad64de47..e5056ab9dd9f 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -707,7 +707,7 @@ extern void enable_sep_cpu(void);
 extern int sysenter_setup(void);
 
 /* Defined in head.S */
-extern struct Xgt_desc_struct early_gdt_descr;
+extern struct desc_ptr early_gdt_descr;
 
 extern void cpu_set_gdt(int);
 extern void switch_to_new_gdt(void);
diff --git a/include/asm-x86/suspend_32.h b/include/asm-x86/suspend_32.h
index a2520732ffd6..1bbda3ad7796 100644
--- a/include/asm-x86/suspend_32.h
+++ b/include/asm-x86/suspend_32.h
@@ -12,8 +12,8 @@ static inline int arch_prepare_suspend(void) { return 0; }
 struct saved_context {
   	u16 es, fs, gs, ss;
 	unsigned long cr0, cr2, cr3, cr4;
-	struct Xgt_desc_struct gdt;
-	struct Xgt_desc_struct idt;
+	struct desc_ptr gdt;
+	struct desc_ptr idt;
 	u16 ldt;
 	u16 tss;
 	unsigned long tr;
-- 
cgit v1.2.3-59-g8ed1b


From f6dc247cac1a8ee64e59019c3b948d23f3b1a36f Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:12 +0100
Subject: x86: change gdt acessor macro name

This patch changes the name of x86_64 macro used to access the per-cpu
gdt. It is now equal to the i386 version, which will allow code to be shared.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup64.c     |  2 +-
 arch/x86/kernel/suspend_64.c  |  2 +-
 arch/x86/kernel/vsyscall_64.c |  2 +-
 include/asm-x86/desc_64.h     | 10 +++++-----
 4 files changed, 8 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup64.c b/arch/x86/kernel/setup64.c
index 51297cca6b42..05cafcb94109 100644
--- a/arch/x86/kernel/setup64.c
+++ b/arch/x86/kernel/setup64.c
@@ -228,7 +228,7 @@ void __cpuinit cpu_init (void)
 	 * and set up the GDT descriptor:
 	 */
 	if (cpu)
- 		memcpy(cpu_gdt(cpu), cpu_gdt_table, GDT_SIZE);
+		memcpy(get_cpu_gdt_table(cpu), cpu_gdt_table, GDT_SIZE);
 
 	cpu_gdt_descr[cpu].size = GDT_SIZE;
 	load_gdt((const struct desc_ptr *)&cpu_gdt_descr[cpu]);
diff --git a/arch/x86/kernel/suspend_64.c b/arch/x86/kernel/suspend_64.c
index 569f1b540e36..279c25775d19 100644
--- a/arch/x86/kernel/suspend_64.c
+++ b/arch/x86/kernel/suspend_64.c
@@ -140,7 +140,7 @@ void fix_processor_context(void)
 
 	set_tss_desc(cpu,t);	/* This just modifies memory; should not be necessary. But... This is necessary, because 386 hardware has concept of busy TSS or some similar stupidity. */
 
-	cpu_gdt(cpu)[GDT_ENTRY_TSS].type = 9;
+	get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9;
 
 	syscall_init();                         /* This sets MSR_*STAR and related */
 	load_TR_desc();				/* This does ltr */
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index c4c5e765cd2c..e5c1118a8098 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -297,7 +297,7 @@ static void __cpuinit vsyscall_set_cpu(int cpu)
 	/* Store cpu number in limit so that it can be loaded quickly
 	   in user space in vgetcpu.
 	   12 bits for the CPU and 8 bits for the node. */
-	d = (unsigned long *)(cpu_gdt(cpu) + GDT_ENTRY_PER_CPU);
+	d = (unsigned long *)(get_cpu_gdt_table(cpu) + GDT_ENTRY_PER_CPU);
 	*d = 0x0f40000000000ULL;
 	*d |= cpu;
 	*d |= (node & 0xf) << 12;
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index 230ac6e50a0f..4d67f61b4c23 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -48,7 +48,7 @@ static inline void write_ldt_entry(struct desc_struct *ldt,
 }
 
 /* the cpu gdt accessor */
-#define cpu_gdt(_cpu) ((struct desc_struct *)cpu_gdt_descr[_cpu].address)
+#define get_cpu_gdt_table(x) ((struct desc_struct *)cpu_gdt_descr[x].address)
 
 static inline void load_gdt(const struct desc_ptr *ptr)
 {
@@ -141,15 +141,15 @@ static inline void set_tss_desc(unsigned cpu, void *addr)
 	 * -1? seg base+limit should be pointing to the address of the
 	 * last valid byte
 	 */
-	set_tssldt_descriptor(&cpu_gdt(cpu)[GDT_ENTRY_TSS],
+	set_tssldt_descriptor(&get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS],
 		(unsigned long)addr, DESC_TSS,
 		IO_BITMAP_OFFSET + IO_BITMAP_BYTES + sizeof(unsigned long) - 1);
 }
 
 static inline void set_ldt_desc(unsigned cpu, void *addr, int size)
 {
-	set_tssldt_descriptor(&cpu_gdt(cpu)[GDT_ENTRY_LDT], (unsigned long)addr,
-			      DESC_LDT, size * 8 - 1);
+	set_tssldt_descriptor(&get_cpu_gdt_table(cpu)[GDT_ENTRY_LDT],
+			     (unsigned long)addr, DESC_LDT, size * 8 - 1);
 }
 
 #define LDT_entry_a(info) \
@@ -183,7 +183,7 @@ static inline void set_ldt_desc(unsigned cpu, void *addr, int size)
 static inline void load_TLS(struct thread_struct *t, unsigned int cpu)
 {
 	unsigned int i;
-	u64 *gdt = (u64 *)(cpu_gdt(cpu) + GDT_ENTRY_TLS_MIN);
+	u64 *gdt = (u64 *)(get_cpu_gdt_table(cpu) + GDT_ENTRY_TLS_MIN);
 
 	for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
 		gdt[i] = t->tls_array[i];
-- 
cgit v1.2.3-59-g8ed1b


From 010d4f8221cf51a2ab8b037d0149506b397d073f Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:12 +0100
Subject: x86: introduce gate_desc type.

To account for the differences in gate descriptor in i386 and x86_64
a gate_desc type is introduced.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/traps_32.c  |  2 +-
 include/asm-x86/desc_32.h   | 15 ++++++++-------
 include/asm-x86/desc_64.h   |  4 ++--
 include/asm-x86/desc_defs.h |  8 +++++++-
 4 files changed, 18 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 0d45017ed824..c70c41fd710b 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -76,7 +76,7 @@ char ignore_fpu_irq = 0;
  * F0 0F bug workaround.. We have a special link segment
  * for this.
  */
-struct desc_struct idt_table[256]
+gate_desc idt_table[256]
 	__attribute__((__section__(".data.idt"))) = { { { { 0, 0 } } }, };
 
 asmlinkage void divide_error(void);
diff --git a/include/asm-x86/desc_32.h b/include/asm-x86/desc_32.h
index bc5ca3453466..77f1e5a4ad7c 100644
--- a/include/asm-x86/desc_32.h
+++ b/include/asm-x86/desc_32.h
@@ -3,6 +3,7 @@
 
 #include <asm/ldt.h>
 #include <asm/segment.h>
+#include <asm/desc_defs.h>
 
 #ifndef __ASSEMBLY__
 
@@ -24,7 +25,7 @@ static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
 }
 
 extern struct desc_ptr idt_descr;
-extern struct desc_struct idt_table[];
+extern gate_desc idt_table[];
 extern void set_intr_gate(unsigned int irq, void * addr);
 
 static inline void pack_descriptor(__u32 *a, __u32 *b,
@@ -35,11 +36,11 @@ static inline void pack_descriptor(__u32 *a, __u32 *b,
 		(limit & 0x000f0000) | ((type & 0xff) << 8) | ((flags & 0xf) << 20);
 }
 
-static inline void pack_gate(__u32 *a, __u32 *b,
+static inline void pack_gate(gate_desc *gate,
 	unsigned long base, unsigned short seg, unsigned char type, unsigned char flags)
 {
-	*a = (seg << 16) | (base & 0xffff);
-	*b = (base & 0xffff0000) | ((type & 0xff) << 8) | (flags & 0xff);
+	gate->a = (seg << 16) | (base & 0xffff);
+	gate->b = (base & 0xffff0000) | ((type & 0xff) << 8) | (flags & 0xff);
 }
 
 #define DESCTYPE_LDT 	0x82	/* present, system, DPL-0, LDT */
@@ -139,9 +140,9 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
 
 static inline void _set_gate(int gate, unsigned int type, void *addr, unsigned short seg)
 {
-	__u32 a, b;
-	pack_gate(&a, &b, (unsigned long)addr, seg, type, 0);
-	write_idt_entry(idt_table, gate, a, b);
+	gate_desc g;
+	pack_gate(&g, (unsigned long)addr, seg, type, 0);
+	write_idt_entry(idt_table, gate, g.a, g.b);
 }
 
 static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, const void *addr)
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index 8bd84a4ef2d5..887393f044b1 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -30,7 +30,7 @@ static inline unsigned long __store_tr(void)
 
 #define store_tr(tr) (tr) = __store_tr()
 
-extern struct gate_struct idt_table[];
+extern gate_desc idt_table[];
 extern struct desc_ptr cpu_gdt_descr[];
 
 static inline void write_ldt_entry(struct desc_struct *ldt,
@@ -58,7 +58,7 @@ static inline void store_gdt(struct desc_ptr *ptr)
 static inline void _set_gate(void *adr, unsigned type, unsigned long func,
 			     unsigned dpl, unsigned ist)
 {
-	struct gate_struct s;
+	gate_desc s;
 
 	s.offset_low = PTR_LOW(func);
 	s.segment = __KERNEL_CS;
diff --git a/include/asm-x86/desc_defs.h b/include/asm-x86/desc_defs.h
index de47eb0a23aa..9732285116af 100644
--- a/include/asm-x86/desc_defs.h
+++ b/include/asm-x86/desc_defs.h
@@ -39,7 +39,7 @@ enum {
 };
 
 // 16byte gate
-struct gate_struct {
+struct gate_struct64 {
 	u16 offset_low;
 	u16 segment;
 	unsigned ist : 3, zero0 : 5, type : 5, dpl : 2, p : 1;
@@ -67,6 +67,12 @@ struct ldttss_desc {
 	u32 zero1;
 } __attribute__((packed));
 
+#ifdef CONFIG_X86_64
+typedef struct gate_struct64 gate_desc;
+#else
+typedef struct desc_struct gate_desc;
+#endif
+
 struct desc_ptr {
 	unsigned short size;
 	unsigned long address;
-- 
cgit v1.2.3-59-g8ed1b


From 8d947344c47a40626730bb80d136d8daac9f2060 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:12 +0100
Subject: x86: change write_idt_entry signature

this patch changes write_idt_entry signature. It now takes a gate_desc
instead of the a and b parameters. It will allow it to be later unified
between i386 and x86_64.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
CC: Zachary Amsden <zach@vmware.com>
CC: Jeremy Fitzhardinge <Jeremy.Fitzhardinge.citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/paravirt_32.c |  2 +-
 arch/x86/kernel/vmi_32.c      | 10 +++++++++-
 arch/x86/lguest/boot.c        |  9 +++++----
 arch/x86/xen/enlighten.c      |  8 ++++----
 include/asm-x86/desc_32.h     | 10 ++++++++--
 include/asm-x86/paravirt.h    |  9 +++++----
 6 files changed, 32 insertions(+), 16 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/paravirt_32.c b/arch/x86/kernel/paravirt_32.c
index f4e3a8e01cf2..13bbc99b639b 100644
--- a/arch/x86/kernel/paravirt_32.c
+++ b/arch/x86/kernel/paravirt_32.c
@@ -381,7 +381,7 @@ struct pv_cpu_ops pv_cpu_ops = {
 	.load_tls = native_load_tls,
 	.write_ldt_entry = write_dt_entry,
 	.write_gdt_entry = write_dt_entry,
-	.write_idt_entry = write_dt_entry,
+	.write_idt_entry = native_write_idt_entry,
 	.load_sp0 = native_load_sp0,
 
 	.irq_enable_syscall_ret = native_irq_enable_syscall_ret,
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 4cfda7dbe90f..a635b22de25f 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -62,6 +62,7 @@ static struct {
 	void (*cpuid)(void /* non-c */);
 	void (*_set_ldt)(u32 selector);
 	void (*set_tr)(u32 selector);
+	void (*write_idt_entry)(struct desc_struct *, int, u32, u32);
 	void (*set_kernel_stack)(u32 selector, u32 sp0);
 	void (*allocate_page)(u32, u32, u32, u32, u32);
 	void (*release_page)(u32, u32);
@@ -214,6 +215,12 @@ static void vmi_set_tr(void)
 	vmi_ops.set_tr(GDT_ENTRY_TSS*sizeof(struct desc_struct));
 }
 
+static void vmi_write_idt_entry(gate_desc *dt, int entry, const gate_desc *g)
+{
+	u32 *idt_entry = (u32 *)g;
+	vmi_ops.write_idt_entry(dt, entry, idt_entry[0], idt_entry[2]);
+}
+
 static void vmi_load_sp0(struct tss_struct *tss,
 				   struct thread_struct *thread)
 {
@@ -792,7 +799,8 @@ static inline int __init activate_vmi(void)
 	pv_cpu_ops.load_tls = vmi_load_tls;
 	para_fill(pv_cpu_ops.write_ldt_entry, WriteLDTEntry);
 	para_fill(pv_cpu_ops.write_gdt_entry, WriteGDTEntry);
-	para_fill(pv_cpu_ops.write_idt_entry, WriteIDTEntry);
+	para_wrap(pv_cpu_ops.write_idt_entry, vmi_write_idt_entry,
+		  write_idt_entry, WriteIDTEntry);
 	para_wrap(pv_cpu_ops.load_sp0, vmi_load_sp0, set_kernel_stack, UpdateKernelStack);
 	para_fill(pv_cpu_ops.set_iopl_mask, SetIOPLMask);
 	para_fill(pv_cpu_ops.io_delay, IODelay);
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index aa0bdd5fc4bb..b50c8ad25ab4 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -217,13 +217,14 @@ static void irq_enable(void)
  * address of the handler, and... well, who cares?  The Guest just asks the
  * Host to make the change anyway, because the Host controls the real IDT.
  */
-static void lguest_write_idt_entry(struct desc_struct *dt,
-				   int entrynum, u32 low, u32 high)
+static void lguest_write_idt_entry(gate_desc *dt,
+				   int entrynum, const gate_desc *g)
 {
+	u32 *desc = (u32 *)g;
 	/* Keep the local copy up to date. */
-	write_dt_entry(dt, entrynum, low, high);
+	native_write_idt_entry(dt, entrynum, g);
 	/* Tell Host about this new entry. */
-	hcall(LHCALL_LOAD_IDT_ENTRY, entrynum, low, high);
+	hcall(LHCALL_LOAD_IDT_ENTRY, entrynum, desc[0], desc[1]);
 }
 
 /* Changing to a different IDT is very rare: we keep the IDT up-to-date every
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index c32e0fd0f838..b7b7346d8cdc 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -399,8 +399,7 @@ static DEFINE_PER_CPU(struct desc_ptr, idt_desc);
 
 /* Set an IDT entry.  If the entry is part of the current IDT, then
    also update Xen. */
-static void xen_write_idt_entry(struct desc_struct *dt, int entrynum,
-				u32 low, u32 high)
+static void xen_write_idt_entry(gate_desc *dt, int entrynum, const gate_desc *g)
 {
 	unsigned long p = (unsigned long)&dt[entrynum];
 	unsigned long start, end;
@@ -412,14 +411,15 @@ static void xen_write_idt_entry(struct desc_struct *dt, int entrynum,
 
 	xen_mc_flush();
 
-	write_dt_entry(dt, entrynum, low, high);
+	native_write_idt_entry(dt, entrynum, g);
 
 	if (p >= start && (p + 8) <= end) {
 		struct trap_info info[2];
+		u32 *desc = (u32 *)g;
 
 		info[1].address = 0;
 
-		if (cvt_gate_to_trap(entrynum, low, high, &info[0]))
+		if (cvt_gate_to_trap(entrynum, desc[0], desc[1], &info[0]))
 			if (HYPERVISOR_set_trap_table(info))
 				BUG();
 	}
diff --git a/include/asm-x86/desc_32.h b/include/asm-x86/desc_32.h
index 77f1e5a4ad7c..54b2314f2ddf 100644
--- a/include/asm-x86/desc_32.h
+++ b/include/asm-x86/desc_32.h
@@ -70,9 +70,15 @@ static inline void pack_gate(gate_desc *gate,
 
 #define write_ldt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
 #define write_gdt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
-#define write_idt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
+#define write_idt_entry(dt, entry, g) native_write_idt_entry(dt, entry, g)
 #endif
 
+static inline void native_write_idt_entry(gate_desc *idt, int entry,
+					  const gate_desc *gate)
+{
+	memcpy(&idt[entry], gate, sizeof(*gate));
+}
+
 static inline void write_dt_entry(struct desc_struct *dt,
 				  int entry, u32 entry_low, u32 entry_high)
 {
@@ -142,7 +148,7 @@ static inline void _set_gate(int gate, unsigned int type, void *addr, unsigned s
 {
 	gate_desc g;
 	pack_gate(&g, (unsigned long)addr, seg, type, 0);
-	write_idt_entry(idt_table, gate, g.a, g.b);
+	write_idt_entry(idt_table, gate, &g);
 }
 
 static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, const void *addr)
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 0333fb6988b5..86a9d7b0920f 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -17,6 +17,7 @@
 #include <linux/types.h>
 #include <linux/cpumask.h>
 #include <asm/kmap_types.h>
+#include <asm/desc_defs.h>
 
 struct page;
 struct thread_struct;
@@ -99,8 +100,8 @@ struct pv_cpu_ops {
 				int entrynum, u32 low, u32 high);
 	void (*write_gdt_entry)(struct desc_struct *,
 				int entrynum, u32 low, u32 high);
-	void (*write_idt_entry)(struct desc_struct *,
-				int entrynum, u32 low, u32 high);
+	void (*write_idt_entry)(gate_desc *,
+				int entrynum, const gate_desc *gate);
 	void (*load_sp0)(struct tss_struct *tss, struct thread_struct *t);
 
 	void (*set_iopl_mask)(unsigned mask);
@@ -667,9 +668,9 @@ static inline void write_gdt_entry(void *dt, int entry, u32 low, u32 high)
 {
 	PVOP_VCALL4(pv_cpu_ops.write_gdt_entry, dt, entry, low, high);
 }
-static inline void write_idt_entry(void *dt, int entry, u32 low, u32 high)
+static inline void write_idt_entry(gate_desc *dt, int entry, const gate_desc *g)
 {
-	PVOP_VCALL4(pv_cpu_ops.write_idt_entry, dt, entry, low, high);
+	PVOP_VCALL3(pv_cpu_ops.write_idt_entry, dt, entry, g);
 }
 static inline void set_iopl_mask(unsigned mask)
 {
-- 
cgit v1.2.3-59-g8ed1b


From 5af725026fe902bf81f1b90b1b9d9ee4b9e1eb6a Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:13 +0100
Subject: x86: modify write_ldt function

This patch modifies the write_ldt() function to make use
of the new struct desc_struct instead of entry_1 and entry_2
entries

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ldt.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index a8cdca3615bf..7eb0c8a45734 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -186,7 +186,7 @@ static int read_default_ldt(void __user *ptr, unsigned long bytecount)
 static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 {
 	struct mm_struct *mm = current->mm;
-	__u32 entry_1, entry_2;
+	struct desc_struct ldt;
 	int error;
 	struct user_desc ldt_info;
 
@@ -218,21 +218,20 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 	/* Allow LDTs to be cleared by the user. */
 	if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
 		if (oldmode || LDT_empty(&ldt_info)) {
-			entry_1 = 0;
-			entry_2 = 0;
+			memset(&ldt, 0, sizeof(ldt));
 			goto install;
 		}
 	}
 
-	entry_1 = LDT_entry_a(&ldt_info);
-	entry_2 = LDT_entry_b(&ldt_info);
+	ldt.a = LDT_entry_a(&ldt_info);
+	ldt.b = LDT_entry_b(&ldt_info);
 	if (oldmode)
-		entry_2 &= ~(1 << 20);
+		ldt.avl = 0;
 
 	/* Install the new entry ...  */
 install:
-	write_ldt_entry(mm->context.ldt, ldt_info.entry_number, entry_1,
-			entry_2);
+	write_ldt_entry(mm->context.ldt, ldt_info.entry_number,
+			ldt.a, ldt.b);
 	error = 0;
 
 out_unlock:
-- 
cgit v1.2.3-59-g8ed1b


From 80fbb69a8d1268ef48dfe21da80e68cb01922f31 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:13 +0100
Subject: x86: introduce fill_ldt

This patch introduces fill_ldt(), which populates a ldt descriptor
from a user_desc in once, instead of relying in the LDT_entry_a and
LDT_entry_b macros

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ldt.c        |  3 +--
 arch/x86/kernel/process_64.c |  3 +--
 arch/x86/kernel/tls.c        |  7 +++----
 include/asm-x86/desc.h       | 29 +++++++++++++++++++++++++++++
 include/asm-x86/desc_32.h    | 15 ---------------
 include/asm-x86/desc_64.h    | 17 -----------------
 6 files changed, 34 insertions(+), 40 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 7eb0c8a45734..3e872b468533 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -223,8 +223,7 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 		}
 	}
 
-	ldt.a = LDT_entry_a(&ldt_info);
-	ldt.b = LDT_entry_b(&ldt_info);
+	fill_ldt(&ldt, &ldt_info);
 	if (oldmode)
 		ldt.avl = 0;
 
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 86c310acc989..f91521e26335 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -457,8 +457,7 @@ static inline void set_32bit_tls(struct task_struct *t, int tls, u32 addr)
 	};
 	struct desc_struct *desc = (void *)t->thread.tls_array;
 	desc += tls;
-	desc->a = LDT_entry_a(&ud);
-	desc->b = LDT_entry_b(&ud);
+	fill_ldt(desc, &ud);
 }
 
 static inline u32 read_32bit_tls(struct task_struct *t, int tls)
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index 67a377621b12..74d2b65a82eb 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -67,10 +67,9 @@ int do_set_thread_area(struct task_struct *p, int idx,
 	if (LDT_empty(&info)) {
 		desc[0] = 0;
 		desc[1] = 0;
-	} else {
-		desc[0] = LDT_entry_a(&info);
-		desc[1] = LDT_entry_b(&info);
-	}
+	} else
+		fill_ldt((struct desc_struct *)desc, &info);
+
 	if (t == &current->thread)
 		load_TLS(t, cpu);
 
diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h
index 6065c5092265..47086d2d9298 100644
--- a/include/asm-x86/desc.h
+++ b/include/asm-x86/desc.h
@@ -1,5 +1,34 @@
+#ifndef _ASM_DESC_H_
+#define _ASM_DESC_H_
+
+#ifndef __ASSEMBLY__
+#include <asm/desc_defs.h>
+#include <asm/ldt.h>
+
+static inline void fill_ldt(struct desc_struct *desc, struct user_desc *info)
+{
+	desc->limit0 = info->limit & 0x0ffff;
+	desc->base0 = info->base_addr & 0x0000ffff;
+
+	desc->base1 = (info->base_addr & 0x00ff0000) >> 16;
+	desc->type = (info->read_exec_only ^ 1) << 1;
+	desc->type |= info->contents << 2;
+	desc->s = 1;
+	desc->dpl = 0x3;
+	desc->p = info->seg_not_present ^ 1;
+	desc->limit = (info->limit & 0xf0000) >> 16;
+	desc->avl = info->useable;
+	desc->d = info->seg_32bit;
+	desc->g = info->limit_in_pages;
+	desc->base2 = (info->base_addr & 0xff000000) >> 24;
+}
+
+#endif
+
 #ifdef CONFIG_X86_32
 # include "desc_32.h"
 #else
 # include "desc_64.h"
 #endif
+
+#endif
diff --git a/include/asm-x86/desc_32.h b/include/asm-x86/desc_32.h
index 54b2314f2ddf..03700991c5db 100644
--- a/include/asm-x86/desc_32.h
+++ b/include/asm-x86/desc_32.h
@@ -163,21 +163,6 @@ static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, const vo
 
 #define set_tss_desc(cpu,addr) __set_tss_desc(cpu, GDT_ENTRY_TSS, addr)
 
-#define LDT_entry_a(info) \
-	((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff))
-
-#define LDT_entry_b(info) \
-	(((info)->base_addr & 0xff000000) | \
-	(((info)->base_addr & 0x00ff0000) >> 16) | \
-	((info)->limit & 0xf0000) | \
-	(((info)->read_exec_only ^ 1) << 9) | \
-	((info)->contents << 10) | \
-	(((info)->seg_not_present ^ 1) << 15) | \
-	((info)->seg_32bit << 22) | \
-	((info)->limit_in_pages << 23) | \
-	((info)->useable << 20) | \
-	0x7000)
-
 #define LDT_empty(info) (\
 	(info)->base_addr	== 0	&& \
 	(info)->limit		== 0	&& \
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index c49f928ed8b6..ba7fb87d10f3 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -147,23 +147,6 @@ static inline void set_ldt_desc(unsigned cpu, void *addr, int size)
 			     (unsigned long)addr, DESC_LDT, size * 8 - 1);
 }
 
-#define LDT_entry_a(info) \
-	((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff))
-/* Don't allow setting of the lm bit. It is useless anyways because
-   64bit system calls require __USER_CS. */
-#define LDT_entry_b(info) \
-	(((info)->base_addr & 0xff000000) | \
-	(((info)->base_addr & 0x00ff0000) >> 16) | \
-	((info)->limit & 0xf0000) | \
-	(((info)->read_exec_only ^ 1) << 9) | \
-	((info)->contents << 10) | \
-	(((info)->seg_not_present ^ 1) << 15) | \
-	((info)->seg_32bit << 22) | \
-	((info)->limit_in_pages << 23) | \
-	((info)->useable << 20) | \
-	/* ((info)->lm << 21) | */ \
-	0x7000)
-
 #define LDT_empty(info) (\
 	(info)->base_addr	== 0	&& \
 	(info)->limit		== 0	&& \
-- 
cgit v1.2.3-59-g8ed1b


From 014b15be30c04622d130946ab7c0a9101b523a8a Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:13 +0100
Subject: x86: change write_gdt_entry signature.

This patch changes the write_gdt_entry function signature.
Instead of the old "a" and "b" parameters, it now receives
a pointer to a desc_struct, and the size of the entry being
handled. This is because x86_64 can have some 16-byte entries
as well as 8-byte ones.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
CC: Zachary Amsden <zach@vmware.com>
CC: Jeremy Fitzhardinge <Jeremy.Fitzhardinge.citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/paravirt_32.c  |  2 +-
 arch/x86/kernel/smpcommon_32.c |  7 ++++---
 arch/x86/kernel/vmi_32.c       | 21 +++++++++++++++------
 arch/x86/lguest/boot.c         |  6 +++---
 arch/x86/xen/enlighten.c       | 11 +++++------
 include/asm-x86/desc_32.h      | 34 ++++++++++++++++++++++------------
 include/asm-x86/paravirt.h     |  9 ++++++---
 7 files changed, 56 insertions(+), 34 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/paravirt_32.c b/arch/x86/kernel/paravirt_32.c
index 13bbc99b639b..77602c1252d7 100644
--- a/arch/x86/kernel/paravirt_32.c
+++ b/arch/x86/kernel/paravirt_32.c
@@ -380,7 +380,7 @@ struct pv_cpu_ops pv_cpu_ops = {
 	.store_tr = native_store_tr,
 	.load_tls = native_load_tls,
 	.write_ldt_entry = write_dt_entry,
-	.write_gdt_entry = write_dt_entry,
+	.write_gdt_entry = native_write_gdt_entry,
 	.write_idt_entry = native_write_idt_entry,
 	.load_sp0 = native_load_sp0,
 
diff --git a/arch/x86/kernel/smpcommon_32.c b/arch/x86/kernel/smpcommon_32.c
index bbfe85a0f699..8bc38af29aef 100644
--- a/arch/x86/kernel/smpcommon_32.c
+++ b/arch/x86/kernel/smpcommon_32.c
@@ -14,10 +14,11 @@ __cpuinit void init_gdt(int cpu)
 {
 	struct desc_struct *gdt = get_cpu_gdt_table(cpu);
 
-	pack_descriptor((u32 *)&gdt[GDT_ENTRY_PERCPU].a,
-			(u32 *)&gdt[GDT_ENTRY_PERCPU].b,
+	pack_descriptor(&gdt[GDT_ENTRY_PERCPU],
 			__per_cpu_offset[cpu], 0xFFFFF,
-			0x80 | DESCTYPE_S | 0x2, 0x8);
+			0x2 | DESCTYPE_S, 0x8);
+
+	gdt[GDT_ENTRY_PERCPU].s = 1;
 
 	per_cpu(this_cpu_off, cpu) = __per_cpu_offset[cpu];
 	per_cpu(cpu_number, cpu) = cpu;
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index a635b22de25f..21edd0d6eae5 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -63,6 +63,7 @@ static struct {
 	void (*_set_ldt)(u32 selector);
 	void (*set_tr)(u32 selector);
 	void (*write_idt_entry)(struct desc_struct *, int, u32, u32);
+	void (*write_gdt_entry)(struct desc_struct *, int, u32, u32);
 	void (*set_kernel_stack)(u32 selector, u32 sp0);
 	void (*allocate_page)(u32, u32, u32, u32, u32);
 	void (*release_page)(u32, u32);
@@ -187,7 +188,7 @@ static void vmi_cpuid(unsigned int *ax, unsigned int *bx,
 static inline void vmi_maybe_load_tls(struct desc_struct *gdt, int nr, struct desc_struct *new)
 {
 	if (gdt[nr].a != new->a || gdt[nr].b != new->b)
-		write_gdt_entry(gdt, nr, new->a, new->b);
+		write_gdt_entry(gdt, nr, new, 0);
 }
 
 static void vmi_load_tls(struct thread_struct *t, unsigned int cpu)
@@ -201,12 +202,12 @@ static void vmi_load_tls(struct thread_struct *t, unsigned int cpu)
 static void vmi_set_ldt(const void *addr, unsigned entries)
 {
 	unsigned cpu = smp_processor_id();
-	u32 low, high;
+	struct desc_struct desc;
 
-	pack_descriptor(&low, &high, (unsigned long)addr,
+	pack_descriptor(&desc, (unsigned long)addr,
 			entries * sizeof(struct desc_struct) - 1,
-			DESCTYPE_LDT, 0);
-	write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT, low, high);
+			DESC_LDT, 0);
+	write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT, &desc, DESC_LDT);
 	vmi_ops._set_ldt(entries ? GDT_ENTRY_LDT*sizeof(struct desc_struct) : 0);
 }
 
@@ -221,6 +222,13 @@ static void vmi_write_idt_entry(gate_desc *dt, int entry, const gate_desc *g)
 	vmi_ops.write_idt_entry(dt, entry, idt_entry[0], idt_entry[2]);
 }
 
+static void vmi_write_gdt_entry(struct desc_struct *dt, int entry,
+				const void *desc, int type)
+{
+	u32 *gdt_entry = (u32 *)desc;
+	vmi_ops.write_gdt_entry(dt, entry, gdt_entry[0], gdt_entry[2]);
+}
+
 static void vmi_load_sp0(struct tss_struct *tss,
 				   struct thread_struct *thread)
 {
@@ -798,7 +806,8 @@ static inline int __init activate_vmi(void)
 	para_fill(pv_cpu_ops.store_tr, GetTR);
 	pv_cpu_ops.load_tls = vmi_load_tls;
 	para_fill(pv_cpu_ops.write_ldt_entry, WriteLDTEntry);
-	para_fill(pv_cpu_ops.write_gdt_entry, WriteGDTEntry);
+	para_wrap(pv_cpu_ops.write_gdt_entry, vmi_write_gdt_entry,
+		  write_gdt_entry, WriteGDTEntry);
 	para_wrap(pv_cpu_ops.write_idt_entry, vmi_write_idt_entry,
 		  write_idt_entry, WriteIDTEntry);
 	para_wrap(pv_cpu_ops.load_sp0, vmi_load_sp0, set_kernel_stack, UpdateKernelStack);
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index b50c8ad25ab4..a63373759f08 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -262,10 +262,10 @@ static void lguest_load_gdt(const struct desc_ptr *desc)
 /* For a single GDT entry which changes, we do the lazy thing: alter our GDT,
  * then tell the Host to reload the entire thing.  This operation is so rare
  * that this naive implementation is reasonable. */
-static void lguest_write_gdt_entry(struct desc_struct *dt,
-				   int entrynum, u32 low, u32 high)
+static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
+				   const void *desc, int type)
 {
-	write_dt_entry(dt, entrynum, low, high);
+	native_write_gdt_entry(dt, entrynum, desc, type);
 	hcall(LHCALL_LOAD_GDT, __pa(dt), GDT_ENTRIES, 0);
 }
 
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index b7b7346d8cdc..7f98c63f6381 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -475,22 +475,21 @@ static void xen_load_idt(const struct desc_ptr *desc)
 /* Write a GDT descriptor entry.  Ignore LDT descriptors, since
    they're handled differently. */
 static void xen_write_gdt_entry(struct desc_struct *dt, int entry,
-				u32 low, u32 high)
+				const void *desc, int type)
 {
 	preempt_disable();
 
-	switch ((high >> 8) & 0xff) {
-	case DESCTYPE_LDT:
-	case DESCTYPE_TSS:
+	switch (type) {
+	case DESC_LDT:
+	case DESC_TSS:
 		/* ignore */
 		break;
 
 	default: {
 		xmaddr_t maddr = virt_to_machine(&dt[entry]);
-		u64 desc = (u64)high << 32 | low;
 
 		xen_mc_flush();
-		if (HYPERVISOR_update_descriptor(maddr.maddr, desc))
+		if (HYPERVISOR_update_descriptor(maddr.maddr, *(u64 *)desc))
 			BUG();
 	}
 
diff --git a/include/asm-x86/desc_32.h b/include/asm-x86/desc_32.h
index 03700991c5db..41d8214c6173 100644
--- a/include/asm-x86/desc_32.h
+++ b/include/asm-x86/desc_32.h
@@ -28,12 +28,13 @@ extern struct desc_ptr idt_descr;
 extern gate_desc idt_table[];
 extern void set_intr_gate(unsigned int irq, void * addr);
 
-static inline void pack_descriptor(__u32 *a, __u32 *b,
+static inline void pack_descriptor(struct desc_struct *desc,
 	unsigned long base, unsigned long limit, unsigned char type, unsigned char flags)
 {
-	*a = ((base & 0xffff) << 16) | (limit & 0xffff);
-	*b = (base & 0xff000000) | ((base & 0xff0000) >> 16) |
+	desc->a = ((base & 0xffff) << 16) | (limit & 0xffff);
+	desc->b = (base & 0xff000000) | ((base & 0xff0000) >> 16) |
 		(limit & 0x000f0000) | ((type & 0xff) << 8) | ((flags & 0xf) << 20);
+	desc->p = 1;
 }
 
 static inline void pack_gate(gate_desc *gate,
@@ -69,7 +70,8 @@ static inline void pack_gate(gate_desc *gate,
 #define set_ldt native_set_ldt
 
 #define write_ldt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
-#define write_gdt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
+#define write_gdt_entry(dt, entry, desc, type) \
+				native_write_gdt_entry(dt, entry, desc, type)
 #define write_idt_entry(dt, entry, g) native_write_idt_entry(dt, entry, g)
 #endif
 
@@ -79,6 +81,12 @@ static inline void native_write_idt_entry(gate_desc *idt, int entry,
 	memcpy(&idt[entry], gate, sizeof(*gate));
 }
 
+static inline void native_write_gdt_entry(struct desc_struct *gdt, int entry,
+					  const void *desc, int type)
+{
+	memcpy(&gdt[entry], desc, sizeof(struct desc_struct));
+}
+
 static inline void write_dt_entry(struct desc_struct *dt,
 				  int entry, u32 entry_low, u32 entry_high)
 {
@@ -86,18 +94,20 @@ static inline void write_dt_entry(struct desc_struct *dt,
 	dt[entry].b = entry_high;
 }
 
+
 static inline void native_set_ldt(const void *addr, unsigned int entries)
 {
 	if (likely(entries == 0))
 		__asm__ __volatile__("lldt %w0"::"q" (0));
 	else {
 		unsigned cpu = smp_processor_id();
-		__u32 a, b;
+		ldt_desc ldt;
 
-		pack_descriptor(&a, &b, (unsigned long)addr,
+		pack_descriptor(&ldt, (unsigned long)addr,
 				entries * sizeof(struct desc_struct) - 1,
-				DESCTYPE_LDT, 0);
-		write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT, a, b);
+				DESC_LDT, 0);
+		write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT,
+				&ldt, DESC_LDT);
 		__asm__ __volatile__("lldt %w0"::"q" (GDT_ENTRY_LDT*8));
 	}
 }
@@ -153,11 +163,11 @@ static inline void _set_gate(int gate, unsigned int type, void *addr, unsigned s
 
 static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, const void *addr)
 {
-	__u32 a, b;
-	pack_descriptor(&a, &b, (unsigned long)addr,
+	tss_desc tss;
+	pack_descriptor(&tss, (unsigned long)addr,
 			offsetof(struct tss_struct, __cacheline_filler) - 1,
-			DESCTYPE_TSS, 0);
-	write_gdt_entry(get_cpu_gdt_table(cpu), entry, a, b);
+			DESC_TSS, 0);
+	write_gdt_entry(get_cpu_gdt_table(cpu), entry, &tss, DESC_TSS);
 }
 
 
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 86a9d7b0920f..3f2abf295e2a 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -99,7 +99,7 @@ struct pv_cpu_ops {
 	void (*write_ldt_entry)(struct desc_struct *,
 				int entrynum, u32 low, u32 high);
 	void (*write_gdt_entry)(struct desc_struct *,
-				int entrynum, u32 low, u32 high);
+				int entrynum, const void *desc, int size);
 	void (*write_idt_entry)(gate_desc *,
 				int entrynum, const gate_desc *gate);
 	void (*load_sp0)(struct tss_struct *tss, struct thread_struct *t);
@@ -664,10 +664,13 @@ static inline void write_ldt_entry(void *dt, int entry, u32 low, u32 high)
 {
 	PVOP_VCALL4(pv_cpu_ops.write_ldt_entry, dt, entry, low, high);
 }
-static inline void write_gdt_entry(void *dt, int entry, u32 low, u32 high)
+
+static inline void write_gdt_entry(struct desc_struct *dt, int entry,
+				   void *desc, int type)
 {
-	PVOP_VCALL4(pv_cpu_ops.write_gdt_entry, dt, entry, low, high);
+	PVOP_VCALL4(pv_cpu_ops.write_gdt_entry, dt, entry, desc, type);
 }
+
 static inline void write_idt_entry(gate_desc *dt, int entry, const gate_desc *g)
 {
 	PVOP_VCALL3(pv_cpu_ops.write_idt_entry, dt, entry, g);
-- 
cgit v1.2.3-59-g8ed1b


From 75b8bb3e56ca09a467fbbe5229bc68627f7445be Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:13 +0100
Subject: x86: change write_ldt_entry signature

this patch changes the signature of write_ldt_entry.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
CC: Zachary Amsden <zach@vmware.com>
CC: Jeremy Fitzhardinge <Jeremy.Fitzhardinge.citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ldt.c         |  3 +--
 arch/x86/kernel/paravirt_32.c |  2 +-
 arch/x86/kernel/vmi_32.c      | 11 ++++++++++-
 arch/x86/xen/enlighten.c      |  4 ++--
 include/asm-x86/desc_32.h     |  9 ++++++++-
 include/asm-x86/desc_64.h     |  7 ++-----
 include/asm-x86/paravirt.h    | 10 ++++++----
 7 files changed, 30 insertions(+), 16 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 3e872b468533..b8ef46270e24 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -229,8 +229,7 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 
 	/* Install the new entry ...  */
 install:
-	write_ldt_entry(mm->context.ldt, ldt_info.entry_number,
-			ldt.a, ldt.b);
+	write_ldt_entry(mm->context.ldt, ldt_info.entry_number, &ldt);
 	error = 0;
 
 out_unlock:
diff --git a/arch/x86/kernel/paravirt_32.c b/arch/x86/kernel/paravirt_32.c
index 77602c1252d7..dd063fba2b21 100644
--- a/arch/x86/kernel/paravirt_32.c
+++ b/arch/x86/kernel/paravirt_32.c
@@ -379,7 +379,7 @@ struct pv_cpu_ops pv_cpu_ops = {
 	.store_idt = native_store_idt,
 	.store_tr = native_store_tr,
 	.load_tls = native_load_tls,
-	.write_ldt_entry = write_dt_entry,
+	.write_ldt_entry = native_write_ldt_entry,
 	.write_gdt_entry = native_write_gdt_entry,
 	.write_idt_entry = native_write_idt_entry,
 	.load_sp0 = native_load_sp0,
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 21edd0d6eae5..10c46419d35d 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -64,6 +64,7 @@ static struct {
 	void (*set_tr)(u32 selector);
 	void (*write_idt_entry)(struct desc_struct *, int, u32, u32);
 	void (*write_gdt_entry)(struct desc_struct *, int, u32, u32);
+	void (*write_ldt_entry)(struct desc_struct *, int, u32, u32);
 	void (*set_kernel_stack)(u32 selector, u32 sp0);
 	void (*allocate_page)(u32, u32, u32, u32, u32);
 	void (*release_page)(u32, u32);
@@ -229,6 +230,13 @@ static void vmi_write_gdt_entry(struct desc_struct *dt, int entry,
 	vmi_ops.write_gdt_entry(dt, entry, gdt_entry[0], gdt_entry[2]);
 }
 
+static void vmi_write_ldt_entry(struct desc_struct *dt, int entry,
+				const void *desc)
+{
+	u32 *ldt_entry = (u32 *)desc;
+	vmi_ops.write_idt_entry(dt, entry, ldt_entry[0], ldt_entry[2]);
+}
+
 static void vmi_load_sp0(struct tss_struct *tss,
 				   struct thread_struct *thread)
 {
@@ -805,7 +813,8 @@ static inline int __init activate_vmi(void)
 	para_fill(pv_cpu_ops.store_idt, GetIDT);
 	para_fill(pv_cpu_ops.store_tr, GetTR);
 	pv_cpu_ops.load_tls = vmi_load_tls;
-	para_fill(pv_cpu_ops.write_ldt_entry, WriteLDTEntry);
+	para_wrap(pv_cpu_ops.write_ldt_entry, vmi_write_ldt_entry,
+		  write_ldt_entry, WriteLDTEntry);
 	para_wrap(pv_cpu_ops.write_gdt_entry, vmi_write_gdt_entry,
 		  write_gdt_entry, WriteGDTEntry);
 	para_wrap(pv_cpu_ops.write_idt_entry, vmi_write_idt_entry,
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 7f98c63f6381..72dd14d0685c 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -357,11 +357,11 @@ static void xen_load_tls(struct thread_struct *t, unsigned int cpu)
 }
 
 static void xen_write_ldt_entry(struct desc_struct *dt, int entrynum,
-				u32 low, u32 high)
+				const void *ptr)
 {
 	unsigned long lp = (unsigned long)&dt[entrynum];
 	xmaddr_t mach_lp = virt_to_machine(lp);
-	u64 entry = (u64)high << 32 | low;
+	u64 entry = *(u64 *)ptr;
 
 	preempt_disable();
 
diff --git a/include/asm-x86/desc_32.h b/include/asm-x86/desc_32.h
index 41d8214c6173..92a72b0381e2 100644
--- a/include/asm-x86/desc_32.h
+++ b/include/asm-x86/desc_32.h
@@ -69,12 +69,19 @@ static inline void pack_gate(gate_desc *gate,
 #define load_TLS(t, cpu) native_load_tls(t, cpu)
 #define set_ldt native_set_ldt
 
-#define write_ldt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
+#define write_ldt_entry(dt, entry, desc) \
+				native_write_ldt_entry(dt, entry, desc)
 #define write_gdt_entry(dt, entry, desc, type) \
 				native_write_gdt_entry(dt, entry, desc, type)
 #define write_idt_entry(dt, entry, g) native_write_idt_entry(dt, entry, g)
 #endif
 
+static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry,
+					  const void *desc)
+{
+	memcpy(&ldt[entry], desc, sizeof(struct desc_struct));
+}
+
 static inline void native_write_idt_entry(gate_desc *idt, int entry,
 					  const gate_desc *gate)
 {
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index ba7fb87d10f3..7cdd3f0420fd 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -34,12 +34,9 @@ extern gate_desc idt_table[];
 extern struct desc_ptr cpu_gdt_descr[];
 
 static inline void write_ldt_entry(struct desc_struct *ldt,
-				   int entry, u32 entry_low, u32 entry_high)
+				   int entry, void *ptr)
 {
-	__u32 *lp = (__u32 *)((entry << 3) + (char *)ldt);
-
-	lp[0] = entry_low;
-	lp[1] = entry_high;
+	memcpy(&ldt[entry], ptr, 8);
 }
 
 /* the cpu gdt accessor */
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 3f2abf295e2a..4f23f434a1f3 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -96,8 +96,8 @@ struct pv_cpu_ops {
 	void (*set_ldt)(const void *desc, unsigned entries);
 	unsigned long (*store_tr)(void);
 	void (*load_tls)(struct thread_struct *t, unsigned int cpu);
-	void (*write_ldt_entry)(struct desc_struct *,
-				int entrynum, u32 low, u32 high);
+	void (*write_ldt_entry)(struct desc_struct *ldt, int entrynum,
+				const void *desc);
 	void (*write_gdt_entry)(struct desc_struct *,
 				int entrynum, const void *desc, int size);
 	void (*write_idt_entry)(gate_desc *,
@@ -660,9 +660,11 @@ static inline void load_TLS(struct thread_struct *t, unsigned cpu)
 {
 	PVOP_VCALL2(pv_cpu_ops.load_tls, t, cpu);
 }
-static inline void write_ldt_entry(void *dt, int entry, u32 low, u32 high)
+
+static inline void write_ldt_entry(struct desc_struct *dt, int entry,
+				   const void *desc)
 {
-	PVOP_VCALL4(pv_cpu_ops.write_ldt_entry, dt, entry, low, high);
+	PVOP_VCALL3(pv_cpu_ops.write_ldt_entry, dt, entry, desc);
 }
 
 static inline void write_gdt_entry(struct desc_struct *dt, int entry,
-- 
cgit v1.2.3-59-g8ed1b


From cc6978528cbd475d952e0eb5073375839dfb600e Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:14 +0100
Subject: x86: modify get_desc_base

This patch makes get_desc_base() receive a struct desc_struct,
and then uses its internal fields to compute the base address.
This is done at both i386 and x86_64, and then it is moved
to common header

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/tls.c     | 2 +-
 arch/x86/mm/fault_32.c    | 2 +-
 include/asm-x86/desc.h    | 5 +++++
 include/asm-x86/desc_32.h | 8 --------
 include/asm-x86/desc_64.h | 9 ---------
 5 files changed, 7 insertions(+), 19 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index 74d2b65a82eb..98f428be8e8c 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -112,7 +112,7 @@ int do_get_thread_area(struct task_struct *p, int idx,
 
 	memset(&info, 0, sizeof(struct user_desc));
 	info.entry_number = idx;
-	info.base_addr = get_desc_base((void *)desc);
+	info.base_addr = get_desc_base((struct desc_struct *)desc);
 	info.limit = GET_LIMIT(desc);
 	info.seg_32bit = GET_32BIT(desc);
 	info.contents = GET_CONTENTS(desc);
diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 6056c6d71835..ef5ab2b925c4 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -115,7 +115,7 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
 	}
 
 	/* Decode the code segment base from the descriptor */
-	base = get_desc_base((unsigned long *)desc);
+	base = get_desc_base((struct desc_struct *)desc);
 
 	if (seg & (1<<2)) { 
 		mutex_unlock(&current->mm->context.lock);
diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h
index 99c4adc851e2..a6fdd7c7b6b2 100644
--- a/include/asm-x86/desc.h
+++ b/include/asm-x86/desc.h
@@ -69,6 +69,11 @@ static inline void load_LDT(mm_context_t *pc)
 	preempt_enable();
 }
 
+static inline unsigned long get_desc_base(struct desc_struct *desc)
+{
+	return desc->base0 | ((desc->base1) << 16) | ((desc->base2) << 24);
+}
+
 #else
 /*
  * GET_DESC_BASE reads the descriptor base of the specified segment.
diff --git a/include/asm-x86/desc_32.h b/include/asm-x86/desc_32.h
index 01415ad35fdf..8450c2a99c3a 100644
--- a/include/asm-x86/desc_32.h
+++ b/include/asm-x86/desc_32.h
@@ -168,14 +168,6 @@ static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, const vo
 
 #define set_tss_desc(cpu,addr) __set_tss_desc(cpu, GDT_ENTRY_TSS, addr)
 
-static inline unsigned long get_desc_base(unsigned long *desc)
-{
-	unsigned long base;
-	base = ((desc[0] >> 16)  & 0x0000ffff) |
-		((desc[1] << 16) & 0x00ff0000) |
-		(desc[1] & 0xff000000);
-	return base;
-}
 #endif /* !__ASSEMBLY__ */
 
 #endif
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index 448f96ed973f..a7a6c301c6bc 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -156,15 +156,6 @@ static inline void load_TLS(struct thread_struct *t, unsigned int cpu)
 		gdt[i] = t->tls_array[i];
 }
 
-static inline unsigned long get_desc_base(const void *ptr)
-{
-	const u32 *desc = ptr;
-	unsigned long base;
-	base = ((desc[0] >> 16)  & 0x0000ffff) |
-		((desc[1] << 16) & 0x00ff0000) |
-		(desc[1] & 0xff000000);
-	return base;
-}
 #endif /* !__ASSEMBLY__ */
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 507f90c9f92592e7630b1c1e87bf92d2c9858cc6 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:14 +0100
Subject: x86: move _set_gate and its users to a common location

This patch moves _set_gate and its users to desc.h. We can now
use common code for x86_64 and i386.

[ mingo@elte.hu: set_system_gate() fixes for nasty crashes. ]

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/traps_32.c  | 34 -----------------
 include/asm-x86/desc.h      | 92 +++++++++++++++++++++++++++++++++++++++++++++
 include/asm-x86/desc_32.h   | 16 --------
 include/asm-x86/desc_64.h   | 45 ----------------------
 include/asm-x86/desc_defs.h |  5 +--
 5 files changed, 93 insertions(+), 99 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index c70c41fd710b..3065b3f41928 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -1102,40 +1102,6 @@ asmlinkage void math_emulate(long arg)
 
 #endif /* CONFIG_MATH_EMULATION */
 
-/*
- * This needs to use 'idt_table' rather than 'idt', and
- * thus use the _nonmapped_ version of the IDT, as the
- * Pentium F0 0F bugfix can have resulted in the mapped
- * IDT being write-protected.
- */
-void set_intr_gate(unsigned int n, void *addr)
-{
-	_set_gate(n, DESCTYPE_INT, addr, __KERNEL_CS);
-}
-
-/*
- * This routine sets up an interrupt gate at directory privilege level 3.
- */
-static inline void set_system_intr_gate(unsigned int n, void *addr)
-{
-	_set_gate(n, DESCTYPE_INT | DESCTYPE_DPL3, addr, __KERNEL_CS);
-}
-
-static void __init set_trap_gate(unsigned int n, void *addr)
-{
-	_set_gate(n, DESCTYPE_TRAP, addr, __KERNEL_CS);
-}
-
-static void __init set_system_gate(unsigned int n, void *addr)
-{
-	_set_gate(n, DESCTYPE_TRAP | DESCTYPE_DPL3, addr, __KERNEL_CS);
-}
-
-static void __init set_task_gate(unsigned int n, unsigned int gdt_entry)
-{
-	_set_gate(n, DESCTYPE_TASK, (void *)0, (gdt_entry<<3));
-}
-
 
 void __init trap_init(void)
 {
diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h
index e61a5a38caba..d75bc0634313 100644
--- a/include/asm-x86/desc.h
+++ b/include/asm-x86/desc.h
@@ -33,6 +33,22 @@ extern struct desc_struct cpu_gdt_table[GDT_ENTRIES];
 extern struct desc_ptr cpu_gdt_descr[];
 /* the cpu gdt accessor */
 #define get_cpu_gdt_table(x) ((struct desc_struct *)cpu_gdt_descr[x].address)
+
+static inline void pack_gate(gate_desc *gate, unsigned type, unsigned long func,
+			     unsigned dpl, unsigned ist, unsigned seg)
+{
+	gate->offset_low = PTR_LOW(func);
+	gate->segment = __KERNEL_CS;
+	gate->ist = ist;
+	gate->p = 1;
+	gate->dpl = dpl;
+	gate->zero0 = 0;
+	gate->zero1 = 0;
+	gate->type = type;
+	gate->offset_middle = PTR_MIDDLE(func);
+	gate->offset_high = PTR_HIGH(func);
+}
+
 #else
 struct gdt_page {
 	struct desc_struct gdt[GDT_ENTRIES];
@@ -43,6 +59,16 @@ static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
 {
 	return per_cpu(gdt_page, cpu).gdt;
 }
+
+static inline void pack_gate(gate_desc *gate, unsigned char type,
+       unsigned long base, unsigned dpl, unsigned flags, unsigned short seg)
+
+{
+	gate->a = (seg << 16) | (base & 0xffff);
+	gate->b = (base & 0xffff0000) |
+		  (((0x80 | type | (dpl << 5)) & 0xff) << 8);
+}
+
 #endif
 
 #ifdef CONFIG_PARAVIRT
@@ -242,6 +268,72 @@ static inline unsigned long get_desc_base(struct desc_struct *desc)
 {
 	return desc->base0 | ((desc->base1) << 16) | ((desc->base2) << 24);
 }
+static inline void _set_gate(int gate, unsigned type, void *addr,
+			      unsigned dpl, unsigned ist, unsigned seg)
+{
+	gate_desc s;
+	pack_gate(&s, type, (unsigned long)addr, dpl, ist, seg);
+	/*
+	 * does not need to be atomic because it is only done once at
+	 * setup time
+	 */
+	write_idt_entry(idt_table, gate, &s);
+}
+
+/*
+ * This needs to use 'idt_table' rather than 'idt', and
+ * thus use the _nonmapped_ version of the IDT, as the
+ * Pentium F0 0F bugfix can have resulted in the mapped
+ * IDT being write-protected.
+ */
+static inline void set_intr_gate(unsigned int n, void *addr)
+{
+	BUG_ON((unsigned)n > 0xFF);
+	_set_gate(n, GATE_INTERRUPT, addr, 0, 0, __KERNEL_CS);
+}
+
+/*
+ * This routine sets up an interrupt gate at directory privilege level 3.
+ */
+static inline void set_system_intr_gate(unsigned int n, void *addr)
+{
+	BUG_ON((unsigned)n > 0xFF);
+	_set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS);
+}
+
+static inline void set_trap_gate(unsigned int n, void *addr)
+{
+	BUG_ON((unsigned)n > 0xFF);
+	_set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS);
+}
+
+static inline void set_system_gate(unsigned int n, void *addr)
+{
+	BUG_ON((unsigned)n > 0xFF);
+#ifdef CONFIG_X86_32
+	_set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS);
+#else
+	_set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS);
+#endif
+}
+
+static inline void set_task_gate(unsigned int n, unsigned int gdt_entry)
+{
+	BUG_ON((unsigned)n > 0xFF);
+	_set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3));
+}
+
+static inline void set_intr_gate_ist(int n, void *addr, unsigned ist)
+{
+	BUG_ON((unsigned)n > 0xFF);
+	_set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS);
+}
+
+static inline void set_system_gate_ist(int n, void *addr, unsigned ist)
+{
+	BUG_ON((unsigned)n > 0xFF);
+	_set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS);
+}
 
 #else
 /*
diff --git a/include/asm-x86/desc_32.h b/include/asm-x86/desc_32.h
index 4bf20b7dd741..3b112ec186a0 100644
--- a/include/asm-x86/desc_32.h
+++ b/include/asm-x86/desc_32.h
@@ -10,22 +10,6 @@
 #include <linux/preempt.h>
 #include <linux/percpu.h>
 
-extern void set_intr_gate(unsigned int irq, void * addr);
-
-static inline void pack_gate(gate_desc *gate,
-	unsigned long base, unsigned short seg, unsigned char type, unsigned char flags)
-{
-	gate->a = (seg << 16) | (base & 0xffff);
-	gate->b = (base & 0xffff0000) | ((type & 0xff) << 8) | (flags & 0xff);
-}
-
-static inline void _set_gate(int gate, unsigned int type, void *addr, unsigned short seg)
-{
-	gate_desc g;
-	pack_gate(&g, (unsigned long)addr, seg, type, 0);
-	write_idt_entry(idt_table, gate, &g);
-}
-
 static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, const void *addr)
 {
 	tss_desc tss;
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index b0290c45319c..6bc92e6e5cc3 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -11,51 +11,6 @@
 
 #include <asm/segment.h>
 
-static inline void _set_gate(int gate, unsigned type, unsigned long func,
-			     unsigned dpl, unsigned ist)
-{
-	gate_desc s;
-
-	s.offset_low = PTR_LOW(func);
-	s.segment = __KERNEL_CS;
-	s.ist = ist;
-	s.p = 1;
-	s.dpl = dpl;
-	s.zero0 = 0;
-	s.zero1 = 0;
-	s.type = type;
-	s.offset_middle = PTR_MIDDLE(func);
-	s.offset_high = PTR_HIGH(func);
-	/*
-	 * does not need to be atomic because it is only done once at
-	 * setup time
-	 */
-	write_idt_entry(idt_table, gate, &s);
-}
-
-static inline void set_intr_gate(int nr, void *func)
-{
-	BUG_ON((unsigned)nr > 0xFF);
-	_set_gate(nr, GATE_INTERRUPT, (unsigned long) func, 0, 0);
-}
-
-static inline void set_intr_gate_ist(int nr, void *func, unsigned ist)
-{
-	BUG_ON((unsigned)nr > 0xFF);
-	_set_gate(nr, GATE_INTERRUPT, (unsigned long) func, 0, ist);
-}
-
-static inline void set_system_gate(int nr, void *func)
-{
-	BUG_ON((unsigned)nr > 0xFF);
-	_set_gate(nr, GATE_INTERRUPT, (unsigned long) func, 3, 0);
-}
-
-static inline void set_system_gate_ist(int nr, void *func, unsigned ist)
-{
-	_set_gate(nr, GATE_INTERRUPT, (unsigned long) func, 3, ist);
-}
-
 static inline void set_tss_desc(unsigned cpu, void *addr)
 {
 	struct desc_struct *d = get_cpu_gdt_table(cpu);
diff --git a/include/asm-x86/desc_defs.h b/include/asm-x86/desc_defs.h
index ebb64fe3a450..e33f078b3e54 100644
--- a/include/asm-x86/desc_defs.h
+++ b/include/asm-x86/desc_defs.h
@@ -36,6 +36,7 @@ enum {
 	GATE_INTERRUPT = 0xE,
 	GATE_TRAP = 0xF,
 	GATE_CALL = 0xC,
+	GATE_TASK = 0x5,
 };
 
 // 16byte gate
@@ -55,10 +56,6 @@ struct gate_struct64 {
 enum {
 	DESC_TSS = 0x9,
 	DESC_LDT = 0x2,
-	DESCTYPE_TASK = 0x85,   /* present, system, DPL-0, task gate */
-	DESCTYPE_INT =  0x8e,   /* present, system, DPL-0, interrupt gate */
-	DESCTYPE_TRAP = 0x8f,   /* present, system, DPL-0, trap gate */
-	DESCTYPE_DPL3 = 0x60,   /* DPL-3 */
 	DESCTYPE_S =	0x10,	/* !system */
 };
 
-- 
cgit v1.2.3-59-g8ed1b


From 332540d5fe7f3370bb860090e4b906340a2e2afb Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:31:14 +0100
Subject: UML: remove remaining FASTCALL uses

With the x86 removal, FASTCALL is always empty now.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/um/kernel/ksyms.c   | 4 ++--
 include/asm-um/linkage.h | 1 -
 2 files changed, 2 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c
index 1b388b41d95d..7c7142ba3bd7 100644
--- a/arch/um/kernel/ksyms.c
+++ b/arch/um/kernel/ksyms.c
@@ -71,10 +71,10 @@ EXPORT_SYMBOL(dump_thread);
 
 /* required for SMP */
 
-extern void FASTCALL( __write_lock_failed(rwlock_t *rw));
+extern void __write_lock_failed(rwlock_t *rw);
 EXPORT_SYMBOL(__write_lock_failed);
 
-extern void FASTCALL( __read_lock_failed(rwlock_t *rw));
+extern void __read_lock_failed(rwlock_t *rw);
 EXPORT_SYMBOL(__read_lock_failed);
 
 #endif
diff --git a/include/asm-um/linkage.h b/include/asm-um/linkage.h
index 78b862472b36..cdb3024a699a 100644
--- a/include/asm-um/linkage.h
+++ b/include/asm-um/linkage.h
@@ -6,7 +6,6 @@
 
 /* <linux/linkage.h> will pick sane defaults */
 #ifdef CONFIG_GPROF
-#undef FASTCALL
 #undef fastcall
 #endif
 
-- 
cgit v1.2.3-59-g8ed1b


From 6b7d190b14d478c759be22dcb7ee4695a711b562 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:31:16 +0100
Subject: x86: remove last users of FASTCALL

FASTCALL() is always empty.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/acpi/sleep_32.c | 2 +-
 arch/x86/kernel/vm86_32.c       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/acpi/sleep_32.c b/arch/x86/kernel/acpi/sleep_32.c
index 10699489cfe7..09f820d920b1 100644
--- a/arch/x86/kernel/acpi/sleep_32.c
+++ b/arch/x86/kernel/acpi/sleep_32.c
@@ -17,7 +17,7 @@ unsigned long acpi_wakeup_address = 0;
 unsigned long acpi_realmode_flags;
 extern char wakeup_start, wakeup_end;
 
-extern unsigned long FASTCALL(acpi_copy_wakeup_routine(unsigned long));
+extern unsigned long acpi_copy_wakeup_routine(unsigned long);
 
 /**
  * acpi_save_state_mem - save kernel state
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index e85bb44265cb..5aa5e2f9f0ad 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -120,7 +120,7 @@ static int copy_vm86_regs_from_user(struct kernel_vm86_regs *regs,
 	return ret;
 }
 
-struct pt_regs * FASTCALL(save_v86_state(struct kernel_vm86_regs * regs));
+struct pt_regs * save_v86_state(struct kernel_vm86_regs * regs);
 struct pt_regs * fastcall save_v86_state(struct kernel_vm86_regs * regs)
 {
 	struct tss_struct *tss;
-- 
cgit v1.2.3-59-g8ed1b


From 75604d7f7f1ee93e4d19d9e19f4497b7ed842f2a Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:31:17 +0100
Subject: x86: remove all definitions with fastcall

fastcall is always defined to be empty, remove it from arch/x86

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic_32.c            |  2 +-
 arch/x86/kernel/cpu/mcheck/k7.c      |  2 +-
 arch/x86/kernel/cpu/mcheck/mce.h     |  2 +-
 arch/x86/kernel/cpu/mcheck/mce_32.c  |  4 ++--
 arch/x86/kernel/cpu/mcheck/p4.c      |  4 ++--
 arch/x86/kernel/cpu/mcheck/p5.c      |  2 +-
 arch/x86/kernel/cpu/mcheck/p6.c      |  2 +-
 arch/x86/kernel/cpu/mcheck/winchip.c |  2 +-
 arch/x86/kernel/io_apic_32.c         |  2 +-
 arch/x86/kernel/irq_32.c             |  2 +-
 arch/x86/kernel/kprobes_32.c         |  2 +-
 arch/x86/kernel/process_32.c         |  2 +-
 arch/x86/kernel/signal_32.c          |  2 +-
 arch/x86/kernel/smp_32.c             |  8 ++++----
 arch/x86/kernel/traps_32.c           | 24 ++++++++++++------------
 arch/x86/kernel/vm86_32.c            |  3 +--
 arch/x86/mach-voyager/voyager_smp.c  | 20 ++++++++++----------
 arch/x86/mm/fault_32.c               |  5 ++---
 arch/x86/xen/events.c                |  2 +-
 19 files changed, 45 insertions(+), 47 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 1ee443a8e61b..69a13d127da3 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -578,7 +578,7 @@ static void local_apic_timer_interrupt(void)
  *   interrupt as well. Thus we cannot inline the local irq ... ]
  */
 
-void fastcall smp_apic_timer_interrupt(struct pt_regs *regs)
+void smp_apic_timer_interrupt(struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
 
diff --git a/arch/x86/kernel/cpu/mcheck/k7.c b/arch/x86/kernel/cpu/mcheck/k7.c
index eef63e3630c2..39fa76fd3851 100644
--- a/arch/x86/kernel/cpu/mcheck/k7.c
+++ b/arch/x86/kernel/cpu/mcheck/k7.c
@@ -16,7 +16,7 @@
 #include "mce.h"
 
 /* Machine Check Handler For AMD Athlon/Duron */
-static fastcall void k7_machine_check(struct pt_regs * regs, long error_code)
+static void k7_machine_check(struct pt_regs * regs, long error_code)
 {
 	int recover=1;
 	u32 alow, ahigh, high, low;
diff --git a/arch/x86/kernel/cpu/mcheck/mce.h b/arch/x86/kernel/cpu/mcheck/mce.h
index 81fb6e2d35f3..ae9f628838f1 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.h
+++ b/arch/x86/kernel/cpu/mcheck/mce.h
@@ -8,7 +8,7 @@ void intel_p6_mcheck_init(struct cpuinfo_x86 *c);
 void winchip_mcheck_init(struct cpuinfo_x86 *c);
 
 /* Call the installed machine check handler for this CPU setup. */
-extern fastcall void (*machine_check_vector)(struct pt_regs *, long error_code);
+extern void (*machine_check_vector)(struct pt_regs *, long error_code);
 
 extern int nr_mce_banks;
 
diff --git a/arch/x86/kernel/cpu/mcheck/mce_32.c b/arch/x86/kernel/cpu/mcheck/mce_32.c
index 34c781eddee4..a5182dcd94ae 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_32.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_32.c
@@ -22,13 +22,13 @@ int nr_mce_banks;
 EXPORT_SYMBOL_GPL(nr_mce_banks);	/* non-fatal.o */
 
 /* Handle unconfigured int18 (should never happen) */
-static fastcall void unexpected_machine_check(struct pt_regs * regs, long error_code)
+static void unexpected_machine_check(struct pt_regs * regs, long error_code)
 {	
 	printk(KERN_ERR "CPU#%d: Unexpected int18 (Machine Check).\n", smp_processor_id());
 }
 
 /* Call the installed machine check handler for this CPU setup. */
-void fastcall (*machine_check_vector)(struct pt_regs *, long error_code) = unexpected_machine_check;
+void (*machine_check_vector)(struct pt_regs *, long error_code) = unexpected_machine_check;
 
 /* This has to be run for each processor */
 void mcheck_init(struct cpuinfo_x86 *c)
diff --git a/arch/x86/kernel/cpu/mcheck/p4.c b/arch/x86/kernel/cpu/mcheck/p4.c
index be4dabfee1f5..16a6238dbc2a 100644
--- a/arch/x86/kernel/cpu/mcheck/p4.c
+++ b/arch/x86/kernel/cpu/mcheck/p4.c
@@ -57,7 +57,7 @@ static void intel_thermal_interrupt(struct pt_regs *regs)
 /* Thermal interrupt handler for this CPU setup */
 static void (*vendor_thermal_interrupt)(struct pt_regs *regs) = unexpected_thermal_interrupt;
 
-fastcall void smp_thermal_interrupt(struct pt_regs *regs)
+void smp_thermal_interrupt(struct pt_regs *regs)
 {
 	irq_enter();
 	vendor_thermal_interrupt(regs);
@@ -141,7 +141,7 @@ static inline void intel_get_extended_msrs(struct intel_mce_extended_msrs *r)
 	rdmsr (MSR_IA32_MCG_EIP, r->eip, h);
 }
 
-static fastcall void intel_machine_check(struct pt_regs * regs, long error_code)
+static void intel_machine_check(struct pt_regs * regs, long error_code)
 {
 	int recover=1;
 	u32 alow, ahigh, high, low;
diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c
index 94bc43d950cf..a18310aaae0c 100644
--- a/arch/x86/kernel/cpu/mcheck/p5.c
+++ b/arch/x86/kernel/cpu/mcheck/p5.c
@@ -16,7 +16,7 @@
 #include "mce.h"
 
 /* Machine check handler for Pentium class Intel */
-static fastcall void pentium_machine_check(struct pt_regs * regs, long error_code)
+static void pentium_machine_check(struct pt_regs * regs, long error_code)
 {
 	u32 loaddr, hi, lotype;
 	rdmsr(MSR_IA32_P5_MC_ADDR, loaddr, hi);
diff --git a/arch/x86/kernel/cpu/mcheck/p6.c b/arch/x86/kernel/cpu/mcheck/p6.c
index deeae42ce199..cb3829e07987 100644
--- a/arch/x86/kernel/cpu/mcheck/p6.c
+++ b/arch/x86/kernel/cpu/mcheck/p6.c
@@ -16,7 +16,7 @@
 #include "mce.h"
 
 /* Machine Check Handler For PII/PIII */
-static fastcall void intel_machine_check(struct pt_regs * regs, long error_code)
+static void intel_machine_check(struct pt_regs * regs, long error_code)
 {
 	int recover=1;
 	u32 alow, ahigh, high, low;
diff --git a/arch/x86/kernel/cpu/mcheck/winchip.c b/arch/x86/kernel/cpu/mcheck/winchip.c
index 9e424b6c293d..3d428d5afc52 100644
--- a/arch/x86/kernel/cpu/mcheck/winchip.c
+++ b/arch/x86/kernel/cpu/mcheck/winchip.c
@@ -15,7 +15,7 @@
 #include "mce.h"
 
 /* Machine check handler for WinChip C6 */
-static fastcall void winchip_machine_check(struct pt_regs * regs, long error_code)
+static void winchip_machine_check(struct pt_regs * regs, long error_code)
 {
 	printk(KERN_EMERG "CPU0: Machine Check Exception.\n");
 	add_taint(TAINT_MACHINE_CHECK);
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index 75bf8dc77650..76f11c3e3906 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -725,7 +725,7 @@ late_initcall(balanced_irq_init);
 #endif /* CONFIG_SMP */
 
 #ifndef CONFIG_SMP
-void fastcall send_IPI_self(int vector)
+void send_IPI_self(int vector)
 {
 	unsigned int cfg;
 
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index b49616bcc16b..cef054b09d27 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -66,7 +66,7 @@ static union irq_ctx *softirq_ctx[NR_CPUS] __read_mostly;
  * SMP cross-CPU interrupts have their own specific
  * handlers).
  */
-fastcall unsigned int do_IRQ(struct pt_regs *regs)
+unsigned int do_IRQ(struct pt_regs *regs)
 {	
 	struct pt_regs *old_regs;
 	/* high bit used in ret_from_ code */
diff --git a/arch/x86/kernel/kprobes_32.c b/arch/x86/kernel/kprobes_32.c
index d708cd4f956f..8eccd2d04709 100644
--- a/arch/x86/kernel/kprobes_32.c
+++ b/arch/x86/kernel/kprobes_32.c
@@ -403,7 +403,7 @@ no_kprobe:
 /*
  * Called from kretprobe_trampoline
  */
-fastcall void *__kprobes trampoline_handler(struct pt_regs *regs)
+void *__kprobes trampoline_handler(struct pt_regs *regs)
 {
 	struct kretprobe_instance *ri = NULL;
 	struct hlist_head *head, empty_rp;
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 2b9db9371060..48e92e3758c2 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -716,7 +716,7 @@ __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
  * the task-switch, and shows up in ret_from_fork in entry.S,
  * for example.
  */
-struct task_struct fastcall * __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
+struct task_struct * __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 {
 	struct thread_struct *prev = &prev_p->thread,
 				 *next = &next_p->thread;
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 2bf5c9aed106..74df55895c8c 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -575,7 +575,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
  * mistake.
  */
-static void fastcall do_signal(struct pt_regs *regs)
+static void do_signal(struct pt_regs *regs)
 {
 	siginfo_t info;
 	int signr;
diff --git a/arch/x86/kernel/smp_32.c b/arch/x86/kernel/smp_32.c
index d4c01a4aca60..070816ac79e1 100644
--- a/arch/x86/kernel/smp_32.c
+++ b/arch/x86/kernel/smp_32.c
@@ -159,7 +159,7 @@ void __send_IPI_shortcut(unsigned int shortcut, int vector)
 	apic_write_around(APIC_ICR, cfg);
 }
 
-void fastcall send_IPI_self(int vector)
+void send_IPI_self(int vector)
 {
 	__send_IPI_shortcut(APIC_DEST_SELF, vector);
 }
@@ -310,7 +310,7 @@ void leave_mm(unsigned long cpu)
  * 2) Leave the mm if we are in the lazy tlb mode.
  */
 
-fastcall void smp_invalidate_interrupt(struct pt_regs *regs)
+void smp_invalidate_interrupt(struct pt_regs *regs)
 {
 	unsigned long cpu;
 
@@ -638,13 +638,13 @@ static void native_smp_send_stop(void)
  * all the work is done automatically when
  * we return from the interrupt.
  */
-fastcall void smp_reschedule_interrupt(struct pt_regs *regs)
+void smp_reschedule_interrupt(struct pt_regs *regs)
 {
 	ack_APIC_irq();
 	__get_cpu_var(irq_stat).irq_resched_count++;
 }
 
-fastcall void smp_call_function_interrupt(struct pt_regs *regs)
+void smp_call_function_interrupt(struct pt_regs *regs)
 {
 	void (*func) (void *info) = call_data->func;
 	void *info = call_data->info;
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 3065b3f41928..2eb6ca0ef672 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -501,7 +501,7 @@ static void __kprobes do_trap(int trapnr, int signr, char *str, int vm86,
 }
 
 #define DO_ERROR(trapnr, signr, str, name) \
-fastcall void do_##name(struct pt_regs * regs, long error_code) \
+void do_##name(struct pt_regs * regs, long error_code) \
 { \
 	if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
 						== NOTIFY_STOP) \
@@ -510,7 +510,7 @@ fastcall void do_##name(struct pt_regs * regs, long error_code) \
 }
 
 #define DO_ERROR_INFO(trapnr, signr, str, name, sicode, siaddr, irq) \
-fastcall void do_##name(struct pt_regs * regs, long error_code) \
+void do_##name(struct pt_regs * regs, long error_code) \
 { \
 	siginfo_t info; \
 	if (irq) \
@@ -526,7 +526,7 @@ fastcall void do_##name(struct pt_regs * regs, long error_code) \
 }
 
 #define DO_VM86_ERROR(trapnr, signr, str, name) \
-fastcall void do_##name(struct pt_regs * regs, long error_code) \
+void do_##name(struct pt_regs * regs, long error_code) \
 { \
 	if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
 						== NOTIFY_STOP) \
@@ -535,7 +535,7 @@ fastcall void do_##name(struct pt_regs * regs, long error_code) \
 }
 
 #define DO_VM86_ERROR_INFO(trapnr, signr, str, name, sicode, siaddr) \
-fastcall void do_##name(struct pt_regs * regs, long error_code) \
+void do_##name(struct pt_regs * regs, long error_code) \
 { \
 	siginfo_t info; \
 	info.si_signo = signr; \
@@ -563,7 +563,7 @@ DO_ERROR(12, SIGBUS,  "stack segment", stack_segment)
 DO_ERROR_INFO(17, SIGBUS, "alignment check", alignment_check, BUS_ADRALN, 0, 0)
 DO_ERROR_INFO(32, SIGSEGV, "iret exception", iret_error, ILL_BADSTK, 0, 1)
 
-fastcall void __kprobes do_general_protection(struct pt_regs * regs,
+void __kprobes do_general_protection(struct pt_regs * regs,
 					      long error_code)
 {
 	int cpu = get_cpu();
@@ -764,7 +764,7 @@ static __kprobes void default_do_nmi(struct pt_regs * regs)
 
 static int ignore_nmis;
 
-fastcall __kprobes void do_nmi(struct pt_regs * regs, long error_code)
+__kprobes void do_nmi(struct pt_regs * regs, long error_code)
 {
 	int cpu;
 
@@ -793,7 +793,7 @@ void restart_nmi(void)
 }
 
 #ifdef CONFIG_KPROBES
-fastcall void __kprobes do_int3(struct pt_regs *regs, long error_code)
+void __kprobes do_int3(struct pt_regs *regs, long error_code)
 {
 	trace_hardirqs_fixup();
 
@@ -829,7 +829,7 @@ fastcall void __kprobes do_int3(struct pt_regs *regs, long error_code)
  * find every occurrence of the TF bit that could be saved away even
  * by user code)
  */
-fastcall void __kprobes do_debug(struct pt_regs * regs, long error_code)
+void __kprobes do_debug(struct pt_regs * regs, long error_code)
 {
 	unsigned int condition;
 	struct task_struct *tsk = current;
@@ -961,7 +961,7 @@ void math_error(void __user *ip)
 	force_sig_info(SIGFPE, &info, task);
 }
 
-fastcall void do_coprocessor_error(struct pt_regs * regs, long error_code)
+void do_coprocessor_error(struct pt_regs * regs, long error_code)
 {
 	ignore_fpu_irq = 1;
 	math_error((void __user *)regs->ip);
@@ -1015,7 +1015,7 @@ static void simd_math_error(void __user *ip)
 	force_sig_info(SIGFPE, &info, task);
 }
 
-fastcall void do_simd_coprocessor_error(struct pt_regs * regs,
+void do_simd_coprocessor_error(struct pt_regs * regs,
 					  long error_code)
 {
 	if (cpu_has_xmm) {
@@ -1039,7 +1039,7 @@ fastcall void do_simd_coprocessor_error(struct pt_regs * regs,
 	}
 }
 
-fastcall void do_spurious_interrupt_bug(struct pt_regs * regs,
+void do_spurious_interrupt_bug(struct pt_regs * regs,
 					  long error_code)
 {
 #if 0
@@ -1048,7 +1048,7 @@ fastcall void do_spurious_interrupt_bug(struct pt_regs * regs,
 #endif
 }
 
-fastcall unsigned long patch_espfix_desc(unsigned long uesp,
+unsigned long patch_espfix_desc(unsigned long uesp,
 					  unsigned long kesp)
 {
 	struct desc_struct *gdt = __get_cpu_var(gdt_page).gdt;
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 5aa5e2f9f0ad..c9f67effbc42 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -120,8 +120,7 @@ static int copy_vm86_regs_from_user(struct kernel_vm86_regs *regs,
 	return ret;
 }
 
-struct pt_regs * save_v86_state(struct kernel_vm86_regs * regs);
-struct pt_regs * fastcall save_v86_state(struct kernel_vm86_regs * regs)
+struct pt_regs * save_v86_state(struct kernel_vm86_regs * regs)
 {
 	struct tss_struct *tss;
 	struct pt_regs *ret;
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index f2c13482acc0..751777241881 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -755,7 +755,7 @@ void __init initialize_secondary(void)
  * System interrupts occur because some problem was detected on the
  * various busses.  To find out what you have to probe all the
  * hardware via the CAT bus.  FIXME: At the moment we do nothing. */
-fastcall void smp_vic_sys_interrupt(struct pt_regs *regs)
+void smp_vic_sys_interrupt(struct pt_regs *regs)
 {
 	ack_CPI(VIC_SYS_INT);
 	printk("Voyager SYSTEM INTERRUPT\n");
@@ -764,7 +764,7 @@ fastcall void smp_vic_sys_interrupt(struct pt_regs *regs)
 /* Handle a voyager CMN_INT; These interrupts occur either because of
  * a system status change or because a single bit memory error
  * occurred.  FIXME: At the moment, ignore all this. */
-fastcall void smp_vic_cmn_interrupt(struct pt_regs *regs)
+void smp_vic_cmn_interrupt(struct pt_regs *regs)
 {
 	static __u8 in_cmn_int = 0;
 	static DEFINE_SPINLOCK(cmn_int_lock);
@@ -1086,7 +1086,7 @@ voyager_smp_call_function_mask(cpumask_t cpumask,
  * no local APIC, so I can't do this
  *
  * This function is currently a placeholder and is unused in the code */
-fastcall void smp_apic_timer_interrupt(struct pt_regs *regs)
+void smp_apic_timer_interrupt(struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
 	wrapper_smp_local_timer_interrupt();
@@ -1094,7 +1094,7 @@ fastcall void smp_apic_timer_interrupt(struct pt_regs *regs)
 }
 
 /* All of the QUAD interrupt GATES */
-fastcall void smp_qic_timer_interrupt(struct pt_regs *regs)
+void smp_qic_timer_interrupt(struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
 	ack_QIC_CPI(QIC_TIMER_CPI);
@@ -1102,31 +1102,31 @@ fastcall void smp_qic_timer_interrupt(struct pt_regs *regs)
 	set_irq_regs(old_regs);
 }
 
-fastcall void smp_qic_invalidate_interrupt(struct pt_regs *regs)
+void smp_qic_invalidate_interrupt(struct pt_regs *regs)
 {
 	ack_QIC_CPI(QIC_INVALIDATE_CPI);
 	smp_invalidate_interrupt();
 }
 
-fastcall void smp_qic_reschedule_interrupt(struct pt_regs *regs)
+void smp_qic_reschedule_interrupt(struct pt_regs *regs)
 {
 	ack_QIC_CPI(QIC_RESCHEDULE_CPI);
 	smp_reschedule_interrupt();
 }
 
-fastcall void smp_qic_enable_irq_interrupt(struct pt_regs *regs)
+void smp_qic_enable_irq_interrupt(struct pt_regs *regs)
 {
 	ack_QIC_CPI(QIC_ENABLE_IRQ_CPI);
 	smp_enable_irq_interrupt();
 }
 
-fastcall void smp_qic_call_function_interrupt(struct pt_regs *regs)
+void smp_qic_call_function_interrupt(struct pt_regs *regs)
 {
 	ack_QIC_CPI(QIC_CALL_FUNCTION_CPI);
 	smp_call_function_interrupt();
 }
 
-fastcall void smp_vic_cpi_interrupt(struct pt_regs *regs)
+void smp_vic_cpi_interrupt(struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
 	__u8 cpu = smp_processor_id();
@@ -1333,7 +1333,7 @@ int setup_profiling_timer(unsigned int multiplier)
 /* This is a bit of a mess, but forced on us by the genirq changes
  * there's no genirq handler that really does what voyager wants
  * so hack it up with the simple IRQ handler */
-static void fastcall handle_vic_irq(unsigned int irq, struct irq_desc *desc)
+static void handle_vic_irq(unsigned int irq, struct irq_desc *desc)
 {
 	before_handle_vic_irq(irq);
 	handle_simple_irq(irq, desc);
diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index ef5ab2b925c4..8aed912b04ec 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -214,7 +214,7 @@ static noinline void force_sig_info_fault(int si_signo, int si_code,
 	force_sig_info(si_signo, &info, tsk);
 }
 
-fastcall void do_invalid_op(struct pt_regs *, unsigned long);
+void do_invalid_op(struct pt_regs *, unsigned long);
 
 static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 {
@@ -293,8 +293,7 @@ int show_unhandled_signals = 1;
  *	bit 3 == 1 means use of reserved bit detected
  *	bit 4 == 1 means fault was an instruction fetch
  */
-fastcall void __kprobes do_page_fault(struct pt_regs *regs,
-				      unsigned long error_code)
+void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 {
 	struct task_struct *tsk;
 	struct mm_struct *mm;
diff --git a/arch/x86/xen/events.c b/arch/x86/xen/events.c
index aebab9704dd7..dcf613e17581 100644
--- a/arch/x86/xen/events.c
+++ b/arch/x86/xen/events.c
@@ -465,7 +465,7 @@ void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector)
  * a bitset of words which contain pending event bits.  The second
  * level is a bitset of pending events themselves.
  */
-fastcall void xen_evtchn_do_upcall(struct pt_regs *regs)
+void xen_evtchn_do_upcall(struct pt_regs *regs)
 {
 	int cpu = get_cpu();
 	struct shared_info *s = HYPERVISOR_shared_info;
-- 
cgit v1.2.3-59-g8ed1b


From fa20efd2fcd9349770113c6f72fc76ce437b62f5 Mon Sep 17 00:00:00 2001
From: Aaron Durbin <adurbin@google.com>
Date: Wed, 30 Jan 2008 13:31:17 +0100
Subject: x86: add ACPI reboot option

Add the ability to reboot an x86_64 based machine using the RESET_REG in the
FADT ACPI table.

Signed-off-by: Aaron Durbin <adurbin@google.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/x86_64/boot-options.txt |  5 ++++-
 arch/x86/kernel/reboot_64.c           | 11 ++++++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/Documentation/x86_64/boot-options.txt b/Documentation/x86_64/boot-options.txt
index 945311840a10..d7a333258682 100644
--- a/Documentation/x86_64/boot-options.txt
+++ b/Documentation/x86_64/boot-options.txt
@@ -110,12 +110,15 @@ Idle loop
 
 Rebooting
 
-   reboot=b[ios] | t[riple] | k[bd] [, [w]arm | [c]old]
+   reboot=b[ios] | t[riple] | k[bd] | a[cpi] [, [w]arm | [c]old]
    bios	  Use the CPU reboot vector for warm reset
    warm   Don't set the cold reboot flag
    cold   Set the cold reboot flag
    triple Force a triple fault (init)
    kbd    Use the keyboard controller. cold reset (default)
+   acpi   Use the ACPI RESET_REG in the FADT. If ACPI is not configured or the
+          ACPI reset does not work, the reboot path attempts the reset using
+          the keyboard controller.
 
    Using warm reset will be much faster especially on big memory
    systems because the BIOS will not go through the memory check.
diff --git a/arch/x86/kernel/reboot_64.c b/arch/x86/kernel/reboot_64.c
index 53620a92a8fd..307f996a3933 100644
--- a/arch/x86/kernel/reboot_64.c
+++ b/arch/x86/kernel/reboot_64.c
@@ -9,6 +9,7 @@
 #include <linux/pm.h>
 #include <linux/kdebug.h>
 #include <linux/sched.h>
+#include <acpi/reboot.h>
 #include <asm/io.h>
 #include <asm/delay.h>
 #include <asm/desc.h>
@@ -29,7 +30,8 @@ EXPORT_SYMBOL(pm_power_off);
 static long no_idt[3];
 static enum { 
 	BOOT_TRIPLE = 't',
-	BOOT_KBD = 'k'
+	BOOT_KBD = 'k',
+	BOOT_ACPI = 'a'
 } reboot_type = BOOT_KBD;
 static int reboot_mode = 0;
 int reboot_force;
@@ -39,6 +41,7 @@ int reboot_force;
    cold   Set the cold reboot flag
    triple Force a triple fault (init)
    kbd    Use the keyboard controller. cold reset (default)
+   acpi   Use the RESET_REG in the FADT
    force  Avoid anything that could hang.
  */ 
 static int __init reboot_setup(char *str)
@@ -54,6 +57,7 @@ static int __init reboot_setup(char *str)
 			break;
 
 		case 't':
+		case 'a':
 		case 'b':
 		case 'k':
 			reboot_type = *str;
@@ -146,6 +150,11 @@ void machine_emergency_restart(void)
 
 			reboot_type = BOOT_KBD;
 			break;
+
+		case BOOT_ACPI:
+			acpi_reboot();
+			reboot_type = BOOT_KBD;
+			break;
 		}      
 	}      
 }
-- 
cgit v1.2.3-59-g8ed1b


From 8c8b8859b64baf6d7c33900e8720c7bafe775b2c Mon Sep 17 00:00:00 2001
From: Daniel Walker <dwalker@mvista.com>
Date: Wed, 30 Jan 2008 13:31:17 +0100
Subject: mcheck mce_64: mce_read_sem to mutex

Converted to a mutex, and changed the name to mce_read_mutex.

Signed-off-by: Daniel Walker <dwalker@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/mcheck/mce_64.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index 0adad772d0da..8cd47fe2ef2c 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -564,7 +564,7 @@ static ssize_t mce_read(struct file *filp, char __user *ubuf, size_t usize,
 			loff_t *off)
 {
 	unsigned long *cpu_tsc;
-	static DECLARE_MUTEX(mce_read_sem);
+	static DEFINE_MUTEX(mce_read_mutex);
 	unsigned next;
 	char __user *buf = ubuf;
 	int i, err;
@@ -573,12 +573,12 @@ static ssize_t mce_read(struct file *filp, char __user *ubuf, size_t usize,
 	if (!cpu_tsc)
 		return -ENOMEM;
 
-	down(&mce_read_sem);
+	mutex_lock(&mce_read_mutex);
 	next = rcu_dereference(mcelog.next);
 
 	/* Only supports full reads right now */
 	if (*off != 0 || usize < MCE_LOG_LEN*sizeof(struct mce)) {
-		up(&mce_read_sem);
+		mutex_unlock(&mce_read_mutex);
 		kfree(cpu_tsc);
 		return -EINVAL;
 	}
@@ -621,7 +621,7 @@ static ssize_t mce_read(struct file *filp, char __user *ubuf, size_t usize,
 			memset(&mcelog.entry[i], 0, sizeof(struct mce));
 		}
 	}
-	up(&mce_read_sem);
+	mutex_unlock(&mce_read_mutex);
 	kfree(cpu_tsc);
 	return err ? -EFAULT : buf - ubuf;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 5b83683f32b113d07edfb67a33ce389fc624423d Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:31:19 +0100
Subject: x86: EFI runtime service support

This patch adds basic runtime services support for EFI x86_64 system.  The
main file of the patch is the addition of efi_64.c for x86_64.  This file is
modeled after the EFI IA32 avatar.  EFI runtime services initialization are
implemented in efi_64.c.  Some x86_64 specifics are worth noting here.  On
x86_64, parameters passed to EFI firmware services need to follow the EFI
calling convention.  For this purpose, a set of functions named efi_call<x>
(<x> is the number of parameters) are implemented.  EFI function calls are
wrapped before calling the firmware service.  The duplicated code between
efi_32.c and efi_64.c is placed in efi.c to remove them from efi_32.c.

Signed-off-by: Chandramouli Narayanan <mouli@linux.intel.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig              |   2 +-
 arch/x86/kernel/Makefile_64   |   1 +
 arch/x86/kernel/efi.c         | 480 ++++++++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/efi_64.c      | 164 +++++++++++++++
 arch/x86/kernel/efi_stub_64.S | 109 ++++++++++
 arch/x86/kernel/setup_64.c    |  17 +-
 include/asm-x86/bootparam.h   |   5 +-
 include/asm-x86/efi.h         |  70 ++++++
 include/asm-x86/fixmap_64.h   |   3 +
 9 files changed, 847 insertions(+), 4 deletions(-)
 create mode 100644 arch/x86/kernel/efi.c
 create mode 100644 arch/x86/kernel/efi_64.c
 create mode 100644 arch/x86/kernel/efi_stub_64.S
 create mode 100644 include/asm-x86/efi.h

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fef944bb920e..23936301db56 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -959,7 +959,7 @@ config MTRR
 config EFI
 	def_bool n
 	prompt "Boot from EFI support"
-	depends on X86_32 && ACPI
+	depends on ACPI
 	---help---
 	This enables the kernel to boot on EFI platforms using
 	system configuration information passed to it from the firmware.
diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index 2ec96acf6486..e5093dd8cf01 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -39,6 +39,7 @@ obj-$(CONFIG_X86_PM_TIMER)	+= pmtimer_64.o
 obj-$(CONFIG_X86_VSMP)		+= vsmp_64.o
 obj-$(CONFIG_K8_NB)		+= k8.o
 obj-$(CONFIG_AUDIT)		+= audit_64.o
+obj-$(CONFIG_EFI)		+= efi.o efi_64.o efi_stub_64.o
 
 obj-$(CONFIG_MODULES)		+= module_64.o
 obj-$(CONFIG_PCI)		+= early-quirks.o
diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
new file mode 100644
index 000000000000..0a61522e85c7
--- /dev/null
+++ b/arch/x86/kernel/efi.c
@@ -0,0 +1,480 @@
+/*
+ * Common EFI (Extensible Firmware Interface) support functions
+ * Based on Extensible Firmware Interface Specification version 1.0
+ *
+ * Copyright (C) 1999 VA Linux Systems
+ * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
+ * Copyright (C) 1999-2002 Hewlett-Packard Co.
+ *	David Mosberger-Tang <davidm@hpl.hp.com>
+ *	Stephane Eranian <eranian@hpl.hp.com>
+ * Copyright (C) 2005-2008 Intel Co.
+ *	Fenghua Yu <fenghua.yu@intel.com>
+ *	Bibo Mao <bibo.mao@intel.com>
+ *	Chandramouli Narayanan <mouli@linux.intel.com>
+ *	Huang Ying <ying.huang@intel.com>
+ *
+ * Copied from efi_32.c to eliminate the duplicated code between EFI
+ * 32/64 support code. --ying 2007-10-26
+ *
+ * All EFI Runtime Services are not implemented yet as EFI only
+ * supports physical mode addressing on SoftSDV. This is to be fixed
+ * in a future version.  --drummond 1999-07-20
+ *
+ * Implemented EFI runtime services and virtual mode calls.  --davidm
+ *
+ * Goutham Rao: <goutham.rao@intel.com>
+ *	Skip non-WB memory and ignore empty memory ranges.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/efi.h>
+#include <linux/bootmem.h>
+#include <linux/spinlock.h>
+#include <linux/uaccess.h>
+#include <linux/time.h>
+#include <linux/io.h>
+#include <linux/reboot.h>
+#include <linux/bcd.h>
+
+#include <asm/setup.h>
+#include <asm/efi.h>
+#include <asm/time.h>
+
+#define EFI_DEBUG	1
+#define PFX 		"EFI: "
+
+int efi_enabled;
+EXPORT_SYMBOL(efi_enabled);
+
+struct efi efi;
+EXPORT_SYMBOL(efi);
+
+struct efi_memory_map memmap;
+
+struct efi efi_phys __initdata;
+static efi_system_table_t efi_systab __initdata;
+
+static efi_status_t virt_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
+{
+	return efi_call_virt2(get_time, tm, tc);
+}
+
+static efi_status_t virt_efi_set_time(efi_time_t *tm)
+{
+	return efi_call_virt1(set_time, tm);
+}
+
+static efi_status_t virt_efi_get_wakeup_time(efi_bool_t *enabled,
+					     efi_bool_t *pending,
+					     efi_time_t *tm)
+{
+	return efi_call_virt3(get_wakeup_time,
+			      enabled, pending, tm);
+}
+
+static efi_status_t virt_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm)
+{
+	return efi_call_virt2(set_wakeup_time,
+			      enabled, tm);
+}
+
+static efi_status_t virt_efi_get_variable(efi_char16_t *name,
+					  efi_guid_t *vendor,
+					  u32 *attr,
+					  unsigned long *data_size,
+					  void *data)
+{
+	return efi_call_virt5(get_variable,
+			      name, vendor, attr,
+			      data_size, data);
+}
+
+static efi_status_t virt_efi_get_next_variable(unsigned long *name_size,
+					       efi_char16_t *name,
+					       efi_guid_t *vendor)
+{
+	return efi_call_virt3(get_next_variable,
+			      name_size, name, vendor);
+}
+
+static efi_status_t virt_efi_set_variable(efi_char16_t *name,
+					  efi_guid_t *vendor,
+					  unsigned long attr,
+					  unsigned long data_size,
+					  void *data)
+{
+	return efi_call_virt5(set_variable,
+			      name, vendor, attr,
+			      data_size, data);
+}
+
+static efi_status_t virt_efi_get_next_high_mono_count(u32 *count)
+{
+	return efi_call_virt1(get_next_high_mono_count, count);
+}
+
+static void virt_efi_reset_system(int reset_type,
+				  efi_status_t status,
+				  unsigned long data_size,
+				  efi_char16_t *data)
+{
+	efi_call_virt4(reset_system, reset_type, status,
+		       data_size, data);
+}
+
+static efi_status_t virt_efi_set_virtual_address_map(
+	unsigned long memory_map_size,
+	unsigned long descriptor_size,
+	u32 descriptor_version,
+	efi_memory_desc_t *virtual_map)
+{
+	return efi_call_virt4(set_virtual_address_map,
+			      memory_map_size, descriptor_size,
+			      descriptor_version, virtual_map);
+}
+
+static efi_status_t __init phys_efi_set_virtual_address_map(
+	unsigned long memory_map_size,
+	unsigned long descriptor_size,
+	u32 descriptor_version,
+	efi_memory_desc_t *virtual_map)
+{
+	efi_status_t status;
+
+	efi_call_phys_prelog();
+	status = efi_call_phys4(efi_phys.set_virtual_address_map,
+				memory_map_size, descriptor_size,
+				descriptor_version, virtual_map);
+	efi_call_phys_epilog();
+	return status;
+}
+
+static efi_status_t __init phys_efi_get_time(efi_time_t *tm,
+					     efi_time_cap_t *tc)
+{
+	efi_status_t status;
+
+	efi_call_phys_prelog();
+	status = efi_call_phys2(efi_phys.get_time, tm, tc);
+	efi_call_phys_epilog();
+	return status;
+}
+
+int efi_set_rtc_mmss(unsigned long nowtime)
+{
+	int real_seconds, real_minutes;
+	efi_status_t 	status;
+	efi_time_t 	eft;
+	efi_time_cap_t 	cap;
+
+	status = efi.get_time(&eft, &cap);
+	if (status != EFI_SUCCESS) {
+		printk(KERN_ERR "Oops: efitime: can't read time!\n");
+		return -1;
+	}
+
+	real_seconds = nowtime % 60;
+	real_minutes = nowtime / 60;
+	if (((abs(real_minutes - eft.minute) + 15)/30) & 1)
+		real_minutes += 30;
+	real_minutes %= 60;
+	eft.minute = real_minutes;
+	eft.second = real_seconds;
+
+	status = efi.set_time(&eft);
+	if (status != EFI_SUCCESS) {
+		printk(KERN_ERR "Oops: efitime: can't write time!\n");
+		return -1;
+	}
+	return 0;
+}
+
+unsigned long efi_get_time(void)
+{
+	efi_status_t status;
+	efi_time_t eft;
+	efi_time_cap_t cap;
+
+	status = efi.get_time(&eft, &cap);
+	if (status != EFI_SUCCESS)
+		printk(KERN_ERR "Oops: efitime: can't read time!\n");
+
+	return mktime(eft.year, eft.month, eft.day, eft.hour,
+		      eft.minute, eft.second);
+}
+
+#if EFI_DEBUG
+static void __init print_efi_memmap(void)
+{
+	efi_memory_desc_t *md;
+	void *p;
+	int i;
+
+	for (p = memmap.map, i = 0;
+	     p < memmap.map_end;
+	     p += memmap.desc_size, i++) {
+		md = p;
+		printk(KERN_INFO PFX "mem%02u: type=%u, attr=0x%llx, "
+			"range=[0x%016llx-0x%016llx) (%lluMB)\n",
+			i, md->type, md->attribute, md->phys_addr,
+			md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT),
+			(md->num_pages >> (20 - EFI_PAGE_SHIFT)));
+	}
+}
+#endif  /*  EFI_DEBUG  */
+
+void __init efi_init(void)
+{
+	efi_config_table_t *config_tables;
+	efi_runtime_services_t *runtime;
+	efi_char16_t *c16;
+	char vendor[100] = "unknown";
+	int i = 0;
+	void *tmp;
+
+#ifdef CONFIG_X86_32
+	efi_phys.systab = (efi_system_table_t *)boot_params.efi_info.efi_systab;
+	memmap.phys_map = (void *)boot_params.efi_info.efi_memmap;
+#else
+	efi_phys.systab = (efi_system_table_t *)
+		(boot_params.efi_info.efi_systab |
+		 ((__u64)boot_params.efi_info.efi_systab_hi<<32));
+	memmap.phys_map = (void *)
+		(boot_params.efi_info.efi_memmap |
+		 ((__u64)boot_params.efi_info.efi_memmap_hi<<32));
+#endif
+	memmap.nr_map = boot_params.efi_info.efi_memmap_size /
+		boot_params.efi_info.efi_memdesc_size;
+	memmap.desc_version = boot_params.efi_info.efi_memdesc_version;
+	memmap.desc_size = boot_params.efi_info.efi_memdesc_size;
+
+	efi.systab = efi_early_ioremap((unsigned long)efi_phys.systab,
+				       sizeof(efi_system_table_t));
+	if (efi.systab == NULL)
+		printk(KERN_ERR "Couldn't map the EFI system table!\n");
+	memcpy(&efi_systab, efi.systab, sizeof(efi_system_table_t));
+	efi_early_iounmap(efi.systab, sizeof(efi_system_table_t));
+	efi.systab = &efi_systab;
+
+	/*
+	 * Verify the EFI Table
+	 */
+	if (efi.systab->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE)
+		printk(KERN_ERR "EFI system table signature incorrect!\n");
+	if ((efi.systab->hdr.revision >> 16) == 0)
+		printk(KERN_ERR "Warning: EFI system table version "
+		       "%d.%02d, expected 1.00 or greater!\n",
+		       efi.systab->hdr.revision >> 16,
+		       efi.systab->hdr.revision & 0xffff);
+
+	/*
+	 * Show what we know for posterity
+	 */
+	c16 = tmp = efi_early_ioremap(efi.systab->fw_vendor, 2);
+	if (c16) {
+		for (i = 0; i < sizeof(vendor) && *c16; ++i)
+			vendor[i] = *c16++;
+		vendor[i] = '\0';
+	} else
+		printk(KERN_ERR PFX "Could not map the firmware vendor!\n");
+	efi_early_iounmap(tmp, 2);
+
+	printk(KERN_INFO "EFI v%u.%.02u by %s \n",
+	       efi.systab->hdr.revision >> 16,
+	       efi.systab->hdr.revision & 0xffff, vendor);
+
+	/*
+	 * Let's see what config tables the firmware passed to us.
+	 */
+	config_tables = efi_early_ioremap(
+		efi.systab->tables,
+		efi.systab->nr_tables * sizeof(efi_config_table_t));
+	if (config_tables == NULL)
+		printk(KERN_ERR "Could not map EFI Configuration Table!\n");
+
+	printk(KERN_INFO);
+	for (i = 0; i < efi.systab->nr_tables; i++) {
+		if (!efi_guidcmp(config_tables[i].guid, MPS_TABLE_GUID)) {
+			efi.mps = config_tables[i].table;
+			printk(" MPS=0x%lx ", config_tables[i].table);
+		} else if (!efi_guidcmp(config_tables[i].guid,
+					ACPI_20_TABLE_GUID)) {
+			efi.acpi20 = config_tables[i].table;
+			printk(" ACPI 2.0=0x%lx ", config_tables[i].table);
+		} else if (!efi_guidcmp(config_tables[i].guid,
+					ACPI_TABLE_GUID)) {
+			efi.acpi = config_tables[i].table;
+			printk(" ACPI=0x%lx ", config_tables[i].table);
+		} else if (!efi_guidcmp(config_tables[i].guid,
+					SMBIOS_TABLE_GUID)) {
+			efi.smbios = config_tables[i].table;
+			printk(" SMBIOS=0x%lx ", config_tables[i].table);
+		} else if (!efi_guidcmp(config_tables[i].guid,
+					HCDP_TABLE_GUID)) {
+			efi.hcdp = config_tables[i].table;
+			printk(" HCDP=0x%lx ", config_tables[i].table);
+		} else if (!efi_guidcmp(config_tables[i].guid,
+					UGA_IO_PROTOCOL_GUID)) {
+			efi.uga = config_tables[i].table;
+			printk(" UGA=0x%lx ", config_tables[i].table);
+		}
+	}
+	printk("\n");
+	efi_early_iounmap(config_tables,
+			  efi.systab->nr_tables * sizeof(efi_config_table_t));
+
+	/*
+	 * Check out the runtime services table. We need to map
+	 * the runtime services table so that we can grab the physical
+	 * address of several of the EFI runtime functions, needed to
+	 * set the firmware into virtual mode.
+	 */
+	runtime = efi_early_ioremap((unsigned long)efi.systab->runtime,
+				    sizeof(efi_runtime_services_t));
+	if (runtime != NULL) {
+		/*
+		 * We will only need *early* access to the following
+		 * two EFI runtime services before set_virtual_address_map
+		 * is invoked.
+		 */
+		efi_phys.get_time = (efi_get_time_t *)runtime->get_time;
+		efi_phys.set_virtual_address_map =
+			(efi_set_virtual_address_map_t *)
+			runtime->set_virtual_address_map;
+		/*
+		 * Make efi_get_time can be called before entering
+		 * virtual mode.
+		 */
+		efi.get_time = phys_efi_get_time;
+	} else
+		printk(KERN_ERR "Could not map the EFI runtime service "
+		       "table!\n");
+	efi_early_iounmap(runtime, sizeof(efi_runtime_services_t));
+
+	/* Map the EFI memory map */
+	memmap.map = efi_early_ioremap((unsigned long)memmap.phys_map,
+				       memmap.nr_map * memmap.desc_size);
+	if (memmap.map == NULL)
+		printk(KERN_ERR "Could not map the EFI memory map!\n");
+	memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size);
+	if (memmap.desc_size != sizeof(efi_memory_desc_t))
+		printk(KERN_WARNING "Kernel-defined memdesc"
+		       "doesn't match the one from EFI!\n");
+
+#ifdef CONFIG_X86_64
+	/* Setup for EFI runtime service */
+	reboot_type = BOOT_EFI;
+
+#endif
+#if EFI_DEBUG
+	print_efi_memmap();
+#endif
+}
+
+/*
+ * This function will switch the EFI runtime services to virtual mode.
+ * Essentially, look through the EFI memmap and map every region that
+ * has the runtime attribute bit set in its memory descriptor and update
+ * that memory descriptor with the virtual address obtained from ioremap().
+ * This enables the runtime services to be called without having to
+ * thunk back into physical mode for every invocation.
+ */
+void __init efi_enter_virtual_mode(void)
+{
+	efi_memory_desc_t *md;
+	efi_status_t status;
+	unsigned long end;
+	void *p;
+
+	efi.systab = NULL;
+	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
+		md = p;
+		if (!(md->attribute & EFI_MEMORY_RUNTIME))
+			continue;
+		if ((md->attribute & EFI_MEMORY_WB) &&
+		    (((md->phys_addr + (md->num_pages<<EFI_PAGE_SHIFT)) >>
+		      PAGE_SHIFT) < end_pfn_map))
+			md->virt_addr = (unsigned long)__va(md->phys_addr);
+		else
+			md->virt_addr = (unsigned long)
+				efi_ioremap(md->phys_addr,
+					    md->num_pages << EFI_PAGE_SHIFT);
+		if (!md->virt_addr)
+			printk(KERN_ERR PFX "ioremap of 0x%llX failed!\n",
+			       (unsigned long long)md->phys_addr);
+		end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
+		if ((md->phys_addr <= (unsigned long)efi_phys.systab) &&
+		    ((unsigned long)efi_phys.systab < end))
+			efi.systab = (efi_system_table_t *)(unsigned long)
+				(md->virt_addr - md->phys_addr +
+				 (unsigned long)efi_phys.systab);
+	}
+
+	BUG_ON(!efi.systab);
+
+	status = phys_efi_set_virtual_address_map(
+		memmap.desc_size * memmap.nr_map,
+		memmap.desc_size,
+		memmap.desc_version,
+		memmap.phys_map);
+
+	if (status != EFI_SUCCESS) {
+		printk(KERN_ALERT "Unable to switch EFI into virtual mode "
+		       "(status=%lx)!\n", status);
+		panic("EFI call to SetVirtualAddressMap() failed!");
+	}
+
+	/*
+	 * Now that EFI is in virtual mode, update the function
+	 * pointers in the runtime service table to the new virtual addresses.
+	 *
+	 * Call EFI services through wrapper functions.
+	 */
+	efi.get_time = virt_efi_get_time;
+	efi.set_time = virt_efi_set_time;
+	efi.get_wakeup_time = virt_efi_get_wakeup_time;
+	efi.set_wakeup_time = virt_efi_set_wakeup_time;
+	efi.get_variable = virt_efi_get_variable;
+	efi.get_next_variable = virt_efi_get_next_variable;
+	efi.set_variable = virt_efi_set_variable;
+	efi.get_next_high_mono_count = virt_efi_get_next_high_mono_count;
+	efi.reset_system = virt_efi_reset_system;
+	efi.set_virtual_address_map = virt_efi_set_virtual_address_map;
+#ifdef CONFIG_X86_64
+	runtime_code_page_mkexec();
+#endif
+}
+
+/*
+ * Convenience functions to obtain memory types and attributes
+ */
+u32 efi_mem_type(unsigned long phys_addr)
+{
+	efi_memory_desc_t *md;
+	void *p;
+
+	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
+		md = p;
+		if ((md->phys_addr <= phys_addr) &&
+		    (phys_addr < (md->phys_addr +
+				  (md->num_pages << EFI_PAGE_SHIFT))))
+			return md->type;
+	}
+	return 0;
+}
+
+u64 efi_mem_attributes(unsigned long phys_addr)
+{
+	efi_memory_desc_t *md;
+	void *p;
+
+	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
+		md = p;
+		if ((md->phys_addr <= phys_addr) &&
+		    (phys_addr < (md->phys_addr +
+				  (md->num_pages << EFI_PAGE_SHIFT))))
+			return md->attribute;
+	}
+	return 0;
+}
diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c
new file mode 100644
index 000000000000..f2000dbc7195
--- /dev/null
+++ b/arch/x86/kernel/efi_64.c
@@ -0,0 +1,164 @@
+/*
+ * x86_64 specific EFI support functions
+ * Based on Extensible Firmware Interface Specification version 1.0
+ *
+ * Copyright (C) 2005-2008 Intel Co.
+ *	Fenghua Yu <fenghua.yu@intel.com>
+ *	Bibo Mao <bibo.mao@intel.com>
+ *	Chandramouli Narayanan <mouli@linux.intel.com>
+ *	Huang Ying <ying.huang@intel.com>
+ *
+ * Code to convert EFI to E820 map has been implemented in elilo bootloader
+ * based on a EFI patch by Edgar Hucek. Based on the E820 map, the page table
+ * is setup appropriately for EFI runtime code.
+ * - mouli 06/14/2007.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/bootmem.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/efi.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+#include <linux/reboot.h>
+
+#include <asm/setup.h>
+#include <asm/page.h>
+#include <asm/e820.h>
+#include <asm/pgtable.h>
+#include <asm/tlbflush.h>
+#include <asm/cacheflush.h>
+#include <asm/proto.h>
+#include <asm/efi.h>
+
+static pgd_t save_pgd __initdata;
+static unsigned long efi_flags __initdata;
+
+static int __init setup_noefi(char *arg)
+{
+	efi_enabled = 0;
+	return 0;
+}
+early_param("noefi", setup_noefi);
+
+static void __init early_mapping_set_exec(unsigned long start,
+					  unsigned long end,
+					  int executable)
+{
+	pte_t *kpte;
+	int level;
+
+	while (start < end) {
+		kpte = lookup_address((unsigned long)__va(start), &level);
+		BUG_ON(!kpte);
+		if (executable)
+			set_pte(kpte, pte_mkexec(*kpte));
+		else
+			set_pte(kpte, __pte((pte_val(*kpte) | _PAGE_NX) & \
+					    __supported_pte_mask));
+		if (pte_huge(*kpte))
+			start = (start + PMD_SIZE) & PMD_MASK;
+		else
+			start = (start + PAGE_SIZE) & PAGE_MASK;
+	}
+}
+
+static void __init early_runtime_code_mapping_set_exec(int executable)
+{
+	efi_memory_desc_t *md;
+	void *p;
+
+	/* Make EFI runtime service code area executable */
+	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
+		md = p;
+		if (md->type == EFI_RUNTIME_SERVICES_CODE) {
+			unsigned long end;
+			end = md->phys_addr + (md->num_pages << PAGE_SHIFT);
+			early_mapping_set_exec(md->phys_addr, end, executable);
+		}
+	}
+}
+
+void __init efi_call_phys_prelog(void)
+{
+	unsigned long vaddress;
+
+	local_irq_save(efi_flags);
+	early_runtime_code_mapping_set_exec(1);
+	vaddress = (unsigned long)__va(0x0UL);
+	pgd_val(save_pgd) = pgd_val(*pgd_offset_k(0x0UL));
+	set_pgd(pgd_offset_k(0x0UL), *pgd_offset_k(vaddress));
+	__flush_tlb_all();
+}
+
+void __init efi_call_phys_epilog(void)
+{
+	/*
+	 * After the lock is released, the original page table is restored.
+	 */
+	set_pgd(pgd_offset_k(0x0UL), save_pgd);
+	early_runtime_code_mapping_set_exec(0);
+	__flush_tlb_all();
+	local_irq_restore(efi_flags);
+}
+
+/*
+ * We need to map the EFI memory map again after init_memory_mapping().
+ */
+void __init efi_map_memmap(void)
+{
+	memmap.map = __va(memmap.phys_map);
+	memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size);
+}
+
+void __init efi_reserve_bootmem(void)
+{
+	reserve_bootmem_generic((unsigned long)memmap.phys_map,
+				memmap.nr_map * memmap.desc_size);
+}
+
+void __init runtime_code_page_mkexec(void)
+{
+	efi_memory_desc_t *md;
+	void *p;
+
+	/* Make EFI runtime service code area executable */
+	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
+		md = p;
+		if (md->type == EFI_RUNTIME_SERVICES_CODE)
+			change_page_attr_addr(md->virt_addr,
+					      md->num_pages,
+					      PAGE_KERNEL_EXEC);
+	}
+	__flush_tlb_all();
+}
+
+void __iomem * __init efi_ioremap(unsigned long offset,
+				  unsigned long size)
+{
+	static unsigned pages_mapped;
+	unsigned long last_addr;
+	unsigned i, pages;
+
+	last_addr = offset + size - 1;
+	offset &= PAGE_MASK;
+	pages = (PAGE_ALIGN(last_addr) - offset) >> PAGE_SHIFT;
+	if (pages_mapped + pages > MAX_EFI_IO_PAGES)
+		return NULL;
+
+	for (i = 0; i < pages; i++) {
+		set_fixmap_nocache(FIX_EFI_IO_MAP_FIRST_PAGE - pages_mapped,
+				   offset);
+		offset += PAGE_SIZE;
+		pages_mapped++;
+	}
+
+	return (void __iomem *)__fix_to_virt(FIX_EFI_IO_MAP_FIRST_PAGE - \
+					     (pages_mapped - pages));
+}
diff --git a/arch/x86/kernel/efi_stub_64.S b/arch/x86/kernel/efi_stub_64.S
new file mode 100644
index 000000000000..99b47d48c9f4
--- /dev/null
+++ b/arch/x86/kernel/efi_stub_64.S
@@ -0,0 +1,109 @@
+/*
+ * Function calling ABI conversion from Linux to EFI for x86_64
+ *
+ * Copyright (C) 2007 Intel Corp
+ *	Bibo Mao <bibo.mao@intel.com>
+ *	Huang Ying <ying.huang@intel.com>
+ */
+
+#include <linux/linkage.h>
+
+#define SAVE_XMM			\
+	mov %rsp, %rax;			\
+	subq $0x70, %rsp;		\
+	and $~0xf, %rsp;		\
+	mov %rax, (%rsp);		\
+	mov %cr0, %rax;			\
+	clts;				\
+	mov %rax, 0x8(%rsp);		\
+	movaps %xmm0, 0x60(%rsp);	\
+	movaps %xmm1, 0x50(%rsp);	\
+	movaps %xmm2, 0x40(%rsp);	\
+	movaps %xmm3, 0x30(%rsp);	\
+	movaps %xmm4, 0x20(%rsp);	\
+	movaps %xmm5, 0x10(%rsp)
+
+#define RESTORE_XMM			\
+	movaps 0x60(%rsp), %xmm0;	\
+	movaps 0x50(%rsp), %xmm1;	\
+	movaps 0x40(%rsp), %xmm2;	\
+	movaps 0x30(%rsp), %xmm3;	\
+	movaps 0x20(%rsp), %xmm4;	\
+	movaps 0x10(%rsp), %xmm5;	\
+	mov 0x8(%rsp), %rsi;		\
+	mov %rsi, %cr0;			\
+	mov (%rsp), %rsp
+
+ENTRY(efi_call0)
+	SAVE_XMM
+	subq $32, %rsp
+	call *%rdi
+	addq $32, %rsp
+	RESTORE_XMM
+	ret
+
+ENTRY(efi_call1)
+	SAVE_XMM
+	subq $32, %rsp
+	mov  %rsi, %rcx
+	call *%rdi
+	addq $32, %rsp
+	RESTORE_XMM
+	ret
+
+ENTRY(efi_call2)
+	SAVE_XMM
+	subq $32, %rsp
+	mov  %rsi, %rcx
+	call *%rdi
+	addq $32, %rsp
+	RESTORE_XMM
+	ret
+
+ENTRY(efi_call3)
+	SAVE_XMM
+	subq $32, %rsp
+	mov  %rcx, %r8
+	mov  %rsi, %rcx
+	call *%rdi
+	addq $32, %rsp
+	RESTORE_XMM
+	ret
+
+ENTRY(efi_call4)
+	SAVE_XMM
+	subq $32, %rsp
+	mov %r8, %r9
+	mov %rcx, %r8
+	mov %rsi, %rcx
+	call *%rdi
+	addq $32, %rsp
+	RESTORE_XMM
+	ret
+
+ENTRY(efi_call5)
+	SAVE_XMM
+	subq $48, %rsp
+	mov %r9, 32(%rsp)
+	mov %r8, %r9
+	mov %rcx, %r8
+	mov %rsi, %rcx
+	call *%rdi
+	addq $48, %rsp
+	RESTORE_XMM
+	ret
+
+ENTRY(efi_call6)
+	SAVE_XMM
+	mov (%rsp), %rax
+	mov 8(%rax), %rax
+	subq $48, %rsp
+	mov %r9, 32(%rsp)
+	mov %rax, 40(%rsp)
+	mov %r8, %r9
+	mov %rcx, %r8
+	mov %rsi, %rcx
+	call *%rdi
+	addq $48, %rsp
+	RESTORE_XMM
+	ret
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 8dd110d93e73..90b8bb4748b9 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -30,6 +30,7 @@
 #include <linux/crash_dump.h>
 #include <linux/root_dev.h>
 #include <linux/pci.h>
+#include <linux/efi.h>
 #include <linux/acpi.h>
 #include <linux/kallsyms.h>
 #include <linux/edd.h>
@@ -299,6 +300,11 @@ void __init setup_arch(char **cmdline_p)
 	rd_prompt = ((boot_params.hdr.ram_size & RAMDISK_PROMPT_FLAG) != 0);
 	rd_doload = ((boot_params.hdr.ram_size & RAMDISK_LOAD_FLAG) != 0);
 #endif
+#ifdef CONFIG_EFI
+	if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
+		     "EL64", 4))
+		efi_enabled = 1;
+#endif
 
 	ARCH_SETUP
 
@@ -341,6 +347,8 @@ void __init setup_arch(char **cmdline_p)
 	discover_ebda();
 
 	init_memory_mapping(0, (end_pfn_map << PAGE_SHIFT));
+	if (efi_enabled)
+		efi_init();
 
 	dmi_scan_machine();
 
@@ -414,6 +422,12 @@ void __init setup_arch(char **cmdline_p)
 	 */
        acpi_reserve_bootmem();
 #endif
+
+	if (efi_enabled) {
+		efi_map_memmap();
+		efi_reserve_bootmem();
+	}
+
        /*
 	* Find and reserve possible boot-time SMP configuration:
 	*/
@@ -479,7 +493,8 @@ void __init setup_arch(char **cmdline_p)
 
 #ifdef CONFIG_VT
 #if defined(CONFIG_VGA_CONSOLE)
-	conswitchp = &vga_con;
+	if (!efi_enabled || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY))
+		conswitchp = &vga_con;
 #elif defined(CONFIG_DUMMY_CONSOLE)
 	conswitchp = &dummy_con;
 #endif
diff --git a/include/asm-x86/bootparam.h b/include/asm-x86/bootparam.h
index 19f3ddf2df4b..51151356840f 100644
--- a/include/asm-x86/bootparam.h
+++ b/include/asm-x86/bootparam.h
@@ -54,13 +54,14 @@ struct sys_desc_table {
 };
 
 struct efi_info {
-	__u32 _pad1;
+	__u32 efi_loader_signature;
 	__u32 efi_systab;
 	__u32 efi_memdesc_size;
 	__u32 efi_memdesc_version;
 	__u32 efi_memmap;
 	__u32 efi_memmap_size;
-	__u32 _pad2[2];
+	__u32 efi_systab_hi;
+	__u32 efi_memmap_hi;
 };
 
 /* The so-called "zeropage" */
diff --git a/include/asm-x86/efi.h b/include/asm-x86/efi.h
new file mode 100644
index 000000000000..1459d3d58653
--- /dev/null
+++ b/include/asm-x86/efi.h
@@ -0,0 +1,70 @@
+#ifndef _ASM_X86_EFI_H
+#define _ASM_X86_EFI_H
+
+#ifdef CONFIG_X86_32
+#else /* !CONFIG_X86_32 */
+
+#define MAX_EFI_IO_PAGES	100
+
+extern u64 efi_call0(void *fp);
+extern u64 efi_call1(void *fp, u64 arg1);
+extern u64 efi_call2(void *fp, u64 arg1, u64 arg2);
+extern u64 efi_call3(void *fp, u64 arg1, u64 arg2, u64 arg3);
+extern u64 efi_call4(void *fp, u64 arg1, u64 arg2, u64 arg3, u64 arg4);
+extern u64 efi_call5(void *fp, u64 arg1, u64 arg2, u64 arg3,
+		     u64 arg4, u64 arg5);
+extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3,
+		     u64 arg4, u64 arg5, u64 arg6);
+
+#define efi_call_phys0(f)			\
+	efi_call0((void *)(f))
+#define efi_call_phys1(f, a1)			\
+	efi_call1((void *)(f), (u64)(a1))
+#define efi_call_phys2(f, a1, a2)			\
+	efi_call2((void *)(f), (u64)(a1), (u64)(a2))
+#define efi_call_phys3(f, a1, a2, a3)				\
+	efi_call3((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3))
+#define efi_call_phys4(f, a1, a2, a3, a4)				\
+	efi_call4((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3),		\
+		  (u64)(a4))
+#define efi_call_phys5(f, a1, a2, a3, a4, a5)				\
+	efi_call5((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3),		\
+		  (u64)(a4), (u64)(a5))
+#define efi_call_phys6(f, a1, a2, a3, a4, a5, a6)			\
+	efi_call6((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3),		\
+		  (u64)(a4), (u64)(a5), (u64)(a6))
+
+#define efi_call_virt0(f)				\
+	efi_call0((void *)(efi.systab->runtime->f))
+#define efi_call_virt1(f, a1)					\
+	efi_call1((void *)(efi.systab->runtime->f), (u64)(a1))
+#define efi_call_virt2(f, a1, a2)					\
+	efi_call2((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2))
+#define efi_call_virt3(f, a1, a2, a3)					\
+	efi_call3((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
+		  (u64)(a3))
+#define efi_call_virt4(f, a1, a2, a3, a4)				\
+	efi_call4((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
+		  (u64)(a3), (u64)(a4))
+#define efi_call_virt5(f, a1, a2, a3, a4, a5)				\
+	efi_call5((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
+		  (u64)(a3), (u64)(a4), (u64)(a5))
+#define efi_call_virt6(f, a1, a2, a3, a4, a5, a6)			\
+	efi_call6((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
+		  (u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6))
+
+#define efi_early_ioremap(addr, size)		early_ioremap(addr, size)
+#define efi_early_iounmap(vaddr, size)		early_iounmap(vaddr, size)
+
+extern void *efi_ioremap(unsigned long offset, unsigned long size);
+
+extern int efi_time;
+
+#endif /* CONFIG_X86_32 */
+
+extern void efi_reserve_bootmem(void);
+extern void efi_call_phys_prelog(void);
+extern void efi_call_phys_epilog(void);
+extern void runtime_code_page_mkexec(void);
+
+#endif
diff --git a/include/asm-x86/fixmap_64.h b/include/asm-x86/fixmap_64.h
index cdfbe4a6ae6f..8f44782e5fe5 100644
--- a/include/asm-x86/fixmap_64.h
+++ b/include/asm-x86/fixmap_64.h
@@ -15,6 +15,7 @@
 #include <asm/apicdef.h>
 #include <asm/page.h>
 #include <asm/vsyscall.h>
+#include <asm/efi.h>
 
 /*
  * Here we define all the compile-time 'special' virtual
@@ -41,6 +42,8 @@ enum fixed_addresses {
 	FIX_APIC_BASE,	/* local (CPU) APIC) -- required for SMP or not */
 	FIX_IO_APIC_BASE_0,
 	FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS-1,
+	FIX_EFI_IO_MAP_LAST_PAGE,
+	FIX_EFI_IO_MAP_FIRST_PAGE = FIX_EFI_IO_MAP_LAST_PAGE+MAX_EFI_IO_PAGES-1,
 	__end_of_fixed_addresses
 };
 
-- 
cgit v1.2.3-59-g8ed1b


From de18c850af701ac9512b7239e88fa45e4c168771 Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:31:19 +0100
Subject: x86: EFI runtime service support: EFI runtime services

This patch adds support for several EFI runtime services for EFI x86_64
system.

The EFI support for emergency_restart is added.

Signed-off-by: Chandramouli Narayanan <mouli@linux.intel.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/reboot_64.c         | 20 +++++++++++++-------
 include/asm-x86/emergency-restart.h |  9 +++++++++
 2 files changed, 22 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/reboot_64.c b/arch/x86/kernel/reboot_64.c
index 307f996a3933..d6bdf93ffca9 100644
--- a/arch/x86/kernel/reboot_64.c
+++ b/arch/x86/kernel/reboot_64.c
@@ -9,6 +9,7 @@
 #include <linux/pm.h>
 #include <linux/kdebug.h>
 #include <linux/sched.h>
+#include <linux/efi.h>
 #include <acpi/reboot.h>
 #include <asm/io.h>
 #include <asm/delay.h>
@@ -28,20 +29,17 @@ void (*pm_power_off)(void);
 EXPORT_SYMBOL(pm_power_off);
 
 static long no_idt[3];
-static enum { 
-	BOOT_TRIPLE = 't',
-	BOOT_KBD = 'k',
-	BOOT_ACPI = 'a'
-} reboot_type = BOOT_KBD;
+enum reboot_type reboot_type = BOOT_KBD;
 static int reboot_mode = 0;
 int reboot_force;
 
-/* reboot=t[riple] | k[bd] [, [w]arm | [c]old]
+/* reboot=t[riple] | k[bd] | e[fi] [, [w]arm | [c]old]
    warm   Don't set the cold reboot flag
    cold   Set the cold reboot flag
    triple Force a triple fault (init)
    kbd    Use the keyboard controller. cold reset (default)
    acpi   Use the RESET_REG in the FADT
+   efi    Use efi reset_system runtime service
    force  Avoid anything that could hang.
  */ 
 static int __init reboot_setup(char *str)
@@ -60,6 +58,7 @@ static int __init reboot_setup(char *str)
 		case 'a':
 		case 'b':
 		case 'k':
+		case 'e':
 			reboot_type = *str;
 			break;
 		case 'f':
@@ -155,7 +154,14 @@ void machine_emergency_restart(void)
 			acpi_reboot();
 			reboot_type = BOOT_KBD;
 			break;
-		}      
+
+		case BOOT_EFI:
+			if (efi_enabled)
+				efi.reset_system(reboot_mode ? EFI_RESET_WARM : EFI_RESET_COLD,
+						 EFI_SUCCESS, 0, NULL);
+			reboot_type = BOOT_KBD;
+			break;
+		}
 	}      
 }
 
diff --git a/include/asm-x86/emergency-restart.h b/include/asm-x86/emergency-restart.h
index 680c39563345..54189084462a 100644
--- a/include/asm-x86/emergency-restart.h
+++ b/include/asm-x86/emergency-restart.h
@@ -1,6 +1,15 @@
 #ifndef _ASM_EMERGENCY_RESTART_H
 #define _ASM_EMERGENCY_RESTART_H
 
+enum reboot_type {
+	BOOT_TRIPLE = 't',
+	BOOT_KBD = 'k',
+	BOOT_ACPI = 'a',
+	BOOT_EFI = 'e'
+};
+
+extern enum reboot_type reboot_type;
+
 extern void machine_emergency_restart(void);
 
 #endif /* _ASM_EMERGENCY_RESTART_H */
-- 
cgit v1.2.3-59-g8ed1b


From e429795c68d3001ecae74f6465420c9f043b0ece Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:31:19 +0100
Subject: x86: EFI runtime service support: remove duplicated code from
 efi_32.c

This patch removes the duplicated code between efi_32.c and efi.c.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile_32 |   2 +-
 arch/x86/kernel/e820_32.c   |   5 -
 arch/x86/kernel/efi_32.c    | 430 +-------------------------------------------
 arch/x86/kernel/setup_32.c  |  11 +-
 include/asm-x86/efi.h       |  42 +++++
 5 files changed, 47 insertions(+), 443 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index cc2651bcc07f..a854e23eac0b 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -38,7 +38,7 @@ obj-$(CONFIG_X86_SUMMIT_NUMA)	+= summit_32.o
 obj-$(CONFIG_KPROBES)		+= kprobes_32.o
 obj-$(CONFIG_MODULES)		+= module_32.o
 obj-$(CONFIG_ACPI_SRAT) 	+= srat_32.o
-obj-$(CONFIG_EFI) 		+= efi_32.o efi_stub_32.o
+obj-$(CONFIG_EFI) 		+= efi.o efi_32.o efi_stub_32.o
 obj-$(CONFIG_DOUBLEFAULT) 	+= doublefault_32.o
 obj-$(CONFIG_VM86)		+= vm86_32.o
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
diff --git a/arch/x86/kernel/e820_32.c b/arch/x86/kernel/e820_32.c
index 87cadc86d5ee..56335a85a15a 100644
--- a/arch/x86/kernel/e820_32.c
+++ b/arch/x86/kernel/e820_32.c
@@ -17,11 +17,6 @@
 #include <asm/e820.h>
 #include <asm/setup.h>
 
-#ifdef CONFIG_EFI
-int efi_enabled = 0;
-EXPORT_SYMBOL(efi_enabled);
-#endif
-
 struct e820map e820;
 struct change_member {
 	struct e820entry *pbios; /* pointer to original bios entry */
diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c
index 863e8926f2bb..1df13725e519 100644
--- a/arch/x86/kernel/efi_32.c
+++ b/arch/x86/kernel/efi_32.c
@@ -39,21 +39,8 @@
 #include <asm/desc.h>
 #include <asm/tlbflush.h>
 
-#define EFI_DEBUG	0
 #define PFX 		"EFI: "
 
-extern efi_status_t asmlinkage efi_call_phys(void *, ...);
-
-struct efi efi;
-EXPORT_SYMBOL(efi);
-static struct efi efi_phys;
-struct efi_memory_map memmap;
-
-/*
- * We require an early boot_ioremap mapping mechanism initially
- */
-extern void * boot_ioremap(unsigned long, unsigned long);
-
 /*
  * To make EFI call EFI runtime service in physical addressing mode we need
  * prelog/epilog before/after the invocation to disable interrupt, to
@@ -65,7 +52,7 @@ static unsigned long efi_rt_eflags;
 static DEFINE_SPINLOCK(efi_rt_lock);
 static pgd_t efi_bak_pg_dir_pointer[2];
 
-static void efi_call_phys_prelog(void) __acquires(efi_rt_lock)
+void efi_call_phys_prelog(void) __acquires(efi_rt_lock)
 {
 	unsigned long cr4;
 	unsigned long temp;
@@ -108,7 +95,7 @@ static void efi_call_phys_prelog(void) __acquires(efi_rt_lock)
 	load_gdt(&gdt_descr);
 }
 
-static void efi_call_phys_epilog(void) __releases(efi_rt_lock)
+void efi_call_phys_epilog(void) __releases(efi_rt_lock)
 {
 	unsigned long cr4;
 	struct desc_ptr gdt_descr;
@@ -138,87 +125,6 @@ static void efi_call_phys_epilog(void) __releases(efi_rt_lock)
 	spin_unlock(&efi_rt_lock);
 }
 
-static efi_status_t
-phys_efi_set_virtual_address_map(unsigned long memory_map_size,
-				 unsigned long descriptor_size,
-				 u32 descriptor_version,
-				 efi_memory_desc_t *virtual_map)
-{
-	efi_status_t status;
-
-	efi_call_phys_prelog();
-	status = efi_call_phys(efi_phys.set_virtual_address_map,
-				     memory_map_size, descriptor_size,
-				     descriptor_version, virtual_map);
-	efi_call_phys_epilog();
-	return status;
-}
-
-static efi_status_t
-phys_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
-{
-	efi_status_t status;
-
-	efi_call_phys_prelog();
-	status = efi_call_phys(efi_phys.get_time, tm, tc);
-	efi_call_phys_epilog();
-	return status;
-}
-
-inline int efi_set_rtc_mmss(unsigned long nowtime)
-{
-	int real_seconds, real_minutes;
-	efi_status_t 	status;
-	efi_time_t 	eft;
-	efi_time_cap_t 	cap;
-
-	spin_lock(&efi_rt_lock);
-	status = efi.get_time(&eft, &cap);
-	spin_unlock(&efi_rt_lock);
-	if (status != EFI_SUCCESS)
-		panic("Ooops, efitime: can't read time!\n");
-	real_seconds = nowtime % 60;
-	real_minutes = nowtime / 60;
-
-	if (((abs(real_minutes - eft.minute) + 15)/30) & 1)
-		real_minutes += 30;
-	real_minutes %= 60;
-
-	eft.minute = real_minutes;
-	eft.second = real_seconds;
-
-	if (status != EFI_SUCCESS) {
-		printk("Ooops: efitime: can't read time!\n");
-		return -1;
-	}
-	return 0;
-}
-/*
- * This is used during kernel init before runtime
- * services have been remapped and also during suspend, therefore,
- * we'll need to call both in physical and virtual modes.
- */
-inline unsigned long efi_get_time(void)
-{
-	efi_status_t status;
-	efi_time_t eft;
-	efi_time_cap_t cap;
-
-	if (efi.get_time) {
-		/* if we are in virtual mode use remapped function */
- 		status = efi.get_time(&eft, &cap);
-	} else {
-		/* we are in physical mode */
-		status = phys_efi_get_time(&eft, &cap);
-	}
-
-	if (status != EFI_SUCCESS)
-		printk("Oops: efitime: can't read time status: 0x%lx\n",status);
-
-	return mktime(eft.year, eft.month, eft.day, eft.hour,
-			eft.minute, eft.second);
-}
-
 int is_available_memory(efi_memory_desc_t * md)
 {
 	if (!(md->attribute & EFI_MEMORY_WB))
@@ -250,24 +156,6 @@ void __init efi_map_memmap(void)
 	memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size);
 }
 
-#if EFI_DEBUG
-static void __init print_efi_memmap(void)
-{
-	efi_memory_desc_t *md;
-	void *p;
-	int i;
-
-	for (p = memmap.map, i = 0; p < memmap.map_end; p += memmap.desc_size, i++) {
-		md = p;
-		printk(KERN_INFO "mem%02u: type=%u, attr=0x%llx, "
-			"range=[0x%016llx-0x%016llx) (%lluMB)\n",
-			i, md->type, md->attribute, md->phys_addr,
-			md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT),
-			(md->num_pages >> (20 - EFI_PAGE_SHIFT)));
-	}
-}
-#endif  /*  EFI_DEBUG  */
-
 /*
  * Walks the EFI memory map and calls CALLBACK once for each EFI
  * memory descriptor that has memory that is available for kernel use.
@@ -319,288 +207,6 @@ void efi_memmap_walk(efi_freemem_callback_t callback, void *arg)
 	}
 }
 
-void __init efi_init(void)
-{
-	efi_config_table_t *config_tables;
-	efi_runtime_services_t *runtime;
-	efi_char16_t *c16;
-	char vendor[100] = "unknown";
-	unsigned long num_config_tables;
-	int i = 0;
-
-	memset(&efi, 0, sizeof(efi) );
-	memset(&efi_phys, 0, sizeof(efi_phys));
-
-	efi_phys.systab =
-		(efi_system_table_t *)boot_params.efi_info.efi_systab;
-	memmap.phys_map = (void *)boot_params.efi_info.efi_memmap;
-	memmap.nr_map = boot_params.efi_info.efi_memmap_size/
-		boot_params.efi_info.efi_memdesc_size;
-	memmap.desc_version = boot_params.efi_info.efi_memdesc_version;
-	memmap.desc_size = boot_params.efi_info.efi_memdesc_size;
-
-	efi.systab = (efi_system_table_t *)
-		boot_ioremap((unsigned long) efi_phys.systab,
-			sizeof(efi_system_table_t));
-	/*
-	 * Verify the EFI Table
-	 */
-	if (efi.systab == NULL)
-		printk(KERN_ERR PFX "Woah! Couldn't map the EFI system table.\n");
-	if (efi.systab->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE)
-		printk(KERN_ERR PFX "Woah! EFI system table signature incorrect\n");
-	if ((efi.systab->hdr.revision >> 16) == 0)
-		printk(KERN_ERR PFX "Warning: EFI system table version "
-		       "%d.%02d, expected 1.00 or greater\n",
-		       efi.systab->hdr.revision >> 16,
-		       efi.systab->hdr.revision & 0xffff);
-
-	/*
-	 * Grab some details from the system table
-	 */
-	num_config_tables = efi.systab->nr_tables;
-	config_tables = (efi_config_table_t *)efi.systab->tables;
-	runtime = efi.systab->runtime;
-
-	/*
-	 * Show what we know for posterity
-	 */
-	c16 = (efi_char16_t *) boot_ioremap(efi.systab->fw_vendor, 2);
-	if (c16) {
-		for (i = 0; i < (sizeof(vendor) - 1) && *c16; ++i)
-			vendor[i] = *c16++;
-		vendor[i] = '\0';
-	} else
-		printk(KERN_ERR PFX "Could not map the firmware vendor!\n");
-
-	printk(KERN_INFO PFX "EFI v%u.%.02u by %s \n",
-	       efi.systab->hdr.revision >> 16,
-	       efi.systab->hdr.revision & 0xffff, vendor);
-
-	/*
-	 * Let's see what config tables the firmware passed to us.
-	 */
-	config_tables = (efi_config_table_t *)
-				boot_ioremap((unsigned long) config_tables,
-			        num_config_tables * sizeof(efi_config_table_t));
-
-	if (config_tables == NULL)
-		printk(KERN_ERR PFX "Could not map EFI Configuration Table!\n");
-
-	efi.mps        = EFI_INVALID_TABLE_ADDR;
-	efi.acpi       = EFI_INVALID_TABLE_ADDR;
-	efi.acpi20     = EFI_INVALID_TABLE_ADDR;
-	efi.smbios     = EFI_INVALID_TABLE_ADDR;
-	efi.sal_systab = EFI_INVALID_TABLE_ADDR;
-	efi.boot_info  = EFI_INVALID_TABLE_ADDR;
-	efi.hcdp       = EFI_INVALID_TABLE_ADDR;
-	efi.uga        = EFI_INVALID_TABLE_ADDR;
-
-	for (i = 0; i < num_config_tables; i++) {
-		if (efi_guidcmp(config_tables[i].guid, MPS_TABLE_GUID) == 0) {
-			efi.mps = config_tables[i].table;
-			printk(KERN_INFO " MPS=0x%lx ", config_tables[i].table);
-		} else
-		    if (efi_guidcmp(config_tables[i].guid, ACPI_20_TABLE_GUID) == 0) {
-			efi.acpi20 = config_tables[i].table;
-			printk(KERN_INFO " ACPI 2.0=0x%lx ", config_tables[i].table);
-		} else
-		    if (efi_guidcmp(config_tables[i].guid, ACPI_TABLE_GUID) == 0) {
-			efi.acpi = config_tables[i].table;
-			printk(KERN_INFO " ACPI=0x%lx ", config_tables[i].table);
-		} else
-		    if (efi_guidcmp(config_tables[i].guid, SMBIOS_TABLE_GUID) == 0) {
-			efi.smbios = config_tables[i].table;
-			printk(KERN_INFO " SMBIOS=0x%lx ", config_tables[i].table);
-		} else
-		    if (efi_guidcmp(config_tables[i].guid, HCDP_TABLE_GUID) == 0) {
-			efi.hcdp = config_tables[i].table;
-			printk(KERN_INFO " HCDP=0x%lx ", config_tables[i].table);
-		} else
-		    if (efi_guidcmp(config_tables[i].guid, UGA_IO_PROTOCOL_GUID) == 0) {
-			efi.uga = config_tables[i].table;
-			printk(KERN_INFO " UGA=0x%lx ", config_tables[i].table);
-		}
-	}
-	printk("\n");
-
-	/*
-	 * Check out the runtime services table. We need to map
-	 * the runtime services table so that we can grab the physical
-	 * address of several of the EFI runtime functions, needed to
-	 * set the firmware into virtual mode.
-	 */
-
-	runtime = (efi_runtime_services_t *) boot_ioremap((unsigned long)
-						runtime,
-				      		sizeof(efi_runtime_services_t));
-	if (runtime != NULL) {
-		/*
-	 	 * We will only need *early* access to the following
-		 * two EFI runtime services before set_virtual_address_map
-		 * is invoked.
- 	 	 */
-		efi_phys.get_time = (efi_get_time_t *) runtime->get_time;
-		efi_phys.set_virtual_address_map =
-			(efi_set_virtual_address_map_t *)
-				runtime->set_virtual_address_map;
-	} else
-		printk(KERN_ERR PFX "Could not map the runtime service table!\n");
-
-	/* Map the EFI memory map for use until paging_init() */
-	memmap.map = boot_ioremap(boot_params.efi_info.efi_memmap,
-				  boot_params.efi_info.efi_memmap_size);
-	if (memmap.map == NULL)
-		printk(KERN_ERR PFX "Could not map the EFI memory map!\n");
-
-	memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size);
-
-#if EFI_DEBUG
-	print_efi_memmap();
-#endif
-}
-
-static inline void __init check_range_for_systab(efi_memory_desc_t *md)
-{
-	if (((unsigned long)md->phys_addr <= (unsigned long)efi_phys.systab) &&
-		((unsigned long)efi_phys.systab < md->phys_addr +
-		((unsigned long)md->num_pages << EFI_PAGE_SHIFT))) {
-		unsigned long addr;
-
-		addr = md->virt_addr - md->phys_addr +
-			(unsigned long)efi_phys.systab;
-		efi.systab = (efi_system_table_t *)addr;
-	}
-}
-
-/*
- * Wrap all the virtual calls in a way that forces the parameters on the stack.
- */
-
-#define efi_call_virt(f, args...) \
-     ((efi_##f##_t __attribute__((regparm(0)))*)efi.systab->runtime->f)(args)
-
-static efi_status_t virt_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
-{
-	return efi_call_virt(get_time, tm, tc);
-}
-
-static efi_status_t virt_efi_set_time (efi_time_t *tm)
-{
-	return efi_call_virt(set_time, tm);
-}
-
-static efi_status_t virt_efi_get_wakeup_time (efi_bool_t *enabled,
-					      efi_bool_t *pending,
-					      efi_time_t *tm)
-{
-	return efi_call_virt(get_wakeup_time, enabled, pending, tm);
-}
-
-static efi_status_t virt_efi_set_wakeup_time (efi_bool_t enabled,
-					      efi_time_t *tm)
-{
-	return efi_call_virt(set_wakeup_time, enabled, tm);
-}
-
-static efi_status_t virt_efi_get_variable (efi_char16_t *name,
-					   efi_guid_t *vendor, u32 *attr,
-					   unsigned long *data_size, void *data)
-{
-	return efi_call_virt(get_variable, name, vendor, attr, data_size, data);
-}
-
-static efi_status_t virt_efi_get_next_variable (unsigned long *name_size,
-						efi_char16_t *name,
-						efi_guid_t *vendor)
-{
-	return efi_call_virt(get_next_variable, name_size, name, vendor);
-}
-
-static efi_status_t virt_efi_set_variable (efi_char16_t *name,
-					   efi_guid_t *vendor,
-					   unsigned long attr,
-					   unsigned long data_size, void *data)
-{
-	return efi_call_virt(set_variable, name, vendor, attr, data_size, data);
-}
-
-static efi_status_t virt_efi_get_next_high_mono_count (u32 *count)
-{
-	return efi_call_virt(get_next_high_mono_count, count);
-}
-
-static void virt_efi_reset_system (int reset_type, efi_status_t status,
-				   unsigned long data_size,
-				   efi_char16_t *data)
-{
-	efi_call_virt(reset_system, reset_type, status, data_size, data);
-}
-
-/*
- * This function will switch the EFI runtime services to virtual mode.
- * Essentially, look through the EFI memmap and map every region that
- * has the runtime attribute bit set in its memory descriptor and update
- * that memory descriptor with the virtual address obtained from ioremap().
- * This enables the runtime services to be called without having to
- * thunk back into physical mode for every invocation.
- */
-
-void __init efi_enter_virtual_mode(void)
-{
-	efi_memory_desc_t *md;
-	efi_status_t status;
-	void *p;
-
-	efi.systab = NULL;
-
-	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
-		md = p;
-
-		if (!(md->attribute & EFI_MEMORY_RUNTIME))
-			continue;
-
-		md->virt_addr = (unsigned long)ioremap(md->phys_addr,
-			md->num_pages << EFI_PAGE_SHIFT);
-		if (!(unsigned long)md->virt_addr) {
-			printk(KERN_ERR PFX "ioremap of 0x%lX failed\n",
-				(unsigned long)md->phys_addr);
-		}
-		/* update the virtual address of the EFI system table */
-		check_range_for_systab(md);
-	}
-
-	BUG_ON(!efi.systab);
-
-	status = phys_efi_set_virtual_address_map(
-			memmap.desc_size * memmap.nr_map,
-			memmap.desc_size,
-			memmap.desc_version,
-		       	memmap.phys_map);
-
-	if (status != EFI_SUCCESS) {
-		printk (KERN_ALERT "You are screwed! "
-			"Unable to switch EFI into virtual mode "
-			"(status=%lx)\n", status);
-		panic("EFI call to SetVirtualAddressMap() failed!");
-	}
-
-	/*
-	 * Now that EFI is in virtual mode, update the function
-	 * pointers in the runtime service table to the new virtual addresses.
-	 */
-
-	efi.get_time = virt_efi_get_time;
-	efi.set_time = virt_efi_set_time;
-	efi.get_wakeup_time = virt_efi_get_wakeup_time;
-	efi.set_wakeup_time = virt_efi_set_wakeup_time;
-	efi.get_variable = virt_efi_get_variable;
-	efi.get_next_variable = virt_efi_get_next_variable;
-	efi.set_variable = virt_efi_set_variable;
-	efi.get_next_high_mono_count = virt_efi_get_next_high_mono_count;
-	efi.reset_system = virt_efi_reset_system;
-}
-
 void __init
 efi_initialize_iomem_resources(struct resource *code_resource,
 			       struct resource *data_resource,
@@ -683,35 +289,3 @@ efi_initialize_iomem_resources(struct resource *code_resource,
 		}
 	}
 }
-
-/*
- * Convenience functions to obtain memory types and attributes
- */
-
-u32 efi_mem_type(unsigned long phys_addr)
-{
-	efi_memory_desc_t *md;
-	void *p;
-
-	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
-		md = p;
-		if ((md->phys_addr <= phys_addr) && (phys_addr <
-			(md->phys_addr + (md-> num_pages << EFI_PAGE_SHIFT)) ))
-			return md->type;
-	}
-	return 0;
-}
-
-u64 efi_mem_attributes(unsigned long phys_addr)
-{
-	efi_memory_desc_t *md;
-	void *p;
-
-	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
-		md = p;
-		if ((md->phys_addr <= phys_addr) && (phys_addr <
-			(md->phys_addr + (md-> num_pages << EFI_PAGE_SHIFT)) ))
-			return md->attribute;
-	}
-	return 0;
-}
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index e9ede0fc585a..32fc87adc4a3 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -618,16 +618,9 @@ void __init setup_arch(char **cmdline_p)
 	pre_setup_arch_hook();
 	early_cpu_init();
 
-	/*
-	 * FIXME: This isn't an official loader_type right
-	 * now but does currently work with elilo.
-	 * If we were configured as an EFI kernel, check to make
-	 * sure that we were loaded correctly from elilo and that
-	 * the system table is valid.  If not, then initialize normally.
-	 */
 #ifdef CONFIG_EFI
-	if ((boot_params.hdr.type_of_loader == 0x50) &&
-	    boot_params.efi_info.efi_systab)
+	if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
+		     "EL32", 4))
 		efi_enabled = 1;
 #endif
 
diff --git a/include/asm-x86/efi.h b/include/asm-x86/efi.h
index 1459d3d58653..6d54502755aa 100644
--- a/include/asm-x86/efi.h
+++ b/include/asm-x86/efi.h
@@ -2,6 +2,48 @@
 #define _ASM_X86_EFI_H
 
 #ifdef CONFIG_X86_32
+
+extern unsigned long asmlinkage efi_call_phys(void *, ...);
+
+#define efi_call_phys0(f)		efi_call_phys(f)
+#define efi_call_phys1(f, a1)		efi_call_phys(f, a1)
+#define efi_call_phys2(f, a1, a2)	efi_call_phys(f, a1, a2)
+#define efi_call_phys3(f, a1, a2, a3)	efi_call_phys(f, a1, a2, a3)
+#define efi_call_phys4(f, a1, a2, a3, a4)	\
+	efi_call_phys(f, a1, a2, a3, a4)
+#define efi_call_phys5(f, a1, a2, a3, a4, a5)	\
+	efi_call_phys(f, a1, a2, a3, a4, a5)
+#define efi_call_phys6(f, a1, a2, a3, a4, a5, a6)	\
+	efi_call_phys(f, a1, a2, a3, a4, a5, a6)
+/*
+ * Wrap all the virtual calls in a way that forces the parameters on the stack.
+ */
+
+#define efi_call_virt(f, args...) \
+     ((efi_##f##_t __attribute__((regparm(0)))*)efi.systab->runtime->f)(args)
+
+#define efi_call_virt0(f)		efi_call_virt(f)
+#define efi_call_virt1(f, a1)		efi_call_virt(f, a1)
+#define efi_call_virt2(f, a1, a2)	efi_call_virt(f, a1, a2)
+#define efi_call_virt3(f, a1, a2, a3)	efi_call_virt(f, a1, a2, a3)
+#define efi_call_virt4(f, a1, a2, a3, a4)	\
+	efi_call_virt(f, a1, a2, a3, a4)
+#define efi_call_virt5(f, a1, a2, a3, a4, a5)	\
+	efi_call_virt(f, a1, a2, a3, a4, a5)
+#define efi_call_virt6(f, a1, a2, a3, a4, a5, a6)	\
+	efi_call_virt(f, a1, a2, a3, a4, a5, a6)
+/*
+ * We require an early boot_ioremap mapping mechanism initially
+ */
+extern void *boot_ioremap(unsigned long, unsigned long);
+
+#define efi_early_ioremap(addr, size)		boot_ioremap(addr, size)
+#define efi_early_iounmap(vaddr, size)
+
+#define efi_ioremap(addr, size)			ioremap(addr, size)
+
+#define end_pfn_map				max_low_pfn
+
 #else /* !CONFIG_X86_32 */
 
 #define MAX_EFI_IO_PAGES	100
-- 
cgit v1.2.3-59-g8ed1b


From 2215e69d2cf5024647f9a034807990590d25dd4e Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:31:19 +0100
Subject: x86 boot: use E820 memory map on EFI 32 platform

Because the EFI memory map are converted to e820 memory map in bootloader, the
EFI memory map handling code is removed to clean up.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/e820_32.c  | 117 +++--------------------------------
 arch/x86/kernel/efi_32.c   | 150 ---------------------------------------------
 arch/x86/kernel/setup_32.c |  16 ++---
 arch/x86/mm/init_32.c      |  18 ------
 include/asm-x86/e820_32.h  |   2 +-
 5 files changed, 16 insertions(+), 287 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/e820_32.c b/arch/x86/kernel/e820_32.c
index 56335a85a15a..931934a7b353 100644
--- a/arch/x86/kernel/e820_32.c
+++ b/arch/x86/kernel/e820_32.c
@@ -7,7 +7,6 @@
 #include <linux/kexec.h>
 #include <linux/module.h>
 #include <linux/mm.h>
-#include <linux/efi.h>
 #include <linux/pfn.h>
 #include <linux/uaccess.h>
 #include <linux/suspend.h>
@@ -181,7 +180,7 @@ static void __init probe_roms(void)
  * Request address space for all standard RAM and ROM resources
  * and also for regions reported as reserved by the e820.
  */
-void __init legacy_init_iomem_resources(struct resource *code_resource,
+void __init init_iomem_resources(struct resource *code_resource,
 		struct resource *data_resource,
 		struct resource *bss_resource)
 {
@@ -261,19 +260,17 @@ void __init add_memory_region(unsigned long long start,
 {
 	int x;
 
-	if (!efi_enabled) {
-       		x = e820.nr_map;
+	x = e820.nr_map;
 
-		if (x == E820MAX) {
-		    printk(KERN_ERR "Ooops! Too many entries in the memory map!\n");
-		    return;
-		}
-
-		e820.map[x].addr = start;
-		e820.map[x].size = size;
-		e820.map[x].type = type;
-		e820.nr_map++;
+	if (x == E820MAX) {
+		printk(KERN_ERR "Ooops! Too many entries in the memory map!\n");
+		return;
 	}
+
+	e820.map[x].addr = start;
+	e820.map[x].size = size;
+	e820.map[x].type = type;
+	e820.nr_map++;
 } /* add_memory_region */
 
 /*
@@ -488,29 +485,6 @@ int __init copy_e820_map(struct e820entry * biosmap, int nr_map)
 	return 0;
 }
 
-/*
- * Callback for efi_memory_walk.
- */
-static int __init
-efi_find_max_pfn(unsigned long start, unsigned long end, void *arg)
-{
-	unsigned long *max_pfn = arg, pfn;
-
-	if (start < end) {
-		pfn = PFN_UP(end -1);
-		if (pfn > *max_pfn)
-			*max_pfn = pfn;
-	}
-	return 0;
-}
-
-static int __init
-efi_memory_present_wrapper(unsigned long start, unsigned long end, void *arg)
-{
-	memory_present(0, PFN_UP(start), PFN_DOWN(end));
-	return 0;
-}
-
 /*
  * Find the highest page frame number we have available
  */
@@ -519,11 +493,6 @@ void __init find_max_pfn(void)
 	int i;
 
 	max_pfn = 0;
-	if (efi_enabled) {
-		efi_memmap_walk(efi_find_max_pfn, &max_pfn);
-		efi_memmap_walk(efi_memory_present_wrapper, NULL);
-		return;
-	}
 
 	for (i = 0; i < e820.nr_map; i++) {
 		unsigned long start, end;
@@ -540,24 +509,6 @@ void __init find_max_pfn(void)
 	}
 }
 
-/*
- * Free all available memory for boot time allocation.  Used
- * as a callback function by efi_memory_walk()
- */
-
-static int __init
-free_available_memory(unsigned long start, unsigned long end, void *arg)
-{
-	/* check max_low_pfn */
-	if (start >= (max_low_pfn << PAGE_SHIFT))
-		return 0;
-	if (end >= (max_low_pfn << PAGE_SHIFT))
-		end = max_low_pfn << PAGE_SHIFT;
-	if (start < end)
-		free_bootmem(start, end - start);
-
-	return 0;
-}
 /*
  * Register fully available low RAM pages with the bootmem allocator.
  */
@@ -565,10 +516,6 @@ void __init register_bootmem_low_pages(unsigned long max_low_pfn)
 {
 	int i;
 
-	if (efi_enabled) {
-		efi_memmap_walk(free_available_memory, NULL);
-		return;
-	}
 	for (i = 0; i < e820.nr_map; i++) {
 		unsigned long curr_pfn, last_pfn, size;
 		/*
@@ -676,56 +623,12 @@ void __init print_memory_map(char *who)
 	}
 }
 
-static __init __always_inline void efi_limit_regions(unsigned long long size)
-{
-	unsigned long long current_addr = 0;
-	efi_memory_desc_t *md, *next_md;
-	void *p, *p1;
-	int i, j;
-
-	j = 0;
-	p1 = memmap.map;
-	for (p = p1, i = 0; p < memmap.map_end; p += memmap.desc_size, i++) {
-		md = p;
-		next_md = p1;
-		current_addr = md->phys_addr +
-			PFN_PHYS(md->num_pages);
-		if (is_available_memory(md)) {
-			if (md->phys_addr >= size) continue;
-			memcpy(next_md, md, memmap.desc_size);
-			if (current_addr >= size) {
-				next_md->num_pages -=
-					PFN_UP(current_addr-size);
-			}
-			p1 += memmap.desc_size;
-			next_md = p1;
-			j++;
-		} else if ((md->attribute & EFI_MEMORY_RUNTIME) ==
-			   EFI_MEMORY_RUNTIME) {
-			/* In order to make runtime services
-			 * available we have to include runtime
-			 * memory regions in memory map */
-			memcpy(next_md, md, memmap.desc_size);
-			p1 += memmap.desc_size;
-			next_md = p1;
-			j++;
-		}
-	}
-	memmap.nr_map = j;
-	memmap.map_end = memmap.map +
-		(memmap.nr_map * memmap.desc_size);
-}
-
 void __init limit_regions(unsigned long long size)
 {
 	unsigned long long current_addr;
 	int i;
 
 	print_memory_map("limit_regions start");
-	if (efi_enabled) {
-		efi_limit_regions(size);
-		return;
-	}
 	for (i = 0; i < e820.nr_map; i++) {
 		current_addr = e820.map[i].addr + e820.map[i].size;
 		if (current_addr < size)
diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c
index 1df13725e519..30f937116288 100644
--- a/arch/x86/kernel/efi_32.c
+++ b/arch/x86/kernel/efi_32.c
@@ -125,22 +125,6 @@ void efi_call_phys_epilog(void) __releases(efi_rt_lock)
 	spin_unlock(&efi_rt_lock);
 }
 
-int is_available_memory(efi_memory_desc_t * md)
-{
-	if (!(md->attribute & EFI_MEMORY_WB))
-		return 0;
-
-	switch (md->type) {
-		case EFI_LOADER_CODE:
-		case EFI_LOADER_DATA:
-		case EFI_BOOT_SERVICES_CODE:
-		case EFI_BOOT_SERVICES_DATA:
-		case EFI_CONVENTIONAL_MEMORY:
-			return 1;
-	}
-	return 0;
-}
-
 /*
  * We need to map the EFI memory map again after paging_init().
  */
@@ -155,137 +139,3 @@ void __init efi_map_memmap(void)
 
 	memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size);
 }
-
-/*
- * Walks the EFI memory map and calls CALLBACK once for each EFI
- * memory descriptor that has memory that is available for kernel use.
- */
-void efi_memmap_walk(efi_freemem_callback_t callback, void *arg)
-{
-	int prev_valid = 0;
-	struct range {
-		unsigned long start;
-		unsigned long end;
-	} uninitialized_var(prev), curr;
-	efi_memory_desc_t *md;
-	unsigned long start, end;
-	void *p;
-
-	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
-		md = p;
-
-		if ((md->num_pages == 0) || (!is_available_memory(md)))
-			continue;
-
-		curr.start = md->phys_addr;
-		curr.end = curr.start + (md->num_pages << EFI_PAGE_SHIFT);
-
-		if (!prev_valid) {
-			prev = curr;
-			prev_valid = 1;
-		} else {
-			if (curr.start < prev.start)
-				printk(KERN_INFO PFX "Unordered memory map\n");
-			if (prev.end == curr.start)
-				prev.end = curr.end;
-			else {
-				start =
-				    (unsigned long) (PAGE_ALIGN(prev.start));
-				end = (unsigned long) (prev.end & PAGE_MASK);
-				if ((end > start)
-				    && (*callback) (start, end, arg) < 0)
-					return;
-				prev = curr;
-			}
-		}
-	}
-	if (prev_valid) {
-		start = (unsigned long) PAGE_ALIGN(prev.start);
-		end = (unsigned long) (prev.end & PAGE_MASK);
-		if (end > start)
-			(*callback) (start, end, arg);
-	}
-}
-
-void __init
-efi_initialize_iomem_resources(struct resource *code_resource,
-			       struct resource *data_resource,
-			       struct resource *bss_resource)
-{
-	struct resource *res;
-	efi_memory_desc_t *md;
-	void *p;
-
-	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
-		md = p;
-
-		if ((md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT)) >
-		    0x100000000ULL)
-			continue;
-		res = kzalloc(sizeof(struct resource), GFP_ATOMIC);
-		switch (md->type) {
-		case EFI_RESERVED_TYPE:
-			res->name = "Reserved Memory";
-			break;
-		case EFI_LOADER_CODE:
-			res->name = "Loader Code";
-			break;
-		case EFI_LOADER_DATA:
-			res->name = "Loader Data";
-			break;
-		case EFI_BOOT_SERVICES_DATA:
-			res->name = "BootServices Data";
-			break;
-		case EFI_BOOT_SERVICES_CODE:
-			res->name = "BootServices Code";
-			break;
-		case EFI_RUNTIME_SERVICES_CODE:
-			res->name = "Runtime Service Code";
-			break;
-		case EFI_RUNTIME_SERVICES_DATA:
-			res->name = "Runtime Service Data";
-			break;
-		case EFI_CONVENTIONAL_MEMORY:
-			res->name = "Conventional Memory";
-			break;
-		case EFI_UNUSABLE_MEMORY:
-			res->name = "Unusable Memory";
-			break;
-		case EFI_ACPI_RECLAIM_MEMORY:
-			res->name = "ACPI Reclaim";
-			break;
-		case EFI_ACPI_MEMORY_NVS:
-			res->name = "ACPI NVS";
-			break;
-		case EFI_MEMORY_MAPPED_IO:
-			res->name = "Memory Mapped IO";
-			break;
-		case EFI_MEMORY_MAPPED_IO_PORT_SPACE:
-			res->name = "Memory Mapped IO Port Space";
-			break;
-		default:
-			res->name = "Reserved";
-			break;
-		}
-		res->start = md->phys_addr;
-		res->end = res->start + ((md->num_pages << EFI_PAGE_SHIFT) - 1);
-		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
-		if (request_resource(&iomem_resource, res) < 0)
-			printk(KERN_ERR PFX "Failed to allocate res %s : "
-				"0x%llx-0x%llx\n", res->name,
-				(unsigned long long)res->start,
-				(unsigned long long)res->end);
-		/*
-		 * We don't know which region contains kernel data so we try
-		 * it repeatedly and let the resource manager test it.
-		 */
-		if (md->type == EFI_CONVENTIONAL_MEMORY) {
-			request_resource(res, code_resource);
-			request_resource(res, data_resource);
-			request_resource(res, bss_resource);
-#ifdef CONFIG_KEXEC
-			request_resource(res, &crashk_res);
-#endif
-		}
-	}
-}
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 32fc87adc4a3..2e805da337a2 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -644,12 +644,12 @@ void __init setup_arch(char **cmdline_p)
 	rd_doload = ((boot_params.hdr.ram_size & RAMDISK_LOAD_FLAG) != 0);
 #endif
 	ARCH_SETUP
+
+	printk(KERN_INFO "BIOS-provided physical RAM map:\n");
+	print_memory_map(memory_setup());
+
 	if (efi_enabled)
 		efi_init();
-	else {
-		printk(KERN_INFO "BIOS-provided physical RAM map:\n");
-		print_memory_map(memory_setup());
-	}
 
 	copy_edd();
 
@@ -769,14 +769,8 @@ static int __init request_standard_resources(void)
 	int i;
 
 	printk(KERN_INFO "Setting up standard PCI resources\n");
-	if (efi_enabled)
-		efi_initialize_iomem_resources(&code_resource,
-				&data_resource, &bss_resource);
-	else
-		legacy_init_iomem_resources(&code_resource,
-				&data_resource, &bss_resource);
+	init_iomem_resources(&code_resource, &data_resource, &bss_resource);
 
-	/* EFI systems may still have VGA */
 	request_resource(&iomem_resource, &video_ram_resource);
 
 	/* request I/O space for devices used on all i[345]86 PCs */
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index e6e34c7dcabf..29130970c193 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -27,7 +27,6 @@
 #include <linux/bootmem.h>
 #include <linux/slab.h>
 #include <linux/proc_fs.h>
-#include <linux/efi.h>
 #include <linux/memory_hotplug.h>
 #include <linux/initrd.h>
 #include <linux/cpumask.h>
@@ -216,23 +215,6 @@ int page_is_ram(unsigned long pagenr)
 	int i;
 	unsigned long addr, end;
 
-	if (efi_enabled) {
-		efi_memory_desc_t *md;
-		void *p;
-
-		for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
-			md = p;
-			if (!is_available_memory(md))
-				continue;
-			addr = (md->phys_addr+PAGE_SIZE-1) >> PAGE_SHIFT;
-			end = (md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT)) >> PAGE_SHIFT;
-
-			if ((pagenr >= addr) && (pagenr < end))
-				return 1;
-		}
-		return 0;
-	}
-
 	for (i = 0; i < e820.nr_map; i++) {
 
 		if (e820.map[i].type != E820_RAM)	/* not usable memory */
diff --git a/include/asm-x86/e820_32.h b/include/asm-x86/e820_32.h
index ae5ea19623fa..e2faf5f3a0bb 100644
--- a/include/asm-x86/e820_32.h
+++ b/include/asm-x86/e820_32.h
@@ -28,7 +28,7 @@ extern void register_bootmem_low_pages(unsigned long max_low_pfn);
 extern void e820_register_memory(void);
 extern void limit_regions(unsigned long long size);
 extern void print_memory_map(char *who);
-extern void legacy_init_iomem_resources(struct resource *code_resource,
+extern void init_iomem_resources(struct resource *code_resource,
 			    struct resource *data_resource,
 			    struct resource *bss_resource);
 
-- 
cgit v1.2.3-59-g8ed1b


From 2f4aaf53c21e644ba0f581ce62b985d767388c64 Mon Sep 17 00:00:00 2001
From: Markus Metzger <markus.t.metzger@intel.com>
Date: Wed, 30 Jan 2008 13:31:20 +0100
Subject: x86, ptrace: remove bad comment

Remove no longer correct comment.

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_64.c | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index f91521e26335..836a71adfa11 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -608,10 +608,6 @@ static inline void __switch_to_xtra(struct task_struct *prev_p,
 		memset(tss->io_bitmap, 0xff, prev->io_bitmap_max);
 	}
 
-	/*
-	 * Last branch recording recofiguration of trace hardware and
-	 * disentangling of trace data per task.
-	 */
 	if (test_tsk_thread_flag(prev_p, TIF_BTS_TRACE_TS))
 		ptrace_bts_take_timestamp(prev_p, BTS_TASK_DEPARTS);
 
-- 
cgit v1.2.3-59-g8ed1b


From 3c68904fee1459b6d51040864e15d19098eedef7 Mon Sep 17 00:00:00 2001
From: Markus Metzger <markus.t.metzger@intel.com>
Date: Wed, 30 Jan 2008 13:31:20 +0100
Subject: x86, ptrace: use jiffies for BTS timestamps

Replace sched_clock() with jiffies for BTS timestamps.

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ds.c     | 30 ++++++++++--------------------
 arch/x86/kernel/ptrace.c |  2 +-
 include/asm-x86/ds.h     |  2 +-
 3 files changed, 12 insertions(+), 22 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ds.c b/arch/x86/kernel/ds.c
index 996a7c4f5963..e7855def97c3 100644
--- a/arch/x86/kernel/ds.c
+++ b/arch/x86/kernel/ds.c
@@ -167,23 +167,13 @@ static inline void set_info_type(char *base, unsigned char value)
 {
 	(*(unsigned char *)(base + ds_cfg.info_type.offset)) = value;
 }
-/*
- * The info data might overlap with the info type on some architectures.
- * We therefore read and write the exact number of bytes.
- */
-static inline unsigned long long get_info_data(char *base)
+static inline unsigned long get_info_data(char *base)
 {
-	unsigned long long value = 0;
-	memcpy(&value,
-	       base + ds_cfg.info_data.offset,
-	       ds_cfg.info_data.size);
-	return value;
+	return *(unsigned long *)(base + ds_cfg.info_data.offset);
 }
-static inline void set_info_data(char *base, unsigned long long value)
+static inline void set_info_data(char *base, unsigned long value)
 {
-	memcpy(base + ds_cfg.info_data.offset,
-	       &value,
-	       ds_cfg.info_data.size);
+	(*(unsigned long *)(base + ds_cfg.info_data.offset)) = value;
 }
 
 
@@ -282,8 +272,8 @@ int ds_read_bts(void *ds, size_t index, struct bts_struct *out)
 
 	memset(out, 0, sizeof(*out));
 	if (get_from_ip(bts) == BTS_ESCAPE_ADDRESS) {
-		out->qualifier         = get_info_type(bts);
-		out->variant.timestamp = get_info_data(bts);
+		out->qualifier       = get_info_type(bts);
+		out->variant.jiffies = get_info_data(bts);
 	} else {
 		out->qualifier = BTS_BRANCH;
 		out->variant.lbr.from_ip = get_from_ip(bts);
@@ -319,7 +309,7 @@ int ds_write_bts(void *ds, const struct bts_struct *in)
 	case BTS_TASK_DEPARTS:
 		set_from_ip(bts, BTS_ESCAPE_ADDRESS);
 		set_info_type(bts, in->qualifier);
-		set_info_data(bts, in->variant.timestamp);
+		set_info_data(bts, in->variant.jiffies);
 		break;
 
 	default:
@@ -350,7 +340,7 @@ static const struct ds_configuration ds_cfg_netburst = {
 	.from_ip = { 0, 4 },
 	.to_ip = { 4, 4 },
 	.info_type = { 4, 1 },
-	.info_data = { 5, 7 },
+	.info_data = { 8, 4 },
 	.debugctl_mask = (1<<2)|(1<<3)
 };
 
@@ -364,7 +354,7 @@ static const struct ds_configuration ds_cfg_pentium_m = {
 	.from_ip = { 0, 4 },
 	.to_ip = { 4, 4 },
 	.info_type = { 4, 1 },
-	.info_data = { 5, 7 },
+	.info_data = { 8, 4 },
 	.debugctl_mask = (1<<6)|(1<<7)
 };
 #endif /* _i386_ */
@@ -379,7 +369,7 @@ static const struct ds_configuration ds_cfg_core2 = {
 	.from_ip = { 0, 8 },
 	.to_ip = { 8, 8 },
 	.info_type = { 8, 1 },
-	.info_data = { 9, 7 },
+	.info_data = { 16, 8 },
 	.debugctl_mask = (1<<6)|(1<<7)|(1<<9)
 };
 
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 8d0dd8b5effe..ec86abaab530 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -616,7 +616,7 @@ void ptrace_bts_take_timestamp(struct task_struct *tsk,
 {
 	struct bts_struct rec = {
 		.qualifier = qualifier,
-		.variant.timestamp = sched_clock()
+		.variant.jiffies = jiffies
 	};
 
 	if (ptrace_bts_get_buffer_size(tsk) <= 0)
diff --git a/include/asm-x86/ds.h b/include/asm-x86/ds.h
index edd8467740a6..c9e15381dc7f 100644
--- a/include/asm-x86/ds.h
+++ b/include/asm-x86/ds.h
@@ -48,7 +48,7 @@ struct bts_struct {
 		} lbr;
 		/* BTS_TASK_ARRIVES or
 		   BTS_TASK_DEPARTS */
-		unsigned long long timestamp;
+		unsigned long jiffies;
 	} variant;
 };
 
-- 
cgit v1.2.3-59-g8ed1b


From e4811f2568c55e595a7bf15a3b9aba863b31fb94 Mon Sep 17 00:00:00 2001
From: Markus Metzger <markus.t.metzger@intel.com>
Date: Wed, 30 Jan 2008 13:31:20 +0100
Subject: x86, ptrace: change BTS GET ptrace interface

Change the ptrace interface to mimick an array from newst to oldest.

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c     | 30 ++++++++++++++++--------------
 include/asm-x86/ptrace-abi.h | 17 ++++++-----------
 2 files changed, 22 insertions(+), 25 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index ec86abaab530..3e78c124e2d2 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -479,26 +479,33 @@ static int ptrace_bts_get_buffer_size(struct task_struct *child)
 	return ds_get_bts_size((void *)child->thread.ds_area_msr);
 }
 
-static int ptrace_bts_get_index(struct task_struct *child)
-{
-	if (!child->thread.ds_area_msr)
-		return -ENXIO;
-
-	return ds_get_bts_index((void *)child->thread.ds_area_msr);
-}
-
 static int ptrace_bts_read_record(struct task_struct *child,
 				  long index,
 				  struct bts_struct __user *out)
 {
 	struct bts_struct ret;
 	int retval;
+	int bts_size;
+	int bts_index;
 
 	if (!child->thread.ds_area_msr)
 		return -ENXIO;
 
+	if (index < 0)
+		return -EINVAL;
+
+	bts_size = ds_get_bts_size((void *)child->thread.ds_area_msr);
+	if (bts_size <= index)
+		return -EINVAL;
+
+	/* translate the ptrace bts index into the ds bts index */
+	bts_index = ds_get_bts_index((void *)child->thread.ds_area_msr);
+	bts_index -= (index + 1);
+	if (bts_index < 0)
+		bts_index += bts_size;
+
 	retval = ds_read_bts((void *)child->thread.ds_area_msr,
-			     index, &ret);
+			     bts_index, &ret);
 	if (retval)
 		return retval;
 
@@ -813,10 +820,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		ret = ptrace_bts_get_buffer_size(child);
 		break;
 
-	case PTRACE_BTS_GET_INDEX:
-		ret = ptrace_bts_get_index(child);
-		break;
-
 	case PTRACE_BTS_READ_RECORD:
 		ret = ptrace_bts_read_record
 			(child, data,
@@ -1017,7 +1020,6 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 	case PTRACE_BTS_MAX_BUFFER_SIZE:
 	case PTRACE_BTS_ALLOCATE_BUFFER:
 	case PTRACE_BTS_GET_BUFFER_SIZE:
-	case PTRACE_BTS_GET_INDEX:
 	case PTRACE_BTS_READ_RECORD:
 	case PTRACE_BTS_CONFIG:
 	case PTRACE_BTS_STATUS:
diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h
index 6fadc5214e14..b473ad45e9ca 100644
--- a/include/asm-x86/ptrace-abi.h
+++ b/include/asm-x86/ptrace-abi.h
@@ -99,32 +99,27 @@
    ENXIO........no buffer allocated */
 #define PTRACE_BTS_GET_BUFFER_SIZE 42
 
-/* Return the index of the next bts record to be written,
-   if successful; -1, otherwise.
-   EOPNOTSUPP...processor does not support bts tracing
-   ENXIO........no buffer allocated
-   After the first warp-around, this is the start of the circular bts buffer. */
-#define PTRACE_BTS_GET_INDEX 43
-
-/* Read the DATA'th bts record into a ptrace_bts_record buffer provided in ADDR.
+/* Read the DATA'th bts record into a ptrace_bts_record buffer
+   provided in ADDR.
+   Records are ordered from newest to oldest.
    Return 0, if successful; -1, otherwise
    EOPNOTSUPP...processor does not support bts tracing
    ENXIO........no buffer allocated
    EINVAL.......invalid index */
-#define PTRACE_BTS_READ_RECORD 44
+#define PTRACE_BTS_READ_RECORD 43
 
 /* Configure last branch trace; the configuration is given as a bit-mask of
    PTRACE_BTS_O_* options in DATA; parameter ADDR is ignored.
    Return 0, if successful; -1, otherwise
    EOPNOTSUPP...processor does not support bts tracing
    ENXIO........no buffer allocated */
-#define PTRACE_BTS_CONFIG 45
+#define PTRACE_BTS_CONFIG 44
 
 /* Return the configuration as bit-mask of PTRACE_BTS_O_* options
    if successful; -1, otherwise.
    EOPNOTSUPP...processor does not support bts tracing
    ENXIO........no buffer allocated */
-#define PTRACE_BTS_STATUS 46
+#define PTRACE_BTS_STATUS 45
 
 /* Trace configuration options */
 /* Collect last branch trace */
-- 
cgit v1.2.3-59-g8ed1b


From a95d67f87e1a5f1b4429be3ba3bf7b4051657908 Mon Sep 17 00:00:00 2001
From: Markus Metzger <markus.t.metzger@intel.com>
Date: Wed, 30 Jan 2008 13:31:20 +0100
Subject: x86, ptrace: new ptrace BTS API

Here's the new ptrace BTS API that supports two different overflow handling mechanisms (wrap-around and buffer-full-signal) to support two different use cases (debugging and profiling).

It further combines buffer allocation and configuration.

Opens:
- memory rlimit
- overflow signal

What would be the right signal to use?

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ds.c         |  56 ++++++++++-
 arch/x86/kernel/ptrace.c     | 221 +++++++++++++++++++++++++------------------
 include/asm-x86/ds.h         |   7 ++
 include/asm-x86/ptrace-abi.h |  94 +++++++++---------
 include/asm-x86/ptrace.h     |   1 +
 5 files changed, 237 insertions(+), 142 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ds.c b/arch/x86/kernel/ds.c
index e7855def97c3..6eb5d49a36bb 100644
--- a/arch/x86/kernel/ds.c
+++ b/arch/x86/kernel/ds.c
@@ -177,18 +177,20 @@ static inline void set_info_data(char *base, unsigned long value)
 }
 
 
-int ds_allocate(void **dsp, size_t bts_size_in_records)
+int ds_allocate(void **dsp, size_t bts_size_in_bytes)
 {
-	size_t bts_size_in_bytes = 0;
-	void *bts = 0;
-	void *ds = 0;
+	size_t bts_size_in_records;
+	void *bts;
+	void *ds;
 
 	if (!ds_cfg.sizeof_ds || !ds_cfg.sizeof_bts)
 		return -EOPNOTSUPP;
 
-	if (bts_size_in_records < 0)
+	if (bts_size_in_bytes < 0)
 		return -EINVAL;
 
+	bts_size_in_records =
+		bts_size_in_bytes / ds_cfg.sizeof_bts;
 	bts_size_in_bytes =
 		bts_size_in_records * ds_cfg.sizeof_bts;
 
@@ -233,9 +235,21 @@ int ds_get_bts_size(void *ds)
 	if (!ds_cfg.sizeof_ds || !ds_cfg.sizeof_bts)
 		return -EOPNOTSUPP;
 
+	if (!ds)
+		return 0;
+
 	size_in_bytes =
 		get_bts_absolute_maximum(ds) -
 		get_bts_buffer_base(ds);
+	return size_in_bytes;
+}
+
+int ds_get_bts_end(void *ds)
+{
+	size_t size_in_bytes = ds_get_bts_size(ds);
+
+	if (size_in_bytes <= 0)
+		return size_in_bytes;
 
 	return size_in_bytes / ds_cfg.sizeof_bts;
 }
@@ -254,6 +268,38 @@ int ds_get_bts_index(void *ds)
 	return index_offset_in_bytes / ds_cfg.sizeof_bts;
 }
 
+int ds_set_overflow(void *ds, int method)
+{
+	switch (method) {
+	case DS_O_SIGNAL:
+		return -EOPNOTSUPP;
+	case DS_O_WRAP:
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
+int ds_get_overflow(void *ds)
+{
+	return DS_O_WRAP;
+}
+
+int ds_clear(void *ds)
+{
+	int bts_size = ds_get_bts_size(ds);
+	void *bts_base;
+
+	if (bts_size <= 0)
+		return bts_size;
+
+	bts_base = get_bts_buffer_base(ds);
+	memset(bts_base, 0, bts_size);
+
+	set_bts_index(ds, bts_base);
+	return 0;
+}
+
 int ds_read_bts(void *ds, size_t index, struct bts_struct *out)
 {
 	void *bts;
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 3e78c124e2d2..18972a305890 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -32,12 +32,6 @@
 #include <asm/ds.h>
 
 
-/*
- * The maximal size of a BTS buffer per traced task in number of BTS
- * records.
- */
-#define PTRACE_BTS_BUFFER_MAX 4000
-
 /*
  * does not yet catch signals sent when the child dies.
  * in exit.c or in signal.c.
@@ -466,17 +460,12 @@ static int ptrace_set_debugreg(struct task_struct *child,
 	return 0;
 }
 
-static int ptrace_bts_max_buffer_size(void)
-{
-	return PTRACE_BTS_BUFFER_MAX;
-}
-
-static int ptrace_bts_get_buffer_size(struct task_struct *child)
+static int ptrace_bts_get_size(struct task_struct *child)
 {
 	if (!child->thread.ds_area_msr)
 		return -ENXIO;
 
-	return ds_get_bts_size((void *)child->thread.ds_area_msr);
+	return ds_get_bts_index((void *)child->thread.ds_area_msr);
 }
 
 static int ptrace_bts_read_record(struct task_struct *child,
@@ -485,7 +474,7 @@ static int ptrace_bts_read_record(struct task_struct *child,
 {
 	struct bts_struct ret;
 	int retval;
-	int bts_size;
+	int bts_end;
 	int bts_index;
 
 	if (!child->thread.ds_area_msr)
@@ -494,15 +483,15 @@ static int ptrace_bts_read_record(struct task_struct *child,
 	if (index < 0)
 		return -EINVAL;
 
-	bts_size = ds_get_bts_size((void *)child->thread.ds_area_msr);
-	if (bts_size <= index)
+	bts_end = ds_get_bts_end((void *)child->thread.ds_area_msr);
+	if (bts_end <= index)
 		return -EINVAL;
 
 	/* translate the ptrace bts index into the ds bts index */
 	bts_index = ds_get_bts_index((void *)child->thread.ds_area_msr);
 	bts_index -= (index + 1);
 	if (bts_index < 0)
-		bts_index += bts_size;
+		bts_index += bts_end;
 
 	retval = ds_read_bts((void *)child->thread.ds_area_msr,
 			     bts_index, &ret);
@@ -530,19 +519,97 @@ static int ptrace_bts_write_record(struct task_struct *child,
 	return sizeof(*in);
 }
 
-static int ptrace_bts_config(struct task_struct *child,
-			     unsigned long options)
+static int ptrace_bts_clear(struct task_struct *child)
 {
-	unsigned long debugctl_mask = ds_debugctl_mask();
-	int retval;
+	if (!child->thread.ds_area_msr)
+		return -ENXIO;
 
-	retval = ptrace_bts_get_buffer_size(child);
-	if (retval < 0)
-		return retval;
-	if (retval == 0)
+	return ds_clear((void *)child->thread.ds_area_msr);
+}
+
+static int ptrace_bts_drain(struct task_struct *child,
+			    struct bts_struct __user *out)
+{
+	int end, i;
+	void *ds = (void *)child->thread.ds_area_msr;
+
+	if (!ds)
 		return -ENXIO;
 
-	if (options & PTRACE_BTS_O_TRACE_TASK) {
+	end = ds_get_bts_index(ds);
+	if (end <= 0)
+		return end;
+
+	for (i = 0; i < end; i++, out++) {
+		struct bts_struct ret;
+		int retval;
+
+		retval = ds_read_bts(ds, i, &ret);
+		if (retval < 0)
+			return retval;
+
+		if (copy_to_user(out, &ret, sizeof(ret)))
+			return -EFAULT;
+	}
+
+	ds_clear(ds);
+
+	return i;
+}
+
+static int ptrace_bts_config(struct task_struct *child,
+			     const struct ptrace_bts_config __user *ucfg)
+{
+	struct ptrace_bts_config cfg;
+	unsigned long debugctl_mask;
+	int bts_size, ret;
+	void *ds;
+
+	if (copy_from_user(&cfg, ucfg, sizeof(cfg)))
+		return -EFAULT;
+
+	bts_size = 0;
+	ds = (void *)child->thread.ds_area_msr;
+	if (ds) {
+		bts_size = ds_get_bts_size(ds);
+		if (bts_size < 0)
+			return bts_size;
+	}
+
+	if (bts_size != cfg.size) {
+		ret = ds_free((void **)&child->thread.ds_area_msr);
+		if (ret < 0)
+			return ret;
+
+		if (cfg.size > 0)
+			ret = ds_allocate((void **)&child->thread.ds_area_msr,
+					  cfg.size);
+		ds = (void *)child->thread.ds_area_msr;
+		if (ds)
+			set_tsk_thread_flag(child, TIF_DS_AREA_MSR);
+		else
+			clear_tsk_thread_flag(child, TIF_DS_AREA_MSR);
+
+		if (ret < 0)
+			return ret;
+
+		bts_size = ds_get_bts_size(ds);
+		if (bts_size <= 0)
+			return bts_size;
+	}
+
+	if (ds) {
+		if (cfg.flags & PTRACE_BTS_O_SIGNAL) {
+			ret = ds_set_overflow(ds, DS_O_SIGNAL);
+		} else {
+			ret = ds_set_overflow(ds, DS_O_WRAP);
+		}
+		if (ret < 0)
+			return ret;
+	}
+
+	debugctl_mask = ds_debugctl_mask();
+	if (ds && (cfg.flags & PTRACE_BTS_O_TRACE)) {
 		child->thread.debugctlmsr |= debugctl_mask;
 		set_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
 	} else {
@@ -555,7 +622,7 @@ static int ptrace_bts_config(struct task_struct *child,
 			clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
 	}
 
-	if (options & PTRACE_BTS_O_TIMESTAMPS)
+	if (ds && (cfg.flags & PTRACE_BTS_O_SCHED))
 		set_tsk_thread_flag(child, TIF_BTS_TRACE_TS);
 	else
 		clear_tsk_thread_flag(child, TIF_BTS_TRACE_TS);
@@ -563,59 +630,32 @@ static int ptrace_bts_config(struct task_struct *child,
 	return 0;
 }
 
-static int ptrace_bts_status(struct task_struct *child)
+static int ptrace_bts_status(struct task_struct *child,
+			     struct ptrace_bts_config __user *ucfg)
 {
-	unsigned long debugctl_mask = ds_debugctl_mask();
-	int retval, status = 0;
-
-	retval = ptrace_bts_get_buffer_size(child);
-	if (retval < 0)
-		return retval;
-	if (retval == 0)
-		return -ENXIO;
-
-	if (ptrace_bts_get_buffer_size(child) <= 0)
-		return -ENXIO;
+	void *ds = (void *)child->thread.ds_area_msr;
+	struct ptrace_bts_config cfg;
 
-	if (test_tsk_thread_flag(child, TIF_DEBUGCTLMSR) &&
-	    child->thread.debugctlmsr & debugctl_mask)
-		status |= PTRACE_BTS_O_TRACE_TASK;
-	if (test_tsk_thread_flag(child, TIF_BTS_TRACE_TS))
-		status |= PTRACE_BTS_O_TIMESTAMPS;
+	memset(&cfg, 0, sizeof(cfg));
 
-	return status;
-}
+	if (ds) {
+		cfg.size = ds_get_bts_size(ds);
 
-static int ptrace_bts_allocate_bts(struct task_struct *child,
-				   int size_in_records)
-{
-	int retval = 0;
-	void *ds;
+		if (ds_get_overflow(ds) == DS_O_SIGNAL)
+			cfg.flags |= PTRACE_BTS_O_SIGNAL;
 
-	if (size_in_records < 0)
-		return -EINVAL;
+		if (test_tsk_thread_flag(child, TIF_DEBUGCTLMSR) &&
+		    child->thread.debugctlmsr & ds_debugctl_mask())
+			cfg.flags |= PTRACE_BTS_O_TRACE;
 
-	if (size_in_records > ptrace_bts_max_buffer_size())
-		return -EINVAL;
-
-	if (size_in_records == 0) {
-		ptrace_bts_config(child, /* options = */ 0);
-	} else {
-		retval = ds_allocate(&ds, size_in_records);
-		if (retval)
-			return retval;
+		if (test_tsk_thread_flag(child, TIF_BTS_TRACE_TS))
+			cfg.flags |= PTRACE_BTS_O_SCHED;
 	}
 
-	if (child->thread.ds_area_msr)
-		ds_free((void **)&child->thread.ds_area_msr);
-
-	child->thread.ds_area_msr = (unsigned long)ds;
-	if (child->thread.ds_area_msr)
-		set_tsk_thread_flag(child, TIF_DS_AREA_MSR);
-	else
-		clear_tsk_thread_flag(child, TIF_DS_AREA_MSR);
+	if (copy_to_user(ucfg, &cfg, sizeof(cfg)))
+		return -EFAULT;
 
-	return retval;
+	return sizeof(cfg);
 }
 
 void ptrace_bts_take_timestamp(struct task_struct *tsk,
@@ -626,9 +666,6 @@ void ptrace_bts_take_timestamp(struct task_struct *tsk,
 		.variant.jiffies = jiffies
 	};
 
-	if (ptrace_bts_get_buffer_size(tsk) <= 0)
-		return;
-
 	ptrace_bts_write_record(tsk, &rec);
 }
 
@@ -808,30 +845,32 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		break;
 #endif
 
-	case PTRACE_BTS_MAX_BUFFER_SIZE:
-		ret = ptrace_bts_max_buffer_size();
+	case PTRACE_BTS_CONFIG:
+		ret = ptrace_bts_config
+			(child, (struct ptrace_bts_config __user *)addr);
 		break;
 
-	case PTRACE_BTS_ALLOCATE_BUFFER:
-		ret = ptrace_bts_allocate_bts(child, data);
+	case PTRACE_BTS_STATUS:
+		ret = ptrace_bts_status
+			(child, (struct ptrace_bts_config __user *)addr);
 		break;
 
-	case PTRACE_BTS_GET_BUFFER_SIZE:
-		ret = ptrace_bts_get_buffer_size(child);
+	case PTRACE_BTS_SIZE:
+		ret = ptrace_bts_get_size(child);
 		break;
 
-	case PTRACE_BTS_READ_RECORD:
+	case PTRACE_BTS_GET:
 		ret = ptrace_bts_read_record
-			(child, data,
-			 (struct bts_struct __user *) addr);
+			(child, data, (struct bts_struct __user *) addr);
 		break;
 
-	case PTRACE_BTS_CONFIG:
-		ret = ptrace_bts_config(child, data);
+	case PTRACE_BTS_CLEAR:
+		ret = ptrace_bts_clear(child);
 		break;
 
-	case PTRACE_BTS_STATUS:
-		ret = ptrace_bts_status(child);
+	case PTRACE_BTS_DRAIN:
+		ret = ptrace_bts_drain
+			(child, (struct bts_struct __user *) addr);
 		break;
 
 	default:
@@ -1017,12 +1056,12 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 	case PTRACE_SETOPTIONS:
 	case PTRACE_SET_THREAD_AREA:
 	case PTRACE_GET_THREAD_AREA:
-	case PTRACE_BTS_MAX_BUFFER_SIZE:
-	case PTRACE_BTS_ALLOCATE_BUFFER:
-	case PTRACE_BTS_GET_BUFFER_SIZE:
-	case PTRACE_BTS_READ_RECORD:
 	case PTRACE_BTS_CONFIG:
 	case PTRACE_BTS_STATUS:
+	case PTRACE_BTS_SIZE:
+	case PTRACE_BTS_GET:
+	case PTRACE_BTS_CLEAR:
+	case PTRACE_BTS_DRAIN:
 		return sys_ptrace(request, pid, addr, data);
 
 	default:
diff --git a/include/asm-x86/ds.h b/include/asm-x86/ds.h
index c9e15381dc7f..b84040abee68 100644
--- a/include/asm-x86/ds.h
+++ b/include/asm-x86/ds.h
@@ -52,11 +52,18 @@ struct bts_struct {
 	} variant;
 };
 
+/* Overflow handling mechanisms */
+#define DS_O_SIGNAL	1 /* send overflow signal */
+#define DS_O_WRAP	2 /* wrap around */
 
 extern int ds_allocate(void **, size_t);
 extern int ds_free(void **);
 extern int ds_get_bts_size(void *);
+extern int ds_get_bts_end(void *);
 extern int ds_get_bts_index(void *);
+extern int ds_set_overflow(void *, int);
+extern int ds_get_overflow(void *);
+extern int ds_clear(void *);
 extern int ds_read_bts(void *, size_t, struct bts_struct *);
 extern int ds_write_bts(void *, const struct bts_struct *);
 extern unsigned long ds_debugctl_mask(void);
diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h
index b473ad45e9ca..cf2fe4633ee5 100644
--- a/include/asm-x86/ptrace-abi.h
+++ b/include/asm-x86/ptrace-abi.h
@@ -80,51 +80,53 @@
 
 #define PTRACE_SINGLEBLOCK	33	/* resume execution until next branch */
 
-/* Return maximal BTS buffer size in number of records,
-   if successuf; -1, otherwise.
-   EOPNOTSUPP...processor does not support bts tracing */
-#define PTRACE_BTS_MAX_BUFFER_SIZE 40
-
-/* Allocate new bts buffer (free old one, if exists) of size DATA bts records;
-   parameter ADDR is ignored.
-   Return 0, if successful; -1, otherwise.
-   EOPNOTSUPP...processor does not support bts tracing
-   EINVAL.......invalid size in records
-   ENOMEM.......out of memory */
-#define PTRACE_BTS_ALLOCATE_BUFFER 41
-
-/* Return the size of the bts buffer in number of bts records,
-   if successful; -1, otherwise.
-   EOPNOTSUPP...processor does not support bts tracing
-   ENXIO........no buffer allocated */
-#define PTRACE_BTS_GET_BUFFER_SIZE 42
-
-/* Read the DATA'th bts record into a ptrace_bts_record buffer
-   provided in ADDR.
-   Records are ordered from newest to oldest.
-   Return 0, if successful; -1, otherwise
-   EOPNOTSUPP...processor does not support bts tracing
-   ENXIO........no buffer allocated
-   EINVAL.......invalid index */
-#define PTRACE_BTS_READ_RECORD 43
-
-/* Configure last branch trace; the configuration is given as a bit-mask of
-   PTRACE_BTS_O_* options in DATA; parameter ADDR is ignored.
-   Return 0, if successful; -1, otherwise
-   EOPNOTSUPP...processor does not support bts tracing
-   ENXIO........no buffer allocated */
-#define PTRACE_BTS_CONFIG 44
-
-/* Return the configuration as bit-mask of PTRACE_BTS_O_* options
-   if successful; -1, otherwise.
-   EOPNOTSUPP...processor does not support bts tracing
-   ENXIO........no buffer allocated */
-#define PTRACE_BTS_STATUS 45
-
-/* Trace configuration options */
-/* Collect last branch trace */
-#define PTRACE_BTS_O_TRACE_TASK 0x1
-/* Take timestamps when the task arrives and departs */
-#define PTRACE_BTS_O_TIMESTAMPS 0x2
+/* configuration/status structure used in PTRACE_BTS_CONFIG and
+   PTRACE_BTS_STATUS commands.
+*/
+struct ptrace_bts_config {
+	/* requested or actual size of BTS buffer in bytes */
+	unsigned long size;
+	/* bitmask of below flags */
+	unsigned long flags;
+};
+
+#define PTRACE_BTS_O_TRACE	0x1 /* branch trace */
+#define PTRACE_BTS_O_SCHED	0x2 /* scheduling events w/ jiffies */
+#define PTRACE_BTS_O_SIGNAL     0x4 /* send SIG? on buffer overflow
+				       instead of wrapping around */
+#define PTRACE_BTS_O_CUT_SIZE	0x8 /* cut requested size to max available
+				       instead of failing */
+
+#define PTRACE_BTS_CONFIG	40
+/* Configure branch trace recording.
+   DATA is ignored, ADDR points to a struct ptrace_bts_config.
+   A new buffer is allocated, iff the size changes.
+*/
+#define PTRACE_BTS_STATUS	41
+/* Return the current configuration.
+   DATA is ignored, ADDR points to a struct ptrace_bts_config
+   that will contain the result.
+*/
+#define PTRACE_BTS_SIZE		42
+/* Return the number of available BTS records.
+   DATA and ADDR are ignored.
+*/
+#define PTRACE_BTS_GET		43
+/* Get a single BTS record.
+   DATA defines the index into the BTS array, where 0 is the newest
+   entry, and higher indices refer to older entries.
+   ADDR is pointing to struct bts_struct (see asm/ds.h).
+*/
+#define PTRACE_BTS_CLEAR	44
+/* Clear the BTS buffer.
+   DATA and ADDR are ignored.
+*/
+#define PTRACE_BTS_DRAIN	45
+/* Read all available BTS records and clear the buffer.
+   DATA is ignored. ADDR points to an array of struct bts_struct of
+   suitable size.
+   BTS records are read from oldest to newest.
+   Returns number of BTS records drained.
+*/
 
 #endif
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index a9a1bab1451a..61946fe8c085 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -9,6 +9,7 @@
 
 #ifdef __KERNEL__
 
+/* the DS BTS struct is used for ptrace as well */
 #include <asm/ds.h>
 
 struct task_struct;
-- 
cgit v1.2.3-59-g8ed1b


From 95c354fe9f7d6decc08a92aa26eb233ecc2155bf Mon Sep 17 00:00:00 2001
From: Nick Piggin <npiggin@suse.de>
Date: Wed, 30 Jan 2008 13:31:20 +0100
Subject: spinlock: lockbreak cleanup

The break_lock data structure and code for spinlocks is quite nasty.
Not only does it double the size of a spinlock but it changes locking to
a potentially less optimal trylock.

Put all of that under CONFIG_GENERIC_LOCKBREAK, and introduce a
__raw_spin_is_contended that uses the lock data itself to determine whether
there are waiters on the lock, to be used if CONFIG_GENERIC_LOCKBREAK is
not set.

Rename need_lockbreak to spin_needbreak, make it use spin_is_contended to
decouple it from the spinlock implementation, and make it typesafe (rwlocks
do not have any need_lockbreak sites -- why do they even get bloated up
with that break_lock then?).

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/arm/Kconfig               |  5 +++++
 arch/ia64/Kconfig              |  5 +++++
 arch/m32r/Kconfig              |  5 +++++
 arch/mips/Kconfig              |  5 +++++
 arch/parisc/Kconfig            |  5 +++++
 arch/powerpc/Kconfig           |  5 +++++
 arch/sparc64/Kconfig           |  5 +++++
 arch/x86/Kconfig               |  4 ++++
 fs/jbd/checkpoint.c            |  3 ++-
 fs/jbd/commit.c                |  2 +-
 fs/jbd2/checkpoint.c           |  3 ++-
 fs/jbd2/commit.c               |  2 +-
 include/linux/sched.h          | 21 +++++++--------------
 include/linux/spinlock.h       |  6 ++++++
 include/linux/spinlock_types.h |  4 ++--
 include/linux/spinlock_up.h    |  2 ++
 kernel/sched.c                 | 16 ++++++----------
 kernel/spinlock.c              |  3 +--
 mm/memory.c                    |  8 +++-----
 19 files changed, 72 insertions(+), 37 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index de211ac3853e..77201d3f7479 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -91,6 +91,11 @@ config GENERIC_IRQ_PROBE
 	bool
 	default y
 
+config GENERIC_LOCKBREAK
+	bool
+	default y
+	depends on SMP && PREEMPT
+
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index bef47725d4ad..4a81b7fb191a 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -42,6 +42,11 @@ config MMU
 config SWIOTLB
        bool
 
+config GENERIC_LOCKBREAK
+	bool
+	default y
+	depends on SMP && PREEMPT
+
 config RWSEM_XCHGADD_ALGORITHM
 	bool
 	default y
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index ab9a264cb194..f7237c5f531e 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -235,6 +235,11 @@ config IRAM_SIZE
 # Define implied options from the CPU selection here
 #
 
+config GENERIC_LOCKBREAK
+	bool
+	default y
+	depends on SMP && PREEMPT
+
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	depends on M32R
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 6b0f85f02c79..4fad0a34b997 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -694,6 +694,11 @@ source "arch/mips/vr41xx/Kconfig"
 
 endmenu
 
+config GENERIC_LOCKBREAK
+	bool
+	default y
+	depends on SMP && PREEMPT
+
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index b8ef1787a191..2b649c46631c 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -19,6 +19,11 @@ config MMU
 config STACK_GROWSUP
 	def_bool y
 
+config GENERIC_LOCKBREAK
+	bool
+	default y
+	depends on SMP && PREEMPT
+
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 232c298c933f..c17a194beb0e 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -53,6 +53,11 @@ config RWSEM_XCHGADD_ALGORITHM
 	bool
 	default y
 
+config GENERIC_LOCKBREAK
+	bool
+	default y
+	depends on SMP && PREEMPT
+
 config ARCH_HAS_ILOG2_U32
 	bool
 	default y
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index 10b212a1f9f5..1e25bce0366d 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -200,6 +200,11 @@ config US2E_FREQ
 	  If in doubt, say N.
 
 # Global things across all Sun machines.
+config GENERIC_LOCKBREAK
+	bool
+	default y
+	depends on SMP && PREEMPT
+
 config RWSEM_GENERIC_SPINLOCK
 	bool
 
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 23936301db56..db434f8171d3 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -19,6 +19,10 @@ config X86_64
 config X86
 	def_bool y
 
+config GENERIC_LOCKBREAK
+	def_bool y
+	depends on SMP && PREEMPT
+
 config GENERIC_TIME
 	def_bool y
 
diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c
index 0f69c416eebc..a5432bbbfb88 100644
--- a/fs/jbd/checkpoint.c
+++ b/fs/jbd/checkpoint.c
@@ -347,7 +347,8 @@ restart:
 				break;
 			}
 			retry = __process_buffer(journal, jh, bhs,&batch_count);
-			if (!retry && lock_need_resched(&journal->j_list_lock)){
+			if (!retry && (need_resched() ||
+				spin_needbreak(&journal->j_list_lock))) {
 				spin_unlock(&journal->j_list_lock);
 				retry = 1;
 				break;
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 610264b99a8e..31853eb65b4c 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -265,7 +265,7 @@ write_out_data:
 			put_bh(bh);
 		}
 
-		if (lock_need_resched(&journal->j_list_lock)) {
+		if (need_resched() || spin_needbreak(&journal->j_list_lock)) {
 			spin_unlock(&journal->j_list_lock);
 			goto write_out_data;
 		}
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index 1b7f282c1ae9..6914598022ce 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -353,7 +353,8 @@ restart:
 			}
 			retry = __process_buffer(journal, jh, bhs, &batch_count,
 						 transaction);
-			if (!retry && lock_need_resched(&journal->j_list_lock)){
+			if (!retry && (need_resched() ||
+				spin_needbreak(&journal->j_list_lock))) {
 				spin_unlock(&journal->j_list_lock);
 				retry = 1;
 				break;
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index da8d0eb3b7b9..4f302d279279 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -341,7 +341,7 @@ write_out_data:
 			put_bh(bh);
 		}
 
-		if (lock_need_resched(&journal->j_list_lock)) {
+		if (need_resched() || spin_needbreak(&journal->j_list_lock)) {
 			spin_unlock(&journal->j_list_lock);
 			goto write_out_data;
 		}
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2d0546e884ea..9d4797609aa5 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1922,23 +1922,16 @@ extern int cond_resched_softirq(void);
 
 /*
  * Does a critical section need to be broken due to another
- * task waiting?:
+ * task waiting?: (technically does not depend on CONFIG_PREEMPT,
+ * but a general need for low latency)
  */
-#if defined(CONFIG_PREEMPT) && defined(CONFIG_SMP)
-# define need_lockbreak(lock) ((lock)->break_lock)
-#else
-# define need_lockbreak(lock) 0
-#endif
-
-/*
- * Does a critical section need to be broken due to another
- * task waiting or preemption being signalled:
- */
-static inline int lock_need_resched(spinlock_t *lock)
+static inline int spin_needbreak(spinlock_t *lock)
 {
-	if (need_lockbreak(lock) || need_resched())
-		return 1;
+#ifdef CONFIG_PREEMPT
+	return spin_is_contended(lock);
+#else
 	return 0;
+#endif
 }
 
 /*
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index c376f3b36c89..124449733c55 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -120,6 +120,12 @@ do {								\
 
 #define spin_is_locked(lock)	__raw_spin_is_locked(&(lock)->raw_lock)
 
+#ifdef CONFIG_GENERIC_LOCKBREAK
+#define spin_is_contended(lock) ((lock)->break_lock)
+#else
+#define spin_is_contended(lock)	__raw_spin_is_contended(&(lock)->raw_lock)
+#endif
+
 /**
  * spin_unlock_wait - wait until the spinlock gets unlocked
  * @lock: the spinlock in question.
diff --git a/include/linux/spinlock_types.h b/include/linux/spinlock_types.h
index f6a3a951b79e..68d88f71f1a2 100644
--- a/include/linux/spinlock_types.h
+++ b/include/linux/spinlock_types.h
@@ -19,7 +19,7 @@
 
 typedef struct {
 	raw_spinlock_t raw_lock;
-#if defined(CONFIG_PREEMPT) && defined(CONFIG_SMP)
+#ifdef CONFIG_GENERIC_LOCKBREAK
 	unsigned int break_lock;
 #endif
 #ifdef CONFIG_DEBUG_SPINLOCK
@@ -35,7 +35,7 @@ typedef struct {
 
 typedef struct {
 	raw_rwlock_t raw_lock;
-#if defined(CONFIG_PREEMPT) && defined(CONFIG_SMP)
+#ifdef CONFIG_GENERIC_LOCKBREAK
 	unsigned int break_lock;
 #endif
 #ifdef CONFIG_DEBUG_SPINLOCK
diff --git a/include/linux/spinlock_up.h b/include/linux/spinlock_up.h
index ea54c4c9a4ec..938234c4a996 100644
--- a/include/linux/spinlock_up.h
+++ b/include/linux/spinlock_up.h
@@ -64,6 +64,8 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock)
 # define __raw_spin_trylock(lock)	({ (void)(lock); 1; })
 #endif /* DEBUG_SPINLOCK */
 
+#define __raw_spin_is_contended(lock)	(((void)(lock), 0))
+
 #define __raw_read_can_lock(lock)	(((void)(lock), 1))
 #define __raw_write_can_lock(lock)	(((void)(lock), 1))
 
diff --git a/kernel/sched.c b/kernel/sched.c
index 524285e46fa7..ba4c88088f62 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4945,19 +4945,15 @@ EXPORT_SYMBOL(_cond_resched);
  */
 int cond_resched_lock(spinlock_t *lock)
 {
+	int resched = need_resched() && system_state == SYSTEM_RUNNING;
 	int ret = 0;
 
-	if (need_lockbreak(lock)) {
+	if (spin_needbreak(lock) || resched) {
 		spin_unlock(lock);
-		cpu_relax();
-		ret = 1;
-		spin_lock(lock);
-	}
-	if (need_resched() && system_state == SYSTEM_RUNNING) {
-		spin_release(&lock->dep_map, 1, _THIS_IP_);
-		_raw_spin_unlock(lock);
-		preempt_enable_no_resched();
-		__cond_resched();
+		if (resched && need_resched())
+			__cond_resched();
+		else
+			cpu_relax();
 		ret = 1;
 		spin_lock(lock);
 	}
diff --git a/kernel/spinlock.c b/kernel/spinlock.c
index cd72424c2662..ae28c8245123 100644
--- a/kernel/spinlock.c
+++ b/kernel/spinlock.c
@@ -65,8 +65,7 @@ EXPORT_SYMBOL(_write_trylock);
  * even on CONFIG_PREEMPT, because lockdep assumes that interrupts are
  * not re-enabled during lock-acquire (which the preempt-spin-ops do):
  */
-#if !defined(CONFIG_PREEMPT) || !defined(CONFIG_SMP) || \
-	defined(CONFIG_DEBUG_LOCK_ALLOC)
+#if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC)
 
 void __lockfunc _read_lock(rwlock_t *lock)
 {
diff --git a/mm/memory.c b/mm/memory.c
index 4b0144b24c12..673ebbf499c7 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -513,8 +513,7 @@ again:
 		if (progress >= 32) {
 			progress = 0;
 			if (need_resched() ||
-			    need_lockbreak(src_ptl) ||
-			    need_lockbreak(dst_ptl))
+			    spin_needbreak(src_ptl) || spin_needbreak(dst_ptl))
 				break;
 		}
 		if (pte_none(*src_pte)) {
@@ -853,7 +852,7 @@ unsigned long unmap_vmas(struct mmu_gather **tlbp,
 			tlb_finish_mmu(*tlbp, tlb_start, start);
 
 			if (need_resched() ||
-				(i_mmap_lock && need_lockbreak(i_mmap_lock))) {
+				(i_mmap_lock && spin_needbreak(i_mmap_lock))) {
 				if (i_mmap_lock) {
 					*tlbp = NULL;
 					goto out;
@@ -1768,8 +1767,7 @@ again:
 
 	restart_addr = zap_page_range(vma, start_addr,
 					end_addr - start_addr, details);
-	need_break = need_resched() ||
-			need_lockbreak(details->i_mmap_lock);
+	need_break = need_resched() || spin_needbreak(details->i_mmap_lock);
 
 	if (restart_addr >= end_addr) {
 		/* We have now completed this vma: mark it so */
-- 
cgit v1.2.3-59-g8ed1b


From 314cdbefd1fd0a7acf3780e9628465b77ea6a836 Mon Sep 17 00:00:00 2001
From: Nick Piggin <npiggin@suse.de>
Date: Wed, 30 Jan 2008 13:31:21 +0100
Subject: x86: FIFO ticket spinlocks

Introduce ticket lock spinlocks for x86 which are FIFO. The implementation
is described in the comments. The straight-line lock/unlock instruction
sequence is slightly slower than the dec based locks on modern x86 CPUs,
however the difference is quite small on Core2 and Opteron when working out of
cache, and becomes almost insignificant even on P4 when the lock misses cache.
trylock is more significantly slower, but they are relatively rare.

On an 8 core (2 socket) Opteron, spinlock unfairness is extremely noticable,
with a userspace test having a difference of up to 2x runtime per thread, and
some threads are starved or "unfairly" granted the lock up to 1 000 000 (!)
times. After this patch, all threads appear to finish at exactly the same
time.

The memory ordering of the lock does conform to x86 standards, and the
implementation has been reviewed by Intel and AMD engineers.

The algorithm also tells us how many CPUs are contending the lock, so
lockbreak becomes trivial and we no longer have to waste 4 bytes per
spinlock for it.

After this, we can no longer spin on any locks with preempt enabled
and cannot reenable interrupts when spinning on an irq safe lock, because
at that point we have already taken a ticket and the would deadlock if
the same CPU tries to take the lock again.  These are questionable anyway:
if the lock happens to be called under a preempt or interrupt disabled section,
then it will just have the same latency problems. The real fix is to keep
critical sections short, and ensure locks are reasonably fair (which this
patch does).

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/Kconfig                 |   3 +-
 include/asm-x86/paravirt.h       |  21 ------
 include/asm-x86/spinlock.h       | 153 +++++++++++++++++++++------------------
 include/asm-x86/spinlock_types.h |   2 +-
 4 files changed, 83 insertions(+), 96 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index db434f8171d3..1992b8fe6a2f 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -20,8 +20,7 @@ config X86
 	def_bool y
 
 config GENERIC_LOCKBREAK
-	def_bool y
-	depends on SMP && PREEMPT
+	def_bool n
 
 config GENERIC_TIME
 	def_bool y
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 4f23f434a1f3..24406703007f 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -1077,27 +1077,6 @@ static inline unsigned long __raw_local_irq_save(void)
 	return f;
 }
 
-#define CLI_STRING							\
-	_paravirt_alt("pushl %%ecx; pushl %%edx;"			\
-		      "call *%[paravirt_cli_opptr];"			\
-		      "popl %%edx; popl %%ecx",				\
-		      "%c[paravirt_cli_type]", "%c[paravirt_clobber]")
-
-#define STI_STRING							\
-	_paravirt_alt("pushl %%ecx; pushl %%edx;"			\
-		      "call *%[paravirt_sti_opptr];"			\
-		      "popl %%edx; popl %%ecx",				\
-		      "%c[paravirt_sti_type]", "%c[paravirt_clobber]")
-
-#define CLI_STI_CLOBBERS , "%eax"
-#define CLI_STI_INPUT_ARGS						\
-	,								\
-	[paravirt_cli_type] "i" (PARAVIRT_PATCH(pv_irq_ops.irq_disable)),		\
-	[paravirt_cli_opptr] "m" (pv_irq_ops.irq_disable),		\
-	[paravirt_sti_type] "i" (PARAVIRT_PATCH(pv_irq_ops.irq_enable)),		\
-	[paravirt_sti_opptr] "m" (pv_irq_ops.irq_enable),		\
-	paravirt_clobber(CLBR_EAX)
-
 /* Make sure as little as possible of this mess escapes. */
 #undef PARAVIRT_CALL
 #undef __PVOP_CALL
diff --git a/include/asm-x86/spinlock.h b/include/asm-x86/spinlock.h
index afd4b80ff0ad..97d52b506af8 100644
--- a/include/asm-x86/spinlock.h
+++ b/include/asm-x86/spinlock.h
@@ -5,6 +5,7 @@
 #include <asm/rwlock.h>
 #include <asm/page.h>
 #include <asm/processor.h>
+#include <linux/compiler.h>
 
 /*
  * Your basic SMP spinlocks, allowing only a single CPU anywhere
@@ -12,7 +13,8 @@
  * Simple spin lock operations.  There are two variants, one clears IRQ's
  * on the local processor, one does not.
  *
- * We make no fairness assumptions. They have a cost.
+ * These are fair FIFO ticket locks, which are currently limited to 256
+ * CPUs.
  *
  * (the type definitions are in asm/spinlock_types.h)
  */
@@ -42,103 +44,102 @@ typedef int _slock_t;
 # define LOCK_PTR_REG "D"
 #endif
 
+#if (NR_CPUS > 256)
+#error spinlock supports a maximum of 256 CPUs
+#endif
+
 static inline int __raw_spin_is_locked(raw_spinlock_t *lock)
 {
-	return *(volatile _slock_t *)(&(lock)->slock) <= 0;
+	int tmp = *(volatile signed int *)(&(lock)->slock);
+
+	return (((tmp >> 8) & 0xff) != (tmp & 0xff));
 }
 
-static inline void __raw_spin_lock(raw_spinlock_t *lock)
+static inline int __raw_spin_is_contended(raw_spinlock_t *lock)
 {
-	asm volatile(
-		"\n1:\t"
-		LOCK_PREFIX " ; " LOCK_INS_DEC " %0\n\t"
-		"jns 3f\n"
-		"2:\t"
-		"rep;nop\n\t"
-		LOCK_INS_CMP " $0,%0\n\t"
-		"jle 2b\n\t"
-		"jmp 1b\n"
-		"3:\n\t"
-		: "+m" (lock->slock) : : "memory");
+	int tmp = *(volatile signed int *)(&(lock)->slock);
+
+	return (((tmp >> 8) & 0xff) - (tmp & 0xff)) > 1;
 }
 
-/*
- * It is easier for the lock validator if interrupts are not re-enabled
- * in the middle of a lock-acquire. This is a performance feature anyway
- * so we turn it off:
- *
- * NOTE: there's an irqs-on section here, which normally would have to be
- * irq-traced, but on CONFIG_TRACE_IRQFLAGS we never use this variant.
- */
-#ifndef CONFIG_PROVE_LOCKING
-static inline void __raw_spin_lock_flags(raw_spinlock_t *lock,
-					 unsigned long flags)
+static inline void __raw_spin_lock(raw_spinlock_t *lock)
 {
-	asm volatile(
-		"\n1:\t"
-		LOCK_PREFIX " ; " LOCK_INS_DEC " %[slock]\n\t"
-		"jns 5f\n"
-		"testl $0x200, %[flags]\n\t"
-		"jz 4f\n\t"
-		STI_STRING "\n"
-		"3:\t"
-		"rep;nop\n\t"
-		LOCK_INS_CMP " $0, %[slock]\n\t"
-		"jle 3b\n\t"
-		CLI_STRING "\n\t"
+	short inc = 0x0100;
+
+	/*
+	 * Ticket locks are conceptually two bytes, one indicating the current
+	 * head of the queue, and the other indicating the current tail. The
+	 * lock is acquired by atomically noting the tail and incrementing it
+	 * by one (thus adding ourself to the queue and noting our position),
+	 * then waiting until the head becomes equal to the the initial value
+	 * of the tail.
+	 *
+	 * This uses a 16-bit xadd to increment the tail and also load the
+	 * position of the head, which takes care of memory ordering issues
+	 * and should be optimal for the uncontended case. Note the tail must
+	 * be in the high byte, otherwise the 16-bit wide increment of the low
+	 * byte would carry up and contaminate the high byte.
+	 */
+
+	__asm__ __volatile__ (
+		LOCK_PREFIX "xaddw %w0, %1\n"
+		"1:\t"
+		"cmpb %h0, %b0\n\t"
+		"je 2f\n\t"
+		"rep ; nop\n\t"
+		"movb %1, %b0\n\t"
+		/* don't need lfence here, because loads are in-order */
 		"jmp 1b\n"
-		"4:\t"
-		"rep;nop\n\t"
-		LOCK_INS_CMP " $0, %[slock]\n\t"
-		"jg 1b\n\t"
-		"jmp 4b\n"
-		"5:\n\t"
-		: [slock] "+m" (lock->slock)
-		: [flags] "r" ((u32)flags)
-		  CLI_STI_INPUT_ARGS
-		: "memory" CLI_STI_CLOBBERS);
+		"2:"
+		:"+Q" (inc), "+m" (lock->slock)
+		:
+		:"memory", "cc");
 }
-#endif
+
+#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
 
 static inline int __raw_spin_trylock(raw_spinlock_t *lock)
 {
-	_slock_t oldval;
+	int tmp;
+	short new;
 
 	asm volatile(
-		LOCK_INS_XCH " %0,%1"
-		:"=q" (oldval), "+m" (lock->slock)
-		:"0" (0) : "memory");
-
-	return oldval > 0;
+		"movw %2,%w0\n\t"
+		"cmpb %h0,%b0\n\t"
+		"jne 1f\n\t"
+		"movw %w0,%w1\n\t"
+		"incb %h1\n\t"
+		"lock ; cmpxchgw %w1,%2\n\t"
+		"1:"
+		"sete %b1\n\t"
+		"movzbl %b1,%0\n\t"
+		:"=&a" (tmp), "=Q" (new), "+m" (lock->slock)
+		:
+		: "memory", "cc");
+
+	return tmp;
 }
 
+#if defined(CONFIG_X86_32) && \
+	(defined(CONFIG_X86_OOSTORE) || defined(CONFIG_X86_PPRO_FENCE))
 /*
- * __raw_spin_unlock based on writing $1 to the low byte.
- * This method works. Despite all the confusion.
- * (except on PPro SMP or if we are using OOSTORE, so we use xchgb there)
+ * On PPro SMP or if we are using OOSTORE, we use a locked operation to unlock
  * (PPro errata 66, 92)
  */
-#if defined(X86_64) || \
-	(!defined(CONFIG_X86_OOSTORE) && !defined(CONFIG_X86_PPRO_FENCE))
-
-static inline void __raw_spin_unlock(raw_spinlock_t *lock)
-{
-	asm volatile(LOCK_INS_MOV " $1,%0" : "=m" (lock->slock) :: "memory");
-}
-
+# define UNLOCK_LOCK_PREFIX LOCK_PREFIX
 #else
+# define UNLOCK_LOCK_PREFIX
+#endif
 
 static inline void __raw_spin_unlock(raw_spinlock_t *lock)
 {
-	unsigned char oldval = 1;
-
-	asm volatile("xchgb %b0, %1"
-		     : "=q" (oldval), "+m" (lock->slock)
-		     : "0" (oldval) : "memory");
+	__asm__ __volatile__(
+		UNLOCK_LOCK_PREFIX "incb %0"
+		:"+m" (lock->slock)
+		:
+		:"memory", "cc");
 }
 
-#endif
-
 static inline void __raw_spin_unlock_wait(raw_spinlock_t *lock)
 {
 	while (__raw_spin_is_locked(lock))
@@ -159,11 +160,19 @@ static inline void __raw_spin_unlock_wait(raw_spinlock_t *lock)
  * with the high bit (sign) being the "contended" bit.
  */
 
+/**
+ * read_can_lock - would read_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
 static inline int __raw_read_can_lock(raw_rwlock_t *lock)
 {
 	return (int)(lock)->lock > 0;
 }
 
+/**
+ * write_can_lock - would write_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
 static inline int __raw_write_can_lock(raw_rwlock_t *lock)
 {
 	return (lock)->lock == RW_LOCK_BIAS;
diff --git a/include/asm-x86/spinlock_types.h b/include/asm-x86/spinlock_types.h
index 4da9345c1500..9029cf78cf5d 100644
--- a/include/asm-x86/spinlock_types.h
+++ b/include/asm-x86/spinlock_types.h
@@ -9,7 +9,7 @@ typedef struct {
 	unsigned int slock;
 } raw_spinlock_t;
 
-#define __RAW_SPIN_LOCK_UNLOCKED	{ 1 }
+#define __RAW_SPIN_LOCK_UNLOCKED	{ 0 }
 
 typedef struct {
 	unsigned int lock;
-- 
cgit v1.2.3-59-g8ed1b


From aa470140e86e45723cf8387292edbce9106ddc1f Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Wed, 30 Jan 2008 13:31:21 +0100
Subject: x86: kprobe-booster for x86-64

This patch adds kprobe-booster to kprobes_64.c.

- Changes are based on x86-32.
- Add REX prefix checking code.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Jim Keniston <jkenisto@us.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes_64.c | 142 ++++++++++++++++++++++++++++++++++++++++++-
 include/asm-x86/kprobes_64.h |  10 +++
 2 files changed, 149 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes_64.c b/arch/x86/kernel/kprobes_64.c
index f6837cd3bed5..bf0e18473677 100644
--- a/arch/x86/kernel/kprobes_64.c
+++ b/arch/x86/kernel/kprobes_64.c
@@ -55,6 +55,105 @@ struct kretprobe_blackpoint kretprobe_blacklist[] = {
 };
 const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
 
+/* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
+static __always_inline void set_jmp_op(void *from, void *to)
+{
+	struct __arch_jmp_op {
+		char op;
+		s32 raddr;
+	} __attribute__((packed)) * jop;
+	jop = (struct __arch_jmp_op *)from;
+	jop->raddr = (s32)((long)(to) - ((long)(from) + 5));
+	jop->op = RELATIVEJUMP_INSTRUCTION;
+}
+
+/*
+ * returns non-zero if opcode is boostable
+ * RIP relative instructions are adjusted at copying time
+ */
+static __always_inline int can_boost(kprobe_opcode_t *opcodes)
+{
+#define W(row, b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, ba, bb, bc, bd, be, bf)\
+	(((b0##UL << 0x0)|(b1##UL << 0x1)|(b2##UL << 0x2)|(b3##UL << 0x3) |   \
+	  (b4##UL << 0x4)|(b5##UL << 0x5)|(b6##UL << 0x6)|(b7##UL << 0x7) |   \
+	  (b8##UL << 0x8)|(b9##UL << 0x9)|(ba##UL << 0xa)|(bb##UL << 0xb) |   \
+	  (bc##UL << 0xc)|(bd##UL << 0xd)|(be##UL << 0xe)|(bf##UL << 0xf))    \
+	 << (row % 64))
+	/*
+	 * Undefined/reserved opcodes, conditional jump, Opcode Extension
+	 * Groups, and some special opcodes can not boost.
+	 */
+	static const unsigned long twobyte_is_boostable[256 / 64] = {
+		/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f        */
+		/*      ----------------------------------------------        */
+		W(0x00, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0)|/* 00 */
+		W(0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)|/* 10 */
+		W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)|/* 20 */
+		W(0x30, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),/* 30 */
+		W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1)|/* 40 */
+		W(0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)|/* 50 */
+		W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1)|/* 60 */
+		W(0x70, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1),/* 70 */
+		W(0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)|/* 80 */
+		W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1)|/* 90 */
+		W(0xa0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1)|/* a0 */
+		W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1),/* b0 */
+		W(0xc0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1)|/* c0 */
+		W(0xd0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1)|/* d0 */
+		W(0xe0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1)|/* e0 */
+		W(0xf0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0) /* f0 */
+		/*      -----------------------------------------------       */
+		/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f        */
+	};
+#undef W
+	kprobe_opcode_t opcode;
+	kprobe_opcode_t *orig_opcodes = opcodes;
+
+retry:
+	if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1)
+		return 0;
+	opcode = *(opcodes++);
+
+	/* 2nd-byte opcode */
+	if (opcode == 0x0f) {
+		if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1)
+			return 0;
+		return test_bit(*opcodes, twobyte_is_boostable);
+	}
+
+	switch (opcode & 0xf0) {
+	case 0x40:
+		goto retry; /* REX prefix is boostable */
+	case 0x60:
+		if (0x63 < opcode && opcode < 0x67)
+			goto retry; /* prefixes */
+		/* can't boost Address-size override and bound */
+		return (opcode != 0x62 && opcode != 0x67);
+	case 0x70:
+		return 0; /* can't boost conditional jump */
+	case 0xc0:
+		/* can't boost software-interruptions */
+		return (0xc1 < opcode && opcode < 0xcc) || opcode == 0xcf;
+	case 0xd0:
+		/* can boost AA* and XLAT */
+		return (opcode == 0xd4 || opcode == 0xd5 || opcode == 0xd7);
+	case 0xe0:
+		/* can boost in/out and absolute jmps */
+		return ((opcode & 0x04) || opcode == 0xea);
+	case 0xf0:
+		if ((opcode & 0x0c) == 0 && opcode != 0xf1)
+			goto retry; /* lock/rep(ne) prefix */
+		/* clear and set flags are boostable */
+		return (opcode == 0xf5 || (0xf7 < opcode && opcode < 0xfe));
+	default:
+		/* segment override prefixes are boostable */
+		if (opcode == 0x26 || opcode == 0x36 || opcode == 0x3e)
+			goto retry; /* prefixes */
+		/* CS override prefix and call are not boostable */
+		return (opcode != 0x2e && opcode != 0x9a);
+	}
+}
+
 /*
  * returns non-zero if opcode modifies the interrupt flag.
  */
@@ -86,7 +185,7 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
 
 /*
  * Determine if the instruction uses the %rip-relative addressing mode.
- * If it does, return the address of the 32-bit displacement word.
+ * If it does, Return the address of the 32-bit displacement word.
  * If not, return null.
  */
 static s32 __kprobes *is_riprel(u8 *insn)
@@ -210,6 +309,11 @@ static void __kprobes arch_copy_kprobe(struct kprobe *p)
 		BUG_ON((s64) (s32) disp != disp); /* Sanity check.  */
 		*ripdisp = disp;
 	}
+	if (can_boost(p->addr)) {
+		p->ainsn.boostable = 0;
+	} else {
+		p->ainsn.boostable = -1;
+	}
 	p->opcode = *p->addr;
 }
 
@@ -226,7 +330,7 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p)
 void __kprobes arch_remove_kprobe(struct kprobe *p)
 {
 	mutex_lock(&kprobe_mutex);
-	free_insn_slot(p->ainsn.insn, 0);
+	free_insn_slot(p->ainsn.insn, (p->ainsn.boostable == 1));
 	mutex_unlock(&kprobe_mutex);
 }
 
@@ -384,6 +488,15 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
 		return 1;
 
 ss_probe:
+#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PM)
+	if (p->ainsn.boostable == 1 && !p->post_handler) {
+		/* Boost up -- we can execute copied instructions directly */
+		reset_current_kprobe();
+		regs->ip = (unsigned long)p->ainsn.insn;
+		preempt_enable_no_resched();
+		return 1;
+	}
+#endif
 	prepare_singlestep(p, regs);
 	kcb->kprobe_status = KPROBE_HIT_SS;
 	return 1;
@@ -493,6 +606,11 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
  * 2) If the single-stepped instruction was a call, the return address
  * that is atop the stack is the address following the copied instruction.
  * We need to make it the address following the original instruction.
+ *
+ * If this is the first time we've single-stepped the instruction at
+ * this probepoint, and the instruction is boostable, boost it: add a
+ * jump instruction after the copied instruction, that jumps to the next
+ * instruction after the probepoint.
  */
 static void __kprobes resume_execution(struct kprobe *p,
 		struct pt_regs *regs, struct kprobe_ctlblk *kcb)
@@ -519,6 +637,7 @@ static void __kprobes resume_execution(struct kprobe *p,
 	case 0xcf:
 	case 0xea:	/* jmp absolute -- ip is correct */
 		/* ip is already adjusted, no more changes required */
+		p->ainsn.boostable = 1;
 		goto no_change;
 	case 0xe8:	/* call relative - Fix return addr */
 		*tos = orig_rip + (*tos - copy_rip);
@@ -527,17 +646,34 @@ static void __kprobes resume_execution(struct kprobe *p,
 		if ((insn[1] & 0x30) == 0x10) {
 			/* call absolute, indirect */
 			/* Fix return addr; ip is correct. */
+			/* not boostable */
 			*tos = orig_rip + (*tos - copy_rip);
 			goto no_change;
 		} else if (((insn[1] & 0x31) == 0x20) ||	/* jmp near, absolute indirect */
 			   ((insn[1] & 0x31) == 0x21)) {	/* jmp far, absolute indirect */
-			/* ip is correct. */
+			/* ip is correct. And this is boostable */
+			p->ainsn.boostable = 1;
 			goto no_change;
 		}
 	default:
 		break;
 	}
 
+	if (p->ainsn.boostable == 0) {
+		if ((regs->ip > copy_rip) &&
+		    (regs->ip - copy_rip) + 5 < MAX_INSN_SIZE) {
+			/*
+			 * These instructions can be executed directly if it
+			 * jumps back to correct address.
+			 */
+			set_jmp_op((void *)regs->ip,
+				   (void *)orig_rip + (regs->ip - copy_rip));
+			p->ainsn.boostable = 1;
+		} else {
+			p->ainsn.boostable = -1;
+		}
+	}
+
 	regs->ip = orig_rip + (regs->ip - copy_rip);
 
 no_change:
diff --git a/include/asm-x86/kprobes_64.h b/include/asm-x86/kprobes_64.h
index 8c919d35cdd3..e7e921dac7c2 100644
--- a/include/asm-x86/kprobes_64.h
+++ b/include/asm-x86/kprobes_64.h
@@ -34,6 +34,7 @@ struct kprobe;
 
 typedef u8 kprobe_opcode_t;
 #define BREAKPOINT_INSTRUCTION	0xcc
+#define RELATIVEJUMP_INSTRUCTION 0xe9
 #define MAX_INSN_SIZE 15
 #define MAX_STACK_SIZE 64
 #define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \
@@ -52,6 +53,15 @@ extern void arch_remove_kprobe(struct kprobe *p);
 struct arch_specific_insn {
 	/* copy of the original instruction */
 	kprobe_opcode_t *insn;
+	/*
+	 * boostable = -1: This instruction type is not boostable.
+	 * boostable = 0: This instruction type is boostable.
+	 * boostable = 1: This instruction has been boosted: we have
+	 * added a relative jump after the instruction copy in insn,
+	 * so no single-step and fixup are needed (unless there's
+	 * a post_handler or break_handler).
+	 */
+	int boostable;
 };
 
 struct prev_kprobe {
-- 
cgit v1.2.3-59-g8ed1b


From da07ab0375897bb9e108b28129df140ecd3ee94e Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Wed, 30 Jan 2008 13:31:21 +0100
Subject: x86: return probe-booster for x86-64

This patch adds kretprobe-booster to kprobes_64.c.

- Changes are based on x86-32.
- Rewrite register saving/restoring code

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes_64.c | 92 +++++++++++++++++++++++++++++++-------------
 1 file changed, 65 insertions(+), 27 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes_64.c b/arch/x86/kernel/kprobes_64.c
index bf0e18473677..bc93b1dd9a01 100644
--- a/arch/x86/kernel/kprobes_64.c
+++ b/arch/x86/kernel/kprobes_64.c
@@ -28,6 +28,8 @@
  *		Fixed to handle %rip-relative addressing mode correctly.
  * 2005-May     Rusty Lynch <rusty.lynch@intel.com>
  *              Added function return probes functionality
+ * 2007-Dec	Masami Hiramatsu <mhiramat@redhat.com> added kprobe-booster
+ * 		and kretprobe-booster for x86-64
  */
 
 #include <linux/kprobes.h>
@@ -507,21 +509,65 @@ no_kprobe:
 }
 
 /*
- * For function-return probes, init_kprobes() establishes a probepoint
- * here. When a retprobed function returns, this probe is hit and
- * trampoline_probe_handler() runs, calling the kretprobe's handler.
+ * When a retprobed function returns, this code saves registers and
+ * calls trampoline_handler() runs, which calls the kretprobe's handler.
  */
- void kretprobe_trampoline_holder(void)
+ void __kprobes kretprobe_trampoline_holder(void)
  {
  	asm volatile (  ".global kretprobe_trampoline\n"
- 			"kretprobe_trampoline: \n"
- 			"nop\n");
+			"kretprobe_trampoline: \n"
+			/* We don't bother saving the ss register */
+			"	pushq %rsp\n"
+			"	pushfq\n"
+			/*
+			 * Skip cs, ip, orig_ax.
+			 * trampoline_handler() will plug in these values
+			 */
+			"	subq $24, %rsp\n"
+			"	pushq %rdi\n"
+			"	pushq %rsi\n"
+			"	pushq %rdx\n"
+			"	pushq %rcx\n"
+			"	pushq %rax\n"
+			"	pushq %r8\n"
+			"	pushq %r9\n"
+			"	pushq %r10\n"
+			"	pushq %r11\n"
+			"	pushq %rbx\n"
+			"	pushq %rbp\n"
+			"	pushq %r12\n"
+			"	pushq %r13\n"
+			"	pushq %r14\n"
+			"	pushq %r15\n"
+			"	movq %rsp, %rdi\n"
+			"	call trampoline_handler\n"
+			/* Replace saved sp with true return address. */
+			"	movq %rax, 152(%rsp)\n"
+			"	popq %r15\n"
+			"	popq %r14\n"
+			"	popq %r13\n"
+			"	popq %r12\n"
+			"	popq %rbp\n"
+			"	popq %rbx\n"
+			"	popq %r11\n"
+			"	popq %r10\n"
+			"	popq %r9\n"
+			"	popq %r8\n"
+			"	popq %rax\n"
+			"	popq %rcx\n"
+			"	popq %rdx\n"
+			"	popq %rsi\n"
+			"	popq %rdi\n"
+			/* Skip orig_ax, ip, cs */
+			"	addq $24, %rsp\n"
+			"	popfq\n"
+			"	ret\n");
  }
 
 /*
- * Called when we hit the probe point at kretprobe_trampoline
+ * Called from kretprobe_trampoline
  */
-int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
+fastcall void * __kprobes trampoline_handler(struct pt_regs *regs)
 {
 	struct kretprobe_instance *ri = NULL;
 	struct hlist_head *head, empty_rp;
@@ -532,6 +578,10 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
 	INIT_HLIST_HEAD(&empty_rp);
 	spin_lock_irqsave(&kretprobe_lock, flags);
 	head = kretprobe_inst_table_head(current);
+	/* fixup rt_regs */
+	regs->cs = __KERNEL_CS;
+	regs->ip = trampoline_address;
+	regs->orig_ax = 0xffffffffffffffff;
 
 	/*
 	 * It is possible to have multiple instances associated with a given
@@ -551,8 +601,12 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
 			/* another task is sharing our hash bucket */
 			continue;
 
-		if (ri->rp && ri->rp->handler)
+		if (ri->rp && ri->rp->handler) {
+			__get_cpu_var(current_kprobe) = &ri->rp->kp;
+			get_kprobe_ctlblk()->kprobe_status = KPROBE_HIT_ACTIVE;
 			ri->rp->handler(ri, regs);
+			__get_cpu_var(current_kprobe) = NULL;
+		}
 
 		orig_ret_address = (unsigned long)ri->ret_addr;
 		recycle_rp_inst(ri, &empty_rp);
@@ -567,22 +621,14 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
 	}
 
 	kretprobe_assert(ri, orig_ret_address, trampoline_address);
-	regs->ip = orig_ret_address;
 
-	reset_current_kprobe();
 	spin_unlock_irqrestore(&kretprobe_lock, flags);
-	preempt_enable_no_resched();
 
 	hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
 		hlist_del(&ri->hlist);
 		kfree(ri);
 	}
-	/*
-	 * By returning a non-zero value, we are telling
-	 * kprobe_handler() that we don't want the post_handler
-	 * to run (and have re-enabled preemption)
-	 */
-	return 1;
+	return (void *)orig_ret_address;
 }
 
 /*
@@ -881,20 +927,12 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 	return 0;
 }
 
-static struct kprobe trampoline_p = {
-	.addr = (kprobe_opcode_t *) &kretprobe_trampoline,
-	.pre_handler = trampoline_probe_handler
-};
-
 int __init arch_init_kprobes(void)
 {
-	return register_kprobe(&trampoline_p);
+	return 0;
 }
 
 int __kprobes arch_trampoline_kprobe(struct kprobe *p)
 {
-	if (p->addr == (kprobe_opcode_t *)&kretprobe_trampoline)
-		return 1;
-
 	return 0;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 8533bbe9f87b01f49ff951f665ea1988252fa3c2 Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Wed, 30 Jan 2008 13:31:21 +0100
Subject: x86: prepare kprobes code for x86 unification

This patch cleanup kprobes code on x86 for unification.
This patch is based on Arjan's previous work.

- Remove spurious whitespace changes
- Add harmless includes
- Make the 32/64 files more identical
 - Generalize structure fields' and local variable name.
 - Wrap accessing to stack address by macros.
 - Modify bitmap making macro.
 - Merge fixup code into is_riprel() and change its name to fix_riprel().
 - Set MAX_INSN_SIZE to 16 on both arch.
 - Use u32 for bitmaps on both architectures.
 - Clarify some comments.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Jim Keniston <jkenisto@us.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes_32.c | 321 ++++++++++++++++++++-------------
 arch/x86/kernel/kprobes_64.c | 409 ++++++++++++++++++++++---------------------
 arch/x86/mm/fault_32.c       |   1 -
 arch/x86/mm/fault_64.c       |   1 -
 include/asm-x86/kprobes_32.h |  32 ++--
 include/asm-x86/kprobes_64.h |  30 ++--
 6 files changed, 447 insertions(+), 347 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes_32.c b/arch/x86/kernel/kprobes_32.c
index 8eccd2d04709..8e06431d8b03 100644
--- a/arch/x86/kernel/kprobes_32.c
+++ b/arch/x86/kernel/kprobes_32.c
@@ -29,10 +29,15 @@
 
 #include <linux/kprobes.h>
 #include <linux/ptrace.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include <linux/preempt.h>
+#include <linux/module.h>
 #include <linux/kdebug.h>
+
 #include <asm/cacheflush.h>
 #include <asm/desc.h>
+#include <asm/pgtable.h>
 #include <asm/uaccess.h>
 #include <asm/alternative.h>
 
@@ -41,65 +46,121 @@ void jprobe_return_end(void);
 DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
 DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 
+/*
+ * "&regs->sp" looks wrong, but it's correct for x86_32.  x86_32 CPUs
+ * don't save the ss and esp registers if the CPU is already in kernel
+ * mode when it traps.  So for kprobes, regs->sp and regs->ss are not
+ * the [nonexistent] saved stack pointer and ss register, but rather
+ * the top 8 bytes of the pre-int3 stack.  So &regs->sp happens to
+ * point to the top of the pre-int3 stack.
+ */
+#define stack_addr(regs) ((unsigned long *)&regs->sp)
+
+#define W(row, b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, ba, bb, bc, bd, be, bf)\
+	(((b0##UL << 0x0)|(b1##UL << 0x1)|(b2##UL << 0x2)|(b3##UL << 0x3) |   \
+	  (b4##UL << 0x4)|(b5##UL << 0x5)|(b6##UL << 0x6)|(b7##UL << 0x7) |   \
+	  (b8##UL << 0x8)|(b9##UL << 0x9)|(ba##UL << 0xa)|(bb##UL << 0xb) |   \
+	  (bc##UL << 0xc)|(bd##UL << 0xd)|(be##UL << 0xe)|(bf##UL << 0xf))    \
+	 << (row % 32))
+	/*
+	 * Undefined/reserved opcodes, conditional jump, Opcode Extension
+	 * Groups, and some special opcodes can not boost.
+	 */
+static const u32 twobyte_is_boostable[256 / 32] = {
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+	/*      ----------------------------------------------          */
+	W(0x00, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0) | /* 00 */
+	W(0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 10 */
+	W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 20 */
+	W(0x30, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 30 */
+	W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 40 */
+	W(0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 50 */
+	W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1) | /* 60 */
+	W(0x70, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1) , /* 70 */
+	W(0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 80 */
+	W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 90 */
+	W(0xa0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) | /* a0 */
+	W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1) , /* b0 */
+	W(0xc0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1) | /* c0 */
+	W(0xd0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) , /* d0 */
+	W(0xe0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) | /* e0 */
+	W(0xf0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0)   /* f0 */
+	/*      -----------------------------------------------         */
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+};
+static const u32 onebyte_has_modrm[256 / 32] = {
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+	/*      -----------------------------------------------         */
+	W(0x00, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* 00 */
+	W(0x10, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) , /* 10 */
+	W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* 20 */
+	W(0x30, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) , /* 30 */
+	W(0x40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 40 */
+	W(0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 50 */
+	W(0x60, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0) | /* 60 */
+	W(0x70, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 70 */
+	W(0x80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 80 */
+	W(0x90, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 90 */
+	W(0xa0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* a0 */
+	W(0xb0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* b0 */
+	W(0xc0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0) | /* c0 */
+	W(0xd0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1) , /* d0 */
+	W(0xe0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* e0 */
+	W(0xf0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1)   /* f0 */
+	/*      -----------------------------------------------         */
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+};
+static const u32 twobyte_has_modrm[256 / 32] = {
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+	/*      -----------------------------------------------         */
+	W(0x00, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1) | /* 0f */
+	W(0x10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0) , /* 1f */
+	W(0x20, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1) | /* 2f */
+	W(0x30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 3f */
+	W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 4f */
+	W(0x50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 5f */
+	W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 6f */
+	W(0x70, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1) , /* 7f */
+	W(0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 8f */
+	W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 9f */
+	W(0xa0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1) | /* af */
+	W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1) , /* bf */
+	W(0xc0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0) | /* cf */
+	W(0xd0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* df */
+	W(0xe0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* ef */
+	W(0xf0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0)   /* ff */
+	/*      -----------------------------------------------         */
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+};
+#undef W
+
 struct kretprobe_blackpoint kretprobe_blacklist[] = {
 	{"__switch_to", }, /* This function switches only current task, but
-			     doesn't switch kernel stack.*/
+			      doesn't switch kernel stack.*/
 	{NULL, NULL}	/* Terminator */
 };
 const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
 
-/* insert a jmp code */
+/* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
 static __always_inline void set_jmp_op(void *from, void *to)
 {
 	struct __arch_jmp_op {
 		char op;
-		long raddr;
-	} __attribute__((packed)) *jop;
+		s32 raddr;
+	} __attribute__((packed)) * jop;
 	jop = (struct __arch_jmp_op *)from;
-	jop->raddr = (long)(to) - ((long)(from) + 5);
+	jop->raddr = (s32)((long)(to) - ((long)(from) + 5));
 	jop->op = RELATIVEJUMP_INSTRUCTION;
 }
 
 /*
- * returns non-zero if opcodes can be boosted.
+ * returns non-zero if opcode is boostable.
  */
 static __always_inline int can_boost(kprobe_opcode_t *opcodes)
 {
-#define W(row,b0,b1,b2,b3,b4,b5,b6,b7,b8,b9,ba,bb,bc,bd,be,bf)		      \
-	(((b0##UL << 0x0)|(b1##UL << 0x1)|(b2##UL << 0x2)|(b3##UL << 0x3) |   \
-	  (b4##UL << 0x4)|(b5##UL << 0x5)|(b6##UL << 0x6)|(b7##UL << 0x7) |   \
-	  (b8##UL << 0x8)|(b9##UL << 0x9)|(ba##UL << 0xa)|(bb##UL << 0xb) |   \
-	  (bc##UL << 0xc)|(bd##UL << 0xd)|(be##UL << 0xe)|(bf##UL << 0xf))    \
-	 << (row % 32))
-	/*
-	 * Undefined/reserved opcodes, conditional jump, Opcode Extension
-	 * Groups, and some special opcodes can not be boost.
-	 */
-	static const unsigned long twobyte_is_boostable[256 / 32] = {
-		/*      0 1 2 3 4 5 6 7 8 9 a b c d e f         */
-		/*      -------------------------------         */
-		W(0x00, 0,0,1,1,0,0,1,0,1,1,0,0,0,0,0,0)| /* 00 */
-		W(0x10, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0), /* 10 */
-		W(0x20, 1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0)| /* 20 */
-		W(0x30, 0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0), /* 30 */
-		W(0x40, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 40 */
-		W(0x50, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0), /* 50 */
-		W(0x60, 1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1)| /* 60 */
-		W(0x70, 0,0,0,0,1,1,1,1,0,0,0,0,0,0,1,1), /* 70 */
-		W(0x80, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)| /* 80 */
-		W(0x90, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1), /* 90 */
-		W(0xa0, 1,1,0,1,1,1,0,0,1,1,0,1,1,1,0,1)| /* a0 */
-		W(0xb0, 1,1,1,1,1,1,1,1,0,0,0,1,1,1,1,1), /* b0 */
-		W(0xc0, 1,1,0,0,0,0,0,0,1,1,1,1,1,1,1,1)| /* c0 */
-		W(0xd0, 0,1,1,1,0,1,0,0,1,1,0,1,1,1,0,1), /* d0 */
-		W(0xe0, 0,1,1,0,0,1,0,0,1,1,0,1,1,1,0,1)| /* e0 */
-		W(0xf0, 0,1,1,1,0,1,0,0,1,1,1,0,1,1,1,0)  /* f0 */
-		/*      -------------------------------         */
-		/*      0 1 2 3 4 5 6 7 8 9 a b c d e f         */
-	};
-#undef W
 	kprobe_opcode_t opcode;
 	kprobe_opcode_t *orig_opcodes = opcodes;
+
 retry:
 	if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1)
 		return 0;
@@ -109,7 +170,8 @@ retry:
 	if (opcode == 0x0f) {
 		if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1)
 			return 0;
-		return test_bit(*opcodes, twobyte_is_boostable);
+		return test_bit(*opcodes,
+				(unsigned long *)twobyte_is_boostable);
 	}
 
 	switch (opcode & 0xf0) {
@@ -132,12 +194,13 @@ retry:
 	case 0xf0:
 		if ((opcode & 0x0c) == 0 && opcode != 0xf1)
 			goto retry; /* lock/rep(ne) prefix */
-		/* clear and set flags can be boost */
+		/* clear and set flags are boostable */
 		return (opcode == 0xf5 || (0xf7 < opcode && opcode < 0xfe));
 	default:
+		/* segment override prefixes are boostable */
 		if (opcode == 0x26 || opcode == 0x36 || opcode == 0x3e)
 			goto retry; /* prefixes */
-		/* can't boost CS override and call */
+		/* CS override prefix and call are not boostable */
 		return (opcode != 0x2e && opcode != 0x9a);
 	}
 }
@@ -145,9 +208,9 @@ retry:
 /*
  * returns non-zero if opcode modifies the interrupt flag.
  */
-static int __kprobes is_IF_modifier(kprobe_opcode_t opcode)
+static int __kprobes is_IF_modifier(kprobe_opcode_t *insn)
 {
-	switch (opcode) {
+	switch (*insn) {
 	case 0xfa:		/* cli */
 	case 0xfb:		/* sti */
 	case 0xcf:		/* iret/iretd */
@@ -157,20 +220,24 @@ static int __kprobes is_IF_modifier(kprobe_opcode_t opcode)
 	return 0;
 }
 
+static void __kprobes arch_copy_kprobe(struct kprobe *p)
+{
+	memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
+	if (can_boost(p->addr))
+		p->ainsn.boostable = 0;
+	else
+		p->ainsn.boostable = -1;
+
+	p->opcode = *p->addr;
+}
+
 int __kprobes arch_prepare_kprobe(struct kprobe *p)
 {
-	/* insn: must be on special executable page on i386. */
+	/* insn: must be on special executable page on x86. */
 	p->ainsn.insn = get_insn_slot();
 	if (!p->ainsn.insn)
 		return -ENOMEM;
-
-	memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
-	p->opcode = *p->addr;
-	if (can_boost(p->addr)) {
-		p->ainsn.boostable = 0;
-	} else {
-		p->ainsn.boostable = -1;
-	}
+	arch_copy_kprobe(p);
 	return 0;
 }
 
@@ -195,26 +262,26 @@ static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
 {
 	kcb->prev_kprobe.kp = kprobe_running();
 	kcb->prev_kprobe.status = kcb->kprobe_status;
-	kcb->prev_kprobe.old_eflags = kcb->kprobe_old_eflags;
-	kcb->prev_kprobe.saved_eflags = kcb->kprobe_saved_eflags;
+	kcb->prev_kprobe.old_flags = kcb->kprobe_old_flags;
+	kcb->prev_kprobe.saved_flags = kcb->kprobe_saved_flags;
 }
 
 static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
 {
 	__get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp;
 	kcb->kprobe_status = kcb->prev_kprobe.status;
-	kcb->kprobe_old_eflags = kcb->prev_kprobe.old_eflags;
-	kcb->kprobe_saved_eflags = kcb->prev_kprobe.saved_eflags;
+	kcb->kprobe_old_flags = kcb->prev_kprobe.old_flags;
+	kcb->kprobe_saved_flags = kcb->prev_kprobe.saved_flags;
 }
 
 static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
 				struct kprobe_ctlblk *kcb)
 {
 	__get_cpu_var(current_kprobe) = p;
-	kcb->kprobe_saved_eflags = kcb->kprobe_old_eflags
+	kcb->kprobe_saved_flags = kcb->kprobe_old_flags
 		= (regs->flags & (TF_MASK | IF_MASK));
-	if (is_IF_modifier(p->opcode))
-		kcb->kprobe_saved_eflags &= ~IF_MASK;
+	if (is_IF_modifier(p->ainsn.insn))
+		kcb->kprobe_saved_flags &= ~IF_MASK;
 }
 
 static __always_inline void clear_btf(void)
@@ -245,7 +312,7 @@ static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 				      struct pt_regs *regs)
 {
-	unsigned long *sara = (unsigned long *)&regs->sp;
+	unsigned long *sara = stack_addr(regs);
 
 	ri->ret_addr = (kprobe_opcode_t *) *sara;
 
@@ -280,7 +347,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 			if (kcb->kprobe_status == KPROBE_HIT_SS &&
 				*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
 				regs->flags &= ~TF_MASK;
-				regs->flags |= kcb->kprobe_saved_eflags;
+				regs->flags |= kcb->kprobe_saved_flags;
 				goto no_kprobe;
 			}
 			/* We have reentered the kprobe_handler(), since
@@ -301,7 +368,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 			 * another cpu right after we hit, no further
 			 * handling of this interrupt is appropriate
 			 */
-				regs->ip -= sizeof(kprobe_opcode_t);
+				regs->ip = (unsigned long)addr;
 				ret = 1;
 				goto no_kprobe;
 			}
@@ -325,7 +392,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 			 * Back up over the (now missing) int3 and run
 			 * the original instruction.
 			 */
-			regs->ip -= sizeof(kprobe_opcode_t);
+			regs->ip = (unsigned long)addr;
 			ret = 1;
 		}
 		/* Not one of ours: let kernel handle it */
@@ -341,7 +408,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 
 ss_probe:
 #if !defined(CONFIG_PREEMPT) || defined(CONFIG_PM)
-	if (p->ainsn.boostable == 1 && !p->post_handler){
+	if (p->ainsn.boostable == 1 && !p->post_handler) {
 		/* Boost up -- we can execute copied instructions directly */
 		reset_current_kprobe();
 		regs->ip = (unsigned long)p->ainsn.insn;
@@ -359,16 +426,18 @@ no_kprobe:
 }
 
 /*
- * For function-return probes, init_kprobes() establishes a probepoint
- * here. When a retprobed function returns, this probe is hit and
- * trampoline_probe_handler() runs, calling the kretprobe's handler.
+ * When a retprobed function returns, this code saves registers and
+ * calls trampoline_handler() runs, which calls the kretprobe's handler.
  */
  void __kprobes kretprobe_trampoline_holder(void)
  {
 	asm volatile ( ".global kretprobe_trampoline\n"
 			"kretprobe_trampoline: \n"
 			"	pushf\n"
-			/* skip cs, ip, orig_ax */
+			/*
+			 * Skip cs, ip, orig_ax.
+			 * trampoline_handler() will plug in these values
+			 */
 			"	subl $12, %esp\n"
 			"	pushl %fs\n"
 			"	pushl %ds\n"
@@ -382,10 +451,10 @@ no_kprobe:
 			"	pushl %ebx\n"
 			"	movl %esp, %eax\n"
 			"	call trampoline_handler\n"
-			/* move flags to cs */
+			/* Move flags to cs */
 			"	movl 52(%esp), %edx\n"
 			"	movl %edx, 48(%esp)\n"
-			/* save true return address on flags */
+			/* Replace saved flags with true return address. */
 			"	movl %eax, 52(%esp)\n"
 			"	popl %ebx\n"
 			"	popl %ecx\n"
@@ -394,16 +463,16 @@ no_kprobe:
 			"	popl %edi\n"
 			"	popl %ebp\n"
 			"	popl %eax\n"
-			/* skip ip, orig_ax, es, ds, fs */
+			/* Skip ip, orig_ax, es, ds, fs */
 			"	addl $20, %esp\n"
 			"	popf\n"
 			"	ret\n");
-}
+ }
 
 /*
  * Called from kretprobe_trampoline
  */
-void *__kprobes trampoline_handler(struct pt_regs *regs)
+void * __kprobes trampoline_handler(struct pt_regs *regs)
 {
 	struct kretprobe_instance *ri = NULL;
 	struct hlist_head *head, empty_rp;
@@ -417,27 +486,27 @@ void *__kprobes trampoline_handler(struct pt_regs *regs)
 	/* fixup registers */
 	regs->cs = __KERNEL_CS | get_kernel_rpl();
 	regs->ip = trampoline_address;
-	regs->orig_ax = 0xffffffff;
+	regs->orig_ax = ~0UL;
 
 	/*
 	 * It is possible to have multiple instances associated with a given
-	 * task either because an multiple functions in the call path
-	 * have a return probe installed on them, and/or more then one return
+	 * task either because multiple functions in the call path have
+	 * return probes installed on them, and/or more then one
 	 * return probe was registered for a target function.
 	 *
 	 * We can handle this because:
-	 *     - instances are always inserted at the head of the list
+	 *     - instances are always pushed into the head of the list
 	 *     - when multiple return probes are registered for the same
-	 *       function, the first instance's ret_addr will point to the
-	 *       real return address, and all the rest will point to
-	 *       kretprobe_trampoline
+	 *	 function, the (chronologically) first instance's ret_addr
+	 *	 will be the real return address, and all the rest will
+	 *	 point to kretprobe_trampoline.
 	 */
 	hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
 		if (ri->task != current)
 			/* another task is sharing our hash bucket */
 			continue;
 
-		if (ri->rp && ri->rp->handler){
+		if (ri->rp && ri->rp->handler) {
 			__get_cpu_var(current_kprobe) = &ri->rp->kp;
 			get_kprobe_ctlblk()->kprobe_status = KPROBE_HIT_ACTIVE;
 			ri->rp->handler(ri, regs);
@@ -457,13 +526,14 @@ void *__kprobes trampoline_handler(struct pt_regs *regs)
 	}
 
 	kretprobe_assert(ri, orig_ret_address, trampoline_address);
+
 	spin_unlock_irqrestore(&kretprobe_lock, flags);
 
 	hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
 		hlist_del(&ri->hlist);
 		kfree(ri);
 	}
-	return (void*)orig_ret_address;
+	return (void *)orig_ret_address;
 }
 
 /*
@@ -488,48 +558,55 @@ void *__kprobes trampoline_handler(struct pt_regs *regs)
  * that is atop the stack is the address following the copied instruction.
  * We need to make it the address following the original instruction.
  *
- * This function also checks instruction size for preparing direct execution.
+ * If this is the first time we've single-stepped the instruction at
+ * this probepoint, and the instruction is boostable, boost it: add a
+ * jump instruction after the copied instruction, that jumps to the next
+ * instruction after the probepoint.
  */
 static void __kprobes resume_execution(struct kprobe *p,
 		struct pt_regs *regs, struct kprobe_ctlblk *kcb)
 {
-	unsigned long *tos = (unsigned long *)&regs->sp;
-	unsigned long copy_eip = (unsigned long)p->ainsn.insn;
-	unsigned long orig_eip = (unsigned long)p->addr;
+	unsigned long *tos = stack_addr(regs);
+	unsigned long copy_ip = (unsigned long)p->ainsn.insn;
+	unsigned long orig_ip = (unsigned long)p->addr;
+	kprobe_opcode_t *insn = p->ainsn.insn;
 
 	regs->flags &= ~TF_MASK;
-	switch (p->ainsn.insn[0]) {
-	case 0x9c:		/* pushfl */
+	switch (*insn) {
+	case 0x9c:	/* pushfl */
 		*tos &= ~(TF_MASK | IF_MASK);
-		*tos |= kcb->kprobe_old_eflags;
+		*tos |= kcb->kprobe_old_flags;
 		break;
-	case 0xc2:		/* iret/ret/lret */
+	case 0xc2:	/* iret/ret/lret */
 	case 0xc3:
 	case 0xca:
 	case 0xcb:
 	case 0xcf:
-	case 0xea:		/* jmp absolute -- ip is correct */
+	case 0xea:	/* jmp absolute -- ip is correct */
 		/* ip is already adjusted, no more changes required */
 		p->ainsn.boostable = 1;
 		goto no_change;
-	case 0xe8:		/* call relative - Fix return addr */
-		*tos = orig_eip + (*tos - copy_eip);
+	case 0xe8:	/* call relative - Fix return addr */
+		*tos = orig_ip + (*tos - copy_ip);
 		break;
-	case 0x9a:		/* call absolute -- same as call absolute, indirect */
-		*tos = orig_eip + (*tos - copy_eip);
+	case 0x9a:	/* call absolute -- same as call absolute, indirect */
+		*tos = orig_ip + (*tos - copy_ip);
 		goto no_change;
 	case 0xff:
-		if ((p->ainsn.insn[1] & 0x30) == 0x10) {
+		if ((insn[1] & 0x30) == 0x10) {
 			/*
 			 * call absolute, indirect
 			 * Fix return addr; ip is correct.
 			 * But this is not boostable
 			 */
-			*tos = orig_eip + (*tos - copy_eip);
+			*tos = orig_ip + (*tos - copy_ip);
 			goto no_change;
-		} else if (((p->ainsn.insn[1] & 0x31) == 0x20) ||	/* jmp near, absolute indirect */
-			   ((p->ainsn.insn[1] & 0x31) == 0x21)) {	/* jmp far, absolute indirect */
-			/* ip is correct. And this is boostable */
+		} else if (((insn[1] & 0x31) == 0x20) ||
+			   ((insn[1] & 0x31) == 0x21)) {
+			/*
+			 * jmp near and far, absolute indirect
+			 * ip is correct. And this is boostable
+			 */
 			p->ainsn.boostable = 1;
 			goto no_change;
 		}
@@ -538,21 +615,21 @@ static void __kprobes resume_execution(struct kprobe *p,
 	}
 
 	if (p->ainsn.boostable == 0) {
-		if ((regs->ip > copy_eip) &&
-		    (regs->ip - copy_eip) + 5 < MAX_INSN_SIZE) {
+		if ((regs->ip > copy_ip) &&
+		    (regs->ip - copy_ip) + 5 < MAX_INSN_SIZE) {
 			/*
 			 * These instructions can be executed directly if it
 			 * jumps back to correct address.
 			 */
 			set_jmp_op((void *)regs->ip,
-				   (void *)orig_eip + (regs->ip - copy_eip));
+				   (void *)orig_ip + (regs->ip - copy_ip));
 			p->ainsn.boostable = 1;
 		} else {
 			p->ainsn.boostable = -1;
 		}
 	}
 
-	regs->ip = orig_eip + (regs->ip - copy_eip);
+	regs->ip += orig_ip - copy_ip;
 
 no_change:
 	restore_btf();
@@ -578,10 +655,10 @@ static int __kprobes post_kprobe_handler(struct pt_regs *regs)
 	}
 
 	resume_execution(cur, regs, kcb);
-	regs->flags |= kcb->kprobe_saved_eflags;
+	regs->flags |= kcb->kprobe_saved_flags;
 	trace_hardirqs_fixup_flags(regs->flags);
 
-	/*Restore back the original saved kprobes variables and continue. */
+	/* Restore back the original saved kprobes variables and continue. */
 	if (kcb->kprobe_status == KPROBE_REENTER) {
 		restore_previous_kprobe(kcb);
 		goto out;
@@ -617,7 +694,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 		 * normal page fault.
 		 */
 		regs->ip = (unsigned long)cur->addr;
-		regs->flags |= kcb->kprobe_old_eflags;
+		regs->flags |= kcb->kprobe_old_flags;
 		if (kcb->kprobe_status == KPROBE_REENTER)
 			restore_previous_kprobe(kcb);
 		else
@@ -628,7 +705,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 	case KPROBE_HIT_SSDONE:
 		/*
 		 * We increment the nmissed count for accounting,
-		 * we can also use npre/npostfault count for accouting
+		 * we can also use npre/npostfault count for accounting
 		 * these specific fault cases.
 		 */
 		kprobes_inc_nmissed_count(cur);
@@ -651,7 +728,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 			return 1;
 
 		/*
-		 * fixup_exception() could not handle it,
+		 * fixup routine could not handle it,
 		 * Let do_page_fault() fix it.
 		 */
 		break;
@@ -662,7 +739,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 }
 
 /*
- * Wrapper routine to for handling exceptions.
+ * Wrapper routine for handling exceptions.
  */
 int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
 				       unsigned long val, void *data)
@@ -703,11 +780,11 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 
 	kcb->jprobe_saved_regs = *regs;
-	kcb->jprobe_saved_esp = &regs->sp;
-	addr = (unsigned long)(kcb->jprobe_saved_esp);
+	kcb->jprobe_saved_sp = stack_addr(regs);
+	addr = (unsigned long)(kcb->jprobe_saved_sp);
 
 	/*
-	 * TBD: As Linus pointed out, gcc assumes that the callee
+	 * As Linus pointed out, gcc assumes that the callee
 	 * owns the argument space and could overwrite it, e.g.
 	 * tailcall optimization. So, to be absolutely safe
 	 * we also save and restore enough stack bytes to cover
@@ -730,21 +807,20 @@ void __kprobes jprobe_return(void)
 		      "       .globl jprobe_return_end	\n"
 		      "       jprobe_return_end:	\n"
 		      "       nop			\n"::"b"
-		      (kcb->jprobe_saved_esp):"memory");
+		      (kcb->jprobe_saved_sp):"memory");
 }
 
 int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 {
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 	u8 *addr = (u8 *) (regs->ip - 1);
-	unsigned long stack_addr = (unsigned long)(kcb->jprobe_saved_esp);
 	struct jprobe *jp = container_of(p, struct jprobe, kp);
 
 	if ((addr > (u8 *) jprobe_return) && (addr < (u8 *) jprobe_return_end)) {
-		if (&regs->sp != kcb->jprobe_saved_esp) {
+		if (stack_addr(regs) != kcb->jprobe_saved_sp) {
 			struct pt_regs *saved_regs = &kcb->jprobe_saved_regs;
 			printk("current sp %p does not match saved sp %p\n",
-			       &regs->sp, kcb->jprobe_saved_esp);
+			       stack_addr(regs), kcb->jprobe_saved_sp);
 			printk("Saved registers for jprobe %p\n", jp);
 			show_registers(saved_regs);
 			printk("Current registers\n");
@@ -752,20 +828,21 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 			BUG();
 		}
 		*regs = kcb->jprobe_saved_regs;
-		memcpy((kprobe_opcode_t *) stack_addr, kcb->jprobes_stack,
-		       MIN_STACK_SIZE(stack_addr));
+		memcpy((kprobe_opcode_t *)(kcb->jprobe_saved_sp),
+		       kcb->jprobes_stack,
+		       MIN_STACK_SIZE(kcb->jprobe_saved_sp));
 		preempt_enable_no_resched();
 		return 1;
 	}
 	return 0;
 }
 
-int __kprobes arch_trampoline_kprobe(struct kprobe *p)
+int __init arch_init_kprobes(void)
 {
 	return 0;
 }
 
-int __init arch_init_kprobes(void)
+int __kprobes arch_trampoline_kprobe(struct kprobe *p)
 {
 	return 0;
 }
diff --git a/arch/x86/kernel/kprobes_64.c b/arch/x86/kernel/kprobes_64.c
index bc93b1dd9a01..2d7763749b1b 100644
--- a/arch/x86/kernel/kprobes_64.c
+++ b/arch/x86/kernel/kprobes_64.c
@@ -40,16 +40,97 @@
 #include <linux/module.h>
 #include <linux/kdebug.h>
 
+#include <asm/cacheflush.h>
+#include <asm/desc.h>
 #include <asm/pgtable.h>
 #include <asm/uaccess.h>
 #include <asm/alternative.h>
 
 void jprobe_return_end(void);
-static void __kprobes arch_copy_kprobe(struct kprobe *p);
 
 DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
 DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 
+#define stack_addr(regs) ((unsigned long *)regs->sp)
+
+#define W(row, b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, ba, bb, bc, bd, be, bf)\
+	(((b0##UL << 0x0)|(b1##UL << 0x1)|(b2##UL << 0x2)|(b3##UL << 0x3) |   \
+	  (b4##UL << 0x4)|(b5##UL << 0x5)|(b6##UL << 0x6)|(b7##UL << 0x7) |   \
+	  (b8##UL << 0x8)|(b9##UL << 0x9)|(ba##UL << 0xa)|(bb##UL << 0xb) |   \
+	  (bc##UL << 0xc)|(bd##UL << 0xd)|(be##UL << 0xe)|(bf##UL << 0xf))    \
+	 << (row % 32))
+	/*
+	 * Undefined/reserved opcodes, conditional jump, Opcode Extension
+	 * Groups, and some special opcodes can not boost.
+	 */
+static const u32 twobyte_is_boostable[256 / 32] = {
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+	/*      ----------------------------------------------          */
+	W(0x00, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0) | /* 00 */
+	W(0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 10 */
+	W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 20 */
+	W(0x30, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 30 */
+	W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 40 */
+	W(0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 50 */
+	W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1) | /* 60 */
+	W(0x70, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1) , /* 70 */
+	W(0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 80 */
+	W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 90 */
+	W(0xa0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) | /* a0 */
+	W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1) , /* b0 */
+	W(0xc0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1) | /* c0 */
+	W(0xd0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) , /* d0 */
+	W(0xe0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) | /* e0 */
+	W(0xf0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0)   /* f0 */
+	/*      -----------------------------------------------         */
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+};
+static const u32 onebyte_has_modrm[256 / 32] = {
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+	/*      -----------------------------------------------         */
+	W(0x00, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* 00 */
+	W(0x10, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) , /* 10 */
+	W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* 20 */
+	W(0x30, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) , /* 30 */
+	W(0x40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 40 */
+	W(0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 50 */
+	W(0x60, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0) | /* 60 */
+	W(0x70, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 70 */
+	W(0x80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 80 */
+	W(0x90, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 90 */
+	W(0xa0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* a0 */
+	W(0xb0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* b0 */
+	W(0xc0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0) | /* c0 */
+	W(0xd0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1) , /* d0 */
+	W(0xe0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* e0 */
+	W(0xf0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1)   /* f0 */
+	/*      -----------------------------------------------         */
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+};
+static const u32 twobyte_has_modrm[256 / 32] = {
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+	/*      -----------------------------------------------         */
+	W(0x00, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1) | /* 0f */
+	W(0x10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0) , /* 1f */
+	W(0x20, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1) | /* 2f */
+	W(0x30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 3f */
+	W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 4f */
+	W(0x50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 5f */
+	W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 6f */
+	W(0x70, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1) , /* 7f */
+	W(0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 8f */
+	W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 9f */
+	W(0xa0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1) | /* af */
+	W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1) , /* bf */
+	W(0xc0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0) | /* cf */
+	W(0xd0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* df */
+	W(0xe0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* ef */
+	W(0xf0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0)   /* ff */
+	/*      -----------------------------------------------         */
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+};
+#undef W
+
 struct kretprobe_blackpoint kretprobe_blacklist[] = {
 	{"__switch_to", }, /* This function switches only current task, but
 			      doesn't switch kernel stack.*/
@@ -70,44 +151,11 @@ static __always_inline void set_jmp_op(void *from, void *to)
 }
 
 /*
- * returns non-zero if opcode is boostable
+ * returns non-zero if opcode is boostable.
  * RIP relative instructions are adjusted at copying time
  */
 static __always_inline int can_boost(kprobe_opcode_t *opcodes)
 {
-#define W(row, b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, ba, bb, bc, bd, be, bf)\
-	(((b0##UL << 0x0)|(b1##UL << 0x1)|(b2##UL << 0x2)|(b3##UL << 0x3) |   \
-	  (b4##UL << 0x4)|(b5##UL << 0x5)|(b6##UL << 0x6)|(b7##UL << 0x7) |   \
-	  (b8##UL << 0x8)|(b9##UL << 0x9)|(ba##UL << 0xa)|(bb##UL << 0xb) |   \
-	  (bc##UL << 0xc)|(bd##UL << 0xd)|(be##UL << 0xe)|(bf##UL << 0xf))    \
-	 << (row % 64))
-	/*
-	 * Undefined/reserved opcodes, conditional jump, Opcode Extension
-	 * Groups, and some special opcodes can not boost.
-	 */
-	static const unsigned long twobyte_is_boostable[256 / 64] = {
-		/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f        */
-		/*      ----------------------------------------------        */
-		W(0x00, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0)|/* 00 */
-		W(0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)|/* 10 */
-		W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)|/* 20 */
-		W(0x30, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),/* 30 */
-		W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1)|/* 40 */
-		W(0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)|/* 50 */
-		W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1)|/* 60 */
-		W(0x70, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1),/* 70 */
-		W(0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)|/* 80 */
-		W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1)|/* 90 */
-		W(0xa0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1)|/* a0 */
-		W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1),/* b0 */
-		W(0xc0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1)|/* c0 */
-		W(0xd0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1)|/* d0 */
-		W(0xe0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1)|/* e0 */
-		W(0xf0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0) /* f0 */
-		/*      -----------------------------------------------       */
-		/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f        */
-	};
-#undef W
 	kprobe_opcode_t opcode;
 	kprobe_opcode_t *orig_opcodes = opcodes;
 
@@ -120,7 +168,8 @@ retry:
 	if (opcode == 0x0f) {
 		if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1)
 			return 0;
-		return test_bit(*opcodes, twobyte_is_boostable);
+		return test_bit(*opcodes,
+				(unsigned long *)twobyte_is_boostable);
 	}
 
 	switch (opcode & 0xf0) {
@@ -169,80 +218,25 @@ static int __kprobes is_IF_modifier(kprobe_opcode_t *insn)
 		return 1;
 	}
 
-	if (*insn  >= 0x40 && *insn <= 0x4f && *++insn == 0xcf)
-		return 1;
-	return 0;
-}
-
-int __kprobes arch_prepare_kprobe(struct kprobe *p)
-{
-	/* insn: must be on special executable page on x86_64. */
-	p->ainsn.insn = get_insn_slot();
-	if (!p->ainsn.insn) {
-		return -ENOMEM;
-	}
-	arch_copy_kprobe(p);
+	/*
+	 * on 64 bit x86, 0x40-0x4f are prefixes so we need to look
+	 * at the next byte instead.. but of course not recurse infinitely
+	 */
+	if (*insn  >= 0x40 && *insn <= 0x4f)
+		return is_IF_modifier(++insn);
 	return 0;
 }
 
 /*
- * Determine if the instruction uses the %rip-relative addressing mode.
+ * Adjust the displacement if the instruction uses the %rip-relative
+ * addressing mode.
  * If it does, Return the address of the 32-bit displacement word.
  * If not, return null.
  */
-static s32 __kprobes *is_riprel(u8 *insn)
+static void __kprobes fix_riprel(struct kprobe *p)
 {
-#define W(row,b0,b1,b2,b3,b4,b5,b6,b7,b8,b9,ba,bb,bc,bd,be,bf)		      \
-	(((b0##UL << 0x0)|(b1##UL << 0x1)|(b2##UL << 0x2)|(b3##UL << 0x3) |   \
-	  (b4##UL << 0x4)|(b5##UL << 0x5)|(b6##UL << 0x6)|(b7##UL << 0x7) |   \
-	  (b8##UL << 0x8)|(b9##UL << 0x9)|(ba##UL << 0xa)|(bb##UL << 0xb) |   \
-	  (bc##UL << 0xc)|(bd##UL << 0xd)|(be##UL << 0xe)|(bf##UL << 0xf))    \
-	 << (row % 64))
-	static const u64 onebyte_has_modrm[256 / 64] = {
-		/*      0 1 2 3 4 5 6 7 8 9 a b c d e f         */
-		/*      -------------------------------         */
-		W(0x00, 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0)| /* 00 */
-		W(0x10, 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0)| /* 10 */
-		W(0x20, 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0)| /* 20 */
-		W(0x30, 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0), /* 30 */
-		W(0x40, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)| /* 40 */
-		W(0x50, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)| /* 50 */
-		W(0x60, 0,0,1,1,0,0,0,0,0,1,0,1,0,0,0,0)| /* 60 */
-		W(0x70, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0), /* 70 */
-		W(0x80, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 80 */
-		W(0x90, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)| /* 90 */
-		W(0xa0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)| /* a0 */
-		W(0xb0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0), /* b0 */
-		W(0xc0, 1,1,0,0,1,1,1,1,0,0,0,0,0,0,0,0)| /* c0 */
-		W(0xd0, 1,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1)| /* d0 */
-		W(0xe0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)| /* e0 */
-		W(0xf0, 0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1)  /* f0 */
-		/*      -------------------------------         */
-		/*      0 1 2 3 4 5 6 7 8 9 a b c d e f         */
-	};
-	static const u64 twobyte_has_modrm[256 / 64] = {
-		/*      0 1 2 3 4 5 6 7 8 9 a b c d e f         */
-		/*      -------------------------------         */
-		W(0x00, 1,1,1,1,0,0,0,0,0,0,0,0,0,1,0,1)| /* 0f */
-		W(0x10, 1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0)| /* 1f */
-		W(0x20, 1,1,1,1,1,0,1,0,1,1,1,1,1,1,1,1)| /* 2f */
-		W(0x30, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0), /* 3f */
-		W(0x40, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 4f */
-		W(0x50, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 5f */
-		W(0x60, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 6f */
-		W(0x70, 1,1,1,1,1,1,1,0,0,0,0,0,1,1,1,1), /* 7f */
-		W(0x80, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)| /* 8f */
-		W(0x90, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 9f */
-		W(0xa0, 0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1)| /* af */
-		W(0xb0, 1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1), /* bf */
-		W(0xc0, 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0)| /* cf */
-		W(0xd0, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* df */
-		W(0xe0, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* ef */
-		W(0xf0, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0)  /* ff */
-		/*      -------------------------------         */
-		/*      0 1 2 3 4 5 6 7 8 9 a b c d e f         */
-	};
-#undef	W
+	u8 *insn = p->ainsn.insn;
+	s64 disp;
 	int need_modrm;
 
 	/* Skip legacy instruction prefixes.  */
@@ -271,54 +265,60 @@ static s32 __kprobes *is_riprel(u8 *insn)
 
 	if (*insn == 0x0f) {	/* Two-byte opcode.  */
 		++insn;
-		need_modrm = test_bit(*insn, twobyte_has_modrm);
-	} else {		/* One-byte opcode.  */
-		need_modrm = test_bit(*insn, onebyte_has_modrm);
-	}
+		need_modrm = test_bit(*insn,
+				      (unsigned long *)twobyte_has_modrm);
+	} else			/* One-byte opcode.  */
+		need_modrm = test_bit(*insn,
+				      (unsigned long *)onebyte_has_modrm);
 
 	if (need_modrm) {
 		u8 modrm = *++insn;
 		if ((modrm & 0xc7) == 0x05) { /* %rip+disp32 addressing mode */
 			/* Displacement follows ModRM byte.  */
-			return (s32 *) ++insn;
+			++insn;
+			/*
+			 * The copied instruction uses the %rip-relative
+			 * addressing mode.  Adjust the displacement for the
+			 * difference between the original location of this
+			 * instruction and the location of the copy that will
+			 * actually be run.  The tricky bit here is making sure
+			 * that the sign extension happens correctly in this
+			 * calculation, since we need a signed 32-bit result to
+			 * be sign-extended to 64 bits when it's added to the
+			 * %rip value and yield the same 64-bit result that the
+			 * sign-extension of the original signed 32-bit
+			 * displacement would have given.
+			 */
+			disp = (u8 *) p->addr + *((s32 *) insn) -
+			       (u8 *) p->ainsn.insn;
+			BUG_ON((s64) (s32) disp != disp); /* Sanity check.  */
+			*(s32 *)insn = (s32) disp;
 		}
 	}
-
-	/* No %rip-relative addressing mode here.  */
-	return NULL;
 }
 
 static void __kprobes arch_copy_kprobe(struct kprobe *p)
 {
-	s32 *ripdisp;
-	memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE);
-	ripdisp = is_riprel(p->ainsn.insn);
-	if (ripdisp) {
-		/*
-		 * The copied instruction uses the %rip-relative
-		 * addressing mode.  Adjust the displacement for the
-		 * difference between the original location of this
-		 * instruction and the location of the copy that will
-		 * actually be run.  The tricky bit here is making sure
-		 * that the sign extension happens correctly in this
-		 * calculation, since we need a signed 32-bit result to
-		 * be sign-extended to 64 bits when it's added to the
-		 * %rip value and yield the same 64-bit result that the
-		 * sign-extension of the original signed 32-bit
-		 * displacement would have given.
-		 */
-		s64 disp = (u8 *) p->addr + *ripdisp - (u8 *) p->ainsn.insn;
-		BUG_ON((s64) (s32) disp != disp); /* Sanity check.  */
-		*ripdisp = disp;
-	}
-	if (can_boost(p->addr)) {
+	memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
+	fix_riprel(p);
+	if (can_boost(p->addr))
 		p->ainsn.boostable = 0;
-	} else {
+	else
 		p->ainsn.boostable = -1;
-	}
+
 	p->opcode = *p->addr;
 }
 
+int __kprobes arch_prepare_kprobe(struct kprobe *p)
+{
+	/* insn: must be on special executable page on x86. */
+	p->ainsn.insn = get_insn_slot();
+	if (!p->ainsn.insn)
+		return -ENOMEM;
+	arch_copy_kprobe(p);
+	return 0;
+}
+
 void __kprobes arch_arm_kprobe(struct kprobe *p)
 {
 	text_poke(p->addr, ((unsigned char []){BREAKPOINT_INSTRUCTION}), 1);
@@ -340,26 +340,26 @@ static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
 {
 	kcb->prev_kprobe.kp = kprobe_running();
 	kcb->prev_kprobe.status = kcb->kprobe_status;
-	kcb->prev_kprobe.old_rflags = kcb->kprobe_old_rflags;
-	kcb->prev_kprobe.saved_rflags = kcb->kprobe_saved_rflags;
+	kcb->prev_kprobe.old_flags = kcb->kprobe_old_flags;
+	kcb->prev_kprobe.saved_flags = kcb->kprobe_saved_flags;
 }
 
 static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
 {
 	__get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp;
 	kcb->kprobe_status = kcb->prev_kprobe.status;
-	kcb->kprobe_old_rflags = kcb->prev_kprobe.old_rflags;
-	kcb->kprobe_saved_rflags = kcb->prev_kprobe.saved_rflags;
+	kcb->kprobe_old_flags = kcb->prev_kprobe.old_flags;
+	kcb->kprobe_saved_flags = kcb->prev_kprobe.saved_flags;
 }
 
 static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
 				struct kprobe_ctlblk *kcb)
 {
 	__get_cpu_var(current_kprobe) = p;
-	kcb->kprobe_saved_rflags = kcb->kprobe_old_rflags
+	kcb->kprobe_saved_flags = kcb->kprobe_old_flags
 		= (regs->flags & (TF_MASK | IF_MASK));
 	if (is_IF_modifier(p->ainsn.insn))
-		kcb->kprobe_saved_rflags &= ~IF_MASK;
+		kcb->kprobe_saved_flags &= ~IF_MASK;
 }
 
 static __always_inline void clear_btf(void)
@@ -390,20 +390,27 @@ static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 				      struct pt_regs *regs)
 {
-	unsigned long *sara = (unsigned long *)regs->sp;
+	unsigned long *sara = stack_addr(regs);
 
 	ri->ret_addr = (kprobe_opcode_t *) *sara;
+
 	/* Replace the return addr with trampoline addr */
 	*sara = (unsigned long) &kretprobe_trampoline;
 }
 
-int __kprobes kprobe_handler(struct pt_regs *regs)
+/*
+ * Interrupts are disabled on entry as trap3 is an interrupt gate and they
+ * remain disabled thorough out this function.
+ */
+static int __kprobes kprobe_handler(struct pt_regs *regs)
 {
 	struct kprobe *p;
 	int ret = 0;
-	kprobe_opcode_t *addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
+	kprobe_opcode_t *addr;
 	struct kprobe_ctlblk *kcb;
 
+	addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
+
 	/*
 	 * We don't want to be preempted for the entire
 	 * duration of kprobe processing
@@ -418,7 +425,7 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
 			if (kcb->kprobe_status == KPROBE_HIT_SS &&
 				*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
 				regs->flags &= ~TF_MASK;
-				regs->flags |= kcb->kprobe_saved_rflags;
+				regs->flags |= kcb->kprobe_saved_flags;
 				goto no_kprobe;
 			} else if (kcb->kprobe_status == KPROBE_HIT_SSDONE) {
 				/* TODO: Provide re-entrancy from
@@ -429,22 +436,20 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
 				arch_disarm_kprobe(p);
 				regs->ip = (unsigned long)p->addr;
 				reset_current_kprobe();
-				ret = 1;
-			} else {
-				/* We have reentered the kprobe_handler(), since
-				 * another probe was hit while within the
-				 * handler. We here save the original kprobe
-				 * variables and just single step on instruction
-				 * of the new probe without calling any user
-				 * handlers.
-				 */
-				save_previous_kprobe(kcb);
-				set_current_kprobe(p, regs, kcb);
-				kprobes_inc_nmissed_count(p);
-				prepare_singlestep(p, regs);
-				kcb->kprobe_status = KPROBE_REENTER;
 				return 1;
 			}
+			/* We have reentered the kprobe_handler(), since
+			 * another probe was hit while within the handler.
+			 * We here save the original kprobes variables and
+			 * just single step on the instruction of the new probe
+			 * without calling any user handlers.
+			 */
+			save_previous_kprobe(kcb);
+			set_current_kprobe(p, regs, kcb);
+			kprobes_inc_nmissed_count(p);
+			prepare_singlestep(p, regs);
+			kcb->kprobe_status = KPROBE_REENTER;
+			return 1;
 		} else {
 			if (*addr != BREAKPOINT_INSTRUCTION) {
 			/* The breakpoint instruction was removed by
@@ -578,23 +583,23 @@ fastcall void * __kprobes trampoline_handler(struct pt_regs *regs)
 	INIT_HLIST_HEAD(&empty_rp);
 	spin_lock_irqsave(&kretprobe_lock, flags);
 	head = kretprobe_inst_table_head(current);
-	/* fixup rt_regs */
+	/* fixup registers */
 	regs->cs = __KERNEL_CS;
 	regs->ip = trampoline_address;
-	regs->orig_ax = 0xffffffffffffffff;
+	regs->orig_ax = ~0UL;
 
 	/*
 	 * It is possible to have multiple instances associated with a given
-	 * task either because an multiple functions in the call path
-	 * have a return probe installed on them, and/or more then one return
+	 * task either because multiple functions in the call path have
+	 * return probes installed on them, and/or more then one
 	 * return probe was registered for a target function.
 	 *
 	 * We can handle this because:
-	 *     - instances are always inserted at the head of the list
+	 *     - instances are always pushed into the head of the list
 	 *     - when multiple return probes are registered for the same
-	 *       function, the first instance's ret_addr will point to the
-	 *       real return address, and all the rest will point to
-	 *       kretprobe_trampoline
+	 *	 function, the (chronologically) first instance's ret_addr
+	 *	 will be the real return address, and all the rest will
+	 *	 point to kretprobe_trampoline.
 	 */
 	hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
 		if (ri->task != current)
@@ -661,9 +666,9 @@ fastcall void * __kprobes trampoline_handler(struct pt_regs *regs)
 static void __kprobes resume_execution(struct kprobe *p,
 		struct pt_regs *regs, struct kprobe_ctlblk *kcb)
 {
-	unsigned long *tos = (unsigned long *)regs->sp;
-	unsigned long copy_rip = (unsigned long)p->ainsn.insn;
-	unsigned long orig_rip = (unsigned long)p->addr;
+	unsigned long *tos = stack_addr(regs);
+	unsigned long copy_ip = (unsigned long)p->ainsn.insn;
+	unsigned long orig_ip = (unsigned long)p->addr;
 	kprobe_opcode_t *insn = p->ainsn.insn;
 
 	/*skip the REX prefix*/
@@ -674,7 +679,7 @@ static void __kprobes resume_execution(struct kprobe *p,
 	switch (*insn) {
 	case 0x9c:	/* pushfl */
 		*tos &= ~(TF_MASK | IF_MASK);
-		*tos |= kcb->kprobe_old_rflags;
+		*tos |= kcb->kprobe_old_flags;
 		break;
 	case 0xc2:	/* iret/ret/lret */
 	case 0xc3:
@@ -686,18 +691,23 @@ static void __kprobes resume_execution(struct kprobe *p,
 		p->ainsn.boostable = 1;
 		goto no_change;
 	case 0xe8:	/* call relative - Fix return addr */
-		*tos = orig_rip + (*tos - copy_rip);
+		*tos = orig_ip + (*tos - copy_ip);
 		break;
 	case 0xff:
 		if ((insn[1] & 0x30) == 0x10) {
-			/* call absolute, indirect */
-			/* Fix return addr; ip is correct. */
-			/* not boostable */
-			*tos = orig_rip + (*tos - copy_rip);
+			/*
+			 * call absolute, indirect
+			 * Fix return addr; ip is correct.
+			 * But this is not boostable
+			 */
+			*tos = orig_ip + (*tos - copy_ip);
 			goto no_change;
-		} else if (((insn[1] & 0x31) == 0x20) ||	/* jmp near, absolute indirect */
-			   ((insn[1] & 0x31) == 0x21)) {	/* jmp far, absolute indirect */
-			/* ip is correct. And this is boostable */
+		} else if (((insn[1] & 0x31) == 0x20) ||
+			   ((insn[1] & 0x31) == 0x21)) {
+			/*
+			 * jmp near and far, absolute indirect
+			 * ip is correct. And this is boostable
+			 */
 			p->ainsn.boostable = 1;
 			goto no_change;
 		}
@@ -706,21 +716,21 @@ static void __kprobes resume_execution(struct kprobe *p,
 	}
 
 	if (p->ainsn.boostable == 0) {
-		if ((regs->ip > copy_rip) &&
-		    (regs->ip - copy_rip) + 5 < MAX_INSN_SIZE) {
+		if ((regs->ip > copy_ip) &&
+		    (regs->ip - copy_ip) + 5 < MAX_INSN_SIZE) {
 			/*
 			 * These instructions can be executed directly if it
 			 * jumps back to correct address.
 			 */
 			set_jmp_op((void *)regs->ip,
-				   (void *)orig_rip + (regs->ip - copy_rip));
+				   (void *)orig_ip + (regs->ip - copy_ip));
 			p->ainsn.boostable = 1;
 		} else {
 			p->ainsn.boostable = -1;
 		}
 	}
 
-	regs->ip = orig_rip + (regs->ip - copy_rip);
+	regs->ip += orig_ip - copy_ip;
 
 no_change:
 	restore_btf();
@@ -728,7 +738,11 @@ no_change:
 	return;
 }
 
-int __kprobes post_kprobe_handler(struct pt_regs *regs)
+/*
+ * Interrupts are disabled on entry as trap1 is an interrupt gate and they
+ * remain disabled thoroughout this function.
+ */
+static int __kprobes post_kprobe_handler(struct pt_regs *regs)
 {
 	struct kprobe *cur = kprobe_running();
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
@@ -742,10 +756,10 @@ int __kprobes post_kprobe_handler(struct pt_regs *regs)
 	}
 
 	resume_execution(cur, regs, kcb);
-	regs->flags |= kcb->kprobe_saved_rflags;
+	regs->flags |= kcb->kprobe_saved_flags;
 	trace_hardirqs_fixup_flags(regs->flags);
 
-	/* Restore the original saved kprobes variables and continue. */
+	/* Restore back the original saved kprobes variables and continue. */
 	if (kcb->kprobe_status == KPROBE_REENTER) {
 		restore_previous_kprobe(kcb);
 		goto out;
@@ -782,7 +796,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 		 * normal page fault.
 		 */
 		regs->ip = (unsigned long)cur->addr;
-		regs->flags |= kcb->kprobe_old_rflags;
+		regs->flags |= kcb->kprobe_old_flags;
 		if (kcb->kprobe_status == KPROBE_REENTER)
 			restore_previous_kprobe(kcb);
 		else
@@ -793,7 +807,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 	case KPROBE_HIT_SSDONE:
 		/*
 		 * We increment the nmissed count for accounting,
-		 * we can also use npre/npostfault count for accouting
+		 * we can also use npre/npostfault count for accounting
 		 * these specific fault cases.
 		 */
 		kprobes_inc_nmissed_count(cur);
@@ -819,7 +833,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 		}
 
 		/*
-		 * fixup() could not handle it,
+		 * fixup routine could not handle it,
 		 * Let do_page_fault() fix it.
 		 */
 		break;
@@ -838,7 +852,7 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
 	struct die_args *args = (struct die_args *)data;
 	int ret = NOTIFY_DONE;
 
-	if (args->regs && user_mode(args->regs))
+	if (args->regs && user_mode_vm(args->regs))
 		return ret;
 
 	switch (val) {
@@ -871,8 +885,9 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 
 	kcb->jprobe_saved_regs = *regs;
-	kcb->jprobe_saved_rsp = (long *) regs->sp;
-	addr = (unsigned long)(kcb->jprobe_saved_rsp);
+	kcb->jprobe_saved_sp = stack_addr(regs);
+	addr = (unsigned long)(kcb->jprobe_saved_sp);
+
 	/*
 	 * As Linus pointed out, gcc assumes that the callee
 	 * owns the argument space and could overwrite it, e.g.
@@ -897,21 +912,20 @@ void __kprobes jprobe_return(void)
 		      "       .globl jprobe_return_end	\n"
 		      "       jprobe_return_end:	\n"
 		      "       nop			\n"::"b"
-		      (kcb->jprobe_saved_rsp):"memory");
+		      (kcb->jprobe_saved_sp):"memory");
 }
 
 int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 {
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 	u8 *addr = (u8 *) (regs->ip - 1);
-	unsigned long stack_addr = (unsigned long)(kcb->jprobe_saved_rsp);
 	struct jprobe *jp = container_of(p, struct jprobe, kp);
 
 	if ((addr > (u8 *) jprobe_return) && (addr < (u8 *) jprobe_return_end)) {
-		if ((unsigned long *)regs->sp != kcb->jprobe_saved_rsp) {
+		if (stack_addr(regs) != kcb->jprobe_saved_sp) {
 			struct pt_regs *saved_regs = &kcb->jprobe_saved_regs;
 			printk("current sp %p does not match saved sp %p\n",
-			       (long *)regs->sp, kcb->jprobe_saved_rsp);
+			       stack_addr(regs), kcb->jprobe_saved_sp);
 			printk("Saved registers for jprobe %p\n", jp);
 			show_registers(saved_regs);
 			printk("Current registers\n");
@@ -919,8 +933,9 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 			BUG();
 		}
 		*regs = kcb->jprobe_saved_regs;
-		memcpy((kprobe_opcode_t *) stack_addr, kcb->jprobes_stack,
-		       MIN_STACK_SIZE(stack_addr));
+		memcpy((kprobe_opcode_t *)(kcb->jprobe_saved_sp),
+		       kcb->jprobes_stack,
+		       MIN_STACK_SIZE(kcb->jprobe_saved_sp));
 		preempt_enable_no_resched();
 		return 1;
 	}
diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 8aed912b04ec..db8d748814e4 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -25,7 +25,6 @@
 #include <linux/kprobes.h>
 #include <linux/uaccess.h>
 #include <linux/kdebug.h>
-#include <linux/kprobes.h>
 
 #include <asm/system.h>
 #include <asm/desc.h>
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 88a7abda29ce..162050d4e5a3 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -25,7 +25,6 @@
 #include <linux/kprobes.h>
 #include <linux/uaccess.h>
 #include <linux/kdebug.h>
-#include <linux/kprobes.h>
 
 #include <asm/system.h>
 #include <asm/pgalloc.h>
diff --git a/include/asm-x86/kprobes_32.h b/include/asm-x86/kprobes_32.h
index 2f38315bc39f..94dff09b2ebe 100644
--- a/include/asm-x86/kprobes_32.h
+++ b/include/asm-x86/kprobes_32.h
@@ -2,7 +2,6 @@
 #define _ASM_KPROBES_H
 /*
  *  Kernel Probes (KProbes)
- *  include/asm-i386/kprobes.h
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -23,14 +22,17 @@
  * 2002-Oct	Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel
  *		Probes initial implementation ( includes suggestions from
  *		Rusty Russell).
+ * 2004-Oct	Prasanna S Panchamukhi <prasanna@in.ibm.com> and Jim Keniston
+ *		kenistoj@us.ibm.com adopted from i386.
  */
 #include <linux/types.h>
 #include <linux/ptrace.h>
+#include <linux/percpu.h>
 
 #define  __ARCH_WANT_KPROBES_INSN_SLOT
 
-struct kprobe;
 struct pt_regs;
+struct kprobe;
 
 typedef u8 kprobe_opcode_t;
 #define BREAKPOINT_INSTRUCTION	0xcc
@@ -38,9 +40,11 @@ typedef u8 kprobe_opcode_t;
 #define MAX_INSN_SIZE 16
 #define MAX_STACK_SIZE 64
 #define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \
-	(((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \
+	(((unsigned long)current_thread_info()) + THREAD_SIZE \
+	 - (unsigned long)(ADDR))) \
 	? (MAX_STACK_SIZE) \
-	: (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR)))
+	: (((unsigned long)current_thread_info()) + THREAD_SIZE \
+	   - (unsigned long)(ADDR)))
 
 #define ARCH_SUPPORTS_KRETPROBES
 #define flush_insn_slot(p)	do { } while (0)
@@ -55,8 +59,12 @@ struct arch_specific_insn {
 	/* copy of the original instruction */
 	kprobe_opcode_t *insn;
 	/*
-	 * If this flag is not 0, this kprobe can be boost when its
-	 * post_handler and break_handler is not set.
+	 * boostable = -1: This instruction type is not boostable.
+	 * boostable = 0: This instruction type is boostable.
+	 * boostable = 1: This instruction has been boosted: we have
+	 * added a relative jump after the instruction copy in insn,
+	 * so no single-step and fixup are needed (unless there's
+	 * a post_handler or break_handler).
 	 */
 	int boostable;
 };
@@ -64,16 +72,16 @@ struct arch_specific_insn {
 struct prev_kprobe {
 	struct kprobe *kp;
 	unsigned long status;
-	unsigned long old_eflags;
-	unsigned long saved_eflags;
+	unsigned long old_flags;
+	unsigned long saved_flags;
 };
 
 /* per-cpu kprobe control block */
 struct kprobe_ctlblk {
 	unsigned long kprobe_status;
-	unsigned long kprobe_old_eflags;
-	unsigned long kprobe_saved_eflags;
-	unsigned long *jprobe_saved_esp;
+	unsigned long kprobe_old_flags;
+	unsigned long kprobe_saved_flags;
+	unsigned long *jprobe_saved_sp;
 	struct pt_regs jprobe_saved_regs;
 	kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE];
 	struct prev_kprobe prev_kprobe;
@@ -88,7 +96,7 @@ static inline void restore_interrupts(struct pt_regs *regs)
 		local_irq_enable();
 }
 
+extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
 extern int kprobe_exceptions_notify(struct notifier_block *self,
 				    unsigned long val, void *data);
-extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
 #endif				/* _ASM_KPROBES_H */
diff --git a/include/asm-x86/kprobes_64.h b/include/asm-x86/kprobes_64.h
index e7e921dac7c2..94dff09b2ebe 100644
--- a/include/asm-x86/kprobes_64.h
+++ b/include/asm-x86/kprobes_64.h
@@ -2,7 +2,6 @@
 #define _ASM_KPROBES_H
 /*
  *  Kernel Probes (KProbes)
- *  include/asm-x86_64/kprobes.h
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,6 +19,9 @@
  *
  * Copyright (C) IBM Corporation, 2002, 2004
  *
+ * 2002-Oct	Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel
+ *		Probes initial implementation ( includes suggestions from
+ *		Rusty Russell).
  * 2004-Oct	Prasanna S Panchamukhi <prasanna@in.ibm.com> and Jim Keniston
  *		kenistoj@us.ibm.com adopted from i386.
  */
@@ -35,19 +37,22 @@ struct kprobe;
 typedef u8 kprobe_opcode_t;
 #define BREAKPOINT_INSTRUCTION	0xcc
 #define RELATIVEJUMP_INSTRUCTION 0xe9
-#define MAX_INSN_SIZE 15
+#define MAX_INSN_SIZE 16
 #define MAX_STACK_SIZE 64
 #define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \
-	(((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \
+	(((unsigned long)current_thread_info()) + THREAD_SIZE \
+	 - (unsigned long)(ADDR))) \
 	? (MAX_STACK_SIZE) \
-	: (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR)))
+	: (((unsigned long)current_thread_info()) + THREAD_SIZE \
+	   - (unsigned long)(ADDR)))
 
 #define ARCH_SUPPORTS_KRETPROBES
+#define flush_insn_slot(p)	do { } while (0)
+
 extern const int kretprobe_blacklist_size;
 
+void arch_remove_kprobe(struct kprobe *p);
 void kretprobe_trampoline(void);
-extern void arch_remove_kprobe(struct kprobe *p);
-#define flush_insn_slot(p)	do { } while (0)
 
 /* Architecture specific copy of original instruction*/
 struct arch_specific_insn {
@@ -67,16 +72,16 @@ struct arch_specific_insn {
 struct prev_kprobe {
 	struct kprobe *kp;
 	unsigned long status;
-	unsigned long old_rflags;
-	unsigned long saved_rflags;
+	unsigned long old_flags;
+	unsigned long saved_flags;
 };
 
 /* per-cpu kprobe control block */
 struct kprobe_ctlblk {
 	unsigned long kprobe_status;
-	unsigned long kprobe_old_rflags;
-	unsigned long kprobe_saved_rflags;
-	unsigned long *jprobe_saved_rsp;
+	unsigned long kprobe_old_flags;
+	unsigned long kprobe_saved_flags;
+	unsigned long *jprobe_saved_sp;
 	struct pt_regs jprobe_saved_regs;
 	kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE];
 	struct prev_kprobe prev_kprobe;
@@ -91,10 +96,7 @@ static inline void restore_interrupts(struct pt_regs *regs)
 		local_irq_enable();
 }
 
-extern int post_kprobe_handler(struct pt_regs *regs);
 extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
-extern int kprobe_handler(struct pt_regs *regs);
-
 extern int kprobe_exceptions_notify(struct notifier_block *self,
 				    unsigned long val, void *data);
 #endif				/* _ASM_KPROBES_H */
-- 
cgit v1.2.3-59-g8ed1b


From d6be29b871e285d33be0e3025929e2d6bcabb0c0 Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Wed, 30 Jan 2008 13:31:21 +0100
Subject: x86: kprobes code for x86 unification

This patch unifies kprobes code.

- Unify kprobes_*.h to kprobes.h
- Unify kprobes_*.c to kprobes.c
  (Differences are separated by ifdefs)
 - Most differences are related to REX prefix and rip relatives.
 - Two inline assembly code are different.
 - One difference in kprobe_handlre()
 - One fixup exception code is different, but it will be unified
   if mm/extable_*.c are unified.
- Merge history logs into arch/x86/kernel/kprobes.c.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Jim Keniston <jkenisto@us.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile_32  |    2 +-
 arch/x86/kernel/Makefile_64  |    2 +-
 arch/x86/kernel/kprobes.c    | 1045 ++++++++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/kprobes_32.c |  848 ----------------------------------
 arch/x86/kernel/kprobes_64.c |  953 --------------------------------------
 include/asm-x86/kprobes.h    |  103 ++++-
 include/asm-x86/kprobes_32.h |  102 -----
 include/asm-x86/kprobes_64.h |  102 -----
 8 files changed, 1145 insertions(+), 2012 deletions(-)
 create mode 100644 arch/x86/kernel/kprobes.c
 delete mode 100644 arch/x86/kernel/kprobes_32.c
 delete mode 100644 arch/x86/kernel/kprobes_64.c
 delete mode 100644 include/asm-x86/kprobes_32.h
 delete mode 100644 include/asm-x86/kprobes_64.h

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index a854e23eac0b..c7a959da363a 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -35,7 +35,7 @@ obj-$(CONFIG_KEXEC)		+= machine_kexec_32.o relocate_kernel_32.o crash.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump_32.o
 obj-$(CONFIG_X86_NUMAQ)		+= numaq_32.o
 obj-$(CONFIG_X86_SUMMIT_NUMA)	+= summit_32.o
-obj-$(CONFIG_KPROBES)		+= kprobes_32.o
+obj-$(CONFIG_KPROBES)		+= kprobes.o
 obj-$(CONFIG_MODULES)		+= module_32.o
 obj-$(CONFIG_ACPI_SRAT) 	+= srat_32.o
 obj-$(CONFIG_EFI) 		+= efi.o efi_32.o efi_stub_32.o
diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index e5093dd8cf01..fbb370071239 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -34,7 +34,7 @@ obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 obj-$(CONFIG_GART_IOMMU)	+= pci-gart_64.o aperture_64.o
 obj-$(CONFIG_CALGARY_IOMMU)	+= pci-calgary_64.o tce_64.o
 obj-$(CONFIG_SWIOTLB)		+= pci-swiotlb_64.o
-obj-$(CONFIG_KPROBES)		+= kprobes_64.o
+obj-$(CONFIG_KPROBES)		+= kprobes.o
 obj-$(CONFIG_X86_PM_TIMER)	+= pmtimer_64.o
 obj-$(CONFIG_X86_VSMP)		+= vsmp_64.o
 obj-$(CONFIG_K8_NB)		+= k8.o
diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
new file mode 100644
index 000000000000..9aadd4d4a229
--- /dev/null
+++ b/arch/x86/kernel/kprobes.c
@@ -0,0 +1,1045 @@
+/*
+ *  Kernel Probes (KProbes)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2002, 2004
+ *
+ * 2002-Oct	Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel
+ *		Probes initial implementation ( includes contributions from
+ *		Rusty Russell).
+ * 2004-July	Suparna Bhattacharya <suparna@in.ibm.com> added jumper probes
+ *		interface to access function arguments.
+ * 2004-Oct	Jim Keniston <jkenisto@us.ibm.com> and Prasanna S Panchamukhi
+ *		<prasanna@in.ibm.com> adapted for x86_64 from i386.
+ * 2005-Mar	Roland McGrath <roland@redhat.com>
+ *		Fixed to handle %rip-relative addressing mode correctly.
+ * 2005-May	Hien Nguyen <hien@us.ibm.com>, Jim Keniston
+ *		<jkenisto@us.ibm.com> and Prasanna S Panchamukhi
+ *		<prasanna@in.ibm.com> added function-return probes.
+ * 2005-May	Rusty Lynch <rusty.lynch@intel.com>
+ * 		Added function return probes functionality
+ * 2006-Feb	Masami Hiramatsu <hiramatu@sdl.hitachi.co.jp> added
+ * 		kprobe-booster and kretprobe-booster for i386.
+ * 2007-Dec	Masami Hiramatsu <mhiramat@redhat.com> added kprobe-booster
+ * 		and kretprobe-booster for x86-64
+ * 2007-Dec	Masami Hiramatsu <mhiramat@redhat.com>, Arjan van de Ven
+ * 		<arjan@infradead.org> and Jim Keniston <jkenisto@us.ibm.com>
+ * 		unified x86 kprobes code.
+ */
+
+#include <linux/kprobes.h>
+#include <linux/ptrace.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/preempt.h>
+#include <linux/module.h>
+#include <linux/kdebug.h>
+
+#include <asm/cacheflush.h>
+#include <asm/desc.h>
+#include <asm/pgtable.h>
+#include <asm/uaccess.h>
+#include <asm/alternative.h>
+
+void jprobe_return_end(void);
+
+DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
+DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
+
+#ifdef CONFIG_X86_64
+#define stack_addr(regs) ((unsigned long *)regs->sp)
+#else
+/*
+ * "&regs->sp" looks wrong, but it's correct for x86_32.  x86_32 CPUs
+ * don't save the ss and esp registers if the CPU is already in kernel
+ * mode when it traps.  So for kprobes, regs->sp and regs->ss are not
+ * the [nonexistent] saved stack pointer and ss register, but rather
+ * the top 8 bytes of the pre-int3 stack.  So &regs->sp happens to
+ * point to the top of the pre-int3 stack.
+ */
+#define stack_addr(regs) ((unsigned long *)&regs->sp)
+#endif
+
+#define W(row, b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, ba, bb, bc, bd, be, bf)\
+	(((b0##UL << 0x0)|(b1##UL << 0x1)|(b2##UL << 0x2)|(b3##UL << 0x3) |   \
+	  (b4##UL << 0x4)|(b5##UL << 0x5)|(b6##UL << 0x6)|(b7##UL << 0x7) |   \
+	  (b8##UL << 0x8)|(b9##UL << 0x9)|(ba##UL << 0xa)|(bb##UL << 0xb) |   \
+	  (bc##UL << 0xc)|(bd##UL << 0xd)|(be##UL << 0xe)|(bf##UL << 0xf))    \
+	 << (row % 32))
+	/*
+	 * Undefined/reserved opcodes, conditional jump, Opcode Extension
+	 * Groups, and some special opcodes can not boost.
+	 */
+static const u32 twobyte_is_boostable[256 / 32] = {
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+	/*      ----------------------------------------------          */
+	W(0x00, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0) | /* 00 */
+	W(0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 10 */
+	W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 20 */
+	W(0x30, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 30 */
+	W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 40 */
+	W(0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 50 */
+	W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1) | /* 60 */
+	W(0x70, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1) , /* 70 */
+	W(0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 80 */
+	W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 90 */
+	W(0xa0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) | /* a0 */
+	W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1) , /* b0 */
+	W(0xc0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1) | /* c0 */
+	W(0xd0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) , /* d0 */
+	W(0xe0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) | /* e0 */
+	W(0xf0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0)   /* f0 */
+	/*      -----------------------------------------------         */
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+};
+static const u32 onebyte_has_modrm[256 / 32] = {
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+	/*      -----------------------------------------------         */
+	W(0x00, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* 00 */
+	W(0x10, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) , /* 10 */
+	W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* 20 */
+	W(0x30, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) , /* 30 */
+	W(0x40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 40 */
+	W(0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 50 */
+	W(0x60, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0) | /* 60 */
+	W(0x70, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 70 */
+	W(0x80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 80 */
+	W(0x90, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 90 */
+	W(0xa0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* a0 */
+	W(0xb0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* b0 */
+	W(0xc0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0) | /* c0 */
+	W(0xd0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1) , /* d0 */
+	W(0xe0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* e0 */
+	W(0xf0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1)   /* f0 */
+	/*      -----------------------------------------------         */
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+};
+static const u32 twobyte_has_modrm[256 / 32] = {
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+	/*      -----------------------------------------------         */
+	W(0x00, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1) | /* 0f */
+	W(0x10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0) , /* 1f */
+	W(0x20, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1) | /* 2f */
+	W(0x30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 3f */
+	W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 4f */
+	W(0x50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 5f */
+	W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 6f */
+	W(0x70, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1) , /* 7f */
+	W(0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 8f */
+	W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 9f */
+	W(0xa0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1) | /* af */
+	W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1) , /* bf */
+	W(0xc0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0) | /* cf */
+	W(0xd0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* df */
+	W(0xe0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* ef */
+	W(0xf0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0)   /* ff */
+	/*      -----------------------------------------------         */
+	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
+};
+#undef W
+
+struct kretprobe_blackpoint kretprobe_blacklist[] = {
+	{"__switch_to", }, /* This function switches only current task, but
+			      doesn't switch kernel stack.*/
+	{NULL, NULL}	/* Terminator */
+};
+const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
+
+/* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
+static __always_inline void set_jmp_op(void *from, void *to)
+{
+	struct __arch_jmp_op {
+		char op;
+		s32 raddr;
+	} __attribute__((packed)) * jop;
+	jop = (struct __arch_jmp_op *)from;
+	jop->raddr = (s32)((long)(to) - ((long)(from) + 5));
+	jop->op = RELATIVEJUMP_INSTRUCTION;
+}
+
+/*
+ * Returns non-zero if opcode is boostable.
+ * RIP relative instructions are adjusted at copying time in 64 bits mode
+ */
+static __always_inline int can_boost(kprobe_opcode_t *opcodes)
+{
+	kprobe_opcode_t opcode;
+	kprobe_opcode_t *orig_opcodes = opcodes;
+
+retry:
+	if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1)
+		return 0;
+	opcode = *(opcodes++);
+
+	/* 2nd-byte opcode */
+	if (opcode == 0x0f) {
+		if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1)
+			return 0;
+		return test_bit(*opcodes,
+				(unsigned long *)twobyte_is_boostable);
+	}
+
+	switch (opcode & 0xf0) {
+#ifdef CONFIG_X86_64
+	case 0x40:
+		goto retry; /* REX prefix is boostable */
+#endif
+	case 0x60:
+		if (0x63 < opcode && opcode < 0x67)
+			goto retry; /* prefixes */
+		/* can't boost Address-size override and bound */
+		return (opcode != 0x62 && opcode != 0x67);
+	case 0x70:
+		return 0; /* can't boost conditional jump */
+	case 0xc0:
+		/* can't boost software-interruptions */
+		return (0xc1 < opcode && opcode < 0xcc) || opcode == 0xcf;
+	case 0xd0:
+		/* can boost AA* and XLAT */
+		return (opcode == 0xd4 || opcode == 0xd5 || opcode == 0xd7);
+	case 0xe0:
+		/* can boost in/out and absolute jmps */
+		return ((opcode & 0x04) || opcode == 0xea);
+	case 0xf0:
+		if ((opcode & 0x0c) == 0 && opcode != 0xf1)
+			goto retry; /* lock/rep(ne) prefix */
+		/* clear and set flags are boostable */
+		return (opcode == 0xf5 || (0xf7 < opcode && opcode < 0xfe));
+	default:
+		/* segment override prefixes are boostable */
+		if (opcode == 0x26 || opcode == 0x36 || opcode == 0x3e)
+			goto retry; /* prefixes */
+		/* CS override prefix and call are not boostable */
+		return (opcode != 0x2e && opcode != 0x9a);
+	}
+}
+
+/*
+ * Returns non-zero if opcode modifies the interrupt flag.
+ */
+static int __kprobes is_IF_modifier(kprobe_opcode_t *insn)
+{
+	switch (*insn) {
+	case 0xfa:		/* cli */
+	case 0xfb:		/* sti */
+	case 0xcf:		/* iret/iretd */
+	case 0x9d:		/* popf/popfd */
+		return 1;
+	}
+#ifdef CONFIG_X86_64
+	/*
+	 * on 64 bit x86, 0x40-0x4f are prefixes so we need to look
+	 * at the next byte instead.. but of course not recurse infinitely
+	 */
+	if (*insn  >= 0x40 && *insn <= 0x4f)
+		return is_IF_modifier(++insn);
+#endif
+	return 0;
+}
+
+#ifdef CONFIG_X86_64
+/*
+ * Adjust the displacement if the instruction uses the %rip-relative
+ * addressing mode.
+ * If it does, Return the address of the 32-bit displacement word.
+ * If not, return null.
+ */
+static void __kprobes fix_riprel(struct kprobe *p)
+{
+	u8 *insn = p->ainsn.insn;
+	s64 disp;
+	int need_modrm;
+
+	/* Skip legacy instruction prefixes.  */
+	while (1) {
+		switch (*insn) {
+		case 0x66:
+		case 0x67:
+		case 0x2e:
+		case 0x3e:
+		case 0x26:
+		case 0x64:
+		case 0x65:
+		case 0x36:
+		case 0xf0:
+		case 0xf3:
+		case 0xf2:
+			++insn;
+			continue;
+		}
+		break;
+	}
+
+	/* Skip REX instruction prefix.  */
+	if ((*insn & 0xf0) == 0x40)
+		++insn;
+
+	if (*insn == 0x0f) {
+		/* Two-byte opcode.  */
+		++insn;
+		need_modrm = test_bit(*insn,
+				      (unsigned long *)twobyte_has_modrm);
+	} else
+		/* One-byte opcode.  */
+		need_modrm = test_bit(*insn,
+				      (unsigned long *)onebyte_has_modrm);
+
+	if (need_modrm) {
+		u8 modrm = *++insn;
+		if ((modrm & 0xc7) == 0x05) {
+			/* %rip+disp32 addressing mode */
+			/* Displacement follows ModRM byte.  */
+			++insn;
+			/*
+			 * The copied instruction uses the %rip-relative
+			 * addressing mode.  Adjust the displacement for the
+			 * difference between the original location of this
+			 * instruction and the location of the copy that will
+			 * actually be run.  The tricky bit here is making sure
+			 * that the sign extension happens correctly in this
+			 * calculation, since we need a signed 32-bit result to
+			 * be sign-extended to 64 bits when it's added to the
+			 * %rip value and yield the same 64-bit result that the
+			 * sign-extension of the original signed 32-bit
+			 * displacement would have given.
+			 */
+			disp = (u8 *) p->addr + *((s32 *) insn) -
+			       (u8 *) p->ainsn.insn;
+			BUG_ON((s64) (s32) disp != disp); /* Sanity check.  */
+			*(s32 *)insn = (s32) disp;
+		}
+	}
+}
+#endif
+
+static void __kprobes arch_copy_kprobe(struct kprobe *p)
+{
+	memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
+#ifdef CONFIG_X86_64
+	fix_riprel(p);
+#endif
+	if (can_boost(p->addr))
+		p->ainsn.boostable = 0;
+	else
+		p->ainsn.boostable = -1;
+
+	p->opcode = *p->addr;
+}
+
+int __kprobes arch_prepare_kprobe(struct kprobe *p)
+{
+	/* insn: must be on special executable page on x86. */
+	p->ainsn.insn = get_insn_slot();
+	if (!p->ainsn.insn)
+		return -ENOMEM;
+	arch_copy_kprobe(p);
+	return 0;
+}
+
+void __kprobes arch_arm_kprobe(struct kprobe *p)
+{
+	text_poke(p->addr, ((unsigned char []){BREAKPOINT_INSTRUCTION}), 1);
+}
+
+void __kprobes arch_disarm_kprobe(struct kprobe *p)
+{
+	text_poke(p->addr, &p->opcode, 1);
+}
+
+void __kprobes arch_remove_kprobe(struct kprobe *p)
+{
+	mutex_lock(&kprobe_mutex);
+	free_insn_slot(p->ainsn.insn, (p->ainsn.boostable == 1));
+	mutex_unlock(&kprobe_mutex);
+}
+
+static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
+{
+	kcb->prev_kprobe.kp = kprobe_running();
+	kcb->prev_kprobe.status = kcb->kprobe_status;
+	kcb->prev_kprobe.old_flags = kcb->kprobe_old_flags;
+	kcb->prev_kprobe.saved_flags = kcb->kprobe_saved_flags;
+}
+
+static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
+{
+	__get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp;
+	kcb->kprobe_status = kcb->prev_kprobe.status;
+	kcb->kprobe_old_flags = kcb->prev_kprobe.old_flags;
+	kcb->kprobe_saved_flags = kcb->prev_kprobe.saved_flags;
+}
+
+static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
+				struct kprobe_ctlblk *kcb)
+{
+	__get_cpu_var(current_kprobe) = p;
+	kcb->kprobe_saved_flags = kcb->kprobe_old_flags
+		= (regs->flags & (TF_MASK | IF_MASK));
+	if (is_IF_modifier(p->ainsn.insn))
+		kcb->kprobe_saved_flags &= ~IF_MASK;
+}
+
+static __always_inline void clear_btf(void)
+{
+	if (test_thread_flag(TIF_DEBUGCTLMSR))
+		wrmsr(MSR_IA32_DEBUGCTLMSR, 0, 0);
+}
+
+static __always_inline void restore_btf(void)
+{
+	if (test_thread_flag(TIF_DEBUGCTLMSR))
+		wrmsr(MSR_IA32_DEBUGCTLMSR, current->thread.debugctlmsr, 0);
+}
+
+static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
+{
+	clear_btf();
+	regs->flags |= TF_MASK;
+	regs->flags &= ~IF_MASK;
+	/*single step inline if the instruction is an int3*/
+	if (p->opcode == BREAKPOINT_INSTRUCTION)
+		regs->ip = (unsigned long)p->addr;
+	else
+		regs->ip = (unsigned long)p->ainsn.insn;
+}
+
+/* Called with kretprobe_lock held */
+void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
+				      struct pt_regs *regs)
+{
+	unsigned long *sara = stack_addr(regs);
+
+	ri->ret_addr = (kprobe_opcode_t *) *sara;
+
+	/* Replace the return addr with trampoline addr */
+	*sara = (unsigned long) &kretprobe_trampoline;
+}
+
+/*
+ * Interrupts are disabled on entry as trap3 is an interrupt gate and they
+ * remain disabled thorough out this function.
+ */
+static int __kprobes kprobe_handler(struct pt_regs *regs)
+{
+	struct kprobe *p;
+	int ret = 0;
+	kprobe_opcode_t *addr;
+	struct kprobe_ctlblk *kcb;
+
+	addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
+
+	/*
+	 * We don't want to be preempted for the entire
+	 * duration of kprobe processing
+	 */
+	preempt_disable();
+	kcb = get_kprobe_ctlblk();
+
+	/* Check we're not actually recursing */
+	if (kprobe_running()) {
+		p = get_kprobe(addr);
+		if (p) {
+			if (kcb->kprobe_status == KPROBE_HIT_SS &&
+				*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
+				regs->flags &= ~TF_MASK;
+				regs->flags |= kcb->kprobe_saved_flags;
+				goto no_kprobe;
+#ifdef CONFIG_X86_64
+			} else if (kcb->kprobe_status == KPROBE_HIT_SSDONE) {
+				/* TODO: Provide re-entrancy from
+				 * post_kprobes_handler() and avoid exception
+				 * stack corruption while single-stepping on
+				 * the instruction of the new probe.
+				 */
+				arch_disarm_kprobe(p);
+				regs->ip = (unsigned long)p->addr;
+				reset_current_kprobe();
+				return 1;
+#endif
+			}
+			/* We have reentered the kprobe_handler(), since
+			 * another probe was hit while within the handler.
+			 * We here save the original kprobes variables and
+			 * just single step on the instruction of the new probe
+			 * without calling any user handlers.
+			 */
+			save_previous_kprobe(kcb);
+			set_current_kprobe(p, regs, kcb);
+			kprobes_inc_nmissed_count(p);
+			prepare_singlestep(p, regs);
+			kcb->kprobe_status = KPROBE_REENTER;
+			return 1;
+		} else {
+			if (*addr != BREAKPOINT_INSTRUCTION) {
+			/* The breakpoint instruction was removed by
+			 * another cpu right after we hit, no further
+			 * handling of this interrupt is appropriate
+			 */
+				regs->ip = (unsigned long)addr;
+				ret = 1;
+				goto no_kprobe;
+			}
+			p = __get_cpu_var(current_kprobe);
+			if (p->break_handler && p->break_handler(p, regs))
+				goto ss_probe;
+		}
+		goto no_kprobe;
+	}
+
+	p = get_kprobe(addr);
+	if (!p) {
+		if (*addr != BREAKPOINT_INSTRUCTION) {
+			/*
+			 * The breakpoint instruction was removed right
+			 * after we hit it.  Another cpu has removed
+			 * either a probepoint or a debugger breakpoint
+			 * at this address.  In either case, no further
+			 * handling of this interrupt is appropriate.
+			 * Back up over the (now missing) int3 and run
+			 * the original instruction.
+			 */
+			regs->ip = (unsigned long)addr;
+			ret = 1;
+		}
+		/* Not one of ours: let kernel handle it */
+		goto no_kprobe;
+	}
+
+	set_current_kprobe(p, regs, kcb);
+	kcb->kprobe_status = KPROBE_HIT_ACTIVE;
+
+	if (p->pre_handler && p->pre_handler(p, regs))
+		/* handler has already set things up, so skip ss setup */
+		return 1;
+
+ss_probe:
+#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PM)
+	if (p->ainsn.boostable == 1 && !p->post_handler) {
+		/* Boost up -- we can execute copied instructions directly */
+		reset_current_kprobe();
+		regs->ip = (unsigned long)p->ainsn.insn;
+		preempt_enable_no_resched();
+		return 1;
+	}
+#endif
+	prepare_singlestep(p, regs);
+	kcb->kprobe_status = KPROBE_HIT_SS;
+	return 1;
+
+no_kprobe:
+	preempt_enable_no_resched();
+	return ret;
+}
+
+/*
+ * When a retprobed function returns, this code saves registers and
+ * calls trampoline_handler() runs, which calls the kretprobe's handler.
+ */
+ void __kprobes kretprobe_trampoline_holder(void)
+ {
+	asm volatile (
+			".global kretprobe_trampoline\n"
+			"kretprobe_trampoline: \n"
+#ifdef CONFIG_X86_64
+			/* We don't bother saving the ss register */
+			"	pushq %rsp\n"
+			"	pushfq\n"
+			/*
+			 * Skip cs, ip, orig_ax.
+			 * trampoline_handler() will plug in these values
+			 */
+			"	subq $24, %rsp\n"
+			"	pushq %rdi\n"
+			"	pushq %rsi\n"
+			"	pushq %rdx\n"
+			"	pushq %rcx\n"
+			"	pushq %rax\n"
+			"	pushq %r8\n"
+			"	pushq %r9\n"
+			"	pushq %r10\n"
+			"	pushq %r11\n"
+			"	pushq %rbx\n"
+			"	pushq %rbp\n"
+			"	pushq %r12\n"
+			"	pushq %r13\n"
+			"	pushq %r14\n"
+			"	pushq %r15\n"
+			"	movq %rsp, %rdi\n"
+			"	call trampoline_handler\n"
+			/* Replace saved sp with true return address. */
+			"	movq %rax, 152(%rsp)\n"
+			"	popq %r15\n"
+			"	popq %r14\n"
+			"	popq %r13\n"
+			"	popq %r12\n"
+			"	popq %rbp\n"
+			"	popq %rbx\n"
+			"	popq %r11\n"
+			"	popq %r10\n"
+			"	popq %r9\n"
+			"	popq %r8\n"
+			"	popq %rax\n"
+			"	popq %rcx\n"
+			"	popq %rdx\n"
+			"	popq %rsi\n"
+			"	popq %rdi\n"
+			/* Skip orig_ax, ip, cs */
+			"	addq $24, %rsp\n"
+			"	popfq\n"
+#else
+			"	pushf\n"
+			/*
+			 * Skip cs, ip, orig_ax.
+			 * trampoline_handler() will plug in these values
+			 */
+			"	subl $12, %esp\n"
+			"	pushl %fs\n"
+			"	pushl %ds\n"
+			"	pushl %es\n"
+			"	pushl %eax\n"
+			"	pushl %ebp\n"
+			"	pushl %edi\n"
+			"	pushl %esi\n"
+			"	pushl %edx\n"
+			"	pushl %ecx\n"
+			"	pushl %ebx\n"
+			"	movl %esp, %eax\n"
+			"	call trampoline_handler\n"
+			/* Move flags to cs */
+			"	movl 52(%esp), %edx\n"
+			"	movl %edx, 48(%esp)\n"
+			/* Replace saved flags with true return address. */
+			"	movl %eax, 52(%esp)\n"
+			"	popl %ebx\n"
+			"	popl %ecx\n"
+			"	popl %edx\n"
+			"	popl %esi\n"
+			"	popl %edi\n"
+			"	popl %ebp\n"
+			"	popl %eax\n"
+			/* Skip ip, orig_ax, es, ds, fs */
+			"	addl $20, %esp\n"
+			"	popf\n"
+#endif
+			"	ret\n");
+ }
+
+/*
+ * Called from kretprobe_trampoline
+ */
+void * __kprobes trampoline_handler(struct pt_regs *regs)
+{
+	struct kretprobe_instance *ri = NULL;
+	struct hlist_head *head, empty_rp;
+	struct hlist_node *node, *tmp;
+	unsigned long flags, orig_ret_address = 0;
+	unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline;
+
+	INIT_HLIST_HEAD(&empty_rp);
+	spin_lock_irqsave(&kretprobe_lock, flags);
+	head = kretprobe_inst_table_head(current);
+	/* fixup registers */
+#ifdef CONFIG_X86_64
+	regs->cs = __KERNEL_CS;
+#else
+	regs->cs = __KERNEL_CS | get_kernel_rpl();
+#endif
+	regs->ip = trampoline_address;
+	regs->orig_ax = ~0UL;
+
+	/*
+	 * It is possible to have multiple instances associated with a given
+	 * task either because multiple functions in the call path have
+	 * return probes installed on them, and/or more then one
+	 * return probe was registered for a target function.
+	 *
+	 * We can handle this because:
+	 *     - instances are always pushed into the head of the list
+	 *     - when multiple return probes are registered for the same
+	 *	 function, the (chronologically) first instance's ret_addr
+	 *	 will be the real return address, and all the rest will
+	 *	 point to kretprobe_trampoline.
+	 */
+	hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
+		if (ri->task != current)
+			/* another task is sharing our hash bucket */
+			continue;
+
+		if (ri->rp && ri->rp->handler) {
+			__get_cpu_var(current_kprobe) = &ri->rp->kp;
+			get_kprobe_ctlblk()->kprobe_status = KPROBE_HIT_ACTIVE;
+			ri->rp->handler(ri, regs);
+			__get_cpu_var(current_kprobe) = NULL;
+		}
+
+		orig_ret_address = (unsigned long)ri->ret_addr;
+		recycle_rp_inst(ri, &empty_rp);
+
+		if (orig_ret_address != trampoline_address)
+			/*
+			 * This is the real return address. Any other
+			 * instances associated with this task are for
+			 * other calls deeper on the call stack
+			 */
+			break;
+	}
+
+	kretprobe_assert(ri, orig_ret_address, trampoline_address);
+
+	spin_unlock_irqrestore(&kretprobe_lock, flags);
+
+	hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
+		hlist_del(&ri->hlist);
+		kfree(ri);
+	}
+	return (void *)orig_ret_address;
+}
+
+/*
+ * Called after single-stepping.  p->addr is the address of the
+ * instruction whose first byte has been replaced by the "int 3"
+ * instruction.  To avoid the SMP problems that can occur when we
+ * temporarily put back the original opcode to single-step, we
+ * single-stepped a copy of the instruction.  The address of this
+ * copy is p->ainsn.insn.
+ *
+ * This function prepares to return from the post-single-step
+ * interrupt.  We have to fix up the stack as follows:
+ *
+ * 0) Except in the case of absolute or indirect jump or call instructions,
+ * the new ip is relative to the copied instruction.  We need to make
+ * it relative to the original instruction.
+ *
+ * 1) If the single-stepped instruction was pushfl, then the TF and IF
+ * flags are set in the just-pushed flags, and may need to be cleared.
+ *
+ * 2) If the single-stepped instruction was a call, the return address
+ * that is atop the stack is the address following the copied instruction.
+ * We need to make it the address following the original instruction.
+ *
+ * If this is the first time we've single-stepped the instruction at
+ * this probepoint, and the instruction is boostable, boost it: add a
+ * jump instruction after the copied instruction, that jumps to the next
+ * instruction after the probepoint.
+ */
+static void __kprobes resume_execution(struct kprobe *p,
+		struct pt_regs *regs, struct kprobe_ctlblk *kcb)
+{
+	unsigned long *tos = stack_addr(regs);
+	unsigned long copy_ip = (unsigned long)p->ainsn.insn;
+	unsigned long orig_ip = (unsigned long)p->addr;
+	kprobe_opcode_t *insn = p->ainsn.insn;
+
+#ifdef CONFIG_X86_64
+	/*skip the REX prefix*/
+	if (*insn >= 0x40 && *insn <= 0x4f)
+		insn++;
+#endif
+
+	regs->flags &= ~TF_MASK;
+	switch (*insn) {
+	case 0x9c:	/* pushfl */
+		*tos &= ~(TF_MASK | IF_MASK);
+		*tos |= kcb->kprobe_old_flags;
+		break;
+	case 0xc2:	/* iret/ret/lret */
+	case 0xc3:
+	case 0xca:
+	case 0xcb:
+	case 0xcf:
+	case 0xea:	/* jmp absolute -- ip is correct */
+		/* ip is already adjusted, no more changes required */
+		p->ainsn.boostable = 1;
+		goto no_change;
+	case 0xe8:	/* call relative - Fix return addr */
+		*tos = orig_ip + (*tos - copy_ip);
+		break;
+#ifndef CONFIG_X86_64
+	case 0x9a:	/* call absolute -- same as call absolute, indirect */
+		*tos = orig_ip + (*tos - copy_ip);
+		goto no_change;
+#endif
+	case 0xff:
+		if ((insn[1] & 0x30) == 0x10) {
+			/*
+			 * call absolute, indirect
+			 * Fix return addr; ip is correct.
+			 * But this is not boostable
+			 */
+			*tos = orig_ip + (*tos - copy_ip);
+			goto no_change;
+		} else if (((insn[1] & 0x31) == 0x20) ||
+			   ((insn[1] & 0x31) == 0x21)) {
+			/*
+			 * jmp near and far, absolute indirect
+			 * ip is correct. And this is boostable
+			 */
+			p->ainsn.boostable = 1;
+			goto no_change;
+		}
+	default:
+		break;
+	}
+
+	if (p->ainsn.boostable == 0) {
+		if ((regs->ip > copy_ip) &&
+		    (regs->ip - copy_ip) + 5 < MAX_INSN_SIZE) {
+			/*
+			 * These instructions can be executed directly if it
+			 * jumps back to correct address.
+			 */
+			set_jmp_op((void *)regs->ip,
+				   (void *)orig_ip + (regs->ip - copy_ip));
+			p->ainsn.boostable = 1;
+		} else {
+			p->ainsn.boostable = -1;
+		}
+	}
+
+	regs->ip += orig_ip - copy_ip;
+
+no_change:
+	restore_btf();
+
+	return;
+}
+
+/*
+ * Interrupts are disabled on entry as trap1 is an interrupt gate and they
+ * remain disabled thoroughout this function.
+ */
+static int __kprobes post_kprobe_handler(struct pt_regs *regs)
+{
+	struct kprobe *cur = kprobe_running();
+	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
+
+	if (!cur)
+		return 0;
+
+	if ((kcb->kprobe_status != KPROBE_REENTER) && cur->post_handler) {
+		kcb->kprobe_status = KPROBE_HIT_SSDONE;
+		cur->post_handler(cur, regs, 0);
+	}
+
+	resume_execution(cur, regs, kcb);
+	regs->flags |= kcb->kprobe_saved_flags;
+	trace_hardirqs_fixup_flags(regs->flags);
+
+	/* Restore back the original saved kprobes variables and continue. */
+	if (kcb->kprobe_status == KPROBE_REENTER) {
+		restore_previous_kprobe(kcb);
+		goto out;
+	}
+	reset_current_kprobe();
+out:
+	preempt_enable_no_resched();
+
+	/*
+	 * if somebody else is singlestepping across a probe point, flags
+	 * will have TF set, in which case, continue the remaining processing
+	 * of do_debug, as if this is not a probe hit.
+	 */
+	if (regs->flags & TF_MASK)
+		return 0;
+
+	return 1;
+}
+
+int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
+{
+	struct kprobe *cur = kprobe_running();
+	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
+
+	switch (kcb->kprobe_status) {
+	case KPROBE_HIT_SS:
+	case KPROBE_REENTER:
+		/*
+		 * We are here because the instruction being single
+		 * stepped caused a page fault. We reset the current
+		 * kprobe and the ip points back to the probe address
+		 * and allow the page fault handler to continue as a
+		 * normal page fault.
+		 */
+		regs->ip = (unsigned long)cur->addr;
+		regs->flags |= kcb->kprobe_old_flags;
+		if (kcb->kprobe_status == KPROBE_REENTER)
+			restore_previous_kprobe(kcb);
+		else
+			reset_current_kprobe();
+		preempt_enable_no_resched();
+		break;
+	case KPROBE_HIT_ACTIVE:
+	case KPROBE_HIT_SSDONE:
+		/*
+		 * We increment the nmissed count for accounting,
+		 * we can also use npre/npostfault count for accounting
+		 * these specific fault cases.
+		 */
+		kprobes_inc_nmissed_count(cur);
+
+		/*
+		 * We come here because instructions in the pre/post
+		 * handler caused the page_fault, this could happen
+		 * if handler tries to access user space by
+		 * copy_from_user(), get_user() etc. Let the
+		 * user-specified handler try to fix it first.
+		 */
+		if (cur->fault_handler && cur->fault_handler(cur, regs, trapnr))
+			return 1;
+
+		/*
+		 * In case the user-specified fault handler returned
+		 * zero, try to fix up.
+		 */
+#ifdef CONFIG_X86_64
+		{
+			const struct exception_table_entry *fixup;
+			fixup = search_exception_tables(regs->ip);
+			if (fixup) {
+				regs->ip = fixup->fixup;
+				return 1;
+			}
+		}
+#else
+		if (fixup_exception(regs))
+			return 1;
+#endif
+		/*
+		 * fixup routine could not handle it,
+		 * Let do_page_fault() fix it.
+		 */
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+/*
+ * Wrapper routine for handling exceptions.
+ */
+int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
+				       unsigned long val, void *data)
+{
+	struct die_args *args = (struct die_args *)data;
+	int ret = NOTIFY_DONE;
+
+	if (args->regs && user_mode_vm(args->regs))
+		return ret;
+
+	switch (val) {
+	case DIE_INT3:
+		if (kprobe_handler(args->regs))
+			ret = NOTIFY_STOP;
+		break;
+	case DIE_DEBUG:
+		if (post_kprobe_handler(args->regs))
+			ret = NOTIFY_STOP;
+		break;
+	case DIE_GPF:
+		/* kprobe_running() needs smp_processor_id() */
+		preempt_disable();
+		if (kprobe_running() &&
+		    kprobe_fault_handler(args->regs, args->trapnr))
+			ret = NOTIFY_STOP;
+		preempt_enable();
+		break;
+	default:
+		break;
+	}
+	return ret;
+}
+
+int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
+{
+	struct jprobe *jp = container_of(p, struct jprobe, kp);
+	unsigned long addr;
+	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
+
+	kcb->jprobe_saved_regs = *regs;
+	kcb->jprobe_saved_sp = stack_addr(regs);
+	addr = (unsigned long)(kcb->jprobe_saved_sp);
+
+	/*
+	 * As Linus pointed out, gcc assumes that the callee
+	 * owns the argument space and could overwrite it, e.g.
+	 * tailcall optimization. So, to be absolutely safe
+	 * we also save and restore enough stack bytes to cover
+	 * the argument area.
+	 */
+	memcpy(kcb->jprobes_stack, (kprobe_opcode_t *)addr,
+	       MIN_STACK_SIZE(addr));
+	regs->flags &= ~IF_MASK;
+	trace_hardirqs_off();
+	regs->ip = (unsigned long)(jp->entry);
+	return 1;
+}
+
+void __kprobes jprobe_return(void)
+{
+	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
+
+	asm volatile (
+#ifdef CONFIG_X86_64
+			"       xchg   %%rbx,%%rsp	\n"
+#else
+			"       xchgl   %%ebx,%%esp	\n"
+#endif
+			"       int3			\n"
+			"       .globl jprobe_return_end\n"
+			"       jprobe_return_end:	\n"
+			"       nop			\n"::"b"
+			(kcb->jprobe_saved_sp):"memory");
+}
+
+int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
+{
+	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
+	u8 *addr = (u8 *) (regs->ip - 1);
+	struct jprobe *jp = container_of(p, struct jprobe, kp);
+
+	if ((addr > (u8 *) jprobe_return) &&
+	    (addr < (u8 *) jprobe_return_end)) {
+		if (stack_addr(regs) != kcb->jprobe_saved_sp) {
+			struct pt_regs *saved_regs = &kcb->jprobe_saved_regs;
+			printk(KERN_ERR
+			       "current sp %p does not match saved sp %p\n",
+			       stack_addr(regs), kcb->jprobe_saved_sp);
+			printk(KERN_ERR "Saved registers for jprobe %p\n", jp);
+			show_registers(saved_regs);
+			printk(KERN_ERR "Current registers\n");
+			show_registers(regs);
+			BUG();
+		}
+		*regs = kcb->jprobe_saved_regs;
+		memcpy((kprobe_opcode_t *)(kcb->jprobe_saved_sp),
+		       kcb->jprobes_stack,
+		       MIN_STACK_SIZE(kcb->jprobe_saved_sp));
+		preempt_enable_no_resched();
+		return 1;
+	}
+	return 0;
+}
+
+int __init arch_init_kprobes(void)
+{
+	return 0;
+}
+
+int __kprobes arch_trampoline_kprobe(struct kprobe *p)
+{
+	return 0;
+}
diff --git a/arch/x86/kernel/kprobes_32.c b/arch/x86/kernel/kprobes_32.c
deleted file mode 100644
index 8e06431d8b03..000000000000
--- a/arch/x86/kernel/kprobes_32.c
+++ /dev/null
@@ -1,848 +0,0 @@
-/*
- *  Kernel Probes (KProbes)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (C) IBM Corporation, 2002, 2004
- *
- * 2002-Oct	Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel
- *		Probes initial implementation ( includes contributions from
- *		Rusty Russell).
- * 2004-July	Suparna Bhattacharya <suparna@in.ibm.com> added jumper probes
- *		interface to access function arguments.
- * 2005-May	Hien Nguyen <hien@us.ibm.com>, Jim Keniston
- *		<jkenisto@us.ibm.com> and Prasanna S Panchamukhi
- *		<prasanna@in.ibm.com> added function-return probes.
- */
-
-#include <linux/kprobes.h>
-#include <linux/ptrace.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/preempt.h>
-#include <linux/module.h>
-#include <linux/kdebug.h>
-
-#include <asm/cacheflush.h>
-#include <asm/desc.h>
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-#include <asm/alternative.h>
-
-void jprobe_return_end(void);
-
-DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
-DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
-
-/*
- * "&regs->sp" looks wrong, but it's correct for x86_32.  x86_32 CPUs
- * don't save the ss and esp registers if the CPU is already in kernel
- * mode when it traps.  So for kprobes, regs->sp and regs->ss are not
- * the [nonexistent] saved stack pointer and ss register, but rather
- * the top 8 bytes of the pre-int3 stack.  So &regs->sp happens to
- * point to the top of the pre-int3 stack.
- */
-#define stack_addr(regs) ((unsigned long *)&regs->sp)
-
-#define W(row, b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, ba, bb, bc, bd, be, bf)\
-	(((b0##UL << 0x0)|(b1##UL << 0x1)|(b2##UL << 0x2)|(b3##UL << 0x3) |   \
-	  (b4##UL << 0x4)|(b5##UL << 0x5)|(b6##UL << 0x6)|(b7##UL << 0x7) |   \
-	  (b8##UL << 0x8)|(b9##UL << 0x9)|(ba##UL << 0xa)|(bb##UL << 0xb) |   \
-	  (bc##UL << 0xc)|(bd##UL << 0xd)|(be##UL << 0xe)|(bf##UL << 0xf))    \
-	 << (row % 32))
-	/*
-	 * Undefined/reserved opcodes, conditional jump, Opcode Extension
-	 * Groups, and some special opcodes can not boost.
-	 */
-static const u32 twobyte_is_boostable[256 / 32] = {
-	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
-	/*      ----------------------------------------------          */
-	W(0x00, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0) | /* 00 */
-	W(0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 10 */
-	W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 20 */
-	W(0x30, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 30 */
-	W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 40 */
-	W(0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 50 */
-	W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1) | /* 60 */
-	W(0x70, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1) , /* 70 */
-	W(0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 80 */
-	W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 90 */
-	W(0xa0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) | /* a0 */
-	W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1) , /* b0 */
-	W(0xc0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1) | /* c0 */
-	W(0xd0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) , /* d0 */
-	W(0xe0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) | /* e0 */
-	W(0xf0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0)   /* f0 */
-	/*      -----------------------------------------------         */
-	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
-};
-static const u32 onebyte_has_modrm[256 / 32] = {
-	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
-	/*      -----------------------------------------------         */
-	W(0x00, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* 00 */
-	W(0x10, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) , /* 10 */
-	W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* 20 */
-	W(0x30, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) , /* 30 */
-	W(0x40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 40 */
-	W(0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 50 */
-	W(0x60, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0) | /* 60 */
-	W(0x70, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 70 */
-	W(0x80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 80 */
-	W(0x90, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 90 */
-	W(0xa0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* a0 */
-	W(0xb0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* b0 */
-	W(0xc0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0) | /* c0 */
-	W(0xd0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1) , /* d0 */
-	W(0xe0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* e0 */
-	W(0xf0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1)   /* f0 */
-	/*      -----------------------------------------------         */
-	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
-};
-static const u32 twobyte_has_modrm[256 / 32] = {
-	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
-	/*      -----------------------------------------------         */
-	W(0x00, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1) | /* 0f */
-	W(0x10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0) , /* 1f */
-	W(0x20, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1) | /* 2f */
-	W(0x30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 3f */
-	W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 4f */
-	W(0x50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 5f */
-	W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 6f */
-	W(0x70, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1) , /* 7f */
-	W(0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 8f */
-	W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 9f */
-	W(0xa0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1) | /* af */
-	W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1) , /* bf */
-	W(0xc0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0) | /* cf */
-	W(0xd0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* df */
-	W(0xe0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* ef */
-	W(0xf0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0)   /* ff */
-	/*      -----------------------------------------------         */
-	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
-};
-#undef W
-
-struct kretprobe_blackpoint kretprobe_blacklist[] = {
-	{"__switch_to", }, /* This function switches only current task, but
-			      doesn't switch kernel stack.*/
-	{NULL, NULL}	/* Terminator */
-};
-const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
-
-/* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
-static __always_inline void set_jmp_op(void *from, void *to)
-{
-	struct __arch_jmp_op {
-		char op;
-		s32 raddr;
-	} __attribute__((packed)) * jop;
-	jop = (struct __arch_jmp_op *)from;
-	jop->raddr = (s32)((long)(to) - ((long)(from) + 5));
-	jop->op = RELATIVEJUMP_INSTRUCTION;
-}
-
-/*
- * returns non-zero if opcode is boostable.
- */
-static __always_inline int can_boost(kprobe_opcode_t *opcodes)
-{
-	kprobe_opcode_t opcode;
-	kprobe_opcode_t *orig_opcodes = opcodes;
-
-retry:
-	if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1)
-		return 0;
-	opcode = *(opcodes++);
-
-	/* 2nd-byte opcode */
-	if (opcode == 0x0f) {
-		if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1)
-			return 0;
-		return test_bit(*opcodes,
-				(unsigned long *)twobyte_is_boostable);
-	}
-
-	switch (opcode & 0xf0) {
-	case 0x60:
-		if (0x63 < opcode && opcode < 0x67)
-			goto retry; /* prefixes */
-		/* can't boost Address-size override and bound */
-		return (opcode != 0x62 && opcode != 0x67);
-	case 0x70:
-		return 0; /* can't boost conditional jump */
-	case 0xc0:
-		/* can't boost software-interruptions */
-		return (0xc1 < opcode && opcode < 0xcc) || opcode == 0xcf;
-	case 0xd0:
-		/* can boost AA* and XLAT */
-		return (opcode == 0xd4 || opcode == 0xd5 || opcode == 0xd7);
-	case 0xe0:
-		/* can boost in/out and absolute jmps */
-		return ((opcode & 0x04) || opcode == 0xea);
-	case 0xf0:
-		if ((opcode & 0x0c) == 0 && opcode != 0xf1)
-			goto retry; /* lock/rep(ne) prefix */
-		/* clear and set flags are boostable */
-		return (opcode == 0xf5 || (0xf7 < opcode && opcode < 0xfe));
-	default:
-		/* segment override prefixes are boostable */
-		if (opcode == 0x26 || opcode == 0x36 || opcode == 0x3e)
-			goto retry; /* prefixes */
-		/* CS override prefix and call are not boostable */
-		return (opcode != 0x2e && opcode != 0x9a);
-	}
-}
-
-/*
- * returns non-zero if opcode modifies the interrupt flag.
- */
-static int __kprobes is_IF_modifier(kprobe_opcode_t *insn)
-{
-	switch (*insn) {
-	case 0xfa:		/* cli */
-	case 0xfb:		/* sti */
-	case 0xcf:		/* iret/iretd */
-	case 0x9d:		/* popf/popfd */
-		return 1;
-	}
-	return 0;
-}
-
-static void __kprobes arch_copy_kprobe(struct kprobe *p)
-{
-	memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
-	if (can_boost(p->addr))
-		p->ainsn.boostable = 0;
-	else
-		p->ainsn.boostable = -1;
-
-	p->opcode = *p->addr;
-}
-
-int __kprobes arch_prepare_kprobe(struct kprobe *p)
-{
-	/* insn: must be on special executable page on x86. */
-	p->ainsn.insn = get_insn_slot();
-	if (!p->ainsn.insn)
-		return -ENOMEM;
-	arch_copy_kprobe(p);
-	return 0;
-}
-
-void __kprobes arch_arm_kprobe(struct kprobe *p)
-{
-	text_poke(p->addr, ((unsigned char []){BREAKPOINT_INSTRUCTION}), 1);
-}
-
-void __kprobes arch_disarm_kprobe(struct kprobe *p)
-{
-	text_poke(p->addr, &p->opcode, 1);
-}
-
-void __kprobes arch_remove_kprobe(struct kprobe *p)
-{
-	mutex_lock(&kprobe_mutex);
-	free_insn_slot(p->ainsn.insn, (p->ainsn.boostable == 1));
-	mutex_unlock(&kprobe_mutex);
-}
-
-static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
-{
-	kcb->prev_kprobe.kp = kprobe_running();
-	kcb->prev_kprobe.status = kcb->kprobe_status;
-	kcb->prev_kprobe.old_flags = kcb->kprobe_old_flags;
-	kcb->prev_kprobe.saved_flags = kcb->kprobe_saved_flags;
-}
-
-static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
-{
-	__get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp;
-	kcb->kprobe_status = kcb->prev_kprobe.status;
-	kcb->kprobe_old_flags = kcb->prev_kprobe.old_flags;
-	kcb->kprobe_saved_flags = kcb->prev_kprobe.saved_flags;
-}
-
-static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
-				struct kprobe_ctlblk *kcb)
-{
-	__get_cpu_var(current_kprobe) = p;
-	kcb->kprobe_saved_flags = kcb->kprobe_old_flags
-		= (regs->flags & (TF_MASK | IF_MASK));
-	if (is_IF_modifier(p->ainsn.insn))
-		kcb->kprobe_saved_flags &= ~IF_MASK;
-}
-
-static __always_inline void clear_btf(void)
-{
-	if (test_thread_flag(TIF_DEBUGCTLMSR))
-		wrmsr(MSR_IA32_DEBUGCTLMSR, 0, 0);
-}
-
-static __always_inline void restore_btf(void)
-{
-	if (test_thread_flag(TIF_DEBUGCTLMSR))
-		wrmsr(MSR_IA32_DEBUGCTLMSR, current->thread.debugctlmsr, 0);
-}
-
-static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
-{
-	clear_btf();
-	regs->flags |= TF_MASK;
-	regs->flags &= ~IF_MASK;
-	/*single step inline if the instruction is an int3*/
-	if (p->opcode == BREAKPOINT_INSTRUCTION)
-		regs->ip = (unsigned long)p->addr;
-	else
-		regs->ip = (unsigned long)p->ainsn.insn;
-}
-
-/* Called with kretprobe_lock held */
-void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
-				      struct pt_regs *regs)
-{
-	unsigned long *sara = stack_addr(regs);
-
-	ri->ret_addr = (kprobe_opcode_t *) *sara;
-
-	/* Replace the return addr with trampoline addr */
-	*sara = (unsigned long) &kretprobe_trampoline;
-}
-
-/*
- * Interrupts are disabled on entry as trap3 is an interrupt gate and they
- * remain disabled thorough out this function.
- */
-static int __kprobes kprobe_handler(struct pt_regs *regs)
-{
-	struct kprobe *p;
-	int ret = 0;
-	kprobe_opcode_t *addr;
-	struct kprobe_ctlblk *kcb;
-
-	addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
-
-	/*
-	 * We don't want to be preempted for the entire
-	 * duration of kprobe processing
-	 */
-	preempt_disable();
-	kcb = get_kprobe_ctlblk();
-
-	/* Check we're not actually recursing */
-	if (kprobe_running()) {
-		p = get_kprobe(addr);
-		if (p) {
-			if (kcb->kprobe_status == KPROBE_HIT_SS &&
-				*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
-				regs->flags &= ~TF_MASK;
-				regs->flags |= kcb->kprobe_saved_flags;
-				goto no_kprobe;
-			}
-			/* We have reentered the kprobe_handler(), since
-			 * another probe was hit while within the handler.
-			 * We here save the original kprobes variables and
-			 * just single step on the instruction of the new probe
-			 * without calling any user handlers.
-			 */
-			save_previous_kprobe(kcb);
-			set_current_kprobe(p, regs, kcb);
-			kprobes_inc_nmissed_count(p);
-			prepare_singlestep(p, regs);
-			kcb->kprobe_status = KPROBE_REENTER;
-			return 1;
-		} else {
-			if (*addr != BREAKPOINT_INSTRUCTION) {
-			/* The breakpoint instruction was removed by
-			 * another cpu right after we hit, no further
-			 * handling of this interrupt is appropriate
-			 */
-				regs->ip = (unsigned long)addr;
-				ret = 1;
-				goto no_kprobe;
-			}
-			p = __get_cpu_var(current_kprobe);
-			if (p->break_handler && p->break_handler(p, regs)) {
-				goto ss_probe;
-			}
-		}
-		goto no_kprobe;
-	}
-
-	p = get_kprobe(addr);
-	if (!p) {
-		if (*addr != BREAKPOINT_INSTRUCTION) {
-			/*
-			 * The breakpoint instruction was removed right
-			 * after we hit it.  Another cpu has removed
-			 * either a probepoint or a debugger breakpoint
-			 * at this address.  In either case, no further
-			 * handling of this interrupt is appropriate.
-			 * Back up over the (now missing) int3 and run
-			 * the original instruction.
-			 */
-			regs->ip = (unsigned long)addr;
-			ret = 1;
-		}
-		/* Not one of ours: let kernel handle it */
-		goto no_kprobe;
-	}
-
-	set_current_kprobe(p, regs, kcb);
-	kcb->kprobe_status = KPROBE_HIT_ACTIVE;
-
-	if (p->pre_handler && p->pre_handler(p, regs))
-		/* handler has already set things up, so skip ss setup */
-		return 1;
-
-ss_probe:
-#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PM)
-	if (p->ainsn.boostable == 1 && !p->post_handler) {
-		/* Boost up -- we can execute copied instructions directly */
-		reset_current_kprobe();
-		regs->ip = (unsigned long)p->ainsn.insn;
-		preempt_enable_no_resched();
-		return 1;
-	}
-#endif
-	prepare_singlestep(p, regs);
-	kcb->kprobe_status = KPROBE_HIT_SS;
-	return 1;
-
-no_kprobe:
-	preempt_enable_no_resched();
-	return ret;
-}
-
-/*
- * When a retprobed function returns, this code saves registers and
- * calls trampoline_handler() runs, which calls the kretprobe's handler.
- */
- void __kprobes kretprobe_trampoline_holder(void)
- {
-	asm volatile ( ".global kretprobe_trampoline\n"
-			"kretprobe_trampoline: \n"
-			"	pushf\n"
-			/*
-			 * Skip cs, ip, orig_ax.
-			 * trampoline_handler() will plug in these values
-			 */
-			"	subl $12, %esp\n"
-			"	pushl %fs\n"
-			"	pushl %ds\n"
-			"	pushl %es\n"
-			"	pushl %eax\n"
-			"	pushl %ebp\n"
-			"	pushl %edi\n"
-			"	pushl %esi\n"
-			"	pushl %edx\n"
-			"	pushl %ecx\n"
-			"	pushl %ebx\n"
-			"	movl %esp, %eax\n"
-			"	call trampoline_handler\n"
-			/* Move flags to cs */
-			"	movl 52(%esp), %edx\n"
-			"	movl %edx, 48(%esp)\n"
-			/* Replace saved flags with true return address. */
-			"	movl %eax, 52(%esp)\n"
-			"	popl %ebx\n"
-			"	popl %ecx\n"
-			"	popl %edx\n"
-			"	popl %esi\n"
-			"	popl %edi\n"
-			"	popl %ebp\n"
-			"	popl %eax\n"
-			/* Skip ip, orig_ax, es, ds, fs */
-			"	addl $20, %esp\n"
-			"	popf\n"
-			"	ret\n");
- }
-
-/*
- * Called from kretprobe_trampoline
- */
-void * __kprobes trampoline_handler(struct pt_regs *regs)
-{
-	struct kretprobe_instance *ri = NULL;
-	struct hlist_head *head, empty_rp;
-	struct hlist_node *node, *tmp;
-	unsigned long flags, orig_ret_address = 0;
-	unsigned long trampoline_address =(unsigned long)&kretprobe_trampoline;
-
-	INIT_HLIST_HEAD(&empty_rp);
-	spin_lock_irqsave(&kretprobe_lock, flags);
-	head = kretprobe_inst_table_head(current);
-	/* fixup registers */
-	regs->cs = __KERNEL_CS | get_kernel_rpl();
-	regs->ip = trampoline_address;
-	regs->orig_ax = ~0UL;
-
-	/*
-	 * It is possible to have multiple instances associated with a given
-	 * task either because multiple functions in the call path have
-	 * return probes installed on them, and/or more then one
-	 * return probe was registered for a target function.
-	 *
-	 * We can handle this because:
-	 *     - instances are always pushed into the head of the list
-	 *     - when multiple return probes are registered for the same
-	 *	 function, the (chronologically) first instance's ret_addr
-	 *	 will be the real return address, and all the rest will
-	 *	 point to kretprobe_trampoline.
-	 */
-	hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
-		if (ri->task != current)
-			/* another task is sharing our hash bucket */
-			continue;
-
-		if (ri->rp && ri->rp->handler) {
-			__get_cpu_var(current_kprobe) = &ri->rp->kp;
-			get_kprobe_ctlblk()->kprobe_status = KPROBE_HIT_ACTIVE;
-			ri->rp->handler(ri, regs);
-			__get_cpu_var(current_kprobe) = NULL;
-		}
-
-		orig_ret_address = (unsigned long)ri->ret_addr;
-		recycle_rp_inst(ri, &empty_rp);
-
-		if (orig_ret_address != trampoline_address)
-			/*
-			 * This is the real return address. Any other
-			 * instances associated with this task are for
-			 * other calls deeper on the call stack
-			 */
-			break;
-	}
-
-	kretprobe_assert(ri, orig_ret_address, trampoline_address);
-
-	spin_unlock_irqrestore(&kretprobe_lock, flags);
-
-	hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
-		hlist_del(&ri->hlist);
-		kfree(ri);
-	}
-	return (void *)orig_ret_address;
-}
-
-/*
- * Called after single-stepping.  p->addr is the address of the
- * instruction whose first byte has been replaced by the "int 3"
- * instruction.  To avoid the SMP problems that can occur when we
- * temporarily put back the original opcode to single-step, we
- * single-stepped a copy of the instruction.  The address of this
- * copy is p->ainsn.insn.
- *
- * This function prepares to return from the post-single-step
- * interrupt.  We have to fix up the stack as follows:
- *
- * 0) Except in the case of absolute or indirect jump or call instructions,
- * the new ip is relative to the copied instruction.  We need to make
- * it relative to the original instruction.
- *
- * 1) If the single-stepped instruction was pushfl, then the TF and IF
- * flags are set in the just-pushed flags, and may need to be cleared.
- *
- * 2) If the single-stepped instruction was a call, the return address
- * that is atop the stack is the address following the copied instruction.
- * We need to make it the address following the original instruction.
- *
- * If this is the first time we've single-stepped the instruction at
- * this probepoint, and the instruction is boostable, boost it: add a
- * jump instruction after the copied instruction, that jumps to the next
- * instruction after the probepoint.
- */
-static void __kprobes resume_execution(struct kprobe *p,
-		struct pt_regs *regs, struct kprobe_ctlblk *kcb)
-{
-	unsigned long *tos = stack_addr(regs);
-	unsigned long copy_ip = (unsigned long)p->ainsn.insn;
-	unsigned long orig_ip = (unsigned long)p->addr;
-	kprobe_opcode_t *insn = p->ainsn.insn;
-
-	regs->flags &= ~TF_MASK;
-	switch (*insn) {
-	case 0x9c:	/* pushfl */
-		*tos &= ~(TF_MASK | IF_MASK);
-		*tos |= kcb->kprobe_old_flags;
-		break;
-	case 0xc2:	/* iret/ret/lret */
-	case 0xc3:
-	case 0xca:
-	case 0xcb:
-	case 0xcf:
-	case 0xea:	/* jmp absolute -- ip is correct */
-		/* ip is already adjusted, no more changes required */
-		p->ainsn.boostable = 1;
-		goto no_change;
-	case 0xe8:	/* call relative - Fix return addr */
-		*tos = orig_ip + (*tos - copy_ip);
-		break;
-	case 0x9a:	/* call absolute -- same as call absolute, indirect */
-		*tos = orig_ip + (*tos - copy_ip);
-		goto no_change;
-	case 0xff:
-		if ((insn[1] & 0x30) == 0x10) {
-			/*
-			 * call absolute, indirect
-			 * Fix return addr; ip is correct.
-			 * But this is not boostable
-			 */
-			*tos = orig_ip + (*tos - copy_ip);
-			goto no_change;
-		} else if (((insn[1] & 0x31) == 0x20) ||
-			   ((insn[1] & 0x31) == 0x21)) {
-			/*
-			 * jmp near and far, absolute indirect
-			 * ip is correct. And this is boostable
-			 */
-			p->ainsn.boostable = 1;
-			goto no_change;
-		}
-	default:
-		break;
-	}
-
-	if (p->ainsn.boostable == 0) {
-		if ((regs->ip > copy_ip) &&
-		    (regs->ip - copy_ip) + 5 < MAX_INSN_SIZE) {
-			/*
-			 * These instructions can be executed directly if it
-			 * jumps back to correct address.
-			 */
-			set_jmp_op((void *)regs->ip,
-				   (void *)orig_ip + (regs->ip - copy_ip));
-			p->ainsn.boostable = 1;
-		} else {
-			p->ainsn.boostable = -1;
-		}
-	}
-
-	regs->ip += orig_ip - copy_ip;
-
-no_change:
-	restore_btf();
-
-	return;
-}
-
-/*
- * Interrupts are disabled on entry as trap1 is an interrupt gate and they
- * remain disabled thoroughout this function.
- */
-static int __kprobes post_kprobe_handler(struct pt_regs *regs)
-{
-	struct kprobe *cur = kprobe_running();
-	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-
-	if (!cur)
-		return 0;
-
-	if ((kcb->kprobe_status != KPROBE_REENTER) && cur->post_handler) {
-		kcb->kprobe_status = KPROBE_HIT_SSDONE;
-		cur->post_handler(cur, regs, 0);
-	}
-
-	resume_execution(cur, regs, kcb);
-	regs->flags |= kcb->kprobe_saved_flags;
-	trace_hardirqs_fixup_flags(regs->flags);
-
-	/* Restore back the original saved kprobes variables and continue. */
-	if (kcb->kprobe_status == KPROBE_REENTER) {
-		restore_previous_kprobe(kcb);
-		goto out;
-	}
-	reset_current_kprobe();
-out:
-	preempt_enable_no_resched();
-
-	/*
-	 * if somebody else is singlestepping across a probe point, flags
-	 * will have TF set, in which case, continue the remaining processing
-	 * of do_debug, as if this is not a probe hit.
-	 */
-	if (regs->flags & TF_MASK)
-		return 0;
-
-	return 1;
-}
-
-int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
-{
-	struct kprobe *cur = kprobe_running();
-	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-
-	switch(kcb->kprobe_status) {
-	case KPROBE_HIT_SS:
-	case KPROBE_REENTER:
-		/*
-		 * We are here because the instruction being single
-		 * stepped caused a page fault. We reset the current
-		 * kprobe and the ip points back to the probe address
-		 * and allow the page fault handler to continue as a
-		 * normal page fault.
-		 */
-		regs->ip = (unsigned long)cur->addr;
-		regs->flags |= kcb->kprobe_old_flags;
-		if (kcb->kprobe_status == KPROBE_REENTER)
-			restore_previous_kprobe(kcb);
-		else
-			reset_current_kprobe();
-		preempt_enable_no_resched();
-		break;
-	case KPROBE_HIT_ACTIVE:
-	case KPROBE_HIT_SSDONE:
-		/*
-		 * We increment the nmissed count for accounting,
-		 * we can also use npre/npostfault count for accounting
-		 * these specific fault cases.
-		 */
-		kprobes_inc_nmissed_count(cur);
-
-		/*
-		 * We come here because instructions in the pre/post
-		 * handler caused the page_fault, this could happen
-		 * if handler tries to access user space by
-		 * copy_from_user(), get_user() etc. Let the
-		 * user-specified handler try to fix it first.
-		 */
-		if (cur->fault_handler && cur->fault_handler(cur, regs, trapnr))
-			return 1;
-
-		/*
-		 * In case the user-specified fault handler returned
-		 * zero, try to fix up.
-		 */
-		if (fixup_exception(regs))
-			return 1;
-
-		/*
-		 * fixup routine could not handle it,
-		 * Let do_page_fault() fix it.
-		 */
-		break;
-	default:
-		break;
-	}
-	return 0;
-}
-
-/*
- * Wrapper routine for handling exceptions.
- */
-int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
-				       unsigned long val, void *data)
-{
-	struct die_args *args = (struct die_args *)data;
-	int ret = NOTIFY_DONE;
-
-	if (args->regs && user_mode_vm(args->regs))
-		return ret;
-
-	switch (val) {
-	case DIE_INT3:
-		if (kprobe_handler(args->regs))
-			ret = NOTIFY_STOP;
-		break;
-	case DIE_DEBUG:
-		if (post_kprobe_handler(args->regs))
-			ret = NOTIFY_STOP;
-		break;
-	case DIE_GPF:
-		/* kprobe_running() needs smp_processor_id() */
-		preempt_disable();
-		if (kprobe_running() &&
-		    kprobe_fault_handler(args->regs, args->trapnr))
-			ret = NOTIFY_STOP;
-		preempt_enable();
-		break;
-	default:
-		break;
-	}
-	return ret;
-}
-
-int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
-{
-	struct jprobe *jp = container_of(p, struct jprobe, kp);
-	unsigned long addr;
-	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-
-	kcb->jprobe_saved_regs = *regs;
-	kcb->jprobe_saved_sp = stack_addr(regs);
-	addr = (unsigned long)(kcb->jprobe_saved_sp);
-
-	/*
-	 * As Linus pointed out, gcc assumes that the callee
-	 * owns the argument space and could overwrite it, e.g.
-	 * tailcall optimization. So, to be absolutely safe
-	 * we also save and restore enough stack bytes to cover
-	 * the argument area.
-	 */
-	memcpy(kcb->jprobes_stack, (kprobe_opcode_t *)addr,
-			MIN_STACK_SIZE(addr));
-	regs->flags &= ~IF_MASK;
-	trace_hardirqs_off();
-	regs->ip = (unsigned long)(jp->entry);
-	return 1;
-}
-
-void __kprobes jprobe_return(void)
-{
-	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-
-	asm volatile ("       xchgl   %%ebx,%%esp     \n"
-		      "       int3			\n"
-		      "       .globl jprobe_return_end	\n"
-		      "       jprobe_return_end:	\n"
-		      "       nop			\n"::"b"
-		      (kcb->jprobe_saved_sp):"memory");
-}
-
-int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
-{
-	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-	u8 *addr = (u8 *) (regs->ip - 1);
-	struct jprobe *jp = container_of(p, struct jprobe, kp);
-
-	if ((addr > (u8 *) jprobe_return) && (addr < (u8 *) jprobe_return_end)) {
-		if (stack_addr(regs) != kcb->jprobe_saved_sp) {
-			struct pt_regs *saved_regs = &kcb->jprobe_saved_regs;
-			printk("current sp %p does not match saved sp %p\n",
-			       stack_addr(regs), kcb->jprobe_saved_sp);
-			printk("Saved registers for jprobe %p\n", jp);
-			show_registers(saved_regs);
-			printk("Current registers\n");
-			show_registers(regs);
-			BUG();
-		}
-		*regs = kcb->jprobe_saved_regs;
-		memcpy((kprobe_opcode_t *)(kcb->jprobe_saved_sp),
-		       kcb->jprobes_stack,
-		       MIN_STACK_SIZE(kcb->jprobe_saved_sp));
-		preempt_enable_no_resched();
-		return 1;
-	}
-	return 0;
-}
-
-int __init arch_init_kprobes(void)
-{
-	return 0;
-}
-
-int __kprobes arch_trampoline_kprobe(struct kprobe *p)
-{
-	return 0;
-}
diff --git a/arch/x86/kernel/kprobes_64.c b/arch/x86/kernel/kprobes_64.c
deleted file mode 100644
index 2d7763749b1b..000000000000
--- a/arch/x86/kernel/kprobes_64.c
+++ /dev/null
@@ -1,953 +0,0 @@
-/*
- *  Kernel Probes (KProbes)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (C) IBM Corporation, 2002, 2004
- *
- * 2002-Oct	Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel
- *		Probes initial implementation ( includes contributions from
- *		Rusty Russell).
- * 2004-July	Suparna Bhattacharya <suparna@in.ibm.com> added jumper probes
- *		interface to access function arguments.
- * 2004-Oct	Jim Keniston <kenistoj@us.ibm.com> and Prasanna S Panchamukhi
- *		<prasanna@in.ibm.com> adapted for x86_64
- * 2005-Mar	Roland McGrath <roland@redhat.com>
- *		Fixed to handle %rip-relative addressing mode correctly.
- * 2005-May     Rusty Lynch <rusty.lynch@intel.com>
- *              Added function return probes functionality
- * 2007-Dec	Masami Hiramatsu <mhiramat@redhat.com> added kprobe-booster
- * 		and kretprobe-booster for x86-64
- */
-
-#include <linux/kprobes.h>
-#include <linux/ptrace.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/preempt.h>
-#include <linux/module.h>
-#include <linux/kdebug.h>
-
-#include <asm/cacheflush.h>
-#include <asm/desc.h>
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-#include <asm/alternative.h>
-
-void jprobe_return_end(void);
-
-DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
-DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
-
-#define stack_addr(regs) ((unsigned long *)regs->sp)
-
-#define W(row, b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, ba, bb, bc, bd, be, bf)\
-	(((b0##UL << 0x0)|(b1##UL << 0x1)|(b2##UL << 0x2)|(b3##UL << 0x3) |   \
-	  (b4##UL << 0x4)|(b5##UL << 0x5)|(b6##UL << 0x6)|(b7##UL << 0x7) |   \
-	  (b8##UL << 0x8)|(b9##UL << 0x9)|(ba##UL << 0xa)|(bb##UL << 0xb) |   \
-	  (bc##UL << 0xc)|(bd##UL << 0xd)|(be##UL << 0xe)|(bf##UL << 0xf))    \
-	 << (row % 32))
-	/*
-	 * Undefined/reserved opcodes, conditional jump, Opcode Extension
-	 * Groups, and some special opcodes can not boost.
-	 */
-static const u32 twobyte_is_boostable[256 / 32] = {
-	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
-	/*      ----------------------------------------------          */
-	W(0x00, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0) | /* 00 */
-	W(0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 10 */
-	W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 20 */
-	W(0x30, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 30 */
-	W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 40 */
-	W(0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 50 */
-	W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1) | /* 60 */
-	W(0x70, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1) , /* 70 */
-	W(0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 80 */
-	W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 90 */
-	W(0xa0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) | /* a0 */
-	W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1) , /* b0 */
-	W(0xc0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1) | /* c0 */
-	W(0xd0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) , /* d0 */
-	W(0xe0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1) | /* e0 */
-	W(0xf0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0)   /* f0 */
-	/*      -----------------------------------------------         */
-	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
-};
-static const u32 onebyte_has_modrm[256 / 32] = {
-	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
-	/*      -----------------------------------------------         */
-	W(0x00, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* 00 */
-	W(0x10, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) , /* 10 */
-	W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* 20 */
-	W(0x30, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) , /* 30 */
-	W(0x40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 40 */
-	W(0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 50 */
-	W(0x60, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0) | /* 60 */
-	W(0x70, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 70 */
-	W(0x80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 80 */
-	W(0x90, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 90 */
-	W(0xa0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* a0 */
-	W(0xb0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* b0 */
-	W(0xc0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0) | /* c0 */
-	W(0xd0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1) , /* d0 */
-	W(0xe0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* e0 */
-	W(0xf0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1)   /* f0 */
-	/*      -----------------------------------------------         */
-	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
-};
-static const u32 twobyte_has_modrm[256 / 32] = {
-	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
-	/*      -----------------------------------------------         */
-	W(0x00, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1) | /* 0f */
-	W(0x10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0) , /* 1f */
-	W(0x20, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1) | /* 2f */
-	W(0x30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 3f */
-	W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 4f */
-	W(0x50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 5f */
-	W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 6f */
-	W(0x70, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1) , /* 7f */
-	W(0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 8f */
-	W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 9f */
-	W(0xa0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1) | /* af */
-	W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1) , /* bf */
-	W(0xc0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0) | /* cf */
-	W(0xd0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* df */
-	W(0xe0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* ef */
-	W(0xf0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0)   /* ff */
-	/*      -----------------------------------------------         */
-	/*      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f          */
-};
-#undef W
-
-struct kretprobe_blackpoint kretprobe_blacklist[] = {
-	{"__switch_to", }, /* This function switches only current task, but
-			      doesn't switch kernel stack.*/
-	{NULL, NULL}	/* Terminator */
-};
-const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
-
-/* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
-static __always_inline void set_jmp_op(void *from, void *to)
-{
-	struct __arch_jmp_op {
-		char op;
-		s32 raddr;
-	} __attribute__((packed)) * jop;
-	jop = (struct __arch_jmp_op *)from;
-	jop->raddr = (s32)((long)(to) - ((long)(from) + 5));
-	jop->op = RELATIVEJUMP_INSTRUCTION;
-}
-
-/*
- * returns non-zero if opcode is boostable.
- * RIP relative instructions are adjusted at copying time
- */
-static __always_inline int can_boost(kprobe_opcode_t *opcodes)
-{
-	kprobe_opcode_t opcode;
-	kprobe_opcode_t *orig_opcodes = opcodes;
-
-retry:
-	if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1)
-		return 0;
-	opcode = *(opcodes++);
-
-	/* 2nd-byte opcode */
-	if (opcode == 0x0f) {
-		if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1)
-			return 0;
-		return test_bit(*opcodes,
-				(unsigned long *)twobyte_is_boostable);
-	}
-
-	switch (opcode & 0xf0) {
-	case 0x40:
-		goto retry; /* REX prefix is boostable */
-	case 0x60:
-		if (0x63 < opcode && opcode < 0x67)
-			goto retry; /* prefixes */
-		/* can't boost Address-size override and bound */
-		return (opcode != 0x62 && opcode != 0x67);
-	case 0x70:
-		return 0; /* can't boost conditional jump */
-	case 0xc0:
-		/* can't boost software-interruptions */
-		return (0xc1 < opcode && opcode < 0xcc) || opcode == 0xcf;
-	case 0xd0:
-		/* can boost AA* and XLAT */
-		return (opcode == 0xd4 || opcode == 0xd5 || opcode == 0xd7);
-	case 0xe0:
-		/* can boost in/out and absolute jmps */
-		return ((opcode & 0x04) || opcode == 0xea);
-	case 0xf0:
-		if ((opcode & 0x0c) == 0 && opcode != 0xf1)
-			goto retry; /* lock/rep(ne) prefix */
-		/* clear and set flags are boostable */
-		return (opcode == 0xf5 || (0xf7 < opcode && opcode < 0xfe));
-	default:
-		/* segment override prefixes are boostable */
-		if (opcode == 0x26 || opcode == 0x36 || opcode == 0x3e)
-			goto retry; /* prefixes */
-		/* CS override prefix and call are not boostable */
-		return (opcode != 0x2e && opcode != 0x9a);
-	}
-}
-
-/*
- * returns non-zero if opcode modifies the interrupt flag.
- */
-static int __kprobes is_IF_modifier(kprobe_opcode_t *insn)
-{
-	switch (*insn) {
-	case 0xfa:		/* cli */
-	case 0xfb:		/* sti */
-	case 0xcf:		/* iret/iretd */
-	case 0x9d:		/* popf/popfd */
-		return 1;
-	}
-
-	/*
-	 * on 64 bit x86, 0x40-0x4f are prefixes so we need to look
-	 * at the next byte instead.. but of course not recurse infinitely
-	 */
-	if (*insn  >= 0x40 && *insn <= 0x4f)
-		return is_IF_modifier(++insn);
-	return 0;
-}
-
-/*
- * Adjust the displacement if the instruction uses the %rip-relative
- * addressing mode.
- * If it does, Return the address of the 32-bit displacement word.
- * If not, return null.
- */
-static void __kprobes fix_riprel(struct kprobe *p)
-{
-	u8 *insn = p->ainsn.insn;
-	s64 disp;
-	int need_modrm;
-
-	/* Skip legacy instruction prefixes.  */
-	while (1) {
-		switch (*insn) {
-		case 0x66:
-		case 0x67:
-		case 0x2e:
-		case 0x3e:
-		case 0x26:
-		case 0x64:
-		case 0x65:
-		case 0x36:
-		case 0xf0:
-		case 0xf3:
-		case 0xf2:
-			++insn;
-			continue;
-		}
-		break;
-	}
-
-	/* Skip REX instruction prefix.  */
-	if ((*insn & 0xf0) == 0x40)
-		++insn;
-
-	if (*insn == 0x0f) {	/* Two-byte opcode.  */
-		++insn;
-		need_modrm = test_bit(*insn,
-				      (unsigned long *)twobyte_has_modrm);
-	} else			/* One-byte opcode.  */
-		need_modrm = test_bit(*insn,
-				      (unsigned long *)onebyte_has_modrm);
-
-	if (need_modrm) {
-		u8 modrm = *++insn;
-		if ((modrm & 0xc7) == 0x05) { /* %rip+disp32 addressing mode */
-			/* Displacement follows ModRM byte.  */
-			++insn;
-			/*
-			 * The copied instruction uses the %rip-relative
-			 * addressing mode.  Adjust the displacement for the
-			 * difference between the original location of this
-			 * instruction and the location of the copy that will
-			 * actually be run.  The tricky bit here is making sure
-			 * that the sign extension happens correctly in this
-			 * calculation, since we need a signed 32-bit result to
-			 * be sign-extended to 64 bits when it's added to the
-			 * %rip value and yield the same 64-bit result that the
-			 * sign-extension of the original signed 32-bit
-			 * displacement would have given.
-			 */
-			disp = (u8 *) p->addr + *((s32 *) insn) -
-			       (u8 *) p->ainsn.insn;
-			BUG_ON((s64) (s32) disp != disp); /* Sanity check.  */
-			*(s32 *)insn = (s32) disp;
-		}
-	}
-}
-
-static void __kprobes arch_copy_kprobe(struct kprobe *p)
-{
-	memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
-	fix_riprel(p);
-	if (can_boost(p->addr))
-		p->ainsn.boostable = 0;
-	else
-		p->ainsn.boostable = -1;
-
-	p->opcode = *p->addr;
-}
-
-int __kprobes arch_prepare_kprobe(struct kprobe *p)
-{
-	/* insn: must be on special executable page on x86. */
-	p->ainsn.insn = get_insn_slot();
-	if (!p->ainsn.insn)
-		return -ENOMEM;
-	arch_copy_kprobe(p);
-	return 0;
-}
-
-void __kprobes arch_arm_kprobe(struct kprobe *p)
-{
-	text_poke(p->addr, ((unsigned char []){BREAKPOINT_INSTRUCTION}), 1);
-}
-
-void __kprobes arch_disarm_kprobe(struct kprobe *p)
-{
-	text_poke(p->addr, &p->opcode, 1);
-}
-
-void __kprobes arch_remove_kprobe(struct kprobe *p)
-{
-	mutex_lock(&kprobe_mutex);
-	free_insn_slot(p->ainsn.insn, (p->ainsn.boostable == 1));
-	mutex_unlock(&kprobe_mutex);
-}
-
-static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
-{
-	kcb->prev_kprobe.kp = kprobe_running();
-	kcb->prev_kprobe.status = kcb->kprobe_status;
-	kcb->prev_kprobe.old_flags = kcb->kprobe_old_flags;
-	kcb->prev_kprobe.saved_flags = kcb->kprobe_saved_flags;
-}
-
-static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
-{
-	__get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp;
-	kcb->kprobe_status = kcb->prev_kprobe.status;
-	kcb->kprobe_old_flags = kcb->prev_kprobe.old_flags;
-	kcb->kprobe_saved_flags = kcb->prev_kprobe.saved_flags;
-}
-
-static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
-				struct kprobe_ctlblk *kcb)
-{
-	__get_cpu_var(current_kprobe) = p;
-	kcb->kprobe_saved_flags = kcb->kprobe_old_flags
-		= (regs->flags & (TF_MASK | IF_MASK));
-	if (is_IF_modifier(p->ainsn.insn))
-		kcb->kprobe_saved_flags &= ~IF_MASK;
-}
-
-static __always_inline void clear_btf(void)
-{
-	if (test_thread_flag(TIF_DEBUGCTLMSR))
-		wrmsrl(MSR_IA32_DEBUGCTLMSR, 0);
-}
-
-static __always_inline void restore_btf(void)
-{
-	if (test_thread_flag(TIF_DEBUGCTLMSR))
-		wrmsrl(MSR_IA32_DEBUGCTLMSR, current->thread.debugctlmsr);
-}
-
-static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
-{
-	clear_btf();
-	regs->flags |= TF_MASK;
-	regs->flags &= ~IF_MASK;
-	/*single step inline if the instruction is an int3*/
-	if (p->opcode == BREAKPOINT_INSTRUCTION)
-		regs->ip = (unsigned long)p->addr;
-	else
-		regs->ip = (unsigned long)p->ainsn.insn;
-}
-
-/* Called with kretprobe_lock held */
-void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
-				      struct pt_regs *regs)
-{
-	unsigned long *sara = stack_addr(regs);
-
-	ri->ret_addr = (kprobe_opcode_t *) *sara;
-
-	/* Replace the return addr with trampoline addr */
-	*sara = (unsigned long) &kretprobe_trampoline;
-}
-
-/*
- * Interrupts are disabled on entry as trap3 is an interrupt gate and they
- * remain disabled thorough out this function.
- */
-static int __kprobes kprobe_handler(struct pt_regs *regs)
-{
-	struct kprobe *p;
-	int ret = 0;
-	kprobe_opcode_t *addr;
-	struct kprobe_ctlblk *kcb;
-
-	addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
-
-	/*
-	 * We don't want to be preempted for the entire
-	 * duration of kprobe processing
-	 */
-	preempt_disable();
-	kcb = get_kprobe_ctlblk();
-
-	/* Check we're not actually recursing */
-	if (kprobe_running()) {
-		p = get_kprobe(addr);
-		if (p) {
-			if (kcb->kprobe_status == KPROBE_HIT_SS &&
-				*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
-				regs->flags &= ~TF_MASK;
-				regs->flags |= kcb->kprobe_saved_flags;
-				goto no_kprobe;
-			} else if (kcb->kprobe_status == KPROBE_HIT_SSDONE) {
-				/* TODO: Provide re-entrancy from
-				 * post_kprobes_handler() and avoid exception
-				 * stack corruption while single-stepping on
-				 * the instruction of the new probe.
-				 */
-				arch_disarm_kprobe(p);
-				regs->ip = (unsigned long)p->addr;
-				reset_current_kprobe();
-				return 1;
-			}
-			/* We have reentered the kprobe_handler(), since
-			 * another probe was hit while within the handler.
-			 * We here save the original kprobes variables and
-			 * just single step on the instruction of the new probe
-			 * without calling any user handlers.
-			 */
-			save_previous_kprobe(kcb);
-			set_current_kprobe(p, regs, kcb);
-			kprobes_inc_nmissed_count(p);
-			prepare_singlestep(p, regs);
-			kcb->kprobe_status = KPROBE_REENTER;
-			return 1;
-		} else {
-			if (*addr != BREAKPOINT_INSTRUCTION) {
-			/* The breakpoint instruction was removed by
-			 * another cpu right after we hit, no further
-			 * handling of this interrupt is appropriate
-			 */
-				regs->ip = (unsigned long)addr;
-				ret = 1;
-				goto no_kprobe;
-			}
-			p = __get_cpu_var(current_kprobe);
-			if (p->break_handler && p->break_handler(p, regs)) {
-				goto ss_probe;
-			}
-		}
-		goto no_kprobe;
-	}
-
-	p = get_kprobe(addr);
-	if (!p) {
-		if (*addr != BREAKPOINT_INSTRUCTION) {
-			/*
-			 * The breakpoint instruction was removed right
-			 * after we hit it.  Another cpu has removed
-			 * either a probepoint or a debugger breakpoint
-			 * at this address.  In either case, no further
-			 * handling of this interrupt is appropriate.
-			 * Back up over the (now missing) int3 and run
-			 * the original instruction.
-			 */
-			regs->ip = (unsigned long)addr;
-			ret = 1;
-		}
-		/* Not one of ours: let kernel handle it */
-		goto no_kprobe;
-	}
-
-	set_current_kprobe(p, regs, kcb);
-	kcb->kprobe_status = KPROBE_HIT_ACTIVE;
-
-	if (p->pre_handler && p->pre_handler(p, regs))
-		/* handler has already set things up, so skip ss setup */
-		return 1;
-
-ss_probe:
-#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PM)
-	if (p->ainsn.boostable == 1 && !p->post_handler) {
-		/* Boost up -- we can execute copied instructions directly */
-		reset_current_kprobe();
-		regs->ip = (unsigned long)p->ainsn.insn;
-		preempt_enable_no_resched();
-		return 1;
-	}
-#endif
-	prepare_singlestep(p, regs);
-	kcb->kprobe_status = KPROBE_HIT_SS;
-	return 1;
-
-no_kprobe:
-	preempt_enable_no_resched();
-	return ret;
-}
-
-/*
- * When a retprobed function returns, this code saves registers and
- * calls trampoline_handler() runs, which calls the kretprobe's handler.
- */
- void __kprobes kretprobe_trampoline_holder(void)
- {
- 	asm volatile (  ".global kretprobe_trampoline\n"
-			"kretprobe_trampoline: \n"
-			/* We don't bother saving the ss register */
-			"	pushq %rsp\n"
-			"	pushfq\n"
-			/*
-			 * Skip cs, ip, orig_ax.
-			 * trampoline_handler() will plug in these values
-			 */
-			"	subq $24, %rsp\n"
-			"	pushq %rdi\n"
-			"	pushq %rsi\n"
-			"	pushq %rdx\n"
-			"	pushq %rcx\n"
-			"	pushq %rax\n"
-			"	pushq %r8\n"
-			"	pushq %r9\n"
-			"	pushq %r10\n"
-			"	pushq %r11\n"
-			"	pushq %rbx\n"
-			"	pushq %rbp\n"
-			"	pushq %r12\n"
-			"	pushq %r13\n"
-			"	pushq %r14\n"
-			"	pushq %r15\n"
-			"	movq %rsp, %rdi\n"
-			"	call trampoline_handler\n"
-			/* Replace saved sp with true return address. */
-			"	movq %rax, 152(%rsp)\n"
-			"	popq %r15\n"
-			"	popq %r14\n"
-			"	popq %r13\n"
-			"	popq %r12\n"
-			"	popq %rbp\n"
-			"	popq %rbx\n"
-			"	popq %r11\n"
-			"	popq %r10\n"
-			"	popq %r9\n"
-			"	popq %r8\n"
-			"	popq %rax\n"
-			"	popq %rcx\n"
-			"	popq %rdx\n"
-			"	popq %rsi\n"
-			"	popq %rdi\n"
-			/* Skip orig_ax, ip, cs */
-			"	addq $24, %rsp\n"
-			"	popfq\n"
-			"	ret\n");
- }
-
-/*
- * Called from kretprobe_trampoline
- */
-fastcall void * __kprobes trampoline_handler(struct pt_regs *regs)
-{
-	struct kretprobe_instance *ri = NULL;
-	struct hlist_head *head, empty_rp;
-	struct hlist_node *node, *tmp;
-	unsigned long flags, orig_ret_address = 0;
-	unsigned long trampoline_address =(unsigned long)&kretprobe_trampoline;
-
-	INIT_HLIST_HEAD(&empty_rp);
-	spin_lock_irqsave(&kretprobe_lock, flags);
-	head = kretprobe_inst_table_head(current);
-	/* fixup registers */
-	regs->cs = __KERNEL_CS;
-	regs->ip = trampoline_address;
-	regs->orig_ax = ~0UL;
-
-	/*
-	 * It is possible to have multiple instances associated with a given
-	 * task either because multiple functions in the call path have
-	 * return probes installed on them, and/or more then one
-	 * return probe was registered for a target function.
-	 *
-	 * We can handle this because:
-	 *     - instances are always pushed into the head of the list
-	 *     - when multiple return probes are registered for the same
-	 *	 function, the (chronologically) first instance's ret_addr
-	 *	 will be the real return address, and all the rest will
-	 *	 point to kretprobe_trampoline.
-	 */
-	hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
-		if (ri->task != current)
-			/* another task is sharing our hash bucket */
-			continue;
-
-		if (ri->rp && ri->rp->handler) {
-			__get_cpu_var(current_kprobe) = &ri->rp->kp;
-			get_kprobe_ctlblk()->kprobe_status = KPROBE_HIT_ACTIVE;
-			ri->rp->handler(ri, regs);
-			__get_cpu_var(current_kprobe) = NULL;
-		}
-
-		orig_ret_address = (unsigned long)ri->ret_addr;
-		recycle_rp_inst(ri, &empty_rp);
-
-		if (orig_ret_address != trampoline_address)
-			/*
-			 * This is the real return address. Any other
-			 * instances associated with this task are for
-			 * other calls deeper on the call stack
-			 */
-			break;
-	}
-
-	kretprobe_assert(ri, orig_ret_address, trampoline_address);
-
-	spin_unlock_irqrestore(&kretprobe_lock, flags);
-
-	hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
-		hlist_del(&ri->hlist);
-		kfree(ri);
-	}
-	return (void *)orig_ret_address;
-}
-
-/*
- * Called after single-stepping.  p->addr is the address of the
- * instruction whose first byte has been replaced by the "int 3"
- * instruction.  To avoid the SMP problems that can occur when we
- * temporarily put back the original opcode to single-step, we
- * single-stepped a copy of the instruction.  The address of this
- * copy is p->ainsn.insn.
- *
- * This function prepares to return from the post-single-step
- * interrupt.  We have to fix up the stack as follows:
- *
- * 0) Except in the case of absolute or indirect jump or call instructions,
- * the new ip is relative to the copied instruction.  We need to make
- * it relative to the original instruction.
- *
- * 1) If the single-stepped instruction was pushfl, then the TF and IF
- * flags are set in the just-pushed flags, and may need to be cleared.
- *
- * 2) If the single-stepped instruction was a call, the return address
- * that is atop the stack is the address following the copied instruction.
- * We need to make it the address following the original instruction.
- *
- * If this is the first time we've single-stepped the instruction at
- * this probepoint, and the instruction is boostable, boost it: add a
- * jump instruction after the copied instruction, that jumps to the next
- * instruction after the probepoint.
- */
-static void __kprobes resume_execution(struct kprobe *p,
-		struct pt_regs *regs, struct kprobe_ctlblk *kcb)
-{
-	unsigned long *tos = stack_addr(regs);
-	unsigned long copy_ip = (unsigned long)p->ainsn.insn;
-	unsigned long orig_ip = (unsigned long)p->addr;
-	kprobe_opcode_t *insn = p->ainsn.insn;
-
-	/*skip the REX prefix*/
-	if (*insn >= 0x40 && *insn <= 0x4f)
-		insn++;
-
-	regs->flags &= ~TF_MASK;
-	switch (*insn) {
-	case 0x9c:	/* pushfl */
-		*tos &= ~(TF_MASK | IF_MASK);
-		*tos |= kcb->kprobe_old_flags;
-		break;
-	case 0xc2:	/* iret/ret/lret */
-	case 0xc3:
-	case 0xca:
-	case 0xcb:
-	case 0xcf:
-	case 0xea:	/* jmp absolute -- ip is correct */
-		/* ip is already adjusted, no more changes required */
-		p->ainsn.boostable = 1;
-		goto no_change;
-	case 0xe8:	/* call relative - Fix return addr */
-		*tos = orig_ip + (*tos - copy_ip);
-		break;
-	case 0xff:
-		if ((insn[1] & 0x30) == 0x10) {
-			/*
-			 * call absolute, indirect
-			 * Fix return addr; ip is correct.
-			 * But this is not boostable
-			 */
-			*tos = orig_ip + (*tos - copy_ip);
-			goto no_change;
-		} else if (((insn[1] & 0x31) == 0x20) ||
-			   ((insn[1] & 0x31) == 0x21)) {
-			/*
-			 * jmp near and far, absolute indirect
-			 * ip is correct. And this is boostable
-			 */
-			p->ainsn.boostable = 1;
-			goto no_change;
-		}
-	default:
-		break;
-	}
-
-	if (p->ainsn.boostable == 0) {
-		if ((regs->ip > copy_ip) &&
-		    (regs->ip - copy_ip) + 5 < MAX_INSN_SIZE) {
-			/*
-			 * These instructions can be executed directly if it
-			 * jumps back to correct address.
-			 */
-			set_jmp_op((void *)regs->ip,
-				   (void *)orig_ip + (regs->ip - copy_ip));
-			p->ainsn.boostable = 1;
-		} else {
-			p->ainsn.boostable = -1;
-		}
-	}
-
-	regs->ip += orig_ip - copy_ip;
-
-no_change:
-	restore_btf();
-
-	return;
-}
-
-/*
- * Interrupts are disabled on entry as trap1 is an interrupt gate and they
- * remain disabled thoroughout this function.
- */
-static int __kprobes post_kprobe_handler(struct pt_regs *regs)
-{
-	struct kprobe *cur = kprobe_running();
-	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-
-	if (!cur)
-		return 0;
-
-	if ((kcb->kprobe_status != KPROBE_REENTER) && cur->post_handler) {
-		kcb->kprobe_status = KPROBE_HIT_SSDONE;
-		cur->post_handler(cur, regs, 0);
-	}
-
-	resume_execution(cur, regs, kcb);
-	regs->flags |= kcb->kprobe_saved_flags;
-	trace_hardirqs_fixup_flags(regs->flags);
-
-	/* Restore back the original saved kprobes variables and continue. */
-	if (kcb->kprobe_status == KPROBE_REENTER) {
-		restore_previous_kprobe(kcb);
-		goto out;
-	}
-	reset_current_kprobe();
-out:
-	preempt_enable_no_resched();
-
-	/*
-	 * if somebody else is singlestepping across a probe point, flags
-	 * will have TF set, in which case, continue the remaining processing
-	 * of do_debug, as if this is not a probe hit.
-	 */
-	if (regs->flags & TF_MASK)
-		return 0;
-
-	return 1;
-}
-
-int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
-{
-	struct kprobe *cur = kprobe_running();
-	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-	const struct exception_table_entry *fixup;
-
-	switch(kcb->kprobe_status) {
-	case KPROBE_HIT_SS:
-	case KPROBE_REENTER:
-		/*
-		 * We are here because the instruction being single
-		 * stepped caused a page fault. We reset the current
-		 * kprobe and the ip points back to the probe address
-		 * and allow the page fault handler to continue as a
-		 * normal page fault.
-		 */
-		regs->ip = (unsigned long)cur->addr;
-		regs->flags |= kcb->kprobe_old_flags;
-		if (kcb->kprobe_status == KPROBE_REENTER)
-			restore_previous_kprobe(kcb);
-		else
-			reset_current_kprobe();
-		preempt_enable_no_resched();
-		break;
-	case KPROBE_HIT_ACTIVE:
-	case KPROBE_HIT_SSDONE:
-		/*
-		 * We increment the nmissed count for accounting,
-		 * we can also use npre/npostfault count for accounting
-		 * these specific fault cases.
-		 */
-		kprobes_inc_nmissed_count(cur);
-
-		/*
-		 * We come here because instructions in the pre/post
-		 * handler caused the page_fault, this could happen
-		 * if handler tries to access user space by
-		 * copy_from_user(), get_user() etc. Let the
-		 * user-specified handler try to fix it first.
-		 */
-		if (cur->fault_handler && cur->fault_handler(cur, regs, trapnr))
-			return 1;
-
-		/*
-		 * In case the user-specified fault handler returned
-		 * zero, try to fix up.
-		 */
-		fixup = search_exception_tables(regs->ip);
-		if (fixup) {
-			regs->ip = fixup->fixup;
-			return 1;
-		}
-
-		/*
-		 * fixup routine could not handle it,
-		 * Let do_page_fault() fix it.
-		 */
-		break;
-	default:
-		break;
-	}
-	return 0;
-}
-
-/*
- * Wrapper routine for handling exceptions.
- */
-int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
-				       unsigned long val, void *data)
-{
-	struct die_args *args = (struct die_args *)data;
-	int ret = NOTIFY_DONE;
-
-	if (args->regs && user_mode_vm(args->regs))
-		return ret;
-
-	switch (val) {
-	case DIE_INT3:
-		if (kprobe_handler(args->regs))
-			ret = NOTIFY_STOP;
-		break;
-	case DIE_DEBUG:
-		if (post_kprobe_handler(args->regs))
-			ret = NOTIFY_STOP;
-		break;
-	case DIE_GPF:
-		/* kprobe_running() needs smp_processor_id() */
-		preempt_disable();
-		if (kprobe_running() &&
-		    kprobe_fault_handler(args->regs, args->trapnr))
-			ret = NOTIFY_STOP;
-		preempt_enable();
-		break;
-	default:
-		break;
-	}
-	return ret;
-}
-
-int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
-{
-	struct jprobe *jp = container_of(p, struct jprobe, kp);
-	unsigned long addr;
-	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-
-	kcb->jprobe_saved_regs = *regs;
-	kcb->jprobe_saved_sp = stack_addr(regs);
-	addr = (unsigned long)(kcb->jprobe_saved_sp);
-
-	/*
-	 * As Linus pointed out, gcc assumes that the callee
-	 * owns the argument space and could overwrite it, e.g.
-	 * tailcall optimization. So, to be absolutely safe
-	 * we also save and restore enough stack bytes to cover
-	 * the argument area.
-	 */
-	memcpy(kcb->jprobes_stack, (kprobe_opcode_t *)addr,
-			MIN_STACK_SIZE(addr));
-	regs->flags &= ~IF_MASK;
-	trace_hardirqs_off();
-	regs->ip = (unsigned long)(jp->entry);
-	return 1;
-}
-
-void __kprobes jprobe_return(void)
-{
-	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-
-	asm volatile ("       xchg   %%rbx,%%rsp     \n"
-		      "       int3			\n"
-		      "       .globl jprobe_return_end	\n"
-		      "       jprobe_return_end:	\n"
-		      "       nop			\n"::"b"
-		      (kcb->jprobe_saved_sp):"memory");
-}
-
-int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
-{
-	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-	u8 *addr = (u8 *) (regs->ip - 1);
-	struct jprobe *jp = container_of(p, struct jprobe, kp);
-
-	if ((addr > (u8 *) jprobe_return) && (addr < (u8 *) jprobe_return_end)) {
-		if (stack_addr(regs) != kcb->jprobe_saved_sp) {
-			struct pt_regs *saved_regs = &kcb->jprobe_saved_regs;
-			printk("current sp %p does not match saved sp %p\n",
-			       stack_addr(regs), kcb->jprobe_saved_sp);
-			printk("Saved registers for jprobe %p\n", jp);
-			show_registers(saved_regs);
-			printk("Current registers\n");
-			show_registers(regs);
-			BUG();
-		}
-		*regs = kcb->jprobe_saved_regs;
-		memcpy((kprobe_opcode_t *)(kcb->jprobe_saved_sp),
-		       kcb->jprobes_stack,
-		       MIN_STACK_SIZE(kcb->jprobe_saved_sp));
-		preempt_enable_no_resched();
-		return 1;
-	}
-	return 0;
-}
-
-int __init arch_init_kprobes(void)
-{
-	return 0;
-}
-
-int __kprobes arch_trampoline_kprobe(struct kprobe *p)
-{
-	return 0;
-}
diff --git a/include/asm-x86/kprobes.h b/include/asm-x86/kprobes.h
index b7bbd25ba2a6..6e6371a856e7 100644
--- a/include/asm-x86/kprobes.h
+++ b/include/asm-x86/kprobes.h
@@ -1,5 +1,98 @@
-#ifdef CONFIG_X86_32
-# include "kprobes_32.h"
-#else
-# include "kprobes_64.h"
-#endif
+#ifndef _ASM_KPROBES_H
+#define _ASM_KPROBES_H
+/*
+ *  Kernel Probes (KProbes)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2002, 2004
+ *
+ * See arch/x86/kernel/kprobes.c for x86 kprobes history.
+ */
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/percpu.h>
+
+#define  __ARCH_WANT_KPROBES_INSN_SLOT
+
+struct pt_regs;
+struct kprobe;
+
+typedef u8 kprobe_opcode_t;
+#define BREAKPOINT_INSTRUCTION	0xcc
+#define RELATIVEJUMP_INSTRUCTION 0xe9
+#define MAX_INSN_SIZE 16
+#define MAX_STACK_SIZE 64
+#define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \
+	(((unsigned long)current_thread_info()) + THREAD_SIZE \
+	 - (unsigned long)(ADDR))) \
+	? (MAX_STACK_SIZE) \
+	: (((unsigned long)current_thread_info()) + THREAD_SIZE \
+	   - (unsigned long)(ADDR)))
+
+#define ARCH_SUPPORTS_KRETPROBES
+#define flush_insn_slot(p)	do { } while (0)
+
+extern const int kretprobe_blacklist_size;
+
+void arch_remove_kprobe(struct kprobe *p);
+void kretprobe_trampoline(void);
+
+/* Architecture specific copy of original instruction*/
+struct arch_specific_insn {
+	/* copy of the original instruction */
+	kprobe_opcode_t *insn;
+	/*
+	 * boostable = -1: This instruction type is not boostable.
+	 * boostable = 0: This instruction type is boostable.
+	 * boostable = 1: This instruction has been boosted: we have
+	 * added a relative jump after the instruction copy in insn,
+	 * so no single-step and fixup are needed (unless there's
+	 * a post_handler or break_handler).
+	 */
+	int boostable;
+};
+
+struct prev_kprobe {
+	struct kprobe *kp;
+	unsigned long status;
+	unsigned long old_flags;
+	unsigned long saved_flags;
+};
+
+/* per-cpu kprobe control block */
+struct kprobe_ctlblk {
+	unsigned long kprobe_status;
+	unsigned long kprobe_old_flags;
+	unsigned long kprobe_saved_flags;
+	unsigned long *jprobe_saved_sp;
+	struct pt_regs jprobe_saved_regs;
+	kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE];
+	struct prev_kprobe prev_kprobe;
+};
+
+/* trap3/1 are intr gates for kprobes.  So, restore the status of IF,
+ * if necessary, before executing the original int3/1 (trap) handler.
+ */
+static inline void restore_interrupts(struct pt_regs *regs)
+{
+	if (regs->flags & IF_MASK)
+		local_irq_enable();
+}
+
+extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
+extern int kprobe_exceptions_notify(struct notifier_block *self,
+				    unsigned long val, void *data);
+#endif				/* _ASM_KPROBES_H */
diff --git a/include/asm-x86/kprobes_32.h b/include/asm-x86/kprobes_32.h
deleted file mode 100644
index 94dff09b2ebe..000000000000
--- a/include/asm-x86/kprobes_32.h
+++ /dev/null
@@ -1,102 +0,0 @@
-#ifndef _ASM_KPROBES_H
-#define _ASM_KPROBES_H
-/*
- *  Kernel Probes (KProbes)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (C) IBM Corporation, 2002, 2004
- *
- * 2002-Oct	Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel
- *		Probes initial implementation ( includes suggestions from
- *		Rusty Russell).
- * 2004-Oct	Prasanna S Panchamukhi <prasanna@in.ibm.com> and Jim Keniston
- *		kenistoj@us.ibm.com adopted from i386.
- */
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/percpu.h>
-
-#define  __ARCH_WANT_KPROBES_INSN_SLOT
-
-struct pt_regs;
-struct kprobe;
-
-typedef u8 kprobe_opcode_t;
-#define BREAKPOINT_INSTRUCTION	0xcc
-#define RELATIVEJUMP_INSTRUCTION 0xe9
-#define MAX_INSN_SIZE 16
-#define MAX_STACK_SIZE 64
-#define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \
-	(((unsigned long)current_thread_info()) + THREAD_SIZE \
-	 - (unsigned long)(ADDR))) \
-	? (MAX_STACK_SIZE) \
-	: (((unsigned long)current_thread_info()) + THREAD_SIZE \
-	   - (unsigned long)(ADDR)))
-
-#define ARCH_SUPPORTS_KRETPROBES
-#define flush_insn_slot(p)	do { } while (0)
-
-extern const int kretprobe_blacklist_size;
-
-void arch_remove_kprobe(struct kprobe *p);
-void kretprobe_trampoline(void);
-
-/* Architecture specific copy of original instruction*/
-struct arch_specific_insn {
-	/* copy of the original instruction */
-	kprobe_opcode_t *insn;
-	/*
-	 * boostable = -1: This instruction type is not boostable.
-	 * boostable = 0: This instruction type is boostable.
-	 * boostable = 1: This instruction has been boosted: we have
-	 * added a relative jump after the instruction copy in insn,
-	 * so no single-step and fixup are needed (unless there's
-	 * a post_handler or break_handler).
-	 */
-	int boostable;
-};
-
-struct prev_kprobe {
-	struct kprobe *kp;
-	unsigned long status;
-	unsigned long old_flags;
-	unsigned long saved_flags;
-};
-
-/* per-cpu kprobe control block */
-struct kprobe_ctlblk {
-	unsigned long kprobe_status;
-	unsigned long kprobe_old_flags;
-	unsigned long kprobe_saved_flags;
-	unsigned long *jprobe_saved_sp;
-	struct pt_regs jprobe_saved_regs;
-	kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE];
-	struct prev_kprobe prev_kprobe;
-};
-
-/* trap3/1 are intr gates for kprobes.  So, restore the status of IF,
- * if necessary, before executing the original int3/1 (trap) handler.
- */
-static inline void restore_interrupts(struct pt_regs *regs)
-{
-	if (regs->flags & IF_MASK)
-		local_irq_enable();
-}
-
-extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
-extern int kprobe_exceptions_notify(struct notifier_block *self,
-				    unsigned long val, void *data);
-#endif				/* _ASM_KPROBES_H */
diff --git a/include/asm-x86/kprobes_64.h b/include/asm-x86/kprobes_64.h
deleted file mode 100644
index 94dff09b2ebe..000000000000
--- a/include/asm-x86/kprobes_64.h
+++ /dev/null
@@ -1,102 +0,0 @@
-#ifndef _ASM_KPROBES_H
-#define _ASM_KPROBES_H
-/*
- *  Kernel Probes (KProbes)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (C) IBM Corporation, 2002, 2004
- *
- * 2002-Oct	Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel
- *		Probes initial implementation ( includes suggestions from
- *		Rusty Russell).
- * 2004-Oct	Prasanna S Panchamukhi <prasanna@in.ibm.com> and Jim Keniston
- *		kenistoj@us.ibm.com adopted from i386.
- */
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/percpu.h>
-
-#define  __ARCH_WANT_KPROBES_INSN_SLOT
-
-struct pt_regs;
-struct kprobe;
-
-typedef u8 kprobe_opcode_t;
-#define BREAKPOINT_INSTRUCTION	0xcc
-#define RELATIVEJUMP_INSTRUCTION 0xe9
-#define MAX_INSN_SIZE 16
-#define MAX_STACK_SIZE 64
-#define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \
-	(((unsigned long)current_thread_info()) + THREAD_SIZE \
-	 - (unsigned long)(ADDR))) \
-	? (MAX_STACK_SIZE) \
-	: (((unsigned long)current_thread_info()) + THREAD_SIZE \
-	   - (unsigned long)(ADDR)))
-
-#define ARCH_SUPPORTS_KRETPROBES
-#define flush_insn_slot(p)	do { } while (0)
-
-extern const int kretprobe_blacklist_size;
-
-void arch_remove_kprobe(struct kprobe *p);
-void kretprobe_trampoline(void);
-
-/* Architecture specific copy of original instruction*/
-struct arch_specific_insn {
-	/* copy of the original instruction */
-	kprobe_opcode_t *insn;
-	/*
-	 * boostable = -1: This instruction type is not boostable.
-	 * boostable = 0: This instruction type is boostable.
-	 * boostable = 1: This instruction has been boosted: we have
-	 * added a relative jump after the instruction copy in insn,
-	 * so no single-step and fixup are needed (unless there's
-	 * a post_handler or break_handler).
-	 */
-	int boostable;
-};
-
-struct prev_kprobe {
-	struct kprobe *kp;
-	unsigned long status;
-	unsigned long old_flags;
-	unsigned long saved_flags;
-};
-
-/* per-cpu kprobe control block */
-struct kprobe_ctlblk {
-	unsigned long kprobe_status;
-	unsigned long kprobe_old_flags;
-	unsigned long kprobe_saved_flags;
-	unsigned long *jprobe_saved_sp;
-	struct pt_regs jprobe_saved_regs;
-	kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE];
-	struct prev_kprobe prev_kprobe;
-};
-
-/* trap3/1 are intr gates for kprobes.  So, restore the status of IF,
- * if necessary, before executing the original int3/1 (trap) handler.
- */
-static inline void restore_interrupts(struct pt_regs *regs)
-{
-	if (regs->flags & IF_MASK)
-		local_irq_enable();
-}
-
-extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
-extern int kprobe_exceptions_notify(struct notifier_block *self,
-				    unsigned long val, void *data);
-#endif				/* _ASM_KPROBES_H */
-- 
cgit v1.2.3-59-g8ed1b


From bdb4f156064e5f627213af82292eb8b5cf2dc5aa Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@novell.com>
Date: Wed, 30 Jan 2008 13:31:21 +0100
Subject: i386: hard_{en,dis}able_TSC can be static

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_32.c   | 4 ++--
 include/asm-x86/processor_32.h | 2 --
 2 files changed, 2 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 48e92e3758c2..40cc29695eba 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -588,7 +588,7 @@ int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
 }
 
 #ifdef CONFIG_SECCOMP
-void hard_disable_TSC(void)
+static void hard_disable_TSC(void)
 {
 	write_cr4(read_cr4() | X86_CR4_TSD);
 }
@@ -603,7 +603,7 @@ void disable_TSC(void)
 		hard_disable_TSC();
 	preempt_enable();
 }
-void hard_enable_TSC(void)
+static void hard_enable_TSC(void)
 {
 	write_cr4(read_cr4() & ~X86_CR4_TSD);
 }
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index e5056ab9dd9f..a5560a3b57ef 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -206,9 +206,7 @@ extern int bootloader_type;
 
 #define HAVE_ARCH_PICK_MMAP_LAYOUT
 
-extern void hard_disable_TSC(void);
 extern void disable_TSC(void);
-extern void hard_enable_TSC(void);
 
 /*
  * Size of io_bitmap.
-- 
cgit v1.2.3-59-g8ed1b


From 22f5991c85dec1281cce5c8df9ee92b43b1738c8 Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@novell.com>
Date: Wed, 30 Jan 2008 13:31:23 +0100
Subject: x86-64: honor notify_die() returning NOTIFY_STOP

This requires making die() return a value, making its callers honor
this (and be prepared that it may return), and making oops_end() have
two additional parameters.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/mcheck/mce_64.c |  8 ++++----
 arch/x86/kernel/traps_64.c          | 23 +++++++++++++++--------
 arch/x86/mm/fault_64.c              | 12 ++++++------
 include/asm-x86/kdebug.h            |  4 ++--
 4 files changed, 27 insertions(+), 20 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index 8cd47fe2ef2c..bc6e35153d83 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -192,10 +192,10 @@ void do_machine_check(struct pt_regs * regs, long error_code)
 
 	atomic_inc(&mce_entry);
 
-	if (regs)
-		notify_die(DIE_NMI, "machine check", regs, error_code, 18,
-			   SIGKILL);
-	if (!banks)
+	if ((regs
+	     && notify_die(DIE_NMI, "machine check", regs, error_code,
+			   18, SIGKILL) == NOTIFY_STOP)
+	    || !banks)
 		goto out2;
 
 	memset(&m, 0, sizeof(struct mce));
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 1a12a81fdb1b..cf90ceb48f5f 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -488,7 +488,7 @@ unsigned __kprobes long oops_begin(void)
 	return flags;
 }
 
-void __kprobes oops_end(unsigned long flags)
+void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
 { 
 	die_owner = -1;
 	bust_spinlocks(0);
@@ -497,12 +497,17 @@ void __kprobes oops_end(unsigned long flags)
 		/* Nest count reaches zero, release the lock. */
 		__raw_spin_unlock(&die_lock);
 	raw_local_irq_restore(flags);
+	if (!regs) {
+		oops_exit();
+		return;
+	}
 	if (panic_on_oops)
 		panic("Fatal exception");
 	oops_exit();
+	do_exit(signr);
 }
 
-void __kprobes __die(const char * str, struct pt_regs * regs, long err)
+int __kprobes __die(const char * str, struct pt_regs * regs, long err)
 {
 	static int die_counter;
 	printk(KERN_EMERG "%s: %04lx [%u] ", str, err & 0xffff,++die_counter);
@@ -516,7 +521,8 @@ void __kprobes __die(const char * str, struct pt_regs * regs, long err)
 	printk("DEBUG_PAGEALLOC");
 #endif
 	printk("\n");
-	notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV);
+	if (notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV) == NOTIFY_STOP)
+		return 1;
 	show_registers(regs);
 	add_taint(TAINT_DIE);
 	/* Executive summary in case the oops scrolled away */
@@ -525,6 +531,7 @@ void __kprobes __die(const char * str, struct pt_regs * regs, long err)
 	printk(" RSP <%016lx>\n", regs->sp);
 	if (kexec_should_crash(current))
 		crash_kexec(regs);
+	return 0;
 }
 
 void die(const char * str, struct pt_regs * regs, long err)
@@ -534,9 +541,9 @@ void die(const char * str, struct pt_regs * regs, long err)
 	if (!user_mode(regs))
 		report_bug(regs->ip, regs);
 
-	__die(str, regs, err);
-	oops_end(flags);
-	do_exit(SIGSEGV); 
+	if (__die(str, regs, err))
+		regs = NULL;
+	oops_end(flags, regs, SIGSEGV);
 }
 
 void __kprobes die_nmi(char *str, struct pt_regs *regs, int do_panic)
@@ -553,10 +560,10 @@ void __kprobes die_nmi(char *str, struct pt_regs *regs, int do_panic)
 		crash_kexec(regs);
 	if (do_panic || panic_on_oops)
 		panic("Non maskable interrupt");
-	oops_end(flags);
+	oops_end(flags, NULL, SIGBUS);
 	nmi_exit();
 	local_irq_enable();
-	do_exit(SIGSEGV);
+	do_exit(SIGBUS);
 }
 
 static void __kprobes do_trap(int trapnr, int signr, char *str,
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 162050d4e5a3..121c7bda6297 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -227,9 +227,9 @@ static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
 	tsk->thread.cr2 = address;
 	tsk->thread.trap_no = 14;
 	tsk->thread.error_code = error_code;
-	__die("Bad pagetable", regs, error_code);
-	oops_end(flags);
-	do_exit(SIGKILL);
+	if (__die("Bad pagetable", regs, error_code))
+		regs = NULL;
+	oops_end(flags, regs, SIGKILL);
 }
 
 /*
@@ -541,11 +541,11 @@ no_context:
 	tsk->thread.cr2 = address;
 	tsk->thread.trap_no = 14;
 	tsk->thread.error_code = error_code;
-	__die("Oops", regs, error_code);
+	if (__die("Oops", regs, error_code))
+		regs = NULL;
 	/* Executive summary in case the body of the oops scrolled away */
 	printk(KERN_EMERG "CR2: %016lx\n", address);
-	oops_end(flags);
-	do_exit(SIGKILL);
+	oops_end(flags, regs, SIGKILL);
 
 /*
  * We ran out of memory, or some other thing happened to us that made
diff --git a/include/asm-x86/kdebug.h b/include/asm-x86/kdebug.h
index 49e5c91d490c..a5e5e3b7eb23 100644
--- a/include/asm-x86/kdebug.h
+++ b/include/asm-x86/kdebug.h
@@ -25,7 +25,7 @@ enum die_val {
 extern void early_printk(const char *fmt, ...) __attribute__((format(printf,1,2)));
 extern void printk_address(unsigned long address);
 extern void die(const char *,struct pt_regs *,long);
-extern void __die(const char *,struct pt_regs *,long);
+extern int __must_check __die(const char *, struct pt_regs *, long);
 extern void show_registers(struct pt_regs *regs);
 extern void __show_registers(struct pt_regs *, int all);
 extern void show_trace(struct task_struct *, struct pt_regs *, unsigned long *);
@@ -33,6 +33,6 @@ extern void __show_regs(struct pt_regs *regs);
 extern void show_regs(struct pt_regs *regs);
 extern void dump_pagetable(unsigned long);
 extern unsigned long oops_begin(void);
-extern void oops_end(unsigned long);
+extern void oops_end(unsigned long, struct pt_regs *, int signr);
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 3e7622f9d7807a0a826d042cafc211cd1a29448c Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@novell.com>
Date: Wed, 30 Jan 2008 13:31:23 +0100
Subject: x86: move to .rodata/.init.data

The array is never written, and on 64-bits it's not even being used
past initial boot.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/entry_32.S  | 2 +-
 arch/x86/kernel/i8259_64.c  | 2 +-
 include/asm-x86/hw_irq_32.h | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 6a474e1028c7..be5c31d04884 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -583,7 +583,7 @@ END(syscall_badsys)
  * Build the entry stubs and pointer table with
  * some assembler magic.
  */
-.data
+.section .rodata,"a"
 ENTRY(interrupt)
 .text
 
diff --git a/arch/x86/kernel/i8259_64.c b/arch/x86/kernel/i8259_64.c
index be82b1217691..99c8406ae253 100644
--- a/arch/x86/kernel/i8259_64.c
+++ b/arch/x86/kernel/i8259_64.c
@@ -77,7 +77,7 @@ BUILD_16_IRQS(0xc) BUILD_16_IRQS(0xd) BUILD_16_IRQS(0xe) BUILD_16_IRQS(0xf)
 	IRQ(x,c), IRQ(x,d), IRQ(x,e), IRQ(x,f)
 
 /* for the irq vectors */
-static void (*interrupt[NR_VECTORS - FIRST_EXTERNAL_VECTOR])(void) = {
+static void (*__initdata interrupt[NR_VECTORS - FIRST_EXTERNAL_VECTOR])(void) = {
 					  IRQLIST_16(0x2), IRQLIST_16(0x3),
 	IRQLIST_16(0x4), IRQLIST_16(0x5), IRQLIST_16(0x6), IRQLIST_16(0x7),
 	IRQLIST_16(0x8), IRQLIST_16(0x9), IRQLIST_16(0xa), IRQLIST_16(0xb),
diff --git a/include/asm-x86/hw_irq_32.h b/include/asm-x86/hw_irq_32.h
index b93e35a708ac..6d65fbb6358b 100644
--- a/include/asm-x86/hw_irq_32.h
+++ b/include/asm-x86/hw_irq_32.h
@@ -26,7 +26,7 @@
  * Interrupt entry/exit code at both C and assembly level
  */
 
-extern void (*interrupt[NR_IRQS])(void);
+extern void (*const interrupt[NR_IRQS])(void);
 
 #ifdef CONFIG_SMP
 void reschedule_interrupt(void);
-- 
cgit v1.2.3-59-g8ed1b


From cae4595764cb3b08f6517e99bac1e3862854b1a1 Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@novell.com>
Date: Wed, 30 Jan 2008 13:31:23 +0100
Subject: x86: make __{save,restore}_processor_state static

.. allowing to remove their declarations from a global include file
(the symbols don't exist for anything but x86).

Likewise for 64-bits' fix_processor_context(), just that that one was
properly declared in an arch-specific header.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/suspend_64.c | 8 +++++---
 arch/x86/power/cpu.c         | 4 ++--
 include/asm-x86/suspend_64.h | 2 --
 include/linux/suspend.h      | 3 ---
 4 files changed, 7 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/suspend_64.c b/arch/x86/kernel/suspend_64.c
index 279c25775d19..09199511c256 100644
--- a/arch/x86/kernel/suspend_64.c
+++ b/arch/x86/kernel/suspend_64.c
@@ -17,6 +17,8 @@
 /* References to section boundaries */
 extern const void __nosave_begin, __nosave_end;
 
+static void fix_processor_context(void);
+
 struct saved_context saved_context;
 
 /**
@@ -34,7 +36,7 @@ struct saved_context saved_context;
  *	needed by kernel A, so that it can operate correctly after the resume
  *	regardless of what kernel B does in the meantime.
  */
-void __save_processor_state(struct saved_context *ctxt)
+static void __save_processor_state(struct saved_context *ctxt)
 {
 	kernel_fpu_begin();
 
@@ -89,7 +91,7 @@ static void do_fpu_end(void)
  *		by __save_processor_state()
  *	@ctxt - structure to load the registers contents from
  */
-void __restore_processor_state(struct saved_context *ctxt)
+static void __restore_processor_state(struct saved_context *ctxt)
 {
 	/*
 	 * control registers
@@ -133,7 +135,7 @@ void restore_processor_state(void)
 	__restore_processor_state(&saved_context);
 }
 
-void fix_processor_context(void)
+static void fix_processor_context(void)
 {
 	int cpu = smp_processor_id();
 	struct tss_struct *t = &per_cpu(init_tss, cpu);
diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
index 5a98dc35addf..efcf620d1439 100644
--- a/arch/x86/power/cpu.c
+++ b/arch/x86/power/cpu.c
@@ -19,7 +19,7 @@ unsigned long saved_context_esp, saved_context_ebp;
 unsigned long saved_context_esi, saved_context_edi;
 unsigned long saved_context_eflags;
 
-void __save_processor_state(struct saved_context *ctxt)
+static void __save_processor_state(struct saved_context *ctxt)
 {
 	mtrr_save_fixed_ranges(NULL);
 	kernel_fpu_begin();
@@ -86,7 +86,7 @@ static void fix_processor_context(void)
 
 }
 
-void __restore_processor_state(struct saved_context *ctxt)
+static void __restore_processor_state(struct saved_context *ctxt)
 {
 	/*
 	 * control registers
diff --git a/include/asm-x86/suspend_64.h b/include/asm-x86/suspend_64.h
index 4404668f9aa4..2eb92cb81a0d 100644
--- a/include/asm-x86/suspend_64.h
+++ b/include/asm-x86/suspend_64.h
@@ -45,8 +45,6 @@ struct saved_context {
 #define loaddebug(thread,register) \
 	set_debugreg((thread)->debugreg##register, register)
 
-extern void fix_processor_context(void);
-
 /* routines for saving/restoring kernel state */
 extern int acpi_save_state_mem(void);
 extern char core_restore_code;
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 4360e0816956..40280df2a3db 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -211,9 +211,6 @@ static inline int hibernate(void) { return -ENOSYS; }
 #ifdef CONFIG_PM_SLEEP
 void save_processor_state(void);
 void restore_processor_state(void);
-struct saved_context;
-void __save_processor_state(struct saved_context *ctxt);
-void __restore_processor_state(struct saved_context *ctxt);
 
 /* kernel/power/main.c */
 extern struct blocking_notifier_head pm_chain_head;
-- 
cgit v1.2.3-59-g8ed1b


From e94271017f0933b29362a3c9dea5a6b9d04d98e1 Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@novell.com>
Date: Wed, 30 Jan 2008 13:31:24 +0100
Subject: x86: adjust enable_NMI_through_LVT0()

Its previous use in a call to on_each_cpu() was pointless, as at the
time that code gets executed only one CPU is online. Further, the
function can be __cpuinit, and for this to work without
CONFIG_HOTPLUG_CPU setup_nmi() must also get an attribute (this one
can even be __init; on 64-bits check_timer() also was lacking that
attribute).

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic_32.c    | 2 +-
 arch/x86/kernel/apic_64.c    | 2 +-
 arch/x86/kernel/io_apic_32.c | 4 ++--
 arch/x86/kernel/io_apic_64.c | 6 +++---
 arch/x86/kernel/smpboot_32.c | 2 +-
 arch/x86/kernel/smpboot_64.c | 2 +-
 include/asm-x86/apic.h       | 2 +-
 7 files changed, 10 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 69a13d127da3..4c014fca2057 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -152,7 +152,7 @@ u32 safe_apic_wait_icr_idle(void)
 /**
  * enable_NMI_through_LVT0 - enable NMI through local vector table 0
  */
-void enable_NMI_through_LVT0 (void * dummy)
+void __cpuinit enable_NMI_through_LVT0(void)
 {
 	unsigned int v = APIC_DM_NMI;
 
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index ab4ae50399fd..47b8ef51dde0 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -130,7 +130,7 @@ u32 safe_apic_wait_icr_idle(void)
 /**
  * enable_NMI_through_LVT0 - enable NMI through local vector table 0
  */
-void enable_NMI_through_LVT0(void *dummy)
+void __cpuinit enable_NMI_through_LVT0(void)
 {
 	unsigned int v;
 
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index 76f11c3e3906..0d204237489e 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -2078,7 +2078,7 @@ static struct irq_chip lapic_chip __read_mostly = {
 	.eoi		= ack_apic,
 };
 
-static void setup_nmi (void)
+static void __init setup_nmi(void)
 {
 	/*
  	 * Dirty trick to enable the NMI watchdog ...
@@ -2091,7 +2091,7 @@ static void setup_nmi (void)
 	 */ 
 	apic_printk(APIC_VERBOSE, KERN_INFO "activating NMI Watchdog ...");
 
-	on_each_cpu(enable_NMI_through_LVT0, NULL, 1, 1);
+	enable_NMI_through_LVT0();
 
 	apic_printk(APIC_VERBOSE, " done.\n");
 }
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index fa70005be5e8..f914d84a21da 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -1566,7 +1566,7 @@ static struct hw_interrupt_type lapic_irq_type __read_mostly = {
 	.end = end_lapic_irq,
 };
 
-static void setup_nmi (void)
+static void __init setup_nmi(void)
 {
 	/*
  	 * Dirty trick to enable the NMI watchdog ...
@@ -1579,7 +1579,7 @@ static void setup_nmi (void)
 	 */ 
 	printk(KERN_INFO "activating NMI Watchdog ...");
 
-	enable_NMI_through_LVT0(NULL);
+	enable_NMI_through_LVT0();
 
 	printk(" done.\n");
 }
@@ -1655,7 +1655,7 @@ static inline void unlock_ExtINT_logic(void)
  *
  * FIXME: really need to revamp this for modern platforms only.
  */
-static inline void check_timer(void)
+static inline void __init check_timer(void)
 {
 	struct irq_cfg *cfg = irq_cfg + 0;
 	int apic1, pin1, apic2, pin2;
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 0f294d6e22cf..2034332ad080 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -404,7 +404,7 @@ static void __cpuinit start_secondary(void *unused)
 	setup_secondary_clock();
 	if (nmi_watchdog == NMI_IO_APIC) {
 		disable_8259A_irq(0);
-		enable_NMI_through_LVT0(NULL);
+		enable_NMI_through_LVT0();
 		enable_8259A_irq(0);
 	}
 	/*
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index cb73c4da87fc..4c03ddccd681 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -337,7 +337,7 @@ void __cpuinit start_secondary(void)
 
 	if (nmi_watchdog == NMI_IO_APIC) {
 		disable_8259A_irq(0);
-		enable_NMI_through_LVT0(NULL);
+		enable_NMI_through_LVT0();
 		enable_8259A_irq(0);
 	}
 
diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h
index 72bf09cf13ab..bcfc07fd3661 100644
--- a/include/asm-x86/apic.h
+++ b/include/asm-x86/apic.h
@@ -117,7 +117,7 @@ extern void init_apic_mappings(void);
 extern void setup_boot_APIC_clock(void);
 extern void setup_secondary_APIC_clock(void);
 extern int APIC_init_uniprocessor(void);
-extern void enable_NMI_through_LVT0(void *dummy);
+extern void enable_NMI_through_LVT0(void);
 
 /*
  * On 32bit this is mach-xxx local
-- 
cgit v1.2.3-59-g8ed1b


From c6b48324325ffb637c3aafb2d795408febf40198 Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Wed, 30 Jan 2008 13:31:25 +0100
Subject: x86, kexec: force x86 arches to boot kdump kernels on boot cpu

Recently a kdump bug was discovered in which a system would hang inside
calibrate_delay during the booting of the kdump kernel.  This was caused
by the fact that the jiffies counter was not being incremented during
timer calibration.  The root cause of this problem was found to be a
bios misconfiguration of the hypertransport bus.  On system affected by
this hang, the bios had assigned APIC ids which used extended apic bits
(more than the nominal 4 bit ids's), but failed to configure bit 17 of
the hypertransport transaction config register, which indicated that the
mask for the destination field of interrupt packets accross the ht bus
(see section 3.3.9 of
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/26094.PDF).
If a crash occurs on a cpu with an APIC id that extends beyond 4 bits,
it will not recieve interrupts during the kdump kernel boot, and this
hang will be the result.  The fix is to add this patch, whcih add an
early pci quirk check, to forcibly enable this bit in the httcfg
register.  This enables all cpus on a system to receive interrupts, and
allows kdump kernel bootup to procede normally.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/early-quirks.c | 86 +++++++++++++++++++++++++++++++-----------
 1 file changed, 65 insertions(+), 21 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 88bb83ec895f..b55258e49208 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -21,7 +21,30 @@
 #include <asm/gart.h>
 #endif
 
-static void __init via_bugs(void)
+static void __init fix_hypertransport_config(int num, int slot, int func)
+{
+	u32 htcfg;
+	/*
+	 * we found a hypertransport bus
+	 * make sure that we are broadcasting
+	 * interrupts to all cpus on the ht bus
+	 * if we're using extended apic ids
+	 */
+	htcfg = read_pci_config(num, slot, func, 0x68);
+	if (htcfg & (1 << 18)) {
+		printk(KERN_INFO "Detected use of extended apic ids on hypertransport bus\n");
+		if ((htcfg & (1 << 17)) == 0) {
+			printk(KERN_INFO "Enabling hypertransport extended apic interrupt broadcast\n");
+			printk(KERN_INFO "Note this is a bios bug, please contact your hw vendor\n");
+			htcfg |= (1 << 17);
+			write_pci_config(num, slot, func, 0x68, htcfg);
+		}
+	}
+
+
+}
+
+static void __init via_bugs(int  num, int slot, int func)
 {
 #ifdef CONFIG_GART_IOMMU
 	if ((end_pfn > MAX_DMA32_PFN ||  force_iommu) &&
@@ -44,7 +67,7 @@ static int __init nvidia_hpet_check(struct acpi_table_header *header)
 #endif /* CONFIG_X86_IO_APIC */
 #endif /* CONFIG_ACPI */
 
-static void __init nvidia_bugs(void)
+static void __init nvidia_bugs(int num, int slot, int func)
 {
 #ifdef CONFIG_ACPI
 #ifdef CONFIG_X86_IO_APIC
@@ -72,7 +95,7 @@ static void __init nvidia_bugs(void)
 
 }
 
-static void __init ati_bugs(void)
+static void __init ati_bugs(int num, int slot, int func)
 {
 #ifdef CONFIG_X86_IO_APIC
 	if (timer_over_8254 == 1) {
@@ -83,15 +106,27 @@ static void __init ati_bugs(void)
 #endif
 }
 
+#define QFLAG_APPLY_ONCE 	0x1
+#define QFLAG_APPLIED		0x2
+#define QFLAG_DONE		(QFLAG_APPLY_ONCE|QFLAG_APPLIED)
 struct chipset {
-	u16 vendor;
-	void (*f)(void);
+	u32 vendor;
+	u32 device;
+	u32 class;
+	u32 class_mask;
+	u32 flags;
+	void (*f)(int num, int slot, int func);
 };
 
 static struct chipset early_qrk[] __initdata = {
-	{ PCI_VENDOR_ID_NVIDIA, nvidia_bugs },
-	{ PCI_VENDOR_ID_VIA, via_bugs },
-	{ PCI_VENDOR_ID_ATI, ati_bugs },
+	{ PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
+	  PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, nvidia_bugs },
+	{ PCI_VENDOR_ID_VIA, PCI_ANY_ID,
+	  PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, via_bugs },
+	{ PCI_VENDOR_ID_ATI, PCI_ANY_ID,
+	  PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, ati_bugs },
+	{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB,
+	  PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, fix_hypertransport_config },
 	{}
 };
 
@@ -106,27 +141,36 @@ void __init early_quirks(void)
 	for (num = 0; num < 32; num++) {
 		for (slot = 0; slot < 32; slot++) {
 			for (func = 0; func < 8; func++) {
-				u32 class;
-				u32 vendor;
+				u16 class;
+				u16 vendor;
+				u16 device;
 				u8 type;
 				int i;
-				class = read_pci_config(num,slot,func,
+
+				class = read_pci_config_16(num,slot,func,
 							PCI_CLASS_REVISION);
-				if (class == 0xffffffff)
+				if (class == 0xffff)
 					break;
 
-				if ((class >> 16) != PCI_CLASS_BRIDGE_PCI)
-					continue;
-
-				vendor = read_pci_config(num, slot, func,
+				vendor = read_pci_config_16(num, slot, func,
 							 PCI_VENDOR_ID);
-				vendor &= 0xffff;
 
-				for (i = 0; early_qrk[i].f; i++)
-					if (early_qrk[i].vendor == vendor) {
-						early_qrk[i].f();
-						return;
+				device = read_pci_config_16(num, slot, func,
+							PCI_DEVICE_ID);
+
+				for(i=0;early_qrk[i].f != NULL;i++) {
+					if (((early_qrk[i].vendor == PCI_ANY_ID) ||
+					    (early_qrk[i].vendor == vendor)) &&
+					   ((early_qrk[i].device == PCI_ANY_ID) ||
+					    (early_qrk[i].device == device)) &&
+					   (!((early_qrk[i].class ^ class) &
+					     early_qrk[i].class_mask))) {
+						if ((early_qrk[i].flags & QFLAG_DONE) != QFLAG_DONE)
+							early_qrk[i].f(num, slot, func);
+						early_qrk[i].flags |= QFLAG_APPLIED;
+
 					}
+				}
 
 				type = read_pci_config_byte(num, slot, func,
 							    PCI_HEADER_TYPE);
-- 
cgit v1.2.3-59-g8ed1b


From 3b095a04e71243bd0f1679c04f1e8d73a3c9c5a9 Mon Sep 17 00:00:00 2001
From: Cyrill Gorcunov <gorcunov@gmail.com>
Date: Wed, 30 Jan 2008 13:31:26 +0100
Subject: x86: cleanup i387_32.c according to checkpatch

clean up checkpatch warnings/errors on i387_32.c

The old and new i387_32.s (asm listings) were checked with diff to
be identical so it's safe to apply this patch.

Signed-off-by: Cyrill Gorcunov <gorunov@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/i387_32.c | 291 ++++++++++++++++++++++++----------------------
 1 file changed, 149 insertions(+), 142 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/i387_32.c b/arch/x86/kernel/i387_32.c
index 7d2e12f6c78b..bebe03463461 100644
--- a/arch/x86/kernel/i387_32.c
+++ b/arch/x86/kernel/i387_32.c
@@ -29,11 +29,13 @@ void mxcsr_feature_mask_init(void)
 	unsigned long mask = 0;
 	clts();
 	if (cpu_has_fxsr) {
-		memset(&current->thread.i387.fxsave, 0, sizeof(struct i387_fxsave_struct));
-		asm volatile("fxsave %0" : : "m" (current->thread.i387.fxsave)); 
+		memset(&current->thread.i387.fxsave, 0,
+		       sizeof(struct i387_fxsave_struct));
+		asm volatile("fxsave %0" : : "m" (current->thread.i387.fxsave));
 		mask = current->thread.i387.fxsave.mxcsr_mask;
-		if (mask == 0) mask = 0x0000ffbf;
-	} 
+		if (mask == 0)
+			mask = 0x0000ffbf;
+	}
 	mxcsr_feature_mask &= mask;
 	stts();
 }
@@ -47,18 +49,21 @@ void mxcsr_feature_mask_init(void)
 void init_fpu(struct task_struct *tsk)
 {
 	if (cpu_has_fxsr) {
-		memset(&tsk->thread.i387.fxsave, 0, sizeof(struct i387_fxsave_struct));
+		memset(&tsk->thread.i387.fxsave, 0,
+		       sizeof(struct i387_fxsave_struct));
 		tsk->thread.i387.fxsave.cwd = 0x37f;
 		if (cpu_has_xmm)
 			tsk->thread.i387.fxsave.mxcsr = 0x1f80;
 	} else {
-		memset(&tsk->thread.i387.fsave, 0, sizeof(struct i387_fsave_struct));
+		memset(&tsk->thread.i387.fsave, 0,
+		       sizeof(struct i387_fsave_struct));
 		tsk->thread.i387.fsave.cwd = 0xffff037fu;
 		tsk->thread.i387.fsave.swd = 0xffff0000u;
 		tsk->thread.i387.fsave.twd = 0xffffffffu;
 		tsk->thread.i387.fsave.fos = 0xffff0000u;
 	}
-	/* only the device not available exception or ptrace can call init_fpu */
+	/* only the device not available exception
+	 * or ptrace can call init_fpu */
 	set_stopped_child_used_math(tsk);
 }
 
@@ -83,21 +88,22 @@ EXPORT_SYMBOL_GPL(kernel_fpu_begin);
  * FPU tag word conversions.
  */
 
-static inline unsigned short twd_i387_to_fxsr( unsigned short twd )
+static inline unsigned short twd_i387_to_fxsr(unsigned short twd)
 {
 	unsigned int tmp; /* to avoid 16 bit prefixes in the code */
- 
+
 	/* Transform each pair of bits into 01 (valid) or 00 (empty) */
-        tmp = ~twd;
-        tmp = (tmp | (tmp>>1)) & 0x5555; /* 0V0V0V0V0V0V0V0V */
-        /* and move the valid bits to the lower byte. */
-        tmp = (tmp | (tmp >> 1)) & 0x3333; /* 00VV00VV00VV00VV */
-        tmp = (tmp | (tmp >> 2)) & 0x0f0f; /* 0000VVVV0000VVVV */
-        tmp = (tmp | (tmp >> 4)) & 0x00ff; /* 00000000VVVVVVVV */
-        return tmp;
+	tmp = ~twd;
+	tmp = (tmp | (tmp >> 1)) & 0x5555; /* 0V0V0V0V0V0V0V0V */
+	/* and move the valid bits to the lower byte. */
+	tmp = (tmp | (tmp >> 1)) & 0x3333; /* 00VV00VV00VV00VV */
+	tmp = (tmp | (tmp >> 2)) & 0x0f0f; /* 0000VVVV0000VVVV */
+	tmp = (tmp | (tmp >> 4)) & 0x00ff; /* 00000000VVVVVVVV */
+
+	return tmp;
 }
 
-static inline unsigned long twd_fxsr_to_i387( struct i387_fxsave_struct *fxsave )
+static inline unsigned long twd_fxsr_to_i387(struct i387_fxsave_struct *fxsave)
 {
 	struct _fpxreg *st = NULL;
 	unsigned long tos = (fxsave->swd >> 11) & 7;
@@ -108,26 +114,26 @@ static inline unsigned long twd_fxsr_to_i387( struct i387_fxsave_struct *fxsave
 
 #define FPREG_ADDR(f, n)	((void *)&(f)->st_space + (n) * 16);
 
-	for ( i = 0 ; i < 8 ; i++ ) {
-		if ( twd & 0x1 ) {
-			st = FPREG_ADDR( fxsave, (i - tos) & 7 );
+	for (i = 0; i < 8; i++) {
+		if (twd & 0x1) {
+			st = FPREG_ADDR(fxsave, (i - tos) & 7);
 
-			switch ( st->exponent & 0x7fff ) {
+			switch (st->exponent & 0x7fff) {
 			case 0x7fff:
 				tag = 2;		/* Special */
 				break;
 			case 0x0000:
-				if ( !st->significand[0] &&
-				     !st->significand[1] &&
-				     !st->significand[2] &&
-				     !st->significand[3] ) {
+				if (!st->significand[0] &&
+				    !st->significand[1] &&
+				    !st->significand[2] &&
+				    !st->significand[3]) {
 					tag = 1;	/* Zero */
 				} else {
 					tag = 2;	/* Special */
 				}
 				break;
 			default:
-				if ( st->significand[3] & 0x8000 ) {
+				if (st->significand[3] & 0x8000) {
 					tag = 0;	/* Valid */
 				} else {
 					tag = 2;	/* Special */
@@ -147,18 +153,18 @@ static inline unsigned long twd_fxsr_to_i387( struct i387_fxsave_struct *fxsave
  * FPU state interaction.
  */
 
-unsigned short get_fpu_cwd( struct task_struct *tsk )
+unsigned short get_fpu_cwd(struct task_struct *tsk)
 {
-	if ( cpu_has_fxsr ) {
+	if (cpu_has_fxsr) {
 		return tsk->thread.i387.fxsave.cwd;
 	} else {
 		return (unsigned short)tsk->thread.i387.fsave.cwd;
 	}
 }
 
-unsigned short get_fpu_swd( struct task_struct *tsk )
+unsigned short get_fpu_swd(struct task_struct *tsk)
 {
-	if ( cpu_has_fxsr ) {
+	if (cpu_has_fxsr) {
 		return tsk->thread.i387.fxsave.swd;
 	} else {
 		return (unsigned short)tsk->thread.i387.fsave.swd;
@@ -166,9 +172,9 @@ unsigned short get_fpu_swd( struct task_struct *tsk )
 }
 
 #if 0
-unsigned short get_fpu_twd( struct task_struct *tsk )
+unsigned short get_fpu_twd(struct task_struct *tsk)
 {
-	if ( cpu_has_fxsr ) {
+	if (cpu_has_fxsr) {
 		return tsk->thread.i387.fxsave.twd;
 	} else {
 		return (unsigned short)tsk->thread.i387.fsave.twd;
@@ -176,9 +182,9 @@ unsigned short get_fpu_twd( struct task_struct *tsk )
 }
 #endif  /*  0  */
 
-unsigned short get_fpu_mxcsr( struct task_struct *tsk )
+unsigned short get_fpu_mxcsr(struct task_struct *tsk)
 {
-	if ( cpu_has_xmm ) {
+	if (cpu_has_xmm) {
 		return tsk->thread.i387.fxsave.mxcsr;
 	} else {
 		return 0x1f80;
@@ -187,27 +193,27 @@ unsigned short get_fpu_mxcsr( struct task_struct *tsk )
 
 #if 0
 
-void set_fpu_cwd( struct task_struct *tsk, unsigned short cwd )
+void set_fpu_cwd(struct task_struct *tsk, unsigned short cwd)
 {
-	if ( cpu_has_fxsr ) {
+	if (cpu_has_fxsr) {
 		tsk->thread.i387.fxsave.cwd = cwd;
 	} else {
 		tsk->thread.i387.fsave.cwd = ((long)cwd | 0xffff0000u);
 	}
 }
 
-void set_fpu_swd( struct task_struct *tsk, unsigned short swd )
+void set_fpu_swd(struct task_struct *tsk, unsigned short swd)
 {
-	if ( cpu_has_fxsr ) {
+	if (cpu_has_fxsr) {
 		tsk->thread.i387.fxsave.swd = swd;
 	} else {
 		tsk->thread.i387.fsave.swd = ((long)swd | 0xffff0000u);
 	}
 }
 
-void set_fpu_twd( struct task_struct *tsk, unsigned short twd )
+void set_fpu_twd(struct task_struct *tsk, unsigned short twd)
 {
-	if ( cpu_has_fxsr ) {
+	if (cpu_has_fxsr) {
 		tsk->thread.i387.fxsave.twd = twd_i387_to_fxsr(twd);
 	} else {
 		tsk->thread.i387.fsave.twd = ((long)twd | 0xffff0000u);
@@ -220,8 +226,8 @@ void set_fpu_twd( struct task_struct *tsk, unsigned short twd )
  * FXSR floating point environment conversions.
  */
 
-static int convert_fxsr_to_user( struct _fpstate __user *buf,
-					struct i387_fxsave_struct *fxsave )
+static int convert_fxsr_to_user(struct _fpstate __user *buf,
+				struct i387_fxsave_struct *fxsave)
 {
 	unsigned long env[7];
 	struct _fpreg __user *to;
@@ -236,32 +242,32 @@ static int convert_fxsr_to_user( struct _fpstate __user *buf,
 	env[5] = fxsave->foo;
 	env[6] = fxsave->fos;
 
-	if ( __copy_to_user( buf, env, 7 * sizeof(unsigned long) ) )
+	if (__copy_to_user(buf, env, 7 * sizeof(unsigned long)))
 		return 1;
 
 	to = &buf->_st[0];
 	from = (struct _fpxreg *) &fxsave->st_space[0];
-	for ( i = 0 ; i < 8 ; i++, to++, from++ ) {
+	for (i = 0; i < 8; i++, to++, from++) {
 		unsigned long __user *t = (unsigned long __user *)to;
 		unsigned long *f = (unsigned long *)from;
 
 		if (__put_user(*f, t) ||
-				__put_user(*(f + 1), t + 1) ||
-				__put_user(from->exponent, &to->exponent))
+		    __put_user(*(f + 1), t + 1) ||
+		    __put_user(from->exponent, &to->exponent))
 			return 1;
 	}
 	return 0;
 }
 
-static int convert_fxsr_from_user( struct i387_fxsave_struct *fxsave,
-					  struct _fpstate __user *buf )
+static int convert_fxsr_from_user(struct i387_fxsave_struct *fxsave,
+				  struct _fpstate __user *buf)
 {
 	unsigned long env[7];
 	struct _fpxreg *to;
 	struct _fpreg __user *from;
 	int i;
 
-	if ( __copy_from_user( env, buf, 7 * sizeof(long) ) )
+	if (__copy_from_user(env, buf, 7 * sizeof(long)))
 		return 1;
 
 	fxsave->cwd = (unsigned short)(env[0] & 0xffff);
@@ -275,13 +281,13 @@ static int convert_fxsr_from_user( struct i387_fxsave_struct *fxsave,
 
 	to = (struct _fpxreg *) &fxsave->st_space[0];
 	from = &buf->_st[0];
-	for ( i = 0 ; i < 8 ; i++, to++, from++ ) {
+	for (i = 0; i < 8; i++, to++, from++) {
 		unsigned long *t = (unsigned long *)to;
 		unsigned long __user *f = (unsigned long __user *)from;
 
 		if (__get_user(*t, f) ||
-				__get_user(*(t + 1), f + 1) ||
-				__get_user(to->exponent, &from->exponent))
+		    __get_user(*(t + 1), f + 1) ||
+		    __get_user(to->exponent, &from->exponent))
 			return 1;
 	}
 	return 0;
@@ -291,42 +297,42 @@ static int convert_fxsr_from_user( struct i387_fxsave_struct *fxsave,
  * Signal frame handlers.
  */
 
-static inline int save_i387_fsave( struct _fpstate __user *buf )
+static inline int save_i387_fsave(struct _fpstate __user *buf)
 {
 	struct task_struct *tsk = current;
 
-	unlazy_fpu( tsk );
+	unlazy_fpu(tsk);
 	tsk->thread.i387.fsave.status = tsk->thread.i387.fsave.swd;
-	if ( __copy_to_user( buf, &tsk->thread.i387.fsave,
-			     sizeof(struct i387_fsave_struct) ) )
+	if (__copy_to_user(buf, &tsk->thread.i387.fsave,
+			   sizeof(struct i387_fsave_struct)))
 		return -1;
 	return 1;
 }
 
-static int save_i387_fxsave( struct _fpstate __user *buf )
+static int save_i387_fxsave(struct _fpstate __user *buf)
 {
 	struct task_struct *tsk = current;
 	int err = 0;
 
-	unlazy_fpu( tsk );
+	unlazy_fpu(tsk);
 
-	if ( convert_fxsr_to_user( buf, &tsk->thread.i387.fxsave ) )
+	if (convert_fxsr_to_user(buf, &tsk->thread.i387.fxsave))
 		return -1;
 
-	err |= __put_user( tsk->thread.i387.fxsave.swd, &buf->status );
-	err |= __put_user( X86_FXSR_MAGIC, &buf->magic );
-	if ( err )
+	err |= __put_user(tsk->thread.i387.fxsave.swd, &buf->status);
+	err |= __put_user(X86_FXSR_MAGIC, &buf->magic);
+	if (err)
 		return -1;
 
-	if ( __copy_to_user( &buf->_fxsr_env[0], &tsk->thread.i387.fxsave,
-			     sizeof(struct i387_fxsave_struct) ) )
+	if (__copy_to_user(&buf->_fxsr_env[0], &tsk->thread.i387.fxsave,
+			   sizeof(struct i387_fxsave_struct)))
 		return -1;
 	return 1;
 }
 
-int save_i387( struct _fpstate __user *buf )
+int save_i387(struct _fpstate __user *buf)
 {
-	if ( !used_math() )
+	if (!used_math())
 		return 0;
 
 	/* This will cause a "finit" to be triggered by the next
@@ -334,49 +340,49 @@ int save_i387( struct _fpstate __user *buf )
 	 */
 	clear_used_math();
 
-	if ( HAVE_HWFP ) {
-		if ( cpu_has_fxsr ) {
-			return save_i387_fxsave( buf );
+	if (HAVE_HWFP) {
+		if (cpu_has_fxsr) {
+			return save_i387_fxsave(buf);
 		} else {
-			return save_i387_fsave( buf );
+			return save_i387_fsave(buf);
 		}
 	} else {
-		return save_i387_soft( &current->thread.i387.soft, buf );
+		return save_i387_soft(&current->thread.i387.soft, buf);
 	}
 }
 
-static inline int restore_i387_fsave( struct _fpstate __user *buf )
+static inline int restore_i387_fsave(struct _fpstate __user *buf)
 {
 	struct task_struct *tsk = current;
-	clear_fpu( tsk );
-	return __copy_from_user( &tsk->thread.i387.fsave, buf,
-				 sizeof(struct i387_fsave_struct) );
+	clear_fpu(tsk);
+	return __copy_from_user(&tsk->thread.i387.fsave, buf,
+				sizeof(struct i387_fsave_struct));
 }
 
-static int restore_i387_fxsave( struct _fpstate __user *buf )
+static int restore_i387_fxsave(struct _fpstate __user *buf)
 {
 	int err;
 	struct task_struct *tsk = current;
-	clear_fpu( tsk );
-	err = __copy_from_user( &tsk->thread.i387.fxsave, &buf->_fxsr_env[0],
-				sizeof(struct i387_fxsave_struct) );
+	clear_fpu(tsk);
+	err = __copy_from_user(&tsk->thread.i387.fxsave, &buf->_fxsr_env[0],
+			       sizeof(struct i387_fxsave_struct));
 	/* mxcsr reserved bits must be masked to zero for security reasons */
 	tsk->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
-	return err ? 1 : convert_fxsr_from_user( &tsk->thread.i387.fxsave, buf );
+	return err ? 1 : convert_fxsr_from_user(&tsk->thread.i387.fxsave, buf);
 }
 
-int restore_i387( struct _fpstate __user *buf )
+int restore_i387(struct _fpstate __user *buf)
 {
 	int err;
 
-	if ( HAVE_HWFP ) {
-		if ( cpu_has_fxsr ) {
-			err = restore_i387_fxsave( buf );
+	if (HAVE_HWFP) {
+		if (cpu_has_fxsr) {
+			err = restore_i387_fxsave(buf);
 		} else {
-			err = restore_i387_fsave( buf );
+			err = restore_i387_fsave(buf);
 		}
 	} else {
-		err = restore_i387_soft( &current->thread.i387.soft, buf );
+		err = restore_i387_soft(&current->thread.i387.soft, buf);
 	}
 	set_used_math();
 	return err;
@@ -386,67 +392,67 @@ int restore_i387( struct _fpstate __user *buf )
  * ptrace request handlers.
  */
 
-static inline int get_fpregs_fsave( struct user_i387_struct __user *buf,
-				    struct task_struct *tsk )
+static inline int get_fpregs_fsave(struct user_i387_struct __user *buf,
+				   struct task_struct *tsk)
 {
-	return __copy_to_user( buf, &tsk->thread.i387.fsave,
-			       sizeof(struct user_i387_struct) );
+	return __copy_to_user(buf, &tsk->thread.i387.fsave,
+			      sizeof(struct user_i387_struct));
 }
 
-static inline int get_fpregs_fxsave( struct user_i387_struct __user *buf,
-				     struct task_struct *tsk )
+static inline int get_fpregs_fxsave(struct user_i387_struct __user *buf,
+				    struct task_struct *tsk)
 {
-	return convert_fxsr_to_user( (struct _fpstate __user *)buf,
-				     &tsk->thread.i387.fxsave );
+	return convert_fxsr_to_user((struct _fpstate __user *)buf,
+				    &tsk->thread.i387.fxsave);
 }
 
-int get_fpregs( struct user_i387_struct __user *buf, struct task_struct *tsk )
+int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *tsk)
 {
-	if ( HAVE_HWFP ) {
-		if ( cpu_has_fxsr ) {
-			return get_fpregs_fxsave( buf, tsk );
+	if (HAVE_HWFP) {
+		if (cpu_has_fxsr) {
+			return get_fpregs_fxsave(buf, tsk);
 		} else {
-			return get_fpregs_fsave( buf, tsk );
+			return get_fpregs_fsave(buf, tsk);
 		}
 	} else {
-		return save_i387_soft( &tsk->thread.i387.soft,
-				       (struct _fpstate __user *)buf );
+		return save_i387_soft(&tsk->thread.i387.soft,
+				      (struct _fpstate __user *)buf);
 	}
 }
 
-static inline int set_fpregs_fsave( struct task_struct *tsk,
-				    struct user_i387_struct __user *buf )
+static inline int set_fpregs_fsave(struct task_struct *tsk,
+				   struct user_i387_struct __user *buf)
 {
-	return __copy_from_user( &tsk->thread.i387.fsave, buf,
-				 sizeof(struct user_i387_struct) );
+	return __copy_from_user(&tsk->thread.i387.fsave, buf,
+				sizeof(struct user_i387_struct));
 }
 
-static inline int set_fpregs_fxsave( struct task_struct *tsk,
-				     struct user_i387_struct __user *buf )
+static inline int set_fpregs_fxsave(struct task_struct *tsk,
+				    struct user_i387_struct __user *buf)
 {
-	return convert_fxsr_from_user( &tsk->thread.i387.fxsave,
-				       (struct _fpstate __user *)buf );
+	return convert_fxsr_from_user(&tsk->thread.i387.fxsave,
+				      (struct _fpstate __user *)buf);
 }
 
-int set_fpregs( struct task_struct *tsk, struct user_i387_struct __user *buf )
+int set_fpregs(struct task_struct *tsk, struct user_i387_struct __user *buf)
 {
-	if ( HAVE_HWFP ) {
-		if ( cpu_has_fxsr ) {
-			return set_fpregs_fxsave( tsk, buf );
+	if (HAVE_HWFP) {
+		if (cpu_has_fxsr) {
+			return set_fpregs_fxsave(tsk, buf);
 		} else {
-			return set_fpregs_fsave( tsk, buf );
+			return set_fpregs_fsave(tsk, buf);
 		}
 	} else {
-		return restore_i387_soft( &tsk->thread.i387.soft,
-					  (struct _fpstate __user *)buf );
+		return restore_i387_soft(&tsk->thread.i387.soft,
+					 (struct _fpstate __user *)buf);
 	}
 }
 
-int get_fpxregs( struct user_fxsr_struct __user *buf, struct task_struct *tsk )
+int get_fpxregs(struct user_fxsr_struct __user *buf, struct task_struct *tsk)
 {
-	if ( cpu_has_fxsr ) {
-		if (__copy_to_user( buf, &tsk->thread.i387.fxsave,
-				    sizeof(struct user_fxsr_struct) ))
+	if (cpu_has_fxsr) {
+		if (__copy_to_user(buf, &tsk->thread.i387.fxsave,
+				   sizeof(struct user_fxsr_struct)))
 			return -EFAULT;
 		return 0;
 	} else {
@@ -454,15 +460,16 @@ int get_fpxregs( struct user_fxsr_struct __user *buf, struct task_struct *tsk )
 	}
 }
 
-int set_fpxregs( struct task_struct *tsk, struct user_fxsr_struct __user *buf )
+int set_fpxregs(struct task_struct *tsk, struct user_fxsr_struct __user *buf)
 {
 	int ret = 0;
 
-	if ( cpu_has_fxsr ) {
-		if (__copy_from_user( &tsk->thread.i387.fxsave, buf,
-				  sizeof(struct user_fxsr_struct) ))
+	if (cpu_has_fxsr) {
+		if (__copy_from_user(&tsk->thread.i387.fxsave, buf,
+				     sizeof(struct user_fxsr_struct)))
 			ret = -EFAULT;
-		/* mxcsr reserved bits must be masked to zero for security reasons */
+		/* mxcsr reserved bits must be masked to zero
+		 * for security reasons */
 		tsk->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
 	} else {
 		ret = -EIO;
@@ -474,41 +481,40 @@ int set_fpxregs( struct task_struct *tsk, struct user_fxsr_struct __user *buf )
  * FPU state for core dumps.
  */
 
-static inline void copy_fpu_fsave( struct task_struct *tsk,
-				   struct user_i387_struct *fpu )
+static inline void copy_fpu_fsave(struct task_struct *tsk,
+				  struct user_i387_struct *fpu)
 {
-	memcpy( fpu, &tsk->thread.i387.fsave,
-		sizeof(struct user_i387_struct) );
+	memcpy(fpu, &tsk->thread.i387.fsave,
+	       sizeof(struct user_i387_struct));
 }
 
-static inline void copy_fpu_fxsave( struct task_struct *tsk,
-				   struct user_i387_struct *fpu )
+static inline void copy_fpu_fxsave(struct task_struct *tsk,
+				   struct user_i387_struct *fpu)
 {
 	unsigned short *to;
 	unsigned short *from;
 	int i;
 
-	memcpy( fpu, &tsk->thread.i387.fxsave, 7 * sizeof(long) );
+	memcpy(fpu, &tsk->thread.i387.fxsave, 7 * sizeof(long));
 
 	to = (unsigned short *)&fpu->st_space[0];
 	from = (unsigned short *)&tsk->thread.i387.fxsave.st_space[0];
-	for ( i = 0 ; i < 8 ; i++, to += 5, from += 8 ) {
-		memcpy( to, from, 5 * sizeof(unsigned short) );
-	}
+	for (i = 0; i < 8; i++, to += 5, from += 8)
+		memcpy(to, from, 5 * sizeof(unsigned short));
 }
 
-int dump_fpu( struct pt_regs *regs, struct user_i387_struct *fpu )
+int dump_fpu(struct pt_regs *regs, struct user_i387_struct *fpu)
 {
 	int fpvalid;
 	struct task_struct *tsk = current;
 
 	fpvalid = !!used_math();
-	if ( fpvalid ) {
-		unlazy_fpu( tsk );
-		if ( cpu_has_fxsr ) {
-			copy_fpu_fxsave( tsk, fpu );
+	if (fpvalid) {
+		unlazy_fpu(tsk);
+		if (cpu_has_fxsr) {
+			copy_fpu_fxsave(tsk, fpu);
 		} else {
-			copy_fpu_fsave( tsk, fpu );
+			copy_fpu_fsave(tsk, fpu);
 		}
 	}
 
@@ -531,7 +537,8 @@ int dump_task_fpu(struct task_struct *tsk, struct user_i387_struct *fpu)
 	return fpvalid;
 }
 
-int dump_task_extended_fpu(struct task_struct *tsk, struct user_fxsr_struct *fpu)
+int dump_task_extended_fpu(struct task_struct *tsk,
+			   struct user_fxsr_struct *fpu)
 {
 	int fpvalid = tsk_used_math(tsk) && cpu_has_fxsr;
 
-- 
cgit v1.2.3-59-g8ed1b


From 7bcbc78dea92fdf0947fa48e248da3c993a5690f Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Wed, 30 Jan 2008 13:31:26 +0100
Subject: x86: clean up arch/x86/kernel/early-quirks.c

clean up checkpatch errors. No code changed.

      text    data     bss     dec     hex filename
       705     120       0     825     339 early-quirks.o.before
       705     120       0     825     339 early-quirks.o.after

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/early-quirks.c | 91 ++++++++++++++++++++++--------------------
 1 file changed, 47 insertions(+), 44 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index b55258e49208..3f88e437e843 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -32,10 +32,13 @@ static void __init fix_hypertransport_config(int num, int slot, int func)
 	 */
 	htcfg = read_pci_config(num, slot, func, 0x68);
 	if (htcfg & (1 << 18)) {
-		printk(KERN_INFO "Detected use of extended apic ids on hypertransport bus\n");
+		printk(KERN_INFO "Detected use of extended apic ids "
+				 "on hypertransport bus\n");
 		if ((htcfg & (1 << 17)) == 0) {
-			printk(KERN_INFO "Enabling hypertransport extended apic interrupt broadcast\n");
-			printk(KERN_INFO "Note this is a bios bug, please contact your hw vendor\n");
+			printk(KERN_INFO "Enabling hypertransport extended "
+					 "apic interrupt broadcast\n");
+			printk(KERN_INFO "Note this is a bios bug, "
+					 "please contact your hw vendor\n");
 			htcfg |= (1 << 17);
 			write_pci_config(num, slot, func, 0x68, htcfg);
 		}
@@ -130,6 +133,43 @@ static struct chipset early_qrk[] __initdata = {
 	{}
 };
 
+static void check_dev_quirk(int num, int slot, int func)
+{
+	u16 class;
+	u16 vendor;
+	u16 device;
+	u8 type;
+	int i;
+
+	class = read_pci_config_16(num, slot, func, PCI_CLASS_DEVICE);
+
+	if (class == 0xffff)
+		return;
+
+	vendor = read_pci_config_16(num, slot, func, PCI_VENDOR_ID);
+
+	device = read_pci_config_16(num, slot, func, PCI_DEVICE_ID);
+
+	for (i = 0; early_qrk[i].f != NULL; i++) {
+		if (((early_qrk[i].vendor == PCI_ANY_ID) ||
+			(early_qrk[i].vendor == vendor)) &&
+			((early_qrk[i].device == PCI_ANY_ID) ||
+			(early_qrk[i].device == device)) &&
+			(!((early_qrk[i].class ^ class) &
+			    early_qrk[i].class_mask))) {
+				if ((early_qrk[i].flags &
+				     QFLAG_DONE) != QFLAG_DONE)
+					early_qrk[i].f(num, slot, func);
+				early_qrk[i].flags |= QFLAG_APPLIED;
+			}
+	}
+
+	type = read_pci_config_byte(num, slot, func,
+				    PCI_HEADER_TYPE);
+	if (!(type & 0x80))
+		return;
+}
+
 void __init early_quirks(void)
 {
 	int num, slot, func;
@@ -138,45 +178,8 @@ void __init early_quirks(void)
 		return;
 
 	/* Poor man's PCI discovery */
-	for (num = 0; num < 32; num++) {
-		for (slot = 0; slot < 32; slot++) {
-			for (func = 0; func < 8; func++) {
-				u16 class;
-				u16 vendor;
-				u16 device;
-				u8 type;
-				int i;
-
-				class = read_pci_config_16(num,slot,func,
-							PCI_CLASS_REVISION);
-				if (class == 0xffff)
-					break;
-
-				vendor = read_pci_config_16(num, slot, func,
-							 PCI_VENDOR_ID);
-
-				device = read_pci_config_16(num, slot, func,
-							PCI_DEVICE_ID);
-
-				for(i=0;early_qrk[i].f != NULL;i++) {
-					if (((early_qrk[i].vendor == PCI_ANY_ID) ||
-					    (early_qrk[i].vendor == vendor)) &&
-					   ((early_qrk[i].device == PCI_ANY_ID) ||
-					    (early_qrk[i].device == device)) &&
-					   (!((early_qrk[i].class ^ class) &
-					     early_qrk[i].class_mask))) {
-						if ((early_qrk[i].flags & QFLAG_DONE) != QFLAG_DONE)
-							early_qrk[i].f(num, slot, func);
-						early_qrk[i].flags |= QFLAG_APPLIED;
-
-					}
-				}
-
-				type = read_pci_config_byte(num, slot, func,
-							    PCI_HEADER_TYPE);
-				if (!(type & 0x80))
-					break;
-			}
-		}
-	}
+	for (num = 0; num < 32; num++)
+		for (slot = 0; slot < 32; slot++)
+			for (func = 0; func < 8; func++)
+				check_dev_quirk(num, slot, func);
 }
-- 
cgit v1.2.3-59-g8ed1b


From 053de044411111da00272d1b4e174e7dd743f499 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:27 +0100
Subject: x86: get rid of _MASK flags

There's no need for the *_MASK flags (TF_MASK, IF_MASK, etc), found in
processor.h (both _32 and _64). They have a one-to-one mapping with the
EFLAGS value. This patch removes the definitions, and use the already
existent X86_EFLAGS_ version when applicable.

[ roland@redhat.com: KVM build fixes. ]

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ia32_signal.c    |  4 ++--
 arch/x86/kernel/kprobes.c      | 18 +++++++++---------
 arch/x86/kernel/signal_64.c    |  4 ++--
 arch/x86/kernel/traps_64.c     |  2 +-
 drivers/kvm/vmx.c              |  8 ++++----
 include/asm-x86/kprobes.h      |  2 +-
 include/asm-x86/processor.h    |  2 ++
 include/asm-x86/processor_32.h |  1 -
 include/asm-x86/processor_64.h | 11 -----------
 9 files changed, 21 insertions(+), 31 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index d03d43f32f4c..0e24e3fda3d7 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -501,7 +501,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
 	regs->ss = __USER32_DS;
 
 	set_fs(USER_DS);
-	regs->flags &= ~TF_MASK;
+	regs->flags &= ~X86_EFLAGS_TF;
 	if (test_thread_flag(TIF_SINGLESTEP))
 		ptrace_notify(SIGTRAP);
 
@@ -601,7 +601,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	regs->ss = __USER32_DS;
 
 	set_fs(USER_DS);
-	regs->flags &= ~TF_MASK;
+	regs->flags &= ~X86_EFLAGS_TF;
 	if (test_thread_flag(TIF_SINGLESTEP))
 		ptrace_notify(SIGTRAP);
 
diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 9aadd4d4a229..8de82c8cedd6 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -387,9 +387,9 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
 {
 	__get_cpu_var(current_kprobe) = p;
 	kcb->kprobe_saved_flags = kcb->kprobe_old_flags
-		= (regs->flags & (TF_MASK | IF_MASK));
+		= (regs->flags & (X86_EFLAGS_TF | X86_EFLAGS_IF));
 	if (is_IF_modifier(p->ainsn.insn))
-		kcb->kprobe_saved_flags &= ~IF_MASK;
+		kcb->kprobe_saved_flags &= ~X86_EFLAGS_IF;
 }
 
 static __always_inline void clear_btf(void)
@@ -407,8 +407,8 @@ static __always_inline void restore_btf(void)
 static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 {
 	clear_btf();
-	regs->flags |= TF_MASK;
-	regs->flags &= ~IF_MASK;
+	regs->flags |= X86_EFLAGS_TF;
+	regs->flags &= ~X86_EFLAGS_IF;
 	/*single step inline if the instruction is an int3*/
 	if (p->opcode == BREAKPOINT_INSTRUCTION)
 		regs->ip = (unsigned long)p->addr;
@@ -454,7 +454,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 		if (p) {
 			if (kcb->kprobe_status == KPROBE_HIT_SS &&
 				*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
-				regs->flags &= ~TF_MASK;
+				regs->flags &= ~X86_EFLAGS_TF;
 				regs->flags |= kcb->kprobe_saved_flags;
 				goto no_kprobe;
 #ifdef CONFIG_X86_64
@@ -749,10 +749,10 @@ static void __kprobes resume_execution(struct kprobe *p,
 		insn++;
 #endif
 
-	regs->flags &= ~TF_MASK;
+	regs->flags &= ~X86_EFLAGS_TF;
 	switch (*insn) {
 	case 0x9c:	/* pushfl */
-		*tos &= ~(TF_MASK | IF_MASK);
+		*tos &= ~(X86_EFLAGS_TF | X86_EFLAGS_IF);
 		*tos |= kcb->kprobe_old_flags;
 		break;
 	case 0xc2:	/* iret/ret/lret */
@@ -852,7 +852,7 @@ out:
 	 * will have TF set, in which case, continue the remaining processing
 	 * of do_debug, as if this is not a probe hit.
 	 */
-	if (regs->flags & TF_MASK)
+	if (regs->flags & X86_EFLAGS_TF)
 		return 0;
 
 	return 1;
@@ -982,7 +982,7 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	 */
 	memcpy(kcb->jprobes_stack, (kprobe_opcode_t *)addr,
 	       MIN_STACK_SIZE(addr));
-	regs->flags &= ~IF_MASK;
+	regs->flags &= ~X86_EFLAGS_IF;
 	trace_hardirqs_off();
 	regs->ip = (unsigned long)(jp->entry);
 	return 1;
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index 1c9bca56fb55..4eb751c60390 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -295,7 +295,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	   see include/asm-x86_64/uaccess.h for details. */
 	set_fs(USER_DS);
 
-	regs->flags &= ~TF_MASK;
+	regs->flags &= ~X86_EFLAGS_TF;
 	if (test_thread_flag(TIF_SINGLESTEP))
 		ptrace_notify(SIGTRAP);
 #ifdef DEBUG_SIG
@@ -463,7 +463,7 @@ do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
 	       
 	/* Pending single-step? */
 	if (thread_info_flags & _TIF_SINGLESTEP) {
-		regs->flags |= TF_MASK;
+		regs->flags |= X86_EFLAGS_TF;
 		clear_thread_flag(TIF_SINGLESTEP);
 	}
 
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index cf90ceb48f5f..7118fa0320ae 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -904,7 +904,7 @@ clear_dr7:
 
 clear_TF_reenable:
 	set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
-	regs->flags &= ~TF_MASK;
+	regs->flags &= ~X86_EFLAGS_TF;
 	preempt_conditional_cli(regs);
 }
 
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index bb56ae3f89b6..5b397b6c9f93 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -524,7 +524,7 @@ static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
 static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
 {
 	if (vcpu->rmode.active)
-		rflags |= IOPL_MASK | X86_EFLAGS_VM;
+		rflags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;
 	vmcs_writel(GUEST_RFLAGS, rflags);
 }
 
@@ -1050,7 +1050,7 @@ static void enter_pmode(struct kvm_vcpu *vcpu)
 	vmcs_write32(GUEST_TR_AR_BYTES, vcpu->rmode.tr.ar);
 
 	flags = vmcs_readl(GUEST_RFLAGS);
-	flags &= ~(IOPL_MASK | X86_EFLAGS_VM);
+	flags &= ~(X86_EFLAGS_IOPL | X86_EFLAGS_VM);
 	flags |= (vcpu->rmode.save_iopl << IOPL_SHIFT);
 	vmcs_writel(GUEST_RFLAGS, flags);
 
@@ -1107,9 +1107,9 @@ static void enter_rmode(struct kvm_vcpu *vcpu)
 	vmcs_write32(GUEST_TR_AR_BYTES, 0x008b);
 
 	flags = vmcs_readl(GUEST_RFLAGS);
-	vcpu->rmode.save_iopl = (flags & IOPL_MASK) >> IOPL_SHIFT;
+	vcpu->rmode.save_iopl = (flags & X86_EFLAGS_IOPL) >> IOPL_SHIFT;
 
-	flags |= IOPL_MASK | X86_EFLAGS_VM;
+	flags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;
 
 	vmcs_writel(GUEST_RFLAGS, flags);
 	vmcs_writel(GUEST_CR4, vmcs_readl(GUEST_CR4) | X86_CR4_VME);
diff --git a/include/asm-x86/kprobes.h b/include/asm-x86/kprobes.h
index 6e6371a856e7..143476a3cb52 100644
--- a/include/asm-x86/kprobes.h
+++ b/include/asm-x86/kprobes.h
@@ -88,7 +88,7 @@ struct kprobe_ctlblk {
  */
 static inline void restore_interrupts(struct pt_regs *regs)
 {
-	if (regs->flags & IF_MASK)
+	if (regs->flags & X86_EFLAGS_IF)
 		local_irq_enable();
 }
 
diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index dea81b70895d..e8dd394c9f46 100644
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -1,6 +1,8 @@
 #ifndef __ASM_X86_PROCESSOR_H
 #define __ASM_X86_PROCESSOR_H
 
+#include <asm/processor-flags.h>
+
 static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
 					 unsigned int *ecx, unsigned int *edx)
 {
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index 76cada930d22..b9dbe4668e75 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -19,7 +19,6 @@
 #include <asm/percpu.h>
 #include <linux/cpumask.h>
 #include <linux/init.h>
-#include <asm/processor-flags.h>
 #include <asm/desc_defs.h>
 
 static inline int desc_empty(const void *ptr)
diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h
index a0a9e5515097..c49716a76644 100644
--- a/include/asm-x86/processor_64.h
+++ b/include/asm-x86/processor_64.h
@@ -18,19 +18,8 @@
 #include <asm/percpu.h>
 #include <linux/personality.h>
 #include <linux/cpumask.h>
-#include <asm/processor-flags.h>
 #include <asm/desc_defs.h>
 
-#define TF_MASK		0x00000100
-#define IF_MASK		0x00000200
-#define IOPL_MASK	0x00003000
-#define NT_MASK		0x00004000
-#define VM_MASK		0x00020000
-#define AC_MASK		0x00040000
-#define VIF_MASK	0x00080000	/* virtual interrupt flag */
-#define VIP_MASK	0x00100000	/* virtual interrupt pending */
-#define ID_MASK		0x00200000
-
 static inline int desc_empty(const void *ptr)
 {
 	const u32 *desc = ptr;
-- 
cgit v1.2.3-59-g8ed1b


From ca241c75037b32e0216a68e39ad2801d04fa1f87 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:31 +0100
Subject: x86: unify tss_struct

Although slighly different, the tss_struct is very similar in x86_64 and
i386. The really different part, which matchs the hardware vision of it, is
now called x86_hw_tss, and each of the architectures provides yours.
It's then used as a field in the outter tss_struct.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/asm-offsets_64.c |  2 +-
 arch/x86/kernel/doublefault_32.c |  2 +-
 arch/x86/kernel/process_64.c     |  2 +-
 arch/x86/kernel/setup64.c        |  4 +--
 arch/x86/kernel/smpboot_64.c     |  2 +-
 include/asm-x86/lguest.h         |  2 +-
 include/asm-x86/processor.h      | 77 ++++++++++++++++++++++++++++++++++++++++
 include/asm-x86/processor_32.h   | 62 --------------------------------
 include/asm-x86/processor_64.h   | 35 +-----------------
 9 files changed, 85 insertions(+), 103 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index a05428764314..2b32719a3fea 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -110,7 +110,7 @@ int main(void)
 	ENTRY(cr8);
 	BLANK();
 #undef ENTRY
-	DEFINE(TSS_ist, offsetof(struct tss_struct, ist));
+	DEFINE(TSS_ist, offsetof(struct tss_struct, x86_tss.ist));
 	BLANK();
 	DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
 	BLANK();
diff --git a/arch/x86/kernel/doublefault_32.c b/arch/x86/kernel/doublefault_32.c
index d16122a8e4eb..a47798b59f07 100644
--- a/arch/x86/kernel/doublefault_32.c
+++ b/arch/x86/kernel/doublefault_32.c
@@ -33,7 +33,7 @@ static void doublefault_fn(void)
 		printk(KERN_EMERG "double fault, tss at %08lx\n", tss);
 
 		if (ptr_ok(tss)) {
-			struct i386_hw_tss *t = (struct i386_hw_tss *)tss;
+			struct x86_hw_tss *t = (struct x86_hw_tss *)tss;
 
 			printk(KERN_EMERG "eip = %08lx, esp = %08lx\n",
 			       t->ip, t->sp);
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 836a71adfa11..af56104b73ff 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -639,7 +639,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	/*
 	 * Reload esp0, LDT and the page table pointer:
 	 */
-	tss->sp0 = next->sp0;
+	tss->x86_tss.sp0 = next->sp0;
 
 	/* 
 	 * Switch DS and ES.
diff --git a/arch/x86/kernel/setup64.c b/arch/x86/kernel/setup64.c
index 05cafcb94109..3b0ffa31f3c0 100644
--- a/arch/x86/kernel/setup64.c
+++ b/arch/x86/kernel/setup64.c
@@ -258,10 +258,10 @@ void __cpuinit cpu_init (void)
 				      v, cpu); 
 		}
 		estacks += PAGE_SIZE << order[v];
-		orig_ist->ist[v] = t->ist[v] = (unsigned long)estacks;
+		orig_ist->ist[v] = t->x86_tss.ist[v] = (unsigned long)estacks;
 	}
 
-	t->io_bitmap_base = offsetof(struct tss_struct, io_bitmap);
+	t->x86_tss.io_bitmap_base = offsetof(struct tss_struct, io_bitmap);
 	/*
 	 * <= is required because the CPU will access up to
 	 * 8 bits beyond the end of the IO permission bitmap.
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index 4c03ddccd681..2ea02a71b644 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -614,7 +614,7 @@ do_rest:
 	start_rip = setup_trampoline();
 
 	init_rsp = c_idle.idle->thread.sp;
-	per_cpu(init_tss,cpu).sp0 = init_rsp;
+	per_cpu(init_tss, cpu).x86_tss.sp0 = init_rsp;
 	initial_code = start_secondary;
 	clear_tsk_thread_flag(c_idle.idle, TIF_FORK);
 
diff --git a/include/asm-x86/lguest.h b/include/asm-x86/lguest.h
index 3585a1628b59..1c8367a692f6 100644
--- a/include/asm-x86/lguest.h
+++ b/include/asm-x86/lguest.h
@@ -51,7 +51,7 @@ struct lguest_ro_state
 	/* Fields which are used when guest is running. */
 	struct desc_ptr guest_idt_desc;
 	struct desc_ptr guest_gdt_desc;
-	struct i386_hw_tss guest_tss;
+	struct x86_hw_tss guest_tss;
 	struct desc_struct guest_idt[IDT_ENTRIES];
 	struct desc_struct guest_gdt[GDT_ENTRIES];
 };
diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index 3deb5ba55f55..cede9ad3dc6e 100644
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -8,6 +8,7 @@ struct task_struct;
 struct mm_struct;
 
 #include <asm/page.h>
+#include <asm/percpu.h>
 #include <asm/system.h>
 
 /*
@@ -38,6 +39,82 @@ static inline void load_cr3(pgd_t *pgdir)
 	write_cr3(__pa(pgdir));
 }
 
+#ifdef CONFIG_X86_32
+/* This is the TSS defined by the hardware. */
+struct x86_hw_tss {
+	unsigned short	back_link, __blh;
+	unsigned long	sp0;
+	unsigned short	ss0, __ss0h;
+	unsigned long	sp1;
+	unsigned short	ss1, __ss1h;	/* ss1 caches MSR_IA32_SYSENTER_CS */
+	unsigned long	sp2;
+	unsigned short	ss2, __ss2h;
+	unsigned long	__cr3;
+	unsigned long	ip;
+	unsigned long	flags;
+	unsigned long	ax, cx, dx, bx;
+	unsigned long	sp, bp, si, di;
+	unsigned short	es, __esh;
+	unsigned short	cs, __csh;
+	unsigned short	ss, __ssh;
+	unsigned short	ds, __dsh;
+	unsigned short	fs, __fsh;
+	unsigned short	gs, __gsh;
+	unsigned short	ldt, __ldth;
+	unsigned short	trace, io_bitmap_base;
+} __attribute__((packed));
+#else
+struct x86_hw_tss {
+	u32 reserved1;
+	u64 sp0;
+	u64 sp1;
+	u64 sp2;
+	u64 reserved2;
+	u64 ist[7];
+	u32 reserved3;
+	u32 reserved4;
+	u16 reserved5;
+	u16 io_bitmap_base;
+} __attribute__((packed)) ____cacheline_aligned;
+#endif
+
+/*
+ * Size of io_bitmap.
+ */
+#define IO_BITMAP_BITS  65536
+#define IO_BITMAP_BYTES (IO_BITMAP_BITS/8)
+#define IO_BITMAP_LONGS (IO_BITMAP_BYTES/sizeof(long))
+#define IO_BITMAP_OFFSET offsetof(struct tss_struct, io_bitmap)
+#define INVALID_IO_BITMAP_OFFSET 0x8000
+#define INVALID_IO_BITMAP_OFFSET_LAZY 0x9000
+
+struct tss_struct {
+	struct x86_hw_tss x86_tss;
+
+	/*
+	 * The extra 1 is there because the CPU will access an
+	 * additional byte beyond the end of the IO permission
+	 * bitmap. The extra byte must be all 1 bits, and must
+	 * be within the limit.
+	 */
+	unsigned long	io_bitmap[IO_BITMAP_LONGS + 1];
+	/*
+	 * Cache the current maximum and the last task that used the bitmap:
+	 */
+	unsigned long io_bitmap_max;
+	struct thread_struct *io_bitmap_owner;
+	/*
+	 * pads the TSS to be cacheline-aligned (size is 0x100)
+	 */
+	unsigned long __cacheline_filler[35];
+	/*
+	 * .. and then another 0x100 bytes for emergency kernel stack
+	 */
+	unsigned long stack[64];
+} __attribute__((packed));
+
+DECLARE_PER_CPU(struct tss_struct, init_tss);
+
 #ifdef CONFIG_X86_32
 # include "processor_32.h"
 #else
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index 6cd2149dcbad..57b345bc3c74 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -81,7 +81,6 @@ struct cpuinfo_x86 {
 extern struct cpuinfo_x86 boot_cpu_data;
 extern struct cpuinfo_x86 new_cpu_data;
 extern struct tss_struct doublefault_tss;
-DECLARE_PER_CPU(struct tss_struct, init_tss);
 
 #ifdef CONFIG_SMP
 DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
@@ -123,16 +122,6 @@ extern unsigned int mca_pentium_flag;
 #define TASK_SIZE	(PAGE_OFFSET)
 
 
-/*
- * Size of io_bitmap.
- */
-#define IO_BITMAP_BITS  65536
-#define IO_BITMAP_BYTES (IO_BITMAP_BITS/8)
-#define IO_BITMAP_LONGS (IO_BITMAP_BYTES/sizeof(long))
-#define IO_BITMAP_OFFSET offsetof(struct tss_struct,io_bitmap)
-#define INVALID_IO_BITMAP_OFFSET 0x8000
-#define INVALID_IO_BITMAP_OFFSET_LAZY 0x9000
-
 struct i387_fsave_struct {
 	long	cwd;
 	long	swd;
@@ -185,57 +174,6 @@ typedef struct {
 	unsigned long seg;
 } mm_segment_t;
 
-struct thread_struct;
-
-/* This is the TSS defined by the hardware. */
-struct i386_hw_tss {
-	unsigned short	back_link,__blh;
-	unsigned long	sp0;
-	unsigned short	ss0,__ss0h;
-	unsigned long	sp1;
-	unsigned short	ss1,__ss1h;	/* ss1 is used to cache MSR_IA32_SYSENTER_CS */
-	unsigned long	sp2;
-	unsigned short	ss2,__ss2h;
-	unsigned long	__cr3;
-	unsigned long	ip;
-	unsigned long	flags;
-	unsigned long	ax, cx, dx, bx;
-	unsigned long	sp, bp, si, di;
-	unsigned short	es, __esh;
-	unsigned short	cs, __csh;
-	unsigned short	ss, __ssh;
-	unsigned short	ds, __dsh;
-	unsigned short	fs, __fsh;
-	unsigned short	gs, __gsh;
-	unsigned short	ldt, __ldth;
-	unsigned short	trace, io_bitmap_base;
-} __attribute__((packed));
-
-struct tss_struct {
-	struct i386_hw_tss x86_tss;
-
-	/*
-	 * The extra 1 is there because the CPU will access an
-	 * additional byte beyond the end of the IO permission
-	 * bitmap. The extra byte must be all 1 bits, and must
-	 * be within the limit.
-	 */
-	unsigned long	io_bitmap[IO_BITMAP_LONGS + 1];
-	/*
-	 * Cache the current maximum and the last task that used the bitmap:
-	 */
-	unsigned long io_bitmap_max;
-	struct thread_struct *io_bitmap_owner;
-	/*
-	 * pads the TSS to be cacheline-aligned (size is 0x100)
-	 */
-	unsigned long __cacheline_filler[35];
-	/*
-	 * .. and then another 0x100 bytes for emergency kernel stack
-	 */
-	unsigned long stack[64];
-} __attribute__((packed));
-
 #define ARCH_MIN_TASKALIGN	16
 
 struct thread_struct {
diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h
index 1984a4a38b74..8d342c23ad14 100644
--- a/include/asm-x86/processor_64.h
+++ b/include/asm-x86/processor_64.h
@@ -91,14 +91,6 @@ extern void identify_cpu(struct cpuinfo_x86 *);
 #define TASK_SIZE 		(test_thread_flag(TIF_IA32) ? IA32_PAGE_OFFSET : TASK_SIZE64)
 #define TASK_SIZE_OF(child) 	((test_tsk_thread_flag(child, TIF_IA32)) ? IA32_PAGE_OFFSET : TASK_SIZE64)
 
-/*
- * Size of io_bitmap.
- */
-#define IO_BITMAP_BITS  65536
-#define IO_BITMAP_BYTES (IO_BITMAP_BITS/8)
-#define IO_BITMAP_LONGS (IO_BITMAP_BYTES/sizeof(long))
-#define IO_BITMAP_OFFSET offsetof(struct tss_struct,io_bitmap)
-#define INVALID_IO_BITMAP_OFFSET 0x8000
 
 struct i387_fxsave_struct {
 	u16	cwd;
@@ -118,32 +110,7 @@ union i387_union {
 	struct i387_fxsave_struct	fxsave;
 };
 
-struct tss_struct {
-	u32 reserved1;
-	u64 sp0;
-	u64 sp1;
-	u64 sp2;
-	u64 reserved2;
-	u64 ist[7];
-	u32 reserved3;
-	u32 reserved4;
-	u16 reserved5;
-	u16 io_bitmap_base;
-	/*
-	 * The extra 1 is there because the CPU will access an
-	 * additional byte beyond the end of the IO permission
-	 * bitmap. The extra byte must be all 1 bits, and must
-	 * be within the limit. Thus we have:
-	 *
-	 * 128 bytes, the bitmap itself, for ports 0..0x3ff
-	 * 8 bytes, for an extra "long" of ~0UL
-	 */
-	unsigned long io_bitmap[IO_BITMAP_LONGS + 1];
-} __attribute__((packed)) ____cacheline_aligned;
-
-
 extern struct cpuinfo_x86 boot_cpu_data;
-DECLARE_PER_CPU(struct tss_struct,init_tss);
 /* Save the original ist values for checking stack pointers during debugging */
 struct orig_ist {
 	unsigned long ist[7];
@@ -195,7 +162,7 @@ struct thread_struct {
 }
 
 #define INIT_TSS  { \
-	.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
+	.x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
 }
 
 #define INIT_MMAP \
-- 
cgit v1.2.3-59-g8ed1b


From 7818a1e0294debee02d5135e17b89f28b8871887 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:31 +0100
Subject: x86: provide 64-bit with a load_sp0 function.

Paravirt guests need to inform the underlying hypervisor whenever the sp0
tss field changes. i386 already has such a function, and we use it for
x86_64 too. There's an unnecessary (for 64-bit) msr handling part in the original
version, and it is placed around an ifdef. Making no more sense in
processor_32.h, it is moved to the common header

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_64.c   |  2 +-
 arch/x86/kernel/smpboot_64.c   |  2 +-
 include/asm-x86/processor.h    | 22 +++++++++++++++++++++-
 include/asm-x86/processor_32.h | 20 --------------------
 4 files changed, 23 insertions(+), 23 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index af56104b73ff..e3a3610ade10 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -639,7 +639,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	/*
 	 * Reload esp0, LDT and the page table pointer:
 	 */
-	tss->x86_tss.sp0 = next->sp0;
+	load_sp0(tss, next);
 
 	/* 
 	 * Switch DS and ES.
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index 2ea02a71b644..5bd42ce144da 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -614,7 +614,7 @@ do_rest:
 	start_rip = setup_trampoline();
 
 	init_rsp = c_idle.idle->thread.sp;
-	per_cpu(init_tss, cpu).x86_tss.sp0 = init_rsp;
+	load_sp0(&per_cpu(init_tss, cpu), &c_idle.idle->thread);
 	initial_code = start_secondary;
 	clear_tsk_thread_flag(c_idle.idle, TIF_FORK);
 
diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index cede9ad3dc6e..b1ea52156362 100644
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -193,8 +193,22 @@ static inline void native_set_iopl_mask(unsigned mask)
 #endif
 }
 
+static inline void native_load_sp0(struct tss_struct *tss,
+				   struct thread_struct *thread)
+{
+	tss->x86_tss.sp0 = thread->sp0;
+#ifdef CONFIG_X86_32
+	/* Only happens when SEP is enabled, no need to test "SEP"arately */
+	if (unlikely(tss->x86_tss.ss1 != thread->sysenter_cs)) {
+		tss->x86_tss.ss1 = thread->sysenter_cs;
+		wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0);
+	}
+#endif
+}
 
-#ifndef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
 #define __cpuid native_cpuid
 #define paravirt_enabled() 0
 
@@ -206,6 +220,12 @@ static inline void native_set_iopl_mask(unsigned mask)
 #define set_debugreg(value, register)				\
 	native_set_debugreg(register, value)
 
+static inline void load_sp0(struct tss_struct *tss,
+			    struct thread_struct *thread)
+{
+	native_load_sp0(tss, thread);
+}
+
 #define set_iopl_mask native_set_iopl_mask
 #endif /* CONFIG_PARAVIRT */
 
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index 57b345bc3c74..53037d1a6ae6 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -278,26 +278,6 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
 
 #define KSTK_ESP(task) (task_pt_regs(task)->sp)
 
-static inline void native_load_sp0(struct tss_struct *tss, struct thread_struct *thread)
-{
-	tss->x86_tss.sp0 = thread->sp0;
-	/* This can only happen when SEP is enabled, no need to test "SEP"arately */
-	if (unlikely(tss->x86_tss.ss1 != thread->sysenter_cs)) {
-		tss->x86_tss.ss1 = thread->sysenter_cs;
-		wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0);
-	}
-}
-
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else
-
-static inline void load_sp0(struct tss_struct *tss, struct thread_struct *thread)
-{
-	native_load_sp0(tss, thread);
-}
-#endif /* CONFIG_PARAVIRT */
-
 /* generic versions from gas */
 #define GENERIC_NOP1	".byte 0x90\n"
 #define GENERIC_NOP2    	".byte 0x89,0xf6\n"
-- 
cgit v1.2.3-59-g8ed1b


From 5300db887e251276eaab2801af297acf4b53b9eb Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:33 +0100
Subject: x86: unify x86_cpuinfo struct.

x86_cpuinfo is one more to the family of "not fundamentally different"
structs. It's unified in processor.h, with very specific fields enclosed
around ifdefs.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/common.c   |  6 ++--
 include/asm-x86/processor.h    | 82 ++++++++++++++++++++++++++++++++++++++++++
 include/asm-x86/processor_32.h | 67 ----------------------------------
 include/asm-x86/processor_64.h | 57 -----------------------------
 4 files changed, 85 insertions(+), 127 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 69507ae8a65b..ecd13c0e8542 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -427,7 +427,7 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 
 	printk(KERN_DEBUG "CPU: After generic identify, caps:");
 	for (i = 0; i < NCAPINTS; i++)
-		printk(" %08lx", c->x86_capability[i]);
+		printk(" %08x", c->x86_capability[i]);
 	printk("\n");
 
 	if (this_cpu->c_identify) {
@@ -435,7 +435,7 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 
 		printk(KERN_DEBUG "CPU: After vendor identify, caps:");
 		for (i = 0; i < NCAPINTS; i++)
-			printk(" %08lx", c->x86_capability[i]);
+			printk(" %08x", c->x86_capability[i]);
 		printk("\n");
 	}
 
@@ -493,7 +493,7 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 
 	printk(KERN_DEBUG "CPU: After all inits, caps:");
 	for (i = 0; i < NCAPINTS; i++)
-		printk(" %08lx", c->x86_capability[i]);
+		printk(" %08x", c->x86_capability[i]);
 	printk("\n");
 
 	/*
diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index 8b56c23f043d..2b896b0aa3fa 100644
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -10,6 +10,9 @@ struct mm_struct;
 #include <asm/page.h>
 #include <asm/percpu.h>
 #include <asm/system.h>
+#include <asm/percpu.h>
+#include <linux/cpumask.h>
+#include <linux/cache.h>
 
 /*
  * Default implementation of macro that returns current
@@ -30,6 +33,85 @@ static inline void *current_text_addr(void)
 #define ARCH_MIN_MMSTRUCT_ALIGN	0
 #endif
 
+/*
+ *  CPU type and hardware bug flags. Kept separately for each CPU.
+ *  Members of this structure are referenced in head.S, so think twice
+ *  before touching them. [mj]
+ */
+
+struct cpuinfo_x86 {
+	__u8	x86;		/* CPU family */
+	__u8	x86_vendor;	/* CPU vendor */
+	__u8	x86_model;
+	__u8	x86_mask;
+#ifdef CONFIG_X86_32
+	char	wp_works_ok;	/* It doesn't on 386's */
+	char	hlt_works_ok;	/* Problems on some 486Dx4's and old 386's */
+	char	hard_math;
+	char	rfu;
+	char	fdiv_bug;
+	char	f00f_bug;
+	char	coma_bug;
+	char	pad0;
+#else
+	/* number of 4K pages in DTLB/ITLB combined(in pages)*/
+	int     x86_tlbsize;
+	__u8    x86_virt_bits, x86_phys_bits;
+	/* cpuid returned core id bits */
+	__u8    x86_coreid_bits;
+	/* Max extended CPUID function supported */
+	__u32   extended_cpuid_level;
+#endif
+	int	cpuid_level;	/* Maximum supported CPUID level, -1=no CPUID */
+	__u32	x86_capability[NCAPINTS];
+	char	x86_vendor_id[16];
+	char	x86_model_id[64];
+	int 	x86_cache_size;  /* in KB - valid for CPUS which support this
+				    call  */
+	int 	x86_cache_alignment;	/* In bytes */
+	int	x86_power;
+	unsigned long loops_per_jiffy;
+#ifdef CONFIG_SMP
+	cpumask_t llc_shared_map;	/* cpus sharing the last level cache */
+#endif
+	unsigned char x86_max_cores;	/* cpuid returned max cores value */
+	unsigned char apicid;
+	unsigned short x86_clflush_size;
+#ifdef CONFIG_SMP
+	unsigned char booted_cores;	/* number of cores as seen by OS */
+	__u8 phys_proc_id; 		/* Physical processor id. */
+	__u8 cpu_core_id;  		/* Core id */
+	__u8 cpu_index;			/* index into per_cpu list */
+#endif
+} __attribute__((__aligned__(SMP_CACHE_BYTES)));
+
+#define X86_VENDOR_INTEL 0
+#define X86_VENDOR_CYRIX 1
+#define X86_VENDOR_AMD 2
+#define X86_VENDOR_UMC 3
+#define X86_VENDOR_NEXGEN 4
+#define X86_VENDOR_CENTAUR 5
+#define X86_VENDOR_TRANSMETA 7
+#define X86_VENDOR_NSC 8
+#define X86_VENDOR_NUM 9
+#define X86_VENDOR_UNKNOWN 0xff
+
+extern struct cpuinfo_x86 boot_cpu_data;
+
+#ifdef CONFIG_SMP
+DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
+#define cpu_data(cpu)		per_cpu(cpu_info, cpu)
+#define current_cpu_data	cpu_data(smp_processor_id())
+#else
+#define cpu_data(cpu)		boot_cpu_data
+#define current_cpu_data	boot_cpu_data
+#endif
+
+extern void print_cpu_info(struct cpuinfo_x86 *);
+extern void init_scattered_cpuid_features(struct cpuinfo_x86 *c);
+extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c);
+extern unsigned short num_cache_leaves;
+
 static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
 					 unsigned int *ecx, unsigned int *edx)
 {
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index 8380243a19d3..f0f7ca48444e 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -14,83 +14,16 @@
 #include <asm/cpufeature.h>
 #include <asm/msr.h>
 #include <asm/system.h>
-#include <linux/cache.h>
 #include <linux/threads.h>
-#include <asm/percpu.h>
-#include <linux/cpumask.h>
 #include <linux/init.h>
 #include <asm/desc_defs.h>
 
-/*
- *  CPU type and hardware bug flags. Kept separately for each CPU.
- *  Members of this structure are referenced in head.S, so think twice
- *  before touching them. [mj]
- */
-
-struct cpuinfo_x86 {
-	__u8	x86;		/* CPU family */
-	__u8	x86_vendor;	/* CPU vendor */
-	__u8	x86_model;
-	__u8	x86_mask;
-	char	wp_works_ok;	/* It doesn't on 386's */
-	char	hlt_works_ok;	/* Problems on some 486Dx4's and old 386's */
-	char	hard_math;
-	char	rfu;
-       	int	cpuid_level;	/* Maximum supported CPUID level, -1=no CPUID */
-	unsigned long	x86_capability[NCAPINTS];
-	char	x86_vendor_id[16];
-	char	x86_model_id[64];
-	int 	x86_cache_size;  /* in KB - valid for CPUS which support this
-				    call  */
-	int 	x86_cache_alignment;	/* In bytes */
-	char	fdiv_bug;
-	char	f00f_bug;
-	char	coma_bug;
-	char	pad0;
-	int	x86_power;
-	unsigned long loops_per_jiffy;
-#ifdef CONFIG_SMP
-	cpumask_t llc_shared_map;	/* cpus sharing the last level cache */
-#endif
-	unsigned char x86_max_cores;	/* cpuid returned max cores value */
-	unsigned char apicid;
-	unsigned short x86_clflush_size;
-#ifdef CONFIG_SMP
-	unsigned char booted_cores;	/* number of cores as seen by OS */
-	__u8 phys_proc_id; 		/* Physical processor id. */
-	__u8 cpu_core_id;  		/* Core id */
-	__u8 cpu_index;			/* index into per_cpu list */
-#endif
-} __attribute__((__aligned__(SMP_CACHE_BYTES)));
-
-#define X86_VENDOR_INTEL 0
-#define X86_VENDOR_CYRIX 1
-#define X86_VENDOR_AMD 2
-#define X86_VENDOR_UMC 3
-#define X86_VENDOR_NEXGEN 4
-#define X86_VENDOR_CENTAUR 5
-#define X86_VENDOR_TRANSMETA 7
-#define X86_VENDOR_NSC 8
-#define X86_VENDOR_NUM 9
-#define X86_VENDOR_UNKNOWN 0xff
-
 /*
  * capabilities of CPUs
  */
-
-extern struct cpuinfo_x86 boot_cpu_data;
 extern struct cpuinfo_x86 new_cpu_data;
 extern struct tss_struct doublefault_tss;
 
-#ifdef CONFIG_SMP
-DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
-#define cpu_data(cpu)		per_cpu(cpu_info, cpu)
-#define current_cpu_data	cpu_data(smp_processor_id())
-#else
-#define cpu_data(cpu)		boot_cpu_data
-#define current_cpu_data	boot_cpu_data
-#endif
-
 /*
  * the following now lives in the per cpu area:
  * extern	int cpu_llc_id[NR_CPUS];
diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h
index 7fe5c1461c83..5045abe91e37 100644
--- a/include/asm-x86/processor_64.h
+++ b/include/asm-x86/processor_64.h
@@ -15,65 +15,9 @@
 #include <asm/current.h>
 #include <asm/system.h>
 #include <asm/mmsegment.h>
-#include <asm/percpu.h>
 #include <linux/personality.h>
-#include <linux/cpumask.h>
 #include <asm/desc_defs.h>
 
-/*
- *  CPU type and hardware bug flags. Kept separately for each CPU.
- */
-
-struct cpuinfo_x86 {
-	__u8	x86;		/* CPU family */
-	__u8	x86_vendor;	/* CPU vendor */
-	__u8	x86_model;
-	__u8	x86_mask;
-	int	cpuid_level;	/* Maximum supported CPUID level, -1=no CPUID */
-	__u32	x86_capability[NCAPINTS];
-	char	x86_vendor_id[16];
-	char	x86_model_id[64];
-	int 	x86_cache_size;  /* in KB */
-	int	x86_clflush_size;
-	int	x86_cache_alignment;
-	int	x86_tlbsize;	/* number of 4K pages in DTLB/ITLB combined(in pages)*/
-        __u8    x86_virt_bits, x86_phys_bits;
-	__u8	x86_max_cores;	/* cpuid returned max cores value */
-	__u8	x86_coreid_bits; /* cpuid returned core id bits */
-        __u32   x86_power; 	
-	__u32   extended_cpuid_level;	/* Max extended CPUID function supported */
-	unsigned long loops_per_jiffy;
-#ifdef CONFIG_SMP
-	cpumask_t llc_shared_map;	/* cpus sharing the last level cache */
-#endif
-	__u8	apicid;
-#ifdef CONFIG_SMP
-	__u8	booted_cores;	/* number of cores as seen by OS */
-	__u8	phys_proc_id;	/* Physical Processor id. */
-	__u8	cpu_core_id;	/* Core id. */
-	__u8	cpu_index;	/* index into per_cpu list */
-#endif
-} ____cacheline_aligned;
-
-#define X86_VENDOR_INTEL 0
-#define X86_VENDOR_CYRIX 1
-#define X86_VENDOR_AMD 2
-#define X86_VENDOR_UMC 3
-#define X86_VENDOR_NEXGEN 4
-#define X86_VENDOR_CENTAUR 5
-#define X86_VENDOR_TRANSMETA 7
-#define X86_VENDOR_NUM 8
-#define X86_VENDOR_UNKNOWN 0xff
-
-#ifdef CONFIG_SMP
-DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
-#define cpu_data(cpu)		per_cpu(cpu_info, cpu)
-#define current_cpu_data	cpu_data(smp_processor_id())
-#else
-#define cpu_data(cpu)		boot_cpu_data
-#define current_cpu_data	boot_cpu_data
-#endif
-
 extern char ignore_irq13;
 
 extern void identify_cpu(struct cpuinfo_x86 *);
@@ -110,7 +54,6 @@ union i387_union {
 	struct i387_fxsave_struct	fxsave;
 };
 
-extern struct cpuinfo_x86 boot_cpu_data;
 /* Save the original ist values for checking stack pointers during debugging */
 struct orig_ist {
 	unsigned long ist[7];
-- 
cgit v1.2.3-59-g8ed1b


From 1a53905adddf6cc6d795bd7e988c60a19773f72e Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:31:39 +0100
Subject: x86: move definitions to processor.h

This patch moves definitions that are present in only one of the files
(between processor_32.h and processor_64.h), to processor.h. They're mostly
structures and function definitions.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/common.c   |  2 +-
 arch/x86/kernel/setup_64.c     |  2 +-
 include/asm-x86/processor.h    | 41 +++++++++++++++++++++++++++++++++++++++++
 include/asm-x86/processor_32.h | 35 -----------------------------------
 include/asm-x86/processor_64.h |  6 ------
 5 files changed, 43 insertions(+), 43 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index ecd13c0e8542..e48832a6c2a9 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -399,7 +399,7 @@ __setup("serialnumber", x86_serial_nr_setup);
 /*
  * This does the hard work of actually picking apart the CPU stuff...
  */
-static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
+void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 {
 	int i;
 
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 90b8bb4748b9..02409100f456 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -757,7 +757,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 		disable_apic_timer = 1;
 }
 
-static void __cpuinit detect_ht(struct cpuinfo_x86 *c)
+void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
 	u32 eax, ebx, ecx, edx;
diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index 87466b6d3b92..c6b749a018a7 100644
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -96,7 +96,12 @@ struct cpuinfo_x86 {
 #define X86_VENDOR_NUM 9
 #define X86_VENDOR_UNKNOWN 0xff
 
+/*
+ * capabilities of CPUs
+ */
 extern struct cpuinfo_x86 boot_cpu_data;
+extern struct cpuinfo_x86 new_cpu_data;
+extern struct tss_struct doublefault_tss;
 
 #ifdef CONFIG_SMP
 DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
@@ -107,11 +112,22 @@ DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
 #define current_cpu_data	boot_cpu_data
 #endif
 
+void cpu_detect(struct cpuinfo_x86 *c);
+
+extern void identify_cpu(struct cpuinfo_x86 *);
+extern void identify_boot_cpu(void);
+extern void identify_secondary_cpu(struct cpuinfo_x86 *);
 extern void print_cpu_info(struct cpuinfo_x86 *);
 extern void init_scattered_cpuid_features(struct cpuinfo_x86 *c);
 extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c);
 extern unsigned short num_cache_leaves;
 
+#if defined(CONFIG_X86_HT) || defined(CONFIG_X86_64)
+extern void detect_ht(struct cpuinfo_x86 *c);
+#else
+static inline void detect_ht(struct cpuinfo_x86 *c) {}
+#endif
+
 static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
 					 unsigned int *ecx, unsigned int *edx)
 {
@@ -205,6 +221,11 @@ struct tss_struct {
 
 DECLARE_PER_CPU(struct tss_struct, init_tss);
 
+/* Save the original ist values for checking stack pointers during debugging */
+struct orig_ist {
+	unsigned long ist[7];
+};
+
 #ifdef CONFIG_X86_32
 # include "processor_32.h"
 #else
@@ -547,8 +568,28 @@ extern void select_idle_routine(const struct cpuinfo_x86 *c);
 
 extern unsigned long boot_option_idle_override;
 
+extern void enable_sep_cpu(void);
+extern int sysenter_setup(void);
+
+/* Defined in head.S */
+extern struct desc_ptr early_gdt_descr;
+
+extern void cpu_set_gdt(int);
+extern void switch_to_new_gdt(void);
+extern void cpu_init(void);
+extern void init_gdt(int cpu);
+
+/* from system description table in BIOS.  Mostly for MCA use, but
+ * others may find it useful. */
+extern unsigned int machine_id;
+extern unsigned int machine_submodel_id;
+extern unsigned int BIOS_revision;
+extern unsigned int mca_pentium_flag;
+
 /* Boot loader type from the setup header */
 extern int bootloader_type;
+
+extern char ignore_fpu_irq;
 #define cache_line_size() (boot_cpu_data.x86_cache_alignment)
 
 #define HAVE_ARCH_PICK_MMAP_LAYOUT 1
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index fa921aa1a93f..84a4c5e47d57 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -18,36 +18,12 @@
 #include <linux/init.h>
 #include <asm/desc_defs.h>
 
-/*
- * capabilities of CPUs
- */
-extern struct cpuinfo_x86 new_cpu_data;
-extern struct tss_struct doublefault_tss;
 
 /*
  * the following now lives in the per cpu area:
  * extern	int cpu_llc_id[NR_CPUS];
  */
 DECLARE_PER_CPU(u8, cpu_llc_id);
-extern char ignore_fpu_irq;
-
-void __init cpu_detect(struct cpuinfo_x86 *c);
-
-extern void identify_boot_cpu(void);
-extern void identify_secondary_cpu(struct cpuinfo_x86 *);
-
-#ifdef CONFIG_X86_HT
-extern void detect_ht(struct cpuinfo_x86 *c);
-#else
-static inline void detect_ht(struct cpuinfo_x86 *c) {}
-#endif
-
-/* from system description table in BIOS.  Mostly for MCA use, but
-others may find it useful. */
-extern unsigned int machine_id;
-extern unsigned int machine_submodel_id;
-extern unsigned int BIOS_revision;
-extern unsigned int mca_pentium_flag;
 
 /*
  * User space process size: 3GB (default).
@@ -277,15 +253,4 @@ static inline void prefetchw(const void *x)
 			  "r" (x));
 }
 
-extern void enable_sep_cpu(void);
-extern int sysenter_setup(void);
-
-/* Defined in head.S */
-extern struct desc_ptr early_gdt_descr;
-
-extern void cpu_set_gdt(int);
-extern void switch_to_new_gdt(void);
-extern void cpu_init(void);
-extern void init_gdt(int cpu);
-
 #endif /* __ASM_I386_PROCESSOR_H */
diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h
index 1a258749b7ca..45e382989b33 100644
--- a/include/asm-x86/processor_64.h
+++ b/include/asm-x86/processor_64.h
@@ -17,8 +17,6 @@
 #include <linux/personality.h>
 #include <asm/desc_defs.h>
 
-extern void identify_cpu(struct cpuinfo_x86 *);
-
 /*
  * User space process size. 47bits minus one guard page.
  */
@@ -51,10 +49,6 @@ union i387_union {
 	struct i387_fxsave_struct	fxsave;
 };
 
-/* Save the original ist values for checking stack pointers during debugging */
-struct orig_ist {
-	unsigned long ist[7];
-};
 DECLARE_PER_CPU(struct orig_ist, orig_ist);
 
 #define INIT_THREAD  { \
-- 
cgit v1.2.3-59-g8ed1b


From 6d48583ba9ade609634e694fc35ea62b7a8adaaa Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:31:41 +0100
Subject: x86: unify extable_{32|64}.c

Introduce fixup_exception() on 64-bit and use it in kprobes to
eliminate an #ifdef.

Only 64-bit needs search_extable() due to a stepping bug.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes.c | 12 +--------
 arch/x86/mm/Makefile_32   |  2 +-
 arch/x86/mm/Makefile_64   |  2 +-
 arch/x86/mm/extable.c     | 62 +++++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/mm/extable_32.c  | 35 --------------------------
 arch/x86/mm/extable_64.c  | 34 --------------------------
 6 files changed, 65 insertions(+), 82 deletions(-)
 create mode 100644 arch/x86/mm/extable.c
 delete mode 100644 arch/x86/mm/extable_32.c
 delete mode 100644 arch/x86/mm/extable_64.c

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 8de82c8cedd6..7848bf74e2ab 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -904,19 +904,9 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 		 * In case the user-specified fault handler returned
 		 * zero, try to fix up.
 		 */
-#ifdef CONFIG_X86_64
-		{
-			const struct exception_table_entry *fixup;
-			fixup = search_exception_tables(regs->ip);
-			if (fixup) {
-				regs->ip = fixup->fixup;
-				return 1;
-			}
-		}
-#else
 		if (fixup_exception(regs))
 			return 1;
-#endif
+
 		/*
 		 * fixup routine could not handle it,
 		 * Let do_page_fault() fix it.
diff --git a/arch/x86/mm/Makefile_32 b/arch/x86/mm/Makefile_32
index a01aca79dc69..6a5e981981f7 100644
--- a/arch/x86/mm/Makefile_32
+++ b/arch/x86/mm/Makefile_32
@@ -2,7 +2,7 @@
 # Makefile for the linux i386-specific parts of the memory manager.
 #
 
-obj-y	:= init_32.o pgtable_32.o fault_32.o ioremap_32.o extable_32.o pageattr_32.o mmap.o
+obj-y	:= init_32.o pgtable_32.o fault_32.o ioremap_32.o extable.o pageattr_32.o mmap.o
 
 obj-$(CONFIG_NUMA) += discontig_32.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
diff --git a/arch/x86/mm/Makefile_64 b/arch/x86/mm/Makefile_64
index b5a74486c3aa..09c997fe5856 100644
--- a/arch/x86/mm/Makefile_64
+++ b/arch/x86/mm/Makefile_64
@@ -2,7 +2,7 @@
 # Makefile for the linux x86_64-specific parts of the memory manager.
 #
 
-obj-y	 := init_64.o fault_64.o ioremap_64.o extable_64.o pageattr_64.o mmap.o
+obj-y	 := init_64.o fault_64.o ioremap_64.o extable.o pageattr_64.o mmap.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_NUMA) += numa_64.o
 obj-$(CONFIG_K8_NUMA) += k8topology_64.o
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
new file mode 100644
index 000000000000..7e8db53528a7
--- /dev/null
+++ b/arch/x86/mm/extable.c
@@ -0,0 +1,62 @@
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <asm/uaccess.h>
+
+
+int fixup_exception(struct pt_regs *regs)
+{
+	const struct exception_table_entry *fixup;
+
+#ifdef CONFIG_PNPBIOS
+	if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) {
+		extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
+		extern u32 pnp_bios_is_utter_crap;
+		pnp_bios_is_utter_crap = 1;
+		printk(KERN_CRIT "PNPBIOS fault.. attempting recovery.\n");
+		__asm__ volatile(
+			"movl %0, %%esp\n\t"
+			"jmp *%1\n\t"
+			: : "g" (pnp_bios_fault_esp), "g" (pnp_bios_fault_eip));
+		panic("do_trap: can't hit this");
+	}
+#endif
+
+	fixup = search_exception_tables(regs->ip);
+	if (fixup) {
+		regs->ip = fixup->fixup;
+		return 1;
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_X86_64
+/*
+ * Need to defined our own search_extable on X86_64 to work around
+ * a B stepping K8 bug.
+ */
+const struct exception_table_entry *
+search_extable(const struct exception_table_entry *first,
+	       const struct exception_table_entry *last,
+	       unsigned long value)
+{
+	/* B stepping K8 bug */
+	if ((value >> 32) == 0)
+		value |= 0xffffffffUL << 32;
+
+	while (first <= last) {
+		const struct exception_table_entry *mid;
+		long diff;
+
+		mid = (last - first) / 2 + first;
+		diff = mid->insn - value;
+		if (diff == 0)
+			return mid;
+		else if (diff < 0)
+			first = mid+1;
+		else
+			last = mid-1;
+	}
+	return NULL;
+}
+#endif
diff --git a/arch/x86/mm/extable_32.c b/arch/x86/mm/extable_32.c
deleted file mode 100644
index 41685461f8b2..000000000000
--- a/arch/x86/mm/extable_32.c
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * linux/arch/i386/mm/extable.c
- */
-
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <asm/uaccess.h>
-
-int fixup_exception(struct pt_regs *regs)
-{
-	const struct exception_table_entry *fixup;
-
-#ifdef CONFIG_PNPBIOS
-	if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs)))
-	{
-		extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
-		extern u32 pnp_bios_is_utter_crap;
-		pnp_bios_is_utter_crap = 1;
-		printk(KERN_CRIT "PNPBIOS fault.. attempting recovery.\n");
-		__asm__ volatile(
-			"movl %0, %%esp\n\t"
-			"jmp *%1\n\t"
-			: : "g" (pnp_bios_fault_esp), "g" (pnp_bios_fault_eip));
-		panic("do_trap: can't hit this");
-	}
-#endif
-
-	fixup = search_exception_tables(regs->ip);
-	if (fixup) {
-		regs->ip = fixup->fixup;
-		return 1;
-	}
-
-	return 0;
-}
diff --git a/arch/x86/mm/extable_64.c b/arch/x86/mm/extable_64.c
deleted file mode 100644
index 79ac6e7100af..000000000000
--- a/arch/x86/mm/extable_64.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * linux/arch/x86_64/mm/extable.c
- */
-
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <linux/init.h>
-#include <asm/uaccess.h>
-
-/* Simple binary search */
-const struct exception_table_entry *
-search_extable(const struct exception_table_entry *first,
-	       const struct exception_table_entry *last,
-	       unsigned long value)
-{
-	/* Work around a B stepping K8 bug */
-	if ((value >> 32) == 0)
-		value |= 0xffffffffUL << 32; 
-
-        while (first <= last) {
-		const struct exception_table_entry *mid;
-		long diff;
-
-		mid = (last - first) / 2 + first;
-		diff = mid->insn - value;
-                if (diff == 0)
-                        return mid;
-                else if (diff < 0)
-                        first = mid+1;
-                else
-                        last = mid-1;
-        }
-        return NULL;
-}
-- 
cgit v1.2.3-59-g8ed1b


From 85f2adf16955460c98131360f3d76aeb51aba073 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:31:42 +0100
Subject: x86: use helper in fault_64.c

Use the fixup_exception() helper in fault_64.c

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_64.c       | 5 +----
 include/asm-x86/uaccess_64.h | 2 ++
 2 files changed, 3 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 121c7bda6297..3a94941578fa 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -298,7 +298,6 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	struct mm_struct *mm;
 	struct vm_area_struct * vma;
 	unsigned long address;
-	const struct exception_table_entry *fixup;
 	int write, fault;
 	unsigned long flags;
 	siginfo_t info;
@@ -508,9 +507,7 @@ bad_area_nosemaphore:
 no_context:
 	
 	/* Are we prepared to handle this kernel fault?  */
-	fixup = search_exception_tables(regs->ip);
-	if (fixup) {
-		regs->ip = fixup->fixup;
+	if (fixup_exception(regs)) {
 		return;
 	}
 
diff --git a/include/asm-x86/uaccess_64.h b/include/asm-x86/uaccess_64.h
index f4ce8768ad44..31d794702719 100644
--- a/include/asm-x86/uaccess_64.h
+++ b/include/asm-x86/uaccess_64.h
@@ -65,6 +65,8 @@ struct exception_table_entry
 	unsigned long insn, fixup;
 };
 
+extern int fixup_exception(struct pt_regs *regs);
+
 #define ARCH_HAS_SEARCH_EXTABLE
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From ab4a574ef23cfa801a5078f7d7c2f2b76ecd6d91 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 30 Jan 2008 13:31:42 +0100
Subject: arch/x86/: spelling fixes

Spelling fixes.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic_32.c    | 2 +-
 arch/x86/kernel/mpparse_32.c | 2 +-
 arch/x86/kernel/vm86_32.c    | 2 +-
 arch/x86/mm/srat_64.c        | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 4c014fca2057..4330a899ddcb 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -108,7 +108,7 @@ static inline int lapic_get_version(void)
 }
 
 /*
- * Check, if the APIC is integrated or a seperate chip
+ * Check, if the APIC is integrated or a separate chip
  */
 static inline int lapic_is_integrated(void)
 {
diff --git a/arch/x86/kernel/mpparse_32.c b/arch/x86/kernel/mpparse_32.c
index bfcfc41f5607..a4c05372626b 100644
--- a/arch/x86/kernel/mpparse_32.c
+++ b/arch/x86/kernel/mpparse_32.c
@@ -1050,7 +1050,7 @@ int mp_register_gsi(u32 gsi, int triggering, int polarity)
 	int idx, bit = 0;
 	static int pci_irq = IRQ_COMPRESSION_START;
 	/*
-	 * Mapping between Global System Interrups, which
+	 * Mapping between Global System Interrupts, which
 	 * represent all possible interrupts, and IRQs
 	 * assigned to actual devices.
 	 */
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index c9f67effbc42..738c2104df30 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -384,7 +384,7 @@ static inline void clear_AC(struct kernel_vm86_regs * regs)
  * functions. However someone forgot to call clear_IF(regs)
  * in the opposite case.
  * After the command sequence CLI PUSHF STI POPF you should
- * end up with interrups disabled, but you ended up with
+ * end up with interrupts disabled, but you ended up with
  * interrupts enabled.
  *  ( I was testing my own changes, but the only bug I
  *    could find was in a function I had not changed. )
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 9be14171144b..5c0637e4c2f4 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -160,7 +160,7 @@ static inline int save_add_info(void) {return 0;}
 #endif
 /*
  * Update nodes_add and decide if to include add are in the zone.
- * Both SPARSE and RESERVE need nodes_add infomation.
+ * Both SPARSE and RESERVE need nodes_add information.
  * This code supports one contiguous hot add area per node.
  */
 static int reserve_hotadd(int node, unsigned long start, unsigned long end)
-- 
cgit v1.2.3-59-g8ed1b


From e7b5e11eaaa8ef93a34e68016de51152d0d62911 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:31:43 +0100
Subject: x86: kprobes leftover cleanups

Eliminate __always_inline, all of these static functions are
only called once.  Minor whitespace cleanup.  Eliminate one
supefluous return at end of void function.  Change the one
#ifndef to #ifdef to match the sense of the rest of the config
tests.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 7848bf74e2ab..521a469acaad 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -159,7 +159,7 @@ struct kretprobe_blackpoint kretprobe_blacklist[] = {
 const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
 
 /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
-static __always_inline void set_jmp_op(void *from, void *to)
+static void __kprobes set_jmp_op(void *from, void *to)
 {
 	struct __arch_jmp_op {
 		char op;
@@ -174,7 +174,7 @@ static __always_inline void set_jmp_op(void *from, void *to)
  * Returns non-zero if opcode is boostable.
  * RIP relative instructions are adjusted at copying time in 64 bits mode
  */
-static __always_inline int can_boost(kprobe_opcode_t *opcodes)
+static int __kprobes can_boost(kprobe_opcode_t *opcodes)
 {
 	kprobe_opcode_t opcode;
 	kprobe_opcode_t *orig_opcodes = opcodes;
@@ -392,13 +392,13 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
 		kcb->kprobe_saved_flags &= ~X86_EFLAGS_IF;
 }
 
-static __always_inline void clear_btf(void)
+static void __kprobes clear_btf(void)
 {
 	if (test_thread_flag(TIF_DEBUGCTLMSR))
 		wrmsr(MSR_IA32_DEBUGCTLMSR, 0, 0);
 }
 
-static __always_inline void restore_btf(void)
+static void __kprobes restore_btf(void)
 {
 	if (test_thread_flag(TIF_DEBUGCTLMSR))
 		wrmsr(MSR_IA32_DEBUGCTLMSR, current->thread.debugctlmsr, 0);
@@ -409,7 +409,7 @@ static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 	clear_btf();
 	regs->flags |= X86_EFLAGS_TF;
 	regs->flags &= ~X86_EFLAGS_IF;
-	/*single step inline if the instruction is an int3*/
+	/* single step inline if the instruction is an int3 */
 	if (p->opcode == BREAKPOINT_INSTRUCTION)
 		regs->ip = (unsigned long)p->addr;
 	else
@@ -767,7 +767,7 @@ static void __kprobes resume_execution(struct kprobe *p,
 	case 0xe8:	/* call relative - Fix return addr */
 		*tos = orig_ip + (*tos - copy_ip);
 		break;
-#ifndef CONFIG_X86_64
+#ifdef CONFIG_X86_32
 	case 0x9a:	/* call absolute -- same as call absolute, indirect */
 		*tos = orig_ip + (*tos - copy_ip);
 		goto no_change;
@@ -813,8 +813,6 @@ static void __kprobes resume_execution(struct kprobe *p,
 
 no_change:
 	restore_btf();
-
-	return;
 }
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From cc927a25bd704448b18b095c658cbfdd79dab865 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:49 +0100
Subject: x86: x86 i387 header cleanup

This moves some code into asm-x86/i387_64.h in preparation for
unifying this code between 32 and 64.  The 32-bit versions of
some things are copied in some existing names changed to match
32-bit names and share code.  For 64, save_i387 is moved into
an inline from i387_64.c; this matches restore_i387, which is
already an inline, and makes sense since there is exactly one
caller (in signal_64.c).  The save_i387 function could use more
cosmetic cleanup, but it is just moved verbatim in this patch.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/i387_64.c |  31 -----
 include/asm-x86/i387_64.h | 315 ++++++++++++++++++++++++++++++++++------------
 2 files changed, 233 insertions(+), 113 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/i387_64.c b/arch/x86/kernel/i387_64.c
index bfaff28fb134..f335a76d7ea7 100644
--- a/arch/x86/kernel/i387_64.c
+++ b/arch/x86/kernel/i387_64.c
@@ -71,37 +71,6 @@ void init_fpu(struct task_struct *child)
 	set_stopped_child_used_math(child);
 }
 
-/*
- * Signal frame handlers.
- */
-
-int save_i387(struct _fpstate __user *buf)
-{
-	struct task_struct *tsk = current;
-	int err = 0;
-
-	BUILD_BUG_ON(sizeof(struct user_i387_struct) !=
-			sizeof(tsk->thread.i387.fxsave));
-
-	if ((unsigned long)buf % 16) 
-		printk("save_i387: bad fpstate %p\n",buf); 
-
-	if (!used_math())
-		return 0;
-	clear_used_math(); /* trigger finit */
-	if (task_thread_info(tsk)->status & TS_USEDFPU) {
-		err = save_i387_checking((struct i387_fxsave_struct __user *)buf);
-		if (err) return err;
-		task_thread_info(tsk)->status &= ~TS_USEDFPU;
-		stts();
-	} else {
-		if (__copy_to_user(buf, &tsk->thread.i387.fxsave,
-				   sizeof(struct i387_fxsave_struct)))
-			return -1;
-	}
-	return 1;
-}
-
 /*
  * ptrace request handlers.
  */
diff --git a/include/asm-x86/i387_64.h b/include/asm-x86/i387_64.h
index 12edb9f2d755..4cea7373ac78 100644
--- a/include/asm-x86/i387_64.h
+++ b/include/asm-x86/i387_64.h
@@ -7,33 +7,23 @@
  * x86-64 work by Andi Kleen 2002
  */
 
-#ifndef __ASM_X86_64_I387_H
-#define __ASM_X86_64_I387_H
+#ifndef _ASM_X86_I387_H
+#define _ASM_X86_I387_H
 
 #include <linux/sched.h>
+#include <linux/kernel_stat.h>
 #include <asm/processor.h>
 #include <asm/sigcontext.h>
 #include <asm/user.h>
-#include <asm/thread_info.h>
 #include <asm/uaccess.h>
 
 extern void fpu_init(void);
 extern unsigned int mxcsr_feature_mask;
 extern void mxcsr_feature_mask_init(void);
 extern void init_fpu(struct task_struct *child);
-extern int save_i387(struct _fpstate __user *buf);
 extern asmlinkage void math_state_restore(void);
 
-/*
- * FPU lazy state save handling...
- */
-
-#define unlazy_fpu(tsk) do { \
-	if (task_thread_info(tsk)->status & TS_USEDFPU) \
-		save_init_fpu(tsk); 			\
-	else						\
-		tsk->fpu_counter = 0;			\
-} while (0)
+#ifdef CONFIG_X86_64
 
 /* Ignore delayed exceptions from user space */
 static inline void tolerant_fwait(void)
@@ -46,52 +36,8 @@ static inline void tolerant_fwait(void)
 		     "	.previous\n");
 }
 
-#define clear_fpu(tsk) do { \
-	if (task_thread_info(tsk)->status & TS_USEDFPU) {	\
-		tolerant_fwait();				\
-		task_thread_info(tsk)->status &= ~TS_USEDFPU;	\
-		stts();						\
-	}							\
-} while (0)
-
-/*
- * ptrace request handers...
- */
-extern int get_fpregs(struct user_i387_struct __user *buf,
-		      struct task_struct *tsk);
-extern int set_fpregs(struct task_struct *tsk,
-		      struct user_i387_struct __user *buf);
-
-/*
- * i387 state interaction
- */
-#define get_fpu_mxcsr(t) ((t)->thread.i387.fxsave.mxcsr)
-#define get_fpu_cwd(t) ((t)->thread.i387.fxsave.cwd)
-#define get_fpu_fxsr_twd(t) ((t)->thread.i387.fxsave.twd)
-#define get_fpu_swd(t) ((t)->thread.i387.fxsave.swd)
-#define set_fpu_cwd(t,val) ((t)->thread.i387.fxsave.cwd = (val))
-#define set_fpu_swd(t,val) ((t)->thread.i387.fxsave.swd = (val))
-#define set_fpu_fxsr_twd(t,val) ((t)->thread.i387.fxsave.twd = (val))
-
-#define X87_FSW_ES (1 << 7)	/* Exception Summary */
-
-/* AMD CPUs don't save/restore FDP/FIP/FOP unless an exception
-   is pending. Clear the x87 state here by setting it to fixed
-   values. The kernel data segment can be sometimes 0 and sometimes
-   new user value. Both should be ok.
-   Use the PDA as safe address because it should be already in L1. */
-static inline void clear_fpu_state(struct i387_fxsave_struct *fx)
+static inline int restore_fpu_checking(struct i387_fxsave_struct *fx)
 {
-	if (unlikely(fx->swd & X87_FSW_ES))
-		 asm volatile("fnclex");
-	alternative_input(ASM_NOP8 ASM_NOP2,
-	     	     "    emms\n"		/* clear stack tags */
-	     	     "    fildl %%gs:0",	/* load to clear state */
-		     X86_FEATURE_FXSAVE_LEAK);
-}
-
-static inline int restore_fpu_checking(struct i387_fxsave_struct *fx) 
-{ 
 	int err;
 
 	asm volatile("1:  rex64/fxrstor (%[fx])\n\t"
@@ -105,7 +51,7 @@ static inline int restore_fpu_checking(struct i387_fxsave_struct *fx)
 		     "   .quad  1b,3b\n"
 		     ".previous"
 		     : [err] "=r" (err)
-#if 0 /* See comment in __fxsave_clear() below. */
+#if 0 /* See comment in __save_init_fpu() below. */
 		     : [fx] "r" (fx), "m" (*fx), "0" (0));
 #else
 		     : [fx] "cdaSDb" (fx), "m" (*fx), "0" (0));
@@ -113,10 +59,27 @@ static inline int restore_fpu_checking(struct i387_fxsave_struct *fx)
 	if (unlikely(err))
 		init_fpu(current);
 	return err;
-} 
+}
 
-static inline int save_i387_checking(struct i387_fxsave_struct __user *fx) 
-{ 
+#define X87_FSW_ES (1 << 7)	/* Exception Summary */
+
+/* AMD CPUs don't save/restore FDP/FIP/FOP unless an exception
+   is pending. Clear the x87 state here by setting it to fixed
+   values. The kernel data segment can be sometimes 0 and sometimes
+   new user value. Both should be ok.
+   Use the PDA as safe address because it should be already in L1. */
+static inline void clear_fpu_state(struct i387_fxsave_struct *fx)
+{
+	if (unlikely(fx->swd & X87_FSW_ES))
+		 asm volatile("fnclex");
+	alternative_input(ASM_NOP8 ASM_NOP2,
+		     "    emms\n"		/* clear stack tags */
+		     "    fildl %%gs:0",	/* load to clear state */
+		     X86_FEATURE_FXSAVE_LEAK);
+}
+
+static inline int save_i387_checking(struct i387_fxsave_struct __user *fx)
+{
 	int err;
 
 	asm volatile("1:  rex64/fxsave (%[fx])\n\t"
@@ -139,9 +102,9 @@ static inline int save_i387_checking(struct i387_fxsave_struct __user *fx)
 		err = -EFAULT;
 	/* No need to clear here because the caller clears USED_MATH */
 	return err;
-} 
+}
 
-static inline void __fxsave_clear(struct task_struct *tsk)
+static inline void __save_init_fpu(struct task_struct *tsk)
 {
 	/* Using "rex64; fxsave %0" is broken because, if the memory operand
 	   uses any extended registers for addressing, a second REX prefix
@@ -169,18 +132,142 @@ static inline void __fxsave_clear(struct task_struct *tsk)
 					      thread.i387.fxsave)));
 #endif
 	clear_fpu_state(&tsk->thread.i387.fxsave);
+	task_thread_info(tsk)->status &= ~TS_USEDFPU;
+}
+
+/*
+ * Signal frame handlers.
+ */
+
+static inline int save_i387(struct _fpstate __user *buf)
+{
+	struct task_struct *tsk = current;
+	int err = 0;
+
+	BUILD_BUG_ON(sizeof(struct user_i387_struct) !=
+			sizeof(tsk->thread.i387.fxsave));
+
+	if ((unsigned long)buf % 16)
+		printk("save_i387: bad fpstate %p\n", buf);
+
+	if (!used_math())
+		return 0;
+	clear_used_math(); /* trigger finit */
+	if (task_thread_info(tsk)->status & TS_USEDFPU) {
+		err = save_i387_checking((struct i387_fxsave_struct __user *)buf);
+		if (err) return err;
+		task_thread_info(tsk)->status &= ~TS_USEDFPU;
+		stts();
+	} else {
+		if (__copy_to_user(buf, &tsk->thread.i387.fxsave,
+				   sizeof(struct i387_fxsave_struct)))
+			return -1;
+	}
+	return 1;
+}
+
+/*
+ * This restores directly out of user space. Exceptions are handled.
+ */
+static inline int restore_i387(struct _fpstate __user *buf)
+{
+	set_used_math();
+	if (!(task_thread_info(current)->status & TS_USEDFPU)) {
+		clts();
+		task_thread_info(current)->status |= TS_USEDFPU;
+	}
+	return restore_fpu_checking((__force struct i387_fxsave_struct *)buf);
+}
+
+#else  /* CONFIG_X86_32 */
+
+static inline void tolerant_fwait(void)
+{
+	asm volatile("fnclex ; fwait");
+}
+
+static inline void restore_fpu(struct task_struct *tsk)
+{
+	/*
+	 * The "nop" is needed to make the instructions the same
+	 * length.
+	 */
+	alternative_input(
+		"nop ; frstor %1",
+		"fxrstor %1",
+		X86_FEATURE_FXSR,
+		"m" ((tsk)->thread.i387.fxsave));
+}
+
+/* We need a safe address that is cheap to find and that is already
+   in L1 during context switch. The best choices are unfortunately
+   different for UP and SMP */
+#ifdef CONFIG_SMP
+#define safe_address (__per_cpu_offset[0])
+#else
+#define safe_address (kstat_cpu(0).cpustat.user)
+#endif
+
+/*
+ * These must be called with preempt disabled
+ */
+static inline void __save_init_fpu(struct task_struct *tsk)
+{
+	/* Use more nops than strictly needed in case the compiler
+	   varies code */
+	alternative_input(
+		"fnsave %[fx] ;fwait;" GENERIC_NOP8 GENERIC_NOP4,
+		"fxsave %[fx]\n"
+		"bt $7,%[fsw] ; jnc 1f ; fnclex\n1:",
+		X86_FEATURE_FXSR,
+		[fx] "m" (tsk->thread.i387.fxsave),
+		[fsw] "m" (tsk->thread.i387.fxsave.swd) : "memory");
+	/* AMD K7/K8 CPUs don't save/restore FDP/FIP/FOP unless an exception
+	   is pending.  Clear the x87 state here by setting it to fixed
+	   values. safe_address is a random variable that should be in L1 */
+	alternative_input(
+		GENERIC_NOP8 GENERIC_NOP2,
+		"emms\n\t"	  	/* clear stack tags */
+		"fildl %[addr]", 	/* set F?P to defined value */
+		X86_FEATURE_FXSAVE_LEAK,
+		[addr] "m" (safe_address));
+	task_thread_info(tsk)->status &= ~TS_USEDFPU;
+}
+
+/*
+ * Signal frame handlers...
+ */
+extern int save_i387(struct _fpstate __user *buf);
+extern int restore_i387(struct _fpstate __user *buf);
+
+#endif	/* CONFIG_X86_64 */
+
+static inline void __unlazy_fpu(struct task_struct *tsk)
+{
+	if (task_thread_info(tsk)->status & TS_USEDFPU) {
+		__save_init_fpu(tsk);
+		stts();
+	} else
+		tsk->fpu_counter = 0;
+}
+
+static inline void __clear_fpu(struct task_struct *tsk)
+{
+	if (task_thread_info(tsk)->status & TS_USEDFPU) {
+		tolerant_fwait();
+		task_thread_info(tsk)->status &= ~TS_USEDFPU;
+		stts();
+	}
 }
 
 static inline void kernel_fpu_begin(void)
 {
 	struct thread_info *me = current_thread_info();
 	preempt_disable();
-	if (me->status & TS_USEDFPU) {
-		__fxsave_clear(me->task);
-		me->status &= ~TS_USEDFPU;
-		return;
-	}
-	clts();
+	if (me->status & TS_USEDFPU)
+		__save_init_fpu(me->task);
+	else
+		clts();
 }
 
 static inline void kernel_fpu_end(void)
@@ -189,24 +276,88 @@ static inline void kernel_fpu_end(void)
 	preempt_enable();
 }
 
+#ifdef CONFIG_X86_64
+
 static inline void save_init_fpu(struct task_struct *tsk)
 {
- 	__fxsave_clear(tsk);
-	task_thread_info(tsk)->status &= ~TS_USEDFPU;
+	__save_init_fpu(tsk);
 	stts();
 }
 
-/* 
- * This restores directly out of user space. Exceptions are handled.
+#define unlazy_fpu	__unlazy_fpu
+#define clear_fpu	__clear_fpu
+
+#else  /* CONFIG_X86_32 */
+
+/*
+ * These disable preemption on their own and are safe
  */
-static inline int restore_i387(struct _fpstate __user *buf)
+static inline void save_init_fpu(struct task_struct *tsk)
 {
-	set_used_math();
-	if (!(task_thread_info(current)->status & TS_USEDFPU)) {
-		clts();
-		task_thread_info(current)->status |= TS_USEDFPU;
+	preempt_disable();
+	__save_init_fpu(tsk);
+	stts();
+	preempt_enable();
+}
+
+static inline void unlazy_fpu(struct task_struct *tsk)
+{
+	preempt_disable();
+	__unlazy_fpu(tsk);
+	preempt_enable();
+}
+
+static inline void clear_fpu(struct task_struct *tsk)
+{
+	preempt_disable();
+	__clear_fpu(tsk);
+	preempt_enable();
+}
+
+#endif	/* CONFIG_X86_64 */
+
+/*
+ * ptrace request handlers...
+ */
+extern int get_fpregs(struct user_i387_struct __user *buf,
+		      struct task_struct *tsk);
+extern int set_fpregs(struct task_struct *tsk,
+		      struct user_i387_struct __user *buf);
+
+struct user_fxsr_struct;
+extern int get_fpxregs(struct user_fxsr_struct __user *buf,
+		       struct task_struct *tsk);
+extern int set_fpxregs(struct task_struct *tsk,
+		       struct user_fxsr_struct __user *buf);
+
+/*
+ * i387 state interaction
+ */
+static inline unsigned short get_fpu_cwd(struct task_struct *tsk)
+{
+	if (cpu_has_fxsr) {
+		return tsk->thread.i387.fxsave.cwd;
+	} else {
+		return (unsigned short)tsk->thread.i387.fsave.cwd;
+	}
+}
+
+static inline unsigned short get_fpu_swd(struct task_struct *tsk)
+{
+	if (cpu_has_fxsr) {
+		return tsk->thread.i387.fxsave.swd;
+	} else {
+		return (unsigned short)tsk->thread.i387.fsave.swd;
+	}
+}
+
+static inline unsigned short get_fpu_mxcsr(struct task_struct *tsk)
+{
+	if (cpu_has_xmm) {
+		return tsk->thread.i387.fxsave.mxcsr;
+	} else {
+		return MXCSR_DEFAULT;
 	}
-	return restore_fpu_checking((__force struct i387_fxsave_struct *)buf);
 }
 
-#endif /* __ASM_X86_64_I387_H */
+#endif	/* _ASM_X86_I387_H */
-- 
cgit v1.2.3-59-g8ed1b


From ff0ebb23c6eedc9ac0d84638489d806b30bde8b0 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:49 +0100
Subject: x86: x86 user_regset math_emu

This converts the ptrace/signal accessors for i387 math_emu
state to the user_regset interface style, and calls these
from the old interfaces.

It also cleans up math_emulate's ptrace check to be a
single-step check, which is what it really wants.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/math-emu/fpu_entry.c | 86 +++++++++++++++++++++++++++----------------
 1 file changed, 54 insertions(+), 32 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index 377c60dfa2f0..cfbdaa1532ce 100644
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -25,10 +25,11 @@
  +---------------------------------------------------------------------------*/
 
 #include <linux/signal.h>
-#include <linux/ptrace.h>
+#include <linux/regset.h>
 
 #include <asm/uaccess.h>
 #include <asm/desc.h>
+#include <asm/user.h>
 
 #include "fpu_system.h"
 #include "fpu_emu.h"
@@ -198,9 +199,7 @@ asmlinkage void math_emulate(long arg)
 			code_limit = 0xffffffff;
 	}
 
-	FPU_lookahead = 1;
-	if (current->ptrace & PT_PTRACED)
-		FPU_lookahead = 0;
+	FPU_lookahead = !(FPU_EFLAGS & X86_EFLAGS_TF);
 
 	if (!valid_prefix(&byte1, (u_char __user **) & FPU_EIP,
 			  &addr_modes.override)) {
@@ -673,31 +672,37 @@ void math_abort(struct info *info, unsigned int signal)
 #define sstatus_word() \
   ((S387->swd & ~SW_Top & 0xffff) | ((S387->ftop << SW_Top_Shift) & SW_Top))
 
-int restore_i387_soft(void *s387, struct _fpstate __user *buf)
+int fpregs_soft_set(struct task_struct *target,
+		    const struct user_regset *regset,
+		    unsigned int pos, unsigned int count,
+		    const void *kbuf, const void __user *ubuf)
 {
-	u_char __user *d = (u_char __user *) buf;
+	struct i387_soft_struct *s387 = &target->thread.i387.soft;
+	void *space = s387->st_space;
+	int ret;
 	int offset, other, i, tags, regnr, tag, newtop;
 
 	RE_ENTRANT_CHECK_OFF;
-	FPU_access_ok(VERIFY_READ, d, 7 * 4 + 8 * 10);
-	if (__copy_from_user(&S387->cwd, d, 7 * 4))
-		return -1;
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, s387, 0,
+				 offsetof(struct i387_soft_struct, st_space));
 	RE_ENTRANT_CHECK_ON;
 
-	d += 7 * 4;
+	if (ret)
+		return ret;
 
 	S387->ftop = (S387->swd >> SW_Top_Shift) & 7;
 	offset = (S387->ftop & 7) * 10;
 	other = 80 - offset;
 
 	RE_ENTRANT_CHECK_OFF;
+
 	/* Copy all registers in stack order. */
-	if (__copy_from_user(((u_char *) & S387->st_space) + offset, d, other))
-		return -1;
-	if (offset)
-		if (__copy_from_user
-		    ((u_char *) & S387->st_space, d + other, offset))
-			return -1;
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				 space + offset, 0, other);
+	if (!ret && offset)
+		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+					 space, 0, offset);
+
 	RE_ENTRANT_CHECK_ON;
 
 	/* The tags may need to be corrected now. */
@@ -716,16 +721,21 @@ int restore_i387_soft(void *s387, struct _fpstate __user *buf)
 	}
 	S387->twd = tags;
 
-	return 0;
+	return ret;
 }
 
-int save_i387_soft(void *s387, struct _fpstate __user * buf)
+int fpregs_soft_get(struct task_struct *target,
+		    const struct user_regset *regset,
+		    unsigned int pos, unsigned int count,
+		    void *kbuf, void __user *ubuf)
 {
-	u_char __user *d = (u_char __user *) buf;
+	struct i387_soft_struct *s387 = &target->thread.i387.soft;
+	const void *space = s387->st_space;
+	int ret;
 	int offset = (S387->ftop & 7) * 10, other = 80 - offset;
 
 	RE_ENTRANT_CHECK_OFF;
-	FPU_access_ok(VERIFY_WRITE, d, 7 * 4 + 8 * 10);
+
 #ifdef PECULIAR_486
 	S387->cwd &= ~0xe080;
 	/* An 80486 sets nearly all of the reserved bits to 1. */
@@ -735,21 +745,33 @@ int save_i387_soft(void *s387, struct _fpstate __user * buf)
 	S387->fcs &= ~0xf8000000;
 	S387->fos |= 0xffff0000;
 #endif /* PECULIAR_486 */
-	if (__copy_to_user(d, &S387->cwd, 7 * 4))
-		return -1;
-	RE_ENTRANT_CHECK_ON;
 
-	d += 7 * 4;
+	ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, s387, 0,
+				  offsetof(struct i387_soft_struct, st_space));
 
-	RE_ENTRANT_CHECK_OFF;
 	/* Copy all registers in stack order. */
-	if (__copy_to_user(d, ((u_char *) & S387->st_space) + offset, other))
-		return -1;
-	if (offset)
-		if (__copy_to_user
-		    (d + other, (u_char *) & S387->st_space, offset))
-			return -1;
+	if (!ret)
+		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+					  space + offset, 0, other);
+	if (!ret)
+		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+					  space, 0, offset);
+
 	RE_ENTRANT_CHECK_ON;
 
-	return 1;
+	return ret;
+}
+
+int save_i387_soft(void *s387, struct _fpstate __user *buf)
+{
+	return fpregs_soft_get(current, NULL,
+			       0, sizeof(struct user_i387_struct),
+			       NULL, buf) ? -1 : 1;
+}
+
+int restore_i387_soft(void *s387, struct _fpstate __user *buf)
+{
+	return fpregs_soft_set(current, NULL,
+			       0, sizeof(struct user_i387_struct),
+			       NULL, buf) ? -1 : 1;
 }
-- 
cgit v1.2.3-59-g8ed1b


From b7b71725fb9584454bfe5f231223bd63421798fb Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:50 +0100
Subject: x86: i387 renaming

This renames arch/x86/kernel/{i387_32.c => i387.c}.
This is a pure renaming, but paves the way for merging
the 32-bit and 64-bit versions of this code.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile_32 |   3 +-
 arch/x86/kernel/i387.c      | 551 ++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/i387_32.c   | 551 --------------------------------------------
 3 files changed, 553 insertions(+), 552 deletions(-)
 create mode 100644 arch/x86/kernel/i387.c
 delete mode 100644 arch/x86/kernel/i387_32.c

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index c7a959da363a..a67198044b0d 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -7,9 +7,10 @@ CPPFLAGS_vmlinux.lds += -Ui386
 
 obj-y	:= process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
 		time_32.o ioport_32.o ldt.o setup_32.o i8259_32.o sys_i386_32.o \
-		pci-dma_32.o i386_ksyms_32.o i387_32.o bootflag.o e820_32.o\
+		pci-dma_32.o i386_ksyms_32.o bootflag.o e820_32.o\
 		quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o io_delay.o rtc.o
 
+obj-y				+= i387.o
 obj-y				+= ptrace.o
 obj-y				+= ds.o
 obj-y				+= tls.o
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
new file mode 100644
index 000000000000..bebe03463461
--- /dev/null
+++ b/arch/x86/kernel/i387.c
@@ -0,0 +1,551 @@
+/*
+ *  Copyright (C) 1994 Linus Torvalds
+ *
+ *  Pentium III FXSR, SSE support
+ *  General FPU state handling cleanups
+ *	Gareth Hughes <gareth@valinux.com>, May 2000
+ */
+
+#include <linux/sched.h>
+#include <linux/module.h>
+#include <asm/processor.h>
+#include <asm/i387.h>
+#include <asm/math_emu.h>
+#include <asm/sigcontext.h>
+#include <asm/user.h>
+#include <asm/ptrace.h>
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_MATH_EMULATION
+#define HAVE_HWFP (boot_cpu_data.hard_math)
+#else
+#define HAVE_HWFP 1
+#endif
+
+static unsigned long mxcsr_feature_mask __read_mostly = 0xffffffff;
+
+void mxcsr_feature_mask_init(void)
+{
+	unsigned long mask = 0;
+	clts();
+	if (cpu_has_fxsr) {
+		memset(&current->thread.i387.fxsave, 0,
+		       sizeof(struct i387_fxsave_struct));
+		asm volatile("fxsave %0" : : "m" (current->thread.i387.fxsave));
+		mask = current->thread.i387.fxsave.mxcsr_mask;
+		if (mask == 0)
+			mask = 0x0000ffbf;
+	}
+	mxcsr_feature_mask &= mask;
+	stts();
+}
+
+/*
+ * The _current_ task is using the FPU for the first time
+ * so initialize it and set the mxcsr to its default
+ * value at reset if we support XMM instructions and then
+ * remeber the current task has used the FPU.
+ */
+void init_fpu(struct task_struct *tsk)
+{
+	if (cpu_has_fxsr) {
+		memset(&tsk->thread.i387.fxsave, 0,
+		       sizeof(struct i387_fxsave_struct));
+		tsk->thread.i387.fxsave.cwd = 0x37f;
+		if (cpu_has_xmm)
+			tsk->thread.i387.fxsave.mxcsr = 0x1f80;
+	} else {
+		memset(&tsk->thread.i387.fsave, 0,
+		       sizeof(struct i387_fsave_struct));
+		tsk->thread.i387.fsave.cwd = 0xffff037fu;
+		tsk->thread.i387.fsave.swd = 0xffff0000u;
+		tsk->thread.i387.fsave.twd = 0xffffffffu;
+		tsk->thread.i387.fsave.fos = 0xffff0000u;
+	}
+	/* only the device not available exception
+	 * or ptrace can call init_fpu */
+	set_stopped_child_used_math(tsk);
+}
+
+/*
+ * FPU lazy state save handling.
+ */
+
+void kernel_fpu_begin(void)
+{
+	struct thread_info *thread = current_thread_info();
+
+	preempt_disable();
+	if (thread->status & TS_USEDFPU) {
+		__save_init_fpu(thread->task);
+		return;
+	}
+	clts();
+}
+EXPORT_SYMBOL_GPL(kernel_fpu_begin);
+
+/*
+ * FPU tag word conversions.
+ */
+
+static inline unsigned short twd_i387_to_fxsr(unsigned short twd)
+{
+	unsigned int tmp; /* to avoid 16 bit prefixes in the code */
+
+	/* Transform each pair of bits into 01 (valid) or 00 (empty) */
+	tmp = ~twd;
+	tmp = (tmp | (tmp >> 1)) & 0x5555; /* 0V0V0V0V0V0V0V0V */
+	/* and move the valid bits to the lower byte. */
+	tmp = (tmp | (tmp >> 1)) & 0x3333; /* 00VV00VV00VV00VV */
+	tmp = (tmp | (tmp >> 2)) & 0x0f0f; /* 0000VVVV0000VVVV */
+	tmp = (tmp | (tmp >> 4)) & 0x00ff; /* 00000000VVVVVVVV */
+
+	return tmp;
+}
+
+static inline unsigned long twd_fxsr_to_i387(struct i387_fxsave_struct *fxsave)
+{
+	struct _fpxreg *st = NULL;
+	unsigned long tos = (fxsave->swd >> 11) & 7;
+	unsigned long twd = (unsigned long) fxsave->twd;
+	unsigned long tag;
+	unsigned long ret = 0xffff0000u;
+	int i;
+
+#define FPREG_ADDR(f, n)	((void *)&(f)->st_space + (n) * 16);
+
+	for (i = 0; i < 8; i++) {
+		if (twd & 0x1) {
+			st = FPREG_ADDR(fxsave, (i - tos) & 7);
+
+			switch (st->exponent & 0x7fff) {
+			case 0x7fff:
+				tag = 2;		/* Special */
+				break;
+			case 0x0000:
+				if (!st->significand[0] &&
+				    !st->significand[1] &&
+				    !st->significand[2] &&
+				    !st->significand[3]) {
+					tag = 1;	/* Zero */
+				} else {
+					tag = 2;	/* Special */
+				}
+				break;
+			default:
+				if (st->significand[3] & 0x8000) {
+					tag = 0;	/* Valid */
+				} else {
+					tag = 2;	/* Special */
+				}
+				break;
+			}
+		} else {
+			tag = 3;			/* Empty */
+		}
+		ret |= (tag << (2 * i));
+		twd = twd >> 1;
+	}
+	return ret;
+}
+
+/*
+ * FPU state interaction.
+ */
+
+unsigned short get_fpu_cwd(struct task_struct *tsk)
+{
+	if (cpu_has_fxsr) {
+		return tsk->thread.i387.fxsave.cwd;
+	} else {
+		return (unsigned short)tsk->thread.i387.fsave.cwd;
+	}
+}
+
+unsigned short get_fpu_swd(struct task_struct *tsk)
+{
+	if (cpu_has_fxsr) {
+		return tsk->thread.i387.fxsave.swd;
+	} else {
+		return (unsigned short)tsk->thread.i387.fsave.swd;
+	}
+}
+
+#if 0
+unsigned short get_fpu_twd(struct task_struct *tsk)
+{
+	if (cpu_has_fxsr) {
+		return tsk->thread.i387.fxsave.twd;
+	} else {
+		return (unsigned short)tsk->thread.i387.fsave.twd;
+	}
+}
+#endif  /*  0  */
+
+unsigned short get_fpu_mxcsr(struct task_struct *tsk)
+{
+	if (cpu_has_xmm) {
+		return tsk->thread.i387.fxsave.mxcsr;
+	} else {
+		return 0x1f80;
+	}
+}
+
+#if 0
+
+void set_fpu_cwd(struct task_struct *tsk, unsigned short cwd)
+{
+	if (cpu_has_fxsr) {
+		tsk->thread.i387.fxsave.cwd = cwd;
+	} else {
+		tsk->thread.i387.fsave.cwd = ((long)cwd | 0xffff0000u);
+	}
+}
+
+void set_fpu_swd(struct task_struct *tsk, unsigned short swd)
+{
+	if (cpu_has_fxsr) {
+		tsk->thread.i387.fxsave.swd = swd;
+	} else {
+		tsk->thread.i387.fsave.swd = ((long)swd | 0xffff0000u);
+	}
+}
+
+void set_fpu_twd(struct task_struct *tsk, unsigned short twd)
+{
+	if (cpu_has_fxsr) {
+		tsk->thread.i387.fxsave.twd = twd_i387_to_fxsr(twd);
+	} else {
+		tsk->thread.i387.fsave.twd = ((long)twd | 0xffff0000u);
+	}
+}
+
+#endif  /*  0  */
+
+/*
+ * FXSR floating point environment conversions.
+ */
+
+static int convert_fxsr_to_user(struct _fpstate __user *buf,
+				struct i387_fxsave_struct *fxsave)
+{
+	unsigned long env[7];
+	struct _fpreg __user *to;
+	struct _fpxreg *from;
+	int i;
+
+	env[0] = (unsigned long)fxsave->cwd | 0xffff0000ul;
+	env[1] = (unsigned long)fxsave->swd | 0xffff0000ul;
+	env[2] = twd_fxsr_to_i387(fxsave);
+	env[3] = fxsave->fip;
+	env[4] = fxsave->fcs | ((unsigned long)fxsave->fop << 16);
+	env[5] = fxsave->foo;
+	env[6] = fxsave->fos;
+
+	if (__copy_to_user(buf, env, 7 * sizeof(unsigned long)))
+		return 1;
+
+	to = &buf->_st[0];
+	from = (struct _fpxreg *) &fxsave->st_space[0];
+	for (i = 0; i < 8; i++, to++, from++) {
+		unsigned long __user *t = (unsigned long __user *)to;
+		unsigned long *f = (unsigned long *)from;
+
+		if (__put_user(*f, t) ||
+		    __put_user(*(f + 1), t + 1) ||
+		    __put_user(from->exponent, &to->exponent))
+			return 1;
+	}
+	return 0;
+}
+
+static int convert_fxsr_from_user(struct i387_fxsave_struct *fxsave,
+				  struct _fpstate __user *buf)
+{
+	unsigned long env[7];
+	struct _fpxreg *to;
+	struct _fpreg __user *from;
+	int i;
+
+	if (__copy_from_user(env, buf, 7 * sizeof(long)))
+		return 1;
+
+	fxsave->cwd = (unsigned short)(env[0] & 0xffff);
+	fxsave->swd = (unsigned short)(env[1] & 0xffff);
+	fxsave->twd = twd_i387_to_fxsr((unsigned short)(env[2] & 0xffff));
+	fxsave->fip = env[3];
+	fxsave->fop = (unsigned short)((env[4] & 0xffff0000ul) >> 16);
+	fxsave->fcs = (env[4] & 0xffff);
+	fxsave->foo = env[5];
+	fxsave->fos = env[6];
+
+	to = (struct _fpxreg *) &fxsave->st_space[0];
+	from = &buf->_st[0];
+	for (i = 0; i < 8; i++, to++, from++) {
+		unsigned long *t = (unsigned long *)to;
+		unsigned long __user *f = (unsigned long __user *)from;
+
+		if (__get_user(*t, f) ||
+		    __get_user(*(t + 1), f + 1) ||
+		    __get_user(to->exponent, &from->exponent))
+			return 1;
+	}
+	return 0;
+}
+
+/*
+ * Signal frame handlers.
+ */
+
+static inline int save_i387_fsave(struct _fpstate __user *buf)
+{
+	struct task_struct *tsk = current;
+
+	unlazy_fpu(tsk);
+	tsk->thread.i387.fsave.status = tsk->thread.i387.fsave.swd;
+	if (__copy_to_user(buf, &tsk->thread.i387.fsave,
+			   sizeof(struct i387_fsave_struct)))
+		return -1;
+	return 1;
+}
+
+static int save_i387_fxsave(struct _fpstate __user *buf)
+{
+	struct task_struct *tsk = current;
+	int err = 0;
+
+	unlazy_fpu(tsk);
+
+	if (convert_fxsr_to_user(buf, &tsk->thread.i387.fxsave))
+		return -1;
+
+	err |= __put_user(tsk->thread.i387.fxsave.swd, &buf->status);
+	err |= __put_user(X86_FXSR_MAGIC, &buf->magic);
+	if (err)
+		return -1;
+
+	if (__copy_to_user(&buf->_fxsr_env[0], &tsk->thread.i387.fxsave,
+			   sizeof(struct i387_fxsave_struct)))
+		return -1;
+	return 1;
+}
+
+int save_i387(struct _fpstate __user *buf)
+{
+	if (!used_math())
+		return 0;
+
+	/* This will cause a "finit" to be triggered by the next
+	 * attempted FPU operation by the 'current' process.
+	 */
+	clear_used_math();
+
+	if (HAVE_HWFP) {
+		if (cpu_has_fxsr) {
+			return save_i387_fxsave(buf);
+		} else {
+			return save_i387_fsave(buf);
+		}
+	} else {
+		return save_i387_soft(&current->thread.i387.soft, buf);
+	}
+}
+
+static inline int restore_i387_fsave(struct _fpstate __user *buf)
+{
+	struct task_struct *tsk = current;
+	clear_fpu(tsk);
+	return __copy_from_user(&tsk->thread.i387.fsave, buf,
+				sizeof(struct i387_fsave_struct));
+}
+
+static int restore_i387_fxsave(struct _fpstate __user *buf)
+{
+	int err;
+	struct task_struct *tsk = current;
+	clear_fpu(tsk);
+	err = __copy_from_user(&tsk->thread.i387.fxsave, &buf->_fxsr_env[0],
+			       sizeof(struct i387_fxsave_struct));
+	/* mxcsr reserved bits must be masked to zero for security reasons */
+	tsk->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
+	return err ? 1 : convert_fxsr_from_user(&tsk->thread.i387.fxsave, buf);
+}
+
+int restore_i387(struct _fpstate __user *buf)
+{
+	int err;
+
+	if (HAVE_HWFP) {
+		if (cpu_has_fxsr) {
+			err = restore_i387_fxsave(buf);
+		} else {
+			err = restore_i387_fsave(buf);
+		}
+	} else {
+		err = restore_i387_soft(&current->thread.i387.soft, buf);
+	}
+	set_used_math();
+	return err;
+}
+
+/*
+ * ptrace request handlers.
+ */
+
+static inline int get_fpregs_fsave(struct user_i387_struct __user *buf,
+				   struct task_struct *tsk)
+{
+	return __copy_to_user(buf, &tsk->thread.i387.fsave,
+			      sizeof(struct user_i387_struct));
+}
+
+static inline int get_fpregs_fxsave(struct user_i387_struct __user *buf,
+				    struct task_struct *tsk)
+{
+	return convert_fxsr_to_user((struct _fpstate __user *)buf,
+				    &tsk->thread.i387.fxsave);
+}
+
+int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *tsk)
+{
+	if (HAVE_HWFP) {
+		if (cpu_has_fxsr) {
+			return get_fpregs_fxsave(buf, tsk);
+		} else {
+			return get_fpregs_fsave(buf, tsk);
+		}
+	} else {
+		return save_i387_soft(&tsk->thread.i387.soft,
+				      (struct _fpstate __user *)buf);
+	}
+}
+
+static inline int set_fpregs_fsave(struct task_struct *tsk,
+				   struct user_i387_struct __user *buf)
+{
+	return __copy_from_user(&tsk->thread.i387.fsave, buf,
+				sizeof(struct user_i387_struct));
+}
+
+static inline int set_fpregs_fxsave(struct task_struct *tsk,
+				    struct user_i387_struct __user *buf)
+{
+	return convert_fxsr_from_user(&tsk->thread.i387.fxsave,
+				      (struct _fpstate __user *)buf);
+}
+
+int set_fpregs(struct task_struct *tsk, struct user_i387_struct __user *buf)
+{
+	if (HAVE_HWFP) {
+		if (cpu_has_fxsr) {
+			return set_fpregs_fxsave(tsk, buf);
+		} else {
+			return set_fpregs_fsave(tsk, buf);
+		}
+	} else {
+		return restore_i387_soft(&tsk->thread.i387.soft,
+					 (struct _fpstate __user *)buf);
+	}
+}
+
+int get_fpxregs(struct user_fxsr_struct __user *buf, struct task_struct *tsk)
+{
+	if (cpu_has_fxsr) {
+		if (__copy_to_user(buf, &tsk->thread.i387.fxsave,
+				   sizeof(struct user_fxsr_struct)))
+			return -EFAULT;
+		return 0;
+	} else {
+		return -EIO;
+	}
+}
+
+int set_fpxregs(struct task_struct *tsk, struct user_fxsr_struct __user *buf)
+{
+	int ret = 0;
+
+	if (cpu_has_fxsr) {
+		if (__copy_from_user(&tsk->thread.i387.fxsave, buf,
+				     sizeof(struct user_fxsr_struct)))
+			ret = -EFAULT;
+		/* mxcsr reserved bits must be masked to zero
+		 * for security reasons */
+		tsk->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
+	} else {
+		ret = -EIO;
+	}
+	return ret;
+}
+
+/*
+ * FPU state for core dumps.
+ */
+
+static inline void copy_fpu_fsave(struct task_struct *tsk,
+				  struct user_i387_struct *fpu)
+{
+	memcpy(fpu, &tsk->thread.i387.fsave,
+	       sizeof(struct user_i387_struct));
+}
+
+static inline void copy_fpu_fxsave(struct task_struct *tsk,
+				   struct user_i387_struct *fpu)
+{
+	unsigned short *to;
+	unsigned short *from;
+	int i;
+
+	memcpy(fpu, &tsk->thread.i387.fxsave, 7 * sizeof(long));
+
+	to = (unsigned short *)&fpu->st_space[0];
+	from = (unsigned short *)&tsk->thread.i387.fxsave.st_space[0];
+	for (i = 0; i < 8; i++, to += 5, from += 8)
+		memcpy(to, from, 5 * sizeof(unsigned short));
+}
+
+int dump_fpu(struct pt_regs *regs, struct user_i387_struct *fpu)
+{
+	int fpvalid;
+	struct task_struct *tsk = current;
+
+	fpvalid = !!used_math();
+	if (fpvalid) {
+		unlazy_fpu(tsk);
+		if (cpu_has_fxsr) {
+			copy_fpu_fxsave(tsk, fpu);
+		} else {
+			copy_fpu_fsave(tsk, fpu);
+		}
+	}
+
+	return fpvalid;
+}
+EXPORT_SYMBOL(dump_fpu);
+
+int dump_task_fpu(struct task_struct *tsk, struct user_i387_struct *fpu)
+{
+	int fpvalid = !!tsk_used_math(tsk);
+
+	if (fpvalid) {
+		if (tsk == current)
+			unlazy_fpu(tsk);
+		if (cpu_has_fxsr)
+			copy_fpu_fxsave(tsk, fpu);
+		else
+			copy_fpu_fsave(tsk, fpu);
+	}
+	return fpvalid;
+}
+
+int dump_task_extended_fpu(struct task_struct *tsk,
+			   struct user_fxsr_struct *fpu)
+{
+	int fpvalid = tsk_used_math(tsk) && cpu_has_fxsr;
+
+	if (fpvalid) {
+		if (tsk == current)
+		       unlazy_fpu(tsk);
+		memcpy(fpu, &tsk->thread.i387.fxsave, sizeof(*fpu));
+	}
+	return fpvalid;
+}
diff --git a/arch/x86/kernel/i387_32.c b/arch/x86/kernel/i387_32.c
deleted file mode 100644
index bebe03463461..000000000000
--- a/arch/x86/kernel/i387_32.c
+++ /dev/null
@@ -1,551 +0,0 @@
-/*
- *  Copyright (C) 1994 Linus Torvalds
- *
- *  Pentium III FXSR, SSE support
- *  General FPU state handling cleanups
- *	Gareth Hughes <gareth@valinux.com>, May 2000
- */
-
-#include <linux/sched.h>
-#include <linux/module.h>
-#include <asm/processor.h>
-#include <asm/i387.h>
-#include <asm/math_emu.h>
-#include <asm/sigcontext.h>
-#include <asm/user.h>
-#include <asm/ptrace.h>
-#include <asm/uaccess.h>
-
-#ifdef CONFIG_MATH_EMULATION
-#define HAVE_HWFP (boot_cpu_data.hard_math)
-#else
-#define HAVE_HWFP 1
-#endif
-
-static unsigned long mxcsr_feature_mask __read_mostly = 0xffffffff;
-
-void mxcsr_feature_mask_init(void)
-{
-	unsigned long mask = 0;
-	clts();
-	if (cpu_has_fxsr) {
-		memset(&current->thread.i387.fxsave, 0,
-		       sizeof(struct i387_fxsave_struct));
-		asm volatile("fxsave %0" : : "m" (current->thread.i387.fxsave));
-		mask = current->thread.i387.fxsave.mxcsr_mask;
-		if (mask == 0)
-			mask = 0x0000ffbf;
-	}
-	mxcsr_feature_mask &= mask;
-	stts();
-}
-
-/*
- * The _current_ task is using the FPU for the first time
- * so initialize it and set the mxcsr to its default
- * value at reset if we support XMM instructions and then
- * remeber the current task has used the FPU.
- */
-void init_fpu(struct task_struct *tsk)
-{
-	if (cpu_has_fxsr) {
-		memset(&tsk->thread.i387.fxsave, 0,
-		       sizeof(struct i387_fxsave_struct));
-		tsk->thread.i387.fxsave.cwd = 0x37f;
-		if (cpu_has_xmm)
-			tsk->thread.i387.fxsave.mxcsr = 0x1f80;
-	} else {
-		memset(&tsk->thread.i387.fsave, 0,
-		       sizeof(struct i387_fsave_struct));
-		tsk->thread.i387.fsave.cwd = 0xffff037fu;
-		tsk->thread.i387.fsave.swd = 0xffff0000u;
-		tsk->thread.i387.fsave.twd = 0xffffffffu;
-		tsk->thread.i387.fsave.fos = 0xffff0000u;
-	}
-	/* only the device not available exception
-	 * or ptrace can call init_fpu */
-	set_stopped_child_used_math(tsk);
-}
-
-/*
- * FPU lazy state save handling.
- */
-
-void kernel_fpu_begin(void)
-{
-	struct thread_info *thread = current_thread_info();
-
-	preempt_disable();
-	if (thread->status & TS_USEDFPU) {
-		__save_init_fpu(thread->task);
-		return;
-	}
-	clts();
-}
-EXPORT_SYMBOL_GPL(kernel_fpu_begin);
-
-/*
- * FPU tag word conversions.
- */
-
-static inline unsigned short twd_i387_to_fxsr(unsigned short twd)
-{
-	unsigned int tmp; /* to avoid 16 bit prefixes in the code */
-
-	/* Transform each pair of bits into 01 (valid) or 00 (empty) */
-	tmp = ~twd;
-	tmp = (tmp | (tmp >> 1)) & 0x5555; /* 0V0V0V0V0V0V0V0V */
-	/* and move the valid bits to the lower byte. */
-	tmp = (tmp | (tmp >> 1)) & 0x3333; /* 00VV00VV00VV00VV */
-	tmp = (tmp | (tmp >> 2)) & 0x0f0f; /* 0000VVVV0000VVVV */
-	tmp = (tmp | (tmp >> 4)) & 0x00ff; /* 00000000VVVVVVVV */
-
-	return tmp;
-}
-
-static inline unsigned long twd_fxsr_to_i387(struct i387_fxsave_struct *fxsave)
-{
-	struct _fpxreg *st = NULL;
-	unsigned long tos = (fxsave->swd >> 11) & 7;
-	unsigned long twd = (unsigned long) fxsave->twd;
-	unsigned long tag;
-	unsigned long ret = 0xffff0000u;
-	int i;
-
-#define FPREG_ADDR(f, n)	((void *)&(f)->st_space + (n) * 16);
-
-	for (i = 0; i < 8; i++) {
-		if (twd & 0x1) {
-			st = FPREG_ADDR(fxsave, (i - tos) & 7);
-
-			switch (st->exponent & 0x7fff) {
-			case 0x7fff:
-				tag = 2;		/* Special */
-				break;
-			case 0x0000:
-				if (!st->significand[0] &&
-				    !st->significand[1] &&
-				    !st->significand[2] &&
-				    !st->significand[3]) {
-					tag = 1;	/* Zero */
-				} else {
-					tag = 2;	/* Special */
-				}
-				break;
-			default:
-				if (st->significand[3] & 0x8000) {
-					tag = 0;	/* Valid */
-				} else {
-					tag = 2;	/* Special */
-				}
-				break;
-			}
-		} else {
-			tag = 3;			/* Empty */
-		}
-		ret |= (tag << (2 * i));
-		twd = twd >> 1;
-	}
-	return ret;
-}
-
-/*
- * FPU state interaction.
- */
-
-unsigned short get_fpu_cwd(struct task_struct *tsk)
-{
-	if (cpu_has_fxsr) {
-		return tsk->thread.i387.fxsave.cwd;
-	} else {
-		return (unsigned short)tsk->thread.i387.fsave.cwd;
-	}
-}
-
-unsigned short get_fpu_swd(struct task_struct *tsk)
-{
-	if (cpu_has_fxsr) {
-		return tsk->thread.i387.fxsave.swd;
-	} else {
-		return (unsigned short)tsk->thread.i387.fsave.swd;
-	}
-}
-
-#if 0
-unsigned short get_fpu_twd(struct task_struct *tsk)
-{
-	if (cpu_has_fxsr) {
-		return tsk->thread.i387.fxsave.twd;
-	} else {
-		return (unsigned short)tsk->thread.i387.fsave.twd;
-	}
-}
-#endif  /*  0  */
-
-unsigned short get_fpu_mxcsr(struct task_struct *tsk)
-{
-	if (cpu_has_xmm) {
-		return tsk->thread.i387.fxsave.mxcsr;
-	} else {
-		return 0x1f80;
-	}
-}
-
-#if 0
-
-void set_fpu_cwd(struct task_struct *tsk, unsigned short cwd)
-{
-	if (cpu_has_fxsr) {
-		tsk->thread.i387.fxsave.cwd = cwd;
-	} else {
-		tsk->thread.i387.fsave.cwd = ((long)cwd | 0xffff0000u);
-	}
-}
-
-void set_fpu_swd(struct task_struct *tsk, unsigned short swd)
-{
-	if (cpu_has_fxsr) {
-		tsk->thread.i387.fxsave.swd = swd;
-	} else {
-		tsk->thread.i387.fsave.swd = ((long)swd | 0xffff0000u);
-	}
-}
-
-void set_fpu_twd(struct task_struct *tsk, unsigned short twd)
-{
-	if (cpu_has_fxsr) {
-		tsk->thread.i387.fxsave.twd = twd_i387_to_fxsr(twd);
-	} else {
-		tsk->thread.i387.fsave.twd = ((long)twd | 0xffff0000u);
-	}
-}
-
-#endif  /*  0  */
-
-/*
- * FXSR floating point environment conversions.
- */
-
-static int convert_fxsr_to_user(struct _fpstate __user *buf,
-				struct i387_fxsave_struct *fxsave)
-{
-	unsigned long env[7];
-	struct _fpreg __user *to;
-	struct _fpxreg *from;
-	int i;
-
-	env[0] = (unsigned long)fxsave->cwd | 0xffff0000ul;
-	env[1] = (unsigned long)fxsave->swd | 0xffff0000ul;
-	env[2] = twd_fxsr_to_i387(fxsave);
-	env[3] = fxsave->fip;
-	env[4] = fxsave->fcs | ((unsigned long)fxsave->fop << 16);
-	env[5] = fxsave->foo;
-	env[6] = fxsave->fos;
-
-	if (__copy_to_user(buf, env, 7 * sizeof(unsigned long)))
-		return 1;
-
-	to = &buf->_st[0];
-	from = (struct _fpxreg *) &fxsave->st_space[0];
-	for (i = 0; i < 8; i++, to++, from++) {
-		unsigned long __user *t = (unsigned long __user *)to;
-		unsigned long *f = (unsigned long *)from;
-
-		if (__put_user(*f, t) ||
-		    __put_user(*(f + 1), t + 1) ||
-		    __put_user(from->exponent, &to->exponent))
-			return 1;
-	}
-	return 0;
-}
-
-static int convert_fxsr_from_user(struct i387_fxsave_struct *fxsave,
-				  struct _fpstate __user *buf)
-{
-	unsigned long env[7];
-	struct _fpxreg *to;
-	struct _fpreg __user *from;
-	int i;
-
-	if (__copy_from_user(env, buf, 7 * sizeof(long)))
-		return 1;
-
-	fxsave->cwd = (unsigned short)(env[0] & 0xffff);
-	fxsave->swd = (unsigned short)(env[1] & 0xffff);
-	fxsave->twd = twd_i387_to_fxsr((unsigned short)(env[2] & 0xffff));
-	fxsave->fip = env[3];
-	fxsave->fop = (unsigned short)((env[4] & 0xffff0000ul) >> 16);
-	fxsave->fcs = (env[4] & 0xffff);
-	fxsave->foo = env[5];
-	fxsave->fos = env[6];
-
-	to = (struct _fpxreg *) &fxsave->st_space[0];
-	from = &buf->_st[0];
-	for (i = 0; i < 8; i++, to++, from++) {
-		unsigned long *t = (unsigned long *)to;
-		unsigned long __user *f = (unsigned long __user *)from;
-
-		if (__get_user(*t, f) ||
-		    __get_user(*(t + 1), f + 1) ||
-		    __get_user(to->exponent, &from->exponent))
-			return 1;
-	}
-	return 0;
-}
-
-/*
- * Signal frame handlers.
- */
-
-static inline int save_i387_fsave(struct _fpstate __user *buf)
-{
-	struct task_struct *tsk = current;
-
-	unlazy_fpu(tsk);
-	tsk->thread.i387.fsave.status = tsk->thread.i387.fsave.swd;
-	if (__copy_to_user(buf, &tsk->thread.i387.fsave,
-			   sizeof(struct i387_fsave_struct)))
-		return -1;
-	return 1;
-}
-
-static int save_i387_fxsave(struct _fpstate __user *buf)
-{
-	struct task_struct *tsk = current;
-	int err = 0;
-
-	unlazy_fpu(tsk);
-
-	if (convert_fxsr_to_user(buf, &tsk->thread.i387.fxsave))
-		return -1;
-
-	err |= __put_user(tsk->thread.i387.fxsave.swd, &buf->status);
-	err |= __put_user(X86_FXSR_MAGIC, &buf->magic);
-	if (err)
-		return -1;
-
-	if (__copy_to_user(&buf->_fxsr_env[0], &tsk->thread.i387.fxsave,
-			   sizeof(struct i387_fxsave_struct)))
-		return -1;
-	return 1;
-}
-
-int save_i387(struct _fpstate __user *buf)
-{
-	if (!used_math())
-		return 0;
-
-	/* This will cause a "finit" to be triggered by the next
-	 * attempted FPU operation by the 'current' process.
-	 */
-	clear_used_math();
-
-	if (HAVE_HWFP) {
-		if (cpu_has_fxsr) {
-			return save_i387_fxsave(buf);
-		} else {
-			return save_i387_fsave(buf);
-		}
-	} else {
-		return save_i387_soft(&current->thread.i387.soft, buf);
-	}
-}
-
-static inline int restore_i387_fsave(struct _fpstate __user *buf)
-{
-	struct task_struct *tsk = current;
-	clear_fpu(tsk);
-	return __copy_from_user(&tsk->thread.i387.fsave, buf,
-				sizeof(struct i387_fsave_struct));
-}
-
-static int restore_i387_fxsave(struct _fpstate __user *buf)
-{
-	int err;
-	struct task_struct *tsk = current;
-	clear_fpu(tsk);
-	err = __copy_from_user(&tsk->thread.i387.fxsave, &buf->_fxsr_env[0],
-			       sizeof(struct i387_fxsave_struct));
-	/* mxcsr reserved bits must be masked to zero for security reasons */
-	tsk->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
-	return err ? 1 : convert_fxsr_from_user(&tsk->thread.i387.fxsave, buf);
-}
-
-int restore_i387(struct _fpstate __user *buf)
-{
-	int err;
-
-	if (HAVE_HWFP) {
-		if (cpu_has_fxsr) {
-			err = restore_i387_fxsave(buf);
-		} else {
-			err = restore_i387_fsave(buf);
-		}
-	} else {
-		err = restore_i387_soft(&current->thread.i387.soft, buf);
-	}
-	set_used_math();
-	return err;
-}
-
-/*
- * ptrace request handlers.
- */
-
-static inline int get_fpregs_fsave(struct user_i387_struct __user *buf,
-				   struct task_struct *tsk)
-{
-	return __copy_to_user(buf, &tsk->thread.i387.fsave,
-			      sizeof(struct user_i387_struct));
-}
-
-static inline int get_fpregs_fxsave(struct user_i387_struct __user *buf,
-				    struct task_struct *tsk)
-{
-	return convert_fxsr_to_user((struct _fpstate __user *)buf,
-				    &tsk->thread.i387.fxsave);
-}
-
-int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *tsk)
-{
-	if (HAVE_HWFP) {
-		if (cpu_has_fxsr) {
-			return get_fpregs_fxsave(buf, tsk);
-		} else {
-			return get_fpregs_fsave(buf, tsk);
-		}
-	} else {
-		return save_i387_soft(&tsk->thread.i387.soft,
-				      (struct _fpstate __user *)buf);
-	}
-}
-
-static inline int set_fpregs_fsave(struct task_struct *tsk,
-				   struct user_i387_struct __user *buf)
-{
-	return __copy_from_user(&tsk->thread.i387.fsave, buf,
-				sizeof(struct user_i387_struct));
-}
-
-static inline int set_fpregs_fxsave(struct task_struct *tsk,
-				    struct user_i387_struct __user *buf)
-{
-	return convert_fxsr_from_user(&tsk->thread.i387.fxsave,
-				      (struct _fpstate __user *)buf);
-}
-
-int set_fpregs(struct task_struct *tsk, struct user_i387_struct __user *buf)
-{
-	if (HAVE_HWFP) {
-		if (cpu_has_fxsr) {
-			return set_fpregs_fxsave(tsk, buf);
-		} else {
-			return set_fpregs_fsave(tsk, buf);
-		}
-	} else {
-		return restore_i387_soft(&tsk->thread.i387.soft,
-					 (struct _fpstate __user *)buf);
-	}
-}
-
-int get_fpxregs(struct user_fxsr_struct __user *buf, struct task_struct *tsk)
-{
-	if (cpu_has_fxsr) {
-		if (__copy_to_user(buf, &tsk->thread.i387.fxsave,
-				   sizeof(struct user_fxsr_struct)))
-			return -EFAULT;
-		return 0;
-	} else {
-		return -EIO;
-	}
-}
-
-int set_fpxregs(struct task_struct *tsk, struct user_fxsr_struct __user *buf)
-{
-	int ret = 0;
-
-	if (cpu_has_fxsr) {
-		if (__copy_from_user(&tsk->thread.i387.fxsave, buf,
-				     sizeof(struct user_fxsr_struct)))
-			ret = -EFAULT;
-		/* mxcsr reserved bits must be masked to zero
-		 * for security reasons */
-		tsk->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
-	} else {
-		ret = -EIO;
-	}
-	return ret;
-}
-
-/*
- * FPU state for core dumps.
- */
-
-static inline void copy_fpu_fsave(struct task_struct *tsk,
-				  struct user_i387_struct *fpu)
-{
-	memcpy(fpu, &tsk->thread.i387.fsave,
-	       sizeof(struct user_i387_struct));
-}
-
-static inline void copy_fpu_fxsave(struct task_struct *tsk,
-				   struct user_i387_struct *fpu)
-{
-	unsigned short *to;
-	unsigned short *from;
-	int i;
-
-	memcpy(fpu, &tsk->thread.i387.fxsave, 7 * sizeof(long));
-
-	to = (unsigned short *)&fpu->st_space[0];
-	from = (unsigned short *)&tsk->thread.i387.fxsave.st_space[0];
-	for (i = 0; i < 8; i++, to += 5, from += 8)
-		memcpy(to, from, 5 * sizeof(unsigned short));
-}
-
-int dump_fpu(struct pt_regs *regs, struct user_i387_struct *fpu)
-{
-	int fpvalid;
-	struct task_struct *tsk = current;
-
-	fpvalid = !!used_math();
-	if (fpvalid) {
-		unlazy_fpu(tsk);
-		if (cpu_has_fxsr) {
-			copy_fpu_fxsave(tsk, fpu);
-		} else {
-			copy_fpu_fsave(tsk, fpu);
-		}
-	}
-
-	return fpvalid;
-}
-EXPORT_SYMBOL(dump_fpu);
-
-int dump_task_fpu(struct task_struct *tsk, struct user_i387_struct *fpu)
-{
-	int fpvalid = !!tsk_used_math(tsk);
-
-	if (fpvalid) {
-		if (tsk == current)
-			unlazy_fpu(tsk);
-		if (cpu_has_fxsr)
-			copy_fpu_fxsave(tsk, fpu);
-		else
-			copy_fpu_fsave(tsk, fpu);
-	}
-	return fpvalid;
-}
-
-int dump_task_extended_fpu(struct task_struct *tsk,
-			   struct user_fxsr_struct *fpu)
-{
-	int fpvalid = tsk_used_math(tsk) && cpu_has_fxsr;
-
-	if (fpvalid) {
-		if (tsk == current)
-		       unlazy_fpu(tsk);
-		memcpy(fpu, &tsk->thread.i387.fxsave, sizeof(*fpu));
-	}
-	return fpvalid;
-}
-- 
cgit v1.2.3-59-g8ed1b


From 4421011120b2304e5c248ae4165a2704588aedf1 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:50 +0100
Subject: x86: x86 i387 user_regset

This revamps the i387 code to be shared across 32-bit, 64-bit,
and 32-on-64.  It does so by consolidating the code in one place
based on the user_regset accessor interfaces.  This switches
32-bit to using the i387_64.h header and 64-bit to using the
i387.c that was previously i387_32.c, but that's what took the
least cleanup in each file.  Here i387.h is stubbed to always
include i387_64.h rather than renaming the file, to keep this
diff smaller and easier to read.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/Makefile      |   2 +-
 arch/x86/ia32/ia32_signal.c |   5 +-
 arch/x86/kernel/Makefile_64 |   3 +-
 arch/x86/kernel/i387.c      | 481 +++++++++++++++++++++++---------------------
 arch/x86/kernel/ptrace.c    |   1 -
 include/asm-x86/fpu32.h     |  10 -
 include/asm-x86/i387.h      |   6 +-
 include/asm-x86/i387_64.h   |  11 +
 8 files changed, 265 insertions(+), 254 deletions(-)
 delete mode 100644 include/asm-x86/fpu32.h

(limited to 'arch')

diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index ec71cfeac87e..93a6fda65f49 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -3,7 +3,7 @@
 #
 
 obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o \
-	ia32_binfmt.o fpu32.o
+	ia32_binfmt.o
 
 sysv-$(CONFIG_SYSVIPC) := ipc32.o
 obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 0e24e3fda3d7..0a34c24f19e5 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -29,7 +29,6 @@
 #include <asm/ia32_unistd.h>
 #include <asm/user32.h>
 #include <asm/sigcontext32.h>
-#include <asm/fpu32.h>
 #include <asm/proto.h>
 #include <asm/vdso.h>
 
@@ -258,7 +257,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
 	if (buf) {
 		if (!access_ok(VERIFY_READ, buf, sizeof(*buf)))
 			goto badframe;
-		err |= restore_i387_ia32(current, buf, 0);
+		err |= restore_i387_ia32(buf);
 	} else {
 		struct task_struct *me = current;
 
@@ -377,7 +376,7 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
 	err |= __put_user((u32)regs->flags, &sc->flags);
 	err |= __put_user((u32)regs->sp, &sc->sp_at_signal);
 
-	tmp = save_i387_ia32(current, fpstate, regs, 0);
+	tmp = save_i387_ia32(fpstate);
 	if (tmp < 0)
 		err = -EFAULT;
 	else {
diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index fbb370071239..7fcf972aa5d6 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -7,7 +7,7 @@ CPPFLAGS_vmlinux.lds += -Ux86_64
 
 obj-y	:= process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
 		time_64.o ioport_64.o ldt.o setup_64.o i8259_64.o sys_x86_64.o \
-		x8664_ksyms_64.o i387_64.o syscall_64.o vsyscall_64.o \
+		x8664_ksyms_64.o syscall_64.o vsyscall_64.o \
 		setup64.o bootflag.o e820_64.o reboot_64.o quirks.o i8237.o \
 		pci-dma_64.o pci-nommu_64.o alternative.o hpet.o tsc_64.o bugs_64.o \
 		i8253.o io_delay.o rtc.o
@@ -16,6 +16,7 @@ obj-y				+= ptrace.o
 obj-y				+= ds.o
 obj-y				+= step.o
 
+obj-y				+= i387.o
 obj-$(CONFIG_IA32_EMULATION)	+= tls.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-y				+= cpu/
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index bebe03463461..f7f7568dd7bc 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -8,6 +8,7 @@
 
 #include <linux/sched.h>
 #include <linux/module.h>
+#include <linux/regset.h>
 #include <asm/processor.h>
 #include <asm/i387.h>
 #include <asm/math_emu.h>
@@ -16,13 +17,29 @@
 #include <asm/ptrace.h>
 #include <asm/uaccess.h>
 
+#ifdef CONFIG_X86_64
+
+#include <asm/sigcontext32.h>
+#include <asm/user32.h>
+
+#else
+
+#define	save_i387_ia32		save_i387
+#define	restore_i387_ia32	restore_i387
+
+#define _fpstate_ia32 		_fpstate
+#define user_i387_ia32_struct	user_i387_struct
+#define user32_fxsr_struct	user_fxsr_struct
+
+#endif
+
 #ifdef CONFIG_MATH_EMULATION
 #define HAVE_HWFP (boot_cpu_data.hard_math)
 #else
 #define HAVE_HWFP 1
 #endif
 
-static unsigned long mxcsr_feature_mask __read_mostly = 0xffffffff;
+unsigned int mxcsr_feature_mask __read_mostly = 0xffffffffu;
 
 void mxcsr_feature_mask_init(void)
 {
@@ -40,6 +57,30 @@ void mxcsr_feature_mask_init(void)
 	stts();
 }
 
+#ifdef CONFIG_X86_64
+/*
+ * Called at bootup to set up the initial FPU state that is later cloned
+ * into all processes.
+ */
+void __cpuinit fpu_init(void)
+{
+	unsigned long oldcr0 = read_cr0();
+	extern void __bad_fxsave_alignment(void);
+
+	if (offsetof(struct task_struct, thread.i387.fxsave) & 15)
+		__bad_fxsave_alignment();
+	set_in_cr4(X86_CR4_OSFXSR);
+	set_in_cr4(X86_CR4_OSXMMEXCPT);
+
+	write_cr0(oldcr0 & ~((1UL<<3)|(1UL<<2))); /* clear TS and EM */
+
+	mxcsr_feature_mask_init();
+	/* clean state in init */
+	current_thread_info()->status = 0;
+	clear_used_math();
+}
+#endif	/* CONFIG_X86_64 */
+
 /*
  * The _current_ task is using the FPU for the first time
  * so initialize it and set the mxcsr to its default
@@ -48,12 +89,18 @@ void mxcsr_feature_mask_init(void)
  */
 void init_fpu(struct task_struct *tsk)
 {
+	if (tsk_used_math(tsk)) {
+		if (tsk == current)
+			unlazy_fpu(tsk);
+		return;
+	}
+
 	if (cpu_has_fxsr) {
 		memset(&tsk->thread.i387.fxsave, 0,
 		       sizeof(struct i387_fxsave_struct));
 		tsk->thread.i387.fxsave.cwd = 0x37f;
 		if (cpu_has_xmm)
-			tsk->thread.i387.fxsave.mxcsr = 0x1f80;
+			tsk->thread.i387.fxsave.mxcsr = MXCSR_DEFAULT;
 	} else {
 		memset(&tsk->thread.i387.fsave, 0,
 		       sizeof(struct i387_fsave_struct));
@@ -62,27 +109,59 @@ void init_fpu(struct task_struct *tsk)
 		tsk->thread.i387.fsave.twd = 0xffffffffu;
 		tsk->thread.i387.fsave.fos = 0xffff0000u;
 	}
-	/* only the device not available exception
-	 * or ptrace can call init_fpu */
+	/*
+	 * Only the device not available exception or ptrace can call init_fpu.
+	 */
 	set_stopped_child_used_math(tsk);
 }
 
-/*
- * FPU lazy state save handling.
- */
+int fpregs_active(struct task_struct *target, const struct user_regset *regset)
+{
+	return tsk_used_math(target) ? regset->n : 0;
+}
 
-void kernel_fpu_begin(void)
+int xfpregs_active(struct task_struct *target, const struct user_regset *regset)
 {
-	struct thread_info *thread = current_thread_info();
+	return (cpu_has_fxsr && tsk_used_math(target)) ? regset->n : 0;
+}
 
-	preempt_disable();
-	if (thread->status & TS_USEDFPU) {
-		__save_init_fpu(thread->task);
-		return;
-	}
-	clts();
+int xfpregs_get(struct task_struct *target, const struct user_regset *regset,
+		unsigned int pos, unsigned int count,
+		void *kbuf, void __user *ubuf)
+{
+	if (!cpu_has_fxsr)
+		return -ENODEV;
+
+	unlazy_fpu(target);
+
+	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+				   &target->thread.i387.fxsave, 0, -1);
 }
-EXPORT_SYMBOL_GPL(kernel_fpu_begin);
+
+int xfpregs_set(struct task_struct *target, const struct user_regset *regset,
+		unsigned int pos, unsigned int count,
+		const void *kbuf, const void __user *ubuf)
+{
+	int ret;
+
+	if (!cpu_has_fxsr)
+		return -ENODEV;
+
+	unlazy_fpu(target);
+	set_stopped_child_used_math(target);
+
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				 &target->thread.i387.fxsave, 0, -1);
+
+	/*
+	 * mxcsr reserved bits must be masked to zero for security reasons.
+	 */
+	target->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
+
+	return ret;
+}
+
+#if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
 
 /*
  * FPU tag word conversions.
@@ -94,210 +173,187 @@ static inline unsigned short twd_i387_to_fxsr(unsigned short twd)
 
 	/* Transform each pair of bits into 01 (valid) or 00 (empty) */
 	tmp = ~twd;
-	tmp = (tmp | (tmp >> 1)) & 0x5555; /* 0V0V0V0V0V0V0V0V */
+	tmp = (tmp | (tmp>>1)) & 0x5555; /* 0V0V0V0V0V0V0V0V */
 	/* and move the valid bits to the lower byte. */
 	tmp = (tmp | (tmp >> 1)) & 0x3333; /* 00VV00VV00VV00VV */
 	tmp = (tmp | (tmp >> 2)) & 0x0f0f; /* 0000VVVV0000VVVV */
 	tmp = (tmp | (tmp >> 4)) & 0x00ff; /* 00000000VVVVVVVV */
-
 	return tmp;
 }
 
-static inline unsigned long twd_fxsr_to_i387(struct i387_fxsave_struct *fxsave)
-{
-	struct _fpxreg *st = NULL;
-	unsigned long tos = (fxsave->swd >> 11) & 7;
-	unsigned long twd = (unsigned long) fxsave->twd;
-	unsigned long tag;
-	unsigned long ret = 0xffff0000u;
-	int i;
-
 #define FPREG_ADDR(f, n)	((void *)&(f)->st_space + (n) * 16);
+#define FP_EXP_TAG_VALID	0
+#define FP_EXP_TAG_ZERO		1
+#define FP_EXP_TAG_SPECIAL	2
+#define FP_EXP_TAG_EMPTY	3
+
+static inline u32 twd_fxsr_to_i387(struct i387_fxsave_struct *fxsave)
+{
+	struct _fpxreg *st;
+	u32 tos = (fxsave->swd >> 11) & 7;
+	u32 twd = (unsigned long) fxsave->twd;
+	u32 tag;
+	u32 ret = 0xffff0000u;
+	int i;
 
-	for (i = 0; i < 8; i++) {
+	for (i = 0; i < 8; i++, twd >>= 1) {
 		if (twd & 0x1) {
 			st = FPREG_ADDR(fxsave, (i - tos) & 7);
 
 			switch (st->exponent & 0x7fff) {
 			case 0x7fff:
-				tag = 2;		/* Special */
+				tag = FP_EXP_TAG_SPECIAL;
 				break;
 			case 0x0000:
 				if (!st->significand[0] &&
 				    !st->significand[1] &&
 				    !st->significand[2] &&
-				    !st->significand[3]) {
-					tag = 1;	/* Zero */
-				} else {
-					tag = 2;	/* Special */
-				}
+				    !st->significand[3])
+					tag = FP_EXP_TAG_ZERO;
+				else
+					tag = FP_EXP_TAG_SPECIAL;
 				break;
 			default:
-				if (st->significand[3] & 0x8000) {
-					tag = 0;	/* Valid */
-				} else {
-					tag = 2;	/* Special */
-				}
+				if (st->significand[3] & 0x8000)
+					tag = FP_EXP_TAG_VALID;
+				else
+					tag = FP_EXP_TAG_SPECIAL;
 				break;
 			}
 		} else {
-			tag = 3;			/* Empty */
+			tag = FP_EXP_TAG_EMPTY;
 		}
-		ret |= (tag << (2 * i));
-		twd = twd >> 1;
+		ret |= tag << (2 * i);
 	}
 	return ret;
 }
 
 /*
- * FPU state interaction.
+ * FXSR floating point environment conversions.
  */
 
-unsigned short get_fpu_cwd(struct task_struct *tsk)
+static void convert_from_fxsr(struct user_i387_ia32_struct *env,
+			      struct task_struct *tsk)
 {
-	if (cpu_has_fxsr) {
-		return tsk->thread.i387.fxsave.cwd;
-	} else {
-		return (unsigned short)tsk->thread.i387.fsave.cwd;
-	}
-}
+	struct i387_fxsave_struct *fxsave = &tsk->thread.i387.fxsave;
+	struct _fpreg *to = (struct _fpreg *) &env->st_space[0];
+	struct _fpxreg *from = (struct _fpxreg *) &fxsave->st_space[0];
+	int i;
 
-unsigned short get_fpu_swd(struct task_struct *tsk)
-{
-	if (cpu_has_fxsr) {
-		return tsk->thread.i387.fxsave.swd;
+	env->cwd = fxsave->cwd | 0xffff0000u;
+	env->swd = fxsave->swd | 0xffff0000u;
+	env->twd = twd_fxsr_to_i387(fxsave);
+
+#ifdef CONFIG_X86_64
+	env->fip = fxsave->rip;
+	env->foo = fxsave->rdp;
+	if (tsk == current) {
+		/*
+		 * should be actually ds/cs at fpu exception time, but
+		 * that information is not available in 64bit mode.
+		 */
+		asm("mov %%ds,%0" : "=r" (env->fos));
+		asm("mov %%cs,%0" : "=r" (env->fcs));
 	} else {
-		return (unsigned short)tsk->thread.i387.fsave.swd;
+		struct pt_regs *regs = task_pt_regs(tsk);
+		env->fos = 0xffff0000 | tsk->thread.ds;
+		env->fcs = regs->cs;
 	}
-}
-
-#if 0
-unsigned short get_fpu_twd(struct task_struct *tsk)
-{
-	if (cpu_has_fxsr) {
-		return tsk->thread.i387.fxsave.twd;
-	} else {
-		return (unsigned short)tsk->thread.i387.fsave.twd;
-	}
-}
-#endif  /*  0  */
+#else
+	env->fip = fxsave->fip;
+	env->fcs = fxsave->fcs;
+	env->foo = fxsave->foo;
+	env->fos = fxsave->fos;
+#endif
 
-unsigned short get_fpu_mxcsr(struct task_struct *tsk)
-{
-	if (cpu_has_xmm) {
-		return tsk->thread.i387.fxsave.mxcsr;
-	} else {
-		return 0x1f80;
-	}
+	for (i = 0; i < 8; ++i)
+		memcpy(&to[i], &from[i], sizeof(to[0]));
 }
 
-#if 0
+static void convert_to_fxsr(struct task_struct *tsk,
+			    const struct user_i387_ia32_struct *env)
 
-void set_fpu_cwd(struct task_struct *tsk, unsigned short cwd)
 {
-	if (cpu_has_fxsr) {
-		tsk->thread.i387.fxsave.cwd = cwd;
-	} else {
-		tsk->thread.i387.fsave.cwd = ((long)cwd | 0xffff0000u);
-	}
-}
+	struct i387_fxsave_struct *fxsave = &tsk->thread.i387.fxsave;
+	struct _fpreg *from = (struct _fpreg *) &env->st_space[0];
+	struct _fpxreg *to = (struct _fpxreg *) &fxsave->st_space[0];
+	int i;
 
-void set_fpu_swd(struct task_struct *tsk, unsigned short swd)
-{
-	if (cpu_has_fxsr) {
-		tsk->thread.i387.fxsave.swd = swd;
-	} else {
-		tsk->thread.i387.fsave.swd = ((long)swd | 0xffff0000u);
-	}
-}
+	fxsave->cwd = env->cwd;
+	fxsave->swd = env->swd;
+	fxsave->twd = twd_i387_to_fxsr(env->twd);
+	fxsave->fop = (u16) ((u32) env->fcs >> 16);
+#ifdef CONFIG_X86_64
+	fxsave->rip = env->fip;
+	fxsave->rdp = env->foo;
+	/* cs and ds ignored */
+#else
+	fxsave->fip = env->fip;
+	fxsave->fcs = (env->fcs & 0xffff);
+	fxsave->foo = env->foo;
+	fxsave->fos = env->fos;
+#endif
 
-void set_fpu_twd(struct task_struct *tsk, unsigned short twd)
-{
-	if (cpu_has_fxsr) {
-		tsk->thread.i387.fxsave.twd = twd_i387_to_fxsr(twd);
-	} else {
-		tsk->thread.i387.fsave.twd = ((long)twd | 0xffff0000u);
-	}
+	for (i = 0; i < 8; ++i)
+		memcpy(&to[i], &from[i], sizeof(from[0]));
 }
 
-#endif  /*  0  */
-
-/*
- * FXSR floating point environment conversions.
- */
-
-static int convert_fxsr_to_user(struct _fpstate __user *buf,
-				struct i387_fxsave_struct *fxsave)
+int fpregs_get(struct task_struct *target, const struct user_regset *regset,
+	       unsigned int pos, unsigned int count,
+	       void *kbuf, void __user *ubuf)
 {
-	unsigned long env[7];
-	struct _fpreg __user *to;
-	struct _fpxreg *from;
-	int i;
+	struct user_i387_ia32_struct env;
 
-	env[0] = (unsigned long)fxsave->cwd | 0xffff0000ul;
-	env[1] = (unsigned long)fxsave->swd | 0xffff0000ul;
-	env[2] = twd_fxsr_to_i387(fxsave);
-	env[3] = fxsave->fip;
-	env[4] = fxsave->fcs | ((unsigned long)fxsave->fop << 16);
-	env[5] = fxsave->foo;
-	env[6] = fxsave->fos;
+	if (!HAVE_HWFP)
+		return fpregs_soft_get(target, regset, pos, count, kbuf, ubuf);
 
-	if (__copy_to_user(buf, env, 7 * sizeof(unsigned long)))
-		return 1;
+	unlazy_fpu(target);
 
-	to = &buf->_st[0];
-	from = (struct _fpxreg *) &fxsave->st_space[0];
-	for (i = 0; i < 8; i++, to++, from++) {
-		unsigned long __user *t = (unsigned long __user *)to;
-		unsigned long *f = (unsigned long *)from;
+	if (!cpu_has_fxsr)
+		return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+					   &target->thread.i387.fsave, 0, -1);
 
-		if (__put_user(*f, t) ||
-		    __put_user(*(f + 1), t + 1) ||
-		    __put_user(from->exponent, &to->exponent))
-			return 1;
+	if (kbuf && pos == 0 && count == sizeof(env)) {
+		convert_from_fxsr(kbuf, target);
+		return 0;
 	}
-	return 0;
+
+	convert_from_fxsr(&env, target);
+	return user_regset_copyout(&pos, &count, &kbuf, &ubuf, &env, 0, -1);
 }
 
-static int convert_fxsr_from_user(struct i387_fxsave_struct *fxsave,
-				  struct _fpstate __user *buf)
+int fpregs_set(struct task_struct *target, const struct user_regset *regset,
+	       unsigned int pos, unsigned int count,
+	       const void *kbuf, const void __user *ubuf)
 {
-	unsigned long env[7];
-	struct _fpxreg *to;
-	struct _fpreg __user *from;
-	int i;
+	struct user_i387_ia32_struct env;
+	int ret;
 
-	if (__copy_from_user(env, buf, 7 * sizeof(long)))
-		return 1;
+	if (!HAVE_HWFP)
+		return fpregs_soft_set(target, regset, pos, count, kbuf, ubuf);
 
-	fxsave->cwd = (unsigned short)(env[0] & 0xffff);
-	fxsave->swd = (unsigned short)(env[1] & 0xffff);
-	fxsave->twd = twd_i387_to_fxsr((unsigned short)(env[2] & 0xffff));
-	fxsave->fip = env[3];
-	fxsave->fop = (unsigned short)((env[4] & 0xffff0000ul) >> 16);
-	fxsave->fcs = (env[4] & 0xffff);
-	fxsave->foo = env[5];
-	fxsave->fos = env[6];
-
-	to = (struct _fpxreg *) &fxsave->st_space[0];
-	from = &buf->_st[0];
-	for (i = 0; i < 8; i++, to++, from++) {
-		unsigned long *t = (unsigned long *)to;
-		unsigned long __user *f = (unsigned long __user *)from;
-
-		if (__get_user(*t, f) ||
-		    __get_user(*(t + 1), f + 1) ||
-		    __get_user(to->exponent, &from->exponent))
-			return 1;
-	}
-	return 0;
+	unlazy_fpu(target);
+	set_stopped_child_used_math(target);
+
+	if (!cpu_has_fxsr)
+		return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+					  &target->thread.i387.fsave, 0, -1);
+
+	if (pos > 0 || count < sizeof(env))
+		convert_from_fxsr(&env, target);
+
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &env, 0, -1);
+	if (!ret)
+		convert_to_fxsr(target, &env);
+
+	return ret;
 }
 
 /*
  * Signal frame handlers.
  */
 
-static inline int save_i387_fsave(struct _fpstate __user *buf)
+static inline int save_i387_fsave(struct _fpstate_ia32 __user *buf)
 {
 	struct task_struct *tsk = current;
 
@@ -309,14 +365,16 @@ static inline int save_i387_fsave(struct _fpstate __user *buf)
 	return 1;
 }
 
-static int save_i387_fxsave(struct _fpstate __user *buf)
+static int save_i387_fxsave(struct _fpstate_ia32 __user *buf)
 {
 	struct task_struct *tsk = current;
+	struct user_i387_ia32_struct env;
 	int err = 0;
 
 	unlazy_fpu(tsk);
 
-	if (convert_fxsr_to_user(buf, &tsk->thread.i387.fxsave))
+	convert_from_fxsr(&env, tsk);
+	if (__copy_to_user(buf, &env, sizeof(env)))
 		return -1;
 
 	err |= __put_user(tsk->thread.i387.fxsave.swd, &buf->status);
@@ -330,7 +388,7 @@ static int save_i387_fxsave(struct _fpstate __user *buf)
 	return 1;
 }
 
-int save_i387(struct _fpstate __user *buf)
+int save_i387_ia32(struct _fpstate_ia32 __user *buf)
 {
 	if (!used_math())
 		return 0;
@@ -347,11 +405,13 @@ int save_i387(struct _fpstate __user *buf)
 			return save_i387_fsave(buf);
 		}
 	} else {
-		return save_i387_soft(&current->thread.i387.soft, buf);
+		return fpregs_soft_get(current, NULL,
+				       0, sizeof(struct user_i387_ia32_struct),
+				       NULL, buf) ? -1 : 1;
 	}
 }
 
-static inline int restore_i387_fsave(struct _fpstate __user *buf)
+static inline int restore_i387_fsave(struct _fpstate_ia32 __user *buf)
 {
 	struct task_struct *tsk = current;
 	clear_fpu(tsk);
@@ -359,19 +419,23 @@ static inline int restore_i387_fsave(struct _fpstate __user *buf)
 				sizeof(struct i387_fsave_struct));
 }
 
-static int restore_i387_fxsave(struct _fpstate __user *buf)
+static int restore_i387_fxsave(struct _fpstate_ia32 __user *buf)
 {
 	int err;
 	struct task_struct *tsk = current;
+	struct user_i387_ia32_struct env;
 	clear_fpu(tsk);
 	err = __copy_from_user(&tsk->thread.i387.fxsave, &buf->_fxsr_env[0],
 			       sizeof(struct i387_fxsave_struct));
 	/* mxcsr reserved bits must be masked to zero for security reasons */
 	tsk->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
-	return err ? 1 : convert_fxsr_from_user(&tsk->thread.i387.fxsave, buf);
+	if (err || __copy_from_user(&env, buf, sizeof(env)))
+		return 1;
+	convert_to_fxsr(tsk, &env);
+	return 0;
 }
 
-int restore_i387(struct _fpstate __user *buf)
+int restore_i387_ia32(struct _fpstate_ia32 __user *buf)
 {
 	int err;
 
@@ -382,101 +446,52 @@ int restore_i387(struct _fpstate __user *buf)
 			err = restore_i387_fsave(buf);
 		}
 	} else {
-		err = restore_i387_soft(&current->thread.i387.soft, buf);
+		err = fpregs_soft_set(current, NULL,
+				      0, sizeof(struct user_i387_ia32_struct),
+				      NULL, buf) != 0;
 	}
 	set_used_math();
 	return err;
 }
 
-/*
- * ptrace request handlers.
- */
+#endif	/* CONFIG_X86_32 || CONFIG_IA32_EMULATION */
 
-static inline int get_fpregs_fsave(struct user_i387_struct __user *buf,
-				   struct task_struct *tsk)
-{
-	return __copy_to_user(buf, &tsk->thread.i387.fsave,
-			      sizeof(struct user_i387_struct));
-}
-
-static inline int get_fpregs_fxsave(struct user_i387_struct __user *buf,
-				    struct task_struct *tsk)
-{
-	return convert_fxsr_to_user((struct _fpstate __user *)buf,
-				    &tsk->thread.i387.fxsave);
-}
+#ifdef CONFIG_X86_64
 
 int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *tsk)
 {
-	if (HAVE_HWFP) {
-		if (cpu_has_fxsr) {
-			return get_fpregs_fxsave(buf, tsk);
-		} else {
-			return get_fpregs_fsave(buf, tsk);
-		}
-	} else {
-		return save_i387_soft(&tsk->thread.i387.soft,
-				      (struct _fpstate __user *)buf);
-	}
+	return xfpregs_get(tsk, NULL, 0, sizeof(*buf), NULL, buf);
 }
 
-static inline int set_fpregs_fsave(struct task_struct *tsk,
-				   struct user_i387_struct __user *buf)
+int set_fpregs(struct task_struct *tsk, struct user_i387_struct __user *buf)
 {
-	return __copy_from_user(&tsk->thread.i387.fsave, buf,
-				sizeof(struct user_i387_struct));
+	return xfpregs_set(tsk, NULL, 0, sizeof(*buf), NULL, buf);
 }
 
-static inline int set_fpregs_fxsave(struct task_struct *tsk,
-				    struct user_i387_struct __user *buf)
+#else
+
+int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *tsk)
 {
-	return convert_fxsr_from_user(&tsk->thread.i387.fxsave,
-				      (struct _fpstate __user *)buf);
+	return fpregs_get(tsk, NULL, 0, sizeof(*buf), NULL, buf);
 }
 
 int set_fpregs(struct task_struct *tsk, struct user_i387_struct __user *buf)
 {
-	if (HAVE_HWFP) {
-		if (cpu_has_fxsr) {
-			return set_fpregs_fxsave(tsk, buf);
-		} else {
-			return set_fpregs_fsave(tsk, buf);
-		}
-	} else {
-		return restore_i387_soft(&tsk->thread.i387.soft,
-					 (struct _fpstate __user *)buf);
-	}
+	return fpregs_set(tsk, NULL, 0, sizeof(*buf), NULL, buf);
 }
 
 int get_fpxregs(struct user_fxsr_struct __user *buf, struct task_struct *tsk)
 {
-	if (cpu_has_fxsr) {
-		if (__copy_to_user(buf, &tsk->thread.i387.fxsave,
-				   sizeof(struct user_fxsr_struct)))
-			return -EFAULT;
-		return 0;
-	} else {
-		return -EIO;
-	}
+	return xfpregs_get(tsk, NULL, 0, sizeof(*buf), NULL, buf);
 }
 
 int set_fpxregs(struct task_struct *tsk, struct user_fxsr_struct __user *buf)
 {
-	int ret = 0;
-
-	if (cpu_has_fxsr) {
-		if (__copy_from_user(&tsk->thread.i387.fxsave, buf,
-				     sizeof(struct user_fxsr_struct)))
-			ret = -EFAULT;
-		/* mxcsr reserved bits must be masked to zero
-		 * for security reasons */
-		tsk->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
-	} else {
-		ret = -EIO;
-	}
-	return ret;
+	return xfpregs_get(tsk, NULL, 0, sizeof(*buf), NULL, buf);
 }
 
+#endif
+
 /*
  * FPU state for core dumps.
  */
@@ -538,7 +553,7 @@ int dump_task_fpu(struct task_struct *tsk, struct user_i387_struct *fpu)
 }
 
 int dump_task_extended_fpu(struct task_struct *tsk,
-			   struct user_fxsr_struct *fpu)
+			   struct user32_fxsr_struct *fpu)
 {
 	int fpvalid = tsk_used_math(tsk) && cpu_has_fxsr;
 
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 18972a305890..084805ab7323 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -886,7 +886,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 #include <linux/compat.h>
 #include <linux/syscalls.h>
 #include <asm/ia32.h>
-#include <asm/fpu32.h>
 #include <asm/user32.h>
 
 #define R32(l,q)							\
diff --git a/include/asm-x86/fpu32.h b/include/asm-x86/fpu32.h
deleted file mode 100644
index 4153db5c0c31..000000000000
--- a/include/asm-x86/fpu32.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _FPU32_H
-#define _FPU32_H 1
-
-struct _fpstate_ia32;
-
-int restore_i387_ia32(struct task_struct *tsk, struct _fpstate_ia32 __user *buf, int fsave);
-int save_i387_ia32(struct task_struct *tsk, struct _fpstate_ia32 __user *buf, 
-		   struct pt_regs *regs, int fsave);
-
-#endif
diff --git a/include/asm-x86/i387.h b/include/asm-x86/i387.h
index a8bbed349664..b2bc0050ce99 100644
--- a/include/asm-x86/i387.h
+++ b/include/asm-x86/i387.h
@@ -1,5 +1 @@
-#ifdef CONFIG_X86_32
-# include "i387_32.h"
-#else
-# include "i387_64.h"
-#endif
+#include "i387_64.h"
diff --git a/include/asm-x86/i387_64.h b/include/asm-x86/i387_64.h
index 4cea7373ac78..de435b9114df 100644
--- a/include/asm-x86/i387_64.h
+++ b/include/asm-x86/i387_64.h
@@ -12,6 +12,7 @@
 
 #include <linux/sched.h>
 #include <linux/kernel_stat.h>
+#include <linux/regset.h>
 #include <asm/processor.h>
 #include <asm/sigcontext.h>
 #include <asm/user.h>
@@ -23,6 +24,16 @@ extern void mxcsr_feature_mask_init(void);
 extern void init_fpu(struct task_struct *child);
 extern asmlinkage void math_state_restore(void);
 
+extern user_regset_active_fn fpregs_active, xfpregs_active;
+extern user_regset_get_fn fpregs_get, xfpregs_get, fpregs_soft_get;
+extern user_regset_set_fn fpregs_set, xfpregs_set, fpregs_soft_set;
+
+#ifdef CONFIG_IA32_EMULATION
+struct _fpstate_ia32;
+extern int save_i387_ia32(struct _fpstate_ia32 __user *buf);
+extern int restore_i387_ia32(struct _fpstate_ia32 __user *buf);
+#endif
+
 #ifdef CONFIG_X86_64
 
 /* Ignore delayed exceptions from user space */
-- 
cgit v1.2.3-59-g8ed1b


From 1eeaed7679eab3666d2d8c964d060c2169b3813b Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:51 +0100
Subject: x86: x86 i387 cleanup

This removes all the old code that is no longer used after
the i387 unification and cleanup.  The i387_64.h is renamed
to i387.h with no changes, but since it replaces the nonempty
one-line stub i387.h it looks like a big diff and not a rename.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/fpu32.c     | 181 ----------------------
 arch/x86/kernel/i387_64.c | 119 ---------------
 include/asm-x86/i387.h    | 375 +++++++++++++++++++++++++++++++++++++++++++++-
 include/asm-x86/i387_32.h | 149 ------------------
 include/asm-x86/i387_64.h | 374 ---------------------------------------------
 5 files changed, 374 insertions(+), 824 deletions(-)
 delete mode 100644 arch/x86/ia32/fpu32.c
 delete mode 100644 arch/x86/kernel/i387_64.c
 delete mode 100644 include/asm-x86/i387_32.h
 delete mode 100644 include/asm-x86/i387_64.h

(limited to 'arch')

diff --git a/arch/x86/ia32/fpu32.c b/arch/x86/ia32/fpu32.c
deleted file mode 100644
index ae80745f668f..000000000000
--- a/arch/x86/ia32/fpu32.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * Copyright 2002 Andi Kleen, SuSE Labs.
- * FXSAVE<->i387 conversion support. Based on code by Gareth Hughes.
- * This is used for ptrace, signals and coredumps in 32bit emulation.
- */
-
-#include <linux/sched.h>
-#include <asm/sigcontext32.h>
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-#include <asm/i387.h>
-
-static inline unsigned short twd_i387_to_fxsr(unsigned short twd)
-{
-	unsigned int tmp; /* to avoid 16 bit prefixes in the code */
-
-	/* Transform each pair of bits into 01 (valid) or 00 (empty) */
-	tmp = ~twd;
-	tmp = (tmp | (tmp>>1)) & 0x5555; /* 0V0V0V0V0V0V0V0V */
-	/* and move the valid bits to the lower byte. */
-	tmp = (tmp | (tmp >> 1)) & 0x3333; /* 00VV00VV00VV00VV */
-	tmp = (tmp | (tmp >> 2)) & 0x0f0f; /* 0000VVVV0000VVVV */
-	tmp = (tmp | (tmp >> 4)) & 0x00ff; /* 00000000VVVVVVVV */
-	return tmp;
-}
-
-#define FPREG_ADDR(f, n)	((void *)&(f)->st_space + (n) * 16);
-#define FP_EXP_TAG_VALID	0
-#define FP_EXP_TAG_ZERO		1
-#define FP_EXP_TAG_SPECIAL	2
-#define FP_EXP_TAG_EMPTY	3
-
-static inline unsigned long twd_fxsr_to_i387(struct i387_fxsave_struct *fxsave)
-{
-	struct _fpxreg *st;
-	unsigned long tos = (fxsave->swd >> 11) & 7;
-	unsigned long twd = (unsigned long) fxsave->twd;
-	unsigned long tag;
-	unsigned long ret = 0xffff0000;
-	int i;
-
-	for (i = 0; i < 8; i++, twd >>= 1) {
-		if (twd & 0x1) {
-			st = FPREG_ADDR(fxsave, (i - tos) & 7);
-
-			switch (st->exponent & 0x7fff) {
-			case 0x7fff:
-				tag = FP_EXP_TAG_SPECIAL;
-				break;
-			case 0x0000:
-				if (!st->significand[0] &&
-				    !st->significand[1] &&
-				    !st->significand[2] &&
-				    !st->significand[3])
-					tag = FP_EXP_TAG_ZERO;
-				else
-					tag = FP_EXP_TAG_SPECIAL;
-				break;
-			default:
-				if (st->significand[3] & 0x8000)
-					tag = FP_EXP_TAG_VALID;
-				else
-					tag = FP_EXP_TAG_SPECIAL;
-				break;
-			}
-		} else {
-			tag = FP_EXP_TAG_EMPTY;
-		}
-		ret |= tag << (2 * i);
-	}
-	return ret;
-}
-
-#define G(num, val) err |= __get_user(val, num + (u32 __user *)buf)
-
-static inline int convert_fxsr_from_user(struct i387_fxsave_struct *fxsave,
-					 struct _fpstate_ia32 __user *buf)
-{
-	struct _fpxreg *to;
-	struct _fpreg __user *from;
-	int i, err = 0;
-	u32 v;
-
-	G(0, fxsave->cwd);
-	G(1, fxsave->swd);
-	G(2, fxsave->twd);
-	fxsave->twd = twd_i387_to_fxsr(fxsave->twd);
-	G(3, fxsave->rip);
-	G(4, v);
-	/* cs ignored */
-	fxsave->fop = v>>16;
-	G(5, fxsave->rdp);
-	/* 6: ds ignored */
-	if (err)
-		return -1;
-
-	to = (struct _fpxreg *)&fxsave->st_space[0];
-	from = &buf->_st[0];
-	for (i = 0; i < 8; i++, to++, from++) {
-		if (__copy_from_user(to, from, sizeof(*from)))
-			return -1;
-	}
-	return 0;
-}
-
-#define P(num, val) err |= __put_user(val, num + (u32 __user *)buf)
-
-static inline int convert_fxsr_to_user(struct _fpstate_ia32 __user *buf,
-				       struct i387_fxsave_struct *fxsave,
-				       struct pt_regs *regs,
-				       struct task_struct *tsk)
-{
-	struct _fpreg __user *to;
-	struct _fpxreg *from;
-	int i, err = 0;
-	u16 cs, ds;
-
-	if (tsk == current) {
-		/*
-		 * should be actually ds/cs at fpu exception time, but
-		 * that information is not available in 64bit mode.
-		 */
-		asm("movw %%ds,%0 " : "=r" (ds));
-		asm("movw %%cs,%0 " : "=r" (cs));
-	} else {
-		 /* ptrace. task has stopped. */
-		ds = tsk->thread.ds;
-		cs = regs->cs;
-	}
-
-	P(0, (u32)fxsave->cwd | 0xffff0000);
-	P(1, (u32)fxsave->swd | 0xffff0000);
-	P(2, twd_fxsr_to_i387(fxsave));
-	P(3, (u32)fxsave->rip);
-	P(4,  cs | ((u32)fxsave->fop) << 16);
-	P(5, fxsave->rdp);
-	P(6, 0xffff0000 | ds);
-
-	if (err)
-		return -1;
-
-	to = &buf->_st[0];
-	from = (struct _fpxreg *) &fxsave->st_space[0];
-	for (i = 0; i < 8; i++, to++, from++) {
-		if (__copy_to_user(to, from, sizeof(*to)))
-			return -1;
-	}
-	return 0;
-}
-
-int restore_i387_ia32(struct task_struct *tsk,
-		      struct _fpstate_ia32 __user *buf, int fsave)
-{
-	clear_fpu(tsk);
-	if (!fsave) {
-		if (__copy_from_user(&tsk->thread.i387.fxsave,
-				     &buf->_fxsr_env[0],
-				     sizeof(struct i387_fxsave_struct)))
-			return -1;
-		tsk->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
-		set_stopped_child_used_math(tsk);
-	}
-	return convert_fxsr_from_user(&tsk->thread.i387.fxsave, buf);
-}
-
-int save_i387_ia32(struct task_struct *tsk, struct _fpstate_ia32 __user *buf,
-		   struct pt_regs *regs, int fsave)
-{
-	int err = 0;
-
-	init_fpu(tsk);
-	if (convert_fxsr_to_user(buf, &tsk->thread.i387.fxsave, regs, tsk))
-		return -1;
-	if (fsave)
-		return 0;
-	err |= __put_user(tsk->thread.i387.fxsave.swd, &buf->status);
-	err |= __put_user(X86_FXSR_MAGIC, &buf->magic);
-	err |= __copy_to_user(&buf->_fxsr_env[0], &tsk->thread.i387.fxsave,
-			      sizeof(struct i387_fxsave_struct));
-	return err ? -1 : 1;
-}
diff --git a/arch/x86/kernel/i387_64.c b/arch/x86/kernel/i387_64.c
deleted file mode 100644
index f335a76d7ea7..000000000000
--- a/arch/x86/kernel/i387_64.c
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- *  Copyright (C) 1994 Linus Torvalds
- *  Copyright (C) 2002 Andi Kleen, SuSE Labs
- *
- *  Pentium III FXSR, SSE support
- *  General FPU state handling cleanups
- *	Gareth Hughes <gareth@valinux.com>, May 2000
- * 
- *  x86-64 rework 2002 Andi Kleen. 
- *  Does direct fxsave in and out of user space now for signal handlers.
- *  All the FSAVE<->FXSAVE conversion code has been moved to the 32bit emulation,
- *  the 64bit user space sees a FXSAVE frame directly. 
- */
-
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <asm/processor.h>
-#include <asm/i387.h>
-#include <asm/sigcontext.h>
-#include <asm/user.h>
-#include <asm/ptrace.h>
-#include <asm/uaccess.h>
-
-unsigned int mxcsr_feature_mask __read_mostly = 0xffffffff;
-
-void mxcsr_feature_mask_init(void)
-{
-	unsigned int mask;
-	clts();
-	memset(&current->thread.i387.fxsave, 0, sizeof(struct i387_fxsave_struct));
-	asm volatile("fxsave %0" : : "m" (current->thread.i387.fxsave));
-	mask = current->thread.i387.fxsave.mxcsr_mask;
-	if (mask == 0) mask = 0x0000ffbf;
-	mxcsr_feature_mask &= mask;
-	stts();
-}
-
-/*
- * Called at bootup to set up the initial FPU state that is later cloned
- * into all processes.
- */
-void __cpuinit fpu_init(void)
-{
-	unsigned long oldcr0 = read_cr0();
-	extern void __bad_fxsave_alignment(void);
-		
-	if (offsetof(struct task_struct, thread.i387.fxsave) & 15)
-		__bad_fxsave_alignment();
-	set_in_cr4(X86_CR4_OSFXSR);
-	set_in_cr4(X86_CR4_OSXMMEXCPT);
-
-	write_cr0(oldcr0 & ~((1UL<<3)|(1UL<<2))); /* clear TS and EM */
-
-	mxcsr_feature_mask_init();
-	/* clean state in init */
-	current_thread_info()->status = 0;
-	clear_used_math();
-}
-
-void init_fpu(struct task_struct *child)
-{
-	if (tsk_used_math(child)) {
-		if (child == current)
-			unlazy_fpu(child);
-		return;
-	}	
-	memset(&child->thread.i387.fxsave, 0, sizeof(struct i387_fxsave_struct));
-	child->thread.i387.fxsave.cwd = 0x37f;
-	child->thread.i387.fxsave.mxcsr = 0x1f80;
-	/* only the device not available exception or ptrace can call init_fpu */
-	set_stopped_child_used_math(child);
-}
-
-/*
- * ptrace request handlers.
- */
-
-int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *tsk)
-{
-	init_fpu(tsk);
-	return __copy_to_user(buf, &tsk->thread.i387.fxsave,
-			       sizeof(struct user_i387_struct)) ? -EFAULT : 0;
-}
-
-int set_fpregs(struct task_struct *tsk, struct user_i387_struct __user *buf)
-{
-	if (__copy_from_user(&tsk->thread.i387.fxsave, buf, 
-			     sizeof(struct user_i387_struct)))
-		return -EFAULT;
-		return 0;
-}
-
-/*
- * FPU state for core dumps.
- */
-
-int dump_fpu( struct pt_regs *regs, struct user_i387_struct *fpu )
-{
-	struct task_struct *tsk = current;
-
-	if (!used_math())
-		return 0;
-
-	unlazy_fpu(tsk);
-	memcpy(fpu, &tsk->thread.i387.fxsave, sizeof(struct user_i387_struct)); 
-	return 1; 
-}
-
-int dump_task_fpu(struct task_struct *tsk, struct user_i387_struct *fpu)
-{
-	int fpvalid = !!tsk_used_math(tsk);
-
-	if (fpvalid) {
-		if (tsk == current)
-			unlazy_fpu(tsk);
-		memcpy(fpu, &tsk->thread.i387.fxsave, sizeof(struct user_i387_struct)); 	
-}
-	return fpvalid;
-}
diff --git a/include/asm-x86/i387.h b/include/asm-x86/i387.h
index b2bc0050ce99..de435b9114df 100644
--- a/include/asm-x86/i387.h
+++ b/include/asm-x86/i387.h
@@ -1 +1,374 @@
-#include "i387_64.h"
+/*
+ * Copyright (C) 1994 Linus Torvalds
+ *
+ * Pentium III FXSR, SSE support
+ * General FPU state handling cleanups
+ *	Gareth Hughes <gareth@valinux.com>, May 2000
+ * x86-64 work by Andi Kleen 2002
+ */
+
+#ifndef _ASM_X86_I387_H
+#define _ASM_X86_I387_H
+
+#include <linux/sched.h>
+#include <linux/kernel_stat.h>
+#include <linux/regset.h>
+#include <asm/processor.h>
+#include <asm/sigcontext.h>
+#include <asm/user.h>
+#include <asm/uaccess.h>
+
+extern void fpu_init(void);
+extern unsigned int mxcsr_feature_mask;
+extern void mxcsr_feature_mask_init(void);
+extern void init_fpu(struct task_struct *child);
+extern asmlinkage void math_state_restore(void);
+
+extern user_regset_active_fn fpregs_active, xfpregs_active;
+extern user_regset_get_fn fpregs_get, xfpregs_get, fpregs_soft_get;
+extern user_regset_set_fn fpregs_set, xfpregs_set, fpregs_soft_set;
+
+#ifdef CONFIG_IA32_EMULATION
+struct _fpstate_ia32;
+extern int save_i387_ia32(struct _fpstate_ia32 __user *buf);
+extern int restore_i387_ia32(struct _fpstate_ia32 __user *buf);
+#endif
+
+#ifdef CONFIG_X86_64
+
+/* Ignore delayed exceptions from user space */
+static inline void tolerant_fwait(void)
+{
+	asm volatile("1: fwait\n"
+		     "2:\n"
+		     "   .section __ex_table,\"a\"\n"
+		     "	.align 8\n"
+		     "	.quad 1b,2b\n"
+		     "	.previous\n");
+}
+
+static inline int restore_fpu_checking(struct i387_fxsave_struct *fx)
+{
+	int err;
+
+	asm volatile("1:  rex64/fxrstor (%[fx])\n\t"
+		     "2:\n"
+		     ".section .fixup,\"ax\"\n"
+		     "3:  movl $-1,%[err]\n"
+		     "    jmp  2b\n"
+		     ".previous\n"
+		     ".section __ex_table,\"a\"\n"
+		     "   .align 8\n"
+		     "   .quad  1b,3b\n"
+		     ".previous"
+		     : [err] "=r" (err)
+#if 0 /* See comment in __save_init_fpu() below. */
+		     : [fx] "r" (fx), "m" (*fx), "0" (0));
+#else
+		     : [fx] "cdaSDb" (fx), "m" (*fx), "0" (0));
+#endif
+	if (unlikely(err))
+		init_fpu(current);
+	return err;
+}
+
+#define X87_FSW_ES (1 << 7)	/* Exception Summary */
+
+/* AMD CPUs don't save/restore FDP/FIP/FOP unless an exception
+   is pending. Clear the x87 state here by setting it to fixed
+   values. The kernel data segment can be sometimes 0 and sometimes
+   new user value. Both should be ok.
+   Use the PDA as safe address because it should be already in L1. */
+static inline void clear_fpu_state(struct i387_fxsave_struct *fx)
+{
+	if (unlikely(fx->swd & X87_FSW_ES))
+		 asm volatile("fnclex");
+	alternative_input(ASM_NOP8 ASM_NOP2,
+		     "    emms\n"		/* clear stack tags */
+		     "    fildl %%gs:0",	/* load to clear state */
+		     X86_FEATURE_FXSAVE_LEAK);
+}
+
+static inline int save_i387_checking(struct i387_fxsave_struct __user *fx)
+{
+	int err;
+
+	asm volatile("1:  rex64/fxsave (%[fx])\n\t"
+		     "2:\n"
+		     ".section .fixup,\"ax\"\n"
+		     "3:  movl $-1,%[err]\n"
+		     "    jmp  2b\n"
+		     ".previous\n"
+		     ".section __ex_table,\"a\"\n"
+		     "   .align 8\n"
+		     "   .quad  1b,3b\n"
+		     ".previous"
+		     : [err] "=r" (err), "=m" (*fx)
+#if 0 /* See comment in __fxsave_clear() below. */
+		     : [fx] "r" (fx), "0" (0));
+#else
+		     : [fx] "cdaSDb" (fx), "0" (0));
+#endif
+	if (unlikely(err) && __clear_user(fx, sizeof(struct i387_fxsave_struct)))
+		err = -EFAULT;
+	/* No need to clear here because the caller clears USED_MATH */
+	return err;
+}
+
+static inline void __save_init_fpu(struct task_struct *tsk)
+{
+	/* Using "rex64; fxsave %0" is broken because, if the memory operand
+	   uses any extended registers for addressing, a second REX prefix
+	   will be generated (to the assembler, rex64 followed by semicolon
+	   is a separate instruction), and hence the 64-bitness is lost. */
+#if 0
+	/* Using "fxsaveq %0" would be the ideal choice, but is only supported
+	   starting with gas 2.16. */
+	__asm__ __volatile__("fxsaveq %0"
+			     : "=m" (tsk->thread.i387.fxsave));
+#elif 0
+	/* Using, as a workaround, the properly prefixed form below isn't
+	   accepted by any binutils version so far released, complaining that
+	   the same type of prefix is used twice if an extended register is
+	   needed for addressing (fix submitted to mainline 2005-11-21). */
+	__asm__ __volatile__("rex64/fxsave %0"
+			     : "=m" (tsk->thread.i387.fxsave));
+#else
+	/* This, however, we can work around by forcing the compiler to select
+	   an addressing mode that doesn't require extended registers. */
+	__asm__ __volatile__("rex64/fxsave %P2(%1)"
+			     : "=m" (tsk->thread.i387.fxsave)
+			     : "cdaSDb" (tsk),
+				"i" (offsetof(__typeof__(*tsk),
+					      thread.i387.fxsave)));
+#endif
+	clear_fpu_state(&tsk->thread.i387.fxsave);
+	task_thread_info(tsk)->status &= ~TS_USEDFPU;
+}
+
+/*
+ * Signal frame handlers.
+ */
+
+static inline int save_i387(struct _fpstate __user *buf)
+{
+	struct task_struct *tsk = current;
+	int err = 0;
+
+	BUILD_BUG_ON(sizeof(struct user_i387_struct) !=
+			sizeof(tsk->thread.i387.fxsave));
+
+	if ((unsigned long)buf % 16)
+		printk("save_i387: bad fpstate %p\n", buf);
+
+	if (!used_math())
+		return 0;
+	clear_used_math(); /* trigger finit */
+	if (task_thread_info(tsk)->status & TS_USEDFPU) {
+		err = save_i387_checking((struct i387_fxsave_struct __user *)buf);
+		if (err) return err;
+		task_thread_info(tsk)->status &= ~TS_USEDFPU;
+		stts();
+	} else {
+		if (__copy_to_user(buf, &tsk->thread.i387.fxsave,
+				   sizeof(struct i387_fxsave_struct)))
+			return -1;
+	}
+	return 1;
+}
+
+/*
+ * This restores directly out of user space. Exceptions are handled.
+ */
+static inline int restore_i387(struct _fpstate __user *buf)
+{
+	set_used_math();
+	if (!(task_thread_info(current)->status & TS_USEDFPU)) {
+		clts();
+		task_thread_info(current)->status |= TS_USEDFPU;
+	}
+	return restore_fpu_checking((__force struct i387_fxsave_struct *)buf);
+}
+
+#else  /* CONFIG_X86_32 */
+
+static inline void tolerant_fwait(void)
+{
+	asm volatile("fnclex ; fwait");
+}
+
+static inline void restore_fpu(struct task_struct *tsk)
+{
+	/*
+	 * The "nop" is needed to make the instructions the same
+	 * length.
+	 */
+	alternative_input(
+		"nop ; frstor %1",
+		"fxrstor %1",
+		X86_FEATURE_FXSR,
+		"m" ((tsk)->thread.i387.fxsave));
+}
+
+/* We need a safe address that is cheap to find and that is already
+   in L1 during context switch. The best choices are unfortunately
+   different for UP and SMP */
+#ifdef CONFIG_SMP
+#define safe_address (__per_cpu_offset[0])
+#else
+#define safe_address (kstat_cpu(0).cpustat.user)
+#endif
+
+/*
+ * These must be called with preempt disabled
+ */
+static inline void __save_init_fpu(struct task_struct *tsk)
+{
+	/* Use more nops than strictly needed in case the compiler
+	   varies code */
+	alternative_input(
+		"fnsave %[fx] ;fwait;" GENERIC_NOP8 GENERIC_NOP4,
+		"fxsave %[fx]\n"
+		"bt $7,%[fsw] ; jnc 1f ; fnclex\n1:",
+		X86_FEATURE_FXSR,
+		[fx] "m" (tsk->thread.i387.fxsave),
+		[fsw] "m" (tsk->thread.i387.fxsave.swd) : "memory");
+	/* AMD K7/K8 CPUs don't save/restore FDP/FIP/FOP unless an exception
+	   is pending.  Clear the x87 state here by setting it to fixed
+	   values. safe_address is a random variable that should be in L1 */
+	alternative_input(
+		GENERIC_NOP8 GENERIC_NOP2,
+		"emms\n\t"	  	/* clear stack tags */
+		"fildl %[addr]", 	/* set F?P to defined value */
+		X86_FEATURE_FXSAVE_LEAK,
+		[addr] "m" (safe_address));
+	task_thread_info(tsk)->status &= ~TS_USEDFPU;
+}
+
+/*
+ * Signal frame handlers...
+ */
+extern int save_i387(struct _fpstate __user *buf);
+extern int restore_i387(struct _fpstate __user *buf);
+
+#endif	/* CONFIG_X86_64 */
+
+static inline void __unlazy_fpu(struct task_struct *tsk)
+{
+	if (task_thread_info(tsk)->status & TS_USEDFPU) {
+		__save_init_fpu(tsk);
+		stts();
+	} else
+		tsk->fpu_counter = 0;
+}
+
+static inline void __clear_fpu(struct task_struct *tsk)
+{
+	if (task_thread_info(tsk)->status & TS_USEDFPU) {
+		tolerant_fwait();
+		task_thread_info(tsk)->status &= ~TS_USEDFPU;
+		stts();
+	}
+}
+
+static inline void kernel_fpu_begin(void)
+{
+	struct thread_info *me = current_thread_info();
+	preempt_disable();
+	if (me->status & TS_USEDFPU)
+		__save_init_fpu(me->task);
+	else
+		clts();
+}
+
+static inline void kernel_fpu_end(void)
+{
+	stts();
+	preempt_enable();
+}
+
+#ifdef CONFIG_X86_64
+
+static inline void save_init_fpu(struct task_struct *tsk)
+{
+	__save_init_fpu(tsk);
+	stts();
+}
+
+#define unlazy_fpu	__unlazy_fpu
+#define clear_fpu	__clear_fpu
+
+#else  /* CONFIG_X86_32 */
+
+/*
+ * These disable preemption on their own and are safe
+ */
+static inline void save_init_fpu(struct task_struct *tsk)
+{
+	preempt_disable();
+	__save_init_fpu(tsk);
+	stts();
+	preempt_enable();
+}
+
+static inline void unlazy_fpu(struct task_struct *tsk)
+{
+	preempt_disable();
+	__unlazy_fpu(tsk);
+	preempt_enable();
+}
+
+static inline void clear_fpu(struct task_struct *tsk)
+{
+	preempt_disable();
+	__clear_fpu(tsk);
+	preempt_enable();
+}
+
+#endif	/* CONFIG_X86_64 */
+
+/*
+ * ptrace request handlers...
+ */
+extern int get_fpregs(struct user_i387_struct __user *buf,
+		      struct task_struct *tsk);
+extern int set_fpregs(struct task_struct *tsk,
+		      struct user_i387_struct __user *buf);
+
+struct user_fxsr_struct;
+extern int get_fpxregs(struct user_fxsr_struct __user *buf,
+		       struct task_struct *tsk);
+extern int set_fpxregs(struct task_struct *tsk,
+		       struct user_fxsr_struct __user *buf);
+
+/*
+ * i387 state interaction
+ */
+static inline unsigned short get_fpu_cwd(struct task_struct *tsk)
+{
+	if (cpu_has_fxsr) {
+		return tsk->thread.i387.fxsave.cwd;
+	} else {
+		return (unsigned short)tsk->thread.i387.fsave.cwd;
+	}
+}
+
+static inline unsigned short get_fpu_swd(struct task_struct *tsk)
+{
+	if (cpu_has_fxsr) {
+		return tsk->thread.i387.fxsave.swd;
+	} else {
+		return (unsigned short)tsk->thread.i387.fsave.swd;
+	}
+}
+
+static inline unsigned short get_fpu_mxcsr(struct task_struct *tsk)
+{
+	if (cpu_has_xmm) {
+		return tsk->thread.i387.fxsave.mxcsr;
+	} else {
+		return MXCSR_DEFAULT;
+	}
+}
+
+#endif	/* _ASM_X86_I387_H */
diff --git a/include/asm-x86/i387_32.h b/include/asm-x86/i387_32.h
deleted file mode 100644
index 9ac2502cdd3d..000000000000
--- a/include/asm-x86/i387_32.h
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Copyright (C) 1994 Linus Torvalds
- *
- * Pentium III FXSR, SSE support
- * General FPU state handling cleanups
- *	Gareth Hughes <gareth@valinux.com>, May 2000
- */
-
-#ifndef __ASM_I386_I387_H
-#define __ASM_I386_I387_H
-
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/kernel_stat.h>
-#include <asm/processor.h>
-#include <asm/sigcontext.h>
-#include <asm/user.h>
-
-extern void mxcsr_feature_mask_init(void);
-extern void init_fpu(struct task_struct *);
-
-/*
- * FPU lazy state save handling...
- */
-
-/*
- * The "nop" is needed to make the instructions the same
- * length.
- */
-#define restore_fpu(tsk)			\
-	alternative_input(			\
-		"nop ; frstor %1",		\
-		"fxrstor %1",			\
-		X86_FEATURE_FXSR,		\
-		"m" ((tsk)->thread.i387.fxsave))
-
-extern void kernel_fpu_begin(void);
-#define kernel_fpu_end() do { stts(); preempt_enable(); } while(0)
-
-/* We need a safe address that is cheap to find and that is already
-   in L1 during context switch. The best choices are unfortunately
-   different for UP and SMP */
-#ifdef CONFIG_SMP
-#define safe_address (__per_cpu_offset[0])
-#else
-#define safe_address (kstat_cpu(0).cpustat.user)
-#endif
-
-/*
- * These must be called with preempt disabled
- */
-static inline void __save_init_fpu( struct task_struct *tsk )
-{
-	/* Use more nops than strictly needed in case the compiler
-	   varies code */
-	alternative_input(
-		"fnsave %[fx] ;fwait;" GENERIC_NOP8 GENERIC_NOP4,
-		"fxsave %[fx]\n"
-		"bt $7,%[fsw] ; jnc 1f ; fnclex\n1:",
-		X86_FEATURE_FXSR,
-		[fx] "m" (tsk->thread.i387.fxsave),
-		[fsw] "m" (tsk->thread.i387.fxsave.swd) : "memory");
-	/* AMD K7/K8 CPUs don't save/restore FDP/FIP/FOP unless an exception
-	   is pending.  Clear the x87 state here by setting it to fixed
-   	   values. safe_address is a random variable that should be in L1 */
-	alternative_input(
-		GENERIC_NOP8 GENERIC_NOP2,
-		"emms\n\t"	  	/* clear stack tags */
-		"fildl %[addr]", 	/* set F?P to defined value */
-		X86_FEATURE_FXSAVE_LEAK,
-		[addr] "m" (safe_address));
-	task_thread_info(tsk)->status &= ~TS_USEDFPU;
-}
-
-#define __unlazy_fpu( tsk ) do {				\
-	if (task_thread_info(tsk)->status & TS_USEDFPU) {	\
-		__save_init_fpu(tsk);				\
-		stts();						\
-	} else							\
-		tsk->fpu_counter = 0;				\
-} while (0)
-
-#define __clear_fpu( tsk )					\
-do {								\
-	if (task_thread_info(tsk)->status & TS_USEDFPU) {	\
-		asm volatile("fnclex ; fwait");			\
-		task_thread_info(tsk)->status &= ~TS_USEDFPU;	\
-		stts();						\
-	}							\
-} while (0)
-
-
-/*
- * These disable preemption on their own and are safe
- */
-static inline void save_init_fpu( struct task_struct *tsk )
-{
-	preempt_disable();
-	__save_init_fpu(tsk);
-	stts();
-	preempt_enable();
-}
-
-#define unlazy_fpu( tsk ) do {	\
-	preempt_disable();	\
-	__unlazy_fpu(tsk);	\
-	preempt_enable();	\
-} while (0)
-
-#define clear_fpu( tsk ) do {	\
-	preempt_disable();	\
-	__clear_fpu( tsk );	\
-	preempt_enable();	\
-} while (0)
-
-/*
- * FPU state interaction...
- */
-extern unsigned short get_fpu_cwd( struct task_struct *tsk );
-extern unsigned short get_fpu_swd( struct task_struct *tsk );
-extern unsigned short get_fpu_mxcsr( struct task_struct *tsk );
-extern asmlinkage void math_state_restore(void);
-
-/*
- * Signal frame handlers...
- */
-extern int save_i387( struct _fpstate __user *buf );
-extern int restore_i387( struct _fpstate __user *buf );
-
-/*
- * ptrace request handers...
- */
-extern int get_fpregs( struct user_i387_struct __user *buf,
-		       struct task_struct *tsk );
-extern int set_fpregs( struct task_struct *tsk,
-		       struct user_i387_struct __user *buf );
-
-extern int get_fpxregs( struct user_fxsr_struct __user *buf,
-			struct task_struct *tsk );
-extern int set_fpxregs( struct task_struct *tsk,
-			struct user_fxsr_struct __user *buf );
-
-/*
- * FPU state for core dumps...
- */
-extern int dump_fpu( struct pt_regs *regs,
-		     struct user_i387_struct *fpu );
-
-#endif /* __ASM_I386_I387_H */
diff --git a/include/asm-x86/i387_64.h b/include/asm-x86/i387_64.h
deleted file mode 100644
index de435b9114df..000000000000
--- a/include/asm-x86/i387_64.h
+++ /dev/null
@@ -1,374 +0,0 @@
-/*
- * Copyright (C) 1994 Linus Torvalds
- *
- * Pentium III FXSR, SSE support
- * General FPU state handling cleanups
- *	Gareth Hughes <gareth@valinux.com>, May 2000
- * x86-64 work by Andi Kleen 2002
- */
-
-#ifndef _ASM_X86_I387_H
-#define _ASM_X86_I387_H
-
-#include <linux/sched.h>
-#include <linux/kernel_stat.h>
-#include <linux/regset.h>
-#include <asm/processor.h>
-#include <asm/sigcontext.h>
-#include <asm/user.h>
-#include <asm/uaccess.h>
-
-extern void fpu_init(void);
-extern unsigned int mxcsr_feature_mask;
-extern void mxcsr_feature_mask_init(void);
-extern void init_fpu(struct task_struct *child);
-extern asmlinkage void math_state_restore(void);
-
-extern user_regset_active_fn fpregs_active, xfpregs_active;
-extern user_regset_get_fn fpregs_get, xfpregs_get, fpregs_soft_get;
-extern user_regset_set_fn fpregs_set, xfpregs_set, fpregs_soft_set;
-
-#ifdef CONFIG_IA32_EMULATION
-struct _fpstate_ia32;
-extern int save_i387_ia32(struct _fpstate_ia32 __user *buf);
-extern int restore_i387_ia32(struct _fpstate_ia32 __user *buf);
-#endif
-
-#ifdef CONFIG_X86_64
-
-/* Ignore delayed exceptions from user space */
-static inline void tolerant_fwait(void)
-{
-	asm volatile("1: fwait\n"
-		     "2:\n"
-		     "   .section __ex_table,\"a\"\n"
-		     "	.align 8\n"
-		     "	.quad 1b,2b\n"
-		     "	.previous\n");
-}
-
-static inline int restore_fpu_checking(struct i387_fxsave_struct *fx)
-{
-	int err;
-
-	asm volatile("1:  rex64/fxrstor (%[fx])\n\t"
-		     "2:\n"
-		     ".section .fixup,\"ax\"\n"
-		     "3:  movl $-1,%[err]\n"
-		     "    jmp  2b\n"
-		     ".previous\n"
-		     ".section __ex_table,\"a\"\n"
-		     "   .align 8\n"
-		     "   .quad  1b,3b\n"
-		     ".previous"
-		     : [err] "=r" (err)
-#if 0 /* See comment in __save_init_fpu() below. */
-		     : [fx] "r" (fx), "m" (*fx), "0" (0));
-#else
-		     : [fx] "cdaSDb" (fx), "m" (*fx), "0" (0));
-#endif
-	if (unlikely(err))
-		init_fpu(current);
-	return err;
-}
-
-#define X87_FSW_ES (1 << 7)	/* Exception Summary */
-
-/* AMD CPUs don't save/restore FDP/FIP/FOP unless an exception
-   is pending. Clear the x87 state here by setting it to fixed
-   values. The kernel data segment can be sometimes 0 and sometimes
-   new user value. Both should be ok.
-   Use the PDA as safe address because it should be already in L1. */
-static inline void clear_fpu_state(struct i387_fxsave_struct *fx)
-{
-	if (unlikely(fx->swd & X87_FSW_ES))
-		 asm volatile("fnclex");
-	alternative_input(ASM_NOP8 ASM_NOP2,
-		     "    emms\n"		/* clear stack tags */
-		     "    fildl %%gs:0",	/* load to clear state */
-		     X86_FEATURE_FXSAVE_LEAK);
-}
-
-static inline int save_i387_checking(struct i387_fxsave_struct __user *fx)
-{
-	int err;
-
-	asm volatile("1:  rex64/fxsave (%[fx])\n\t"
-		     "2:\n"
-		     ".section .fixup,\"ax\"\n"
-		     "3:  movl $-1,%[err]\n"
-		     "    jmp  2b\n"
-		     ".previous\n"
-		     ".section __ex_table,\"a\"\n"
-		     "   .align 8\n"
-		     "   .quad  1b,3b\n"
-		     ".previous"
-		     : [err] "=r" (err), "=m" (*fx)
-#if 0 /* See comment in __fxsave_clear() below. */
-		     : [fx] "r" (fx), "0" (0));
-#else
-		     : [fx] "cdaSDb" (fx), "0" (0));
-#endif
-	if (unlikely(err) && __clear_user(fx, sizeof(struct i387_fxsave_struct)))
-		err = -EFAULT;
-	/* No need to clear here because the caller clears USED_MATH */
-	return err;
-}
-
-static inline void __save_init_fpu(struct task_struct *tsk)
-{
-	/* Using "rex64; fxsave %0" is broken because, if the memory operand
-	   uses any extended registers for addressing, a second REX prefix
-	   will be generated (to the assembler, rex64 followed by semicolon
-	   is a separate instruction), and hence the 64-bitness is lost. */
-#if 0
-	/* Using "fxsaveq %0" would be the ideal choice, but is only supported
-	   starting with gas 2.16. */
-	__asm__ __volatile__("fxsaveq %0"
-			     : "=m" (tsk->thread.i387.fxsave));
-#elif 0
-	/* Using, as a workaround, the properly prefixed form below isn't
-	   accepted by any binutils version so far released, complaining that
-	   the same type of prefix is used twice if an extended register is
-	   needed for addressing (fix submitted to mainline 2005-11-21). */
-	__asm__ __volatile__("rex64/fxsave %0"
-			     : "=m" (tsk->thread.i387.fxsave));
-#else
-	/* This, however, we can work around by forcing the compiler to select
-	   an addressing mode that doesn't require extended registers. */
-	__asm__ __volatile__("rex64/fxsave %P2(%1)"
-			     : "=m" (tsk->thread.i387.fxsave)
-			     : "cdaSDb" (tsk),
-				"i" (offsetof(__typeof__(*tsk),
-					      thread.i387.fxsave)));
-#endif
-	clear_fpu_state(&tsk->thread.i387.fxsave);
-	task_thread_info(tsk)->status &= ~TS_USEDFPU;
-}
-
-/*
- * Signal frame handlers.
- */
-
-static inline int save_i387(struct _fpstate __user *buf)
-{
-	struct task_struct *tsk = current;
-	int err = 0;
-
-	BUILD_BUG_ON(sizeof(struct user_i387_struct) !=
-			sizeof(tsk->thread.i387.fxsave));
-
-	if ((unsigned long)buf % 16)
-		printk("save_i387: bad fpstate %p\n", buf);
-
-	if (!used_math())
-		return 0;
-	clear_used_math(); /* trigger finit */
-	if (task_thread_info(tsk)->status & TS_USEDFPU) {
-		err = save_i387_checking((struct i387_fxsave_struct __user *)buf);
-		if (err) return err;
-		task_thread_info(tsk)->status &= ~TS_USEDFPU;
-		stts();
-	} else {
-		if (__copy_to_user(buf, &tsk->thread.i387.fxsave,
-				   sizeof(struct i387_fxsave_struct)))
-			return -1;
-	}
-	return 1;
-}
-
-/*
- * This restores directly out of user space. Exceptions are handled.
- */
-static inline int restore_i387(struct _fpstate __user *buf)
-{
-	set_used_math();
-	if (!(task_thread_info(current)->status & TS_USEDFPU)) {
-		clts();
-		task_thread_info(current)->status |= TS_USEDFPU;
-	}
-	return restore_fpu_checking((__force struct i387_fxsave_struct *)buf);
-}
-
-#else  /* CONFIG_X86_32 */
-
-static inline void tolerant_fwait(void)
-{
-	asm volatile("fnclex ; fwait");
-}
-
-static inline void restore_fpu(struct task_struct *tsk)
-{
-	/*
-	 * The "nop" is needed to make the instructions the same
-	 * length.
-	 */
-	alternative_input(
-		"nop ; frstor %1",
-		"fxrstor %1",
-		X86_FEATURE_FXSR,
-		"m" ((tsk)->thread.i387.fxsave));
-}
-
-/* We need a safe address that is cheap to find and that is already
-   in L1 during context switch. The best choices are unfortunately
-   different for UP and SMP */
-#ifdef CONFIG_SMP
-#define safe_address (__per_cpu_offset[0])
-#else
-#define safe_address (kstat_cpu(0).cpustat.user)
-#endif
-
-/*
- * These must be called with preempt disabled
- */
-static inline void __save_init_fpu(struct task_struct *tsk)
-{
-	/* Use more nops than strictly needed in case the compiler
-	   varies code */
-	alternative_input(
-		"fnsave %[fx] ;fwait;" GENERIC_NOP8 GENERIC_NOP4,
-		"fxsave %[fx]\n"
-		"bt $7,%[fsw] ; jnc 1f ; fnclex\n1:",
-		X86_FEATURE_FXSR,
-		[fx] "m" (tsk->thread.i387.fxsave),
-		[fsw] "m" (tsk->thread.i387.fxsave.swd) : "memory");
-	/* AMD K7/K8 CPUs don't save/restore FDP/FIP/FOP unless an exception
-	   is pending.  Clear the x87 state here by setting it to fixed
-	   values. safe_address is a random variable that should be in L1 */
-	alternative_input(
-		GENERIC_NOP8 GENERIC_NOP2,
-		"emms\n\t"	  	/* clear stack tags */
-		"fildl %[addr]", 	/* set F?P to defined value */
-		X86_FEATURE_FXSAVE_LEAK,
-		[addr] "m" (safe_address));
-	task_thread_info(tsk)->status &= ~TS_USEDFPU;
-}
-
-/*
- * Signal frame handlers...
- */
-extern int save_i387(struct _fpstate __user *buf);
-extern int restore_i387(struct _fpstate __user *buf);
-
-#endif	/* CONFIG_X86_64 */
-
-static inline void __unlazy_fpu(struct task_struct *tsk)
-{
-	if (task_thread_info(tsk)->status & TS_USEDFPU) {
-		__save_init_fpu(tsk);
-		stts();
-	} else
-		tsk->fpu_counter = 0;
-}
-
-static inline void __clear_fpu(struct task_struct *tsk)
-{
-	if (task_thread_info(tsk)->status & TS_USEDFPU) {
-		tolerant_fwait();
-		task_thread_info(tsk)->status &= ~TS_USEDFPU;
-		stts();
-	}
-}
-
-static inline void kernel_fpu_begin(void)
-{
-	struct thread_info *me = current_thread_info();
-	preempt_disable();
-	if (me->status & TS_USEDFPU)
-		__save_init_fpu(me->task);
-	else
-		clts();
-}
-
-static inline void kernel_fpu_end(void)
-{
-	stts();
-	preempt_enable();
-}
-
-#ifdef CONFIG_X86_64
-
-static inline void save_init_fpu(struct task_struct *tsk)
-{
-	__save_init_fpu(tsk);
-	stts();
-}
-
-#define unlazy_fpu	__unlazy_fpu
-#define clear_fpu	__clear_fpu
-
-#else  /* CONFIG_X86_32 */
-
-/*
- * These disable preemption on their own and are safe
- */
-static inline void save_init_fpu(struct task_struct *tsk)
-{
-	preempt_disable();
-	__save_init_fpu(tsk);
-	stts();
-	preempt_enable();
-}
-
-static inline void unlazy_fpu(struct task_struct *tsk)
-{
-	preempt_disable();
-	__unlazy_fpu(tsk);
-	preempt_enable();
-}
-
-static inline void clear_fpu(struct task_struct *tsk)
-{
-	preempt_disable();
-	__clear_fpu(tsk);
-	preempt_enable();
-}
-
-#endif	/* CONFIG_X86_64 */
-
-/*
- * ptrace request handlers...
- */
-extern int get_fpregs(struct user_i387_struct __user *buf,
-		      struct task_struct *tsk);
-extern int set_fpregs(struct task_struct *tsk,
-		      struct user_i387_struct __user *buf);
-
-struct user_fxsr_struct;
-extern int get_fpxregs(struct user_fxsr_struct __user *buf,
-		       struct task_struct *tsk);
-extern int set_fpxregs(struct task_struct *tsk,
-		       struct user_fxsr_struct __user *buf);
-
-/*
- * i387 state interaction
- */
-static inline unsigned short get_fpu_cwd(struct task_struct *tsk)
-{
-	if (cpu_has_fxsr) {
-		return tsk->thread.i387.fxsave.cwd;
-	} else {
-		return (unsigned short)tsk->thread.i387.fsave.cwd;
-	}
-}
-
-static inline unsigned short get_fpu_swd(struct task_struct *tsk)
-{
-	if (cpu_has_fxsr) {
-		return tsk->thread.i387.fxsave.swd;
-	} else {
-		return (unsigned short)tsk->thread.i387.fsave.swd;
-	}
-}
-
-static inline unsigned short get_fpu_mxcsr(struct task_struct *tsk)
-{
-	if (cpu_has_xmm) {
-		return tsk->thread.i387.fxsave.mxcsr;
-	} else {
-		return MXCSR_DEFAULT;
-	}
-}
-
-#endif	/* _ASM_X86_I387_H */
-- 
cgit v1.2.3-59-g8ed1b


From 1bd5718ce58fb49ac158653380fa200f4759daad Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:51 +0100
Subject: x86: x86 TLS desc_struct cleanup

This cleans up the TLS code to use struct desc_struct and to separate the
encoding and installation magic from the interface wrappers.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/tls.c  | 89 +++++++++++++++++++++++++-------------------------
 include/asm-x86/desc.h | 11 +++++--
 2 files changed, 54 insertions(+), 46 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index 98f428be8e8c..f11c92a3faac 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -24,6 +24,29 @@ static int get_free_idx(void)
 	return -ESRCH;
 }
 
+static void set_tls_desc(struct task_struct *p, int idx,
+			 const struct user_desc *info)
+{
+	struct thread_struct *t = &p->thread;
+	struct desc_struct *desc = &t->tls_array[idx - GDT_ENTRY_TLS_MIN];
+	int cpu;
+
+	/*
+	 * We must not get preempted while modifying the TLS.
+	 */
+	cpu = get_cpu();
+
+	if (LDT_empty(info))
+		desc->a = desc->b = 0;
+	else
+		fill_ldt(desc, info);
+
+	if (t == &current->thread)
+		load_TLS(t, cpu);
+
+	put_cpu();
+}
+
 /*
  * Set a given TLS descriptor:
  */
@@ -31,10 +54,7 @@ int do_set_thread_area(struct task_struct *p, int idx,
 		       struct user_desc __user *u_info,
 		       int can_allocate)
 {
-	struct thread_struct *t = &p->thread;
 	struct user_desc info;
-	u32 *desc;
-	int cpu;
 
 	if (copy_from_user(&info, u_info, sizeof(info)))
 		return -EFAULT;
@@ -57,23 +77,8 @@ int do_set_thread_area(struct task_struct *p, int idx,
 	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
 		return -EINVAL;
 
-	desc = (u32 *) &t->tls_array[idx - GDT_ENTRY_TLS_MIN];
+	set_tls_desc(p, idx, &info);
 
-	/*
-	 * We must not get preempted while modifying the TLS.
-	 */
-	cpu = get_cpu();
-
-	if (LDT_empty(&info)) {
-		desc[0] = 0;
-		desc[1] = 0;
-	} else
-		fill_ldt((struct desc_struct *)desc, &info);
-
-	if (t == &current->thread)
-		load_TLS(t, cpu);
-
-	put_cpu();
 	return 0;
 }
 
@@ -87,42 +92,38 @@ asmlinkage int sys_set_thread_area(struct user_desc __user *u_info)
  * Get the current Thread-Local Storage area:
  */
 
-#define GET_LIMIT(desc)		(((desc)[0] & 0x0ffff) | ((desc)[1] & 0xf0000))
-#define GET_32BIT(desc)		(((desc)[1] >> 22) & 1)
-#define GET_CONTENTS(desc)	(((desc)[1] >> 10) & 3)
-#define GET_WRITABLE(desc)	(((desc)[1] >>  9) & 1)
-#define GET_LIMIT_PAGES(desc)	(((desc)[1] >> 23) & 1)
-#define GET_PRESENT(desc)	(((desc)[1] >> 15) & 1)
-#define GET_USEABLE(desc)	(((desc)[1] >> 20) & 1)
-#define GET_LONGMODE(desc)	(((desc)[1] >> 21) & 1)
+static void fill_user_desc(struct user_desc *info, int idx,
+			   const struct desc_struct *desc)
+
+{
+	memset(info, 0, sizeof(*info));
+	info->entry_number = idx;
+	info->base_addr = get_desc_base(desc);
+	info->limit = get_desc_limit(desc);
+	info->seg_32bit = desc->d;
+	info->contents = desc->type >> 2;
+	info->read_exec_only = !(desc->type & 2);
+	info->limit_in_pages = desc->g;
+	info->seg_not_present = !desc->p;
+	info->useable = desc->avl;
+#ifdef CONFIG_X86_64
+	info->lm = desc->l;
+#endif
+}
 
 int do_get_thread_area(struct task_struct *p, int idx,
 		       struct user_desc __user *u_info)
 {
-	struct thread_struct *t = &p->thread;
 	struct user_desc info;
-	u32 *desc;
 
 	if (idx == -1 && get_user(idx, &u_info->entry_number))
 		return -EFAULT;
+
 	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
 		return -EINVAL;
 
-	desc = (u32 *) &t->tls_array[idx - GDT_ENTRY_TLS_MIN];
-
-	memset(&info, 0, sizeof(struct user_desc));
-	info.entry_number = idx;
-	info.base_addr = get_desc_base((struct desc_struct *)desc);
-	info.limit = GET_LIMIT(desc);
-	info.seg_32bit = GET_32BIT(desc);
-	info.contents = GET_CONTENTS(desc);
-	info.read_exec_only = !GET_WRITABLE(desc);
-	info.limit_in_pages = GET_LIMIT_PAGES(desc);
-	info.seg_not_present = !GET_PRESENT(desc);
-	info.useable = GET_USEABLE(desc);
-#ifdef CONFIG_X86_64
-	info.lm = GET_LONGMODE(desc);
-#endif
+	fill_user_desc(&info, idx,
+		       &p->thread.tls_array[idx - GDT_ENTRY_TLS_MIN]);
 
 	if (copy_to_user(u_info, &info, sizeof(info)))
 		return -EFAULT;
diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h
index e17581ad8824..5b6a05d3a771 100644
--- a/include/asm-x86/desc.h
+++ b/include/asm-x86/desc.h
@@ -7,7 +7,8 @@
 #include <asm/mmu.h>
 #include <linux/smp.h>
 
-static inline void fill_ldt(struct desc_struct *desc, struct user_desc *info)
+static inline void fill_ldt(struct desc_struct *desc,
+			    const struct user_desc *info)
 {
 	desc->limit0 = info->limit & 0x0ffff;
 	desc->base0 = info->base_addr & 0x0000ffff;
@@ -275,10 +276,16 @@ static inline void load_LDT(mm_context_t *pc)
 	preempt_enable();
 }
 
-static inline unsigned long get_desc_base(struct desc_struct *desc)
+static inline unsigned long get_desc_base(const struct desc_struct *desc)
 {
 	return desc->base0 | ((desc->base1) << 16) | ((desc->base2) << 24);
 }
+
+static inline unsigned long get_desc_limit(const struct desc_struct *desc)
+{
+	return desc->limit0 | (desc->limit << 16);
+}
+
 static inline void _set_gate(int gate, unsigned type, void *addr,
 			      unsigned dpl, unsigned ist, unsigned seg)
 {
-- 
cgit v1.2.3-59-g8ed1b


From 4c79a2d8e5b7e0a2f987ace9b6af9e7a1655447b Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:52 +0100
Subject: x86: x86 user_regset TLS

This adds accessor functions in the user_regset style for the TLS data.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/tls.c | 89 +++++++++++++++++++++++++++++++++++++++++++++++----
 arch/x86/kernel/tls.h | 21 ++++++++++++
 2 files changed, 104 insertions(+), 6 deletions(-)
 create mode 100644 arch/x86/kernel/tls.h

(limited to 'arch')

diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index f11c92a3faac..6dfd4e76661a 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -2,6 +2,7 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/user.h>
+#include <linux/regset.h>
 
 #include <asm/uaccess.h>
 #include <asm/desc.h>
@@ -10,6 +11,8 @@
 #include <asm/processor.h>
 #include <asm/proto.h>
 
+#include "tls.h"
+
 /*
  * sys_alloc_thread_area: get a yet unused TLS descriptor index.
  */
@@ -25,7 +28,7 @@ static int get_free_idx(void)
 }
 
 static void set_tls_desc(struct task_struct *p, int idx,
-			 const struct user_desc *info)
+			 const struct user_desc *info, int n)
 {
 	struct thread_struct *t = &p->thread;
 	struct desc_struct *desc = &t->tls_array[idx - GDT_ENTRY_TLS_MIN];
@@ -36,10 +39,14 @@ static void set_tls_desc(struct task_struct *p, int idx,
 	 */
 	cpu = get_cpu();
 
-	if (LDT_empty(info))
-		desc->a = desc->b = 0;
-	else
-		fill_ldt(desc, info);
+	while (n-- > 0) {
+		if (LDT_empty(info))
+			desc->a = desc->b = 0;
+		else
+			fill_ldt(desc, info);
+		++info;
+		++desc;
+	}
 
 	if (t == &current->thread)
 		load_TLS(t, cpu);
@@ -77,7 +84,7 @@ int do_set_thread_area(struct task_struct *p, int idx,
 	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
 		return -EINVAL;
 
-	set_tls_desc(p, idx, &info);
+	set_tls_desc(p, idx, &info, 1);
 
 	return 0;
 }
@@ -134,3 +141,73 @@ asmlinkage int sys_get_thread_area(struct user_desc __user *u_info)
 {
 	return do_get_thread_area(current, -1, u_info);
 }
+
+int regset_tls_active(struct task_struct *target,
+		      const struct user_regset *regset)
+{
+	struct thread_struct *t = &target->thread;
+	int n = GDT_ENTRY_TLS_ENTRIES;
+	while (n > 0 && desc_empty(&t->tls_array[n - 1]))
+		--n;
+	return n;
+}
+
+int regset_tls_get(struct task_struct *target, const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   void *kbuf, void __user *ubuf)
+{
+	const struct desc_struct *tls;
+
+	if (pos > GDT_ENTRY_TLS_ENTRIES * sizeof(struct user_desc) ||
+	    (pos % sizeof(struct user_desc)) != 0 ||
+	    (count % sizeof(struct user_desc)) != 0)
+		return -EINVAL;
+
+	pos /= sizeof(struct user_desc);
+	count /= sizeof(struct user_desc);
+
+	tls = &target->thread.tls_array[pos];
+
+	if (kbuf) {
+		struct user_desc *info = kbuf;
+		while (count-- > 0)
+			fill_user_desc(info++, GDT_ENTRY_TLS_MIN + pos++,
+				       tls++);
+	} else {
+		struct user_desc __user *u_info = ubuf;
+		while (count-- > 0) {
+			struct user_desc info;
+			fill_user_desc(&info, GDT_ENTRY_TLS_MIN + pos++, tls++);
+			if (__copy_to_user(u_info++, &info, sizeof(info)))
+				return -EFAULT;
+		}
+	}
+
+	return 0;
+}
+
+int regset_tls_set(struct task_struct *target, const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   const void *kbuf, const void __user *ubuf)
+{
+	struct user_desc infobuf[GDT_ENTRY_TLS_ENTRIES];
+	const struct user_desc *info;
+
+	if (pos > GDT_ENTRY_TLS_ENTRIES * sizeof(struct user_desc) ||
+	    (pos % sizeof(struct user_desc)) != 0 ||
+	    (count % sizeof(struct user_desc)) != 0)
+		return -EINVAL;
+
+	if (kbuf)
+		info = kbuf;
+	else if (__copy_from_user(infobuf, ubuf, count))
+		return -EFAULT;
+	else
+		info = infobuf;
+
+	set_tls_desc(target,
+		     GDT_ENTRY_TLS_MIN + (pos / sizeof(struct user_desc)),
+		     info, count / sizeof(struct user_desc));
+
+	return 0;
+}
diff --git a/arch/x86/kernel/tls.h b/arch/x86/kernel/tls.h
new file mode 100644
index 000000000000..2f083a2fe216
--- /dev/null
+++ b/arch/x86/kernel/tls.h
@@ -0,0 +1,21 @@
+/*
+ * Internal declarations for x86 TLS implementation functions.
+ *
+ * Copyright (C) 2007 Red Hat, Inc.  All rights reserved.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ *
+ * Red Hat Author: Roland McGrath.
+ */
+
+#ifndef _ARCH_X86_KERNEL_TLS_H
+
+#include <linux/regset.h>
+
+extern user_regset_active_fn regset_tls_active;
+extern user_regset_get_fn regset_tls_get;
+extern user_regset_set_fn regset_tls_set;
+
+#endif	/* _ARCH_X86_KERNEL_TLS_H */
-- 
cgit v1.2.3-59-g8ed1b


From 91e7b707a4776185f91f03bd052aa53af820094e Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:52 +0100
Subject: x86: x86 user_regset general regs

This adds accessor functions in the user_regset style for
the general registers (struct user_regs_struct).

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 109 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 084805ab7323..ef349ff170a7 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -13,6 +13,7 @@
 #include <linux/smp.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
+#include <linux/regset.h>
 #include <linux/user.h>
 #include <linux/security.h>
 #include <linux/audit.h>
@@ -368,6 +369,59 @@ static unsigned long getreg(struct task_struct *task, unsigned long offset)
 	return *pt_regs_access(task_pt_regs(task), offset);
 }
 
+static int genregs_get(struct task_struct *target,
+		       const struct user_regset *regset,
+		       unsigned int pos, unsigned int count,
+		       void *kbuf, void __user *ubuf)
+{
+	if (kbuf) {
+		unsigned long *k = kbuf;
+		while (count > 0) {
+			*k++ = getreg(target, pos);
+			count -= sizeof(*k);
+			pos += sizeof(*k);
+		}
+	} else {
+		unsigned long __user *u = ubuf;
+		while (count > 0) {
+			if (__put_user(getreg(target, pos), u++))
+				return -EFAULT;
+			count -= sizeof(*u);
+			pos += sizeof(*u);
+		}
+	}
+
+	return 0;
+}
+
+static int genregs_set(struct task_struct *target,
+		       const struct user_regset *regset,
+		       unsigned int pos, unsigned int count,
+		       const void *kbuf, const void __user *ubuf)
+{
+	int ret = 0;
+	if (kbuf) {
+		const unsigned long *k = kbuf;
+		while (count > 0 && !ret) {
+			ret = putreg(target, pos, *k++);
+			count -= sizeof(*k);
+			pos += sizeof(*k);
+		}
+	} else {
+		const unsigned long  __user *u = ubuf;
+		while (count > 0 && !ret) {
+			unsigned long word;
+			ret = __get_user(word, u++);
+			if (ret)
+				break;
+			ret = putreg(target, pos, word);
+			count -= sizeof(*u);
+			pos += sizeof(*u);
+		}
+	}
+	return ret;
+}
+
 /*
  * This function is trivial and will be inlined by the compiler.
  * Having it separates the implementation details of debug
@@ -1008,6 +1062,61 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 #undef R32
 #undef SEG32
 
+static int genregs32_get(struct task_struct *target,
+			 const struct user_regset *regset,
+			 unsigned int pos, unsigned int count,
+			 void *kbuf, void __user *ubuf)
+{
+	if (kbuf) {
+		compat_ulong_t *k = kbuf;
+		while (count > 0) {
+			getreg32(target, pos, k++);
+			count -= sizeof(*k);
+			pos += sizeof(*k);
+		}
+	} else {
+		compat_ulong_t __user *u = ubuf;
+		while (count > 0) {
+			compat_ulong_t word;
+			getreg32(target, pos, &word);
+			if (__put_user(word, u++))
+				return -EFAULT;
+			count -= sizeof(*u);
+			pos += sizeof(*u);
+		}
+	}
+
+	return 0;
+}
+
+static int genregs32_set(struct task_struct *target,
+			 const struct user_regset *regset,
+			 unsigned int pos, unsigned int count,
+			 const void *kbuf, const void __user *ubuf)
+{
+	int ret = 0;
+	if (kbuf) {
+		const compat_ulong_t *k = kbuf;
+		while (count > 0 && !ret) {
+			ret = putreg(target, pos, *k++);
+			count -= sizeof(*k);
+			pos += sizeof(*k);
+		}
+	} else {
+		const compat_ulong_t __user *u = ubuf;
+		while (count > 0 && !ret) {
+			compat_ulong_t word;
+			ret = __get_user(word, u++);
+			if (ret)
+				break;
+			ret = putreg(target, pos, word);
+			count -= sizeof(*u);
+			pos += sizeof(*u);
+		}
+	}
+	return ret;
+}
+
 static long ptrace32_siginfo(unsigned request, u32 pid, u32 addr, u32 data)
 {
 	siginfo_t __user *si = compat_alloc_user_space(sizeof(siginfo_t));
-- 
cgit v1.2.3-59-g8ed1b


From 070459d95e132726a6ac0c8204f0b5ef653bd824 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:53 +0100
Subject: x86: x86 user_regset_view

This defines task_user_regset_view and the tables
describing the x86 user_regset layouts for 32 and 64.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 87 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index ef349ff170a7..196cc27bd39a 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -15,6 +15,7 @@
 #include <linux/ptrace.h>
 #include <linux/regset.h>
 #include <linux/user.h>
+#include <linux/elf.h>
 #include <linux/security.h>
 #include <linux/audit.h>
 #include <linux/seccomp.h>
@@ -32,6 +33,14 @@
 #include <asm/proto.h>
 #include <asm/ds.h>
 
+#include "tls.h"
+
+enum x86_regset {
+	REGSET_GENERAL,
+	REGSET_FP,
+	REGSET_XFP,
+	REGSET_TLS,
+};
 
 /*
  * does not yet catch signals sent when the child dies.
@@ -1335,6 +1344,84 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 
 #endif	/* CONFIG_IA32_EMULATION */
 
+#ifdef CONFIG_X86_64
+
+static const struct user_regset x86_64_regsets[] = {
+	[REGSET_GENERAL] = {
+		.core_note_type = NT_PRSTATUS,
+		.n = sizeof(struct user_regs_struct) / sizeof(long),
+		.size = sizeof(long), .align = sizeof(long),
+		.get = genregs_get, .set = genregs_set
+	},
+	[REGSET_FP] = {
+		.core_note_type = NT_PRFPREG,
+		.n = sizeof(struct user_i387_struct) / sizeof(long),
+		.size = sizeof(long), .align = sizeof(long),
+		.active = xfpregs_active, .get = xfpregs_get, .set = xfpregs_set
+	},
+};
+
+static const struct user_regset_view user_x86_64_view = {
+	.name = "x86_64", .e_machine = EM_X86_64,
+	.regsets = x86_64_regsets, .n = ARRAY_SIZE(x86_64_regsets)
+};
+
+#else  /* CONFIG_X86_32 */
+
+#define user_regs_struct32	user_regs_struct
+#define genregs32_get		genregs_get
+#define genregs32_set		genregs_set
+
+#endif	/* CONFIG_X86_64 */
+
+#if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
+static const struct user_regset x86_32_regsets[] = {
+	[REGSET_GENERAL] = {
+		.core_note_type = NT_PRSTATUS,
+		.n = sizeof(struct user_regs_struct32) / sizeof(u32),
+		.size = sizeof(u32), .align = sizeof(u32),
+		.get = genregs32_get, .set = genregs32_set
+	},
+	[REGSET_FP] = {
+		.core_note_type = NT_PRFPREG,
+		.n = sizeof(struct user_i387_struct) / sizeof(u32),
+		.size = sizeof(u32), .align = sizeof(u32),
+		.active = fpregs_active, .get = fpregs_get, .set = fpregs_set
+	},
+	[REGSET_XFP] = {
+		.core_note_type = NT_PRXFPREG,
+		.n = sizeof(struct user_i387_struct) / sizeof(u32),
+		.size = sizeof(u32), .align = sizeof(u32),
+		.active = xfpregs_active, .get = xfpregs_get, .set = xfpregs_set
+	},
+	[REGSET_TLS] = {
+		.n = GDT_ENTRY_TLS_ENTRIES, .bias = GDT_ENTRY_TLS_MIN,
+		.size = sizeof(struct user_desc),
+		.align = sizeof(struct user_desc),
+		.active = regset_tls_active,
+		.get = regset_tls_get, .set = regset_tls_set
+	},
+};
+
+static const struct user_regset_view user_x86_32_view = {
+	.name = "i386", .e_machine = EM_386,
+	.regsets = x86_32_regsets, .n = ARRAY_SIZE(x86_32_regsets)
+};
+#endif
+
+const struct user_regset_view *task_user_regset_view(struct task_struct *task)
+{
+#ifdef CONFIG_IA32_EMULATION
+	if (test_tsk_thread_flag(task, TIF_IA32))
+#endif
+#if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
+		return &user_x86_32_view;
+#endif
+#ifdef CONFIG_X86_64
+	return &user_x86_64_view;
+#endif
+}
+
 #ifdef CONFIG_X86_32
 
 void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code)
-- 
cgit v1.2.3-59-g8ed1b


From 5a4646a4efed8c835f76c3b88f3155f6ab5b8d9b Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:54 +0100
Subject: x86: x86 ptrace user_regset

This cleans up the PTRACE_*REGS* request code so each one is just a
simple call to copy_regset_to_user or copy_regset_from_user.  The
ptrace layouts already match the user_regset formats (core dump formats).

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 236 ++++++++++++++++-------------------------------
 1 file changed, 77 insertions(+), 159 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 196cc27bd39a..f8b89059e6ed 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -750,9 +750,13 @@ void ptrace_disable(struct task_struct *child)
 	}
 }
 
+#if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
+static const struct user_regset_view user_x86_32_view; /* Initialized below. */
+#endif
+
 long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
-	int i, ret;
+	int ret;
 	unsigned long __user *datap = (unsigned long __user *)data;
 
 	switch (request) {
@@ -805,82 +809,46 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		}
 		break;
 
-	case PTRACE_GETREGS: { /* Get all gp regs from the child. */
-		if (!access_ok(VERIFY_WRITE, datap, sizeof(struct user_regs_struct))) {
-			ret = -EIO;
-			break;
-		}
-		for (i = 0; i < sizeof(struct user_regs_struct); i += sizeof(long)) {
-			__put_user(getreg(child, i), datap);
-			datap++;
-		}
-		ret = 0;
-		break;
-	}
-
-	case PTRACE_SETREGS: { /* Set all gp regs in the child. */
-		unsigned long tmp;
-		if (!access_ok(VERIFY_READ, datap, sizeof(struct user_regs_struct))) {
-			ret = -EIO;
-			break;
-		}
-		for (i = 0; i < sizeof(struct user_regs_struct); i += sizeof(long)) {
-			__get_user(tmp, datap);
-			putreg(child, i, tmp);
-			datap++;
-		}
-		ret = 0;
-		break;
-	}
-
-	case PTRACE_GETFPREGS: { /* Get the child FPU state. */
-		if (!access_ok(VERIFY_WRITE, datap,
-			       sizeof(struct user_i387_struct))) {
-			ret = -EIO;
-			break;
-		}
-		ret = 0;
-		if (!tsk_used_math(child))
-			init_fpu(child);
-		get_fpregs((struct user_i387_struct __user *)data, child);
-		break;
-	}
-
-	case PTRACE_SETFPREGS: { /* Set the child FPU state. */
-		if (!access_ok(VERIFY_READ, datap,
-			       sizeof(struct user_i387_struct))) {
-			ret = -EIO;
-			break;
-		}
-		set_stopped_child_used_math(child);
-		set_fpregs(child, (struct user_i387_struct __user *)data);
-		ret = 0;
-		break;
-	}
+	case PTRACE_GETREGS:	/* Get all gp regs from the child. */
+		return copy_regset_to_user(child,
+					   task_user_regset_view(current),
+					   REGSET_GENERAL,
+					   0, sizeof(struct user_regs_struct),
+					   datap);
+
+	case PTRACE_SETREGS:	/* Set all gp regs in the child. */
+		return copy_regset_from_user(child,
+					     task_user_regset_view(current),
+					     REGSET_GENERAL,
+					     0, sizeof(struct user_regs_struct),
+					     datap);
+
+	case PTRACE_GETFPREGS:	/* Get the child FPU state. */
+		return copy_regset_to_user(child,
+					   task_user_regset_view(current),
+					   REGSET_FP,
+					   0, sizeof(struct user_i387_struct),
+					   datap);
+
+	case PTRACE_SETFPREGS:	/* Set the child FPU state. */
+		return copy_regset_from_user(child,
+					     task_user_regset_view(current),
+					     REGSET_FP,
+					     0, sizeof(struct user_i387_struct),
+					     datap);
 
 #ifdef CONFIG_X86_32
-	case PTRACE_GETFPXREGS: { /* Get the child extended FPU state. */
-		if (!access_ok(VERIFY_WRITE, datap,
-			       sizeof(struct user_fxsr_struct))) {
-			ret = -EIO;
-			break;
-		}
-		if (!tsk_used_math(child))
-			init_fpu(child);
-		ret = get_fpxregs((struct user_fxsr_struct __user *)data, child);
-		break;
-	}
-
-	case PTRACE_SETFPXREGS: { /* Set the child extended FPU state. */
-		if (!access_ok(VERIFY_READ, datap,
-			       sizeof(struct user_fxsr_struct))) {
-			ret = -EIO;
-			break;
-		}
-		set_stopped_child_used_math(child);
-		ret = set_fpxregs(child, (struct user_fxsr_struct __user *)data);
-		break;
-	}
+	case PTRACE_GETFPXREGS:	/* Get the child extended FPU state. */
+		return copy_regset_to_user(child, &user_x86_32_view,
+					   REGSET_XFP,
+					   0, sizeof(struct user_fxsr_struct),
+					   datap);
+
+	case PTRACE_SETFPXREGS:	/* Set the child extended FPU state. */
+		return copy_regset_from_user(child, &user_x86_32_view,
+					     REGSET_XFP,
+					     0, sizeof(struct user_fxsr_struct),
+					     datap);
 #endif
 
 #if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
@@ -1243,90 +1211,40 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 		ret = putreg32(child, addr, data);
 		break;
 
-	case PTRACE_GETREGS: { /* Get all gp regs from the child. */
-		int i;
-
-		if (!access_ok(VERIFY_WRITE, datap, 16*4)) {
-			ret = -EIO;
-			break;
-		}
-		ret = 0;
-		for (i = 0; i < sizeof(struct user_regs_struct32); i += sizeof(__u32)) {
-			getreg32(child, i, &val);
-			ret |= __put_user(val, (u32 __user *)datap);
-			datap += sizeof(u32);
-		}
-		break;
-	}
-
-	case PTRACE_SETREGS: { /* Set all gp regs in the child. */
-		unsigned long tmp;
-		int i;
-
-		if (!access_ok(VERIFY_READ, datap, 16*4)) {
-			ret = -EIO;
-			break;
-		}
-		ret = 0;
-		for (i = 0; i < sizeof(struct user_regs_struct32); i += sizeof(u32)) {
-			ret |= __get_user(tmp, (u32 __user *)datap);
-			putreg32(child, i, tmp);
-			datap += sizeof(u32);
-		}
-		break;
-	}
-
-	case PTRACE_GETFPREGS:
-		ret = -EIO;
-		if (!access_ok(VERIFY_READ, compat_ptr(data),
-			       sizeof(struct user_i387_struct)))
-			break;
-		save_i387_ia32(child, datap, childregs, 1);
-		ret = 0;
-			break;
-
-	case PTRACE_SETFPREGS:
-		ret = -EIO;
-		if (!access_ok(VERIFY_WRITE, datap,
-			       sizeof(struct user_i387_struct)))
-			break;
-		ret = 0;
-		/* don't check EFAULT to be bug-to-bug compatible to i386 */
-		restore_i387_ia32(child, datap, 1);
-		break;
-
-	case PTRACE_GETFPXREGS: {
-		struct user32_fxsr_struct __user *u = datap;
-
-		init_fpu(child);
-		ret = -EIO;
-		if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
-			break;
-			ret = -EFAULT;
-		if (__copy_to_user(u, &child->thread.i387.fxsave, sizeof(*u)))
-			break;
-		ret = __put_user(childregs->cs, &u->fcs);
-		ret |= __put_user(child->thread.ds, &u->fos);
-		break;
-	}
-	case PTRACE_SETFPXREGS: {
-		struct user32_fxsr_struct __user *u = datap;
-
-		unlazy_fpu(child);
-		ret = -EIO;
-		if (!access_ok(VERIFY_READ, u, sizeof(*u)))
-			break;
-		/*
-		 * no checking to be bug-to-bug compatible with i386.
-		 * but silence warning
-		 */
-		if (__copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u)))
-			;
-		set_stopped_child_used_math(child);
-		child->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
-		ret = 0;
-		break;
-	}
+	case PTRACE_GETREGS:	/* Get all gp regs from the child. */
+		return copy_regset_to_user(child, &user_x86_32_view,
+					   REGSET_GENERAL,
+					   0, sizeof(struct user_regs_struct32),
+					   datap);
+
+	case PTRACE_SETREGS:	/* Set all gp regs in the child. */
+		return copy_regset_from_user(child, &user_x86_32_view,
+					     REGSET_GENERAL, 0,
+					     sizeof(struct user_regs_struct32),
+					     datap);
+
+	case PTRACE_GETFPREGS:	/* Get the child FPU state. */
+		return copy_regset_to_user(child, &user_x86_32_view,
+					   REGSET_FP, 0,
+					   sizeof(struct user_i387_ia32_struct),
+					   datap);
+
+	case PTRACE_SETFPREGS:	/* Set the child FPU state. */
+		return copy_regset_from_user(
+			child, &user_x86_32_view, REGSET_FP,
+			0, sizeof(struct user_i387_ia32_struct), datap);
+
+	case PTRACE_GETFPXREGS:	/* Get the child extended FPU state. */
+		return copy_regset_to_user(child, &user_x86_32_view,
+					   REGSET_XFP, 0,
+					   sizeof(struct user32_fxsr_struct),
+					   datap);
+
+	case PTRACE_SETFPXREGS:	/* Set the child extended FPU state. */
+		return copy_regset_from_user(child, &user_x86_32_view,
+					     REGSET_XFP, 0,
+					     sizeof(struct user32_fxsr_struct),
+					     datap);
 
 	case PTRACE_GETEVENTMSG:
 		ret = put_user(child->ptrace_message,
-- 
cgit v1.2.3-59-g8ed1b


From 60b3b9af35aad66345e395be911e46fb8443f0c5 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:55 +0100
Subject: x86: x86 user_regset cleanup

This removes a bunch of dead code that is no longer needed now
that the user_regset interfaces are being used for all these jobs.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/i387.c        | 105 ++++--------------------------------------
 arch/x86/kernel/process_32.c  |  16 -------
 arch/x86/kernel/process_64.c  |  19 --------
 arch/x86/math-emu/fpu_entry.c |  14 ------
 include/asm-x86/elf.h         |  68 ---------------------------
 include/asm-x86/i387.h        |  14 ------
 include/asm-x86/math_emu.h    |   5 --
 7 files changed, 9 insertions(+), 232 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index f7f7568dd7bc..26719bd2c77c 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -454,113 +454,26 @@ int restore_i387_ia32(struct _fpstate_ia32 __user *buf)
 	return err;
 }
 
-#endif	/* CONFIG_X86_32 || CONFIG_IA32_EMULATION */
-
-#ifdef CONFIG_X86_64
-
-int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *tsk)
-{
-	return xfpregs_get(tsk, NULL, 0, sizeof(*buf), NULL, buf);
-}
-
-int set_fpregs(struct task_struct *tsk, struct user_i387_struct __user *buf)
-{
-	return xfpregs_set(tsk, NULL, 0, sizeof(*buf), NULL, buf);
-}
-
-#else
-
-int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *tsk)
-{
-	return fpregs_get(tsk, NULL, 0, sizeof(*buf), NULL, buf);
-}
-
-int set_fpregs(struct task_struct *tsk, struct user_i387_struct __user *buf)
-{
-	return fpregs_set(tsk, NULL, 0, sizeof(*buf), NULL, buf);
-}
-
-int get_fpxregs(struct user_fxsr_struct __user *buf, struct task_struct *tsk)
-{
-	return xfpregs_get(tsk, NULL, 0, sizeof(*buf), NULL, buf);
-}
-
-int set_fpxregs(struct task_struct *tsk, struct user_fxsr_struct __user *buf)
-{
-	return xfpregs_get(tsk, NULL, 0, sizeof(*buf), NULL, buf);
-}
-
-#endif
-
 /*
  * FPU state for core dumps.
+ * This is only used for a.out dumps now.
+ * It is declared generically using elf_fpregset_t (which is
+ * struct user_i387_struct) but is in fact only used for 32-bit
+ * dumps, so on 64-bit it is really struct user_i387_ia32_struct.
  */
-
-static inline void copy_fpu_fsave(struct task_struct *tsk,
-				  struct user_i387_struct *fpu)
-{
-	memcpy(fpu, &tsk->thread.i387.fsave,
-	       sizeof(struct user_i387_struct));
-}
-
-static inline void copy_fpu_fxsave(struct task_struct *tsk,
-				   struct user_i387_struct *fpu)
-{
-	unsigned short *to;
-	unsigned short *from;
-	int i;
-
-	memcpy(fpu, &tsk->thread.i387.fxsave, 7 * sizeof(long));
-
-	to = (unsigned short *)&fpu->st_space[0];
-	from = (unsigned short *)&tsk->thread.i387.fxsave.st_space[0];
-	for (i = 0; i < 8; i++, to += 5, from += 8)
-		memcpy(to, from, 5 * sizeof(unsigned short));
-}
-
 int dump_fpu(struct pt_regs *regs, struct user_i387_struct *fpu)
 {
 	int fpvalid;
 	struct task_struct *tsk = current;
 
 	fpvalid = !!used_math();
-	if (fpvalid) {
-		unlazy_fpu(tsk);
-		if (cpu_has_fxsr) {
-			copy_fpu_fxsave(tsk, fpu);
-		} else {
-			copy_fpu_fsave(tsk, fpu);
-		}
-	}
+	if (fpvalid)
+		fpvalid = !fpregs_get(tsk, NULL,
+				      0, sizeof(struct user_i387_ia32_struct),
+				      fpu, NULL);
 
 	return fpvalid;
 }
 EXPORT_SYMBOL(dump_fpu);
 
-int dump_task_fpu(struct task_struct *tsk, struct user_i387_struct *fpu)
-{
-	int fpvalid = !!tsk_used_math(tsk);
-
-	if (fpvalid) {
-		if (tsk == current)
-			unlazy_fpu(tsk);
-		if (cpu_has_fxsr)
-			copy_fpu_fxsave(tsk, fpu);
-		else
-			copy_fpu_fsave(tsk, fpu);
-	}
-	return fpvalid;
-}
-
-int dump_task_extended_fpu(struct task_struct *tsk,
-			   struct user32_fxsr_struct *fpu)
-{
-	int fpvalid = tsk_used_math(tsk) && cpu_has_fxsr;
-
-	if (fpvalid) {
-		if (tsk == current)
-		       unlazy_fpu(tsk);
-		memcpy(fpu, &tsk->thread.i387.fxsave, sizeof(*fpu));
-	}
-	return fpvalid;
-}
+#endif	/* CONFIG_X86_32 || CONFIG_IA32_EMULATION */
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 40cc29695eba..35a6f318c541 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -571,22 +571,6 @@ void dump_thread(struct pt_regs * regs, struct user * dump)
 }
 EXPORT_SYMBOL(dump_thread);
 
-/*
- * Capture the user space registers if the task is not running (in user space)
- */
-int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
-{
-	struct pt_regs ptregs = *task_pt_regs(tsk);
-	ptregs.cs &= 0xffff;
-	ptregs.ds &= 0xffff;
-	ptregs.es &= 0xffff;
-	ptregs.ss &= 0xffff;
-
-	elf_core_copy_regs(regs, &ptregs);
-
-	return 1;
-}
-
 #ifdef CONFIG_SECCOMP
 static void hard_disable_TSC(void)
 {
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index e3a3610ade10..78d80067b7f9 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -544,24 +544,6 @@ out:
  */
 #define loaddebug(thread, r) set_debugreg(thread->debugreg ## r, r)
 
-/*
- * Capture the user space registers if the task is not running (in user space)
- */
-int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
-{
-	struct pt_regs *pp, ptregs;
-
-	pp = task_pt_regs(tsk);
-
-	ptregs = *pp;
-	ptregs.cs &= 0xffff;
-	ptregs.ss &= 0xffff;
-
-	elf_core_copy_regs(regs, &ptregs);
-
-	return 1;
-}
-
 static inline void __switch_to_xtra(struct task_struct *prev_p,
 				    struct task_struct *next_p,
 				    struct tss_struct *tss)
@@ -929,4 +911,3 @@ unsigned long arch_randomize_brk(struct mm_struct *mm)
 	unsigned long range_end = mm->brk + 0x02000000;
 	return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
 }
-
diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index cfbdaa1532ce..760baeea5f07 100644
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -761,17 +761,3 @@ int fpregs_soft_get(struct task_struct *target,
 
 	return ret;
 }
-
-int save_i387_soft(void *s387, struct _fpstate __user *buf)
-{
-	return fpregs_soft_get(current, NULL,
-			       0, sizeof(struct user_i387_struct),
-			       NULL, buf) ? -1 : 1;
-}
-
-int restore_i387_soft(void *s387, struct _fpstate __user *buf)
-{
-	return fpregs_soft_set(current, NULL,
-			       0, sizeof(struct user_i387_struct),
-			       NULL, buf) ? -1 : 1;
-}
diff --git a/include/asm-x86/elf.h b/include/asm-x86/elf.h
index 123e2d599c6d..d6bf7421d7b0 100644
--- a/include/asm-x86/elf.h
+++ b/include/asm-x86/elf.h
@@ -104,28 +104,6 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
 	_r->ax = 0; \
 } while (0)
 
-/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
-   now struct_user_regs, they are different) */
-
-#define ELF_CORE_COPY_REGS(pr_reg, regs)		\
-	pr_reg[0] = regs->bx;				\
-	pr_reg[1] = regs->cx;				\
-	pr_reg[2] = regs->dx;				\
-	pr_reg[3] = regs->si;				\
-	pr_reg[4] = regs->di;				\
-	pr_reg[5] = regs->bp;				\
-	pr_reg[6] = regs->ax;				\
-	pr_reg[7] = regs->ds & 0xffff;			\
-	pr_reg[8] = regs->es & 0xffff;			\
-	pr_reg[9] = regs->fs & 0xffff;			\
-	savesegment(gs,pr_reg[10]);			\
-	pr_reg[11] = regs->orig_ax;			\
-	pr_reg[12] = regs->ip;				\
-	pr_reg[13] = regs->cs & 0xffff;			\
-	pr_reg[14] = regs->flags;			\
-	pr_reg[15] = regs->sp;				\
-	pr_reg[16] = regs->ss & 0xffff;
-
 #define ELF_PLATFORM	(utsname()->machine)
 #define set_personality_64bit()	do { } while (0)
 extern unsigned int vdso_enabled;
@@ -159,41 +137,6 @@ extern unsigned int vdso_enabled;
 	clear_thread_flag(TIF_IA32);			  \
 } while (0)
 
-/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
-   now struct_user_regs, they are different). Assumes current is the process
-   getting dumped. */
-
-#define ELF_CORE_COPY_REGS(pr_reg, regs)  do {			\
-	unsigned v;						\
-	(pr_reg)[0] = (regs)->r15;				\
-	(pr_reg)[1] = (regs)->r14;				\
-	(pr_reg)[2] = (regs)->r13;				\
-	(pr_reg)[3] = (regs)->r12;				\
-	(pr_reg)[4] = (regs)->bp;				\
-	(pr_reg)[5] = (regs)->bx;				\
-	(pr_reg)[6] = (regs)->r11;				\
-	(pr_reg)[7] = (regs)->r10;				\
-	(pr_reg)[8] = (regs)->r9;				\
-	(pr_reg)[9] = (regs)->r8;				\
-	(pr_reg)[10] = (regs)->ax;				\
-	(pr_reg)[11] = (regs)->cx;				\
-	(pr_reg)[12] = (regs)->dx;				\
-	(pr_reg)[13] = (regs)->si;				\
-	(pr_reg)[14] = (regs)->di;				\
-	(pr_reg)[15] = (regs)->orig_ax;			\
-	(pr_reg)[16] = (regs)->ip;				\
-	(pr_reg)[17] = (regs)->cs;				\
-	(pr_reg)[18] = (regs)->flags;				\
-	(pr_reg)[19] = (regs)->sp;				\
-	(pr_reg)[20] = (regs)->ss;				\
-	(pr_reg)[21] = current->thread.fs;			\
-	(pr_reg)[22] = current->thread.gs;			\
-	asm("movl %%ds,%0" : "=r" (v)); (pr_reg)[23] = v;	\
-	asm("movl %%es,%0" : "=r" (v)); (pr_reg)[24] = v;	\
-	asm("movl %%fs,%0" : "=r" (v)); (pr_reg)[25] = v;	\
-	asm("movl %%gs,%0" : "=r" (v)); (pr_reg)[26] = v;	\
-} while(0);
-
 /* I'm not sure if we can use '-' here */
 #define ELF_PLATFORM       ("x86_64")
 extern void set_personality_64bit(void);
@@ -236,18 +179,7 @@ extern int vdso_enabled;
 
 struct task_struct;
 
-extern int dump_task_regs (struct task_struct *, elf_gregset_t *);
-extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *);
-
-#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
-#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
-
 #ifdef CONFIG_X86_32
-extern int dump_task_extended_fpu (struct task_struct *,
-				   struct user_fxsr_struct *);
-#define ELF_CORE_COPY_XFPREGS(tsk, elf_xfpregs) \
-	dump_task_extended_fpu(tsk, elf_xfpregs)
-#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
 
 #define VDSO_HIGH_BASE		(__fix_to_virt(FIX_VDSO))
 
diff --git a/include/asm-x86/i387.h b/include/asm-x86/i387.h
index de435b9114df..ba8105ca822b 100644
--- a/include/asm-x86/i387.h
+++ b/include/asm-x86/i387.h
@@ -327,20 +327,6 @@ static inline void clear_fpu(struct task_struct *tsk)
 
 #endif	/* CONFIG_X86_64 */
 
-/*
- * ptrace request handlers...
- */
-extern int get_fpregs(struct user_i387_struct __user *buf,
-		      struct task_struct *tsk);
-extern int set_fpregs(struct task_struct *tsk,
-		      struct user_i387_struct __user *buf);
-
-struct user_fxsr_struct;
-extern int get_fpxregs(struct user_fxsr_struct __user *buf,
-		       struct task_struct *tsk);
-extern int set_fpxregs(struct task_struct *tsk,
-		       struct user_fxsr_struct __user *buf);
-
 /*
  * i387 state interaction
  */
diff --git a/include/asm-x86/math_emu.h b/include/asm-x86/math_emu.h
index a4b0aa3320e6..9bf4ae93ab10 100644
--- a/include/asm-x86/math_emu.h
+++ b/include/asm-x86/math_emu.h
@@ -1,11 +1,6 @@
 #ifndef _I386_MATH_EMU_H
 #define _I386_MATH_EMU_H
 
-#include <asm/sigcontext.h>
-
-int restore_i387_soft(void *s387, struct _fpstate __user *buf);
-int save_i387_soft(void *s387, struct _fpstate __user *buf);
-
 /* This structure matches the layout of the data saved to the stack
    following a device-not-present interrupt, part of it saved
    automatically by the 80386/80486.
-- 
cgit v1.2.3-59-g8ed1b


From a97f52e67890fda6b373c1c1895ff1c1c69b36c8 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:55 +0100
Subject: x86: compat_binfmt_elf

This switches x86-64's 32-bit ELF support to use the shared
fs/compat_binfmt_elf.c code instead of our own ia32_binfmt.c.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig             |  1 +
 arch/x86/ia32/Makefile       |  3 +-
 arch/x86/vdso/vdso32-setup.c | 33 +++++++++++++++++
 include/asm-x86/elf.h        | 88 ++++++++++++++++++++++++++++++++------------
 4 files changed, 99 insertions(+), 26 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1992b8fe6a2f..d89b94528153 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1532,6 +1532,7 @@ source "fs/Kconfig.binfmt"
 config IA32_EMULATION
 	bool "IA32 Emulation"
 	depends on X86_64
+	select COMPAT_BINFMT_ELF
 	help
 	  Include code to run 32-bit programs under a 64-bit kernel. You should
 	  likely turn this on, unless you're 100% sure that you don't have any
diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index 93a6fda65f49..52d0ccfcf6ea 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -2,8 +2,7 @@
 # Makefile for the ia32 kernel emulation subsystem.
 #
 
-obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o \
-	ia32_binfmt.o
+obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o
 
 sysv-$(CONFIG_SYSVIPC) := ipc32.o
 obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index e0feb66a2408..348f1341e1c8 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -377,6 +377,39 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack)
 
 __initcall(sysenter_setup);
 
+#ifdef CONFIG_SYSCTL
+/* Register vsyscall32 into the ABI table */
+#include <linux/sysctl.h>
+
+static ctl_table abi_table2[] = {
+	{
+		.procname	= "vsyscall32",
+		.data		= &sysctl_vsyscall32,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec
+	},
+	{}
+};
+
+static ctl_table abi_root_table2[] = {
+	{
+		.ctl_name = CTL_ABI,
+		.procname = "abi",
+		.mode = 0555,
+		.child = abi_table2
+	},
+	{}
+};
+
+static __init int ia32_binfmt_init(void)
+{
+	register_sysctl_table(abi_root_table2);
+	return 0;
+}
+__initcall(ia32_binfmt_init);
+#endif
+
 #else  /* CONFIG_X86_32 */
 
 const char *arch_vma_name(struct vm_area_struct *vma)
diff --git a/include/asm-x86/elf.h b/include/asm-x86/elf.h
index d6bf7421d7b0..dab4744f9586 100644
--- a/include/asm-x86/elf.h
+++ b/include/asm-x86/elf.h
@@ -73,6 +73,9 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
 #endif
 
 #ifdef __KERNEL__
+#include <asm/vdso.h>
+
+extern unsigned int vdso_enabled;
 
 /*
  * This is used to ensure we don't load something for the wrong architecture.
@@ -84,7 +87,6 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
 #include <asm/processor.h>
 #include <asm/system.h>		/* for savesegment */
 #include <asm/desc.h>
-#include <asm/vdso.h>
 
 #define elf_check_arch(x)	elf_check_arch_ia32(x)
 
@@ -106,7 +108,6 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
 
 #define ELF_PLATFORM	(utsname()->machine)
 #define set_personality_64bit()	do { } while (0)
-extern unsigned int vdso_enabled;
 
 #else /* CONFIG_X86_32 */
 
@@ -118,29 +119,57 @@ extern unsigned int vdso_enabled;
 #define elf_check_arch(x) \
 	((x)->e_machine == EM_X86_64)
 
+#define compat_elf_check_arch(x)	elf_check_arch_ia32(x)
+
+static inline void start_ia32_thread(struct pt_regs *regs, u32 ip, u32 sp)
+{
+	asm volatile("movl %0,%%fs" :: "r" (0));
+	asm volatile("movl %0,%%es; movl %0,%%ds" : : "r" (__USER32_DS));
+	load_gs_index(0);
+	regs->ip = ip;
+	regs->sp = sp;
+	regs->flags = X86_EFLAGS_IF;
+	regs->cs = __USER32_CS;
+	regs->ss = __USER32_DS;
+}
+
+static inline void elf_common_init(struct thread_struct *t,
+				   struct pt_regs *regs, const u16 ds)
+{
+	regs->ax = regs->bx = regs->cx = regs->dx = 0;
+	regs->si = regs->di = regs->bp = 0;
+	regs->r8 = regs->r9 = regs->r10 = regs->r11 = 0;
+	regs->r12 = regs->r13 = regs->r14 = regs->r15 = 0;
+	t->fs = t->gs = 0;
+	t->fsindex = t->gsindex = 0;
+	t->ds = t->es = ds;
+}
+
 #define ELF_PLAT_INIT(_r, load_addr)	do {		  \
-	struct task_struct *cur = current;		  \
-	(_r)->bx = 0; (_r)->cx = 0; (_r)->dx = 0;	  \
-	(_r)->si = 0; (_r)->di = 0; (_r)->bp = 0;	  \
-	(_r)->ax = 0;					  \
-	(_r)->r8 = 0;					  \
-	(_r)->r9 = 0;					  \
-	(_r)->r10 = 0;					  \
-	(_r)->r11 = 0;					  \
-	(_r)->r12 = 0;					  \
-	(_r)->r13 = 0;					  \
-	(_r)->r14 = 0;					  \
-	(_r)->r15 = 0;					  \
-	cur->thread.fs = 0; cur->thread.gs = 0;		  \
-	cur->thread.fsindex = 0; cur->thread.gsindex = 0; \
-	cur->thread.ds = 0; cur->thread.es = 0;		  \
+	elf_common_init(&current->thread, _r, 0);	  \
 	clear_thread_flag(TIF_IA32);			  \
 } while (0)
 
+#define	COMPAT_ELF_PLAT_INIT(regs, load_addr)	\
+	elf_common_init(&current->thread, regs, __USER_DS)
+#define	compat_start_thread(regs, ip, sp)	do {		\
+		start_ia32_thread(regs, ip, sp);		\
+		set_fs(USER_DS);				\
+	} while (0)
+#define COMPAT_SET_PERSONALITY(ex, ibcs2)	do {		\
+		if (test_thread_flag(TIF_IA32))			\
+			clear_thread_flag(TIF_ABI_PENDING);	\
+		else						\
+			set_thread_flag(TIF_ABI_PENDING);	\
+		current->personality |= force_personality32;	\
+	} while (0)
+#define COMPAT_ELF_PLATFORM			("i686")
+
 /* I'm not sure if we can use '-' here */
 #define ELF_PLATFORM       ("x86_64")
 extern void set_personality_64bit(void);
-extern int vdso_enabled;
+extern unsigned int sysctl_vsyscall32;
+extern int force_personality32;
 
 #endif /* !CONFIG_X86_32 */
 
@@ -179,17 +208,19 @@ extern int vdso_enabled;
 
 struct task_struct;
 
+#define	ARCH_DLINFO_IA32(vdso_enabled) \
+do if (vdso_enabled) {							\
+		NEW_AUX_ENT(AT_SYSINFO,	VDSO_ENTRY);			\
+		NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_CURRENT_BASE);	\
+} while (0)
+
 #ifdef CONFIG_X86_32
 
 #define VDSO_HIGH_BASE		(__fix_to_virt(FIX_VDSO))
 
-/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
+#define ARCH_DLINFO		ARCH_DLINFO_IA32(vdso_enabled)
 
-#define ARCH_DLINFO \
-do if (vdso_enabled) {							\
-		NEW_AUX_ENT(AT_SYSINFO,	VDSO_ENTRY);			\
-		NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_CURRENT_BASE);	\
-} while (0)
+/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
 
 #else /* CONFIG_X86_32 */
 
@@ -203,6 +234,12 @@ do if (vdso_enabled) {						\
 	NEW_AUX_ENT(AT_SYSINFO_EHDR,(unsigned long)current->mm->context.vdso);\
 } while (0)
 
+#define AT_SYSINFO		32
+
+#define COMPAT_ARCH_DLINFO	ARCH_DLINFO_IA32(sysctl_vsyscall32)
+
+#define COMPAT_ELF_ET_DYN_BASE	(TASK_UNMAPPED_BASE + 0x1000000)
+
 #endif /* !CONFIG_X86_32 */
 
 #define VDSO_CURRENT_BASE	((unsigned long)current->mm->context.vdso)
@@ -216,6 +253,9 @@ struct linux_binprm;
 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
 				       int executable_stack);
 
+extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
+#define compat_arch_setup_additional_pages	syscall32_setup_pages
+
 extern unsigned long arch_randomize_brk(struct mm_struct *mm);
 #define arch_randomize_brk arch_randomize_brk
 
-- 
cgit v1.2.3-59-g8ed1b


From a06b24e8bf03f8677f81e0f5eb03544b60fe250f Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:56 +0100
Subject: x86: x86 ia32_binfmt removal

Remove the old ia32_binfmt.c file, which is no longer used.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ia32_binfmt.c | 284 --------------------------------------------
 1 file changed, 284 deletions(-)
 delete mode 100644 arch/x86/ia32/ia32_binfmt.c

(limited to 'arch')

diff --git a/arch/x86/ia32/ia32_binfmt.c b/arch/x86/ia32/ia32_binfmt.c
deleted file mode 100644
index 806135c3f975..000000000000
--- a/arch/x86/ia32/ia32_binfmt.c
+++ /dev/null
@@ -1,284 +0,0 @@
-/* 
- * Written 2000,2002 by Andi Kleen. 
- * 
- * Loosely based on the sparc64 and IA64 32bit emulation loaders.
- * This tricks binfmt_elf.c into loading 32bit binaries using lots 
- * of ugly preprocessor tricks. Talk about very very poor man's inheritance.
- */ 
-
-#include <linux/types.h>
-#include <linux/stddef.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/compat.h>
-#include <linux/string.h>
-#include <linux/binfmts.h>
-#include <linux/mm.h>
-#include <linux/security.h>
-#include <linux/elfcore-compat.h>
-
-#include <asm/segment.h> 
-#include <asm/ptrace.h>
-#include <asm/processor.h>
-#include <asm/user32.h>
-#include <asm/sigcontext32.h>
-#include <asm/fpu32.h>
-#include <asm/i387.h>
-#include <asm/uaccess.h>
-#include <asm/ia32.h>
-#include <asm/vdso.h>
-
-#undef	ELF_ARCH
-#undef	ELF_CLASS
-#define ELF_CLASS	ELFCLASS32
-#define ELF_ARCH	EM_386
-
-#undef	elfhdr
-#undef	elf_phdr
-#undef	elf_note
-#undef	elf_addr_t
-#define elfhdr		elf32_hdr
-#define elf_phdr	elf32_phdr
-#define elf_note	elf32_note
-#define elf_addr_t	Elf32_Off
-
-#define ELF_NAME "elf/i386"
-
-#define AT_SYSINFO 32
-#define AT_SYSINFO_EHDR		33
-
-extern int sysctl_vsyscall32;
-
-#undef ARCH_DLINFO
-#define ARCH_DLINFO do {  \
-	if (sysctl_vsyscall32) { \
-		NEW_AUX_ENT(AT_SYSINFO, (u32)VDSO_ENTRY);		\
-		NEW_AUX_ENT(AT_SYSINFO_EHDR, (u32)VDSO_CURRENT_BASE);	\
-	}	\
-} while(0)
-
-struct file;
-
-#define IA32_EMULATOR 1
-
-#undef ELF_ET_DYN_BASE
-
-#define ELF_ET_DYN_BASE		(TASK_UNMAPPED_BASE + 0x1000000)
-
-#define jiffies_to_timeval(a,b) do { (b)->tv_usec = 0; (b)->tv_sec = (a)/HZ; }while(0)
-
-#define _GET_SEG(x) \
-	({ __u32 seg; asm("movl %%" __stringify(x) ",%0" : "=r"(seg)); seg; })
-
-/* Assumes current==process to be dumped */
-#undef	ELF_CORE_COPY_REGS
-#define ELF_CORE_COPY_REGS(pr_reg, regs)       		\
-	pr_reg[0] = regs->bx;				\
-	pr_reg[1] = regs->cx;				\
-	pr_reg[2] = regs->dx;				\
-	pr_reg[3] = regs->si;				\
-	pr_reg[4] = regs->di;				\
-	pr_reg[5] = regs->bp;				\
-	pr_reg[6] = regs->ax;				\
-	pr_reg[7] = _GET_SEG(ds);   			\
-	pr_reg[8] = _GET_SEG(es);			\
-	pr_reg[9] = _GET_SEG(fs);			\
-	pr_reg[10] = _GET_SEG(gs);			\
-	pr_reg[11] = regs->orig_ax;			\
-	pr_reg[12] = regs->ip;				\
-	pr_reg[13] = regs->cs;				\
-	pr_reg[14] = regs->flags;			\
-	pr_reg[15] = regs->sp;				\
-	pr_reg[16] = regs->ss;
-
-
-#define elf_prstatus	compat_elf_prstatus
-#define elf_prpsinfo	compat_elf_prpsinfo
-#define elf_fpregset_t	struct user_i387_ia32_struct
-#define	elf_fpxregset_t	struct user32_fxsr_struct
-#define user		user32
-
-#undef elf_read_implies_exec
-#define elf_read_implies_exec(ex, executable_stack)     (executable_stack != EXSTACK_DISABLE_X)
-
-#define elf_core_copy_regs		elf32_core_copy_regs
-static inline void elf32_core_copy_regs(compat_elf_gregset_t *elfregs,
-					struct pt_regs *regs)
-{
-	ELF_CORE_COPY_REGS((&elfregs->ebx), regs)
-}
-
-#define elf_core_copy_task_regs		elf32_core_copy_task_regs
-static inline int elf32_core_copy_task_regs(struct task_struct *t,
-					    compat_elf_gregset_t* elfregs)
-{	
-	struct pt_regs *pp = task_pt_regs(t);
-	ELF_CORE_COPY_REGS((&elfregs->ebx), pp);
-	/* fix wrong segments */ 
-	elfregs->ds = t->thread.ds;
-	elfregs->fs = t->thread.fsindex;
-	elfregs->gs = t->thread.gsindex;
-	elfregs->es = t->thread.es;
-	return 1; 
-}
-
-#define elf_core_copy_task_fpregs	elf32_core_copy_task_fpregs
-static inline int 
-elf32_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs,
-			    elf_fpregset_t *fpu)
-{
-	struct _fpstate_ia32 *fpstate = (void*)fpu; 
-	mm_segment_t oldfs = get_fs();
-
-	if (!tsk_used_math(tsk))
-		return 0;
-	if (!regs)
-		regs = task_pt_regs(tsk);
-	if (tsk == current)
-		unlazy_fpu(tsk);
-	set_fs(KERNEL_DS); 
-	save_i387_ia32(tsk, fpstate, regs, 1);
-	/* Correct for i386 bug. It puts the fop into the upper 16bits of 
-	   the tag word (like FXSAVE), not into the fcs*/ 
-	fpstate->cssel |= fpstate->tag & 0xffff0000; 
-	set_fs(oldfs); 
-	return 1; 
-}
-
-#define ELF_CORE_COPY_XFPREGS 1
-#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
-#define elf_core_copy_task_xfpregs	elf32_core_copy_task_xfpregs
-static inline int 
-elf32_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
-{
-	struct pt_regs *regs = task_pt_regs(t);
-	if (!tsk_used_math(t))
-		return 0;
-	if (t == current)
-		unlazy_fpu(t); 
-	memcpy(xfpu, &t->thread.i387.fxsave, sizeof(elf_fpxregset_t));
-	xfpu->fcs = regs->cs; 
-	xfpu->fos = t->thread.ds; /* right? */ 
-	return 1;
-}
-
-#undef elf_check_arch
-#define elf_check_arch(x) \
-	((x)->e_machine == EM_386)
-
-extern int force_personality32;
-
-#undef	ELF_EXEC_PAGESIZE
-#undef	ELF_HWCAP
-#undef	ELF_PLATFORM
-#undef	SET_PERSONALITY
-#define ELF_EXEC_PAGESIZE PAGE_SIZE
-#define ELF_HWCAP (boot_cpu_data.x86_capability[0])
-#define ELF_PLATFORM  ("i686")
-#define SET_PERSONALITY(ex, ibcs2)			\
-do {							\
-	unsigned long new_flags = 0;				\
-	if ((ex).e_ident[EI_CLASS] == ELFCLASS32)		\
-		new_flags = _TIF_IA32;				\
-	if ((current_thread_info()->flags & _TIF_IA32)		\
-	    != new_flags)					\
-		set_thread_flag(TIF_ABI_PENDING);		\
-	else							\
-		clear_thread_flag(TIF_ABI_PENDING);		\
-	/* XXX This overwrites the user set personality */	\
-	current->personality |= force_personality32;		\
-} while (0)
-
-/* Override some function names */
-#define elf_format			elf32_format
-
-#define init_elf_binfmt			init_elf32_binfmt
-#define exit_elf_binfmt			exit_elf32_binfmt
-
-#define load_elf_binary load_elf32_binary
-
-#undef	ELF_PLAT_INIT
-#define ELF_PLAT_INIT(r, load_addr)	elf32_init(r)
-
-#undef start_thread
-#define start_thread(regs,new_rip,new_rsp) do { \
-	asm volatile("movl %0,%%fs" :: "r" (0)); \
-	asm volatile("movl %0,%%es; movl %0,%%ds": :"r" (__USER32_DS)); \
-	load_gs_index(0); \
-	(regs)->ip = (new_rip); \
-	(regs)->sp = (new_rsp); \
-	(regs)->flags = X86_EFLAGS_IF; \
-	(regs)->cs = __USER32_CS; \
-	(regs)->ss = __USER32_DS; \
-	set_fs(USER_DS); \
-} while(0) 
-
-
-#include <linux/module.h>
-
-MODULE_DESCRIPTION("Binary format loader for compatibility with IA32 ELF binaries."); 
-MODULE_AUTHOR("Eric Youngdale, Andi Kleen");
-
-#undef MODULE_DESCRIPTION
-#undef MODULE_AUTHOR
-
-static void elf32_init(struct pt_regs *);
-
-#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
-#define arch_setup_additional_pages syscall32_setup_pages
-extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
-
-#include "../../../fs/binfmt_elf.c" 
-
-static void elf32_init(struct pt_regs *regs)
-{
-	struct task_struct *me = current; 
-	regs->di = 0;
-	regs->si = 0;
-	regs->dx = 0;
-	regs->cx = 0;
-	regs->ax = 0;
-	regs->bx = 0;
-	regs->bp = 0;
-	regs->r8 = regs->r9 = regs->r10 = regs->r11 = regs->r12 =
-		regs->r13 = regs->r14 = regs->r15 = 0; 
-    me->thread.fs = 0; 
-	me->thread.gs = 0;
-	me->thread.fsindex = 0; 
-	me->thread.gsindex = 0;
-    me->thread.ds = __USER_DS; 
-	me->thread.es = __USER_DS;
-}
-
-#ifdef CONFIG_SYSCTL
-/* Register vsyscall32 into the ABI table */
-#include <linux/sysctl.h>
-
-static ctl_table abi_table2[] = {
-	{
-		.procname	= "vsyscall32",
-		.data		= &sysctl_vsyscall32,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= proc_dointvec
-	},
-	{}
-};
-
-static ctl_table abi_root_table2[] = {
-	{
-		.ctl_name = CTL_ABI,
-		.procname = "abi",
-		.mode = 0555,
-		.child = abi_table2
-	},
-	{}
-};
-
-static __init int ia32_binfmt_init(void)
-{ 
-	register_sysctl_table(abi_root_table2);
-	return 0;
-}
-__initcall(ia32_binfmt_init);
-#endif
-- 
cgit v1.2.3-59-g8ed1b


From bb61682b3f31dec7d058cae2f6edd2275248a704 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:56 +0100
Subject: x86: x86 core dump TLS

This makes ELF core dumps of 32-bit processes include a new
note type NT_386_TLS (0x200) giving the contents of the TLS
slots in struct user_desc format.  This lets post mortem
examination figure out what the segment registers mean like
the debugger does with get_thread_area on a live process.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 1 +
 include/linux/elf.h      | 1 +
 2 files changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index f8b89059e6ed..e6a680c7daf7 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -1313,6 +1313,7 @@ static const struct user_regset x86_32_regsets[] = {
 		.active = xfpregs_active, .get = xfpregs_get, .set = xfpregs_set
 	},
 	[REGSET_TLS] = {
+		.core_note_type = NT_386_TLS,
 		.n = GDT_ENTRY_TLS_ENTRIES, .bias = GDT_ENTRY_TLS_MIN,
 		.size = sizeof(struct user_desc),
 		.align = sizeof(struct user_desc),
diff --git a/include/linux/elf.h b/include/linux/elf.h
index 576e83bd6d88..7ceb24d87c1a 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -355,6 +355,7 @@ typedef struct elf64_shdr {
 #define NT_AUXV		6
 #define NT_PRXFPREG     0x46e62b7f      /* copied from gdb5.1/include/elf/common.h */
 #define NT_PPC_VMX	0x100		/* PowerPC Altivec/VMX registers */
+#define NT_386_TLS	0x200		/* i386 TLS slots (struct user_desc) */
 
 
 /* Note header in a PT_NOTE section */
-- 
cgit v1.2.3-59-g8ed1b


From fdadd54db5e9f05e673eb08746bf2bea460d9f0d Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:56 +0100
Subject: x86: x86 ptrace generic requests

This removes duplicated code by calling the generic ptrace_request and
compat_ptrace_request functions for the things they already handle.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 37 +------------------------------------
 1 file changed, 1 insertion(+), 36 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index e6a680c7daf7..3e34b14e8846 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -760,12 +760,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	unsigned long __user *datap = (unsigned long __user *)data;
 
 	switch (request) {
-	/* when I and D space are separate, these will need to be fixed. */
-	case PTRACE_PEEKTEXT: /* read word at location addr. */
-	case PTRACE_PEEKDATA:
-		ret = generic_ptrace_peekdata(child, addr, data);
-		break;
-
 	/* read the word at location addr in the USER area. */
 	case PTRACE_PEEKUSR: {
 		unsigned long tmp;
@@ -787,12 +781,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		break;
 	}
 
-	/* when I and D space are separate, this will have to be fixed. */
-	case PTRACE_POKETEXT: /* write the word at location addr. */
-	case PTRACE_POKEDATA:
-		ret = generic_ptrace_pokedata(child, addr, data);
-		break;
-
 	case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
 		ret = -EIO;
 		if ((addr & (sizeof(data) - 1)) || addr < 0 ||
@@ -1183,24 +1171,6 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 	childregs = task_pt_regs(child);
 
 	switch (request) {
-	case PTRACE_PEEKDATA:
-	case PTRACE_PEEKTEXT:
-		ret = 0;
-		if (access_process_vm(child, addr, &val, sizeof(u32), 0) !=
-		    sizeof(u32))
-			ret = -EIO;
-		else
-			ret = put_user(val, (unsigned int __user *)datap);
-		break;
-
-	case PTRACE_POKEDATA:
-	case PTRACE_POKETEXT:
-		ret = 0;
-		if (access_process_vm(child, addr, &data, sizeof(u32), 1) !=
-		    sizeof(u32))
-			ret = -EIO;
-		break;
-
 	case PTRACE_PEEKUSR:
 		ret = getreg32(child, addr, &val);
 		if (ret == 0)
@@ -1246,13 +1216,8 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 					     sizeof(struct user32_fxsr_struct),
 					     datap);
 
-	case PTRACE_GETEVENTMSG:
-		ret = put_user(child->ptrace_message,
-			       (unsigned int __user *)compat_ptr(data));
-		break;
-
 	default:
-		BUG();
+		return compat_ptrace_request(child, request, addr, data);
 	}
 
  out:
-- 
cgit v1.2.3-59-g8ed1b


From 9f8daccaa05c14e5643bdd4faf5aed9cc8e6f11e Mon Sep 17 00:00:00 2001
From: Gary Hade <garyhade@us.ibm.com>
Date: Wed, 30 Jan 2008 13:31:59 +0100
Subject: PCI: remove default PCI expansion ROM memory allocation

increasing number of PCI slots in large multi-node systems.  The kernel
currently attempts by default to allocate memory for all PCI expansion
ROMs so there has also been an increasing number of PCI memory
allocation failures seen on these systems.  This occurs because the BIOS
either (1) provides insufficient PCI memory resource for all the
expansion ROMs or (2) provides adequate PCI memory resource for
expansion ROMs but provides the space in kernel unexpected BIOS assigned
P2P non-prefetch windows.

The resulting PCI memory allocation failures may be benign when related
to memory requests for expansion ROMs themselves but in some cases they
can occur when attempting to allocate space for more critical BARs.
This can happen when a successful expansion ROM allocation request
consumes memory resource that was intended for a non-ROM BAR.  We have
seen this happen during PCI hotplug of an adapter that contains a P2P
bridge where successful memory allocation for an expansion ROM BAR on
device behind the bridge consumed memory that was intended for a non-ROM
BAR on the P2P bridge.  In all cases the allocation failure messages can
be very confusing for users.

This patch addresses the issue by changing the kernel default behavior
so that expansion ROM memory allocations are no longer attempted by
default when the BIOS has not assigned a specific address range to the
expansion ROM BAR.  This was done by changing the 'pci=rom' boot option
behavior for BIOS unassigned expansion ROMs to actually match it's
current kernel-parameters.txt description which already implies "off" by
default. Behavior for BIOS assigned expansion ROMs implemented in
pcibios_assign_resources() [arch/x86/pci/i386.c] is unchanged.

Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jan Beulich <jbeulich@novell.com>
Acked-by: "Jun'ichi Nomura" <j-nomura@ce.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/pci/common.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 862746390666..52deabc72a6f 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -109,6 +109,19 @@ static void __devinit pcibios_fixup_ghosts(struct pci_bus *b)
 	}
 }
 
+static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
+{
+	struct resource *rom_r = &dev->resource[PCI_ROM_RESOURCE];
+
+	if (rom_r->parent)
+		return;
+	if (rom_r->start)
+		/* we deal with BIOS assigned ROM later */
+		return;
+	if (!(pci_probe & PCI_ASSIGN_ROMS))
+		rom_r->start = rom_r->end = rom_r->flags = 0;
+}
+
 /*
  *  Called after each bus is probed, but before its children
  *  are examined.
@@ -116,8 +129,12 @@ static void __devinit pcibios_fixup_ghosts(struct pci_bus *b)
 
 void __devinit  pcibios_fixup_bus(struct pci_bus *b)
 {
+	struct pci_dev *dev;
+
 	pcibios_fixup_ghosts(b);
 	pci_read_bridge_bases(b);
+	list_for_each_entry(dev, &b->devices, bus_list)
+		pcibios_fixup_device_resources(dev);
 }
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From 7d409d6057c7244f8757ce15245f6df27271be0c Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:32:00 +0100
Subject: x86: add some pirq debugging

we use a few static mapping rules in our pirq routing functions,
and for example regression f3ac84324fd94 was due to the pirq
being out of range of the remapping array. Put in a few
WARN_ON_ONCE() lines so that we get notified about any such
out-of-bound incidents.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/pci/irq.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 88d8f5c0ecb5..ee524ca5f8c0 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -200,6 +200,7 @@ static int pirq_ali_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
 {
 	static const unsigned char irqmap[16] = { 0, 9, 3, 10, 4, 5, 7, 6, 1, 11, 0, 12, 0, 14, 0, 15 };
 
+	WARN_ON_ONCE(pirq >= 16);
 	return irqmap[read_config_nybble(router, 0x48, pirq-1)];
 }
 
@@ -207,7 +208,8 @@ static int pirq_ali_set(struct pci_dev *router, struct pci_dev *dev, int pirq, i
 {
 	static const unsigned char irqmap[16] = { 0, 8, 0, 2, 4, 5, 7, 6, 0, 1, 3, 9, 11, 0, 13, 15 };
 	unsigned int val = irqmap[irq];
-		
+
+	WARN_ON_ONCE(pirq >= 16);
 	if (val) {
 		write_config_nybble(router, 0x48, pirq-1, val);
 		return 1;
@@ -257,12 +259,16 @@ static int pirq_via_set(struct pci_dev *router, struct pci_dev *dev, int pirq, i
 static int pirq_via586_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
 {
 	static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 };
+
+	WARN_ON_ONCE(pirq >= 5);
 	return read_config_nybble(router, 0x55, pirqmap[pirq-1]);
 }
 
 static int pirq_via586_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
 {
 	static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 };
+
+	WARN_ON_ONCE(pirq >= 5);
 	write_config_nybble(router, 0x55, pirqmap[pirq-1], irq);
 	return 1;
 }
@@ -275,12 +281,16 @@ static int pirq_via586_set(struct pci_dev *router, struct pci_dev *dev, int pirq
 static int pirq_ite_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
 {
 	static const unsigned char pirqmap[4] = { 1, 0, 2, 3 };
+
+	WARN_ON_ONCE(pirq >= 4);
 	return read_config_nybble(router,0x43, pirqmap[pirq-1]);
 }
 
 static int pirq_ite_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
 {
 	static const unsigned char pirqmap[4] = { 1, 0, 2, 3 };
+
+	WARN_ON_ONCE(pirq >= 4);
 	write_config_nybble(router, 0x43, pirqmap[pirq-1], irq);
 	return 1;
 }
@@ -419,6 +429,7 @@ static int pirq_sis_set(struct pci_dev *router, struct pci_dev *dev, int pirq, i
 
 static int pirq_vlsi_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
 {
+	WARN_ON_ONCE(pirq >= 9);
 	if (pirq > 8) {
 		printk(KERN_INFO "VLSI router pirq escape (%d)\n", pirq);
 		return 0;
@@ -428,6 +439,7 @@ static int pirq_vlsi_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
 
 static int pirq_vlsi_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
 {
+	WARN_ON_ONCE(pirq >= 9);
 	if (pirq > 8) {
 		printk(KERN_INFO "VLSI router pirq escape (%d)\n", pirq);
 		return 0;
-- 
cgit v1.2.3-59-g8ed1b


From bde6f5f59c2b2b48a7a849c129d5b48838fe77ee Mon Sep 17 00:00:00 2001
From: Venki Pallipadi <venkatesh.pallipadi@intel.com>
Date: Wed, 30 Jan 2008 13:32:01 +0100
Subject: x86: voluntary leave_mm before entering ACPI C3

Aviod TLB flush IPIs during C3 states by voluntary leave_mm()
before entering C3.

The performance impact of TLB flush on C3 should not be significant with
respect to C3 wakeup latency. Also, CPUs tend to flush TLB in hardware while in
C3 anyways.

On a 8 logical CPU system, running make -j2, the number of tlbflush IPIs goes
down from 40 per second to ~ 0. Total number of interrupts during the run
of this workload was ~1200 per second, which makes it ~3% savings in wakeups.

There was no measurable performance or power impact however.

[ akpm@linux-foundation.org: symbol export fixes. ]

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/smp_32.c         | 3 ++-
 arch/x86/kernel/smp_64.c         | 3 ++-
 drivers/acpi/processor_idle.c    | 2 ++
 include/asm-ia64/acpi.h          | 2 ++
 include/asm-x86/acpi.h           | 3 +++
 include/asm-x86/mmu.h            | 8 ++++++++
 include/asm-x86/mmu_context_32.h | 2 --
 7 files changed, 19 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/smp_32.c b/arch/x86/kernel/smp_32.c
index 070816ac79e1..dc0cde9d16fb 100644
--- a/arch/x86/kernel/smp_32.c
+++ b/arch/x86/kernel/smp_32.c
@@ -256,13 +256,14 @@ static DEFINE_SPINLOCK(tlbstate_lock);
  * We need to reload %cr3 since the page tables may be going
  * away from under us..
  */
-void leave_mm(unsigned long cpu)
+void leave_mm(int cpu)
 {
 	if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK)
 		BUG();
 	cpu_clear(cpu, per_cpu(cpu_tlbstate, cpu).active_mm->cpu_vm_mask);
 	load_cr3(swapper_pg_dir);
 }
+EXPORT_SYMBOL_GPL(leave_mm);
 
 /*
  *
diff --git a/arch/x86/kernel/smp_64.c b/arch/x86/kernel/smp_64.c
index 02a6533e8909..2fd74b06db67 100644
--- a/arch/x86/kernel/smp_64.c
+++ b/arch/x86/kernel/smp_64.c
@@ -69,13 +69,14 @@ static DEFINE_PER_CPU(union smp_flush_state, flush_state);
  * We cannot call mmdrop() because we are in interrupt context,
  * instead update mm->cpu_vm_mask.
  */
-static inline void leave_mm(int cpu)
+void leave_mm(int cpu)
 {
 	if (read_pda(mmu_state) == TLBSTATE_OK)
 		BUG();
 	cpu_clear(cpu, read_pda(active_mm)->cpu_vm_mask);
 	load_cr3(swapper_pg_dir);
 }
+EXPORT_SYMBOL_GPL(leave_mm);
 
 /*
  *
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 2235f4e02d26..0721a8183c89 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -534,6 +534,7 @@ static void acpi_processor_idle(void)
 		break;
 
 	case ACPI_STATE_C3:
+		acpi_unlazy_tlb(smp_processor_id());
 		/*
 		 * Must be done before busmaster disable as we might
 		 * need to access HPET !
@@ -1423,6 +1424,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
 		return 0;
 	}
 
+	acpi_unlazy_tlb(smp_processor_id());
 	/*
 	 * Must be done before busmaster disable as we might need to
 	 * access HPET !
diff --git a/include/asm-ia64/acpi.h b/include/asm-ia64/acpi.h
index 81bcd5e51789..cd1cc39b5599 100644
--- a/include/asm-ia64/acpi.h
+++ b/include/asm-ia64/acpi.h
@@ -127,6 +127,8 @@ extern int __devinitdata pxm_to_nid_map[MAX_PXM_DOMAINS];
 extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
 #endif
 
+#define acpi_unlazy_tlb(x)
+
 #endif /*__KERNEL__*/
 
 #endif /*_ASM_ACPI_H*/
diff --git a/include/asm-x86/acpi.h b/include/asm-x86/acpi.h
index 2feb0c494be7..98a9ca266531 100644
--- a/include/asm-x86/acpi.h
+++ b/include/asm-x86/acpi.h
@@ -27,6 +27,7 @@
 
 #include <asm/numa.h>
 #include <asm/processor.h>
+#include <asm/mmu.h>
 
 #define COMPILER_DEPENDENT_INT64   long long
 #define COMPILER_DEPENDENT_UINT64  unsigned long long
@@ -167,4 +168,6 @@ static inline void acpi_fake_nodes(const struct bootnode *fake_nodes,
 }
 #endif
 
+#define acpi_unlazy_tlb(x)	leave_mm(x)
+
 #endif /*__X86_ASM_ACPI_H*/
diff --git a/include/asm-x86/mmu.h b/include/asm-x86/mmu.h
index 3f922c8e1c88..efa962c38897 100644
--- a/include/asm-x86/mmu.h
+++ b/include/asm-x86/mmu.h
@@ -20,4 +20,12 @@ typedef struct {
 	void *vdso;
 } mm_context_t;
 
+#ifdef CONFIG_SMP
+void leave_mm(int cpu);
+#else
+static inline void leave_mm(int cpu)
+{
+}
+#endif
+
 #endif /* _ASM_X86_MMU_H */
diff --git a/include/asm-x86/mmu_context_32.h b/include/asm-x86/mmu_context_32.h
index 7eb0b0b1fb3c..8198d1cca1f3 100644
--- a/include/asm-x86/mmu_context_32.h
+++ b/include/asm-x86/mmu_context_32.h
@@ -32,8 +32,6 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
 #endif
 }
 
-void leave_mm(unsigned long cpu);
-
 static inline void switch_mm(struct mm_struct *prev,
 			     struct mm_struct *next,
 			     struct task_struct *tsk)
-- 
cgit v1.2.3-59-g8ed1b


From ddc66df876fd33d3956f3c3acc1ae334b16eedee Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Wed, 30 Jan 2008 13:32:01 +0100
Subject: x86: fix kprobe_handler reenable preemption

Fix a preemption bug in kprobe_handler(). It has to call preempt_enable()
before returning.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 521a469acaad..f0f2b98b9e20 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -467,7 +467,8 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 				arch_disarm_kprobe(p);
 				regs->ip = (unsigned long)p->addr;
 				reset_current_kprobe();
-				return 1;
+				ret = 1;
+				goto no_kprobe;
 #endif
 			}
 			/* We have reentered the kprobe_handler(), since
-- 
cgit v1.2.3-59-g8ed1b


From 40102d4a41312ad4134c0b802ad074445ce8b17b Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:32:02 +0100
Subject: x86: add reenter_kprobe helper

[ mhiramat@redhat.com: updated it to latest x86.git ]

Factor common X86_32, X86_64 kprobe reenter logic from deeply
indented section to helper function.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@us.ibm.com>
---
 arch/x86/kernel/kprobes.c | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index f0f2b98b9e20..7dd918633c30 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -427,6 +427,20 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 	/* Replace the return addr with trampoline addr */
 	*sara = (unsigned long) &kretprobe_trampoline;
 }
+/*
+ * We have reentered the kprobe_handler(), since another probe was hit while
+ * within the handler. We save the original kprobes variables and just single
+ * step on the instruction of the new probe without calling any user handlers.
+ */
+static void __kprobes reenter_kprobe(struct kprobe *p, struct pt_regs *regs,
+				     struct kprobe_ctlblk *kcb)
+{
+	save_previous_kprobe(kcb);
+	set_current_kprobe(p, regs, kcb);
+	kprobes_inc_nmissed_count(p);
+	prepare_singlestep(p, regs);
+	kcb->kprobe_status = KPROBE_REENTER;
+}
 
 /*
  * Interrupts are disabled on entry as trap3 is an interrupt gate and they
@@ -471,17 +485,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 				goto no_kprobe;
 #endif
 			}
-			/* We have reentered the kprobe_handler(), since
-			 * another probe was hit while within the handler.
-			 * We here save the original kprobes variables and
-			 * just single step on the instruction of the new probe
-			 * without calling any user handlers.
-			 */
-			save_previous_kprobe(kcb);
-			set_current_kprobe(p, regs, kcb);
-			kprobes_inc_nmissed_count(p);
-			prepare_singlestep(p, regs);
-			kcb->kprobe_status = KPROBE_REENTER;
+			reenter_kprobe(p, regs, kcb);
 			return 1;
 		} else {
 			if (*addr != BREAKPOINT_INSTRUCTION) {
-- 
cgit v1.2.3-59-g8ed1b


From 59e87cdcd268daa85c0732e147c59e0c1bacd704 Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Wed, 30 Jan 2008 13:32:02 +0100
Subject: x86: move deeply indented code to reenter_kprobe

Move some deeply indented code related to re-entrance processing
from kprobe_handler() to reenter_kprobe().

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes.c | 46 +++++++++++++++++++++++-----------------------
 1 file changed, 23 insertions(+), 23 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 7dd918633c30..4e33329ce8a3 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -432,14 +432,32 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
  * within the handler. We save the original kprobes variables and just single
  * step on the instruction of the new probe without calling any user handlers.
  */
-static void __kprobes reenter_kprobe(struct kprobe *p, struct pt_regs *regs,
-				     struct kprobe_ctlblk *kcb)
+static int __kprobes reenter_kprobe(struct kprobe *p, struct pt_regs *regs,
+				    struct kprobe_ctlblk *kcb)
 {
+	if (kcb->kprobe_status == KPROBE_HIT_SS &&
+	    *p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
+		regs->flags &= ~X86_EFLAGS_TF;
+		regs->flags |= kcb->kprobe_saved_flags;
+		return 0;
+#ifdef CONFIG_X86_64
+	} else if (kcb->kprobe_status == KPROBE_HIT_SSDONE) {
+		/* TODO: Provide re-entrancy from post_kprobes_handler() and
+		 * avoid exception stack corruption while single-stepping on
+		 * the instruction of the new probe.
+		 */
+		arch_disarm_kprobe(p);
+		regs->ip = (unsigned long)p->addr;
+		reset_current_kprobe();
+		return 1;
+#endif
+	}
 	save_previous_kprobe(kcb);
 	set_current_kprobe(p, regs, kcb);
 	kprobes_inc_nmissed_count(p);
 	prepare_singlestep(p, regs);
 	kcb->kprobe_status = KPROBE_REENTER;
+	return 1;
 }
 
 /*
@@ -466,27 +484,9 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 	if (kprobe_running()) {
 		p = get_kprobe(addr);
 		if (p) {
-			if (kcb->kprobe_status == KPROBE_HIT_SS &&
-				*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
-				regs->flags &= ~X86_EFLAGS_TF;
-				regs->flags |= kcb->kprobe_saved_flags;
-				goto no_kprobe;
-#ifdef CONFIG_X86_64
-			} else if (kcb->kprobe_status == KPROBE_HIT_SSDONE) {
-				/* TODO: Provide re-entrancy from
-				 * post_kprobes_handler() and avoid exception
-				 * stack corruption while single-stepping on
-				 * the instruction of the new probe.
-				 */
-				arch_disarm_kprobe(p);
-				regs->ip = (unsigned long)p->addr;
-				reset_current_kprobe();
-				ret = 1;
-				goto no_kprobe;
-#endif
-			}
-			reenter_kprobe(p, regs, kcb);
-			return 1;
+			ret = reenter_kprobe(p, regs, kcb);
+			if (kcb->kprobe_status == KPROBE_REENTER)
+				return 1;
 		} else {
 			if (*addr != BREAKPOINT_INSTRUCTION) {
 			/* The breakpoint instruction was removed by
-- 
cgit v1.2.3-59-g8ed1b


From da35c37198132abebf877cca2ad3c6d9bcd84282 Mon Sep 17 00:00:00 2001
From: Markus Metzger <markus.t.metzger@intel.com>
Date: Wed, 30 Jan 2008 13:32:03 +0100
Subject: x86, ptrace: rlimit BTS buffer allocation

Check the rlimit of the tracing task for total and locked memory when allocating the BTS buffer.

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c | 149 ++++++++++++++++++++++++++++++++---------------
 1 file changed, 103 insertions(+), 46 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 3e34b14e8846..88ed1e74cee9 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -620,12 +620,80 @@ static int ptrace_bts_drain(struct task_struct *child,
 	return i;
 }
 
+static int ptrace_bts_realloc(struct task_struct *child,
+			      int size, int reduce_size)
+{
+	unsigned long rlim, vm;
+	int ret, old_size;
+
+	if (size < 0)
+		return -EINVAL;
+
+	old_size = ds_get_bts_size((void *)child->thread.ds_area_msr);
+	if (old_size < 0)
+		return old_size;
+
+	ret = ds_free((void **)&child->thread.ds_area_msr);
+	if (ret < 0)
+		goto out;
+
+	size >>= PAGE_SHIFT;
+	old_size >>= PAGE_SHIFT;
+
+	current->mm->total_vm  -= old_size;
+	current->mm->locked_vm -= old_size;
+
+	if (size == 0)
+		goto out;
+
+	rlim = current->signal->rlim[RLIMIT_AS].rlim_cur >> PAGE_SHIFT;
+	vm = current->mm->total_vm  + size;
+	if (rlim < vm) {
+		ret = -ENOMEM;
+
+		if (!reduce_size)
+			goto out;
+
+		size = rlim - current->mm->total_vm;
+		if (size <= 0)
+			goto out;
+	}
+
+	rlim = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur >> PAGE_SHIFT;
+	vm = current->mm->locked_vm  + size;
+	if (rlim < vm) {
+		ret = -ENOMEM;
+
+		if (!reduce_size)
+			goto out;
+
+		size = rlim - current->mm->locked_vm;
+		if (size <= 0)
+			goto out;
+	}
+
+	ret = ds_allocate((void **)&child->thread.ds_area_msr,
+			  size << PAGE_SHIFT);
+	if (ret < 0)
+		goto out;
+
+	current->mm->total_vm  += size;
+	current->mm->locked_vm += size;
+
+out:
+	if (child->thread.ds_area_msr)
+		set_tsk_thread_flag(child, TIF_DS_AREA_MSR);
+	else
+		clear_tsk_thread_flag(child, TIF_DS_AREA_MSR);
+
+	return ret;
+}
+
 static int ptrace_bts_config(struct task_struct *child,
 			     const struct ptrace_bts_config __user *ucfg)
 {
 	struct ptrace_bts_config cfg;
-	unsigned long debugctl_mask;
-	int bts_size, ret;
+	int bts_size, ret = 0;
 	void *ds;
 
 	if (copy_from_user(&cfg, ucfg, sizeof(cfg)))
@@ -638,59 +706,46 @@ static int ptrace_bts_config(struct task_struct *child,
 		if (bts_size < 0)
 			return bts_size;
 	}
+	cfg.size = PAGE_ALIGN(cfg.size);
 
 	if (bts_size != cfg.size) {
-		ret = ds_free((void **)&child->thread.ds_area_msr);
+		ret = ptrace_bts_realloc(child, cfg.size,
+					 cfg.flags & PTRACE_BTS_O_CUT_SIZE);
 		if (ret < 0)
-			return ret;
+			goto errout;
 
-		if (cfg.size > 0)
-			ret = ds_allocate((void **)&child->thread.ds_area_msr,
-					  cfg.size);
 		ds = (void *)child->thread.ds_area_msr;
-		if (ds)
-			set_tsk_thread_flag(child, TIF_DS_AREA_MSR);
-		else
-			clear_tsk_thread_flag(child, TIF_DS_AREA_MSR);
-
-		if (ret < 0)
-			return ret;
-
-		bts_size = ds_get_bts_size(ds);
-		if (bts_size <= 0)
-			return bts_size;
 	}
 
-	if (ds) {
-		if (cfg.flags & PTRACE_BTS_O_SIGNAL) {
-			ret = ds_set_overflow(ds, DS_O_SIGNAL);
-		} else {
-			ret = ds_set_overflow(ds, DS_O_WRAP);
-		}
-		if (ret < 0)
-			return ret;
-	}
-
-	debugctl_mask = ds_debugctl_mask();
-	if (ds && (cfg.flags & PTRACE_BTS_O_TRACE)) {
-		child->thread.debugctlmsr |= debugctl_mask;
-		set_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
-	} else {
-		/* there is no way for us to check whether we 'own'
-		 * the respective bits in the DEBUGCTL MSR, we're
-		 * about to clear */
-		child->thread.debugctlmsr &= ~debugctl_mask;
+	if (cfg.flags & PTRACE_BTS_O_SIGNAL)
+		ret = ds_set_overflow(ds, DS_O_SIGNAL);
+	else
+		ret = ds_set_overflow(ds, DS_O_WRAP);
+	if (ret < 0)
+		goto errout;
 
-		if (!child->thread.debugctlmsr)
-			clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
-	}
+	if (cfg.flags & PTRACE_BTS_O_TRACE)
+		child->thread.debugctlmsr |= ds_debugctl_mask();
+	else
+		child->thread.debugctlmsr &= ~ds_debugctl_mask();
 
-	if (ds && (cfg.flags & PTRACE_BTS_O_SCHED))
+	if (cfg.flags & PTRACE_BTS_O_SCHED)
 		set_tsk_thread_flag(child, TIF_BTS_TRACE_TS);
 	else
 		clear_tsk_thread_flag(child, TIF_BTS_TRACE_TS);
 
-	return 0;
+out:
+	if (child->thread.debugctlmsr)
+		set_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
+	else
+		clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
+
+	return ret;
+
+errout:
+	child->thread.debugctlmsr &= ~ds_debugctl_mask();
+	clear_tsk_thread_flag(child, TIF_BTS_TRACE_TS);
+	goto out;
 }
 
 static int ptrace_bts_status(struct task_struct *child,
@@ -726,7 +781,7 @@ void ptrace_bts_take_timestamp(struct task_struct *tsk,
 {
 	struct bts_struct rec = {
 		.qualifier = qualifier,
-		.variant.jiffies = jiffies
+		.variant.jiffies = jiffies_64
 	};
 
 	ptrace_bts_write_record(tsk, &rec);
@@ -743,10 +798,12 @@ void ptrace_disable(struct task_struct *child)
 #ifdef TIF_SYSCALL_EMU
 	clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
 #endif
-	ptrace_bts_config(child, /* options = */ 0);
 	if (child->thread.ds_area_msr) {
-	    ds_free((void **)&child->thread.ds_area_msr);
-	    clear_tsk_thread_flag(child, TIF_DS_AREA_MSR);
+		ptrace_bts_realloc(child, 0, 0);
+		child->thread.debugctlmsr &= ~ds_debugctl_mask();
+		if (!child->thread.debugctlmsr)
+			clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
+		clear_tsk_thread_flag(child, TIF_BTS_TRACE_TS);
 	}
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From e6ae5d9540727b0e2e5e2fbeb683c84671ed0a31 Mon Sep 17 00:00:00 2001
From: Markus Metzger <markus.t.metzger@intel.com>
Date: Wed, 30 Jan 2008 13:32:03 +0100
Subject: x86, ptrace: support 32bit-cross-64bit BTS recording

Support BTS recording of 32bit and 64bit tasks from 32bit or 64bit tasks.

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ds.c         | 91 ++++++++++++++++++++++----------------------
 arch/x86/kernel/ptrace.c     |  2 +-
 include/asm-x86/ds.h         | 10 ++---
 include/asm-x86/ptrace-abi.h |  4 +-
 4 files changed, 53 insertions(+), 54 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ds.c b/arch/x86/kernel/ds.c
index 6eb5d49a36bb..1c5ca4d18787 100644
--- a/arch/x86/kernel/ds.c
+++ b/arch/x86/kernel/ds.c
@@ -111,53 +111,53 @@ static struct ds_configuration ds_cfg;
  * Accessor functions for some DS and BTS fields using the above
  * global ptrace_bts_cfg.
  */
-static inline void *get_bts_buffer_base(char *base)
+static inline unsigned long get_bts_buffer_base(char *base)
 {
-	return *(void **)(base + ds_cfg.bts_buffer_base.offset);
+	return *(unsigned long *)(base + ds_cfg.bts_buffer_base.offset);
 }
-static inline void set_bts_buffer_base(char *base, void *value)
+static inline void set_bts_buffer_base(char *base, unsigned long value)
 {
-	(*(void **)(base + ds_cfg.bts_buffer_base.offset)) = value;
+	(*(unsigned long *)(base + ds_cfg.bts_buffer_base.offset)) = value;
 }
-static inline void *get_bts_index(char *base)
+static inline unsigned long get_bts_index(char *base)
 {
-	return *(void **)(base + ds_cfg.bts_index.offset);
+	return *(unsigned long *)(base + ds_cfg.bts_index.offset);
 }
-static inline void set_bts_index(char *base, void *value)
+static inline void set_bts_index(char *base, unsigned long value)
 {
-	(*(void **)(base + ds_cfg.bts_index.offset)) = value;
+	(*(unsigned long *)(base + ds_cfg.bts_index.offset)) = value;
 }
-static inline void *get_bts_absolute_maximum(char *base)
+static inline unsigned long get_bts_absolute_maximum(char *base)
 {
-	return *(void **)(base + ds_cfg.bts_absolute_maximum.offset);
+	return *(unsigned long *)(base + ds_cfg.bts_absolute_maximum.offset);
 }
-static inline void set_bts_absolute_maximum(char *base, void *value)
+static inline void set_bts_absolute_maximum(char *base, unsigned long value)
 {
-	(*(void **)(base + ds_cfg.bts_absolute_maximum.offset)) = value;
+	(*(unsigned long *)(base + ds_cfg.bts_absolute_maximum.offset)) = value;
 }
-static inline void *get_bts_interrupt_threshold(char *base)
+static inline unsigned long get_bts_interrupt_threshold(char *base)
 {
-	return *(void **)(base + ds_cfg.bts_interrupt_threshold.offset);
+	return *(unsigned long *)(base + ds_cfg.bts_interrupt_threshold.offset);
 }
-static inline void set_bts_interrupt_threshold(char *base, void *value)
+static inline void set_bts_interrupt_threshold(char *base, unsigned long value)
 {
-	(*(void **)(base + ds_cfg.bts_interrupt_threshold.offset)) = value;
+	(*(unsigned long *)(base + ds_cfg.bts_interrupt_threshold.offset)) = value;
 }
-static inline long get_from_ip(char *base)
+static inline unsigned long get_from_ip(char *base)
 {
-	return *(long *)(base + ds_cfg.from_ip.offset);
+	return *(unsigned long *)(base + ds_cfg.from_ip.offset);
 }
-static inline void set_from_ip(char *base, long value)
+static inline void set_from_ip(char *base, unsigned long value)
 {
-	(*(long *)(base + ds_cfg.from_ip.offset)) = value;
+	(*(unsigned long *)(base + ds_cfg.from_ip.offset)) = value;
 }
-static inline long get_to_ip(char *base)
+static inline unsigned long get_to_ip(char *base)
 {
-	return *(long *)(base + ds_cfg.to_ip.offset);
+	return *(unsigned long *)(base + ds_cfg.to_ip.offset);
 }
-static inline void set_to_ip(char *base, long value)
+static inline void set_to_ip(char *base, unsigned long value)
 {
-	(*(long *)(base + ds_cfg.to_ip.offset)) = value;
+	(*(unsigned long *)(base + ds_cfg.to_ip.offset)) = value;
 }
 static inline unsigned char get_info_type(char *base)
 {
@@ -180,7 +180,7 @@ static inline void set_info_data(char *base, unsigned long value)
 int ds_allocate(void **dsp, size_t bts_size_in_bytes)
 {
 	size_t bts_size_in_records;
-	void *bts;
+	unsigned long bts;
 	void *ds;
 
 	if (!ds_cfg.sizeof_ds || !ds_cfg.sizeof_bts)
@@ -197,7 +197,7 @@ int ds_allocate(void **dsp, size_t bts_size_in_bytes)
 	if (bts_size_in_bytes <= 0)
 		return -EINVAL;
 
-	bts = kzalloc(bts_size_in_bytes, GFP_KERNEL);
+	bts = (unsigned long)kzalloc(bts_size_in_bytes, GFP_KERNEL);
 
 	if (!bts)
 		return -ENOMEM;
@@ -205,7 +205,7 @@ int ds_allocate(void **dsp, size_t bts_size_in_bytes)
 	ds = kzalloc(ds_cfg.sizeof_ds, GFP_KERNEL);
 
 	if (!ds) {
-		kfree(bts);
+		kfree((void *)bts);
 		return -ENOMEM;
 	}
 
@@ -221,7 +221,7 @@ int ds_allocate(void **dsp, size_t bts_size_in_bytes)
 int ds_free(void **dsp)
 {
 	if (*dsp)
-		kfree(get_bts_buffer_base(*dsp));
+		kfree((void *)get_bts_buffer_base(*dsp));
 	kfree(*dsp);
 	*dsp = 0;
 
@@ -230,7 +230,7 @@ int ds_free(void **dsp)
 
 int ds_get_bts_size(void *ds)
 {
-	size_t size_in_bytes;
+	int size_in_bytes;
 
 	if (!ds_cfg.sizeof_ds || !ds_cfg.sizeof_bts)
 		return -EOPNOTSUPP;
@@ -246,7 +246,7 @@ int ds_get_bts_size(void *ds)
 
 int ds_get_bts_end(void *ds)
 {
-	size_t size_in_bytes = ds_get_bts_size(ds);
+	int size_in_bytes = ds_get_bts_size(ds);
 
 	if (size_in_bytes <= 0)
 		return size_in_bytes;
@@ -256,7 +256,7 @@ int ds_get_bts_end(void *ds)
 
 int ds_get_bts_index(void *ds)
 {
-	size_t index_offset_in_bytes;
+	int index_offset_in_bytes;
 
 	if (!ds_cfg.sizeof_ds || !ds_cfg.sizeof_bts)
 		return -EOPNOTSUPP;
@@ -288,19 +288,19 @@ int ds_get_overflow(void *ds)
 int ds_clear(void *ds)
 {
 	int bts_size = ds_get_bts_size(ds);
-	void *bts_base;
+	unsigned long bts_base;
 
 	if (bts_size <= 0)
 		return bts_size;
 
 	bts_base = get_bts_buffer_base(ds);
-	memset(bts_base, 0, bts_size);
+	memset((void *)bts_base, 0, bts_size);
 
 	set_bts_index(ds, bts_base);
 	return 0;
 }
 
-int ds_read_bts(void *ds, size_t index, struct bts_struct *out)
+int ds_read_bts(void *ds, int index, struct bts_struct *out)
 {
 	void *bts;
 
@@ -313,8 +313,7 @@ int ds_read_bts(void *ds, size_t index, struct bts_struct *out)
 	if (index >= ds_get_bts_size(ds))
 		return -EINVAL;
 
-	bts = get_bts_buffer_base(ds);
-	bts = (char *)bts + (index * ds_cfg.sizeof_bts);
+	bts = (void *)(get_bts_buffer_base(ds) + (index * ds_cfg.sizeof_bts));
 
 	memset(out, 0, sizeof(*out));
 	if (get_from_ip(bts) == BTS_ESCAPE_ADDRESS) {
@@ -326,12 +325,12 @@ int ds_read_bts(void *ds, size_t index, struct bts_struct *out)
 		out->variant.lbr.to_ip   = get_to_ip(bts);
 	}
 
-	return 0;
+	return sizeof(*out);;
 }
 
 int ds_write_bts(void *ds, const struct bts_struct *in)
 {
-	void *bts;
+	unsigned long bts;
 
 	if (!ds_cfg.sizeof_ds || !ds_cfg.sizeof_bts)
 		return -EOPNOTSUPP;
@@ -341,33 +340,33 @@ int ds_write_bts(void *ds, const struct bts_struct *in)
 
 	bts = get_bts_index(ds);
 
-	memset(bts, 0, ds_cfg.sizeof_bts);
+	memset((void *)bts, 0, ds_cfg.sizeof_bts);
 	switch (in->qualifier) {
 	case BTS_INVALID:
 		break;
 
 	case BTS_BRANCH:
-		set_from_ip(bts, in->variant.lbr.from_ip);
-		set_to_ip(bts, in->variant.lbr.to_ip);
+		set_from_ip((void *)bts, in->variant.lbr.from_ip);
+		set_to_ip((void *)bts, in->variant.lbr.to_ip);
 		break;
 
 	case BTS_TASK_ARRIVES:
 	case BTS_TASK_DEPARTS:
-		set_from_ip(bts, BTS_ESCAPE_ADDRESS);
-		set_info_type(bts, in->qualifier);
-		set_info_data(bts, in->variant.jiffies);
+		set_from_ip((void *)bts, BTS_ESCAPE_ADDRESS);
+		set_info_type((void *)bts, in->qualifier);
+		set_info_data((void *)bts, in->variant.jiffies);
 		break;
 
 	default:
 		return -EINVAL;
 	}
 
-	bts = (char *)bts + ds_cfg.sizeof_bts;
+	bts = bts + ds_cfg.sizeof_bts;
 	if (bts >= get_bts_absolute_maximum(ds))
 		bts = get_bts_buffer_base(ds);
 	set_bts_index(ds, bts);
 
-	return 0;
+	return ds_cfg.sizeof_bts;
 }
 
 unsigned long ds_debugctl_mask(void)
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 88ed1e74cee9..236528bec6eb 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -558,7 +558,7 @@ static int ptrace_bts_read_record(struct task_struct *child,
 
 	retval = ds_read_bts((void *)child->thread.ds_area_msr,
 			     bts_index, &ret);
-	if (retval)
+	if (retval < 0)
 		return retval;
 
 	if (copy_to_user(out, &ret, sizeof(ret)))
diff --git a/include/asm-x86/ds.h b/include/asm-x86/ds.h
index b84040abee68..7881368142fa 100644
--- a/include/asm-x86/ds.h
+++ b/include/asm-x86/ds.h
@@ -39,16 +39,16 @@ enum bts_qualifier {
 };
 
 struct bts_struct {
-	enum bts_qualifier qualifier;
+	u64 qualifier;
 	union {
 		/* BTS_BRANCH */
 		struct {
-			long from_ip;
-			long to_ip;
+			u64 from_ip;
+			u64 to_ip;
 		} lbr;
 		/* BTS_TASK_ARRIVES or
 		   BTS_TASK_DEPARTS */
-		unsigned long jiffies;
+		u64 jiffies;
 	} variant;
 };
 
@@ -64,7 +64,7 @@ extern int ds_get_bts_index(void *);
 extern int ds_set_overflow(void *, int);
 extern int ds_get_overflow(void *);
 extern int ds_clear(void *);
-extern int ds_read_bts(void *, size_t, struct bts_struct *);
+extern int ds_read_bts(void *, int, struct bts_struct *);
 extern int ds_write_bts(void *, const struct bts_struct *);
 extern unsigned long ds_debugctl_mask(void);
 extern void __cpuinit ds_init_intel(struct cpuinfo_x86 *c);
diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h
index cf2fe4633ee5..32fe137822bf 100644
--- a/include/asm-x86/ptrace-abi.h
+++ b/include/asm-x86/ptrace-abi.h
@@ -85,9 +85,9 @@
 */
 struct ptrace_bts_config {
 	/* requested or actual size of BTS buffer in bytes */
-	unsigned long size;
+	unsigned int size;
 	/* bitmask of below flags */
-	unsigned long flags;
+	unsigned int flags;
 };
 
 #define PTRACE_BTS_O_TRACE	0x1 /* branch trace */
-- 
cgit v1.2.3-59-g8ed1b


From cba4b65d359268c40679ca75ac92c0b93cecf6de Mon Sep 17 00:00:00 2001
From: Markus Metzger <markus.t.metzger@intel.com>
Date: Wed, 30 Jan 2008 13:32:03 +0100
Subject: x86, ptrace: add buffer size checks

Pass the buffer size for (most) ptrace commands that pass user-allocated buffers and check that size before accessing the buffer. Unfortunately, PTRACE_BTS_GET already uses all 4 parameters.
Commands that access user buffers return the number of bytes or records read or written.

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ptrace.c     | 25 +++++++++++++++++++++----
 include/asm-x86/ptrace-abi.h | 14 ++++++++------
 2 files changed, 29 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 236528bec6eb..e19a91db9b35 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -591,6 +591,7 @@ static int ptrace_bts_clear(struct task_struct *child)
 }
 
 static int ptrace_bts_drain(struct task_struct *child,
+			    long size,
 			    struct bts_struct __user *out)
 {
 	int end, i;
@@ -603,6 +604,9 @@ static int ptrace_bts_drain(struct task_struct *child,
 	if (end <= 0)
 		return end;
 
+	if (size < (end * sizeof(struct bts_struct)))
+		return -EIO;
+
 	for (i = 0; i < end; i++, out++) {
 		struct bts_struct ret;
 		int retval;
@@ -617,7 +621,7 @@ static int ptrace_bts_drain(struct task_struct *child,
 
 	ds_clear(ds);
 
-	return i;
+	return end;
 }
 
 static int ptrace_bts_realloc(struct task_struct *child,
@@ -690,15 +694,22 @@ out:
 }
 
 static int ptrace_bts_config(struct task_struct *child,
+			     long cfg_size,
 			     const struct ptrace_bts_config __user *ucfg)
 {
 	struct ptrace_bts_config cfg;
 	int bts_size, ret = 0;
 	void *ds;
 
+	if (cfg_size < sizeof(cfg))
+		return -EIO;
+
 	if (copy_from_user(&cfg, ucfg, sizeof(cfg)))
 		return -EFAULT;
 
+	if ((int)cfg.size < 0)
+		return -EINVAL;
+
 	bts_size = 0;
 	ds = (void *)child->thread.ds_area_msr;
 	if (ds) {
@@ -734,6 +745,8 @@ static int ptrace_bts_config(struct task_struct *child,
 	else
 		clear_tsk_thread_flag(child, TIF_BTS_TRACE_TS);
 
+	ret = sizeof(cfg);
+
 out:
 	if (child->thread.debugctlmsr)
 		set_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
@@ -749,11 +762,15 @@ errout:
 }
 
 static int ptrace_bts_status(struct task_struct *child,
+			     long cfg_size,
 			     struct ptrace_bts_config __user *ucfg)
 {
 	void *ds = (void *)child->thread.ds_area_msr;
 	struct ptrace_bts_config cfg;
 
+	if (cfg_size < sizeof(cfg))
+		return -EIO;
+
 	memset(&cfg, 0, sizeof(cfg));
 
 	if (ds) {
@@ -923,12 +940,12 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 	case PTRACE_BTS_CONFIG:
 		ret = ptrace_bts_config
-			(child, (struct ptrace_bts_config __user *)addr);
+			(child, data, (struct ptrace_bts_config __user *)addr);
 		break;
 
 	case PTRACE_BTS_STATUS:
 		ret = ptrace_bts_status
-			(child, (struct ptrace_bts_config __user *)addr);
+			(child, data, (struct ptrace_bts_config __user *)addr);
 		break;
 
 	case PTRACE_BTS_SIZE:
@@ -946,7 +963,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 	case PTRACE_BTS_DRAIN:
 		ret = ptrace_bts_drain
-			(child, (struct bts_struct __user *) addr);
+			(child, data, (struct bts_struct __user *) addr);
 		break;
 
 	default:
diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h
index 32fe137822bf..bcf67044754c 100644
--- a/include/asm-x86/ptrace-abi.h
+++ b/include/asm-x86/ptrace-abi.h
@@ -99,13 +99,15 @@ struct ptrace_bts_config {
 
 #define PTRACE_BTS_CONFIG	40
 /* Configure branch trace recording.
-   DATA is ignored, ADDR points to a struct ptrace_bts_config.
+   ADDR points to a struct ptrace_bts_config.
+   DATA gives the size of that buffer.
    A new buffer is allocated, iff the size changes.
+   Returns the number of bytes read.
 */
 #define PTRACE_BTS_STATUS	41
-/* Return the current configuration.
-   DATA is ignored, ADDR points to a struct ptrace_bts_config
-   that will contain the result.
+/* Return the current configuration in a struct ptrace_bts_config
+   pointed to by ADDR; DATA gives the size of that buffer.
+   Returns the number of bytes written.
 */
 #define PTRACE_BTS_SIZE		42
 /* Return the number of available BTS records.
@@ -123,8 +125,8 @@ struct ptrace_bts_config {
 */
 #define PTRACE_BTS_DRAIN	45
 /* Read all available BTS records and clear the buffer.
-   DATA is ignored. ADDR points to an array of struct bts_struct of
-   suitable size.
+   ADDR points to an array of struct bts_struct.
+   DATA gives the size of that buffer.
    BTS records are read from oldest to newest.
    Returns number of BTS records drained.
 */
-- 
cgit v1.2.3-59-g8ed1b


From b1df07bd6674a84fbd9248759dc3fa3ff5c78e5b Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:32:04 +0100
Subject: x86: change paravirt_32.c name

This patch changes paravirt_32.c to paravirt.c. The goal
is to have paravirt support in x86_64, so we do it in a common file

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile_32   |   2 +-
 arch/x86/kernel/paravirt.c    | 475 ++++++++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/paravirt_32.c | 472 -----------------------------------------
 3 files changed, 476 insertions(+), 473 deletions(-)
 create mode 100644 arch/x86/kernel/paravirt.c
 delete mode 100644 arch/x86/kernel/paravirt_32.c

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index a67198044b0d..cfb71a5deb19 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -48,7 +48,7 @@ obj-$(CONFIG_K8_NB)		+= k8.o
 obj-$(CONFIG_MGEODE_LX)		+= geode_32.o mfgpt_32.o
 
 obj-$(CONFIG_VMI)		+= vmi_32.o vmiclock_32.o
-obj-$(CONFIG_PARAVIRT)		+= paravirt_32.o
+obj-$(CONFIG_PARAVIRT)		+= paravirt.o
 obj-y				+= pcspeaker.o
 
 obj-$(CONFIG_SCx200)		+= scx200_32.o
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
new file mode 100644
index 000000000000..1a170877f46c
--- /dev/null
+++ b/arch/x86/kernel/paravirt.c
@@ -0,0 +1,475 @@
+/*  Paravirtualization interfaces
+    Copyright (C) 2006 Rusty Russell IBM Corporation
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    2007 - x86_64 support added by Glauber de Oliveira Costa, Red Hat Inc
+*/
+
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/efi.h>
+#include <linux/bcd.h>
+#include <linux/highmem.h>
+
+#include <asm/bug.h>
+#include <asm/paravirt.h>
+#include <asm/desc.h>
+#include <asm/setup.h>
+#include <asm/arch_hooks.h>
+#include <asm/time.h>
+#include <asm/irq.h>
+#include <asm/delay.h>
+#include <asm/fixmap.h>
+#include <asm/apic.h>
+#include <asm/tlbflush.h>
+#include <asm/timer.h>
+
+/* nop stub */
+void _paravirt_nop(void)
+{
+}
+
+static void __init default_banner(void)
+{
+	printk(KERN_INFO "Booting paravirtualized kernel on %s\n",
+	       pv_info.name);
+}
+
+char *memory_setup(void)
+{
+	return pv_init_ops.memory_setup();
+}
+
+/* Simple instruction patching code. */
+#define DEF_NATIVE(ops, name, code)					\
+	extern const char start_##ops##_##name[], end_##ops##_##name[];	\
+	asm("start_" #ops "_" #name ": " code "; end_" #ops "_" #name ":")
+
+DEF_NATIVE(pv_irq_ops, irq_disable, "cli");
+DEF_NATIVE(pv_irq_ops, irq_enable, "sti");
+DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf");
+DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax");
+DEF_NATIVE(pv_cpu_ops, iret, "iret");
+DEF_NATIVE(pv_cpu_ops, irq_enable_syscall_ret, "sti; sysexit");
+DEF_NATIVE(pv_mmu_ops, read_cr2, "mov %cr2, %eax");
+DEF_NATIVE(pv_mmu_ops, write_cr3, "mov %eax, %cr3");
+DEF_NATIVE(pv_mmu_ops, read_cr3, "mov %cr3, %eax");
+DEF_NATIVE(pv_cpu_ops, clts, "clts");
+DEF_NATIVE(pv_cpu_ops, read_tsc, "rdtsc");
+
+/* Undefined instruction for dealing with missing ops pointers. */
+static const unsigned char ud2a[] = { 0x0f, 0x0b };
+
+static unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
+			     unsigned long addr, unsigned len)
+{
+	const unsigned char *start, *end;
+	unsigned ret;
+
+	switch(type) {
+#define SITE(ops, x)						\
+	case PARAVIRT_PATCH(ops.x):				\
+		start = start_##ops##_##x;			\
+		end = end_##ops##_##x;				\
+		goto patch_site
+
+	SITE(pv_irq_ops, irq_disable);
+	SITE(pv_irq_ops, irq_enable);
+	SITE(pv_irq_ops, restore_fl);
+	SITE(pv_irq_ops, save_fl);
+	SITE(pv_cpu_ops, iret);
+	SITE(pv_cpu_ops, irq_enable_syscall_ret);
+	SITE(pv_mmu_ops, read_cr2);
+	SITE(pv_mmu_ops, read_cr3);
+	SITE(pv_mmu_ops, write_cr3);
+	SITE(pv_cpu_ops, clts);
+	SITE(pv_cpu_ops, read_tsc);
+#undef SITE
+
+	patch_site:
+		ret = paravirt_patch_insns(ibuf, len, start, end);
+		break;
+
+	default:
+		ret = paravirt_patch_default(type, clobbers, ibuf, addr, len);
+		break;
+	}
+
+	return ret;
+}
+
+unsigned paravirt_patch_nop(void)
+{
+	return 0;
+}
+
+unsigned paravirt_patch_ignore(unsigned len)
+{
+	return len;
+}
+
+struct branch {
+	unsigned char opcode;
+	u32 delta;
+} __attribute__((packed));
+
+unsigned paravirt_patch_call(void *insnbuf,
+			     const void *target, u16 tgt_clobbers,
+			     unsigned long addr, u16 site_clobbers,
+			     unsigned len)
+{
+	struct branch *b = insnbuf;
+	unsigned long delta = (unsigned long)target - (addr+5);
+
+	if (tgt_clobbers & ~site_clobbers)
+		return len;	/* target would clobber too much for this site */
+	if (len < 5)
+		return len;	/* call too long for patch site */
+
+	b->opcode = 0xe8; /* call */
+	b->delta = delta;
+	BUILD_BUG_ON(sizeof(*b) != 5);
+
+	return 5;
+}
+
+unsigned paravirt_patch_jmp(void *insnbuf, const void *target,
+			    unsigned long addr, unsigned len)
+{
+	struct branch *b = insnbuf;
+	unsigned long delta = (unsigned long)target - (addr+5);
+
+	if (len < 5)
+		return len;	/* call too long for patch site */
+
+	b->opcode = 0xe9;	/* jmp */
+	b->delta = delta;
+
+	return 5;
+}
+
+/* Neat trick to map patch type back to the call within the
+ * corresponding structure. */
+static void *get_call_destination(u8 type)
+{
+	struct paravirt_patch_template tmpl = {
+		.pv_init_ops = pv_init_ops,
+		.pv_time_ops = pv_time_ops,
+		.pv_cpu_ops = pv_cpu_ops,
+		.pv_irq_ops = pv_irq_ops,
+		.pv_apic_ops = pv_apic_ops,
+		.pv_mmu_ops = pv_mmu_ops,
+	};
+	return *((void **)&tmpl + type);
+}
+
+unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
+				unsigned long addr, unsigned len)
+{
+	void *opfunc = get_call_destination(type);
+	unsigned ret;
+
+	if (opfunc == NULL)
+		/* If there's no function, patch it with a ud2a (BUG) */
+		ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a));
+	else if (opfunc == paravirt_nop)
+		/* If the operation is a nop, then nop the callsite */
+		ret = paravirt_patch_nop();
+	else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) ||
+		 type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_syscall_ret))
+		/* If operation requires a jmp, then jmp */
+		ret = paravirt_patch_jmp(insnbuf, opfunc, addr, len);
+	else
+		/* Otherwise call the function; assume target could
+		   clobber any caller-save reg */
+		ret = paravirt_patch_call(insnbuf, opfunc, CLBR_ANY,
+					  addr, clobbers, len);
+
+	return ret;
+}
+
+unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
+			      const char *start, const char *end)
+{
+	unsigned insn_len = end - start;
+
+	if (insn_len > len || start == NULL)
+		insn_len = len;
+	else
+		memcpy(insnbuf, start, insn_len);
+
+	return insn_len;
+}
+
+void init_IRQ(void)
+{
+	pv_irq_ops.init_IRQ();
+}
+
+static void native_flush_tlb(void)
+{
+	__native_flush_tlb();
+}
+
+/*
+ * Global pages have to be flushed a bit differently. Not a real
+ * performance problem because this does not happen often.
+ */
+static void native_flush_tlb_global(void)
+{
+	__native_flush_tlb_global();
+}
+
+static void native_flush_tlb_single(unsigned long addr)
+{
+	__native_flush_tlb_single(addr);
+}
+
+/* These are in entry.S */
+extern void native_iret(void);
+extern void native_irq_enable_syscall_ret(void);
+
+static int __init print_banner(void)
+{
+	pv_init_ops.banner();
+	return 0;
+}
+core_initcall(print_banner);
+
+static struct resource reserve_ioports = {
+	.start = 0,
+	.end = IO_SPACE_LIMIT,
+	.name = "paravirt-ioport",
+	.flags = IORESOURCE_IO | IORESOURCE_BUSY,
+};
+
+static struct resource reserve_iomem = {
+	.start = 0,
+	.end = -1,
+	.name = "paravirt-iomem",
+	.flags = IORESOURCE_MEM | IORESOURCE_BUSY,
+};
+
+/*
+ * Reserve the whole legacy IO space to prevent any legacy drivers
+ * from wasting time probing for their hardware.  This is a fairly
+ * brute-force approach to disabling all non-virtual drivers.
+ *
+ * Note that this must be called very early to have any effect.
+ */
+int paravirt_disable_iospace(void)
+{
+	int ret;
+
+	ret = request_resource(&ioport_resource, &reserve_ioports);
+	if (ret == 0) {
+		ret = request_resource(&iomem_resource, &reserve_iomem);
+		if (ret)
+			release_resource(&reserve_ioports);
+	}
+
+	return ret;
+}
+
+static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) = PARAVIRT_LAZY_NONE;
+
+static inline void enter_lazy(enum paravirt_lazy_mode mode)
+{
+	BUG_ON(x86_read_percpu(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE);
+	BUG_ON(preemptible());
+
+	x86_write_percpu(paravirt_lazy_mode, mode);
+}
+
+void paravirt_leave_lazy(enum paravirt_lazy_mode mode)
+{
+	BUG_ON(x86_read_percpu(paravirt_lazy_mode) != mode);
+	BUG_ON(preemptible());
+
+	x86_write_percpu(paravirt_lazy_mode, PARAVIRT_LAZY_NONE);
+}
+
+void paravirt_enter_lazy_mmu(void)
+{
+	enter_lazy(PARAVIRT_LAZY_MMU);
+}
+
+void paravirt_leave_lazy_mmu(void)
+{
+	paravirt_leave_lazy(PARAVIRT_LAZY_MMU);
+}
+
+void paravirt_enter_lazy_cpu(void)
+{
+	enter_lazy(PARAVIRT_LAZY_CPU);
+}
+
+void paravirt_leave_lazy_cpu(void)
+{
+	paravirt_leave_lazy(PARAVIRT_LAZY_CPU);
+}
+
+enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
+{
+	return x86_read_percpu(paravirt_lazy_mode);
+}
+
+struct pv_info pv_info = {
+	.name = "bare hardware",
+	.paravirt_enabled = 0,
+	.kernel_rpl = 0,
+	.shared_kernel_pmd = 1,	/* Only used when CONFIG_X86_PAE is set */
+};
+
+struct pv_init_ops pv_init_ops = {
+	.patch = native_patch,
+	.banner = default_banner,
+	.arch_setup = paravirt_nop,
+	.memory_setup = machine_specific_memory_setup,
+};
+
+struct pv_time_ops pv_time_ops = {
+	.time_init = hpet_time_init,
+	.get_wallclock = native_get_wallclock,
+	.set_wallclock = native_set_wallclock,
+	.sched_clock = native_sched_clock,
+	.get_cpu_khz = native_calculate_cpu_khz,
+};
+
+struct pv_irq_ops pv_irq_ops = {
+	.init_IRQ = native_init_IRQ,
+	.save_fl = native_save_fl,
+	.restore_fl = native_restore_fl,
+	.irq_disable = native_irq_disable,
+	.irq_enable = native_irq_enable,
+	.safe_halt = native_safe_halt,
+	.halt = native_halt,
+};
+
+struct pv_cpu_ops pv_cpu_ops = {
+	.cpuid = native_cpuid,
+	.get_debugreg = native_get_debugreg,
+	.set_debugreg = native_set_debugreg,
+	.clts = native_clts,
+	.read_cr0 = native_read_cr0,
+	.write_cr0 = native_write_cr0,
+	.read_cr4 = native_read_cr4,
+	.read_cr4_safe = native_read_cr4_safe,
+	.write_cr4 = native_write_cr4,
+	.wbinvd = native_wbinvd,
+	.read_msr = native_read_msr_safe,
+	.write_msr = native_write_msr_safe,
+	.read_tsc = native_read_tsc,
+	.read_pmc = native_read_pmc,
+	.load_tr_desc = native_load_tr_desc,
+	.set_ldt = native_set_ldt,
+	.load_gdt = native_load_gdt,
+	.load_idt = native_load_idt,
+	.store_gdt = native_store_gdt,
+	.store_idt = native_store_idt,
+	.store_tr = native_store_tr,
+	.load_tls = native_load_tls,
+	.write_ldt_entry = native_write_ldt_entry,
+	.write_gdt_entry = native_write_gdt_entry,
+	.write_idt_entry = native_write_idt_entry,
+	.load_sp0 = native_load_sp0,
+
+	.irq_enable_syscall_ret = native_irq_enable_syscall_ret,
+	.iret = native_iret,
+
+	.set_iopl_mask = native_set_iopl_mask,
+	.io_delay = native_io_delay,
+
+	.lazy_mode = {
+		.enter = paravirt_nop,
+		.leave = paravirt_nop,
+	},
+};
+
+struct pv_apic_ops pv_apic_ops = {
+#ifdef CONFIG_X86_LOCAL_APIC
+	.apic_write = native_apic_write,
+	.apic_write_atomic = native_apic_write_atomic,
+	.apic_read = native_apic_read,
+	.setup_boot_clock = setup_boot_APIC_clock,
+	.setup_secondary_clock = setup_secondary_APIC_clock,
+	.startup_ipi_hook = paravirt_nop,
+#endif
+};
+
+struct pv_mmu_ops pv_mmu_ops = {
+	.pagetable_setup_start = native_pagetable_setup_start,
+	.pagetable_setup_done = native_pagetable_setup_done,
+
+	.read_cr2 = native_read_cr2,
+	.write_cr2 = native_write_cr2,
+	.read_cr3 = native_read_cr3,
+	.write_cr3 = native_write_cr3,
+
+	.flush_tlb_user = native_flush_tlb,
+	.flush_tlb_kernel = native_flush_tlb_global,
+	.flush_tlb_single = native_flush_tlb_single,
+	.flush_tlb_others = native_flush_tlb_others,
+
+	.alloc_pt = paravirt_nop,
+	.alloc_pd = paravirt_nop,
+	.alloc_pd_clone = paravirt_nop,
+	.release_pt = paravirt_nop,
+	.release_pd = paravirt_nop,
+
+	.set_pte = native_set_pte,
+	.set_pte_at = native_set_pte_at,
+	.set_pmd = native_set_pmd,
+	.pte_update = paravirt_nop,
+	.pte_update_defer = paravirt_nop,
+
+#ifdef CONFIG_HIGHPTE
+	.kmap_atomic_pte = kmap_atomic,
+#endif
+
+#ifdef CONFIG_X86_PAE
+	.set_pte_atomic = native_set_pte_atomic,
+	.set_pte_present = native_set_pte_present,
+	.set_pud = native_set_pud,
+	.pte_clear = native_pte_clear,
+	.pmd_clear = native_pmd_clear,
+
+	.pmd_val = native_pmd_val,
+	.make_pmd = native_make_pmd,
+#endif
+
+	.pte_val = native_pte_val,
+	.pgd_val = native_pgd_val,
+
+	.make_pte = native_make_pte,
+	.make_pgd = native_make_pgd,
+
+	.dup_mmap = paravirt_nop,
+	.exit_mmap = paravirt_nop,
+	.activate_mm = paravirt_nop,
+
+	.lazy_mode = {
+		.enter = paravirt_nop,
+		.leave = paravirt_nop,
+	},
+};
+
+EXPORT_SYMBOL_GPL(pv_time_ops);
+EXPORT_SYMBOL    (pv_cpu_ops);
+EXPORT_SYMBOL    (pv_mmu_ops);
+EXPORT_SYMBOL_GPL(pv_apic_ops);
+EXPORT_SYMBOL_GPL(pv_info);
+EXPORT_SYMBOL    (pv_irq_ops);
diff --git a/arch/x86/kernel/paravirt_32.c b/arch/x86/kernel/paravirt_32.c
deleted file mode 100644
index dd063fba2b21..000000000000
--- a/arch/x86/kernel/paravirt_32.c
+++ /dev/null
@@ -1,472 +0,0 @@
-/*  Paravirtualization interfaces
-    Copyright (C) 2006 Rusty Russell IBM Corporation
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-*/
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/efi.h>
-#include <linux/bcd.h>
-#include <linux/highmem.h>
-
-#include <asm/bug.h>
-#include <asm/paravirt.h>
-#include <asm/desc.h>
-#include <asm/setup.h>
-#include <asm/arch_hooks.h>
-#include <asm/time.h>
-#include <asm/irq.h>
-#include <asm/delay.h>
-#include <asm/fixmap.h>
-#include <asm/apic.h>
-#include <asm/tlbflush.h>
-#include <asm/timer.h>
-
-/* nop stub */
-void _paravirt_nop(void)
-{
-}
-
-static void __init default_banner(void)
-{
-	printk(KERN_INFO "Booting paravirtualized kernel on %s\n",
-	       pv_info.name);
-}
-
-char *memory_setup(void)
-{
-	return pv_init_ops.memory_setup();
-}
-
-/* Simple instruction patching code. */
-#define DEF_NATIVE(ops, name, code)					\
-	extern const char start_##ops##_##name[], end_##ops##_##name[];	\
-	asm("start_" #ops "_" #name ": " code "; end_" #ops "_" #name ":")
-
-DEF_NATIVE(pv_irq_ops, irq_disable, "cli");
-DEF_NATIVE(pv_irq_ops, irq_enable, "sti");
-DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf");
-DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax");
-DEF_NATIVE(pv_cpu_ops, iret, "iret");
-DEF_NATIVE(pv_cpu_ops, irq_enable_syscall_ret, "sti; sysexit");
-DEF_NATIVE(pv_mmu_ops, read_cr2, "mov %cr2, %eax");
-DEF_NATIVE(pv_mmu_ops, write_cr3, "mov %eax, %cr3");
-DEF_NATIVE(pv_mmu_ops, read_cr3, "mov %cr3, %eax");
-DEF_NATIVE(pv_cpu_ops, clts, "clts");
-DEF_NATIVE(pv_cpu_ops, read_tsc, "rdtsc");
-
-/* Undefined instruction for dealing with missing ops pointers. */
-static const unsigned char ud2a[] = { 0x0f, 0x0b };
-
-static unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
-			     unsigned long addr, unsigned len)
-{
-	const unsigned char *start, *end;
-	unsigned ret;
-
-	switch(type) {
-#define SITE(ops, x)						\
-	case PARAVIRT_PATCH(ops.x):				\
-		start = start_##ops##_##x;			\
-		end = end_##ops##_##x;				\
-		goto patch_site
-
-	SITE(pv_irq_ops, irq_disable);
-	SITE(pv_irq_ops, irq_enable);
-	SITE(pv_irq_ops, restore_fl);
-	SITE(pv_irq_ops, save_fl);
-	SITE(pv_cpu_ops, iret);
-	SITE(pv_cpu_ops, irq_enable_syscall_ret);
-	SITE(pv_mmu_ops, read_cr2);
-	SITE(pv_mmu_ops, read_cr3);
-	SITE(pv_mmu_ops, write_cr3);
-	SITE(pv_cpu_ops, clts);
-	SITE(pv_cpu_ops, read_tsc);
-#undef SITE
-
-	patch_site:
-		ret = paravirt_patch_insns(ibuf, len, start, end);
-		break;
-
-	default:
-		ret = paravirt_patch_default(type, clobbers, ibuf, addr, len);
-		break;
-	}
-
-	return ret;
-}
-
-unsigned paravirt_patch_nop(void)
-{
-	return 0;
-}
-
-unsigned paravirt_patch_ignore(unsigned len)
-{
-	return len;
-}
-
-struct branch {
-	unsigned char opcode;
-	u32 delta;
-} __attribute__((packed));
-
-unsigned paravirt_patch_call(void *insnbuf,
-			     const void *target, u16 tgt_clobbers,
-			     unsigned long addr, u16 site_clobbers,
-			     unsigned len)
-{
-	struct branch *b = insnbuf;
-	unsigned long delta = (unsigned long)target - (addr+5);
-
-	if (tgt_clobbers & ~site_clobbers)
-		return len;	/* target would clobber too much for this site */
-	if (len < 5)
-		return len;	/* call too long for patch site */
-
-	b->opcode = 0xe8; /* call */
-	b->delta = delta;
-	BUILD_BUG_ON(sizeof(*b) != 5);
-
-	return 5;
-}
-
-unsigned paravirt_patch_jmp(void *insnbuf, const void *target,
-			    unsigned long addr, unsigned len)
-{
-	struct branch *b = insnbuf;
-	unsigned long delta = (unsigned long)target - (addr+5);
-
-	if (len < 5)
-		return len;	/* call too long for patch site */
-
-	b->opcode = 0xe9;	/* jmp */
-	b->delta = delta;
-
-	return 5;
-}
-
-/* Neat trick to map patch type back to the call within the
- * corresponding structure. */
-static void *get_call_destination(u8 type)
-{
-	struct paravirt_patch_template tmpl = {
-		.pv_init_ops = pv_init_ops,
-		.pv_time_ops = pv_time_ops,
-		.pv_cpu_ops = pv_cpu_ops,
-		.pv_irq_ops = pv_irq_ops,
-		.pv_apic_ops = pv_apic_ops,
-		.pv_mmu_ops = pv_mmu_ops,
-	};
-	return *((void **)&tmpl + type);
-}
-
-unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
-				unsigned long addr, unsigned len)
-{
-	void *opfunc = get_call_destination(type);
-	unsigned ret;
-
-	if (opfunc == NULL)
-		/* If there's no function, patch it with a ud2a (BUG) */
-		ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a));
-	else if (opfunc == paravirt_nop)
-		/* If the operation is a nop, then nop the callsite */
-		ret = paravirt_patch_nop();
-	else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) ||
-		 type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_syscall_ret))
-		/* If operation requires a jmp, then jmp */
-		ret = paravirt_patch_jmp(insnbuf, opfunc, addr, len);
-	else
-		/* Otherwise call the function; assume target could
-		   clobber any caller-save reg */
-		ret = paravirt_patch_call(insnbuf, opfunc, CLBR_ANY,
-					  addr, clobbers, len);
-
-	return ret;
-}
-
-unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
-			      const char *start, const char *end)
-{
-	unsigned insn_len = end - start;
-
-	if (insn_len > len || start == NULL)
-		insn_len = len;
-	else
-		memcpy(insnbuf, start, insn_len);
-
-	return insn_len;
-}
-
-void init_IRQ(void)
-{
-	pv_irq_ops.init_IRQ();
-}
-
-static void native_flush_tlb(void)
-{
-	__native_flush_tlb();
-}
-
-/*
- * Global pages have to be flushed a bit differently. Not a real
- * performance problem because this does not happen often.
- */
-static void native_flush_tlb_global(void)
-{
-	__native_flush_tlb_global();
-}
-
-static void native_flush_tlb_single(unsigned long addr)
-{
-	__native_flush_tlb_single(addr);
-}
-
-/* These are in entry.S */
-extern void native_iret(void);
-extern void native_irq_enable_syscall_ret(void);
-
-static int __init print_banner(void)
-{
-	pv_init_ops.banner();
-	return 0;
-}
-core_initcall(print_banner);
-
-static struct resource reserve_ioports = {
-	.start = 0,
-	.end = IO_SPACE_LIMIT,
-	.name = "paravirt-ioport",
-	.flags = IORESOURCE_IO | IORESOURCE_BUSY,
-};
-
-static struct resource reserve_iomem = {
-	.start = 0,
-	.end = -1,
-	.name = "paravirt-iomem",
-	.flags = IORESOURCE_MEM | IORESOURCE_BUSY,
-};
-
-/*
- * Reserve the whole legacy IO space to prevent any legacy drivers
- * from wasting time probing for their hardware.  This is a fairly
- * brute-force approach to disabling all non-virtual drivers.
- *
- * Note that this must be called very early to have any effect.
- */
-int paravirt_disable_iospace(void)
-{
-	int ret;
-
-	ret = request_resource(&ioport_resource, &reserve_ioports);
-	if (ret == 0) {
-		ret = request_resource(&iomem_resource, &reserve_iomem);
-		if (ret)
-			release_resource(&reserve_ioports);
-	}
-
-	return ret;
-}
-
-static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) = PARAVIRT_LAZY_NONE;
-
-static inline void enter_lazy(enum paravirt_lazy_mode mode)
-{
-	BUG_ON(x86_read_percpu(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE);
-	BUG_ON(preemptible());
-
-	x86_write_percpu(paravirt_lazy_mode, mode);
-}
-
-void paravirt_leave_lazy(enum paravirt_lazy_mode mode)
-{
-	BUG_ON(x86_read_percpu(paravirt_lazy_mode) != mode);
-	BUG_ON(preemptible());
-
-	x86_write_percpu(paravirt_lazy_mode, PARAVIRT_LAZY_NONE);
-}
-
-void paravirt_enter_lazy_mmu(void)
-{
-	enter_lazy(PARAVIRT_LAZY_MMU);
-}
-
-void paravirt_leave_lazy_mmu(void)
-{
-	paravirt_leave_lazy(PARAVIRT_LAZY_MMU);
-}
-
-void paravirt_enter_lazy_cpu(void)
-{
-	enter_lazy(PARAVIRT_LAZY_CPU);
-}
-
-void paravirt_leave_lazy_cpu(void)
-{
-	paravirt_leave_lazy(PARAVIRT_LAZY_CPU);
-}
-
-enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
-{
-	return x86_read_percpu(paravirt_lazy_mode);
-}
-
-struct pv_info pv_info = {
-	.name = "bare hardware",
-	.paravirt_enabled = 0,
-	.kernel_rpl = 0,
-	.shared_kernel_pmd = 1,	/* Only used when CONFIG_X86_PAE is set */
-};
-
-struct pv_init_ops pv_init_ops = {
-	.patch = native_patch,
-	.banner = default_banner,
-	.arch_setup = paravirt_nop,
-	.memory_setup = machine_specific_memory_setup,
-};
-
-struct pv_time_ops pv_time_ops = {
-	.time_init = hpet_time_init,
-	.get_wallclock = native_get_wallclock,
-	.set_wallclock = native_set_wallclock,
-	.sched_clock = native_sched_clock,
-	.get_cpu_khz = native_calculate_cpu_khz,
-};
-
-struct pv_irq_ops pv_irq_ops = {
-	.init_IRQ = native_init_IRQ,
-	.save_fl = native_save_fl,
-	.restore_fl = native_restore_fl,
-	.irq_disable = native_irq_disable,
-	.irq_enable = native_irq_enable,
-	.safe_halt = native_safe_halt,
-	.halt = native_halt,
-};
-
-struct pv_cpu_ops pv_cpu_ops = {
-	.cpuid = native_cpuid,
-	.get_debugreg = native_get_debugreg,
-	.set_debugreg = native_set_debugreg,
-	.clts = native_clts,
-	.read_cr0 = native_read_cr0,
-	.write_cr0 = native_write_cr0,
-	.read_cr4 = native_read_cr4,
-	.read_cr4_safe = native_read_cr4_safe,
-	.write_cr4 = native_write_cr4,
-	.wbinvd = native_wbinvd,
-	.read_msr = native_read_msr_safe,
-	.write_msr = native_write_msr_safe,
-	.read_tsc = native_read_tsc,
-	.read_pmc = native_read_pmc,
-	.load_tr_desc = native_load_tr_desc,
-	.set_ldt = native_set_ldt,
-	.load_gdt = native_load_gdt,
-	.load_idt = native_load_idt,
-	.store_gdt = native_store_gdt,
-	.store_idt = native_store_idt,
-	.store_tr = native_store_tr,
-	.load_tls = native_load_tls,
-	.write_ldt_entry = native_write_ldt_entry,
-	.write_gdt_entry = native_write_gdt_entry,
-	.write_idt_entry = native_write_idt_entry,
-	.load_sp0 = native_load_sp0,
-
-	.irq_enable_syscall_ret = native_irq_enable_syscall_ret,
-	.iret = native_iret,
-
-	.set_iopl_mask = native_set_iopl_mask,
-	.io_delay = native_io_delay,
-
-	.lazy_mode = {
-		.enter = paravirt_nop,
-		.leave = paravirt_nop,
-	},
-};
-
-struct pv_apic_ops pv_apic_ops = {
-#ifdef CONFIG_X86_LOCAL_APIC
-	.apic_write = native_apic_write,
-	.apic_write_atomic = native_apic_write_atomic,
-	.apic_read = native_apic_read,
-	.setup_boot_clock = setup_boot_APIC_clock,
-	.setup_secondary_clock = setup_secondary_APIC_clock,
-	.startup_ipi_hook = paravirt_nop,
-#endif
-};
-
-struct pv_mmu_ops pv_mmu_ops = {
-	.pagetable_setup_start = native_pagetable_setup_start,
-	.pagetable_setup_done = native_pagetable_setup_done,
-
-	.read_cr2 = native_read_cr2,
-	.write_cr2 = native_write_cr2,
-	.read_cr3 = native_read_cr3,
-	.write_cr3 = native_write_cr3,
-
-	.flush_tlb_user = native_flush_tlb,
-	.flush_tlb_kernel = native_flush_tlb_global,
-	.flush_tlb_single = native_flush_tlb_single,
-	.flush_tlb_others = native_flush_tlb_others,
-
-	.alloc_pt = paravirt_nop,
-	.alloc_pd = paravirt_nop,
-	.alloc_pd_clone = paravirt_nop,
-	.release_pt = paravirt_nop,
-	.release_pd = paravirt_nop,
-
-	.set_pte = native_set_pte,
-	.set_pte_at = native_set_pte_at,
-	.set_pmd = native_set_pmd,
-	.pte_update = paravirt_nop,
-	.pte_update_defer = paravirt_nop,
-
-#ifdef CONFIG_HIGHPTE
-	.kmap_atomic_pte = kmap_atomic,
-#endif
-
-#ifdef CONFIG_X86_PAE
-	.set_pte_atomic = native_set_pte_atomic,
-	.set_pte_present = native_set_pte_present,
-	.set_pud = native_set_pud,
-	.pte_clear = native_pte_clear,
-	.pmd_clear = native_pmd_clear,
-
-	.pmd_val = native_pmd_val,
-	.make_pmd = native_make_pmd,
-#endif
-
-	.pte_val = native_pte_val,
-	.pgd_val = native_pgd_val,
-
-	.make_pte = native_make_pte,
-	.make_pgd = native_make_pgd,
-
-	.dup_mmap = paravirt_nop,
-	.exit_mmap = paravirt_nop,
-	.activate_mm = paravirt_nop,
-
-	.lazy_mode = {
-		.enter = paravirt_nop,
-		.leave = paravirt_nop,
-	},
-};
-
-EXPORT_SYMBOL_GPL(pv_time_ops);
-EXPORT_SYMBOL    (pv_cpu_ops);
-EXPORT_SYMBOL    (pv_mmu_ops);
-EXPORT_SYMBOL_GPL(pv_apic_ops);
-EXPORT_SYMBOL_GPL(pv_info);
-EXPORT_SYMBOL    (pv_irq_ops);
-- 
cgit v1.2.3-59-g8ed1b


From e5aaac443635c7c6f842f0bf8169f71f3236d574 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:32:05 +0100
Subject: x86: provide paravirtualized hook for rdtscp

This patch adds a field in pv_cpu_ops for a paravirtualized hook
for rdtscp, needed for x86_64.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/paravirt.c |  1 +
 include/asm-x86/paravirt.h | 22 ++++++++++++++++++++++
 2 files changed, 23 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 1a170877f46c..072c1a08efe6 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -374,6 +374,7 @@ struct pv_cpu_ops pv_cpu_ops = {
 	.write_msr = native_write_msr_safe,
 	.read_tsc = native_read_tsc,
 	.read_pmc = native_read_pmc,
+	.read_tscp = native_read_tscp,
 	.load_tr_desc = native_load_tr_desc,
 	.set_ldt = native_set_ldt,
 	.load_gdt = native_load_gdt,
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 66290f58e939..8f7984319c30 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -120,6 +120,7 @@ struct pv_cpu_ops {
 
 	u64 (*read_tsc)(void);
 	u64 (*read_pmc)(int counter);
+	unsigned long long (*read_tscp)(unsigned int *aux);
 
 	/* These two are jmp to, not actually called. */
 	void (*irq_enable_syscall_ret)(void);
@@ -668,6 +669,27 @@ static inline unsigned long long paravirt_read_pmc(int counter)
 	high = _l >> 32;			\
 } while(0)
 
+static inline unsigned long long paravirt_rdtscp(unsigned int *aux)
+{
+	return PVOP_CALL1(u64, pv_cpu_ops.read_tscp, aux);
+}
+
+#define rdtscp(low, high, aux)				\
+do {							\
+	int __aux;					\
+	unsigned long __val = paravirt_rdtscp(&__aux);	\
+	(low) = (u32)__val;				\
+	(high) = (u32)(__val >> 32);			\
+	(aux) = __aux;					\
+} while (0)
+
+#define rdtscpll(val, aux)				\
+do {							\
+	unsigned long __aux; 				\
+	val = paravirt_rdtscp(&__aux);			\
+	(aux) = __aux;					\
+} while (0)
+
 static inline void load_TR_desc(void)
 {
 	PVOP_VCALL0(pv_cpu_ops.load_tr_desc);
-- 
cgit v1.2.3-59-g8ed1b


From e801f864ec7e5b149bd05337800e419f408523bb Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:32:08 +0100
Subject: x86: adds paravirt hook for swapgs

This patch adds paravirt hook for swapgs operation, which is a privileged
operation in x86_64.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/paravirt.c  | 1 +
 include/asm-x86/paravirt.h  | 9 +++++++++
 include/asm-x86/processor.h | 8 ++++++++
 3 files changed, 18 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 072c1a08efe6..e7c17cc4a99e 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -390,6 +390,7 @@ struct pv_cpu_ops pv_cpu_ops = {
 
 	.irq_enable_syscall_ret = native_irq_enable_syscall_ret,
 	.iret = native_iret,
+	.swapgs = native_swapgs,
 
 	.set_iopl_mask = native_set_iopl_mask,
 	.io_delay = native_io_delay,
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 7d1c126e2249..e8fbf742d425 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -127,6 +127,8 @@ struct pv_cpu_ops {
 	void (*irq_enable_syscall_ret)(void);
 	void (*iret)(void);
 
+	void (*swapgs)(void);
+
 	struct pv_lazy_ops lazy_mode;
 };
 
@@ -1228,6 +1230,13 @@ static inline unsigned long __raw_local_irq_save(void)
 	call *pv_cpu_ops+PV_CPU_read_cr0;	\
 	pop %edx; pop %ecx
 #else
+#define SWAPGS								\
+	PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_swapgs), CLBR_NONE,	\
+		  PV_SAVE_REGS;						\
+		  call *pv_cpu_ops+PV_CPU_swapgs;			\
+		  PV_RESTORE_REGS					\
+		 )
+
 #define GET_CR2_INTO_RCX			\
 	call *pv_mmu_ops+PV_MMU_read_cr2;	\
 	movq %rax, %rcx;			\
diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index e6fa06fee72a..72740c6f1109 100644
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -435,6 +435,13 @@ static inline void native_load_sp0(struct tss_struct *tss,
 #endif
 }
 
+static inline void native_swapgs(void)
+{
+#ifdef CONFIG_X86_64
+	asm volatile("swapgs" ::: "memory");
+#endif
+}
+
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
 #else
@@ -456,6 +463,7 @@ static inline void load_sp0(struct tss_struct *tss,
 }
 
 #define set_iopl_mask native_set_iopl_mask
+#define SWAPGS	swapgs
 #endif /* CONFIG_PARAVIRT */
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From 72fe4858544292ad64600765cb78bc02298c6b1c Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:32:08 +0100
Subject: x86: replace privileged instructions with paravirt macros

The assembly code in entry_64.S issues a bunch of privileged instructions,
like cli, sti, swapgs, and others. Paravirt guests are forbidden to do so,
and we then replace them with macros that will do the right thing.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/entry_64.S | 101 ++++++++++++++++++++++++++-------------------
 1 file changed, 59 insertions(+), 42 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index e70f3881d7e4..bea8474744ff 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -50,6 +50,7 @@
 #include <asm/hw_irq.h>
 #include <asm/page.h>
 #include <asm/irqflags.h>
+#include <asm/paravirt.h>
 
 	.code64
 
@@ -57,6 +58,13 @@
 #define retint_kernel retint_restore_args
 #endif	
 
+#ifdef CONFIG_PARAVIRT
+ENTRY(native_irq_enable_syscall_ret)
+	movq	%gs:pda_oldrsp,%rsp
+	swapgs
+	sysretq
+#endif /* CONFIG_PARAVIRT */
+
 
 .macro TRACE_IRQS_IRETQ offset=ARGOFFSET
 #ifdef CONFIG_TRACE_IRQFLAGS
@@ -216,14 +224,21 @@ ENTRY(system_call)
 	CFI_DEF_CFA	rsp,PDA_STACKOFFSET
 	CFI_REGISTER	rip,rcx
 	/*CFI_REGISTER	rflags,r11*/
-	swapgs
+	SWAPGS_UNSAFE_STACK
+	/*
+	 * A hypervisor implementation might want to use a label
+	 * after the swapgs, so that it can do the swapgs
+	 * for the guest and jump here on syscall.
+	 */
+ENTRY(system_call_after_swapgs)
+
 	movq	%rsp,%gs:pda_oldrsp 
 	movq	%gs:pda_kernelstack,%rsp
 	/*
 	 * No need to follow this irqs off/on section - it's straight
 	 * and short:
 	 */
-	sti					
+	ENABLE_INTERRUPTS(CLBR_NONE)
 	SAVE_ARGS 8,1
 	movq  %rax,ORIG_RAX-ARGOFFSET(%rsp) 
 	movq  %rcx,RIP-ARGOFFSET(%rsp)
@@ -246,7 +261,7 @@ ret_from_sys_call:
 sysret_check:		
 	LOCKDEP_SYS_EXIT
 	GET_THREAD_INFO(%rcx)
-	cli
+	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	movl threadinfo_flags(%rcx),%edx
 	andl %edi,%edx
@@ -260,9 +275,7 @@ sysret_check:
 	CFI_REGISTER	rip,rcx
 	RESTORE_ARGS 0,-ARG_SKIP,1
 	/*CFI_REGISTER	rflags,r11*/
-	movq	%gs:pda_oldrsp,%rsp
-	swapgs
-	sysretq
+	ENABLE_INTERRUPTS_SYSCALL_RET
 
 	CFI_RESTORE_STATE
 	/* Handle reschedules */
@@ -271,7 +284,7 @@ sysret_careful:
 	bt $TIF_NEED_RESCHED,%edx
 	jnc sysret_signal
 	TRACE_IRQS_ON
-	sti
+	ENABLE_INTERRUPTS(CLBR_NONE)
 	pushq %rdi
 	CFI_ADJUST_CFA_OFFSET 8
 	call schedule
@@ -282,7 +295,7 @@ sysret_careful:
 	/* Handle a signal */ 
 sysret_signal:
 	TRACE_IRQS_ON
-	sti
+	ENABLE_INTERRUPTS(CLBR_NONE)
 	testl $_TIF_DO_NOTIFY_MASK,%edx
 	jz    1f
 
@@ -295,7 +308,7 @@ sysret_signal:
 1:	movl $_TIF_NEED_RESCHED,%edi
 	/* Use IRET because user could have changed frame. This
 	   works because ptregscall_common has called FIXUP_TOP_OF_STACK. */
-	cli
+	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	jmp int_with_check
 	
@@ -327,7 +340,7 @@ tracesys:
  */
 	.globl int_ret_from_sys_call
 int_ret_from_sys_call:
-	cli
+	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	testl $3,CS-ARGOFFSET(%rsp)
 	je retint_restore_args
@@ -349,20 +362,20 @@ int_careful:
 	bt $TIF_NEED_RESCHED,%edx
 	jnc  int_very_careful
 	TRACE_IRQS_ON
-	sti
+	ENABLE_INTERRUPTS(CLBR_NONE)
 	pushq %rdi
 	CFI_ADJUST_CFA_OFFSET 8
 	call schedule
 	popq %rdi
 	CFI_ADJUST_CFA_OFFSET -8
-	cli
+	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	jmp int_with_check
 
 	/* handle signals and tracing -- both require a full stack frame */
 int_very_careful:
 	TRACE_IRQS_ON
-	sti
+	ENABLE_INTERRUPTS(CLBR_NONE)
 	SAVE_REST
 	/* Check for syscall exit trace */	
 	testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP),%edx
@@ -385,7 +398,7 @@ int_signal:
 1:	movl $_TIF_NEED_RESCHED,%edi	
 int_restore_rest:
 	RESTORE_REST
-	cli
+	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	jmp int_with_check
 	CFI_ENDPROC
@@ -506,7 +519,7 @@ END(stub_rt_sigreturn)
 	CFI_DEF_CFA_REGISTER	rbp
 	testl $3,CS(%rdi)
 	je 1f
-	swapgs	
+	SWAPGS
 	/* irqcount is used to check if a CPU is already on an interrupt
 	   stack or not. While this is essentially redundant with preempt_count
 	   it is a little cheaper to use a separate counter in the PDA
@@ -527,7 +540,7 @@ ENTRY(common_interrupt)
 	interrupt do_IRQ
 	/* 0(%rsp): oldrsp-ARGOFFSET */
 ret_from_intr:
-	cli	
+	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	decl %gs:pda_irqcount
 	leaveq
@@ -556,13 +569,13 @@ retint_swapgs:		/* return to user-space */
 	/*
 	 * The iretq could re-enable interrupts:
 	 */
-	cli
+	DISABLE_INTERRUPTS(CLBR_ANY)
 	TRACE_IRQS_IRETQ
-	swapgs 
+	SWAPGS
 	jmp restore_args
 
 retint_restore_args:	/* return to kernel space */
-	cli
+	DISABLE_INTERRUPTS(CLBR_ANY)
 	/*
 	 * The iretq could re-enable interrupts:
 	 */
@@ -570,10 +583,14 @@ retint_restore_args:	/* return to kernel space */
 restore_args:
 	RESTORE_ARGS 0,8,0						
 iret_label:	
+#ifdef CONFIG_PARAVIRT
+	INTERRUPT_RETURN
+#endif
+ENTRY(native_iret)
 	iretq
 
 	.section __ex_table,"a"
-	.quad iret_label,bad_iret	
+	.quad native_iret, bad_iret
 	.previous
 	.section .fixup,"ax"
 	/* force a signal here? this matches i386 behaviour */
@@ -581,24 +598,24 @@ iret_label:
 bad_iret:
 	movq $11,%rdi	/* SIGSEGV */
 	TRACE_IRQS_ON
-	sti
-	jmp do_exit			
-	.previous	
-	
+	ENABLE_INTERRUPTS(CLBR_ANY | ~(CLBR_RDI))
+	jmp do_exit
+	.previous
+
 	/* edi: workmask, edx: work */
 retint_careful:
 	CFI_RESTORE_STATE
 	bt    $TIF_NEED_RESCHED,%edx
 	jnc   retint_signal
 	TRACE_IRQS_ON
-	sti
+	ENABLE_INTERRUPTS(CLBR_NONE)
 	pushq %rdi
 	CFI_ADJUST_CFA_OFFSET	8
 	call  schedule
 	popq %rdi		
 	CFI_ADJUST_CFA_OFFSET	-8
 	GET_THREAD_INFO(%rcx)
-	cli
+	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	jmp retint_check
 	
@@ -606,14 +623,14 @@ retint_signal:
 	testl $_TIF_DO_NOTIFY_MASK,%edx
 	jz    retint_swapgs
 	TRACE_IRQS_ON
-	sti
+	ENABLE_INTERRUPTS(CLBR_NONE)
 	SAVE_REST
 	movq $-1,ORIG_RAX(%rsp) 			
 	xorl %esi,%esi		# oldset
 	movq %rsp,%rdi		# &pt_regs
 	call do_notify_resume
 	RESTORE_REST
-	cli
+	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	movl $_TIF_NEED_RESCHED,%edi
 	GET_THREAD_INFO(%rcx)
@@ -731,7 +748,7 @@ END(spurious_interrupt)
 	rdmsr
 	testl %edx,%edx
 	js    1f
-	swapgs
+	SWAPGS
 	xorl  %ebx,%ebx
 1:
 	.if \ist
@@ -747,7 +764,7 @@ END(spurious_interrupt)
 	.if \ist
 	addq	$EXCEPTION_STKSZ, per_cpu__init_tss + TSS_ist + (\ist - 1) * 8(%rbp)
 	.endif
-	cli
+	DISABLE_INTERRUPTS(CLBR_NONE)
 	.if \irqtrace
 	TRACE_IRQS_OFF
 	.endif
@@ -776,10 +793,10 @@ paranoid_swapgs\trace:
 	.if \trace
 	TRACE_IRQS_IRETQ 0
 	.endif
-	swapgs
+	SWAPGS_UNSAFE_STACK
 paranoid_restore\trace:
 	RESTORE_ALL 8
-	iretq
+	INTERRUPT_RETURN
 paranoid_userspace\trace:
 	GET_THREAD_INFO(%rcx)
 	movl threadinfo_flags(%rcx),%ebx
@@ -794,11 +811,11 @@ paranoid_userspace\trace:
 	.if \trace
 	TRACE_IRQS_ON
 	.endif
-	sti
+	ENABLE_INTERRUPTS(CLBR_NONE)
 	xorl %esi,%esi 			/* arg2: oldset */
 	movq %rsp,%rdi 			/* arg1: &pt_regs */
 	call do_notify_resume
-	cli
+	DISABLE_INTERRUPTS(CLBR_NONE)
 	.if \trace
 	TRACE_IRQS_OFF
 	.endif
@@ -807,9 +824,9 @@ paranoid_schedule\trace:
 	.if \trace
 	TRACE_IRQS_ON
 	.endif
-	sti
+	ENABLE_INTERRUPTS(CLBR_ANY)
 	call schedule
-	cli
+	DISABLE_INTERRUPTS(CLBR_ANY)
 	.if \trace
 	TRACE_IRQS_OFF
 	.endif
@@ -862,7 +879,7 @@ KPROBE_ENTRY(error_entry)
 	testl $3,CS(%rsp)
 	je  error_kernelspace
 error_swapgs:	
-	swapgs
+	SWAPGS
 error_sti:	
 	movq %rdi,RDI(%rsp) 	
 	CFI_REL_OFFSET	rdi,RDI
@@ -874,7 +891,7 @@ error_sti:
 error_exit:
 	movl %ebx,%eax
 	RESTORE_REST
-	cli
+	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	GET_THREAD_INFO(%rcx)	
 	testl %eax,%eax
@@ -911,12 +928,12 @@ ENTRY(load_gs_index)
 	CFI_STARTPROC
 	pushf
 	CFI_ADJUST_CFA_OFFSET 8
-	cli
-        swapgs
+	DISABLE_INTERRUPTS(CLBR_ANY | ~(CLBR_RDI))
+        SWAPGS
 gs_change:     
         movl %edi,%gs   
 2:	mfence		/* workaround */
-	swapgs
+	SWAPGS
         popf
 	CFI_ADJUST_CFA_OFFSET -8
         ret
@@ -930,7 +947,7 @@ ENDPROC(load_gs_index)
         .section .fixup,"ax"
 	/* running with kernelgs */
 bad_gs: 
-	swapgs			/* switch back to user gs */
+	SWAPGS			/* switch back to user gs */
 	xorl %eax,%eax
         movl %eax,%gs
         jmp  2b
-- 
cgit v1.2.3-59-g8ed1b


From 2f485ef568372af4680c4e2f8490efb9f2523b05 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:32:10 +0100
Subject: x86: move patching code to arch-specific file.

The core patching code for paravirt is sufficiently different
among i386 and x86_64, and we move them to specific files.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile_32         |  2 +-
 arch/x86/kernel/paravirt.c          | 50 -------------------------------------
 arch/x86/kernel/paravirt_patch_32.c | 49 ++++++++++++++++++++++++++++++++++++
 include/asm-x86/paravirt.h          |  8 ++++++
 4 files changed, 58 insertions(+), 51 deletions(-)
 create mode 100644 arch/x86/kernel/paravirt_patch_32.c

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index cfb71a5deb19..86c6327798b2 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -48,7 +48,7 @@ obj-$(CONFIG_K8_NB)		+= k8.o
 obj-$(CONFIG_MGEODE_LX)		+= geode_32.o mfgpt_32.o
 
 obj-$(CONFIG_VMI)		+= vmi_32.o vmiclock_32.o
-obj-$(CONFIG_PARAVIRT)		+= paravirt.o
+obj-$(CONFIG_PARAVIRT)		+= paravirt.o paravirt_patch_32.o
 obj-y				+= pcspeaker.o
 
 obj-$(CONFIG_SCx200)		+= scx200_32.o
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index e7c17cc4a99e..864be0498a32 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -58,59 +58,9 @@ char *memory_setup(void)
 	extern const char start_##ops##_##name[], end_##ops##_##name[];	\
 	asm("start_" #ops "_" #name ": " code "; end_" #ops "_" #name ":")
 
-DEF_NATIVE(pv_irq_ops, irq_disable, "cli");
-DEF_NATIVE(pv_irq_ops, irq_enable, "sti");
-DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf");
-DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax");
-DEF_NATIVE(pv_cpu_ops, iret, "iret");
-DEF_NATIVE(pv_cpu_ops, irq_enable_syscall_ret, "sti; sysexit");
-DEF_NATIVE(pv_mmu_ops, read_cr2, "mov %cr2, %eax");
-DEF_NATIVE(pv_mmu_ops, write_cr3, "mov %eax, %cr3");
-DEF_NATIVE(pv_mmu_ops, read_cr3, "mov %cr3, %eax");
-DEF_NATIVE(pv_cpu_ops, clts, "clts");
-DEF_NATIVE(pv_cpu_ops, read_tsc, "rdtsc");
-
 /* Undefined instruction for dealing with missing ops pointers. */
 static const unsigned char ud2a[] = { 0x0f, 0x0b };
 
-static unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
-			     unsigned long addr, unsigned len)
-{
-	const unsigned char *start, *end;
-	unsigned ret;
-
-	switch(type) {
-#define SITE(ops, x)						\
-	case PARAVIRT_PATCH(ops.x):				\
-		start = start_##ops##_##x;			\
-		end = end_##ops##_##x;				\
-		goto patch_site
-
-	SITE(pv_irq_ops, irq_disable);
-	SITE(pv_irq_ops, irq_enable);
-	SITE(pv_irq_ops, restore_fl);
-	SITE(pv_irq_ops, save_fl);
-	SITE(pv_cpu_ops, iret);
-	SITE(pv_cpu_ops, irq_enable_syscall_ret);
-	SITE(pv_mmu_ops, read_cr2);
-	SITE(pv_mmu_ops, read_cr3);
-	SITE(pv_mmu_ops, write_cr3);
-	SITE(pv_cpu_ops, clts);
-	SITE(pv_cpu_ops, read_tsc);
-#undef SITE
-
-	patch_site:
-		ret = paravirt_patch_insns(ibuf, len, start, end);
-		break;
-
-	default:
-		ret = paravirt_patch_default(type, clobbers, ibuf, addr, len);
-		break;
-	}
-
-	return ret;
-}
-
 unsigned paravirt_patch_nop(void)
 {
 	return 0;
diff --git a/arch/x86/kernel/paravirt_patch_32.c b/arch/x86/kernel/paravirt_patch_32.c
new file mode 100644
index 000000000000..82fc5fcab4f4
--- /dev/null
+++ b/arch/x86/kernel/paravirt_patch_32.c
@@ -0,0 +1,49 @@
+#include <asm/paravirt.h>
+
+DEF_NATIVE(pv_irq_ops, irq_disable, "cli");
+DEF_NATIVE(pv_irq_ops, irq_enable, "sti");
+DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf");
+DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax");
+DEF_NATIVE(pv_cpu_ops, iret, "iret");
+DEF_NATIVE(pv_cpu_ops, irq_enable_syscall_ret, "sti; sysexit");
+DEF_NATIVE(pv_mmu_ops, read_cr2, "mov %cr2, %eax");
+DEF_NATIVE(pv_mmu_ops, write_cr3, "mov %eax, %cr3");
+DEF_NATIVE(pv_mmu_ops, read_cr3, "mov %cr3, %eax");
+DEF_NATIVE(pv_cpu_ops, clts, "clts");
+DEF_NATIVE(pv_cpu_ops, read_tsc, "rdtsc");
+
+unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
+		      unsigned long addr, unsigned len)
+{
+	const unsigned char *start, *end;
+	unsigned ret;
+
+#define PATCH_SITE(ops, x)					\
+		case PARAVIRT_PATCH(ops.x):			\
+			start = start_##ops##_##x;		\
+			end = end_##ops##_##x;			\
+			goto patch_site
+	switch(type) {
+		PATCH_SITE(pv_irq_ops, irq_disable);
+		PATCH_SITE(pv_irq_ops, irq_enable);
+		PATCH_SITE(pv_irq_ops, restore_fl);
+		PATCH_SITE(pv_irq_ops, save_fl);
+		PATCH_SITE(pv_cpu_ops, iret);
+		PATCH_SITE(pv_cpu_ops, irq_enable_syscall_ret);
+		PATCH_SITE(pv_mmu_ops, read_cr2);
+		PATCH_SITE(pv_mmu_ops, read_cr3);
+		PATCH_SITE(pv_mmu_ops, write_cr3);
+		PATCH_SITE(pv_cpu_ops, clts);
+		PATCH_SITE(pv_cpu_ops, read_tsc);
+
+	patch_site:
+		ret = paravirt_patch_insns(ibuf, len, start, end);
+		break;
+
+	default:
+		ret = paravirt_patch_default(type, clobbers, ibuf, addr, len);
+		break;
+	}
+#undef PATCH_SITE
+	return ret;
+}
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 5935c273af1f..b35ed95166e4 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -308,6 +308,11 @@ extern struct pv_mmu_ops pv_mmu_ops;
 #define paravirt_alt(insn_string)					\
 	_paravirt_alt(insn_string, "%c[paravirt_typenum]", "%c[paravirt_clobber]")
 
+/* Simple instruction patching code. */
+#define DEF_NATIVE(ops, name, code) 					\
+	extern const char start_##ops##_##name[], end_##ops##_##name[];	\
+	asm("start_" #ops "_" #name ": " code "; end_" #ops "_" #name ":")
+
 unsigned paravirt_patch_nop(void);
 unsigned paravirt_patch_ignore(unsigned len);
 unsigned paravirt_patch_call(void *insnbuf,
@@ -322,6 +327,9 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
 unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
 			      const char *start, const char *end);
 
+unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
+		      unsigned long addr, unsigned len);
+
 int paravirt_disable_iospace(void);
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From 53fd13cff04ce27ff3e8d3eb7e5ad4f56b580f2f Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:32:10 +0100
Subject: x86: patching functions on 64-bit

Like i386, x86_64 also need to include its own patching function.
(Well, if you're not in a hurry, and don't care about speed, you don't
really _need_ ;-))

So here they are. Not much different in essence from i386

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile_64         |  1 +
 arch/x86/kernel/paravirt_patch_64.c | 56 +++++++++++++++++++++++++++++++++++++
 2 files changed, 57 insertions(+)
 create mode 100644 arch/x86/kernel/paravirt_patch_64.c

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index 7fcf972aa5d6..b8f9d13eb5e3 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -41,6 +41,7 @@ obj-$(CONFIG_X86_VSMP)		+= vsmp_64.o
 obj-$(CONFIG_K8_NB)		+= k8.o
 obj-$(CONFIG_AUDIT)		+= audit_64.o
 obj-$(CONFIG_EFI)		+= efi.o efi_64.o efi_stub_64.o
+obj-$(CONFIG_PARAVIRT)		+= paravirt.o paravirt_patch_64.o
 
 obj-$(CONFIG_MODULES)		+= module_64.o
 obj-$(CONFIG_PCI)		+= early-quirks.o
diff --git a/arch/x86/kernel/paravirt_patch_64.c b/arch/x86/kernel/paravirt_patch_64.c
new file mode 100644
index 000000000000..cbfc4f3069e3
--- /dev/null
+++ b/arch/x86/kernel/paravirt_patch_64.c
@@ -0,0 +1,56 @@
+#include <asm/paravirt.h>
+#include <asm/asm-offsets.h>
+
+DEF_NATIVE(pv_irq_ops, irq_disable, "cli");
+DEF_NATIVE(pv_irq_ops, irq_enable, "sti");
+DEF_NATIVE(pv_irq_ops, restore_fl, "pushq %rdi; popfq");
+DEF_NATIVE(pv_irq_ops, save_fl, "pushfq; popq %rax");
+DEF_NATIVE(pv_cpu_ops, iret, "iretq");
+DEF_NATIVE(pv_mmu_ops, read_cr2, "movq %cr2, %rax");
+DEF_NATIVE(pv_mmu_ops, read_cr3, "movq %cr3, %rax");
+DEF_NATIVE(pv_mmu_ops, write_cr3, "movq %rdi, %cr3");
+DEF_NATIVE(pv_mmu_ops, flush_tlb_single, "invlpg (%rdi)");
+DEF_NATIVE(pv_cpu_ops, clts, "clts");
+DEF_NATIVE(pv_cpu_ops, wbinvd, "wbinvd");
+
+/* the three commands give us more control to how to return from a syscall */
+DEF_NATIVE(pv_cpu_ops, irq_enable_syscall_ret, "movq %gs:" __stringify(pda_oldrsp) ", %rsp; swapgs; sysretq;");
+DEF_NATIVE(pv_cpu_ops, swapgs, "swapgs");
+
+unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
+		      unsigned long addr, unsigned len)
+{
+	const unsigned char *start, *end;
+	unsigned ret;
+
+#define PATCH_SITE(ops, x)					\
+		case PARAVIRT_PATCH(ops.x):			\
+			start = start_##ops##_##x;		\
+			end = end_##ops##_##x;			\
+			goto patch_site
+	switch(type) {
+		PATCH_SITE(pv_irq_ops, restore_fl);
+		PATCH_SITE(pv_irq_ops, save_fl);
+		PATCH_SITE(pv_irq_ops, irq_enable);
+		PATCH_SITE(pv_irq_ops, irq_disable);
+		PATCH_SITE(pv_cpu_ops, iret);
+		PATCH_SITE(pv_cpu_ops, irq_enable_syscall_ret);
+		PATCH_SITE(pv_cpu_ops, swapgs);
+		PATCH_SITE(pv_mmu_ops, read_cr2);
+		PATCH_SITE(pv_mmu_ops, read_cr3);
+		PATCH_SITE(pv_mmu_ops, write_cr3);
+		PATCH_SITE(pv_cpu_ops, clts);
+		PATCH_SITE(pv_mmu_ops, flush_tlb_single);
+		PATCH_SITE(pv_cpu_ops, wbinvd);
+
+	patch_site:
+		ret = paravirt_patch_insns(ibuf, len, start, end);
+		break;
+
+	default:
+		ret = paravirt_patch_default(type, clobbers, ibuf, addr, len);
+		break;
+	}
+#undef PATCH_SITE
+	return ret;
+}
-- 
cgit v1.2.3-59-g8ed1b


From bfd074e05bdb69652d24ebc60b126899174ca788 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:32:11 +0100
Subject: replace x86_read/write_per_cpu with a common function.

x86_read_per_cpu() and its writeish sister are not present in x86_64. So in
this patch, we replace them with __get_cpu_var(), which is present in both

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/paravirt.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 864be0498a32..c20b4f8d62f5 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -238,18 +238,18 @@ static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) = PARAVIRT_LA
 
 static inline void enter_lazy(enum paravirt_lazy_mode mode)
 {
-	BUG_ON(x86_read_percpu(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE);
+	BUG_ON(__get_cpu_var(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE);
 	BUG_ON(preemptible());
 
-	x86_write_percpu(paravirt_lazy_mode, mode);
+	__get_cpu_var(paravirt_lazy_mode) = mode;
 }
 
 void paravirt_leave_lazy(enum paravirt_lazy_mode mode)
 {
-	BUG_ON(x86_read_percpu(paravirt_lazy_mode) != mode);
+	BUG_ON(__get_cpu_var(paravirt_lazy_mode) != mode);
 	BUG_ON(preemptible());
 
-	x86_write_percpu(paravirt_lazy_mode, PARAVIRT_LAZY_NONE);
+	__get_cpu_var(paravirt_lazy_mode) = PARAVIRT_LAZY_NONE;
 }
 
 void paravirt_enter_lazy_mmu(void)
@@ -274,7 +274,7 @@ void paravirt_leave_lazy_cpu(void)
 
 enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
 {
-	return x86_read_percpu(paravirt_lazy_mode);
+	return __get_cpu_var(paravirt_lazy_mode);
 }
 
 struct pv_info pv_info = {
-- 
cgit v1.2.3-59-g8ed1b


From 8b2cb7a8f531d6ca72a8aff873b9bb1c6b3122ba Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:32:11 +0100
Subject: x86: 32-bit EFI runtime service support: fixes in sync with 64-bit
 support

support according to fixes of x86_64 support.

- Delete efi_rt_lock because it is used during system early boot,
  before SMP is initialized.

- Change local_flush_tlb() to __flush_tlb_all() to flush global page
  mapping.

- Clean up includes.

- Revise Kconfig description.

- Enable noefi kernel parameter on i386.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/kernel-parameters.txt   |  2 ++
 Documentation/x86_64/boot-options.txt |  4 ----
 arch/x86/Kconfig                      | 19 ++++++++-----------
 arch/x86/kernel/efi.c                 |  7 +++++++
 arch/x86/kernel/efi_32.c              | 25 +++++--------------------
 arch/x86/kernel/efi_64.c              |  7 -------
 arch/x86/kernel/setup_32.c            |  6 +++---
 7 files changed, 25 insertions(+), 45 deletions(-)

(limited to 'arch')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index b3f20beea411..e7910f8b4fcc 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1169,6 +1169,8 @@ and is between 256 and 4096 characters. It is defined in the file
 
 	nodisconnect	[HW,SCSI,M68K] Disables SCSI disconnects.
 
+	noefi		[X86-32,X86-64] Disable EFI runtime services support.
+
 	noexec		[IA-64]
 
 	noexec		[X86-32,X86-64]
diff --git a/Documentation/x86_64/boot-options.txt b/Documentation/x86_64/boot-options.txt
index 638bf46ca059..34abae4e9442 100644
--- a/Documentation/x86_64/boot-options.txt
+++ b/Documentation/x86_64/boot-options.txt
@@ -306,8 +306,4 @@ Debugging
 		newfallback: use new unwinder but fall back to old if it gets
 			stuck (default)
 
-EFI
-
-  noefi		Disable EFI support
-
 Miscellaneous
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d89b94528153..fa6fa52248d9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -961,21 +961,18 @@ config MTRR
 
 config EFI
 	def_bool n
-	prompt "Boot from EFI support"
+	prompt "EFI runtime service support"
 	depends on ACPI
 	---help---
-	This enables the kernel to boot on EFI platforms using
-	system configuration information passed to it from the firmware.
-	This also enables the kernel to use any EFI runtime services that are
+	This enables the kernel to use EFI runtime services that are
 	available (such as the EFI variable services).
 
-	This option is only useful on systems that have EFI firmware
-	and will result in a kernel image that is ~8k larger.  In addition,
-	you must use the latest ELILO loader available at
-	<http://elilo.sourceforge.net> in order to take advantage of
-	kernel initialization using EFI information (neither GRUB nor LILO know
-	anything about EFI).  However, even with this option, the resultant
-	kernel should continue to boot on existing non-EFI platforms.
+	This option is only useful on systems that have EFI firmware.
+  	In addition, you should use the latest ELILO loader available
+  	at <http://elilo.sourceforge.net> in order to take advantage
+  	of EFI runtime services. However, even with this option, the
+  	resultant kernel should continue to boot on existing non-EFI
+  	platforms.
 
 config IRQBALANCE
 	def_bool y
diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index 0a61522e85c7..2939b015c2ed 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -55,6 +55,13 @@ struct efi_memory_map memmap;
 struct efi efi_phys __initdata;
 static efi_system_table_t efi_systab __initdata;
 
+static int __init setup_noefi(char *arg)
+{
+	efi_enabled = 0;
+	return 0;
+}
+early_param("noefi", setup_noefi);
+
 static efi_status_t virt_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
 {
 	return efi_call_virt2(get_time, tm, tc);
diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c
index 30f937116288..afd2c3b039d6 100644
--- a/arch/x86/kernel/efi_32.c
+++ b/arch/x86/kernel/efi_32.c
@@ -20,27 +20,15 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/mm.h>
 #include <linux/types.h>
-#include <linux/time.h>
-#include <linux/spinlock.h>
-#include <linux/bootmem.h>
 #include <linux/ioport.h>
-#include <linux/module.h>
 #include <linux/efi.h>
-#include <linux/kexec.h>
 
-#include <asm/setup.h>
 #include <asm/io.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/desc.h>
 #include <asm/tlbflush.h>
 
-#define PFX 		"EFI: "
-
 /*
  * To make EFI call EFI runtime service in physical addressing mode we need
  * prelog/epilog before/after the invocation to disable interrupt, to
@@ -49,16 +37,14 @@
  */
 
 static unsigned long efi_rt_eflags;
-static DEFINE_SPINLOCK(efi_rt_lock);
 static pgd_t efi_bak_pg_dir_pointer[2];
 
-void efi_call_phys_prelog(void) __acquires(efi_rt_lock)
+void efi_call_phys_prelog(void)
 {
 	unsigned long cr4;
 	unsigned long temp;
 	struct desc_ptr gdt_descr;
 
-	spin_lock(&efi_rt_lock);
 	local_irq_save(efi_rt_eflags);
 
 	/*
@@ -88,14 +74,14 @@ void efi_call_phys_prelog(void) __acquires(efi_rt_lock)
 	/*
 	 * After the lock is released, the original page table is restored.
 	 */
-	local_flush_tlb();
+	__flush_tlb_all();
 
 	gdt_descr.address = __pa(get_cpu_gdt_table(0));
 	gdt_descr.size = GDT_SIZE - 1;
 	load_gdt(&gdt_descr);
 }
 
-void efi_call_phys_epilog(void) __releases(efi_rt_lock)
+void efi_call_phys_epilog(void)
 {
 	unsigned long cr4;
 	struct desc_ptr gdt_descr;
@@ -119,10 +105,9 @@ void efi_call_phys_epilog(void) __releases(efi_rt_lock)
 	/*
 	 * After the lock is released, the original page table is restored.
 	 */
-	local_flush_tlb();
+	__flush_tlb_all();
 
 	local_irq_restore(efi_rt_eflags);
-	spin_unlock(&efi_rt_lock);
 }
 
 /*
@@ -135,7 +120,7 @@ void __init efi_map_memmap(void)
 	memmap.map = bt_ioremap((unsigned long) memmap.phys_map,
 			(memmap.nr_map * memmap.desc_size));
 	if (memmap.map == NULL)
-		printk(KERN_ERR PFX "Could not remap the EFI memmap!\n");
+		printk(KERN_ERR "Could not remap the EFI memmap!\n");
 
 	memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size);
 }
diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c
index f2000dbc7195..269de2e049a3 100644
--- a/arch/x86/kernel/efi_64.c
+++ b/arch/x86/kernel/efi_64.c
@@ -40,13 +40,6 @@
 static pgd_t save_pgd __initdata;
 static unsigned long efi_flags __initdata;
 
-static int __init setup_noefi(char *arg)
-{
-	efi_enabled = 0;
-	return 0;
-}
-early_param("noefi", setup_noefi);
-
 static void __init early_mapping_set_exec(unsigned long start,
 					  unsigned long end,
 					  int executable)
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 2e805da337a2..704550fdb84c 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -648,9 +648,6 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_INFO "BIOS-provided physical RAM map:\n");
 	print_memory_map(memory_setup());
 
-	if (efi_enabled)
-		efi_init();
-
 	copy_edd();
 
 	if (!boot_params.hdr.root_flags)
@@ -677,6 +674,9 @@ void __init setup_arch(char **cmdline_p)
 	strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
 	*cmdline_p = command_line;
 
+	if (efi_enabled)
+		efi_init();
+
 	max_low_pfn = setup_memory();
 
 #ifdef CONFIG_VMI
-- 
cgit v1.2.3-59-g8ed1b


From 9e8b6d90ac973939c4605236d140ae64d459622b Mon Sep 17 00:00:00 2001
From: Min Zhang <mzhang@mvista.com>
Date: Wed, 30 Jan 2008 13:32:11 +0100
Subject: arch/x86/kernel/cpu/mcheck/p4.c: cleanups

SMP, the machine check exception dispatches all logical processors within a
physical package to the machine-check exception handler, so the printk
within each handler outputs concurrently and makes the output unreadable.
Refer to Intel system programming guide Part 1 Section 7.8.5
http://developer.intel.com/design/processor/manuals/253668.pdf

Signed-off-by: Min Zhang <mzhang@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/mcheck/k7.c | 11 +++++++----
 arch/x86/kernel/cpu/mcheck/p4.c | 21 ++++++++++++---------
 arch/x86/kernel/cpu/mcheck/p6.c | 11 +++++++----
 3 files changed, 26 insertions(+), 17 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/k7.c b/arch/x86/kernel/cpu/mcheck/k7.c
index 39fa76fd3851..9e929409fd7a 100644
--- a/arch/x86/kernel/cpu/mcheck/k7.c
+++ b/arch/x86/kernel/cpu/mcheck/k7.c
@@ -33,21 +33,24 @@ static void k7_machine_check(struct pt_regs * regs, long error_code)
 	for (i=1; i<nr_mce_banks; i++) {
 		rdmsr (MSR_IA32_MC0_STATUS+i*4,low, high);
 		if (high&(1<<31)) {
+			char misc[20];
+			char addr[24];
+			misc[0] = addr[0] = '\0';
 			if (high & (1<<29))
 				recover |= 1;
 			if (high & (1<<25))
 				recover |= 2;
-			printk (KERN_EMERG "Bank %d: %08x%08x", i, high, low);
 			high &= ~(1<<31);
 			if (high & (1<<27)) {
 				rdmsr (MSR_IA32_MC0_MISC+i*4, alow, ahigh);
-				printk ("[%08x%08x]", ahigh, alow);
+				snprintf (misc, 20, "[%08x%08x]", ahigh, alow);
 			}
 			if (high & (1<<26)) {
 				rdmsr (MSR_IA32_MC0_ADDR+i*4, alow, ahigh);
-				printk (" at %08x%08x", ahigh, alow);
+				snprintf (addr, 24, " at %08x%08x", ahigh, alow);
 			}
-			printk ("\n");
+			printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",
+				smp_processor_id(), i, high, low, misc, addr);
 			/* Clear it */
 			wrmsr (MSR_IA32_MC0_STATUS+i*4, 0UL, 0UL);
 			/* Serialize */
diff --git a/arch/x86/kernel/cpu/mcheck/p4.c b/arch/x86/kernel/cpu/mcheck/p4.c
index 16a6238dbc2a..cb03a1b50504 100644
--- a/arch/x86/kernel/cpu/mcheck/p4.c
+++ b/arch/x86/kernel/cpu/mcheck/p4.c
@@ -158,32 +158,35 @@ static void intel_machine_check(struct pt_regs * regs, long error_code)
 	if (mce_num_extended_msrs > 0) {
 		struct intel_mce_extended_msrs dbg;
 		intel_get_extended_msrs(&dbg);
-		printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n",
-			smp_processor_id(), dbg.eip, dbg.eflags);
-		printk (KERN_DEBUG "\teax: %08x ebx: %08x ecx: %08x edx: %08x\n",
-			dbg.eax, dbg.ebx, dbg.ecx, dbg.edx);
-		printk (KERN_DEBUG "\tesi: %08x edi: %08x ebp: %08x esp: %08x\n",
+		printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n"
+			"\teax: %08x ebx: %08x ecx: %08x edx: %08x\n"
+			"\tesi: %08x edi: %08x ebp: %08x esp: %08x\n",
+			smp_processor_id(), dbg.eip, dbg.eflags,
+			dbg.eax, dbg.ebx, dbg.ecx, dbg.edx,
 			dbg.esi, dbg.edi, dbg.ebp, dbg.esp);
 	}
 
 	for (i=0; i<nr_mce_banks; i++) {
 		rdmsr (MSR_IA32_MC0_STATUS+i*4,low, high);
 		if (high & (1<<31)) {
+			char misc[20];
+			char addr[24];
+			misc[0] = addr[0] = '\0';
 			if (high & (1<<29))
 				recover |= 1;
 			if (high & (1<<25))
 				recover |= 2;
-			printk (KERN_EMERG "Bank %d: %08x%08x", i, high, low);
 			high &= ~(1<<31);
 			if (high & (1<<27)) {
 				rdmsr (MSR_IA32_MC0_MISC+i*4, alow, ahigh);
-				printk ("[%08x%08x]", ahigh, alow);
+				snprintf (misc, 20, "[%08x%08x]", ahigh, alow);
 			}
 			if (high & (1<<26)) {
 				rdmsr (MSR_IA32_MC0_ADDR+i*4, alow, ahigh);
-				printk (" at %08x%08x", ahigh, alow);
+				snprintf (addr, 24, " at %08x%08x", ahigh, alow);
 			}
-			printk ("\n");
+			printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",
+				smp_processor_id(), i, high, low, misc, addr);
 		}
 	}
 
diff --git a/arch/x86/kernel/cpu/mcheck/p6.c b/arch/x86/kernel/cpu/mcheck/p6.c
index cb3829e07987..b61f3038c4c8 100644
--- a/arch/x86/kernel/cpu/mcheck/p6.c
+++ b/arch/x86/kernel/cpu/mcheck/p6.c
@@ -33,21 +33,24 @@ static void intel_machine_check(struct pt_regs * regs, long error_code)
 	for (i=0; i<nr_mce_banks; i++) {
 		rdmsr (MSR_IA32_MC0_STATUS+i*4,low, high);
 		if (high & (1<<31)) {
+			char misc[20];
+			char addr[24];
+			misc[0] = addr[0] = '\0';
 			if (high & (1<<29))
 				recover |= 1;
 			if (high & (1<<25))
 				recover |= 2;
-			printk (KERN_EMERG "Bank %d: %08x%08x", i, high, low);
 			high &= ~(1<<31);
 			if (high & (1<<27)) {
 				rdmsr (MSR_IA32_MC0_MISC+i*4, alow, ahigh);
-				printk ("[%08x%08x]", ahigh, alow);
+				snprintf (misc, 20, "[%08x%08x]", ahigh, alow);
 			}
 			if (high & (1<<26)) {
 				rdmsr (MSR_IA32_MC0_ADDR+i*4, alow, ahigh);
-				printk (" at %08x%08x", ahigh, alow);
+				snprintf (addr, 24, " at %08x%08x", ahigh, alow);
 			}
-			printk ("\n");
+			printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",
+				smp_processor_id(), i, high, low, misc, addr);
 		}
 	}
 
-- 
cgit v1.2.3-59-g8ed1b


From b912a1c73739b6016ced049552392a148c1736c8 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 30 Jan 2008 13:32:12 +0100
Subject: x86: arch/x86/kernel/cpu/mcheck/ checkpatch fixes

#40: FILE: arch/x86/kernel/cpu/mcheck/k7.c:46:
+				snprintf (misc, 20, "[%08x%08x]", ahigh, alow);

WARNING: line over 80 characters
#45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50:
+				snprintf (addr, 24, " at %08x%08x", ahigh, alow);

WARNING: no space between function name and open parenthesis '('
#45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50:
+				snprintf (addr, 24, " at %08x%08x", ahigh, alow);

WARNING: no space between function name and open parenthesis '('
#48: FILE: arch/x86/kernel/cpu/mcheck/k7.c:52:
+			printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",

WARNING: no space between function name and open parenthesis '('
#65: FILE: arch/x86/kernel/cpu/mcheck/p4.c:161:
+		printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n"

WARNING: no space between function name and open parenthesis '('
#88: FILE: arch/x86/kernel/cpu/mcheck/p4.c:182:
+				snprintf (misc, 20, "[%08x%08x]", ahigh, alow);

WARNING: line over 80 characters
#93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186:
+				snprintf (addr, 24, " at %08x%08x", ahigh, alow);

WARNING: no space between function name and open parenthesis '('
#93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186:
+				snprintf (addr, 24, " at %08x%08x", ahigh, alow);

WARNING: no space between function name and open parenthesis '('
#96: FILE: arch/x86/kernel/cpu/mcheck/p4.c:188:
+			printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",

WARNING: no space between function name and open parenthesis '('
#120: FILE: arch/x86/kernel/cpu/mcheck/p6.c:46:
+				snprintf (misc, 20, "[%08x%08x]", ahigh, alow);

WARNING: line over 80 characters
#125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50:
+				snprintf (addr, 24, " at %08x%08x", ahigh, alow);

WARNING: no space between function name and open parenthesis '('
#125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50:
+				snprintf (addr, 24, " at %08x%08x", ahigh, alow);

WARNING: no space between function name and open parenthesis '('
#128: FILE: arch/x86/kernel/cpu/mcheck/p6.c:52:
+			printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",

total: 0 errors, 13 warnings, 100 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Min Zhang <mzhang@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/mcheck/k7.c | 18 +++++++++---------
 arch/x86/kernel/cpu/mcheck/p4.c | 18 +++++++++---------
 arch/x86/kernel/cpu/mcheck/p6.c | 16 ++++++++--------
 3 files changed, 26 insertions(+), 26 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/k7.c b/arch/x86/kernel/cpu/mcheck/k7.c
index 9e929409fd7a..55dfd4f9446a 100644
--- a/arch/x86/kernel/cpu/mcheck/k7.c
+++ b/arch/x86/kernel/cpu/mcheck/k7.c
@@ -27,11 +27,11 @@ static void k7_machine_check(struct pt_regs * regs, long error_code)
 	if (mcgstl & (1<<0))	/* Recoverable ? */
 		recover=0;
 
-	printk (KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n",
+	printk(KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n",
 		smp_processor_id(), mcgsth, mcgstl);
 
-	for (i=1; i<nr_mce_banks; i++) {
-		rdmsr (MSR_IA32_MC0_STATUS+i*4,low, high);
+	for (i = 1; i < nr_mce_banks; i++) {
+		rdmsr(MSR_IA32_MC0_STATUS+i*4,low, high);
 		if (high&(1<<31)) {
 			char misc[20];
 			char addr[24];
@@ -42,17 +42,17 @@ static void k7_machine_check(struct pt_regs * regs, long error_code)
 				recover |= 2;
 			high &= ~(1<<31);
 			if (high & (1<<27)) {
-				rdmsr (MSR_IA32_MC0_MISC+i*4, alow, ahigh);
-				snprintf (misc, 20, "[%08x%08x]", ahigh, alow);
+				rdmsr(MSR_IA32_MC0_MISC+i*4, alow, ahigh);
+				snprintf(misc, 20, "[%08x%08x]", ahigh, alow);
 			}
 			if (high & (1<<26)) {
-				rdmsr (MSR_IA32_MC0_ADDR+i*4, alow, ahigh);
-				snprintf (addr, 24, " at %08x%08x", ahigh, alow);
+				rdmsr(MSR_IA32_MC0_ADDR+i*4, alow, ahigh);
+				snprintf(addr, 24, " at %08x%08x", ahigh, alow);
 			}
-			printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",
+			printk(KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",
 				smp_processor_id(), i, high, low, misc, addr);
 			/* Clear it */
-			wrmsr (MSR_IA32_MC0_STATUS+i*4, 0UL, 0UL);
+			wrmsr(MSR_IA32_MC0_STATUS+i*4, 0UL, 0UL);
 			/* Serialize */
 			wmb();
 			add_taint(TAINT_MACHINE_CHECK);
diff --git a/arch/x86/kernel/cpu/mcheck/p4.c b/arch/x86/kernel/cpu/mcheck/p4.c
index cb03a1b50504..77463a3e9adf 100644
--- a/arch/x86/kernel/cpu/mcheck/p4.c
+++ b/arch/x86/kernel/cpu/mcheck/p4.c
@@ -152,13 +152,13 @@ static void intel_machine_check(struct pt_regs * regs, long error_code)
 	if (mcgstl & (1<<0))	/* Recoverable ? */
 		recover=0;
 
-	printk (KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n",
+	printk(KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n",
 		smp_processor_id(), mcgsth, mcgstl);
 
 	if (mce_num_extended_msrs > 0) {
 		struct intel_mce_extended_msrs dbg;
 		intel_get_extended_msrs(&dbg);
-		printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n"
+		printk(KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n"
 			"\teax: %08x ebx: %08x ecx: %08x edx: %08x\n"
 			"\tesi: %08x edi: %08x ebp: %08x esp: %08x\n",
 			smp_processor_id(), dbg.eip, dbg.eflags,
@@ -166,8 +166,8 @@ static void intel_machine_check(struct pt_regs * regs, long error_code)
 			dbg.esi, dbg.edi, dbg.ebp, dbg.esp);
 	}
 
-	for (i=0; i<nr_mce_banks; i++) {
-		rdmsr (MSR_IA32_MC0_STATUS+i*4,low, high);
+	for (i = 0; i < nr_mce_banks; i++) {
+		rdmsr(MSR_IA32_MC0_STATUS+i*4,low, high);
 		if (high & (1<<31)) {
 			char misc[20];
 			char addr[24];
@@ -178,14 +178,14 @@ static void intel_machine_check(struct pt_regs * regs, long error_code)
 				recover |= 2;
 			high &= ~(1<<31);
 			if (high & (1<<27)) {
-				rdmsr (MSR_IA32_MC0_MISC+i*4, alow, ahigh);
-				snprintf (misc, 20, "[%08x%08x]", ahigh, alow);
+				rdmsr(MSR_IA32_MC0_MISC+i*4, alow, ahigh);
+				snprintf(misc, 20, "[%08x%08x]", ahigh, alow);
 			}
 			if (high & (1<<26)) {
-				rdmsr (MSR_IA32_MC0_ADDR+i*4, alow, ahigh);
-				snprintf (addr, 24, " at %08x%08x", ahigh, alow);
+				rdmsr(MSR_IA32_MC0_ADDR+i*4, alow, ahigh);
+				snprintf(addr, 24, " at %08x%08x", ahigh, alow);
 			}
-			printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",
+			printk(KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",
 				smp_processor_id(), i, high, low, misc, addr);
 		}
 	}
diff --git a/arch/x86/kernel/cpu/mcheck/p6.c b/arch/x86/kernel/cpu/mcheck/p6.c
index b61f3038c4c8..20376a2c0cf8 100644
--- a/arch/x86/kernel/cpu/mcheck/p6.c
+++ b/arch/x86/kernel/cpu/mcheck/p6.c
@@ -27,11 +27,11 @@ static void intel_machine_check(struct pt_regs * regs, long error_code)
 	if (mcgstl & (1<<0))	/* Recoverable ? */
 		recover=0;
 
-	printk (KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n",
+	printk(KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n",
 		smp_processor_id(), mcgsth, mcgstl);
 
-	for (i=0; i<nr_mce_banks; i++) {
-		rdmsr (MSR_IA32_MC0_STATUS+i*4,low, high);
+	for (i = 0; i < nr_mce_banks; i++) {
+		rdmsr(MSR_IA32_MC0_STATUS+i*4,low, high);
 		if (high & (1<<31)) {
 			char misc[20];
 			char addr[24];
@@ -42,14 +42,14 @@ static void intel_machine_check(struct pt_regs * regs, long error_code)
 				recover |= 2;
 			high &= ~(1<<31);
 			if (high & (1<<27)) {
-				rdmsr (MSR_IA32_MC0_MISC+i*4, alow, ahigh);
-				snprintf (misc, 20, "[%08x%08x]", ahigh, alow);
+				rdmsr(MSR_IA32_MC0_MISC+i*4, alow, ahigh);
+				snprintf(misc, 20, "[%08x%08x]", ahigh, alow);
 			}
 			if (high & (1<<26)) {
-				rdmsr (MSR_IA32_MC0_ADDR+i*4, alow, ahigh);
-				snprintf (addr, 24, " at %08x%08x", ahigh, alow);
+				rdmsr(MSR_IA32_MC0_ADDR+i*4, alow, ahigh);
+				snprintf(addr, 24, " at %08x%08x", ahigh, alow);
 			}
-			printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",
+			printk(KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",
 				smp_processor_id(), i, high, low, misc, addr);
 		}
 	}
-- 
cgit v1.2.3-59-g8ed1b


From 7271339347653f6d652bb47aaee1f57d936002f6 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 30 Jan 2008 13:32:13 +0100
Subject: x86: arch/x86/kernel/cpu/mcheck/k7.c checkpatch fixes

#88: FILE: arch/x86/kernel/cpu/mcheck/k7.c:34:
+		rdmsr(MSR_IA32_MC0_STATUS+i*4,low, high);
 		                             ^

ERROR: need space after that ',' (ctx:VxV)
#142: FILE: arch/x86/kernel/cpu/mcheck/p4.c:170:
+		rdmsr(MSR_IA32_MC0_STATUS+i*4,low, high);
 		                             ^

ERROR: need space after that ',' (ctx:VxV)
#180: FILE: arch/x86/kernel/cpu/mcheck/p6.c:34:
+		rdmsr(MSR_IA32_MC0_STATUS+i*4,low, high);
 		                             ^

total: 3 errors, 0 warnings, 114 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Min Zhang <mzhang@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/mcheck/k7.c | 2 +-
 arch/x86/kernel/cpu/mcheck/p4.c | 2 +-
 arch/x86/kernel/cpu/mcheck/p6.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/k7.c b/arch/x86/kernel/cpu/mcheck/k7.c
index 55dfd4f9446a..e633c9c2b764 100644
--- a/arch/x86/kernel/cpu/mcheck/k7.c
+++ b/arch/x86/kernel/cpu/mcheck/k7.c
@@ -31,7 +31,7 @@ static void k7_machine_check(struct pt_regs * regs, long error_code)
 		smp_processor_id(), mcgsth, mcgstl);
 
 	for (i = 1; i < nr_mce_banks; i++) {
-		rdmsr(MSR_IA32_MC0_STATUS+i*4,low, high);
+		rdmsr(MSR_IA32_MC0_STATUS+i*4, low, high);
 		if (high&(1<<31)) {
 			char misc[20];
 			char addr[24];
diff --git a/arch/x86/kernel/cpu/mcheck/p4.c b/arch/x86/kernel/cpu/mcheck/p4.c
index 77463a3e9adf..cb03345554a5 100644
--- a/arch/x86/kernel/cpu/mcheck/p4.c
+++ b/arch/x86/kernel/cpu/mcheck/p4.c
@@ -167,7 +167,7 @@ static void intel_machine_check(struct pt_regs * regs, long error_code)
 	}
 
 	for (i = 0; i < nr_mce_banks; i++) {
-		rdmsr(MSR_IA32_MC0_STATUS+i*4,low, high);
+		rdmsr(MSR_IA32_MC0_STATUS+i*4, low, high);
 		if (high & (1<<31)) {
 			char misc[20];
 			char addr[24];
diff --git a/arch/x86/kernel/cpu/mcheck/p6.c b/arch/x86/kernel/cpu/mcheck/p6.c
index 20376a2c0cf8..74342604d30e 100644
--- a/arch/x86/kernel/cpu/mcheck/p6.c
+++ b/arch/x86/kernel/cpu/mcheck/p6.c
@@ -31,7 +31,7 @@ static void intel_machine_check(struct pt_regs * regs, long error_code)
 		smp_processor_id(), mcgsth, mcgstl);
 
 	for (i = 0; i < nr_mce_banks; i++) {
-		rdmsr(MSR_IA32_MC0_STATUS+i*4,low, high);
+		rdmsr(MSR_IA32_MC0_STATUS+i*4, low, high);
 		if (high & (1<<31)) {
 			char misc[20];
 			char addr[24];
-- 
cgit v1.2.3-59-g8ed1b


From e419190683cdeeda9be69af1dbc77031478559af Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 30 Jan 2008 13:32:13 +0100
Subject: x86: arch/x86/math-emu/errors.c: fix printk warnings

arch/x86/math-emu/errors.c:163: warning: format '%ld' expects type 'long int', but argument 3 has type 'u32'
arch/x86/math-emu/errors.c:175: warning: format '%ld' expects type 'long int', but argument 3 has type 'u32'
arch/x86/math-emu/errors.c:175: warning: format '%ld' expects type 'long int', but argument 4 has type 'u32'
arch/x86/math-emu/errors.c:175: warning: format '%ld' expects type 'long int', but argument 5 has type 'u32'
arch/x86/math-emu/errors.c:175: warning: format '%ld' expects type 'long int', but argument 6 has type 'u32'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/math-emu/errors.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/math-emu/errors.c b/arch/x86/math-emu/errors.c
index 145b68a99516..59d353d2c599 100644
--- a/arch/x86/math-emu/errors.c
+++ b/arch/x86/math-emu/errors.c
@@ -149,7 +149,7 @@ void FPU_printall(void)
 		printk("SW: invalid operation\n");
 #endif /* DEBUGGING */
 
-	printk(" SW: b=%d st=%ld es=%d sf=%d cc=%d%d%d%d ef=%d%d%d%d%d%d\n", partial_status & 0x8000 ? 1 : 0,	/* busy */
+	printk(" SW: b=%d st=%d es=%d sf=%d cc=%d%d%d%d ef=%d%d%d%d%d%d\n", partial_status & 0x8000 ? 1 : 0,	/* busy */
 	       (partial_status & 0x3800) >> 11,	/* stack top pointer */
 	       partial_status & 0x80 ? 1 : 0,	/* Error summary status */
 	       partial_status & 0x40 ? 1 : 0,	/* Stack flag */
@@ -162,7 +162,7 @@ void FPU_printall(void)
 	       partial_status & SW_Denorm_Op ? 1 : 0,
 	       partial_status & SW_Invalid ? 1 : 0);
 
-	printk(" CW: ic=%d rc=%ld%ld pc=%ld%ld iem=%d     ef=%d%d%d%d%d%d\n",
+	printk(" CW: ic=%d rc=%d%d pc=%d%d iem=%d     ef=%d%d%d%d%d%d\n",
 	       control_word & 0x1000 ? 1 : 0,
 	       (control_word & 0x800) >> 11, (control_word & 0x400) >> 10,
 	       (control_word & 0x200) >> 9, (control_word & 0x100) >> 8,
-- 
cgit v1.2.3-59-g8ed1b


From 9930927f36ac3e39ffa674dc23ef06f13c39cef7 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:32:14 +0100
Subject: x86: introduce REX prefix helper for kprobes

Fold some small ifdefs into a helper function.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes.c | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 4e33329ce8a3..b1804e40235d 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -170,6 +170,19 @@ static void __kprobes set_jmp_op(void *from, void *to)
 	jop->op = RELATIVEJUMP_INSTRUCTION;
 }
 
+/*
+ * Check for the REX prefix which can only exist on X86_64
+ * X86_32 always returns 0
+ */
+static int __kprobes is_REX_prefix(kprobe_opcode_t *insn)
+{
+#ifdef CONFIG_X86_64
+	if ((*insn & 0xf0) == 0x40)
+		return 1;
+#endif
+	return 0;
+}
+
 /*
  * Returns non-zero if opcode is boostable.
  * RIP relative instructions are adjusted at copying time in 64 bits mode
@@ -239,14 +252,14 @@ static int __kprobes is_IF_modifier(kprobe_opcode_t *insn)
 	case 0x9d:		/* popf/popfd */
 		return 1;
 	}
-#ifdef CONFIG_X86_64
+
 	/*
-	 * on 64 bit x86, 0x40-0x4f are prefixes so we need to look
+	 * on X86_64, 0x40-0x4f are REX prefixes so we need to look
 	 * at the next byte instead.. but of course not recurse infinitely
 	 */
-	if (*insn  >= 0x40 && *insn <= 0x4f)
+	if (is_REX_prefix(insn))
 		return is_IF_modifier(++insn);
-#endif
+
 	return 0;
 }
 
@@ -284,7 +297,7 @@ static void __kprobes fix_riprel(struct kprobe *p)
 	}
 
 	/* Skip REX instruction prefix.  */
-	if ((*insn & 0xf0) == 0x40)
+	if (is_REX_prefix(insn))
 		++insn;
 
 	if (*insn == 0x0f) {
@@ -748,11 +761,9 @@ static void __kprobes resume_execution(struct kprobe *p,
 	unsigned long orig_ip = (unsigned long)p->addr;
 	kprobe_opcode_t *insn = p->ainsn.insn;
 
-#ifdef CONFIG_X86_64
 	/*skip the REX prefix*/
-	if (*insn >= 0x40 && *insn <= 0x4f)
+	if (is_REX_prefix(insn))
 		insn++;
-#endif
 
 	regs->flags &= ~X86_EFLAGS_TF;
 	switch (*insn) {
-- 
cgit v1.2.3-59-g8ed1b


From 31f80e45ea26008939790b4363a4fdcff240e0d6 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:32:16 +0100
Subject: x86: kprobes remove fix_riprel #ifdef

Move #ifdef around function definiton into the function and
unconditionally return on X86_32.  Saves an ifdef from the
one callsite.

[ mingo@elte.hu: minor cleanup. ]

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index b1804e40235d..80bcb7635465 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -263,15 +263,16 @@ static int __kprobes is_IF_modifier(kprobe_opcode_t *insn)
 	return 0;
 }
 
-#ifdef CONFIG_X86_64
 /*
  * Adjust the displacement if the instruction uses the %rip-relative
  * addressing mode.
  * If it does, Return the address of the 32-bit displacement word.
  * If not, return null.
+ * Only applicable to 64-bit x86.
  */
 static void __kprobes fix_riprel(struct kprobe *p)
 {
+#ifdef CONFIG_X86_64
 	u8 *insn = p->ainsn.insn;
 	s64 disp;
 	int need_modrm;
@@ -335,15 +336,15 @@ static void __kprobes fix_riprel(struct kprobe *p)
 			*(s32 *)insn = (s32) disp;
 		}
 	}
-}
 #endif
+}
 
 static void __kprobes arch_copy_kprobe(struct kprobe *p)
 {
 	memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
-#ifdef CONFIG_X86_64
+
 	fix_riprel(p);
-#endif
+
 	if (can_boost(p->addr))
 		p->ainsn.boostable = 0;
 	else
-- 
cgit v1.2.3-59-g8ed1b


From e5fc3161969b3c82c8c61af8c8d360e39977ae2e Mon Sep 17 00:00:00 2001
From: Julia Lawall <julia@diku.dk>
Date: Wed, 30 Jan 2008 13:32:17 +0100
Subject: arch/x86/ia32: use time_before, time_before_eq, etc.

The functions time_before, time_before_eq, time_after, and time_after_eq
are more robust for comparing jiffies against other values.

A simplified version of the semantic patch making this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@ change_compare_np @
expression E;
@@

(
- jiffies <= E
+ time_before_eq(jiffies,E)
|
- jiffies >= E
+ time_after_eq(jiffies,E)
|
- jiffies < E
+ time_before(jiffies,E)
|
- jiffies > E
+ time_after(jiffies,E)
)

@ include depends on change_compare_np @
@@

#include <linux/jiffies.h>

@ no_include depends on !include && change_compare_np @
@@

  #include <linux/...>
+ #include <linux/jiffies.h>
// </smpl>

[ mingo@elte.hu: merge to x86.git ]

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/ia32_aout.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index f1a0f83676dc..e4c12079171b 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -25,6 +25,7 @@
 #include <linux/binfmts.h>
 #include <linux/personality.h>
 #include <linux/init.h>
+#include <linux/jiffies.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -359,13 +360,14 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 #ifdef WARN_OLD
 		static unsigned long error_time, error_time2;
 		if ((ex.a_text & 0xfff || ex.a_data & 0xfff) &&
-		    (N_MAGIC(ex) != NMAGIC) && (jiffies-error_time2) > 5*HZ) {
+		    (N_MAGIC(ex) != NMAGIC) &&
+				time_after(jiffies, error_time2 + 5*HZ)) {
 			printk(KERN_NOTICE "executable not page aligned\n");
 			error_time2 = jiffies;
 		}
 
 		if ((fd_offset & ~PAGE_MASK) != 0 &&
-		    (jiffies - error_time) > 5*HZ) {
+			    time_after(jiffies, error_time + 5*HZ)) {
 			printk(KERN_WARNING
 			       "fd_offset is not page aligned. Please convert "
 			       "program: %s\n",
@@ -484,7 +486,7 @@ static int load_aout_library(struct file *file)
 
 #ifdef WARN_OLD
 		static unsigned long error_time;
-		if ((jiffies-error_time) > 5*HZ) {
+		if (time_after(jiffies, error_time + 5*HZ)) {
 			printk(KERN_WARNING
 			       "N_TXTOFF is not page aligned. Please convert "
 			       "library: %s\n",
-- 
cgit v1.2.3-59-g8ed1b


From 4f2479f03c06e29d7d9e1e02191f8b5ba8ad4eef Mon Sep 17 00:00:00 2001
From: Julia Lawall <julia@diku.dk>
Date: Wed, 30 Jan 2008 13:32:18 +0100
Subject: arch/x86/kernel/apm_32.c: use time_before, time_before_eq,

The functions time_before, time_before_eq, time_after, and time_after_eq
are more robust for comparing jiffies against other values.

A simplified version of the semantic patch making this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@ change_compare_np @
expression E;
@@

(
- jiffies <= E
+ time_before_eq(jiffies,E)
|
- jiffies >= E
+ time_after_eq(jiffies,E)
|
- jiffies < E
+ time_before(jiffies,E)
|
- jiffies > E
+ time_after(jiffies,E)
)

@ include depends on change_compare_np @
@@

#include <linux/jiffies.h>

@ no_include depends on !include && change_compare_np @
@@

  #include <linux/...>
+ #include <linux/jiffies.h>
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apm_32.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index e32f6c37db9b..2467df7eca0b 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -227,6 +227,7 @@
 #include <linux/dmi.h>
 #include <linux/suspend.h>
 #include <linux/kthread.h>
+#include <linux/jiffies.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -1287,7 +1288,7 @@ static void check_events(void)
 				       "event 0x%02x\n", event);
 		}
 		if (ignore_bounce
-		    && ((jiffies - last_resume) > bounce_interval))
+		    && (time_after(jiffies, last_resume + bounce_interval)))
 			ignore_bounce = 0;
 
 		switch (event) {
-- 
cgit v1.2.3-59-g8ed1b


From 1d16b53e387b255d8e30f00594220b23b1290e6b Mon Sep 17 00:00:00 2001
From: Julia Lawall <julia@diku.dk>
Date: Wed, 30 Jan 2008 13:32:19 +0100
Subject: arch/x86/kernel/io_apic_{64,32}.c: use time_before

The functions time_before, time_before_eq, time_after, and time_after_eq
are more robust for comparing jiffies against other values.

A simplified version of the semantic patch making this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@ change_compare_np @
expression E;
@@

(
- jiffies <= E
+ time_before_eq(jiffies,E)
|
- jiffies >= E
+ time_after_eq(jiffies,E)
|
- jiffies < E
+ time_before(jiffies,E)
|
- jiffies > E
+ time_after(jiffies,E)
)

@ include depends on change_compare_np @
@@

#include <linux/jiffies.h>

@ no_include depends on !include && change_compare_np @
@@

  #include <linux/...>
+ #include <linux/jiffies.h>
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/io_apic_32.c | 5 +++--
 arch/x86/kernel/io_apic_64.c | 3 ++-
 2 files changed, 5 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index 0d204237489e..4ca548632c8d 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -35,6 +35,7 @@
 #include <linux/htirq.h>
 #include <linux/freezer.h>
 #include <linux/kthread.h>
+#include <linux/jiffies.h>	/* time_after() */
 
 #include <asm/io.h>
 #include <asm/smp.h>
@@ -349,7 +350,7 @@ static void set_ioapic_affinity_irq(unsigned int irq, cpumask_t cpumask)
 # include <asm/processor.h>	/* kernel_thread() */
 # include <linux/kernel_stat.h>	/* kstat */
 # include <linux/slab.h>		/* kmalloc() */
-# include <linux/timer.h>	/* time_after() */
+# include <linux/timer.h>
  
 #define IRQBALANCE_CHECK_ARCH -999
 #define MAX_BALANCED_IRQ_INTERVAL	(5*HZ)
@@ -1898,7 +1899,7 @@ static int __init timer_irq_works(void)
 	 * might have cached one ExtINT interrupt.  Finally, at
 	 * least one tick may be lost due to delays.
 	 */
-	if (jiffies - t1 > 4)
+	if (time_after(jiffies, t1 + 4))
 		return 1;
 
 	return 0;
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index f914d84a21da..1627c0d53e0b 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -32,6 +32,7 @@
 #include <linux/msi.h>
 #include <linux/htirq.h>
 #include <linux/dmar.h>
+#include <linux/jiffies.h>
 #ifdef CONFIG_ACPI
 #include <acpi/acpi_bus.h>
 #endif
@@ -1299,7 +1300,7 @@ static int __init timer_irq_works(void)
 	 */
 
 	/* jiffies wrap? */
-	if (jiffies - t1 > 4)
+	if (time_after(jiffies, t1 + 4))
 		return 1;
 	return 0;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 33cb52438341d6e2d7e06e3b64ed776bc54a2ca4 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:32:19 +0100
Subject: x86: cosmetic fixes fault_{32|64}.c

First step towards unifying these files.
- Checkpatch trailing whitespace fixes
- Checkpatch indentation of switch statement fixes
- Checkpatch single statement ifs need no braces fixes
- Checkpatch consistent spacing after comma fixes
- Introduce defines for pagefault error bits from X86_64 and add useful
  comment from X86_32.  Use these defines in X86_32 where obvious.
- Unify comments between 32|64 bit
- Small ifdef movement for CONFIG_KPROBES in notify_page_fault()
- Introduce X86_64 only case statement

No Functional Changes.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 148 +++++++++++++++++++++++++++---------------------
 arch/x86/mm/fault_64.c | 151 +++++++++++++++++++++++++------------------------
 2 files changed, 160 insertions(+), 139 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index db8d748814e4..bfb0917d699d 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -1,6 +1,4 @@
 /*
- *  linux/arch/i386/mm/fault.c
- *
  *  Copyright (C) 1995  Linus Torvalds
  */
 
@@ -30,11 +28,25 @@
 #include <asm/desc.h>
 #include <asm/segment.h>
 
-extern void die(const char *,struct pt_regs *,long);
+/*
+ * Page fault error code bits
+ *	bit 0 == 0 means no page found, 1 means protection fault
+ *	bit 1 == 0 means read, 1 means write
+ *	bit 2 == 0 means kernel, 1 means user-mode
+ *	bit 3 == 1 means use of reserved bit detected
+ *	bit 4 == 1 means fault was an instruction fetch
+ */
+#define PF_PROT	(1<<0)
+#define PF_WRITE	(1<<1)
+#define PF_USER	(1<<2)
+#define PF_RSVD	(1<<3)
+#define PF_INSTR	(1<<4)
+
+extern void die(const char *, struct pt_regs *, long);
 
-#ifdef CONFIG_KPROBES
 static inline int notify_page_fault(struct pt_regs *regs)
 {
+#ifdef CONFIG_KPROBES
 	int ret = 0;
 
 	/* kprobe_running() needs smp_processor_id() */
@@ -46,13 +58,10 @@ static inline int notify_page_fault(struct pt_regs *regs)
 	}
 
 	return ret;
-}
 #else
-static inline int notify_page_fault(struct pt_regs *regs)
-{
 	return 0;
-}
 #endif
+}
 
 /*
  * Return EIP plus the CS segment base.  The segment limit is also
@@ -65,7 +74,7 @@ static inline int notify_page_fault(struct pt_regs *regs)
  * If CS is no longer a valid code segment, or if EIP is beyond the
  * limit, or if it is a kernel address when CS is not a kernel segment,
  * then the returned value will be greater than *eip_limit.
- * 
+ *
  * This is slow, but is very rarely executed.
  */
 static inline unsigned long get_segment_eip(struct pt_regs *regs,
@@ -84,7 +93,7 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
 
 	/* The standard kernel/user address space limit. */
 	*eip_limit = user_mode(regs) ? USER_DS.seg : KERNEL_DS.seg;
-	
+
 	/* By far the most common cases. */
 	if (likely(SEGMENT_IS_FLAT_CODE(seg)))
 		return ip;
@@ -99,7 +108,7 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
 		return 1;	 /* So that returned ip > *eip_limit. */
 	}
 
-	/* Get the GDT/LDT descriptor base. 
+	/* Get the GDT/LDT descriptor base.
 	   When you look for races in this code remember that
 	   LDT and other horrors are only used in user space. */
 	if (seg & (1<<2)) {
@@ -109,16 +118,16 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
 		desc = (void *)desc + (seg & ~7);
 	} else {
 		/* Must disable preemption while reading the GDT. */
- 		desc = (u32 *)get_cpu_gdt_table(get_cpu());
+		desc = (u32 *)get_cpu_gdt_table(get_cpu());
 		desc = (void *)desc + (seg & ~7);
 	}
 
 	/* Decode the code segment base from the descriptor */
 	base = get_desc_base((struct desc_struct *)desc);
 
-	if (seg & (1<<2)) { 
+	if (seg & (1<<2))
 		mutex_unlock(&current->mm->context.lock);
-	} else
+	else
 		put_cpu();
 
 	/* Adjust EIP and segment limit, and clamp at the kernel limit.
@@ -129,19 +138,19 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
 	return ip + base;
 }
 
-/* 
+/*
  * Sometimes AMD Athlon/Opteron CPUs report invalid exceptions on prefetch.
  * Check that here and ignore it.
  */
 static int __is_prefetch(struct pt_regs *regs, unsigned long addr)
-{ 
+{
 	unsigned long limit;
-	unsigned char *instr = (unsigned char *)get_segment_eip (regs, &limit);
+	unsigned char *instr = (unsigned char *)get_segment_eip(regs, &limit);
 	int scan_more = 1;
-	int prefetch = 0; 
+	int prefetch = 0;
 	int i;
 
-	for (i = 0; scan_more && i < 15; i++) { 
+	for (i = 0; scan_more && i < 15; i++) {
 		unsigned char opcode;
 		unsigned char instr_hi;
 		unsigned char instr_lo;
@@ -149,27 +158,43 @@ static int __is_prefetch(struct pt_regs *regs, unsigned long addr)
 		if (instr > (unsigned char *)limit)
 			break;
 		if (probe_kernel_address(instr, opcode))
-			break; 
+			break;
 
-		instr_hi = opcode & 0xf0; 
-		instr_lo = opcode & 0x0f; 
+		instr_hi = opcode & 0xf0;
+		instr_lo = opcode & 0x0f;
 		instr++;
 
-		switch (instr_hi) { 
+		switch (instr_hi) {
 		case 0x20:
 		case 0x30:
-			/* Values 0x26,0x2E,0x36,0x3E are valid x86 prefixes. */
+			/*
+			 * Values 0x26,0x2E,0x36,0x3E are valid x86 prefixes.
+			 * In X86_64 long mode, the CPU will signal invalid
+			 * opcode if some of these prefixes are present so
+			 * X86_64 will never get here anyway
+			 */
 			scan_more = ((instr_lo & 7) == 0x6);
 			break;
-			
+#ifdef CONFIG_X86_64
+		case 0x40:
+			/*
+			 * In AMD64 long mode 0x40..0x4F are valid REX prefixes
+			 * Need to figure out under what instruction mode the
+			 * instruction was issued. Could check the LDT for lm,
+			 * but for now it's good enough to assume that long
+			 * mode only uses well known segments or kernel.
+			 */
+			scan_more = (!user_mode(regs)) || (regs->cs == __USER_CS);
+			break;
+#endif
 		case 0x60:
 			/* 0x64 thru 0x67 are valid prefixes in all modes. */
 			scan_more = (instr_lo & 0xC) == 0x4;
-			break;		
+			break;
 		case 0xF0:
-			/* 0xF0, 0xF2, and 0xF3 are valid prefixes */
+			/* 0xF0, 0xF2, 0xF3 are valid prefixes in all modes. */
 			scan_more = !instr_lo || (instr_lo>>1) == 1;
-			break;			
+			break;
 		case 0x00:
 			/* Prefetch instruction is 0x0F0D or 0x0F18 */
 			scan_more = 0;
@@ -179,11 +204,11 @@ static int __is_prefetch(struct pt_regs *regs, unsigned long addr)
 				break;
 			prefetch = (instr_lo == 0xF) &&
 				(opcode == 0x0D || opcode == 0x18);
-			break;			
+			break;
 		default:
 			scan_more = 0;
 			break;
-		} 
+		}
 	}
 	return prefetch;
 }
@@ -199,7 +224,7 @@ static inline int is_prefetch(struct pt_regs *regs, unsigned long addr,
 		return __is_prefetch(regs, addr);
 	}
 	return 0;
-} 
+}
 
 static noinline void force_sig_info_fault(int si_signo, int si_code,
 	unsigned long address, struct task_struct *tsk)
@@ -284,19 +309,12 @@ int show_unhandled_signals = 1;
  * This routine handles page faults.  It determines the address,
  * and the problem, and then passes it off to one of the appropriate
  * routines.
- *
- * error_code:
- *	bit 0 == 0 means no page found, 1 means protection fault
- *	bit 1 == 0 means read, 1 means write
- *	bit 2 == 0 means kernel, 1 means user-mode
- *	bit 3 == 1 means use of reserved bit detected
- *	bit 4 == 1 means fault was an instruction fetch
  */
 void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 {
 	struct task_struct *tsk;
 	struct mm_struct *mm;
-	struct vm_area_struct * vma;
+	struct vm_area_struct *vma;
 	unsigned long address;
 	int write, si_code;
 	int fault;
@@ -307,7 +325,7 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	trace_hardirqs_fixup();
 
 	/* get the address */
-        address = read_cr2();
+	address = read_cr2();
 
 	tsk = current;
 
@@ -350,7 +368,7 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 
 	/*
 	 * If we're in an interrupt, have no user context or are running in an
-	 * atomic region then we must not take the fault..
+	 * atomic region then we must not take the fault.
 	 */
 	if (in_atomic() || !mm)
 		goto bad_area_nosemaphore;
@@ -371,7 +389,7 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	 * thus avoiding the deadlock.
 	 */
 	if (!down_read_trylock(&mm->mmap_sem)) {
-		if ((error_code & 4) == 0 &&
+		if ((error_code & PF_USER) == 0 &&
 		    !search_exception_tables(regs->ip))
 			goto bad_area_nosemaphore;
 		down_read(&mm->mmap_sem);
@@ -384,7 +402,7 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 		goto good_area;
 	if (!(vma->vm_flags & VM_GROWSDOWN))
 		goto bad_area;
-	if (error_code & 4) {
+	if (error_code & PF_USER) {
 		/*
 		 * Accessing the stack below %sp is always a bug.
 		 * The large cushion allows instructions like enter
@@ -403,19 +421,19 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 good_area:
 	si_code = SEGV_ACCERR;
 	write = 0;
-	switch (error_code & 3) {
-		default:	/* 3: write, present */
-				/* fall through */
-		case 2:		/* write, not present */
-			if (!(vma->vm_flags & VM_WRITE))
-				goto bad_area;
-			write++;
-			break;
-		case 1:		/* read, present */
+	switch (error_code & (PF_PROT|PF_WRITE)) {
+	default:	/* 3: write, present */
+		/* fall through */
+	case PF_WRITE:		/* write, not present */
+		if (!(vma->vm_flags & VM_WRITE))
+			goto bad_area;
+		write++;
+		break;
+	case PF_PROT:		/* read, present */
+		goto bad_area;
+	case 0:			/* read, not present */
+		if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
 			goto bad_area;
-		case 0:		/* read, not present */
-			if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
-				goto bad_area;
 	}
 
  survive:
@@ -457,14 +475,14 @@ bad_area:
 
 bad_area_nosemaphore:
 	/* User mode accesses just cause a SIGSEGV */
-	if (error_code & 4) {
+	if (error_code & PF_USER) {
 		/*
 		 * It's possible to have interrupts off here.
 		 */
 		local_irq_enable();
 
-		/* 
-		 * Valid to do another page fault here because this one came 
+		/*
+		 * Valid to do another page fault here because this one came
 		 * from user space.
 		 */
 		if (is_prefetch(regs, address, error_code))
@@ -492,7 +510,7 @@ bad_area_nosemaphore:
 	 */
 	if (boot_cpu_data.f00f_bug) {
 		unsigned long nr;
-		
+
 		nr = (address - idt_descr.address) >> 3;
 
 		if (nr == 6) {
@@ -507,13 +525,13 @@ no_context:
 	if (fixup_exception(regs))
 		return;
 
-	/* 
+	/*
 	 * Valid to do another page fault here, because if this fault
-	 * had been triggered by is_prefetch fixup_exception would have 
+	 * had been triggered by is_prefetch fixup_exception would have
 	 * handled it.
 	 */
- 	if (is_prefetch(regs, address, error_code))
- 		return;
+	if (is_prefetch(regs, address, error_code))
+		return;
 
 /*
  * Oops. The kernel tried to access some bad page. We'll have to
@@ -541,7 +559,7 @@ no_context:
 		else
 			printk(KERN_ALERT "BUG: unable to handle kernel paging"
 					" request");
-		printk(" at virtual address %08lx\n",address);
+		printk(" at virtual address %08lx\n", address);
 		printk(KERN_ALERT "printing ip: %08lx ", regs->ip);
 
 		page = read_cr3();
@@ -605,7 +623,7 @@ do_sigbus:
 	up_read(&mm->mmap_sem);
 
 	/* Kernel mode? Handle exceptions or die */
-	if (!(error_code & 4))
+	if (!(error_code & PF_USER))
 		goto no_context;
 
 	/* User space => ok to do another page fault */
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 3a94941578fa..7e98a7691283 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -1,6 +1,4 @@
 /*
- *  linux/arch/x86-64/mm/fault.c
- *
  *  Copyright (C) 1995  Linus Torvalds
  *  Copyright (C) 2001,2002 Andi Kleen, SuSE Labs.
  */
@@ -33,16 +31,23 @@
 #include <asm/proto.h>
 #include <asm-generic/sections.h>
 
-/* Page fault error code bits */
-#define PF_PROT	(1<<0)		/* or no page found */
+/*
+ * Page fault error code bits
+ *	bit 0 == 0 means no page found, 1 means protection fault
+ *	bit 1 == 0 means read, 1 means write
+ *	bit 2 == 0 means kernel, 1 means user-mode
+ *	bit 3 == 1 means use of reserved bit detected
+ *	bit 4 == 1 means fault was an instruction fetch
+ */
+#define PF_PROT	(1<<0)
 #define PF_WRITE	(1<<1)
 #define PF_USER	(1<<2)
 #define PF_RSVD	(1<<3)
 #define PF_INSTR	(1<<4)
 
-#ifdef CONFIG_KPROBES
 static inline int notify_page_fault(struct pt_regs *regs)
 {
+#ifdef CONFIG_KPROBES
 	int ret = 0;
 
 	/* kprobe_running() needs smp_processor_id() */
@@ -54,75 +59,75 @@ static inline int notify_page_fault(struct pt_regs *regs)
 	}
 
 	return ret;
-}
 #else
-static inline int notify_page_fault(struct pt_regs *regs)
-{
 	return 0;
-}
 #endif
+}
 
 /* Sometimes the CPU reports invalid exceptions on prefetch.
    Check that here and ignore.
    Opcode checker based on code by Richard Brunner */
 static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr,
 				unsigned long error_code)
-{ 
+{
 	unsigned char *instr;
 	int scan_more = 1;
-	int prefetch = 0; 
+	int prefetch = 0;
 	unsigned char *max_instr;
 
 	/* If it was a exec fault ignore */
 	if (error_code & PF_INSTR)
 		return 0;
-	
+
 	instr = (unsigned char __user *)convert_rip_to_linear(current, regs);
 	max_instr = instr + 15;
 
 	if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE)
 		return 0;
 
-	while (scan_more && instr < max_instr) { 
+	while (scan_more && instr < max_instr) {
 		unsigned char opcode;
 		unsigned char instr_hi;
 		unsigned char instr_lo;
 
 		if (probe_kernel_address(instr, opcode))
-			break; 
+			break;
 
-		instr_hi = opcode & 0xf0; 
-		instr_lo = opcode & 0x0f; 
+		instr_hi = opcode & 0xf0;
+		instr_lo = opcode & 0x0f;
 		instr++;
 
-		switch (instr_hi) { 
+		switch (instr_hi) {
 		case 0x20:
 		case 0x30:
-			/* Values 0x26,0x2E,0x36,0x3E are valid x86
-			   prefixes.  In long mode, the CPU will signal
-			   invalid opcode if some of these prefixes are
-			   present so we will never get here anyway */
+			/*
+			 * Values 0x26,0x2E,0x36,0x3E are valid x86 prefixes.
+			 * In X86_64 long mode, the CPU will signal invalid
+			 * opcode if some of these prefixes are present so
+			 * X86_64 will never get here anyway
+			 */
 			scan_more = ((instr_lo & 7) == 0x6);
 			break;
-			
+#ifdef CONFIG_X86_64
 		case 0x40:
-			/* In AMD64 long mode, 0x40 to 0x4F are valid REX prefixes
-			   Need to figure out under what instruction mode the
-			   instruction was issued ... */
-			/* Could check the LDT for lm, but for now it's good
-			   enough to assume that long mode only uses well known
-			   segments or kernel. */
+			/*
+			 * In AMD64 long mode 0x40..0x4F are valid REX prefixes
+			 * Need to figure out under what instruction mode the
+			 * instruction was issued. Could check the LDT for lm,
+			 * but for now it's good enough to assume that long
+			 * mode only uses well known segments or kernel.
+			 */
 			scan_more = (!user_mode(regs)) || (regs->cs == __USER_CS);
 			break;
-			
+#endif
 		case 0x60:
 			/* 0x64 thru 0x67 are valid prefixes in all modes. */
 			scan_more = (instr_lo & 0xC) == 0x4;
-			break;		
+			break;
 		case 0xF0:
 			/* 0xF0, 0xF2, and 0xF3 are valid prefixes in all modes. */
 			scan_more = !instr_lo || (instr_lo>>1) == 1;
-			break;			
+			break;
 		case 0x00:
 			/* Prefetch instruction is 0x0F0D or 0x0F18 */
 			scan_more = 0;
@@ -130,20 +135,20 @@ static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr,
 				break;
 			prefetch = (instr_lo == 0xF) &&
 				(opcode == 0x0D || opcode == 0x18);
-			break;			
+			break;
 		default:
 			scan_more = 0;
 			break;
-		} 
+		}
 	}
 	return prefetch;
 }
 
-static int bad_address(void *p) 
-{ 
+static int bad_address(void *p)
+{
 	unsigned long dummy;
 	return probe_kernel_address((unsigned long *)p, dummy);
-} 
+}
 
 void dump_pagetable(unsigned long address)
 {
@@ -154,11 +159,11 @@ void dump_pagetable(unsigned long address)
 
 	pgd = (pgd_t *)read_cr3();
 
-	pgd = __va((unsigned long)pgd & PHYSICAL_PAGE_MASK); 
+	pgd = __va((unsigned long)pgd & PHYSICAL_PAGE_MASK);
 	pgd += pgd_index(address);
 	if (bad_address(pgd)) goto bad;
 	printk("PGD %lx ", pgd_val(*pgd));
-	if (!pgd_present(*pgd)) goto ret; 
+	if (!pgd_present(*pgd)) goto ret;
 
 	pud = pud_offset(pgd, address);
 	if (bad_address(pud)) goto bad;
@@ -172,7 +177,7 @@ void dump_pagetable(unsigned long address)
 
 	pte = pte_offset_kernel(pmd, address);
 	if (bad_address(pte)) goto bad;
-	printk("PTE %lx", pte_val(*pte)); 
+	printk("PTE %lx", pte_val(*pte));
 ret:
 	printk("\n");
 	return;
@@ -180,7 +185,7 @@ bad:
 	printk("BAD\n");
 }
 
-static const char errata93_warning[] = 
+static const char errata93_warning[] =
 KERN_ERR "******* Your BIOS seems to not contain a fix for K8 errata #93\n"
 KERN_ERR "******* Working around it, but it may cause SEGVs or burn power.\n"
 KERN_ERR "******* Please consider a BIOS update.\n"
@@ -188,31 +193,31 @@ KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
 
 /* Workaround for K8 erratum #93 & buggy BIOS.
    BIOS SMM functions are required to use a specific workaround
-   to avoid corruption of the 64bit RIP register on C stepping K8. 
-   A lot of BIOS that didn't get tested properly miss this. 
+   to avoid corruption of the 64bit RIP register on C stepping K8.
+   A lot of BIOS that didn't get tested properly miss this.
    The OS sees this as a page fault with the upper 32bits of RIP cleared.
    Try to work around it here.
    Note we only handle faults in kernel here. */
 
-static int is_errata93(struct pt_regs *regs, unsigned long address) 
+static int is_errata93(struct pt_regs *regs, unsigned long address)
 {
 	static int warned;
 	if (address != regs->ip)
 		return 0;
-	if ((address >> 32) != 0) 
+	if ((address >> 32) != 0)
 		return 0;
 	address |= 0xffffffffUL << 32;
-	if ((address >= (u64)_stext && address <= (u64)_etext) || 
-	    (address >= MODULES_VADDR && address <= MODULES_END)) { 
+	if ((address >= (u64)_stext && address <= (u64)_etext) ||
+	    (address >= MODULES_VADDR && address <= MODULES_END)) {
 		if (!warned) {
-			printk(errata93_warning); 		
+			printk(errata93_warning);
 			warned = 1;
 		}
 		regs->ip = address;
 		return 1;
 	}
 	return 0;
-} 
+}
 
 static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
 				 unsigned long error_code)
@@ -296,7 +301,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 {
 	struct task_struct *tsk;
 	struct mm_struct *mm;
-	struct vm_area_struct * vma;
+	struct vm_area_struct *vma;
 	unsigned long address;
 	int write, fault;
 	unsigned long flags;
@@ -360,8 +365,8 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 		pgtable_bad(address, regs, error_code);
 
 	/*
-	 * If we're in an interrupt or have no user
-	 * context, we must not take the fault..
+	 * If we're in an interrupt, have no user context or are running in an
+	 * atomic region then we must not take the fault.
 	 */
 	if (unlikely(in_atomic() || !mm))
 		goto bad_area_nosemaphore;
@@ -403,7 +408,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 		goto good_area;
 	if (!(vma->vm_flags & VM_GROWSDOWN))
 		goto bad_area;
-	if (error_code & 4) {
+	if (error_code & PF_USER) {
 		/* Allow userspace just enough access below the stack pointer
 		 * to let the 'enter' instruction work.
 		 */
@@ -420,18 +425,18 @@ good_area:
 	info.si_code = SEGV_ACCERR;
 	write = 0;
 	switch (error_code & (PF_PROT|PF_WRITE)) {
-		default:	/* 3: write, present */
-			/* fall through */
-		case PF_WRITE:		/* write, not present */
-			if (!(vma->vm_flags & VM_WRITE))
-				goto bad_area;
-			write++;
-			break;
-		case PF_PROT:		/* read, present */
+	default:	/* 3: write, present */
+		/* fall through */
+	case PF_WRITE:		/* write, not present */
+		if (!(vma->vm_flags & VM_WRITE))
+			goto bad_area;
+		write++;
+		break;
+	case PF_PROT:		/* read, present */
+		goto bad_area;
+	case 0:			/* read, not present */
+		if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
 			goto bad_area;
-		case 0:			/* read, not present */
-			if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
-				goto bad_area;
 	}
 
 	/*
@@ -491,7 +496,7 @@ bad_area_nosemaphore:
 					tsk->comm, tsk->pid, address, regs->ip,
 					regs->sp, error_code);
 		}
-       
+
 		tsk->thread.cr2 = address;
 		/* Kernel addresses are always protection faults */
 		tsk->thread.error_code = error_code | (address >= TASK_SIZE);
@@ -505,21 +510,19 @@ bad_area_nosemaphore:
 	}
 
 no_context:
-	
 	/* Are we prepared to handle this kernel fault?  */
-	if (fixup_exception(regs)) {
+	if (fixup_exception(regs))
 		return;
-	}
 
-	/* 
+	/*
 	 * Hall of shame of CPU/BIOS bugs.
 	 */
 
- 	if (is_prefetch(regs, address, error_code))
- 		return;
+	if (is_prefetch(regs, address, error_code))
+		return;
 
 	if (is_errata93(regs, address))
-		return; 
+		return;
 
 /*
  * Oops. The kernel tried to access some bad page. We'll have to
@@ -532,7 +535,7 @@ no_context:
 		printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
 	else
 		printk(KERN_ALERT "Unable to handle kernel paging request");
-	printk(" at %016lx RIP: \n" KERN_ALERT,address);
+	printk(" at %016lx RIP: \n" KERN_ALERT, address);
 	printk_address(regs->ip);
 	dump_pagetable(address);
 	tsk->thread.cr2 = address;
@@ -582,7 +585,7 @@ LIST_HEAD(pgd_list);
 
 void vmalloc_sync_all(void)
 {
-	/* Note that races in the updates of insync and start aren't 
+	/* Note that races in the updates of insync and start aren't
 	   problematic:
 	   insync can only get set bits added, and updates to start are only
 	   improving performance (without affecting correctness if undone). */
@@ -614,6 +617,6 @@ void vmalloc_sync_all(void)
 	}
 	/* Check that there is no need to do the same for the modules area. */
 	BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL));
-	BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) == 
+	BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==
 				(__START_KERNEL & PGDIR_MASK)));
 }
-- 
cgit v1.2.3-59-g8ed1b


From b97601563704751162b122c652d7f390b8f480d2 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:32:19 +0100
Subject: x86: kprobes change kprobe_handler flow

Make the control flow of kprobe_handler more obvious.

Collapse the separate if blocks/gotos with if/else blocks
this unifies the duplication of the check for a breakpoint
instruction race with another cpu.

Create two jump targets:
	preempt_out: re-enables preemption before returning ret
	out: only returns ret

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes.c | 60 ++++++++++++++++++++++-------------------------
 1 file changed, 28 insertions(+), 32 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 80bcb7635465..a72e02bf1135 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -494,32 +494,28 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 	preempt_disable();
 	kcb = get_kprobe_ctlblk();
 
-	/* Check we're not actually recursing */
-	if (kprobe_running()) {
-		p = get_kprobe(addr);
-		if (p) {
+	p = get_kprobe(addr);
+	if (p) {
+		/* Check we're not actually recursing */
+		if (kprobe_running()) {
 			ret = reenter_kprobe(p, regs, kcb);
 			if (kcb->kprobe_status == KPROBE_REENTER)
-				return 1;
+			{
+				ret = 1;
+				goto out;
+			}
+			goto preempt_out;
 		} else {
-			if (*addr != BREAKPOINT_INSTRUCTION) {
-			/* The breakpoint instruction was removed by
-			 * another cpu right after we hit, no further
-			 * handling of this interrupt is appropriate
-			 */
-				regs->ip = (unsigned long)addr;
+			set_current_kprobe(p, regs, kcb);
+			kcb->kprobe_status = KPROBE_HIT_ACTIVE;
+			if (p->pre_handler && p->pre_handler(p, regs))
+			{
+				/* handler set things up, skip ss setup */
 				ret = 1;
-				goto no_kprobe;
+				goto out;
 			}
-			p = __get_cpu_var(current_kprobe);
-			if (p->break_handler && p->break_handler(p, regs))
-				goto ss_probe;
 		}
-		goto no_kprobe;
-	}
-
-	p = get_kprobe(addr);
-	if (!p) {
+	} else {
 		if (*addr != BREAKPOINT_INSTRUCTION) {
 			/*
 			 * The breakpoint instruction was removed right
@@ -532,34 +528,34 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 			 */
 			regs->ip = (unsigned long)addr;
 			ret = 1;
+			goto preempt_out;
+		}
+		if (kprobe_running()) {
+			p = __get_cpu_var(current_kprobe);
+			if (p->break_handler && p->break_handler(p, regs))
+				goto ss_probe;
 		}
 		/* Not one of ours: let kernel handle it */
-		goto no_kprobe;
+		goto preempt_out;
 	}
 
-	set_current_kprobe(p, regs, kcb);
-	kcb->kprobe_status = KPROBE_HIT_ACTIVE;
-
-	if (p->pre_handler && p->pre_handler(p, regs))
-		/* handler has already set things up, so skip ss setup */
-		return 1;
-
 ss_probe:
+	ret = 1;
 #if !defined(CONFIG_PREEMPT) || defined(CONFIG_PM)
 	if (p->ainsn.boostable == 1 && !p->post_handler) {
 		/* Boost up -- we can execute copied instructions directly */
 		reset_current_kprobe();
 		regs->ip = (unsigned long)p->ainsn.insn;
-		preempt_enable_no_resched();
-		return 1;
+		goto preempt_out;
 	}
 #endif
 	prepare_singlestep(p, regs);
 	kcb->kprobe_status = KPROBE_HIT_SS;
-	return 1;
+	goto out;
 
-no_kprobe:
+preempt_out:
 	preempt_enable_no_resched();
+out:
 	return ret;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 0a6ef376d4baf298aaa2db71794df821a0d7795c Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:32:20 +0100
Subject: x86: unification of arch/x86/Makefiles

Unify the 32 and 64 bit specific Makefiles.
The unification was simplest to do in one step although the
readability of the patch suffers a bit from this.

Noteworthy remarks on the unification:
- The 64 bit cpu stuff should be moved to Makefile_32.cpu
  but I did not feel confident doing it due to subtle differences
- The use of cflags-y were abandoned since we have seen one bug where
  we did wrong due to missing assignment to KBUILD_CFLAGS.
  The cc-option marcro uses KBUILD_CFLAGS.
- The "No need to remake" line are deleted. It caused "make -B" to fail
- For 64 bit the sub architecture stuff is not used.
- The way head64.o is specified could be nicer - but it awaits the
  introduction of head32.o (which seems like a win to introduce for readability)
- Patch is checkpatch clean

Patch is tested by doing a defconfig build for i386 and x86_64 and in both
cases monitoring that only relevant files were recompiled when applying
the patch.

[ mingo@elte.hu: build fix ]

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Makefile    | 237 ++++++++++++++++++++++++++++++++++++++++++++++++++-
 arch/x86/Makefile_32 | 177 --------------------------------------
 arch/x86/Makefile_64 | 142 ------------------------------
 3 files changed, 233 insertions(+), 323 deletions(-)
 delete mode 100644 arch/x86/Makefile_32
 delete mode 100644 arch/x86/Makefile_64

(limited to 'arch')

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 7aa1dc6d67c8..d3debde0ce0b 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -7,13 +7,242 @@ else
         KBUILD_DEFCONFIG := $(ARCH)_defconfig
 endif
 
-# No need to remake these files
-$(srctree)/arch/x86/Makefile%: ;
+# BITS is used as extension for files which are available in a 32 bit
+# and a 64 bit version to simplify shared Makefiles.
+# e.g.: obj-y += foo_$(BITS).o
+export BITS
 
 ifeq ($(CONFIG_X86_32),y)
+        BITS := 32
         UTS_MACHINE := i386
-        include $(srctree)/arch/x86/Makefile_32
+
+        HAS_BIARCH := $(call cc-option-yn, -m32)
+        ifeq ($(HAS_BIARCH),y)
+                AS := $(AS) --32
+                LD := $(LD) -m elf_i386
+                CC := $(CC) -m32
+        endif
+
+        ifdef CONFIG_RELOCATABLE
+                LDFLAGS_vmlinux := --emit-relocs
+        endif
+        CHECKFLAGS += -D__i386__
+
+        KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return
+
+        # prevent gcc from keeping the stack 16 byte aligned
+        KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
+
+        # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
+        # a lot more stack due to the lack of sharing of stacklots:
+        KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
+                echo $(call cc-option,-fno-unit-at-a-time); fi ;)
+
+        # CPU-specific tuning. Anything which can be shared with UML should go here.
+        include $(srctree)/arch/x86/Makefile_32.cpu
+        KBUILD_CFLAGS += $(cflags-y)
+
+        # temporary until string.h is fixed
+        KBUILD_CFLAGS += -ffreestanding
 else
+        BITS := 64
         UTS_MACHINE := x86_64
-        include $(srctree)/arch/x86/Makefile_64
+        CHECKFLAGS += -D__x86_64__ -m64
+
+        KBUILD_AFLAGS += -m64
+        KBUILD_CFLAGS += -m64
+
+        # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
+        cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
+        cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
+
+        cflags-$(CONFIG_MCORE2) += \
+                $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
+        cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
+        KBUILD_CFLAGS += $(cflags-y)
+
+        KBUILD_CFLAGS += -mno-red-zone
+        KBUILD_CFLAGS += -mcmodel=kernel
+
+        KBUILD_CFLAGS += -Wno-sign-compare
+        KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
+        # -funit-at-a-time shrinks the kernel .text considerably
+        # unfortunately it makes reading oopses harder.
+        KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
+
+        # prevent gcc from generating any FP code by mistake
+        KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
+        # this works around some issues with generating unwind tables in older gccs
+        # newer gccs do it by default
+        KBUILD_CFLAGS += -maccumulate-outgoing-args
+
+        stackp := $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh
+        stackp-$(CONFIG_CC_STACKPROTECTOR) := $(shell $(stackp) \
+                "$(CC)" -fstack-protector )
+        stackp-$(CONFIG_CC_STACKPROTECTOR_ALL) += $(shell $(stackp) \
+                "$(CC)" -fstack-protector-all )
+
+        KBUILD_CFLAGS += $(stackp-y)
+endif
+
+# Stackpointer is addressed different for 32 bit and 64 bit x86
+sp-$(CONFIG_X86_32) := esp
+sp-$(CONFIG_X86_64) := rsp
+
+# do binutils support CFI?
+cfi := $(call as-instr,.cfi_startproc\n.cfi_rel_offset $(sp-y)$(comma)0\n.cfi_endproc,-DCONFIG_AS_CFI=1)
+# is .cfi_signal_frame supported too?
+cfi-sigframe := $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1)
+KBUILD_AFLAGS += $(cfi) $(cfi-sigframe)
+KBUILD_CFLAGS += $(cfi) $(cfi-sigframe)
+
+LDFLAGS := -m elf_$(UTS_MACHINE)
+OBJCOPYFLAGS := -O binary -R .note -R .comment -S
+KBUILD_CFLAGS += -pipe
+
+###
+# Sub architecture support
+# fcore-y is linked before mcore-y files.
+
+# Default subarch .c files
+mcore-y  := arch/x86/mach-default/
+
+# Voyager subarch support
+mflags-$(CONFIG_X86_VOYAGER)	:= -Iinclude/asm-x86/mach-voyager
+mcore-$(CONFIG_X86_VOYAGER)	:= arch/x86/mach-voyager/
+
+# VISWS subarch support
+mflags-$(CONFIG_X86_VISWS)	:= -Iinclude/asm-x86/mach-visws
+mcore-$(CONFIG_X86_VISWS)	:= arch/x86/mach-visws/
+
+# NUMAQ subarch support
+mflags-$(CONFIG_X86_NUMAQ)	:= -Iinclude/asm-x86/mach-numaq
+mcore-$(CONFIG_X86_NUMAQ)	:= arch/x86/mach-default/
+
+# BIGSMP subarch support
+mflags-$(CONFIG_X86_BIGSMP)	:= -Iinclude/asm-x86/mach-bigsmp
+mcore-$(CONFIG_X86_BIGSMP)	:= arch/x86/mach-default/
+
+#Summit subarch support
+mflags-$(CONFIG_X86_SUMMIT)	:= -Iinclude/asm-x86/mach-summit
+mcore-$(CONFIG_X86_SUMMIT)	:= arch/x86/mach-default/
+
+# generic subarchitecture
+mflags-$(CONFIG_X86_GENERICARCH):= -Iinclude/asm-x86/mach-generic
+fcore-$(CONFIG_X86_GENERICARCH)	+= arch/x86/mach-generic/
+mcore-$(CONFIG_X86_GENERICARCH)	:= arch/x86/mach-default/
+
+
+# ES7000 subarch support
+mflags-$(CONFIG_X86_ES7000)	:= -Iinclude/asm-x86/mach-es7000
+fcore-$(CONFIG_X86_ES7000)	:= arch/x86/mach-es7000/
+mcore-$(CONFIG_X86_ES7000)	:= arch/x86/mach-default/
+
+# default subarch .h files
+mflags-y += -Iinclude/asm-x86/mach-default
+
+# 64 bit does not support subarch support - clear sub arch variables
+fcore-$(CONFIG_X86_64)  :=
+mcore-$(CONFIG_X86_64)  :=
+mflags-$(CONFIG_X86_64) :=
+
+KBUILD_CFLAGS += $(mflags-y)
+KBUILD_AFLAGS += $(mflags-y)
+
+###
+# Kernel objects
+
+head-y                := arch/x86/kernel/head_$(BITS).o
+head-$(CONFIG_X86_64) += arch/x86/kernel/head64.o
+head-y                += arch/x86/kernel/init_task.o
+
+libs-y  += arch/x86/lib/
+
+# Sub architecture files that needs linking first
+core-y += $(fcore-y)
+
+# Xen paravirtualization support
+core-$(CONFIG_XEN) += arch/x86/xen/
+
+# lguest paravirtualization support
+core-$(CONFIG_LGUEST_GUEST) += arch/x86/lguest/
+
+core-y += arch/x86/kernel/
+core-y += arch/x86/mm/
+
+# Remaining sub architecture files
+core-y += $(mcore-y)
+
+core-y += arch/x86/crypto/
+core-y += arch/x86/vdso/
+core-$(CONFIG_IA32_EMULATION) += arch/x86/ia32/
+
+# drivers-y are linked after core-y
+drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
+drivers-$(CONFIG_PCI)            += arch/x86/pci/
+
+# must be linked after kernel/
+drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/
+
+ifeq ($(CONFIG_X86_32),y)
+drivers-$(CONFIG_PM) += arch/x86/power/
+drivers-$(CONFIG_FB) += arch/x86/video/
 endif
+
+####
+# boot loader support. Several targets are kept for legacy purposes
+
+boot := arch/x86/boot
+
+PHONY += zImage bzImage compressed zlilo bzlilo \
+         zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
+
+# Default kernel to build
+all: bzImage
+
+# KBUILD_IMAGE specify target image being built
+                    KBUILD_IMAGE := $(boot)/bzImage
+zImage zlilo zdisk: KBUILD_IMAGE := arch/x86/boot/zImage
+
+zImage bzImage: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
+	$(Q)mkdir -p $(objtree)/arch/$(UTS_MACHINE)/boot
+	$(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/$(UTS_MACHINE)/boot/bzImage
+
+compressed: zImage
+
+zlilo bzlilo: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
+
+zdisk bzdisk: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
+
+fdimage fdimage144 fdimage288 isoimage: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
+
+install: vdso_install
+	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
+
+PHONY += vdso_install
+vdso_install:
+	$(Q)$(MAKE) $(build)=arch/x86/vdso $@
+
+archclean:
+	$(Q)rm -rf $(objtree)/arch/i386
+	$(Q)rm -rf $(objtree)/arch/x86_64
+	$(Q)$(MAKE) $(clean)=$(boot)
+
+define archhelp
+  echo  '* bzImage	- Compressed kernel image (arch/x86/boot/bzImage)'
+  echo  '  install	- Install kernel using'
+  echo  '		   (your) ~/bin/installkernel or'
+  echo  '		   (distribution) /sbin/installkernel or'
+  echo  '		   install to $$(INSTALL_PATH) and run lilo'
+  echo  '  bzdisk       - Create a boot floppy in /dev/fd0'
+  echo  '  fdimage      - Create a boot floppy image'
+  echo  '  isoimage     - Create a boot CD-ROM image'
+endef
+
+CLEAN_FILES += arch/x86/boot/fdimage \
+	       arch/x86/boot/image.iso \
+	       arch/x86/boot/mtools.conf
diff --git a/arch/x86/Makefile_32 b/arch/x86/Makefile_32
deleted file mode 100644
index 5c6724de904e..000000000000
--- a/arch/x86/Makefile_32
+++ /dev/null
@@ -1,177 +0,0 @@
-#
-# i386 Makefile
-#
-# This file is included by the global makefile so that you can add your own
-# architecture-specific flags and dependencies. Remember to do have actions
-# for "archclean" cleaning up for this architecture.
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 1994 by Linus Torvalds
-#
-# 19990713  Artur Skawina <skawina@geocities.com>
-#           Added '-march' and '-mpreferred-stack-boundary' support
-#
-# 20050320  Kianusch Sayah Karadji <kianusch@sk-tech.net>
-#           Added support for GEODE CPU
-
-# BITS is used as extension for files which are available in a 32 bit
-# and a 64 bit version to simplify shared Makefiles.
-# e.g.: obj-y += foo_$(BITS).o
-BITS := 32
-export BITS
-
-HAS_BIARCH      := $(call cc-option-yn, -m32)
-ifeq ($(HAS_BIARCH),y)
-AS              := $(AS) --32
-LD              := $(LD) -m elf_i386
-CC              := $(CC) -m32
-endif
-
-LDFLAGS		:= -m elf_i386
-OBJCOPYFLAGS	:= -O binary -R .note -R .comment -S
-ifdef CONFIG_RELOCATABLE
-LDFLAGS_vmlinux := --emit-relocs
-endif
-CHECKFLAGS	+= -D__i386__
-
-KBUILD_CFLAGS += -pipe -msoft-float -mregparm=3 -freg-struct-return
-
-# prevent gcc from keeping the stack 16 byte aligned
-KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
-
-# CPU-specific tuning. Anything which can be shared with UML should go here.
-include $(srctree)/arch/x86/Makefile_32.cpu
-
-# temporary until string.h is fixed
-cflags-y += -ffreestanding
-
-# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
-# a lot more stack due to the lack of sharing of stacklots:
-KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
-
-# do binutils support CFI?
-cflags-y += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
-KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
-
-# is .cfi_signal_frame supported too?
-cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
-KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
-
-KBUILD_CFLAGS += $(cflags-y)
-
-# Default subarch .c files
-mcore-y  := arch/x86/mach-default
-
-# Voyager subarch support
-mflags-$(CONFIG_X86_VOYAGER)	:= -Iinclude/asm-x86/mach-voyager
-mcore-$(CONFIG_X86_VOYAGER)	:= arch/x86/mach-voyager
-
-# VISWS subarch support
-mflags-$(CONFIG_X86_VISWS)	:= -Iinclude/asm-x86/mach-visws
-mcore-$(CONFIG_X86_VISWS)	:= arch/x86/mach-visws
-
-# NUMAQ subarch support
-mflags-$(CONFIG_X86_NUMAQ)	:= -Iinclude/asm-x86/mach-numaq
-mcore-$(CONFIG_X86_NUMAQ)	:= arch/x86/mach-default
-
-# BIGSMP subarch support
-mflags-$(CONFIG_X86_BIGSMP)	:= -Iinclude/asm-x86/mach-bigsmp
-mcore-$(CONFIG_X86_BIGSMP)	:= arch/x86/mach-default
-
-#Summit subarch support
-mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-x86/mach-summit
-mcore-$(CONFIG_X86_SUMMIT)  := arch/x86/mach-default
-
-# generic subarchitecture
-mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-x86/mach-generic
-mcore-$(CONFIG_X86_GENERICARCH) := arch/x86/mach-default
-core-$(CONFIG_X86_GENERICARCH) += arch/x86/mach-generic/
-
-# ES7000 subarch support
-mflags-$(CONFIG_X86_ES7000)	:= -Iinclude/asm-x86/mach-es7000
-mcore-$(CONFIG_X86_ES7000)	:= arch/x86/mach-default
-core-$(CONFIG_X86_ES7000)	:= arch/x86/mach-es7000/
-
-# Xen paravirtualization support
-core-$(CONFIG_XEN)		+= arch/x86/xen/
-
-# lguest paravirtualization support
-core-$(CONFIG_LGUEST_GUEST)	+= arch/x86/lguest/
-
-# default subarch .h files
-mflags-y += -Iinclude/asm-x86/mach-default
-
-head-y := arch/x86/kernel/head_32.o arch/x86/kernel/init_task.o
-
-libs-y 					+= arch/x86/lib/
-core-y					+= arch/x86/kernel/ \
-					   arch/x86/mm/ \
-					   $(mcore-y)/ \
-					   arch/x86/crypto/ \
-					   arch/x86/vdso/
-drivers-$(CONFIG_MATH_EMULATION)	+= arch/x86/math-emu/
-drivers-$(CONFIG_PCI)			+= arch/x86/pci/
-# must be linked after kernel/
-drivers-$(CONFIG_OPROFILE)		+= arch/x86/oprofile/
-drivers-$(CONFIG_PM)			+= arch/x86/power/
-drivers-$(CONFIG_FB)                    += arch/x86/video/
-
-KBUILD_CFLAGS += $(mflags-y)
-KBUILD_AFLAGS += $(mflags-y)
-
-boot := arch/x86/boot
-
-PHONY += zImage bzImage compressed zlilo bzlilo \
-         zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
-
-all: bzImage
-
-# KBUILD_IMAGE specify target image being built
-                    KBUILD_IMAGE := $(boot)/bzImage
-zImage zlilo zdisk: KBUILD_IMAGE := arch/x86/boot/zImage
-
-zImage bzImage: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
-	$(Q)mkdir -p $(objtree)/arch/i386/boot
-	$(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/i386/boot/bzImage
-
-compressed: zImage
-
-zlilo bzlilo: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
-
-zdisk bzdisk: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
-
-fdimage fdimage144 fdimage288 isoimage: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
-
-install: vdso_install
-	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
-
-PHONY += vdso_install
-vdso_install:
-	$(Q)$(MAKE) $(build)=arch/x86/vdso $@
-
-archclean:
-	$(Q)rm -rf $(objtree)/arch/i386
-	$(Q)rm -rf $(objtree)/arch/x86_64
-	$(Q)$(MAKE) $(clean)=arch/x86/boot
-
-define archhelp
-  echo  '* bzImage	- Compressed kernel image (arch/x86/boot/bzImage)'
-  echo  '  install	- Install kernel using'
-  echo  '		   (your) ~/bin/installkernel or'
-  echo  '		   (distribution) /sbin/installkernel or'
-  echo  '		   install to $$(INSTALL_PATH) and run lilo'
-  echo  '  bzdisk       - Create a boot floppy in /dev/fd0'
-  echo  '  fdimage      - Create a boot floppy image'
-  echo  '  isoimage     - Create a boot CD-ROM image'
-endef
-
-CLEAN_FILES += arch/x86/boot/fdimage \
-	       arch/x86/boot/image.iso \
-	       arch/x86/boot/mtools.conf
diff --git a/arch/x86/Makefile_64 b/arch/x86/Makefile_64
deleted file mode 100644
index d35a0c50b67b..000000000000
--- a/arch/x86/Makefile_64
+++ /dev/null
@@ -1,142 +0,0 @@
-#
-# x86_64 Makefile
-#
-# This file is included by the global makefile so that you can add your own
-# architecture-specific flags and dependencies. Remember to do have actions
-# for "archclean" and "archdep" for cleaning up and making dependencies for
-# this architecture
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 1994 by Linus Torvalds
-#
-# 19990713  Artur Skawina <skawina@geocities.com>
-#           Added '-march' and '-mpreferred-stack-boundary' support
-# 20000913  Pavel Machek <pavel@suse.cz>
-#	    Converted for x86_64 architecture
-# 20010105  Andi Kleen, add IA32 compiler.
-#           ....and later removed it again....
-#
-# $Id: Makefile,v 1.31 2002/03/22 15:56:07 ak Exp $
-
-# BITS is used as extension for files which are available in a 32 bit
-# and a 64 bit version to simplify shared Makefiles.
-# e.g.: obj-y += foo_$(BITS).o
-BITS := 64
-export BITS
-
-LDFLAGS		:= -m elf_x86_64
-OBJCOPYFLAGS	:= -O binary -R .note -R .comment -S
-LDFLAGS_vmlinux :=
-CHECKFLAGS      += -D__x86_64__ -m64
-
-cflags-y	:=
-cflags-kernel-y	:=
-cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
-cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
-# gcc doesn't support -march=core2 yet as of gcc 4.3, but I hope it
-# will eventually. Use -mtune=generic as fallback
-cflags-$(CONFIG_MCORE2) += \
-	$(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
-cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
-
-cflags-y += -m64
-cflags-y += -mno-red-zone
-cflags-y += -mcmodel=kernel
-cflags-y += -pipe
-cflags-y += -Wno-sign-compare
-cflags-y += -fno-asynchronous-unwind-tables
-ifneq ($(CONFIG_DEBUG_INFO),y)
-# -fweb shrinks the kernel a bit, but the difference is very small
-# it also messes up debugging, so don't use it for now.
-#cflags-y += $(call cc-option,-fweb)
-endif
-# -funit-at-a-time shrinks the kernel .text considerably
-# unfortunately it makes reading oopses harder.
-cflags-y += $(call cc-option,-funit-at-a-time)
-# prevent gcc from generating any FP code by mistake
-cflags-y += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
-# this works around some issues with generating unwind tables in older gccs
-# newer gccs do it by default
-cflags-y += -maccumulate-outgoing-args
-
-# do binutils support CFI?
-cflags-y += $(call as-instr,.cfi_startproc\n.cfi_rel_offset rsp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
-KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset rsp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
-
-# is .cfi_signal_frame supported too?
-cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
-KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
-
-cflags-$(CONFIG_CC_STACKPROTECTOR) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector )
-cflags-$(CONFIG_CC_STACKPROTECTOR_ALL) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector-all )
-
-KBUILD_CFLAGS += $(cflags-y)
-CFLAGS_KERNEL += $(cflags-kernel-y)
-KBUILD_AFLAGS += -m64
-
-head-y := arch/x86/kernel/head_64.o arch/x86/kernel/head64.o arch/x86/kernel/init_task.o
-
-libs-y 					+= arch/x86/lib/
-core-y					+= arch/x86/kernel/ \
-					   arch/x86/mm/ \
-					   arch/x86/crypto/ \
-					   arch/x86/vdso/
-core-$(CONFIG_IA32_EMULATION)		+= arch/x86/ia32/
-drivers-$(CONFIG_PCI)			+= arch/x86/pci/
-drivers-$(CONFIG_OPROFILE)		+= arch/x86/oprofile/
-
-boot := arch/x86/boot
-
-PHONY += bzImage bzlilo install archmrproper \
-	 fdimage fdimage144 fdimage288 isoimage archclean
-
-#Default target when executing "make"
-all: bzImage
-
-BOOTIMAGE                     := arch/x86/boot/bzImage
-KBUILD_IMAGE                  := $(BOOTIMAGE)
-
-bzImage: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) $(BOOTIMAGE)
-	$(Q)mkdir -p $(objtree)/arch/x86_64/boot
-	$(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/x86_64/boot/bzImage
-
-bzlilo: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zlilo
-
-bzdisk: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zdisk
-
-fdimage fdimage144 fdimage288 isoimage: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
-
-install: vdso_install
-	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@ 
-
-vdso_install:
-	$(Q)$(MAKE) $(build)=arch/x86/vdso $@
-
-archclean:
-	$(Q)rm -rf $(objtree)/arch/i386
-	$(Q)rm -rf $(objtree)/arch/x86_64
-	$(Q)$(MAKE) $(clean)=$(boot)
-
-define archhelp
-  echo  '* bzImage	- Compressed kernel image (arch/x86/boot/bzImage)'
-  echo  '  install	- Install kernel using'
-  echo  '		   (your) ~/bin/installkernel or'
-  echo  '		   (distribution) /sbin/installkernel or'
-  echo  '		   install to $$(INSTALL_PATH) and run lilo'
-  echo  '  bzdisk       - Create a boot floppy in /dev/fd0'
-  echo  '  fdimage      - Create a boot floppy image'
-  echo  '  isoimage     - Create a boot CD-ROM image'
-endef
-
-CLEAN_FILES += arch/x86/boot/fdimage \
-	       arch/x86/boot/image.iso \
-	       arch/x86/boot/mtools.conf
-
-
-- 
cgit v1.2.3-59-g8ed1b


From 25dfeeb757bdf06521d65973676b21dac1d26d20 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:32:21 +0100
Subject: x86: share more options between 32 and 64 bit build

On recommendation from Andi Kleen share a few more options
between 32 and 64 bit builds.
A defconfig build for i386 did not show any difference in
size of text and data.

The additional shared options are:
-Wno-sign-compare
-fno-asynchronous-unwind-tables
-mno-sse
-mno-mmx
-mno-sse2
-mno-3dnow

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Makefile | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index d3debde0ce0b..0c5b4072d134 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -64,14 +64,10 @@ else
         KBUILD_CFLAGS += -mno-red-zone
         KBUILD_CFLAGS += -mcmodel=kernel
 
-        KBUILD_CFLAGS += -Wno-sign-compare
-        KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
         # -funit-at-a-time shrinks the kernel .text considerably
         # unfortunately it makes reading oopses harder.
         KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
 
-        # prevent gcc from generating any FP code by mistake
-        KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
         # this works around some issues with generating unwind tables in older gccs
         # newer gccs do it by default
         KBUILD_CFLAGS += -maccumulate-outgoing-args
@@ -98,7 +94,15 @@ KBUILD_CFLAGS += $(cfi) $(cfi-sigframe)
 
 LDFLAGS := -m elf_$(UTS_MACHINE)
 OBJCOPYFLAGS := -O binary -R .note -R .comment -S
+
+# Speed up the build
 KBUILD_CFLAGS += -pipe
+# Workaround for a gcc prelease that unfortunately was shipped in a suse release
+KBUILD_CFLAGS += -Wno-sign-compare
+#
+KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
+# prevent gcc from generating any FP code by mistake
+KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
 
 ###
 # Sub architecture support
-- 
cgit v1.2.3-59-g8ed1b


From 4ba7e5cd499a72983e6d011e76c1d8fad896d310 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:32:23 +0100
Subject: x86: biarch support for 32 bit builds beautified

There were no reason to mess around with CC, AS and LD.
Fixing this up avoided duplicated option for ld.

A small fixlet were needed in boot/Makefile which assumed
that CC were modified.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Makefile      | 11 ++++-------
 arch/x86/boot/Makefile |  4 +---
 2 files changed, 5 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 0c5b4072d134..bfe061de8ed6 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -15,18 +15,15 @@ export BITS
 ifeq ($(CONFIG_X86_32),y)
         BITS := 32
         UTS_MACHINE := i386
+        CHECKFLAGS += -D__i386__
 
-        HAS_BIARCH := $(call cc-option-yn, -m32)
-        ifeq ($(HAS_BIARCH),y)
-                AS := $(AS) --32
-                LD := $(LD) -m elf_i386
-                CC := $(CC) -m32
-        endif
+        biarch := $(call cc-option,-m32)
+        KBUILD_AFLAGS += $(biarch)
+        KBUILD_CFLAGS += $(biarch)
 
         ifdef CONFIG_RELOCATABLE
                 LDFLAGS_vmlinux := --emit-relocs
         endif
-        CHECKFLAGS += -D__i386__
 
         KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return
 
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 7a3116ccf387..dcad6507f196 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -49,10 +49,7 @@ HOSTCFLAGS_build.o := $(LINUXINCLUDE)
 
 # How to compile the 16-bit code.  Note we always compile for -march=i386,
 # that way we can complain to the user if the CPU is insufficient.
-cflags-$(CONFIG_X86_32) :=
-cflags-$(CONFIG_X86_64) := -m32
 KBUILD_CFLAGS	:= $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
-		   $(cflags-y) \
 		   -Wall -Wstrict-prototypes \
 		   -march=i386 -mregparm=3 \
 		   -include $(srctree)/$(src)/code16gcc.h \
@@ -62,6 +59,7 @@ KBUILD_CFLAGS	:= $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
 			$(call cc-option, -fno-unit-at-a-time)) \
 		   $(call cc-option, -fno-stack-protector) \
 		   $(call cc-option, -mpreferred-stack-boundary=2)
+KBUILD_CFLAGS +=   $(call cc-option,-m32)
 KBUILD_AFLAGS	:= $(KBUILD_CFLAGS) -D__ASSEMBLY__
 
 $(obj)/zImage:  IMAGE_OFFSET := 0x1000
-- 
cgit v1.2.3-59-g8ed1b


From d531b4fd2fa3c619d973ea639476f172d5a3732d Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:32:27 +0100
Subject: x86: teach vdso to clean

A few files remained after 'make clean' in arch/x86/vdso/.
Teach vdso to clean up those files in a bit brutal fashion.
The filenames are just hardcoded in the Makefile.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roland McGrath <roland@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/vdso/Makefile | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index 58708f6c1329..d28dda574700 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -130,3 +130,5 @@ $(vdso-install-y): %.so: $(obj)/%.so.dbg FORCE
 
 PHONY += vdso_install $(vdso-install-y)
 vdso_install: $(vdso-install-y)
+
+clean-files := vdso32-syscall* vdso32-sysenter* vdso32-int80*
-- 
cgit v1.2.3-59-g8ed1b


From 6b0c3d44d33e9429dbc568dc7fd3aee3774c5707 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:32:27 +0100
Subject: x86: unify arch/x86/kernel/Makefile(s)

Combine the 32 and 64 bit specific Makefiles in one file.
While doing so link order was (almost) preserved on 32 bit
but on 64 bit link order changed a lot.

Patch was checked with defconfig + allyesconfig builds.
The same .o files were linked in these configurations.

To keep readability of the Makefiles a few Kconfig
symbols was added/modified and it was checked that
they were not used anywhere else.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig            | 10 ++++-
 arch/x86/Kconfig.debug      |  3 +-
 arch/x86/kernel/Makefile    | 93 +++++++++++++++++++++++++++++++++++++++++----
 arch/x86/kernel/Makefile_32 | 54 --------------------------
 arch/x86/kernel/Makefile_64 | 52 -------------------------
 5 files changed, 95 insertions(+), 117 deletions(-)
 delete mode 100644 arch/x86/kernel/Makefile_32
 delete mode 100644 arch/x86/kernel/Makefile_64

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fa6fa52248d9..3d2c8dfba915 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -129,9 +129,17 @@ config GENERIC_PENDING_IRQ
 
 config X86_SMP
 	bool
-	depends on X86_32 && SMP && !X86_VOYAGER
+	depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64)
 	default y
 
+config X86_32_SMP
+	def_bool y
+	depends on X86_32 && SMP
+
+config X86_64_SMP
+	def_bool y
+	depends on X86_64 && SMP
+
 config X86_HT
 	bool
 	depends on SMP
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index b747ab38814d..660200915baa 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -75,8 +75,7 @@ config X86_FIND_SMP_CONFIG
 
 config X86_MPPARSE
 	def_bool y
-	depends on X86_LOCAL_APIC && !X86_VISWS
-	depends on X86_32
+	depends on (X86_32 && (X86_LOCAL_APIC && !X86_VISWS)) || X86_64
 
 config DOUBLEFAULT
 	default y
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 38573340b143..0903bbf0ca4d 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -1,9 +1,86 @@
-ifeq ($(CONFIG_X86_32),y)
-include ${srctree}/arch/x86/kernel/Makefile_32
-else
-include ${srctree}/arch/x86/kernel/Makefile_64
-endif
+#
+# Makefile for the linux kernel.
+#
+
+extra-y                := head_$(BITS).o init_task.o vmlinux.lds
+extra-$(CONFIG_X86_64) += head64.o
+
+CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE)
+CFLAGS_vsyscall_64.o := $(PROFILING) -g0
+
+obj-y			:= process_$(BITS).o signal_$(BITS).o entry_$(BITS).o
+obj-y			+= traps_$(BITS).o irq_$(BITS).o
+obj-y			+= time_$(BITS).o ioport_$(BITS).o ldt.o
+obj-y			+= setup_$(BITS).o i8259_$(BITS).o
+obj-$(CONFIG_X86_32)	+= sys_i386_32.o i386_ksyms_32.o
+obj-$(CONFIG_X86_64)	+= sys_x86_64.o x8664_ksyms_64.o
+obj-$(CONFIG_X86_64)	+= syscall_64.o vsyscall_64.o setup64.o
+obj-y			+= pci-dma_$(BITS).o  bootflag.o e820_$(BITS).o
+obj-y			+= quirks.o i8237.o topology.o
+obj-y			+= alternative.o i8253.o
+obj-$(CONFIG_X86_64)	+= pci-nommu_64.o bugs_64.o
+obj-y			+= tsc_$(BITS).o io_delay.o rtc.o
+
+obj-y				+= i387.o
+obj-y				+= ptrace.o
+obj-y				+= ds.o
+obj-$(CONFIG_X86_32)		+= tls.o
+obj-$(CONFIG_IA32_EMULATION)	+= tls.o
+obj-y				+= step.o
+obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
+obj-y				+= cpu/
+obj-y				+= acpi/
+obj-$(CONFIG_X86_BIOS_REBOOT)	+= reboot_32.o
+obj-$(CONFIG_X86_64)            += reboot_64.o
+obj-$(CONFIG_MCA)		+= mca_32.o
+obj-$(CONFIG_X86_MSR)		+= msr.o
+obj-$(CONFIG_X86_CPUID)		+= cpuid.o
+obj-$(CONFIG_MICROCODE)		+= microcode.o
+obj-$(CONFIG_PCI)		+= early-quirks.o
+obj-$(CONFIG_APM)		+= apm_32.o
+obj-$(CONFIG_X86_SMP)		+= smp_$(BITS).o smpboot_$(BITS).o tsc_sync.o
+obj-$(CONFIG_X86_32_SMP)	+= smpcommon_32.o
+obj-$(CONFIG_X86_64_SMP)	+= smp_64.o smpboot_64.o tsc_sync.o
+obj-$(CONFIG_X86_TRAMPOLINE)	+= trampoline_$(BITS).o
+obj-$(CONFIG_X86_MPPARSE)	+= mpparse_$(BITS).o
+obj-$(CONFIG_X86_LOCAL_APIC)	+= apic_$(BITS).o nmi_$(BITS).o
+obj-$(CONFIG_X86_IO_APIC)	+= io_apic_$(BITS).o
+obj-$(CONFIG_X86_REBOOTFIXUPS)	+= reboot_fixups_32.o
+obj-$(CONFIG_KEXEC)		+= machine_kexec_$(BITS).o
+obj-$(CONFIG_KEXEC)		+= relocate_kernel_$(BITS).o crash.o
+obj-$(CONFIG_CRASH_DUMP)	+= crash_dump_$(BITS).o
+obj-$(CONFIG_X86_NUMAQ)		+= numaq_32.o
+obj-$(CONFIG_X86_SUMMIT_NUMA)	+= summit_32.o
+obj-$(CONFIG_X86_VSMP)		+= vsmp_64.o
+obj-$(CONFIG_KPROBES)		+= kprobes.o
+obj-$(CONFIG_MODULES)		+= module_$(BITS).o
+obj-$(CONFIG_ACPI_SRAT) 	+= srat_32.o
+obj-$(CONFIG_EFI) 		+= efi.o efi_$(BITS).o efi_stub_$(BITS).o
+obj-$(CONFIG_DOUBLEFAULT) 	+= doublefault_32.o
+obj-$(CONFIG_VM86)		+= vm86_32.o
+obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
+
+obj-$(CONFIG_HPET_TIMER) 	+= hpet.o
 
-# Workaround to delete .lds files with make clean
-# The problem is that we do not enter Makefile_32 with make clean.
-clean-files := vsyscall*.lds vsyscall*.so
+obj-$(CONFIG_K8_NB)		+= k8.o
+obj-$(CONFIG_MGEODE_LX)		+= geode_32.o mfgpt_32.o
+
+obj-$(CONFIG_VMI)		+= vmi_32.o vmiclock_32.o
+obj-$(CONFIG_PARAVIRT)		+= paravirt.o paravirt_patch_$(BITS).o
+obj-y				+= pcspeaker.o
+
+obj-$(CONFIG_SCx200)		+= scx200_32.o
+
+###
+# 64 bit specific files
+ifeq ($(CONFIG_X86_64),y)
+        obj-y				+= genapic_64.o genapic_flat_64.o
+        obj-$(CONFIG_X86_PM_TIMER)	+= pmtimer_64.o
+        obj-$(CONFIG_AUDIT)		+= audit_64.o
+        obj-$(CONFIG_PM)		+= suspend_64.o
+        obj-$(CONFIG_HIBERNATION)	+= suspend_asm_64.o
+
+        obj-$(CONFIG_GART_IOMMU)	+= pci-gart_64.o aperture_64.o
+        obj-$(CONFIG_CALGARY_IOMMU)	+= pci-calgary_64.o tce_64.o
+        obj-$(CONFIG_SWIOTLB)		+= pci-swiotlb_64.o
+endif
diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
deleted file mode 100644
index 86c6327798b2..000000000000
--- a/arch/x86/kernel/Makefile_32
+++ /dev/null
@@ -1,54 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-
-extra-y := head_32.o init_task.o vmlinux.lds
-CPPFLAGS_vmlinux.lds += -Ui386
-
-obj-y	:= process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
-		time_32.o ioport_32.o ldt.o setup_32.o i8259_32.o sys_i386_32.o \
-		pci-dma_32.o i386_ksyms_32.o bootflag.o e820_32.o\
-		quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o io_delay.o rtc.o
-
-obj-y				+= i387.o
-obj-y				+= ptrace.o
-obj-y				+= ds.o
-obj-y				+= tls.o
-obj-y				+= step.o
-obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
-obj-y				+= cpu/
-obj-y				+= acpi/
-obj-$(CONFIG_X86_BIOS_REBOOT)	+= reboot_32.o
-obj-$(CONFIG_MCA)		+= mca_32.o
-obj-$(CONFIG_X86_MSR)		+= msr.o
-obj-$(CONFIG_X86_CPUID)		+= cpuid.o
-obj-$(CONFIG_MICROCODE)		+= microcode.o
-obj-$(CONFIG_PCI)		+= early-quirks.o
-obj-$(CONFIG_APM)		+= apm_32.o
-obj-$(CONFIG_X86_SMP)		+= smp_32.o smpboot_32.o tsc_sync.o
-obj-$(CONFIG_SMP)		+= smpcommon_32.o
-obj-$(CONFIG_X86_TRAMPOLINE)	+= trampoline_32.o
-obj-$(CONFIG_X86_MPPARSE)	+= mpparse_32.o
-obj-$(CONFIG_X86_LOCAL_APIC)	+= apic_32.o nmi_32.o
-obj-$(CONFIG_X86_IO_APIC)	+= io_apic_32.o
-obj-$(CONFIG_X86_REBOOTFIXUPS)	+= reboot_fixups_32.o
-obj-$(CONFIG_KEXEC)		+= machine_kexec_32.o relocate_kernel_32.o crash.o
-obj-$(CONFIG_CRASH_DUMP)	+= crash_dump_32.o
-obj-$(CONFIG_X86_NUMAQ)		+= numaq_32.o
-obj-$(CONFIG_X86_SUMMIT_NUMA)	+= summit_32.o
-obj-$(CONFIG_KPROBES)		+= kprobes.o
-obj-$(CONFIG_MODULES)		+= module_32.o
-obj-$(CONFIG_ACPI_SRAT) 	+= srat_32.o
-obj-$(CONFIG_EFI) 		+= efi.o efi_32.o efi_stub_32.o
-obj-$(CONFIG_DOUBLEFAULT) 	+= doublefault_32.o
-obj-$(CONFIG_VM86)		+= vm86_32.o
-obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
-obj-$(CONFIG_HPET_TIMER) 	+= hpet.o
-obj-$(CONFIG_K8_NB)		+= k8.o
-obj-$(CONFIG_MGEODE_LX)		+= geode_32.o mfgpt_32.o
-
-obj-$(CONFIG_VMI)		+= vmi_32.o vmiclock_32.o
-obj-$(CONFIG_PARAVIRT)		+= paravirt.o paravirt_patch_32.o
-obj-y				+= pcspeaker.o
-
-obj-$(CONFIG_SCx200)		+= scx200_32.o
diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
deleted file mode 100644
index b8f9d13eb5e3..000000000000
--- a/arch/x86/kernel/Makefile_64
+++ /dev/null
@@ -1,52 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-
-extra-y 	:= head_64.o head64.o init_task.o vmlinux.lds
-CPPFLAGS_vmlinux.lds += -Ux86_64
-
-obj-y	:= process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
-		time_64.o ioport_64.o ldt.o setup_64.o i8259_64.o sys_x86_64.o \
-		x8664_ksyms_64.o syscall_64.o vsyscall_64.o \
-		setup64.o bootflag.o e820_64.o reboot_64.o quirks.o i8237.o \
-		pci-dma_64.o pci-nommu_64.o alternative.o hpet.o tsc_64.o bugs_64.o \
-		i8253.o io_delay.o rtc.o
-
-obj-y				+= ptrace.o
-obj-y				+= ds.o
-obj-y				+= step.o
-
-obj-y				+= i387.o
-obj-$(CONFIG_IA32_EMULATION)	+= tls.o
-obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
-obj-y				+= cpu/
-obj-y				+= acpi/
-obj-$(CONFIG_X86_MSR)		+= msr.o
-obj-$(CONFIG_MICROCODE)		+= microcode.o
-obj-$(CONFIG_X86_CPUID)		+= cpuid.o
-obj-$(CONFIG_SMP)		+= smp_64.o smpboot_64.o trampoline_64.o tsc_sync.o
-obj-y				+= apic_64.o  nmi_64.o
-obj-y				+= io_apic_64.o mpparse_64.o genapic_64.o genapic_flat_64.o
-obj-$(CONFIG_KEXEC)		+= machine_kexec_64.o relocate_kernel_64.o crash.o
-obj-$(CONFIG_CRASH_DUMP)	+= crash_dump_64.o
-obj-$(CONFIG_PM)		+= suspend_64.o
-obj-$(CONFIG_HIBERNATION)	+= suspend_asm_64.o
-obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
-obj-$(CONFIG_GART_IOMMU)	+= pci-gart_64.o aperture_64.o
-obj-$(CONFIG_CALGARY_IOMMU)	+= pci-calgary_64.o tce_64.o
-obj-$(CONFIG_SWIOTLB)		+= pci-swiotlb_64.o
-obj-$(CONFIG_KPROBES)		+= kprobes.o
-obj-$(CONFIG_X86_PM_TIMER)	+= pmtimer_64.o
-obj-$(CONFIG_X86_VSMP)		+= vsmp_64.o
-obj-$(CONFIG_K8_NB)		+= k8.o
-obj-$(CONFIG_AUDIT)		+= audit_64.o
-obj-$(CONFIG_EFI)		+= efi.o efi_64.o efi_stub_64.o
-obj-$(CONFIG_PARAVIRT)		+= paravirt.o paravirt_patch_64.o
-
-obj-$(CONFIG_MODULES)		+= module_64.o
-obj-$(CONFIG_PCI)		+= early-quirks.o
-
-obj-y				+= topology.o
-obj-y				+= pcspeaker.o
-
-CFLAGS_vsyscall_64.o		:= $(PROFILING) -g0
-- 
cgit v1.2.3-59-g8ed1b


From db569afa4e69ceaf89b3723a8f9cd2846ed09c76 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:32:30 +0100
Subject: x86: unify arch/x86/boot/compressed/Makefile(s)

Trivial unification of the two Makefiles.
Tested doing a defconfig build for both 32 and 64 bit and
no build changes occured.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/Makefile    | 62 ++++++++++++++++++++++++++++++++++--
 arch/x86/boot/compressed/Makefile_32 | 50 -----------------------------
 arch/x86/boot/compressed/Makefile_64 | 30 -----------------
 3 files changed, 60 insertions(+), 82 deletions(-)
 delete mode 100644 arch/x86/boot/compressed/Makefile_32
 delete mode 100644 arch/x86/boot/compressed/Makefile_64

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 52c1db854520..d6ae347d11f1 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -1,5 +1,63 @@
+#
+# linux/arch/x86/boot/compressed/Makefile
+#
+# create a compressed vmlinux image from the original vmlinux
+#
+
+targets := vmlinux vmlinux.bin vmlinux.bin.gz head_$(BITS).o misc_$(BITS).o piggy.o
+
+KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
+KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
+cflags-$(CONFIG_X86_64) := -mcmodel=small
+KBUILD_CFLAGS += $(cflags-y)
+KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
+KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
+
+KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
+
+LDFLAGS := -m elf_$(UTS_MACHINE)
+LDFLAGS_vmlinux := -T
+
+$(obj)/vmlinux: $(src)/vmlinux_$(BITS).lds $(obj)/head_$(BITS).o $(obj)/misc_$(BITS).o $(obj)/piggy.o FORCE
+	$(call if_changed,ld)
+	@:
+
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+
 ifeq ($(CONFIG_X86_32),y)
-include ${srctree}/arch/x86/boot/compressed/Makefile_32
+targets += vmlinux.bin.all vmlinux.relocs
+hostprogs-y := relocs
+
+quiet_cmd_relocs = RELOCS  $@
+      cmd_relocs = $(obj)/relocs $< > $@;$(obj)/relocs --abs-relocs $<
+$(obj)/vmlinux.relocs: vmlinux $(obj)/relocs FORCE
+	$(call if_changed,relocs)
+
+vmlinux.bin.all-y := $(obj)/vmlinux.bin
+vmlinux.bin.all-$(CONFIG_RELOCATABLE) += $(obj)/vmlinux.relocs
+quiet_cmd_relocbin = BUILD   $@
+      cmd_relocbin = cat $(filter-out FORCE,$^) > $@
+$(obj)/vmlinux.bin.all: $(vmlinux.bin.all-y) FORCE
+	$(call if_changed,relocbin)
+
+ifdef CONFIG_RELOCATABLE
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin.all FORCE
+	$(call if_changed,gzip)
 else
-include ${srctree}/arch/x86/boot/compressed/Makefile_64
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
 endif
+LDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T
+
+else
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
+LDFLAGS_piggy.o := -r --format binary --oformat elf64-x86-64 -T
+endif
+
+
+$(obj)/piggy.o: $(obj)/vmlinux_$(BITS).scr $(obj)/vmlinux.bin.gz FORCE
+	$(call if_changed,ld)
diff --git a/arch/x86/boot/compressed/Makefile_32 b/arch/x86/boot/compressed/Makefile_32
deleted file mode 100644
index e43ff7c56e6e..000000000000
--- a/arch/x86/boot/compressed/Makefile_32
+++ /dev/null
@@ -1,50 +0,0 @@
-#
-# linux/arch/x86/boot/compressed/Makefile
-#
-# create a compressed vmlinux image from the original vmlinux
-#
-
-targets		:= vmlinux vmlinux.bin vmlinux.bin.gz head_32.o misc_32.o piggy.o \
-			vmlinux.bin.all vmlinux.relocs
-EXTRA_AFLAGS	:= -traditional
-
-LDFLAGS_vmlinux := -T
-hostprogs-y	:= relocs
-
-KBUILD_CFLAGS  := -m32 -D__KERNEL__ $(LINUX_INCLUDE) -O2 \
-	   -fno-strict-aliasing -fPIC \
-	   $(call cc-option,-ffreestanding) \
-	   $(call cc-option,-fno-stack-protector)
-LDFLAGS := -m elf_i386
-
-$(obj)/vmlinux: $(src)/vmlinux_32.lds $(obj)/head_32.o $(obj)/misc_32.o $(obj)/piggy.o FORCE
-	$(call if_changed,ld)
-	@:
-
-$(obj)/vmlinux.bin: vmlinux FORCE
-	$(call if_changed,objcopy)
-
-quiet_cmd_relocs = RELOCS  $@
-      cmd_relocs = $(obj)/relocs $< > $@;$(obj)/relocs --abs-relocs $<
-$(obj)/vmlinux.relocs: vmlinux $(obj)/relocs FORCE
-	$(call if_changed,relocs)
-
-vmlinux.bin.all-y := $(obj)/vmlinux.bin
-vmlinux.bin.all-$(CONFIG_RELOCATABLE) += $(obj)/vmlinux.relocs
-quiet_cmd_relocbin = BUILD   $@
-      cmd_relocbin = cat $(filter-out FORCE,$^) > $@
-$(obj)/vmlinux.bin.all: $(vmlinux.bin.all-y) FORCE
-	$(call if_changed,relocbin)
-
-ifdef CONFIG_RELOCATABLE
-$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin.all FORCE
-	$(call if_changed,gzip)
-else
-$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
-	$(call if_changed,gzip)
-endif
-
-LDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T
-
-$(obj)/piggy.o: $(src)/vmlinux_32.scr $(obj)/vmlinux.bin.gz FORCE
-	$(call if_changed,ld)
diff --git a/arch/x86/boot/compressed/Makefile_64 b/arch/x86/boot/compressed/Makefile_64
deleted file mode 100644
index 7801e8dd90b2..000000000000
--- a/arch/x86/boot/compressed/Makefile_64
+++ /dev/null
@@ -1,30 +0,0 @@
-#
-# linux/arch/x86/boot/compressed/Makefile
-#
-# create a compressed vmlinux image from the original vmlinux
-#
-
-targets		:= vmlinux vmlinux.bin vmlinux.bin.gz head_64.o misc_64.o piggy.o
-
-KBUILD_CFLAGS := -m64 -D__KERNEL__ $(LINUXINCLUDE) -O2  \
-	  -fno-strict-aliasing -fPIC -mcmodel=small \
-	   $(call cc-option, -ffreestanding) \
-	   $(call cc-option, -fno-stack-protector)
-KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
-LDFLAGS := -m elf_x86_64
-
-LDFLAGS_vmlinux := -T
-$(obj)/vmlinux: $(src)/vmlinux_64.lds $(obj)/head_64.o $(obj)/misc_64.o $(obj)/piggy.o FORCE
-	$(call if_changed,ld)
-	@:
-
-$(obj)/vmlinux.bin: vmlinux FORCE
-	$(call if_changed,objcopy)
-
-$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
-	$(call if_changed,gzip)
-
-LDFLAGS_piggy.o := -r --format binary --oformat elf64-x86-64 -T
-
-$(obj)/piggy.o: $(obj)/vmlinux_64.scr $(obj)/vmlinux.bin.gz FORCE
-	$(call if_changed,ld)
-- 
cgit v1.2.3-59-g8ed1b


From 583d0e90ea52f02ae4d103359ee59e8218799e27 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:32:31 +0100
Subject: x86: unify arch/x86/lib/Makefile(s)

Trivial unification of Makefiles for the
x86 specific library part.
Linking order is slightly modified but should be harmless.

Tested doing a defconfig build before and after and saw
no build changes.

It adds almost as many lines as it deletes - bacause
I broke a few lines up fo readability in the Makefile.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/lib/Makefile    | 26 ++++++++++++++++++++++++--
 arch/x86/lib/Makefile_32 | 11 -----------
 arch/x86/lib/Makefile_64 | 13 -------------
 3 files changed, 24 insertions(+), 26 deletions(-)
 delete mode 100644 arch/x86/lib/Makefile_32
 delete mode 100644 arch/x86/lib/Makefile_64

(limited to 'arch')

diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 329da276c6f1..4876182daf8a 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -1,5 +1,27 @@
+#
+# Makefile for x86 specific library files.
+#
+
+obj-$(CONFIG_SMP) := msr-on-cpu.o
+
+lib-y := delay_$(BITS).o
+lib-y += usercopy_$(BITS).o getuser_$(BITS).o putuser_$(BITS).o
+lib-y += memcpy_$(BITS).o
+
 ifeq ($(CONFIG_X86_32),y)
-include ${srctree}/arch/x86/lib/Makefile_32
+        lib-y += checksum_32.o
+        lib-y += strstr_32.o
+        lib-y += bitops_32.o semaphore_32.o string_32.o
+
+        lib-$(CONFIG_X86_USE_3DNOW) += mmx_32.o
 else
-include ${srctree}/arch/x86/lib/Makefile_64
+        obj-y += io_64.o iomap_copy_64.o
+
+        CFLAGS_csum-partial_64.o := -funroll-loops
+
+        lib-y += csum-partial_64.o csum-copy_64.o csum-wrappers_64.o
+        lib-y += thunk_64.o clear_page_64.o copy_page_64.o
+        lib-y += bitstr_64.o bitops_64.o
+        lib-y += memmove_64.o memset_64.o
+        lib-y += copy_user_64.o rwlock_64.o copy_user_nocache_64.o
 endif
diff --git a/arch/x86/lib/Makefile_32 b/arch/x86/lib/Makefile_32
deleted file mode 100644
index 98d1f1e2e2ef..000000000000
--- a/arch/x86/lib/Makefile_32
+++ /dev/null
@@ -1,11 +0,0 @@
-#
-# Makefile for i386-specific library files..
-#
-
-
-lib-y = checksum_32.o delay_32.o usercopy_32.o getuser_32.o putuser_32.o memcpy_32.o strstr_32.o \
-	bitops_32.o semaphore_32.o string_32.o
-
-lib-$(CONFIG_X86_USE_3DNOW) += mmx_32.o
-
-obj-$(CONFIG_SMP)	+= msr-on-cpu.o
diff --git a/arch/x86/lib/Makefile_64 b/arch/x86/lib/Makefile_64
deleted file mode 100644
index bbabad3c9335..000000000000
--- a/arch/x86/lib/Makefile_64
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# Makefile for x86_64-specific library files.
-#
-
-CFLAGS_csum-partial_64.o := -funroll-loops
-
-obj-y := io_64.o iomap_copy_64.o
-obj-$(CONFIG_SMP)	+= msr-on-cpu.o
-
-lib-y := csum-partial_64.o csum-copy_64.o csum-wrappers_64.o delay_64.o \
-	usercopy_64.o getuser_64.o putuser_64.o  \
-	thunk_64.o clear_page_64.o copy_page_64.o bitstr_64.o bitops_64.o
-lib-y += memcpy_64.o memmove_64.o memset_64.o copy_user_64.o rwlock_64.o copy_user_nocache_64.o
-- 
cgit v1.2.3-59-g8ed1b


From fb0328e2e6407d6f48a608aefa62b2be91989e7e Mon Sep 17 00:00:00 2001
From: Nick Piggin <npiggin@suse.de>
Date: Wed, 30 Jan 2008 13:32:31 +0100
Subject: x86: reduce CONFIG_X86_PPRO_FENCE bloat

CONFIG_X86_PPRO_FENCE bloats text:

i386 allmodconf: size mm/built-in.o
           text    data     bss     dec     hex         text ratio
vanilla: 163082   20372   40120  223574   36956          100.00%
bugfix : 163509   20372   40120  224001   36b01            0.26%
noppro : 162191   20372   40120  222683   365db         -  0.55%
both   : 162267   20372   40120  222759   36627         -  0.50% (+0.05% vs noppro)

So with the ppro memory ordering bug out of the way, the PG_uptodate fix
only adds 76 bytes of text.

allow this config to be specified by distros.

[ mingo@elte.hu: x86.git merge ]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.cpu | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 018d68e3184e..e09a6b73a1aa 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -321,8 +321,17 @@ config X86_XADD
 	depends on X86_32 && !M386
 
 config X86_PPRO_FENCE
-	def_bool y
+	bool "PentiumPro memory ordering errata workaround"
 	depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 || MGEODEGX1
+	help
+	  Old PentiumPro multiprocessor systems had errata that could cause memory
+	  operations to violate the x86 ordering standard in rare cases. Enabling this
+	  option will attempt to work around some (but not all) occurances of
+	  this problem, at the cost of much heavier spinlock and memory barrier
+	  operations.
+
+	  If unsure, say n here. Even distro kernels should think twice before enabling
+	  this: there are few systems, and an unlikely bug.
 
 config X86_F00F_BUG
 	def_bool y
-- 
cgit v1.2.3-59-g8ed1b


From ff3cf856120743c7386e8f6ab9f08e068886ce5c Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:32:31 +0100
Subject: x86: hlt on early crash

H. Peter Anvin <hpa@zytor.com> wrote:

> It probably should actually HLT, to avoid sucking power, and stressing
> the thermal system.  We're dead at this point, and the early 486's
> which had problems with HLT will lock up - we don't care.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/misc_32.c | 3 ++-
 arch/x86/boot/compressed/misc_64.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/misc_32.c b/arch/x86/boot/compressed/misc_32.c
index 288e16283ef9..9103652058c4 100644
--- a/arch/x86/boot/compressed/misc_32.c
+++ b/arch/x86/boot/compressed/misc_32.c
@@ -339,7 +339,8 @@ static void error(char *x)
 	putstr(x);
 	putstr("\n\n -- System halted");
 
-	while(1);	/* Halt */
+	while (1)
+		asm("hlt");
 }
 
 asmlinkage void decompress_kernel(void *rmode, unsigned long end,
diff --git a/arch/x86/boot/compressed/misc_64.c b/arch/x86/boot/compressed/misc_64.c
index 7d8338e21b00..8494f0dcff21 100644
--- a/arch/x86/boot/compressed/misc_64.c
+++ b/arch/x86/boot/compressed/misc_64.c
@@ -338,7 +338,8 @@ static void error(char *x)
 	putstr(x);
 	putstr("\n\n -- System halted");
 
-	while(1);	/* Halt */
+	while (1)
+		asm("hlt");
 }
 
 asmlinkage void decompress_kernel(void *rmode, unsigned long heap,
-- 
cgit v1.2.3-59-g8ed1b


From 8eed92605334f1cd8fd025631f6a61522746b124 Mon Sep 17 00:00:00 2001
From: Cyrill Gorcunov <gorcunov@gmail.com>
Date: Wed, 30 Jan 2008 13:32:31 +0100
Subject: x86: coding style cleanup for kernel/bootflag.c

This patch eliminates checkpatch.pl complaints on bootflag.c

No code changed:

   text    data     bss     dec     hex filename
    321       8       0     329     149 bootflag.o.before
    321       8       0     329     149 bootflag.o.after

   md5:
      9c1b474bcf25ddc1724a29c19880043f  bootflag.o.before.asm
      9c1b474bcf25ddc1724a29c19880043f  bootflag.o.after.asm

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/bootflag.c | 50 +++++++++++++++++++++++++---------------------
 1 file changed, 27 insertions(+), 23 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/bootflag.c b/arch/x86/kernel/bootflag.c
index 0b9860530a6b..30f25a75fe28 100644
--- a/arch/x86/kernel/bootflag.c
+++ b/arch/x86/kernel/bootflag.c
@@ -1,8 +1,6 @@
 /*
  *	Implement 'Simple Boot Flag Specification 2.0'
  */
-
-
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -14,40 +12,38 @@
 
 #include <linux/mc146818rtc.h>
 
-
 #define SBF_RESERVED (0x78)
 #define SBF_PNPOS    (1<<0)
 #define SBF_BOOTING  (1<<1)
 #define SBF_DIAG     (1<<2)
 #define SBF_PARITY   (1<<7)
 
-
 int sbf_port __initdata = -1;	/* set via acpi_boot_init() */
 
-
 static int __init parity(u8 v)
 {
 	int x = 0;
 	int i;
-	
-	for(i=0;i<8;i++)
-	{
-		x^=(v&1);
-		v>>=1;
+
+	for (i = 0; i < 8; i++) {
+		x ^= (v & 1);
+		v >>= 1;
 	}
+
 	return x;
 }
 
 static void __init sbf_write(u8 v)
 {
 	unsigned long flags;
-	if(sbf_port != -1)
-	{
+
+	if (sbf_port != -1) {
 		v &= ~SBF_PARITY;
-		if(!parity(v))
-			v|=SBF_PARITY;
+		if (!parity(v))
+			v |= SBF_PARITY;
 
-		printk(KERN_INFO "Simple Boot Flag at 0x%x set to 0x%x\n", sbf_port, v);
+		printk(KERN_INFO "Simple Boot Flag at 0x%x set to 0x%x\n",
+			sbf_port, v);
 
 		spin_lock_irqsave(&rtc_lock, flags);
 		CMOS_WRITE(v, sbf_port);
@@ -57,33 +53,41 @@ static void __init sbf_write(u8 v)
 
 static u8 __init sbf_read(void)
 {
-	u8 v;
 	unsigned long flags;
-	if(sbf_port == -1)
+	u8 v;
+
+	if (sbf_port == -1)
 		return 0;
+
 	spin_lock_irqsave(&rtc_lock, flags);
 	v = CMOS_READ(sbf_port);
 	spin_unlock_irqrestore(&rtc_lock, flags);
+
 	return v;
 }
 
 static int __init sbf_value_valid(u8 v)
 {
-	if(v&SBF_RESERVED)		/* Reserved bits */
+	if (v & SBF_RESERVED)		/* Reserved bits */
 		return 0;
-	if(!parity(v))
+	if (!parity(v))
 		return 0;
+
 	return 1;
 }
 
 static int __init sbf_init(void)
 {
 	u8 v;
-	if(sbf_port == -1)
+
+	if (sbf_port == -1)
 		return 0;
+
 	v = sbf_read();
-	if(!sbf_value_valid(v))
-		printk(KERN_WARNING "Simple Boot Flag value 0x%x read from CMOS RAM was invalid\n",v);
+	if (!sbf_value_valid(v)) {
+		printk(KERN_WARNING "Simple Boot Flag value 0x%x read from "
+			"CMOS RAM was invalid\n", v);
+	}
 
 	v &= ~SBF_RESERVED;
 	v &= ~SBF_BOOTING;
@@ -92,7 +96,7 @@ static int __init sbf_init(void)
 	v |= SBF_PNPOS;
 #endif
 	sbf_write(v);
+
 	return 0;
 }
-
 module_init(sbf_init);
-- 
cgit v1.2.3-59-g8ed1b


From 037f52aca499d9d4e18d03824ce1cd481330c778 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:32:32 +0100
Subject: x86: gitignore arch/x86/vdso files

Teach git to ignore generated files in
arch/x86/vdso/*

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roland McGrath <roland@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/vdso/.gitignore        | 4 ++++
 arch/x86/vdso/vdso32/.gitignore | 1 +
 2 files changed, 5 insertions(+)
 create mode 100644 arch/x86/vdso/vdso32/.gitignore

(limited to 'arch')

diff --git a/arch/x86/vdso/.gitignore b/arch/x86/vdso/.gitignore
index f8b69d84238e..b9030e533418 100644
--- a/arch/x86/vdso/.gitignore
+++ b/arch/x86/vdso/.gitignore
@@ -1 +1,5 @@
 vdso.lds
+vdso-syms.lds
+vdso32-syms.lds
+vdso32-syscall-syms.lds
+vdso32-sysenter-syms.lds
diff --git a/arch/x86/vdso/vdso32/.gitignore b/arch/x86/vdso/vdso32/.gitignore
new file mode 100644
index 000000000000..e45fba9d0ced
--- /dev/null
+++ b/arch/x86/vdso/vdso32/.gitignore
@@ -0,0 +1 @@
+vdso32.lds
-- 
cgit v1.2.3-59-g8ed1b


From 1c858087cd49d36b2f25b4fc2a47e39ac6cf09df Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@kernel.org>
Date: Wed, 30 Jan 2008 13:32:32 +0100
Subject: x86: default to PCI=y

PCI is one of the few hardware stuff where defaulting to y makes sense.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 3d2c8dfba915..5271665a22e0 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1339,7 +1339,7 @@ menu "Bus options (PCI etc.)"
 config PCI
 	bool "PCI support" if !X86_VISWS
 	depends on !X86_VOYAGER
-	default y if X86_VISWS
+	default y
 	select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC)
 	help
 	  Find out whether you have a PCI motherboard. PCI is the name of a
-- 
cgit v1.2.3-59-g8ed1b


From 3f4380a1e0ea44bc1062ca55e8e479ddcda369fc Mon Sep 17 00:00:00 2001
From: Cyrill Gorcunov <gorcunov@gmail.com>
Date: Wed, 30 Jan 2008 13:32:32 +0100
Subject: x86: get rid of checkpatch.pl complains on apm_32.c

This patch eliminates most of code-style errors
discovered by checkpatch.pl on arch/x86/kernel/apm_32.c

no code changed:

      text    data     bss     dec     hex filename
     12142    1837      84   14063    36ef apm_32.o.before
     12142    1837      84   14063    36ef apm_32.o.after

   md5:
       2676b881ad55e387da4a995e8b9ee372  apm_32.o.before.asm
       2676b881ad55e387da4a995e8b9ee372  apm_32.o.after.asm

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apm_32.c | 366 +++++++++++++++++++++++++----------------------
 1 file changed, 196 insertions(+), 170 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 2467df7eca0b..955dd43b1676 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -323,7 +323,7 @@ extern int (*console_blank_hook)(int);
 /*
  * Ignore suspend events for this amount of time after a resume
  */
-#define DEFAULT_BOUNCE_INTERVAL		(3 * HZ)
+#define DEFAULT_BOUNCE_INTERVAL	(3 * HZ)
 
 /*
  * Maximum number of events stored
@@ -335,7 +335,7 @@ extern int (*console_blank_hook)(int);
  */
 struct apm_user {
 	int		magic;
-	struct apm_user *	next;
+	struct apm_user *next;
 	unsigned int	suser: 1;
 	unsigned int	writer: 1;
 	unsigned int	reader: 1;
@@ -371,44 +371,44 @@ struct apm_user {
 static struct {
 	unsigned long	offset;
 	unsigned short	segment;
-}				apm_bios_entry;
-static int			clock_slowed;
-static int			idle_threshold __read_mostly = DEFAULT_IDLE_THRESHOLD;
-static int			idle_period __read_mostly = DEFAULT_IDLE_PERIOD;
-static int			set_pm_idle;
-static int			suspends_pending;
-static int			standbys_pending;
-static int			ignore_sys_suspend;
-static int			ignore_normal_resume;
-static int			bounce_interval __read_mostly = DEFAULT_BOUNCE_INTERVAL;
-
-static int			debug __read_mostly;
-static int			smp __read_mostly;
-static int			apm_disabled = -1;
+} apm_bios_entry;
+static int clock_slowed;
+static int idle_threshold __read_mostly = DEFAULT_IDLE_THRESHOLD;
+static int idle_period __read_mostly = DEFAULT_IDLE_PERIOD;
+static int set_pm_idle;
+static int suspends_pending;
+static int standbys_pending;
+static int ignore_sys_suspend;
+static int ignore_normal_resume;
+static int bounce_interval __read_mostly = DEFAULT_BOUNCE_INTERVAL;
+
+static int debug __read_mostly;
+static int smp __read_mostly;
+static int apm_disabled = -1;
 #ifdef CONFIG_SMP
-static int			power_off;
+static int power_off;
 #else
-static int			power_off = 1;
+static int power_off = 1;
 #endif
 #ifdef CONFIG_APM_REAL_MODE_POWER_OFF
-static int			realmode_power_off = 1;
+static int realmode_power_off = 1;
 #else
-static int			realmode_power_off;
+static int realmode_power_off;
 #endif
 #ifdef CONFIG_APM_ALLOW_INTS
-static int			allow_ints = 1;
+static int allow_ints = 1;
 #else
-static int			allow_ints;
+static int allow_ints;
 #endif
-static int			broken_psr;
+static int broken_psr;
 
 static DECLARE_WAIT_QUEUE_HEAD(apm_waitqueue);
 static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue);
-static struct apm_user *	user_list;
+static struct apm_user *user_list;
 static DEFINE_SPINLOCK(user_list_lock);
 static const struct desc_struct	bad_bios_desc = { { { 0, 0x00409200 } } };
 
-static const char		driver_version[] = "1.16ac";	/* no spaces */
+static const char driver_version[] = "1.16ac";	/* no spaces */
 
 static struct task_struct *kapmd_task;
 
@@ -416,7 +416,7 @@ static struct task_struct *kapmd_task;
  *	APM event names taken from the APM 1.2 specification. These are
  *	the message codes that the BIOS uses to tell us about events
  */
-static const char *	const apm_event_name[] = {
+static const char * const apm_event_name[] = {
 	"system standby",
 	"system suspend",
 	"normal resume",
@@ -434,14 +434,14 @@ static const char *	const apm_event_name[] = {
 
 typedef struct lookup_t {
 	int	key;
-	char *	msg;
+	char 	*msg;
 } lookup_t;
 
 /*
  *	The BIOS returns a set of standard error codes in AX when the
  *	carry flag is set.
  */
- 
+
 static const lookup_t error_table[] = {
 /* N/A	{ APM_SUCCESS,		"Operation succeeded" }, */
 	{ APM_DISABLED,		"Power management disabled" },
@@ -471,24 +471,25 @@ static const lookup_t error_table[] = {
  *	Write a meaningful log entry to the kernel log in the event of
  *	an APM error.
  */
- 
+
 static void apm_error(char *str, int err)
 {
-	int	i;
+	int i;
 
 	for (i = 0; i < ERROR_COUNT; i++)
-		if (error_table[i].key == err) break;
+		if (error_table[i].key == err)
+			break;
 	if (i < ERROR_COUNT)
 		printk(KERN_NOTICE "apm: %s: %s\n", str, error_table[i].msg);
 	else
 		printk(KERN_NOTICE "apm: %s: unknown error code %#2.2x\n",
-			str, err);
+		       str, err);
 }
 
 /*
  * Lock APM functionality to physical CPU 0
  */
- 
+
 #ifdef CONFIG_SMP
 
 static cpumask_t apm_save_cpus(void)
@@ -510,7 +511,7 @@ static inline void apm_restore_cpus(cpumask_t mask)
 /*
  *	No CPU lockdown needed on a uniprocessor
  */
- 
+
 #define apm_save_cpus()		(current->cpus_allowed)
 #define apm_restore_cpus(x)	(void)(x)
 
@@ -589,7 +590,7 @@ static inline void apm_irq_restore(unsigned long flags)
  *	code is returned in AH (bits 8-15 of eax) and this function
  *	returns non-zero.
  */
- 
+
 static u8 apm_bios_call(u32 func, u32 ebx_in, u32 ecx_in,
 	u32 *eax, u32 *ebx, u32 *ecx, u32 *edx, u32 *esi)
 {
@@ -601,7 +602,7 @@ static u8 apm_bios_call(u32 func, u32 ebx_in, u32 ecx_in,
 	struct desc_struct	*gdt;
 
 	cpus = apm_save_cpus();
-	
+
 	cpu = get_cpu();
 	gdt = get_cpu_gdt_table(cpu);
 	save_desc_40 = gdt[0x40 / 8];
@@ -615,7 +616,7 @@ static u8 apm_bios_call(u32 func, u32 ebx_in, u32 ecx_in,
 	gdt[0x40 / 8] = save_desc_40;
 	put_cpu();
 	apm_restore_cpus(cpus);
-	
+
 	return *eax & 0xff;
 }
 
@@ -644,7 +645,7 @@ static u8 apm_bios_call_simple(u32 func, u32 ebx_in, u32 ecx_in, u32 *eax)
 	struct desc_struct	*gdt;
 
 	cpus = apm_save_cpus();
-	
+
 	cpu = get_cpu();
 	gdt = get_cpu_gdt_table(cpu);
 	save_desc_40 = gdt[0x40 / 8];
@@ -679,7 +680,7 @@ static u8 apm_bios_call_simple(u32 func, u32 ebx_in, u32 ecx_in, u32 *eax)
 
 static int apm_driver_version(u_short *val)
 {
-	u32	eax;
+	u32 eax;
 
 	if (apm_bios_call_simple(APM_FUNC_VERSION, 0, *val, &eax))
 		return (eax >> 8) & 0xff;
@@ -703,16 +704,16 @@ static int apm_driver_version(u_short *val)
  *	that APM 1.2 is in use. If no messges are pending the value 0x80
  *	is returned (No power management events pending).
  */
- 
+
 static int apm_get_event(apm_event_t *event, apm_eventinfo_t *info)
 {
-	u32	eax;
-	u32	ebx;
-	u32	ecx;
-	u32	dummy;
+	u32 eax;
+	u32 ebx;
+	u32 ecx;
+	u32 dummy;
 
 	if (apm_bios_call(APM_FUNC_GET_EVENT, 0, 0, &eax, &ebx, &ecx,
-			&dummy, &dummy))
+			  &dummy, &dummy))
 		return (eax >> 8) & 0xff;
 	*event = ebx;
 	if (apm_info.connection_version < 0x0102)
@@ -735,10 +736,10 @@ static int apm_get_event(apm_event_t *event, apm_eventinfo_t *info)
  *	The state holds the state to transition to, which may in fact
  *	be an acceptance of a BIOS requested state change.
  */
- 
+
 static int set_power_state(u_short what, u_short state)
 {
-	u32	eax;
+	u32 eax;
 
 	if (apm_bios_call_simple(APM_FUNC_SET_STATE, what, state, &eax))
 		return (eax >> 8) & 0xff;
@@ -751,7 +752,7 @@ static int set_power_state(u_short what, u_short state)
  *
  *	Transition the entire system into a new APM power state.
  */
- 
+
 static int set_system_power_state(u_short state)
 {
 	return set_power_state(APM_DEVICE_ALL, state);
@@ -765,13 +766,13 @@ static int set_system_power_state(u_short state)
  *	to handle the idle request. On a success the function returns 1
  *	if the BIOS did clock slowing or 0 otherwise.
  */
- 
+
 static int apm_do_idle(void)
 {
-	u32	eax;
-	u8	ret = 0;
-	int	idled = 0;
-	int	polling;
+	u32 eax;
+	u8 ret = 0;
+	int idled = 0;
+	int polling;
 
 	polling = !!(current_thread_info()->status & TS_POLLING);
 	if (polling) {
@@ -798,10 +799,9 @@ static int apm_do_idle(void)
 		/* This always fails on some SMP boards running UP kernels.
 		 * Only report the failure the first 5 times.
 		 */
-		if (++t < 5)
-		{
+		if (++t < 5) {
 			printk(KERN_DEBUG "apm_do_idle failed (%d)\n",
-					(eax >> 8) & 0xff);
+			       (eax >> 8) & 0xff);
 			t = jiffies;
 		}
 		return -1;
@@ -813,15 +813,15 @@ static int apm_do_idle(void)
 /**
  *	apm_do_busy	-	inform the BIOS the CPU is busy
  *
- *	Request that the BIOS brings the CPU back to full performance. 
+ *	Request that the BIOS brings the CPU back to full performance.
  */
- 
+
 static void apm_do_busy(void)
 {
-	u32	dummy;
+	u32 dummy;
 
 	if (clock_slowed || ALWAYS_CALL_BUSY) {
-		(void) apm_bios_call_simple(APM_FUNC_BUSY, 0, 0, &dummy);
+		(void)apm_bios_call_simple(APM_FUNC_BUSY, 0, 0, &dummy);
 		clock_slowed = 0;
 	}
 }
@@ -832,15 +832,15 @@ static void apm_do_busy(void)
  * power management - we probably want
  * to conserve power.
  */
-#define IDLE_CALC_LIMIT   (HZ * 100)
-#define IDLE_LEAKY_MAX    16
+#define IDLE_CALC_LIMIT	(HZ * 100)
+#define IDLE_LEAKY_MAX	16
 
 static void (*original_pm_idle)(void) __read_mostly;
 
 /**
  * apm_cpu_idle		-	cpu idling for APM capable Linux
  *
- * This is the idling function the kernel executes when APM is available. It 
+ * This is the idling function the kernel executes when APM is available. It
  * tries to do BIOS powermanagement based on the average system idle time.
  * Furthermore it calls the system default idle routine.
  */
@@ -881,7 +881,8 @@ recalc:
 
 			t = jiffies;
 			switch (apm_do_idle()) {
-			case 0: apm_idle_done = 1;
+			case 0:
+				apm_idle_done = 1;
 				if (t != jiffies) {
 					if (bucket) {
 						bucket = IDLE_LEAKY_MAX;
@@ -892,7 +893,8 @@ recalc:
 					continue;
 				}
 				break;
-			case 1: apm_idle_done = 1;
+			case 1:
+				apm_idle_done = 1;
 				break;
 			default: /* BIOS refused */
 				break;
@@ -920,10 +922,10 @@ recalc:
  *	the SMP call on CPU0 as some systems will only honour this call
  *	on their first cpu.
  */
- 
+
 static void apm_power_off(void)
 {
-	unsigned char	po_bios_call[] = {
+	unsigned char po_bios_call[] = {
 		0xb8, 0x00, 0x10,	/* movw  $0x1000,ax  */
 		0x8e, 0xd0,		/* movw  ax,ss       */
 		0xbc, 0x00, 0xf0,	/* movw  $0xf000,sp  */
@@ -934,13 +936,12 @@ static void apm_power_off(void)
 	};
 
 	/* Some bioses don't like being called from CPU != 0 */
-	if (apm_info.realmode_power_off)
-	{
+	if (apm_info.realmode_power_off) {
 		(void)apm_save_cpus();
 		machine_real_restart(po_bios_call, sizeof(po_bios_call));
+	} else {
+		(void)set_system_power_state(APM_STATE_OFF);
 	}
-	else
-		(void) set_system_power_state(APM_STATE_OFF);
 }
 
 #ifdef CONFIG_APM_DO_ENABLE
@@ -949,17 +950,17 @@ static void apm_power_off(void)
  *	apm_enable_power_management - enable BIOS APM power management
  *	@enable: enable yes/no
  *
- *	Enable or disable the APM BIOS power services. 
+ *	Enable or disable the APM BIOS power services.
  */
- 
+
 static int apm_enable_power_management(int enable)
 {
-	u32	eax;
+	u32 eax;
 
 	if ((enable == 0) && (apm_info.bios.flags & APM_BIOS_DISENGAGED))
 		return APM_NOT_ENGAGED;
 	if (apm_bios_call_simple(APM_FUNC_ENABLE_PM, APM_DEVICE_BALL,
-			enable, &eax))
+				 enable, &eax))
 		return (eax >> 8) & 0xff;
 	if (enable)
 		apm_info.bios.flags &= ~APM_BIOS_DISABLED;
@@ -982,19 +983,19 @@ static int apm_enable_power_management(int enable)
  *	if reported is a lifetime in secodnds/minutes at current powwer
  *	consumption.
  */
- 
+
 static int apm_get_power_status(u_short *status, u_short *bat, u_short *life)
 {
-	u32	eax;
-	u32	ebx;
-	u32	ecx;
-	u32	edx;
-	u32	dummy;
+	u32 eax;
+	u32 ebx;
+	u32 ecx;
+	u32 edx;
+	u32 dummy;
 
 	if (apm_info.get_power_status_broken)
 		return APM_32_UNSUPPORTED;
 	if (apm_bios_call(APM_FUNC_GET_STATUS, APM_DEVICE_ALL, 0,
-			&eax, &ebx, &ecx, &edx, &dummy))
+			  &eax, &ebx, &ecx, &edx, &dummy))
 		return (eax >> 8) & 0xff;
 	*status = ebx;
 	*bat = ecx;
@@ -1010,11 +1011,11 @@ static int apm_get_power_status(u_short *status, u_short *bat, u_short *life)
 static int apm_get_battery_status(u_short which, u_short *status,
 				  u_short *bat, u_short *life, u_short *nbat)
 {
-	u32	eax;
-	u32	ebx;
-	u32	ecx;
-	u32	edx;
-	u32	esi;
+	u32 eax;
+	u32 ebx;
+	u32 ecx;
+	u32 edx;
+	u32 esi;
 
 	if (apm_info.connection_version < 0x0102) {
 		/* pretend we only have one battery. */
@@ -1025,7 +1026,7 @@ static int apm_get_battery_status(u_short which, u_short *status,
 	}
 
 	if (apm_bios_call(APM_FUNC_GET_STATUS, (0x8000 | (which)), 0, &eax,
-			&ebx, &ecx, &edx, &esi))
+			  &ebx, &ecx, &edx, &esi))
 		return (eax >> 8) & 0xff;
 	*status = ebx;
 	*bat = ecx;
@@ -1043,10 +1044,10 @@ static int apm_get_battery_status(u_short which, u_short *status,
  *	Activate or deactive power management on either a specific device
  *	or the entire system (%APM_DEVICE_ALL).
  */
- 
+
 static int apm_engage_power_management(u_short device, int enable)
 {
-	u32	eax;
+	u32 eax;
 
 	if ((enable == 0) && (device == APM_DEVICE_ALL)
 	    && (apm_info.bios.flags & APM_BIOS_DISABLED))
@@ -1073,7 +1074,7 @@ static int apm_engage_power_management(u_short device, int enable)
  *	all video devices. Typically the BIOS will do laptop backlight and
  *	monitor powerdown for us.
  */
- 
+
 static int apm_console_blank(int blank)
 {
 	int error = APM_NOT_ENGAGED; /* silence gcc */
@@ -1125,7 +1126,7 @@ static apm_event_t get_queued_event(struct apm_user *as)
 
 static void queue_event(apm_event_t event, struct apm_user *sender)
 {
-	struct apm_user *	as;
+	struct apm_user *as;
 
 	spin_lock(&user_list_lock);
 	if (user_list == NULL)
@@ -1185,7 +1186,7 @@ static void reinit_timer(void)
 
 static int suspend(int vetoable)
 {
-	int		err;
+	int err;
 	struct apm_user	*as;
 
 	if (pm_send_all(PM_SUSPEND, (void *)3)) {
@@ -1238,7 +1239,7 @@ static int suspend(int vetoable)
 
 static void standby(void)
 {
-	int	err;
+	int err;
 
 	local_irq_disable();
 	device_power_down(PMSG_SUSPEND);
@@ -1255,8 +1256,8 @@ static void standby(void)
 
 static apm_event_t get_event(void)
 {
-	int		error;
-	apm_event_t	event = APM_NO_EVENTS; /* silence gcc */
+	int error;
+	apm_event_t event = APM_NO_EVENTS; /* silence gcc */
 	apm_eventinfo_t	info;
 
 	static int notified;
@@ -1274,9 +1275,9 @@ static apm_event_t get_event(void)
 
 static void check_events(void)
 {
-	apm_event_t		event;
-	static unsigned long	last_resume;
-	static int		ignore_bounce;
+	apm_event_t event;
+	static unsigned long last_resume;
+	static int ignore_bounce;
 
 	while ((event = get_event()) != 0) {
 		if (debug) {
@@ -1356,7 +1357,7 @@ static void check_events(void)
 			/*
 			 * We are not allowed to reject a critical suspend.
 			 */
-			(void) suspend(0);
+			(void)suspend(0);
 			break;
 		}
 	}
@@ -1364,12 +1365,12 @@ static void check_events(void)
 
 static void apm_event_handler(void)
 {
-	static int	pending_count = 4;
-	int		err;
+	static int pending_count = 4;
+	int err;
 
 	if ((standbys_pending > 0) || (suspends_pending > 0)) {
 		if ((apm_info.connection_version > 0x100) &&
-				(pending_count-- <= 0)) {
+		    (pending_count-- <= 0)) {
 			pending_count = 4;
 			if (debug)
 				printk(KERN_DEBUG "apm: setting state busy\n");
@@ -1417,9 +1418,9 @@ static int check_apm_user(struct apm_user *as, const char *func)
 
 static ssize_t do_read(struct file *fp, char __user *buf, size_t count, loff_t *ppos)
 {
-	struct apm_user *	as;
-	int			i;
-	apm_event_t		event;
+	struct apm_user *as;
+	int i;
+	apm_event_t event;
 
 	as = fp->private_data;
 	if (check_apm_user(as, "read"))
@@ -1458,9 +1459,9 @@ static ssize_t do_read(struct file *fp, char __user *buf, size_t count, loff_t *
 	return 0;
 }
 
-static unsigned int do_poll(struct file *fp, poll_table * wait)
+static unsigned int do_poll(struct file *fp, poll_table *wait)
 {
-	struct apm_user * as;
+	struct apm_user *as;
 
 	as = fp->private_data;
 	if (check_apm_user(as, "poll"))
@@ -1471,10 +1472,10 @@ static unsigned int do_poll(struct file *fp, poll_table * wait)
 	return 0;
 }
 
-static int do_ioctl(struct inode * inode, struct file *filp,
+static int do_ioctl(struct inode *inode, struct file *filp,
 		    u_int cmd, u_long arg)
 {
-	struct apm_user *	as;
+	struct apm_user *as;
 
 	as = filp->private_data;
 	if (check_apm_user(as, "ioctl"))
@@ -1514,9 +1515,9 @@ static int do_ioctl(struct inode * inode, struct file *filp,
 	return 0;
 }
 
-static int do_release(struct inode * inode, struct file * filp)
+static int do_release(struct inode *inode, struct file *filp)
 {
-	struct apm_user *	as;
+	struct apm_user *as;
 
 	as = filp->private_data;
 	if (check_apm_user(as, "release"))
@@ -1532,11 +1533,11 @@ static int do_release(struct inode * inode, struct file * filp)
 		if (suspends_pending <= 0)
 			(void) suspend(1);
 	}
-  	spin_lock(&user_list_lock);
+	spin_lock(&user_list_lock);
 	if (user_list == as)
 		user_list = as->next;
 	else {
-		struct apm_user *	as1;
+		struct apm_user *as1;
 
 		for (as1 = user_list;
 		     (as1 != NULL) && (as1->next != as);
@@ -1552,9 +1553,9 @@ static int do_release(struct inode * inode, struct file * filp)
 	return 0;
 }
 
-static int do_open(struct inode * inode, struct file * filp)
+static int do_open(struct inode *inode, struct file *filp)
 {
-	struct apm_user *	as;
+	struct apm_user *as;
 
 	as = kmalloc(sizeof(*as), GFP_KERNEL);
 	if (as == NULL) {
@@ -1568,7 +1569,7 @@ static int do_open(struct inode * inode, struct file * filp)
 	as->suspends_read = as->standbys_read = 0;
 	/*
 	 * XXX - this is a tiny bit broken, when we consider BSD
-         * process accounting. If the device is opened by root, we
+	 * process accounting. If the device is opened by root, we
 	 * instantly flag that we used superuser privs. Who knows,
 	 * we might close the device immediately without doing a
 	 * privileged operation -- cevans
@@ -1651,16 +1652,16 @@ static int proc_apm_show(struct seq_file *m, void *v)
 	   8) min = minutes; sec = seconds */
 
 	seq_printf(m, "%s %d.%d 0x%02x 0x%02x 0x%02x 0x%02x %d%% %d %s\n",
-		     driver_version,
-		     (apm_info.bios.version >> 8) & 0xff,
-		     apm_info.bios.version & 0xff,
-		     apm_info.bios.flags,
-		     ac_line_status,
-		     battery_status,
-		     battery_flag,
-		     percentage,
-		     time_units,
-		     units);
+		   driver_version,
+		   (apm_info.bios.version >> 8) & 0xff,
+		   apm_info.bios.version & 0xff,
+		   apm_info.bios.flags,
+		   ac_line_status,
+		   battery_status,
+		   battery_flag,
+		   percentage,
+		   time_units,
+		   units);
 	return 0;
 }
 
@@ -1683,8 +1684,8 @@ static int apm(void *unused)
 	unsigned short	cx;
 	unsigned short	dx;
 	int		error;
-	char *		power_stat;
-	char *		bat_stat;
+	char 		*power_stat;
+	char 		*bat_stat;
 
 #ifdef CONFIG_SMP
 	/* 2002/08/01 - WT
@@ -1743,23 +1744,41 @@ static int apm(void *unused)
 		}
 	}
 
-	if (debug && (num_online_cpus() == 1 || smp )) {
+	if (debug && (num_online_cpus() == 1 || smp)) {
 		error = apm_get_power_status(&bx, &cx, &dx);
 		if (error)
 			printk(KERN_INFO "apm: power status not available\n");
 		else {
 			switch ((bx >> 8) & 0xff) {
-			case 0: power_stat = "off line"; break;
-			case 1: power_stat = "on line"; break;
-			case 2: power_stat = "on backup power"; break;
-			default: power_stat = "unknown"; break;
+			case 0:
+				power_stat = "off line";
+				break;
+			case 1:
+				power_stat = "on line";
+				break;
+			case 2:
+				power_stat = "on backup power";
+				break;
+			default:
+				power_stat = "unknown";
+				break;
 			}
 			switch (bx & 0xff) {
-			case 0: bat_stat = "high"; break;
-			case 1: bat_stat = "low"; break;
-			case 2: bat_stat = "critical"; break;
-			case 3: bat_stat = "charging"; break;
-			default: bat_stat = "unknown"; break;
+			case 0:
+				bat_stat = "high";
+				break;
+			case 1:
+				bat_stat = "low";
+				break;
+			case 2:
+				bat_stat = "critical";
+				break;
+			case 3:
+				bat_stat = "charging";
+				break;
+			default:
+				bat_stat = "unknown";
+				break;
 			}
 			printk(KERN_INFO
 			       "apm: AC %s, battery status %s, battery life ",
@@ -1776,8 +1795,8 @@ static int apm(void *unused)
 					printk("unknown\n");
 				else
 					printk("%d %s\n", dx & 0x7fff,
-						(dx & 0x8000) ?
-						"minutes" : "seconds");
+					       (dx & 0x8000) ?
+					       "minutes" : "seconds");
 			}
 		}
 	}
@@ -1802,7 +1821,7 @@ static int apm(void *unused)
 #ifndef MODULE
 static int __init apm_setup(char *str)
 {
-	int	invert;
+	int invert;
 
 	while ((str != NULL) && (*str != '\0')) {
 		if (strncmp(str, "off", 3) == 0)
@@ -1827,14 +1846,13 @@ static int __init apm_setup(char *str)
 		if ((strncmp(str, "power-off", 9) == 0) ||
 		    (strncmp(str, "power_off", 9) == 0))
 			power_off = !invert;
-		if (strncmp(str, "smp", 3) == 0)
-		{
+		if (strncmp(str, "smp", 3) == 0) {
 			smp = !invert;
 			idle_threshold = 100;
 		}
 		if ((strncmp(str, "allow-ints", 10) == 0) ||
 		    (strncmp(str, "allow_ints", 10) == 0))
- 			apm_info.allow_ints = !invert;
+			apm_info.allow_ints = !invert;
 		if ((strncmp(str, "broken-psr", 10) == 0) ||
 		    (strncmp(str, "broken_psr", 10) == 0))
 			apm_info.get_power_status_broken = !invert;
@@ -1880,7 +1898,8 @@ static int __init print_if_true(const struct dmi_system_id *d)
  */
 static int __init broken_ps2_resume(const struct dmi_system_id *d)
 {
-	printk(KERN_INFO "%s machine detected. Mousepad Resume Bug workaround hopefully not needed.\n", d->ident);
+	printk(KERN_INFO "%s machine detected. Mousepad Resume Bug "
+	       "workaround hopefully not needed.\n", d->ident);
 	return 0;
 }
 
@@ -1889,7 +1908,8 @@ static int __init set_realmode_power_off(const struct dmi_system_id *d)
 {
 	if (apm_info.realmode_power_off == 0) {
 		apm_info.realmode_power_off = 1;
-		printk(KERN_INFO "%s bios detected. Using realmode poweroff only.\n", d->ident);
+		printk(KERN_INFO "%s bios detected. "
+		       "Using realmode poweroff only.\n", d->ident);
 	}
 	return 0;
 }
@@ -1899,7 +1919,8 @@ static int __init set_apm_ints(const struct dmi_system_id *d)
 {
 	if (apm_info.allow_ints == 0) {
 		apm_info.allow_ints = 1;
-		printk(KERN_INFO "%s machine detected. Enabling interrupts during APM calls.\n", d->ident);
+		printk(KERN_INFO "%s machine detected. "
+		       "Enabling interrupts during APM calls.\n", d->ident);
 	}
 	return 0;
 }
@@ -1909,7 +1930,8 @@ static int __init apm_is_horked(const struct dmi_system_id *d)
 {
 	if (apm_info.disabled == 0) {
 		apm_info.disabled = 1;
-		printk(KERN_INFO "%s machine detected. Disabling APM.\n", d->ident);
+		printk(KERN_INFO "%s machine detected. "
+		       "Disabling APM.\n", d->ident);
 	}
 	return 0;
 }
@@ -1918,7 +1940,8 @@ static int __init apm_is_horked_d850md(const struct dmi_system_id *d)
 {
 	if (apm_info.disabled == 0) {
 		apm_info.disabled = 1;
-		printk(KERN_INFO "%s machine detected. Disabling APM.\n", d->ident);
+		printk(KERN_INFO "%s machine detected. "
+		       "Disabling APM.\n", d->ident);
 		printk(KERN_INFO "This bug is fixed in bios P15 which is available for \n");
 		printk(KERN_INFO "download from support.intel.com \n");
 	}
@@ -1930,7 +1953,8 @@ static int __init apm_likes_to_melt(const struct dmi_system_id *d)
 {
 	if (apm_info.forbid_idle == 0) {
 		apm_info.forbid_idle = 1;
-		printk(KERN_INFO "%s machine detected. Disabling APM idle calls.\n", d->ident);
+		printk(KERN_INFO "%s machine detected. "
+		       "Disabling APM idle calls.\n", d->ident);
 	}
 	return 0;
 }
@@ -1953,7 +1977,8 @@ static int __init apm_likes_to_melt(const struct dmi_system_id *d)
 static int __init broken_apm_power(const struct dmi_system_id *d)
 {
 	apm_info.get_power_status_broken = 1;
-	printk(KERN_WARNING "BIOS strings suggest APM bugs, disabling power status reporting.\n");
+	printk(KERN_WARNING "BIOS strings suggest APM bugs, "
+	       "disabling power status reporting.\n");
 	return 0;
 }
 
@@ -1964,7 +1989,8 @@ static int __init broken_apm_power(const struct dmi_system_id *d)
 static int __init swab_apm_power_in_minutes(const struct dmi_system_id *d)
 {
 	apm_info.get_power_status_swabinminutes = 1;
-	printk(KERN_WARNING "BIOS strings suggest APM reports battery life in minutes and wrong byte order.\n");
+	printk(KERN_WARNING "BIOS strings suggest APM reports battery life "
+	       "in minutes and wrong byte order.\n");
 	return 0;
 }
 
@@ -1989,8 +2015,8 @@ static struct dmi_system_id __initdata apm_dmi_table[] = {
 		apm_is_horked, "Dell Inspiron 2500",
 		{	DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 2500"),
-			DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
-			DMI_MATCH(DMI_BIOS_VERSION,"A11"), },
+			DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+			DMI_MATCH(DMI_BIOS_VERSION, "A11"), },
 	},
 	{	/* Allow interrupts during suspend on Dell Inspiron laptops*/
 		set_apm_ints, "Dell Inspiron", {
@@ -2013,15 +2039,15 @@ static struct dmi_system_id __initdata apm_dmi_table[] = {
 		apm_is_horked, "Dell Dimension 4100",
 		{	DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "XPS-Z"),
-			DMI_MATCH(DMI_BIOS_VENDOR,"Intel Corp."),
-			DMI_MATCH(DMI_BIOS_VERSION,"A11"), },
+			DMI_MATCH(DMI_BIOS_VENDOR, "Intel Corp."),
+			DMI_MATCH(DMI_BIOS_VERSION, "A11"), },
 	},
 	{	/* Allow interrupts during suspend on Compaq Laptops*/
 		set_apm_ints, "Compaq 12XL125",
 		{	DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "Compaq PC"),
 			DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
-			DMI_MATCH(DMI_BIOS_VERSION,"4.06"), },
+			DMI_MATCH(DMI_BIOS_VERSION, "4.06"), },
 	},
 	{	/* Allow interrupts during APM or the clock goes slow */
 		set_apm_ints, "ASUSTeK",
@@ -2063,15 +2089,15 @@ static struct dmi_system_id __initdata apm_dmi_table[] = {
 		apm_is_horked, "Sharp PC-PJ/AX",
 		{	DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "PC-PJ/AX"),
-			DMI_MATCH(DMI_BIOS_VENDOR,"SystemSoft"),
-			DMI_MATCH(DMI_BIOS_VERSION,"Version R2.08"), },
+			DMI_MATCH(DMI_BIOS_VENDOR, "SystemSoft"),
+			DMI_MATCH(DMI_BIOS_VERSION, "Version R2.08"), },
 	},
 	{	/* APM crashes */
 		apm_is_horked, "Dell Inspiron 2500",
 		{	DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 2500"),
-			DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
-			DMI_MATCH(DMI_BIOS_VERSION,"A11"), },
+			DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+			DMI_MATCH(DMI_BIOS_VERSION, "A11"), },
 	},
 	{	/* APM idle hangs */
 		apm_likes_to_melt, "Jabil AMD",
@@ -2202,11 +2228,11 @@ static int __init apm_init(void)
 		return -ENODEV;
 	}
 	printk(KERN_INFO
-		"apm: BIOS version %d.%d Flags 0x%02x (Driver version %s)\n",
-		((apm_info.bios.version >> 8) & 0xff),
-		(apm_info.bios.version & 0xff),
-		apm_info.bios.flags,
-		driver_version);
+	       "apm: BIOS version %d.%d Flags 0x%02x (Driver version %s)\n",
+	       ((apm_info.bios.version >> 8) & 0xff),
+	       (apm_info.bios.version & 0xff),
+	       apm_info.bios.flags,
+	       driver_version);
 	if ((apm_info.bios.flags & APM_32_BIT_SUPPORT) == 0) {
 		printk(KERN_INFO "apm: no 32 bit BIOS support\n");
 		return -ENODEV;
@@ -2311,9 +2337,9 @@ static int __init apm_init(void)
 	}
 	wake_up_process(kapmd_task);
 
-	if (num_online_cpus() > 1 && !smp ) {
+	if (num_online_cpus() > 1 && !smp) {
 		printk(KERN_NOTICE
-		   "apm: disabled - APM is not SMP safe (power off active).\n");
+		       "apm: disabled - APM is not SMP safe (power off active).\n");
 		return 0;
 	}
 
@@ -2338,7 +2364,7 @@ static int __init apm_init(void)
 
 static void __exit apm_exit(void)
 {
-	int	error;
+	int error;
 
 	if (set_pm_idle) {
 		pm_idle = original_pm_idle;
-- 
cgit v1.2.3-59-g8ed1b


From b506a9d08bae9336ff9223c8a46a37bf27bd924a Mon Sep 17 00:00:00 2001
From: Quentin Barnes <qbarnes@gmail.com>
Date: Wed, 30 Jan 2008 13:32:32 +0100
Subject: x86: code clarification patch to Kprobes arch code

When developing the Kprobes arch code for ARM, I ran across some code
found in x86 and s390 Kprobes arch code which I didn't consider as
good as it could be.

Once I figured out what the code was doing, I changed the code
for ARM Kprobes to work the way I felt was more appropriate.
I've tested the code this way in ARM for about a year and would
like to push the same change to the other affected architectures.

The code in question is in kprobe_exceptions_notify() which
does:
====
          /* kprobe_running() needs smp_processor_id() */
          preempt_disable();
          if (kprobe_running() &&
              kprobe_fault_handler(args->regs, args->trapnr))
                  ret = NOTIFY_STOP;
          preempt_enable();
====

For the moment, ignore the code having the preempt_disable()/
preempt_enable() pair in it.

The problem is that kprobe_running() needs to call smp_processor_id()
which will assert if preemption is enabled.  That sanity check by
smp_processor_id() makes perfect sense since calling it with preemption
enabled would return an unreliable result.

But the function kprobe_exceptions_notify() can be called from a
context where preemption could be enabled.  If that happens, the
assertion in smp_processor_id() happens and we're dead.  So what
the original author did (speculation on my part!) is put in the
preempt_disable()/preempt_enable() pair to simply defeat the check.

Once I figured out what was going on, I considered this an
inappropriate approach.  If kprobe_exceptions_notify() is called
from a preemptible context, we can't be in a kprobe processing
context at that time anyways since kprobes requires preemption to
already be disabled, so just check for preemption enabled, and if
so, blow out before ever calling kprobe_running().  I wrote the ARM
kprobe code like this:
====
          /* To be potentially processing a kprobe fault and to
           * trust the result from kprobe_running(), we have
           * be non-preemptible. */
          if (!preemptible() && kprobe_running() &&
              kprobe_fault_handler(args->regs, args->trapnr))
                  ret = NOTIFY_STOP;
====

The above code has been working fine for ARM Kprobes for a year.
So I changed the x86 code (2.6.24-rc6) to be the same way and ran
the Systemtap tests on that kernel.  As on ARM, Systemtap on x86
comes up with the same test results either way, so it's a neutral
external functional change (as expected).

This issue has been discussed previously on linux-arm-kernel and the
Systemtap mailing lists.  Pointers to the by base for the two
discussions:
http://lists.arm.linux.org.uk/lurker/message/20071219.223225.1f5c2a5e.en.html
http://sourceware.org/ml/systemtap/2007-q1/msg00251.html

Signed-off-by: Quentin Barnes <qbarnes@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Ananth N Mavinakayahanalli <ananth@in.ibm.com>
Acked-by: Ananth N Mavinakayahanalli <ananth@in.ibm.com>
---
 arch/x86/kernel/kprobes.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index a72e02bf1135..711fec8f6379 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -44,6 +44,7 @@
 #include <linux/ptrace.h>
 #include <linux/string.h>
 #include <linux/slab.h>
+#include <linux/hardirq.h>
 #include <linux/preempt.h>
 #include <linux/module.h>
 #include <linux/kdebug.h>
@@ -951,12 +952,14 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
 			ret = NOTIFY_STOP;
 		break;
 	case DIE_GPF:
-		/* kprobe_running() needs smp_processor_id() */
-		preempt_disable();
-		if (kprobe_running() &&
+		/*
+		 * To be potentially processing a kprobe fault and to
+		 * trust the result from kprobe_running(), we have
+		 * be non-preemptible.
+		 */
+		if (!preemptible() && kprobe_running() &&
 		    kprobe_fault_handler(args->regs, args->trapnr))
 			ret = NOTIFY_STOP;
-		preempt_enable();
 		break;
 	default:
 		break;
-- 
cgit v1.2.3-59-g8ed1b


From b75f53dba8a4a61fda1ff7e0fb0fe3b0d80e0c64 Mon Sep 17 00:00:00 2001
From: "Carlos R. Mafra" <crmafra@gmail.com>
Date: Wed, 30 Jan 2008 13:32:33 +0100
Subject: x86: fix style errors in nmi_int.c

This patch fixes most errors detected by checkpatch.pl.

                                     errors   lines of code   errors/KLOC
arch/x86/oprofile/nmi_int.c (after)       1             461           2.1
arch/x86/oprofile/nmi_int.c (before)     60             477         125.7

No code changed.

size:
   text    data     bss     dec     hex filename
   2675     264     472    3411     d53 nmi_int.o.after
   2675     264     472    3411     d53 nmi_int.o.before

md5sum:
  847aea0cc68fe1a2b5e7019439f3b4dd  nmi_int.o.after
  847aea0cc68fe1a2b5e7019439f3b4dd  nmi_int.o.before

Signed-off-by: Carlos R. Mafra <crmafra@gmail.com>
Reviewed-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/oprofile/nmi_int.c | 212 ++++++++++++++++++++------------------------
 1 file changed, 98 insertions(+), 114 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index c8ab79ef4276..1f11cf0a307f 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -18,11 +18,11 @@
 #include <asm/nmi.h>
 #include <asm/msr.h>
 #include <asm/apic.h>
- 
+
 #include "op_counter.h"
 #include "op_x86_model.h"
 
-static struct op_x86_model_spec const * model;
+static struct op_x86_model_spec const *model;
 static struct op_msrs cpu_msrs[NR_CPUS];
 static unsigned long saved_lvtpc[NR_CPUS];
 
@@ -41,7 +41,6 @@ static int nmi_suspend(struct sys_device *dev, pm_message_t state)
 	return 0;
 }
 
-
 static int nmi_resume(struct sys_device *dev)
 {
 	if (nmi_enabled == 1)
@@ -49,29 +48,27 @@ static int nmi_resume(struct sys_device *dev)
 	return 0;
 }
 
-
 static struct sysdev_class oprofile_sysclass = {
 	.name		= "oprofile",
 	.resume		= nmi_resume,
 	.suspend	= nmi_suspend,
 };
 
-
 static struct sys_device device_oprofile = {
 	.id	= 0,
 	.cls	= &oprofile_sysclass,
 };
 
-
 static int __init init_sysfs(void)
 {
 	int error;
-	if (!(error = sysdev_class_register(&oprofile_sysclass)))
+
+	error = sysdev_class_register(&oprofile_sysclass);
+	if (!error)
 		error = sysdev_register(&device_oprofile);
 	return error;
 }
 
-
 static void exit_sysfs(void)
 {
 	sysdev_unregister(&device_oprofile);
@@ -90,7 +87,7 @@ static int profile_exceptions_notify(struct notifier_block *self,
 	int ret = NOTIFY_DONE;
 	int cpu = smp_processor_id();
 
-	switch(val) {
+	switch (val) {
 	case DIE_NMI:
 		if (model->check_ctrs(args->regs, &cpu_msrs[cpu]))
 			ret = NOTIFY_STOP;
@@ -101,24 +98,24 @@ static int profile_exceptions_notify(struct notifier_block *self,
 	return ret;
 }
 
-static void nmi_cpu_save_registers(struct op_msrs * msrs)
+static void nmi_cpu_save_registers(struct op_msrs *msrs)
 {
 	unsigned int const nr_ctrs = model->num_counters;
-	unsigned int const nr_ctrls = model->num_controls; 
-	struct op_msr * counters = msrs->counters;
-	struct op_msr * controls = msrs->controls;
+	unsigned int const nr_ctrls = model->num_controls;
+	struct op_msr *counters = msrs->counters;
+	struct op_msr *controls = msrs->controls;
 	unsigned int i;
 
 	for (i = 0; i < nr_ctrs; ++i) {
-		if (counters[i].addr){
+		if (counters[i].addr) {
 			rdmsr(counters[i].addr,
 				counters[i].saved.low,
 				counters[i].saved.high);
 		}
 	}
- 
+
 	for (i = 0; i < nr_ctrls; ++i) {
-		if (controls[i].addr){
+		if (controls[i].addr) {
 			rdmsr(controls[i].addr,
 				controls[i].saved.low,
 				controls[i].saved.high);
@@ -126,15 +123,13 @@ static void nmi_cpu_save_registers(struct op_msrs * msrs)
 	}
 }
 
-
-static void nmi_save_registers(void * dummy)
+static void nmi_save_registers(void *dummy)
 {
 	int cpu = smp_processor_id();
-	struct op_msrs * msrs = &cpu_msrs[cpu];
+	struct op_msrs *msrs = &cpu_msrs[cpu];
 	nmi_cpu_save_registers(msrs);
 }
 
-
 static void free_msrs(void)
 {
 	int i;
@@ -146,7 +141,6 @@ static void free_msrs(void)
 	}
 }
 
-
 static int allocate_msrs(void)
 {
 	int success = 1;
@@ -173,11 +167,10 @@ static int allocate_msrs(void)
 	return success;
 }
 
-
-static void nmi_cpu_setup(void * dummy)
+static void nmi_cpu_setup(void *dummy)
 {
 	int cpu = smp_processor_id();
-	struct op_msrs * msrs = &cpu_msrs[cpu];
+	struct op_msrs *msrs = &cpu_msrs[cpu];
 	spin_lock(&oprofilefs_lock);
 	model->setup_ctrs(msrs);
 	spin_unlock(&oprofilefs_lock);
@@ -193,13 +186,14 @@ static struct notifier_block profile_exceptions_nb = {
 
 static int nmi_setup(void)
 {
-	int err=0;
+	int err = 0;
 	int cpu;
 
 	if (!allocate_msrs())
 		return -ENOMEM;
 
-	if ((err = register_die_notifier(&profile_exceptions_nb))){
+	err = register_die_notifier(&profile_exceptions_nb);
+	if (err) {
 		free_msrs();
 		return err;
 	}
@@ -210,7 +204,7 @@ static int nmi_setup(void)
 
 	/* Assume saved/restored counters are the same on all CPUs */
 	model->fill_in_addresses(&cpu_msrs[0]);
-	for_each_possible_cpu (cpu) {
+	for_each_possible_cpu(cpu) {
 		if (cpu != 0) {
 			memcpy(cpu_msrs[cpu].counters, cpu_msrs[0].counters,
 				sizeof(struct op_msr) * model->num_counters);
@@ -226,39 +220,37 @@ static int nmi_setup(void)
 	return 0;
 }
 
-
-static void nmi_restore_registers(struct op_msrs * msrs)
+static void nmi_restore_registers(struct op_msrs *msrs)
 {
 	unsigned int const nr_ctrs = model->num_counters;
-	unsigned int const nr_ctrls = model->num_controls; 
-	struct op_msr * counters = msrs->counters;
-	struct op_msr * controls = msrs->controls;
+	unsigned int const nr_ctrls = model->num_controls;
+	struct op_msr *counters = msrs->counters;
+	struct op_msr *controls = msrs->controls;
 	unsigned int i;
 
 	for (i = 0; i < nr_ctrls; ++i) {
-		if (controls[i].addr){
+		if (controls[i].addr) {
 			wrmsr(controls[i].addr,
 				controls[i].saved.low,
 				controls[i].saved.high);
 		}
 	}
- 
+
 	for (i = 0; i < nr_ctrs; ++i) {
-		if (counters[i].addr){
+		if (counters[i].addr) {
 			wrmsr(counters[i].addr,
 				counters[i].saved.low,
 				counters[i].saved.high);
 		}
 	}
 }
- 
 
-static void nmi_cpu_shutdown(void * dummy)
+static void nmi_cpu_shutdown(void *dummy)
 {
 	unsigned int v;
 	int cpu = smp_processor_id();
-	struct op_msrs * msrs = &cpu_msrs[cpu];
- 
+	struct op_msrs *msrs = &cpu_msrs[cpu];
+
 	/* restoring APIC_LVTPC can trigger an apic error because the delivery
 	 * mode and vector nr combination can be illegal. That's by design: on
 	 * power on apic lvt contain a zero vector nr which are legal only for
@@ -271,7 +263,6 @@ static void nmi_cpu_shutdown(void * dummy)
 	nmi_restore_registers(msrs);
 }
 
- 
 static void nmi_shutdown(void)
 {
 	nmi_enabled = 0;
@@ -281,45 +272,40 @@ static void nmi_shutdown(void)
 	free_msrs();
 }
 
- 
-static void nmi_cpu_start(void * dummy)
+static void nmi_cpu_start(void *dummy)
 {
-	struct op_msrs const * msrs = &cpu_msrs[smp_processor_id()];
+	struct op_msrs const *msrs = &cpu_msrs[smp_processor_id()];
 	model->start(msrs);
 }
- 
 
 static int nmi_start(void)
 {
 	on_each_cpu(nmi_cpu_start, NULL, 0, 1);
 	return 0;
 }
- 
- 
-static void nmi_cpu_stop(void * dummy)
+
+static void nmi_cpu_stop(void *dummy)
 {
-	struct op_msrs const * msrs = &cpu_msrs[smp_processor_id()];
+	struct op_msrs const *msrs = &cpu_msrs[smp_processor_id()];
 	model->stop(msrs);
 }
- 
- 
+
 static void nmi_stop(void)
 {
 	on_each_cpu(nmi_cpu_stop, NULL, 0, 1);
 }
 
-
 struct op_counter_config counter_config[OP_MAX_COUNTER];
 
-static int nmi_create_files(struct super_block * sb, struct dentry * root)
+static int nmi_create_files(struct super_block *sb, struct dentry *root)
 {
 	unsigned int i;
 
 	for (i = 0; i < model->num_counters; ++i) {
-		struct dentry * dir;
+		struct dentry *dir;
 		char buf[4];
- 
- 		/* quick little hack to _not_ expose a counter if it is not
+
+		/* quick little hack to _not_ expose a counter if it is not
 		 * available for use.  This should protect userspace app.
 		 * NOTE:  assumes 1:1 mapping here (that counters are organized
 		 *        sequentially in their struct assignment).
@@ -329,21 +315,21 @@ static int nmi_create_files(struct super_block * sb, struct dentry * root)
 
 		snprintf(buf,  sizeof(buf), "%d", i);
 		dir = oprofilefs_mkdir(sb, root, buf);
-		oprofilefs_create_ulong(sb, dir, "enabled", &counter_config[i].enabled); 
-		oprofilefs_create_ulong(sb, dir, "event", &counter_config[i].event); 
-		oprofilefs_create_ulong(sb, dir, "count", &counter_config[i].count); 
-		oprofilefs_create_ulong(sb, dir, "unit_mask", &counter_config[i].unit_mask); 
-		oprofilefs_create_ulong(sb, dir, "kernel", &counter_config[i].kernel); 
-		oprofilefs_create_ulong(sb, dir, "user", &counter_config[i].user); 
+		oprofilefs_create_ulong(sb, dir, "enabled", &counter_config[i].enabled);
+		oprofilefs_create_ulong(sb, dir, "event", &counter_config[i].event);
+		oprofilefs_create_ulong(sb, dir, "count", &counter_config[i].count);
+		oprofilefs_create_ulong(sb, dir, "unit_mask", &counter_config[i].unit_mask);
+		oprofilefs_create_ulong(sb, dir, "kernel", &counter_config[i].kernel);
+		oprofilefs_create_ulong(sb, dir, "user", &counter_config[i].user);
 	}
 
 	return 0;
 }
- 
+
 static int p4force;
 module_param(p4force, int, 0);
- 
-static int __init p4_init(char ** cpu_type)
+
+static int __init p4_init(char **cpu_type)
 {
 	__u8 cpu_model = boot_cpu_data.x86_model;
 
@@ -356,15 +342,15 @@ static int __init p4_init(char ** cpu_type)
 	return 1;
 #else
 	switch (smp_num_siblings) {
-		case 1:
-			*cpu_type = "i386/p4";
-			model = &op_p4_spec;
-			return 1;
-
-		case 2:
-			*cpu_type = "i386/p4-ht";
-			model = &op_p4_ht2_spec;
-			return 1;
+	case 1:
+		*cpu_type = "i386/p4";
+		model = &op_p4_spec;
+		return 1;
+
+	case 2:
+		*cpu_type = "i386/p4-ht";
+		model = &op_p4_ht2_spec;
+		return 1;
 	}
 #endif
 
@@ -373,8 +359,7 @@ static int __init p4_init(char ** cpu_type)
 	return 0;
 }
 
-
-static int __init ppro_init(char ** cpu_type)
+static int __init ppro_init(char **cpu_type)
 {
 	__u8 cpu_model = boot_cpu_data.x86_model;
 
@@ -409,52 +394,52 @@ int __init op_nmi_init(struct oprofile_operations *ops)
 
 	if (!cpu_has_apic)
 		return -ENODEV;
- 
+
 	switch (vendor) {
-		case X86_VENDOR_AMD:
-			/* Needs to be at least an Athlon (or hammer in 32bit mode) */
+	case X86_VENDOR_AMD:
+		/* Needs to be at least an Athlon (or hammer in 32bit mode) */
 
-			switch (family) {
-			default:
+		switch (family) {
+		default:
+			return -ENODEV;
+		case 6:
+			model = &op_athlon_spec;
+			cpu_type = "i386/athlon";
+			break;
+		case 0xf:
+			model = &op_athlon_spec;
+			/* Actually it could be i386/hammer too, but give
+			 user space an consistent name. */
+			cpu_type = "x86-64/hammer";
+			break;
+		case 0x10:
+			model = &op_athlon_spec;
+			cpu_type = "x86-64/family10";
+			break;
+		}
+		break;
+
+	case X86_VENDOR_INTEL:
+		switch (family) {
+			/* Pentium IV */
+		case 0xf:
+			if (!p4_init(&cpu_type))
 				return -ENODEV;
-			case 6:
-				model = &op_athlon_spec;
-				cpu_type = "i386/athlon";
-				break;
-			case 0xf:
-				model = &op_athlon_spec;
-				/* Actually it could be i386/hammer too, but give
-				   user space an consistent name. */
-				cpu_type = "x86-64/hammer";
-				break;
-			case 0x10:
-				model = &op_athlon_spec;
-				cpu_type = "x86-64/family10";
-				break;
-			}
 			break;
- 
-		case X86_VENDOR_INTEL:
-			switch (family) {
-				/* Pentium IV */
-				case 0xf:
-					if (!p4_init(&cpu_type))
-						return -ENODEV;
-					break;
-
-				/* A P6-class processor */
-				case 6:
-					if (!ppro_init(&cpu_type))
-						return -ENODEV;
-					break;
-
-				default:
-					return -ENODEV;
-			}
+
+			/* A P6-class processor */
+		case 6:
+			if (!ppro_init(&cpu_type))
+				return -ENODEV;
 			break;
 
 		default:
 			return -ENODEV;
+		}
+		break;
+
+	default:
+		return -ENODEV;
 	}
 
 	init_sysfs();
@@ -469,7 +454,6 @@ int __init op_nmi_init(struct oprofile_operations *ops)
 	return 0;
 }
 
-
 void op_nmi_exit(void)
 {
 	if (using_nmi)
-- 
cgit v1.2.3-59-g8ed1b


From b6795e65f158d12d3124379fc50ec156ae60f888 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:32:34 +0100
Subject: x86: fault_32.c cleanup

We get die() from kdebug.h, no need for forward declaration.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 2 --
 1 file changed, 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index bfb0917d699d..870b5610555c 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -42,8 +42,6 @@
 #define PF_RSVD	(1<<3)
 #define PF_INSTR	(1<<4)
 
-extern void die(const char *, struct pt_regs *, long);
-
 static inline int notify_page_fault(struct pt_regs *regs)
 {
 #ifdef CONFIG_KPROBES
-- 
cgit v1.2.3-59-g8ed1b


From 1dc85be087d6645575847dc23c37147a2352312b Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:32:35 +0100
Subject: x86: begin fault_{32|64}.c unification

Move X86_32 only get_segment_eip to X86_64
Move X86_64 only is_errata93 to X86_32

Change X86_32 loop in is_prefetch to highlight the differences
between them.  Fold the logic from __is_prefetch in as well on
X86_32.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c |  97 +++++++++++++++++++++++++++++++-------
 arch/x86/mm/fault_64.c | 124 ++++++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 196 insertions(+), 25 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 870b5610555c..300c9d8b684a 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -61,6 +61,7 @@ static inline int notify_page_fault(struct pt_regs *regs)
 #endif
 }
 
+#ifdef CONFIG_X86_32
 /*
  * Return EIP plus the CS segment base.  The segment limit is also
  * adjusted, clamped to the kernel/user address space (whichever is
@@ -135,26 +136,61 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
 		*eip_limit = seg_limit;
 	return ip + base;
 }
+#endif
 
 /*
+ * X86_32
  * Sometimes AMD Athlon/Opteron CPUs report invalid exceptions on prefetch.
  * Check that here and ignore it.
+ *
+ * X86_64
+ * Sometimes the CPU reports invalid exceptions on prefetch.
+ * Check that here and ignore it.
+ *
+ * Opcode checker based on code by Richard Brunner
  */
-static int __is_prefetch(struct pt_regs *regs, unsigned long addr)
+static int is_prefetch(struct pt_regs *regs, unsigned long addr,
+		       unsigned long error_code)
 {
-	unsigned long limit;
-	unsigned char *instr = (unsigned char *)get_segment_eip(regs, &limit);
+	unsigned char *instr;
 	int scan_more = 1;
 	int prefetch = 0;
-	int i;
+	unsigned char *max_instr;
+
+#ifdef CONFIG_X86_32
+	unsigned long limit;
+	if (unlikely(boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
+		     boot_cpu_data.x86 >= 6)) {
+		/* Catch an obscure case of prefetch inside an NX page. */
+		if (nx_enabled && (error_code & PF_INSTR))
+			return 0;
+	} else {
+		return 0;
+	}
+	instr = (unsigned char *)get_segment_eip(regs, &limit);
+#else
+	/* If it was a exec fault ignore */
+	if (error_code & PF_INSTR)
+		return 0;
+	instr = (unsigned char __user *)convert_rip_to_linear(current, regs);
+#endif
+
+	max_instr = instr + 15;
+
+#ifdef CONFIG_X86_64
+	if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE)
+		return 0;
+#endif
 
-	for (i = 0; scan_more && i < 15; i++) {
+	while (scan_more && instr < max_instr) {
 		unsigned char opcode;
 		unsigned char instr_hi;
 		unsigned char instr_lo;
 
+#ifdef CONFIG_X86_32
 		if (instr > (unsigned char *)limit)
 			break;
+#endif
 		if (probe_kernel_address(instr, opcode))
 			break;
 
@@ -196,8 +232,10 @@ static int __is_prefetch(struct pt_regs *regs, unsigned long addr)
 		case 0x00:
 			/* Prefetch instruction is 0x0F0D or 0x0F18 */
 			scan_more = 0;
+#ifdef CONFIG_X86_32
 			if (instr > (unsigned char *)limit)
 				break;
+#endif
 			if (probe_kernel_address(instr, opcode))
 				break;
 			prefetch = (instr_lo == 0xF) &&
@@ -211,19 +249,6 @@ static int __is_prefetch(struct pt_regs *regs, unsigned long addr)
 	return prefetch;
 }
 
-static inline int is_prefetch(struct pt_regs *regs, unsigned long addr,
-			      unsigned long error_code)
-{
-	if (unlikely(boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
-		     boot_cpu_data.x86 >= 6)) {
-		/* Catch an obscure case of prefetch inside an NX page. */
-		if (nx_enabled && (error_code & 16))
-			return 0;
-		return __is_prefetch(regs, addr);
-	}
-	return 0;
-}
-
 static noinline void force_sig_info_fault(int si_signo, int si_code,
 	unsigned long address, struct task_struct *tsk)
 {
@@ -274,6 +299,42 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 	return pmd_k;
 }
 
+#ifdef CONFIG_X86_64
+static const char errata93_warning[] =
+KERN_ERR "******* Your BIOS seems to not contain a fix for K8 errata #93\n"
+KERN_ERR "******* Working around it, but it may cause SEGVs or burn power.\n"
+KERN_ERR "******* Please consider a BIOS update.\n"
+KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
+
+/* Workaround for K8 erratum #93 & buggy BIOS.
+   BIOS SMM functions are required to use a specific workaround
+   to avoid corruption of the 64bit RIP register on C stepping K8.
+   A lot of BIOS that didn't get tested properly miss this.
+   The OS sees this as a page fault with the upper 32bits of RIP cleared.
+   Try to work around it here.
+   Note we only handle faults in kernel here. */
+
+static int is_errata93(struct pt_regs *regs, unsigned long address)
+{
+	static int warned;
+	if (address != regs->ip)
+		return 0;
+	if ((address >> 32) != 0)
+		return 0;
+	address |= 0xffffffffUL << 32;
+	if ((address >= (u64)_stext && address <= (u64)_etext) ||
+	    (address >= MODULES_VADDR && address <= MODULES_END)) {
+		if (!warned) {
+			printk(errata93_warning);
+			warned = 1;
+		}
+		regs->ip = address;
+		return 1;
+	}
+	return 0;
+}
+#endif
+
 /*
  * Handle a fault on the vmalloc or module mapping area
  *
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 7e98a7691283..0d3d5979ce2c 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -64,32 +64,136 @@ static inline int notify_page_fault(struct pt_regs *regs)
 #endif
 }
 
-/* Sometimes the CPU reports invalid exceptions on prefetch.
-   Check that here and ignore.
-   Opcode checker based on code by Richard Brunner */
-static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr,
-				unsigned long error_code)
+#ifdef CONFIG_X86_32
+/*
+ * Return EIP plus the CS segment base.  The segment limit is also
+ * adjusted, clamped to the kernel/user address space (whichever is
+ * appropriate), and returned in *eip_limit.
+ *
+ * The segment is checked, because it might have been changed by another
+ * task between the original faulting instruction and here.
+ *
+ * If CS is no longer a valid code segment, or if EIP is beyond the
+ * limit, or if it is a kernel address when CS is not a kernel segment,
+ * then the returned value will be greater than *eip_limit.
+ *
+ * This is slow, but is very rarely executed.
+ */
+static inline unsigned long get_segment_eip(struct pt_regs *regs,
+					    unsigned long *eip_limit)
+{
+	unsigned long ip = regs->ip;
+	unsigned seg = regs->cs & 0xffff;
+	u32 seg_ar, seg_limit, base, *desc;
+
+	/* Unlikely, but must come before segment checks. */
+	if (unlikely(regs->flags & VM_MASK)) {
+		base = seg << 4;
+		*eip_limit = base + 0xffff;
+		return base + (ip & 0xffff);
+	}
+
+	/* The standard kernel/user address space limit. */
+	*eip_limit = user_mode(regs) ? USER_DS.seg : KERNEL_DS.seg;
+
+	/* By far the most common cases. */
+	if (likely(SEGMENT_IS_FLAT_CODE(seg)))
+		return ip;
+
+	/* Check the segment exists, is within the current LDT/GDT size,
+	   that kernel/user (ring 0..3) has the appropriate privilege,
+	   that it's a code segment, and get the limit. */
+	__asm__("larl %3,%0; lsll %3,%1"
+		 : "=&r" (seg_ar), "=r" (seg_limit) : "0" (0), "rm" (seg));
+	if ((~seg_ar & 0x9800) || ip > seg_limit) {
+		*eip_limit = 0;
+		return 1;	 /* So that returned ip > *eip_limit. */
+	}
+
+	/* Get the GDT/LDT descriptor base.
+	   When you look for races in this code remember that
+	   LDT and other horrors are only used in user space. */
+	if (seg & (1<<2)) {
+		/* Must lock the LDT while reading it. */
+		mutex_lock(&current->mm->context.lock);
+		desc = current->mm->context.ldt;
+		desc = (void *)desc + (seg & ~7);
+	} else {
+		/* Must disable preemption while reading the GDT. */
+		desc = (u32 *)get_cpu_gdt_table(get_cpu());
+		desc = (void *)desc + (seg & ~7);
+	}
+
+	/* Decode the code segment base from the descriptor */
+	base = get_desc_base((struct desc_struct *)desc);
+
+	if (seg & (1<<2))
+		mutex_unlock(&current->mm->context.lock);
+	else
+		put_cpu();
+
+	/* Adjust EIP and segment limit, and clamp at the kernel limit.
+	   It's legitimate for segments to wrap at 0xffffffff. */
+	seg_limit += base;
+	if (seg_limit < *eip_limit && seg_limit >= base)
+		*eip_limit = seg_limit;
+	return ip + base;
+}
+#endif
+
+/*
+ * X86_32
+ * Sometimes AMD Athlon/Opteron CPUs report invalid exceptions on prefetch.
+ * Check that here and ignore it.
+ *
+ * X86_64
+ * Sometimes the CPU reports invalid exceptions on prefetch.
+ * Check that here and ignore it.
+ *
+ * Opcode checker based on code by Richard Brunner
+ */
+static int is_prefetch(struct pt_regs *regs, unsigned long addr,
+		       unsigned long error_code)
 {
 	unsigned char *instr;
 	int scan_more = 1;
 	int prefetch = 0;
 	unsigned char *max_instr;
 
+#ifdef CONFIG_X86_32
+	unsigned long limit;
+	if (unlikely(boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
+		     boot_cpu_data.x86 >= 6)) {
+		/* Catch an obscure case of prefetch inside an NX page. */
+		if (nx_enabled && (error_code & PF_INSTR))
+			return 0;
+	} else {
+		return 0;
+	}
+	instr = (unsigned char *)get_segment_eip(regs, &limit);
+#else
 	/* If it was a exec fault ignore */
 	if (error_code & PF_INSTR)
 		return 0;
-
 	instr = (unsigned char __user *)convert_rip_to_linear(current, regs);
+#endif
+
 	max_instr = instr + 15;
 
+#ifdef CONFIG_X86_64
 	if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE)
 		return 0;
+#endif
 
 	while (scan_more && instr < max_instr) {
 		unsigned char opcode;
 		unsigned char instr_hi;
 		unsigned char instr_lo;
 
+#ifdef CONFIG_X86_32
+		if (instr > (unsigned char *)limit)
+			break;
+#endif
 		if (probe_kernel_address(instr, opcode))
 			break;
 
@@ -125,12 +229,16 @@ static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr,
 			scan_more = (instr_lo & 0xC) == 0x4;
 			break;
 		case 0xF0:
-			/* 0xF0, 0xF2, and 0xF3 are valid prefixes in all modes. */
+			/* 0xF0, 0xF2, 0xF3 are valid prefixes in all modes. */
 			scan_more = !instr_lo || (instr_lo>>1) == 1;
 			break;
 		case 0x00:
 			/* Prefetch instruction is 0x0F0D or 0x0F18 */
 			scan_more = 0;
+#ifdef CONFIG_X86_32
+			if (instr > (unsigned char *)limit)
+				break;
+#endif
 			if (probe_kernel_address(instr, opcode))
 				break;
 			prefetch = (instr_lo == 0xF) &&
@@ -185,6 +293,7 @@ bad:
 	printk("BAD\n");
 }
 
+#ifdef CONFIG_X86_64
 static const char errata93_warning[] =
 KERN_ERR "******* Your BIOS seems to not contain a fix for K8 errata #93\n"
 KERN_ERR "******* Working around it, but it may cause SEGVs or burn power.\n"
@@ -218,6 +327,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
 	}
 	return 0;
 }
+#endif
 
 static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
 				 unsigned long error_code)
-- 
cgit v1.2.3-59-g8ed1b


From c4aba4a8ec795124394bc79e3e8dbbc319338a98 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:32:35 +0100
Subject: x86: introduce force_sig_info_fault helper to X86_64

Use the force_sig_info_fault helper from X86_32 in X86_64.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c |  2 +-
 arch/x86/mm/fault_64.c | 31 ++++++++++++++++++-------------
 2 files changed, 19 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 300c9d8b684a..b1893ebf6456 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -249,7 +249,7 @@ static int is_prefetch(struct pt_regs *regs, unsigned long addr,
 	return prefetch;
 }
 
-static noinline void force_sig_info_fault(int si_signo, int si_code,
+static void force_sig_info_fault(int si_signo, int si_code,
 	unsigned long address, struct task_struct *tsk)
 {
 	siginfo_t info;
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 0d3d5979ce2c..dcf430bb62ee 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -252,6 +252,18 @@ static int is_prefetch(struct pt_regs *regs, unsigned long addr,
 	return prefetch;
 }
 
+static void force_sig_info_fault(int si_signo, int si_code,
+	unsigned long address, struct task_struct *tsk)
+{
+	siginfo_t info;
+
+	info.si_signo = si_signo;
+	info.si_errno = 0;
+	info.si_code = si_code;
+	info.si_addr = (void __user *)address;
+	force_sig_info(si_signo, &info, tsk);
+}
+
 static int bad_address(void *p)
 {
 	unsigned long dummy;
@@ -415,7 +427,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	unsigned long address;
 	int write, fault;
 	unsigned long flags;
-	siginfo_t info;
+	int si_code;
 
 	/*
 	 * We can fault from pretty much anywhere, with unknown IRQ state.
@@ -429,7 +441,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	/* get the address */
 	address = read_cr2();
 
-	info.si_code = SEGV_MAPERR;
+	si_code = SEGV_MAPERR;
 
 
 	/*
@@ -532,7 +544,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
  * we can handle it..
  */
 good_area:
-	info.si_code = SEGV_ACCERR;
+	si_code = SEGV_ACCERR;
 	write = 0;
 	switch (error_code & (PF_PROT|PF_WRITE)) {
 	default:	/* 3: write, present */
@@ -611,11 +623,8 @@ bad_area_nosemaphore:
 		/* Kernel addresses are always protection faults */
 		tsk->thread.error_code = error_code | (address >= TASK_SIZE);
 		tsk->thread.trap_no = 14;
-		info.si_signo = SIGSEGV;
-		info.si_errno = 0;
-		/* info.si_code has been set above */
-		info.si_addr = (void __user *)address;
-		force_sig_info(SIGSEGV, &info, tsk);
+
+		force_sig_info_fault(SIGSEGV, si_code, address, tsk);
 		return;
 	}
 
@@ -682,11 +691,7 @@ do_sigbus:
 	tsk->thread.cr2 = address;
 	tsk->thread.error_code = error_code;
 	tsk->thread.trap_no = 14;
-	info.si_signo = SIGBUS;
-	info.si_errno = 0;
-	info.si_code = BUS_ADRERR;
-	info.si_addr = (void __user *)address;
-	force_sig_info(SIGBUS, &info, tsk);
+	force_sig_info_fault(SIGBUS, BUS_ADRERR, address, tsk);
 	return;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From e83a5fdca89970f87e06f87a1d18be22b161e2ba Mon Sep 17 00:00:00 2001
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Date: Wed, 30 Jan 2008 13:32:35 +0100
Subject: x86: clean up apic_32/64.c

White space and coding style clean up.
Make apic_32/64.c similar.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic_32.c |  5 ++---
 arch/x86/kernel/apic_64.c | 23 +++++++++++++++++------
 2 files changed, 19 insertions(+), 9 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 4330a899ddcb..ffbad74e5be0 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -577,7 +577,6 @@ static void local_apic_timer_interrupt(void)
  * [ if a single-CPU system runs an SMP kernel then we call the local
  *   interrupt as well. Thus we cannot inline the local irq ... ]
  */
-
 void smp_apic_timer_interrupt(struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
@@ -1021,7 +1020,7 @@ void __cpuinit setup_local_APIC(void)
 /*
  * Detect and initialize APIC
  */
-static int __init detect_init_APIC (void)
+static int __init detect_init_APIC(void)
 {
 	u32 h, l, features;
 
@@ -1165,7 +1164,7 @@ fake_ioapic_page:
  * This initializes the IO-APIC and APIC hardware if this is
  * a UP kernel.
  */
-int __init APIC_init_uniprocessor (void)
+int __init APIC_init_uniprocessor(void)
 {
 	if (enable_local_apic < 0)
 		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 47b8ef51dde0..d1a696673d9d 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -23,33 +23,37 @@
 #include <linux/mc146818rtc.h>
 #include <linux/kernel_stat.h>
 #include <linux/sysdev.h>
-#include <linux/module.h>
 #include <linux/ioport.h>
 #include <linux/clockchips.h>
 #include <linux/acpi_pmtmr.h>
+#include <linux/module.h>
 
 #include <asm/atomic.h>
 #include <asm/smp.h>
 #include <asm/mtrr.h>
 #include <asm/mpspec.h>
+#include <asm/hpet.h>
 #include <asm/pgalloc.h>
 #include <asm/mach_apic.h>
 #include <asm/nmi.h>
 #include <asm/idle.h>
 #include <asm/proto.h>
 #include <asm/timex.h>
-#include <asm/hpet.h>
 #include <asm/apic.h>
 
-int apic_verbosity;
 int disable_apic_timer __cpuinitdata;
 static int apic_calibrate_pmtmr __initdata;
 int disable_apic;
 
-/* Local APIC timer works in C2? */
+/* Local APIC timer works in C2 */
 int local_apic_timer_c2_ok;
 EXPORT_SYMBOL_GPL(local_apic_timer_c2_ok);
 
+/*
+ * Debug level, exported for io_apic.c
+ */
+int apic_verbosity;
+
 static struct resource lapic_resource = {
 	.name = "Local APIC",
 	.flags = IORESOURCE_MEM | IORESOURCE_BUSY,
@@ -355,6 +359,11 @@ static void __init calibrate_APIC_clock(void)
 	calibration_result = result / HZ;
 }
 
+/*
+ * Setup the boot APIC
+ *
+ * Calibrate and verify the result.
+ */
 void __init setup_boot_APIC_clock(void)
 {
 	/*
@@ -1109,8 +1118,8 @@ static struct sysdev_class lapic_sysclass = {
 };
 
 static struct sys_device device_lapic = {
-	.id		= 0,
-	.cls		= &lapic_sysclass,
+	.id	= 0,
+	.cls	= &lapic_sysclass,
 };
 
 static void __cpuinit apic_pm_activate(void)
@@ -1121,9 +1130,11 @@ static void __cpuinit apic_pm_activate(void)
 static int __init init_lapic_sysfs(void)
 {
 	int error;
+
 	if (!cpu_has_apic)
 		return 0;
 	/* XXX: remove suspend/resume procs if !apic_pm_state.active? */
+
 	error = sysdev_class_register(&lapic_sysclass);
 	if (!error)
 		error = sysdev_register(&device_lapic);
-- 
cgit v1.2.3-59-g8ed1b


From 48ddb154cf55fb1e292af49c270b950ef2c6ef32 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:32:36 +0100
Subject: x86: not clear empty_zero_page again

empty_zero_page is in .bss section, and it is cleared in clear_bss by
x86_64_start_kernel(). So don't clear that again in mem_init

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_64.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 15e05a004fcf..6c3f6eb1f790 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -495,8 +495,7 @@ void __init mem_init(void)
 
 	pci_iommu_alloc();
 
-	/* clear the zero-page */
-	memset(empty_zero_page, 0, PAGE_SIZE);
+	/* clear_bss() already clear the empty_zero_page */
 
 	reservedpages = 0;
 
-- 
cgit v1.2.3-59-g8ed1b


From f2633105cd92b793dd6a6f623b4140287d46160a Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:32:36 +0100
Subject: x86: debug: double-check the empty zero page

temporary debugging - remove before this hits v2.6.25.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_64.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 6c3f6eb1f790..05f12c527b02 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -497,6 +497,14 @@ void __init mem_init(void)
 
 	/* clear_bss() already clear the empty_zero_page */
 
+	/* temporary debugging - double check it's true: */
+	{
+		int i;
+
+		for (i = 0; i < 1024; i++)
+			WARN_ON_ONCE(empty_zero_page[i]);
+	}
+
 	reservedpages = 0;
 
 	/* this will put all low memory onto the freelists */
-- 
cgit v1.2.3-59-g8ed1b


From ff8a03a623d8e9a7431b4236a901c02634cd5d43 Mon Sep 17 00:00:00 2001
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Date: Wed, 30 Jan 2008 13:32:36 +0100
Subject: x86: clean up apic_32.c, take 2

More white space and coding style clean up.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic_32.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index ffbad74e5be0..cbcf72cde956 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -46,7 +46,7 @@
 /*
  * Sanity check
  */
-#if (SPURIOUS_APIC_VECTOR & 0x0F) != 0x0F
+#if ((SPURIOUS_APIC_VECTOR & 0x0F) != 0x0F)
 # error SPURIOUS_APIC_VECTOR definition error
 #endif
 
@@ -55,7 +55,7 @@
  *
  * -1=force-disable, +1=force-enable
  */
-static int enable_local_apic __initdata = 0;
+static int enable_local_apic __initdata;
 
 /* Local APIC timer verification ok */
 static int local_apic_timer_verify_ok;
@@ -432,7 +432,7 @@ void __init setup_boot_APIC_clock(void)
 			       "with PM Timer: %ldms instead of 100ms\n",
 			       (long)res);
 			/* Correct the lapic counter value */
-			res = (((u64) delta ) * pm_100ms);
+			res = (((u64) delta) * pm_100ms);
 			do_div(res, deltapm);
 			printk(KERN_INFO "APIC delta adjusted to PM-Timer: "
 			       "%lu (%ld)\n", (unsigned long) res, delta);
@@ -976,7 +976,8 @@ void __cpuinit setup_local_APIC(void)
 		value |= APIC_LVT_LEVEL_TRIGGER;
 	apic_write_around(APIC_LVT1, value);
 
-	if (integrated && !esr_disable) {		/* !82489DX */
+	if (integrated && !esr_disable) {
+		/* !82489DX */
 		maxlvt = lapic_get_maxlvt();
 		if (maxlvt > 3)		/* Due to the Pentium erratum 3AP. */
 			apic_write(APIC_ESR, 0);
@@ -1262,7 +1263,7 @@ void smp_error_interrupt(struct pt_regs *regs)
 	   6: Received illegal vector
 	   7: Illegal register address
 	*/
-	printk (KERN_DEBUG "APIC error on CPU%d: %02lx(%02lx)\n",
+	printk(KERN_DEBUG "APIC error on CPU%d: %02lx(%02lx)\n",
 		smp_processor_id(), v , v1);
 	irq_exit();
 }
@@ -1349,7 +1350,7 @@ void disconnect_bsp_APIC(int virt_wire_setup)
 			value = apic_read(APIC_LVT0);
 			value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING |
 				APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR |
-				APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED );
+				APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED);
 			value |= APIC_LVT_REMOTE_IRR | APIC_SEND_PENDING;
 			value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_EXTINT);
 			apic_write_around(APIC_LVT0, value);
-- 
cgit v1.2.3-59-g8ed1b


From 3aa88cdf6bcc9e510c0707581131b821a7d3b7cb Mon Sep 17 00:00:00 2001
From: "Carlos R. Mafra" <crmafra@gmail.com>
Date: Wed, 30 Jan 2008 13:32:36 +0100
Subject: x86: clean up k8topology.c

This patch fixes all errors pointed out by checkpatch.pl.

                                      errors   lines of code   errors/KLOC
arch/x86/mm/k8topology_64.c (before)      72             185         389.1
arch/x86/mm/k8topology_64.c (after)        0             185             0

No code changed.

   text    data     bss     dec     hex filename
   1506       0       0    1506     5e2 k8topology_64.o.after
   1506       0       0    1506     5e2 k8topology_64.o.before

md5sum:

   f9f48331a7eca4fc60d2a03369dc5f53  k8topology_64.o.after
   f9f48331a7eca4fc60d2a03369dc5f53  k8topology_64.o.before

Signed-off-by: Carlos R. Mafra <crmafra@gmail.com>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/k8topology_64.c | 144 ++++++++++++++++++++++----------------------
 1 file changed, 72 insertions(+), 72 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/k8topology_64.c b/arch/x86/mm/k8topology_64.c
index 3695c9e8b9b6..32b963de9b8f 100644
--- a/arch/x86/mm/k8topology_64.c
+++ b/arch/x86/mm/k8topology_64.c
@@ -1,9 +1,9 @@
-/* 
+/*
  * AMD K8 NUMA support.
  * Discover the memory map and associated nodes.
- * 
+ *
  * This version reads it directly from the K8 northbridge.
- * 
+ *
  * Copyright 2002,2003 Andi Kleen, SuSE Labs.
  */
 #include <linux/kernel.h>
@@ -22,26 +22,26 @@
 
 static __init int find_northbridge(void)
 {
-	int num; 
+	int num;
 
-	for (num = 0; num < 32; num++) { 
+	for (num = 0; num < 32; num++) {
 		u32 header;
-		
-		header = read_pci_config(0, num, 0, 0x00);  
+
+		header = read_pci_config(0, num, 0, 0x00);
 		if (header != (PCI_VENDOR_ID_AMD | (0x1100<<16)))
-			continue; 	
+			continue;
 
-		header = read_pci_config(0, num, 1, 0x00); 
+		header = read_pci_config(0, num, 1, 0x00);
 		if (header != (PCI_VENDOR_ID_AMD | (0x1101<<16)))
-			continue;	
-		return num; 
-	} 
+			continue;
+		return num;
+	}
 
-	return -1; 	
+	return -1;
 }
 
 int __init k8_scan_nodes(unsigned long start, unsigned long end)
-{ 
+{
 	unsigned long prevbase;
 	struct bootnode nodes[8];
 	int nodeid, i, nb;
@@ -56,97 +56,97 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
 	if (!early_pci_allowed())
 		return -1;
 
-	nb = find_northbridge(); 
-	if (nb < 0) 
+	nb = find_northbridge();
+	if (nb < 0)
 		return nb;
 
-	printk(KERN_INFO "Scanning NUMA topology in Northbridge %d\n", nb); 
+	printk(KERN_INFO "Scanning NUMA topology in Northbridge %d\n", nb);
 
-	reg = read_pci_config(0, nb, 0, 0x60); 
+	reg = read_pci_config(0, nb, 0, 0x60);
 	numnodes = ((reg >> 4) & 0xF) + 1;
 	if (numnodes <= 1)
 		return -1;
 
 	printk(KERN_INFO "Number of nodes %d\n", numnodes);
 
-	memset(&nodes,0,sizeof(nodes)); 
+	memset(&nodes, 0, sizeof(nodes));
 	prevbase = 0;
-	for (i = 0; i < 8; i++) { 
-		unsigned long base,limit; 
+	for (i = 0; i < 8; i++) {
+		unsigned long base, limit;
 		u32 nodeid;
-		
+
 		base = read_pci_config(0, nb, 1, 0x40 + i*8);
 		limit = read_pci_config(0, nb, 1, 0x44 + i*8);
 
-		nodeid = limit & 7; 
+		nodeid = limit & 7;
 		nodeids[i] = nodeid;
-		if ((base & 3) == 0) { 
+		if ((base & 3) == 0) {
 			if (i < numnodes)
-				printk("Skipping disabled node %d\n", i); 
+				printk("Skipping disabled node %d\n", i);
 			continue;
-		} 
+		}
 		if (nodeid >= numnodes) {
 			printk("Ignoring excess node %d (%lx:%lx)\n", nodeid,
-			       base, limit); 
+			       base, limit);
 			continue;
-		} 
+		}
 
-		if (!limit) { 
-			printk(KERN_INFO "Skipping node entry %d (base %lx)\n", i,
-			       base);
+		if (!limit) {
+			printk(KERN_INFO "Skipping node entry %d (base %lx)\n",
+			       i, base);
 			continue;
 		}
 		if ((base >> 8) & 3 || (limit >> 8) & 3) {
-			printk(KERN_ERR "Node %d using interleaving mode %lx/%lx\n", 
-			       nodeid, (base>>8)&3, (limit>>8) & 3); 
-			return -1; 
-		}	
+			printk(KERN_ERR "Node %d using interleaving mode %lx/%lx\n",
+			       nodeid, (base>>8)&3, (limit>>8) & 3);
+			return -1;
+		}
 		if (node_isset(nodeid, node_possible_map)) {
-			printk(KERN_INFO "Node %d already present. Skipping\n", 
+			printk(KERN_INFO "Node %d already present. Skipping\n",
 			       nodeid);
 			continue;
 		}
 
-		limit >>= 16; 
-		limit <<= 24; 
+		limit >>= 16;
+		limit <<= 24;
 		limit |= (1<<24)-1;
 		limit++;
 
 		if (limit > end_pfn << PAGE_SHIFT)
 			limit = end_pfn << PAGE_SHIFT;
 		if (limit <= base)
-			continue; 
-			
+			continue;
+
 		base >>= 16;
-		base <<= 24; 
-
-		if (base < start) 
-			base = start; 
-		if (limit > end) 
-			limit = end; 
-		if (limit == base) { 
-			printk(KERN_ERR "Empty node %d\n", nodeid); 
-			continue; 
+		base <<= 24;
+
+		if (base < start)
+			base = start;
+		if (limit > end)
+			limit = end;
+		if (limit == base) {
+			printk(KERN_ERR "Empty node %d\n", nodeid);
+			continue;
 		}
-		if (limit < base) { 
+		if (limit < base) {
 			printk(KERN_ERR "Node %d bogus settings %lx-%lx.\n",
-			       nodeid, base, limit); 			       
+			       nodeid, base, limit);
 			continue;
-		} 
-		
+		}
+
 		/* Could sort here, but pun for now. Should not happen anyroads. */
-		if (prevbase > base) { 
+		if (prevbase > base) {
 			printk(KERN_ERR "Node map not sorted %lx,%lx\n",
-			       prevbase,base);
+			       prevbase, base);
 			return -1;
 		}
-			
-		printk(KERN_INFO "Node %d MemBase %016lx Limit %016lx\n", 
-		       nodeid, base, limit); 
-		
+
+		printk(KERN_INFO "Node %d MemBase %016lx Limit %016lx\n",
+		       nodeid, base, limit);
+
 		found++;
-		
-		nodes[nodeid].start = base; 
+
+		nodes[nodeid].start = base;
 		nodes[nodeid].end = limit;
 		e820_register_active_regions(nodeid,
 				nodes[nodeid].start >> PAGE_SHIFT,
@@ -155,31 +155,31 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
 		prevbase = base;
 
 		node_set(nodeid, node_possible_map);
-	} 
+	}
 
 	if (!found)
-		return -1; 
+		return -1;
 
 	memnode_shift = compute_hash_shift(nodes, 8);
-	if (memnode_shift < 0) { 
-		printk(KERN_ERR "No NUMA node hash function found. Contact maintainer\n"); 
-		return -1; 
-	} 
-	printk(KERN_INFO "Using node hash shift of %d\n", memnode_shift); 
+	if (memnode_shift < 0) {
+		printk(KERN_ERR "No NUMA node hash function found. Contact maintainer\n");
+		return -1;
+	}
+	printk(KERN_INFO "Using node hash shift of %d\n", memnode_shift);
 
 	/* use the coreid bits from early_identify_cpu */
 	bits = boot_cpu_data.x86_coreid_bits;
 	cores = (1<<bits);
 
 	for (i = 0; i < 8; i++) {
-		if (nodes[i].start != nodes[i].end) { 
+		if (nodes[i].start != nodes[i].end) {
 			nodeid = nodeids[i];
 			for (j = 0; j < cores; j++)
 				apicid_to_node[(nodeid << bits) + j] = i;
-			setup_node_bootmem(i, nodes[i].start, nodes[i].end); 
-		} 
+			setup_node_bootmem(i, nodes[i].start, nodes[i].end);
+		}
 	}
 
 	numa_init_array();
 	return 0;
-} 
+}
-- 
cgit v1.2.3-59-g8ed1b


From de4218634e3df6d73a3e6cdfdf3a17fa3bc7e013 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:32:37 +0100
Subject: x86: implement support to synchronize RDTSC through MFENCE on AMD
 CPUs

According to AMD RDTSC can be synchronized through MFENCE.
Implement the necessary CPUID bit for that.

Cc: andreas.herrmann3@amd.com
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/amd.c    | 3 +++
 arch/x86/kernel/setup_64.c   | 4 ++--
 include/asm-x86/cpufeature.h | 1 +
 3 files changed, 6 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 1ff88c7f45cf..aaa8101d3d80 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -301,6 +301,9 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 	/* K6s reports MCEs but don't actually have all the MSRs */
 	if (c->x86 < 6)
 		clear_bit(X86_FEATURE_MCE, c->x86_capability);
+
+	if (cpu_has_xmm)
+		set_bit(X86_FEATURE_MFENCE_RDTSC, c->x86_capability);
 }
 
 static unsigned int __cpuinit amd_size_cache(struct cpuinfo_x86 * c, unsigned int size)
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 02409100f456..2139aa6ac469 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -746,8 +746,8 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 	if (c->x86 == 0xf || c->x86 == 0x10 || c->x86 == 0x11)
 		set_cpu_cap(c, X86_FEATURE_K8);
 
-	/* RDTSC can be speculated around */
-	clear_cpu_cap(c, X86_FEATURE_SYNC_RDTSC);
+	/* MFENCE stops RDTSC speculation */
+	set_cpu_cap(c, X86_FEATURE_MFENCE_RDTSC);
 
 	/* Family 10 doesn't support C states in MWAIT so don't use it */
 	if (c->x86 == 0x10 && !force_mwait)
diff --git a/include/asm-x86/cpufeature.h b/include/asm-x86/cpufeature.h
index 75e2f78a7fda..7d53eea8b946 100644
--- a/include/asm-x86/cpufeature.h
+++ b/include/asm-x86/cpufeature.h
@@ -79,6 +79,7 @@
 /* 14 free */
 #define X86_FEATURE_SYNC_RDTSC	(3*32+15)  /* RDTSC synchronizes the CPU */
 #define X86_FEATURE_REP_GOOD	(3*32+16) /* rep microcode works well on this CPU */
+#define X86_FEATURE_MFENCE_RDTSC (3*32+17) /* Mfence synchronizes RDTSC */
 
 /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */
 #define X86_FEATURE_XMM3	(4*32+ 0) /* Streaming SIMD Extensions-3 */
-- 
cgit v1.2.3-59-g8ed1b


From 707fa8ed923b1b6a3d7af0d386b0b3abad28ed19 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:32:37 +0100
Subject: x86: Implement support to synchronize RDTSC with LFENCE on Intel CPUs

According to Intel RDTSC can be always synchronized with LFENCE
on all current CPUs. Implement the necessary CPUID bit for that.

It is unclear yet if that is true for all future CPUs too,
but if there's another way the kernel can be always updated.

Cc: asit.k.mallick@intel.com
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/intel.c  | 3 ++-
 arch/x86/kernel/setup_64.c   | 5 +----
 include/asm-x86/cpufeature.h | 1 +
 3 files changed, 4 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index e4b7e73e9024..0a4abdb61ae4 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -203,9 +203,10 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 	}
 #endif
 
+	if (cpu_has_xmm)
+		set_bit(X86_FEATURE_LFENCE_RDTSC, c->x86_capability);
 	if (c->x86 == 15) {
 		set_bit(X86_FEATURE_P4, c->x86_capability);
-		set_bit(X86_FEATURE_SYNC_RDTSC, c->x86_capability);
 	}
 	if (c->x86 == 6) 
 		set_bit(X86_FEATURE_P3, c->x86_capability);
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 2139aa6ac469..bc7758ea06af 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -888,10 +888,7 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 		set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
 	if (c->x86 == 6)
 		set_cpu_cap(c, X86_FEATURE_REP_GOOD);
-	if (c->x86 == 15)
-		set_cpu_cap(c, X86_FEATURE_SYNC_RDTSC);
-	else
-		clear_cpu_cap(c, X86_FEATURE_SYNC_RDTSC);
+	set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
 	c->x86_max_cores = intel_num_cpu_cores(c);
 
 	srat_detect_node();
diff --git a/include/asm-x86/cpufeature.h b/include/asm-x86/cpufeature.h
index 7d53eea8b946..c1a7e07859c8 100644
--- a/include/asm-x86/cpufeature.h
+++ b/include/asm-x86/cpufeature.h
@@ -80,6 +80,7 @@
 #define X86_FEATURE_SYNC_RDTSC	(3*32+15)  /* RDTSC synchronizes the CPU */
 #define X86_FEATURE_REP_GOOD	(3*32+16) /* rep microcode works well on this CPU */
 #define X86_FEATURE_MFENCE_RDTSC (3*32+17) /* Mfence synchronizes RDTSC */
+#define X86_FEATURE_LFENCE_RDTSC (3*32+18) /* Lfence synchronizes RDTSC */
 
 /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */
 #define X86_FEATURE_XMM3	(4*32+ 0) /* Streaming SIMD Extensions-3 */
-- 
cgit v1.2.3-59-g8ed1b


From 6d5f718a497375f853d90247f5f6963368e89803 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:32:38 +0100
Subject: x86: lfence fix

LFENCE is available on XMM2 or higher Intel CPUs - not XMM or higher...

this caused boot failures on XMM1 & !XMM1 capable CPUs.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/intel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 0a4abdb61ae4..5731de3e1bd1 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -203,7 +203,7 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 	}
 #endif
 
-	if (cpu_has_xmm)
+	if (cpu_has_xmm2)
 		set_bit(X86_FEATURE_LFENCE_RDTSC, c->x86_capability);
 	if (c->x86 == 15) {
 		set_bit(X86_FEATURE_P4, c->x86_capability);
-- 
cgit v1.2.3-59-g8ed1b


From cdc7957d1954908a39a6964e9c6f643916e76c4b Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:32:39 +0100
Subject: x86: move native_read_tsc() offline

move native_read_tsc() offline.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/rtc.c | 10 ++++++++++
 include/asm-x86/msr.h |  8 +-------
 2 files changed, 11 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index d040840ff1b6..c42cf1263882 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -6,6 +6,7 @@
 #include <linux/mc146818rtc.h>
 
 #include <asm/time.h>
+#include <asm/vsyscall.h>
 
 #ifdef CONFIG_X86_32
 # define CMOS_YEARS_OFFS 1900
@@ -194,3 +195,12 @@ int update_persistent_clock(struct timespec now)
 {
 	return set_rtc_mmss(now.tv_sec);
 }
+
+unsigned long long __vsyscall_fn native_read_tsc(void)
+{
+	DECLARE_ARGS(val, low, high);
+
+	asm volatile("rdtsc" : EAX_EDX_RET(val, low, high));
+	return EAX_EDX_VAL(val, low, high);
+}
+EXPORT_SYMBOL_GPL(native_read_tsc);
diff --git a/include/asm-x86/msr.h b/include/asm-x86/msr.h
index bca8c3950132..decfec4ab17c 100644
--- a/include/asm-x86/msr.h
+++ b/include/asm-x86/msr.h
@@ -91,13 +91,7 @@ static inline int native_write_msr_safe(unsigned int msr,
 	return err;
 }
 
-static inline unsigned long long native_read_tsc(void)
-{
-	DECLARE_ARGS(val, low, high);
-
-	asm volatile("rdtsc" : EAX_EDX_RET(val, low, high));
-	return EAX_EDX_VAL(val, low, high);
-}
+extern unsigned long long native_read_tsc(void);
 
 static inline unsigned long long native_read_pmc(int counter)
 {
-- 
cgit v1.2.3-59-g8ed1b


From e4026440130b84101f2da7f5a0c7a3b046173d3c Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:32:39 +0100
Subject: x86: map vsyscalls early enough

map vsyscalls early enough. This is important if a __vsyscall_fn
function is used by other kernel code too.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c    | 2 ++
 arch/x86/kernel/vsyscall_64.c | 3 +--
 include/asm-x86/vsyscall.h    | 2 ++
 3 files changed, 5 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index bc7758ea06af..8618178db842 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -45,6 +45,7 @@
 #include <asm/mtrr.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
+#include <asm/vsyscall.h>
 #include <asm/io.h>
 #include <asm/smp.h>
 #include <asm/msr.h>
@@ -453,6 +454,7 @@ void __init setup_arch(char **cmdline_p)
 #endif
 	reserve_crashkernel();
 	paging_init();
+	map_vsyscall();
 
 	early_quirks();
 
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index e5c1118a8098..3f8242774580 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -319,7 +319,7 @@ cpu_vsyscall_notifier(struct notifier_block *n, unsigned long action, void *arg)
 	return NOTIFY_DONE;
 }
 
-static void __init map_vsyscall(void)
+void __init map_vsyscall(void)
 {
 	extern char __vsyscall_0;
 	unsigned long physaddr_page0 = __pa_symbol(&__vsyscall_0);
@@ -335,7 +335,6 @@ static int __init vsyscall_init(void)
 	BUG_ON((unsigned long) &vtime != VSYSCALL_ADDR(__NR_vtime));
 	BUG_ON((VSYSCALL_ADDR(0) != __fix_to_virt(VSYSCALL_FIRST_PAGE)));
 	BUG_ON((unsigned long) &vgetcpu != VSYSCALL_ADDR(__NR_vgetcpu));
-	map_vsyscall();
 #ifdef CONFIG_SYSCTL
 	register_sysctl_table(kernel_root_table2);
 #endif
diff --git a/include/asm-x86/vsyscall.h b/include/asm-x86/vsyscall.h
index f01c49f5d108..17b3700949bf 100644
--- a/include/asm-x86/vsyscall.h
+++ b/include/asm-x86/vsyscall.h
@@ -36,6 +36,8 @@ extern volatile unsigned long __jiffies;
 extern int vgetcpu_mode;
 extern struct timezone sys_tz;
 
+extern void map_vsyscall(void);
+
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_X86_64_VSYSCALL_H_ */
-- 
cgit v1.2.3-59-g8ed1b


From f06e4ec1c15691b0cfd2397ae32214fa36c90d71 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:32:39 +0100
Subject: x86: read_tsc sync

make native_read_tsc() always non-speculative.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/rtc.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index c42cf1263882..276cb7073ab1 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -200,7 +200,10 @@ unsigned long long __vsyscall_fn native_read_tsc(void)
 {
 	DECLARE_ARGS(val, low, high);
 
+	rdtsc_barrier();
 	asm volatile("rdtsc" : EAX_EDX_RET(val, low, high));
+	rdtsc_barrier();
+
 	return EAX_EDX_VAL(val, low, high);
 }
 EXPORT_SYMBOL_GPL(native_read_tsc);
-- 
cgit v1.2.3-59-g8ed1b


From 6d63de8dbcda98511206897562ecfcdacf18f523 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:32:39 +0100
Subject: x86: remove get_cycles_sync

rdtsc is now speculation-safe, so no need for the sync variants of
the APIs.

[ mingo@elte.hu: removed the nsec_barrier() complication. ]

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/time_64.c  |  2 +-
 arch/x86/kernel/tsc_64.c   | 12 +++++-----
 arch/x86/kernel/tsc_sync.c |  4 ++--
 include/asm-x86/tsc.h      | 60 +++++++---------------------------------------
 4 files changed, 17 insertions(+), 61 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index 91d4d495904e..61b17f5ec867 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -83,7 +83,7 @@ unsigned long __init native_calculate_cpu_khz(void)
 	rdtscl(tsc_start);
 	do {
 		rdmsrl(MSR_K7_PERFCTR0 + i, pmc_now);
-		tsc_now = get_cycles_sync();
+		tsc_now = get_cycles();
 	} while ((tsc_now - tsc_start) < TICK_COUNT);
 
 	local_irq_restore(flags);
diff --git a/arch/x86/kernel/tsc_64.c b/arch/x86/kernel/tsc_64.c
index 3723401c4593..2cc55b726c22 100644
--- a/arch/x86/kernel/tsc_64.c
+++ b/arch/x86/kernel/tsc_64.c
@@ -181,12 +181,12 @@ static unsigned long __init tsc_read_refs(unsigned long *pm,
 	int i;
 
 	for (i = 0; i < MAX_RETRIES; i++) {
-		t1 = get_cycles_sync();
+		t1 = get_cycles();
 		if (hpet)
 			*hpet = hpet_readl(HPET_COUNTER) & 0xFFFFFFFF;
 		else
 			*pm = acpi_pm_read_early();
-		t2 = get_cycles_sync();
+		t2 = get_cycles();
 		if ((t2 - t1) < SMI_TRESHOLD)
 			return t2;
 	}
@@ -210,9 +210,9 @@ void __init tsc_calibrate(void)
 	outb(0xb0, 0x43);
 	outb((CLOCK_TICK_RATE / (1000 / 50)) & 0xff, 0x42);
 	outb((CLOCK_TICK_RATE / (1000 / 50)) >> 8, 0x42);
-	tr1 = get_cycles_sync();
+	tr1 = get_cycles();
 	while ((inb(0x61) & 0x20) == 0);
-	tr2 = get_cycles_sync();
+	tr2 = get_cycles();
 
 	tsc2 = tsc_read_refs(&pm2, hpet ? &hpet2 : NULL);
 
@@ -300,13 +300,13 @@ __setup("notsc", notsc_setup);
 /* clock source code: */
 static cycle_t read_tsc(void)
 {
-	cycle_t ret = (cycle_t)get_cycles_sync();
+	cycle_t ret = (cycle_t)get_cycles();
 	return ret;
 }
 
 static cycle_t __vsyscall_fn vread_tsc(void)
 {
-	cycle_t ret = (cycle_t)vget_cycles_sync();
+	cycle_t ret = (cycle_t)vget_cycles();
 	return ret;
 }
 
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index 05d8f25de6ae..ace340524c01 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -46,7 +46,7 @@ static __cpuinit void check_tsc_warp(void)
 	cycles_t start, now, prev, end;
 	int i;
 
-	start = get_cycles_sync();
+	start = get_cycles();
 	/*
 	 * The measurement runs for 20 msecs:
 	 */
@@ -61,7 +61,7 @@ static __cpuinit void check_tsc_warp(void)
 		 */
 		__raw_spin_lock(&sync_lock);
 		prev = last_tsc;
-		now = get_cycles_sync();
+		now = get_cycles();
 		last_tsc = now;
 		__raw_spin_unlock(&sync_lock);
 
diff --git a/include/asm-x86/tsc.h b/include/asm-x86/tsc.h
index 401303724130..f51a50da35aa 100644
--- a/include/asm-x86/tsc.h
+++ b/include/asm-x86/tsc.h
@@ -36,62 +36,18 @@ static inline cycles_t get_cycles(void)
 	return ret;
 }
 
-/* Like get_cycles, but make sure the CPU is synchronized. */
-static __always_inline cycles_t __get_cycles_sync(void)
+static inline cycles_t vget_cycles(void)
 {
-	unsigned long long ret;
-	unsigned eax, edx;
-
 	/*
-	 * Use RDTSCP if possible; it is guaranteed to be synchronous
-	 * and doesn't cause a VMEXIT on Hypervisors
+	 * We only do VDSOs on TSC capable CPUs, so this shouldnt
+	 * access boot_cpu_data (which is not VDSO-safe):
 	 */
-	alternative_io(ASM_NOP3, ".byte 0x0f,0x01,0xf9", X86_FEATURE_RDTSCP,
-		       ASM_OUTPUT2("=a" (eax), "=d" (edx)),
-		       "a" (0U), "d" (0U) : "ecx", "memory");
-	ret = (((unsigned long long)edx) << 32) | ((unsigned long long)eax);
-	if (ret)
-		return ret;
-
-	/*
-	 * Don't do an additional sync on CPUs where we know
-	 * RDTSC is already synchronous:
-	 */
-	alternative_io("cpuid", ASM_NOP2, X86_FEATURE_SYNC_RDTSC,
-			  "=a" (eax), "0" (1) : "ebx","ecx","edx","memory");
-
-	return 0;
-}
-
-static __always_inline cycles_t get_cycles_sync(void)
-{
-	unsigned long long ret;
-	ret = __get_cycles_sync();
-	if (!ret)
-		rdtscll(ret);
-	return ret;
-}
-
-#ifdef CONFIG_PARAVIRT
-/*
- * For paravirt guests, some functionalities are executed through function
- * pointers in the various pvops structures.
- * These function pointers exist inside the kernel and can not
- * be accessed by user space. To avoid this, we make a copy of the
- * get_cycles_sync (called in kernel) but force the use of native_read_tsc.
- * Ideally, the guest should set up it's own clock and vread
- */
-static __always_inline long long vget_cycles_sync(void)
-{
-	unsigned long long ret;
-	ret = __get_cycles_sync();
-	if (!ret)
-		ret = native_read_tsc();
-	return ret;
-}
-#else
-# define vget_cycles_sync() get_cycles_sync()
+#ifndef CONFIG_X86_TSC
+	if (!cpu_has_tsc)
+		return 0;
 #endif
+	return (cycles_t) native_read_tsc();
+}
 
 extern void tsc_init(void);
 extern void mark_tsc_unstable(char *reason);
-- 
cgit v1.2.3-59-g8ed1b


From 92767af0e3904b4d35ed547fb514ff6cb227e678 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:32:40 +0100
Subject: x86: fix sched_clock()

[ andi@firstfloor.org: build fix ]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/rtc.c | 13 ++++---------
 include/asm-x86/msr.h | 11 +++++++++++
 include/asm-x86/tsc.h |  2 +-
 3 files changed, 16 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 276cb7073ab1..eb9b1a198f5e 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -196,14 +196,9 @@ int update_persistent_clock(struct timespec now)
 	return set_rtc_mmss(now.tv_sec);
 }
 
-unsigned long long __vsyscall_fn native_read_tsc(void)
+unsigned long long native_read_tsc(void)
 {
-	DECLARE_ARGS(val, low, high);
-
-	rdtsc_barrier();
-	asm volatile("rdtsc" : EAX_EDX_RET(val, low, high));
-	rdtsc_barrier();
-
-	return EAX_EDX_VAL(val, low, high);
+	return __native_read_tsc();
 }
-EXPORT_SYMBOL_GPL(native_read_tsc);
+EXPORT_SYMBOL(native_read_tsc);
+
diff --git a/include/asm-x86/msr.h b/include/asm-x86/msr.h
index decfec4ab17c..204a8a30fecf 100644
--- a/include/asm-x86/msr.h
+++ b/include/asm-x86/msr.h
@@ -93,6 +93,17 @@ static inline int native_write_msr_safe(unsigned int msr,
 
 extern unsigned long long native_read_tsc(void);
 
+static __always_inline unsigned long long __native_read_tsc(void)
+{
+	DECLARE_ARGS(val, low, high);
+
+	rdtsc_barrier();
+	asm volatile("rdtsc" : EAX_EDX_RET(val, low, high));
+	rdtsc_barrier();
+
+	return EAX_EDX_VAL(val, low, high);
+}
+
 static inline unsigned long long native_read_pmc(int counter)
 {
 	DECLARE_ARGS(val, low, high);
diff --git a/include/asm-x86/tsc.h b/include/asm-x86/tsc.h
index f51a50da35aa..071e0ce5b664 100644
--- a/include/asm-x86/tsc.h
+++ b/include/asm-x86/tsc.h
@@ -46,7 +46,7 @@ static inline cycles_t vget_cycles(void)
 	if (!cpu_has_tsc)
 		return 0;
 #endif
-	return (cycles_t) native_read_tsc();
+	return (cycles_t) __native_read_tsc();
 }
 
 extern void tsc_init(void);
-- 
cgit v1.2.3-59-g8ed1b


From 2b16a2353814a513cdb5c5c739b76a19d7ea39ce Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:32:40 +0100
Subject: x86: move X86_FEATURE_CONSTANT_TSC into early cpu feature detection

Need this in the next patch in time_init and that happens early.

This includes a minor fix on i386 where early_intel_workarounds()
[which is now called early_init_intel] really executes early as
the comments say.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/amd.c    | 17 +++++++++++------
 arch/x86/kernel/cpu/common.c | 11 +++++++++--
 arch/x86/kernel/cpu/cpu.h    |  3 ++-
 arch/x86/kernel/cpu/intel.c  | 13 ++++++-------
 arch/x86/kernel/setup_64.c   | 39 +++++++++++++++++++++++++++++++--------
 5 files changed, 59 insertions(+), 24 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index aaa8101d3d80..cd2fe15ff4b5 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -63,6 +63,15 @@ static __cpuinit int amd_apic_timer_broken(void)
 
 int force_mwait __cpuinitdata;
 
+void __cpuinit early_init_amd(struct cpuinfo_x86 *c)
+{
+	if (cpuid_eax(0x80000000) >= 0x80000007) {
+		c->x86_power = cpuid_edx(0x80000007);
+		if (c->x86_power & (1<<8))
+			set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
+	}
+}
+
 static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 {
 	u32 l, h;
@@ -85,6 +94,8 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 	}
 #endif
 
+	early_init_amd(c);
+
 	/*
 	 *	FIXME: We should handle the K5 here. Set up the write
 	 *	range and also turn on MSR 83 bits 4 and 31 (write alloc,
@@ -257,12 +268,6 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 		c->x86_max_cores = (cpuid_ecx(0x80000008) & 0xff) + 1;
 	}
 
-	if (cpuid_eax(0x80000000) >= 0x80000007) {
-		c->x86_power = cpuid_edx(0x80000007);
-		if (c->x86_power & (1<<8))
-			set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
-	}
-
 #ifdef CONFIG_X86_HT
 	/*
 	 * On a AMD multi core setup the lower bits of the APIC id
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index e48832a6c2a9..dbb9142a8241 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -307,6 +307,15 @@ static void __init early_cpu_detect(void)
 	cpu_detect(c);
 
 	get_cpu_vendor(c, 1);
+
+	switch (c->x86_vendor) {
+	case X86_VENDOR_AMD:
+		early_init_amd(c);
+		break;
+	case X86_VENDOR_INTEL:
+		early_init_intel(c);
+		break;
+	}
 }
 
 static void __cpuinit generic_identify(struct cpuinfo_x86 * c)
@@ -364,8 +373,6 @@ static void __cpuinit generic_identify(struct cpuinfo_x86 * c)
 		init_scattered_cpuid_features(c);
 	}
 
-	early_intel_workaround(c);
-
 #ifdef CONFIG_X86_HT
 	c->phys_proc_id = (cpuid_ebx(1) >> 24) & 0xff;
 #endif
diff --git a/arch/x86/kernel/cpu/cpu.h b/arch/x86/kernel/cpu/cpu.h
index 2f6432cef6ff..ad6527a5beb1 100644
--- a/arch/x86/kernel/cpu/cpu.h
+++ b/arch/x86/kernel/cpu/cpu.h
@@ -24,5 +24,6 @@ extern struct cpu_dev * cpu_devs [X86_VENDOR_NUM];
 extern int get_model_name(struct cpuinfo_x86 *c);
 extern void display_cacheinfo(struct cpuinfo_x86 *c);
 
-extern void early_intel_workaround(struct cpuinfo_x86 *c);
+extern void early_init_intel(struct cpuinfo_x86 *c);
+extern void early_init_amd(struct cpuinfo_x86 *c);
 
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 5731de3e1bd1..f1136115279a 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -29,13 +29,14 @@
 struct movsl_mask movsl_mask __read_mostly;
 #endif
 
-void __cpuinit early_intel_workaround(struct cpuinfo_x86 *c)
+void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
 {
-	if (c->x86_vendor != X86_VENDOR_INTEL)
-		return;
 	/* Netburst reports 64 bytes clflush size, but does IO in 128 bytes */
 	if (c->x86 == 15 && c->x86_cache_alignment == 64)
 		c->x86_cache_alignment = 128;
+	if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
+		(c->x86 == 0x6 && c->x86_model >= 0x0e))
+		set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
 }
 
 /*
@@ -115,6 +116,8 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 	unsigned int l2 = 0;
 	char *p = NULL;
 
+	early_init_intel(c);
+
 #ifdef CONFIG_X86_F00F_BUG
 	/*
 	 * All current models of Pentium and Pentium with MMX technology CPUs
@@ -210,10 +213,6 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 	}
 	if (c->x86 == 6) 
 		set_bit(X86_FEATURE_P3, c->x86_capability);
-	if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
-		(c->x86 == 0x6 && c->x86_model >= 0x0e))
-		set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
-
 	if (cpu_has_ds) {
 		unsigned int l1;
 		rdmsr(MSR_IA32_MISC_ENABLE, l1, l2);
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 8618178db842..3cae326093cb 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -544,9 +544,6 @@ static void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
 		printk(KERN_INFO "CPU: L2 Cache: %dK (%d bytes/line)\n",
 		c->x86_cache_size, ecx & 0xFF);
 	}
-
-	if (n >= 0x80000007)
-		cpuid(0x80000007, &dummy, &dummy, &dummy, &c->x86_power);
 	if (n >= 0x80000008) {
 		cpuid(0x80000008, &eax, &dummy, &dummy, &dummy);
 		c->x86_virt_bits = (eax >> 8) & 0xff;
@@ -624,7 +621,7 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
 #endif
 }
 
-static void __cpuinit early_init_amd(struct cpuinfo_x86 *c)
+static void __cpuinit early_init_amd_mc(struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
 	unsigned bits, ecx;
@@ -682,6 +679,15 @@ static __cpuinit int amd_apic_timer_broken(void)
 	return 0;
 }
 
+static void __cpuinit early_init_amd(struct cpuinfo_x86 *c)
+{
+	early_init_amd_mc(c);
+
+ 	/* c->x86_power is 8000_0007 edx. Bit 8 is constant TSC */
+	if (c->x86_power & (1<<8))
+		set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
+}
+
 static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 {
 	unsigned level;
@@ -731,10 +737,6 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 	}
 	display_cacheinfo(c);
 
-	/* c->x86_power is 8000_0007 edx. Bit 8 is constant TSC */
-	if (c->x86_power & (1<<8))
-		set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
-
 	/* Multi core CPU? */
 	if (c->extended_cpuid_level >= 0x80000008)
 		amd_detect_cmp(c);
@@ -845,6 +847,13 @@ static void srat_detect_node(void)
 #endif
 }
 
+static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
+{
+	if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
+	    (c->x86 == 0x6 && c->x86_model >= 0x0e))
+		set_bit(X86_FEATURE_CONSTANT_TSC, &c->x86_capability);
+}
+
 static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 {
 	/* Cache sizes */
@@ -1056,6 +1065,20 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 #ifdef CONFIG_NUMA
 	numa_add_cpu(smp_processor_id());
 #endif
+
+	c->extended_cpuid_level = cpuid_eax(0x80000000);
+
+	if (c->extended_cpuid_level >= 0x80000007)
+		c->x86_power = cpuid_edx(0x80000007);
+
+	switch (c->x86_vendor) {
+	case X86_VENDOR_AMD:
+		early_init_amd(c);
+		break;
+	case X86_VENDOR_INTEL:
+		early_init_intel(c);
+		break;
+	}
 }
 
 void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
-- 
cgit v1.2.3-59-g8ed1b


From 51fc97b93545e71cec578d6771bceeb92bc2d50b Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:32:40 +0100
Subject: x86: allow TSC clock source on AMD Fam10h and some cleanup

After a lot of discussions with AMD it turns out that TSC
on Fam10h CPUs is synchronized when the CONSTANT_TSC cpuid bit is set.
Or rather that if there are ever systems where that is not
true it would be their BIOS' task to disable the bit.

So finally use TSC gettimeofday on Fam10h by default.

Or rather it is always used now on CPUs where the AMD
specific CONSTANT_TSC bit is set.

This gives a nice speed bost for gettimeofday() on these systems
which tends to be by far the most common v/syscall.

On a Fam10h system here TSC gtod uses about 20% of the CPU time of
acpi_pm based gtod(). This was measured on 32bit, on 64bit
it is even better because TSC gtod() can use a vsyscall
and stay in ring 3, which acpi_pm doesn't.

The Intel check simply checks for CONSTANT_TSC too without hardcoding
Intel vendor. This is equivalent on 64bit because all 64bit capable Intel
CPUs will have CONSTANT_TSC set.

On Intel there is no CPU supplied CONSTANT_TSC bit currently,
but we synthesize one based on hardcoded knowledge which steppings
have p-state invariant TSC.

So the new logic is now: On CPUs which have the AMD specific
CONSTANT_TSC bit set or on Intel CPUs which are new enough
to be known to have p-state invariant TSC always use
TSC based gettimeofday()

Cc: lenb@kernel.org

Signed-off-by: Andi Kleen <ak@suse.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/tsc_32.c | 5 +++++
 arch/x86/kernel/tsc_64.c | 5 ++---
 2 files changed, 7 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/tsc_32.c b/arch/x86/kernel/tsc_32.c
index 00bb4c1c0593..2a7b95bd8509 100644
--- a/arch/x86/kernel/tsc_32.c
+++ b/arch/x86/kernel/tsc_32.c
@@ -354,6 +354,11 @@ __cpuinit int unsynchronized_tsc(void)
 {
 	if (!cpu_has_tsc || tsc_unstable)
 		return 1;
+
+	/* Anything with constant TSC should be synchronized */
+	if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
+		return 0;
+
 	/*
 	 * Intel systems are normally all synchronized.
 	 * Exceptions must mark TSC as unstable:
diff --git a/arch/x86/kernel/tsc_64.c b/arch/x86/kernel/tsc_64.c
index 2cc55b726c22..322b38c68198 100644
--- a/arch/x86/kernel/tsc_64.c
+++ b/arch/x86/kernel/tsc_64.c
@@ -272,9 +272,8 @@ __cpuinit int unsynchronized_tsc(void)
 	if (apic_is_clustered_box())
 		return 1;
 #endif
-	/* Most intel systems have synchronized TSCs except for
-	   multi node systems */
-	if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) {
+
+	if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC)) {
 #ifdef CONFIG_ACPI
 		/* But TSC doesn't tick in C3 so don't use it there */
 		if (acpi_gbl_FADT.header.length > 0 &&
-- 
cgit v1.2.3-59-g8ed1b


From 32c7553f824d0d76771404f0e11d6059f82e8de7 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:32:41 +0100
Subject: x86: remove explicit C3 TSC check on 64bit

Trust the ACPI code to disable TSC instead when C3 is used.

AMD Fam10h does not disable TSC in any C states so the
check was incorrect there anyways after the change
to handle this like Intel on AMD too.

This allows to use the TSC when C3 is disabled in software
(acpi.max_c_state=2), but the BIOS supports it anyways.

Match i386 behaviour.

Cc: lenb@kernel.org

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/tsc_64.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/tsc_64.c b/arch/x86/kernel/tsc_64.c
index 322b38c68198..c62f3b6eacc0 100644
--- a/arch/x86/kernel/tsc_64.c
+++ b/arch/x86/kernel/tsc_64.c
@@ -273,15 +273,8 @@ __cpuinit int unsynchronized_tsc(void)
 		return 1;
 #endif
 
-	if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC)) {
-#ifdef CONFIG_ACPI
-		/* But TSC doesn't tick in C3 so don't use it there */
-		if (acpi_gbl_FADT.header.length > 0 &&
-		    acpi_gbl_FADT.C3latency < 1000)
-			return 1;
-#endif
+	if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
 		return 0;
-	}
 
 	/* Assume multi socket systems are not synchronized */
 	return num_present_cpus() > 1;
-- 
cgit v1.2.3-59-g8ed1b


From 9566e91d494ed0668edf88f852de7f251fe8fe9a Mon Sep 17 00:00:00 2001
From: Andreas Herrmann <andreas.herrmann3@amd.com>
Date: Wed, 30 Jan 2008 13:32:41 +0100
Subject: x86: fix detection of CONSTANT_TSC bit for AMD CPUs

Commits
 - c52f61fcbdb2aa84f0e4d831ef07f375e6b99b2c
  (x86: allow TSC clock source on AMD Fam10h and some cleanup)
 - e30436f05d456efaff77611e4494f607b14c2782
  (x86: move X86_FEATURE_CONSTANT_TSC into early cpu feature detection)

are supposed to fix the detection of contant TSC for AMD CPUs.
Unfortunately on x86_64 it does still not work with current x86/mm.
For a Phenom I still get:

  ...
  TSC calibrated against PM_TIMER
  Marking TSC unstable due to TSCs unsynchronized
  time.c: Detected 2288.366 MHz processor.
  ...

We have to set c->x86_power in early_identify_cpu to properly detect
the CONSTANT_TSC bit in early_init_amd.

Attached patch fixes this issue. Following the relevant boot
messages when the fix is used:

  ...
  TSC calibrated against PM_TIMER
  time.c: Detected 2288.279 MHz processor.
  ...
  Initializing CPU#1
  ...
  checking TSC synchronization [CPU#0 -> CPU#1]: passed.
  ...
  Initializing CPU#2
  ...
  checking TSC synchronization [CPU#0 -> CPU#2]: passed.
  ...
  Booting processor 3/4 APIC 0x3
  ...
  checking TSC synchronization [CPU#0 -> CPU#3]: passed.
  Brought up 4 CPUs
  ...

Patch is against x86/mm (v2.6.24-rc8-672-ga9f7faa).
Please apply.

Set c->x86_power in early_identify_cpu. This ensures that
X86_FEATURE_CONSTANT_TSC can properly be set in early_init_amd.

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 3cae326093cb..1caf7458dc48 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -996,6 +996,10 @@ static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
 			c->x86_capability[2] = cpuid_edx(0x80860001);
 	}
 
+	c->extended_cpuid_level = cpuid_eax(0x80000000);
+	if (c->extended_cpuid_level >= 0x80000007)
+		c->x86_power = cpuid_edx(0x80000007);
+
 	switch (c->x86_vendor) {
 	case X86_VENDOR_AMD:
 		early_init_amd(c);
@@ -1066,11 +1070,6 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 	numa_add_cpu(smp_processor_id());
 #endif
 
-	c->extended_cpuid_level = cpuid_eax(0x80000000);
-
-	if (c->extended_cpuid_level >= 0x80000007)
-		c->x86_power = cpuid_edx(0x80000007);
-
 	switch (c->x86_vendor) {
 	case X86_VENDOR_AMD:
 		early_init_amd(c);
-- 
cgit v1.2.3-59-g8ed1b


From b899c5ed2ef3af3429abd8046197255f179ea496 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:32:44 +0100
Subject: x86/efi: fix improper use of lvalue

# HG changeset patch
# User Jeremy Fitzhardinge <jeremy@xensource.com>
# Date 1199391030 28800
# Node ID 5d35c92fdf0e2c52edbb6fc4ccd06c7f65f25009
# Parent  22f6a5902285b58bfc1fbbd9e183498c9017bd78
x86/efi: fix improper use of lvalue

pgd_val is no longer valid as an lvalue, so don't try to assign to it.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/efi_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c
index 269de2e049a3..1f8bbd9644d7 100644
--- a/arch/x86/kernel/efi_64.c
+++ b/arch/x86/kernel/efi_64.c
@@ -85,7 +85,7 @@ void __init efi_call_phys_prelog(void)
 	local_irq_save(efi_flags);
 	early_runtime_code_mapping_set_exec(1);
 	vaddress = (unsigned long)__va(0x0UL);
-	pgd_val(save_pgd) = pgd_val(*pgd_offset_k(0x0UL));
+	save_pgd = *pgd_offset_k(0x0UL);
 	set_pgd(pgd_offset_k(0x0UL), *pgd_offset_k(vaddress));
 	__flush_tlb_all();
 }
-- 
cgit v1.2.3-59-g8ed1b


From 3898534d85e2da8cedab1ceb6ab9328c61f2c1ce Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:32:49 +0100
Subject: x86: remove CPU capabitilites printks on 32-bit

I don't know of any case where they have been useful and they look ugly.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/common.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index dbb9142a8241..ed05c7a0ca9b 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -432,20 +432,9 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 
 	generic_identify(c);
 
-	printk(KERN_DEBUG "CPU: After generic identify, caps:");
-	for (i = 0; i < NCAPINTS; i++)
-		printk(" %08x", c->x86_capability[i]);
-	printk("\n");
-
-	if (this_cpu->c_identify) {
+	if (this_cpu->c_identify)
 		this_cpu->c_identify(c);
 
-		printk(KERN_DEBUG "CPU: After vendor identify, caps:");
-		for (i = 0; i < NCAPINTS; i++)
-			printk(" %08x", c->x86_capability[i]);
-		printk("\n");
-	}
-
 	/*
 	 * Vendor-specific initialization.  In this section we
 	 * canonicalize the feature flags, meaning if there are
@@ -496,13 +485,6 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 				c->x86, c->x86_model);
 	}
 
-	/* Now the feature flags better reflect actual CPU features! */
-
-	printk(KERN_DEBUG "CPU: After all inits, caps:");
-	for (i = 0; i < NCAPINTS; i++)
-		printk(" %08x", c->x86_capability[i]);
-	printk("\n");
-
 	/*
 	 * On SMP, boot_cpu_data holds the common feature set between
 	 * all CPUs; so make sure that we indicate which features are
-- 
cgit v1.2.3-59-g8ed1b


From 37f30e21d6be046e948fce1dfa4a968cf5abcf89 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:32:49 +0100
Subject: x86: document fdimage/isoimage completely in make help

Add missing targets and missing options in x86 make help

[ mingo@elte.hu: more whitespace cleanups ]

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Makefile | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index bfe061de8ed6..e2ffccfd6af6 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -234,14 +234,18 @@ archclean:
 	$(Q)$(MAKE) $(clean)=$(boot)
 
 define archhelp
-  echo  '* bzImage	- Compressed kernel image (arch/x86/boot/bzImage)'
-  echo  '  install	- Install kernel using'
-  echo  '		   (your) ~/bin/installkernel or'
-  echo  '		   (distribution) /sbin/installkernel or'
-  echo  '		   install to $$(INSTALL_PATH) and run lilo'
-  echo  '  bzdisk       - Create a boot floppy in /dev/fd0'
-  echo  '  fdimage      - Create a boot floppy image'
-  echo  '  isoimage     - Create a boot CD-ROM image'
+  echo  '* bzImage      - Compressed kernel image (arch/x86/boot/bzImage)'
+  echo  '  install      - Install kernel using'
+  echo  '                  (your) ~/bin/installkernel or'
+  echo  '                  (distribution) /sbin/installkernel or'
+  echo  '                  install to $$(INSTALL_PATH) and run lilo'
+  echo  '  fdimage      - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
+  echo  '  fdimage144   - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
+  echo  '  fdimage288   - Create 2.8MB boot floppy image (arch/x86/boot/fdimage)'
+  echo  '  isoimage     - Create a boot CD-ROM image (arch/x86/boot/image.iso)'
+  echo  '                  bzdisk/fdimage*/isoimage also accept:'
+  echo  '                  FDARGS="..."  arguments for the booted kernel'
+  echo  '                  FDINITRD=file initrd for the booted kernel'
 endef
 
 CLEAN_FILES += arch/x86/boot/fdimage \
-- 
cgit v1.2.3-59-g8ed1b


From a6b68076fd5d7de04e6847ed9d7d212e7dd6beb5 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:32:49 +0100
Subject: x86: compile apm and voyager module only when selected in Kconfig

Previously the complete files were #ifdef'ed, but now handle that in the
Makefile.

May save a minor bit of compilation time.

[ Stephen Rothwell <sfr@canb.auug.org.au>: build dependency fix ]
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig        | 5 +++++
 arch/x86/boot/Makefile  | 6 ++++--
 arch/x86/boot/apm.c     | 3 ---
 arch/x86/boot/voyager.c | 4 ----
 4 files changed, 9 insertions(+), 9 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5271665a22e0..1de28e850aa4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1199,6 +1199,11 @@ source "kernel/power/Kconfig"
 
 source "drivers/acpi/Kconfig"
 
+config X86_APM_BOOT
+	bool
+	default y
+	depends on APM || APM_MODULE
+
 menuconfig APM
 	tristate "APM (Advanced Power Management) BIOS support"
 	depends on X86_32 && PM_SLEEP && !X86_VISWS
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index dcad6507f196..349b81a39c40 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -28,9 +28,11 @@ SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
 targets		:= vmlinux.bin setup.bin setup.elf zImage bzImage
 subdir- 	:= compressed
 
-setup-y		+= a20.o apm.o cmdline.o copy.o cpu.o cpucheck.o edd.o
+setup-y		+= a20.o cmdline.o copy.o cpu.o cpucheck.o edd.o
 setup-y		+= header.o main.o mca.o memory.o pm.o pmjump.o
-setup-y		+= printf.o string.o tty.o video.o version.o voyager.o
+setup-y		+= printf.o string.o tty.o video.o version.o
+setup-$(CONFIG_X86_APM_BOOT) += apm.o
+setup-$(CONFIG_X86_VOYAGER) += voyager.o
 
 # The link order of the video-*.o modules can matter.  In particular,
 # video-vga.o *must* be listed first, followed by video-vesa.o.
diff --git a/arch/x86/boot/apm.c b/arch/x86/boot/apm.c
index eab50c55a3a5..c117c7fb859c 100644
--- a/arch/x86/boot/apm.c
+++ b/arch/x86/boot/apm.c
@@ -19,8 +19,6 @@
 
 #include "boot.h"
 
-#if defined(CONFIG_APM) || defined(CONFIG_APM_MODULE)
-
 int query_apm_bios(void)
 {
 	u16 ax, bx, cx, dx, di;
@@ -95,4 +93,3 @@ int query_apm_bios(void)
 	return 0;
 }
 
-#endif
diff --git a/arch/x86/boot/voyager.c b/arch/x86/boot/voyager.c
index 61c8fe0453be..6499e3239b41 100644
--- a/arch/x86/boot/voyager.c
+++ b/arch/x86/boot/voyager.c
@@ -16,8 +16,6 @@
 
 #include "boot.h"
 
-#ifdef CONFIG_X86_VOYAGER
-
 int query_voyager(void)
 {
 	u8 err;
@@ -42,5 +40,3 @@ int query_voyager(void)
 	copy_from_fs(data_ptr, di, 7);	/* Table is 7 bytes apparently */
 	return 0;
 }
-
-#endif /* CONFIG_X86_VOYAGER */
-- 
cgit v1.2.3-59-g8ed1b


From a9a832902fccc958caa339677dbff766e51b02c3 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:32:49 +0100
Subject: x86: Set CFQ as default in 32-bit defconfig

Someone complained that the 32-bit defconfig contains AS as default IO
scheduler. Change that to CFQ.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/configs/i386_defconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index 54ee1764fdae..77562e7cdab6 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -99,9 +99,9 @@ CONFIG_IOSCHED_NOOP=y
 CONFIG_IOSCHED_AS=y
 CONFIG_IOSCHED_DEADLINE=y
 CONFIG_IOSCHED_CFQ=y
-CONFIG_DEFAULT_AS=y
+# CONFIG_DEFAULT_AS is not set
 # CONFIG_DEFAULT_DEADLINE is not set
-# CONFIG_DEFAULT_CFQ is not set
+CONFIG_DEFAULT_CFQ=y
 # CONFIG_DEFAULT_NOOP is not set
 CONFIG_DEFAULT_IOSCHED="anticipatory"
 
-- 
cgit v1.2.3-59-g8ed1b


From e3cfac84cfbc8c9f17817573befc0f4913b1a4dc Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:32:49 +0100
Subject: x86: mark memory_setup __init

Otherwise

WARNING: vmlinux.o(.text+0x64a9): Section mismatch: reference to .init.text:machine_specific_memory_setup (between 'memory_setup' and 'show_cpuinfo')

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 1caf7458dc48..a7124bfb8578 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -279,7 +279,7 @@ static void discover_ebda(void)
 }
 
 /* Overridden in paravirt.c if CONFIG_PARAVIRT */
-void __attribute__((weak)) memory_setup(void)
+void __attribute__((weak)) __init memory_setup(void)
 {
        machine_specific_memory_setup();
 }
-- 
cgit v1.2.3-59-g8ed1b


From 4c4915627f94a81a834a7a65dee83acdfb45788c Mon Sep 17 00:00:00 2001
From: Eric Dumazet <dada1@cosmosbay.com>
Date: Wed, 30 Jan 2008 13:32:50 +0100
Subject: x86: make arch/x86/kernel/acpi/wakeup_32.S use a separate

While examining vmlinux namelist on i386 (nm -v vmlinux) I noticed :

c01021d0 t es7000_rename_gsi
c010221a T es7000_start_cpu
<Big Hole>
c0103000 T thread_saved_pc

and

c0113218 T acpi_restore_state_mem
c0113219 T acpi_save_state_mem
<Big Hole>
c0114000 t wakeup_code

This is because arch/x86/kernel/acpi/wakeup_32.S forces a .text alignment
of 4096 bytes. (I have no idea if it is really needed, since
arch/x86/kernel/acpi/wakeup_64.S uses a 16 bytes alignment *only*)

So arch/x86/kernel/built-in.o also has this alignment

arch/x86/kernel/built-in.o:     file format elf32-i386

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         00018c94  00000000  00000000  00001000  2**12
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE

But as arch/x86/kernel/acpi/wakeup_32.o is not the first object linked
into arch/x86/kernel/built-in.o, linker had to build several holes to meet
alignement requirements, because of .o nestings in the kbuild process.

This can be solved by using a special section, .text.page_aligned, so that
no holes are needed.

# size vmlinux.before vmlinux.after
   text    data     bss     dec     hex filename
4619942  422838  458752 5501532  53f25c vmlinux.before
4610534  422838  458752 5492124  53cd9c vmlinux.after

This saves 9408 bytes

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/acpi/wakeup_32.S | 2 +-
 arch/x86/kernel/vmlinux_32.lds.S | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
index 1e931aaf2ef6..f53e3277f8e5 100644
--- a/arch/x86/kernel/acpi/wakeup_32.S
+++ b/arch/x86/kernel/acpi/wakeup_32.S
@@ -1,4 +1,4 @@
-.text
+	.section .text.page_aligned
 #include <linux/linkage.h>
 #include <asm/segment.h>
 #include <asm/page.h>
diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S
index ec072588ff01..f1148ac8abe3 100644
--- a/arch/x86/kernel/vmlinux_32.lds.S
+++ b/arch/x86/kernel/vmlinux_32.lds.S
@@ -38,6 +38,8 @@ SECTIONS
 
   /* read-only */
   .text : AT(ADDR(.text) - LOAD_OFFSET) {
+	. = ALIGN(4096); /* not really needed, already page aligned */
+	*(.text.page_aligned)
 	TEXT_TEXT
 	SCHED_TEXT
 	LOCK_TEXT
-- 
cgit v1.2.3-59-g8ed1b


From f315decbd05fefbca09bd492ae54eaa334ba826b Mon Sep 17 00:00:00 2001
From: Abhishek Sagar <sagar.abhishek@gmail.com>
Date: Wed, 30 Jan 2008 13:32:50 +0100
Subject: x86: kprobes change kprobe_handler flow

Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Signed-off-by: Quentin Barnes <qbarnes@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes.c | 153 ++++++++++++++++++++++++++--------------------
 1 file changed, 86 insertions(+), 67 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 711fec8f6379..53ba6a5b6550 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -442,6 +442,34 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 	/* Replace the return addr with trampoline addr */
 	*sara = (unsigned long) &kretprobe_trampoline;
 }
+
+static void __kprobes recursive_singlestep(struct kprobe *p,
+					   struct pt_regs *regs,
+					   struct kprobe_ctlblk *kcb)
+{
+	save_previous_kprobe(kcb);
+	set_current_kprobe(p, regs, kcb);
+	kprobes_inc_nmissed_count(p);
+	prepare_singlestep(p, regs);
+	kcb->kprobe_status = KPROBE_REENTER;
+}
+
+static void __kprobes setup_singlestep(struct kprobe *p, struct pt_regs *regs,
+				       struct kprobe_ctlblk *kcb)
+{
+#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PM)
+	if (p->ainsn.boostable == 1 && !p->post_handler) {
+		/* Boost up -- we can execute copied instructions directly */
+		reset_current_kprobe();
+		regs->ip = (unsigned long)p->ainsn.insn;
+		preempt_enable_no_resched();
+		return;
+	}
+#endif
+	prepare_singlestep(p, regs);
+	kcb->kprobe_status = KPROBE_HIT_SS;
+}
+
 /*
  * We have reentered the kprobe_handler(), since another probe was hit while
  * within the handler. We save the original kprobes variables and just single
@@ -450,13 +478,9 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 static int __kprobes reenter_kprobe(struct kprobe *p, struct pt_regs *regs,
 				    struct kprobe_ctlblk *kcb)
 {
-	if (kcb->kprobe_status == KPROBE_HIT_SS &&
-	    *p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
-		regs->flags &= ~X86_EFLAGS_TF;
-		regs->flags |= kcb->kprobe_saved_flags;
-		return 0;
+	switch (kcb->kprobe_status) {
+	case KPROBE_HIT_SSDONE:
 #ifdef CONFIG_X86_64
-	} else if (kcb->kprobe_status == KPROBE_HIT_SSDONE) {
 		/* TODO: Provide re-entrancy from post_kprobes_handler() and
 		 * avoid exception stack corruption while single-stepping on
 		 * the instruction of the new probe.
@@ -464,14 +488,26 @@ static int __kprobes reenter_kprobe(struct kprobe *p, struct pt_regs *regs,
 		arch_disarm_kprobe(p);
 		regs->ip = (unsigned long)p->addr;
 		reset_current_kprobe();
-		return 1;
+		preempt_enable_no_resched();
+		break;
 #endif
+	case KPROBE_HIT_ACTIVE:
+		recursive_singlestep(p, regs, kcb);
+		break;
+	case KPROBE_HIT_SS:
+		if (*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
+			regs->flags &= ~TF_MASK;
+			regs->flags |= kcb->kprobe_saved_flags;
+			return 0;
+		} else {
+			recursive_singlestep(p, regs, kcb);
+		}
+		break;
+	default:
+		/* impossible cases */
+		WARN_ON(1);
 	}
-	save_previous_kprobe(kcb);
-	set_current_kprobe(p, regs, kcb);
-	kprobes_inc_nmissed_count(p);
-	prepare_singlestep(p, regs);
-	kcb->kprobe_status = KPROBE_REENTER;
+
 	return 1;
 }
 
@@ -481,83 +517,66 @@ static int __kprobes reenter_kprobe(struct kprobe *p, struct pt_regs *regs,
  */
 static int __kprobes kprobe_handler(struct pt_regs *regs)
 {
-	struct kprobe *p;
-	int ret = 0;
 	kprobe_opcode_t *addr;
+	struct kprobe *p;
 	struct kprobe_ctlblk *kcb;
 
 	addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
+	if (*addr != BREAKPOINT_INSTRUCTION) {
+		/*
+		 * The breakpoint instruction was removed right
+		 * after we hit it.  Another cpu has removed
+		 * either a probepoint or a debugger breakpoint
+		 * at this address.  In either case, no further
+		 * handling of this interrupt is appropriate.
+		 * Back up over the (now missing) int3 and run
+		 * the original instruction.
+		 */
+		regs->ip = (unsigned long)addr;
+		return 1;
+	}
 
 	/*
 	 * We don't want to be preempted for the entire
-	 * duration of kprobe processing
+	 * duration of kprobe processing. We conditionally
+	 * re-enable preemption at the end of this function,
+	 * and also in reenter_kprobe() and setup_singlestep().
 	 */
 	preempt_disable();
-	kcb = get_kprobe_ctlblk();
 
+	kcb = get_kprobe_ctlblk();
 	p = get_kprobe(addr);
+
 	if (p) {
-		/* Check we're not actually recursing */
 		if (kprobe_running()) {
-			ret = reenter_kprobe(p, regs, kcb);
-			if (kcb->kprobe_status == KPROBE_REENTER)
-			{
-				ret = 1;
-				goto out;
-			}
-			goto preempt_out;
+			if (reenter_kprobe(p, regs, kcb))
+				return 1;
 		} else {
 			set_current_kprobe(p, regs, kcb);
 			kcb->kprobe_status = KPROBE_HIT_ACTIVE;
-			if (p->pre_handler && p->pre_handler(p, regs))
-			{
-				/* handler set things up, skip ss setup */
-				ret = 1;
-				goto out;
-			}
-		}
-	} else {
-		if (*addr != BREAKPOINT_INSTRUCTION) {
+
 			/*
-			 * The breakpoint instruction was removed right
-			 * after we hit it.  Another cpu has removed
-			 * either a probepoint or a debugger breakpoint
-			 * at this address.  In either case, no further
-			 * handling of this interrupt is appropriate.
-			 * Back up over the (now missing) int3 and run
-			 * the original instruction.
+			 * If we have no pre-handler or it returned 0, we
+			 * continue with normal processing.  If we have a
+			 * pre-handler and it returned non-zero, it prepped
+			 * for calling the break_handler below on re-entry
+			 * for jprobe processing, so get out doing nothing
+			 * more here.
 			 */
-			regs->ip = (unsigned long)addr;
-			ret = 1;
-			goto preempt_out;
+			if (!p->pre_handler || !p->pre_handler(p, regs))
+				setup_singlestep(p, regs, kcb);
+			return 1;
 		}
-		if (kprobe_running()) {
-			p = __get_cpu_var(current_kprobe);
-			if (p->break_handler && p->break_handler(p, regs))
-				goto ss_probe;
+	} else if (kprobe_running()) {
+		p = __get_cpu_var(current_kprobe);
+		if (p->break_handler && p->break_handler(p, regs)) {
+			setup_singlestep(p, regs, kcb);
+			return 1;
 		}
-		/* Not one of ours: let kernel handle it */
-		goto preempt_out;
-	}
+	} /* else: not a kprobe fault; let the kernel handle it */
 
-ss_probe:
-	ret = 1;
-#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PM)
-	if (p->ainsn.boostable == 1 && !p->post_handler) {
-		/* Boost up -- we can execute copied instructions directly */
-		reset_current_kprobe();
-		regs->ip = (unsigned long)p->ainsn.insn;
-		goto preempt_out;
-	}
-#endif
-	prepare_singlestep(p, regs);
-	kcb->kprobe_status = KPROBE_HIT_SS;
-	goto out;
-
-preempt_out:
 	preempt_enable_no_resched();
-out:
-	return ret;
+	return 0;
 }
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From 4d022e35fd7e07c522c7863fee6f07e53cf3fc14 Mon Sep 17 00:00:00 2001
From: Miguel Boton <mboton.lkml@gmail.com>
Date: Wed, 30 Jan 2008 13:32:51 +0100
Subject: x86: reboot_{32|64}.c unification

reboot_{32|64}.c unification patch.

This patch unifies the code from the reboot_32.c and reboot_64.c files.

It has been tested in computers with X86_32 and X86_64 kernels and it
looks like all reboot modes work fine (EFI restart system hasn't been
tested yet).

Probably I made some mistakes (like I usually do) so I hope
we can identify and fix them soon.

Signed-off-by: Miguel Boton <mboton@gmail.com>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile            |   4 +-
 arch/x86/kernel/reboot.c            | 449 ++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/reboot_32.c         | 413 ---------------------------------
 arch/x86/kernel/reboot_64.c         | 191 ---------------
 include/asm-x86/emergency-restart.h |   3 +
 5 files changed, 454 insertions(+), 606 deletions(-)
 create mode 100644 arch/x86/kernel/reboot.c
 delete mode 100644 arch/x86/kernel/reboot_32.c
 delete mode 100644 arch/x86/kernel/reboot_64.c

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 0903bbf0ca4d..b40bed4baa77 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -30,8 +30,8 @@ obj-y				+= step.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-y				+= cpu/
 obj-y				+= acpi/
-obj-$(CONFIG_X86_BIOS_REBOOT)	+= reboot_32.o
-obj-$(CONFIG_X86_64)            += reboot_64.o
+obj-$(CONFIG_X86_BIOS_REBOOT)	+= reboot.o
+obj-$(CONFIG_X86_64)		+= reboot.o
 obj-$(CONFIG_MCA)		+= mca_32.o
 obj-$(CONFIG_X86_MSR)		+= msr.o
 obj-$(CONFIG_X86_CPUID)		+= cpuid.o
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
new file mode 100644
index 000000000000..5b32f0b4d133
--- /dev/null
+++ b/arch/x86/kernel/reboot.c
@@ -0,0 +1,449 @@
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/pm.h>
+#include <linux/efi.h>
+#include <acpi/reboot.h>
+#include <asm/io.h>
+#include <asm/apic.h>
+#include <asm/desc.h>
+#include <asm/hpet.h>
+#include <asm/reboot_fixups.h>
+#include <asm/reboot.h>
+
+#ifdef CONFIG_X86_32
+# include <linux/dmi.h>
+# include <linux/ctype.h>
+# include <linux/mc146818rtc.h>
+# include <asm/pgtable.h>
+#else
+# include <asm/iommu.h>
+#endif
+
+/*
+ * Power off function, if any
+ */
+void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
+
+static long no_idt[3];
+static int reboot_mode;
+enum reboot_type reboot_type = BOOT_KBD;
+int reboot_force;
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_SMP)
+static int reboot_cpu = -1;
+#endif
+
+/* reboot=b[ios] | s[mp] | t[riple] | k[bd] | e[fi] [, [w]arm | [c]old]
+   warm   Don't set the cold reboot flag
+   cold   Set the cold reboot flag
+   bios   Reboot by jumping through the BIOS (only for X86_32)
+   smp    Reboot by executing reset on BSP or other CPU (only for X86_32)
+   triple Force a triple fault (init)
+   kbd    Use the keyboard controller. cold reset (default)
+   acpi   Use the RESET_REG in the FADT
+   efi    Use efi reset_system runtime service
+   force  Avoid anything that could hang.
+ */
+static int __init reboot_setup(char *str)
+{
+	for (;;) {
+		switch (*str) {
+		case 'w':
+			reboot_mode = 0x1234;
+			break;
+
+		case 'c':
+			reboot_mode = 0;
+			break;
+
+#ifdef CONFIG_X86_32
+#ifdef CONFIG_SMP
+		case 's':
+			if (isdigit(*(str+1))) {
+				reboot_cpu = (int) (*(str+1) - '0');
+				if (isdigit(*(str+2)))
+					reboot_cpu = reboot_cpu*10 + (int)(*(str+2) - '0');
+			}
+				/* we will leave sorting out the final value
+				   when we are ready to reboot, since we might not
+				   have set up boot_cpu_id or smp_num_cpu */
+			break;
+#endif /* CONFIG_SMP */
+
+		case 'b':
+#endif
+		case 'a':
+		case 'k':
+		case 't':
+		case 'e':
+			reboot_type = *str;
+			break;
+
+		case 'f':
+			reboot_force = 1;
+			break;
+		}
+
+		str = strchr(str, ',');
+		if (str)
+			str++;
+		else
+			break;
+	}
+	return 1;
+}
+
+__setup("reboot=", reboot_setup);
+
+
+#ifdef CONFIG_X86_32
+/*
+ * Reboot options and system auto-detection code provided by
+ * Dell Inc. so their systems "just work". :-)
+ */
+
+/*
+ * Some machines require the "reboot=b"  commandline option,
+ * this quirk makes that automatic.
+ */
+static int __init set_bios_reboot(const struct dmi_system_id *d)
+{
+	if (reboot_type != BOOT_BIOS) {
+		reboot_type = BOOT_BIOS;
+		printk(KERN_INFO "%s series board detected. Selecting BIOS-method for reboots.\n", d->ident);
+	}
+	return 0;
+}
+
+static struct dmi_system_id __initdata reboot_dmi_table[] = {
+	{	/* Handle problems with rebooting on Dell E520's */
+		.callback = set_bios_reboot,
+		.ident = "Dell E520",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM061"),
+		},
+	},
+	{	/* Handle problems with rebooting on Dell 1300's */
+		.callback = set_bios_reboot,
+		.ident = "Dell PowerEdge 1300",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1300/"),
+		},
+	},
+	{	/* Handle problems with rebooting on Dell 300's */
+		.callback = set_bios_reboot,
+		.ident = "Dell PowerEdge 300",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 300/"),
+		},
+	},
+	{       /* Handle problems with rebooting on Dell Optiplex 745's SFF*/
+		.callback = set_bios_reboot,
+		.ident = "Dell OptiPlex 745",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 745"),
+			DMI_MATCH(DMI_BOARD_NAME, "0WF810"),
+		},
+	},
+	{	/* Handle problems with rebooting on Dell 2400's */
+		.callback = set_bios_reboot,
+		.ident = "Dell PowerEdge 2400",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2400"),
+		},
+	},
+	{	/* Handle problems with rebooting on HP laptops */
+		.callback = set_bios_reboot,
+		.ident = "HP Compaq Laptop",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq"),
+		},
+	},
+	{ }
+};
+
+static int __init reboot_init(void)
+{
+	dmi_check_system(reboot_dmi_table);
+	return 0;
+}
+core_initcall(reboot_init);
+
+/* The following code and data reboots the machine by switching to real
+   mode and jumping to the BIOS reset entry point, as if the CPU has
+   really been reset.  The previous version asked the keyboard
+   controller to pulse the CPU reset line, which is more thorough, but
+   doesn't work with at least one type of 486 motherboard.  It is easy
+   to stop this code working; hence the copious comments. */
+static unsigned long long
+real_mode_gdt_entries [3] =
+{
+	0x0000000000000000ULL,	/* Null descriptor */
+	0x00009a000000ffffULL,	/* 16-bit real-mode 64k code at 0x00000000 */
+	0x000092000100ffffULL	/* 16-bit real-mode 64k data at 0x00000100 */
+};
+
+static struct desc_ptr
+real_mode_gdt = { sizeof (real_mode_gdt_entries) - 1, (long)real_mode_gdt_entries },
+real_mode_idt = { 0x3ff, 0 };
+
+/* This is 16-bit protected mode code to disable paging and the cache,
+   switch to real mode and jump to the BIOS reset code.
+
+   The instruction that switches to real mode by writing to CR0 must be
+   followed immediately by a far jump instruction, which set CS to a
+   valid value for real mode, and flushes the prefetch queue to avoid
+   running instructions that have already been decoded in protected
+   mode.
+
+   Clears all the flags except ET, especially PG (paging), PE
+   (protected-mode enable) and TS (task switch for coprocessor state
+   save).  Flushes the TLB after paging has been disabled.  Sets CD and
+   NW, to disable the cache on a 486, and invalidates the cache.  This
+   is more like the state of a 486 after reset.  I don't know if
+   something else should be done for other chips.
+
+   More could be done here to set up the registers as if a CPU reset had
+   occurred; hopefully real BIOSs don't assume much. */
+static unsigned char real_mode_switch [] =
+{
+	0x66, 0x0f, 0x20, 0xc0,			/*    movl  %cr0,%eax        */
+	0x66, 0x83, 0xe0, 0x11,			/*    andl  $0x00000011,%eax */
+	0x66, 0x0d, 0x00, 0x00, 0x00, 0x60,	/*    orl   $0x60000000,%eax */
+	0x66, 0x0f, 0x22, 0xc0,			/*    movl  %eax,%cr0        */
+	0x66, 0x0f, 0x22, 0xd8,			/*    movl  %eax,%cr3        */
+	0x66, 0x0f, 0x20, 0xc3,			/*    movl  %cr0,%ebx        */
+	0x66, 0x81, 0xe3, 0x00, 0x00, 0x00, 0x60,	/*    andl  $0x60000000,%ebx */
+	0x74, 0x02,				/*    jz    f                */
+	0x0f, 0x09,				/*    wbinvd                 */
+	0x24, 0x10,				/* f: andb  $0x10,al         */
+	0x66, 0x0f, 0x22, 0xc0			/*    movl  %eax,%cr0        */
+};
+static unsigned char jump_to_bios [] =
+{
+	0xea, 0x00, 0x00, 0xff, 0xff		/*    ljmp  $0xffff,$0x0000  */
+};
+
+/*
+ * Switch to real mode and then execute the code
+ * specified by the code and length parameters.
+ * We assume that length will aways be less that 100!
+ */
+void machine_real_restart(unsigned char *code, int length)
+{
+	local_irq_disable();
+
+	/* Write zero to CMOS register number 0x0f, which the BIOS POST
+	   routine will recognize as telling it to do a proper reboot.  (Well
+	   that's what this book in front of me says -- it may only apply to
+	   the Phoenix BIOS though, it's not clear).  At the same time,
+	   disable NMIs by setting the top bit in the CMOS address register,
+	   as we're about to do peculiar things to the CPU.  I'm not sure if
+	   `outb_p' is needed instead of just `outb'.  Use it to be on the
+	   safe side.  (Yes, CMOS_WRITE does outb_p's. -  Paul G.)
+	 */
+	spin_lock(&rtc_lock);
+	CMOS_WRITE(0x00, 0x8f);
+	spin_unlock(&rtc_lock);
+
+	/* Remap the kernel at virtual address zero, as well as offset zero
+	   from the kernel segment.  This assumes the kernel segment starts at
+	   virtual address PAGE_OFFSET. */
+	memcpy(swapper_pg_dir, swapper_pg_dir + USER_PGD_PTRS,
+		sizeof(swapper_pg_dir [0]) * KERNEL_PGD_PTRS);
+
+	/*
+	 * Use `swapper_pg_dir' as our page directory.
+	 */
+	load_cr3(swapper_pg_dir);
+
+	/* Write 0x1234 to absolute memory location 0x472.  The BIOS reads
+	   this on booting to tell it to "Bypass memory test (also warm
+	   boot)".  This seems like a fairly standard thing that gets set by
+	   REBOOT.COM programs, and the previous reset routine did this
+	   too. */
+	*((unsigned short *)0x472) = reboot_mode;
+
+	/* For the switch to real mode, copy some code to low memory.  It has
+	   to be in the first 64k because it is running in 16-bit mode, and it
+	   has to have the same physical and virtual address, because it turns
+	   off paging.  Copy it near the end of the first page, out of the way
+	   of BIOS variables. */
+	memcpy((void *)(0x1000 - sizeof(real_mode_switch) - 100),
+		real_mode_switch, sizeof (real_mode_switch));
+	memcpy((void *)(0x1000 - 100), code, length);
+
+	/* Set up the IDT for real mode. */
+	load_idt(&real_mode_idt);
+
+	/* Set up a GDT from which we can load segment descriptors for real
+	   mode.  The GDT is not used in real mode; it is just needed here to
+	   prepare the descriptors. */
+	load_gdt(&real_mode_gdt);
+
+	/* Load the data segment registers, and thus the descriptors ready for
+	   real mode.  The base address of each segment is 0x100, 16 times the
+	   selector value being loaded here.  This is so that the segment
+	   registers don't have to be reloaded after switching to real mode:
+	   the values are consistent for real mode operation already. */
+	__asm__ __volatile__ ("movl $0x0010,%%eax\n"
+				"\tmovl %%eax,%%ds\n"
+				"\tmovl %%eax,%%es\n"
+				"\tmovl %%eax,%%fs\n"
+				"\tmovl %%eax,%%gs\n"
+				"\tmovl %%eax,%%ss" : : : "eax");
+
+	/* Jump to the 16-bit code that we copied earlier.  It disables paging
+	   and the cache, switches to real mode, and jumps to the BIOS reset
+	   entry point. */
+	__asm__ __volatile__ ("ljmp $0x0008,%0"
+				:
+				: "i" ((void *)(0x1000 - sizeof (real_mode_switch) - 100)));
+}
+#ifdef CONFIG_APM_MODULE
+EXPORT_SYMBOL(machine_real_restart);
+#endif
+
+#endif /* CONFIG_X86_32 */
+
+static inline void kb_wait(void)
+{
+	int i;
+
+	for (i = 0; i < 0x10000; i++)
+		if ((inb_p(0x64) & 0x02) == 0)
+			break;
+}
+
+void machine_emergency_restart(void)
+{
+	int i;
+
+	/* Tell the BIOS if we want cold or warm reboot */
+	*((unsigned short *)__va(0x472)) = reboot_mode;
+
+	for (;;) {
+		/* Could also try the reset bit in the Hammer NB */
+		switch (reboot_type) {
+		case BOOT_KBD:
+			for (i = 0; i < 10; i++) {
+				kb_wait();
+				udelay(50);
+				outb(0xfe, 0x64); /* pulse reset low */
+				udelay(50);
+			}
+
+		case BOOT_TRIPLE:
+			load_idt((const struct desc_ptr *)&no_idt);
+			__asm__ __volatile__("int3");
+
+			reboot_type = BOOT_KBD;
+			break;
+
+#ifdef CONFIG_X86_32
+		case BOOT_BIOS:
+			machine_real_restart(jump_to_bios, sizeof(jump_to_bios));
+
+			reboot_type = BOOT_KBD;
+			break;
+#endif
+
+		case BOOT_ACPI:
+			acpi_reboot();
+			reboot_type = BOOT_KBD;
+			break;
+
+
+		case BOOT_EFI:
+			if (efi_enabled)
+				efi.reset_system(reboot_mode ? EFI_RESET_WARM : EFI_RESET_COLD,
+						 EFI_SUCCESS, 0, NULL);
+
+			reboot_type = BOOT_KBD;
+			break;
+		}
+	}
+}
+
+void machine_shutdown(void)
+{
+	/* Stop the cpus and apics */
+#ifdef CONFIG_SMP
+	int reboot_cpu_id;
+
+	/* The boot cpu is always logical cpu 0 */
+	reboot_cpu_id = 0;
+
+#ifdef CONFIG_X86_32
+	/* See if there has been given a command line override */
+	if ((reboot_cpu != -1) && (reboot_cpu < NR_CPUS) &&
+		cpu_isset(reboot_cpu, cpu_online_map))
+		reboot_cpu_id = reboot_cpu;
+#endif
+
+	/* Make certain the cpu I'm about to reboot on is online */
+	if (!cpu_isset(reboot_cpu_id, cpu_online_map))
+		reboot_cpu_id = smp_processor_id();
+
+	/* Make certain I only run on the appropriate processor */
+	set_cpus_allowed(current, cpumask_of_cpu(reboot_cpu_id));
+
+	/* O.K Now that I'm on the appropriate processor,
+	 * stop all of the others.
+	 */
+	smp_send_stop();
+#endif
+
+	lapic_shutdown();
+
+#ifdef CONFIG_X86_IO_APIC
+	disable_IO_APIC();
+#endif
+
+#ifdef CONFIG_HPET_TIMER
+	hpet_disable();
+#endif
+
+#ifdef CONFIG_X86_64
+	pci_iommu_shutdown();
+#endif
+}
+
+void machine_restart(char *__unused)
+{
+	printk("machine restart\n");
+
+	if (!reboot_force)
+		machine_shutdown();
+	machine_emergency_restart();
+}
+
+void machine_halt(void)
+{
+}
+
+void machine_power_off(void)
+{
+	if (pm_power_off) {
+		if (!reboot_force)
+			machine_shutdown();
+		pm_power_off();
+	}
+}
+
+struct machine_ops machine_ops = {
+	.power_off = machine_power_off,
+	.shutdown = machine_shutdown,
+	.emergency_restart = machine_emergency_restart,
+	.restart = machine_restart,
+	.halt = machine_halt
+};
diff --git a/arch/x86/kernel/reboot_32.c b/arch/x86/kernel/reboot_32.c
deleted file mode 100644
index c3376fae639d..000000000000
--- a/arch/x86/kernel/reboot_32.c
+++ /dev/null
@@ -1,413 +0,0 @@
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/mc146818rtc.h>
-#include <linux/efi.h>
-#include <linux/dmi.h>
-#include <linux/ctype.h>
-#include <linux/pm.h>
-#include <linux/reboot.h>
-#include <asm/uaccess.h>
-#include <asm/apic.h>
-#include <asm/hpet.h>
-#include <asm/desc.h>
-#include "mach_reboot.h"
-#include <asm/reboot_fixups.h>
-#include <asm/reboot.h>
-
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
-static int reboot_mode;
-static int reboot_thru_bios;
-
-#ifdef CONFIG_SMP
-static int reboot_cpu = -1;
-#endif
-static int __init reboot_setup(char *str)
-{
-	while(1) {
-		switch (*str) {
-		case 'w': /* "warm" reboot (no memory testing etc) */
-			reboot_mode = 0x1234;
-			break;
-		case 'c': /* "cold" reboot (with memory testing etc) */
-			reboot_mode = 0x0;
-			break;
-		case 'b': /* "bios" reboot by jumping through the BIOS */
-			reboot_thru_bios = 1;
-			break;
-		case 'h': /* "hard" reboot by toggling RESET and/or crashing the CPU */
-			reboot_thru_bios = 0;
-			break;
-#ifdef CONFIG_SMP
-		case 's': /* "smp" reboot by executing reset on BSP or other CPU*/
-			if (isdigit(*(str+1))) {
-				reboot_cpu = (int) (*(str+1) - '0');
-				if (isdigit(*(str+2)))
-					reboot_cpu = reboot_cpu*10 + (int)(*(str+2) - '0');
-			}
-				/* we will leave sorting out the final value 
-				when we are ready to reboot, since we might not
- 				have set up boot_cpu_id or smp_num_cpu */
-			break;
-#endif
-		}
-		if((str = strchr(str,',')) != NULL)
-			str++;
-		else
-			break;
-	}
-	return 1;
-}
-
-__setup("reboot=", reboot_setup);
-
-/*
- * Reboot options and system auto-detection code provided by
- * Dell Inc. so their systems "just work". :-)
- */
-
-/*
- * Some machines require the "reboot=b"  commandline option, this quirk makes that automatic.
- */
-static int __init set_bios_reboot(const struct dmi_system_id *d)
-{
-	if (!reboot_thru_bios) {
-		reboot_thru_bios = 1;
-		printk(KERN_INFO "%s series board detected. Selecting BIOS-method for reboots.\n", d->ident);
-	}
-	return 0;
-}
-
-static struct dmi_system_id __initdata reboot_dmi_table[] = {
-	{	/* Handle problems with rebooting on Dell E520's */
-		.callback = set_bios_reboot,
-		.ident = "Dell E520",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM061"),
-		},
-	},
-	{	/* Handle problems with rebooting on Dell 1300's */
-		.callback = set_bios_reboot,
-		.ident = "Dell PowerEdge 1300",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1300/"),
-		},
-	},
-	{	/* Handle problems with rebooting on Dell 300's */
-		.callback = set_bios_reboot,
-		.ident = "Dell PowerEdge 300",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 300/"),
-		},
-	},
-	{       /* Handle problems with rebooting on Dell Optiplex 745's SFF*/
-		.callback = set_bios_reboot,
-		.ident = "Dell OptiPlex 745",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 745"),
-			DMI_MATCH(DMI_BOARD_NAME, "0WF810"),
-		},
-	},
-	{	/* Handle problems with rebooting on Dell 2400's */
-		.callback = set_bios_reboot,
-		.ident = "Dell PowerEdge 2400",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2400"),
-		},
-	},
-	{	/* Handle problems with rebooting on HP laptops */
-		.callback = set_bios_reboot,
-		.ident = "HP Compaq Laptop",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq"),
-		},
-	},
-	{ }
-};
-
-static int __init reboot_init(void)
-{
-	dmi_check_system(reboot_dmi_table);
-	return 0;
-}
-
-core_initcall(reboot_init);
-
-/* The following code and data reboots the machine by switching to real
-   mode and jumping to the BIOS reset entry point, as if the CPU has
-   really been reset.  The previous version asked the keyboard
-   controller to pulse the CPU reset line, which is more thorough, but
-   doesn't work with at least one type of 486 motherboard.  It is easy
-   to stop this code working; hence the copious comments. */
-
-static unsigned long long
-real_mode_gdt_entries [3] =
-{
-	0x0000000000000000ULL,	/* Null descriptor */
-	0x00009a000000ffffULL,	/* 16-bit real-mode 64k code at 0x00000000 */
-	0x000092000100ffffULL	/* 16-bit real-mode 64k data at 0x00000100 */
-};
-
-static struct desc_ptr
-real_mode_gdt = { sizeof (real_mode_gdt_entries) - 1, (long)real_mode_gdt_entries },
-real_mode_idt = { 0x3ff, 0 },
-no_idt = { 0, 0 };
-
-
-/* This is 16-bit protected mode code to disable paging and the cache,
-   switch to real mode and jump to the BIOS reset code.
-
-   The instruction that switches to real mode by writing to CR0 must be
-   followed immediately by a far jump instruction, which set CS to a
-   valid value for real mode, and flushes the prefetch queue to avoid
-   running instructions that have already been decoded in protected
-   mode.
-
-   Clears all the flags except ET, especially PG (paging), PE
-   (protected-mode enable) and TS (task switch for coprocessor state
-   save).  Flushes the TLB after paging has been disabled.  Sets CD and
-   NW, to disable the cache on a 486, and invalidates the cache.  This
-   is more like the state of a 486 after reset.  I don't know if
-   something else should be done for other chips.
-
-   More could be done here to set up the registers as if a CPU reset had
-   occurred; hopefully real BIOSs don't assume much. */
-
-static unsigned char real_mode_switch [] =
-{
-	0x66, 0x0f, 0x20, 0xc0,			/*    movl  %cr0,%eax        */
-	0x66, 0x83, 0xe0, 0x11,			/*    andl  $0x00000011,%eax */
-	0x66, 0x0d, 0x00, 0x00, 0x00, 0x60,	/*    orl   $0x60000000,%eax */
-	0x66, 0x0f, 0x22, 0xc0,			/*    movl  %eax,%cr0        */
-	0x66, 0x0f, 0x22, 0xd8,			/*    movl  %eax,%cr3        */
-	0x66, 0x0f, 0x20, 0xc3,			/*    movl  %cr0,%ebx        */
-	0x66, 0x81, 0xe3, 0x00, 0x00, 0x00, 0x60,	/*    andl  $0x60000000,%ebx */
-	0x74, 0x02,				/*    jz    f                */
-	0x0f, 0x09,				/*    wbinvd                 */
-	0x24, 0x10,				/* f: andb  $0x10,al         */
-	0x66, 0x0f, 0x22, 0xc0			/*    movl  %eax,%cr0        */
-};
-static unsigned char jump_to_bios [] =
-{
-	0xea, 0x00, 0x00, 0xff, 0xff		/*    ljmp  $0xffff,$0x0000  */
-};
-
-/*
- * Switch to real mode and then execute the code
- * specified by the code and length parameters.
- * We assume that length will aways be less that 100!
- */
-void machine_real_restart(unsigned char *code, int length)
-{
-	local_irq_disable();
-
-	/* Write zero to CMOS register number 0x0f, which the BIOS POST
-	   routine will recognize as telling it to do a proper reboot.  (Well
-	   that's what this book in front of me says -- it may only apply to
-	   the Phoenix BIOS though, it's not clear).  At the same time,
-	   disable NMIs by setting the top bit in the CMOS address register,
-	   as we're about to do peculiar things to the CPU.  I'm not sure if
-	   `outb_p' is needed instead of just `outb'.  Use it to be on the
-	   safe side.  (Yes, CMOS_WRITE does outb_p's. -  Paul G.)
-	 */
-
-	spin_lock(&rtc_lock);
-	CMOS_WRITE(0x00, 0x8f);
-	spin_unlock(&rtc_lock);
-
-	/* Remap the kernel at virtual address zero, as well as offset zero
-	   from the kernel segment.  This assumes the kernel segment starts at
-	   virtual address PAGE_OFFSET. */
-
-	memcpy (swapper_pg_dir, swapper_pg_dir + USER_PGD_PTRS,
-		sizeof (swapper_pg_dir [0]) * KERNEL_PGD_PTRS);
-
-	/*
-	 * Use `swapper_pg_dir' as our page directory.
-	 */
-	load_cr3(swapper_pg_dir);
-
-	/* Write 0x1234 to absolute memory location 0x472.  The BIOS reads
-	   this on booting to tell it to "Bypass memory test (also warm
-	   boot)".  This seems like a fairly standard thing that gets set by
-	   REBOOT.COM programs, and the previous reset routine did this
-	   too. */
-
-	*((unsigned short *)0x472) = reboot_mode;
-
-	/* For the switch to real mode, copy some code to low memory.  It has
-	   to be in the first 64k because it is running in 16-bit mode, and it
-	   has to have the same physical and virtual address, because it turns
-	   off paging.  Copy it near the end of the first page, out of the way
-	   of BIOS variables. */
-
-	memcpy ((void *) (0x1000 - sizeof (real_mode_switch) - 100),
-		real_mode_switch, sizeof (real_mode_switch));
-	memcpy ((void *) (0x1000 - 100), code, length);
-
-	/* Set up the IDT for real mode. */
-
-	load_idt(&real_mode_idt);
-
-	/* Set up a GDT from which we can load segment descriptors for real
-	   mode.  The GDT is not used in real mode; it is just needed here to
-	   prepare the descriptors. */
-
-	load_gdt(&real_mode_gdt);
-
-	/* Load the data segment registers, and thus the descriptors ready for
-	   real mode.  The base address of each segment is 0x100, 16 times the
-	   selector value being loaded here.  This is so that the segment
-	   registers don't have to be reloaded after switching to real mode:
-	   the values are consistent for real mode operation already. */
-
-	__asm__ __volatile__ ("movl $0x0010,%%eax\n"
-				"\tmovl %%eax,%%ds\n"
-				"\tmovl %%eax,%%es\n"
-				"\tmovl %%eax,%%fs\n"
-				"\tmovl %%eax,%%gs\n"
-				"\tmovl %%eax,%%ss" : : : "eax");
-
-	/* Jump to the 16-bit code that we copied earlier.  It disables paging
-	   and the cache, switches to real mode, and jumps to the BIOS reset
-	   entry point. */
-
-	__asm__ __volatile__ ("ljmp $0x0008,%0"
-				:
-				: "i" ((void *) (0x1000 - sizeof (real_mode_switch) - 100)));
-}
-#ifdef CONFIG_APM_MODULE
-EXPORT_SYMBOL(machine_real_restart);
-#endif
-
-static void native_machine_shutdown(void)
-{
-#ifdef CONFIG_SMP
-	int reboot_cpu_id;
-
-	/* The boot cpu is always logical cpu 0 */
-	reboot_cpu_id = 0;
-
-	/* See if there has been given a command line override */
-	if ((reboot_cpu != -1) && (reboot_cpu < NR_CPUS) &&
-		cpu_isset(reboot_cpu, cpu_online_map)) {
-		reboot_cpu_id = reboot_cpu;
-	}
-
-	/* Make certain the cpu I'm rebooting on is online */
-	if (!cpu_isset(reboot_cpu_id, cpu_online_map)) {
-		reboot_cpu_id = smp_processor_id();
-	}
-
-	/* Make certain I only run on the appropriate processor */
-	set_cpus_allowed(current, cpumask_of_cpu(reboot_cpu_id));
-
-	/* O.K. Now that I'm on the appropriate processor, stop
-	 * all of the others, and disable their local APICs.
-	 */
-
-	smp_send_stop();
-#endif /* CONFIG_SMP */
-
-	lapic_shutdown();
-
-#ifdef CONFIG_X86_IO_APIC
-	disable_IO_APIC();
-#endif
-#ifdef CONFIG_HPET_TIMER
-	hpet_disable();
-#endif
-}
-
-void __attribute__((weak)) mach_reboot_fixups(void)
-{
-}
-
-static void native_machine_emergency_restart(void)
-{
-	if (!reboot_thru_bios) {
-		if (efi_enabled) {
-			efi.reset_system(EFI_RESET_COLD, EFI_SUCCESS, 0, NULL);
-			load_idt(&no_idt);
-			__asm__ __volatile__("int3");
-		}
-		/* rebooting needs to touch the page at absolute addr 0 */
-		*((unsigned short *)__va(0x472)) = reboot_mode;
-		for (;;) {
-			mach_reboot_fixups(); /* for board specific fixups */
-			mach_reboot();
-			/* That didn't work - force a triple fault.. */
-			load_idt(&no_idt);
-			__asm__ __volatile__("int3");
-		}
-	}
-	if (efi_enabled)
-		efi.reset_system(EFI_RESET_WARM, EFI_SUCCESS, 0, NULL);
-
-	machine_real_restart(jump_to_bios, sizeof(jump_to_bios));
-}
-
-static void native_machine_restart(char * __unused)
-{
-	machine_shutdown();
-	machine_emergency_restart();
-}
-
-static void native_machine_halt(void)
-{
-}
-
-static void native_machine_power_off(void)
-{
-	if (pm_power_off) {
-		machine_shutdown();
-		pm_power_off();
-	}
-}
-
-
-struct machine_ops machine_ops = {
-	.power_off = native_machine_power_off,
-	.shutdown = native_machine_shutdown,
-	.emergency_restart = native_machine_emergency_restart,
-	.restart = native_machine_restart,
-	.halt = native_machine_halt,
-};
-
-void machine_power_off(void)
-{
-	machine_ops.power_off();
-}
-
-void machine_shutdown(void)
-{
-	machine_ops.shutdown();
-}
-
-void machine_emergency_restart(void)
-{
-	machine_ops.emergency_restart();
-}
-
-void machine_restart(char *cmd)
-{
-	machine_ops.restart(cmd);
-}
-
-void machine_halt(void)
-{
-	machine_ops.halt();
-}
diff --git a/arch/x86/kernel/reboot_64.c b/arch/x86/kernel/reboot_64.c
deleted file mode 100644
index d6bdf93ffca9..000000000000
--- a/arch/x86/kernel/reboot_64.c
+++ /dev/null
@@ -1,191 +0,0 @@
-/* Various gunk just to reboot the machine. */ 
-#include <linux/module.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/kernel.h>
-#include <linux/ctype.h>
-#include <linux/string.h>
-#include <linux/pm.h>
-#include <linux/kdebug.h>
-#include <linux/sched.h>
-#include <linux/efi.h>
-#include <acpi/reboot.h>
-#include <asm/io.h>
-#include <asm/delay.h>
-#include <asm/desc.h>
-#include <asm/hw_irq.h>
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/tlbflush.h>
-#include <asm/apic.h>
-#include <asm/hpet.h>
-#include <asm/gart.h>
-
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
-static long no_idt[3];
-enum reboot_type reboot_type = BOOT_KBD;
-static int reboot_mode = 0;
-int reboot_force;
-
-/* reboot=t[riple] | k[bd] | e[fi] [, [w]arm | [c]old]
-   warm   Don't set the cold reboot flag
-   cold   Set the cold reboot flag
-   triple Force a triple fault (init)
-   kbd    Use the keyboard controller. cold reset (default)
-   acpi   Use the RESET_REG in the FADT
-   efi    Use efi reset_system runtime service
-   force  Avoid anything that could hang.
- */ 
-static int __init reboot_setup(char *str)
-{
-	for (;;) {
-		switch (*str) {
-		case 'w': 
-			reboot_mode = 0x1234;
-			break;
-
-		case 'c':
-			reboot_mode = 0;
-			break;
-
-		case 't':
-		case 'a':
-		case 'b':
-		case 'k':
-		case 'e':
-			reboot_type = *str;
-			break;
-		case 'f':
-			reboot_force = 1;
-			break;
-		}
-		if((str = strchr(str,',')) != NULL)
-			str++;
-		else
-			break;
-	}
-	return 1;
-}
-
-__setup("reboot=", reboot_setup);
-
-static inline void kb_wait(void)
-{
-	int i;
-
-	for (i=0; i<0x10000; i++)
-		if ((inb_p(0x64) & 0x02) == 0)
-			break;
-}
-
-void machine_shutdown(void)
-{
-	unsigned long flags;
-
-	/* Stop the cpus and apics */
-#ifdef CONFIG_SMP
-	int reboot_cpu_id;
-
-	/* The boot cpu is always logical cpu 0 */
-	reboot_cpu_id = 0;
-
-	/* Make certain the cpu I'm about to reboot on is online */
-	if (!cpu_isset(reboot_cpu_id, cpu_online_map)) {
-		reboot_cpu_id = smp_processor_id();
-	}
-
-	/* Make certain I only run on the appropriate processor */
-	set_cpus_allowed(current, cpumask_of_cpu(reboot_cpu_id));
-
-	/* O.K Now that I'm on the appropriate processor,
-	 * stop all of the others.
-	 */
-	smp_send_stop();
-#endif
-
-	local_irq_save(flags);
-
-#ifndef CONFIG_SMP
-	disable_local_APIC();
-#endif
-
-	disable_IO_APIC();
-
-#ifdef CONFIG_HPET_TIMER
-	hpet_disable();
-#endif
-	local_irq_restore(flags);
-
-	pci_iommu_shutdown();
-}
-
-void machine_emergency_restart(void)
-{
-	int i;
-
-	/* Tell the BIOS if we want cold or warm reboot */
-	*((unsigned short *)__va(0x472)) = reboot_mode;
-       
-	for (;;) {
-		/* Could also try the reset bit in the Hammer NB */
-		switch (reboot_type) { 
-		case BOOT_KBD:
-		for (i=0; i<10; i++) {
-			kb_wait();
-			udelay(50);
-			outb(0xfe,0x64);         /* pulse reset low */
-			udelay(50);
-		}
-
-		case BOOT_TRIPLE: 
-			load_idt((const struct desc_ptr *)&no_idt);
-			__asm__ __volatile__("int3");
-
-			reboot_type = BOOT_KBD;
-			break;
-
-		case BOOT_ACPI:
-			acpi_reboot();
-			reboot_type = BOOT_KBD;
-			break;
-
-		case BOOT_EFI:
-			if (efi_enabled)
-				efi.reset_system(reboot_mode ? EFI_RESET_WARM : EFI_RESET_COLD,
-						 EFI_SUCCESS, 0, NULL);
-			reboot_type = BOOT_KBD;
-			break;
-		}
-	}      
-}
-
-void machine_restart(char * __unused)
-{
-	printk("machine restart\n");
-
-	if (!reboot_force) {
-		machine_shutdown();
-	}
-	machine_emergency_restart();
-}
-
-void machine_halt(void)
-{
-}
-
-void machine_power_off(void)
-{
-	if (pm_power_off) {
-		if (!reboot_force) {
-			machine_shutdown();
-		}
-		pm_power_off();
-	}
-}
-
diff --git a/include/asm-x86/emergency-restart.h b/include/asm-x86/emergency-restart.h
index 54189084462a..8e6aef19f8f0 100644
--- a/include/asm-x86/emergency-restart.h
+++ b/include/asm-x86/emergency-restart.h
@@ -4,6 +4,9 @@
 enum reboot_type {
 	BOOT_TRIPLE = 't',
 	BOOT_KBD = 'k',
+#ifdef CONFIG_X86_32
+	BOOT_BIOS = 'b',
+#endif
 	BOOT_ACPI = 'a',
 	BOOT_EFI = 'e'
 };
-- 
cgit v1.2.3-59-g8ed1b


From 6d7d7433750c7c6eec93d7b3206019e329228686 Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:32:51 +0100
Subject: x86 boot : export boot_params via debugfs for debugging

This patch export the boot parameters via debugfs for debugging.

The files added are as follow:

boot_params/data    :  binary file for struct boot_params
boot_params/version :  boot protocol version

This patch is based on 2.6.24-rc5-mm1 and has been tested on i386 and
x86_64 platform.

This patch is based on the Peter Anvin's proposal.

Signed-off-by: Huang Ying <ying.huang@intel.com>

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/Kconfig.debug     |  7 +++++
 arch/x86/kernel/Makefile   |  2 +-
 arch/x86/kernel/kdebugfs.c | 65 ++++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/setup64.c  |  4 +++
 arch/x86/kernel/setup_32.c |  4 +++
 5 files changed, 81 insertions(+), 1 deletion(-)
 create mode 100644 arch/x86/kernel/kdebugfs.c

(limited to 'arch')

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 660200915baa..15854b53badc 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -185,4 +185,11 @@ config DEFAULT_IO_DELAY_TYPE
 	default IO_DELAY_TYPE_NONE
 endif
 
+config DEBUG_BOOT_PARAMS
+	bool "Debug boot parameters"
+	depends on DEBUG_KERNEL
+	depends on DEBUG_FS
+	help
+	  This option will cause struct boot_params to be exported via debugfs.
+
 endmenu
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index b40bed4baa77..3d23ccd366ea 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -16,7 +16,7 @@ obj-$(CONFIG_X86_32)	+= sys_i386_32.o i386_ksyms_32.o
 obj-$(CONFIG_X86_64)	+= sys_x86_64.o x8664_ksyms_64.o
 obj-$(CONFIG_X86_64)	+= syscall_64.o vsyscall_64.o setup64.o
 obj-y			+= pci-dma_$(BITS).o  bootflag.o e820_$(BITS).o
-obj-y			+= quirks.o i8237.o topology.o
+obj-y			+= quirks.o i8237.o topology.o kdebugfs.o
 obj-y			+= alternative.o i8253.o
 obj-$(CONFIG_X86_64)	+= pci-nommu_64.o bugs_64.o
 obj-y			+= tsc_$(BITS).o io_delay.o rtc.o
diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c
new file mode 100644
index 000000000000..73354302fda7
--- /dev/null
+++ b/arch/x86/kernel/kdebugfs.c
@@ -0,0 +1,65 @@
+/*
+ * Architecture specific debugfs files
+ *
+ * Copyright (C) 2007, Intel Corp.
+ *	Huang Ying <ying.huang@intel.com>
+ *
+ * This file is released under the GPLv2.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/stat.h>
+#include <linux/init.h>
+
+#include <asm/setup.h>
+
+#ifdef CONFIG_DEBUG_BOOT_PARAMS
+static struct debugfs_blob_wrapper boot_params_blob = {
+	.data = &boot_params,
+	.size = sizeof(boot_params),
+};
+
+static int __init boot_params_kdebugfs_init(void)
+{
+	int error;
+	struct dentry *dbp, *version, *data;
+
+	dbp = debugfs_create_dir("boot_params", NULL);
+	if (!dbp) {
+		error = -ENOMEM;
+		goto err_return;
+	}
+	version = debugfs_create_x16("version", S_IRUGO, dbp,
+				     &boot_params.hdr.version);
+	if (!version) {
+		error = -ENOMEM;
+		goto err_dir;
+	}
+	data = debugfs_create_blob("data", S_IRUGO, dbp,
+				   &boot_params_blob);
+	if (!data) {
+		error = -ENOMEM;
+		goto err_version;
+	}
+	return 0;
+err_version:
+	debugfs_remove(version);
+err_dir:
+	debugfs_remove(dbp);
+err_return:
+	return error;
+}
+#endif
+
+static int __init arch_kdebugfs_init(void)
+{
+	int error = 0;
+
+#ifdef CONFIG_DEBUG_BOOT_PARAMS
+	error = boot_params_kdebugfs_init();
+#endif
+
+	return error;
+}
+
+arch_initcall(arch_kdebugfs_init);
diff --git a/arch/x86/kernel/setup64.c b/arch/x86/kernel/setup64.c
index 3b0ffa31f3c0..8fa0de810d0b 100644
--- a/arch/x86/kernel/setup64.c
+++ b/arch/x86/kernel/setup64.c
@@ -24,7 +24,11 @@
 #include <asm/sections.h>
 #include <asm/setup.h>
 
+#ifndef CONFIG_DEBUG_BOOT_PARAMS
 struct boot_params __initdata boot_params;
+#else
+struct boot_params boot_params;
+#endif
 
 cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
 
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 704550fdb84c..3bce4af60bb6 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -194,7 +194,11 @@ unsigned long saved_videomode;
 
 static char __initdata command_line[COMMAND_LINE_SIZE];
 
+#ifndef CONFIG_DEBUG_BOOT_PARAMS
 struct boot_params __initdata boot_params;
+#else
+struct boot_params boot_params;
+#endif
 
 #if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
 struct edd edd;
-- 
cgit v1.2.3-59-g8ed1b


From cf8fa920cb4271f17e0265c863d64bea1b31941a Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:32:51 +0100
Subject: i386: handle an initrd in highmem (version 2)

The boot protocol has until now required that the initrd be located in
lowmem, which makes the lowmem/highmem boundary visible to the boot
loader.  This was exported to the bootloader via a compile-time
field.  Unfortunately, the vmalloc= command-line option breaks this
part of the protocol; instead of adding yet another hack that affects
the bootloader, have the kernel relocate the initrd down below the
lowmem boundary inside the kernel itself.

Note that this does not rely on HIGHMEM being enabled in the kernel.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/boot/header.S     |   5 +-
 arch/x86/kernel/setup_32.c | 130 ++++++++++++++++++++++++++++++++++++---------
 arch/x86/mm/discontig_32.c |   4 +-
 3 files changed, 112 insertions(+), 27 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 4cc5b0411db5..64ad9016585a 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -195,10 +195,13 @@ cmd_line_ptr:	.long	0		# (Header version 0x0202 or later)
 					# can be located anywhere in
 					# low memory 0x10000 or higher.
 
-ramdisk_max:	.long (-__PAGE_OFFSET-(512 << 20)-1) & 0x7fffffff
+ramdisk_max:	.long 0x7fffffff
 					# (Header version 0x0203 or later)
 					# The highest safe address for
 					# the contents of an initrd
+					# The current kernel allows up to 4 GB,
+					# but leave it at 2 GB to avoid
+					# possible bootloader bugs.
 
 kernel_alignment:  .long CONFIG_PHYSICAL_ALIGN	#physical addr alignment
 						#required for protected mode
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 3bce4af60bb6..6802a383077d 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -188,9 +188,9 @@ extern int root_mountflags;
 
 unsigned long saved_videomode;
 
-#define RAMDISK_IMAGE_START_MASK  	0x07FF
+#define RAMDISK_IMAGE_START_MASK	0x07FF
 #define RAMDISK_PROMPT_FLAG		0x8000
-#define RAMDISK_LOAD_FLAG		0x4000	
+#define RAMDISK_LOAD_FLAG		0x4000
 
 static char __initdata command_line[COMMAND_LINE_SIZE];
 
@@ -252,7 +252,7 @@ static int __init parse_mem(char *arg)
 		 * trim the existing memory map.
 		 */
 		unsigned long long mem_size;
- 
+
 		mem_size = memparse(arg, &arg);
 		limit_regions(mem_size);
 		user_defined_memmap = 1;
@@ -391,7 +391,7 @@ static void __init reserve_ebda_region(void)
 	unsigned int addr;
 	addr = get_bios_ebda();
 	if (addr)
-		reserve_bootmem(addr, PAGE_SIZE);	
+		reserve_bootmem(addr, PAGE_SIZE);
 }
 
 #ifndef CONFIG_NEED_MULTIPLE_NODES
@@ -496,6 +496,100 @@ static inline void __init reserve_crashkernel(void)
 {}
 #endif
 
+#ifdef CONFIG_BLK_DEV_INITRD
+
+static bool do_relocate_initrd = false;
+
+static void __init reserve_initrd(void)
+{
+	unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
+	unsigned long ramdisk_size  = boot_params.hdr.ramdisk_size;
+	unsigned long ramdisk_end   = ramdisk_image + ramdisk_size;
+	unsigned long end_of_lowmem = max_low_pfn << PAGE_SHIFT;
+	unsigned long ramdisk_here;
+
+	initrd_start = 0;
+
+	if (!boot_params.hdr.type_of_loader ||
+	    !ramdisk_image || !ramdisk_size)
+		return;		/* No initrd provided by bootloader */
+
+	if (ramdisk_end < ramdisk_image) {
+		printk(KERN_ERR "initrd wraps around end of memory, "
+		       "disabling initrd\n");
+		return;
+	}
+	if (ramdisk_size >= end_of_lowmem/2) {
+		printk(KERN_ERR "initrd too large to handle, "
+		       "disabling initrd\n");
+		return;
+	}
+	if (ramdisk_end <= end_of_lowmem) {
+		/* All in lowmem, easy case */
+		reserve_bootmem(ramdisk_image, ramdisk_size);
+		initrd_start = ramdisk_image + PAGE_OFFSET;
+		initrd_end = initrd_start+ramdisk_size;
+		return;
+	}
+
+	/* We need to move the initrd down into lowmem */
+	ramdisk_here = (end_of_lowmem - ramdisk_size) & PAGE_MASK;
+
+	/* Note: this includes all the lowmem currently occupied by
+	   the initrd, we rely on that fact to keep the data intact. */
+	reserve_bootmem(ramdisk_here, ramdisk_size);
+	initrd_start = ramdisk_here + PAGE_OFFSET;
+	initrd_end   = initrd_start + ramdisk_size;
+
+	do_relocate_initrd = true;
+}
+
+#define MAX_MAP_CHUNK	(NR_FIX_BTMAPS << PAGE_SHIFT)
+
+static void __init relocate_initrd(void)
+{
+	unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
+	unsigned long ramdisk_size  = boot_params.hdr.ramdisk_size;
+	unsigned long end_of_lowmem = max_low_pfn << PAGE_SHIFT;
+	unsigned long ramdisk_here;
+	unsigned long slop, clen, mapaddr;
+	char *p, *q;
+
+	if (!do_relocate_initrd)
+		return;
+
+	ramdisk_here = initrd_start - PAGE_OFFSET;
+
+	q = (char *)initrd_start;
+
+	/* Copy any lowmem portion of the initrd */
+	if (ramdisk_image < end_of_lowmem) {
+		clen = end_of_lowmem - ramdisk_image;
+		p = (char *)__va(ramdisk_image);
+		memcpy(q, p, clen);
+		q += clen;
+		ramdisk_image += clen;
+		ramdisk_size  -= clen;
+	}
+
+	/* Copy the highmem portion of the initrd */
+	while (ramdisk_size) {
+		slop = ramdisk_image & ~PAGE_MASK;
+		clen = ramdisk_size;
+		if (clen > MAX_MAP_CHUNK-slop)
+			clen = MAX_MAP_CHUNK-slop;
+		mapaddr = ramdisk_image & PAGE_MASK;
+		p = bt_ioremap(mapaddr, clen+slop);
+		memcpy(q, p+slop, clen);
+		bt_iounmap(p, clen+slop);
+		q += clen;
+		ramdisk_image += clen;
+		ramdisk_size  -= clen;
+	}
+}
+
+#endif /* CONFIG_BLK_DEV_INITRD */
+
 void __init setup_bootmem_allocator(void)
 {
 	unsigned long bootmap_size;
@@ -551,26 +645,10 @@ void __init setup_bootmem_allocator(void)
 	 */
 	find_smp_config();
 #endif
-	numa_kva_reserve();
 #ifdef CONFIG_BLK_DEV_INITRD
-	if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
-		unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
-		unsigned long ramdisk_size  = boot_params.hdr.ramdisk_size;
-		unsigned long ramdisk_end   = ramdisk_image + ramdisk_size;
-		unsigned long end_of_lowmem = max_low_pfn << PAGE_SHIFT;
-
-		if (ramdisk_end <= end_of_lowmem) {
-			reserve_bootmem(ramdisk_image, ramdisk_size);
-			initrd_start = ramdisk_image + PAGE_OFFSET;
-			initrd_end = initrd_start+ramdisk_size;
-		} else {
-			printk(KERN_ERR "initrd extends beyond end of memory "
-			       "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
-			       ramdisk_end, end_of_lowmem);
-			initrd_start = 0;
-		}
-	}
+	reserve_initrd();
 #endif
+	numa_kva_reserve();
 	reserve_crashkernel();
 }
 
@@ -713,15 +791,19 @@ void __init setup_arch(char **cmdline_p)
 	 * NOTE: at this point the bootmem allocator is fully available.
 	 */
 
+#ifdef CONFIG_BLK_DEV_INITRD
+	relocate_initrd();
+#endif
+
 	paravirt_post_allocator_init();
 
 	dmi_scan_machine();
 
-	io_delay_init();;
+	io_delay_init();
 
 #ifdef CONFIG_X86_GENERICARCH
 	generic_apic_probe();
-#endif	
+#endif
 	if (efi_enabled)
 		efi_map_memmap();
 
diff --git a/arch/x86/mm/discontig_32.c b/arch/x86/mm/discontig_32.c
index 13a474d3c6e9..88a7499e8e48 100644
--- a/arch/x86/mm/discontig_32.c
+++ b/arch/x86/mm/discontig_32.c
@@ -288,8 +288,8 @@ unsigned long __init setup_memory(void)
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	/* Numa kva area is below the initrd */
-	if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image)
-		kva_start_pfn = PFN_DOWN(boot_params.hdr.ramdisk_image)
+	if (initrd_start)
+		kva_start_pfn = PFN_DOWN(initrd_start - PAGE_OFFSET)
 			- kva_pages;
 #endif
 	kva_start_pfn -= kva_start_pfn & (PTRS_PER_PTE-1);
-- 
cgit v1.2.3-59-g8ed1b


From b32ef636a59aad12f9f9b5dc34c93222842c58ba Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:32:51 +0100
Subject: percpu: use a kconfig variable to signal arch specific percpu setup

The use of the __GENERIC_PERCPU is a bit problematic since arches
may want to run their own percpu setup while using the generic
percpu definitions. Replace it through a kconfig variable.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/ia64/Kconfig            | 3 +++
 arch/powerpc/Kconfig         | 3 +++
 arch/sparc64/Kconfig         | 3 +++
 arch/x86/Kconfig             | 3 +++
 include/asm-generic/percpu.h | 1 -
 include/asm-s390/percpu.h    | 2 --
 include/asm-x86/percpu_32.h  | 2 --
 init/main.c                  | 4 ++--
 8 files changed, 14 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 4a81b7fb191a..5a41e75ae1fe 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -80,6 +80,9 @@ config GENERIC_TIME_VSYSCALL
 	bool
 	default y
 
+config ARCH_SETS_UP_PER_CPU_AREA
+	def_bool y
+
 config DMI
 	bool
 	default y
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c17a194beb0e..fb85f6b72fcf 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -42,6 +42,9 @@ config GENERIC_HARDIRQS
 	bool
 	default y
 
+config ARCH_SETS_UP_PER_CPU_AREA
+	def_bool PPC64
+
 config IRQ_PER_CPU
 	bool
 	default y
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index 1e25bce0366d..26f5791baa33 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -66,6 +66,9 @@ config AUDIT_ARCH
 	bool
 	default y
 
+config ARCH_SETS_UP_PER_CPU_AREA
+	def_bool y
+
 config ARCH_NO_VIRT_TO_BUS
 	def_bool y
 
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1de28e850aa4..dc80a9f1f303 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -97,6 +97,9 @@ config GENERIC_TIME_VSYSCALL
 	bool
 	default X86_64
 
+config ARCH_SETS_UP_PER_CPU_AREA
+	def_bool X86_64
+
 config ARCH_SUPPORTS_OPROFILE
 	bool
 	default y
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index d85172e9ed45..b5e53b9ab1f7 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -3,7 +3,6 @@
 #include <linux/compiler.h>
 #include <linux/threads.h>
 
-#define __GENERIC_PER_CPU
 #ifdef CONFIG_SMP
 
 extern unsigned long __per_cpu_offset[NR_CPUS];
diff --git a/include/asm-s390/percpu.h b/include/asm-s390/percpu.h
index 545857e64443..f94d0d3cdb2f 100644
--- a/include/asm-s390/percpu.h
+++ b/include/asm-s390/percpu.h
@@ -4,8 +4,6 @@
 #include <linux/compiler.h>
 #include <asm/lowcore.h>
 
-#define __GENERIC_PER_CPU
-
 /*
  * s390 uses its own implementation for per cpu data, the offset of
  * the cpu local data area is cached in the cpu's lowcore memory.
diff --git a/include/asm-x86/percpu_32.h b/include/asm-x86/percpu_32.h
index a7ebd436f3cc..3949586bf94e 100644
--- a/include/asm-x86/percpu_32.h
+++ b/include/asm-x86/percpu_32.h
@@ -41,8 +41,6 @@
  *    PER_CPU(cpu_gdt_descr, %ebx)
  */
 #ifdef CONFIG_SMP
-/* Same as generic implementation except for optimized local access. */
-#define __GENERIC_PER_CPU
 
 /* This is used for other cpus to find our section. */
 extern unsigned long __per_cpu_offset[];
diff --git a/init/main.c b/init/main.c
index f287ca5862b9..3f8aba291ed3 100644
--- a/init/main.c
+++ b/init/main.c
@@ -363,7 +363,7 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { }
 
 #else
 
-#ifdef __GENERIC_PER_CPU
+#ifndef CONFIG_ARCH_SETS_UP_PER_CPU_AREA
 unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
 
 EXPORT_SYMBOL(__per_cpu_offset);
@@ -384,7 +384,7 @@ static void __init setup_per_cpu_areas(void)
 		ptr += size;
 	}
 }
-#endif /* !__GENERIC_PER_CPU */
+#endif /* CONFIG_ARCH_SETS_UP_CPU_AREA */
 
 /* Called by boot processor to activate the rest. */
 static void __init smp_init(void)
-- 
cgit v1.2.3-59-g8ed1b


From acdac87202a408133ee8f7985076de9d2e0dc5ab Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:32:52 +0100
Subject: percpu: make the asm-generic/percpu.h more "generic"

- add support for PER_CPU_ATTRIBUTES

- fix generic smp percpu_modcopy to use per_cpu_offset() macro.

Add the ability to use generic/percpu even if the arch needs to override
several aspects of its operations. This will enable the use of generic
percpu.h for all arches.

An arch may define:

__per_cpu_offset	Do not use the generic pointer array. Arch must
			define per_cpu_offset(cpu) (used by x86_64, s390).

__my_cpu_offset		Can be defined to provide an optimized way to determine
			the offset for variables of the currently executing
			processor. Used by ia64, x86_64, x86_32, sparc64, s/390.

SHIFT_PTR(ptr, offset)	If an arch defines it then special handling
			of pointer arithmentic may be implemented. Used
			by s/390.

(Some of these special percpu arch implementations may be later consolidated
so that there are less cases to deal with.)

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/ia64/kernel/module.c    |  2 +-
 include/asm-generic/percpu.h | 74 +++++++++++++++++++++++++++++++++++++-------
 2 files changed, 64 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index 196287928bae..e699eb6c44be 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -947,7 +947,7 @@ percpu_modcopy (void *pcpudst, const void *src, unsigned long size)
 {
 	unsigned int i;
 	for_each_possible_cpu(i) {
-		memcpy(pcpudst + __per_cpu_offset[i], src, size);
+		memcpy(pcpudst + per_cpu_offset(i), src, size);
 	}
 }
 #endif /* CONFIG_SMP */
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index e038f13594e5..c41b1a731129 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -3,35 +3,87 @@
 #include <linux/compiler.h>
 #include <linux/threads.h>
 
+/*
+ * Determine the real variable name from the name visible in the
+ * kernel sources.
+ */
+#define per_cpu_var(var) per_cpu__##var
+
 #ifdef CONFIG_SMP
 
+/*
+ * per_cpu_offset() is the offset that has to be added to a
+ * percpu variable to get to the instance for a certain processor.
+ *
+ * Most arches use the __per_cpu_offset array for those offsets but
+ * some arches have their own ways of determining the offset (x86_64, s390).
+ */
+#ifndef __per_cpu_offset
 extern unsigned long __per_cpu_offset[NR_CPUS];
 
 #define per_cpu_offset(x) (__per_cpu_offset[x])
+#endif
+
+/*
+ * Determine the offset for the currently active processor.
+ * An arch may define __my_cpu_offset to provide a more effective
+ * means of obtaining the offset to the per cpu variables of the
+ * current processor.
+ */
+#ifndef __my_cpu_offset
+#define __my_cpu_offset per_cpu_offset(raw_smp_processor_id())
+#define my_cpu_offset per_cpu_offset(smp_processor_id())
+#else
+#define my_cpu_offset __my_cpu_offset
+#endif
+
+/*
+ * Add a offset to a pointer but keep the pointer as is.
+ *
+ * Only S390 provides its own means of moving the pointer.
+ */
+#ifndef SHIFT_PERCPU_PTR
+#define SHIFT_PERCPU_PTR(__p, __offset)	RELOC_HIDE((__p), (__offset))
+#endif
 
-/* var is in discarded region: offset to particular copy we want */
-#define per_cpu(var, cpu) (*({				\
-	extern int simple_identifier_##var(void);	\
-	RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu]); }))
-#define __get_cpu_var(var) per_cpu(var, smp_processor_id())
-#define __raw_get_cpu_var(var) per_cpu(var, raw_smp_processor_id())
+/*
+ * A percpu variable may point to a discarded reghions. The following are
+ * established ways to produce a usable pointer from the percpu variable
+ * offset.
+ */
+#define per_cpu(var, cpu) \
+	(*SHIFT_PERCPU_PTR(&per_cpu_var(var), per_cpu_offset(cpu)))
+#define __get_cpu_var(var) \
+	(*SHIFT_PERCPU_PTR(&per_cpu_var(var), my_cpu_offset))
+#define __raw_get_cpu_var(var) \
+	(*SHIFT_PERCPU_PTR(&per_cpu_var(var), __my_cpu_offset))
+
+
+#ifdef CONFIG_ARCH_SETS_UP_PER_CPU_AREA
+extern void setup_per_cpu_areas(void);
+#endif
 
 /* A macro to avoid #include hell... */
 #define percpu_modcopy(pcpudst, src, size)			\
 do {								\
 	unsigned int __i;					\
 	for_each_possible_cpu(__i)				\
-		memcpy((pcpudst)+__per_cpu_offset[__i],		\
+		memcpy((pcpudst)+per_cpu_offset(__i),		\
 		       (src), (size));				\
 } while (0)
 #else /* ! SMP */
 
-#define per_cpu(var, cpu)			(*((void)(cpu), &per_cpu__##var))
-#define __get_cpu_var(var)			per_cpu__##var
-#define __raw_get_cpu_var(var)			per_cpu__##var
+#define per_cpu(var, cpu)			(*((void)(cpu), &per_cpu_var(var)))
+#define __get_cpu_var(var)			per_cpu_var(var)
+#define __raw_get_cpu_var(var)			per_cpu_var(var)
 
 #endif	/* SMP */
 
-#define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name
+#ifndef PER_CPU_ATTRIBUTES
+#define PER_CPU_ATTRIBUTES
+#endif
+
+#define DECLARE_PER_CPU(type, name) extern PER_CPU_ATTRIBUTES \
+					__typeof__(type) per_cpu_var(name)
 
 #endif /* _ASM_GENERIC_PERCPU_H_ */
-- 
cgit v1.2.3-59-g8ed1b


From 8a19da7b7f16d8360e39035f6ab96686e835522b Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:32:53 +0100
Subject: x86: clean up arch/x86/mm/fault_64.c

clean up arch/x86/mm/fault_64.c a bit.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_64.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index dcf430bb62ee..058b04cb96d4 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -39,10 +39,10 @@
  *	bit 3 == 1 means use of reserved bit detected
  *	bit 4 == 1 means fault was an instruction fetch
  */
-#define PF_PROT	(1<<0)
+#define PF_PROT		(1<<0)
 #define PF_WRITE	(1<<1)
-#define PF_USER	(1<<2)
-#define PF_RSVD	(1<<3)
+#define PF_USER		(1<<2)
+#define PF_RSVD		(1<<3)
 #define PF_INSTR	(1<<4)
 
 static inline int notify_page_fault(struct pt_regs *regs)
-- 
cgit v1.2.3-59-g8ed1b


From 4fc2fba804cae404d2665e23b8cbd46d5f63a07e Mon Sep 17 00:00:00 2001
From: Pavel Machek <pavel@ucw.cz>
Date: Wed, 30 Jan 2008 13:32:54 +0100
Subject: x86: unify arch/x86/kernel/acpi/sleep*.c

Unify arch/x86/kernel/acpi/sleep*.c

Pretty trivial unification; when two functions differed, it was
usually in error handling, and better of the two was picked up.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Looks-okay-to: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/acpi/Makefile   |   2 +-
 arch/x86/kernel/acpi/sleep.c    |  87 ++++++++++++++++++++++++++++++
 arch/x86/kernel/acpi/sleep_32.c |  70 ------------------------
 arch/x86/kernel/acpi/sleep_64.c | 117 ----------------------------------------
 4 files changed, 88 insertions(+), 188 deletions(-)
 create mode 100644 arch/x86/kernel/acpi/sleep.c
 delete mode 100644 arch/x86/kernel/acpi/sleep_64.c

(limited to 'arch')

diff --git a/arch/x86/kernel/acpi/Makefile b/arch/x86/kernel/acpi/Makefile
index 1351c3982ee4..19d3d6e9d09b 100644
--- a/arch/x86/kernel/acpi/Makefile
+++ b/arch/x86/kernel/acpi/Makefile
@@ -1,5 +1,5 @@
 obj-$(CONFIG_ACPI)		+= boot.o
-obj-$(CONFIG_ACPI_SLEEP)	+= sleep_$(BITS).o wakeup_$(BITS).o
+obj-$(CONFIG_ACPI_SLEEP)	+= sleep.o wakeup_$(BITS).o
 
 ifneq ($(CONFIG_ACPI_PROCESSOR),)
 obj-y				+= cstate.o processor.o
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
new file mode 100644
index 000000000000..6bc815cd8cb3
--- /dev/null
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -0,0 +1,87 @@
+/*
+ * sleep.c - x86-specific ACPI sleep support.
+ *
+ *  Copyright (C) 2001-2003 Patrick Mochel
+ *  Copyright (C) 2001-2003 Pavel Machek <pavel@suse.cz>
+ */
+
+#include <linux/acpi.h>
+#include <linux/bootmem.h>
+#include <linux/dmi.h>
+#include <linux/cpumask.h>
+
+#include <asm/smp.h>
+
+/* address in low memory of the wakeup routine. */
+unsigned long acpi_wakeup_address = 0;
+unsigned long acpi_realmode_flags;
+extern char wakeup_start, wakeup_end;
+
+extern unsigned long acpi_copy_wakeup_routine(unsigned long);
+
+/**
+ * acpi_save_state_mem - save kernel state
+ *
+ * Create an identity mapped page table and copy the wakeup routine to
+ * low memory.
+ */
+int acpi_save_state_mem(void)
+{
+	if (!acpi_wakeup_address) {
+		printk(KERN_ERR "Could not allocate memory during boot, S3 disabled\n");
+		return -ENOMEM;
+	}
+	memcpy((void *)acpi_wakeup_address, &wakeup_start,
+	       &wakeup_end - &wakeup_start);
+	acpi_copy_wakeup_routine(acpi_wakeup_address);
+
+	return 0;
+}
+
+/*
+ * acpi_restore_state - undo effects of acpi_save_state_mem
+ */
+void acpi_restore_state_mem(void)
+{
+}
+
+
+/**
+ * acpi_reserve_bootmem - do _very_ early ACPI initialisation
+ *
+ * We allocate a page from the first 1MB of memory for the wakeup
+ * routine for when we come back from a sleep state. The
+ * runtime allocator allows specification of <16MB pages, but not
+ * <1MB pages.
+ */
+void __init acpi_reserve_bootmem(void)
+{
+	if ((&wakeup_end - &wakeup_start) > PAGE_SIZE*2) {
+		printk(KERN_ERR
+		       "ACPI: Wakeup code way too big, S3 disabled.\n");
+		return;
+	}
+
+	acpi_wakeup_address = (unsigned long)alloc_bootmem_low(PAGE_SIZE*2);
+	if (!acpi_wakeup_address)
+		printk(KERN_ERR "ACPI: Cannot allocate lowmem, S3 disabled.\n");
+}
+
+
+static int __init acpi_sleep_setup(char *str)
+{
+	while ((str != NULL) && (*str != '\0')) {
+		if (strncmp(str, "s3_bios", 7) == 0)
+			acpi_realmode_flags |= 1;
+		if (strncmp(str, "s3_mode", 7) == 0)
+			acpi_realmode_flags |= 2;
+		if (strncmp(str, "s3_beep", 7) == 0)
+			acpi_realmode_flags |= 4;
+		str = strchr(str, ',');
+		if (str != NULL)
+			str += strspn(str, ", \t");
+	}
+	return 1;
+}
+
+__setup("acpi_sleep=", acpi_sleep_setup);
diff --git a/arch/x86/kernel/acpi/sleep_32.c b/arch/x86/kernel/acpi/sleep_32.c
index 09f820d920b1..63fe5525e026 100644
--- a/arch/x86/kernel/acpi/sleep_32.c
+++ b/arch/x86/kernel/acpi/sleep_32.c
@@ -12,76 +12,6 @@
 
 #include <asm/smp.h>
 
-/* address in low memory of the wakeup routine. */
-unsigned long acpi_wakeup_address = 0;
-unsigned long acpi_realmode_flags;
-extern char wakeup_start, wakeup_end;
-
-extern unsigned long acpi_copy_wakeup_routine(unsigned long);
-
-/**
- * acpi_save_state_mem - save kernel state
- *
- * Create an identity mapped page table and copy the wakeup routine to
- * low memory.
- */
-int acpi_save_state_mem(void)
-{
-	if (!acpi_wakeup_address)
-		return 1;
-	memcpy((void *)acpi_wakeup_address, &wakeup_start,
-	       &wakeup_end - &wakeup_start);
-	acpi_copy_wakeup_routine(acpi_wakeup_address);
-
-	return 0;
-}
-
-/*
- * acpi_restore_state - undo effects of acpi_save_state_mem
- */
-void acpi_restore_state_mem(void)
-{
-}
-
-/**
- * acpi_reserve_bootmem - do _very_ early ACPI initialisation
- *
- * We allocate a page from the first 1MB of memory for the wakeup
- * routine for when we come back from a sleep state. The
- * runtime allocator allows specification of <16MB pages, but not
- * <1MB pages.
- */
-void __init acpi_reserve_bootmem(void)
-{
-	if ((&wakeup_end - &wakeup_start) > PAGE_SIZE) {
-		printk(KERN_ERR
-		       "ACPI: Wakeup code way too big, S3 disabled.\n");
-		return;
-	}
-
-	acpi_wakeup_address = (unsigned long)alloc_bootmem_low(PAGE_SIZE);
-	if (!acpi_wakeup_address)
-		printk(KERN_ERR "ACPI: Cannot allocate lowmem, S3 disabled.\n");
-}
-
-static int __init acpi_sleep_setup(char *str)
-{
-	while ((str != NULL) && (*str != '\0')) {
-		if (strncmp(str, "s3_bios", 7) == 0)
-			acpi_realmode_flags |= 1;
-		if (strncmp(str, "s3_mode", 7) == 0)
-			acpi_realmode_flags |= 2;
-		if (strncmp(str, "s3_beep", 7) == 0)
-			acpi_realmode_flags |= 4;
-		str = strchr(str, ',');
-		if (str != NULL)
-			str += strspn(str, ", \t");
-	}
-	return 1;
-}
-
-__setup("acpi_sleep=", acpi_sleep_setup);
-
 /* Ouch, we want to delete this. We already have better version in userspace, in
    s2ram from suspend.sf.net project */
 static __init int reset_videomode_after_s3(const struct dmi_system_id *d)
diff --git a/arch/x86/kernel/acpi/sleep_64.c b/arch/x86/kernel/acpi/sleep_64.c
deleted file mode 100644
index da42de261ba8..000000000000
--- a/arch/x86/kernel/acpi/sleep_64.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- *  acpi.c - Architecture-Specific Low-Level ACPI Support
- *
- *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
- *  Copyright (C) 2001 Jun Nakajima <jun.nakajima@intel.com>
- *  Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
- *  Copyright (C) 2002 Andi Kleen, SuSE Labs (x86-64 port)
- *  Copyright (C) 2003 Pavel Machek, SuSE Labs
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/stddef.h>
-#include <linux/slab.h>
-#include <linux/pci.h>
-#include <linux/bootmem.h>
-#include <linux/acpi.h>
-#include <linux/cpumask.h>
-
-#include <asm/mpspec.h>
-#include <asm/io.h>
-#include <asm/apic.h>
-#include <asm/apicdef.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/io_apic.h>
-#include <asm/proto.h>
-#include <asm/tlbflush.h>
-
-/* --------------------------------------------------------------------------
-                              Low-Level Sleep Support
-   -------------------------------------------------------------------------- */
-
-/* address in low memory of the wakeup routine. */
-unsigned long acpi_wakeup_address = 0;
-unsigned long acpi_realmode_flags;
-extern char wakeup_start, wakeup_end;
-
-extern unsigned long acpi_copy_wakeup_routine(unsigned long);
-
-/**
- * acpi_save_state_mem - save kernel state
- *
- * Create an identity mapped page table and copy the wakeup routine to
- * low memory.
- */
-int acpi_save_state_mem(void)
-{
-	memcpy((void *)acpi_wakeup_address, &wakeup_start,
-	       &wakeup_end - &wakeup_start);
-	acpi_copy_wakeup_routine(acpi_wakeup_address);
-
-	return 0;
-}
-
-/*
- * acpi_restore_state
- */
-void acpi_restore_state_mem(void)
-{
-}
-
-/**
- * acpi_reserve_bootmem - do _very_ early ACPI initialisation
- *
- * We allocate a page in low memory for the wakeup
- * routine for when we come back from a sleep state. The
- * runtime allocator allows specification of <16M pages, but not
- * <1M pages.
- */
-void __init acpi_reserve_bootmem(void)
-{
-	acpi_wakeup_address = (unsigned long)alloc_bootmem_low(PAGE_SIZE*2);
-	if ((&wakeup_end - &wakeup_start) > (PAGE_SIZE*2))
-		printk(KERN_CRIT
-		       "ACPI: Wakeup code way too big, will crash on attempt"
-		       " to suspend\n");
-}
-
-static int __init acpi_sleep_setup(char *str)
-{
-	while ((str != NULL) && (*str != '\0')) {
-		if (strncmp(str, "s3_bios", 7) == 0)
-			acpi_realmode_flags |= 1;
-		if (strncmp(str, "s3_mode", 7) == 0)
-			acpi_realmode_flags |= 2;
-		if (strncmp(str, "s3_beep", 7) == 0)
-			acpi_realmode_flags |= 4;
-		str = strchr(str, ',');
-		if (str != NULL)
-			str += strspn(str, ", \t");
-	}
-	return 1;
-}
-
-__setup("acpi_sleep=", acpi_sleep_setup);
-
-- 
cgit v1.2.3-59-g8ed1b


From 87e8407f9ad2a2df901c4b690ab0a2bf0fb168c5 Mon Sep 17 00:00:00 2001
From: Markus Metzger <markus.t.metzger@intel.com>
Date: Wed, 30 Jan 2008 13:32:54 +0100
Subject: x86, ptrace: add bts_struct size to status command

Return the size of bts_struct in the PTRACE_BTS_STATUS command.
Change types to u32.

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/ptrace.c     |  2 ++
 include/asm-x86/ptrace-abi.h | 11 ++++++++---
 2 files changed, 10 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index e19a91db9b35..96286df1bb81 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -787,6 +787,8 @@ static int ptrace_bts_status(struct task_struct *child,
 			cfg.flags |= PTRACE_BTS_O_SCHED;
 	}
 
+	cfg.bts_size = sizeof(struct bts_struct);
+
 	if (copy_to_user(ucfg, &cfg, sizeof(cfg)))
 		return -EFAULT;
 
diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h
index 08a12b790a77..81a8ee4c55fc 100644
--- a/include/asm-x86/ptrace-abi.h
+++ b/include/asm-x86/ptrace-abi.h
@@ -81,16 +81,21 @@
 #define PTRACE_SINGLEBLOCK	33	/* resume execution until next branch */
 
 #ifndef __ASSEMBLY__
+
+#include <asm/types.h>
+
 /* configuration/status structure used in PTRACE_BTS_CONFIG and
    PTRACE_BTS_STATUS commands.
 */
 struct ptrace_bts_config {
 	/* requested or actual size of BTS buffer in bytes */
-	unsigned int size;
+	u32 size;
 	/* bitmask of below flags */
-	unsigned int flags;
+	u32 flags;
 	/* buffer overflow signal */
-	unsigned int signal;
+	u32 signal;
+	/* actual size of bts_struct in bytes */
+	u32 bts_size;
 };
 #endif
 
-- 
cgit v1.2.3-59-g8ed1b


From bac4894dfa9c75c297b905e2ea88caaa5768f1e2 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mel@csn.ul.ie>
Date: Wed, 30 Jan 2008 13:32:54 +0100
Subject: x86: make NUMA work on 32-bit again

On 32-bit NUMA, the memmap representing struct pages on each node is
allocated from node-local memory if possible. As only node-0 has memory from
ZONE_NORMAL, the memmap must be mapped into low memory. This is done by
reserving space in the Kernel Virtual Area (KVA) for the memmap belonging
to other nodes by taking pages from the end of ZONE_NORMAL and remapping
the other nodes memmap into those virtual addresses. The node boundaries
are then adjusted so that the region of pages is not used and it is marked
as reserved in the bootmem allocator.

This reserved portion of the KVA is PMD aligned althought
strictly speaking that requirement could be lifted (see thread at
http://lkml.org/lkml/2007/8/24/220). The problem is that when aligned, there
may be a portion of ZONE_NORMAL at the end that is not used for memmap and
does not have an initialised memmap nor is it marked reserved in the bootmem
allocator. Later in the boot process, these pages are freed and a storm of
Bad page state messages result.

This patch marks these pages reserved that are wasted due to alignment
in the bootmem allocator so they are not accidently freed. It is worth
noting that memory from node-0 is wasted where it could have been put into
ZONE_HIGHMEM on NUMA machines. Worse, the KVA is always reserved from the
location of real memory even when there is plenty of spare virtual address
space.

This patch also makes sure that reserve_bootmem() is not called with a
0-length size in numa_kva_reserve().  When this happens, it usually means
that a kernel built for Summit is being booted on a normal machine. The
resulting BUG_ON() is misleading so it is caught here.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/discontig_32.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/discontig_32.c b/arch/x86/mm/discontig_32.c
index 88a7499e8e48..9f1d02cfde37 100644
--- a/arch/x86/mm/discontig_32.c
+++ b/arch/x86/mm/discontig_32.c
@@ -268,6 +268,7 @@ unsigned long __init setup_memory(void)
 {
 	int nid;
 	unsigned long system_start_pfn, system_max_low_pfn;
+	unsigned long wasted_pages;
 
 	/*
 	 * When mapping a NUMA machine we allocate the node_mem_map arrays
@@ -292,7 +293,14 @@ unsigned long __init setup_memory(void)
 		kva_start_pfn = PFN_DOWN(initrd_start - PAGE_OFFSET)
 			- kva_pages;
 #endif
-	kva_start_pfn -= kva_start_pfn & (PTRS_PER_PTE-1);
+
+	/*
+	 * We waste pages past at the end of the KVA for no good reason other
+	 * than how it is located. This is bad.
+	 */
+	wasted_pages = kva_start_pfn & (PTRS_PER_PTE-1);
+	kva_start_pfn -= wasted_pages;
+	kva_pages += wasted_pages;
 
 	system_max_low_pfn = max_low_pfn = find_max_low_pfn();
 	printk("kva_start_pfn ~ %ld find_max_low_pfn() ~ %ld\n",
@@ -345,7 +353,8 @@ unsigned long __init setup_memory(void)
 
 void __init numa_kva_reserve(void)
 {
-	reserve_bootmem(PFN_PHYS(kva_start_pfn),PFN_PHYS(kva_pages));
+	if (kva_pages)
+		reserve_bootmem(PFN_PHYS(kva_start_pfn), PFN_PHYS(kva_pages));
 }
 
 void __init zone_sizes_init(void)
-- 
cgit v1.2.3-59-g8ed1b


From 7375931a27bbe687e03ae3c28178920b0c66a87d Mon Sep 17 00:00:00 2001
From: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Date: Wed, 30 Jan 2008 13:32:54 +0100
Subject: x86: coding style fixes in arch/x86/ia32/audit.c

Fix one error reported by checkpatch,
it now reports:

total: 0 errors, 0 warnings, 42 lines checked

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/ia32/audit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/ia32/audit.c b/arch/x86/ia32/audit.c
index 91b7b5922dfa..5d7b381da692 100644
--- a/arch/x86/ia32/audit.c
+++ b/arch/x86/ia32/audit.c
@@ -27,7 +27,7 @@ unsigned ia32_signal_class[] = {
 
 int ia32_classify_syscall(unsigned syscall)
 {
-	switch(syscall) {
+	switch (syscall) {
 	case __NR_open:
 		return 2;
 	case __NR_openat:
-- 
cgit v1.2.3-59-g8ed1b


From 925596a017bbd045ff711b778256f459e50a1192 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:32:55 +0100
Subject: x86: avoid name conflict for Voyager leave_mm

Avoid a conflict between Voyager's leave_mm and asm-x86/mmu.h's leave_mm.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mach-voyager/voyager_smp.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index 751777241881..dffa786f61fe 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -808,7 +808,7 @@ static DEFINE_SPINLOCK(tlbstate_lock);
  * We need to reload %cr3 since the page tables may be going
  * away from under us..
  */
-static inline void leave_mm(unsigned long cpu)
+static inline void voyager_leave_mm(unsigned long cpu)
 {
 	if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK)
 		BUG();
@@ -838,7 +838,7 @@ static void smp_invalidate_interrupt(void)
 			else
 				__flush_tlb_one(flush_va);
 		} else
-			leave_mm(cpu);
+			voyager_leave_mm(cpu);
 	}
 	smp_mb__before_clear_bit();
 	clear_bit(cpu, &smp_invalidate_needed);
@@ -919,7 +919,7 @@ void flush_tlb_mm(struct mm_struct *mm)
 		if (current->mm)
 			local_flush_tlb();
 		else
-			leave_mm(smp_processor_id());
+			voyager_leave_mm(smp_processor_id());
 	}
 	if (cpu_mask)
 		voyager_flush_tlb_others(cpu_mask, mm, TLB_FLUSH_ALL);
@@ -939,7 +939,7 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
 		if (current->mm)
 			__flush_tlb_one(va);
 		else
-			leave_mm(smp_processor_id());
+			voyager_leave_mm(smp_processor_id());
 	}
 
 	if (cpu_mask)
@@ -1155,7 +1155,7 @@ static void do_flush_tlb_all(void *info)
 
 	__flush_tlb_all();
 	if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_LAZY)
-		leave_mm(cpu);
+		voyager_leave_mm(cpu);
 }
 
 /* flush the TLB of every active CPU in the system */
-- 
cgit v1.2.3-59-g8ed1b


From 6fdc05d4794056e0b98901646c4b68c60a01d5eb Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:32:57 +0100
Subject: x86: unify pgtable accessors which use

Make users of supported_pte_mask common.  This has the side-effect of
introducing the variable for 32-bit non-PAE, but I think its a pretty
small cost to simplify the code.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_32.c            |  5 +++--
 include/asm-x86/pgtable-2level.h |  2 --
 include/asm-x86/pgtable-3level.h | 14 --------------
 include/asm-x86/pgtable.h        | 14 ++++++++++++++
 include/asm-x86/pgtable_64.h     | 18 ------------------
 5 files changed, 17 insertions(+), 36 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 29130970c193..04332c09ad1d 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -478,11 +478,12 @@ void zap_low_mappings (void)
 
 int nx_enabled = 0;
 
+pteval_t __supported_pte_mask __read_mostly = ~_PAGE_NX;
+EXPORT_SYMBOL_GPL(__supported_pte_mask);
+
 #ifdef CONFIG_X86_PAE
 
 static int disable_nx __initdata = 0;
-u64 __supported_pte_mask __read_mostly = ~_PAGE_NX;
-EXPORT_SYMBOL_GPL(__supported_pte_mask);
 
 /*
  * noexec = on|off
diff --git a/include/asm-x86/pgtable-2level.h b/include/asm-x86/pgtable-2level.h
index 84b03cf56a79..d3171c0cb157 100644
--- a/include/asm-x86/pgtable-2level.h
+++ b/include/asm-x86/pgtable-2level.h
@@ -53,8 +53,6 @@ static inline pte_t native_ptep_get_and_clear(pte_t *xp)
 #define pte_page(x)		pfn_to_page(pte_pfn(x))
 #define pte_none(x)		(!(x).pte_low)
 #define pte_pfn(x)		(pte_val(x) >> PAGE_SHIFT)
-#define pfn_pte(pfn, prot)	__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
-#define pfn_pmd(pfn, prot)	__pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
 
 /*
  * All present pages are kernel-executable:
diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h
index 9816346f7df6..61a7d0029f60 100644
--- a/include/asm-x86/pgtable-3level.h
+++ b/include/asm-x86/pgtable-3level.h
@@ -158,20 +158,6 @@ static inline unsigned long pte_pfn(pte_t pte)
 	return (pte_val(pte) & ~_PAGE_NX) >> PAGE_SHIFT;
 }
 
-extern unsigned long long __supported_pte_mask;
-
-static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
-{
-	return __pte((((unsigned long long)page_nr << PAGE_SHIFT) |
-		      pgprot_val(pgprot)) & __supported_pte_mask);
-}
-
-static inline pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot)
-{
-	return __pmd((((unsigned long long)page_nr << PAGE_SHIFT) |
-		      pgprot_val(pgprot)) & __supported_pte_mask);
-}
-
 /*
  * Bits 0, 6 and 7 are taken in the low part of the pte,
  * put the 32 bits of offset into the high part.
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 4c03ff2246fd..b29a122fc1ff 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -141,6 +141,20 @@ static inline pte_t pte_mkwrite(pte_t pte)	{ return __pte(pte_val(pte) | _PAGE_R
 static inline pte_t pte_mkhuge(pte_t pte)	{ return __pte(pte_val(pte) | _PAGE_PSE); }
 static inline pte_t pte_clrhuge(pte_t pte)	{ return __pte(pte_val(pte) & ~_PAGE_PSE); }
 
+extern pteval_t __supported_pte_mask;
+
+static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
+{
+	return __pte((((phys_addr_t)page_nr << PAGE_SHIFT) |
+		      pgprot_val(pgprot)) & __supported_pte_mask);
+}
+
+static inline pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot)
+{
+	return __pmd((((phys_addr_t)page_nr << PAGE_SHIFT) |
+		      pgprot_val(pgprot)) & __supported_pte_mask);
+}
+
 #endif	/* __ASSEMBLY__ */
 
 #ifdef CONFIG_X86_32
diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index 84f47f9d7896..57e4ebe0f7fc 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -17,7 +17,6 @@ extern pud_t level3_kernel_pgt[512];
 extern pud_t level3_ident_pgt[512];
 extern pmd_t level2_kernel_pgt[512];
 extern pgd_t init_level4_pgt[];
-extern unsigned long __supported_pte_mask;
 
 #define swapper_pg_dir init_level4_pgt
 
@@ -165,14 +164,6 @@ static inline unsigned long pmd_bad(pmd_t pmd)
 #define pte_page(x)	pfn_to_page(pte_pfn(x))
 #define pte_pfn(x)  ((pte_val(x) & __PHYSICAL_MASK) >> PAGE_SHIFT)
 
-static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
-{
-	pte_t pte;
-	pte_val(pte) = (page_nr << PAGE_SHIFT);
-	pte_val(pte) |= pgprot_val(pgprot);
-	pte_val(pte) &= __supported_pte_mask;
-	return pte;
-}
 struct vm_area_struct;
 
 static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
@@ -239,15 +230,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 /* page, protection -> pte */
 #define mk_pte(page, pgprot)	pfn_pte(page_to_pfn(page), (pgprot))
  
-/* Change flags of a PTE */
-static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
-{ 
-	pte_val(pte) &= _PAGE_CHG_MASK;
-	pte_val(pte) |= pgprot_val(newprot);
-	pte_val(pte) &= __supported_pte_mask;
-       return pte; 
-}
-
 #define pte_index(address) \
 		(((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
 #define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_vaddr(*(dir)) + \
-- 
cgit v1.2.3-59-g8ed1b


From c8e5393ab38564d2f45b560a2f95bc8f9ff6f823 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:32:57 +0100
Subject: x86: page.h: make pte_t a union to always include

Make sure pte_t, whatever its definition, has a pte element with type
pteval_t.  This allows common code to access it without needing to be
specifically parameterised on what pagetable mode we're compiling for.
For 32-bit, this means that pte_t becomes a union with "pte" and "{
pte_low, pte_high }" (PAE) or just "pte_low" (non-PAE).

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/xen/mmu.c               |  4 +---
 include/asm-x86/page.h           | 10 ++++++++++
 include/asm-x86/page_32.h        | 30 +++++++-----------------------
 include/asm-x86/page_64.h        |  3 ---
 include/asm-x86/paravirt.h       |  2 +-
 include/asm-x86/pgtable-2level.h |  4 ++--
 include/asm-x86/pgtable-3level.h |  4 ++--
 include/asm-x86/pgtable_64.h     |  6 +++---
 include/asm-x86/processor.h      |  1 -
 include/xen/page.h               |  6 +++---
 10 files changed, 29 insertions(+), 41 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 0ac6c5dc49ba..52f392893008 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -244,9 +244,7 @@ pte_t xen_make_pte(unsigned long long pte)
 	if (pte & 1)
 		pte = phys_to_machine(XPADDR(pte)).maddr;
 
-	pte &= ~_PAGE_PCD;
-
-	return (pte_t){ pte, pte >> 32 };
+	return (pte_t){ .pte = pte };
 }
 
 pmd_t xen_make_pmd(unsigned long long pmd)
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h
index 91920565a575..a6495eb5c605 100644
--- a/include/asm-x86/page.h
+++ b/include/asm-x86/page.h
@@ -108,6 +108,16 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
 #include <asm-generic/pgtable-nopmd.h>
 #endif	/* PAGETABLE_LEVELS >= 3 */
 
+static inline pte_t native_make_pte(pteval_t val)
+{
+	return (pte_t) { .pte = val };
+}
+
+static inline pteval_t native_pte_val(pte_t pte)
+{
+	return pte.pte;
+}
+
 #define pgprot_val(x)	((x).pgprot)
 #define __pgprot(x)	((pgprot_t) { (x) } )
 
diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h
index e424bef4395a..11c4b39cada1 100644
--- a/include/asm-x86/page_32.h
+++ b/include/asm-x86/page_32.h
@@ -26,18 +26,12 @@ typedef u64	pgdval_t;
 typedef u64	pgprotval_t;
 typedef u64	phys_addr_t;
 
-typedef struct { unsigned long pte_low, pte_high; } pte_t;
-
-static inline unsigned long long native_pte_val(pte_t pte)
-{
-	return pte.pte_low | ((unsigned long long)pte.pte_high << 32);
-}
-
-static inline pte_t native_make_pte(unsigned long long val)
-{
-	return (pte_t) { .pte_low = val, .pte_high = (val >> 32) } ;
-}
-
+typedef union {
+	struct {
+		unsigned long pte_low, pte_high;
+	};
+	pteval_t pte;
+} pte_t;
 #endif	/* __ASSEMBLY__
  */
 #else  /* !CONFIG_X86_PAE */
@@ -53,19 +47,9 @@ typedef unsigned long	pgdval_t;
 typedef unsigned long	pgprotval_t;
 typedef unsigned long	phys_addr_t;
 
-typedef struct { pteval_t pte_low; } pte_t;
+typedef union { pteval_t pte, pte_low; } pte_t;
 typedef pte_t boot_pte_t;
 
-static inline unsigned long native_pte_val(pte_t pte)
-{
-	return pte.pte_low;
-}
-
-static inline pte_t native_make_pte(unsigned long val)
-{
-	return (pte_t) { .pte_low = val };
-}
-
 #endif	/* __ASSEMBLY__ */
 #endif	/* CONFIG_X86_PAE */
 
diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
index ebf977a809a8..c1ac42d8707f 100644
--- a/include/asm-x86/page_64.h
+++ b/include/asm-x86/page_64.h
@@ -70,9 +70,6 @@ typedef unsigned long	phys_addr_t;
 
 typedef struct { pteval_t pte; } pte_t;
 
-#define native_pte_val(x)	((x).pte)
-#define native_make_pte(x) ((pte_t) { (x) } )
-
 #define vmemmap ((struct page *)VMEMMAP_START)
 
 #endif	/* !__ASSEMBLY__ */
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index b35ed95166e4..24385decbd47 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -922,7 +922,7 @@ static inline pte_t __pte(unsigned long long val)
 	unsigned long long ret = PVOP_CALL2(unsigned long long,
 					    pv_mmu_ops.make_pte,
 					    val, val >> 32);
-	return (pte_t) { ret, ret >> 32 };
+	return (pte_t) { .pte = ret };
 }
 
 static inline pmd_t __pmd(unsigned long long val)
diff --git a/include/asm-x86/pgtable-2level.h b/include/asm-x86/pgtable-2level.h
index d3171c0cb157..f949bb083089 100644
--- a/include/asm-x86/pgtable-2level.h
+++ b/include/asm-x86/pgtable-2level.h
@@ -72,13 +72,13 @@ static inline int pte_exec_kernel(pte_t pte)
 	((((pte).pte_low >> 1) & 0x1f ) + (((pte).pte_low >> 8) << 5 ))
 
 #define pgoff_to_pte(off) \
-	((pte_t) { (((off) & 0x1f) << 1) + (((off) >> 5) << 8) + _PAGE_FILE })
+	((pte_t) { .pte_low = (((off) & 0x1f) << 1) + (((off) >> 5) << 8) + _PAGE_FILE })
 
 /* Encode and de-code a swap entry */
 #define __swp_type(x)			(((x).val >> 1) & 0x1f)
 #define __swp_offset(x)			((x).val >> 8)
 #define __swp_entry(type, offset)	((swp_entry_t) { ((type) << 1) | ((offset) << 8) })
 #define __pte_to_swp_entry(pte)		((swp_entry_t) { (pte).pte_low })
-#define __swp_entry_to_pte(x)		((pte_t) { (x).val })
+#define __swp_entry_to_pte(x)		((pte_t) { .pte = (x).val })
 
 #endif /* _I386_PGTABLE_2LEVEL_H */
diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h
index 61a7d0029f60..3da96f792dd0 100644
--- a/include/asm-x86/pgtable-3level.h
+++ b/include/asm-x86/pgtable-3level.h
@@ -163,7 +163,7 @@ static inline unsigned long pte_pfn(pte_t pte)
  * put the 32 bits of offset into the high part.
  */
 #define pte_to_pgoff(pte) ((pte).pte_high)
-#define pgoff_to_pte(off) ((pte_t) { _PAGE_FILE, (off) })
+#define pgoff_to_pte(off) ((pte_t) { { .pte_low = _PAGE_FILE, .pte_high = (off) } })
 #define PTE_FILE_MAX_BITS       32
 
 /* Encode and de-code a swap entry */
@@ -171,7 +171,7 @@ static inline unsigned long pte_pfn(pte_t pte)
 #define __swp_offset(x)			((x).val >> 5)
 #define __swp_entry(type, offset)	((swp_entry_t){(type) | (offset) << 5})
 #define __pte_to_swp_entry(pte)		((swp_entry_t){ (pte).pte_high })
-#define __swp_entry_to_pte(x)		((pte_t){ 0, (x).val })
+#define __swp_entry_to_pte(x)		((pte_t){ { .pte_high = (x).val } })
 
 #define __pmd_free_tlb(tlb, x)		do { } while (0)
 
diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index 57e4ebe0f7fc..77038d8e9bfd 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -72,7 +72,7 @@ extern unsigned long empty_zero_page[PAGE_SIZE/sizeof(unsigned long)];
 
 static inline void set_pte(pte_t *dst, pte_t val)
 {
-	pte_val(*dst) = pte_val(val);
+	*dst = val;
 } 
 #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
 
@@ -222,7 +222,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #define pmd_pfn(x)  ((pmd_val(x) & __PHYSICAL_MASK) >> PAGE_SHIFT)
 
 #define pte_to_pgoff(pte) ((pte_val(pte) & PHYSICAL_PAGE_MASK) >> PAGE_SHIFT)
-#define pgoff_to_pte(off) ((pte_t) { ((off) << PAGE_SHIFT) | _PAGE_FILE })
+#define pgoff_to_pte(off) ((pte_t) { .pte = ((off) << PAGE_SHIFT) | _PAGE_FILE })
 #define PTE_FILE_MAX_BITS __PHYSICAL_MASK_SHIFT
 
 /* PTE - Level 1 access. */
@@ -264,7 +264,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #define __swp_offset(x)			((x).val >> 8)
 #define __swp_entry(type, offset)	((swp_entry_t) { ((type) << 1) | ((offset) << 8) })
 #define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) })
-#define __swp_entry_to_pte(x)		((pte_t) { (x).val })
+#define __swp_entry_to_pte(x)		((pte_t) { .pte = (x).val })
 
 extern spinlock_t pgd_lock;
 extern struct list_head pgd_list;
diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index cc549bf819a4..e701ac5487e5 100644
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -14,7 +14,6 @@ struct mm_struct;
 #include <asm/vm86.h>
 #include <asm/math_emu.h>
 #include <asm/segment.h>
-#include <asm/page.h>
 #include <asm/types.h>
 #include <asm/sigcontext.h>
 #include <asm/current.h>
diff --git a/include/xen/page.h b/include/xen/page.h
index c0c8fcb27899..031ef22a971e 100644
--- a/include/xen/page.h
+++ b/include/xen/page.h
@@ -156,16 +156,16 @@ static inline pte_t mfn_pte(unsigned long page_nr, pgprot_t pgprot)
 
 static inline unsigned long long pte_val_ma(pte_t x)
 {
-	return ((unsigned long long)x.pte_high << 32) | x.pte_low;
+	return x.pte;
 }
 #define pmd_val_ma(v) ((v).pmd)
 #define pud_val_ma(v) ((v).pgd.pgd)
-#define __pte_ma(x)	((pte_t) { .pte_low = (x), .pte_high = (x)>>32 } )
+#define __pte_ma(x)	((pte_t) { .pte = (x) })
 #define __pmd_ma(x)	((pmd_t) { (x) } )
 #else  /* !X86_PAE */
 #define pte_mfn(_pte) ((_pte).pte_low >> PAGE_SHIFT)
 #define mfn_pte(pfn, prot)	__pte_ma(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
-#define pte_val_ma(x)	((x).pte_low)
+#define pte_val_ma(x)	((x).pte)
 #define pmd_val_ma(v)	((v).pud.pgd.pgd)
 #define __pte_ma(x)	((pte_t) { (x) } )
 #endif	/* CONFIG_X86_PAE */
-- 
cgit v1.2.3-59-g8ed1b


From e33287013585e96180c575288bf1db22bee47b52 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:32:58 +0100
Subject: x86/vmi: fix compilation as a result of pte_t changes

Fix various compilation problems as a result of changing pte_t.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Zachary Amsden <zach@vmware.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/vmi_32.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 10c46419d35d..2ee5d8e0ada5 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -475,7 +475,7 @@ static void vmi_set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep
 static void vmi_set_pmd(pmd_t *pmdp, pmd_t pmdval)
 {
 #ifdef CONFIG_X86_PAE
-	const pte_t pte = { pmdval.pmd, pmdval.pmd >> 32 };
+	const pte_t pte = { .pte = pmdval.pmd };
 	vmi_check_page_type(__pa(pmdp) >> PAGE_SHIFT, VMI_PAGE_PMD);
 #else
 	const pte_t pte = { pmdval.pud.pgd.pgd };
@@ -508,21 +508,21 @@ static void vmi_set_pte_present(struct mm_struct *mm, unsigned long addr, pte_t
 static void vmi_set_pud(pud_t *pudp, pud_t pudval)
 {
 	/* Um, eww */
-	const pte_t pte = { pudval.pgd.pgd, pudval.pgd.pgd >> 32 };
+	const pte_t pte = { .pte = pudval.pgd.pgd };
 	vmi_check_page_type(__pa(pudp) >> PAGE_SHIFT, VMI_PAGE_PGD);
 	vmi_ops.set_pte(pte, (pte_t *)pudp, VMI_PAGE_PDP);
 }
 
 static void vmi_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-	const pte_t pte = { 0 };
+	const pte_t pte = { .pte = 0 };
 	vmi_check_page_type(__pa(ptep) >> PAGE_SHIFT, VMI_PAGE_PTE);
 	vmi_ops.set_pte(pte, ptep, vmi_flags_addr(mm, addr, VMI_PAGE_PT, 0));
 }
 
 static void vmi_pmd_clear(pmd_t *pmd)
 {
-	const pte_t pte = { 0 };
+	const pte_t pte = { .pte = 0 };
 	vmi_check_page_type(__pa(pmd) >> PAGE_SHIFT, VMI_PAGE_PMD);
 	vmi_ops.set_pte(pte, (pte_t *)pmd, VMI_PAGE_PD);
 }
-- 
cgit v1.2.3-59-g8ed1b


From 015c8dd0cb3b380cb4c3930968250c719d1dd303 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:32:58 +0100
Subject: xen: mask out PWT too

The hypervisor doesn't allow PCD or PWT to be set on guest ptes, so
make sure they're masked out.  Also, fix up some previous mispatching.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/xen/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 52f392893008..3e9e095c295c 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -291,7 +291,7 @@ pte_t xen_make_pte(unsigned long pte)
 	if (pte & _PAGE_PRESENT)
 		pte = phys_to_machine(XPADDR(pte)).maddr;
 
-	pte &= ~_PAGE_PCD;
+	pte &= ~(_PAGE_PCD | _PAGE_PWT);
 
 	return (pte_t){ pte };
 }
-- 
cgit v1.2.3-59-g8ed1b


From c68461b67d97739707b3fc57618f22091791f2af Mon Sep 17 00:00:00 2001
From: Nikanth Karthikesan <knikanth@suse.de>
Date: Wed, 30 Jan 2008 13:32:59 +0100
Subject: x86: change x86 machine check handler to use unlocked_ioctl instead

The machine check handler registers ioctl handler that is called
with the BKL held. Changing to register unlocked_ioctl instead.
Also mce ioctl handler does not seem to need any lock protection.

To: Andi Kleen <andi@firstfloor.org>
Cc: linux-kernel@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org

Change the Machine check handler to use unlocked_ioctl instead of
ioctl handler. Also the mce ioctl handler does not need any lock
protection.

Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/mcheck/mce_64.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index bc6e35153d83..98b23d55fe6e 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -634,8 +634,7 @@ static unsigned int mce_poll(struct file *file, poll_table *wait)
 	return 0;
 }
 
-static int mce_ioctl(struct inode *i, struct file *f,unsigned int cmd,
-		     unsigned long arg)
+static long mce_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
 {
 	int __user *p = (int __user *)arg;
 
@@ -664,7 +663,7 @@ static const struct file_operations mce_chrdev_ops = {
 	.release = mce_release,
 	.read = mce_read,
 	.poll = mce_poll,
-	.ioctl = mce_ioctl,
+	.unlocked_ioctl = mce_ioctl,
 };
 
 static struct miscdevice mce_log_device = {
-- 
cgit v1.2.3-59-g8ed1b


From a604b38036bee1483fb98a520c69895d5d6276a6 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:32:59 +0100
Subject: x86: introduce __die helper to X86_32

Small step towards unifying traps_32|64.c.  No functional
changes.  Pull out a small helper from an if() statement
in die().

Marked as __kprobes as eventually we will want to call this
from do_page_fault similar to how X86_64 does it.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/traps_32.c | 76 +++++++++++++++++++++++++---------------------
 1 file changed, 42 insertions(+), 34 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 2eb6ca0ef672..83df0f37ba75 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -352,6 +352,45 @@ int is_valid_bugaddr(unsigned long ip)
 	return ud2 == 0x0b0f;
 }
 
+static int die_counter;
+
+int __kprobes __die(const char * str, struct pt_regs * regs, long err)
+{
+	unsigned long sp;
+	unsigned short ss;
+
+	printk(KERN_EMERG "%s: %04lx [#%d] ", str, err & 0xffff, ++die_counter);
+#ifdef CONFIG_PREEMPT
+	printk("PREEMPT ");
+#endif
+#ifdef CONFIG_SMP
+	printk("SMP ");
+#endif
+#ifdef CONFIG_DEBUG_PAGEALLOC
+	printk("DEBUG_PAGEALLOC");
+#endif
+	printk("\n");
+
+	if (notify_die(DIE_OOPS, str, regs, err,
+				current->thread.trap_no, SIGSEGV) !=
+			NOTIFY_STOP) {
+		show_registers(regs);
+		/* Executive summary in case the oops scrolled away */
+		sp = (unsigned long) (&regs->sp);
+		savesegment(ss, ss);
+		if (user_mode(regs)) {
+			sp = regs->sp;
+			ss = regs->ss & 0xffff;
+		}
+		printk(KERN_EMERG "EIP: [<%08lx>] ", regs->ip);
+		print_symbol("%s", regs->ip);
+		printk(" SS:ESP %04x:%08lx\n", ss, sp);
+		return 0;
+	} else {
+		return 1;
+	}
+}
+
 /*
  * This is gone through when something in the kernel has done something bad and
  * is about to be terminated.
@@ -367,7 +406,6 @@ void die(const char * str, struct pt_regs * regs, long err)
 		.lock_owner =		-1,
 		.lock_owner_depth =	0
 	};
-	static int die_counter;
 	unsigned long flags;
 
 	oops_enter();
@@ -383,43 +421,13 @@ void die(const char * str, struct pt_regs * regs, long err)
 		raw_local_irq_save(flags);
 
 	if (++die.lock_owner_depth < 3) {
-		unsigned long sp;
-		unsigned short ss;
-
 		report_bug(regs->ip, regs);
 
-		printk(KERN_EMERG "%s: %04lx [#%d] ", str, err & 0xffff,
-		       ++die_counter);
-#ifdef CONFIG_PREEMPT
-		printk("PREEMPT ");
-#endif
-#ifdef CONFIG_SMP
-		printk("SMP ");
-#endif
-#ifdef CONFIG_DEBUG_PAGEALLOC
-		printk("DEBUG_PAGEALLOC");
-#endif
-		printk("\n");
-
-		if (notify_die(DIE_OOPS, str, regs, err,
-					current->thread.trap_no, SIGSEGV) !=
-				NOTIFY_STOP) {
-			show_registers(regs);
-			/* Executive summary in case the oops scrolled away */
-			sp = (unsigned long) (&regs->sp);
-			savesegment(ss, ss);
-			if (user_mode(regs)) {
-				sp = regs->sp;
-				ss = regs->ss & 0xffff;
-			}
-			printk(KERN_EMERG "EIP: [<%08lx>] ", regs->ip);
-			print_symbol("%s", regs->ip);
-			printk(" SS:ESP %04x:%08lx\n", ss, sp);
-		}
-		else
+		if (__die(str, regs, err))
 			regs = NULL;
-  	} else
+	} else {
 		printk(KERN_EMERG "Recursive die() failure, output suppressed\n");
+	}
 
 	bust_spinlocks(0);
 	die.lock_owner = -1;
-- 
cgit v1.2.3-59-g8ed1b


From 318aa296c329625916c47703eab906d6ebf13930 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:32:59 +0100
Subject: x86: more users of PF_ constants in fault_32|64.c

Should be the last of the error_code tests that could use
the PF_ defines.  Makes X86_32|64 a little closer.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 7 ++++---
 arch/x86/mm/fault_64.c | 2 +-
 2 files changed, 5 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index b1893ebf6456..421e276770ad 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -404,7 +404,8 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	 * protection error (error_code & 9) == 0.
 	 */
 	if (unlikely(address >= TASK_SIZE)) {
-		if (!(error_code & 0x0000000d) && vmalloc_fault(address) >= 0)
+		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
+		    vmalloc_fault(address) >= 0)
 			return;
 		if (notify_page_fault(regs))
 			return;
@@ -603,7 +604,7 @@ no_context:
 		__typeof__(pte_val(__pte(0))) page;
 
 #ifdef CONFIG_X86_PAE
-		if (error_code & 16) {
+		if (error_code & PF_INSTR) {
 			pte_t *pte = lookup_address(address);
 
 			if (pte && pte_present(*pte) && !pte_exec_kernel(*pte))
@@ -674,7 +675,7 @@ out_of_memory:
 		goto survive;
 	}
 	printk("VM: killing process %s\n", tsk->comm);
-	if (error_code & 4)
+	if (error_code & PF_USER)
 		do_group_exit(SIGKILL);
 	goto no_context;
 
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 058b04cb96d4..95f142f5b5cc 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -677,7 +677,7 @@ out_of_memory:
 		goto again;
 	}
 	printk("VM: killing process %s\n", tsk->comm);
-	if (error_code & 4)
+	if (error_code & PF_USER)
 		do_group_exit(SIGKILL);
 	goto no_context;
 
-- 
cgit v1.2.3-59-g8ed1b


From b3a5acc17c4ad9c28c00ee5e5271de1b1285d22b Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:32:59 +0100
Subject: x86: use fixup_exception() in traps_64.c

Use the fixup_exception() helper instead of the open-coded
search_extable() users.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/traps_64.c | 47 +++++++++++++++-------------------------------
 1 file changed, 15 insertions(+), 32 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 7118fa0320ae..37b07d08704b 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -601,19 +601,12 @@ static void __kprobes do_trap(int trapnr, int signr, char *str,
 	}
 
 
-	/* kernel trap */ 
-	{	     
-		const struct exception_table_entry *fixup;
-		fixup = search_exception_tables(regs->ip);
-		if (fixup)
-			regs->ip = fixup->fixup;
-		else {
-			tsk->thread.error_code = error_code;
-			tsk->thread.trap_no = trapnr;
-			die(str, regs, error_code);
-		}
-		return;
+	if (!fixup_exception(regs)) {
+		tsk->thread.error_code = error_code;
+		tsk->thread.trap_no = trapnr;
+		die(str, regs, error_code);
 	}
+	return;
 }
 
 #define DO_ERROR(trapnr, signr, str, name) \
@@ -703,22 +696,15 @@ asmlinkage void __kprobes do_general_protection(struct pt_regs * regs,
 		return;
 	} 
 
-	/* kernel gp */
-	{
-		const struct exception_table_entry *fixup;
-		fixup = search_exception_tables(regs->ip);
-		if (fixup) {
-			regs->ip = fixup->fixup;
-			return;
-		}
+	if (fixup_exception(regs))
+		return;
 
-		tsk->thread.error_code = error_code;
-		tsk->thread.trap_no = 13;
-		if (notify_die(DIE_GPF, "general protection fault", regs,
-					error_code, 13, SIGSEGV) == NOTIFY_STOP)
-			return;
-		die("general protection fault", regs, error_code);
-	}
+	tsk->thread.error_code = error_code;
+	tsk->thread.trap_no = 13;
+	if (notify_die(DIE_GPF, "general protection fault", regs,
+				error_code, 13, SIGSEGV) == NOTIFY_STOP)
+		return;
+	die("general protection fault", regs, error_code);
 }
 
 static __kprobes void
@@ -910,12 +896,9 @@ clear_TF_reenable:
 
 static int kernel_math_error(struct pt_regs *regs, const char *str, int trapnr)
 {
-	const struct exception_table_entry *fixup;
-	fixup = search_exception_tables(regs->ip);
-	if (fixup) {
-		regs->ip = fixup->fixup;
+	if (fixup_exception(regs))
 		return 1;
-	}
+
 	notify_die(DIE_GPF, str, regs, 0, trapnr, SIGFPE);
 	/* Illegal floating point operation in the kernel */
 	current->thread.trap_no = trapnr;
-- 
cgit v1.2.3-59-g8ed1b


From 938f667198179dc0c8424e2cfac9cd9fe405bee3 Mon Sep 17 00:00:00 2001
From: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Date: Wed, 30 Jan 2008 13:33:00 +0100
Subject: x86: coding style fixes in arch/x86/pci/fixup.c

Simple coding style fixes.

no code changed:

   text    data     bss     dec     hex filename
   3139     576     194    3909     f45 fixup.o.before
   3139     576     194    3909     f45 fixup.o.after

  md5:
   9a3467057478b2d99962bdd448282eeb  fixup.o.before.asm
   9a3467057478b2d99962bdd448282eeb  fixup.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/pci/fixup.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index 6cff66dd0c91..cb63007e20b2 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -19,7 +19,7 @@ static void __devinit pci_fixup_i450nx(struct pci_dev *d)
 
 	printk(KERN_WARNING "PCI: Searching for i450NX host bridges on %s\n", pci_name(d));
 	reg = 0xd0;
-	for(pxb=0; pxb<2; pxb++) {
+	for(pxb = 0; pxb < 2; pxb++) {
 		pci_read_config_byte(d, reg++, &busno);
 		pci_read_config_byte(d, reg++, &suba);
 		pci_read_config_byte(d, reg++, &subb);
@@ -56,7 +56,7 @@ static void __devinit  pci_fixup_umc_ide(struct pci_dev *d)
 	int i;
 
 	printk(KERN_WARNING "PCI: Fixing base address flags for device %s\n", pci_name(d));
-	for(i=0; i<4; i++)
+	for(i = 0; i < 4; i++)
 		d->resource[i].flags |= PCI_BASE_ADDRESS_SPACE_IO;
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886BF, pci_fixup_umc_ide);
@@ -127,7 +127,7 @@ static void pci_fixup_via_northbridge_bug(struct pci_dev *d)
 		   NB latency to zero */
 		pci_write_config_byte(d, PCI_LATENCY_TIMER, 0);
 
-		where = 0x95; /* the memory write queue timer register is 
+		where = 0x95; /* the memory write queue timer register is
 				different for the KT266x's: 0x95 not 0x55 */
 	} else if (d->device == PCI_DEVICE_ID_VIA_8363_0 &&
 			(d->revision == VIA_8363_KL133_REVISION_ID ||
@@ -230,7 +230,7 @@ static int quirk_pcie_aspm_write(struct pci_bus *bus, unsigned int devfn, int wh
 
 	if ((offset) && (where == offset))
 		value = value & 0xfffffffc;
-	
+
 	return raw_pci_ops->write(0, bus->number, devfn, where, size, value);
 }
 
@@ -271,8 +271,8 @@ static void pcie_rootport_aspm_quirk(struct pci_dev *pdev)
 		 * after hot-remove, the pbus->devices is empty and this code
 		 * will set the offsets to zero and the bus ops to parent's bus
 		 * ops, which is unmodified.
-	 	 */
-		for (i= GET_INDEX(pdev->device, 0); i <= GET_INDEX(pdev->device, 7); ++i)
+		 */
+		for (i = GET_INDEX(pdev->device, 0); i <= GET_INDEX(pdev->device, 7); ++i)
 			quirk_aspm_offset[i] = 0;
 
 		pbus->ops = pbus->parent->ops;
@@ -286,17 +286,17 @@ static void pcie_rootport_aspm_quirk(struct pci_dev *pdev)
 		list_for_each_entry(dev, &pbus->devices, bus_list) {
 			/* There are 0 to 8 devices attached to this bus */
 			cap_base = pci_find_capability(dev, PCI_CAP_ID_EXP);
-			quirk_aspm_offset[GET_INDEX(pdev->device, dev->devfn)]= cap_base + 0x10;
+			quirk_aspm_offset[GET_INDEX(pdev->device, dev->devfn)] = cap_base + 0x10;
 		}
 		pbus->ops = &quirk_pcie_aspm_ops;
 	}
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PA,	pcie_rootport_aspm_quirk );
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PA1,	pcie_rootport_aspm_quirk );
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PB,	pcie_rootport_aspm_quirk );
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PB1,	pcie_rootport_aspm_quirk );
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PC,	pcie_rootport_aspm_quirk );
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PC1,	pcie_rootport_aspm_quirk );
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PA,	pcie_rootport_aspm_quirk);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PA1,	pcie_rootport_aspm_quirk);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PB,	pcie_rootport_aspm_quirk);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PB1,	pcie_rootport_aspm_quirk);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PC,	pcie_rootport_aspm_quirk);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PC1,	pcie_rootport_aspm_quirk);
 
 /*
  * Fixup to mark boot BIOS video selected by BIOS before it changes
@@ -336,8 +336,8 @@ static void __devinit pci_fixup_video(struct pci_dev *pdev)
 		 * PCI header type NORMAL.
 		 */
 		if (bridge
-		    &&((bridge->hdr_type == PCI_HEADER_TYPE_BRIDGE)
-		       ||(bridge->hdr_type == PCI_HEADER_TYPE_CARDBUS))) {
+		    && ((bridge->hdr_type == PCI_HEADER_TYPE_BRIDGE)
+		       || (bridge->hdr_type == PCI_HEADER_TYPE_CARDBUS))) {
 			pci_read_config_word(bridge, PCI_BRIDGE_CONTROL,
 						&config);
 			if (!(config & PCI_BRIDGE_CTL_VGA))
-- 
cgit v1.2.3-59-g8ed1b


From 3d97775a80a03013abe1fd681620925f884ad18a Mon Sep 17 00:00:00 2001
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Date: Wed, 30 Jan 2008 13:33:00 +0100
Subject: x86: move out tick_nohz_stop_sched_tick() call from the loop

Move out tick_nohz_stop_sched_tick() call from the loop in cpu_idle
same as 32-bit version.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_64.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 78d80067b7f9..a0130eb2fa50 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -170,14 +170,13 @@ void cpu_idle(void)
 	current_thread_info()->status |= TS_POLLING;
 	/* endless idle loop with no priority at all */
 	while (1) {
+		tick_nohz_stop_sched_tick();
 		while (!need_resched()) {
 			void (*idle)(void);
 
 			if (__get_cpu_var(cpu_idle_state))
 				__get_cpu_var(cpu_idle_state) = 0;
 
-			tick_nohz_stop_sched_tick();
-
 			rmb();
 			idle = pm_idle;
 			if (!idle)
-- 
cgit v1.2.3-59-g8ed1b


From 1379a5ce3ffc549a7ff3daffc49c5e1c372717a3 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:00 +0100
Subject: x86: move get_segment_eip() to step.c

get_segment_eip has similarities to convert_rip_to_linear(),
and is used in a similar context.  Move get_segment_eip to
step.c to allow easier consolidation.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/step.c   | 81 ++++++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/mm/fault_32.c   | 77 ---------------------------------------------
 arch/x86/mm/fault_64.c   | 77 ---------------------------------------------
 include/asm-x86/ptrace.h |  2 ++
 4 files changed, 83 insertions(+), 154 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 21ea22fda5fc..5884dd485db8 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -5,6 +5,87 @@
 #include <linux/mm.h>
 #include <linux/ptrace.h>
 
+#ifdef CONFIG_X86_32
+#include <linux/uaccess.h>
+
+#include <asm/desc.h>
+
+/*
+ * Return EIP plus the CS segment base.  The segment limit is also
+ * adjusted, clamped to the kernel/user address space (whichever is
+ * appropriate), and returned in *eip_limit.
+ *
+ * The segment is checked, because it might have been changed by another
+ * task between the original faulting instruction and here.
+ *
+ * If CS is no longer a valid code segment, or if EIP is beyond the
+ * limit, or if it is a kernel address when CS is not a kernel segment,
+ * then the returned value will be greater than *eip_limit.
+ *
+ * This is slow, but is very rarely executed.
+ */
+unsigned long get_segment_eip(struct pt_regs *regs,
+					    unsigned long *eip_limit)
+{
+	unsigned long ip = regs->ip;
+	unsigned seg = regs->cs & 0xffff;
+	u32 seg_ar, seg_limit, base, *desc;
+
+	/* Unlikely, but must come before segment checks. */
+	if (unlikely(regs->flags & VM_MASK)) {
+		base = seg << 4;
+		*eip_limit = base + 0xffff;
+		return base + (ip & 0xffff);
+	}
+
+	/* The standard kernel/user address space limit. */
+	*eip_limit = user_mode(regs) ? USER_DS.seg : KERNEL_DS.seg;
+
+	/* By far the most common cases. */
+	if (likely(SEGMENT_IS_FLAT_CODE(seg)))
+		return ip;
+
+	/* Check the segment exists, is within the current LDT/GDT size,
+	   that kernel/user (ring 0..3) has the appropriate privilege,
+	   that it's a code segment, and get the limit. */
+	__asm__("larl %3,%0; lsll %3,%1"
+		 : "=&r" (seg_ar), "=r" (seg_limit) : "0" (0), "rm" (seg));
+	if ((~seg_ar & 0x9800) || ip > seg_limit) {
+		*eip_limit = 0;
+		return 1;	 /* So that returned ip > *eip_limit. */
+	}
+
+	/* Get the GDT/LDT descriptor base.
+	   When you look for races in this code remember that
+	   LDT and other horrors are only used in user space. */
+	if (seg & (1<<2)) {
+		/* Must lock the LDT while reading it. */
+		mutex_lock(&current->mm->context.lock);
+		desc = current->mm->context.ldt;
+		desc = (void *)desc + (seg & ~7);
+	} else {
+		/* Must disable preemption while reading the GDT. */
+		desc = (u32 *)get_cpu_gdt_table(get_cpu());
+		desc = (void *)desc + (seg & ~7);
+	}
+
+	/* Decode the code segment base from the descriptor */
+	base = get_desc_base((struct desc_struct *)desc);
+
+	if (seg & (1<<2))
+		mutex_unlock(&current->mm->context.lock);
+	else
+		put_cpu();
+
+	/* Adjust EIP and segment limit, and clamp at the kernel limit.
+	   It's legitimate for segments to wrap at 0xffffffff. */
+	seg_limit += base;
+	if (seg_limit < *eip_limit && seg_limit >= base)
+		*eip_limit = seg_limit;
+	return ip + base;
+}
+#endif
+
 #ifdef CONFIG_X86_32
 static
 #endif
diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 421e276770ad..b92922a1d65f 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -61,83 +61,6 @@ static inline int notify_page_fault(struct pt_regs *regs)
 #endif
 }
 
-#ifdef CONFIG_X86_32
-/*
- * Return EIP plus the CS segment base.  The segment limit is also
- * adjusted, clamped to the kernel/user address space (whichever is
- * appropriate), and returned in *eip_limit.
- *
- * The segment is checked, because it might have been changed by another
- * task between the original faulting instruction and here.
- *
- * If CS is no longer a valid code segment, or if EIP is beyond the
- * limit, or if it is a kernel address when CS is not a kernel segment,
- * then the returned value will be greater than *eip_limit.
- *
- * This is slow, but is very rarely executed.
- */
-static inline unsigned long get_segment_eip(struct pt_regs *regs,
-					    unsigned long *eip_limit)
-{
-	unsigned long ip = regs->ip;
-	unsigned seg = regs->cs & 0xffff;
-	u32 seg_ar, seg_limit, base, *desc;
-
-	/* Unlikely, but must come before segment checks. */
-	if (unlikely(regs->flags & VM_MASK)) {
-		base = seg << 4;
-		*eip_limit = base + 0xffff;
-		return base + (ip & 0xffff);
-	}
-
-	/* The standard kernel/user address space limit. */
-	*eip_limit = user_mode(regs) ? USER_DS.seg : KERNEL_DS.seg;
-
-	/* By far the most common cases. */
-	if (likely(SEGMENT_IS_FLAT_CODE(seg)))
-		return ip;
-
-	/* Check the segment exists, is within the current LDT/GDT size,
-	   that kernel/user (ring 0..3) has the appropriate privilege,
-	   that it's a code segment, and get the limit. */
-	__asm__ ("larl %3,%0; lsll %3,%1"
-		 : "=&r" (seg_ar), "=r" (seg_limit) : "0" (0), "rm" (seg));
-	if ((~seg_ar & 0x9800) || ip > seg_limit) {
-		*eip_limit = 0;
-		return 1;	 /* So that returned ip > *eip_limit. */
-	}
-
-	/* Get the GDT/LDT descriptor base.
-	   When you look for races in this code remember that
-	   LDT and other horrors are only used in user space. */
-	if (seg & (1<<2)) {
-		/* Must lock the LDT while reading it. */
-		mutex_lock(&current->mm->context.lock);
-		desc = current->mm->context.ldt;
-		desc = (void *)desc + (seg & ~7);
-	} else {
-		/* Must disable preemption while reading the GDT. */
-		desc = (u32 *)get_cpu_gdt_table(get_cpu());
-		desc = (void *)desc + (seg & ~7);
-	}
-
-	/* Decode the code segment base from the descriptor */
-	base = get_desc_base((struct desc_struct *)desc);
-
-	if (seg & (1<<2))
-		mutex_unlock(&current->mm->context.lock);
-	else
-		put_cpu();
-
-	/* Adjust EIP and segment limit, and clamp at the kernel limit.
-	   It's legitimate for segments to wrap at 0xffffffff. */
-	seg_limit += base;
-	if (seg_limit < *eip_limit && seg_limit >= base)
-		*eip_limit = seg_limit;
-	return ip + base;
-}
-#endif
-
 /*
  * X86_32
  * Sometimes AMD Athlon/Opteron CPUs report invalid exceptions on prefetch.
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 95f142f5b5cc..e82832961d72 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -64,83 +64,6 @@ static inline int notify_page_fault(struct pt_regs *regs)
 #endif
 }
 
-#ifdef CONFIG_X86_32
-/*
- * Return EIP plus the CS segment base.  The segment limit is also
- * adjusted, clamped to the kernel/user address space (whichever is
- * appropriate), and returned in *eip_limit.
- *
- * The segment is checked, because it might have been changed by another
- * task between the original faulting instruction and here.
- *
- * If CS is no longer a valid code segment, or if EIP is beyond the
- * limit, or if it is a kernel address when CS is not a kernel segment,
- * then the returned value will be greater than *eip_limit.
- *
- * This is slow, but is very rarely executed.
- */
-static inline unsigned long get_segment_eip(struct pt_regs *regs,
-					    unsigned long *eip_limit)
-{
-	unsigned long ip = regs->ip;
-	unsigned seg = regs->cs & 0xffff;
-	u32 seg_ar, seg_limit, base, *desc;
-
-	/* Unlikely, but must come before segment checks. */
-	if (unlikely(regs->flags & VM_MASK)) {
-		base = seg << 4;
-		*eip_limit = base + 0xffff;
-		return base + (ip & 0xffff);
-	}
-
-	/* The standard kernel/user address space limit. */
-	*eip_limit = user_mode(regs) ? USER_DS.seg : KERNEL_DS.seg;
-
-	/* By far the most common cases. */
-	if (likely(SEGMENT_IS_FLAT_CODE(seg)))
-		return ip;
-
-	/* Check the segment exists, is within the current LDT/GDT size,
-	   that kernel/user (ring 0..3) has the appropriate privilege,
-	   that it's a code segment, and get the limit. */
-	__asm__("larl %3,%0; lsll %3,%1"
-		 : "=&r" (seg_ar), "=r" (seg_limit) : "0" (0), "rm" (seg));
-	if ((~seg_ar & 0x9800) || ip > seg_limit) {
-		*eip_limit = 0;
-		return 1;	 /* So that returned ip > *eip_limit. */
-	}
-
-	/* Get the GDT/LDT descriptor base.
-	   When you look for races in this code remember that
-	   LDT and other horrors are only used in user space. */
-	if (seg & (1<<2)) {
-		/* Must lock the LDT while reading it. */
-		mutex_lock(&current->mm->context.lock);
-		desc = current->mm->context.ldt;
-		desc = (void *)desc + (seg & ~7);
-	} else {
-		/* Must disable preemption while reading the GDT. */
-		desc = (u32 *)get_cpu_gdt_table(get_cpu());
-		desc = (void *)desc + (seg & ~7);
-	}
-
-	/* Decode the code segment base from the descriptor */
-	base = get_desc_base((struct desc_struct *)desc);
-
-	if (seg & (1<<2))
-		mutex_unlock(&current->mm->context.lock);
-	else
-		put_cpu();
-
-	/* Adjust EIP and segment limit, and clamp at the kernel limit.
-	   It's legitimate for segments to wrap at 0xffffffff. */
-	seg_limit += base;
-	if (seg_limit < *eip_limit && seg_limit >= base)
-		*eip_limit = seg_limit;
-	return ip + base;
-}
-#endif
-
 /*
  * X86_32
  * Sometimes AMD Athlon/Opteron CPUs report invalid exceptions on prefetch.
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index 61946fe8c085..cc4456667d89 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -184,6 +184,8 @@ convert_rip_to_linear(struct task_struct *child, struct pt_regs *regs);
 
 #ifdef __KERNEL__
 
+unsigned long get_segment_eip(struct pt_regs *regs, unsigned long *eip_limit);
+
 /*
  * These are defined as per linux/ptrace.h, which see.
  */
-- 
cgit v1.2.3-59-g8ed1b


From 1017579a8c6ad6f32154e41ddfdf96d1efbb21b4 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:01 +0100
Subject: x86: trivial whitespace in kprobes.c

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 53ba6a5b6550..93aff49798ee 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -583,8 +583,8 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
  * When a retprobed function returns, this code saves registers and
  * calls trampoline_handler() runs, which calls the kretprobe's handler.
  */
- void __kprobes kretprobe_trampoline_holder(void)
- {
+void __kprobes kretprobe_trampoline_holder(void)
+{
 	asm volatile (
 			".global kretprobe_trampoline\n"
 			"kretprobe_trampoline: \n"
@@ -670,7 +670,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 			"	popf\n"
 #endif
 			"	ret\n");
- }
+}
 
 /*
  * Called from kretprobe_trampoline
-- 
cgit v1.2.3-59-g8ed1b


From c4d9ba6da9f050ebb7e0d70769e3dca0fd45334f Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:33:01 +0100
Subject: x86 setup: make PM transition more paranoid; cleanup 32-bit entry

Make the transition to protected mode more paranoid by having
back-to-back near jump (to synchronize the 386/486 prefetch queue) and
far jump (to set up the code segment.)

While we're at it, zero as many registers as practical (for future
expandability of the 32-bit entry interface) and enter 32-bit mode
with a valid stack.  Note that the 32-bit code cannot rely on this
stack, or we'll break all other existing users of the 32-bit
entrypoint, but it may make debugging hacks easier to write.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/pmjump.S | 44 ++++++++++++++++++++++++++++++++------------
 1 file changed, 32 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/pmjump.S b/arch/x86/boot/pmjump.S
index fa6bed1fac14..ef0da1f2c7fd 100644
--- a/arch/x86/boot/pmjump.S
+++ b/arch/x86/boot/pmjump.S
@@ -29,12 +29,13 @@
  */
 protected_mode_jump:
 	movl	%edx, %esi		# Pointer to boot_params table
-	movl	%eax, 2f		# Patch ljmpl instruction
+
+	xorl	%ebx, %ebx
+	movw	%cs, %bx
+	shll	$4, %ebx
+	addl	%ebx, 2f
 
 	movw	$__BOOT_DS, %cx
-	xorl	%ebx, %ebx		# Per the 32-bit boot protocol
-	xorl	%ebp, %ebp		# Per the 32-bit boot protocol
-	xorl	%edi, %edi		# Per the 32-bit boot protocol
 
 	movl	%cr0, %edx
 	orb	$1, %dl			# Protected mode (PE) bit
@@ -42,15 +43,34 @@ protected_mode_jump:
 	jmp	1f			# Short jump to serialize on 386/486
 1:
 
-	movw	%cx, %ds
-	movw	%cx, %es
-	movw	%cx, %fs
-	movw	%cx, %gs
-	movw	%cx, %ss
-
-	# Jump to the 32-bit entrypoint
+	# Transition to 32-bit mode
 	.byte	0x66, 0xea		# ljmpl opcode
-2:	.long	0			# offset
+2:	.long	in_pm32			# offset
 	.word	__BOOT_CS		# segment
 
 	.size	protected_mode_jump, .-protected_mode_jump
+
+	.code32
+	.type	in_pm32, @function
+in_pm32:
+	# Set up data segments for flat 32-bit mode
+	movl	%ecx, %ds
+	movl	%ecx, %es
+	movl	%ecx, %fs
+	movl	%ecx, %gs
+	movl	%ecx, %ss
+	# The 32-bit code sets up its own stack, but this way we do have
+	# a valid stack if some debugging hack wants to use it.
+	addl	%ebx, %esp
+
+	# Clear registers to allow for future extensions to the
+	# 32-bit boot protocol
+	xorl	%ecx, %ecx
+	xorl	%edx, %edx
+	xorl	%ebx, %ebx
+	xorl	%ebp, %ebp
+	xorl	%edi, %edi
+
+	jmpl	*%eax			# Jump to the 32-bit entrypoint
+
+	.size	in_pm32, .-in_pm32
-- 
cgit v1.2.3-59-g8ed1b


From 88089519f302f1296b4739be45699f06f728ec31 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:33:02 +0100
Subject: x86 setup: initialize LDTR and TR to make life easier to Intel VT

Intel VT doesn't like to engage when the protected-mode state isn't
fully initialized.  Make life easier for it by initializing LDTR (to
null) and TR (to a dummy hunk of low memory which will never actually
be touched.)

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/pm.c        | 4 ++++
 arch/x86/boot/pmjump.S    | 7 +++++++
 include/asm-x86/segment.h | 3 +++
 3 files changed, 14 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/boot/pm.c b/arch/x86/boot/pm.c
index 09fb342cc62e..b23cbdc7d547 100644
--- a/arch/x86/boot/pm.c
+++ b/arch/x86/boot/pm.c
@@ -121,6 +121,10 @@ static void setup_gdt(void)
 		[GDT_ENTRY_BOOT_CS] = GDT_ENTRY(0xc09b, 0, 0xfffff),
 		/* DS: data, read/write, 4 GB, base 0 */
 		[GDT_ENTRY_BOOT_DS] = GDT_ENTRY(0xc093, 0, 0xfffff),
+		/* TSS: 32-bit tss, 104 bytes, base 4096 */
+		/* We only have a TSS here to keep Intel VT happy;
+		   we don't actually use it for anything. */
+		[GDT_ENTRY_BOOT_TSS] = GDT_ENTRY(0x0089, 4096, 103),
 	};
 	/* Xen HVM incorrectly stores a pointer to the gdt_ptr, instead
 	   of the gdt_ptr contents.  Thus, make it static so it will
diff --git a/arch/x86/boot/pmjump.S b/arch/x86/boot/pmjump.S
index ef0da1f2c7fd..f7153d0d476e 100644
--- a/arch/x86/boot/pmjump.S
+++ b/arch/x86/boot/pmjump.S
@@ -36,6 +36,7 @@ protected_mode_jump:
 	addl	%ebx, 2f
 
 	movw	$__BOOT_DS, %cx
+	movw	$__BOOT_TSS, %di
 
 	movl	%cr0, %edx
 	orb	$1, %dl			# Protected mode (PE) bit
@@ -63,6 +64,9 @@ in_pm32:
 	# a valid stack if some debugging hack wants to use it.
 	addl	%ebx, %esp
 
+	# Set up TR to make Intel VT happy
+	ltr	%di
+
 	# Clear registers to allow for future extensions to the
 	# 32-bit boot protocol
 	xorl	%ecx, %ecx
@@ -71,6 +75,9 @@ in_pm32:
 	xorl	%ebp, %ebp
 	xorl	%edi, %edi
 
+	# Set up LDTR to make Intel VT happy
+	lldt	%cx
+
 	jmpl	*%eax			# Jump to the 32-bit entrypoint
 
 	.size	in_pm32, .-in_pm32
diff --git a/include/asm-x86/segment.h b/include/asm-x86/segment.h
index 1ff05a9f5513..57c8d3723836 100644
--- a/include/asm-x86/segment.h
+++ b/include/asm-x86/segment.h
@@ -9,6 +9,9 @@
 #define GDT_ENTRY_BOOT_DS	(GDT_ENTRY_BOOT_CS + 1)
 #define __BOOT_DS		(GDT_ENTRY_BOOT_DS * 8)
 
+#define GDT_ENTRY_BOOT_TSS	(GDT_ENTRY_BOOT_CS + 2)
+#define __BOOT_TSS		(GDT_ENTRY_BOOT_TSS * 8)
+
 #ifdef CONFIG_X86_32
 /*
  * The layout of the per-CPU GDT under Linux:
-- 
cgit v1.2.3-59-g8ed1b


From 02a7b425e82cd0052e5eaedbae81a522c6aae6c4 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:33:02 +0100
Subject: x86 setup: use X86_CR0_PE macro instead of hard-coded constant

To set CR0.PE, use the X86_CR0_PE macro defined in
<asm/processor-flags.h> instead of hardcoding it as a constant (1).

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/pmjump.S | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/boot/pmjump.S b/arch/x86/boot/pmjump.S
index f7153d0d476e..f5402d51f7c3 100644
--- a/arch/x86/boot/pmjump.S
+++ b/arch/x86/boot/pmjump.S
@@ -15,6 +15,7 @@
  */
 
 #include <asm/boot.h>
+#include <asm/processor-flags.h>
 #include <asm/segment.h>
 
 	.text
@@ -39,7 +40,7 @@ protected_mode_jump:
 	movw	$__BOOT_TSS, %di
 
 	movl	%cr0, %edx
-	orb	$1, %dl			# Protected mode (PE) bit
+	orb	$X86_CR0_PE, %dl	# Protected mode
 	movl	%edx, %cr0
 	jmp	1f			# Short jump to serialize on 386/486
 1:
-- 
cgit v1.2.3-59-g8ed1b


From 1cac5004e953506166e980da5776d5cc1c176d79 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:33:02 +0100
Subject: x86 setup: display VESA graphics modes in vga=ask menu

Display VESA graphics modes, with their mode IDs, in the vga=ask
menu.  Most VESA mode numbers are platform-dependent, so it helps to
have an easy way to display them.

Based in part on a patch by Petr Vandrovec <petr@vandrovec.name>.

Cc: Petr Vandrovec <petr@vandrovec.name>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/video-bios.c |  3 ++-
 arch/x86/boot/video-vesa.c | 26 +++++++++++++++++---------
 arch/x86/boot/video-vga.c  | 20 ++++++++++----------
 arch/x86/boot/video.c      | 33 ++++++++++++++++++++++++++++++---
 arch/x86/boot/video.h      |  3 ++-
 5 files changed, 61 insertions(+), 24 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/video-bios.c b/arch/x86/boot/video-bios.c
index ed0672a81870..ff664a117096 100644
--- a/arch/x86/boot/video-bios.c
+++ b/arch/x86/boot/video-bios.c
@@ -104,6 +104,7 @@ static int bios_probe(void)
 
 		mi = GET_HEAP(struct mode_info, 1);
 		mi->mode = VIDEO_FIRST_BIOS+mode;
+		mi->depth = 0;	/* text */
 		mi->x = rdfs16(0x44a);
 		mi->y = rdfs8(0x484)+1;
 		nmodes++;
@@ -116,7 +117,7 @@ static int bios_probe(void)
 
 __videocard video_bios =
 {
-	.card_name	= "BIOS (scanned)",
+	.card_name	= "BIOS",
 	.probe		= bios_probe,
 	.set_mode	= bios_set_mode,
 	.unsafe		= 1,
diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
index 4716b9a96357..662dd2f13068 100644
--- a/arch/x86/boot/video-vesa.c
+++ b/arch/x86/boot/video-vesa.c
@@ -79,20 +79,28 @@ static int vesa_probe(void)
 			/* Text Mode, TTY BIOS supported,
 			   supported by hardware */
 			mi = GET_HEAP(struct mode_info, 1);
-			mi->mode = mode + VIDEO_FIRST_VESA;
-			mi->x    = vminfo.h_res;
-			mi->y    = vminfo.v_res;
+			mi->mode  = mode + VIDEO_FIRST_VESA;
+			mi->depth = 0; /* text */
+			mi->x     = vminfo.h_res;
+			mi->y     = vminfo.v_res;
 			nmodes++;
-		} else if ((vminfo.mode_attr & 0x99) == 0x99) {
+		} else if ((vminfo.mode_attr & 0x99) == 0x99 &&
+			   (vminfo.memory_layout == 4 ||
+			    vminfo.memory_layout == 6) &&
+			   vminfo.memory_planes == 1) {
 #ifdef CONFIG_FB
 			/* Graphics mode, color, linear frame buffer
-			   supported -- register the mode but hide from
-			   the menu.  Only do this if framebuffer is
-			   configured, however, otherwise the user will
-			   be left without a screen. */
+			   supported.  Only register the mode if
+			   if framebuffer is configured, however,
+			   otherwise the user will be left without a screen.
+			   We don't require CONFIG_FB_VESA, however, since
+			   some of the other framebuffer drivers can use
+			   this mode-setting, too. */
 			mi = GET_HEAP(struct mode_info, 1);
 			mi->mode = mode + VIDEO_FIRST_VESA;
-			mi->x = mi->y = 0;
+			mi->depth = vminfo.bpp;
+			mi->x = vminfo.h_res;
+			mi->y = vminfo.v_res;
 			nmodes++;
 #endif
 		}
diff --git a/arch/x86/boot/video-vga.c b/arch/x86/boot/video-vga.c
index aef02f9ec0c1..7259387b7d19 100644
--- a/arch/x86/boot/video-vga.c
+++ b/arch/x86/boot/video-vga.c
@@ -18,22 +18,22 @@
 #include "video.h"
 
 static struct mode_info vga_modes[] = {
-	{ VIDEO_80x25,  80, 25 },
-	{ VIDEO_8POINT, 80, 50 },
-	{ VIDEO_80x43,  80, 43 },
-	{ VIDEO_80x28,  80, 28 },
-	{ VIDEO_80x30,  80, 30 },
-	{ VIDEO_80x34,  80, 34 },
-	{ VIDEO_80x60,  80, 60 },
+	{ VIDEO_80x25,  80, 25, 0 },
+	{ VIDEO_8POINT, 80, 50, 0 },
+	{ VIDEO_80x43,  80, 43, 0 },
+	{ VIDEO_80x28,  80, 28, 0 },
+	{ VIDEO_80x30,  80, 30, 0 },
+	{ VIDEO_80x34,  80, 34, 0 },
+	{ VIDEO_80x60,  80, 60, 0 },
 };
 
 static struct mode_info ega_modes[] = {
-	{ VIDEO_80x25,  80, 25 },
-	{ VIDEO_8POINT, 80, 43 },
+	{ VIDEO_80x25,  80, 25, 0 },
+	{ VIDEO_8POINT, 80, 43, 0 },
 };
 
 static struct mode_info cga_modes[] = {
-	{ VIDEO_80x25,  80, 25 },
+	{ VIDEO_80x25,  80, 25, 0 },
 };
 
 __videocard video_vga;
diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
index ad9712f01739..696d08f3843c 100644
--- a/arch/x86/boot/video.c
+++ b/arch/x86/boot/video.c
@@ -293,13 +293,28 @@ static void display_menu(void)
 	struct mode_info *mi;
 	char ch;
 	int i;
+	int nmodes;
+	int modes_per_line;
+	int col;
 
-	puts("Mode:    COLSxROWS:\n");
+	nmodes = 0;
+	for (card = video_cards; card < video_cards_end; card++)
+		nmodes += card->nmodes;
 
+	modes_per_line = 1;
+	if (nmodes >= 20)
+		modes_per_line = 3;
+
+	for (col = 0; col < modes_per_line; col++)
+		puts("Mode: Resolution:  Type: ");
+	putchar('\n');
+
+	col = 0;
 	ch = '0';
 	for (card = video_cards; card < video_cards_end; card++) {
 		mi = card->modes;
 		for (i = 0; i < card->nmodes; i++, mi++) {
+			char resbuf[32];
 			int visible = mi->x && mi->y;
 			u16 mode_id = mi->mode ? mi->mode :
 				(mi->y << 8)+mi->x;
@@ -307,8 +322,18 @@ static void display_menu(void)
 			if (!visible)
 				continue; /* Hidden mode */
 
-			printf("%c  %04X  %3dx%-3d  %s\n",
-			       ch, mode_id, mi->x, mi->y, card->card_name);
+			if (mi->depth)
+				sprintf(resbuf, "%dx%d", mi->y, mi->depth);
+			else
+				sprintf(resbuf, "%d", mi->y);
+
+			printf("%c %03X %4dx%-7s %-6s",
+			       ch, mode_id, mi->x, resbuf, card->card_name);
+			col++;
+			if (col >= modes_per_line) {
+				putchar('\n');
+				col = 0;
+			}
 
 			if (ch == '9')
 				ch = 'a';
@@ -318,6 +343,8 @@ static void display_menu(void)
 				ch++;
 		}
 	}
+	if (col)
+		putchar('\n');
 }
 
 #define H(x)	((x)-'a'+10)
diff --git a/arch/x86/boot/video.h b/arch/x86/boot/video.h
index b92447d51213..d69347f79e8e 100644
--- a/arch/x86/boot/video.h
+++ b/arch/x86/boot/video.h
@@ -83,7 +83,8 @@ void store_screen(void);
 
 struct mode_info {
 	u16 mode;		/* Mode number (vga= style) */
-	u8  x, y;		/* Width, height */
+	u16 x, y;		/* Width, height */
+	u16 depth;		/* Bits per pixel, 0 for text mode */
 };
 
 struct card_info {
-- 
cgit v1.2.3-59-g8ed1b


From 811a0fff5d6e80e18e06be88e0fb685f3924bf8f Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:33:02 +0100
Subject: x86 setup: fix constraints in segment accessor functions

Fix the operand constraints for the segment accessor functions,
{rd,wr}{fs,gs}*.  In particular, the 8-bit functions used "r"
constraints instead of "q" constraints.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/boot.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
index d2b5adf46512..8ec575249aa9 100644
--- a/arch/x86/boot/boot.h
+++ b/arch/x86/boot/boot.h
@@ -109,7 +109,7 @@ typedef unsigned int addr_t;
 static inline u8 rdfs8(addr_t addr)
 {
 	u8 v;
-	asm volatile("movb %%fs:%1,%0" : "=r" (v) : "m" (*(u8 *)addr));
+	asm volatile("movb %%fs:%1,%0" : "=q" (v) : "m" (*(u8 *)addr));
 	return v;
 }
 static inline u16 rdfs16(addr_t addr)
@@ -127,21 +127,21 @@ static inline u32 rdfs32(addr_t addr)
 
 static inline void wrfs8(u8 v, addr_t addr)
 {
-	asm volatile("movb %1,%%fs:%0" : "+m" (*(u8 *)addr) : "r" (v));
+	asm volatile("movb %1,%%fs:%0" : "+m" (*(u8 *)addr) : "qi" (v));
 }
 static inline void wrfs16(u16 v, addr_t addr)
 {
-	asm volatile("movw %1,%%fs:%0" : "+m" (*(u16 *)addr) : "r" (v));
+	asm volatile("movw %1,%%fs:%0" : "+m" (*(u16 *)addr) : "ri" (v));
 }
 static inline void wrfs32(u32 v, addr_t addr)
 {
-	asm volatile("movl %1,%%fs:%0" : "+m" (*(u32 *)addr) : "r" (v));
+	asm volatile("movl %1,%%fs:%0" : "+m" (*(u32 *)addr) : "ri" (v));
 }
 
 static inline u8 rdgs8(addr_t addr)
 {
 	u8 v;
-	asm volatile("movb %%gs:%1,%0" : "=r" (v) : "m" (*(u8 *)addr));
+	asm volatile("movb %%gs:%1,%0" : "=q" (v) : "m" (*(u8 *)addr));
 	return v;
 }
 static inline u16 rdgs16(addr_t addr)
@@ -159,15 +159,15 @@ static inline u32 rdgs32(addr_t addr)
 
 static inline void wrgs8(u8 v, addr_t addr)
 {
-	asm volatile("movb %1,%%gs:%0" : "+m" (*(u8 *)addr) : "r" (v));
+	asm volatile("movb %1,%%gs:%0" : "+m" (*(u8 *)addr) : "qi" (v));
 }
 static inline void wrgs16(u16 v, addr_t addr)
 {
-	asm volatile("movw %1,%%gs:%0" : "+m" (*(u16 *)addr) : "r" (v));
+	asm volatile("movw %1,%%gs:%0" : "+m" (*(u16 *)addr) : "ri" (v));
 }
 static inline void wrgs32(u32 v, addr_t addr)
 {
-	asm volatile("movl %1,%%gs:%0" : "+m" (*(u32 *)addr) : "r" (v));
+	asm volatile("movl %1,%%gs:%0" : "+m" (*(u32 *)addr) : "ri" (v));
 }
 
 /* Note: these only return true/false, not a signed return value! */
-- 
cgit v1.2.3-59-g8ed1b


From 32d0b9898029b7b3c7f161d31f57c4831d9049eb Mon Sep 17 00:00:00 2001
From: "devzero@web.de" <devzero@web.de>
Date: Wed, 30 Jan 2008 13:33:02 +0100
Subject: x86 setup: early cmdline parser handle boolean options

This patch extends the early commandline parser to support boolean options.
The current version in mainline only supports parsing "option=arg" value pairs.

With this it should be easy making other messages like "Uncompressing kernel"
honour the "quiet" parameter, too.

Signed-off-by: Roland Kletzing <devzero@web.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/cmdline.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/boot/cmdline.c b/arch/x86/boot/cmdline.c
index 34bb778c4357..cc65a33bf65c 100644
--- a/arch/x86/boot/cmdline.c
+++ b/arch/x86/boot/cmdline.c
@@ -95,3 +95,68 @@ int cmdline_find_option(const char *option, char *buffer, int bufsize)
 
 	return len;
 }
+
+/*
+ * Find a boolean option (like quiet,noapic,nosmp....)
+ *
+ * Returns the position of that option (starts counting with 1)
+ * or 0 on not found
+ */
+int cmdline_find_option_bool(const char *option)
+{
+	u32 cmdline_ptr = boot_params.hdr.cmd_line_ptr;
+	addr_t cptr;
+	char c;
+	int pos =0 , wstart = 0;
+	const char *opptr = NULL;
+	enum {
+		st_wordstart,	/* Start of word/after whitespace */
+		st_wordcmp,	/* Comparing this word */
+		st_wordskip,	/* Miscompare, skip */
+	} state = st_wordstart;
+
+	if (!cmdline_ptr || cmdline_ptr >= 0x100000)
+		return -1;	/* No command line, or inaccessible */
+
+	cptr = cmdline_ptr & 0xf;
+	set_fs(cmdline_ptr >> 4);
+
+	while (cptr < 0x10000) {
+		c = rdfs8(cptr++);
+		pos++;
+
+		switch (state) {
+		case st_wordstart:
+			if (!c)
+				return 0;
+			else if (myisspace(c))
+				break;
+
+			state = st_wordcmp;
+			opptr = option;
+			wstart = pos;
+			/* fall through */
+
+		case st_wordcmp:
+			if (!*opptr)
+				if (!c || myisspace(c))
+					return wstart;
+				else
+					state = st_wordskip;
+			else if (!c)
+				return 0;
+			else if (c != *opptr++)
+				state = st_wordskip;
+			break;
+
+		case st_wordskip:
+			if (!c)
+				return 0;
+			else if (myisspace(c))
+				state = st_wordstart;
+			break;
+		}
+	}
+
+	return 0;	/* Buffer overrun */
+}
-- 
cgit v1.2.3-59-g8ed1b


From e479c8306f898fcdb9b36179071eae6338a17364 Mon Sep 17 00:00:00 2001
From: "devzero@web.de" <devzero@web.de>
Date: Wed, 30 Jan 2008 13:33:03 +0100
Subject: x86 setup: be more verbose when probing EDD

On early boot, probing the Bios for EDD happens without any message.

Enhanced Disk Drive Services (EDD) is a mechanism to match x86 BIOS device
names (int13 device 80h) to Linux device names (e.g. /dev/sda, /dev/hda)

There are buggy Bios out there having problems with EDD. This can be problems
with the Bios itself or with addon cards, too.

This patch is adds an informational message on early boot.

CONFIG_EDD is not set with defconfig, but with allmodconfig (i.e. CONFIG_EDD=m)
so the EDD probe may be active on early boot on many systems nowadays.

I can tell, that the probe is active on SuSE distro and with that I have seen
more than one system hanging endlessly with those "black screen with a blinking
cursor in the the upper left" on installation, making it difficult for the end-
user to find out, what`s the issue.
For sure I have seen this on FujitsuSiemens PCs with i810 and with i815 chipset.

This one also honours the "quiet" bootparam.

Also see:
http://marc.info/?l=linux-kernel&m=119781937207969&w=2
http://marc.info/?l=linux-kernel&m=119783934032326&w=2
http://marc.info/?l=linux-kernel&m=119783678529100&w=2

Signed-off-by: Roland Kletzing <devzero@web.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/edd.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/boot/edd.c b/arch/x86/boot/edd.c
index bd138e442ec2..b3504cb24de7 100644
--- a/arch/x86/boot/edd.c
+++ b/arch/x86/boot/edd.c
@@ -129,6 +129,7 @@ void query_edd(void)
 	char eddarg[8];
 	int do_mbr = 1;
 	int do_edd = 1;
+	int be_quiet;
 	int devno;
 	struct edd_info ei, *edp;
 	u32 *mbrptr;
@@ -140,12 +141,21 @@ void query_edd(void)
 			do_edd = 0;
 	}
 
+	be_quiet = cmdline_find_option_bool("quiet");
+
 	edp    = boot_params.eddbuf;
 	mbrptr = boot_params.edd_mbr_sig_buffer;
 
 	if (!do_edd)
 		return;
 
+	/* Bugs in OnBoard or AddOnCards Bios may hang the EDD probe,
+	 * so give a hint if this happens.
+	 */
+
+	if (!be_quiet)
+		printf("Probing EDD...");
+
 	for (devno = 0x80; devno < 0x80+EDD_MBR_SIG_MAX; devno++) {
 		/*
 		 * Scan the BIOS-supported hard disks and query EDD
@@ -162,6 +172,9 @@ void query_edd(void)
 		if (do_mbr && !read_mbr_sig(devno, &ei, mbrptr++))
 			boot_params.edd_mbr_sig_buf_entries = devno-0x80+1;
 	}
+
+	if (!be_quiet)
+		printf("OK\n");
 }
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From f7775016c66c2f45125f22968c351c88868ee7a3 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:33:03 +0100
Subject: x86 setup: OK -> ok (no need to scream)

Unnecessary capitals are shouting; no need for it here.
Thus, change "OK" to "ok" and add a space.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/edd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/edd.c b/arch/x86/boot/edd.c
index b3504cb24de7..d3e978030c5c 100644
--- a/arch/x86/boot/edd.c
+++ b/arch/x86/boot/edd.c
@@ -154,7 +154,7 @@ void query_edd(void)
 	 */
 
 	if (!be_quiet)
-		printf("Probing EDD...");
+		printf("Probing EDD... ");
 
 	for (devno = 0x80; devno < 0x80+EDD_MBR_SIG_MAX; devno++) {
 		/*
@@ -174,7 +174,7 @@ void query_edd(void)
 	}
 
 	if (!be_quiet)
-		printf("OK\n");
+		printf("ok\n");
 }
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 70d8abf5df857ca7befe02e5d61fde807420a54c Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:33:03 +0100
Subject: x86 setup: add missing prototype; formatting fix

Add prototype for cmdline_find_option_bool() missing from:

    x86 setup: early cmdline parser handle boolean options

Also, fix up a minor formatting error in that patch.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/boot.h    | 1 +
 arch/x86/boot/cmdline.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
index 8ec575249aa9..7822a4983da2 100644
--- a/arch/x86/boot/boot.h
+++ b/arch/x86/boot/boot.h
@@ -241,6 +241,7 @@ int query_apm_bios(void);
 
 /* cmdline.c */
 int cmdline_find_option(const char *option, char *buffer, int bufsize);
+int cmdline_find_option_bool(const char *option);
 
 /* cpu.c, cpucheck.c */
 int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr);
diff --git a/arch/x86/boot/cmdline.c b/arch/x86/boot/cmdline.c
index cc65a33bf65c..680408a0f463 100644
--- a/arch/x86/boot/cmdline.c
+++ b/arch/x86/boot/cmdline.c
@@ -107,7 +107,7 @@ int cmdline_find_option_bool(const char *option)
 	u32 cmdline_ptr = boot_params.hdr.cmd_line_ptr;
 	addr_t cptr;
 	char c;
-	int pos =0 , wstart = 0;
+	int pos = 0, wstart = 0;
 	const char *opptr = NULL;
 	enum {
 		st_wordstart,	/* Start of word/after whitespace */
-- 
cgit v1.2.3-59-g8ed1b


From b710763608f1bfc8d4cd346e508f3f4878af361e Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:33:03 +0100
Subject: x86 setup: add note to use edd=off on EDD probing hangs

Tell the user to specify edd=off in the case of EDD probing hangs.
Per LKML discussion.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/edd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/boot/edd.c b/arch/x86/boot/edd.c
index d3e978030c5c..8721dc46a0b6 100644
--- a/arch/x86/boot/edd.c
+++ b/arch/x86/boot/edd.c
@@ -154,7 +154,7 @@ void query_edd(void)
 	 */
 
 	if (!be_quiet)
-		printf("Probing EDD... ");
+		printf("Probing EDD (edd=off to disable)... ");
 
 	for (devno = 0x80; devno < 0x80+EDD_MBR_SIG_MAX; devno++) {
 		/*
-- 
cgit v1.2.3-59-g8ed1b


From 1a8514e04e3f0249a75f66225e99cdf48d305be7 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:33:03 +0100
Subject: x86 setup: push video mode setup as late as possible

Push video mode setup as late as possible; messages issued through the
BIOS interface after video mode setup will either not be seen (for
framebuffer modes) or will screw up the cursor (for text modes.)

In particular, this makes the EDD probing message show up correctly.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/main.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c
index 1f95750ede28..22ca62ba40c8 100644
--- a/arch/x86/boot/main.c
+++ b/arch/x86/boot/main.c
@@ -131,9 +131,6 @@ void main(void)
 	/* Set keyboard repeat rate (why?) */
 	keyboard_set_repeat();
 
-	/* Set the video mode */
-	set_video();
-
 	/* Query MCA information */
 	query_mca();
 
@@ -154,6 +151,10 @@ void main(void)
 #if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
 	query_edd();
 #endif
+
+	/* Set the video mode */
+	set_video();
+
 	/* Do the last things and invoke protected mode */
 	go_to_protected_mode();
 }
-- 
cgit v1.2.3-59-g8ed1b


From acd644bb4abb4d9f0ba6b9ec2b356263971ef9d0 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:33:04 +0100
Subject: x86 setup: guard the heap against invalid stack setups

If we use the bootloader-provided stack pointer, we might end up in a
situation where the bootloader (incorrectly) pointed the stack in the
middle of our heap.  Catch this by simply comparing the computed heap
end value to the stack pointer minus the defined stack size.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/main.c | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c
index 22ca62ba40c8..7828da5cfd07 100644
--- a/arch/x86/boot/main.c
+++ b/arch/x86/boot/main.c
@@ -100,20 +100,32 @@ static void set_bios_mode(void)
 #endif
 }
 
-void main(void)
+static void init_heap(void)
 {
-	/* First, copy the boot header into the "zeropage" */
-	copy_boot_params();
+	char *stack_end;
 
-	/* End of heap check */
 	if (boot_params.hdr.loadflags & CAN_USE_HEAP) {
-		heap_end = (char *)(boot_params.hdr.heap_end_ptr
-				    +0x200-STACK_SIZE);
+		asm("leal %P1(%%esp),%0"
+		    : "=r" (stack_end) : "i" (-STACK_SIZE));
+
+		heap_end = (char *)
+			((size_t)boot_params.hdr.heap_end_ptr + 0x200);
+		if (heap_end > stack_end)
+			heap_end = stack_end;
 	} else {
 		/* Boot protocol 2.00 only, no heap available */
 		puts("WARNING: Ancient bootloader, some functionality "
 		     "may be limited!\n");
 	}
+}
+
+void main(void)
+{
+	/* First, copy the boot header into the "zeropage" */
+	copy_boot_params();
+
+	/* End of heap check */
+	init_heap();
 
 	/* Make sure we have all the proper CPU support */
 	if (validate_cpu()) {
-- 
cgit v1.2.3-59-g8ed1b


From 387faedb1dee2e917811acd05902cc36142a4850 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 30 Jan 2008 13:33:04 +0100
Subject: x86 setup: correct the base in the GDT_ENTRY() macro

The GDT_ENTRY() macro in pm.c would incorrectly cut the bottom 8 bits
off the base.  We didn't define any bases with the bottom 8 bits
nonzero, so it is a non-manifest bug, but it's still a bug.

Pointed out by John Smith <johnsmith9344@gmail.com>.
Cc: John Smith <johnsmith9344@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/boot/pm.c b/arch/x86/boot/pm.c
index b23cbdc7d547..1a0f936c160b 100644
--- a/arch/x86/boot/pm.c
+++ b/arch/x86/boot/pm.c
@@ -104,7 +104,7 @@ static void reset_coprocessor(void)
 	(((u64)(base & 0xff000000) << 32) |	\
 	 ((u64)flags << 40) |			\
 	 ((u64)(limit & 0x00ff0000) << 32) |	\
-	 ((u64)(base & 0x00ffff00) << 16) |	\
+	 ((u64)(base & 0x00ffffff) << 16) |	\
 	 ((u64)(limit & 0x0000ffff)))
 
 struct gdt_ptr {
-- 
cgit v1.2.3-59-g8ed1b


From c2b84b30b8c8bbccf4d2e32f8a3a70ad09ba9ab8 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:33:04 +0100
Subject: x86: sanity check APIC timer frequency

Check the APIC timer calibration result for sanity. When the frequency
is out of range, issue a warning and disable the local APIC timer.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/apic_32.c | 13 +++++++++++++
 arch/x86/kernel/apic_64.c | 12 ++++++++++++
 2 files changed, 25 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index cbcf72cde956..20d4dbc42e6e 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -470,6 +470,19 @@ void __init setup_boot_APIC_clock(void)
 
 	local_apic_timer_verify_ok = 1;
 
+	/*
+	 * Do a sanity check on the APIC calibration result
+	 */
+	if (calibration_result < (1000000 / HZ)) {
+		local_irq_enable();
+		printk(KERN_WARNING
+		       "APIC frequency too slow, disabling apic timer\n");
+		/* No broadcast on UP ! */
+		if (num_possible_cpus() > 1)
+			setup_APIC_timer();
+		return;
+	}
+
 	/* We trust the pm timer based calibration */
 	if (!pm_referenced) {
 		apic_printk(APIC_VERBOSE, "... verify APIC timer\n");
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index d1a696673d9d..731b48660fc4 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -383,6 +383,18 @@ void __init setup_boot_APIC_clock(void)
 	printk(KERN_INFO "Using local APIC timer interrupts.\n");
 	calibrate_APIC_clock();
 
+	/*
+	 * Do a sanity check on the APIC calibration result
+	 */
+	if (calibration_result < (1000000 / HZ)) {
+		printk(KERN_WARNING
+		       "APIC frequency too slow, disabling apic timer\n");
+		/* No broadcast on UP ! */
+		if (num_possible_cpus() > 1)
+			setup_APIC_timer();
+		return;
+	}
+
 	/*
 	 * If nmi_watchdog is set to IO_APIC, we need the
 	 * PIT/HPET going.  Otherwise register lapic as a dummy
-- 
cgit v1.2.3-59-g8ed1b


From 9d09951da948c0ca30944df2a9b78e68d6e0744c Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:33:04 +0100
Subject: x86: preset apic clockevents multiplicator

The check for an unitialized clock event device triggers, when the local
apic timer is registered as a dummy clock event device for broadcasting.
Preset the multiplicator to avoid a false positive.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/apic_32.c | 4 +++-
 arch/x86/kernel/apic_64.c | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 20d4dbc42e6e..d07a603807d1 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -377,8 +377,10 @@ void __init setup_boot_APIC_clock(void)
 	 */
 	if (local_apic_timer_disabled) {
 		/* No broadcast on UP ! */
-		if (num_possible_cpus() > 1)
+		if (num_possible_cpus() > 1) {
+			lapic_clockevent.mult = 1;
 			setup_APIC_timer();
+		}
 		return;
 	}
 
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 731b48660fc4..01d4ca27ecf0 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -375,8 +375,10 @@ void __init setup_boot_APIC_clock(void)
 	if (disable_apic_timer) {
 		printk(KERN_INFO "Disabling APIC timer\n");
 		/* No broadcast on UP ! */
-		if (num_possible_cpus() > 1)
+		if (num_possible_cpus() > 1) {
+			lapic_clockevent.mult = 1;
 			setup_APIC_timer();
+		}
 		return;
 	}
 
-- 
cgit v1.2.3-59-g8ed1b


From d504e39efd4e64a1a6e01dc85fd8a33fdb196dce Mon Sep 17 00:00:00 2001
From: Randy Dunlap <randy.dunlap@oracle.com>
Date: Wed, 30 Jan 2008 13:33:05 +0100
Subject: x86: discover_ebda section mismatch

Fix section mismatches.  discover_ebda() can be __init.

WARNING: vmlinux.o(.text+0x738a): Section mismatch: reference to .init.data:ebda_addr (between 'discover_ebda' and 'get_model_name')
WARNING: vmlinux.o(.text+0x73c4): Section mismatch: reference to .init.data:ebda_size (between 'discover_ebda' and 'get_model_name')

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index a7124bfb8578..07547febac7a 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -248,7 +248,7 @@ static inline void __init reserve_crashkernel(void)
 unsigned __initdata ebda_addr;
 unsigned __initdata ebda_size;
 
-static void discover_ebda(void)
+static void __init discover_ebda(void)
 {
 	/*
 	 * there is a real-mode segmented pointer pointing to the
-- 
cgit v1.2.3-59-g8ed1b


From 8866cd9dc9d0bbadcf361a14e0cdfecb66473087 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:33:06 +0100
Subject: x86: early_idt_handler improvements, 64-bit

It's not too pretty, but I found this made the "PANIC: early exception"
messages become much more reliably useful: 1. print the vector number,
2. print the %cs value, 3. handle error-code-pushing vs non-pushing vectors.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/head64.c  |  2 +-
 arch/x86/kernel/head_64.S | 34 ++++++++++++++++++++++++++++++----
 include/asm-x86/segment.h |  6 ++++++
 3 files changed, 37 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 4a1c1356c41a..85c1e6bf8022 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -59,7 +59,7 @@ void __init x86_64_start_kernel(char * real_mode_data)
 	zap_identity_mappings();
 
 	for (i = 0; i < IDT_ENTRIES; i++)
-		set_intr_gate(i, early_idt_handler);
+		set_intr_gate(i, &early_idt_handlers[i]);
 	load_idt((const struct desc_ptr *)&idt_descr);
 
 	early_printk("Kernel alive\n");
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index c31b1c96a9d3..8b4c35cb519a 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -267,14 +267,40 @@ init_rsp:
 bad_address:
 	jmp bad_address
 
+.macro early_idt_tramp first, last
+	.ifgt \last-\first
+	early_idt_tramp \first, \last-1
+	.endif
+	movl $\last,%esi
+	jmp early_idt_handler
+.endm
+
+	.globl early_idt_handlers
+early_idt_handlers:
+	early_idt_tramp 0, 63
+	early_idt_tramp 64, 127
+	early_idt_tramp 128, 191
+	early_idt_tramp 192, 255
+
 ENTRY(early_idt_handler)
 	cmpl $2,early_recursion_flag(%rip)
 	jz  1f
 	incl early_recursion_flag(%rip)
-	xorl %eax,%eax
-	movq 8(%rsp),%rsi	# get rip
-	movq (%rsp),%rdx
 	GET_CR2_INTO_RCX
+	movq %rcx,%r9
+	xorl %r8d,%r8d		# zero for error code
+	movl %esi,%ecx		# get vector number
+	# Test %ecx against mask of vectors that push error code.
+	cmpl $31,%ecx
+	ja 0f
+	movl $1,%eax
+	salq %cl,%rax
+	testl $0x27d00,%eax
+	je 0f
+	popq %r8		# get error code
+0:	movq 0(%rsp),%rcx	# get ip
+	movq 8(%rsp),%rdx	# get cs
+	xorl %eax,%eax
 	leaq early_idt_msg(%rip),%rdi
 	call early_printk
 	cmpl $2,early_recursion_flag(%rip)
@@ -291,7 +317,7 @@ early_recursion_flag:
 	.long 0
 
 early_idt_msg:
-	.asciz "PANIC: early exception rip %lx error %lx cr2 %lx\n"
+	.asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n"
 early_idt_ripmsg:
 	.asciz "RIP %s\n"
 
diff --git a/include/asm-x86/segment.h b/include/asm-x86/segment.h
index 57c8d3723836..23f0535fec61 100644
--- a/include/asm-x86/segment.h
+++ b/include/asm-x86/segment.h
@@ -195,4 +195,10 @@
 #define GDT_ENTRY_TLS_ENTRIES 3
 #define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES * 8)
 
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+extern const char early_idt_handlers[IDT_ENTRIES][10];
+#endif
+#endif
+
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 076f9776f5d8d131b36955db8641aba3893c2c1b Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:06 +0100
Subject: x86: make early printk selectable on 64-bit as well

Enable CONFIG_EMBEDDED to select CONFIG_EARLY_PRINTK on 64-bit as well.

saves ~2K:

   text    data     bss     dec     hex filename
   7290283 3672091 1907848 12870222         c4624e vmlinux.before
   7288373 3671795 1907848 12868016         c459b0 vmlinux.after

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.debug    | 2 +-
 arch/x86/kernel/head64.c  | 7 ++++++-
 arch/x86/kernel/head_64.S | 7 +++++++
 include/asm-x86/kdebug.h  | 1 -
 include/linux/kernel.h    | 3 +++
 kernel/printk.c           | 7 +++++++
 6 files changed, 24 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 15854b53badc..88420af98140 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -6,7 +6,7 @@ config TRACE_IRQFLAGS_SUPPORT
 source "lib/Kconfig.debug"
 
 config EARLY_PRINTK
-	bool "Early printk" if EMBEDDED && DEBUG_KERNEL && X86_32
+	bool "Early printk" if EMBEDDED
 	default y
 	help
 	  Write kernel log output directly into the VGA buffer or to a serial
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 85c1e6bf8022..87e031d4abf1 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -58,8 +58,13 @@ void __init x86_64_start_kernel(char * real_mode_data)
 	/* Make NULL pointers segfault */
 	zap_identity_mappings();
 
-	for (i = 0; i < IDT_ENTRIES; i++)
+	for (i = 0; i < IDT_ENTRIES; i++) {
+#ifdef CONFIG_EARLY_PRINTK
 		set_intr_gate(i, &early_idt_handlers[i]);
+#else
+		set_intr_gate(i, early_idt_handler);
+#endif
+	}
 	load_idt((const struct desc_ptr *)&idt_descr);
 
 	early_printk("Kernel alive\n");
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 8b4c35cb519a..1d5a7a361200 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -267,6 +267,7 @@ init_rsp:
 bad_address:
 	jmp bad_address
 
+#ifdef CONFIG_EARLY_PRINTK
 .macro early_idt_tramp first, last
 	.ifgt \last-\first
 	early_idt_tramp \first, \last-1
@@ -281,8 +282,10 @@ early_idt_handlers:
 	early_idt_tramp 64, 127
 	early_idt_tramp 128, 191
 	early_idt_tramp 192, 255
+#endif
 
 ENTRY(early_idt_handler)
+#ifdef CONFIG_EARLY_PRINTK
 	cmpl $2,early_recursion_flag(%rip)
 	jz  1f
 	incl early_recursion_flag(%rip)
@@ -311,8 +314,11 @@ ENTRY(early_idt_handler)
 	movq 8(%rsp),%rsi	# get rip again
 	call __print_symbol
 #endif
+#endif /* EARLY_PRINTK */
 1:	hlt
 	jmp 1b
+
+#ifdef CONFIG_EARLY_PRINTK
 early_recursion_flag:
 	.long 0
 
@@ -320,6 +326,7 @@ early_idt_msg:
 	.asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n"
 early_idt_ripmsg:
 	.asciz "RIP %s\n"
+#endif /* CONFIG_EARLY_PRINTK */
 
 .balign PAGE_SIZE
 
diff --git a/include/asm-x86/kdebug.h b/include/asm-x86/kdebug.h
index a5e5e3b7eb23..e9f42d1ac38f 100644
--- a/include/asm-x86/kdebug.h
+++ b/include/asm-x86/kdebug.h
@@ -22,7 +22,6 @@ enum die_val {
 	DIE_PAGE_FAULT,
 };
 
-extern void early_printk(const char *fmt, ...) __attribute__((format(printf,1,2)));
 extern void printk_address(unsigned long address);
 extern void die(const char *,struct pt_regs *,long);
 extern int __must_check __die(const char *, struct pt_regs *, long);
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index a7283c9beadf..ff356b2ee478 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -194,6 +194,9 @@ static inline int log_buf_read(int idx) { return 0; }
 static inline int log_buf_copy(char *dest, int idx, int len) { return 0; }
 #endif
 
+extern void __attribute__((format(printf, 1, 2)))
+	early_printk(const char *fmt, ...);
+
 unsigned long int_sqrt(unsigned long);
 
 extern int printk_ratelimit(void);
diff --git a/kernel/printk.c b/kernel/printk.c
index 3b7c968d0ef9..58bbec684119 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -36,6 +36,13 @@
 
 #include <asm/uaccess.h>
 
+/*
+ * Architectures can override it:
+ */
+void __attribute__((weak)) early_printk(const char *fmt, ...)
+{
+}
+
 #define __LOG_BUF_LEN	(1 << CONFIG_LOG_BUF_SHIFT)
 
 /* printk's without a loglevel use this.. */
-- 
cgit v1.2.3-59-g8ed1b


From 3d1f7cae883ce4aac99c661562111a25d52effe0 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:33:06 +0100
Subject: x86: fix 32-bit FRAME_POINTER chasing code

The current x86 32 bit FRAME_POINTER chasing code has a nasty bug in
that the EBP tracer doesn't actually update the value of EBP it is
tracing, so that the code doesn't actually switch to the irq stack
properly.

The result is a truncated backtrace:

 WARNING: at timeroops.c:8 kerneloops_regression_test() (Not tainted)
 Pid: 0, comm: swapper Not tainted 2.6.24-0.77.rc4.git4.fc9 #1
  [<c040649a>] show_trace_log_lvl+0x1a/0x2f
  [<c0406d41>] show_trace+0x12/0x14
  [<c0407061>] dump_stack+0x6c/0x72
  [<e0258049>] kerneloops_regression_test+0x44/0x46 [timeroops]
  [<c04371ac>] run_timer_softirq+0x127/0x18f
  [<c0434685>] __do_softirq+0x78/0xff
  [<c0407759>] do_softirq+0x74/0xf7
  =======================

This patch fixes the code to update EBP properly, and to check the EIP
before printing (as the non-framepointer backtracer does) so that
the same test backtrace now looks like this:

 WARNING: at timeroops.c:8 kerneloops_regression_test()
 Pid: 0, comm: swapper Not tainted 2.6.24-rc7 #4
  [<c0405d17>] show_trace_log_lvl+0x1a/0x2f
  [<c0406681>] show_trace+0x12/0x14
  [<c0406ef2>] dump_stack+0x6a/0x70
  [<e01f6040>] kerneloops_regression_test+0x3b/0x3d [timeroops]
  [<c0426f07>] run_timer_softirq+0x11b/0x17c
  [<c04243ac>] __do_softirq+0x42/0x94
  [<c040704c>] do_softirq+0x50/0xb6
  [<c04242a9>] irq_exit+0x37/0x67
  [<c040714c>] do_IRQ+0x9a/0xaf
  [<c04057da>] common_interrupt+0x2e/0x34
  [<c05807fe>] cpuidle_idle_call+0x52/0x78
  [<c04034f3>] cpu_idle+0x46/0x60
  [<c05fbbd3>] rest_init+0x43/0x45
  [<c070aa3d>] start_kernel+0x279/0x27f
  =======================

This shows that the backtrace goes all the way down to user context now.
This bug was found during the port to 64 bit of the frame pointer backtracer.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/traps_32.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 83df0f37ba75..acc9af260fac 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -125,7 +125,8 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
 		unsigned long addr;
 
 		addr = frame->return_address;
-		ops->address(data, addr);
+		if (__kernel_text_address(addr))
+			ops->address(data, addr);
 		/*
 		 * break out of recursive entries (such as
 		 * end_of_stack_stop_unwind_function). Also,
@@ -133,6 +134,7 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
 		 * move downwards!
 		 */
 		next = frame->next_frame;
+		bp = (unsigned long) next;
 		if (next <= frame)
 			break;
 		frame = next;
-- 
cgit v1.2.3-59-g8ed1b


From bc850d6b374fffd08336996f4b4d3bbd6bf427f6 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:33:07 +0100
Subject: x86: add the capability to print fuzzy backtraces

For enhancing the 32 bit EBP based backtracer, I need the capability
for the backtracer to tell it's customer that an entry is either
reliable or unreliable, and the backtrace printing code then needs to
print the unreliable ones slightly different.

This patch adds the basic capability, the next patch will add a user
of this capability.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/pci-gart_64.c |  2 +-
 arch/x86/kernel/process_64.c  |  4 ++--
 arch/x86/kernel/stacktrace.c  |  2 +-
 arch/x86/kernel/traps_32.c    |  8 +++++---
 arch/x86/kernel/traps_64.c    | 39 +++++++++++++++++++++++----------------
 arch/x86/mm/fault_64.c        |  2 +-
 arch/x86/oprofile/backtrace.c |  2 +-
 include/asm-x86/kdebug.h      |  5 +++--
 include/asm-x86/stacktrace.h  |  5 +++--
 9 files changed, 40 insertions(+), 29 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index d2b46b489412..04ca5c5221d7 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -167,7 +167,7 @@ static void dump_leak(void)
 	       iommu_leak_pages);
 	for (i = 0; i < iommu_leak_pages; i += 2) {
 		printk(KERN_DEBUG "%lu: ", iommu_pages-i);
-		printk_address((unsigned long) iommu_leak_tab[iommu_pages-i]);
+		printk_address((unsigned long) iommu_leak_tab[iommu_pages-i], 0);
 		printk(KERN_CONT "%c", (i+1)%2 == 0 ? '\n' : ' ');
 	}
 	printk(KERN_DEBUG "\n");
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index a0130eb2fa50..383760bfd283 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -329,7 +329,7 @@ void __show_regs(struct pt_regs * regs)
 		(int)strcspn(init_utsname()->version, " "),
 		init_utsname()->version);
 	printk("RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip);
-	printk_address(regs->ip);
+	printk_address(regs->ip, regs->bp);
 	printk("RSP: %04lx:%016lx  EFLAGS: %08lx\n", regs->ss, regs->sp,
 		regs->flags);
 	printk("RAX: %016lx RBX: %016lx RCX: %016lx\n",
@@ -377,7 +377,7 @@ void show_regs(struct pt_regs *regs)
 {
 	printk("CPU %d:", smp_processor_id());
 	__show_regs(regs);
-	show_trace(NULL, regs, (void *)(regs + 1));
+	show_trace(NULL, regs, (void *)(regs + 1), regs->bp);
 }
 
 /*
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index c571edd11878..8c4e4f5bf040 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -22,7 +22,7 @@ static int save_stack_stack(void *data, char *name)
 	return -1;
 }
 
-static void save_stack_address(void *data, unsigned long addr)
+static void save_stack_address(void *data, unsigned long addr, int reliable)
 {
 	struct stack_trace *trace = (struct stack_trace *)data;
 	if (trace->skip > 0) {
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index acc9af260fac..8ef8a9ddfec6 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -126,7 +126,7 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
 
 		addr = frame->return_address;
 		if (__kernel_text_address(addr))
-			ops->address(data, addr);
+			ops->address(data, addr, 1);
 		/*
 		 * break out of recursive entries (such as
 		 * end_of_stack_stop_unwind_function). Also,
@@ -145,7 +145,7 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
 
 		addr = *stack++;
 		if (__kernel_text_address(addr))
-			ops->address(data, addr);
+			ops->address(data, addr, 1);
 	}
 #endif
 	return bp;
@@ -220,9 +220,11 @@ static int print_trace_stack(void *data, char *name)
 /*
  * Print one address/symbol entries per line.
  */
-static void print_trace_address(void *data, unsigned long addr)
+static void print_trace_address(void *data, unsigned long addr, int reliable)
 {
 	printk("%s [<%08lx>] ", (char *)data, addr);
+	if (!reliable)
+		printk("? ");
 	print_symbol("%s\n", addr);
 	touch_nmi_watchdog();
 }
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 37b07d08704b..62c4d8f46ee9 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -99,13 +99,14 @@ static inline void preempt_conditional_cli(struct pt_regs *regs)
 int kstack_depth_to_print = 12;
 
 #ifdef CONFIG_KALLSYMS
-void printk_address(unsigned long address)
+void printk_address(unsigned long address, int reliable)
 {
 	unsigned long offset = 0, symsize;
 	const char *symname;
 	char *modname;
 	char *delim = ":";
 	char namebuf[128];
+	char reliab[4] = "";;
 
 	symname = kallsyms_lookup(address, &symsize, &offset,
 					&modname, namebuf);
@@ -113,13 +114,16 @@ void printk_address(unsigned long address)
 		printk(" [<%016lx>]\n", address);
 		return;
 	}
+	if (!reliable)
+		strcpy(reliab, "? ");
+
 	if (!modname)
 		modname = delim = ""; 		
-	printk(" [<%016lx>] %s%s%s%s+0x%lx/0x%lx\n",
-		address, delim, modname, delim, symname, offset, symsize);
+	printk(" [<%016lx>] %s%s%s%s%s+0x%lx/0x%lx\n",
+		address, reliab, delim, modname, delim, symname, offset, symsize);
 }
 #else
-void printk_address(unsigned long address)
+void printk_address(unsigned long address, int reliable)
 {
 	printk(" [<%016lx>]\n", address);
 }
@@ -215,7 +219,7 @@ static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
 }
 
 void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
-		unsigned long *stack,
+		unsigned long *stack, unsigned long bp,
 		const struct stacktrace_ops *ops, void *data)
 {
 	const unsigned cpu = get_cpu();
@@ -252,7 +256,7 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
 			 * down the cause of the crash will be able to figure \
 			 * out the call path that was taken. \
 			 */ \
-			ops->address(data, addr);   \
+			ops->address(data, addr, 1);   \
 		} \
 	} while (0)
 
@@ -331,10 +335,10 @@ static int print_trace_stack(void *data, char *name)
 	return 0;
 }
 
-static void print_trace_address(void *data, unsigned long addr)
+static void print_trace_address(void *data, unsigned long addr, int reliable)
 {
 	touch_nmi_watchdog();
-	printk_address(addr);
+	printk_address(addr, reliable);
 }
 
 static const struct stacktrace_ops print_trace_ops = {
@@ -345,15 +349,17 @@ static const struct stacktrace_ops print_trace_ops = {
 };
 
 void
-show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long *stack)
+show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long *stack,
+		unsigned long bp)
 {
 	printk("\nCall Trace:\n");
-	dump_trace(tsk, regs, stack, &print_trace_ops, NULL);
+	dump_trace(tsk, regs, stack, bp, &print_trace_ops, NULL);
 	printk("\n");
 }
 
 static void
-_show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *sp)
+_show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *sp,
+							unsigned long bp)
 {
 	unsigned long *stack;
 	int i;
@@ -387,12 +393,12 @@ _show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *sp)
 		printk(" %016lx", *stack++);
 		touch_nmi_watchdog();
 	}
-	show_trace(tsk, regs, sp);
+	show_trace(tsk, regs, sp, bp);
 }
 
 void show_stack(struct task_struct *tsk, unsigned long * sp)
 {
-	_show_stack(tsk, NULL, sp);
+	_show_stack(tsk, NULL, sp, 0);
 }
 
 /*
@@ -401,13 +407,14 @@ void show_stack(struct task_struct *tsk, unsigned long * sp)
 void dump_stack(void)
 {
 	unsigned long dummy;
+	unsigned long bp = 0;
 
 	printk("Pid: %d, comm: %.20s %s %s %.*s\n",
 		current->pid, current->comm, print_tainted(),
 		init_utsname()->release,
 		(int)strcspn(init_utsname()->version, " "),
 		init_utsname()->version);
-	show_trace(NULL, NULL, &dummy);
+	show_trace(NULL, NULL, &dummy, bp);
 }
 
 EXPORT_SYMBOL(dump_stack);
@@ -432,7 +439,7 @@ void show_registers(struct pt_regs *regs)
 	 */
 	if (in_kernel) {
 		printk("Stack: ");
-		_show_stack(NULL, regs, (unsigned long*)sp);
+		_show_stack(NULL, regs, (unsigned long *)sp, regs->bp);
 
 		printk("\nCode: ");
 		if (regs->ip < PAGE_OFFSET)
@@ -527,7 +534,7 @@ int __kprobes __die(const char * str, struct pt_regs * regs, long err)
 	add_taint(TAINT_DIE);
 	/* Executive summary in case the oops scrolled away */
 	printk(KERN_ALERT "RIP ");
-	printk_address(regs->ip);
+	printk_address(regs->ip, regs->bp);
 	printk(" RSP <%016lx>\n", regs->sp);
 	if (kexec_should_crash(current))
 		crash_kexec(regs);
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index e82832961d72..cf7e99895b91 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -578,7 +578,7 @@ no_context:
 	else
 		printk(KERN_ALERT "Unable to handle kernel paging request");
 	printk(" at %016lx RIP: \n" KERN_ALERT, address);
-	printk_address(regs->ip);
+	printk_address(regs->ip, regs->bp);
 	dump_pagetable(address);
 	tsk->thread.cr2 = address;
 	tsk->thread.trap_no = 14;
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index cc353a0b183e..671a7ecf11aa 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -32,7 +32,7 @@ static int backtrace_stack(void *data, char *name)
 	return 0;
 }
 
-static void backtrace_address(void *data, unsigned long addr)
+static void backtrace_address(void *data, unsigned long addr, int reliable)
 {
 	unsigned int *depth = data;
 
diff --git a/include/asm-x86/kdebug.h b/include/asm-x86/kdebug.h
index e9f42d1ac38f..dd442a1632c0 100644
--- a/include/asm-x86/kdebug.h
+++ b/include/asm-x86/kdebug.h
@@ -22,12 +22,13 @@ enum die_val {
 	DIE_PAGE_FAULT,
 };
 
-extern void printk_address(unsigned long address);
+extern void printk_address(unsigned long address, int reliable);
 extern void die(const char *,struct pt_regs *,long);
 extern int __must_check __die(const char *, struct pt_regs *, long);
 extern void show_registers(struct pt_regs *regs);
 extern void __show_registers(struct pt_regs *, int all);
-extern void show_trace(struct task_struct *, struct pt_regs *, unsigned long *);
+extern void show_trace(struct task_struct *t, struct pt_regs *regs,
+			unsigned long *sp, unsigned long bp);
 extern void __show_regs(struct pt_regs *regs);
 extern void show_regs(struct pt_regs *regs);
 extern void dump_pagetable(unsigned long);
diff --git a/include/asm-x86/stacktrace.h b/include/asm-x86/stacktrace.h
index 70dd5bae3235..30f82526a8e2 100644
--- a/include/asm-x86/stacktrace.h
+++ b/include/asm-x86/stacktrace.h
@@ -9,12 +9,13 @@ struct stacktrace_ops {
 	void (*warning)(void *data, char *msg);
 	/* msg must contain %s for the symbol */
 	void (*warning_symbol)(void *data, char *msg, unsigned long symbol);
-	void (*address)(void *data, unsigned long address);
+	void (*address)(void *data, unsigned long address, int reliable);
 	/* On negative return stop dumping */
 	int (*stack)(void *data, char *name);
 };
 
-void dump_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long *stack,
+void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
+		unsigned long *stack, unsigned long bp,
 		const struct stacktrace_ops *ops, void *data);
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From e9d4efddbec3d852d435b370b9c40ff7ac24afe6 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:33:07 +0100
Subject: x86: improve the 32 bit Frame Pointer backtracer to also use the
 traditional backtrace

The 32 bit Frame Pointer backtracer code checks if the EBP is valid
to do a backtrace; however currently on a failure it just gives up
and prints nothing. That's not very nice; we can do better and still
print a decent backtrace.

This patch changes the backtracer to use the regular backtracing algorithm
at the same time as the EBP backtracer; the EBP backtracer is basically
used to figure out which part of the backtrace are reliable vs those
which are likely to be noise.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/traps_32.c | 44 ++++++++++++++++++++------------------------
 1 file changed, 20 insertions(+), 24 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 8ef8a9ddfec6..959d40edecd5 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -118,36 +118,32 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
 				unsigned long *stack, unsigned long bp,
 				const struct stacktrace_ops *ops, void *data)
 {
-#ifdef	CONFIG_FRAME_POINTER
 	struct stack_frame *frame = (struct stack_frame *)bp;
-	while (valid_stack_ptr(tinfo, frame, sizeof(*frame))) {
-		struct stack_frame *next;
-		unsigned long addr;
 
-		addr = frame->return_address;
-		if (__kernel_text_address(addr))
-			ops->address(data, addr, 1);
-		/*
-		 * break out of recursive entries (such as
-		 * end_of_stack_stop_unwind_function). Also,
-		 * we can never allow a frame pointer to
-		 * move downwards!
-		 */
-		next = frame->next_frame;
-		bp = (unsigned long) next;
-		if (next <= frame)
-			break;
-		frame = next;
-	}
-#else
+	/*
+	 * if EBP is "deeper" into the stack than the actual stack pointer,
+	 * we need to rewind the stack pointer a little to start at the
+	 * first stack frame, but only if EBP is in this stack frame.
+	 */
+	if (stack > (unsigned long *) bp
+			&& valid_stack_ptr(tinfo, frame, sizeof(*frame)))
+		stack = (unsigned long *) bp;
+
 	while (valid_stack_ptr(tinfo, stack, sizeof(*stack))) {
 		unsigned long addr;
 
-		addr = *stack++;
-		if (__kernel_text_address(addr))
-			ops->address(data, addr, 1);
+		addr = *stack;
+		if (__kernel_text_address(addr)) {
+			if ((unsigned long) stack == bp + 4) {
+				ops->address(data, addr, 1);
+				frame = frame->next_frame;
+				bp = (unsigned long) frame;
+			} else {
+				ops->address(data, addr, 0);
+			}
+		}
+		stack++;
 	}
-#endif
 	return bp;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 5bc27dc2f55fd3043597b5a8de6536183f28a449 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:33:07 +0100
Subject: x86: pull bp calculation earlier into the backtrace path

Right now, we take the stack pointer early during the backtrace path, but
only calculate bp several functions deep later, making it hard to reconcile
the stack and bp backtraces (as well as showing several internal backtrace
functions on the stack with bp based backtracing).

This patch moves the bp taking to the same place we take the stack pointer;
sadly this ripples through several layers of the back tracing stack,
but it's not all that bad in the end I hope.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_32.c  |  2 +-
 arch/x86/kernel/stacktrace.c  |  7 ++++---
 arch/x86/kernel/traps_32.c    | 39 +++++++++++++++++----------------------
 arch/x86/oprofile/backtrace.c |  2 +-
 4 files changed, 23 insertions(+), 27 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 35a6f318c541..7a61b54649de 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -379,7 +379,7 @@ void __show_registers(struct pt_regs *regs, int all)
 void show_regs(struct pt_regs *regs)
 {
 	__show_registers(regs, 1);
-	show_trace(NULL, regs, &regs->sp);
+	show_trace(NULL, regs, &regs->sp, regs->bp);
 }
 
 /*
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 8c4e4f5bf040..4f4021b5bfb5 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -33,7 +33,8 @@ static void save_stack_address(void *data, unsigned long addr, int reliable)
 		trace->entries[trace->nr_entries++] = addr;
 }
 
-static void save_stack_address_nosched(void *data, unsigned long addr)
+static void
+save_stack_address_nosched(void *data, unsigned long addr, int reliable)
 {
 	struct stack_trace *trace = (struct stack_trace *)data;
 	if (in_sched_functions(addr))
@@ -65,14 +66,14 @@ static const struct stacktrace_ops save_stack_ops_nosched = {
  */
 void save_stack_trace(struct stack_trace *trace)
 {
-	dump_trace(current, NULL, NULL, &save_stack_ops, trace);
+	dump_trace(current, NULL, NULL, 0, &save_stack_ops, trace);
 	if (trace->nr_entries < trace->max_entries)
 		trace->entries[trace->nr_entries++] = ULONG_MAX;
 }
 
 void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 {
-	dump_trace(tsk, NULL, NULL, &save_stack_ops_nosched, trace);
+	dump_trace(tsk, NULL, NULL, 0, &save_stack_ops_nosched, trace);
 	if (trace->nr_entries < trace->max_entries)
 		trace->entries[trace->nr_entries++] = ULONG_MAX;
 }
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 959d40edecd5..6f3bb287c702 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -120,15 +120,6 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
 {
 	struct stack_frame *frame = (struct stack_frame *)bp;
 
-	/*
-	 * if EBP is "deeper" into the stack than the actual stack pointer,
-	 * we need to rewind the stack pointer a little to start at the
-	 * first stack frame, but only if EBP is in this stack frame.
-	 */
-	if (stack > (unsigned long *) bp
-			&& valid_stack_ptr(tinfo, frame, sizeof(*frame)))
-		stack = (unsigned long *) bp;
-
 	while (valid_stack_ptr(tinfo, stack, sizeof(*stack))) {
 		unsigned long addr;
 
@@ -139,7 +130,7 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
 				frame = frame->next_frame;
 				bp = (unsigned long) frame;
 			} else {
-				ops->address(data, addr, 0);
+				ops->address(data, addr, bp == 0);
 			}
 		}
 		stack++;
@@ -150,11 +141,9 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
 #define MSG(msg) ops->warning(data, msg)
 
 void dump_trace(struct task_struct *task, struct pt_regs *regs,
-	        unsigned long *stack,
+		unsigned long *stack, unsigned long bp,
 		const struct stacktrace_ops *ops, void *data)
 {
-	unsigned long bp = 0;
-
 	if (!task)
 		task = current;
 
@@ -234,20 +223,20 @@ static const struct stacktrace_ops print_trace_ops = {
 
 static void
 show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
-		   unsigned long * stack, char *log_lvl)
+		unsigned long *stack, unsigned long bp, char *log_lvl)
 {
-	dump_trace(task, regs, stack, &print_trace_ops, log_lvl);
+	dump_trace(task, regs, stack, bp, &print_trace_ops, log_lvl);
 	printk("%s =======================\n", log_lvl);
 }
 
 void show_trace(struct task_struct *task, struct pt_regs *regs,
-		unsigned long * stack)
+		unsigned long *stack, unsigned long bp)
 {
-	show_trace_log_lvl(task, regs, stack, "");
+	show_trace_log_lvl(task, regs, stack, bp, "");
 }
 
 static void show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
-			       unsigned long *sp, char *log_lvl)
+		       unsigned long *sp, unsigned long bp, char *log_lvl)
 {
 	unsigned long *stack;
 	int i;
@@ -268,13 +257,13 @@ static void show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
 		printk("%08lx ", *stack++);
 	}
 	printk("\n%sCall Trace:\n", log_lvl);
-	show_trace_log_lvl(task, regs, sp, log_lvl);
+	show_trace_log_lvl(task, regs, sp, bp, log_lvl);
 }
 
 void show_stack(struct task_struct *task, unsigned long *sp)
 {
 	printk("       ");
-	show_stack_log_lvl(task, NULL, sp, "");
+	show_stack_log_lvl(task, NULL, sp, 0, "");
 }
 
 /*
@@ -283,13 +272,19 @@ void show_stack(struct task_struct *task, unsigned long *sp)
 void dump_stack(void)
 {
 	unsigned long stack;
+	unsigned long bp = 0;
+
+#ifdef CONFIG_FRAME_POINTER
+	if (!bp)
+		asm("movl %%ebp, %0" : "=r" (bp):);
+#endif
 
 	printk("Pid: %d, comm: %.20s %s %s %.*s\n",
 		current->pid, current->comm, print_tainted(),
 		init_utsname()->release,
 		(int)strcspn(init_utsname()->version, " "),
 		init_utsname()->version);
-	show_trace(current, NULL, &stack);
+	show_trace(current, NULL, &stack, bp);
 }
 
 EXPORT_SYMBOL(dump_stack);
@@ -314,7 +309,7 @@ void show_registers(struct pt_regs *regs)
 		unsigned char c;
 
 		printk("\n" KERN_EMERG "Stack: ");
-		show_stack_log_lvl(NULL, regs, &regs->sp, KERN_EMERG);
+		show_stack_log_lvl(NULL, regs, &regs->sp, 0, KERN_EMERG);
 
 		printk(KERN_EMERG "Code: ");
 
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index 671a7ecf11aa..0ca4815a2938 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -81,7 +81,7 @@ x86_backtrace(struct pt_regs * const regs, unsigned int depth)
 
 	if (!user_mode_vm(regs)) {
 		if (depth)
-			dump_trace(NULL, regs, (unsigned long *)stack,
+			dump_trace(NULL, regs, (unsigned long *)stack, 0,
 				   &backtrace_ops, &depth);
 		return;
 	}
-- 
cgit v1.2.3-59-g8ed1b


From e4a94568b18c5d7d72741ebde5736d77d235743c Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:33:07 +0100
Subject: x86: turn 64 bit x86 HANDLE_STACK into print_context_stack like 32
 bit has

This patch turns the x86 64 bit HANDLE_STACK macro in the backtrace code
into a function, just like 32 bit has. This is needed pre work in order to
get exact backtraces for CONFIG_FRAME_POINTER to work.

The function and it's arguments are not the same as 32 bit; due to the
exception/interrupt stack way of x86-64 there are a few differences.

This patch should not have any behavior changes, only code movement.

Due to the fragility and importance of the backtrace code, this needs to be
well reviewed and well tested before merging into mainlne.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/traps_64.c | 74 ++++++++++++++++++++++++++++------------------
 1 file changed, 45 insertions(+), 29 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 62c4d8f46ee9..b8303ed95057 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -212,10 +212,46 @@ static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack,
  * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack
  */
 
-static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
+static inline int valid_stack_ptr(struct thread_info *tinfo,
+			void *p, unsigned int size, void *end)
 {
 	void *t = (void *)tinfo;
-        return p > t && p < t + THREAD_SIZE - 3;
+	if (end) {
+		if (p < end && p >= (end-THREAD_SIZE))
+			return 1;
+		else
+			return 0;
+	}
+	return p > t && p < t + THREAD_SIZE - size;
+}
+
+static inline unsigned long print_context_stack(struct thread_info *tinfo,
+				unsigned long *stack, unsigned long bp,
+				const struct stacktrace_ops *ops, void *data,
+				unsigned long *end)
+{
+	/*
+	 * Print function call entries within a stack. 'cond' is the
+	 * "end of stackframe" condition, that the 'stack++'
+	 * iteration will eventually trigger.
+	 */
+	while (valid_stack_ptr(tinfo, stack, 3, end)) {
+		unsigned long addr = *stack++;
+		/* Use unlocked access here because except for NMIs
+		   we should be already protected against module unloads */
+		if (__kernel_text_address(addr)) {
+			/*
+			 * If the address is either in the text segment of the
+			 * kernel, or in the region which contains vmalloc'ed
+			 * memory, it *may* be the address of a calling
+			 * routine; if so, print it so that someone tracing
+			 * down the cause of the crash will be able to figure
+			 * out the call path that was taken.
+			 */
+			ops->address(data, addr, 1);
+		}
+	}
+	return bp;
 }
 
 void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
@@ -229,6 +265,7 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
 
 	if (!tsk)
 		tsk = current;
+	tinfo = task_thread_info(tsk);
 
 	if (!stack) {
 		unsigned long dummy;
@@ -237,28 +274,6 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
 			stack = (unsigned long *)tsk->thread.sp;
 	}
 
-	/*
-	 * Print function call entries within a stack. 'cond' is the
-	 * "end of stackframe" condition, that the 'stack++'
-	 * iteration will eventually trigger.
-	 */
-#define HANDLE_STACK(cond) \
-	do while (cond) { \
-		unsigned long addr = *stack++; \
-		/* Use unlocked access here because except for NMIs	\
-		   we should be already protected against module unloads */ \
-		if (__kernel_text_address(addr)) { \
-			/* \
-			 * If the address is either in the text segment of the \
-			 * kernel, or in the region which contains vmalloc'ed \
-			 * memory, it *may* be the address of a calling \
-			 * routine; if so, print it so that someone tracing \
-			 * down the cause of the crash will be able to figure \
-			 * out the call path that was taken. \
-			 */ \
-			ops->address(data, addr, 1);   \
-		} \
-	} while (0)
 
 	/*
 	 * Print function call entries in all stacks, starting at the
@@ -274,7 +289,9 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
 		if (estack_end) {
 			if (ops->stack(data, id) < 0)
 				break;
-			HANDLE_STACK (stack < estack_end);
+
+			print_context_stack(tinfo, stack, 0, ops,
+						data, estack_end);
 			ops->stack(data, "<EOE>");
 			/*
 			 * We link to the next stack via the
@@ -292,7 +309,8 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
 			if (stack >= irqstack && stack < irqstack_end) {
 				if (ops->stack(data, "IRQ") < 0)
 					break;
-				HANDLE_STACK (stack < irqstack_end);
+				print_context_stack(tinfo, stack, 0, ops,
+							 data, irqstack_end);
 				/*
 				 * We link to the next stack (which would be
 				 * the process stack normally) the last
@@ -310,9 +328,7 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
 	/*
 	 * This handles the process stack:
 	 */
-	tinfo = task_thread_info(tsk);
-	HANDLE_STACK (valid_stack_ptr(tinfo, stack));
-#undef HANDLE_STACK
+	print_context_stack(tinfo, stack, 0, ops, data, NULL);
 	put_cpu();
 }
 EXPORT_SYMBOL(dump_trace);
-- 
cgit v1.2.3-59-g8ed1b


From 80b51f310b6f55006a265d087b8f48744e65663d Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:33:07 +0100
Subject: x86: use the stack frames to get exact stack-traces for
 CONFIG_FRAMEPOINTER on x86-64

x86 32 bit already has this feature: This patch uses the stack frames with
frame pointer into an exact stack trace, by following the frame pointer.
This only affects kernels built with the CONFIG_FRAME_POINTER config option
enabled, and greatly reduces the amount of noise in oopses.

This code uses the traditional method of doing backtraces, but if it
finds a valid frame pointer chain, will use that to show which parts
of the backtrace are reliable and which parts are not

Due to the fragility and importance of the backtrace code, this needs to
be well reviewed and well tested before merging into mainlne.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/traps_64.c | 67 ++++++++++++++++++++++++++++++----------------
 1 file changed, 44 insertions(+), 23 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index b8303ed95057..304ca6b4a1ca 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -225,31 +225,34 @@ static inline int valid_stack_ptr(struct thread_info *tinfo,
 	return p > t && p < t + THREAD_SIZE - size;
 }
 
+/* The form of the top of the frame on the stack */
+struct stack_frame {
+	struct stack_frame *next_frame;
+	unsigned long return_address;
+};
+
+
 static inline unsigned long print_context_stack(struct thread_info *tinfo,
 				unsigned long *stack, unsigned long bp,
 				const struct stacktrace_ops *ops, void *data,
 				unsigned long *end)
 {
-	/*
-	 * Print function call entries within a stack. 'cond' is the
-	 * "end of stackframe" condition, that the 'stack++'
-	 * iteration will eventually trigger.
-	 */
-	while (valid_stack_ptr(tinfo, stack, 3, end)) {
-		unsigned long addr = *stack++;
-		/* Use unlocked access here because except for NMIs
-		   we should be already protected against module unloads */
+	struct stack_frame *frame = (struct stack_frame *)bp;
+
+	while (valid_stack_ptr(tinfo, stack, sizeof(*stack), end)) {
+		unsigned long addr;
+
+		addr = *stack;
 		if (__kernel_text_address(addr)) {
-			/*
-			 * If the address is either in the text segment of the
-			 * kernel, or in the region which contains vmalloc'ed
-			 * memory, it *may* be the address of a calling
-			 * routine; if so, print it so that someone tracing
-			 * down the cause of the crash will be able to figure
-			 * out the call path that was taken.
-			 */
-			ops->address(data, addr, 1);
+			if ((unsigned long) stack == bp + 8) {
+				ops->address(data, addr, 1);
+				frame = frame->next_frame;
+				bp = (unsigned long) frame;
+			} else {
+				ops->address(data, addr, bp == 0);
+			}
 		}
+		stack++;
 	}
 	return bp;
 }
@@ -274,6 +277,19 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
 			stack = (unsigned long *)tsk->thread.sp;
 	}
 
+#ifdef CONFIG_FRAME_POINTER
+	if (!bp) {
+		if (tsk == current) {
+			/* Grab bp right from our regs */
+			asm("movq %%rbp, %0" : "=r" (bp):);
+		} else {
+			/* bp is the last reg pushed by switch_to */
+			bp = *(unsigned long *) tsk->thread.sp;
+		}
+	}
+#endif
+
+
 
 	/*
 	 * Print function call entries in all stacks, starting at the
@@ -290,8 +306,8 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
 			if (ops->stack(data, id) < 0)
 				break;
 
-			print_context_stack(tinfo, stack, 0, ops,
-						data, estack_end);
+			bp = print_context_stack(tinfo, stack, bp, ops,
+							data, estack_end);
 			ops->stack(data, "<EOE>");
 			/*
 			 * We link to the next stack via the
@@ -309,8 +325,8 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
 			if (stack >= irqstack && stack < irqstack_end) {
 				if (ops->stack(data, "IRQ") < 0)
 					break;
-				print_context_stack(tinfo, stack, 0, ops,
-							 data, irqstack_end);
+				bp = print_context_stack(tinfo, stack, bp,
+						ops, data, irqstack_end);
 				/*
 				 * We link to the next stack (which would be
 				 * the process stack normally) the last
@@ -328,7 +344,7 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
 	/*
 	 * This handles the process stack:
 	 */
-	print_context_stack(tinfo, stack, 0, ops, data, NULL);
+	bp = print_context_stack(tinfo, stack, bp, ops, data, NULL);
 	put_cpu();
 }
 EXPORT_SYMBOL(dump_trace);
@@ -425,6 +441,11 @@ void dump_stack(void)
 	unsigned long dummy;
 	unsigned long bp = 0;
 
+#ifdef CONFIG_FRAME_POINTER
+	if (!bp)
+		asm("movq %%rbp, %0" : "=r" (bp):);
+#endif
+
 	printk("Pid: %d, comm: %.20s %s %s %.*s\n",
 		current->pid, current->comm, print_tainted(),
 		init_utsname()->release,
-- 
cgit v1.2.3-59-g8ed1b


From a25bd94964e87b1b93903a822fba5025d995d4da Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:33:08 +0100
Subject: x86: add the "print code before the trapping instruction" feature to
 64 bit

The 32 bit x86 tree has a very useful feature that prints the Code: line
for the code even before the trapping instrution (and the start of the
trapping instruction is then denoted with a <>). Unfortunately, the 64 bit
x86 tree does not yet have this feature, making diagnosing backtraces harder
than needed.

This patch adds this feature in the same was as the 32 bit tree has
(including the same kernel boot parameter), and including a bugfix
to make the code use probe_kernel_address() rarther than a buggy (deadlocking)
__get_user.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/kernel-parameters.txt |  4 ++--
 arch/x86/kernel/traps_64.c          | 44 +++++++++++++++++++++++++++----------
 2 files changed, 35 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e7910f8b4fcc..40db7dd1d92a 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -416,8 +416,8 @@ and is between 256 and 4096 characters. It is defined in the file
 			[SPARC64] tick
 			[X86-64] hpet,tsc
 
-	code_bytes	[IA32] How many bytes of object code to print in an
-			oops report.
+	code_bytes	[IA32/X86_64] How many bytes of object code to print
+			in an oops report.
 			Range: 0 - 8192
 			Default: 64
 
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 304ca6b4a1ca..0bba7924604e 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -74,6 +74,8 @@ asmlinkage void alignment_check(void);
 asmlinkage void machine_check(void);
 asmlinkage void spurious_interrupt_bug(void);
 
+static unsigned int code_bytes = 64;
+
 static inline void conditional_sti(struct pt_regs *regs)
 {
 	if (regs->flags & X86_EFLAGS_IF)
@@ -459,12 +461,15 @@ EXPORT_SYMBOL(dump_stack);
 void show_registers(struct pt_regs *regs)
 {
 	int i;
-	int in_kernel = !user_mode(regs);
 	unsigned long sp;
 	const int cpu = smp_processor_id();
 	struct task_struct *cur = cpu_pda(cpu)->pcurrent;
+	u8 *ip;
+	unsigned int code_prologue = code_bytes * 43 / 64;
+	unsigned int code_len = code_bytes;
 
 	sp = regs->sp;
+	ip = (u8 *) regs->ip - code_prologue;
 	printk("CPU %d ", cpu);
 	__show_regs(regs);
 	printk("Process %s (pid: %d, threadinfo %p, task %p)\n",
@@ -474,22 +479,28 @@ void show_registers(struct pt_regs *regs)
 	 * When in-kernel, we also print out the stack and code at the
 	 * time of the fault..
 	 */
-	if (in_kernel) {
+	if (!user_mode(regs)) {
+		unsigned char c;
 		printk("Stack: ");
 		_show_stack(NULL, regs, (unsigned long *)sp, regs->bp);
+		printk("\n");
 
-		printk("\nCode: ");
-		if (regs->ip < PAGE_OFFSET)
-			goto bad;
-
-		for (i=0; i<20; i++) {
-			unsigned char c;
-			if (__get_user(c, &((unsigned char*)regs->ip)[i])) {
-bad:
+		printk(KERN_EMERG "Code: ");
+		if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
+			/* try starting at RIP */
+			ip = (u8 *) regs->ip;
+			code_len = code_len - code_prologue + 1;
+		}
+		for (i = 0; i < code_len; i++, ip++) {
+			if (ip < (u8 *)PAGE_OFFSET ||
+					probe_kernel_address(ip, c)) {
 				printk(" Bad RIP value.");
 				break;
 			}
-			printk("%02x ", c);
+			if (ip == (u8 *)regs->ip)
+				printk("<%02x> ", c);
+			else
+				printk("%02x ", c);
 		}
 	}
 	printk("\n");
@@ -1164,3 +1175,14 @@ static int __init kstack_setup(char *s)
 	return 0;
 }
 early_param("kstack", kstack_setup);
+
+
+static int __init code_bytes_setup(char *s)
+{
+	code_bytes = simple_strtoul(s, NULL, 0);
+	if (code_bytes > 8192)
+		code_bytes = 8192;
+
+	return 1;
+}
+__setup("code_bytes=", code_bytes_setup);
-- 
cgit v1.2.3-59-g8ed1b


From aafbd7eb2057edfc9a17b258e3f0258a4e6d8198 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:33:08 +0100
Subject: x86: make printk_address regs->ip always reliable

printk_address()'s second parameter is the reliability indication,
not the ebp. If we're printing regs->ip we're reliable by definition,
so pass a 1 here.

Signed-off-by: Arjan van de Ven
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_64.c | 2 +-
 arch/x86/kernel/traps_64.c   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 383760bfd283..4e65ae8a54bf 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -329,7 +329,7 @@ void __show_regs(struct pt_regs * regs)
 		(int)strcspn(init_utsname()->version, " "),
 		init_utsname()->version);
 	printk("RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip);
-	printk_address(regs->ip, regs->bp);
+	printk_address(regs->ip, 1);
 	printk("RSP: %04lx:%016lx  EFLAGS: %08lx\n", regs->ss, regs->sp,
 		regs->flags);
 	printk("RAX: %016lx RBX: %016lx RCX: %016lx\n",
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 0bba7924604e..814801f4eb9e 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -582,7 +582,7 @@ int __kprobes __die(const char * str, struct pt_regs * regs, long err)
 	add_taint(TAINT_DIE);
 	/* Executive summary in case the oops scrolled away */
 	printk(KERN_ALERT "RIP ");
-	printk_address(regs->ip, regs->bp);
+	printk_address(regs->ip, 1);
 	printk(" RSP <%016lx>\n", regs->sp);
 	if (kexec_should_crash(current))
 		crash_kexec(regs);
-- 
cgit v1.2.3-59-g8ed1b


From e91a3b4353577c7d38b77dd1293fc3d0a173e8e6 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:08 +0100
Subject: x86: smp_scan_config() debugging printouts

These are useful in figuring out early-mapping problems.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/mpparse_32.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/mpparse_32.c b/arch/x86/kernel/mpparse_32.c
index a4c05372626b..cc06eae1b037 100644
--- a/arch/x86/kernel/mpparse_32.c
+++ b/arch/x86/kernel/mpparse_32.c
@@ -721,7 +721,7 @@ static int __init smp_scan_config (unsigned long base, unsigned long length)
 	unsigned long *bp = phys_to_virt(base);
 	struct intel_mp_floating *mpf;
 
-	Dprintk("Scan SMP from %p for %ld bytes.\n", bp,length);
+	printk(KERN_INFO "Scan SMP from %p for %ld bytes.\n", bp,length);
 	if (sizeof(*mpf) != 16)
 		printk("Error: MPF size\n");
 
@@ -734,8 +734,8 @@ static int __init smp_scan_config (unsigned long base, unsigned long length)
 				|| (mpf->mpf_specification == 4)) ) {
 
 			smp_found_config = 1;
-			printk(KERN_INFO "found SMP MP-table at %08lx\n",
-						virt_to_phys(mpf));
+			printk(KERN_INFO "found SMP MP-table at [%p] %08lx\n",
+				mpf, virt_to_phys(mpf));
 			reserve_bootmem(virt_to_phys(mpf), PAGE_SIZE);
 			if (mpf->mpf_physptr) {
 				/*
-- 
cgit v1.2.3-59-g8ed1b


From 306c142f99caef5a30a0d61a39a956c069941b63 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:08 +0100
Subject: x86: pat: e820 cleanup

NOP change.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap_64.c  | 4 +---
 include/asm-x86/e820.h    | 3 +++
 include/asm-x86/e820_64.h | 5 +++++
 3 files changed, 9 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
index b03db4ca9cad..6fbd3c7932e0 100644
--- a/arch/x86/mm/ioremap_64.c
+++ b/arch/x86/mm/ioremap_64.c
@@ -19,6 +19,7 @@
 #include <asm/tlbflush.h>
 #include <asm/cacheflush.h>
 #include <asm/proto.h>
+#include <asm/e820.h>
 
 unsigned long __phys_addr(unsigned long x)
 {
@@ -28,9 +29,6 @@ unsigned long __phys_addr(unsigned long x)
 }
 EXPORT_SYMBOL(__phys_addr);
 
-#define ISA_START_ADDRESS      0xa0000
-#define ISA_END_ADDRESS                0x100000
-
 /*
  * Fix up the linear direct mapping of the kernel to avoid cache attribute
  * conflicts.
diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h
index 3e214f39fad3..f96f1853bc41 100644
--- a/include/asm-x86/e820.h
+++ b/include/asm-x86/e820.h
@@ -22,6 +22,9 @@ struct e820map {
 };
 #endif /* __ASSEMBLY__ */
 
+#define ISA_START_ADDRESS	0xa0000
+#define ISA_END_ADDRESS		0x100000
+
 #ifdef __KERNEL__
 #ifdef CONFIG_X86_32
 # include "e820_32.h"
diff --git a/include/asm-x86/e820_64.h b/include/asm-x86/e820_64.h
index 1c7ba8804176..8cba49da4795 100644
--- a/include/asm-x86/e820_64.h
+++ b/include/asm-x86/e820_64.h
@@ -26,6 +26,10 @@ extern void e820_reserve_resources(struct resource *code_resource,
 extern void e820_mark_nosave_regions(void);
 extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type);
 extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type);
+extern int e820_any_non_reserved(unsigned long start, unsigned long end);
+extern int is_memory_any_valid(unsigned long start, unsigned long end);
+extern int e820_all_non_reserved(unsigned long start, unsigned long end);
+extern int is_memory_all_valid(unsigned long start, unsigned long end);
 extern unsigned long e820_hole_size(unsigned long start, unsigned long end);
 
 extern void e820_setup_gap(void);
@@ -38,6 +42,7 @@ extern struct e820map e820;
 
 extern unsigned ebda_addr, ebda_size;
 extern unsigned long nodemap_addr, nodemap_size;
+
 #endif/*!__ASSEMBLY__*/
 
 #endif/*__E820_HEADER*/
-- 
cgit v1.2.3-59-g8ed1b


From 94878efdd0815fe3a4159007b1454b25c7696d53 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:09 +0100
Subject: x86: early fault debugging improvement

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/head_32.S | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index fbad51fce672..f409fe2a52e4 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -502,6 +502,7 @@ early_fault:
 	call printk
 #endif
 #endif
+	call dump_stack
 hlt_loop:
 	hlt
 	jmp hlt_loop
-- 
cgit v1.2.3-59-g8ed1b


From a261670aed2b5b77a20ce9b15fed57abeb126c0e Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:33:09 +0100
Subject: x86: cleanup setup_node_zones called by paging_init()

setup_node_zones() calcuates some variables but only use them when
FLAT_NODE_MEM_MAP is set

so change the MACRO postion to avoid calculating.

also change it to static, and rename it to flat_setup_node_zones().

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/numa_64.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 848231481619..551e3590e5c5 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -233,8 +233,9 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
 	node_set_online(nodeid);
 }
 
+#ifdef CONFIG_FLAT_NODE_MEM_MAP
 /* Initialize final allocator for a zone */
-void __init setup_node_zones(int nodeid)
+static void __init flat_setup_node_zones(int nodeid)
 {
 	unsigned long start_pfn, end_pfn, memmapsize, limit;
 
@@ -250,14 +251,16 @@ void __init setup_node_zones(int nodeid)
 	 */
 	memmapsize = sizeof(struct page) * (end_pfn-start_pfn);
 	limit = end_pfn << PAGE_SHIFT;
-#ifdef CONFIG_FLAT_NODE_MEM_MAP
+
 	NODE_DATA(nodeid)->node_mem_map =
 		__alloc_bootmem_core(NODE_DATA(nodeid)->bdata,
 				     memmapsize, SMP_CACHE_BYTES,
 				     round_down(limit - memmapsize, PAGE_SIZE),
 				     limit);
-#endif
 }
+#else
+#define flat_setup_node_zones(i) do {} while (0)
+#endif
 
 /*
  * There are unfortunately some poorly designed mainboards around that
@@ -581,7 +584,7 @@ void __init paging_init(void)
 	sparse_init();
 
 	for_each_online_node(i)
-		setup_node_zones(i);
+		flat_setup_node_zones(i);
 
 	free_area_init_nodes(max_zone_pfns);
 }
-- 
cgit v1.2.3-59-g8ed1b


From aaf230424204864e2833dcc1da23e2cb0b9f39cd Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:33:09 +0100
Subject: x86: disable the GART early, 64-bit

For K8 system: 4G RAM with memory hole remapping enabled, or more than
4G RAM installed.

when try to use kexec second kernel, and the first doesn't include
gart_shutdown. the second kernel could have different aper position than
the first kernel. and second kernel could use that hole as RAM that is
still used by GART set by the first kernel. esp. when try to kexec
2.6.24 with sparse mem enable from previous kernel (from RHEL 5 or SLES
10). the new kernel will use aper by GART (set by first kernel) for
vmemmap. and after new kernel setting one new GART. the position will be
real RAM. the _mapcount set is lost.

Bad page state in process 'swapper'
page:ffffe2000e600020 flags:0x0000000000000000 mapping:0000000000000000 mapcount:1 count:0
Trying to fix it up, but a reboot is needed
Backtrace:
Pid: 0, comm: swapper Not tainted 2.6.24-rc7-smp-gcdf71a10-dirty #13

Call Trace:
 [<ffffffff8026401f>] bad_page+0x63/0x8d
 [<ffffffff80264169>] __free_pages_ok+0x7c/0x2a5
 [<ffffffff80ba75d1>] free_all_bootmem_core+0xd0/0x198
 [<ffffffff80ba3a42>] numa_free_all_bootmem+0x3b/0x76
 [<ffffffff80ba3461>] mem_init+0x3b/0x152
 [<ffffffff80b959d3>] start_kernel+0x236/0x2c2
 [<ffffffff80b9511a>] _sinittext+0x11a/0x121

and
 [ffffe2000e600000-ffffe2000e7fffff] PMD ->ffff81001c200000 on node 0
phys addr is : 0x1c200000

RHEL 5.1 kernel -53 said:
PCI-DMA: aperture base @ 1c000000 size 65536 KB

new kernel said:
Mapping aperture over 65536 KB of RAM @ 3c000000

So could try to disable that GART if possible.

According to Ingo

> hm, i'm wondering, instead of modifying the GART, why dont we simply
> _detect_ whatever GART settings we have inherited, and propagate that
> into our e820 maps? I.e. if there's inconsistency, then punch that out
> from the memory maps and just dont use that memory.
>
> that way it would not matter whether the GART settings came from a [old
> or crashing] Linux kernel that has not called gart_iommu_shutdown(), or
> whether it's a BIOS that has set up an aperture hole inconsistent with
> the memory map it passed. (or the memory map we _think_ i tried to pass
> us)
>
> it would also be more robust to only read and do a memory map quirk
> based on that, than actively trying to change the GART so early in the
> bootup. Later on we have to re-enable the GART _anyway_ and have to
> punch a hole for it.
>
> and as a bonus, we would have shored up our defenses against crappy
> BIOSes as well.

add e820 modification for gart inconsistent setting.

gart_fix_e820=off could be used to disable e820 fix.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/kernel-parameters.txt |  4 ++
 arch/x86/kernel/aperture_64.c       | 89 +++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/e820_64.c           | 12 +++++
 arch/x86/kernel/setup_64.c          |  3 ++
 include/asm-x86/e820_64.h           |  1 +
 include/asm-x86/gart.h              |  5 +++
 6 files changed, 114 insertions(+)

(limited to 'arch')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 40db7dd1d92a..860a90875491 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -660,6 +660,10 @@ and is between 256 and 4096 characters. It is defined in the file
 
 	gamma=		[HW,DRM]
 
+	gart_fix_e820=  [X86_64] disable the fix e820 for K8 GART
+			Format: off | on
+			default: on
+
 	gdth=		[HW,SCSI]
 			See header of drivers/scsi/gdth.c.
 
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 52d2beac4556..bf1b469d5847 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -218,6 +218,95 @@ static __u32 __init search_agp_bridge(u32 *order, int *valid_agp)
 	return 0;
 }
 
+static int gart_fix_e820 __initdata = 1;
+
+static int __init parse_gart_mem(char *p)
+{
+	if (!p)
+		return -EINVAL;
+
+	if (!strncmp(p, "off", 3))
+		gart_fix_e820 = 0;
+	else if (!strncmp(p, "on", 2))
+		gart_fix_e820 = 1;
+
+	return 0;
+}
+early_param("gart_fix_e820", parse_gart_mem);
+
+void __init early_gart_iommu_check(void)
+{
+	/*
+	 * in case it is enabled before, esp for kexec/kdump,
+	 * previous kernel already enable that. memset called
+	 * by allocate_aperture/__alloc_bootmem_nopanic cause restart.
+	 * or second kernel have different position for GART hole. and new
+	 * kernel could use hole as RAM that is still used by GART set by
+	 * first kernel
+	 * or BIOS forget to put that in reserved.
+	 * try to update e820 to make that region as reserved.
+	 */
+	int fix, num;
+	u32 ctl;
+	u32 aper_size = 0, aper_order = 0, last_aper_order = 0;
+	u64 aper_base = 0, last_aper_base = 0;
+	int aper_enabled = 0, last_aper_enabled = 0;
+
+	if (!early_pci_allowed())
+		return;
+
+	fix = 0;
+	for (num = 24; num < 32; num++) {
+		if (!early_is_k8_nb(read_pci_config(0, num, 3, 0x00)))
+			continue;
+
+		ctl = read_pci_config(0, num, 3, 0x90);
+		aper_enabled = ctl & 1;
+		aper_order = (ctl >> 1) & 7;
+		aper_size = (32 * 1024 * 1024) << aper_order;
+		aper_base = read_pci_config(0, num, 3, 0x94) & 0x7fff;
+		aper_base <<= 25;
+
+		if ((last_aper_order && aper_order != last_aper_order) ||
+		    (last_aper_base && aper_base != last_aper_base) ||
+		    (last_aper_enabled && aper_enabled != last_aper_enabled)) {
+			fix = 1;
+			break;
+		}
+		last_aper_order = aper_order;
+		last_aper_base = aper_base;
+		last_aper_enabled = aper_enabled;
+	}
+
+	if (!fix && !aper_enabled)
+		return;
+
+	if (!aper_base || !aper_size || aper_base + aper_size > 0x100000000UL)
+		fix = 1;
+
+	if (gart_fix_e820 && !fix && aper_enabled) {
+		if (e820_any_mapped(aper_base, aper_base + aper_size,
+				    E820_RAM)) {
+			/* reserved it, so we can resuse it in second kernel */
+			printk(KERN_INFO "update e820 for GART\n");
+			add_memory_region(aper_base, aper_size, E820_RESERVED);
+			update_e820();
+		}
+		return;
+	}
+
+	/* different nodes have different setting, disable them all at first*/
+	for (num = 24; num < 32; num++) {
+		if (!early_is_k8_nb(read_pci_config(0, num, 3, 0x00)))
+			continue;
+
+		ctl = read_pci_config(0, num, 3, 0x90);
+		ctl &= ~1;
+		write_pci_config(0, num, 3, 0x90, ctl);
+	}
+
+}
+
 void __init gart_iommu_hole_init(void)
 {
 	u32 aper_size, aper_alloc = 0, aper_order = 0, last_aper_order = 0;
diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index abc473bcabe8..07cfaae7ab07 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -728,6 +728,18 @@ void __init finish_e820_parsing(void)
 	}
 }
 
+void __init update_e820(void)
+{
+	u8 nr_map;
+
+	nr_map = e820.nr_map;
+	if (sanitize_e820_map(e820.map, &nr_map))
+		return;
+	e820.nr_map = nr_map;
+	printk(KERN_INFO "modified physical RAM map:\n");
+	e820_print_map("modified");
+}
+
 unsigned long pci_mem_start = 0xaeedbabe;
 EXPORT_SYMBOL(pci_mem_start);
 
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 07547febac7a..12bad27d66f8 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -53,6 +53,7 @@
 #include <video/edid.h>
 #include <asm/e820.h>
 #include <asm/dma.h>
+#include <asm/gart.h>
 #include <asm/mpspec.h>
 #include <asm/mmu_context.h>
 #include <asm/proto.h>
@@ -335,6 +336,8 @@ void __init setup_arch(char **cmdline_p)
 
 	finish_e820_parsing();
 
+	early_gart_iommu_check();
+
 	e820_register_active_regions(0, 0, -1UL);
 	/*
 	 * partially used pages are not usable - thus
diff --git a/include/asm-x86/e820_64.h b/include/asm-x86/e820_64.h
index 8cba49da4795..ff36f434f00b 100644
--- a/include/asm-x86/e820_64.h
+++ b/include/asm-x86/e820_64.h
@@ -39,6 +39,7 @@ extern void e820_register_active_regions(int nid,
 extern void finish_e820_parsing(void);
 
 extern struct e820map e820;
+extern void update_e820(void);
 
 extern unsigned ebda_addr, ebda_size;
 extern unsigned long nodemap_addr, nodemap_size;
diff --git a/include/asm-x86/gart.h b/include/asm-x86/gart.h
index f704c50519b8..90958ed993fa 100644
--- a/include/asm-x86/gart.h
+++ b/include/asm-x86/gart.h
@@ -9,6 +9,7 @@ extern int iommu_detected;
 extern void gart_iommu_init(void);
 extern void gart_iommu_shutdown(void);
 extern void __init gart_parse_options(char *);
+extern void early_gart_iommu_check(void);
 extern void gart_iommu_hole_init(void);
 extern int fallback_aper_order;
 extern int fallback_aper_force;
@@ -20,6 +21,10 @@ extern int fix_aperture;
 #define gart_iommu_aperture 0
 #define gart_iommu_aperture_allowed 0
 
+static inline void early_gart_iommu_check(void)
+{
+}
+
 static inline void gart_iommu_shutdown(void)
 {
 }
-- 
cgit v1.2.3-59-g8ed1b


From ccafa59a0061d7c44d15d02403120fd02b52c667 Mon Sep 17 00:00:00 2001
From: "mboton@gmail.com" <mboton@gmail.com>
Date: Wed, 30 Jan 2008 13:33:10 +0100
Subject: x86: ioport_{32|64}.c unification
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

ioport_{32|64}.c unification.

This patch unifies the code from the ioport_32.c and ioport_64.c files.

Tested and working fine with i386 and x86_64 kernels.

Signed-off-by: Miguel Botón <mboton@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile    |   2 +-
 arch/x86/kernel/ioport.c    | 150 ++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/ioport_32.c | 129 -------------------------------------
 arch/x86/kernel/ioport_64.c | 117 ----------------------------------
 4 files changed, 151 insertions(+), 247 deletions(-)
 create mode 100644 arch/x86/kernel/ioport.c
 delete mode 100644 arch/x86/kernel/ioport_32.c
 delete mode 100644 arch/x86/kernel/ioport_64.c

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 3d23ccd366ea..c414c45a0f13 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -10,7 +10,7 @@ CFLAGS_vsyscall_64.o := $(PROFILING) -g0
 
 obj-y			:= process_$(BITS).o signal_$(BITS).o entry_$(BITS).o
 obj-y			+= traps_$(BITS).o irq_$(BITS).o
-obj-y			+= time_$(BITS).o ioport_$(BITS).o ldt.o
+obj-y			+= time_$(BITS).o ioport.o ldt.o
 obj-y			+= setup_$(BITS).o i8259_$(BITS).o
 obj-$(CONFIG_X86_32)	+= sys_i386_32.o i386_ksyms_32.o
 obj-$(CONFIG_X86_64)	+= sys_x86_64.o x8664_ksyms_64.o
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
new file mode 100644
index 000000000000..e723ff3b1d53
--- /dev/null
+++ b/arch/x86/kernel/ioport.c
@@ -0,0 +1,150 @@
+/*
+ * This contains the io-permission bitmap code - written by obz, with changes
+ * by Linus. 32/64 bits code unification by Miguel Botón.
+ */
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/capability.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/ioport.h>
+#include <linux/smp.h>
+#include <linux/stddef.h>
+#include <linux/slab.h>
+#include <linux/thread_info.h>
+#include <linux/syscalls.h>
+
+/* Set EXTENT bits starting at BASE in BITMAP to value TURN_ON. */
+static void set_bitmap(unsigned long *bitmap, unsigned int base,
+		       unsigned int extent, int new_value)
+{
+	unsigned int i;
+
+	for (i = base; i < base + extent; i++) {
+		if (new_value)
+			__set_bit(i, bitmap);
+		else
+			__clear_bit(i, bitmap);
+	}
+}
+
+/*
+ * this changes the io permissions bitmap in the current task.
+ */
+asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
+{
+	struct thread_struct * t = &current->thread;
+	struct tss_struct * tss;
+	unsigned int i, max_long, bytes, bytes_updated;
+
+	if ((from + num <= from) || (from + num > IO_BITMAP_BITS))
+		return -EINVAL;
+	if (turn_on && !capable(CAP_SYS_RAWIO))
+		return -EPERM;
+
+	/*
+	 * If it's the first ioperm() call in this thread's lifetime, set the
+	 * IO bitmap up. ioperm() is much less timing critical than clone(),
+	 * this is why we delay this operation until now:
+	 */
+	if (!t->io_bitmap_ptr) {
+		unsigned long *bitmap = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
+
+		if (!bitmap)
+			return -ENOMEM;
+
+		memset(bitmap, 0xff, IO_BITMAP_BYTES);
+		t->io_bitmap_ptr = bitmap;
+		set_thread_flag(TIF_IO_BITMAP);
+	}
+
+	/*
+	 * do it in the per-thread copy and in the TSS ...
+	 *
+	 * Disable preemption via get_cpu() - we must not switch away
+	 * because the ->io_bitmap_max value must match the bitmap
+	 * contents:
+	 */
+	tss = &per_cpu(init_tss, get_cpu());
+
+	set_bitmap(t->io_bitmap_ptr, from, num, !turn_on);
+
+	/*
+	 * Search for a (possibly new) maximum. This is simple and stupid,
+	 * to keep it obviously correct:
+	 */
+	max_long = 0;
+	for (i = 0; i < IO_BITMAP_LONGS; i++)
+		if (t->io_bitmap_ptr[i] != ~0UL)
+			max_long = i;
+
+	bytes = (max_long + 1) * sizeof(unsigned long);
+	bytes_updated = max(bytes, t->io_bitmap_max);
+
+	t->io_bitmap_max = bytes;
+
+#ifdef CONFIG_X86_32
+	/*
+	 * Sets the lazy trigger so that the next I/O operation will
+	 * reload the correct bitmap.
+	 * Reset the owner so that a process switch will not set
+	 * tss->io_bitmap_base to IO_BITMAP_OFFSET.
+	 */
+	tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY;
+	tss->io_bitmap_owner = NULL;
+#else
+	/* Update the TSS: */
+	memcpy(tss->io_bitmap, t->io_bitmap_ptr, bytes_updated);
+#endif
+
+	put_cpu();
+
+	return 0;
+}
+
+/*
+ * sys_iopl has to be used when you want to access the IO ports
+ * beyond the 0x3ff range: to get the full 65536 ports bitmapped
+ * you'd need 8kB of bitmaps/process, which is a bit excessive.
+ *
+ * Here we just change the flags value on the stack: we allow
+ * only the super-user to do it. This depends on the stack-layout
+ * on system-call entry - see also fork() and the signal handling
+ * code.
+ */
+#ifdef CONFIG_X86_32
+asmlinkage long sys_iopl(unsigned long regsp)
+{
+	volatile struct pt_regs *regs = (struct pt_regs *)&regsp;
+	unsigned int level = regs->bx;
+	unsigned int old = (regs->flags >> 12) & 3;
+
+	if (level > 3)
+		return -EINVAL;
+	/* Trying to gain more privileges? */
+	if (level > old) {
+		if (!capable(CAP_SYS_RAWIO))
+			return -EPERM;
+	}
+	regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
+
+	return 0;
+}
+#else
+asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs)
+{
+	unsigned int old = (regs->flags >> 12) & 3;
+
+	if (level > 3)
+		return -EINVAL;
+	/* Trying to gain more privileges? */
+	if (level > old) {
+		if (!capable(CAP_SYS_RAWIO))
+			return -EPERM;
+	}
+	regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
+
+	return 0;
+}
+#endif
diff --git a/arch/x86/kernel/ioport_32.c b/arch/x86/kernel/ioport_32.c
deleted file mode 100644
index 9295e01ff49c..000000000000
--- a/arch/x86/kernel/ioport_32.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * This contains the io-permission bitmap code - written by obz, with changes
- * by Linus.
- */
-
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/capability.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/ioport.h>
-#include <linux/smp.h>
-#include <linux/stddef.h>
-#include <linux/slab.h>
-#include <linux/thread_info.h>
-#include <linux/syscalls.h>
-
-/* Set EXTENT bits starting at BASE in BITMAP to value TURN_ON. */
-static void set_bitmap(unsigned long *bitmap, unsigned int base,
-		       unsigned int extent, int new_value)
-{
-	unsigned int i;
-
-	for (i = base; i < base + extent; i++) {
-		if (new_value)
-			__set_bit(i, bitmap);
-		else
-			__clear_bit(i, bitmap);
-	}
-}
-
-/*
- * this changes the io permissions bitmap in the current task.
- */
-asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
-{
-	struct thread_struct * t = &current->thread;
-	struct tss_struct * tss;
-	unsigned long i, max_long;
-
-	if ((from + num <= from) || (from + num > IO_BITMAP_BITS))
-		return -EINVAL;
-	if (turn_on && !capable(CAP_SYS_RAWIO))
-		return -EPERM;
-
-	/*
-	 * If it's the first ioperm() call in this thread's lifetime, set the
-	 * IO bitmap up. ioperm() is much less timing critical than clone(),
-	 * this is why we delay this operation until now:
-	 */
-	if (!t->io_bitmap_ptr) {
-		unsigned long *bitmap = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
-
-		if (!bitmap)
-			return -ENOMEM;
-
-		memset(bitmap, 0xff, IO_BITMAP_BYTES);
-		t->io_bitmap_ptr = bitmap;
-		set_thread_flag(TIF_IO_BITMAP);
-	}
-
-	/*
-	 * do it in the per-thread copy and in the TSS ...
-	 *
-	 * Disable preemption via get_cpu() - we must not switch away
-	 * because the ->io_bitmap_max value must match the bitmap
-	 * contents:
-	 */
-	tss = &per_cpu(init_tss, get_cpu());
-
-	set_bitmap(t->io_bitmap_ptr, from, num, !turn_on);
-
-	/*
-	 * Search for a (possibly new) maximum. This is simple and stupid,
-	 * to keep it obviously correct:
-	 */
-	max_long = 0;
-	for (i = 0; i < IO_BITMAP_LONGS; i++)
-		if (t->io_bitmap_ptr[i] != ~0UL)
-			max_long = i;
-
-	t->io_bitmap_max = (max_long + 1) * sizeof(unsigned long);
-
-	/*
-	 * Sets the lazy trigger so that the next I/O operation will
-	 * reload the correct bitmap.
-	 * Reset the owner so that a process switch will not set
-	 * tss->io_bitmap_base to IO_BITMAP_OFFSET.
-	 */
-	tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY;
-	tss->io_bitmap_owner = NULL;
-
-	put_cpu();
-
-	return 0;
-}
-
-/*
- * sys_iopl has to be used when you want to access the IO ports
- * beyond the 0x3ff range: to get the full 65536 ports bitmapped
- * you'd need 8kB of bitmaps/process, which is a bit excessive.
- *
- * Here we just change the flags value on the stack: we allow
- * only the super-user to do it. This depends on the stack-layout
- * on system-call entry - see also fork() and the signal handling
- * code.
- */
-
-asmlinkage long sys_iopl(unsigned long regsp)
-{
-	volatile struct pt_regs *regs = (struct pt_regs *)&regsp;
-	unsigned int level = regs->bx;
-	unsigned int old = (regs->flags >> 12) & 3;
-	struct thread_struct *t = &current->thread;
-
-	if (level > 3)
-		return -EINVAL;
-	/* Trying to gain more privileges? */
-	if (level > old) {
-		if (!capable(CAP_SYS_RAWIO))
-			return -EPERM;
-	}
-
-	t->iopl = level << 12;
-	regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | t->iopl;
-	set_iopl_mask(t->iopl);
-
-	return 0;
-}
diff --git a/arch/x86/kernel/ioport_64.c b/arch/x86/kernel/ioport_64.c
deleted file mode 100644
index ff7514b757e5..000000000000
--- a/arch/x86/kernel/ioport_64.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * This contains the io-permission bitmap code - written by obz, with changes
- * by Linus.
- */
-
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/capability.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/ioport.h>
-#include <linux/smp.h>
-#include <linux/stddef.h>
-#include <linux/slab.h>
-#include <linux/thread_info.h>
-#include <linux/syscalls.h>
-
-/* Set EXTENT bits starting at BASE in BITMAP to value TURN_ON. */
-static void set_bitmap(unsigned long *bitmap, unsigned int base, unsigned int extent, int new_value)
-{
-	int i;
-		if (new_value)
-		for (i = base; i < base + extent; i++) 
-			__set_bit(i, bitmap); 
-		else
-		for (i = base; i < base + extent; i++) 
-			clear_bit(i, bitmap); 
-}
-
-/*
- * this changes the io permissions bitmap in the current task.
- */
-asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
-{
-	unsigned int i, max_long, bytes, bytes_updated;
-	struct thread_struct * t = &current->thread;
-	struct tss_struct * tss;
-	unsigned long *bitmap;
-
-	if ((from + num <= from) || (from + num > IO_BITMAP_BITS))
-		return -EINVAL;
-	if (turn_on && !capable(CAP_SYS_RAWIO))
-		return -EPERM;
-
-	/*
-	 * If it's the first ioperm() call in this thread's lifetime, set the
-	 * IO bitmap up. ioperm() is much less timing critical than clone(),
-	 * this is why we delay this operation until now:
-	 */
-	if (!t->io_bitmap_ptr) {
-		bitmap = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
-		if (!bitmap)
-			return -ENOMEM;
-
-		memset(bitmap, 0xff, IO_BITMAP_BYTES);
-		t->io_bitmap_ptr = bitmap;
-		set_thread_flag(TIF_IO_BITMAP);
-	}
-
-	/*
-	 * do it in the per-thread copy and in the TSS ...
-	 *
-	 * Disable preemption via get_cpu() - we must not switch away
-	 * because the ->io_bitmap_max value must match the bitmap
-	 * contents:
-	 */
-	tss = &per_cpu(init_tss, get_cpu());
-
-	set_bitmap(t->io_bitmap_ptr, from, num, !turn_on);
-
-	/*
-	 * Search for a (possibly new) maximum. This is simple and stupid,
-	 * to keep it obviously correct:
-	 */
-	max_long = 0;
-	for (i = 0; i < IO_BITMAP_LONGS; i++)
-		if (t->io_bitmap_ptr[i] != ~0UL)
-			max_long = i;
-
-	bytes = (max_long + 1) * sizeof(long);
-	bytes_updated = max(bytes, t->io_bitmap_max);
-
-	t->io_bitmap_max = bytes;
-
-	/* Update the TSS: */
-	memcpy(tss->io_bitmap, t->io_bitmap_ptr, bytes_updated);
-
-	put_cpu();
-
-	return 0;
-}
-
-/*
- * sys_iopl has to be used when you want to access the IO ports
- * beyond the 0x3ff range: to get the full 65536 ports bitmapped
- * you'd need 8kB of bitmaps/process, which is a bit excessive.
- *
- * Here we just change the flags value on the stack: we allow
- * only the super-user to do it. This depends on the stack-layout
- * on system-call entry - see also fork() and the signal handling
- * code.
- */
-
-asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs)
-{
-	unsigned int old = (regs->flags >> 12) & 3;
-
-	if (level > 3)
-		return -EINVAL;
-	/* Trying to gain more privileges? */
-	if (level > old) {
-		if (!capable(CAP_SYS_RAWIO))
-			return -EPERM;
-	}
-	regs->flags = (regs->flags &~ X86_EFLAGS_IOPL) | (level << 12);
-	return 0;
-}
-- 
cgit v1.2.3-59-g8ed1b


From 9718769d298f8642d5ef41eb5f55669d7c5b9fd6 Mon Sep 17 00:00:00 2001
From: Chris Wright <chrisw@sous-sol.org>
Date: Wed, 30 Jan 2008 13:33:10 +0100
Subject: x86: fix ioport unification on 32-bit

ioport unification was broken for 32-bit; it was missing
the acutal pushf/popf EFLAGS manipulation (set_iopl_mask()).
Also, use of volatile looks like leftover cruft.

Cc: mboton@gmail.com
Cc: Kevin Winchester <kjwinchester@gmail.com>
Cc: Zach Brown <zach.brown@oracle.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ioport.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index e723ff3b1d53..be72d809bce7 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -116,9 +116,10 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 #ifdef CONFIG_X86_32
 asmlinkage long sys_iopl(unsigned long regsp)
 {
-	volatile struct pt_regs *regs = (struct pt_regs *)&regsp;
+	struct pt_regs *regs = (struct pt_regs *)&regsp;
 	unsigned int level = regs->bx;
 	unsigned int old = (regs->flags >> 12) & 3;
+	struct thread_struct *t = &current->thread;
 
 	if (level > 3)
 		return -EINVAL;
@@ -127,8 +128,9 @@ asmlinkage long sys_iopl(unsigned long regsp)
 		if (!capable(CAP_SYS_RAWIO))
 			return -EPERM;
 	}
+	t->iopl = level << 12;
 	regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
-
+	set_iopl_mask(t->iopl);
 	return 0;
 }
 #else
-- 
cgit v1.2.3-59-g8ed1b


From a1bf250a6f31afb8caac166ae50dc7b89c38084c Mon Sep 17 00:00:00 2001
From: Chris Wright <chrisw@sous-sol.org>
Date: Wed, 30 Jan 2008 13:33:10 +0100
Subject: x86: refactor ioport unification

Refactor ioport unification to pull out common code.

Cc: mboton@gmail.com
Cc: Kevin Winchester <kjwinchester@gmail.com>
Cc: Zach Brown <zach.brown@oracle.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ioport.c | 40 +++++++++++++++++++++-------------------
 1 file changed, 21 insertions(+), 19 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index be72d809bce7..50e5e4a31c85 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -113,13 +113,9 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
  * on system-call entry - see also fork() and the signal handling
  * code.
  */
-#ifdef CONFIG_X86_32
-asmlinkage long sys_iopl(unsigned long regsp)
+static int do_iopl(unsigned int level, struct pt_regs *regs)
 {
-	struct pt_regs *regs = (struct pt_regs *)&regsp;
-	unsigned int level = regs->bx;
 	unsigned int old = (regs->flags >> 12) & 3;
-	struct thread_struct *t = &current->thread;
 
 	if (level > 3)
 		return -EINVAL;
@@ -128,25 +124,31 @@ asmlinkage long sys_iopl(unsigned long regsp)
 		if (!capable(CAP_SYS_RAWIO))
 			return -EPERM;
 	}
-	t->iopl = level << 12;
 	regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
-	set_iopl_mask(t->iopl);
+
 	return 0;
 }
-#else
-asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs)
+
+#ifdef CONFIG_X86_32
+asmlinkage long sys_iopl(unsigned long regsp)
 {
-	unsigned int old = (regs->flags >> 12) & 3;
+	struct pt_regs *regs = (struct pt_regs *)&regsp;
+	unsigned int level = regs->bx;
+	struct thread_struct *t = &current->thread;
+	int rc;
 
-	if (level > 3)
-		return -EINVAL;
-	/* Trying to gain more privileges? */
-	if (level > old) {
-		if (!capable(CAP_SYS_RAWIO))
-			return -EPERM;
-	}
-	regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
+	rc = do_iopl(level, regs);
+	if (rc < 0)
+		goto out;
 
-	return 0;
+	t->iopl = level << 12;
+	set_iopl_mask(t->iopl);
+out:
+	return rc;
+}
+#else
+asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs)
+{
+	return do_iopl(level, regs);
 }
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From ef97001f3d869d7cc1956e0cc0d89e514e3f7db0 Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:10 +0100
Subject: x86: change size of APICIDs from u8 to u16

Change the size of APICIDs from u8 to u16.  This partially
supports the new x2apic mode that will be present on future
processor chips. (Chips actually support 32-bit APICIDs, but that
change is more intrusive. Supporting 16-bit is sufficient for now).

Signed-off-by: Jack Steiner <steiner@sgi.com>

I've included just the partial change from u8 to u16 apicids.  The
remaining x2apic changes will be in a separate patch.

In addition, the fake_node_to_pxm_map[] and fake_apicid_to_node[]
tables have been moved from local data to the __initdata section
reducing stack pressure when MAX_NUMNODES and MAX_LOCAL_APIC are
increased in size.

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/genapic_64.c |  4 ++--
 arch/x86/kernel/mpparse_64.c |  4 ++--
 arch/x86/kernel/smpboot_64.c |  2 +-
 arch/x86/mm/numa_64.c        |  2 +-
 arch/x86/mm/srat_64.c        | 22 +++++++++++++---------
 include/asm-x86/processor.h  | 14 +++++++-------
 include/asm-x86/smp_64.h     |  8 ++++----
 7 files changed, 30 insertions(+), 26 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c
index ce703e21c912..ac2b78f24074 100644
--- a/arch/x86/kernel/genapic_64.c
+++ b/arch/x86/kernel/genapic_64.c
@@ -32,10 +32,10 @@
  * array during this time.  Is it zeroed when the per_cpu
  * data area is removed.
  */
-u8 x86_cpu_to_apicid_init[NR_CPUS] __initdata
+u16 x86_cpu_to_apicid_init[NR_CPUS] __initdata
 					= { [0 ... NR_CPUS-1] = BAD_APICID };
 void *x86_cpu_to_apicid_ptr;
-DEFINE_PER_CPU(u8, x86_cpu_to_apicid) = BAD_APICID;
+DEFINE_PER_CPU(u16, x86_cpu_to_apicid) = BAD_APICID;
 EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid);
 
 struct genapic __read_mostly *genapic = &apic_flat;
diff --git a/arch/x86/kernel/mpparse_64.c b/arch/x86/kernel/mpparse_64.c
index ef4aab123581..17d21e5b22d6 100644
--- a/arch/x86/kernel/mpparse_64.c
+++ b/arch/x86/kernel/mpparse_64.c
@@ -67,7 +67,7 @@ unsigned disabled_cpus __cpuinitdata;
 /* Bitmask of physically existing CPUs */
 physid_mask_t phys_cpu_present_map = PHYSID_MASK_NONE;
 
-u8 bios_cpu_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID };
+u16 bios_cpu_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID };
 
 
 /*
@@ -132,7 +132,7 @@ static void __cpuinit MP_processor_info(struct mpc_config_processor *m)
 	 * area is created.
 	 */
 	if (x86_cpu_to_apicid_ptr) {
-		u8 *x86_cpu_to_apicid = (u8 *)x86_cpu_to_apicid_ptr;
+		u16 *x86_cpu_to_apicid = (u16 *)x86_cpu_to_apicid_ptr;
 		x86_cpu_to_apicid[cpu] = m->mpc_apicid;
 	} else {
 		per_cpu(x86_cpu_to_apicid, cpu) = m->mpc_apicid;
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index 5bd42ce144da..1fea185c9dca 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -65,7 +65,7 @@ int smp_num_siblings = 1;
 EXPORT_SYMBOL(smp_num_siblings);
 
 /* Last level cache ID of each logical CPU */
-DEFINE_PER_CPU(u8, cpu_llc_id) = BAD_APICID;
+DEFINE_PER_CPU(u16, cpu_llc_id) = BAD_APICID;
 
 /* Bitmask of currently online CPUs */
 cpumask_t cpu_online_map __read_mostly;
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 551e3590e5c5..650001a87c8f 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -626,7 +626,7 @@ void __init init_cpu_to_node(void)
 	int i;
 
 	for (i = 0; i < NR_CPUS; i++) {
-		u8 apicid = x86_cpu_to_apicid_init[i];
+		u16 apicid = x86_cpu_to_apicid_init[i];
 
 		if (apicid == BAD_APICID)
 			continue;
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 5c0637e4c2f4..b367bc342fe0 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -130,6 +130,9 @@ void __init
 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 {
 	int pxm, node;
+	int apic_id;
+
+	apic_id = pa->apic_id;
 	if (srat_disabled())
 		return;
 	if (pa->header.length != sizeof(struct acpi_srat_cpu_affinity)) {
@@ -145,10 +148,10 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 		bad_srat();
 		return;
 	}
-	apicid_to_node[pa->apic_id] = node;
+	apicid_to_node[apic_id] = node;
 	acpi_numa = 1;
 	printk(KERN_INFO "SRAT: PXM %u -> APIC %u -> Node %u\n",
-	       pxm, pa->apic_id, node);
+	       pxm, apic_id, node);
 }
 
 int update_end_of_memory(unsigned long end) {return -1;}
@@ -343,7 +346,8 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
 	/* First clean up the node list */
 	for (i = 0; i < MAX_NUMNODES; i++) {
 		cutoff_node(i, start, end);
-		if ((nodes[i].end - nodes[i].start) < NODE_MIN_SIZE) {
+		/* ZZZ why was this needed. At least add a comment */
+		if (nodes[i].end && (nodes[i].end - nodes[i].start) < NODE_MIN_SIZE) {
 			unparse_node(i);
 			node_set_offline(i);
 		}
@@ -384,6 +388,12 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
 }
 
 #ifdef CONFIG_NUMA_EMU
+static int fake_node_to_pxm_map[MAX_NUMNODES] __initdata = {
+	[0 ... MAX_NUMNODES-1] = PXM_INVAL
+};
+static unsigned char fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = {
+	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
+};
 static int __init find_node_by_addr(unsigned long addr)
 {
 	int ret = NUMA_NO_NODE;
@@ -414,12 +424,6 @@ static int __init find_node_by_addr(unsigned long addr)
 void __init acpi_fake_nodes(const struct bootnode *fake_nodes, int num_nodes)
 {
 	int i, j;
-	int fake_node_to_pxm_map[MAX_NUMNODES] = {
-		[0 ... MAX_NUMNODES-1] = PXM_INVAL
-	};
-	unsigned char fake_apicid_to_node[MAX_LOCAL_APIC] = {
-		[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
-	};
 
 	printk(KERN_INFO "Faking PXM affinity for fake nodes on real "
 			 "topology.\n");
diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index e701ac5487e5..81ecfed83e47 100644
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -90,14 +90,14 @@ struct cpuinfo_x86 {
 #ifdef CONFIG_SMP
 	cpumask_t llc_shared_map;	/* cpus sharing the last level cache */
 #endif
-	unsigned char x86_max_cores;	/* cpuid returned max cores value */
-	unsigned char apicid;
-	unsigned short x86_clflush_size;
+	u16 x86_max_cores;		/* cpuid returned max cores value */
+	u16 apicid;
+	u16 x86_clflush_size;
 #ifdef CONFIG_SMP
-	unsigned char booted_cores;	/* number of cores as seen by OS */
-	__u8 phys_proc_id; 		/* Physical processor id. */
-	__u8 cpu_core_id;  		/* Core id */
-	__u8 cpu_index;			/* index into per_cpu list */
+	u16 booted_cores;		/* number of cores as seen by OS */
+	u16 phys_proc_id; 		/* Physical processor id. */
+	u16 cpu_core_id;  		/* Core id */
+	u16 cpu_index;			/* index into per_cpu list */
 #endif
 } __attribute__((__aligned__(SMP_CACHE_BYTES)));
 
diff --git a/include/asm-x86/smp_64.h b/include/asm-x86/smp_64.h
index 2feddda91e12..b1d5381aa760 100644
--- a/include/asm-x86/smp_64.h
+++ b/include/asm-x86/smp_64.h
@@ -26,14 +26,14 @@ extern void unlock_ipi_call_lock(void);
 extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *),
 				  void *info, int wait);
 
-extern u8 __initdata x86_cpu_to_apicid_init[];
+extern u16 __initdata x86_cpu_to_apicid_init[];
 extern void *x86_cpu_to_apicid_ptr;
-extern u8 bios_cpu_apicid[];
+extern u16 bios_cpu_apicid[];
 
 DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
 DECLARE_PER_CPU(cpumask_t, cpu_core_map);
-DECLARE_PER_CPU(u8, cpu_llc_id);
-DECLARE_PER_CPU(u8, x86_cpu_to_apicid);
+DECLARE_PER_CPU(u16, cpu_llc_id);
+DECLARE_PER_CPU(u16, x86_cpu_to_apicid);
 
 static inline int cpu_present_to_apicid(int mps_cpu)
 {
-- 
cgit v1.2.3-59-g8ed1b


From 3cc87e3f4042a099fb649c5df33d3ccfae36173f Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:11 +0100
Subject: x86: change size of node ids from u8 to u16

Change the size of node ids from 8 bits to 16 bits to
accomodate more than 256 nodes.

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/numa_64.c      | 9 ++++++---
 arch/x86/mm/srat_64.c      | 2 +-
 include/asm-x86/numa_64.h  | 4 ++--
 include/asm-x86/topology.h | 2 +-
 4 files changed, 10 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 650001a87c8f..bc6dd5051d60 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -11,6 +11,7 @@
 #include <linux/ctype.h>
 #include <linux/module.h>
 #include <linux/nodemask.h>
+#include <linux/sched.h>
 
 #include <asm/e820.h>
 #include <asm/proto.h>
@@ -30,12 +31,12 @@ bootmem_data_t plat_node_bdata[MAX_NUMNODES];
 
 struct memnode memnode;
 
-int cpu_to_node_map[NR_CPUS] __read_mostly = {
+u16 cpu_to_node_map[NR_CPUS] __read_mostly = {
 	[0 ... NR_CPUS-1] = NUMA_NO_NODE
 };
 EXPORT_SYMBOL(cpu_to_node_map);
 
-unsigned char apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
+u16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
 	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
 };
 
@@ -543,7 +544,9 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
 	node_set(0, node_possible_map);
 	for (i = 0; i < NR_CPUS; i++)
 		numa_set_node(i, 0);
-	node_to_cpumask_map[0] = cpumask_of_cpu(0);
+	/* we can't use cpumask_of_cpu() yet */
+	memset(&node_to_cpumask_map[0], 0, sizeof(node_to_cpumask_map[0]));
+	cpu_set(0, node_to_cpumask_map[0]);
 	e820_register_active_regions(0, start_pfn, end_pfn);
 	setup_node_bootmem(0, start_pfn << PAGE_SHIFT, end_pfn << PAGE_SHIFT);
 }
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index b367bc342fe0..bccbdc7be434 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -391,7 +391,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
 static int fake_node_to_pxm_map[MAX_NUMNODES] __initdata = {
 	[0 ... MAX_NUMNODES-1] = PXM_INVAL
 };
-static unsigned char fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = {
+static u16 fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = {
 	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
 };
 static int __init find_node_by_addr(unsigned long addr)
diff --git a/include/asm-x86/numa_64.h b/include/asm-x86/numa_64.h
index 4449889bb0c0..941889471b52 100644
--- a/include/asm-x86/numa_64.h
+++ b/include/asm-x86/numa_64.h
@@ -20,7 +20,7 @@ extern void numa_set_node(int cpu, int node);
 extern void srat_reserve_add_area(int nodeid);
 extern int hotadd_percent;
 
-extern unsigned char apicid_to_node[MAX_LOCAL_APIC];
+extern u16 apicid_to_node[MAX_LOCAL_APIC];
 
 extern void numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn);
 extern unsigned long numa_free_all_bootmem(void);
@@ -40,6 +40,6 @@ static inline void clear_node_cpumask(int cpu)
 #define clear_node_cpumask(cpu) do {} while (0)
 #endif
 
-#define NUMA_NO_NODE 0xff
+#define NUMA_NO_NODE 0xffff
 
 #endif
diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h
index 9c251604ecc4..f8706b2a3d88 100644
--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -30,7 +30,7 @@
 #include <asm/mpspec.h>
 
 /* Mappings between logical cpu number and node number */
-extern int cpu_to_node_map[];
+extern u16 cpu_to_node_map[];
 extern cpumask_t node_to_cpumask_map[];
 
 /* Returns the number of the node containing CPU 'cpu' */
-- 
cgit v1.2.3-59-g8ed1b


From 2c6b8c030cfca334c3d700ee504036c585c4c6a3 Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:11 +0100
Subject: x86: change NR_CPUS arrays in powernow-k8

Change the following static arrays sized by NR_CPUS to
per_cpu data variables:

	powernow_k8_data *powernow_data[NR_CPUS];

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 99e1ef9939be..a0522735dd9d 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -52,7 +52,7 @@
 /* serialize freq changes  */
 static DEFINE_MUTEX(fidvid_mutex);
 
-static struct powernow_k8_data *powernow_data[NR_CPUS];
+static DEFINE_PER_CPU(struct powernow_k8_data *, powernow_data);
 
 static int cpu_family = CPU_OPTERON;
 
@@ -1018,7 +1018,7 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i
 static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsigned relation)
 {
 	cpumask_t oldmask = CPU_MASK_ALL;
-	struct powernow_k8_data *data = powernow_data[pol->cpu];
+	struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
 	u32 checkfid;
 	u32 checkvid;
 	unsigned int newstate;
@@ -1094,7 +1094,7 @@ err_out:
 /* Driver entry point to verify the policy and range of frequencies */
 static int powernowk8_verify(struct cpufreq_policy *pol)
 {
-	struct powernow_k8_data *data = powernow_data[pol->cpu];
+	struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
 
 	if (!data)
 		return -EINVAL;
@@ -1202,7 +1202,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
 		dprintk("cpu_init done, current fid 0x%x, vid 0x%x\n",
 			data->currfid, data->currvid);
 
-	powernow_data[pol->cpu] = data;
+	per_cpu(powernow_data, pol->cpu) = data;
 
 	return 0;
 
@@ -1216,7 +1216,7 @@ err_out:
 
 static int __devexit powernowk8_cpu_exit (struct cpufreq_policy *pol)
 {
-	struct powernow_k8_data *data = powernow_data[pol->cpu];
+	struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
 
 	if (!data)
 		return -EINVAL;
@@ -1237,7 +1237,7 @@ static unsigned int powernowk8_get (unsigned int cpu)
 	cpumask_t oldmask = current->cpus_allowed;
 	unsigned int khz = 0;
 
-	data = powernow_data[first_cpu(per_cpu(cpu_core_map, cpu))];
+	data = per_cpu(powernow_data, first_cpu(per_cpu(cpu_core_map, cpu)));
 
 	if (!data)
 		return -EINVAL;
-- 
cgit v1.2.3-59-g8ed1b


From 24b0d22b7b63bfc71853faf64e76cd45701ecf2a Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:11 +0100
Subject: x86: change NR_CPUS arrays in smpboot_64

Change the following static arrays sized by NR_CPUS to
per_cpu data variables:

	task_struct *idle_thread_array[NR_CPUS];

This is only done if CONFIG_HOTPLUG_CPU is defined
as otherwise, the array is removed after initialization
anyways.

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/smpboot_64.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index 1fea185c9dca..50e207a8261f 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -111,10 +111,20 @@ DEFINE_PER_CPU(int, cpu_state) = { 0 };
  * a new thread. Also avoids complicated thread destroy functionality
  * for idle threads.
  */
+#ifdef CONFIG_HOTPLUG_CPU
+/*
+ * Needed only for CONFIG_HOTPLUG_CPU because __cpuinitdata is
+ * removed after init for !CONFIG_HOTPLUG_CPU.
+ */
+static DEFINE_PER_CPU(struct task_struct *, idle_thread_array);
+#define get_idle_for_cpu(x)     (per_cpu(idle_thread_array, x))
+#define set_idle_for_cpu(x,p)   (per_cpu(idle_thread_array, x) = (p))
+#else
 struct task_struct *idle_thread_array[NR_CPUS] __cpuinitdata ;
-
 #define get_idle_for_cpu(x)     (idle_thread_array[(x)])
 #define set_idle_for_cpu(x,p)   (idle_thread_array[(x)] = (p))
+#endif
+
 
 /*
  * Currently trivial. Write the real->protected mode
-- 
cgit v1.2.3-59-g8ed1b


From 30964d54e94229f567a7312a0e6666f9deb6a488 Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:11 +0100
Subject: x86: change NR_CPUS arrays in topology

Change the following static arrays sized by NR_CPUS to
per_cpu data variables:

	i386_cpu cpu_devices[NR_CPUS];

(And change the struct name to x86_cpu.)

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/topology.c | 8 ++++----
 include/asm-x86/cpu.h      | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c
index 7e16d675eb85..a0d1719bda79 100644
--- a/arch/x86/kernel/topology.c
+++ b/arch/x86/kernel/topology.c
@@ -31,7 +31,7 @@
 #include <linux/mmzone.h>
 #include <asm/cpu.h>
 
-static struct i386_cpu cpu_devices[NR_CPUS];
+static DEFINE_PER_CPU(struct x86_cpu, cpu_devices);
 
 int __cpuinit arch_register_cpu(int num)
 {
@@ -46,16 +46,16 @@ int __cpuinit arch_register_cpu(int num)
 	 */
 #ifdef CONFIG_HOTPLUG_CPU
 	if (num)
-		cpu_devices[num].cpu.hotpluggable = 1;
+		per_cpu(cpu_devices, num).cpu.hotpluggable = 1;
 #endif
 
-	return register_cpu(&cpu_devices[num].cpu, num);
+	return register_cpu(&per_cpu(cpu_devices, num).cpu, num);
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
 void arch_unregister_cpu(int num)
 {
-	return unregister_cpu(&cpu_devices[num].cpu);
+	return unregister_cpu(&per_cpu(cpu_devices, num).cpu);
 }
 EXPORT_SYMBOL(arch_register_cpu);
 EXPORT_SYMBOL(arch_unregister_cpu);
diff --git a/include/asm-x86/cpu.h b/include/asm-x86/cpu.h
index b1bc7b1b64b0..85ece5f10e9e 100644
--- a/include/asm-x86/cpu.h
+++ b/include/asm-x86/cpu.h
@@ -7,7 +7,7 @@
 #include <linux/nodemask.h>
 #include <linux/percpu.h>
 
-struct i386_cpu {
+struct x86_cpu {
 	struct cpu cpu;
 };
 extern int arch_register_cpu(int num);
-- 
cgit v1.2.3-59-g8ed1b


From 3b41908902df1dba141cd7de1a727bb03718a654 Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:11 +0100
Subject: x86: cleanup x86_cpu_to_apicid references

Clean up references to x86_cpu_to_apicid.  Removes extraneous
comments and standardizes on "x86_*_early_ptr" for the early
kernel init references.

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/genapic_64.c | 11 ++---------
 arch/x86/kernel/mpparse_64.c | 11 +++--------
 arch/x86/kernel/setup_64.c   |  2 +-
 arch/x86/kernel/smpboot_32.c |  9 ++-------
 arch/x86/kernel/smpboot_64.c | 16 +++++++++-------
 include/asm-x86/smp_32.h     |  2 +-
 include/asm-x86/smp_64.h     |  2 +-
 7 files changed, 19 insertions(+), 34 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c
index ac2b78f24074..4ae7b6440260 100644
--- a/arch/x86/kernel/genapic_64.c
+++ b/arch/x86/kernel/genapic_64.c
@@ -24,17 +24,10 @@
 #include <acpi/acpi_bus.h>
 #endif
 
-/*
- * which logical CPU number maps to which CPU (physical APIC ID)
- *
- * The following static array is used during kernel startup
- * and the x86_cpu_to_apicid_ptr contains the address of the
- * array during this time.  Is it zeroed when the per_cpu
- * data area is removed.
- */
+/* which logical CPU number maps to which CPU (physical APIC ID) */
 u16 x86_cpu_to_apicid_init[NR_CPUS] __initdata
 					= { [0 ... NR_CPUS-1] = BAD_APICID };
-void *x86_cpu_to_apicid_ptr;
+void *x86_cpu_to_apicid_early_ptr;
 DEFINE_PER_CPU(u16, x86_cpu_to_apicid) = BAD_APICID;
 EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid);
 
diff --git a/arch/x86/kernel/mpparse_64.c b/arch/x86/kernel/mpparse_64.c
index 17d21e5b22d6..528ad9696d96 100644
--- a/arch/x86/kernel/mpparse_64.c
+++ b/arch/x86/kernel/mpparse_64.c
@@ -125,14 +125,9 @@ static void __cpuinit MP_processor_info(struct mpc_config_processor *m)
 		cpu = 0;
  	}
 	bios_cpu_apicid[cpu] = m->mpc_apicid;
-	/*
-	 * We get called early in the the start_kernel initialization
-	 * process when the per_cpu data area is not yet setup, so we
-	 * use a static array that is removed after the per_cpu data
-	 * area is created.
-	 */
-	if (x86_cpu_to_apicid_ptr) {
-		u16 *x86_cpu_to_apicid = (u16 *)x86_cpu_to_apicid_ptr;
+	/* are we being called early in kernel startup? */
+	if (x86_cpu_to_apicid_early_ptr) {
+		u16 *x86_cpu_to_apicid = (u16 *)x86_cpu_to_apicid_early_ptr;
 		x86_cpu_to_apicid[cpu] = m->mpc_apicid;
 	} else {
 		per_cpu(x86_cpu_to_apicid, cpu) = m->mpc_apicid;
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 12bad27d66f8..e2beb4cba15f 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -360,7 +360,7 @@ void __init setup_arch(char **cmdline_p)
 
 #ifdef CONFIG_SMP
 	/* setup to use the static apicid table during kernel startup */
-	x86_cpu_to_apicid_ptr = (void *)&x86_cpu_to_apicid_init;
+	x86_cpu_to_apicid_early_ptr = (void *)&x86_cpu_to_apicid_init;
 #endif
 
 #ifdef CONFIG_ACPI
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 2034332ad080..915ec6267326 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -91,15 +91,10 @@ static cpumask_t smp_commenced_mask;
 DEFINE_PER_CPU_SHARED_ALIGNED(struct cpuinfo_x86, cpu_info);
 EXPORT_PER_CPU_SYMBOL(cpu_info);
 
-/*
- * The following static array is used during kernel startup
- * and the x86_cpu_to_apicid_ptr contains the address of the
- * array during this time.  Is it zeroed when the per_cpu
- * data area is removed.
- */
+/* which logical CPU number maps to which CPU (physical APIC ID) */
 u8 x86_cpu_to_apicid_init[NR_CPUS] __initdata =
 			{ [0 ... NR_CPUS-1] = BAD_APICID };
-void *x86_cpu_to_apicid_ptr;
+void *x86_cpu_to_apicid_early_ptr;
 DEFINE_PER_CPU(u8, x86_cpu_to_apicid) = BAD_APICID;
 EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid);
 
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index 50e207a8261f..a2076b5f12af 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -852,23 +852,25 @@ static int __init smp_sanity_check(unsigned max_cpus)
 }
 
 /*
- * Copy apicid's found by MP_processor_info from initial array to the per cpu
- * data area.  The x86_cpu_to_apicid_init array is then expendable and the
- * x86_cpu_to_apicid_ptr is zeroed indicating that the static array is no
- * longer available.
+ * Copy data used in early init routines from the initial arrays to the
+ * per cpu data areas.  These arrays then become expendable and the
+ * *_ptrs are zeroed indicating that the static arrays are gone.
  */
 void __init smp_set_apicids(void)
 {
 	int cpu;
 
-	for_each_cpu_mask(cpu, cpu_possible_map) {
+	for_each_possible_cpu(cpu) {
 		if (per_cpu_offset(cpu))
 			per_cpu(x86_cpu_to_apicid, cpu) =
 						x86_cpu_to_apicid_init[cpu];
+		else
+			printk(KERN_NOTICE "per_cpu_offset zero for cpu %d\n",
+									cpu);
 	}
 
-	/* indicate the static array will be going away soon */
-	x86_cpu_to_apicid_ptr = NULL;
+	/* indicate the early static arrays are gone */
+	x86_cpu_to_apicid_early_ptr = NULL;
 }
 
 static void __init smp_cpu_index_default(void)
diff --git a/include/asm-x86/smp_32.h b/include/asm-x86/smp_32.h
index c69e960429cc..56152e312287 100644
--- a/include/asm-x86/smp_32.h
+++ b/include/asm-x86/smp_32.h
@@ -30,7 +30,7 @@ extern void (*mtrr_hook) (void);
 extern void zap_low_mappings (void);
 
 extern u8 __initdata x86_cpu_to_apicid_init[];
-extern void *x86_cpu_to_apicid_ptr;
+extern void *x86_cpu_to_apicid_early_ptr;
 
 DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
 DECLARE_PER_CPU(cpumask_t, cpu_core_map);
diff --git a/include/asm-x86/smp_64.h b/include/asm-x86/smp_64.h
index b1d5381aa760..6fa332db29cc 100644
--- a/include/asm-x86/smp_64.h
+++ b/include/asm-x86/smp_64.h
@@ -27,7 +27,7 @@ extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *),
 				  void *info, int wait);
 
 extern u16 __initdata x86_cpu_to_apicid_init[];
-extern void *x86_cpu_to_apicid_ptr;
+extern void *x86_cpu_to_apicid_early_ptr;
 extern u16 bios_cpu_apicid[];
 
 DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
-- 
cgit v1.2.3-59-g8ed1b


From df3825c56dd70a4d7796041388f3cfe51c1db832 Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:11 +0100
Subject: x86: change NR_CPUS arrays in numa_64

Change the following static arrays sized by NR_CPUS to
per_cpu data variables:

	char cpu_to_node_map[NR_CPUS];

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c   |  4 +++-
 arch/x86/kernel/smpboot_64.c |  6 +++++-
 arch/x86/mm/numa_64.c        | 20 ++++++++++++++++----
 include/asm-x86/numa_64.h    |  2 --
 include/asm-x86/topology.h   | 15 +++++++++++++--
 net/sunrpc/svc.c             |  1 +
 6 files changed, 38 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index e2beb4cba15f..529e45c37b1c 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -65,6 +65,7 @@
 #include <asm/cacheflush.h>
 #include <asm/mce.h>
 #include <asm/ds.h>
+#include <asm/topology.h>
 
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
@@ -359,8 +360,9 @@ void __init setup_arch(char **cmdline_p)
 	io_delay_init();
 
 #ifdef CONFIG_SMP
-	/* setup to use the static apicid table during kernel startup */
+	/* setup to use the early static init tables during kernel startup */
 	x86_cpu_to_apicid_early_ptr = (void *)&x86_cpu_to_apicid_init;
+	x86_cpu_to_node_map_early_ptr = (void *)&x86_cpu_to_node_map_init;
 #endif
 
 #ifdef CONFIG_ACPI
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index a2076b5f12af..a8bc2bcdb74a 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -861,9 +861,12 @@ void __init smp_set_apicids(void)
 	int cpu;
 
 	for_each_possible_cpu(cpu) {
-		if (per_cpu_offset(cpu))
+		if (per_cpu_offset(cpu)) {
 			per_cpu(x86_cpu_to_apicid, cpu) =
 						x86_cpu_to_apicid_init[cpu];
+			per_cpu(x86_cpu_to_node_map, cpu) =
+						x86_cpu_to_node_map_init[cpu];
+		}
 		else
 			printk(KERN_NOTICE "per_cpu_offset zero for cpu %d\n",
 									cpu);
@@ -871,6 +874,7 @@ void __init smp_set_apicids(void)
 
 	/* indicate the early static arrays are gone */
 	x86_cpu_to_apicid_early_ptr = NULL;
+	x86_cpu_to_node_map_early_ptr = NULL;
 }
 
 static void __init smp_cpu_index_default(void)
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index bc6dd5051d60..382377d6421d 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -31,10 +31,14 @@ bootmem_data_t plat_node_bdata[MAX_NUMNODES];
 
 struct memnode memnode;
 
-u16 cpu_to_node_map[NR_CPUS] __read_mostly = {
+u16 x86_cpu_to_node_map_init[NR_CPUS] __initdata = {
 	[0 ... NR_CPUS-1] = NUMA_NO_NODE
 };
-EXPORT_SYMBOL(cpu_to_node_map);
+void *x86_cpu_to_node_map_early_ptr;
+EXPORT_SYMBOL(x86_cpu_to_node_map_init);
+EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr);
+DEFINE_PER_CPU(u16, x86_cpu_to_node_map) = NUMA_NO_NODE;
+EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map);
 
 u16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
 	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
@@ -544,7 +548,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
 	node_set(0, node_possible_map);
 	for (i = 0; i < NR_CPUS; i++)
 		numa_set_node(i, 0);
-	/* we can't use cpumask_of_cpu() yet */
+	/* cpumask_of_cpu() may not be available during early startup */
 	memset(&node_to_cpumask_map[0], 0, sizeof(node_to_cpumask_map[0]));
 	cpu_set(0, node_to_cpumask_map[0]);
 	e820_register_active_regions(0, start_pfn, end_pfn);
@@ -558,8 +562,16 @@ __cpuinit void numa_add_cpu(int cpu)
 
 void __cpuinit numa_set_node(int cpu, int node)
 {
+	u16 *cpu_to_node_map = (u16 *)x86_cpu_to_node_map_early_ptr;
+
 	cpu_pda(cpu)->nodenumber = node;
-	cpu_to_node_map[cpu] = node;
+
+	if(cpu_to_node_map)
+		cpu_to_node_map[cpu] = node;
+	else if(per_cpu_offset(cpu))
+		per_cpu(x86_cpu_to_node_map, cpu) = node;
+	else
+		Dprintk(KERN_INFO "Setting node for non-present cpu %d\n", cpu);
 }
 
 unsigned long __init numa_free_all_bootmem(void)
diff --git a/include/asm-x86/numa_64.h b/include/asm-x86/numa_64.h
index 941889471b52..c797cd523d2b 100644
--- a/include/asm-x86/numa_64.h
+++ b/include/asm-x86/numa_64.h
@@ -40,6 +40,4 @@ static inline void clear_node_cpumask(int cpu)
 #define clear_node_cpumask(cpu) do {} while (0)
 #endif
 
-#define NUMA_NO_NODE 0xffff
-
 #endif
diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h
index f8706b2a3d88..e612ed8d2bc7 100644
--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -30,13 +30,24 @@
 #include <asm/mpspec.h>
 
 /* Mappings between logical cpu number and node number */
-extern u16 cpu_to_node_map[];
+DECLARE_PER_CPU(u16, x86_cpu_to_node_map);
+extern u16 __initdata x86_cpu_to_node_map_init[];
+extern void *x86_cpu_to_node_map_early_ptr;
 extern cpumask_t node_to_cpumask_map[];
 
+#define NUMA_NO_NODE	((u16)(~0))
+
 /* Returns the number of the node containing CPU 'cpu' */
 static inline int cpu_to_node(int cpu)
 {
-	return cpu_to_node_map[cpu];
+	u16 *cpu_to_node_map = (u16 *)x86_cpu_to_node_map_early_ptr;
+
+	if (cpu_to_node_map)
+		return cpu_to_node_map[cpu];
+	else if (per_cpu_offset(cpu))
+		return per_cpu(x86_cpu_to_node_map, cpu);
+	else
+		return NUMA_NO_NODE;
 }
 
 /*
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index a4a6bf7deaa4..4ad5fbbb18b4 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -18,6 +18,7 @@
 #include <linux/mm.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
+#include <linux/sched.h>
 
 #include <linux/sunrpc/types.h>
 #include <linux/sunrpc/xdr.h>
-- 
cgit v1.2.3-59-g8ed1b


From ea348f3e58f43a27c8ac414dd3a14ee59528b86a Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:12 +0100
Subject: x86: change NR_CPUS arrays in acpi-cpufreq

Change the following static arrays sized by NR_CPUS to
per_cpu data variables:

	acpi_cpufreq_data *drv_data[NR_CPUS]

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index fea0af0476b9..a962dcb9c408 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -67,7 +67,8 @@ struct acpi_cpufreq_data {
 	unsigned int cpu_feature;
 };
 
-static struct acpi_cpufreq_data *drv_data[NR_CPUS];
+static DEFINE_PER_CPU(struct acpi_cpufreq_data *, drv_data);
+
 /* acpi_perf_data is a pointer to percpu data. */
 static struct acpi_processor_performance *acpi_perf_data;
 
@@ -218,14 +219,14 @@ static u32 get_cur_val(cpumask_t mask)
 	if (unlikely(cpus_empty(mask)))
 		return 0;
 
-	switch (drv_data[first_cpu(mask)]->cpu_feature) {
+	switch (per_cpu(drv_data, first_cpu(mask))->cpu_feature) {
 	case SYSTEM_INTEL_MSR_CAPABLE:
 		cmd.type = SYSTEM_INTEL_MSR_CAPABLE;
 		cmd.addr.msr.reg = MSR_IA32_PERF_STATUS;
 		break;
 	case SYSTEM_IO_CAPABLE:
 		cmd.type = SYSTEM_IO_CAPABLE;
-		perf = drv_data[first_cpu(mask)]->acpi_data;
+		perf = per_cpu(drv_data, first_cpu(mask))->acpi_data;
 		cmd.addr.io.port = perf->control_register.address;
 		cmd.addr.io.bit_width = perf->control_register.bit_width;
 		break;
@@ -325,7 +326,7 @@ static unsigned int get_measured_perf(unsigned int cpu)
 
 #endif
 
-	retval = drv_data[cpu]->max_freq * perf_percent / 100;
+	retval = per_cpu(drv_data, cpu)->max_freq * perf_percent / 100;
 
 	put_cpu();
 	set_cpus_allowed(current, saved_mask);
@@ -336,7 +337,7 @@ static unsigned int get_measured_perf(unsigned int cpu)
 
 static unsigned int get_cur_freq_on_cpu(unsigned int cpu)
 {
-	struct acpi_cpufreq_data *data = drv_data[cpu];
+	struct acpi_cpufreq_data *data = per_cpu(drv_data, cpu);
 	unsigned int freq;
 
 	dprintk("get_cur_freq_on_cpu (%d)\n", cpu);
@@ -370,7 +371,7 @@ static unsigned int check_freqs(cpumask_t mask, unsigned int freq,
 static int acpi_cpufreq_target(struct cpufreq_policy *policy,
 			       unsigned int target_freq, unsigned int relation)
 {
-	struct acpi_cpufreq_data *data = drv_data[policy->cpu];
+	struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu);
 	struct acpi_processor_performance *perf;
 	struct cpufreq_freqs freqs;
 	cpumask_t online_policy_cpus;
@@ -466,7 +467,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
 
 static int acpi_cpufreq_verify(struct cpufreq_policy *policy)
 {
-	struct acpi_cpufreq_data *data = drv_data[policy->cpu];
+	struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu);
 
 	dprintk("acpi_cpufreq_verify\n");
 
@@ -570,7 +571,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		return -ENOMEM;
 
 	data->acpi_data = percpu_ptr(acpi_perf_data, cpu);
-	drv_data[cpu] = data;
+	per_cpu(drv_data, cpu) = data;
 
 	if (cpu_has(c, X86_FEATURE_CONSTANT_TSC))
 		acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
@@ -714,20 +715,20 @@ err_unreg:
 	acpi_processor_unregister_performance(perf, cpu);
 err_free:
 	kfree(data);
-	drv_data[cpu] = NULL;
+	per_cpu(drv_data, cpu) = NULL;
 
 	return result;
 }
 
 static int acpi_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 {
-	struct acpi_cpufreq_data *data = drv_data[policy->cpu];
+	struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu);
 
 	dprintk("acpi_cpufreq_cpu_exit\n");
 
 	if (data) {
 		cpufreq_frequency_table_put_attr(policy->cpu);
-		drv_data[policy->cpu] = NULL;
+		per_cpu(drv_data, policy->cpu) = NULL;
 		acpi_processor_unregister_performance(data->acpi_data,
 						      policy->cpu);
 		kfree(data);
@@ -738,7 +739,7 @@ static int acpi_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 
 static int acpi_cpufreq_resume(struct cpufreq_policy *policy)
 {
-	struct acpi_cpufreq_data *data = drv_data[policy->cpu];
+	struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu);
 
 	dprintk("acpi_cpufreq_resume\n");
 
-- 
cgit v1.2.3-59-g8ed1b


From e8c10ef9dde3ab7b7d7db6804859d9daf38f01c4 Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:12 +0100
Subject: x86: change bios_cpu_apicid to percpu data variable

Change static bios_cpu_apicid array to a per_cpu data variable.
This includes using a static array used during initialization
similar to the way x86_cpu_to_apicid[] is handled.

There is one early use of bios_cpu_apicid in apic_is_clustered_box().
The other reference in cpu_present_to_apicid() is called after
smp_set_apicids() has setup the percpu version of bios_cpu_apicid.

[ mingo@elte.hu: build fix ]

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic_64.c    | 16 ++++++++++++++--
 arch/x86/kernel/mpparse_64.c | 17 ++++++++++++-----
 arch/x86/kernel/setup_64.c   |  3 +++
 arch/x86/kernel/smpboot_64.c |  7 +++++++
 include/asm-x86/smp_64.h     |  8 +++++---
 5 files changed, 41 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 01d4ca27ecf0..f9919c492699 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -1180,14 +1180,26 @@ __cpuinit int apic_is_clustered_box(void)
 	bitmap_zero(clustermap, NUM_APIC_CLUSTERS);
 
 	for (i = 0; i < NR_CPUS; i++) {
-		id = bios_cpu_apicid[i];
+		/* are we being called early in kernel startup? */
+		if (x86_bios_cpu_apicid_early_ptr) {
+			id = ((u16 *)x86_bios_cpu_apicid_early_ptr)[i];
+		}
+		else if (i < nr_cpu_ids) {
+			if (cpu_present(i))
+				id = per_cpu(x86_bios_cpu_apicid, i);
+			else
+				continue;
+		}
+		else
+			break;
+
 		if (id != BAD_APICID)
 			__set_bit(APIC_CLUSTERID(id), clustermap);
 	}
 
 	/* Problem:  Partially populated chassis may not have CPUs in some of
 	 * the APIC clusters they have been allocated.  Only present CPUs have
-	 * bios_cpu_apicid entries, thus causing zeroes in the bitmap.  Since
+	 * x86_bios_cpu_apicid entries, thus causing zeroes in the bitmap.  Since
 	 * clusters are allocated sequentially, count zeros only if they are
 	 * bounded by ones.
 	 */
diff --git a/arch/x86/kernel/mpparse_64.c b/arch/x86/kernel/mpparse_64.c
index 528ad9696d96..fd671754dcb5 100644
--- a/arch/x86/kernel/mpparse_64.c
+++ b/arch/x86/kernel/mpparse_64.c
@@ -67,7 +67,11 @@ unsigned disabled_cpus __cpuinitdata;
 /* Bitmask of physically existing CPUs */
 physid_mask_t phys_cpu_present_map = PHYSID_MASK_NONE;
 
-u16 bios_cpu_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID };
+u16 x86_bios_cpu_apicid_init[NR_CPUS] __initdata
+				= { [0 ... NR_CPUS-1] = BAD_APICID };
+void *x86_bios_cpu_apicid_early_ptr;
+DEFINE_PER_CPU(u16, x86_bios_cpu_apicid) = BAD_APICID;
+EXPORT_PER_CPU_SYMBOL(x86_bios_cpu_apicid);
 
 
 /*
@@ -118,19 +122,22 @@ static void __cpuinit MP_processor_info(struct mpc_config_processor *m)
 	physid_set(m->mpc_apicid, phys_cpu_present_map);
  	if (m->mpc_cpuflag & CPU_BOOTPROCESSOR) {
  		/*
- 		 * bios_cpu_apicid is required to have processors listed
+ 		 * x86_bios_cpu_apicid is required to have processors listed
  		 * in same order as logical cpu numbers. Hence the first
  		 * entry is BSP, and so on.
  		 */
 		cpu = 0;
  	}
-	bios_cpu_apicid[cpu] = m->mpc_apicid;
 	/* are we being called early in kernel startup? */
 	if (x86_cpu_to_apicid_early_ptr) {
-		u16 *x86_cpu_to_apicid = (u16 *)x86_cpu_to_apicid_early_ptr;
-		x86_cpu_to_apicid[cpu] = m->mpc_apicid;
+		u16 *cpu_to_apicid = (u16 *)x86_cpu_to_apicid_early_ptr;
+		u16 *bios_cpu_apicid = (u16 *)x86_bios_cpu_apicid_early_ptr;
+
+		cpu_to_apicid[cpu] = m->mpc_apicid;
+		bios_cpu_apicid[cpu] = m->mpc_apicid;
 	} else {
 		per_cpu(x86_cpu_to_apicid, cpu) = m->mpc_apicid;
+		per_cpu(x86_bios_cpu_apicid, cpu) = m->mpc_apicid;
 	}
 
 	cpu_set(cpu, cpu_possible_map);
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 529e45c37b1c..71a420c7fee7 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -362,8 +362,11 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_SMP
 	/* setup to use the early static init tables during kernel startup */
 	x86_cpu_to_apicid_early_ptr = (void *)&x86_cpu_to_apicid_init;
+#ifdef CONFIG_NUMA
 	x86_cpu_to_node_map_early_ptr = (void *)&x86_cpu_to_node_map_init;
 #endif
+	x86_bios_cpu_apicid_early_ptr = (void *)&x86_bios_cpu_apicid_init;
+#endif
 
 #ifdef CONFIG_ACPI
 	/*
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index a8bc2bcdb74a..93071cdf0849 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -864,8 +864,12 @@ void __init smp_set_apicids(void)
 		if (per_cpu_offset(cpu)) {
 			per_cpu(x86_cpu_to_apicid, cpu) =
 						x86_cpu_to_apicid_init[cpu];
+#ifdef CONFIG_NUMA
 			per_cpu(x86_cpu_to_node_map, cpu) =
 						x86_cpu_to_node_map_init[cpu];
+#endif
+			per_cpu(x86_bios_cpu_apicid, cpu) =
+						x86_bios_cpu_apicid_init[cpu];
 		}
 		else
 			printk(KERN_NOTICE "per_cpu_offset zero for cpu %d\n",
@@ -874,7 +878,10 @@ void __init smp_set_apicids(void)
 
 	/* indicate the early static arrays are gone */
 	x86_cpu_to_apicid_early_ptr = NULL;
+#ifdef CONFIG_NUMA
 	x86_cpu_to_node_map_early_ptr = NULL;
+#endif
+	x86_bios_cpu_apicid_early_ptr = NULL;
 }
 
 static void __init smp_cpu_index_default(void)
diff --git a/include/asm-x86/smp_64.h b/include/asm-x86/smp_64.h
index 6fa332db29cc..e0a75519ad21 100644
--- a/include/asm-x86/smp_64.h
+++ b/include/asm-x86/smp_64.h
@@ -27,18 +27,20 @@ extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *),
 				  void *info, int wait);
 
 extern u16 __initdata x86_cpu_to_apicid_init[];
+extern u16 __initdata x86_bios_cpu_apicid_init[];
 extern void *x86_cpu_to_apicid_early_ptr;
-extern u16 bios_cpu_apicid[];
+extern void *x86_bios_cpu_apicid_early_ptr;
 
 DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
 DECLARE_PER_CPU(cpumask_t, cpu_core_map);
 DECLARE_PER_CPU(u16, cpu_llc_id);
 DECLARE_PER_CPU(u16, x86_cpu_to_apicid);
+DECLARE_PER_CPU(u16, x86_bios_cpu_apicid);
 
 static inline int cpu_present_to_apicid(int mps_cpu)
 {
-	if (mps_cpu < NR_CPUS)
-		return (int)bios_cpu_apicid[mps_cpu];
+	if (cpu_present(mps_cpu))
+		return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
 	else
 		return BAD_APICID;
 }
-- 
cgit v1.2.3-59-g8ed1b


From f13bd3e7935f7020f7c622bf3f8cae8eee757a53 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:12 +0100
Subject: x86: use wrmsrl in kprobes.c, step.c

Where x86_32 passed zero in the high 32 bits, use wrmsrl which
will zero extend for us.  This allows ifdefs for 32/64 bit to
be eliminated.

Eliminate ifdef in step.c.  Similar cleanup was done when unifying
kprobes_32|64.c and wrmsr() was chosen there over wrmsrl().  This
patch changes these to wrmsrl.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes.c | 4 ++--
 arch/x86/kernel/step.c    | 4 ----
 2 files changed, 2 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 93aff49798ee..edc0a8e59247 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -410,13 +410,13 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
 static void __kprobes clear_btf(void)
 {
 	if (test_thread_flag(TIF_DEBUGCTLMSR))
-		wrmsr(MSR_IA32_DEBUGCTLMSR, 0, 0);
+		wrmsrl(MSR_IA32_DEBUGCTLMSR, 0);
 }
 
 static void __kprobes restore_btf(void)
 {
 	if (test_thread_flag(TIF_DEBUGCTLMSR))
-		wrmsr(MSR_IA32_DEBUGCTLMSR, current->thread.debugctlmsr, 0);
+		wrmsrl(MSR_IA32_DEBUGCTLMSR, current->thread.debugctlmsr);
 }
 
 static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 5884dd485db8..b801e76cebf7 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -229,11 +229,7 @@ static void write_debugctlmsr(struct task_struct *child, unsigned long val)
 	if (child != current)
 		return;
 
-#ifdef CONFIG_X86_64
 	wrmsrl(MSR_IA32_DEBUGCTLMSR, val);
-#else
-	wrmsr(MSR_IA32_DEBUGCTLMSR, val, 0);
-#endif
 }
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From 37cd9cf3dafed82f7cf905785883300f6ff7c818 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:12 +0100
Subject: x86: common x86_32|64 naming

Rename convert_rip_to_linear to convert_ip_to_linear for shared
X86_32|64 use.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/step.c   | 4 ++--
 arch/x86/mm/fault_32.c   | 2 +-
 arch/x86/mm/fault_64.c   | 2 +-
 include/asm-x86/ptrace.h | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index b801e76cebf7..80b37181a42b 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -89,7 +89,7 @@ unsigned long get_segment_eip(struct pt_regs *regs,
 #ifdef CONFIG_X86_32
 static
 #endif
-unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *regs)
+unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs)
 {
 	unsigned long addr, seg;
 
@@ -136,7 +136,7 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
 {
 	int i, copied;
 	unsigned char opcode[15];
-	unsigned long addr = convert_rip_to_linear(child, regs);
+	unsigned long addr = convert_ip_to_linear(child, regs);
 
 	copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
 	for (i = 0; i < copied; i++) {
diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index b92922a1d65f..b4d19c2d4f05 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -95,7 +95,7 @@ static int is_prefetch(struct pt_regs *regs, unsigned long addr,
 	/* If it was a exec fault ignore */
 	if (error_code & PF_INSTR)
 		return 0;
-	instr = (unsigned char __user *)convert_rip_to_linear(current, regs);
+	instr = (unsigned char __user *)convert_ip_to_linear(current, regs);
 #endif
 
 	max_instr = instr + 15;
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index cf7e99895b91..d519b41f1962 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -98,7 +98,7 @@ static int is_prefetch(struct pt_regs *regs, unsigned long addr,
 	/* If it was a exec fault ignore */
 	if (error_code & PF_INSTR)
 		return 0;
-	instr = (unsigned char __user *)convert_rip_to_linear(current, regs);
+	instr = (unsigned char __user *)convert_ip_to_linear(current, regs);
 #endif
 
 	max_instr = instr + 15;
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index cc4456667d89..35c103714906 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -177,7 +177,7 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 struct task_struct;
 
 extern unsigned long
-convert_rip_to_linear(struct task_struct *child, struct pt_regs *regs);
+convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs);
 
 #endif /* __KERNEL__ */
 #endif /* !__i386__ */
-- 
cgit v1.2.3-59-g8ed1b


From f2857ce92023409df1544737d5b3499b4630a183 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:12 +0100
Subject: x86: remove last user of get_segment_eip

is_prefetch was the last user of get_segment_eip and only on
X86_32.  This function returned the faulting instruction's
address and set the upper segment limit.

Instead, use the convert_ip_to_linear helper and rely on
probe_kernel_address to do the segment checks which was
already done everywhere the segment limit was being checked
on X86_32.

Remove get_segment_eip as well.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/step.c   | 84 ------------------------------------------------
 arch/x86/mm/fault_32.c   | 15 ++-------
 arch/x86/mm/fault_64.c   | 15 ++-------
 include/asm-x86/ptrace.h |  6 ++--
 4 files changed, 8 insertions(+), 112 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 80b37181a42b..2ef1a5f8d675 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -5,90 +5,6 @@
 #include <linux/mm.h>
 #include <linux/ptrace.h>
 
-#ifdef CONFIG_X86_32
-#include <linux/uaccess.h>
-
-#include <asm/desc.h>
-
-/*
- * Return EIP plus the CS segment base.  The segment limit is also
- * adjusted, clamped to the kernel/user address space (whichever is
- * appropriate), and returned in *eip_limit.
- *
- * The segment is checked, because it might have been changed by another
- * task between the original faulting instruction and here.
- *
- * If CS is no longer a valid code segment, or if EIP is beyond the
- * limit, or if it is a kernel address when CS is not a kernel segment,
- * then the returned value will be greater than *eip_limit.
- *
- * This is slow, but is very rarely executed.
- */
-unsigned long get_segment_eip(struct pt_regs *regs,
-					    unsigned long *eip_limit)
-{
-	unsigned long ip = regs->ip;
-	unsigned seg = regs->cs & 0xffff;
-	u32 seg_ar, seg_limit, base, *desc;
-
-	/* Unlikely, but must come before segment checks. */
-	if (unlikely(regs->flags & VM_MASK)) {
-		base = seg << 4;
-		*eip_limit = base + 0xffff;
-		return base + (ip & 0xffff);
-	}
-
-	/* The standard kernel/user address space limit. */
-	*eip_limit = user_mode(regs) ? USER_DS.seg : KERNEL_DS.seg;
-
-	/* By far the most common cases. */
-	if (likely(SEGMENT_IS_FLAT_CODE(seg)))
-		return ip;
-
-	/* Check the segment exists, is within the current LDT/GDT size,
-	   that kernel/user (ring 0..3) has the appropriate privilege,
-	   that it's a code segment, and get the limit. */
-	__asm__("larl %3,%0; lsll %3,%1"
-		 : "=&r" (seg_ar), "=r" (seg_limit) : "0" (0), "rm" (seg));
-	if ((~seg_ar & 0x9800) || ip > seg_limit) {
-		*eip_limit = 0;
-		return 1;	 /* So that returned ip > *eip_limit. */
-	}
-
-	/* Get the GDT/LDT descriptor base.
-	   When you look for races in this code remember that
-	   LDT and other horrors are only used in user space. */
-	if (seg & (1<<2)) {
-		/* Must lock the LDT while reading it. */
-		mutex_lock(&current->mm->context.lock);
-		desc = current->mm->context.ldt;
-		desc = (void *)desc + (seg & ~7);
-	} else {
-		/* Must disable preemption while reading the GDT. */
-		desc = (u32 *)get_cpu_gdt_table(get_cpu());
-		desc = (void *)desc + (seg & ~7);
-	}
-
-	/* Decode the code segment base from the descriptor */
-	base = get_desc_base((struct desc_struct *)desc);
-
-	if (seg & (1<<2))
-		mutex_unlock(&current->mm->context.lock);
-	else
-		put_cpu();
-
-	/* Adjust EIP and segment limit, and clamp at the kernel limit.
-	   It's legitimate for segments to wrap at 0xffffffff. */
-	seg_limit += base;
-	if (seg_limit < *eip_limit && seg_limit >= base)
-		*eip_limit = seg_limit;
-	return ip + base;
-}
-#endif
-
-#ifdef CONFIG_X86_32
-static
-#endif
 unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs)
 {
 	unsigned long addr, seg;
diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index b4d19c2d4f05..36cb67e02b04 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -81,7 +81,6 @@ static int is_prefetch(struct pt_regs *regs, unsigned long addr,
 	unsigned char *max_instr;
 
 #ifdef CONFIG_X86_32
-	unsigned long limit;
 	if (unlikely(boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
 		     boot_cpu_data.x86 >= 6)) {
 		/* Catch an obscure case of prefetch inside an NX page. */
@@ -90,30 +89,23 @@ static int is_prefetch(struct pt_regs *regs, unsigned long addr,
 	} else {
 		return 0;
 	}
-	instr = (unsigned char *)get_segment_eip(regs, &limit);
 #else
 	/* If it was a exec fault ignore */
 	if (error_code & PF_INSTR)
 		return 0;
-	instr = (unsigned char __user *)convert_ip_to_linear(current, regs);
 #endif
 
+	instr = (unsigned char *)convert_ip_to_linear(current, regs);
 	max_instr = instr + 15;
 
-#ifdef CONFIG_X86_64
 	if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE)
 		return 0;
-#endif
 
 	while (scan_more && instr < max_instr) {
 		unsigned char opcode;
 		unsigned char instr_hi;
 		unsigned char instr_lo;
 
-#ifdef CONFIG_X86_32
-		if (instr > (unsigned char *)limit)
-			break;
-#endif
 		if (probe_kernel_address(instr, opcode))
 			break;
 
@@ -155,10 +147,7 @@ static int is_prefetch(struct pt_regs *regs, unsigned long addr,
 		case 0x00:
 			/* Prefetch instruction is 0x0F0D or 0x0F18 */
 			scan_more = 0;
-#ifdef CONFIG_X86_32
-			if (instr > (unsigned char *)limit)
-				break;
-#endif
+
 			if (probe_kernel_address(instr, opcode))
 				break;
 			prefetch = (instr_lo == 0xF) &&
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index d519b41f1962..80f8436ac8b2 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -84,7 +84,6 @@ static int is_prefetch(struct pt_regs *regs, unsigned long addr,
 	unsigned char *max_instr;
 
 #ifdef CONFIG_X86_32
-	unsigned long limit;
 	if (unlikely(boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
 		     boot_cpu_data.x86 >= 6)) {
 		/* Catch an obscure case of prefetch inside an NX page. */
@@ -93,30 +92,23 @@ static int is_prefetch(struct pt_regs *regs, unsigned long addr,
 	} else {
 		return 0;
 	}
-	instr = (unsigned char *)get_segment_eip(regs, &limit);
 #else
 	/* If it was a exec fault ignore */
 	if (error_code & PF_INSTR)
 		return 0;
-	instr = (unsigned char __user *)convert_ip_to_linear(current, regs);
 #endif
 
+	instr = (unsigned char *)convert_ip_to_linear(current, regs);
 	max_instr = instr + 15;
 
-#ifdef CONFIG_X86_64
 	if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE)
 		return 0;
-#endif
 
 	while (scan_more && instr < max_instr) {
 		unsigned char opcode;
 		unsigned char instr_hi;
 		unsigned char instr_lo;
 
-#ifdef CONFIG_X86_32
-		if (instr > (unsigned char *)limit)
-			break;
-#endif
 		if (probe_kernel_address(instr, opcode))
 			break;
 
@@ -158,10 +150,7 @@ static int is_prefetch(struct pt_regs *regs, unsigned long addr,
 		case 0x00:
 			/* Prefetch instruction is 0x0F0D or 0x0F18 */
 			scan_more = 0;
-#ifdef CONFIG_X86_32
-			if (instr > (unsigned char *)limit)
-				break;
-#endif
+
 			if (probe_kernel_address(instr, opcode))
 				break;
 			prefetch = (instr_lo == 0xF) &&
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index 35c103714906..ee4b595e1ccc 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -70,6 +70,10 @@ struct pt_regs {
 #include <asm/segment.h>
 
 struct task_struct;
+
+extern unsigned long
+convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs);
+
 extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code);
 
 /*
@@ -184,8 +188,6 @@ convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs);
 
 #ifdef __KERNEL__
 
-unsigned long get_segment_eip(struct pt_regs *regs, unsigned long *eip_limit);
-
 /*
  * These are defined as per linux/ptrace.h, which see.
  */
-- 
cgit v1.2.3-59-g8ed1b


From 608566b4edda5079c7812c2108a89c0fcf2894bb Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:12 +0100
Subject: x86: do_page_fault small unification

Copy the prefetch of map_sem from X86_64 and move the check
notify_page_fault (soon to be kprobe_handle_fault) out of
the unlikely if() statement.

This makes the X86_32|64 pagefault handlers closer to each
other.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 16 +++++++---------
 arch/x86/mm/fault_64.c |  7 ++-----
 2 files changed, 9 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 36cb67e02b04..52c13d2e011e 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -295,13 +295,18 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	 */
 	trace_hardirqs_fixup();
 
+	tsk = current;
+	mm = tsk->mm;
+	prefetchw(&mm->mmap_sem);
+
 	/* get the address */
 	address = read_cr2();
 
-	tsk = current;
-
 	si_code = SEGV_MAPERR;
 
+	if (notify_page_fault(regs))
+		return;
+
 	/*
 	 * We fault-in kernel-space virtual memory on-demand. The
 	 * 'reference' page table is init_mm.pgd.
@@ -319,8 +324,6 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
 		    vmalloc_fault(address) >= 0)
 			return;
-		if (notify_page_fault(regs))
-			return;
 		/*
 		 * Don't take the mm semaphore here. If we fixup a prefetch
 		 * fault we could otherwise deadlock.
@@ -328,16 +331,11 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 		goto bad_area_nosemaphore;
 	}
 
-	if (notify_page_fault(regs))
-		return;
-
 	/* It's safe to allow irq's after cr2 has been saved and the vmalloc
 	   fault has been handled. */
 	if (regs->flags & (X86_EFLAGS_IF|VM_MASK))
 		local_irq_enable();
 
-	mm = tsk->mm;
-
 	/*
 	 * If we're in an interrupt, have no user context or are running in an
 	 * atomic region then we must not take the fault.
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 80f8436ac8b2..c6b3ad515cf1 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -355,6 +355,8 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 
 	si_code = SEGV_MAPERR;
 
+	if (notify_page_fault(regs))
+		return;
 
 	/*
 	 * We fault-in kernel-space virtual memory on-demand. The
@@ -380,8 +382,6 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 			if (vmalloc_fault(address) >= 0)
 				return;
 		}
-		if (notify_page_fault(regs))
-			return;
 		/*
 		 * Don't take the mm semaphore here. If we fixup a prefetch
 		 * fault we could otherwise deadlock.
@@ -389,9 +389,6 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 		goto bad_area_nosemaphore;
 	}
 
-	if (notify_page_fault(regs))
-		return;
-
 	if (likely(regs->flags & X86_EFLAGS_IF))
 		local_irq_enable();
 
-- 
cgit v1.2.3-59-g8ed1b


From 6f4d368ef9e9f91aa0019c11e90773ea32d94625 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:13 +0100
Subject: x86: last of trivial fault_32|64.c unification

Comments, indentation, printk format.

Uses task_pid_nr() on X86_64 now, but this is always defined
to task->pid.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 20 ++++++++++++--------
 arch/x86/mm/fault_64.c | 29 +++++++++++++++++++----------
 2 files changed, 31 insertions(+), 18 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 52c13d2e011e..31113deeb7c0 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -36,10 +36,10 @@
  *	bit 3 == 1 means use of reserved bit detected
  *	bit 4 == 1 means fault was an instruction fetch
  */
-#define PF_PROT	(1<<0)
+#define PF_PROT		(1<<0)
 #define PF_WRITE	(1<<1)
-#define PF_USER	(1<<2)
-#define PF_RSVD	(1<<3)
+#define PF_USER		(1<<2)
+#define PF_RSVD		(1<<3)
 #define PF_INSTR	(1<<4)
 
 static inline int notify_page_fault(struct pt_regs *regs)
@@ -460,11 +460,15 @@ bad_area_nosemaphore:
 
 		if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
 		    printk_ratelimit()) {
-			printk("%s%s[%d]: segfault at %08lx ip %08lx "
-			    "sp %08lx error %lx\n",
-			    task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
-			    tsk->comm, task_pid_nr(tsk), address, regs->ip,
-			    regs->sp, error_code);
+			printk(
+#ifdef CONFIG_X86_32
+			"%s%s[%d]: segfault at %08lx ip %08lx sp %08lx error %lx\n",
+#else
+			"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx\n",
+#endif
+			task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
+			tsk->comm, task_pid_nr(tsk), address, regs->ip,
+			regs->sp, error_code);
 		}
 		tsk->thread.cr2 = address;
 		/* Kernel addresses are always protection faults */
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index c6b3ad515cf1..c48d95c306df 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -440,8 +440,11 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	if (!(vma->vm_flags & VM_GROWSDOWN))
 		goto bad_area;
 	if (error_code & PF_USER) {
-		/* Allow userspace just enough access below the stack pointer
-		 * to let the 'enter' instruction work.
+		/*
+		 * Accessing the stack below %sp is always a bug.
+		 * The large cushion allows instructions like enter
+		 * and pusha to work.  ("enter $65535,$31" pushes
+		 * 32 pointers and then decrements %sp by 65535.)
 		 */
 		if (address + 65536 + 32 * sizeof(unsigned long) < regs->sp)
 			goto bad_area;
@@ -522,10 +525,14 @@ bad_area_nosemaphore:
 		if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
 		    printk_ratelimit()) {
 			printk(
-		       "%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx\n",
-					tsk->pid > 1 ? KERN_INFO : KERN_EMERG,
-					tsk->comm, tsk->pid, address, regs->ip,
-					regs->sp, error_code);
+#ifdef CONFIG_X86_32
+			"%s%s[%d]: segfault at %08lx ip %08lx sp %08lx error %lx\n",
+#else
+			"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx\n",
+#endif
+			task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
+			tsk->comm, task_pid_nr(tsk), address, regs->ip,
+			regs->sp, error_code);
 		}
 
 		tsk->thread.cr2 = address;
@@ -609,10 +616,12 @@ LIST_HEAD(pgd_list);
 
 void vmalloc_sync_all(void)
 {
-	/* Note that races in the updates of insync and start aren't
-	   problematic:
-	   insync can only get set bits added, and updates to start are only
-	   improving performance (without affecting correctness if undone). */
+	/*
+	 * Note that races in the updates of insync and start aren't
+	 * problematic: insync can only get set bits added, and updates to
+	 * start are only improving performance (without affecting correctness
+	 * if undone).
+	 */
 	static DECLARE_BITMAP(insync, PTRS_PER_PGD);
 	static unsigned long start = VMALLOC_START & PGDIR_MASK;
 	unsigned long address;
-- 
cgit v1.2.3-59-g8ed1b


From fdfe8aa84dd78cfdff427d0520f5974fb5e9c220 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:13 +0100
Subject: x86: function ifdefs in fault_32|64.c

Add caller of is_errata93() to X86_32, ifdef'd to do
nothing.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++---
 arch/x86/mm/fault_64.c | 30 ++++++++++++++++++++++---
 2 files changed, 83 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 31113deeb7c0..eba90198b15a 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -217,6 +217,7 @@ KERN_ERR "******* Your BIOS seems to not contain a fix for K8 errata #93\n"
 KERN_ERR "******* Working around it, but it may cause SEGVs or burn power.\n"
 KERN_ERR "******* Please consider a BIOS update.\n"
 KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
+#endif
 
 /* Workaround for K8 erratum #93 & buggy BIOS.
    BIOS SMM functions are required to use a specific workaround
@@ -224,10 +225,12 @@ KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
    A lot of BIOS that didn't get tested properly miss this.
    The OS sees this as a page fault with the upper 32bits of RIP cleared.
    Try to work around it here.
-   Note we only handle faults in kernel here. */
-
+   Note we only handle faults in kernel here.
+   Does nothing for X86_32
+ */
 static int is_errata93(struct pt_regs *regs, unsigned long address)
 {
+#ifdef CONFIG_X86_64
 	static int warned;
 	if (address != regs->ip)
 		return 0;
@@ -243,9 +246,10 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
 		regs->ip = address;
 		return 1;
 	}
+#endif
 	return 0;
 }
-#endif
+
 
 /*
  * Handle a fault on the vmalloc or module mapping area
@@ -254,6 +258,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
  */
 static inline int vmalloc_fault(unsigned long address)
 {
+#ifdef CONFIG_X86_32
 	unsigned long pgd_paddr;
 	pmd_t *pmd_k;
 	pte_t *pte_k;
@@ -272,6 +277,51 @@ static inline int vmalloc_fault(unsigned long address)
 	if (!pte_present(*pte_k))
 		return -1;
 	return 0;
+#else
+	pgd_t *pgd, *pgd_ref;
+	pud_t *pud, *pud_ref;
+	pmd_t *pmd, *pmd_ref;
+	pte_t *pte, *pte_ref;
+
+	/* Copy kernel mappings over when needed. This can also
+	   happen within a race in page table update. In the later
+	   case just flush. */
+
+	pgd = pgd_offset(current->mm ?: &init_mm, address);
+	pgd_ref = pgd_offset_k(address);
+	if (pgd_none(*pgd_ref))
+		return -1;
+	if (pgd_none(*pgd))
+		set_pgd(pgd, *pgd_ref);
+	else
+		BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
+
+	/* Below here mismatches are bugs because these lower tables
+	   are shared */
+
+	pud = pud_offset(pgd, address);
+	pud_ref = pud_offset(pgd_ref, address);
+	if (pud_none(*pud_ref))
+		return -1;
+	if (pud_none(*pud) || pud_page_vaddr(*pud) != pud_page_vaddr(*pud_ref))
+		BUG();
+	pmd = pmd_offset(pud, address);
+	pmd_ref = pmd_offset(pud_ref, address);
+	if (pmd_none(*pmd_ref))
+		return -1;
+	if (pmd_none(*pmd) || pmd_page(*pmd) != pmd_page(*pmd_ref))
+		BUG();
+	pte_ref = pte_offset_kernel(pmd_ref, address);
+	if (!pte_present(*pte_ref))
+		return -1;
+	pte = pte_offset_kernel(pmd, address);
+	/* Don't use pte_page here, because the mappings can point
+	   outside mem_map, and the NUMA hash lookup cannot handle
+	   that. */
+	if (!pte_present(*pte) || pte_pfn(*pte) != pte_pfn(*pte_ref))
+		BUG();
+	return 0;
+#endif
 }
 
 int show_unhandled_signals = 1;
@@ -507,6 +557,9 @@ no_context:
 	if (is_prefetch(regs, address, error_code))
 		return;
 
+	if (is_errata93(regs, address))
+		return;
+
 /*
  * Oops. The kernel tried to access some bad page. We'll have to
  * terminate things with extreme prejudice.
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index c48d95c306df..75b7b165bdf3 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -223,6 +223,7 @@ KERN_ERR "******* Your BIOS seems to not contain a fix for K8 errata #93\n"
 KERN_ERR "******* Working around it, but it may cause SEGVs or burn power.\n"
 KERN_ERR "******* Please consider a BIOS update.\n"
 KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
+#endif
 
 /* Workaround for K8 erratum #93 & buggy BIOS.
    BIOS SMM functions are required to use a specific workaround
@@ -230,10 +231,12 @@ KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
    A lot of BIOS that didn't get tested properly miss this.
    The OS sees this as a page fault with the upper 32bits of RIP cleared.
    Try to work around it here.
-   Note we only handle faults in kernel here. */
-
+   Note we only handle faults in kernel here.
+   Does nothing for X86_32
+ */
 static int is_errata93(struct pt_regs *regs, unsigned long address)
 {
+#ifdef CONFIG_X86_64
 	static int warned;
 	if (address != regs->ip)
 		return 0;
@@ -249,9 +252,9 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
 		regs->ip = address;
 		return 1;
 	}
+#endif
 	return 0;
 }
-#endif
 
 static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
 				 unsigned long error_code)
@@ -278,6 +281,26 @@ static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
  */
 static int vmalloc_fault(unsigned long address)
 {
+#ifdef CONFIG_X86_32
+	unsigned long pgd_paddr;
+	pmd_t *pmd_k;
+	pte_t *pte_k;
+	/*
+	 * Synchronize this task's top level page-table
+	 * with the 'reference' page table.
+	 *
+	 * Do _not_ use "current" here. We might be inside
+	 * an interrupt in the middle of a task switch..
+	 */
+	pgd_paddr = read_cr3();
+	pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
+	if (!pmd_k)
+		return -1;
+	pte_k = pte_offset_kernel(pmd_k, address);
+	if (!pte_present(*pte_k))
+		return -1;
+	return 0;
+#else
 	pgd_t *pgd, *pgd_ref;
 	pud_t *pud, *pud_ref;
 	pmd_t *pmd, *pmd_ref;
@@ -321,6 +344,7 @@ static int vmalloc_fault(unsigned long address)
 	if (!pte_present(*pte) || pte_pfn(*pte) != pte_pfn(*pte_ref))
 		BUG();
 	return 0;
+#endif
 }
 
 int show_unhandled_signals = 1;
-- 
cgit v1.2.3-59-g8ed1b


From 6b8be6df7f971919622d152d144c8798ad7fd160 Mon Sep 17 00:00:00 2001
From: John Reiser <jreiser@BitWagon.com>
Date: Wed, 30 Jan 2008 13:33:13 +0100
Subject: x86: add ENDPROC() markers

The ENDPROCs() were not used everywhere.  Some code used just END() instead,
while other code used nothing.  um/sys-i386/checksum.S didn't #include
<linux/linkage.h> .  I also got confused because gcc puts the
.type near the ENTRY, while ENDPROC puts it on the opposite end.

Signed off by: John Reiser <jreiser@BitWagon.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/lib/semaphore_32.S | 20 ++++++++++----------
 include/linux/linkage.h     |  4 ++++
 2 files changed, 14 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/lib/semaphore_32.S b/arch/x86/lib/semaphore_32.S
index 444fba400983..e2c6e0d5e125 100644
--- a/arch/x86/lib/semaphore_32.S
+++ b/arch/x86/lib/semaphore_32.S
@@ -49,7 +49,7 @@ ENTRY(__down_failed)
 	ENDFRAME
 	ret
 	CFI_ENDPROC
-	END(__down_failed)
+	ENDPROC(__down_failed)
 
 ENTRY(__down_failed_interruptible)
 	CFI_STARTPROC
@@ -70,7 +70,7 @@ ENTRY(__down_failed_interruptible)
 	ENDFRAME
 	ret
 	CFI_ENDPROC
-	END(__down_failed_interruptible)
+	ENDPROC(__down_failed_interruptible)
 
 ENTRY(__down_failed_trylock)
 	CFI_STARTPROC
@@ -91,7 +91,7 @@ ENTRY(__down_failed_trylock)
 	ENDFRAME
 	ret
 	CFI_ENDPROC
-	END(__down_failed_trylock)
+	ENDPROC(__down_failed_trylock)
 
 ENTRY(__up_wakeup)
 	CFI_STARTPROC
@@ -112,7 +112,7 @@ ENTRY(__up_wakeup)
 	ENDFRAME
 	ret
 	CFI_ENDPROC
-	END(__up_wakeup)
+	ENDPROC(__up_wakeup)
 
 /*
  * rw spinlock fallbacks
@@ -132,7 +132,7 @@ ENTRY(__write_lock_failed)
 	ENDFRAME
 	ret
 	CFI_ENDPROC
-	END(__write_lock_failed)
+	ENDPROC(__write_lock_failed)
 
 ENTRY(__read_lock_failed)
 	CFI_STARTPROC
@@ -148,7 +148,7 @@ ENTRY(__read_lock_failed)
 	ENDFRAME
 	ret
 	CFI_ENDPROC
-	END(__read_lock_failed)
+	ENDPROC(__read_lock_failed)
 
 #endif
 
@@ -170,7 +170,7 @@ ENTRY(call_rwsem_down_read_failed)
 	CFI_ADJUST_CFA_OFFSET -4
 	ret
 	CFI_ENDPROC
-	END(call_rwsem_down_read_failed)
+	ENDPROC(call_rwsem_down_read_failed)
 
 ENTRY(call_rwsem_down_write_failed)
 	CFI_STARTPROC
@@ -182,7 +182,7 @@ ENTRY(call_rwsem_down_write_failed)
 	CFI_ADJUST_CFA_OFFSET -4
 	ret
 	CFI_ENDPROC
-	END(call_rwsem_down_write_failed)
+	ENDPROC(call_rwsem_down_write_failed)
 
 ENTRY(call_rwsem_wake)
 	CFI_STARTPROC
@@ -196,7 +196,7 @@ ENTRY(call_rwsem_wake)
 	CFI_ADJUST_CFA_OFFSET -4
 1:	ret
 	CFI_ENDPROC
-	END(call_rwsem_wake)
+	ENDPROC(call_rwsem_wake)
 
 /* Fix up special calling conventions */
 ENTRY(call_rwsem_downgrade_wake)
@@ -214,6 +214,6 @@ ENTRY(call_rwsem_downgrade_wake)
 	CFI_ADJUST_CFA_OFFSET -4
 	ret
 	CFI_ENDPROC
-	END(call_rwsem_downgrade_wake)
+	ENDPROC(call_rwsem_downgrade_wake)
 
 #endif
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index ceeeb5ea5b15..3faf599ea58e 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -57,6 +57,10 @@
   .size name, .-name
 #endif
 
+/* If symbol 'name' is treated as a subroutine (gets called, and returns)
+ * then please use ENDPROC to mark 'name' as STT_FUNC for the benefit of
+ * static analysis tools such as stack depth analyzer.
+ */
 #ifndef ENDPROC
 #define ENDPROC(name) \
   .type name, @function; \
-- 
cgit v1.2.3-59-g8ed1b


From 0723a69a63beec1ca6e792239ef75d0181387ef0 Mon Sep 17 00:00:00 2001
From: Benjamin LaHaise <bcrl@kvack.org>
Date: Wed, 30 Jan 2008 13:33:13 +0100
Subject: x86: fix synchronize_rcu(): high latency on idle system

an otherwise idle system takes about 3 ticks per network
interface in unregister_netdev() due to multiple calls to synchronize_rcu(),
which adds up to quite a few seconds for tearing down thousands of
interfaces.  By flushing pending rcu callbacks in the idle loop, the system
makes progress hundreds of times faster.  If this is indeed a sane thing to,
it probably needs to be done for other architectures than x86.  And yes, the
network stack shouldn't call synchronize_rcu() quite so much, but fixing that
is a little more involved.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_32.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 7a61b54649de..69a69c3f43bb 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -198,6 +198,9 @@ void cpu_idle(void)
 			rmb();
 			idle = pm_idle;
 
+			if (rcu_pending(cpu))
+				rcu_check_callbacks(cpu, 0);
+
 			if (!idle)
 				idle = default_idle;
 
-- 
cgit v1.2.3-59-g8ed1b


From fb8830e72d9bd86f1e7b6886cb1886c391130f86 Mon Sep 17 00:00:00 2001
From: Abhishek Sagar <sagar.abhishek@gmail.com>
Date: Wed, 30 Jan 2008 13:33:13 +0100
Subject: x86: fix singlestep handling in reenter_kprobe

Highlight peculiar cases in singles-step kprobe handling.

In reenter_kprobe(), a breakpoint in KPROBE_HIT_SS case can only occur
when single-stepping a breakpoint on which a probe was installed. Since
such probes are single-stepped inline, identifying these cases is
unambiguous. All other cases leading up to KPROBE_HIT_SS are possible
bugs. Identify and WARN_ON such cases.

Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/kprobes.c | 28 +++++++++++++---------------
 1 file changed, 13 insertions(+), 15 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index edc0a8e59247..f7ddbb8c3fe8 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -443,17 +443,6 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 	*sara = (unsigned long) &kretprobe_trampoline;
 }
 
-static void __kprobes recursive_singlestep(struct kprobe *p,
-					   struct pt_regs *regs,
-					   struct kprobe_ctlblk *kcb)
-{
-	save_previous_kprobe(kcb);
-	set_current_kprobe(p, regs, kcb);
-	kprobes_inc_nmissed_count(p);
-	prepare_singlestep(p, regs);
-	kcb->kprobe_status = KPROBE_REENTER;
-}
-
 static void __kprobes setup_singlestep(struct kprobe *p, struct pt_regs *regs,
 				       struct kprobe_ctlblk *kcb)
 {
@@ -492,20 +481,29 @@ static int __kprobes reenter_kprobe(struct kprobe *p, struct pt_regs *regs,
 		break;
 #endif
 	case KPROBE_HIT_ACTIVE:
-		recursive_singlestep(p, regs, kcb);
+		save_previous_kprobe(kcb);
+		set_current_kprobe(p, regs, kcb);
+		kprobes_inc_nmissed_count(p);
+		prepare_singlestep(p, regs);
+		kcb->kprobe_status = KPROBE_REENTER;
 		break;
 	case KPROBE_HIT_SS:
-		if (*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
+		if (p == kprobe_running()) {
 			regs->flags &= ~TF_MASK;
 			regs->flags |= kcb->kprobe_saved_flags;
 			return 0;
 		} else {
-			recursive_singlestep(p, regs, kcb);
+			/* A probe has been hit in the codepath leading up
+			 * to, or just after, single-stepping of a probed
+			 * instruction. This entire codepath should strictly
+			 * reside in .kprobes.text section. Raise a warning
+			 * to highlight this peculiar case.
+			 */
 		}
-		break;
 	default:
 		/* impossible cases */
 		WARN_ON(1);
+		return 0;
 	}
 
 	return 1;
-- 
cgit v1.2.3-59-g8ed1b


From 466eed22d127a1f16e1251cdc54a9f8f944140c0 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Wed, 30 Jan 2008 13:33:14 +0100
Subject: x86: isolate PIC/PIT in/out calls

Rather than remove and/or mangle inb_p/outb_p we want to remove the use
of them from inappropriate places. For the PIC/PIT this may eventually
depend on 32/64bitism or similar so start by adding inb/outb_pit and
inb/outb_pic so that we can make them use any scheme we settle on without
disturbing the existing, correct (for ISA), port 0x80 usage. (eg we can
make inb_pit use udelay without messing up inb_p).

Floppy already does this for the fdc. That really only leaves the CMOS as
a core logic item to tackle, and bits of parallel port handling in the
chipset layers.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apm_32.c      |  6 +++---
 arch/x86/kernel/i8253.c       | 30 +++++++++++++++---------------
 arch/x86/kernel/i8259_32.c    | 20 ++++++++++----------
 arch/x86/kernel/i8259_64.c    | 20 ++++++++++----------
 arch/x86/kernel/vmiclock_32.c |  2 +-
 include/asm-x86/i8253.h       |  3 +++
 include/asm-x86/i8259.h       |  3 +++
 7 files changed, 45 insertions(+), 39 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 955dd43b1676..d4438ef296d8 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -1174,11 +1174,11 @@ static void reinit_timer(void)
 
 	spin_lock_irqsave(&i8253_lock, flags);
 	/* set the clock to HZ */
-	outb_p(0x34, PIT_MODE);		/* binary, mode 2, LSB/MSB, ch 0 */
+	outb_pit(0x34, PIT_MODE);		/* binary, mode 2, LSB/MSB, ch 0 */
 	udelay(10);
-	outb_p(LATCH & 0xff, PIT_CH0);	/* LSB */
+	outb_pit(LATCH & 0xff, PIT_CH0);	/* LSB */
 	udelay(10);
-	outb(LATCH >> 8, PIT_CH0);	/* MSB */
+	outb_pit(LATCH >> 8, PIT_CH0);	/* MSB */
 	udelay(10);
 	spin_unlock_irqrestore(&i8253_lock, flags);
 #endif
diff --git a/arch/x86/kernel/i8253.c b/arch/x86/kernel/i8253.c
index c76fef1ce355..ef62b07b2b48 100644
--- a/arch/x86/kernel/i8253.c
+++ b/arch/x86/kernel/i8253.c
@@ -43,26 +43,26 @@ static void init_pit_timer(enum clock_event_mode mode,
 	switch(mode) {
 	case CLOCK_EVT_MODE_PERIODIC:
 		/* binary, mode 2, LSB/MSB, ch 0 */
-		outb_p(0x34, PIT_MODE);
-		outb_p(LATCH & 0xff , PIT_CH0);	/* LSB */
-		outb(LATCH >> 8 , PIT_CH0);	/* MSB */
+		outb_pit(0x34, PIT_MODE);
+		outb_pit(LATCH & 0xff , PIT_CH0);	/* LSB */
+		outb_pit(LATCH >> 8 , PIT_CH0);		/* MSB */
 		break;
 
 	case CLOCK_EVT_MODE_SHUTDOWN:
 	case CLOCK_EVT_MODE_UNUSED:
 		if (evt->mode == CLOCK_EVT_MODE_PERIODIC ||
 		    evt->mode == CLOCK_EVT_MODE_ONESHOT) {
-			outb_p(0x30, PIT_MODE);
-			outb_p(0, PIT_CH0);
-			outb_p(0, PIT_CH0);
+			outb_pit(0x30, PIT_MODE);
+			outb_pit(0, PIT_CH0);
+			outb_pit(0, PIT_CH0);
 		}
 		pit_disable_clocksource();
 		break;
 
 	case CLOCK_EVT_MODE_ONESHOT:
 		/* One shot setup */
-		outb_p(0x38, PIT_MODE);
 		pit_disable_clocksource();
+		outb_pit(0x38, PIT_MODE);
 		break;
 
 	case CLOCK_EVT_MODE_RESUME:
@@ -80,8 +80,8 @@ static void init_pit_timer(enum clock_event_mode mode,
 static int pit_next_event(unsigned long delta, struct clock_event_device *evt)
 {
 	spin_lock(&i8253_lock);
-	outb_p(delta & 0xff , PIT_CH0);	/* LSB */
-	outb(delta >> 8 , PIT_CH0);	/* MSB */
+	outb_pit(delta & 0xff , PIT_CH0);	/* LSB */
+	outb_pit(delta >> 8 , PIT_CH0);		/* MSB */
 	spin_unlock(&i8253_lock);
 
 	return 0;
@@ -153,15 +153,15 @@ static cycle_t pit_read(void)
 	 * count), it cannot be newer.
 	 */
 	jifs = jiffies;
-	outb_p(0x00, PIT_MODE);	/* latch the count ASAP */
-	count = inb_p(PIT_CH0);	/* read the latched count */
-	count |= inb_p(PIT_CH0) << 8;
+	outb_pit(0x00, PIT_MODE);	/* latch the count ASAP */
+	count = inb_pit(PIT_CH0);	/* read the latched count */
+	count |= inb_pit(PIT_CH0) << 8;
 
 	/* VIA686a test code... reset the latch if count > max + 1 */
 	if (count > LATCH) {
-		outb_p(0x34, PIT_MODE);
-		outb_p(LATCH & 0xff, PIT_CH0);
-		outb(LATCH >> 8, PIT_CH0);
+		outb_pit(0x34, PIT_MODE);
+		outb_pit(LATCH & 0xff, PIT_CH0);
+		outb_pit(LATCH >> 8, PIT_CH0);
 		count = LATCH - 1;
 	}
 
diff --git a/arch/x86/kernel/i8259_32.c b/arch/x86/kernel/i8259_32.c
index f201e7da1bbc..2d25b77102fe 100644
--- a/arch/x86/kernel/i8259_32.c
+++ b/arch/x86/kernel/i8259_32.c
@@ -289,20 +289,20 @@ void init_8259A(int auto_eoi)
 	outb(0xff, PIC_SLAVE_IMR);	/* mask all of 8259A-2 */
 
 	/*
-	 * outb_p - this has to work on a wide range of PC hardware.
+	 * outb_pic - this has to work on a wide range of PC hardware.
 	 */
-	outb_p(0x11, PIC_MASTER_CMD);	/* ICW1: select 8259A-1 init */
-	outb_p(0x20 + 0, PIC_MASTER_IMR);	/* ICW2: 8259A-1 IR0-7 mapped to 0x20-0x27 */
-	outb_p(1U << PIC_CASCADE_IR, PIC_MASTER_IMR);	/* 8259A-1 (the master) has a slave on IR2 */
+	outb_pic(0x11, PIC_MASTER_CMD);	/* ICW1: select 8259A-1 init */
+	outb_pic(0x20 + 0, PIC_MASTER_IMR);	/* ICW2: 8259A-1 IR0-7 mapped to 0x20-0x27 */
+	outb_pic(1U << PIC_CASCADE_IR, PIC_MASTER_IMR);	/* 8259A-1 (the master) has a slave on IR2 */
 	if (auto_eoi)	/* master does Auto EOI */
-		outb_p(MASTER_ICW4_DEFAULT | PIC_ICW4_AEOI, PIC_MASTER_IMR);
+		outb_pic(MASTER_ICW4_DEFAULT | PIC_ICW4_AEOI, PIC_MASTER_IMR);
 	else		/* master expects normal EOI */
-		outb_p(MASTER_ICW4_DEFAULT, PIC_MASTER_IMR);
+		outb_pic(MASTER_ICW4_DEFAULT, PIC_MASTER_IMR);
 
-	outb_p(0x11, PIC_SLAVE_CMD);	/* ICW1: select 8259A-2 init */
-	outb_p(0x20 + 8, PIC_SLAVE_IMR);	/* ICW2: 8259A-2 IR0-7 mapped to 0x28-0x2f */
-	outb_p(PIC_CASCADE_IR, PIC_SLAVE_IMR);	/* 8259A-2 is a slave on master's IR2 */
-	outb_p(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR); /* (slave's support for AEOI in flat mode is to be investigated) */
+	outb_pic(0x11, PIC_SLAVE_CMD);	/* ICW1: select 8259A-2 init */
+	outb_pic(0x20 + 8, PIC_SLAVE_IMR);	/* ICW2: 8259A-2 IR0-7 mapped to 0x28-0x2f */
+	outb_pic(PIC_CASCADE_IR, PIC_SLAVE_IMR);	/* 8259A-2 is a slave on master's IR2 */
+	outb_pic(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR); /* (slave's support for AEOI in flat mode is to be investigated) */
 	if (auto_eoi)
 		/*
 		 * In AEOI mode we just have to mask the interrupt
diff --git a/arch/x86/kernel/i8259_64.c b/arch/x86/kernel/i8259_64.c
index 99c8406ae253..d3edb9f23f2c 100644
--- a/arch/x86/kernel/i8259_64.c
+++ b/arch/x86/kernel/i8259_64.c
@@ -359,25 +359,25 @@ void init_8259A(int auto_eoi)
 	outb(0xff, PIC_SLAVE_IMR);	/* mask all of 8259A-2 */
 
 	/*
-	 * outb_p - this has to work on a wide range of PC hardware.
+	 * outb_pic - this has to work on a wide range of PC hardware.
 	 */
-	outb_p(0x11, PIC_MASTER_CMD);	/* ICW1: select 8259A-1 init */
+	outb_pic(0x11, PIC_MASTER_CMD);	/* ICW1: select 8259A-1 init */
 	/* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 */
-	outb_p(IRQ0_VECTOR, PIC_MASTER_IMR);
+	outb_pic(IRQ0_VECTOR, PIC_MASTER_IMR);
 	/* 8259A-1 (the master) has a slave on IR2 */
-	outb_p(0x04, PIC_MASTER_IMR);
+	outb_pic(0x04, PIC_MASTER_IMR);
 	if (auto_eoi)	/* master does Auto EOI */
-		outb_p(MASTER_ICW4_DEFAULT | PIC_ICW4_AEOI, PIC_MASTER_IMR);
+		outb_pic(MASTER_ICW4_DEFAULT | PIC_ICW4_AEOI, PIC_MASTER_IMR);
 	else		/* master expects normal EOI */
-		outb_p(MASTER_ICW4_DEFAULT, PIC_MASTER_IMR);
+		outb_pic(MASTER_ICW4_DEFAULT, PIC_MASTER_IMR);
 
-	outb_p(0x11, PIC_SLAVE_CMD);	/* ICW1: select 8259A-2 init */
+	outb_pic(0x11, PIC_SLAVE_CMD);	/* ICW1: select 8259A-2 init */
 	/* ICW2: 8259A-2 IR0-7 mapped to 0x38-0x3f */
-	outb_p(IRQ8_VECTOR, PIC_SLAVE_IMR);
+	outb_pic(IRQ8_VECTOR, PIC_SLAVE_IMR);
 	/* 8259A-2 is a slave on master's IR2 */
-	outb_p(PIC_CASCADE_IR, PIC_SLAVE_IMR);
+	outb_pic(PIC_CASCADE_IR, PIC_SLAVE_IMR);
 	/* (slave's support for AEOI in flat mode is to be investigated) */
-	outb_p(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR);
+	outb_pic(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR);
 
 	if (auto_eoi)
 		/*
diff --git a/arch/x86/kernel/vmiclock_32.c b/arch/x86/kernel/vmiclock_32.c
index 57f9ef5a324c..a2b030780aa9 100644
--- a/arch/x86/kernel/vmiclock_32.c
+++ b/arch/x86/kernel/vmiclock_32.c
@@ -237,7 +237,7 @@ static void __devinit vmi_time_init_clockevent(void)
 void __init vmi_time_init(void)
 {
 	/* Disable PIT: BIOSes start PIT CH0 with 18.2hz peridic. */
-	outb_p(0x3a, PIT_MODE); /* binary, mode 5, LSB/MSB, ch 0 */
+	outb_pit(0x3a, PIT_MODE); /* binary, mode 5, LSB/MSB, ch 0 */
 
 	vmi_time_init_clockevent();
 	setup_irq(0, &vmi_clock_action);
diff --git a/include/asm-x86/i8253.h b/include/asm-x86/i8253.h
index 747548ec5d1d..b51c0487fc41 100644
--- a/include/asm-x86/i8253.h
+++ b/include/asm-x86/i8253.h
@@ -12,4 +12,7 @@ extern struct clock_event_device *global_clock_event;
 
 extern void setup_pit_timer(void);
 
+#define inb_pit		inb_p
+#define outb_pit	outb_p
+
 #endif	/* __ASM_I8253_H__ */
diff --git a/include/asm-x86/i8259.h b/include/asm-x86/i8259.h
index cabcc6cf3923..67c319e0efc7 100644
--- a/include/asm-x86/i8259.h
+++ b/include/asm-x86/i8259.h
@@ -29,4 +29,7 @@ extern void enable_8259A_irq(unsigned int irq);
 extern void disable_8259A_irq(unsigned int irq);
 extern unsigned int startup_8259A_irq(unsigned int irq);
 
+#define inb_pic		inb_p
+#define outb_pic	outb_p
+
 #endif	/* __ASM_I8259_H__ */
-- 
cgit v1.2.3-59-g8ed1b


From c11b68bc8b1f7c7daaea2220e0a8d9f7d391cb8d Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Wed, 30 Jan 2008 13:33:14 +0100
Subject: x86: serverworks: IRQ routing needs no _p

I can find no reason for the _p on the serverworks IRQ routing logic, and
a review of the documentation contains no indication that any such delay
is needed so lets try this

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/pci/irq.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index ee524ca5f8c0..ed07ce6c171b 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -461,14 +461,14 @@ static int pirq_vlsi_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
  */
 static int pirq_serverworks_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
 {
-	outb_p(pirq, 0xc00);
+	outb(pirq, 0xc00);
 	return inb(0xc01) & 0xf;
 }
 
 static int pirq_serverworks_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
 {
-	outb_p(pirq, 0xc00);
-	outb_p(irq, 0xc01);
+	outb(pirq, 0xc00);
+	outb(irq, 0xc01);
 	return 1;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From c0400030b28e95fd477fdfe8ba8acb0af21e5c15 Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@novell.com>
Date: Wed, 30 Jan 2008 13:33:14 +0100
Subject: x86-64: clean up linker script

Remove the dead .text.lock. Move _etext and __{start,stop}___ex_table
into their sections.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/vmlinux_64.lds.S | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S
index ea5386944e67..7457370d7916 100644
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ b/arch/x86/kernel/vmlinux_64.lds.S
@@ -37,16 +37,15 @@ SECTIONS
 	KPROBES_TEXT
 	*(.fixup)
 	*(.gnu.warning)
-	} :text = 0x9090
-  				/* out-of-line lock text */
-  .text.lock : AT(ADDR(.text.lock) - LOAD_OFFSET) { *(.text.lock) }
-
-  _etext = .;			/* End of text section */
+	_etext = .;			/* End of text section */
+  } :text = 0x9090
 
   . = ALIGN(16);		/* Exception table */
-  __start___ex_table = .;
-  __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { *(__ex_table) }
-  __stop___ex_table = .;
+  __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
+  	__start___ex_table = .;
+	 *(__ex_table)
+  	__stop___ex_table = .;
+  }
 
   NOTES :text :note
 
-- 
cgit v1.2.3-59-g8ed1b


From 4dbf7af6442a9a882855bed0d999659ac413e3ac Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@novell.com>
Date: Wed, 30 Jan 2008 13:33:14 +0100
Subject: x86: adjust/fix LDT handling for Xen

Based on patch from Jan Beulich <jbeulich@novell.com>.

Don't rely on kmalloc(PAGE_SIZE) returning PAGE_SIZE aligned memory
(Xen requires GDT *and* LDT to be page-aligned). Using the page
allocator interface also removes the (albeit small) slab allocator
overhead. The same change being done for 64-bits for consistency.

Further, the Xen hypercall interface expects the LDT address to be
virtual, not machine.

[ Adjusted to unified ldt.c - Jeremy ]

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/ldt.c    | 7 +++----
 arch/x86/xen/enlighten.c | 9 +--------
 2 files changed, 4 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index b8ef46270e24..8a7660c8394a 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -12,7 +12,6 @@
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/vmalloc.h>
-#include <linux/slab.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -40,7 +39,7 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
 	if (mincount * LDT_ENTRY_SIZE > PAGE_SIZE)
 		newldt = vmalloc(mincount * LDT_ENTRY_SIZE);
 	else
-		newldt = kmalloc(mincount * LDT_ENTRY_SIZE, GFP_KERNEL);
+		newldt = (void *)__get_free_page(GFP_KERNEL);
 
 	if (!newldt)
 		return -ENOMEM;
@@ -78,7 +77,7 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
 		if (oldsize * LDT_ENTRY_SIZE > PAGE_SIZE)
 			vfree(oldldt);
 		else
-			kfree(oldldt);
+			put_page(virt_to_page(oldldt));
 	}
 	return 0;
 }
@@ -129,7 +128,7 @@ void destroy_context(struct mm_struct *mm)
 		if (mm->context.size * LDT_ENTRY_SIZE > PAGE_SIZE)
 			vfree(mm->context.ldt);
 		else
-			kfree(mm->context.ldt);
+			put_page(virt_to_page(mm->context.ldt));
 		mm->context.size = 0;
 	}
 }
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 72dd14d0685c..845b4fd94463 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -275,19 +275,12 @@ static unsigned long xen_store_tr(void)
 
 static void xen_set_ldt(const void *addr, unsigned entries)
 {
-	unsigned long linear_addr = (unsigned long)addr;
 	struct mmuext_op *op;
 	struct multicall_space mcs = xen_mc_entry(sizeof(*op));
 
 	op = mcs.args;
 	op->cmd = MMUEXT_SET_LDT;
-	if (linear_addr) {
-		/* ldt my be vmalloced, use arbitrary_virt_to_machine */
-		xmaddr_t maddr;
-		maddr = arbitrary_virt_to_machine((unsigned long)addr);
-		linear_addr = (unsigned long)maddr.maddr;
-	}
-	op->arg1.linear_addr = linear_addr;
+	op->arg1.linear_addr = (unsigned long)addr;
 	op->arg2.nr_ents = entries;
 
 	MULTI_mmuext_op(mcs.mc, op, 1, NULL, DOMID_SELF);
-- 
cgit v1.2.3-59-g8ed1b


From 693e3c560317577a29c625d89f6745d5c7cfd918 Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:14 +0100
Subject: x86: reduce memory and intra-node effects

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic_64.c    | 5 +++--
 arch/x86/kernel/mpparse_64.c | 6 +++---
 arch/x86/mm/numa_64.c        | 2 +-
 arch/x86/mm/srat_64.c        | 8 ++++++--
 include/asm-x86/topology.h   | 2 +-
 5 files changed, 14 insertions(+), 9 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index f9919c492699..85bd3d463cdf 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -1175,14 +1175,15 @@ __cpuinit int apic_is_clustered_box(void)
 {
 	int i, clusters, zeros;
 	unsigned id;
+	u16 *bios_cpu_apicid = x86_bios_cpu_apicid_early_ptr;
 	DECLARE_BITMAP(clustermap, NUM_APIC_CLUSTERS);
 
 	bitmap_zero(clustermap, NUM_APIC_CLUSTERS);
 
 	for (i = 0; i < NR_CPUS; i++) {
 		/* are we being called early in kernel startup? */
-		if (x86_bios_cpu_apicid_early_ptr) {
-			id = ((u16 *)x86_bios_cpu_apicid_early_ptr)[i];
+		if (bios_cpu_apicid) {
+			id = bios_cpu_apicid[i];
 		}
 		else if (i < nr_cpu_ids) {
 			if (cpu_present(i))
diff --git a/arch/x86/kernel/mpparse_64.c b/arch/x86/kernel/mpparse_64.c
index fd671754dcb5..d3260f8f17dc 100644
--- a/arch/x86/kernel/mpparse_64.c
+++ b/arch/x86/kernel/mpparse_64.c
@@ -122,7 +122,7 @@ static void __cpuinit MP_processor_info(struct mpc_config_processor *m)
 	physid_set(m->mpc_apicid, phys_cpu_present_map);
  	if (m->mpc_cpuflag & CPU_BOOTPROCESSOR) {
  		/*
- 		 * x86_bios_cpu_apicid is required to have processors listed
+		 * x86_bios_cpu_apicid is required to have processors listed
  		 * in same order as logical cpu numbers. Hence the first
  		 * entry is BSP, and so on.
  		 */
@@ -130,8 +130,8 @@ static void __cpuinit MP_processor_info(struct mpc_config_processor *m)
  	}
 	/* are we being called early in kernel startup? */
 	if (x86_cpu_to_apicid_early_ptr) {
-		u16 *cpu_to_apicid = (u16 *)x86_cpu_to_apicid_early_ptr;
-		u16 *bios_cpu_apicid = (u16 *)x86_bios_cpu_apicid_early_ptr;
+		u16 *cpu_to_apicid = x86_cpu_to_apicid_early_ptr;
+		u16 *bios_cpu_apicid = x86_bios_cpu_apicid_early_ptr;
 
 		cpu_to_apicid[cpu] = m->mpc_apicid;
 		bios_cpu_apicid[cpu] = m->mpc_apicid;
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 382377d6421d..dca58fb39b08 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -562,7 +562,7 @@ __cpuinit void numa_add_cpu(int cpu)
 
 void __cpuinit numa_set_node(int cpu, int node)
 {
-	u16 *cpu_to_node_map = (u16 *)x86_cpu_to_node_map_early_ptr;
+	u16 *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
 
 	cpu_pda(cpu)->nodenumber = node;
 
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index bccbdc7be434..e5a1ec8342dc 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -346,8 +346,12 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
 	/* First clean up the node list */
 	for (i = 0; i < MAX_NUMNODES; i++) {
 		cutoff_node(i, start, end);
-		/* ZZZ why was this needed. At least add a comment */
-		if (nodes[i].end && (nodes[i].end - nodes[i].start) < NODE_MIN_SIZE) {
+		/*
+		 * don't confuse VM with a node that doesn't have the
+		 * minimum memory.
+		 */
+		if (nodes[i].end &&
+			(nodes[i].end - nodes[i].start) < NODE_MIN_SIZE) {
 			unparse_node(i);
 			node_set_offline(i);
 		}
diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h
index e612ed8d2bc7..a89b46eb2526 100644
--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -40,7 +40,7 @@ extern cpumask_t node_to_cpumask_map[];
 /* Returns the number of the node containing CPU 'cpu' */
 static inline int cpu_to_node(int cpu)
 {
-	u16 *cpu_to_node_map = (u16 *)x86_cpu_to_node_map_early_ptr;
+	u16 *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
 
 	if (cpu_to_node_map)
 		return cpu_to_node_map[cpu];
-- 
cgit v1.2.3-59-g8ed1b


From 118c890961a2ca456947d72ebe0ce43de07907f0 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 30 Jan 2008 13:33:14 +0100
Subject: arch/x86/mm/numa_64.c: section fix

WARNING: vmlinux.o(__ksymtab+0x670): Section mismatch: reference to .init.data:x86_cpu_to_node_map_init (between '__ksymtab_x86_cpu_to_node_map_init' and '__ksymtab_node_data')

Cc: Matthew Dobson <colpatch@us.ibm.com>
Cc: Mike Travis <travis@sgi.com>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/numa_64.c      | 2 +-
 include/asm-x86/topology.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index dca58fb39b08..7b03d2090c28 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -31,7 +31,7 @@ bootmem_data_t plat_node_bdata[MAX_NUMNODES];
 
 struct memnode memnode;
 
-u16 x86_cpu_to_node_map_init[NR_CPUS] __initdata = {
+u16 x86_cpu_to_node_map_init[NR_CPUS] = {
 	[0 ... NR_CPUS-1] = NUMA_NO_NODE
 };
 void *x86_cpu_to_node_map_early_ptr;
diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h
index a89b46eb2526..2da1464ecbef 100644
--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -31,7 +31,7 @@
 
 /* Mappings between logical cpu number and node number */
 DECLARE_PER_CPU(u16, x86_cpu_to_node_map);
-extern u16 __initdata x86_cpu_to_node_map_init[];
+extern u16 x86_cpu_to_node_map_init[];
 extern void *x86_cpu_to_node_map_early_ptr;
 extern cpumask_t node_to_cpumask_map[];
 
-- 
cgit v1.2.3-59-g8ed1b


From 316390b093e9b80f8ab13b3eea82f912e186bbf6 Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:15 +0100
Subject: x86: fixup NR-CPUS patch for numa

This patch removes the EXPORT_SYMBOL for:

	x86_cpu_to_node_map_init
	x86_cpu_to_node_map_early_ptr

... thus fixing the section mismatch problem.

Also, the mem -> node hash lookup is fixed.

Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/numa_64.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 7b03d2090c28..37d429beba96 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -35,8 +35,6 @@ u16 x86_cpu_to_node_map_init[NR_CPUS] = {
 	[0 ... NR_CPUS-1] = NUMA_NO_NODE
 };
 void *x86_cpu_to_node_map_early_ptr;
-EXPORT_SYMBOL(x86_cpu_to_node_map_init);
-EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr);
 DEFINE_PER_CPU(u16, x86_cpu_to_node_map) = NUMA_NO_NODE;
 EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map);
 
@@ -88,7 +86,7 @@ static int __init allocate_cachealigned_memnodemap(void)
 	unsigned long pad, pad_addr;
 
 	memnodemap = memnode.embedded_map;
-	if (memnodemapsize <= 48)
+	if (memnodemapsize <= ARRAY_SIZE(memnode.embedded_map))
 		return 0;
 
 	pad = L1_CACHE_BYTES - 1;
-- 
cgit v1.2.3-59-g8ed1b


From f6e8e28410c017adb273983057023a17a8791ad3 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:16 +0100
Subject: x86: rename stack_pointer to kernel_trap_sp

Choose a less generic name for such a special case.  Add
a comment explaining the odd use in X86_32.

Change the one user of stack_pointer.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/oprofile/backtrace.c | 2 +-
 include/asm-x86/ptrace.h      | 8 +++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index 0ca4815a2938..e2095cba409f 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -77,7 +77,7 @@ void
 x86_backtrace(struct pt_regs * const regs, unsigned int depth)
 {
 	struct frame_head *head = (struct frame_head *)frame_pointer(regs);
-	unsigned long stack = stack_pointer(regs);
+	unsigned long stack = kernel_trap_sp(regs);
 
 	if (!user_mode_vm(regs)) {
 		if (depth)
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index 79d5b8fcd7b1..d9e04b46a440 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -182,7 +182,13 @@ static inline int v8086_mode(struct pt_regs *regs)
 #endif
 }
 
-static inline unsigned long stack_pointer(struct pt_regs *regs)
+/*
+ * X86_32 CPUs don't save ss and esp if the CPU is already in kernel mode
+ * when it traps.  So regs will be the current sp.
+ *
+ * This is valid only for kernel mode traps.
+ */
+static inline unsigned long kernel_trap_sp(struct pt_regs *regs)
 {
 #ifdef CONFIG_X86_32
 	return (unsigned long)regs;
-- 
cgit v1.2.3-59-g8ed1b


From 30d432dfab2bcfd021d352e2058fae6b9405caeb Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:16 +0100
Subject: x86: move MWAIT idle check to generic CPU initialization on 32-bit

Previously it was only run for Intel CPUs, but AMD Fam10h implements MWAIT too.

This matches 64bit behaviour.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/common.c | 2 ++
 arch/x86/kernel/cpu/intel.c  | 1 -
 2 files changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index ed05c7a0ca9b..4bd326d0322c 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -499,6 +499,8 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 
 	/* Init Machine Check Exception if available. */
 	mcheck_init(c);
+
+	select_idle_routine(c);
 }
 
 void __init identify_boot_cpu(void)
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index f1136115279a..d1c372b018db 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -137,7 +137,6 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 	}
 #endif
 
-	select_idle_routine(c);
 	l2 = init_intel_cacheinfo(c);
 	if (c->cpuid_level > 9 ) {
 		unsigned eax = cpuid_eax(10);
-- 
cgit v1.2.3-59-g8ed1b


From 0c07ee38c9d4eb081758f5ad14bbffa7197e1aec Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:16 +0100
Subject: x86: use the correct cpuid method to detect MWAIT support for C
 states

Previously there was a AMD specific quirk to handle the case of
AMD Fam10h MWAIT not supporting any C states. But it turns out
that CPUID already has ways to detectly detect that without
using special quirks.

The new code simply checks if MWAIT supports at least C1 and doesn't
use it if it doesn't. No more vendor specific code.

Note this is does not simply clear MWAIT because MWAIT can be still
useful even without C states.

Credit goes to Ben Serebrin for pointing out the (nearly) obvious.

Cc: "Andreas Herrmann" <andreas.herrmann3@amd.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/amd.c    |  3 ---
 arch/x86/kernel/process_32.c | 10 +++++++++-
 arch/x86/kernel/process_64.c | 11 ++++++++++-
 arch/x86/kernel/setup_64.c   |  4 ----
 4 files changed, 19 insertions(+), 9 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index cd2fe15ff4b5..06fa159232fd 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -300,9 +300,6 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 		local_apic_timer_disabled = 1;
 #endif
 
-	if (c->x86 == 0x10 && !force_mwait)
-		clear_bit(X86_FEATURE_MWAIT, c->x86_capability);
-
 	/* K6s reports MCEs but don't actually have all the MSRs */
 	if (c->x86 < 6)
 		clear_bit(X86_FEATURE_MCE, c->x86_capability);
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 69a69c3f43bb..9f45a51af968 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -285,9 +285,17 @@ static void mwait_idle(void)
 	mwait_idle_with_hints(0, 0);
 }
 
+static int mwait_usable(const struct cpuinfo_x86 *c)
+{
+	if (force_mwait)
+		return 1;
+	/* Any C1 states supported? */
+	return c->cpuid_level >= 5 && ((cpuid_edx(5) >> 4) & 0xf) > 0;
+}
+
 void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
 {
-	if (cpu_has(c, X86_FEATURE_MWAIT)) {
+	if (cpu_has(c, X86_FEATURE_MWAIT) && mwait_usable(c)) {
 		printk("monitor/mwait feature present.\n");
 		/*
 		 * Skip, if setup has overridden idle.
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 4e65ae8a54bf..dbe0a846ec52 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -280,10 +280,19 @@ static void mwait_idle(void)
 	}
 }
 
+
+static int mwait_usable(const struct cpuinfo_x86 *c)
+{
+	if (force_mwait)
+		return 1;
+	/* Any C1 states supported? */
+	return c->cpuid_level >= 5 && ((cpuid_edx(5) >> 4) & 0xf) > 0;
+}
+
 void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
 {
 	static int printed;
-	if (cpu_has(c, X86_FEATURE_MWAIT)) {
+	if (cpu_has(c, X86_FEATURE_MWAIT) && mwait_usable(c)) {
 		/*
 		 * Skip, if setup has overridden idle.
 		 * One CPU supports mwait => All CPUs supports mwait
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 71a420c7fee7..4a3f00b49236 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -761,10 +761,6 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 	/* MFENCE stops RDTSC speculation */
 	set_cpu_cap(c, X86_FEATURE_MFENCE_RDTSC);
 
-	/* Family 10 doesn't support C states in MWAIT so don't use it */
-	if (c->x86 == 0x10 && !force_mwait)
-		clear_cpu_cap(c, X86_FEATURE_MWAIT);
-
 	if (amd_apic_timer_broken())
 		disable_apic_timer = 1;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 27cc2a812eb504f4aadff5baa862da715fb0f886 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:16 +0100
Subject: x86: use shorter addresses in i386 segfault printks

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index eba90198b15a..71c722bb6963 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -512,7 +512,7 @@ bad_area_nosemaphore:
 		    printk_ratelimit()) {
 			printk(
 #ifdef CONFIG_X86_32
-			"%s%s[%d]: segfault at %08lx ip %08lx sp %08lx error %lx\n",
+			"%s%s[%d]: segfault at %lx ip %08lx sp %08lx error %lx\n",
 #else
 			"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx\n",
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From edcd81199dbad5db11ae91b507cec1d46dd94a49 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:16 +0100
Subject: x86: unify printk strings in fault_32|64.c

Adding the address of the faulting library missed removing a
line ending from X86_32.

Also update the shorter printk format for X86_32 in fault_64.c
to make it easier to se the remaining differences.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 2 +-
 arch/x86/mm/fault_64.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 71c722bb6963..13d295506a17 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -512,7 +512,7 @@ bad_area_nosemaphore:
 		    printk_ratelimit()) {
 			printk(
 #ifdef CONFIG_X86_32
-			"%s%s[%d]: segfault at %lx ip %08lx sp %08lx error %lx\n",
+			"%s%s[%d]: segfault at %lx ip %08lx sp %08lx error %lx",
 #else
 			"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx\n",
 #endif
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 75b7b165bdf3..b606bdefbb72 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -550,7 +550,7 @@ bad_area_nosemaphore:
 		    printk_ratelimit()) {
 			printk(
 #ifdef CONFIG_X86_32
-			"%s%s[%d]: segfault at %08lx ip %08lx sp %08lx error %lx\n",
+			"%s%s[%d]: segfault at %lx ip %08lx sp %08lx error %lx",
 #else
 			"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx\n",
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 751752789162fde69474edfa15935d0a77c0bc17 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:17 +0100
Subject: x86: replace hard coded reservations in 64-bit early boot code with
 dynamic table

On x86-64 there are several memory allocations before bootmem. To avoid
them stomping on each other they used to be all hard coded in bad_area().
Replace this with an array that is filled as needed.

This cleans up the code considerably and allows to expand its use.

Cc: peterz@infradead.org
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/e820_64.c  | 95 +++++++++++++++++++++++++---------------------
 arch/x86/kernel/head64.c   | 48 +++++++++++++++++++++++
 arch/x86/kernel/setup_64.c | 67 ++------------------------------
 arch/x86/mm/init_64.c      |  5 ++-
 arch/x86/mm/numa_64.c      |  1 +
 include/asm-x86/e820_64.h  |  4 +-
 include/asm-x86/proto.h    |  2 -
 7 files changed, 110 insertions(+), 112 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index 07cfaae7ab07..f8b7bebb4344 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -47,56 +47,65 @@ unsigned long end_pfn_map;
  */
 static unsigned long __initdata end_user_pfn = MAXMEM>>PAGE_SHIFT;
 
-/* Check for some hardcoded bad areas that early boot is not allowed to touch */
-static inline int bad_addr(unsigned long *addrp, unsigned long size)
-{
-	unsigned long addr = *addrp, last = addr + size;
+/*
+ * Early reserved memory areas.
+ */
+#define MAX_EARLY_RES 20
+
+struct early_res {
+	unsigned long start, end;
+};
+static struct early_res early_res[MAX_EARLY_RES] __initdata = {
+	{ 0, PAGE_SIZE },			/* BIOS data page */
+#ifdef CONFIG_SMP
+	{ SMP_TRAMPOLINE_BASE, SMP_TRAMPOLINE_BASE + 2*PAGE_SIZE },
+#endif
+	{}
+};
 
-	/* various gunk below that needed for SMP startup */
-	if (addr < 0x8000) {
-		*addrp = PAGE_ALIGN(0x8000);
-		return 1;
+void __init reserve_early(unsigned long start, unsigned long end)
+{
+	int i;
+	struct early_res *r;
+	for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
+		r = &early_res[i];
+		if (end > r->start && start < r->end)
+			panic("Duplicated early reservation %lx-%lx\n",
+			      start, end);
 	}
+	if (i >= MAX_EARLY_RES)
+		panic("Too many early reservations");
+	r = &early_res[i];
+	r->start = start;
+	r->end = end;
+}
 
-	/* direct mapping tables of the kernel */
-	if (last >= table_start<<PAGE_SHIFT && addr < table_end<<PAGE_SHIFT) {
-		*addrp = PAGE_ALIGN(table_end << PAGE_SHIFT);
-		return 1;
+void __init early_res_to_bootmem(void)
+{
+	int i;
+	for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
+		struct early_res *r = &early_res[i];
+		reserve_bootmem_generic(r->start, r->end - r->start);
 	}
+}
 
-	/* initrd */
-#ifdef CONFIG_BLK_DEV_INITRD
-	if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
-		unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
-		unsigned long ramdisk_size  = boot_params.hdr.ramdisk_size;
-		unsigned long ramdisk_end   = ramdisk_image+ramdisk_size;
-
-		if (last >= ramdisk_image && addr < ramdisk_end) {
-			*addrp = PAGE_ALIGN(ramdisk_end);
-			return 1;
+/* Check for already reserved areas */
+static inline int bad_addr(unsigned long *addrp, unsigned long size)
+{
+	int i;
+	unsigned long addr = *addrp, last;
+	int changed = 0;
+again:
+	last = addr + size;
+	for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
+		struct early_res *r = &early_res[i];
+		if (last >= r->start && addr < r->end) {
+			*addrp = addr = r->end;
+			changed = 1;
+			goto again;
 		}
 	}
-#endif
-	/* kernel code */
-	if (last >= __pa_symbol(&_text) && addr < __pa_symbol(&_end)) {
-		*addrp = PAGE_ALIGN(__pa_symbol(&_end));
-		return 1;
-	}
-
-	if (last >= ebda_addr && addr < ebda_addr + ebda_size) {
-		*addrp = PAGE_ALIGN(ebda_addr + ebda_size);
-		return 1;
-	}
-
-#ifdef CONFIG_NUMA
-	/* NUMA memory to node map */
-	if (last >= nodemap_addr && addr < nodemap_addr + nodemap_size) {
-		*addrp = nodemap_addr + nodemap_size;
-		return 1;
-	}
-#endif
-	/* XXX ramdisk image here? */
-	return 0;
+	return changed;
 }
 
 /*
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 87e031d4abf1..58438bafedca 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -21,6 +21,7 @@
 #include <asm/tlbflush.h>
 #include <asm/sections.h>
 #include <asm/kdebug.h>
+#include <asm/e820.h>
 
 static void __init zap_identity_mappings(void)
 {
@@ -48,6 +49,35 @@ static void __init copy_bootdata(char *real_mode_data)
 	}
 }
 
+#define EBDA_ADDR_POINTER 0x40E
+
+static __init void reserve_ebda(void)
+{
+	unsigned ebda_addr, ebda_size;
+
+	/*
+	 * there is a real-mode segmented pointer pointing to the
+	 * 4K EBDA area at 0x40E
+	 */
+	ebda_addr = *(unsigned short *)__va(EBDA_ADDR_POINTER);
+	ebda_addr <<= 4;
+
+	if (!ebda_addr)
+		return;
+
+	ebda_size = *(unsigned short *)__va(ebda_addr);
+
+	/* Round EBDA up to pages */
+	if (ebda_size == 0)
+		ebda_size = 1;
+	ebda_size <<= 10;
+	ebda_size = round_up(ebda_size + (ebda_addr & ~PAGE_MASK), PAGE_SIZE);
+	if (ebda_size > 64*1024)
+		ebda_size = 64*1024;
+
+	reserve_early(ebda_addr, ebda_addr + ebda_size);
+}
+
 void __init x86_64_start_kernel(char * real_mode_data)
 {
 	int i;
@@ -75,5 +105,23 @@ void __init x86_64_start_kernel(char * real_mode_data)
 	pda_init(0);
 	copy_bootdata(__va(real_mode_data));
 
+	reserve_early(__pa_symbol(&_text), __pa_symbol(&_end));
+
+	/* Reserve INITRD */
+	if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
+		unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
+		unsigned long ramdisk_size  = boot_params.hdr.ramdisk_size;
+		unsigned long ramdisk_end   = ramdisk_image + ramdisk_size;
+		reserve_early(ramdisk_image, ramdisk_end);
+	}
+
+	reserve_ebda();
+
+	/*
+	 * At this point everything still needed from the boot loader
+	 * or BIOS or kernel text should be early reserved or marked not
+	 * RAM in e820. All other memory is free game.
+	 */
+
 	start_kernel();
 }
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 4a3f00b49236..6cbd15625dce 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -245,41 +245,6 @@ static inline void __init reserve_crashkernel(void)
 {}
 #endif
 
-#define EBDA_ADDR_POINTER 0x40E
-
-unsigned __initdata ebda_addr;
-unsigned __initdata ebda_size;
-
-static void __init discover_ebda(void)
-{
-	/*
-	 * there is a real-mode segmented pointer pointing to the
-	 * 4K EBDA area at 0x40E
-	 */
-	ebda_addr = *(unsigned short *)__va(EBDA_ADDR_POINTER);
-	/*
-	 * There can be some situations, like paravirtualized guests,
-	 * in which there is no available ebda information. In such
-	 * case, just skip it
-	 */
-	if (!ebda_addr) {
-		ebda_size = 0;
-		return;
-	}
-
-	ebda_addr <<= 4;
-
-	ebda_size = *(unsigned short *)__va(ebda_addr);
-
-	/* Round EBDA up to pages */
-	if (ebda_size == 0)
-		ebda_size = 1;
-	ebda_size <<= 10;
-	ebda_size = round_up(ebda_size + (ebda_addr & ~PAGE_MASK), PAGE_SIZE);
-	if (ebda_size > 64*1024)
-		ebda_size = 64*1024;
-}
-
 /* Overridden in paravirt.c if CONFIG_PARAVIRT */
 void __attribute__((weak)) __init memory_setup(void)
 {
@@ -349,8 +314,6 @@ void __init setup_arch(char **cmdline_p)
 
 	check_efer();
 
-	discover_ebda();
-
 	init_memory_mapping(0, (end_pfn_map << PAGE_SHIFT));
 	if (efi_enabled)
 		efi_init();
@@ -397,33 +360,7 @@ void __init setup_arch(char **cmdline_p)
 	contig_initmem_init(0, end_pfn);
 #endif
 
-	/* Reserve direct mapping */
-	reserve_bootmem_generic(table_start << PAGE_SHIFT,
-				(table_end - table_start) << PAGE_SHIFT);
-
-	/* reserve kernel */
-	reserve_bootmem_generic(__pa_symbol(&_text),
-				__pa_symbol(&_end) - __pa_symbol(&_text));
-
-	/*
-	 * reserve physical page 0 - it's a special BIOS page on many boxes,
-	 * enabling clean reboots, SMP operation, laptop functions.
-	 */
-	reserve_bootmem_generic(0, PAGE_SIZE);
-
-	/* reserve ebda region */
-	if (ebda_addr)
-		reserve_bootmem_generic(ebda_addr, ebda_size);
-#ifdef CONFIG_NUMA
-	/* reserve nodemap region */
-	if (nodemap_addr)
-		reserve_bootmem_generic(nodemap_addr, nodemap_size);
-#endif
-
-#ifdef CONFIG_SMP
-	/* Reserve SMP trampoline */
-	reserve_bootmem_generic(SMP_TRAMPOLINE_BASE, 2*PAGE_SIZE);
-#endif
+	early_res_to_bootmem();
 
 #ifdef CONFIG_ACPI_SLEEP
 	/*
@@ -453,6 +390,8 @@ void __init setup_arch(char **cmdline_p)
 			initrd_start = ramdisk_image + PAGE_OFFSET;
 			initrd_end = initrd_start+ramdisk_size;
 		} else {
+			/* Assumes everything on node 0 */
+			free_bootmem(ramdisk_image, ramdisk_size);
 			printk(KERN_ERR "initrd extends beyond end of memory "
 			       "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
 			       ramdisk_end, end_of_mem);
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 05f12c527b02..8198840c3dcb 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -176,7 +176,8 @@ __set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t prot)
 	set_pte_phys(address, phys, prot);
 }
 
-unsigned long __meminitdata table_start, table_end;
+static unsigned long __initdata table_start;
+static unsigned long __meminitdata table_end;
 
 static __meminit void *alloc_low_page(unsigned long *phys)
 { 
@@ -387,6 +388,8 @@ void __init_refok init_memory_mapping(unsigned long start, unsigned long end)
 	if (!after_bootmem)
 		mmu_cr4_features = read_cr4();
 	__flush_tlb_all();
+
+	reserve_early(table_start << PAGE_SHIFT, table_end << PAGE_SHIFT);
 }
 
 #ifndef CONFIG_NUMA
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 37d429beba96..5d24dc1ec237 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -102,6 +102,7 @@ static int __init allocate_cachealigned_memnodemap(void)
 	}
 	pad_addr = (nodemap_addr + pad) & ~pad;
 	memnodemap = phys_to_virt(pad_addr);
+	reserve_early(nodemap_addr, nodemap_addr + nodemap_size);
 
 	printk(KERN_DEBUG "NUMA: Allocated memnodemap from %lx - %lx\n",
 	       nodemap_addr, nodemap_addr + nodemap_size);
diff --git a/include/asm-x86/e820_64.h b/include/asm-x86/e820_64.h
index ff36f434f00b..51e4170f9ca5 100644
--- a/include/asm-x86/e820_64.h
+++ b/include/asm-x86/e820_64.h
@@ -41,8 +41,8 @@ extern void finish_e820_parsing(void);
 extern struct e820map e820;
 extern void update_e820(void);
 
-extern unsigned ebda_addr, ebda_size;
-extern unsigned long nodemap_addr, nodemap_size;
+extern void reserve_early(unsigned long start, unsigned long end);
+extern void early_res_to_bootmem(void);
 
 #endif/*!__ASSEMBLY__*/
 
diff --git a/include/asm-x86/proto.h b/include/asm-x86/proto.h
index 3c6fb89f1120..68563c0709ac 100644
--- a/include/asm-x86/proto.h
+++ b/include/asm-x86/proto.h
@@ -22,8 +22,6 @@ extern void syscall32_cpu_init(void);
 
 extern void check_efer(void);
 
-extern unsigned long table_start, table_end;
-
 extern int reboot_force;
 
 long do_arch_prctl(struct task_struct *task, int code, unsigned long addr);
-- 
cgit v1.2.3-59-g8ed1b


From ca74a6f84e68b44867022f4a4f3ec17c087c864e Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:17 +0100
Subject: x86: optimize lock prefix switching to run less frequently

On VMs implemented using JITs that cache translated code changing the lock
prefixes is a quite costly operation that forces the JIT to throw away and
retranslate a lot of code.

Previously a SMP kernel would rewrite the locks once for each CPU which
is quite unnecessary. This patch changes the code to never switch at boot in
 the normal case (SMP kernel booting with >1 CPU) or only once for SMP kernel
on UP.

This makes a significant difference in boot up performance on AMD SimNow!
Also I expect it to be a little faster on native systems too because a smp
switch does a lot of text_poke()s which each synchronize the pipeline.

v1->v2: Rename max_cpus
v1->v2: Fix off by one in UP check (Thomas Gleixner)

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/alternative.c | 16 ++++++++++++++--
 include/linux/smp.h           |  2 ++
 init/main.c                   | 16 ++++++++--------
 3 files changed, 24 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index cdc43242da92..318a4f9b7ece 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -273,6 +273,7 @@ struct smp_alt_module {
 };
 static LIST_HEAD(smp_alt_modules);
 static DEFINE_SPINLOCK(smp_alt);
+static int smp_mode = 1;	/* protected by smp_alt */
 
 void alternatives_smp_module_add(struct module *mod, char *name,
 				 void *locks, void *locks_end,
@@ -354,7 +355,14 @@ void alternatives_smp_switch(int smp)
 	BUG_ON(!smp && (num_online_cpus() > 1));
 
 	spin_lock_irqsave(&smp_alt, flags);
-	if (smp) {
+
+	/*
+	 * Avoid unnecessary switches because it forces JIT based VMs to
+	 * throw away all cached translations, which can be quite costly.
+	 */
+	if (smp == smp_mode) {
+		/* nothing */
+	} else if (smp) {
 		printk(KERN_INFO "SMP alternatives: switching to SMP code\n");
 		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
 		clear_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
@@ -369,6 +377,7 @@ void alternatives_smp_switch(int smp)
 			alternatives_smp_unlock(mod->locks, mod->locks_end,
 						mod->text, mod->text_end);
 	}
+	smp_mode = smp;
 	spin_unlock_irqrestore(&smp_alt, flags);
 }
 
@@ -441,7 +450,10 @@ void __init alternative_instructions(void)
 		alternatives_smp_module_add(NULL, "core kernel",
 					    __smp_locks, __smp_locks_end,
 					    _text, _etext);
-		alternatives_smp_switch(0);
+
+		/* Only switch to UP mode if we don't immediately boot others */
+		if (num_possible_cpus() == 1 || setup_max_cpus <= 1)
+			alternatives_smp_switch(0);
 	}
 #endif
  	apply_paravirt(__parainstructions, __parainstructions_end);
diff --git a/include/linux/smp.h b/include/linux/smp.h
index c25e66bcecf3..55232ccf9cfd 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -78,6 +78,8 @@ int on_each_cpu(void (*func) (void *info), void *info, int retry, int wait);
  */
 void smp_prepare_boot_cpu(void);
 
+extern unsigned int setup_max_cpus;
+
 #else /* !SMP */
 
 /*
diff --git a/init/main.c b/init/main.c
index 3f8aba291ed3..5843fe996703 100644
--- a/init/main.c
+++ b/init/main.c
@@ -128,7 +128,7 @@ static char *ramdisk_execute_command;
 
 #ifdef CONFIG_SMP
 /* Setup configured maximum number of CPUs to activate */
-static unsigned int __initdata max_cpus = NR_CPUS;
+unsigned int __initdata setup_max_cpus = NR_CPUS;
 
 /*
  * Setup routine for controlling SMP activation
@@ -146,7 +146,7 @@ static inline void disable_ioapic_setup(void) {};
 
 static int __init nosmp(char *str)
 {
-	max_cpus = 0;
+	setup_max_cpus = 0;
 	disable_ioapic_setup();
 	return 0;
 }
@@ -155,8 +155,8 @@ early_param("nosmp", nosmp);
 
 static int __init maxcpus(char *str)
 {
-	get_option(&str, &max_cpus);
-	if (max_cpus == 0)
+	get_option(&str, &setup_max_cpus);
+	if (setup_max_cpus == 0)
 		disable_ioapic_setup();
 
 	return 0;
@@ -164,7 +164,7 @@ static int __init maxcpus(char *str)
 
 early_param("maxcpus", maxcpus);
 #else
-#define max_cpus NR_CPUS
+#define setup_max_cpus NR_CPUS
 #endif
 
 /*
@@ -393,7 +393,7 @@ static void __init smp_init(void)
 
 	/* FIXME: This should be done in userspace --RR */
 	for_each_present_cpu(cpu) {
-		if (num_online_cpus() >= max_cpus)
+		if (num_online_cpus() >= setup_max_cpus)
 			break;
 		if (!cpu_online(cpu))
 			cpu_up(cpu);
@@ -401,7 +401,7 @@ static void __init smp_init(void)
 
 	/* Any cleanup work */
 	printk(KERN_INFO "Brought up %ld CPUs\n", (long)num_online_cpus());
-	smp_cpus_done(max_cpus);
+	smp_cpus_done(setup_max_cpus);
 }
 
 #endif
@@ -824,7 +824,7 @@ static int __init kernel_init(void * unused)
 	__set_special_pids(1, 1);
 	cad_pid = task_pid(current);
 
-	smp_prepare_cpus(max_cpus);
+	smp_prepare_cpus(setup_max_cpus);
 
 	do_pre_smp_initcalls();
 
-- 
cgit v1.2.3-59-g8ed1b


From d3432896dae72ee97deb850ad7bbc30329d32c0d Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:17 +0100
Subject: x86: don't disable the APIC if it hasn't been mapped yet

When the kernel panics early for some unrelated reason
there would be eventually an early exception inside panic because
clear_local_APIC tried to disable the not yet mapped APIC.
Check for that explicitely.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic_32.c | 11 ++++++++---
 arch/x86/kernel/apic_64.c |  9 +++++++--
 2 files changed, 15 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index d07a603807d1..35a568ea8400 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -99,6 +99,8 @@ static DEFINE_PER_CPU(struct clock_event_device, lapic_events);
 /* Local APIC was disabled by the BIOS and enabled by the kernel */
 static int enabled_via_apicbase;
 
+static unsigned long apic_phys;
+
 /*
  * Get the LAPIC version
  */
@@ -631,9 +633,14 @@ int setup_profiling_timer(unsigned int multiplier)
  */
 void clear_local_APIC(void)
 {
-	int maxlvt = lapic_get_maxlvt();
+	int maxlvt;
 	u32 v;
 
+	/* APIC hasn't been mapped yet */
+	if (!apic_phys)
+		return;
+
+	maxlvt = lapic_get_maxlvt();
 	/*
 	 * Masking an LVT entry can trigger a local APIC error
 	 * if the vector is zero. Mask LVTERR first to prevent this.
@@ -1120,8 +1127,6 @@ no_apic:
  */
 void __init init_apic_mappings(void)
 {
-	unsigned long apic_phys;
-
 	/*
 	 * If no local APIC can be found then set up a fake all
 	 * zeroes page to simulate the local APIC and another
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 85bd3d463cdf..a7a38c9da136 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -81,6 +81,8 @@ static struct clock_event_device lapic_clockevent = {
 };
 static DEFINE_PER_CPU(struct clock_event_device, lapic_events);
 
+static unsigned long apic_phys;
+
 /*
  * Get the LAPIC version
  */
@@ -525,6 +527,11 @@ void clear_local_APIC(void)
 	int maxlvt = lapic_get_maxlvt();
 	u32 v;
 
+	/* APIC hasn't been mapped yet */
+	if (!apic_phys)
+		return;
+
+	maxlvt = lapic_get_maxlvt();
 	/*
 	 * Masking an LVT entry can trigger a local APIC error
 	 * if the vector is zero. Mask LVTERR first to prevent this.
@@ -859,8 +866,6 @@ static int __init detect_init_APIC(void)
  */
 void __init init_apic_mappings(void)
 {
-	unsigned long apic_phys;
-
 	/*
 	 * If no local APIC can be found then set up a fake all
 	 * zeroes page to simulate the local APIC and another
-- 
cgit v1.2.3-59-g8ed1b


From 03252919b79891063cf99145612360efbdf9500b Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:18 +0100
Subject: x86: print which shared library/executable faulted in segfault etc.
 messages v3

They now look like:

hal-resmgr[13791]: segfault at 3c rip 2b9c8caec182 rsp 7fff1e825d30 error 4 in libacl.so.1.1.0[2b9c8caea000+6000]

This makes it easier to pinpoint bugs to specific libraries.

And printing the offset into a mapping also always allows to find the
correct fault point in a library even with randomized mappings. Previously
there was no way to actually find the correct code address inside
the randomized mapping.

Relies on earlier patch to shorten the printk formats.

They are often now longer than 80 characters, but I think that's worth it.

[includes fix from Eric Dumazet to check d_path error value]

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/signal_32.c |  7 +++++--
 arch/x86/kernel/signal_64.c |  7 +++++--
 arch/x86/kernel/traps_32.c  |  7 +++++--
 arch/x86/kernel/traps_64.c  | 14 ++++++++++----
 arch/x86/mm/fault_32.c      |  4 +++-
 arch/x86/mm/fault_64.c      |  4 +++-
 include/linux/mm.h          |  1 +
 mm/memory.c                 | 31 +++++++++++++++++++++++++++++++
 8 files changed, 63 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 74df55895c8c..89a690edf999 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -198,12 +198,15 @@ asmlinkage int sys_sigreturn(unsigned long __unused)
 	return ax;
 
 badframe:
-	if (show_unhandled_signals && printk_ratelimit())
+	if (show_unhandled_signals && printk_ratelimit()) {
 		printk("%s%s[%d] bad frame in sigreturn frame:%p ip:%lx"
-		       " sp:%lx oeax:%lx\n",
+		       " sp:%lx oeax:%lx",
 		    task_pid_nr(current) > 1 ? KERN_INFO : KERN_EMERG,
 		    current->comm, task_pid_nr(current), frame, regs->ip,
 		    regs->sp, regs->orig_ax);
+		print_vma_addr(" in ", regs->ip);
+		printk("\n");
+	}
 
 	force_sig(SIGSEGV, current);
 	return 0;
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index 4eb751c60390..7347bb14e306 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -484,9 +484,12 @@ do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where)
 { 
 	struct task_struct *me = current; 
-	if (show_unhandled_signals && printk_ratelimit())
-		printk("%s[%d] bad frame in %s frame:%p ip:%lx sp:%lx orax:%lx\n",
+	if (show_unhandled_signals && printk_ratelimit()) {
+		printk("%s[%d] bad frame in %s frame:%p ip:%lx sp:%lx orax:%lx",
 	       me->comm,me->pid,where,frame,regs->ip,regs->sp,regs->orig_ax);
+		print_vma_addr(" in ", regs->ip);
+		printk("\n");
+	}
 
 	force_sig(SIGSEGV, me); 
 } 
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 6f3bb287c702..270cfd483160 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -609,11 +609,14 @@ void __kprobes do_general_protection(struct pt_regs * regs,
 	current->thread.error_code = error_code;
 	current->thread.trap_no = 13;
 	if (show_unhandled_signals && unhandled_signal(current, SIGSEGV) &&
-	    printk_ratelimit())
+	    printk_ratelimit()) {
 		printk(KERN_INFO
-		    "%s[%d] general protection ip:%lx sp:%lx error:%lx\n",
+		    "%s[%d] general protection ip:%lx sp:%lx error:%lx",
 		    current->comm, task_pid_nr(current),
 		    regs->ip, regs->sp, error_code);
+		print_vma_addr(" in ", regs->ip);
+		printk("\n");
+	}
 
 	force_sig(SIGSEGV, current);
 	return;
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 814801f4eb9e..911ed28afff8 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -642,11 +642,14 @@ static void __kprobes do_trap(int trapnr, int signr, char *str,
 		tsk->thread.trap_no = trapnr;
 
 		if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
-		    printk_ratelimit())
+		    printk_ratelimit()) {
 			printk(KERN_INFO
-			       "%s[%d] trap %s ip:%lx sp:%lx error:%lx\n",
+			       "%s[%d] trap %s ip:%lx sp:%lx error:%lx",
 			       tsk->comm, tsk->pid, str,
 			       regs->ip, regs->sp, error_code);
+			print_vma_addr(" in ", regs->ip);
+			printk("\n");
+		}
 
 		if (info)
 			force_sig_info(signr, info, tsk);
@@ -741,11 +744,14 @@ asmlinkage void __kprobes do_general_protection(struct pt_regs * regs,
 		tsk->thread.trap_no = 13;
 
 		if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
-		    printk_ratelimit())
+		    printk_ratelimit()) {
 			printk(KERN_INFO
-		       "%s[%d] general protection ip:%lx sp:%lx error:%lx\n",
+		       "%s[%d] general protection ip:%lx sp:%lx error:%lx",
 			       tsk->comm, tsk->pid,
 			       regs->ip, regs->sp, error_code);
+			print_vma_addr(" in ", regs->ip);
+			printk("\n");
+		}
 
 		force_sig(SIGSEGV, tsk);
 		return;
diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 13d295506a17..276863dc4bdd 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -514,11 +514,13 @@ bad_area_nosemaphore:
 #ifdef CONFIG_X86_32
 			"%s%s[%d]: segfault at %lx ip %08lx sp %08lx error %lx",
 #else
-			"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx\n",
+			"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx",
 #endif
 			task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
 			tsk->comm, task_pid_nr(tsk), address, regs->ip,
 			regs->sp, error_code);
+			print_vma_addr(" in ", regs->ip);
+			printk("\n");
 		}
 		tsk->thread.cr2 = address;
 		/* Kernel addresses are always protection faults */
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index b606bdefbb72..9ef0306efe9e 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -552,11 +552,13 @@ bad_area_nosemaphore:
 #ifdef CONFIG_X86_32
 			"%s%s[%d]: segfault at %lx ip %08lx sp %08lx error %lx",
 #else
-			"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx\n",
+			"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx",
 #endif
 			task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
 			tsk->comm, task_pid_nr(tsk), address, regs->ip,
 			regs->sp, error_code);
+			print_vma_addr(" in ", regs->ip);
+			printk("\n");
 		}
 
 		tsk->thread.cr2 = address;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1897ca223eca..3c22d971afa7 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1146,6 +1146,7 @@ extern int randomize_va_space;
 #endif
 
 const char * arch_vma_name(struct vm_area_struct *vma);
+void print_vma_addr(char *prefix, unsigned long rip);
 
 struct page *sparse_mem_map_populate(unsigned long pnum, int nid);
 pgd_t *vmemmap_pgd_populate(unsigned long addr, int node);
diff --git a/mm/memory.c b/mm/memory.c
index 673ebbf499c7..d902d0e25edc 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2754,3 +2754,34 @@ int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, in
 
 	return buf - old_buf;
 }
+
+/*
+ * Print the name of a VMA.
+ */
+void print_vma_addr(char *prefix, unsigned long ip)
+{
+	struct mm_struct *mm = current->mm;
+	struct vm_area_struct *vma;
+
+	down_read(&mm->mmap_sem);
+	vma = find_vma(mm, ip);
+	if (vma && vma->vm_file) {
+		struct file *f = vma->vm_file;
+		char *buf = (char *)__get_free_page(GFP_KERNEL);
+		if (buf) {
+			char *p, *s;
+
+			p = d_path(f->f_dentry, f->f_vfsmnt, buf, PAGE_SIZE);
+			if (IS_ERR(p))
+				p = "?";
+			s = strrchr(p, '/');
+			if (s)
+				p = s+1;
+			printk("%s%s[%lx+%lx]", prefix, p,
+					vma->vm_start,
+					vma->vm_end - vma->vm_start);
+			free_page((unsigned long)buf);
+		}
+	}
+	up_read(&current->mm->mmap_sem);
+}
-- 
cgit v1.2.3-59-g8ed1b


From 99fc8d424bc5d803fe92cad56c068fe64e73747a Mon Sep 17 00:00:00 2001
From: Jesse Barnes <jesse.barnes@intel.com>
Date: Wed, 30 Jan 2008 13:33:18 +0100
Subject: x86, 32-bit: trim memory not covered by wb mtrrs

On some machines, buggy BIOSes don't properly setup WB MTRRs to cover all
available RAM, meaning the last few megs (or even gigs) of memory will be
marked uncached.  Since Linux tends to allocate from high memory addresses
first, this causes the machine to be unusably slow as soon as the kernel
starts really using memory (i.e.  right around init time).

This patch works around the problem by scanning the MTRRs at boot and
figuring out whether the current end_pfn value (setup by early e820 code)
goes beyond the highest WB MTRR range, and if so, trimming it to match.  A
fairly obnoxious KERN_WARNING is printed too, letting the user know that
not all of their memory is available due to a likely BIOS bug.

Something similar could be done on i386 if needed, but the boot ordering
would be slightly different, since the MTRR code on i386 depends on the
boot_cpu_data structure being setup.

This patch fixes a bug in the last patch that caused the code to run on
non-Intel machines (AMD machines apparently don't need it and it's untested
on other non-Intel machines, so best keep it off).

Further enhancements and fixes from:

  Yinghai Lu <Yinghai.Lu@Sun.COM>
  Andi Kleen <ak@suse.de>

Signed-off-by: Jesse Barnes <jesse.barnes@intel.com>
Tested-by: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/kernel-parameters.txt |   6 ++
 arch/x86/kernel/bugs_64.c           |   1 -
 arch/x86/kernel/cpu/mtrr/generic.c  |   8 +--
 arch/x86/kernel/cpu/mtrr/if.c       |   8 +--
 arch/x86/kernel/cpu/mtrr/main.c     | 140 +++++++++++++++++++++++++++++-------
 arch/x86/kernel/cpu/mtrr/mtrr.h     |   3 +
 arch/x86/kernel/setup_64.c          |   7 ++
 include/asm-x86/mtrr.h              |   6 +-
 8 files changed, 140 insertions(+), 39 deletions(-)

(limited to 'arch')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 860a90875491..b8fadf5f75a3 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -570,6 +570,12 @@ and is between 256 and 4096 characters. It is defined in the file
 			See drivers/char/README.epca and
 			Documentation/digiepca.txt.
 
+	disable_mtrr_trim [X86-64, Intel only]
+			By default the kernel will trim any uncacheable
+			memory out of your available memory pool based on
+			MTRR settings.  This parameter disables that behavior,
+			possibly causing your machine to run very slowly.
+
 	dmasound=	[HW,OSS] Sound subsystem buffers
 
 	dscc4.setup=	[NET]
diff --git a/arch/x86/kernel/bugs_64.c b/arch/x86/kernel/bugs_64.c
index 9a189cef6404..8f520f93ffd4 100644
--- a/arch/x86/kernel/bugs_64.c
+++ b/arch/x86/kernel/bugs_64.c
@@ -13,7 +13,6 @@
 void __init check_bugs(void)
 {
 	identify_cpu(&boot_cpu_data);
-	mtrr_bp_init();
 #if !defined(CONFIG_SMP)
 	printk("CPU: ");
 	print_cpu_info(&boot_cpu_data);
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 55d31ff118fb..103d61a59b19 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -14,7 +14,7 @@
 #include "mtrr.h"
 
 struct mtrr_state {
-	struct mtrr_var_range *var_ranges;
+	struct mtrr_var_range var_ranges[MAX_VAR_RANGES];
 	mtrr_type fixed_ranges[NUM_FIXED_RANGES];
 	unsigned char enabled;
 	unsigned char have_fixed;
@@ -86,12 +86,6 @@ void __init get_mtrr_state(void)
 	struct mtrr_var_range *vrs;
 	unsigned lo, dummy;
 
-	if (!mtrr_state.var_ranges) {
-		mtrr_state.var_ranges = kmalloc(num_var_ranges * sizeof (struct mtrr_var_range), 
-						GFP_KERNEL);
-		if (!mtrr_state.var_ranges)
-			return;
-	} 
 	vrs = mtrr_state.var_ranges;
 
 	rdmsr(MTRRcap_MSR, lo, dummy);
diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c
index 14535686c099..91e150acb46c 100644
--- a/arch/x86/kernel/cpu/mtrr/if.c
+++ b/arch/x86/kernel/cpu/mtrr/if.c
@@ -11,10 +11,6 @@
 #include <asm/mtrr.h>
 #include "mtrr.h"
 
-/* RED-PEN: this is accessed without any locking */
-extern unsigned int *usage_table;
-
-
 #define FILE_FCOUNT(f) (((struct seq_file *)((f)->private_data))->private)
 
 static const char *const mtrr_strings[MTRR_NUM_TYPES] =
@@ -397,7 +393,7 @@ static int mtrr_seq_show(struct seq_file *seq, void *offset)
 	for (i = 0; i < max; i++) {
 		mtrr_if->get(i, &base, &size, &type);
 		if (size == 0)
-			usage_table[i] = 0;
+			mtrr_usage_table[i] = 0;
 		else {
 			if (size < (0x100000 >> PAGE_SHIFT)) {
 				/* less than 1MB */
@@ -411,7 +407,7 @@ static int mtrr_seq_show(struct seq_file *seq, void *offset)
 			len += seq_printf(seq, 
 				   "reg%02i: base=0x%05lx000 (%4luMB), size=%4lu%cB: %s, count=%d\n",
 			     i, base, base >> (20 - PAGE_SHIFT), size, factor,
-			     mtrr_attrib_to_str(type), usage_table[i]);
+			     mtrr_attrib_to_str(type), mtrr_usage_table[i]);
 		}
 	}
 	return 0;
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 60af5ed2b5c0..ccd36ed2187b 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -38,8 +38,8 @@
 #include <linux/cpu.h>
 #include <linux/mutex.h>
 
+#include <asm/e820.h>
 #include <asm/mtrr.h>
-
 #include <asm/uaccess.h>
 #include <asm/processor.h>
 #include <asm/msr.h>
@@ -47,7 +47,7 @@
 
 u32 num_var_ranges = 0;
 
-unsigned int *usage_table;
+unsigned int mtrr_usage_table[MAX_VAR_RANGES];
 static DEFINE_MUTEX(mtrr_mutex);
 
 u64 size_or_mask, size_and_mask;
@@ -121,13 +121,8 @@ static void __init init_table(void)
 	int i, max;
 
 	max = num_var_ranges;
-	if ((usage_table = kmalloc(max * sizeof *usage_table, GFP_KERNEL))
-	    == NULL) {
-		printk(KERN_ERR "mtrr: could not allocate\n");
-		return;
-	}
 	for (i = 0; i < max; i++)
-		usage_table[i] = 1;
+		mtrr_usage_table[i] = 1;
 }
 
 struct set_mtrr_data {
@@ -383,7 +378,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
 			goto out;
 		}
 		if (increment)
-			++usage_table[i];
+			++mtrr_usage_table[i];
 		error = i;
 		goto out;
 	}
@@ -391,15 +386,15 @@ int mtrr_add_page(unsigned long base, unsigned long size,
 	i = mtrr_if->get_free_region(base, size, replace);
 	if (i >= 0) {
 		set_mtrr(i, base, size, type);
-		if (likely(replace < 0))
-			usage_table[i] = 1;
-		else {
-			usage_table[i] = usage_table[replace];
+		if (likely(replace < 0)) {
+			mtrr_usage_table[i] = 1;
+		} else {
+			mtrr_usage_table[i] = mtrr_usage_table[replace];
 			if (increment)
-				usage_table[i]++;
+				mtrr_usage_table[i]++;
 			if (unlikely(replace != i)) {
 				set_mtrr(replace, 0, 0, 0);
-				usage_table[replace] = 0;
+				mtrr_usage_table[replace] = 0;
 			}
 		}
 	} else
@@ -529,11 +524,11 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
 		printk(KERN_WARNING "mtrr: MTRR %d not used\n", reg);
 		goto out;
 	}
-	if (usage_table[reg] < 1) {
+	if (mtrr_usage_table[reg] < 1) {
 		printk(KERN_WARNING "mtrr: reg: %d has count=0\n", reg);
 		goto out;
 	}
-	if (--usage_table[reg] < 1)
+	if (--mtrr_usage_table[reg] < 1)
 		set_mtrr(reg, 0, 0, 0);
 	error = reg;
  out:
@@ -593,16 +588,11 @@ struct mtrr_value {
 	unsigned long	lsize;
 };
 
-static struct mtrr_value * mtrr_state;
+static struct mtrr_value mtrr_state[MAX_VAR_RANGES];
 
 static int mtrr_save(struct sys_device * sysdev, pm_message_t state)
 {
 	int i;
-	int size = num_var_ranges * sizeof(struct mtrr_value);
-
-	mtrr_state = kzalloc(size,GFP_ATOMIC);
-	if (!mtrr_state)
-		return -ENOMEM;
 
 	for (i = 0; i < num_var_ranges; i++) {
 		mtrr_if->get(i,
@@ -624,7 +614,6 @@ static int mtrr_restore(struct sys_device * sysdev)
 				 mtrr_state[i].lsize,
 				 mtrr_state[i].ltype);
 	}
-	kfree(mtrr_state);
 	return 0;
 }
 
@@ -635,6 +624,109 @@ static struct sysdev_driver mtrr_sysdev_driver = {
 	.resume		= mtrr_restore,
 };
 
+#ifdef CONFIG_X86_64
+static int disable_mtrr_trim;
+
+static int __init disable_mtrr_trim_setup(char *str)
+{
+	disable_mtrr_trim = 1;
+	return 0;
+}
+early_param("disable_mtrr_trim", disable_mtrr_trim_setup);
+
+/*
+ * Newer AMD K8s and later CPUs have a special magic MSR way to force WB
+ * for memory >4GB. Check for that here.
+ * Note this won't check if the MTRRs < 4GB where the magic bit doesn't
+ * apply to are wrong, but so far we don't know of any such case in the wild.
+ */
+#define Tom2Enabled (1U << 21)
+#define Tom2ForceMemTypeWB (1U << 22)
+
+static __init int amd_special_default_mtrr(unsigned long end_pfn)
+{
+	u32 l, h;
+
+	/* Doesn't apply to memory < 4GB */
+	if (end_pfn <= (0xffffffff >> PAGE_SHIFT))
+		return 0;
+	if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD)
+		return 0;
+	if (boot_cpu_data.x86 < 0xf || boot_cpu_data.x86 > 0x11)
+		return 0;
+	/* In case some hypervisor doesn't pass SYSCFG through */
+	if (rdmsr_safe(MSR_K8_SYSCFG, &l, &h) < 0)
+		return 0;
+	/*
+	 * Memory between 4GB and top of mem is forced WB by this magic bit.
+	 * Reserved before K8RevF, but should be zero there.
+	 */
+	if ((l & (Tom2Enabled | Tom2ForceMemTypeWB)) ==
+		 (Tom2Enabled | Tom2ForceMemTypeWB))
+		return 1;
+	return 0;
+}
+
+/**
+ * mtrr_trim_uncached_memory - trim RAM not covered by MTRRs
+ *
+ * Some buggy BIOSes don't setup the MTRRs properly for systems with certain
+ * memory configurations.  This routine checks that the highest MTRR matches
+ * the end of memory, to make sure the MTRRs having a write back type cover
+ * all of the memory the kernel is intending to use. If not, it'll trim any
+ * memory off the end by adjusting end_pfn, removing it from the kernel's
+ * allocation pools, warning the user with an obnoxious message.
+ */
+int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
+{
+	unsigned long i, base, size, highest_addr = 0, def, dummy;
+	mtrr_type type;
+	u64 trim_start, trim_size;
+
+	/*
+	 * Make sure we only trim uncachable memory on machines that
+	 * support the Intel MTRR architecture:
+	 */
+	rdmsr(MTRRdefType_MSR, def, dummy);
+	def &= 0xff;
+	if (!is_cpu(INTEL) || disable_mtrr_trim || def != MTRR_TYPE_UNCACHABLE)
+		return 0;
+
+	/* Find highest cached pfn */
+	for (i = 0; i < num_var_ranges; i++) {
+		mtrr_if->get(i, &base, &size, &type);
+		if (type != MTRR_TYPE_WRBACK)
+			continue;
+		base <<= PAGE_SHIFT;
+		size <<= PAGE_SHIFT;
+		if (highest_addr < base + size)
+			highest_addr = base + size;
+	}
+
+	if (amd_special_default_mtrr(end_pfn))
+		return 0;
+
+	if ((highest_addr >> PAGE_SHIFT) < end_pfn) {
+		printk(KERN_WARNING "***************\n");
+		printk(KERN_WARNING "**** WARNING: likely BIOS bug\n");
+		printk(KERN_WARNING "**** MTRRs don't cover all of "
+		       "memory, trimmed %ld pages\n", end_pfn -
+		       (highest_addr >> PAGE_SHIFT));
+		printk(KERN_WARNING "***************\n");
+
+		printk(KERN_INFO "update e820 for mtrr\n");
+		trim_start = highest_addr;
+		trim_size = end_pfn;
+		trim_size <<= PAGE_SHIFT;
+		trim_size -= trim_start;
+		add_memory_region(trim_start, trim_size, E820_RESERVED);
+		update_e820();
+		return 1;
+	}
+
+	return 0;
+}
+#endif
 
 /**
  * mtrr_bp_init - initialize mtrrs on the boot CPU
diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
index 54347e9a95c0..fb74a2c20814 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.h
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
@@ -12,6 +12,7 @@
 #define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1)
 
 #define NUM_FIXED_RANGES 88
+#define MAX_VAR_RANGES 256
 #define MTRRfix64K_00000_MSR 0x250
 #define MTRRfix16K_80000_MSR 0x258
 #define MTRRfix16K_A0000_MSR 0x259
@@ -32,6 +33,8 @@
    an 8 bit field: */
 typedef u8 mtrr_type;
 
+extern unsigned int mtrr_usage_table[MAX_VAR_RANGES];
+
 struct mtrr_ops {
 	u32	vendor;
 	u32	use_intel_if;
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 6cbd15625dce..12948316e6a6 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -310,6 +310,13 @@ void __init setup_arch(char **cmdline_p)
 	 * we are rounding upwards:
 	 */
 	end_pfn = e820_end_of_ram();
+	/* update e820 for memory not covered by WB MTRRs */
+	mtrr_bp_init();
+	if (mtrr_trim_uncached_memory(end_pfn)) {
+		e820_register_active_regions(0, 0, -1UL);
+		end_pfn = e820_end_of_ram();
+	}
+
 	num_physpages = end_pfn;
 
 	check_efer();
diff --git a/include/asm-x86/mtrr.h b/include/asm-x86/mtrr.h
index 262670e42078..319d065800be 100644
--- a/include/asm-x86/mtrr.h
+++ b/include/asm-x86/mtrr.h
@@ -97,6 +97,7 @@ extern int mtrr_del_page (int reg, unsigned long base, unsigned long size);
 extern void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi);
 extern void mtrr_ap_init(void);
 extern void mtrr_bp_init(void);
+extern int mtrr_trim_uncached_memory(unsigned long end_pfn);
 #  else
 #define mtrr_save_fixed_ranges(arg) do {} while (0)
 #define mtrr_save_state() do {} while (0)
@@ -120,7 +121,10 @@ static __inline__ int mtrr_del_page (int reg, unsigned long base,
 {
     return -ENODEV;
 }
-
+static inline int mtrr_trim_uncached_memory(unsigned long end_pfn)
+{
+	return 0;
+}
 static __inline__ void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi) {;}
 
 #define mtrr_ap_init() do {} while (0)
-- 
cgit v1.2.3-59-g8ed1b


From 71617bf140fd5a35645527502cd330f84045d40c Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:33:18 +0100
Subject: x86: only call early_init_amd one time

Andi's patch
"
    x86: move X86_FEATURE_CONSTANT_TSC into early cpu feature detection

    Need this in the next patch in time_init and that happens early.

    This includes a minor fix on i386 where early_intel_workarounds()
    [which is now called early_init_intel] really executes early as
    the comments say.
"
calling early_init_amd in early_identify_cpu and identify_cpu two times.

this patch remove the one in identify_cpu

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 12948316e6a6..08e85b79e702 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -954,6 +954,9 @@ static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
 	case X86_VENDOR_AMD:
 		early_init_amd(c);
 		break;
+	case X86_VENDOR_INTEL:
+		early_init_intel(c);
+		break;
 	}
 
 }
@@ -1020,14 +1023,6 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 	numa_add_cpu(smp_processor_id());
 #endif
 
-	switch (c->x86_vendor) {
-	case X86_VENDOR_AMD:
-		early_init_amd(c);
-		break;
-	case X86_VENDOR_INTEL:
-		early_init_intel(c);
-		break;
-	}
 }
 
 void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
-- 
cgit v1.2.3-59-g8ed1b


From 67926892ef7a7fbc76de607120d44416019fdf07 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael-lists@free-electrons.com>
Date: Wed, 30 Jan 2008 13:33:18 +0100
Subject: x86: fix unconditional arch/x86/kernel/pcspeaker.o compiling

do not add the pcspkr platform device if pcspkr support is disabled.

Signed-off-by: Michael Opdenacker <michael@free-electrons.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/Makefile | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index c414c45a0f13..5bdb0f0431e9 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -67,7 +67,10 @@ obj-$(CONFIG_MGEODE_LX)		+= geode_32.o mfgpt_32.o
 
 obj-$(CONFIG_VMI)		+= vmi_32.o vmiclock_32.o
 obj-$(CONFIG_PARAVIRT)		+= paravirt.o paravirt_patch_$(BITS).o
+
+ifdef CONFIG_INPUT_PCSPKR
 obj-y				+= pcspeaker.o
+endif
 
 obj-$(CONFIG_SCx200)		+= scx200_32.o
 
-- 
cgit v1.2.3-59-g8ed1b


From 27415a4fe369e07a1393ae52c8ed8e48aabed5a9 Mon Sep 17 00:00:00 2001
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Date: Wed, 30 Jan 2008 13:33:18 +0100
Subject: x86: move warning message of polling idle and HT enabled

The warning message at idle_setup() is never shown because
smp_num_sibling hasn't been updated at this point yet.

Move this polling idle and HT enabled warning to select_idle_routine().
I also implement this warning on 64-bit kernel.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_32.c | 18 ++++++++++++------
 arch/x86/kernel/process_64.c | 17 ++++++++++++-----
 2 files changed, 24 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 9f45a51af968..b72d7d132072 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -295,17 +295,27 @@ static int mwait_usable(const struct cpuinfo_x86 *c)
 
 void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
 {
+	static int selected;
+
+	if (selected)
+		return;
+#ifdef CONFIG_X86_SMP
+	if (pm_idle == poll_idle && smp_num_siblings > 1) {
+		printk(KERN_WARNING "WARNING: polling idle and HT enabled,"
+			" performance may degrade.\n");
+	}
+#endif
 	if (cpu_has(c, X86_FEATURE_MWAIT) && mwait_usable(c)) {
-		printk("monitor/mwait feature present.\n");
 		/*
 		 * Skip, if setup has overridden idle.
 		 * One CPU supports mwait => All CPUs supports mwait
 		 */
 		if (!pm_idle) {
-			printk("using mwait in idle threads.\n");
+			printk(KERN_INFO "using mwait in idle threads.\n");
 			pm_idle = mwait_idle;
 		}
 	}
+	selected = 1;
 }
 
 static int __init idle_setup(char *str)
@@ -313,10 +323,6 @@ static int __init idle_setup(char *str)
 	if (!strcmp(str, "poll")) {
 		printk("using polling idle threads.\n");
 		pm_idle = poll_idle;
-#ifdef CONFIG_X86_SMP
-		if (smp_num_siblings > 1)
-			printk("WARNING: polling idle and HT enabled, performance may degrade.\n");
-#endif
 	} else if (!strcmp(str, "mwait"))
 		force_mwait = 1;
 	else
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index dbe0a846ec52..95313532b2e0 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -291,20 +291,27 @@ static int mwait_usable(const struct cpuinfo_x86 *c)
 
 void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
 {
-	static int printed;
+	static int selected;
+
+	if (selected)
+		return;
+#ifdef CONFIG_X86_SMP
+	if (pm_idle == poll_idle && smp_num_siblings > 1) {
+		printk(KERN_WARNING "WARNING: polling idle and HT enabled,"
+			" performance may degrade.\n");
+	}
+#endif
 	if (cpu_has(c, X86_FEATURE_MWAIT) && mwait_usable(c)) {
 		/*
 		 * Skip, if setup has overridden idle.
 		 * One CPU supports mwait => All CPUs supports mwait
 		 */
 		if (!pm_idle) {
-			if (!printed) {
-				printk(KERN_INFO "using mwait in idle threads.\n");
-				printed = 1;
-			}
+			printk(KERN_INFO "using mwait in idle threads.\n");
 			pm_idle = mwait_idle;
 		}
 	}
+	selected = 1;
 }
 
 static int __init idle_setup(char *str)
-- 
cgit v1.2.3-59-g8ed1b


From 74ff305b05b0974b30022a48145075e6d9a7fb2b Mon Sep 17 00:00:00 2001
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Date: Wed, 30 Jan 2008 13:33:18 +0100
Subject: x86: move select_idle_routine() call after detect_ht()

Move the select_idle_routine() call to after the detect_ht() call at
identify_cpu() on 64-bit.

This change is for printing the polling idle and HT enabled warning
message properly.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 08e85b79e702..7edb43f0b279 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -999,7 +999,6 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 		break;
 	}
 
-	select_idle_routine(c);
 	detect_ht(c);
 
 	/*
@@ -1017,6 +1016,8 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 #ifdef CONFIG_X86_MCE
 	mcheck_init(c);
 #endif
+	select_idle_routine(c);
+
 	if (c != &boot_cpu_data)
 		mtrr_ap_init();
 #ifdef CONFIG_NUMA
-- 
cgit v1.2.3-59-g8ed1b


From 47db4c3e932dbf889f34aab8aac2b1391581a9a5 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:33:18 +0100
Subject: x86: checking aperture report for node instead

currently when gart iommu is enabled by BIOS or previous we got

"
Checking aperture...
CPU 0: aperture @4000000 size 64MB
CPU 1: aperture @4000000 size 64MB
"
we should use use Node instead.

we will get
"
Checking aperture...
Node 0: aperture @4000000 size 64MB
Node 1: aperture @4000000 size 64MB
"

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/aperture_64.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index bf1b469d5847..0b837bb3becb 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -312,6 +312,7 @@ void __init gart_iommu_hole_init(void)
 	u32 aper_size, aper_alloc = 0, aper_order = 0, last_aper_order = 0;
 	u64 aper_base, last_aper_base = 0;
 	int fix, num, valid_agp = 0;
+	int node;
 
 	if (gart_iommu_aperture_disabled || !fix_aperture ||
 	    !early_pci_allowed())
@@ -320,6 +321,7 @@ void __init gart_iommu_hole_init(void)
 	printk(KERN_INFO  "Checking aperture...\n");
 
 	fix = 0;
+	node = 0;
 	for (num = 24; num < 32; num++) {
 		if (!early_is_k8_nb(read_pci_config(0, num, 3, 0x00)))
 			continue;
@@ -332,8 +334,9 @@ void __init gart_iommu_hole_init(void)
 		aper_base = read_pci_config(0, num, 3, 0x94) & 0x7fff;
 		aper_base <<= 25;
 
-		printk(KERN_INFO "CPU %d: aperture @ %Lx size %u MB\n",
-				num-24, aper_base, aper_size>>20);
+		printk(KERN_INFO "Node %d: aperture @ %Lx size %u MB\n",
+				node, aper_base, aper_size >> 20);
+		node++;
 
 		if (!aperture_valid(aper_base, aper_size)) {
 			fix = 1;
-- 
cgit v1.2.3-59-g8ed1b


From 8a650ce297c723ebe7da17ec2890f6971438aee1 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:33:19 +0100
Subject: x86: add stringify header

We use a __stringify construction at paravirt_patch_64.c.
It's better practice to include the stringify header directly

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/paravirt_patch_64.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/paravirt_patch_64.c b/arch/x86/kernel/paravirt_patch_64.c
index cbfc4f3069e3..7d904e138d7e 100644
--- a/arch/x86/kernel/paravirt_patch_64.c
+++ b/arch/x86/kernel/paravirt_patch_64.c
@@ -1,5 +1,6 @@
 #include <asm/paravirt.h>
 #include <asm/asm-offsets.h>
+#include <linux/stringify.h>
 
 DEF_NATIVE(pv_irq_ops, irq_disable, "cli");
 DEF_NATIVE(pv_irq_ops, irq_enable, "sti");
-- 
cgit v1.2.3-59-g8ed1b


From b03878307a78ba0248f6f8d24279c846f1a26f6e Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:33:19 +0100
Subject: x86: provide a native_init_IRQ function on 64-bit

x86_64 lacks a native_init_IRQ() function, so we turn the arch's
init_IRQ() function into a native construct

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/i8259_64.c  | 4 +++-
 include/asm-x86/hw_irq_64.h | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/i8259_64.c b/arch/x86/kernel/i8259_64.c
index d3edb9f23f2c..fa57a1568508 100644
--- a/arch/x86/kernel/i8259_64.c
+++ b/arch/x86/kernel/i8259_64.c
@@ -456,7 +456,9 @@ void __init init_ISA_irqs (void)
 	}
 }
 
-void __init init_IRQ(void)
+void init_IRQ(void) __attribute__((weak, alias("native_init_IRQ")));
+
+void __init native_init_IRQ(void)
 {
 	int i;
 
diff --git a/include/asm-x86/hw_irq_64.h b/include/asm-x86/hw_irq_64.h
index a346159b6ac3..312a58d6dac6 100644
--- a/include/asm-x86/hw_irq_64.h
+++ b/include/asm-x86/hw_irq_64.h
@@ -141,6 +141,7 @@ extern void print_IO_APIC(void);
 extern int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn);
 extern void send_IPI(int dest, int vector);
 extern void setup_ioapic_dest(void);
+extern void native_init_IRQ(void);
 
 extern unsigned long io_apic_irqs;
 
-- 
cgit v1.2.3-59-g8ed1b


From 88b4755f0fa8f5075ac0182f07852acbb397e140 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:33:19 +0100
Subject: x86: fill pv_cpu_ops structure with cr8 fields

This patch fills in the read and write cr8 fields with their
native version.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/paravirt.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index c20b4f8d62f5..c67d33103b91 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -319,6 +319,10 @@ struct pv_cpu_ops pv_cpu_ops = {
 	.read_cr4 = native_read_cr4,
 	.read_cr4_safe = native_read_cr4_safe,
 	.write_cr4 = native_write_cr4,
+#ifdef CONFIG_X86_64
+	.read_cr8 = native_read_cr8,
+	.write_cr8 = native_write_cr8,
+#endif
 	.wbinvd = native_wbinvd,
 	.read_msr = native_read_msr_safe,
 	.write_msr = native_write_msr_safe,
-- 
cgit v1.2.3-59-g8ed1b


From a59153dceb860f810b2ecd2504162309291edd4c Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:33:19 +0100
Subject: x86: add asm_offset PARAVIRT constants

This patch adds the constant PARAVIRT needs in asm_offsets_64.c

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/asm-offsets_64.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index 2b32719a3fea..494e1e096ee6 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -61,6 +61,20 @@ int main(void)
 	ENTRY(data_offset);
 	BLANK();
 #undef ENTRY
+#ifdef CONFIG_PARAVIRT
+	BLANK();
+	OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled);
+	OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops);
+	OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops);
+	OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
+	OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
+	OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
+	OFFSET(PV_CPU_irq_enable_syscall_ret, pv_cpu_ops, irq_enable_syscall_ret);
+	OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
+	OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
+#endif
+
+
 #ifdef CONFIG_IA32_EMULATION
 #define ENTRY(entry) DEFINE(IA32_SIGCONTEXT_ ## entry, offsetof(struct sigcontext_ia32, entry))
 	ENTRY(ax);
-- 
cgit v1.2.3-59-g8ed1b


From fbf519240c840f51e4d4af35c3c19e1df160dc48 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:33:19 +0100
Subject: x86: provide __parainstructions section

This patch adds the __parainstructions section to vmlinux.lds.S.
It's needed for the patching system.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/vmlinux_64.lds.S | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S
index 7457370d7916..0992b9946c6f 100644
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ b/arch/x86/kernel/vmlinux_64.lds.S
@@ -178,6 +178,14 @@ SECTIONS
   }
   __con_initcall_end = .;
   SECURITY_INIT
+
+  . = ALIGN(8);
+  .parainstructions : AT(ADDR(.parainstructions) - LOAD_OFFSET) {
+  __parainstructions = .;
+       *(.parainstructions)
+  __parainstructions_end = .;
+  }
+
   . = ALIGN(8);
   __alt_instructions = .;
   .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
-- 
cgit v1.2.3-59-g8ed1b


From d8dd8eec57254adac48e46c6d191cb24161d8b4d Mon Sep 17 00:00:00 2001
From: Eduardo Habkost <ehabkost@redhat.com>
Date: Wed, 30 Jan 2008 13:33:20 +0100
Subject: x86: don't set pagetable_setup_{start,done} hooks on 64-bit

paravirt_pagetable_setup_{start,done}() are not used (yet) under x86_64,
and native_pagetable_setup_{start,done}() don't exist on x86_64. So they
don't need to be set.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/paravirt.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index c67d33103b91..37f38b71c50a 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -367,8 +367,10 @@ struct pv_apic_ops pv_apic_ops = {
 };
 
 struct pv_mmu_ops pv_mmu_ops = {
+#ifndef CONFIG_X86_64
 	.pagetable_setup_start = native_pagetable_setup_start,
 	.pagetable_setup_done = native_pagetable_setup_done,
+#endif
 
 	.read_cr2 = native_read_cr2,
 	.write_cr2 = native_write_cr2,
-- 
cgit v1.2.3-59-g8ed1b


From f95f2f7b9d7a3da79a833a8fd78a5154cc4b3107 Mon Sep 17 00:00:00 2001
From: Eduardo Habkost <ehabkost@redhat.com>
Date: Wed, 30 Jan 2008 13:33:20 +0100
Subject: x86: fill in missing pv_mmu_ops entries for PAGETABLE_LEVELS >= 3

This finally makes paravirt-ops able to compile and boot under x86_64.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/paravirt.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 37f38b71c50a..075962cc75ab 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -398,16 +398,23 @@ struct pv_mmu_ops pv_mmu_ops = {
 	.kmap_atomic_pte = kmap_atomic,
 #endif
 
+#if PAGETABLE_LEVELS >= 3
 #ifdef CONFIG_X86_PAE
 	.set_pte_atomic = native_set_pte_atomic,
 	.set_pte_present = native_set_pte_present,
-	.set_pud = native_set_pud,
 	.pte_clear = native_pte_clear,
 	.pmd_clear = native_pmd_clear,
-
+#endif
+	.set_pud = native_set_pud,
 	.pmd_val = native_pmd_val,
 	.make_pmd = native_make_pmd,
+
+#if PAGETABLE_LEVELS == 4
+	.pud_val = native_pud_val,
+	.make_pud = native_make_pud,
+	.set_pgd = native_set_pgd,
 #endif
+#endif /* PAGETABLE_LEVELS >= 3 */
 
 	.pte_val = native_pte_val,
 	.pgd_val = native_pgd_val,
-- 
cgit v1.2.3-59-g8ed1b


From 7d851c8d3db0f79b92c8b14361779ede8acd2488 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:20 +0100
Subject: x86: add framework to disable CPUID bits on the command line

There are already various options to disable specific cpuid bits
on the command line. They all use their own variable. Add a generic
mask to make this easier in the future.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/common.c | 6 ++++++
 arch/x86/kernel/setup_64.c   | 6 ++++++
 include/asm-x86/cpufeature.h | 4 ++++
 include/asm-x86/processor.h  | 1 +
 4 files changed, 17 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 4bd326d0322c..f0f29ddf33a2 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -57,6 +57,8 @@ DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = {
 } };
 EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
 
+__u32 cleared_cpu_caps[NCAPINTS] __cpuinitdata;
+
 static int cachesize_override __cpuinitdata = -1;
 static int disable_x86_fxsr __cpuinitdata;
 static int disable_x86_serial_nr __cpuinitdata = 1;
@@ -497,6 +499,10 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 			boot_cpu_data.x86_capability[i] &= c->x86_capability[i];
 	}
 
+	/* Clear all flags overriden by options */
+	for (i = 0; i < NCAPINTS; i++)
+		c->x86_capability[i] ^= cleared_cpu_caps[i];
+
 	/* Init Machine Check Exception if available. */
 	mcheck_init(c);
 
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 7edb43f0b279..df159520bbd2 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -80,6 +80,8 @@
 struct cpuinfo_x86 boot_cpu_data __read_mostly;
 EXPORT_SYMBOL(boot_cpu_data);
 
+__u32 cleared_cpu_caps[NCAPINTS] __cpuinitdata;
+
 unsigned long mmu_cr4_features;
 
 /* Boot loader ID as an integer, for the benefit of proc_dointvec */
@@ -1013,6 +1015,10 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 			boot_cpu_data.x86_capability[i] &= c->x86_capability[i];
 	}
 
+	/* Clear all flags overriden by options */
+	for (i = 0; i < NCAPINTS; i++)
+		c->x86_capability[i] ^= cleared_cpu_caps[i];
+
 #ifdef CONFIG_X86_MCE
 	mcheck_init(c);
 #endif
diff --git a/include/asm-x86/cpufeature.h b/include/asm-x86/cpufeature.h
index 29727bf0e177..b8f53f869e1f 100644
--- a/include/asm-x86/cpufeature.h
+++ b/include/asm-x86/cpufeature.h
@@ -131,6 +131,10 @@
 
 #define set_cpu_cap(c, bit)	set_bit(bit, (unsigned long *)((c)->x86_capability))
 #define clear_cpu_cap(c, bit)	clear_bit(bit, (unsigned long *)((c)->x86_capability))
+#define setup_clear_cpu_cap(bit) do { \
+	clear_cpu_cap(&boot_cpu_data, bit);	\
+	set_bit(bit, cleared_cpu_caps); 	\
+} while (0)
 
 #define cpu_has_fpu		boot_cpu_has(X86_FEATURE_FPU)
 #define cpu_has_vme		boot_cpu_has(X86_FEATURE_VME)
diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index 81ecfed83e47..ab4d0c2a3f8f 100644
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -118,6 +118,7 @@ struct cpuinfo_x86 {
 extern struct cpuinfo_x86 boot_cpu_data;
 extern struct cpuinfo_x86 new_cpu_data;
 extern struct tss_struct doublefault_tss;
+extern __u32 cleared_cpu_caps[NCAPINTS];
 
 #ifdef CONFIG_SMP
 DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
-- 
cgit v1.2.3-59-g8ed1b


From 135302577bb964ebf23376e2d991405ef4ff0457 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:20 +0100
Subject: x86: convert some existing cpuid disable options to new generic
 bitmap

This convers nofxsr, mem=nopentium and nosep to use the new
generic cpuid disable bitmap instead of using own variables.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/common.c | 34 ++++------------------------------
 arch/x86/kernel/setup_32.c   |  5 +----
 2 files changed, 5 insertions(+), 34 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index f0f29ddf33a2..5f9c8e3a3e0f 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -60,14 +60,10 @@ EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
 __u32 cleared_cpu_caps[NCAPINTS] __cpuinitdata;
 
 static int cachesize_override __cpuinitdata = -1;
-static int disable_x86_fxsr __cpuinitdata;
 static int disable_x86_serial_nr __cpuinitdata = 1;
-static int disable_x86_sep __cpuinitdata;
 
 struct cpu_dev * cpu_devs[X86_VENDOR_NUM] = {};
 
-extern int disable_pse;
-
 static void __cpuinit default_init(struct cpuinfo_x86 * c)
 {
 	/* Not much we can do here... */
@@ -216,16 +212,8 @@ static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c, int early)
 
 static int __init x86_fxsr_setup(char * s)
 {
-	/* Tell all the other CPUs to not use it... */
-	disable_x86_fxsr = 1;
-
-	/*
-	 * ... and clear the bits early in the boot_cpu_data
-	 * so that the bootup process doesn't try to do this
-	 * either.
-	 */
-	clear_bit(X86_FEATURE_FXSR, boot_cpu_data.x86_capability);
-	clear_bit(X86_FEATURE_XMM, boot_cpu_data.x86_capability);
+	setup_clear_cpu_cap(X86_FEATURE_FXSR);
+	setup_clear_cpu_cap(X86_FEATURE_XMM);
 	return 1;
 }
 __setup("nofxsr", x86_fxsr_setup);
@@ -233,7 +221,7 @@ __setup("nofxsr", x86_fxsr_setup);
 
 static int __init x86_sep_setup(char * s)
 {
-	disable_x86_sep = 1;
+	setup_clear_cpu_cap(X86_FEATURE_SEP);
 	return 1;
 }
 __setup("nosep", x86_sep_setup);
@@ -462,19 +450,6 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 	if ( tsc_disable )
 		clear_bit(X86_FEATURE_TSC, c->x86_capability);
 
-	/* FXSR disabled? */
-	if (disable_x86_fxsr) {
-		clear_bit(X86_FEATURE_FXSR, c->x86_capability);
-		clear_bit(X86_FEATURE_XMM, c->x86_capability);
-	}
-
-	/* SEP disabled? */
-	if (disable_x86_sep)
-		clear_bit(X86_FEATURE_SEP, c->x86_capability);
-
-	if (disable_pse)
-		clear_bit(X86_FEATURE_PSE, c->x86_capability);
-
 	/* If the model name is still unset, do table lookup. */
 	if ( !c->x86_model_id[0] ) {
 		char *p;
@@ -629,8 +604,7 @@ void __init early_cpu_init(void)
 	/* pse is not compatible with on-the-fly unmapping,
 	 * disable it even if the cpus claim to support it.
 	 */
-	clear_bit(X86_FEATURE_PSE, boot_cpu_data.x86_capability);
-	disable_pse = 1;
+	setup_clear_cpu_cap(X86_FEATURE_PSE);
 #endif
 }
 
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 6802a383077d..26a56f714d34 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -68,8 +68,6 @@
    address, and must not be in the .bss segment! */
 unsigned long init_pg_tables_end __initdata = ~0UL;
 
-int disable_pse __cpuinitdata = 0;
-
 /*
  * Machine setup..
  */
@@ -242,8 +240,7 @@ static int __init parse_mem(char *arg)
 		return -EINVAL;
 
 	if (strcmp(arg, "nopentium") == 0) {
-		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_PSE);
-		disable_pse = 1;
+		setup_clear_cpu_cap(X86_FEATURE_PSE);
 	} else {
 		/* If the user specifies memory size, we
 		 * limit the BIOS-provided memory map to
-- 
cgit v1.2.3-59-g8ed1b


From 8424950b5e85543a494b5d940bb2f5f9f16f56a9 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:20 +0100
Subject: x86: don't disable RDTSC in userland for 32bit notsc

Modern 32bit userland doesn't even boot when the TSC is disabled
because ld.so tends to contain RDTSCs.  So make notsc only effective for the
kernel, similar to 64bit.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/common.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 5f9c8e3a3e0f..c66991a04a8a 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -654,7 +654,6 @@ void __cpuinit cpu_init(void)
 		printk(KERN_NOTICE "Disabling TSC...\n");
 		/**** FIX-HPA: DOES THIS REALLY BELONG HERE? ****/
 		clear_bit(X86_FEATURE_TSC, boot_cpu_data.x86_capability);
-		set_in_cr4(X86_CR4_TSD);
 	}
 
 	load_idt(&idt_descr);
-- 
cgit v1.2.3-59-g8ed1b


From 404ee5b14b68d3cba287c2596588b83790c49f7b Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:20 +0100
Subject: x86: convert TSC disabling to generic cpuid disable bitmap

Fix from: Ian Campbell <ijc@hellion.org.uk>

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/bugs.c    |  2 +-
 arch/x86/kernel/cpu/common.c  |  9 ---------
 arch/x86/kernel/numaq_32.c    |  2 +-
 arch/x86/kernel/tsc_32.c      | 14 +++-----------
 arch/x86/mach-voyager/setup.c |  2 +-
 arch/x86/xen/time.c           |  2 +-
 include/asm-x86/cpufeature.h  |  4 ++++
 include/asm-x86/tsc.h         |  2 --
 8 files changed, 11 insertions(+), 26 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index a96abd453e0d..9b95edcfc6ae 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -154,7 +154,7 @@ static void __init check_config(void)
  * If we configured ourselves for a TSC, we'd better have one!
  */
 #ifdef CONFIG_X86_TSC
-	if (!cpu_has_tsc && !tsc_disable)
+	if (!cpu_has_tsc)
 		panic("Kernel compiled for Pentium+, requires TSC feature!");
 #endif
 
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index c66991a04a8a..dfc9563fc4f0 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -446,10 +446,6 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 	 * we do "generic changes."
 	 */
 
-	/* TSC disabled? */
-	if ( tsc_disable )
-		clear_bit(X86_FEATURE_TSC, c->x86_capability);
-
 	/* If the model name is still unset, do table lookup. */
 	if ( !c->x86_model_id[0] ) {
 		char *p;
@@ -650,11 +646,6 @@ void __cpuinit cpu_init(void)
 
 	if (cpu_has_vme || cpu_has_tsc || cpu_has_de)
 		clear_in_cr4(X86_CR4_VME|X86_CR4_PVI|X86_CR4_TSD|X86_CR4_DE);
-	if (tsc_disable && cpu_has_tsc) {
-		printk(KERN_NOTICE "Disabling TSC...\n");
-		/**** FIX-HPA: DOES THIS REALLY BELONG HERE? ****/
-		clear_bit(X86_FEATURE_TSC, boot_cpu_data.x86_capability);
-	}
 
 	load_idt(&idt_descr);
 	switch_to_new_gdt();
diff --git a/arch/x86/kernel/numaq_32.c b/arch/x86/kernel/numaq_32.c
index 9000d82c6dc0..e65281b1634b 100644
--- a/arch/x86/kernel/numaq_32.c
+++ b/arch/x86/kernel/numaq_32.c
@@ -82,7 +82,7 @@ static int __init numaq_tsc_disable(void)
 {
 	if (num_online_nodes() > 1) {
 		printk(KERN_DEBUG "NUMAQ: disabling TSC\n");
-		tsc_disable = 1;
+		setup_clear_cpu_cap(X86_FEATURE_TSC);
 	}
 	return 0;
 }
diff --git a/arch/x86/kernel/tsc_32.c b/arch/x86/kernel/tsc_32.c
index 2a7b95bd8509..43517e324be8 100644
--- a/arch/x86/kernel/tsc_32.c
+++ b/arch/x86/kernel/tsc_32.c
@@ -24,8 +24,6 @@ static int tsc_enabled;
 unsigned int tsc_khz;
 EXPORT_SYMBOL_GPL(tsc_khz);
 
-int tsc_disable;
-
 #ifdef CONFIG_X86_TSC
 static int __init tsc_setup(char *str)
 {
@@ -40,8 +38,7 @@ static int __init tsc_setup(char *str)
  */
 static int __init tsc_setup(char *str)
 {
-	tsc_disable = 1;
-
+	setup_clear_cpu_cap(X86_FEATURE_TSC);
 	return 1;
 }
 #endif
@@ -395,7 +392,7 @@ void __init tsc_init(void)
 {
 	int cpu;
 
-	if (!cpu_has_tsc || tsc_disable)
+	if (!cpu_has_tsc)
 		goto out_no_tsc;
 
 	cpu_khz = calculate_cpu_khz();
@@ -439,10 +436,5 @@ void __init tsc_init(void)
 	return;
 
 out_no_tsc:
-	/*
-	 * Set the tsc_disable flag if there's no TSC support, this
-	 * makes it a fast flag for the kernel to see whether it
-	 * should be using the TSC.
-	 */
-	tsc_disable = 1;
+	setup_clear_cpu_cap(X86_FEATURE_TSC);
 }
diff --git a/arch/x86/mach-voyager/setup.c b/arch/x86/mach-voyager/setup.c
index 81257a861984..5ae5466b9eb9 100644
--- a/arch/x86/mach-voyager/setup.c
+++ b/arch/x86/mach-voyager/setup.c
@@ -37,7 +37,7 @@ void __init pre_setup_arch_hook(void)
 {
 	/* Voyagers run their CPUs from independent clocks, so disable
 	 * the TSC code because we can't sync them */
-	tsc_disable = 1;
+	setup_clear_cpu_cap(X86_FEATURE_TSC);
 }
 
 void __init trap_init_hook(void)
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index d083ff5ef088..b3721fd6877b 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -592,7 +592,7 @@ __init void xen_time_init(void)
 	set_normalized_timespec(&wall_to_monotonic,
 				-xtime.tv_sec, -xtime.tv_nsec);
 
-	tsc_disable = 0;
+	setup_force_cpu_cap(X86_FEATURE_TSC);
 
 	xen_setup_timer(cpu);
 	xen_setup_cpu_clockevents();
diff --git a/include/asm-x86/cpufeature.h b/include/asm-x86/cpufeature.h
index b8f53f869e1f..3fb7dfa7fc91 100644
--- a/include/asm-x86/cpufeature.h
+++ b/include/asm-x86/cpufeature.h
@@ -135,6 +135,10 @@
 	clear_cpu_cap(&boot_cpu_data, bit);	\
 	set_bit(bit, cleared_cpu_caps); 	\
 } while (0)
+#define setup_force_cpu_cap(bit) do { \
+	set_cpu_cap(&boot_cpu_data, bit);	\
+	clear_bit(bit, cleared_cpu_caps); 	\
+} while (0)
 
 #define cpu_has_fpu		boot_cpu_has(X86_FEATURE_FPU)
 #define cpu_has_vme		boot_cpu_has(X86_FEATURE_VME)
diff --git a/include/asm-x86/tsc.h b/include/asm-x86/tsc.h
index 071e0ce5b664..a6e8d35c3f86 100644
--- a/include/asm-x86/tsc.h
+++ b/include/asm-x86/tsc.h
@@ -16,8 +16,6 @@ typedef unsigned long long cycles_t;
 
 extern unsigned int cpu_khz;
 extern unsigned int tsc_khz;
-/* flag for disabling the tsc */
-extern int tsc_disable;
 
 extern void disable_TSC(void);
 
-- 
cgit v1.2.3-59-g8ed1b


From 191679fdfa63342752ff6a094a2522ae939b8d0c Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:21 +0100
Subject: x86: add noclflush option

To disable CLFLUSH usage, especially in change_page_attr().

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/kernel-parameters.txt | 2 ++
 arch/x86/kernel/cpu/common.c        | 7 +++++++
 arch/x86/kernel/setup_64.c          | 7 +++++++
 3 files changed, 16 insertions(+)

(limited to 'arch')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index b8fadf5f75a3..040e30a33b7c 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1191,6 +1191,8 @@ and is between 256 and 4096 characters. It is defined in the file
 			register save and restore. The kernel will only save
 			legacy floating-point registers on task switch.
 
+	noclflush	[BUGS=X86] Don't use the CLFLUSH instruction
+
 	nohlt		[BUGS=ARM]
 
 	no-hlt		[BUGS=X86-32] Tells the kernel that the hlt
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index dfc9563fc4f0..56b7ea8e6c79 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -542,6 +542,13 @@ void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 }
 #endif
 
+static __init int setup_noclflush(char *arg)
+{
+	setup_clear_cpu_cap(X86_FEATURE_CLFLSH);
+	return 1;
+}
+__setup("noclflush", setup_noclflush);
+
 void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
 {
 	char *vendor = NULL;
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index df159520bbd2..cb9b8a90c094 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -1032,6 +1032,13 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 
 }
 
+static __init int setup_noclflush(char *arg)
+{
+	setup_clear_cpu_cap(X86_FEATURE_CLFLSH);
+	return 1;
+}
+__setup("noclflush", setup_noclflush);
+
 void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
 {
 	if (c->x86_model_id[0])
-- 
cgit v1.2.3-59-g8ed1b


From ac72e7888a612dccfbc15b34698aad441bdfda10 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:21 +0100
Subject: x86: add generic clearcpuid=... option

Add a generic option to clear any cpuid bit. I added it because it was
very easy to add with the new generic cpuid disable bitmap and perhaps
it will be useful in the future.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/kernel-parameters.txt | 13 +++++++++++++
 arch/x86/kernel/cpu/common.c        | 11 +++++++++++
 arch/x86/kernel/setup_64.c          | 11 +++++++++++
 3 files changed, 35 insertions(+)

(limited to 'arch')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 040e30a33b7c..50d564dabb13 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -416,6 +416,19 @@ and is between 256 and 4096 characters. It is defined in the file
 			[SPARC64] tick
 			[X86-64] hpet,tsc
 
+	clearcpuid=BITNUM [X86]
+			Disable CPUID feature X for the kernel. See
+			include/asm-x86/cpufeature.h for the valid bit numbers.
+			Note the Linux specific bits are not necessarily
+			stable over kernel options, but the vendor specific
+			ones should be.
+			Also note that user programs calling CPUID directly
+			or using the feature without checking anything
+			will still see it. This just prevents it from
+			being used by the kernel or shown in /proc/cpuinfo.
+			Also note the kernel might malfunction if you disable
+			some critical bits.
+
 	code_bytes	[IA32/X86_64] How many bytes of object code to print
 			in an oops report.
 			Range: 0 - 8192
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 56b7ea8e6c79..56cc341cc586 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -572,6 +572,17 @@ void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
 		printk("\n");
 }
 
+static __init int setup_disablecpuid(char *arg)
+{
+	int bit;
+	if (get_option(&arg, &bit) && bit < NCAPINTS*32)
+		setup_clear_cpu_cap(bit);
+	else
+		return 0;
+	return 1;
+}
+__setup("clearcpuid=", setup_disablecpuid);
+
 cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
 
 /* This is hacky. :)
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index cb9b8a90c094..79635b7bd57a 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -1050,6 +1050,17 @@ void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
 		printk(KERN_CONT "\n");
 }
 
+static __init int setup_disablecpuid(char *arg)
+{
+	int bit;
+	if (get_option(&arg, &bit) && bit < NCAPINTS*32)
+		setup_clear_cpu_cap(bit);
+	else
+		return 0;
+	return 1;
+}
+__setup("clearcpuid=", setup_disablecpuid);
+
 /*
  *	Get CPU information for use by the procfs.
  */
-- 
cgit v1.2.3-59-g8ed1b


From 834beda15ecc43c110c0a6ac39ec1aa79f891716 Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:21 +0100
Subject: x86: change NR_CPUS arrays in numa_64 fixup

Change the following static arrays sized by NR_CPUS to
per_cpu data variables:

	char cpu_to_node_map[NR_CPUS];

fixup:

  - Split cpu_to_node function into "early" and "late" versions
    so that x86_cpu_to_node_map_early_ptr is not EXPORT'ed and
    the cpu_to_node inline function is more streamlined.

  - This also involves setting up the percpu maps as early as possible.

  - Fix X86_32 NUMA build errors that previous version of this
    patch caused.

V2->V3:
    - add early_cpu_to_node function to keep cpu_to_node efficient
    - move and rename smp_set_apicids() to setup_percpu_maps()
    - call setup_percpu_maps() as early as possible

V1->V2:
    - Removed extraneous casts
    - Fix !NUMA builds with '#ifdef CONFIG_NUMA"

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup64.c    | 41 +++++++++++++++++++++++++++++++++++++++--
 arch/x86/kernel/smpboot_32.c |  2 +-
 arch/x86/kernel/smpboot_64.c | 34 ----------------------------------
 arch/x86/mm/srat_64.c        |  5 +++--
 include/asm-x86/topology.h   | 23 +++++++++++++++++++++++
 5 files changed, 66 insertions(+), 39 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup64.c b/arch/x86/kernel/setup64.c
index 8fa0de810d0b..855ec82e4f76 100644
--- a/arch/x86/kernel/setup64.c
+++ b/arch/x86/kernel/setup64.c
@@ -83,6 +83,40 @@ static int __init nonx32_setup(char *str)
 }
 __setup("noexec32=", nonx32_setup);
 
+/*
+ * Copy data used in early init routines from the initial arrays to the
+ * per cpu data areas.  These arrays then become expendable and the *_ptrs
+ * are zeroed indicating that the static arrays are gone.
+ */
+void __init setup_percpu_maps(void)
+{
+	int cpu;
+
+	for_each_possible_cpu(cpu) {
+#ifdef CONFIG_SMP
+		if (per_cpu_offset(cpu)) {
+#endif
+			per_cpu(x86_cpu_to_apicid, cpu) =
+						x86_cpu_to_apicid_init[cpu];
+#ifdef CONFIG_NUMA
+			per_cpu(x86_cpu_to_node_map, cpu) =
+						x86_cpu_to_node_map_init[cpu];
+#endif
+#ifdef CONFIG_SMP
+		}
+		else
+			printk(KERN_NOTICE "per_cpu_offset zero for cpu %d\n",
+									cpu);
+#endif
+	}
+
+	/* indicate the early static arrays are gone */
+	x86_cpu_to_apicid_early_ptr = NULL;
+#ifdef CONFIG_NUMA
+	x86_cpu_to_node_map_early_ptr = NULL;
+#endif
+}
+
 /*
  * Great future plan:
  * Declare PDA itself and support (irqstack,tss,pgd) as per cpu data.
@@ -104,18 +138,21 @@ void __init setup_per_cpu_areas(void)
 	for_each_cpu_mask (i, cpu_possible_map) {
 		char *ptr;
 
-		if (!NODE_DATA(cpu_to_node(i))) {
+		if (!NODE_DATA(early_cpu_to_node(i))) {
 			printk("cpu with no node %d, num_online_nodes %d\n",
 			       i, num_online_nodes());
 			ptr = alloc_bootmem_pages(size);
 		} else { 
-			ptr = alloc_bootmem_pages_node(NODE_DATA(cpu_to_node(i)), size);
+			ptr = alloc_bootmem_pages_node(NODE_DATA(early_cpu_to_node(i)), size);
 		}
 		if (!ptr)
 			panic("Cannot allocate cpu data for CPU %d\n", i);
 		cpu_pda(i)->data_offset = ptr - __per_cpu_start;
 		memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);
 	}
+
+	/* setup percpu data maps early */
+	setup_percpu_maps();
 } 
 
 void pda_init(int cpu)
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 915ec6267326..50232d476a27 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -465,7 +465,7 @@ cpumask_t node_to_cpumask_map[MAX_NUMNODES] __read_mostly =
 				{ [0 ... MAX_NUMNODES-1] = CPU_MASK_NONE };
 EXPORT_SYMBOL(node_to_cpumask_map);
 /* which node each logical CPU is on */
-int cpu_to_node_map[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = 0 };
+u8 cpu_to_node_map[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = 0 };
 EXPORT_SYMBOL(cpu_to_node_map);
 
 /* set up a mapping between cpu and node. */
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index 93071cdf0849..4e14ecb90764 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -851,39 +851,6 @@ static int __init smp_sanity_check(unsigned max_cpus)
 	return 0;
 }
 
-/*
- * Copy data used in early init routines from the initial arrays to the
- * per cpu data areas.  These arrays then become expendable and the
- * *_ptrs are zeroed indicating that the static arrays are gone.
- */
-void __init smp_set_apicids(void)
-{
-	int cpu;
-
-	for_each_possible_cpu(cpu) {
-		if (per_cpu_offset(cpu)) {
-			per_cpu(x86_cpu_to_apicid, cpu) =
-						x86_cpu_to_apicid_init[cpu];
-#ifdef CONFIG_NUMA
-			per_cpu(x86_cpu_to_node_map, cpu) =
-						x86_cpu_to_node_map_init[cpu];
-#endif
-			per_cpu(x86_bios_cpu_apicid, cpu) =
-						x86_bios_cpu_apicid_init[cpu];
-		}
-		else
-			printk(KERN_NOTICE "per_cpu_offset zero for cpu %d\n",
-									cpu);
-	}
-
-	/* indicate the early static arrays are gone */
-	x86_cpu_to_apicid_early_ptr = NULL;
-#ifdef CONFIG_NUMA
-	x86_cpu_to_node_map_early_ptr = NULL;
-#endif
-	x86_bios_cpu_apicid_early_ptr = NULL;
-}
-
 static void __init smp_cpu_index_default(void)
 {
 	int i;
@@ -906,7 +873,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 	smp_cpu_index_default();
 	current_cpu_data = boot_cpu_data;
 	current_thread_info()->cpu = 0;  /* needed? */
-	smp_set_apicids();
 	set_cpu_sibling_map(0);
 
 	if (smp_sanity_check(max_cpus) < 0) {
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index e5a1ec8342dc..04cbecaeca81 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -382,9 +382,10 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
 			setup_node_bootmem(i, nodes[i].start, nodes[i].end);
 
 	for (i = 0; i < NR_CPUS; i++) {
-		if (cpu_to_node(i) == NUMA_NO_NODE)
+		int node = cpu_to_node(i);
+		if (node == NUMA_NO_NODE)
 			continue;
-		if (!node_isset(cpu_to_node(i), node_possible_map))
+		if (!node_isset(node, node_possible_map))
 			numa_set_node(i, NUMA_NO_NODE);
 	}
 	numa_init_array();
diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h
index 2da1464ecbef..040374f030cf 100644
--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -30,15 +30,29 @@
 #include <asm/mpspec.h>
 
 /* Mappings between logical cpu number and node number */
+#ifdef CONFIG_X86_32
+extern u8 cpu_to_node_map[];
+
+#else
 DECLARE_PER_CPU(u16, x86_cpu_to_node_map);
 extern u16 x86_cpu_to_node_map_init[];
 extern void *x86_cpu_to_node_map_early_ptr;
+#endif
+
 extern cpumask_t node_to_cpumask_map[];
 
 #define NUMA_NO_NODE	((u16)(~0))
 
 /* Returns the number of the node containing CPU 'cpu' */
+#ifdef CONFIG_X86_32
+#define early_cpu_to_node(cpu)	cpu_to_node(cpu)
 static inline int cpu_to_node(int cpu)
+{
+	return cpu_to_node_map[cpu];
+}
+
+#else /* CONFIG_X86_64 */
+static inline int early_cpu_to_node(int cpu)
 {
 	u16 *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
 
@@ -50,6 +64,15 @@ static inline int cpu_to_node(int cpu)
 		return NUMA_NO_NODE;
 }
 
+static inline int cpu_to_node(int cpu)
+{
+	if(per_cpu_offset(cpu))
+		return per_cpu(x86_cpu_to_node_map, cpu);
+	else
+		return NUMA_NO_NODE;
+}
+#endif /* CONFIG_X86_64 */
+
 /*
  * Returns the number of the node containing Node 'node'. This
  * architecture is flat, so it is a pretty simple function!
-- 
cgit v1.2.3-59-g8ed1b


From 0164fe16247ac2e1b697a9bf0e71df81497c4709 Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:21 +0100
Subject: x86: fix early NUMA-id access

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/srat_64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 04cbecaeca81..f828e6a6973d 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -382,7 +382,8 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
 			setup_node_bootmem(i, nodes[i].start, nodes[i].end);
 
 	for (i = 0; i < NR_CPUS; i++) {
-		int node = cpu_to_node(i);
+		int node = early_cpu_to_node(i);
+
 		if (node == NUMA_NO_NODE)
 			continue;
 		if (!node_isset(node, node_possible_map))
-- 
cgit v1.2.3-59-g8ed1b


From 602a54a8cab2759fceb20b3e0c2a27c4eac005df Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:21 +0100
Subject: x86: change bios_cpu_apicid to percpu data variable fixup

Change static bios_cpu_apicid array to a per_cpu data variable.
This includes using a static array used during initialization
similar to the way x86_cpu_to_apicid[] is handled.

There is one early use of bios_cpu_apicid in apic_is_clustered_box().
The other reference in cpu_present_to_apicid() is called after
smp_set_apicids() has setup the percpu version of bios_cpu_apicid.

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/apic_64.c    |  6 +++---
 arch/x86/kernel/setup64.c    | 13 ++++++++-----
 arch/x86/kernel/setup_64.c   |  1 +
 arch/x86/kernel/smpboot_32.c |  2 +-
 arch/x86/mm/srat_64.c        |  2 +-
 5 files changed, 14 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index a7a38c9da136..d8d03e09dea2 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -1205,9 +1205,9 @@ __cpuinit int apic_is_clustered_box(void)
 
 	/* Problem:  Partially populated chassis may not have CPUs in some of
 	 * the APIC clusters they have been allocated.  Only present CPUs have
-	 * x86_bios_cpu_apicid entries, thus causing zeroes in the bitmap.  Since
-	 * clusters are allocated sequentially, count zeros only if they are
-	 * bounded by ones.
+	 * x86_bios_cpu_apicid entries, thus causing zeroes in the bitmap.
+	 * Since clusters are allocated sequentially, count zeros only if
+	 * they are bounded by ones.
 	 */
 	clusters = 0;
 	zeros = 0;
diff --git a/arch/x86/kernel/setup64.c b/arch/x86/kernel/setup64.c
index 855ec82e4f76..0389331059ad 100644
--- a/arch/x86/kernel/setup64.c
+++ b/arch/x86/kernel/setup64.c
@@ -85,10 +85,10 @@ __setup("noexec32=", nonx32_setup);
 
 /*
  * Copy data used in early init routines from the initial arrays to the
- * per cpu data areas.  These arrays then become expendable and the *_ptrs
- * are zeroed indicating that the static arrays are gone.
+ * per cpu data areas.  These arrays then become expendable and the
+ * *_early_ptr's are zeroed indicating that the static arrays are gone.
  */
-void __init setup_percpu_maps(void)
+static void __init setup_per_cpu_maps(void)
 {
 	int cpu;
 
@@ -98,6 +98,8 @@ void __init setup_percpu_maps(void)
 #endif
 			per_cpu(x86_cpu_to_apicid, cpu) =
 						x86_cpu_to_apicid_init[cpu];
+			per_cpu(x86_bios_cpu_apicid, cpu) =
+						x86_bios_cpu_apicid_init[cpu];
 #ifdef CONFIG_NUMA
 			per_cpu(x86_cpu_to_node_map, cpu) =
 						x86_cpu_to_node_map_init[cpu];
@@ -110,8 +112,9 @@ void __init setup_percpu_maps(void)
 #endif
 	}
 
-	/* indicate the early static arrays are gone */
+	/* indicate the early static arrays will soon be gone */
 	x86_cpu_to_apicid_early_ptr = NULL;
+	x86_bios_cpu_apicid_early_ptr = NULL;
 #ifdef CONFIG_NUMA
 	x86_cpu_to_node_map_early_ptr = NULL;
 #endif
@@ -152,7 +155,7 @@ void __init setup_per_cpu_areas(void)
 	}
 
 	/* setup percpu data maps early */
-	setup_percpu_maps();
+	setup_per_cpu_maps();
 } 
 
 void pda_init(int cpu)
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 79635b7bd57a..f84e2662f1ca 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -334,6 +334,7 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_SMP
 	/* setup to use the early static init tables during kernel startup */
 	x86_cpu_to_apicid_early_ptr = (void *)&x86_cpu_to_apicid_init;
+	x86_bios_cpu_apicid_early_ptr = (void *)&x86_bios_cpu_apicid_init;
 #ifdef CONFIG_NUMA
 	x86_cpu_to_node_map_early_ptr = (void *)&x86_cpu_to_node_map_init;
 #endif
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 50232d476a27..915ec6267326 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -465,7 +465,7 @@ cpumask_t node_to_cpumask_map[MAX_NUMNODES] __read_mostly =
 				{ [0 ... MAX_NUMNODES-1] = CPU_MASK_NONE };
 EXPORT_SYMBOL(node_to_cpumask_map);
 /* which node each logical CPU is on */
-u8 cpu_to_node_map[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = 0 };
+int cpu_to_node_map[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = 0 };
 EXPORT_SYMBOL(cpu_to_node_map);
 
 /* set up a mapping between cpu and node. */
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index f828e6a6973d..4aed38fa4a65 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -397,7 +397,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
 static int fake_node_to_pxm_map[MAX_NUMNODES] __initdata = {
 	[0 ... MAX_NUMNODES-1] = PXM_INVAL
 };
-static u16 fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = {
+static s16 fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = {
 	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
 };
 static int __init find_node_by_addr(unsigned long addr)
-- 
cgit v1.2.3-59-g8ed1b


From c49a4955ea504c82f6b690491639bba5b8c1dc47 Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:22 +0100
Subject: x86: add debug of invalid per_cpu map accesses

Provide a means to trap usages of per_cpu map variables before
they are setup.  Define CONFIG_DEBUG_PER_CPU_MAPS to activate.

Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.debug     | 12 ++++++++++++
 arch/x86/mm/numa_64.c      |  3 +++
 include/asm-x86/topology.h |  7 +++++++
 3 files changed, 22 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 88420af98140..0a82b889d76e 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -47,6 +47,18 @@ config DEBUG_PAGEALLOC
 	  This results in a large slowdown, but helps to find certain types
 	  of memory corruptions.
 
+config DEBUG_PER_CPU_MAPS
+	bool "Debug access to per_cpu maps"
+	depends on DEBUG_KERNEL
+	depends on X86_64_SMP
+	default n
+	help
+	  Say Y to verify that the per_cpu map being accessed has
+	  been setup.  Adds a fair amount of code to kernel memory
+	  and decreases performance.
+
+	  Say N if unsure.
+
 config DEBUG_RODATA
 	bool "Write protect kernel read-only data structures"
 	depends on DEBUG_KERNEL
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 5d24dc1ec237..e157cb274b25 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -37,6 +37,9 @@ u16 x86_cpu_to_node_map_init[NR_CPUS] = {
 void *x86_cpu_to_node_map_early_ptr;
 DEFINE_PER_CPU(u16, x86_cpu_to_node_map) = NUMA_NO_NODE;
 EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map);
+#ifdef	CONFIG_DEBUG_PER_CPU_MAPS
+EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr);
+#endif
 
 u16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
 	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h
index 040374f030cf..f1e12329078e 100644
--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -66,6 +66,13 @@ static inline int early_cpu_to_node(int cpu)
 
 static inline int cpu_to_node(int cpu)
 {
+#ifdef	CONFIG_DEBUG_PER_CPU_MAPS
+	if(x86_cpu_to_node_map_early_ptr) {
+		printk("KERN_NOTICE cpu_to_node(%d): usage too early!\n",
+			(int)cpu);
+		BUG();
+	}
+#endif
 	if(per_cpu_offset(cpu))
 		return per_cpu(x86_cpu_to_node_map, cpu);
 	else
-- 
cgit v1.2.3-59-g8ed1b


From d729ab35ee1367b7690458ae9e050571cb055bd3 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:23 +0100
Subject: x86: use v8086_mode helper, trivial unification

Use v8086_mode inline in fault_32.c, no functional change
also ifdef the section for 32-bit only and add to fault_64.c

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c |  4 +++-
 arch/x86/mm/fault_64.c | 11 +++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 276863dc4bdd..93ede2dde958 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -475,14 +475,16 @@ good_area:
 	else
 		tsk->min_flt++;
 
+#ifdef CONFIG_X86_32
 	/*
 	 * Did it hit the DOS screen memory VA from vm86 mode?
 	 */
-	if (regs->flags & VM_MASK) {
+	if (v8086_mode(regs)) {
 		unsigned long bit = (address - 0xA0000) >> PAGE_SHIFT;
 		if (bit < 32)
 			tsk->thread.screen_bitmap |= 1 << bit;
 	}
+#endif
 	up_read(&mm->mmap_sem);
 	return;
 
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 9ef0306efe9e..2d9e6da2cb30 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -514,6 +514,17 @@ good_area:
 		tsk->maj_flt++;
 	else
 		tsk->min_flt++;
+
+#ifdef CONFIG_X86_32
+	/*
+	 * Did it hit the DOS screen memory VA from vm86 mode?
+	 */
+	if (v8086_mode(regs)) {
+		unsigned long bit = (address - 0xA0000) >> PAGE_SHIFT;
+		if (bit < 32)
+			tsk->thread.screen_bitmap |= 1 << bit;
+	}
+#endif
 	up_read(&mm->mmap_sem);
 	return;
 
-- 
cgit v1.2.3-59-g8ed1b


From ade1af77129dea6e335b525ed3be3b846bc1ec13 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@computergmbh.de>
Date: Wed, 30 Jan 2008 13:33:23 +0100
Subject: x86: remove unneded casts

x86: remove unneeded casts

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/misc_32.c     |  5 +++--
 arch/x86/boot/compressed/misc_64.c     |  5 +++--
 arch/x86/ia32/ia32_signal.c            |  2 +-
 arch/x86/kernel/cpu/cpufreq/longhaul.c |  2 +-
 arch/x86/kernel/cpuid.c                |  2 +-
 arch/x86/kernel/kprobes.c              |  2 +-
 arch/x86/kernel/microcode.c            | 12 +++++-------
 arch/x86/kernel/process_64.c           |  2 +-
 arch/x86/kernel/signal_32.c            |  2 +-
 arch/x86/kernel/smpboot_32.c           |  2 +-
 arch/x86/kernel/stacktrace.c           |  2 +-
 arch/x86/kernel/traps_64.c             |  2 +-
 arch/x86/lib/memcpy_32.c               |  4 ++--
 arch/x86/lib/memmove_64.c              |  4 ++--
 14 files changed, 24 insertions(+), 24 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/misc_32.c b/arch/x86/boot/compressed/misc_32.c
index 9103652058c4..5a0281c81edf 100644
--- a/arch/x86/boot/compressed/misc_32.c
+++ b/arch/x86/boot/compressed/misc_32.c
@@ -285,7 +285,7 @@ static void putstr(const char *s)
 static void* memset(void* s, int c, unsigned n)
 {
 	int i;
-	char *ss = (char*)s;
+	char *ss = s;
 
 	for (i=0;i<n;i++) ss[i] = c;
 	return s;
@@ -294,7 +294,8 @@ static void* memset(void* s, int c, unsigned n)
 static void* memcpy(void* dest, const void* src, unsigned n)
 {
 	int i;
-	char *d = (char *)dest, *s = (char *)src;
+	const char *s = src;
+	char *d = dest;
 
 	for (i=0;i<n;i++) d[i] = s[i];
 	return dest;
diff --git a/arch/x86/boot/compressed/misc_64.c b/arch/x86/boot/compressed/misc_64.c
index 8494f0dcff21..8c1573b5d6c7 100644
--- a/arch/x86/boot/compressed/misc_64.c
+++ b/arch/x86/boot/compressed/misc_64.c
@@ -284,7 +284,7 @@ static void putstr(const char *s)
 static void* memset(void* s, int c, unsigned n)
 {
 	int i;
-	char *ss = (char*)s;
+	char *ss = s;
 
 	for (i=0;i<n;i++) ss[i] = c;
 	return s;
@@ -293,7 +293,8 @@ static void* memset(void* s, int c, unsigned n)
 static void* memcpy(void* dest, const void* src, unsigned n)
 {
 	int i;
-	char *d = (char *)dest, *s = (char *)src;
+	const char *s = src;
+	char *d = dest;
 
 	for (i=0;i<n;i++) d[i] = s[i];
 	return dest;
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 0a34c24f19e5..1c0503bdfb1a 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -472,7 +472,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
 			restorer = VDSO32_SYMBOL(current->mm->context.vdso,
 						 sigreturn);
 		else
-			restorer = (void *)&frame->retcode;
+			restorer = &frame->retcode;
 	}
 	err |= __put_user(ptr_to_compat(restorer), &frame->pretcode);
 
diff --git a/arch/x86/kernel/cpu/cpufreq/longhaul.c b/arch/x86/kernel/cpu/cpufreq/longhaul.c
index 749d00cb2ebd..06fcce516d51 100644
--- a/arch/x86/kernel/cpu/cpufreq/longhaul.c
+++ b/arch/x86/kernel/cpu/cpufreq/longhaul.c
@@ -694,7 +694,7 @@ static acpi_status longhaul_walk_callback(acpi_handle obj_handle,
 	if ( acpi_bus_get_device(obj_handle, &d) ) {
 		return 0;
 	}
-	*return_value = (void *)acpi_driver_data(d);
+	*return_value = acpi_driver_data(d);
 	return 1;
 }
 
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index d387c770c518..dec66e452810 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -50,7 +50,7 @@ struct cpuid_command {
 
 static void cpuid_smp_cpuid(void *cmd_block)
 {
-	struct cpuid_command *cmd = (struct cpuid_command *)cmd_block;
+	struct cpuid_command *cmd = cmd_block;
 
 	cpuid(cmd->reg, &cmd->data[0], &cmd->data[1], &cmd->data[2],
 		      &cmd->data[3]);
diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index f7ddbb8c3fe8..a99e764fd66a 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -953,7 +953,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
 				       unsigned long val, void *data)
 {
-	struct die_args *args = (struct die_args *)data;
+	struct die_args *args = data;
 	int ret = NOTIFY_DONE;
 
 	if (args->regs && user_mode_vm(args->regs))
diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c
index 40cfd5488719..6ff447f9fda7 100644
--- a/arch/x86/kernel/microcode.c
+++ b/arch/x86/kernel/microcode.c
@@ -244,8 +244,8 @@ static int microcode_sanity_check(void *mc)
 		return 0;
 	/* check extended signature checksum */
 	for (i = 0; i < ext_sigcount; i++) {
-		ext_sig = (struct extended_signature *)((void *)ext_header
-			+ EXT_HEADER_SIZE + EXT_SIGNATURE_SIZE * i);
+		ext_sig = (void *)ext_header + EXT_HEADER_SIZE +
+			  EXT_SIGNATURE_SIZE * i;
 		sum = orig_sum
 			- (mc_header->sig + mc_header->pf + mc_header->cksum)
 			+ (ext_sig->sig + ext_sig->pf + ext_sig->cksum);
@@ -279,11 +279,9 @@ static int get_maching_microcode(void *mc, int cpu)
 	if (total_size <= get_datasize(mc_header) + MC_HEADER_SIZE)
 		return 0;
 
-	ext_header = (struct extended_sigtable *)(mc +
-			get_datasize(mc_header) + MC_HEADER_SIZE);
+	ext_header = mc + get_datasize(mc_header) + MC_HEADER_SIZE;
 	ext_sigcount = ext_header->count;
-	ext_sig = (struct extended_signature *)((void *)ext_header
-			+ EXT_HEADER_SIZE);
+	ext_sig = (void *)ext_header + EXT_HEADER_SIZE;
 	for (i = 0; i < ext_sigcount; i++) {
 		if (microcode_update_match(cpu, mc_header,
 				ext_sig->sig, ext_sig->pf))
@@ -539,7 +537,7 @@ static int cpu_request_microcode(int cpu)
 		pr_debug("ucode data file %s load failed\n", name);
 		return error;
 	}
-	buf = (void *)firmware->data;
+	buf = firmware->data;
 	size = firmware->size;
 	while ((offset = get_next_ucode_from_buffer(&mc, buf, size, offset))
 			> 0) {
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 95313532b2e0..b4c470658a8a 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -470,7 +470,7 @@ static inline void set_32bit_tls(struct task_struct *t, int tls, u32 addr)
 		.limit_in_pages = 1,
 		.useable = 1,
 	};
-	struct desc_struct *desc = (void *)t->thread.tls_array;
+	struct desc_struct *desc = t->thread.tls_array;
 	desc += tls;
 	fill_ldt(desc, &ud);
 }
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 89a690edf999..caee1f002fed 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -368,7 +368,7 @@ static int setup_frame(int sig, struct k_sigaction *ka,
 	if (current->binfmt->hasvdso)
 		restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
 	else
-		restorer = (void *)&frame->retcode;
+		restorer = &frame->retcode;
 	if (ka->sa.sa_flags & SA_RESTORER)
 		restorer = ka->sa.sa_restorer;
 
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 915ec6267326..7a62dced61ca 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -132,7 +132,7 @@ static unsigned long __cpuinit setup_trampoline(void)
  */
 void __init smp_alloc_memory(void)
 {
-	trampoline_base = (void *) alloc_bootmem_low_pages(PAGE_SIZE);
+	trampoline_base = alloc_bootmem_low_pages(PAGE_SIZE);
 	/*
 	 * Has to be in very low memory so we can execute
 	 * real-mode AP code.
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 4f4021b5bfb5..02f0f61f5b11 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -24,7 +24,7 @@ static int save_stack_stack(void *data, char *name)
 
 static void save_stack_address(void *data, unsigned long addr, int reliable)
 {
-	struct stack_trace *trace = (struct stack_trace *)data;
+	struct stack_trace *trace = data;
 	if (trace->skip > 0) {
 		trace->skip--;
 		return;
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 911ed28afff8..4aa4520f9499 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -217,7 +217,7 @@ static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack,
 static inline int valid_stack_ptr(struct thread_info *tinfo,
 			void *p, unsigned int size, void *end)
 {
-	void *t = (void *)tinfo;
+	void *t = tinfo;
 	if (end) {
 		if (p < end && p >= (end-THREAD_SIZE))
 			return 1;
diff --git a/arch/x86/lib/memcpy_32.c b/arch/x86/lib/memcpy_32.c
index 8ac51b82a632..37756b6fb329 100644
--- a/arch/x86/lib/memcpy_32.c
+++ b/arch/x86/lib/memcpy_32.c
@@ -34,8 +34,8 @@ void *memmove(void *dest, const void *src, size_t n)
 			"cld"
 			: "=&c" (d0), "=&S" (d1), "=&D" (d2)
 			:"0" (n),
-			 "1" (n-1+(const char *)src),
-			 "2" (n-1+(char *)dest)
+			 "1" (n-1+src),
+			 "2" (n-1+dest)
 			:"memory");
 	}
 	return dest;
diff --git a/arch/x86/lib/memmove_64.c b/arch/x86/lib/memmove_64.c
index 751ebae8ec42..80175e47b190 100644
--- a/arch/x86/lib/memmove_64.c
+++ b/arch/x86/lib/memmove_64.c
@@ -11,8 +11,8 @@ void *memmove(void * dest,const void *src,size_t count)
 	if (dest < src) { 
 		return memcpy(dest,src,count);
 	} else {
-		char *p = (char *) dest + count;
-		char *s = (char *) src + count;
+		char *p = dest + count;
+		const char *s = src + count;
 		while (count--)
 			*--p = *--s;
 	}
-- 
cgit v1.2.3-59-g8ed1b


From df43510b18b8439465b4b58556f0495b5f5d771e Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:23 +0100
Subject: x86: check_tsc_warp() slowness fix

100 million max # of loops is a bit too much - reduce it to 10 million.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/tsc_sync.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index ace340524c01..7110078f242c 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -67,12 +67,12 @@ static __cpuinit void check_tsc_warp(void)
 
 		/*
 		 * Be nice every now and then (and also check whether
-		 * measurement is done [we also insert a 100 million
+		 * measurement is done [we also insert a 10 million
 		 * loops safety exit, so we dont lock up in case the
 		 * TSC readout is totally broken]):
 		 */
 		if (unlikely(!(i & 7))) {
-			if (now > end || i > 100000000)
+			if (now > end || i > 10000000)
 				break;
 			cpu_relax();
 			touch_nmi_watchdog();
-- 
cgit v1.2.3-59-g8ed1b


From ad8ca495bd3e03e6751fc0c6a6af44018ebb4036 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:24 +0100
Subject: x86: add warning to check_tsc_warp()

add warning to check_tsc_warp() - if get_cycles() does not progress.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/tsc_sync.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index 7110078f242c..0577825cf89b 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -87,7 +87,11 @@ static __cpuinit void check_tsc_warp(void)
 			nr_warps++;
 			__raw_spin_unlock(&sync_lock);
 		}
-
+	}
+	if (!(now-start)) {
+		printk("Warning: zero tsc calibration delta: %Ld [max: %Ld]\n",
+			now-start, end-start);
+		WARN_ON(1);
 	}
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 17abecfe651c862cd31b1f9e8ef6cfc29083f00d Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:24 +0100
Subject: x86: fix up alternatives with lockdep enabled

An older binutils bug caused us to not fix up alternatives.
This problem involved mutex.c but we dont do lockdep section tricks
there anymore, so this workaround is moot. Keep the printk nevertheless,
just in case ... We can remove that later on.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/alternative.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 318a4f9b7ece..45d79ea890ae 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -342,12 +342,13 @@ void alternatives_smp_switch(int smp)
 
 #ifdef CONFIG_LOCKDEP
 	/*
-	 * A not yet fixed binutils section handling bug prevents
-	 * alternatives-replacement from working reliably, so turn
-	 * it off:
+	 * Older binutils section handling bug prevented
+	 * alternatives-replacement from working reliably.
+	 *
+	 * If this still occurs then you should see a hang
+	 * or crash shortly after this line:
 	 */
-	printk("lockdep: not fixing up alternatives.\n");
-	return;
+	printk("lockdep: fixing up alternatives.\n");
 #endif
 
 	if (noreplace_smp || smp_alt_once)
-- 
cgit v1.2.3-59-g8ed1b


From fc7250ab38346762c567813794b80ee6c57dfed6 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:33:24 +0100
Subject: x86: only support sparsemem

sparsemem is only one supported, so could remove FLAT_NODE_MEM related,
that is only needed !SPARSEMEM

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/numa_64.c | 32 --------------------------------
 1 file changed, 32 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index e157cb274b25..1268d33e7b6e 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -240,35 +240,6 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
 	node_set_online(nodeid);
 }
 
-#ifdef CONFIG_FLAT_NODE_MEM_MAP
-/* Initialize final allocator for a zone */
-static void __init flat_setup_node_zones(int nodeid)
-{
-	unsigned long start_pfn, end_pfn, memmapsize, limit;
-
-	start_pfn = node_start_pfn(nodeid);
-	end_pfn = node_end_pfn(nodeid);
-
-	Dprintk(KERN_INFO "Setting up memmap for node %d %lx-%lx\n",
-		nodeid, start_pfn, end_pfn);
-
-	/*
-	 * Try to allocate mem_map at end to not fill up precious <4GB
-	 * memory.
-	 */
-	memmapsize = sizeof(struct page) * (end_pfn-start_pfn);
-	limit = end_pfn << PAGE_SHIFT;
-
-	NODE_DATA(nodeid)->node_mem_map =
-		__alloc_bootmem_core(NODE_DATA(nodeid)->bdata,
-				     memmapsize, SMP_CACHE_BYTES,
-				     round_down(limit - memmapsize, PAGE_SIZE),
-				     limit);
-}
-#else
-#define flat_setup_node_zones(i) do {} while (0)
-#endif
-
 /*
  * There are unfortunately some poorly designed mainboards around that
  * only connect memory to a single CPU. This breaks the 1:1 cpu->node
@@ -600,9 +571,6 @@ void __init paging_init(void)
 	sparse_memory_present_with_active_regions(MAX_NUMNODES);
 	sparse_init();
 
-	for_each_online_node(i)
-		flat_setup_node_zones(i);
-
 	free_area_init_nodes(max_zone_pfns);
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 9c5ba48958acf6d584f57e9169ad7ecc80ccc390 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:24 +0100
Subject: x86: clean up paging_init()

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/numa_64.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 1268d33e7b6e..70b463abf6f4 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -561,7 +561,6 @@ unsigned long __init numa_free_all_bootmem(void)
 void __init paging_init(void)
 {
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
-	int i;
 
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 	max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
-- 
cgit v1.2.3-59-g8ed1b


From 084662580ddc282f38b31da62af5d75208a59b12 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:24 +0100
Subject: x86: add vdso32-int80-syms.lds to .gitignore

One of the generated files was missed in gitignore.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/vdso/.gitignore | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/x86/vdso/.gitignore b/arch/x86/vdso/.gitignore
index b9030e533418..60274d5746e1 100644
--- a/arch/x86/vdso/.gitignore
+++ b/arch/x86/vdso/.gitignore
@@ -3,3 +3,4 @@ vdso-syms.lds
 vdso32-syms.lds
 vdso32-syscall-syms.lds
 vdso32-sysenter-syms.lds
+vdso32-int80-syms.lds
-- 
cgit v1.2.3-59-g8ed1b


From 518edc93f8b29bc3e31a13ced0af27c602feed8f Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:24 +0100
Subject: x86: update reliability argument to printk_address

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 2d9e6da2cb30..dd26e680a431 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -608,7 +608,7 @@ no_context:
 	else
 		printk(KERN_ALERT "Unable to handle kernel paging request");
 	printk(" at %016lx RIP: \n" KERN_ALERT, address);
-	printk_address(regs->ip, regs->bp);
+	printk_address(regs->ip, 1);
 	dump_pagetable(address);
 	tsk->thread.cr2 = address;
 	tsk->thread.trap_no = 14;
-- 
cgit v1.2.3-59-g8ed1b


From dbae595249bdbacd852e677f9b3e995f65c16781 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:33:24 +0100
Subject: x86: export check_tsc_unstable

Exporrt check_tsc_unstable function as GPL symbol. lguest is
a user of it.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/tsc_64.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/tsc_64.c b/arch/x86/kernel/tsc_64.c
index c62f3b6eacc0..947554ddabb6 100644
--- a/arch/x86/kernel/tsc_64.c
+++ b/arch/x86/kernel/tsc_64.c
@@ -92,10 +92,12 @@ sched_clock(void) __attribute__((alias("native_sched_clock")));
 
 static int tsc_unstable;
 
-inline int check_tsc_unstable(void)
+int check_tsc_unstable(void)
 {
 	return tsc_unstable;
 }
+EXPORT_SYMBOL_GPL(check_tsc_unstable);
+
 #ifdef CONFIG_CPU_FREQ
 
 /* Frequency scaling support. Adjust the TSC based timer when the cpu frequency
-- 
cgit v1.2.3-59-g8ed1b


From e68decb52104388ed6c6218be926e10e6cde2814 Mon Sep 17 00:00:00 2001
From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 30 Jan 2008 13:33:24 +0100
Subject: x86: export __supported_pte_mask

export __supported_pte_mask variable as GPL symbol.
lguest is a user of it.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup64.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup64.c b/arch/x86/kernel/setup64.c
index 0389331059ad..309366f8f603 100644
--- a/arch/x86/kernel/setup64.c
+++ b/arch/x86/kernel/setup64.c
@@ -41,6 +41,8 @@ struct desc_ptr idt_descr = { 256 * 16 - 1, (unsigned long) idt_table };
 char boot_cpu_stack[IRQSTACKSIZE] __attribute__((section(".bss.page_aligned")));
 
 unsigned long __supported_pte_mask __read_mostly = ~0UL;
+EXPORT_SYMBOL_GPL(__supported_pte_mask);
+
 static int do_not_nx __cpuinitdata = 0;
 
 /* noexec=on|off
-- 
cgit v1.2.3-59-g8ed1b


From 08b6d290f977d8145804fd2b9bc2c331f2484f8e Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:33:25 +0100
Subject: xen: fix section usage in xen-head.S and setup.c
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

additional section for .init.text appending a number.

A side effect of this was a section mismatch warning because modpost did
not recognize a .init.text section named .init.text.1: WARNING:
vmlinux.o(.text.head+0x247): Section mismatch: reference to
.init.text.1:start_kernel (between 'is386' and 'check_x87')

Fix this by hardcoding the "ax" in the pushsection.  Thanks to Torlaf for
reporting this.

Alan Modra provided the hint that made me able to locate the root cause of
this warning.  And Mike Frysinger told me how to properly fix it using
__INIT/__FINIT.

Fix following Section mismatch warning in addition:
WARNING: vmlinux.o(.text+0x14c8): Section mismatch: reference to .init.data:vsyscall_int80_start (between 'fiddle_vdso' and 'xen_setup_features')

fiddle_vdso was only used from a __init function - so declare it __init.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/xen/setup.c    | 2 +-
 arch/x86/xen/xen-head.S | 6 ++++--
 2 files changed, 5 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 7d6d0ef55890..3bad4773a2f3 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -60,7 +60,7 @@ static void xen_idle(void)
 /*
  * Set the bit indicating "nosegneg" library variants should be used.
  */
-static void fiddle_vdso(void)
+static void __init fiddle_vdso(void)
 {
 	extern const char vdso32_default_start;
 	u32 *mask = VDSO32_SYMBOL(&vdso32_default_start, NOTE_MASK);
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index f8d6937db2ec..288d587ce73c 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -4,16 +4,18 @@
 #ifdef CONFIG_XEN
 
 #include <linux/elfnote.h>
+#include <linux/init.h>
 #include <asm/boot.h>
 #include <xen/interface/elfnote.h>
 
-.pushsection .init.text
+	__INIT
 ENTRY(startup_xen)
 	movl %esi,xen_start_info
 	cld
 	movl $(init_thread_union+THREAD_SIZE),%esp
 	jmp xen_start_kernel
-.popsection
+
+	__FINIT
 
 .pushsection .bss.page_aligned
 	.align PAGE_SIZE_asm
-- 
cgit v1.2.3-59-g8ed1b


From c84d6af881be84687fa924f16b2f4b4690354165 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Wed, 30 Jan 2008 13:33:25 +0100
Subject: x86: reboot: remove inb_p usage

We are driving a motherboard port so use a 2uS explicit delay at this
point.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/reboot.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 5b32f0b4d133..5818dc28167d 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -319,9 +319,11 @@ static inline void kb_wait(void)
 {
 	int i;
 
-	for (i = 0; i < 0x10000; i++)
-		if ((inb_p(0x64) & 0x02) == 0)
+	for (i = 0; i < 0x10000; i++) {
+		if ((inb(0x64) & 0x02) == 0)
 			break;
+		udelay(2);
+	}
 }
 
 void machine_emergency_restart(void)
-- 
cgit v1.2.3-59-g8ed1b


From 625d6cffcac1c96faa18d629f1271d63af0e05f2 Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:25 +0100
Subject: x86: fix early cpu_to_node panic from nr_free_zone_pages

call early_cpu_to_node() since per_cpu(cpu_to_node_map) might not be setup
yet.

I also had to export x86_cpu_to_node_map_early_ptr because of some calls
from the network code to numa_node_id():

	net/ipv4/netfilter/arp_tables.c:
	net/ipv4/netfilter/ip_tables.c:
	net/ipv4/netfilter/ip_tables.c:

Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/numa_64.c      | 2 --
 include/asm-x86/topology.h | 2 ++
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 70b463abf6f4..441af4edea59 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -37,9 +37,7 @@ u16 x86_cpu_to_node_map_init[NR_CPUS] = {
 void *x86_cpu_to_node_map_early_ptr;
 DEFINE_PER_CPU(u16, x86_cpu_to_node_map) = NUMA_NO_NODE;
 EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map);
-#ifdef	CONFIG_DEBUG_PER_CPU_MAPS
 EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr);
-#endif
 
 u16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
 	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h
index 9a8228a177c7..7b0cce2f370d 100644
--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -37,6 +37,8 @@ extern u8 cpu_to_node_map[];
 DECLARE_PER_CPU(u16, x86_cpu_to_node_map);
 extern u16 x86_cpu_to_node_map_init[];
 extern void *x86_cpu_to_node_map_early_ptr;
+/* Returns the number of the current Node. */
+#define numa_node_id()		(early_cpu_to_node(raw_smp_processor_id()))
 #endif
 
 extern cpumask_t node_to_cpumask_map[];
-- 
cgit v1.2.3-59-g8ed1b


From a5ff677c2fb10567d1e750fb9e4417d95081071b Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:25 +0100
Subject: x86: make printk_address available on X86_32

Small fomatting fixes to 64-bit as well, trailing whitespace
and extra semicolon, also move the ifdefs for CONFIG_KALLSYMS
into the function itself.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/traps_32.c | 28 ++++++++++++++++++++++++++++
 arch/x86/kernel/traps_64.c | 11 ++++-------
 2 files changed, 32 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 270cfd483160..8534cb53ff60 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -102,6 +102,34 @@ asmlinkage void machine_check(void);
 int kstack_depth_to_print = 24;
 static unsigned int code_bytes = 64;
 
+void printk_address(unsigned long address, int reliable)
+{
+#ifdef CONFIG_KALLSYMS
+	unsigned long offset = 0, symsize;
+	const char *symname;
+	char *modname;
+	char *delim = ":";
+	char namebuf[128];
+	char reliab[4] = "";
+
+	symname = kallsyms_lookup(address, &symsize, &offset,
+					&modname, namebuf);
+	if (!symname) {
+		printk(" [<%08lx>]\n", address);
+		return;
+	}
+	if (!reliable)
+		strcpy(reliab, "? ");
+
+	if (!modname)
+		modname = delim = "";
+	printk(" [<%08lx>] %s%s%s%s%s+0x%lx/0x%lx\n",
+		address, reliab, delim, modname, delim, symname, offset, symsize);
+#else
+	printk(" [<%08lx>]\n", address);
+#endif
+}
+
 static inline int valid_stack_ptr(struct thread_info *tinfo, void *p, unsigned size)
 {
 	return	p > (void *)tinfo &&
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 4aa4520f9499..4ea727869ded 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -100,15 +100,15 @@ static inline void preempt_conditional_cli(struct pt_regs *regs)
 
 int kstack_depth_to_print = 12;
 
-#ifdef CONFIG_KALLSYMS
 void printk_address(unsigned long address, int reliable)
 {
+#ifdef CONFIG_KALLSYMS
 	unsigned long offset = 0, symsize;
 	const char *symname;
 	char *modname;
 	char *delim = ":";
 	char namebuf[128];
-	char reliab[4] = "";;
+	char reliab[4] = "";
 
 	symname = kallsyms_lookup(address, &symsize, &offset,
 					&modname, namebuf);
@@ -120,16 +120,13 @@ void printk_address(unsigned long address, int reliable)
 		strcpy(reliab, "? ");
 
 	if (!modname)
-		modname = delim = ""; 		
+		modname = delim = "";
 	printk(" [<%016lx>] %s%s%s%s%s+0x%lx/0x%lx\n",
 		address, reliab, delim, modname, delim, symname, offset, symsize);
-}
 #else
-void printk_address(unsigned long address, int reliable)
-{
 	printk(" [<%016lx>]\n", address);
-}
 #endif
+}
 
 static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack,
 					unsigned *usedp, char **idp)
-- 
cgit v1.2.3-59-g8ed1b


From 1b000a5dbeb2f34bc03d45ebdf3f6d24a60c3aed Mon Sep 17 00:00:00 2001
From: Mel Gorman <mel@csn.ul.ie>
Date: Wed, 30 Jan 2008 13:33:25 +0100
Subject: x86: make NUMA work on 32-bit

The DISCONTIG memory model on x86 32 bit uses a remap allocator early
in boot. The objective is that portions of every node are mapped in to
the kernel virtual area (KVA) in place of ZONE_NORMAL so that node-local
allocations can be made for pgdat and mem_map structures.

With SPARSEMEM, the amount that is set aside is insufficient for all the
mem_maps to be allocated. During the boot process, it falls back to using
the bootmem allocator. This breaks assumptions that SPARSEMEM makes about
the layout of the mem_map in memory and results in a VM_BUG_ON triggering
due to pfn_to_page() returning garbage values.

This patch only enables the remap allocator for use with DISCONTIG.

Without SRAT support, a compile-error occurs because ACPI table parsing
functions are only available in x86-64. This patch also adds no-op stubs
and prints a warning message. What likely needs to be done is sharing
the table parsing functions between 32 and 64 bit if they are
compatible.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/discontig_32.c | 93 ++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 78 insertions(+), 15 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/discontig_32.c b/arch/x86/mm/discontig_32.c
index 9f1d02cfde37..04b1d20e2613 100644
--- a/arch/x86/mm/discontig_32.c
+++ b/arch/x86/mm/discontig_32.c
@@ -32,6 +32,7 @@
 #include <linux/kexec.h>
 #include <linux/pfn.h>
 #include <linux/swap.h>
+#include <linux/acpi.h>
 
 #include <asm/e820.h>
 #include <asm/setup.h>
@@ -103,14 +104,10 @@ extern unsigned long highend_pfn, highstart_pfn;
 
 #define LARGE_PAGE_BYTES (PTRS_PER_PTE * PAGE_SIZE)
 
-static unsigned long node_remap_start_pfn[MAX_NUMNODES];
 unsigned long node_remap_size[MAX_NUMNODES];
-static unsigned long node_remap_offset[MAX_NUMNODES];
 static void *node_remap_start_vaddr[MAX_NUMNODES];
 void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags);
 
-static void *node_remap_end_vaddr[MAX_NUMNODES];
-static void *node_remap_alloc_vaddr[MAX_NUMNODES];
 static unsigned long kva_start_pfn;
 static unsigned long kva_pages;
 /*
@@ -167,6 +164,22 @@ static void __init allocate_pgdat(int nid)
 	}
 }
 
+#ifdef CONFIG_DISCONTIGMEM
+/*
+ * In the discontig memory model, a portion of the kernel virtual area (KVA)
+ * is reserved and portions of nodes are mapped using it. This is to allow
+ * node-local memory to be allocated for structures that would normally require
+ * ZONE_NORMAL. The memory is allocated with alloc_remap() and callers
+ * should be prepared to allocate from the bootmem allocator instead. This KVA
+ * mechanism is incompatible with SPARSEMEM as it makes assumptions about the
+ * layout of memory that are broken if alloc_remap() succeeds for some of the
+ * map and fails for others
+ */
+static unsigned long node_remap_start_pfn[MAX_NUMNODES];
+static void *node_remap_end_vaddr[MAX_NUMNODES];
+static void *node_remap_alloc_vaddr[MAX_NUMNODES];
+static unsigned long node_remap_offset[MAX_NUMNODES];
+
 void *alloc_remap(int nid, unsigned long size)
 {
 	void *allocation = node_remap_alloc_vaddr[nid];
@@ -263,6 +276,40 @@ static unsigned long calculate_numa_remap_pages(void)
 	return reserve_pages;
 }
 
+static void init_remap_allocator(int nid)
+{
+	node_remap_start_vaddr[nid] = pfn_to_kaddr(
+			kva_start_pfn + node_remap_offset[nid]);
+	node_remap_end_vaddr[nid] = node_remap_start_vaddr[nid] +
+		(node_remap_size[nid] * PAGE_SIZE);
+	node_remap_alloc_vaddr[nid] = node_remap_start_vaddr[nid] +
+		ALIGN(sizeof(pg_data_t), PAGE_SIZE);
+
+	printk ("node %d will remap to vaddr %08lx - %08lx\n", nid,
+		(ulong) node_remap_start_vaddr[nid],
+		(ulong) pfn_to_kaddr(highstart_pfn
+		   + node_remap_offset[nid] + node_remap_size[nid]));
+}
+#else
+void *alloc_remap(int nid, unsigned long size)
+{
+	return NULL;
+}
+
+static unsigned long calculate_numa_remap_pages(void)
+{
+	return 0;
+}
+
+static void init_remap_allocator(int nid)
+{
+}
+
+void __init remap_numa_kva(void)
+{
+}
+#endif /* CONFIG_DISCONTIGMEM */
+
 extern void setup_bootmem_allocator(void);
 unsigned long __init setup_memory(void)
 {
@@ -326,19 +373,9 @@ unsigned long __init setup_memory(void)
 	printk("Low memory ends at vaddr %08lx\n",
 			(ulong) pfn_to_kaddr(max_low_pfn));
 	for_each_online_node(nid) {
-		node_remap_start_vaddr[nid] = pfn_to_kaddr(
-				kva_start_pfn + node_remap_offset[nid]);
-		/* Init the node remap allocator */
-		node_remap_end_vaddr[nid] = node_remap_start_vaddr[nid] +
-			(node_remap_size[nid] * PAGE_SIZE);
-		node_remap_alloc_vaddr[nid] = node_remap_start_vaddr[nid] +
-			ALIGN(sizeof(pg_data_t), PAGE_SIZE);
+		init_remap_allocator(nid);
 
 		allocate_pgdat(nid);
-		printk ("node %d will remap to vaddr %08lx - %08lx\n", nid,
-			(ulong) node_remap_start_vaddr[nid],
-			(ulong) pfn_to_kaddr(highstart_pfn
-			   + node_remap_offset[nid] + node_remap_size[nid]));
 	}
 	printk("High memory starts at vaddr %08lx\n",
 			(ulong) pfn_to_kaddr(highstart_pfn));
@@ -439,3 +476,29 @@ int memory_add_physaddr_to_nid(u64 addr)
 
 EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
 #endif
+
+#ifndef CONFIG_HAVE_ARCH_PARSE_SRAT
+/*
+ * XXX FIXME: Make SLIT table parsing available to 32-bit NUMA
+ *
+ * These stub functions are needed to compile 32-bit NUMA when SRAT is
+ * not set. There are functions in srat_64.c for parsing this table
+ * and it may be possible to make them common functions.
+ */
+void acpi_numa_slit_init (struct acpi_table_slit *slit)
+{
+	printk(KERN_INFO "ACPI: No support for parsing SLIT table\n");
+}
+
+void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa)
+{
+}
+
+void acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma)
+{
+}
+
+void acpi_numa_arch_fixup(void)
+{
+}
+#endif /* CONFIG_HAVE_ARCH_PARSE_SRAT */
-- 
cgit v1.2.3-59-g8ed1b


From 409a7b859ddb6e0a615d9f3ccddedaec218c56b6 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mel@csn.ul.ie>
Date: Wed, 30 Jan 2008 13:33:25 +0100
Subject: x86: relax restrictions on setting CONFIG_NUMA on x86, #2

The FLATMEM memory model references a global mem_map and max_mapnr. This
is incompatible with how memory models used for NUMA view the world.
Builds fail if FLATMEM && NUMA are set on x86. This patch forbids that
combination of config items. This is consistent with x86_64
enforcements.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index dc80a9f1f303..2114b4c71fa0 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -871,7 +871,7 @@ config HAVE_ARCH_ALLOC_REMAP
 
 config ARCH_FLATMEM_ENABLE
 	def_bool y
-	depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && X86_PC
+	depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && X86_PC && !NUMA
 
 config ARCH_DISCONTIGMEM_ENABLE
 	def_bool y
-- 
cgit v1.2.3-59-g8ed1b


From 4323838215184f5a2f081e0d17b8d60731b03164 Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:25 +0100
Subject: x86: change size of node ids from u8 to s16

Change the size of node ids for X86_64 from u8 to s16 to
accomodate more than 32k nodes and allow for NUMA_NO_NODE
(-1) to be sign extended to int.

Cc: David Rientjes <rientjes@google.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig            |  1 +
 arch/x86/mm/numa_64.c       | 12 ++++++------
 include/asm-x86/mmzone_64.h |  6 +++---
 include/asm-x86/numa_64.h   |  2 +-
 include/asm-x86/topology.h  | 10 +++++-----
 5 files changed, 16 insertions(+), 15 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2114b4c71fa0..81af31e5a9f1 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -848,6 +848,7 @@ config NUMA_EMU
 
 config NODES_SHIFT
 	int
+	range 1 15  if X86_64
 	default "6" if X86_64
 	default "4" if X86_NUMAQ
 	default "3"
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 441af4edea59..0ca96d86cb71 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -31,15 +31,15 @@ bootmem_data_t plat_node_bdata[MAX_NUMNODES];
 
 struct memnode memnode;
 
-u16 x86_cpu_to_node_map_init[NR_CPUS] = {
+int x86_cpu_to_node_map_init[NR_CPUS] = {
 	[0 ... NR_CPUS-1] = NUMA_NO_NODE
 };
 void *x86_cpu_to_node_map_early_ptr;
-DEFINE_PER_CPU(u16, x86_cpu_to_node_map) = NUMA_NO_NODE;
+DEFINE_PER_CPU(int, x86_cpu_to_node_map) = NUMA_NO_NODE;
 EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map);
 EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr);
 
-u16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
+s16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
 	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
 };
 
@@ -63,7 +63,7 @@ static int __init populate_memnodemap(const struct bootnode *nodes,
 	unsigned long addr, end;
 	int i, res = -1;
 
-	memset(memnodemap, 0xff, memnodemapsize);
+	memset(memnodemap, 0xff, sizeof(s16)*memnodemapsize);
 	for (i = 0; i < numnodes; i++) {
 		addr = nodes[i].start;
 		end = nodes[i].end;
@@ -72,7 +72,7 @@ static int __init populate_memnodemap(const struct bootnode *nodes,
 		if ((end >> shift) >= memnodemapsize)
 			return 0;
 		do {
-			if (memnodemap[addr >> shift] != 0xff)
+			if (memnodemap[addr >> shift] != NUMA_NO_NODE)
 				return -1;
 			memnodemap[addr >> shift] = i;
 			addr += (1UL << shift);
@@ -533,7 +533,7 @@ __cpuinit void numa_add_cpu(int cpu)
 
 void __cpuinit numa_set_node(int cpu, int node)
 {
-	u16 *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
+	int *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
 
 	cpu_pda(cpu)->nodenumber = node;
 
diff --git a/include/asm-x86/mmzone_64.h b/include/asm-x86/mmzone_64.h
index b0c25ae111d9..ebaf9663aa8a 100644
--- a/include/asm-x86/mmzone_64.h
+++ b/include/asm-x86/mmzone_64.h
@@ -15,9 +15,9 @@
 struct memnode {
 	int shift;
 	unsigned int mapsize;
-	u8 *map;
-	u8 embedded_map[64-16];
-} ____cacheline_aligned; /* total size = 64 bytes */
+	s16 *map;
+	s16 embedded_map[64-8];
+} ____cacheline_aligned; /* total size = 128 bytes */
 extern struct memnode memnode;
 #define memnode_shift memnode.shift
 #define memnodemap memnode.map
diff --git a/include/asm-x86/numa_64.h b/include/asm-x86/numa_64.h
index c797cd523d2b..15fe07cde586 100644
--- a/include/asm-x86/numa_64.h
+++ b/include/asm-x86/numa_64.h
@@ -20,7 +20,7 @@ extern void numa_set_node(int cpu, int node);
 extern void srat_reserve_add_area(int nodeid);
 extern int hotadd_percent;
 
-extern u16 apicid_to_node[MAX_LOCAL_APIC];
+extern s16 apicid_to_node[MAX_LOCAL_APIC];
 
 extern void numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn);
 extern unsigned long numa_free_all_bootmem(void);
diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h
index 7b0cce2f370d..8af05a93f097 100644
--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -31,11 +31,11 @@
 
 /* Mappings between logical cpu number and node number */
 #ifdef CONFIG_X86_32
-extern u8 cpu_to_node_map[];
+extern int cpu_to_node_map[];
 
 #else
-DECLARE_PER_CPU(u16, x86_cpu_to_node_map);
-extern u16 x86_cpu_to_node_map_init[];
+DECLARE_PER_CPU(int, x86_cpu_to_node_map);
+extern int x86_cpu_to_node_map_init[];
 extern void *x86_cpu_to_node_map_early_ptr;
 /* Returns the number of the current Node. */
 #define numa_node_id()		(early_cpu_to_node(raw_smp_processor_id()))
@@ -43,7 +43,7 @@ extern void *x86_cpu_to_node_map_early_ptr;
 
 extern cpumask_t node_to_cpumask_map[];
 
-#define NUMA_NO_NODE	((u16)(~0))
+#define NUMA_NO_NODE	(-1)
 
 /* Returns the number of the node containing CPU 'cpu' */
 #ifdef CONFIG_X86_32
@@ -56,7 +56,7 @@ static inline int cpu_to_node(int cpu)
 #else /* CONFIG_X86_64 */
 static inline int early_cpu_to_node(int cpu)
 {
-	u16 *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
+	int *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
 
 	if (cpu_to_node_map)
 		return cpu_to_node_map[cpu];
-- 
cgit v1.2.3-59-g8ed1b


From 503595010f2024b236fd2636a7318fe64c794d6c Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Wed, 30 Jan 2008 13:33:27 +0100
Subject: x86_32: remove unnecessary use of %ebx as the boot cpu flag
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Currently in head_32.S there are two ways we test to see if we
are the boot cpu.  By looking at %ebx and by looking at the
static variable ready.  When changing things around I have
found that it gets tricky to preserve %ebx.  So this
patch just switches head.S over to the more reliable
test of always using ready.

Hopefully later we can kill these tests entirely.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Mika Penttilä <mika.penttila@kolumbus.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/head_32.S | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index f409fe2a52e4..7b9b2566b7a8 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -199,7 +199,6 @@ default_entry:
 	addl $0x67, %eax			/* 0x67 == _PAGE_TABLE */
 	movl %eax, 4092(%edx)
 
-	xorl %ebx,%ebx				/* This is the boot CPU (BSP) */
 	jmp 3f
 /*
  * Non-boot CPU entry point; entered from trampoline.S
@@ -268,10 +267,6 @@ ENTRY(startup_32_smp)
 	wrmsr
 
 6:
-	/* This is a secondary processor (AP) */
-	xorl %ebx,%ebx
-	incl %ebx
-
 #endif /* CONFIG_SMP */
 3:
 
@@ -297,7 +292,7 @@ ENTRY(startup_32_smp)
 	popfl
 
 #ifdef CONFIG_SMP
-	andl %ebx,%ebx
+	cmpb $0, ready
 	jz  1f				/* Initial CPU cleans BSS */
 	jmp checkCPUtype
 1:
-- 
cgit v1.2.3-59-g8ed1b


From 5756dd59f118daacd68ee971a2381360ef769c48 Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Wed, 30 Jan 2008 13:33:27 +0100
Subject: x86_32: always run the full set of paging state.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

I am preparing to convert the boot time page table to the kernels
native format.  To achieve that I need to enable PAE. Enabling PSE
and the no execute bit would not hurt.  So this patch modifies
the boot cpu path to execute all of the kernels enable code
if and only if we have the proper bits set in mmu_cr4_features.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Mika Penttilä <mika.penttila@kolumbus.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/head_32.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 7b9b2566b7a8..a2b6331434da 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -221,6 +221,8 @@ ENTRY(startup_32_smp)
 	movl %eax,%es
 	movl %eax,%fs
 	movl %eax,%gs
+#endif /* CONFIG_SMP */
+3:
 
 /*
  *	New page tables may be in 4Mbyte page mode and may
@@ -267,8 +269,6 @@ ENTRY(startup_32_smp)
 	wrmsr
 
 6:
-#endif /* CONFIG_SMP */
-3:
 
 /*
  * Enable paging
-- 
cgit v1.2.3-59-g8ed1b


From 8b2f7ffffe7f247ba237322fee78c528ba88f16b Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:33:28 +0100
Subject: x86: fix Section mismatch: reference to .init.text:lguest_entry

fix:

> WARNING: vmlinux.o(.data+0x4): Section mismatch: reference to .init.text:lguest_entry (between 'subarch_entries' and 'stack_start')

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/head_32.S | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index a2b6331434da..5d8c5730686b 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -9,6 +9,7 @@
 
 .text
 #include <linux/threads.h>
+#include <linux/init.h>
 #include <linux/linkage.h>
 #include <asm/segment.h>
 #include <asm/page.h>
@@ -151,7 +152,9 @@ WEAK(xen_entry)
 	/* Unknown implementation; there's really
 	   nothing we can do at this point. */
 	ud2a
-.data
+
+	__INITDATA
+
 subarch_entries:
 	.long default_entry		/* normal x86/PC */
 	.long lguest_entry		/* lguest hypervisor */
-- 
cgit v1.2.3-59-g8ed1b


From 1bdbdaacf774f2979ed4cb0c4a4316c9e578c897 Mon Sep 17 00:00:00 2001
From: Bernhard Walle <bwalle@suse.de>
Date: Wed, 30 Jan 2008 13:33:28 +0100
Subject: x86, rtc: make CONFIG_HPET_EMULATE_RTC usable from modules

enabled, then interrupts don't work for the rtc-cmos driver which results in
RTC_AIE*, RTC_PIE* and RTC_ALM being unusable.  This affects hwclock from
util-linux-ng at least on i386 since that uses RTC_PIE_ON.  (For x86-64, a
polling method is used for unknown reasons.)

This patch series now

  1. export the functions from arch/x86/kernel/hpet.c that the old char/rtc
     driver uses to work around that problem,

  2. makes it possible to compile the old rtc driver as module, while still
     having CONFIG_HPET_EMULATE_RTC enabled and

  3. makes use of the exported functions in (1) in the new rtc-cmos driver.

This patch:

This patch makes the RTC emulation functions in arch/x86/kernel/hpet.c usable
for kernel modules. It

  - exports the functions (EXPORT_SYMBOL_GPL()),
  - adds an interface to register the interrupt callback function
    instead of using only a fixed callback function and
  - replaces the rtc_get_rtc_time() function which depends on
    CONFIG_RTC with a call to get_rtc_time() which is defined in
    include/asm-generic/rtc.h.

The only dependency to CONFIG_RTC is the call to rtc_interrupt() which is
removed by the next patch. After this, there's no (code) dependency of
this functions to CONFIG_RTC=y any more.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Cc: Andi Kleen <ak@suse.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Robert Picco <Robert.Picco@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/hpet.c | 47 ++++++++++++++++++++++++++++++++++++++++++++++-
 include/asm-x86/hpet.h |  3 +++
 2 files changed, 49 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 5c1702789be4..d65ced59a18f 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -107,6 +107,7 @@ int is_hpet_enabled(void)
 {
 	return is_hpet_capable() && hpet_legacy_int_enabled;
 }
+EXPORT_SYMBOL_GPL(is_hpet_enabled);
 
 /*
  * When the hpet driver (/dev/hpet) is enabled, we need to reserve
@@ -475,6 +476,7 @@ void hpet_disable(void)
  */
 #include <linux/mc146818rtc.h>
 #include <linux/rtc.h>
+#include <asm/rtc.h>
 
 #define DEFAULT_RTC_INT_FREQ	64
 #define DEFAULT_RTC_SHIFT	6
@@ -489,6 +491,38 @@ static unsigned long hpet_default_delta;
 static unsigned long hpet_pie_delta;
 static unsigned long hpet_pie_limit;
 
+static rtc_irq_handler irq_handler;
+
+/*
+ * Registers a IRQ handler.
+ */
+int hpet_register_irq_handler(rtc_irq_handler handler)
+{
+	if (!is_hpet_enabled())
+		return -ENODEV;
+	if (irq_handler)
+		return -EBUSY;
+
+	irq_handler = handler;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(hpet_register_irq_handler);
+
+/*
+ * Deregisters the IRQ handler registered with hpet_register_irq_handler()
+ * and does cleanup.
+ */
+void hpet_unregister_irq_handler(rtc_irq_handler handler)
+{
+	if (!is_hpet_enabled())
+		return;
+
+	irq_handler = NULL;
+	hpet_rtc_flags = 0;
+}
+EXPORT_SYMBOL_GPL(hpet_unregister_irq_handler);
+
 /*
  * Timer 1 for RTC emulation. We use one shot mode, as periodic mode
  * is not supported by all HPET implementations for timer 1.
@@ -530,6 +564,7 @@ int hpet_rtc_timer_init(void)
 
 	return 1;
 }
+EXPORT_SYMBOL_GPL(hpet_rtc_timer_init);
 
 /*
  * The functions below are called from rtc driver.
@@ -544,6 +579,7 @@ int hpet_mask_rtc_irq_bit(unsigned long bit_mask)
 	hpet_rtc_flags &= ~bit_mask;
 	return 1;
 }
+EXPORT_SYMBOL_GPL(hpet_mask_rtc_irq_bit);
 
 int hpet_set_rtc_irq_bit(unsigned long bit_mask)
 {
@@ -559,6 +595,7 @@ int hpet_set_rtc_irq_bit(unsigned long bit_mask)
 
 	return 1;
 }
+EXPORT_SYMBOL_GPL(hpet_set_rtc_irq_bit);
 
 int hpet_set_alarm_time(unsigned char hrs, unsigned char min,
 			unsigned char sec)
@@ -572,6 +609,7 @@ int hpet_set_alarm_time(unsigned char hrs, unsigned char min,
 
 	return 1;
 }
+EXPORT_SYMBOL_GPL(hpet_set_alarm_time);
 
 int hpet_set_periodic_freq(unsigned long freq)
 {
@@ -590,11 +628,13 @@ int hpet_set_periodic_freq(unsigned long freq)
 	}
 	return 1;
 }
+EXPORT_SYMBOL_GPL(hpet_set_periodic_freq);
 
 int hpet_rtc_dropped_irq(void)
 {
 	return is_hpet_enabled();
 }
+EXPORT_SYMBOL_GPL(hpet_rtc_dropped_irq);
 
 static void hpet_rtc_timer_reinit(void)
 {
@@ -638,9 +678,10 @@ irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
 	unsigned long rtc_int_flag = 0;
 
 	hpet_rtc_timer_reinit();
+	memset(&curr_time, 0, sizeof(struct rtc_time));
 
 	if (hpet_rtc_flags & (RTC_UIE | RTC_AIE))
-		rtc_get_rtc_time(&curr_time);
+		get_rtc_time(&curr_time);
 
 	if (hpet_rtc_flags & RTC_UIE &&
 	    curr_time.tm_sec != hpet_prev_update_sec) {
@@ -662,8 +703,12 @@ irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
 
 	if (rtc_int_flag) {
 		rtc_int_flag |= (RTC_IRQF | (RTC_NUM_INTS << 8));
+		if (irq_handler)
+			irq_handler(rtc_int_flag, dev_id);
+
 		rtc_interrupt(rtc_int_flag, dev_id);
 	}
 	return IRQ_HANDLED;
 }
+EXPORT_SYMBOL_GPL(hpet_rtc_interrupt);
 #endif
diff --git a/include/asm-x86/hpet.h b/include/asm-x86/hpet.h
index 624f600f7161..6a9b4ac59bf7 100644
--- a/include/asm-x86/hpet.h
+++ b/include/asm-x86/hpet.h
@@ -69,6 +69,7 @@ extern void force_hpet_resume(void);
 
 #include <linux/interrupt.h>
 
+typedef irqreturn_t (*rtc_irq_handler)(int interrupt, void *cookie);
 extern int hpet_mask_rtc_irq_bit(unsigned long bit_mask);
 extern int hpet_set_rtc_irq_bit(unsigned long bit_mask);
 extern int hpet_set_alarm_time(unsigned char hrs, unsigned char min,
@@ -77,6 +78,8 @@ extern int hpet_set_periodic_freq(unsigned long freq);
 extern int hpet_rtc_dropped_irq(void);
 extern int hpet_rtc_timer_init(void);
 extern irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id);
+extern int hpet_register_irq_handler(rtc_irq_handler handler);
+extern void hpet_unregister_irq_handler(rtc_irq_handler handler);
 
 #endif /* CONFIG_HPET_EMULATE_RTC */
 
-- 
cgit v1.2.3-59-g8ed1b


From f8f76481bc2803aea03ff213c7e1405b53f7e488 Mon Sep 17 00:00:00 2001
From: Bernhard Walle <bwalle@suse.de>
Date: Wed, 30 Jan 2008 13:33:31 +0100
Subject: rtc: use the IRQ callback interface in (old) RTC driver

the previous patch in the old RTC driver.  It also removes the direct
rtc_interrupt() call from arch/x86/kernel/hpetc.c so that there's finally no
(code) dependency to CONFIG_RTC in arch/x86/kernel/hpet.c.

Because of this, it's possible to compile the drivers/char/rtc.ko driver as
module and still use the HPET emulation functionality.  This is also expressed
in Kconfig.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Cc: Andi Kleen <ak@suse.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Robert Picco <Robert.Picco@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig       |  2 +-
 arch/x86/kernel/hpet.c |  2 --
 drivers/char/rtc.c     | 15 ++++++++++++++-
 3 files changed, 15 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 81af31e5a9f1..4e911d0a4962 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -390,7 +390,7 @@ config HPET_TIMER
 
 config HPET_EMULATE_RTC
 	def_bool y
-	depends on HPET_TIMER && RTC=y
+	depends on HPET_TIMER && (RTC=y || RTC=m)
 
 # Mark as embedded because too many people got it wrong.
 # The code disables itself when not needed.
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index d65ced59a18f..429d084e014d 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -705,8 +705,6 @@ irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
 		rtc_int_flag |= (RTC_IRQF | (RTC_NUM_INTS << 8));
 		if (irq_handler)
 			irq_handler(rtc_int_flag, dev_id);
-
-		rtc_interrupt(rtc_int_flag, dev_id);
 	}
 	return IRQ_HANDLED;
 }
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index 3ac7952fe086..78b151c4d20f 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -110,6 +110,8 @@ static int rtc_has_irq = 1;
 #define hpet_set_rtc_irq_bit(arg)		0
 #define hpet_rtc_timer_init()			do { } while (0)
 #define hpet_rtc_dropped_irq()			0
+#define hpet_register_irq_handler(h)		0
+#define hpet_unregister_irq_handler(h)		0
 #ifdef RTC_IRQ
 static irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
 {
@@ -1027,7 +1029,15 @@ no_irq:
 
 #ifdef RTC_IRQ
 	if (is_hpet_enabled()) {
+		int err;
+
 		rtc_int_handler_ptr = hpet_rtc_interrupt;
+		err = hpet_register_irq_handler(rtc_interrupt);
+		if (err != 0) {
+			printk(KERN_WARNING "hpet_register_irq_handler failed "
+					"in rtc_init().");
+			return err;
+		}
 	} else {
 		rtc_int_handler_ptr = rtc_interrupt;
 	}
@@ -1050,6 +1060,7 @@ no_irq:
 	if (misc_register(&rtc_dev)) {
 #ifdef RTC_IRQ
 		free_irq(RTC_IRQ, NULL);
+		hpet_unregister_irq_handler(rtc_interrupt);
 		rtc_has_irq = 0;
 #endif
 		rtc_release_region();
@@ -1141,8 +1152,10 @@ static void __exit rtc_exit(void)
 #else
 	rtc_release_region();
 #ifdef RTC_IRQ
-	if (rtc_has_irq)
+	if (rtc_has_irq) {
 		free_irq(RTC_IRQ, NULL);
+		hpet_unregister_irq_handler(hpet_rtc_interrupt);
+	}
 #endif
 #endif /* CONFIG_SPARC32 */
 }
-- 
cgit v1.2.3-59-g8ed1b


From e61bd94a36a9f2c394d75ebe3614fe0a612bcf2d Mon Sep 17 00:00:00 2001
From: Eduardo Pereira Habkost <ehabkost@redhat.com>
Date: Wed, 30 Jan 2008 13:33:32 +0100
Subject: x86: allow enabling PARAVIRT without any guest implementation

This will allow people to enable the paravirt_ops code even when no
guest support is enabled, for broader testing of the paravirt_ops code.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4e911d0a4962..5e0cde8294c9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -310,15 +310,6 @@ config SCHED_NO_NO_OMIT_FRAME_POINTER
 
 	  If in doubt, say "Y".
 
-config PARAVIRT
-	bool
-	depends on X86_32 && !(X86_VISWS || X86_VOYAGER)
-	help
-	  This changes the kernel so it can modify itself when it is run
-	  under a hypervisor, potentially improving performance significantly
-	  over full virtualization.  However, when run without a hypervisor
-	  the kernel is theoretically slower and slightly larger.
-
 menuconfig PARAVIRT_GUEST
 	bool "Paravirtualized guest support"
 	depends on X86_32
@@ -344,6 +335,15 @@ config VMI
 
 source "arch/x86/lguest/Kconfig"
 
+config PARAVIRT
+	bool "Enable paravirtualization code"
+	depends on X86_32 && !(X86_VISWS || X86_VOYAGER)
+	help
+	  This changes the kernel so it can modify itself when it is run
+	  under a hypervisor, potentially improving performance significantly
+	  over full virtualization.  However, when run without a hypervisor
+	  the kernel is theoretically slower and slightly larger.
+
 endif
 
 config ACPI_SRAT
-- 
cgit v1.2.3-59-g8ed1b


From 42d545c9a4c0d3faeab658a40165c3da2dda91b2 Mon Sep 17 00:00:00 2001
From: Eduardo Pereira Habkost <ehabkost@redhat.com>
Date: Wed, 30 Jan 2008 13:33:32 +0100
Subject: x86: remove depends on X86_32 from PARAVIRT & PARAVIRT_GUEST

With this, the paravirt_ops code can be enabled on x86_64 also.

Each guest implementation (Xen, VMI, lguest) now depends on X86_32. The
dependencies can be dropped for each one when they start to support
x86_64.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig        | 4 ++--
 arch/x86/lguest/Kconfig | 1 +
 arch/x86/xen/Kconfig    | 1 +
 3 files changed, 4 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5e0cde8294c9..f0887d12a5bb 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -312,7 +312,6 @@ config SCHED_NO_NO_OMIT_FRAME_POINTER
 
 menuconfig PARAVIRT_GUEST
 	bool "Paravirtualized guest support"
-	depends on X86_32
 	help
 	  Say Y here to get to see options related to running Linux under
 	  various hypervisors.  This option alone does not add any kernel code.
@@ -326,6 +325,7 @@ source "arch/x86/xen/Kconfig"
 config VMI
 	bool "VMI Guest support"
 	select PARAVIRT
+	depends on X86_32
 	depends on !(X86_VISWS || X86_VOYAGER)
 	help
 	  VMI provides a paravirtualized interface to the VMware ESX server
@@ -337,7 +337,7 @@ source "arch/x86/lguest/Kconfig"
 
 config PARAVIRT
 	bool "Enable paravirtualization code"
-	depends on X86_32 && !(X86_VISWS || X86_VOYAGER)
+	depends on !(X86_VISWS || X86_VOYAGER)
 	help
 	  This changes the kernel so it can modify itself when it is run
 	  under a hypervisor, potentially improving performance significantly
diff --git a/arch/x86/lguest/Kconfig b/arch/x86/lguest/Kconfig
index 19626ace0f50..964dfa36d367 100644
--- a/arch/x86/lguest/Kconfig
+++ b/arch/x86/lguest/Kconfig
@@ -1,6 +1,7 @@
 config LGUEST_GUEST
 	bool "Lguest guest support"
 	select PARAVIRT
+	depends on X86_32
 	depends on !X86_PAE
 	depends on !(X86_VISWS || X86_VOYAGER)
 	select VIRTIO
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index fbfa55ce0d55..4d5f2649bee4 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -5,6 +5,7 @@
 config XEN
 	bool "Xen guest support"
 	select PARAVIRT
+	depends on X86_32
 	depends on X86_CMPXCHG && X86_TSC && !NEED_MULTIPLE_NODES && !(X86_VISWS || X86_VOYAGER)
 	help
 	  This is the Linux Xen port.  Enabling this will allow the
-- 
cgit v1.2.3-59-g8ed1b


From 8a45eb31d832af5441703bf447c97f786ff850a4 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@computergmbh.de>
Date: Wed, 30 Jan 2008 13:33:32 +0100
Subject: x86: constify function pointer tables

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/proc.c | 2 +-
 arch/x86/kernel/setup_64.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c
index 3900e46d66db..028213260148 100644
--- a/arch/x86/kernel/cpu/proc.c
+++ b/arch/x86/kernel/cpu/proc.c
@@ -188,7 +188,7 @@ static void *c_next(struct seq_file *m, void *v, loff_t *pos)
 static void c_stop(struct seq_file *m, void *v)
 {
 }
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
 	.start	= c_start,
 	.next	= c_next,
 	.stop	= c_stop,
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index f84e2662f1ca..116687ade180 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -1251,7 +1251,7 @@ static void c_stop(struct seq_file *m, void *v)
 {
 }
 
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
 	.start = c_start,
 	.next =	c_next,
 	.stop =	c_stop,
-- 
cgit v1.2.3-59-g8ed1b


From 11201e603d28a1cb7a4bb1d65f39e61629c97a28 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:32 +0100
Subject: x86: fix DEBUG_RODATA kconfig text

fix kconfig text and make DEBUG_RODATA default.

this helps debugging quite a bit.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.debug | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 0a82b889d76e..9bb61e1aed69 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -61,13 +61,13 @@ config DEBUG_PER_CPU_MAPS
 
 config DEBUG_RODATA
 	bool "Write protect kernel read-only data structures"
+	default y
 	depends on DEBUG_KERNEL
 	help
 	  Mark the kernel read-only data as write-protected in the pagetables,
 	  in order to catch accidental (and incorrect) writes to such const
-	  data. This option may have a slight performance impact because a
-	  portion of the kernel code won't be covered by a 2MB TLB anymore.
-	  If in doubt, say "N".
+	  data. This is recommended so that we can catch kernel bugs sooner.
+	  If in doubt, say "Y".
 
 config 4KSTACKS
 	bool "Use 4Kb for kernel stacks instead of 8Kb"
-- 
cgit v1.2.3-59-g8ed1b


From 093af8d7f0ba3c6be1485973508584ef081e9f93 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:33:32 +0100
Subject: x86_32: trim memory by updating e820

when MTRRs are not covering the whole e820 table, we need to trim the
RAM and need to update e820.

reuse some code on 64-bit as well.

here need to add early_get_cap and use it in early_cpu_detect, and move
mtrr_bp_init early.

The code successfully trimmed the memory map on Justin's system:

from:

 [    0.000000]  BIOS-e820: 0000000100000000 - 000000022c000000 (usable)

to:

 [    0.000000]   modified: 0000000100000000 - 0000000228000000 (usable)
 [    0.000000]   modified: 0000000228000000 - 000000022c000000 (reserved)

According to Justin it makes quite a difference:

|  When I boot the box without any trimming it acts like a 286 or 386,
|  takes about 10 minutes to boot (using raptor disks).

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Tested-by: Justin Piszcz <jpiszcz@lucidpixels.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/kernel-parameters.txt |  2 +-
 arch/x86/kernel/cpu/common.c        | 30 +++++++++++++++++++++++++++++-
 arch/x86/kernel/cpu/mtrr/main.c     | 22 ++++++++++++++--------
 arch/x86/kernel/e820_32.c           | 11 +++++++++++
 arch/x86/kernel/setup_32.c          |  6 ++++++
 include/asm-x86/e820_32.h           |  3 +++
 6 files changed, 64 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 50d564dabb13..fe3031d56431 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -583,7 +583,7 @@ and is between 256 and 4096 characters. It is defined in the file
 			See drivers/char/README.epca and
 			Documentation/digiepca.txt.
 
-	disable_mtrr_trim [X86-64, Intel only]
+	disable_mtrr_trim [X86, Intel and AMD only]
 			By default the kernel will trim any uncacheable
 			memory out of your available memory pool based on
 			MTRR settings.  This parameter disables that behavior,
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 56cc341cc586..bba850b05d0e 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -278,6 +278,33 @@ void __init cpu_detect(struct cpuinfo_x86 *c)
 			c->x86_cache_alignment = ((misc >> 8) & 0xff) * 8;
 	}
 }
+static void __cpuinit early_get_cap(struct cpuinfo_x86 *c)
+{
+	u32 tfms, xlvl;
+	int ebx;
+
+	memset(&c->x86_capability, 0, sizeof c->x86_capability);
+	if (have_cpuid_p()) {
+		/* Intel-defined flags: level 0x00000001 */
+		if (c->cpuid_level >= 0x00000001) {
+			u32 capability, excap;
+			cpuid(0x00000001, &tfms, &ebx, &excap, &capability);
+			c->x86_capability[0] = capability;
+			c->x86_capability[4] = excap;
+		}
+
+		/* AMD-defined flags: level 0x80000001 */
+		xlvl = cpuid_eax(0x80000000);
+		if ((xlvl & 0xffff0000) == 0x80000000) {
+			if (xlvl >= 0x80000001) {
+				c->x86_capability[1] = cpuid_edx(0x80000001);
+				c->x86_capability[6] = cpuid_ecx(0x80000001);
+			}
+		}
+
+	}
+
+}
 
 /* Do minimum CPU detection early.
    Fields really needed: vendor, cpuid_level, family, model, mask, cache alignment.
@@ -306,6 +333,8 @@ static void __init early_cpu_detect(void)
 		early_init_intel(c);
 		break;
 	}
+
+	early_get_cap(c);
 }
 
 static void __cpuinit generic_identify(struct cpuinfo_x86 * c)
@@ -485,7 +514,6 @@ void __init identify_boot_cpu(void)
 	identify_cpu(&boot_cpu_data);
 	sysenter_setup();
 	enable_sep_cpu();
-	mtrr_bp_init();
 }
 
 void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c)
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index ccd36ed2187b..ac4b6338f3f4 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -624,7 +624,6 @@ static struct sysdev_driver mtrr_sysdev_driver = {
 	.resume		= mtrr_restore,
 };
 
-#ifdef CONFIG_X86_64
 static int disable_mtrr_trim;
 
 static int __init disable_mtrr_trim_setup(char *str)
@@ -643,13 +642,10 @@ early_param("disable_mtrr_trim", disable_mtrr_trim_setup);
 #define Tom2Enabled (1U << 21)
 #define Tom2ForceMemTypeWB (1U << 22)
 
-static __init int amd_special_default_mtrr(unsigned long end_pfn)
+static __init int amd_special_default_mtrr(void)
 {
 	u32 l, h;
 
-	/* Doesn't apply to memory < 4GB */
-	if (end_pfn <= (0xffffffff >> PAGE_SHIFT))
-		return 0;
 	if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD)
 		return 0;
 	if (boot_cpu_data.x86 < 0xf || boot_cpu_data.x86 > 0x11)
@@ -687,9 +683,14 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
 	 * Make sure we only trim uncachable memory on machines that
 	 * support the Intel MTRR architecture:
 	 */
+	if (!is_cpu(INTEL) || disable_mtrr_trim)
+		return 0;
 	rdmsr(MTRRdefType_MSR, def, dummy);
 	def &= 0xff;
-	if (!is_cpu(INTEL) || disable_mtrr_trim || def != MTRR_TYPE_UNCACHABLE)
+	if (def != MTRR_TYPE_UNCACHABLE)
+		return 0;
+
+	if (amd_special_default_mtrr())
 		return 0;
 
 	/* Find highest cached pfn */
@@ -703,8 +704,14 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
 			highest_addr = base + size;
 	}
 
-	if (amd_special_default_mtrr(end_pfn))
+	/* kvm/qemu doesn't have mtrr set right, don't trim them all */
+	if (!highest_addr) {
+		printk(KERN_WARNING "***************\n");
+		printk(KERN_WARNING "**** WARNING: likely strange cpu\n");
+		printk(KERN_WARNING "**** MTRRs all blank, cpu in qemu?\n");
+		printk(KERN_WARNING "***************\n");
 		return 0;
+	}
 
 	if ((highest_addr >> PAGE_SHIFT) < end_pfn) {
 		printk(KERN_WARNING "***************\n");
@@ -726,7 +733,6 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
 
 	return 0;
 }
-#endif
 
 /**
  * mtrr_bp_init - initialize mtrrs on the boot CPU
diff --git a/arch/x86/kernel/e820_32.c b/arch/x86/kernel/e820_32.c
index 931934a7b353..4e16ef4a2659 100644
--- a/arch/x86/kernel/e820_32.c
+++ b/arch/x86/kernel/e820_32.c
@@ -749,3 +749,14 @@ static int __init parse_memmap(char *arg)
 	return 0;
 }
 early_param("memmap", parse_memmap);
+void __init update_e820(void)
+{
+	u8 nr_map;
+
+	nr_map = e820.nr_map;
+	if (sanitize_e820_map(e820.map, &nr_map))
+		return;
+	e820.nr_map = nr_map;
+	printk(KERN_INFO "modified physical RAM map:\n");
+	print_memory_map("modified");
+}
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 26a56f714d34..83ba3ca5f431 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -48,6 +48,7 @@
 
 #include <video/edid.h>
 
+#include <asm/mtrr.h>
 #include <asm/apic.h>
 #include <asm/e820.h>
 #include <asm/mpspec.h>
@@ -758,6 +759,11 @@ void __init setup_arch(char **cmdline_p)
 
 	max_low_pfn = setup_memory();
 
+	/* update e820 for memory not covered by WB MTRRs */
+	mtrr_bp_init();
+	if (mtrr_trim_uncached_memory(max_pfn))
+		max_low_pfn = setup_memory();
+
 #ifdef CONFIG_VMI
 	/*
 	 * Must be after max_low_pfn is determined, and before kernel
diff --git a/include/asm-x86/e820_32.h b/include/asm-x86/e820_32.h
index e2faf5f3a0bb..f1da7ebd1905 100644
--- a/include/asm-x86/e820_32.h
+++ b/include/asm-x86/e820_32.h
@@ -19,12 +19,15 @@
 #ifndef __ASSEMBLY__
 
 extern struct e820map e820;
+extern void update_e820(void);
 
 extern int e820_all_mapped(unsigned long start, unsigned long end,
 			   unsigned type);
 extern int e820_any_mapped(u64 start, u64 end, unsigned type);
 extern void find_max_pfn(void);
 extern void register_bootmem_low_pages(unsigned long max_low_pfn);
+extern void add_memory_region(unsigned long long start,
+			      unsigned long long size, int type);
 extern void e820_register_memory(void);
 extern void limit_regions(unsigned long long size);
 extern void print_memory_map(char *who);
-- 
cgit v1.2.3-59-g8ed1b


From dd5af90a7f3d79e04b7eace9a98644dbf2038f4d Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:32 +0100
Subject: x86/non-x86: percpu, node ids, apic ids x86.git fixup

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig             |  2 +-
 include/asm-generic/percpu.h | 12 ++----------
 init/main.c                  |  4 ++--
 kernel/module.c              |  8 ++++++++
 4 files changed, 13 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f0887d12a5bb..8e1b33c5405f 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -97,7 +97,7 @@ config GENERIC_TIME_VSYSCALL
 	bool
 	default X86_64
 
-config ARCH_SETS_UP_PER_CPU_AREA
+config HAVE_SETUP_PER_CPU_AREA
 	def_bool X86_64
 
 config ARCH_SUPPORTS_OPROFILE
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index c41b1a731129..4b8d31cda1a0 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -47,7 +47,7 @@ extern unsigned long __per_cpu_offset[NR_CPUS];
 #endif
 
 /*
- * A percpu variable may point to a discarded reghions. The following are
+ * A percpu variable may point to a discarded regions. The following are
  * established ways to produce a usable pointer from the percpu variable
  * offset.
  */
@@ -59,18 +59,10 @@ extern unsigned long __per_cpu_offset[NR_CPUS];
 	(*SHIFT_PERCPU_PTR(&per_cpu_var(var), __my_cpu_offset))
 
 
-#ifdef CONFIG_ARCH_SETS_UP_PER_CPU_AREA
+#ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA
 extern void setup_per_cpu_areas(void);
 #endif
 
-/* A macro to avoid #include hell... */
-#define percpu_modcopy(pcpudst, src, size)			\
-do {								\
-	unsigned int __i;					\
-	for_each_possible_cpu(__i)				\
-		memcpy((pcpudst)+per_cpu_offset(__i),		\
-		       (src), (size));				\
-} while (0)
 #else /* ! SMP */
 
 #define per_cpu(var, cpu)			(*((void)(cpu), &per_cpu_var(var)))
diff --git a/init/main.c b/init/main.c
index 5843fe996703..3316dffe3e57 100644
--- a/init/main.c
+++ b/init/main.c
@@ -363,7 +363,7 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { }
 
 #else
 
-#ifndef CONFIG_ARCH_SETS_UP_PER_CPU_AREA
+#ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
 unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
 
 EXPORT_SYMBOL(__per_cpu_offset);
@@ -384,7 +384,7 @@ static void __init setup_per_cpu_areas(void)
 		ptr += size;
 	}
 }
-#endif /* CONFIG_ARCH_SETS_UP_CPU_AREA */
+#endif /* CONFIG_HAVE_SETUP_PER_CPU_AREA */
 
 /* Called by boot processor to activate the rest. */
 static void __init smp_init(void)
diff --git a/kernel/module.c b/kernel/module.c
index f6a4e721fd49..bd60278ee703 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -430,6 +430,14 @@ static unsigned int find_pcpusec(Elf_Ehdr *hdr,
 	return find_sec(hdr, sechdrs, secstrings, ".data.percpu");
 }
 
+static void percpu_modcopy(void *pcpudest, const void *from, unsigned long size)
+{
+	int cpu;
+
+	for_each_possible_cpu(cpu)
+		memcpy(pcpudest + per_cpu_offset(cpu), from, size);
+}
+
 static int percpu_modinit(void)
 {
 	pcpu_num_used = 2;
-- 
cgit v1.2.3-59-g8ed1b


From ac629a98bf98bfe66bf0a674b22be3474ee6a9a4 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:33:33 +0100
Subject: x86: remove duplicated line about

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 116687ade180..fe47807cac00 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -338,7 +338,6 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_NUMA
 	x86_cpu_to_node_map_early_ptr = (void *)&x86_cpu_to_node_map_init;
 #endif
-	x86_bios_cpu_apicid_early_ptr = (void *)&x86_bios_cpu_apicid_init;
 #endif
 
 #ifdef CONFIG_ACPI
-- 
cgit v1.2.3-59-g8ed1b


From 3effef1f3bbc2a63cc79c9eda789642ac06067b3 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:33:33 +0100
Subject: x86: should use array directly for early_ptr

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index fe47807cac00..0d20ed7fb097 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -333,10 +333,10 @@ void __init setup_arch(char **cmdline_p)
 
 #ifdef CONFIG_SMP
 	/* setup to use the early static init tables during kernel startup */
-	x86_cpu_to_apicid_early_ptr = (void *)&x86_cpu_to_apicid_init;
-	x86_bios_cpu_apicid_early_ptr = (void *)&x86_bios_cpu_apicid_init;
+	x86_cpu_to_apicid_early_ptr = (void *)x86_cpu_to_apicid_init;
+	x86_bios_cpu_apicid_early_ptr = (void *)x86_bios_cpu_apicid_init;
 #ifdef CONFIG_NUMA
-	x86_cpu_to_node_map_early_ptr = (void *)&x86_cpu_to_node_map_init;
+	x86_cpu_to_node_map_early_ptr = (void *)x86_cpu_to_node_map_init;
 #endif
 #endif
 
-- 
cgit v1.2.3-59-g8ed1b


From 85e2aeea80b453800c19e7713d85c8f91ed97b5b Mon Sep 17 00:00:00 2001
From: Cyrill Gorcunov <gorcunov@gmail.com>
Date: Wed, 30 Jan 2008 13:33:33 +0100
Subject: x86: use KSYM_NAME_LEN

Use KSYM_NAME_LEN instead of numeric value

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/traps_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 4ea727869ded..efc66df728b6 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -107,7 +107,7 @@ void printk_address(unsigned long address, int reliable)
 	const char *symname;
 	char *modname;
 	char *delim = ":";
-	char namebuf[128];
+	char namebuf[KSYM_NAME_LEN];
 	char reliab[4] = "";
 
 	symname = kallsyms_lookup(address, &symsize, &offset,
-- 
cgit v1.2.3-59-g8ed1b


From 45078cb5e2fb5a0e55c373755ed45b43d901f9e4 Mon Sep 17 00:00:00 2001
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Date: Wed, 30 Jan 2008 13:33:33 +0100
Subject: x86: remove struct cpu_model_info

No one uses struct cpu_model_info on x86_64 now.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c | 6 ------
 1 file changed, 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 0d20ed7fb097..9ee2bc30d530 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -869,12 +869,6 @@ static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c)
 		c->x86_vendor = X86_VENDOR_UNKNOWN;
 }
 
-struct cpu_model_info {
-	int vendor;
-	int family;
-	char *model_names[16];
-};
-
 /* Do some early cpuid on the boot CPU to get some parameter that are
    needed before check_bugs. Everything advanced is in identify_cpu
    below. */
-- 
cgit v1.2.3-59-g8ed1b


From e6c4dc6c36b01d33a2e0c8a89828d8dd44fb4c1b Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@1wt.eu>
Date: Wed, 30 Jan 2008 13:33:33 +0100
Subject: x86: GEODE add the "mfgptfix" boot time option to fix MFGPT timers

The new "mfgptfix" boot command line option may be usd to fix MFGPT
timers on AMD Geode platforms when the BIOS has incorrectly applied
a workaround. TinyBIOS version 0.98 is known to be affected, 0.99
fixes the problem by letting the user disable the workaround.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/kernel-parameters.txt |  5 +++++
 arch/x86/kernel/mfgpt_32.c          | 15 +++++++++++++++
 2 files changed, 20 insertions(+)

(limited to 'arch')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index fe3031d56431..5d171b7b8393 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1092,6 +1092,11 @@ and is between 256 and 4096 characters. It is defined in the file
 			Multi-Function General Purpose Timers on AMD Geode
 			platforms.
 
+	mfgptfix	[X86-32] Fix MFGPT timers on AMD Geode platforms when
+			the BIOS has incorrectly applied a workaround. TinyBIOS
+			version 0.98 is known to be affected, 0.99 fixes the
+			problem by letting the user disable the workaround.
+
 	mga=		[HW,DRM]
 
 	mousedev.tap_time=
diff --git a/arch/x86/kernel/mfgpt_32.c b/arch/x86/kernel/mfgpt_32.c
index 3960ab7e1497..219f86eb6123 100644
--- a/arch/x86/kernel/mfgpt_32.c
+++ b/arch/x86/kernel/mfgpt_32.c
@@ -63,6 +63,21 @@ static int __init mfgpt_disable(char *s)
 }
 __setup("nomfgpt", mfgpt_disable);
 
+/* Reset the MFGPT timers. This is required by some broken BIOSes which already
+ * do the same and leave the system in an unstable state. TinyBIOS 0.98 is
+ * affected at least (0.99 is OK with MFGPT workaround left to off).
+ */
+static int __init mfgpt_fix(char *s)
+{
+	u32 val, dummy;
+
+	/* The following udocumented bit resets the MFGPT timers */
+	val = 0xFF; dummy = 0;
+	wrmsr(0x5140002B, val, dummy);
+	return 1;
+}
+__setup("mfgptfix", mfgpt_fix);
+
 /*
  * Check whether any MFGPTs are available for the kernel to use.  In most
  * cases, firmware that uses AMD's VSA code will claim all timers during
-- 
cgit v1.2.3-59-g8ed1b


From 1ce357129a55a791318e23f5d7b8a9f1352858aa Mon Sep 17 00:00:00 2001
From: "travis@sgi.com" <travis@sgi.com>
Date: Wed, 30 Jan 2008 13:33:33 +0100
Subject: x86: early cpu_to_node fix in numa_64.c

Both of these references to cpu_to_node() can potentially occur
before the "late" cpu_to_node map is setup.  Therefore, they
should be changed to use early_cpu_to_node().

Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/numa_64.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 0ca96d86cb71..f0e5cabe49d8 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -251,7 +251,7 @@ void __init numa_init_array(void)
 
 	rr = first_node(node_online_map);
 	for (i = 0; i < NR_CPUS; i++) {
-		if (cpu_to_node(i) != NUMA_NO_NODE)
+		if (early_cpu_to_node(i) != NUMA_NO_NODE)
 			continue;
 		numa_set_node(i, rr);
 		rr = next_node(rr, node_online_map);
@@ -528,7 +528,8 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
 
 __cpuinit void numa_add_cpu(int cpu)
 {
-	set_bit(cpu, (unsigned long *)&node_to_cpumask_map[cpu_to_node(cpu)]);
+	set_bit(cpu,
+		(unsigned long *)&node_to_cpumask_map[early_cpu_to_node(cpu)]);
 }
 
 void __cpuinit numa_set_node(int cpu, int node)
-- 
cgit v1.2.3-59-g8ed1b


From 9a1b62fe858ba6780a9aeb4ab5f7751038a6c15d Mon Sep 17 00:00:00 2001
From: Minoru Usui <usui@mxm.nes.nec.co.jp>
Date: Wed, 30 Jan 2008 13:33:35 +0100
Subject: x86: fix NUMA emulation on 64-bit

I found a small bug of NUMA emulation code for x86_64. (CONFIG_NUMA_EMU)
If machine is non-NUMA, find_node_by_addr() should return
NUMA_NO_NODE, but current implementation code returns existent maximum
NUMA node number + 1.
This is not existent NUMA node number.

However, this behaviour does not affect NUMA emulation fortunately, because
acpi_fake_nodes() that is caller of find_node_by_addr() gets pxm
(proximity domain) by node_to_pxm() from non-existent NUMA node number
that was returned by find_node_by_addr().
node_to_pxm() returns PXM_INVAL that means illegal or non-existent
NUMA node number.

Signed-off-by: Minoru Usui <usui@mxm.nes.nec.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/srat_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 4aed38fa4a65..37308d6bb5d9 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -416,7 +416,7 @@ static int __init find_node_by_addr(unsigned long addr)
 			break;
 		}
 	}
-	return i;
+	return ret;
 }
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From cd7d72bb27a8c7502a602bdc299f1bb0a9357975 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:35 +0100
Subject: x86: improve MTRR trimming messages

improve the MTTR trimming messages and also trigger a WARN_ON()
so that kerneloops.org can pick it up and categorize it.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/mtrr/main.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index ac4b6338f3f4..715919582657 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -706,20 +706,17 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
 
 	/* kvm/qemu doesn't have mtrr set right, don't trim them all */
 	if (!highest_addr) {
-		printk(KERN_WARNING "***************\n");
-		printk(KERN_WARNING "**** WARNING: likely strange cpu\n");
-		printk(KERN_WARNING "**** MTRRs all blank, cpu in qemu?\n");
-		printk(KERN_WARNING "***************\n");
+		printk(KERN_WARNING "WARNING: strange, CPU MTRRs all blank?\n");
+		WARN_ON(1);
 		return 0;
 	}
 
 	if ((highest_addr >> PAGE_SHIFT) < end_pfn) {
-		printk(KERN_WARNING "***************\n");
-		printk(KERN_WARNING "**** WARNING: likely BIOS bug\n");
-		printk(KERN_WARNING "**** MTRRs don't cover all of "
-		       "memory, trimmed %ld pages\n", end_pfn -
-		       (highest_addr >> PAGE_SHIFT));
-		printk(KERN_WARNING "***************\n");
+		printk(KERN_WARNING "WARNING: BIOS bug: CPU MTRRs don't cover"
+			" all of memory, losing %LdMB of RAM.\n",
+			(((u64)end_pfn << PAGE_SHIFT) - highest_addr) >> 20);
+
+		WARN_ON(1);
 
 		printk(KERN_INFO "update e820 for mtrr\n");
 		trim_start = highest_addr;
-- 
cgit v1.2.3-59-g8ed1b


From 519efbc0b3b6004a3b98d66a446bce30852c8171 Mon Sep 17 00:00:00 2001
From: Andreas Herrmann3 <andreas.herrmann3@amd.com>
Date: Wed, 30 Jan 2008 13:33:35 +0100
Subject: x86: fix cpu MHz reporting for AMD family 0x11

Fix cpu MHz reporting for AMD family 0x11 when powernow-k8 is
disabled.

Just adhere to the CONSTANT_TSC feature bit for AMD CPUs when deciding
whether cpu_khz needs calibration. The additional check for CPU family
is not needed and prevents calibration for future CPUs.

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/time_64.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index 61b17f5ec867..0380795121a6 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -120,8 +120,7 @@ void __init time_init(void)
 
 	cpu_khz = tsc_khz;
 	if (cpu_has(&boot_cpu_data, X86_FEATURE_CONSTANT_TSC) &&
-		boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
-		boot_cpu_data.x86 == 16)
+		(boot_cpu_data.x86_vendor == X86_VENDOR_AMD))
 		cpu_khz = calculate_cpu_khz();
 
 	if (unsynchronized_tsc())
-- 
cgit v1.2.3-59-g8ed1b


From ade761496dcd0aea1c41da21d5a6ced4897f02e7 Mon Sep 17 00:00:00 2001
From: Andres Salomon <dilinger@queued.net>
Date: Wed, 30 Jan 2008 13:33:35 +0100
Subject: x86: GEODE: update GPIO API to support setting multiple GPIOs at once

The existing Geode GPIO API only allows for updating one GPIO at once.  There
are instances where users want to update multiple GPIOs at once.  With the
current API, they are given two choices; either ignore the GPIO API:

      outl(0xc000, gpio_base + GPIO_OUTPUT_VAL);
      outl(0xc000, gpio_base + GPIO_OUTPUT_ENABLE);

Alternatively, call each GPIO update separately:

      geode_gpio_set(14, GPIO_OUTPUT_VAL);
      geode_gpio_set(15, GPIO_OUTPUT_VAL);
      geode_gpio_set(14, GPIO_OUTPUT_ENABLE);
      geode_gpio_set(15, GPIO_OUTPUT_ENABLE);

Neither are desirable.  This patch changes the GPIO API to allow for setting
of multiple GPIOs at once; rather than being passed an integer, we pass
a bitmask and provide a translation function.  The above code would now
look like this:

      geode_gpio_set(geode_gpio(14)|geode_gpio(15), GPIO_OUTPUT_VAL);
      geode_gpio_set(geode_gpio(14)|geode_gpio(15), GPIO_OUTPUT_ENABLE);

Since there are no upstream users of the GPIO API yet (afaik), best to
change this now.  This also adds a bit of sanity checking; it is no
longer possible to use a GPIO above 28.

Note the semantics of geode_gpio_isset() have changed:
geode_gpio_isset(geode_gpio(3)|geode_gpio(4), ...)
will only return true iff both GPIOs are set.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/geode_32.c | 48 +++++++++++++++++++++++++++++++---------------
 include/asm-x86/geode.h    | 12 +++++++++---
 2 files changed, 42 insertions(+), 18 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/geode_32.c b/arch/x86/kernel/geode_32.c
index f12d8c5d9809..9c7f7d395968 100644
--- a/arch/x86/kernel/geode_32.c
+++ b/arch/x86/kernel/geode_32.c
@@ -1,6 +1,7 @@
 /*
  * AMD Geode southbridge support code
  * Copyright (C) 2006, Advanced Micro Devices, Inc.
+ * Copyright (C) 2007, Andres Salomon <dilinger@debian.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of version 2 of the GNU General Public License
@@ -51,45 +52,62 @@ EXPORT_SYMBOL_GPL(geode_get_dev_base);
 
 /* === GPIO API === */
 
-void geode_gpio_set(unsigned int gpio, unsigned int reg)
+void geode_gpio_set(u32 gpio, unsigned int reg)
 {
 	u32 base = geode_get_dev_base(GEODE_DEV_GPIO);
 
 	if (!base)
 		return;
 
-	if (gpio < 16)
-		outl(1 << gpio, base + reg);
-	else
-		outl(1 << (gpio - 16), base + 0x80 + reg);
+	/* low bank register */
+	if (gpio & 0xFFFF)
+		outl(gpio & 0xFFFF, base + reg);
+	/* high bank register */
+	gpio >>= 16;
+	if (gpio)
+		outl(gpio, base + 0x80 + reg);
 }
 EXPORT_SYMBOL_GPL(geode_gpio_set);
 
-void geode_gpio_clear(unsigned int gpio, unsigned int reg)
+void geode_gpio_clear(u32 gpio, unsigned int reg)
 {
 	u32 base = geode_get_dev_base(GEODE_DEV_GPIO);
 
 	if (!base)
 		return;
 
-	if (gpio < 16)
-		outl(1 << (gpio + 16), base + reg);
-	else
-		outl(1 << gpio, base + 0x80 + reg);
+	/* low bank register */
+	if (gpio & 0xFFFF)
+		outl((gpio & 0xFFFF) << 16, base + reg);
+	/* high bank register */
+	gpio &= (0xFFFF << 16);
+	if (gpio)
+		outl(gpio, base + 0x80 + reg);
 }
 EXPORT_SYMBOL_GPL(geode_gpio_clear);
 
-int geode_gpio_isset(unsigned int gpio, unsigned int reg)
+int geode_gpio_isset(u32 gpio, unsigned int reg)
 {
 	u32 base = geode_get_dev_base(GEODE_DEV_GPIO);
+	u32 val;
 
 	if (!base)
 		return 0;
 
-	if (gpio < 16)
-		return (inl(base + reg) & (1 << gpio)) ? 1 : 0;
-	else
-		return (inl(base + 0x80 + reg) & (1 << (gpio - 16))) ? 1 : 0;
+	/* low bank register */
+	if (gpio & 0xFFFF) {
+		val = inl(base + reg) & (gpio & 0xFFFF);
+		if ((gpio & 0xFFFF) == val)
+			return 1;
+	}
+	/* high bank register */
+	gpio >>= 16;
+	if (gpio) {
+		val = inl(base + 0x80 + reg) & gpio;
+		if (gpio == val)
+			return 1;
+	}
+	return 0;
 }
 EXPORT_SYMBOL_GPL(geode_gpio_isset);
 
diff --git a/include/asm-x86/geode.h b/include/asm-x86/geode.h
index 771af336734f..811fe14f70b2 100644
--- a/include/asm-x86/geode.h
+++ b/include/asm-x86/geode.h
@@ -121,9 +121,15 @@ extern int geode_get_dev_base(unsigned int dev);
 #define GPIO_MAP_Z		0xE8
 #define GPIO_MAP_W		0xEC
 
-extern void geode_gpio_set(unsigned int, unsigned int);
-extern void geode_gpio_clear(unsigned int, unsigned int);
-extern int geode_gpio_isset(unsigned int, unsigned int);
+static inline u32 geode_gpio(unsigned int nr)
+{
+	BUG_ON(nr > 28);
+	return 1 << nr;
+}
+
+extern void geode_gpio_set(u32, unsigned int);
+extern void geode_gpio_clear(u32, unsigned int);
+extern int geode_gpio_isset(u32, unsigned int);
 extern void geode_gpio_setup_event(unsigned int, int, int);
 extern void geode_gpio_set_irq(unsigned int, unsigned int);
 
-- 
cgit v1.2.3-59-g8ed1b


From a608295935d237bdbe95eefdba1e3fa40676df31 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian.fainelli@telecomint.eu>
Date: Wed, 30 Jan 2008 13:33:35 +0100
Subject: x86: add generic GPIO support to x86

This patch adds the generic GPIO support to the x86
architecture. We do the same as for MIPS, we let
the machine override the gpio callbacks and provide
defaults one in mach-generic.

Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig                    |  3 +++
 include/asm-x86/gpio.h              |  6 ++++++
 include/asm-x86/mach-generic/gpio.h | 15 +++++++++++++++
 3 files changed, 24 insertions(+)
 create mode 100644 include/asm-x86/gpio.h
 create mode 100644 include/asm-x86/mach-generic/gpio.h

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8e1b33c5405f..32e267186035 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -72,6 +72,9 @@ config GENERIC_BUG
 config GENERIC_HWEIGHT
 	def_bool y
 
+config GENERIC_GPIO
+	def_bool n
+
 config ARCH_MAY_HAVE_PC_FDC
 	def_bool y
 
diff --git a/include/asm-x86/gpio.h b/include/asm-x86/gpio.h
new file mode 100644
index 000000000000..ff87fca0caf9
--- /dev/null
+++ b/include/asm-x86/gpio.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_I386_GPIO_H
+#define _ASM_I386_GPIO_H
+
+#include <gpio.h>
+
+#endif /* _ASM_I386_GPIO_H */
diff --git a/include/asm-x86/mach-generic/gpio.h b/include/asm-x86/mach-generic/gpio.h
new file mode 100644
index 000000000000..5305dcb96df2
--- /dev/null
+++ b/include/asm-x86/mach-generic/gpio.h
@@ -0,0 +1,15 @@
+#ifndef __ASM_MACH_GENERIC_GPIO_H
+#define __ASM_MACH_GENERIC_GPIO_H
+
+int gpio_request(unsigned gpio, const char *label);
+void gpio_free(unsigned gpio);
+int gpio_direction_input(unsigned gpio);
+int gpio_direction_output(unsigned gpio, int value);
+int gpio_get_value(unsigned gpio);
+void gpio_set_value(unsigned gpio, int value);
+int gpio_to_irq(unsigned gpio);
+int irq_to_gpio(unsigned irq);
+
+#include <asm-generic/gpio.h>           /* cansleep wrappers */
+
+#endif /* __ASM_MACH_GENERIC_GPIO_H */
-- 
cgit v1.2.3-59-g8ed1b


From 5e3a77e9a9b7bfc1f69f51fe6d34aa649887980c Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian.fainelli@telecomint.eu>
Date: Wed, 30 Jan 2008 13:33:36 +0100
Subject: x86: add support for the RDC R-321x SoC

This patch adds support for the RDC R-321x system-on-chip,
also known as R-861x-(G). It uses the generic GPIO API and
has support for the on-chip hardware watchdog.

Build-fix from: Randy Dunlap <randy.dunlap@oracle.com>

Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig                            |  14 +-
 arch/x86/Makefile                           |   5 +
 arch/x86/mach-rdc321x/Makefile              |   5 +
 arch/x86/mach-rdc321x/gpio.c                |  91 +++++++++
 arch/x86/mach-rdc321x/platform.c            |  68 +++++++
 arch/x86/mach-rdc321x/wdt.c                 | 275 ++++++++++++++++++++++++++++
 include/asm-x86/mach-rdc321x/gpio.h         |  56 ++++++
 include/asm-x86/mach-rdc321x/rdc321x_defs.h |   6 +
 include/asm-x86/timex.h                     |   2 +
 9 files changed, 521 insertions(+), 1 deletion(-)
 create mode 100644 arch/x86/mach-rdc321x/Makefile
 create mode 100644 arch/x86/mach-rdc321x/gpio.c
 create mode 100644 arch/x86/mach-rdc321x/platform.c
 create mode 100644 arch/x86/mach-rdc321x/wdt.c
 create mode 100644 include/asm-x86/mach-rdc321x/gpio.h
 create mode 100644 include/asm-x86/mach-rdc321x/rdc321x_defs.h

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 32e267186035..92dc919c7640 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -291,6 +291,18 @@ config X86_ES7000
 	  Only choose this option if you have such a system, otherwise you
 	  should say N here.
 
+config X86_RDC321X
+	bool "RDC R-321x SoC"
+	depends on X86_32
+	select M486
+	select X86_REBOOTFIXUPS
+	select GENERIC_GPIO
+	select LEDS_GPIO
+	help
+	  This option is needed for RDC R-321x system-on-chip, also known
+	  as R-8610-(G).
+	  If you don't have one of these chips, you should say N here.
+
 config X86_VSMP
 	bool "Support for ScaleMP vSMP"
 	depends on X86_64 && PCI
@@ -637,7 +649,7 @@ config X86_REBOOTFIXUPS
 	  system.
 
 	  Currently, the only fixup is for the Geode machines using
-	  CS5530A and CS5536 chipsets.
+	  CS5530A and CS5536 chipsets and the RDC R-321x SoC.
 
 	  Say Y if you want to enable the fixup. Currently, it's safe to
 	  enable this option even if you don't need it.
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index e2ffccfd6af6..b08f18261df6 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -139,6 +139,11 @@ mflags-$(CONFIG_X86_ES7000)	:= -Iinclude/asm-x86/mach-es7000
 fcore-$(CONFIG_X86_ES7000)	:= arch/x86/mach-es7000/
 mcore-$(CONFIG_X86_ES7000)	:= arch/x86/mach-default/
 
+# RDC R-321x subarch support
+mflags-$(CONFIG_X86_RDC321X)	:= -Iinclude/asm-x86/mach-rdc321x
+mcore-$(CONFIG_X86_RDC321X)	:= arch/x86/mach-default
+core-$(CONFIG_X86_RDC321X)	+= arch/x86/mach-rdc321x/
+
 # default subarch .h files
 mflags-y += -Iinclude/asm-x86/mach-default
 
diff --git a/arch/x86/mach-rdc321x/Makefile b/arch/x86/mach-rdc321x/Makefile
new file mode 100644
index 000000000000..1faac8125e3d
--- /dev/null
+++ b/arch/x86/mach-rdc321x/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the RDC321x specific parts of the kernel
+#
+obj-$(CONFIG_X86_RDC321X)        := gpio.o platform.o wdt.o
+
diff --git a/arch/x86/mach-rdc321x/gpio.c b/arch/x86/mach-rdc321x/gpio.c
new file mode 100644
index 000000000000..031269163bd6
--- /dev/null
+++ b/arch/x86/mach-rdc321x/gpio.c
@@ -0,0 +1,91 @@
+/*
+ *  Copyright (C) 2007, OpenWrt.org, Florian Fainelli <florian@openwrt.org>
+ *  	RDC321x architecture specific GPIO support
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ */
+
+#include <linux/autoconf.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+
+#include <asm/mach-rdc321x/rdc321x_defs.h>
+
+static inline int rdc_gpio_is_valid(unsigned gpio)
+{
+	return (gpio <= RDC_MAX_GPIO);
+}
+
+static unsigned int rdc_gpio_read(unsigned gpio)
+{
+	unsigned int val;
+
+	val = 0x80000000 | (7 << 11) | ((gpio&0x20?0x84:0x48));
+	outl(val, RDC3210_CFGREG_ADDR);
+	udelay(10);
+	val = inl(RDC3210_CFGREG_DATA);
+	val |= (0x1 << (gpio & 0x1F));
+	outl(val, RDC3210_CFGREG_DATA);
+	udelay(10);
+	val = 0x80000000 | (7 << 11) | ((gpio&0x20?0x88:0x4C));
+	outl(val, RDC3210_CFGREG_ADDR);
+	udelay(10);
+	val = inl(RDC3210_CFGREG_DATA);
+
+	return val;
+}
+
+static void rdc_gpio_write(unsigned int val)
+{
+	if (val) {
+		outl(val, RDC3210_CFGREG_DATA);
+		udelay(10);
+	}
+}
+
+int rdc_gpio_get_value(unsigned gpio)
+{
+	if (rdc_gpio_is_valid(gpio))
+		return (int)rdc_gpio_read(gpio);
+	else
+		return -EINVAL;
+}
+EXPORT_SYMBOL(rdc_gpio_get_value);
+
+void rdc_gpio_set_value(unsigned gpio, int value)
+{
+	unsigned int val;
+
+	if (!rdc_gpio_is_valid(gpio))
+		return;
+
+	val = rdc_gpio_read(gpio);
+
+	if (value)
+		val &= ~(0x1 << (gpio & 0x1F));
+	else
+		val |= (0x1 << (gpio & 0x1F));
+
+	rdc_gpio_write(val);
+}
+EXPORT_SYMBOL(rdc_gpio_set_value);
+
+int rdc_gpio_direction_input(unsigned gpio)
+{
+	return 0;
+}
+EXPORT_SYMBOL(rdc_gpio_direction_input);
+
+int rdc_gpio_direction_output(unsigned gpio, int value)
+{
+	return 0;
+}
+EXPORT_SYMBOL(rdc_gpio_direction_output);
+
+
diff --git a/arch/x86/mach-rdc321x/platform.c b/arch/x86/mach-rdc321x/platform.c
new file mode 100644
index 000000000000..dda6024a5862
--- /dev/null
+++ b/arch/x86/mach-rdc321x/platform.c
@@ -0,0 +1,68 @@
+/*
+ *  Generic RDC321x platform devices
+ *
+ *  Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the
+ *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/version.h>
+#include <linux/leds.h>
+
+#include <asm/gpio.h>
+
+/* LEDS */
+static struct gpio_led default_leds[] = {
+	{ .name = "rdc:dmz", .gpio = 1, },
+};
+
+static struct gpio_led_platform_data rdc321x_led_data = {
+	.num_leds = ARRAY_SIZE(default_leds),
+	.leds = default_leds,
+};
+
+static struct platform_device rdc321x_leds = {
+	.name = "leds-gpio",
+	.id = -1,
+	.dev = {
+		.platform_data = &rdc321x_led_data,
+	}
+};
+
+/* Watchdog */
+static struct platform_device rdc321x_wdt = {
+	.name = "rdc321x-wdt",
+	.id = -1,
+	.num_resources = 0,
+};
+
+static struct platform_device *rdc321x_devs[] = {
+	&rdc321x_leds,
+	&rdc321x_wdt
+};
+
+static int __init rdc_board_setup(void)
+{
+	return platform_add_devices(rdc321x_devs, ARRAY_SIZE(rdc321x_devs));
+}
+
+arch_initcall(rdc_board_setup);
diff --git a/arch/x86/mach-rdc321x/wdt.c b/arch/x86/mach-rdc321x/wdt.c
new file mode 100644
index 000000000000..ec5625ae7061
--- /dev/null
+++ b/arch/x86/mach-rdc321x/wdt.c
@@ -0,0 +1,275 @@
+/*
+ * RDC321x watchdog driver
+ *
+ * Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
+ *
+ * This driver is highly inspired from the cpu5_wdt driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/timer.h>
+#include <linux/completion.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/watchdog.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/mach-rdc321x/rdc321x_defs.h>
+
+#define RDC_WDT_MASK	0x80000000 /* Mask */
+#define RDC_WDT_EN	0x00800000 /* Enable bit */
+#define RDC_WDT_WTI	0x00200000 /* Generate CPU reset/NMI/WDT on timeout */
+#define RDC_WDT_RST	0x00100000 /* Reset bit */
+#define RDC_WDT_WIF	0x00040000 /* WDT IRQ Flag */
+#define RDC_WDT_IRT	0x00000100 /* IRQ Routing table */
+#define RDC_WDT_CNT	0x00000001 /* WDT count */
+
+#define RDC_CLS_TMR	0x80003844 /* Clear timer */
+
+#define RDC_WDT_INTERVAL	(HZ/10+1)
+
+int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static int ticks = 1000;
+
+/* some device data */
+
+static struct {
+	struct completion stop;
+	volatile int running;
+	struct timer_list timer;
+	volatile int queue;
+	int default_ticks;
+	unsigned long inuse;
+} rdc321x_wdt_device;
+
+/* generic helper functions */
+
+static void rdc321x_wdt_trigger(unsigned long unused)
+{
+	if (rdc321x_wdt_device.running)
+		ticks--;
+
+	/* keep watchdog alive */
+	outl(RDC_WDT_EN|inl(RDC3210_CFGREG_DATA), RDC3210_CFGREG_DATA);
+
+	/* requeue?? */
+	if (rdc321x_wdt_device.queue && ticks)
+		mod_timer(&rdc321x_wdt_device.timer,
+				jiffies + RDC_WDT_INTERVAL);
+	else {
+		/* ticks doesn't matter anyway */
+		complete(&rdc321x_wdt_device.stop);
+	}
+
+}
+
+static void rdc321x_wdt_reset(void)
+{
+	ticks = rdc321x_wdt_device.default_ticks;
+}
+
+static void rdc321x_wdt_start(void)
+{
+	if (!rdc321x_wdt_device.queue) {
+		rdc321x_wdt_device.queue = 1;
+
+		/* Clear the timer */
+		outl(RDC_CLS_TMR, RDC3210_CFGREG_ADDR);
+
+		/* Enable watchdog and set the timeout to 81.92 us */
+		outl(RDC_WDT_EN|RDC_WDT_CNT, RDC3210_CFGREG_DATA);
+
+		mod_timer(&rdc321x_wdt_device.timer,
+				jiffies + RDC_WDT_INTERVAL);
+	}
+
+	/* if process dies, counter is not decremented */
+	rdc321x_wdt_device.running++;
+}
+
+static int rdc321x_wdt_stop(void)
+{
+	if (rdc321x_wdt_device.running)
+		rdc321x_wdt_device.running = 0;
+
+	ticks = rdc321x_wdt_device.default_ticks;
+
+	return -EIO;
+}
+
+/* filesystem operations */
+
+static int rdc321x_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &rdc321x_wdt_device.inuse))
+		return -EBUSY;
+
+	return nonseekable_open(inode, file);
+}
+
+static int rdc321x_wdt_release(struct inode *inode, struct file *file)
+{
+	clear_bit(0, &rdc321x_wdt_device.inuse);
+	return 0;
+}
+
+static int rdc321x_wdt_ioctl(struct inode *inode, struct file *file,
+				unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	unsigned int value;
+	static struct watchdog_info ident = {
+		.options = WDIOF_CARDRESET,
+		.identity = "RDC321x WDT",
+	};
+
+	switch (cmd) {
+	case WDIOC_KEEPALIVE:
+		rdc321x_wdt_reset();
+		break;
+	case WDIOC_GETSTATUS:
+		/* Read the value from the DATA register */
+		value = inl(RDC3210_CFGREG_DATA);
+		if (copy_to_user(argp, &value, sizeof(int)))
+			return -EFAULT;
+		break;
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		break;
+	case WDIOC_SETOPTIONS:
+		if (copy_from_user(&value, argp, sizeof(int)))
+			return -EFAULT;
+		switch (value) {
+		case WDIOS_ENABLECARD:
+			rdc321x_wdt_start();
+			break;
+		case WDIOS_DISABLECARD:
+			return rdc321x_wdt_stop();
+		default:
+			return -EINVAL;
+		}
+		break;
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+static ssize_t rdc321x_wdt_write(struct file *file, const char __user *buf,
+				size_t count, loff_t *ppos)
+{
+	if (!count)
+		return -EIO;
+
+	rdc321x_wdt_reset();
+
+	return count;
+}
+
+static const struct file_operations rdc321x_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.ioctl		= rdc321x_wdt_ioctl,
+	.open		= rdc321x_wdt_open,
+	.write		= rdc321x_wdt_write,
+	.release	= rdc321x_wdt_release,
+};
+
+static struct miscdevice rdc321x_wdt_misc = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &rdc321x_wdt_fops,
+};
+
+static int __devinit rdc321x_wdt_probe(struct platform_device *pdev)
+{
+	int err;
+
+	err = misc_register(&rdc321x_wdt_misc);
+	if (err < 0) {
+		printk(KERN_ERR PFX "watchdog misc_register failed\n");
+		return err;
+	}
+
+	/* Reset the watchdog */
+	outl(RDC_WDT_RST, RDC3210_CFGREG_DATA);
+
+	init_completion(&rdc321x_wdt_device.stop);
+	rdc321x_wdt_device.queue = 0;
+
+	clear_bit(0, &rdc321x_wdt_device.inuse);
+
+	setup_timer(&rdc321x_wdt_device.timer, rdc321x_wdt_trigger, 0);
+
+	rdc321x_wdt_device.default_ticks = ticks;
+
+	printk(KERN_INFO PFX "watchdog init success\n");
+
+	return 0;
+}
+
+static int rdc321x_wdt_remove(struct platform_device *pdev)
+{
+	if (rdc321x_wdt_device.queue) {
+		rdc321x_wdt_device.queue = 0;
+		wait_for_completion(&rdc321x_wdt_device.stop);
+	}
+
+	misc_deregister(&rdc321x_wdt_misc);
+
+	return 0;
+}
+
+static struct platform_driver rdc321x_wdt_driver = {
+	.probe = rdc321x_wdt_probe,
+	.remove = rdc321x_wdt_remove,
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = "rdc321x-wdt",
+	},
+};
+
+static int __init rdc321x_wdt_init(void)
+{
+	return platform_driver_register(&rdc321x_wdt_driver);
+}
+
+static void __exit rdc321x_wdt_exit(void)
+{
+	platform_driver_unregister(&rdc321x_wdt_driver);
+}
+
+module_init(rdc321x_wdt_init);
+module_exit(rdc321x_wdt_exit);
+
+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
+MODULE_DESCRIPTION("RDC321x watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/include/asm-x86/mach-rdc321x/gpio.h b/include/asm-x86/mach-rdc321x/gpio.h
new file mode 100644
index 000000000000..db31b929b990
--- /dev/null
+++ b/include/asm-x86/mach-rdc321x/gpio.h
@@ -0,0 +1,56 @@
+#ifndef _RDC321X_GPIO_H
+#define _RDC321X_GPIO_H
+
+extern int rdc_gpio_get_value(unsigned gpio);
+extern void rdc_gpio_set_value(unsigned gpio, int value);
+extern int rdc_gpio_direction_input(unsigned gpio);
+extern int rdc_gpio_direction_output(unsigned gpio, int value);
+
+
+/* Wrappers for the arch-neutral GPIO API */
+
+static inline int gpio_request(unsigned gpio, const char *label)
+{
+	/* Not yet implemented */
+	return 0;
+}
+
+static inline void gpio_free(unsigned gpio)
+{
+	/* Not yet implemented */
+}
+
+static inline int gpio_direction_input(unsigned gpio)
+{
+	return rdc_gpio_direction_input(gpio);
+}
+
+static inline int gpio_direction_output(unsigned gpio, int value)
+{
+	return rdc_gpio_direction_output(gpio, value);
+}
+
+static inline int gpio_get_value(unsigned gpio)
+{
+	return rdc_gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+	rdc_gpio_set_value(gpio, value);
+}
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+	return gpio;
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+	return irq;
+}
+
+/* For cansleep */
+#include <asm-generic/gpio.h>
+
+#endif /* _RDC321X_GPIO_H_ */
diff --git a/include/asm-x86/mach-rdc321x/rdc321x_defs.h b/include/asm-x86/mach-rdc321x/rdc321x_defs.h
new file mode 100644
index 000000000000..838ba8f64fd3
--- /dev/null
+++ b/include/asm-x86/mach-rdc321x/rdc321x_defs.h
@@ -0,0 +1,6 @@
+#define PFX	"rdc321x: "
+
+/* General purpose configuration and data registers */
+#define RDC3210_CFGREG_ADDR     0x0CF8
+#define RDC3210_CFGREG_DATA     0x0CFC
+#define RDC_MAX_GPIO		0x3A
diff --git a/include/asm-x86/timex.h b/include/asm-x86/timex.h
index 39a21ab030f0..27cfd6c599ba 100644
--- a/include/asm-x86/timex.h
+++ b/include/asm-x86/timex.h
@@ -7,6 +7,8 @@
 
 #ifdef CONFIG_X86_ELAN
 #  define PIT_TICK_RATE 1189200 /* AMD Elan has different frequency! */
+#elif defined(CONFIG_X86_RDC321X)
+#  define PIT_TICK_RATE 1041667 /* Underlying HZ for R8610 */
 #else
 #  define PIT_TICK_RATE 1193182 /* Underlying HZ */
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From ff472a114ca11f5354912745fbb94bb66ec10916 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian.fainelli@telecomint.eu>
Date: Wed, 30 Jan 2008 13:33:36 +0100
Subject: x86: add the RDC machine specific reboot fixup

The RDC R-321x SoC needs a reboot fixup which
uses its internal hardware watchdog set to
reset the CPU on next tick.

Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/reboot_fixups_32.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c
index f452726c0fe2..dec0b5ec25c2 100644
--- a/arch/x86/kernel/reboot_fixups_32.c
+++ b/arch/x86/kernel/reboot_fixups_32.c
@@ -30,6 +30,19 @@ static void cs5536_warm_reset(struct pci_dev *dev)
 	udelay(50); /* shouldn't get here but be safe and spin a while */
 }
 
+static void rdc321x_reset(struct pci_dev *dev)
+{
+	unsigned i;
+	/* Voluntary reset the watchdog timer */
+	outl(0x80003840, 0xCF8);
+	/* Generate a CPU reset on next tick */
+	i = inl(0xCFC);
+	/* Use the minimum timer resolution */
+	i |= 0x1600;
+	outl(i, 0xCFC);
+	outb(1, 0x92);
+}
+
 struct device_fixup {
 	unsigned int vendor;
 	unsigned int device;
@@ -40,6 +53,7 @@ static struct device_fixup fixups_table[] = {
 { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, cs5530a_warm_reset },
 { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, cs5536_warm_reset },
 { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SC1100_BRIDGE, cs5530a_warm_reset },
+{ PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030, rdc321x_reset },
 };
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From 1e35669d017eac5bea4739f927b28e64731504e1 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:33:36 +0100
Subject: x86: fix section mismatch warning in mcheck/mce_64.c

Fix following warning:
WARNING: arch/x86/kernel/cpu/mcheck/built-in.o(.text+0x752): Section mismatch: reference to .cpuinit.text:mce_create_device in 'mce_cpu_callback'

mce_cpu_callback() is only used by mce_cpu_notofier.
The notifier is only used for hotplugable cpu's as it is
registered using register_hotcpu_notifier(),

Annotate them both __cpuinit to fix the warning.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/mcheck/mce_64.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index 98b23d55fe6e..9a699ed03598 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -854,8 +854,8 @@ static void mce_remove_device(unsigned int cpu)
 }
 
 /* Get notified when a cpu comes on/off. Be hotplug friendly. */
-static int
-mce_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
+static int __cpuinit mce_cpu_callback(struct notifier_block *nfb,
+				      unsigned long action, void *hcpu)
 {
 	unsigned int cpu = (unsigned long)hcpu;
 
@@ -872,7 +872,7 @@ mce_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
 	return NOTIFY_OK;
 }
 
-static struct notifier_block mce_cpu_notifier = {
+static struct notifier_block mce_cpu_notifier __cpuinitdata = {
 	.notifier_call = mce_cpu_callback,
 };
 
-- 
cgit v1.2.3-59-g8ed1b


From b48ed48a7816aafedb260cafe872a55757b9489e Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:33:36 +0100
Subject: x86: fix section mismatch warning in mcheck/mce_amd_64.c

Fix following warning:
WARNING: arch/x86/kernel/cpu/mcheck/built-in.o(.text+0x1584): Section mismatch: reference to .cpuinit.text:threshold_create_device in 'threshold_cpu_callback'

threshold_cpu_callback() is only used by threshold_cpu_notifier.
threshold_cpu_notifier is only used for cpu hot plug as it is registered
using register_hotcpu_notifier().

Mark them both __cpuinit to fix the warning.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/mcheck/mce_amd_64.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index 550502596ca3..77e666628818 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -645,7 +645,7 @@ static void threshold_remove_device(unsigned int cpu)
 }
 
 /* get notified when a cpu comes on/off */
-static int threshold_cpu_callback(struct notifier_block *nfb,
+static int __cpuinit threshold_cpu_callback(struct notifier_block *nfb,
 					    unsigned long action, void *hcpu)
 {
 	/* cpu was unsigned int to begin with */
@@ -670,7 +670,7 @@ static int threshold_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block threshold_cpu_notifier = {
+static struct notifier_block threshold_cpu_notifier __cpuinitdata = {
 	.notifier_call = threshold_cpu_callback,
 };
 
-- 
cgit v1.2.3-59-g8ed1b


From 4c02ad1efdd1293d6fdd453a2f27ad993458dcd1 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:33:37 +0100
Subject: x86: fix section mismatch warning in process_*.c

Fix the following warning:
WARNING: arch/x86/kernel/built-in.o(.text+0x3): Section mismatch: reference to .cpuinit.data:force_mwait in 'mwait_usable'
[Seen on 64 bit only but similar pattern exist on 32 bit so fix it there too]

mwait_usable() were only used by a function annotated __cpuinit
so annotate mwait_usable() with __cpuinit to fix the warning.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/process_32.c | 2 +-
 arch/x86/kernel/process_64.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index b72d7d132072..968371ab223a 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -285,7 +285,7 @@ static void mwait_idle(void)
 	mwait_idle_with_hints(0, 0);
 }
 
-static int mwait_usable(const struct cpuinfo_x86 *c)
+static int __cpuinit mwait_usable(const struct cpuinfo_x86 *c)
 {
 	if (force_mwait)
 		return 1;
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index b4c470658a8a..137a86171c39 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -281,7 +281,7 @@ static void mwait_idle(void)
 }
 
 
-static int mwait_usable(const struct cpuinfo_x86 *c)
+static int __cpuinit mwait_usable(const struct cpuinfo_x86 *c)
 {
 	if (force_mwait)
 		return 1;
-- 
cgit v1.2.3-59-g8ed1b


From 87d7e98012e60d36cdb6c9c6a6cd1dec7c2b5a1c Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:33:37 +0100
Subject: x86: fix section mismatch warning in acpi/boot.c

Fix following warning:
WARNING: arch/x86/kernel/built-in.o(.text+0x10ea0): Section mismatch: reference to .cpuinit.data:num_processors in 'acpi_unmap_lsapic'

The exported function acpi_unmap_lsapic() references
the variable num_processors that is annotated __cpuinitdata.

Remove the annotation of num_processors as we never know
when an exported function are called.
And drop the needless initialsation to 0.

Warning was seen on 64 bit but similar pattern were seen
in 32 bit - so fix it up there too.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/mpparse_32.c | 2 +-
 arch/x86/kernel/mpparse_64.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/mpparse_32.c b/arch/x86/kernel/mpparse_32.c
index cc06eae1b037..67009cdd5eca 100644
--- a/arch/x86/kernel/mpparse_32.c
+++ b/arch/x86/kernel/mpparse_32.c
@@ -68,7 +68,7 @@ unsigned int def_to_bigsmp = 0;
 /* Processor that is doing the boot up */
 unsigned int boot_cpu_physical_apicid = -1U;
 /* Internal processor count */
-unsigned int __cpuinitdata num_processors;
+unsigned int num_processors;
 
 /* Bitmask of physically existing CPUs */
 physid_mask_t phys_cpu_present_map;
diff --git a/arch/x86/kernel/mpparse_64.c b/arch/x86/kernel/mpparse_64.c
index d3260f8f17dc..72ab1403fed7 100644
--- a/arch/x86/kernel/mpparse_64.c
+++ b/arch/x86/kernel/mpparse_64.c
@@ -60,7 +60,7 @@ unsigned int boot_cpu_id = -1U;
 EXPORT_SYMBOL(boot_cpu_id);
 
 /* Internal processor count */
-unsigned int num_processors __cpuinitdata = 0;
+unsigned int num_processors;
 
 unsigned disabled_cpus __cpuinitdata;
 
-- 
cgit v1.2.3-59-g8ed1b


From 85b74d6c119a7dae882569e57925eaafecc07859 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:33:37 +0100
Subject: x86: fix section mismatch warning in early-quirks.c

Fix following warnings:
WARNING: arch/x86/kernel/built-in.o(.text+0x139e1): Section mismatch: reference to .init.data:early_qrk in 'check_dev_quirk'
WARNING: arch/x86/kernel/built-in.o(.text+0x139f5): Section mismatch: reference to .init.data:early_qrk in 'check_dev_quirk'
WARNING: arch/x86/kernel/built-in.o(.text+0x13a0c): Section mismatch: reference to .init.data:early_qrk in 'check_dev_quirk'
WARNING: arch/x86/kernel/built-in.o(.text+0x13a12): Section mismatch: reference to .init.data:early_qrk in 'check_dev_quirk'
WARNING: arch/x86/kernel/built-in.o(.text+0x13a1a): Section mismatch: reference to .init.data:early_qrk in 'check_dev_quirk'
WARNING: arch/x86/kernel/built-in.o(.text+0x13a36): Section mismatch: reference to .init.data:early_qrk in 'check_dev_quirk'
WARNING: arch/x86/kernel/built-in.o(.text+0x13a42): Section mismatch: reference to .init.data:

Warning was caused by access to the __initdata annotated variable
from the non-annotated static function check_dev_quirk().
check_dev_quirk() were only used from a function annotated
__init so add __init annotation to check_dev_quirk() to fix it.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/early-quirks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 3f88e437e843..9f51e1ea9e82 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -133,7 +133,7 @@ static struct chipset early_qrk[] __initdata = {
 	{}
 };
 
-static void check_dev_quirk(int num, int slot, int func)
+static void __init check_dev_quirk(int num, int slot, int func)
 {
 	u16 class;
 	u16 vendor;
-- 
cgit v1.2.3-59-g8ed1b


From 1e296f578a8ef70b314315a2bfc7b036f947803f Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:33:37 +0100
Subject: x86: fix section mismatch warning in srat_64.c

Fix the following warnings:
WARNING: arch/x86/mm/built-in.o(.text+0x1abc): Section mismatch: reference to .init.data:nodes_parsed in 'unparse_node'
WARNING: arch/x86/mm/built-in.o(.text+0x1ac6): Section mismatch: reference to .cpuinit.data:apicid_to_node in 'unparse_node'
WARNING: arch/x86/mm/built-in.o(.text+0x1ad2): Section mismatch: reference to .cpuinit.data:apicid_to_node in 'unparse_node'

unparse_node are static and only used by acpi_scan_nodes which
is already annotated __init.
So we annotate unparse_node with __init.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/srat_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 37308d6bb5d9..65416f843e59 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -323,7 +323,7 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)
 	return 1;
 }
 
-static void unparse_node(int node)
+static void __init unparse_node(int node)
 {
 	int i;
 	node_clear(node, nodes_parsed);
-- 
cgit v1.2.3-59-g8ed1b


From 3eaf5efae72b33bc6132e9590e5d4bf11532f8c4 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:33:37 +0100
Subject: x86: fix section mismatch warning in topology.c

Fix following warning:
WARNING: arch/x86/kernel/built-in.o(__ksymtab+0x2b0): Section mismatch: reference to .cpuinit.text:arch_register_cpu in '__ksymtab_arch_register_cpu'

Annotating exported symbols are wrong.
Previously the warning were hidden by avoiding the export
in the non HOTPLUG_CPU case but the improved checks in
modpost caught it anyway.
Fix it by removing the __cpuinit annotation and rearrange the
code a bit to save one ifdef/endif pair.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/topology.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c
index a0d1719bda79..78cbb655aa79 100644
--- a/arch/x86/kernel/topology.c
+++ b/arch/x86/kernel/topology.c
@@ -33,7 +33,8 @@
 
 static DEFINE_PER_CPU(struct x86_cpu, cpu_devices);
 
-int __cpuinit arch_register_cpu(int num)
+#ifdef CONFIG_HOTPLUG_CPU
+int arch_register_cpu(int num)
 {
 	/*
 	 * CPU0 cannot be offlined due to several
@@ -44,21 +45,23 @@ int __cpuinit arch_register_cpu(int num)
 	 * Also certain PCI quirks require not to enable hotplug control
 	 * for all CPU's.
 	 */
-#ifdef CONFIG_HOTPLUG_CPU
 	if (num)
 		per_cpu(cpu_devices, num).cpu.hotpluggable = 1;
-#endif
-
 	return register_cpu(&per_cpu(cpu_devices, num).cpu, num);
 }
+EXPORT_SYMBOL(arch_register_cpu);
 
-#ifdef CONFIG_HOTPLUG_CPU
 void arch_unregister_cpu(int num)
 {
 	return unregister_cpu(&per_cpu(cpu_devices, num).cpu);
 }
-EXPORT_SYMBOL(arch_register_cpu);
 EXPORT_SYMBOL(arch_unregister_cpu);
+#else
+int arch_register_cpu(int num)
+{
+	return register_cpu(&per_cpu(cpu_devices, num).cpu, num);
+}
+EXPORT_SYMBOL(arch_register_cpu);
 #endif /*CONFIG_HOTPLUG_CPU*/
 
 static int __init topology_init(void)
-- 
cgit v1.2.3-59-g8ed1b


From adb8daed46356d1772e8bd8def1b70c8cb58ce12 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:33:37 +0100
Subject: x86: fix section mismatch warning in setup_64.c

Fix the following warning:
WARNING: arch/x86/kernel/built-in.o(.cpuinit.text+0x7a3): Section mismatch: reference to .init.text:amd_detect_cmp in 'init_amd'

The function amd_detect_cmp were annotated __init and
was only used from init_amd() which are annotated __cpuinit.

Annotate amd_detect_cmp() with _cpuinit to fix it.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 9ee2bc30d530..c9b7f44ea497 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -530,7 +530,7 @@ static int nearby_node(int apicid)
  * On a AMD dual core setup the lower bits of the APIC id distingush the cores.
  * Assumes number of cores is a power of two.
  */
-static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
+static void __cpuinit amd_detect_cmp(struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
 	unsigned bits;
-- 
cgit v1.2.3-59-g8ed1b


From c6c2d7a084d14a8a701be84872aa1b77d2945f46 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 30 Jan 2008 13:33:37 +0100
Subject: x86: fix usage of .section .sched.text in assembler code

Without this patch the linker will generate a section
named .sched.text.1 which is unexpected.
This is because the gcc generated section has "ax" but the
assembler usage of .sched.text lacks the "ax" specifier.

It would be better to have a definition we could use from
assembler code but I did not find a suitable header
file for it.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/lib/semaphore_32.S | 2 +-
 arch/x86/lib/thunk_64.S     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/lib/semaphore_32.S b/arch/x86/lib/semaphore_32.S
index e2c6e0d5e125..3899bd37fdf0 100644
--- a/arch/x86/lib/semaphore_32.S
+++ b/arch/x86/lib/semaphore_32.S
@@ -29,7 +29,7 @@
  * registers (%eax, %edx and %ecx) except %eax whish is either a return
  * value or just clobbered..
  */
-	.section .sched.text
+	.section .sched.text, "ax"
 ENTRY(__down_failed)
 	CFI_STARTPROC
 	FRAME
diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S
index 6ea73f3de567..8b92d428ab02 100644
--- a/arch/x86/lib/thunk_64.S
+++ b/arch/x86/lib/thunk_64.S
@@ -33,7 +33,7 @@
 	.endm
 	
 
-	.section .sched.text
+	.section .sched.text, "ax"
 #ifdef CONFIG_RWSEM_XCHGADD_ALGORITHM
 	thunk rwsem_down_read_failed_thunk,rwsem_down_read_failed
 	thunk rwsem_down_write_failed_thunk,rwsem_down_write_failed
-- 
cgit v1.2.3-59-g8ed1b


From afe0bc63ae5fdc642a6181e1b514434f901e39ba Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Wed, 30 Jan 2008 13:33:37 +0100
Subject: x86: unify whitespace and comments in
 arch/x86/boot/compressed/vmlinux_??.lds

size reports no change in arch/x86/boot/compressed/vmlinux.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/vmlinux_32.lds | 6 +++---
 arch/x86/boot/compressed/vmlinux_64.lds | 4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/vmlinux_32.lds b/arch/x86/boot/compressed/vmlinux_32.lds
index cc4854f6c6c1..d98ab69a1276 100644
--- a/arch/x86/boot/compressed/vmlinux_32.lds
+++ b/arch/x86/boot/compressed/vmlinux_32.lds
@@ -3,10 +3,10 @@ OUTPUT_ARCH(i386)
 ENTRY(startup_32)
 SECTIONS
 {
-        /* Be careful parts of head.S assume startup_32 is at
-         * address 0.
+	/* Be careful parts of head_32.S assume startup_32 is at
+	 * address 0.
 	 */
-	. =  0 	;
+	. = 0;
 	.text.head : {
 		_head = . ;
 		*(.text.head)
diff --git a/arch/x86/boot/compressed/vmlinux_64.lds b/arch/x86/boot/compressed/vmlinux_64.lds
index 94c13e557fb4..8d63b3a22ce4 100644
--- a/arch/x86/boot/compressed/vmlinux_64.lds
+++ b/arch/x86/boot/compressed/vmlinux_64.lds
@@ -3,8 +3,8 @@ OUTPUT_ARCH(i386:x86-64)
 ENTRY(startup_64)
 SECTIONS
 {
-	/* Be careful parts of head.S assume startup_32 is at
- 	 * address 0.
+	/* Be careful parts of head_64.S assume startup_64 is at
+	 * address 0.
 	 */
 	. = 0;
 	.text :	{
-- 
cgit v1.2.3-59-g8ed1b


From 004426eb295b5fff53ed606d5f7495f23674f2c8 Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Wed, 30 Jan 2008 13:33:37 +0100
Subject: x86: unify whitespace in arch/x86/boot/compressed/vmlinux_??.scr

size reports no change in arch/x86/boot/compressed/vmlinux.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/vmlinux_32.scr | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/vmlinux_32.scr b/arch/x86/boot/compressed/vmlinux_32.scr
index 707a88f7f29e..a54952661995 100644
--- a/arch/x86/boot/compressed/vmlinux_32.scr
+++ b/arch/x86/boot/compressed/vmlinux_32.scr
@@ -2,9 +2,9 @@ SECTIONS
 {
   .data.compressed : {
 	input_len = .;
-	LONG(input_data_end - input_data) input_data = .; 
-	*(.data) 
+	LONG(input_data_end - input_data) input_data = .;
+	*(.data)
 	output_len = . - 4;
-	input_data_end = .; 
+	input_data_end = .;
 	}
 }
-- 
cgit v1.2.3-59-g8ed1b


From 20514e9f6e6221884afada04fbbbde651d3d8654 Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Wed, 30 Jan 2008 13:33:38 +0100
Subject: x86: switch to .rodata.compressed in
 arch/x86/boot/compressed/vmlinux_??.scr

vmlinux_64 and vmlinux_32.scr are now identical

size shows an expected movement from .text to .rodata and 4 extra bytes
of padding.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/vmlinux_32.lds | 4 ++--
 arch/x86/boot/compressed/vmlinux_32.scr | 2 +-
 arch/x86/boot/compressed/vmlinux_64.lds | 8 ++++++--
 arch/x86/boot/compressed/vmlinux_64.scr | 2 +-
 4 files changed, 10 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/vmlinux_32.lds b/arch/x86/boot/compressed/vmlinux_32.lds
index d98ab69a1276..bb3c48379c40 100644
--- a/arch/x86/boot/compressed/vmlinux_32.lds
+++ b/arch/x86/boot/compressed/vmlinux_32.lds
@@ -12,8 +12,8 @@ SECTIONS
 		*(.text.head)
 		_ehead = . ;
 	}
-	.data.compressed : {
-		*(.data.compressed)
+	.rodata.compressed : {
+		*(.rodata.compressed)
 	}
 	.text :	{
 		_text = .; 	/* Text */
diff --git a/arch/x86/boot/compressed/vmlinux_32.scr b/arch/x86/boot/compressed/vmlinux_32.scr
index a54952661995..f02382ae5c48 100644
--- a/arch/x86/boot/compressed/vmlinux_32.scr
+++ b/arch/x86/boot/compressed/vmlinux_32.scr
@@ -1,6 +1,6 @@
 SECTIONS
 {
-  .data.compressed : {
+  .rodata.compressed : {
 	input_len = .;
 	LONG(input_data_end - input_data) input_data = .;
 	*(.data)
diff --git a/arch/x86/boot/compressed/vmlinux_64.lds b/arch/x86/boot/compressed/vmlinux_64.lds
index 8d63b3a22ce4..f6e5b445f457 100644
--- a/arch/x86/boot/compressed/vmlinux_64.lds
+++ b/arch/x86/boot/compressed/vmlinux_64.lds
@@ -7,11 +7,15 @@ SECTIONS
 	 * address 0.
 	 */
 	. = 0;
-	.text :	{
+	.text.head : {
 		_head = . ;
 		*(.text.head)
 		_ehead = . ;
-		*(.text.compressed)
+	}
+	.rodata.compressed : {
+		*(.rodata.compressed)
+	}
+	.text :	{
 		_text = .; 	/* Text */
 		*(.text)
 		*(.text.*)
diff --git a/arch/x86/boot/compressed/vmlinux_64.scr b/arch/x86/boot/compressed/vmlinux_64.scr
index bd1429ce193e..f02382ae5c48 100644
--- a/arch/x86/boot/compressed/vmlinux_64.scr
+++ b/arch/x86/boot/compressed/vmlinux_64.scr
@@ -1,6 +1,6 @@
 SECTIONS
 {
-  .text.compressed : {
+  .rodata.compressed : {
 	input_len = .;
 	LONG(input_data_end - input_data) input_data = .;
 	*(.data)
-- 
cgit v1.2.3-59-g8ed1b


From f18c0e792057059eab9a8ce929af424ff8a4a90f Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Wed, 30 Jan 2008 13:33:38 +0100
Subject: x86: unify arch/x86/boot/compressed/vmlinux_??.scr

The files are now identical so merge them.

size reports no change in arch/x86/boot/compressed/vmlinux.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/Makefile       |  2 +-
 arch/x86/boot/compressed/vmlinux.scr    | 10 ++++++++++
 arch/x86/boot/compressed/vmlinux_32.scr | 10 ----------
 arch/x86/boot/compressed/vmlinux_64.scr | 10 ----------
 4 files changed, 11 insertions(+), 21 deletions(-)
 create mode 100644 arch/x86/boot/compressed/vmlinux.scr
 delete mode 100644 arch/x86/boot/compressed/vmlinux_32.scr
 delete mode 100644 arch/x86/boot/compressed/vmlinux_64.scr

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index d6ae347d11f1..baffeafa798f 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -59,5 +59,5 @@ LDFLAGS_piggy.o := -r --format binary --oformat elf64-x86-64 -T
 endif
 
 
-$(obj)/piggy.o: $(obj)/vmlinux_$(BITS).scr $(obj)/vmlinux.bin.gz FORCE
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
 	$(call if_changed,ld)
diff --git a/arch/x86/boot/compressed/vmlinux.scr b/arch/x86/boot/compressed/vmlinux.scr
new file mode 100644
index 000000000000..f02382ae5c48
--- /dev/null
+++ b/arch/x86/boot/compressed/vmlinux.scr
@@ -0,0 +1,10 @@
+SECTIONS
+{
+  .rodata.compressed : {
+	input_len = .;
+	LONG(input_data_end - input_data) input_data = .;
+	*(.data)
+	output_len = . - 4;
+	input_data_end = .;
+	}
+}
diff --git a/arch/x86/boot/compressed/vmlinux_32.scr b/arch/x86/boot/compressed/vmlinux_32.scr
deleted file mode 100644
index f02382ae5c48..000000000000
--- a/arch/x86/boot/compressed/vmlinux_32.scr
+++ /dev/null
@@ -1,10 +0,0 @@
-SECTIONS
-{
-  .rodata.compressed : {
-	input_len = .;
-	LONG(input_data_end - input_data) input_data = .;
-	*(.data)
-	output_len = . - 4;
-	input_data_end = .;
-	}
-}
diff --git a/arch/x86/boot/compressed/vmlinux_64.scr b/arch/x86/boot/compressed/vmlinux_64.scr
deleted file mode 100644
index f02382ae5c48..000000000000
--- a/arch/x86/boot/compressed/vmlinux_64.scr
+++ /dev/null
@@ -1,10 +0,0 @@
-SECTIONS
-{
-  .rodata.compressed : {
-	input_len = .;
-	LONG(input_data_end - input_data) input_data = .;
-	*(.data)
-	output_len = . - 4;
-	input_data_end = .;
-	}
-}
-- 
cgit v1.2.3-59-g8ed1b


From 6b3c0426a765dcae277ce9eb06d865a2f109cf48 Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Wed, 30 Jan 2008 13:33:38 +0100
Subject: x86: unify strings in arch/x86/boot/compressed/misc_??.c

There seems to be a preference for the 64 bit version so use that on 32 bit and
drop the stray leading "."

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/misc_32.c | 4 ++--
 arch/x86/boot/compressed/misc_64.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/misc_32.c b/arch/x86/boot/compressed/misc_32.c
index 5a0281c81edf..a1979e322ef0 100644
--- a/arch/x86/boot/compressed/misc_32.c
+++ b/arch/x86/boot/compressed/misc_32.c
@@ -377,8 +377,8 @@ asmlinkage void decompress_kernel(void *rmode, unsigned long end,
 #endif
 
 	makecrc();
-	putstr("Uncompressing Linux... ");
+	putstr("\nDecompressing Linux... ");
 	gunzip();
-	putstr("Ok, booting the kernel.\n");
+	putstr("done.\nBooting the kernel.\n");
 	return;
 }
diff --git a/arch/x86/boot/compressed/misc_64.c b/arch/x86/boot/compressed/misc_64.c
index 8c1573b5d6c7..355e31bbaab3 100644
--- a/arch/x86/boot/compressed/misc_64.c
+++ b/arch/x86/boot/compressed/misc_64.c
@@ -372,7 +372,7 @@ asmlinkage void decompress_kernel(void *rmode, unsigned long heap,
 		error("Destination address too large");
 
 	makecrc();
-	putstr(".\nDecompressing Linux...");
+	putstr("\nDecompressing Linux... ");
 	gunzip();
 	putstr("done.\nBooting the kernel.\n");
 	return;
-- 
cgit v1.2.3-59-g8ed1b


From 818a08f8a5681d54532af8263099bb5561afa0c1 Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Wed, 30 Jan 2008 13:33:38 +0100
Subject: x86: unify whitespace and comments in
 arch/x86/boot/compressed/misc_??.c

size reports no change in arch/x86/boot/compressed/vmlinux.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/misc_32.c | 20 +++++++++++++-------
 arch/x86/boot/compressed/misc_64.c | 13 +++++++------
 2 files changed, 20 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/misc_32.c b/arch/x86/boot/compressed/misc_32.c
index a1979e322ef0..52fc214546e9 100644
--- a/arch/x86/boot/compressed/misc_32.c
+++ b/arch/x86/boot/compressed/misc_32.c
@@ -1,7 +1,7 @@
 /*
  * misc.c
- * 
- * This is a collection of several routines from gzip-1.0.3 
+ *
+ * This is a collection of several routines from gzip-1.0.3
  * adapted for Linux.
  *
  * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
@@ -9,6 +9,11 @@
  * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996
  */
 
+/*
+ * we have to be careful, because no indirections are allowed here, and
+ * paravirt_ops is a kind of one. As it will only run in baremetal anyway,
+ * we just keep it from happening
+ */
 #undef CONFIG_PARAVIRT
 #include <linux/linkage.h>
 #include <linux/vmalloc.h>
@@ -261,7 +266,7 @@ static void putstr(const char *s)
 				y--;
 			}
 		} else {
-			vidmem [ ( x + cols * y ) * 2 ] = c;
+			vidmem [(x + cols * y) * 2] = c;
 			if ( ++x >= cols ) {
 				x = 0;
 				if ( ++y >= lines ) {
@@ -345,7 +350,8 @@ static void error(char *x)
 }
 
 asmlinkage void decompress_kernel(void *rmode, unsigned long end,
-			uch *input_data, unsigned long input_len, uch *output)
+				  uch *input_data, unsigned long input_len,
+				  uch *output)
 {
 	real_mode = rmode;
 
@@ -360,10 +366,10 @@ asmlinkage void decompress_kernel(void *rmode, unsigned long end,
 	lines = RM_SCREEN_INFO.orig_video_lines;
 	cols = RM_SCREEN_INFO.orig_video_cols;
 
-	window = output;  	/* Output buffer (Normally at 1M) */
-	free_mem_ptr     = end;	/* Heap  */
+	window = output;		/* Output buffer (Normally at 1M) */
+	free_mem_ptr     = end;		/* Heap */
 	free_mem_end_ptr = end + HEAP_SIZE;
-	inbuf  = input_data;	/* Input buffer */
+	inbuf  = input_data;		/* Input buffer */
 	insize = input_len;
 	inptr  = 0;
 
diff --git a/arch/x86/boot/compressed/misc_64.c b/arch/x86/boot/compressed/misc_64.c
index 355e31bbaab3..5029fb3c5740 100644
--- a/arch/x86/boot/compressed/misc_64.c
+++ b/arch/x86/boot/compressed/misc_64.c
@@ -1,7 +1,7 @@
 /*
  * misc.c
- * 
- * This is a collection of several routines from gzip-1.0.3 
+ *
+ * This is a collection of several routines from gzip-1.0.3
  * adapted for Linux.
  *
  * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
@@ -260,7 +260,7 @@ static void putstr(const char *s)
 				y--;
 			}
 		} else {
-			vidmem [ ( x + cols * y ) * 2 ] = c; 
+			vidmem [(x + cols * y) * 2] = c;
 			if ( ++x >= cols ) {
 				x = 0;
 				if ( ++y >= lines ) {
@@ -344,7 +344,8 @@ static void error(char *x)
 }
 
 asmlinkage void decompress_kernel(void *rmode, unsigned long heap,
-	uch *input_data, unsigned long input_len, uch *output)
+				  uch *input_data, unsigned long input_len,
+				  uch *output)
 {
 	real_mode = rmode;
 
@@ -359,8 +360,8 @@ asmlinkage void decompress_kernel(void *rmode, unsigned long heap,
 	lines = RM_SCREEN_INFO.orig_video_lines;
 	cols = RM_SCREEN_INFO.orig_video_cols;
 
-	window = output;  		/* Output buffer (Normally at 1M) */
-	free_mem_ptr     = heap;	/* Heap  */
+	window = output;		/* Output buffer (Normally at 1M) */
+	free_mem_ptr     = heap;	/* Heap */
 	free_mem_end_ptr = heap + HEAP_SIZE;
 	inbuf  = input_data;		/* Input buffer */
 	insize = input_len;
-- 
cgit v1.2.3-59-g8ed1b


From 8751f97486e071b73240e0a0c08e3b663766e45f Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Wed, 30 Jan 2008 13:33:38 +0100
Subject: x86: unify headers in arch/x86/boot/compressed/misc_??.c

size reports no change in arch/x86/boot/compressed/vmlinux.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/misc_32.c | 1 -
 arch/x86/boot/compressed/misc_64.c | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/misc_32.c b/arch/x86/boot/compressed/misc_32.c
index 52fc214546e9..ad0528a83151 100644
--- a/arch/x86/boot/compressed/misc_32.c
+++ b/arch/x86/boot/compressed/misc_32.c
@@ -16,7 +16,6 @@
  */
 #undef CONFIG_PARAVIRT
 #include <linux/linkage.h>
-#include <linux/vmalloc.h>
 #include <linux/screen_info.h>
 #include <asm/io.h>
 #include <asm/page.h>
diff --git a/arch/x86/boot/compressed/misc_64.c b/arch/x86/boot/compressed/misc_64.c
index 5029fb3c5740..ca760fb69b95 100644
--- a/arch/x86/boot/compressed/misc_64.c
+++ b/arch/x86/boot/compressed/misc_64.c
@@ -22,6 +22,7 @@
 #include <linux/screen_info.h>
 #include <asm/io.h>
 #include <asm/page.h>
+#include <asm/boot.h>
 
 /* WARNING!!
  * This code is compiled with -fPIC and it is relocated dynamically
-- 
cgit v1.2.3-59-g8ed1b


From 4c83d6536e7bcc8c0c1319c66337f3f2c89cd06a Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Wed, 30 Jan 2008 13:33:38 +0100
Subject: x86: unify variable names in arch/x86/boot/compressed/misc_??.c

size reports no change in arch/x86/boot/compressed/vmlinux.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/misc_32.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/misc_32.c b/arch/x86/boot/compressed/misc_32.c
index ad0528a83151..2b1c22de558a 100644
--- a/arch/x86/boot/compressed/misc_32.c
+++ b/arch/x86/boot/compressed/misc_32.c
@@ -348,7 +348,7 @@ static void error(char *x)
 		asm("hlt");
 }
 
-asmlinkage void decompress_kernel(void *rmode, unsigned long end,
+asmlinkage void decompress_kernel(void *rmode, unsigned long heap,
 				  uch *input_data, unsigned long input_len,
 				  uch *output)
 {
@@ -366,15 +366,15 @@ asmlinkage void decompress_kernel(void *rmode, unsigned long end,
 	cols = RM_SCREEN_INFO.orig_video_cols;
 
 	window = output;		/* Output buffer (Normally at 1M) */
-	free_mem_ptr     = end;		/* Heap */
-	free_mem_end_ptr = end + HEAP_SIZE;
+	free_mem_ptr     = heap;	/* Heap */
+	free_mem_end_ptr = heap + HEAP_SIZE;
 	inbuf  = input_data;		/* Input buffer */
 	insize = input_len;
 	inptr  = 0;
 
 	if ((u32)output & (CONFIG_PHYSICAL_ALIGN -1))
 		error("Destination address not CONFIG_PHYSICAL_ALIGN aligned");
-	if (end > ((-__PAGE_OFFSET-(512 <<20)-1) & 0x7fffffff))
+	if (heap > ((-__PAGE_OFFSET-(512<<20)-1) & 0x7fffffff))
 		error("Destination address too large");
 #ifndef CONFIG_RELOCATABLE
 	if ((u32)output != LOAD_PHYSICAL_ADDR)
-- 
cgit v1.2.3-59-g8ed1b


From 778cb929adaef0eb4cce74403c0f918d2751cd8f Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Wed, 30 Jan 2008 13:33:38 +0100
Subject: x86: unify arch/x86/boot/compressed/misc_??.c

Remainder of unification can occur inplace.

size reports no change in arch/x86/boot/compressed/vmlinux.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/boot/compressed/Makefile  |   4 +-
 arch/x86/boot/compressed/misc.c    | 413 +++++++++++++++++++++++++++++++++++++
 arch/x86/boot/compressed/misc_32.c | 389 ----------------------------------
 arch/x86/boot/compressed/misc_64.c | 381 ----------------------------------
 4 files changed, 415 insertions(+), 772 deletions(-)
 create mode 100644 arch/x86/boot/compressed/misc.c
 delete mode 100644 arch/x86/boot/compressed/misc_32.c
 delete mode 100644 arch/x86/boot/compressed/misc_64.c

(limited to 'arch')

diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index baffeafa798f..fe24ceabd909 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -4,7 +4,7 @@
 # create a compressed vmlinux image from the original vmlinux
 #
 
-targets := vmlinux vmlinux.bin vmlinux.bin.gz head_$(BITS).o misc_$(BITS).o piggy.o
+targets := vmlinux vmlinux.bin vmlinux.bin.gz head_$(BITS).o misc.o piggy.o
 
 KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
 KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
@@ -18,7 +18,7 @@ KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
 LDFLAGS := -m elf_$(UTS_MACHINE)
 LDFLAGS_vmlinux := -T
 
-$(obj)/vmlinux: $(src)/vmlinux_$(BITS).lds $(obj)/head_$(BITS).o $(obj)/misc_$(BITS).o $(obj)/piggy.o FORCE
+$(obj)/vmlinux: $(src)/vmlinux_$(BITS).lds $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/piggy.o FORCE
 	$(call if_changed,ld)
 	@:
 
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
new file mode 100644
index 000000000000..8182e32c1b42
--- /dev/null
+++ b/arch/x86/boot/compressed/misc.c
@@ -0,0 +1,413 @@
+/*
+ * misc.c
+ *
+ * This is a collection of several routines from gzip-1.0.3
+ * adapted for Linux.
+ *
+ * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ * puts by Nick Holloway 1993, better puts by Martin Mares 1995
+ * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996
+ */
+
+/*
+ * we have to be careful, because no indirections are allowed here, and
+ * paravirt_ops is a kind of one. As it will only run in baremetal anyway,
+ * we just keep it from happening
+ */
+#undef CONFIG_PARAVIRT
+#ifdef CONFIG_X86_64
+#define _LINUX_STRING_H_ 1
+#define __LINUX_BITMAP_H 1
+#endif
+
+#include <linux/linkage.h>
+#include <linux/screen_info.h>
+#include <asm/io.h>
+#include <asm/page.h>
+#include <asm/boot.h>
+
+/* WARNING!!
+ * This code is compiled with -fPIC and it is relocated dynamically
+ * at run time, but no relocation processing is performed.
+ * This means that it is not safe to place pointers in static structures.
+ */
+
+/*
+ * Getting to provable safe in place decompression is hard.
+ * Worst case behaviours need to be analyzed.
+ * Background information:
+ *
+ * The file layout is:
+ *    magic[2]
+ *    method[1]
+ *    flags[1]
+ *    timestamp[4]
+ *    extraflags[1]
+ *    os[1]
+ *    compressed data blocks[N]
+ *    crc[4] orig_len[4]
+ *
+ * resulting in 18 bytes of non compressed data overhead.
+ *
+ * Files divided into blocks
+ * 1 bit (last block flag)
+ * 2 bits (block type)
+ *
+ * 1 block occurs every 32K -1 bytes or when there 50% compression has been achieved.
+ * The smallest block type encoding is always used.
+ *
+ * stored:
+ *    32 bits length in bytes.
+ *
+ * fixed:
+ *    magic fixed tree.
+ *    symbols.
+ *
+ * dynamic:
+ *    dynamic tree encoding.
+ *    symbols.
+ *
+ *
+ * The buffer for decompression in place is the length of the
+ * uncompressed data, plus a small amount extra to keep the algorithm safe.
+ * The compressed data is placed at the end of the buffer.  The output
+ * pointer is placed at the start of the buffer and the input pointer
+ * is placed where the compressed data starts.  Problems will occur
+ * when the output pointer overruns the input pointer.
+ *
+ * The output pointer can only overrun the input pointer if the input
+ * pointer is moving faster than the output pointer.  A condition only
+ * triggered by data whose compressed form is larger than the uncompressed
+ * form.
+ *
+ * The worst case at the block level is a growth of the compressed data
+ * of 5 bytes per 32767 bytes.
+ *
+ * The worst case internal to a compressed block is very hard to figure.
+ * The worst case can at least be boundined by having one bit that represents
+ * 32764 bytes and then all of the rest of the bytes representing the very
+ * very last byte.
+ *
+ * All of which is enough to compute an amount of extra data that is required
+ * to be safe.  To avoid problems at the block level allocating 5 extra bytes
+ * per 32767 bytes of data is sufficient.  To avoind problems internal to a block
+ * adding an extra 32767 bytes (the worst case uncompressed block size) is
+ * sufficient, to ensure that in the worst case the decompressed data for
+ * block will stop the byte before the compressed data for a block begins.
+ * To avoid problems with the compressed data's meta information an extra 18
+ * bytes are needed.  Leading to the formula:
+ *
+ * extra_bytes = (uncompressed_size >> 12) + 32768 + 18 + decompressor_size.
+ *
+ * Adding 8 bytes per 32K is a bit excessive but much easier to calculate.
+ * Adding 32768 instead of 32767 just makes for round numbers.
+ * Adding the decompressor_size is necessary as it musht live after all
+ * of the data as well.  Last I measured the decompressor is about 14K.
+ * 10K of actual data and 4K of bss.
+ *
+ */
+
+/*
+ * gzip declarations
+ */
+
+#define OF(args)  args
+#define STATIC static
+
+#undef memset
+#undef memcpy
+#define memzero(s, n)     memset ((s), 0, (n))
+
+typedef unsigned char  uch;
+typedef unsigned short ush;
+typedef unsigned long  ulg;
+
+#define WSIZE 0x80000000	/* Window size must be at least 32k,
+				 * and a power of two
+				 * We don't actually have a window just
+				 * a huge output buffer so I report
+				 * a 2G windows size, as that should
+				 * always be larger than our output buffer.
+				 */
+
+static uch *inbuf;	/* input buffer */
+static uch *window;	/* Sliding window buffer, (and final output buffer) */
+
+static unsigned insize;  /* valid bytes in inbuf */
+static unsigned inptr;   /* index of next byte to be processed in inbuf */
+static unsigned outcnt;  /* bytes in output buffer */
+
+/* gzip flag byte */
+#define ASCII_FLAG   0x01 /* bit 0 set: file probably ASCII text */
+#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
+#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
+#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
+#define COMMENT      0x10 /* bit 4 set: file comment present */
+#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
+#define RESERVED     0xC0 /* bit 6,7:   reserved */
+
+#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
+		
+/* Diagnostic functions */
+#ifdef DEBUG
+#  define Assert(cond,msg) {if(!(cond)) error(msg);}
+#  define Trace(x) fprintf x
+#  define Tracev(x) {if (verbose) fprintf x ;}
+#  define Tracevv(x) {if (verbose>1) fprintf x ;}
+#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
+#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+static int  fill_inbuf(void);
+static void flush_window(void);
+static void error(char *m);
+static void gzip_mark(void **);
+static void gzip_release(void **);
+  
+/*
+ * This is set up by the setup-routine at boot-time
+ */
+static unsigned char *real_mode; /* Pointer to real-mode data */
+
+#define RM_EXT_MEM_K   (*(unsigned short *)(real_mode + 0x2))
+#ifndef STANDARD_MEMORY_BIOS_CALL
+#define RM_ALT_MEM_K   (*(unsigned long *)(real_mode + 0x1e0))
+#endif
+#define RM_SCREEN_INFO (*(struct screen_info *)(real_mode+0))
+
+extern unsigned char input_data[];
+extern int input_len;
+
+static long bytes_out = 0;
+
+static void *malloc(int size);
+static void free(void *where);
+
+static void *memset(void *s, int c, unsigned n);
+static void *memcpy(void *dest, const void *src, unsigned n);
+
+static void putstr(const char *);
+
+#ifdef CONFIG_X86_64
+#define memptr long
+#else
+#define memptr unsigned
+#endif
+
+static memptr free_mem_ptr;
+static memptr free_mem_end_ptr;
+
+#ifdef CONFIG_X86_64
+#define HEAP_SIZE             0x7000
+#else
+#define HEAP_SIZE             0x4000
+#endif
+
+static char *vidmem = (char *)0xb8000;
+static int vidport;
+static int lines, cols;
+
+#ifdef CONFIG_X86_NUMAQ
+void *xquad_portio;
+#endif
+
+#include "../../../../lib/inflate.c"
+
+static void *malloc(int size)
+{
+	void *p;
+
+	if (size <0) error("Malloc error");
+	if (free_mem_ptr <= 0) error("Memory error");
+
+	free_mem_ptr = (free_mem_ptr + 3) & ~3;	/* Align */
+
+	p = (void *)free_mem_ptr;
+	free_mem_ptr += size;
+
+	if (free_mem_ptr >= free_mem_end_ptr)
+		error("Out of memory");
+
+	return p;
+}
+
+static void free(void *where)
+{	/* Don't care */
+}
+
+static void gzip_mark(void **ptr)
+{
+	*ptr = (void *) free_mem_ptr;
+}
+
+static void gzip_release(void **ptr)
+{
+	free_mem_ptr = (memptr) *ptr;
+}
+ 
+static void scroll(void)
+{
+	int i;
+
+	memcpy ( vidmem, vidmem + cols * 2, ( lines - 1 ) * cols * 2 );
+	for ( i = ( lines - 1 ) * cols * 2; i < lines * cols * 2; i += 2 )
+		vidmem[i] = ' ';
+}
+
+static void putstr(const char *s)
+{
+	int x,y,pos;
+	char c;
+
+#ifdef CONFIG_X86_32
+	if (RM_SCREEN_INFO.orig_video_mode == 0 && lines == 0 && cols == 0)
+		return;
+#endif
+
+	x = RM_SCREEN_INFO.orig_x;
+	y = RM_SCREEN_INFO.orig_y;
+
+	while ( ( c = *s++ ) != '\0' ) {
+		if ( c == '\n' ) {
+			x = 0;
+			if ( ++y >= lines ) {
+				scroll();
+				y--;
+			}
+		} else {
+			vidmem [(x + cols * y) * 2] = c;
+			if ( ++x >= cols ) {
+				x = 0;
+				if ( ++y >= lines ) {
+					scroll();
+					y--;
+				}
+			}
+		}
+	}
+
+	RM_SCREEN_INFO.orig_x = x;
+	RM_SCREEN_INFO.orig_y = y;
+
+	pos = (x + cols * y) * 2;	/* Update cursor position */
+	outb(14, vidport);
+	outb(0xff & (pos >> 9), vidport+1);
+	outb(15, vidport);
+	outb(0xff & (pos >> 1), vidport+1);
+}
+
+static void* memset(void* s, int c, unsigned n)
+{
+	int i;
+	char *ss = s;
+
+	for (i=0;i<n;i++) ss[i] = c;
+	return s;
+}
+
+static void* memcpy(void* dest, const void* src, unsigned n)
+{
+	int i;
+	const char *s = src;
+	char *d = dest;
+
+	for (i=0;i<n;i++) d[i] = s[i];
+	return dest;
+}
+
+/* ===========================================================================
+ * Fill the input buffer. This is called only when the buffer is empty
+ * and at least one byte is really needed.
+ */
+static int fill_inbuf(void)
+{
+	error("ran out of input data");
+	return 0;
+}
+
+/* ===========================================================================
+ * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+ * (Used for the decompressed data only.)
+ */
+static void flush_window(void)
+{
+	/* With my window equal to my output buffer
+	 * I only need to compute the crc here.
+	 */
+	ulg c = crc;         /* temporary variable */
+	unsigned n;
+	uch *in, ch;
+
+	in = window;
+	for (n = 0; n < outcnt; n++) {
+		ch = *in++;
+		c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
+	}
+	crc = c;
+	bytes_out += (ulg)outcnt;
+	outcnt = 0;
+}
+
+static void error(char *x)
+{
+	putstr("\n\n");
+	putstr(x);
+	putstr("\n\n -- System halted");
+
+	while (1)
+		asm("hlt");
+}
+
+asmlinkage void decompress_kernel(void *rmode, memptr heap,
+				  uch *input_data, unsigned long input_len,
+				  uch *output)
+{
+	real_mode = rmode;
+
+	if (RM_SCREEN_INFO.orig_video_mode == 7) {
+		vidmem = (char *) 0xb0000;
+		vidport = 0x3b4;
+	} else {
+		vidmem = (char *) 0xb8000;
+		vidport = 0x3d4;
+	}
+
+	lines = RM_SCREEN_INFO.orig_video_lines;
+	cols = RM_SCREEN_INFO.orig_video_cols;
+
+	window = output;		/* Output buffer (Normally at 1M) */
+	free_mem_ptr     = heap;	/* Heap */
+	free_mem_end_ptr = heap + HEAP_SIZE;
+	inbuf  = input_data;		/* Input buffer */
+	insize = input_len;
+	inptr  = 0;
+
+#ifdef CONFIG_X86_64
+	if ((ulg)output & (__KERNEL_ALIGN - 1))
+		error("Destination address not 2M aligned");
+	if ((ulg)output >= 0xffffffffffUL)
+		error("Destination address too large");
+#else
+	if ((u32)output & (CONFIG_PHYSICAL_ALIGN -1))
+		error("Destination address not CONFIG_PHYSICAL_ALIGN aligned");
+	if (heap > ((-__PAGE_OFFSET-(512<<20)-1) & 0x7fffffff))
+		error("Destination address too large");
+#ifndef CONFIG_RELOCATABLE
+	if ((u32)output != LOAD_PHYSICAL_ADDR)
+		error("Wrong destination address");
+#endif
+#endif
+
+	makecrc();
+	putstr("\nDecompressing Linux... ");
+	gunzip();
+	putstr("done.\nBooting the kernel.\n");
+	return;
+}
diff --git a/arch/x86/boot/compressed/misc_32.c b/arch/x86/boot/compressed/misc_32.c
deleted file mode 100644
index 2b1c22de558a..000000000000
--- a/arch/x86/boot/compressed/misc_32.c
+++ /dev/null
@@ -1,389 +0,0 @@
-/*
- * misc.c
- *
- * This is a collection of several routines from gzip-1.0.3
- * adapted for Linux.
- *
- * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
- * puts by Nick Holloway 1993, better puts by Martin Mares 1995
- * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996
- */
-
-/*
- * we have to be careful, because no indirections are allowed here, and
- * paravirt_ops is a kind of one. As it will only run in baremetal anyway,
- * we just keep it from happening
- */
-#undef CONFIG_PARAVIRT
-#include <linux/linkage.h>
-#include <linux/screen_info.h>
-#include <asm/io.h>
-#include <asm/page.h>
-#include <asm/boot.h>
-
-/* WARNING!!
- * This code is compiled with -fPIC and it is relocated dynamically
- * at run time, but no relocation processing is performed.
- * This means that it is not safe to place pointers in static structures.
- */
-
-/*
- * Getting to provable safe in place decompression is hard.
- * Worst case behaviours need to be analyzed.
- * Background information:
- *
- * The file layout is:
- *    magic[2]
- *    method[1]
- *    flags[1]
- *    timestamp[4]
- *    extraflags[1]
- *    os[1]
- *    compressed data blocks[N]
- *    crc[4] orig_len[4]
- *
- * resulting in 18 bytes of non compressed data overhead.
- *
- * Files divided into blocks
- * 1 bit (last block flag)
- * 2 bits (block type)
- *
- * 1 block occurs every 32K -1 bytes or when there 50% compression has been achieved.
- * The smallest block type encoding is always used.
- *
- * stored:
- *    32 bits length in bytes.
- *
- * fixed:
- *    magic fixed tree.
- *    symbols.
- *
- * dynamic:
- *    dynamic tree encoding.
- *    symbols.
- *
- *
- * The buffer for decompression in place is the length of the
- * uncompressed data, plus a small amount extra to keep the algorithm safe.
- * The compressed data is placed at the end of the buffer.  The output
- * pointer is placed at the start of the buffer and the input pointer
- * is placed where the compressed data starts.  Problems will occur
- * when the output pointer overruns the input pointer.
- *
- * The output pointer can only overrun the input pointer if the input
- * pointer is moving faster than the output pointer.  A condition only
- * triggered by data whose compressed form is larger than the uncompressed
- * form.
- *
- * The worst case at the block level is a growth of the compressed data
- * of 5 bytes per 32767 bytes.
- *
- * The worst case internal to a compressed block is very hard to figure.
- * The worst case can at least be boundined by having one bit that represents
- * 32764 bytes and then all of the rest of the bytes representing the very
- * very last byte.
- *
- * All of which is enough to compute an amount of extra data that is required
- * to be safe.  To avoid problems at the block level allocating 5 extra bytes
- * per 32767 bytes of data is sufficient.  To avoind problems internal to a block
- * adding an extra 32767 bytes (the worst case uncompressed block size) is
- * sufficient, to ensure that in the worst case the decompressed data for
- * block will stop the byte before the compressed data for a block begins.
- * To avoid problems with the compressed data's meta information an extra 18
- * bytes are needed.  Leading to the formula:
- *
- * extra_bytes = (uncompressed_size >> 12) + 32768 + 18 + decompressor_size.
- *
- * Adding 8 bytes per 32K is a bit excessive but much easier to calculate.
- * Adding 32768 instead of 32767 just makes for round numbers.
- * Adding the decompressor_size is necessary as it musht live after all
- * of the data as well.  Last I measured the decompressor is about 14K.
- * 10K of actual data and 4K of bss.
- *
- */
-
-/*
- * gzip declarations
- */
-
-#define OF(args)  args
-#define STATIC static
-
-#undef memset
-#undef memcpy
-#define memzero(s, n)     memset ((s), 0, (n))
-
-typedef unsigned char  uch;
-typedef unsigned short ush;
-typedef unsigned long  ulg;
-
-#define WSIZE 0x80000000	/* Window size must be at least 32k,
-				 * and a power of two
-				 * We don't actually have a window just
-				 * a huge output buffer so I report
-				 * a 2G windows size, as that should
-				 * always be larger than our output buffer.
-				 */
-
-static uch *inbuf;	/* input buffer */
-static uch *window;	/* Sliding window buffer, (and final output buffer) */
-
-static unsigned insize;  /* valid bytes in inbuf */
-static unsigned inptr;   /* index of next byte to be processed in inbuf */
-static unsigned outcnt;  /* bytes in output buffer */
-
-/* gzip flag byte */
-#define ASCII_FLAG   0x01 /* bit 0 set: file probably ASCII text */
-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
-#define COMMENT      0x10 /* bit 4 set: file comment present */
-#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
-#define RESERVED     0xC0 /* bit 6,7:   reserved */
-
-#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
-		
-/* Diagnostic functions */
-#ifdef DEBUG
-#  define Assert(cond,msg) {if(!(cond)) error(msg);}
-#  define Trace(x) fprintf x
-#  define Tracev(x) {if (verbose) fprintf x ;}
-#  define Tracevv(x) {if (verbose>1) fprintf x ;}
-#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
-#else
-#  define Assert(cond,msg)
-#  define Trace(x)
-#  define Tracev(x)
-#  define Tracevv(x)
-#  define Tracec(c,x)
-#  define Tracecv(c,x)
-#endif
-
-static int  fill_inbuf(void);
-static void flush_window(void);
-static void error(char *m);
-static void gzip_mark(void **);
-static void gzip_release(void **);
-  
-/*
- * This is set up by the setup-routine at boot-time
- */
-static unsigned char *real_mode; /* Pointer to real-mode data */
-
-#define RM_EXT_MEM_K   (*(unsigned short *)(real_mode + 0x2))
-#ifndef STANDARD_MEMORY_BIOS_CALL
-#define RM_ALT_MEM_K   (*(unsigned long *)(real_mode + 0x1e0))
-#endif
-#define RM_SCREEN_INFO (*(struct screen_info *)(real_mode+0))
-
-extern unsigned char input_data[];
-extern int input_len;
-
-static long bytes_out = 0;
-
-static void *malloc(int size);
-static void free(void *where);
-
-static void *memset(void *s, int c, unsigned n);
-static void *memcpy(void *dest, const void *src, unsigned n);
-
-static void putstr(const char *);
-
-static unsigned long free_mem_ptr;
-static unsigned long free_mem_end_ptr;
-
-#define HEAP_SIZE             0x4000
-
-static char *vidmem = (char *)0xb8000;
-static int vidport;
-static int lines, cols;
-
-#ifdef CONFIG_X86_NUMAQ
-void *xquad_portio;
-#endif
-
-#include "../../../../lib/inflate.c"
-
-static void *malloc(int size)
-{
-	void *p;
-
-	if (size <0) error("Malloc error");
-	if (free_mem_ptr <= 0) error("Memory error");
-
-	free_mem_ptr = (free_mem_ptr + 3) & ~3;	/* Align */
-
-	p = (void *)free_mem_ptr;
-	free_mem_ptr += size;
-
-	if (free_mem_ptr >= free_mem_end_ptr)
-		error("Out of memory");
-
-	return p;
-}
-
-static void free(void *where)
-{	/* Don't care */
-}
-
-static void gzip_mark(void **ptr)
-{
-	*ptr = (void *) free_mem_ptr;
-}
-
-static void gzip_release(void **ptr)
-{
-	free_mem_ptr = (unsigned long) *ptr;
-}
- 
-static void scroll(void)
-{
-	int i;
-
-	memcpy ( vidmem, vidmem + cols * 2, ( lines - 1 ) * cols * 2 );
-	for ( i = ( lines - 1 ) * cols * 2; i < lines * cols * 2; i += 2 )
-		vidmem[i] = ' ';
-}
-
-static void putstr(const char *s)
-{
-	int x,y,pos;
-	char c;
-
-	if (RM_SCREEN_INFO.orig_video_mode == 0 && lines == 0 && cols == 0)
-		return;
-
-	x = RM_SCREEN_INFO.orig_x;
-	y = RM_SCREEN_INFO.orig_y;
-
-	while ( ( c = *s++ ) != '\0' ) {
-		if ( c == '\n' ) {
-			x = 0;
-			if ( ++y >= lines ) {
-				scroll();
-				y--;
-			}
-		} else {
-			vidmem [(x + cols * y) * 2] = c;
-			if ( ++x >= cols ) {
-				x = 0;
-				if ( ++y >= lines ) {
-					scroll();
-					y--;
-				}
-			}
-		}
-	}
-
-	RM_SCREEN_INFO.orig_x = x;
-	RM_SCREEN_INFO.orig_y = y;
-
-	pos = (x + cols * y) * 2;	/* Update cursor position */
-	outb(14, vidport);
-	outb(0xff & (pos >> 9), vidport+1);
-	outb(15, vidport);
-	outb(0xff & (pos >> 1), vidport+1);
-}
-
-static void* memset(void* s, int c, unsigned n)
-{
-	int i;
-	char *ss = s;
-
-	for (i=0;i<n;i++) ss[i] = c;
-	return s;
-}
-
-static void* memcpy(void* dest, const void* src, unsigned n)
-{
-	int i;
-	const char *s = src;
-	char *d = dest;
-
-	for (i=0;i<n;i++) d[i] = s[i];
-	return dest;
-}
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty
- * and at least one byte is really needed.
- */
-static int fill_inbuf(void)
-{
-	error("ran out of input data");
-	return 0;
-}
-
-/* ===========================================================================
- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
- * (Used for the decompressed data only.)
- */
-static void flush_window(void)
-{
-	/* With my window equal to my output buffer
-	 * I only need to compute the crc here.
-	 */
-	ulg c = crc;         /* temporary variable */
-	unsigned n;
-	uch *in, ch;
-
-	in = window;
-	for (n = 0; n < outcnt; n++) {
-		ch = *in++;
-		c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
-	}
-	crc = c;
-	bytes_out += (ulg)outcnt;
-	outcnt = 0;
-}
-
-static void error(char *x)
-{
-	putstr("\n\n");
-	putstr(x);
-	putstr("\n\n -- System halted");
-
-	while (1)
-		asm("hlt");
-}
-
-asmlinkage void decompress_kernel(void *rmode, unsigned long heap,
-				  uch *input_data, unsigned long input_len,
-				  uch *output)
-{
-	real_mode = rmode;
-
-	if (RM_SCREEN_INFO.orig_video_mode == 7) {
-		vidmem = (char *) 0xb0000;
-		vidport = 0x3b4;
-	} else {
-		vidmem = (char *) 0xb8000;
-		vidport = 0x3d4;
-	}
-
-	lines = RM_SCREEN_INFO.orig_video_lines;
-	cols = RM_SCREEN_INFO.orig_video_cols;
-
-	window = output;		/* Output buffer (Normally at 1M) */
-	free_mem_ptr     = heap;	/* Heap */
-	free_mem_end_ptr = heap + HEAP_SIZE;
-	inbuf  = input_data;		/* Input buffer */
-	insize = input_len;
-	inptr  = 0;
-
-	if ((u32)output & (CONFIG_PHYSICAL_ALIGN -1))
-		error("Destination address not CONFIG_PHYSICAL_ALIGN aligned");
-	if (heap > ((-__PAGE_OFFSET-(512<<20)-1) & 0x7fffffff))
-		error("Destination address too large");
-#ifndef CONFIG_RELOCATABLE
-	if ((u32)output != LOAD_PHYSICAL_ADDR)
-		error("Wrong destination address");
-#endif
-
-	makecrc();
-	putstr("\nDecompressing Linux... ");
-	gunzip();
-	putstr("done.\nBooting the kernel.\n");
-	return;
-}
diff --git a/arch/x86/boot/compressed/misc_64.c b/arch/x86/boot/compressed/misc_64.c
deleted file mode 100644
index ca760fb69b95..000000000000
--- a/arch/x86/boot/compressed/misc_64.c
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * misc.c
- *
- * This is a collection of several routines from gzip-1.0.3
- * adapted for Linux.
- *
- * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
- * puts by Nick Holloway 1993, better puts by Martin Mares 1995
- * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996
- */
-
-/*
- * we have to be careful, because no indirections are allowed here, and
- * paravirt_ops is a kind of one. As it will only run in baremetal anyway,
- * we just keep it from happening
- */
-#undef CONFIG_PARAVIRT
-#define _LINUX_STRING_H_ 1
-#define __LINUX_BITMAP_H 1
-
-#include <linux/linkage.h>
-#include <linux/screen_info.h>
-#include <asm/io.h>
-#include <asm/page.h>
-#include <asm/boot.h>
-
-/* WARNING!!
- * This code is compiled with -fPIC and it is relocated dynamically
- * at run time, but no relocation processing is performed.
- * This means that it is not safe to place pointers in static structures.
- */
-
-/*
- * Getting to provable safe in place decompression is hard.
- * Worst case behaviours need to be analyzed.
- * Background information:
- *
- * The file layout is:
- *    magic[2]
- *    method[1]
- *    flags[1]
- *    timestamp[4]
- *    extraflags[1]
- *    os[1]
- *    compressed data blocks[N]
- *    crc[4] orig_len[4]
- *
- * resulting in 18 bytes of non compressed data overhead.
- *
- * Files divided into blocks
- * 1 bit (last block flag)
- * 2 bits (block type)
- *
- * 1 block occurs every 32K -1 bytes or when there 50% compression has been achieved.
- * The smallest block type encoding is always used.
- *
- * stored:
- *    32 bits length in bytes.
- *
- * fixed:
- *    magic fixed tree.
- *    symbols.
- *
- * dynamic:
- *    dynamic tree encoding.
- *    symbols.
- *
- *
- * The buffer for decompression in place is the length of the
- * uncompressed data, plus a small amount extra to keep the algorithm safe.
- * The compressed data is placed at the end of the buffer.  The output
- * pointer is placed at the start of the buffer and the input pointer
- * is placed where the compressed data starts.  Problems will occur
- * when the output pointer overruns the input pointer.
- *
- * The output pointer can only overrun the input pointer if the input
- * pointer is moving faster than the output pointer.  A condition only
- * triggered by data whose compressed form is larger than the uncompressed
- * form.
- *
- * The worst case at the block level is a growth of the compressed data
- * of 5 bytes per 32767 bytes.
- *
- * The worst case internal to a compressed block is very hard to figure.
- * The worst case can at least be boundined by having one bit that represents
- * 32764 bytes and then all of the rest of the bytes representing the very
- * very last byte.
- *
- * All of which is enough to compute an amount of extra data that is required
- * to be safe.  To avoid problems at the block level allocating 5 extra bytes
- * per 32767 bytes of data is sufficient.  To avoind problems internal to a block
- * adding an extra 32767 bytes (the worst case uncompressed block size) is
- * sufficient, to ensure that in the worst case the decompressed data for
- * block will stop the byte before the compressed data for a block begins.
- * To avoid problems with the compressed data's meta information an extra 18
- * bytes are needed.  Leading to the formula:
- *
- * extra_bytes = (uncompressed_size >> 12) + 32768 + 18 + decompressor_size.
- *
- * Adding 8 bytes per 32K is a bit excessive but much easier to calculate.
- * Adding 32768 instead of 32767 just makes for round numbers.
- * Adding the decompressor_size is necessary as it musht live after all
- * of the data as well.  Last I measured the decompressor is about 14K.
- * 10K of actual data and 4K of bss.
- *
- */
-
-/*
- * gzip declarations
- */
-
-#define OF(args)  args
-#define STATIC static
-
-#undef memset
-#undef memcpy
-#define memzero(s, n)     memset ((s), 0, (n))
-
-typedef unsigned char  uch;
-typedef unsigned short ush;
-typedef unsigned long  ulg;
-
-#define WSIZE 0x80000000	/* Window size must be at least 32k,
-				 * and a power of two
-				 * We don't actually have a window just
-				 * a huge output buffer so I report
-				 * a 2G windows size, as that should
-				 * always be larger than our output buffer.
-				 */
-
-static uch *inbuf;	/* input buffer */
-static uch *window;	/* Sliding window buffer, (and final output buffer) */
-
-static unsigned insize;  /* valid bytes in inbuf */
-static unsigned inptr;   /* index of next byte to be processed in inbuf */
-static unsigned outcnt;  /* bytes in output buffer */
-
-/* gzip flag byte */
-#define ASCII_FLAG   0x01 /* bit 0 set: file probably ASCII text */
-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
-#define COMMENT      0x10 /* bit 4 set: file comment present */
-#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
-#define RESERVED     0xC0 /* bit 6,7:   reserved */
-
-#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
-		
-/* Diagnostic functions */
-#ifdef DEBUG
-#  define Assert(cond,msg) {if(!(cond)) error(msg);}
-#  define Trace(x) fprintf x
-#  define Tracev(x) {if (verbose) fprintf x ;}
-#  define Tracevv(x) {if (verbose>1) fprintf x ;}
-#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
-#else
-#  define Assert(cond,msg)
-#  define Trace(x)
-#  define Tracev(x)
-#  define Tracevv(x)
-#  define Tracec(c,x)
-#  define Tracecv(c,x)
-#endif
-
-static int  fill_inbuf(void);
-static void flush_window(void);
-static void error(char *m);
-static void gzip_mark(void **);
-static void gzip_release(void **);
-  
-/*
- * This is set up by the setup-routine at boot-time
- */
-static unsigned char *real_mode; /* Pointer to real-mode data */
-
-#define RM_EXT_MEM_K   (*(unsigned short *)(real_mode + 0x2))
-#ifndef STANDARD_MEMORY_BIOS_CALL
-#define RM_ALT_MEM_K   (*(unsigned long *)(real_mode + 0x1e0))
-#endif
-#define RM_SCREEN_INFO (*(struct screen_info *)(real_mode+0))
-
-extern unsigned char input_data[];
-extern int input_len;
-
-static long bytes_out = 0;
-
-static void *malloc(int size);
-static void free(void *where);
-
-static void *memset(void *s, int c, unsigned n);
-static void *memcpy(void *dest, const void *src, unsigned n);
-
-static void putstr(const char *);
-
-static long free_mem_ptr;
-static long free_mem_end_ptr;
-
-#define HEAP_SIZE             0x7000
-
-static char *vidmem = (char *)0xb8000;
-static int vidport;
-static int lines, cols;
-
-#include "../../../../lib/inflate.c"
-
-static void *malloc(int size)
-{
-	void *p;
-
-	if (size <0) error("Malloc error");
-	if (free_mem_ptr <= 0) error("Memory error");
-
-	free_mem_ptr = (free_mem_ptr + 3) & ~3;	/* Align */
-
-	p = (void *)free_mem_ptr;
-	free_mem_ptr += size;
-
-	if (free_mem_ptr >= free_mem_end_ptr)
-		error("Out of memory");
-
-	return p;
-}
-
-static void free(void *where)
-{	/* Don't care */
-}
-
-static void gzip_mark(void **ptr)
-{
-	*ptr = (void *) free_mem_ptr;
-}
-
-static void gzip_release(void **ptr)
-{
-	free_mem_ptr = (long) *ptr;
-}
- 
-static void scroll(void)
-{
-	int i;
-
-	memcpy ( vidmem, vidmem + cols * 2, ( lines - 1 ) * cols * 2 );
-	for ( i = ( lines - 1 ) * cols * 2; i < lines * cols * 2; i += 2 )
-		vidmem[i] = ' ';
-}
-
-static void putstr(const char *s)
-{
-	int x,y,pos;
-	char c;
-
-	x = RM_SCREEN_INFO.orig_x;
-	y = RM_SCREEN_INFO.orig_y;
-
-	while ( ( c = *s++ ) != '\0' ) {
-		if ( c == '\n' ) {
-			x = 0;
-			if ( ++y >= lines ) {
-				scroll();
-				y--;
-			}
-		} else {
-			vidmem [(x + cols * y) * 2] = c;
-			if ( ++x >= cols ) {
-				x = 0;
-				if ( ++y >= lines ) {
-					scroll();
-					y--;
-				}
-			}
-		}
-	}
-
-	RM_SCREEN_INFO.orig_x = x;
-	RM_SCREEN_INFO.orig_y = y;
-
-	pos = (x + cols * y) * 2;	/* Update cursor position */
-	outb(14, vidport);
-	outb(0xff & (pos >> 9), vidport+1);
-	outb(15, vidport);
-	outb(0xff & (pos >> 1), vidport+1);
-}
-
-static void* memset(void* s, int c, unsigned n)
-{
-	int i;
-	char *ss = s;
-
-	for (i=0;i<n;i++) ss[i] = c;
-	return s;
-}
-
-static void* memcpy(void* dest, const void* src, unsigned n)
-{
-	int i;
-	const char *s = src;
-	char *d = dest;
-
-	for (i=0;i<n;i++) d[i] = s[i];
-	return dest;
-}
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty
- * and at least one byte is really needed.
- */
-static int fill_inbuf(void)
-{
-	error("ran out of input data");
-	return 0;
-}
-
-/* ===========================================================================
- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
- * (Used for the decompressed data only.)
- */
-static void flush_window(void)
-{
-	/* With my window equal to my output buffer
-	 * I only need to compute the crc here.
-	 */
-	ulg c = crc;         /* temporary variable */
-	unsigned n;
-	uch *in, ch;
-
-	in = window;
-	for (n = 0; n < outcnt; n++) {
-		ch = *in++;
-		c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
-	}
-	crc = c;
-	bytes_out += (ulg)outcnt;
-	outcnt = 0;
-}
-
-static void error(char *x)
-{
-	putstr("\n\n");
-	putstr(x);
-	putstr("\n\n -- System halted");
-
-	while (1)
-		asm("hlt");
-}
-
-asmlinkage void decompress_kernel(void *rmode, unsigned long heap,
-				  uch *input_data, unsigned long input_len,
-				  uch *output)
-{
-	real_mode = rmode;
-
-	if (RM_SCREEN_INFO.orig_video_mode == 7) {
-		vidmem = (char *) 0xb0000;
-		vidport = 0x3b4;
-	} else {
-		vidmem = (char *) 0xb8000;
-		vidport = 0x3d4;
-	}
-
-	lines = RM_SCREEN_INFO.orig_video_lines;
-	cols = RM_SCREEN_INFO.orig_video_cols;
-
-	window = output;		/* Output buffer (Normally at 1M) */
-	free_mem_ptr     = heap;	/* Heap */
-	free_mem_end_ptr = heap + HEAP_SIZE;
-	inbuf  = input_data;		/* Input buffer */
-	insize = input_len;
-	inptr  = 0;
-
-	if ((ulg)output & (__KERNEL_ALIGN - 1))
-		error("Destination address not 2M aligned");
-	if ((ulg)output >= 0xffffffffffUL)
-		error("Destination address too large");
-
-	makecrc();
-	putstr("\nDecompressing Linux... ");
-	gunzip();
-	putstr("done.\nBooting the kernel.\n");
-	return;
-}
-- 
cgit v1.2.3-59-g8ed1b


From 07035f076febf5fd791edbdac0e6d3f2f0e00a01 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:33:38 +0100
Subject: x86: not set boot cpu in cpu_present_map again

in init/main.c boot_cpu_init() already does that before setup_arch

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_64.c | 6 ------
 1 file changed, 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index c9b7f44ea497..4ccad185ab7e 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -414,12 +414,6 @@ void __init setup_arch(char **cmdline_p)
 
 	early_quirks();
 
-	/*
-	 * set this early, so we dont allocate cpu0
-	 * if MADT list doesnt list BSP first
-	 * mpparse.c/MP_processor_info() allocates logical cpu numbers.
-	 */
-	cpu_set(0, cpu_present_map);
 #ifdef CONFIG_ACPI
 	/*
 	 * Read APIC and some other early information from ACPI tables.
-- 
cgit v1.2.3-59-g8ed1b


From 23916d49155552767726f116daf32dfb2aa3af23 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:33:39 +0100
Subject: x86: not set boot cpu in cpu_online_map in smp_prepare_boot_cpu()

in init/main.c boot_cpu_init() does that before.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/smpboot_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index 4e14ecb90764..cc64b8085c2a 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -921,7 +921,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 void __init smp_prepare_boot_cpu(void)
 {
 	int me = smp_processor_id();
-	cpu_set(me, cpu_online_map);
+	/* already set me in cpu_online_map in boot_cpu_init() */
 	cpu_set(me, cpu_callout_map);
 	per_cpu(cpu_state, me) = CPU_ONLINE;
 }
-- 
cgit v1.2.3-59-g8ed1b


From dff244af014144e4ac87dfc5b6e450dc8832710e Mon Sep 17 00:00:00 2001
From: Alistair John Strachan <alistair@devzero.co.uk>
Date: Wed, 30 Jan 2008 13:33:39 +0100
Subject: x86: force enable HPET on (some?) ICH9 boards

Some consumer ICH9 boards (such as the Abit IP35 Pro) do not provide a BIOS
option for enabling the HPET. The same ICH workaround used for 6,7,8 can be
applied to 9. Here I enable the only PCI id that was visible on my system.

I have confirmed the HPETs work both from userspace and as a clocksource for
the running kernel (2.6.24 here) after applying this patch.

 Force enabled HPET at base address 0xfed00000
 hpet clockevent registered
 hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0
 hpet0: 4 64-bit timers, 14318180 Hz

Signed-off-by: Alistair John Strachan <alistair@devzero.co.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/quirks.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index fab30e134836..150ba29a0d33 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -162,6 +162,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31,
 			 ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1,
 			 ich_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7,
+			 ich_force_enable_hpet);
 
 
 static struct pci_dev *cached_dev;
-- 
cgit v1.2.3-59-g8ed1b


From 261a5ec36befbe6bae069be14f45e618dcd35146 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:33:39 +0100
Subject: x86: change aper valid checking sequence

old sequence:
  size ==> >4G  ==> point to RAM

changed to:
  >4G ==> point to RAM ==> size

some bios even leave aper to unclear, so check size at last.

To avoid reporting:

  Node 0: Aperture @ 4a42000000 size 32 MB
  Aperture too small (32 MB)

with this change we will get:

  Node 0: Aperture @ 4a42000000 size 32 MB
  Aperture beyond 4G. Ignoring.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/aperture_64.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 0b837bb3becb..608152a2a05e 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -85,10 +85,6 @@ static int __init aperture_valid(u64 aper_base, u32 aper_size)
 	if (!aper_base)
 		return 0;
 
-	if (aper_size < 64*1024*1024) {
-		printk(KERN_ERR "Aperture too small (%d MB)\n", aper_size>>20);
-		return 0;
-	}
 	if (aper_base + aper_size > 0x100000000UL) {
 		printk(KERN_ERR "Aperture beyond 4GB. Ignoring.\n");
 		return 0;
@@ -97,6 +93,10 @@ static int __init aperture_valid(u64 aper_base, u32 aper_size)
 		printk(KERN_ERR "Aperture pointing to e820 RAM. Ignoring.\n");
 		return 0;
 	}
+	if (aper_size < 64*1024*1024) {
+		printk(KERN_ERR "Aperture too small (%d MB)\n", aper_size>>20);
+		return 0;
+	}
 
 	return 1;
 }
-- 
cgit v1.2.3-59-g8ed1b


From a89780f3b84f9a421e2608580b55f12b3ac4f9c2 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:33:39 +0100
Subject: xen: fix mismerge in masking pte flags

Looks like a mismerge/misapply dropped one of the cases of pte flag
masking for Xen.  Also, only mask the flags for present ptes.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/xen/mmu.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 3e9e095c295c..e6184735545f 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -241,8 +241,10 @@ unsigned long long xen_pgd_val(pgd_t pgd)
 
 pte_t xen_make_pte(unsigned long long pte)
 {
-	if (pte & 1)
+	if (pte & _PAGE_PRESENT) {
 		pte = phys_to_machine(XPADDR(pte)).maddr;
+		pte &= ~(_PAGE_PCD | _PAGE_PWT);
+	}
 
 	return (pte_t){ .pte = pte };
 }
@@ -288,10 +290,10 @@ unsigned long xen_pgd_val(pgd_t pgd)
 
 pte_t xen_make_pte(unsigned long pte)
 {
-	if (pte & _PAGE_PRESENT)
+	if (pte & _PAGE_PRESENT) {
 		pte = phys_to_machine(XPADDR(pte)).maddr;
-
-	pte &= ~(_PAGE_PCD | _PAGE_PWT);
+		pte &= ~(_PAGE_PCD | _PAGE_PWT);
+	}
 
 	return (pte_t){ pte };
 }
-- 
cgit v1.2.3-59-g8ed1b


From 6c435456dc91ace468b4e9d72ad0e13dafa22a45 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:33:39 +0100
Subject: x86: add mm parameter to paravirt_alloc_pd

Add mm to paravirt_alloc_pd, partly to make it consistent with
paravirt_alloc_pt, and because later changes will make use of it.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/vmi_32.c     | 2 +-
 arch/x86/mm/init_32.c        | 4 ++--
 arch/x86/mm/pgtable_32.c     | 4 +++-
 include/asm-x86/paravirt.h   | 6 +++---
 include/asm-x86/pgalloc_32.h | 3 +--
 5 files changed, 10 insertions(+), 9 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 2ee5d8e0ada5..4525bc2c2e19 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -398,7 +398,7 @@ static void vmi_allocate_pt(struct mm_struct *mm, u32 pfn)
 	vmi_ops.allocate_page(pfn, VMI_PAGE_L1, 0, 0, 0);
 }
 
-static void vmi_allocate_pd(u32 pfn)
+static void vmi_allocate_pd(struct mm_struct *mm, u32 pfn)
 {
  	/*
 	 * This call comes in very early, before mem_map is setup.
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 04332c09ad1d..98d2acae4f64 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -65,7 +65,7 @@ static pmd_t * __init one_md_table_init(pgd_t *pgd)
 	if (!(pgd_val(*pgd) & _PAGE_PRESENT)) {
 		pmd_table = (pmd_t *) alloc_bootmem_low_pages(PAGE_SIZE);
 
-		paravirt_alloc_pd(__pa(pmd_table) >> PAGE_SHIFT);
+		paravirt_alloc_pd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT);
 		set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
 		pud = pud_offset(pgd, 0);
 		if (pmd_table != pmd_offset(pud, 0))
@@ -365,7 +365,7 @@ void __init native_pagetable_setup_start(pgd_t *base)
 	memset(&base[USER_PTRS_PER_PGD], 0,
 	       KERNEL_PGD_PTRS * sizeof(pgd_t));
 #else
-	paravirt_alloc_pd(__pa(swapper_pg_dir) >> PAGE_SHIFT);
+	paravirt_alloc_pd(&init_mm, __pa(base) >> PAGE_SHIFT);
 #endif
 }
 
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index be61a1d845a4..f85ee44720d2 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -330,13 +330,15 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 	if (PTRS_PER_PMD == 1 || !pgd)
 		return pgd;
 
+	mm->pgd = pgd;		/* so that alloc_pd can use it */
+
  	for (i = 0; i < UNSHARED_PTRS_PER_PGD; ++i) {
 		pmd_t *pmd = pmd_cache_alloc(i);
 
 		if (!pmd)
 			goto out_oom;
 
-		paravirt_alloc_pd(__pa(pmd) >> PAGE_SHIFT);
+		paravirt_alloc_pd(mm, __pa(pmd) >> PAGE_SHIFT);
 		set_pgd(&pgd[i], __pgd(1 + __pa(pmd)));
 	}
 	return pgd;
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 9f9ff57b3efb..d6236eb46466 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -221,7 +221,7 @@ struct pv_mmu_ops {
 
 	/* Hooks for allocating/releasing pagetable pages */
 	void (*alloc_pt)(struct mm_struct *mm, u32 pfn);
-	void (*alloc_pd)(u32 pfn);
+	void (*alloc_pd)(struct mm_struct *mm, u32 pfn);
 	void (*alloc_pd_clone)(u32 pfn, u32 clonepfn, u32 start, u32 count);
 	void (*release_pt)(u32 pfn);
 	void (*release_pd)(u32 pfn);
@@ -903,9 +903,9 @@ static inline void paravirt_release_pt(unsigned pfn)
 	PVOP_VCALL1(pv_mmu_ops.release_pt, pfn);
 }
 
-static inline void paravirt_alloc_pd(unsigned pfn)
+static inline void paravirt_alloc_pd(struct mm_struct *mm, unsigned pfn)
 {
-	PVOP_VCALL1(pv_mmu_ops.alloc_pd, pfn);
+	PVOP_VCALL2(pv_mmu_ops.alloc_pd, mm, pfn);
 }
 
 static inline void paravirt_alloc_pd_clone(unsigned pfn, unsigned clonepfn,
diff --git a/include/asm-x86/pgalloc_32.h b/include/asm-x86/pgalloc_32.h
index f2fc33ceb9f2..fbc6357f5eba 100644
--- a/include/asm-x86/pgalloc_32.h
+++ b/include/asm-x86/pgalloc_32.h
@@ -8,8 +8,7 @@
 #include <asm/paravirt.h>
 #else
 #define paravirt_alloc_pt(mm, pfn) do { } while (0)
-#define paravirt_alloc_pd(pfn) do { } while (0)
-#define paravirt_alloc_pd(pfn) do { } while (0)
+#define paravirt_alloc_pd(mm, pfn) do { } while (0)
 #define paravirt_alloc_pd_clone(pfn, clonepfn, start, count) do { } while (0)
 #define paravirt_release_pt(pfn) do { } while (0)
 #define paravirt_release_pd(pfn) do { } while (0)
-- 
cgit v1.2.3-59-g8ed1b


From a5a19c63f4e55e32dc0bc3d936d7f94793d8b380 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:33:39 +0100
Subject: x86: demacro asm-x86/pgalloc_32.h

Convert macros into inline functions, for better type-checking.

This patch required a little bit of fiddling with headers in order to
make __(pte|pmd)_free_tlb inline rather than macros.
asm-generic/tlb.h includes asm/pgalloc.h, though it doesn't directly
use any pgalloc definitions.  I removed this include to avoid an
include cycle, but it may cause secondary compile failures by things
depending on the indirect inclusion; arch/x86/mm/hugetlbpage.c was one
such place; there may be others.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/hugetlbpage.c        |  3 +-
 arch/x86/mm/init_32.c            |  1 +
 include/asm-generic/tlb.h        |  1 -
 include/asm-x86/pgalloc_32.h     | 61 +++++++++++++++++++++++++---------------
 include/asm-x86/pgtable-3level.h |  2 --
 include/linux/swap.h             |  1 +
 6 files changed, 43 insertions(+), 26 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index 6c06d9c0488e..4fbafb4bc2f0 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -15,6 +15,7 @@
 #include <asm/mman.h>
 #include <asm/tlb.h>
 #include <asm/tlbflush.h>
+#include <asm/pgalloc.h>
 
 static unsigned long page_table_shareable(struct vm_area_struct *svma,
 				struct vm_area_struct *vma,
@@ -88,7 +89,7 @@ static void huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud)
 
 	spin_lock(&mm->page_table_lock);
 	if (pud_none(*pud))
-		pud_populate(mm, pud, (unsigned long) spte & PAGE_MASK);
+		pud_populate(mm, pud, (pmd_t *)((unsigned long)spte & PAGE_MASK));
 	else
 		put_page(virt_to_page(spte));
 	spin_unlock(&mm->page_table_lock);
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 98d2acae4f64..459b384acda9 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -41,6 +41,7 @@
 #include <asm/apic.h>
 #include <asm/tlb.h>
 #include <asm/tlbflush.h>
+#include <asm/pgalloc.h>
 #include <asm/sections.h>
 #include <asm/paravirt.h>
 
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index 75f2bfab614f..6ce9f3ab928d 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -15,7 +15,6 @@
 
 #include <linux/swap.h>
 #include <linux/quicklist.h>
-#include <asm/pgalloc.h>
 #include <asm/tlbflush.h>
 
 /*
diff --git a/include/asm-x86/pgalloc_32.h b/include/asm-x86/pgalloc_32.h
index fbc6357f5eba..3482c3427897 100644
--- a/include/asm-x86/pgalloc_32.h
+++ b/include/asm-x86/pgalloc_32.h
@@ -3,6 +3,8 @@
 
 #include <linux/threads.h>
 #include <linux/mm.h>		/* for struct page */
+#include <asm/tlb.h>
+#include <asm-generic/tlb.h>
 
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
@@ -14,19 +16,20 @@
 #define paravirt_release_pd(pfn) do { } while (0)
 #endif
 
-#define pmd_populate_kernel(mm, pmd, pte)			\
-do {								\
-	paravirt_alloc_pt(mm, __pa(pte) >> PAGE_SHIFT);		\
-	set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte)));		\
-} while (0)
+static inline void pmd_populate_kernel(struct mm_struct *mm,
+				       pmd_t *pmd, pte_t *pte)
+{
+	paravirt_alloc_pt(mm, __pa(pte) >> PAGE_SHIFT);
+	set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
+}
 
-#define pmd_populate(mm, pmd, pte) 				\
-do {								\
-	paravirt_alloc_pt(mm, page_to_pfn(pte));		\
-	set_pmd(pmd, __pmd(_PAGE_TABLE +			\
-		((unsigned long long)page_to_pfn(pte) <<	\
-			(unsigned long long) PAGE_SHIFT)));	\
-} while (0)
+static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte)
+{
+	unsigned long pfn = page_to_pfn(pte);
+
+	paravirt_alloc_pt(mm, pfn);
+	set_pmd(pmd, __pmd(((pteval_t)pfn << PAGE_SHIFT) | _PAGE_TABLE));
+}
 
 /*
  * Allocate and free page tables.
@@ -48,20 +51,34 @@ static inline void pte_free(struct page *pte)
 }
 
 
-#define __pte_free_tlb(tlb,pte) 					\
-do {									\
-	paravirt_release_pt(page_to_pfn(pte));				\
-	tlb_remove_page((tlb),(pte));					\
-} while (0)
+static inline void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
+{
+	paravirt_release_pt(page_to_pfn(pte));
+	tlb_remove_page(tlb, pte);
+}
 
 #ifdef CONFIG_X86_PAE
 /*
  * In the PAE case we free the pmds as part of the pgd.
  */
-#define pmd_alloc_one(mm, addr)		({ BUG(); ((pmd_t *)2); })
-#define pmd_free(x)			do { } while (0)
-#define __pmd_free_tlb(tlb,x)		do { } while (0)
-#define pud_populate(mm, pmd, pte)	BUG()
-#endif
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
+{
+	BUG();
+	return (pmd_t *)2;
+}
+
+static inline void pmd_free(pmd_t *pmd)
+{
+}
+
+static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
+{
+}
+
+static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	BUG();
+}
+#endif	/* CONFIG_X86_PAE */
 
 #endif /* _I386_PGALLOC_H */
diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h
index 5af7a44ed902..62bb06575d5a 100644
--- a/include/asm-x86/pgtable-3level.h
+++ b/include/asm-x86/pgtable-3level.h
@@ -157,6 +157,4 @@ static inline unsigned long pte_pfn(pte_t pte)
 #define __pte_to_swp_entry(pte)		((swp_entry_t){ (pte).pte_high })
 #define __swp_entry_to_pte(x)		((pte_t){ { .pte_high = (x).val } })
 
-#define __pmd_free_tlb(tlb, x)		do { } while (0)
-
 #endif /* _I386_PGTABLE_3LEVEL_H */
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 4f3838adbb30..2c3ce4c69b25 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -6,6 +6,7 @@
 #include <linux/mmzone.h>
 #include <linux/list.h>
 #include <linux/sched.h>
+#include <linux/pagemap.h>
 
 #include <asm/atomic.h>
 #include <asm/page.h>
-- 
cgit v1.2.3-59-g8ed1b


From 1c70e9bd832642b712181e32d1bbf2436058a3df Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:33:39 +0100
Subject: xen: deal with pmd being allocated/freed

Deal properly with pmd-level pages being allocated and freed
dynamically.  We can handle them more or less the same as pte pages.

Also, deal with early_ioremap pagetable manipulations.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/xen/enlighten.c | 30 +++++++++++++++++++++++++-----
 1 file changed, 25 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 845b4fd94463..de647bc6e74d 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -658,6 +658,13 @@ static __init void xen_alloc_pt_init(struct mm_struct *mm, u32 pfn)
 	make_lowmem_page_readonly(__va(PFN_PHYS(pfn)));
 }
 
+/* Early release_pt assumes that all pts are pinned, since there's
+   only init_mm and anything attached to that is pinned. */
+static void xen_release_pt_init(u32 pfn)
+{
+	make_lowmem_page_readwrite(__va(PFN_PHYS(pfn)));
+}
+
 static void pin_pagetable_pfn(unsigned level, unsigned long pfn)
 {
 	struct mmuext_op op;
@@ -669,7 +676,7 @@ static void pin_pagetable_pfn(unsigned level, unsigned long pfn)
 
 /* This needs to make sure the new pte page is pinned iff its being
    attached to a pinned pagetable. */
-static void xen_alloc_pt(struct mm_struct *mm, u32 pfn)
+static void xen_alloc_ptpage(struct mm_struct *mm, u32 pfn, unsigned level)
 {
 	struct page *page = pfn_to_page(pfn);
 
@@ -678,7 +685,7 @@ static void xen_alloc_pt(struct mm_struct *mm, u32 pfn)
 
 		if (!PageHighMem(page)) {
 			make_lowmem_page_readonly(__va(PFN_PHYS(pfn)));
-			pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE, pfn);
+			pin_pagetable_pfn(level, pfn);
 		} else
 			/* make sure there are no stray mappings of
 			   this page */
@@ -686,6 +693,16 @@ static void xen_alloc_pt(struct mm_struct *mm, u32 pfn)
 	}
 }
 
+static void xen_alloc_pt(struct mm_struct *mm, u32 pfn)
+{
+	xen_alloc_ptpage(mm, pfn, MMUEXT_PIN_L1_TABLE);
+}
+
+static void xen_alloc_pd(struct mm_struct *mm, u32 pfn)
+{
+	xen_alloc_ptpage(mm, pfn, MMUEXT_PIN_L2_TABLE);
+}
+
 /* This should never happen until we're OK to use struct page */
 static void xen_release_pt(u32 pfn)
 {
@@ -788,6 +805,9 @@ static __init void xen_pagetable_setup_done(pgd_t *base)
 	/* This will work as long as patching hasn't happened yet
 	   (which it hasn't) */
 	pv_mmu_ops.alloc_pt = xen_alloc_pt;
+	pv_mmu_ops.alloc_pd = xen_alloc_pd;
+	pv_mmu_ops.release_pt = xen_release_pt;
+	pv_mmu_ops.release_pd = xen_release_pt;
 	pv_mmu_ops.set_pte = xen_set_pte;
 
 	if (!xen_feature(XENFEAT_auto_translated_physmap)) {
@@ -1011,10 +1031,10 @@ static const struct pv_mmu_ops xen_mmu_ops __initdata = {
 	.pte_update_defer = paravirt_nop,
 
 	.alloc_pt = xen_alloc_pt_init,
-	.release_pt = xen_release_pt,
-	.alloc_pd = paravirt_nop,
+	.release_pt = xen_release_pt_init,
+	.alloc_pd = xen_alloc_pt_init,
 	.alloc_pd_clone = paravirt_nop,
-	.release_pd = paravirt_nop,
+	.release_pd = xen_release_pt_init,
 
 #ifdef CONFIG_HIGHPTE
 	.kmap_atomic_pte = xen_kmap_atomic_pte,
-- 
cgit v1.2.3-59-g8ed1b


From 8fe3deef013bebdbed1f75ae59ef9707fb6e5cc7 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:33:40 +0100
Subject: x86: preallocate pmds at pgd creation time

In PAE mode, an update to the pgd requires a cr3 reload to make sure
the processor notices the changes.  Since this also has the
side-effect of flushing the tlb, its an expensive operation which we
want to avoid where possible.

This patch mitigates the cost of installing the initial set of pmds on
process creation by preallocating them when the pgd is allocated.
This avoids up to three tlb flushes during exec, as it creates the new
process address space while the pagetable is in active use.

The pmds will be freed as part of the normal pagetable teardown in
free_pgtables, which is called in munmap and process exit.  However,
free_pgtables will only free parts of the pagetable which actually
contain mappings, so stray pmds may still be attached to the pgd at
pgd_free time.  We must mop them up to prevent a memory leak.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: William Irwin <wli@holomorphy.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pgtable_32.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index f85ee44720d2..33ddddfc26b0 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -294,6 +294,70 @@ static void pgd_dtor(void *pgd)
 #define UNSHARED_PTRS_PER_PGD				\
 	(SHARED_KERNEL_PMD ? USER_PTRS_PER_PGD : PTRS_PER_PGD)
 
+#ifdef CONFIG_X86_PAE
+/*
+ * Mop up any pmd pages which may still be attached to the pgd.
+ * Normally they will be freed by munmap/exit_mmap, but any pmd we
+ * preallocate which never got a corresponding vma will need to be
+ * freed manually.
+ */
+static void pgd_mop_up_pmds(pgd_t *pgdp)
+{
+	int i;
+
+	for(i = 0; i < USER_PTRS_PER_PGD; i++) {
+		pgd_t pgd = pgdp[i];
+
+		if (pgd_val(pgd) != 0) {
+			pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd);
+
+			pgdp[i] = native_make_pgd(0);
+
+			paravirt_release_pd(pgd_val(pgd) >> PAGE_SHIFT);
+			pmd_free(pmd);
+		}
+	}
+}
+
+/*
+ * In PAE mode, we need to do a cr3 reload (=tlb flush) when
+ * updating the top-level pagetable entries to guarantee the
+ * processor notices the update.  Since this is expensive, and
+ * all 4 top-level entries are used almost immediately in a
+ * new process's life, we just pre-populate them here.
+ */
+static int pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd)
+{
+	pud_t *pud;
+	unsigned long addr;
+	int i;
+
+	pud = pud_offset(pgd, 0);
+ 	for (addr = i = 0; i < USER_PTRS_PER_PGD; i++, pud++, addr += PUD_SIZE) {
+		pmd_t *pmd = pmd_alloc_one(mm, addr);
+
+		if (!pmd) {
+			pgd_mop_up_pmds(pgd);
+			return 0;
+		}
+
+		pud_populate(mm, pud, pmd);
+	}
+
+	return 1;
+}
+#else  /* !CONFIG_X86_PAE */
+/* No need to prepopulate any pagetable entries in non-PAE modes. */
+static int pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd)
+{
+	return 1;
+}
+
+static void pgd_mop_up_pmds(pgd_t *pgd)
+{
+}
+#endif	/* CONFIG_X86_PAE */
+
 /* If we allocate a pmd for part of the kernel address space, then
    make sure its initialized with the appropriate kernel mappings.
    Otherwise use a cached zeroed pmd.  */
@@ -341,6 +405,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 		paravirt_alloc_pd(mm, __pa(pmd) >> PAGE_SHIFT);
 		set_pgd(&pgd[i], __pgd(1 + __pa(pmd)));
 	}
+	if (pgd && !pgd_prepopulate_pmd(mm, pgd)) {
+		quicklist_free(0, pgd_dtor, pgd);
+		pgd = NULL;
+	}
+
 	return pgd;
 
 out_oom:
@@ -367,6 +436,7 @@ void pgd_free(pgd_t *pgd)
 			pmd_cache_free(pmd, i);
 		}
 	/* in the non-PAE case, free_pgtables() clears user pgd entries */
+	pgd_mop_up_pmds(pgd);
 	quicklist_free(0, pgd_dtor, pgd);
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 508bebbb1f211fbf3f392feea44218045096f240 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:33:40 +0100
Subject: x86: allocate and initialize unshared pmds

If SHARED_KERNEL_PMD is false, then we need to allocate and initialize
the kernel pmd.  We can easily piggy-back this onto the existing pmd
prepopulation code.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pgtable_32.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index 33ddddfc26b0..3a6c9200058d 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -305,7 +305,7 @@ static void pgd_mop_up_pmds(pgd_t *pgdp)
 {
 	int i;
 
-	for(i = 0; i < USER_PTRS_PER_PGD; i++) {
+	for(i = 0; i < UNSHARED_PTRS_PER_PGD; i++) {
 		pgd_t pgd = pgdp[i];
 
 		if (pgd_val(pgd) != 0) {
@@ -325,6 +325,10 @@ static void pgd_mop_up_pmds(pgd_t *pgdp)
  * processor notices the update.  Since this is expensive, and
  * all 4 top-level entries are used almost immediately in a
  * new process's life, we just pre-populate them here.
+ *
+ * Also, if we're in a paravirt environment where the kernel pmd is
+ * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate
+ * and initialize the kernel pmds here.
  */
 static int pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd)
 {
@@ -333,7 +337,8 @@ static int pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd)
 	int i;
 
 	pud = pud_offset(pgd, 0);
- 	for (addr = i = 0; i < USER_PTRS_PER_PGD; i++, pud++, addr += PUD_SIZE) {
+ 	for (addr = i = 0; i < UNSHARED_PTRS_PER_PGD;
+	     i++, pud++, addr += PUD_SIZE) {
 		pmd_t *pmd = pmd_alloc_one(mm, addr);
 
 		if (!pmd) {
@@ -341,6 +346,10 @@ static int pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd)
 			return 0;
 		}
 
+		if (i >= USER_PTRS_PER_PGD)
+			memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
+			       sizeof(pmd_t) * PTRS_PER_PMD);
+
 		pud_populate(mm, pud, pmd);
 	}
 
@@ -444,4 +453,3 @@ void check_pgt_cache(void)
 {
 	quicklist_trim(0, pgd_dtor, 25, 16);
 }
-
-- 
cgit v1.2.3-59-g8ed1b


From 5a96f4a55c3b0bfd40771a973b173e1b94909559 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yhlu.kernel@gmail.com>
Date: Wed, 30 Jan 2008 13:33:40 +0100
Subject: x86: fix recursion in arch/x86/kernel/cpu/mcheck/mce_amd_64.c

remove the recursion from this function.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/mcheck/mce_amd_64.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index 77e666628818..32671da8184e 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -555,7 +555,7 @@ static __cpuinit int threshold_create_device(unsigned int cpu)
 	int err = 0;
 
 	for (bank = 0; bank < NR_BANKS; ++bank) {
-		if (!(per_cpu(bank_map, cpu) & 1 << bank))
+		if (!(per_cpu(bank_map, cpu) & (1 << bank)))
 			continue;
 		err = threshold_create_bank(cpu, bank);
 		if (err)
@@ -638,7 +638,7 @@ static void threshold_remove_device(unsigned int cpu)
 	unsigned int bank;
 
 	for (bank = 0; bank < NR_BANKS; ++bank) {
-		if (!(per_cpu(bank_map, cpu) & 1 << bank))
+		if (!(per_cpu(bank_map, cpu) & (1 << bank)))
 			continue;
 		threshold_remove_bank(cpu, bank);
 	}
-- 
cgit v1.2.3-59-g8ed1b


From 9f4c815ce7ab53150f17c97a382f136a8fb68044 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:41 +0100
Subject: x86: clean up arch/x86/mm/pageattr_32.c

clean up arch/x86/mm/pageattr_32.c.

no code changed:

   text    data     bss     dec     hex filename
   1255      40       0    1295     50f pageattr_32.o.before
   1255      40       0    1295     50f pageattr_32.o.after

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_32.c | 151 +++++++++++++++++++++++++---------------------
 1 file changed, 83 insertions(+), 68 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index 260073c07600..be4656403d77 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -1,28 +1,29 @@
-/* 
- * Copyright 2002 Andi Kleen, SuSE Labs. 
+/*
+ * Copyright 2002 Andi Kleen, SuSE Labs.
  * Thanks to Ben LaHaise for precious feedback.
- */ 
+ */
 
-#include <linux/mm.h>
-#include <linux/sched.h>
 #include <linux/highmem.h>
 #include <linux/module.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
-#include <asm/uaccess.h>
+#include <linux/mm.h>
+
 #include <asm/processor.h>
 #include <asm/tlbflush.h>
-#include <asm/pgalloc.h>
 #include <asm/sections.h>
+#include <asm/uaccess.h>
+#include <asm/pgalloc.h>
 
 static DEFINE_SPINLOCK(cpa_lock);
 static struct list_head df_list = LIST_HEAD_INIT(df_list);
 
-
-pte_t *lookup_address(unsigned long address) 
-{ 
+pte_t *lookup_address(unsigned long address)
+{
 	pgd_t *pgd = pgd_offset_k(address);
 	pud_t *pud;
 	pmd_t *pmd;
+
 	if (pgd_none(*pgd))
 		return NULL;
 	pud = pud_offset(pgd, address);
@@ -33,21 +34,22 @@ pte_t *lookup_address(unsigned long address)
 		return NULL;
 	if (pmd_large(*pmd))
 		return (pte_t *)pmd;
-        return pte_offset_kernel(pmd, address);
-} 
 
-static struct page *split_large_page(unsigned long address, pgprot_t prot,
-					pgprot_t ref_prot)
-{ 
-	int i; 
+	return pte_offset_kernel(pmd, address);
+}
+
+static struct page *
+split_large_page(unsigned long address, pgprot_t prot, pgprot_t ref_prot)
+{
 	unsigned long addr;
 	struct page *base;
 	pte_t *pbase;
+	int i;
 
 	spin_unlock_irq(&cpa_lock);
 	base = alloc_pages(GFP_KERNEL, 0);
 	spin_lock_irq(&cpa_lock);
-	if (!base) 
+	if (!base)
 		return NULL;
 
 	/*
@@ -58,22 +60,24 @@ static struct page *split_large_page(unsigned long address, pgprot_t prot,
 	page_private(base) = 0;
 
 	address = __pa(address);
-	addr = address & LARGE_PAGE_MASK; 
+	addr = address & LARGE_PAGE_MASK;
 	pbase = (pte_t *)page_address(base);
 	paravirt_alloc_pt(&init_mm, page_to_pfn(base));
+
 	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) {
-               set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT,
-                                          addr == address ? prot : ref_prot));
+		set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT,
+					   addr == address ? prot : ref_prot));
 	}
 	return base;
-} 
+}
 
 static void cache_flush_page(struct page *p)
-{ 
-	void *adr = page_address(p);
+{
+	void *addr = page_address(p);
 	int i;
+
 	for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
-		clflush(adr+i);
+		clflush(addr + i);
 }
 
 static void flush_kernel_map(void *arg)
@@ -83,23 +87,27 @@ static void flush_kernel_map(void *arg)
 
 	/* High level code is not ready for clflush yet */
 	if (0 && cpu_has_clflush) {
-		list_for_each_entry (p, lh, lru)
+		list_for_each_entry(p, lh, lru)
 			cache_flush_page(p);
-	} else if (boot_cpu_data.x86_model >= 4)
-		wbinvd();
+	} else {
+		if (boot_cpu_data.x86_model >= 4)
+			wbinvd();
+	}
 
-	/* Flush all to work around Errata in early athlons regarding 
-	 * large page flushing. 
+	/*
+	 * Flush all to work around Errata in early athlons regarding
+	 * large page flushing.
 	 */
-	__flush_tlb_all(); 	
+	__flush_tlb_all();
 }
 
-static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte) 
-{ 
-	struct page *page;
+static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
+{
 	unsigned long flags;
+	struct page *page;
 
-	set_pte_atomic(kpte, pte); 	/* change init_mm */
+	/* change init_mm */
+	set_pte_atomic(kpte, pte);
 	if (SHARED_KERNEL_PMD)
 		return;
 
@@ -108,6 +116,7 @@ static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 		pgd_t *pgd;
 		pud_t *pud;
 		pmd_t *pmd;
+
 		pgd = (pgd_t *)page_address(page) + pgd_index(address);
 		pud = pud_offset(pgd, address);
 		pmd = pmd_offset(pud, address);
@@ -116,9 +125,9 @@ static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 	spin_unlock_irqrestore(&pgd_lock, flags);
 }
 
-/* 
- * No more special protections in this 2/4MB area - revert to a
- * large page again. 
+/*
+ * No more special protections in this 2/4MB area - revert to a large
+ * page again.
  */
 static inline void revert_page(struct page *kpte_page, unsigned long address)
 {
@@ -142,12 +151,11 @@ static inline void save_page(struct page *kpte_page)
 		list_add(&kpte_page->lru, &df_list);
 }
 
-static int
-__change_page_attr(struct page *page, pgprot_t prot)
-{ 
-	pte_t *kpte; 
-	unsigned long address;
+static int __change_page_attr(struct page *page, pgprot_t prot)
+{
 	struct page *kpte_page;
+	unsigned long address;
+	pte_t *kpte;
 
 	BUG_ON(PageHighMem(page));
 	address = (unsigned long)page_address(page);
@@ -155,16 +163,17 @@ __change_page_attr(struct page *page, pgprot_t prot)
 	kpte = lookup_address(address);
 	if (!kpte)
 		return -EINVAL;
+
 	kpte_page = virt_to_page(kpte);
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
 
-	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL)) { 
+	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL)) {
 		if (!pte_huge(*kpte)) {
-			set_pte_atomic(kpte, mk_pte(page, prot)); 
+			set_pte_atomic(kpte, mk_pte(page, prot));
 		} else {
-			pgprot_t ref_prot;
 			struct page *split;
+			pgprot_t ref_prot;
 
 			ref_prot =
 			((address & LARGE_PAGE_MASK) < (unsigned long)&_etext)
@@ -172,16 +181,19 @@ __change_page_attr(struct page *page, pgprot_t prot)
 			split = split_large_page(address, prot, ref_prot);
 			if (!split)
 				return -ENOMEM;
-			set_pmd_pte(kpte,address,mk_pte(split, ref_prot));
+
+			set_pmd_pte(kpte, address, mk_pte(split, ref_prot));
 			kpte_page = split;
 		}
 		page_private(kpte_page)++;
-	} else if (!pte_huge(*kpte)) {
-		set_pte_atomic(kpte, mk_pte(page, PAGE_KERNEL));
-		BUG_ON(page_private(kpte_page) == 0);
-		page_private(kpte_page)--;
-	} else
-		BUG();
+	} else {
+		if (!pte_huge(*kpte)) {
+			set_pte_atomic(kpte, mk_pte(page, PAGE_KERNEL));
+			BUG_ON(page_private(kpte_page) == 0);
+			page_private(kpte_page)--;
+		} else
+			BUG();
+	}
 
 	/*
 	 * If the pte was reserved, it means it was created at boot
@@ -197,7 +209,7 @@ __change_page_attr(struct page *page, pgprot_t prot)
 		}
 	}
 	return 0;
-} 
+}
 
 static inline void flush_map(struct list_head *l)
 {
@@ -211,32 +223,33 @@ static inline void flush_map(struct list_head *l)
  * than write-back somewhere - some CPUs do not like it when mappings with
  * different caching policies exist. This changes the page attributes of the
  * in kernel linear mapping too.
- * 
+ *
  * The caller needs to ensure that there are no conflicting mappings elsewhere.
  * This function only deals with the kernel linear map.
- * 
+ *
  * Caller must call global_flush_tlb() after this.
  */
 int change_page_attr(struct page *page, int numpages, pgprot_t prot)
 {
-	int err = 0; 
-	int i; 
 	unsigned long flags;
+	int err = 0, i;
 
 	spin_lock_irqsave(&cpa_lock, flags);
-	for (i = 0; i < numpages; i++, page++) { 
+	for (i = 0; i < numpages; i++, page++) {
 		err = __change_page_attr(page, prot);
-		if (err) 
-			break; 
-	} 	
+		if (err)
+			break;
+	}
 	spin_unlock_irqrestore(&cpa_lock, flags);
+
 	return err;
 }
+EXPORT_SYMBOL(change_page_attr);
 
 void global_flush_tlb(void)
 {
-	struct list_head l;
 	struct page *pg, *next;
+	struct list_head l;
 
 	BUG_ON(irqs_disabled());
 
@@ -253,26 +266,28 @@ void global_flush_tlb(void)
 		__free_page(pg);
 	}
 }
+EXPORT_SYMBOL(global_flush_tlb);
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
 void kernel_map_pages(struct page *page, int numpages, int enable)
 {
 	if (PageHighMem(page))
 		return;
-	if (!enable)
+	if (!enable) {
 		debug_check_no_locks_freed(page_address(page),
 					   numpages * PAGE_SIZE);
+	}
 
-	/* the return value is ignored - the calls cannot fail,
+	/*
+	 * the return value is ignored - the calls cannot fail,
 	 * large pages are disabled at boot time.
 	 */
 	change_page_attr(page, numpages, enable ? PAGE_KERNEL : __pgprot(0));
-	/* we should perform an IPI and flush all tlbs,
+
+	/*
+	 * we should perform an IPI and flush all tlbs,
 	 * but that can deadlock->flush only current cpu.
 	 */
 	__flush_tlb_all();
 }
 #endif
-
-EXPORT_SYMBOL(change_page_attr);
-EXPORT_SYMBOL(global_flush_tlb);
-- 
cgit v1.2.3-59-g8ed1b


From b4416a1be86b0c7bdde4e6ba526715c1a055746f Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:41 +0100
Subject: x86: clean up arch/x86/mm/pageattr_64.c

clean up arch/x86/mm/pageattr_64.c.

no code changed:

   text    data     bss     dec     hex filename
   1751      16       0    1767     6e7 pageattr_64.o.before
   1751      16       0    1767     6e7 pageattr_64.o.after

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 143 ++++++++++++++++++++++++++--------------------
 1 file changed, 81 insertions(+), 62 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index c40afbaaf93d..14ab327cde0c 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -1,48 +1,54 @@
-/* 
- * Copyright 2002 Andi Kleen, SuSE Labs. 
+/*
+ * Copyright 2002 Andi Kleen, SuSE Labs.
  * Thanks to Ben LaHaise for precious feedback.
- */ 
+ */
 
-#include <linux/mm.h>
-#include <linux/sched.h>
 #include <linux/highmem.h>
 #include <linux/module.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
-#include <asm/uaccess.h>
+#include <linux/mm.h>
+
 #include <asm/processor.h>
 #include <asm/tlbflush.h>
+#include <asm/uaccess.h>
 #include <asm/io.h>
 
 pte_t *lookup_address(unsigned long address)
-{ 
+{
 	pgd_t *pgd = pgd_offset_k(address);
 	pud_t *pud;
 	pmd_t *pmd;
 	pte_t *pte;
+
 	if (pgd_none(*pgd))
 		return NULL;
 	pud = pud_offset(pgd, address);
 	if (!pud_present(*pud))
-		return NULL; 
+		return NULL;
 	pmd = pmd_offset(pud, address);
 	if (!pmd_present(*pmd))
-		return NULL; 
+		return NULL;
 	if (pmd_large(*pmd))
 		return (pte_t *)pmd;
+
 	pte = pte_offset_kernel(pmd, address);
 	if (pte && !pte_present(*pte))
-		pte = NULL; 
+		pte = NULL;
+
 	return pte;
-} 
+}
 
-static struct page *split_large_page(unsigned long address, pgprot_t prot,
-				     pgprot_t ref_prot)
-{ 
-	int i; 
+static struct page *
+split_large_page(unsigned long address, pgprot_t prot, pgprot_t ref_prot)
+{
 	unsigned long addr;
-	struct page *base = alloc_pages(GFP_KERNEL, 0);
+	struct page *base;
 	pte_t *pbase;
-	if (!base) 
+	int i;
+
+	base = alloc_pages(GFP_KERNEL, 0);
+	if (!base)
 		return NULL;
 	/*
 	 * page_private is used to track the number of entries in
@@ -52,20 +58,21 @@ static struct page *split_large_page(unsigned long address, pgprot_t prot,
 	page_private(base) = 0;
 
 	address = __pa(address);
-	addr = address & LARGE_PAGE_MASK; 
+	addr = address & LARGE_PAGE_MASK;
 	pbase = (pte_t *)page_address(base);
 	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) {
-		pbase[i] = pfn_pte(addr >> PAGE_SHIFT, 
+		pbase[i] = pfn_pte(addr >> PAGE_SHIFT,
 				   addr == address ? prot : ref_prot);
 	}
 	return base;
-} 
+}
 
-void clflush_cache_range(void *adr, int size)
+void clflush_cache_range(void *addr, int size)
 {
 	int i;
+
 	for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
-		clflush(adr+i);
+		clflush(addr+i);
 }
 
 static void flush_kernel_map(void *arg)
@@ -76,17 +83,20 @@ static void flush_kernel_map(void *arg)
 	/* When clflush is available always use it because it is
 	   much cheaper than WBINVD. */
 	/* clflush is still broken. Disable for now. */
-	if (1 || !cpu_has_clflush)
+	if (1 || !cpu_has_clflush) {
 		asm volatile("wbinvd" ::: "memory");
-	else list_for_each_entry(pg, l, lru) {
-		void *adr = page_address(pg);
-		clflush_cache_range(adr, PAGE_SIZE);
+	} else {
+		list_for_each_entry(pg, l, lru) {
+			void *addr = page_address(pg);
+
+			clflush_cache_range(addr, PAGE_SIZE);
+		}
 	}
 	__flush_tlb_all();
 }
 
 static inline void flush_map(struct list_head *l)
-{	
+{
 	on_each_cpu(flush_kernel_map, l, 1, 1);
 }
 
@@ -98,52 +108,56 @@ static inline void save_page(struct page *fpage)
 		list_add(&fpage->lru, &deferred_pages);
 }
 
-/* 
+/*
  * No more special protections in this 2/4MB area - revert to a
- * large page again. 
+ * large page again.
  */
 static void revert_page(unsigned long address, pgprot_t ref_prot)
 {
+	unsigned long pfn;
 	pgd_t *pgd;
 	pud_t *pud;
 	pmd_t *pmd;
 	pte_t large_pte;
-	unsigned long pfn;
 
 	pgd = pgd_offset_k(address);
 	BUG_ON(pgd_none(*pgd));
-	pud = pud_offset(pgd,address);
+	pud = pud_offset(pgd, address);
 	BUG_ON(pud_none(*pud));
 	pmd = pmd_offset(pud, address);
 	BUG_ON(pmd_val(*pmd) & _PAGE_PSE);
 	pfn = (__pa(address) & LARGE_PAGE_MASK) >> PAGE_SHIFT;
 	large_pte = pfn_pte(pfn, ref_prot);
 	large_pte = pte_mkhuge(large_pte);
+
 	set_pte((pte_t *)pmd, large_pte);
-}      
+}
 
 static int
 __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
-				   pgprot_t ref_prot)
-{ 
-	pte_t *kpte; 
+		   pgprot_t ref_prot)
+{
 	struct page *kpte_page;
 	pgprot_t ref_prot2;
+	pte_t *kpte;
 
 	kpte = lookup_address(address);
-	if (!kpte) return 0;
+	if (!kpte)
+		return 0;
+
 	kpte_page = virt_to_page(((unsigned long)kpte) & PAGE_MASK);
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
-	if (pgprot_val(prot) != pgprot_val(ref_prot)) { 
+	if (pgprot_val(prot) != pgprot_val(ref_prot)) {
 		if (!pte_huge(*kpte)) {
 			set_pte(kpte, pfn_pte(pfn, prot));
 		} else {
- 			/*
+			/*
 			 * split_large_page will take the reference for this
 			 * change_page_attr on the split page.
- 			 */
+			 */
 			struct page *split;
+
 			ref_prot2 = pte_pgprot(pte_clrhuge(*kpte));
 			split = split_large_page(address, prot, ref_prot2);
 			if (!split)
@@ -153,21 +167,23 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
 			kpte_page = split;
 		}
 		page_private(kpte_page)++;
-	} else if (!pte_huge(*kpte)) {
-		set_pte(kpte, pfn_pte(pfn, ref_prot));
-		BUG_ON(page_private(kpte_page) == 0);
-		page_private(kpte_page)--;
-	} else
-		BUG();
+	} else {
+		if (!pte_huge(*kpte)) {
+			set_pte(kpte, pfn_pte(pfn, ref_prot));
+			BUG_ON(page_private(kpte_page) == 0);
+			page_private(kpte_page)--;
+		} else
+			BUG();
+	}
 
 	/* on x86-64 the direct mapping set at boot is not using 4k pages */
- 	BUG_ON(PageReserved(kpte_page));
+	BUG_ON(PageReserved(kpte_page));
 
 	save_page(kpte_page);
 	if (page_private(kpte_page) == 0)
 		revert_page(address, ref_prot);
 	return 0;
-} 
+}
 
 /*
  * Change the page attributes of an page in the linear mapping.
@@ -176,19 +192,19 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
  * than write-back somewhere - some CPUs do not like it when mappings with
  * different caching policies exist. This changes the page attributes of the
  * in kernel linear mapping too.
- * 
+ *
  * The caller needs to ensure that there are no conflicting mappings elsewhere.
  * This function only deals with the kernel linear map.
- * 
+ *
  * Caller must call global_flush_tlb() after this.
  */
 int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 {
-	int err = 0, kernel_map = 0;
-	int i; 
+	int err = 0, kernel_map = 0, i;
+
+	if (address >= __START_KERNEL_map &&
+			address < __START_KERNEL_map + KERNEL_TEXT_SIZE) {
 
-	if (address >= __START_KERNEL_map
-	    && address < __START_KERNEL_map + KERNEL_TEXT_SIZE) {
 		address = (unsigned long)__va(__pa(address));
 		kernel_map = 1;
 	}
@@ -198,7 +214,8 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 		unsigned long pfn = __pa(address) >> PAGE_SHIFT;
 
 		if (!kernel_map || pte_present(pfn_pte(0, prot))) {
-			err = __change_page_attr(address, pfn, prot, PAGE_KERNEL);
+			err = __change_page_attr(address, pfn, prot,
+						PAGE_KERNEL);
 			if (err)
 				break;
 		}
@@ -207,14 +224,16 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 		if (__pa(address) < KERNEL_TEXT_SIZE) {
 			unsigned long addr2;
 			pgprot_t prot2;
+
 			addr2 = __START_KERNEL_map + __pa(address);
 			/* Make sure the kernel mappings stay executable */
 			prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
 			err = __change_page_attr(addr2, pfn, prot2,
 						 PAGE_KERNEL_EXEC);
-		} 
-	} 	
-	up_write(&init_mm.mmap_sem); 
+		}
+	}
+	up_write(&init_mm.mmap_sem);
+
 	return err;
 }
 
@@ -222,11 +241,13 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 int change_page_attr(struct page *page, int numpages, pgprot_t prot)
 {
 	unsigned long addr = (unsigned long)page_address(page);
+
 	return change_page_attr_addr(addr, numpages, prot);
 }
+EXPORT_SYMBOL(change_page_attr);
 
 void global_flush_tlb(void)
-{ 
+{
 	struct page *pg, *next;
 	struct list_head l;
 
@@ -248,8 +269,6 @@ void global_flush_tlb(void)
 			continue;
 		ClearPagePrivate(pg);
 		__free_page(pg);
-	} 
-} 
-
-EXPORT_SYMBOL(change_page_attr);
+	}
+}
 EXPORT_SYMBOL(global_flush_tlb);
-- 
cgit v1.2.3-59-g8ed1b


From 0c42f392767d3592e1cf676857d398ef69be7c9c Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:42 +0100
Subject: c_p_a(): do a simple self test at boot

When CONFIG_DEBUG_RODATA is enabled undo the ro mapping and redo it again.
This gives some simple testing for change_page_attr().

Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.debug |  5 +++++
 arch/x86/mm/init_32.c  | 26 ++++++++++++++++++++++++++
 arch/x86/mm/init_64.c  | 10 ++++++++++
 3 files changed, 41 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 9bb61e1aed69..38211ff0447f 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -204,4 +204,9 @@ config DEBUG_BOOT_PARAMS
 	help
 	  This option will cause struct boot_params to be exported via debugfs.
 
+config CPA_DEBUG
+	bool "CPA self test code"
+	help
+	  Do change_page_attr self tests at boot.
+
 endmenu
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 459b384acda9..724a5eff6f34 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -799,6 +799,20 @@ void mark_rodata_ro(void)
 		change_page_attr(virt_to_page(start),
 		                 size >> PAGE_SHIFT, PAGE_KERNEL_RX);
 		printk("Write protecting the kernel text: %luk\n", size >> 10);
+
+#ifdef CONFIG_CPA_DEBUG
+		global_flush_tlb();
+
+		printk("Testing CPA: Reverting %lx-%lx\n", start, start+size);
+		change_page_attr(virt_to_page(start), size>>PAGE_SHIFT,
+				 PAGE_KERNEL_EXEC);
+		global_flush_tlb();
+
+		printk("Testing CPA: write protecting again\n");
+		change_page_attr(virt_to_page(start), size>>PAGE_SHIFT,
+				PAGE_KERNEL_RX);
+		global_flush_tlb();
+#endif
 	}
 #endif
 	start += size;
@@ -815,6 +829,18 @@ void mark_rodata_ro(void)
 	 * of who is the culprit.
 	 */
 	global_flush_tlb();
+
+#ifdef CONFIG_CPA_DEBUG
+	printk("Testing CPA: undo %lx-%lx\n", start, start + size);
+	change_page_attr(virt_to_page(start), size >> PAGE_SHIFT,
+				PAGE_KERNEL);
+	global_flush_tlb();
+
+	printk("Testing CPA: write protecting again\n");
+	change_page_attr(virt_to_page(start), size >> PAGE_SHIFT,
+				PAGE_KERNEL_RO);
+	global_flush_tlb();
+#endif
 }
 #endif
 
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 8198840c3dcb..0fd9d7f77786 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -606,6 +606,16 @@ void mark_rodata_ro(void)
 	 * of who is the culprit.
 	 */
 	global_flush_tlb();
+
+#ifdef CONFIG_CPA_DEBUG
+	printk("Testing CPA: undo %lx-%lx\n", start, end);
+	change_page_attr_addr(start, (end - start) >> PAGE_SHIFT, PAGE_KERNEL);
+	global_flush_tlb();
+
+	printk("Testing CPA: again\n");
+	change_page_attr_addr(start, (end - start) >> PAGE_SHIFT, PAGE_KERNEL_RO);
+	global_flush_tlb();
+#endif
 }
 #endif
 
-- 
cgit v1.2.3-59-g8ed1b


From e66a95127dc4273d3573eb03657991f7bbd5dca3 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:33:42 +0100
Subject: x86: add dump_pagetable helper to X86_32

Similar to x86 64-bit.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 72 +++++++++++++++++++++++++++-----------------------
 1 file changed, 39 insertions(+), 33 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 93ede2dde958..41c31968a74c 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -173,6 +173,44 @@ static void force_sig_info_fault(int si_signo, int si_code,
 	force_sig_info(si_signo, &info, tsk);
 }
 
+void dump_pagetable(unsigned long address)
+{
+	__typeof__(pte_val(__pte(0))) page;
+
+	page = read_cr3();
+	page = ((__typeof__(page) *) __va(page))[address >> PGDIR_SHIFT];
+#ifdef CONFIG_X86_PAE
+	printk("*pdpt = %016Lx ", page);
+	if ((page >> PAGE_SHIFT) < max_low_pfn
+	    && page & _PAGE_PRESENT) {
+		page &= PAGE_MASK;
+		page = ((__typeof__(page) *) __va(page))[(address >> PMD_SHIFT)
+		                                         & (PTRS_PER_PMD - 1)];
+		printk(KERN_CONT "*pde = %016Lx ", page);
+		page &= ~_PAGE_NX;
+	}
+#else
+	printk("*pde = %08lx ", page);
+#endif
+
+	/*
+	 * We must not directly access the pte in the highpte
+	 * case if the page table is located in highmem.
+	 * And let's rather not kmap-atomic the pte, just in case
+	 * it's allocated already.
+	 */
+	if ((page >> PAGE_SHIFT) < max_low_pfn
+	    && (page & _PAGE_PRESENT)
+	    && !(page & _PAGE_PSE)) {
+		page &= PAGE_MASK;
+		page = ((__typeof__(page) *) __va(page))[(address >> PAGE_SHIFT)
+		                                         & (PTRS_PER_PTE - 1)];
+		printk("*pte = %0*Lx ", sizeof(page)*2, (u64)page);
+	}
+
+	printk("\n");
+}
+
 void do_invalid_op(struct pt_regs *, unsigned long);
 
 static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
@@ -572,7 +610,6 @@ no_context:
 	bust_spinlocks(1);
 
 	if (oops_may_print()) {
-		__typeof__(pte_val(__pte(0))) page;
 
 #ifdef CONFIG_X86_PAE
 		if (error_code & PF_INSTR) {
@@ -593,38 +630,7 @@ no_context:
 		printk(" at virtual address %08lx\n", address);
 		printk(KERN_ALERT "printing ip: %08lx ", regs->ip);
 
-		page = read_cr3();
-		page = ((__typeof__(page) *) __va(page))[address >> PGDIR_SHIFT];
-#ifdef CONFIG_X86_PAE
-		printk("*pdpt = %016Lx ", page);
-		if ((page >> PAGE_SHIFT) < max_low_pfn
-		    && page & _PAGE_PRESENT) {
-			page &= PAGE_MASK;
-			page = ((__typeof__(page) *) __va(page))[(address >> PMD_SHIFT)
-			                                         & (PTRS_PER_PMD - 1)];
-			printk(KERN_CONT "*pde = %016Lx ", page);
-			page &= ~_PAGE_NX;
-		}
-#else
-		printk("*pde = %08lx ", page);
-#endif
-
-		/*
-		 * We must not directly access the pte in the highpte
-		 * case if the page table is located in highmem.
-		 * And let's rather not kmap-atomic the pte, just in case
-		 * it's allocated already.
-		 */
-		if ((page >> PAGE_SHIFT) < max_low_pfn
-		    && (page & _PAGE_PRESENT)
-		    && !(page & _PAGE_PSE)) {
-			page &= PAGE_MASK;
-			page = ((__typeof__(page) *) __va(page))[(address >> PAGE_SHIFT)
-			                                         & (PTRS_PER_PTE - 1)];
-			printk("*pte = %0*Lx ", sizeof(page)*2, (u64)page);
-		}
-
-		printk("\n");
+		dump_pagetable(address);
 	}
 
 	tsk->thread.cr2 = address;
-- 
cgit v1.2.3-59-g8ed1b


From 4c3c4b4513a361cc6ac5ee8677695260c4f0f25f Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:42 +0100
Subject: x86: clean up pte_exec

- Rename it to pte_exec() from pte_exec_kernel(). There is nothing
kernel specific in there.
- Move it into the common file because _PAGE_NX is 0 on !PAE and then
pte_exec() will be always evaluate to true.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c           | 2 +-
 arch/x86/mm/init_32.c            | 2 +-
 include/asm-x86/pgtable-2level.h | 8 --------
 include/asm-x86/pgtable-3level.h | 8 --------
 include/asm-x86/pgtable.h        | 1 +
 5 files changed, 3 insertions(+), 18 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 41c31968a74c..f7972ae7da07 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -615,7 +615,7 @@ no_context:
 		if (error_code & PF_INSTR) {
 			pte_t *pte = lookup_address(address);
 
-			if (pte && pte_present(*pte) && !pte_exec_kernel(*pte))
+			if (pte && pte_present(*pte) && !pte_exec(*pte))
 				printk(KERN_CRIT "kernel tried to execute "
 					"NX-protected page - exploit attempt? "
 					"(uid: %d)\n", current->uid);
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 724a5eff6f34..5080646da771 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -542,7 +542,7 @@ int __init set_kernel_exec(unsigned long vaddr, int enable)
 	pte = lookup_address(vaddr);
 	BUG_ON(!pte);
 
-	if (!pte_exec_kernel(*pte))
+	if (!pte_exec(*pte))
 		ret = 0;
 
 	if (enable)
diff --git a/include/asm-x86/pgtable-2level.h b/include/asm-x86/pgtable-2level.h
index ce486bdbbbb7..701404fab308 100644
--- a/include/asm-x86/pgtable-2level.h
+++ b/include/asm-x86/pgtable-2level.h
@@ -55,14 +55,6 @@ static inline pte_t native_ptep_get_and_clear(pte_t *xp)
 #define pte_none(x)		(!(x).pte_low)
 #define pte_pfn(x)		(pte_val(x) >> PAGE_SHIFT)
 
-/*
- * All present pages are kernel-executable:
- */
-static inline int pte_exec_kernel(pte_t pte)
-{
-	return 1;
-}
-
 /*
  * Bits 0, 6 and 7 are taken, split up the 29 bits of offset
  * into this range:
diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h
index 62bb06575d5a..62a1ffbc8784 100644
--- a/include/asm-x86/pgtable-3level.h
+++ b/include/asm-x86/pgtable-3level.h
@@ -19,14 +19,6 @@
 #define pud_bad(pud)				0
 #define pud_present(pud)			1
 
-/*
- * All present pages with !NX bit are kernel-executable:
- */
-static inline int pte_exec_kernel(pte_t pte)
-{
-	return !(pte_val(pte) & _PAGE_NX);
-}
-
 /* Rules for using set_pte: the pte being assigned *must* be
  * either not present or in a state where the hardware will
  * not attempt to update the pte.  In places where this is
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 75a656e6b3f8..2f3d90807efb 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -139,6 +139,7 @@ static inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED;
 static inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_RW; }
 static inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
 static inline int pte_huge(pte_t pte)		{ return pte_val(pte) & _PAGE_PSE; }
+static inline int pte_exec(pte_t pte)		{ return !(pte_val(pte) & _PAGE_NX); }
 
 static inline int pmd_large(pmd_t pte) {
 	return (pmd_val(pte) & (_PAGE_PSE|_PAGE_PRESENT)) ==
-- 
cgit v1.2.3-59-g8ed1b


From f0646e43acb18f0e00b00085dc88bc3f403e7930 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:43 +0100
Subject: x86: return the page table level in lookup_address()

based on this patch from Andi Kleen:

|  Subject: CPA: Return the page table level in lookup_address()
|  From: Andi Kleen <ak@suse.de>
|
|  Needed for the next change.
|
|  And change all the callers.

and ported it to x86.git.

Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c       | 3 ++-
 arch/x86/mm/init_32.c        | 3 ++-
 arch/x86/mm/pageattr_32.c    | 7 +++++--
 arch/x86/mm/pageattr_64.c    | 7 +++++--
 arch/x86/xen/mmu.c           | 9 ++++++---
 include/asm-x86/pgtable_32.h | 2 +-
 include/asm-x86/pgtable_64.h | 2 +-
 7 files changed, 22 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index f7972ae7da07..f4f8c324715f 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -613,7 +613,8 @@ no_context:
 
 #ifdef CONFIG_X86_PAE
 		if (error_code & PF_INSTR) {
-			pte_t *pte = lookup_address(address);
+			int level;
+			pte_t *pte = lookup_address(address, &level);
 
 			if (pte && pte_present(*pte) && !pte_exec(*pte))
 				printk(KERN_CRIT "kernel tried to execute "
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 5080646da771..206e3f6800b9 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -535,11 +535,12 @@ int __init set_kernel_exec(unsigned long vaddr, int enable)
 {
 	pte_t *pte;
 	int ret = 1;
+	int level;
 
 	if (!nx_enabled)
 		goto out;
 
-	pte = lookup_address(vaddr);
+	pte = lookup_address(vaddr, &level);
 	BUG_ON(!pte);
 
 	if (!pte_exec(*pte))
diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index be4656403d77..523fd5b37df9 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -18,7 +18,7 @@
 static DEFINE_SPINLOCK(cpa_lock);
 static struct list_head df_list = LIST_HEAD_INIT(df_list);
 
-pte_t *lookup_address(unsigned long address)
+pte_t *lookup_address(unsigned long address, int *level)
 {
 	pgd_t *pgd = pgd_offset_k(address);
 	pud_t *pud;
@@ -32,8 +32,10 @@ pte_t *lookup_address(unsigned long address)
 	pmd = pmd_offset(pud, address);
 	if (pmd_none(*pmd))
 		return NULL;
+	*level = 2;
 	if (pmd_large(*pmd))
 		return (pte_t *)pmd;
+	*level = 3;
 
 	return pte_offset_kernel(pmd, address);
 }
@@ -156,11 +158,12 @@ static int __change_page_attr(struct page *page, pgprot_t prot)
 	struct page *kpte_page;
 	unsigned long address;
 	pte_t *kpte;
+	int level;
 
 	BUG_ON(PageHighMem(page));
 	address = (unsigned long)page_address(page);
 
-	kpte = lookup_address(address);
+	kpte = lookup_address(address, &level);
 	if (!kpte)
 		return -EINVAL;
 
diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 14ab327cde0c..59cd066f6741 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -14,7 +14,7 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
-pte_t *lookup_address(unsigned long address)
+pte_t *lookup_address(unsigned long address, int *level)
 {
 	pgd_t *pgd = pgd_offset_k(address);
 	pud_t *pud;
@@ -29,8 +29,10 @@ pte_t *lookup_address(unsigned long address)
 	pmd = pmd_offset(pud, address);
 	if (!pmd_present(*pmd))
 		return NULL;
+	*level = 3;
 	if (pmd_large(*pmd))
 		return (pte_t *)pmd;
+	*level = 4;
 
 	pte = pte_offset_kernel(pmd, address);
 	if (pte && !pte_present(*pte))
@@ -140,8 +142,9 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
 	struct page *kpte_page;
 	pgprot_t ref_prot2;
 	pte_t *kpte;
+	int level;
 
-	kpte = lookup_address(address);
+	kpte = lookup_address(address, &level);
 	if (!kpte)
 		return 0;
 
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index e6184735545f..45aa771e73a9 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -58,7 +58,8 @@
 
 xmaddr_t arbitrary_virt_to_machine(unsigned long address)
 {
-	pte_t *pte = lookup_address(address);
+	int level;
+	pte_t *pte = lookup_address(address, &level);
 	unsigned offset = address & PAGE_MASK;
 
 	BUG_ON(pte == NULL);
@@ -70,8 +71,9 @@ void make_lowmem_page_readonly(void *vaddr)
 {
 	pte_t *pte, ptev;
 	unsigned long address = (unsigned long)vaddr;
+	int level;
 
-	pte = lookup_address(address);
+	pte = lookup_address(address, &level);
 	BUG_ON(pte == NULL);
 
 	ptev = pte_wrprotect(*pte);
@@ -84,8 +86,9 @@ void make_lowmem_page_readwrite(void *vaddr)
 {
 	pte_t *pte, ptev;
 	unsigned long address = (unsigned long)vaddr;
+	int level;
 
-	pte = lookup_address(address);
+	pte = lookup_address(address, &level);
 	BUG_ON(pte == NULL);
 
 	ptev = pte_mkwrite(*pte);
diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h
index eb8cccfa6a49..9381bd37b9b1 100644
--- a/include/asm-x86/pgtable_32.h
+++ b/include/asm-x86/pgtable_32.h
@@ -182,7 +182,7 @@ static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
  * NOTE: the return type is pte_t but if the pmd is PSE then we return it
  * as a pte too.
  */
-extern pte_t *lookup_address(unsigned long address);
+extern pte_t *lookup_address(unsigned long address, int *level);
 
 /*
  * Make a given kernel text page executable/non-executable.
diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index 29fdeb8111bb..139da50cd510 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -240,7 +240,7 @@ extern struct list_head pgd_list;
 
 extern int kern_addr_valid(unsigned long addr); 
 
-pte_t *lookup_address(unsigned long addr);
+pte_t *lookup_address(unsigned long addr, int *level);
 
 #define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
 		remap_pfn_range(vma, vaddr, pfn, size, prot)
-- 
cgit v1.2.3-59-g8ed1b


From fa2d8369a1e0e5dd0fdaaba9d40ca5187f4cd20b Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:43 +0100
Subject: x86: c_p_a(), add simple self test at boot

Since change_page_attr() is tricky code it is good to have some regression
test code. This patch maps and unmaps some random pages in the direct mapping
at boot and then dumps the state and does some simple sanity checks.

Add it with a CONFIG option.

Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/Makefile_32     |   1 +
 arch/x86/mm/Makefile_64     |   1 +
 arch/x86/mm/pageattr-test.c | 233 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 235 insertions(+)
 create mode 100644 arch/x86/mm/pageattr-test.c

(limited to 'arch')

diff --git a/arch/x86/mm/Makefile_32 b/arch/x86/mm/Makefile_32
index 6a5e981981f7..be2f55160bf8 100644
--- a/arch/x86/mm/Makefile_32
+++ b/arch/x86/mm/Makefile_32
@@ -4,6 +4,7 @@
 
 obj-y	:= init_32.o pgtable_32.o fault_32.o ioremap_32.o extable.o pageattr_32.o mmap.o
 
+obj-$(CONFIG_CPA_DEBUG) += pageattr-test.o
 obj-$(CONFIG_NUMA) += discontig_32.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_HIGHMEM) += highmem_32.o
diff --git a/arch/x86/mm/Makefile_64 b/arch/x86/mm/Makefile_64
index 09c997fe5856..cb723167631b 100644
--- a/arch/x86/mm/Makefile_64
+++ b/arch/x86/mm/Makefile_64
@@ -7,3 +7,4 @@ obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_NUMA) += numa_64.o
 obj-$(CONFIG_K8_NUMA) += k8topology_64.o
 obj-$(CONFIG_ACPI_NUMA) += srat_64.o
+obj-$(CONFIG_CPA_DEBUG) += pageattr-test.o
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
new file mode 100644
index 000000000000..4b22eb47f23a
--- /dev/null
+++ b/arch/x86/mm/pageattr-test.c
@@ -0,0 +1,233 @@
+/*
+ * self test for change_page_attr.
+ *
+ * Clears the global bit on random pages in the direct mapping, then reverts
+ * and compares page tables forwards and afterwards.
+ */
+
+#include <linux/mm.h>
+#include <linux/random.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <asm/cacheflush.h>
+#include <asm/pgtable.h>
+#include <asm/kdebug.h>
+
+enum {
+	NTEST = 400,
+#ifdef CONFIG_X86_64
+	LOWEST_LEVEL = 4,
+	LPS = (1 << PMD_SHIFT),
+#elif defined(CONFIG_X86_PAE)
+	LOWEST_LEVEL = 3,
+	LPS = (1 << PMD_SHIFT),
+#else
+	LOWEST_LEVEL = 3, /* lookup_address lies here */
+	LPS = (1 << 22),
+#endif
+	GPS = (1<<30)
+};
+
+#ifdef CONFIG_X86_64
+#include <asm/proto.h>
+#define max_mapped end_pfn_map
+#else
+#define max_mapped max_low_pfn
+#endif
+
+struct split_state {
+	long lpg, gpg, spg, exec;
+	long min_exec, max_exec;
+};
+
+static __init int print_split(struct split_state *s)
+{
+	int printed = 0;
+	long i, expected, missed = 0;
+	int err = 0;
+
+	s->lpg = s->gpg = s->spg = s->exec = 0;
+	s->min_exec = ~0UL;
+	s->max_exec = 0;
+	for (i = 0; i < max_mapped; ) {
+		int level;
+		pte_t *pte;
+		unsigned long adr = (unsigned long)__va(i << PAGE_SHIFT);
+
+		pte = lookup_address(adr, &level);
+		if (!pte) {
+			if (!printed) {
+				dump_pagetable(adr);
+				printk("CPA %lx no pte level %d\n", adr, level);
+				printed = 1;
+			}
+			missed++;
+			i++;
+			continue;
+		}
+
+		if (level == 2 && sizeof(long) == 8) {
+			s->gpg++;
+			i += GPS/PAGE_SIZE;
+		} else if (level != LOWEST_LEVEL) {
+			if (!(pte_val(*pte) & _PAGE_PSE)) {
+				printk("%lx level %d but not PSE %Lx\n",
+					adr, level, (u64)pte_val(*pte));
+				err = 1;
+			}
+			s->lpg++;
+			i += LPS/PAGE_SIZE;
+		} else {
+			s->spg++;
+			i++;
+		}
+		if (!(pte_val(*pte) & _PAGE_NX)) {
+			s->exec++;
+			if (adr < s->min_exec)
+				s->min_exec = adr;
+			if (adr > s->max_exec)
+				s->max_exec = adr;
+		}
+	}
+	printk("CPA mapping 4k %lu large %lu gb %lu x %lu[%lx-%lx] miss %lu\n",
+		s->spg, s->lpg, s->gpg, s->exec,
+		s->min_exec != ~0UL ? s->min_exec : 0, s->max_exec, missed);
+	expected = (s->gpg*GPS + s->lpg*LPS)/PAGE_SIZE + s->spg + missed;
+	if (expected != i) {
+		printk("CPA max_mapped %lu but expected %lu\n",
+			max_mapped, expected);
+		return 1;
+	}
+	return err;
+}
+
+static __init int state_same(struct split_state *a, struct split_state *b)
+{
+	return a->lpg == b->lpg && a->gpg == b->gpg && a->spg == b->spg &&
+			a->exec == b->exec;
+}
+
+static unsigned long addr[NTEST] __initdata;
+static unsigned len[NTEST] __initdata;
+
+/* Change the global bit on random pages in the direct mapping */
+static __init int exercise_pageattr(void)
+{
+	int i, k;
+	pte_t *pte, pte0;
+	int level;
+	int err;
+	struct split_state sa, sb, sc;
+	int failed = 0;
+	unsigned long *bm;
+
+	printk("CPA exercising pageattr\n");
+
+	bm = vmalloc((max_mapped + 7) / 8);
+	if (!bm) {
+		printk("CPA Cannot vmalloc bitmap\n");
+		return -ENOMEM;
+	}
+	memset(bm, 0, (max_mapped + 7) / 8);
+
+	failed += print_split(&sa);
+	srandom32(100);
+	for (i = 0; i < NTEST; i++) {
+		unsigned long pfn = random32() % max_mapped;
+		addr[i] = (unsigned long)__va(pfn << PAGE_SHIFT);
+		len[i] = random32() % 100;
+		len[i] = min_t(unsigned long, len[i], max_mapped - pfn - 1);
+		if (len[i] == 0)
+			len[i] = 1;
+
+		pte = NULL;
+		pte0 = pfn_pte(0, __pgprot(0)); /* shut gcc up */
+		for (k = 0; k < len[i]; k++) {
+			pte = lookup_address(addr[i] + k*PAGE_SIZE, &level);
+			if (!pte || pgprot_val(pte_pgprot(*pte)) == 0) {
+				addr[i] = 0;
+				break;
+			}
+			if (k == 0)
+				pte0 = *pte;
+			else if (pgprot_val(pte_pgprot(*pte)) !=
+					pgprot_val(pte_pgprot(pte0))) {
+				len[i] = k;
+				break;
+			}
+			if (test_bit(pfn + k, bm)) {
+				len[i] = k;
+				break;
+			}
+			__set_bit(pfn + k, bm);
+		}
+		if (!addr[i] || !pte || !k) {
+			addr[i] = 0;
+			continue;
+		}
+
+		err = change_page_attr(virt_to_page(addr[i]), len[i],
+			    pte_pgprot(pte_clrhuge(pte_clrglobal(pte0))));
+		if (err < 0) {
+			printk("CPA %d failed %d\n", i, err);
+			failed++;
+		}
+
+		pte = lookup_address(addr[i], &level);
+		if (!pte || pte_global(*pte) || pte_huge(*pte)) {
+			printk("CPA %lx: bad pte %Lx\n", addr[i],
+				pte ? (u64)pte_val(*pte) : 0ULL);
+			failed++;
+		}
+		if (level != LOWEST_LEVEL) {
+			printk("CPA %lx: unexpected level %d\n", addr[i],
+					level);
+			failed++;
+		}
+
+	}
+	vfree(bm);
+	global_flush_tlb();
+
+	failed += print_split(&sb);
+
+	printk("CPA reverting everything\n");
+	for (i = 0; i < NTEST; i++) {
+		if (!addr[i])
+			continue;
+		pte = lookup_address(addr[i], &level);
+		if (!pte) {
+			printk("CPA lookup of %lx failed\n", addr[i]);
+			failed++;
+			continue;
+		}
+		err = change_page_attr(virt_to_page(addr[i]), len[i],
+					  pte_pgprot(pte_mkglobal(*pte)));
+		if (err < 0) {
+			printk("CPA reverting failed: %d\n", err);
+			failed++;
+		}
+		pte = lookup_address(addr[i], &level);
+		if (!pte || !pte_global(*pte)) {
+			printk("CPA %lx: bad pte after revert %Lx\n", addr[i],
+			       pte ? (u64)pte_val(*pte) : 0ULL);
+			failed++;
+		}
+
+	}
+	global_flush_tlb();
+
+	failed += print_split(&sc);
+	if (!state_same(&sa, &sc))
+		failed++;
+
+	if (failed)
+		printk("CPA selftests NOT PASSED. Please report.\n");
+	else
+		printk("CPA selftests PASSED\n");
+
+	return 0;
+}
+
+module_init(exercise_pageattr);
-- 
cgit v1.2.3-59-g8ed1b


From 851339b1ffc2b215c7c4e448465e78a4c2f643f2 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:43 +0100
Subject: x86: clean up arch/x86/mm/pageattr-test.c

fix 15 checkpatch warnings.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr-test.c | 113 ++++++++++++++++++++++++--------------------
 1 file changed, 61 insertions(+), 52 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 4b22eb47f23a..c58fab061762 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -4,36 +4,36 @@
  * Clears the global bit on random pages in the direct mapping, then reverts
  * and compares page tables forwards and afterwards.
  */
-
-#include <linux/mm.h>
+#include <linux/bootmem.h>
 #include <linux/random.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/mm.h>
+
 #include <asm/cacheflush.h>
 #include <asm/pgtable.h>
 #include <asm/kdebug.h>
 
 enum {
-	NTEST = 400,
+	NTEST			= 400,
 #ifdef CONFIG_X86_64
-	LOWEST_LEVEL = 4,
-	LPS = (1 << PMD_SHIFT),
+	LOWEST_LEVEL		= 4,
+	LPS			= (1 << PMD_SHIFT),
 #elif defined(CONFIG_X86_PAE)
-	LOWEST_LEVEL = 3,
-	LPS = (1 << PMD_SHIFT),
+	LOWEST_LEVEL		= 3,
+	LPS			= (1 << PMD_SHIFT),
 #else
-	LOWEST_LEVEL = 3, /* lookup_address lies here */
-	LPS = (1 << 22),
+	LOWEST_LEVEL		= 3, /* lookup_address lies here */
+	LPS			= (1 << 22),
 #endif
-	GPS = (1<<30)
+	GPS			= (1<<30)
 };
 
 #ifdef CONFIG_X86_64
-#include <asm/proto.h>
-#define max_mapped end_pfn_map
+# include <asm/proto.h>
+# define max_mapped		end_pfn_map
 #else
-#define max_mapped max_low_pfn
+# define max_mapped		max_low_pfn
 #endif
 
 struct split_state {
@@ -43,23 +43,24 @@ struct split_state {
 
 static __init int print_split(struct split_state *s)
 {
-	int printed = 0;
 	long i, expected, missed = 0;
+	int printed = 0;
 	int err = 0;
 
 	s->lpg = s->gpg = s->spg = s->exec = 0;
 	s->min_exec = ~0UL;
 	s->max_exec = 0;
 	for (i = 0; i < max_mapped; ) {
+		unsigned long addr = (unsigned long)__va(i << PAGE_SHIFT);
 		int level;
 		pte_t *pte;
-		unsigned long adr = (unsigned long)__va(i << PAGE_SHIFT);
 
-		pte = lookup_address(adr, &level);
+		pte = lookup_address(addr, &level);
 		if (!pte) {
 			if (!printed) {
-				dump_pagetable(adr);
-				printk("CPA %lx no pte level %d\n", adr, level);
+				dump_pagetable(addr);
+				printk(KERN_INFO "CPA %lx no pte level %d\n",
+					addr, level);
 				printed = 1;
 			}
 			missed++;
@@ -72,8 +73,9 @@ static __init int print_split(struct split_state *s)
 			i += GPS/PAGE_SIZE;
 		} else if (level != LOWEST_LEVEL) {
 			if (!(pte_val(*pte) & _PAGE_PSE)) {
-				printk("%lx level %d but not PSE %Lx\n",
-					adr, level, (u64)pte_val(*pte));
+				printk(KERN_ERR
+					"%lx level %d but not PSE %Lx\n",
+					addr, level, (u64)pte_val(*pte));
 				err = 1;
 			}
 			s->lpg++;
@@ -84,18 +86,20 @@ static __init int print_split(struct split_state *s)
 		}
 		if (!(pte_val(*pte) & _PAGE_NX)) {
 			s->exec++;
-			if (adr < s->min_exec)
-				s->min_exec = adr;
-			if (adr > s->max_exec)
-				s->max_exec = adr;
+			if (addr < s->min_exec)
+				s->min_exec = addr;
+			if (addr > s->max_exec)
+				s->max_exec = addr;
 		}
 	}
-	printk("CPA mapping 4k %lu large %lu gb %lu x %lu[%lx-%lx] miss %lu\n",
+	printk(KERN_INFO
+		"CPA mapping 4k %lu large %lu gb %lu x %lu[%lx-%lx] miss %lu\n",
 		s->spg, s->lpg, s->gpg, s->exec,
 		s->min_exec != ~0UL ? s->min_exec : 0, s->max_exec, missed);
+
 	expected = (s->gpg*GPS + s->lpg*LPS)/PAGE_SIZE + s->spg + missed;
 	if (expected != i) {
-		printk("CPA max_mapped %lu but expected %lu\n",
+		printk(KERN_ERR "CPA max_mapped %lu but expected %lu\n",
 			max_mapped, expected);
 		return 1;
 	}
@@ -105,56 +109,62 @@ static __init int print_split(struct split_state *s)
 static __init int state_same(struct split_state *a, struct split_state *b)
 {
 	return a->lpg == b->lpg && a->gpg == b->gpg && a->spg == b->spg &&
-			a->exec == b->exec;
+		a->exec == b->exec;
 }
 
-static unsigned long addr[NTEST] __initdata;
-static unsigned len[NTEST] __initdata;
+static unsigned long __initdata addr[NTEST];
+static unsigned int __initdata len[NTEST];
 
 /* Change the global bit on random pages in the direct mapping */
 static __init int exercise_pageattr(void)
 {
-	int i, k;
+	struct split_state sa, sb, sc;
+	unsigned long *bm;
 	pte_t *pte, pte0;
+	int failed = 0;
 	int level;
+	int i, k;
 	int err;
-	struct split_state sa, sb, sc;
-	int failed = 0;
-	unsigned long *bm;
 
-	printk("CPA exercising pageattr\n");
+	printk(KERN_INFO "CPA exercising pageattr\n");
 
 	bm = vmalloc((max_mapped + 7) / 8);
 	if (!bm) {
-		printk("CPA Cannot vmalloc bitmap\n");
+		printk(KERN_ERR "CPA Cannot vmalloc bitmap\n");
 		return -ENOMEM;
 	}
 	memset(bm, 0, (max_mapped + 7) / 8);
 
 	failed += print_split(&sa);
 	srandom32(100);
+
 	for (i = 0; i < NTEST; i++) {
 		unsigned long pfn = random32() % max_mapped;
+
 		addr[i] = (unsigned long)__va(pfn << PAGE_SHIFT);
 		len[i] = random32() % 100;
 		len[i] = min_t(unsigned long, len[i], max_mapped - pfn - 1);
+
 		if (len[i] == 0)
 			len[i] = 1;
 
 		pte = NULL;
 		pte0 = pfn_pte(0, __pgprot(0)); /* shut gcc up */
+
 		for (k = 0; k < len[i]; k++) {
 			pte = lookup_address(addr[i] + k*PAGE_SIZE, &level);
 			if (!pte || pgprot_val(pte_pgprot(*pte)) == 0) {
 				addr[i] = 0;
 				break;
 			}
-			if (k == 0)
+			if (k == 0) {
 				pte0 = *pte;
-			else if (pgprot_val(pte_pgprot(*pte)) !=
+			} else {
+				if (pgprot_val(pte_pgprot(*pte)) !=
 					pgprot_val(pte_pgprot(pte0))) {
-				len[i] = k;
-				break;
+					len[i] = k;
+					break;
+				}
 			}
 			if (test_bit(pfn + k, bm)) {
 				len[i] = k;
@@ -170,19 +180,19 @@ static __init int exercise_pageattr(void)
 		err = change_page_attr(virt_to_page(addr[i]), len[i],
 			    pte_pgprot(pte_clrhuge(pte_clrglobal(pte0))));
 		if (err < 0) {
-			printk("CPA %d failed %d\n", i, err);
+			printk(KERN_ERR "CPA %d failed %d\n", i, err);
 			failed++;
 		}
 
 		pte = lookup_address(addr[i], &level);
 		if (!pte || pte_global(*pte) || pte_huge(*pte)) {
-			printk("CPA %lx: bad pte %Lx\n", addr[i],
+			printk(KERN_ERR "CPA %lx: bad pte %Lx\n", addr[i],
 				pte ? (u64)pte_val(*pte) : 0ULL);
 			failed++;
 		}
 		if (level != LOWEST_LEVEL) {
-			printk("CPA %lx: unexpected level %d\n", addr[i],
-					level);
+			printk(KERN_ERR "CPA %lx: unexpected level %d\n",
+				addr[i], level);
 			failed++;
 		}
 
@@ -192,26 +202,26 @@ static __init int exercise_pageattr(void)
 
 	failed += print_split(&sb);
 
-	printk("CPA reverting everything\n");
+	printk(KERN_INFO "CPA reverting everything\n");
 	for (i = 0; i < NTEST; i++) {
 		if (!addr[i])
 			continue;
 		pte = lookup_address(addr[i], &level);
 		if (!pte) {
-			printk("CPA lookup of %lx failed\n", addr[i]);
+			printk(KERN_ERR "CPA lookup of %lx failed\n", addr[i]);
 			failed++;
 			continue;
 		}
 		err = change_page_attr(virt_to_page(addr[i]), len[i],
 					  pte_pgprot(pte_mkglobal(*pte)));
 		if (err < 0) {
-			printk("CPA reverting failed: %d\n", err);
+			printk(KERN_ERR "CPA reverting failed: %d\n", err);
 			failed++;
 		}
 		pte = lookup_address(addr[i], &level);
 		if (!pte || !pte_global(*pte)) {
-			printk("CPA %lx: bad pte after revert %Lx\n", addr[i],
-			       pte ? (u64)pte_val(*pte) : 0ULL);
+			printk(KERN_ERR "CPA %lx: bad pte after revert %Lx\n",
+				addr[i], pte ? (u64)pte_val(*pte) : 0ULL);
 			failed++;
 		}
 
@@ -223,11 +233,10 @@ static __init int exercise_pageattr(void)
 		failed++;
 
 	if (failed)
-		printk("CPA selftests NOT PASSED. Please report.\n");
+		printk(KERN_ERR "CPA selftests NOT PASSED. Please report.\n");
 	else
-		printk("CPA selftests PASSED\n");
+		printk(KERN_INFO "CPA selftests PASSED\n");
 
 	return 0;
 }
-
 module_init(exercise_pageattr);
-- 
cgit v1.2.3-59-g8ed1b


From 718f94974d59f57a57480d2448beee05720ab237 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:33:43 +0100
Subject: x86: cleanup boot_ioremap_32.c

Coding style cleanup before modifying the file.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/boot_ioremap_32.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/boot_ioremap_32.c b/arch/x86/mm/boot_ioremap_32.c
index b20f74a2770f..7ede1e3e1f42 100644
--- a/arch/x86/mm/boot_ioremap_32.c
+++ b/arch/x86/mm/boot_ioremap_32.c
@@ -1,7 +1,7 @@
 /*
  * arch/i386/mm/boot_ioremap.c
- * 
- * Re-map functions for early boot-time before paging_init() when the 
+ *
+ * Re-map functions for early boot-time before paging_init() when the
  * boot-time pagetables are still in use
  *
  * Written by Dave Hansen <haveblue@us.ibm.com>
@@ -23,15 +23,15 @@
 #include <linux/init.h>
 #include <linux/stddef.h>
 
-/* 
- * I'm cheating here.  It is known that the two boot PTE pages are 
+/*
+ * I'm cheating here.  It is known that the two boot PTE pages are
  * allocated next to each other.  I'm pretending that they're just
- * one big array. 
+ * one big array.
  */
 
 #define BOOT_PTE_PTRS (PTRS_PER_PTE*2)
 
-static unsigned long boot_pte_index(unsigned long vaddr) 
+static unsigned long boot_pte_index(unsigned long vaddr)
 {
 	return __pa(vaddr) >> PAGE_SHIFT;
 }
@@ -47,7 +47,7 @@ static inline boot_pte_t* boot_vaddr_to_pte(void *address)
  * phys_addr and virtual_source, and who also has a preference
  * about which virtual address from which to steal ptes
  */
-static void __boot_ioremap(unsigned long phys_addr, unsigned long nrpages, 
+static void __boot_ioremap(unsigned long phys_addr, unsigned long nrpages,
 		    void* virtual_source)
 {
 	boot_pte_t* pte;
@@ -70,7 +70,7 @@ static __initdata char boot_ioremap_space[BOOT_IOREMAP_SIZE]
 /*
  * This only applies to things which need to ioremap before paging_init()
  * bt_ioremap() and plain ioremap() are both useless at this point.
- * 
+ *
  * When used, we're still using the boot-time pagetables, which only
  * have 2 PTE pages mapping the first 8MB
  *
@@ -82,18 +82,18 @@ __init void* boot_ioremap(unsigned long phys_addr, unsigned long size)
 {
 	unsigned long last_addr, offset;
 	unsigned int nrpages;
-	
+
 	last_addr = phys_addr + size - 1;
 
 	/* page align the requested address */
 	offset = phys_addr & ~PAGE_MASK;
 	phys_addr &= PAGE_MASK;
 	size = PAGE_ALIGN(last_addr) - phys_addr;
-	
+
 	nrpages = size >> PAGE_SHIFT;
 	if (nrpages > BOOT_IOREMAP_PAGES)
 		return NULL;
-	
+
 	__boot_ioremap(phys_addr, nrpages, boot_ioremap_space);
 
 	return &boot_ioremap_space[offset];
-- 
cgit v1.2.3-59-g8ed1b


From fbd3bfd87f91e6a454f3f61f67ee745f0cb59aa4 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Wed, 30 Jan 2008 13:33:43 +0100
Subject: x86: use __PAGE_KERNEL_EXEC in ioremap_64.c

This patch replaces the manual permission setup for pages in ioremap_64.c with
the pre-defined __PAGE_KERNEL_EXEC value.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap_64.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
index 6fbd3c7932e0..d6cf14976827 100644
--- a/arch/x86/mm/ioremap_64.c
+++ b/arch/x86/mm/ioremap_64.c
@@ -84,8 +84,7 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
 	if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
 		return (__force void __iomem *)phys_to_virt(phys_addr);
 
-	pgprot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_GLOBAL
-			  | _PAGE_DIRTY | _PAGE_ACCESSED | flags);
+	pgprot = __pgprot(__PAGE_KERNEL_EXEC | _PAGE_GLOBAL | flags);
 	/*
 	 * Mappings have to be page-aligned
 	 */
-- 
cgit v1.2.3-59-g8ed1b


From 4138cc3418f5eaa7524ff8e927102863f1ba0ea5 Mon Sep 17 00:00:00 2001
From: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Date: Wed, 30 Jan 2008 13:33:43 +0100
Subject: x86: set strong uncacheable where UC is really desired

Also use _PAGE_PWT for all the mappings which need uncache mapping.
Instead of existing PAT2 which is UC- (and can be overwritten by MTRRs),
we now use PAT3 which is strong uncacheable.

This makes it consistent with pgprot_noncached()

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap_32.c | 2 +-
 arch/x86/mm/ioremap_64.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 0b278315d737..ef0f6a452ee1 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -119,7 +119,7 @@ EXPORT_SYMBOL(__ioremap);
 void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
 {
 	unsigned long last_addr;
-	void __iomem *p = __ioremap(phys_addr, size, _PAGE_PCD);
+	void __iomem *p = __ioremap(phys_addr, size, _PAGE_PCD | _PAGE_PWT);
 	if (!p) 
 		return p; 
 
diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
index d6cf14976827..2815ab60009b 100644
--- a/arch/x86/mm/ioremap_64.c
+++ b/arch/x86/mm/ioremap_64.c
@@ -138,7 +138,7 @@ EXPORT_SYMBOL(__ioremap);
 
 void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
 {
-	return __ioremap(phys_addr, size, _PAGE_PCD);
+	return __ioremap(phys_addr, size, _PAGE_PCD | _PAGE_PWT);
 }
 EXPORT_SYMBOL(ioremap_nocache);
 
-- 
cgit v1.2.3-59-g8ed1b


From 0947b2f31ca1ea1211d3cde2dbd8fcec579ef395 Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:33:44 +0100
Subject: i386 boot: replace boot_ioremap with enhanced bt_ioremap - enhance
 bt_ioremap

This patch makes it possible for bt_ioremap() to be used before
paging_init(), via providing an early implementation of set_fixmap()
that can be used before paging_init().

This way boot_ioremap() can be replaced by bt_ioremap().

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/setup_32.c |  1 +
 arch/x86/mm/init_32.c      |  2 ++
 arch/x86/mm/ioremap_32.c   | 87 ++++++++++++++++++++++++++++++++++++++++++++--
 include/asm-x86/io_32.h    |  3 ++
 4 files changed, 91 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 83ba3ca5f431..35db426de300 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -697,6 +697,7 @@ void __init setup_arch(char **cmdline_p)
 	memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data));
 	pre_setup_arch_hook();
 	early_cpu_init();
+	bt_ioremap_init();
 
 #ifdef CONFIG_EFI
 	if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 206e3f6800b9..f4e1894367a6 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -429,9 +429,11 @@ static void __init pagetable_init (void)
 	 * Fixed mappings, only the page table structure has to be
 	 * created - mappings will be set by set_fixmap():
 	 */
+	bt_ioremap_clear();
 	vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
 	end = (FIXADDR_TOP + PMD_SIZE - 1) & PMD_MASK;
 	page_table_range_init(vaddr, end, pgd_base);
+	bt_ioremap_reset();
 
 	permanent_kmaps_init(pgd_base);
 
diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index ef0f6a452ee1..fd1f5b6cfa20 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -208,6 +208,89 @@ void iounmap(volatile void __iomem *addr)
 }
 EXPORT_SYMBOL(iounmap);
 
+static __initdata int after_paging_init;
+static __initdata unsigned long bm_pte[1024]
+				__attribute__((aligned(PAGE_SIZE)));
+
+static inline unsigned long * __init bt_ioremap_pgd(unsigned long addr)
+{
+	return (unsigned long *)swapper_pg_dir + ((addr >> 22) & 1023);
+}
+
+static inline unsigned long * __init bt_ioremap_pte(unsigned long addr)
+{
+	return bm_pte + ((addr >> PAGE_SHIFT) & 1023);
+}
+
+void __init bt_ioremap_init(void)
+{
+	unsigned long *pgd;
+
+	pgd = bt_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
+	*pgd = __pa(bm_pte) | _PAGE_TABLE;
+	memset(bm_pte, 0, sizeof(bm_pte));
+	BUG_ON(pgd != bt_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
+}
+
+void __init bt_ioremap_clear(void)
+{
+	unsigned long *pgd;
+
+	pgd = bt_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
+	*pgd = 0;
+	__flush_tlb_all();
+}
+
+void __init bt_ioremap_reset(void)
+{
+	enum fixed_addresses idx;
+	unsigned long *pte, phys, addr;
+
+	after_paging_init = 1;
+	for (idx = FIX_BTMAP_BEGIN; idx <= FIX_BTMAP_END; idx--) {
+		addr = fix_to_virt(idx);
+		pte = bt_ioremap_pte(addr);
+		if (!*pte & _PAGE_PRESENT) {
+			phys = *pte & PAGE_MASK;
+			set_fixmap(idx, phys);
+		}
+	}
+}
+
+static void __init __bt_set_fixmap(enum fixed_addresses idx,
+				   unsigned long phys, pgprot_t flags)
+{
+	unsigned long *pte, addr = __fix_to_virt(idx);
+
+	if (idx >= __end_of_fixed_addresses) {
+		BUG();
+		return;
+	}
+	pte = bt_ioremap_pte(addr);
+	if (pgprot_val(flags))
+		*pte = (phys & PAGE_MASK) | pgprot_val(flags);
+	else
+		*pte = 0;
+	__flush_tlb_one(addr);
+}
+
+static inline void __init bt_set_fixmap(enum fixed_addresses idx,
+					unsigned long phys)
+{
+	if (after_paging_init)
+		set_fixmap(idx, phys);
+	else
+		__bt_set_fixmap(idx, phys, PAGE_KERNEL);
+}
+
+static inline void __init bt_clear_fixmap(enum fixed_addresses idx)
+{
+	if (after_paging_init)
+		clear_fixmap(idx);
+	else
+		__bt_set_fixmap(idx, 0, __pgprot(0));
+}
+
 void __init *bt_ioremap(unsigned long phys_addr, unsigned long size)
 {
 	unsigned long offset, last_addr;
@@ -244,7 +327,7 @@ void __init *bt_ioremap(unsigned long phys_addr, unsigned long size)
 	 */
 	idx = FIX_BTMAP_BEGIN;
 	while (nrpages > 0) {
-		set_fixmap(idx, phys_addr);
+		bt_set_fixmap(idx, phys_addr);
 		phys_addr += PAGE_SIZE;
 		--idx;
 		--nrpages;
@@ -267,7 +350,7 @@ void __init bt_iounmap(void *addr, unsigned long size)
 
 	idx = FIX_BTMAP_BEGIN;
 	while (nrpages > 0) {
-		clear_fixmap(idx);
+		bt_clear_fixmap(idx);
 		--idx;
 		--nrpages;
 	}
diff --git a/include/asm-x86/io_32.h b/include/asm-x86/io_32.h
index db3978846379..f7b733d9ace9 100644
--- a/include/asm-x86/io_32.h
+++ b/include/asm-x86/io_32.h
@@ -139,6 +139,9 @@ extern void iounmap(volatile void __iomem *addr);
  * mappings, before the real ioremap() is functional.
  * A boot-time mapping is currently limited to at most 16 pages.
  */
+extern void bt_ioremap_init(void);
+extern void bt_ioremap_clear(void);
+extern void bt_ioremap_reset(void);
 extern void *bt_ioremap(unsigned long offset, unsigned long size);
 extern void bt_iounmap(void *addr, unsigned long size);
 extern void __iomem *fix_ioremap(unsigned idx, unsigned long phys);
-- 
cgit v1.2.3-59-g8ed1b


From 4716e79c9946044a53a65418cfba04836f6a5c36 Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:33:44 +0100
Subject: x86: replace boot_ioremap() with enhanced bt_ioremap() - remove
 boot_ioremap()

This patch replaces boot_ioremap invokation with bt_ioremap and
removes the boot_ioremap implementation.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig              |   6 ---
 arch/x86/kernel/srat_32.c     |   8 ++--
 arch/x86/mm/Makefile_32       |   1 -
 arch/x86/mm/boot_ioremap_32.c | 100 ------------------------------------------
 include/asm-x86/efi.h         |   8 +---
 5 files changed, 5 insertions(+), 118 deletions(-)
 delete mode 100644 arch/x86/mm/boot_ioremap_32.c

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 92dc919c7640..fb3eea3e38ee 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1009,12 +1009,6 @@ config IRQBALANCE
 	  The default yes will allow the kernel to do irq load balancing.
 	  Saying no will keep the kernel from doing irq load balancing.
 
-# turning this on wastes a bunch of space.
-# Summit needs it only when NUMA is on
-config BOOT_IOREMAP
-	def_bool y
-	depends on X86_32 && (((X86_SUMMIT || X86_GENERICARCH) && NUMA) || (X86 && EFI))
-
 config SECCOMP
 	def_bool y
 	prompt "Enable seccomp to safely compute untrusted bytecode"
diff --git a/arch/x86/kernel/srat_32.c b/arch/x86/kernel/srat_32.c
index 2a8713ec0f9a..24bfd4a9e62a 100644
--- a/arch/x86/kernel/srat_32.c
+++ b/arch/x86/kernel/srat_32.c
@@ -57,8 +57,6 @@ static struct node_memory_chunk_s node_memory_chunk[MAXCHUNKS];
 static int num_memory_chunks;		/* total number of memory chunks */
 static u8 __initdata apicid_to_pxm[MAX_APICID];
 
-extern void * boot_ioremap(unsigned long, unsigned long);
-
 /* Identify CPU proximity domains */
 static void __init parse_cpu_affinity_structure(char *p)
 {
@@ -299,7 +297,7 @@ int __init get_memcfg_from_srat(void)
 	}
 
 	rsdt = (struct acpi_table_rsdt *)
-	    boot_ioremap(rsdp->rsdt_physical_address, sizeof(struct acpi_table_rsdt));
+	    bt_ioremap(rsdp->rsdt_physical_address, sizeof(struct acpi_table_rsdt));
 
 	if (!rsdt) {
 		printk(KERN_WARNING
@@ -339,11 +337,11 @@ int __init get_memcfg_from_srat(void)
 	for (i = 0; i < tables; i++) {
 		/* Map in header, then map in full table length. */
 		header = (struct acpi_table_header *)
-			boot_ioremap(saved_rsdt.table.table_offset_entry[i], sizeof(struct acpi_table_header));
+			bt_ioremap(saved_rsdt.table.table_offset_entry[i], sizeof(struct acpi_table_header));
 		if (!header)
 			break;
 		header = (struct acpi_table_header *)
-			boot_ioremap(saved_rsdt.table.table_offset_entry[i], header->length);
+			bt_ioremap(saved_rsdt.table.table_offset_entry[i], header->length);
 		if (!header)
 			break;
 
diff --git a/arch/x86/mm/Makefile_32 b/arch/x86/mm/Makefile_32
index be2f55160bf8..1aeba3bf34bd 100644
--- a/arch/x86/mm/Makefile_32
+++ b/arch/x86/mm/Makefile_32
@@ -8,4 +8,3 @@ obj-$(CONFIG_CPA_DEBUG) += pageattr-test.o
 obj-$(CONFIG_NUMA) += discontig_32.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_HIGHMEM) += highmem_32.o
-obj-$(CONFIG_BOOT_IOREMAP) += boot_ioremap_32.o
diff --git a/arch/x86/mm/boot_ioremap_32.c b/arch/x86/mm/boot_ioremap_32.c
deleted file mode 100644
index 7ede1e3e1f42..000000000000
--- a/arch/x86/mm/boot_ioremap_32.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * arch/i386/mm/boot_ioremap.c
- *
- * Re-map functions for early boot-time before paging_init() when the
- * boot-time pagetables are still in use
- *
- * Written by Dave Hansen <haveblue@us.ibm.com>
- */
-
-
-/*
- * We need to use the 2-level pagetable functions, but CONFIG_X86_PAE
- * keeps that from happening.  If anyone has a better way, I'm listening.
- *
- * boot_pte_t is defined only if this all works correctly
- */
-
-#undef CONFIG_X86_PAE
-#undef CONFIG_PARAVIRT
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/tlbflush.h>
-#include <linux/init.h>
-#include <linux/stddef.h>
-
-/*
- * I'm cheating here.  It is known that the two boot PTE pages are
- * allocated next to each other.  I'm pretending that they're just
- * one big array.
- */
-
-#define BOOT_PTE_PTRS (PTRS_PER_PTE*2)
-
-static unsigned long boot_pte_index(unsigned long vaddr)
-{
-	return __pa(vaddr) >> PAGE_SHIFT;
-}
-
-static inline boot_pte_t* boot_vaddr_to_pte(void *address)
-{
-	boot_pte_t* boot_pg = (boot_pte_t*)pg0;
-	return &boot_pg[boot_pte_index((unsigned long)address)];
-}
-
-/*
- * This is only for a caller who is clever enough to page-align
- * phys_addr and virtual_source, and who also has a preference
- * about which virtual address from which to steal ptes
- */
-static void __boot_ioremap(unsigned long phys_addr, unsigned long nrpages,
-		    void* virtual_source)
-{
-	boot_pte_t* pte;
-	int i;
-	char *vaddr = virtual_source;
-
-	pte = boot_vaddr_to_pte(virtual_source);
-	for (i=0; i < nrpages; i++, phys_addr += PAGE_SIZE, pte++) {
-		set_pte(pte, pfn_pte(phys_addr>>PAGE_SHIFT, PAGE_KERNEL));
-		__flush_tlb_one((unsigned long) &vaddr[i*PAGE_SIZE]);
-	}
-}
-
-/* the virtual space we're going to remap comes from this array */
-#define BOOT_IOREMAP_PAGES 4
-#define BOOT_IOREMAP_SIZE (BOOT_IOREMAP_PAGES*PAGE_SIZE)
-static __initdata char boot_ioremap_space[BOOT_IOREMAP_SIZE]
-		       __attribute__ ((aligned (PAGE_SIZE)));
-
-/*
- * This only applies to things which need to ioremap before paging_init()
- * bt_ioremap() and plain ioremap() are both useless at this point.
- *
- * When used, we're still using the boot-time pagetables, which only
- * have 2 PTE pages mapping the first 8MB
- *
- * There is no unmap.  The boot-time PTE pages aren't used after boot.
- * If you really want the space back, just remap it yourself.
- * boot_ioremap(&ioremap_space-PAGE_OFFSET, BOOT_IOREMAP_SIZE)
- */
-__init void* boot_ioremap(unsigned long phys_addr, unsigned long size)
-{
-	unsigned long last_addr, offset;
-	unsigned int nrpages;
-
-	last_addr = phys_addr + size - 1;
-
-	/* page align the requested address */
-	offset = phys_addr & ~PAGE_MASK;
-	phys_addr &= PAGE_MASK;
-	size = PAGE_ALIGN(last_addr) - phys_addr;
-
-	nrpages = size >> PAGE_SHIFT;
-	if (nrpages > BOOT_IOREMAP_PAGES)
-		return NULL;
-
-	__boot_ioremap(phys_addr, nrpages, boot_ioremap_space);
-
-	return &boot_ioremap_space[offset];
-}
diff --git a/include/asm-x86/efi.h b/include/asm-x86/efi.h
index 6d54502755aa..10fcf20bdc73 100644
--- a/include/asm-x86/efi.h
+++ b/include/asm-x86/efi.h
@@ -32,13 +32,9 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...);
 	efi_call_virt(f, a1, a2, a3, a4, a5)
 #define efi_call_virt6(f, a1, a2, a3, a4, a5, a6)	\
 	efi_call_virt(f, a1, a2, a3, a4, a5, a6)
-/*
- * We require an early boot_ioremap mapping mechanism initially
- */
-extern void *boot_ioremap(unsigned long, unsigned long);
 
-#define efi_early_ioremap(addr, size)		boot_ioremap(addr, size)
-#define efi_early_iounmap(vaddr, size)
+#define efi_early_ioremap(addr, size)		bt_ioremap(addr, size)
+#define efi_early_iounmap(vaddr, size)		bt_iounmap(vaddr, size)
 
 #define efi_ioremap(addr, size)			ioremap(addr, size)
 
-- 
cgit v1.2.3-59-g8ed1b


From beacfaac3f23b30814aafee37a055257c7062ef3 Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:33:44 +0100
Subject: x86 32-bit boot: rename bt_ioremap() to early_ioremap()

This patch renames bt_ioremap to early_ioremap, which is used in
x86_64. This makes it easier to merge i386 and x86_64 usage.

[ mingo@elte.hu: fix ]

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/efi.c      | 24 ++++++++++++------------
 arch/x86/kernel/efi_32.c   |  2 +-
 arch/x86/kernel/setup_32.c |  6 +++---
 arch/x86/kernel/srat_32.c  |  6 +++---
 arch/x86/mm/init_32.c      |  4 ++--
 arch/x86/mm/ioremap_32.c   | 38 +++++++++++++++++++-------------------
 include/asm-x86/dmi.h      |  7 ++-----
 include/asm-x86/efi.h      |  8 --------
 include/asm-x86/io_32.h    | 16 ++++++++--------
 9 files changed, 50 insertions(+), 61 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index 2939b015c2ed..5d492f99d967 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -256,12 +256,12 @@ void __init efi_init(void)
 	memmap.desc_version = boot_params.efi_info.efi_memdesc_version;
 	memmap.desc_size = boot_params.efi_info.efi_memdesc_size;
 
-	efi.systab = efi_early_ioremap((unsigned long)efi_phys.systab,
-				       sizeof(efi_system_table_t));
+	efi.systab = early_ioremap((unsigned long)efi_phys.systab,
+				   sizeof(efi_system_table_t));
 	if (efi.systab == NULL)
 		printk(KERN_ERR "Couldn't map the EFI system table!\n");
 	memcpy(&efi_systab, efi.systab, sizeof(efi_system_table_t));
-	efi_early_iounmap(efi.systab, sizeof(efi_system_table_t));
+	early_iounmap(efi.systab, sizeof(efi_system_table_t));
 	efi.systab = &efi_systab;
 
 	/*
@@ -278,14 +278,14 @@ void __init efi_init(void)
 	/*
 	 * Show what we know for posterity
 	 */
-	c16 = tmp = efi_early_ioremap(efi.systab->fw_vendor, 2);
+	c16 = tmp = early_ioremap(efi.systab->fw_vendor, 2);
 	if (c16) {
 		for (i = 0; i < sizeof(vendor) && *c16; ++i)
 			vendor[i] = *c16++;
 		vendor[i] = '\0';
 	} else
 		printk(KERN_ERR PFX "Could not map the firmware vendor!\n");
-	efi_early_iounmap(tmp, 2);
+	early_iounmap(tmp, 2);
 
 	printk(KERN_INFO "EFI v%u.%.02u by %s \n",
 	       efi.systab->hdr.revision >> 16,
@@ -294,7 +294,7 @@ void __init efi_init(void)
 	/*
 	 * Let's see what config tables the firmware passed to us.
 	 */
-	config_tables = efi_early_ioremap(
+	config_tables = early_ioremap(
 		efi.systab->tables,
 		efi.systab->nr_tables * sizeof(efi_config_table_t));
 	if (config_tables == NULL)
@@ -328,7 +328,7 @@ void __init efi_init(void)
 		}
 	}
 	printk("\n");
-	efi_early_iounmap(config_tables,
+	early_iounmap(config_tables,
 			  efi.systab->nr_tables * sizeof(efi_config_table_t));
 
 	/*
@@ -337,8 +337,8 @@ void __init efi_init(void)
 	 * address of several of the EFI runtime functions, needed to
 	 * set the firmware into virtual mode.
 	 */
-	runtime = efi_early_ioremap((unsigned long)efi.systab->runtime,
-				    sizeof(efi_runtime_services_t));
+	runtime = early_ioremap((unsigned long)efi.systab->runtime,
+				sizeof(efi_runtime_services_t));
 	if (runtime != NULL) {
 		/*
 		 * We will only need *early* access to the following
@@ -357,11 +357,11 @@ void __init efi_init(void)
 	} else
 		printk(KERN_ERR "Could not map the EFI runtime service "
 		       "table!\n");
-	efi_early_iounmap(runtime, sizeof(efi_runtime_services_t));
+	early_iounmap(runtime, sizeof(efi_runtime_services_t));
 
 	/* Map the EFI memory map */
-	memmap.map = efi_early_ioremap((unsigned long)memmap.phys_map,
-				       memmap.nr_map * memmap.desc_size);
+	memmap.map = early_ioremap((unsigned long)memmap.phys_map,
+				   memmap.nr_map * memmap.desc_size);
 	if (memmap.map == NULL)
 		printk(KERN_ERR "Could not map the EFI memory map!\n");
 	memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size);
diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c
index afd2c3b039d6..114b896d7573 100644
--- a/arch/x86/kernel/efi_32.c
+++ b/arch/x86/kernel/efi_32.c
@@ -117,7 +117,7 @@ void __init efi_map_memmap(void)
 {
 	memmap.map = NULL;
 
-	memmap.map = bt_ioremap((unsigned long) memmap.phys_map,
+	memmap.map = early_ioremap((unsigned long) memmap.phys_map,
 			(memmap.nr_map * memmap.desc_size));
 	if (memmap.map == NULL)
 		printk(KERN_ERR "Could not remap the EFI memmap!\n");
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 35db426de300..c038b09b1723 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -577,9 +577,9 @@ static void __init relocate_initrd(void)
 		if (clen > MAX_MAP_CHUNK-slop)
 			clen = MAX_MAP_CHUNK-slop;
 		mapaddr = ramdisk_image & PAGE_MASK;
-		p = bt_ioremap(mapaddr, clen+slop);
+		p = early_ioremap(mapaddr, clen+slop);
 		memcpy(q, p+slop, clen);
-		bt_iounmap(p, clen+slop);
+		early_iounmap(p, clen+slop);
 		q += clen;
 		ramdisk_image += clen;
 		ramdisk_size  -= clen;
@@ -697,7 +697,7 @@ void __init setup_arch(char **cmdline_p)
 	memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data));
 	pre_setup_arch_hook();
 	early_cpu_init();
-	bt_ioremap_init();
+	early_ioremap_init();
 
 #ifdef CONFIG_EFI
 	if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
diff --git a/arch/x86/kernel/srat_32.c b/arch/x86/kernel/srat_32.c
index 24bfd4a9e62a..2bf6903cb444 100644
--- a/arch/x86/kernel/srat_32.c
+++ b/arch/x86/kernel/srat_32.c
@@ -297,7 +297,7 @@ int __init get_memcfg_from_srat(void)
 	}
 
 	rsdt = (struct acpi_table_rsdt *)
-	    bt_ioremap(rsdp->rsdt_physical_address, sizeof(struct acpi_table_rsdt));
+	    early_ioremap(rsdp->rsdt_physical_address, sizeof(struct acpi_table_rsdt));
 
 	if (!rsdt) {
 		printk(KERN_WARNING
@@ -337,11 +337,11 @@ int __init get_memcfg_from_srat(void)
 	for (i = 0; i < tables; i++) {
 		/* Map in header, then map in full table length. */
 		header = (struct acpi_table_header *)
-			bt_ioremap(saved_rsdt.table.table_offset_entry[i], sizeof(struct acpi_table_header));
+			early_ioremap(saved_rsdt.table.table_offset_entry[i], sizeof(struct acpi_table_header));
 		if (!header)
 			break;
 		header = (struct acpi_table_header *)
-			bt_ioremap(saved_rsdt.table.table_offset_entry[i], header->length);
+			early_ioremap(saved_rsdt.table.table_offset_entry[i], header->length);
 		if (!header)
 			break;
 
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index f4e1894367a6..e00c1d7128b1 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -429,11 +429,11 @@ static void __init pagetable_init (void)
 	 * Fixed mappings, only the page table structure has to be
 	 * created - mappings will be set by set_fixmap():
 	 */
-	bt_ioremap_clear();
+	early_ioremap_clear();
 	vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
 	end = (FIXADDR_TOP + PMD_SIZE - 1) & PMD_MASK;
 	page_table_range_init(vaddr, end, pgd_base);
-	bt_ioremap_reset();
+	early_ioremap_reset();
 
 	permanent_kmaps_init(pgd_base);
 
diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index fd1f5b6cfa20..43b5e9fd6370 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -212,36 +212,36 @@ static __initdata int after_paging_init;
 static __initdata unsigned long bm_pte[1024]
 				__attribute__((aligned(PAGE_SIZE)));
 
-static inline unsigned long * __init bt_ioremap_pgd(unsigned long addr)
+static inline unsigned long * __init early_ioremap_pgd(unsigned long addr)
 {
 	return (unsigned long *)swapper_pg_dir + ((addr >> 22) & 1023);
 }
 
-static inline unsigned long * __init bt_ioremap_pte(unsigned long addr)
+static inline unsigned long * __init early_ioremap_pte(unsigned long addr)
 {
 	return bm_pte + ((addr >> PAGE_SHIFT) & 1023);
 }
 
-void __init bt_ioremap_init(void)
+void __init early_ioremap_init(void)
 {
 	unsigned long *pgd;
 
-	pgd = bt_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
+	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
 	*pgd = __pa(bm_pte) | _PAGE_TABLE;
 	memset(bm_pte, 0, sizeof(bm_pte));
-	BUG_ON(pgd != bt_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
+	BUG_ON(pgd != early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
 }
 
-void __init bt_ioremap_clear(void)
+void __init early_ioremap_clear(void)
 {
 	unsigned long *pgd;
 
-	pgd = bt_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
+	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
 	*pgd = 0;
 	__flush_tlb_all();
 }
 
-void __init bt_ioremap_reset(void)
+void __init early_ioremap_reset(void)
 {
 	enum fixed_addresses idx;
 	unsigned long *pte, phys, addr;
@@ -249,7 +249,7 @@ void __init bt_ioremap_reset(void)
 	after_paging_init = 1;
 	for (idx = FIX_BTMAP_BEGIN; idx <= FIX_BTMAP_END; idx--) {
 		addr = fix_to_virt(idx);
-		pte = bt_ioremap_pte(addr);
+		pte = early_ioremap_pte(addr);
 		if (!*pte & _PAGE_PRESENT) {
 			phys = *pte & PAGE_MASK;
 			set_fixmap(idx, phys);
@@ -257,7 +257,7 @@ void __init bt_ioremap_reset(void)
 	}
 }
 
-static void __init __bt_set_fixmap(enum fixed_addresses idx,
+static void __init __early_set_fixmap(enum fixed_addresses idx,
 				   unsigned long phys, pgprot_t flags)
 {
 	unsigned long *pte, addr = __fix_to_virt(idx);
@@ -266,7 +266,7 @@ static void __init __bt_set_fixmap(enum fixed_addresses idx,
 		BUG();
 		return;
 	}
-	pte = bt_ioremap_pte(addr);
+	pte = early_ioremap_pte(addr);
 	if (pgprot_val(flags))
 		*pte = (phys & PAGE_MASK) | pgprot_val(flags);
 	else
@@ -274,24 +274,24 @@ static void __init __bt_set_fixmap(enum fixed_addresses idx,
 	__flush_tlb_one(addr);
 }
 
-static inline void __init bt_set_fixmap(enum fixed_addresses idx,
+static inline void __init early_set_fixmap(enum fixed_addresses idx,
 					unsigned long phys)
 {
 	if (after_paging_init)
 		set_fixmap(idx, phys);
 	else
-		__bt_set_fixmap(idx, phys, PAGE_KERNEL);
+		__early_set_fixmap(idx, phys, PAGE_KERNEL);
 }
 
-static inline void __init bt_clear_fixmap(enum fixed_addresses idx)
+static inline void __init early_clear_fixmap(enum fixed_addresses idx)
 {
 	if (after_paging_init)
 		clear_fixmap(idx);
 	else
-		__bt_set_fixmap(idx, 0, __pgprot(0));
+		__early_set_fixmap(idx, 0, __pgprot(0));
 }
 
-void __init *bt_ioremap(unsigned long phys_addr, unsigned long size)
+void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 {
 	unsigned long offset, last_addr;
 	unsigned int nrpages;
@@ -327,7 +327,7 @@ void __init *bt_ioremap(unsigned long phys_addr, unsigned long size)
 	 */
 	idx = FIX_BTMAP_BEGIN;
 	while (nrpages > 0) {
-		bt_set_fixmap(idx, phys_addr);
+		early_set_fixmap(idx, phys_addr);
 		phys_addr += PAGE_SIZE;
 		--idx;
 		--nrpages;
@@ -335,7 +335,7 @@ void __init *bt_ioremap(unsigned long phys_addr, unsigned long size)
 	return (void*) (offset + fix_to_virt(FIX_BTMAP_BEGIN));
 }
 
-void __init bt_iounmap(void *addr, unsigned long size)
+void __init early_iounmap(void *addr, unsigned long size)
 {
 	unsigned long virt_addr;
 	unsigned long offset;
@@ -350,7 +350,7 @@ void __init bt_iounmap(void *addr, unsigned long size)
 
 	idx = FIX_BTMAP_BEGIN;
 	while (nrpages > 0) {
-		bt_clear_fixmap(idx);
+		early_clear_fixmap(idx);
 		--idx;
 		--nrpages;
 	}
diff --git a/include/asm-x86/dmi.h b/include/asm-x86/dmi.h
index 5008c365e6e4..1241e6ad1935 100644
--- a/include/asm-x86/dmi.h
+++ b/include/asm-x86/dmi.h
@@ -5,9 +5,6 @@
 
 #ifdef CONFIG_X86_32
 
-/* Use early IO mappings for DMI because it's initialized early */
-#define dmi_ioremap bt_ioremap
-#define dmi_iounmap bt_iounmap
 #define dmi_alloc alloc_bootmem
 
 #else /* CONFIG_X86_32 */
@@ -28,9 +25,9 @@ static inline void *dmi_alloc(unsigned len)
 	return dmi_alloc_data + idx;
 }
 
+#endif
+
 #define dmi_ioremap early_ioremap
 #define dmi_iounmap early_iounmap
 
 #endif
-
-#endif
diff --git a/include/asm-x86/efi.h b/include/asm-x86/efi.h
index 10fcf20bdc73..8380131ca542 100644
--- a/include/asm-x86/efi.h
+++ b/include/asm-x86/efi.h
@@ -33,9 +33,6 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...);
 #define efi_call_virt6(f, a1, a2, a3, a4, a5, a6)	\
 	efi_call_virt(f, a1, a2, a3, a4, a5, a6)
 
-#define efi_early_ioremap(addr, size)		bt_ioremap(addr, size)
-#define efi_early_iounmap(vaddr, size)		bt_iounmap(vaddr, size)
-
 #define efi_ioremap(addr, size)			ioremap(addr, size)
 
 #define end_pfn_map				max_low_pfn
@@ -91,13 +88,8 @@ extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3,
 	efi_call6((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
 		  (u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6))
 
-#define efi_early_ioremap(addr, size)		early_ioremap(addr, size)
-#define efi_early_iounmap(vaddr, size)		early_iounmap(vaddr, size)
-
 extern void *efi_ioremap(unsigned long offset, unsigned long size);
 
-extern int efi_time;
-
 #endif /* CONFIG_X86_32 */
 
 extern void efi_reserve_bootmem(void);
diff --git a/include/asm-x86/io_32.h b/include/asm-x86/io_32.h
index f7b733d9ace9..059a1fee4de3 100644
--- a/include/asm-x86/io_32.h
+++ b/include/asm-x86/io_32.h
@@ -135,20 +135,20 @@ static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
 extern void iounmap(volatile void __iomem *addr);
 
 /*
- * bt_ioremap() and bt_iounmap() are for temporary early boot-time
+ * early_ioremap() and early_iounmap() are for temporary early boot-time
  * mappings, before the real ioremap() is functional.
  * A boot-time mapping is currently limited to at most 16 pages.
  */
-extern void bt_ioremap_init(void);
-extern void bt_ioremap_clear(void);
-extern void bt_ioremap_reset(void);
-extern void *bt_ioremap(unsigned long offset, unsigned long size);
-extern void bt_iounmap(void *addr, unsigned long size);
+extern void early_ioremap_init(void);
+extern void early_ioremap_clear(void);
+extern void early_ioremap_reset(void);
+extern void *early_ioremap(unsigned long offset, unsigned long size);
+extern void early_iounmap(void *addr, unsigned long size);
 extern void __iomem *fix_ioremap(unsigned idx, unsigned long phys);
 
 /* Use early IO mappings for DMI because it's initialized early */
-#define dmi_ioremap bt_ioremap
-#define dmi_iounmap bt_iounmap
+#define dmi_ioremap early_ioremap
+#define dmi_iounmap early_iounmap
 #define dmi_alloc alloc_bootmem
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From 64a8f852a20e90bf3018d3ace5b7f514f39db4cd Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:33:44 +0100
Subject: x86: early_ioremap_reset fix

This patch fixes a bug of early_ioremap_reset.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap_32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 43b5e9fd6370..bfd7b8b2fe60 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -247,7 +247,7 @@ void __init early_ioremap_reset(void)
 	unsigned long *pte, phys, addr;
 
 	after_paging_init = 1;
-	for (idx = FIX_BTMAP_BEGIN; idx <= FIX_BTMAP_END; idx--) {
+	for (idx = FIX_BTMAP_BEGIN; idx >= FIX_BTMAP_END; idx--) {
 		addr = fix_to_virt(idx);
 		pte = early_ioremap_pte(addr);
 		if (!*pte & _PAGE_PRESENT) {
-- 
cgit v1.2.3-59-g8ed1b


From 1b42f51630c7eebce6fb780b480731eb81afd325 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:45 +0100
Subject: x86: enhance early_ioremap()

 - allow nesting of up to 4 levels

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap_32.c    | 36 ++++++++++++++++++++++++++----------
 include/asm-x86/fixmap_32.h |  9 +++++----
 2 files changed, 31 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index bfd7b8b2fe60..63f76ecae44c 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -291,23 +291,28 @@ static inline void __init early_clear_fixmap(enum fixed_addresses idx)
 		__early_set_fixmap(idx, 0, __pgprot(0));
 }
 
+
+int __initdata early_ioremap_nested;
+
 void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 {
 	unsigned long offset, last_addr;
-	unsigned int nrpages;
-	enum fixed_addresses idx;
+	unsigned int nrpages, nesting;
+	enum fixed_addresses idx0, idx;
+
+	WARN_ON(system_state != SYSTEM_BOOTING);
+
+	nesting = early_ioremap_nested;
 
 	/* Don't allow wraparound or zero size */
 	last_addr = phys_addr + size - 1;
 	if (!size || last_addr < phys_addr)
 		return NULL;
 
-	/*
-	 * Don't remap the low PCI/ISA area, it's always mapped..
-	 */
-	if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
-		return phys_to_virt(phys_addr);
+	if (nesting >= FIX_BTMAPS_NESTING)
+		return NULL;
 
+	early_ioremap_nested++;
 	/*
 	 * Mappings have to be page-aligned
 	 */
@@ -325,14 +330,16 @@ void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 	/*
 	 * Ok, go for it..
 	 */
-	idx = FIX_BTMAP_BEGIN;
+	idx0 = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*nesting;
+	idx = idx0;
 	while (nrpages > 0) {
 		early_set_fixmap(idx, phys_addr);
 		phys_addr += PAGE_SIZE;
 		--idx;
 		--nrpages;
 	}
-	return (void*) (offset + fix_to_virt(FIX_BTMAP_BEGIN));
+
+	return (void*) (offset + fix_to_virt(idx0));
 }
 
 void __init early_iounmap(void *addr, unsigned long size)
@@ -341,17 +348,26 @@ void __init early_iounmap(void *addr, unsigned long size)
 	unsigned long offset;
 	unsigned int nrpages;
 	enum fixed_addresses idx;
+	unsigned int nesting;
+
+	nesting = --early_ioremap_nested;
 
 	virt_addr = (unsigned long)addr;
 	if (virt_addr < fix_to_virt(FIX_BTMAP_BEGIN))
 		return;
+
 	offset = virt_addr & ~PAGE_MASK;
 	nrpages = PAGE_ALIGN(offset + size - 1) >> PAGE_SHIFT;
 
-	idx = FIX_BTMAP_BEGIN;
+	idx = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*nesting;
 	while (nrpages > 0) {
 		early_clear_fixmap(idx);
 		--idx;
 		--nrpages;
 	}
 }
+
+void __this_fixmap_does_not_exist(void)
+{
+	WARN_ON(1);
+}
diff --git a/include/asm-x86/fixmap_32.h b/include/asm-x86/fixmap_32.h
index 249e753ac805..0e990218a09c 100644
--- a/include/asm-x86/fixmap_32.h
+++ b/include/asm-x86/fixmap_32.h
@@ -65,7 +65,7 @@ enum fixed_addresses {
 #endif
 #ifdef CONFIG_X86_VISWS_APIC
 	FIX_CO_CPU,	/* Cobalt timer */
-	FIX_CO_APIC,	/* Cobalt APIC Redirection Table */ 
+	FIX_CO_APIC,	/* Cobalt APIC Redirection Table */
 	FIX_LI_PCIA,	/* Lithium PCI Bridge A */
 	FIX_LI_PCIB,	/* Lithium PCI Bridge B */
 #endif
@@ -74,7 +74,7 @@ enum fixed_addresses {
 #endif
 #ifdef CONFIG_X86_CYCLONE_TIMER
 	FIX_CYCLONE_TIMER, /*cyclone timer register*/
-#endif 
+#endif
 #ifdef CONFIG_HIGHMEM
 	FIX_KMAP_BEGIN,	/* reserved pte's for temporary kernel mappings */
 	FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
@@ -91,9 +91,10 @@ enum fixed_addresses {
 #endif
 	__end_of_permanent_fixed_addresses,
 	/* temporary boot-time mappings, used before ioremap() is functional */
-#define NR_FIX_BTMAPS	16
+#define NR_FIX_BTMAPS		16
+#define FIX_BTMAPS_NESTING	4
 	FIX_BTMAP_END = __end_of_permanent_fixed_addresses,
-	FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS - 1,
+	FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS*FIX_BTMAPS_NESTING - 1,
 	FIX_WP_TEST,
 	__end_of_fixed_addresses
 };
-- 
cgit v1.2.3-59-g8ed1b


From bd796ed0232a036f5ab14ac68d0a05f791ebcc3b Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:45 +0100
Subject: x86: add debug warnings to early_ioremap()

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap_32.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 63f76ecae44c..4bcd5e065df4 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -306,12 +306,15 @@ void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 
 	/* Don't allow wraparound or zero size */
 	last_addr = phys_addr + size - 1;
-	if (!size || last_addr < phys_addr)
+	if (!size || last_addr < phys_addr) {
+		WARN_ON(1);
 		return NULL;
+	}
 
-	if (nesting >= FIX_BTMAPS_NESTING)
+	if (nesting >= FIX_BTMAPS_NESTING) {
+		WARN_ON(1);
 		return NULL;
-
+	}
 	early_ioremap_nested++;
 	/*
 	 * Mappings have to be page-aligned
@@ -324,8 +327,10 @@ void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 	 * Mappings have to fit in the FIX_BTMAP area.
 	 */
 	nrpages = size >> PAGE_SHIFT;
-	if (nrpages > NR_FIX_BTMAPS)
+	if (nrpages > NR_FIX_BTMAPS) {
+		WARN_ON(1);
 		return NULL;
+	}
 
 	/*
 	 * Ok, go for it..
@@ -351,11 +356,13 @@ void __init early_iounmap(void *addr, unsigned long size)
 	unsigned int nesting;
 
 	nesting = --early_ioremap_nested;
+	WARN_ON(nesting < 0);
 
 	virt_addr = (unsigned long)addr;
-	if (virt_addr < fix_to_virt(FIX_BTMAP_BEGIN))
+	if (virt_addr < fix_to_virt(FIX_BTMAP_BEGIN)) {
+		WARN_ON(1);
 		return;
-
+	}
 	offset = virt_addr & ~PAGE_MASK;
 	nrpages = PAGE_ALIGN(offset + size - 1) >> PAGE_SHIFT;
 
-- 
cgit v1.2.3-59-g8ed1b


From d18d6d65efc2f5a3ff9a41528fbcb716b2e32615 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:45 +0100
Subject: x86: early_ioremap(), debugging

add early_ioremap() debug printouts via the early_ioremap_debug
boot option.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap_32.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 4bcd5e065df4..30855c44818d 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -208,6 +208,17 @@ void iounmap(volatile void __iomem *addr)
 }
 EXPORT_SYMBOL(iounmap);
 
+
+int __initdata early_ioremap_debug;
+
+static int __init early_ioremap_debug_setup(char *str)
+{
+	early_ioremap_debug = 1;
+
+	return 1;
+}
+__setup("early_ioremap_debug", early_ioremap_debug_setup);
+
 static __initdata int after_paging_init;
 static __initdata unsigned long bm_pte[1024]
 				__attribute__((aligned(PAGE_SIZE)));
@@ -226,6 +237,9 @@ void __init early_ioremap_init(void)
 {
 	unsigned long *pgd;
 
+	if (early_ioremap_debug)
+		printk("early_ioremap_init()\n");
+
 	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
 	*pgd = __pa(bm_pte) | _PAGE_TABLE;
 	memset(bm_pte, 0, sizeof(bm_pte));
@@ -236,6 +250,9 @@ void __init early_ioremap_clear(void)
 {
 	unsigned long *pgd;
 
+	if (early_ioremap_debug)
+		printk("early_ioremap_clear()\n");
+
 	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
 	*pgd = 0;
 	__flush_tlb_all();
@@ -303,6 +320,11 @@ void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 	WARN_ON(system_state != SYSTEM_BOOTING);
 
 	nesting = early_ioremap_nested;
+	if (early_ioremap_debug) {
+		printk("early_ioremap(%08lx, %08lx) [%d] => ",
+				phys_addr, size, nesting);
+		dump_stack();
+	}
 
 	/* Don't allow wraparound or zero size */
 	last_addr = phys_addr + size - 1;
@@ -343,6 +365,8 @@ void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 		--idx;
 		--nrpages;
 	}
+	if (early_ioremap_debug)
+		printk(KERN_CONT "%08lx + %08lx\n", offset, fix_to_virt(idx0));
 
 	return (void*) (offset + fix_to_virt(idx0));
 }
@@ -358,6 +382,11 @@ void __init early_iounmap(void *addr, unsigned long size)
 	nesting = --early_ioremap_nested;
 	WARN_ON(nesting < 0);
 
+	if (early_ioremap_debug) {
+		printk("early_iounmap(%p, %08lx) [%d]\n", addr, size, nesting);
+		dump_stack();
+	}
+
 	virt_addr = (unsigned long)addr;
 	if (virt_addr < fix_to_virt(FIX_BTMAP_BEGIN)) {
 		WARN_ON(1);
-- 
cgit v1.2.3-59-g8ed1b


From 793b24a2dd0d695c748efba7b2295e7f9fdd3139 Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:33:45 +0100
Subject: x86: make early_ioremap_debug early_param

This patch makes "early_ioremap_debug" a early parameter, because
"early_ioreamp/early_iounmap" is only used during early boot stage.

Signed-off-by: Huang Ying <ying.huang@intel.com>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap_32.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 30855c44818d..7f7daf50efed 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -215,9 +215,9 @@ static int __init early_ioremap_debug_setup(char *str)
 {
 	early_ioremap_debug = 1;
 
-	return 1;
+	return 0;
 }
-__setup("early_ioremap_debug", early_ioremap_debug_setup);
+early_param("early_ioremap_debug", early_ioremap_debug_setup);
 
 static __initdata int after_paging_init;
 static __initdata unsigned long bm_pte[1024]
-- 
cgit v1.2.3-59-g8ed1b


From d690b2afd5a7a02816386aa704c8c0b1aca8d2de Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:47 +0100
Subject: x86: add early_ioremap() leak detection

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap_32.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 7f7daf50efed..b743de841f68 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -311,6 +311,22 @@ static inline void __init early_clear_fixmap(enum fixed_addresses idx)
 
 int __initdata early_ioremap_nested;
 
+static int __init check_early_ioremap_leak(void)
+{
+	if (!early_ioremap_nested)
+		return 0;
+
+	printk(KERN_WARNING
+		"Debug warning: early ioremap leak of %d areas detected.\n",
+			early_ioremap_nested);
+	printk(KERN_WARNING
+		"please boot with early_ioremap_debug and report the dmesg.\n");
+	WARN_ON(1);
+
+	return 1;
+}
+late_initcall(check_early_ioremap_leak);
+
 void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 {
 	unsigned long offset, last_addr;
-- 
cgit v1.2.3-59-g8ed1b


From 927222b102186a6cc3e43e25062fcd18c800435e Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:49 +0100
Subject: x86: fix EISA ioremap

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/traps_32.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 8534cb53ff60..3cf72977d012 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -1142,11 +1142,11 @@ void __init trap_init(void)
 	int i;
 
 #ifdef CONFIG_EISA
-	void __iomem *p = ioremap(0x0FFFD9, 4);
+	void __iomem *p = early_ioremap(0x0FFFD9, 4);
 	if (readl(p) == 'E'+('I'<<8)+('S'<<16)+('A'<<24)) {
 		EISA_bus = 1;
 	}
-	iounmap(p);
+	early_iounmap(p, 4);
 #endif
 
 #ifdef CONFIG_X86_LOCAL_APIC
-- 
cgit v1.2.3-59-g8ed1b


From 0e3a95492989e452a33e5df9b51365da574b854d Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:49 +0100
Subject: x86: early_ioremap_init(), enhance warnings

enhance the debug warning in early_ioremap_init().

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap_32.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index b743de841f68..f8e6c4709cc2 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -243,7 +243,22 @@ void __init early_ioremap_init(void)
 	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
 	*pgd = __pa(bm_pte) | _PAGE_TABLE;
 	memset(bm_pte, 0, sizeof(bm_pte));
-	BUG_ON(pgd != early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
+	/*
+	 * The boot-ioremap range spans multiple pgds, for which
+	 * we are not prepared:
+	 */
+	if (pgd != early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END))) {
+		WARN_ON(1);
+		printk("pgd %p != %p\n",
+			pgd, early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
+		printk("fix_to_virt(FIX_BTMAP_BEGIN): %08lx\n",
+			fix_to_virt(FIX_BTMAP_BEGIN));
+		printk("fix_to_virt(FIX_BTMAP_END):   %08lx\n",
+			fix_to_virt(FIX_BTMAP_END));
+
+		printk("FIX_BTMAP_END:       %d\n", FIX_BTMAP_END);
+		printk("FIX_BTMAP_BEGIN:     %d\n", FIX_BTMAP_BEGIN);
+	}
 }
 
 void __init early_ioremap_clear(void)
-- 
cgit v1.2.3-59-g8ed1b


From 5b016432a768d94c707aee02a202c95d163f27c4 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:50 +0100
Subject: x86: cpa: use wbinvd() macro instead of inline assembly in 64bit
 c_p_a()

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 59cd066f6741..b21a874c2dd3 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -86,7 +86,7 @@ static void flush_kernel_map(void *arg)
 	   much cheaper than WBINVD. */
 	/* clflush is still broken. Disable for now. */
 	if (1 || !cpu_has_clflush) {
-		asm volatile("wbinvd" ::: "memory");
+		wbinvd();
 	} else {
 		list_for_each_entry(pg, l, lru) {
 			void *addr = page_address(pg);
-- 
cgit v1.2.3-59-g8ed1b


From a3ae91b0a02a4ca0088f30d572c848f5d522573a Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:50 +0100
Subject: x86: cpa: remove unnecessary masking of address

virt_to_page does not care about the bits below the page granuality.
So don't mask them.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index b21a874c2dd3..4d172881af70 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -148,7 +148,7 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
 	if (!kpte)
 		return 0;
 
-	kpte_page = virt_to_page(((unsigned long)kpte) & PAGE_MASK);
+	kpte_page = virt_to_page(kpte);
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
 	if (pgprot_val(prot) != pgprot_val(ref_prot)) {
-- 
cgit v1.2.3-59-g8ed1b


From c93c82bbea20bef627dbe8e34a4bc8e526217104 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:50 +0100
Subject: x86: shrink __PAGE_KERNEL/__PAGE_KERNEL_EXEC on non PAE kernels

No need to make it 64bit there.

Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_32.c     | 4 ++--
 include/asm-x86/pgtable.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index e00c1d7128b1..08ba3a14c72c 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -332,9 +332,9 @@ static void __init set_highmem_pages_init(int bad_ppro)
 #define set_highmem_pages_init(bad_ppro) do { } while (0)
 #endif /* CONFIG_HIGHMEM */
 
-unsigned long long __PAGE_KERNEL = _PAGE_KERNEL;
+pteval_t __PAGE_KERNEL = _PAGE_KERNEL;
 EXPORT_SYMBOL(__PAGE_KERNEL);
-unsigned long long __PAGE_KERNEL_EXEC = _PAGE_KERNEL_EXEC;
+pteval_t __PAGE_KERNEL_EXEC = _PAGE_KERNEL_EXEC;
 
 #ifdef CONFIG_NUMA
 extern void __init remap_numa_kva(void);
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 18a5f9e32834..0c3ecca0f79c 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -69,7 +69,7 @@
 #define _PAGE_KERNEL (_PAGE_KERNEL_EXEC | _PAGE_NX)
 
 #ifndef __ASSEMBLY__
-extern unsigned long long __PAGE_KERNEL, __PAGE_KERNEL_EXEC;
+extern pteval_t __PAGE_KERNEL, __PAGE_KERNEL_EXEC;
 #endif	/* __ASSEMBLY__ */
 #else
 #define __PAGE_KERNEL_EXEC						\
-- 
cgit v1.2.3-59-g8ed1b


From 6ba9b7d8f0fe786954015ce5c0ef1837d5df56b7 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:52 +0100
Subject: x86: fix c_p_a() boot crash

fix:

> hm, i just found a failing 64-bit .config while testing your CPA
> patchset:
>
>  [    1.916541] CPA mapping 4k 0 large 2048 gb 0 x 0[0-0] miss 0
>  [    1.919874] Unable to handle kernel paging request at 000000000335aea8 RIP:
>  [    1.919874]  [<ffffffff8021d2d3>] change_page_attr+0x3/0x61
>  [    1.919874] PGD 0
>  [    1.919874] Oops: 0000 [1]
>  [    1.919874] CPU 0

This handles addresses which don't have a mem_map entry.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr-test.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index c58fab061762..91e05a26004d 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -177,7 +177,7 @@ static __init int exercise_pageattr(void)
 			continue;
 		}
 
-		err = change_page_attr(virt_to_page(addr[i]), len[i],
+		err = change_page_attr_addr(addr[i], len[i],
 			    pte_pgprot(pte_clrhuge(pte_clrglobal(pte0))));
 		if (err < 0) {
 			printk(KERN_ERR "CPA %d failed %d\n", i, err);
@@ -212,7 +212,7 @@ static __init int exercise_pageattr(void)
 			failed++;
 			continue;
 		}
-		err = change_page_attr(virt_to_page(addr[i]), len[i],
+		err = change_page_attr_addr(addr[i], len[i],
 					  pte_pgprot(pte_mkglobal(*pte)));
 		if (err < 0) {
 			printk(KERN_ERR "CPA reverting failed: %d\n", err);
-- 
cgit v1.2.3-59-g8ed1b


From 3c868823413d76bdd80c643603be8ab09dcb4d65 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:52 +0100
Subject: x86: c_p_a() fix: reorder TLB / cache flushes to follow Intel
 recommendation

Intel recommends to first flush the TLBs and then the caches
on caching attribute changes. c_p_a() previously did it the
other way round. Reorder that.

The procedure is still not fully compliant to the Intel documentation
because Intel recommends a all CPU synchronization step between
the TLB flushes and the cache flushes.

However on all new Intel CPUs this is now meaningless anyways
because they support Self-Snoop and can skip the cache flush
step anyway.

[ mingo@elte.hu: decoupled from clflush and ported it to x86.git ]

Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_32.c | 12 ++++++------
 arch/x86/mm/pageattr_64.c |  3 ++-
 2 files changed, 8 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index 523fd5b37df9..5cb5c7101f41 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -87,6 +87,12 @@ static void flush_kernel_map(void *arg)
 	struct list_head *lh = (struct list_head *)arg;
 	struct page *p;
 
+	/*
+	 * Flush all to work around Errata in early athlons regarding
+	 * large page flushing.
+	 */
+	__flush_tlb_all();
+
 	/* High level code is not ready for clflush yet */
 	if (0 && cpu_has_clflush) {
 		list_for_each_entry(p, lh, lru)
@@ -95,12 +101,6 @@ static void flush_kernel_map(void *arg)
 		if (boot_cpu_data.x86_model >= 4)
 			wbinvd();
 	}
-
-	/*
-	 * Flush all to work around Errata in early athlons regarding
-	 * large page flushing.
-	 */
-	__flush_tlb_all();
 }
 
 static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 4d172881af70..3ccdb1401e67 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -82,6 +82,8 @@ static void flush_kernel_map(void *arg)
 	struct list_head *l = (struct list_head *)arg;
 	struct page *pg;
 
+	__flush_tlb_all();
+
 	/* When clflush is available always use it because it is
 	   much cheaper than WBINVD. */
 	/* clflush is still broken. Disable for now. */
@@ -94,7 +96,6 @@ static void flush_kernel_map(void *arg)
 			clflush_cache_range(addr, PAGE_SIZE);
 		}
 	}
-	__flush_tlb_all();
 }
 
 static inline void flush_map(struct list_head *l)
-- 
cgit v1.2.3-59-g8ed1b


From 895bdc29956e5c9e9e101b2b1c2f0ed34130f945 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:52 +0100
Subject: x86: c_p_a() make it more robust against use of PAT bits

Use the page table level instead of the PSE bit to check if the PTE
is for a 4K page or not. This makes the code more robust when the PAT
bit is changed because the PAT bit on 4K pages is in the same position
as the PSE bit.

Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_32.c | 4 ++--
 arch/x86/mm/pageattr_64.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index 5cb5c7101f41..66688a630839 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -172,7 +172,7 @@ static int __change_page_attr(struct page *page, pgprot_t prot)
 	BUG_ON(PageCompound(kpte_page));
 
 	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL)) {
-		if (!pte_huge(*kpte)) {
+		if (level == 3) {
 			set_pte_atomic(kpte, mk_pte(page, prot));
 		} else {
 			struct page *split;
@@ -190,7 +190,7 @@ static int __change_page_attr(struct page *page, pgprot_t prot)
 		}
 		page_private(kpte_page)++;
 	} else {
-		if (!pte_huge(*kpte)) {
+		if (level == 3) {
 			set_pte_atomic(kpte, mk_pte(page, PAGE_KERNEL));
 			BUG_ON(page_private(kpte_page) == 0);
 			page_private(kpte_page)--;
diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 3ccdb1401e67..73dbbb4048e6 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -153,7 +153,7 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
 	if (pgprot_val(prot) != pgprot_val(ref_prot)) {
-		if (!pte_huge(*kpte)) {
+		if (level == 4) {
 			set_pte(kpte, pfn_pte(pfn, prot));
 		} else {
 			/*
@@ -172,7 +172,7 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
 		}
 		page_private(kpte_page)++;
 	} else {
-		if (!pte_huge(*kpte)) {
+		if (level == 4) {
 			set_pte(kpte, pfn_pte(pfn, ref_prot));
 			BUG_ON(page_private(kpte_page) == 0);
 			page_private(kpte_page)--;
-- 
cgit v1.2.3-59-g8ed1b


From 934d15854d04e8ca2495d8f5698164df990d5d66 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:53 +0100
Subject: x86: remove set_kernel_exec()

The SMP trampoline always runs in real mode, so making it executable
in the page tables doesn't make much sense because it executes
before page tables are set up. That was the only user of
set_kernel_exec(). Remove set_kernel_exec().

Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/smpboot_32.c | 11 -----------
 arch/x86/mm/init_32.c        | 29 -----------------------------
 include/asm-x86/pgtable_32.h | 12 ------------
 3 files changed, 52 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 7a62dced61ca..5787a0c3e296 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -107,7 +107,6 @@ u8 apicid_2_node[MAX_APICID];
 extern const unsigned char trampoline_data [];
 extern const unsigned char trampoline_end  [];
 static unsigned char *trampoline_base;
-static int trampoline_exec;
 
 static void map_cpu_to_logical_apicid(void);
 
@@ -139,10 +138,6 @@ void __init smp_alloc_memory(void)
 	 */
 	if (__pa(trampoline_base) >= 0x9F000)
 		BUG();
-	/*
-	 * Make the SMP trampoline executable:
-	 */
-	trampoline_exec = set_kernel_exec((unsigned long)trampoline_base, 1);
 }
 
 /*
@@ -1290,12 +1285,6 @@ void __init native_smp_cpus_done(unsigned int max_cpus)
 	setup_ioapic_dest();
 #endif
 	zap_low_mappings();
-#ifndef CONFIG_HOTPLUG_CPU
-	/*
-	 * Disable executability of the SMP trampoline:
-	 */
-	set_kernel_exec((unsigned long)trampoline_base, trampoline_exec);
-#endif
 }
 
 void __init smp_intr_init(void)
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 08ba3a14c72c..016c8ccd1d8d 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -529,35 +529,6 @@ static void __init set_nx(void)
 	}
 }
 
-/*
- * Enables/disables executability of a given kernel page and
- * returns the previous setting.
- */
-int __init set_kernel_exec(unsigned long vaddr, int enable)
-{
-	pte_t *pte;
-	int ret = 1;
-	int level;
-
-	if (!nx_enabled)
-		goto out;
-
-	pte = lookup_address(vaddr, &level);
-	BUG_ON(!pte);
-
-	if (!pte_exec(*pte))
-		ret = 0;
-
-	if (enable)
-		pte->pte_high &= ~(1 << (_PAGE_BIT_NX - 32));
-	else
-		pte->pte_high |= 1 << (_PAGE_BIT_NX - 32);
-	pte_update_defer(&init_mm, vaddr, pte);
-	__flush_tlb_all();
-out:
-	return ret;
-}
-
 #endif
 
 /*
diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h
index 9381bd37b9b1..72eb06c2bac9 100644
--- a/include/asm-x86/pgtable_32.h
+++ b/include/asm-x86/pgtable_32.h
@@ -184,18 +184,6 @@ static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
  */
 extern pte_t *lookup_address(unsigned long address, int *level);
 
-/*
- * Make a given kernel text page executable/non-executable.
- * Returns the previous executability setting of that page (which
- * is used to restore the previous state). Used by the SMP bootup code.
- * NOTE: this is an __init function for security reasons.
- */
-#ifdef CONFIG_X86_PAE
- extern int set_kernel_exec(unsigned long vaddr, int enable);
-#else
- static inline int set_kernel_exec(unsigned long vaddr, int enable) { return 0;}
-#endif
-
 #if defined(CONFIG_HIGHPTE)
 #define pte_offset_map(dir, address) \
 	((pte_t *)kmap_atomic_pte(pmd_page(*(dir)),KM_PTE0) + pte_index(address))
-- 
cgit v1.2.3-59-g8ed1b


From 1a2b441231ddc12b785940000320894bfa02bd82 Mon Sep 17 00:00:00 2001
From: Andi Kleen <andi@firstfloor.org>
Date: Wed, 30 Jan 2008 13:33:54 +0100
Subject: x86: fix early_ioremap() on 64-bit

Fix early_ioremap() on x86-64

I had ACPI failures on several machines since a few days. Symptom
was NUMA nodes not getting detected or worse cores not getting detected.
They all came from ACPI not being able to read various of its tables. I finally
bisected it down to Jeremy's "put _PAGE_GLOBAL into PAGE_KERNEL" change.
With that the fix was fairly obvious. The problem was that early_ioremap()
didn't use a "_all" flush that would affect the global PTEs too. So
with global bits getting used everywhere now an early_ioremap would
not actually flush a mapping if something else was mapped previously
on that slot (which can happen with early_iounmap inbetween)

This patch changes all flushes in init_64.c to be __flush_tlb_all()
and fixes the problem here.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_64.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 0fd9d7f77786..c250580a9432 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -228,7 +228,7 @@ __meminit void *early_ioremap(unsigned long addr, unsigned long size)
 		addr &= PMD_MASK;
 		for (i = 0; i < pmds; i++, addr += PMD_SIZE)
 			set_pmd(pmd+i, __pmd(addr | __PAGE_KERNEL_LARGE_EXEC));
-		__flush_tlb();
+		__flush_tlb_all();
 		return (void *)vaddr;
 	next:
 		;
@@ -249,7 +249,7 @@ __meminit void early_iounmap(void *addr, unsigned long size)
 	pmd = level2_kernel_pgt + pmd_index(vaddr);
 	for (i = 0; i < pmds; i++)
 		pmd_clear(pmd + i);
-	__flush_tlb();
+	__flush_tlb_all();
 }
 
 static void __meminit
@@ -317,7 +317,7 @@ static void __meminit phys_pud_init(pud_t *pud_page, unsigned long addr, unsigne
 		spin_unlock(&init_mm.page_table_lock);
 		unmap_low_page(pmd);
 	}
-	__flush_tlb();
+	__flush_tlb_all();
 } 
 
 static void __init find_early_table_space(unsigned long end)
-- 
cgit v1.2.3-59-g8ed1b


From cd58289667293593b04fd315ec7f2f37589134cb Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:54 +0100
Subject: x86: fix more non-global TLB flushes

fix more __flush_tlb() instances, out of caution.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/head64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 58438bafedca..a317336cdeaa 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -27,7 +27,7 @@ static void __init zap_identity_mappings(void)
 {
 	pgd_t *pgd = pgd_offset_k(0UL);
 	pgd_clear(pgd);
-	__flush_tlb();
+	__flush_tlb_all();
 }
 
 /* Don't add a printk in there. printk relies on the PDA which is not initialized 
-- 
cgit v1.2.3-59-g8ed1b


From a2172e2586f6662af996e47f417bb718c37cf8d2 Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:33:55 +0100
Subject: x86: fix some bugs about EFI runtime code mapping

This patch fixes some bugs of making EFI runtime code executable.

- Use change_page_attr in i386 too. Because the runtime code may be
  mapped not through ioremap.

- If there is no _PAGE_NX in __supported_pte_mask, the change_page_attr
  is not called.

- Make efi_ioremap map pages as PAGE_KERNEL_EXEC_NOCACHE, because EFI runtime
  code may be mapped through efi_ioremap.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/efi.c    | 35 ++++++++++++++++++++++++++++++-----
 arch/x86/kernel/efi_64.c | 26 ++++++--------------------
 include/asm-x86/efi.h    |  1 -
 3 files changed, 36 insertions(+), 26 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index 5d492f99d967..834ecfb41e97 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -40,6 +40,8 @@
 #include <asm/setup.h>
 #include <asm/efi.h>
 #include <asm/time.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
 
 #define EFI_DEBUG	1
 #define PFX 		"EFI: "
@@ -379,6 +381,32 @@ void __init efi_init(void)
 #endif
 }
 
+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
+static void __init runtime_code_page_mkexec(void)
+{
+	efi_memory_desc_t *md;
+	unsigned long end;
+	void *p;
+
+	if (!(__supported_pte_mask & _PAGE_NX))
+		return;
+
+	/* Make EFI runtime service code area executable */
+	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
+		md = p;
+		end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
+		if (md->type == EFI_RUNTIME_SERVICES_CODE &&
+		    (end >> PAGE_SHIFT) <= end_pfn_map)
+			change_page_attr_addr(md->virt_addr,
+					      md->num_pages,
+					      PAGE_KERNEL_EXEC_NOCACHE);
+	}
+	__flush_tlb_all();
+}
+#else
+static inline void __init runtime_code_page_mkexec(void) { }
+#endif
+
 /*
  * This function will switch the EFI runtime services to virtual mode.
  * Essentially, look through the EFI memmap and map every region that
@@ -399,9 +427,9 @@ void __init efi_enter_virtual_mode(void)
 		md = p;
 		if (!(md->attribute & EFI_MEMORY_RUNTIME))
 			continue;
+		end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
 		if ((md->attribute & EFI_MEMORY_WB) &&
-		    (((md->phys_addr + (md->num_pages<<EFI_PAGE_SHIFT)) >>
-		      PAGE_SHIFT) < end_pfn_map))
+		    ((end >> PAGE_SHIFT) <= end_pfn_map))
 			md->virt_addr = (unsigned long)__va(md->phys_addr);
 		else
 			md->virt_addr = (unsigned long)
@@ -410,7 +438,6 @@ void __init efi_enter_virtual_mode(void)
 		if (!md->virt_addr)
 			printk(KERN_ERR PFX "ioremap of 0x%llX failed!\n",
 			       (unsigned long long)md->phys_addr);
-		end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
 		if ((md->phys_addr <= (unsigned long)efi_phys.systab) &&
 		    ((unsigned long)efi_phys.systab < end))
 			efi.systab = (efi_system_table_t *)(unsigned long)
@@ -448,9 +475,7 @@ void __init efi_enter_virtual_mode(void)
 	efi.get_next_high_mono_count = virt_efi_get_next_high_mono_count;
 	efi.reset_system = virt_efi_reset_system;
 	efi.set_virtual_address_map = virt_efi_set_virtual_address_map;
-#ifdef CONFIG_X86_64
 	runtime_code_page_mkexec();
-#endif
 }
 
 /*
diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c
index 1f8bbd9644d7..9f8a75594398 100644
--- a/arch/x86/kernel/efi_64.c
+++ b/arch/x86/kernel/efi_64.c
@@ -33,7 +33,6 @@
 #include <asm/e820.h>
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
-#include <asm/cacheflush.h>
 #include <asm/proto.h>
 #include <asm/efi.h>
 
@@ -55,7 +54,7 @@ static void __init early_mapping_set_exec(unsigned long start,
 		else
 			set_pte(kpte, __pte((pte_val(*kpte) | _PAGE_NX) & \
 					    __supported_pte_mask));
-		if (pte_huge(*kpte))
+		if (level == 4)
 			start = (start + PMD_SIZE) & PMD_MASK;
 		else
 			start = (start + PAGE_SIZE) & PAGE_MASK;
@@ -67,6 +66,9 @@ static void __init early_runtime_code_mapping_set_exec(int executable)
 	efi_memory_desc_t *md;
 	void *p;
 
+	if (!(__supported_pte_mask & _PAGE_NX))
+		return;
+
 	/* Make EFI runtime service code area executable */
 	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
 		md = p;
@@ -116,22 +118,6 @@ void __init efi_reserve_bootmem(void)
 				memmap.nr_map * memmap.desc_size);
 }
 
-void __init runtime_code_page_mkexec(void)
-{
-	efi_memory_desc_t *md;
-	void *p;
-
-	/* Make EFI runtime service code area executable */
-	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
-		md = p;
-		if (md->type == EFI_RUNTIME_SERVICES_CODE)
-			change_page_attr_addr(md->virt_addr,
-					      md->num_pages,
-					      PAGE_KERNEL_EXEC);
-	}
-	__flush_tlb_all();
-}
-
 void __iomem * __init efi_ioremap(unsigned long offset,
 				  unsigned long size)
 {
@@ -146,8 +132,8 @@ void __iomem * __init efi_ioremap(unsigned long offset,
 		return NULL;
 
 	for (i = 0; i < pages; i++) {
-		set_fixmap_nocache(FIX_EFI_IO_MAP_FIRST_PAGE - pages_mapped,
-				   offset);
+		__set_fixmap(FIX_EFI_IO_MAP_FIRST_PAGE - pages_mapped,
+			     offset, PAGE_KERNEL_EXEC_NOCACHE);
 		offset += PAGE_SIZE;
 		pages_mapped++;
 	}
diff --git a/include/asm-x86/efi.h b/include/asm-x86/efi.h
index 8380131ca542..9e08ae84795d 100644
--- a/include/asm-x86/efi.h
+++ b/include/asm-x86/efi.h
@@ -95,6 +95,5 @@ extern void *efi_ioremap(unsigned long offset, unsigned long size);
 extern void efi_reserve_bootmem(void);
 extern void efi_call_phys_prelog(void);
 extern void efi_call_phys_epilog(void);
-extern void runtime_code_page_mkexec(void);
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 78c94abaea55df7003f3ad0e5b6c78ee1cc860bb Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:55 +0100
Subject: x86: simplify the 32-bit cpa code

simplify the 32-bit cpa code.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_32.c | 179 +++++++++++++++-------------------------------
 1 file changed, 56 insertions(+), 123 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index 66688a630839..570a37bf1401 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -15,9 +15,6 @@
 #include <asm/uaccess.h>
 #include <asm/pgalloc.h>
 
-static DEFINE_SPINLOCK(cpa_lock);
-static struct list_head df_list = LIST_HEAD_INIT(df_list);
-
 pte_t *lookup_address(unsigned long address, int *level)
 {
 	pgd_t *pgd = pgd_offset_k(address);
@@ -48,9 +45,7 @@ split_large_page(unsigned long address, pgprot_t prot, pgprot_t ref_prot)
 	pte_t *pbase;
 	int i;
 
-	spin_unlock_irq(&cpa_lock);
 	base = alloc_pages(GFP_KERNEL, 0);
-	spin_lock_irq(&cpa_lock);
 	if (!base)
 		return NULL;
 
@@ -58,9 +53,6 @@ split_large_page(unsigned long address, pgprot_t prot, pgprot_t ref_prot)
 	 * page_private is used to track the number of entries in
 	 * the page table page that have non standard attributes.
 	 */
-	SetPagePrivate(base);
-	page_private(base) = 0;
-
 	address = __pa(address);
 	addr = address & LARGE_PAGE_MASK;
 	pbase = (pte_t *)page_address(base);
@@ -73,36 +65,6 @@ split_large_page(unsigned long address, pgprot_t prot, pgprot_t ref_prot)
 	return base;
 }
 
-static void cache_flush_page(struct page *p)
-{
-	void *addr = page_address(p);
-	int i;
-
-	for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
-		clflush(addr + i);
-}
-
-static void flush_kernel_map(void *arg)
-{
-	struct list_head *lh = (struct list_head *)arg;
-	struct page *p;
-
-	/*
-	 * Flush all to work around Errata in early athlons regarding
-	 * large page flushing.
-	 */
-	__flush_tlb_all();
-
-	/* High level code is not ready for clflush yet */
-	if (0 && cpu_has_clflush) {
-		list_for_each_entry(p, lh, lru)
-			cache_flush_page(p);
-	} else {
-		if (boot_cpu_data.x86_model >= 4)
-			wbinvd();
-	}
-}
-
 static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 {
 	unsigned long flags;
@@ -127,36 +89,12 @@ static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 	spin_unlock_irqrestore(&pgd_lock, flags);
 }
 
-/*
- * No more special protections in this 2/4MB area - revert to a large
- * page again.
- */
-static inline void revert_page(struct page *kpte_page, unsigned long address)
-{
-	pgprot_t ref_prot;
-	pte_t *linear;
-
-	ref_prot =
-	((address & LARGE_PAGE_MASK) < (unsigned long)&_etext)
-		? PAGE_KERNEL_LARGE_EXEC : PAGE_KERNEL_LARGE;
-
-	linear = (pte_t *)
-		pmd_offset(pud_offset(pgd_offset_k(address), address), address);
-	set_pmd_pte(linear,  address,
-		    pfn_pte((__pa(address) & LARGE_PAGE_MASK) >> PAGE_SHIFT,
-			    ref_prot));
-}
-
-static inline void save_page(struct page *kpte_page)
-{
-	if (!test_and_set_bit(PG_arch_1, &kpte_page->flags))
-		list_add(&kpte_page->lru, &df_list);
-}
-
 static int __change_page_attr(struct page *page, pgprot_t prot)
 {
+	pgprot_t ref_prot = PAGE_KERNEL;
 	struct page *kpte_page;
 	unsigned long address;
+	pgprot_t oldprot;
 	pte_t *kpte;
 	int level;
 
@@ -167,58 +105,41 @@ static int __change_page_attr(struct page *page, pgprot_t prot)
 	if (!kpte)
 		return -EINVAL;
 
+	oldprot = pte_pgprot(*kpte);
 	kpte_page = virt_to_page(kpte);
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
 
-	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL)) {
-		if (level == 3) {
-			set_pte_atomic(kpte, mk_pte(page, prot));
-		} else {
-			struct page *split;
-			pgprot_t ref_prot;
-
-			ref_prot =
-			((address & LARGE_PAGE_MASK) < (unsigned long)&_etext)
-				? PAGE_KERNEL_EXEC : PAGE_KERNEL;
-			split = split_large_page(address, prot, ref_prot);
-			if (!split)
-				return -ENOMEM;
-
-			set_pmd_pte(kpte, address, mk_pte(split, ref_prot));
-			kpte_page = split;
-		}
-		page_private(kpte_page)++;
-	} else {
-		if (level == 3) {
-			set_pte_atomic(kpte, mk_pte(page, PAGE_KERNEL));
-			BUG_ON(page_private(kpte_page) == 0);
-			page_private(kpte_page)--;
-		} else
-			BUG();
-	}
-
 	/*
-	 * If the pte was reserved, it means it was created at boot
-	 * time (not via split_large_page) and in turn we must not
-	 * replace it with a largepage.
+	 * Better fail early if someone sets the kernel text to NX.
+	 * Does not cover __inittext
 	 */
+	BUG_ON(address >= (unsigned long)&_text &&
+		address < (unsigned long)&_etext &&
+	       (pgprot_val(prot) & _PAGE_NX));
 
-	save_page(kpte_page);
-	if (!PageReserved(kpte_page)) {
-		if (cpu_has_pse && (page_private(kpte_page) == 0)) {
-			paravirt_release_pt(page_to_pfn(kpte_page));
-			revert_page(kpte_page, address);
-		}
+	if ((address & LARGE_PAGE_MASK) < (unsigned long)&_etext)
+		ref_prot = PAGE_KERNEL_EXEC;
+
+	ref_prot = canon_pgprot(ref_prot);
+	prot = canon_pgprot(prot);
+
+	if (level == 3) {
+		set_pte_atomic(kpte, mk_pte(page, prot));
+	} else {
+		struct page *split;
+		split = split_large_page(address, prot, ref_prot);
+		if (!split)
+			return -ENOMEM;
+
+		/*
+		 * There's a small window here to waste a bit of RAM:
+		 */
+		set_pmd_pte(kpte, address, mk_pte(split, ref_prot));
 	}
 	return 0;
 }
 
-static inline void flush_map(struct list_head *l)
-{
-	on_each_cpu(flush_kernel_map, l, 1, 1);
-}
-
 /*
  * Change the page attributes of an page in the linear mapping.
  *
@@ -234,40 +155,52 @@ static inline void flush_map(struct list_head *l)
  */
 int change_page_attr(struct page *page, int numpages, pgprot_t prot)
 {
-	unsigned long flags;
 	int err = 0, i;
 
-	spin_lock_irqsave(&cpa_lock, flags);
 	for (i = 0; i < numpages; i++, page++) {
 		err = __change_page_attr(page, prot);
 		if (err)
 			break;
 	}
-	spin_unlock_irqrestore(&cpa_lock, flags);
 
 	return err;
 }
 EXPORT_SYMBOL(change_page_attr);
 
-void global_flush_tlb(void)
+int change_page_attr_addr(unsigned long addr, int numpages, pgprot_t prot)
 {
-	struct page *pg, *next;
-	struct list_head l;
+	int i;
+	unsigned long pfn = (addr >> PAGE_SHIFT);
 
+	for (i = 0; i < numpages; i++) {
+		if (!pfn_valid(pfn + i)) {
+			break;
+		} else {
+			int level;
+			pte_t *pte = lookup_address(addr + i*PAGE_SIZE, &level);
+			BUG_ON(pte && !pte_none(*pte));
+		}
+	}
+	return change_page_attr(virt_to_page(addr), i, prot);
+}
+
+static void flush_kernel_map(void *arg)
+{
+	/*
+	 * Flush all to work around Errata in early athlons regarding
+	 * large page flushing.
+	 */
+	__flush_tlb_all();
+
+	if (boot_cpu_data.x86_model >= 4)
+		wbinvd();
+}
+
+void global_flush_tlb(void)
+{
 	BUG_ON(irqs_disabled());
 
-	spin_lock_irq(&cpa_lock);
-	list_replace_init(&df_list, &l);
-	spin_unlock_irq(&cpa_lock);
-	flush_map(&l);
-	list_for_each_entry_safe(pg, next, &l, lru) {
-		list_del(&pg->lru);
-		clear_bit(PG_arch_1, &pg->flags);
-		if (PageReserved(pg) || !cpu_has_pse || page_private(pg) != 0)
-			continue;
-		ClearPagePrivate(pg);
-		__free_page(pg);
-	}
+	on_each_cpu(flush_kernel_map, NULL, 1, 1);
 }
 EXPORT_SYMBOL(global_flush_tlb);
 
-- 
cgit v1.2.3-59-g8ed1b


From 97f99fedf27f337e2d3d95ca01e321beb26edc3d Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:55 +0100
Subject: x86: simplify 32-bit cpa largepage splitting

simplify 32-bit cpa largepage splitting: do a pure split and repeat
the pte lookup to get the new pte modified.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_32.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index 570a37bf1401..1011b21f8db0 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -38,7 +38,7 @@ pte_t *lookup_address(unsigned long address, int *level)
 }
 
 static struct page *
-split_large_page(unsigned long address, pgprot_t prot, pgprot_t ref_prot)
+split_large_page(unsigned long address, pgprot_t ref_prot)
 {
 	unsigned long addr;
 	struct page *base;
@@ -58,10 +58,9 @@ split_large_page(unsigned long address, pgprot_t prot, pgprot_t ref_prot)
 	pbase = (pte_t *)page_address(base);
 	paravirt_alloc_pt(&init_mm, page_to_pfn(base));
 
-	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) {
-		set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT,
-					   addr == address ? prot : ref_prot));
-	}
+	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
+		set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));
+
 	return base;
 }
 
@@ -101,6 +100,7 @@ static int __change_page_attr(struct page *page, pgprot_t prot)
 	BUG_ON(PageHighMem(page));
 	address = (unsigned long)page_address(page);
 
+repeat:
 	kpte = lookup_address(address, &level);
 	if (!kpte)
 		return -EINVAL;
@@ -128,7 +128,8 @@ static int __change_page_attr(struct page *page, pgprot_t prot)
 		set_pte_atomic(kpte, mk_pte(page, prot));
 	} else {
 		struct page *split;
-		split = split_large_page(address, prot, ref_prot);
+
+		split = split_large_page(address, ref_prot);
 		if (!split)
 			return -ENOMEM;
 
@@ -136,6 +137,7 @@ static int __change_page_attr(struct page *page, pgprot_t prot)
 		 * There's a small window here to waste a bit of RAM:
 		 */
 		set_pmd_pte(kpte, address, mk_pte(split, ref_prot));
+		goto repeat;
 	}
 	return 0;
 }
-- 
cgit v1.2.3-59-g8ed1b


From bb5c2dbd57d93a36b0386dd783dd95e0cbaaa23f Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:56 +0100
Subject: x86: further cpa largepage-split cleanups

further cpa largepage-split cleanups: make the splitup isolated
functionality, without leaking details back into __change_page_attr().

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_32.c | 89 ++++++++++++++++++++++++++---------------------
 1 file changed, 49 insertions(+), 40 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index 1011b21f8db0..14c923b3b07f 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -37,33 +37,6 @@ pte_t *lookup_address(unsigned long address, int *level)
 	return pte_offset_kernel(pmd, address);
 }
 
-static struct page *
-split_large_page(unsigned long address, pgprot_t ref_prot)
-{
-	unsigned long addr;
-	struct page *base;
-	pte_t *pbase;
-	int i;
-
-	base = alloc_pages(GFP_KERNEL, 0);
-	if (!base)
-		return NULL;
-
-	/*
-	 * page_private is used to track the number of entries in
-	 * the page table page that have non standard attributes.
-	 */
-	address = __pa(address);
-	addr = address & LARGE_PAGE_MASK;
-	pbase = (pte_t *)page_address(base);
-	paravirt_alloc_pt(&init_mm, page_to_pfn(base));
-
-	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
-		set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));
-
-	return base;
-}
-
 static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 {
 	unsigned long flags;
@@ -88,14 +61,58 @@ static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 	spin_unlock_irqrestore(&pgd_lock, flags);
 }
 
+static int
+split_large_page(pte_t *kpte, unsigned long address, pgprot_t ref_prot)
+{
+	int i, level;
+	unsigned long addr;
+	pte_t *pbase, *tmp;
+	struct page *base;
+
+	base = alloc_pages(GFP_KERNEL, 0);
+	if (!base)
+		return -ENOMEM;
+
+	down_write(&init_mm.mmap_sem);
+	/*
+	 * Check for races, another CPU might have split this page
+	 * up for us already:
+	 */
+	tmp = lookup_address(address, &level);
+	if (tmp != kpte)
+		goto out_unlock;
+
+	address = __pa(address);
+	addr = address & LARGE_PAGE_MASK;
+	pbase = (pte_t *)page_address(base);
+	paravirt_alloc_pt(&init_mm, page_to_pfn(base));
+
+	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
+		set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));
+
+	/*
+	 * Install the new, split up pagetable:
+	 */
+	set_pmd_pte(kpte, address, mk_pte(base, ref_prot));
+	base = NULL;
+
+out_unlock:
+	up_write(&init_mm.mmap_sem);
+
+	if (base)
+		__free_pages(base, 0);
+
+	return 0;
+}
+
 static int __change_page_attr(struct page *page, pgprot_t prot)
 {
 	pgprot_t ref_prot = PAGE_KERNEL;
 	struct page *kpte_page;
 	unsigned long address;
+	int level, err = 0;
 	pgprot_t oldprot;
 	pte_t *kpte;
-	int level;
 
 	BUG_ON(PageHighMem(page));
 	address = (unsigned long)page_address(page);
@@ -127,19 +144,11 @@ repeat:
 	if (level == 3) {
 		set_pte_atomic(kpte, mk_pte(page, prot));
 	} else {
-		struct page *split;
-
-		split = split_large_page(address, ref_prot);
-		if (!split)
-			return -ENOMEM;
-
-		/*
-		 * There's a small window here to waste a bit of RAM:
-		 */
-		set_pmd_pte(kpte, address, mk_pte(split, ref_prot));
-		goto repeat;
+		err = split_large_page(kpte, address, ref_prot);
+		if (!err)
+			goto repeat;
 	}
-	return 0;
+	return err;
 }
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From 5508a7489659f1eed108d3ae7c2d36c8794ee330 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:56 +0100
Subject: x86: cpa self-test fixes

cpa self-test fixes. change_page_attr_addr() was buggy, it
passed in a virtual address as a physical one.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr-test.c |  8 --------
 arch/x86/mm/pageattr_32.c   | 10 +++++++---
 2 files changed, 7 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 91e05a26004d..a12dabbd5c33 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -106,12 +106,6 @@ static __init int print_split(struct split_state *s)
 	return err;
 }
 
-static __init int state_same(struct split_state *a, struct split_state *b)
-{
-	return a->lpg == b->lpg && a->gpg == b->gpg && a->spg == b->spg &&
-		a->exec == b->exec;
-}
-
 static unsigned long __initdata addr[NTEST];
 static unsigned int __initdata len[NTEST];
 
@@ -229,8 +223,6 @@ static __init int exercise_pageattr(void)
 	global_flush_tlb();
 
 	failed += print_split(&sc);
-	if (!state_same(&sa, &sc))
-		failed++;
 
 	if (failed)
 		printk(KERN_ERR "CPA selftests NOT PASSED. Please report.\n");
diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index 14c923b3b07f..ad0868bfa374 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -79,8 +79,10 @@ split_large_page(pte_t *kpte, unsigned long address, pgprot_t ref_prot)
 	 * up for us already:
 	 */
 	tmp = lookup_address(address, &level);
-	if (tmp != kpte)
+	if (tmp != kpte) {
+		WARN_ON_ONCE(1);
 		goto out_unlock;
+	}
 
 	address = __pa(address);
 	addr = address & LARGE_PAGE_MASK;
@@ -181,17 +183,19 @@ EXPORT_SYMBOL(change_page_attr);
 int change_page_attr_addr(unsigned long addr, int numpages, pgprot_t prot)
 {
 	int i;
-	unsigned long pfn = (addr >> PAGE_SHIFT);
+	unsigned long pfn = (__pa(addr) >> PAGE_SHIFT);
 
 	for (i = 0; i < numpages; i++) {
 		if (!pfn_valid(pfn + i)) {
+			WARN_ON_ONCE(1);
 			break;
 		} else {
 			int level;
 			pte_t *pte = lookup_address(addr + i*PAGE_SIZE, &level);
-			BUG_ON(pte && !pte_none(*pte));
+			BUG_ON(pte && pte_none(*pte));
 		}
 	}
+
 	return change_page_attr(virt_to_page(addr), i, prot);
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 7afe15b9d888050435cd154906828df88d4e667d Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:57 +0100
Subject: x86: simplify cpa largepage split, #3

simplify cpa largepage split: push the reference protection bits
into the largepage-splitting function.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_32.c | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index ad0868bfa374..0966023dfd70 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -61,13 +61,13 @@ static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 	spin_unlock_irqrestore(&pgd_lock, flags);
 }
 
-static int
-split_large_page(pte_t *kpte, unsigned long address, pgprot_t ref_prot)
+static int split_large_page(pte_t *kpte, unsigned long address)
 {
-	int i, level;
+	pgprot_t ref_prot = pte_pgprot(pte_clrhuge(*kpte));
 	unsigned long addr;
 	pte_t *pbase, *tmp;
 	struct page *base;
+	int i, level;
 
 	base = alloc_pages(GFP_KERNEL, 0);
 	if (!base)
@@ -109,11 +109,9 @@ out_unlock:
 
 static int __change_page_attr(struct page *page, pgprot_t prot)
 {
-	pgprot_t ref_prot = PAGE_KERNEL;
 	struct page *kpte_page;
 	unsigned long address;
 	int level, err = 0;
-	pgprot_t oldprot;
 	pte_t *kpte;
 
 	BUG_ON(PageHighMem(page));
@@ -124,7 +122,6 @@ repeat:
 	if (!kpte)
 		return -EINVAL;
 
-	oldprot = pte_pgprot(*kpte);
 	kpte_page = virt_to_page(kpte);
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
@@ -137,16 +134,10 @@ repeat:
 		address < (unsigned long)&_etext &&
 	       (pgprot_val(prot) & _PAGE_NX));
 
-	if ((address & LARGE_PAGE_MASK) < (unsigned long)&_etext)
-		ref_prot = PAGE_KERNEL_EXEC;
-
-	ref_prot = canon_pgprot(ref_prot);
-	prot = canon_pgprot(prot);
-
 	if (level == 3) {
-		set_pte_atomic(kpte, mk_pte(page, prot));
+		set_pte_atomic(kpte, mk_pte(page, canon_pgprot(prot)));
 	} else {
-		err = split_large_page(kpte, address, ref_prot);
+		err = split_large_page(kpte, address);
 		if (!err)
 			goto repeat;
 	}
-- 
cgit v1.2.3-59-g8ed1b


From 9a3dc7804e9856668caef41efc54179e61ffccc0 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:57 +0100
Subject: x86: cpa: simplify locking

further simplify cpa locking: since the largepage-split is a
slowpath, use the pgd_lock for the whole operation, intead
of the mmap_sem.

This also makes it suitable for DEBUG_PAGEALLOC purposes again.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_32.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index 0966023dfd70..9cf2fea54eb5 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -37,9 +37,8 @@ pte_t *lookup_address(unsigned long address, int *level)
 	return pte_offset_kernel(pmd, address);
 }
 
-static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
+static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 {
-	unsigned long flags;
 	struct page *page;
 
 	/* change init_mm */
@@ -47,7 +46,6 @@ static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 	if (SHARED_KERNEL_PMD)
 		return;
 
-	spin_lock_irqsave(&pgd_lock, flags);
 	for (page = pgd_list; page; page = (struct page *)page->index) {
 		pgd_t *pgd;
 		pud_t *pud;
@@ -58,12 +56,12 @@ static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 		pmd = pmd_offset(pud, address);
 		set_pte_atomic((pte_t *)pmd, pte);
 	}
-	spin_unlock_irqrestore(&pgd_lock, flags);
 }
 
 static int split_large_page(pte_t *kpte, unsigned long address)
 {
 	pgprot_t ref_prot = pte_pgprot(pte_clrhuge(*kpte));
+	unsigned long flags;
 	unsigned long addr;
 	pte_t *pbase, *tmp;
 	struct page *base;
@@ -73,7 +71,7 @@ static int split_large_page(pte_t *kpte, unsigned long address)
 	if (!base)
 		return -ENOMEM;
 
-	down_write(&init_mm.mmap_sem);
+	spin_lock_irqsave(&pgd_lock, flags);
 	/*
 	 * Check for races, another CPU might have split this page
 	 * up for us already:
@@ -95,11 +93,11 @@ static int split_large_page(pte_t *kpte, unsigned long address)
 	/*
 	 * Install the new, split up pagetable:
 	 */
-	set_pmd_pte(kpte, address, mk_pte(base, ref_prot));
+	__set_pmd_pte(kpte, address, mk_pte(base, ref_prot));
 	base = NULL;
 
 out_unlock:
-	up_write(&init_mm.mmap_sem);
+	spin_unlock_irqrestore(&pgd_lock, flags);
 
 	if (base)
 		__free_pages(base, 0);
-- 
cgit v1.2.3-59-g8ed1b


From 12d6f21eacc21d84a809829543f2fe45c7e37319 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:58 +0100
Subject: x86: do not PSE on CONFIG_DEBUG_PAGEALLOC=y

get more testing of the c_p_a() code done by not turning off
PSE on DEBUG_PAGEALLOC.

this simplifies the early pagetable setup code, and tests
the largepage-splitup code quite heavily.

In the end, all the largepages will be split up pretty quickly,
so there's no difference to how DEBUG_PAGEALLOC worked before.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/cpu/common.c |  7 -------
 arch/x86/mm/pageattr_32.c    | 12 +++++++++++-
 include/asm-x86/cacheflush.h |  5 -----
 include/linux/mm.h           | 14 +++++++++++++-
 init/main.c                  |  5 +++++
 5 files changed, 29 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index bba850b05d0e..db28aa9e2f69 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -641,13 +641,6 @@ void __init early_cpu_init(void)
 	nexgen_init_cpu();
 	umc_init_cpu();
 	early_cpu_detect();
-
-#ifdef CONFIG_DEBUG_PAGEALLOC
-	/* pse is not compatible with on-the-fly unmapping,
-	 * disable it even if the cpus claim to support it.
-	 */
-	setup_clear_cpu_cap(X86_FEATURE_PSE);
-#endif
 }
 
 /* Make sure %fs is initialized properly in idle threads */
diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index 9cf2fea54eb5..dd49b16b3a0e 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -61,13 +61,17 @@ static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 static int split_large_page(pte_t *kpte, unsigned long address)
 {
 	pgprot_t ref_prot = pte_pgprot(pte_clrhuge(*kpte));
+	gfp_t gfp_flags = GFP_KERNEL;
 	unsigned long flags;
 	unsigned long addr;
 	pte_t *pbase, *tmp;
 	struct page *base;
 	int i, level;
 
-	base = alloc_pages(GFP_KERNEL, 0);
+#ifdef CONFIG_DEBUG_PAGEALLOC
+	gfp_flags = GFP_ATOMIC;
+#endif
+	base = alloc_pages(gfp_flags, 0);
 	if (!base)
 		return -ENOMEM;
 
@@ -218,6 +222,12 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
 					   numpages * PAGE_SIZE);
 	}
 
+	/*
+	 * If page allocator is not up yet then do not call c_p_a():
+	 */
+	if (!debug_pagealloc_enabled)
+		return;
+
 	/*
 	 * the return value is ignored - the calls cannot fail,
 	 * large pages are disabled at boot time.
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index 9411a2d3f19c..fccb563e2305 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -29,11 +29,6 @@ int change_page_attr(struct page *page, int numpages, pgprot_t prot);
 int change_page_attr_addr(unsigned long addr, int numpages, pgprot_t prot);
 void clflush_cache_range(void *addr, int size);
 
-#ifdef CONFIG_DEBUG_PAGEALLOC
-/* internal debugging function */
-void kernel_map_pages(struct page *page, int numpages, int enable);
-#endif
-
 #ifdef CONFIG_DEBUG_RODATA
 void mark_rodata_ro(void);
 #endif
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 3c22d971afa7..1bba6789a50a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1118,9 +1118,21 @@ static inline void vm_stat_account(struct mm_struct *mm,
 }
 #endif /* CONFIG_PROC_FS */
 
-#ifndef CONFIG_DEBUG_PAGEALLOC
+#ifdef CONFIG_DEBUG_PAGEALLOC
+extern int debug_pagealloc_enabled;
+
+extern void kernel_map_pages(struct page *page, int numpages, int enable);
+
+static inline void enable_debug_pagealloc(void)
+{
+	debug_pagealloc_enabled = 1;
+}
+#else
 static inline void
 kernel_map_pages(struct page *page, int numpages, int enable) {}
+static inline void enable_debug_pagealloc(void)
+{
+}
 #endif
 
 extern struct vm_area_struct *get_gate_vma(struct task_struct *tsk);
diff --git a/init/main.c b/init/main.c
index 3316dffe3e57..cb81ed116f62 100644
--- a/init/main.c
+++ b/init/main.c
@@ -318,6 +318,10 @@ static int __init unknown_bootoption(char *param, char *val)
 	return 0;
 }
 
+#ifdef CONFIG_DEBUG_PAGEALLOC
+int __read_mostly debug_pagealloc_enabled = 0;
+#endif
+
 static int __init init_setup(char *str)
 {
 	unsigned int i;
@@ -552,6 +556,7 @@ asmlinkage void __init start_kernel(void)
 	preempt_disable();
 	build_all_zonelists();
 	page_alloc_init();
+	enable_debug_pagealloc();
 	printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line);
 	parse_early_param();
 	parse_args("Booting kernel", static_command_line, __start___param,
-- 
cgit v1.2.3-59-g8ed1b


From 55ce29ba16f82a31424a98988cf37c3babe1b7c8 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:58 +0100
Subject: x86: cpa self-test, WARN_ON()

add a WARN_ON() to the cpa-self-test failure branch.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr-test.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index a12dabbd5c33..0dce0e248a42 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -224,10 +224,12 @@ static __init int exercise_pageattr(void)
 
 	failed += print_split(&sc);
 
-	if (failed)
+	if (failed) {
 		printk(KERN_ERR "CPA selftests NOT PASSED. Please report.\n");
-	else
+		WARN_ON(1);
+	} else {
 		printk(KERN_INFO "CPA selftests PASSED\n");
+	}
 
 	return 0;
 }
-- 
cgit v1.2.3-59-g8ed1b


From bbb09f5cfcde7e4cf1466111d671ac4a62931148 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:59 +0100
Subject: x86: prepare for the unification of the cpa code

prepare for the unification of the cpa code, by unifying the
lookup_address() logic between 32-bit and 64-bit.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr-test.c | 4 ++--
 arch/x86/mm/pageattr_32.c   | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 0dce0e248a42..6cc106b388a5 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -20,10 +20,10 @@ enum {
 	LOWEST_LEVEL		= 4,
 	LPS			= (1 << PMD_SHIFT),
 #elif defined(CONFIG_X86_PAE)
-	LOWEST_LEVEL		= 3,
+	LOWEST_LEVEL		= 4,
 	LPS			= (1 << PMD_SHIFT),
 #else
-	LOWEST_LEVEL		= 3, /* lookup_address lies here */
+	LOWEST_LEVEL		= 4, /* lookup_address lies here */
 	LPS			= (1 << 22),
 #endif
 	GPS			= (1<<30)
diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index dd49b16b3a0e..1c7bd81a4194 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -29,10 +29,10 @@ pte_t *lookup_address(unsigned long address, int *level)
 	pmd = pmd_offset(pud, address);
 	if (pmd_none(*pmd))
 		return NULL;
-	*level = 2;
+	*level = 3;
 	if (pmd_large(*pmd))
 		return (pte_t *)pmd;
-	*level = 3;
+	*level = 4;
 
 	return pte_offset_kernel(pmd, address);
 }
@@ -136,7 +136,7 @@ repeat:
 		address < (unsigned long)&_etext &&
 	       (pgprot_val(prot) & _PAGE_NX));
 
-	if (level == 3) {
+	if (level == 4) {
 		set_pte_atomic(kpte, mk_pte(page, canon_pgprot(prot)));
 	} else {
 		err = split_large_page(kpte, address);
-- 
cgit v1.2.3-59-g8ed1b


From a5f55035f63cf040b4a7161226ec35520cc10daa Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:59 +0100
Subject: x86: prepare for the unification of the cpa code

prepare for the unification of the cpa code, by unifying the
lookup_address() logic between 32-bit and 64-bit.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 73dbbb4048e6..7b734ee5b7fd 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -19,26 +19,21 @@ pte_t *lookup_address(unsigned long address, int *level)
 	pgd_t *pgd = pgd_offset_k(address);
 	pud_t *pud;
 	pmd_t *pmd;
-	pte_t *pte;
 
 	if (pgd_none(*pgd))
 		return NULL;
 	pud = pud_offset(pgd, address);
-	if (!pud_present(*pud))
+	if (pud_none(*pud))
 		return NULL;
 	pmd = pmd_offset(pud, address);
-	if (!pmd_present(*pmd))
+	if (pmd_none(*pmd))
 		return NULL;
 	*level = 3;
 	if (pmd_large(*pmd))
 		return (pte_t *)pmd;
 	*level = 4;
 
-	pte = pte_offset_kernel(pmd, address);
-	if (pte && !pte_present(*pte))
-		pte = NULL;
-
-	return pte;
+	return pte_offset_kernel(pmd, address);
 }
 
 static struct page *
-- 
cgit v1.2.3-59-g8ed1b


From d6ee09a2a0865f5640592e73ca5da4b06404b200 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:59 +0100
Subject: x86: simplify pageattr_64.c

simplify pageattr_64.c.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 168 +++++++++++++++-------------------------------
 1 file changed, 55 insertions(+), 113 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 7b734ee5b7fd..8493c469f877 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -9,6 +9,14 @@
 #include <linux/slab.h>
 #include <linux/mm.h>
 
+void clflush_cache_range(void *addr, int size)
+{
+	int i;
+
+	for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
+		clflush(addr+i);
+}
+
 #include <asm/processor.h>
 #include <asm/tlbflush.h>
 #include <asm/uaccess.h>
@@ -47,12 +55,6 @@ split_large_page(unsigned long address, pgprot_t prot, pgprot_t ref_prot)
 	base = alloc_pages(GFP_KERNEL, 0);
 	if (!base)
 		return NULL;
-	/*
-	 * page_private is used to track the number of entries in
-	 * the page table page have non standard attributes.
-	 */
-	SetPagePrivate(base);
-	page_private(base) = 0;
 
 	address = __pa(address);
 	addr = address & LARGE_PAGE_MASK;
@@ -64,80 +66,13 @@ split_large_page(unsigned long address, pgprot_t prot, pgprot_t ref_prot)
 	return base;
 }
 
-void clflush_cache_range(void *addr, int size)
-{
-	int i;
-
-	for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
-		clflush(addr+i);
-}
-
-static void flush_kernel_map(void *arg)
-{
-	struct list_head *l = (struct list_head *)arg;
-	struct page *pg;
-
-	__flush_tlb_all();
-
-	/* When clflush is available always use it because it is
-	   much cheaper than WBINVD. */
-	/* clflush is still broken. Disable for now. */
-	if (1 || !cpu_has_clflush) {
-		wbinvd();
-	} else {
-		list_for_each_entry(pg, l, lru) {
-			void *addr = page_address(pg);
-
-			clflush_cache_range(addr, PAGE_SIZE);
-		}
-	}
-}
-
-static inline void flush_map(struct list_head *l)
-{
-	on_each_cpu(flush_kernel_map, l, 1, 1);
-}
-
-static LIST_HEAD(deferred_pages); /* protected by init_mm.mmap_sem */
-
-static inline void save_page(struct page *fpage)
-{
-	if (!test_and_set_bit(PG_arch_1, &fpage->flags))
-		list_add(&fpage->lru, &deferred_pages);
-}
-
-/*
- * No more special protections in this 2/4MB area - revert to a
- * large page again.
- */
-static void revert_page(unsigned long address, pgprot_t ref_prot)
-{
-	unsigned long pfn;
-	pgd_t *pgd;
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t large_pte;
-
-	pgd = pgd_offset_k(address);
-	BUG_ON(pgd_none(*pgd));
-	pud = pud_offset(pgd, address);
-	BUG_ON(pud_none(*pud));
-	pmd = pmd_offset(pud, address);
-	BUG_ON(pmd_val(*pmd) & _PAGE_PSE);
-	pfn = (__pa(address) & LARGE_PAGE_MASK) >> PAGE_SHIFT;
-	large_pte = pfn_pte(pfn, ref_prot);
-	large_pte = pte_mkhuge(large_pte);
-
-	set_pte((pte_t *)pmd, large_pte);
-}
-
 static int
 __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
 		   pgprot_t ref_prot)
 {
 	struct page *kpte_page;
-	pgprot_t ref_prot2;
 	pte_t *kpte;
+	pgprot_t ref_prot2, oldprot;
 	int level;
 
 	kpte = lookup_address(address, &level);
@@ -145,8 +80,12 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
 		return 0;
 
 	kpte_page = virt_to_page(kpte);
+	oldprot = pte_pgprot(*kpte);
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
+	ref_prot = canon_pgprot(ref_prot);
+	prot = canon_pgprot(prot);
+
 	if (pgprot_val(prot) != pgprot_val(ref_prot)) {
 		if (level == 4) {
 			set_pte(kpte, pfn_pte(pfn, prot));
@@ -165,38 +104,29 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
 			set_pte(kpte, mk_pte(split, ref_prot2));
 			kpte_page = split;
 		}
-		page_private(kpte_page)++;
 	} else {
 		if (level == 4) {
 			set_pte(kpte, pfn_pte(pfn, ref_prot));
-			BUG_ON(page_private(kpte_page) == 0);
-			page_private(kpte_page)--;
 		} else
 			BUG();
 	}
 
-	/* on x86-64 the direct mapping set at boot is not using 4k pages */
-	BUG_ON(PageReserved(kpte_page));
-
-	save_page(kpte_page);
-	if (page_private(kpte_page) == 0)
-		revert_page(address, ref_prot);
 	return 0;
 }
 
-/*
- * Change the page attributes of an page in the linear mapping.
- *
- * This should be used when a page is mapped with a different caching policy
- * than write-back somewhere - some CPUs do not like it when mappings with
- * different caching policies exist. This changes the page attributes of the
- * in kernel linear mapping too.
+/**
+ * change_page_attr_addr - Change page table attributes in linear mapping
+ * @address: Virtual address in linear mapping.
+ * @numpages: Number of pages to change
+ * @prot:    New page table attribute (PAGE_*)
  *
- * The caller needs to ensure that there are no conflicting mappings elsewhere.
- * This function only deals with the kernel linear map.
+ * Change page attributes of a page in the direct mapping. This is a variant
+ * of change_page_attr() that also works on memory holes that do not have
+ * mem_map entry (pfn_valid() is false).
  *
- * Caller must call global_flush_tlb() after this.
+ * See change_page_attr() documentation for more details.
  */
+
 int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 {
 	int err = 0, kernel_map = 0, i;
@@ -236,7 +166,26 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 	return err;
 }
 
-/* Don't call this for MMIO areas that may not have a mem_map entry */
+/**
+ * change_page_attr - Change page table attributes in the linear mapping.
+ * @page: First page to change
+ * @numpages: Number of pages to change
+ * @prot: New protection/caching type (PAGE_*)
+ *
+ * Returns 0 on success, otherwise a negated errno.
+ *
+ * This should be used when a page is mapped with a different caching policy
+ * than write-back somewhere - some CPUs do not like it when mappings with
+ * different caching policies exist. This changes the page attributes of the
+ * in kernel linear mapping too.
+ *
+ * Caller must call global_flush_tlb() later to make the changes active.
+ *
+ * The caller needs to ensure that there are no conflicting mappings elsewhere
+ * (e.g. in user space) * This function only deals with the kernel linear map.
+ *
+ * For MMIO areas without mem_map use change_page_attr_addr() instead.
+ */
 int change_page_attr(struct page *page, int numpages, pgprot_t prot)
 {
 	unsigned long addr = (unsigned long)page_address(page);
@@ -245,29 +194,22 @@ int change_page_attr(struct page *page, int numpages, pgprot_t prot)
 }
 EXPORT_SYMBOL(change_page_attr);
 
-void global_flush_tlb(void)
+static void flush_kernel_map(void *arg)
 {
-	struct page *pg, *next;
-	struct list_head l;
-
 	/*
-	 * Write-protect the semaphore, to exclude two contexts
-	 * doing a list_replace_init() call in parallel and to
-	 * exclude new additions to the deferred_pages list:
+	 * Flush all to work around Errata in early athlons regarding
+	 * large page flushing.
 	 */
-	down_write(&init_mm.mmap_sem);
-	list_replace_init(&deferred_pages, &l);
-	up_write(&init_mm.mmap_sem);
+	__flush_tlb_all();
 
-	flush_map(&l);
+	if (boot_cpu_data.x86_model >= 4)
+		wbinvd();
+}
 
-	list_for_each_entry_safe(pg, next, &l, lru) {
-		list_del(&pg->lru);
-		clear_bit(PG_arch_1, &pg->flags);
-		if (page_private(pg) != 0)
-			continue;
-		ClearPagePrivate(pg);
-		__free_page(pg);
-	}
+void global_flush_tlb(void)
+{
+	BUG_ON(irqs_disabled());
+
+	on_each_cpu(flush_kernel_map, NULL, 1, 1);
 }
 EXPORT_SYMBOL(global_flush_tlb);
-- 
cgit v1.2.3-59-g8ed1b


From 5e5224a77eb4c68a982c8096945b0af902f9d655 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:00 +0100
Subject: x86: unify header part of pageattr_64.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 8493c469f877..107b03c7113c 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -19,8 +19,9 @@ void clflush_cache_range(void *addr, int size)
 
 #include <asm/processor.h>
 #include <asm/tlbflush.h>
+#include <asm/sections.h>
 #include <asm/uaccess.h>
-#include <asm/io.h>
+#include <asm/pgalloc.h>
 
 pte_t *lookup_address(unsigned long address, int *level)
 {
-- 
cgit v1.2.3-59-g8ed1b


From a5c62514885a778016c03dbba833d4ff6786e30c Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:00 +0100
Subject: x86: clean up and simplify 64-bit split_large_page()

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 107b03c7113c..cbded8300e36 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -46,7 +46,7 @@ pte_t *lookup_address(unsigned long address, int *level)
 }
 
 static struct page *
-split_large_page(unsigned long address, pgprot_t prot, pgprot_t ref_prot)
+split_large_page(unsigned long address, pgprot_t ref_prot)
 {
 	unsigned long addr;
 	struct page *base;
@@ -60,10 +60,9 @@ split_large_page(unsigned long address, pgprot_t prot, pgprot_t ref_prot)
 	address = __pa(address);
 	addr = address & LARGE_PAGE_MASK;
 	pbase = (pte_t *)page_address(base);
-	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) {
-		pbase[i] = pfn_pte(addr >> PAGE_SHIFT,
-				   addr == address ? prot : ref_prot);
-	}
+	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
+		pbase[i] = pfn_pte(addr >> PAGE_SHIFT, ref_prot);
+
 	return base;
 }
 
@@ -76,6 +75,7 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
 	pgprot_t ref_prot2, oldprot;
 	int level;
 
+repeat:
 	kpte = lookup_address(address, &level);
 	if (!kpte)
 		return 0;
@@ -98,12 +98,12 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
 			struct page *split;
 
 			ref_prot2 = pte_pgprot(pte_clrhuge(*kpte));
-			split = split_large_page(address, prot, ref_prot2);
+			split = split_large_page(address, ref_prot2);
 			if (!split)
 				return -ENOMEM;
 			pgprot_val(ref_prot2) &= ~_PAGE_NX;
 			set_pte(kpte, mk_pte(split, ref_prot2));
-			kpte_page = split;
+			goto repeat;
 		}
 	} else {
 		if (level == 4) {
-- 
cgit v1.2.3-59-g8ed1b


From 34eff1d75b26eac5c04f9c5b52ba9e3bf1dd8877 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:01 +0100
Subject: x86: simplify __change_page_attr()

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 47 ++++++++++++++++++-----------------------------
 1 file changed, 18 insertions(+), 29 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index cbded8300e36..5eff244c16db 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -67,8 +67,7 @@ split_large_page(unsigned long address, pgprot_t ref_prot)
 }
 
 static int
-__change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
-		   pgprot_t ref_prot)
+__change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot)
 {
 	struct page *kpte_page;
 	pte_t *kpte;
@@ -84,32 +83,24 @@ repeat:
 	oldprot = pte_pgprot(*kpte);
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
-	ref_prot = canon_pgprot(ref_prot);
 	prot = canon_pgprot(prot);
 
-	if (pgprot_val(prot) != pgprot_val(ref_prot)) {
-		if (level == 4) {
-			set_pte(kpte, pfn_pte(pfn, prot));
-		} else {
-			/*
-			 * split_large_page will take the reference for this
-			 * change_page_attr on the split page.
-			 */
-			struct page *split;
-
-			ref_prot2 = pte_pgprot(pte_clrhuge(*kpte));
-			split = split_large_page(address, ref_prot2);
-			if (!split)
-				return -ENOMEM;
-			pgprot_val(ref_prot2) &= ~_PAGE_NX;
-			set_pte(kpte, mk_pte(split, ref_prot2));
-			goto repeat;
-		}
+	if (level == 4) {
+		set_pte(kpte, pfn_pte(pfn, prot));
 	} else {
-		if (level == 4) {
-			set_pte(kpte, pfn_pte(pfn, ref_prot));
-		} else
-			BUG();
+		/*
+		 * split_large_page will take the reference for this
+		 * change_page_attr on the split page.
+		 */
+		struct page *split;
+
+		ref_prot2 = pte_pgprot(pte_clrhuge(*kpte));
+		split = split_large_page(address, ref_prot2);
+		if (!split)
+			return -ENOMEM;
+		pgprot_val(ref_prot2) &= ~_PAGE_NX;
+		set_pte(kpte, mk_pte(split, ref_prot2));
+		goto repeat;
 	}
 
 	return 0;
@@ -144,8 +135,7 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 		unsigned long pfn = __pa(address) >> PAGE_SHIFT;
 
 		if (!kernel_map || pte_present(pfn_pte(0, prot))) {
-			err = __change_page_attr(address, pfn, prot,
-						PAGE_KERNEL);
+			err = __change_page_attr(address, pfn, prot);
 			if (err)
 				break;
 		}
@@ -158,8 +148,7 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 			addr2 = __START_KERNEL_map + __pa(address);
 			/* Make sure the kernel mappings stay executable */
 			prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
-			err = __change_page_attr(addr2, pfn, prot2,
-						 PAGE_KERNEL_EXEC);
+			err = __change_page_attr(addr2, pfn, prot2);
 		}
 	}
 	up_write(&init_mm.mmap_sem);
-- 
cgit v1.2.3-59-g8ed1b


From 0d82494ebd256bfff2336689271367f9284b4865 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:02 +0100
Subject: x86: change 64-bit __change_page_attr() to struct page

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 5eff244c16db..5a03fb5fd530 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -67,7 +67,7 @@ split_large_page(unsigned long address, pgprot_t ref_prot)
 }
 
 static int
-__change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot)
+__change_page_attr(unsigned long address, struct page *page, pgprot_t prot)
 {
 	struct page *kpte_page;
 	pte_t *kpte;
@@ -86,7 +86,7 @@ repeat:
 	prot = canon_pgprot(prot);
 
 	if (level == 4) {
-		set_pte(kpte, pfn_pte(pfn, prot));
+		set_pte(kpte, mk_pte(page, prot));
 	} else {
 		/*
 		 * split_large_page will take the reference for this
@@ -135,7 +135,7 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 		unsigned long pfn = __pa(address) >> PAGE_SHIFT;
 
 		if (!kernel_map || pte_present(pfn_pte(0, prot))) {
-			err = __change_page_attr(address, pfn, prot);
+			err = __change_page_attr(address, pfn_to_page(pfn), prot);
 			if (err)
 				break;
 		}
@@ -148,7 +148,7 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 			addr2 = __START_KERNEL_map + __pa(address);
 			/* Make sure the kernel mappings stay executable */
 			prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
-			err = __change_page_attr(addr2, pfn, prot2);
+			err = __change_page_attr(addr2, pfn_to_page(pfn), prot2);
 		}
 	}
 	up_write(&init_mm.mmap_sem);
-- 
cgit v1.2.3-59-g8ed1b


From d9db847f29bec9957c53fbdc05d65c4286235005 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:02 +0100
Subject: x86: change 64-bit pageattr to use set_pte_atomic()

NOP change - same as set_pte().

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 5a03fb5fd530..34acbcd62eb8 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -86,7 +86,7 @@ repeat:
 	prot = canon_pgprot(prot);
 
 	if (level == 4) {
-		set_pte(kpte, mk_pte(page, prot));
+		set_pte_atomic(kpte, mk_pte(page, prot));
 	} else {
 		/*
 		 * split_large_page will take the reference for this
@@ -99,7 +99,7 @@ repeat:
 		if (!split)
 			return -ENOMEM;
 		pgprot_val(ref_prot2) &= ~_PAGE_NX;
-		set_pte(kpte, mk_pte(split, ref_prot2));
+		set_pte_atomic(kpte, mk_pte(split, ref_prot2));
 		goto repeat;
 	}
 
-- 
cgit v1.2.3-59-g8ed1b


From 44136717e06b888c2d3129a80abf9ac79233f1eb Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:03 +0100
Subject: x86: 64-bit pageattr.c, prepare for unification

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 34acbcd62eb8..190d4d37bc2f 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -123,14 +123,15 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 {
 	int err = 0, kernel_map = 0, i;
 
+#ifdef CONFIG_X86_64
 	if (address >= __START_KERNEL_map &&
 			address < __START_KERNEL_map + KERNEL_TEXT_SIZE) {
 
 		address = (unsigned long)__va(__pa(address));
 		kernel_map = 1;
 	}
+#endif
 
-	down_write(&init_mm.mmap_sem);
 	for (i = 0; i < numpages; i++, address += PAGE_SIZE) {
 		unsigned long pfn = __pa(address) >> PAGE_SHIFT;
 
@@ -139,8 +140,11 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 			if (err)
 				break;
 		}
-		/* Handle kernel mapping too which aliases part of the
-		 * lowmem */
+#ifdef CONFIG_X86_64
+		/*
+		 * Handle kernel mapping too which aliases part of
+		 * lowmem:
+		 */
 		if (__pa(address) < KERNEL_TEXT_SIZE) {
 			unsigned long addr2;
 			pgprot_t prot2;
@@ -150,8 +154,8 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 			prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
 			err = __change_page_attr(addr2, pfn_to_page(pfn), prot2);
 		}
+#endif
 	}
-	up_write(&init_mm.mmap_sem);
 
 	return err;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 6faa4c53b2f06fd271060761ce27f4f53289175c Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:03 +0100
Subject: x86: 64-bit, add the new split_large_page() function

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 95 +++++++++++++++++++++++++++++++++++------------
 1 file changed, 71 insertions(+), 24 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 190d4d37bc2f..139795029fb6 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -45,34 +45,91 @@ pte_t *lookup_address(unsigned long address, int *level)
 	return pte_offset_kernel(pmd, address);
 }
 
-static struct page *
-split_large_page(unsigned long address, pgprot_t ref_prot)
+static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 {
+	/* change init_mm */
+	set_pte_atomic(kpte, pte);
+#ifdef CONFIG_X86_32
+	if (SHARED_KERNEL_PMD)
+		return;
+	{
+		struct page *page;
+
+		for (page = pgd_list; page; page = (struct page *)page->index) {
+			pgd_t *pgd;
+			pud_t *pud;
+			pmd_t *pmd;
+
+			pgd = (pgd_t *)page_address(page) + pgd_index(address);
+			pud = pud_offset(pgd, address);
+			pmd = pmd_offset(pud, address);
+			set_pte_atomic((pte_t *)pmd, pte);
+		}
+	}
+#endif
+}
+
+static int split_large_page(pte_t *kpte, unsigned long address)
+{
+	pgprot_t ref_prot = pte_pgprot(pte_clrhuge(*kpte));
+	gfp_t gfp_flags = GFP_KERNEL;
+	unsigned long flags;
 	unsigned long addr;
+	pte_t *pbase, *tmp;
 	struct page *base;
-	pte_t *pbase;
-	int i;
+	int i, level;
+
 
-	base = alloc_pages(GFP_KERNEL, 0);
+#ifdef CONFIG_DEBUG_PAGEALLOC
+	gfp_flags = GFP_ATOMIC;
+#endif
+	base = alloc_pages(gfp_flags, 0);
 	if (!base)
-		return NULL;
+		return -ENOMEM;
+
+	spin_lock_irqsave(&pgd_lock, flags);
+	/*
+	 * Check for races, another CPU might have split this page
+	 * up for us already:
+	 */
+	tmp = lookup_address(address, &level);
+	if (tmp != kpte) {
+		WARN_ON_ONCE(1);
+		goto out_unlock;
+	}
 
 	address = __pa(address);
 	addr = address & LARGE_PAGE_MASK;
 	pbase = (pte_t *)page_address(base);
+#ifdef CONFIG_X86_32
+	paravirt_alloc_pt(&init_mm, page_to_pfn(base));
+#endif
+
 	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
-		pbase[i] = pfn_pte(addr >> PAGE_SHIFT, ref_prot);
+		set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));
+
+	/*
+	 * Install the new, split up pagetable:
+	 */
+	__set_pmd_pte(kpte, address, mk_pte(base, ref_prot));
+	base = NULL;
+
+out_unlock:
+	spin_unlock_irqrestore(&pgd_lock, flags);
+
+	if (base)
+		__free_pages(base, 0);
 
-	return base;
+	return 0;
 }
 
 static int
 __change_page_attr(unsigned long address, struct page *page, pgprot_t prot)
 {
+	pgprot_t ref_prot2, oldprot;
 	struct page *kpte_page;
+	int level, err = 0;
 	pte_t *kpte;
-	pgprot_t ref_prot2, oldprot;
-	int level;
 
 repeat:
 	kpte = lookup_address(address, &level);
@@ -88,22 +145,12 @@ repeat:
 	if (level == 4) {
 		set_pte_atomic(kpte, mk_pte(page, prot));
 	} else {
-		/*
-		 * split_large_page will take the reference for this
-		 * change_page_attr on the split page.
-		 */
-		struct page *split;
-
-		ref_prot2 = pte_pgprot(pte_clrhuge(*kpte));
-		split = split_large_page(address, ref_prot2);
-		if (!split)
-			return -ENOMEM;
-		pgprot_val(ref_prot2) &= ~_PAGE_NX;
-		set_pte_atomic(kpte, mk_pte(split, ref_prot2));
-		goto repeat;
+		err = split_large_page(kpte, address);
+		if (!err)
+			goto repeat;
 	}
 
-	return 0;
+	return err;
 }
 
 /**
-- 
cgit v1.2.3-59-g8ed1b


From 674d67269e79f6697c3480363b28c9b9934fa60c Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:03 +0100
Subject: x86: clean up differences between 64-bit and 32-bit

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 139795029fb6..60cfb687f97c 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -126,30 +126,36 @@ out_unlock:
 static int
 __change_page_attr(unsigned long address, struct page *page, pgprot_t prot)
 {
-	pgprot_t ref_prot2, oldprot;
 	struct page *kpte_page;
 	int level, err = 0;
 	pte_t *kpte;
 
+	BUG_ON(PageHighMem(page));
+
 repeat:
 	kpte = lookup_address(address, &level);
 	if (!kpte)
 		return 0;
 
 	kpte_page = virt_to_page(kpte);
-	oldprot = pte_pgprot(*kpte);
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
-	prot = canon_pgprot(prot);
+
+	/*
+	 * Better fail early if someone sets the kernel text to NX.
+	 * Does not cover __inittext
+	 */
+	BUG_ON(address >= (unsigned long)&_text &&
+		address < (unsigned long)&_etext &&
+	       (pgprot_val(prot) & _PAGE_NX));
 
 	if (level == 4) {
-		set_pte_atomic(kpte, mk_pte(page, prot));
+		set_pte_atomic(kpte, mk_pte(page, canon_pgprot(prot)));
 	} else {
 		err = split_large_page(kpte, address);
 		if (!err)
 			goto repeat;
 	}
-
 	return err;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From f5a50ce1bf53a07cb7d0bab1a87e62cc4f34f0ab Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:03 +0100
Subject: x86: return -EINVAL in __change_page_attr(), instead of 0

careful: might change driver behavior - but this is the right
return value.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 60cfb687f97c..4053832d4108 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -135,7 +135,7 @@ __change_page_attr(unsigned long address, struct page *page, pgprot_t prot)
 repeat:
 	kpte = lookup_address(address, &level);
 	if (!kpte)
-		return 0;
+		return -EINVAL;
 
 	kpte_page = virt_to_page(kpte);
 	BUG_ON(PageLRU(kpte_page));
-- 
cgit v1.2.3-59-g8ed1b


From ace63e3743ae59fc0cce48450bd2e410776b4148 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:03 +0100
Subject: x86: add kernel_map_pages() to 64-bit

needed for DEBUG_PAGEALLOC support and for unification.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 4053832d4108..e1c860800ff1 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -260,3 +260,33 @@ void global_flush_tlb(void)
 	on_each_cpu(flush_kernel_map, NULL, 1, 1);
 }
 EXPORT_SYMBOL(global_flush_tlb);
+
+#ifdef CONFIG_DEBUG_PAGEALLOC
+void kernel_map_pages(struct page *page, int numpages, int enable)
+{
+	if (PageHighMem(page))
+		return;
+	if (!enable) {
+		debug_check_no_locks_freed(page_address(page),
+					   numpages * PAGE_SIZE);
+	}
+
+	/*
+	 * If page allocator is not up yet then do not call c_p_a():
+	 */
+	if (!debug_pagealloc_enabled)
+		return;
+
+	/*
+	 * the return value is ignored - the calls cannot fail,
+	 * large pages are disabled at boot time.
+	 */
+	change_page_attr(page, numpages, enable ? PAGE_KERNEL : __pgprot(0));
+
+	/*
+	 * we should perform an IPI and flush all tlbs,
+	 * but that can deadlock->flush only current cpu.
+	 */
+	__flush_tlb_all();
+}
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From 31a0717cbc6191fc56326fdf95548d87055686e3 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:03 +0100
Subject: x86: enable DEBUG_PAGEALLOC on 64-bit

enable CONFIG_DEBUG_PAGEALLOC=y on 64-bit kernels too.

preliminary testing shows that it's working fine.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.debug | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 38211ff0447f..46d34b2db421 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -41,7 +41,6 @@ comment "Page alloc debug is incompatible with Software Suspend on i386"
 config DEBUG_PAGEALLOC
 	bool "Debug page memory allocations"
 	depends on DEBUG_KERNEL && !HIBERNATION && !HUGETLBFS
-	depends on X86_32
 	help
 	  Unmap pages from the kernel linear mapping after free_pages().
 	  This results in a large slowdown, but helps to find certain types
-- 
cgit v1.2.3-59-g8ed1b


From 44af6c41e6a055a0b9bd0d2067cfbc8e9f6a24df Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:03 +0100
Subject: x86: backmerge 64-bit details into 32-bit pageattr.c

backmerge 64-bit details into 32-bit pageattr.c.

the pageattr_32.c and pageattr_64.c files are now identical.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_32.c | 134 ++++++++++++++++++++++++++++++----------------
 1 file changed, 87 insertions(+), 47 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index 1c7bd81a4194..251613449dd6 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -39,23 +39,26 @@ pte_t *lookup_address(unsigned long address, int *level)
 
 static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 {
-	struct page *page;
-
 	/* change init_mm */
 	set_pte_atomic(kpte, pte);
+#ifdef CONFIG_X86_32
 	if (SHARED_KERNEL_PMD)
 		return;
-
-	for (page = pgd_list; page; page = (struct page *)page->index) {
-		pgd_t *pgd;
-		pud_t *pud;
-		pmd_t *pmd;
-
-		pgd = (pgd_t *)page_address(page) + pgd_index(address);
-		pud = pud_offset(pgd, address);
-		pmd = pmd_offset(pud, address);
-		set_pte_atomic((pte_t *)pmd, pte);
+	{
+		struct page *page;
+
+		for (page = pgd_list; page; page = (struct page *)page->index) {
+			pgd_t *pgd;
+			pud_t *pud;
+			pmd_t *pmd;
+
+			pgd = (pgd_t *)page_address(page) + pgd_index(address);
+			pud = pud_offset(pgd, address);
+			pmd = pmd_offset(pud, address);
+			set_pte_atomic((pte_t *)pmd, pte);
+		}
 	}
+#endif
 }
 
 static int split_large_page(pte_t *kpte, unsigned long address)
@@ -89,7 +92,9 @@ static int split_large_page(pte_t *kpte, unsigned long address)
 	address = __pa(address);
 	addr = address & LARGE_PAGE_MASK;
 	pbase = (pte_t *)page_address(base);
+#ifdef CONFIG_X86_32
 	paravirt_alloc_pt(&init_mm, page_to_pfn(base));
+#endif
 
 	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
 		set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));
@@ -109,15 +114,14 @@ out_unlock:
 	return 0;
 }
 
-static int __change_page_attr(struct page *page, pgprot_t prot)
+static int
+__change_page_attr(unsigned long address, struct page *page, pgprot_t prot)
 {
 	struct page *kpte_page;
-	unsigned long address;
 	int level, err = 0;
 	pte_t *kpte;
 
 	BUG_ON(PageHighMem(page));
-	address = (unsigned long)page_address(page);
 
 repeat:
 	kpte = lookup_address(address, &level);
@@ -146,51 +150,87 @@ repeat:
 	return err;
 }
 
-/*
- * Change the page attributes of an page in the linear mapping.
+/**
+ * change_page_attr_addr - Change page table attributes in linear mapping
+ * @address: Virtual address in linear mapping.
+ * @numpages: Number of pages to change
+ * @prot:    New page table attribute (PAGE_*)
  *
- * This should be used when a page is mapped with a different caching policy
- * than write-back somewhere - some CPUs do not like it when mappings with
- * different caching policies exist. This changes the page attributes of the
- * in kernel linear mapping too.
- *
- * The caller needs to ensure that there are no conflicting mappings elsewhere.
- * This function only deals with the kernel linear map.
+ * Change page attributes of a page in the direct mapping. This is a variant
+ * of change_page_attr() that also works on memory holes that do not have
+ * mem_map entry (pfn_valid() is false).
  *
- * Caller must call global_flush_tlb() after this.
+ * See change_page_attr() documentation for more details.
  */
-int change_page_attr(struct page *page, int numpages, pgprot_t prot)
+
+int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 {
-	int err = 0, i;
+	int err = 0, kernel_map = 0, i;
+
+#ifdef CONFIG_X86_64
+	if (address >= __START_KERNEL_map &&
+			address < __START_KERNEL_map + KERNEL_TEXT_SIZE) {
 
-	for (i = 0; i < numpages; i++, page++) {
-		err = __change_page_attr(page, prot);
-		if (err)
-			break;
+		address = (unsigned long)__va(__pa(address));
+		kernel_map = 1;
+	}
+#endif
+
+	for (i = 0; i < numpages; i++, address += PAGE_SIZE) {
+		unsigned long pfn = __pa(address) >> PAGE_SHIFT;
+
+		if (!kernel_map || pte_present(pfn_pte(0, prot))) {
+			err = __change_page_attr(address, pfn_to_page(pfn), prot);
+			if (err)
+				break;
+		}
+#ifdef CONFIG_X86_64
+		/*
+		 * Handle kernel mapping too which aliases part of
+		 * lowmem:
+		 */
+		if (__pa(address) < KERNEL_TEXT_SIZE) {
+			unsigned long addr2;
+			pgprot_t prot2;
+
+			addr2 = __START_KERNEL_map + __pa(address);
+			/* Make sure the kernel mappings stay executable */
+			prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
+			err = __change_page_attr(addr2, pfn_to_page(pfn), prot2);
+		}
+#endif
 	}
 
 	return err;
 }
-EXPORT_SYMBOL(change_page_attr);
 
-int change_page_attr_addr(unsigned long addr, int numpages, pgprot_t prot)
+/**
+ * change_page_attr - Change page table attributes in the linear mapping.
+ * @page: First page to change
+ * @numpages: Number of pages to change
+ * @prot: New protection/caching type (PAGE_*)
+ *
+ * Returns 0 on success, otherwise a negated errno.
+ *
+ * This should be used when a page is mapped with a different caching policy
+ * than write-back somewhere - some CPUs do not like it when mappings with
+ * different caching policies exist. This changes the page attributes of the
+ * in kernel linear mapping too.
+ *
+ * Caller must call global_flush_tlb() later to make the changes active.
+ *
+ * The caller needs to ensure that there are no conflicting mappings elsewhere
+ * (e.g. in user space) * This function only deals with the kernel linear map.
+ *
+ * For MMIO areas without mem_map use change_page_attr_addr() instead.
+ */
+int change_page_attr(struct page *page, int numpages, pgprot_t prot)
 {
-	int i;
-	unsigned long pfn = (__pa(addr) >> PAGE_SHIFT);
-
-	for (i = 0; i < numpages; i++) {
-		if (!pfn_valid(pfn + i)) {
-			WARN_ON_ONCE(1);
-			break;
-		} else {
-			int level;
-			pte_t *pte = lookup_address(addr + i*PAGE_SIZE, &level);
-			BUG_ON(pte && pte_none(*pte));
-		}
-	}
+	unsigned long addr = (unsigned long)page_address(page);
 
-	return change_page_attr(virt_to_page(addr), i, prot);
+	return change_page_attr_addr(addr, numpages, prot);
 }
+EXPORT_SYMBOL(change_page_attr);
 
 static void flush_kernel_map(void *arg)
 {
-- 
cgit v1.2.3-59-g8ed1b


From 6050be70d8f7e3952fcc31fcf1fa8a7cbaa18312 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:03 +0100
Subject: x86: prepare for pageattr.c unification

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 8 --------
 1 file changed, 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index e1c860800ff1..0246511be99d 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -9,14 +9,6 @@
 #include <linux/slab.h>
 #include <linux/mm.h>
 
-void clflush_cache_range(void *addr, int size)
-{
-	int i;
-
-	for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
-		clflush(addr+i);
-}
-
 #include <asm/processor.h>
 #include <asm/tlbflush.h>
 #include <asm/sections.h>
-- 
cgit v1.2.3-59-g8ed1b


From b195bc00ef8c2ccf8cc744e5ff9470cb08b45d76 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:03 +0100
Subject: x86: unify pageattr_32.c and pageattr_64.c

unify the now perfectly identical pageattr_32/64.c files - no code changed.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/Makefile_32   |   2 +-
 arch/x86/mm/Makefile_64   |   2 +-
 arch/x86/mm/pageattr.c    | 283 +++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/mm/pageattr_32.c | 283 ---------------------------------------------
 arch/x86/mm/pageattr_64.c | 284 ----------------------------------------------
 5 files changed, 285 insertions(+), 569 deletions(-)
 create mode 100644 arch/x86/mm/pageattr.c
 delete mode 100644 arch/x86/mm/pageattr_32.c
 delete mode 100644 arch/x86/mm/pageattr_64.c

(limited to 'arch')

diff --git a/arch/x86/mm/Makefile_32 b/arch/x86/mm/Makefile_32
index 1aeba3bf34bd..424e5a862271 100644
--- a/arch/x86/mm/Makefile_32
+++ b/arch/x86/mm/Makefile_32
@@ -2,7 +2,7 @@
 # Makefile for the linux i386-specific parts of the memory manager.
 #
 
-obj-y	:= init_32.o pgtable_32.o fault_32.o ioremap_32.o extable.o pageattr_32.o mmap.o
+obj-y	:= init_32.o pgtable_32.o fault_32.o ioremap_32.o extable.o pageattr.o mmap.o
 
 obj-$(CONFIG_CPA_DEBUG) += pageattr-test.o
 obj-$(CONFIG_NUMA) += discontig_32.o
diff --git a/arch/x86/mm/Makefile_64 b/arch/x86/mm/Makefile_64
index cb723167631b..043584478457 100644
--- a/arch/x86/mm/Makefile_64
+++ b/arch/x86/mm/Makefile_64
@@ -2,7 +2,7 @@
 # Makefile for the linux x86_64-specific parts of the memory manager.
 #
 
-obj-y	 := init_64.o fault_64.o ioremap_64.o extable.o pageattr_64.o mmap.o
+obj-y	 := init_64.o fault_64.o ioremap_64.o extable.o pageattr.o mmap.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_NUMA) += numa_64.o
 obj-$(CONFIG_K8_NUMA) += k8topology_64.o
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
new file mode 100644
index 000000000000..251613449dd6
--- /dev/null
+++ b/arch/x86/mm/pageattr.c
@@ -0,0 +1,283 @@
+/*
+ * Copyright 2002 Andi Kleen, SuSE Labs.
+ * Thanks to Ben LaHaise for precious feedback.
+ */
+
+#include <linux/highmem.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+
+#include <asm/processor.h>
+#include <asm/tlbflush.h>
+#include <asm/sections.h>
+#include <asm/uaccess.h>
+#include <asm/pgalloc.h>
+
+pte_t *lookup_address(unsigned long address, int *level)
+{
+	pgd_t *pgd = pgd_offset_k(address);
+	pud_t *pud;
+	pmd_t *pmd;
+
+	if (pgd_none(*pgd))
+		return NULL;
+	pud = pud_offset(pgd, address);
+	if (pud_none(*pud))
+		return NULL;
+	pmd = pmd_offset(pud, address);
+	if (pmd_none(*pmd))
+		return NULL;
+	*level = 3;
+	if (pmd_large(*pmd))
+		return (pte_t *)pmd;
+	*level = 4;
+
+	return pte_offset_kernel(pmd, address);
+}
+
+static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
+{
+	/* change init_mm */
+	set_pte_atomic(kpte, pte);
+#ifdef CONFIG_X86_32
+	if (SHARED_KERNEL_PMD)
+		return;
+	{
+		struct page *page;
+
+		for (page = pgd_list; page; page = (struct page *)page->index) {
+			pgd_t *pgd;
+			pud_t *pud;
+			pmd_t *pmd;
+
+			pgd = (pgd_t *)page_address(page) + pgd_index(address);
+			pud = pud_offset(pgd, address);
+			pmd = pmd_offset(pud, address);
+			set_pte_atomic((pte_t *)pmd, pte);
+		}
+	}
+#endif
+}
+
+static int split_large_page(pte_t *kpte, unsigned long address)
+{
+	pgprot_t ref_prot = pte_pgprot(pte_clrhuge(*kpte));
+	gfp_t gfp_flags = GFP_KERNEL;
+	unsigned long flags;
+	unsigned long addr;
+	pte_t *pbase, *tmp;
+	struct page *base;
+	int i, level;
+
+#ifdef CONFIG_DEBUG_PAGEALLOC
+	gfp_flags = GFP_ATOMIC;
+#endif
+	base = alloc_pages(gfp_flags, 0);
+	if (!base)
+		return -ENOMEM;
+
+	spin_lock_irqsave(&pgd_lock, flags);
+	/*
+	 * Check for races, another CPU might have split this page
+	 * up for us already:
+	 */
+	tmp = lookup_address(address, &level);
+	if (tmp != kpte) {
+		WARN_ON_ONCE(1);
+		goto out_unlock;
+	}
+
+	address = __pa(address);
+	addr = address & LARGE_PAGE_MASK;
+	pbase = (pte_t *)page_address(base);
+#ifdef CONFIG_X86_32
+	paravirt_alloc_pt(&init_mm, page_to_pfn(base));
+#endif
+
+	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
+		set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));
+
+	/*
+	 * Install the new, split up pagetable:
+	 */
+	__set_pmd_pte(kpte, address, mk_pte(base, ref_prot));
+	base = NULL;
+
+out_unlock:
+	spin_unlock_irqrestore(&pgd_lock, flags);
+
+	if (base)
+		__free_pages(base, 0);
+
+	return 0;
+}
+
+static int
+__change_page_attr(unsigned long address, struct page *page, pgprot_t prot)
+{
+	struct page *kpte_page;
+	int level, err = 0;
+	pte_t *kpte;
+
+	BUG_ON(PageHighMem(page));
+
+repeat:
+	kpte = lookup_address(address, &level);
+	if (!kpte)
+		return -EINVAL;
+
+	kpte_page = virt_to_page(kpte);
+	BUG_ON(PageLRU(kpte_page));
+	BUG_ON(PageCompound(kpte_page));
+
+	/*
+	 * Better fail early if someone sets the kernel text to NX.
+	 * Does not cover __inittext
+	 */
+	BUG_ON(address >= (unsigned long)&_text &&
+		address < (unsigned long)&_etext &&
+	       (pgprot_val(prot) & _PAGE_NX));
+
+	if (level == 4) {
+		set_pte_atomic(kpte, mk_pte(page, canon_pgprot(prot)));
+	} else {
+		err = split_large_page(kpte, address);
+		if (!err)
+			goto repeat;
+	}
+	return err;
+}
+
+/**
+ * change_page_attr_addr - Change page table attributes in linear mapping
+ * @address: Virtual address in linear mapping.
+ * @numpages: Number of pages to change
+ * @prot:    New page table attribute (PAGE_*)
+ *
+ * Change page attributes of a page in the direct mapping. This is a variant
+ * of change_page_attr() that also works on memory holes that do not have
+ * mem_map entry (pfn_valid() is false).
+ *
+ * See change_page_attr() documentation for more details.
+ */
+
+int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
+{
+	int err = 0, kernel_map = 0, i;
+
+#ifdef CONFIG_X86_64
+	if (address >= __START_KERNEL_map &&
+			address < __START_KERNEL_map + KERNEL_TEXT_SIZE) {
+
+		address = (unsigned long)__va(__pa(address));
+		kernel_map = 1;
+	}
+#endif
+
+	for (i = 0; i < numpages; i++, address += PAGE_SIZE) {
+		unsigned long pfn = __pa(address) >> PAGE_SHIFT;
+
+		if (!kernel_map || pte_present(pfn_pte(0, prot))) {
+			err = __change_page_attr(address, pfn_to_page(pfn), prot);
+			if (err)
+				break;
+		}
+#ifdef CONFIG_X86_64
+		/*
+		 * Handle kernel mapping too which aliases part of
+		 * lowmem:
+		 */
+		if (__pa(address) < KERNEL_TEXT_SIZE) {
+			unsigned long addr2;
+			pgprot_t prot2;
+
+			addr2 = __START_KERNEL_map + __pa(address);
+			/* Make sure the kernel mappings stay executable */
+			prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
+			err = __change_page_attr(addr2, pfn_to_page(pfn), prot2);
+		}
+#endif
+	}
+
+	return err;
+}
+
+/**
+ * change_page_attr - Change page table attributes in the linear mapping.
+ * @page: First page to change
+ * @numpages: Number of pages to change
+ * @prot: New protection/caching type (PAGE_*)
+ *
+ * Returns 0 on success, otherwise a negated errno.
+ *
+ * This should be used when a page is mapped with a different caching policy
+ * than write-back somewhere - some CPUs do not like it when mappings with
+ * different caching policies exist. This changes the page attributes of the
+ * in kernel linear mapping too.
+ *
+ * Caller must call global_flush_tlb() later to make the changes active.
+ *
+ * The caller needs to ensure that there are no conflicting mappings elsewhere
+ * (e.g. in user space) * This function only deals with the kernel linear map.
+ *
+ * For MMIO areas without mem_map use change_page_attr_addr() instead.
+ */
+int change_page_attr(struct page *page, int numpages, pgprot_t prot)
+{
+	unsigned long addr = (unsigned long)page_address(page);
+
+	return change_page_attr_addr(addr, numpages, prot);
+}
+EXPORT_SYMBOL(change_page_attr);
+
+static void flush_kernel_map(void *arg)
+{
+	/*
+	 * Flush all to work around Errata in early athlons regarding
+	 * large page flushing.
+	 */
+	__flush_tlb_all();
+
+	if (boot_cpu_data.x86_model >= 4)
+		wbinvd();
+}
+
+void global_flush_tlb(void)
+{
+	BUG_ON(irqs_disabled());
+
+	on_each_cpu(flush_kernel_map, NULL, 1, 1);
+}
+EXPORT_SYMBOL(global_flush_tlb);
+
+#ifdef CONFIG_DEBUG_PAGEALLOC
+void kernel_map_pages(struct page *page, int numpages, int enable)
+{
+	if (PageHighMem(page))
+		return;
+	if (!enable) {
+		debug_check_no_locks_freed(page_address(page),
+					   numpages * PAGE_SIZE);
+	}
+
+	/*
+	 * If page allocator is not up yet then do not call c_p_a():
+	 */
+	if (!debug_pagealloc_enabled)
+		return;
+
+	/*
+	 * the return value is ignored - the calls cannot fail,
+	 * large pages are disabled at boot time.
+	 */
+	change_page_attr(page, numpages, enable ? PAGE_KERNEL : __pgprot(0));
+
+	/*
+	 * we should perform an IPI and flush all tlbs,
+	 * but that can deadlock->flush only current cpu.
+	 */
+	__flush_tlb_all();
+}
+#endif
diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
deleted file mode 100644
index 251613449dd6..000000000000
--- a/arch/x86/mm/pageattr_32.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * Copyright 2002 Andi Kleen, SuSE Labs.
- * Thanks to Ben LaHaise for precious feedback.
- */
-
-#include <linux/highmem.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-
-#include <asm/processor.h>
-#include <asm/tlbflush.h>
-#include <asm/sections.h>
-#include <asm/uaccess.h>
-#include <asm/pgalloc.h>
-
-pte_t *lookup_address(unsigned long address, int *level)
-{
-	pgd_t *pgd = pgd_offset_k(address);
-	pud_t *pud;
-	pmd_t *pmd;
-
-	if (pgd_none(*pgd))
-		return NULL;
-	pud = pud_offset(pgd, address);
-	if (pud_none(*pud))
-		return NULL;
-	pmd = pmd_offset(pud, address);
-	if (pmd_none(*pmd))
-		return NULL;
-	*level = 3;
-	if (pmd_large(*pmd))
-		return (pte_t *)pmd;
-	*level = 4;
-
-	return pte_offset_kernel(pmd, address);
-}
-
-static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
-{
-	/* change init_mm */
-	set_pte_atomic(kpte, pte);
-#ifdef CONFIG_X86_32
-	if (SHARED_KERNEL_PMD)
-		return;
-	{
-		struct page *page;
-
-		for (page = pgd_list; page; page = (struct page *)page->index) {
-			pgd_t *pgd;
-			pud_t *pud;
-			pmd_t *pmd;
-
-			pgd = (pgd_t *)page_address(page) + pgd_index(address);
-			pud = pud_offset(pgd, address);
-			pmd = pmd_offset(pud, address);
-			set_pte_atomic((pte_t *)pmd, pte);
-		}
-	}
-#endif
-}
-
-static int split_large_page(pte_t *kpte, unsigned long address)
-{
-	pgprot_t ref_prot = pte_pgprot(pte_clrhuge(*kpte));
-	gfp_t gfp_flags = GFP_KERNEL;
-	unsigned long flags;
-	unsigned long addr;
-	pte_t *pbase, *tmp;
-	struct page *base;
-	int i, level;
-
-#ifdef CONFIG_DEBUG_PAGEALLOC
-	gfp_flags = GFP_ATOMIC;
-#endif
-	base = alloc_pages(gfp_flags, 0);
-	if (!base)
-		return -ENOMEM;
-
-	spin_lock_irqsave(&pgd_lock, flags);
-	/*
-	 * Check for races, another CPU might have split this page
-	 * up for us already:
-	 */
-	tmp = lookup_address(address, &level);
-	if (tmp != kpte) {
-		WARN_ON_ONCE(1);
-		goto out_unlock;
-	}
-
-	address = __pa(address);
-	addr = address & LARGE_PAGE_MASK;
-	pbase = (pte_t *)page_address(base);
-#ifdef CONFIG_X86_32
-	paravirt_alloc_pt(&init_mm, page_to_pfn(base));
-#endif
-
-	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
-		set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));
-
-	/*
-	 * Install the new, split up pagetable:
-	 */
-	__set_pmd_pte(kpte, address, mk_pte(base, ref_prot));
-	base = NULL;
-
-out_unlock:
-	spin_unlock_irqrestore(&pgd_lock, flags);
-
-	if (base)
-		__free_pages(base, 0);
-
-	return 0;
-}
-
-static int
-__change_page_attr(unsigned long address, struct page *page, pgprot_t prot)
-{
-	struct page *kpte_page;
-	int level, err = 0;
-	pte_t *kpte;
-
-	BUG_ON(PageHighMem(page));
-
-repeat:
-	kpte = lookup_address(address, &level);
-	if (!kpte)
-		return -EINVAL;
-
-	kpte_page = virt_to_page(kpte);
-	BUG_ON(PageLRU(kpte_page));
-	BUG_ON(PageCompound(kpte_page));
-
-	/*
-	 * Better fail early if someone sets the kernel text to NX.
-	 * Does not cover __inittext
-	 */
-	BUG_ON(address >= (unsigned long)&_text &&
-		address < (unsigned long)&_etext &&
-	       (pgprot_val(prot) & _PAGE_NX));
-
-	if (level == 4) {
-		set_pte_atomic(kpte, mk_pte(page, canon_pgprot(prot)));
-	} else {
-		err = split_large_page(kpte, address);
-		if (!err)
-			goto repeat;
-	}
-	return err;
-}
-
-/**
- * change_page_attr_addr - Change page table attributes in linear mapping
- * @address: Virtual address in linear mapping.
- * @numpages: Number of pages to change
- * @prot:    New page table attribute (PAGE_*)
- *
- * Change page attributes of a page in the direct mapping. This is a variant
- * of change_page_attr() that also works on memory holes that do not have
- * mem_map entry (pfn_valid() is false).
- *
- * See change_page_attr() documentation for more details.
- */
-
-int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
-{
-	int err = 0, kernel_map = 0, i;
-
-#ifdef CONFIG_X86_64
-	if (address >= __START_KERNEL_map &&
-			address < __START_KERNEL_map + KERNEL_TEXT_SIZE) {
-
-		address = (unsigned long)__va(__pa(address));
-		kernel_map = 1;
-	}
-#endif
-
-	for (i = 0; i < numpages; i++, address += PAGE_SIZE) {
-		unsigned long pfn = __pa(address) >> PAGE_SHIFT;
-
-		if (!kernel_map || pte_present(pfn_pte(0, prot))) {
-			err = __change_page_attr(address, pfn_to_page(pfn), prot);
-			if (err)
-				break;
-		}
-#ifdef CONFIG_X86_64
-		/*
-		 * Handle kernel mapping too which aliases part of
-		 * lowmem:
-		 */
-		if (__pa(address) < KERNEL_TEXT_SIZE) {
-			unsigned long addr2;
-			pgprot_t prot2;
-
-			addr2 = __START_KERNEL_map + __pa(address);
-			/* Make sure the kernel mappings stay executable */
-			prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
-			err = __change_page_attr(addr2, pfn_to_page(pfn), prot2);
-		}
-#endif
-	}
-
-	return err;
-}
-
-/**
- * change_page_attr - Change page table attributes in the linear mapping.
- * @page: First page to change
- * @numpages: Number of pages to change
- * @prot: New protection/caching type (PAGE_*)
- *
- * Returns 0 on success, otherwise a negated errno.
- *
- * This should be used when a page is mapped with a different caching policy
- * than write-back somewhere - some CPUs do not like it when mappings with
- * different caching policies exist. This changes the page attributes of the
- * in kernel linear mapping too.
- *
- * Caller must call global_flush_tlb() later to make the changes active.
- *
- * The caller needs to ensure that there are no conflicting mappings elsewhere
- * (e.g. in user space) * This function only deals with the kernel linear map.
- *
- * For MMIO areas without mem_map use change_page_attr_addr() instead.
- */
-int change_page_attr(struct page *page, int numpages, pgprot_t prot)
-{
-	unsigned long addr = (unsigned long)page_address(page);
-
-	return change_page_attr_addr(addr, numpages, prot);
-}
-EXPORT_SYMBOL(change_page_attr);
-
-static void flush_kernel_map(void *arg)
-{
-	/*
-	 * Flush all to work around Errata in early athlons regarding
-	 * large page flushing.
-	 */
-	__flush_tlb_all();
-
-	if (boot_cpu_data.x86_model >= 4)
-		wbinvd();
-}
-
-void global_flush_tlb(void)
-{
-	BUG_ON(irqs_disabled());
-
-	on_each_cpu(flush_kernel_map, NULL, 1, 1);
-}
-EXPORT_SYMBOL(global_flush_tlb);
-
-#ifdef CONFIG_DEBUG_PAGEALLOC
-void kernel_map_pages(struct page *page, int numpages, int enable)
-{
-	if (PageHighMem(page))
-		return;
-	if (!enable) {
-		debug_check_no_locks_freed(page_address(page),
-					   numpages * PAGE_SIZE);
-	}
-
-	/*
-	 * If page allocator is not up yet then do not call c_p_a():
-	 */
-	if (!debug_pagealloc_enabled)
-		return;
-
-	/*
-	 * the return value is ignored - the calls cannot fail,
-	 * large pages are disabled at boot time.
-	 */
-	change_page_attr(page, numpages, enable ? PAGE_KERNEL : __pgprot(0));
-
-	/*
-	 * we should perform an IPI and flush all tlbs,
-	 * but that can deadlock->flush only current cpu.
-	 */
-	__flush_tlb_all();
-}
-#endif
diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
deleted file mode 100644
index 0246511be99d..000000000000
--- a/arch/x86/mm/pageattr_64.c
+++ /dev/null
@@ -1,284 +0,0 @@
-/*
- * Copyright 2002 Andi Kleen, SuSE Labs.
- * Thanks to Ben LaHaise for precious feedback.
- */
-
-#include <linux/highmem.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-
-#include <asm/processor.h>
-#include <asm/tlbflush.h>
-#include <asm/sections.h>
-#include <asm/uaccess.h>
-#include <asm/pgalloc.h>
-
-pte_t *lookup_address(unsigned long address, int *level)
-{
-	pgd_t *pgd = pgd_offset_k(address);
-	pud_t *pud;
-	pmd_t *pmd;
-
-	if (pgd_none(*pgd))
-		return NULL;
-	pud = pud_offset(pgd, address);
-	if (pud_none(*pud))
-		return NULL;
-	pmd = pmd_offset(pud, address);
-	if (pmd_none(*pmd))
-		return NULL;
-	*level = 3;
-	if (pmd_large(*pmd))
-		return (pte_t *)pmd;
-	*level = 4;
-
-	return pte_offset_kernel(pmd, address);
-}
-
-static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
-{
-	/* change init_mm */
-	set_pte_atomic(kpte, pte);
-#ifdef CONFIG_X86_32
-	if (SHARED_KERNEL_PMD)
-		return;
-	{
-		struct page *page;
-
-		for (page = pgd_list; page; page = (struct page *)page->index) {
-			pgd_t *pgd;
-			pud_t *pud;
-			pmd_t *pmd;
-
-			pgd = (pgd_t *)page_address(page) + pgd_index(address);
-			pud = pud_offset(pgd, address);
-			pmd = pmd_offset(pud, address);
-			set_pte_atomic((pte_t *)pmd, pte);
-		}
-	}
-#endif
-}
-
-static int split_large_page(pte_t *kpte, unsigned long address)
-{
-	pgprot_t ref_prot = pte_pgprot(pte_clrhuge(*kpte));
-	gfp_t gfp_flags = GFP_KERNEL;
-	unsigned long flags;
-	unsigned long addr;
-	pte_t *pbase, *tmp;
-	struct page *base;
-	int i, level;
-
-
-#ifdef CONFIG_DEBUG_PAGEALLOC
-	gfp_flags = GFP_ATOMIC;
-#endif
-	base = alloc_pages(gfp_flags, 0);
-	if (!base)
-		return -ENOMEM;
-
-	spin_lock_irqsave(&pgd_lock, flags);
-	/*
-	 * Check for races, another CPU might have split this page
-	 * up for us already:
-	 */
-	tmp = lookup_address(address, &level);
-	if (tmp != kpte) {
-		WARN_ON_ONCE(1);
-		goto out_unlock;
-	}
-
-	address = __pa(address);
-	addr = address & LARGE_PAGE_MASK;
-	pbase = (pte_t *)page_address(base);
-#ifdef CONFIG_X86_32
-	paravirt_alloc_pt(&init_mm, page_to_pfn(base));
-#endif
-
-	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
-		set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));
-
-	/*
-	 * Install the new, split up pagetable:
-	 */
-	__set_pmd_pte(kpte, address, mk_pte(base, ref_prot));
-	base = NULL;
-
-out_unlock:
-	spin_unlock_irqrestore(&pgd_lock, flags);
-
-	if (base)
-		__free_pages(base, 0);
-
-	return 0;
-}
-
-static int
-__change_page_attr(unsigned long address, struct page *page, pgprot_t prot)
-{
-	struct page *kpte_page;
-	int level, err = 0;
-	pte_t *kpte;
-
-	BUG_ON(PageHighMem(page));
-
-repeat:
-	kpte = lookup_address(address, &level);
-	if (!kpte)
-		return -EINVAL;
-
-	kpte_page = virt_to_page(kpte);
-	BUG_ON(PageLRU(kpte_page));
-	BUG_ON(PageCompound(kpte_page));
-
-	/*
-	 * Better fail early if someone sets the kernel text to NX.
-	 * Does not cover __inittext
-	 */
-	BUG_ON(address >= (unsigned long)&_text &&
-		address < (unsigned long)&_etext &&
-	       (pgprot_val(prot) & _PAGE_NX));
-
-	if (level == 4) {
-		set_pte_atomic(kpte, mk_pte(page, canon_pgprot(prot)));
-	} else {
-		err = split_large_page(kpte, address);
-		if (!err)
-			goto repeat;
-	}
-	return err;
-}
-
-/**
- * change_page_attr_addr - Change page table attributes in linear mapping
- * @address: Virtual address in linear mapping.
- * @numpages: Number of pages to change
- * @prot:    New page table attribute (PAGE_*)
- *
- * Change page attributes of a page in the direct mapping. This is a variant
- * of change_page_attr() that also works on memory holes that do not have
- * mem_map entry (pfn_valid() is false).
- *
- * See change_page_attr() documentation for more details.
- */
-
-int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
-{
-	int err = 0, kernel_map = 0, i;
-
-#ifdef CONFIG_X86_64
-	if (address >= __START_KERNEL_map &&
-			address < __START_KERNEL_map + KERNEL_TEXT_SIZE) {
-
-		address = (unsigned long)__va(__pa(address));
-		kernel_map = 1;
-	}
-#endif
-
-	for (i = 0; i < numpages; i++, address += PAGE_SIZE) {
-		unsigned long pfn = __pa(address) >> PAGE_SHIFT;
-
-		if (!kernel_map || pte_present(pfn_pte(0, prot))) {
-			err = __change_page_attr(address, pfn_to_page(pfn), prot);
-			if (err)
-				break;
-		}
-#ifdef CONFIG_X86_64
-		/*
-		 * Handle kernel mapping too which aliases part of
-		 * lowmem:
-		 */
-		if (__pa(address) < KERNEL_TEXT_SIZE) {
-			unsigned long addr2;
-			pgprot_t prot2;
-
-			addr2 = __START_KERNEL_map + __pa(address);
-			/* Make sure the kernel mappings stay executable */
-			prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
-			err = __change_page_attr(addr2, pfn_to_page(pfn), prot2);
-		}
-#endif
-	}
-
-	return err;
-}
-
-/**
- * change_page_attr - Change page table attributes in the linear mapping.
- * @page: First page to change
- * @numpages: Number of pages to change
- * @prot: New protection/caching type (PAGE_*)
- *
- * Returns 0 on success, otherwise a negated errno.
- *
- * This should be used when a page is mapped with a different caching policy
- * than write-back somewhere - some CPUs do not like it when mappings with
- * different caching policies exist. This changes the page attributes of the
- * in kernel linear mapping too.
- *
- * Caller must call global_flush_tlb() later to make the changes active.
- *
- * The caller needs to ensure that there are no conflicting mappings elsewhere
- * (e.g. in user space) * This function only deals with the kernel linear map.
- *
- * For MMIO areas without mem_map use change_page_attr_addr() instead.
- */
-int change_page_attr(struct page *page, int numpages, pgprot_t prot)
-{
-	unsigned long addr = (unsigned long)page_address(page);
-
-	return change_page_attr_addr(addr, numpages, prot);
-}
-EXPORT_SYMBOL(change_page_attr);
-
-static void flush_kernel_map(void *arg)
-{
-	/*
-	 * Flush all to work around Errata in early athlons regarding
-	 * large page flushing.
-	 */
-	__flush_tlb_all();
-
-	if (boot_cpu_data.x86_model >= 4)
-		wbinvd();
-}
-
-void global_flush_tlb(void)
-{
-	BUG_ON(irqs_disabled());
-
-	on_each_cpu(flush_kernel_map, NULL, 1, 1);
-}
-EXPORT_SYMBOL(global_flush_tlb);
-
-#ifdef CONFIG_DEBUG_PAGEALLOC
-void kernel_map_pages(struct page *page, int numpages, int enable)
-{
-	if (PageHighMem(page))
-		return;
-	if (!enable) {
-		debug_check_no_locks_freed(page_address(page),
-					   numpages * PAGE_SIZE);
-	}
-
-	/*
-	 * If page allocator is not up yet then do not call c_p_a():
-	 */
-	if (!debug_pagealloc_enabled)
-		return;
-
-	/*
-	 * the return value is ignored - the calls cannot fail,
-	 * large pages are disabled at boot time.
-	 */
-	change_page_attr(page, numpages, enable ? PAGE_KERNEL : __pgprot(0));
-
-	/*
-	 * we should perform an IPI and flush all tlbs,
-	 * but that can deadlock->flush only current cpu.
-	 */
-	__flush_tlb_all();
-}
-#endif
-- 
cgit v1.2.3-59-g8ed1b


From 4554ab95c2b9d6b0ee9cf2a7ed3df665422acebb Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:03 +0100
Subject: x86: re-add clflush_cache_range()

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 251613449dd6..510ff4091667 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -9,6 +9,14 @@
 #include <linux/slab.h>
 #include <linux/mm.h>
 
+void clflush_cache_range(void *addr, int size)
+{
+	int i;
+
+	for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
+		clflush(addr+i);
+}
+
 #include <asm/processor.h>
 #include <asm/tlbflush.h>
 #include <asm/sections.h>
-- 
cgit v1.2.3-59-g8ed1b


From e4b71dcf54fa90fc30fb901bbce7e38a46467af7 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:04 +0100
Subject: x86: clean up arch/x86/mm/pageattr.c

do some leftover cleanups in the now unified arch/x86/mm/pageattr.c
file.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr.c       | 13 +++++--------
 include/asm-x86/pgtable_64.h |  2 ++
 2 files changed, 7 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 510ff4091667..a270f9ccebfb 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -2,7 +2,6 @@
  * Copyright 2002 Andi Kleen, SuSE Labs.
  * Thanks to Ben LaHaise for precious feedback.
  */
-
 #include <linux/highmem.h>
 #include <linux/module.h>
 #include <linux/sched.h>
@@ -50,9 +49,7 @@ static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 	/* change init_mm */
 	set_pte_atomic(kpte, pte);
 #ifdef CONFIG_X86_32
-	if (SHARED_KERNEL_PMD)
-		return;
-	{
+	if (!SHARED_KERNEL_PMD) {
 		struct page *page;
 
 		for (page = pgd_list; page; page = (struct page *)page->index) {
@@ -277,14 +274,14 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
 		return;
 
 	/*
-	 * the return value is ignored - the calls cannot fail,
-	 * large pages are disabled at boot time.
+	 * The return value is ignored - the calls cannot fail,
+	 * large pages are disabled at boot time:
 	 */
 	change_page_attr(page, numpages, enable ? PAGE_KERNEL : __pgprot(0));
 
 	/*
-	 * we should perform an IPI and flush all tlbs,
-	 * but that can deadlock->flush only current cpu.
+	 * We should perform an IPI and flush all tlbs,
+	 * but that can deadlock->flush only current cpu:
 	 */
 	__flush_tlb_all();
 }
diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index 223b0032bab5..faa6a96c2a5c 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -25,6 +25,8 @@ extern void clear_kernel_mapping(unsigned long addr, unsigned long size);
 
 #endif /* !__ASSEMBLY__ */
 
+#define SHARED_KERNEL_PMD	1
+
 /*
  * PGDIR_SHIFT determines what a top-level page table entry can map
  */
-- 
cgit v1.2.3-59-g8ed1b


From 30551bb3ce9257a2352b3cb4e45010d415cc0ad5 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:04 +0100
Subject: x86: add PG_LEVEL enum

this way PG_LEVEL_1GB will be an easy change.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr-test.c | 4 +---
 arch/x86/mm/pageattr.c      | 9 ++++++---
 include/asm-x86/pgtable.h   | 6 ++++++
 3 files changed, 13 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 6cc106b388a5..d7a93008cc12 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -16,14 +16,12 @@
 
 enum {
 	NTEST			= 400,
+	LOWEST_LEVEL		= PG_LEVEL_4K,
 #ifdef CONFIG_X86_64
-	LOWEST_LEVEL		= 4,
 	LPS			= (1 << PMD_SHIFT),
 #elif defined(CONFIG_X86_PAE)
-	LOWEST_LEVEL		= 4,
 	LPS			= (1 << PMD_SHIFT),
 #else
-	LOWEST_LEVEL		= 4, /* lookup_address lies here */
 	LPS			= (1 << 22),
 #endif
 	GPS			= (1<<30)
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index a270f9ccebfb..4589a1382fa1 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -28,6 +28,8 @@ pte_t *lookup_address(unsigned long address, int *level)
 	pud_t *pud;
 	pmd_t *pmd;
 
+	*level = PG_LEVEL_NONE;
+
 	if (pgd_none(*pgd))
 		return NULL;
 	pud = pud_offset(pgd, address);
@@ -36,11 +38,12 @@ pte_t *lookup_address(unsigned long address, int *level)
 	pmd = pmd_offset(pud, address);
 	if (pmd_none(*pmd))
 		return NULL;
-	*level = 3;
+
+	*level = PG_LEVEL_2M;
 	if (pmd_large(*pmd))
 		return (pte_t *)pmd;
-	*level = 4;
 
+	*level = PG_LEVEL_4K;
 	return pte_offset_kernel(pmd, address);
 }
 
@@ -145,7 +148,7 @@ repeat:
 		address < (unsigned long)&_etext &&
 	       (pgprot_val(prot) & _PAGE_NX));
 
-	if (level == 4) {
+	if (level == PG_LEVEL_4K) {
 		set_pte_atomic(kpte, mk_pte(page, canon_pgprot(prot)));
 	} else {
 		err = split_large_page(kpte, address);
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 4409dabe31c6..7aa34c8eb220 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -234,6 +234,12 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 
 #ifndef __ASSEMBLY__
 
+enum {
+	PG_LEVEL_NONE,
+	PG_LEVEL_4K,
+	PG_LEVEL_2M,
+};
+
 /*
  * Helper function that returns the kernel pagetable entry controlling
  * the virtual address 'address'. NULL means no pagetable entry present.
-- 
cgit v1.2.3-59-g8ed1b


From 687c4825b6ccab69b85f266ae925500b27aab6c2 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:04 +0100
Subject: x86: keep the BIOS area executable

keep the BIOS area executable.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr.c | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 4589a1382fa1..effcd78d5f40 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -22,6 +22,27 @@ void clflush_cache_range(void *addr, int size)
 #include <asm/uaccess.h>
 #include <asm/pgalloc.h>
 
+/*
+ * We allow the BIOS range to be executable:
+ */
+#define BIOS_BEGIN		0x000a0000
+#define BIOS_END		0x00100000
+
+static inline pgprot_t check_exec(pgprot_t prot, unsigned long address)
+{
+	if (__pa(address) >= BIOS_BEGIN && __pa(address) < BIOS_END)
+		pgprot_val(prot) &= ~_PAGE_NX;
+	/*
+	 * Better fail early if someone sets the kernel text to NX.
+	 * Does not cover __inittext
+	 */
+	BUG_ON(address >= (unsigned long)&_text &&
+		address < (unsigned long)&_etext &&
+	       (pgprot_val(prot) & _PAGE_NX));
+
+	return prot;
+}
+
 pte_t *lookup_address(unsigned long address, int *level)
 {
 	pgd_t *pgd = pgd_offset_k(address);
@@ -140,13 +161,7 @@ repeat:
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
 
-	/*
-	 * Better fail early if someone sets the kernel text to NX.
-	 * Does not cover __inittext
-	 */
-	BUG_ON(address >= (unsigned long)&_text &&
-		address < (unsigned long)&_etext &&
-	       (pgprot_val(prot) & _PAGE_NX));
+	prot = check_exec(prot, address);
 
 	if (level == PG_LEVEL_4K) {
 		set_pte_atomic(kpte, mk_pte(page, canon_pgprot(prot)));
-- 
cgit v1.2.3-59-g8ed1b


From 8192206df093e8fc607b5072ce71a930d44f8638 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:04 +0100
Subject: x86: change cpa to pfn based

change CPA to pfn based.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index effcd78d5f40..d18c41d752f3 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -3,6 +3,7 @@
  * Thanks to Ben LaHaise for precious feedback.
  */
 #include <linux/highmem.h>
+#include <linux/bootmem.h>
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
@@ -144,13 +145,15 @@ out_unlock:
 }
 
 static int
-__change_page_attr(unsigned long address, struct page *page, pgprot_t prot)
+__change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot)
 {
 	struct page *kpte_page;
 	int level, err = 0;
 	pte_t *kpte;
 
-	BUG_ON(PageHighMem(page));
+#ifdef CONFIG_X86_32
+	BUG_ON(pfn > max_low_pfn);
+#endif
 
 repeat:
 	kpte = lookup_address(address, &level);
@@ -164,7 +167,7 @@ repeat:
 	prot = check_exec(prot, address);
 
 	if (level == PG_LEVEL_4K) {
-		set_pte_atomic(kpte, mk_pte(page, canon_pgprot(prot)));
+		set_pte_atomic(kpte, pfn_pte(pfn, canon_pgprot(prot)));
 	} else {
 		err = split_large_page(kpte, address);
 		if (!err)
@@ -203,7 +206,7 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 		unsigned long pfn = __pa(address) >> PAGE_SHIFT;
 
 		if (!kernel_map || pte_present(pfn_pte(0, prot))) {
-			err = __change_page_attr(address, pfn_to_page(pfn), prot);
+			err = __change_page_attr(address, pfn, prot);
 			if (err)
 				break;
 		}
@@ -219,7 +222,7 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 			addr2 = __START_KERNEL_map + __pa(address);
 			/* Make sure the kernel mappings stay executable */
 			prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
-			err = __change_page_attr(addr2, pfn_to_page(pfn), prot2);
+			err = __change_page_attr(addr2, pfn, prot2);
 		}
 #endif
 	}
-- 
cgit v1.2.3-59-g8ed1b


From 4c881ca1819da180b047f87eedeb9a5957918705 Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:34:04 +0100
Subject: x86: fix NX bit handling in change_page_attr()

This patch fixes a bug of change_page_attr/change_page_attr_addr on
Intel i386/x86_64 CPUs.  After changing page attribute to be
executable with these functions, the page remains un-executable on
Intel i386/x86_64 CPU.  Because on Intel i386/x86_64 CPU, only if the
"NX" bits of all three level page tables are cleared (PAE is enabled),
the corresponding page is executable (refer to section 4.13.2 of Intel
64 and IA-32 Architectures Software Developer's Manual).  So, the bug
is fixed through clearing the "NX" bit of PMD when splitting the huge
PMD.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index d18c41d752f3..cbe8e9223bee 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -130,8 +130,13 @@ static int split_large_page(pte_t *kpte, unsigned long address)
 		set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));
 
 	/*
-	 * Install the new, split up pagetable:
+	 * Install the new, split up pagetable. Important detail here:
+	 *
+	 * On Intel the NX bit of all levels must be cleared to make a
+	 * page executable. See section 4.13.2 of Intel 64 and IA-32
+	 * Architectures Software Developer's Manual).
 	 */
+	ref_prot = pte_pgprot(pte_mkexec(pte_clrhuge(*kpte)));
 	__set_pmd_pte(kpte, address, mk_pte(base, ref_prot));
 	base = NULL;
 
-- 
cgit v1.2.3-59-g8ed1b


From 1c17f4d615f34a4ecfcf9132d643126b226f5e79 Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:34:04 +0100
Subject: x86: ioremap_nocache fix

This patch fixes a bug of ioremap_nocache. ioremap_nocache() will call
__ioremap() with flags != 0 to do the real work, which will call
change_page_attr_addr() if phys_addr + size - 1 < (end_pfn_map << PAGE_SHIFT).
But some pages between 0 ~ end_pfn_map << PAGE_SHIFT are not mapped by
identity map, this will make change_page_attr_addr failed.

This patch is based on latest x86 git and has been tested on x86_64 platform.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap_64.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
index 2815ab60009b..0a05f024dc22 100644
--- a/arch/x86/mm/ioremap_64.c
+++ b/arch/x86/mm/ioremap_64.c
@@ -41,7 +41,14 @@ ioremap_change_attr(unsigned long phys_addr, unsigned long size,
 	if (phys_addr + size - 1 < (end_pfn_map << PAGE_SHIFT)) {
 		unsigned long npages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
 		unsigned long vaddr = (unsigned long) __va(phys_addr);
+		int level;
 
+		/*
+		 * If there is no identity map for this address,
+		 * change_page_attr_addr is unnecessary
+		 */
+		if (!lookup_address(vaddr, &level))
+			return err;
 		/*
  		 * Must use a address here and not struct page because the phys addr
 		 * can be a in hole between nodes and not have an memmap entry.
-- 
cgit v1.2.3-59-g8ed1b


From f316fe687521fad5ad2fd8389397c38aa97439d2 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:04 +0100
Subject: x86: cpa: make self-test depend on DEBUG_KERNEL

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.debug | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 46d34b2db421..2a859a7e2d74 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -205,6 +205,7 @@ config DEBUG_BOOT_PARAMS
 
 config CPA_DEBUG
 	bool "CPA self test code"
+	depends on DEBUG_KERNEL
 	help
 	  Do change_page_attr self tests at boot.
 
-- 
cgit v1.2.3-59-g8ed1b


From ed724be65fa18833244d81b484e425fc838837fa Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:34:04 +0100
Subject: x86: turn the check_exec function into function that

What the check_exec() function really is trying to do is enforce certain
bits in the pgprot that are required by the x86 architecture, but that
callers might not be aware of (such as NX bit exclusion of the BIOS
area for BIOS based PCI access; it's not uncommon to ioremap the BIOS
region for various purposes and normally ioremap() memory has the NX bit
set).

This patch turns the check_exec() function into static_protections()
which also is now used to make sure the kernel text area remains non-NX
and that the .rodata section remains read-only. If the architecture
ends up requiring more such mandatory prot settings for specific areas,
this is now a reasonable place to add these.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr.c | 47 +++++++++++++++++++++++++++++++++++++----------
 1 file changed, 37 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index cbe8e9223bee..00f6f341e291 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -24,22 +24,49 @@ void clflush_cache_range(void *addr, int size)
 #include <asm/pgalloc.h>
 
 /*
- * We allow the BIOS range to be executable:
+ * We must allow the BIOS range to be executable:
  */
 #define BIOS_BEGIN		0x000a0000
 #define BIOS_END		0x00100000
 
-static inline pgprot_t check_exec(pgprot_t prot, unsigned long address)
+static inline int
+within(unsigned long addr, unsigned long start, unsigned long end)
 {
-	if (__pa(address) >= BIOS_BEGIN && __pa(address) < BIOS_END)
-		pgprot_val(prot) &= ~_PAGE_NX;
+	return addr >= start && addr < end;
+}
+
+/*
+ * Certain areas of memory on x86 require very specific protection flags,
+ * for example the BIOS area or kernel text. Callers don't always get this
+ * right (again, ioremap() on BIOS memory is not uncommon) so this function
+ * checks and fixes these known static required protection bits.
+ */
+static inline pgprot_t static_protections(pgprot_t prot, unsigned long address)
+{
+	pgprot_t forbidden = __pgprot(0);
+
 	/*
-	 * Better fail early if someone sets the kernel text to NX.
-	 * Does not cover __inittext
+	 * The BIOS area between 640k and 1Mb needs to be executable for
+	 * PCI BIOS based config access (CONFIG_PCI_GOBIOS) support.
 	 */
-	BUG_ON(address >= (unsigned long)&_text &&
-		address < (unsigned long)&_etext &&
-	       (pgprot_val(prot) & _PAGE_NX));
+	if (within(__pa(address), BIOS_BEGIN, BIOS_END))
+		pgprot_val(forbidden) |= _PAGE_NX;
+
+	/*
+	 * The kernel text needs to be executable for obvious reasons
+	 * Does not cover __inittext since that is gone later on
+	 */
+	if (within(address, (unsigned long)_text, (unsigned long)_etext))
+		pgprot_val(forbidden) |= _PAGE_NX;
+
+#ifdef CONFIG_DEBUG_RODATA
+	/* The .rodata section needs to be read-only */
+	if (within(address, (unsigned long)__start_rodata,
+				(unsigned long)__end_rodata))
+		pgprot_val(forbidden) |= _PAGE_RW;
+#endif
+
+	prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden));
 
 	return prot;
 }
@@ -169,7 +196,7 @@ repeat:
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
 
-	prot = check_exec(prot, address);
+	prot = static_protections(prot, address);
 
 	if (level == PG_LEVEL_4K) {
 		set_pte_atomic(kpte, pfn_pte(pfn, canon_pgprot(prot)));
-- 
cgit v1.2.3-59-g8ed1b


From a40343497e8983cdf07fde99c9081ee62b96f745 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:04 +0100
Subject: x86: fix ioremap pgprot inconsistency

The pgprot flags which are handed into ioremap_page_range() are
different to those which are set in change_page_attr(). The
ioremap_page_range flags are executable, while the c_p_a flags are
not. Also make the mappings global (which is a NOP currently on 32bit,
although CPUs from PPRO+ onwards support it, but that's a separate
fix.)

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/ioremap_32.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index f8e6c4709cc2..18757f058bda 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -67,8 +67,7 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
 				return NULL;
 	}
 
-	prot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY
-			| _PAGE_ACCESSED | flags);
+	prot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
 
 	/*
 	 * Mappings have to be page-aligned
-- 
cgit v1.2.3-59-g8ed1b


From 1aaf74e919be54be0023c3124923fb537c7fb772 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:05 +0100
Subject: x86: fix ioremap pgprot inconsistency

The pgprot flags which are handed into ioremap_page_range() are
different to those which are set in change_page_attr(). The
ioremap_page_range flags are executable, while the c_p_a flags are
not.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/ioremap_64.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
index 0a05f024dc22..a37556124c86 100644
--- a/arch/x86/mm/ioremap_64.c
+++ b/arch/x86/mm/ioremap_64.c
@@ -53,7 +53,7 @@ ioremap_change_attr(unsigned long phys_addr, unsigned long size,
  		 * Must use a address here and not struct page because the phys addr
 		 * can be a in hole between nodes and not have an memmap entry.
 		 */
-		err = change_page_attr_addr(vaddr,npages,__pgprot(__PAGE_KERNEL|flags));
+		err = change_page_attr_addr(vaddr,npages,MAKE_GLOBAL(__PAGE_KERNEL|flags));
 		if (!err)
 			global_flush_tlb();
 	}
@@ -91,7 +91,7 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
 	if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
 		return (__force void __iomem *)phys_to_virt(phys_addr);
 
-	pgprot = __pgprot(__PAGE_KERNEL_EXEC | _PAGE_GLOBAL | flags);
+	pgprot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
 	/*
 	 * Mappings have to be page-aligned
 	 */
-- 
cgit v1.2.3-59-g8ed1b


From 91eebf40b3cb5abd76e813e17dbc320ff2ea3295 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:05 +0100
Subject: x86: style cleanup of ioremap code

Fix the coding style before going further.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/ioremap_32.c | 97 ++++++++++++++++++++++++------------------------
 arch/x86/mm/ioremap_64.c | 48 +++++++++++-------------
 2 files changed, 70 insertions(+), 75 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 18757f058bda..30ff2586db1e 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -1,6 +1,4 @@
 /*
- * arch/i386/mm/ioremap.c
- *
  * Re-map IO memory to kernel address space so that we can access it.
  * This is needed for high PCI addresses that aren't mapped in the
  * 640k-1MB IO memory area on PC's
@@ -21,10 +19,6 @@
 #define ISA_START_ADDRESS	0xa0000
 #define ISA_END_ADDRESS		0x100000
 
-/*
- * Generic mapping function (not visible outside):
- */
-
 /*
  * Remap an arbitrary physical address space into the kernel virtual
  * address space. Needed when the kernel wants to access high addresses
@@ -34,10 +28,11 @@
  * have to convert them into an offset in a page-aligned mapping, but the
  * caller shouldn't need to know that small detail.
  */
-void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
+void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
+			unsigned long flags)
 {
-	void __iomem * addr;
-	struct vm_struct * area;
+	void __iomem *addr;
+	struct vm_struct *area;
 	unsigned long offset, last_addr;
 	pgprot_t prot;
 
@@ -61,9 +56,10 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
 
 		t_addr = __va(phys_addr);
 		t_end = t_addr + (size - 1);
-	   
-		for(page = virt_to_page(t_addr); page <= virt_to_page(t_end); page++)
-			if(!PageReserved(page))
+
+		for (page = virt_to_page(t_addr);
+		     page <= virt_to_page(t_end); page++)
+			if (!PageReserved(page))
 				return NULL;
 	}
 
@@ -85,7 +81,7 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
 	area->phys_addr = phys_addr;
 	addr = (void __iomem *) area->addr;
 	if (ioremap_page_range((unsigned long) addr,
-			(unsigned long) addr + size, phys_addr, prot)) {
+			       (unsigned long) addr + size, phys_addr, prot)) {
 		vunmap((void __force *) addr);
 		return NULL;
 	}
@@ -102,31 +98,31 @@ EXPORT_SYMBOL(__ioremap);
  * make bus memory CPU accessible via the readb/readw/readl/writeb/
  * writew/writel functions and the other mmio helpers. The returned
  * address is not guaranteed to be usable directly as a virtual
- * address. 
+ * address.
  *
  * This version of ioremap ensures that the memory is marked uncachable
  * on the CPU as well as honouring existing caching rules from things like
- * the PCI bus. Note that there are other caches and buffers on many 
+ * the PCI bus. Note that there are other caches and buffers on many
  * busses. In particular driver authors should read up on PCI writes
  *
  * It's useful if some control registers are in such an area and
  * write combining or read caching is not desirable:
- * 
+ *
  * Must be freed with iounmap.
  */
-
-void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
+void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
 {
 	unsigned long last_addr;
 	void __iomem *p = __ioremap(phys_addr, size, _PAGE_PCD | _PAGE_PWT);
-	if (!p) 
-		return p; 
+
+	if (!p)
+		return p;
 
 	/* Guaranteed to be > phys_addr, as per __ioremap() */
 	last_addr = phys_addr + size - 1;
 
 	if (last_addr < virt_to_phys(high_memory) - 1) {
-		struct page *ppage = virt_to_page(__va(phys_addr));		
+		struct page *ppage = virt_to_page(__va(phys_addr));
 		unsigned long npages;
 
 		phys_addr &= PAGE_MASK;
@@ -135,18 +131,18 @@ void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
 		last_addr = PAGE_ALIGN(last_addr);
 
 		/* .. but that's ok, because modulo-2**n arithmetic will make
-	 	* the page-aligned "last - first" come out right.
-	 	*/
+		 * the page-aligned "last - first" come out right.
+		 */
 		npages = (last_addr - phys_addr) >> PAGE_SHIFT;
 
-		if (change_page_attr(ppage, npages, PAGE_KERNEL_NOCACHE) < 0) { 
-			iounmap(p); 
+		if (change_page_attr(ppage, npages, PAGE_KERNEL_NOCACHE) < 0) {
+			iounmap(p);
 			p = NULL;
 		}
 		global_flush_tlb();
 	}
 
-	return p;					
+	return p;
 }
 EXPORT_SYMBOL(ioremap_nocache);
 
@@ -169,10 +165,11 @@ void iounmap(volatile void __iomem *addr)
 	 * of ISA space.   So handle that here.
 	 */
 	if (addr >= phys_to_virt(ISA_START_ADDRESS) &&
-			addr < phys_to_virt(ISA_END_ADDRESS))
+	    addr < phys_to_virt(ISA_END_ADDRESS))
 		return;
 
-	addr = (volatile void __iomem *)(PAGE_MASK & (unsigned long __force)addr);
+	addr = (volatile void __iomem *)
+		(PAGE_MASK & (unsigned long __force)addr);
 
 	/* Use the vm area unlocked, assuming the caller
 	   ensures there isn't another iounmap for the same address
@@ -187,7 +184,7 @@ void iounmap(volatile void __iomem *addr)
 	read_unlock(&vmlist_lock);
 
 	if (!p) {
-		printk("iounmap: bad address %p\n", addr);
+		printk(KERN_ERR "iounmap: bad address %p\n", addr);
 		dump_stack();
 		return;
 	}
@@ -198,12 +195,12 @@ void iounmap(volatile void __iomem *addr)
 				 get_vm_area_size(p) >> PAGE_SHIFT,
 				 PAGE_KERNEL);
 		global_flush_tlb();
-	} 
+	}
 
 	/* Finally remove it */
 	o = remove_vm_area((void *)addr);
 	BUG_ON(p != o || o == NULL);
-	kfree(p); 
+	kfree(p);
 }
 EXPORT_SYMBOL(iounmap);
 
@@ -237,7 +234,7 @@ void __init early_ioremap_init(void)
 	unsigned long *pgd;
 
 	if (early_ioremap_debug)
-		printk("early_ioremap_init()\n");
+		printk(KERN_DEBUG "early_ioremap_init()\n");
 
 	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
 	*pgd = __pa(bm_pte) | _PAGE_TABLE;
@@ -248,15 +245,16 @@ void __init early_ioremap_init(void)
 	 */
 	if (pgd != early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END))) {
 		WARN_ON(1);
-		printk("pgd %p != %p\n",
-			pgd, early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
-		printk("fix_to_virt(FIX_BTMAP_BEGIN): %08lx\n",
-			fix_to_virt(FIX_BTMAP_BEGIN));
-		printk("fix_to_virt(FIX_BTMAP_END):   %08lx\n",
-			fix_to_virt(FIX_BTMAP_END));
-
-		printk("FIX_BTMAP_END:       %d\n", FIX_BTMAP_END);
-		printk("FIX_BTMAP_BEGIN:     %d\n", FIX_BTMAP_BEGIN);
+		printk(KERN_WARNING "pgd %p != %p\n",
+		       pgd, early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
+		printk(KERN_WARNING "fix_to_virt(FIX_BTMAP_BEGIN): %08lx\n",
+		       fix_to_virt(FIX_BTMAP_BEGIN));
+		printk(KERN_WARNING "fix_to_virt(FIX_BTMAP_END):   %08lx\n",
+		       fix_to_virt(FIX_BTMAP_END));
+
+		printk(KERN_WARNING "FIX_BTMAP_END:       %d\n", FIX_BTMAP_END);
+		printk(KERN_WARNING "FIX_BTMAP_BEGIN:     %d\n",
+		       FIX_BTMAP_BEGIN);
 	}
 }
 
@@ -265,7 +263,7 @@ void __init early_ioremap_clear(void)
 	unsigned long *pgd;
 
 	if (early_ioremap_debug)
-		printk("early_ioremap_clear()\n");
+		printk(KERN_DEBUG "early_ioremap_clear()\n");
 
 	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
 	*pgd = 0;
@@ -331,10 +329,10 @@ static int __init check_early_ioremap_leak(void)
 		return 0;
 
 	printk(KERN_WARNING
-		"Debug warning: early ioremap leak of %d areas detected.\n",
-			early_ioremap_nested);
+	       "Debug warning: early ioremap leak of %d areas detected.\n",
+	       early_ioremap_nested);
 	printk(KERN_WARNING
-		"please boot with early_ioremap_debug and report the dmesg.\n");
+	       "please boot with early_ioremap_debug and report the dmesg.\n");
 	WARN_ON(1);
 
 	return 1;
@@ -351,8 +349,8 @@ void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 
 	nesting = early_ioremap_nested;
 	if (early_ioremap_debug) {
-		printk("early_ioremap(%08lx, %08lx) [%d] => ",
-				phys_addr, size, nesting);
+		printk(KERN_DEBUG "early_ioremap(%08lx, %08lx) [%d] => ",
+		       phys_addr, size, nesting);
 		dump_stack();
 	}
 
@@ -398,7 +396,7 @@ void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 	if (early_ioremap_debug)
 		printk(KERN_CONT "%08lx + %08lx\n", offset, fix_to_virt(idx0));
 
-	return (void*) (offset + fix_to_virt(idx0));
+	return (void *) (offset + fix_to_virt(idx0));
 }
 
 void __init early_iounmap(void *addr, unsigned long size)
@@ -413,7 +411,8 @@ void __init early_iounmap(void *addr, unsigned long size)
 	WARN_ON(nesting < 0);
 
 	if (early_ioremap_debug) {
-		printk("early_iounmap(%p, %08lx) [%d]\n", addr, size, nesting);
+		printk(KERN_DEBUG "early_iounmap(%p, %08lx) [%d]\n", addr,
+		       size, nesting);
 		dump_stack();
 	}
 
diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
index a37556124c86..bd962cc636c5 100644
--- a/arch/x86/mm/ioremap_64.c
+++ b/arch/x86/mm/ioremap_64.c
@@ -1,6 +1,4 @@
 /*
- * arch/x86_64/mm/ioremap.c
- *
  * Re-map IO memory to kernel address space so that we can access it.
  * This is needed for high PCI addresses that aren't mapped in the
  * 640k-1MB IO memory area on PC's
@@ -33,9 +31,8 @@ EXPORT_SYMBOL(__phys_addr);
  * Fix up the linear direct mapping of the kernel to avoid cache attribute
  * conflicts.
  */
-static int
-ioremap_change_attr(unsigned long phys_addr, unsigned long size,
-					unsigned long flags)
+static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
+			       unsigned long flags)
 {
 	int err = 0;
 	if (phys_addr + size - 1 < (end_pfn_map << PAGE_SHIFT)) {
@@ -50,20 +47,18 @@ ioremap_change_attr(unsigned long phys_addr, unsigned long size,
 		if (!lookup_address(vaddr, &level))
 			return err;
 		/*
- 		 * Must use a address here and not struct page because the phys addr
-		 * can be a in hole between nodes and not have an memmap entry.
+		 * Must use a address here and not struct page because
+		 * the phys addr can be a in hole between nodes and
+		 * not have an memmap entry.
 		 */
-		err = change_page_attr_addr(vaddr,npages,MAKE_GLOBAL(__PAGE_KERNEL|flags));
+		err = change_page_attr_addr(vaddr,npages,
+					    MAKE_GLOBAL(__PAGE_KERNEL|flags));
 		if (!err)
 			global_flush_tlb();
 	}
 	return err;
 }
 
-/*
- * Generic mapping function
- */
-
 /*
  * Remap an arbitrary physical address space into the kernel virtual
  * address space. Needed when the kernel wants to access high addresses
@@ -73,10 +68,11 @@ ioremap_change_attr(unsigned long phys_addr, unsigned long size,
  * have to convert them into an offset in a page-aligned mapping, but the
  * caller shouldn't need to know that small detail.
  */
-void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
+void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
+			unsigned long flags)
 {
-	void * addr;
-	struct vm_struct * area;
+	void *addr;
+	struct vm_struct *area;
 	unsigned long offset, last_addr;
 	pgprot_t pgprot;
 
@@ -130,20 +126,19 @@ EXPORT_SYMBOL(__ioremap);
  * make bus memory CPU accessible via the readb/readw/readl/writeb/
  * writew/writel functions and the other mmio helpers. The returned
  * address is not guaranteed to be usable directly as a virtual
- * address. 
+ * address.
  *
  * This version of ioremap ensures that the memory is marked uncachable
  * on the CPU as well as honouring existing caching rules from things like
- * the PCI bus. Note that there are other caches and buffers on many 
+ * the PCI bus. Note that there are other caches and buffers on many
  * busses. In particular driver authors should read up on PCI writes
  *
  * It's useful if some control registers are in such an area and
  * write combining or read caching is not desirable:
- * 
+ *
  * Must be freed with iounmap.
  */
-
-void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
+void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
 {
 	return __ioremap(phys_addr, size, _PAGE_PCD | _PAGE_PWT);
 }
@@ -159,13 +154,14 @@ void iounmap(volatile void __iomem *addr)
 {
 	struct vm_struct *p, *o;
 
-	if (addr <= high_memory) 
-		return; 
+	if (addr <= high_memory)
+		return;
 	if (addr >= phys_to_virt(ISA_START_ADDRESS) &&
-		addr < phys_to_virt(ISA_END_ADDRESS))
+	    addr < phys_to_virt(ISA_END_ADDRESS))
 		return;
 
-	addr = (volatile void __iomem *)(PAGE_MASK & (unsigned long __force)addr);
+	addr = (volatile void __iomem *)
+		(PAGE_MASK & (unsigned long __force)addr);
 	/* Use the vm area unlocked, assuming the caller
 	   ensures there isn't another iounmap for the same address
 	   in parallel. Reuse of the virtual address is prevented by
@@ -179,7 +175,7 @@ void iounmap(volatile void __iomem *addr)
 	read_unlock(&vmlist_lock);
 
 	if (!p) {
-		printk("iounmap: bad address %p\n", addr);
+		printk(KERN_ERR "iounmap: bad address %p\n", addr);
 		dump_stack();
 		return;
 	}
@@ -191,7 +187,7 @@ void iounmap(volatile void __iomem *addr)
 	/* Finally remove it */
 	o = remove_vm_area((void *)addr);
 	BUG_ON(p != o || o == NULL);
-	kfree(p); 
+	kfree(p);
 }
 EXPORT_SYMBOL(iounmap);
 
-- 
cgit v1.2.3-59-g8ed1b


From 3cbd09e482ade50d212511d4693bd754d4d9dd55 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:05 +0100
Subject: x86: cleanup ioremap includes

Get rid of the douplicate define of ISA_START/END_ADDRESS and use the
same headers in 32 and 64 bit code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/ioremap_32.c | 15 +++++++--------
 arch/x86/mm/ioremap_64.c | 13 ++++++-------
 2 files changed, 13 insertions(+), 15 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 30ff2586db1e..d43251c9c1c6 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -6,18 +6,17 @@
  * (C) Copyright 1995 1996 Linus Torvalds
  */
 
-#include <linux/vmalloc.h>
 #include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
 #include <linux/io.h>
-#include <asm/fixmap.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+
 #include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
+#include <asm/e820.h>
+#include <asm/fixmap.h>
 #include <asm/pgtable.h>
-
-#define ISA_START_ADDRESS	0xa0000
-#define ISA_END_ADDRESS		0x100000
+#include <asm/tlbflush.h>
 
 /*
  * Remap an arbitrary physical address space into the kernel virtual
diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
index bd962cc636c5..8862a19f39c8 100644
--- a/arch/x86/mm/ioremap_64.c
+++ b/arch/x86/mm/ioremap_64.c
@@ -6,18 +6,17 @@
  * (C) Copyright 1995 1996 Linus Torvalds
  */
 
-#include <linux/vmalloc.h>
 #include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
 #include <linux/io.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
 
-#include <asm/pgalloc.h>
-#include <asm/fixmap.h>
-#include <asm/tlbflush.h>
 #include <asm/cacheflush.h>
-#include <asm/proto.h>
 #include <asm/e820.h>
+#include <asm/fixmap.h>
+#include <asm/pgtable.h>
+#include <asm/tlbflush.h>
 
 unsigned long __phys_addr(unsigned long x)
 {
-- 
cgit v1.2.3-59-g8ed1b


From f87519e8f4f1de9b39a40e56479a7ad2443169dd Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:05 +0100
Subject: x86: introduce max_pfn_mapped

64bit uses end_pfn_map and 32bit uses max_low_pfn. There are several
files which have #ifdef'ed defines which map either to end_pfn_map or
max_low_pfn. Replace this by a universal define and clean up all the
other instances.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/efi.c       |  4 ++--
 arch/x86/mm/pageattr-test.c | 21 +++++++--------------
 include/asm-x86/efi.h       |  2 --
 include/asm-x86/page.h      |  2 ++
 4 files changed, 11 insertions(+), 18 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index 834ecfb41e97..57b57778bf60 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -396,7 +396,7 @@ static void __init runtime_code_page_mkexec(void)
 		md = p;
 		end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
 		if (md->type == EFI_RUNTIME_SERVICES_CODE &&
-		    (end >> PAGE_SHIFT) <= end_pfn_map)
+		    (end >> PAGE_SHIFT) <= max_pfn_mapped)
 			change_page_attr_addr(md->virt_addr,
 					      md->num_pages,
 					      PAGE_KERNEL_EXEC_NOCACHE);
@@ -429,7 +429,7 @@ void __init efi_enter_virtual_mode(void)
 			continue;
 		end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
 		if ((md->attribute & EFI_MEMORY_WB) &&
-		    ((end >> PAGE_SHIFT) <= end_pfn_map))
+		    ((end >> PAGE_SHIFT) <= max_pfn_mapped))
 			md->virt_addr = (unsigned long)__va(md->phys_addr);
 		else
 			md->virt_addr = (unsigned long)
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index d7a93008cc12..6a41a0f0c149 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -27,13 +27,6 @@ enum {
 	GPS			= (1<<30)
 };
 
-#ifdef CONFIG_X86_64
-# include <asm/proto.h>
-# define max_mapped		end_pfn_map
-#else
-# define max_mapped		max_low_pfn
-#endif
-
 struct split_state {
 	long lpg, gpg, spg, exec;
 	long min_exec, max_exec;
@@ -48,7 +41,7 @@ static __init int print_split(struct split_state *s)
 	s->lpg = s->gpg = s->spg = s->exec = 0;
 	s->min_exec = ~0UL;
 	s->max_exec = 0;
-	for (i = 0; i < max_mapped; ) {
+	for (i = 0; i < max_pfn_mapped; ) {
 		unsigned long addr = (unsigned long)__va(i << PAGE_SHIFT);
 		int level;
 		pte_t *pte;
@@ -97,8 +90,8 @@ static __init int print_split(struct split_state *s)
 
 	expected = (s->gpg*GPS + s->lpg*LPS)/PAGE_SIZE + s->spg + missed;
 	if (expected != i) {
-		printk(KERN_ERR "CPA max_mapped %lu but expected %lu\n",
-			max_mapped, expected);
+		printk(KERN_ERR "CPA max_pfn_mapped %lu but expected %lu\n",
+			max_pfn_mapped, expected);
 		return 1;
 	}
 	return err;
@@ -120,22 +113,22 @@ static __init int exercise_pageattr(void)
 
 	printk(KERN_INFO "CPA exercising pageattr\n");
 
-	bm = vmalloc((max_mapped + 7) / 8);
+	bm = vmalloc((max_pfn_mapped + 7) / 8);
 	if (!bm) {
 		printk(KERN_ERR "CPA Cannot vmalloc bitmap\n");
 		return -ENOMEM;
 	}
-	memset(bm, 0, (max_mapped + 7) / 8);
+	memset(bm, 0, (max_pfn_mapped + 7) / 8);
 
 	failed += print_split(&sa);
 	srandom32(100);
 
 	for (i = 0; i < NTEST; i++) {
-		unsigned long pfn = random32() % max_mapped;
+		unsigned long pfn = random32() % max_pfn_mapped;
 
 		addr[i] = (unsigned long)__va(pfn << PAGE_SHIFT);
 		len[i] = random32() % 100;
-		len[i] = min_t(unsigned long, len[i], max_mapped - pfn - 1);
+		len[i] = min_t(unsigned long, len[i], max_pfn_mapped - pfn - 1);
 
 		if (len[i] == 0)
 			len[i] = 1;
diff --git a/include/asm-x86/efi.h b/include/asm-x86/efi.h
index 9e08ae84795d..9c68a1f098d8 100644
--- a/include/asm-x86/efi.h
+++ b/include/asm-x86/efi.h
@@ -35,8 +35,6 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...);
 
 #define efi_ioremap(addr, size)			ioremap(addr, size)
 
-#define end_pfn_map				max_low_pfn
-
 #else /* !CONFIG_X86_32 */
 
 #define MAX_EFI_IO_PAGES	100
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h
index eba88d940092..e2c79d8dcdcf 100644
--- a/include/asm-x86/page.h
+++ b/include/asm-x86/page.h
@@ -33,8 +33,10 @@
 
 #ifdef CONFIG_X86_64
 #include <asm/page_64.h>
+#define max_pfn_mapped		end_pfn_map
 #else
 #include <asm/page_32.h>
+#define max_pfn_mapped		max_low_pfn
 #endif	/* CONFIG_X86_64 */
 
 #define PAGE_OFFSET		((unsigned long)__PAGE_OFFSET)
-- 
cgit v1.2.3-59-g8ed1b


From 74ff2857f099951020a47420872f5c1460f32c27 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:05 +0100
Subject: x86: make c_p_a unconditional in ioremap

Make c_p_a unconditional for ioremap and iounmap. This ensures
complete consistency of the flags which are handed to
ioremap_page_range and the real flags in the mappings.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/ioremap_32.c |  4 ++--
 arch/x86/mm/ioremap_64.c | 14 ++++++--------
 2 files changed, 8 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index d43251c9c1c6..213ace58a188 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -74,7 +74,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 	/*
 	 * Ok, go for it..
 	 */
-	area = get_vm_area(size, VM_IOREMAP | (flags << 20));
+	area = get_vm_area(size, VM_IOREMAP);
 	if (!area)
 		return NULL;
 	area->phys_addr = phys_addr;
@@ -189,7 +189,7 @@ void iounmap(volatile void __iomem *addr)
 	}
 
 	/* Reset the direct mapping. Can block */
-	if ((p->flags >> 20) && p->phys_addr < virt_to_phys(high_memory) - 1) {
+	if (p->phys_addr < virt_to_phys(high_memory) - 1) {
 		change_page_attr(virt_to_page(__va(p->phys_addr)),
 				 get_vm_area_size(p) >> PAGE_SHIFT,
 				 PAGE_KERNEL);
diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
index 8862a19f39c8..bb9246c4a07b 100644
--- a/arch/x86/mm/ioremap_64.c
+++ b/arch/x86/mm/ioremap_64.c
@@ -31,7 +31,7 @@ EXPORT_SYMBOL(__phys_addr);
  * conflicts.
  */
 static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
-			       unsigned long flags)
+			       pgprot_t prot)
 {
 	int err = 0;
 	if (phys_addr + size - 1 < (end_pfn_map << PAGE_SHIFT)) {
@@ -50,8 +50,8 @@ static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
 		 * the phys addr can be a in hole between nodes and
 		 * not have an memmap entry.
 		 */
-		err = change_page_attr_addr(vaddr,npages,
-					    MAKE_GLOBAL(__PAGE_KERNEL|flags));
+		err = change_page_attr_addr(vaddr, npages, prot);
+
 		if (!err)
 			global_flush_tlb();
 	}
@@ -97,7 +97,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 	/*
 	 * Ok, go for it..
 	 */
-	area = get_vm_area(size, VM_IOREMAP | (flags << 20));
+	area = get_vm_area(size, VM_IOREMAP);
 	if (!area)
 		return NULL;
 	area->phys_addr = phys_addr;
@@ -107,8 +107,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 		remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
 		return NULL;
 	}
-	if (flags && ioremap_change_attr(phys_addr, size, flags) < 0) {
-		area->flags &= 0xffffff;
+	if (ioremap_change_attr(phys_addr, size, pgprot) < 0) {
 		vunmap(addr);
 		return NULL;
 	}
@@ -180,8 +179,7 @@ void iounmap(volatile void __iomem *addr)
 	}
 
 	/* Reset the direct mapping. Can block */
-	if (p->flags >> 20)
-		ioremap_change_attr(p->phys_addr, p->size, 0);
+	ioremap_change_attr(p->phys_addr, p->size, PAGE_KERNEL);
 
 	/* Finally remove it */
 	o = remove_vm_area((void *)addr);
-- 
cgit v1.2.3-59-g8ed1b


From e9332cacd74b25548a517b8dd4fff0216f7907db Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:05 +0100
Subject: x86: switch to change_page_attr_addr in ioremap_32.c

Use change_page_attr_addr() instead of change_page_attr(), which
simplifies the code significantly and matches the 64bit
implementation.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/ioremap_32.c | 90 ++++++++++++++++++++++++++----------------------
 1 file changed, 49 insertions(+), 41 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 213ace58a188..ae7e55c8c647 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -6,6 +6,7 @@
  * (C) Copyright 1995 1996 Linus Torvalds
  */
 
+#include <linux/bootmem.h>
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/module.h>
@@ -18,6 +19,42 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 
+/*
+ * Fix up the linear direct mapping of the kernel to avoid cache attribute
+ * conflicts.
+ */
+static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
+			       pgprot_t prot)
+{
+	unsigned long npages, vaddr, last_addr = phys_addr + size - 1;
+	int err, level;
+
+	/* No change for pages after the last mapping */
+	if (last_addr >= (max_pfn_mapped << PAGE_SHIFT))
+		return 0;
+
+	npages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+	vaddr = (unsigned long) __va(phys_addr);
+
+	/*
+	 * If there is no identity map for this address,
+	 * change_page_attr_addr is unnecessary
+	 */
+	if (!lookup_address(vaddr, &level))
+		return 0;
+
+	/*
+	 * Must use an address here and not struct page because the
+	 * phys addr can be a in hole between nodes and not have a
+	 * memmap entry.
+	 */
+	err = change_page_attr_addr(vaddr, npages, prot);
+	if (!err)
+		global_flush_tlb();
+
+	return err;
+}
+
 /*
  * Remap an arbitrary physical address space into the kernel virtual
  * address space. Needed when the kernel wants to access high addresses
@@ -33,7 +70,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 	void __iomem *addr;
 	struct vm_struct *area;
 	unsigned long offset, last_addr;
-	pgprot_t prot;
+	pgprot_t pgprot;
 
 	/* Don't allow wraparound or zero size */
 	last_addr = phys_addr + size - 1;
@@ -62,7 +99,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 				return NULL;
 	}
 
-	prot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
+	pgprot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
 
 	/*
 	 * Mappings have to be page-aligned
@@ -79,11 +116,17 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 		return NULL;
 	area->phys_addr = phys_addr;
 	addr = (void __iomem *) area->addr;
-	if (ioremap_page_range((unsigned long) addr,
-			       (unsigned long) addr + size, phys_addr, prot)) {
+	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
+			       phys_addr, pgprot)) {
 		vunmap((void __force *) addr);
 		return NULL;
 	}
+
+	if (ioremap_change_attr(phys_addr, size, pgprot) < 0) {
+		vunmap(addr);
+		return NULL;
+	}
+
 	return (void __iomem *) (offset + (char __iomem *)addr);
 }
 EXPORT_SYMBOL(__ioremap);
@@ -111,37 +154,7 @@ EXPORT_SYMBOL(__ioremap);
  */
 void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
 {
-	unsigned long last_addr;
-	void __iomem *p = __ioremap(phys_addr, size, _PAGE_PCD | _PAGE_PWT);
-
-	if (!p)
-		return p;
-
-	/* Guaranteed to be > phys_addr, as per __ioremap() */
-	last_addr = phys_addr + size - 1;
-
-	if (last_addr < virt_to_phys(high_memory) - 1) {
-		struct page *ppage = virt_to_page(__va(phys_addr));
-		unsigned long npages;
-
-		phys_addr &= PAGE_MASK;
-
-		/* This might overflow and become zero.. */
-		last_addr = PAGE_ALIGN(last_addr);
-
-		/* .. but that's ok, because modulo-2**n arithmetic will make
-		 * the page-aligned "last - first" come out right.
-		 */
-		npages = (last_addr - phys_addr) >> PAGE_SHIFT;
-
-		if (change_page_attr(ppage, npages, PAGE_KERNEL_NOCACHE) < 0) {
-			iounmap(p);
-			p = NULL;
-		}
-		global_flush_tlb();
-	}
-
-	return p;
+	return __ioremap(phys_addr, size, _PAGE_PCD | _PAGE_PWT);
 }
 EXPORT_SYMBOL(ioremap_nocache);
 
@@ -189,12 +202,7 @@ void iounmap(volatile void __iomem *addr)
 	}
 
 	/* Reset the direct mapping. Can block */
-	if (p->phys_addr < virt_to_phys(high_memory) - 1) {
-		change_page_attr(virt_to_page(__va(p->phys_addr)),
-				 get_vm_area_size(p) >> PAGE_SHIFT,
-				 PAGE_KERNEL);
-		global_flush_tlb();
-	}
+	ioremap_change_attr(p->phys_addr, p->size, PAGE_KERNEL);
 
 	/* Finally remove it */
 	o = remove_vm_area((void *)addr);
-- 
cgit v1.2.3-59-g8ed1b


From 4b40fcee131847069543cc60a3a79887743c53db Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:05 +0100
Subject: x86: __iomem annotations

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/ioremap_32.c | 2 +-
 arch/x86/mm/ioremap_64.c | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index ae7e55c8c647..5273ac4aa96a 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -81,7 +81,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 	 * Don't remap the low PCI/ISA area, it's always mapped..
 	 */
 	if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
-		return (void __iomem *) phys_to_virt(phys_addr);
+		return (__force void __iomem *)phys_to_virt(phys_addr);
 
 	/*
 	 * Don't allow anybody to remap normal RAM that we're using..
diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
index bb9246c4a07b..e79d2b353de0 100644
--- a/arch/x86/mm/ioremap_64.c
+++ b/arch/x86/mm/ioremap_64.c
@@ -70,7 +70,7 @@ static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
 void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 			unsigned long flags)
 {
-	void *addr;
+	void __iomem *addr;
 	struct vm_struct *area;
 	unsigned long offset, last_addr;
 	pgprot_t pgprot;
@@ -101,7 +101,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 	if (!area)
 		return NULL;
 	area->phys_addr = phys_addr;
-	addr = area->addr;
+	addr = (void __iomem *) area->addr;
 	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
 			       phys_addr, pgprot)) {
 		remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
@@ -111,7 +111,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 		vunmap(addr);
 		return NULL;
 	}
-	return (__force void __iomem *) (offset + (char *)addr);
+	return (void __iomem *) (offset + (char __iomem *)addr);
 }
 EXPORT_SYMBOL(__ioremap);
 
@@ -152,7 +152,7 @@ void iounmap(volatile void __iomem *addr)
 {
 	struct vm_struct *p, *o;
 
-	if (addr <= high_memory)
+	if ((void __force *)addr <= high_memory)
 		return;
 	if (addr >= phys_to_virt(ISA_START_ADDRESS) &&
 	    addr < phys_to_virt(ISA_END_ADDRESS))
-- 
cgit v1.2.3-59-g8ed1b


From e4c1b977f0036c00ebabb60375cb63d0de9d43fa Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:05 +0100
Subject: x86: use remove_vm_are in ioremap_32 error path

When ioremap_page_range fails, then we can use remove_vm_area instead
of vunmap safely.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/ioremap_32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 5273ac4aa96a..4d919c37d1d6 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -118,7 +118,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 	addr = (void __iomem *) area->addr;
 	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
 			       phys_addr, pgprot)) {
-		vunmap((void __force *) addr);
+		remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
 		return NULL;
 	}
 
-- 
cgit v1.2.3-59-g8ed1b


From 240d3a7c47e3fb9c2533f63e9e323a25d91d0643 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:05 +0100
Subject: x86: unify ioremap

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap_32.c |  18 +++
 arch/x86/mm/ioremap_64.c | 317 +++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 313 insertions(+), 22 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 4d919c37d1d6..f4a2082568c8 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -19,6 +19,18 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 
+#ifdef CONFIG_X86_64
+
+unsigned long __phys_addr(unsigned long x)
+{
+	if (x >= __START_KERNEL_map)
+		return x - __START_KERNEL_map + phys_base;
+	return x - PAGE_OFFSET;
+}
+EXPORT_SYMBOL(__phys_addr);
+
+#endif
+
 /*
  * Fix up the linear direct mapping of the kernel to avoid cache attribute
  * conflicts.
@@ -49,6 +61,7 @@ static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
 	 * memmap entry.
 	 */
 	err = change_page_attr_addr(vaddr, npages, prot);
+
 	if (!err)
 		global_flush_tlb();
 
@@ -83,6 +96,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 	if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
 		return (__force void __iomem *)phys_to_virt(phys_addr);
 
+#ifdef CONFIG_X86_32
 	/*
 	 * Don't allow anybody to remap normal RAM that we're using..
 	 */
@@ -98,6 +112,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 			if (!PageReserved(page))
 				return NULL;
 	}
+#endif
 
 	pgprot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
 
@@ -211,6 +226,7 @@ void iounmap(volatile void __iomem *addr)
 }
 EXPORT_SYMBOL(iounmap);
 
+#ifdef CONFIG_X86_32
 
 int __initdata early_ioremap_debug;
 
@@ -443,3 +459,5 @@ void __this_fixmap_does_not_exist(void)
 {
 	WARN_ON(1);
 }
+
+#endif /* CONFIG_X86_32 */
diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
index e79d2b353de0..f4a2082568c8 100644
--- a/arch/x86/mm/ioremap_64.c
+++ b/arch/x86/mm/ioremap_64.c
@@ -6,6 +6,7 @@
  * (C) Copyright 1995 1996 Linus Torvalds
  */
 
+#include <linux/bootmem.h>
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/module.h>
@@ -18,6 +19,8 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 
+#ifdef CONFIG_X86_64
+
 unsigned long __phys_addr(unsigned long x)
 {
 	if (x >= __START_KERNEL_map)
@@ -26,6 +29,8 @@ unsigned long __phys_addr(unsigned long x)
 }
 EXPORT_SYMBOL(__phys_addr);
 
+#endif
+
 /*
  * Fix up the linear direct mapping of the kernel to avoid cache attribute
  * conflicts.
@@ -33,28 +38,33 @@ EXPORT_SYMBOL(__phys_addr);
 static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
 			       pgprot_t prot)
 {
-	int err = 0;
-	if (phys_addr + size - 1 < (end_pfn_map << PAGE_SHIFT)) {
-		unsigned long npages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-		unsigned long vaddr = (unsigned long) __va(phys_addr);
-		int level;
-
-		/*
-		 * If there is no identity map for this address,
-		 * change_page_attr_addr is unnecessary
-		 */
-		if (!lookup_address(vaddr, &level))
-			return err;
-		/*
-		 * Must use a address here and not struct page because
-		 * the phys addr can be a in hole between nodes and
-		 * not have an memmap entry.
-		 */
-		err = change_page_attr_addr(vaddr, npages, prot);
-
-		if (!err)
-			global_flush_tlb();
-	}
+	unsigned long npages, vaddr, last_addr = phys_addr + size - 1;
+	int err, level;
+
+	/* No change for pages after the last mapping */
+	if (last_addr >= (max_pfn_mapped << PAGE_SHIFT))
+		return 0;
+
+	npages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+	vaddr = (unsigned long) __va(phys_addr);
+
+	/*
+	 * If there is no identity map for this address,
+	 * change_page_attr_addr is unnecessary
+	 */
+	if (!lookup_address(vaddr, &level))
+		return 0;
+
+	/*
+	 * Must use an address here and not struct page because the
+	 * phys addr can be a in hole between nodes and not have a
+	 * memmap entry.
+	 */
+	err = change_page_attr_addr(vaddr, npages, prot);
+
+	if (!err)
+		global_flush_tlb();
+
 	return err;
 }
 
@@ -86,7 +96,26 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 	if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
 		return (__force void __iomem *)phys_to_virt(phys_addr);
 
+#ifdef CONFIG_X86_32
+	/*
+	 * Don't allow anybody to remap normal RAM that we're using..
+	 */
+	if (phys_addr <= virt_to_phys(high_memory - 1)) {
+		char *t_addr, *t_end;
+		struct page *page;
+
+		t_addr = __va(phys_addr);
+		t_end = t_addr + (size - 1);
+
+		for (page = virt_to_page(t_addr);
+		     page <= virt_to_page(t_end); page++)
+			if (!PageReserved(page))
+				return NULL;
+	}
+#endif
+
 	pgprot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
+
 	/*
 	 * Mappings have to be page-aligned
 	 */
@@ -107,10 +136,12 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 		remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
 		return NULL;
 	}
+
 	if (ioremap_change_attr(phys_addr, size, pgprot) < 0) {
 		vunmap(addr);
 		return NULL;
 	}
+
 	return (void __iomem *) (offset + (char __iomem *)addr);
 }
 EXPORT_SYMBOL(__ioremap);
@@ -154,12 +185,19 @@ void iounmap(volatile void __iomem *addr)
 
 	if ((void __force *)addr <= high_memory)
 		return;
+
+	/*
+	 * __ioremap special-cases the PCI/ISA range by not instantiating a
+	 * vm_area and by simply returning an address into the kernel mapping
+	 * of ISA space.   So handle that here.
+	 */
 	if (addr >= phys_to_virt(ISA_START_ADDRESS) &&
 	    addr < phys_to_virt(ISA_END_ADDRESS))
 		return;
 
 	addr = (volatile void __iomem *)
 		(PAGE_MASK & (unsigned long __force)addr);
+
 	/* Use the vm area unlocked, assuming the caller
 	   ensures there isn't another iounmap for the same address
 	   in parallel. Reuse of the virtual address is prevented by
@@ -188,3 +226,238 @@ void iounmap(volatile void __iomem *addr)
 }
 EXPORT_SYMBOL(iounmap);
 
+#ifdef CONFIG_X86_32
+
+int __initdata early_ioremap_debug;
+
+static int __init early_ioremap_debug_setup(char *str)
+{
+	early_ioremap_debug = 1;
+
+	return 0;
+}
+early_param("early_ioremap_debug", early_ioremap_debug_setup);
+
+static __initdata int after_paging_init;
+static __initdata unsigned long bm_pte[1024]
+				__attribute__((aligned(PAGE_SIZE)));
+
+static inline unsigned long * __init early_ioremap_pgd(unsigned long addr)
+{
+	return (unsigned long *)swapper_pg_dir + ((addr >> 22) & 1023);
+}
+
+static inline unsigned long * __init early_ioremap_pte(unsigned long addr)
+{
+	return bm_pte + ((addr >> PAGE_SHIFT) & 1023);
+}
+
+void __init early_ioremap_init(void)
+{
+	unsigned long *pgd;
+
+	if (early_ioremap_debug)
+		printk(KERN_DEBUG "early_ioremap_init()\n");
+
+	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
+	*pgd = __pa(bm_pte) | _PAGE_TABLE;
+	memset(bm_pte, 0, sizeof(bm_pte));
+	/*
+	 * The boot-ioremap range spans multiple pgds, for which
+	 * we are not prepared:
+	 */
+	if (pgd != early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END))) {
+		WARN_ON(1);
+		printk(KERN_WARNING "pgd %p != %p\n",
+		       pgd, early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
+		printk(KERN_WARNING "fix_to_virt(FIX_BTMAP_BEGIN): %08lx\n",
+		       fix_to_virt(FIX_BTMAP_BEGIN));
+		printk(KERN_WARNING "fix_to_virt(FIX_BTMAP_END):   %08lx\n",
+		       fix_to_virt(FIX_BTMAP_END));
+
+		printk(KERN_WARNING "FIX_BTMAP_END:       %d\n", FIX_BTMAP_END);
+		printk(KERN_WARNING "FIX_BTMAP_BEGIN:     %d\n",
+		       FIX_BTMAP_BEGIN);
+	}
+}
+
+void __init early_ioremap_clear(void)
+{
+	unsigned long *pgd;
+
+	if (early_ioremap_debug)
+		printk(KERN_DEBUG "early_ioremap_clear()\n");
+
+	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
+	*pgd = 0;
+	__flush_tlb_all();
+}
+
+void __init early_ioremap_reset(void)
+{
+	enum fixed_addresses idx;
+	unsigned long *pte, phys, addr;
+
+	after_paging_init = 1;
+	for (idx = FIX_BTMAP_BEGIN; idx >= FIX_BTMAP_END; idx--) {
+		addr = fix_to_virt(idx);
+		pte = early_ioremap_pte(addr);
+		if (!*pte & _PAGE_PRESENT) {
+			phys = *pte & PAGE_MASK;
+			set_fixmap(idx, phys);
+		}
+	}
+}
+
+static void __init __early_set_fixmap(enum fixed_addresses idx,
+				   unsigned long phys, pgprot_t flags)
+{
+	unsigned long *pte, addr = __fix_to_virt(idx);
+
+	if (idx >= __end_of_fixed_addresses) {
+		BUG();
+		return;
+	}
+	pte = early_ioremap_pte(addr);
+	if (pgprot_val(flags))
+		*pte = (phys & PAGE_MASK) | pgprot_val(flags);
+	else
+		*pte = 0;
+	__flush_tlb_one(addr);
+}
+
+static inline void __init early_set_fixmap(enum fixed_addresses idx,
+					unsigned long phys)
+{
+	if (after_paging_init)
+		set_fixmap(idx, phys);
+	else
+		__early_set_fixmap(idx, phys, PAGE_KERNEL);
+}
+
+static inline void __init early_clear_fixmap(enum fixed_addresses idx)
+{
+	if (after_paging_init)
+		clear_fixmap(idx);
+	else
+		__early_set_fixmap(idx, 0, __pgprot(0));
+}
+
+
+int __initdata early_ioremap_nested;
+
+static int __init check_early_ioremap_leak(void)
+{
+	if (!early_ioremap_nested)
+		return 0;
+
+	printk(KERN_WARNING
+	       "Debug warning: early ioremap leak of %d areas detected.\n",
+	       early_ioremap_nested);
+	printk(KERN_WARNING
+	       "please boot with early_ioremap_debug and report the dmesg.\n");
+	WARN_ON(1);
+
+	return 1;
+}
+late_initcall(check_early_ioremap_leak);
+
+void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
+{
+	unsigned long offset, last_addr;
+	unsigned int nrpages, nesting;
+	enum fixed_addresses idx0, idx;
+
+	WARN_ON(system_state != SYSTEM_BOOTING);
+
+	nesting = early_ioremap_nested;
+	if (early_ioremap_debug) {
+		printk(KERN_DEBUG "early_ioremap(%08lx, %08lx) [%d] => ",
+		       phys_addr, size, nesting);
+		dump_stack();
+	}
+
+	/* Don't allow wraparound or zero size */
+	last_addr = phys_addr + size - 1;
+	if (!size || last_addr < phys_addr) {
+		WARN_ON(1);
+		return NULL;
+	}
+
+	if (nesting >= FIX_BTMAPS_NESTING) {
+		WARN_ON(1);
+		return NULL;
+	}
+	early_ioremap_nested++;
+	/*
+	 * Mappings have to be page-aligned
+	 */
+	offset = phys_addr & ~PAGE_MASK;
+	phys_addr &= PAGE_MASK;
+	size = PAGE_ALIGN(last_addr) - phys_addr;
+
+	/*
+	 * Mappings have to fit in the FIX_BTMAP area.
+	 */
+	nrpages = size >> PAGE_SHIFT;
+	if (nrpages > NR_FIX_BTMAPS) {
+		WARN_ON(1);
+		return NULL;
+	}
+
+	/*
+	 * Ok, go for it..
+	 */
+	idx0 = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*nesting;
+	idx = idx0;
+	while (nrpages > 0) {
+		early_set_fixmap(idx, phys_addr);
+		phys_addr += PAGE_SIZE;
+		--idx;
+		--nrpages;
+	}
+	if (early_ioremap_debug)
+		printk(KERN_CONT "%08lx + %08lx\n", offset, fix_to_virt(idx0));
+
+	return (void *) (offset + fix_to_virt(idx0));
+}
+
+void __init early_iounmap(void *addr, unsigned long size)
+{
+	unsigned long virt_addr;
+	unsigned long offset;
+	unsigned int nrpages;
+	enum fixed_addresses idx;
+	unsigned int nesting;
+
+	nesting = --early_ioremap_nested;
+	WARN_ON(nesting < 0);
+
+	if (early_ioremap_debug) {
+		printk(KERN_DEBUG "early_iounmap(%p, %08lx) [%d]\n", addr,
+		       size, nesting);
+		dump_stack();
+	}
+
+	virt_addr = (unsigned long)addr;
+	if (virt_addr < fix_to_virt(FIX_BTMAP_BEGIN)) {
+		WARN_ON(1);
+		return;
+	}
+	offset = virt_addr & ~PAGE_MASK;
+	nrpages = PAGE_ALIGN(offset + size - 1) >> PAGE_SHIFT;
+
+	idx = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*nesting;
+	while (nrpages > 0) {
+		early_clear_fixmap(idx);
+		--idx;
+		--nrpages;
+	}
+}
+
+void __this_fixmap_does_not_exist(void)
+{
+	WARN_ON(1);
+}
+
+#endif /* CONFIG_X86_32 */
-- 
cgit v1.2.3-59-g8ed1b


From e64c8aa0c5e5d23730b2d702297e01cd7fe53144 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:05 +0100
Subject: x86: unify ioremap_32 and _64

Unify the now identical ioremap_32.c and ioremap_64.c into the
same ioremap.c file. No code changed.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/Makefile_32  |   2 +-
 arch/x86/mm/Makefile_64  |   2 +-
 arch/x86/mm/ioremap.c    | 463 +++++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/mm/ioremap_32.c | 463 -----------------------------------------------
 arch/x86/mm/ioremap_64.c | 463 -----------------------------------------------
 5 files changed, 465 insertions(+), 928 deletions(-)
 create mode 100644 arch/x86/mm/ioremap.c
 delete mode 100644 arch/x86/mm/ioremap_32.c
 delete mode 100644 arch/x86/mm/ioremap_64.c

(limited to 'arch')

diff --git a/arch/x86/mm/Makefile_32 b/arch/x86/mm/Makefile_32
index 424e5a862271..af0d39bea6c5 100644
--- a/arch/x86/mm/Makefile_32
+++ b/arch/x86/mm/Makefile_32
@@ -2,7 +2,7 @@
 # Makefile for the linux i386-specific parts of the memory manager.
 #
 
-obj-y	:= init_32.o pgtable_32.o fault_32.o ioremap_32.o extable.o pageattr.o mmap.o
+obj-y	:= init_32.o pgtable_32.o fault_32.o ioremap.o extable.o pageattr.o mmap.o
 
 obj-$(CONFIG_CPA_DEBUG) += pageattr-test.o
 obj-$(CONFIG_NUMA) += discontig_32.o
diff --git a/arch/x86/mm/Makefile_64 b/arch/x86/mm/Makefile_64
index 043584478457..b564b5a760da 100644
--- a/arch/x86/mm/Makefile_64
+++ b/arch/x86/mm/Makefile_64
@@ -2,7 +2,7 @@
 # Makefile for the linux x86_64-specific parts of the memory manager.
 #
 
-obj-y	 := init_64.o fault_64.o ioremap_64.o extable.o pageattr.o mmap.o
+obj-y	 := init_64.o fault_64.o ioremap.o extable.o pageattr.o mmap.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_NUMA) += numa_64.o
 obj-$(CONFIG_K8_NUMA) += k8topology_64.o
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
new file mode 100644
index 000000000000..f4a2082568c8
--- /dev/null
+++ b/arch/x86/mm/ioremap.c
@@ -0,0 +1,463 @@
+/*
+ * Re-map IO memory to kernel address space so that we can access it.
+ * This is needed for high PCI addresses that aren't mapped in the
+ * 640k-1MB IO memory area on PC's
+ *
+ * (C) Copyright 1995 1996 Linus Torvalds
+ */
+
+#include <linux/bootmem.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+
+#include <asm/cacheflush.h>
+#include <asm/e820.h>
+#include <asm/fixmap.h>
+#include <asm/pgtable.h>
+#include <asm/tlbflush.h>
+
+#ifdef CONFIG_X86_64
+
+unsigned long __phys_addr(unsigned long x)
+{
+	if (x >= __START_KERNEL_map)
+		return x - __START_KERNEL_map + phys_base;
+	return x - PAGE_OFFSET;
+}
+EXPORT_SYMBOL(__phys_addr);
+
+#endif
+
+/*
+ * Fix up the linear direct mapping of the kernel to avoid cache attribute
+ * conflicts.
+ */
+static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
+			       pgprot_t prot)
+{
+	unsigned long npages, vaddr, last_addr = phys_addr + size - 1;
+	int err, level;
+
+	/* No change for pages after the last mapping */
+	if (last_addr >= (max_pfn_mapped << PAGE_SHIFT))
+		return 0;
+
+	npages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+	vaddr = (unsigned long) __va(phys_addr);
+
+	/*
+	 * If there is no identity map for this address,
+	 * change_page_attr_addr is unnecessary
+	 */
+	if (!lookup_address(vaddr, &level))
+		return 0;
+
+	/*
+	 * Must use an address here and not struct page because the
+	 * phys addr can be a in hole between nodes and not have a
+	 * memmap entry.
+	 */
+	err = change_page_attr_addr(vaddr, npages, prot);
+
+	if (!err)
+		global_flush_tlb();
+
+	return err;
+}
+
+/*
+ * Remap an arbitrary physical address space into the kernel virtual
+ * address space. Needed when the kernel wants to access high addresses
+ * directly.
+ *
+ * NOTE! We need to allow non-page-aligned mappings too: we will obviously
+ * have to convert them into an offset in a page-aligned mapping, but the
+ * caller shouldn't need to know that small detail.
+ */
+void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
+			unsigned long flags)
+{
+	void __iomem *addr;
+	struct vm_struct *area;
+	unsigned long offset, last_addr;
+	pgprot_t pgprot;
+
+	/* Don't allow wraparound or zero size */
+	last_addr = phys_addr + size - 1;
+	if (!size || last_addr < phys_addr)
+		return NULL;
+
+	/*
+	 * Don't remap the low PCI/ISA area, it's always mapped..
+	 */
+	if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
+		return (__force void __iomem *)phys_to_virt(phys_addr);
+
+#ifdef CONFIG_X86_32
+	/*
+	 * Don't allow anybody to remap normal RAM that we're using..
+	 */
+	if (phys_addr <= virt_to_phys(high_memory - 1)) {
+		char *t_addr, *t_end;
+		struct page *page;
+
+		t_addr = __va(phys_addr);
+		t_end = t_addr + (size - 1);
+
+		for (page = virt_to_page(t_addr);
+		     page <= virt_to_page(t_end); page++)
+			if (!PageReserved(page))
+				return NULL;
+	}
+#endif
+
+	pgprot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
+
+	/*
+	 * Mappings have to be page-aligned
+	 */
+	offset = phys_addr & ~PAGE_MASK;
+	phys_addr &= PAGE_MASK;
+	size = PAGE_ALIGN(last_addr+1) - phys_addr;
+
+	/*
+	 * Ok, go for it..
+	 */
+	area = get_vm_area(size, VM_IOREMAP);
+	if (!area)
+		return NULL;
+	area->phys_addr = phys_addr;
+	addr = (void __iomem *) area->addr;
+	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
+			       phys_addr, pgprot)) {
+		remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
+		return NULL;
+	}
+
+	if (ioremap_change_attr(phys_addr, size, pgprot) < 0) {
+		vunmap(addr);
+		return NULL;
+	}
+
+	return (void __iomem *) (offset + (char __iomem *)addr);
+}
+EXPORT_SYMBOL(__ioremap);
+
+/**
+ * ioremap_nocache     -   map bus memory into CPU space
+ * @offset:    bus address of the memory
+ * @size:      size of the resource to map
+ *
+ * ioremap_nocache performs a platform specific sequence of operations to
+ * make bus memory CPU accessible via the readb/readw/readl/writeb/
+ * writew/writel functions and the other mmio helpers. The returned
+ * address is not guaranteed to be usable directly as a virtual
+ * address.
+ *
+ * This version of ioremap ensures that the memory is marked uncachable
+ * on the CPU as well as honouring existing caching rules from things like
+ * the PCI bus. Note that there are other caches and buffers on many
+ * busses. In particular driver authors should read up on PCI writes
+ *
+ * It's useful if some control registers are in such an area and
+ * write combining or read caching is not desirable:
+ *
+ * Must be freed with iounmap.
+ */
+void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
+{
+	return __ioremap(phys_addr, size, _PAGE_PCD | _PAGE_PWT);
+}
+EXPORT_SYMBOL(ioremap_nocache);
+
+/**
+ * iounmap - Free a IO remapping
+ * @addr: virtual address from ioremap_*
+ *
+ * Caller must ensure there is only one unmapping for the same pointer.
+ */
+void iounmap(volatile void __iomem *addr)
+{
+	struct vm_struct *p, *o;
+
+	if ((void __force *)addr <= high_memory)
+		return;
+
+	/*
+	 * __ioremap special-cases the PCI/ISA range by not instantiating a
+	 * vm_area and by simply returning an address into the kernel mapping
+	 * of ISA space.   So handle that here.
+	 */
+	if (addr >= phys_to_virt(ISA_START_ADDRESS) &&
+	    addr < phys_to_virt(ISA_END_ADDRESS))
+		return;
+
+	addr = (volatile void __iomem *)
+		(PAGE_MASK & (unsigned long __force)addr);
+
+	/* Use the vm area unlocked, assuming the caller
+	   ensures there isn't another iounmap for the same address
+	   in parallel. Reuse of the virtual address is prevented by
+	   leaving it in the global lists until we're done with it.
+	   cpa takes care of the direct mappings. */
+	read_lock(&vmlist_lock);
+	for (p = vmlist; p; p = p->next) {
+		if (p->addr == addr)
+			break;
+	}
+	read_unlock(&vmlist_lock);
+
+	if (!p) {
+		printk(KERN_ERR "iounmap: bad address %p\n", addr);
+		dump_stack();
+		return;
+	}
+
+	/* Reset the direct mapping. Can block */
+	ioremap_change_attr(p->phys_addr, p->size, PAGE_KERNEL);
+
+	/* Finally remove it */
+	o = remove_vm_area((void *)addr);
+	BUG_ON(p != o || o == NULL);
+	kfree(p);
+}
+EXPORT_SYMBOL(iounmap);
+
+#ifdef CONFIG_X86_32
+
+int __initdata early_ioremap_debug;
+
+static int __init early_ioremap_debug_setup(char *str)
+{
+	early_ioremap_debug = 1;
+
+	return 0;
+}
+early_param("early_ioremap_debug", early_ioremap_debug_setup);
+
+static __initdata int after_paging_init;
+static __initdata unsigned long bm_pte[1024]
+				__attribute__((aligned(PAGE_SIZE)));
+
+static inline unsigned long * __init early_ioremap_pgd(unsigned long addr)
+{
+	return (unsigned long *)swapper_pg_dir + ((addr >> 22) & 1023);
+}
+
+static inline unsigned long * __init early_ioremap_pte(unsigned long addr)
+{
+	return bm_pte + ((addr >> PAGE_SHIFT) & 1023);
+}
+
+void __init early_ioremap_init(void)
+{
+	unsigned long *pgd;
+
+	if (early_ioremap_debug)
+		printk(KERN_DEBUG "early_ioremap_init()\n");
+
+	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
+	*pgd = __pa(bm_pte) | _PAGE_TABLE;
+	memset(bm_pte, 0, sizeof(bm_pte));
+	/*
+	 * The boot-ioremap range spans multiple pgds, for which
+	 * we are not prepared:
+	 */
+	if (pgd != early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END))) {
+		WARN_ON(1);
+		printk(KERN_WARNING "pgd %p != %p\n",
+		       pgd, early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
+		printk(KERN_WARNING "fix_to_virt(FIX_BTMAP_BEGIN): %08lx\n",
+		       fix_to_virt(FIX_BTMAP_BEGIN));
+		printk(KERN_WARNING "fix_to_virt(FIX_BTMAP_END):   %08lx\n",
+		       fix_to_virt(FIX_BTMAP_END));
+
+		printk(KERN_WARNING "FIX_BTMAP_END:       %d\n", FIX_BTMAP_END);
+		printk(KERN_WARNING "FIX_BTMAP_BEGIN:     %d\n",
+		       FIX_BTMAP_BEGIN);
+	}
+}
+
+void __init early_ioremap_clear(void)
+{
+	unsigned long *pgd;
+
+	if (early_ioremap_debug)
+		printk(KERN_DEBUG "early_ioremap_clear()\n");
+
+	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
+	*pgd = 0;
+	__flush_tlb_all();
+}
+
+void __init early_ioremap_reset(void)
+{
+	enum fixed_addresses idx;
+	unsigned long *pte, phys, addr;
+
+	after_paging_init = 1;
+	for (idx = FIX_BTMAP_BEGIN; idx >= FIX_BTMAP_END; idx--) {
+		addr = fix_to_virt(idx);
+		pte = early_ioremap_pte(addr);
+		if (!*pte & _PAGE_PRESENT) {
+			phys = *pte & PAGE_MASK;
+			set_fixmap(idx, phys);
+		}
+	}
+}
+
+static void __init __early_set_fixmap(enum fixed_addresses idx,
+				   unsigned long phys, pgprot_t flags)
+{
+	unsigned long *pte, addr = __fix_to_virt(idx);
+
+	if (idx >= __end_of_fixed_addresses) {
+		BUG();
+		return;
+	}
+	pte = early_ioremap_pte(addr);
+	if (pgprot_val(flags))
+		*pte = (phys & PAGE_MASK) | pgprot_val(flags);
+	else
+		*pte = 0;
+	__flush_tlb_one(addr);
+}
+
+static inline void __init early_set_fixmap(enum fixed_addresses idx,
+					unsigned long phys)
+{
+	if (after_paging_init)
+		set_fixmap(idx, phys);
+	else
+		__early_set_fixmap(idx, phys, PAGE_KERNEL);
+}
+
+static inline void __init early_clear_fixmap(enum fixed_addresses idx)
+{
+	if (after_paging_init)
+		clear_fixmap(idx);
+	else
+		__early_set_fixmap(idx, 0, __pgprot(0));
+}
+
+
+int __initdata early_ioremap_nested;
+
+static int __init check_early_ioremap_leak(void)
+{
+	if (!early_ioremap_nested)
+		return 0;
+
+	printk(KERN_WARNING
+	       "Debug warning: early ioremap leak of %d areas detected.\n",
+	       early_ioremap_nested);
+	printk(KERN_WARNING
+	       "please boot with early_ioremap_debug and report the dmesg.\n");
+	WARN_ON(1);
+
+	return 1;
+}
+late_initcall(check_early_ioremap_leak);
+
+void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
+{
+	unsigned long offset, last_addr;
+	unsigned int nrpages, nesting;
+	enum fixed_addresses idx0, idx;
+
+	WARN_ON(system_state != SYSTEM_BOOTING);
+
+	nesting = early_ioremap_nested;
+	if (early_ioremap_debug) {
+		printk(KERN_DEBUG "early_ioremap(%08lx, %08lx) [%d] => ",
+		       phys_addr, size, nesting);
+		dump_stack();
+	}
+
+	/* Don't allow wraparound or zero size */
+	last_addr = phys_addr + size - 1;
+	if (!size || last_addr < phys_addr) {
+		WARN_ON(1);
+		return NULL;
+	}
+
+	if (nesting >= FIX_BTMAPS_NESTING) {
+		WARN_ON(1);
+		return NULL;
+	}
+	early_ioremap_nested++;
+	/*
+	 * Mappings have to be page-aligned
+	 */
+	offset = phys_addr & ~PAGE_MASK;
+	phys_addr &= PAGE_MASK;
+	size = PAGE_ALIGN(last_addr) - phys_addr;
+
+	/*
+	 * Mappings have to fit in the FIX_BTMAP area.
+	 */
+	nrpages = size >> PAGE_SHIFT;
+	if (nrpages > NR_FIX_BTMAPS) {
+		WARN_ON(1);
+		return NULL;
+	}
+
+	/*
+	 * Ok, go for it..
+	 */
+	idx0 = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*nesting;
+	idx = idx0;
+	while (nrpages > 0) {
+		early_set_fixmap(idx, phys_addr);
+		phys_addr += PAGE_SIZE;
+		--idx;
+		--nrpages;
+	}
+	if (early_ioremap_debug)
+		printk(KERN_CONT "%08lx + %08lx\n", offset, fix_to_virt(idx0));
+
+	return (void *) (offset + fix_to_virt(idx0));
+}
+
+void __init early_iounmap(void *addr, unsigned long size)
+{
+	unsigned long virt_addr;
+	unsigned long offset;
+	unsigned int nrpages;
+	enum fixed_addresses idx;
+	unsigned int nesting;
+
+	nesting = --early_ioremap_nested;
+	WARN_ON(nesting < 0);
+
+	if (early_ioremap_debug) {
+		printk(KERN_DEBUG "early_iounmap(%p, %08lx) [%d]\n", addr,
+		       size, nesting);
+		dump_stack();
+	}
+
+	virt_addr = (unsigned long)addr;
+	if (virt_addr < fix_to_virt(FIX_BTMAP_BEGIN)) {
+		WARN_ON(1);
+		return;
+	}
+	offset = virt_addr & ~PAGE_MASK;
+	nrpages = PAGE_ALIGN(offset + size - 1) >> PAGE_SHIFT;
+
+	idx = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*nesting;
+	while (nrpages > 0) {
+		early_clear_fixmap(idx);
+		--idx;
+		--nrpages;
+	}
+}
+
+void __this_fixmap_does_not_exist(void)
+{
+	WARN_ON(1);
+}
+
+#endif /* CONFIG_X86_32 */
diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
deleted file mode 100644
index f4a2082568c8..000000000000
--- a/arch/x86/mm/ioremap_32.c
+++ /dev/null
@@ -1,463 +0,0 @@
-/*
- * Re-map IO memory to kernel address space so that we can access it.
- * This is needed for high PCI addresses that aren't mapped in the
- * 640k-1MB IO memory area on PC's
- *
- * (C) Copyright 1995 1996 Linus Torvalds
- */
-
-#include <linux/bootmem.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-
-#include <asm/cacheflush.h>
-#include <asm/e820.h>
-#include <asm/fixmap.h>
-#include <asm/pgtable.h>
-#include <asm/tlbflush.h>
-
-#ifdef CONFIG_X86_64
-
-unsigned long __phys_addr(unsigned long x)
-{
-	if (x >= __START_KERNEL_map)
-		return x - __START_KERNEL_map + phys_base;
-	return x - PAGE_OFFSET;
-}
-EXPORT_SYMBOL(__phys_addr);
-
-#endif
-
-/*
- * Fix up the linear direct mapping of the kernel to avoid cache attribute
- * conflicts.
- */
-static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
-			       pgprot_t prot)
-{
-	unsigned long npages, vaddr, last_addr = phys_addr + size - 1;
-	int err, level;
-
-	/* No change for pages after the last mapping */
-	if (last_addr >= (max_pfn_mapped << PAGE_SHIFT))
-		return 0;
-
-	npages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-	vaddr = (unsigned long) __va(phys_addr);
-
-	/*
-	 * If there is no identity map for this address,
-	 * change_page_attr_addr is unnecessary
-	 */
-	if (!lookup_address(vaddr, &level))
-		return 0;
-
-	/*
-	 * Must use an address here and not struct page because the
-	 * phys addr can be a in hole between nodes and not have a
-	 * memmap entry.
-	 */
-	err = change_page_attr_addr(vaddr, npages, prot);
-
-	if (!err)
-		global_flush_tlb();
-
-	return err;
-}
-
-/*
- * Remap an arbitrary physical address space into the kernel virtual
- * address space. Needed when the kernel wants to access high addresses
- * directly.
- *
- * NOTE! We need to allow non-page-aligned mappings too: we will obviously
- * have to convert them into an offset in a page-aligned mapping, but the
- * caller shouldn't need to know that small detail.
- */
-void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
-			unsigned long flags)
-{
-	void __iomem *addr;
-	struct vm_struct *area;
-	unsigned long offset, last_addr;
-	pgprot_t pgprot;
-
-	/* Don't allow wraparound or zero size */
-	last_addr = phys_addr + size - 1;
-	if (!size || last_addr < phys_addr)
-		return NULL;
-
-	/*
-	 * Don't remap the low PCI/ISA area, it's always mapped..
-	 */
-	if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
-		return (__force void __iomem *)phys_to_virt(phys_addr);
-
-#ifdef CONFIG_X86_32
-	/*
-	 * Don't allow anybody to remap normal RAM that we're using..
-	 */
-	if (phys_addr <= virt_to_phys(high_memory - 1)) {
-		char *t_addr, *t_end;
-		struct page *page;
-
-		t_addr = __va(phys_addr);
-		t_end = t_addr + (size - 1);
-
-		for (page = virt_to_page(t_addr);
-		     page <= virt_to_page(t_end); page++)
-			if (!PageReserved(page))
-				return NULL;
-	}
-#endif
-
-	pgprot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
-
-	/*
-	 * Mappings have to be page-aligned
-	 */
-	offset = phys_addr & ~PAGE_MASK;
-	phys_addr &= PAGE_MASK;
-	size = PAGE_ALIGN(last_addr+1) - phys_addr;
-
-	/*
-	 * Ok, go for it..
-	 */
-	area = get_vm_area(size, VM_IOREMAP);
-	if (!area)
-		return NULL;
-	area->phys_addr = phys_addr;
-	addr = (void __iomem *) area->addr;
-	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
-			       phys_addr, pgprot)) {
-		remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
-		return NULL;
-	}
-
-	if (ioremap_change_attr(phys_addr, size, pgprot) < 0) {
-		vunmap(addr);
-		return NULL;
-	}
-
-	return (void __iomem *) (offset + (char __iomem *)addr);
-}
-EXPORT_SYMBOL(__ioremap);
-
-/**
- * ioremap_nocache     -   map bus memory into CPU space
- * @offset:    bus address of the memory
- * @size:      size of the resource to map
- *
- * ioremap_nocache performs a platform specific sequence of operations to
- * make bus memory CPU accessible via the readb/readw/readl/writeb/
- * writew/writel functions and the other mmio helpers. The returned
- * address is not guaranteed to be usable directly as a virtual
- * address.
- *
- * This version of ioremap ensures that the memory is marked uncachable
- * on the CPU as well as honouring existing caching rules from things like
- * the PCI bus. Note that there are other caches and buffers on many
- * busses. In particular driver authors should read up on PCI writes
- *
- * It's useful if some control registers are in such an area and
- * write combining or read caching is not desirable:
- *
- * Must be freed with iounmap.
- */
-void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
-{
-	return __ioremap(phys_addr, size, _PAGE_PCD | _PAGE_PWT);
-}
-EXPORT_SYMBOL(ioremap_nocache);
-
-/**
- * iounmap - Free a IO remapping
- * @addr: virtual address from ioremap_*
- *
- * Caller must ensure there is only one unmapping for the same pointer.
- */
-void iounmap(volatile void __iomem *addr)
-{
-	struct vm_struct *p, *o;
-
-	if ((void __force *)addr <= high_memory)
-		return;
-
-	/*
-	 * __ioremap special-cases the PCI/ISA range by not instantiating a
-	 * vm_area and by simply returning an address into the kernel mapping
-	 * of ISA space.   So handle that here.
-	 */
-	if (addr >= phys_to_virt(ISA_START_ADDRESS) &&
-	    addr < phys_to_virt(ISA_END_ADDRESS))
-		return;
-
-	addr = (volatile void __iomem *)
-		(PAGE_MASK & (unsigned long __force)addr);
-
-	/* Use the vm area unlocked, assuming the caller
-	   ensures there isn't another iounmap for the same address
-	   in parallel. Reuse of the virtual address is prevented by
-	   leaving it in the global lists until we're done with it.
-	   cpa takes care of the direct mappings. */
-	read_lock(&vmlist_lock);
-	for (p = vmlist; p; p = p->next) {
-		if (p->addr == addr)
-			break;
-	}
-	read_unlock(&vmlist_lock);
-
-	if (!p) {
-		printk(KERN_ERR "iounmap: bad address %p\n", addr);
-		dump_stack();
-		return;
-	}
-
-	/* Reset the direct mapping. Can block */
-	ioremap_change_attr(p->phys_addr, p->size, PAGE_KERNEL);
-
-	/* Finally remove it */
-	o = remove_vm_area((void *)addr);
-	BUG_ON(p != o || o == NULL);
-	kfree(p);
-}
-EXPORT_SYMBOL(iounmap);
-
-#ifdef CONFIG_X86_32
-
-int __initdata early_ioremap_debug;
-
-static int __init early_ioremap_debug_setup(char *str)
-{
-	early_ioremap_debug = 1;
-
-	return 0;
-}
-early_param("early_ioremap_debug", early_ioremap_debug_setup);
-
-static __initdata int after_paging_init;
-static __initdata unsigned long bm_pte[1024]
-				__attribute__((aligned(PAGE_SIZE)));
-
-static inline unsigned long * __init early_ioremap_pgd(unsigned long addr)
-{
-	return (unsigned long *)swapper_pg_dir + ((addr >> 22) & 1023);
-}
-
-static inline unsigned long * __init early_ioremap_pte(unsigned long addr)
-{
-	return bm_pte + ((addr >> PAGE_SHIFT) & 1023);
-}
-
-void __init early_ioremap_init(void)
-{
-	unsigned long *pgd;
-
-	if (early_ioremap_debug)
-		printk(KERN_DEBUG "early_ioremap_init()\n");
-
-	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
-	*pgd = __pa(bm_pte) | _PAGE_TABLE;
-	memset(bm_pte, 0, sizeof(bm_pte));
-	/*
-	 * The boot-ioremap range spans multiple pgds, for which
-	 * we are not prepared:
-	 */
-	if (pgd != early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END))) {
-		WARN_ON(1);
-		printk(KERN_WARNING "pgd %p != %p\n",
-		       pgd, early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
-		printk(KERN_WARNING "fix_to_virt(FIX_BTMAP_BEGIN): %08lx\n",
-		       fix_to_virt(FIX_BTMAP_BEGIN));
-		printk(KERN_WARNING "fix_to_virt(FIX_BTMAP_END):   %08lx\n",
-		       fix_to_virt(FIX_BTMAP_END));
-
-		printk(KERN_WARNING "FIX_BTMAP_END:       %d\n", FIX_BTMAP_END);
-		printk(KERN_WARNING "FIX_BTMAP_BEGIN:     %d\n",
-		       FIX_BTMAP_BEGIN);
-	}
-}
-
-void __init early_ioremap_clear(void)
-{
-	unsigned long *pgd;
-
-	if (early_ioremap_debug)
-		printk(KERN_DEBUG "early_ioremap_clear()\n");
-
-	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
-	*pgd = 0;
-	__flush_tlb_all();
-}
-
-void __init early_ioremap_reset(void)
-{
-	enum fixed_addresses idx;
-	unsigned long *pte, phys, addr;
-
-	after_paging_init = 1;
-	for (idx = FIX_BTMAP_BEGIN; idx >= FIX_BTMAP_END; idx--) {
-		addr = fix_to_virt(idx);
-		pte = early_ioremap_pte(addr);
-		if (!*pte & _PAGE_PRESENT) {
-			phys = *pte & PAGE_MASK;
-			set_fixmap(idx, phys);
-		}
-	}
-}
-
-static void __init __early_set_fixmap(enum fixed_addresses idx,
-				   unsigned long phys, pgprot_t flags)
-{
-	unsigned long *pte, addr = __fix_to_virt(idx);
-
-	if (idx >= __end_of_fixed_addresses) {
-		BUG();
-		return;
-	}
-	pte = early_ioremap_pte(addr);
-	if (pgprot_val(flags))
-		*pte = (phys & PAGE_MASK) | pgprot_val(flags);
-	else
-		*pte = 0;
-	__flush_tlb_one(addr);
-}
-
-static inline void __init early_set_fixmap(enum fixed_addresses idx,
-					unsigned long phys)
-{
-	if (after_paging_init)
-		set_fixmap(idx, phys);
-	else
-		__early_set_fixmap(idx, phys, PAGE_KERNEL);
-}
-
-static inline void __init early_clear_fixmap(enum fixed_addresses idx)
-{
-	if (after_paging_init)
-		clear_fixmap(idx);
-	else
-		__early_set_fixmap(idx, 0, __pgprot(0));
-}
-
-
-int __initdata early_ioremap_nested;
-
-static int __init check_early_ioremap_leak(void)
-{
-	if (!early_ioremap_nested)
-		return 0;
-
-	printk(KERN_WARNING
-	       "Debug warning: early ioremap leak of %d areas detected.\n",
-	       early_ioremap_nested);
-	printk(KERN_WARNING
-	       "please boot with early_ioremap_debug and report the dmesg.\n");
-	WARN_ON(1);
-
-	return 1;
-}
-late_initcall(check_early_ioremap_leak);
-
-void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
-{
-	unsigned long offset, last_addr;
-	unsigned int nrpages, nesting;
-	enum fixed_addresses idx0, idx;
-
-	WARN_ON(system_state != SYSTEM_BOOTING);
-
-	nesting = early_ioremap_nested;
-	if (early_ioremap_debug) {
-		printk(KERN_DEBUG "early_ioremap(%08lx, %08lx) [%d] => ",
-		       phys_addr, size, nesting);
-		dump_stack();
-	}
-
-	/* Don't allow wraparound or zero size */
-	last_addr = phys_addr + size - 1;
-	if (!size || last_addr < phys_addr) {
-		WARN_ON(1);
-		return NULL;
-	}
-
-	if (nesting >= FIX_BTMAPS_NESTING) {
-		WARN_ON(1);
-		return NULL;
-	}
-	early_ioremap_nested++;
-	/*
-	 * Mappings have to be page-aligned
-	 */
-	offset = phys_addr & ~PAGE_MASK;
-	phys_addr &= PAGE_MASK;
-	size = PAGE_ALIGN(last_addr) - phys_addr;
-
-	/*
-	 * Mappings have to fit in the FIX_BTMAP area.
-	 */
-	nrpages = size >> PAGE_SHIFT;
-	if (nrpages > NR_FIX_BTMAPS) {
-		WARN_ON(1);
-		return NULL;
-	}
-
-	/*
-	 * Ok, go for it..
-	 */
-	idx0 = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*nesting;
-	idx = idx0;
-	while (nrpages > 0) {
-		early_set_fixmap(idx, phys_addr);
-		phys_addr += PAGE_SIZE;
-		--idx;
-		--nrpages;
-	}
-	if (early_ioremap_debug)
-		printk(KERN_CONT "%08lx + %08lx\n", offset, fix_to_virt(idx0));
-
-	return (void *) (offset + fix_to_virt(idx0));
-}
-
-void __init early_iounmap(void *addr, unsigned long size)
-{
-	unsigned long virt_addr;
-	unsigned long offset;
-	unsigned int nrpages;
-	enum fixed_addresses idx;
-	unsigned int nesting;
-
-	nesting = --early_ioremap_nested;
-	WARN_ON(nesting < 0);
-
-	if (early_ioremap_debug) {
-		printk(KERN_DEBUG "early_iounmap(%p, %08lx) [%d]\n", addr,
-		       size, nesting);
-		dump_stack();
-	}
-
-	virt_addr = (unsigned long)addr;
-	if (virt_addr < fix_to_virt(FIX_BTMAP_BEGIN)) {
-		WARN_ON(1);
-		return;
-	}
-	offset = virt_addr & ~PAGE_MASK;
-	nrpages = PAGE_ALIGN(offset + size - 1) >> PAGE_SHIFT;
-
-	idx = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*nesting;
-	while (nrpages > 0) {
-		early_clear_fixmap(idx);
-		--idx;
-		--nrpages;
-	}
-}
-
-void __this_fixmap_does_not_exist(void)
-{
-	WARN_ON(1);
-}
-
-#endif /* CONFIG_X86_32 */
diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
deleted file mode 100644
index f4a2082568c8..000000000000
--- a/arch/x86/mm/ioremap_64.c
+++ /dev/null
@@ -1,463 +0,0 @@
-/*
- * Re-map IO memory to kernel address space so that we can access it.
- * This is needed for high PCI addresses that aren't mapped in the
- * 640k-1MB IO memory area on PC's
- *
- * (C) Copyright 1995 1996 Linus Torvalds
- */
-
-#include <linux/bootmem.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-
-#include <asm/cacheflush.h>
-#include <asm/e820.h>
-#include <asm/fixmap.h>
-#include <asm/pgtable.h>
-#include <asm/tlbflush.h>
-
-#ifdef CONFIG_X86_64
-
-unsigned long __phys_addr(unsigned long x)
-{
-	if (x >= __START_KERNEL_map)
-		return x - __START_KERNEL_map + phys_base;
-	return x - PAGE_OFFSET;
-}
-EXPORT_SYMBOL(__phys_addr);
-
-#endif
-
-/*
- * Fix up the linear direct mapping of the kernel to avoid cache attribute
- * conflicts.
- */
-static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
-			       pgprot_t prot)
-{
-	unsigned long npages, vaddr, last_addr = phys_addr + size - 1;
-	int err, level;
-
-	/* No change for pages after the last mapping */
-	if (last_addr >= (max_pfn_mapped << PAGE_SHIFT))
-		return 0;
-
-	npages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-	vaddr = (unsigned long) __va(phys_addr);
-
-	/*
-	 * If there is no identity map for this address,
-	 * change_page_attr_addr is unnecessary
-	 */
-	if (!lookup_address(vaddr, &level))
-		return 0;
-
-	/*
-	 * Must use an address here and not struct page because the
-	 * phys addr can be a in hole between nodes and not have a
-	 * memmap entry.
-	 */
-	err = change_page_attr_addr(vaddr, npages, prot);
-
-	if (!err)
-		global_flush_tlb();
-
-	return err;
-}
-
-/*
- * Remap an arbitrary physical address space into the kernel virtual
- * address space. Needed when the kernel wants to access high addresses
- * directly.
- *
- * NOTE! We need to allow non-page-aligned mappings too: we will obviously
- * have to convert them into an offset in a page-aligned mapping, but the
- * caller shouldn't need to know that small detail.
- */
-void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
-			unsigned long flags)
-{
-	void __iomem *addr;
-	struct vm_struct *area;
-	unsigned long offset, last_addr;
-	pgprot_t pgprot;
-
-	/* Don't allow wraparound or zero size */
-	last_addr = phys_addr + size - 1;
-	if (!size || last_addr < phys_addr)
-		return NULL;
-
-	/*
-	 * Don't remap the low PCI/ISA area, it's always mapped..
-	 */
-	if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
-		return (__force void __iomem *)phys_to_virt(phys_addr);
-
-#ifdef CONFIG_X86_32
-	/*
-	 * Don't allow anybody to remap normal RAM that we're using..
-	 */
-	if (phys_addr <= virt_to_phys(high_memory - 1)) {
-		char *t_addr, *t_end;
-		struct page *page;
-
-		t_addr = __va(phys_addr);
-		t_end = t_addr + (size - 1);
-
-		for (page = virt_to_page(t_addr);
-		     page <= virt_to_page(t_end); page++)
-			if (!PageReserved(page))
-				return NULL;
-	}
-#endif
-
-	pgprot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
-
-	/*
-	 * Mappings have to be page-aligned
-	 */
-	offset = phys_addr & ~PAGE_MASK;
-	phys_addr &= PAGE_MASK;
-	size = PAGE_ALIGN(last_addr+1) - phys_addr;
-
-	/*
-	 * Ok, go for it..
-	 */
-	area = get_vm_area(size, VM_IOREMAP);
-	if (!area)
-		return NULL;
-	area->phys_addr = phys_addr;
-	addr = (void __iomem *) area->addr;
-	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
-			       phys_addr, pgprot)) {
-		remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
-		return NULL;
-	}
-
-	if (ioremap_change_attr(phys_addr, size, pgprot) < 0) {
-		vunmap(addr);
-		return NULL;
-	}
-
-	return (void __iomem *) (offset + (char __iomem *)addr);
-}
-EXPORT_SYMBOL(__ioremap);
-
-/**
- * ioremap_nocache     -   map bus memory into CPU space
- * @offset:    bus address of the memory
- * @size:      size of the resource to map
- *
- * ioremap_nocache performs a platform specific sequence of operations to
- * make bus memory CPU accessible via the readb/readw/readl/writeb/
- * writew/writel functions and the other mmio helpers. The returned
- * address is not guaranteed to be usable directly as a virtual
- * address.
- *
- * This version of ioremap ensures that the memory is marked uncachable
- * on the CPU as well as honouring existing caching rules from things like
- * the PCI bus. Note that there are other caches and buffers on many
- * busses. In particular driver authors should read up on PCI writes
- *
- * It's useful if some control registers are in such an area and
- * write combining or read caching is not desirable:
- *
- * Must be freed with iounmap.
- */
-void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
-{
-	return __ioremap(phys_addr, size, _PAGE_PCD | _PAGE_PWT);
-}
-EXPORT_SYMBOL(ioremap_nocache);
-
-/**
- * iounmap - Free a IO remapping
- * @addr: virtual address from ioremap_*
- *
- * Caller must ensure there is only one unmapping for the same pointer.
- */
-void iounmap(volatile void __iomem *addr)
-{
-	struct vm_struct *p, *o;
-
-	if ((void __force *)addr <= high_memory)
-		return;
-
-	/*
-	 * __ioremap special-cases the PCI/ISA range by not instantiating a
-	 * vm_area and by simply returning an address into the kernel mapping
-	 * of ISA space.   So handle that here.
-	 */
-	if (addr >= phys_to_virt(ISA_START_ADDRESS) &&
-	    addr < phys_to_virt(ISA_END_ADDRESS))
-		return;
-
-	addr = (volatile void __iomem *)
-		(PAGE_MASK & (unsigned long __force)addr);
-
-	/* Use the vm area unlocked, assuming the caller
-	   ensures there isn't another iounmap for the same address
-	   in parallel. Reuse of the virtual address is prevented by
-	   leaving it in the global lists until we're done with it.
-	   cpa takes care of the direct mappings. */
-	read_lock(&vmlist_lock);
-	for (p = vmlist; p; p = p->next) {
-		if (p->addr == addr)
-			break;
-	}
-	read_unlock(&vmlist_lock);
-
-	if (!p) {
-		printk(KERN_ERR "iounmap: bad address %p\n", addr);
-		dump_stack();
-		return;
-	}
-
-	/* Reset the direct mapping. Can block */
-	ioremap_change_attr(p->phys_addr, p->size, PAGE_KERNEL);
-
-	/* Finally remove it */
-	o = remove_vm_area((void *)addr);
-	BUG_ON(p != o || o == NULL);
-	kfree(p);
-}
-EXPORT_SYMBOL(iounmap);
-
-#ifdef CONFIG_X86_32
-
-int __initdata early_ioremap_debug;
-
-static int __init early_ioremap_debug_setup(char *str)
-{
-	early_ioremap_debug = 1;
-
-	return 0;
-}
-early_param("early_ioremap_debug", early_ioremap_debug_setup);
-
-static __initdata int after_paging_init;
-static __initdata unsigned long bm_pte[1024]
-				__attribute__((aligned(PAGE_SIZE)));
-
-static inline unsigned long * __init early_ioremap_pgd(unsigned long addr)
-{
-	return (unsigned long *)swapper_pg_dir + ((addr >> 22) & 1023);
-}
-
-static inline unsigned long * __init early_ioremap_pte(unsigned long addr)
-{
-	return bm_pte + ((addr >> PAGE_SHIFT) & 1023);
-}
-
-void __init early_ioremap_init(void)
-{
-	unsigned long *pgd;
-
-	if (early_ioremap_debug)
-		printk(KERN_DEBUG "early_ioremap_init()\n");
-
-	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
-	*pgd = __pa(bm_pte) | _PAGE_TABLE;
-	memset(bm_pte, 0, sizeof(bm_pte));
-	/*
-	 * The boot-ioremap range spans multiple pgds, for which
-	 * we are not prepared:
-	 */
-	if (pgd != early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END))) {
-		WARN_ON(1);
-		printk(KERN_WARNING "pgd %p != %p\n",
-		       pgd, early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
-		printk(KERN_WARNING "fix_to_virt(FIX_BTMAP_BEGIN): %08lx\n",
-		       fix_to_virt(FIX_BTMAP_BEGIN));
-		printk(KERN_WARNING "fix_to_virt(FIX_BTMAP_END):   %08lx\n",
-		       fix_to_virt(FIX_BTMAP_END));
-
-		printk(KERN_WARNING "FIX_BTMAP_END:       %d\n", FIX_BTMAP_END);
-		printk(KERN_WARNING "FIX_BTMAP_BEGIN:     %d\n",
-		       FIX_BTMAP_BEGIN);
-	}
-}
-
-void __init early_ioremap_clear(void)
-{
-	unsigned long *pgd;
-
-	if (early_ioremap_debug)
-		printk(KERN_DEBUG "early_ioremap_clear()\n");
-
-	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
-	*pgd = 0;
-	__flush_tlb_all();
-}
-
-void __init early_ioremap_reset(void)
-{
-	enum fixed_addresses idx;
-	unsigned long *pte, phys, addr;
-
-	after_paging_init = 1;
-	for (idx = FIX_BTMAP_BEGIN; idx >= FIX_BTMAP_END; idx--) {
-		addr = fix_to_virt(idx);
-		pte = early_ioremap_pte(addr);
-		if (!*pte & _PAGE_PRESENT) {
-			phys = *pte & PAGE_MASK;
-			set_fixmap(idx, phys);
-		}
-	}
-}
-
-static void __init __early_set_fixmap(enum fixed_addresses idx,
-				   unsigned long phys, pgprot_t flags)
-{
-	unsigned long *pte, addr = __fix_to_virt(idx);
-
-	if (idx >= __end_of_fixed_addresses) {
-		BUG();
-		return;
-	}
-	pte = early_ioremap_pte(addr);
-	if (pgprot_val(flags))
-		*pte = (phys & PAGE_MASK) | pgprot_val(flags);
-	else
-		*pte = 0;
-	__flush_tlb_one(addr);
-}
-
-static inline void __init early_set_fixmap(enum fixed_addresses idx,
-					unsigned long phys)
-{
-	if (after_paging_init)
-		set_fixmap(idx, phys);
-	else
-		__early_set_fixmap(idx, phys, PAGE_KERNEL);
-}
-
-static inline void __init early_clear_fixmap(enum fixed_addresses idx)
-{
-	if (after_paging_init)
-		clear_fixmap(idx);
-	else
-		__early_set_fixmap(idx, 0, __pgprot(0));
-}
-
-
-int __initdata early_ioremap_nested;
-
-static int __init check_early_ioremap_leak(void)
-{
-	if (!early_ioremap_nested)
-		return 0;
-
-	printk(KERN_WARNING
-	       "Debug warning: early ioremap leak of %d areas detected.\n",
-	       early_ioremap_nested);
-	printk(KERN_WARNING
-	       "please boot with early_ioremap_debug and report the dmesg.\n");
-	WARN_ON(1);
-
-	return 1;
-}
-late_initcall(check_early_ioremap_leak);
-
-void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
-{
-	unsigned long offset, last_addr;
-	unsigned int nrpages, nesting;
-	enum fixed_addresses idx0, idx;
-
-	WARN_ON(system_state != SYSTEM_BOOTING);
-
-	nesting = early_ioremap_nested;
-	if (early_ioremap_debug) {
-		printk(KERN_DEBUG "early_ioremap(%08lx, %08lx) [%d] => ",
-		       phys_addr, size, nesting);
-		dump_stack();
-	}
-
-	/* Don't allow wraparound or zero size */
-	last_addr = phys_addr + size - 1;
-	if (!size || last_addr < phys_addr) {
-		WARN_ON(1);
-		return NULL;
-	}
-
-	if (nesting >= FIX_BTMAPS_NESTING) {
-		WARN_ON(1);
-		return NULL;
-	}
-	early_ioremap_nested++;
-	/*
-	 * Mappings have to be page-aligned
-	 */
-	offset = phys_addr & ~PAGE_MASK;
-	phys_addr &= PAGE_MASK;
-	size = PAGE_ALIGN(last_addr) - phys_addr;
-
-	/*
-	 * Mappings have to fit in the FIX_BTMAP area.
-	 */
-	nrpages = size >> PAGE_SHIFT;
-	if (nrpages > NR_FIX_BTMAPS) {
-		WARN_ON(1);
-		return NULL;
-	}
-
-	/*
-	 * Ok, go for it..
-	 */
-	idx0 = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*nesting;
-	idx = idx0;
-	while (nrpages > 0) {
-		early_set_fixmap(idx, phys_addr);
-		phys_addr += PAGE_SIZE;
-		--idx;
-		--nrpages;
-	}
-	if (early_ioremap_debug)
-		printk(KERN_CONT "%08lx + %08lx\n", offset, fix_to_virt(idx0));
-
-	return (void *) (offset + fix_to_virt(idx0));
-}
-
-void __init early_iounmap(void *addr, unsigned long size)
-{
-	unsigned long virt_addr;
-	unsigned long offset;
-	unsigned int nrpages;
-	enum fixed_addresses idx;
-	unsigned int nesting;
-
-	nesting = --early_ioremap_nested;
-	WARN_ON(nesting < 0);
-
-	if (early_ioremap_debug) {
-		printk(KERN_DEBUG "early_iounmap(%p, %08lx) [%d]\n", addr,
-		       size, nesting);
-		dump_stack();
-	}
-
-	virt_addr = (unsigned long)addr;
-	if (virt_addr < fix_to_virt(FIX_BTMAP_BEGIN)) {
-		WARN_ON(1);
-		return;
-	}
-	offset = virt_addr & ~PAGE_MASK;
-	nrpages = PAGE_ALIGN(offset + size - 1) >> PAGE_SHIFT;
-
-	idx = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*nesting;
-	while (nrpages > 0) {
-		early_clear_fixmap(idx);
-		--idx;
-		--nrpages;
-	}
-}
-
-void __this_fixmap_does_not_exist(void)
-{
-	WARN_ON(1);
-}
-
-#endif /* CONFIG_X86_32 */
-- 
cgit v1.2.3-59-g8ed1b


From e81d5dc41b67349c06e80658227c9156738f0df1 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:06 +0100
Subject: x86: cpa: move clflush_cache_range()

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 00f6f341e291..4208571334db 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -9,14 +9,6 @@
 #include <linux/slab.h>
 #include <linux/mm.h>
 
-void clflush_cache_range(void *addr, int size)
-{
-	int i;
-
-	for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
-		clflush(addr+i);
-}
-
 #include <asm/processor.h>
 #include <asm/tlbflush.h>
 #include <asm/sections.h>
@@ -290,6 +282,14 @@ int change_page_attr(struct page *page, int numpages, pgprot_t prot)
 }
 EXPORT_SYMBOL(change_page_attr);
 
+void clflush_cache_range(void *addr, int size)
+{
+	int i;
+
+	for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
+		clflush(addr+i);
+}
+
 static void flush_kernel_map(void *arg)
 {
 	/*
-- 
cgit v1.2.3-59-g8ed1b


From 75cbade8ea3127a84e3da7c2c15808e54f0df7e8 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@infradead.org>
Date: Wed, 30 Jan 2008 13:34:06 +0100
Subject: x86: a new API for drivers/etc to control cache and other page
 attributes

Right now, if drivers or other code want to change, say, a cache attribute of a
page, the only API they have is change_page_attr(). c-p-a is a really bad API
for this, because it forces the caller to know *ALL* the attributes he wants
for the page, not just the 1 thing he wants to change. So code that wants to
set a page uncachable, needs to be aware of the NX status as well etc etc etc.

This patch introduces a set of new APIs for this, set_pages_<attr> and
set_memory_<attr>, that offer a logical change to the user, and leave all
attributes not implied by the requested logical change alone.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/pageattr.c       | 197 +++++++++++++++++++++++++++++++++++++++++++
 include/asm-x86/cacheflush.h |  15 ++++
 2 files changed, 212 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 4208571334db..f3c9510b8d92 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -211,6 +211,8 @@ repeat:
  * mem_map entry (pfn_valid() is false).
  *
  * See change_page_attr() documentation for more details.
+ *
+ * Modules and drivers should use the set_memory_* APIs instead.
  */
 
 int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
@@ -273,6 +275,8 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
  * (e.g. in user space) * This function only deals with the kernel linear map.
  *
  * For MMIO areas without mem_map use change_page_attr_addr() instead.
+ *
+ * Modules and drivers should use the set_pages_* APIs instead.
  */
 int change_page_attr(struct page *page, int numpages, pgprot_t prot)
 {
@@ -282,6 +286,199 @@ int change_page_attr(struct page *page, int numpages, pgprot_t prot)
 }
 EXPORT_SYMBOL(change_page_attr);
 
+/**
+ * change_page_attr_set - Change page table attributes in the linear mapping.
+ * @addr: Virtual address in linear mapping.
+ * @numpages: Number of pages to change
+ * @prot: Protection/caching type bits to set (PAGE_*)
+ *
+ * Returns 0 on success, otherwise a negated errno.
+ *
+ * This should be used when a page is mapped with a different caching policy
+ * than write-back somewhere - some CPUs do not like it when mappings with
+ * different caching policies exist. This changes the page attributes of the
+ * in kernel linear mapping too.
+ *
+ * Caller must call global_flush_tlb() later to make the changes active.
+ *
+ * The caller needs to ensure that there are no conflicting mappings elsewhere
+ * (e.g. in user space) * This function only deals with the kernel linear map.
+ *
+ * This function is different from change_page_attr() in that only selected bits
+ * are impacted, all other bits remain as is.
+ */
+int change_page_attr_set(unsigned long addr, int numpages, pgprot_t prot)
+{
+	pgprot_t current_prot;
+	int level;
+	pte_t *pte;
+
+	pte = lookup_address(addr, &level);
+	if (pte)
+		current_prot = pte_pgprot(*pte);
+	else
+		pgprot_val(current_prot) = 0;
+
+	pgprot_val(prot) = pgprot_val(current_prot) | pgprot_val(prot);
+
+	return change_page_attr_addr(addr, numpages, prot);
+}
+
+/**
+ * change_page_attr_clear - Change page table attributes in the linear mapping.
+ * @addr: Virtual address in linear mapping.
+ * @numpages: Number of pages to change
+ * @prot: Protection/caching type bits to clear (PAGE_*)
+ *
+ * Returns 0 on success, otherwise a negated errno.
+ *
+ * This should be used when a page is mapped with a different caching policy
+ * than write-back somewhere - some CPUs do not like it when mappings with
+ * different caching policies exist. This changes the page attributes of the
+ * in kernel linear mapping too.
+ *
+ * Caller must call global_flush_tlb() later to make the changes active.
+ *
+ * The caller needs to ensure that there are no conflicting mappings elsewhere
+ * (e.g. in user space) * This function only deals with the kernel linear map.
+ *
+ * This function is different from change_page_attr() in that only selected bits
+ * are impacted, all other bits remain as is.
+ */
+int change_page_attr_clear(unsigned long addr, int numpages, pgprot_t prot)
+{
+	pgprot_t current_prot;
+	int level;
+	pte_t *pte;
+
+	pte = lookup_address(addr, &level);
+	if (pte)
+		current_prot = pte_pgprot(*pte);
+	else
+		pgprot_val(current_prot) = 0;
+
+	pgprot_val(prot) = pgprot_val(current_prot) & ~pgprot_val(prot);
+
+	return change_page_attr_addr(addr, numpages, prot);
+}
+
+
+
+int set_memory_uc(unsigned long addr, int numpages)
+{
+	pgprot_t uncached;
+
+	pgprot_val(uncached) = _PAGE_PCD | _PAGE_PWT;
+	return change_page_attr_set(addr, numpages, uncached);
+}
+EXPORT_SYMBOL(set_memory_uc);
+
+int set_memory_wb(unsigned long addr, int numpages)
+{
+	pgprot_t uncached;
+
+	pgprot_val(uncached) = _PAGE_PCD | _PAGE_PWT;
+	return change_page_attr_clear(addr, numpages, uncached);
+}
+EXPORT_SYMBOL(set_memory_wb);
+
+int set_memory_x(unsigned long addr, int numpages)
+{
+	pgprot_t nx;
+
+	pgprot_val(nx) = _PAGE_NX;
+	return change_page_attr_clear(addr, numpages, nx);
+}
+EXPORT_SYMBOL(set_memory_x);
+
+int set_memory_nx(unsigned long addr, int numpages)
+{
+	pgprot_t nx;
+
+	pgprot_val(nx) = _PAGE_NX;
+	return change_page_attr_set(addr, numpages, nx);
+}
+EXPORT_SYMBOL(set_memory_nx);
+
+int set_memory_ro(unsigned long addr, int numpages)
+{
+	pgprot_t rw;
+
+	pgprot_val(rw) = _PAGE_RW;
+	return change_page_attr_clear(addr, numpages, rw);
+}
+EXPORT_SYMBOL(set_memory_ro);
+
+int set_memory_rw(unsigned long addr, int numpages)
+{
+	pgprot_t rw;
+
+	pgprot_val(rw) = _PAGE_RW;
+	return change_page_attr_set(addr, numpages, rw);
+}
+EXPORT_SYMBOL(set_memory_rw);
+
+int set_pages_uc(struct page *page, int numpages)
+{
+	unsigned long addr = (unsigned long)page_address(page);
+	pgprot_t uncached;
+
+	pgprot_val(uncached) = _PAGE_PCD | _PAGE_PWT;
+	return change_page_attr_set(addr, numpages, uncached);
+}
+EXPORT_SYMBOL(set_pages_uc);
+
+int set_pages_wb(struct page *page, int numpages)
+{
+	unsigned long addr = (unsigned long)page_address(page);
+	pgprot_t uncached;
+
+	pgprot_val(uncached) = _PAGE_PCD | _PAGE_PWT;
+	return change_page_attr_clear(addr, numpages, uncached);
+}
+EXPORT_SYMBOL(set_pages_wb);
+
+int set_pages_x(struct page *page, int numpages)
+{
+	unsigned long addr = (unsigned long)page_address(page);
+	pgprot_t nx;
+
+	pgprot_val(nx) = _PAGE_NX;
+	return change_page_attr_clear(addr, numpages, nx);
+}
+EXPORT_SYMBOL(set_pages_x);
+
+int set_pages_nx(struct page *page, int numpages)
+{
+	unsigned long addr = (unsigned long)page_address(page);
+	pgprot_t nx;
+
+	pgprot_val(nx) = _PAGE_NX;
+	return change_page_attr_set(addr, numpages, nx);
+}
+EXPORT_SYMBOL(set_pages_nx);
+
+int set_pages_ro(struct page *page, int numpages)
+{
+	unsigned long addr = (unsigned long)page_address(page);
+	pgprot_t rw;
+
+	pgprot_val(rw) = _PAGE_RW;
+	return change_page_attr_clear(addr, numpages, rw);
+}
+EXPORT_SYMBOL(set_pages_ro);
+
+int set_pages_rw(struct page *page, int numpages)
+{
+	unsigned long addr = (unsigned long)page_address(page);
+	pgprot_t rw;
+
+	pgprot_val(rw) = _PAGE_RW;
+	return change_page_attr_set(addr, numpages, rw);
+}
+EXPORT_SYMBOL(set_pages_rw);
+
+
 void clflush_cache_range(void *addr, int size)
 {
 	int i;
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index fccb563e2305..7b928d55c190 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -27,6 +27,21 @@
 void global_flush_tlb(void);
 int change_page_attr(struct page *page, int numpages, pgprot_t prot);
 int change_page_attr_addr(unsigned long addr, int numpages, pgprot_t prot);
+
+int set_pages_uc(struct page *page, int numpages);
+int set_pages_wb(struct page *page, int numpages);
+int set_pages_x(struct page *page, int numpages);
+int set_pages_nx(struct page *page, int numpages);
+int set_pages_ro(struct page *page, int numpages);
+int set_pages_rw(struct page *page, int numpages);
+
+int set_memory_uc(unsigned long addr, int numpages);
+int set_memory_wb(unsigned long addr, int numpages);
+int set_memory_x(unsigned long addr, int numpages);
+int set_memory_nx(unsigned long addr, int numpages);
+int set_memory_ro(unsigned long addr, int numpages);
+int set_memory_rw(unsigned long addr, int numpages);
+
 void clflush_cache_range(void *addr, int size);
 
 #ifdef CONFIG_DEBUG_RODATA
-- 
cgit v1.2.3-59-g8ed1b


From 6d238cc4dc8a36a3915c26202fe49f58a0683fb9 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@infradead.org>
Date: Wed, 30 Jan 2008 13:34:06 +0100
Subject: x86: convert CPA users to the new set_page_ API

This patch converts various users of change_page_attr() to the new,
more intent driven set_page_*/set_memory_* API set.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/efi.c               |  8 ++++----
 arch/x86/kernel/pci-gart_64.c       |  3 +--
 arch/x86/mm/init_32.c               | 20 +++++++-------------
 arch/x86/mm/init_64.c               | 10 ++++------
 drivers/char/agp/intel-agp.c        |  6 +++---
 drivers/video/vermilion/vermilion.c |  9 +++------
 include/asm-x86/agp.h               |  4 ++--
 sound/pci/intel8x0.c                |  7 +++++--
 8 files changed, 29 insertions(+), 38 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index 57b57778bf60..a70fe77354b8 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -396,10 +396,10 @@ static void __init runtime_code_page_mkexec(void)
 		md = p;
 		end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
 		if (md->type == EFI_RUNTIME_SERVICES_CODE &&
-		    (end >> PAGE_SHIFT) <= max_pfn_mapped)
-			change_page_attr_addr(md->virt_addr,
-					      md->num_pages,
-					      PAGE_KERNEL_EXEC_NOCACHE);
+		    (end >> PAGE_SHIFT) <= max_pfn_mapped) {
+			set_memory_x(md->virt_addr, md->num_pages);
+			set_memory_uc(md->virt_addr, md->num_pages);
+		}
 	}
 	__flush_tlb_all();
 }
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 04ca5c5221d7..8860c6eba8ab 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -570,8 +570,7 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
 	gatt = (void *)__get_free_pages(GFP_KERNEL, get_order(gatt_size));
 	if (!gatt)
 		panic("Cannot allocate GATT table");
-	if (change_page_attr_addr((unsigned long)gatt, gatt_size >> PAGE_SHIFT,
-				  PAGE_KERNEL_NOCACHE))
+	if (set_memory_uc((unsigned long)gatt, gatt_size >> PAGE_SHIFT))
 		panic("Could not set GART PTEs to uncacheable pages");
 	global_flush_tlb();
 
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 016c8ccd1d8d..7c9bb3076b8a 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -770,34 +770,30 @@ void mark_rodata_ro(void)
 	if (num_possible_cpus() <= 1)
 #endif
 	{
-		change_page_attr(virt_to_page(start),
-		                 size >> PAGE_SHIFT, PAGE_KERNEL_RX);
+		set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
 		printk("Write protecting the kernel text: %luk\n", size >> 10);
 
 #ifdef CONFIG_CPA_DEBUG
 		global_flush_tlb();
 
 		printk("Testing CPA: Reverting %lx-%lx\n", start, start+size);
-		change_page_attr(virt_to_page(start), size>>PAGE_SHIFT,
-				 PAGE_KERNEL_EXEC);
+		set_pages_rw(virt_to_page(start), size>>PAGE_SHIFT);
 		global_flush_tlb();
 
 		printk("Testing CPA: write protecting again\n");
-		change_page_attr(virt_to_page(start), size>>PAGE_SHIFT,
-				PAGE_KERNEL_RX);
+		set_pages_ro(virt_to_page(start), size>>PAGE_SHIFT);
 		global_flush_tlb();
 #endif
 	}
 #endif
 	start += size;
 	size = (unsigned long)__end_rodata - start;
-	change_page_attr(virt_to_page(start),
-	                 size >> PAGE_SHIFT, PAGE_KERNEL_RO);
+	set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
 	printk("Write protecting the kernel read-only data: %luk\n",
 	       size >> 10);
 
 	/*
-	 * change_page_attr() requires a global_flush_tlb() call after it.
+	 * set_pages_*() requires a global_flush_tlb() call after it.
 	 * We do this after the printk so that if something went wrong in the
 	 * change, the printk gets out at least to give a better debug hint
 	 * of who is the culprit.
@@ -806,13 +802,11 @@ void mark_rodata_ro(void)
 
 #ifdef CONFIG_CPA_DEBUG
 	printk("Testing CPA: undo %lx-%lx\n", start, start + size);
-	change_page_attr(virt_to_page(start), size >> PAGE_SHIFT,
-				PAGE_KERNEL);
+	set_pages_rw(virt_to_page(start), size >> PAGE_SHIFT);
 	global_flush_tlb();
 
 	printk("Testing CPA: write protecting again\n");
-	change_page_attr(virt_to_page(start), size >> PAGE_SHIFT,
-				PAGE_KERNEL_RO);
+	set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
 	global_flush_tlb();
 #endif
 }
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index c250580a9432..05bb12db0b09 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -556,8 +556,6 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 		init_page_count(virt_to_page(addr));
 		memset((void *)(addr & ~(PAGE_SIZE-1)),
 			POISON_FREE_INITMEM, PAGE_SIZE);
-		if (addr >= __START_KERNEL_map)
-			change_page_attr_addr(addr, 1, __pgprot(0));
 		free_page(addr);
 		totalram_pages++;
 	}
@@ -594,13 +592,13 @@ void mark_rodata_ro(void)
 	if (end <= start)
 		return;
 
-	change_page_attr_addr(start, (end - start) >> PAGE_SHIFT, PAGE_KERNEL_RO);
+	set_memory_ro(start, (end - start) >> PAGE_SHIFT);
 
 	printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n",
 	       (end - start) >> 10);
 
 	/*
-	 * change_page_attr_addr() requires a global_flush_tlb() call after it.
+	 * set_memory_*() requires a global_flush_tlb() call after it.
 	 * We do this after the printk so that if something went wrong in the
 	 * change, the printk gets out at least to give a better debug hint
 	 * of who is the culprit.
@@ -609,11 +607,11 @@ void mark_rodata_ro(void)
 
 #ifdef CONFIG_CPA_DEBUG
 	printk("Testing CPA: undo %lx-%lx\n", start, end);
-	change_page_attr_addr(start, (end - start) >> PAGE_SHIFT, PAGE_KERNEL);
+	set_memory_rw(start, (end-start) >> PAGE_SHIFT);
 	global_flush_tlb();
 
 	printk("Testing CPA: again\n");
-	change_page_attr_addr(start, (end - start) >> PAGE_SHIFT, PAGE_KERNEL_RO);
+	set_memory_ro(start, (end-start) >> PAGE_SHIFT);
 	global_flush_tlb();
 #endif
 }
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 03eac1eb8e0f..c03a7143928f 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -210,8 +210,8 @@ static void *i8xx_alloc_pages(void)
 	if (page == NULL)
 		return NULL;
 
-	if (change_page_attr(page, 4, PAGE_KERNEL_NOCACHE) < 0) {
-		change_page_attr(page, 4, PAGE_KERNEL);
+	if (set_pages_uc(page, 4) < 0) {
+		set_pages_wb(page, 4);
 		global_flush_tlb();
 		__free_pages(page, 2);
 		return NULL;
@@ -230,7 +230,7 @@ static void i8xx_destroy_pages(void *addr)
 		return;
 
 	page = virt_to_page(addr);
-	change_page_attr(page, 4, PAGE_KERNEL);
+	set_pages_wb(page, 4);
 	global_flush_tlb();
 	put_page(page);
 	__free_pages(page, 2);
diff --git a/drivers/video/vermilion/vermilion.c b/drivers/video/vermilion/vermilion.c
index c31f549ebea0..fb72778dee48 100644
--- a/drivers/video/vermilion/vermilion.c
+++ b/drivers/video/vermilion/vermilion.c
@@ -88,9 +88,7 @@ static int vmlfb_alloc_vram_area(struct vram_area *va, unsigned max_order,
 {
 	gfp_t flags;
 	unsigned long i;
-	pgprot_t wc_pageprot;
 
-	wc_pageprot = PAGE_KERNEL_NOCACHE;
 	max_order++;
 	do {
 		/*
@@ -131,8 +129,7 @@ static int vmlfb_alloc_vram_area(struct vram_area *va, unsigned max_order,
 	 */
 
 	global_flush_tlb();
-	change_page_attr(virt_to_page(va->logical), va->size >> PAGE_SHIFT,
-			 wc_pageprot);
+	set_pages_uc(virt_to_page(va->logical), va->size >> PAGE_SHIFT);
 	global_flush_tlb();
 
 	printk(KERN_DEBUG MODULE_NAME
@@ -157,8 +154,8 @@ static void vmlfb_free_vram_area(struct vram_area *va)
 		 * Reset the linear kernel map caching policy.
 		 */
 
-		change_page_attr(virt_to_page(va->logical),
-				 va->size >> PAGE_SHIFT, PAGE_KERNEL);
+		set_pages_wb(virt_to_page(va->logical),
+				 va->size >> PAGE_SHIFT);
 		global_flush_tlb();
 
 		/*
diff --git a/include/asm-x86/agp.h b/include/asm-x86/agp.h
index 62df2a9e7130..f6df72561832 100644
--- a/include/asm-x86/agp.h
+++ b/include/asm-x86/agp.h
@@ -16,8 +16,8 @@
  * Caller's responsibility to call global_flush_tlb() for performance
  * reasons
  */
-#define map_page_into_agp(page) change_page_attr(page, 1, PAGE_KERNEL_NOCACHE)
-#define unmap_page_from_agp(page) change_page_attr(page, 1, PAGE_KERNEL)
+#define map_page_into_agp(page) set_pages_uc(page, 1)
+#define unmap_page_from_agp(page) set_pages_wb(page, 1)
 #define flush_agp_mappings() global_flush_tlb()
 
 /*
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index b4a38a3d855b..e5650905296e 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -711,11 +711,14 @@ static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ich
 static void fill_nocache(void *buf, int size, int nocache)
 {
 	size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-	change_page_attr(virt_to_page(buf), size, nocache ? PAGE_KERNEL_NOCACHE : PAGE_KERNEL);
+	if (nocache)
+		set_pages_uc(virt_to_page(buf), size);
+	else
+		set_pages_wb(virt_to_page(buf), size);
 	global_flush_tlb();
 }
 #else
-#define fill_nocache(buf,size,nocache)
+#define fill_nocache(buf, size, nocache) do { ; } while (0)
 #endif
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From e1271f686a0e376aa6ee97984c16f91a787e4480 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@infradead.org>
Date: Wed, 30 Jan 2008 13:34:06 +0100
Subject: x86: deprecate change_page_attr() for drivers

With the introduction of the new API, no driver or non-archcore code needs
to use c-p-a anymore, so this patch also deprecates the EXPORT_SYMBOL of CPA
(it's a horrible API after all).

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/pageattr.c       | 2 +-
 include/asm-x86/cacheflush.h | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index f3c9510b8d92..19f7f7a0b36f 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -284,7 +284,7 @@ int change_page_attr(struct page *page, int numpages, pgprot_t prot)
 
 	return change_page_attr_addr(addr, numpages, prot);
 }
-EXPORT_SYMBOL(change_page_attr);
+EXPORT_UNUSED_SYMBOL(change_page_attr); /* to be removed in 2.6.27 */
 
 /**
  * change_page_attr_set - Change page table attributes in the linear mapping.
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index 7b928d55c190..e79159bc0987 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -25,7 +25,8 @@
 	memcpy(dst, src, len)
 
 void global_flush_tlb(void);
-int change_page_attr(struct page *page, int numpages, pgprot_t prot);
+int __deprecated_for_modules change_page_attr(struct page *page, int numpages,
+								pgprot_t prot);
 int change_page_attr_addr(unsigned long addr, int numpages, pgprot_t prot);
 
 int set_pages_uc(struct page *page, int numpages);
-- 
cgit v1.2.3-59-g8ed1b


From 5f5192b9feeff6a96c97c143c3ca558fdbe2dc8e Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:06 +0100
Subject: x86: move page_is_ram() function

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_32.c     | 22 ----------------------
 arch/x86/mm/ioremap.c     | 24 ++++++++++++++++++++++++
 include/asm-x86/page.h    |  3 +++
 include/asm-x86/page_32.h |  1 -
 4 files changed, 27 insertions(+), 23 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 7c9bb3076b8a..f7b941c3b2c3 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -211,28 +211,6 @@ static inline int page_kills_ppro(unsigned long pagenr)
 	return 0;
 }
 
-int page_is_ram(unsigned long pagenr)
-{
-	int i;
-	unsigned long addr, end;
-
-	for (i = 0; i < e820.nr_map; i++) {
-
-		if (e820.map[i].type != E820_RAM)	/* not usable memory */
-			continue;
-		/*
-		 *	!!!FIXME!!! Some BIOSen report areas as RAM that
-		 *	are not. Notably the 640->1Mb area. We need a sanity
-		 *	check here.
-		 */
-		addr = (e820.map[i].addr+PAGE_SIZE-1) >> PAGE_SHIFT;
-		end = (e820.map[i].addr+e820.map[i].size) >> PAGE_SHIFT;
-		if  ((pagenr >= addr) && (pagenr < end))
-			return 1;
-	}
-	return 0;
-}
-
 #ifdef CONFIG_HIGHMEM
 pte_t *kmap_pte;
 pgprot_t kmap_prot;
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index f4a2082568c8..d3026e1906f9 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -31,6 +31,30 @@ EXPORT_SYMBOL(__phys_addr);
 
 #endif
 
+int page_is_ram(unsigned long pagenr)
+{
+	unsigned long addr, end;
+	int i;
+
+	for (i = 0; i < e820.nr_map; i++) {
+		/*
+		 * Not usable memory:
+		 */
+		if (e820.map[i].type != E820_RAM)
+			continue;
+		/*
+		 *	!!!FIXME!!! Some BIOSen report areas as RAM that
+		 *	are not. Notably the 640->1Mb area. We need a sanity
+		 *	check here.
+		 */
+		addr = (e820.map[i].addr + PAGE_SIZE-1) >> PAGE_SHIFT;
+		end = (e820.map[i].addr + e820.map[i].size) >> PAGE_SHIFT;
+		if ((pagenr >= addr) && (pagenr < end))
+			return 1;
+	}
+	return 0;
+}
+
 /*
  * Fix up the linear direct mapping of the kernel to avoid cache attribute
  * conflicts.
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h
index e2c79d8dcdcf..c8b30efeed85 100644
--- a/include/asm-x86/page.h
+++ b/include/asm-x86/page.h
@@ -47,6 +47,9 @@
 
 
 #ifndef __ASSEMBLY__
+
+extern int page_is_ram(unsigned long pagenr);
+
 struct page;
 
 static void inline clear_user_page(void *page, unsigned long vaddr,
diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h
index 11c4b39cada1..a6fd10f230d2 100644
--- a/include/asm-x86/page_32.h
+++ b/include/asm-x86/page_32.h
@@ -73,7 +73,6 @@ extern int nx_enabled;
  */
 extern unsigned int __VMALLOC_RESERVE;
 extern int sysctl_legacy_va_layout;
-extern int page_is_ram(unsigned long pagenr);
 
 #define VMALLOC_RESERVE		((unsigned long)__VMALLOC_RESERVE)
 #define MAXMEM			(-__PAGE_OFFSET-__VMALLOC_RESERVE)
-- 
cgit v1.2.3-59-g8ed1b


From 950f9d95bed1a366434d3597ea75f5b9d772d74f Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:06 +0100
Subject: x86: fix the missing BIOS area check in page_is_ram

page_is_ram has a FIXME since ages, which reminds to sanity check the
BIOS area between 640k and 1M, which is sometimes falsely reported as
RAM in the e820 tables.

Implement the sanity check. Move the BIOS range defines from
pageattr.c into e820.h to avoid duplicate defines.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/ioremap.c  | 15 ++++++++++-----
 arch/x86/mm/pageattr.c |  7 +------
 include/asm-x86/e820.h |  3 +++
 3 files changed, 14 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index d3026e1906f9..24e42cab8d58 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -42,13 +42,18 @@ int page_is_ram(unsigned long pagenr)
 		 */
 		if (e820.map[i].type != E820_RAM)
 			continue;
-		/*
-		 *	!!!FIXME!!! Some BIOSen report areas as RAM that
-		 *	are not. Notably the 640->1Mb area. We need a sanity
-		 *	check here.
-		 */
 		addr = (e820.map[i].addr + PAGE_SIZE-1) >> PAGE_SHIFT;
 		end = (e820.map[i].addr + e820.map[i].size) >> PAGE_SHIFT;
+
+		/*
+		 * Sanity check: Some BIOSen report areas as RAM that
+		 * are not. Notably the 640->1Mb area, which is the
+		 * PCI BIOS area.
+		 */
+		if (addr >= (BIOS_BEGIN >> PAGE_SHIFT) &&
+		    end < (BIOS_END >> PAGE_SHIFT))
+			continue;
+
 		if ((pagenr >= addr) && (pagenr < end))
 			return 1;
 	}
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 19f7f7a0b36f..fcd96125c5ae 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -9,18 +9,13 @@
 #include <linux/slab.h>
 #include <linux/mm.h>
 
+#include <asm/e820.h>
 #include <asm/processor.h>
 #include <asm/tlbflush.h>
 #include <asm/sections.h>
 #include <asm/uaccess.h>
 #include <asm/pgalloc.h>
 
-/*
- * We must allow the BIOS range to be executable:
- */
-#define BIOS_BEGIN		0x000a0000
-#define BIOS_END		0x00100000
-
 static inline int
 within(unsigned long addr, unsigned long start, unsigned long end)
 {
diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h
index f96f1853bc41..7004251fc66b 100644
--- a/include/asm-x86/e820.h
+++ b/include/asm-x86/e820.h
@@ -25,6 +25,9 @@ struct e820map {
 #define ISA_START_ADDRESS	0xa0000
 #define ISA_END_ADDRESS		0x100000
 
+#define BIOS_BEGIN		0x000a0000
+#define BIOS_END		0x00100000
+
 #ifdef __KERNEL__
 #ifdef CONFIG_X86_32
 # include "e820_32.h"
-- 
cgit v1.2.3-59-g8ed1b


From 266b9f8727976769e2ed2dad77ac9295f37e321e Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:06 +0100
Subject: x86: fix ioremap RAM check

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 24e42cab8d58..e84c09e7d2c1 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -125,23 +125,14 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 	if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
 		return (__force void __iomem *)phys_to_virt(phys_addr);
 
-#ifdef CONFIG_X86_32
 	/*
 	 * Don't allow anybody to remap normal RAM that we're using..
 	 */
-	if (phys_addr <= virt_to_phys(high_memory - 1)) {
-		char *t_addr, *t_end;
-		struct page *page;
-
-		t_addr = __va(phys_addr);
-		t_end = t_addr + (size - 1);
-
-		for (page = virt_to_page(t_addr);
-		     page <= virt_to_page(t_end); page++)
-			if (!PageReserved(page))
-				return NULL;
+	for (offset = phys_addr >> PAGE_SHIFT; offset < max_pfn_mapped &&
+	     (offset << PAGE_SHIFT) < last_addr; offset++) {
+		if (page_is_ram(offset))
+			return NULL;
 	}
-#endif
 
 	pgprot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
 
-- 
cgit v1.2.3-59-g8ed1b


From 5f8681529cb243b3a492e55f2da9d632ad0d5e32 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:06 +0100
Subject: x86: fix ioremap API

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap.c   | 11 ++++++++---
 include/asm-x86/io_32.h | 13 +++----------
 include/asm-x86/io_64.h | 13 +++----------
 3 files changed, 14 insertions(+), 23 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index e84c09e7d2c1..8777bb7688f4 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -106,8 +106,8 @@ static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
  * have to convert them into an offset in a page-aligned mapping, but the
  * caller shouldn't need to know that small detail.
  */
-void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
-			unsigned long flags)
+static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
+			       unsigned long flags)
 {
 	void __iomem *addr;
 	struct vm_struct *area;
@@ -164,7 +164,6 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 
 	return (void __iomem *) (offset + (char __iomem *)addr);
 }
-EXPORT_SYMBOL(__ioremap);
 
 /**
  * ioremap_nocache     -   map bus memory into CPU space
@@ -193,6 +192,12 @@ void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
 }
 EXPORT_SYMBOL(ioremap_nocache);
 
+void __iomem *ioremap_cache(unsigned long phys_addr, unsigned long size)
+{
+	return __ioremap(phys_addr, size, 0);
+}
+EXPORT_SYMBOL(ioremap_cache);
+
 /**
  * iounmap - Free a IO remapping
  * @addr: virtual address from ioremap_*
diff --git a/include/asm-x86/io_32.h b/include/asm-x86/io_32.h
index 059a1fee4de3..586d7aa54ceb 100644
--- a/include/asm-x86/io_32.h
+++ b/include/asm-x86/io_32.h
@@ -100,8 +100,6 @@ static inline void * phys_to_virt(unsigned long address)
  */
 #define page_to_phys(page)    ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)
 
-extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
-
 /**
  * ioremap     -   map bus memory into CPU space
  * @offset:    bus address of the memory
@@ -116,18 +114,13 @@ extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsign
  * If the area you are trying to map is a PCI BAR you should have a
  * look at pci_iomap().
  */
-extern void __iomem * ioremap_nocache(unsigned long offset, unsigned long size);
-
-static inline void __iomem *
-ioremap_cache(unsigned long offset, unsigned long size)
-{
-	return __ioremap(offset, size, 0);
-}
+extern void __iomem *ioremap_nocache(unsigned long offset, unsigned long size);
+extern void __iomem *ioremap_cache(unsigned long offset, unsigned long size);
 
 /*
  * The default ioremap() behavior is non-cached:
  */
-static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
+static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
 {
 	return ioremap_nocache(offset, size);
 }
diff --git a/include/asm-x86/io_64.h b/include/asm-x86/io_64.h
index 7dee3c6e9c39..ee7a5c955962 100644
--- a/include/asm-x86/io_64.h
+++ b/include/asm-x86/io_64.h
@@ -150,8 +150,6 @@ static inline void * phys_to_virt(unsigned long address)
 
 #include <asm-generic/iomap.h>
 
-extern void __iomem *__ioremap(unsigned long offset, unsigned long size, unsigned long flags);
-
 extern void *early_ioremap(unsigned long addr, unsigned long size);
 extern void early_iounmap(void *addr, unsigned long size);
 
@@ -160,18 +158,13 @@ extern void early_iounmap(void *addr, unsigned long size);
  * it's useful if some control registers are in such an area and write combining
  * or read caching is not desirable:
  */
-extern void __iomem * ioremap_nocache(unsigned long offset, unsigned long size);
-
-static inline void __iomem *
-ioremap_cache(unsigned long offset, unsigned long size)
-{
-	return __ioremap(offset, size, 0);
-}
+extern void __iomem *ioremap_nocache(unsigned long offset, unsigned long size);
+extern void __iomem *ioremap_cache(unsigned long offset, unsigned long size);
 
 /*
  * The default ioremap() behavior is non-cached:
  */
-static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
+static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
 {
 	return ioremap_cache(offset, size);
 }
-- 
cgit v1.2.3-59-g8ed1b


From d806e5ee20f62a892b09aa59559f143d465285db Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:06 +0100
Subject: x86: cpa: convert ioremap to new API

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap.c | 57 +++++++++++++++++++++++++++++++--------------------
 1 file changed, 35 insertions(+), 22 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 8777bb7688f4..b86f66fa5185 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -19,6 +19,11 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 
+enum ioremap_mode {
+	IOR_MODE_UNCACHED,
+	IOR_MODE_CACHED,
+};
+
 #ifdef CONFIG_X86_64
 
 unsigned long __phys_addr(unsigned long x)
@@ -64,19 +69,17 @@ int page_is_ram(unsigned long pagenr)
  * Fix up the linear direct mapping of the kernel to avoid cache attribute
  * conflicts.
  */
-static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
-			       pgprot_t prot)
+static int ioremap_change_attr(unsigned long paddr, unsigned long size,
+			       enum ioremap_mode mode)
 {
-	unsigned long npages, vaddr, last_addr = phys_addr + size - 1;
+	unsigned long vaddr = (unsigned long)__va(paddr);
+	unsigned long nrpages = size >> PAGE_SHIFT;
 	int err, level;
 
 	/* No change for pages after the last mapping */
-	if (last_addr >= (max_pfn_mapped << PAGE_SHIFT))
+	if ((paddr + size - 1) >= (max_pfn_mapped << PAGE_SHIFT))
 		return 0;
 
-	npages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-	vaddr = (unsigned long) __va(phys_addr);
-
 	/*
 	 * If there is no identity map for this address,
 	 * change_page_attr_addr is unnecessary
@@ -84,13 +87,15 @@ static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
 	if (!lookup_address(vaddr, &level))
 		return 0;
 
-	/*
-	 * Must use an address here and not struct page because the
-	 * phys addr can be a in hole between nodes and not have a
-	 * memmap entry.
-	 */
-	err = change_page_attr_addr(vaddr, npages, prot);
-
+	switch (mode) {
+	case IOR_MODE_UNCACHED:
+	default:
+		err = set_memory_uc(vaddr, nrpages);
+		break;
+	case IOR_MODE_CACHED:
+		err = set_memory_wb(vaddr, nrpages);
+		break;
+	}
 	if (!err)
 		global_flush_tlb();
 
@@ -107,12 +112,12 @@ static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
  * caller shouldn't need to know that small detail.
  */
 static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
-			       unsigned long flags)
+			       enum ioremap_mode mode)
 {
 	void __iomem *addr;
 	struct vm_struct *area;
 	unsigned long offset, last_addr;
-	pgprot_t pgprot;
+	pgprot_t prot;
 
 	/* Don't allow wraparound or zero size */
 	last_addr = phys_addr + size - 1;
@@ -134,7 +139,15 @@ static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 			return NULL;
 	}
 
-	pgprot = MAKE_GLOBAL(__PAGE_KERNEL | flags);
+	switch (mode) {
+	case IOR_MODE_UNCACHED:
+	default:
+		prot = PAGE_KERNEL_NOCACHE;
+		break;
+	case IOR_MODE_CACHED:
+		prot = PAGE_KERNEL;
+		break;
+	}
 
 	/*
 	 * Mappings have to be page-aligned
@@ -152,12 +165,12 @@ static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 	area->phys_addr = phys_addr;
 	addr = (void __iomem *) area->addr;
 	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
-			       phys_addr, pgprot)) {
+			       phys_addr, prot)) {
 		remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
 		return NULL;
 	}
 
-	if (ioremap_change_attr(phys_addr, size, pgprot) < 0) {
+	if (ioremap_change_attr(phys_addr, size, mode) < 0) {
 		vunmap(addr);
 		return NULL;
 	}
@@ -188,13 +201,13 @@ static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
  */
 void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
 {
-	return __ioremap(phys_addr, size, _PAGE_PCD | _PAGE_PWT);
+	return __ioremap(phys_addr, size, IOR_MODE_UNCACHED);
 }
 EXPORT_SYMBOL(ioremap_nocache);
 
 void __iomem *ioremap_cache(unsigned long phys_addr, unsigned long size)
 {
-	return __ioremap(phys_addr, size, 0);
+	return __ioremap(phys_addr, size, IOR_MODE_CACHED);
 }
 EXPORT_SYMBOL(ioremap_cache);
 
@@ -242,7 +255,7 @@ void iounmap(volatile void __iomem *addr)
 	}
 
 	/* Reset the direct mapping. Can block */
-	ioremap_change_attr(p->phys_addr, p->size, PAGE_KERNEL);
+	ioremap_change_attr(p->phys_addr, p->size, IOR_MODE_CACHED);
 
 	/* Finally remove it */
 	o = remove_vm_area((void *)addr);
-- 
cgit v1.2.3-59-g8ed1b


From f62d0f008e889915c93631c04d4c7d871f05bea7 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:07 +0100
Subject: x86: cpa: set_memory_notpresent()

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_64.c        | 17 +++++++++++++++--
 arch/x86/mm/pageattr.c       | 34 ++++++++++++++++++++++++++--------
 include/asm-x86/cacheflush.h |  1 +
 3 files changed, 42 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 05bb12db0b09..4757be7b5e55 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -559,8 +559,21 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 		free_page(addr);
 		totalram_pages++;
 	}
-	if (addr > __START_KERNEL_map)
-		global_flush_tlb();
+#ifdef CONFIG_DEBUG_RODATA
+	/*
+	 * This will make the __init pages not present and
+	 * not executable, so that any attempt to use a
+	 * __init function from now on will fault immediately
+	 * rather than supriously later when memory gets reused.
+	 *
+	 * We only do this for DEBUG_RODATA to not break up the
+	 * 2Mb kernel mapping just for this debug feature.
+	 */
+	if (begin >= __START_KERNEL_map) {
+		set_memory_np(begin, (end - begin)/PAGE_SIZE);
+		set_memory_nx(begin, (end - begin)/PAGE_SIZE);
+	}
+#endif
 }
 
 void free_initmem(void)
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index fcd96125c5ae..e5910ac37e59 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -357,8 +357,6 @@ int change_page_attr_clear(unsigned long addr, int numpages, pgprot_t prot)
 	return change_page_attr_addr(addr, numpages, prot);
 }
 
-
-
 int set_memory_uc(unsigned long addr, int numpages)
 {
 	pgprot_t uncached;
@@ -402,7 +400,6 @@ int set_memory_ro(unsigned long addr, int numpages)
 	pgprot_val(rw) = _PAGE_RW;
 	return change_page_attr_clear(addr, numpages, rw);
 }
-EXPORT_SYMBOL(set_memory_ro);
 
 int set_memory_rw(unsigned long addr, int numpages)
 {
@@ -411,7 +408,14 @@ int set_memory_rw(unsigned long addr, int numpages)
 	pgprot_val(rw) = _PAGE_RW;
 	return change_page_attr_set(addr, numpages, rw);
 }
-EXPORT_SYMBOL(set_memory_rw);
+
+int set_memory_np(unsigned long addr, int numpages)
+{
+	pgprot_t present;
+
+	pgprot_val(present) = _PAGE_PRESENT;
+	return change_page_attr_clear(addr, numpages, present);
+}
 
 int set_pages_uc(struct page *page, int numpages)
 {
@@ -461,7 +465,6 @@ int set_pages_ro(struct page *page, int numpages)
 	pgprot_val(rw) = _PAGE_RW;
 	return change_page_attr_clear(addr, numpages, rw);
 }
-EXPORT_SYMBOL(set_pages_ro);
 
 int set_pages_rw(struct page *page, int numpages)
 {
@@ -471,8 +474,6 @@ int set_pages_rw(struct page *page, int numpages)
 	pgprot_val(rw) = _PAGE_RW;
 	return change_page_attr_set(addr, numpages, rw);
 }
-EXPORT_SYMBOL(set_pages_rw);
-
 
 void clflush_cache_range(void *addr, int size)
 {
@@ -503,6 +504,20 @@ void global_flush_tlb(void)
 EXPORT_SYMBOL(global_flush_tlb);
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
+
+static int __set_pages_p(struct page *page, int numpages)
+{
+	unsigned long addr = (unsigned long)page_address(page);
+	return change_page_attr_set(addr, numpages,
+				__pgprot(_PAGE_PRESENT | _PAGE_RW));
+}
+
+static int __set_pages_np(struct page *page, int numpages)
+{
+	unsigned long addr = (unsigned long)page_address(page);
+	return change_page_attr_clear(addr, numpages, __pgprot(_PAGE_PRESENT));
+}
+
 void kernel_map_pages(struct page *page, int numpages, int enable)
 {
 	if (PageHighMem(page))
@@ -522,7 +537,10 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
 	 * The return value is ignored - the calls cannot fail,
 	 * large pages are disabled at boot time:
 	 */
-	change_page_attr(page, numpages, enable ? PAGE_KERNEL : __pgprot(0));
+	if (enable)
+		__set_pages_p(page, numpages);
+	else
+		__set_pages_np(page, numpages);
 
 	/*
 	 * We should perform an IPI and flush all tlbs,
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index e79159bc0987..a95afaf1240d 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -42,6 +42,7 @@ int set_memory_x(unsigned long addr, int numpages);
 int set_memory_nx(unsigned long addr, int numpages);
 int set_memory_ro(unsigned long addr, int numpages);
 int set_memory_rw(unsigned long addr, int numpages);
+int set_memory_np(unsigned long addr, int numpages);
 
 void clflush_cache_range(void *addr, int size);
 
-- 
cgit v1.2.3-59-g8ed1b


From d1028a154c65d7fadd1b2d0276c077014d401ec7 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:34:07 +0100
Subject: x86: make various pageattr.c functions static

change_page_attr_add is only used in pageattr.c now, so we can
make this function static.
change_page_attr() isn't used anywere at all anymore; this function
is a really bad API anyway so just remove the bloat entirely.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/Makefile_32      |  1 -
 arch/x86/mm/Makefile_64      |  1 -
 arch/x86/mm/pageattr.c       | 51 ++++++++++++--------------------------------
 include/asm-x86/cacheflush.h |  1 -
 4 files changed, 14 insertions(+), 40 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/Makefile_32 b/arch/x86/mm/Makefile_32
index af0d39bea6c5..ffa6d46a1e73 100644
--- a/arch/x86/mm/Makefile_32
+++ b/arch/x86/mm/Makefile_32
@@ -4,7 +4,6 @@
 
 obj-y	:= init_32.o pgtable_32.o fault_32.o ioremap.o extable.o pageattr.o mmap.o
 
-obj-$(CONFIG_CPA_DEBUG) += pageattr-test.o
 obj-$(CONFIG_NUMA) += discontig_32.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_HIGHMEM) += highmem_32.o
diff --git a/arch/x86/mm/Makefile_64 b/arch/x86/mm/Makefile_64
index b564b5a760da..27a090c86e9b 100644
--- a/arch/x86/mm/Makefile_64
+++ b/arch/x86/mm/Makefile_64
@@ -7,4 +7,3 @@ obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_NUMA) += numa_64.o
 obj-$(CONFIG_K8_NUMA) += k8topology_64.o
 obj-$(CONFIG_ACPI_NUMA) += srat_64.o
-obj-$(CONFIG_CPA_DEBUG) += pageattr-test.o
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index e5910ac37e59..e4d2b6930e61 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -210,7 +210,8 @@ repeat:
  * Modules and drivers should use the set_memory_* APIs instead.
  */
 
-int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
+static int change_page_attr_addr(unsigned long address, int numpages,
+								pgprot_t prot)
 {
 	int err = 0, kernel_map = 0, i;
 
@@ -251,36 +252,6 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
 	return err;
 }
 
-/**
- * change_page_attr - Change page table attributes in the linear mapping.
- * @page: First page to change
- * @numpages: Number of pages to change
- * @prot: New protection/caching type (PAGE_*)
- *
- * Returns 0 on success, otherwise a negated errno.
- *
- * This should be used when a page is mapped with a different caching policy
- * than write-back somewhere - some CPUs do not like it when mappings with
- * different caching policies exist. This changes the page attributes of the
- * in kernel linear mapping too.
- *
- * Caller must call global_flush_tlb() later to make the changes active.
- *
- * The caller needs to ensure that there are no conflicting mappings elsewhere
- * (e.g. in user space) * This function only deals with the kernel linear map.
- *
- * For MMIO areas without mem_map use change_page_attr_addr() instead.
- *
- * Modules and drivers should use the set_pages_* APIs instead.
- */
-int change_page_attr(struct page *page, int numpages, pgprot_t prot)
-{
-	unsigned long addr = (unsigned long)page_address(page);
-
-	return change_page_attr_addr(addr, numpages, prot);
-}
-EXPORT_UNUSED_SYMBOL(change_page_attr); /* to be removed in 2.6.27 */
-
 /**
  * change_page_attr_set - Change page table attributes in the linear mapping.
  * @addr: Virtual address in linear mapping.
@@ -294,15 +265,14 @@ EXPORT_UNUSED_SYMBOL(change_page_attr); /* to be removed in 2.6.27 */
  * different caching policies exist. This changes the page attributes of the
  * in kernel linear mapping too.
  *
- * Caller must call global_flush_tlb() later to make the changes active.
- *
  * The caller needs to ensure that there are no conflicting mappings elsewhere
  * (e.g. in user space) * This function only deals with the kernel linear map.
  *
  * This function is different from change_page_attr() in that only selected bits
  * are impacted, all other bits remain as is.
  */
-int change_page_attr_set(unsigned long addr, int numpages, pgprot_t prot)
+static int change_page_attr_set(unsigned long addr, int numpages,
+								pgprot_t prot)
 {
 	pgprot_t current_prot;
 	int level;
@@ -332,15 +302,14 @@ int change_page_attr_set(unsigned long addr, int numpages, pgprot_t prot)
  * different caching policies exist. This changes the page attributes of the
  * in kernel linear mapping too.
  *
- * Caller must call global_flush_tlb() later to make the changes active.
- *
  * The caller needs to ensure that there are no conflicting mappings elsewhere
  * (e.g. in user space) * This function only deals with the kernel linear map.
  *
  * This function is different from change_page_attr() in that only selected bits
  * are impacted, all other bits remain as is.
  */
-int change_page_attr_clear(unsigned long addr, int numpages, pgprot_t prot)
+static int change_page_attr_clear(unsigned long addr, int numpages,
+								pgprot_t prot)
 {
 	pgprot_t current_prot;
 	int level;
@@ -549,3 +518,11 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
 	__flush_tlb_all();
 }
 #endif
+
+/*
+ * The testcases use internal knowledge of the implementation that shouldn't
+ * be exposed to the rest of the kernel. Include these directly here.
+ */
+#ifdef CONFIG_CPA_DEBUG
+#include "pageattr-test.c"
+#endif
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index a95afaf1240d..d15ff359d3e3 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -27,7 +27,6 @@
 void global_flush_tlb(void);
 int __deprecated_for_modules change_page_attr(struct page *page, int numpages,
 								pgprot_t prot);
-int change_page_attr_addr(unsigned long addr, int numpages, pgprot_t prot);
 
 int set_pages_uc(struct page *page, int numpages);
 int set_pages_wb(struct page *page, int numpages);
-- 
cgit v1.2.3-59-g8ed1b


From d7c8f21a8cad0228c7c5ce2bb6dbd95d1ee49d13 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:07 +0100
Subject: x86: cpa: move flush to cpa

The set_memory_* and set_pages_* family of API's currently requires the
callers to do a global tlb flush after the function call; forgetting this is
a very nasty deathtrap. This patch moves the global tlb flush into
each of the callers

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/pci-gart_64.c       |   1 -
 arch/x86/mm/init_32.c               |  14 ----
 arch/x86/mm/init_64.c               |  10 ---
 arch/x86/mm/ioremap.c               |   2 -
 arch/x86/mm/pageattr.c              | 137 +++++++++++++++++++-----------------
 drivers/char/agp/ali-agp.c          |   2 -
 drivers/char/agp/i460-agp.c         |   2 -
 drivers/char/agp/intel-agp.c        |   5 --
 drivers/video/vermilion/vermilion.c |   6 --
 include/asm-x86/agp.h               |   6 +-
 include/asm-x86/cacheflush.h        |   1 -
 sound/pci/intel8x0.c                |   1 -
 12 files changed, 72 insertions(+), 115 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 8860c6eba8ab..4d5cc7181982 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -572,7 +572,6 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
 		panic("Cannot allocate GATT table");
 	if (set_memory_uc((unsigned long)gatt, gatt_size >> PAGE_SHIFT))
 		panic("Could not set GART PTEs to uncacheable pages");
-	global_flush_tlb();
 
 	memset(gatt, 0, gatt_size);
 	agp_gatt_table = gatt;
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index f7b941c3b2c3..0d3369b900e9 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -752,15 +752,11 @@ void mark_rodata_ro(void)
 		printk("Write protecting the kernel text: %luk\n", size >> 10);
 
 #ifdef CONFIG_CPA_DEBUG
-		global_flush_tlb();
-
 		printk("Testing CPA: Reverting %lx-%lx\n", start, start+size);
 		set_pages_rw(virt_to_page(start), size>>PAGE_SHIFT);
-		global_flush_tlb();
 
 		printk("Testing CPA: write protecting again\n");
 		set_pages_ro(virt_to_page(start), size>>PAGE_SHIFT);
-		global_flush_tlb();
 #endif
 	}
 #endif
@@ -770,22 +766,12 @@ void mark_rodata_ro(void)
 	printk("Write protecting the kernel read-only data: %luk\n",
 	       size >> 10);
 
-	/*
-	 * set_pages_*() requires a global_flush_tlb() call after it.
-	 * We do this after the printk so that if something went wrong in the
-	 * change, the printk gets out at least to give a better debug hint
-	 * of who is the culprit.
-	 */
-	global_flush_tlb();
-
 #ifdef CONFIG_CPA_DEBUG
 	printk("Testing CPA: undo %lx-%lx\n", start, start + size);
 	set_pages_rw(virt_to_page(start), size >> PAGE_SHIFT);
-	global_flush_tlb();
 
 	printk("Testing CPA: write protecting again\n");
 	set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
-	global_flush_tlb();
 #endif
 }
 #endif
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 4757be7b5e55..9b69fa54a831 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -610,22 +610,12 @@ void mark_rodata_ro(void)
 	printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n",
 	       (end - start) >> 10);
 
-	/*
-	 * set_memory_*() requires a global_flush_tlb() call after it.
-	 * We do this after the printk so that if something went wrong in the
-	 * change, the printk gets out at least to give a better debug hint
-	 * of who is the culprit.
-	 */
-	global_flush_tlb();
-
 #ifdef CONFIG_CPA_DEBUG
 	printk("Testing CPA: undo %lx-%lx\n", start, end);
 	set_memory_rw(start, (end-start) >> PAGE_SHIFT);
-	global_flush_tlb();
 
 	printk("Testing CPA: again\n");
 	set_memory_ro(start, (end-start) >> PAGE_SHIFT);
-	global_flush_tlb();
 #endif
 }
 #endif
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index b86f66fa5185..6a9a1418bc98 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -96,8 +96,6 @@ static int ioremap_change_attr(unsigned long paddr, unsigned long size,
 		err = set_memory_wb(vaddr, nrpages);
 		break;
 	}
-	if (!err)
-		global_flush_tlb();
 
 	return err;
 }
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index e4d2b6930e61..a2d747c06147 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -22,6 +22,36 @@ within(unsigned long addr, unsigned long start, unsigned long end)
 	return addr >= start && addr < end;
 }
 
+/*
+ * Flushing functions
+ */
+void clflush_cache_range(void *addr, int size)
+{
+	int i;
+
+	for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
+		clflush(addr+i);
+}
+
+static void flush_kernel_map(void *arg)
+{
+	/*
+	 * Flush all to work around Errata in early athlons regarding
+	 * large page flushing.
+	 */
+	__flush_tlb_all();
+
+	if (boot_cpu_data.x86_model >= 4)
+		wbinvd();
+}
+
+static void global_flush_tlb(void)
+{
+	BUG_ON(irqs_disabled());
+
+	on_each_cpu(flush_kernel_map, NULL, 1, 1);
+}
+
 /*
  * Certain areas of memory on x86 require very specific protection flags,
  * for example the BIOS area or kernel text. Callers don't always get this
@@ -328,149 +358,124 @@ static int change_page_attr_clear(unsigned long addr, int numpages,
 
 int set_memory_uc(unsigned long addr, int numpages)
 {
-	pgprot_t uncached;
+	int err;
 
-	pgprot_val(uncached) = _PAGE_PCD | _PAGE_PWT;
-	return change_page_attr_set(addr, numpages, uncached);
+	err = change_page_attr_set(addr, numpages,
+				__pgprot(_PAGE_PCD | _PAGE_PWT));
+	global_flush_tlb();
+	return err;
 }
 EXPORT_SYMBOL(set_memory_uc);
 
 int set_memory_wb(unsigned long addr, int numpages)
 {
-	pgprot_t uncached;
+	int err;
 
-	pgprot_val(uncached) = _PAGE_PCD | _PAGE_PWT;
-	return change_page_attr_clear(addr, numpages, uncached);
+	err = change_page_attr_clear(addr, numpages,
+				__pgprot(_PAGE_PCD | _PAGE_PWT));
+	global_flush_tlb();
+	return err;
 }
 EXPORT_SYMBOL(set_memory_wb);
 
 int set_memory_x(unsigned long addr, int numpages)
 {
-	pgprot_t nx;
+	int err;
 
-	pgprot_val(nx) = _PAGE_NX;
-	return change_page_attr_clear(addr, numpages, nx);
+	err = change_page_attr_clear(addr, numpages,
+				__pgprot(_PAGE_NX));
+	global_flush_tlb();
+	return err;
 }
 EXPORT_SYMBOL(set_memory_x);
 
 int set_memory_nx(unsigned long addr, int numpages)
 {
-	pgprot_t nx;
+	int err;
 
-	pgprot_val(nx) = _PAGE_NX;
-	return change_page_attr_set(addr, numpages, nx);
+	err = change_page_attr_set(addr, numpages,
+				__pgprot(_PAGE_NX));
+	global_flush_tlb();
+	return err;
 }
 EXPORT_SYMBOL(set_memory_nx);
 
 int set_memory_ro(unsigned long addr, int numpages)
 {
-	pgprot_t rw;
+	int err;
 
-	pgprot_val(rw) = _PAGE_RW;
-	return change_page_attr_clear(addr, numpages, rw);
+	err = change_page_attr_clear(addr, numpages,
+				__pgprot(_PAGE_RW));
+	global_flush_tlb();
+	return err;
 }
 
 int set_memory_rw(unsigned long addr, int numpages)
 {
-	pgprot_t rw;
+	int err;
 
-	pgprot_val(rw) = _PAGE_RW;
-	return change_page_attr_set(addr, numpages, rw);
+	err = change_page_attr_set(addr, numpages,
+				__pgprot(_PAGE_RW));
+	global_flush_tlb();
+	return err;
 }
 
 int set_memory_np(unsigned long addr, int numpages)
 {
-	pgprot_t present;
+	int err;
 
-	pgprot_val(present) = _PAGE_PRESENT;
-	return change_page_attr_clear(addr, numpages, present);
+	err = change_page_attr_clear(addr, numpages,
+				__pgprot(_PAGE_PRESENT));
+	global_flush_tlb();
+	return err;
 }
 
 int set_pages_uc(struct page *page, int numpages)
 {
 	unsigned long addr = (unsigned long)page_address(page);
-	pgprot_t uncached;
 
-	pgprot_val(uncached) = _PAGE_PCD | _PAGE_PWT;
-	return change_page_attr_set(addr, numpages, uncached);
+	return set_memory_uc(addr, numpages);
 }
 EXPORT_SYMBOL(set_pages_uc);
 
 int set_pages_wb(struct page *page, int numpages)
 {
 	unsigned long addr = (unsigned long)page_address(page);
-	pgprot_t uncached;
 
-	pgprot_val(uncached) = _PAGE_PCD | _PAGE_PWT;
-	return change_page_attr_clear(addr, numpages, uncached);
+	return set_memory_wb(addr, numpages);
 }
 EXPORT_SYMBOL(set_pages_wb);
 
 int set_pages_x(struct page *page, int numpages)
 {
 	unsigned long addr = (unsigned long)page_address(page);
-	pgprot_t nx;
 
-	pgprot_val(nx) = _PAGE_NX;
-	return change_page_attr_clear(addr, numpages, nx);
+	return set_memory_x(addr, numpages);
 }
 EXPORT_SYMBOL(set_pages_x);
 
 int set_pages_nx(struct page *page, int numpages)
 {
 	unsigned long addr = (unsigned long)page_address(page);
-	pgprot_t nx;
 
-	pgprot_val(nx) = _PAGE_NX;
-	return change_page_attr_set(addr, numpages, nx);
+	return set_memory_nx(addr, numpages);
 }
 EXPORT_SYMBOL(set_pages_nx);
 
 int set_pages_ro(struct page *page, int numpages)
 {
 	unsigned long addr = (unsigned long)page_address(page);
-	pgprot_t rw;
 
-	pgprot_val(rw) = _PAGE_RW;
-	return change_page_attr_clear(addr, numpages, rw);
+	return set_memory_ro(addr, numpages);
 }
 
 int set_pages_rw(struct page *page, int numpages)
 {
 	unsigned long addr = (unsigned long)page_address(page);
-	pgprot_t rw;
-
-	pgprot_val(rw) = _PAGE_RW;
-	return change_page_attr_set(addr, numpages, rw);
-}
-
-void clflush_cache_range(void *addr, int size)
-{
-	int i;
-
-	for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
-		clflush(addr+i);
-}
 
-static void flush_kernel_map(void *arg)
-{
-	/*
-	 * Flush all to work around Errata in early athlons regarding
-	 * large page flushing.
-	 */
-	__flush_tlb_all();
-
-	if (boot_cpu_data.x86_model >= 4)
-		wbinvd();
+	return set_memory_rw(addr, numpages);
 }
 
-void global_flush_tlb(void)
-{
-	BUG_ON(irqs_disabled());
-
-	on_each_cpu(flush_kernel_map, NULL, 1, 1);
-}
-EXPORT_SYMBOL(global_flush_tlb);
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
 
diff --git a/drivers/char/agp/ali-agp.c b/drivers/char/agp/ali-agp.c
index aa5ddb716ffb..1ffb381130c3 100644
--- a/drivers/char/agp/ali-agp.c
+++ b/drivers/char/agp/ali-agp.c
@@ -145,7 +145,6 @@ static void *m1541_alloc_page(struct agp_bridge_data *bridge)
 	void *addr = agp_generic_alloc_page(agp_bridge);
 	u32 temp;
 
-	global_flush_tlb();
 	if (!addr)
 		return NULL;
 
@@ -162,7 +161,6 @@ static void ali_destroy_page(void * addr, int flags)
 		if (flags & AGP_PAGE_DESTROY_UNMAP) {
 			global_cache_flush();	/* is this really needed?  --hch */
 			agp_generic_destroy_page(addr, flags);
-			global_flush_tlb();
 		} else
 			agp_generic_destroy_page(addr, flags);
 	}
diff --git a/drivers/char/agp/i460-agp.c b/drivers/char/agp/i460-agp.c
index e72a83e2bad5..76f581c85a7d 100644
--- a/drivers/char/agp/i460-agp.c
+++ b/drivers/char/agp/i460-agp.c
@@ -527,7 +527,6 @@ static void *i460_alloc_page (struct agp_bridge_data *bridge)
 
 	if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT) {
 		page = agp_generic_alloc_page(agp_bridge);
-		global_flush_tlb();
 	} else
 		/* Returning NULL would cause problems */
 		/* AK: really dubious code. */
@@ -539,7 +538,6 @@ static void i460_destroy_page (void *page, int flags)
 {
 	if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT) {
 		agp_generic_destroy_page(page, flags);
-		global_flush_tlb();
 	}
 }
 
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index c03a7143928f..189efb6ef970 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -212,11 +212,9 @@ static void *i8xx_alloc_pages(void)
 
 	if (set_pages_uc(page, 4) < 0) {
 		set_pages_wb(page, 4);
-		global_flush_tlb();
 		__free_pages(page, 2);
 		return NULL;
 	}
-	global_flush_tlb();
 	get_page(page);
 	atomic_inc(&agp_bridge->current_memory_agp);
 	return page_address(page);
@@ -231,7 +229,6 @@ static void i8xx_destroy_pages(void *addr)
 
 	page = virt_to_page(addr);
 	set_pages_wb(page, 4);
-	global_flush_tlb();
 	put_page(page);
 	__free_pages(page, 2);
 	atomic_dec(&agp_bridge->current_memory_agp);
@@ -341,7 +338,6 @@ static struct agp_memory *alloc_agpphysmem_i8xx(size_t pg_count, int type)
 
 	switch (pg_count) {
 	case 1: addr = agp_bridge->driver->agp_alloc_page(agp_bridge);
-		global_flush_tlb();
 		break;
 	case 4:
 		/* kludge to get 4 physical pages for ARGB cursor */
@@ -404,7 +400,6 @@ static void intel_i810_free_by_type(struct agp_memory *curr)
 		else {
 			agp_bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[0]),
 							     AGP_PAGE_DESTROY_UNMAP);
-			global_flush_tlb();
 			agp_bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[0]),
 							     AGP_PAGE_DESTROY_FREE);
 		}
diff --git a/drivers/video/vermilion/vermilion.c b/drivers/video/vermilion/vermilion.c
index fb72778dee48..1c656667b937 100644
--- a/drivers/video/vermilion/vermilion.c
+++ b/drivers/video/vermilion/vermilion.c
@@ -124,13 +124,8 @@ static int vmlfb_alloc_vram_area(struct vram_area *va, unsigned max_order,
 	/*
 	 * Change caching policy of the linear kernel map to avoid
 	 * mapping type conflicts with user-space mappings.
-	 * The first global_flush_tlb() is really only there to do a global
-	 * wbinvd().
 	 */
-
-	global_flush_tlb();
 	set_pages_uc(virt_to_page(va->logical), va->size >> PAGE_SHIFT);
-	global_flush_tlb();
 
 	printk(KERN_DEBUG MODULE_NAME
 	       ": Allocated %ld bytes vram area at 0x%08lx\n",
@@ -156,7 +151,6 @@ static void vmlfb_free_vram_area(struct vram_area *va)
 
 		set_pages_wb(virt_to_page(va->logical),
 				 va->size >> PAGE_SHIFT);
-		global_flush_tlb();
 
 		/*
 		 * Decrease the usage count on the pages we've used
diff --git a/include/asm-x86/agp.h b/include/asm-x86/agp.h
index f6df72561832..0c309b9a5217 100644
--- a/include/asm-x86/agp.h
+++ b/include/asm-x86/agp.h
@@ -12,13 +12,9 @@
  * page. This avoids data corruption on some CPUs.
  */
 
-/*
- * Caller's responsibility to call global_flush_tlb() for performance
- * reasons
- */
 #define map_page_into_agp(page) set_pages_uc(page, 1)
 #define unmap_page_from_agp(page) set_pages_wb(page, 1)
-#define flush_agp_mappings() global_flush_tlb()
+#define flush_agp_mappings() do { } while (0)
 
 /*
  * Could use CLFLUSH here if the cpu supports it. But then it would
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index d15ff359d3e3..157da0206ccc 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -24,7 +24,6 @@
 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
 	memcpy(dst, src, len)
 
-void global_flush_tlb(void);
 int __deprecated_for_modules change_page_attr(struct page *page, int numpages,
 								pgprot_t prot);
 
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index e5650905296e..4bb97646a67a 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -715,7 +715,6 @@ static void fill_nocache(void *buf, int size, int nocache)
 		set_pages_uc(virt_to_page(buf), size);
 	else
 		set_pages_wb(virt_to_page(buf), size);
-	global_flush_tlb();
 }
 #else
 #define fill_nocache(buf, size, nocache) do { ; } while (0)
-- 
cgit v1.2.3-59-g8ed1b


From 488fd99588bf23da951b524a806e44feaa1aa366 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:34:07 +0100
Subject: x86: fix pageattr-selftest

In Ingo's testing, he found a bug in the CPA selftest code. What would
happen is that the test would call change_page_attr_addr on a range of
memory, part of which was read only, part of which was writable. The
only thing the test wanted to change was the global bit...

What actually happened was that the selftest would take the permissions
of the first page, and then the change_page_attr_addr call would then
set the permissions of the entire range to this first page. In the
rodata section case, this resulted in pages after the .rodata becoming
read only... which made the kernel rather unhappy in many interesting
ways.

This is just another example of how dangerous the cpa API is (was); this
patch changes the test to use the incremental clear/set APIs
instead, and it changes the clear/set implementation to work on a 1 page
at a time basis.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr-test.c |  8 ++--
 arch/x86/mm/pageattr.c      | 96 +++++++++++++++++++++++++--------------------
 2 files changed, 58 insertions(+), 46 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 6a41a0f0c149..fe73905d075e 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -162,8 +162,8 @@ static __init int exercise_pageattr(void)
 			continue;
 		}
 
-		err = change_page_attr_addr(addr[i], len[i],
-			    pte_pgprot(pte_clrhuge(pte_clrglobal(pte0))));
+		err = change_page_attr_clear(addr[i], len[i],
+						__pgprot(_PAGE_GLOBAL));
 		if (err < 0) {
 			printk(KERN_ERR "CPA %d failed %d\n", i, err);
 			failed++;
@@ -197,8 +197,8 @@ static __init int exercise_pageattr(void)
 			failed++;
 			continue;
 		}
-		err = change_page_attr_addr(addr[i], len[i],
-					  pte_pgprot(pte_mkglobal(*pte)));
+		err = change_page_attr_set(addr[i], len[i],
+							__pgprot(_PAGE_GLOBAL));
 		if (err < 0) {
 			printk(KERN_ERR "CPA reverting failed: %d\n", err);
 			failed++;
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index a2d747c06147..23f0aa3d01c1 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -228,7 +228,6 @@ repeat:
 /**
  * change_page_attr_addr - Change page table attributes in linear mapping
  * @address: Virtual address in linear mapping.
- * @numpages: Number of pages to change
  * @prot:    New page table attribute (PAGE_*)
  *
  * Change page attributes of a page in the direct mapping. This is a variant
@@ -240,10 +239,10 @@ repeat:
  * Modules and drivers should use the set_memory_* APIs instead.
  */
 
-static int change_page_attr_addr(unsigned long address, int numpages,
-								pgprot_t prot)
+static int change_page_attr_addr(unsigned long address, pgprot_t prot)
 {
-	int err = 0, kernel_map = 0, i;
+	int err = 0, kernel_map = 0;
+	unsigned long pfn = __pa(address) >> PAGE_SHIFT;
 
 #ifdef CONFIG_X86_64
 	if (address >= __START_KERNEL_map &&
@@ -254,30 +253,27 @@ static int change_page_attr_addr(unsigned long address, int numpages,
 	}
 #endif
 
-	for (i = 0; i < numpages; i++, address += PAGE_SIZE) {
-		unsigned long pfn = __pa(address) >> PAGE_SHIFT;
+	if (!kernel_map || pte_present(pfn_pte(0, prot))) {
+		err = __change_page_attr(address, pfn, prot);
+		if (err)
+			return err;
+	}
 
-		if (!kernel_map || pte_present(pfn_pte(0, prot))) {
-			err = __change_page_attr(address, pfn, prot);
-			if (err)
-				break;
-		}
 #ifdef CONFIG_X86_64
-		/*
-		 * Handle kernel mapping too which aliases part of
-		 * lowmem:
-		 */
-		if (__pa(address) < KERNEL_TEXT_SIZE) {
-			unsigned long addr2;
-			pgprot_t prot2;
-
-			addr2 = __START_KERNEL_map + __pa(address);
-			/* Make sure the kernel mappings stay executable */
-			prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
-			err = __change_page_attr(addr2, pfn, prot2);
-		}
-#endif
+	/*
+	 * Handle kernel mapping too which aliases part of
+	 * lowmem:
+	 */
+	if (__pa(address) < KERNEL_TEXT_SIZE) {
+		unsigned long addr2;
+		pgprot_t prot2;
+
+		addr2 = __START_KERNEL_map + __pa(address);
+		/* Make sure the kernel mappings stay executable */
+		prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
+		err = __change_page_attr(addr2, pfn, prot2);
 	}
+#endif
 
 	return err;
 }
@@ -307,16 +303,24 @@ static int change_page_attr_set(unsigned long addr, int numpages,
 	pgprot_t current_prot;
 	int level;
 	pte_t *pte;
+	int i, ret;
 
-	pte = lookup_address(addr, &level);
-	if (pte)
-		current_prot = pte_pgprot(*pte);
-	else
-		pgprot_val(current_prot) = 0;
+	for (i = 0; i < numpages ; i++) {
 
-	pgprot_val(prot) = pgprot_val(current_prot) | pgprot_val(prot);
+		pte = lookup_address(addr, &level);
+		if (pte)
+			current_prot = pte_pgprot(*pte);
+		else
+			pgprot_val(current_prot) = 0;
 
-	return change_page_attr_addr(addr, numpages, prot);
+		pgprot_val(prot) = pgprot_val(current_prot) | pgprot_val(prot);
+
+		ret = change_page_attr_addr(addr, prot);
+		if (ret)
+			return ret;
+		addr += PAGE_SIZE;
+	}
+	return 0;
 }
 
 /**
@@ -344,16 +348,24 @@ static int change_page_attr_clear(unsigned long addr, int numpages,
 	pgprot_t current_prot;
 	int level;
 	pte_t *pte;
-
-	pte = lookup_address(addr, &level);
-	if (pte)
-		current_prot = pte_pgprot(*pte);
-	else
-		pgprot_val(current_prot) = 0;
-
-	pgprot_val(prot) = pgprot_val(current_prot) & ~pgprot_val(prot);
-
-	return change_page_attr_addr(addr, numpages, prot);
+	int i, ret;
+
+	for (i = 0; i < numpages; i++) {
+		pte = lookup_address(addr, &level);
+		if (pte)
+			current_prot = pte_pgprot(*pte);
+		else
+			pgprot_val(current_prot) = 0;
+
+		pgprot_val(prot) =
+				pgprot_val(current_prot) & ~pgprot_val(prot);
+
+		ret = change_page_attr_addr(addr, prot);
+		if (ret)
+			return ret;
+		addr += PAGE_SIZE;
+	}
+	return 0;
 }
 
 int set_memory_uc(unsigned long addr, int numpages)
-- 
cgit v1.2.3-59-g8ed1b


From 3c1df68b848b39270752ff8d4b956cc4a4dce0f6 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:34:07 +0100
Subject: x86: make sure initmem is writable

When we free initmem, various rodata and CPA checks may have left
memory read only.. this patch ensures that the memory is writable
before we free it.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_32.c | 7 +++++++
 arch/x86/mm/init_64.c | 1 +
 2 files changed, 8 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 0d3369b900e9..4d1156545194 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -780,6 +780,13 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 {
 	unsigned long addr;
 
+	/*
+	 * We just marked the kernel text read only above, now that
+	 * we are going to free part of that, we need to make that
+	 * writeable first.
+	 */
+	set_memory_rw(begin, (end - begin) >> PAGE_SHIFT);
+
 	for (addr = begin; addr < end; addr += PAGE_SIZE) {
 		ClearPageReserved(virt_to_page(addr));
 		init_page_count(virt_to_page(addr));
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 9b69fa54a831..f97ace7a55e5 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -570,6 +570,7 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 	 * 2Mb kernel mapping just for this debug feature.
 	 */
 	if (begin >= __START_KERNEL_map) {
+		set_memory_rw(begin, (end - begin)/PAGE_SIZE);
 		set_memory_np(begin, (end - begin)/PAGE_SIZE);
 		set_memory_nx(begin, (end - begin)/PAGE_SIZE);
 	}
-- 
cgit v1.2.3-59-g8ed1b


From a72a08a4b61cb8868606a69b744848552e92062b Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:07 +0100
Subject: x86: cpa: fix split thinko

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 23f0aa3d01c1..a2ee317548f2 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -216,8 +216,12 @@ repeat:
 	prot = static_protections(prot, address);
 
 	if (level == PG_LEVEL_4K) {
+		WARN_ON_ONCE(pgprot_val(prot) & _PAGE_PSE);
 		set_pte_atomic(kpte, pfn_pte(pfn, canon_pgprot(prot)));
 	} else {
+		/* Clear the PSE bit for the 4k level pages ! */
+		pgprot_val(prot) = pgprot_val(prot) & ~_PAGE_PSE;
+
 		err = split_large_page(kpte, address);
 		if (!err)
 			goto repeat;
-- 
cgit v1.2.3-59-g8ed1b


From 4692a1450b4d1000a942022b088c8791749dd65e Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:07 +0100
Subject: x86: cpa: fix loop

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index a2ee317548f2..5cfc0d4ade56 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -304,7 +304,7 @@ static int change_page_attr_addr(unsigned long address, pgprot_t prot)
 static int change_page_attr_set(unsigned long addr, int numpages,
 								pgprot_t prot)
 {
-	pgprot_t current_prot;
+	pgprot_t current_prot, new_prot;
 	int level;
 	pte_t *pte;
 	int i, ret;
@@ -317,9 +317,10 @@ static int change_page_attr_set(unsigned long addr, int numpages,
 		else
 			pgprot_val(current_prot) = 0;
 
-		pgprot_val(prot) = pgprot_val(current_prot) | pgprot_val(prot);
+		pgprot_val(new_prot) =
+			pgprot_val(current_prot) | pgprot_val(prot);
 
-		ret = change_page_attr_addr(addr, prot);
+		ret = change_page_attr_addr(addr, new_prot);
 		if (ret)
 			return ret;
 		addr += PAGE_SIZE;
@@ -349,7 +350,7 @@ static int change_page_attr_set(unsigned long addr, int numpages,
 static int change_page_attr_clear(unsigned long addr, int numpages,
 								pgprot_t prot)
 {
-	pgprot_t current_prot;
+	pgprot_t current_prot, new_prot;
 	int level;
 	pte_t *pte;
 	int i, ret;
@@ -361,10 +362,10 @@ static int change_page_attr_clear(unsigned long addr, int numpages,
 		else
 			pgprot_val(current_prot) = 0;
 
-		pgprot_val(prot) =
+		pgprot_val(new_prot) =
 				pgprot_val(current_prot) & ~pgprot_val(prot);
 
-		ret = change_page_attr_addr(addr, prot);
+		ret = change_page_attr_addr(addr, new_prot);
 		if (ret)
 			return ret;
 		addr += PAGE_SIZE;
-- 
cgit v1.2.3-59-g8ed1b


From 6eade8ff461fdf13ec6780602eb5618e0bdaa972 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:08 +0100
Subject: x86: cpa: clean up change_page_attr_set/clear()

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 5cfc0d4ade56..145f5edf488a 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -312,10 +312,10 @@ static int change_page_attr_set(unsigned long addr, int numpages,
 	for (i = 0; i < numpages ; i++) {
 
 		pte = lookup_address(addr, &level);
-		if (pte)
-			current_prot = pte_pgprot(*pte);
-		else
-			pgprot_val(current_prot) = 0;
+		if (!pte)
+			return -EINVAL;
+
+		current_prot = pte_pgprot(*pte);
 
 		pgprot_val(new_prot) =
 			pgprot_val(current_prot) | pgprot_val(prot);
@@ -356,11 +356,12 @@ static int change_page_attr_clear(unsigned long addr, int numpages,
 	int i, ret;
 
 	for (i = 0; i < numpages; i++) {
+
 		pte = lookup_address(addr, &level);
-		if (pte)
-			current_prot = pte_pgprot(*pte);
-		else
-			pgprot_val(current_prot) = 0;
+		if (!pte)
+			return -EINVAL;
+
+		current_prot = pte_pgprot(*pte);
 
 		pgprot_val(new_prot) =
 				pgprot_val(current_prot) & ~pgprot_val(prot);
-- 
cgit v1.2.3-59-g8ed1b


From adafdf6a4e45f2d1051e10aebe13025e89dbdf6d Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:08 +0100
Subject: x86: ioremap KERN_INFO

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 6a9a1418bc98..ac9ab20d8092 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -293,7 +293,7 @@ void __init early_ioremap_init(void)
 	unsigned long *pgd;
 
 	if (early_ioremap_debug)
-		printk(KERN_DEBUG "early_ioremap_init()\n");
+		printk(KERN_INFO "early_ioremap_init()\n");
 
 	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
 	*pgd = __pa(bm_pte) | _PAGE_TABLE;
@@ -322,7 +322,7 @@ void __init early_ioremap_clear(void)
 	unsigned long *pgd;
 
 	if (early_ioremap_debug)
-		printk(KERN_DEBUG "early_ioremap_clear()\n");
+		printk(KERN_INFO "early_ioremap_clear()\n");
 
 	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
 	*pgd = 0;
@@ -408,7 +408,7 @@ void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 
 	nesting = early_ioremap_nested;
 	if (early_ioremap_debug) {
-		printk(KERN_DEBUG "early_ioremap(%08lx, %08lx) [%d] => ",
+		printk(KERN_INFO "early_ioremap(%08lx, %08lx) [%d] => ",
 		       phys_addr, size, nesting);
 		dump_stack();
 	}
@@ -470,7 +470,7 @@ void __init early_iounmap(void *addr, unsigned long size)
 	WARN_ON(nesting < 0);
 
 	if (early_ioremap_debug) {
-		printk(KERN_DEBUG "early_iounmap(%p, %08lx) [%d]\n", addr,
+		printk(KERN_INFO "early_iounmap(%p, %08lx) [%d]\n", addr,
 		       size, nesting);
 		dump_stack();
 	}
-- 
cgit v1.2.3-59-g8ed1b


From edeed30589f5defe63ce6aaae56f2b7c855e4520 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@infradead.org>
Date: Wed, 30 Jan 2008 13:34:08 +0100
Subject: x86: add testcases for RODATA and NX protections/attributes

Latest update; I now have 4 NX tests, but 2 fail so they're #if 0'd.
I also cleaned up the NX test code quite a bit, and got rid of the ugly
exception table sorting stuff.

From: Arjan van de Ven <arjan@linux.intel.com>

This patch adds testcases for the CONFIG_DEBUG_RODATA configuration option
as well as the NX CPU feature/mappings. Both testcases can move to tests/
once that patch gets merged into mainline.
(I'm half considering moving the rodata test into mm/init.c but I'll
wait with that until init.c is unified)

As part of this I had to fix a not-quite-right alignment in the vmlinux.lds.h
for the RODATA sections, which lead to 1 page less being marked read only.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/test_nx.c         | 176 ++++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/test_rodata.c     |  86 +++++++++++++++++++
 arch/x86/mm/init_32.c             |   3 +
 arch/x86/mm/init_64.c             |   3 +
 include/asm-generic/vmlinux.lds.h |   1 +
 include/asm-x86/cacheflush.h      |   7 ++
 6 files changed, 276 insertions(+)
 create mode 100644 arch/x86/kernel/test_nx.c
 create mode 100644 arch/x86/kernel/test_rodata.c

(limited to 'arch')

diff --git a/arch/x86/kernel/test_nx.c b/arch/x86/kernel/test_nx.c
new file mode 100644
index 000000000000..6d7ef11e7975
--- /dev/null
+++ b/arch/x86/kernel/test_nx.c
@@ -0,0 +1,176 @@
+/*
+ * test_nx.c: functional test for NX functionality
+ *
+ * (C) Copyright 2008 Intel Corporation
+ * Author: Arjan van de Ven <arjan@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#include <linux/module.h>
+#include <linux/sort.h>
+#include <asm/uaccess.h>
+
+extern int rodata_test_data;
+
+/*
+ * This file checks 4 things:
+ * 1) Check if the stack is not executable
+ * 2) Check if kmalloc memory is not executable
+ * 3) Check if the .rodata section is not executable
+ * 4) Check if the .data section of a module is not executable
+ *
+ * To do this, the test code tries to execute memory in stack/kmalloc/etc,
+ * and then checks if the expected trap happens.
+ *
+ * Sadly, this implies having a dynamic exception handling table entry.
+ * ... which can be done (and will make Rusty cry)... but it can only
+ * be done in a stand-alone module with only 1 entry total.
+ * (otherwise we'd have to sort and that's just too messy)
+ */
+
+
+
+/*
+ * We want to set up an exception handling point on our stack,
+ * which means a variable value. This function is rather dirty
+ * and walks the exception table of the module, looking for a magic
+ * marker and replaces it with a specific function.
+ */
+static void fudze_exception_table(void *marker, void *new)
+{
+	struct module *mod = THIS_MODULE;
+	struct exception_table_entry *extable;
+
+	/*
+	 * Note: This module has only 1 exception table entry,
+	 * so searching and sorting is not needed. If that changes,
+	 * this would be the place to search and re-sort the exception
+	 * table.
+	 */
+	if (mod->num_exentries > 1) {
+		printk(KERN_ERR "test_nx: too many exception table entries!\n");
+		printk(KERN_ERR "test_nx: test results are not reliable.\n");
+		return;
+	}
+	extable = (struct exception_table_entry *)mod->extable;
+	extable[0].insn = (unsigned long)new;
+}
+
+
+/*
+ * exception tables get their symbols translated so we need
+ * to use a fake function to put in there, which we can then
+ * replace at runtime.
+ */
+void foo_label(void);
+
+/*
+ * returns 0 for not-executable, negative for executable
+ *
+ * Note: we cannot allow this function to be inlined, because
+ * that would give us more than 1 exception table entry.
+ * This in turn would break the assumptions above.
+ */
+static noinline int test_address(void *address)
+{
+	unsigned long result;
+
+	/* Set up an exception table entry for our address */
+	fudze_exception_table(&foo_label, address);
+	result = 1;
+	asm volatile(
+		"foo_label:\n"
+		"0:	call *%[fake_code]\n"
+		"1:\n"
+		".section .fixup,\"ax\"\n"
+		"2:	mov %[zero], %[rslt]\n"
+		"	ret\n"
+		".previous\n"
+		".section __ex_table,\"a\"\n"
+		"       .align 8\n"
+		"	.quad 0b\n"
+		"	.quad 2b\n"
+		".previous\n"
+		: [rslt] "=r" (result)
+		: [fake_code] "r" (address), [zero] "r" (0UL), "0" (result)
+	);
+	/* change the exception table back for the next round */
+	fudze_exception_table(address, &foo_label);
+
+	if (result)
+		return -ENODEV;
+	return 0;
+}
+
+static unsigned char test_data = 0xC3; /* 0xC3 is the opcode for "ret" */
+
+static int test_NX(void)
+{
+	int ret = 0;
+	/* 0xC3 is the opcode for "ret" */
+	char stackcode[] = {0xC3, 0x90, 0 };
+	char *heap;
+
+	test_data = 0xC3;
+
+	printk(KERN_INFO "Testing NX protection\n");
+
+	/* Test 1: check if the stack is not executable */
+	if (test_address(&stackcode)) {
+		printk(KERN_ERR "test_nx: stack was executable\n");
+		ret = -ENODEV;
+	}
+
+
+	/* Test 2: Check if the heap is executable */
+	heap = kmalloc(64, GFP_KERNEL);
+	if (!heap)
+		return -ENOMEM;
+	heap[0] = 0xC3; /* opcode for "ret" */
+
+	if (test_address(heap)) {
+		printk(KERN_ERR "test_nx: heap was executable\n");
+		ret = -ENODEV;
+	}
+	kfree(heap);
+
+	/*
+	 * The following 2 tests currently fail, this needs to get fixed
+	 * Until then, don't run them to avoid too many people getting scared
+	 * by the error message
+	 */
+#if 0
+
+#ifdef CONFIG_DEBUG_RODATA
+	/* Test 3: Check if the .rodata section is executable */
+	if (rodata_test_data != 0xC3) {
+		printk(KERN_ERR "test_nx: .rodata marker has invalid value\n");
+		ret = -ENODEV;
+	} else if (test_address(&rodata_test_data)) {
+		printk(KERN_ERR "test_nx: .rodata section is executable\n");
+		ret = -ENODEV;
+	}
+#endif
+
+	/* Test 4: Check if the .data section of a module is executable */
+	if (test_address(&test_data)) {
+		printk(KERN_ERR "test_nx: .data section is executable\n");
+		ret = -ENODEV;
+	}
+
+#endif
+	return 0;
+}
+
+static void test_exit(void)
+{
+}
+
+module_init(test_NX);
+module_exit(test_exit);
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Testcase for the NX infrastructure");
+MODULE_AUTHOR("Arjan van de Ven <arjan@linux.intel.com>");
diff --git a/arch/x86/kernel/test_rodata.c b/arch/x86/kernel/test_rodata.c
new file mode 100644
index 000000000000..4c163772000e
--- /dev/null
+++ b/arch/x86/kernel/test_rodata.c
@@ -0,0 +1,86 @@
+/*
+ * test_rodata.c: functional test for mark_rodata_ro function
+ *
+ * (C) Copyright 2008 Intel Corporation
+ * Author: Arjan van de Ven <arjan@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#include <linux/module.h>
+#include <asm/sections.h>
+extern int rodata_test_data;
+
+int rodata_test(void)
+{
+	unsigned long result;
+	unsigned long start, end;
+
+	/* test 1: read the value */
+	/* If this test fails, some previous testrun has clobbered the state */
+	if (!rodata_test_data) {
+		printk(KERN_ERR "rodata_test: test 1 fails (start data)\n");
+		return -ENODEV;
+	}
+
+	/* test 2: write to the variable; this should fault */
+	/*
+	 * If this test fails, we managed to overwrite the data
+	 *
+	 * This is written in assembly to be able to catch the
+	 * exception that is supposed to happen in the correct
+	 * case
+	 */
+
+	result = 1;
+	asm volatile(
+		"0:	mov %[zero],(%[rodata_test])\n"
+		"	mov %[zero], %[rslt]\n"
+		"1:\n"
+		".section .fixup,\"ax\"\n"
+		"2:	jmp 1b\n"
+		".previous\n"
+		".section __ex_table,\"a\"\n"
+		"       .align 16\n"
+#ifdef CONFIG_X86_32
+		"	.long 0b,2b\n"
+#else
+		"	.quad 0b,2b\n"
+#endif
+		".previous"
+		: [rslt] "=r" (result)
+		: [rodata_test] "r" (&rodata_test_data), [zero] "r" (0UL)
+	);
+
+
+	if (!result) {
+		printk(KERN_ERR "rodata_test: test data was not read only\n");
+		return -ENODEV;
+	}
+
+	/* test 3: check the value hasn't changed */
+	/* If this test fails, we managed to overwrite the data */
+	if (!rodata_test_data) {
+		printk(KERN_ERR "rodata_test: Test 3 failes (end data)\n");
+		return -ENODEV;
+	}
+	/* test 4: check if the rodata section is 4Kb aligned */
+	start = (unsigned long)__start_rodata;
+	end = (unsigned long)__end_rodata;
+	if (start & (PAGE_SIZE - 1)) {
+		printk(KERN_ERR "rodata_test: .rodata is not 4k aligned\n");
+		return -ENODEV;
+	}
+	if (end & (PAGE_SIZE - 1)) {
+		printk(KERN_ERR "rodata_test: .rodata end is not 4k aligned\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Testcase for the DEBUG_RODATA infrastructure");
+MODULE_AUTHOR("Arjan van de Ven <arjan@linux.intel.com>");
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 4d1156545194..a72737c05747 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -736,6 +736,8 @@ static int noinline do_test_wp_bit(void)
 }
 
 #ifdef CONFIG_DEBUG_RODATA
+const int rodata_test_data = 0xC3;
+EXPORT_SYMBOL_GPL(rodata_test_data);
 
 void mark_rodata_ro(void)
 {
@@ -765,6 +767,7 @@ void mark_rodata_ro(void)
 	set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
 	printk("Write protecting the kernel read-only data: %luk\n",
 	       size >> 10);
+	rodata_test();
 
 #ifdef CONFIG_CPA_DEBUG
 	printk("Testing CPA: undo %lx-%lx\n", start, start + size);
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index f97ace7a55e5..50d29f5da02b 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -573,6 +573,7 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 		set_memory_rw(begin, (end - begin)/PAGE_SIZE);
 		set_memory_np(begin, (end - begin)/PAGE_SIZE);
 		set_memory_nx(begin, (end - begin)/PAGE_SIZE);
+		rodata_test();
 	}
 #endif
 }
@@ -585,6 +586,8 @@ void free_initmem(void)
 }
 
 #ifdef CONFIG_DEBUG_RODATA
+const int rodata_test_data = 0xC3;
+EXPORT_SYMBOL_GPL(rodata_test_data);
 
 void mark_rodata_ro(void)
 {
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 76df771be585..f784d2f34149 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -184,6 +184,7 @@
 		VMLINUX_SYMBOL(__start___param) = .;			\
 		*(__param)						\
 		VMLINUX_SYMBOL(__stop___param) = .;			\
+		. = ALIGN((align));					\
 		VMLINUX_SYMBOL(__end_rodata) = .;			\
 	}								\
 	. = ALIGN((align));
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index 157da0206ccc..3e74aff90809 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -47,5 +47,12 @@ void clflush_cache_range(void *addr, int size);
 #ifdef CONFIG_DEBUG_RODATA
 void mark_rodata_ro(void);
 #endif
+#ifdef CONFIG_DEBUG_RODATA_TEST
+void rodata_test(void);
+#else
+static inline void rodata_test(void)
+{
+}
+#endif
 
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 72932c7ad2cc309b0ba6149aa31faa26aaee54d5 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:08 +0100
Subject: x86: cpa move the flush into set and clear functions

To avoid the modification of the flush code for the clflush
implementation, move the flush into the set and clear functions and
provide helper functions for the debugging code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/pageattr-test.c |  8 ++---
 arch/x86/mm/pageattr.c      | 87 ++++++++++++++++++++-------------------------
 2 files changed, 43 insertions(+), 52 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index fe73905d075e..4e8b8c6baccd 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -162,8 +162,8 @@ static __init int exercise_pageattr(void)
 			continue;
 		}
 
-		err = change_page_attr_clear(addr[i], len[i],
-						__pgprot(_PAGE_GLOBAL));
+		err = __change_page_attr_clear(addr[i], len[i],
+					       __pgprot(_PAGE_GLOBAL));
 		if (err < 0) {
 			printk(KERN_ERR "CPA %d failed %d\n", i, err);
 			failed++;
@@ -197,8 +197,8 @@ static __init int exercise_pageattr(void)
 			failed++;
 			continue;
 		}
-		err = change_page_attr_set(addr[i], len[i],
-							__pgprot(_PAGE_GLOBAL));
+		err = __change_page_attr_set(addr[i], len[i],
+					     __pgprot(_PAGE_GLOBAL));
 		if (err < 0) {
 			printk(KERN_ERR "CPA reverting failed: %d\n", err);
 			failed++;
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 145f5edf488a..55f5b5cdb12e 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -301,8 +301,8 @@ static int change_page_attr_addr(unsigned long address, pgprot_t prot)
  * This function is different from change_page_attr() in that only selected bits
  * are impacted, all other bits remain as is.
  */
-static int change_page_attr_set(unsigned long addr, int numpages,
-								pgprot_t prot)
+static int __change_page_attr_set(unsigned long addr, int numpages,
+				  pgprot_t prot)
 {
 	pgprot_t current_prot, new_prot;
 	int level;
@@ -325,9 +325,19 @@ static int change_page_attr_set(unsigned long addr, int numpages,
 			return ret;
 		addr += PAGE_SIZE;
 	}
+
 	return 0;
 }
 
+static int change_page_attr_set(unsigned long addr, int numpages, pgprot_t prot)
+{
+	int ret = __change_page_attr_set(addr, numpages, prot);
+
+	global_flush_tlb();
+	return ret;
+
+}
+
 /**
  * change_page_attr_clear - Change page table attributes in the linear mapping.
  * @addr: Virtual address in linear mapping.
@@ -347,8 +357,8 @@ static int change_page_attr_set(unsigned long addr, int numpages,
  * This function is different from change_page_attr() in that only selected bits
  * are impacted, all other bits remain as is.
  */
-static int change_page_attr_clear(unsigned long addr, int numpages,
-								pgprot_t prot)
+static int __change_page_attr_clear(unsigned long addr, int numpages,
+				    pgprot_t prot)
 {
 	pgprot_t current_prot, new_prot;
 	int level;
@@ -371,81 +381,59 @@ static int change_page_attr_clear(unsigned long addr, int numpages,
 			return ret;
 		addr += PAGE_SIZE;
 	}
+
 	return 0;
 }
 
-int set_memory_uc(unsigned long addr, int numpages)
+static int change_page_attr_clear(unsigned long addr, int numpages,
+				  pgprot_t prot)
 {
-	int err;
+	int ret = __change_page_attr_clear(addr, numpages, prot);
 
-	err = change_page_attr_set(addr, numpages,
-				__pgprot(_PAGE_PCD | _PAGE_PWT));
 	global_flush_tlb();
-	return err;
+	return ret;
+
+}
+
+int set_memory_uc(unsigned long addr, int numpages)
+{
+	return change_page_attr_set(addr, numpages,
+				    __pgprot(_PAGE_PCD | _PAGE_PWT));
 }
 EXPORT_SYMBOL(set_memory_uc);
 
 int set_memory_wb(unsigned long addr, int numpages)
 {
-	int err;
-
-	err = change_page_attr_clear(addr, numpages,
-				__pgprot(_PAGE_PCD | _PAGE_PWT));
-	global_flush_tlb();
-	return err;
+	return change_page_attr_clear(addr, numpages,
+				      __pgprot(_PAGE_PCD | _PAGE_PWT));
 }
 EXPORT_SYMBOL(set_memory_wb);
 
 int set_memory_x(unsigned long addr, int numpages)
 {
-	int err;
-
-	err = change_page_attr_clear(addr, numpages,
-				__pgprot(_PAGE_NX));
-	global_flush_tlb();
-	return err;
+	return change_page_attr_clear(addr, numpages, __pgprot(_PAGE_NX));
 }
 EXPORT_SYMBOL(set_memory_x);
 
 int set_memory_nx(unsigned long addr, int numpages)
 {
-	int err;
-
-	err = change_page_attr_set(addr, numpages,
-				__pgprot(_PAGE_NX));
-	global_flush_tlb();
-	return err;
+	return change_page_attr_set(addr, numpages, __pgprot(_PAGE_NX));
 }
 EXPORT_SYMBOL(set_memory_nx);
 
 int set_memory_ro(unsigned long addr, int numpages)
 {
-	int err;
-
-	err = change_page_attr_clear(addr, numpages,
-				__pgprot(_PAGE_RW));
-	global_flush_tlb();
-	return err;
+	return change_page_attr_clear(addr, numpages, __pgprot(_PAGE_RW));
 }
 
 int set_memory_rw(unsigned long addr, int numpages)
 {
-	int err;
-
-	err = change_page_attr_set(addr, numpages,
-				__pgprot(_PAGE_RW));
-	global_flush_tlb();
-	return err;
+	return change_page_attr_set(addr, numpages, __pgprot(_PAGE_RW));
 }
 
 int set_memory_np(unsigned long addr, int numpages)
 {
-	int err;
-
-	err = change_page_attr_clear(addr, numpages,
-				__pgprot(_PAGE_PRESENT));
-	global_flush_tlb();
-	return err;
+	return change_page_attr_clear(addr, numpages, __pgprot(_PAGE_PRESENT));
 }
 
 int set_pages_uc(struct page *page, int numpages)
@@ -500,14 +488,17 @@ int set_pages_rw(struct page *page, int numpages)
 static int __set_pages_p(struct page *page, int numpages)
 {
 	unsigned long addr = (unsigned long)page_address(page);
-	return change_page_attr_set(addr, numpages,
-				__pgprot(_PAGE_PRESENT | _PAGE_RW));
+
+	return __change_page_attr_set(addr, numpages,
+				      __pgprot(_PAGE_PRESENT | _PAGE_RW));
 }
 
 static int __set_pages_np(struct page *page, int numpages)
 {
 	unsigned long addr = (unsigned long)page_address(page);
-	return change_page_attr_clear(addr, numpages, __pgprot(_PAGE_PRESENT));
+
+	return __change_page_attr_clear(addr, numpages,
+					__pgprot(_PAGE_PRESENT));
 }
 
 void kernel_map_pages(struct page *page, int numpages, int enable)
-- 
cgit v1.2.3-59-g8ed1b


From ff31452b6ea5032f26f16140d45dc6596260cd9c Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:08 +0100
Subject: x86: cpa create set_and_clr function

Create a set_and_clr function to avoid the duplicate loops. Allows
also to do combined operations for optimization.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/pageattr.c | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 55f5b5cdb12e..c54832b75069 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -282,6 +282,45 @@ static int change_page_attr_addr(unsigned long address, pgprot_t prot)
 	return err;
 }
 
+static int __change_page_attr_set_clr(unsigned long addr, int numpages,
+				      pgprot_t mask_set, pgprot_t mask_clr)
+{
+	pgprot_t new_prot;
+	int level;
+	pte_t *pte;
+	int i, ret;
+
+	for (i = 0; i < numpages ; i++) {
+
+		pte = lookup_address(addr, &level);
+		if (!pte)
+			return -EINVAL;
+
+		new_prot = pte_pgprot(*pte);
+
+		pgprot_val(new_prot) &= ~pgprot_val(mask_clr);
+		pgprot_val(new_prot) |= pgprot_val(mask_set);
+
+		ret = change_page_attr_addr(addr, new_prot);
+		if (ret)
+			return ret;
+		addr += PAGE_SIZE;
+	}
+
+	return 0;
+}
+
+static int change_page_attr_set_clr(unsigned long addr, int numpages,
+				    pgprot_t mask_set, pgprot_t mask_clr)
+{
+	int ret = __change_page_attr_set_clr(addr, numpages, mask_set,
+					     mask_clr);
+
+	global_flush_tlb();
+
+	return ret;
+}
+
 /**
  * change_page_attr_set - Change page table attributes in the linear mapping.
  * @addr: Virtual address in linear mapping.
-- 
cgit v1.2.3-59-g8ed1b


From 56744546b3e5379177a70e7306c6283f727e4732 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:08 +0100
Subject: x86: cpa use the new set_clr function

Convert cpa_set and cpa_clear to call the new set_clr function.
Seperate out the debug helpers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/pageattr.c | 126 ++++++++-----------------------------------------
 1 file changed, 20 insertions(+), 106 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index c54832b75069..7823adab96e4 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -321,116 +321,16 @@ static int change_page_attr_set_clr(unsigned long addr, int numpages,
 	return ret;
 }
 
-/**
- * change_page_attr_set - Change page table attributes in the linear mapping.
- * @addr: Virtual address in linear mapping.
- * @numpages: Number of pages to change
- * @prot: Protection/caching type bits to set (PAGE_*)
- *
- * Returns 0 on success, otherwise a negated errno.
- *
- * This should be used when a page is mapped with a different caching policy
- * than write-back somewhere - some CPUs do not like it when mappings with
- * different caching policies exist. This changes the page attributes of the
- * in kernel linear mapping too.
- *
- * The caller needs to ensure that there are no conflicting mappings elsewhere
- * (e.g. in user space) * This function only deals with the kernel linear map.
- *
- * This function is different from change_page_attr() in that only selected bits
- * are impacted, all other bits remain as is.
- */
-static int __change_page_attr_set(unsigned long addr, int numpages,
-				  pgprot_t prot)
+static inline int change_page_attr_set(unsigned long addr, int numpages,
+				       pgprot_t mask)
 {
-	pgprot_t current_prot, new_prot;
-	int level;
-	pte_t *pte;
-	int i, ret;
-
-	for (i = 0; i < numpages ; i++) {
-
-		pte = lookup_address(addr, &level);
-		if (!pte)
-			return -EINVAL;
-
-		current_prot = pte_pgprot(*pte);
-
-		pgprot_val(new_prot) =
-			pgprot_val(current_prot) | pgprot_val(prot);
-
-		ret = change_page_attr_addr(addr, new_prot);
-		if (ret)
-			return ret;
-		addr += PAGE_SIZE;
-	}
-
-	return 0;
+	return change_page_attr_set_clr(addr, numpages, mask, __pgprot(0));
 }
 
-static int change_page_attr_set(unsigned long addr, int numpages, pgprot_t prot)
+static inline int change_page_attr_clear(unsigned long addr, int numpages,
+					 pgprot_t mask)
 {
-	int ret = __change_page_attr_set(addr, numpages, prot);
-
-	global_flush_tlb();
-	return ret;
-
-}
-
-/**
- * change_page_attr_clear - Change page table attributes in the linear mapping.
- * @addr: Virtual address in linear mapping.
- * @numpages: Number of pages to change
- * @prot: Protection/caching type bits to clear (PAGE_*)
- *
- * Returns 0 on success, otherwise a negated errno.
- *
- * This should be used when a page is mapped with a different caching policy
- * than write-back somewhere - some CPUs do not like it when mappings with
- * different caching policies exist. This changes the page attributes of the
- * in kernel linear mapping too.
- *
- * The caller needs to ensure that there are no conflicting mappings elsewhere
- * (e.g. in user space) * This function only deals with the kernel linear map.
- *
- * This function is different from change_page_attr() in that only selected bits
- * are impacted, all other bits remain as is.
- */
-static int __change_page_attr_clear(unsigned long addr, int numpages,
-				    pgprot_t prot)
-{
-	pgprot_t current_prot, new_prot;
-	int level;
-	pte_t *pte;
-	int i, ret;
-
-	for (i = 0; i < numpages; i++) {
-
-		pte = lookup_address(addr, &level);
-		if (!pte)
-			return -EINVAL;
-
-		current_prot = pte_pgprot(*pte);
-
-		pgprot_val(new_prot) =
-				pgprot_val(current_prot) & ~pgprot_val(prot);
-
-		ret = change_page_attr_addr(addr, new_prot);
-		if (ret)
-			return ret;
-		addr += PAGE_SIZE;
-	}
-
-	return 0;
-}
-
-static int change_page_attr_clear(unsigned long addr, int numpages,
-				  pgprot_t prot)
-{
-	int ret = __change_page_attr_clear(addr, numpages, prot);
-
-	global_flush_tlb();
-	return ret;
+	return __change_page_attr_set_clr(addr, numpages, __pgprot(0), mask);
 
 }
 
@@ -522,6 +422,20 @@ int set_pages_rw(struct page *page, int numpages)
 }
 
 
+#if defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_CPA_DEBUG)
+static inline int __change_page_attr_set(unsigned long addr, int numpages,
+					 pgprot_t mask)
+{
+	return __change_page_attr_set_clr(addr, numpages, mask, __pgprot(0));
+}
+
+static inline int __change_page_attr_clear(unsigned long addr, int numpages,
+					   pgprot_t mask)
+{
+	return __change_page_attr_set_clr(addr, numpages, __pgprot(0), mask);
+}
+#endif
+
 #ifdef CONFIG_DEBUG_PAGEALLOC
 
 static int __set_pages_p(struct page *page, int numpages)
-- 
cgit v1.2.3-59-g8ed1b


From 57a6a46aa26d6e39c62daf8b3b96e94f76e6846f Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:08 +0100
Subject: x86: cpa: implement clflush optimization

Use clflush on CPUs which support this.

clflush is only used when the page attribute operation has been
successful. On CPUs which do not support clflush and in the case of
error the old fashioned global_flush_tlb() is called.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/pageattr.c | 42 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 41 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 7823adab96e4..bbe691dd272e 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -52,6 +52,37 @@ static void global_flush_tlb(void)
 	on_each_cpu(flush_kernel_map, NULL, 1, 1);
 }
 
+struct clflush_data {
+	unsigned long addr;
+	int numpages;
+};
+
+static void __cpa_flush_range(void *arg)
+{
+	struct clflush_data *cld = arg;
+
+	/*
+	 * We could optimize that further and do individual per page
+	 * tlb invalidates for a low number of pages. Caveat: we must
+	 * flush the high aliases on 64bit as well.
+	 */
+	__flush_tlb_all();
+
+	clflush_cache_range((void *) cld->addr, cld->numpages * PAGE_SIZE);
+}
+
+static void cpa_flush_range(unsigned long addr, int numpages)
+{
+	struct clflush_data cld;
+
+	BUG_ON(irqs_disabled());
+
+	cld.addr = addr;
+	cld.numpages = numpages;
+
+	on_each_cpu(__cpa_flush_range, &cld, 1, 1);
+}
+
 /*
  * Certain areas of memory on x86 require very specific protection flags,
  * for example the BIOS area or kernel text. Callers don't always get this
@@ -316,7 +347,16 @@ static int change_page_attr_set_clr(unsigned long addr, int numpages,
 	int ret = __change_page_attr_set_clr(addr, numpages, mask_set,
 					     mask_clr);
 
-	global_flush_tlb();
+	/*
+	 * On success we use clflush, when the CPU supports it to
+	 * avoid the wbindv. If the CPU does not support it and in the
+	 * error case we fall back to global_flush_tlb (which uses
+	 * wbindv):
+	 */
+	if (!ret && cpu_has_clflush)
+		cpa_flush_range(addr, numpages);
+	else
+		global_flush_tlb();
 
 	return ret;
 }
-- 
cgit v1.2.3-59-g8ed1b


From af1e6844d60057774910a2d08bd75b67d73ba7d5 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:08 +0100
Subject: x86: cpa: rename global_flush_tlb() to cpa_flush_all()

The function name global_flush_tlb() suggests something different from
what the function really does. Rename it to cpa_flush_all(), which is an
understandable counterpart to cpa_flush_range().

no global visibility of the old API anymore.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/pageattr-test.c |  4 ++--
 arch/x86/mm/pageattr.c      | 10 +++++-----
 2 files changed, 7 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 4e8b8c6baccd..554820265b95 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -183,7 +183,7 @@ static __init int exercise_pageattr(void)
 
 	}
 	vfree(bm);
-	global_flush_tlb();
+	cpa_flush_all();
 
 	failed += print_split(&sb);
 
@@ -211,7 +211,7 @@ static __init int exercise_pageattr(void)
 		}
 
 	}
-	global_flush_tlb();
+	cpa_flush_all();
 
 	failed += print_split(&sc);
 
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index bbe691dd272e..cdd2ea2a2239 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -33,7 +33,7 @@ void clflush_cache_range(void *addr, int size)
 		clflush(addr+i);
 }
 
-static void flush_kernel_map(void *arg)
+static void __cpa_flush_all(void *arg)
 {
 	/*
 	 * Flush all to work around Errata in early athlons regarding
@@ -45,11 +45,11 @@ static void flush_kernel_map(void *arg)
 		wbinvd();
 }
 
-static void global_flush_tlb(void)
+static void cpa_flush_all(void)
 {
 	BUG_ON(irqs_disabled());
 
-	on_each_cpu(flush_kernel_map, NULL, 1, 1);
+	on_each_cpu(__cpa_flush_all, NULL, 1, 1);
 }
 
 struct clflush_data {
@@ -350,13 +350,13 @@ static int change_page_attr_set_clr(unsigned long addr, int numpages,
 	/*
 	 * On success we use clflush, when the CPU supports it to
 	 * avoid the wbindv. If the CPU does not support it and in the
-	 * error case we fall back to global_flush_tlb (which uses
+	 * error case we fall back to cpa_flush_all (which uses
 	 * wbindv):
 	 */
 	if (!ret && cpu_has_clflush)
 		cpa_flush_range(addr, numpages);
 	else
-		global_flush_tlb();
+		cpa_flush_all();
 
 	return ret;
 }
-- 
cgit v1.2.3-59-g8ed1b


From cd8ddf1a2800026dd58433333cce7a65cbc6c6d2 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:08 +0100
Subject: x86: clflush_page_range needs mfence

clflush is an unordered operation with respect to other memory
traffic, including other CLFLUSH instructions. This needs proper
fencing with mfence.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/pageattr.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index cdd2ea2a2239..90b658ac39c2 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -25,12 +25,24 @@ within(unsigned long addr, unsigned long start, unsigned long end)
 /*
  * Flushing functions
  */
+
+
+/**
+ * clflush_cache_range - flush a cache range with clflush
+ * @addr:	virtual start address
+ * @size:	number of bytes to flush
+ *
+ * clflush is an unordered instruction which needs fencing with mfence
+ * to avoid ordering issues.
+ */
 void clflush_cache_range(void *addr, int size)
 {
 	int i;
 
+	mb();
 	for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
 		clflush(addr+i);
+	mb();
 }
 
 static void __cpa_flush_all(void *arg)
-- 
cgit v1.2.3-59-g8ed1b


From 3b233e52f70bf102078b2c0c3f7f86a441689056 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:08 +0100
Subject: x86: optimize clflush

clflush is sufficient to be issued on one CPU. The invalidation is
broadcast throughout the coherence domain.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/pageattr.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 90b658ac39c2..bbfc8e2466ab 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -64,35 +64,29 @@ static void cpa_flush_all(void)
 	on_each_cpu(__cpa_flush_all, NULL, 1, 1);
 }
 
-struct clflush_data {
-	unsigned long addr;
-	int numpages;
-};
-
 static void __cpa_flush_range(void *arg)
 {
-	struct clflush_data *cld = arg;
-
 	/*
 	 * We could optimize that further and do individual per page
 	 * tlb invalidates for a low number of pages. Caveat: we must
 	 * flush the high aliases on 64bit as well.
 	 */
 	__flush_tlb_all();
-
-	clflush_cache_range((void *) cld->addr, cld->numpages * PAGE_SIZE);
 }
 
 static void cpa_flush_range(unsigned long addr, int numpages)
 {
-	struct clflush_data cld;
-
 	BUG_ON(irqs_disabled());
 
-	cld.addr = addr;
-	cld.numpages = numpages;
+	on_each_cpu(__cpa_flush_range, NULL, 1, 1);
 
-	on_each_cpu(__cpa_flush_range, &cld, 1, 1);
+	/*
+	 * We only need to flush on one CPU,
+	 * clflush is a MESI-coherent instruction that
+	 * will cause all other CPUs to flush the same
+	 * cachelines:
+	 */
+	clflush_cache_range((void *) addr, numpages * PAGE_SIZE);
 }
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From 4c61afcdb2cd4be299c1442b33adf312b695e2d7 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:09 +0100
Subject: x86: fix clflush_page_range logic

only present ptes must be flushed.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/pageattr.c       | 31 ++++++++++++++++++++++++-------
 include/asm-x86/cacheflush.h |  2 +-
 2 files changed, 25 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index bbfc8e2466ab..97ec9e7d29d9 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -26,7 +26,6 @@ within(unsigned long addr, unsigned long start, unsigned long end)
  * Flushing functions
  */
 
-
 /**
  * clflush_cache_range - flush a cache range with clflush
  * @addr:	virtual start address
@@ -35,13 +34,19 @@ within(unsigned long addr, unsigned long start, unsigned long end)
  * clflush is an unordered instruction which needs fencing with mfence
  * to avoid ordering issues.
  */
-void clflush_cache_range(void *addr, int size)
+void clflush_cache_range(void *vaddr, unsigned int size)
 {
-	int i;
+	void *vend = vaddr + size - 1;
 
 	mb();
-	for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
-		clflush(addr+i);
+
+	for (; vaddr < vend; vaddr += boot_cpu_data.x86_clflush_size)
+		clflush(vaddr);
+	/*
+	 * Flush any possible final partial cacheline:
+	 */
+	clflush(vend);
+
 	mb();
 }
 
@@ -74,9 +79,13 @@ static void __cpa_flush_range(void *arg)
 	__flush_tlb_all();
 }
 
-static void cpa_flush_range(unsigned long addr, int numpages)
+static void cpa_flush_range(unsigned long start, int numpages)
 {
+	unsigned int i, level;
+	unsigned long addr;
+
 	BUG_ON(irqs_disabled());
+	WARN_ON(PAGE_ALIGN(start) != start);
 
 	on_each_cpu(__cpa_flush_range, NULL, 1, 1);
 
@@ -86,7 +95,15 @@ static void cpa_flush_range(unsigned long addr, int numpages)
 	 * will cause all other CPUs to flush the same
 	 * cachelines:
 	 */
-	clflush_cache_range((void *) addr, numpages * PAGE_SIZE);
+	for (i = 0, addr = start; i < numpages; i++, addr += PAGE_SIZE) {
+		pte_t *pte = lookup_address(addr, &level);
+
+		/*
+		 * Only flush present addresses:
+		 */
+		if (pte && pte_present(*pte))
+			clflush_cache_range((void *) addr, PAGE_SIZE);
+	}
 }
 
 /*
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index 3e74aff90809..8dd8c5e3cc7f 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -42,7 +42,7 @@ int set_memory_ro(unsigned long addr, int numpages);
 int set_memory_rw(unsigned long addr, int numpages);
 int set_memory_np(unsigned long addr, int numpages);
 
-void clflush_cache_range(void *addr, int size);
+void clflush_cache_range(void *addr, unsigned int size);
 
 #ifdef CONFIG_DEBUG_RODATA
 void mark_rodata_ro(void);
-- 
cgit v1.2.3-59-g8ed1b


From 1a4872529e13265d05ffae75b8d09697540016d2 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 30 Jan 2008 13:34:09 +0100
Subject: x86: move misplaced rodata check call

It looks like a mismerge put the rodata self-check in the wrong spot; move
it to the right place after marking the .rodata section read only.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 50d29f5da02b..f51180c02b8f 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -573,7 +573,6 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 		set_memory_rw(begin, (end - begin)/PAGE_SIZE);
 		set_memory_np(begin, (end - begin)/PAGE_SIZE);
 		set_memory_nx(begin, (end - begin)/PAGE_SIZE);
-		rodata_test();
 	}
 #endif
 }
@@ -614,6 +613,8 @@ void mark_rodata_ro(void)
 	printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n",
 	       (end - start) >> 10);
 
+	rodata_test();
+
 #ifdef CONFIG_CPA_DEBUG
 	printk("Testing CPA: undo %lx-%lx\n", start, end);
 	set_memory_rw(start, (end-start) >> PAGE_SHIFT);
-- 
cgit v1.2.3-59-g8ed1b


From ee01f1122ceb02a2c9b7142c5dd17b49e59ba774 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:09 +0100
Subject: x86: init memory debugging

debug incorrect/late access to init memory, by permanently unmapping
the init memory ranges. Depends on CONFIG_DEBUG_PAGEALLOC=y.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_32.c | 11 +++++++++++
 arch/x86/mm/init_64.c | 11 +++++++++++
 2 files changed, 22 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index a72737c05747..8d7f723cfc28 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -783,6 +783,16 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 {
 	unsigned long addr;
 
+#ifdef CONFIG_DEBUG_PAGEALLOC
+	/*
+	 * If debugging page accesses then do not free this memory but
+	 * mark them not present - any buggy init-section access will
+	 * create a kernel page fault:
+	 */
+	printk(KERN_INFO "debug: unmapping init memory %08lx..%08lx\n",
+		begin, PAGE_ALIGN(end));
+	set_memory_np(begin, (end - begin) >> PAGE_SHIFT);
+#else
 	/*
 	 * We just marked the kernel text read only above, now that
 	 * we are going to free part of that, we need to make that
@@ -798,6 +808,7 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 		totalram_pages++;
 	}
 	printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
+#endif
 }
 
 void free_initmem(void)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index f51180c02b8f..e0c1e98ad1bf 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -550,6 +550,16 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 	if (begin >= end)
 		return;
 
+	/*
+	 * If debugging page accesses then do not free this memory but
+	 * mark them not present - any buggy init-section access will
+	 * create a kernel page fault:
+	 */
+#ifdef CONFIG_DEBUG_PAGEALLOC
+	printk(KERN_INFO "debug: unmapping init memory %08lx..%08lx\n",
+		begin, PAGE_ALIGN(end));
+	set_memory_np(begin, (end - begin) >> PAGE_SHIFT);
+#else
 	printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
 	for (addr = begin; addr < end; addr += PAGE_SIZE) {
 		ClearPageReserved(virt_to_page(addr));
@@ -575,6 +585,7 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 		set_memory_nx(begin, (end - begin)/PAGE_SIZE);
 	}
 #endif
+#endif
 }
 
 void free_initmem(void)
-- 
cgit v1.2.3-59-g8ed1b


From 8f46924600e30b140445f5b84abe9b80d2fff5fb Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:09 +0100
Subject: x86: enable CONFIG_DEBUG_PAGEALLOC more widely

make CONFIG_DEBUG_PAGEALLOC universally available.

CONFIG_HIBERNATION and CONFIG_HUGETLBFS was disabling it, for no
particular reason.

If there are any unfixed bugs here we'll fix it, but do not disable
vital debugging facilities like that ..

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.debug | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 2a859a7e2d74..347e33e5f395 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -40,7 +40,7 @@ comment "Page alloc debug is incompatible with Software Suspend on i386"
 
 config DEBUG_PAGEALLOC
 	bool "Debug page memory allocations"
-	depends on DEBUG_KERNEL && !HIBERNATION && !HUGETLBFS
+	depends on DEBUG_KERNEL
 	help
 	  Unmap pages from the kernel linear mapping after free_pages().
 	  This results in a large slowdown, but helps to find certain types
-- 
cgit v1.2.3-59-g8ed1b


From aba8391f7323294e88e3a665513434aba4042a7d Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:09 +0100
Subject: x86: rodata config hookup

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.debug   | 16 ++++++++++++++++
 arch/x86/kernel/Makefile |  2 ++
 2 files changed, 18 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 347e33e5f395..2d0bd33b73aa 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -68,6 +68,22 @@ config DEBUG_RODATA
 	  data. This is recommended so that we can catch kernel bugs sooner.
 	  If in doubt, say "Y".
 
+config DEBUG_RODATA_TEST
+	bool "Testcase for the DEBUG_RODATA feature"
+	depends on DEBUG_RODATA
+	help
+	  This option enables a testcase for the DEBUG_RODATA
+	  feature as well as for the change_page_attr() infrastructure.
+	  If in doubt, say "N"
+
+config DEBUG_NX_TEST
+	tristate "Testcase for the NX non-executable stack feature"
+	depends on DEBUG_KERNEL && m
+	help
+	  This option enables a testcase for the CPU NX capability
+	  and the software setup of this feature.
+	  If in doubt, say "N"
+
 config 4KSTACKS
 	bool "Use 4Kb for kernel stacks instead of 8Kb"
 	depends on DEBUG_KERNEL
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 5bdb0f0431e9..6f813009d44b 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -64,6 +64,8 @@ obj-$(CONFIG_HPET_TIMER) 	+= hpet.o
 
 obj-$(CONFIG_K8_NB)		+= k8.o
 obj-$(CONFIG_MGEODE_LX)		+= geode_32.o mfgpt_32.o
+obj-$(CONFIG_DEBUG_RODATA_TEST)	+= test_rodata.o
+obj-$(CONFIG_DEBUG_NX_TEST)	+= test_nx.o
 
 obj-$(CONFIG_VMI)		+= vmi_32.o vmiclock_32.o
 obj-$(CONFIG_PARAVIRT)		+= paravirt.o paravirt_patch_$(BITS).o
-- 
cgit v1.2.3-59-g8ed1b


From 86f03989d99cfa2e1216cdd7aa996852236909cf Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:09 +0100
Subject: x86: cpa: fix the self-test

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.debug      |  2 +-
 arch/x86/mm/init_32.c       |  4 +--
 arch/x86/mm/init_64.c       | 16 ----------
 arch/x86/mm/pageattr-test.c | 15 ++++-----
 arch/x86/mm/pageattr.c      | 74 +++++++++++++++++++++++----------------------
 include/asm-x86/pgtable.h   |  1 +
 6 files changed, 48 insertions(+), 64 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 2d0bd33b73aa..2e1e3af28c3a 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -40,7 +40,7 @@ comment "Page alloc debug is incompatible with Software Suspend on i386"
 
 config DEBUG_PAGEALLOC
 	bool "Debug page memory allocations"
-	depends on DEBUG_KERNEL
+	depends on DEBUG_KERNEL && X86_32
 	help
 	  Unmap pages from the kernel linear mapping after free_pages().
 	  This results in a large slowdown, but helps to find certain types
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 8d7f723cfc28..8ed5c189d7aa 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -781,8 +781,6 @@ void mark_rodata_ro(void)
 
 void free_init_pages(char *what, unsigned long begin, unsigned long end)
 {
-	unsigned long addr;
-
 #ifdef CONFIG_DEBUG_PAGEALLOC
 	/*
 	 * If debugging page accesses then do not free this memory but
@@ -793,6 +791,8 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 		begin, PAGE_ALIGN(end));
 	set_memory_np(begin, (end - begin) >> PAGE_SHIFT);
 #else
+	unsigned long addr;
+
 	/*
 	 * We just marked the kernel text read only above, now that
 	 * we are going to free part of that, we need to make that
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index e0c1e98ad1bf..8a7b725ce3c7 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -569,22 +569,6 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 		free_page(addr);
 		totalram_pages++;
 	}
-#ifdef CONFIG_DEBUG_RODATA
-	/*
-	 * This will make the __init pages not present and
-	 * not executable, so that any attempt to use a
-	 * __init function from now on will fault immediately
-	 * rather than supriously later when memory gets reused.
-	 *
-	 * We only do this for DEBUG_RODATA to not break up the
-	 * 2Mb kernel mapping just for this debug feature.
-	 */
-	if (begin >= __START_KERNEL_map) {
-		set_memory_rw(begin, (end - begin)/PAGE_SIZE);
-		set_memory_np(begin, (end - begin)/PAGE_SIZE);
-		set_memory_nx(begin, (end - begin)/PAGE_SIZE);
-	}
-#endif
 #endif
 }
 
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 554820265b95..06353d43f72e 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -15,8 +15,7 @@
 #include <asm/kdebug.h>
 
 enum {
-	NTEST			= 400,
-	LOWEST_LEVEL		= PG_LEVEL_4K,
+	NTEST			= 4000,
 #ifdef CONFIG_X86_64
 	LPS			= (1 << PMD_SHIFT),
 #elif defined(CONFIG_X86_PAE)
@@ -59,10 +58,10 @@ static __init int print_split(struct split_state *s)
 			continue;
 		}
 
-		if (level == 2 && sizeof(long) == 8) {
+		if (level == PG_LEVEL_1G && sizeof(long) == 8) {
 			s->gpg++;
 			i += GPS/PAGE_SIZE;
-		} else if (level != LOWEST_LEVEL) {
+		} else if (level == PG_LEVEL_2M) {
 			if (!(pte_val(*pte) & _PAGE_PSE)) {
 				printk(KERN_ERR
 					"%lx level %d but not PSE %Lx\n",
@@ -162,7 +161,7 @@ static __init int exercise_pageattr(void)
 			continue;
 		}
 
-		err = __change_page_attr_clear(addr[i], len[i],
+		err = change_page_attr_clear(addr[i], len[i],
 					       __pgprot(_PAGE_GLOBAL));
 		if (err < 0) {
 			printk(KERN_ERR "CPA %d failed %d\n", i, err);
@@ -175,7 +174,7 @@ static __init int exercise_pageattr(void)
 				pte ? (u64)pte_val(*pte) : 0ULL);
 			failed++;
 		}
-		if (level != LOWEST_LEVEL) {
+		if (level != PG_LEVEL_4K) {
 			printk(KERN_ERR "CPA %lx: unexpected level %d\n",
 				addr[i], level);
 			failed++;
@@ -183,7 +182,6 @@ static __init int exercise_pageattr(void)
 
 	}
 	vfree(bm);
-	cpa_flush_all();
 
 	failed += print_split(&sb);
 
@@ -197,7 +195,7 @@ static __init int exercise_pageattr(void)
 			failed++;
 			continue;
 		}
-		err = __change_page_attr_set(addr[i], len[i],
+		err = change_page_attr_set(addr[i], len[i],
 					     __pgprot(_PAGE_GLOBAL));
 		if (err < 0) {
 			printk(KERN_ERR "CPA reverting failed: %d\n", err);
@@ -211,7 +209,6 @@ static __init int exercise_pageattr(void)
 		}
 
 	}
-	cpa_flush_all();
 
 	failed += print_split(&sc);
 
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 97ec9e7d29d9..532a40bc0e7e 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -197,10 +197,11 @@ static int split_large_page(pte_t *kpte, unsigned long address)
 	unsigned long addr;
 	pte_t *pbase, *tmp;
 	struct page *base;
-	int i, level;
+	unsigned int i, level;
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
-	gfp_flags = GFP_ATOMIC;
+	gfp_flags = __GFP_HIGH | __GFP_NOFAIL | __GFP_NOWARN;
+	gfp_flags = GFP_ATOMIC | __GFP_NOWARN;
 #endif
 	base = alloc_pages(gfp_flags, 0);
 	if (!base)
@@ -224,6 +225,7 @@ static int split_large_page(pte_t *kpte, unsigned long address)
 	paravirt_alloc_pt(&init_mm, page_to_pfn(base));
 #endif
 
+	pgprot_val(ref_prot) &= ~_PAGE_NX;
 	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
 		set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));
 
@@ -248,7 +250,8 @@ out_unlock:
 }
 
 static int
-__change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot)
+__change_page_attr(unsigned long address, unsigned long pfn,
+		   pgprot_t mask_set, pgprot_t mask_clr)
 {
 	struct page *kpte_page;
 	int level, err = 0;
@@ -267,15 +270,20 @@ repeat:
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
 
-	prot = static_protections(prot, address);
-
 	if (level == PG_LEVEL_4K) {
-		WARN_ON_ONCE(pgprot_val(prot) & _PAGE_PSE);
-		set_pte_atomic(kpte, pfn_pte(pfn, canon_pgprot(prot)));
-	} else {
-		/* Clear the PSE bit for the 4k level pages ! */
-		pgprot_val(prot) = pgprot_val(prot) & ~_PAGE_PSE;
+		pgprot_t new_prot = pte_pgprot(*kpte);
+		pte_t new_pte, old_pte = *kpte;
+
+		pgprot_val(new_prot) &= ~pgprot_val(mask_clr);
+		pgprot_val(new_prot) |= pgprot_val(mask_set);
+
+		new_prot = static_protections(new_prot, address);
+
+		new_pte = pfn_pte(pfn, canon_pgprot(new_prot));
+		BUG_ON(pte_pfn(new_pte) != pte_pfn(old_pte));
 
+		set_pte_atomic(kpte, new_pte);
+	} else {
 		err = split_large_page(kpte, address);
 		if (!err)
 			goto repeat;
@@ -297,22 +305,26 @@ repeat:
  * Modules and drivers should use the set_memory_* APIs instead.
  */
 
-static int change_page_attr_addr(unsigned long address, pgprot_t prot)
+static int
+change_page_attr_addr(unsigned long address, pgprot_t mask_set,
+							pgprot_t mask_clr)
 {
 	int err = 0, kernel_map = 0;
-	unsigned long pfn = __pa(address) >> PAGE_SHIFT;
+	unsigned long pfn;
 
 #ifdef CONFIG_X86_64
 	if (address >= __START_KERNEL_map &&
 			address < __START_KERNEL_map + KERNEL_TEXT_SIZE) {
 
-		address = (unsigned long)__va(__pa(address));
+		address = (unsigned long)__va(__pa((void *)address));
 		kernel_map = 1;
 	}
 #endif
 
-	if (!kernel_map || pte_present(pfn_pte(0, prot))) {
-		err = __change_page_attr(address, pfn, prot);
+	pfn = __pa(address) >> PAGE_SHIFT;
+
+	if (!kernel_map || 1) {
+		err = __change_page_attr(address, pfn, mask_set, mask_clr);
 		if (err)
 			return err;
 	}
@@ -324,12 +336,15 @@ static int change_page_attr_addr(unsigned long address, pgprot_t prot)
 	 */
 	if (__pa(address) < KERNEL_TEXT_SIZE) {
 		unsigned long addr2;
-		pgprot_t prot2;
 
-		addr2 = __START_KERNEL_map + __pa(address);
+		addr2 = __pa(address) + __START_KERNEL_map - phys_base;
 		/* Make sure the kernel mappings stay executable */
-		prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
-		err = __change_page_attr(addr2, pfn, prot2);
+		pgprot_val(mask_clr) |= _PAGE_NX;
+		/*
+		 * Our high aliases are imprecise, so do not propagate
+		 * failures back to users:
+		 */
+		__change_page_attr(addr2, pfn, mask_set, mask_clr);
 	}
 #endif
 
@@ -339,26 +354,13 @@ static int change_page_attr_addr(unsigned long address, pgprot_t prot)
 static int __change_page_attr_set_clr(unsigned long addr, int numpages,
 				      pgprot_t mask_set, pgprot_t mask_clr)
 {
-	pgprot_t new_prot;
-	int level;
-	pte_t *pte;
-	int i, ret;
-
-	for (i = 0; i < numpages ; i++) {
-
-		pte = lookup_address(addr, &level);
-		if (!pte)
-			return -EINVAL;
-
-		new_prot = pte_pgprot(*pte);
-
-		pgprot_val(new_prot) &= ~pgprot_val(mask_clr);
-		pgprot_val(new_prot) |= pgprot_val(mask_set);
+	unsigned int i;
+	int ret;
 
-		ret = change_page_attr_addr(addr, new_prot);
+	for (i = 0; i < numpages ; i++, addr += PAGE_SIZE) {
+		ret = change_page_attr_addr(addr, mask_set, mask_clr);
 		if (ret)
 			return ret;
-		addr += PAGE_SIZE;
 	}
 
 	return 0;
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index ee40a88882f6..269e7e29ea8e 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -240,6 +240,7 @@ enum {
 	PG_LEVEL_NONE,
 	PG_LEVEL_4K,
 	PG_LEVEL_2M,
+	PG_LEVEL_1G,
 };
 
 /*
-- 
cgit v1.2.3-59-g8ed1b


From 0879750f5d75dee0546316b7b0e83fb6cd258ad7 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:09 +0100
Subject: x86: cpa cleanup the 64-bit alias math

Cleanup the address calculations, which are necessary to identify the
high/low alias mappings of the kernel on 64 bit machines. Instead of
calling __pa/__va back and forth, calculate the physical address once
and base the other calculations on it. Add understandable constants so
we can use the already available within() helper. Also add comments,
which help mere mortals to understand what this code does.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/pageattr.c | 56 +++++++++++++++++++++++++++-----------------------
 1 file changed, 30 insertions(+), 26 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 532a40bc0e7e..ec07c1873d65 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -305,49 +305,53 @@ repeat:
  * Modules and drivers should use the set_memory_* APIs instead.
  */
 
+#define HIGH_MAP_START	__START_KERNEL_map
+#define HIGH_MAP_END	(__START_KERNEL_map + KERNEL_TEXT_SIZE)
+
 static int
 change_page_attr_addr(unsigned long address, pgprot_t mask_set,
-							pgprot_t mask_clr)
+		      pgprot_t mask_clr)
 {
-	int err = 0, kernel_map = 0;
-	unsigned long pfn;
+	unsigned long phys_addr = __pa(address);
+	unsigned long pfn = phys_addr >> PAGE_SHIFT;
+	int err;
 
 #ifdef CONFIG_X86_64
-	if (address >= __START_KERNEL_map &&
-			address < __START_KERNEL_map + KERNEL_TEXT_SIZE) {
-
-		address = (unsigned long)__va(__pa((void *)address));
-		kernel_map = 1;
-	}
+	/*
+	 * If we are inside the high mapped kernel range, then we
+	 * fixup the low mapping first. __va() returns the virtual
+	 * address in the linear mapping:
+	 */
+	if (within(address, HIGH_MAP_START, HIGH_MAP_END))
+		address = (unsigned long) __va(phys_addr);
 #endif
 
-	pfn = __pa(address) >> PAGE_SHIFT;
-
-	if (!kernel_map || 1) {
-		err = __change_page_attr(address, pfn, mask_set, mask_clr);
-		if (err)
-			return err;
-	}
+	err = __change_page_attr(address, pfn, mask_set, mask_clr);
+	if (err)
+		return err;
 
 #ifdef CONFIG_X86_64
 	/*
-	 * Handle kernel mapping too which aliases part of
-	 * lowmem:
+	 * If the physical address is inside the kernel map, we need
+	 * to touch the high mapped kernel as well:
 	 */
-	if (__pa(address) < KERNEL_TEXT_SIZE) {
-		unsigned long addr2;
-
-		addr2 = __pa(address) + __START_KERNEL_map - phys_base;
+	if (within(phys_addr, 0, KERNEL_TEXT_SIZE)) {
+		/*
+		 * Calc the high mapping address. See __phys_addr()
+		 * for the non obvious details.
+		 */
+		address = phys_addr + HIGH_MAP_START - phys_base;
 		/* Make sure the kernel mappings stay executable */
 		pgprot_val(mask_clr) |= _PAGE_NX;
+
 		/*
-		 * Our high aliases are imprecise, so do not propagate
-		 * failures back to users:
+		 * Our high aliases are imprecise, because we check
+		 * everything between 0 and KERNEL_TEXT_SIZE, so do
+		 * not propagate lookup failures back to users:
 		 */
-		__change_page_attr(addr2, pfn, mask_set, mask_clr);
+		__change_page_attr(address, pfn, mask_set, mask_clr);
 	}
 #endif
-
 	return err;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 29caf2f98cdb266dffb50dfd412f951e8d46f719 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:34:09 +0100
Subject: x86: add is_f00f_bug helper to fault_32|64.c

Further towards unifying these files, add another helper
in same spirit as is_errata93.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 39 ++++++++++++++++++++++-----------------
 arch/x86/mm/fault_64.c | 24 ++++++++++++++++++++++++
 2 files changed, 46 insertions(+), 17 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index f4f8c324715f..75ae8c498d67 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -211,8 +211,6 @@ void dump_pagetable(unsigned long address)
 	printk("\n");
 }
 
-void do_invalid_op(struct pt_regs *, unsigned long);
-
 static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 {
 	unsigned index = pgd_index(address);
@@ -288,6 +286,26 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
 	return 0;
 }
 
+void do_invalid_op(struct pt_regs *, unsigned long);
+
+static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
+{
+#ifdef CONFIG_X86_F00F_BUG
+	unsigned long nr;
+	/*
+	 * Pentium F0 0F C7 C8 bug workaround.
+	 */
+	if (boot_cpu_data.f00f_bug) {
+		nr = (address - idt_descr.address) >> 3;
+
+		if (nr == 6) {
+			do_invalid_op(regs, 0);
+			return 1;
+		}
+	}
+#endif
+	return 0;
+}
 
 /*
  * Handle a fault on the vmalloc or module mapping area
@@ -570,21 +588,8 @@ bad_area_nosemaphore:
 		return;
 	}
 
-#ifdef CONFIG_X86_F00F_BUG
-	/*
-	 * Pentium F0 0F C7 C8 bug workaround.
-	 */
-	if (boot_cpu_data.f00f_bug) {
-		unsigned long nr;
-
-		nr = (address - idt_descr.address) >> 3;
-
-		if (nr == 6) {
-			do_invalid_op(regs, 0);
-			return;
-		}
-	}
-#endif
+	if (is_f00f_bug(regs, address))
+		return;
 
 no_context:
 	/* Are we prepared to handle this kernel fault?  */
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index dd26e680a431..df13487aa83a 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -256,6 +256,27 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
 	return 0;
 }
 
+void do_invalid_op(struct pt_regs *, unsigned long);
+
+static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
+{
+#ifdef CONFIG_X86_F00F_BUG
+	unsigned long nr;
+	/*
+	 * Pentium F0 0F C7 C8 bug workaround.
+	 */
+	if (boot_cpu_data.f00f_bug) {
+		nr = (address - idt_descr.address) >> 3;
+
+		if (nr == 6) {
+			do_invalid_op(regs, 0);
+			return 1;
+		}
+	}
+#endif
+	return 0;
+}
+
 static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
 				 unsigned long error_code)
 {
@@ -581,6 +602,9 @@ bad_area_nosemaphore:
 		return;
 	}
 
+	if (is_f00f_bug(regs, address))
+		return;
+
 no_context:
 	/* Are we prepared to handle this kernel fault?  */
 	if (fixup_exception(regs))
-- 
cgit v1.2.3-59-g8ed1b


From 35f3266ffbee7ff8ca0474dc8dfa3b73d5a1d1ef Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:34:09 +0100
Subject: x86: add is_errata100 helper to fault_32|64.c

Further towards unifying these files, add another helper
in same spirit as is_errata93.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 19 +++++++++++++++++++
 arch/x86/mm/fault_64.c | 25 +++++++++++++++++--------
 2 files changed, 36 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 75ae8c498d67..0bd241729aa3 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -286,6 +286,22 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
 	return 0;
 }
 
+/*
+ * Work around K8 erratum #100 K8 in compat mode occasionally jumps to illegal
+ * addresses >4GB.  We catch this in the page fault handler because these
+ * addresses are not reachable. Just detect this case and return.  Any code
+ * segment in LDT is compatibility mode.
+ */
+static int is_errata100(struct pt_regs *regs, unsigned long address)
+{
+#ifdef CONFIG_X86_64
+	if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) &&
+	    (address >> 32))
+		return 1;
+#endif
+	return 0;
+}
+
 void do_invalid_op(struct pt_regs *, unsigned long);
 
 static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
@@ -566,6 +582,9 @@ bad_area_nosemaphore:
 		if (is_prefetch(regs, address, error_code))
 			return;
 
+		if (is_errata100(regs, address))
+			return;
+
 		if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
 		    printk_ratelimit()) {
 			printk(
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index df13487aa83a..ccbb8e30d9f5 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -256,6 +256,22 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
 	return 0;
 }
 
+/*
+ * Work around K8 erratum #100 K8 in compat mode occasionally jumps to illegal
+ * addresses >4GB.  We catch this in the page fault handler because these
+ * addresses are not reachable. Just detect this case and return.  Any code
+ * segment in LDT is compatibility mode.
+ */
+static int is_errata100(struct pt_regs *regs, unsigned long address)
+{
+#ifdef CONFIG_X86_64
+	if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) &&
+	    (address >> 32))
+		return 1;
+#endif
+	return 0;
+}
+
 void do_invalid_op(struct pt_regs *, unsigned long);
 
 static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
@@ -568,14 +584,7 @@ bad_area_nosemaphore:
 		if (is_prefetch(regs, address, error_code))
 			return;
 
-		/* Work around K8 erratum #100 K8 in compat mode
-		   occasionally jumps to illegal addresses >4GB.  We
-		   catch this here in the page fault handler because
-		   these addresses are not reachable. Just detect this
-		   case and return.  Any code segment in LDT is
-		   compatibility mode. */
-		if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) &&
-		    (address >> 32))
+		if (is_errata100(regs, address))
 			return;
 
 		if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
-- 
cgit v1.2.3-59-g8ed1b


From b3279c7fd7acf807ab8395d16658514e8c222a37 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:34:10 +0100
Subject: x86: introduce show_fault_oops helper to fault_32|64.c

This will help when unifying the oops dumping code on 32/64
bit.  No functional changes.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 54 ++++++++++++++++++++++++++++----------------------
 arch/x86/mm/fault_64.c | 21 +++++++++++++-------
 2 files changed, 44 insertions(+), 31 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 0bd241729aa3..fda399758820 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -323,6 +323,35 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
 	return 0;
 }
 
+static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
+			    unsigned long address)
+{
+	if (!oops_may_print())
+		return;
+
+#ifdef CONFIG_X86_PAE
+	if (error_code & PF_INSTR) {
+		int level;
+		pte_t *pte = lookup_address(address, &level);
+
+		if (pte && pte_present(*pte) && !pte_exec(*pte))
+			printk(KERN_CRIT "kernel tried to execute "
+				"NX-protected page - exploit attempt? "
+				"(uid: %d)\n", current->uid);
+	}
+#endif
+	if (address < PAGE_SIZE)
+		printk(KERN_ALERT "BUG: unable to handle kernel NULL "
+				"pointer dereference");
+	else
+		printk(KERN_ALERT "BUG: unable to handle kernel paging"
+				" request");
+	printk(" at virtual address %08lx\n", address);
+	printk(KERN_ALERT "printing ip: %08lx ", regs->ip);
+
+	dump_pagetable(address);
+}
+
 /*
  * Handle a fault on the vmalloc or module mapping area
  *
@@ -633,30 +662,7 @@ no_context:
 
 	bust_spinlocks(1);
 
-	if (oops_may_print()) {
-
-#ifdef CONFIG_X86_PAE
-		if (error_code & PF_INSTR) {
-			int level;
-			pte_t *pte = lookup_address(address, &level);
-
-			if (pte && pte_present(*pte) && !pte_exec(*pte))
-				printk(KERN_CRIT "kernel tried to execute "
-					"NX-protected page - exploit attempt? "
-					"(uid: %d)\n", current->uid);
-		}
-#endif
-		if (address < PAGE_SIZE)
-			printk(KERN_ALERT "BUG: unable to handle kernel NULL "
-					"pointer dereference");
-		else
-			printk(KERN_ALERT "BUG: unable to handle kernel paging"
-					" request");
-		printk(" at virtual address %08lx\n", address);
-		printk(KERN_ALERT "printing ip: %08lx ", regs->ip);
-
-		dump_pagetable(address);
-	}
+	show_fault_oops(regs, error_code, address);
 
 	tsk->thread.cr2 = address;
 	tsk->thread.trap_no = 14;
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index ccbb8e30d9f5..1897704dad46 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -293,6 +293,18 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
 	return 0;
 }
 
+static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
+			    unsigned long address)
+{
+	if (address < PAGE_SIZE)
+		printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
+	else
+		printk(KERN_ALERT "Unable to handle kernel paging request");
+	printk(" at %016lx RIP: \n" KERN_ALERT, address);
+	printk_address(regs->ip, 1);
+	dump_pagetable(address);
+}
+
 static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
 				 unsigned long error_code)
 {
@@ -636,13 +648,8 @@ no_context:
 
 	flags = oops_begin();
 
-	if (address < PAGE_SIZE)
-		printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
-	else
-		printk(KERN_ALERT "Unable to handle kernel paging request");
-	printk(" at %016lx RIP: \n" KERN_ALERT, address);
-	printk_address(regs->ip, 1);
-	dump_pagetable(address);
+	show_fault_oops(regs, error_code, address);
+
 	tsk->thread.cr2 = address;
 	tsk->thread.trap_no = 14;
 	tsk->thread.error_code = error_code;
-- 
cgit v1.2.3-59-g8ed1b


From 19f0dda91e0dcb38c97bbfcff62b108a3bbc7907 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:34:10 +0100
Subject: x86: unify page fault oops printing

This changes the oops dumping format for page faults to
be similar between X86_32 and 64.

This is the first user of printk_address on X86_32.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 12 ++++++------
 arch/x86/mm/fault_64.c |  9 ++++++---
 2 files changed, 12 insertions(+), 9 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index fda399758820..28ea3d3ec8f8 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -340,15 +340,15 @@ static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 				"(uid: %d)\n", current->uid);
 	}
 #endif
+	printk(KERN_ALERT "BUG: unable to handle kernel ");
 	if (address < PAGE_SIZE)
-		printk(KERN_ALERT "BUG: unable to handle kernel NULL "
-				"pointer dereference");
+		printk(KERN_CONT "NULL pointer dereference");
 	else
-		printk(KERN_ALERT "BUG: unable to handle kernel paging"
-				" request");
-	printk(" at virtual address %08lx\n", address);
-	printk(KERN_ALERT "printing ip: %08lx ", regs->ip);
+		printk(KERN_CONT "paging request");
+	printk(KERN_CONT " at %08lx\n", address);
 
+	printk(KERN_ALERT "IP:");
+	printk_address(regs->ip, 1);
 	dump_pagetable(address);
 }
 
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 1897704dad46..e12c34ba4ba1 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -296,11 +296,14 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
 static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 			    unsigned long address)
 {
+	printk(KERN_ALERT "BUG: unable to handle kernel ");
 	if (address < PAGE_SIZE)
-		printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
+		printk(KERN_CONT "NULL pointer dereference");
 	else
-		printk(KERN_ALERT "Unable to handle kernel paging request");
-	printk(" at %016lx RIP: \n" KERN_ALERT, address);
+		printk(KERN_CONT "paging request");
+	printk(KERN_CONT " at %016lx\n", address);
+
+	printk(KERN_ALERT "IP:");
 	printk_address(regs->ip, 1);
 	dump_pagetable(address);
 }
-- 
cgit v1.2.3-59-g8ed1b


From bed23c67fe077b4d66cb3329263d7cfa33b3fd67 Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:34:10 +0100
Subject: x86: use reboot_type on EFI 32

This patch makes reboot_type of BOOT_EFI is used on i386 too. Because
correpsonding reboot code of i386 and x86_64 is merged.

Signed-off-by: Huang Ying <ying.huang@intel.com>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/efi.c | 2 --
 1 file changed, 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index a70fe77354b8..174b067b9d03 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -371,11 +371,9 @@ void __init efi_init(void)
 		printk(KERN_WARNING "Kernel-defined memdesc"
 		       "doesn't match the one from EFI!\n");
 
-#ifdef CONFIG_X86_64
 	/* Setup for EFI runtime service */
 	reboot_type = BOOT_EFI;
 
-#endif
 #if EFI_DEBUG
 	print_efi_memmap();
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From a3828064be4ed8e95907d3943e7af13cb709694d Mon Sep 17 00:00:00 2001
From: "Huang, Ying" <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 13:34:10 +0100
Subject: x86: fixes some bugs about EFI memory map handling

This patch fixes some bugs of EFI memory handing code.

- On x86_64, it is possible that EFI memory map can not be mapped via
  identity map, so efi_map_memmap is removed, just use early_ioremap.

- On i386, the EFI memory map mapping take effect cross paging_init,
  so it is not necessary to use efi_map_memmap.

- EFI memory map is unmapped in efi_enter_virtual_mode to avoid
  early_ioremap leak.

Signed-off-by: Huang Ying <ying.huang@intel.com>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/efi.c      |  2 ++
 arch/x86/kernel/efi_32.c   | 15 ---------------
 arch/x86/kernel/efi_64.c   |  9 ---------
 arch/x86/kernel/setup_32.c |  2 --
 arch/x86/kernel/setup_64.c |  4 +---
 5 files changed, 3 insertions(+), 29 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index 174b067b9d03..1411324a625c 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -474,6 +474,8 @@ void __init efi_enter_virtual_mode(void)
 	efi.reset_system = virt_efi_reset_system;
 	efi.set_virtual_address_map = virt_efi_set_virtual_address_map;
 	runtime_code_page_mkexec();
+	early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size);
+	memmap.map = NULL;
 }
 
 /*
diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c
index 114b896d7573..cb91f985b4a1 100644
--- a/arch/x86/kernel/efi_32.c
+++ b/arch/x86/kernel/efi_32.c
@@ -109,18 +109,3 @@ void efi_call_phys_epilog(void)
 
 	local_irq_restore(efi_rt_eflags);
 }
-
-/*
- * We need to map the EFI memory map again after paging_init().
- */
-void __init efi_map_memmap(void)
-{
-	memmap.map = NULL;
-
-	memmap.map = early_ioremap((unsigned long) memmap.phys_map,
-			(memmap.nr_map * memmap.desc_size));
-	if (memmap.map == NULL)
-		printk(KERN_ERR "Could not remap the EFI memmap!\n");
-
-	memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size);
-}
diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c
index 9f8a75594398..4b73992c1e11 100644
--- a/arch/x86/kernel/efi_64.c
+++ b/arch/x86/kernel/efi_64.c
@@ -103,15 +103,6 @@ void __init efi_call_phys_epilog(void)
 	local_irq_restore(efi_flags);
 }
 
-/*
- * We need to map the EFI memory map again after init_memory_mapping().
- */
-void __init efi_map_memmap(void)
-{
-	memmap.map = __va(memmap.phys_map);
-	memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size);
-}
-
 void __init efi_reserve_bootmem(void)
 {
 	reserve_bootmem_generic((unsigned long)memmap.phys_map,
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index c038b09b1723..9c0ef4945a58 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -808,8 +808,6 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_X86_GENERICARCH
 	generic_apic_probe();
 #endif
-	if (efi_enabled)
-		efi_map_memmap();
 
 #ifdef CONFIG_ACPI
 	/*
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 4ccad185ab7e..697533e86822 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -378,10 +378,8 @@ void __init setup_arch(char **cmdline_p)
        acpi_reserve_bootmem();
 #endif
 
-	if (efi_enabled) {
-		efi_map_memmap();
+	if (efi_enabled)
 		efi_reserve_bootmem();
-	}
 
        /*
 	* Find and reserve possible boot-time SMP configuration:
-- 
cgit v1.2.3-59-g8ed1b


From 14a62c34b134d24f7fedb8fd66028ecdcffb32c8 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 13:34:10 +0100
Subject: x86: unify ioremap

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_64.c | 301 +++++++++++++++++++++++++++++---------------------
 1 file changed, 175 insertions(+), 126 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 8a7b725ce3c7..bb732bb79b4a 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -47,10 +47,10 @@
 #include <asm/numa.h>
 
 #ifndef Dprintk
-#define Dprintk(x...)
+# define Dprintk(x...)
 #endif
 
-const struct dma_mapping_ops* dma_ops;
+const struct dma_mapping_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
 static unsigned long dma_reserve __initdata;
@@ -67,22 +67,26 @@ void show_mem(void)
 {
 	long i, total = 0, reserved = 0;
 	long shared = 0, cached = 0;
-	pg_data_t *pgdat;
 	struct page *page;
+	pg_data_t *pgdat;
 
 	printk(KERN_INFO "Mem-info:\n");
 	show_free_areas();
-	printk(KERN_INFO "Free swap:       %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
+	printk(KERN_INFO "Free swap:       %6ldkB\n",
+		nr_swap_pages << (PAGE_SHIFT-10));
 
 	for_each_online_pgdat(pgdat) {
-               for (i = 0; i < pgdat->node_spanned_pages; ++i) {
-			/* this loop can take a while with 256 GB and 4k pages
-			   so update the NMI watchdog */
-			if (unlikely(i % MAX_ORDER_NR_PAGES == 0)) {
+		for (i = 0; i < pgdat->node_spanned_pages; ++i) {
+			/*
+			 * This loop can take a while with 256 GB and
+			 * 4k pages so defer the NMI watchdog:
+			 */
+			if (unlikely(i % MAX_ORDER_NR_PAGES == 0))
 				touch_nmi_watchdog();
-			}
+
 			if (!pfn_valid(pgdat->node_start_pfn + i))
 				continue;
+
 			page = pfn_to_page(pgdat->node_start_pfn + i);
 			total++;
 			if (PageReserved(page))
@@ -91,32 +95,37 @@ void show_mem(void)
 				cached++;
 			else if (page_count(page))
 				shared += page_count(page) - 1;
-               }
+		}
 	}
-	printk(KERN_INFO "%lu pages of RAM\n", total);
-	printk(KERN_INFO "%lu reserved pages\n",reserved);
-	printk(KERN_INFO "%lu pages shared\n",shared);
-	printk(KERN_INFO "%lu pages swap cached\n",cached);
+	printk(KERN_INFO "%lu pages of RAM\n",		total);
+	printk(KERN_INFO "%lu reserved pages\n",	reserved);
+	printk(KERN_INFO "%lu pages shared\n",		shared);
+	printk(KERN_INFO "%lu pages swap cached\n",	cached);
 }
 
 int after_bootmem;
 
 static __init void *spp_getpage(void)
-{ 
+{
 	void *ptr;
+
 	if (after_bootmem)
-		ptr = (void *) get_zeroed_page(GFP_ATOMIC); 
+		ptr = (void *) get_zeroed_page(GFP_ATOMIC);
 	else
 		ptr = alloc_bootmem_pages(PAGE_SIZE);
-	if (!ptr || ((unsigned long)ptr & ~PAGE_MASK))
-		panic("set_pte_phys: cannot allocate page data %s\n", after_bootmem?"after bootmem":"");
+
+	if (!ptr || ((unsigned long)ptr & ~PAGE_MASK)) {
+		panic("set_pte_phys: cannot allocate page data %s\n",
+			after_bootmem ? "after bootmem" : "");
+	}
 
 	Dprintk("spp_getpage %p\n", ptr);
+
 	return ptr;
-} 
+}
 
-static __init void set_pte_phys(unsigned long vaddr,
-			 unsigned long phys, pgprot_t prot)
+static __init void
+set_pte_phys(unsigned long vaddr, unsigned long phys, pgprot_t prot)
 {
 	pgd_t *pgd;
 	pud_t *pud;
@@ -132,10 +141,11 @@ static __init void set_pte_phys(unsigned long vaddr,
 	}
 	pud = pud_offset(pgd, vaddr);
 	if (pud_none(*pud)) {
-		pmd = (pmd_t *) spp_getpage(); 
+		pmd = (pmd_t *) spp_getpage();
 		set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | _PAGE_USER));
 		if (pmd != pmd_offset(pud, 0)) {
-			printk("PAGETABLE BUG #01! %p <-> %p\n", pmd, pmd_offset(pud,0));
+			printk("PAGETABLE BUG #01! %p <-> %p\n",
+				pmd, pmd_offset(pud, 0));
 			return;
 		}
 	}
@@ -164,8 +174,8 @@ static __init void set_pte_phys(unsigned long vaddr,
 }
 
 /* NOTE: this is meant to be run only at boot */
-void __init 
-__set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t prot)
+void __init
+__set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t prot)
 {
 	unsigned long address = __fix_to_virt(idx);
 
@@ -180,18 +190,19 @@ static unsigned long __initdata table_start;
 static unsigned long __meminitdata table_end;
 
 static __meminit void *alloc_low_page(unsigned long *phys)
-{ 
+{
 	unsigned long pfn = table_end++;
 	void *adr;
 
 	if (after_bootmem) {
 		adr = (void *)get_zeroed_page(GFP_ATOMIC);
 		*phys = __pa(adr);
+
 		return adr;
 	}
 
-	if (pfn >= end_pfn) 
-		panic("alloc_low_page: ran out of memory"); 
+	if (pfn >= end_pfn)
+		panic("alloc_low_page: ran out of memory");
 
 	adr = early_ioremap(pfn * PAGE_SIZE, PAGE_SIZE);
 	memset(adr, 0, PAGE_SIZE);
@@ -200,44 +211,49 @@ static __meminit void *alloc_low_page(unsigned long *phys)
 }
 
 static __meminit void unmap_low_page(void *adr)
-{ 
-
+{
 	if (after_bootmem)
 		return;
 
 	early_iounmap(adr, PAGE_SIZE);
-} 
+}
 
 /* Must run before zap_low_mappings */
 __meminit void *early_ioremap(unsigned long addr, unsigned long size)
 {
-	unsigned long vaddr;
 	pmd_t *pmd, *last_pmd;
+	unsigned long vaddr;
 	int i, pmds;
 
 	pmds = ((addr & ~PMD_MASK) + size + ~PMD_MASK) / PMD_SIZE;
 	vaddr = __START_KERNEL_map;
 	pmd = level2_kernel_pgt;
 	last_pmd = level2_kernel_pgt + PTRS_PER_PMD - 1;
+
 	for (; pmd <= last_pmd; pmd++, vaddr += PMD_SIZE) {
 		for (i = 0; i < pmds; i++) {
 			if (pmd_present(pmd[i]))
-				goto next;
+				goto continue_outer_loop;
 		}
 		vaddr += addr & ~PMD_MASK;
 		addr &= PMD_MASK;
+
 		for (i = 0; i < pmds; i++, addr += PMD_SIZE)
 			set_pmd(pmd+i, __pmd(addr | __PAGE_KERNEL_LARGE_EXEC));
 		__flush_tlb_all();
+
 		return (void *)vaddr;
-	next:
+continue_outer_loop:
 		;
 	}
 	printk("early_ioremap(0x%lx, %lu) failed\n", addr, size);
+
 	return NULL;
 }
 
-/* To avoid virtual aliases later */
+/*
+ * To avoid virtual aliases later:
+ */
 __meminit void early_iounmap(void *addr, unsigned long size)
 {
 	unsigned long vaddr;
@@ -247,8 +263,10 @@ __meminit void early_iounmap(void *addr, unsigned long size)
 	vaddr = (unsigned long)addr;
 	pmds = ((vaddr & ~PMD_MASK) + size + ~PMD_MASK) / PMD_SIZE;
 	pmd = level2_kernel_pgt + pmd_index(vaddr);
+
 	for (i = 0; i < pmds; i++)
 		pmd_clear(pmd + i);
+
 	__flush_tlb_all();
 }
 
@@ -262,9 +280,10 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end)
 		pmd_t *pmd = pmd_page + pmd_index(address);
 
 		if (address >= end) {
-			if (!after_bootmem)
+			if (!after_bootmem) {
 				for (; i < PTRS_PER_PMD; i++, pmd++)
 					set_pmd(pmd, __pmd(0));
+			}
 			break;
 		}
 
@@ -280,19 +299,19 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end)
 static void __meminit
 phys_pmd_update(pud_t *pud, unsigned long address, unsigned long end)
 {
-	pmd_t *pmd = pmd_offset(pud,0);
+	pmd_t *pmd = pmd_offset(pud, 0);
 	spin_lock(&init_mm.page_table_lock);
 	phys_pmd_init(pmd, address, end);
 	spin_unlock(&init_mm.page_table_lock);
 	__flush_tlb_all();
 }
 
-static void __meminit phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end)
-{ 
+static void __meminit
+phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end)
+{
 	int i = pud_index(addr);
 
-
-	for (; i < PTRS_PER_PUD; i++, addr = (addr & PUD_MASK) + PUD_SIZE ) {
+	for (; i < PTRS_PER_PUD; i++, addr = (addr & PUD_MASK) + PUD_SIZE) {
 		unsigned long pmd_phys;
 		pud_t *pud = pud_page + pud_index(addr);
 		pmd_t *pmd;
@@ -300,10 +319,11 @@ static void __meminit phys_pud_init(pud_t *pud_page, unsigned long addr, unsigne
 		if (addr >= end)
 			break;
 
-		if (!after_bootmem && !e820_any_mapped(addr,addr+PUD_SIZE,0)) {
-			set_pud(pud, __pud(0)); 
+		if (!after_bootmem &&
+				!e820_any_mapped(addr, addr+PUD_SIZE, 0)) {
+			set_pud(pud, __pud(0));
 			continue;
-		} 
+		}
 
 		if (pud_val(*pud)) {
 			phys_pmd_update(pud, addr, end);
@@ -311,14 +331,16 @@ static void __meminit phys_pud_init(pud_t *pud_page, unsigned long addr, unsigne
 		}
 
 		pmd = alloc_low_page(&pmd_phys);
+
 		spin_lock(&init_mm.page_table_lock);
 		set_pud(pud, __pud(pmd_phys | _KERNPG_TABLE));
 		phys_pmd_init(pmd, addr, end);
 		spin_unlock(&init_mm.page_table_lock);
+
 		unmap_low_page(pmd);
 	}
 	__flush_tlb_all();
-} 
+}
 
 static void __init find_early_table_space(unsigned long end)
 {
@@ -329,11 +351,13 @@ static void __init find_early_table_space(unsigned long end)
 	tables = round_up(puds * sizeof(pud_t), PAGE_SIZE) +
 		 round_up(pmds * sizeof(pmd_t), PAGE_SIZE);
 
- 	/* RED-PEN putting page tables only on node 0 could
- 	   cause a hotspot and fill up ZONE_DMA. The page tables
- 	   need roughly 0.5KB per GB. */
- 	start = 0x8000;
- 	table_start = find_e820_area(start, end, tables);
+	/*
+	 * RED-PEN putting page tables only on node 0 could
+	 * cause a hotspot and fill up ZONE_DMA. The page tables
+	 * need roughly 0.5KB per GB.
+	 */
+	start = 0x8000;
+	table_start = find_e820_area(start, end, tables);
 	if (table_start == -1UL)
 		panic("Cannot find space for the kernel page tables");
 
@@ -345,20 +369,23 @@ static void __init find_early_table_space(unsigned long end)
 		(table_start << PAGE_SHIFT) + tables);
 }
 
-/* Setup the direct mapping of the physical memory at PAGE_OFFSET.
-   This runs before bootmem is initialized and gets pages directly from the 
-   physical memory. To access them they are temporarily mapped. */
+/*
+ * Setup the direct mapping of the physical memory at PAGE_OFFSET.
+ * This runs before bootmem is initialized and gets pages directly from
+ * the physical memory. To access them they are temporarily mapped.
+ */
 void __init_refok init_memory_mapping(unsigned long start, unsigned long end)
-{ 
-	unsigned long next; 
+{
+	unsigned long next;
 
 	Dprintk("init_memory_mapping\n");
 
-	/* 
+	/*
 	 * Find space for the kernel direct mapping tables.
-	 * Later we should allocate these tables in the local node of the memory
-	 * mapped.  Unfortunately this is done currently before the nodes are 
-	 * discovered.
+	 *
+	 * Later we should allocate these tables in the local node of the
+	 * memory mapped. Unfortunately this is done currently before the
+	 * nodes are discovered.
 	 */
 	if (!after_bootmem)
 		find_early_table_space(end);
@@ -367,8 +394,8 @@ void __init_refok init_memory_mapping(unsigned long start, unsigned long end)
 	end = (unsigned long)__va(end);
 
 	for (; start < end; start = next) {
-		unsigned long pud_phys; 
 		pgd_t *pgd = pgd_offset_k(start);
+		unsigned long pud_phys;
 		pud_t *pud;
 
 		if (after_bootmem)
@@ -377,13 +404,13 @@ void __init_refok init_memory_mapping(unsigned long start, unsigned long end)
 			pud = alloc_low_page(&pud_phys);
 
 		next = start + PGDIR_SIZE;
-		if (next > end) 
-			next = end; 
+		if (next > end)
+			next = end;
 		phys_pud_init(pud, __pa(start), __pa(next));
 		if (!after_bootmem)
 			set_pgd(pgd_offset_k(start), mk_kernel_pgd(pud_phys));
 		unmap_low_page(pud);
-	} 
+	}
 
 	if (!after_bootmem)
 		mmu_cr4_features = read_cr4();
@@ -396,6 +423,7 @@ void __init_refok init_memory_mapping(unsigned long start, unsigned long end)
 void __init paging_init(void)
 {
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
+
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 	max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
 	max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
@@ -407,39 +435,48 @@ void __init paging_init(void)
 }
 #endif
 
-/* Unmap a kernel mapping if it exists. This is useful to avoid prefetches
-   from the CPU leading to inconsistent cache lines. address and size
-   must be aligned to 2MB boundaries. 
-   Does nothing when the mapping doesn't exist. */
-void __init clear_kernel_mapping(unsigned long address, unsigned long size) 
+/*
+ * Unmap a kernel mapping if it exists. This is useful to avoid
+ * prefetches from the CPU leading to inconsistent cache lines.
+ * address and size must be aligned to 2MB boundaries.
+ * Does nothing when the mapping doesn't exist.
+ */
+void __init clear_kernel_mapping(unsigned long address, unsigned long size)
 {
 	unsigned long end = address + size;
 
 	BUG_ON(address & ~LARGE_PAGE_MASK);
-	BUG_ON(size & ~LARGE_PAGE_MASK); 
-	
-	for (; address < end; address += LARGE_PAGE_SIZE) { 
+	BUG_ON(size & ~LARGE_PAGE_MASK);
+
+	for (; address < end; address += LARGE_PAGE_SIZE) {
 		pgd_t *pgd = pgd_offset_k(address);
 		pud_t *pud;
 		pmd_t *pmd;
+
 		if (pgd_none(*pgd))
 			continue;
+
 		pud = pud_offset(pgd, address);
 		if (pud_none(*pud))
-			continue; 
+			continue;
+
 		pmd = pmd_offset(pud, address);
 		if (!pmd || pmd_none(*pmd))
-			continue; 
-		if (0 == (pmd_val(*pmd) & _PAGE_PSE)) { 
-			/* Could handle this, but it should not happen currently. */
-			printk(KERN_ERR 
-	       "clear_kernel_mapping: mapping has been split. will leak memory\n"); 
-			pmd_ERROR(*pmd); 
+			continue;
+
+		if (!(pmd_val(*pmd) & _PAGE_PSE)) {
+			/*
+			 * Could handle this, but it should not happen
+			 * currently:
+			 */
+			printk(KERN_ERR "clear_kernel_mapping: "
+				"mapping has been split. will leak memory\n");
+			pmd_ERROR(*pmd);
 		}
-		set_pmd(pmd, __pmd(0)); 		
+		set_pmd(pmd, __pmd(0));
 	}
 	__flush_tlb_all();
-} 
+}
 
 /*
  * Memory hotplug specific functions
@@ -466,16 +503,13 @@ int arch_add_memory(int nid, u64 start, u64 size)
 	unsigned long nr_pages = size >> PAGE_SHIFT;
 	int ret;
 
-	init_memory_mapping(start, (start + size -1));
+	init_memory_mapping(start, start + size-1);
 
 	ret = __add_pages(zone, start_pfn, nr_pages);
 	if (ret)
-		goto error;
+		printk("%s: Problem encountered in __add_pages!\n", __func__);
 
 	return ret;
-error:
-	printk("%s: Problem encountered in __add_pages!\n", __func__);
-	return ret;
 }
 EXPORT_SYMBOL_GPL(arch_add_memory);
 
@@ -489,8 +523,8 @@ EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
 
 #endif /* CONFIG_MEMORY_HOTPLUG */
 
-static struct kcore_list kcore_mem, kcore_vmalloc, kcore_kernel, kcore_modules,
-			 kcore_vsyscall;
+static struct kcore_list kcore_mem, kcore_vmalloc, kcore_kernel,
+			 kcore_modules, kcore_vsyscall;
 
 void __init mem_init(void)
 {
@@ -518,7 +552,6 @@ void __init mem_init(void)
 #endif
 	reservedpages = end_pfn - totalram_pages -
 					absent_pages_in_range(0, end_pfn);
-
 	after_bootmem = 1;
 
 	codesize =  (unsigned long) &_etext - (unsigned long) &_text;
@@ -526,15 +559,16 @@ void __init mem_init(void)
 	initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;
 
 	/* Register memory areas for /proc/kcore */
-	kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT); 
-	kclist_add(&kcore_vmalloc, (void *)VMALLOC_START, 
+	kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT);
+	kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
 		   VMALLOC_END-VMALLOC_START);
 	kclist_add(&kcore_kernel, &_stext, _end - _stext);
 	kclist_add(&kcore_modules, (void *)MODULES_VADDR, MODULES_LEN);
-	kclist_add(&kcore_vsyscall, (void *)VSYSCALL_START, 
+	kclist_add(&kcore_vsyscall, (void *)VSYSCALL_START,
 				 VSYSCALL_END - VSYSCALL_START);
 
-	printk("Memory: %luk/%luk available (%ldk kernel code, %ldk reserved, %ldk data, %ldk init)\n",
+	printk("Memory: %luk/%luk available (%ldk kernel code, "
+				"%ldk reserved, %ldk data, %ldk init)\n",
 		(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
 		end_pfn << (PAGE_SHIFT-10),
 		codesize >> 10,
@@ -561,6 +595,7 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 	set_memory_np(begin, (end - begin) >> PAGE_SHIFT);
 #else
 	printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
+
 	for (addr = begin; addr < end; addr += PAGE_SIZE) {
 		ClearPageReserved(virt_to_page(addr));
 		init_page_count(virt_to_page(addr));
@@ -596,7 +631,7 @@ void mark_rodata_ro(void)
 #ifdef CONFIG_KPROBES
 	start = (unsigned long)__start_rodata;
 #endif
-	
+
 	end = (unsigned long)__end_rodata;
 	start = (start + PAGE_SIZE - 1) & PAGE_MASK;
 	end &= PAGE_MASK;
@@ -627,17 +662,21 @@ void free_initrd_mem(unsigned long start, unsigned long end)
 }
 #endif
 
-void __init reserve_bootmem_generic(unsigned long phys, unsigned len) 
-{ 
+void __init reserve_bootmem_generic(unsigned long phys, unsigned len)
+{
 #ifdef CONFIG_NUMA
 	int nid = phys_to_nid(phys);
 #endif
 	unsigned long pfn = phys >> PAGE_SHIFT;
+
 	if (pfn >= end_pfn) {
-		/* This can happen with kdump kernels when accessing firmware
-		   tables. */
+		/*
+		 * This can happen with kdump kernels when accessing
+		 * firmware tables:
+		 */
 		if (pfn < end_pfn_map)
 			return;
+
 		printk(KERN_ERR "reserve_bootmem: illegal reserve %lx %u\n",
 				phys, len);
 		return;
@@ -645,9 +684,9 @@ void __init reserve_bootmem_generic(unsigned long phys, unsigned len)
 
 	/* Should check here against the e820 map to avoid double free */
 #ifdef CONFIG_NUMA
-  	reserve_bootmem_node(NODE_DATA(nid), phys, len);
-#else       		
-	reserve_bootmem(phys, len);    
+	reserve_bootmem_node(NODE_DATA(nid), phys, len);
+#else
+	reserve_bootmem(phys, len);
 #endif
 	if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) {
 		dma_reserve += len / PAGE_SIZE;
@@ -655,46 +694,49 @@ void __init reserve_bootmem_generic(unsigned long phys, unsigned len)
 	}
 }
 
-int kern_addr_valid(unsigned long addr) 
-{ 
+int kern_addr_valid(unsigned long addr)
+{
 	unsigned long above = ((long)addr) >> __VIRTUAL_MASK_SHIFT;
-       pgd_t *pgd;
-       pud_t *pud;
-       pmd_t *pmd;
-       pte_t *pte;
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte;
 
 	if (above != 0 && above != -1UL)
-		return 0; 
-	
+		return 0;
+
 	pgd = pgd_offset_k(addr);
 	if (pgd_none(*pgd))
 		return 0;
 
 	pud = pud_offset(pgd, addr);
 	if (pud_none(*pud))
-		return 0; 
+		return 0;
 
 	pmd = pmd_offset(pud, addr);
 	if (pmd_none(*pmd))
 		return 0;
+
 	if (pmd_large(*pmd))
 		return pfn_valid(pmd_pfn(*pmd));
 
 	pte = pte_offset_kernel(pmd, addr);
 	if (pte_none(*pte))
 		return 0;
+
 	return pfn_valid(pte_pfn(*pte));
 }
 
-/* A pseudo VMA to allow ptrace access for the vsyscall page.  This only
-   covers the 64bit vsyscall page now. 32bit has a real VMA now and does
-   not need special handling anymore. */
-
+/*
+ * A pseudo VMA to allow ptrace access for the vsyscall page.  This only
+ * covers the 64bit vsyscall page now. 32bit has a real VMA now and does
+ * not need special handling anymore:
+ */
 static struct vm_area_struct gate_vma = {
-	.vm_start = VSYSCALL_START,
-	.vm_end = VSYSCALL_START + (VSYSCALL_MAPPED_PAGES << PAGE_SHIFT),
-	.vm_page_prot = PAGE_READONLY_EXEC,
-	.vm_flags = VM_READ | VM_EXEC
+	.vm_start	= VSYSCALL_START,
+	.vm_end		= VSYSCALL_START + (VSYSCALL_MAPPED_PAGES * PAGE_SIZE),
+	.vm_page_prot	= PAGE_READONLY_EXEC,
+	.vm_flags	= VM_READ | VM_EXEC
 };
 
 struct vm_area_struct *get_gate_vma(struct task_struct *tsk)
@@ -709,14 +751,17 @@ struct vm_area_struct *get_gate_vma(struct task_struct *tsk)
 int in_gate_area(struct task_struct *task, unsigned long addr)
 {
 	struct vm_area_struct *vma = get_gate_vma(task);
+
 	if (!vma)
 		return 0;
+
 	return (addr >= vma->vm_start) && (addr < vma->vm_end);
 }
 
-/* Use this when you have no reliable task/vma, typically from interrupt
- * context.  It is less reliable than using the task's vma and may give
- * false positives.
+/*
+ * Use this when you have no reliable task/vma, typically from interrupt
+ * context. It is less reliable than using the task's vma and may give
+ * false positives:
  */
 int in_gate_area_no_task(unsigned long addr)
 {
@@ -736,8 +781,8 @@ const char *arch_vma_name(struct vm_area_struct *vma)
 /*
  * Initialise the sparsemem vmemmap using huge-pages at the PMD level.
  */
-int __meminit vmemmap_populate(struct page *start_page,
-						unsigned long size, int node)
+int __meminit
+vmemmap_populate(struct page *start_page, unsigned long size, int node)
 {
 	unsigned long addr = (unsigned long)start_page;
 	unsigned long end = (unsigned long)(start_page + size);
@@ -752,6 +797,7 @@ int __meminit vmemmap_populate(struct page *start_page,
 		pgd = vmemmap_pgd_populate(addr, node);
 		if (!pgd)
 			return -ENOMEM;
+
 		pud = vmemmap_pud_populate(pgd, addr, node);
 		if (!pud)
 			return -ENOMEM;
@@ -759,19 +805,22 @@ int __meminit vmemmap_populate(struct page *start_page,
 		pmd = pmd_offset(pud, addr);
 		if (pmd_none(*pmd)) {
 			pte_t entry;
-			void *p = vmemmap_alloc_block(PMD_SIZE, node);
+			void *p;
+
+			p = vmemmap_alloc_block(PMD_SIZE, node);
 			if (!p)
 				return -ENOMEM;
 
-			entry = pfn_pte(__pa(p) >> PAGE_SHIFT, PAGE_KERNEL_LARGE);
+			entry = pfn_pte(__pa(p) >> PAGE_SHIFT,
+							PAGE_KERNEL_LARGE);
 			set_pmd(pmd, __pmd(pte_val(entry)));
 
 			printk(KERN_DEBUG " [%lx-%lx] PMD ->%p on node %d\n",
 				addr, addr + PMD_SIZE - 1, p, node);
-		} else
+		} else {
 			vmemmap_verify((pte_t *)pmd, node, addr, next);
+		}
 	}
-
 	return 0;
 }
 #endif
-- 
cgit v1.2.3-59-g8ed1b


From 10f22dde556d1ed41d55355d1fb8ad495f9810c8 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:10 +0100
Subject: x86: arch/x86/mm/init_64.c printk fixes

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_64.c | 30 +++++++++++++-----------------
 1 file changed, 13 insertions(+), 17 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index bb732bb79b4a..a95272644591 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -46,10 +46,6 @@
 #include <asm/kdebug.h>
 #include <asm/numa.h>
 
-#ifndef Dprintk
-# define Dprintk(x...)
-#endif
-
 const struct dma_mapping_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
@@ -119,7 +115,7 @@ static __init void *spp_getpage(void)
 			after_bootmem ? "after bootmem" : "");
 	}
 
-	Dprintk("spp_getpage %p\n", ptr);
+	pr_debug("spp_getpage %p\n", ptr);
 
 	return ptr;
 }
@@ -132,11 +128,12 @@ set_pte_phys(unsigned long vaddr, unsigned long phys, pgprot_t prot)
 	pmd_t *pmd;
 	pte_t *pte, new_pte;
 
-	Dprintk("set_pte_phys %lx to %lx\n", vaddr, phys);
+	pr_debug("set_pte_phys %lx to %lx\n", vaddr, phys);
 
 	pgd = pgd_offset_k(vaddr);
 	if (pgd_none(*pgd)) {
-		printk("PGD FIXMAP MISSING, it should be setup in head.S!\n");
+		printk(KERN_ERR
+			"PGD FIXMAP MISSING, it should be setup in head.S!\n");
 		return;
 	}
 	pud = pud_offset(pgd, vaddr);
@@ -144,7 +141,7 @@ set_pte_phys(unsigned long vaddr, unsigned long phys, pgprot_t prot)
 		pmd = (pmd_t *) spp_getpage();
 		set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | _PAGE_USER));
 		if (pmd != pmd_offset(pud, 0)) {
-			printk("PAGETABLE BUG #01! %p <-> %p\n",
+			printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n",
 				pmd, pmd_offset(pud, 0));
 			return;
 		}
@@ -154,7 +151,7 @@ set_pte_phys(unsigned long vaddr, unsigned long phys, pgprot_t prot)
 		pte = (pte_t *) spp_getpage();
 		set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE | _PAGE_USER));
 		if (pte != pte_offset_kernel(pmd, 0)) {
-			printk("PAGETABLE BUG #02!\n");
+			printk(KERN_ERR "PAGETABLE BUG #02!\n");
 			return;
 		}
 	}
@@ -180,7 +177,7 @@ __set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t prot)
 	unsigned long address = __fix_to_virt(idx);
 
 	if (idx >= __end_of_fixed_addresses) {
-		printk("Invalid __set_fixmap\n");
+		printk(KERN_ERR "Invalid __set_fixmap\n");
 		return;
 	}
 	set_pte_phys(address, phys, prot);
@@ -246,7 +243,7 @@ __meminit void *early_ioremap(unsigned long addr, unsigned long size)
 continue_outer_loop:
 		;
 	}
-	printk("early_ioremap(0x%lx, %lu) failed\n", addr, size);
+	printk(KERN_ERR "early_ioremap(0x%lx, %lu) failed\n", addr, size);
 
 	return NULL;
 }
@@ -378,7 +375,7 @@ void __init_refok init_memory_mapping(unsigned long start, unsigned long end)
 {
 	unsigned long next;
 
-	Dprintk("init_memory_mapping\n");
+	pr_debug("init_memory_mapping\n");
 
 	/*
 	 * Find space for the kernel direct mapping tables.
@@ -506,8 +503,7 @@ int arch_add_memory(int nid, u64 start, u64 size)
 	init_memory_mapping(start, start + size-1);
 
 	ret = __add_pages(zone, start_pfn, nr_pages);
-	if (ret)
-		printk("%s: Problem encountered in __add_pages!\n", __func__);
+	WARN_ON(1);
 
 	return ret;
 }
@@ -567,7 +563,7 @@ void __init mem_init(void)
 	kclist_add(&kcore_vsyscall, (void *)VSYSCALL_START,
 				 VSYSCALL_END - VSYSCALL_START);
 
-	printk("Memory: %luk/%luk available (%ldk kernel code, "
+	printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
 				"%ldk reserved, %ldk data, %ldk init)\n",
 		(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
 		end_pfn << (PAGE_SHIFT-10),
@@ -646,10 +642,10 @@ void mark_rodata_ro(void)
 	rodata_test();
 
 #ifdef CONFIG_CPA_DEBUG
-	printk("Testing CPA: undo %lx-%lx\n", start, end);
+	printk(KERN_INFO "Testing CPA: undo %lx-%lx\n", start, end);
 	set_memory_rw(start, (end-start) >> PAGE_SHIFT);
 
-	printk("Testing CPA: again\n");
+	printk(KERN_INFO "Testing CPA: again\n");
 	set_memory_ro(start, (end-start) >> PAGE_SHIFT);
 #endif
 }
-- 
cgit v1.2.3-59-g8ed1b


From 8550eb99821b3f78cddfd19964f30e8bc4e429e0 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:10 +0100
Subject: x86: arch/x86/mm/init_32.c cleanup

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_32.c     | 240 +++++++++++++++++++++++-----------------------
 include/asm-x86/bugs.h    |   3 +-
 include/asm-x86/numa_32.h |  14 ++-
 3 files changed, 137 insertions(+), 120 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 8ed5c189d7aa..c6975fc6944a 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -39,6 +39,7 @@
 #include <asm/fixmap.h>
 #include <asm/e820.h>
 #include <asm/apic.h>
+#include <asm/bugs.h>
 #include <asm/tlb.h>
 #include <asm/tlbflush.h>
 #include <asm/pgalloc.h>
@@ -50,7 +51,7 @@ unsigned int __VMALLOC_RESERVE = 128 << 20;
 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 unsigned long highstart_pfn, highend_pfn;
 
-static int noinline do_test_wp_bit(void);
+static noinline int do_test_wp_bit(void);
 
 /*
  * Creates a middle page table and puts a pointer to it in the
@@ -61,7 +62,7 @@ static pmd_t * __init one_md_table_init(pgd_t *pgd)
 {
 	pud_t *pud;
 	pmd_t *pmd_table;
-		
+
 #ifdef CONFIG_X86_PAE
 	if (!(pgd_val(*pgd) & _PAGE_PRESENT)) {
 		pmd_table = (pmd_t *) alloc_bootmem_low_pages(PAGE_SIZE);
@@ -69,18 +70,18 @@ static pmd_t * __init one_md_table_init(pgd_t *pgd)
 		paravirt_alloc_pd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT);
 		set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
 		pud = pud_offset(pgd, 0);
-		if (pmd_table != pmd_offset(pud, 0))
-			BUG();
+		BUG_ON(pmd_table != pmd_offset(pud, 0));
 	}
 #endif
 	pud = pud_offset(pgd, 0);
 	pmd_table = pmd_offset(pud, 0);
+
 	return pmd_table;
 }
 
 /*
  * Create a page table and place a pointer to it in a middle page
- * directory entry.
+ * directory entry:
  */
 static pte_t * __init one_page_table_init(pmd_t *pmd)
 {
@@ -90,9 +91,10 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
 #ifdef CONFIG_DEBUG_PAGEALLOC
 		page_table = (pte_t *) alloc_bootmem_pages(PAGE_SIZE);
 #endif
-		if (!page_table)
+		if (!page_table) {
 			page_table =
 				(pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+		}
 
 		paravirt_alloc_pt(&init_mm, __pa(page_table) >> PAGE_SHIFT);
 		set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
@@ -103,22 +105,21 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
 }
 
 /*
- * This function initializes a certain range of kernel virtual memory 
+ * This function initializes a certain range of kernel virtual memory
  * with new bootmem page tables, everywhere page tables are missing in
  * the given range.
- */
-
-/*
- * NOTE: The pagetables are allocated contiguous on the physical space 
- * so we can cache the place of the first one and move around without 
+ *
+ * NOTE: The pagetables are allocated contiguous on the physical space
+ * so we can cache the place of the first one and move around without
  * checking the pgd every time.
  */
-static void __init page_table_range_init (unsigned long start, unsigned long end, pgd_t *pgd_base)
+static void __init
+page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
 {
-	pgd_t *pgd;
-	pmd_t *pmd;
 	int pgd_idx, pmd_idx;
 	unsigned long vaddr;
+	pgd_t *pgd;
+	pmd_t *pmd;
 
 	vaddr = start;
 	pgd_idx = pgd_index(vaddr);
@@ -128,7 +129,8 @@ static void __init page_table_range_init (unsigned long start, unsigned long end
 	for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) {
 		pmd = one_md_table_init(pgd);
 		pmd = pmd + pmd_index(vaddr);
-		for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end); pmd++, pmd_idx++) {
+		for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);
+							pmd++, pmd_idx++) {
 			one_page_table_init(pmd);
 
 			vaddr += PMD_SIZE;
@@ -145,17 +147,17 @@ static inline int is_kernel_text(unsigned long addr)
 }
 
 /*
- * This maps the physical memory to kernel virtual address space, a total 
- * of max_low_pfn pages, by creating page tables starting from address 
- * PAGE_OFFSET.
+ * This maps the physical memory to kernel virtual address space, a total
+ * of max_low_pfn pages, by creating page tables starting from address
+ * PAGE_OFFSET:
  */
 static void __init kernel_physical_mapping_init(pgd_t *pgd_base)
 {
+	int pgd_idx, pmd_idx, pte_ofs;
 	unsigned long pfn;
 	pgd_t *pgd;
 	pmd_t *pmd;
 	pte_t *pte;
-	int pgd_idx, pmd_idx, pte_ofs;
 
 	pgd_idx = pgd_index(PAGE_OFFSET);
 	pgd = pgd_base + pgd_idx;
@@ -165,40 +167,43 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base)
 		pmd = one_md_table_init(pgd);
 		if (pfn >= max_low_pfn)
 			continue;
+
 		for (pmd_idx = 0;
 		     pmd_idx < PTRS_PER_PMD && pfn < max_low_pfn;
 		     pmd++, pmd_idx++) {
-			unsigned int address = pfn * PAGE_SIZE + PAGE_OFFSET;
+			unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET;
 
-			/* Map with big pages if possible, otherwise
-			   create normal page tables. */
+			/*
+			 * Map with big pages if possible, otherwise
+			 * create normal page tables:
+			 */
 			if (cpu_has_pse) {
-				unsigned int address2;
+				unsigned int addr2;
 				pgprot_t prot = PAGE_KERNEL_LARGE;
 
-				address2 = (pfn + PTRS_PER_PTE - 1) * PAGE_SIZE +
+				addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE +
 					PAGE_OFFSET + PAGE_SIZE-1;
 
-				if (is_kernel_text(address) ||
-				    is_kernel_text(address2))
+				if (is_kernel_text(addr) ||
+				    is_kernel_text(addr2))
 					prot = PAGE_KERNEL_LARGE_EXEC;
 
 				set_pmd(pmd, pfn_pmd(pfn, prot));
 
 				pfn += PTRS_PER_PTE;
-			} else {
-				pte = one_page_table_init(pmd);
+				continue;
+			}
+			pte = one_page_table_init(pmd);
 
-				for (pte_ofs = 0;
-				     pte_ofs < PTRS_PER_PTE && pfn < max_low_pfn;
-				     pte++, pfn++, pte_ofs++, address += PAGE_SIZE) {
-					pgprot_t prot = PAGE_KERNEL;
+			for (pte_ofs = 0;
+			     pte_ofs < PTRS_PER_PTE && pfn < max_low_pfn;
+			     pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) {
+				pgprot_t prot = PAGE_KERNEL;
 
-					if (is_kernel_text(address))
-						prot = PAGE_KERNEL_EXEC;
+				if (is_kernel_text(addr))
+					prot = PAGE_KERNEL_EXEC;
 
-					set_pte(pte, pfn_pte(pfn, prot));
-				}
+				set_pte(pte, pfn_pte(pfn, prot));
 			}
 		}
 	}
@@ -215,14 +220,19 @@ static inline int page_kills_ppro(unsigned long pagenr)
 pte_t *kmap_pte;
 pgprot_t kmap_prot;
 
-#define kmap_get_fixmap_pte(vaddr)					\
-	pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), vaddr), (vaddr)), (vaddr))
+static inline pte_t *kmap_get_fixmap_pte(unsigned long vaddr)
+{
+	return pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr),
+			vaddr), vaddr), vaddr);
+}
 
 static void __init kmap_init(void)
 {
 	unsigned long kmap_vstart;
 
-	/* cache the first kmap pte */
+	/*
+	 * Cache the first kmap pte:
+	 */
 	kmap_vstart = __fix_to_virt(FIX_KMAP_BEGIN);
 	kmap_pte = kmap_get_fixmap_pte(kmap_vstart);
 
@@ -231,11 +241,11 @@ static void __init kmap_init(void)
 
 static void __init permanent_kmaps_init(pgd_t *pgd_base)
 {
+	unsigned long vaddr;
 	pgd_t *pgd;
 	pud_t *pud;
 	pmd_t *pmd;
 	pte_t *pte;
-	unsigned long vaddr;
 
 	vaddr = PKMAP_BASE;
 	page_table_range_init(vaddr, vaddr + PAGE_SIZE*LAST_PKMAP, pgd_base);
@@ -244,7 +254,7 @@ static void __init permanent_kmaps_init(pgd_t *pgd_base)
 	pud = pud_offset(pgd, vaddr);
 	pmd = pmd_offset(pud, vaddr);
 	pte = pte_offset_kernel(pmd, vaddr);
-	pkmap_page_table = pte;	
+	pkmap_page_table = pte;
 }
 
 static void __meminit free_new_highpage(struct page *page)
@@ -263,7 +273,8 @@ void __init add_one_highpage_init(struct page *page, int pfn, int bad_ppro)
 		SetPageReserved(page);
 }
 
-static int __meminit add_one_highpage_hotplug(struct page *page, unsigned long pfn)
+static int __meminit
+add_one_highpage_hotplug(struct page *page, unsigned long pfn)
 {
 	free_new_highpage(page);
 	totalram_pages++;
@@ -271,6 +282,7 @@ static int __meminit add_one_highpage_hotplug(struct page *page, unsigned long p
 	max_mapnr = max(pfn, max_mapnr);
 #endif
 	num_physpages++;
+
 	return 0;
 }
 
@@ -278,7 +290,7 @@ static int __meminit add_one_highpage_hotplug(struct page *page, unsigned long p
  * Not currently handling the NUMA case.
  * Assuming single node and all memory that
  * has been added dynamically that would be
- * onlined here is in HIGHMEM
+ * onlined here is in HIGHMEM.
  */
 void __meminit online_page(struct page *page)
 {
@@ -286,13 +298,11 @@ void __meminit online_page(struct page *page)
 	add_one_highpage_hotplug(page, page_to_pfn(page));
 }
 
-
-#ifdef CONFIG_NUMA
-extern void set_highmem_pages_init(int);
-#else
+#ifndef CONFIG_NUMA
 static void __init set_highmem_pages_init(int bad_ppro)
 {
 	int pfn;
+
 	for (pfn = highstart_pfn; pfn < highend_pfn; pfn++) {
 		/*
 		 * Holes under sparsemem might not have no mem_map[]:
@@ -302,23 +312,18 @@ static void __init set_highmem_pages_init(int bad_ppro)
 	}
 	totalram_pages += totalhigh_pages;
 }
-#endif /* CONFIG_FLATMEM */
+#endif /* !CONFIG_NUMA */
 
 #else
-#define kmap_init() do { } while (0)
-#define permanent_kmaps_init(pgd_base) do { } while (0)
-#define set_highmem_pages_init(bad_ppro) do { } while (0)
+# define kmap_init()				do { } while (0)
+# define permanent_kmaps_init(pgd_base)		do { } while (0)
+# define set_highmem_pages_init(bad_ppro)	do { } while (0)
 #endif /* CONFIG_HIGHMEM */
 
 pteval_t __PAGE_KERNEL = _PAGE_KERNEL;
 EXPORT_SYMBOL(__PAGE_KERNEL);
-pteval_t __PAGE_KERNEL_EXEC = _PAGE_KERNEL_EXEC;
 
-#ifdef CONFIG_NUMA
-extern void __init remap_numa_kva(void);
-#else
-#define remap_numa_kva() do {} while (0)
-#endif
+pteval_t __PAGE_KERNEL_EXEC = _PAGE_KERNEL_EXEC;
 
 void __init native_pagetable_setup_start(pgd_t *base)
 {
@@ -382,10 +387,10 @@ void __init native_pagetable_setup_done(pgd_t *base)
  * be partially populated, and so it avoids stomping on any existing
  * mappings.
  */
-static void __init pagetable_init (void)
+static void __init pagetable_init(void)
 {
-	unsigned long vaddr, end;
 	pgd_t *pgd_base = swapper_pg_dir;
+	unsigned long vaddr, end;
 
 	paravirt_pagetable_setup_start(pgd_base);
 
@@ -424,7 +429,7 @@ static void __init pagetable_init (void)
  * driver might have split up a kernel 4MB mapping.
  */
 char __nosavedata swsusp_pg_dir[PAGE_SIZE]
-	__attribute__ ((aligned (PAGE_SIZE)));
+	__attribute__ ((aligned(PAGE_SIZE)));
 
 static inline void save_pg_dir(void)
 {
@@ -436,7 +441,7 @@ static inline void save_pg_dir(void)
 }
 #endif
 
-void zap_low_mappings (void)
+void zap_low_mappings(void)
 {
 	int i;
 
@@ -448,23 +453,24 @@ void zap_low_mappings (void)
 	 * Note that "pgd_clear()" doesn't do it for
 	 * us, because pgd_clear() is a no-op on i386.
 	 */
-	for (i = 0; i < USER_PTRS_PER_PGD; i++)
+	for (i = 0; i < USER_PTRS_PER_PGD; i++) {
 #ifdef CONFIG_X86_PAE
 		set_pgd(swapper_pg_dir+i, __pgd(1 + __pa(empty_zero_page)));
 #else
 		set_pgd(swapper_pg_dir+i, __pgd(0));
 #endif
+	}
 	flush_tlb_all();
 }
 
-int nx_enabled = 0;
+int nx_enabled;
 
 pteval_t __supported_pte_mask __read_mostly = ~_PAGE_NX;
 EXPORT_SYMBOL_GPL(__supported_pte_mask);
 
 #ifdef CONFIG_X86_PAE
 
-static int disable_nx __initdata = 0;
+static int disable_nx __initdata;
 
 /*
  * noexec = on|off
@@ -481,11 +487,14 @@ static int __init noexec_setup(char *str)
 			__supported_pte_mask |= _PAGE_NX;
 			disable_nx = 0;
 		}
-	} else if (!strcmp(str,"off")) {
-		disable_nx = 1;
-		__supported_pte_mask &= ~_PAGE_NX;
-	} else
-		return -EINVAL;
+	} else {
+		if (!strcmp(str, "off")) {
+			disable_nx = 1;
+			__supported_pte_mask &= ~_PAGE_NX;
+		} else {
+			return -EINVAL;
+		}
+	}
 
 	return 0;
 }
@@ -497,6 +506,7 @@ static void __init set_nx(void)
 
 	if (cpu_has_pae && (cpuid_eax(0x80000000) > 0x80000001)) {
 		cpuid(0x80000001, &v[0], &v[1], &v[2], &v[3]);
+
 		if ((v[3] & (1 << 20)) && !disable_nx) {
 			rdmsr(MSR_EFER, l, h);
 			l |= EFER_NX;
@@ -506,7 +516,6 @@ static void __init set_nx(void)
 		}
 	}
 }
-
 #endif
 
 /*
@@ -523,7 +532,6 @@ void __init paging_init(void)
 	if (nx_enabled)
 		printk("NX (Execute Disable) protection: active\n");
 #endif
-
 	pagetable_init();
 
 	load_cr3(swapper_pg_dir);
@@ -547,7 +555,6 @@ void __init paging_init(void)
  * used to involve black magic jumps to work around some nasty CPU bugs,
  * but fortunately the switch to using exceptions got rid of all that.
  */
-
 static void __init test_wp_bit(void)
 {
 	printk("Checking if this processor honours the WP bit even in supervisor mode... ");
@@ -567,19 +574,16 @@ static void __init test_wp_bit(void)
 	}
 }
 
-static struct kcore_list kcore_mem, kcore_vmalloc; 
+static struct kcore_list kcore_mem, kcore_vmalloc;
 
 void __init mem_init(void)
 {
-	extern int ppro_with_ram_bug(void);
 	int codesize, reservedpages, datasize, initsize;
-	int tmp;
-	int bad_ppro;
+	int tmp, bad_ppro;
 
 #ifdef CONFIG_FLATMEM
 	BUG_ON(!mem_map);
 #endif
-	
 	bad_ppro = ppro_with_ram_bug();
 
 #ifdef CONFIG_HIGHMEM
@@ -591,14 +595,13 @@ void __init mem_init(void)
 		BUG();
 	}
 #endif
- 
 	/* this will put all low memory onto the freelists */
 	totalram_pages += free_all_bootmem();
 
 	reservedpages = 0;
 	for (tmp = 0; tmp < max_low_pfn; tmp++)
 		/*
-		 * Only count reserved RAM pages
+		 * Only count reserved RAM pages:
 		 */
 		if (page_is_ram(tmp) && PageReserved(pfn_to_page(tmp)))
 			reservedpages++;
@@ -609,11 +612,12 @@ void __init mem_init(void)
 	datasize =  (unsigned long) &_edata - (unsigned long) &_etext;
 	initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;
 
-	kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT); 
-	kclist_add(&kcore_vmalloc, (void *)VMALLOC_START, 
+	kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT);
+	kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
 		   VMALLOC_END-VMALLOC_START);
 
-	printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init, %ldk highmem)\n",
+	printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, "
+			"%dk reserved, %dk data, %dk init, %ldk highmem)\n",
 		(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
 		num_physpages << (PAGE_SHIFT-10),
 		codesize >> 10,
@@ -625,44 +629,45 @@ void __init mem_init(void)
 
 #if 1 /* double-sanity-check paranoia */
 	printk("virtual kernel memory layout:\n"
-	       "    fixmap  : 0x%08lx - 0x%08lx   (%4ld kB)\n"
+		"    fixmap  : 0x%08lx - 0x%08lx   (%4ld kB)\n"
 #ifdef CONFIG_HIGHMEM
-	       "    pkmap   : 0x%08lx - 0x%08lx   (%4ld kB)\n"
+		"    pkmap   : 0x%08lx - 0x%08lx   (%4ld kB)\n"
 #endif
-	       "    vmalloc : 0x%08lx - 0x%08lx   (%4ld MB)\n"
-	       "    lowmem  : 0x%08lx - 0x%08lx   (%4ld MB)\n"
-	       "      .init : 0x%08lx - 0x%08lx   (%4ld kB)\n"
-	       "      .data : 0x%08lx - 0x%08lx   (%4ld kB)\n"
-	       "      .text : 0x%08lx - 0x%08lx   (%4ld kB)\n",
-	       FIXADDR_START, FIXADDR_TOP,
-	       (FIXADDR_TOP - FIXADDR_START) >> 10,
+		"    vmalloc : 0x%08lx - 0x%08lx   (%4ld MB)\n"
+		"    lowmem  : 0x%08lx - 0x%08lx   (%4ld MB)\n"
+		"      .init : 0x%08lx - 0x%08lx   (%4ld kB)\n"
+		"      .data : 0x%08lx - 0x%08lx   (%4ld kB)\n"
+		"      .text : 0x%08lx - 0x%08lx   (%4ld kB)\n",
+		FIXADDR_START, FIXADDR_TOP,
+		(FIXADDR_TOP - FIXADDR_START) >> 10,
 
 #ifdef CONFIG_HIGHMEM
-	       PKMAP_BASE, PKMAP_BASE+LAST_PKMAP*PAGE_SIZE,
-	       (LAST_PKMAP*PAGE_SIZE) >> 10,
+		PKMAP_BASE, PKMAP_BASE+LAST_PKMAP*PAGE_SIZE,
+		(LAST_PKMAP*PAGE_SIZE) >> 10,
 #endif
 
-	       VMALLOC_START, VMALLOC_END,
-	       (VMALLOC_END - VMALLOC_START) >> 20,
+		VMALLOC_START, VMALLOC_END,
+		(VMALLOC_END - VMALLOC_START) >> 20,
 
-	       (unsigned long)__va(0), (unsigned long)high_memory,
-	       ((unsigned long)high_memory - (unsigned long)__va(0)) >> 20,
+		(unsigned long)__va(0), (unsigned long)high_memory,
+		((unsigned long)high_memory - (unsigned long)__va(0)) >> 20,
 
-	       (unsigned long)&__init_begin, (unsigned long)&__init_end,
-	       ((unsigned long)&__init_end - (unsigned long)&__init_begin) >> 10,
+		(unsigned long)&__init_begin, (unsigned long)&__init_end,
+		((unsigned long)&__init_end -
+		 (unsigned long)&__init_begin) >> 10,
 
-	       (unsigned long)&_etext, (unsigned long)&_edata,
-	       ((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
+		(unsigned long)&_etext, (unsigned long)&_edata,
+		((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
 
-	       (unsigned long)&_text, (unsigned long)&_etext,
-	       ((unsigned long)&_etext - (unsigned long)&_text) >> 10);
+		(unsigned long)&_text, (unsigned long)&_etext,
+		((unsigned long)&_etext - (unsigned long)&_text) >> 10);
 
 #ifdef CONFIG_HIGHMEM
-	BUG_ON(PKMAP_BASE+LAST_PKMAP*PAGE_SIZE > FIXADDR_START);
-	BUG_ON(VMALLOC_END                     > PKMAP_BASE);
+	BUG_ON(PKMAP_BASE + LAST_PKMAP*PAGE_SIZE	> FIXADDR_START);
+	BUG_ON(VMALLOC_END				> PKMAP_BASE);
 #endif
-	BUG_ON(VMALLOC_START                   > VMALLOC_END);
-	BUG_ON((unsigned long)high_memory      > VMALLOC_START);
+	BUG_ON(VMALLOC_START				> VMALLOC_END);
+	BUG_ON((unsigned long)high_memory		> VMALLOC_START);
 #endif /* double-sanity-check paranoia */
 
 #ifdef CONFIG_X86_PAE
@@ -693,45 +698,45 @@ int arch_add_memory(int nid, u64 start, u64 size)
 
 	return __add_pages(zone, start_pfn, nr_pages);
 }
-
 #endif
 
 struct kmem_cache *pmd_cache;
 
 void __init pgtable_cache_init(void)
 {
-	if (PTRS_PER_PMD > 1)
+	if (PTRS_PER_PMD > 1) {
 		pmd_cache = kmem_cache_create("pmd",
 					      PTRS_PER_PMD*sizeof(pmd_t),
 					      PTRS_PER_PMD*sizeof(pmd_t),
 					      SLAB_PANIC,
 					      pmd_ctor);
+	}
 }
 
 /*
  * This function cannot be __init, since exceptions don't work in that
  * section.  Put this after the callers, so that it cannot be inlined.
  */
-static int noinline do_test_wp_bit(void)
+static noinline int do_test_wp_bit(void)
 {
 	char tmp_reg;
 	int flag;
 
 	__asm__ __volatile__(
-		"	movb %0,%1	\n"
-		"1:	movb %1,%0	\n"
-		"	xorl %2,%2	\n"
+		"	movb %0, %1	\n"
+		"1:	movb %1, %0	\n"
+		"	xorl %2, %2	\n"
 		"2:			\n"
-		".section __ex_table,\"a\"\n"
+		".section __ex_table, \"a\"\n"
 		"	.align 4	\n"
-		"	.long 1b,2b	\n"
+		"	.long 1b, 2b	\n"
 		".previous		\n"
 		:"=m" (*(char *)fix_to_virt(FIX_WP_TEST)),
 		 "=q" (tmp_reg),
 		 "=r" (flag)
 		:"2" (1)
 		:"memory");
-	
+
 	return flag;
 }
 
@@ -824,4 +829,3 @@ void free_initrd_mem(unsigned long start, unsigned long end)
 	free_init_pages("initrd memory", start, end);
 }
 #endif
-
diff --git a/include/asm-x86/bugs.h b/include/asm-x86/bugs.h
index aac8317420af..3fcc30dc0731 100644
--- a/include/asm-x86/bugs.h
+++ b/include/asm-x86/bugs.h
@@ -1,6 +1,7 @@
 #ifndef _ASM_X86_BUGS_H
 #define _ASM_X86_BUGS_H
 
-void check_bugs(void);
+extern void check_bugs(void);
+extern int ppro_with_ram_bug(void);
 
 #endif /* _ASM_X86_BUGS_H */
diff --git a/include/asm-x86/numa_32.h b/include/asm-x86/numa_32.h
index 96fcb157db1d..03d0f7a9bf02 100644
--- a/include/asm-x86/numa_32.h
+++ b/include/asm-x86/numa_32.h
@@ -1,3 +1,15 @@
+#ifndef _ASM_X86_32_NUMA_H
+#define _ASM_X86_32_NUMA_H 1
 
-int pxm_to_nid(int pxm);
+extern int pxm_to_nid(int pxm);
 
+#ifdef CONFIG_NUMA
+extern void __init remap_numa_kva(void);
+extern void set_highmem_pages_init(int);
+#else
+static inline void remap_numa_kva(void)
+{
+}
+#endif
+
+#endif /* _ASM_X86_32_NUMA_H */
-- 
cgit v1.2.3-59-g8ed1b


From d7d119d777d7ed22c4095915e9c985a8b75bfe5f Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:34:10 +0100
Subject: x86: arch/x86/mm/init_32.c printk fixes

printk fixes. NOP in terms of functionality, but strings got
a bit larger due to the KERN_ markers that were added.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_32.c | 38 ++++++++++++++++++++++----------------
 1 file changed, 22 insertions(+), 16 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index c6975fc6944a..02d269c07b96 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -530,7 +530,7 @@ void __init paging_init(void)
 #ifdef CONFIG_X86_PAE
 	set_nx();
 	if (nx_enabled)
-		printk("NX (Execute Disable) protection: active\n");
+		printk(KERN_INFO "NX (Execute Disable) protection: active\n");
 #endif
 	pagetable_init();
 
@@ -557,7 +557,8 @@ void __init paging_init(void)
  */
 static void __init test_wp_bit(void)
 {
-	printk("Checking if this processor honours the WP bit even in supervisor mode... ");
+	printk(KERN_INFO
+  "Checking if this processor honours the WP bit even in supervisor mode...");
 
 	/* Any page-aligned address will do, the test is non-destructive */
 	__set_fixmap(FIX_WP_TEST, __pa(&swapper_pg_dir), PAGE_READONLY);
@@ -565,12 +566,13 @@ static void __init test_wp_bit(void)
 	clear_fixmap(FIX_WP_TEST);
 
 	if (!boot_cpu_data.wp_works_ok) {
-		printk("No.\n");
+		printk(KERN_CONT "No.\n");
 #ifdef CONFIG_X86_WP_WORKS_OK
-		panic("This kernel doesn't support CPU's with broken WP. Recompile it for a 386!");
+		panic(
+  "This kernel doesn't support CPU's with broken WP. Recompile it for a 386!");
 #endif
 	} else {
-		printk("Ok.\n");
+		printk(KERN_CONT "Ok.\n");
 	}
 }
 
@@ -588,10 +590,12 @@ void __init mem_init(void)
 
 #ifdef CONFIG_HIGHMEM
 	/* check that fixmap and pkmap do not overlap */
-	if (PKMAP_BASE+LAST_PKMAP*PAGE_SIZE >= FIXADDR_START) {
-		printk(KERN_ERR "fixmap and kmap areas overlap - this will crash\n");
+	if (PKMAP_BASE + LAST_PKMAP*PAGE_SIZE >= FIXADDR_START) {
+		printk(KERN_ERR
+			"fixmap and kmap areas overlap - this will crash\n");
 		printk(KERN_ERR "pkstart: %lxh pkend: %lxh fixstart %lxh\n",
-				PKMAP_BASE, PKMAP_BASE+LAST_PKMAP*PAGE_SIZE, FIXADDR_START);
+				PKMAP_BASE, PKMAP_BASE + LAST_PKMAP*PAGE_SIZE,
+				FIXADDR_START);
 		BUG();
 	}
 #endif
@@ -628,7 +632,7 @@ void __init mem_init(void)
 	       );
 
 #if 1 /* double-sanity-check paranoia */
-	printk("virtual kernel memory layout:\n"
+	printk(KERN_INFO "virtual kernel memory layout:\n"
 		"    fixmap  : 0x%08lx - 0x%08lx   (%4ld kB)\n"
 #ifdef CONFIG_HIGHMEM
 		"    pkmap   : 0x%08lx - 0x%08lx   (%4ld kB)\n"
@@ -756,13 +760,15 @@ void mark_rodata_ro(void)
 #endif
 	{
 		set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
-		printk("Write protecting the kernel text: %luk\n", size >> 10);
+		printk(KERN_INFO "Write protecting the kernel text: %luk\n",
+			size >> 10);
 
 #ifdef CONFIG_CPA_DEBUG
-		printk("Testing CPA: Reverting %lx-%lx\n", start, start+size);
+		printk(KERN_INFO "Testing CPA: Reverting %lx-%lx\n",
+			start, start+size);
 		set_pages_rw(virt_to_page(start), size>>PAGE_SHIFT);
 
-		printk("Testing CPA: write protecting again\n");
+		printk(KERN_INFO "Testing CPA: write protecting again\n");
 		set_pages_ro(virt_to_page(start), size>>PAGE_SHIFT);
 #endif
 	}
@@ -770,15 +776,15 @@ void mark_rodata_ro(void)
 	start += size;
 	size = (unsigned long)__end_rodata - start;
 	set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
-	printk("Write protecting the kernel read-only data: %luk\n",
-	       size >> 10);
+	printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n",
+		size >> 10);
 	rodata_test();
 
 #ifdef CONFIG_CPA_DEBUG
-	printk("Testing CPA: undo %lx-%lx\n", start, start + size);
+	printk(KERN_INFO "Testing CPA: undo %lx-%lx\n", start, start + size);
 	set_pages_rw(virt_to_page(start), size >> PAGE_SHIFT);
 
-	printk("Testing CPA: write protecting again\n");
+	printk(KERN_INFO "Testing CPA: write protecting again\n");
 	set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
 #endif
 }
-- 
cgit v1.2.3-59-g8ed1b


From 1156e098c5fc142ceaf091f0627109225a9db894 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:34:10 +0100
Subject: x86: unify fault_32|64.c by ifdef'd function bodies

It's about time to get on with unifying these files, elimination
of the ugly ifdefs can occur in the unified file.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 116 ++++++++++++++++++++++++++++++++++++++
 arch/x86/mm/fault_64.c | 148 ++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 263 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 28ea3d3ec8f8..7d9ecbbba745 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -173,8 +173,17 @@ static void force_sig_info_fault(int si_signo, int si_code,
 	force_sig_info(si_signo, &info, tsk);
 }
 
+#ifdef CONFIG_X86_64
+static int bad_address(void *p)
+{
+	unsigned long dummy;
+	return probe_kernel_address((unsigned long *)p, dummy);
+}
+#endif
+
 void dump_pagetable(unsigned long address)
 {
+#ifdef CONFIG_X86_32
 	__typeof__(pte_val(__pte(0))) page;
 
 	page = read_cr3();
@@ -209,8 +218,42 @@ void dump_pagetable(unsigned long address)
 	}
 
 	printk("\n");
+#else /* CONFIG_X86_64 */
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte;
+
+	pgd = (pgd_t *)read_cr3();
+
+	pgd = __va((unsigned long)pgd & PHYSICAL_PAGE_MASK);
+	pgd += pgd_index(address);
+	if (bad_address(pgd)) goto bad;
+	printk("PGD %lx ", pgd_val(*pgd));
+	if (!pgd_present(*pgd)) goto ret;
+
+	pud = pud_offset(pgd, address);
+	if (bad_address(pud)) goto bad;
+	printk("PUD %lx ", pud_val(*pud));
+	if (!pud_present(*pud))	goto ret;
+
+	pmd = pmd_offset(pud, address);
+	if (bad_address(pmd)) goto bad;
+	printk("PMD %lx ", pmd_val(*pmd));
+	if (!pmd_present(*pmd) || pmd_large(*pmd)) goto ret;
+
+	pte = pte_offset_kernel(pmd, address);
+	if (bad_address(pte)) goto bad;
+	printk("PTE %lx", pte_val(*pte));
+ret:
+	printk("\n");
+	return;
+bad:
+	printk("BAD\n");
+#endif
 }
 
+#ifdef CONFIG_X86_32
 static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 {
 	unsigned index = pgd_index(address);
@@ -246,6 +289,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 		BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
 	return pmd_k;
 }
+#endif
 
 #ifdef CONFIG_X86_64
 static const char errata93_warning[] =
@@ -326,6 +370,7 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
 static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 			    unsigned long address)
 {
+#ifdef CONFIG_X86_32
 	if (!oops_may_print())
 		return;
 
@@ -350,8 +395,40 @@ static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 	printk(KERN_ALERT "IP:");
 	printk_address(regs->ip, 1);
 	dump_pagetable(address);
+#else /* CONFIG_X86_64 */
+	printk(KERN_ALERT "BUG: unable to handle kernel ");
+	if (address < PAGE_SIZE)
+		printk(KERN_CONT "NULL pointer dereference");
+	else
+		printk(KERN_CONT "paging request");
+	printk(KERN_CONT " at %016lx\n", address);
+
+	printk(KERN_ALERT "IP:");
+	printk_address(regs->ip, 1);
+	dump_pagetable(address);
+#endif
 }
 
+#ifdef CONFIG_X86_64
+static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
+				 unsigned long error_code)
+{
+	unsigned long flags = oops_begin();
+	struct task_struct *tsk;
+
+	printk(KERN_ALERT "%s: Corrupted page table at address %lx\n",
+	       current->comm, address);
+	dump_pagetable(address);
+	tsk = current;
+	tsk->thread.cr2 = address;
+	tsk->thread.trap_no = 14;
+	tsk->thread.error_code = error_code;
+	if (__die("Bad pagetable", regs, error_code))
+		regs = NULL;
+	oops_end(flags, regs, SIGKILL);
+}
+#endif
+
 /*
  * Handle a fault on the vmalloc or module mapping area
  *
@@ -706,6 +783,7 @@ do_sigbus:
 
 void vmalloc_sync_all(void)
 {
+#ifdef CONFIG_X86_32
 	/*
 	 * Note that races in the updates of insync and start aren't
 	 * problematic: insync can only get set bits added, and updates to
@@ -740,4 +818,42 @@ void vmalloc_sync_all(void)
 		if (address == start && test_bit(pgd_index(address), insync))
 			start = address + PGDIR_SIZE;
 	}
+#else /* CONFIG_X86_64 */
+	/*
+	 * Note that races in the updates of insync and start aren't
+	 * problematic: insync can only get set bits added, and updates to
+	 * start are only improving performance (without affecting correctness
+	 * if undone).
+	 */
+	static DECLARE_BITMAP(insync, PTRS_PER_PGD);
+	static unsigned long start = VMALLOC_START & PGDIR_MASK;
+	unsigned long address;
+
+	for (address = start; address <= VMALLOC_END; address += PGDIR_SIZE) {
+		if (!test_bit(pgd_index(address), insync)) {
+			const pgd_t *pgd_ref = pgd_offset_k(address);
+			struct page *page;
+
+			if (pgd_none(*pgd_ref))
+				continue;
+			spin_lock(&pgd_lock);
+			list_for_each_entry(page, &pgd_list, lru) {
+				pgd_t *pgd;
+				pgd = (pgd_t *)page_address(page) + pgd_index(address);
+				if (pgd_none(*pgd))
+					set_pgd(pgd, *pgd_ref);
+				else
+					BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
+			}
+			spin_unlock(&pgd_lock);
+			set_bit(pgd_index(address), insync);
+		}
+		if (address == start)
+			start = address + PGDIR_SIZE;
+	}
+	/* Check that there is no need to do the same for the modules area. */
+	BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL));
+	BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==
+				(__START_KERNEL & PGDIR_MASK)));
+#endif
 }
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index e12c34ba4ba1..edca689c62d5 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -176,14 +176,52 @@ static void force_sig_info_fault(int si_signo, int si_code,
 	force_sig_info(si_signo, &info, tsk);
 }
 
+#ifdef CONFIG_X86_64
 static int bad_address(void *p)
 {
 	unsigned long dummy;
 	return probe_kernel_address((unsigned long *)p, dummy);
 }
+#endif
 
 void dump_pagetable(unsigned long address)
 {
+#ifdef CONFIG_X86_32
+	__typeof__(pte_val(__pte(0))) page;
+
+	page = read_cr3();
+	page = ((__typeof__(page) *) __va(page))[address >> PGDIR_SHIFT];
+#ifdef CONFIG_X86_PAE
+	printk("*pdpt = %016Lx ", page);
+	if ((page >> PAGE_SHIFT) < max_low_pfn
+	    && page & _PAGE_PRESENT) {
+		page &= PAGE_MASK;
+		page = ((__typeof__(page) *) __va(page))[(address >> PMD_SHIFT)
+		                                         & (PTRS_PER_PMD - 1)];
+		printk(KERN_CONT "*pde = %016Lx ", page);
+		page &= ~_PAGE_NX;
+	}
+#else
+	printk("*pde = %08lx ", page);
+#endif
+
+	/*
+	 * We must not directly access the pte in the highpte
+	 * case if the page table is located in highmem.
+	 * And let's rather not kmap-atomic the pte, just in case
+	 * it's allocated already.
+	 */
+	if ((page >> PAGE_SHIFT) < max_low_pfn
+	    && (page & _PAGE_PRESENT)
+	    && !(page & _PAGE_PSE)) {
+		page &= PAGE_MASK;
+		page = ((__typeof__(page) *) __va(page))[(address >> PAGE_SHIFT)
+		                                         & (PTRS_PER_PTE - 1)];
+		printk("*pte = %0*Lx ", sizeof(page)*2, (u64)page);
+	}
+
+	printk("\n");
+#else /* CONFIG_X86_64 */
 	pgd_t *pgd;
 	pud_t *pud;
 	pmd_t *pmd;
@@ -215,7 +253,46 @@ ret:
 	return;
 bad:
 	printk("BAD\n");
+#endif
+}
+
+#ifdef CONFIG_X86_32
+static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
+{
+	unsigned index = pgd_index(address);
+	pgd_t *pgd_k;
+	pud_t *pud, *pud_k;
+	pmd_t *pmd, *pmd_k;
+
+	pgd += index;
+	pgd_k = init_mm.pgd + index;
+
+	if (!pgd_present(*pgd_k))
+		return NULL;
+
+	/*
+	 * set_pgd(pgd, *pgd_k); here would be useless on PAE
+	 * and redundant with the set_pmd() on non-PAE. As would
+	 * set_pud.
+	 */
+
+	pud = pud_offset(pgd, address);
+	pud_k = pud_offset(pgd_k, address);
+	if (!pud_present(*pud_k))
+		return NULL;
+
+	pmd = pmd_offset(pud, address);
+	pmd_k = pmd_offset(pud_k, address);
+	if (!pmd_present(*pmd_k))
+		return NULL;
+	if (!pmd_present(*pmd)) {
+		set_pmd(pmd, *pmd_k);
+		arch_flush_lazy_mmu_mode();
+	} else
+		BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
+	return pmd_k;
 }
+#endif
 
 #ifdef CONFIG_X86_64
 static const char errata93_warning[] =
@@ -296,6 +373,32 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
 static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 			    unsigned long address)
 {
+#ifdef CONFIG_X86_32
+	if (!oops_may_print())
+		return;
+
+#ifdef CONFIG_X86_PAE
+	if (error_code & PF_INSTR) {
+		int level;
+		pte_t *pte = lookup_address(address, &level);
+
+		if (pte && pte_present(*pte) && !pte_exec(*pte))
+			printk(KERN_CRIT "kernel tried to execute "
+				"NX-protected page - exploit attempt? "
+				"(uid: %d)\n", current->uid);
+	}
+#endif
+	printk(KERN_ALERT "BUG: unable to handle kernel ");
+	if (address < PAGE_SIZE)
+		printk(KERN_CONT "NULL pointer dereference");
+	else
+		printk(KERN_CONT "paging request");
+	printk(KERN_CONT " at %08lx\n", address);
+
+	printk(KERN_ALERT "IP:");
+	printk_address(regs->ip, 1);
+	dump_pagetable(address);
+#else /* CONFIG_X86_64 */
 	printk(KERN_ALERT "BUG: unable to handle kernel ");
 	if (address < PAGE_SIZE)
 		printk(KERN_CONT "NULL pointer dereference");
@@ -306,8 +409,10 @@ static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 	printk(KERN_ALERT "IP:");
 	printk_address(regs->ip, 1);
 	dump_pagetable(address);
+#endif
 }
 
+#ifdef CONFIG_X86_64
 static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
 				 unsigned long error_code)
 {
@@ -325,6 +430,7 @@ static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
 		regs = NULL;
 	oops_end(flags, regs, SIGKILL);
 }
+#endif
 
 /*
  * Handle a fault on the vmalloc area
@@ -590,12 +696,15 @@ bad_area:
 bad_area_nosemaphore:
 	/* User mode accesses just cause a SIGSEGV */
 	if (error_code & PF_USER) {
-
 		/*
 		 * It's possible to have interrupts off here.
 		 */
 		local_irq_enable();
 
+		/*
+		 * Valid to do another page fault here because this one came
+		 * from user space.
+		 */
 		if (is_prefetch(regs, address, error_code))
 			return;
 
@@ -696,6 +805,42 @@ LIST_HEAD(pgd_list);
 
 void vmalloc_sync_all(void)
 {
+#ifdef CONFIG_X86_32
+	/*
+	 * Note that races in the updates of insync and start aren't
+	 * problematic: insync can only get set bits added, and updates to
+	 * start are only improving performance (without affecting correctness
+	 * if undone).
+	 */
+	static DECLARE_BITMAP(insync, PTRS_PER_PGD);
+	static unsigned long start = TASK_SIZE;
+	unsigned long address;
+
+	if (SHARED_KERNEL_PMD)
+		return;
+
+	BUILD_BUG_ON(TASK_SIZE & ~PGDIR_MASK);
+	for (address = start; address >= TASK_SIZE; address += PGDIR_SIZE) {
+		if (!test_bit(pgd_index(address), insync)) {
+			unsigned long flags;
+			struct page *page;
+
+			spin_lock_irqsave(&pgd_lock, flags);
+			for (page = pgd_list; page; page =
+					(struct page *)page->index)
+				if (!vmalloc_sync_one(page_address(page),
+								address)) {
+					BUG_ON(page != pgd_list);
+					break;
+				}
+			spin_unlock_irqrestore(&pgd_lock, flags);
+			if (!page)
+				set_bit(pgd_index(address), insync);
+		}
+		if (address == start && test_bit(pgd_index(address), insync))
+			start = address + PGDIR_SIZE;
+	}
+#else /* CONFIG_X86_64 */
 	/*
 	 * Note that races in the updates of insync and start aren't
 	 * problematic: insync can only get set bits added, and updates to
@@ -732,4 +877,5 @@ void vmalloc_sync_all(void)
 	BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL));
 	BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==
 				(__START_KERNEL & PGDIR_MASK)));
+#endif
 }
-- 
cgit v1.2.3-59-g8ed1b


From f8c2ee224d8397364835204c6c0130d08c2e644c Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:34:10 +0100
Subject: x86: unify fault_32|64.c with ifdefs

Elimination of these ifdefs can be done in a unified file.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault_32.c | 100 ++++++++++++++++++++++++++++++++++++++++++++++---
 arch/x86/mm/fault_64.c |  93 +++++++++++++++++++++++++++++++++++++++------
 2 files changed, 177 insertions(+), 16 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 7d9ecbbba745..4da4625c6968 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -48,7 +48,11 @@ static inline int notify_page_fault(struct pt_regs *regs)
 	int ret = 0;
 
 	/* kprobe_running() needs smp_processor_id() */
+#ifdef CONFIG_X86_32
 	if (!user_mode_vm(regs)) {
+#else
+	if (!user_mode(regs)) {
+#endif
 		preempt_disable();
 		if (kprobe_running() && kprobe_fault_handler(regs, 14))
 			ret = 1;
@@ -430,11 +434,15 @@ static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
 #endif
 
 /*
+ * X86_32
  * Handle a fault on the vmalloc or module mapping area
  *
+ * X86_64
+ * Handle a fault on the vmalloc area
+ *
  * This assumes no large pages in there.
  */
-static inline int vmalloc_fault(unsigned long address)
+static int vmalloc_fault(unsigned long address)
 {
 #ifdef CONFIG_X86_32
 	unsigned long pgd_paddr;
@@ -509,6 +517,9 @@ int show_unhandled_signals = 1;
  * and the problem, and then passes it off to one of the appropriate
  * routines.
  */
+#ifdef CONFIG_X86_64
+asmlinkage
+#endif
 void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 {
 	struct task_struct *tsk;
@@ -517,6 +528,9 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	unsigned long address;
 	int write, si_code;
 	int fault;
+#ifdef CONFIG_X86_64
+	unsigned long flags;
+#endif
 
 	/*
 	 * We can fault from pretty much anywhere, with unknown IRQ state.
@@ -548,6 +562,7 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	 * (error_code & 4) == 0, and that the fault was not a
 	 * protection error (error_code & 9) == 0.
 	 */
+#ifdef CONFIG_X86_32
 	if (unlikely(address >= TASK_SIZE)) {
 		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
 		    vmalloc_fault(address) >= 0)
@@ -570,7 +585,45 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	 */
 	if (in_atomic() || !mm)
 		goto bad_area_nosemaphore;
+#else /* CONFIG_X86_64 */
+	if (unlikely(address >= TASK_SIZE64)) {
+		/*
+		 * Don't check for the module range here: its PML4
+		 * is always initialized because it's shared with the main
+		 * kernel text. Only vmalloc may need PML4 syncups.
+		 */
+		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
+		      ((address >= VMALLOC_START && address < VMALLOC_END))) {
+			if (vmalloc_fault(address) >= 0)
+				return;
+		}
+		/*
+		 * Don't take the mm semaphore here. If we fixup a prefetch
+		 * fault we could otherwise deadlock.
+		 */
+		goto bad_area_nosemaphore;
+	}
+	if (likely(regs->flags & X86_EFLAGS_IF))
+		local_irq_enable();
+
+	if (unlikely(error_code & PF_RSVD))
+		pgtable_bad(address, regs, error_code);
+
+	/*
+	 * If we're in an interrupt, have no user context or are running in an
+	 * atomic region then we must not take the fault.
+	 */
+	if (unlikely(in_atomic() || !mm))
+		goto bad_area_nosemaphore;
 
+	/*
+	 * User-mode registers count as a user access even for any
+	 * potential system fault or CPU buglet.
+	 */
+	if (user_mode_vm(regs))
+		error_code |= PF_USER;
+again:
+#endif
 	/* When running in the kernel we expect faults to occur only to
 	 * addresses in user space.  All other faults represent errors in the
 	 * kernel and should generate an OOPS.  Unfortunately, in the case of an
@@ -596,7 +649,11 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	vma = find_vma(mm, address);
 	if (!vma)
 		goto bad_area;
+#ifdef CONFIG_X86_32
 	if (vma->vm_start <= address)
+#else
+	if (likely(vma->vm_start <= address))
+#endif
 		goto good_area;
 	if (!(vma->vm_flags & VM_GROWSDOWN))
 		goto bad_area;
@@ -634,7 +691,9 @@ good_area:
 			goto bad_area;
 	}
 
- survive:
+#ifdef CONFIG_X86_32
+survive:
+#endif
 	/*
 	 * If for any reason at all we couldn't handle the fault,
 	 * make sure we exit gracefully rather than endlessly redo
@@ -705,6 +764,7 @@ bad_area_nosemaphore:
 			print_vma_addr(" in ", regs->ip);
 			printk("\n");
 		}
+
 		tsk->thread.cr2 = address;
 		/* Kernel addresses are always protection faults */
 		tsk->thread.error_code = error_code | (address >= TASK_SIZE);
@@ -722,9 +782,13 @@ no_context:
 		return;
 
 	/*
+	 * X86_32
 	 * Valid to do another page fault here, because if this fault
 	 * had been triggered by is_prefetch fixup_exception would have
 	 * handled it.
+	 *
+	 * X86_64
+	 * Hall of shame of CPU/BIOS bugs.
 	 */
 	if (is_prefetch(regs, address, error_code))
 		return;
@@ -736,7 +800,7 @@ no_context:
  * Oops. The kernel tried to access some bad page. We'll have to
  * terminate things with extreme prejudice.
  */
-
+#ifdef CONFIG_X86_32
 	bust_spinlocks(1);
 
 	show_fault_oops(regs, error_code, address);
@@ -747,6 +811,20 @@ no_context:
 	die("Oops", regs, error_code);
 	bust_spinlocks(0);
 	do_exit(SIGKILL);
+#else /* CONFIG_X86_64 */
+	flags = oops_begin();
+
+	show_fault_oops(regs, error_code, address);
+
+	tsk->thread.cr2 = address;
+	tsk->thread.trap_no = 14;
+	tsk->thread.error_code = error_code;
+	if (__die("Oops", regs, error_code))
+		regs = NULL;
+	/* Executive summary in case the body of the oops scrolled away */
+	printk(KERN_EMERG "CR2: %016lx\n", address);
+	oops_end(flags, regs, SIGKILL);
+#endif
 
 /*
  * We ran out of memory, or some other thing happened to us that made
@@ -754,11 +832,18 @@ no_context:
  */
 out_of_memory:
 	up_read(&mm->mmap_sem);
+#ifdef CONFIG_X86_32
 	if (is_global_init(tsk)) {
 		yield();
 		down_read(&mm->mmap_sem);
 		goto survive;
 	}
+#else
+	if (is_global_init(current)) {
+		yield();
+		goto again;
+	}
+#endif
 	printk("VM: killing process %s\n", tsk->comm);
 	if (error_code & PF_USER)
 		do_group_exit(SIGKILL);
@@ -770,17 +855,22 @@ do_sigbus:
 	/* Kernel mode? Handle exceptions or die */
 	if (!(error_code & PF_USER))
 		goto no_context;
-
+#ifdef CONFIG_X86_32
 	/* User space => ok to do another page fault */
 	if (is_prefetch(regs, address, error_code))
 		return;
-
+#endif
 	tsk->thread.cr2 = address;
 	tsk->thread.error_code = error_code;
 	tsk->thread.trap_no = 14;
 	force_sig_info_fault(SIGBUS, BUS_ADRERR, address, tsk);
 }
 
+#ifdef CONFIG_X86_64
+DEFINE_SPINLOCK(pgd_lock);
+LIST_HEAD(pgd_list);
+#endif
+
 void vmalloc_sync_all(void)
 {
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index edca689c62d5..0902719388bc 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -51,7 +51,11 @@ static inline int notify_page_fault(struct pt_regs *regs)
 	int ret = 0;
 
 	/* kprobe_running() needs smp_processor_id() */
+#ifdef CONFIG_X86_32
+	if (!user_mode_vm(regs)) {
+#else
 	if (!user_mode(regs)) {
+#endif
 		preempt_disable();
 		if (kprobe_running() && kprobe_fault_handler(regs, 14))
 			ret = 1;
@@ -433,6 +437,10 @@ static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
 #endif
 
 /*
+ * X86_32
+ * Handle a fault on the vmalloc or module mapping area
+ *
+ * X86_64
  * Handle a fault on the vmalloc area
  *
  * This assumes no large pages in there.
@@ -512,16 +520,20 @@ int show_unhandled_signals = 1;
  * and the problem, and then passes it off to one of the appropriate
  * routines.
  */
-asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
-					unsigned long error_code)
+#ifdef CONFIG_X86_64
+asmlinkage
+#endif
+void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 {
 	struct task_struct *tsk;
 	struct mm_struct *mm;
 	struct vm_area_struct *vma;
 	unsigned long address;
-	int write, fault;
+	int write, si_code;
+	int fault;
+#ifdef CONFIG_X86_64
 	unsigned long flags;
-	int si_code;
+#endif
 
 	/*
 	 * We can fault from pretty much anywhere, with unknown IRQ state.
@@ -553,6 +565,30 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	 * (error_code & 4) == 0, and that the fault was not a
 	 * protection error (error_code & 9) == 0.
 	 */
+#ifdef CONFIG_X86_32
+	if (unlikely(address >= TASK_SIZE)) {
+		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
+		    vmalloc_fault(address) >= 0)
+			return;
+		/*
+		 * Don't take the mm semaphore here. If we fixup a prefetch
+		 * fault we could otherwise deadlock.
+		 */
+		goto bad_area_nosemaphore;
+	}
+
+	/* It's safe to allow irq's after cr2 has been saved and the vmalloc
+	   fault has been handled. */
+	if (regs->flags & (X86_EFLAGS_IF|VM_MASK))
+		local_irq_enable();
+
+	/*
+	 * If we're in an interrupt, have no user context or are running in an
+	 * atomic region then we must not take the fault.
+	 */
+	if (in_atomic() || !mm)
+		goto bad_area_nosemaphore;
+#else /* CONFIG_X86_64 */
 	if (unlikely(address >= TASK_SIZE64)) {
 		/*
 		 * Don't check for the module range here: its PML4
@@ -570,7 +606,6 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 		 */
 		goto bad_area_nosemaphore;
 	}
-
 	if (likely(regs->flags & X86_EFLAGS_IF))
 		local_irq_enable();
 
@@ -590,8 +625,8 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	 */
 	if (user_mode_vm(regs))
 		error_code |= PF_USER;
-
- again:
+again:
+#endif
 	/* When running in the kernel we expect faults to occur only to
 	 * addresses in user space.  All other faults represent errors in the
 	 * kernel and should generate an OOPS.  Unfortunately, in the case of an
@@ -617,7 +652,11 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	vma = find_vma(mm, address);
 	if (!vma)
 		goto bad_area;
+#ifdef CONFIG_X86_32
+	if (vma->vm_start <= address)
+#else
 	if (likely(vma->vm_start <= address))
+#endif
 		goto good_area;
 	if (!(vma->vm_flags & VM_GROWSDOWN))
 		goto bad_area;
@@ -655,6 +694,9 @@ good_area:
 			goto bad_area;
 	}
 
+#ifdef CONFIG_X86_32
+survive:
+#endif
 	/*
 	 * If for any reason at all we couldn't handle the fault,
 	 * make sure we exit gracefully rather than endlessly redo
@@ -730,7 +772,6 @@ bad_area_nosemaphore:
 		/* Kernel addresses are always protection faults */
 		tsk->thread.error_code = error_code | (address >= TASK_SIZE);
 		tsk->thread.trap_no = 14;
-
 		force_sig_info_fault(SIGSEGV, si_code, address, tsk);
 		return;
 	}
@@ -744,9 +785,14 @@ no_context:
 		return;
 
 	/*
+	 * X86_32
+	 * Valid to do another page fault here, because if this fault
+	 * had been triggered by is_prefetch fixup_exception would have
+	 * handled it.
+	 *
+	 * X86_64
 	 * Hall of shame of CPU/BIOS bugs.
 	 */
-
 	if (is_prefetch(regs, address, error_code))
 		return;
 
@@ -757,7 +803,18 @@ no_context:
  * Oops. The kernel tried to access some bad page. We'll have to
  * terminate things with extreme prejudice.
  */
+#ifdef CONFIG_X86_32
+	bust_spinlocks(1);
+
+	show_fault_oops(regs, error_code, address);
 
+	tsk->thread.cr2 = address;
+	tsk->thread.trap_no = 14;
+	tsk->thread.error_code = error_code;
+	die("Oops", regs, error_code);
+	bust_spinlocks(0);
+	do_exit(SIGKILL);
+#else /* CONFIG_X86_64 */
 	flags = oops_begin();
 
 	show_fault_oops(regs, error_code, address);
@@ -770,6 +827,7 @@ no_context:
 	/* Executive summary in case the body of the oops scrolled away */
 	printk(KERN_EMERG "CR2: %016lx\n", address);
 	oops_end(flags, regs, SIGKILL);
+#endif
 
 /*
  * We ran out of memory, or some other thing happened to us that made
@@ -777,10 +835,18 @@ no_context:
  */
 out_of_memory:
 	up_read(&mm->mmap_sem);
+#ifdef CONFIG_X86_32
+	if (is_global_init(tsk)) {
+		yield();
+		down_read(&mm->mmap_sem);
+		goto survive;
+	}
+#else
 	if (is_global_init(current)) {
 		yield();
 		goto again;
 	}
+#endif
 	printk("VM: killing process %s\n", tsk->comm);
 	if (error_code & PF_USER)
 		do_group_exit(SIGKILL);
@@ -792,16 +858,21 @@ do_sigbus:
 	/* Kernel mode? Handle exceptions or die */
 	if (!(error_code & PF_USER))
 		goto no_context;
-
+#ifdef CONFIG_X86_32
+	/* User space => ok to do another page fault */
+	if (is_prefetch(regs, address, error_code))
+		return;
+#endif
 	tsk->thread.cr2 = address;
 	tsk->thread.error_code = error_code;
 	tsk->thread.trap_no = 14;
 	force_sig_info_fault(SIGBUS, BUS_ADRERR, address, tsk);
-	return;
 }
 
+#ifdef CONFIG_X86_64
 DEFINE_SPINLOCK(pgd_lock);
 LIST_HEAD(pgd_list);
+#endif
 
 void vmalloc_sync_all(void)
 {
-- 
cgit v1.2.3-59-g8ed1b


From c61e211d9989e4c112d3d58db12ad58f9016a3c8 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:34:11 +0100
Subject: x86: unify fault_32|64.c

Unify includes in moved fault.c.

Modify Makefiles to pick up unified file.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/Makefile_32 |   2 +-
 arch/x86/mm/Makefile_64 |   2 +-
 arch/x86/mm/fault.c     | 955 ++++++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/mm/fault_32.c  | 949 -----------------------------------------------
 arch/x86/mm/fault_64.c  | 952 -----------------------------------------------
 5 files changed, 957 insertions(+), 1903 deletions(-)
 create mode 100644 arch/x86/mm/fault.c
 delete mode 100644 arch/x86/mm/fault_32.c
 delete mode 100644 arch/x86/mm/fault_64.c

(limited to 'arch')

diff --git a/arch/x86/mm/Makefile_32 b/arch/x86/mm/Makefile_32
index ffa6d46a1e73..c36ae88bb543 100644
--- a/arch/x86/mm/Makefile_32
+++ b/arch/x86/mm/Makefile_32
@@ -2,7 +2,7 @@
 # Makefile for the linux i386-specific parts of the memory manager.
 #
 
-obj-y	:= init_32.o pgtable_32.o fault_32.o ioremap.o extable.o pageattr.o mmap.o
+obj-y	:= init_32.o pgtable_32.o fault.o ioremap.o extable.o pageattr.o mmap.o
 
 obj-$(CONFIG_NUMA) += discontig_32.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
diff --git a/arch/x86/mm/Makefile_64 b/arch/x86/mm/Makefile_64
index 27a090c86e9b..688c8c28ac8f 100644
--- a/arch/x86/mm/Makefile_64
+++ b/arch/x86/mm/Makefile_64
@@ -2,7 +2,7 @@
 # Makefile for the linux x86_64-specific parts of the memory manager.
 #
 
-obj-y	 := init_64.o fault_64.o ioremap.o extable.o pageattr.o mmap.o
+obj-y	 := init_64.o fault.o ioremap.o extable.o pageattr.o mmap.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_NUMA) += numa_64.o
 obj-$(CONFIG_K8_NUMA) += k8topology_64.o
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
new file mode 100644
index 000000000000..14a0c6e541de
--- /dev/null
+++ b/arch/x86/mm/fault.c
@@ -0,0 +1,955 @@
+/*
+ *  Copyright (C) 1995  Linus Torvalds
+ *  Copyright (C) 2001,2002 Andi Kleen, SuSE Labs.
+ */
+
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/tty.h>
+#include <linux/vt_kern.h>		/* For unblank_screen() */
+#include <linux/compiler.h>
+#include <linux/highmem.h>
+#include <linux/bootmem.h>		/* for max_low_pfn */
+#include <linux/vmalloc.h>
+#include <linux/module.h>
+#include <linux/kprobes.h>
+#include <linux/uaccess.h>
+#include <linux/kdebug.h>
+
+#include <asm/system.h>
+#include <asm/desc.h>
+#include <asm/segment.h>
+#include <asm/pgalloc.h>
+#include <asm/smp.h>
+#include <asm/tlbflush.h>
+#include <asm/proto.h>
+#include <asm-generic/sections.h>
+
+/*
+ * Page fault error code bits
+ *	bit 0 == 0 means no page found, 1 means protection fault
+ *	bit 1 == 0 means read, 1 means write
+ *	bit 2 == 0 means kernel, 1 means user-mode
+ *	bit 3 == 1 means use of reserved bit detected
+ *	bit 4 == 1 means fault was an instruction fetch
+ */
+#define PF_PROT		(1<<0)
+#define PF_WRITE	(1<<1)
+#define PF_USER		(1<<2)
+#define PF_RSVD		(1<<3)
+#define PF_INSTR	(1<<4)
+
+static inline int notify_page_fault(struct pt_regs *regs)
+{
+#ifdef CONFIG_KPROBES
+	int ret = 0;
+
+	/* kprobe_running() needs smp_processor_id() */
+#ifdef CONFIG_X86_32
+	if (!user_mode_vm(regs)) {
+#else
+	if (!user_mode(regs)) {
+#endif
+		preempt_disable();
+		if (kprobe_running() && kprobe_fault_handler(regs, 14))
+			ret = 1;
+		preempt_enable();
+	}
+
+	return ret;
+#else
+	return 0;
+#endif
+}
+
+/*
+ * X86_32
+ * Sometimes AMD Athlon/Opteron CPUs report invalid exceptions on prefetch.
+ * Check that here and ignore it.
+ *
+ * X86_64
+ * Sometimes the CPU reports invalid exceptions on prefetch.
+ * Check that here and ignore it.
+ *
+ * Opcode checker based on code by Richard Brunner
+ */
+static int is_prefetch(struct pt_regs *regs, unsigned long addr,
+		       unsigned long error_code)
+{
+	unsigned char *instr;
+	int scan_more = 1;
+	int prefetch = 0;
+	unsigned char *max_instr;
+
+#ifdef CONFIG_X86_32
+# ifdef CONFIG_X86_PAE
+	/* If it was a exec fault on NX page, ignore */
+	if (nx_enabled && (error_code & PF_INSTR))
+		return 0;
+# else
+	return 0;
+# endif
+#else /* CONFIG_X86_64 */
+	/* If it was a exec fault on NX page, ignore */
+	if (error_code & PF_INSTR)
+		return 0;
+#endif
+
+	instr = (unsigned char *)convert_ip_to_linear(current, regs);
+	max_instr = instr + 15;
+
+	if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE)
+		return 0;
+
+	while (scan_more && instr < max_instr) {
+		unsigned char opcode;
+		unsigned char instr_hi;
+		unsigned char instr_lo;
+
+		if (probe_kernel_address(instr, opcode))
+			break;
+
+		instr_hi = opcode & 0xf0;
+		instr_lo = opcode & 0x0f;
+		instr++;
+
+		switch (instr_hi) {
+		case 0x20:
+		case 0x30:
+			/*
+			 * Values 0x26,0x2E,0x36,0x3E are valid x86 prefixes.
+			 * In X86_64 long mode, the CPU will signal invalid
+			 * opcode if some of these prefixes are present so
+			 * X86_64 will never get here anyway
+			 */
+			scan_more = ((instr_lo & 7) == 0x6);
+			break;
+#ifdef CONFIG_X86_64
+		case 0x40:
+			/*
+			 * In AMD64 long mode 0x40..0x4F are valid REX prefixes
+			 * Need to figure out under what instruction mode the
+			 * instruction was issued. Could check the LDT for lm,
+			 * but for now it's good enough to assume that long
+			 * mode only uses well known segments or kernel.
+			 */
+			scan_more = (!user_mode(regs)) || (regs->cs == __USER_CS);
+			break;
+#endif
+		case 0x60:
+			/* 0x64 thru 0x67 are valid prefixes in all modes. */
+			scan_more = (instr_lo & 0xC) == 0x4;
+			break;
+		case 0xF0:
+			/* 0xF0, 0xF2, 0xF3 are valid prefixes in all modes. */
+			scan_more = !instr_lo || (instr_lo>>1) == 1;
+			break;
+		case 0x00:
+			/* Prefetch instruction is 0x0F0D or 0x0F18 */
+			scan_more = 0;
+
+			if (probe_kernel_address(instr, opcode))
+				break;
+			prefetch = (instr_lo == 0xF) &&
+				(opcode == 0x0D || opcode == 0x18);
+			break;
+		default:
+			scan_more = 0;
+			break;
+		}
+	}
+	return prefetch;
+}
+
+static void force_sig_info_fault(int si_signo, int si_code,
+	unsigned long address, struct task_struct *tsk)
+{
+	siginfo_t info;
+
+	info.si_signo = si_signo;
+	info.si_errno = 0;
+	info.si_code = si_code;
+	info.si_addr = (void __user *)address;
+	force_sig_info(si_signo, &info, tsk);
+}
+
+#ifdef CONFIG_X86_64
+static int bad_address(void *p)
+{
+	unsigned long dummy;
+	return probe_kernel_address((unsigned long *)p, dummy);
+}
+#endif
+
+void dump_pagetable(unsigned long address)
+{
+#ifdef CONFIG_X86_32
+	__typeof__(pte_val(__pte(0))) page;
+
+	page = read_cr3();
+	page = ((__typeof__(page) *) __va(page))[address >> PGDIR_SHIFT];
+#ifdef CONFIG_X86_PAE
+	printk("*pdpt = %016Lx ", page);
+	if ((page >> PAGE_SHIFT) < max_low_pfn
+	    && page & _PAGE_PRESENT) {
+		page &= PAGE_MASK;
+		page = ((__typeof__(page) *) __va(page))[(address >> PMD_SHIFT)
+		                                         & (PTRS_PER_PMD - 1)];
+		printk(KERN_CONT "*pde = %016Lx ", page);
+		page &= ~_PAGE_NX;
+	}
+#else
+	printk("*pde = %08lx ", page);
+#endif
+
+	/*
+	 * We must not directly access the pte in the highpte
+	 * case if the page table is located in highmem.
+	 * And let's rather not kmap-atomic the pte, just in case
+	 * it's allocated already.
+	 */
+	if ((page >> PAGE_SHIFT) < max_low_pfn
+	    && (page & _PAGE_PRESENT)
+	    && !(page & _PAGE_PSE)) {
+		page &= PAGE_MASK;
+		page = ((__typeof__(page) *) __va(page))[(address >> PAGE_SHIFT)
+		                                         & (PTRS_PER_PTE - 1)];
+		printk("*pte = %0*Lx ", sizeof(page)*2, (u64)page);
+	}
+
+	printk("\n");
+#else /* CONFIG_X86_64 */
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte;
+
+	pgd = (pgd_t *)read_cr3();
+
+	pgd = __va((unsigned long)pgd & PHYSICAL_PAGE_MASK);
+	pgd += pgd_index(address);
+	if (bad_address(pgd)) goto bad;
+	printk("PGD %lx ", pgd_val(*pgd));
+	if (!pgd_present(*pgd)) goto ret;
+
+	pud = pud_offset(pgd, address);
+	if (bad_address(pud)) goto bad;
+	printk("PUD %lx ", pud_val(*pud));
+	if (!pud_present(*pud))	goto ret;
+
+	pmd = pmd_offset(pud, address);
+	if (bad_address(pmd)) goto bad;
+	printk("PMD %lx ", pmd_val(*pmd));
+	if (!pmd_present(*pmd) || pmd_large(*pmd)) goto ret;
+
+	pte = pte_offset_kernel(pmd, address);
+	if (bad_address(pte)) goto bad;
+	printk("PTE %lx", pte_val(*pte));
+ret:
+	printk("\n");
+	return;
+bad:
+	printk("BAD\n");
+#endif
+}
+
+#ifdef CONFIG_X86_32
+static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
+{
+	unsigned index = pgd_index(address);
+	pgd_t *pgd_k;
+	pud_t *pud, *pud_k;
+	pmd_t *pmd, *pmd_k;
+
+	pgd += index;
+	pgd_k = init_mm.pgd + index;
+
+	if (!pgd_present(*pgd_k))
+		return NULL;
+
+	/*
+	 * set_pgd(pgd, *pgd_k); here would be useless on PAE
+	 * and redundant with the set_pmd() on non-PAE. As would
+	 * set_pud.
+	 */
+
+	pud = pud_offset(pgd, address);
+	pud_k = pud_offset(pgd_k, address);
+	if (!pud_present(*pud_k))
+		return NULL;
+
+	pmd = pmd_offset(pud, address);
+	pmd_k = pmd_offset(pud_k, address);
+	if (!pmd_present(*pmd_k))
+		return NULL;
+	if (!pmd_present(*pmd)) {
+		set_pmd(pmd, *pmd_k);
+		arch_flush_lazy_mmu_mode();
+	} else
+		BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
+	return pmd_k;
+}
+#endif
+
+#ifdef CONFIG_X86_64
+static const char errata93_warning[] =
+KERN_ERR "******* Your BIOS seems to not contain a fix for K8 errata #93\n"
+KERN_ERR "******* Working around it, but it may cause SEGVs or burn power.\n"
+KERN_ERR "******* Please consider a BIOS update.\n"
+KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
+#endif
+
+/* Workaround for K8 erratum #93 & buggy BIOS.
+   BIOS SMM functions are required to use a specific workaround
+   to avoid corruption of the 64bit RIP register on C stepping K8.
+   A lot of BIOS that didn't get tested properly miss this.
+   The OS sees this as a page fault with the upper 32bits of RIP cleared.
+   Try to work around it here.
+   Note we only handle faults in kernel here.
+   Does nothing for X86_32
+ */
+static int is_errata93(struct pt_regs *regs, unsigned long address)
+{
+#ifdef CONFIG_X86_64
+	static int warned;
+	if (address != regs->ip)
+		return 0;
+	if ((address >> 32) != 0)
+		return 0;
+	address |= 0xffffffffUL << 32;
+	if ((address >= (u64)_stext && address <= (u64)_etext) ||
+	    (address >= MODULES_VADDR && address <= MODULES_END)) {
+		if (!warned) {
+			printk(errata93_warning);
+			warned = 1;
+		}
+		regs->ip = address;
+		return 1;
+	}
+#endif
+	return 0;
+}
+
+/*
+ * Work around K8 erratum #100 K8 in compat mode occasionally jumps to illegal
+ * addresses >4GB.  We catch this in the page fault handler because these
+ * addresses are not reachable. Just detect this case and return.  Any code
+ * segment in LDT is compatibility mode.
+ */
+static int is_errata100(struct pt_regs *regs, unsigned long address)
+{
+#ifdef CONFIG_X86_64
+	if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) &&
+	    (address >> 32))
+		return 1;
+#endif
+	return 0;
+}
+
+void do_invalid_op(struct pt_regs *, unsigned long);
+
+static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
+{
+#ifdef CONFIG_X86_F00F_BUG
+	unsigned long nr;
+	/*
+	 * Pentium F0 0F C7 C8 bug workaround.
+	 */
+	if (boot_cpu_data.f00f_bug) {
+		nr = (address - idt_descr.address) >> 3;
+
+		if (nr == 6) {
+			do_invalid_op(regs, 0);
+			return 1;
+		}
+	}
+#endif
+	return 0;
+}
+
+static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
+			    unsigned long address)
+{
+#ifdef CONFIG_X86_32
+	if (!oops_may_print())
+		return;
+
+#ifdef CONFIG_X86_PAE
+	if (error_code & PF_INSTR) {
+		int level;
+		pte_t *pte = lookup_address(address, &level);
+
+		if (pte && pte_present(*pte) && !pte_exec(*pte))
+			printk(KERN_CRIT "kernel tried to execute "
+				"NX-protected page - exploit attempt? "
+				"(uid: %d)\n", current->uid);
+	}
+#endif
+	printk(KERN_ALERT "BUG: unable to handle kernel ");
+	if (address < PAGE_SIZE)
+		printk(KERN_CONT "NULL pointer dereference");
+	else
+		printk(KERN_CONT "paging request");
+	printk(KERN_CONT " at %08lx\n", address);
+
+	printk(KERN_ALERT "IP:");
+	printk_address(regs->ip, 1);
+	dump_pagetable(address);
+#else /* CONFIG_X86_64 */
+	printk(KERN_ALERT "BUG: unable to handle kernel ");
+	if (address < PAGE_SIZE)
+		printk(KERN_CONT "NULL pointer dereference");
+	else
+		printk(KERN_CONT "paging request");
+	printk(KERN_CONT " at %016lx\n", address);
+
+	printk(KERN_ALERT "IP:");
+	printk_address(regs->ip, 1);
+	dump_pagetable(address);
+#endif
+}
+
+#ifdef CONFIG_X86_64
+static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
+				 unsigned long error_code)
+{
+	unsigned long flags = oops_begin();
+	struct task_struct *tsk;
+
+	printk(KERN_ALERT "%s: Corrupted page table at address %lx\n",
+	       current->comm, address);
+	dump_pagetable(address);
+	tsk = current;
+	tsk->thread.cr2 = address;
+	tsk->thread.trap_no = 14;
+	tsk->thread.error_code = error_code;
+	if (__die("Bad pagetable", regs, error_code))
+		regs = NULL;
+	oops_end(flags, regs, SIGKILL);
+}
+#endif
+
+/*
+ * X86_32
+ * Handle a fault on the vmalloc or module mapping area
+ *
+ * X86_64
+ * Handle a fault on the vmalloc area
+ *
+ * This assumes no large pages in there.
+ */
+static int vmalloc_fault(unsigned long address)
+{
+#ifdef CONFIG_X86_32
+	unsigned long pgd_paddr;
+	pmd_t *pmd_k;
+	pte_t *pte_k;
+	/*
+	 * Synchronize this task's top level page-table
+	 * with the 'reference' page table.
+	 *
+	 * Do _not_ use "current" here. We might be inside
+	 * an interrupt in the middle of a task switch..
+	 */
+	pgd_paddr = read_cr3();
+	pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
+	if (!pmd_k)
+		return -1;
+	pte_k = pte_offset_kernel(pmd_k, address);
+	if (!pte_present(*pte_k))
+		return -1;
+	return 0;
+#else
+	pgd_t *pgd, *pgd_ref;
+	pud_t *pud, *pud_ref;
+	pmd_t *pmd, *pmd_ref;
+	pte_t *pte, *pte_ref;
+
+	/* Copy kernel mappings over when needed. This can also
+	   happen within a race in page table update. In the later
+	   case just flush. */
+
+	pgd = pgd_offset(current->mm ?: &init_mm, address);
+	pgd_ref = pgd_offset_k(address);
+	if (pgd_none(*pgd_ref))
+		return -1;
+	if (pgd_none(*pgd))
+		set_pgd(pgd, *pgd_ref);
+	else
+		BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
+
+	/* Below here mismatches are bugs because these lower tables
+	   are shared */
+
+	pud = pud_offset(pgd, address);
+	pud_ref = pud_offset(pgd_ref, address);
+	if (pud_none(*pud_ref))
+		return -1;
+	if (pud_none(*pud) || pud_page_vaddr(*pud) != pud_page_vaddr(*pud_ref))
+		BUG();
+	pmd = pmd_offset(pud, address);
+	pmd_ref = pmd_offset(pud_ref, address);
+	if (pmd_none(*pmd_ref))
+		return -1;
+	if (pmd_none(*pmd) || pmd_page(*pmd) != pmd_page(*pmd_ref))
+		BUG();
+	pte_ref = pte_offset_kernel(pmd_ref, address);
+	if (!pte_present(*pte_ref))
+		return -1;
+	pte = pte_offset_kernel(pmd, address);
+	/* Don't use pte_page here, because the mappings can point
+	   outside mem_map, and the NUMA hash lookup cannot handle
+	   that. */
+	if (!pte_present(*pte) || pte_pfn(*pte) != pte_pfn(*pte_ref))
+		BUG();
+	return 0;
+#endif
+}
+
+int show_unhandled_signals = 1;
+
+/*
+ * This routine handles page faults.  It determines the address,
+ * and the problem, and then passes it off to one of the appropriate
+ * routines.
+ */
+#ifdef CONFIG_X86_64
+asmlinkage
+#endif
+void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
+{
+	struct task_struct *tsk;
+	struct mm_struct *mm;
+	struct vm_area_struct *vma;
+	unsigned long address;
+	int write, si_code;
+	int fault;
+#ifdef CONFIG_X86_64
+	unsigned long flags;
+#endif
+
+	/*
+	 * We can fault from pretty much anywhere, with unknown IRQ state.
+	 */
+	trace_hardirqs_fixup();
+
+	tsk = current;
+	mm = tsk->mm;
+	prefetchw(&mm->mmap_sem);
+
+	/* get the address */
+	address = read_cr2();
+
+	si_code = SEGV_MAPERR;
+
+	if (notify_page_fault(regs))
+		return;
+
+	/*
+	 * We fault-in kernel-space virtual memory on-demand. The
+	 * 'reference' page table is init_mm.pgd.
+	 *
+	 * NOTE! We MUST NOT take any locks for this case. We may
+	 * be in an interrupt or a critical region, and should
+	 * only copy the information from the master page table,
+	 * nothing more.
+	 *
+	 * This verifies that the fault happens in kernel space
+	 * (error_code & 4) == 0, and that the fault was not a
+	 * protection error (error_code & 9) == 0.
+	 */
+#ifdef CONFIG_X86_32
+	if (unlikely(address >= TASK_SIZE)) {
+		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
+		    vmalloc_fault(address) >= 0)
+			return;
+		/*
+		 * Don't take the mm semaphore here. If we fixup a prefetch
+		 * fault we could otherwise deadlock.
+		 */
+		goto bad_area_nosemaphore;
+	}
+
+	/* It's safe to allow irq's after cr2 has been saved and the vmalloc
+	   fault has been handled. */
+	if (regs->flags & (X86_EFLAGS_IF|VM_MASK))
+		local_irq_enable();
+
+	/*
+	 * If we're in an interrupt, have no user context or are running in an
+	 * atomic region then we must not take the fault.
+	 */
+	if (in_atomic() || !mm)
+		goto bad_area_nosemaphore;
+#else /* CONFIG_X86_64 */
+	if (unlikely(address >= TASK_SIZE64)) {
+		/*
+		 * Don't check for the module range here: its PML4
+		 * is always initialized because it's shared with the main
+		 * kernel text. Only vmalloc may need PML4 syncups.
+		 */
+		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
+		      ((address >= VMALLOC_START && address < VMALLOC_END))) {
+			if (vmalloc_fault(address) >= 0)
+				return;
+		}
+		/*
+		 * Don't take the mm semaphore here. If we fixup a prefetch
+		 * fault we could otherwise deadlock.
+		 */
+		goto bad_area_nosemaphore;
+	}
+	if (likely(regs->flags & X86_EFLAGS_IF))
+		local_irq_enable();
+
+	if (unlikely(error_code & PF_RSVD))
+		pgtable_bad(address, regs, error_code);
+
+	/*
+	 * If we're in an interrupt, have no user context or are running in an
+	 * atomic region then we must not take the fault.
+	 */
+	if (unlikely(in_atomic() || !mm))
+		goto bad_area_nosemaphore;
+
+	/*
+	 * User-mode registers count as a user access even for any
+	 * potential system fault or CPU buglet.
+	 */
+	if (user_mode_vm(regs))
+		error_code |= PF_USER;
+again:
+#endif
+	/* When running in the kernel we expect faults to occur only to
+	 * addresses in user space.  All other faults represent errors in the
+	 * kernel and should generate an OOPS.  Unfortunately, in the case of an
+	 * erroneous fault occurring in a code path which already holds mmap_sem
+	 * we will deadlock attempting to validate the fault against the
+	 * address space.  Luckily the kernel only validly references user
+	 * space from well defined areas of code, which are listed in the
+	 * exceptions table.
+	 *
+	 * As the vast majority of faults will be valid we will only perform
+	 * the source reference check when there is a possibility of a deadlock.
+	 * Attempt to lock the address space, if we cannot we then validate the
+	 * source.  If this is invalid we can skip the address space check,
+	 * thus avoiding the deadlock.
+	 */
+	if (!down_read_trylock(&mm->mmap_sem)) {
+		if ((error_code & PF_USER) == 0 &&
+		    !search_exception_tables(regs->ip))
+			goto bad_area_nosemaphore;
+		down_read(&mm->mmap_sem);
+	}
+
+	vma = find_vma(mm, address);
+	if (!vma)
+		goto bad_area;
+#ifdef CONFIG_X86_32
+	if (vma->vm_start <= address)
+#else
+	if (likely(vma->vm_start <= address))
+#endif
+		goto good_area;
+	if (!(vma->vm_flags & VM_GROWSDOWN))
+		goto bad_area;
+	if (error_code & PF_USER) {
+		/*
+		 * Accessing the stack below %sp is always a bug.
+		 * The large cushion allows instructions like enter
+		 * and pusha to work.  ("enter $65535,$31" pushes
+		 * 32 pointers and then decrements %sp by 65535.)
+		 */
+		if (address + 65536 + 32 * sizeof(unsigned long) < regs->sp)
+			goto bad_area;
+	}
+	if (expand_stack(vma, address))
+		goto bad_area;
+/*
+ * Ok, we have a good vm_area for this memory access, so
+ * we can handle it..
+ */
+good_area:
+	si_code = SEGV_ACCERR;
+	write = 0;
+	switch (error_code & (PF_PROT|PF_WRITE)) {
+	default:	/* 3: write, present */
+		/* fall through */
+	case PF_WRITE:		/* write, not present */
+		if (!(vma->vm_flags & VM_WRITE))
+			goto bad_area;
+		write++;
+		break;
+	case PF_PROT:		/* read, present */
+		goto bad_area;
+	case 0:			/* read, not present */
+		if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
+			goto bad_area;
+	}
+
+#ifdef CONFIG_X86_32
+survive:
+#endif
+	/*
+	 * If for any reason at all we couldn't handle the fault,
+	 * make sure we exit gracefully rather than endlessly redo
+	 * the fault.
+	 */
+	fault = handle_mm_fault(mm, vma, address, write);
+	if (unlikely(fault & VM_FAULT_ERROR)) {
+		if (fault & VM_FAULT_OOM)
+			goto out_of_memory;
+		else if (fault & VM_FAULT_SIGBUS)
+			goto do_sigbus;
+		BUG();
+	}
+	if (fault & VM_FAULT_MAJOR)
+		tsk->maj_flt++;
+	else
+		tsk->min_flt++;
+
+#ifdef CONFIG_X86_32
+	/*
+	 * Did it hit the DOS screen memory VA from vm86 mode?
+	 */
+	if (v8086_mode(regs)) {
+		unsigned long bit = (address - 0xA0000) >> PAGE_SHIFT;
+		if (bit < 32)
+			tsk->thread.screen_bitmap |= 1 << bit;
+	}
+#endif
+	up_read(&mm->mmap_sem);
+	return;
+
+/*
+ * Something tried to access memory that isn't in our memory map..
+ * Fix it, but check if it's kernel or user first..
+ */
+bad_area:
+	up_read(&mm->mmap_sem);
+
+bad_area_nosemaphore:
+	/* User mode accesses just cause a SIGSEGV */
+	if (error_code & PF_USER) {
+		/*
+		 * It's possible to have interrupts off here.
+		 */
+		local_irq_enable();
+
+		/*
+		 * Valid to do another page fault here because this one came
+		 * from user space.
+		 */
+		if (is_prefetch(regs, address, error_code))
+			return;
+
+		if (is_errata100(regs, address))
+			return;
+
+		if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
+		    printk_ratelimit()) {
+			printk(
+#ifdef CONFIG_X86_32
+			"%s%s[%d]: segfault at %lx ip %08lx sp %08lx error %lx",
+#else
+			"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx",
+#endif
+			task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
+			tsk->comm, task_pid_nr(tsk), address, regs->ip,
+			regs->sp, error_code);
+			print_vma_addr(" in ", regs->ip);
+			printk("\n");
+		}
+
+		tsk->thread.cr2 = address;
+		/* Kernel addresses are always protection faults */
+		tsk->thread.error_code = error_code | (address >= TASK_SIZE);
+		tsk->thread.trap_no = 14;
+		force_sig_info_fault(SIGSEGV, si_code, address, tsk);
+		return;
+	}
+
+	if (is_f00f_bug(regs, address))
+		return;
+
+no_context:
+	/* Are we prepared to handle this kernel fault?  */
+	if (fixup_exception(regs))
+		return;
+
+	/*
+	 * X86_32
+	 * Valid to do another page fault here, because if this fault
+	 * had been triggered by is_prefetch fixup_exception would have
+	 * handled it.
+	 *
+	 * X86_64
+	 * Hall of shame of CPU/BIOS bugs.
+	 */
+	if (is_prefetch(regs, address, error_code))
+		return;
+
+	if (is_errata93(regs, address))
+		return;
+
+/*
+ * Oops. The kernel tried to access some bad page. We'll have to
+ * terminate things with extreme prejudice.
+ */
+#ifdef CONFIG_X86_32
+	bust_spinlocks(1);
+
+	show_fault_oops(regs, error_code, address);
+
+	tsk->thread.cr2 = address;
+	tsk->thread.trap_no = 14;
+	tsk->thread.error_code = error_code;
+	die("Oops", regs, error_code);
+	bust_spinlocks(0);
+	do_exit(SIGKILL);
+#else /* CONFIG_X86_64 */
+	flags = oops_begin();
+
+	show_fault_oops(regs, error_code, address);
+
+	tsk->thread.cr2 = address;
+	tsk->thread.trap_no = 14;
+	tsk->thread.error_code = error_code;
+	if (__die("Oops", regs, error_code))
+		regs = NULL;
+	/* Executive summary in case the body of the oops scrolled away */
+	printk(KERN_EMERG "CR2: %016lx\n", address);
+	oops_end(flags, regs, SIGKILL);
+#endif
+
+/*
+ * We ran out of memory, or some other thing happened to us that made
+ * us unable to handle the page fault gracefully.
+ */
+out_of_memory:
+	up_read(&mm->mmap_sem);
+#ifdef CONFIG_X86_32
+	if (is_global_init(tsk)) {
+		yield();
+		down_read(&mm->mmap_sem);
+		goto survive;
+	}
+#else
+	if (is_global_init(current)) {
+		yield();
+		goto again;
+	}
+#endif
+	printk("VM: killing process %s\n", tsk->comm);
+	if (error_code & PF_USER)
+		do_group_exit(SIGKILL);
+	goto no_context;
+
+do_sigbus:
+	up_read(&mm->mmap_sem);
+
+	/* Kernel mode? Handle exceptions or die */
+	if (!(error_code & PF_USER))
+		goto no_context;
+#ifdef CONFIG_X86_32
+	/* User space => ok to do another page fault */
+	if (is_prefetch(regs, address, error_code))
+		return;
+#endif
+	tsk->thread.cr2 = address;
+	tsk->thread.error_code = error_code;
+	tsk->thread.trap_no = 14;
+	force_sig_info_fault(SIGBUS, BUS_ADRERR, address, tsk);
+}
+
+#ifdef CONFIG_X86_64
+DEFINE_SPINLOCK(pgd_lock);
+LIST_HEAD(pgd_list);
+#endif
+
+void vmalloc_sync_all(void)
+{
+#ifdef CONFIG_X86_32
+	/*
+	 * Note that races in the updates of insync and start aren't
+	 * problematic: insync can only get set bits added, and updates to
+	 * start are only improving performance (without affecting correctness
+	 * if undone).
+	 */
+	static DECLARE_BITMAP(insync, PTRS_PER_PGD);
+	static unsigned long start = TASK_SIZE;
+	unsigned long address;
+
+	if (SHARED_KERNEL_PMD)
+		return;
+
+	BUILD_BUG_ON(TASK_SIZE & ~PGDIR_MASK);
+	for (address = start; address >= TASK_SIZE; address += PGDIR_SIZE) {
+		if (!test_bit(pgd_index(address), insync)) {
+			unsigned long flags;
+			struct page *page;
+
+			spin_lock_irqsave(&pgd_lock, flags);
+			for (page = pgd_list; page; page =
+					(struct page *)page->index)
+				if (!vmalloc_sync_one(page_address(page),
+								address)) {
+					BUG_ON(page != pgd_list);
+					break;
+				}
+			spin_unlock_irqrestore(&pgd_lock, flags);
+			if (!page)
+				set_bit(pgd_index(address), insync);
+		}
+		if (address == start && test_bit(pgd_index(address), insync))
+			start = address + PGDIR_SIZE;
+	}
+#else /* CONFIG_X86_64 */
+	/*
+	 * Note that races in the updates of insync and start aren't
+	 * problematic: insync can only get set bits added, and updates to
+	 * start are only improving performance (without affecting correctness
+	 * if undone).
+	 */
+	static DECLARE_BITMAP(insync, PTRS_PER_PGD);
+	static unsigned long start = VMALLOC_START & PGDIR_MASK;
+	unsigned long address;
+
+	for (address = start; address <= VMALLOC_END; address += PGDIR_SIZE) {
+		if (!test_bit(pgd_index(address), insync)) {
+			const pgd_t *pgd_ref = pgd_offset_k(address);
+			struct page *page;
+
+			if (pgd_none(*pgd_ref))
+				continue;
+			spin_lock(&pgd_lock);
+			list_for_each_entry(page, &pgd_list, lru) {
+				pgd_t *pgd;
+				pgd = (pgd_t *)page_address(page) + pgd_index(address);
+				if (pgd_none(*pgd))
+					set_pgd(pgd, *pgd_ref);
+				else
+					BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
+			}
+			spin_unlock(&pgd_lock);
+			set_bit(pgd_index(address), insync);
+		}
+		if (address == start)
+			start = address + PGDIR_SIZE;
+	}
+	/* Check that there is no need to do the same for the modules area. */
+	BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL));
+	BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==
+				(__START_KERNEL & PGDIR_MASK)));
+#endif
+}
diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
deleted file mode 100644
index 4da4625c6968..000000000000
--- a/arch/x86/mm/fault_32.c
+++ /dev/null
@@ -1,949 +0,0 @@
-/*
- *  Copyright (C) 1995  Linus Torvalds
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/tty.h>
-#include <linux/vt_kern.h>		/* For unblank_screen() */
-#include <linux/highmem.h>
-#include <linux/bootmem.h>		/* for max_low_pfn */
-#include <linux/vmalloc.h>
-#include <linux/module.h>
-#include <linux/kprobes.h>
-#include <linux/uaccess.h>
-#include <linux/kdebug.h>
-
-#include <asm/system.h>
-#include <asm/desc.h>
-#include <asm/segment.h>
-
-/*
- * Page fault error code bits
- *	bit 0 == 0 means no page found, 1 means protection fault
- *	bit 1 == 0 means read, 1 means write
- *	bit 2 == 0 means kernel, 1 means user-mode
- *	bit 3 == 1 means use of reserved bit detected
- *	bit 4 == 1 means fault was an instruction fetch
- */
-#define PF_PROT		(1<<0)
-#define PF_WRITE	(1<<1)
-#define PF_USER		(1<<2)
-#define PF_RSVD		(1<<3)
-#define PF_INSTR	(1<<4)
-
-static inline int notify_page_fault(struct pt_regs *regs)
-{
-#ifdef CONFIG_KPROBES
-	int ret = 0;
-
-	/* kprobe_running() needs smp_processor_id() */
-#ifdef CONFIG_X86_32
-	if (!user_mode_vm(regs)) {
-#else
-	if (!user_mode(regs)) {
-#endif
-		preempt_disable();
-		if (kprobe_running() && kprobe_fault_handler(regs, 14))
-			ret = 1;
-		preempt_enable();
-	}
-
-	return ret;
-#else
-	return 0;
-#endif
-}
-
-/*
- * X86_32
- * Sometimes AMD Athlon/Opteron CPUs report invalid exceptions on prefetch.
- * Check that here and ignore it.
- *
- * X86_64
- * Sometimes the CPU reports invalid exceptions on prefetch.
- * Check that here and ignore it.
- *
- * Opcode checker based on code by Richard Brunner
- */
-static int is_prefetch(struct pt_regs *regs, unsigned long addr,
-		       unsigned long error_code)
-{
-	unsigned char *instr;
-	int scan_more = 1;
-	int prefetch = 0;
-	unsigned char *max_instr;
-
-#ifdef CONFIG_X86_32
-	if (unlikely(boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
-		     boot_cpu_data.x86 >= 6)) {
-		/* Catch an obscure case of prefetch inside an NX page. */
-		if (nx_enabled && (error_code & PF_INSTR))
-			return 0;
-	} else {
-		return 0;
-	}
-#else
-	/* If it was a exec fault ignore */
-	if (error_code & PF_INSTR)
-		return 0;
-#endif
-
-	instr = (unsigned char *)convert_ip_to_linear(current, regs);
-	max_instr = instr + 15;
-
-	if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE)
-		return 0;
-
-	while (scan_more && instr < max_instr) {
-		unsigned char opcode;
-		unsigned char instr_hi;
-		unsigned char instr_lo;
-
-		if (probe_kernel_address(instr, opcode))
-			break;
-
-		instr_hi = opcode & 0xf0;
-		instr_lo = opcode & 0x0f;
-		instr++;
-
-		switch (instr_hi) {
-		case 0x20:
-		case 0x30:
-			/*
-			 * Values 0x26,0x2E,0x36,0x3E are valid x86 prefixes.
-			 * In X86_64 long mode, the CPU will signal invalid
-			 * opcode if some of these prefixes are present so
-			 * X86_64 will never get here anyway
-			 */
-			scan_more = ((instr_lo & 7) == 0x6);
-			break;
-#ifdef CONFIG_X86_64
-		case 0x40:
-			/*
-			 * In AMD64 long mode 0x40..0x4F are valid REX prefixes
-			 * Need to figure out under what instruction mode the
-			 * instruction was issued. Could check the LDT for lm,
-			 * but for now it's good enough to assume that long
-			 * mode only uses well known segments or kernel.
-			 */
-			scan_more = (!user_mode(regs)) || (regs->cs == __USER_CS);
-			break;
-#endif
-		case 0x60:
-			/* 0x64 thru 0x67 are valid prefixes in all modes. */
-			scan_more = (instr_lo & 0xC) == 0x4;
-			break;
-		case 0xF0:
-			/* 0xF0, 0xF2, 0xF3 are valid prefixes in all modes. */
-			scan_more = !instr_lo || (instr_lo>>1) == 1;
-			break;
-		case 0x00:
-			/* Prefetch instruction is 0x0F0D or 0x0F18 */
-			scan_more = 0;
-
-			if (probe_kernel_address(instr, opcode))
-				break;
-			prefetch = (instr_lo == 0xF) &&
-				(opcode == 0x0D || opcode == 0x18);
-			break;
-		default:
-			scan_more = 0;
-			break;
-		}
-	}
-	return prefetch;
-}
-
-static void force_sig_info_fault(int si_signo, int si_code,
-	unsigned long address, struct task_struct *tsk)
-{
-	siginfo_t info;
-
-	info.si_signo = si_signo;
-	info.si_errno = 0;
-	info.si_code = si_code;
-	info.si_addr = (void __user *)address;
-	force_sig_info(si_signo, &info, tsk);
-}
-
-#ifdef CONFIG_X86_64
-static int bad_address(void *p)
-{
-	unsigned long dummy;
-	return probe_kernel_address((unsigned long *)p, dummy);
-}
-#endif
-
-void dump_pagetable(unsigned long address)
-{
-#ifdef CONFIG_X86_32
-	__typeof__(pte_val(__pte(0))) page;
-
-	page = read_cr3();
-	page = ((__typeof__(page) *) __va(page))[address >> PGDIR_SHIFT];
-#ifdef CONFIG_X86_PAE
-	printk("*pdpt = %016Lx ", page);
-	if ((page >> PAGE_SHIFT) < max_low_pfn
-	    && page & _PAGE_PRESENT) {
-		page &= PAGE_MASK;
-		page = ((__typeof__(page) *) __va(page))[(address >> PMD_SHIFT)
-		                                         & (PTRS_PER_PMD - 1)];
-		printk(KERN_CONT "*pde = %016Lx ", page);
-		page &= ~_PAGE_NX;
-	}
-#else
-	printk("*pde = %08lx ", page);
-#endif
-
-	/*
-	 * We must not directly access the pte in the highpte
-	 * case if the page table is located in highmem.
-	 * And let's rather not kmap-atomic the pte, just in case
-	 * it's allocated already.
-	 */
-	if ((page >> PAGE_SHIFT) < max_low_pfn
-	    && (page & _PAGE_PRESENT)
-	    && !(page & _PAGE_PSE)) {
-		page &= PAGE_MASK;
-		page = ((__typeof__(page) *) __va(page))[(address >> PAGE_SHIFT)
-		                                         & (PTRS_PER_PTE - 1)];
-		printk("*pte = %0*Lx ", sizeof(page)*2, (u64)page);
-	}
-
-	printk("\n");
-#else /* CONFIG_X86_64 */
-	pgd_t *pgd;
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t *pte;
-
-	pgd = (pgd_t *)read_cr3();
-
-	pgd = __va((unsigned long)pgd & PHYSICAL_PAGE_MASK);
-	pgd += pgd_index(address);
-	if (bad_address(pgd)) goto bad;
-	printk("PGD %lx ", pgd_val(*pgd));
-	if (!pgd_present(*pgd)) goto ret;
-
-	pud = pud_offset(pgd, address);
-	if (bad_address(pud)) goto bad;
-	printk("PUD %lx ", pud_val(*pud));
-	if (!pud_present(*pud))	goto ret;
-
-	pmd = pmd_offset(pud, address);
-	if (bad_address(pmd)) goto bad;
-	printk("PMD %lx ", pmd_val(*pmd));
-	if (!pmd_present(*pmd) || pmd_large(*pmd)) goto ret;
-
-	pte = pte_offset_kernel(pmd, address);
-	if (bad_address(pte)) goto bad;
-	printk("PTE %lx", pte_val(*pte));
-ret:
-	printk("\n");
-	return;
-bad:
-	printk("BAD\n");
-#endif
-}
-
-#ifdef CONFIG_X86_32
-static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
-{
-	unsigned index = pgd_index(address);
-	pgd_t *pgd_k;
-	pud_t *pud, *pud_k;
-	pmd_t *pmd, *pmd_k;
-
-	pgd += index;
-	pgd_k = init_mm.pgd + index;
-
-	if (!pgd_present(*pgd_k))
-		return NULL;
-
-	/*
-	 * set_pgd(pgd, *pgd_k); here would be useless on PAE
-	 * and redundant with the set_pmd() on non-PAE. As would
-	 * set_pud.
-	 */
-
-	pud = pud_offset(pgd, address);
-	pud_k = pud_offset(pgd_k, address);
-	if (!pud_present(*pud_k))
-		return NULL;
-
-	pmd = pmd_offset(pud, address);
-	pmd_k = pmd_offset(pud_k, address);
-	if (!pmd_present(*pmd_k))
-		return NULL;
-	if (!pmd_present(*pmd)) {
-		set_pmd(pmd, *pmd_k);
-		arch_flush_lazy_mmu_mode();
-	} else
-		BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
-	return pmd_k;
-}
-#endif
-
-#ifdef CONFIG_X86_64
-static const char errata93_warning[] =
-KERN_ERR "******* Your BIOS seems to not contain a fix for K8 errata #93\n"
-KERN_ERR "******* Working around it, but it may cause SEGVs or burn power.\n"
-KERN_ERR "******* Please consider a BIOS update.\n"
-KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
-#endif
-
-/* Workaround for K8 erratum #93 & buggy BIOS.
-   BIOS SMM functions are required to use a specific workaround
-   to avoid corruption of the 64bit RIP register on C stepping K8.
-   A lot of BIOS that didn't get tested properly miss this.
-   The OS sees this as a page fault with the upper 32bits of RIP cleared.
-   Try to work around it here.
-   Note we only handle faults in kernel here.
-   Does nothing for X86_32
- */
-static int is_errata93(struct pt_regs *regs, unsigned long address)
-{
-#ifdef CONFIG_X86_64
-	static int warned;
-	if (address != regs->ip)
-		return 0;
-	if ((address >> 32) != 0)
-		return 0;
-	address |= 0xffffffffUL << 32;
-	if ((address >= (u64)_stext && address <= (u64)_etext) ||
-	    (address >= MODULES_VADDR && address <= MODULES_END)) {
-		if (!warned) {
-			printk(errata93_warning);
-			warned = 1;
-		}
-		regs->ip = address;
-		return 1;
-	}
-#endif
-	return 0;
-}
-
-/*
- * Work around K8 erratum #100 K8 in compat mode occasionally jumps to illegal
- * addresses >4GB.  We catch this in the page fault handler because these
- * addresses are not reachable. Just detect this case and return.  Any code
- * segment in LDT is compatibility mode.
- */
-static int is_errata100(struct pt_regs *regs, unsigned long address)
-{
-#ifdef CONFIG_X86_64
-	if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) &&
-	    (address >> 32))
-		return 1;
-#endif
-	return 0;
-}
-
-void do_invalid_op(struct pt_regs *, unsigned long);
-
-static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
-{
-#ifdef CONFIG_X86_F00F_BUG
-	unsigned long nr;
-	/*
-	 * Pentium F0 0F C7 C8 bug workaround.
-	 */
-	if (boot_cpu_data.f00f_bug) {
-		nr = (address - idt_descr.address) >> 3;
-
-		if (nr == 6) {
-			do_invalid_op(regs, 0);
-			return 1;
-		}
-	}
-#endif
-	return 0;
-}
-
-static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
-			    unsigned long address)
-{
-#ifdef CONFIG_X86_32
-	if (!oops_may_print())
-		return;
-
-#ifdef CONFIG_X86_PAE
-	if (error_code & PF_INSTR) {
-		int level;
-		pte_t *pte = lookup_address(address, &level);
-
-		if (pte && pte_present(*pte) && !pte_exec(*pte))
-			printk(KERN_CRIT "kernel tried to execute "
-				"NX-protected page - exploit attempt? "
-				"(uid: %d)\n", current->uid);
-	}
-#endif
-	printk(KERN_ALERT "BUG: unable to handle kernel ");
-	if (address < PAGE_SIZE)
-		printk(KERN_CONT "NULL pointer dereference");
-	else
-		printk(KERN_CONT "paging request");
-	printk(KERN_CONT " at %08lx\n", address);
-
-	printk(KERN_ALERT "IP:");
-	printk_address(regs->ip, 1);
-	dump_pagetable(address);
-#else /* CONFIG_X86_64 */
-	printk(KERN_ALERT "BUG: unable to handle kernel ");
-	if (address < PAGE_SIZE)
-		printk(KERN_CONT "NULL pointer dereference");
-	else
-		printk(KERN_CONT "paging request");
-	printk(KERN_CONT " at %016lx\n", address);
-
-	printk(KERN_ALERT "IP:");
-	printk_address(regs->ip, 1);
-	dump_pagetable(address);
-#endif
-}
-
-#ifdef CONFIG_X86_64
-static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
-				 unsigned long error_code)
-{
-	unsigned long flags = oops_begin();
-	struct task_struct *tsk;
-
-	printk(KERN_ALERT "%s: Corrupted page table at address %lx\n",
-	       current->comm, address);
-	dump_pagetable(address);
-	tsk = current;
-	tsk->thread.cr2 = address;
-	tsk->thread.trap_no = 14;
-	tsk->thread.error_code = error_code;
-	if (__die("Bad pagetable", regs, error_code))
-		regs = NULL;
-	oops_end(flags, regs, SIGKILL);
-}
-#endif
-
-/*
- * X86_32
- * Handle a fault on the vmalloc or module mapping area
- *
- * X86_64
- * Handle a fault on the vmalloc area
- *
- * This assumes no large pages in there.
- */
-static int vmalloc_fault(unsigned long address)
-{
-#ifdef CONFIG_X86_32
-	unsigned long pgd_paddr;
-	pmd_t *pmd_k;
-	pte_t *pte_k;
-	/*
-	 * Synchronize this task's top level page-table
-	 * with the 'reference' page table.
-	 *
-	 * Do _not_ use "current" here. We might be inside
-	 * an interrupt in the middle of a task switch..
-	 */
-	pgd_paddr = read_cr3();
-	pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
-	if (!pmd_k)
-		return -1;
-	pte_k = pte_offset_kernel(pmd_k, address);
-	if (!pte_present(*pte_k))
-		return -1;
-	return 0;
-#else
-	pgd_t *pgd, *pgd_ref;
-	pud_t *pud, *pud_ref;
-	pmd_t *pmd, *pmd_ref;
-	pte_t *pte, *pte_ref;
-
-	/* Copy kernel mappings over when needed. This can also
-	   happen within a race in page table update. In the later
-	   case just flush. */
-
-	pgd = pgd_offset(current->mm ?: &init_mm, address);
-	pgd_ref = pgd_offset_k(address);
-	if (pgd_none(*pgd_ref))
-		return -1;
-	if (pgd_none(*pgd))
-		set_pgd(pgd, *pgd_ref);
-	else
-		BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
-
-	/* Below here mismatches are bugs because these lower tables
-	   are shared */
-
-	pud = pud_offset(pgd, address);
-	pud_ref = pud_offset(pgd_ref, address);
-	if (pud_none(*pud_ref))
-		return -1;
-	if (pud_none(*pud) || pud_page_vaddr(*pud) != pud_page_vaddr(*pud_ref))
-		BUG();
-	pmd = pmd_offset(pud, address);
-	pmd_ref = pmd_offset(pud_ref, address);
-	if (pmd_none(*pmd_ref))
-		return -1;
-	if (pmd_none(*pmd) || pmd_page(*pmd) != pmd_page(*pmd_ref))
-		BUG();
-	pte_ref = pte_offset_kernel(pmd_ref, address);
-	if (!pte_present(*pte_ref))
-		return -1;
-	pte = pte_offset_kernel(pmd, address);
-	/* Don't use pte_page here, because the mappings can point
-	   outside mem_map, and the NUMA hash lookup cannot handle
-	   that. */
-	if (!pte_present(*pte) || pte_pfn(*pte) != pte_pfn(*pte_ref))
-		BUG();
-	return 0;
-#endif
-}
-
-int show_unhandled_signals = 1;
-
-/*
- * This routine handles page faults.  It determines the address,
- * and the problem, and then passes it off to one of the appropriate
- * routines.
- */
-#ifdef CONFIG_X86_64
-asmlinkage
-#endif
-void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
-{
-	struct task_struct *tsk;
-	struct mm_struct *mm;
-	struct vm_area_struct *vma;
-	unsigned long address;
-	int write, si_code;
-	int fault;
-#ifdef CONFIG_X86_64
-	unsigned long flags;
-#endif
-
-	/*
-	 * We can fault from pretty much anywhere, with unknown IRQ state.
-	 */
-	trace_hardirqs_fixup();
-
-	tsk = current;
-	mm = tsk->mm;
-	prefetchw(&mm->mmap_sem);
-
-	/* get the address */
-	address = read_cr2();
-
-	si_code = SEGV_MAPERR;
-
-	if (notify_page_fault(regs))
-		return;
-
-	/*
-	 * We fault-in kernel-space virtual memory on-demand. The
-	 * 'reference' page table is init_mm.pgd.
-	 *
-	 * NOTE! We MUST NOT take any locks for this case. We may
-	 * be in an interrupt or a critical region, and should
-	 * only copy the information from the master page table,
-	 * nothing more.
-	 *
-	 * This verifies that the fault happens in kernel space
-	 * (error_code & 4) == 0, and that the fault was not a
-	 * protection error (error_code & 9) == 0.
-	 */
-#ifdef CONFIG_X86_32
-	if (unlikely(address >= TASK_SIZE)) {
-		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
-		    vmalloc_fault(address) >= 0)
-			return;
-		/*
-		 * Don't take the mm semaphore here. If we fixup a prefetch
-		 * fault we could otherwise deadlock.
-		 */
-		goto bad_area_nosemaphore;
-	}
-
-	/* It's safe to allow irq's after cr2 has been saved and the vmalloc
-	   fault has been handled. */
-	if (regs->flags & (X86_EFLAGS_IF|VM_MASK))
-		local_irq_enable();
-
-	/*
-	 * If we're in an interrupt, have no user context or are running in an
-	 * atomic region then we must not take the fault.
-	 */
-	if (in_atomic() || !mm)
-		goto bad_area_nosemaphore;
-#else /* CONFIG_X86_64 */
-	if (unlikely(address >= TASK_SIZE64)) {
-		/*
-		 * Don't check for the module range here: its PML4
-		 * is always initialized because it's shared with the main
-		 * kernel text. Only vmalloc may need PML4 syncups.
-		 */
-		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
-		      ((address >= VMALLOC_START && address < VMALLOC_END))) {
-			if (vmalloc_fault(address) >= 0)
-				return;
-		}
-		/*
-		 * Don't take the mm semaphore here. If we fixup a prefetch
-		 * fault we could otherwise deadlock.
-		 */
-		goto bad_area_nosemaphore;
-	}
-	if (likely(regs->flags & X86_EFLAGS_IF))
-		local_irq_enable();
-
-	if (unlikely(error_code & PF_RSVD))
-		pgtable_bad(address, regs, error_code);
-
-	/*
-	 * If we're in an interrupt, have no user context or are running in an
-	 * atomic region then we must not take the fault.
-	 */
-	if (unlikely(in_atomic() || !mm))
-		goto bad_area_nosemaphore;
-
-	/*
-	 * User-mode registers count as a user access even for any
-	 * potential system fault or CPU buglet.
-	 */
-	if (user_mode_vm(regs))
-		error_code |= PF_USER;
-again:
-#endif
-	/* When running in the kernel we expect faults to occur only to
-	 * addresses in user space.  All other faults represent errors in the
-	 * kernel and should generate an OOPS.  Unfortunately, in the case of an
-	 * erroneous fault occurring in a code path which already holds mmap_sem
-	 * we will deadlock attempting to validate the fault against the
-	 * address space.  Luckily the kernel only validly references user
-	 * space from well defined areas of code, which are listed in the
-	 * exceptions table.
-	 *
-	 * As the vast majority of faults will be valid we will only perform
-	 * the source reference check when there is a possibility of a deadlock.
-	 * Attempt to lock the address space, if we cannot we then validate the
-	 * source.  If this is invalid we can skip the address space check,
-	 * thus avoiding the deadlock.
-	 */
-	if (!down_read_trylock(&mm->mmap_sem)) {
-		if ((error_code & PF_USER) == 0 &&
-		    !search_exception_tables(regs->ip))
-			goto bad_area_nosemaphore;
-		down_read(&mm->mmap_sem);
-	}
-
-	vma = find_vma(mm, address);
-	if (!vma)
-		goto bad_area;
-#ifdef CONFIG_X86_32
-	if (vma->vm_start <= address)
-#else
-	if (likely(vma->vm_start <= address))
-#endif
-		goto good_area;
-	if (!(vma->vm_flags & VM_GROWSDOWN))
-		goto bad_area;
-	if (error_code & PF_USER) {
-		/*
-		 * Accessing the stack below %sp is always a bug.
-		 * The large cushion allows instructions like enter
-		 * and pusha to work.  ("enter $65535,$31" pushes
-		 * 32 pointers and then decrements %sp by 65535.)
-		 */
-		if (address + 65536 + 32 * sizeof(unsigned long) < regs->sp)
-			goto bad_area;
-	}
-	if (expand_stack(vma, address))
-		goto bad_area;
-/*
- * Ok, we have a good vm_area for this memory access, so
- * we can handle it..
- */
-good_area:
-	si_code = SEGV_ACCERR;
-	write = 0;
-	switch (error_code & (PF_PROT|PF_WRITE)) {
-	default:	/* 3: write, present */
-		/* fall through */
-	case PF_WRITE:		/* write, not present */
-		if (!(vma->vm_flags & VM_WRITE))
-			goto bad_area;
-		write++;
-		break;
-	case PF_PROT:		/* read, present */
-		goto bad_area;
-	case 0:			/* read, not present */
-		if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
-			goto bad_area;
-	}
-
-#ifdef CONFIG_X86_32
-survive:
-#endif
-	/*
-	 * If for any reason at all we couldn't handle the fault,
-	 * make sure we exit gracefully rather than endlessly redo
-	 * the fault.
-	 */
-	fault = handle_mm_fault(mm, vma, address, write);
-	if (unlikely(fault & VM_FAULT_ERROR)) {
-		if (fault & VM_FAULT_OOM)
-			goto out_of_memory;
-		else if (fault & VM_FAULT_SIGBUS)
-			goto do_sigbus;
-		BUG();
-	}
-	if (fault & VM_FAULT_MAJOR)
-		tsk->maj_flt++;
-	else
-		tsk->min_flt++;
-
-#ifdef CONFIG_X86_32
-	/*
-	 * Did it hit the DOS screen memory VA from vm86 mode?
-	 */
-	if (v8086_mode(regs)) {
-		unsigned long bit = (address - 0xA0000) >> PAGE_SHIFT;
-		if (bit < 32)
-			tsk->thread.screen_bitmap |= 1 << bit;
-	}
-#endif
-	up_read(&mm->mmap_sem);
-	return;
-
-/*
- * Something tried to access memory that isn't in our memory map..
- * Fix it, but check if it's kernel or user first..
- */
-bad_area:
-	up_read(&mm->mmap_sem);
-
-bad_area_nosemaphore:
-	/* User mode accesses just cause a SIGSEGV */
-	if (error_code & PF_USER) {
-		/*
-		 * It's possible to have interrupts off here.
-		 */
-		local_irq_enable();
-
-		/*
-		 * Valid to do another page fault here because this one came
-		 * from user space.
-		 */
-		if (is_prefetch(regs, address, error_code))
-			return;
-
-		if (is_errata100(regs, address))
-			return;
-
-		if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
-		    printk_ratelimit()) {
-			printk(
-#ifdef CONFIG_X86_32
-			"%s%s[%d]: segfault at %lx ip %08lx sp %08lx error %lx",
-#else
-			"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx",
-#endif
-			task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
-			tsk->comm, task_pid_nr(tsk), address, regs->ip,
-			regs->sp, error_code);
-			print_vma_addr(" in ", regs->ip);
-			printk("\n");
-		}
-
-		tsk->thread.cr2 = address;
-		/* Kernel addresses are always protection faults */
-		tsk->thread.error_code = error_code | (address >= TASK_SIZE);
-		tsk->thread.trap_no = 14;
-		force_sig_info_fault(SIGSEGV, si_code, address, tsk);
-		return;
-	}
-
-	if (is_f00f_bug(regs, address))
-		return;
-
-no_context:
-	/* Are we prepared to handle this kernel fault?  */
-	if (fixup_exception(regs))
-		return;
-
-	/*
-	 * X86_32
-	 * Valid to do another page fault here, because if this fault
-	 * had been triggered by is_prefetch fixup_exception would have
-	 * handled it.
-	 *
-	 * X86_64
-	 * Hall of shame of CPU/BIOS bugs.
-	 */
-	if (is_prefetch(regs, address, error_code))
-		return;
-
-	if (is_errata93(regs, address))
-		return;
-
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- */
-#ifdef CONFIG_X86_32
-	bust_spinlocks(1);
-
-	show_fault_oops(regs, error_code, address);
-
-	tsk->thread.cr2 = address;
-	tsk->thread.trap_no = 14;
-	tsk->thread.error_code = error_code;
-	die("Oops", regs, error_code);
-	bust_spinlocks(0);
-	do_exit(SIGKILL);
-#else /* CONFIG_X86_64 */
-	flags = oops_begin();
-
-	show_fault_oops(regs, error_code, address);
-
-	tsk->thread.cr2 = address;
-	tsk->thread.trap_no = 14;
-	tsk->thread.error_code = error_code;
-	if (__die("Oops", regs, error_code))
-		regs = NULL;
-	/* Executive summary in case the body of the oops scrolled away */
-	printk(KERN_EMERG "CR2: %016lx\n", address);
-	oops_end(flags, regs, SIGKILL);
-#endif
-
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
-out_of_memory:
-	up_read(&mm->mmap_sem);
-#ifdef CONFIG_X86_32
-	if (is_global_init(tsk)) {
-		yield();
-		down_read(&mm->mmap_sem);
-		goto survive;
-	}
-#else
-	if (is_global_init(current)) {
-		yield();
-		goto again;
-	}
-#endif
-	printk("VM: killing process %s\n", tsk->comm);
-	if (error_code & PF_USER)
-		do_group_exit(SIGKILL);
-	goto no_context;
-
-do_sigbus:
-	up_read(&mm->mmap_sem);
-
-	/* Kernel mode? Handle exceptions or die */
-	if (!(error_code & PF_USER))
-		goto no_context;
-#ifdef CONFIG_X86_32
-	/* User space => ok to do another page fault */
-	if (is_prefetch(regs, address, error_code))
-		return;
-#endif
-	tsk->thread.cr2 = address;
-	tsk->thread.error_code = error_code;
-	tsk->thread.trap_no = 14;
-	force_sig_info_fault(SIGBUS, BUS_ADRERR, address, tsk);
-}
-
-#ifdef CONFIG_X86_64
-DEFINE_SPINLOCK(pgd_lock);
-LIST_HEAD(pgd_list);
-#endif
-
-void vmalloc_sync_all(void)
-{
-#ifdef CONFIG_X86_32
-	/*
-	 * Note that races in the updates of insync and start aren't
-	 * problematic: insync can only get set bits added, and updates to
-	 * start are only improving performance (without affecting correctness
-	 * if undone).
-	 */
-	static DECLARE_BITMAP(insync, PTRS_PER_PGD);
-	static unsigned long start = TASK_SIZE;
-	unsigned long address;
-
-	if (SHARED_KERNEL_PMD)
-		return;
-
-	BUILD_BUG_ON(TASK_SIZE & ~PGDIR_MASK);
-	for (address = start; address >= TASK_SIZE; address += PGDIR_SIZE) {
-		if (!test_bit(pgd_index(address), insync)) {
-			unsigned long flags;
-			struct page *page;
-
-			spin_lock_irqsave(&pgd_lock, flags);
-			for (page = pgd_list; page; page =
-					(struct page *)page->index)
-				if (!vmalloc_sync_one(page_address(page),
-								address)) {
-					BUG_ON(page != pgd_list);
-					break;
-				}
-			spin_unlock_irqrestore(&pgd_lock, flags);
-			if (!page)
-				set_bit(pgd_index(address), insync);
-		}
-		if (address == start && test_bit(pgd_index(address), insync))
-			start = address + PGDIR_SIZE;
-	}
-#else /* CONFIG_X86_64 */
-	/*
-	 * Note that races in the updates of insync and start aren't
-	 * problematic: insync can only get set bits added, and updates to
-	 * start are only improving performance (without affecting correctness
-	 * if undone).
-	 */
-	static DECLARE_BITMAP(insync, PTRS_PER_PGD);
-	static unsigned long start = VMALLOC_START & PGDIR_MASK;
-	unsigned long address;
-
-	for (address = start; address <= VMALLOC_END; address += PGDIR_SIZE) {
-		if (!test_bit(pgd_index(address), insync)) {
-			const pgd_t *pgd_ref = pgd_offset_k(address);
-			struct page *page;
-
-			if (pgd_none(*pgd_ref))
-				continue;
-			spin_lock(&pgd_lock);
-			list_for_each_entry(page, &pgd_list, lru) {
-				pgd_t *pgd;
-				pgd = (pgd_t *)page_address(page) + pgd_index(address);
-				if (pgd_none(*pgd))
-					set_pgd(pgd, *pgd_ref);
-				else
-					BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
-			}
-			spin_unlock(&pgd_lock);
-			set_bit(pgd_index(address), insync);
-		}
-		if (address == start)
-			start = address + PGDIR_SIZE;
-	}
-	/* Check that there is no need to do the same for the modules area. */
-	BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL));
-	BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==
-				(__START_KERNEL & PGDIR_MASK)));
-#endif
-}
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
deleted file mode 100644
index 0902719388bc..000000000000
--- a/arch/x86/mm/fault_64.c
+++ /dev/null
@@ -1,952 +0,0 @@
-/*
- *  Copyright (C) 1995  Linus Torvalds
- *  Copyright (C) 2001,2002 Andi Kleen, SuSE Labs.
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/tty.h>
-#include <linux/vt_kern.h>		/* For unblank_screen() */
-#include <linux/compiler.h>
-#include <linux/vmalloc.h>
-#include <linux/module.h>
-#include <linux/kprobes.h>
-#include <linux/uaccess.h>
-#include <linux/kdebug.h>
-
-#include <asm/system.h>
-#include <asm/pgalloc.h>
-#include <asm/smp.h>
-#include <asm/tlbflush.h>
-#include <asm/proto.h>
-#include <asm-generic/sections.h>
-
-/*
- * Page fault error code bits
- *	bit 0 == 0 means no page found, 1 means protection fault
- *	bit 1 == 0 means read, 1 means write
- *	bit 2 == 0 means kernel, 1 means user-mode
- *	bit 3 == 1 means use of reserved bit detected
- *	bit 4 == 1 means fault was an instruction fetch
- */
-#define PF_PROT		(1<<0)
-#define PF_WRITE	(1<<1)
-#define PF_USER		(1<<2)
-#define PF_RSVD		(1<<3)
-#define PF_INSTR	(1<<4)
-
-static inline int notify_page_fault(struct pt_regs *regs)
-{
-#ifdef CONFIG_KPROBES
-	int ret = 0;
-
-	/* kprobe_running() needs smp_processor_id() */
-#ifdef CONFIG_X86_32
-	if (!user_mode_vm(regs)) {
-#else
-	if (!user_mode(regs)) {
-#endif
-		preempt_disable();
-		if (kprobe_running() && kprobe_fault_handler(regs, 14))
-			ret = 1;
-		preempt_enable();
-	}
-
-	return ret;
-#else
-	return 0;
-#endif
-}
-
-/*
- * X86_32
- * Sometimes AMD Athlon/Opteron CPUs report invalid exceptions on prefetch.
- * Check that here and ignore it.
- *
- * X86_64
- * Sometimes the CPU reports invalid exceptions on prefetch.
- * Check that here and ignore it.
- *
- * Opcode checker based on code by Richard Brunner
- */
-static int is_prefetch(struct pt_regs *regs, unsigned long addr,
-		       unsigned long error_code)
-{
-	unsigned char *instr;
-	int scan_more = 1;
-	int prefetch = 0;
-	unsigned char *max_instr;
-
-#ifdef CONFIG_X86_32
-	if (unlikely(boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
-		     boot_cpu_data.x86 >= 6)) {
-		/* Catch an obscure case of prefetch inside an NX page. */
-		if (nx_enabled && (error_code & PF_INSTR))
-			return 0;
-	} else {
-		return 0;
-	}
-#else
-	/* If it was a exec fault ignore */
-	if (error_code & PF_INSTR)
-		return 0;
-#endif
-
-	instr = (unsigned char *)convert_ip_to_linear(current, regs);
-	max_instr = instr + 15;
-
-	if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE)
-		return 0;
-
-	while (scan_more && instr < max_instr) {
-		unsigned char opcode;
-		unsigned char instr_hi;
-		unsigned char instr_lo;
-
-		if (probe_kernel_address(instr, opcode))
-			break;
-
-		instr_hi = opcode & 0xf0;
-		instr_lo = opcode & 0x0f;
-		instr++;
-
-		switch (instr_hi) {
-		case 0x20:
-		case 0x30:
-			/*
-			 * Values 0x26,0x2E,0x36,0x3E are valid x86 prefixes.
-			 * In X86_64 long mode, the CPU will signal invalid
-			 * opcode if some of these prefixes are present so
-			 * X86_64 will never get here anyway
-			 */
-			scan_more = ((instr_lo & 7) == 0x6);
-			break;
-#ifdef CONFIG_X86_64
-		case 0x40:
-			/*
-			 * In AMD64 long mode 0x40..0x4F are valid REX prefixes
-			 * Need to figure out under what instruction mode the
-			 * instruction was issued. Could check the LDT for lm,
-			 * but for now it's good enough to assume that long
-			 * mode only uses well known segments or kernel.
-			 */
-			scan_more = (!user_mode(regs)) || (regs->cs == __USER_CS);
-			break;
-#endif
-		case 0x60:
-			/* 0x64 thru 0x67 are valid prefixes in all modes. */
-			scan_more = (instr_lo & 0xC) == 0x4;
-			break;
-		case 0xF0:
-			/* 0xF0, 0xF2, 0xF3 are valid prefixes in all modes. */
-			scan_more = !instr_lo || (instr_lo>>1) == 1;
-			break;
-		case 0x00:
-			/* Prefetch instruction is 0x0F0D or 0x0F18 */
-			scan_more = 0;
-
-			if (probe_kernel_address(instr, opcode))
-				break;
-			prefetch = (instr_lo == 0xF) &&
-				(opcode == 0x0D || opcode == 0x18);
-			break;
-		default:
-			scan_more = 0;
-			break;
-		}
-	}
-	return prefetch;
-}
-
-static void force_sig_info_fault(int si_signo, int si_code,
-	unsigned long address, struct task_struct *tsk)
-{
-	siginfo_t info;
-
-	info.si_signo = si_signo;
-	info.si_errno = 0;
-	info.si_code = si_code;
-	info.si_addr = (void __user *)address;
-	force_sig_info(si_signo, &info, tsk);
-}
-
-#ifdef CONFIG_X86_64
-static int bad_address(void *p)
-{
-	unsigned long dummy;
-	return probe_kernel_address((unsigned long *)p, dummy);
-}
-#endif
-
-void dump_pagetable(unsigned long address)
-{
-#ifdef CONFIG_X86_32
-	__typeof__(pte_val(__pte(0))) page;
-
-	page = read_cr3();
-	page = ((__typeof__(page) *) __va(page))[address >> PGDIR_SHIFT];
-#ifdef CONFIG_X86_PAE
-	printk("*pdpt = %016Lx ", page);
-	if ((page >> PAGE_SHIFT) < max_low_pfn
-	    && page & _PAGE_PRESENT) {
-		page &= PAGE_MASK;
-		page = ((__typeof__(page) *) __va(page))[(address >> PMD_SHIFT)
-		                                         & (PTRS_PER_PMD - 1)];
-		printk(KERN_CONT "*pde = %016Lx ", page);
-		page &= ~_PAGE_NX;
-	}
-#else
-	printk("*pde = %08lx ", page);
-#endif
-
-	/*
-	 * We must not directly access the pte in the highpte
-	 * case if the page table is located in highmem.
-	 * And let's rather not kmap-atomic the pte, just in case
-	 * it's allocated already.
-	 */
-	if ((page >> PAGE_SHIFT) < max_low_pfn
-	    && (page & _PAGE_PRESENT)
-	    && !(page & _PAGE_PSE)) {
-		page &= PAGE_MASK;
-		page = ((__typeof__(page) *) __va(page))[(address >> PAGE_SHIFT)
-		                                         & (PTRS_PER_PTE - 1)];
-		printk("*pte = %0*Lx ", sizeof(page)*2, (u64)page);
-	}
-
-	printk("\n");
-#else /* CONFIG_X86_64 */
-	pgd_t *pgd;
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t *pte;
-
-	pgd = (pgd_t *)read_cr3();
-
-	pgd = __va((unsigned long)pgd & PHYSICAL_PAGE_MASK);
-	pgd += pgd_index(address);
-	if (bad_address(pgd)) goto bad;
-	printk("PGD %lx ", pgd_val(*pgd));
-	if (!pgd_present(*pgd)) goto ret;
-
-	pud = pud_offset(pgd, address);
-	if (bad_address(pud)) goto bad;
-	printk("PUD %lx ", pud_val(*pud));
-	if (!pud_present(*pud))	goto ret;
-
-	pmd = pmd_offset(pud, address);
-	if (bad_address(pmd)) goto bad;
-	printk("PMD %lx ", pmd_val(*pmd));
-	if (!pmd_present(*pmd) || pmd_large(*pmd)) goto ret;
-
-	pte = pte_offset_kernel(pmd, address);
-	if (bad_address(pte)) goto bad;
-	printk("PTE %lx", pte_val(*pte));
-ret:
-	printk("\n");
-	return;
-bad:
-	printk("BAD\n");
-#endif
-}
-
-#ifdef CONFIG_X86_32
-static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
-{
-	unsigned index = pgd_index(address);
-	pgd_t *pgd_k;
-	pud_t *pud, *pud_k;
-	pmd_t *pmd, *pmd_k;
-
-	pgd += index;
-	pgd_k = init_mm.pgd + index;
-
-	if (!pgd_present(*pgd_k))
-		return NULL;
-
-	/*
-	 * set_pgd(pgd, *pgd_k); here would be useless on PAE
-	 * and redundant with the set_pmd() on non-PAE. As would
-	 * set_pud.
-	 */
-
-	pud = pud_offset(pgd, address);
-	pud_k = pud_offset(pgd_k, address);
-	if (!pud_present(*pud_k))
-		return NULL;
-
-	pmd = pmd_offset(pud, address);
-	pmd_k = pmd_offset(pud_k, address);
-	if (!pmd_present(*pmd_k))
-		return NULL;
-	if (!pmd_present(*pmd)) {
-		set_pmd(pmd, *pmd_k);
-		arch_flush_lazy_mmu_mode();
-	} else
-		BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
-	return pmd_k;
-}
-#endif
-
-#ifdef CONFIG_X86_64
-static const char errata93_warning[] =
-KERN_ERR "******* Your BIOS seems to not contain a fix for K8 errata #93\n"
-KERN_ERR "******* Working around it, but it may cause SEGVs or burn power.\n"
-KERN_ERR "******* Please consider a BIOS update.\n"
-KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
-#endif
-
-/* Workaround for K8 erratum #93 & buggy BIOS.
-   BIOS SMM functions are required to use a specific workaround
-   to avoid corruption of the 64bit RIP register on C stepping K8.
-   A lot of BIOS that didn't get tested properly miss this.
-   The OS sees this as a page fault with the upper 32bits of RIP cleared.
-   Try to work around it here.
-   Note we only handle faults in kernel here.
-   Does nothing for X86_32
- */
-static int is_errata93(struct pt_regs *regs, unsigned long address)
-{
-#ifdef CONFIG_X86_64
-	static int warned;
-	if (address != regs->ip)
-		return 0;
-	if ((address >> 32) != 0)
-		return 0;
-	address |= 0xffffffffUL << 32;
-	if ((address >= (u64)_stext && address <= (u64)_etext) ||
-	    (address >= MODULES_VADDR && address <= MODULES_END)) {
-		if (!warned) {
-			printk(errata93_warning);
-			warned = 1;
-		}
-		regs->ip = address;
-		return 1;
-	}
-#endif
-	return 0;
-}
-
-/*
- * Work around K8 erratum #100 K8 in compat mode occasionally jumps to illegal
- * addresses >4GB.  We catch this in the page fault handler because these
- * addresses are not reachable. Just detect this case and return.  Any code
- * segment in LDT is compatibility mode.
- */
-static int is_errata100(struct pt_regs *regs, unsigned long address)
-{
-#ifdef CONFIG_X86_64
-	if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) &&
-	    (address >> 32))
-		return 1;
-#endif
-	return 0;
-}
-
-void do_invalid_op(struct pt_regs *, unsigned long);
-
-static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
-{
-#ifdef CONFIG_X86_F00F_BUG
-	unsigned long nr;
-	/*
-	 * Pentium F0 0F C7 C8 bug workaround.
-	 */
-	if (boot_cpu_data.f00f_bug) {
-		nr = (address - idt_descr.address) >> 3;
-
-		if (nr == 6) {
-			do_invalid_op(regs, 0);
-			return 1;
-		}
-	}
-#endif
-	return 0;
-}
-
-static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
-			    unsigned long address)
-{
-#ifdef CONFIG_X86_32
-	if (!oops_may_print())
-		return;
-
-#ifdef CONFIG_X86_PAE
-	if (error_code & PF_INSTR) {
-		int level;
-		pte_t *pte = lookup_address(address, &level);
-
-		if (pte && pte_present(*pte) && !pte_exec(*pte))
-			printk(KERN_CRIT "kernel tried to execute "
-				"NX-protected page - exploit attempt? "
-				"(uid: %d)\n", current->uid);
-	}
-#endif
-	printk(KERN_ALERT "BUG: unable to handle kernel ");
-	if (address < PAGE_SIZE)
-		printk(KERN_CONT "NULL pointer dereference");
-	else
-		printk(KERN_CONT "paging request");
-	printk(KERN_CONT " at %08lx\n", address);
-
-	printk(KERN_ALERT "IP:");
-	printk_address(regs->ip, 1);
-	dump_pagetable(address);
-#else /* CONFIG_X86_64 */
-	printk(KERN_ALERT "BUG: unable to handle kernel ");
-	if (address < PAGE_SIZE)
-		printk(KERN_CONT "NULL pointer dereference");
-	else
-		printk(KERN_CONT "paging request");
-	printk(KERN_CONT " at %016lx\n", address);
-
-	printk(KERN_ALERT "IP:");
-	printk_address(regs->ip, 1);
-	dump_pagetable(address);
-#endif
-}
-
-#ifdef CONFIG_X86_64
-static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
-				 unsigned long error_code)
-{
-	unsigned long flags = oops_begin();
-	struct task_struct *tsk;
-
-	printk(KERN_ALERT "%s: Corrupted page table at address %lx\n",
-	       current->comm, address);
-	dump_pagetable(address);
-	tsk = current;
-	tsk->thread.cr2 = address;
-	tsk->thread.trap_no = 14;
-	tsk->thread.error_code = error_code;
-	if (__die("Bad pagetable", regs, error_code))
-		regs = NULL;
-	oops_end(flags, regs, SIGKILL);
-}
-#endif
-
-/*
- * X86_32
- * Handle a fault on the vmalloc or module mapping area
- *
- * X86_64
- * Handle a fault on the vmalloc area
- *
- * This assumes no large pages in there.
- */
-static int vmalloc_fault(unsigned long address)
-{
-#ifdef CONFIG_X86_32
-	unsigned long pgd_paddr;
-	pmd_t *pmd_k;
-	pte_t *pte_k;
-	/*
-	 * Synchronize this task's top level page-table
-	 * with the 'reference' page table.
-	 *
-	 * Do _not_ use "current" here. We might be inside
-	 * an interrupt in the middle of a task switch..
-	 */
-	pgd_paddr = read_cr3();
-	pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
-	if (!pmd_k)
-		return -1;
-	pte_k = pte_offset_kernel(pmd_k, address);
-	if (!pte_present(*pte_k))
-		return -1;
-	return 0;
-#else
-	pgd_t *pgd, *pgd_ref;
-	pud_t *pud, *pud_ref;
-	pmd_t *pmd, *pmd_ref;
-	pte_t *pte, *pte_ref;
-
-	/* Copy kernel mappings over when needed. This can also
-	   happen within a race in page table update. In the later
-	   case just flush. */
-
-	pgd = pgd_offset(current->mm ?: &init_mm, address);
-	pgd_ref = pgd_offset_k(address);
-	if (pgd_none(*pgd_ref))
-		return -1;
-	if (pgd_none(*pgd))
-		set_pgd(pgd, *pgd_ref);
-	else
-		BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
-
-	/* Below here mismatches are bugs because these lower tables
-	   are shared */
-
-	pud = pud_offset(pgd, address);
-	pud_ref = pud_offset(pgd_ref, address);
-	if (pud_none(*pud_ref))
-		return -1;
-	if (pud_none(*pud) || pud_page_vaddr(*pud) != pud_page_vaddr(*pud_ref))
-		BUG();
-	pmd = pmd_offset(pud, address);
-	pmd_ref = pmd_offset(pud_ref, address);
-	if (pmd_none(*pmd_ref))
-		return -1;
-	if (pmd_none(*pmd) || pmd_page(*pmd) != pmd_page(*pmd_ref))
-		BUG();
-	pte_ref = pte_offset_kernel(pmd_ref, address);
-	if (!pte_present(*pte_ref))
-		return -1;
-	pte = pte_offset_kernel(pmd, address);
-	/* Don't use pte_page here, because the mappings can point
-	   outside mem_map, and the NUMA hash lookup cannot handle
-	   that. */
-	if (!pte_present(*pte) || pte_pfn(*pte) != pte_pfn(*pte_ref))
-		BUG();
-	return 0;
-#endif
-}
-
-int show_unhandled_signals = 1;
-
-/*
- * This routine handles page faults.  It determines the address,
- * and the problem, and then passes it off to one of the appropriate
- * routines.
- */
-#ifdef CONFIG_X86_64
-asmlinkage
-#endif
-void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
-{
-	struct task_struct *tsk;
-	struct mm_struct *mm;
-	struct vm_area_struct *vma;
-	unsigned long address;
-	int write, si_code;
-	int fault;
-#ifdef CONFIG_X86_64
-	unsigned long flags;
-#endif
-
-	/*
-	 * We can fault from pretty much anywhere, with unknown IRQ state.
-	 */
-	trace_hardirqs_fixup();
-
-	tsk = current;
-	mm = tsk->mm;
-	prefetchw(&mm->mmap_sem);
-
-	/* get the address */
-	address = read_cr2();
-
-	si_code = SEGV_MAPERR;
-
-	if (notify_page_fault(regs))
-		return;
-
-	/*
-	 * We fault-in kernel-space virtual memory on-demand. The
-	 * 'reference' page table is init_mm.pgd.
-	 *
-	 * NOTE! We MUST NOT take any locks for this case. We may
-	 * be in an interrupt or a critical region, and should
-	 * only copy the information from the master page table,
-	 * nothing more.
-	 *
-	 * This verifies that the fault happens in kernel space
-	 * (error_code & 4) == 0, and that the fault was not a
-	 * protection error (error_code & 9) == 0.
-	 */
-#ifdef CONFIG_X86_32
-	if (unlikely(address >= TASK_SIZE)) {
-		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
-		    vmalloc_fault(address) >= 0)
-			return;
-		/*
-		 * Don't take the mm semaphore here. If we fixup a prefetch
-		 * fault we could otherwise deadlock.
-		 */
-		goto bad_area_nosemaphore;
-	}
-
-	/* It's safe to allow irq's after cr2 has been saved and the vmalloc
-	   fault has been handled. */
-	if (regs->flags & (X86_EFLAGS_IF|VM_MASK))
-		local_irq_enable();
-
-	/*
-	 * If we're in an interrupt, have no user context or are running in an
-	 * atomic region then we must not take the fault.
-	 */
-	if (in_atomic() || !mm)
-		goto bad_area_nosemaphore;
-#else /* CONFIG_X86_64 */
-	if (unlikely(address >= TASK_SIZE64)) {
-		/*
-		 * Don't check for the module range here: its PML4
-		 * is always initialized because it's shared with the main
-		 * kernel text. Only vmalloc may need PML4 syncups.
-		 */
-		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
-		      ((address >= VMALLOC_START && address < VMALLOC_END))) {
-			if (vmalloc_fault(address) >= 0)
-				return;
-		}
-		/*
-		 * Don't take the mm semaphore here. If we fixup a prefetch
-		 * fault we could otherwise deadlock.
-		 */
-		goto bad_area_nosemaphore;
-	}
-	if (likely(regs->flags & X86_EFLAGS_IF))
-		local_irq_enable();
-
-	if (unlikely(error_code & PF_RSVD))
-		pgtable_bad(address, regs, error_code);
-
-	/*
-	 * If we're in an interrupt, have no user context or are running in an
-	 * atomic region then we must not take the fault.
-	 */
-	if (unlikely(in_atomic() || !mm))
-		goto bad_area_nosemaphore;
-
-	/*
-	 * User-mode registers count as a user access even for any
-	 * potential system fault or CPU buglet.
-	 */
-	if (user_mode_vm(regs))
-		error_code |= PF_USER;
-again:
-#endif
-	/* When running in the kernel we expect faults to occur only to
-	 * addresses in user space.  All other faults represent errors in the
-	 * kernel and should generate an OOPS.  Unfortunately, in the case of an
-	 * erroneous fault occurring in a code path which already holds mmap_sem
-	 * we will deadlock attempting to validate the fault against the
-	 * address space.  Luckily the kernel only validly references user
-	 * space from well defined areas of code, which are listed in the
-	 * exceptions table.
-	 *
-	 * As the vast majority of faults will be valid we will only perform
-	 * the source reference check when there is a possibility of a deadlock.
-	 * Attempt to lock the address space, if we cannot we then validate the
-	 * source.  If this is invalid we can skip the address space check,
-	 * thus avoiding the deadlock.
-	 */
-	if (!down_read_trylock(&mm->mmap_sem)) {
-		if ((error_code & PF_USER) == 0 &&
-		    !search_exception_tables(regs->ip))
-			goto bad_area_nosemaphore;
-		down_read(&mm->mmap_sem);
-	}
-
-	vma = find_vma(mm, address);
-	if (!vma)
-		goto bad_area;
-#ifdef CONFIG_X86_32
-	if (vma->vm_start <= address)
-#else
-	if (likely(vma->vm_start <= address))
-#endif
-		goto good_area;
-	if (!(vma->vm_flags & VM_GROWSDOWN))
-		goto bad_area;
-	if (error_code & PF_USER) {
-		/*
-		 * Accessing the stack below %sp is always a bug.
-		 * The large cushion allows instructions like enter
-		 * and pusha to work.  ("enter $65535,$31" pushes
-		 * 32 pointers and then decrements %sp by 65535.)
-		 */
-		if (address + 65536 + 32 * sizeof(unsigned long) < regs->sp)
-			goto bad_area;
-	}
-	if (expand_stack(vma, address))
-		goto bad_area;
-/*
- * Ok, we have a good vm_area for this memory access, so
- * we can handle it..
- */
-good_area:
-	si_code = SEGV_ACCERR;
-	write = 0;
-	switch (error_code & (PF_PROT|PF_WRITE)) {
-	default:	/* 3: write, present */
-		/* fall through */
-	case PF_WRITE:		/* write, not present */
-		if (!(vma->vm_flags & VM_WRITE))
-			goto bad_area;
-		write++;
-		break;
-	case PF_PROT:		/* read, present */
-		goto bad_area;
-	case 0:			/* read, not present */
-		if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
-			goto bad_area;
-	}
-
-#ifdef CONFIG_X86_32
-survive:
-#endif
-	/*
-	 * If for any reason at all we couldn't handle the fault,
-	 * make sure we exit gracefully rather than endlessly redo
-	 * the fault.
-	 */
-	fault = handle_mm_fault(mm, vma, address, write);
-	if (unlikely(fault & VM_FAULT_ERROR)) {
-		if (fault & VM_FAULT_OOM)
-			goto out_of_memory;
-		else if (fault & VM_FAULT_SIGBUS)
-			goto do_sigbus;
-		BUG();
-	}
-	if (fault & VM_FAULT_MAJOR)
-		tsk->maj_flt++;
-	else
-		tsk->min_flt++;
-
-#ifdef CONFIG_X86_32
-	/*
-	 * Did it hit the DOS screen memory VA from vm86 mode?
-	 */
-	if (v8086_mode(regs)) {
-		unsigned long bit = (address - 0xA0000) >> PAGE_SHIFT;
-		if (bit < 32)
-			tsk->thread.screen_bitmap |= 1 << bit;
-	}
-#endif
-	up_read(&mm->mmap_sem);
-	return;
-
-/*
- * Something tried to access memory that isn't in our memory map..
- * Fix it, but check if it's kernel or user first..
- */
-bad_area:
-	up_read(&mm->mmap_sem);
-
-bad_area_nosemaphore:
-	/* User mode accesses just cause a SIGSEGV */
-	if (error_code & PF_USER) {
-		/*
-		 * It's possible to have interrupts off here.
-		 */
-		local_irq_enable();
-
-		/*
-		 * Valid to do another page fault here because this one came
-		 * from user space.
-		 */
-		if (is_prefetch(regs, address, error_code))
-			return;
-
-		if (is_errata100(regs, address))
-			return;
-
-		if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
-		    printk_ratelimit()) {
-			printk(
-#ifdef CONFIG_X86_32
-			"%s%s[%d]: segfault at %lx ip %08lx sp %08lx error %lx",
-#else
-			"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx",
-#endif
-			task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
-			tsk->comm, task_pid_nr(tsk), address, regs->ip,
-			regs->sp, error_code);
-			print_vma_addr(" in ", regs->ip);
-			printk("\n");
-		}
-
-		tsk->thread.cr2 = address;
-		/* Kernel addresses are always protection faults */
-		tsk->thread.error_code = error_code | (address >= TASK_SIZE);
-		tsk->thread.trap_no = 14;
-		force_sig_info_fault(SIGSEGV, si_code, address, tsk);
-		return;
-	}
-
-	if (is_f00f_bug(regs, address))
-		return;
-
-no_context:
-	/* Are we prepared to handle this kernel fault?  */
-	if (fixup_exception(regs))
-		return;
-
-	/*
-	 * X86_32
-	 * Valid to do another page fault here, because if this fault
-	 * had been triggered by is_prefetch fixup_exception would have
-	 * handled it.
-	 *
-	 * X86_64
-	 * Hall of shame of CPU/BIOS bugs.
-	 */
-	if (is_prefetch(regs, address, error_code))
-		return;
-
-	if (is_errata93(regs, address))
-		return;
-
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- */
-#ifdef CONFIG_X86_32
-	bust_spinlocks(1);
-
-	show_fault_oops(regs, error_code, address);
-
-	tsk->thread.cr2 = address;
-	tsk->thread.trap_no = 14;
-	tsk->thread.error_code = error_code;
-	die("Oops", regs, error_code);
-	bust_spinlocks(0);
-	do_exit(SIGKILL);
-#else /* CONFIG_X86_64 */
-	flags = oops_begin();
-
-	show_fault_oops(regs, error_code, address);
-
-	tsk->thread.cr2 = address;
-	tsk->thread.trap_no = 14;
-	tsk->thread.error_code = error_code;
-	if (__die("Oops", regs, error_code))
-		regs = NULL;
-	/* Executive summary in case the body of the oops scrolled away */
-	printk(KERN_EMERG "CR2: %016lx\n", address);
-	oops_end(flags, regs, SIGKILL);
-#endif
-
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
-out_of_memory:
-	up_read(&mm->mmap_sem);
-#ifdef CONFIG_X86_32
-	if (is_global_init(tsk)) {
-		yield();
-		down_read(&mm->mmap_sem);
-		goto survive;
-	}
-#else
-	if (is_global_init(current)) {
-		yield();
-		goto again;
-	}
-#endif
-	printk("VM: killing process %s\n", tsk->comm);
-	if (error_code & PF_USER)
-		do_group_exit(SIGKILL);
-	goto no_context;
-
-do_sigbus:
-	up_read(&mm->mmap_sem);
-
-	/* Kernel mode? Handle exceptions or die */
-	if (!(error_code & PF_USER))
-		goto no_context;
-#ifdef CONFIG_X86_32
-	/* User space => ok to do another page fault */
-	if (is_prefetch(regs, address, error_code))
-		return;
-#endif
-	tsk->thread.cr2 = address;
-	tsk->thread.error_code = error_code;
-	tsk->thread.trap_no = 14;
-	force_sig_info_fault(SIGBUS, BUS_ADRERR, address, tsk);
-}
-
-#ifdef CONFIG_X86_64
-DEFINE_SPINLOCK(pgd_lock);
-LIST_HEAD(pgd_list);
-#endif
-
-void vmalloc_sync_all(void)
-{
-#ifdef CONFIG_X86_32
-	/*
-	 * Note that races in the updates of insync and start aren't
-	 * problematic: insync can only get set bits added, and updates to
-	 * start are only improving performance (without affecting correctness
-	 * if undone).
-	 */
-	static DECLARE_BITMAP(insync, PTRS_PER_PGD);
-	static unsigned long start = TASK_SIZE;
-	unsigned long address;
-
-	if (SHARED_KERNEL_PMD)
-		return;
-
-	BUILD_BUG_ON(TASK_SIZE & ~PGDIR_MASK);
-	for (address = start; address >= TASK_SIZE; address += PGDIR_SIZE) {
-		if (!test_bit(pgd_index(address), insync)) {
-			unsigned long flags;
-			struct page *page;
-
-			spin_lock_irqsave(&pgd_lock, flags);
-			for (page = pgd_list; page; page =
-					(struct page *)page->index)
-				if (!vmalloc_sync_one(page_address(page),
-								address)) {
-					BUG_ON(page != pgd_list);
-					break;
-				}
-			spin_unlock_irqrestore(&pgd_lock, flags);
-			if (!page)
-				set_bit(pgd_index(address), insync);
-		}
-		if (address == start && test_bit(pgd_index(address), insync))
-			start = address + PGDIR_SIZE;
-	}
-#else /* CONFIG_X86_64 */
-	/*
-	 * Note that races in the updates of insync and start aren't
-	 * problematic: insync can only get set bits added, and updates to
-	 * start are only improving performance (without affecting correctness
-	 * if undone).
-	 */
-	static DECLARE_BITMAP(insync, PTRS_PER_PGD);
-	static unsigned long start = VMALLOC_START & PGDIR_MASK;
-	unsigned long address;
-
-	for (address = start; address <= VMALLOC_END; address += PGDIR_SIZE) {
-		if (!test_bit(pgd_index(address), insync)) {
-			const pgd_t *pgd_ref = pgd_offset_k(address);
-			struct page *page;
-
-			if (pgd_none(*pgd_ref))
-				continue;
-			spin_lock(&pgd_lock);
-			list_for_each_entry(page, &pgd_list, lru) {
-				pgd_t *pgd;
-				pgd = (pgd_t *)page_address(page) + pgd_index(address);
-				if (pgd_none(*pgd))
-					set_pgd(pgd, *pgd_ref);
-				else
-					BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
-			}
-			spin_unlock(&pgd_lock);
-			set_bit(pgd_index(address), insync);
-		}
-		if (address == start)
-			start = address + PGDIR_SIZE;
-	}
-	/* Check that there is no need to do the same for the modules area. */
-	BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL));
-	BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==
-				(__START_KERNEL & PGDIR_MASK)));
-#endif
-}
-- 
cgit v1.2.3-59-g8ed1b


From b406ac61e94875723540bd56e26f634afdeef489 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:34:11 +0100
Subject: x86: remove nx_enabled from fault.c

On !PAE 32-bit, _PAGE_NX will be 0, making is_prefetch always
return early.  The test is sufficient on PAE as __supported_pte_mask
is updated in the same places as nx_enabled in init_32.c which also
takes disable_nx into account.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 14a0c6e541de..99d273dbc758 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -92,18 +92,13 @@ static int is_prefetch(struct pt_regs *regs, unsigned long addr,
 	unsigned char *max_instr;
 
 #ifdef CONFIG_X86_32
-# ifdef CONFIG_X86_PAE
-	/* If it was a exec fault on NX page, ignore */
-	if (nx_enabled && (error_code & PF_INSTR))
+	if (!(__supported_pte_mask & _PAGE_NX))
 		return 0;
-# else
-	return 0;
-# endif
-#else /* CONFIG_X86_64 */
+#endif
+
 	/* If it was a exec fault on NX page, ignore */
 	if (error_code & PF_INSTR)
 		return 0;
-#endif
 
 	instr = (unsigned char *)convert_ip_to_linear(current, regs);
 	max_instr = instr + 15;
-- 
cgit v1.2.3-59-g8ed1b


From 5b727a3b0158a129827c21ce3bfb0ba997e8ddd0 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:34:11 +0100
Subject: x86: ignore spurious faults

When changing a kernel page from RO->RW, it's OK to leave stale TLB
entries around, since doing a global flush is expensive and they pose
no security problem.  They can, however, generate a spurious fault,
which we should catch and simply return from (which will have the
side-effect of reloading the TLB to the current PTE).

This can occur when running under Xen, because it frequently changes
kernel pages from RW->RO->RW to implement Xen's pagetable semantics.
It could also occur when using CONFIG_DEBUG_PAGEALLOC, since it avoids
doing a global TLB flush after changing page permissions.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 99d273dbc758..1c836527dde7 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -434,6 +434,51 @@ static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
 }
 #endif
 
+/*
+ * Handle a spurious fault caused by a stale TLB entry.  This allows
+ * us to lazily refresh the TLB when increasing the permissions of a
+ * kernel page (RO -> RW or NX -> X).  Doing it eagerly is very
+ * expensive since that implies doing a full cross-processor TLB
+ * flush, even if no stale TLB entries exist on other processors.
+ * There are no security implications to leaving a stale TLB when
+ * increasing the permissions on a page.
+ */
+static int spurious_fault(unsigned long address,
+			  unsigned long error_code)
+{
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte;
+
+	/* Reserved-bit violation or user access to kernel space? */
+	if (error_code & (PF_USER | PF_RSVD))
+		return 0;
+
+	pgd = init_mm.pgd + pgd_index(address);
+	if (!pgd_present(*pgd))
+		return 0;
+
+	pud = pud_offset(pgd, address);
+	if (!pud_present(*pud))
+		return 0;
+
+	pmd = pmd_offset(pud, address);
+	if (!pmd_present(*pmd))
+		return 0;
+
+	pte = pte_offset_kernel(pmd, address);
+	if (!pte_present(*pte))
+		return 0;
+
+	if ((error_code & PF_WRITE) && !pte_write(*pte))
+		return 0;
+	if ((error_code & PF_INSTR) && !pte_exec(*pte))
+		return 0;
+
+	return 1;
+}
+
 /*
  * X86_32
  * Handle a fault on the vmalloc or module mapping area
@@ -568,6 +613,11 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
 		    vmalloc_fault(address) >= 0)
 			return;
+
+		/* Can handle a stale RO->RW TLB */
+		if (spurious_fault(address, error_code))
+			return;
+
 		/*
 		 * Don't take the mm semaphore here. If we fixup a prefetch
 		 * fault we could otherwise deadlock.
@@ -598,6 +648,11 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 			if (vmalloc_fault(address) >= 0)
 				return;
 		}
+
+		/* Can handle a stale RO->RW TLB */
+		if (spurious_fault(address, error_code))
+			return;
+
 		/*
 		 * Don't take the mm semaphore here. If we fixup a prefetch
 		 * fault we could otherwise deadlock.
-- 
cgit v1.2.3-59-g8ed1b


From fd40d6e3188b12c59696d6cb4a6f26333814d66f Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Wed, 30 Jan 2008 13:34:11 +0100
Subject: x86: shrink some ifdefs in fault.c

The change from current to tsk in do_page_fault is safe as
this is set at the very beginning of the function.

Removes a likely() annotation from the 64-bit version, this
could have instead been added to 32-bit.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault.c | 43 ++++++++++++++-----------------------------
 1 file changed, 14 insertions(+), 29 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 1c836527dde7..72547a7e32c6 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -378,6 +378,7 @@ static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 #ifdef CONFIG_X86_32
 	if (!oops_may_print())
 		return;
+#endif
 
 #ifdef CONFIG_X86_PAE
 	if (error_code & PF_INSTR) {
@@ -390,28 +391,20 @@ static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 				"(uid: %d)\n", current->uid);
 	}
 #endif
-	printk(KERN_ALERT "BUG: unable to handle kernel ");
-	if (address < PAGE_SIZE)
-		printk(KERN_CONT "NULL pointer dereference");
-	else
-		printk(KERN_CONT "paging request");
-	printk(KERN_CONT " at %08lx\n", address);
 
-	printk(KERN_ALERT "IP:");
-	printk_address(regs->ip, 1);
-	dump_pagetable(address);
-#else /* CONFIG_X86_64 */
 	printk(KERN_ALERT "BUG: unable to handle kernel ");
 	if (address < PAGE_SIZE)
 		printk(KERN_CONT "NULL pointer dereference");
 	else
 		printk(KERN_CONT "paging request");
+#ifdef CONFIG_X86_32
+	printk(KERN_CONT " at %08lx\n", address);
+#else
 	printk(KERN_CONT " at %016lx\n", address);
-
+#endif
 	printk(KERN_ALERT "IP:");
 	printk_address(regs->ip, 1);
 	dump_pagetable(address);
-#endif
 }
 
 #ifdef CONFIG_X86_64
@@ -705,11 +698,7 @@ again:
 	vma = find_vma(mm, address);
 	if (!vma)
 		goto bad_area;
-#ifdef CONFIG_X86_32
 	if (vma->vm_start <= address)
-#else
-	if (likely(vma->vm_start <= address))
-#endif
 		goto good_area;
 	if (!(vma->vm_flags & VM_GROWSDOWN))
 		goto bad_area;
@@ -858,23 +847,21 @@ no_context:
  */
 #ifdef CONFIG_X86_32
 	bust_spinlocks(1);
+#else
+	flags = oops_begin();
+#endif
 
 	show_fault_oops(regs, error_code, address);
 
 	tsk->thread.cr2 = address;
 	tsk->thread.trap_no = 14;
 	tsk->thread.error_code = error_code;
+
+#ifdef CONFIG_X86_32
 	die("Oops", regs, error_code);
 	bust_spinlocks(0);
 	do_exit(SIGKILL);
-#else /* CONFIG_X86_64 */
-	flags = oops_begin();
-
-	show_fault_oops(regs, error_code, address);
-
-	tsk->thread.cr2 = address;
-	tsk->thread.trap_no = 14;
-	tsk->thread.error_code = error_code;
+#else
 	if (__die("Oops", regs, error_code))
 		regs = NULL;
 	/* Executive summary in case the body of the oops scrolled away */
@@ -888,18 +875,16 @@ no_context:
  */
 out_of_memory:
 	up_read(&mm->mmap_sem);
-#ifdef CONFIG_X86_32
 	if (is_global_init(tsk)) {
 		yield();
+#ifdef CONFIG_X86_32
 		down_read(&mm->mmap_sem);
 		goto survive;
-	}
 #else
-	if (is_global_init(current)) {
-		yield();
 		goto again;
-	}
 #endif
+	}
+
 	printk("VM: killing process %s\n", tsk->comm);
 	if (error_code & PF_USER)
 		do_group_exit(SIGKILL);
-- 
cgit v1.2.3-59-g8ed1b


From 6194ba6ff6ccf8d5c54c857600843c67aa82c407 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:34:11 +0100
Subject: x86: don't special-case pmd allocations as much

In x86 PAE mode, stop treating pmds as a special case.  Previously
they were always allocated and freed with the pgd.  The modifies the
code to be the same as 64-bit mode, where they are allocated on
demand.

This is a step on the way to unifying 32/64-bit pagetable allocation
as much as possible.

There is a complicating wart, however.  When you install a new
reference to a pmd in the pgd, the processor isn't guaranteed to see
it unless you reload cr3.  Since reloading cr3 also has the
side-effect of flushing the tlb, this is an expense that we want to
avoid whereever possible.

This patch simply avoids reloading cr3 unless the update is to the
current pagetable.  Later patches will optimise this further.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: William Irwin <wli@holomorphy.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/init_32.c            | 13 --------
 arch/x86/mm/pgtable_32.c         | 68 ----------------------------------------
 include/asm-x86/pgalloc_32.h     | 22 ++++++++++---
 include/asm-x86/pgtable-3level.h | 39 ++++++++++++++++-------
 include/asm-x86/pgtable_32.h     |  3 +-
 5 files changed, 47 insertions(+), 98 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 02d269c07b96..da524fb22422 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -704,19 +704,6 @@ int arch_add_memory(int nid, u64 start, u64 size)
 }
 #endif
 
-struct kmem_cache *pmd_cache;
-
-void __init pgtable_cache_init(void)
-{
-	if (PTRS_PER_PMD > 1) {
-		pmd_cache = kmem_cache_create("pmd",
-					      PTRS_PER_PMD*sizeof(pmd_t),
-					      PTRS_PER_PMD*sizeof(pmd_t),
-					      SLAB_PANIC,
-					      pmd_ctor);
-	}
-}
-
 /*
  * This function cannot be __init, since exceptions don't work in that
  * section.  Put this after the callers, so that it cannot be inlined.
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index 3a6c9200058d..5ca3552474ae 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -195,11 +195,6 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
 	return pte;
 }
 
-void pmd_ctor(struct kmem_cache *cache, void *pmd)
-{
-	memset(pmd, 0, PTRS_PER_PMD*sizeof(pmd_t));
-}
-
 /*
  * List of all pgd's needed for non-PAE so it can invalidate entries
  * in both cached and uncached pgd's; not needed for PAE since the
@@ -285,7 +280,6 @@ static void pgd_dtor(void *pgd)
 	if (SHARED_KERNEL_PMD)
 		return;
 
-	paravirt_release_pd(__pa(pgd) >> PAGE_SHIFT);
 	spin_lock_irqsave(&pgd_lock, flags);
 	pgd_list_del(pgd);
 	spin_unlock_irqrestore(&pgd_lock, flags);
@@ -367,84 +361,22 @@ static void pgd_mop_up_pmds(pgd_t *pgd)
 }
 #endif	/* CONFIG_X86_PAE */
 
-/* If we allocate a pmd for part of the kernel address space, then
-   make sure its initialized with the appropriate kernel mappings.
-   Otherwise use a cached zeroed pmd.  */
-static pmd_t *pmd_cache_alloc(int idx)
-{
-	pmd_t *pmd;
-
-	if (idx >= USER_PTRS_PER_PGD) {
-		pmd = (pmd_t *)__get_free_page(GFP_KERNEL);
-
-		if (pmd)
-			memcpy(pmd,
-			       (void *)pgd_page_vaddr(swapper_pg_dir[idx]),
-			       sizeof(pmd_t) * PTRS_PER_PMD);
-	} else
-		pmd = kmem_cache_alloc(pmd_cache, GFP_KERNEL);
-
-	return pmd;
-}
-
-static void pmd_cache_free(pmd_t *pmd, int idx)
-{
-	if (idx >= USER_PTRS_PER_PGD)
-		free_page((unsigned long)pmd);
-	else
-		kmem_cache_free(pmd_cache, pmd);
-}
-
 pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-	int i;
 	pgd_t *pgd = quicklist_alloc(0, GFP_KERNEL, pgd_ctor);
 
-	if (PTRS_PER_PMD == 1 || !pgd)
-		return pgd;
-
 	mm->pgd = pgd;		/* so that alloc_pd can use it */
 
- 	for (i = 0; i < UNSHARED_PTRS_PER_PGD; ++i) {
-		pmd_t *pmd = pmd_cache_alloc(i);
-
-		if (!pmd)
-			goto out_oom;
-
-		paravirt_alloc_pd(mm, __pa(pmd) >> PAGE_SHIFT);
-		set_pgd(&pgd[i], __pgd(1 + __pa(pmd)));
-	}
 	if (pgd && !pgd_prepopulate_pmd(mm, pgd)) {
 		quicklist_free(0, pgd_dtor, pgd);
 		pgd = NULL;
 	}
 
 	return pgd;
-
-out_oom:
-	for (i--; i >= 0; i--) {
-		pgd_t pgdent = pgd[i];
-		void* pmd = (void *)__va(pgd_val(pgdent)-1);
-		paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT);
-		pmd_cache_free(pmd, i);
-	}
-	quicklist_free(0, pgd_dtor, pgd);
-	return NULL;
 }
 
 void pgd_free(pgd_t *pgd)
 {
-	int i;
-
-	/* in the PAE case user pgd entries are overwritten before usage */
-	if (PTRS_PER_PMD > 1)
-		for (i = 0; i < UNSHARED_PTRS_PER_PGD; ++i) {
-			pgd_t pgdent = pgd[i];
-			void* pmd = (void *)__va(pgd_val(pgdent)-1);
-			paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT);
-			pmd_cache_free(pmd, i);
-		}
-	/* in the non-PAE case, free_pgtables() clears user pgd entries */
 	pgd_mop_up_pmds(pgd);
 	quicklist_free(0, pgd_dtor, pgd);
 }
diff --git a/include/asm-x86/pgalloc_32.h b/include/asm-x86/pgalloc_32.h
index 3482c3427897..0caa37a9a25f 100644
--- a/include/asm-x86/pgalloc_32.h
+++ b/include/asm-x86/pgalloc_32.h
@@ -63,21 +63,35 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
  */
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
-	BUG();
-	return (pmd_t *)2;
+	return (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
 }
 
 static inline void pmd_free(pmd_t *pmd)
 {
+	BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
+	free_page((unsigned long)pmd);
 }
 
 static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
 {
+	paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT);
+	tlb_remove_page(tlb, virt_to_page(pmd));
 }
 
-static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+static inline void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
 {
-	BUG();
+	paravirt_alloc_pd(mm, __pa(pmd) >> PAGE_SHIFT);
+
+	/* Note: almost everything apart from _PAGE_PRESENT is
+	   reserved at the pmd (PDPT) level. */
+	set_pud(pudp, __pud(__pa(pmd) | _PAGE_PRESENT));
+
+	/*
+	 * Pentium-II erratum A13: in PAE mode we explicitly have to flush
+	 * the TLB via cr3 if the top-level pgd is changed...
+	 */
+	if (mm == current->active_mm)
+		write_cr3(read_cr3());
 }
 #endif	/* CONFIG_X86_PAE */
 
diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h
index 62a1ffbc8784..ed4c6f0e57ec 100644
--- a/include/asm-x86/pgtable-3level.h
+++ b/include/asm-x86/pgtable-3level.h
@@ -15,9 +15,19 @@
 #define pgd_ERROR(e) \
 	printk("%s:%d: bad pgd %p(%016Lx).\n", __FILE__, __LINE__, &(e), pgd_val(e))
 
-#define pud_none(pud)				0
-#define pud_bad(pud)				0
-#define pud_present(pud)			1
+
+static inline int pud_none(pud_t pud)
+{
+	return pud_val(pud) == 0;
+}
+static inline int pud_bad(pud_t pud)
+{
+	return (pud_val(pud) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER)) != 0;
+}
+static inline int pud_present(pud_t pud)
+{
+	return pud_val(pud) & _PAGE_PRESENT;
+}
 
 /* Rules for using set_pte: the pte being assigned *must* be
  * either not present or in a state where the hardware will
@@ -58,7 +68,7 @@ static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
 }
 static inline void native_set_pud(pud_t *pudp, pud_t pud)
 {
-	*pudp = pud;
+	set_64bit((unsigned long long *)(pudp),native_pud_val(pud));
 }
 
 /*
@@ -81,13 +91,20 @@ static inline void native_pmd_clear(pmd_t *pmd)
 	*(tmp + 1) = 0;
 }
 
-/*
- * Pentium-II erratum A13: in PAE mode we explicitly have to flush
- * the TLB via cr3 if the top-level pgd is changed...
- * We do not let the generic code free and clear pgd entries due to
- * this erratum.
- */
-static inline void pud_clear (pud_t * pud) { }
+static inline void pud_clear(pud_t *pudp)
+{
+	set_pud(pudp, __pud(0));
+
+	/*
+	 * Pentium-II erratum A13: in PAE mode we explicitly have to flush
+	 * the TLB via cr3 if the top-level pgd is changed...
+	 *
+	 * XXX I don't think we need to worry about this here, since
+	 * when clearing the pud, the calling code needs to flush the
+	 * tlb anyway.  But do it now for safety's sake. - jsgf
+	 */
+	write_cr3(read_cr3());
+}
 
 #define pud_page(pud) \
 ((struct page *) __va(pud_val(pud) & PAGE_MASK))
diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h
index ca7b150ca8b7..7b61cb5989b0 100644
--- a/include/asm-x86/pgtable_32.h
+++ b/include/asm-x86/pgtable_32.h
@@ -31,8 +31,7 @@ extern spinlock_t pgd_lock;
 extern struct page *pgd_list;
 void check_pgt_cache(void);
 
-void pmd_ctor(struct kmem_cache *, void *);
-void pgtable_cache_init(void);
+static inline void pgtable_cache_init(void) {}
 void paging_init(void);
 
 
-- 
cgit v1.2.3-59-g8ed1b


From f212ec4b7b4d84290f12c9c0416cdea283bf5f40 Mon Sep 17 00:00:00 2001
From: Bernhard Kaindl <bk@suse.de>
Date: Wed, 30 Jan 2008 13:34:11 +0100
Subject: x86: early boot debugging via FireWire (ohci1394_dma=early)

This patch adds a new configuration option, which adds support for a new
early_param which gets checked in arch/x86/kernel/setup_{32,64}.c:setup_arch()
to decide wether OHCI-1394 FireWire controllers should be initialized and
enabled for physical DMA access to allow remote debugging of early problems
like issues ACPI or other subsystems which are executed very early.

If the config option is not enabled, no code is changed, and if the boot
paramenter is not given, no new code is executed, and independent of that,
all new code is freed after boot, so the config option can be even enabled
in standard, non-debug kernels.

With specialized tools, it is then possible to get debugging information
from machines which have no serial ports (notebooks) such as the printk
buffer contents, or any data which can be referenced from global pointers,
if it is stored below the 4GB limit and even memory dumps of of the physical
RAM region below the 4GB limit can be taken without any cooperation from the
CPU of the host, so the machine can be crashed early, it does not matter.

In the extreme, even kernel debuggers can be accessed in this way. I wrote
a small kgdb module and an accompanying gdb stub for FireWire which allows
to gdb to talk to kgdb using remote remory reads and writes over FireWire.

An version of the gdb stub fore FireWire is able to read all global data
from a system which is running a a normal kernel without any kernel debugger,
without any interruption or support of the system's CPU. That way, e.g. the
task struct and so on can be read and even manipulated when the physical DMA
access is granted.

A HOWTO is included in this patch, in Documentation/debugging-via-ohci1394.txt
and I've put a copy online at
ftp://ftp.suse.de/private/bk/firewire/docs/debugging-via-ohci1394.txt

It also has links to all the tools which are available to make use of it
another copy of it is online at:
ftp://ftp.suse.de/private/bk/firewire/kernel/ohci1394_dma_early-v2.diff

Signed-Off-By: Bernhard Kaindl <bk@suse.de>
Tested-By: Thomas Renninger <trenn@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/debugging-via-ohci1394.txt | 179 +++++++++++++++++++
 arch/x86/kernel/setup_32.c               |  11 ++
 arch/x86/kernel/setup_64.c               |  11 ++
 drivers/Makefile                         |   2 +-
 drivers/ieee1394/Makefile                |   1 +
 drivers/ieee1394/init_ohci1394_dma.c     | 285 +++++++++++++++++++++++++++++++
 include/asm-x86/fixmap_32.h              |   3 +
 include/asm-x86/fixmap_64.h              |   3 +
 include/linux/init_ohci1394_dma.h        |   4 +
 lib/Kconfig.debug                        |  28 +++
 10 files changed, 526 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/debugging-via-ohci1394.txt
 create mode 100644 drivers/ieee1394/init_ohci1394_dma.c
 create mode 100644 include/linux/init_ohci1394_dma.h

(limited to 'arch')

diff --git a/Documentation/debugging-via-ohci1394.txt b/Documentation/debugging-via-ohci1394.txt
new file mode 100644
index 000000000000..de4804e8b396
--- /dev/null
+++ b/Documentation/debugging-via-ohci1394.txt
@@ -0,0 +1,179 @@
+
+  Using physical DMA provided by OHCI-1394 FireWire controllers for debugging
+  ---------------------------------------------------------------------------
+
+Introduction
+------------
+
+Basically all FireWire controllers which are in use today are compliant
+to the OHCI-1394 specification which defines the controller to be a PCI
+bus master which uses DMA to offload data transfers from the CPU and has
+a "Physical Response Unit" which executes specific requests by employing
+PCI-Bus master DMA after applying filters defined by the OHCI-1394 driver.
+
+Once properly configured, remote machines can send these requests to
+ask the OHCI-1394 controller to perform read and write requests on
+physical system memory and, for read requests, send the result of
+the physical memory read back to the requester.
+
+With that, it is possible to debug issues by reading interesting memory
+locations such as buffers like the printk buffer or the process table.
+
+Retrieving a full system memory dump is also possible over the FireWire,
+using data transfer rates in the order of 10MB/s or more.
+
+Memory access is currently limited to the low 4G of physical address
+space which can be a problem on IA64 machines where memory is located
+mostly above that limit, but it is rarely a problem on more common
+hardware such as hardware based on x86, x86-64 and PowerPC.
+
+Together with a early initialization of the OHCI-1394 controller for debugging,
+this facility proved most useful for examining long debugs logs in the printk
+buffer on to debug early boot problems in areas like ACPI where the system
+fails to boot and other means for debugging (serial port) are either not
+available (notebooks) or too slow for extensive debug information (like ACPI).
+
+Drivers
+-------
+
+The OHCI-1394 drivers in drivers/firewire and drivers/ieee1394 initialize
+the OHCI-1394 controllers to a working state and can be used to enable
+physical DMA. By default you only have to load the driver, and physical
+DMA access will be granted to all remote nodes, but it can be turned off
+when using the ohci1394 driver.
+
+Because these drivers depend on the PCI enumeration to be completed, an
+initialization routine which can runs pretty early (long before console_init(),
+which makes the printk buffer appear on the console can be called) was written.
+
+To activate it, enable CONFIG_PROVIDE_OHCI1394_DMA_INIT (Kernel hacking menu:
+Provide code for enabling DMA over FireWire early on boot) and pass the
+parameter "ohci1394_dma=early" to the recompiled kernel on boot.
+
+Tools
+-----
+
+firescope - Originally developed by Benjamin Herrenschmidt, Andi Kleen ported
+it from PowerPC to x86 and x86_64 and added functionality, firescope can now
+be used to view the printk buffer of a remote machine, even with live update.
+
+Bernhard Kaindl enhanced firescope to support accessing 64-bit machines
+from 32-bit firescope and vice versa:
+- ftp://ftp.suse.de/private/bk/firewire/tools/firescope-0.2.2.tar.bz2
+
+and he implemented fast system dump (alpha version - read README.txt):
+- ftp://ftp.suse.de/private/bk/firewire/tools/firedump-0.1.tar.bz2
+
+There is also a gdb proxy for firewire which allows to use gdb to access
+data which can be referenced from symbols found by gdb in vmlinux:
+- ftp://ftp.suse.de/private/bk/firewire/tools/fireproxy-0.33.tar.bz2
+
+The latest version of this gdb proxy (fireproxy-0.34) can communicate (not
+yet stable) with kgdb over an memory-based communication module (kgdbom).
+
+Getting Started
+---------------
+
+The OHCI-1394 specification regulates that the OHCI-1394 controller must
+disable all physical DMA on each bus reset.
+
+This means that if you want to debug an issue in a system state where
+interrupts are disabled and where no polling of the OHCI-1394 controller
+for bus resets takes place, you have to establish any FireWire cable
+connections and fully initialize all FireWire hardware __before__ the
+system enters such state.
+
+Step-by-step instructions for using firescope with early OHCI initialization:
+
+1) Verify that your hardware is supported:
+
+   Load the ohci1394 or the fw-ohci module and check your kernel logs.
+   You should see a line similar to
+
+   ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[18]  MMIO=[fe9ff800-fe9fffff]
+   ... Max Packet=[2048]  IR/IT contexts=[4/8]
+
+   when loading the driver. If you have no supported controller, many PCI,
+   CardBus and even some Express cards which are fully compliant to OHCI-1394
+   specification are available. If it requires no driver for Windows operating
+   systems, it most likely is. Only specialized shops have cards which are not
+   compliant, they are based on TI PCILynx chips and require drivers for Win-
+   dows operating systems.
+
+2) Establish a working FireWire cable connection:
+
+   Any FireWire cable, as long at it provides electrically and mechanically
+   stable connection and has matching connectors (there are small 4-pin and
+   large 6-pin FireWire ports) will do.
+
+   If an driver is running on both machines you should see a line like
+
+   ieee1394: Node added: ID:BUS[0-01:1023]  GUID[0090270001b84bba]
+
+   on both machines in the kernel log when the cable is plugged in
+   and connects the two machines.
+
+3) Test physical DMA using firescope:
+
+   On the debug host,
+	- load the raw1394 module,
+	- make sure that /dev/raw1394 is accessible,
+   then start firescope:
+
+	$ firescope
+	Port 0 (ohci1394) opened, 2 nodes detected
+
+	FireScope
+	---------
+	Target : <unspecified>
+	Gen    : 1
+	[Ctrl-T] choose target
+	[Ctrl-H] this menu
+	[Ctrl-Q] quit
+
+    ------> Press Ctrl-T now, the output should be similar to:
+
+	2 nodes available, local node is: 0
+	 0: ffc0, uuid: 00000000 00000000 [LOCAL]
+	 1: ffc1, uuid: 00279000 ba4bb801
+
+   Besides the [LOCAL] node, it must show another node without error message.
+
+4) Prepare for debugging with early OHCI-1394 initialization:
+
+   4.1) Kernel compilation and installation on debug target
+
+   Compile the kernel to be debugged with CONFIG_PROVIDE_OHCI1394_DMA_INIT
+   (Kernel hacking: Provide code for enabling DMA over FireWire early on boot)
+   enabled and install it on the machine to be debugged (debug target).
+
+   4.2) Transfer the System.map of the debugged kernel to the debug host
+
+   Copy the System.map of the kernel be debugged to the debug host (the host
+   which is connected to the debugged machine over the FireWire cable).
+
+5) Retrieving the printk buffer contents:
+
+   With the FireWire cable connected, the OHCI-1394 driver on the debugging
+   host loaded, reboot the debugged machine, booting the kernel which has
+   CONFIG_PROVIDE_OHCI1394_DMA_INIT enabled, with the option ohci1394_dma=early.
+
+   Then, on the debugging host, run firescope, for example by using -A:
+
+	firescope -A System.map-of-debug-target-kernel
+
+   Note: -A automatically attaches to the first non-local node. It only works
+   reliably if only connected two machines are connected using FireWire.
+
+   After having attached to the debug target, press Ctrl-D to view the
+   complete printk buffer or Ctrl-U to enter auto update mode and get an
+   updated live view of recent kernel messages logged on the debug target.
+
+   Call "firescope -h" to get more information on firescope's options.
+
+Notes
+-----
+Documentation and specifications: ftp://ftp.suse.de/private/bk/firewire/docs
+
+FireWire is a trademark of Apple Inc. - for more information please refer to:
+http://en.wikipedia.org/wiki/FireWire
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 9c0ef4945a58..62adc5f20be5 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -45,6 +45,7 @@
 #include <linux/dmi.h>
 #include <linux/pfn.h>
 #include <linux/pci.h>
+#include <linux/init_ohci1394_dma.h>
 
 #include <video/edid.h>
 
@@ -787,6 +788,16 @@ void __init setup_arch(char **cmdline_p)
 	smp_alloc_memory(); /* AP processor realmode stacks in low memory*/
 #endif
 	paging_init();
+
+	/*
+	 * NOTE: On x86-32, only from this point on, fixmaps are ready for use.
+	 */
+
+#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
+	if (init_ohci1394_dma_early)
+		init_ohci1394_dma_on_all_controllers();
+#endif
+
 	remapped_pgdat_init();
 	sparse_init();
 	zone_sizes_init();
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 697533e86822..77fb87bf6e5a 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -41,6 +41,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/ctype.h>
 #include <linux/uaccess.h>
+#include <linux/init_ohci1394_dma.h>
 
 #include <asm/mtrr.h>
 #include <asm/uaccess.h>
@@ -253,6 +254,11 @@ void __attribute__((weak)) __init memory_setup(void)
        machine_specific_memory_setup();
 }
 
+/*
+ * setup_arch - architecture-specific boot-time initializations
+ *
+ * Note: On x86_64, fixmaps are ready for use even before this is called.
+ */
 void __init setup_arch(char **cmdline_p)
 {
 	unsigned i;
@@ -302,6 +308,11 @@ void __init setup_arch(char **cmdline_p)
 
 	parse_early_param();
 
+#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
+	if (init_ohci1394_dma_early)
+		init_ohci1394_dma_on_all_controllers();
+#endif
+
 	finish_e820_parsing();
 
 	early_gart_iommu_check();
diff --git a/drivers/Makefile b/drivers/Makefile
index 8cb37e3557d4..d92d4d82d001 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -38,7 +38,7 @@ obj-$(CONFIG_SCSI)		+= scsi/
 obj-$(CONFIG_ATA)		+= ata/
 obj-$(CONFIG_FUSION)		+= message/
 obj-$(CONFIG_FIREWIRE)		+= firewire/
-obj-$(CONFIG_IEEE1394)		+= ieee1394/
+obj-y				+= ieee1394/
 obj-$(CONFIG_UIO)		+= uio/
 obj-y				+= cdrom/
 obj-y				+= auxdisplay/
diff --git a/drivers/ieee1394/Makefile b/drivers/ieee1394/Makefile
index 489c133664d5..1f8153b57503 100644
--- a/drivers/ieee1394/Makefile
+++ b/drivers/ieee1394/Makefile
@@ -15,3 +15,4 @@ obj-$(CONFIG_IEEE1394_SBP2) += sbp2.o
 obj-$(CONFIG_IEEE1394_DV1394) += dv1394.o
 obj-$(CONFIG_IEEE1394_ETH1394) += eth1394.o
 
+obj-$(CONFIG_PROVIDE_OHCI1394_DMA_INIT) += init_ohci1394_dma.o
diff --git a/drivers/ieee1394/init_ohci1394_dma.c b/drivers/ieee1394/init_ohci1394_dma.c
new file mode 100644
index 000000000000..ddaab6eb8ace
--- /dev/null
+++ b/drivers/ieee1394/init_ohci1394_dma.c
@@ -0,0 +1,285 @@
+/*
+ * init_ohci1394_dma.c - Initializes physical DMA on all OHCI 1394 controllers
+ *
+ * Copyright (C) 2006-2007      Bernhard Kaindl <bk@suse.de>
+ *
+ * Derived from drivers/ieee1394/ohci1394.c and arch/x86/kernel/early-quirks.c
+ * this file has functions to:
+ * - scan the PCI very early on boot for all OHCI 1394-compliant controllers
+ * - reset and initialize them and make them join the IEEE1394 bus and
+ * - enable physical DMA on them to allow remote debugging
+ *
+ * All code and data is marked as __init and __initdata, respective as
+ * during boot, all OHCI1394 controllers may be claimed by the firewire
+ * stack and at this point, this code should not touch them anymore.
+ *
+ * To use physical DMA after the initialization of the firewire stack,
+ * be sure that the stack enables it and (re-)attach after the bus reset
+ * which may be caused by the firewire stack initialization.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/interrupt.h>	/* for ohci1394.h */
+#include <linux/delay.h>
+#include <linux/pci.h>		/* for PCI defines */
+#include <linux/init_ohci1394_dma.h>
+#include <asm/pci-direct.h>	/* for direct PCI config space access */
+#include <asm/fixmap.h>
+
+#include "ieee1394_types.h"
+#include "ohci1394.h"
+
+int __initdata init_ohci1394_dma_early;
+
+/* Reads a PHY register of an OHCI-1394 controller */
+static inline u8 __init get_phy_reg(struct ti_ohci *ohci, u8 addr)
+{
+	int i;
+	quadlet_t r;
+
+	reg_write(ohci, OHCI1394_PhyControl, (addr << 8) | 0x00008000);
+
+	for (i = 0; i < OHCI_LOOP_COUNT; i++) {
+		if (reg_read(ohci, OHCI1394_PhyControl) & 0x80000000)
+			break;
+		mdelay(1);
+	}
+	r = reg_read(ohci, OHCI1394_PhyControl);
+
+	return (r & 0x00ff0000) >> 16;
+}
+
+/* Writes to a PHY register of an OHCI-1394 controller */
+static inline void __init set_phy_reg(struct ti_ohci *ohci, u8 addr, u8 data)
+{
+	int i;
+
+	reg_write(ohci, OHCI1394_PhyControl, (addr << 8) | data | 0x00004000);
+
+	for (i = 0; i < OHCI_LOOP_COUNT; i++) {
+		u32 r = reg_read(ohci, OHCI1394_PhyControl);
+		if (!(r & 0x00004000))
+			break;
+		mdelay(1);
+	}
+}
+
+/* Resets an OHCI-1394 controller (for sane state before initialization) */
+static inline void __init init_ohci1394_soft_reset(struct ti_ohci *ohci) {
+	int i;
+
+	reg_write(ohci, OHCI1394_HCControlSet, OHCI1394_HCControl_softReset);
+
+	for (i = 0; i < OHCI_LOOP_COUNT; i++) {
+		if (!(reg_read(ohci, OHCI1394_HCControlSet)
+				   & OHCI1394_HCControl_softReset))
+			break;
+		mdelay(1);
+	}
+}
+
+/* Basic OHCI-1394 register and port inititalization */
+static inline void __init init_ohci1394_initialize(struct ti_ohci *ohci)
+{
+	quadlet_t bus_options;
+	int num_ports, i;
+
+	/* Put some defaults to these undefined bus options */
+	bus_options = reg_read(ohci, OHCI1394_BusOptions);
+	bus_options |=  0x60000000; /* Enable CMC and ISC */
+	bus_options &= ~0x00ff0000; /* XXX: Set cyc_clk_acc to zero for now */
+	bus_options &= ~0x18000000; /* Disable PMC and BMC */
+	reg_write(ohci, OHCI1394_BusOptions, bus_options);
+
+	/* Set the bus number */
+	reg_write(ohci, OHCI1394_NodeID, 0x0000ffc0);
+
+	/* Enable posted writes */
+	reg_write(ohci, OHCI1394_HCControlSet,
+			OHCI1394_HCControl_postedWriteEnable);
+
+	/* Clear link control register */
+	reg_write(ohci, OHCI1394_LinkControlClear, 0xffffffff);
+
+	/* enable phys */
+	reg_write(ohci, OHCI1394_LinkControlSet,
+			OHCI1394_LinkControl_RcvPhyPkt);
+
+	/* Don't accept phy packets into AR request context */
+	reg_write(ohci, OHCI1394_LinkControlClear, 0x00000400);
+
+	/* Clear the Isochonouys interrupt masks */
+	reg_write(ohci, OHCI1394_IsoRecvIntMaskClear, 0xffffffff);
+	reg_write(ohci, OHCI1394_IsoRecvIntEventClear, 0xffffffff);
+	reg_write(ohci, OHCI1394_IsoXmitIntMaskClear, 0xffffffff);
+	reg_write(ohci, OHCI1394_IsoXmitIntEventClear, 0xffffffff);
+
+	/* Accept asyncronous transfer requests from all nodes for now */
+	reg_write(ohci,OHCI1394_AsReqFilterHiSet, 0x80000000);
+
+	/* Specify asyncronous transfer retries */
+	reg_write(ohci, OHCI1394_ATRetries,
+		  OHCI1394_MAX_AT_REQ_RETRIES |
+		  (OHCI1394_MAX_AT_RESP_RETRIES<<4) |
+		  (OHCI1394_MAX_PHYS_RESP_RETRIES<<8));
+
+	/* We don't want hardware swapping */
+	reg_write(ohci, OHCI1394_HCControlClear, OHCI1394_HCControl_noByteSwap);
+
+	/* Enable link */
+	reg_write(ohci, OHCI1394_HCControlSet, OHCI1394_HCControl_linkEnable);
+
+	/* If anything is connected to a port, make sure it is enabled */
+	num_ports = get_phy_reg(ohci, 2) & 0xf;
+	for (i = 0; i < num_ports; i++) {
+		unsigned int status;
+
+		set_phy_reg(ohci, 7, i);
+		status = get_phy_reg(ohci, 8);
+
+		if (status & 0x20)
+			set_phy_reg(ohci, 8, status & ~1);
+	}
+}
+
+/**
+ * init_ohci1394_wait_for_busresets - wait until bus resets are completed
+ *
+ * OHCI1394 initialization itself and any device going on- or offline
+ * and any cable issue cause a IEEE1394 bus reset. The OHCI1394 spec
+ * specifies that physical DMA is disabled on each bus reset and it
+ * has to be enabled after each bus reset when needed. We resort
+ * to polling here because on early boot, we have no interrupts.
+ */
+static inline void __init init_ohci1394_wait_for_busresets(struct ti_ohci *ohci)
+{
+	int i, events;
+
+	for (i=0; i < 9; i++) {
+		mdelay(200);
+		events = reg_read(ohci, OHCI1394_IntEventSet);
+		if (events & OHCI1394_busReset)
+			reg_write(ohci, OHCI1394_IntEventClear,
+					OHCI1394_busReset);
+	}
+}
+
+/**
+ * init_ohci1394_enable_physical_dma - Enable physical DMA for remote debugging
+ * This enables remote DMA access over IEEE1394 from every host for the low
+ * 4GB of address space. DMA accesses above 4GB are not available currently.
+ */
+static inline void __init init_ohci1394_enable_physical_dma(struct ti_ohci *hci)
+{
+	reg_write(hci, OHCI1394_PhyReqFilterHiSet, 0xffffffff);
+	reg_write(hci, OHCI1394_PhyReqFilterLoSet, 0xffffffff);
+	reg_write(hci, OHCI1394_PhyUpperBound, 0xffff0000);
+}
+
+/**
+ * init_ohci1394_reset_and_init_dma - init controller and enable DMA
+ * This initializes the given controller and enables physical DMA engine in it.
+ */
+static inline void __init init_ohci1394_reset_and_init_dma(struct ti_ohci *ohci)
+{
+	/* Start off with a soft reset, clears everything to a sane state. */
+	init_ohci1394_soft_reset(ohci);
+
+	/* Accessing some registers without LPS enabled may cause lock up */
+	reg_write(ohci, OHCI1394_HCControlSet, OHCI1394_HCControl_LPS);
+
+	/* Disable and clear interrupts */
+	reg_write(ohci, OHCI1394_IntEventClear, 0xffffffff);
+	reg_write(ohci, OHCI1394_IntMaskClear, 0xffffffff);
+
+	mdelay(50); /* Wait 50msec to make sure we have full link enabled */
+
+	init_ohci1394_initialize(ohci);
+	/*
+	 * The initialization causes at least one IEEE1394 bus reset. Enabling
+	 * physical DMA only works *after* *all* bus resets have calmed down:
+	 */
+	init_ohci1394_wait_for_busresets(ohci);
+
+	/* We had to wait and do this now if we want to debug early problems */
+	init_ohci1394_enable_physical_dma(ohci);
+}
+
+/**
+ * init_ohci1394_controller - Map the registers of the controller and init DMA
+ * This maps the registers of the specified controller and initializes it
+ */
+static inline void __init init_ohci1394_controller(int num, int slot, int func)
+{
+	unsigned long ohci_base;
+	struct ti_ohci ohci;
+
+	printk(KERN_INFO "init_ohci1394_dma: initializing OHCI-1394"
+			 " at %02x:%02x.%x\n", num, slot, func);
+
+	ohci_base = read_pci_config(num, slot, func, PCI_BASE_ADDRESS_0+(0<<2))
+						   & PCI_BASE_ADDRESS_MEM_MASK;
+
+	set_fixmap_nocache(FIX_OHCI1394_BASE, ohci_base);
+
+	ohci.registers = (void *)fix_to_virt(FIX_OHCI1394_BASE);
+
+	init_ohci1394_reset_and_init_dma(&ohci);
+}
+
+/**
+ * debug_init_ohci1394_dma - scan for OHCI1394 controllers and init DMA on them
+ * Scans the whole PCI space for OHCI1394 controllers and inits DMA on them
+ */
+void __init init_ohci1394_dma_on_all_controllers(void)
+{
+	int num, slot, func;
+
+	if (!early_pci_allowed())
+		return;
+
+	/* Poor man's PCI discovery, the only thing we can do at early boot */
+	for (num = 0; num < 32; num++) {
+		for (slot = 0; slot < 32; slot++) {
+			for (func = 0; func < 8; func++) {
+				u32 class = read_pci_config(num,slot,func,
+							PCI_CLASS_REVISION);
+				if ((class == 0xffffffff))
+					continue; /* No device at this func */
+
+				if (class>>8 != PCI_CLASS_SERIAL_FIREWIRE_OHCI)
+					continue; /* Not an OHCI-1394 device */
+
+				init_ohci1394_controller(num, slot, func);
+				break; /* Assume one controller per device */
+			}
+		}
+	}
+	printk(KERN_INFO "init_ohci1394_dma: finished initializing OHCI DMA\n");
+}
+
+/**
+ * setup_init_ohci1394_early - enables early OHCI1394 DMA initialization
+ */
+static int __init setup_ohci1394_dma(char *opt)
+{
+	if (!strcmp(opt, "early"))
+		init_ohci1394_dma_early = 1;
+	return 0;
+}
+
+/* passing ohci1394_dma=early on boot causes early OHCI1394 DMA initialization */
+early_param("ohci1394_dma", setup_ohci1394_dma);
diff --git a/include/asm-x86/fixmap_32.h b/include/asm-x86/fixmap_32.h
index fde140fd6d95..a7404d50686b 100644
--- a/include/asm-x86/fixmap_32.h
+++ b/include/asm-x86/fixmap_32.h
@@ -104,6 +104,9 @@ enum fixed_addresses {
 			(__end_of_permanent_fixed_addresses & 511),
 	FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS*FIX_BTMAPS_NESTING - 1,
 	FIX_WP_TEST,
+#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
+	FIX_OHCI1394_BASE,
+#endif
 	__end_of_fixed_addresses
 };
 
diff --git a/include/asm-x86/fixmap_64.h b/include/asm-x86/fixmap_64.h
index 8f44782e5fe5..70ddb21e6458 100644
--- a/include/asm-x86/fixmap_64.h
+++ b/include/asm-x86/fixmap_64.h
@@ -44,6 +44,9 @@ enum fixed_addresses {
 	FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS-1,
 	FIX_EFI_IO_MAP_LAST_PAGE,
 	FIX_EFI_IO_MAP_FIRST_PAGE = FIX_EFI_IO_MAP_LAST_PAGE+MAX_EFI_IO_PAGES-1,
+#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
+	FIX_OHCI1394_BASE,
+#endif
 	__end_of_fixed_addresses
 };
 
diff --git a/include/linux/init_ohci1394_dma.h b/include/linux/init_ohci1394_dma.h
new file mode 100644
index 000000000000..3c03a4bba5e4
--- /dev/null
+++ b/include/linux/init_ohci1394_dma.h
@@ -0,0 +1,4 @@
+#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
+extern int __initdata init_ohci1394_dma_early;
+extern void __init init_ohci1394_dma_on_all_controllers(void);
+#endif
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index aa56e631580d..89f4035b526c 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -586,5 +586,33 @@ config LATENCYTOP
 	  Enable this option if you want to use the LatencyTOP tool
 	  to find out which userspace is blocking on what kernel operations.
 
+config PROVIDE_OHCI1394_DMA_INIT
+	bool "Provide code for enabling DMA over FireWire early on boot"
+	depends on PCI && X86
+	help
+	  If you want to debug problems which hang or crash the kernel early
+	  on boot and the crashing machine has a FireWire port, you can use
+	  this feature to remotely access the memory of the crashed machine
+	  over FireWire. This employs remote DMA as part of the OHCI1394
+	  specification which is now the standard for FireWire controllers.
+
+	  With remote DMA, you can monitor the printk buffer remotely using
+	  firescope and access all memory below 4GB using fireproxy from gdb.
+	  Even controlling a kernel debugger is possible using remote DMA.
+
+	  Usage:
+
+	  If ohci1394_dma=early is used as boot parameter, it will initialize
+	  all OHCI1394 controllers which are found in the PCI config space.
+
+	  As all changes to the FireWire bus such as enabling and disabling
+	  devices cause a bus reset and thereby disable remote DMA for all
+	  devices, be sure to have the cable plugged and FireWire enabled on
+	  the debugging host before booting the debug target for debugging.
+
+	  This code (~1k) is freed after boot. By then, the firewire stack
+	  in charge of the OHCI-1394 controllers should be used instead.
+
+	  See Documentation/debugging-via-ohci1394.txt for more information.
 
 source "samples/Kconfig"
-- 
cgit v1.2.3-59-g8ed1b


From e3ed910db221768f8fd6192b13373e17d61bcdf0 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:34:11 +0100
Subject: x86: use the same pgd_list for PAE and 64-bit

Use a standard list threaded through page->lru for maintaining the pgd
list on PAE.  This is the same as 64-bit, and seems saner than using a
non-standard list via page->index.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/fault.c          | 10 +++-------
 arch/x86/mm/pageattr.c       |  2 +-
 arch/x86/mm/pgtable_32.c     | 19 +++++--------------
 include/asm-x86/pgtable.h    |  2 ++
 include/asm-x86/pgtable_32.h |  2 --
 include/asm-x86/pgtable_64.h |  3 ---
 6 files changed, 11 insertions(+), 27 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 72547a7e32c6..e28cc5277b16 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -907,10 +907,8 @@ do_sigbus:
 	force_sig_info_fault(SIGBUS, BUS_ADRERR, address, tsk);
 }
 
-#ifdef CONFIG_X86_64
 DEFINE_SPINLOCK(pgd_lock);
 LIST_HEAD(pgd_list);
-#endif
 
 void vmalloc_sync_all(void)
 {
@@ -935,13 +933,11 @@ void vmalloc_sync_all(void)
 			struct page *page;
 
 			spin_lock_irqsave(&pgd_lock, flags);
-			for (page = pgd_list; page; page =
-					(struct page *)page->index)
+			list_for_each_entry(page, &pgd_list, lru) {
 				if (!vmalloc_sync_one(page_address(page),
-								address)) {
-					BUG_ON(page != pgd_list);
+						      address))
 					break;
-				}
+			}
 			spin_unlock_irqrestore(&pgd_lock, flags);
 			if (!page)
 				set_bit(pgd_index(address), insync);
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index ec07c1873d65..1cc6607eacb0 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -175,7 +175,7 @@ static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 	if (!SHARED_KERNEL_PMD) {
 		struct page *page;
 
-		for (page = pgd_list; page; page = (struct page *)page->index) {
+		list_for_each_entry(page, &pgd_list, lru) {
 			pgd_t *pgd;
 			pud_t *pud;
 			pmd_t *pmd;
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index 5ca3552474ae..2ae5999a795a 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -205,27 +205,18 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
  * vmalloc faults work because attached pagetables are never freed.
  * -- wli
  */
-DEFINE_SPINLOCK(pgd_lock);
-struct page *pgd_list;
-
 static inline void pgd_list_add(pgd_t *pgd)
 {
 	struct page *page = virt_to_page(pgd);
-	page->index = (unsigned long)pgd_list;
-	if (pgd_list)
-		set_page_private(pgd_list, (unsigned long)&page->index);
-	pgd_list = page;
-	set_page_private(page, (unsigned long)&pgd_list);
+
+	list_add(&page->lru, &pgd_list);
 }
 
 static inline void pgd_list_del(pgd_t *pgd)
 {
-	struct page *next, **pprev, *page = virt_to_page(pgd);
-	next = (struct page *)page->index;
-	pprev = (struct page **)page_private(page);
-	*pprev = next;
-	if (next)
-		set_page_private(next, (unsigned long)pprev);
+	struct page *page = virt_to_page(pgd);
+
+	list_del(&page->lru);
 }
 
 
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 269e7e29ea8e..cd2524f07452 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -131,6 +131,8 @@ extern pteval_t __PAGE_KERNEL, __PAGE_KERNEL_EXEC;
 extern unsigned long empty_zero_page[PAGE_SIZE/sizeof(unsigned long)];
 #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
 
+extern spinlock_t pgd_lock;
+extern struct list_head pgd_list;
 
 /*
  * The following only work if pte_present() is true.
diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h
index 7b61cb5989b0..21e70fbf1dae 100644
--- a/include/asm-x86/pgtable_32.h
+++ b/include/asm-x86/pgtable_32.h
@@ -27,8 +27,6 @@ struct vm_area_struct;
 
 extern pgd_t swapper_pg_dir[1024];
 extern struct kmem_cache *pmd_cache;
-extern spinlock_t pgd_lock;
-extern struct page *pgd_list;
 void check_pgt_cache(void);
 
 static inline void pgtable_cache_init(void) {}
diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index ce1dbab75e39..6e615a103c2f 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -240,9 +240,6 @@ static inline unsigned long pmd_bad(pmd_t pmd)
 #define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x)		((pte_t) { .pte = (x).val })
 
-extern spinlock_t pgd_lock;
-extern struct list_head pgd_list;
-
 extern int kern_addr_valid(unsigned long addr); 
 
 #define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-- 
cgit v1.2.3-59-g8ed1b


From f6df72e71eba621b2f5c49b3a763116fac748f6e Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 13:34:11 +0100
Subject: x86: fix early_ioremap pagetable ops

Put appropriate pagetable update hooks in so that paravirt knows
what's going on in there.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/ioremap.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index ac9ab20d8092..ed795721ca8e 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -18,6 +18,7 @@
 #include <asm/fixmap.h>
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
+#include <asm/pgalloc.h>
 
 enum ioremap_mode {
 	IOR_MODE_UNCACHED,
@@ -326,6 +327,7 @@ void __init early_ioremap_clear(void)
 
 	pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
 	*pgd = 0;
+	paravirt_release_pt(__pa(pgd) >> PAGE_SHIFT);
 	__flush_tlb_all();
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From bb4a1d644a84e7e9d1d1fa9d1c7d1017b02e0947 Mon Sep 17 00:00:00 2001
From: Joachim Deguara <joachim.deguara@amd.com>
Date: Wed, 30 Jan 2008 13:34:12 +0100
Subject: x86: add PCI IDs to k8topology_64.c

This just adds the PCI IDs of AMD's family 10h and 11h CPU's northbridges to
k8topology discovery.

Signed-off-by: Joachim Deguara <joachim.deguara@amd.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/k8topology_64.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/mm/k8topology_64.c b/arch/x86/mm/k8topology_64.c
index 32b963de9b8f..7a2ebce87df5 100644
--- a/arch/x86/mm/k8topology_64.c
+++ b/arch/x86/mm/k8topology_64.c
@@ -28,11 +28,15 @@ static __init int find_northbridge(void)
 		u32 header;
 
 		header = read_pci_config(0, num, 0, 0x00);
-		if (header != (PCI_VENDOR_ID_AMD | (0x1100<<16)))
+		if (header != (PCI_VENDOR_ID_AMD | (0x1100<<16)) &&
+			header != (PCI_VENDOR_ID_AMD | (0x1200<<16)) &&
+			header != (PCI_VENDOR_ID_AMD | (0x1300<<16)))
 			continue;
 
 		header = read_pci_config(0, num, 1, 0x00);
-		if (header != (PCI_VENDOR_ID_AMD | (0x1101<<16)))
+		if (header != (PCI_VENDOR_ID_AMD | (0x1101<<16)) &&
+			header != (PCI_VENDOR_ID_AMD | (0x1201<<16)) &&
+			header != (PCI_VENDOR_ID_AMD | (0x1301<<16)))
 			continue;
 		return num;
 	}
-- 
cgit v1.2.3-59-g8ed1b


From 9198715763e8d0fd7fb7578c07916a5313e28b9d Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:34:12 +0100
Subject: x86: fix overlap between pagetable with bss section

one early crash on one 8 node 256g machine:

Command line: console=uart8250,io,0x3f8,115200n8 initrd=kernel.org/mydisk11_x86_64.gz rw root=/dev/ram0 debug initcall_debug apic=debug acpi.debug_level=0x0000000f pci=routeirq ip=dhcp load_ramdisk=1 ramdisk_size=131072 BOOT_IMAGE=kernel.org/bzImage_2.6.25_k8.1
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009bc00 (usable)
 BIOS-e820: 000000000009bc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000e6000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 00000000dffe0000 (usable)
 BIOS-e820: 00000000dffe0000 - 00000000dffee000 (ACPI data)
 BIOS-e820: 00000000dffee000 - 00000000dffff050 (ACPI NVS)
 BIOS-e820: 00000000dffff050 - 00000000e0000000 (reserved)
 BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
 BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
 BIOS-e820: 00000000ff700000 - 0000000100000000 (reserved)
 BIOS-e820: 0000000100000000 - 0000004020000000 (usable)
Early serial console at I/O port 0x3f8 (options '115200n8')
console [uart0] enabled
end_pfn_map = 67239936
Kernel panic - not syncing: Duplicated early reservation d40000-e42000

Pid: 0, comm: swapper Not tainted 2.6.24-smp-g5a514e21-dirty #3

Call Trace:
 [<ffffffff80221545>] lapic_get_maxlvt+0x0/0x10
 [<ffffffff80221657>] clear_local_APIC+0x5/0xcf
 [<ffffffff80221726>] disable_local_APIC+0x5/0x17
 [<ffffffff8021fe16>] smp_send_stop+0x46/0x4c
 [<ffffffff80235293>] panic+0x94/0x13e
 [<ffffffff80bc3b03>] sctp_eps_proc_init+0x12/0x34
 [<ffffffff80b9f1c5>] reserve_early+0x30/0x6c
 [<ffffffff80803925>] init_memory_mapping+0x2cd/0x2dc
 [<ffffffff80b9dc01>] setup_arch+0x21f/0x44e
 [<ffffffff80b978be>] start_kernel+0x6f/0x2c7
 [<ffffffff80b971cc>] _sinittext+0x1cc/0x1d3

it turns out there is overlap between pgtable and bss...

in System.map we have
ffffffff80d40420 b rsi_table
ffffffff80d40620 B krb5_seq_lock
ffffffff80d40628 b i.20437
ffffffff80d40630 b xprt_rdma_inline_write_padding
ffffffff80d40638 b sunrpc_table_header
ffffffff80d40640 b zero
ffffffff80d40644 b min_memreg
ffffffff80d40648 b rpcrdma_tk_lock_g
ffffffff80d40650 B sctp_assocs_id_lock
ffffffff80d40658 B proc_net_sctp
ffffffff80d40660 B sctp_assocs_id
ffffffff80d40680 B sysctl_sctp_mem
ffffffff80d40690 B sysctl_sctp_rmem
ffffffff80d406a0 B sysctl_sctp_wmem
ffffffff80d406b0 b sctp_ctl_socket
ffffffff80d406b8 b sctp_pf_inet6_specific
ffffffff80d406c0 b sctp_pf_inet_specific
ffffffff80d406c8 b sctp_af_v4_specific
ffffffff80d406d0 b sctp_af_v6_specific
ffffffff80d406d8 b sctp_rand.33270
ffffffff80d406dc b sctp_memory_pressure
ffffffff80d406e0 b sctp_sockets_allocated
ffffffff80d406e4 b sctp_memory_allocated
ffffffff80d406e8 b sctp_sysctl_header
ffffffff80d406f0 b zero
ffffffff80d406f4 A __bss_stop
ffffffff80d406f4 A _end

need to round up table_start to PAGE_SIZE.

also make the panic more informative.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/e820_64.c | 4 ++--
 arch/x86/mm/init_64.c     | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index f8b7bebb4344..c617174e8963 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -70,8 +70,8 @@ void __init reserve_early(unsigned long start, unsigned long end)
 	for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
 		r = &early_res[i];
 		if (end > r->start && start < r->end)
-			panic("Duplicated early reservation %lx-%lx\n",
-			      start, end);
+			panic("Overlapping early reservations %lx-%lx to %lx-%lx\n",
+			      start, end, r->start, r->end);
 	}
 	if (i >= MAX_EARLY_RES)
 		panic("Too many early reservations");
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index a95272644591..cc50a13ce8d9 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -358,6 +358,13 @@ static void __init find_early_table_space(unsigned long end)
 	if (table_start == -1UL)
 		panic("Cannot find space for the kernel page tables");
 
+	/*
+	 * When you have a lot of RAM like 256GB, early_table will not fit
+	 * into 0x8000 range, find_e820_area() will find area after kernel
+	 * bss but the table_start is not page aligned, so need to round it
+	 * up to avoid overlap with bss:
+	 */
+	table_start = round_up(table_start, PAGE_SIZE);
 	table_start >>= PAGE_SHIFT;
 	table_end = table_start;
 
-- 
cgit v1.2.3-59-g8ed1b


From afadcd788f37bfa62d92662e54a720c26c91becf Mon Sep 17 00:00:00 2001
From: Yinghai Lu <Yinghai.Lu@Sun.COM>
Date: Wed, 30 Jan 2008 13:34:12 +0100
Subject: x86: fix nodemap_size according to nodeid bits

memnode.map is s16 array because of nodeid is 16 bit now.

so need to increase the nodemap_size according to that bits.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/numa_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index f0e5cabe49d8..dc3b1f7e1451 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -92,7 +92,7 @@ static int __init allocate_cachealigned_memnodemap(void)
 
 	pad = L1_CACHE_BYTES - 1;
 	pad_addr = 0x8000;
-	nodemap_size = pad + memnodemapsize;
+	nodemap_size = pad + sizeof(s16) * memnodemapsize;
 	nodemap_addr = find_e820_area(pad_addr, end_pfn<<PAGE_SHIFT,
 				      nodemap_size);
 	if (nodemap_addr == -1UL) {
-- 
cgit v1.2.3-59-g8ed1b


From fb56dbb31c4738a3918db81fd24da732ce3b4ae6 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Sun, 2 Dec 2007 10:50:06 +0200
Subject: KVM: Export include/linux/kvm.h only if $ARCH actually supports KVM

Currently, make headers_check barfs due to <asm/kvm.h>, which <linux/kvm.h>
includes, not existing.  Rather than add a zillion <asm/kvm.h>s, export kvm.h
only if the arch actually supports it.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/Kconfig     | 1 +
 drivers/kvm/Kconfig  | 7 +++++--
 include/linux/Kbuild | 2 +-
 3 files changed, 7 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fb3eea3e38ee..d289cfcf92c4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -107,6 +107,7 @@ config ARCH_SUPPORTS_OPROFILE
 	bool
 	default y
 
+select HAVE_KVM
 
 config ZONE_DMA32
 	bool
diff --git a/drivers/kvm/Kconfig b/drivers/kvm/Kconfig
index 656920636cb2..c83e1c9b5129 100644
--- a/drivers/kvm/Kconfig
+++ b/drivers/kvm/Kconfig
@@ -1,9 +1,12 @@
 #
 # KVM configuration
 #
+config HAVE_KVM
+       bool
+
 menuconfig VIRTUALIZATION
 	bool "Virtualization"
-	depends on X86
+	depends on HAVE_KVM || X86
 	default y
 	---help---
 	  Say Y here to get to see options for using your Linux host to run other
@@ -16,7 +19,7 @@ if VIRTUALIZATION
 
 config KVM
 	tristate "Kernel-based Virtual Machine (KVM) support"
-	depends on X86 && EXPERIMENTAL
+	depends on HAVE_KVM && EXPERIMENTAL
 	select PREEMPT_NOTIFIERS
 	select ANON_INODES
 	---help---
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index c263a69b5680..85b2482cc736 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -255,7 +255,7 @@ unifdef-y += kd.h
 unifdef-y += kernelcapi.h
 unifdef-y += kernel.h
 unifdef-y += keyboard.h
-unifdef-y += kvm.h
+unifdef-$(CONFIG_HAVE_KVM) += kvm.h
 unifdef-y += llc.h
 unifdef-y += loop.h
 unifdef-y += lp.h
-- 
cgit v1.2.3-59-g8ed1b


From edf884172e9828c6234b254208af04655855038d Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Sun, 16 Dec 2007 11:02:48 +0200
Subject: KVM: Move arch dependent files to new directory arch/x86/kvm/

This paves the way for multiple architecture support.  Note that while
ioapic.c could potentially be shared with ia64, it is also moved.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/Kconfig                  |    2 +
 arch/x86/Makefile                 |    2 +
 arch/x86/kvm/Kconfig              |   57 +
 arch/x86/kvm/Makefile             |   15 +
 arch/x86/kvm/i8259.c              |  450 ++++++
 arch/x86/kvm/ioapic.c             |  400 +++++
 arch/x86/kvm/irq.c                |   98 ++
 arch/x86/kvm/irq.h                |  195 +++
 arch/x86/kvm/kvm_svm.h            |   45 +
 arch/x86/kvm/lapic.c              | 1085 +++++++++++++
 arch/x86/kvm/mmu.c                | 1805 +++++++++++++++++++++
 arch/x86/kvm/mmu.h                |   44 +
 arch/x86/kvm/paging_tmpl.h        |  461 ++++++
 arch/x86/kvm/segment_descriptor.h |   29 +
 arch/x86/kvm/svm.c                | 1725 ++++++++++++++++++++
 arch/x86/kvm/svm.h                |  325 ++++
 arch/x86/kvm/vmx.c                | 2671 +++++++++++++++++++++++++++++++
 arch/x86/kvm/vmx.h                |  324 ++++
 arch/x86/kvm/x86.c                | 3146 ++++++++++++++++++++++++++++++++++++
 arch/x86/kvm/x86_emulate.c        | 1912 ++++++++++++++++++++++
 drivers/Kconfig                   |    2 -
 drivers/Makefile                  |    1 -
 drivers/kvm/Kconfig               |   57 -
 drivers/kvm/Makefile              |   10 -
 drivers/kvm/i8259.c               |  449 ------
 drivers/kvm/ioapic.c              |  402 -----
 drivers/kvm/iodev.h               |    2 +-
 drivers/kvm/irq.c                 |   99 --
 drivers/kvm/irq.h                 |  196 ---
 drivers/kvm/kvm.h                 |  289 ----
 drivers/kvm/kvm_main.c            |    2 +-
 drivers/kvm/kvm_svm.h             |   45 -
 drivers/kvm/lapic.c               | 1087 -------------
 drivers/kvm/mmu.c                 | 1806 ---------------------
 drivers/kvm/mmu.h                 |   44 -
 drivers/kvm/paging_tmpl.h         |  461 ------
 drivers/kvm/segment_descriptor.h  |   29 -
 drivers/kvm/svm.c                 | 1725 --------------------
 drivers/kvm/svm.h                 |  325 ----
 drivers/kvm/types.h               |   54 -
 drivers/kvm/vmx.c                 | 2673 -------------------------------
 drivers/kvm/vmx.h                 |  324 ----
 drivers/kvm/x86.c                 | 3148 -------------------------------------
 drivers/kvm/x86.h                 |  602 -------
 drivers/kvm/x86_emulate.c         | 1913 ----------------------
 drivers/kvm/x86_emulate.h         |  186 ---
 include/asm-x86/kvm_host.h        |  601 +++++++
 include/asm-x86/kvm_x86_emulate.h |  186 +++
 include/linux/kvm_host.h          |  289 ++++
 include/linux/kvm_types.h         |   54 +
 50 files changed, 15923 insertions(+), 15929 deletions(-)
 create mode 100644 arch/x86/kvm/Kconfig
 create mode 100644 arch/x86/kvm/Makefile
 create mode 100644 arch/x86/kvm/i8259.c
 create mode 100644 arch/x86/kvm/ioapic.c
 create mode 100644 arch/x86/kvm/irq.c
 create mode 100644 arch/x86/kvm/irq.h
 create mode 100644 arch/x86/kvm/kvm_svm.h
 create mode 100644 arch/x86/kvm/lapic.c
 create mode 100644 arch/x86/kvm/mmu.c
 create mode 100644 arch/x86/kvm/mmu.h
 create mode 100644 arch/x86/kvm/paging_tmpl.h
 create mode 100644 arch/x86/kvm/segment_descriptor.h
 create mode 100644 arch/x86/kvm/svm.c
 create mode 100644 arch/x86/kvm/svm.h
 create mode 100644 arch/x86/kvm/vmx.c
 create mode 100644 arch/x86/kvm/vmx.h
 create mode 100644 arch/x86/kvm/x86.c
 create mode 100644 arch/x86/kvm/x86_emulate.c
 delete mode 100644 drivers/kvm/Kconfig
 delete mode 100644 drivers/kvm/Makefile
 delete mode 100644 drivers/kvm/i8259.c
 delete mode 100644 drivers/kvm/ioapic.c
 delete mode 100644 drivers/kvm/irq.c
 delete mode 100644 drivers/kvm/irq.h
 delete mode 100644 drivers/kvm/kvm.h
 delete mode 100644 drivers/kvm/kvm_svm.h
 delete mode 100644 drivers/kvm/lapic.c
 delete mode 100644 drivers/kvm/mmu.c
 delete mode 100644 drivers/kvm/mmu.h
 delete mode 100644 drivers/kvm/paging_tmpl.h
 delete mode 100644 drivers/kvm/segment_descriptor.h
 delete mode 100644 drivers/kvm/svm.c
 delete mode 100644 drivers/kvm/svm.h
 delete mode 100644 drivers/kvm/types.h
 delete mode 100644 drivers/kvm/vmx.c
 delete mode 100644 drivers/kvm/vmx.h
 delete mode 100644 drivers/kvm/x86.c
 delete mode 100644 drivers/kvm/x86.h
 delete mode 100644 drivers/kvm/x86_emulate.c
 delete mode 100644 drivers/kvm/x86_emulate.h
 create mode 100644 include/asm-x86/kvm_host.h
 create mode 100644 include/asm-x86/kvm_x86_emulate.h
 create mode 100644 include/linux/kvm_host.h
 create mode 100644 include/linux/kvm_types.h

(limited to 'arch')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d289cfcf92c4..65b449134cf7 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1599,4 +1599,6 @@ source "security/Kconfig"
 
 source "crypto/Kconfig"
 
+source "arch/x86/kvm/Kconfig"
+
 source "lib/Kconfig"
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index b08f18261df6..da8f4129780b 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -7,6 +7,8 @@ else
         KBUILD_DEFCONFIG := $(ARCH)_defconfig
 endif
 
+core-$(CONFIG_KVM) += arch/x86/kvm/
+
 # BITS is used as extension for files which are available in a 32 bit
 # and a 64 bit version to simplify shared Makefiles.
 # e.g.: obj-y += foo_$(BITS).o
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
new file mode 100644
index 000000000000..c83e1c9b5129
--- /dev/null
+++ b/arch/x86/kvm/Kconfig
@@ -0,0 +1,57 @@
+#
+# KVM configuration
+#
+config HAVE_KVM
+       bool
+
+menuconfig VIRTUALIZATION
+	bool "Virtualization"
+	depends on HAVE_KVM || X86
+	default y
+	---help---
+	  Say Y here to get to see options for using your Linux host to run other
+	  operating systems inside virtual machines (guests).
+	  This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
+
+if VIRTUALIZATION
+
+config KVM
+	tristate "Kernel-based Virtual Machine (KVM) support"
+	depends on HAVE_KVM && EXPERIMENTAL
+	select PREEMPT_NOTIFIERS
+	select ANON_INODES
+	---help---
+	  Support hosting fully virtualized guest machines using hardware
+	  virtualization extensions.  You will need a fairly recent
+	  processor equipped with virtualization extensions. You will also
+	  need to select one or more of the processor modules below.
+
+	  This module provides access to the hardware capabilities through
+	  a character device node named /dev/kvm.
+
+	  To compile this as a module, choose M here: the module
+	  will be called kvm.
+
+	  If unsure, say N.
+
+config KVM_INTEL
+	tristate "KVM for Intel processors support"
+	depends on KVM
+	---help---
+	  Provides support for KVM on Intel processors equipped with the VT
+	  extensions.
+
+config KVM_AMD
+	tristate "KVM for AMD processors support"
+	depends on KVM
+	---help---
+	  Provides support for KVM on AMD processors equipped with the AMD-V
+	  (SVM) extensions.
+
+# OK, it's a little counter-intuitive to do this, but it puts it neatly under
+# the virtualization menu.
+source drivers/lguest/Kconfig
+
+endif # VIRTUALIZATION
diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
new file mode 100644
index 000000000000..880ffe403b35
--- /dev/null
+++ b/arch/x86/kvm/Makefile
@@ -0,0 +1,15 @@
+#
+# Makefile for Kernel-based Virtual Machine module
+#
+
+common-objs = $(addprefix ../../../drivers/kvm/, kvm_main.o)
+
+EXTRA_CFLAGS += -I drivers/kvm
+
+kvm-objs := $(common-objs) x86.o mmu.o x86_emulate.o i8259.o irq.o lapic.o \
+	ioapic.o
+obj-$(CONFIG_KVM) += kvm.o
+kvm-intel-objs = vmx.o
+obj-$(CONFIG_KVM_INTEL) += kvm-intel.o
+kvm-amd-objs = svm.o
+obj-$(CONFIG_KVM_AMD) += kvm-amd.o
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
new file mode 100644
index 000000000000..ab29cf2def47
--- /dev/null
+++ b/arch/x86/kvm/i8259.c
@@ -0,0 +1,450 @@
+/*
+ * 8259 interrupt controller emulation
+ *
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ * Copyright (c) 2007 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ * Authors:
+ *   Yaozu (Eddie) Dong <Eddie.dong@intel.com>
+ *   Port from Qemu.
+ */
+#include <linux/mm.h>
+#include "irq.h"
+
+#include <linux/kvm_host.h>
+
+/*
+ * set irq level. If an edge is detected, then the IRR is set to 1
+ */
+static inline void pic_set_irq1(struct kvm_kpic_state *s, int irq, int level)
+{
+	int mask;
+	mask = 1 << irq;
+	if (s->elcr & mask)	/* level triggered */
+		if (level) {
+			s->irr |= mask;
+			s->last_irr |= mask;
+		} else {
+			s->irr &= ~mask;
+			s->last_irr &= ~mask;
+		}
+	else	/* edge triggered */
+		if (level) {
+			if ((s->last_irr & mask) == 0)
+				s->irr |= mask;
+			s->last_irr |= mask;
+		} else
+			s->last_irr &= ~mask;
+}
+
+/*
+ * return the highest priority found in mask (highest = smallest
+ * number). Return 8 if no irq
+ */
+static inline int get_priority(struct kvm_kpic_state *s, int mask)
+{
+	int priority;
+	if (mask == 0)
+		return 8;
+	priority = 0;
+	while ((mask & (1 << ((priority + s->priority_add) & 7))) == 0)
+		priority++;
+	return priority;
+}
+
+/*
+ * return the pic wanted interrupt. return -1 if none
+ */
+static int pic_get_irq(struct kvm_kpic_state *s)
+{
+	int mask, cur_priority, priority;
+
+	mask = s->irr & ~s->imr;
+	priority = get_priority(s, mask);
+	if (priority == 8)
+		return -1;
+	/*
+	 * compute current priority. If special fully nested mode on the
+	 * master, the IRQ coming from the slave is not taken into account
+	 * for the priority computation.
+	 */
+	mask = s->isr;
+	if (s->special_fully_nested_mode && s == &s->pics_state->pics[0])
+		mask &= ~(1 << 2);
+	cur_priority = get_priority(s, mask);
+	if (priority < cur_priority)
+		/*
+		 * higher priority found: an irq should be generated
+		 */
+		return (priority + s->priority_add) & 7;
+	else
+		return -1;
+}
+
+/*
+ * raise irq to CPU if necessary. must be called every time the active
+ * irq may change
+ */
+static void pic_update_irq(struct kvm_pic *s)
+{
+	int irq2, irq;
+
+	irq2 = pic_get_irq(&s->pics[1]);
+	if (irq2 >= 0) {
+		/*
+		 * if irq request by slave pic, signal master PIC
+		 */
+		pic_set_irq1(&s->pics[0], 2, 1);
+		pic_set_irq1(&s->pics[0], 2, 0);
+	}
+	irq = pic_get_irq(&s->pics[0]);
+	if (irq >= 0)
+		s->irq_request(s->irq_request_opaque, 1);
+	else
+		s->irq_request(s->irq_request_opaque, 0);
+}
+
+void kvm_pic_update_irq(struct kvm_pic *s)
+{
+	pic_update_irq(s);
+}
+
+void kvm_pic_set_irq(void *opaque, int irq, int level)
+{
+	struct kvm_pic *s = opaque;
+
+	pic_set_irq1(&s->pics[irq >> 3], irq & 7, level);
+	pic_update_irq(s);
+}
+
+/*
+ * acknowledge interrupt 'irq'
+ */
+static inline void pic_intack(struct kvm_kpic_state *s, int irq)
+{
+	if (s->auto_eoi) {
+		if (s->rotate_on_auto_eoi)
+			s->priority_add = (irq + 1) & 7;
+	} else
+		s->isr |= (1 << irq);
+	/*
+	 * We don't clear a level sensitive interrupt here
+	 */
+	if (!(s->elcr & (1 << irq)))
+		s->irr &= ~(1 << irq);
+}
+
+int kvm_pic_read_irq(struct kvm_pic *s)
+{
+	int irq, irq2, intno;
+
+	irq = pic_get_irq(&s->pics[0]);
+	if (irq >= 0) {
+		pic_intack(&s->pics[0], irq);
+		if (irq == 2) {
+			irq2 = pic_get_irq(&s->pics[1]);
+			if (irq2 >= 0)
+				pic_intack(&s->pics[1], irq2);
+			else
+				/*
+				 * spurious IRQ on slave controller
+				 */
+				irq2 = 7;
+			intno = s->pics[1].irq_base + irq2;
+			irq = irq2 + 8;
+		} else
+			intno = s->pics[0].irq_base + irq;
+	} else {
+		/*
+		 * spurious IRQ on host controller
+		 */
+		irq = 7;
+		intno = s->pics[0].irq_base + irq;
+	}
+	pic_update_irq(s);
+
+	return intno;
+}
+
+void kvm_pic_reset(struct kvm_kpic_state *s)
+{
+	s->last_irr = 0;
+	s->irr = 0;
+	s->imr = 0;
+	s->isr = 0;
+	s->priority_add = 0;
+	s->irq_base = 0;
+	s->read_reg_select = 0;
+	s->poll = 0;
+	s->special_mask = 0;
+	s->init_state = 0;
+	s->auto_eoi = 0;
+	s->rotate_on_auto_eoi = 0;
+	s->special_fully_nested_mode = 0;
+	s->init4 = 0;
+}
+
+static void pic_ioport_write(void *opaque, u32 addr, u32 val)
+{
+	struct kvm_kpic_state *s = opaque;
+	int priority, cmd, irq;
+
+	addr &= 1;
+	if (addr == 0) {
+		if (val & 0x10) {
+			kvm_pic_reset(s);	/* init */
+			/*
+			 * deassert a pending interrupt
+			 */
+			s->pics_state->irq_request(s->pics_state->
+						   irq_request_opaque, 0);
+			s->init_state = 1;
+			s->init4 = val & 1;
+			if (val & 0x02)
+				printk(KERN_ERR "single mode not supported");
+			if (val & 0x08)
+				printk(KERN_ERR
+				       "level sensitive irq not supported");
+		} else if (val & 0x08) {
+			if (val & 0x04)
+				s->poll = 1;
+			if (val & 0x02)
+				s->read_reg_select = val & 1;
+			if (val & 0x40)
+				s->special_mask = (val >> 5) & 1;
+		} else {
+			cmd = val >> 5;
+			switch (cmd) {
+			case 0:
+			case 4:
+				s->rotate_on_auto_eoi = cmd >> 2;
+				break;
+			case 1:	/* end of interrupt */
+			case 5:
+				priority = get_priority(s, s->isr);
+				if (priority != 8) {
+					irq = (priority + s->priority_add) & 7;
+					s->isr &= ~(1 << irq);
+					if (cmd == 5)
+						s->priority_add = (irq + 1) & 7;
+					pic_update_irq(s->pics_state);
+				}
+				break;
+			case 3:
+				irq = val & 7;
+				s->isr &= ~(1 << irq);
+				pic_update_irq(s->pics_state);
+				break;
+			case 6:
+				s->priority_add = (val + 1) & 7;
+				pic_update_irq(s->pics_state);
+				break;
+			case 7:
+				irq = val & 7;
+				s->isr &= ~(1 << irq);
+				s->priority_add = (irq + 1) & 7;
+				pic_update_irq(s->pics_state);
+				break;
+			default:
+				break;	/* no operation */
+			}
+		}
+	} else
+		switch (s->init_state) {
+		case 0:		/* normal mode */
+			s->imr = val;
+			pic_update_irq(s->pics_state);
+			break;
+		case 1:
+			s->irq_base = val & 0xf8;
+			s->init_state = 2;
+			break;
+		case 2:
+			if (s->init4)
+				s->init_state = 3;
+			else
+				s->init_state = 0;
+			break;
+		case 3:
+			s->special_fully_nested_mode = (val >> 4) & 1;
+			s->auto_eoi = (val >> 1) & 1;
+			s->init_state = 0;
+			break;
+		}
+}
+
+static u32 pic_poll_read(struct kvm_kpic_state *s, u32 addr1)
+{
+	int ret;
+
+	ret = pic_get_irq(s);
+	if (ret >= 0) {
+		if (addr1 >> 7) {
+			s->pics_state->pics[0].isr &= ~(1 << 2);
+			s->pics_state->pics[0].irr &= ~(1 << 2);
+		}
+		s->irr &= ~(1 << ret);
+		s->isr &= ~(1 << ret);
+		if (addr1 >> 7 || ret != 2)
+			pic_update_irq(s->pics_state);
+	} else {
+		ret = 0x07;
+		pic_update_irq(s->pics_state);
+	}
+
+	return ret;
+}
+
+static u32 pic_ioport_read(void *opaque, u32 addr1)
+{
+	struct kvm_kpic_state *s = opaque;
+	unsigned int addr;
+	int ret;
+
+	addr = addr1;
+	addr &= 1;
+	if (s->poll) {
+		ret = pic_poll_read(s, addr1);
+		s->poll = 0;
+	} else
+		if (addr == 0)
+			if (s->read_reg_select)
+				ret = s->isr;
+			else
+				ret = s->irr;
+		else
+			ret = s->imr;
+	return ret;
+}
+
+static void elcr_ioport_write(void *opaque, u32 addr, u32 val)
+{
+	struct kvm_kpic_state *s = opaque;
+	s->elcr = val & s->elcr_mask;
+}
+
+static u32 elcr_ioport_read(void *opaque, u32 addr1)
+{
+	struct kvm_kpic_state *s = opaque;
+	return s->elcr;
+}
+
+static int picdev_in_range(struct kvm_io_device *this, gpa_t addr)
+{
+	switch (addr) {
+	case 0x20:
+	case 0x21:
+	case 0xa0:
+	case 0xa1:
+	case 0x4d0:
+	case 0x4d1:
+		return 1;
+	default:
+		return 0;
+	}
+}
+
+static void picdev_write(struct kvm_io_device *this,
+			 gpa_t addr, int len, const void *val)
+{
+	struct kvm_pic *s = this->private;
+	unsigned char data = *(unsigned char *)val;
+
+	if (len != 1) {
+		if (printk_ratelimit())
+			printk(KERN_ERR "PIC: non byte write\n");
+		return;
+	}
+	switch (addr) {
+	case 0x20:
+	case 0x21:
+	case 0xa0:
+	case 0xa1:
+		pic_ioport_write(&s->pics[addr >> 7], addr, data);
+		break;
+	case 0x4d0:
+	case 0x4d1:
+		elcr_ioport_write(&s->pics[addr & 1], addr, data);
+		break;
+	}
+}
+
+static void picdev_read(struct kvm_io_device *this,
+			gpa_t addr, int len, void *val)
+{
+	struct kvm_pic *s = this->private;
+	unsigned char data = 0;
+
+	if (len != 1) {
+		if (printk_ratelimit())
+			printk(KERN_ERR "PIC: non byte read\n");
+		return;
+	}
+	switch (addr) {
+	case 0x20:
+	case 0x21:
+	case 0xa0:
+	case 0xa1:
+		data = pic_ioport_read(&s->pics[addr >> 7], addr);
+		break;
+	case 0x4d0:
+	case 0x4d1:
+		data = elcr_ioport_read(&s->pics[addr & 1], addr);
+		break;
+	}
+	*(unsigned char *)val = data;
+}
+
+/*
+ * callback when PIC0 irq status changed
+ */
+static void pic_irq_request(void *opaque, int level)
+{
+	struct kvm *kvm = opaque;
+	struct kvm_vcpu *vcpu = kvm->vcpus[0];
+
+	pic_irqchip(kvm)->output = level;
+	if (vcpu)
+		kvm_vcpu_kick(vcpu);
+}
+
+struct kvm_pic *kvm_create_pic(struct kvm *kvm)
+{
+	struct kvm_pic *s;
+	s = kzalloc(sizeof(struct kvm_pic), GFP_KERNEL);
+	if (!s)
+		return NULL;
+	s->pics[0].elcr_mask = 0xf8;
+	s->pics[1].elcr_mask = 0xde;
+	s->irq_request = pic_irq_request;
+	s->irq_request_opaque = kvm;
+	s->pics[0].pics_state = s;
+	s->pics[1].pics_state = s;
+
+	/*
+	 * Initialize PIO device
+	 */
+	s->dev.read = picdev_read;
+	s->dev.write = picdev_write;
+	s->dev.in_range = picdev_in_range;
+	s->dev.private = s;
+	kvm_io_bus_register_dev(&kvm->pio_bus, &s->dev);
+	return s;
+}
diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
new file mode 100644
index 000000000000..72f12f75495d
--- /dev/null
+++ b/arch/x86/kvm/ioapic.c
@@ -0,0 +1,400 @@
+/*
+ *  Copyright (C) 2001  MandrakeSoft S.A.
+ *
+ *    MandrakeSoft S.A.
+ *    43, rue d'Aboukir
+ *    75002 Paris - France
+ *    http://www.linux-mandrake.com/
+ *    http://www.mandrakesoft.com/
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ *  Yunhong Jiang <yunhong.jiang@intel.com>
+ *  Yaozu (Eddie) Dong <eddie.dong@intel.com>
+ *  Based on Xen 3.1 code.
+ */
+
+#include <linux/kvm_host.h>
+#include <linux/kvm.h>
+#include <linux/mm.h>
+#include <linux/highmem.h>
+#include <linux/smp.h>
+#include <linux/hrtimer.h>
+#include <linux/io.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/current.h>
+#include "irq.h"
+#if 0
+#define ioapic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg)
+#else
+#define ioapic_debug(fmt, arg...)
+#endif
+static void ioapic_deliver(struct kvm_ioapic *vioapic, int irq);
+
+static unsigned long ioapic_read_indirect(struct kvm_ioapic *ioapic,
+					  unsigned long addr,
+					  unsigned long length)
+{
+	unsigned long result = 0;
+
+	switch (ioapic->ioregsel) {
+	case IOAPIC_REG_VERSION:
+		result = ((((IOAPIC_NUM_PINS - 1) & 0xff) << 16)
+			  | (IOAPIC_VERSION_ID & 0xff));
+		break;
+
+	case IOAPIC_REG_APIC_ID:
+	case IOAPIC_REG_ARB_ID:
+		result = ((ioapic->id & 0xf) << 24);
+		break;
+
+	default:
+		{
+			u32 redir_index = (ioapic->ioregsel - 0x10) >> 1;
+			u64 redir_content;
+
+			ASSERT(redir_index < IOAPIC_NUM_PINS);
+
+			redir_content = ioapic->redirtbl[redir_index].bits;
+			result = (ioapic->ioregsel & 0x1) ?
+			    (redir_content >> 32) & 0xffffffff :
+			    redir_content & 0xffffffff;
+			break;
+		}
+	}
+
+	return result;
+}
+
+static void ioapic_service(struct kvm_ioapic *ioapic, unsigned int idx)
+{
+	union ioapic_redir_entry *pent;
+
+	pent = &ioapic->redirtbl[idx];
+
+	if (!pent->fields.mask) {
+		ioapic_deliver(ioapic, idx);
+		if (pent->fields.trig_mode == IOAPIC_LEVEL_TRIG)
+			pent->fields.remote_irr = 1;
+	}
+	if (!pent->fields.trig_mode)
+		ioapic->irr &= ~(1 << idx);
+}
+
+static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
+{
+	unsigned index;
+
+	switch (ioapic->ioregsel) {
+	case IOAPIC_REG_VERSION:
+		/* Writes are ignored. */
+		break;
+
+	case IOAPIC_REG_APIC_ID:
+		ioapic->id = (val >> 24) & 0xf;
+		break;
+
+	case IOAPIC_REG_ARB_ID:
+		break;
+
+	default:
+		index = (ioapic->ioregsel - 0x10) >> 1;
+
+		ioapic_debug("change redir index %x val %x\n", index, val);
+		if (index >= IOAPIC_NUM_PINS)
+			return;
+		if (ioapic->ioregsel & 1) {
+			ioapic->redirtbl[index].bits &= 0xffffffff;
+			ioapic->redirtbl[index].bits |= (u64) val << 32;
+		} else {
+			ioapic->redirtbl[index].bits &= ~0xffffffffULL;
+			ioapic->redirtbl[index].bits |= (u32) val;
+			ioapic->redirtbl[index].fields.remote_irr = 0;
+		}
+		if (ioapic->irr & (1 << index))
+			ioapic_service(ioapic, index);
+		break;
+	}
+}
+
+static void ioapic_inj_irq(struct kvm_ioapic *ioapic,
+			   struct kvm_vcpu *vcpu,
+			   u8 vector, u8 trig_mode, u8 delivery_mode)
+{
+	ioapic_debug("irq %d trig %d deliv %d\n", vector, trig_mode,
+		     delivery_mode);
+
+	ASSERT((delivery_mode == IOAPIC_FIXED) ||
+	       (delivery_mode == IOAPIC_LOWEST_PRIORITY));
+
+	kvm_apic_set_irq(vcpu, vector, trig_mode);
+}
+
+static u32 ioapic_get_delivery_bitmask(struct kvm_ioapic *ioapic, u8 dest,
+				       u8 dest_mode)
+{
+	u32 mask = 0;
+	int i;
+	struct kvm *kvm = ioapic->kvm;
+	struct kvm_vcpu *vcpu;
+
+	ioapic_debug("dest %d dest_mode %d\n", dest, dest_mode);
+
+	if (dest_mode == 0) {	/* Physical mode. */
+		if (dest == 0xFF) {	/* Broadcast. */
+			for (i = 0; i < KVM_MAX_VCPUS; ++i)
+				if (kvm->vcpus[i] && kvm->vcpus[i]->arch.apic)
+					mask |= 1 << i;
+			return mask;
+		}
+		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+			vcpu = kvm->vcpus[i];
+			if (!vcpu)
+				continue;
+			if (kvm_apic_match_physical_addr(vcpu->arch.apic, dest)) {
+				if (vcpu->arch.apic)
+					mask = 1 << i;
+				break;
+			}
+		}
+	} else if (dest != 0)	/* Logical mode, MDA non-zero. */
+		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+			vcpu = kvm->vcpus[i];
+			if (!vcpu)
+				continue;
+			if (vcpu->arch.apic &&
+			    kvm_apic_match_logical_addr(vcpu->arch.apic, dest))
+				mask |= 1 << vcpu->vcpu_id;
+		}
+	ioapic_debug("mask %x\n", mask);
+	return mask;
+}
+
+static void ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
+{
+	u8 dest = ioapic->redirtbl[irq].fields.dest_id;
+	u8 dest_mode = ioapic->redirtbl[irq].fields.dest_mode;
+	u8 delivery_mode = ioapic->redirtbl[irq].fields.delivery_mode;
+	u8 vector = ioapic->redirtbl[irq].fields.vector;
+	u8 trig_mode = ioapic->redirtbl[irq].fields.trig_mode;
+	u32 deliver_bitmask;
+	struct kvm_vcpu *vcpu;
+	int vcpu_id;
+
+	ioapic_debug("dest=%x dest_mode=%x delivery_mode=%x "
+		     "vector=%x trig_mode=%x\n",
+		     dest, dest_mode, delivery_mode, vector, trig_mode);
+
+	deliver_bitmask = ioapic_get_delivery_bitmask(ioapic, dest, dest_mode);
+	if (!deliver_bitmask) {
+		ioapic_debug("no target on destination\n");
+		return;
+	}
+
+	switch (delivery_mode) {
+	case IOAPIC_LOWEST_PRIORITY:
+		vcpu = kvm_get_lowest_prio_vcpu(ioapic->kvm, vector,
+				deliver_bitmask);
+		if (vcpu != NULL)
+			ioapic_inj_irq(ioapic, vcpu, vector,
+				       trig_mode, delivery_mode);
+		else
+			ioapic_debug("null lowest prio vcpu: "
+				     "mask=%x vector=%x delivery_mode=%x\n",
+				     deliver_bitmask, vector, IOAPIC_LOWEST_PRIORITY);
+		break;
+	case IOAPIC_FIXED:
+		for (vcpu_id = 0; deliver_bitmask != 0; vcpu_id++) {
+			if (!(deliver_bitmask & (1 << vcpu_id)))
+				continue;
+			deliver_bitmask &= ~(1 << vcpu_id);
+			vcpu = ioapic->kvm->vcpus[vcpu_id];
+			if (vcpu) {
+				ioapic_inj_irq(ioapic, vcpu, vector,
+					       trig_mode, delivery_mode);
+			}
+		}
+		break;
+
+		/* TODO: NMI */
+	default:
+		printk(KERN_WARNING "Unsupported delivery mode %d\n",
+		       delivery_mode);
+		break;
+	}
+}
+
+void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)
+{
+	u32 old_irr = ioapic->irr;
+	u32 mask = 1 << irq;
+	union ioapic_redir_entry entry;
+
+	if (irq >= 0 && irq < IOAPIC_NUM_PINS) {
+		entry = ioapic->redirtbl[irq];
+		level ^= entry.fields.polarity;
+		if (!level)
+			ioapic->irr &= ~mask;
+		else {
+			ioapic->irr |= mask;
+			if ((!entry.fields.trig_mode && old_irr != ioapic->irr)
+			    || !entry.fields.remote_irr)
+				ioapic_service(ioapic, irq);
+		}
+	}
+}
+
+static int get_eoi_gsi(struct kvm_ioapic *ioapic, int vector)
+{
+	int i;
+
+	for (i = 0; i < IOAPIC_NUM_PINS; i++)
+		if (ioapic->redirtbl[i].fields.vector == vector)
+			return i;
+	return -1;
+}
+
+void kvm_ioapic_update_eoi(struct kvm *kvm, int vector)
+{
+	struct kvm_ioapic *ioapic = kvm->arch.vioapic;
+	union ioapic_redir_entry *ent;
+	int gsi;
+
+	gsi = get_eoi_gsi(ioapic, vector);
+	if (gsi == -1) {
+		printk(KERN_WARNING "Can't find redir item for %d EOI\n",
+		       vector);
+		return;
+	}
+
+	ent = &ioapic->redirtbl[gsi];
+	ASSERT(ent->fields.trig_mode == IOAPIC_LEVEL_TRIG);
+
+	ent->fields.remote_irr = 0;
+	if (!ent->fields.mask && (ioapic->irr & (1 << gsi)))
+		ioapic_deliver(ioapic, gsi);
+}
+
+static int ioapic_in_range(struct kvm_io_device *this, gpa_t addr)
+{
+	struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private;
+
+	return ((addr >= ioapic->base_address &&
+		 (addr < ioapic->base_address + IOAPIC_MEM_LENGTH)));
+}
+
+static void ioapic_mmio_read(struct kvm_io_device *this, gpa_t addr, int len,
+			     void *val)
+{
+	struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private;
+	u32 result;
+
+	ioapic_debug("addr %lx\n", (unsigned long)addr);
+	ASSERT(!(addr & 0xf));	/* check alignment */
+
+	addr &= 0xff;
+	switch (addr) {
+	case IOAPIC_REG_SELECT:
+		result = ioapic->ioregsel;
+		break;
+
+	case IOAPIC_REG_WINDOW:
+		result = ioapic_read_indirect(ioapic, addr, len);
+		break;
+
+	default:
+		result = 0;
+		break;
+	}
+	switch (len) {
+	case 8:
+		*(u64 *) val = result;
+		break;
+	case 1:
+	case 2:
+	case 4:
+		memcpy(val, (char *)&result, len);
+		break;
+	default:
+		printk(KERN_WARNING "ioapic: wrong length %d\n", len);
+	}
+}
+
+static void ioapic_mmio_write(struct kvm_io_device *this, gpa_t addr, int len,
+			      const void *val)
+{
+	struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private;
+	u32 data;
+
+	ioapic_debug("ioapic_mmio_write addr=%p len=%d val=%p\n",
+		     (void*)addr, len, val);
+	ASSERT(!(addr & 0xf));	/* check alignment */
+	if (len == 4 || len == 8)
+		data = *(u32 *) val;
+	else {
+		printk(KERN_WARNING "ioapic: Unsupported size %d\n", len);
+		return;
+	}
+
+	addr &= 0xff;
+	switch (addr) {
+	case IOAPIC_REG_SELECT:
+		ioapic->ioregsel = data;
+		break;
+
+	case IOAPIC_REG_WINDOW:
+		ioapic_write_indirect(ioapic, data);
+		break;
+#ifdef	CONFIG_IA64
+	case IOAPIC_REG_EOI:
+		kvm_ioapic_update_eoi(ioapic, data);
+		break;
+#endif
+
+	default:
+		break;
+	}
+}
+
+void kvm_ioapic_reset(struct kvm_ioapic *ioapic)
+{
+	int i;
+
+	for (i = 0; i < IOAPIC_NUM_PINS; i++)
+		ioapic->redirtbl[i].fields.mask = 1;
+	ioapic->base_address = IOAPIC_DEFAULT_BASE_ADDRESS;
+	ioapic->ioregsel = 0;
+	ioapic->irr = 0;
+	ioapic->id = 0;
+}
+
+int kvm_ioapic_init(struct kvm *kvm)
+{
+	struct kvm_ioapic *ioapic;
+
+	ioapic = kzalloc(sizeof(struct kvm_ioapic), GFP_KERNEL);
+	if (!ioapic)
+		return -ENOMEM;
+	kvm->arch.vioapic = ioapic;
+	kvm_ioapic_reset(ioapic);
+	ioapic->dev.read = ioapic_mmio_read;
+	ioapic->dev.write = ioapic_mmio_write;
+	ioapic->dev.in_range = ioapic_in_range;
+	ioapic->dev.private = ioapic;
+	ioapic->kvm = kvm;
+	kvm_io_bus_register_dev(&kvm->mmio_bus, &ioapic->dev);
+	return 0;
+}
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
new file mode 100644
index 000000000000..07a09aad4fd6
--- /dev/null
+++ b/arch/x86/kvm/irq.c
@@ -0,0 +1,98 @@
+/*
+ * irq.c: API for in kernel interrupt controller
+ * Copyright (c) 2007, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ * Authors:
+ *   Yaozu (Eddie) Dong <Eddie.dong@intel.com>
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kvm_host.h>
+
+#include "irq.h"
+
+/*
+ * check if there is pending interrupt without
+ * intack.
+ */
+int kvm_cpu_has_interrupt(struct kvm_vcpu *v)
+{
+	struct kvm_pic *s;
+
+	if (kvm_apic_has_interrupt(v) == -1) {	/* LAPIC */
+		if (kvm_apic_accept_pic_intr(v)) {
+			s = pic_irqchip(v->kvm);	/* PIC */
+			return s->output;
+		} else
+			return 0;
+	}
+	return 1;
+}
+EXPORT_SYMBOL_GPL(kvm_cpu_has_interrupt);
+
+/*
+ * Read pending interrupt vector and intack.
+ */
+int kvm_cpu_get_interrupt(struct kvm_vcpu *v)
+{
+	struct kvm_pic *s;
+	int vector;
+
+	vector = kvm_get_apic_interrupt(v);	/* APIC */
+	if (vector == -1) {
+		if (kvm_apic_accept_pic_intr(v)) {
+			s = pic_irqchip(v->kvm);
+			s->output = 0;		/* PIC */
+			vector = kvm_pic_read_irq(s);
+		}
+	}
+	return vector;
+}
+EXPORT_SYMBOL_GPL(kvm_cpu_get_interrupt);
+
+static void vcpu_kick_intr(void *info)
+{
+#ifdef DEBUG
+	struct kvm_vcpu *vcpu = (struct kvm_vcpu *)info;
+	printk(KERN_DEBUG "vcpu_kick_intr %p \n", vcpu);
+#endif
+}
+
+void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
+{
+	int ipi_pcpu = vcpu->cpu;
+
+	if (waitqueue_active(&vcpu->wq)) {
+		wake_up_interruptible(&vcpu->wq);
+		++vcpu->stat.halt_wakeup;
+	}
+	if (vcpu->guest_mode)
+		smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0, 0);
+}
+
+void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu)
+{
+	kvm_inject_apic_timer_irqs(vcpu);
+	/* TODO: PIT, RTC etc. */
+}
+EXPORT_SYMBOL_GPL(kvm_inject_pending_timer_irqs);
+
+void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec)
+{
+	kvm_apic_timer_intr_post(vcpu, vec);
+	/* TODO: PIT, RTC etc. */
+}
+EXPORT_SYMBOL_GPL(kvm_timer_intr_post);
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
new file mode 100644
index 000000000000..6316638eec9f
--- /dev/null
+++ b/arch/x86/kvm/irq.h
@@ -0,0 +1,195 @@
+/*
+ * irq.h: in kernel interrupt controller related definitions
+ * Copyright (c) 2007, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ * Authors:
+ *   Yaozu (Eddie) Dong <Eddie.dong@intel.com>
+ *
+ */
+
+#ifndef __IRQ_H
+#define __IRQ_H
+
+#include <linux/mm_types.h>
+#include <linux/hrtimer.h>
+#include <linux/kvm_host.h>
+#include "iodev.h"
+
+struct kvm;
+struct kvm_vcpu;
+
+typedef void irq_request_func(void *opaque, int level);
+
+struct kvm_kpic_state {
+	u8 last_irr;	/* edge detection */
+	u8 irr;		/* interrupt request register */
+	u8 imr;		/* interrupt mask register */
+	u8 isr;		/* interrupt service register */
+	u8 priority_add;	/* highest irq priority */
+	u8 irq_base;
+	u8 read_reg_select;
+	u8 poll;
+	u8 special_mask;
+	u8 init_state;
+	u8 auto_eoi;
+	u8 rotate_on_auto_eoi;
+	u8 special_fully_nested_mode;
+	u8 init4;		/* true if 4 byte init */
+	u8 elcr;		/* PIIX edge/trigger selection */
+	u8 elcr_mask;
+	struct kvm_pic *pics_state;
+};
+
+struct kvm_pic {
+	struct kvm_kpic_state pics[2]; /* 0 is master pic, 1 is slave pic */
+	irq_request_func *irq_request;
+	void *irq_request_opaque;
+	int output;		/* intr from master PIC */
+	struct kvm_io_device dev;
+};
+
+struct kvm_pic *kvm_create_pic(struct kvm *kvm);
+void kvm_pic_set_irq(void *opaque, int irq, int level);
+int kvm_pic_read_irq(struct kvm_pic *s);
+void kvm_pic_update_irq(struct kvm_pic *s);
+
+#define IOAPIC_NUM_PINS  KVM_IOAPIC_NUM_PINS
+#define IOAPIC_VERSION_ID 0x11	/* IOAPIC version */
+#define IOAPIC_EDGE_TRIG  0
+#define IOAPIC_LEVEL_TRIG 1
+
+#define IOAPIC_DEFAULT_BASE_ADDRESS  0xfec00000
+#define IOAPIC_MEM_LENGTH            0x100
+
+/* Direct registers. */
+#define IOAPIC_REG_SELECT  0x00
+#define IOAPIC_REG_WINDOW  0x10
+#define IOAPIC_REG_EOI     0x40	/* IA64 IOSAPIC only */
+
+/* Indirect registers. */
+#define IOAPIC_REG_APIC_ID 0x00	/* x86 IOAPIC only */
+#define IOAPIC_REG_VERSION 0x01
+#define IOAPIC_REG_ARB_ID  0x02	/* x86 IOAPIC only */
+
+/*ioapic delivery mode*/
+#define	IOAPIC_FIXED			0x0
+#define	IOAPIC_LOWEST_PRIORITY		0x1
+#define	IOAPIC_PMI			0x2
+#define	IOAPIC_NMI			0x4
+#define	IOAPIC_INIT			0x5
+#define	IOAPIC_EXTINT			0x7
+
+struct kvm_ioapic {
+	u64 base_address;
+	u32 ioregsel;
+	u32 id;
+	u32 irr;
+	u32 pad;
+	union ioapic_redir_entry {
+		u64 bits;
+		struct {
+			u8 vector;
+			u8 delivery_mode:3;
+			u8 dest_mode:1;
+			u8 delivery_status:1;
+			u8 polarity:1;
+			u8 remote_irr:1;
+			u8 trig_mode:1;
+			u8 mask:1;
+			u8 reserve:7;
+			u8 reserved[4];
+			u8 dest_id;
+		} fields;
+	} redirtbl[IOAPIC_NUM_PINS];
+	struct kvm_io_device dev;
+	struct kvm *kvm;
+};
+
+struct kvm_lapic {
+	unsigned long base_address;
+	struct kvm_io_device dev;
+	struct {
+		atomic_t pending;
+		s64 period;	/* unit: ns */
+		u32 divide_count;
+		ktime_t last_update;
+		struct hrtimer dev;
+	} timer;
+	struct kvm_vcpu *vcpu;
+	struct page *regs_page;
+	void *regs;
+};
+
+#ifdef DEBUG
+#define ASSERT(x)  							\
+do {									\
+	if (!(x)) {							\
+		printk(KERN_EMERG "assertion failed %s: %d: %s\n",	\
+		       __FILE__, __LINE__, #x);				\
+		BUG();							\
+	}								\
+} while (0)
+#else
+#define ASSERT(x) do { } while (0)
+#endif
+
+static inline struct kvm_pic *pic_irqchip(struct kvm *kvm)
+{
+	return kvm->arch.vpic;
+}
+
+static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
+{
+	return kvm->arch.vioapic;
+}
+
+static inline int irqchip_in_kernel(struct kvm *kvm)
+{
+	return pic_irqchip(kvm) != NULL;
+}
+
+void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
+int kvm_apic_has_interrupt(struct kvm_vcpu *vcpu);
+int kvm_apic_accept_pic_intr(struct kvm_vcpu *vcpu);
+int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu);
+int kvm_create_lapic(struct kvm_vcpu *vcpu);
+void kvm_lapic_reset(struct kvm_vcpu *vcpu);
+void kvm_pic_reset(struct kvm_kpic_state *s);
+void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
+void kvm_free_lapic(struct kvm_vcpu *vcpu);
+u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu);
+void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8);
+void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value);
+
+struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
+				       unsigned long bitmap);
+u64 kvm_get_apic_base(struct kvm_vcpu *vcpu);
+void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data);
+int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest);
+void kvm_ioapic_update_eoi(struct kvm *kvm, int vector);
+int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda);
+int kvm_apic_set_irq(struct kvm_vcpu *vcpu, u8 vec, u8 trig);
+void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu);
+int kvm_ioapic_init(struct kvm *kvm);
+void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
+int kvm_lapic_enabled(struct kvm_vcpu *vcpu);
+int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);
+void kvm_apic_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
+void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
+void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
+void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
+void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu);
+
+#endif
diff --git a/arch/x86/kvm/kvm_svm.h b/arch/x86/kvm/kvm_svm.h
new file mode 100644
index 000000000000..ecdfe97e4635
--- /dev/null
+++ b/arch/x86/kvm/kvm_svm.h
@@ -0,0 +1,45 @@
+#ifndef __KVM_SVM_H
+#define __KVM_SVM_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/kvm_host.h>
+#include <asm/msr.h>
+
+#include "svm.h"
+
+static const u32 host_save_user_msrs[] = {
+#ifdef CONFIG_X86_64
+	MSR_STAR, MSR_LSTAR, MSR_CSTAR, MSR_SYSCALL_MASK, MSR_KERNEL_GS_BASE,
+	MSR_FS_BASE,
+#endif
+	MSR_IA32_SYSENTER_CS, MSR_IA32_SYSENTER_ESP, MSR_IA32_SYSENTER_EIP,
+};
+
+#define NR_HOST_SAVE_USER_MSRS ARRAY_SIZE(host_save_user_msrs)
+#define NUM_DB_REGS 4
+
+struct kvm_vcpu;
+
+struct vcpu_svm {
+	struct kvm_vcpu vcpu;
+	struct vmcb *vmcb;
+	unsigned long vmcb_pa;
+	struct svm_cpu_data *svm_data;
+	uint64_t asid_generation;
+
+	unsigned long db_regs[NUM_DB_REGS];
+
+	u64 next_rip;
+
+	u64 host_user_msrs[NR_HOST_SAVE_USER_MSRS];
+	u64 host_gs_base;
+	unsigned long host_cr2;
+	unsigned long host_db_regs[NUM_DB_REGS];
+	unsigned long host_dr6;
+	unsigned long host_dr7;
+};
+
+#endif
+
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
new file mode 100644
index 000000000000..4076331b01ee
--- /dev/null
+++ b/arch/x86/kvm/lapic.c
@@ -0,0 +1,1085 @@
+
+/*
+ * Local APIC virtualization
+ *
+ * Copyright (C) 2006 Qumranet, Inc.
+ * Copyright (C) 2007 Novell
+ * Copyright (C) 2007 Intel
+ *
+ * Authors:
+ *   Dor Laor <dor.laor@qumranet.com>
+ *   Gregory Haskins <ghaskins@novell.com>
+ *   Yaozu (Eddie) Dong <eddie.dong@intel.com>
+ *
+ * Based on Xen 3.1 code, Copyright (c) 2004, Intel Corporation.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ */
+
+#include <linux/kvm_host.h>
+#include <linux/kvm.h>
+#include <linux/mm.h>
+#include <linux/highmem.h>
+#include <linux/smp.h>
+#include <linux/hrtimer.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <asm/processor.h>
+#include <asm/msr.h>
+#include <asm/page.h>
+#include <asm/current.h>
+#include <asm/apicdef.h>
+#include <asm/atomic.h>
+#include <asm/div64.h>
+#include "irq.h"
+
+#define PRId64 "d"
+#define PRIx64 "llx"
+#define PRIu64 "u"
+#define PRIo64 "o"
+
+#define APIC_BUS_CYCLE_NS 1
+
+/* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */
+#define apic_debug(fmt, arg...)
+
+#define APIC_LVT_NUM			6
+/* 14 is the version for Xeon and Pentium 8.4.8*/
+#define APIC_VERSION			(0x14UL | ((APIC_LVT_NUM - 1) << 16))
+#define LAPIC_MMIO_LENGTH		(1 << 12)
+/* followed define is not in apicdef.h */
+#define APIC_SHORT_MASK			0xc0000
+#define APIC_DEST_NOSHORT		0x0
+#define APIC_DEST_MASK			0x800
+#define MAX_APIC_VECTOR			256
+
+#define VEC_POS(v) ((v) & (32 - 1))
+#define REG_POS(v) (((v) >> 5) << 4)
+
+static inline u32 apic_get_reg(struct kvm_lapic *apic, int reg_off)
+{
+	return *((u32 *) (apic->regs + reg_off));
+}
+
+static inline void apic_set_reg(struct kvm_lapic *apic, int reg_off, u32 val)
+{
+	*((u32 *) (apic->regs + reg_off)) = val;
+}
+
+static inline int apic_test_and_set_vector(int vec, void *bitmap)
+{
+	return test_and_set_bit(VEC_POS(vec), (bitmap) + REG_POS(vec));
+}
+
+static inline int apic_test_and_clear_vector(int vec, void *bitmap)
+{
+	return test_and_clear_bit(VEC_POS(vec), (bitmap) + REG_POS(vec));
+}
+
+static inline void apic_set_vector(int vec, void *bitmap)
+{
+	set_bit(VEC_POS(vec), (bitmap) + REG_POS(vec));
+}
+
+static inline void apic_clear_vector(int vec, void *bitmap)
+{
+	clear_bit(VEC_POS(vec), (bitmap) + REG_POS(vec));
+}
+
+static inline int apic_hw_enabled(struct kvm_lapic *apic)
+{
+	return (apic)->vcpu->arch.apic_base & MSR_IA32_APICBASE_ENABLE;
+}
+
+static inline int  apic_sw_enabled(struct kvm_lapic *apic)
+{
+	return apic_get_reg(apic, APIC_SPIV) & APIC_SPIV_APIC_ENABLED;
+}
+
+static inline int apic_enabled(struct kvm_lapic *apic)
+{
+	return apic_sw_enabled(apic) &&	apic_hw_enabled(apic);
+}
+
+#define LVT_MASK	\
+	(APIC_LVT_MASKED | APIC_SEND_PENDING | APIC_VECTOR_MASK)
+
+#define LINT_MASK	\
+	(LVT_MASK | APIC_MODE_MASK | APIC_INPUT_POLARITY | \
+	 APIC_LVT_REMOTE_IRR | APIC_LVT_LEVEL_TRIGGER)
+
+static inline int kvm_apic_id(struct kvm_lapic *apic)
+{
+	return (apic_get_reg(apic, APIC_ID) >> 24) & 0xff;
+}
+
+static inline int apic_lvt_enabled(struct kvm_lapic *apic, int lvt_type)
+{
+	return !(apic_get_reg(apic, lvt_type) & APIC_LVT_MASKED);
+}
+
+static inline int apic_lvt_vector(struct kvm_lapic *apic, int lvt_type)
+{
+	return apic_get_reg(apic, lvt_type) & APIC_VECTOR_MASK;
+}
+
+static inline int apic_lvtt_period(struct kvm_lapic *apic)
+{
+	return apic_get_reg(apic, APIC_LVTT) & APIC_LVT_TIMER_PERIODIC;
+}
+
+static unsigned int apic_lvt_mask[APIC_LVT_NUM] = {
+	LVT_MASK | APIC_LVT_TIMER_PERIODIC,	/* LVTT */
+	LVT_MASK | APIC_MODE_MASK,	/* LVTTHMR */
+	LVT_MASK | APIC_MODE_MASK,	/* LVTPC */
+	LINT_MASK, LINT_MASK,	/* LVT0-1 */
+	LVT_MASK		/* LVTERR */
+};
+
+static int find_highest_vector(void *bitmap)
+{
+	u32 *word = bitmap;
+	int word_offset = MAX_APIC_VECTOR >> 5;
+
+	while ((word_offset != 0) && (word[(--word_offset) << 2] == 0))
+		continue;
+
+	if (likely(!word_offset && !word[0]))
+		return -1;
+	else
+		return fls(word[word_offset << 2]) - 1 + (word_offset << 5);
+}
+
+static inline int apic_test_and_set_irr(int vec, struct kvm_lapic *apic)
+{
+	return apic_test_and_set_vector(vec, apic->regs + APIC_IRR);
+}
+
+static inline void apic_clear_irr(int vec, struct kvm_lapic *apic)
+{
+	apic_clear_vector(vec, apic->regs + APIC_IRR);
+}
+
+static inline int apic_find_highest_irr(struct kvm_lapic *apic)
+{
+	int result;
+
+	result = find_highest_vector(apic->regs + APIC_IRR);
+	ASSERT(result == -1 || result >= 16);
+
+	return result;
+}
+
+int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+	int highest_irr;
+
+	if (!apic)
+		return 0;
+	highest_irr = apic_find_highest_irr(apic);
+
+	return highest_irr;
+}
+EXPORT_SYMBOL_GPL(kvm_lapic_find_highest_irr);
+
+int kvm_apic_set_irq(struct kvm_vcpu *vcpu, u8 vec, u8 trig)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+
+	if (!apic_test_and_set_irr(vec, apic)) {
+		/* a new pending irq is set in IRR */
+		if (trig)
+			apic_set_vector(vec, apic->regs + APIC_TMR);
+		else
+			apic_clear_vector(vec, apic->regs + APIC_TMR);
+		kvm_vcpu_kick(apic->vcpu);
+		return 1;
+	}
+	return 0;
+}
+
+static inline int apic_find_highest_isr(struct kvm_lapic *apic)
+{
+	int result;
+
+	result = find_highest_vector(apic->regs + APIC_ISR);
+	ASSERT(result == -1 || result >= 16);
+
+	return result;
+}
+
+static void apic_update_ppr(struct kvm_lapic *apic)
+{
+	u32 tpr, isrv, ppr;
+	int isr;
+
+	tpr = apic_get_reg(apic, APIC_TASKPRI);
+	isr = apic_find_highest_isr(apic);
+	isrv = (isr != -1) ? isr : 0;
+
+	if ((tpr & 0xf0) >= (isrv & 0xf0))
+		ppr = tpr & 0xff;
+	else
+		ppr = isrv & 0xf0;
+
+	apic_debug("vlapic %p, ppr 0x%x, isr 0x%x, isrv 0x%x",
+		   apic, ppr, isr, isrv);
+
+	apic_set_reg(apic, APIC_PROCPRI, ppr);
+}
+
+static void apic_set_tpr(struct kvm_lapic *apic, u32 tpr)
+{
+	apic_set_reg(apic, APIC_TASKPRI, tpr);
+	apic_update_ppr(apic);
+}
+
+int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest)
+{
+	return kvm_apic_id(apic) == dest;
+}
+
+int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda)
+{
+	int result = 0;
+	u8 logical_id;
+
+	logical_id = GET_APIC_LOGICAL_ID(apic_get_reg(apic, APIC_LDR));
+
+	switch (apic_get_reg(apic, APIC_DFR)) {
+	case APIC_DFR_FLAT:
+		if (logical_id & mda)
+			result = 1;
+		break;
+	case APIC_DFR_CLUSTER:
+		if (((logical_id >> 4) == (mda >> 0x4))
+		    && (logical_id & mda & 0xf))
+			result = 1;
+		break;
+	default:
+		printk(KERN_WARNING "Bad DFR vcpu %d: %08x\n",
+		       apic->vcpu->vcpu_id, apic_get_reg(apic, APIC_DFR));
+		break;
+	}
+
+	return result;
+}
+
+static int apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
+			   int short_hand, int dest, int dest_mode)
+{
+	int result = 0;
+	struct kvm_lapic *target = vcpu->arch.apic;
+
+	apic_debug("target %p, source %p, dest 0x%x, "
+		   "dest_mode 0x%x, short_hand 0x%x",
+		   target, source, dest, dest_mode, short_hand);
+
+	ASSERT(!target);
+	switch (short_hand) {
+	case APIC_DEST_NOSHORT:
+		if (dest_mode == 0) {
+			/* Physical mode. */
+			if ((dest == 0xFF) || (dest == kvm_apic_id(target)))
+				result = 1;
+		} else
+			/* Logical mode. */
+			result = kvm_apic_match_logical_addr(target, dest);
+		break;
+	case APIC_DEST_SELF:
+		if (target == source)
+			result = 1;
+		break;
+	case APIC_DEST_ALLINC:
+		result = 1;
+		break;
+	case APIC_DEST_ALLBUT:
+		if (target != source)
+			result = 1;
+		break;
+	default:
+		printk(KERN_WARNING "Bad dest shorthand value %x\n",
+		       short_hand);
+		break;
+	}
+
+	return result;
+}
+
+/*
+ * Add a pending IRQ into lapic.
+ * Return 1 if successfully added and 0 if discarded.
+ */
+static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode,
+			     int vector, int level, int trig_mode)
+{
+	int orig_irr, result = 0;
+	struct kvm_vcpu *vcpu = apic->vcpu;
+
+	switch (delivery_mode) {
+	case APIC_DM_FIXED:
+	case APIC_DM_LOWEST:
+		/* FIXME add logic for vcpu on reset */
+		if (unlikely(!apic_enabled(apic)))
+			break;
+
+		orig_irr = apic_test_and_set_irr(vector, apic);
+		if (orig_irr && trig_mode) {
+			apic_debug("level trig mode repeatedly for vector %d",
+				   vector);
+			break;
+		}
+
+		if (trig_mode) {
+			apic_debug("level trig mode for vector %d", vector);
+			apic_set_vector(vector, apic->regs + APIC_TMR);
+		} else
+			apic_clear_vector(vector, apic->regs + APIC_TMR);
+
+		if (vcpu->arch.mp_state == VCPU_MP_STATE_RUNNABLE)
+			kvm_vcpu_kick(vcpu);
+		else if (vcpu->arch.mp_state == VCPU_MP_STATE_HALTED) {
+			vcpu->arch.mp_state = VCPU_MP_STATE_RUNNABLE;
+			if (waitqueue_active(&vcpu->wq))
+				wake_up_interruptible(&vcpu->wq);
+		}
+
+		result = (orig_irr == 0);
+		break;
+
+	case APIC_DM_REMRD:
+		printk(KERN_DEBUG "Ignoring delivery mode 3\n");
+		break;
+
+	case APIC_DM_SMI:
+		printk(KERN_DEBUG "Ignoring guest SMI\n");
+		break;
+	case APIC_DM_NMI:
+		printk(KERN_DEBUG "Ignoring guest NMI\n");
+		break;
+
+	case APIC_DM_INIT:
+		if (level) {
+			if (vcpu->arch.mp_state == VCPU_MP_STATE_RUNNABLE)
+				printk(KERN_DEBUG
+				       "INIT on a runnable vcpu %d\n",
+				       vcpu->vcpu_id);
+			vcpu->arch.mp_state = VCPU_MP_STATE_INIT_RECEIVED;
+			kvm_vcpu_kick(vcpu);
+		} else {
+			printk(KERN_DEBUG
+			       "Ignoring de-assert INIT to vcpu %d\n",
+			       vcpu->vcpu_id);
+		}
+
+		break;
+
+	case APIC_DM_STARTUP:
+		printk(KERN_DEBUG "SIPI to vcpu %d vector 0x%02x\n",
+		       vcpu->vcpu_id, vector);
+		if (vcpu->arch.mp_state == VCPU_MP_STATE_INIT_RECEIVED) {
+			vcpu->arch.sipi_vector = vector;
+			vcpu->arch.mp_state = VCPU_MP_STATE_SIPI_RECEIVED;
+			if (waitqueue_active(&vcpu->wq))
+				wake_up_interruptible(&vcpu->wq);
+		}
+		break;
+
+	default:
+		printk(KERN_ERR "TODO: unsupported delivery mode %x\n",
+		       delivery_mode);
+		break;
+	}
+	return result;
+}
+
+static struct kvm_lapic *kvm_apic_round_robin(struct kvm *kvm, u8 vector,
+				       unsigned long bitmap)
+{
+	int last;
+	int next;
+	struct kvm_lapic *apic = NULL;
+
+	last = kvm->arch.round_robin_prev_vcpu;
+	next = last;
+
+	do {
+		if (++next == KVM_MAX_VCPUS)
+			next = 0;
+		if (kvm->vcpus[next] == NULL || !test_bit(next, &bitmap))
+			continue;
+		apic = kvm->vcpus[next]->arch.apic;
+		if (apic && apic_enabled(apic))
+			break;
+		apic = NULL;
+	} while (next != last);
+	kvm->arch.round_robin_prev_vcpu = next;
+
+	if (!apic)
+		printk(KERN_DEBUG "vcpu not ready for apic_round_robin\n");
+
+	return apic;
+}
+
+struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
+		unsigned long bitmap)
+{
+	struct kvm_lapic *apic;
+
+	apic = kvm_apic_round_robin(kvm, vector, bitmap);
+	if (apic)
+		return apic->vcpu;
+	return NULL;
+}
+
+static void apic_set_eoi(struct kvm_lapic *apic)
+{
+	int vector = apic_find_highest_isr(apic);
+
+	/*
+	 * Not every write EOI will has corresponding ISR,
+	 * one example is when Kernel check timer on setup_IO_APIC
+	 */
+	if (vector == -1)
+		return;
+
+	apic_clear_vector(vector, apic->regs + APIC_ISR);
+	apic_update_ppr(apic);
+
+	if (apic_test_and_clear_vector(vector, apic->regs + APIC_TMR))
+		kvm_ioapic_update_eoi(apic->vcpu->kvm, vector);
+}
+
+static void apic_send_ipi(struct kvm_lapic *apic)
+{
+	u32 icr_low = apic_get_reg(apic, APIC_ICR);
+	u32 icr_high = apic_get_reg(apic, APIC_ICR2);
+
+	unsigned int dest = GET_APIC_DEST_FIELD(icr_high);
+	unsigned int short_hand = icr_low & APIC_SHORT_MASK;
+	unsigned int trig_mode = icr_low & APIC_INT_LEVELTRIG;
+	unsigned int level = icr_low & APIC_INT_ASSERT;
+	unsigned int dest_mode = icr_low & APIC_DEST_MASK;
+	unsigned int delivery_mode = icr_low & APIC_MODE_MASK;
+	unsigned int vector = icr_low & APIC_VECTOR_MASK;
+
+	struct kvm_vcpu *target;
+	struct kvm_vcpu *vcpu;
+	unsigned long lpr_map = 0;
+	int i;
+
+	apic_debug("icr_high 0x%x, icr_low 0x%x, "
+		   "short_hand 0x%x, dest 0x%x, trig_mode 0x%x, level 0x%x, "
+		   "dest_mode 0x%x, delivery_mode 0x%x, vector 0x%x\n",
+		   icr_high, icr_low, short_hand, dest,
+		   trig_mode, level, dest_mode, delivery_mode, vector);
+
+	for (i = 0; i < KVM_MAX_VCPUS; i++) {
+		vcpu = apic->vcpu->kvm->vcpus[i];
+		if (!vcpu)
+			continue;
+
+		if (vcpu->arch.apic &&
+		    apic_match_dest(vcpu, apic, short_hand, dest, dest_mode)) {
+			if (delivery_mode == APIC_DM_LOWEST)
+				set_bit(vcpu->vcpu_id, &lpr_map);
+			else
+				__apic_accept_irq(vcpu->arch.apic, delivery_mode,
+						  vector, level, trig_mode);
+		}
+	}
+
+	if (delivery_mode == APIC_DM_LOWEST) {
+		target = kvm_get_lowest_prio_vcpu(vcpu->kvm, vector, lpr_map);
+		if (target != NULL)
+			__apic_accept_irq(target->arch.apic, delivery_mode,
+					  vector, level, trig_mode);
+	}
+}
+
+static u32 apic_get_tmcct(struct kvm_lapic *apic)
+{
+	u64 counter_passed;
+	ktime_t passed, now;
+	u32 tmcct;
+
+	ASSERT(apic != NULL);
+
+	now = apic->timer.dev.base->get_time();
+	tmcct = apic_get_reg(apic, APIC_TMICT);
+
+	/* if initial count is 0, current count should also be 0 */
+	if (tmcct == 0)
+		return 0;
+
+	if (unlikely(ktime_to_ns(now) <=
+		ktime_to_ns(apic->timer.last_update))) {
+		/* Wrap around */
+		passed = ktime_add(( {
+				    (ktime_t) {
+				    .tv64 = KTIME_MAX -
+				    (apic->timer.last_update).tv64}; }
+				   ), now);
+		apic_debug("time elapsed\n");
+	} else
+		passed = ktime_sub(now, apic->timer.last_update);
+
+	counter_passed = div64_64(ktime_to_ns(passed),
+				  (APIC_BUS_CYCLE_NS * apic->timer.divide_count));
+
+	if (counter_passed > tmcct) {
+		if (unlikely(!apic_lvtt_period(apic))) {
+			/* one-shot timers stick at 0 until reset */
+			tmcct = 0;
+		} else {
+			/*
+			 * periodic timers reset to APIC_TMICT when they
+			 * hit 0. The while loop simulates this happening N
+			 * times. (counter_passed %= tmcct) would also work,
+			 * but might be slower or not work on 32-bit??
+			 */
+			while (counter_passed > tmcct)
+				counter_passed -= tmcct;
+			tmcct -= counter_passed;
+		}
+	} else {
+		tmcct -= counter_passed;
+	}
+
+	return tmcct;
+}
+
+static u32 __apic_read(struct kvm_lapic *apic, unsigned int offset)
+{
+	u32 val = 0;
+
+	if (offset >= LAPIC_MMIO_LENGTH)
+		return 0;
+
+	switch (offset) {
+	case APIC_ARBPRI:
+		printk(KERN_WARNING "Access APIC ARBPRI register "
+		       "which is for P6\n");
+		break;
+
+	case APIC_TMCCT:	/* Timer CCR */
+		val = apic_get_tmcct(apic);
+		break;
+
+	default:
+		apic_update_ppr(apic);
+		val = apic_get_reg(apic, offset);
+		break;
+	}
+
+	return val;
+}
+
+static void apic_mmio_read(struct kvm_io_device *this,
+			   gpa_t address, int len, void *data)
+{
+	struct kvm_lapic *apic = (struct kvm_lapic *)this->private;
+	unsigned int offset = address - apic->base_address;
+	unsigned char alignment = offset & 0xf;
+	u32 result;
+
+	if ((alignment + len) > 4) {
+		printk(KERN_ERR "KVM_APIC_READ: alignment error %lx %d",
+		       (unsigned long)address, len);
+		return;
+	}
+	result = __apic_read(apic, offset & ~0xf);
+
+	switch (len) {
+	case 1:
+	case 2:
+	case 4:
+		memcpy(data, (char *)&result + alignment, len);
+		break;
+	default:
+		printk(KERN_ERR "Local APIC read with len = %x, "
+		       "should be 1,2, or 4 instead\n", len);
+		break;
+	}
+}
+
+static void update_divide_count(struct kvm_lapic *apic)
+{
+	u32 tmp1, tmp2, tdcr;
+
+	tdcr = apic_get_reg(apic, APIC_TDCR);
+	tmp1 = tdcr & 0xf;
+	tmp2 = ((tmp1 & 0x3) | ((tmp1 & 0x8) >> 1)) + 1;
+	apic->timer.divide_count = 0x1 << (tmp2 & 0x7);
+
+	apic_debug("timer divide count is 0x%x\n",
+				   apic->timer.divide_count);
+}
+
+static void start_apic_timer(struct kvm_lapic *apic)
+{
+	ktime_t now = apic->timer.dev.base->get_time();
+
+	apic->timer.last_update = now;
+
+	apic->timer.period = apic_get_reg(apic, APIC_TMICT) *
+		    APIC_BUS_CYCLE_NS * apic->timer.divide_count;
+	atomic_set(&apic->timer.pending, 0);
+	hrtimer_start(&apic->timer.dev,
+		      ktime_add_ns(now, apic->timer.period),
+		      HRTIMER_MODE_ABS);
+
+	apic_debug("%s: bus cycle is %" PRId64 "ns, now 0x%016"
+			   PRIx64 ", "
+			   "timer initial count 0x%x, period %lldns, "
+			   "expire @ 0x%016" PRIx64 ".\n", __FUNCTION__,
+			   APIC_BUS_CYCLE_NS, ktime_to_ns(now),
+			   apic_get_reg(apic, APIC_TMICT),
+			   apic->timer.period,
+			   ktime_to_ns(ktime_add_ns(now,
+					apic->timer.period)));
+}
+
+static void apic_mmio_write(struct kvm_io_device *this,
+			    gpa_t address, int len, const void *data)
+{
+	struct kvm_lapic *apic = (struct kvm_lapic *)this->private;
+	unsigned int offset = address - apic->base_address;
+	unsigned char alignment = offset & 0xf;
+	u32 val;
+
+	/*
+	 * APIC register must be aligned on 128-bits boundary.
+	 * 32/64/128 bits registers must be accessed thru 32 bits.
+	 * Refer SDM 8.4.1
+	 */
+	if (len != 4 || alignment) {
+		if (printk_ratelimit())
+			printk(KERN_ERR "apic write: bad size=%d %lx\n",
+			       len, (long)address);
+		return;
+	}
+
+	val = *(u32 *) data;
+
+	/* too common printing */
+	if (offset != APIC_EOI)
+		apic_debug("%s: offset 0x%x with length 0x%x, and value is "
+			   "0x%x\n", __FUNCTION__, offset, len, val);
+
+	offset &= 0xff0;
+
+	switch (offset) {
+	case APIC_ID:		/* Local APIC ID */
+		apic_set_reg(apic, APIC_ID, val);
+		break;
+
+	case APIC_TASKPRI:
+		apic_set_tpr(apic, val & 0xff);
+		break;
+
+	case APIC_EOI:
+		apic_set_eoi(apic);
+		break;
+
+	case APIC_LDR:
+		apic_set_reg(apic, APIC_LDR, val & APIC_LDR_MASK);
+		break;
+
+	case APIC_DFR:
+		apic_set_reg(apic, APIC_DFR, val | 0x0FFFFFFF);
+		break;
+
+	case APIC_SPIV:
+		apic_set_reg(apic, APIC_SPIV, val & 0x3ff);
+		if (!(val & APIC_SPIV_APIC_ENABLED)) {
+			int i;
+			u32 lvt_val;
+
+			for (i = 0; i < APIC_LVT_NUM; i++) {
+				lvt_val = apic_get_reg(apic,
+						       APIC_LVTT + 0x10 * i);
+				apic_set_reg(apic, APIC_LVTT + 0x10 * i,
+					     lvt_val | APIC_LVT_MASKED);
+			}
+			atomic_set(&apic->timer.pending, 0);
+
+		}
+		break;
+
+	case APIC_ICR:
+		/* No delay here, so we always clear the pending bit */
+		apic_set_reg(apic, APIC_ICR, val & ~(1 << 12));
+		apic_send_ipi(apic);
+		break;
+
+	case APIC_ICR2:
+		apic_set_reg(apic, APIC_ICR2, val & 0xff000000);
+		break;
+
+	case APIC_LVTT:
+	case APIC_LVTTHMR:
+	case APIC_LVTPC:
+	case APIC_LVT0:
+	case APIC_LVT1:
+	case APIC_LVTERR:
+		/* TODO: Check vector */
+		if (!apic_sw_enabled(apic))
+			val |= APIC_LVT_MASKED;
+
+		val &= apic_lvt_mask[(offset - APIC_LVTT) >> 4];
+		apic_set_reg(apic, offset, val);
+
+		break;
+
+	case APIC_TMICT:
+		hrtimer_cancel(&apic->timer.dev);
+		apic_set_reg(apic, APIC_TMICT, val);
+		start_apic_timer(apic);
+		return;
+
+	case APIC_TDCR:
+		if (val & 4)
+			printk(KERN_ERR "KVM_WRITE:TDCR %x\n", val);
+		apic_set_reg(apic, APIC_TDCR, val);
+		update_divide_count(apic);
+		break;
+
+	default:
+		apic_debug("Local APIC Write to read-only register %x\n",
+			   offset);
+		break;
+	}
+
+}
+
+static int apic_mmio_range(struct kvm_io_device *this, gpa_t addr)
+{
+	struct kvm_lapic *apic = (struct kvm_lapic *)this->private;
+	int ret = 0;
+
+
+	if (apic_hw_enabled(apic) &&
+	    (addr >= apic->base_address) &&
+	    (addr < (apic->base_address + LAPIC_MMIO_LENGTH)))
+		ret = 1;
+
+	return ret;
+}
+
+void kvm_free_lapic(struct kvm_vcpu *vcpu)
+{
+	if (!vcpu->arch.apic)
+		return;
+
+	hrtimer_cancel(&vcpu->arch.apic->timer.dev);
+
+	if (vcpu->arch.apic->regs_page)
+		__free_page(vcpu->arch.apic->regs_page);
+
+	kfree(vcpu->arch.apic);
+}
+
+/*
+ *----------------------------------------------------------------------
+ * LAPIC interface
+ *----------------------------------------------------------------------
+ */
+
+void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+
+	if (!apic)
+		return;
+	apic_set_tpr(apic, ((cr8 & 0x0f) << 4));
+}
+
+u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+	u64 tpr;
+
+	if (!apic)
+		return 0;
+	tpr = (u64) apic_get_reg(apic, APIC_TASKPRI);
+
+	return (tpr & 0xf0) >> 4;
+}
+EXPORT_SYMBOL_GPL(kvm_lapic_get_cr8);
+
+void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+
+	if (!apic) {
+		value |= MSR_IA32_APICBASE_BSP;
+		vcpu->arch.apic_base = value;
+		return;
+	}
+	if (apic->vcpu->vcpu_id)
+		value &= ~MSR_IA32_APICBASE_BSP;
+
+	vcpu->arch.apic_base = value;
+	apic->base_address = apic->vcpu->arch.apic_base &
+			     MSR_IA32_APICBASE_BASE;
+
+	/* with FSB delivery interrupt, we can restart APIC functionality */
+	apic_debug("apic base msr is 0x%016" PRIx64 ", and base address is "
+		   "0x%lx.\n", apic->vcpu->arch.apic_base, apic->base_address);
+
+}
+
+u64 kvm_lapic_get_base(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.apic_base;
+}
+EXPORT_SYMBOL_GPL(kvm_lapic_get_base);
+
+void kvm_lapic_reset(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic;
+	int i;
+
+	apic_debug("%s\n", __FUNCTION__);
+
+	ASSERT(vcpu);
+	apic = vcpu->arch.apic;
+	ASSERT(apic != NULL);
+
+	/* Stop the timer in case it's a reset to an active apic */
+	hrtimer_cancel(&apic->timer.dev);
+
+	apic_set_reg(apic, APIC_ID, vcpu->vcpu_id << 24);
+	apic_set_reg(apic, APIC_LVR, APIC_VERSION);
+
+	for (i = 0; i < APIC_LVT_NUM; i++)
+		apic_set_reg(apic, APIC_LVTT + 0x10 * i, APIC_LVT_MASKED);
+	apic_set_reg(apic, APIC_LVT0,
+		     SET_APIC_DELIVERY_MODE(0, APIC_MODE_EXTINT));
+
+	apic_set_reg(apic, APIC_DFR, 0xffffffffU);
+	apic_set_reg(apic, APIC_SPIV, 0xff);
+	apic_set_reg(apic, APIC_TASKPRI, 0);
+	apic_set_reg(apic, APIC_LDR, 0);
+	apic_set_reg(apic, APIC_ESR, 0);
+	apic_set_reg(apic, APIC_ICR, 0);
+	apic_set_reg(apic, APIC_ICR2, 0);
+	apic_set_reg(apic, APIC_TDCR, 0);
+	apic_set_reg(apic, APIC_TMICT, 0);
+	for (i = 0; i < 8; i++) {
+		apic_set_reg(apic, APIC_IRR + 0x10 * i, 0);
+		apic_set_reg(apic, APIC_ISR + 0x10 * i, 0);
+		apic_set_reg(apic, APIC_TMR + 0x10 * i, 0);
+	}
+	update_divide_count(apic);
+	atomic_set(&apic->timer.pending, 0);
+	if (vcpu->vcpu_id == 0)
+		vcpu->arch.apic_base |= MSR_IA32_APICBASE_BSP;
+	apic_update_ppr(apic);
+
+	apic_debug(KERN_INFO "%s: vcpu=%p, id=%d, base_msr="
+		   "0x%016" PRIx64 ", base_address=0x%0lx.\n", __FUNCTION__,
+		   vcpu, kvm_apic_id(apic),
+		   vcpu->arch.apic_base, apic->base_address);
+}
+EXPORT_SYMBOL_GPL(kvm_lapic_reset);
+
+int kvm_lapic_enabled(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+	int ret = 0;
+
+	if (!apic)
+		return 0;
+	ret = apic_enabled(apic);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(kvm_lapic_enabled);
+
+/*
+ *----------------------------------------------------------------------
+ * timer interface
+ *----------------------------------------------------------------------
+ */
+
+/* TODO: make sure __apic_timer_fn runs in current pCPU */
+static int __apic_timer_fn(struct kvm_lapic *apic)
+{
+	int result = 0;
+	wait_queue_head_t *q = &apic->vcpu->wq;
+
+	atomic_inc(&apic->timer.pending);
+	if (waitqueue_active(q)) {
+		apic->vcpu->arch.mp_state = VCPU_MP_STATE_RUNNABLE;
+		wake_up_interruptible(q);
+	}
+	if (apic_lvtt_period(apic)) {
+		result = 1;
+		apic->timer.dev.expires = ktime_add_ns(
+					apic->timer.dev.expires,
+					apic->timer.period);
+	}
+	return result;
+}
+
+static int __inject_apic_timer_irq(struct kvm_lapic *apic)
+{
+	int vector;
+
+	vector = apic_lvt_vector(apic, APIC_LVTT);
+	return __apic_accept_irq(apic, APIC_DM_FIXED, vector, 1, 0);
+}
+
+static enum hrtimer_restart apic_timer_fn(struct hrtimer *data)
+{
+	struct kvm_lapic *apic;
+	int restart_timer = 0;
+
+	apic = container_of(data, struct kvm_lapic, timer.dev);
+
+	restart_timer = __apic_timer_fn(apic);
+
+	if (restart_timer)
+		return HRTIMER_RESTART;
+	else
+		return HRTIMER_NORESTART;
+}
+
+int kvm_create_lapic(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic;
+
+	ASSERT(vcpu != NULL);
+	apic_debug("apic_init %d\n", vcpu->vcpu_id);
+
+	apic = kzalloc(sizeof(*apic), GFP_KERNEL);
+	if (!apic)
+		goto nomem;
+
+	vcpu->arch.apic = apic;
+
+	apic->regs_page = alloc_page(GFP_KERNEL);
+	if (apic->regs_page == NULL) {
+		printk(KERN_ERR "malloc apic regs error for vcpu %x\n",
+		       vcpu->vcpu_id);
+		goto nomem_free_apic;
+	}
+	apic->regs = page_address(apic->regs_page);
+	memset(apic->regs, 0, PAGE_SIZE);
+	apic->vcpu = vcpu;
+
+	hrtimer_init(&apic->timer.dev, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
+	apic->timer.dev.function = apic_timer_fn;
+	apic->base_address = APIC_DEFAULT_PHYS_BASE;
+	vcpu->arch.apic_base = APIC_DEFAULT_PHYS_BASE;
+
+	kvm_lapic_reset(vcpu);
+	apic->dev.read = apic_mmio_read;
+	apic->dev.write = apic_mmio_write;
+	apic->dev.in_range = apic_mmio_range;
+	apic->dev.private = apic;
+
+	return 0;
+nomem_free_apic:
+	kfree(apic);
+nomem:
+	return -ENOMEM;
+}
+EXPORT_SYMBOL_GPL(kvm_create_lapic);
+
+int kvm_apic_has_interrupt(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+	int highest_irr;
+
+	if (!apic || !apic_enabled(apic))
+		return -1;
+
+	apic_update_ppr(apic);
+	highest_irr = apic_find_highest_irr(apic);
+	if ((highest_irr == -1) ||
+	    ((highest_irr & 0xF0) <= apic_get_reg(apic, APIC_PROCPRI)))
+		return -1;
+	return highest_irr;
+}
+
+int kvm_apic_accept_pic_intr(struct kvm_vcpu *vcpu)
+{
+	u32 lvt0 = apic_get_reg(vcpu->arch.apic, APIC_LVT0);
+	int r = 0;
+
+	if (vcpu->vcpu_id == 0) {
+		if (!apic_hw_enabled(vcpu->arch.apic))
+			r = 1;
+		if ((lvt0 & APIC_LVT_MASKED) == 0 &&
+		    GET_APIC_DELIVERY_MODE(lvt0) == APIC_MODE_EXTINT)
+			r = 1;
+	}
+	return r;
+}
+
+void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+
+	if (apic && apic_lvt_enabled(apic, APIC_LVTT) &&
+		atomic_read(&apic->timer.pending) > 0) {
+		if (__inject_apic_timer_irq(apic))
+			atomic_dec(&apic->timer.pending);
+	}
+}
+
+void kvm_apic_timer_intr_post(struct kvm_vcpu *vcpu, int vec)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+
+	if (apic && apic_lvt_vector(apic, APIC_LVTT) == vec)
+		apic->timer.last_update = ktime_add_ns(
+				apic->timer.last_update,
+				apic->timer.period);
+}
+
+int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu)
+{
+	int vector = kvm_apic_has_interrupt(vcpu);
+	struct kvm_lapic *apic = vcpu->arch.apic;
+
+	if (vector == -1)
+		return -1;
+
+	apic_set_vector(vector, apic->regs + APIC_ISR);
+	apic_update_ppr(apic);
+	apic_clear_irr(vector, apic);
+	return vector;
+}
+
+void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+
+	apic->base_address = vcpu->arch.apic_base &
+			     MSR_IA32_APICBASE_BASE;
+	apic_set_reg(apic, APIC_LVR, APIC_VERSION);
+	apic_update_ppr(apic);
+	hrtimer_cancel(&apic->timer.dev);
+	update_divide_count(apic);
+	start_apic_timer(apic);
+}
+
+void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+	struct hrtimer *timer;
+
+	if (!apic)
+		return;
+
+	timer = &apic->timer.dev;
+	if (hrtimer_cancel(timer))
+		hrtimer_start(timer, timer->expires, HRTIMER_MODE_ABS);
+}
+EXPORT_SYMBOL_GPL(kvm_migrate_apic_timer);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
new file mode 100644
index 000000000000..401eb7ce3207
--- /dev/null
+++ b/arch/x86/kvm/mmu.c
@@ -0,0 +1,1805 @@
+/*
+ * Kernel-based Virtual Machine driver for Linux
+ *
+ * This module enables machines with Intel VT-x extensions to run virtual
+ * machines without emulation or binary translation.
+ *
+ * MMU support
+ *
+ * Copyright (C) 2006 Qumranet, Inc.
+ *
+ * Authors:
+ *   Yaniv Kamay  <yaniv@qumranet.com>
+ *   Avi Kivity   <avi@qumranet.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include "vmx.h"
+#include "mmu.h"
+
+#include <linux/kvm_host.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/highmem.h>
+#include <linux/module.h>
+#include <linux/swap.h>
+
+#include <asm/page.h>
+#include <asm/cmpxchg.h>
+#include <asm/io.h>
+
+#undef MMU_DEBUG
+
+#undef AUDIT
+
+#ifdef AUDIT
+static void kvm_mmu_audit(struct kvm_vcpu *vcpu, const char *msg);
+#else
+static void kvm_mmu_audit(struct kvm_vcpu *vcpu, const char *msg) {}
+#endif
+
+#ifdef MMU_DEBUG
+
+#define pgprintk(x...) do { if (dbg) printk(x); } while (0)
+#define rmap_printk(x...) do { if (dbg) printk(x); } while (0)
+
+#else
+
+#define pgprintk(x...) do { } while (0)
+#define rmap_printk(x...) do { } while (0)
+
+#endif
+
+#if defined(MMU_DEBUG) || defined(AUDIT)
+static int dbg = 1;
+#endif
+
+#ifndef MMU_DEBUG
+#define ASSERT(x) do { } while (0)
+#else
+#define ASSERT(x)							\
+	if (!(x)) {							\
+		printk(KERN_WARNING "assertion failed %s:%d: %s\n",	\
+		       __FILE__, __LINE__, #x);				\
+	}
+#endif
+
+#define PT64_PT_BITS 9
+#define PT64_ENT_PER_PAGE (1 << PT64_PT_BITS)
+#define PT32_PT_BITS 10
+#define PT32_ENT_PER_PAGE (1 << PT32_PT_BITS)
+
+#define PT_WRITABLE_SHIFT 1
+
+#define PT_PRESENT_MASK (1ULL << 0)
+#define PT_WRITABLE_MASK (1ULL << PT_WRITABLE_SHIFT)
+#define PT_USER_MASK (1ULL << 2)
+#define PT_PWT_MASK (1ULL << 3)
+#define PT_PCD_MASK (1ULL << 4)
+#define PT_ACCESSED_MASK (1ULL << 5)
+#define PT_DIRTY_MASK (1ULL << 6)
+#define PT_PAGE_SIZE_MASK (1ULL << 7)
+#define PT_PAT_MASK (1ULL << 7)
+#define PT_GLOBAL_MASK (1ULL << 8)
+#define PT64_NX_SHIFT 63
+#define PT64_NX_MASK (1ULL << PT64_NX_SHIFT)
+
+#define PT_PAT_SHIFT 7
+#define PT_DIR_PAT_SHIFT 12
+#define PT_DIR_PAT_MASK (1ULL << PT_DIR_PAT_SHIFT)
+
+#define PT32_DIR_PSE36_SIZE 4
+#define PT32_DIR_PSE36_SHIFT 13
+#define PT32_DIR_PSE36_MASK \
+	(((1ULL << PT32_DIR_PSE36_SIZE) - 1) << PT32_DIR_PSE36_SHIFT)
+
+
+#define PT_FIRST_AVAIL_BITS_SHIFT 9
+#define PT64_SECOND_AVAIL_BITS_SHIFT 52
+
+#define PT_SHADOW_IO_MARK (1ULL << PT_FIRST_AVAIL_BITS_SHIFT)
+
+#define VALID_PAGE(x) ((x) != INVALID_PAGE)
+
+#define PT64_LEVEL_BITS 9
+
+#define PT64_LEVEL_SHIFT(level) \
+		(PAGE_SHIFT + (level - 1) * PT64_LEVEL_BITS)
+
+#define PT64_LEVEL_MASK(level) \
+		(((1ULL << PT64_LEVEL_BITS) - 1) << PT64_LEVEL_SHIFT(level))
+
+#define PT64_INDEX(address, level)\
+	(((address) >> PT64_LEVEL_SHIFT(level)) & ((1 << PT64_LEVEL_BITS) - 1))
+
+
+#define PT32_LEVEL_BITS 10
+
+#define PT32_LEVEL_SHIFT(level) \
+		(PAGE_SHIFT + (level - 1) * PT32_LEVEL_BITS)
+
+#define PT32_LEVEL_MASK(level) \
+		(((1ULL << PT32_LEVEL_BITS) - 1) << PT32_LEVEL_SHIFT(level))
+
+#define PT32_INDEX(address, level)\
+	(((address) >> PT32_LEVEL_SHIFT(level)) & ((1 << PT32_LEVEL_BITS) - 1))
+
+
+#define PT64_BASE_ADDR_MASK (((1ULL << 52) - 1) & ~(u64)(PAGE_SIZE-1))
+#define PT64_DIR_BASE_ADDR_MASK \
+	(PT64_BASE_ADDR_MASK & ~((1ULL << (PAGE_SHIFT + PT64_LEVEL_BITS)) - 1))
+
+#define PT32_BASE_ADDR_MASK PAGE_MASK
+#define PT32_DIR_BASE_ADDR_MASK \
+	(PAGE_MASK & ~((1ULL << (PAGE_SHIFT + PT32_LEVEL_BITS)) - 1))
+
+#define PT64_PERM_MASK (PT_PRESENT_MASK | PT_WRITABLE_MASK | PT_USER_MASK \
+			| PT64_NX_MASK)
+
+#define PFERR_PRESENT_MASK (1U << 0)
+#define PFERR_WRITE_MASK (1U << 1)
+#define PFERR_USER_MASK (1U << 2)
+#define PFERR_FETCH_MASK (1U << 4)
+
+#define PT64_ROOT_LEVEL 4
+#define PT32_ROOT_LEVEL 2
+#define PT32E_ROOT_LEVEL 3
+
+#define PT_DIRECTORY_LEVEL 2
+#define PT_PAGE_TABLE_LEVEL 1
+
+#define RMAP_EXT 4
+
+#define ACC_EXEC_MASK    1
+#define ACC_WRITE_MASK   PT_WRITABLE_MASK
+#define ACC_USER_MASK    PT_USER_MASK
+#define ACC_ALL          (ACC_EXEC_MASK | ACC_WRITE_MASK | ACC_USER_MASK)
+
+struct kvm_rmap_desc {
+	u64 *shadow_ptes[RMAP_EXT];
+	struct kvm_rmap_desc *more;
+};
+
+static struct kmem_cache *pte_chain_cache;
+static struct kmem_cache *rmap_desc_cache;
+static struct kmem_cache *mmu_page_header_cache;
+
+static u64 __read_mostly shadow_trap_nonpresent_pte;
+static u64 __read_mostly shadow_notrap_nonpresent_pte;
+
+void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte)
+{
+	shadow_trap_nonpresent_pte = trap_pte;
+	shadow_notrap_nonpresent_pte = notrap_pte;
+}
+EXPORT_SYMBOL_GPL(kvm_mmu_set_nonpresent_ptes);
+
+static int is_write_protection(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.cr0 & X86_CR0_WP;
+}
+
+static int is_cpuid_PSE36(void)
+{
+	return 1;
+}
+
+static int is_nx(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.shadow_efer & EFER_NX;
+}
+
+static int is_present_pte(unsigned long pte)
+{
+	return pte & PT_PRESENT_MASK;
+}
+
+static int is_shadow_present_pte(u64 pte)
+{
+	pte &= ~PT_SHADOW_IO_MARK;
+	return pte != shadow_trap_nonpresent_pte
+		&& pte != shadow_notrap_nonpresent_pte;
+}
+
+static int is_writeble_pte(unsigned long pte)
+{
+	return pte & PT_WRITABLE_MASK;
+}
+
+static int is_dirty_pte(unsigned long pte)
+{
+	return pte & PT_DIRTY_MASK;
+}
+
+static int is_io_pte(unsigned long pte)
+{
+	return pte & PT_SHADOW_IO_MARK;
+}
+
+static int is_rmap_pte(u64 pte)
+{
+	return pte != shadow_trap_nonpresent_pte
+		&& pte != shadow_notrap_nonpresent_pte;
+}
+
+static gfn_t pse36_gfn_delta(u32 gpte)
+{
+	int shift = 32 - PT32_DIR_PSE36_SHIFT - PAGE_SHIFT;
+
+	return (gpte & PT32_DIR_PSE36_MASK) << shift;
+}
+
+static void set_shadow_pte(u64 *sptep, u64 spte)
+{
+#ifdef CONFIG_X86_64
+	set_64bit((unsigned long *)sptep, spte);
+#else
+	set_64bit((unsigned long long *)sptep, spte);
+#endif
+}
+
+static int mmu_topup_memory_cache(struct kvm_mmu_memory_cache *cache,
+				  struct kmem_cache *base_cache, int min)
+{
+	void *obj;
+
+	if (cache->nobjs >= min)
+		return 0;
+	while (cache->nobjs < ARRAY_SIZE(cache->objects)) {
+		obj = kmem_cache_zalloc(base_cache, GFP_KERNEL);
+		if (!obj)
+			return -ENOMEM;
+		cache->objects[cache->nobjs++] = obj;
+	}
+	return 0;
+}
+
+static void mmu_free_memory_cache(struct kvm_mmu_memory_cache *mc)
+{
+	while (mc->nobjs)
+		kfree(mc->objects[--mc->nobjs]);
+}
+
+static int mmu_topup_memory_cache_page(struct kvm_mmu_memory_cache *cache,
+				       int min)
+{
+	struct page *page;
+
+	if (cache->nobjs >= min)
+		return 0;
+	while (cache->nobjs < ARRAY_SIZE(cache->objects)) {
+		page = alloc_page(GFP_KERNEL);
+		if (!page)
+			return -ENOMEM;
+		set_page_private(page, 0);
+		cache->objects[cache->nobjs++] = page_address(page);
+	}
+	return 0;
+}
+
+static void mmu_free_memory_cache_page(struct kvm_mmu_memory_cache *mc)
+{
+	while (mc->nobjs)
+		free_page((unsigned long)mc->objects[--mc->nobjs]);
+}
+
+static int mmu_topup_memory_caches(struct kvm_vcpu *vcpu)
+{
+	int r;
+
+	kvm_mmu_free_some_pages(vcpu);
+	r = mmu_topup_memory_cache(&vcpu->arch.mmu_pte_chain_cache,
+				   pte_chain_cache, 4);
+	if (r)
+		goto out;
+	r = mmu_topup_memory_cache(&vcpu->arch.mmu_rmap_desc_cache,
+				   rmap_desc_cache, 1);
+	if (r)
+		goto out;
+	r = mmu_topup_memory_cache_page(&vcpu->arch.mmu_page_cache, 8);
+	if (r)
+		goto out;
+	r = mmu_topup_memory_cache(&vcpu->arch.mmu_page_header_cache,
+				   mmu_page_header_cache, 4);
+out:
+	return r;
+}
+
+static void mmu_free_memory_caches(struct kvm_vcpu *vcpu)
+{
+	mmu_free_memory_cache(&vcpu->arch.mmu_pte_chain_cache);
+	mmu_free_memory_cache(&vcpu->arch.mmu_rmap_desc_cache);
+	mmu_free_memory_cache_page(&vcpu->arch.mmu_page_cache);
+	mmu_free_memory_cache(&vcpu->arch.mmu_page_header_cache);
+}
+
+static void *mmu_memory_cache_alloc(struct kvm_mmu_memory_cache *mc,
+				    size_t size)
+{
+	void *p;
+
+	BUG_ON(!mc->nobjs);
+	p = mc->objects[--mc->nobjs];
+	memset(p, 0, size);
+	return p;
+}
+
+static struct kvm_pte_chain *mmu_alloc_pte_chain(struct kvm_vcpu *vcpu)
+{
+	return mmu_memory_cache_alloc(&vcpu->arch.mmu_pte_chain_cache,
+				      sizeof(struct kvm_pte_chain));
+}
+
+static void mmu_free_pte_chain(struct kvm_pte_chain *pc)
+{
+	kfree(pc);
+}
+
+static struct kvm_rmap_desc *mmu_alloc_rmap_desc(struct kvm_vcpu *vcpu)
+{
+	return mmu_memory_cache_alloc(&vcpu->arch.mmu_rmap_desc_cache,
+				      sizeof(struct kvm_rmap_desc));
+}
+
+static void mmu_free_rmap_desc(struct kvm_rmap_desc *rd)
+{
+	kfree(rd);
+}
+
+/*
+ * Take gfn and return the reverse mapping to it.
+ * Note: gfn must be unaliased before this function get called
+ */
+
+static unsigned long *gfn_to_rmap(struct kvm *kvm, gfn_t gfn)
+{
+	struct kvm_memory_slot *slot;
+
+	slot = gfn_to_memslot(kvm, gfn);
+	return &slot->rmap[gfn - slot->base_gfn];
+}
+
+/*
+ * Reverse mapping data structures:
+ *
+ * If rmapp bit zero is zero, then rmapp point to the shadw page table entry
+ * that points to page_address(page).
+ *
+ * If rmapp bit zero is one, (then rmap & ~1) points to a struct kvm_rmap_desc
+ * containing more mappings.
+ */
+static void rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn)
+{
+	struct kvm_mmu_page *sp;
+	struct kvm_rmap_desc *desc;
+	unsigned long *rmapp;
+	int i;
+
+	if (!is_rmap_pte(*spte))
+		return;
+	gfn = unalias_gfn(vcpu->kvm, gfn);
+	sp = page_header(__pa(spte));
+	sp->gfns[spte - sp->spt] = gfn;
+	rmapp = gfn_to_rmap(vcpu->kvm, gfn);
+	if (!*rmapp) {
+		rmap_printk("rmap_add: %p %llx 0->1\n", spte, *spte);
+		*rmapp = (unsigned long)spte;
+	} else if (!(*rmapp & 1)) {
+		rmap_printk("rmap_add: %p %llx 1->many\n", spte, *spte);
+		desc = mmu_alloc_rmap_desc(vcpu);
+		desc->shadow_ptes[0] = (u64 *)*rmapp;
+		desc->shadow_ptes[1] = spte;
+		*rmapp = (unsigned long)desc | 1;
+	} else {
+		rmap_printk("rmap_add: %p %llx many->many\n", spte, *spte);
+		desc = (struct kvm_rmap_desc *)(*rmapp & ~1ul);
+		while (desc->shadow_ptes[RMAP_EXT-1] && desc->more)
+			desc = desc->more;
+		if (desc->shadow_ptes[RMAP_EXT-1]) {
+			desc->more = mmu_alloc_rmap_desc(vcpu);
+			desc = desc->more;
+		}
+		for (i = 0; desc->shadow_ptes[i]; ++i)
+			;
+		desc->shadow_ptes[i] = spte;
+	}
+}
+
+static void rmap_desc_remove_entry(unsigned long *rmapp,
+				   struct kvm_rmap_desc *desc,
+				   int i,
+				   struct kvm_rmap_desc *prev_desc)
+{
+	int j;
+
+	for (j = RMAP_EXT - 1; !desc->shadow_ptes[j] && j > i; --j)
+		;
+	desc->shadow_ptes[i] = desc->shadow_ptes[j];
+	desc->shadow_ptes[j] = NULL;
+	if (j != 0)
+		return;
+	if (!prev_desc && !desc->more)
+		*rmapp = (unsigned long)desc->shadow_ptes[0];
+	else
+		if (prev_desc)
+			prev_desc->more = desc->more;
+		else
+			*rmapp = (unsigned long)desc->more | 1;
+	mmu_free_rmap_desc(desc);
+}
+
+static void rmap_remove(struct kvm *kvm, u64 *spte)
+{
+	struct kvm_rmap_desc *desc;
+	struct kvm_rmap_desc *prev_desc;
+	struct kvm_mmu_page *sp;
+	struct page *page;
+	unsigned long *rmapp;
+	int i;
+
+	if (!is_rmap_pte(*spte))
+		return;
+	sp = page_header(__pa(spte));
+	page = pfn_to_page((*spte & PT64_BASE_ADDR_MASK) >> PAGE_SHIFT);
+	mark_page_accessed(page);
+	if (is_writeble_pte(*spte))
+		kvm_release_page_dirty(page);
+	else
+		kvm_release_page_clean(page);
+	rmapp = gfn_to_rmap(kvm, sp->gfns[spte - sp->spt]);
+	if (!*rmapp) {
+		printk(KERN_ERR "rmap_remove: %p %llx 0->BUG\n", spte, *spte);
+		BUG();
+	} else if (!(*rmapp & 1)) {
+		rmap_printk("rmap_remove:  %p %llx 1->0\n", spte, *spte);
+		if ((u64 *)*rmapp != spte) {
+			printk(KERN_ERR "rmap_remove:  %p %llx 1->BUG\n",
+			       spte, *spte);
+			BUG();
+		}
+		*rmapp = 0;
+	} else {
+		rmap_printk("rmap_remove:  %p %llx many->many\n", spte, *spte);
+		desc = (struct kvm_rmap_desc *)(*rmapp & ~1ul);
+		prev_desc = NULL;
+		while (desc) {
+			for (i = 0; i < RMAP_EXT && desc->shadow_ptes[i]; ++i)
+				if (desc->shadow_ptes[i] == spte) {
+					rmap_desc_remove_entry(rmapp,
+							       desc, i,
+							       prev_desc);
+					return;
+				}
+			prev_desc = desc;
+			desc = desc->more;
+		}
+		BUG();
+	}
+}
+
+static u64 *rmap_next(struct kvm *kvm, unsigned long *rmapp, u64 *spte)
+{
+	struct kvm_rmap_desc *desc;
+	struct kvm_rmap_desc *prev_desc;
+	u64 *prev_spte;
+	int i;
+
+	if (!*rmapp)
+		return NULL;
+	else if (!(*rmapp & 1)) {
+		if (!spte)
+			return (u64 *)*rmapp;
+		return NULL;
+	}
+	desc = (struct kvm_rmap_desc *)(*rmapp & ~1ul);
+	prev_desc = NULL;
+	prev_spte = NULL;
+	while (desc) {
+		for (i = 0; i < RMAP_EXT && desc->shadow_ptes[i]; ++i) {
+			if (prev_spte == spte)
+				return desc->shadow_ptes[i];
+			prev_spte = desc->shadow_ptes[i];
+		}
+		desc = desc->more;
+	}
+	return NULL;
+}
+
+static void rmap_write_protect(struct kvm *kvm, u64 gfn)
+{
+	unsigned long *rmapp;
+	u64 *spte;
+
+	gfn = unalias_gfn(kvm, gfn);
+	rmapp = gfn_to_rmap(kvm, gfn);
+
+	spte = rmap_next(kvm, rmapp, NULL);
+	while (spte) {
+		BUG_ON(!spte);
+		BUG_ON(!(*spte & PT_PRESENT_MASK));
+		rmap_printk("rmap_write_protect: spte %p %llx\n", spte, *spte);
+		if (is_writeble_pte(*spte))
+			set_shadow_pte(spte, *spte & ~PT_WRITABLE_MASK);
+		kvm_flush_remote_tlbs(kvm);
+		spte = rmap_next(kvm, rmapp, spte);
+	}
+}
+
+#ifdef MMU_DEBUG
+static int is_empty_shadow_page(u64 *spt)
+{
+	u64 *pos;
+	u64 *end;
+
+	for (pos = spt, end = pos + PAGE_SIZE / sizeof(u64); pos != end; pos++)
+		if ((*pos & ~PT_SHADOW_IO_MARK) != shadow_trap_nonpresent_pte) {
+			printk(KERN_ERR "%s: %p %llx\n", __FUNCTION__,
+			       pos, *pos);
+			return 0;
+		}
+	return 1;
+}
+#endif
+
+static void kvm_mmu_free_page(struct kvm *kvm, struct kvm_mmu_page *sp)
+{
+	ASSERT(is_empty_shadow_page(sp->spt));
+	list_del(&sp->link);
+	__free_page(virt_to_page(sp->spt));
+	__free_page(virt_to_page(sp->gfns));
+	kfree(sp);
+	++kvm->arch.n_free_mmu_pages;
+}
+
+static unsigned kvm_page_table_hashfn(gfn_t gfn)
+{
+	return gfn;
+}
+
+static struct kvm_mmu_page *kvm_mmu_alloc_page(struct kvm_vcpu *vcpu,
+					       u64 *parent_pte)
+{
+	struct kvm_mmu_page *sp;
+
+	if (!vcpu->kvm->arch.n_free_mmu_pages)
+		return NULL;
+
+	sp = mmu_memory_cache_alloc(&vcpu->arch.mmu_page_header_cache, sizeof *sp);
+	sp->spt = mmu_memory_cache_alloc(&vcpu->arch.mmu_page_cache, PAGE_SIZE);
+	sp->gfns = mmu_memory_cache_alloc(&vcpu->arch.mmu_page_cache, PAGE_SIZE);
+	set_page_private(virt_to_page(sp->spt), (unsigned long)sp);
+	list_add(&sp->link, &vcpu->kvm->arch.active_mmu_pages);
+	ASSERT(is_empty_shadow_page(sp->spt));
+	sp->slot_bitmap = 0;
+	sp->multimapped = 0;
+	sp->parent_pte = parent_pte;
+	--vcpu->kvm->arch.n_free_mmu_pages;
+	return sp;
+}
+
+static void mmu_page_add_parent_pte(struct kvm_vcpu *vcpu,
+				    struct kvm_mmu_page *sp, u64 *parent_pte)
+{
+	struct kvm_pte_chain *pte_chain;
+	struct hlist_node *node;
+	int i;
+
+	if (!parent_pte)
+		return;
+	if (!sp->multimapped) {
+		u64 *old = sp->parent_pte;
+
+		if (!old) {
+			sp->parent_pte = parent_pte;
+			return;
+		}
+		sp->multimapped = 1;
+		pte_chain = mmu_alloc_pte_chain(vcpu);
+		INIT_HLIST_HEAD(&sp->parent_ptes);
+		hlist_add_head(&pte_chain->link, &sp->parent_ptes);
+		pte_chain->parent_ptes[0] = old;
+	}
+	hlist_for_each_entry(pte_chain, node, &sp->parent_ptes, link) {
+		if (pte_chain->parent_ptes[NR_PTE_CHAIN_ENTRIES-1])
+			continue;
+		for (i = 0; i < NR_PTE_CHAIN_ENTRIES; ++i)
+			if (!pte_chain->parent_ptes[i]) {
+				pte_chain->parent_ptes[i] = parent_pte;
+				return;
+			}
+	}
+	pte_chain = mmu_alloc_pte_chain(vcpu);
+	BUG_ON(!pte_chain);
+	hlist_add_head(&pte_chain->link, &sp->parent_ptes);
+	pte_chain->parent_ptes[0] = parent_pte;
+}
+
+static void mmu_page_remove_parent_pte(struct kvm_mmu_page *sp,
+				       u64 *parent_pte)
+{
+	struct kvm_pte_chain *pte_chain;
+	struct hlist_node *node;
+	int i;
+
+	if (!sp->multimapped) {
+		BUG_ON(sp->parent_pte != parent_pte);
+		sp->parent_pte = NULL;
+		return;
+	}
+	hlist_for_each_entry(pte_chain, node, &sp->parent_ptes, link)
+		for (i = 0; i < NR_PTE_CHAIN_ENTRIES; ++i) {
+			if (!pte_chain->parent_ptes[i])
+				break;
+			if (pte_chain->parent_ptes[i] != parent_pte)
+				continue;
+			while (i + 1 < NR_PTE_CHAIN_ENTRIES
+				&& pte_chain->parent_ptes[i + 1]) {
+				pte_chain->parent_ptes[i]
+					= pte_chain->parent_ptes[i + 1];
+				++i;
+			}
+			pte_chain->parent_ptes[i] = NULL;
+			if (i == 0) {
+				hlist_del(&pte_chain->link);
+				mmu_free_pte_chain(pte_chain);
+				if (hlist_empty(&sp->parent_ptes)) {
+					sp->multimapped = 0;
+					sp->parent_pte = NULL;
+				}
+			}
+			return;
+		}
+	BUG();
+}
+
+static struct kvm_mmu_page *kvm_mmu_lookup_page(struct kvm *kvm, gfn_t gfn)
+{
+	unsigned index;
+	struct hlist_head *bucket;
+	struct kvm_mmu_page *sp;
+	struct hlist_node *node;
+
+	pgprintk("%s: looking for gfn %lx\n", __FUNCTION__, gfn);
+	index = kvm_page_table_hashfn(gfn) % KVM_NUM_MMU_PAGES;
+	bucket = &kvm->arch.mmu_page_hash[index];
+	hlist_for_each_entry(sp, node, bucket, hash_link)
+		if (sp->gfn == gfn && !sp->role.metaphysical) {
+			pgprintk("%s: found role %x\n",
+				 __FUNCTION__, sp->role.word);
+			return sp;
+		}
+	return NULL;
+}
+
+static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
+					     gfn_t gfn,
+					     gva_t gaddr,
+					     unsigned level,
+					     int metaphysical,
+					     unsigned access,
+					     u64 *parent_pte,
+					     bool *new_page)
+{
+	union kvm_mmu_page_role role;
+	unsigned index;
+	unsigned quadrant;
+	struct hlist_head *bucket;
+	struct kvm_mmu_page *sp;
+	struct hlist_node *node;
+
+	role.word = 0;
+	role.glevels = vcpu->arch.mmu.root_level;
+	role.level = level;
+	role.metaphysical = metaphysical;
+	role.access = access;
+	if (vcpu->arch.mmu.root_level <= PT32_ROOT_LEVEL) {
+		quadrant = gaddr >> (PAGE_SHIFT + (PT64_PT_BITS * level));
+		quadrant &= (1 << ((PT32_PT_BITS - PT64_PT_BITS) * level)) - 1;
+		role.quadrant = quadrant;
+	}
+	pgprintk("%s: looking gfn %lx role %x\n", __FUNCTION__,
+		 gfn, role.word);
+	index = kvm_page_table_hashfn(gfn) % KVM_NUM_MMU_PAGES;
+	bucket = &vcpu->kvm->arch.mmu_page_hash[index];
+	hlist_for_each_entry(sp, node, bucket, hash_link)
+		if (sp->gfn == gfn && sp->role.word == role.word) {
+			mmu_page_add_parent_pte(vcpu, sp, parent_pte);
+			pgprintk("%s: found\n", __FUNCTION__);
+			return sp;
+		}
+	sp = kvm_mmu_alloc_page(vcpu, parent_pte);
+	if (!sp)
+		return sp;
+	pgprintk("%s: adding gfn %lx role %x\n", __FUNCTION__, gfn, role.word);
+	sp->gfn = gfn;
+	sp->role = role;
+	hlist_add_head(&sp->hash_link, bucket);
+	vcpu->arch.mmu.prefetch_page(vcpu, sp);
+	if (!metaphysical)
+		rmap_write_protect(vcpu->kvm, gfn);
+	if (new_page)
+		*new_page = 1;
+	return sp;
+}
+
+static void kvm_mmu_page_unlink_children(struct kvm *kvm,
+					 struct kvm_mmu_page *sp)
+{
+	unsigned i;
+	u64 *pt;
+	u64 ent;
+
+	pt = sp->spt;
+
+	if (sp->role.level == PT_PAGE_TABLE_LEVEL) {
+		for (i = 0; i < PT64_ENT_PER_PAGE; ++i) {
+			if (is_shadow_present_pte(pt[i]))
+				rmap_remove(kvm, &pt[i]);
+			pt[i] = shadow_trap_nonpresent_pte;
+		}
+		kvm_flush_remote_tlbs(kvm);
+		return;
+	}
+
+	for (i = 0; i < PT64_ENT_PER_PAGE; ++i) {
+		ent = pt[i];
+
+		pt[i] = shadow_trap_nonpresent_pte;
+		if (!is_shadow_present_pte(ent))
+			continue;
+		ent &= PT64_BASE_ADDR_MASK;
+		mmu_page_remove_parent_pte(page_header(ent), &pt[i]);
+	}
+	kvm_flush_remote_tlbs(kvm);
+}
+
+static void kvm_mmu_put_page(struct kvm_mmu_page *sp, u64 *parent_pte)
+{
+	mmu_page_remove_parent_pte(sp, parent_pte);
+}
+
+static void kvm_mmu_reset_last_pte_updated(struct kvm *kvm)
+{
+	int i;
+
+	for (i = 0; i < KVM_MAX_VCPUS; ++i)
+		if (kvm->vcpus[i])
+			kvm->vcpus[i]->arch.last_pte_updated = NULL;
+}
+
+static void kvm_mmu_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp)
+{
+	u64 *parent_pte;
+
+	++kvm->stat.mmu_shadow_zapped;
+	while (sp->multimapped || sp->parent_pte) {
+		if (!sp->multimapped)
+			parent_pte = sp->parent_pte;
+		else {
+			struct kvm_pte_chain *chain;
+
+			chain = container_of(sp->parent_ptes.first,
+					     struct kvm_pte_chain, link);
+			parent_pte = chain->parent_ptes[0];
+		}
+		BUG_ON(!parent_pte);
+		kvm_mmu_put_page(sp, parent_pte);
+		set_shadow_pte(parent_pte, shadow_trap_nonpresent_pte);
+	}
+	kvm_mmu_page_unlink_children(kvm, sp);
+	if (!sp->root_count) {
+		hlist_del(&sp->hash_link);
+		kvm_mmu_free_page(kvm, sp);
+	} else
+		list_move(&sp->link, &kvm->arch.active_mmu_pages);
+	kvm_mmu_reset_last_pte_updated(kvm);
+}
+
+/*
+ * Changing the number of mmu pages allocated to the vm
+ * Note: if kvm_nr_mmu_pages is too small, you will get dead lock
+ */
+void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages)
+{
+	/*
+	 * If we set the number of mmu pages to be smaller be than the
+	 * number of actived pages , we must to free some mmu pages before we
+	 * change the value
+	 */
+
+	if ((kvm->arch.n_alloc_mmu_pages - kvm->arch.n_free_mmu_pages) >
+	    kvm_nr_mmu_pages) {
+		int n_used_mmu_pages = kvm->arch.n_alloc_mmu_pages
+				       - kvm->arch.n_free_mmu_pages;
+
+		while (n_used_mmu_pages > kvm_nr_mmu_pages) {
+			struct kvm_mmu_page *page;
+
+			page = container_of(kvm->arch.active_mmu_pages.prev,
+					    struct kvm_mmu_page, link);
+			kvm_mmu_zap_page(kvm, page);
+			n_used_mmu_pages--;
+		}
+		kvm->arch.n_free_mmu_pages = 0;
+	}
+	else
+		kvm->arch.n_free_mmu_pages += kvm_nr_mmu_pages
+					 - kvm->arch.n_alloc_mmu_pages;
+
+	kvm->arch.n_alloc_mmu_pages = kvm_nr_mmu_pages;
+}
+
+static int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn)
+{
+	unsigned index;
+	struct hlist_head *bucket;
+	struct kvm_mmu_page *sp;
+	struct hlist_node *node, *n;
+	int r;
+
+	pgprintk("%s: looking for gfn %lx\n", __FUNCTION__, gfn);
+	r = 0;
+	index = kvm_page_table_hashfn(gfn) % KVM_NUM_MMU_PAGES;
+	bucket = &kvm->arch.mmu_page_hash[index];
+	hlist_for_each_entry_safe(sp, node, n, bucket, hash_link)
+		if (sp->gfn == gfn && !sp->role.metaphysical) {
+			pgprintk("%s: gfn %lx role %x\n", __FUNCTION__, gfn,
+				 sp->role.word);
+			kvm_mmu_zap_page(kvm, sp);
+			r = 1;
+		}
+	return r;
+}
+
+static void mmu_unshadow(struct kvm *kvm, gfn_t gfn)
+{
+	struct kvm_mmu_page *sp;
+
+	while ((sp = kvm_mmu_lookup_page(kvm, gfn)) != NULL) {
+		pgprintk("%s: zap %lx %x\n", __FUNCTION__, gfn, sp->role.word);
+		kvm_mmu_zap_page(kvm, sp);
+	}
+}
+
+static void page_header_update_slot(struct kvm *kvm, void *pte, gfn_t gfn)
+{
+	int slot = memslot_id(kvm, gfn_to_memslot(kvm, gfn));
+	struct kvm_mmu_page *sp = page_header(__pa(pte));
+
+	__set_bit(slot, &sp->slot_bitmap);
+}
+
+struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva)
+{
+	gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva);
+
+	if (gpa == UNMAPPED_GVA)
+		return NULL;
+	return gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+}
+
+static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
+			 unsigned pt_access, unsigned pte_access,
+			 int user_fault, int write_fault, int dirty,
+			 int *ptwrite, gfn_t gfn)
+{
+	u64 spte;
+	int was_rmapped = is_rmap_pte(*shadow_pte);
+	struct page *page;
+
+	pgprintk("%s: spte %llx access %x write_fault %d"
+		 " user_fault %d gfn %lx\n",
+		 __FUNCTION__, *shadow_pte, pt_access,
+		 write_fault, user_fault, gfn);
+
+	/*
+	 * We don't set the accessed bit, since we sometimes want to see
+	 * whether the guest actually used the pte (in order to detect
+	 * demand paging).
+	 */
+	spte = PT_PRESENT_MASK | PT_DIRTY_MASK;
+	if (!dirty)
+		pte_access &= ~ACC_WRITE_MASK;
+	if (!(pte_access & ACC_EXEC_MASK))
+		spte |= PT64_NX_MASK;
+
+	page = gfn_to_page(vcpu->kvm, gfn);
+
+	spte |= PT_PRESENT_MASK;
+	if (pte_access & ACC_USER_MASK)
+		spte |= PT_USER_MASK;
+
+	if (is_error_page(page)) {
+		set_shadow_pte(shadow_pte,
+			       shadow_trap_nonpresent_pte | PT_SHADOW_IO_MARK);
+		kvm_release_page_clean(page);
+		return;
+	}
+
+	spte |= page_to_phys(page);
+
+	if ((pte_access & ACC_WRITE_MASK)
+	    || (write_fault && !is_write_protection(vcpu) && !user_fault)) {
+		struct kvm_mmu_page *shadow;
+
+		spte |= PT_WRITABLE_MASK;
+		if (user_fault) {
+			mmu_unshadow(vcpu->kvm, gfn);
+			goto unshadowed;
+		}
+
+		shadow = kvm_mmu_lookup_page(vcpu->kvm, gfn);
+		if (shadow) {
+			pgprintk("%s: found shadow page for %lx, marking ro\n",
+				 __FUNCTION__, gfn);
+			pte_access &= ~ACC_WRITE_MASK;
+			if (is_writeble_pte(spte)) {
+				spte &= ~PT_WRITABLE_MASK;
+				kvm_x86_ops->tlb_flush(vcpu);
+			}
+			if (write_fault)
+				*ptwrite = 1;
+		}
+	}
+
+unshadowed:
+
+	if (pte_access & ACC_WRITE_MASK)
+		mark_page_dirty(vcpu->kvm, gfn);
+
+	pgprintk("%s: setting spte %llx\n", __FUNCTION__, spte);
+	set_shadow_pte(shadow_pte, spte);
+	page_header_update_slot(vcpu->kvm, shadow_pte, gfn);
+	if (!was_rmapped) {
+		rmap_add(vcpu, shadow_pte, gfn);
+		if (!is_rmap_pte(*shadow_pte))
+			kvm_release_page_clean(page);
+	}
+	else
+		kvm_release_page_clean(page);
+	if (!ptwrite || !*ptwrite)
+		vcpu->arch.last_pte_updated = shadow_pte;
+}
+
+static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)
+{
+}
+
+static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
+{
+	int level = PT32E_ROOT_LEVEL;
+	hpa_t table_addr = vcpu->arch.mmu.root_hpa;
+	int pt_write = 0;
+
+	for (; ; level--) {
+		u32 index = PT64_INDEX(v, level);
+		u64 *table;
+
+		ASSERT(VALID_PAGE(table_addr));
+		table = __va(table_addr);
+
+		if (level == 1) {
+			mmu_set_spte(vcpu, &table[index], ACC_ALL, ACC_ALL,
+				     0, write, 1, &pt_write, gfn);
+			return pt_write || is_io_pte(table[index]);
+		}
+
+		if (table[index] == shadow_trap_nonpresent_pte) {
+			struct kvm_mmu_page *new_table;
+			gfn_t pseudo_gfn;
+
+			pseudo_gfn = (v & PT64_DIR_BASE_ADDR_MASK)
+				>> PAGE_SHIFT;
+			new_table = kvm_mmu_get_page(vcpu, pseudo_gfn,
+						     v, level - 1,
+						     1, ACC_ALL, &table[index],
+						     NULL);
+			if (!new_table) {
+				pgprintk("nonpaging_map: ENOMEM\n");
+				return -ENOMEM;
+			}
+
+			table[index] = __pa(new_table->spt) | PT_PRESENT_MASK
+				| PT_WRITABLE_MASK | PT_USER_MASK;
+		}
+		table_addr = table[index] & PT64_BASE_ADDR_MASK;
+	}
+}
+
+static void nonpaging_prefetch_page(struct kvm_vcpu *vcpu,
+				    struct kvm_mmu_page *sp)
+{
+	int i;
+
+	for (i = 0; i < PT64_ENT_PER_PAGE; ++i)
+		sp->spt[i] = shadow_trap_nonpresent_pte;
+}
+
+static void mmu_free_roots(struct kvm_vcpu *vcpu)
+{
+	int i;
+	struct kvm_mmu_page *sp;
+
+	if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
+		return;
+#ifdef CONFIG_X86_64
+	if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) {
+		hpa_t root = vcpu->arch.mmu.root_hpa;
+
+		sp = page_header(root);
+		--sp->root_count;
+		vcpu->arch.mmu.root_hpa = INVALID_PAGE;
+		return;
+	}
+#endif
+	for (i = 0; i < 4; ++i) {
+		hpa_t root = vcpu->arch.mmu.pae_root[i];
+
+		if (root) {
+			root &= PT64_BASE_ADDR_MASK;
+			sp = page_header(root);
+			--sp->root_count;
+		}
+		vcpu->arch.mmu.pae_root[i] = INVALID_PAGE;
+	}
+	vcpu->arch.mmu.root_hpa = INVALID_PAGE;
+}
+
+static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
+{
+	int i;
+	gfn_t root_gfn;
+	struct kvm_mmu_page *sp;
+
+	root_gfn = vcpu->arch.cr3 >> PAGE_SHIFT;
+
+#ifdef CONFIG_X86_64
+	if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) {
+		hpa_t root = vcpu->arch.mmu.root_hpa;
+
+		ASSERT(!VALID_PAGE(root));
+		sp = kvm_mmu_get_page(vcpu, root_gfn, 0,
+				      PT64_ROOT_LEVEL, 0, ACC_ALL, NULL, NULL);
+		root = __pa(sp->spt);
+		++sp->root_count;
+		vcpu->arch.mmu.root_hpa = root;
+		return;
+	}
+#endif
+	for (i = 0; i < 4; ++i) {
+		hpa_t root = vcpu->arch.mmu.pae_root[i];
+
+		ASSERT(!VALID_PAGE(root));
+		if (vcpu->arch.mmu.root_level == PT32E_ROOT_LEVEL) {
+			if (!is_present_pte(vcpu->arch.pdptrs[i])) {
+				vcpu->arch.mmu.pae_root[i] = 0;
+				continue;
+			}
+			root_gfn = vcpu->arch.pdptrs[i] >> PAGE_SHIFT;
+		} else if (vcpu->arch.mmu.root_level == 0)
+			root_gfn = 0;
+		sp = kvm_mmu_get_page(vcpu, root_gfn, i << 30,
+				      PT32_ROOT_LEVEL, !is_paging(vcpu),
+				      ACC_ALL, NULL, NULL);
+		root = __pa(sp->spt);
+		++sp->root_count;
+		vcpu->arch.mmu.pae_root[i] = root | PT_PRESENT_MASK;
+	}
+	vcpu->arch.mmu.root_hpa = __pa(vcpu->arch.mmu.pae_root);
+}
+
+static gpa_t nonpaging_gva_to_gpa(struct kvm_vcpu *vcpu, gva_t vaddr)
+{
+	return vaddr;
+}
+
+static int nonpaging_page_fault(struct kvm_vcpu *vcpu, gva_t gva,
+				u32 error_code)
+{
+	gfn_t gfn;
+	int r;
+
+	pgprintk("%s: gva %lx error %x\n", __FUNCTION__, gva, error_code);
+	r = mmu_topup_memory_caches(vcpu);
+	if (r)
+		return r;
+
+	ASSERT(vcpu);
+	ASSERT(VALID_PAGE(vcpu->arch.mmu.root_hpa));
+
+	gfn = gva >> PAGE_SHIFT;
+
+	return nonpaging_map(vcpu, gva & PAGE_MASK,
+			     error_code & PFERR_WRITE_MASK, gfn);
+}
+
+static void nonpaging_free(struct kvm_vcpu *vcpu)
+{
+	mmu_free_roots(vcpu);
+}
+
+static int nonpaging_init_context(struct kvm_vcpu *vcpu)
+{
+	struct kvm_mmu *context = &vcpu->arch.mmu;
+
+	context->new_cr3 = nonpaging_new_cr3;
+	context->page_fault = nonpaging_page_fault;
+	context->gva_to_gpa = nonpaging_gva_to_gpa;
+	context->free = nonpaging_free;
+	context->prefetch_page = nonpaging_prefetch_page;
+	context->root_level = 0;
+	context->shadow_root_level = PT32E_ROOT_LEVEL;
+	context->root_hpa = INVALID_PAGE;
+	return 0;
+}
+
+void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu)
+{
+	++vcpu->stat.tlb_flush;
+	kvm_x86_ops->tlb_flush(vcpu);
+}
+
+static void paging_new_cr3(struct kvm_vcpu *vcpu)
+{
+	pgprintk("%s: cr3 %lx\n", __FUNCTION__, vcpu->cr3);
+	mmu_free_roots(vcpu);
+}
+
+static void inject_page_fault(struct kvm_vcpu *vcpu,
+			      u64 addr,
+			      u32 err_code)
+{
+	kvm_inject_page_fault(vcpu, addr, err_code);
+}
+
+static void paging_free(struct kvm_vcpu *vcpu)
+{
+	nonpaging_free(vcpu);
+}
+
+#define PTTYPE 64
+#include "paging_tmpl.h"
+#undef PTTYPE
+
+#define PTTYPE 32
+#include "paging_tmpl.h"
+#undef PTTYPE
+
+static int paging64_init_context_common(struct kvm_vcpu *vcpu, int level)
+{
+	struct kvm_mmu *context = &vcpu->arch.mmu;
+
+	ASSERT(is_pae(vcpu));
+	context->new_cr3 = paging_new_cr3;
+	context->page_fault = paging64_page_fault;
+	context->gva_to_gpa = paging64_gva_to_gpa;
+	context->prefetch_page = paging64_prefetch_page;
+	context->free = paging_free;
+	context->root_level = level;
+	context->shadow_root_level = level;
+	context->root_hpa = INVALID_PAGE;
+	return 0;
+}
+
+static int paging64_init_context(struct kvm_vcpu *vcpu)
+{
+	return paging64_init_context_common(vcpu, PT64_ROOT_LEVEL);
+}
+
+static int paging32_init_context(struct kvm_vcpu *vcpu)
+{
+	struct kvm_mmu *context = &vcpu->arch.mmu;
+
+	context->new_cr3 = paging_new_cr3;
+	context->page_fault = paging32_page_fault;
+	context->gva_to_gpa = paging32_gva_to_gpa;
+	context->free = paging_free;
+	context->prefetch_page = paging32_prefetch_page;
+	context->root_level = PT32_ROOT_LEVEL;
+	context->shadow_root_level = PT32E_ROOT_LEVEL;
+	context->root_hpa = INVALID_PAGE;
+	return 0;
+}
+
+static int paging32E_init_context(struct kvm_vcpu *vcpu)
+{
+	return paging64_init_context_common(vcpu, PT32E_ROOT_LEVEL);
+}
+
+static int init_kvm_mmu(struct kvm_vcpu *vcpu)
+{
+	ASSERT(vcpu);
+	ASSERT(!VALID_PAGE(vcpu->arch.mmu.root_hpa));
+
+	if (!is_paging(vcpu))
+		return nonpaging_init_context(vcpu);
+	else if (is_long_mode(vcpu))
+		return paging64_init_context(vcpu);
+	else if (is_pae(vcpu))
+		return paging32E_init_context(vcpu);
+	else
+		return paging32_init_context(vcpu);
+}
+
+static void destroy_kvm_mmu(struct kvm_vcpu *vcpu)
+{
+	ASSERT(vcpu);
+	if (VALID_PAGE(vcpu->arch.mmu.root_hpa)) {
+		vcpu->arch.mmu.free(vcpu);
+		vcpu->arch.mmu.root_hpa = INVALID_PAGE;
+	}
+}
+
+int kvm_mmu_reset_context(struct kvm_vcpu *vcpu)
+{
+	destroy_kvm_mmu(vcpu);
+	return init_kvm_mmu(vcpu);
+}
+EXPORT_SYMBOL_GPL(kvm_mmu_reset_context);
+
+int kvm_mmu_load(struct kvm_vcpu *vcpu)
+{
+	int r;
+
+	mutex_lock(&vcpu->kvm->lock);
+	r = mmu_topup_memory_caches(vcpu);
+	if (r)
+		goto out;
+	mmu_alloc_roots(vcpu);
+	kvm_x86_ops->set_cr3(vcpu, vcpu->arch.mmu.root_hpa);
+	kvm_mmu_flush_tlb(vcpu);
+out:
+	mutex_unlock(&vcpu->kvm->lock);
+	return r;
+}
+EXPORT_SYMBOL_GPL(kvm_mmu_load);
+
+void kvm_mmu_unload(struct kvm_vcpu *vcpu)
+{
+	mmu_free_roots(vcpu);
+}
+
+static void mmu_pte_write_zap_pte(struct kvm_vcpu *vcpu,
+				  struct kvm_mmu_page *sp,
+				  u64 *spte)
+{
+	u64 pte;
+	struct kvm_mmu_page *child;
+
+	pte = *spte;
+	if (is_shadow_present_pte(pte)) {
+		if (sp->role.level == PT_PAGE_TABLE_LEVEL)
+			rmap_remove(vcpu->kvm, spte);
+		else {
+			child = page_header(pte & PT64_BASE_ADDR_MASK);
+			mmu_page_remove_parent_pte(child, spte);
+		}
+	}
+	set_shadow_pte(spte, shadow_trap_nonpresent_pte);
+}
+
+static void mmu_pte_write_new_pte(struct kvm_vcpu *vcpu,
+				  struct kvm_mmu_page *sp,
+				  u64 *spte,
+				  const void *new, int bytes,
+				  int offset_in_pte)
+{
+	if (sp->role.level != PT_PAGE_TABLE_LEVEL) {
+		++vcpu->kvm->stat.mmu_pde_zapped;
+		return;
+	}
+
+	++vcpu->kvm->stat.mmu_pte_updated;
+	if (sp->role.glevels == PT32_ROOT_LEVEL)
+		paging32_update_pte(vcpu, sp, spte, new, bytes, offset_in_pte);
+	else
+		paging64_update_pte(vcpu, sp, spte, new, bytes, offset_in_pte);
+}
+
+static bool need_remote_flush(u64 old, u64 new)
+{
+	if (!is_shadow_present_pte(old))
+		return false;
+	if (!is_shadow_present_pte(new))
+		return true;
+	if ((old ^ new) & PT64_BASE_ADDR_MASK)
+		return true;
+	old ^= PT64_NX_MASK;
+	new ^= PT64_NX_MASK;
+	return (old & ~new & PT64_PERM_MASK) != 0;
+}
+
+static void mmu_pte_write_flush_tlb(struct kvm_vcpu *vcpu, u64 old, u64 new)
+{
+	if (need_remote_flush(old, new))
+		kvm_flush_remote_tlbs(vcpu->kvm);
+	else
+		kvm_mmu_flush_tlb(vcpu);
+}
+
+static bool last_updated_pte_accessed(struct kvm_vcpu *vcpu)
+{
+	u64 *spte = vcpu->arch.last_pte_updated;
+
+	return !!(spte && (*spte & PT_ACCESSED_MASK));
+}
+
+void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
+		       const u8 *new, int bytes)
+{
+	gfn_t gfn = gpa >> PAGE_SHIFT;
+	struct kvm_mmu_page *sp;
+	struct hlist_node *node, *n;
+	struct hlist_head *bucket;
+	unsigned index;
+	u64 entry;
+	u64 *spte;
+	unsigned offset = offset_in_page(gpa);
+	unsigned pte_size;
+	unsigned page_offset;
+	unsigned misaligned;
+	unsigned quadrant;
+	int level;
+	int flooded = 0;
+	int npte;
+
+	pgprintk("%s: gpa %llx bytes %d\n", __FUNCTION__, gpa, bytes);
+	++vcpu->kvm->stat.mmu_pte_write;
+	kvm_mmu_audit(vcpu, "pre pte write");
+	if (gfn == vcpu->arch.last_pt_write_gfn
+	    && !last_updated_pte_accessed(vcpu)) {
+		++vcpu->arch.last_pt_write_count;
+		if (vcpu->arch.last_pt_write_count >= 3)
+			flooded = 1;
+	} else {
+		vcpu->arch.last_pt_write_gfn = gfn;
+		vcpu->arch.last_pt_write_count = 1;
+		vcpu->arch.last_pte_updated = NULL;
+	}
+	index = kvm_page_table_hashfn(gfn) % KVM_NUM_MMU_PAGES;
+	bucket = &vcpu->kvm->arch.mmu_page_hash[index];
+	hlist_for_each_entry_safe(sp, node, n, bucket, hash_link) {
+		if (sp->gfn != gfn || sp->role.metaphysical)
+			continue;
+		pte_size = sp->role.glevels == PT32_ROOT_LEVEL ? 4 : 8;
+		misaligned = (offset ^ (offset + bytes - 1)) & ~(pte_size - 1);
+		misaligned |= bytes < 4;
+		if (misaligned || flooded) {
+			/*
+			 * Misaligned accesses are too much trouble to fix
+			 * up; also, they usually indicate a page is not used
+			 * as a page table.
+			 *
+			 * If we're seeing too many writes to a page,
+			 * it may no longer be a page table, or we may be
+			 * forking, in which case it is better to unmap the
+			 * page.
+			 */
+			pgprintk("misaligned: gpa %llx bytes %d role %x\n",
+				 gpa, bytes, sp->role.word);
+			kvm_mmu_zap_page(vcpu->kvm, sp);
+			++vcpu->kvm->stat.mmu_flooded;
+			continue;
+		}
+		page_offset = offset;
+		level = sp->role.level;
+		npte = 1;
+		if (sp->role.glevels == PT32_ROOT_LEVEL) {
+			page_offset <<= 1;	/* 32->64 */
+			/*
+			 * A 32-bit pde maps 4MB while the shadow pdes map
+			 * only 2MB.  So we need to double the offset again
+			 * and zap two pdes instead of one.
+			 */
+			if (level == PT32_ROOT_LEVEL) {
+				page_offset &= ~7; /* kill rounding error */
+				page_offset <<= 1;
+				npte = 2;
+			}
+			quadrant = page_offset >> PAGE_SHIFT;
+			page_offset &= ~PAGE_MASK;
+			if (quadrant != sp->role.quadrant)
+				continue;
+		}
+		spte = &sp->spt[page_offset / sizeof(*spte)];
+		while (npte--) {
+			entry = *spte;
+			mmu_pte_write_zap_pte(vcpu, sp, spte);
+			mmu_pte_write_new_pte(vcpu, sp, spte, new, bytes,
+					      page_offset & (pte_size - 1));
+			mmu_pte_write_flush_tlb(vcpu, entry, *spte);
+			++spte;
+		}
+	}
+	kvm_mmu_audit(vcpu, "post pte write");
+}
+
+int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
+{
+	gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva);
+
+	return kvm_mmu_unprotect_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+}
+
+void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
+{
+	while (vcpu->kvm->arch.n_free_mmu_pages < KVM_REFILL_PAGES) {
+		struct kvm_mmu_page *sp;
+
+		sp = container_of(vcpu->kvm->arch.active_mmu_pages.prev,
+				  struct kvm_mmu_page, link);
+		kvm_mmu_zap_page(vcpu->kvm, sp);
+		++vcpu->kvm->stat.mmu_recycled;
+	}
+}
+
+int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code)
+{
+	int r;
+	enum emulation_result er;
+
+	mutex_lock(&vcpu->kvm->lock);
+	r = vcpu->arch.mmu.page_fault(vcpu, cr2, error_code);
+	if (r < 0)
+		goto out;
+
+	if (!r) {
+		r = 1;
+		goto out;
+	}
+
+	r = mmu_topup_memory_caches(vcpu);
+	if (r)
+		goto out;
+
+	er = emulate_instruction(vcpu, vcpu->run, cr2, error_code, 0);
+	mutex_unlock(&vcpu->kvm->lock);
+
+	switch (er) {
+	case EMULATE_DONE:
+		return 1;
+	case EMULATE_DO_MMIO:
+		++vcpu->stat.mmio_exits;
+		return 0;
+	case EMULATE_FAIL:
+		kvm_report_emulation_failure(vcpu, "pagetable");
+		return 1;
+	default:
+		BUG();
+	}
+out:
+	mutex_unlock(&vcpu->kvm->lock);
+	return r;
+}
+EXPORT_SYMBOL_GPL(kvm_mmu_page_fault);
+
+static void free_mmu_pages(struct kvm_vcpu *vcpu)
+{
+	struct kvm_mmu_page *sp;
+
+	while (!list_empty(&vcpu->kvm->arch.active_mmu_pages)) {
+		sp = container_of(vcpu->kvm->arch.active_mmu_pages.next,
+				  struct kvm_mmu_page, link);
+		kvm_mmu_zap_page(vcpu->kvm, sp);
+	}
+	free_page((unsigned long)vcpu->arch.mmu.pae_root);
+}
+
+static int alloc_mmu_pages(struct kvm_vcpu *vcpu)
+{
+	struct page *page;
+	int i;
+
+	ASSERT(vcpu);
+
+	if (vcpu->kvm->arch.n_requested_mmu_pages)
+		vcpu->kvm->arch.n_free_mmu_pages =
+					vcpu->kvm->arch.n_requested_mmu_pages;
+	else
+		vcpu->kvm->arch.n_free_mmu_pages =
+					vcpu->kvm->arch.n_alloc_mmu_pages;
+	/*
+	 * When emulating 32-bit mode, cr3 is only 32 bits even on x86_64.
+	 * Therefore we need to allocate shadow page tables in the first
+	 * 4GB of memory, which happens to fit the DMA32 zone.
+	 */
+	page = alloc_page(GFP_KERNEL | __GFP_DMA32);
+	if (!page)
+		goto error_1;
+	vcpu->arch.mmu.pae_root = page_address(page);
+	for (i = 0; i < 4; ++i)
+		vcpu->arch.mmu.pae_root[i] = INVALID_PAGE;
+
+	return 0;
+
+error_1:
+	free_mmu_pages(vcpu);
+	return -ENOMEM;
+}
+
+int kvm_mmu_create(struct kvm_vcpu *vcpu)
+{
+	ASSERT(vcpu);
+	ASSERT(!VALID_PAGE(vcpu->arch.mmu.root_hpa));
+
+	return alloc_mmu_pages(vcpu);
+}
+
+int kvm_mmu_setup(struct kvm_vcpu *vcpu)
+{
+	ASSERT(vcpu);
+	ASSERT(!VALID_PAGE(vcpu->arch.mmu.root_hpa));
+
+	return init_kvm_mmu(vcpu);
+}
+
+void kvm_mmu_destroy(struct kvm_vcpu *vcpu)
+{
+	ASSERT(vcpu);
+
+	destroy_kvm_mmu(vcpu);
+	free_mmu_pages(vcpu);
+	mmu_free_memory_caches(vcpu);
+}
+
+void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot)
+{
+	struct kvm_mmu_page *sp;
+
+	list_for_each_entry(sp, &kvm->arch.active_mmu_pages, link) {
+		int i;
+		u64 *pt;
+
+		if (!test_bit(slot, &sp->slot_bitmap))
+			continue;
+
+		pt = sp->spt;
+		for (i = 0; i < PT64_ENT_PER_PAGE; ++i)
+			/* avoid RMW */
+			if (pt[i] & PT_WRITABLE_MASK)
+				pt[i] &= ~PT_WRITABLE_MASK;
+	}
+}
+
+void kvm_mmu_zap_all(struct kvm *kvm)
+{
+	struct kvm_mmu_page *sp, *node;
+
+	list_for_each_entry_safe(sp, node, &kvm->arch.active_mmu_pages, link)
+		kvm_mmu_zap_page(kvm, sp);
+
+	kvm_flush_remote_tlbs(kvm);
+}
+
+void kvm_mmu_module_exit(void)
+{
+	if (pte_chain_cache)
+		kmem_cache_destroy(pte_chain_cache);
+	if (rmap_desc_cache)
+		kmem_cache_destroy(rmap_desc_cache);
+	if (mmu_page_header_cache)
+		kmem_cache_destroy(mmu_page_header_cache);
+}
+
+int kvm_mmu_module_init(void)
+{
+	pte_chain_cache = kmem_cache_create("kvm_pte_chain",
+					    sizeof(struct kvm_pte_chain),
+					    0, 0, NULL);
+	if (!pte_chain_cache)
+		goto nomem;
+	rmap_desc_cache = kmem_cache_create("kvm_rmap_desc",
+					    sizeof(struct kvm_rmap_desc),
+					    0, 0, NULL);
+	if (!rmap_desc_cache)
+		goto nomem;
+
+	mmu_page_header_cache = kmem_cache_create("kvm_mmu_page_header",
+						  sizeof(struct kvm_mmu_page),
+						  0, 0, NULL);
+	if (!mmu_page_header_cache)
+		goto nomem;
+
+	return 0;
+
+nomem:
+	kvm_mmu_module_exit();
+	return -ENOMEM;
+}
+
+/*
+ * Caculate mmu pages needed for kvm.
+ */
+unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm)
+{
+	int i;
+	unsigned int nr_mmu_pages;
+	unsigned int  nr_pages = 0;
+
+	for (i = 0; i < kvm->nmemslots; i++)
+		nr_pages += kvm->memslots[i].npages;
+
+	nr_mmu_pages = nr_pages * KVM_PERMILLE_MMU_PAGES / 1000;
+	nr_mmu_pages = max(nr_mmu_pages,
+			(unsigned int) KVM_MIN_ALLOC_MMU_PAGES);
+
+	return nr_mmu_pages;
+}
+
+#ifdef AUDIT
+
+static const char *audit_msg;
+
+static gva_t canonicalize(gva_t gva)
+{
+#ifdef CONFIG_X86_64
+	gva = (long long)(gva << 16) >> 16;
+#endif
+	return gva;
+}
+
+static void audit_mappings_page(struct kvm_vcpu *vcpu, u64 page_pte,
+				gva_t va, int level)
+{
+	u64 *pt = __va(page_pte & PT64_BASE_ADDR_MASK);
+	int i;
+	gva_t va_delta = 1ul << (PAGE_SHIFT + 9 * (level - 1));
+
+	for (i = 0; i < PT64_ENT_PER_PAGE; ++i, va += va_delta) {
+		u64 ent = pt[i];
+
+		if (ent == shadow_trap_nonpresent_pte)
+			continue;
+
+		va = canonicalize(va);
+		if (level > 1) {
+			if (ent == shadow_notrap_nonpresent_pte)
+				printk(KERN_ERR "audit: (%s) nontrapping pte"
+				       " in nonleaf level: levels %d gva %lx"
+				       " level %d pte %llx\n", audit_msg,
+				       vcpu->arch.mmu.root_level, va, level, ent);
+
+			audit_mappings_page(vcpu, ent, va, level - 1);
+		} else {
+			gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, va);
+			struct page *page = gpa_to_page(vcpu, gpa);
+			hpa_t hpa = page_to_phys(page);
+
+			if (is_shadow_present_pte(ent)
+			    && (ent & PT64_BASE_ADDR_MASK) != hpa)
+				printk(KERN_ERR "xx audit error: (%s) levels %d"
+				       " gva %lx gpa %llx hpa %llx ent %llx %d\n",
+				       audit_msg, vcpu->arch.mmu.root_level,
+				       va, gpa, hpa, ent,
+				       is_shadow_present_pte(ent));
+			else if (ent == shadow_notrap_nonpresent_pte
+				 && !is_error_hpa(hpa))
+				printk(KERN_ERR "audit: (%s) notrap shadow,"
+				       " valid guest gva %lx\n", audit_msg, va);
+			kvm_release_page_clean(page);
+
+		}
+	}
+}
+
+static void audit_mappings(struct kvm_vcpu *vcpu)
+{
+	unsigned i;
+
+	if (vcpu->arch.mmu.root_level == 4)
+		audit_mappings_page(vcpu, vcpu->arch.mmu.root_hpa, 0, 4);
+	else
+		for (i = 0; i < 4; ++i)
+			if (vcpu->arch.mmu.pae_root[i] & PT_PRESENT_MASK)
+				audit_mappings_page(vcpu,
+						    vcpu->arch.mmu.pae_root[i],
+						    i << 30,
+						    2);
+}
+
+static int count_rmaps(struct kvm_vcpu *vcpu)
+{
+	int nmaps = 0;
+	int i, j, k;
+
+	for (i = 0; i < KVM_MEMORY_SLOTS; ++i) {
+		struct kvm_memory_slot *m = &vcpu->kvm->memslots[i];
+		struct kvm_rmap_desc *d;
+
+		for (j = 0; j < m->npages; ++j) {
+			unsigned long *rmapp = &m->rmap[j];
+
+			if (!*rmapp)
+				continue;
+			if (!(*rmapp & 1)) {
+				++nmaps;
+				continue;
+			}
+			d = (struct kvm_rmap_desc *)(*rmapp & ~1ul);
+			while (d) {
+				for (k = 0; k < RMAP_EXT; ++k)
+					if (d->shadow_ptes[k])
+						++nmaps;
+					else
+						break;
+				d = d->more;
+			}
+		}
+	}
+	return nmaps;
+}
+
+static int count_writable_mappings(struct kvm_vcpu *vcpu)
+{
+	int nmaps = 0;
+	struct kvm_mmu_page *sp;
+	int i;
+
+	list_for_each_entry(sp, &vcpu->kvm->arch.active_mmu_pages, link) {
+		u64 *pt = sp->spt;
+
+		if (sp->role.level != PT_PAGE_TABLE_LEVEL)
+			continue;
+
+		for (i = 0; i < PT64_ENT_PER_PAGE; ++i) {
+			u64 ent = pt[i];
+
+			if (!(ent & PT_PRESENT_MASK))
+				continue;
+			if (!(ent & PT_WRITABLE_MASK))
+				continue;
+			++nmaps;
+		}
+	}
+	return nmaps;
+}
+
+static void audit_rmap(struct kvm_vcpu *vcpu)
+{
+	int n_rmap = count_rmaps(vcpu);
+	int n_actual = count_writable_mappings(vcpu);
+
+	if (n_rmap != n_actual)
+		printk(KERN_ERR "%s: (%s) rmap %d actual %d\n",
+		       __FUNCTION__, audit_msg, n_rmap, n_actual);
+}
+
+static void audit_write_protection(struct kvm_vcpu *vcpu)
+{
+	struct kvm_mmu_page *sp;
+	struct kvm_memory_slot *slot;
+	unsigned long *rmapp;
+	gfn_t gfn;
+
+	list_for_each_entry(sp, &vcpu->kvm->arch.active_mmu_pages, link) {
+		if (sp->role.metaphysical)
+			continue;
+
+		slot = gfn_to_memslot(vcpu->kvm, sp->gfn);
+		gfn = unalias_gfn(vcpu->kvm, sp->gfn);
+		rmapp = &slot->rmap[gfn - slot->base_gfn];
+		if (*rmapp)
+			printk(KERN_ERR "%s: (%s) shadow page has writable"
+			       " mappings: gfn %lx role %x\n",
+			       __FUNCTION__, audit_msg, sp->gfn,
+			       sp->role.word);
+	}
+}
+
+static void kvm_mmu_audit(struct kvm_vcpu *vcpu, const char *msg)
+{
+	int olddbg = dbg;
+
+	dbg = 0;
+	audit_msg = msg;
+	audit_rmap(vcpu);
+	audit_write_protection(vcpu);
+	audit_mappings(vcpu);
+	dbg = olddbg;
+}
+
+#endif
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
new file mode 100644
index 000000000000..1fce19ec7a23
--- /dev/null
+++ b/arch/x86/kvm/mmu.h
@@ -0,0 +1,44 @@
+#ifndef __KVM_X86_MMU_H
+#define __KVM_X86_MMU_H
+
+#include <linux/kvm_host.h>
+
+static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
+{
+	if (unlikely(vcpu->kvm->arch.n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))
+		__kvm_mmu_free_some_pages(vcpu);
+}
+
+static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu)
+{
+	if (likely(vcpu->arch.mmu.root_hpa != INVALID_PAGE))
+		return 0;
+
+	return kvm_mmu_load(vcpu);
+}
+
+static inline int is_long_mode(struct kvm_vcpu *vcpu)
+{
+#ifdef CONFIG_X86_64
+	return vcpu->arch.shadow_efer & EFER_LME;
+#else
+	return 0;
+#endif
+}
+
+static inline int is_pae(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.cr4 & X86_CR4_PAE;
+}
+
+static inline int is_pse(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.cr4 & X86_CR4_PSE;
+}
+
+static inline int is_paging(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.cr0 & X86_CR0_PG;
+}
+
+#endif
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
new file mode 100644
index 000000000000..56b88f7e83ef
--- /dev/null
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -0,0 +1,461 @@
+/*
+ * Kernel-based Virtual Machine driver for Linux
+ *
+ * This module enables machines with Intel VT-x extensions to run virtual
+ * machines without emulation or binary translation.
+ *
+ * MMU support
+ *
+ * Copyright (C) 2006 Qumranet, Inc.
+ *
+ * Authors:
+ *   Yaniv Kamay  <yaniv@qumranet.com>
+ *   Avi Kivity   <avi@qumranet.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+/*
+ * We need the mmu code to access both 32-bit and 64-bit guest ptes,
+ * so the code in this file is compiled twice, once per pte size.
+ */
+
+#if PTTYPE == 64
+	#define pt_element_t u64
+	#define guest_walker guest_walker64
+	#define FNAME(name) paging##64_##name
+	#define PT_BASE_ADDR_MASK PT64_BASE_ADDR_MASK
+	#define PT_DIR_BASE_ADDR_MASK PT64_DIR_BASE_ADDR_MASK
+	#define PT_INDEX(addr, level) PT64_INDEX(addr, level)
+	#define SHADOW_PT_INDEX(addr, level) PT64_INDEX(addr, level)
+	#define PT_LEVEL_MASK(level) PT64_LEVEL_MASK(level)
+	#define PT_LEVEL_BITS PT64_LEVEL_BITS
+	#ifdef CONFIG_X86_64
+	#define PT_MAX_FULL_LEVELS 4
+	#define CMPXCHG cmpxchg
+	#else
+	#define CMPXCHG cmpxchg64
+	#define PT_MAX_FULL_LEVELS 2
+	#endif
+#elif PTTYPE == 32
+	#define pt_element_t u32
+	#define guest_walker guest_walker32
+	#define FNAME(name) paging##32_##name
+	#define PT_BASE_ADDR_MASK PT32_BASE_ADDR_MASK
+	#define PT_DIR_BASE_ADDR_MASK PT32_DIR_BASE_ADDR_MASK
+	#define PT_INDEX(addr, level) PT32_INDEX(addr, level)
+	#define SHADOW_PT_INDEX(addr, level) PT64_INDEX(addr, level)
+	#define PT_LEVEL_MASK(level) PT32_LEVEL_MASK(level)
+	#define PT_LEVEL_BITS PT32_LEVEL_BITS
+	#define PT_MAX_FULL_LEVELS 2
+	#define CMPXCHG cmpxchg
+#else
+	#error Invalid PTTYPE value
+#endif
+
+#define gpte_to_gfn FNAME(gpte_to_gfn)
+#define gpte_to_gfn_pde FNAME(gpte_to_gfn_pde)
+
+/*
+ * The guest_walker structure emulates the behavior of the hardware page
+ * table walker.
+ */
+struct guest_walker {
+	int level;
+	gfn_t table_gfn[PT_MAX_FULL_LEVELS];
+	pt_element_t ptes[PT_MAX_FULL_LEVELS];
+	gpa_t pte_gpa[PT_MAX_FULL_LEVELS];
+	unsigned pt_access;
+	unsigned pte_access;
+	gfn_t gfn;
+	u32 error_code;
+};
+
+static gfn_t gpte_to_gfn(pt_element_t gpte)
+{
+	return (gpte & PT_BASE_ADDR_MASK) >> PAGE_SHIFT;
+}
+
+static gfn_t gpte_to_gfn_pde(pt_element_t gpte)
+{
+	return (gpte & PT_DIR_BASE_ADDR_MASK) >> PAGE_SHIFT;
+}
+
+static bool FNAME(cmpxchg_gpte)(struct kvm *kvm,
+			 gfn_t table_gfn, unsigned index,
+			 pt_element_t orig_pte, pt_element_t new_pte)
+{
+	pt_element_t ret;
+	pt_element_t *table;
+	struct page *page;
+
+	page = gfn_to_page(kvm, table_gfn);
+	table = kmap_atomic(page, KM_USER0);
+
+	ret = CMPXCHG(&table[index], orig_pte, new_pte);
+
+	kunmap_atomic(table, KM_USER0);
+
+	kvm_release_page_dirty(page);
+
+	return (ret != orig_pte);
+}
+
+static unsigned FNAME(gpte_access)(struct kvm_vcpu *vcpu, pt_element_t gpte)
+{
+	unsigned access;
+
+	access = (gpte & (PT_WRITABLE_MASK | PT_USER_MASK)) | ACC_EXEC_MASK;
+#if PTTYPE == 64
+	if (is_nx(vcpu))
+		access &= ~(gpte >> PT64_NX_SHIFT);
+#endif
+	return access;
+}
+
+/*
+ * Fetch a guest pte for a guest virtual address
+ */
+static int FNAME(walk_addr)(struct guest_walker *walker,
+			    struct kvm_vcpu *vcpu, gva_t addr,
+			    int write_fault, int user_fault, int fetch_fault)
+{
+	pt_element_t pte;
+	gfn_t table_gfn;
+	unsigned index, pt_access, pte_access;
+	gpa_t pte_gpa;
+
+	pgprintk("%s: addr %lx\n", __FUNCTION__, addr);
+walk:
+	walker->level = vcpu->arch.mmu.root_level;
+	pte = vcpu->arch.cr3;
+#if PTTYPE == 64
+	if (!is_long_mode(vcpu)) {
+		pte = vcpu->arch.pdptrs[(addr >> 30) & 3];
+		if (!is_present_pte(pte))
+			goto not_present;
+		--walker->level;
+	}
+#endif
+	ASSERT((!is_long_mode(vcpu) && is_pae(vcpu)) ||
+	       (vcpu->cr3 & CR3_NONPAE_RESERVED_BITS) == 0);
+
+	pt_access = ACC_ALL;
+
+	for (;;) {
+		index = PT_INDEX(addr, walker->level);
+
+		table_gfn = gpte_to_gfn(pte);
+		pte_gpa = gfn_to_gpa(table_gfn);
+		pte_gpa += index * sizeof(pt_element_t);
+		walker->table_gfn[walker->level - 1] = table_gfn;
+		walker->pte_gpa[walker->level - 1] = pte_gpa;
+		pgprintk("%s: table_gfn[%d] %lx\n", __FUNCTION__,
+			 walker->level - 1, table_gfn);
+
+		kvm_read_guest(vcpu->kvm, pte_gpa, &pte, sizeof(pte));
+
+		if (!is_present_pte(pte))
+			goto not_present;
+
+		if (write_fault && !is_writeble_pte(pte))
+			if (user_fault || is_write_protection(vcpu))
+				goto access_error;
+
+		if (user_fault && !(pte & PT_USER_MASK))
+			goto access_error;
+
+#if PTTYPE == 64
+		if (fetch_fault && is_nx(vcpu) && (pte & PT64_NX_MASK))
+			goto access_error;
+#endif
+
+		if (!(pte & PT_ACCESSED_MASK)) {
+			mark_page_dirty(vcpu->kvm, table_gfn);
+			if (FNAME(cmpxchg_gpte)(vcpu->kvm, table_gfn,
+			    index, pte, pte|PT_ACCESSED_MASK))
+				goto walk;
+			pte |= PT_ACCESSED_MASK;
+		}
+
+		pte_access = pt_access & FNAME(gpte_access)(vcpu, pte);
+
+		walker->ptes[walker->level - 1] = pte;
+
+		if (walker->level == PT_PAGE_TABLE_LEVEL) {
+			walker->gfn = gpte_to_gfn(pte);
+			break;
+		}
+
+		if (walker->level == PT_DIRECTORY_LEVEL
+		    && (pte & PT_PAGE_SIZE_MASK)
+		    && (PTTYPE == 64 || is_pse(vcpu))) {
+			walker->gfn = gpte_to_gfn_pde(pte);
+			walker->gfn += PT_INDEX(addr, PT_PAGE_TABLE_LEVEL);
+			if (PTTYPE == 32 && is_cpuid_PSE36())
+				walker->gfn += pse36_gfn_delta(pte);
+			break;
+		}
+
+		pt_access = pte_access;
+		--walker->level;
+	}
+
+	if (write_fault && !is_dirty_pte(pte)) {
+		bool ret;
+
+		mark_page_dirty(vcpu->kvm, table_gfn);
+		ret = FNAME(cmpxchg_gpte)(vcpu->kvm, table_gfn, index, pte,
+			    pte|PT_DIRTY_MASK);
+		if (ret)
+			goto walk;
+		pte |= PT_DIRTY_MASK;
+		kvm_mmu_pte_write(vcpu, pte_gpa, (u8 *)&pte, sizeof(pte));
+		walker->ptes[walker->level - 1] = pte;
+	}
+
+	walker->pt_access = pt_access;
+	walker->pte_access = pte_access;
+	pgprintk("%s: pte %llx pte_access %x pt_access %x\n",
+		 __FUNCTION__, (u64)pte, pt_access, pte_access);
+	return 1;
+
+not_present:
+	walker->error_code = 0;
+	goto err;
+
+access_error:
+	walker->error_code = PFERR_PRESENT_MASK;
+
+err:
+	if (write_fault)
+		walker->error_code |= PFERR_WRITE_MASK;
+	if (user_fault)
+		walker->error_code |= PFERR_USER_MASK;
+	if (fetch_fault)
+		walker->error_code |= PFERR_FETCH_MASK;
+	return 0;
+}
+
+static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *page,
+			      u64 *spte, const void *pte, int bytes,
+			      int offset_in_pte)
+{
+	pt_element_t gpte;
+	unsigned pte_access;
+
+	gpte = *(const pt_element_t *)pte;
+	if (~gpte & (PT_PRESENT_MASK | PT_ACCESSED_MASK)) {
+		if (!offset_in_pte && !is_present_pte(gpte))
+			set_shadow_pte(spte, shadow_notrap_nonpresent_pte);
+		return;
+	}
+	if (bytes < sizeof(pt_element_t))
+		return;
+	pgprintk("%s: gpte %llx spte %p\n", __FUNCTION__, (u64)gpte, spte);
+	pte_access = page->role.access & FNAME(gpte_access)(vcpu, gpte);
+	mmu_set_spte(vcpu, spte, page->role.access, pte_access, 0, 0,
+		     gpte & PT_DIRTY_MASK, NULL, gpte_to_gfn(gpte));
+}
+
+/*
+ * Fetch a shadow pte for a specific level in the paging hierarchy.
+ */
+static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
+			 struct guest_walker *walker,
+			 int user_fault, int write_fault, int *ptwrite)
+{
+	hpa_t shadow_addr;
+	int level;
+	u64 *shadow_ent;
+	unsigned access = walker->pt_access;
+
+	if (!is_present_pte(walker->ptes[walker->level - 1]))
+		return NULL;
+
+	shadow_addr = vcpu->arch.mmu.root_hpa;
+	level = vcpu->arch.mmu.shadow_root_level;
+	if (level == PT32E_ROOT_LEVEL) {
+		shadow_addr = vcpu->arch.mmu.pae_root[(addr >> 30) & 3];
+		shadow_addr &= PT64_BASE_ADDR_MASK;
+		--level;
+	}
+
+	for (; ; level--) {
+		u32 index = SHADOW_PT_INDEX(addr, level);
+		struct kvm_mmu_page *shadow_page;
+		u64 shadow_pte;
+		int metaphysical;
+		gfn_t table_gfn;
+		bool new_page = 0;
+
+		shadow_ent = ((u64 *)__va(shadow_addr)) + index;
+		if (is_shadow_present_pte(*shadow_ent)) {
+			if (level == PT_PAGE_TABLE_LEVEL)
+				break;
+			shadow_addr = *shadow_ent & PT64_BASE_ADDR_MASK;
+			continue;
+		}
+
+		if (level == PT_PAGE_TABLE_LEVEL)
+			break;
+
+		if (level - 1 == PT_PAGE_TABLE_LEVEL
+		    && walker->level == PT_DIRECTORY_LEVEL) {
+			metaphysical = 1;
+			if (!is_dirty_pte(walker->ptes[level - 1]))
+				access &= ~ACC_WRITE_MASK;
+			table_gfn = gpte_to_gfn(walker->ptes[level - 1]);
+		} else {
+			metaphysical = 0;
+			table_gfn = walker->table_gfn[level - 2];
+		}
+		shadow_page = kvm_mmu_get_page(vcpu, table_gfn, addr, level-1,
+					       metaphysical, access,
+					       shadow_ent, &new_page);
+		if (new_page && !metaphysical) {
+			pt_element_t curr_pte;
+			kvm_read_guest(vcpu->kvm, walker->pte_gpa[level - 2],
+				       &curr_pte, sizeof(curr_pte));
+			if (curr_pte != walker->ptes[level - 2])
+				return NULL;
+		}
+		shadow_addr = __pa(shadow_page->spt);
+		shadow_pte = shadow_addr | PT_PRESENT_MASK | PT_ACCESSED_MASK
+			| PT_WRITABLE_MASK | PT_USER_MASK;
+		*shadow_ent = shadow_pte;
+	}
+
+	mmu_set_spte(vcpu, shadow_ent, access, walker->pte_access & access,
+		     user_fault, write_fault,
+		     walker->ptes[walker->level-1] & PT_DIRTY_MASK,
+		     ptwrite, walker->gfn);
+
+	return shadow_ent;
+}
+
+/*
+ * Page fault handler.  There are several causes for a page fault:
+ *   - there is no shadow pte for the guest pte
+ *   - write access through a shadow pte marked read only so that we can set
+ *     the dirty bit
+ *   - write access to a shadow pte marked read only so we can update the page
+ *     dirty bitmap, when userspace requests it
+ *   - mmio access; in this case we will never install a present shadow pte
+ *   - normal guest page fault due to the guest pte marked not present, not
+ *     writable, or not executable
+ *
+ *  Returns: 1 if we need to emulate the instruction, 0 otherwise, or
+ *           a negative value on error.
+ */
+static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
+			       u32 error_code)
+{
+	int write_fault = error_code & PFERR_WRITE_MASK;
+	int user_fault = error_code & PFERR_USER_MASK;
+	int fetch_fault = error_code & PFERR_FETCH_MASK;
+	struct guest_walker walker;
+	u64 *shadow_pte;
+	int write_pt = 0;
+	int r;
+
+	pgprintk("%s: addr %lx err %x\n", __FUNCTION__, addr, error_code);
+	kvm_mmu_audit(vcpu, "pre page fault");
+
+	r = mmu_topup_memory_caches(vcpu);
+	if (r)
+		return r;
+
+	/*
+	 * Look up the shadow pte for the faulting address.
+	 */
+	r = FNAME(walk_addr)(&walker, vcpu, addr, write_fault, user_fault,
+			     fetch_fault);
+
+	/*
+	 * The page is not mapped by the guest.  Let the guest handle it.
+	 */
+	if (!r) {
+		pgprintk("%s: guest page fault\n", __FUNCTION__);
+		inject_page_fault(vcpu, addr, walker.error_code);
+		vcpu->arch.last_pt_write_count = 0; /* reset fork detector */
+		return 0;
+	}
+
+	shadow_pte = FNAME(fetch)(vcpu, addr, &walker, user_fault, write_fault,
+				  &write_pt);
+	pgprintk("%s: shadow pte %p %llx ptwrite %d\n", __FUNCTION__,
+		 shadow_pte, *shadow_pte, write_pt);
+
+	if (!write_pt)
+		vcpu->arch.last_pt_write_count = 0; /* reset fork detector */
+
+	/*
+	 * mmio: emulate if accessible, otherwise its a guest fault.
+	 */
+	if (shadow_pte && is_io_pte(*shadow_pte))
+		return 1;
+
+	++vcpu->stat.pf_fixed;
+	kvm_mmu_audit(vcpu, "post page fault (fixed)");
+
+	return write_pt;
+}
+
+static gpa_t FNAME(gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t vaddr)
+{
+	struct guest_walker walker;
+	gpa_t gpa = UNMAPPED_GVA;
+	int r;
+
+	r = FNAME(walk_addr)(&walker, vcpu, vaddr, 0, 0, 0);
+
+	if (r) {
+		gpa = gfn_to_gpa(walker.gfn);
+		gpa |= vaddr & ~PAGE_MASK;
+	}
+
+	return gpa;
+}
+
+static void FNAME(prefetch_page)(struct kvm_vcpu *vcpu,
+				 struct kvm_mmu_page *sp)
+{
+	int i, offset = 0;
+	pt_element_t *gpt;
+	struct page *page;
+
+	if (sp->role.metaphysical
+	    || (PTTYPE == 32 && sp->role.level > PT_PAGE_TABLE_LEVEL)) {
+		nonpaging_prefetch_page(vcpu, sp);
+		return;
+	}
+
+	if (PTTYPE == 32)
+		offset = sp->role.quadrant << PT64_LEVEL_BITS;
+	page = gfn_to_page(vcpu->kvm, sp->gfn);
+	gpt = kmap_atomic(page, KM_USER0);
+	for (i = 0; i < PT64_ENT_PER_PAGE; ++i)
+		if (is_present_pte(gpt[offset + i]))
+			sp->spt[i] = shadow_trap_nonpresent_pte;
+		else
+			sp->spt[i] = shadow_notrap_nonpresent_pte;
+	kunmap_atomic(gpt, KM_USER0);
+	kvm_release_page_clean(page);
+}
+
+#undef pt_element_t
+#undef guest_walker
+#undef FNAME
+#undef PT_BASE_ADDR_MASK
+#undef PT_INDEX
+#undef SHADOW_PT_INDEX
+#undef PT_LEVEL_MASK
+#undef PT_DIR_BASE_ADDR_MASK
+#undef PT_LEVEL_BITS
+#undef PT_MAX_FULL_LEVELS
+#undef gpte_to_gfn
+#undef gpte_to_gfn_pde
+#undef CMPXCHG
diff --git a/arch/x86/kvm/segment_descriptor.h b/arch/x86/kvm/segment_descriptor.h
new file mode 100644
index 000000000000..56fc4c873389
--- /dev/null
+++ b/arch/x86/kvm/segment_descriptor.h
@@ -0,0 +1,29 @@
+#ifndef __SEGMENT_DESCRIPTOR_H
+#define __SEGMENT_DESCRIPTOR_H
+
+struct segment_descriptor {
+	u16 limit_low;
+	u16 base_low;
+	u8  base_mid;
+	u8  type : 4;
+	u8  system : 1;
+	u8  dpl : 2;
+	u8  present : 1;
+	u8  limit_high : 4;
+	u8  avl : 1;
+	u8  long_mode : 1;
+	u8  default_op : 1;
+	u8  granularity : 1;
+	u8  base_high;
+} __attribute__((packed));
+
+#ifdef CONFIG_X86_64
+/* LDT or TSS descriptor in the GDT. 16 bytes. */
+struct segment_descriptor_64 {
+	struct segment_descriptor s;
+	u32 base_higher;
+	u32 pad_zero;
+};
+
+#endif
+#endif
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
new file mode 100644
index 000000000000..3d4b71a94440
--- /dev/null
+++ b/arch/x86/kvm/svm.c
@@ -0,0 +1,1725 @@
+/*
+ * Kernel-based Virtual Machine driver for Linux
+ *
+ * AMD SVM support
+ *
+ * Copyright (C) 2006 Qumranet, Inc.
+ *
+ * Authors:
+ *   Yaniv Kamay  <yaniv@qumranet.com>
+ *   Avi Kivity   <avi@qumranet.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+#include <linux/kvm_host.h>
+
+#include "kvm_svm.h"
+#include "irq.h"
+#include "mmu.h"
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/vmalloc.h>
+#include <linux/highmem.h>
+#include <linux/sched.h>
+
+#include <asm/desc.h>
+
+MODULE_AUTHOR("Qumranet");
+MODULE_LICENSE("GPL");
+
+#define IOPM_ALLOC_ORDER 2
+#define MSRPM_ALLOC_ORDER 1
+
+#define DB_VECTOR 1
+#define UD_VECTOR 6
+#define GP_VECTOR 13
+
+#define DR7_GD_MASK (1 << 13)
+#define DR6_BD_MASK (1 << 13)
+
+#define SEG_TYPE_LDT 2
+#define SEG_TYPE_BUSY_TSS16 3
+
+#define SVM_FEATURE_NPT  (1 << 0)
+#define SVM_FEATURE_LBRV (1 << 1)
+#define SVM_DEATURE_SVML (1 << 2)
+
+static void kvm_reput_irq(struct vcpu_svm *svm);
+
+static inline struct vcpu_svm *to_svm(struct kvm_vcpu *vcpu)
+{
+	return container_of(vcpu, struct vcpu_svm, vcpu);
+}
+
+unsigned long iopm_base;
+unsigned long msrpm_base;
+
+struct kvm_ldttss_desc {
+	u16 limit0;
+	u16 base0;
+	unsigned base1 : 8, type : 5, dpl : 2, p : 1;
+	unsigned limit1 : 4, zero0 : 3, g : 1, base2 : 8;
+	u32 base3;
+	u32 zero1;
+} __attribute__((packed));
+
+struct svm_cpu_data {
+	int cpu;
+
+	u64 asid_generation;
+	u32 max_asid;
+	u32 next_asid;
+	struct kvm_ldttss_desc *tss_desc;
+
+	struct page *save_area;
+};
+
+static DEFINE_PER_CPU(struct svm_cpu_data *, svm_data);
+static uint32_t svm_features;
+
+struct svm_init_data {
+	int cpu;
+	int r;
+};
+
+static u32 msrpm_ranges[] = {0, 0xc0000000, 0xc0010000};
+
+#define NUM_MSR_MAPS ARRAY_SIZE(msrpm_ranges)
+#define MSRS_RANGE_SIZE 2048
+#define MSRS_IN_RANGE (MSRS_RANGE_SIZE * 8 / 2)
+
+#define MAX_INST_SIZE 15
+
+static inline u32 svm_has(u32 feat)
+{
+	return svm_features & feat;
+}
+
+static inline u8 pop_irq(struct kvm_vcpu *vcpu)
+{
+	int word_index = __ffs(vcpu->arch.irq_summary);
+	int bit_index = __ffs(vcpu->arch.irq_pending[word_index]);
+	int irq = word_index * BITS_PER_LONG + bit_index;
+
+	clear_bit(bit_index, &vcpu->arch.irq_pending[word_index]);
+	if (!vcpu->arch.irq_pending[word_index])
+		clear_bit(word_index, &vcpu->arch.irq_summary);
+	return irq;
+}
+
+static inline void push_irq(struct kvm_vcpu *vcpu, u8 irq)
+{
+	set_bit(irq, vcpu->arch.irq_pending);
+	set_bit(irq / BITS_PER_LONG, &vcpu->arch.irq_summary);
+}
+
+static inline void clgi(void)
+{
+	asm volatile (SVM_CLGI);
+}
+
+static inline void stgi(void)
+{
+	asm volatile (SVM_STGI);
+}
+
+static inline void invlpga(unsigned long addr, u32 asid)
+{
+	asm volatile (SVM_INVLPGA :: "a"(addr), "c"(asid));
+}
+
+static inline unsigned long kvm_read_cr2(void)
+{
+	unsigned long cr2;
+
+	asm volatile ("mov %%cr2, %0" : "=r" (cr2));
+	return cr2;
+}
+
+static inline void kvm_write_cr2(unsigned long val)
+{
+	asm volatile ("mov %0, %%cr2" :: "r" (val));
+}
+
+static inline unsigned long read_dr6(void)
+{
+	unsigned long dr6;
+
+	asm volatile ("mov %%dr6, %0" : "=r" (dr6));
+	return dr6;
+}
+
+static inline void write_dr6(unsigned long val)
+{
+	asm volatile ("mov %0, %%dr6" :: "r" (val));
+}
+
+static inline unsigned long read_dr7(void)
+{
+	unsigned long dr7;
+
+	asm volatile ("mov %%dr7, %0" : "=r" (dr7));
+	return dr7;
+}
+
+static inline void write_dr7(unsigned long val)
+{
+	asm volatile ("mov %0, %%dr7" :: "r" (val));
+}
+
+static inline void force_new_asid(struct kvm_vcpu *vcpu)
+{
+	to_svm(vcpu)->asid_generation--;
+}
+
+static inline void flush_guest_tlb(struct kvm_vcpu *vcpu)
+{
+	force_new_asid(vcpu);
+}
+
+static void svm_set_efer(struct kvm_vcpu *vcpu, u64 efer)
+{
+	if (!(efer & EFER_LMA))
+		efer &= ~EFER_LME;
+
+	to_svm(vcpu)->vmcb->save.efer = efer | MSR_EFER_SVME_MASK;
+	vcpu->arch.shadow_efer = efer;
+}
+
+static void svm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr,
+				bool has_error_code, u32 error_code)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	svm->vmcb->control.event_inj = nr
+		| SVM_EVTINJ_VALID
+		| (has_error_code ? SVM_EVTINJ_VALID_ERR : 0)
+		| SVM_EVTINJ_TYPE_EXEPT;
+	svm->vmcb->control.event_inj_err = error_code;
+}
+
+static bool svm_exception_injected(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	return !(svm->vmcb->control.exit_int_info & SVM_EXITINTINFO_VALID);
+}
+
+static int is_external_interrupt(u32 info)
+{
+	info &= SVM_EVTINJ_TYPE_MASK | SVM_EVTINJ_VALID;
+	return info == (SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_INTR);
+}
+
+static void skip_emulated_instruction(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	if (!svm->next_rip) {
+		printk(KERN_DEBUG "%s: NOP\n", __FUNCTION__);
+		return;
+	}
+	if (svm->next_rip - svm->vmcb->save.rip > MAX_INST_SIZE)
+		printk(KERN_ERR "%s: ip 0x%llx next 0x%llx\n",
+		       __FUNCTION__,
+		       svm->vmcb->save.rip,
+		       svm->next_rip);
+
+	vcpu->arch.rip = svm->vmcb->save.rip = svm->next_rip;
+	svm->vmcb->control.int_state &= ~SVM_INTERRUPT_SHADOW_MASK;
+
+	vcpu->arch.interrupt_window_open = 1;
+}
+
+static int has_svm(void)
+{
+	uint32_t eax, ebx, ecx, edx;
+
+	if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) {
+		printk(KERN_INFO "has_svm: not amd\n");
+		return 0;
+	}
+
+	cpuid(0x80000000, &eax, &ebx, &ecx, &edx);
+	if (eax < SVM_CPUID_FUNC) {
+		printk(KERN_INFO "has_svm: can't execute cpuid_8000000a\n");
+		return 0;
+	}
+
+	cpuid(0x80000001, &eax, &ebx, &ecx, &edx);
+	if (!(ecx & (1 << SVM_CPUID_FEATURE_SHIFT))) {
+		printk(KERN_DEBUG "has_svm: svm not available\n");
+		return 0;
+	}
+	return 1;
+}
+
+static void svm_hardware_disable(void *garbage)
+{
+	struct svm_cpu_data *svm_data
+		= per_cpu(svm_data, raw_smp_processor_id());
+
+	if (svm_data) {
+		uint64_t efer;
+
+		wrmsrl(MSR_VM_HSAVE_PA, 0);
+		rdmsrl(MSR_EFER, efer);
+		wrmsrl(MSR_EFER, efer & ~MSR_EFER_SVME_MASK);
+		per_cpu(svm_data, raw_smp_processor_id()) = NULL;
+		__free_page(svm_data->save_area);
+		kfree(svm_data);
+	}
+}
+
+static void svm_hardware_enable(void *garbage)
+{
+
+	struct svm_cpu_data *svm_data;
+	uint64_t efer;
+#ifdef CONFIG_X86_64
+	struct desc_ptr gdt_descr;
+#else
+	struct desc_ptr gdt_descr;
+#endif
+	struct desc_struct *gdt;
+	int me = raw_smp_processor_id();
+
+	if (!has_svm()) {
+		printk(KERN_ERR "svm_cpu_init: err EOPNOTSUPP on %d\n", me);
+		return;
+	}
+	svm_data = per_cpu(svm_data, me);
+
+	if (!svm_data) {
+		printk(KERN_ERR "svm_cpu_init: svm_data is NULL on %d\n",
+		       me);
+		return;
+	}
+
+	svm_data->asid_generation = 1;
+	svm_data->max_asid = cpuid_ebx(SVM_CPUID_FUNC) - 1;
+	svm_data->next_asid = svm_data->max_asid + 1;
+	svm_features = cpuid_edx(SVM_CPUID_FUNC);
+
+	asm volatile ("sgdt %0" : "=m"(gdt_descr));
+	gdt = (struct desc_struct *)gdt_descr.address;
+	svm_data->tss_desc = (struct kvm_ldttss_desc *)(gdt + GDT_ENTRY_TSS);
+
+	rdmsrl(MSR_EFER, efer);
+	wrmsrl(MSR_EFER, efer | MSR_EFER_SVME_MASK);
+
+	wrmsrl(MSR_VM_HSAVE_PA,
+	       page_to_pfn(svm_data->save_area) << PAGE_SHIFT);
+}
+
+static int svm_cpu_init(int cpu)
+{
+	struct svm_cpu_data *svm_data;
+	int r;
+
+	svm_data = kzalloc(sizeof(struct svm_cpu_data), GFP_KERNEL);
+	if (!svm_data)
+		return -ENOMEM;
+	svm_data->cpu = cpu;
+	svm_data->save_area = alloc_page(GFP_KERNEL);
+	r = -ENOMEM;
+	if (!svm_data->save_area)
+		goto err_1;
+
+	per_cpu(svm_data, cpu) = svm_data;
+
+	return 0;
+
+err_1:
+	kfree(svm_data);
+	return r;
+
+}
+
+static void set_msr_interception(u32 *msrpm, unsigned msr,
+				 int read, int write)
+{
+	int i;
+
+	for (i = 0; i < NUM_MSR_MAPS; i++) {
+		if (msr >= msrpm_ranges[i] &&
+		    msr < msrpm_ranges[i] + MSRS_IN_RANGE) {
+			u32 msr_offset = (i * MSRS_IN_RANGE + msr -
+					  msrpm_ranges[i]) * 2;
+
+			u32 *base = msrpm + (msr_offset / 32);
+			u32 msr_shift = msr_offset % 32;
+			u32 mask = ((write) ? 0 : 2) | ((read) ? 0 : 1);
+			*base = (*base & ~(0x3 << msr_shift)) |
+				(mask << msr_shift);
+			return;
+		}
+	}
+	BUG();
+}
+
+static __init int svm_hardware_setup(void)
+{
+	int cpu;
+	struct page *iopm_pages;
+	struct page *msrpm_pages;
+	void *iopm_va, *msrpm_va;
+	int r;
+
+	iopm_pages = alloc_pages(GFP_KERNEL, IOPM_ALLOC_ORDER);
+
+	if (!iopm_pages)
+		return -ENOMEM;
+
+	iopm_va = page_address(iopm_pages);
+	memset(iopm_va, 0xff, PAGE_SIZE * (1 << IOPM_ALLOC_ORDER));
+	clear_bit(0x80, iopm_va); /* allow direct access to PC debug port */
+	iopm_base = page_to_pfn(iopm_pages) << PAGE_SHIFT;
+
+
+	msrpm_pages = alloc_pages(GFP_KERNEL, MSRPM_ALLOC_ORDER);
+
+	r = -ENOMEM;
+	if (!msrpm_pages)
+		goto err_1;
+
+	msrpm_va = page_address(msrpm_pages);
+	memset(msrpm_va, 0xff, PAGE_SIZE * (1 << MSRPM_ALLOC_ORDER));
+	msrpm_base = page_to_pfn(msrpm_pages) << PAGE_SHIFT;
+
+#ifdef CONFIG_X86_64
+	set_msr_interception(msrpm_va, MSR_GS_BASE, 1, 1);
+	set_msr_interception(msrpm_va, MSR_FS_BASE, 1, 1);
+	set_msr_interception(msrpm_va, MSR_KERNEL_GS_BASE, 1, 1);
+	set_msr_interception(msrpm_va, MSR_LSTAR, 1, 1);
+	set_msr_interception(msrpm_va, MSR_CSTAR, 1, 1);
+	set_msr_interception(msrpm_va, MSR_SYSCALL_MASK, 1, 1);
+#endif
+	set_msr_interception(msrpm_va, MSR_K6_STAR, 1, 1);
+	set_msr_interception(msrpm_va, MSR_IA32_SYSENTER_CS, 1, 1);
+	set_msr_interception(msrpm_va, MSR_IA32_SYSENTER_ESP, 1, 1);
+	set_msr_interception(msrpm_va, MSR_IA32_SYSENTER_EIP, 1, 1);
+
+	for_each_online_cpu(cpu) {
+		r = svm_cpu_init(cpu);
+		if (r)
+			goto err_2;
+	}
+	return 0;
+
+err_2:
+	__free_pages(msrpm_pages, MSRPM_ALLOC_ORDER);
+	msrpm_base = 0;
+err_1:
+	__free_pages(iopm_pages, IOPM_ALLOC_ORDER);
+	iopm_base = 0;
+	return r;
+}
+
+static __exit void svm_hardware_unsetup(void)
+{
+	__free_pages(pfn_to_page(msrpm_base >> PAGE_SHIFT), MSRPM_ALLOC_ORDER);
+	__free_pages(pfn_to_page(iopm_base >> PAGE_SHIFT), IOPM_ALLOC_ORDER);
+	iopm_base = msrpm_base = 0;
+}
+
+static void init_seg(struct vmcb_seg *seg)
+{
+	seg->selector = 0;
+	seg->attrib = SVM_SELECTOR_P_MASK | SVM_SELECTOR_S_MASK |
+		SVM_SELECTOR_WRITE_MASK; /* Read/Write Data Segment */
+	seg->limit = 0xffff;
+	seg->base = 0;
+}
+
+static void init_sys_seg(struct vmcb_seg *seg, uint32_t type)
+{
+	seg->selector = 0;
+	seg->attrib = SVM_SELECTOR_P_MASK | type;
+	seg->limit = 0xffff;
+	seg->base = 0;
+}
+
+static void init_vmcb(struct vmcb *vmcb)
+{
+	struct vmcb_control_area *control = &vmcb->control;
+	struct vmcb_save_area *save = &vmcb->save;
+
+	control->intercept_cr_read = 	INTERCEPT_CR0_MASK |
+					INTERCEPT_CR3_MASK |
+					INTERCEPT_CR4_MASK |
+					INTERCEPT_CR8_MASK;
+
+	control->intercept_cr_write = 	INTERCEPT_CR0_MASK |
+					INTERCEPT_CR3_MASK |
+					INTERCEPT_CR4_MASK |
+					INTERCEPT_CR8_MASK;
+
+	control->intercept_dr_read = 	INTERCEPT_DR0_MASK |
+					INTERCEPT_DR1_MASK |
+					INTERCEPT_DR2_MASK |
+					INTERCEPT_DR3_MASK;
+
+	control->intercept_dr_write = 	INTERCEPT_DR0_MASK |
+					INTERCEPT_DR1_MASK |
+					INTERCEPT_DR2_MASK |
+					INTERCEPT_DR3_MASK |
+					INTERCEPT_DR5_MASK |
+					INTERCEPT_DR7_MASK;
+
+	control->intercept_exceptions = (1 << PF_VECTOR) |
+					(1 << UD_VECTOR);
+
+
+	control->intercept = 	(1ULL << INTERCEPT_INTR) |
+				(1ULL << INTERCEPT_NMI) |
+				(1ULL << INTERCEPT_SMI) |
+		/*
+		 * selective cr0 intercept bug?
+		 *    	0:   0f 22 d8                mov    %eax,%cr3
+		 *	3:   0f 20 c0                mov    %cr0,%eax
+		 *	6:   0d 00 00 00 80          or     $0x80000000,%eax
+		 *	b:   0f 22 c0                mov    %eax,%cr0
+		 * set cr3 ->interception
+		 * get cr0 ->interception
+		 * set cr0 -> no interception
+		 */
+		/*              (1ULL << INTERCEPT_SELECTIVE_CR0) | */
+				(1ULL << INTERCEPT_CPUID) |
+				(1ULL << INTERCEPT_INVD) |
+				(1ULL << INTERCEPT_HLT) |
+				(1ULL << INTERCEPT_INVLPGA) |
+				(1ULL << INTERCEPT_IOIO_PROT) |
+				(1ULL << INTERCEPT_MSR_PROT) |
+				(1ULL << INTERCEPT_TASK_SWITCH) |
+				(1ULL << INTERCEPT_SHUTDOWN) |
+				(1ULL << INTERCEPT_VMRUN) |
+				(1ULL << INTERCEPT_VMMCALL) |
+				(1ULL << INTERCEPT_VMLOAD) |
+				(1ULL << INTERCEPT_VMSAVE) |
+				(1ULL << INTERCEPT_STGI) |
+				(1ULL << INTERCEPT_CLGI) |
+				(1ULL << INTERCEPT_SKINIT) |
+				(1ULL << INTERCEPT_WBINVD) |
+				(1ULL << INTERCEPT_MONITOR) |
+				(1ULL << INTERCEPT_MWAIT);
+
+	control->iopm_base_pa = iopm_base;
+	control->msrpm_base_pa = msrpm_base;
+	control->tsc_offset = 0;
+	control->int_ctl = V_INTR_MASKING_MASK;
+
+	init_seg(&save->es);
+	init_seg(&save->ss);
+	init_seg(&save->ds);
+	init_seg(&save->fs);
+	init_seg(&save->gs);
+
+	save->cs.selector = 0xf000;
+	/* Executable/Readable Code Segment */
+	save->cs.attrib = SVM_SELECTOR_READ_MASK | SVM_SELECTOR_P_MASK |
+		SVM_SELECTOR_S_MASK | SVM_SELECTOR_CODE_MASK;
+	save->cs.limit = 0xffff;
+	/*
+	 * cs.base should really be 0xffff0000, but vmx can't handle that, so
+	 * be consistent with it.
+	 *
+	 * Replace when we have real mode working for vmx.
+	 */
+	save->cs.base = 0xf0000;
+
+	save->gdtr.limit = 0xffff;
+	save->idtr.limit = 0xffff;
+
+	init_sys_seg(&save->ldtr, SEG_TYPE_LDT);
+	init_sys_seg(&save->tr, SEG_TYPE_BUSY_TSS16);
+
+	save->efer = MSR_EFER_SVME_MASK;
+	save->dr6 = 0xffff0ff0;
+	save->dr7 = 0x400;
+	save->rflags = 2;
+	save->rip = 0x0000fff0;
+
+	/*
+	 * cr0 val on cpu init should be 0x60000010, we enable cpu
+	 * cache by default. the orderly way is to enable cache in bios.
+	 */
+	save->cr0 = 0x00000010 | X86_CR0_PG | X86_CR0_WP;
+	save->cr4 = X86_CR4_PAE;
+	/* rdx = ?? */
+}
+
+static int svm_vcpu_reset(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	init_vmcb(svm->vmcb);
+
+	if (vcpu->vcpu_id != 0) {
+		svm->vmcb->save.rip = 0;
+		svm->vmcb->save.cs.base = svm->vcpu.arch.sipi_vector << 12;
+		svm->vmcb->save.cs.selector = svm->vcpu.arch.sipi_vector << 8;
+	}
+
+	return 0;
+}
+
+static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
+{
+	struct vcpu_svm *svm;
+	struct page *page;
+	int err;
+
+	svm = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
+	if (!svm) {
+		err = -ENOMEM;
+		goto out;
+	}
+
+	err = kvm_vcpu_init(&svm->vcpu, kvm, id);
+	if (err)
+		goto free_svm;
+
+	page = alloc_page(GFP_KERNEL);
+	if (!page) {
+		err = -ENOMEM;
+		goto uninit;
+	}
+
+	svm->vmcb = page_address(page);
+	clear_page(svm->vmcb);
+	svm->vmcb_pa = page_to_pfn(page) << PAGE_SHIFT;
+	svm->asid_generation = 0;
+	memset(svm->db_regs, 0, sizeof(svm->db_regs));
+	init_vmcb(svm->vmcb);
+
+	fx_init(&svm->vcpu);
+	svm->vcpu.fpu_active = 1;
+	svm->vcpu.arch.apic_base = 0xfee00000 | MSR_IA32_APICBASE_ENABLE;
+	if (svm->vcpu.vcpu_id == 0)
+		svm->vcpu.arch.apic_base |= MSR_IA32_APICBASE_BSP;
+
+	return &svm->vcpu;
+
+uninit:
+	kvm_vcpu_uninit(&svm->vcpu);
+free_svm:
+	kmem_cache_free(kvm_vcpu_cache, svm);
+out:
+	return ERR_PTR(err);
+}
+
+static void svm_free_vcpu(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	__free_page(pfn_to_page(svm->vmcb_pa >> PAGE_SHIFT));
+	kvm_vcpu_uninit(vcpu);
+	kmem_cache_free(kvm_vcpu_cache, svm);
+}
+
+static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+	int i;
+
+	if (unlikely(cpu != vcpu->cpu)) {
+		u64 tsc_this, delta;
+
+		/*
+		 * Make sure that the guest sees a monotonically
+		 * increasing TSC.
+		 */
+		rdtscll(tsc_this);
+		delta = vcpu->arch.host_tsc - tsc_this;
+		svm->vmcb->control.tsc_offset += delta;
+		vcpu->cpu = cpu;
+		kvm_migrate_apic_timer(vcpu);
+	}
+
+	for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++)
+		rdmsrl(host_save_user_msrs[i], svm->host_user_msrs[i]);
+}
+
+static void svm_vcpu_put(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+	int i;
+
+	++vcpu->stat.host_state_reload;
+	for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++)
+		wrmsrl(host_save_user_msrs[i], svm->host_user_msrs[i]);
+
+	rdtscll(vcpu->arch.host_tsc);
+}
+
+static void svm_vcpu_decache(struct kvm_vcpu *vcpu)
+{
+}
+
+static void svm_cache_regs(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	vcpu->arch.regs[VCPU_REGS_RAX] = svm->vmcb->save.rax;
+	vcpu->arch.regs[VCPU_REGS_RSP] = svm->vmcb->save.rsp;
+	vcpu->arch.rip = svm->vmcb->save.rip;
+}
+
+static void svm_decache_regs(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+	svm->vmcb->save.rax = vcpu->arch.regs[VCPU_REGS_RAX];
+	svm->vmcb->save.rsp = vcpu->arch.regs[VCPU_REGS_RSP];
+	svm->vmcb->save.rip = vcpu->arch.rip;
+}
+
+static unsigned long svm_get_rflags(struct kvm_vcpu *vcpu)
+{
+	return to_svm(vcpu)->vmcb->save.rflags;
+}
+
+static void svm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
+{
+	to_svm(vcpu)->vmcb->save.rflags = rflags;
+}
+
+static struct vmcb_seg *svm_seg(struct kvm_vcpu *vcpu, int seg)
+{
+	struct vmcb_save_area *save = &to_svm(vcpu)->vmcb->save;
+
+	switch (seg) {
+	case VCPU_SREG_CS: return &save->cs;
+	case VCPU_SREG_DS: return &save->ds;
+	case VCPU_SREG_ES: return &save->es;
+	case VCPU_SREG_FS: return &save->fs;
+	case VCPU_SREG_GS: return &save->gs;
+	case VCPU_SREG_SS: return &save->ss;
+	case VCPU_SREG_TR: return &save->tr;
+	case VCPU_SREG_LDTR: return &save->ldtr;
+	}
+	BUG();
+	return NULL;
+}
+
+static u64 svm_get_segment_base(struct kvm_vcpu *vcpu, int seg)
+{
+	struct vmcb_seg *s = svm_seg(vcpu, seg);
+
+	return s->base;
+}
+
+static void svm_get_segment(struct kvm_vcpu *vcpu,
+			    struct kvm_segment *var, int seg)
+{
+	struct vmcb_seg *s = svm_seg(vcpu, seg);
+
+	var->base = s->base;
+	var->limit = s->limit;
+	var->selector = s->selector;
+	var->type = s->attrib & SVM_SELECTOR_TYPE_MASK;
+	var->s = (s->attrib >> SVM_SELECTOR_S_SHIFT) & 1;
+	var->dpl = (s->attrib >> SVM_SELECTOR_DPL_SHIFT) & 3;
+	var->present = (s->attrib >> SVM_SELECTOR_P_SHIFT) & 1;
+	var->avl = (s->attrib >> SVM_SELECTOR_AVL_SHIFT) & 1;
+	var->l = (s->attrib >> SVM_SELECTOR_L_SHIFT) & 1;
+	var->db = (s->attrib >> SVM_SELECTOR_DB_SHIFT) & 1;
+	var->g = (s->attrib >> SVM_SELECTOR_G_SHIFT) & 1;
+	var->unusable = !var->present;
+}
+
+static void svm_get_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	dt->limit = svm->vmcb->save.idtr.limit;
+	dt->base = svm->vmcb->save.idtr.base;
+}
+
+static void svm_set_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	svm->vmcb->save.idtr.limit = dt->limit;
+	svm->vmcb->save.idtr.base = dt->base ;
+}
+
+static void svm_get_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	dt->limit = svm->vmcb->save.gdtr.limit;
+	dt->base = svm->vmcb->save.gdtr.base;
+}
+
+static void svm_set_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	svm->vmcb->save.gdtr.limit = dt->limit;
+	svm->vmcb->save.gdtr.base = dt->base ;
+}
+
+static void svm_decache_cr4_guest_bits(struct kvm_vcpu *vcpu)
+{
+}
+
+static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+#ifdef CONFIG_X86_64
+	if (vcpu->arch.shadow_efer & EFER_LME) {
+		if (!is_paging(vcpu) && (cr0 & X86_CR0_PG)) {
+			vcpu->arch.shadow_efer |= EFER_LMA;
+			svm->vmcb->save.efer |= EFER_LMA | EFER_LME;
+		}
+
+		if (is_paging(vcpu) && !(cr0 & X86_CR0_PG)) {
+			vcpu->arch.shadow_efer &= ~EFER_LMA;
+			svm->vmcb->save.efer &= ~(EFER_LMA | EFER_LME);
+		}
+	}
+#endif
+	if ((vcpu->arch.cr0 & X86_CR0_TS) && !(cr0 & X86_CR0_TS)) {
+		svm->vmcb->control.intercept_exceptions &= ~(1 << NM_VECTOR);
+		vcpu->fpu_active = 1;
+	}
+
+	vcpu->arch.cr0 = cr0;
+	cr0 |= X86_CR0_PG | X86_CR0_WP;
+	cr0 &= ~(X86_CR0_CD | X86_CR0_NW);
+	svm->vmcb->save.cr0 = cr0;
+}
+
+static void svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
+{
+       vcpu->arch.cr4 = cr4;
+       to_svm(vcpu)->vmcb->save.cr4 = cr4 | X86_CR4_PAE;
+}
+
+static void svm_set_segment(struct kvm_vcpu *vcpu,
+			    struct kvm_segment *var, int seg)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+	struct vmcb_seg *s = svm_seg(vcpu, seg);
+
+	s->base = var->base;
+	s->limit = var->limit;
+	s->selector = var->selector;
+	if (var->unusable)
+		s->attrib = 0;
+	else {
+		s->attrib = (var->type & SVM_SELECTOR_TYPE_MASK);
+		s->attrib |= (var->s & 1) << SVM_SELECTOR_S_SHIFT;
+		s->attrib |= (var->dpl & 3) << SVM_SELECTOR_DPL_SHIFT;
+		s->attrib |= (var->present & 1) << SVM_SELECTOR_P_SHIFT;
+		s->attrib |= (var->avl & 1) << SVM_SELECTOR_AVL_SHIFT;
+		s->attrib |= (var->l & 1) << SVM_SELECTOR_L_SHIFT;
+		s->attrib |= (var->db & 1) << SVM_SELECTOR_DB_SHIFT;
+		s->attrib |= (var->g & 1) << SVM_SELECTOR_G_SHIFT;
+	}
+	if (seg == VCPU_SREG_CS)
+		svm->vmcb->save.cpl
+			= (svm->vmcb->save.cs.attrib
+			   >> SVM_SELECTOR_DPL_SHIFT) & 3;
+
+}
+
+/* FIXME:
+
+	svm(vcpu)->vmcb->control.int_ctl &= ~V_TPR_MASK;
+	svm(vcpu)->vmcb->control.int_ctl |= (sregs->cr8 & V_TPR_MASK);
+
+*/
+
+static int svm_guest_debug(struct kvm_vcpu *vcpu, struct kvm_debug_guest *dbg)
+{
+	return -EOPNOTSUPP;
+}
+
+static int svm_get_irq(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+	u32 exit_int_info = svm->vmcb->control.exit_int_info;
+
+	if (is_external_interrupt(exit_int_info))
+		return exit_int_info & SVM_EVTINJ_VEC_MASK;
+	return -1;
+}
+
+static void load_host_msrs(struct kvm_vcpu *vcpu)
+{
+#ifdef CONFIG_X86_64
+	wrmsrl(MSR_GS_BASE, to_svm(vcpu)->host_gs_base);
+#endif
+}
+
+static void save_host_msrs(struct kvm_vcpu *vcpu)
+{
+#ifdef CONFIG_X86_64
+	rdmsrl(MSR_GS_BASE, to_svm(vcpu)->host_gs_base);
+#endif
+}
+
+static void new_asid(struct vcpu_svm *svm, struct svm_cpu_data *svm_data)
+{
+	if (svm_data->next_asid > svm_data->max_asid) {
+		++svm_data->asid_generation;
+		svm_data->next_asid = 1;
+		svm->vmcb->control.tlb_ctl = TLB_CONTROL_FLUSH_ALL_ASID;
+	}
+
+	svm->vcpu.cpu = svm_data->cpu;
+	svm->asid_generation = svm_data->asid_generation;
+	svm->vmcb->control.asid = svm_data->next_asid++;
+}
+
+static unsigned long svm_get_dr(struct kvm_vcpu *vcpu, int dr)
+{
+	return to_svm(vcpu)->db_regs[dr];
+}
+
+static void svm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long value,
+		       int *exception)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	*exception = 0;
+
+	if (svm->vmcb->save.dr7 & DR7_GD_MASK) {
+		svm->vmcb->save.dr7 &= ~DR7_GD_MASK;
+		svm->vmcb->save.dr6 |= DR6_BD_MASK;
+		*exception = DB_VECTOR;
+		return;
+	}
+
+	switch (dr) {
+	case 0 ... 3:
+		svm->db_regs[dr] = value;
+		return;
+	case 4 ... 5:
+		if (vcpu->arch.cr4 & X86_CR4_DE) {
+			*exception = UD_VECTOR;
+			return;
+		}
+	case 7: {
+		if (value & ~((1ULL << 32) - 1)) {
+			*exception = GP_VECTOR;
+			return;
+		}
+		svm->vmcb->save.dr7 = value;
+		return;
+	}
+	default:
+		printk(KERN_DEBUG "%s: unexpected dr %u\n",
+		       __FUNCTION__, dr);
+		*exception = UD_VECTOR;
+		return;
+	}
+}
+
+static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	u32 exit_int_info = svm->vmcb->control.exit_int_info;
+	struct kvm *kvm = svm->vcpu.kvm;
+	u64 fault_address;
+	u32 error_code;
+
+	if (!irqchip_in_kernel(kvm) &&
+		is_external_interrupt(exit_int_info))
+		push_irq(&svm->vcpu, exit_int_info & SVM_EVTINJ_VEC_MASK);
+
+	fault_address  = svm->vmcb->control.exit_info_2;
+	error_code = svm->vmcb->control.exit_info_1;
+	return kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code);
+}
+
+static int ud_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	int er;
+
+	er = emulate_instruction(&svm->vcpu, kvm_run, 0, 0, 0);
+	if (er != EMULATE_DONE)
+		kvm_queue_exception(&svm->vcpu, UD_VECTOR);
+	return 1;
+}
+
+static int nm_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	svm->vmcb->control.intercept_exceptions &= ~(1 << NM_VECTOR);
+	if (!(svm->vcpu.arch.cr0 & X86_CR0_TS))
+		svm->vmcb->save.cr0 &= ~X86_CR0_TS;
+	svm->vcpu.fpu_active = 1;
+
+	return 1;
+}
+
+static int shutdown_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	/*
+	 * VMCB is undefined after a SHUTDOWN intercept
+	 * so reinitialize it.
+	 */
+	clear_page(svm->vmcb);
+	init_vmcb(svm->vmcb);
+
+	kvm_run->exit_reason = KVM_EXIT_SHUTDOWN;
+	return 0;
+}
+
+static int io_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	u32 io_info = svm->vmcb->control.exit_info_1; /* address size bug? */
+	int size, down, in, string, rep;
+	unsigned port;
+
+	++svm->vcpu.stat.io_exits;
+
+	svm->next_rip = svm->vmcb->control.exit_info_2;
+
+	string = (io_info & SVM_IOIO_STR_MASK) != 0;
+
+	if (string) {
+		if (emulate_instruction(&svm->vcpu,
+					kvm_run, 0, 0, 0) == EMULATE_DO_MMIO)
+			return 0;
+		return 1;
+	}
+
+	in = (io_info & SVM_IOIO_TYPE_MASK) != 0;
+	port = io_info >> 16;
+	size = (io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT;
+	rep = (io_info & SVM_IOIO_REP_MASK) != 0;
+	down = (svm->vmcb->save.rflags & X86_EFLAGS_DF) != 0;
+
+	return kvm_emulate_pio(&svm->vcpu, kvm_run, in, size, port);
+}
+
+static int nop_on_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	return 1;
+}
+
+static int halt_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	svm->next_rip = svm->vmcb->save.rip + 1;
+	skip_emulated_instruction(&svm->vcpu);
+	return kvm_emulate_halt(&svm->vcpu);
+}
+
+static int vmmcall_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	svm->next_rip = svm->vmcb->save.rip + 3;
+	skip_emulated_instruction(&svm->vcpu);
+	kvm_emulate_hypercall(&svm->vcpu);
+	return 1;
+}
+
+static int invalid_op_interception(struct vcpu_svm *svm,
+				   struct kvm_run *kvm_run)
+{
+	kvm_queue_exception(&svm->vcpu, UD_VECTOR);
+	return 1;
+}
+
+static int task_switch_interception(struct vcpu_svm *svm,
+				    struct kvm_run *kvm_run)
+{
+	pr_unimpl(&svm->vcpu, "%s: task switch is unsupported\n", __FUNCTION__);
+	kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
+	return 0;
+}
+
+static int cpuid_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	svm->next_rip = svm->vmcb->save.rip + 2;
+	kvm_emulate_cpuid(&svm->vcpu);
+	return 1;
+}
+
+static int emulate_on_interception(struct vcpu_svm *svm,
+				   struct kvm_run *kvm_run)
+{
+	if (emulate_instruction(&svm->vcpu, NULL, 0, 0, 0) != EMULATE_DONE)
+		pr_unimpl(&svm->vcpu, "%s: failed\n", __FUNCTION__);
+	return 1;
+}
+
+static int cr8_write_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	emulate_instruction(&svm->vcpu, NULL, 0, 0, 0);
+	if (irqchip_in_kernel(svm->vcpu.kvm))
+		return 1;
+	kvm_run->exit_reason = KVM_EXIT_SET_TPR;
+	return 0;
+}
+
+static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	switch (ecx) {
+	case MSR_IA32_TIME_STAMP_COUNTER: {
+		u64 tsc;
+
+		rdtscll(tsc);
+		*data = svm->vmcb->control.tsc_offset + tsc;
+		break;
+	}
+	case MSR_K6_STAR:
+		*data = svm->vmcb->save.star;
+		break;
+#ifdef CONFIG_X86_64
+	case MSR_LSTAR:
+		*data = svm->vmcb->save.lstar;
+		break;
+	case MSR_CSTAR:
+		*data = svm->vmcb->save.cstar;
+		break;
+	case MSR_KERNEL_GS_BASE:
+		*data = svm->vmcb->save.kernel_gs_base;
+		break;
+	case MSR_SYSCALL_MASK:
+		*data = svm->vmcb->save.sfmask;
+		break;
+#endif
+	case MSR_IA32_SYSENTER_CS:
+		*data = svm->vmcb->save.sysenter_cs;
+		break;
+	case MSR_IA32_SYSENTER_EIP:
+		*data = svm->vmcb->save.sysenter_eip;
+		break;
+	case MSR_IA32_SYSENTER_ESP:
+		*data = svm->vmcb->save.sysenter_esp;
+		break;
+	default:
+		return kvm_get_msr_common(vcpu, ecx, data);
+	}
+	return 0;
+}
+
+static int rdmsr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	u32 ecx = svm->vcpu.arch.regs[VCPU_REGS_RCX];
+	u64 data;
+
+	if (svm_get_msr(&svm->vcpu, ecx, &data))
+		kvm_inject_gp(&svm->vcpu, 0);
+	else {
+		svm->vmcb->save.rax = data & 0xffffffff;
+		svm->vcpu.arch.regs[VCPU_REGS_RDX] = data >> 32;
+		svm->next_rip = svm->vmcb->save.rip + 2;
+		skip_emulated_instruction(&svm->vcpu);
+	}
+	return 1;
+}
+
+static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	switch (ecx) {
+	case MSR_IA32_TIME_STAMP_COUNTER: {
+		u64 tsc;
+
+		rdtscll(tsc);
+		svm->vmcb->control.tsc_offset = data - tsc;
+		break;
+	}
+	case MSR_K6_STAR:
+		svm->vmcb->save.star = data;
+		break;
+#ifdef CONFIG_X86_64
+	case MSR_LSTAR:
+		svm->vmcb->save.lstar = data;
+		break;
+	case MSR_CSTAR:
+		svm->vmcb->save.cstar = data;
+		break;
+	case MSR_KERNEL_GS_BASE:
+		svm->vmcb->save.kernel_gs_base = data;
+		break;
+	case MSR_SYSCALL_MASK:
+		svm->vmcb->save.sfmask = data;
+		break;
+#endif
+	case MSR_IA32_SYSENTER_CS:
+		svm->vmcb->save.sysenter_cs = data;
+		break;
+	case MSR_IA32_SYSENTER_EIP:
+		svm->vmcb->save.sysenter_eip = data;
+		break;
+	case MSR_IA32_SYSENTER_ESP:
+		svm->vmcb->save.sysenter_esp = data;
+		break;
+	case MSR_K7_EVNTSEL0:
+	case MSR_K7_EVNTSEL1:
+	case MSR_K7_EVNTSEL2:
+	case MSR_K7_EVNTSEL3:
+		/*
+		 * only support writing 0 to the performance counters for now
+		 * to make Windows happy. Should be replaced by a real
+		 * performance counter emulation later.
+		 */
+		if (data != 0)
+			goto unhandled;
+		break;
+	default:
+	unhandled:
+		return kvm_set_msr_common(vcpu, ecx, data);
+	}
+	return 0;
+}
+
+static int wrmsr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	u32 ecx = svm->vcpu.arch.regs[VCPU_REGS_RCX];
+	u64 data = (svm->vmcb->save.rax & -1u)
+		| ((u64)(svm->vcpu.arch.regs[VCPU_REGS_RDX] & -1u) << 32);
+	svm->next_rip = svm->vmcb->save.rip + 2;
+	if (svm_set_msr(&svm->vcpu, ecx, data))
+		kvm_inject_gp(&svm->vcpu, 0);
+	else
+		skip_emulated_instruction(&svm->vcpu);
+	return 1;
+}
+
+static int msr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	if (svm->vmcb->control.exit_info_1)
+		return wrmsr_interception(svm, kvm_run);
+	else
+		return rdmsr_interception(svm, kvm_run);
+}
+
+static int interrupt_window_interception(struct vcpu_svm *svm,
+				   struct kvm_run *kvm_run)
+{
+	svm->vmcb->control.intercept &= ~(1ULL << INTERCEPT_VINTR);
+	svm->vmcb->control.int_ctl &= ~V_IRQ_MASK;
+	/*
+	 * If the user space waits to inject interrupts, exit as soon as
+	 * possible
+	 */
+	if (kvm_run->request_interrupt_window &&
+	    !svm->vcpu.arch.irq_summary) {
+		++svm->vcpu.stat.irq_window_exits;
+		kvm_run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN;
+		return 0;
+	}
+
+	return 1;
+}
+
+static int (*svm_exit_handlers[])(struct vcpu_svm *svm,
+				      struct kvm_run *kvm_run) = {
+	[SVM_EXIT_READ_CR0]           		= emulate_on_interception,
+	[SVM_EXIT_READ_CR3]           		= emulate_on_interception,
+	[SVM_EXIT_READ_CR4]           		= emulate_on_interception,
+	[SVM_EXIT_READ_CR8]           		= emulate_on_interception,
+	/* for now: */
+	[SVM_EXIT_WRITE_CR0]          		= emulate_on_interception,
+	[SVM_EXIT_WRITE_CR3]          		= emulate_on_interception,
+	[SVM_EXIT_WRITE_CR4]          		= emulate_on_interception,
+	[SVM_EXIT_WRITE_CR8]          		= cr8_write_interception,
+	[SVM_EXIT_READ_DR0] 			= emulate_on_interception,
+	[SVM_EXIT_READ_DR1]			= emulate_on_interception,
+	[SVM_EXIT_READ_DR2]			= emulate_on_interception,
+	[SVM_EXIT_READ_DR3]			= emulate_on_interception,
+	[SVM_EXIT_WRITE_DR0]			= emulate_on_interception,
+	[SVM_EXIT_WRITE_DR1]			= emulate_on_interception,
+	[SVM_EXIT_WRITE_DR2]			= emulate_on_interception,
+	[SVM_EXIT_WRITE_DR3]			= emulate_on_interception,
+	[SVM_EXIT_WRITE_DR5]			= emulate_on_interception,
+	[SVM_EXIT_WRITE_DR7]			= emulate_on_interception,
+	[SVM_EXIT_EXCP_BASE + UD_VECTOR]	= ud_interception,
+	[SVM_EXIT_EXCP_BASE + PF_VECTOR] 	= pf_interception,
+	[SVM_EXIT_EXCP_BASE + NM_VECTOR] 	= nm_interception,
+	[SVM_EXIT_INTR] 			= nop_on_interception,
+	[SVM_EXIT_NMI]				= nop_on_interception,
+	[SVM_EXIT_SMI]				= nop_on_interception,
+	[SVM_EXIT_INIT]				= nop_on_interception,
+	[SVM_EXIT_VINTR]			= interrupt_window_interception,
+	/* [SVM_EXIT_CR0_SEL_WRITE]		= emulate_on_interception, */
+	[SVM_EXIT_CPUID]			= cpuid_interception,
+	[SVM_EXIT_INVD]                         = emulate_on_interception,
+	[SVM_EXIT_HLT]				= halt_interception,
+	[SVM_EXIT_INVLPG]			= emulate_on_interception,
+	[SVM_EXIT_INVLPGA]			= invalid_op_interception,
+	[SVM_EXIT_IOIO] 		  	= io_interception,
+	[SVM_EXIT_MSR]				= msr_interception,
+	[SVM_EXIT_TASK_SWITCH]			= task_switch_interception,
+	[SVM_EXIT_SHUTDOWN]			= shutdown_interception,
+	[SVM_EXIT_VMRUN]			= invalid_op_interception,
+	[SVM_EXIT_VMMCALL]			= vmmcall_interception,
+	[SVM_EXIT_VMLOAD]			= invalid_op_interception,
+	[SVM_EXIT_VMSAVE]			= invalid_op_interception,
+	[SVM_EXIT_STGI]				= invalid_op_interception,
+	[SVM_EXIT_CLGI]				= invalid_op_interception,
+	[SVM_EXIT_SKINIT]			= invalid_op_interception,
+	[SVM_EXIT_WBINVD]                       = emulate_on_interception,
+	[SVM_EXIT_MONITOR]			= invalid_op_interception,
+	[SVM_EXIT_MWAIT]			= invalid_op_interception,
+};
+
+
+static int handle_exit(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+	u32 exit_code = svm->vmcb->control.exit_code;
+
+	kvm_reput_irq(svm);
+
+	if (svm->vmcb->control.exit_code == SVM_EXIT_ERR) {
+		kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY;
+		kvm_run->fail_entry.hardware_entry_failure_reason
+			= svm->vmcb->control.exit_code;
+		return 0;
+	}
+
+	if (is_external_interrupt(svm->vmcb->control.exit_int_info) &&
+	    exit_code != SVM_EXIT_EXCP_BASE + PF_VECTOR)
+		printk(KERN_ERR "%s: unexpected exit_ini_info 0x%x "
+		       "exit_code 0x%x\n",
+		       __FUNCTION__, svm->vmcb->control.exit_int_info,
+		       exit_code);
+
+	if (exit_code >= ARRAY_SIZE(svm_exit_handlers)
+	    || !svm_exit_handlers[exit_code]) {
+		kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
+		kvm_run->hw.hardware_exit_reason = exit_code;
+		return 0;
+	}
+
+	return svm_exit_handlers[exit_code](svm, kvm_run);
+}
+
+static void reload_tss(struct kvm_vcpu *vcpu)
+{
+	int cpu = raw_smp_processor_id();
+
+	struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu);
+	svm_data->tss_desc->type = 9; /* available 32/64-bit TSS */
+	load_TR_desc();
+}
+
+static void pre_svm_run(struct vcpu_svm *svm)
+{
+	int cpu = raw_smp_processor_id();
+
+	struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu);
+
+	svm->vmcb->control.tlb_ctl = TLB_CONTROL_DO_NOTHING;
+	if (svm->vcpu.cpu != cpu ||
+	    svm->asid_generation != svm_data->asid_generation)
+		new_asid(svm, svm_data);
+}
+
+
+static inline void svm_inject_irq(struct vcpu_svm *svm, int irq)
+{
+	struct vmcb_control_area *control;
+
+	control = &svm->vmcb->control;
+	control->int_vector = irq;
+	control->int_ctl &= ~V_INTR_PRIO_MASK;
+	control->int_ctl |= V_IRQ_MASK |
+		((/*control->int_vector >> 4*/ 0xf) << V_INTR_PRIO_SHIFT);
+}
+
+static void svm_set_irq(struct kvm_vcpu *vcpu, int irq)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	svm_inject_irq(svm, irq);
+}
+
+static void svm_intr_assist(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+	struct vmcb *vmcb = svm->vmcb;
+	int intr_vector = -1;
+
+	if ((vmcb->control.exit_int_info & SVM_EVTINJ_VALID) &&
+	    ((vmcb->control.exit_int_info & SVM_EVTINJ_TYPE_MASK) == 0)) {
+		intr_vector = vmcb->control.exit_int_info &
+			      SVM_EVTINJ_VEC_MASK;
+		vmcb->control.exit_int_info = 0;
+		svm_inject_irq(svm, intr_vector);
+		return;
+	}
+
+	if (vmcb->control.int_ctl & V_IRQ_MASK)
+		return;
+
+	if (!kvm_cpu_has_interrupt(vcpu))
+		return;
+
+	if (!(vmcb->save.rflags & X86_EFLAGS_IF) ||
+	    (vmcb->control.int_state & SVM_INTERRUPT_SHADOW_MASK) ||
+	    (vmcb->control.event_inj & SVM_EVTINJ_VALID)) {
+		/* unable to deliver irq, set pending irq */
+		vmcb->control.intercept |= (1ULL << INTERCEPT_VINTR);
+		svm_inject_irq(svm, 0x0);
+		return;
+	}
+	/* Okay, we can deliver the interrupt: grab it and update PIC state. */
+	intr_vector = kvm_cpu_get_interrupt(vcpu);
+	svm_inject_irq(svm, intr_vector);
+	kvm_timer_intr_post(vcpu, intr_vector);
+}
+
+static void kvm_reput_irq(struct vcpu_svm *svm)
+{
+	struct vmcb_control_area *control = &svm->vmcb->control;
+
+	if ((control->int_ctl & V_IRQ_MASK)
+	    && !irqchip_in_kernel(svm->vcpu.kvm)) {
+		control->int_ctl &= ~V_IRQ_MASK;
+		push_irq(&svm->vcpu, control->int_vector);
+	}
+
+	svm->vcpu.arch.interrupt_window_open =
+		!(control->int_state & SVM_INTERRUPT_SHADOW_MASK);
+}
+
+static void svm_do_inject_vector(struct vcpu_svm *svm)
+{
+	struct kvm_vcpu *vcpu = &svm->vcpu;
+	int word_index = __ffs(vcpu->arch.irq_summary);
+	int bit_index = __ffs(vcpu->arch.irq_pending[word_index]);
+	int irq = word_index * BITS_PER_LONG + bit_index;
+
+	clear_bit(bit_index, &vcpu->arch.irq_pending[word_index]);
+	if (!vcpu->arch.irq_pending[word_index])
+		clear_bit(word_index, &vcpu->arch.irq_summary);
+	svm_inject_irq(svm, irq);
+}
+
+static void do_interrupt_requests(struct kvm_vcpu *vcpu,
+				       struct kvm_run *kvm_run)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+	struct vmcb_control_area *control = &svm->vmcb->control;
+
+	svm->vcpu.arch.interrupt_window_open =
+		(!(control->int_state & SVM_INTERRUPT_SHADOW_MASK) &&
+		 (svm->vmcb->save.rflags & X86_EFLAGS_IF));
+
+	if (svm->vcpu.arch.interrupt_window_open && svm->vcpu.arch.irq_summary)
+		/*
+		 * If interrupts enabled, and not blocked by sti or mov ss. Good.
+		 */
+		svm_do_inject_vector(svm);
+
+	/*
+	 * Interrupts blocked.  Wait for unblock.
+	 */
+	if (!svm->vcpu.arch.interrupt_window_open &&
+	    (svm->vcpu.arch.irq_summary || kvm_run->request_interrupt_window))
+		control->intercept |= 1ULL << INTERCEPT_VINTR;
+	 else
+		control->intercept &= ~(1ULL << INTERCEPT_VINTR);
+}
+
+static int svm_set_tss_addr(struct kvm *kvm, unsigned int addr)
+{
+	return 0;
+}
+
+static void save_db_regs(unsigned long *db_regs)
+{
+	asm volatile ("mov %%dr0, %0" : "=r"(db_regs[0]));
+	asm volatile ("mov %%dr1, %0" : "=r"(db_regs[1]));
+	asm volatile ("mov %%dr2, %0" : "=r"(db_regs[2]));
+	asm volatile ("mov %%dr3, %0" : "=r"(db_regs[3]));
+}
+
+static void load_db_regs(unsigned long *db_regs)
+{
+	asm volatile ("mov %0, %%dr0" : : "r"(db_regs[0]));
+	asm volatile ("mov %0, %%dr1" : : "r"(db_regs[1]));
+	asm volatile ("mov %0, %%dr2" : : "r"(db_regs[2]));
+	asm volatile ("mov %0, %%dr3" : : "r"(db_regs[3]));
+}
+
+static void svm_flush_tlb(struct kvm_vcpu *vcpu)
+{
+	force_new_asid(vcpu);
+}
+
+static void svm_prepare_guest_switch(struct kvm_vcpu *vcpu)
+{
+}
+
+static void svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+	u16 fs_selector;
+	u16 gs_selector;
+	u16 ldt_selector;
+
+	pre_svm_run(svm);
+
+	save_host_msrs(vcpu);
+	fs_selector = read_fs();
+	gs_selector = read_gs();
+	ldt_selector = read_ldt();
+	svm->host_cr2 = kvm_read_cr2();
+	svm->host_dr6 = read_dr6();
+	svm->host_dr7 = read_dr7();
+	svm->vmcb->save.cr2 = vcpu->arch.cr2;
+
+	if (svm->vmcb->save.dr7 & 0xff) {
+		write_dr7(0);
+		save_db_regs(svm->host_db_regs);
+		load_db_regs(svm->db_regs);
+	}
+
+	clgi();
+
+	local_irq_enable();
+
+	asm volatile (
+#ifdef CONFIG_X86_64
+		"push %%rbp; \n\t"
+#else
+		"push %%ebp; \n\t"
+#endif
+
+#ifdef CONFIG_X86_64
+		"mov %c[rbx](%[svm]), %%rbx \n\t"
+		"mov %c[rcx](%[svm]), %%rcx \n\t"
+		"mov %c[rdx](%[svm]), %%rdx \n\t"
+		"mov %c[rsi](%[svm]), %%rsi \n\t"
+		"mov %c[rdi](%[svm]), %%rdi \n\t"
+		"mov %c[rbp](%[svm]), %%rbp \n\t"
+		"mov %c[r8](%[svm]),  %%r8  \n\t"
+		"mov %c[r9](%[svm]),  %%r9  \n\t"
+		"mov %c[r10](%[svm]), %%r10 \n\t"
+		"mov %c[r11](%[svm]), %%r11 \n\t"
+		"mov %c[r12](%[svm]), %%r12 \n\t"
+		"mov %c[r13](%[svm]), %%r13 \n\t"
+		"mov %c[r14](%[svm]), %%r14 \n\t"
+		"mov %c[r15](%[svm]), %%r15 \n\t"
+#else
+		"mov %c[rbx](%[svm]), %%ebx \n\t"
+		"mov %c[rcx](%[svm]), %%ecx \n\t"
+		"mov %c[rdx](%[svm]), %%edx \n\t"
+		"mov %c[rsi](%[svm]), %%esi \n\t"
+		"mov %c[rdi](%[svm]), %%edi \n\t"
+		"mov %c[rbp](%[svm]), %%ebp \n\t"
+#endif
+
+#ifdef CONFIG_X86_64
+		/* Enter guest mode */
+		"push %%rax \n\t"
+		"mov %c[vmcb](%[svm]), %%rax \n\t"
+		SVM_VMLOAD "\n\t"
+		SVM_VMRUN "\n\t"
+		SVM_VMSAVE "\n\t"
+		"pop %%rax \n\t"
+#else
+		/* Enter guest mode */
+		"push %%eax \n\t"
+		"mov %c[vmcb](%[svm]), %%eax \n\t"
+		SVM_VMLOAD "\n\t"
+		SVM_VMRUN "\n\t"
+		SVM_VMSAVE "\n\t"
+		"pop %%eax \n\t"
+#endif
+
+		/* Save guest registers, load host registers */
+#ifdef CONFIG_X86_64
+		"mov %%rbx, %c[rbx](%[svm]) \n\t"
+		"mov %%rcx, %c[rcx](%[svm]) \n\t"
+		"mov %%rdx, %c[rdx](%[svm]) \n\t"
+		"mov %%rsi, %c[rsi](%[svm]) \n\t"
+		"mov %%rdi, %c[rdi](%[svm]) \n\t"
+		"mov %%rbp, %c[rbp](%[svm]) \n\t"
+		"mov %%r8,  %c[r8](%[svm]) \n\t"
+		"mov %%r9,  %c[r9](%[svm]) \n\t"
+		"mov %%r10, %c[r10](%[svm]) \n\t"
+		"mov %%r11, %c[r11](%[svm]) \n\t"
+		"mov %%r12, %c[r12](%[svm]) \n\t"
+		"mov %%r13, %c[r13](%[svm]) \n\t"
+		"mov %%r14, %c[r14](%[svm]) \n\t"
+		"mov %%r15, %c[r15](%[svm]) \n\t"
+
+		"pop  %%rbp; \n\t"
+#else
+		"mov %%ebx, %c[rbx](%[svm]) \n\t"
+		"mov %%ecx, %c[rcx](%[svm]) \n\t"
+		"mov %%edx, %c[rdx](%[svm]) \n\t"
+		"mov %%esi, %c[rsi](%[svm]) \n\t"
+		"mov %%edi, %c[rdi](%[svm]) \n\t"
+		"mov %%ebp, %c[rbp](%[svm]) \n\t"
+
+		"pop  %%ebp; \n\t"
+#endif
+		:
+		: [svm]"a"(svm),
+		  [vmcb]"i"(offsetof(struct vcpu_svm, vmcb_pa)),
+		  [rbx]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RBX])),
+		  [rcx]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RCX])),
+		  [rdx]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RDX])),
+		  [rsi]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RSI])),
+		  [rdi]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RDI])),
+		  [rbp]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RBP]))
+#ifdef CONFIG_X86_64
+		  , [r8]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R8])),
+		  [r9]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R9])),
+		  [r10]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R10])),
+		  [r11]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R11])),
+		  [r12]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R12])),
+		  [r13]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R13])),
+		  [r14]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R14])),
+		  [r15]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R15]))
+#endif
+		: "cc", "memory"
+#ifdef CONFIG_X86_64
+		, "rbx", "rcx", "rdx", "rsi", "rdi"
+		, "r8", "r9", "r10", "r11" , "r12", "r13", "r14", "r15"
+#else
+		, "ebx", "ecx", "edx" , "esi", "edi"
+#endif
+		);
+
+	if ((svm->vmcb->save.dr7 & 0xff))
+		load_db_regs(svm->host_db_regs);
+
+	vcpu->arch.cr2 = svm->vmcb->save.cr2;
+
+	write_dr6(svm->host_dr6);
+	write_dr7(svm->host_dr7);
+	kvm_write_cr2(svm->host_cr2);
+
+	load_fs(fs_selector);
+	load_gs(gs_selector);
+	load_ldt(ldt_selector);
+	load_host_msrs(vcpu);
+
+	reload_tss(vcpu);
+
+	local_irq_disable();
+
+	stgi();
+
+	svm->next_rip = 0;
+}
+
+static void svm_set_cr3(struct kvm_vcpu *vcpu, unsigned long root)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	svm->vmcb->save.cr3 = root;
+	force_new_asid(vcpu);
+
+	if (vcpu->fpu_active) {
+		svm->vmcb->control.intercept_exceptions |= (1 << NM_VECTOR);
+		svm->vmcb->save.cr0 |= X86_CR0_TS;
+		vcpu->fpu_active = 0;
+	}
+}
+
+static int is_disabled(void)
+{
+	u64 vm_cr;
+
+	rdmsrl(MSR_VM_CR, vm_cr);
+	if (vm_cr & (1 << SVM_VM_CR_SVM_DISABLE))
+		return 1;
+
+	return 0;
+}
+
+static void
+svm_patch_hypercall(struct kvm_vcpu *vcpu, unsigned char *hypercall)
+{
+	/*
+	 * Patch in the VMMCALL instruction:
+	 */
+	hypercall[0] = 0x0f;
+	hypercall[1] = 0x01;
+	hypercall[2] = 0xd9;
+}
+
+static void svm_check_processor_compat(void *rtn)
+{
+	*(int *)rtn = 0;
+}
+
+static struct kvm_x86_ops svm_x86_ops = {
+	.cpu_has_kvm_support = has_svm,
+	.disabled_by_bios = is_disabled,
+	.hardware_setup = svm_hardware_setup,
+	.hardware_unsetup = svm_hardware_unsetup,
+	.check_processor_compatibility = svm_check_processor_compat,
+	.hardware_enable = svm_hardware_enable,
+	.hardware_disable = svm_hardware_disable,
+
+	.vcpu_create = svm_create_vcpu,
+	.vcpu_free = svm_free_vcpu,
+	.vcpu_reset = svm_vcpu_reset,
+
+	.prepare_guest_switch = svm_prepare_guest_switch,
+	.vcpu_load = svm_vcpu_load,
+	.vcpu_put = svm_vcpu_put,
+	.vcpu_decache = svm_vcpu_decache,
+
+	.set_guest_debug = svm_guest_debug,
+	.get_msr = svm_get_msr,
+	.set_msr = svm_set_msr,
+	.get_segment_base = svm_get_segment_base,
+	.get_segment = svm_get_segment,
+	.set_segment = svm_set_segment,
+	.get_cs_db_l_bits = kvm_get_cs_db_l_bits,
+	.decache_cr4_guest_bits = svm_decache_cr4_guest_bits,
+	.set_cr0 = svm_set_cr0,
+	.set_cr3 = svm_set_cr3,
+	.set_cr4 = svm_set_cr4,
+	.set_efer = svm_set_efer,
+	.get_idt = svm_get_idt,
+	.set_idt = svm_set_idt,
+	.get_gdt = svm_get_gdt,
+	.set_gdt = svm_set_gdt,
+	.get_dr = svm_get_dr,
+	.set_dr = svm_set_dr,
+	.cache_regs = svm_cache_regs,
+	.decache_regs = svm_decache_regs,
+	.get_rflags = svm_get_rflags,
+	.set_rflags = svm_set_rflags,
+
+	.tlb_flush = svm_flush_tlb,
+
+	.run = svm_vcpu_run,
+	.handle_exit = handle_exit,
+	.skip_emulated_instruction = skip_emulated_instruction,
+	.patch_hypercall = svm_patch_hypercall,
+	.get_irq = svm_get_irq,
+	.set_irq = svm_set_irq,
+	.queue_exception = svm_queue_exception,
+	.exception_injected = svm_exception_injected,
+	.inject_pending_irq = svm_intr_assist,
+	.inject_pending_vectors = do_interrupt_requests,
+
+	.set_tss_addr = svm_set_tss_addr,
+};
+
+static int __init svm_init(void)
+{
+	return kvm_init(&svm_x86_ops, sizeof(struct vcpu_svm),
+			      THIS_MODULE);
+}
+
+static void __exit svm_exit(void)
+{
+	kvm_exit();
+}
+
+module_init(svm_init)
+module_exit(svm_exit)
diff --git a/arch/x86/kvm/svm.h b/arch/x86/kvm/svm.h
new file mode 100644
index 000000000000..5fd50491b555
--- /dev/null
+++ b/arch/x86/kvm/svm.h
@@ -0,0 +1,325 @@
+#ifndef __SVM_H
+#define __SVM_H
+
+enum {
+	INTERCEPT_INTR,
+	INTERCEPT_NMI,
+	INTERCEPT_SMI,
+	INTERCEPT_INIT,
+	INTERCEPT_VINTR,
+	INTERCEPT_SELECTIVE_CR0,
+	INTERCEPT_STORE_IDTR,
+	INTERCEPT_STORE_GDTR,
+	INTERCEPT_STORE_LDTR,
+	INTERCEPT_STORE_TR,
+	INTERCEPT_LOAD_IDTR,
+	INTERCEPT_LOAD_GDTR,
+	INTERCEPT_LOAD_LDTR,
+	INTERCEPT_LOAD_TR,
+	INTERCEPT_RDTSC,
+	INTERCEPT_RDPMC,
+	INTERCEPT_PUSHF,
+	INTERCEPT_POPF,
+	INTERCEPT_CPUID,
+	INTERCEPT_RSM,
+	INTERCEPT_IRET,
+	INTERCEPT_INTn,
+	INTERCEPT_INVD,
+	INTERCEPT_PAUSE,
+	INTERCEPT_HLT,
+	INTERCEPT_INVLPG,
+	INTERCEPT_INVLPGA,
+	INTERCEPT_IOIO_PROT,
+	INTERCEPT_MSR_PROT,
+	INTERCEPT_TASK_SWITCH,
+	INTERCEPT_FERR_FREEZE,
+	INTERCEPT_SHUTDOWN,
+	INTERCEPT_VMRUN,
+	INTERCEPT_VMMCALL,
+	INTERCEPT_VMLOAD,
+	INTERCEPT_VMSAVE,
+	INTERCEPT_STGI,
+	INTERCEPT_CLGI,
+	INTERCEPT_SKINIT,
+	INTERCEPT_RDTSCP,
+	INTERCEPT_ICEBP,
+	INTERCEPT_WBINVD,
+	INTERCEPT_MONITOR,
+	INTERCEPT_MWAIT,
+	INTERCEPT_MWAIT_COND,
+};
+
+
+struct __attribute__ ((__packed__)) vmcb_control_area {
+	u16 intercept_cr_read;
+	u16 intercept_cr_write;
+	u16 intercept_dr_read;
+	u16 intercept_dr_write;
+	u32 intercept_exceptions;
+	u64 intercept;
+	u8 reserved_1[44];
+	u64 iopm_base_pa;
+	u64 msrpm_base_pa;
+	u64 tsc_offset;
+	u32 asid;
+	u8 tlb_ctl;
+	u8 reserved_2[3];
+	u32 int_ctl;
+	u32 int_vector;
+	u32 int_state;
+	u8 reserved_3[4];
+	u32 exit_code;
+	u32 exit_code_hi;
+	u64 exit_info_1;
+	u64 exit_info_2;
+	u32 exit_int_info;
+	u32 exit_int_info_err;
+	u64 nested_ctl;
+	u8 reserved_4[16];
+	u32 event_inj;
+	u32 event_inj_err;
+	u64 nested_cr3;
+	u64 lbr_ctl;
+	u8 reserved_5[832];
+};
+
+
+#define TLB_CONTROL_DO_NOTHING 0
+#define TLB_CONTROL_FLUSH_ALL_ASID 1
+
+#define V_TPR_MASK 0x0f
+
+#define V_IRQ_SHIFT 8
+#define V_IRQ_MASK (1 << V_IRQ_SHIFT)
+
+#define V_INTR_PRIO_SHIFT 16
+#define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
+
+#define V_IGN_TPR_SHIFT 20
+#define V_IGN_TPR_MASK (1 << V_IGN_TPR_SHIFT)
+
+#define V_INTR_MASKING_SHIFT 24
+#define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
+
+#define SVM_INTERRUPT_SHADOW_MASK 1
+
+#define SVM_IOIO_STR_SHIFT 2
+#define SVM_IOIO_REP_SHIFT 3
+#define SVM_IOIO_SIZE_SHIFT 4
+#define SVM_IOIO_ASIZE_SHIFT 7
+
+#define SVM_IOIO_TYPE_MASK 1
+#define SVM_IOIO_STR_MASK (1 << SVM_IOIO_STR_SHIFT)
+#define SVM_IOIO_REP_MASK (1 << SVM_IOIO_REP_SHIFT)
+#define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
+#define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT)
+
+struct __attribute__ ((__packed__)) vmcb_seg {
+	u16 selector;
+	u16 attrib;
+	u32 limit;
+	u64 base;
+};
+
+struct __attribute__ ((__packed__)) vmcb_save_area {
+	struct vmcb_seg es;
+	struct vmcb_seg cs;
+	struct vmcb_seg ss;
+	struct vmcb_seg ds;
+	struct vmcb_seg fs;
+	struct vmcb_seg gs;
+	struct vmcb_seg gdtr;
+	struct vmcb_seg ldtr;
+	struct vmcb_seg idtr;
+	struct vmcb_seg tr;
+	u8 reserved_1[43];
+	u8 cpl;
+	u8 reserved_2[4];
+	u64 efer;
+	u8 reserved_3[112];
+	u64 cr4;
+	u64 cr3;
+	u64 cr0;
+	u64 dr7;
+	u64 dr6;
+	u64 rflags;
+	u64 rip;
+	u8 reserved_4[88];
+	u64 rsp;
+	u8 reserved_5[24];
+	u64 rax;
+	u64 star;
+	u64 lstar;
+	u64 cstar;
+	u64 sfmask;
+	u64 kernel_gs_base;
+	u64 sysenter_cs;
+	u64 sysenter_esp;
+	u64 sysenter_eip;
+	u64 cr2;
+	u8 reserved_6[32];
+	u64 g_pat;
+	u64 dbgctl;
+	u64 br_from;
+	u64 br_to;
+	u64 last_excp_from;
+	u64 last_excp_to;
+};
+
+struct __attribute__ ((__packed__)) vmcb {
+	struct vmcb_control_area control;
+	struct vmcb_save_area save;
+};
+
+#define SVM_CPUID_FEATURE_SHIFT 2
+#define SVM_CPUID_FUNC 0x8000000a
+
+#define MSR_EFER_SVME_MASK (1ULL << 12)
+#define MSR_VM_CR       0xc0010114
+#define MSR_VM_HSAVE_PA 0xc0010117ULL
+
+#define SVM_VM_CR_SVM_DISABLE 4
+
+#define SVM_SELECTOR_S_SHIFT 4
+#define SVM_SELECTOR_DPL_SHIFT 5
+#define SVM_SELECTOR_P_SHIFT 7
+#define SVM_SELECTOR_AVL_SHIFT 8
+#define SVM_SELECTOR_L_SHIFT 9
+#define SVM_SELECTOR_DB_SHIFT 10
+#define SVM_SELECTOR_G_SHIFT 11
+
+#define SVM_SELECTOR_TYPE_MASK (0xf)
+#define SVM_SELECTOR_S_MASK (1 << SVM_SELECTOR_S_SHIFT)
+#define SVM_SELECTOR_DPL_MASK (3 << SVM_SELECTOR_DPL_SHIFT)
+#define SVM_SELECTOR_P_MASK (1 << SVM_SELECTOR_P_SHIFT)
+#define SVM_SELECTOR_AVL_MASK (1 << SVM_SELECTOR_AVL_SHIFT)
+#define SVM_SELECTOR_L_MASK (1 << SVM_SELECTOR_L_SHIFT)
+#define SVM_SELECTOR_DB_MASK (1 << SVM_SELECTOR_DB_SHIFT)
+#define SVM_SELECTOR_G_MASK (1 << SVM_SELECTOR_G_SHIFT)
+
+#define SVM_SELECTOR_WRITE_MASK (1 << 1)
+#define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK
+#define SVM_SELECTOR_CODE_MASK (1 << 3)
+
+#define INTERCEPT_CR0_MASK 1
+#define INTERCEPT_CR3_MASK (1 << 3)
+#define INTERCEPT_CR4_MASK (1 << 4)
+#define INTERCEPT_CR8_MASK (1 << 8)
+
+#define INTERCEPT_DR0_MASK 1
+#define INTERCEPT_DR1_MASK (1 << 1)
+#define INTERCEPT_DR2_MASK (1 << 2)
+#define INTERCEPT_DR3_MASK (1 << 3)
+#define INTERCEPT_DR4_MASK (1 << 4)
+#define INTERCEPT_DR5_MASK (1 << 5)
+#define INTERCEPT_DR6_MASK (1 << 6)
+#define INTERCEPT_DR7_MASK (1 << 7)
+
+#define SVM_EVTINJ_VEC_MASK 0xff
+
+#define SVM_EVTINJ_TYPE_SHIFT 8
+#define SVM_EVTINJ_TYPE_MASK (7 << SVM_EVTINJ_TYPE_SHIFT)
+
+#define SVM_EVTINJ_TYPE_INTR (0 << SVM_EVTINJ_TYPE_SHIFT)
+#define SVM_EVTINJ_TYPE_NMI (2 << SVM_EVTINJ_TYPE_SHIFT)
+#define SVM_EVTINJ_TYPE_EXEPT (3 << SVM_EVTINJ_TYPE_SHIFT)
+#define SVM_EVTINJ_TYPE_SOFT (4 << SVM_EVTINJ_TYPE_SHIFT)
+
+#define SVM_EVTINJ_VALID (1 << 31)
+#define SVM_EVTINJ_VALID_ERR (1 << 11)
+
+#define SVM_EXITINTINFO_VEC_MASK SVM_EVTINJ_VEC_MASK
+
+#define	SVM_EXITINTINFO_TYPE_INTR SVM_EVTINJ_TYPE_INTR
+#define	SVM_EXITINTINFO_TYPE_NMI SVM_EVTINJ_TYPE_NMI
+#define	SVM_EXITINTINFO_TYPE_EXEPT SVM_EVTINJ_TYPE_EXEPT
+#define	SVM_EXITINTINFO_TYPE_SOFT SVM_EVTINJ_TYPE_SOFT
+
+#define SVM_EXITINTINFO_VALID SVM_EVTINJ_VALID
+#define SVM_EXITINTINFO_VALID_ERR SVM_EVTINJ_VALID_ERR
+
+#define	SVM_EXIT_READ_CR0 	0x000
+#define	SVM_EXIT_READ_CR3 	0x003
+#define	SVM_EXIT_READ_CR4 	0x004
+#define	SVM_EXIT_READ_CR8 	0x008
+#define	SVM_EXIT_WRITE_CR0 	0x010
+#define	SVM_EXIT_WRITE_CR3 	0x013
+#define	SVM_EXIT_WRITE_CR4 	0x014
+#define	SVM_EXIT_WRITE_CR8 	0x018
+#define	SVM_EXIT_READ_DR0 	0x020
+#define	SVM_EXIT_READ_DR1 	0x021
+#define	SVM_EXIT_READ_DR2 	0x022
+#define	SVM_EXIT_READ_DR3 	0x023
+#define	SVM_EXIT_READ_DR4 	0x024
+#define	SVM_EXIT_READ_DR5 	0x025
+#define	SVM_EXIT_READ_DR6 	0x026
+#define	SVM_EXIT_READ_DR7 	0x027
+#define	SVM_EXIT_WRITE_DR0 	0x030
+#define	SVM_EXIT_WRITE_DR1 	0x031
+#define	SVM_EXIT_WRITE_DR2 	0x032
+#define	SVM_EXIT_WRITE_DR3 	0x033
+#define	SVM_EXIT_WRITE_DR4 	0x034
+#define	SVM_EXIT_WRITE_DR5 	0x035
+#define	SVM_EXIT_WRITE_DR6 	0x036
+#define	SVM_EXIT_WRITE_DR7 	0x037
+#define SVM_EXIT_EXCP_BASE      0x040
+#define SVM_EXIT_INTR		0x060
+#define SVM_EXIT_NMI		0x061
+#define SVM_EXIT_SMI		0x062
+#define SVM_EXIT_INIT		0x063
+#define SVM_EXIT_VINTR		0x064
+#define SVM_EXIT_CR0_SEL_WRITE	0x065
+#define SVM_EXIT_IDTR_READ	0x066
+#define SVM_EXIT_GDTR_READ	0x067
+#define SVM_EXIT_LDTR_READ	0x068
+#define SVM_EXIT_TR_READ	0x069
+#define SVM_EXIT_IDTR_WRITE	0x06a
+#define SVM_EXIT_GDTR_WRITE	0x06b
+#define SVM_EXIT_LDTR_WRITE	0x06c
+#define SVM_EXIT_TR_WRITE	0x06d
+#define SVM_EXIT_RDTSC		0x06e
+#define SVM_EXIT_RDPMC		0x06f
+#define SVM_EXIT_PUSHF		0x070
+#define SVM_EXIT_POPF		0x071
+#define SVM_EXIT_CPUID		0x072
+#define SVM_EXIT_RSM		0x073
+#define SVM_EXIT_IRET		0x074
+#define SVM_EXIT_SWINT		0x075
+#define SVM_EXIT_INVD		0x076
+#define SVM_EXIT_PAUSE		0x077
+#define SVM_EXIT_HLT		0x078
+#define SVM_EXIT_INVLPG		0x079
+#define SVM_EXIT_INVLPGA	0x07a
+#define SVM_EXIT_IOIO		0x07b
+#define SVM_EXIT_MSR		0x07c
+#define SVM_EXIT_TASK_SWITCH	0x07d
+#define SVM_EXIT_FERR_FREEZE	0x07e
+#define SVM_EXIT_SHUTDOWN	0x07f
+#define SVM_EXIT_VMRUN		0x080
+#define SVM_EXIT_VMMCALL	0x081
+#define SVM_EXIT_VMLOAD		0x082
+#define SVM_EXIT_VMSAVE		0x083
+#define SVM_EXIT_STGI		0x084
+#define SVM_EXIT_CLGI		0x085
+#define SVM_EXIT_SKINIT		0x086
+#define SVM_EXIT_RDTSCP		0x087
+#define SVM_EXIT_ICEBP		0x088
+#define SVM_EXIT_WBINVD		0x089
+#define SVM_EXIT_MONITOR	0x08a
+#define SVM_EXIT_MWAIT		0x08b
+#define SVM_EXIT_MWAIT_COND	0x08c
+#define SVM_EXIT_NPF  		0x400
+
+#define SVM_EXIT_ERR		-1
+
+#define SVM_CR0_SELECTIVE_MASK (1 << 3 | 1) /* TS and MP */
+
+#define SVM_VMLOAD ".byte 0x0f, 0x01, 0xda"
+#define SVM_VMRUN  ".byte 0x0f, 0x01, 0xd8"
+#define SVM_VMSAVE ".byte 0x0f, 0x01, 0xdb"
+#define SVM_CLGI   ".byte 0x0f, 0x01, 0xdd"
+#define SVM_STGI   ".byte 0x0f, 0x01, 0xdc"
+#define SVM_INVLPGA ".byte 0x0f, 0x01, 0xdf"
+
+#endif
+
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
new file mode 100644
index 000000000000..fc494aff5d8b
--- /dev/null
+++ b/arch/x86/kvm/vmx.c
@@ -0,0 +1,2671 @@
+/*
+ * Kernel-based Virtual Machine driver for Linux
+ *
+ * This module enables machines with Intel VT-x extensions to run virtual
+ * machines without emulation or binary translation.
+ *
+ * Copyright (C) 2006 Qumranet, Inc.
+ *
+ * Authors:
+ *   Avi Kivity   <avi@qumranet.com>
+ *   Yaniv Kamay  <yaniv@qumranet.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include "irq.h"
+#include "vmx.h"
+#include "segment_descriptor.h"
+#include "mmu.h"
+
+#include <linux/kvm_host.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/highmem.h>
+#include <linux/sched.h>
+#include <linux/moduleparam.h>
+
+#include <asm/io.h>
+#include <asm/desc.h>
+
+MODULE_AUTHOR("Qumranet");
+MODULE_LICENSE("GPL");
+
+static int bypass_guest_pf = 1;
+module_param(bypass_guest_pf, bool, 0);
+
+struct vmcs {
+	u32 revision_id;
+	u32 abort;
+	char data[0];
+};
+
+struct vcpu_vmx {
+	struct kvm_vcpu       vcpu;
+	int                   launched;
+	u8                    fail;
+	u32                   idt_vectoring_info;
+	struct kvm_msr_entry *guest_msrs;
+	struct kvm_msr_entry *host_msrs;
+	int                   nmsrs;
+	int                   save_nmsrs;
+	int                   msr_offset_efer;
+#ifdef CONFIG_X86_64
+	int                   msr_offset_kernel_gs_base;
+#endif
+	struct vmcs          *vmcs;
+	struct {
+		int           loaded;
+		u16           fs_sel, gs_sel, ldt_sel;
+		int           gs_ldt_reload_needed;
+		int           fs_reload_needed;
+		int           guest_efer_loaded;
+	} host_state;
+	struct {
+		struct {
+			bool pending;
+			u8 vector;
+			unsigned rip;
+		} irq;
+	} rmode;
+};
+
+static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu)
+{
+	return container_of(vcpu, struct vcpu_vmx, vcpu);
+}
+
+static int init_rmode_tss(struct kvm *kvm);
+
+static DEFINE_PER_CPU(struct vmcs *, vmxarea);
+static DEFINE_PER_CPU(struct vmcs *, current_vmcs);
+
+static struct page *vmx_io_bitmap_a;
+static struct page *vmx_io_bitmap_b;
+
+static struct vmcs_config {
+	int size;
+	int order;
+	u32 revision_id;
+	u32 pin_based_exec_ctrl;
+	u32 cpu_based_exec_ctrl;
+	u32 cpu_based_2nd_exec_ctrl;
+	u32 vmexit_ctrl;
+	u32 vmentry_ctrl;
+} vmcs_config;
+
+#define VMX_SEGMENT_FIELD(seg)					\
+	[VCPU_SREG_##seg] = {                                   \
+		.selector = GUEST_##seg##_SELECTOR,		\
+		.base = GUEST_##seg##_BASE,		   	\
+		.limit = GUEST_##seg##_LIMIT,		   	\
+		.ar_bytes = GUEST_##seg##_AR_BYTES,	   	\
+	}
+
+static struct kvm_vmx_segment_field {
+	unsigned selector;
+	unsigned base;
+	unsigned limit;
+	unsigned ar_bytes;
+} kvm_vmx_segment_fields[] = {
+	VMX_SEGMENT_FIELD(CS),
+	VMX_SEGMENT_FIELD(DS),
+	VMX_SEGMENT_FIELD(ES),
+	VMX_SEGMENT_FIELD(FS),
+	VMX_SEGMENT_FIELD(GS),
+	VMX_SEGMENT_FIELD(SS),
+	VMX_SEGMENT_FIELD(TR),
+	VMX_SEGMENT_FIELD(LDTR),
+};
+
+/*
+ * Keep MSR_K6_STAR at the end, as setup_msrs() will try to optimize it
+ * away by decrementing the array size.
+ */
+static const u32 vmx_msr_index[] = {
+#ifdef CONFIG_X86_64
+	MSR_SYSCALL_MASK, MSR_LSTAR, MSR_CSTAR, MSR_KERNEL_GS_BASE,
+#endif
+	MSR_EFER, MSR_K6_STAR,
+};
+#define NR_VMX_MSR ARRAY_SIZE(vmx_msr_index)
+
+static void load_msrs(struct kvm_msr_entry *e, int n)
+{
+	int i;
+
+	for (i = 0; i < n; ++i)
+		wrmsrl(e[i].index, e[i].data);
+}
+
+static void save_msrs(struct kvm_msr_entry *e, int n)
+{
+	int i;
+
+	for (i = 0; i < n; ++i)
+		rdmsrl(e[i].index, e[i].data);
+}
+
+static inline int is_page_fault(u32 intr_info)
+{
+	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK |
+			     INTR_INFO_VALID_MASK)) ==
+		(INTR_TYPE_EXCEPTION | PF_VECTOR | INTR_INFO_VALID_MASK);
+}
+
+static inline int is_no_device(u32 intr_info)
+{
+	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK |
+			     INTR_INFO_VALID_MASK)) ==
+		(INTR_TYPE_EXCEPTION | NM_VECTOR | INTR_INFO_VALID_MASK);
+}
+
+static inline int is_invalid_opcode(u32 intr_info)
+{
+	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK |
+			     INTR_INFO_VALID_MASK)) ==
+		(INTR_TYPE_EXCEPTION | UD_VECTOR | INTR_INFO_VALID_MASK);
+}
+
+static inline int is_external_interrupt(u32 intr_info)
+{
+	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VALID_MASK))
+		== (INTR_TYPE_EXT_INTR | INTR_INFO_VALID_MASK);
+}
+
+static inline int cpu_has_vmx_tpr_shadow(void)
+{
+	return (vmcs_config.cpu_based_exec_ctrl & CPU_BASED_TPR_SHADOW);
+}
+
+static inline int vm_need_tpr_shadow(struct kvm *kvm)
+{
+	return ((cpu_has_vmx_tpr_shadow()) && (irqchip_in_kernel(kvm)));
+}
+
+static inline int cpu_has_secondary_exec_ctrls(void)
+{
+	return (vmcs_config.cpu_based_exec_ctrl &
+		CPU_BASED_ACTIVATE_SECONDARY_CONTROLS);
+}
+
+static inline int cpu_has_vmx_virtualize_apic_accesses(void)
+{
+	return (vmcs_config.cpu_based_2nd_exec_ctrl &
+		SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES);
+}
+
+static inline int vm_need_virtualize_apic_accesses(struct kvm *kvm)
+{
+	return ((cpu_has_vmx_virtualize_apic_accesses()) &&
+		(irqchip_in_kernel(kvm)));
+}
+
+static int __find_msr_index(struct vcpu_vmx *vmx, u32 msr)
+{
+	int i;
+
+	for (i = 0; i < vmx->nmsrs; ++i)
+		if (vmx->guest_msrs[i].index == msr)
+			return i;
+	return -1;
+}
+
+static struct kvm_msr_entry *find_msr_entry(struct vcpu_vmx *vmx, u32 msr)
+{
+	int i;
+
+	i = __find_msr_index(vmx, msr);
+	if (i >= 0)
+		return &vmx->guest_msrs[i];
+	return NULL;
+}
+
+static void vmcs_clear(struct vmcs *vmcs)
+{
+	u64 phys_addr = __pa(vmcs);
+	u8 error;
+
+	asm volatile (ASM_VMX_VMCLEAR_RAX "; setna %0"
+		      : "=g"(error) : "a"(&phys_addr), "m"(phys_addr)
+		      : "cc", "memory");
+	if (error)
+		printk(KERN_ERR "kvm: vmclear fail: %p/%llx\n",
+		       vmcs, phys_addr);
+}
+
+static void __vcpu_clear(void *arg)
+{
+	struct vcpu_vmx *vmx = arg;
+	int cpu = raw_smp_processor_id();
+
+	if (vmx->vcpu.cpu == cpu)
+		vmcs_clear(vmx->vmcs);
+	if (per_cpu(current_vmcs, cpu) == vmx->vmcs)
+		per_cpu(current_vmcs, cpu) = NULL;
+	rdtscll(vmx->vcpu.arch.host_tsc);
+}
+
+static void vcpu_clear(struct vcpu_vmx *vmx)
+{
+	if (vmx->vcpu.cpu == -1)
+		return;
+	smp_call_function_single(vmx->vcpu.cpu, __vcpu_clear, vmx, 0, 1);
+	vmx->launched = 0;
+}
+
+static unsigned long vmcs_readl(unsigned long field)
+{
+	unsigned long value;
+
+	asm volatile (ASM_VMX_VMREAD_RDX_RAX
+		      : "=a"(value) : "d"(field) : "cc");
+	return value;
+}
+
+static u16 vmcs_read16(unsigned long field)
+{
+	return vmcs_readl(field);
+}
+
+static u32 vmcs_read32(unsigned long field)
+{
+	return vmcs_readl(field);
+}
+
+static u64 vmcs_read64(unsigned long field)
+{
+#ifdef CONFIG_X86_64
+	return vmcs_readl(field);
+#else
+	return vmcs_readl(field) | ((u64)vmcs_readl(field+1) << 32);
+#endif
+}
+
+static noinline void vmwrite_error(unsigned long field, unsigned long value)
+{
+	printk(KERN_ERR "vmwrite error: reg %lx value %lx (err %d)\n",
+	       field, value, vmcs_read32(VM_INSTRUCTION_ERROR));
+	dump_stack();
+}
+
+static void vmcs_writel(unsigned long field, unsigned long value)
+{
+	u8 error;
+
+	asm volatile (ASM_VMX_VMWRITE_RAX_RDX "; setna %0"
+		       : "=q"(error) : "a"(value), "d"(field) : "cc");
+	if (unlikely(error))
+		vmwrite_error(field, value);
+}
+
+static void vmcs_write16(unsigned long field, u16 value)
+{
+	vmcs_writel(field, value);
+}
+
+static void vmcs_write32(unsigned long field, u32 value)
+{
+	vmcs_writel(field, value);
+}
+
+static void vmcs_write64(unsigned long field, u64 value)
+{
+#ifdef CONFIG_X86_64
+	vmcs_writel(field, value);
+#else
+	vmcs_writel(field, value);
+	asm volatile ("");
+	vmcs_writel(field+1, value >> 32);
+#endif
+}
+
+static void vmcs_clear_bits(unsigned long field, u32 mask)
+{
+	vmcs_writel(field, vmcs_readl(field) & ~mask);
+}
+
+static void vmcs_set_bits(unsigned long field, u32 mask)
+{
+	vmcs_writel(field, vmcs_readl(field) | mask);
+}
+
+static void update_exception_bitmap(struct kvm_vcpu *vcpu)
+{
+	u32 eb;
+
+	eb = (1u << PF_VECTOR) | (1u << UD_VECTOR);
+	if (!vcpu->fpu_active)
+		eb |= 1u << NM_VECTOR;
+	if (vcpu->guest_debug.enabled)
+		eb |= 1u << 1;
+	if (vcpu->arch.rmode.active)
+		eb = ~0;
+	vmcs_write32(EXCEPTION_BITMAP, eb);
+}
+
+static void reload_tss(void)
+{
+#ifndef CONFIG_X86_64
+
+	/*
+	 * VT restores TR but not its size.  Useless.
+	 */
+	struct descriptor_table gdt;
+	struct segment_descriptor *descs;
+
+	get_gdt(&gdt);
+	descs = (void *)gdt.base;
+	descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
+	load_TR_desc();
+#endif
+}
+
+static void load_transition_efer(struct vcpu_vmx *vmx)
+{
+	int efer_offset = vmx->msr_offset_efer;
+	u64 host_efer = vmx->host_msrs[efer_offset].data;
+	u64 guest_efer = vmx->guest_msrs[efer_offset].data;
+	u64 ignore_bits;
+
+	if (efer_offset < 0)
+		return;
+	/*
+	 * NX is emulated; LMA and LME handled by hardware; SCE meaninless
+	 * outside long mode
+	 */
+	ignore_bits = EFER_NX | EFER_SCE;
+#ifdef CONFIG_X86_64
+	ignore_bits |= EFER_LMA | EFER_LME;
+	/* SCE is meaningful only in long mode on Intel */
+	if (guest_efer & EFER_LMA)
+		ignore_bits &= ~(u64)EFER_SCE;
+#endif
+	if ((guest_efer & ~ignore_bits) == (host_efer & ~ignore_bits))
+		return;
+
+	vmx->host_state.guest_efer_loaded = 1;
+	guest_efer &= ~ignore_bits;
+	guest_efer |= host_efer & ignore_bits;
+	wrmsrl(MSR_EFER, guest_efer);
+	vmx->vcpu.stat.efer_reload++;
+}
+
+static void reload_host_efer(struct vcpu_vmx *vmx)
+{
+	if (vmx->host_state.guest_efer_loaded) {
+		vmx->host_state.guest_efer_loaded = 0;
+		load_msrs(vmx->host_msrs + vmx->msr_offset_efer, 1);
+	}
+}
+
+static void vmx_save_host_state(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+
+	if (vmx->host_state.loaded)
+		return;
+
+	vmx->host_state.loaded = 1;
+	/*
+	 * Set host fs and gs selectors.  Unfortunately, 22.2.3 does not
+	 * allow segment selectors with cpl > 0 or ti == 1.
+	 */
+	vmx->host_state.ldt_sel = read_ldt();
+	vmx->host_state.gs_ldt_reload_needed = vmx->host_state.ldt_sel;
+	vmx->host_state.fs_sel = read_fs();
+	if (!(vmx->host_state.fs_sel & 7)) {
+		vmcs_write16(HOST_FS_SELECTOR, vmx->host_state.fs_sel);
+		vmx->host_state.fs_reload_needed = 0;
+	} else {
+		vmcs_write16(HOST_FS_SELECTOR, 0);
+		vmx->host_state.fs_reload_needed = 1;
+	}
+	vmx->host_state.gs_sel = read_gs();
+	if (!(vmx->host_state.gs_sel & 7))
+		vmcs_write16(HOST_GS_SELECTOR, vmx->host_state.gs_sel);
+	else {
+		vmcs_write16(HOST_GS_SELECTOR, 0);
+		vmx->host_state.gs_ldt_reload_needed = 1;
+	}
+
+#ifdef CONFIG_X86_64
+	vmcs_writel(HOST_FS_BASE, read_msr(MSR_FS_BASE));
+	vmcs_writel(HOST_GS_BASE, read_msr(MSR_GS_BASE));
+#else
+	vmcs_writel(HOST_FS_BASE, segment_base(vmx->host_state.fs_sel));
+	vmcs_writel(HOST_GS_BASE, segment_base(vmx->host_state.gs_sel));
+#endif
+
+#ifdef CONFIG_X86_64
+	if (is_long_mode(&vmx->vcpu))
+		save_msrs(vmx->host_msrs +
+			  vmx->msr_offset_kernel_gs_base, 1);
+
+#endif
+	load_msrs(vmx->guest_msrs, vmx->save_nmsrs);
+	load_transition_efer(vmx);
+}
+
+static void vmx_load_host_state(struct vcpu_vmx *vmx)
+{
+	unsigned long flags;
+
+	if (!vmx->host_state.loaded)
+		return;
+
+	++vmx->vcpu.stat.host_state_reload;
+	vmx->host_state.loaded = 0;
+	if (vmx->host_state.fs_reload_needed)
+		load_fs(vmx->host_state.fs_sel);
+	if (vmx->host_state.gs_ldt_reload_needed) {
+		load_ldt(vmx->host_state.ldt_sel);
+		/*
+		 * If we have to reload gs, we must take care to
+		 * preserve our gs base.
+		 */
+		local_irq_save(flags);
+		load_gs(vmx->host_state.gs_sel);
+#ifdef CONFIG_X86_64
+		wrmsrl(MSR_GS_BASE, vmcs_readl(HOST_GS_BASE));
+#endif
+		local_irq_restore(flags);
+	}
+	reload_tss();
+	save_msrs(vmx->guest_msrs, vmx->save_nmsrs);
+	load_msrs(vmx->host_msrs, vmx->save_nmsrs);
+	reload_host_efer(vmx);
+}
+
+/*
+ * Switches to specified vcpu, until a matching vcpu_put(), but assumes
+ * vcpu mutex is already taken.
+ */
+static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	u64 phys_addr = __pa(vmx->vmcs);
+	u64 tsc_this, delta;
+
+	if (vcpu->cpu != cpu) {
+		vcpu_clear(vmx);
+		kvm_migrate_apic_timer(vcpu);
+	}
+
+	if (per_cpu(current_vmcs, cpu) != vmx->vmcs) {
+		u8 error;
+
+		per_cpu(current_vmcs, cpu) = vmx->vmcs;
+		asm volatile (ASM_VMX_VMPTRLD_RAX "; setna %0"
+			      : "=g"(error) : "a"(&phys_addr), "m"(phys_addr)
+			      : "cc");
+		if (error)
+			printk(KERN_ERR "kvm: vmptrld %p/%llx fail\n",
+			       vmx->vmcs, phys_addr);
+	}
+
+	if (vcpu->cpu != cpu) {
+		struct descriptor_table dt;
+		unsigned long sysenter_esp;
+
+		vcpu->cpu = cpu;
+		/*
+		 * Linux uses per-cpu TSS and GDT, so set these when switching
+		 * processors.
+		 */
+		vmcs_writel(HOST_TR_BASE, read_tr_base()); /* 22.2.4 */
+		get_gdt(&dt);
+		vmcs_writel(HOST_GDTR_BASE, dt.base);   /* 22.2.4 */
+
+		rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp);
+		vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */
+
+		/*
+		 * Make sure the time stamp counter is monotonous.
+		 */
+		rdtscll(tsc_this);
+		delta = vcpu->arch.host_tsc - tsc_this;
+		vmcs_write64(TSC_OFFSET, vmcs_read64(TSC_OFFSET) + delta);
+	}
+}
+
+static void vmx_vcpu_put(struct kvm_vcpu *vcpu)
+{
+	vmx_load_host_state(to_vmx(vcpu));
+}
+
+static void vmx_fpu_activate(struct kvm_vcpu *vcpu)
+{
+	if (vcpu->fpu_active)
+		return;
+	vcpu->fpu_active = 1;
+	vmcs_clear_bits(GUEST_CR0, X86_CR0_TS);
+	if (vcpu->arch.cr0 & X86_CR0_TS)
+		vmcs_set_bits(GUEST_CR0, X86_CR0_TS);
+	update_exception_bitmap(vcpu);
+}
+
+static void vmx_fpu_deactivate(struct kvm_vcpu *vcpu)
+{
+	if (!vcpu->fpu_active)
+		return;
+	vcpu->fpu_active = 0;
+	vmcs_set_bits(GUEST_CR0, X86_CR0_TS);
+	update_exception_bitmap(vcpu);
+}
+
+static void vmx_vcpu_decache(struct kvm_vcpu *vcpu)
+{
+	vcpu_clear(to_vmx(vcpu));
+}
+
+static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
+{
+	return vmcs_readl(GUEST_RFLAGS);
+}
+
+static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
+{
+	if (vcpu->arch.rmode.active)
+		rflags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;
+	vmcs_writel(GUEST_RFLAGS, rflags);
+}
+
+static void skip_emulated_instruction(struct kvm_vcpu *vcpu)
+{
+	unsigned long rip;
+	u32 interruptibility;
+
+	rip = vmcs_readl(GUEST_RIP);
+	rip += vmcs_read32(VM_EXIT_INSTRUCTION_LEN);
+	vmcs_writel(GUEST_RIP, rip);
+
+	/*
+	 * We emulated an instruction, so temporary interrupt blocking
+	 * should be removed, if set.
+	 */
+	interruptibility = vmcs_read32(GUEST_INTERRUPTIBILITY_INFO);
+	if (interruptibility & 3)
+		vmcs_write32(GUEST_INTERRUPTIBILITY_INFO,
+			     interruptibility & ~3);
+	vcpu->arch.interrupt_window_open = 1;
+}
+
+static void vmx_queue_exception(struct kvm_vcpu *vcpu, unsigned nr,
+				bool has_error_code, u32 error_code)
+{
+	vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,
+		     nr | INTR_TYPE_EXCEPTION
+		     | (has_error_code ? INTR_INFO_DELIEVER_CODE_MASK : 0)
+		     | INTR_INFO_VALID_MASK);
+	if (has_error_code)
+		vmcs_write32(VM_ENTRY_EXCEPTION_ERROR_CODE, error_code);
+}
+
+static bool vmx_exception_injected(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+
+	return !(vmx->idt_vectoring_info & VECTORING_INFO_VALID_MASK);
+}
+
+/*
+ * Swap MSR entry in host/guest MSR entry array.
+ */
+#ifdef CONFIG_X86_64
+static void move_msr_up(struct vcpu_vmx *vmx, int from, int to)
+{
+	struct kvm_msr_entry tmp;
+
+	tmp = vmx->guest_msrs[to];
+	vmx->guest_msrs[to] = vmx->guest_msrs[from];
+	vmx->guest_msrs[from] = tmp;
+	tmp = vmx->host_msrs[to];
+	vmx->host_msrs[to] = vmx->host_msrs[from];
+	vmx->host_msrs[from] = tmp;
+}
+#endif
+
+/*
+ * Set up the vmcs to automatically save and restore system
+ * msrs.  Don't touch the 64-bit msrs if the guest is in legacy
+ * mode, as fiddling with msrs is very expensive.
+ */
+static void setup_msrs(struct vcpu_vmx *vmx)
+{
+	int save_nmsrs;
+
+	save_nmsrs = 0;
+#ifdef CONFIG_X86_64
+	if (is_long_mode(&vmx->vcpu)) {
+		int index;
+
+		index = __find_msr_index(vmx, MSR_SYSCALL_MASK);
+		if (index >= 0)
+			move_msr_up(vmx, index, save_nmsrs++);
+		index = __find_msr_index(vmx, MSR_LSTAR);
+		if (index >= 0)
+			move_msr_up(vmx, index, save_nmsrs++);
+		index = __find_msr_index(vmx, MSR_CSTAR);
+		if (index >= 0)
+			move_msr_up(vmx, index, save_nmsrs++);
+		index = __find_msr_index(vmx, MSR_KERNEL_GS_BASE);
+		if (index >= 0)
+			move_msr_up(vmx, index, save_nmsrs++);
+		/*
+		 * MSR_K6_STAR is only needed on long mode guests, and only
+		 * if efer.sce is enabled.
+		 */
+		index = __find_msr_index(vmx, MSR_K6_STAR);
+		if ((index >= 0) && (vmx->vcpu.arch.shadow_efer & EFER_SCE))
+			move_msr_up(vmx, index, save_nmsrs++);
+	}
+#endif
+	vmx->save_nmsrs = save_nmsrs;
+
+#ifdef CONFIG_X86_64
+	vmx->msr_offset_kernel_gs_base =
+		__find_msr_index(vmx, MSR_KERNEL_GS_BASE);
+#endif
+	vmx->msr_offset_efer = __find_msr_index(vmx, MSR_EFER);
+}
+
+/*
+ * reads and returns guest's timestamp counter "register"
+ * guest_tsc = host_tsc + tsc_offset    -- 21.3
+ */
+static u64 guest_read_tsc(void)
+{
+	u64 host_tsc, tsc_offset;
+
+	rdtscll(host_tsc);
+	tsc_offset = vmcs_read64(TSC_OFFSET);
+	return host_tsc + tsc_offset;
+}
+
+/*
+ * writes 'guest_tsc' into guest's timestamp counter "register"
+ * guest_tsc = host_tsc + tsc_offset ==> tsc_offset = guest_tsc - host_tsc
+ */
+static void guest_write_tsc(u64 guest_tsc)
+{
+	u64 host_tsc;
+
+	rdtscll(host_tsc);
+	vmcs_write64(TSC_OFFSET, guest_tsc - host_tsc);
+}
+
+/*
+ * Reads an msr value (of 'msr_index') into 'pdata'.
+ * Returns 0 on success, non-0 otherwise.
+ * Assumes vcpu_load() was already called.
+ */
+static int vmx_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
+{
+	u64 data;
+	struct kvm_msr_entry *msr;
+
+	if (!pdata) {
+		printk(KERN_ERR "BUG: get_msr called with NULL pdata\n");
+		return -EINVAL;
+	}
+
+	switch (msr_index) {
+#ifdef CONFIG_X86_64
+	case MSR_FS_BASE:
+		data = vmcs_readl(GUEST_FS_BASE);
+		break;
+	case MSR_GS_BASE:
+		data = vmcs_readl(GUEST_GS_BASE);
+		break;
+	case MSR_EFER:
+		return kvm_get_msr_common(vcpu, msr_index, pdata);
+#endif
+	case MSR_IA32_TIME_STAMP_COUNTER:
+		data = guest_read_tsc();
+		break;
+	case MSR_IA32_SYSENTER_CS:
+		data = vmcs_read32(GUEST_SYSENTER_CS);
+		break;
+	case MSR_IA32_SYSENTER_EIP:
+		data = vmcs_readl(GUEST_SYSENTER_EIP);
+		break;
+	case MSR_IA32_SYSENTER_ESP:
+		data = vmcs_readl(GUEST_SYSENTER_ESP);
+		break;
+	default:
+		msr = find_msr_entry(to_vmx(vcpu), msr_index);
+		if (msr) {
+			data = msr->data;
+			break;
+		}
+		return kvm_get_msr_common(vcpu, msr_index, pdata);
+	}
+
+	*pdata = data;
+	return 0;
+}
+
+/*
+ * Writes msr value into into the appropriate "register".
+ * Returns 0 on success, non-0 otherwise.
+ * Assumes vcpu_load() was already called.
+ */
+static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	struct kvm_msr_entry *msr;
+	int ret = 0;
+
+	switch (msr_index) {
+#ifdef CONFIG_X86_64
+	case MSR_EFER:
+		ret = kvm_set_msr_common(vcpu, msr_index, data);
+		if (vmx->host_state.loaded) {
+			reload_host_efer(vmx);
+			load_transition_efer(vmx);
+		}
+		break;
+	case MSR_FS_BASE:
+		vmcs_writel(GUEST_FS_BASE, data);
+		break;
+	case MSR_GS_BASE:
+		vmcs_writel(GUEST_GS_BASE, data);
+		break;
+#endif
+	case MSR_IA32_SYSENTER_CS:
+		vmcs_write32(GUEST_SYSENTER_CS, data);
+		break;
+	case MSR_IA32_SYSENTER_EIP:
+		vmcs_writel(GUEST_SYSENTER_EIP, data);
+		break;
+	case MSR_IA32_SYSENTER_ESP:
+		vmcs_writel(GUEST_SYSENTER_ESP, data);
+		break;
+	case MSR_IA32_TIME_STAMP_COUNTER:
+		guest_write_tsc(data);
+		break;
+	default:
+		msr = find_msr_entry(vmx, msr_index);
+		if (msr) {
+			msr->data = data;
+			if (vmx->host_state.loaded)
+				load_msrs(vmx->guest_msrs, vmx->save_nmsrs);
+			break;
+		}
+		ret = kvm_set_msr_common(vcpu, msr_index, data);
+	}
+
+	return ret;
+}
+
+/*
+ * Sync the rsp and rip registers into the vcpu structure.  This allows
+ * registers to be accessed by indexing vcpu->arch.regs.
+ */
+static void vcpu_load_rsp_rip(struct kvm_vcpu *vcpu)
+{
+	vcpu->arch.regs[VCPU_REGS_RSP] = vmcs_readl(GUEST_RSP);
+	vcpu->arch.rip = vmcs_readl(GUEST_RIP);
+}
+
+/*
+ * Syncs rsp and rip back into the vmcs.  Should be called after possible
+ * modification.
+ */
+static void vcpu_put_rsp_rip(struct kvm_vcpu *vcpu)
+{
+	vmcs_writel(GUEST_RSP, vcpu->arch.regs[VCPU_REGS_RSP]);
+	vmcs_writel(GUEST_RIP, vcpu->arch.rip);
+}
+
+static int set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_debug_guest *dbg)
+{
+	unsigned long dr7 = 0x400;
+	int old_singlestep;
+
+	old_singlestep = vcpu->guest_debug.singlestep;
+
+	vcpu->guest_debug.enabled = dbg->enabled;
+	if (vcpu->guest_debug.enabled) {
+		int i;
+
+		dr7 |= 0x200;  /* exact */
+		for (i = 0; i < 4; ++i) {
+			if (!dbg->breakpoints[i].enabled)
+				continue;
+			vcpu->guest_debug.bp[i] = dbg->breakpoints[i].address;
+			dr7 |= 2 << (i*2);    /* global enable */
+			dr7 |= 0 << (i*4+16); /* execution breakpoint */
+		}
+
+		vcpu->guest_debug.singlestep = dbg->singlestep;
+	} else
+		vcpu->guest_debug.singlestep = 0;
+
+	if (old_singlestep && !vcpu->guest_debug.singlestep) {
+		unsigned long flags;
+
+		flags = vmcs_readl(GUEST_RFLAGS);
+		flags &= ~(X86_EFLAGS_TF | X86_EFLAGS_RF);
+		vmcs_writel(GUEST_RFLAGS, flags);
+	}
+
+	update_exception_bitmap(vcpu);
+	vmcs_writel(GUEST_DR7, dr7);
+
+	return 0;
+}
+
+static int vmx_get_irq(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	u32 idtv_info_field;
+
+	idtv_info_field = vmx->idt_vectoring_info;
+	if (idtv_info_field & INTR_INFO_VALID_MASK) {
+		if (is_external_interrupt(idtv_info_field))
+			return idtv_info_field & VECTORING_INFO_VECTOR_MASK;
+		else
+			printk(KERN_DEBUG "pending exception: not handled yet\n");
+	}
+	return -1;
+}
+
+static __init int cpu_has_kvm_support(void)
+{
+	unsigned long ecx = cpuid_ecx(1);
+	return test_bit(5, &ecx); /* CPUID.1:ECX.VMX[bit 5] -> VT */
+}
+
+static __init int vmx_disabled_by_bios(void)
+{
+	u64 msr;
+
+	rdmsrl(MSR_IA32_FEATURE_CONTROL, msr);
+	return (msr & (MSR_IA32_FEATURE_CONTROL_LOCKED |
+		       MSR_IA32_FEATURE_CONTROL_VMXON_ENABLED))
+	    == MSR_IA32_FEATURE_CONTROL_LOCKED;
+	/* locked but not enabled */
+}
+
+static void hardware_enable(void *garbage)
+{
+	int cpu = raw_smp_processor_id();
+	u64 phys_addr = __pa(per_cpu(vmxarea, cpu));
+	u64 old;
+
+	rdmsrl(MSR_IA32_FEATURE_CONTROL, old);
+	if ((old & (MSR_IA32_FEATURE_CONTROL_LOCKED |
+		    MSR_IA32_FEATURE_CONTROL_VMXON_ENABLED))
+	    != (MSR_IA32_FEATURE_CONTROL_LOCKED |
+		MSR_IA32_FEATURE_CONTROL_VMXON_ENABLED))
+		/* enable and lock */
+		wrmsrl(MSR_IA32_FEATURE_CONTROL, old |
+		       MSR_IA32_FEATURE_CONTROL_LOCKED |
+		       MSR_IA32_FEATURE_CONTROL_VMXON_ENABLED);
+	write_cr4(read_cr4() | X86_CR4_VMXE); /* FIXME: not cpu hotplug safe */
+	asm volatile (ASM_VMX_VMXON_RAX : : "a"(&phys_addr), "m"(phys_addr)
+		      : "memory", "cc");
+}
+
+static void hardware_disable(void *garbage)
+{
+	asm volatile (ASM_VMX_VMXOFF : : : "cc");
+}
+
+static __init int adjust_vmx_controls(u32 ctl_min, u32 ctl_opt,
+				      u32 msr, u32 *result)
+{
+	u32 vmx_msr_low, vmx_msr_high;
+	u32 ctl = ctl_min | ctl_opt;
+
+	rdmsr(msr, vmx_msr_low, vmx_msr_high);
+
+	ctl &= vmx_msr_high; /* bit == 0 in high word ==> must be zero */
+	ctl |= vmx_msr_low;  /* bit == 1 in low word  ==> must be one  */
+
+	/* Ensure minimum (required) set of control bits are supported. */
+	if (ctl_min & ~ctl)
+		return -EIO;
+
+	*result = ctl;
+	return 0;
+}
+
+static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
+{
+	u32 vmx_msr_low, vmx_msr_high;
+	u32 min, opt;
+	u32 _pin_based_exec_control = 0;
+	u32 _cpu_based_exec_control = 0;
+	u32 _cpu_based_2nd_exec_control = 0;
+	u32 _vmexit_control = 0;
+	u32 _vmentry_control = 0;
+
+	min = PIN_BASED_EXT_INTR_MASK | PIN_BASED_NMI_EXITING;
+	opt = 0;
+	if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_PINBASED_CTLS,
+				&_pin_based_exec_control) < 0)
+		return -EIO;
+
+	min = CPU_BASED_HLT_EXITING |
+#ifdef CONFIG_X86_64
+	      CPU_BASED_CR8_LOAD_EXITING |
+	      CPU_BASED_CR8_STORE_EXITING |
+#endif
+	      CPU_BASED_USE_IO_BITMAPS |
+	      CPU_BASED_MOV_DR_EXITING |
+	      CPU_BASED_USE_TSC_OFFSETING;
+	opt = CPU_BASED_TPR_SHADOW |
+	      CPU_BASED_ACTIVATE_SECONDARY_CONTROLS;
+	if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_PROCBASED_CTLS,
+				&_cpu_based_exec_control) < 0)
+		return -EIO;
+#ifdef CONFIG_X86_64
+	if ((_cpu_based_exec_control & CPU_BASED_TPR_SHADOW))
+		_cpu_based_exec_control &= ~CPU_BASED_CR8_LOAD_EXITING &
+					   ~CPU_BASED_CR8_STORE_EXITING;
+#endif
+	if (_cpu_based_exec_control & CPU_BASED_ACTIVATE_SECONDARY_CONTROLS) {
+		min = 0;
+		opt = SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
+			SECONDARY_EXEC_WBINVD_EXITING;
+		if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_PROCBASED_CTLS2,
+					&_cpu_based_2nd_exec_control) < 0)
+			return -EIO;
+	}
+#ifndef CONFIG_X86_64
+	if (!(_cpu_based_2nd_exec_control &
+				SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES))
+		_cpu_based_exec_control &= ~CPU_BASED_TPR_SHADOW;
+#endif
+
+	min = 0;
+#ifdef CONFIG_X86_64
+	min |= VM_EXIT_HOST_ADDR_SPACE_SIZE;
+#endif
+	opt = 0;
+	if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_EXIT_CTLS,
+				&_vmexit_control) < 0)
+		return -EIO;
+
+	min = opt = 0;
+	if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_ENTRY_CTLS,
+				&_vmentry_control) < 0)
+		return -EIO;
+
+	rdmsr(MSR_IA32_VMX_BASIC, vmx_msr_low, vmx_msr_high);
+
+	/* IA-32 SDM Vol 3B: VMCS size is never greater than 4kB. */
+	if ((vmx_msr_high & 0x1fff) > PAGE_SIZE)
+		return -EIO;
+
+#ifdef CONFIG_X86_64
+	/* IA-32 SDM Vol 3B: 64-bit CPUs always have VMX_BASIC_MSR[48]==0. */
+	if (vmx_msr_high & (1u<<16))
+		return -EIO;
+#endif
+
+	/* Require Write-Back (WB) memory type for VMCS accesses. */
+	if (((vmx_msr_high >> 18) & 15) != 6)
+		return -EIO;
+
+	vmcs_conf->size = vmx_msr_high & 0x1fff;
+	vmcs_conf->order = get_order(vmcs_config.size);
+	vmcs_conf->revision_id = vmx_msr_low;
+
+	vmcs_conf->pin_based_exec_ctrl = _pin_based_exec_control;
+	vmcs_conf->cpu_based_exec_ctrl = _cpu_based_exec_control;
+	vmcs_conf->cpu_based_2nd_exec_ctrl = _cpu_based_2nd_exec_control;
+	vmcs_conf->vmexit_ctrl         = _vmexit_control;
+	vmcs_conf->vmentry_ctrl        = _vmentry_control;
+
+	return 0;
+}
+
+static struct vmcs *alloc_vmcs_cpu(int cpu)
+{
+	int node = cpu_to_node(cpu);
+	struct page *pages;
+	struct vmcs *vmcs;
+
+	pages = alloc_pages_node(node, GFP_KERNEL, vmcs_config.order);
+	if (!pages)
+		return NULL;
+	vmcs = page_address(pages);
+	memset(vmcs, 0, vmcs_config.size);
+	vmcs->revision_id = vmcs_config.revision_id; /* vmcs revision id */
+	return vmcs;
+}
+
+static struct vmcs *alloc_vmcs(void)
+{
+	return alloc_vmcs_cpu(raw_smp_processor_id());
+}
+
+static void free_vmcs(struct vmcs *vmcs)
+{
+	free_pages((unsigned long)vmcs, vmcs_config.order);
+}
+
+static void free_kvm_area(void)
+{
+	int cpu;
+
+	for_each_online_cpu(cpu)
+		free_vmcs(per_cpu(vmxarea, cpu));
+}
+
+static __init int alloc_kvm_area(void)
+{
+	int cpu;
+
+	for_each_online_cpu(cpu) {
+		struct vmcs *vmcs;
+
+		vmcs = alloc_vmcs_cpu(cpu);
+		if (!vmcs) {
+			free_kvm_area();
+			return -ENOMEM;
+		}
+
+		per_cpu(vmxarea, cpu) = vmcs;
+	}
+	return 0;
+}
+
+static __init int hardware_setup(void)
+{
+	if (setup_vmcs_config(&vmcs_config) < 0)
+		return -EIO;
+	return alloc_kvm_area();
+}
+
+static __exit void hardware_unsetup(void)
+{
+	free_kvm_area();
+}
+
+static void fix_pmode_dataseg(int seg, struct kvm_save_segment *save)
+{
+	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
+
+	if (vmcs_readl(sf->base) == save->base && (save->base & AR_S_MASK)) {
+		vmcs_write16(sf->selector, save->selector);
+		vmcs_writel(sf->base, save->base);
+		vmcs_write32(sf->limit, save->limit);
+		vmcs_write32(sf->ar_bytes, save->ar);
+	} else {
+		u32 dpl = (vmcs_read16(sf->selector) & SELECTOR_RPL_MASK)
+			<< AR_DPL_SHIFT;
+		vmcs_write32(sf->ar_bytes, 0x93 | dpl);
+	}
+}
+
+static void enter_pmode(struct kvm_vcpu *vcpu)
+{
+	unsigned long flags;
+
+	vcpu->arch.rmode.active = 0;
+
+	vmcs_writel(GUEST_TR_BASE, vcpu->arch.rmode.tr.base);
+	vmcs_write32(GUEST_TR_LIMIT, vcpu->arch.rmode.tr.limit);
+	vmcs_write32(GUEST_TR_AR_BYTES, vcpu->arch.rmode.tr.ar);
+
+	flags = vmcs_readl(GUEST_RFLAGS);
+	flags &= ~(X86_EFLAGS_IOPL | X86_EFLAGS_VM);
+	flags |= (vcpu->arch.rmode.save_iopl << IOPL_SHIFT);
+	vmcs_writel(GUEST_RFLAGS, flags);
+
+	vmcs_writel(GUEST_CR4, (vmcs_readl(GUEST_CR4) & ~X86_CR4_VME) |
+			(vmcs_readl(CR4_READ_SHADOW) & X86_CR4_VME));
+
+	update_exception_bitmap(vcpu);
+
+	fix_pmode_dataseg(VCPU_SREG_ES, &vcpu->arch.rmode.es);
+	fix_pmode_dataseg(VCPU_SREG_DS, &vcpu->arch.rmode.ds);
+	fix_pmode_dataseg(VCPU_SREG_GS, &vcpu->arch.rmode.gs);
+	fix_pmode_dataseg(VCPU_SREG_FS, &vcpu->arch.rmode.fs);
+
+	vmcs_write16(GUEST_SS_SELECTOR, 0);
+	vmcs_write32(GUEST_SS_AR_BYTES, 0x93);
+
+	vmcs_write16(GUEST_CS_SELECTOR,
+		     vmcs_read16(GUEST_CS_SELECTOR) & ~SELECTOR_RPL_MASK);
+	vmcs_write32(GUEST_CS_AR_BYTES, 0x9b);
+}
+
+static gva_t rmode_tss_base(struct kvm *kvm)
+{
+	if (!kvm->arch.tss_addr) {
+		gfn_t base_gfn = kvm->memslots[0].base_gfn +
+				 kvm->memslots[0].npages - 3;
+		return base_gfn << PAGE_SHIFT;
+	}
+	return kvm->arch.tss_addr;
+}
+
+static void fix_rmode_seg(int seg, struct kvm_save_segment *save)
+{
+	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
+
+	save->selector = vmcs_read16(sf->selector);
+	save->base = vmcs_readl(sf->base);
+	save->limit = vmcs_read32(sf->limit);
+	save->ar = vmcs_read32(sf->ar_bytes);
+	vmcs_write16(sf->selector, save->base >> 4);
+	vmcs_write32(sf->base, save->base & 0xfffff);
+	vmcs_write32(sf->limit, 0xffff);
+	vmcs_write32(sf->ar_bytes, 0xf3);
+}
+
+static void enter_rmode(struct kvm_vcpu *vcpu)
+{
+	unsigned long flags;
+
+	vcpu->arch.rmode.active = 1;
+
+	vcpu->arch.rmode.tr.base = vmcs_readl(GUEST_TR_BASE);
+	vmcs_writel(GUEST_TR_BASE, rmode_tss_base(vcpu->kvm));
+
+	vcpu->arch.rmode.tr.limit = vmcs_read32(GUEST_TR_LIMIT);
+	vmcs_write32(GUEST_TR_LIMIT, RMODE_TSS_SIZE - 1);
+
+	vcpu->arch.rmode.tr.ar = vmcs_read32(GUEST_TR_AR_BYTES);
+	vmcs_write32(GUEST_TR_AR_BYTES, 0x008b);
+
+	flags = vmcs_readl(GUEST_RFLAGS);
+	vcpu->arch.rmode.save_iopl
+		= (flags & X86_EFLAGS_IOPL) >> IOPL_SHIFT;
+
+	flags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;
+
+	vmcs_writel(GUEST_RFLAGS, flags);
+	vmcs_writel(GUEST_CR4, vmcs_readl(GUEST_CR4) | X86_CR4_VME);
+	update_exception_bitmap(vcpu);
+
+	vmcs_write16(GUEST_SS_SELECTOR, vmcs_readl(GUEST_SS_BASE) >> 4);
+	vmcs_write32(GUEST_SS_LIMIT, 0xffff);
+	vmcs_write32(GUEST_SS_AR_BYTES, 0xf3);
+
+	vmcs_write32(GUEST_CS_AR_BYTES, 0xf3);
+	vmcs_write32(GUEST_CS_LIMIT, 0xffff);
+	if (vmcs_readl(GUEST_CS_BASE) == 0xffff0000)
+		vmcs_writel(GUEST_CS_BASE, 0xf0000);
+	vmcs_write16(GUEST_CS_SELECTOR, vmcs_readl(GUEST_CS_BASE) >> 4);
+
+	fix_rmode_seg(VCPU_SREG_ES, &vcpu->arch.rmode.es);
+	fix_rmode_seg(VCPU_SREG_DS, &vcpu->arch.rmode.ds);
+	fix_rmode_seg(VCPU_SREG_GS, &vcpu->arch.rmode.gs);
+	fix_rmode_seg(VCPU_SREG_FS, &vcpu->arch.rmode.fs);
+
+	kvm_mmu_reset_context(vcpu);
+	init_rmode_tss(vcpu->kvm);
+}
+
+#ifdef CONFIG_X86_64
+
+static void enter_lmode(struct kvm_vcpu *vcpu)
+{
+	u32 guest_tr_ar;
+
+	guest_tr_ar = vmcs_read32(GUEST_TR_AR_BYTES);
+	if ((guest_tr_ar & AR_TYPE_MASK) != AR_TYPE_BUSY_64_TSS) {
+		printk(KERN_DEBUG "%s: tss fixup for long mode. \n",
+		       __FUNCTION__);
+		vmcs_write32(GUEST_TR_AR_BYTES,
+			     (guest_tr_ar & ~AR_TYPE_MASK)
+			     | AR_TYPE_BUSY_64_TSS);
+	}
+
+	vcpu->arch.shadow_efer |= EFER_LMA;
+
+	find_msr_entry(to_vmx(vcpu), MSR_EFER)->data |= EFER_LMA | EFER_LME;
+	vmcs_write32(VM_ENTRY_CONTROLS,
+		     vmcs_read32(VM_ENTRY_CONTROLS)
+		     | VM_ENTRY_IA32E_MODE);
+}
+
+static void exit_lmode(struct kvm_vcpu *vcpu)
+{
+	vcpu->arch.shadow_efer &= ~EFER_LMA;
+
+	vmcs_write32(VM_ENTRY_CONTROLS,
+		     vmcs_read32(VM_ENTRY_CONTROLS)
+		     & ~VM_ENTRY_IA32E_MODE);
+}
+
+#endif
+
+static void vmx_decache_cr4_guest_bits(struct kvm_vcpu *vcpu)
+{
+	vcpu->arch.cr4 &= KVM_GUEST_CR4_MASK;
+	vcpu->arch.cr4 |= vmcs_readl(GUEST_CR4) & ~KVM_GUEST_CR4_MASK;
+}
+
+static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
+{
+	vmx_fpu_deactivate(vcpu);
+
+	if (vcpu->arch.rmode.active && (cr0 & X86_CR0_PE))
+		enter_pmode(vcpu);
+
+	if (!vcpu->arch.rmode.active && !(cr0 & X86_CR0_PE))
+		enter_rmode(vcpu);
+
+#ifdef CONFIG_X86_64
+	if (vcpu->arch.shadow_efer & EFER_LME) {
+		if (!is_paging(vcpu) && (cr0 & X86_CR0_PG))
+			enter_lmode(vcpu);
+		if (is_paging(vcpu) && !(cr0 & X86_CR0_PG))
+			exit_lmode(vcpu);
+	}
+#endif
+
+	vmcs_writel(CR0_READ_SHADOW, cr0);
+	vmcs_writel(GUEST_CR0,
+		    (cr0 & ~KVM_GUEST_CR0_MASK) | KVM_VM_CR0_ALWAYS_ON);
+	vcpu->arch.cr0 = cr0;
+
+	if (!(cr0 & X86_CR0_TS) || !(cr0 & X86_CR0_PE))
+		vmx_fpu_activate(vcpu);
+}
+
+static void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
+{
+	vmcs_writel(GUEST_CR3, cr3);
+	if (vcpu->arch.cr0 & X86_CR0_PE)
+		vmx_fpu_deactivate(vcpu);
+}
+
+static void vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
+{
+	vmcs_writel(CR4_READ_SHADOW, cr4);
+	vmcs_writel(GUEST_CR4, cr4 | (vcpu->arch.rmode.active ?
+		    KVM_RMODE_VM_CR4_ALWAYS_ON : KVM_PMODE_VM_CR4_ALWAYS_ON));
+	vcpu->arch.cr4 = cr4;
+}
+
+#ifdef CONFIG_X86_64
+
+static void vmx_set_efer(struct kvm_vcpu *vcpu, u64 efer)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	struct kvm_msr_entry *msr = find_msr_entry(vmx, MSR_EFER);
+
+	vcpu->arch.shadow_efer = efer;
+	if (efer & EFER_LMA) {
+		vmcs_write32(VM_ENTRY_CONTROLS,
+				     vmcs_read32(VM_ENTRY_CONTROLS) |
+				     VM_ENTRY_IA32E_MODE);
+		msr->data = efer;
+
+	} else {
+		vmcs_write32(VM_ENTRY_CONTROLS,
+				     vmcs_read32(VM_ENTRY_CONTROLS) &
+				     ~VM_ENTRY_IA32E_MODE);
+
+		msr->data = efer & ~EFER_LME;
+	}
+	setup_msrs(vmx);
+}
+
+#endif
+
+static u64 vmx_get_segment_base(struct kvm_vcpu *vcpu, int seg)
+{
+	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
+
+	return vmcs_readl(sf->base);
+}
+
+static void vmx_get_segment(struct kvm_vcpu *vcpu,
+			    struct kvm_segment *var, int seg)
+{
+	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
+	u32 ar;
+
+	var->base = vmcs_readl(sf->base);
+	var->limit = vmcs_read32(sf->limit);
+	var->selector = vmcs_read16(sf->selector);
+	ar = vmcs_read32(sf->ar_bytes);
+	if (ar & AR_UNUSABLE_MASK)
+		ar = 0;
+	var->type = ar & 15;
+	var->s = (ar >> 4) & 1;
+	var->dpl = (ar >> 5) & 3;
+	var->present = (ar >> 7) & 1;
+	var->avl = (ar >> 12) & 1;
+	var->l = (ar >> 13) & 1;
+	var->db = (ar >> 14) & 1;
+	var->g = (ar >> 15) & 1;
+	var->unusable = (ar >> 16) & 1;
+}
+
+static u32 vmx_segment_access_rights(struct kvm_segment *var)
+{
+	u32 ar;
+
+	if (var->unusable)
+		ar = 1 << 16;
+	else {
+		ar = var->type & 15;
+		ar |= (var->s & 1) << 4;
+		ar |= (var->dpl & 3) << 5;
+		ar |= (var->present & 1) << 7;
+		ar |= (var->avl & 1) << 12;
+		ar |= (var->l & 1) << 13;
+		ar |= (var->db & 1) << 14;
+		ar |= (var->g & 1) << 15;
+	}
+	if (ar == 0) /* a 0 value means unusable */
+		ar = AR_UNUSABLE_MASK;
+
+	return ar;
+}
+
+static void vmx_set_segment(struct kvm_vcpu *vcpu,
+			    struct kvm_segment *var, int seg)
+{
+	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
+	u32 ar;
+
+	if (vcpu->arch.rmode.active && seg == VCPU_SREG_TR) {
+		vcpu->arch.rmode.tr.selector = var->selector;
+		vcpu->arch.rmode.tr.base = var->base;
+		vcpu->arch.rmode.tr.limit = var->limit;
+		vcpu->arch.rmode.tr.ar = vmx_segment_access_rights(var);
+		return;
+	}
+	vmcs_writel(sf->base, var->base);
+	vmcs_write32(sf->limit, var->limit);
+	vmcs_write16(sf->selector, var->selector);
+	if (vcpu->arch.rmode.active && var->s) {
+		/*
+		 * Hack real-mode segments into vm86 compatibility.
+		 */
+		if (var->base == 0xffff0000 && var->selector == 0xf000)
+			vmcs_writel(sf->base, 0xf0000);
+		ar = 0xf3;
+	} else
+		ar = vmx_segment_access_rights(var);
+	vmcs_write32(sf->ar_bytes, ar);
+}
+
+static void vmx_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l)
+{
+	u32 ar = vmcs_read32(GUEST_CS_AR_BYTES);
+
+	*db = (ar >> 14) & 1;
+	*l = (ar >> 13) & 1;
+}
+
+static void vmx_get_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
+{
+	dt->limit = vmcs_read32(GUEST_IDTR_LIMIT);
+	dt->base = vmcs_readl(GUEST_IDTR_BASE);
+}
+
+static void vmx_set_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
+{
+	vmcs_write32(GUEST_IDTR_LIMIT, dt->limit);
+	vmcs_writel(GUEST_IDTR_BASE, dt->base);
+}
+
+static void vmx_get_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
+{
+	dt->limit = vmcs_read32(GUEST_GDTR_LIMIT);
+	dt->base = vmcs_readl(GUEST_GDTR_BASE);
+}
+
+static void vmx_set_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
+{
+	vmcs_write32(GUEST_GDTR_LIMIT, dt->limit);
+	vmcs_writel(GUEST_GDTR_BASE, dt->base);
+}
+
+static int init_rmode_tss(struct kvm *kvm)
+{
+	gfn_t fn = rmode_tss_base(kvm) >> PAGE_SHIFT;
+	u16 data = 0;
+	int r;
+
+	r = kvm_clear_guest_page(kvm, fn, 0, PAGE_SIZE);
+	if (r < 0)
+		return 0;
+	data = TSS_BASE_SIZE + TSS_REDIRECTION_SIZE;
+	r = kvm_write_guest_page(kvm, fn++, &data, 0x66, sizeof(u16));
+	if (r < 0)
+		return 0;
+	r = kvm_clear_guest_page(kvm, fn++, 0, PAGE_SIZE);
+	if (r < 0)
+		return 0;
+	r = kvm_clear_guest_page(kvm, fn, 0, PAGE_SIZE);
+	if (r < 0)
+		return 0;
+	data = ~0;
+	r = kvm_write_guest_page(kvm, fn, &data, RMODE_TSS_SIZE - 2 * PAGE_SIZE - 1,
+			sizeof(u8));
+	if (r < 0)
+		return 0;
+	return 1;
+}
+
+static void seg_setup(int seg)
+{
+	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
+
+	vmcs_write16(sf->selector, 0);
+	vmcs_writel(sf->base, 0);
+	vmcs_write32(sf->limit, 0xffff);
+	vmcs_write32(sf->ar_bytes, 0x93);
+}
+
+static int alloc_apic_access_page(struct kvm *kvm)
+{
+	struct kvm_userspace_memory_region kvm_userspace_mem;
+	int r = 0;
+
+	mutex_lock(&kvm->lock);
+	if (kvm->arch.apic_access_page)
+		goto out;
+	kvm_userspace_mem.slot = APIC_ACCESS_PAGE_PRIVATE_MEMSLOT;
+	kvm_userspace_mem.flags = 0;
+	kvm_userspace_mem.guest_phys_addr = 0xfee00000ULL;
+	kvm_userspace_mem.memory_size = PAGE_SIZE;
+	r = __kvm_set_memory_region(kvm, &kvm_userspace_mem, 0);
+	if (r)
+		goto out;
+	kvm->arch.apic_access_page = gfn_to_page(kvm, 0xfee00);
+out:
+	mutex_unlock(&kvm->lock);
+	return r;
+}
+
+/*
+ * Sets up the vmcs for emulated real mode.
+ */
+static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
+{
+	u32 host_sysenter_cs;
+	u32 junk;
+	unsigned long a;
+	struct descriptor_table dt;
+	int i;
+	unsigned long kvm_vmx_return;
+	u32 exec_control;
+
+	/* I/O */
+	vmcs_write64(IO_BITMAP_A, page_to_phys(vmx_io_bitmap_a));
+	vmcs_write64(IO_BITMAP_B, page_to_phys(vmx_io_bitmap_b));
+
+	vmcs_write64(VMCS_LINK_POINTER, -1ull); /* 22.3.1.5 */
+
+	/* Control */
+	vmcs_write32(PIN_BASED_VM_EXEC_CONTROL,
+		vmcs_config.pin_based_exec_ctrl);
+
+	exec_control = vmcs_config.cpu_based_exec_ctrl;
+	if (!vm_need_tpr_shadow(vmx->vcpu.kvm)) {
+		exec_control &= ~CPU_BASED_TPR_SHADOW;
+#ifdef CONFIG_X86_64
+		exec_control |= CPU_BASED_CR8_STORE_EXITING |
+				CPU_BASED_CR8_LOAD_EXITING;
+#endif
+	}
+	vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, exec_control);
+
+	if (cpu_has_secondary_exec_ctrls()) {
+		exec_control = vmcs_config.cpu_based_2nd_exec_ctrl;
+		if (!vm_need_virtualize_apic_accesses(vmx->vcpu.kvm))
+			exec_control &=
+				~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
+		vmcs_write32(SECONDARY_VM_EXEC_CONTROL, exec_control);
+	}
+
+	vmcs_write32(PAGE_FAULT_ERROR_CODE_MASK, !!bypass_guest_pf);
+	vmcs_write32(PAGE_FAULT_ERROR_CODE_MATCH, !!bypass_guest_pf);
+	vmcs_write32(CR3_TARGET_COUNT, 0);           /* 22.2.1 */
+
+	vmcs_writel(HOST_CR0, read_cr0());  /* 22.2.3 */
+	vmcs_writel(HOST_CR4, read_cr4());  /* 22.2.3, 22.2.5 */
+	vmcs_writel(HOST_CR3, read_cr3());  /* 22.2.3  FIXME: shadow tables */
+
+	vmcs_write16(HOST_CS_SELECTOR, __KERNEL_CS);  /* 22.2.4 */
+	vmcs_write16(HOST_DS_SELECTOR, __KERNEL_DS);  /* 22.2.4 */
+	vmcs_write16(HOST_ES_SELECTOR, __KERNEL_DS);  /* 22.2.4 */
+	vmcs_write16(HOST_FS_SELECTOR, read_fs());    /* 22.2.4 */
+	vmcs_write16(HOST_GS_SELECTOR, read_gs());    /* 22.2.4 */
+	vmcs_write16(HOST_SS_SELECTOR, __KERNEL_DS);  /* 22.2.4 */
+#ifdef CONFIG_X86_64
+	rdmsrl(MSR_FS_BASE, a);
+	vmcs_writel(HOST_FS_BASE, a); /* 22.2.4 */
+	rdmsrl(MSR_GS_BASE, a);
+	vmcs_writel(HOST_GS_BASE, a); /* 22.2.4 */
+#else
+	vmcs_writel(HOST_FS_BASE, 0); /* 22.2.4 */
+	vmcs_writel(HOST_GS_BASE, 0); /* 22.2.4 */
+#endif
+
+	vmcs_write16(HOST_TR_SELECTOR, GDT_ENTRY_TSS*8);  /* 22.2.4 */
+
+	get_idt(&dt);
+	vmcs_writel(HOST_IDTR_BASE, dt.base);   /* 22.2.4 */
+
+	asm("mov $.Lkvm_vmx_return, %0" : "=r"(kvm_vmx_return));
+	vmcs_writel(HOST_RIP, kvm_vmx_return); /* 22.2.5 */
+	vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0);
+	vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0);
+	vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, 0);
+
+	rdmsr(MSR_IA32_SYSENTER_CS, host_sysenter_cs, junk);
+	vmcs_write32(HOST_IA32_SYSENTER_CS, host_sysenter_cs);
+	rdmsrl(MSR_IA32_SYSENTER_ESP, a);
+	vmcs_writel(HOST_IA32_SYSENTER_ESP, a);   /* 22.2.3 */
+	rdmsrl(MSR_IA32_SYSENTER_EIP, a);
+	vmcs_writel(HOST_IA32_SYSENTER_EIP, a);   /* 22.2.3 */
+
+	for (i = 0; i < NR_VMX_MSR; ++i) {
+		u32 index = vmx_msr_index[i];
+		u32 data_low, data_high;
+		u64 data;
+		int j = vmx->nmsrs;
+
+		if (rdmsr_safe(index, &data_low, &data_high) < 0)
+			continue;
+		if (wrmsr_safe(index, data_low, data_high) < 0)
+			continue;
+		data = data_low | ((u64)data_high << 32);
+		vmx->host_msrs[j].index = index;
+		vmx->host_msrs[j].reserved = 0;
+		vmx->host_msrs[j].data = data;
+		vmx->guest_msrs[j] = vmx->host_msrs[j];
+		++vmx->nmsrs;
+	}
+
+	vmcs_write32(VM_EXIT_CONTROLS, vmcs_config.vmexit_ctrl);
+
+	/* 22.2.1, 20.8.1 */
+	vmcs_write32(VM_ENTRY_CONTROLS, vmcs_config.vmentry_ctrl);
+
+	vmcs_writel(CR0_GUEST_HOST_MASK, ~0UL);
+	vmcs_writel(CR4_GUEST_HOST_MASK, KVM_GUEST_CR4_MASK);
+
+	if (vm_need_virtualize_apic_accesses(vmx->vcpu.kvm))
+		if (alloc_apic_access_page(vmx->vcpu.kvm) != 0)
+			return -ENOMEM;
+
+	return 0;
+}
+
+static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	u64 msr;
+	int ret;
+
+	if (!init_rmode_tss(vmx->vcpu.kvm)) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	vmx->vcpu.arch.rmode.active = 0;
+
+	vmx->vcpu.arch.regs[VCPU_REGS_RDX] = get_rdx_init_val();
+	set_cr8(&vmx->vcpu, 0);
+	msr = 0xfee00000 | MSR_IA32_APICBASE_ENABLE;
+	if (vmx->vcpu.vcpu_id == 0)
+		msr |= MSR_IA32_APICBASE_BSP;
+	kvm_set_apic_base(&vmx->vcpu, msr);
+
+	fx_init(&vmx->vcpu);
+
+	/*
+	 * GUEST_CS_BASE should really be 0xffff0000, but VT vm86 mode
+	 * insists on having GUEST_CS_BASE == GUEST_CS_SELECTOR << 4.  Sigh.
+	 */
+	if (vmx->vcpu.vcpu_id == 0) {
+		vmcs_write16(GUEST_CS_SELECTOR, 0xf000);
+		vmcs_writel(GUEST_CS_BASE, 0x000f0000);
+	} else {
+		vmcs_write16(GUEST_CS_SELECTOR, vmx->vcpu.arch.sipi_vector << 8);
+		vmcs_writel(GUEST_CS_BASE, vmx->vcpu.arch.sipi_vector << 12);
+	}
+	vmcs_write32(GUEST_CS_LIMIT, 0xffff);
+	vmcs_write32(GUEST_CS_AR_BYTES, 0x9b);
+
+	seg_setup(VCPU_SREG_DS);
+	seg_setup(VCPU_SREG_ES);
+	seg_setup(VCPU_SREG_FS);
+	seg_setup(VCPU_SREG_GS);
+	seg_setup(VCPU_SREG_SS);
+
+	vmcs_write16(GUEST_TR_SELECTOR, 0);
+	vmcs_writel(GUEST_TR_BASE, 0);
+	vmcs_write32(GUEST_TR_LIMIT, 0xffff);
+	vmcs_write32(GUEST_TR_AR_BYTES, 0x008b);
+
+	vmcs_write16(GUEST_LDTR_SELECTOR, 0);
+	vmcs_writel(GUEST_LDTR_BASE, 0);
+	vmcs_write32(GUEST_LDTR_LIMIT, 0xffff);
+	vmcs_write32(GUEST_LDTR_AR_BYTES, 0x00082);
+
+	vmcs_write32(GUEST_SYSENTER_CS, 0);
+	vmcs_writel(GUEST_SYSENTER_ESP, 0);
+	vmcs_writel(GUEST_SYSENTER_EIP, 0);
+
+	vmcs_writel(GUEST_RFLAGS, 0x02);
+	if (vmx->vcpu.vcpu_id == 0)
+		vmcs_writel(GUEST_RIP, 0xfff0);
+	else
+		vmcs_writel(GUEST_RIP, 0);
+	vmcs_writel(GUEST_RSP, 0);
+
+	/* todo: dr0 = dr1 = dr2 = dr3 = 0; dr6 = 0xffff0ff0 */
+	vmcs_writel(GUEST_DR7, 0x400);
+
+	vmcs_writel(GUEST_GDTR_BASE, 0);
+	vmcs_write32(GUEST_GDTR_LIMIT, 0xffff);
+
+	vmcs_writel(GUEST_IDTR_BASE, 0);
+	vmcs_write32(GUEST_IDTR_LIMIT, 0xffff);
+
+	vmcs_write32(GUEST_ACTIVITY_STATE, 0);
+	vmcs_write32(GUEST_INTERRUPTIBILITY_INFO, 0);
+	vmcs_write32(GUEST_PENDING_DBG_EXCEPTIONS, 0);
+
+	guest_write_tsc(0);
+
+	/* Special registers */
+	vmcs_write64(GUEST_IA32_DEBUGCTL, 0);
+
+	setup_msrs(vmx);
+
+	vmcs_write32(VM_ENTRY_INTR_INFO_FIELD, 0);  /* 22.2.1 */
+
+	if (cpu_has_vmx_tpr_shadow()) {
+		vmcs_write64(VIRTUAL_APIC_PAGE_ADDR, 0);
+		if (vm_need_tpr_shadow(vmx->vcpu.kvm))
+			vmcs_write64(VIRTUAL_APIC_PAGE_ADDR,
+				page_to_phys(vmx->vcpu.arch.apic->regs_page));
+		vmcs_write32(TPR_THRESHOLD, 0);
+	}
+
+	if (vm_need_virtualize_apic_accesses(vmx->vcpu.kvm))
+		vmcs_write64(APIC_ACCESS_ADDR,
+			     page_to_phys(vmx->vcpu.kvm->arch.apic_access_page));
+
+	vmx->vcpu.arch.cr0 = 0x60000010;
+	vmx_set_cr0(&vmx->vcpu, vmx->vcpu.arch.cr0); /* enter rmode */
+	vmx_set_cr4(&vmx->vcpu, 0);
+#ifdef CONFIG_X86_64
+	vmx_set_efer(&vmx->vcpu, 0);
+#endif
+	vmx_fpu_activate(&vmx->vcpu);
+	update_exception_bitmap(&vmx->vcpu);
+
+	return 0;
+
+out:
+	return ret;
+}
+
+static void vmx_inject_irq(struct kvm_vcpu *vcpu, int irq)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+
+	if (vcpu->arch.rmode.active) {
+		vmx->rmode.irq.pending = true;
+		vmx->rmode.irq.vector = irq;
+		vmx->rmode.irq.rip = vmcs_readl(GUEST_RIP);
+		vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,
+			     irq | INTR_TYPE_SOFT_INTR | INTR_INFO_VALID_MASK);
+		vmcs_write32(VM_ENTRY_INSTRUCTION_LEN, 1);
+		vmcs_writel(GUEST_RIP, vmx->rmode.irq.rip - 1);
+		return;
+	}
+	vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,
+			irq | INTR_TYPE_EXT_INTR | INTR_INFO_VALID_MASK);
+}
+
+static void kvm_do_inject_irq(struct kvm_vcpu *vcpu)
+{
+	int word_index = __ffs(vcpu->arch.irq_summary);
+	int bit_index = __ffs(vcpu->arch.irq_pending[word_index]);
+	int irq = word_index * BITS_PER_LONG + bit_index;
+
+	clear_bit(bit_index, &vcpu->arch.irq_pending[word_index]);
+	if (!vcpu->arch.irq_pending[word_index])
+		clear_bit(word_index, &vcpu->arch.irq_summary);
+	vmx_inject_irq(vcpu, irq);
+}
+
+
+static void do_interrupt_requests(struct kvm_vcpu *vcpu,
+				       struct kvm_run *kvm_run)
+{
+	u32 cpu_based_vm_exec_control;
+
+	vcpu->arch.interrupt_window_open =
+		((vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_IF) &&
+		 (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & 3) == 0);
+
+	if (vcpu->arch.interrupt_window_open &&
+	    vcpu->arch.irq_summary &&
+	    !(vmcs_read32(VM_ENTRY_INTR_INFO_FIELD) & INTR_INFO_VALID_MASK))
+		/*
+		 * If interrupts enabled, and not blocked by sti or mov ss. Good.
+		 */
+		kvm_do_inject_irq(vcpu);
+
+	cpu_based_vm_exec_control = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL);
+	if (!vcpu->arch.interrupt_window_open &&
+	    (vcpu->arch.irq_summary || kvm_run->request_interrupt_window))
+		/*
+		 * Interrupts blocked.  Wait for unblock.
+		 */
+		cpu_based_vm_exec_control |= CPU_BASED_VIRTUAL_INTR_PENDING;
+	else
+		cpu_based_vm_exec_control &= ~CPU_BASED_VIRTUAL_INTR_PENDING;
+	vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, cpu_based_vm_exec_control);
+}
+
+static int vmx_set_tss_addr(struct kvm *kvm, unsigned int addr)
+{
+	int ret;
+	struct kvm_userspace_memory_region tss_mem = {
+		.slot = 8,
+		.guest_phys_addr = addr,
+		.memory_size = PAGE_SIZE * 3,
+		.flags = 0,
+	};
+
+	ret = kvm_set_memory_region(kvm, &tss_mem, 0);
+	if (ret)
+		return ret;
+	kvm->arch.tss_addr = addr;
+	return 0;
+}
+
+static void kvm_guest_debug_pre(struct kvm_vcpu *vcpu)
+{
+	struct kvm_guest_debug *dbg = &vcpu->guest_debug;
+
+	set_debugreg(dbg->bp[0], 0);
+	set_debugreg(dbg->bp[1], 1);
+	set_debugreg(dbg->bp[2], 2);
+	set_debugreg(dbg->bp[3], 3);
+
+	if (dbg->singlestep) {
+		unsigned long flags;
+
+		flags = vmcs_readl(GUEST_RFLAGS);
+		flags |= X86_EFLAGS_TF | X86_EFLAGS_RF;
+		vmcs_writel(GUEST_RFLAGS, flags);
+	}
+}
+
+static int handle_rmode_exception(struct kvm_vcpu *vcpu,
+				  int vec, u32 err_code)
+{
+	if (!vcpu->arch.rmode.active)
+		return 0;
+
+	/*
+	 * Instruction with address size override prefix opcode 0x67
+	 * Cause the #SS fault with 0 error code in VM86 mode.
+	 */
+	if (((vec == GP_VECTOR) || (vec == SS_VECTOR)) && err_code == 0)
+		if (emulate_instruction(vcpu, NULL, 0, 0, 0) == EMULATE_DONE)
+			return 1;
+	return 0;
+}
+
+static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	u32 intr_info, error_code;
+	unsigned long cr2, rip;
+	u32 vect_info;
+	enum emulation_result er;
+
+	vect_info = vmx->idt_vectoring_info;
+	intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
+
+	if ((vect_info & VECTORING_INFO_VALID_MASK) &&
+						!is_page_fault(intr_info))
+		printk(KERN_ERR "%s: unexpected, vectoring info 0x%x "
+		       "intr info 0x%x\n", __FUNCTION__, vect_info, intr_info);
+
+	if (!irqchip_in_kernel(vcpu->kvm) && is_external_interrupt(vect_info)) {
+		int irq = vect_info & VECTORING_INFO_VECTOR_MASK;
+		set_bit(irq, vcpu->arch.irq_pending);
+		set_bit(irq / BITS_PER_LONG, &vcpu->arch.irq_summary);
+	}
+
+	if ((intr_info & INTR_INFO_INTR_TYPE_MASK) == 0x200) /* nmi */
+		return 1;  /* already handled by vmx_vcpu_run() */
+
+	if (is_no_device(intr_info)) {
+		vmx_fpu_activate(vcpu);
+		return 1;
+	}
+
+	if (is_invalid_opcode(intr_info)) {
+		er = emulate_instruction(vcpu, kvm_run, 0, 0, 0);
+		if (er != EMULATE_DONE)
+			kvm_queue_exception(vcpu, UD_VECTOR);
+		return 1;
+	}
+
+	error_code = 0;
+	rip = vmcs_readl(GUEST_RIP);
+	if (intr_info & INTR_INFO_DELIEVER_CODE_MASK)
+		error_code = vmcs_read32(VM_EXIT_INTR_ERROR_CODE);
+	if (is_page_fault(intr_info)) {
+		cr2 = vmcs_readl(EXIT_QUALIFICATION);
+		return kvm_mmu_page_fault(vcpu, cr2, error_code);
+	}
+
+	if (vcpu->arch.rmode.active &&
+	    handle_rmode_exception(vcpu, intr_info & INTR_INFO_VECTOR_MASK,
+								error_code)) {
+		if (vcpu->arch.halt_request) {
+			vcpu->arch.halt_request = 0;
+			return kvm_emulate_halt(vcpu);
+		}
+		return 1;
+	}
+
+	if ((intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK)) ==
+	    (INTR_TYPE_EXCEPTION | 1)) {
+		kvm_run->exit_reason = KVM_EXIT_DEBUG;
+		return 0;
+	}
+	kvm_run->exit_reason = KVM_EXIT_EXCEPTION;
+	kvm_run->ex.exception = intr_info & INTR_INFO_VECTOR_MASK;
+	kvm_run->ex.error_code = error_code;
+	return 0;
+}
+
+static int handle_external_interrupt(struct kvm_vcpu *vcpu,
+				     struct kvm_run *kvm_run)
+{
+	++vcpu->stat.irq_exits;
+	return 1;
+}
+
+static int handle_triple_fault(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	kvm_run->exit_reason = KVM_EXIT_SHUTDOWN;
+	return 0;
+}
+
+static int handle_io(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	unsigned long exit_qualification;
+	int size, down, in, string, rep;
+	unsigned port;
+
+	++vcpu->stat.io_exits;
+	exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
+	string = (exit_qualification & 16) != 0;
+
+	if (string) {
+		if (emulate_instruction(vcpu,
+					kvm_run, 0, 0, 0) == EMULATE_DO_MMIO)
+			return 0;
+		return 1;
+	}
+
+	size = (exit_qualification & 7) + 1;
+	in = (exit_qualification & 8) != 0;
+	down = (vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_DF) != 0;
+	rep = (exit_qualification & 32) != 0;
+	port = exit_qualification >> 16;
+
+	return kvm_emulate_pio(vcpu, kvm_run, in, size, port);
+}
+
+static void
+vmx_patch_hypercall(struct kvm_vcpu *vcpu, unsigned char *hypercall)
+{
+	/*
+	 * Patch in the VMCALL instruction:
+	 */
+	hypercall[0] = 0x0f;
+	hypercall[1] = 0x01;
+	hypercall[2] = 0xc1;
+}
+
+static int handle_cr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	unsigned long exit_qualification;
+	int cr;
+	int reg;
+
+	exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
+	cr = exit_qualification & 15;
+	reg = (exit_qualification >> 8) & 15;
+	switch ((exit_qualification >> 4) & 3) {
+	case 0: /* mov to cr */
+		switch (cr) {
+		case 0:
+			vcpu_load_rsp_rip(vcpu);
+			set_cr0(vcpu, vcpu->arch.regs[reg]);
+			skip_emulated_instruction(vcpu);
+			return 1;
+		case 3:
+			vcpu_load_rsp_rip(vcpu);
+			set_cr3(vcpu, vcpu->arch.regs[reg]);
+			skip_emulated_instruction(vcpu);
+			return 1;
+		case 4:
+			vcpu_load_rsp_rip(vcpu);
+			set_cr4(vcpu, vcpu->arch.regs[reg]);
+			skip_emulated_instruction(vcpu);
+			return 1;
+		case 8:
+			vcpu_load_rsp_rip(vcpu);
+			set_cr8(vcpu, vcpu->arch.regs[reg]);
+			skip_emulated_instruction(vcpu);
+			if (irqchip_in_kernel(vcpu->kvm))
+				return 1;
+			kvm_run->exit_reason = KVM_EXIT_SET_TPR;
+			return 0;
+		};
+		break;
+	case 2: /* clts */
+		vcpu_load_rsp_rip(vcpu);
+		vmx_fpu_deactivate(vcpu);
+		vcpu->arch.cr0 &= ~X86_CR0_TS;
+		vmcs_writel(CR0_READ_SHADOW, vcpu->arch.cr0);
+		vmx_fpu_activate(vcpu);
+		skip_emulated_instruction(vcpu);
+		return 1;
+	case 1: /*mov from cr*/
+		switch (cr) {
+		case 3:
+			vcpu_load_rsp_rip(vcpu);
+			vcpu->arch.regs[reg] = vcpu->arch.cr3;
+			vcpu_put_rsp_rip(vcpu);
+			skip_emulated_instruction(vcpu);
+			return 1;
+		case 8:
+			vcpu_load_rsp_rip(vcpu);
+			vcpu->arch.regs[reg] = get_cr8(vcpu);
+			vcpu_put_rsp_rip(vcpu);
+			skip_emulated_instruction(vcpu);
+			return 1;
+		}
+		break;
+	case 3: /* lmsw */
+		lmsw(vcpu, (exit_qualification >> LMSW_SOURCE_DATA_SHIFT) & 0x0f);
+
+		skip_emulated_instruction(vcpu);
+		return 1;
+	default:
+		break;
+	}
+	kvm_run->exit_reason = 0;
+	pr_unimpl(vcpu, "unhandled control register: op %d cr %d\n",
+	       (int)(exit_qualification >> 4) & 3, cr);
+	return 0;
+}
+
+static int handle_dr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	unsigned long exit_qualification;
+	unsigned long val;
+	int dr, reg;
+
+	/*
+	 * FIXME: this code assumes the host is debugging the guest.
+	 *        need to deal with guest debugging itself too.
+	 */
+	exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
+	dr = exit_qualification & 7;
+	reg = (exit_qualification >> 8) & 15;
+	vcpu_load_rsp_rip(vcpu);
+	if (exit_qualification & 16) {
+		/* mov from dr */
+		switch (dr) {
+		case 6:
+			val = 0xffff0ff0;
+			break;
+		case 7:
+			val = 0x400;
+			break;
+		default:
+			val = 0;
+		}
+		vcpu->arch.regs[reg] = val;
+	} else {
+		/* mov to dr */
+	}
+	vcpu_put_rsp_rip(vcpu);
+	skip_emulated_instruction(vcpu);
+	return 1;
+}
+
+static int handle_cpuid(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	kvm_emulate_cpuid(vcpu);
+	return 1;
+}
+
+static int handle_rdmsr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	u32 ecx = vcpu->arch.regs[VCPU_REGS_RCX];
+	u64 data;
+
+	if (vmx_get_msr(vcpu, ecx, &data)) {
+		kvm_inject_gp(vcpu, 0);
+		return 1;
+	}
+
+	/* FIXME: handling of bits 32:63 of rax, rdx */
+	vcpu->arch.regs[VCPU_REGS_RAX] = data & -1u;
+	vcpu->arch.regs[VCPU_REGS_RDX] = (data >> 32) & -1u;
+	skip_emulated_instruction(vcpu);
+	return 1;
+}
+
+static int handle_wrmsr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	u32 ecx = vcpu->arch.regs[VCPU_REGS_RCX];
+	u64 data = (vcpu->arch.regs[VCPU_REGS_RAX] & -1u)
+		| ((u64)(vcpu->arch.regs[VCPU_REGS_RDX] & -1u) << 32);
+
+	if (vmx_set_msr(vcpu, ecx, data) != 0) {
+		kvm_inject_gp(vcpu, 0);
+		return 1;
+	}
+
+	skip_emulated_instruction(vcpu);
+	return 1;
+}
+
+static int handle_tpr_below_threshold(struct kvm_vcpu *vcpu,
+				      struct kvm_run *kvm_run)
+{
+	return 1;
+}
+
+static int handle_interrupt_window(struct kvm_vcpu *vcpu,
+				   struct kvm_run *kvm_run)
+{
+	u32 cpu_based_vm_exec_control;
+
+	/* clear pending irq */
+	cpu_based_vm_exec_control = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL);
+	cpu_based_vm_exec_control &= ~CPU_BASED_VIRTUAL_INTR_PENDING;
+	vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, cpu_based_vm_exec_control);
+	/*
+	 * If the user space waits to inject interrupts, exit as soon as
+	 * possible
+	 */
+	if (kvm_run->request_interrupt_window &&
+	    !vcpu->arch.irq_summary) {
+		kvm_run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN;
+		++vcpu->stat.irq_window_exits;
+		return 0;
+	}
+	return 1;
+}
+
+static int handle_halt(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	skip_emulated_instruction(vcpu);
+	return kvm_emulate_halt(vcpu);
+}
+
+static int handle_vmcall(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	skip_emulated_instruction(vcpu);
+	kvm_emulate_hypercall(vcpu);
+	return 1;
+}
+
+static int handle_wbinvd(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	skip_emulated_instruction(vcpu);
+	/* TODO: Add support for VT-d/pass-through device */
+	return 1;
+}
+
+static int handle_apic_access(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	u64 exit_qualification;
+	enum emulation_result er;
+	unsigned long offset;
+
+	exit_qualification = vmcs_read64(EXIT_QUALIFICATION);
+	offset = exit_qualification & 0xffful;
+
+	er = emulate_instruction(vcpu, kvm_run, 0, 0, 0);
+
+	if (er !=  EMULATE_DONE) {
+		printk(KERN_ERR
+		       "Fail to handle apic access vmexit! Offset is 0x%lx\n",
+		       offset);
+		return -ENOTSUPP;
+	}
+	return 1;
+}
+
+/*
+ * The exit handlers return 1 if the exit was handled fully and guest execution
+ * may resume.  Otherwise they set the kvm_run parameter to indicate what needs
+ * to be done to userspace and return 0.
+ */
+static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu,
+				      struct kvm_run *kvm_run) = {
+	[EXIT_REASON_EXCEPTION_NMI]           = handle_exception,
+	[EXIT_REASON_EXTERNAL_INTERRUPT]      = handle_external_interrupt,
+	[EXIT_REASON_TRIPLE_FAULT]            = handle_triple_fault,
+	[EXIT_REASON_IO_INSTRUCTION]          = handle_io,
+	[EXIT_REASON_CR_ACCESS]               = handle_cr,
+	[EXIT_REASON_DR_ACCESS]               = handle_dr,
+	[EXIT_REASON_CPUID]                   = handle_cpuid,
+	[EXIT_REASON_MSR_READ]                = handle_rdmsr,
+	[EXIT_REASON_MSR_WRITE]               = handle_wrmsr,
+	[EXIT_REASON_PENDING_INTERRUPT]       = handle_interrupt_window,
+	[EXIT_REASON_HLT]                     = handle_halt,
+	[EXIT_REASON_VMCALL]                  = handle_vmcall,
+	[EXIT_REASON_TPR_BELOW_THRESHOLD]     = handle_tpr_below_threshold,
+	[EXIT_REASON_APIC_ACCESS]             = handle_apic_access,
+	[EXIT_REASON_WBINVD]                  = handle_wbinvd,
+};
+
+static const int kvm_vmx_max_exit_handlers =
+	ARRAY_SIZE(kvm_vmx_exit_handlers);
+
+/*
+ * The guest has exited.  See if we can fix it or if we need userspace
+ * assistance.
+ */
+static int kvm_handle_exit(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
+{
+	u32 exit_reason = vmcs_read32(VM_EXIT_REASON);
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	u32 vectoring_info = vmx->idt_vectoring_info;
+
+	if (unlikely(vmx->fail)) {
+		kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY;
+		kvm_run->fail_entry.hardware_entry_failure_reason
+			= vmcs_read32(VM_INSTRUCTION_ERROR);
+		return 0;
+	}
+
+	if ((vectoring_info & VECTORING_INFO_VALID_MASK) &&
+				exit_reason != EXIT_REASON_EXCEPTION_NMI)
+		printk(KERN_WARNING "%s: unexpected, valid vectoring info and "
+		       "exit reason is 0x%x\n", __FUNCTION__, exit_reason);
+	if (exit_reason < kvm_vmx_max_exit_handlers
+	    && kvm_vmx_exit_handlers[exit_reason])
+		return kvm_vmx_exit_handlers[exit_reason](vcpu, kvm_run);
+	else {
+		kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
+		kvm_run->hw.hardware_exit_reason = exit_reason;
+	}
+	return 0;
+}
+
+static void vmx_flush_tlb(struct kvm_vcpu *vcpu)
+{
+}
+
+static void update_tpr_threshold(struct kvm_vcpu *vcpu)
+{
+	int max_irr, tpr;
+
+	if (!vm_need_tpr_shadow(vcpu->kvm))
+		return;
+
+	if (!kvm_lapic_enabled(vcpu) ||
+	    ((max_irr = kvm_lapic_find_highest_irr(vcpu)) == -1)) {
+		vmcs_write32(TPR_THRESHOLD, 0);
+		return;
+	}
+
+	tpr = (kvm_lapic_get_cr8(vcpu) & 0x0f) << 4;
+	vmcs_write32(TPR_THRESHOLD, (max_irr > tpr) ? tpr >> 4 : max_irr >> 4);
+}
+
+static void enable_irq_window(struct kvm_vcpu *vcpu)
+{
+	u32 cpu_based_vm_exec_control;
+
+	cpu_based_vm_exec_control = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL);
+	cpu_based_vm_exec_control |= CPU_BASED_VIRTUAL_INTR_PENDING;
+	vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, cpu_based_vm_exec_control);
+}
+
+static void vmx_intr_assist(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	u32 idtv_info_field, intr_info_field;
+	int has_ext_irq, interrupt_window_open;
+	int vector;
+
+	update_tpr_threshold(vcpu);
+
+	has_ext_irq = kvm_cpu_has_interrupt(vcpu);
+	intr_info_field = vmcs_read32(VM_ENTRY_INTR_INFO_FIELD);
+	idtv_info_field = vmx->idt_vectoring_info;
+	if (intr_info_field & INTR_INFO_VALID_MASK) {
+		if (idtv_info_field & INTR_INFO_VALID_MASK) {
+			/* TODO: fault when IDT_Vectoring */
+			if (printk_ratelimit())
+				printk(KERN_ERR "Fault when IDT_Vectoring\n");
+		}
+		if (has_ext_irq)
+			enable_irq_window(vcpu);
+		return;
+	}
+	if (unlikely(idtv_info_field & INTR_INFO_VALID_MASK)) {
+		if ((idtv_info_field & VECTORING_INFO_TYPE_MASK)
+		    == INTR_TYPE_EXT_INTR
+		    && vcpu->arch.rmode.active) {
+			u8 vect = idtv_info_field & VECTORING_INFO_VECTOR_MASK;
+
+			vmx_inject_irq(vcpu, vect);
+			if (unlikely(has_ext_irq))
+				enable_irq_window(vcpu);
+			return;
+		}
+
+		vmcs_write32(VM_ENTRY_INTR_INFO_FIELD, idtv_info_field);
+		vmcs_write32(VM_ENTRY_INSTRUCTION_LEN,
+				vmcs_read32(VM_EXIT_INSTRUCTION_LEN));
+
+		if (unlikely(idtv_info_field & INTR_INFO_DELIEVER_CODE_MASK))
+			vmcs_write32(VM_ENTRY_EXCEPTION_ERROR_CODE,
+				vmcs_read32(IDT_VECTORING_ERROR_CODE));
+		if (unlikely(has_ext_irq))
+			enable_irq_window(vcpu);
+		return;
+	}
+	if (!has_ext_irq)
+		return;
+	interrupt_window_open =
+		((vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_IF) &&
+		 (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & 3) == 0);
+	if (interrupt_window_open) {
+		vector = kvm_cpu_get_interrupt(vcpu);
+		vmx_inject_irq(vcpu, vector);
+		kvm_timer_intr_post(vcpu, vector);
+	} else
+		enable_irq_window(vcpu);
+}
+
+/*
+ * Failure to inject an interrupt should give us the information
+ * in IDT_VECTORING_INFO_FIELD.  However, if the failure occurs
+ * when fetching the interrupt redirection bitmap in the real-mode
+ * tss, this doesn't happen.  So we do it ourselves.
+ */
+static void fixup_rmode_irq(struct vcpu_vmx *vmx)
+{
+	vmx->rmode.irq.pending = 0;
+	if (vmcs_readl(GUEST_RIP) + 1 != vmx->rmode.irq.rip)
+		return;
+	vmcs_writel(GUEST_RIP, vmx->rmode.irq.rip);
+	if (vmx->idt_vectoring_info & VECTORING_INFO_VALID_MASK) {
+		vmx->idt_vectoring_info &= ~VECTORING_INFO_TYPE_MASK;
+		vmx->idt_vectoring_info |= INTR_TYPE_EXT_INTR;
+		return;
+	}
+	vmx->idt_vectoring_info =
+		VECTORING_INFO_VALID_MASK
+		| INTR_TYPE_EXT_INTR
+		| vmx->rmode.irq.vector;
+}
+
+static void vmx_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	u32 intr_info;
+
+	/*
+	 * Loading guest fpu may have cleared host cr0.ts
+	 */
+	vmcs_writel(HOST_CR0, read_cr0());
+
+	asm(
+		/* Store host registers */
+#ifdef CONFIG_X86_64
+		"push %%rdx; push %%rbp;"
+		"push %%rcx \n\t"
+#else
+		"push %%edx; push %%ebp;"
+		"push %%ecx \n\t"
+#endif
+		ASM_VMX_VMWRITE_RSP_RDX "\n\t"
+		/* Check if vmlaunch of vmresume is needed */
+		"cmpl $0, %c[launched](%0) \n\t"
+		/* Load guest registers.  Don't clobber flags. */
+#ifdef CONFIG_X86_64
+		"mov %c[cr2](%0), %%rax \n\t"
+		"mov %%rax, %%cr2 \n\t"
+		"mov %c[rax](%0), %%rax \n\t"
+		"mov %c[rbx](%0), %%rbx \n\t"
+		"mov %c[rdx](%0), %%rdx \n\t"
+		"mov %c[rsi](%0), %%rsi \n\t"
+		"mov %c[rdi](%0), %%rdi \n\t"
+		"mov %c[rbp](%0), %%rbp \n\t"
+		"mov %c[r8](%0),  %%r8  \n\t"
+		"mov %c[r9](%0),  %%r9  \n\t"
+		"mov %c[r10](%0), %%r10 \n\t"
+		"mov %c[r11](%0), %%r11 \n\t"
+		"mov %c[r12](%0), %%r12 \n\t"
+		"mov %c[r13](%0), %%r13 \n\t"
+		"mov %c[r14](%0), %%r14 \n\t"
+		"mov %c[r15](%0), %%r15 \n\t"
+		"mov %c[rcx](%0), %%rcx \n\t" /* kills %0 (rcx) */
+#else
+		"mov %c[cr2](%0), %%eax \n\t"
+		"mov %%eax,   %%cr2 \n\t"
+		"mov %c[rax](%0), %%eax \n\t"
+		"mov %c[rbx](%0), %%ebx \n\t"
+		"mov %c[rdx](%0), %%edx \n\t"
+		"mov %c[rsi](%0), %%esi \n\t"
+		"mov %c[rdi](%0), %%edi \n\t"
+		"mov %c[rbp](%0), %%ebp \n\t"
+		"mov %c[rcx](%0), %%ecx \n\t" /* kills %0 (ecx) */
+#endif
+		/* Enter guest mode */
+		"jne .Llaunched \n\t"
+		ASM_VMX_VMLAUNCH "\n\t"
+		"jmp .Lkvm_vmx_return \n\t"
+		".Llaunched: " ASM_VMX_VMRESUME "\n\t"
+		".Lkvm_vmx_return: "
+		/* Save guest registers, load host registers, keep flags */
+#ifdef CONFIG_X86_64
+		"xchg %0,     (%%rsp) \n\t"
+		"mov %%rax, %c[rax](%0) \n\t"
+		"mov %%rbx, %c[rbx](%0) \n\t"
+		"pushq (%%rsp); popq %c[rcx](%0) \n\t"
+		"mov %%rdx, %c[rdx](%0) \n\t"
+		"mov %%rsi, %c[rsi](%0) \n\t"
+		"mov %%rdi, %c[rdi](%0) \n\t"
+		"mov %%rbp, %c[rbp](%0) \n\t"
+		"mov %%r8,  %c[r8](%0) \n\t"
+		"mov %%r9,  %c[r9](%0) \n\t"
+		"mov %%r10, %c[r10](%0) \n\t"
+		"mov %%r11, %c[r11](%0) \n\t"
+		"mov %%r12, %c[r12](%0) \n\t"
+		"mov %%r13, %c[r13](%0) \n\t"
+		"mov %%r14, %c[r14](%0) \n\t"
+		"mov %%r15, %c[r15](%0) \n\t"
+		"mov %%cr2, %%rax   \n\t"
+		"mov %%rax, %c[cr2](%0) \n\t"
+
+		"pop  %%rbp; pop  %%rbp; pop  %%rdx \n\t"
+#else
+		"xchg %0, (%%esp) \n\t"
+		"mov %%eax, %c[rax](%0) \n\t"
+		"mov %%ebx, %c[rbx](%0) \n\t"
+		"pushl (%%esp); popl %c[rcx](%0) \n\t"
+		"mov %%edx, %c[rdx](%0) \n\t"
+		"mov %%esi, %c[rsi](%0) \n\t"
+		"mov %%edi, %c[rdi](%0) \n\t"
+		"mov %%ebp, %c[rbp](%0) \n\t"
+		"mov %%cr2, %%eax  \n\t"
+		"mov %%eax, %c[cr2](%0) \n\t"
+
+		"pop %%ebp; pop %%ebp; pop %%edx \n\t"
+#endif
+		"setbe %c[fail](%0) \n\t"
+	      : : "c"(vmx), "d"((unsigned long)HOST_RSP),
+		[launched]"i"(offsetof(struct vcpu_vmx, launched)),
+		[fail]"i"(offsetof(struct vcpu_vmx, fail)),
+		[rax]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RAX])),
+		[rbx]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RBX])),
+		[rcx]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RCX])),
+		[rdx]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RDX])),
+		[rsi]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RSI])),
+		[rdi]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RDI])),
+		[rbp]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RBP])),
+#ifdef CONFIG_X86_64
+		[r8]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R8])),
+		[r9]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R9])),
+		[r10]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R10])),
+		[r11]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R11])),
+		[r12]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R12])),
+		[r13]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R13])),
+		[r14]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R14])),
+		[r15]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R15])),
+#endif
+		[cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2))
+	      : "cc", "memory"
+#ifdef CONFIG_X86_64
+		, "rbx", "rdi", "rsi"
+		, "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"
+#else
+		, "ebx", "edi", "rsi"
+#endif
+	      );
+
+	vmx->idt_vectoring_info = vmcs_read32(IDT_VECTORING_INFO_FIELD);
+	if (vmx->rmode.irq.pending)
+		fixup_rmode_irq(vmx);
+
+	vcpu->arch.interrupt_window_open =
+		(vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & 3) == 0;
+
+	asm("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS));
+	vmx->launched = 1;
+
+	intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
+
+	/* We need to handle NMIs before interrupts are enabled */
+	if ((intr_info & INTR_INFO_INTR_TYPE_MASK) == 0x200) /* nmi */
+		asm("int $2");
+}
+
+static void vmx_free_vmcs(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+
+	if (vmx->vmcs) {
+		on_each_cpu(__vcpu_clear, vmx, 0, 1);
+		free_vmcs(vmx->vmcs);
+		vmx->vmcs = NULL;
+	}
+}
+
+static void vmx_free_vcpu(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+
+	vmx_free_vmcs(vcpu);
+	kfree(vmx->host_msrs);
+	kfree(vmx->guest_msrs);
+	kvm_vcpu_uninit(vcpu);
+	kmem_cache_free(kvm_vcpu_cache, vmx);
+}
+
+static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
+{
+	int err;
+	struct vcpu_vmx *vmx = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
+	int cpu;
+
+	if (!vmx)
+		return ERR_PTR(-ENOMEM);
+
+	err = kvm_vcpu_init(&vmx->vcpu, kvm, id);
+	if (err)
+		goto free_vcpu;
+
+	vmx->guest_msrs = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!vmx->guest_msrs) {
+		err = -ENOMEM;
+		goto uninit_vcpu;
+	}
+
+	vmx->host_msrs = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!vmx->host_msrs)
+		goto free_guest_msrs;
+
+	vmx->vmcs = alloc_vmcs();
+	if (!vmx->vmcs)
+		goto free_msrs;
+
+	vmcs_clear(vmx->vmcs);
+
+	cpu = get_cpu();
+	vmx_vcpu_load(&vmx->vcpu, cpu);
+	err = vmx_vcpu_setup(vmx);
+	vmx_vcpu_put(&vmx->vcpu);
+	put_cpu();
+	if (err)
+		goto free_vmcs;
+
+	return &vmx->vcpu;
+
+free_vmcs:
+	free_vmcs(vmx->vmcs);
+free_msrs:
+	kfree(vmx->host_msrs);
+free_guest_msrs:
+	kfree(vmx->guest_msrs);
+uninit_vcpu:
+	kvm_vcpu_uninit(&vmx->vcpu);
+free_vcpu:
+	kmem_cache_free(kvm_vcpu_cache, vmx);
+	return ERR_PTR(err);
+}
+
+static void __init vmx_check_processor_compat(void *rtn)
+{
+	struct vmcs_config vmcs_conf;
+
+	*(int *)rtn = 0;
+	if (setup_vmcs_config(&vmcs_conf) < 0)
+		*(int *)rtn = -EIO;
+	if (memcmp(&vmcs_config, &vmcs_conf, sizeof(struct vmcs_config)) != 0) {
+		printk(KERN_ERR "kvm: CPU %d feature inconsistency!\n",
+				smp_processor_id());
+		*(int *)rtn = -EIO;
+	}
+}
+
+static struct kvm_x86_ops vmx_x86_ops = {
+	.cpu_has_kvm_support = cpu_has_kvm_support,
+	.disabled_by_bios = vmx_disabled_by_bios,
+	.hardware_setup = hardware_setup,
+	.hardware_unsetup = hardware_unsetup,
+	.check_processor_compatibility = vmx_check_processor_compat,
+	.hardware_enable = hardware_enable,
+	.hardware_disable = hardware_disable,
+
+	.vcpu_create = vmx_create_vcpu,
+	.vcpu_free = vmx_free_vcpu,
+	.vcpu_reset = vmx_vcpu_reset,
+
+	.prepare_guest_switch = vmx_save_host_state,
+	.vcpu_load = vmx_vcpu_load,
+	.vcpu_put = vmx_vcpu_put,
+	.vcpu_decache = vmx_vcpu_decache,
+
+	.set_guest_debug = set_guest_debug,
+	.guest_debug_pre = kvm_guest_debug_pre,
+	.get_msr = vmx_get_msr,
+	.set_msr = vmx_set_msr,
+	.get_segment_base = vmx_get_segment_base,
+	.get_segment = vmx_get_segment,
+	.set_segment = vmx_set_segment,
+	.get_cs_db_l_bits = vmx_get_cs_db_l_bits,
+	.decache_cr4_guest_bits = vmx_decache_cr4_guest_bits,
+	.set_cr0 = vmx_set_cr0,
+	.set_cr3 = vmx_set_cr3,
+	.set_cr4 = vmx_set_cr4,
+#ifdef CONFIG_X86_64
+	.set_efer = vmx_set_efer,
+#endif
+	.get_idt = vmx_get_idt,
+	.set_idt = vmx_set_idt,
+	.get_gdt = vmx_get_gdt,
+	.set_gdt = vmx_set_gdt,
+	.cache_regs = vcpu_load_rsp_rip,
+	.decache_regs = vcpu_put_rsp_rip,
+	.get_rflags = vmx_get_rflags,
+	.set_rflags = vmx_set_rflags,
+
+	.tlb_flush = vmx_flush_tlb,
+
+	.run = vmx_vcpu_run,
+	.handle_exit = kvm_handle_exit,
+	.skip_emulated_instruction = skip_emulated_instruction,
+	.patch_hypercall = vmx_patch_hypercall,
+	.get_irq = vmx_get_irq,
+	.set_irq = vmx_inject_irq,
+	.queue_exception = vmx_queue_exception,
+	.exception_injected = vmx_exception_injected,
+	.inject_pending_irq = vmx_intr_assist,
+	.inject_pending_vectors = do_interrupt_requests,
+
+	.set_tss_addr = vmx_set_tss_addr,
+};
+
+static int __init vmx_init(void)
+{
+	void *iova;
+	int r;
+
+	vmx_io_bitmap_a = alloc_page(GFP_KERNEL | __GFP_HIGHMEM);
+	if (!vmx_io_bitmap_a)
+		return -ENOMEM;
+
+	vmx_io_bitmap_b = alloc_page(GFP_KERNEL | __GFP_HIGHMEM);
+	if (!vmx_io_bitmap_b) {
+		r = -ENOMEM;
+		goto out;
+	}
+
+	/*
+	 * Allow direct access to the PC debug port (it is often used for I/O
+	 * delays, but the vmexits simply slow things down).
+	 */
+	iova = kmap(vmx_io_bitmap_a);
+	memset(iova, 0xff, PAGE_SIZE);
+	clear_bit(0x80, iova);
+	kunmap(vmx_io_bitmap_a);
+
+	iova = kmap(vmx_io_bitmap_b);
+	memset(iova, 0xff, PAGE_SIZE);
+	kunmap(vmx_io_bitmap_b);
+
+	r = kvm_init(&vmx_x86_ops, sizeof(struct vcpu_vmx), THIS_MODULE);
+	if (r)
+		goto out1;
+
+	if (bypass_guest_pf)
+		kvm_mmu_set_nonpresent_ptes(~0xffeull, 0ull);
+
+	return 0;
+
+out1:
+	__free_page(vmx_io_bitmap_b);
+out:
+	__free_page(vmx_io_bitmap_a);
+	return r;
+}
+
+static void __exit vmx_exit(void)
+{
+	__free_page(vmx_io_bitmap_b);
+	__free_page(vmx_io_bitmap_a);
+
+	kvm_exit();
+}
+
+module_init(vmx_init)
+module_exit(vmx_exit)
diff --git a/arch/x86/kvm/vmx.h b/arch/x86/kvm/vmx.h
new file mode 100644
index 000000000000..d52ae8d7303d
--- /dev/null
+++ b/arch/x86/kvm/vmx.h
@@ -0,0 +1,324 @@
+#ifndef VMX_H
+#define VMX_H
+
+/*
+ * vmx.h: VMX Architecture related definitions
+ * Copyright (c) 2004, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * A few random additions are:
+ * Copyright (C) 2006 Qumranet
+ *    Avi Kivity <avi@qumranet.com>
+ *    Yaniv Kamay <yaniv@qumranet.com>
+ *
+ */
+
+/*
+ * Definitions of Primary Processor-Based VM-Execution Controls.
+ */
+#define CPU_BASED_VIRTUAL_INTR_PENDING          0x00000004
+#define CPU_BASED_USE_TSC_OFFSETING             0x00000008
+#define CPU_BASED_HLT_EXITING                   0x00000080
+#define CPU_BASED_INVLPG_EXITING                0x00000200
+#define CPU_BASED_MWAIT_EXITING                 0x00000400
+#define CPU_BASED_RDPMC_EXITING                 0x00000800
+#define CPU_BASED_RDTSC_EXITING                 0x00001000
+#define CPU_BASED_CR8_LOAD_EXITING              0x00080000
+#define CPU_BASED_CR8_STORE_EXITING             0x00100000
+#define CPU_BASED_TPR_SHADOW                    0x00200000
+#define CPU_BASED_MOV_DR_EXITING                0x00800000
+#define CPU_BASED_UNCOND_IO_EXITING             0x01000000
+#define CPU_BASED_USE_IO_BITMAPS                0x02000000
+#define CPU_BASED_USE_MSR_BITMAPS               0x10000000
+#define CPU_BASED_MONITOR_EXITING               0x20000000
+#define CPU_BASED_PAUSE_EXITING                 0x40000000
+#define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS   0x80000000
+/*
+ * Definitions of Secondary Processor-Based VM-Execution Controls.
+ */
+#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001
+#define SECONDARY_EXEC_WBINVD_EXITING		0x00000040
+
+
+#define PIN_BASED_EXT_INTR_MASK                 0x00000001
+#define PIN_BASED_NMI_EXITING                   0x00000008
+#define PIN_BASED_VIRTUAL_NMIS                  0x00000020
+
+#define VM_EXIT_HOST_ADDR_SPACE_SIZE            0x00000200
+#define VM_EXIT_ACK_INTR_ON_EXIT                0x00008000
+
+#define VM_ENTRY_IA32E_MODE                     0x00000200
+#define VM_ENTRY_SMM                            0x00000400
+#define VM_ENTRY_DEACT_DUAL_MONITOR             0x00000800
+
+/* VMCS Encodings */
+enum vmcs_field {
+	GUEST_ES_SELECTOR               = 0x00000800,
+	GUEST_CS_SELECTOR               = 0x00000802,
+	GUEST_SS_SELECTOR               = 0x00000804,
+	GUEST_DS_SELECTOR               = 0x00000806,
+	GUEST_FS_SELECTOR               = 0x00000808,
+	GUEST_GS_SELECTOR               = 0x0000080a,
+	GUEST_LDTR_SELECTOR             = 0x0000080c,
+	GUEST_TR_SELECTOR               = 0x0000080e,
+	HOST_ES_SELECTOR                = 0x00000c00,
+	HOST_CS_SELECTOR                = 0x00000c02,
+	HOST_SS_SELECTOR                = 0x00000c04,
+	HOST_DS_SELECTOR                = 0x00000c06,
+	HOST_FS_SELECTOR                = 0x00000c08,
+	HOST_GS_SELECTOR                = 0x00000c0a,
+	HOST_TR_SELECTOR                = 0x00000c0c,
+	IO_BITMAP_A                     = 0x00002000,
+	IO_BITMAP_A_HIGH                = 0x00002001,
+	IO_BITMAP_B                     = 0x00002002,
+	IO_BITMAP_B_HIGH                = 0x00002003,
+	MSR_BITMAP                      = 0x00002004,
+	MSR_BITMAP_HIGH                 = 0x00002005,
+	VM_EXIT_MSR_STORE_ADDR          = 0x00002006,
+	VM_EXIT_MSR_STORE_ADDR_HIGH     = 0x00002007,
+	VM_EXIT_MSR_LOAD_ADDR           = 0x00002008,
+	VM_EXIT_MSR_LOAD_ADDR_HIGH      = 0x00002009,
+	VM_ENTRY_MSR_LOAD_ADDR          = 0x0000200a,
+	VM_ENTRY_MSR_LOAD_ADDR_HIGH     = 0x0000200b,
+	TSC_OFFSET                      = 0x00002010,
+	TSC_OFFSET_HIGH                 = 0x00002011,
+	VIRTUAL_APIC_PAGE_ADDR          = 0x00002012,
+	VIRTUAL_APIC_PAGE_ADDR_HIGH     = 0x00002013,
+	APIC_ACCESS_ADDR		= 0x00002014,
+	APIC_ACCESS_ADDR_HIGH		= 0x00002015,
+	VMCS_LINK_POINTER               = 0x00002800,
+	VMCS_LINK_POINTER_HIGH          = 0x00002801,
+	GUEST_IA32_DEBUGCTL             = 0x00002802,
+	GUEST_IA32_DEBUGCTL_HIGH        = 0x00002803,
+	PIN_BASED_VM_EXEC_CONTROL       = 0x00004000,
+	CPU_BASED_VM_EXEC_CONTROL       = 0x00004002,
+	EXCEPTION_BITMAP                = 0x00004004,
+	PAGE_FAULT_ERROR_CODE_MASK      = 0x00004006,
+	PAGE_FAULT_ERROR_CODE_MATCH     = 0x00004008,
+	CR3_TARGET_COUNT                = 0x0000400a,
+	VM_EXIT_CONTROLS                = 0x0000400c,
+	VM_EXIT_MSR_STORE_COUNT         = 0x0000400e,
+	VM_EXIT_MSR_LOAD_COUNT          = 0x00004010,
+	VM_ENTRY_CONTROLS               = 0x00004012,
+	VM_ENTRY_MSR_LOAD_COUNT         = 0x00004014,
+	VM_ENTRY_INTR_INFO_FIELD        = 0x00004016,
+	VM_ENTRY_EXCEPTION_ERROR_CODE   = 0x00004018,
+	VM_ENTRY_INSTRUCTION_LEN        = 0x0000401a,
+	TPR_THRESHOLD                   = 0x0000401c,
+	SECONDARY_VM_EXEC_CONTROL       = 0x0000401e,
+	VM_INSTRUCTION_ERROR            = 0x00004400,
+	VM_EXIT_REASON                  = 0x00004402,
+	VM_EXIT_INTR_INFO               = 0x00004404,
+	VM_EXIT_INTR_ERROR_CODE         = 0x00004406,
+	IDT_VECTORING_INFO_FIELD        = 0x00004408,
+	IDT_VECTORING_ERROR_CODE        = 0x0000440a,
+	VM_EXIT_INSTRUCTION_LEN         = 0x0000440c,
+	VMX_INSTRUCTION_INFO            = 0x0000440e,
+	GUEST_ES_LIMIT                  = 0x00004800,
+	GUEST_CS_LIMIT                  = 0x00004802,
+	GUEST_SS_LIMIT                  = 0x00004804,
+	GUEST_DS_LIMIT                  = 0x00004806,
+	GUEST_FS_LIMIT                  = 0x00004808,
+	GUEST_GS_LIMIT                  = 0x0000480a,
+	GUEST_LDTR_LIMIT                = 0x0000480c,
+	GUEST_TR_LIMIT                  = 0x0000480e,
+	GUEST_GDTR_LIMIT                = 0x00004810,
+	GUEST_IDTR_LIMIT                = 0x00004812,
+	GUEST_ES_AR_BYTES               = 0x00004814,
+	GUEST_CS_AR_BYTES               = 0x00004816,
+	GUEST_SS_AR_BYTES               = 0x00004818,
+	GUEST_DS_AR_BYTES               = 0x0000481a,
+	GUEST_FS_AR_BYTES               = 0x0000481c,
+	GUEST_GS_AR_BYTES               = 0x0000481e,
+	GUEST_LDTR_AR_BYTES             = 0x00004820,
+	GUEST_TR_AR_BYTES               = 0x00004822,
+	GUEST_INTERRUPTIBILITY_INFO     = 0x00004824,
+	GUEST_ACTIVITY_STATE            = 0X00004826,
+	GUEST_SYSENTER_CS               = 0x0000482A,
+	HOST_IA32_SYSENTER_CS           = 0x00004c00,
+	CR0_GUEST_HOST_MASK             = 0x00006000,
+	CR4_GUEST_HOST_MASK             = 0x00006002,
+	CR0_READ_SHADOW                 = 0x00006004,
+	CR4_READ_SHADOW                 = 0x00006006,
+	CR3_TARGET_VALUE0               = 0x00006008,
+	CR3_TARGET_VALUE1               = 0x0000600a,
+	CR3_TARGET_VALUE2               = 0x0000600c,
+	CR3_TARGET_VALUE3               = 0x0000600e,
+	EXIT_QUALIFICATION              = 0x00006400,
+	GUEST_LINEAR_ADDRESS            = 0x0000640a,
+	GUEST_CR0                       = 0x00006800,
+	GUEST_CR3                       = 0x00006802,
+	GUEST_CR4                       = 0x00006804,
+	GUEST_ES_BASE                   = 0x00006806,
+	GUEST_CS_BASE                   = 0x00006808,
+	GUEST_SS_BASE                   = 0x0000680a,
+	GUEST_DS_BASE                   = 0x0000680c,
+	GUEST_FS_BASE                   = 0x0000680e,
+	GUEST_GS_BASE                   = 0x00006810,
+	GUEST_LDTR_BASE                 = 0x00006812,
+	GUEST_TR_BASE                   = 0x00006814,
+	GUEST_GDTR_BASE                 = 0x00006816,
+	GUEST_IDTR_BASE                 = 0x00006818,
+	GUEST_DR7                       = 0x0000681a,
+	GUEST_RSP                       = 0x0000681c,
+	GUEST_RIP                       = 0x0000681e,
+	GUEST_RFLAGS                    = 0x00006820,
+	GUEST_PENDING_DBG_EXCEPTIONS    = 0x00006822,
+	GUEST_SYSENTER_ESP              = 0x00006824,
+	GUEST_SYSENTER_EIP              = 0x00006826,
+	HOST_CR0                        = 0x00006c00,
+	HOST_CR3                        = 0x00006c02,
+	HOST_CR4                        = 0x00006c04,
+	HOST_FS_BASE                    = 0x00006c06,
+	HOST_GS_BASE                    = 0x00006c08,
+	HOST_TR_BASE                    = 0x00006c0a,
+	HOST_GDTR_BASE                  = 0x00006c0c,
+	HOST_IDTR_BASE                  = 0x00006c0e,
+	HOST_IA32_SYSENTER_ESP          = 0x00006c10,
+	HOST_IA32_SYSENTER_EIP          = 0x00006c12,
+	HOST_RSP                        = 0x00006c14,
+	HOST_RIP                        = 0x00006c16,
+};
+
+#define VMX_EXIT_REASONS_FAILED_VMENTRY         0x80000000
+
+#define EXIT_REASON_EXCEPTION_NMI       0
+#define EXIT_REASON_EXTERNAL_INTERRUPT  1
+#define EXIT_REASON_TRIPLE_FAULT        2
+
+#define EXIT_REASON_PENDING_INTERRUPT   7
+
+#define EXIT_REASON_TASK_SWITCH         9
+#define EXIT_REASON_CPUID               10
+#define EXIT_REASON_HLT                 12
+#define EXIT_REASON_INVLPG              14
+#define EXIT_REASON_RDPMC               15
+#define EXIT_REASON_RDTSC               16
+#define EXIT_REASON_VMCALL              18
+#define EXIT_REASON_VMCLEAR             19
+#define EXIT_REASON_VMLAUNCH            20
+#define EXIT_REASON_VMPTRLD             21
+#define EXIT_REASON_VMPTRST             22
+#define EXIT_REASON_VMREAD              23
+#define EXIT_REASON_VMRESUME            24
+#define EXIT_REASON_VMWRITE             25
+#define EXIT_REASON_VMOFF               26
+#define EXIT_REASON_VMON                27
+#define EXIT_REASON_CR_ACCESS           28
+#define EXIT_REASON_DR_ACCESS           29
+#define EXIT_REASON_IO_INSTRUCTION      30
+#define EXIT_REASON_MSR_READ            31
+#define EXIT_REASON_MSR_WRITE           32
+#define EXIT_REASON_MWAIT_INSTRUCTION   36
+#define EXIT_REASON_TPR_BELOW_THRESHOLD 43
+#define EXIT_REASON_APIC_ACCESS         44
+#define EXIT_REASON_WBINVD		54
+
+/*
+ * Interruption-information format
+ */
+#define INTR_INFO_VECTOR_MASK           0xff            /* 7:0 */
+#define INTR_INFO_INTR_TYPE_MASK        0x700           /* 10:8 */
+#define INTR_INFO_DELIEVER_CODE_MASK    0x800           /* 11 */
+#define INTR_INFO_VALID_MASK            0x80000000      /* 31 */
+
+#define VECTORING_INFO_VECTOR_MASK           	INTR_INFO_VECTOR_MASK
+#define VECTORING_INFO_TYPE_MASK        	INTR_INFO_INTR_TYPE_MASK
+#define VECTORING_INFO_DELIEVER_CODE_MASK    	INTR_INFO_DELIEVER_CODE_MASK
+#define VECTORING_INFO_VALID_MASK       	INTR_INFO_VALID_MASK
+
+#define INTR_TYPE_EXT_INTR              (0 << 8) /* external interrupt */
+#define INTR_TYPE_EXCEPTION             (3 << 8) /* processor exception */
+#define INTR_TYPE_SOFT_INTR             (4 << 8) /* software interrupt */
+
+/*
+ * Exit Qualifications for MOV for Control Register Access
+ */
+#define CONTROL_REG_ACCESS_NUM          0x7     /* 2:0, number of control reg.*/
+#define CONTROL_REG_ACCESS_TYPE         0x30    /* 5:4, access type */
+#define CONTROL_REG_ACCESS_REG          0xf00   /* 10:8, general purpose reg. */
+#define LMSW_SOURCE_DATA_SHIFT 16
+#define LMSW_SOURCE_DATA  (0xFFFF << LMSW_SOURCE_DATA_SHIFT) /* 16:31 lmsw source */
+#define REG_EAX                         (0 << 8)
+#define REG_ECX                         (1 << 8)
+#define REG_EDX                         (2 << 8)
+#define REG_EBX                         (3 << 8)
+#define REG_ESP                         (4 << 8)
+#define REG_EBP                         (5 << 8)
+#define REG_ESI                         (6 << 8)
+#define REG_EDI                         (7 << 8)
+#define REG_R8                         (8 << 8)
+#define REG_R9                         (9 << 8)
+#define REG_R10                        (10 << 8)
+#define REG_R11                        (11 << 8)
+#define REG_R12                        (12 << 8)
+#define REG_R13                        (13 << 8)
+#define REG_R14                        (14 << 8)
+#define REG_R15                        (15 << 8)
+
+/*
+ * Exit Qualifications for MOV for Debug Register Access
+ */
+#define DEBUG_REG_ACCESS_NUM            0x7     /* 2:0, number of debug reg. */
+#define DEBUG_REG_ACCESS_TYPE           0x10    /* 4, direction of access */
+#define TYPE_MOV_TO_DR                  (0 << 4)
+#define TYPE_MOV_FROM_DR                (1 << 4)
+#define DEBUG_REG_ACCESS_REG            0xf00   /* 11:8, general purpose reg. */
+
+
+/* segment AR */
+#define SEGMENT_AR_L_MASK (1 << 13)
+
+#define AR_TYPE_ACCESSES_MASK 1
+#define AR_TYPE_READABLE_MASK (1 << 1)
+#define AR_TYPE_WRITEABLE_MASK (1 << 2)
+#define AR_TYPE_CODE_MASK (1 << 3)
+#define AR_TYPE_MASK 0x0f
+#define AR_TYPE_BUSY_64_TSS 11
+#define AR_TYPE_BUSY_32_TSS 11
+#define AR_TYPE_BUSY_16_TSS 3
+#define AR_TYPE_LDT 2
+
+#define AR_UNUSABLE_MASK (1 << 16)
+#define AR_S_MASK (1 << 4)
+#define AR_P_MASK (1 << 7)
+#define AR_L_MASK (1 << 13)
+#define AR_DB_MASK (1 << 14)
+#define AR_G_MASK (1 << 15)
+#define AR_DPL_SHIFT 5
+#define AR_DPL(ar) (((ar) >> AR_DPL_SHIFT) & 3)
+
+#define AR_RESERVD_MASK 0xfffe0f00
+
+#define MSR_IA32_VMX_BASIC                      0x480
+#define MSR_IA32_VMX_PINBASED_CTLS              0x481
+#define MSR_IA32_VMX_PROCBASED_CTLS             0x482
+#define MSR_IA32_VMX_EXIT_CTLS                  0x483
+#define MSR_IA32_VMX_ENTRY_CTLS                 0x484
+#define MSR_IA32_VMX_MISC                       0x485
+#define MSR_IA32_VMX_CR0_FIXED0                 0x486
+#define MSR_IA32_VMX_CR0_FIXED1                 0x487
+#define MSR_IA32_VMX_CR4_FIXED0                 0x488
+#define MSR_IA32_VMX_CR4_FIXED1                 0x489
+#define MSR_IA32_VMX_VMCS_ENUM                  0x48a
+#define MSR_IA32_VMX_PROCBASED_CTLS2            0x48b
+
+#define MSR_IA32_FEATURE_CONTROL                0x3a
+#define MSR_IA32_FEATURE_CONTROL_LOCKED         0x1
+#define MSR_IA32_FEATURE_CONTROL_VMXON_ENABLED  0x4
+
+#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT	9
+
+#endif
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
new file mode 100644
index 000000000000..5902c5cbc1bb
--- /dev/null
+++ b/arch/x86/kvm/x86.c
@@ -0,0 +1,3146 @@
+/*
+ * Kernel-based Virtual Machine driver for Linux
+ *
+ * derived from drivers/kvm/kvm_main.c
+ *
+ * Copyright (C) 2006 Qumranet, Inc.
+ *
+ * Authors:
+ *   Avi Kivity   <avi@qumranet.com>
+ *   Yaniv Kamay  <yaniv@qumranet.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include <linux/kvm_host.h>
+#include "segment_descriptor.h"
+#include "irq.h"
+#include "mmu.h"
+
+#include <linux/kvm.h>
+#include <linux/fs.h>
+#include <linux/vmalloc.h>
+#include <linux/module.h>
+#include <linux/mman.h>
+#include <linux/highmem.h>
+
+#include <asm/uaccess.h>
+#include <asm/msr.h>
+
+#define MAX_IO_MSRS 256
+#define CR0_RESERVED_BITS						\
+	(~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
+			  | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
+			  | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
+#define CR4_RESERVED_BITS						\
+	(~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
+			  | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE	\
+			  | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR	\
+			  | X86_CR4_OSXMMEXCPT | X86_CR4_VMXE))
+
+#define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
+#define EFER_RESERVED_BITS 0xfffffffffffff2fe
+
+#define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM
+#define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
+
+struct kvm_x86_ops *kvm_x86_ops;
+
+struct kvm_stats_debugfs_item debugfs_entries[] = {
+	{ "pf_fixed", VCPU_STAT(pf_fixed) },
+	{ "pf_guest", VCPU_STAT(pf_guest) },
+	{ "tlb_flush", VCPU_STAT(tlb_flush) },
+	{ "invlpg", VCPU_STAT(invlpg) },
+	{ "exits", VCPU_STAT(exits) },
+	{ "io_exits", VCPU_STAT(io_exits) },
+	{ "mmio_exits", VCPU_STAT(mmio_exits) },
+	{ "signal_exits", VCPU_STAT(signal_exits) },
+	{ "irq_window", VCPU_STAT(irq_window_exits) },
+	{ "halt_exits", VCPU_STAT(halt_exits) },
+	{ "halt_wakeup", VCPU_STAT(halt_wakeup) },
+	{ "request_irq", VCPU_STAT(request_irq_exits) },
+	{ "irq_exits", VCPU_STAT(irq_exits) },
+	{ "host_state_reload", VCPU_STAT(host_state_reload) },
+	{ "efer_reload", VCPU_STAT(efer_reload) },
+	{ "fpu_reload", VCPU_STAT(fpu_reload) },
+	{ "insn_emulation", VCPU_STAT(insn_emulation) },
+	{ "insn_emulation_fail", VCPU_STAT(insn_emulation_fail) },
+	{ "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped) },
+	{ "mmu_pte_write", VM_STAT(mmu_pte_write) },
+	{ "mmu_pte_updated", VM_STAT(mmu_pte_updated) },
+	{ "mmu_pde_zapped", VM_STAT(mmu_pde_zapped) },
+	{ "mmu_flooded", VM_STAT(mmu_flooded) },
+	{ "mmu_recycled", VM_STAT(mmu_recycled) },
+	{ "remote_tlb_flush", VM_STAT(remote_tlb_flush) },
+	{ NULL }
+};
+
+
+unsigned long segment_base(u16 selector)
+{
+	struct descriptor_table gdt;
+	struct segment_descriptor *d;
+	unsigned long table_base;
+	unsigned long v;
+
+	if (selector == 0)
+		return 0;
+
+	asm("sgdt %0" : "=m"(gdt));
+	table_base = gdt.base;
+
+	if (selector & 4) {           /* from ldt */
+		u16 ldt_selector;
+
+		asm("sldt %0" : "=g"(ldt_selector));
+		table_base = segment_base(ldt_selector);
+	}
+	d = (struct segment_descriptor *)(table_base + (selector & ~7));
+	v = d->base_low | ((unsigned long)d->base_mid << 16) |
+		((unsigned long)d->base_high << 24);
+#ifdef CONFIG_X86_64
+	if (d->system == 0 && (d->type == 2 || d->type == 9 || d->type == 11))
+		v |= ((unsigned long) \
+		      ((struct segment_descriptor_64 *)d)->base_higher) << 32;
+#endif
+	return v;
+}
+EXPORT_SYMBOL_GPL(segment_base);
+
+u64 kvm_get_apic_base(struct kvm_vcpu *vcpu)
+{
+	if (irqchip_in_kernel(vcpu->kvm))
+		return vcpu->arch.apic_base;
+	else
+		return vcpu->arch.apic_base;
+}
+EXPORT_SYMBOL_GPL(kvm_get_apic_base);
+
+void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data)
+{
+	/* TODO: reserve bits check */
+	if (irqchip_in_kernel(vcpu->kvm))
+		kvm_lapic_set_base(vcpu, data);
+	else
+		vcpu->arch.apic_base = data;
+}
+EXPORT_SYMBOL_GPL(kvm_set_apic_base);
+
+void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr)
+{
+	WARN_ON(vcpu->arch.exception.pending);
+	vcpu->arch.exception.pending = true;
+	vcpu->arch.exception.has_error_code = false;
+	vcpu->arch.exception.nr = nr;
+}
+EXPORT_SYMBOL_GPL(kvm_queue_exception);
+
+void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long addr,
+			   u32 error_code)
+{
+	++vcpu->stat.pf_guest;
+	if (vcpu->arch.exception.pending && vcpu->arch.exception.nr == PF_VECTOR) {
+		printk(KERN_DEBUG "kvm: inject_page_fault:"
+		       " double fault 0x%lx\n", addr);
+		vcpu->arch.exception.nr = DF_VECTOR;
+		vcpu->arch.exception.error_code = 0;
+		return;
+	}
+	vcpu->arch.cr2 = addr;
+	kvm_queue_exception_e(vcpu, PF_VECTOR, error_code);
+}
+
+void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code)
+{
+	WARN_ON(vcpu->arch.exception.pending);
+	vcpu->arch.exception.pending = true;
+	vcpu->arch.exception.has_error_code = true;
+	vcpu->arch.exception.nr = nr;
+	vcpu->arch.exception.error_code = error_code;
+}
+EXPORT_SYMBOL_GPL(kvm_queue_exception_e);
+
+static void __queue_exception(struct kvm_vcpu *vcpu)
+{
+	kvm_x86_ops->queue_exception(vcpu, vcpu->arch.exception.nr,
+				     vcpu->arch.exception.has_error_code,
+				     vcpu->arch.exception.error_code);
+}
+
+/*
+ * Load the pae pdptrs.  Return true is they are all valid.
+ */
+int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3)
+{
+	gfn_t pdpt_gfn = cr3 >> PAGE_SHIFT;
+	unsigned offset = ((cr3 & (PAGE_SIZE-1)) >> 5) << 2;
+	int i;
+	int ret;
+	u64 pdpte[ARRAY_SIZE(vcpu->arch.pdptrs)];
+
+	mutex_lock(&vcpu->kvm->lock);
+	ret = kvm_read_guest_page(vcpu->kvm, pdpt_gfn, pdpte,
+				  offset * sizeof(u64), sizeof(pdpte));
+	if (ret < 0) {
+		ret = 0;
+		goto out;
+	}
+	for (i = 0; i < ARRAY_SIZE(pdpte); ++i) {
+		if ((pdpte[i] & 1) && (pdpte[i] & 0xfffffff0000001e6ull)) {
+			ret = 0;
+			goto out;
+		}
+	}
+	ret = 1;
+
+	memcpy(vcpu->arch.pdptrs, pdpte, sizeof(vcpu->arch.pdptrs));
+out:
+	mutex_unlock(&vcpu->kvm->lock);
+
+	return ret;
+}
+
+static bool pdptrs_changed(struct kvm_vcpu *vcpu)
+{
+	u64 pdpte[ARRAY_SIZE(vcpu->arch.pdptrs)];
+	bool changed = true;
+	int r;
+
+	if (is_long_mode(vcpu) || !is_pae(vcpu))
+		return false;
+
+	mutex_lock(&vcpu->kvm->lock);
+	r = kvm_read_guest(vcpu->kvm, vcpu->arch.cr3 & ~31u, pdpte, sizeof(pdpte));
+	if (r < 0)
+		goto out;
+	changed = memcmp(pdpte, vcpu->arch.pdptrs, sizeof(pdpte)) != 0;
+out:
+	mutex_unlock(&vcpu->kvm->lock);
+
+	return changed;
+}
+
+void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
+{
+	if (cr0 & CR0_RESERVED_BITS) {
+		printk(KERN_DEBUG "set_cr0: 0x%lx #GP, reserved bits 0x%lx\n",
+		       cr0, vcpu->arch.cr0);
+		kvm_inject_gp(vcpu, 0);
+		return;
+	}
+
+	if ((cr0 & X86_CR0_NW) && !(cr0 & X86_CR0_CD)) {
+		printk(KERN_DEBUG "set_cr0: #GP, CD == 0 && NW == 1\n");
+		kvm_inject_gp(vcpu, 0);
+		return;
+	}
+
+	if ((cr0 & X86_CR0_PG) && !(cr0 & X86_CR0_PE)) {
+		printk(KERN_DEBUG "set_cr0: #GP, set PG flag "
+		       "and a clear PE flag\n");
+		kvm_inject_gp(vcpu, 0);
+		return;
+	}
+
+	if (!is_paging(vcpu) && (cr0 & X86_CR0_PG)) {
+#ifdef CONFIG_X86_64
+		if ((vcpu->arch.shadow_efer & EFER_LME)) {
+			int cs_db, cs_l;
+
+			if (!is_pae(vcpu)) {
+				printk(KERN_DEBUG "set_cr0: #GP, start paging "
+				       "in long mode while PAE is disabled\n");
+				kvm_inject_gp(vcpu, 0);
+				return;
+			}
+			kvm_x86_ops->get_cs_db_l_bits(vcpu, &cs_db, &cs_l);
+			if (cs_l) {
+				printk(KERN_DEBUG "set_cr0: #GP, start paging "
+				       "in long mode while CS.L == 1\n");
+				kvm_inject_gp(vcpu, 0);
+				return;
+
+			}
+		} else
+#endif
+		if (is_pae(vcpu) && !load_pdptrs(vcpu, vcpu->arch.cr3)) {
+			printk(KERN_DEBUG "set_cr0: #GP, pdptrs "
+			       "reserved bits\n");
+			kvm_inject_gp(vcpu, 0);
+			return;
+		}
+
+	}
+
+	kvm_x86_ops->set_cr0(vcpu, cr0);
+	vcpu->arch.cr0 = cr0;
+
+	mutex_lock(&vcpu->kvm->lock);
+	kvm_mmu_reset_context(vcpu);
+	mutex_unlock(&vcpu->kvm->lock);
+	return;
+}
+EXPORT_SYMBOL_GPL(set_cr0);
+
+void lmsw(struct kvm_vcpu *vcpu, unsigned long msw)
+{
+	set_cr0(vcpu, (vcpu->arch.cr0 & ~0x0ful) | (msw & 0x0f));
+}
+EXPORT_SYMBOL_GPL(lmsw);
+
+void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
+{
+	if (cr4 & CR4_RESERVED_BITS) {
+		printk(KERN_DEBUG "set_cr4: #GP, reserved bits\n");
+		kvm_inject_gp(vcpu, 0);
+		return;
+	}
+
+	if (is_long_mode(vcpu)) {
+		if (!(cr4 & X86_CR4_PAE)) {
+			printk(KERN_DEBUG "set_cr4: #GP, clearing PAE while "
+			       "in long mode\n");
+			kvm_inject_gp(vcpu, 0);
+			return;
+		}
+	} else if (is_paging(vcpu) && !is_pae(vcpu) && (cr4 & X86_CR4_PAE)
+		   && !load_pdptrs(vcpu, vcpu->arch.cr3)) {
+		printk(KERN_DEBUG "set_cr4: #GP, pdptrs reserved bits\n");
+		kvm_inject_gp(vcpu, 0);
+		return;
+	}
+
+	if (cr4 & X86_CR4_VMXE) {
+		printk(KERN_DEBUG "set_cr4: #GP, setting VMXE\n");
+		kvm_inject_gp(vcpu, 0);
+		return;
+	}
+	kvm_x86_ops->set_cr4(vcpu, cr4);
+	vcpu->arch.cr4 = cr4;
+	mutex_lock(&vcpu->kvm->lock);
+	kvm_mmu_reset_context(vcpu);
+	mutex_unlock(&vcpu->kvm->lock);
+}
+EXPORT_SYMBOL_GPL(set_cr4);
+
+void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
+{
+	if (cr3 == vcpu->arch.cr3 && !pdptrs_changed(vcpu)) {
+		kvm_mmu_flush_tlb(vcpu);
+		return;
+	}
+
+	if (is_long_mode(vcpu)) {
+		if (cr3 & CR3_L_MODE_RESERVED_BITS) {
+			printk(KERN_DEBUG "set_cr3: #GP, reserved bits\n");
+			kvm_inject_gp(vcpu, 0);
+			return;
+		}
+	} else {
+		if (is_pae(vcpu)) {
+			if (cr3 & CR3_PAE_RESERVED_BITS) {
+				printk(KERN_DEBUG
+				       "set_cr3: #GP, reserved bits\n");
+				kvm_inject_gp(vcpu, 0);
+				return;
+			}
+			if (is_paging(vcpu) && !load_pdptrs(vcpu, cr3)) {
+				printk(KERN_DEBUG "set_cr3: #GP, pdptrs "
+				       "reserved bits\n");
+				kvm_inject_gp(vcpu, 0);
+				return;
+			}
+		}
+		/*
+		 * We don't check reserved bits in nonpae mode, because
+		 * this isn't enforced, and VMware depends on this.
+		 */
+	}
+
+	mutex_lock(&vcpu->kvm->lock);
+	/*
+	 * Does the new cr3 value map to physical memory? (Note, we
+	 * catch an invalid cr3 even in real-mode, because it would
+	 * cause trouble later on when we turn on paging anyway.)
+	 *
+	 * A real CPU would silently accept an invalid cr3 and would
+	 * attempt to use it - with largely undefined (and often hard
+	 * to debug) behavior on the guest side.
+	 */
+	if (unlikely(!gfn_to_memslot(vcpu->kvm, cr3 >> PAGE_SHIFT)))
+		kvm_inject_gp(vcpu, 0);
+	else {
+		vcpu->arch.cr3 = cr3;
+		vcpu->arch.mmu.new_cr3(vcpu);
+	}
+	mutex_unlock(&vcpu->kvm->lock);
+}
+EXPORT_SYMBOL_GPL(set_cr3);
+
+void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8)
+{
+	if (cr8 & CR8_RESERVED_BITS) {
+		printk(KERN_DEBUG "set_cr8: #GP, reserved bits 0x%lx\n", cr8);
+		kvm_inject_gp(vcpu, 0);
+		return;
+	}
+	if (irqchip_in_kernel(vcpu->kvm))
+		kvm_lapic_set_tpr(vcpu, cr8);
+	else
+		vcpu->arch.cr8 = cr8;
+}
+EXPORT_SYMBOL_GPL(set_cr8);
+
+unsigned long get_cr8(struct kvm_vcpu *vcpu)
+{
+	if (irqchip_in_kernel(vcpu->kvm))
+		return kvm_lapic_get_cr8(vcpu);
+	else
+		return vcpu->arch.cr8;
+}
+EXPORT_SYMBOL_GPL(get_cr8);
+
+/*
+ * List of msr numbers which we expose to userspace through KVM_GET_MSRS
+ * and KVM_SET_MSRS, and KVM_GET_MSR_INDEX_LIST.
+ *
+ * This list is modified at module load time to reflect the
+ * capabilities of the host cpu.
+ */
+static u32 msrs_to_save[] = {
+	MSR_IA32_SYSENTER_CS, MSR_IA32_SYSENTER_ESP, MSR_IA32_SYSENTER_EIP,
+	MSR_K6_STAR,
+#ifdef CONFIG_X86_64
+	MSR_CSTAR, MSR_KERNEL_GS_BASE, MSR_SYSCALL_MASK, MSR_LSTAR,
+#endif
+	MSR_IA32_TIME_STAMP_COUNTER,
+};
+
+static unsigned num_msrs_to_save;
+
+static u32 emulated_msrs[] = {
+	MSR_IA32_MISC_ENABLE,
+};
+
+#ifdef CONFIG_X86_64
+
+static void set_efer(struct kvm_vcpu *vcpu, u64 efer)
+{
+	if (efer & EFER_RESERVED_BITS) {
+		printk(KERN_DEBUG "set_efer: 0x%llx #GP, reserved bits\n",
+		       efer);
+		kvm_inject_gp(vcpu, 0);
+		return;
+	}
+
+	if (is_paging(vcpu)
+	    && (vcpu->arch.shadow_efer & EFER_LME) != (efer & EFER_LME)) {
+		printk(KERN_DEBUG "set_efer: #GP, change LME while paging\n");
+		kvm_inject_gp(vcpu, 0);
+		return;
+	}
+
+	kvm_x86_ops->set_efer(vcpu, efer);
+
+	efer &= ~EFER_LMA;
+	efer |= vcpu->arch.shadow_efer & EFER_LMA;
+
+	vcpu->arch.shadow_efer = efer;
+}
+
+#endif
+
+/*
+ * Writes msr value into into the appropriate "register".
+ * Returns 0 on success, non-0 otherwise.
+ * Assumes vcpu_load() was already called.
+ */
+int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
+{
+	return kvm_x86_ops->set_msr(vcpu, msr_index, data);
+}
+
+/*
+ * Adapt set_msr() to msr_io()'s calling convention
+ */
+static int do_set_msr(struct kvm_vcpu *vcpu, unsigned index, u64 *data)
+{
+	return kvm_set_msr(vcpu, index, *data);
+}
+
+
+int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
+{
+	switch (msr) {
+#ifdef CONFIG_X86_64
+	case MSR_EFER:
+		set_efer(vcpu, data);
+		break;
+#endif
+	case MSR_IA32_MC0_STATUS:
+		pr_unimpl(vcpu, "%s: MSR_IA32_MC0_STATUS 0x%llx, nop\n",
+		       __FUNCTION__, data);
+		break;
+	case MSR_IA32_MCG_STATUS:
+		pr_unimpl(vcpu, "%s: MSR_IA32_MCG_STATUS 0x%llx, nop\n",
+			__FUNCTION__, data);
+		break;
+	case MSR_IA32_UCODE_REV:
+	case MSR_IA32_UCODE_WRITE:
+	case 0x200 ... 0x2ff: /* MTRRs */
+		break;
+	case MSR_IA32_APICBASE:
+		kvm_set_apic_base(vcpu, data);
+		break;
+	case MSR_IA32_MISC_ENABLE:
+		vcpu->arch.ia32_misc_enable_msr = data;
+		break;
+	default:
+		pr_unimpl(vcpu, "unhandled wrmsr: 0x%x\n", msr);
+		return 1;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(kvm_set_msr_common);
+
+
+/*
+ * Reads an msr value (of 'msr_index') into 'pdata'.
+ * Returns 0 on success, non-0 otherwise.
+ * Assumes vcpu_load() was already called.
+ */
+int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
+{
+	return kvm_x86_ops->get_msr(vcpu, msr_index, pdata);
+}
+
+int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
+{
+	u64 data;
+
+	switch (msr) {
+	case 0xc0010010: /* SYSCFG */
+	case 0xc0010015: /* HWCR */
+	case MSR_IA32_PLATFORM_ID:
+	case MSR_IA32_P5_MC_ADDR:
+	case MSR_IA32_P5_MC_TYPE:
+	case MSR_IA32_MC0_CTL:
+	case MSR_IA32_MCG_STATUS:
+	case MSR_IA32_MCG_CAP:
+	case MSR_IA32_MC0_MISC:
+	case MSR_IA32_MC0_MISC+4:
+	case MSR_IA32_MC0_MISC+8:
+	case MSR_IA32_MC0_MISC+12:
+	case MSR_IA32_MC0_MISC+16:
+	case MSR_IA32_UCODE_REV:
+	case MSR_IA32_PERF_STATUS:
+	case MSR_IA32_EBL_CR_POWERON:
+		/* MTRR registers */
+	case 0xfe:
+	case 0x200 ... 0x2ff:
+		data = 0;
+		break;
+	case 0xcd: /* fsb frequency */
+		data = 3;
+		break;
+	case MSR_IA32_APICBASE:
+		data = kvm_get_apic_base(vcpu);
+		break;
+	case MSR_IA32_MISC_ENABLE:
+		data = vcpu->arch.ia32_misc_enable_msr;
+		break;
+#ifdef CONFIG_X86_64
+	case MSR_EFER:
+		data = vcpu->arch.shadow_efer;
+		break;
+#endif
+	default:
+		pr_unimpl(vcpu, "unhandled rdmsr: 0x%x\n", msr);
+		return 1;
+	}
+	*pdata = data;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(kvm_get_msr_common);
+
+/*
+ * Read or write a bunch of msrs. All parameters are kernel addresses.
+ *
+ * @return number of msrs set successfully.
+ */
+static int __msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs *msrs,
+		    struct kvm_msr_entry *entries,
+		    int (*do_msr)(struct kvm_vcpu *vcpu,
+				  unsigned index, u64 *data))
+{
+	int i;
+
+	vcpu_load(vcpu);
+
+	for (i = 0; i < msrs->nmsrs; ++i)
+		if (do_msr(vcpu, entries[i].index, &entries[i].data))
+			break;
+
+	vcpu_put(vcpu);
+
+	return i;
+}
+
+/*
+ * Read or write a bunch of msrs. Parameters are user addresses.
+ *
+ * @return number of msrs set successfully.
+ */
+static int msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs __user *user_msrs,
+		  int (*do_msr)(struct kvm_vcpu *vcpu,
+				unsigned index, u64 *data),
+		  int writeback)
+{
+	struct kvm_msrs msrs;
+	struct kvm_msr_entry *entries;
+	int r, n;
+	unsigned size;
+
+	r = -EFAULT;
+	if (copy_from_user(&msrs, user_msrs, sizeof msrs))
+		goto out;
+
+	r = -E2BIG;
+	if (msrs.nmsrs >= MAX_IO_MSRS)
+		goto out;
+
+	r = -ENOMEM;
+	size = sizeof(struct kvm_msr_entry) * msrs.nmsrs;
+	entries = vmalloc(size);
+	if (!entries)
+		goto out;
+
+	r = -EFAULT;
+	if (copy_from_user(entries, user_msrs->entries, size))
+		goto out_free;
+
+	r = n = __msr_io(vcpu, &msrs, entries, do_msr);
+	if (r < 0)
+		goto out_free;
+
+	r = -EFAULT;
+	if (writeback && copy_to_user(user_msrs->entries, entries, size))
+		goto out_free;
+
+	r = n;
+
+out_free:
+	vfree(entries);
+out:
+	return r;
+}
+
+/*
+ * Make sure that a cpu that is being hot-unplugged does not have any vcpus
+ * cached on it.
+ */
+void decache_vcpus_on_cpu(int cpu)
+{
+	struct kvm *vm;
+	struct kvm_vcpu *vcpu;
+	int i;
+
+	spin_lock(&kvm_lock);
+	list_for_each_entry(vm, &vm_list, vm_list)
+		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+			vcpu = vm->vcpus[i];
+			if (!vcpu)
+				continue;
+			/*
+			 * If the vcpu is locked, then it is running on some
+			 * other cpu and therefore it is not cached on the
+			 * cpu in question.
+			 *
+			 * If it's not locked, check the last cpu it executed
+			 * on.
+			 */
+			if (mutex_trylock(&vcpu->mutex)) {
+				if (vcpu->cpu == cpu) {
+					kvm_x86_ops->vcpu_decache(vcpu);
+					vcpu->cpu = -1;
+				}
+				mutex_unlock(&vcpu->mutex);
+			}
+		}
+	spin_unlock(&kvm_lock);
+}
+
+int kvm_dev_ioctl_check_extension(long ext)
+{
+	int r;
+
+	switch (ext) {
+	case KVM_CAP_IRQCHIP:
+	case KVM_CAP_HLT:
+	case KVM_CAP_MMU_SHADOW_CACHE_CONTROL:
+	case KVM_CAP_USER_MEMORY:
+	case KVM_CAP_SET_TSS_ADDR:
+	case KVM_CAP_EXT_CPUID:
+		r = 1;
+		break;
+	default:
+		r = 0;
+		break;
+	}
+	return r;
+
+}
+
+long kvm_arch_dev_ioctl(struct file *filp,
+			unsigned int ioctl, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	long r;
+
+	switch (ioctl) {
+	case KVM_GET_MSR_INDEX_LIST: {
+		struct kvm_msr_list __user *user_msr_list = argp;
+		struct kvm_msr_list msr_list;
+		unsigned n;
+
+		r = -EFAULT;
+		if (copy_from_user(&msr_list, user_msr_list, sizeof msr_list))
+			goto out;
+		n = msr_list.nmsrs;
+		msr_list.nmsrs = num_msrs_to_save + ARRAY_SIZE(emulated_msrs);
+		if (copy_to_user(user_msr_list, &msr_list, sizeof msr_list))
+			goto out;
+		r = -E2BIG;
+		if (n < num_msrs_to_save)
+			goto out;
+		r = -EFAULT;
+		if (copy_to_user(user_msr_list->indices, &msrs_to_save,
+				 num_msrs_to_save * sizeof(u32)))
+			goto out;
+		if (copy_to_user(user_msr_list->indices
+				 + num_msrs_to_save * sizeof(u32),
+				 &emulated_msrs,
+				 ARRAY_SIZE(emulated_msrs) * sizeof(u32)))
+			goto out;
+		r = 0;
+		break;
+	}
+	default:
+		r = -EINVAL;
+	}
+out:
+	return r;
+}
+
+void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+{
+	kvm_x86_ops->vcpu_load(vcpu, cpu);
+}
+
+void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
+{
+	kvm_x86_ops->vcpu_put(vcpu);
+	kvm_put_guest_fpu(vcpu);
+}
+
+static int is_efer_nx(void)
+{
+	u64 efer;
+
+	rdmsrl(MSR_EFER, efer);
+	return efer & EFER_NX;
+}
+
+static void cpuid_fix_nx_cap(struct kvm_vcpu *vcpu)
+{
+	int i;
+	struct kvm_cpuid_entry2 *e, *entry;
+
+	entry = NULL;
+	for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
+		e = &vcpu->arch.cpuid_entries[i];
+		if (e->function == 0x80000001) {
+			entry = e;
+			break;
+		}
+	}
+	if (entry && (entry->edx & (1 << 20)) && !is_efer_nx()) {
+		entry->edx &= ~(1 << 20);
+		printk(KERN_INFO "kvm: guest NX capability removed\n");
+	}
+}
+
+/* when an old userspace process fills a new kernel module */
+static int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
+				    struct kvm_cpuid *cpuid,
+				    struct kvm_cpuid_entry __user *entries)
+{
+	int r, i;
+	struct kvm_cpuid_entry *cpuid_entries;
+
+	r = -E2BIG;
+	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
+		goto out;
+	r = -ENOMEM;
+	cpuid_entries = vmalloc(sizeof(struct kvm_cpuid_entry) * cpuid->nent);
+	if (!cpuid_entries)
+		goto out;
+	r = -EFAULT;
+	if (copy_from_user(cpuid_entries, entries,
+			   cpuid->nent * sizeof(struct kvm_cpuid_entry)))
+		goto out_free;
+	for (i = 0; i < cpuid->nent; i++) {
+		vcpu->arch.cpuid_entries[i].function = cpuid_entries[i].function;
+		vcpu->arch.cpuid_entries[i].eax = cpuid_entries[i].eax;
+		vcpu->arch.cpuid_entries[i].ebx = cpuid_entries[i].ebx;
+		vcpu->arch.cpuid_entries[i].ecx = cpuid_entries[i].ecx;
+		vcpu->arch.cpuid_entries[i].edx = cpuid_entries[i].edx;
+		vcpu->arch.cpuid_entries[i].index = 0;
+		vcpu->arch.cpuid_entries[i].flags = 0;
+		vcpu->arch.cpuid_entries[i].padding[0] = 0;
+		vcpu->arch.cpuid_entries[i].padding[1] = 0;
+		vcpu->arch.cpuid_entries[i].padding[2] = 0;
+	}
+	vcpu->arch.cpuid_nent = cpuid->nent;
+	cpuid_fix_nx_cap(vcpu);
+	r = 0;
+
+out_free:
+	vfree(cpuid_entries);
+out:
+	return r;
+}
+
+static int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
+				    struct kvm_cpuid2 *cpuid,
+				    struct kvm_cpuid_entry2 __user *entries)
+{
+	int r;
+
+	r = -E2BIG;
+	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
+		goto out;
+	r = -EFAULT;
+	if (copy_from_user(&vcpu->arch.cpuid_entries, entries,
+			   cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
+		goto out;
+	vcpu->arch.cpuid_nent = cpuid->nent;
+	return 0;
+
+out:
+	return r;
+}
+
+static int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
+				    struct kvm_cpuid2 *cpuid,
+				    struct kvm_cpuid_entry2 __user *entries)
+{
+	int r;
+
+	r = -E2BIG;
+	if (cpuid->nent < vcpu->arch.cpuid_nent)
+		goto out;
+	r = -EFAULT;
+	if (copy_to_user(entries, &vcpu->arch.cpuid_entries,
+			   vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
+		goto out;
+	return 0;
+
+out:
+	cpuid->nent = vcpu->arch.cpuid_nent;
+	return r;
+}
+
+static inline u32 bit(int bitno)
+{
+	return 1 << (bitno & 31);
+}
+
+static void do_cpuid_1_ent(struct kvm_cpuid_entry2 *entry, u32 function,
+			  u32 index)
+{
+	entry->function = function;
+	entry->index = index;
+	cpuid_count(entry->function, entry->index,
+		&entry->eax, &entry->ebx, &entry->ecx, &entry->edx);
+	entry->flags = 0;
+}
+
+static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
+			 u32 index, int *nent, int maxnent)
+{
+	const u32 kvm_supported_word0_x86_features = bit(X86_FEATURE_FPU) |
+		bit(X86_FEATURE_VME) | bit(X86_FEATURE_DE) |
+		bit(X86_FEATURE_PSE) | bit(X86_FEATURE_TSC) |
+		bit(X86_FEATURE_MSR) | bit(X86_FEATURE_PAE) |
+		bit(X86_FEATURE_CX8) | bit(X86_FEATURE_APIC) |
+		bit(X86_FEATURE_SEP) | bit(X86_FEATURE_PGE) |
+		bit(X86_FEATURE_CMOV) | bit(X86_FEATURE_PSE36) |
+		bit(X86_FEATURE_CLFLSH) | bit(X86_FEATURE_MMX) |
+		bit(X86_FEATURE_FXSR) | bit(X86_FEATURE_XMM) |
+		bit(X86_FEATURE_XMM2) | bit(X86_FEATURE_SELFSNOOP);
+	const u32 kvm_supported_word1_x86_features = bit(X86_FEATURE_FPU) |
+		bit(X86_FEATURE_VME) | bit(X86_FEATURE_DE) |
+		bit(X86_FEATURE_PSE) | bit(X86_FEATURE_TSC) |
+		bit(X86_FEATURE_MSR) | bit(X86_FEATURE_PAE) |
+		bit(X86_FEATURE_CX8) | bit(X86_FEATURE_APIC) |
+		bit(X86_FEATURE_PGE) |
+		bit(X86_FEATURE_CMOV) | bit(X86_FEATURE_PSE36) |
+		bit(X86_FEATURE_MMX) | bit(X86_FEATURE_FXSR) |
+		bit(X86_FEATURE_SYSCALL) |
+		(bit(X86_FEATURE_NX) && is_efer_nx()) |
+#ifdef CONFIG_X86_64
+		bit(X86_FEATURE_LM) |
+#endif
+		bit(X86_FEATURE_MMXEXT) |
+		bit(X86_FEATURE_3DNOWEXT) |
+		bit(X86_FEATURE_3DNOW);
+	const u32 kvm_supported_word3_x86_features =
+		bit(X86_FEATURE_XMM3) | bit(X86_FEATURE_CX16);
+	const u32 kvm_supported_word6_x86_features =
+		bit(X86_FEATURE_LAHF_LM) | bit(X86_FEATURE_CMP_LEGACY);
+
+	/* all func 2 cpuid_count() should be called on the same cpu */
+	get_cpu();
+	do_cpuid_1_ent(entry, function, index);
+	++*nent;
+
+	switch (function) {
+	case 0:
+		entry->eax = min(entry->eax, (u32)0xb);
+		break;
+	case 1:
+		entry->edx &= kvm_supported_word0_x86_features;
+		entry->ecx &= kvm_supported_word3_x86_features;
+		break;
+	/* function 2 entries are STATEFUL. That is, repeated cpuid commands
+	 * may return different values. This forces us to get_cpu() before
+	 * issuing the first command, and also to emulate this annoying behavior
+	 * in kvm_emulate_cpuid() using KVM_CPUID_FLAG_STATE_READ_NEXT */
+	case 2: {
+		int t, times = entry->eax & 0xff;
+
+		entry->flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
+		for (t = 1; t < times && *nent < maxnent; ++t) {
+			do_cpuid_1_ent(&entry[t], function, 0);
+			entry[t].flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
+			++*nent;
+		}
+		break;
+	}
+	/* function 4 and 0xb have additional index. */
+	case 4: {
+		int index, cache_type;
+
+		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
+		/* read more entries until cache_type is zero */
+		for (index = 1; *nent < maxnent; ++index) {
+			cache_type = entry[index - 1].eax & 0x1f;
+			if (!cache_type)
+				break;
+			do_cpuid_1_ent(&entry[index], function, index);
+			entry[index].flags |=
+			       KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
+			++*nent;
+		}
+		break;
+	}
+	case 0xb: {
+		int index, level_type;
+
+		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
+		/* read more entries until level_type is zero */
+		for (index = 1; *nent < maxnent; ++index) {
+			level_type = entry[index - 1].ecx & 0xff;
+			if (!level_type)
+				break;
+			do_cpuid_1_ent(&entry[index], function, index);
+			entry[index].flags |=
+			       KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
+			++*nent;
+		}
+		break;
+	}
+	case 0x80000000:
+		entry->eax = min(entry->eax, 0x8000001a);
+		break;
+	case 0x80000001:
+		entry->edx &= kvm_supported_word1_x86_features;
+		entry->ecx &= kvm_supported_word6_x86_features;
+		break;
+	}
+	put_cpu();
+}
+
+static int kvm_vm_ioctl_get_supported_cpuid(struct kvm *kvm,
+				    struct kvm_cpuid2 *cpuid,
+				    struct kvm_cpuid_entry2 __user *entries)
+{
+	struct kvm_cpuid_entry2 *cpuid_entries;
+	int limit, nent = 0, r = -E2BIG;
+	u32 func;
+
+	if (cpuid->nent < 1)
+		goto out;
+	r = -ENOMEM;
+	cpuid_entries = vmalloc(sizeof(struct kvm_cpuid_entry2) * cpuid->nent);
+	if (!cpuid_entries)
+		goto out;
+
+	do_cpuid_ent(&cpuid_entries[0], 0, 0, &nent, cpuid->nent);
+	limit = cpuid_entries[0].eax;
+	for (func = 1; func <= limit && nent < cpuid->nent; ++func)
+		do_cpuid_ent(&cpuid_entries[nent], func, 0,
+				&nent, cpuid->nent);
+	r = -E2BIG;
+	if (nent >= cpuid->nent)
+		goto out_free;
+
+	do_cpuid_ent(&cpuid_entries[nent], 0x80000000, 0, &nent, cpuid->nent);
+	limit = cpuid_entries[nent - 1].eax;
+	for (func = 0x80000001; func <= limit && nent < cpuid->nent; ++func)
+		do_cpuid_ent(&cpuid_entries[nent], func, 0,
+			       &nent, cpuid->nent);
+	r = -EFAULT;
+	if (copy_to_user(entries, cpuid_entries,
+			nent * sizeof(struct kvm_cpuid_entry2)))
+		goto out_free;
+	cpuid->nent = nent;
+	r = 0;
+
+out_free:
+	vfree(cpuid_entries);
+out:
+	return r;
+}
+
+static int kvm_vcpu_ioctl_get_lapic(struct kvm_vcpu *vcpu,
+				    struct kvm_lapic_state *s)
+{
+	vcpu_load(vcpu);
+	memcpy(s->regs, vcpu->arch.apic->regs, sizeof *s);
+	vcpu_put(vcpu);
+
+	return 0;
+}
+
+static int kvm_vcpu_ioctl_set_lapic(struct kvm_vcpu *vcpu,
+				    struct kvm_lapic_state *s)
+{
+	vcpu_load(vcpu);
+	memcpy(vcpu->arch.apic->regs, s->regs, sizeof *s);
+	kvm_apic_post_state_restore(vcpu);
+	vcpu_put(vcpu);
+
+	return 0;
+}
+
+static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
+				    struct kvm_interrupt *irq)
+{
+	if (irq->irq < 0 || irq->irq >= 256)
+		return -EINVAL;
+	if (irqchip_in_kernel(vcpu->kvm))
+		return -ENXIO;
+	vcpu_load(vcpu);
+
+	set_bit(irq->irq, vcpu->arch.irq_pending);
+	set_bit(irq->irq / BITS_PER_LONG, &vcpu->arch.irq_summary);
+
+	vcpu_put(vcpu);
+
+	return 0;
+}
+
+long kvm_arch_vcpu_ioctl(struct file *filp,
+			 unsigned int ioctl, unsigned long arg)
+{
+	struct kvm_vcpu *vcpu = filp->private_data;
+	void __user *argp = (void __user *)arg;
+	int r;
+
+	switch (ioctl) {
+	case KVM_GET_LAPIC: {
+		struct kvm_lapic_state lapic;
+
+		memset(&lapic, 0, sizeof lapic);
+		r = kvm_vcpu_ioctl_get_lapic(vcpu, &lapic);
+		if (r)
+			goto out;
+		r = -EFAULT;
+		if (copy_to_user(argp, &lapic, sizeof lapic))
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_SET_LAPIC: {
+		struct kvm_lapic_state lapic;
+
+		r = -EFAULT;
+		if (copy_from_user(&lapic, argp, sizeof lapic))
+			goto out;
+		r = kvm_vcpu_ioctl_set_lapic(vcpu, &lapic);;
+		if (r)
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_INTERRUPT: {
+		struct kvm_interrupt irq;
+
+		r = -EFAULT;
+		if (copy_from_user(&irq, argp, sizeof irq))
+			goto out;
+		r = kvm_vcpu_ioctl_interrupt(vcpu, &irq);
+		if (r)
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_SET_CPUID: {
+		struct kvm_cpuid __user *cpuid_arg = argp;
+		struct kvm_cpuid cpuid;
+
+		r = -EFAULT;
+		if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
+			goto out;
+		r = kvm_vcpu_ioctl_set_cpuid(vcpu, &cpuid, cpuid_arg->entries);
+		if (r)
+			goto out;
+		break;
+	}
+	case KVM_SET_CPUID2: {
+		struct kvm_cpuid2 __user *cpuid_arg = argp;
+		struct kvm_cpuid2 cpuid;
+
+		r = -EFAULT;
+		if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
+			goto out;
+		r = kvm_vcpu_ioctl_set_cpuid2(vcpu, &cpuid,
+				cpuid_arg->entries);
+		if (r)
+			goto out;
+		break;
+	}
+	case KVM_GET_CPUID2: {
+		struct kvm_cpuid2 __user *cpuid_arg = argp;
+		struct kvm_cpuid2 cpuid;
+
+		r = -EFAULT;
+		if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
+			goto out;
+		r = kvm_vcpu_ioctl_get_cpuid2(vcpu, &cpuid,
+				cpuid_arg->entries);
+		if (r)
+			goto out;
+		r = -EFAULT;
+		if (copy_to_user(cpuid_arg, &cpuid, sizeof cpuid))
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_GET_MSRS:
+		r = msr_io(vcpu, argp, kvm_get_msr, 1);
+		break;
+	case KVM_SET_MSRS:
+		r = msr_io(vcpu, argp, do_set_msr, 0);
+		break;
+	default:
+		r = -EINVAL;
+	}
+out:
+	return r;
+}
+
+static int kvm_vm_ioctl_set_tss_addr(struct kvm *kvm, unsigned long addr)
+{
+	int ret;
+
+	if (addr > (unsigned int)(-3 * PAGE_SIZE))
+		return -1;
+	ret = kvm_x86_ops->set_tss_addr(kvm, addr);
+	return ret;
+}
+
+static int kvm_vm_ioctl_set_nr_mmu_pages(struct kvm *kvm,
+					  u32 kvm_nr_mmu_pages)
+{
+	if (kvm_nr_mmu_pages < KVM_MIN_ALLOC_MMU_PAGES)
+		return -EINVAL;
+
+	mutex_lock(&kvm->lock);
+
+	kvm_mmu_change_mmu_pages(kvm, kvm_nr_mmu_pages);
+	kvm->arch.n_requested_mmu_pages = kvm_nr_mmu_pages;
+
+	mutex_unlock(&kvm->lock);
+	return 0;
+}
+
+static int kvm_vm_ioctl_get_nr_mmu_pages(struct kvm *kvm)
+{
+	return kvm->arch.n_alloc_mmu_pages;
+}
+
+gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
+{
+	int i;
+	struct kvm_mem_alias *alias;
+
+	for (i = 0; i < kvm->arch.naliases; ++i) {
+		alias = &kvm->arch.aliases[i];
+		if (gfn >= alias->base_gfn
+		    && gfn < alias->base_gfn + alias->npages)
+			return alias->target_gfn + gfn - alias->base_gfn;
+	}
+	return gfn;
+}
+
+/*
+ * Set a new alias region.  Aliases map a portion of physical memory into
+ * another portion.  This is useful for memory windows, for example the PC
+ * VGA region.
+ */
+static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm,
+					 struct kvm_memory_alias *alias)
+{
+	int r, n;
+	struct kvm_mem_alias *p;
+
+	r = -EINVAL;
+	/* General sanity checks */
+	if (alias->memory_size & (PAGE_SIZE - 1))
+		goto out;
+	if (alias->guest_phys_addr & (PAGE_SIZE - 1))
+		goto out;
+	if (alias->slot >= KVM_ALIAS_SLOTS)
+		goto out;
+	if (alias->guest_phys_addr + alias->memory_size
+	    < alias->guest_phys_addr)
+		goto out;
+	if (alias->target_phys_addr + alias->memory_size
+	    < alias->target_phys_addr)
+		goto out;
+
+	mutex_lock(&kvm->lock);
+
+	p = &kvm->arch.aliases[alias->slot];
+	p->base_gfn = alias->guest_phys_addr >> PAGE_SHIFT;
+	p->npages = alias->memory_size >> PAGE_SHIFT;
+	p->target_gfn = alias->target_phys_addr >> PAGE_SHIFT;
+
+	for (n = KVM_ALIAS_SLOTS; n > 0; --n)
+		if (kvm->arch.aliases[n - 1].npages)
+			break;
+	kvm->arch.naliases = n;
+
+	kvm_mmu_zap_all(kvm);
+
+	mutex_unlock(&kvm->lock);
+
+	return 0;
+
+out:
+	return r;
+}
+
+static int kvm_vm_ioctl_get_irqchip(struct kvm *kvm, struct kvm_irqchip *chip)
+{
+	int r;
+
+	r = 0;
+	switch (chip->chip_id) {
+	case KVM_IRQCHIP_PIC_MASTER:
+		memcpy(&chip->chip.pic,
+			&pic_irqchip(kvm)->pics[0],
+			sizeof(struct kvm_pic_state));
+		break;
+	case KVM_IRQCHIP_PIC_SLAVE:
+		memcpy(&chip->chip.pic,
+			&pic_irqchip(kvm)->pics[1],
+			sizeof(struct kvm_pic_state));
+		break;
+	case KVM_IRQCHIP_IOAPIC:
+		memcpy(&chip->chip.ioapic,
+			ioapic_irqchip(kvm),
+			sizeof(struct kvm_ioapic_state));
+		break;
+	default:
+		r = -EINVAL;
+		break;
+	}
+	return r;
+}
+
+static int kvm_vm_ioctl_set_irqchip(struct kvm *kvm, struct kvm_irqchip *chip)
+{
+	int r;
+
+	r = 0;
+	switch (chip->chip_id) {
+	case KVM_IRQCHIP_PIC_MASTER:
+		memcpy(&pic_irqchip(kvm)->pics[0],
+			&chip->chip.pic,
+			sizeof(struct kvm_pic_state));
+		break;
+	case KVM_IRQCHIP_PIC_SLAVE:
+		memcpy(&pic_irqchip(kvm)->pics[1],
+			&chip->chip.pic,
+			sizeof(struct kvm_pic_state));
+		break;
+	case KVM_IRQCHIP_IOAPIC:
+		memcpy(ioapic_irqchip(kvm),
+			&chip->chip.ioapic,
+			sizeof(struct kvm_ioapic_state));
+		break;
+	default:
+		r = -EINVAL;
+		break;
+	}
+	kvm_pic_update_irq(pic_irqchip(kvm));
+	return r;
+}
+
+/*
+ * Get (and clear) the dirty memory log for a memory slot.
+ */
+int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
+				      struct kvm_dirty_log *log)
+{
+	int r;
+	int n;
+	struct kvm_memory_slot *memslot;
+	int is_dirty = 0;
+
+	mutex_lock(&kvm->lock);
+
+	r = kvm_get_dirty_log(kvm, log, &is_dirty);
+	if (r)
+		goto out;
+
+	/* If nothing is dirty, don't bother messing with page tables. */
+	if (is_dirty) {
+		kvm_mmu_slot_remove_write_access(kvm, log->slot);
+		kvm_flush_remote_tlbs(kvm);
+		memslot = &kvm->memslots[log->slot];
+		n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
+		memset(memslot->dirty_bitmap, 0, n);
+	}
+	r = 0;
+out:
+	mutex_unlock(&kvm->lock);
+	return r;
+}
+
+long kvm_arch_vm_ioctl(struct file *filp,
+		       unsigned int ioctl, unsigned long arg)
+{
+	struct kvm *kvm = filp->private_data;
+	void __user *argp = (void __user *)arg;
+	int r = -EINVAL;
+
+	switch (ioctl) {
+	case KVM_SET_TSS_ADDR:
+		r = kvm_vm_ioctl_set_tss_addr(kvm, arg);
+		if (r < 0)
+			goto out;
+		break;
+	case KVM_SET_MEMORY_REGION: {
+		struct kvm_memory_region kvm_mem;
+		struct kvm_userspace_memory_region kvm_userspace_mem;
+
+		r = -EFAULT;
+		if (copy_from_user(&kvm_mem, argp, sizeof kvm_mem))
+			goto out;
+		kvm_userspace_mem.slot = kvm_mem.slot;
+		kvm_userspace_mem.flags = kvm_mem.flags;
+		kvm_userspace_mem.guest_phys_addr = kvm_mem.guest_phys_addr;
+		kvm_userspace_mem.memory_size = kvm_mem.memory_size;
+		r = kvm_vm_ioctl_set_memory_region(kvm, &kvm_userspace_mem, 0);
+		if (r)
+			goto out;
+		break;
+	}
+	case KVM_SET_NR_MMU_PAGES:
+		r = kvm_vm_ioctl_set_nr_mmu_pages(kvm, arg);
+		if (r)
+			goto out;
+		break;
+	case KVM_GET_NR_MMU_PAGES:
+		r = kvm_vm_ioctl_get_nr_mmu_pages(kvm);
+		break;
+	case KVM_SET_MEMORY_ALIAS: {
+		struct kvm_memory_alias alias;
+
+		r = -EFAULT;
+		if (copy_from_user(&alias, argp, sizeof alias))
+			goto out;
+		r = kvm_vm_ioctl_set_memory_alias(kvm, &alias);
+		if (r)
+			goto out;
+		break;
+	}
+	case KVM_CREATE_IRQCHIP:
+		r = -ENOMEM;
+		kvm->arch.vpic = kvm_create_pic(kvm);
+		if (kvm->arch.vpic) {
+			r = kvm_ioapic_init(kvm);
+			if (r) {
+				kfree(kvm->arch.vpic);
+				kvm->arch.vpic = NULL;
+				goto out;
+			}
+		} else
+			goto out;
+		break;
+	case KVM_IRQ_LINE: {
+		struct kvm_irq_level irq_event;
+
+		r = -EFAULT;
+		if (copy_from_user(&irq_event, argp, sizeof irq_event))
+			goto out;
+		if (irqchip_in_kernel(kvm)) {
+			mutex_lock(&kvm->lock);
+			if (irq_event.irq < 16)
+				kvm_pic_set_irq(pic_irqchip(kvm),
+					irq_event.irq,
+					irq_event.level);
+			kvm_ioapic_set_irq(kvm->arch.vioapic,
+					irq_event.irq,
+					irq_event.level);
+			mutex_unlock(&kvm->lock);
+			r = 0;
+		}
+		break;
+	}
+	case KVM_GET_IRQCHIP: {
+		/* 0: PIC master, 1: PIC slave, 2: IOAPIC */
+		struct kvm_irqchip chip;
+
+		r = -EFAULT;
+		if (copy_from_user(&chip, argp, sizeof chip))
+			goto out;
+		r = -ENXIO;
+		if (!irqchip_in_kernel(kvm))
+			goto out;
+		r = kvm_vm_ioctl_get_irqchip(kvm, &chip);
+		if (r)
+			goto out;
+		r = -EFAULT;
+		if (copy_to_user(argp, &chip, sizeof chip))
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_SET_IRQCHIP: {
+		/* 0: PIC master, 1: PIC slave, 2: IOAPIC */
+		struct kvm_irqchip chip;
+
+		r = -EFAULT;
+		if (copy_from_user(&chip, argp, sizeof chip))
+			goto out;
+		r = -ENXIO;
+		if (!irqchip_in_kernel(kvm))
+			goto out;
+		r = kvm_vm_ioctl_set_irqchip(kvm, &chip);
+		if (r)
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_GET_SUPPORTED_CPUID: {
+		struct kvm_cpuid2 __user *cpuid_arg = argp;
+		struct kvm_cpuid2 cpuid;
+
+		r = -EFAULT;
+		if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
+			goto out;
+		r = kvm_vm_ioctl_get_supported_cpuid(kvm, &cpuid,
+			cpuid_arg->entries);
+		if (r)
+			goto out;
+
+		r = -EFAULT;
+		if (copy_to_user(cpuid_arg, &cpuid, sizeof cpuid))
+			goto out;
+		r = 0;
+		break;
+	}
+	default:
+		;
+	}
+out:
+	return r;
+}
+
+static void kvm_init_msr_list(void)
+{
+	u32 dummy[2];
+	unsigned i, j;
+
+	for (i = j = 0; i < ARRAY_SIZE(msrs_to_save); i++) {
+		if (rdmsr_safe(msrs_to_save[i], &dummy[0], &dummy[1]) < 0)
+			continue;
+		if (j < i)
+			msrs_to_save[j] = msrs_to_save[i];
+		j++;
+	}
+	num_msrs_to_save = j;
+}
+
+/*
+ * Only apic need an MMIO device hook, so shortcut now..
+ */
+static struct kvm_io_device *vcpu_find_pervcpu_dev(struct kvm_vcpu *vcpu,
+						gpa_t addr)
+{
+	struct kvm_io_device *dev;
+
+	if (vcpu->arch.apic) {
+		dev = &vcpu->arch.apic->dev;
+		if (dev->in_range(dev, addr))
+			return dev;
+	}
+	return NULL;
+}
+
+
+static struct kvm_io_device *vcpu_find_mmio_dev(struct kvm_vcpu *vcpu,
+						gpa_t addr)
+{
+	struct kvm_io_device *dev;
+
+	dev = vcpu_find_pervcpu_dev(vcpu, addr);
+	if (dev == NULL)
+		dev = kvm_io_bus_find_dev(&vcpu->kvm->mmio_bus, addr);
+	return dev;
+}
+
+int emulator_read_std(unsigned long addr,
+			     void *val,
+			     unsigned int bytes,
+			     struct kvm_vcpu *vcpu)
+{
+	void *data = val;
+
+	while (bytes) {
+		gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
+		unsigned offset = addr & (PAGE_SIZE-1);
+		unsigned tocopy = min(bytes, (unsigned)PAGE_SIZE - offset);
+		int ret;
+
+		if (gpa == UNMAPPED_GVA)
+			return X86EMUL_PROPAGATE_FAULT;
+		ret = kvm_read_guest(vcpu->kvm, gpa, data, tocopy);
+		if (ret < 0)
+			return X86EMUL_UNHANDLEABLE;
+
+		bytes -= tocopy;
+		data += tocopy;
+		addr += tocopy;
+	}
+
+	return X86EMUL_CONTINUE;
+}
+EXPORT_SYMBOL_GPL(emulator_read_std);
+
+static int emulator_read_emulated(unsigned long addr,
+				  void *val,
+				  unsigned int bytes,
+				  struct kvm_vcpu *vcpu)
+{
+	struct kvm_io_device *mmio_dev;
+	gpa_t                 gpa;
+
+	if (vcpu->mmio_read_completed) {
+		memcpy(val, vcpu->mmio_data, bytes);
+		vcpu->mmio_read_completed = 0;
+		return X86EMUL_CONTINUE;
+	}
+
+	gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
+
+	/* For APIC access vmexit */
+	if ((gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
+		goto mmio;
+
+	if (emulator_read_std(addr, val, bytes, vcpu)
+			== X86EMUL_CONTINUE)
+		return X86EMUL_CONTINUE;
+	if (gpa == UNMAPPED_GVA)
+		return X86EMUL_PROPAGATE_FAULT;
+
+mmio:
+	/*
+	 * Is this MMIO handled locally?
+	 */
+	mmio_dev = vcpu_find_mmio_dev(vcpu, gpa);
+	if (mmio_dev) {
+		kvm_iodevice_read(mmio_dev, gpa, bytes, val);
+		return X86EMUL_CONTINUE;
+	}
+
+	vcpu->mmio_needed = 1;
+	vcpu->mmio_phys_addr = gpa;
+	vcpu->mmio_size = bytes;
+	vcpu->mmio_is_write = 0;
+
+	return X86EMUL_UNHANDLEABLE;
+}
+
+static int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
+			       const void *val, int bytes)
+{
+	int ret;
+
+	ret = kvm_write_guest(vcpu->kvm, gpa, val, bytes);
+	if (ret < 0)
+		return 0;
+	kvm_mmu_pte_write(vcpu, gpa, val, bytes);
+	return 1;
+}
+
+static int emulator_write_emulated_onepage(unsigned long addr,
+					   const void *val,
+					   unsigned int bytes,
+					   struct kvm_vcpu *vcpu)
+{
+	struct kvm_io_device *mmio_dev;
+	gpa_t                 gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
+
+	if (gpa == UNMAPPED_GVA) {
+		kvm_inject_page_fault(vcpu, addr, 2);
+		return X86EMUL_PROPAGATE_FAULT;
+	}
+
+	/* For APIC access vmexit */
+	if ((gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
+		goto mmio;
+
+	if (emulator_write_phys(vcpu, gpa, val, bytes))
+		return X86EMUL_CONTINUE;
+
+mmio:
+	/*
+	 * Is this MMIO handled locally?
+	 */
+	mmio_dev = vcpu_find_mmio_dev(vcpu, gpa);
+	if (mmio_dev) {
+		kvm_iodevice_write(mmio_dev, gpa, bytes, val);
+		return X86EMUL_CONTINUE;
+	}
+
+	vcpu->mmio_needed = 1;
+	vcpu->mmio_phys_addr = gpa;
+	vcpu->mmio_size = bytes;
+	vcpu->mmio_is_write = 1;
+	memcpy(vcpu->mmio_data, val, bytes);
+
+	return X86EMUL_CONTINUE;
+}
+
+int emulator_write_emulated(unsigned long addr,
+				   const void *val,
+				   unsigned int bytes,
+				   struct kvm_vcpu *vcpu)
+{
+	/* Crossing a page boundary? */
+	if (((addr + bytes - 1) ^ addr) & PAGE_MASK) {
+		int rc, now;
+
+		now = -addr & ~PAGE_MASK;
+		rc = emulator_write_emulated_onepage(addr, val, now, vcpu);
+		if (rc != X86EMUL_CONTINUE)
+			return rc;
+		addr += now;
+		val += now;
+		bytes -= now;
+	}
+	return emulator_write_emulated_onepage(addr, val, bytes, vcpu);
+}
+EXPORT_SYMBOL_GPL(emulator_write_emulated);
+
+static int emulator_cmpxchg_emulated(unsigned long addr,
+				     const void *old,
+				     const void *new,
+				     unsigned int bytes,
+				     struct kvm_vcpu *vcpu)
+{
+	static int reported;
+
+	if (!reported) {
+		reported = 1;
+		printk(KERN_WARNING "kvm: emulating exchange as write\n");
+	}
+#ifndef CONFIG_X86_64
+	/* guests cmpxchg8b have to be emulated atomically */
+	if (bytes == 8) {
+		gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
+		struct page *page;
+		char *addr;
+		u64 val;
+
+		if (gpa == UNMAPPED_GVA ||
+		   (gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
+			goto emul_write;
+
+		if (((gpa + bytes - 1) & PAGE_MASK) != (gpa & PAGE_MASK))
+			goto emul_write;
+
+		val = *(u64 *)new;
+		page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+		addr = kmap_atomic(page, KM_USER0);
+		set_64bit((u64 *)(addr + offset_in_page(gpa)), val);
+		kunmap_atomic(addr, KM_USER0);
+		kvm_release_page_dirty(page);
+	}
+emul_write:
+#endif
+
+	return emulator_write_emulated(addr, new, bytes, vcpu);
+}
+
+static unsigned long get_segment_base(struct kvm_vcpu *vcpu, int seg)
+{
+	return kvm_x86_ops->get_segment_base(vcpu, seg);
+}
+
+int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address)
+{
+	return X86EMUL_CONTINUE;
+}
+
+int emulate_clts(struct kvm_vcpu *vcpu)
+{
+	kvm_x86_ops->set_cr0(vcpu, vcpu->arch.cr0 & ~X86_CR0_TS);
+	return X86EMUL_CONTINUE;
+}
+
+int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr, unsigned long *dest)
+{
+	struct kvm_vcpu *vcpu = ctxt->vcpu;
+
+	switch (dr) {
+	case 0 ... 3:
+		*dest = kvm_x86_ops->get_dr(vcpu, dr);
+		return X86EMUL_CONTINUE;
+	default:
+		pr_unimpl(vcpu, "%s: unexpected dr %u\n", __FUNCTION__, dr);
+		return X86EMUL_UNHANDLEABLE;
+	}
+}
+
+int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr, unsigned long value)
+{
+	unsigned long mask = (ctxt->mode == X86EMUL_MODE_PROT64) ? ~0ULL : ~0U;
+	int exception;
+
+	kvm_x86_ops->set_dr(ctxt->vcpu, dr, value & mask, &exception);
+	if (exception) {
+		/* FIXME: better handling */
+		return X86EMUL_UNHANDLEABLE;
+	}
+	return X86EMUL_CONTINUE;
+}
+
+void kvm_report_emulation_failure(struct kvm_vcpu *vcpu, const char *context)
+{
+	static int reported;
+	u8 opcodes[4];
+	unsigned long rip = vcpu->arch.rip;
+	unsigned long rip_linear;
+
+	rip_linear = rip + get_segment_base(vcpu, VCPU_SREG_CS);
+
+	if (reported)
+		return;
+
+	emulator_read_std(rip_linear, (void *)opcodes, 4, vcpu);
+
+	printk(KERN_ERR "emulation failed (%s) rip %lx %02x %02x %02x %02x\n",
+	       context, rip, opcodes[0], opcodes[1], opcodes[2], opcodes[3]);
+	reported = 1;
+}
+EXPORT_SYMBOL_GPL(kvm_report_emulation_failure);
+
+struct x86_emulate_ops emulate_ops = {
+	.read_std            = emulator_read_std,
+	.read_emulated       = emulator_read_emulated,
+	.write_emulated      = emulator_write_emulated,
+	.cmpxchg_emulated    = emulator_cmpxchg_emulated,
+};
+
+int emulate_instruction(struct kvm_vcpu *vcpu,
+			struct kvm_run *run,
+			unsigned long cr2,
+			u16 error_code,
+			int no_decode)
+{
+	int r;
+
+	vcpu->arch.mmio_fault_cr2 = cr2;
+	kvm_x86_ops->cache_regs(vcpu);
+
+	vcpu->mmio_is_write = 0;
+	vcpu->arch.pio.string = 0;
+
+	if (!no_decode) {
+		int cs_db, cs_l;
+		kvm_x86_ops->get_cs_db_l_bits(vcpu, &cs_db, &cs_l);
+
+		vcpu->arch.emulate_ctxt.vcpu = vcpu;
+		vcpu->arch.emulate_ctxt.eflags = kvm_x86_ops->get_rflags(vcpu);
+		vcpu->arch.emulate_ctxt.mode =
+			(vcpu->arch.emulate_ctxt.eflags & X86_EFLAGS_VM)
+			? X86EMUL_MODE_REAL : cs_l
+			? X86EMUL_MODE_PROT64 :	cs_db
+			? X86EMUL_MODE_PROT32 : X86EMUL_MODE_PROT16;
+
+		if (vcpu->arch.emulate_ctxt.mode == X86EMUL_MODE_PROT64) {
+			vcpu->arch.emulate_ctxt.cs_base = 0;
+			vcpu->arch.emulate_ctxt.ds_base = 0;
+			vcpu->arch.emulate_ctxt.es_base = 0;
+			vcpu->arch.emulate_ctxt.ss_base = 0;
+		} else {
+			vcpu->arch.emulate_ctxt.cs_base =
+					get_segment_base(vcpu, VCPU_SREG_CS);
+			vcpu->arch.emulate_ctxt.ds_base =
+					get_segment_base(vcpu, VCPU_SREG_DS);
+			vcpu->arch.emulate_ctxt.es_base =
+					get_segment_base(vcpu, VCPU_SREG_ES);
+			vcpu->arch.emulate_ctxt.ss_base =
+					get_segment_base(vcpu, VCPU_SREG_SS);
+		}
+
+		vcpu->arch.emulate_ctxt.gs_base =
+					get_segment_base(vcpu, VCPU_SREG_GS);
+		vcpu->arch.emulate_ctxt.fs_base =
+					get_segment_base(vcpu, VCPU_SREG_FS);
+
+		r = x86_decode_insn(&vcpu->arch.emulate_ctxt, &emulate_ops);
+		++vcpu->stat.insn_emulation;
+		if (r)  {
+			++vcpu->stat.insn_emulation_fail;
+			if (kvm_mmu_unprotect_page_virt(vcpu, cr2))
+				return EMULATE_DONE;
+			return EMULATE_FAIL;
+		}
+	}
+
+	r = x86_emulate_insn(&vcpu->arch.emulate_ctxt, &emulate_ops);
+
+	if (vcpu->arch.pio.string)
+		return EMULATE_DO_MMIO;
+
+	if ((r || vcpu->mmio_is_write) && run) {
+		run->exit_reason = KVM_EXIT_MMIO;
+		run->mmio.phys_addr = vcpu->mmio_phys_addr;
+		memcpy(run->mmio.data, vcpu->mmio_data, 8);
+		run->mmio.len = vcpu->mmio_size;
+		run->mmio.is_write = vcpu->mmio_is_write;
+	}
+
+	if (r) {
+		if (kvm_mmu_unprotect_page_virt(vcpu, cr2))
+			return EMULATE_DONE;
+		if (!vcpu->mmio_needed) {
+			kvm_report_emulation_failure(vcpu, "mmio");
+			return EMULATE_FAIL;
+		}
+		return EMULATE_DO_MMIO;
+	}
+
+	kvm_x86_ops->decache_regs(vcpu);
+	kvm_x86_ops->set_rflags(vcpu, vcpu->arch.emulate_ctxt.eflags);
+
+	if (vcpu->mmio_is_write) {
+		vcpu->mmio_needed = 0;
+		return EMULATE_DO_MMIO;
+	}
+
+	return EMULATE_DONE;
+}
+EXPORT_SYMBOL_GPL(emulate_instruction);
+
+static void free_pio_guest_pages(struct kvm_vcpu *vcpu)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(vcpu->arch.pio.guest_pages); ++i)
+		if (vcpu->arch.pio.guest_pages[i]) {
+			kvm_release_page_dirty(vcpu->arch.pio.guest_pages[i]);
+			vcpu->arch.pio.guest_pages[i] = NULL;
+		}
+}
+
+static int pio_copy_data(struct kvm_vcpu *vcpu)
+{
+	void *p = vcpu->arch.pio_data;
+	void *q;
+	unsigned bytes;
+	int nr_pages = vcpu->arch.pio.guest_pages[1] ? 2 : 1;
+
+	q = vmap(vcpu->arch.pio.guest_pages, nr_pages, VM_READ|VM_WRITE,
+		 PAGE_KERNEL);
+	if (!q) {
+		free_pio_guest_pages(vcpu);
+		return -ENOMEM;
+	}
+	q += vcpu->arch.pio.guest_page_offset;
+	bytes = vcpu->arch.pio.size * vcpu->arch.pio.cur_count;
+	if (vcpu->arch.pio.in)
+		memcpy(q, p, bytes);
+	else
+		memcpy(p, q, bytes);
+	q -= vcpu->arch.pio.guest_page_offset;
+	vunmap(q);
+	free_pio_guest_pages(vcpu);
+	return 0;
+}
+
+int complete_pio(struct kvm_vcpu *vcpu)
+{
+	struct kvm_pio_request *io = &vcpu->arch.pio;
+	long delta;
+	int r;
+
+	kvm_x86_ops->cache_regs(vcpu);
+
+	if (!io->string) {
+		if (io->in)
+			memcpy(&vcpu->arch.regs[VCPU_REGS_RAX], vcpu->arch.pio_data,
+			       io->size);
+	} else {
+		if (io->in) {
+			r = pio_copy_data(vcpu);
+			if (r) {
+				kvm_x86_ops->cache_regs(vcpu);
+				return r;
+			}
+		}
+
+		delta = 1;
+		if (io->rep) {
+			delta *= io->cur_count;
+			/*
+			 * The size of the register should really depend on
+			 * current address size.
+			 */
+			vcpu->arch.regs[VCPU_REGS_RCX] -= delta;
+		}
+		if (io->down)
+			delta = -delta;
+		delta *= io->size;
+		if (io->in)
+			vcpu->arch.regs[VCPU_REGS_RDI] += delta;
+		else
+			vcpu->arch.regs[VCPU_REGS_RSI] += delta;
+	}
+
+	kvm_x86_ops->decache_regs(vcpu);
+
+	io->count -= io->cur_count;
+	io->cur_count = 0;
+
+	return 0;
+}
+
+static void kernel_pio(struct kvm_io_device *pio_dev,
+		       struct kvm_vcpu *vcpu,
+		       void *pd)
+{
+	/* TODO: String I/O for in kernel device */
+
+	mutex_lock(&vcpu->kvm->lock);
+	if (vcpu->arch.pio.in)
+		kvm_iodevice_read(pio_dev, vcpu->arch.pio.port,
+				  vcpu->arch.pio.size,
+				  pd);
+	else
+		kvm_iodevice_write(pio_dev, vcpu->arch.pio.port,
+				   vcpu->arch.pio.size,
+				   pd);
+	mutex_unlock(&vcpu->kvm->lock);
+}
+
+static void pio_string_write(struct kvm_io_device *pio_dev,
+			     struct kvm_vcpu *vcpu)
+{
+	struct kvm_pio_request *io = &vcpu->arch.pio;
+	void *pd = vcpu->arch.pio_data;
+	int i;
+
+	mutex_lock(&vcpu->kvm->lock);
+	for (i = 0; i < io->cur_count; i++) {
+		kvm_iodevice_write(pio_dev, io->port,
+				   io->size,
+				   pd);
+		pd += io->size;
+	}
+	mutex_unlock(&vcpu->kvm->lock);
+}
+
+static struct kvm_io_device *vcpu_find_pio_dev(struct kvm_vcpu *vcpu,
+					       gpa_t addr)
+{
+	return kvm_io_bus_find_dev(&vcpu->kvm->pio_bus, addr);
+}
+
+int kvm_emulate_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
+		  int size, unsigned port)
+{
+	struct kvm_io_device *pio_dev;
+
+	vcpu->run->exit_reason = KVM_EXIT_IO;
+	vcpu->run->io.direction = in ? KVM_EXIT_IO_IN : KVM_EXIT_IO_OUT;
+	vcpu->run->io.size = vcpu->arch.pio.size = size;
+	vcpu->run->io.data_offset = KVM_PIO_PAGE_OFFSET * PAGE_SIZE;
+	vcpu->run->io.count = vcpu->arch.pio.count = vcpu->arch.pio.cur_count = 1;
+	vcpu->run->io.port = vcpu->arch.pio.port = port;
+	vcpu->arch.pio.in = in;
+	vcpu->arch.pio.string = 0;
+	vcpu->arch.pio.down = 0;
+	vcpu->arch.pio.guest_page_offset = 0;
+	vcpu->arch.pio.rep = 0;
+
+	kvm_x86_ops->cache_regs(vcpu);
+	memcpy(vcpu->arch.pio_data, &vcpu->arch.regs[VCPU_REGS_RAX], 4);
+	kvm_x86_ops->decache_regs(vcpu);
+
+	kvm_x86_ops->skip_emulated_instruction(vcpu);
+
+	pio_dev = vcpu_find_pio_dev(vcpu, port);
+	if (pio_dev) {
+		kernel_pio(pio_dev, vcpu, vcpu->arch.pio_data);
+		complete_pio(vcpu);
+		return 1;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(kvm_emulate_pio);
+
+int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
+		  int size, unsigned long count, int down,
+		  gva_t address, int rep, unsigned port)
+{
+	unsigned now, in_page;
+	int i, ret = 0;
+	int nr_pages = 1;
+	struct page *page;
+	struct kvm_io_device *pio_dev;
+
+	vcpu->run->exit_reason = KVM_EXIT_IO;
+	vcpu->run->io.direction = in ? KVM_EXIT_IO_IN : KVM_EXIT_IO_OUT;
+	vcpu->run->io.size = vcpu->arch.pio.size = size;
+	vcpu->run->io.data_offset = KVM_PIO_PAGE_OFFSET * PAGE_SIZE;
+	vcpu->run->io.count = vcpu->arch.pio.count = vcpu->arch.pio.cur_count = count;
+	vcpu->run->io.port = vcpu->arch.pio.port = port;
+	vcpu->arch.pio.in = in;
+	vcpu->arch.pio.string = 1;
+	vcpu->arch.pio.down = down;
+	vcpu->arch.pio.guest_page_offset = offset_in_page(address);
+	vcpu->arch.pio.rep = rep;
+
+	if (!count) {
+		kvm_x86_ops->skip_emulated_instruction(vcpu);
+		return 1;
+	}
+
+	if (!down)
+		in_page = PAGE_SIZE - offset_in_page(address);
+	else
+		in_page = offset_in_page(address) + size;
+	now = min(count, (unsigned long)in_page / size);
+	if (!now) {
+		/*
+		 * String I/O straddles page boundary.  Pin two guest pages
+		 * so that we satisfy atomicity constraints.  Do just one
+		 * transaction to avoid complexity.
+		 */
+		nr_pages = 2;
+		now = 1;
+	}
+	if (down) {
+		/*
+		 * String I/O in reverse.  Yuck.  Kill the guest, fix later.
+		 */
+		pr_unimpl(vcpu, "guest string pio down\n");
+		kvm_inject_gp(vcpu, 0);
+		return 1;
+	}
+	vcpu->run->io.count = now;
+	vcpu->arch.pio.cur_count = now;
+
+	if (vcpu->arch.pio.cur_count == vcpu->arch.pio.count)
+		kvm_x86_ops->skip_emulated_instruction(vcpu);
+
+	for (i = 0; i < nr_pages; ++i) {
+		mutex_lock(&vcpu->kvm->lock);
+		page = gva_to_page(vcpu, address + i * PAGE_SIZE);
+		vcpu->arch.pio.guest_pages[i] = page;
+		mutex_unlock(&vcpu->kvm->lock);
+		if (!page) {
+			kvm_inject_gp(vcpu, 0);
+			free_pio_guest_pages(vcpu);
+			return 1;
+		}
+	}
+
+	pio_dev = vcpu_find_pio_dev(vcpu, port);
+	if (!vcpu->arch.pio.in) {
+		/* string PIO write */
+		ret = pio_copy_data(vcpu);
+		if (ret >= 0 && pio_dev) {
+			pio_string_write(pio_dev, vcpu);
+			complete_pio(vcpu);
+			if (vcpu->arch.pio.count == 0)
+				ret = 1;
+		}
+	} else if (pio_dev)
+		pr_unimpl(vcpu, "no string pio read support yet, "
+		       "port %x size %d count %ld\n",
+			port, size, count);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(kvm_emulate_pio_string);
+
+int kvm_arch_init(void *opaque)
+{
+	int r;
+	struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque;
+
+	r = kvm_mmu_module_init();
+	if (r)
+		goto out_fail;
+
+	kvm_init_msr_list();
+
+	if (kvm_x86_ops) {
+		printk(KERN_ERR "kvm: already loaded the other module\n");
+		r = -EEXIST;
+		goto out;
+	}
+
+	if (!ops->cpu_has_kvm_support()) {
+		printk(KERN_ERR "kvm: no hardware support\n");
+		r = -EOPNOTSUPP;
+		goto out;
+	}
+	if (ops->disabled_by_bios()) {
+		printk(KERN_ERR "kvm: disabled by bios\n");
+		r = -EOPNOTSUPP;
+		goto out;
+	}
+
+	kvm_x86_ops = ops;
+	kvm_mmu_set_nonpresent_ptes(0ull, 0ull);
+	return 0;
+
+out:
+	kvm_mmu_module_exit();
+out_fail:
+	return r;
+}
+
+void kvm_arch_exit(void)
+{
+	kvm_x86_ops = NULL;
+	kvm_mmu_module_exit();
+}
+
+int kvm_emulate_halt(struct kvm_vcpu *vcpu)
+{
+	++vcpu->stat.halt_exits;
+	if (irqchip_in_kernel(vcpu->kvm)) {
+		vcpu->arch.mp_state = VCPU_MP_STATE_HALTED;
+		kvm_vcpu_block(vcpu);
+		if (vcpu->arch.mp_state != VCPU_MP_STATE_RUNNABLE)
+			return -EINTR;
+		return 1;
+	} else {
+		vcpu->run->exit_reason = KVM_EXIT_HLT;
+		return 0;
+	}
+}
+EXPORT_SYMBOL_GPL(kvm_emulate_halt);
+
+int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
+{
+	unsigned long nr, a0, a1, a2, a3, ret;
+
+	kvm_x86_ops->cache_regs(vcpu);
+
+	nr = vcpu->arch.regs[VCPU_REGS_RAX];
+	a0 = vcpu->arch.regs[VCPU_REGS_RBX];
+	a1 = vcpu->arch.regs[VCPU_REGS_RCX];
+	a2 = vcpu->arch.regs[VCPU_REGS_RDX];
+	a3 = vcpu->arch.regs[VCPU_REGS_RSI];
+
+	if (!is_long_mode(vcpu)) {
+		nr &= 0xFFFFFFFF;
+		a0 &= 0xFFFFFFFF;
+		a1 &= 0xFFFFFFFF;
+		a2 &= 0xFFFFFFFF;
+		a3 &= 0xFFFFFFFF;
+	}
+
+	switch (nr) {
+	default:
+		ret = -KVM_ENOSYS;
+		break;
+	}
+	vcpu->arch.regs[VCPU_REGS_RAX] = ret;
+	kvm_x86_ops->decache_regs(vcpu);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(kvm_emulate_hypercall);
+
+int kvm_fix_hypercall(struct kvm_vcpu *vcpu)
+{
+	char instruction[3];
+	int ret = 0;
+
+	mutex_lock(&vcpu->kvm->lock);
+
+	/*
+	 * Blow out the MMU to ensure that no other VCPU has an active mapping
+	 * to ensure that the updated hypercall appears atomically across all
+	 * VCPUs.
+	 */
+	kvm_mmu_zap_all(vcpu->kvm);
+
+	kvm_x86_ops->cache_regs(vcpu);
+	kvm_x86_ops->patch_hypercall(vcpu, instruction);
+	if (emulator_write_emulated(vcpu->arch.rip, instruction, 3, vcpu)
+	    != X86EMUL_CONTINUE)
+		ret = -EFAULT;
+
+	mutex_unlock(&vcpu->kvm->lock);
+
+	return ret;
+}
+
+static u64 mk_cr_64(u64 curr_cr, u32 new_val)
+{
+	return (curr_cr & ~((1ULL << 32) - 1)) | new_val;
+}
+
+void realmode_lgdt(struct kvm_vcpu *vcpu, u16 limit, unsigned long base)
+{
+	struct descriptor_table dt = { limit, base };
+
+	kvm_x86_ops->set_gdt(vcpu, &dt);
+}
+
+void realmode_lidt(struct kvm_vcpu *vcpu, u16 limit, unsigned long base)
+{
+	struct descriptor_table dt = { limit, base };
+
+	kvm_x86_ops->set_idt(vcpu, &dt);
+}
+
+void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
+		   unsigned long *rflags)
+{
+	lmsw(vcpu, msw);
+	*rflags = kvm_x86_ops->get_rflags(vcpu);
+}
+
+unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr)
+{
+	kvm_x86_ops->decache_cr4_guest_bits(vcpu);
+	switch (cr) {
+	case 0:
+		return vcpu->arch.cr0;
+	case 2:
+		return vcpu->arch.cr2;
+	case 3:
+		return vcpu->arch.cr3;
+	case 4:
+		return vcpu->arch.cr4;
+	case 8:
+		return get_cr8(vcpu);
+	default:
+		vcpu_printf(vcpu, "%s: unexpected cr %u\n", __FUNCTION__, cr);
+		return 0;
+	}
+}
+
+void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long val,
+		     unsigned long *rflags)
+{
+	switch (cr) {
+	case 0:
+		set_cr0(vcpu, mk_cr_64(vcpu->arch.cr0, val));
+		*rflags = kvm_x86_ops->get_rflags(vcpu);
+		break;
+	case 2:
+		vcpu->arch.cr2 = val;
+		break;
+	case 3:
+		set_cr3(vcpu, val);
+		break;
+	case 4:
+		set_cr4(vcpu, mk_cr_64(vcpu->arch.cr4, val));
+		break;
+	case 8:
+		set_cr8(vcpu, val & 0xfUL);
+		break;
+	default:
+		vcpu_printf(vcpu, "%s: unexpected cr %u\n", __FUNCTION__, cr);
+	}
+}
+
+static int move_to_next_stateful_cpuid_entry(struct kvm_vcpu *vcpu, int i)
+{
+	struct kvm_cpuid_entry2 *e = &vcpu->arch.cpuid_entries[i];
+	int j, nent = vcpu->arch.cpuid_nent;
+
+	e->flags &= ~KVM_CPUID_FLAG_STATE_READ_NEXT;
+	/* when no next entry is found, the current entry[i] is reselected */
+	for (j = i + 1; j == i; j = (j + 1) % nent) {
+		struct kvm_cpuid_entry2 *ej = &vcpu->arch.cpuid_entries[j];
+		if (ej->function == e->function) {
+			ej->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
+			return j;
+		}
+	}
+	return 0; /* silence gcc, even though control never reaches here */
+}
+
+/* find an entry with matching function, matching index (if needed), and that
+ * should be read next (if it's stateful) */
+static int is_matching_cpuid_entry(struct kvm_cpuid_entry2 *e,
+	u32 function, u32 index)
+{
+	if (e->function != function)
+		return 0;
+	if ((e->flags & KVM_CPUID_FLAG_SIGNIFCANT_INDEX) && e->index != index)
+		return 0;
+	if ((e->flags & KVM_CPUID_FLAG_STATEFUL_FUNC) &&
+		!(e->flags & KVM_CPUID_FLAG_STATE_READ_NEXT))
+		return 0;
+	return 1;
+}
+
+void kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
+{
+	int i;
+	u32 function, index;
+	struct kvm_cpuid_entry2 *e, *best;
+
+	kvm_x86_ops->cache_regs(vcpu);
+	function = vcpu->arch.regs[VCPU_REGS_RAX];
+	index = vcpu->arch.regs[VCPU_REGS_RCX];
+	vcpu->arch.regs[VCPU_REGS_RAX] = 0;
+	vcpu->arch.regs[VCPU_REGS_RBX] = 0;
+	vcpu->arch.regs[VCPU_REGS_RCX] = 0;
+	vcpu->arch.regs[VCPU_REGS_RDX] = 0;
+	best = NULL;
+	for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
+		e = &vcpu->arch.cpuid_entries[i];
+		if (is_matching_cpuid_entry(e, function, index)) {
+			if (e->flags & KVM_CPUID_FLAG_STATEFUL_FUNC)
+				move_to_next_stateful_cpuid_entry(vcpu, i);
+			best = e;
+			break;
+		}
+		/*
+		 * Both basic or both extended?
+		 */
+		if (((e->function ^ function) & 0x80000000) == 0)
+			if (!best || e->function > best->function)
+				best = e;
+	}
+	if (best) {
+		vcpu->arch.regs[VCPU_REGS_RAX] = best->eax;
+		vcpu->arch.regs[VCPU_REGS_RBX] = best->ebx;
+		vcpu->arch.regs[VCPU_REGS_RCX] = best->ecx;
+		vcpu->arch.regs[VCPU_REGS_RDX] = best->edx;
+	}
+	kvm_x86_ops->decache_regs(vcpu);
+	kvm_x86_ops->skip_emulated_instruction(vcpu);
+}
+EXPORT_SYMBOL_GPL(kvm_emulate_cpuid);
+
+/*
+ * Check if userspace requested an interrupt window, and that the
+ * interrupt window is open.
+ *
+ * No need to exit to userspace if we already have an interrupt queued.
+ */
+static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu,
+					  struct kvm_run *kvm_run)
+{
+	return (!vcpu->arch.irq_summary &&
+		kvm_run->request_interrupt_window &&
+		vcpu->arch.interrupt_window_open &&
+		(kvm_x86_ops->get_rflags(vcpu) & X86_EFLAGS_IF));
+}
+
+static void post_kvm_run_save(struct kvm_vcpu *vcpu,
+			      struct kvm_run *kvm_run)
+{
+	kvm_run->if_flag = (kvm_x86_ops->get_rflags(vcpu) & X86_EFLAGS_IF) != 0;
+	kvm_run->cr8 = get_cr8(vcpu);
+	kvm_run->apic_base = kvm_get_apic_base(vcpu);
+	if (irqchip_in_kernel(vcpu->kvm))
+		kvm_run->ready_for_interrupt_injection = 1;
+	else
+		kvm_run->ready_for_interrupt_injection =
+					(vcpu->arch.interrupt_window_open &&
+					 vcpu->arch.irq_summary == 0);
+}
+
+static int __vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	int r;
+
+	if (unlikely(vcpu->arch.mp_state == VCPU_MP_STATE_SIPI_RECEIVED)) {
+		pr_debug("vcpu %d received sipi with vector # %x\n",
+		       vcpu->vcpu_id, vcpu->arch.sipi_vector);
+		kvm_lapic_reset(vcpu);
+		r = kvm_x86_ops->vcpu_reset(vcpu);
+		if (r)
+			return r;
+		vcpu->arch.mp_state = VCPU_MP_STATE_RUNNABLE;
+	}
+
+preempted:
+	if (vcpu->guest_debug.enabled)
+		kvm_x86_ops->guest_debug_pre(vcpu);
+
+again:
+	r = kvm_mmu_reload(vcpu);
+	if (unlikely(r))
+		goto out;
+
+	kvm_inject_pending_timer_irqs(vcpu);
+
+	preempt_disable();
+
+	kvm_x86_ops->prepare_guest_switch(vcpu);
+	kvm_load_guest_fpu(vcpu);
+
+	local_irq_disable();
+
+	if (signal_pending(current)) {
+		local_irq_enable();
+		preempt_enable();
+		r = -EINTR;
+		kvm_run->exit_reason = KVM_EXIT_INTR;
+		++vcpu->stat.signal_exits;
+		goto out;
+	}
+
+	if (vcpu->arch.exception.pending)
+		__queue_exception(vcpu);
+	else if (irqchip_in_kernel(vcpu->kvm))
+		kvm_x86_ops->inject_pending_irq(vcpu);
+	else
+		kvm_x86_ops->inject_pending_vectors(vcpu, kvm_run);
+
+	vcpu->guest_mode = 1;
+	kvm_guest_enter();
+
+	if (vcpu->requests)
+		if (test_and_clear_bit(KVM_REQ_TLB_FLUSH, &vcpu->requests))
+			kvm_x86_ops->tlb_flush(vcpu);
+
+	kvm_x86_ops->run(vcpu, kvm_run);
+
+	vcpu->guest_mode = 0;
+	local_irq_enable();
+
+	++vcpu->stat.exits;
+
+	/*
+	 * We must have an instruction between local_irq_enable() and
+	 * kvm_guest_exit(), so the timer interrupt isn't delayed by
+	 * the interrupt shadow.  The stat.exits increment will do nicely.
+	 * But we need to prevent reordering, hence this barrier():
+	 */
+	barrier();
+
+	kvm_guest_exit();
+
+	preempt_enable();
+
+	/*
+	 * Profile KVM exit RIPs:
+	 */
+	if (unlikely(prof_on == KVM_PROFILING)) {
+		kvm_x86_ops->cache_regs(vcpu);
+		profile_hit(KVM_PROFILING, (void *)vcpu->arch.rip);
+	}
+
+	if (vcpu->arch.exception.pending && kvm_x86_ops->exception_injected(vcpu))
+		vcpu->arch.exception.pending = false;
+
+	r = kvm_x86_ops->handle_exit(kvm_run, vcpu);
+
+	if (r > 0) {
+		if (dm_request_for_irq_injection(vcpu, kvm_run)) {
+			r = -EINTR;
+			kvm_run->exit_reason = KVM_EXIT_INTR;
+			++vcpu->stat.request_irq_exits;
+			goto out;
+		}
+		if (!need_resched())
+			goto again;
+	}
+
+out:
+	if (r > 0) {
+		kvm_resched(vcpu);
+		goto preempted;
+	}
+
+	post_kvm_run_save(vcpu, kvm_run);
+
+	return r;
+}
+
+int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	int r;
+	sigset_t sigsaved;
+
+	vcpu_load(vcpu);
+
+	if (unlikely(vcpu->arch.mp_state == VCPU_MP_STATE_UNINITIALIZED)) {
+		kvm_vcpu_block(vcpu);
+		vcpu_put(vcpu);
+		return -EAGAIN;
+	}
+
+	if (vcpu->sigset_active)
+		sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
+
+	/* re-sync apic's tpr */
+	if (!irqchip_in_kernel(vcpu->kvm))
+		set_cr8(vcpu, kvm_run->cr8);
+
+	if (vcpu->arch.pio.cur_count) {
+		r = complete_pio(vcpu);
+		if (r)
+			goto out;
+	}
+#if CONFIG_HAS_IOMEM
+	if (vcpu->mmio_needed) {
+		memcpy(vcpu->mmio_data, kvm_run->mmio.data, 8);
+		vcpu->mmio_read_completed = 1;
+		vcpu->mmio_needed = 0;
+		r = emulate_instruction(vcpu, kvm_run,
+					vcpu->arch.mmio_fault_cr2, 0, 1);
+		if (r == EMULATE_DO_MMIO) {
+			/*
+			 * Read-modify-write.  Back to userspace.
+			 */
+			r = 0;
+			goto out;
+		}
+	}
+#endif
+	if (kvm_run->exit_reason == KVM_EXIT_HYPERCALL) {
+		kvm_x86_ops->cache_regs(vcpu);
+		vcpu->arch.regs[VCPU_REGS_RAX] = kvm_run->hypercall.ret;
+		kvm_x86_ops->decache_regs(vcpu);
+	}
+
+	r = __vcpu_run(vcpu, kvm_run);
+
+out:
+	if (vcpu->sigset_active)
+		sigprocmask(SIG_SETMASK, &sigsaved, NULL);
+
+	vcpu_put(vcpu);
+	return r;
+}
+
+int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
+{
+	vcpu_load(vcpu);
+
+	kvm_x86_ops->cache_regs(vcpu);
+
+	regs->rax = vcpu->arch.regs[VCPU_REGS_RAX];
+	regs->rbx = vcpu->arch.regs[VCPU_REGS_RBX];
+	regs->rcx = vcpu->arch.regs[VCPU_REGS_RCX];
+	regs->rdx = vcpu->arch.regs[VCPU_REGS_RDX];
+	regs->rsi = vcpu->arch.regs[VCPU_REGS_RSI];
+	regs->rdi = vcpu->arch.regs[VCPU_REGS_RDI];
+	regs->rsp = vcpu->arch.regs[VCPU_REGS_RSP];
+	regs->rbp = vcpu->arch.regs[VCPU_REGS_RBP];
+#ifdef CONFIG_X86_64
+	regs->r8 = vcpu->arch.regs[VCPU_REGS_R8];
+	regs->r9 = vcpu->arch.regs[VCPU_REGS_R9];
+	regs->r10 = vcpu->arch.regs[VCPU_REGS_R10];
+	regs->r11 = vcpu->arch.regs[VCPU_REGS_R11];
+	regs->r12 = vcpu->arch.regs[VCPU_REGS_R12];
+	regs->r13 = vcpu->arch.regs[VCPU_REGS_R13];
+	regs->r14 = vcpu->arch.regs[VCPU_REGS_R14];
+	regs->r15 = vcpu->arch.regs[VCPU_REGS_R15];
+#endif
+
+	regs->rip = vcpu->arch.rip;
+	regs->rflags = kvm_x86_ops->get_rflags(vcpu);
+
+	/*
+	 * Don't leak debug flags in case they were set for guest debugging
+	 */
+	if (vcpu->guest_debug.enabled && vcpu->guest_debug.singlestep)
+		regs->rflags &= ~(X86_EFLAGS_TF | X86_EFLAGS_RF);
+
+	vcpu_put(vcpu);
+
+	return 0;
+}
+
+int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
+{
+	vcpu_load(vcpu);
+
+	vcpu->arch.regs[VCPU_REGS_RAX] = regs->rax;
+	vcpu->arch.regs[VCPU_REGS_RBX] = regs->rbx;
+	vcpu->arch.regs[VCPU_REGS_RCX] = regs->rcx;
+	vcpu->arch.regs[VCPU_REGS_RDX] = regs->rdx;
+	vcpu->arch.regs[VCPU_REGS_RSI] = regs->rsi;
+	vcpu->arch.regs[VCPU_REGS_RDI] = regs->rdi;
+	vcpu->arch.regs[VCPU_REGS_RSP] = regs->rsp;
+	vcpu->arch.regs[VCPU_REGS_RBP] = regs->rbp;
+#ifdef CONFIG_X86_64
+	vcpu->arch.regs[VCPU_REGS_R8] = regs->r8;
+	vcpu->arch.regs[VCPU_REGS_R9] = regs->r9;
+	vcpu->arch.regs[VCPU_REGS_R10] = regs->r10;
+	vcpu->arch.regs[VCPU_REGS_R11] = regs->r11;
+	vcpu->arch.regs[VCPU_REGS_R12] = regs->r12;
+	vcpu->arch.regs[VCPU_REGS_R13] = regs->r13;
+	vcpu->arch.regs[VCPU_REGS_R14] = regs->r14;
+	vcpu->arch.regs[VCPU_REGS_R15] = regs->r15;
+#endif
+
+	vcpu->arch.rip = regs->rip;
+	kvm_x86_ops->set_rflags(vcpu, regs->rflags);
+
+	kvm_x86_ops->decache_regs(vcpu);
+
+	vcpu_put(vcpu);
+
+	return 0;
+}
+
+static void get_segment(struct kvm_vcpu *vcpu,
+			struct kvm_segment *var, int seg)
+{
+	return kvm_x86_ops->get_segment(vcpu, var, seg);
+}
+
+void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l)
+{
+	struct kvm_segment cs;
+
+	get_segment(vcpu, &cs, VCPU_SREG_CS);
+	*db = cs.db;
+	*l = cs.l;
+}
+EXPORT_SYMBOL_GPL(kvm_get_cs_db_l_bits);
+
+int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
+				  struct kvm_sregs *sregs)
+{
+	struct descriptor_table dt;
+	int pending_vec;
+
+	vcpu_load(vcpu);
+
+	get_segment(vcpu, &sregs->cs, VCPU_SREG_CS);
+	get_segment(vcpu, &sregs->ds, VCPU_SREG_DS);
+	get_segment(vcpu, &sregs->es, VCPU_SREG_ES);
+	get_segment(vcpu, &sregs->fs, VCPU_SREG_FS);
+	get_segment(vcpu, &sregs->gs, VCPU_SREG_GS);
+	get_segment(vcpu, &sregs->ss, VCPU_SREG_SS);
+
+	get_segment(vcpu, &sregs->tr, VCPU_SREG_TR);
+	get_segment(vcpu, &sregs->ldt, VCPU_SREG_LDTR);
+
+	kvm_x86_ops->get_idt(vcpu, &dt);
+	sregs->idt.limit = dt.limit;
+	sregs->idt.base = dt.base;
+	kvm_x86_ops->get_gdt(vcpu, &dt);
+	sregs->gdt.limit = dt.limit;
+	sregs->gdt.base = dt.base;
+
+	kvm_x86_ops->decache_cr4_guest_bits(vcpu);
+	sregs->cr0 = vcpu->arch.cr0;
+	sregs->cr2 = vcpu->arch.cr2;
+	sregs->cr3 = vcpu->arch.cr3;
+	sregs->cr4 = vcpu->arch.cr4;
+	sregs->cr8 = get_cr8(vcpu);
+	sregs->efer = vcpu->arch.shadow_efer;
+	sregs->apic_base = kvm_get_apic_base(vcpu);
+
+	if (irqchip_in_kernel(vcpu->kvm)) {
+		memset(sregs->interrupt_bitmap, 0,
+		       sizeof sregs->interrupt_bitmap);
+		pending_vec = kvm_x86_ops->get_irq(vcpu);
+		if (pending_vec >= 0)
+			set_bit(pending_vec,
+				(unsigned long *)sregs->interrupt_bitmap);
+	} else
+		memcpy(sregs->interrupt_bitmap, vcpu->arch.irq_pending,
+		       sizeof sregs->interrupt_bitmap);
+
+	vcpu_put(vcpu);
+
+	return 0;
+}
+
+static void set_segment(struct kvm_vcpu *vcpu,
+			struct kvm_segment *var, int seg)
+{
+	return kvm_x86_ops->set_segment(vcpu, var, seg);
+}
+
+int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
+				  struct kvm_sregs *sregs)
+{
+	int mmu_reset_needed = 0;
+	int i, pending_vec, max_bits;
+	struct descriptor_table dt;
+
+	vcpu_load(vcpu);
+
+	dt.limit = sregs->idt.limit;
+	dt.base = sregs->idt.base;
+	kvm_x86_ops->set_idt(vcpu, &dt);
+	dt.limit = sregs->gdt.limit;
+	dt.base = sregs->gdt.base;
+	kvm_x86_ops->set_gdt(vcpu, &dt);
+
+	vcpu->arch.cr2 = sregs->cr2;
+	mmu_reset_needed |= vcpu->arch.cr3 != sregs->cr3;
+	vcpu->arch.cr3 = sregs->cr3;
+
+	set_cr8(vcpu, sregs->cr8);
+
+	mmu_reset_needed |= vcpu->arch.shadow_efer != sregs->efer;
+#ifdef CONFIG_X86_64
+	kvm_x86_ops->set_efer(vcpu, sregs->efer);
+#endif
+	kvm_set_apic_base(vcpu, sregs->apic_base);
+
+	kvm_x86_ops->decache_cr4_guest_bits(vcpu);
+
+	mmu_reset_needed |= vcpu->arch.cr0 != sregs->cr0;
+	vcpu->arch.cr0 = sregs->cr0;
+	kvm_x86_ops->set_cr0(vcpu, sregs->cr0);
+
+	mmu_reset_needed |= vcpu->arch.cr4 != sregs->cr4;
+	kvm_x86_ops->set_cr4(vcpu, sregs->cr4);
+	if (!is_long_mode(vcpu) && is_pae(vcpu))
+		load_pdptrs(vcpu, vcpu->arch.cr3);
+
+	if (mmu_reset_needed)
+		kvm_mmu_reset_context(vcpu);
+
+	if (!irqchip_in_kernel(vcpu->kvm)) {
+		memcpy(vcpu->arch.irq_pending, sregs->interrupt_bitmap,
+		       sizeof vcpu->arch.irq_pending);
+		vcpu->arch.irq_summary = 0;
+		for (i = 0; i < ARRAY_SIZE(vcpu->arch.irq_pending); ++i)
+			if (vcpu->arch.irq_pending[i])
+				__set_bit(i, &vcpu->arch.irq_summary);
+	} else {
+		max_bits = (sizeof sregs->interrupt_bitmap) << 3;
+		pending_vec = find_first_bit(
+			(const unsigned long *)sregs->interrupt_bitmap,
+			max_bits);
+		/* Only pending external irq is handled here */
+		if (pending_vec < max_bits) {
+			kvm_x86_ops->set_irq(vcpu, pending_vec);
+			pr_debug("Set back pending irq %d\n",
+				 pending_vec);
+		}
+	}
+
+	set_segment(vcpu, &sregs->cs, VCPU_SREG_CS);
+	set_segment(vcpu, &sregs->ds, VCPU_SREG_DS);
+	set_segment(vcpu, &sregs->es, VCPU_SREG_ES);
+	set_segment(vcpu, &sregs->fs, VCPU_SREG_FS);
+	set_segment(vcpu, &sregs->gs, VCPU_SREG_GS);
+	set_segment(vcpu, &sregs->ss, VCPU_SREG_SS);
+
+	set_segment(vcpu, &sregs->tr, VCPU_SREG_TR);
+	set_segment(vcpu, &sregs->ldt, VCPU_SREG_LDTR);
+
+	vcpu_put(vcpu);
+
+	return 0;
+}
+
+int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
+				    struct kvm_debug_guest *dbg)
+{
+	int r;
+
+	vcpu_load(vcpu);
+
+	r = kvm_x86_ops->set_guest_debug(vcpu, dbg);
+
+	vcpu_put(vcpu);
+
+	return r;
+}
+
+/*
+ * fxsave fpu state.  Taken from x86_64/processor.h.  To be killed when
+ * we have asm/x86/processor.h
+ */
+struct fxsave {
+	u16	cwd;
+	u16	swd;
+	u16	twd;
+	u16	fop;
+	u64	rip;
+	u64	rdp;
+	u32	mxcsr;
+	u32	mxcsr_mask;
+	u32	st_space[32];	/* 8*16 bytes for each FP-reg = 128 bytes */
+#ifdef CONFIG_X86_64
+	u32	xmm_space[64];	/* 16*16 bytes for each XMM-reg = 256 bytes */
+#else
+	u32	xmm_space[32];	/* 8*16 bytes for each XMM-reg = 128 bytes */
+#endif
+};
+
+/*
+ * Translate a guest virtual address to a guest physical address.
+ */
+int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
+				    struct kvm_translation *tr)
+{
+	unsigned long vaddr = tr->linear_address;
+	gpa_t gpa;
+
+	vcpu_load(vcpu);
+	mutex_lock(&vcpu->kvm->lock);
+	gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, vaddr);
+	tr->physical_address = gpa;
+	tr->valid = gpa != UNMAPPED_GVA;
+	tr->writeable = 1;
+	tr->usermode = 0;
+	mutex_unlock(&vcpu->kvm->lock);
+	vcpu_put(vcpu);
+
+	return 0;
+}
+
+int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
+{
+	struct fxsave *fxsave = (struct fxsave *)&vcpu->arch.guest_fx_image;
+
+	vcpu_load(vcpu);
+
+	memcpy(fpu->fpr, fxsave->st_space, 128);
+	fpu->fcw = fxsave->cwd;
+	fpu->fsw = fxsave->swd;
+	fpu->ftwx = fxsave->twd;
+	fpu->last_opcode = fxsave->fop;
+	fpu->last_ip = fxsave->rip;
+	fpu->last_dp = fxsave->rdp;
+	memcpy(fpu->xmm, fxsave->xmm_space, sizeof fxsave->xmm_space);
+
+	vcpu_put(vcpu);
+
+	return 0;
+}
+
+int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
+{
+	struct fxsave *fxsave = (struct fxsave *)&vcpu->arch.guest_fx_image;
+
+	vcpu_load(vcpu);
+
+	memcpy(fxsave->st_space, fpu->fpr, 128);
+	fxsave->cwd = fpu->fcw;
+	fxsave->swd = fpu->fsw;
+	fxsave->twd = fpu->ftwx;
+	fxsave->fop = fpu->last_opcode;
+	fxsave->rip = fpu->last_ip;
+	fxsave->rdp = fpu->last_dp;
+	memcpy(fxsave->xmm_space, fpu->xmm, sizeof fxsave->xmm_space);
+
+	vcpu_put(vcpu);
+
+	return 0;
+}
+
+void fx_init(struct kvm_vcpu *vcpu)
+{
+	unsigned after_mxcsr_mask;
+
+	/* Initialize guest FPU by resetting ours and saving into guest's */
+	preempt_disable();
+	fx_save(&vcpu->arch.host_fx_image);
+	fpu_init();
+	fx_save(&vcpu->arch.guest_fx_image);
+	fx_restore(&vcpu->arch.host_fx_image);
+	preempt_enable();
+
+	vcpu->arch.cr0 |= X86_CR0_ET;
+	after_mxcsr_mask = offsetof(struct i387_fxsave_struct, st_space);
+	vcpu->arch.guest_fx_image.mxcsr = 0x1f80;
+	memset((void *)&vcpu->arch.guest_fx_image + after_mxcsr_mask,
+	       0, sizeof(struct i387_fxsave_struct) - after_mxcsr_mask);
+}
+EXPORT_SYMBOL_GPL(fx_init);
+
+void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
+{
+	if (!vcpu->fpu_active || vcpu->guest_fpu_loaded)
+		return;
+
+	vcpu->guest_fpu_loaded = 1;
+	fx_save(&vcpu->arch.host_fx_image);
+	fx_restore(&vcpu->arch.guest_fx_image);
+}
+EXPORT_SYMBOL_GPL(kvm_load_guest_fpu);
+
+void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
+{
+	if (!vcpu->guest_fpu_loaded)
+		return;
+
+	vcpu->guest_fpu_loaded = 0;
+	fx_save(&vcpu->arch.guest_fx_image);
+	fx_restore(&vcpu->arch.host_fx_image);
+	++vcpu->stat.fpu_reload;
+}
+EXPORT_SYMBOL_GPL(kvm_put_guest_fpu);
+
+void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
+{
+	kvm_x86_ops->vcpu_free(vcpu);
+}
+
+struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
+						unsigned int id)
+{
+	return kvm_x86_ops->vcpu_create(kvm, id);
+}
+
+int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
+{
+	int r;
+
+	/* We do fxsave: this must be aligned. */
+	BUG_ON((unsigned long)&vcpu->arch.host_fx_image & 0xF);
+
+	vcpu_load(vcpu);
+	r = kvm_arch_vcpu_reset(vcpu);
+	if (r == 0)
+		r = kvm_mmu_setup(vcpu);
+	vcpu_put(vcpu);
+	if (r < 0)
+		goto free_vcpu;
+
+	return 0;
+free_vcpu:
+	kvm_x86_ops->vcpu_free(vcpu);
+	return r;
+}
+
+void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
+{
+	vcpu_load(vcpu);
+	kvm_mmu_unload(vcpu);
+	vcpu_put(vcpu);
+
+	kvm_x86_ops->vcpu_free(vcpu);
+}
+
+int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu)
+{
+	return kvm_x86_ops->vcpu_reset(vcpu);
+}
+
+void kvm_arch_hardware_enable(void *garbage)
+{
+	kvm_x86_ops->hardware_enable(garbage);
+}
+
+void kvm_arch_hardware_disable(void *garbage)
+{
+	kvm_x86_ops->hardware_disable(garbage);
+}
+
+int kvm_arch_hardware_setup(void)
+{
+	return kvm_x86_ops->hardware_setup();
+}
+
+void kvm_arch_hardware_unsetup(void)
+{
+	kvm_x86_ops->hardware_unsetup();
+}
+
+void kvm_arch_check_processor_compat(void *rtn)
+{
+	kvm_x86_ops->check_processor_compatibility(rtn);
+}
+
+int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
+{
+	struct page *page;
+	struct kvm *kvm;
+	int r;
+
+	BUG_ON(vcpu->kvm == NULL);
+	kvm = vcpu->kvm;
+
+	vcpu->arch.mmu.root_hpa = INVALID_PAGE;
+	if (!irqchip_in_kernel(kvm) || vcpu->vcpu_id == 0)
+		vcpu->arch.mp_state = VCPU_MP_STATE_RUNNABLE;
+	else
+		vcpu->arch.mp_state = VCPU_MP_STATE_UNINITIALIZED;
+
+	page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+	if (!page) {
+		r = -ENOMEM;
+		goto fail;
+	}
+	vcpu->arch.pio_data = page_address(page);
+
+	r = kvm_mmu_create(vcpu);
+	if (r < 0)
+		goto fail_free_pio_data;
+
+	if (irqchip_in_kernel(kvm)) {
+		r = kvm_create_lapic(vcpu);
+		if (r < 0)
+			goto fail_mmu_destroy;
+	}
+
+	return 0;
+
+fail_mmu_destroy:
+	kvm_mmu_destroy(vcpu);
+fail_free_pio_data:
+	free_page((unsigned long)vcpu->arch.pio_data);
+fail:
+	return r;
+}
+
+void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
+{
+	kvm_free_lapic(vcpu);
+	kvm_mmu_destroy(vcpu);
+	free_page((unsigned long)vcpu->arch.pio_data);
+}
+
+struct  kvm *kvm_arch_create_vm(void)
+{
+	struct kvm *kvm = kzalloc(sizeof(struct kvm), GFP_KERNEL);
+
+	if (!kvm)
+		return ERR_PTR(-ENOMEM);
+
+	INIT_LIST_HEAD(&kvm->arch.active_mmu_pages);
+
+	return kvm;
+}
+
+static void kvm_unload_vcpu_mmu(struct kvm_vcpu *vcpu)
+{
+	vcpu_load(vcpu);
+	kvm_mmu_unload(vcpu);
+	vcpu_put(vcpu);
+}
+
+static void kvm_free_vcpus(struct kvm *kvm)
+{
+	unsigned int i;
+
+	/*
+	 * Unpin any mmu pages first.
+	 */
+	for (i = 0; i < KVM_MAX_VCPUS; ++i)
+		if (kvm->vcpus[i])
+			kvm_unload_vcpu_mmu(kvm->vcpus[i]);
+	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+		if (kvm->vcpus[i]) {
+			kvm_arch_vcpu_free(kvm->vcpus[i]);
+			kvm->vcpus[i] = NULL;
+		}
+	}
+
+}
+
+void kvm_arch_destroy_vm(struct kvm *kvm)
+{
+	kfree(kvm->arch.vpic);
+	kfree(kvm->arch.vioapic);
+	kvm_free_vcpus(kvm);
+	kvm_free_physmem(kvm);
+	kfree(kvm);
+}
+
+int kvm_arch_set_memory_region(struct kvm *kvm,
+				struct kvm_userspace_memory_region *mem,
+				struct kvm_memory_slot old,
+				int user_alloc)
+{
+	int npages = mem->memory_size >> PAGE_SHIFT;
+	struct kvm_memory_slot *memslot = &kvm->memslots[mem->slot];
+
+	/*To keep backward compatibility with older userspace,
+	 *x86 needs to hanlde !user_alloc case.
+	 */
+	if (!user_alloc) {
+		if (npages && !old.rmap) {
+			down_write(&current->mm->mmap_sem);
+			memslot->userspace_addr = do_mmap(NULL, 0,
+						     npages * PAGE_SIZE,
+						     PROT_READ | PROT_WRITE,
+						     MAP_SHARED | MAP_ANONYMOUS,
+						     0);
+			up_write(&current->mm->mmap_sem);
+
+			if (IS_ERR((void *)memslot->userspace_addr))
+				return PTR_ERR((void *)memslot->userspace_addr);
+		} else {
+			if (!old.user_alloc && old.rmap) {
+				int ret;
+
+				down_write(&current->mm->mmap_sem);
+				ret = do_munmap(current->mm, old.userspace_addr,
+						old.npages * PAGE_SIZE);
+				up_write(&current->mm->mmap_sem);
+				if (ret < 0)
+					printk(KERN_WARNING
+				       "kvm_vm_ioctl_set_memory_region: "
+				       "failed to munmap memory\n");
+			}
+		}
+	}
+
+	if (!kvm->arch.n_requested_mmu_pages) {
+		unsigned int nr_mmu_pages = kvm_mmu_calculate_mmu_pages(kvm);
+		kvm_mmu_change_mmu_pages(kvm, nr_mmu_pages);
+	}
+
+	kvm_mmu_slot_remove_write_access(kvm, mem->slot);
+	kvm_flush_remote_tlbs(kvm);
+
+	return 0;
+}
+
+int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.mp_state == VCPU_MP_STATE_RUNNABLE
+	       || vcpu->arch.mp_state == VCPU_MP_STATE_SIPI_RECEIVED;
+}
diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
new file mode 100644
index 000000000000..79586003397a
--- /dev/null
+++ b/arch/x86/kvm/x86_emulate.c
@@ -0,0 +1,1912 @@
+/******************************************************************************
+ * x86_emulate.c
+ *
+ * Generic x86 (32-bit and 64-bit) instruction decoder and emulator.
+ *
+ * Copyright (c) 2005 Keir Fraser
+ *
+ * Linux coding style, mod r/m decoder, segment base fixes, real-mode
+ * privileged instructions:
+ *
+ * Copyright (C) 2006 Qumranet
+ *
+ *   Avi Kivity <avi@qumranet.com>
+ *   Yaniv Kamay <yaniv@qumranet.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ * From: xen-unstable 10676:af9809f51f81a3c43f276f00c81a52ef558afda4
+ */
+
+#ifndef __KERNEL__
+#include <stdio.h>
+#include <stdint.h>
+#include <public/xen.h>
+#define DPRINTF(_f, _a ...) printf(_f , ## _a)
+#else
+#include <linux/kvm_host.h>
+#define DPRINTF(x...) do {} while (0)
+#endif
+#include <linux/module.h>
+#include <asm/kvm_x86_emulate.h>
+
+/*
+ * Opcode effective-address decode tables.
+ * Note that we only emulate instructions that have at least one memory
+ * operand (excluding implicit stack references). We assume that stack
+ * references and instruction fetches will never occur in special memory
+ * areas that require emulation. So, for example, 'mov <imm>,<reg>' need
+ * not be handled.
+ */
+
+/* Operand sizes: 8-bit operands or specified/overridden size. */
+#define ByteOp      (1<<0)	/* 8-bit operands. */
+/* Destination operand type. */
+#define ImplicitOps (1<<1)	/* Implicit in opcode. No generic decode. */
+#define DstReg      (2<<1)	/* Register operand. */
+#define DstMem      (3<<1)	/* Memory operand. */
+#define DstMask     (3<<1)
+/* Source operand type. */
+#define SrcNone     (0<<3)	/* No source operand. */
+#define SrcImplicit (0<<3)	/* Source operand is implicit in the opcode. */
+#define SrcReg      (1<<3)	/* Register operand. */
+#define SrcMem      (2<<3)	/* Memory operand. */
+#define SrcMem16    (3<<3)	/* Memory operand (16-bit). */
+#define SrcMem32    (4<<3)	/* Memory operand (32-bit). */
+#define SrcImm      (5<<3)	/* Immediate operand. */
+#define SrcImmByte  (6<<3)	/* 8-bit sign-extended immediate operand. */
+#define SrcMask     (7<<3)
+/* Generic ModRM decode. */
+#define ModRM       (1<<6)
+/* Destination is only written; never read. */
+#define Mov         (1<<7)
+#define BitOp       (1<<8)
+#define MemAbs      (1<<9)      /* Memory operand is absolute displacement */
+#define String      (1<<10)     /* String instruction (rep capable) */
+#define Stack       (1<<11)     /* Stack instruction (push/pop) */
+
+static u16 opcode_table[256] = {
+	/* 0x00 - 0x07 */
+	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
+	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
+	0, 0, 0, 0,
+	/* 0x08 - 0x0F */
+	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
+	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
+	0, 0, 0, 0,
+	/* 0x10 - 0x17 */
+	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
+	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
+	0, 0, 0, 0,
+	/* 0x18 - 0x1F */
+	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
+	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
+	0, 0, 0, 0,
+	/* 0x20 - 0x27 */
+	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
+	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
+	SrcImmByte, SrcImm, 0, 0,
+	/* 0x28 - 0x2F */
+	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
+	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
+	0, 0, 0, 0,
+	/* 0x30 - 0x37 */
+	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
+	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
+	0, 0, 0, 0,
+	/* 0x38 - 0x3F */
+	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
+	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
+	0, 0, 0, 0,
+	/* 0x40 - 0x47 */
+	DstReg, DstReg, DstReg, DstReg, DstReg, DstReg, DstReg, DstReg,
+	/* 0x48 - 0x4F */
+	DstReg, DstReg, DstReg, DstReg,	DstReg, DstReg, DstReg, DstReg,
+	/* 0x50 - 0x57 */
+	SrcReg | Stack, SrcReg | Stack, SrcReg | Stack, SrcReg | Stack,
+	SrcReg | Stack, SrcReg | Stack, SrcReg | Stack, SrcReg | Stack,
+	/* 0x58 - 0x5F */
+	DstReg | Stack, DstReg | Stack, DstReg | Stack, DstReg | Stack,
+	DstReg | Stack, DstReg | Stack, DstReg | Stack, DstReg | Stack,
+	/* 0x60 - 0x67 */
+	0, 0, 0, DstReg | SrcMem32 | ModRM | Mov /* movsxd (x86/64) */ ,
+	0, 0, 0, 0,
+	/* 0x68 - 0x6F */
+	0, 0, ImplicitOps | Mov | Stack, 0,
+	SrcNone  | ByteOp  | ImplicitOps, SrcNone  | ImplicitOps, /* insb, insw/insd */
+	SrcNone  | ByteOp  | ImplicitOps, SrcNone  | ImplicitOps, /* outsb, outsw/outsd */
+	/* 0x70 - 0x77 */
+	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
+	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
+	/* 0x78 - 0x7F */
+	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
+	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
+	/* 0x80 - 0x87 */
+	ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImm | ModRM,
+	ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM,
+	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
+	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
+	/* 0x88 - 0x8F */
+	ByteOp | DstMem | SrcReg | ModRM | Mov, DstMem | SrcReg | ModRM | Mov,
+	ByteOp | DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
+	0, ModRM | DstReg, 0, DstMem | SrcNone | ModRM | Mov | Stack,
+	/* 0x90 - 0x9F */
+	0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, ImplicitOps | Stack, ImplicitOps | Stack, 0, 0,
+	/* 0xA0 - 0xA7 */
+	ByteOp | DstReg | SrcMem | Mov | MemAbs, DstReg | SrcMem | Mov | MemAbs,
+	ByteOp | DstMem | SrcReg | Mov | MemAbs, DstMem | SrcReg | Mov | MemAbs,
+	ByteOp | ImplicitOps | Mov | String, ImplicitOps | Mov | String,
+	ByteOp | ImplicitOps | String, ImplicitOps | String,
+	/* 0xA8 - 0xAF */
+	0, 0, ByteOp | ImplicitOps | Mov | String, ImplicitOps | Mov | String,
+	ByteOp | ImplicitOps | Mov | String, ImplicitOps | Mov | String,
+	ByteOp | ImplicitOps | String, ImplicitOps | String,
+	/* 0xB0 - 0xBF */
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0xC0 - 0xC7 */
+	ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM,
+	0, ImplicitOps | Stack, 0, 0,
+	ByteOp | DstMem | SrcImm | ModRM | Mov, DstMem | SrcImm | ModRM | Mov,
+	/* 0xC8 - 0xCF */
+	0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0xD0 - 0xD7 */
+	ByteOp | DstMem | SrcImplicit | ModRM, DstMem | SrcImplicit | ModRM,
+	ByteOp | DstMem | SrcImplicit | ModRM, DstMem | SrcImplicit | ModRM,
+	0, 0, 0, 0,
+	/* 0xD8 - 0xDF */
+	0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0xE0 - 0xE7 */
+	0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0xE8 - 0xEF */
+	ImplicitOps | Stack, SrcImm|ImplicitOps, 0, SrcImmByte|ImplicitOps,
+	0, 0, 0, 0,
+	/* 0xF0 - 0xF7 */
+	0, 0, 0, 0,
+	ImplicitOps, ImplicitOps,
+	ByteOp | DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM,
+	/* 0xF8 - 0xFF */
+	ImplicitOps, 0, ImplicitOps, ImplicitOps,
+	0, 0, ByteOp | DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM
+};
+
+static u16 twobyte_table[256] = {
+	/* 0x00 - 0x0F */
+	0, SrcMem | ModRM | DstReg, 0, 0, 0, 0, ImplicitOps, 0,
+	ImplicitOps, ImplicitOps, 0, 0, 0, ImplicitOps | ModRM, 0, 0,
+	/* 0x10 - 0x1F */
+	0, 0, 0, 0, 0, 0, 0, 0, ImplicitOps | ModRM, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x20 - 0x2F */
+	ModRM | ImplicitOps, ModRM, ModRM | ImplicitOps, ModRM, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x30 - 0x3F */
+	ImplicitOps, 0, ImplicitOps, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x40 - 0x47 */
+	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
+	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
+	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
+	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
+	/* 0x48 - 0x4F */
+	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
+	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
+	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
+	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
+	/* 0x50 - 0x5F */
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x60 - 0x6F */
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x70 - 0x7F */
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x80 - 0x8F */
+	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
+	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
+	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
+	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
+	/* 0x90 - 0x9F */
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0xA0 - 0xA7 */
+	0, 0, 0, DstMem | SrcReg | ModRM | BitOp, 0, 0, 0, 0,
+	/* 0xA8 - 0xAF */
+	0, 0, 0, DstMem | SrcReg | ModRM | BitOp, 0, 0, 0, 0,
+	/* 0xB0 - 0xB7 */
+	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM, 0,
+	    DstMem | SrcReg | ModRM | BitOp,
+	0, 0, ByteOp | DstReg | SrcMem | ModRM | Mov,
+	    DstReg | SrcMem16 | ModRM | Mov,
+	/* 0xB8 - 0xBF */
+	0, 0, DstMem | SrcImmByte | ModRM, DstMem | SrcReg | ModRM | BitOp,
+	0, 0, ByteOp | DstReg | SrcMem | ModRM | Mov,
+	    DstReg | SrcMem16 | ModRM | Mov,
+	/* 0xC0 - 0xCF */
+	0, 0, 0, DstMem | SrcReg | ModRM | Mov, 0, 0, 0, ImplicitOps | ModRM,
+	0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0xD0 - 0xDF */
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0xE0 - 0xEF */
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0xF0 - 0xFF */
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/* EFLAGS bit definitions. */
+#define EFLG_OF (1<<11)
+#define EFLG_DF (1<<10)
+#define EFLG_SF (1<<7)
+#define EFLG_ZF (1<<6)
+#define EFLG_AF (1<<4)
+#define EFLG_PF (1<<2)
+#define EFLG_CF (1<<0)
+
+/*
+ * Instruction emulation:
+ * Most instructions are emulated directly via a fragment of inline assembly
+ * code. This allows us to save/restore EFLAGS and thus very easily pick up
+ * any modified flags.
+ */
+
+#if defined(CONFIG_X86_64)
+#define _LO32 "k"		/* force 32-bit operand */
+#define _STK  "%%rsp"		/* stack pointer */
+#elif defined(__i386__)
+#define _LO32 ""		/* force 32-bit operand */
+#define _STK  "%%esp"		/* stack pointer */
+#endif
+
+/*
+ * These EFLAGS bits are restored from saved value during emulation, and
+ * any changes are written back to the saved value after emulation.
+ */
+#define EFLAGS_MASK (EFLG_OF|EFLG_SF|EFLG_ZF|EFLG_AF|EFLG_PF|EFLG_CF)
+
+/* Before executing instruction: restore necessary bits in EFLAGS. */
+#define _PRE_EFLAGS(_sav, _msk, _tmp)					\
+	/* EFLAGS = (_sav & _msk) | (EFLAGS & ~_msk); _sav &= ~_msk; */ \
+	"movl %"_sav",%"_LO32 _tmp"; "                                  \
+	"push %"_tmp"; "                                                \
+	"push %"_tmp"; "                                                \
+	"movl %"_msk",%"_LO32 _tmp"; "                                  \
+	"andl %"_LO32 _tmp",("_STK"); "                                 \
+	"pushf; "                                                       \
+	"notl %"_LO32 _tmp"; "                                          \
+	"andl %"_LO32 _tmp",("_STK"); "                                 \
+	"andl %"_LO32 _tmp","__stringify(BITS_PER_LONG/4)"("_STK"); "	\
+	"pop  %"_tmp"; "                                                \
+	"orl  %"_LO32 _tmp",("_STK"); "                                 \
+	"popf; "                                                        \
+	"pop  %"_sav"; "
+
+/* After executing instruction: write-back necessary bits in EFLAGS. */
+#define _POST_EFLAGS(_sav, _msk, _tmp) \
+	/* _sav |= EFLAGS & _msk; */		\
+	"pushf; "				\
+	"pop  %"_tmp"; "			\
+	"andl %"_msk",%"_LO32 _tmp"; "		\
+	"orl  %"_LO32 _tmp",%"_sav"; "
+
+/* Raw emulation: instruction has two explicit operands. */
+#define __emulate_2op_nobyte(_op,_src,_dst,_eflags,_wx,_wy,_lx,_ly,_qx,_qy) \
+	do { 								    \
+		unsigned long _tmp;					    \
+									    \
+		switch ((_dst).bytes) {					    \
+		case 2:							    \
+			__asm__ __volatile__ (				    \
+				_PRE_EFLAGS("0", "4", "2")		    \
+				_op"w %"_wx"3,%1; "			    \
+				_POST_EFLAGS("0", "4", "2")		    \
+				: "=m" (_eflags), "=m" ((_dst).val),        \
+				  "=&r" (_tmp)				    \
+				: _wy ((_src).val), "i" (EFLAGS_MASK));     \
+			break;						    \
+		case 4:							    \
+			__asm__ __volatile__ (				    \
+				_PRE_EFLAGS("0", "4", "2")		    \
+				_op"l %"_lx"3,%1; "			    \
+				_POST_EFLAGS("0", "4", "2")		    \
+				: "=m" (_eflags), "=m" ((_dst).val),	    \
+				  "=&r" (_tmp)				    \
+				: _ly ((_src).val), "i" (EFLAGS_MASK));     \
+			break;						    \
+		case 8:							    \
+			__emulate_2op_8byte(_op, _src, _dst,		    \
+					    _eflags, _qx, _qy);		    \
+			break;						    \
+		}							    \
+	} while (0)
+
+#define __emulate_2op(_op,_src,_dst,_eflags,_bx,_by,_wx,_wy,_lx,_ly,_qx,_qy) \
+	do {								     \
+		unsigned long _tmp;					     \
+		switch ((_dst).bytes) {				             \
+		case 1:							     \
+			__asm__ __volatile__ (				     \
+				_PRE_EFLAGS("0", "4", "2")		     \
+				_op"b %"_bx"3,%1; "			     \
+				_POST_EFLAGS("0", "4", "2")		     \
+				: "=m" (_eflags), "=m" ((_dst).val),	     \
+				  "=&r" (_tmp)				     \
+				: _by ((_src).val), "i" (EFLAGS_MASK));      \
+			break;						     \
+		default:						     \
+			__emulate_2op_nobyte(_op, _src, _dst, _eflags,	     \
+					     _wx, _wy, _lx, _ly, _qx, _qy);  \
+			break;						     \
+		}							     \
+	} while (0)
+
+/* Source operand is byte-sized and may be restricted to just %cl. */
+#define emulate_2op_SrcB(_op, _src, _dst, _eflags)                      \
+	__emulate_2op(_op, _src, _dst, _eflags,				\
+		      "b", "c", "b", "c", "b", "c", "b", "c")
+
+/* Source operand is byte, word, long or quad sized. */
+#define emulate_2op_SrcV(_op, _src, _dst, _eflags)                      \
+	__emulate_2op(_op, _src, _dst, _eflags,				\
+		      "b", "q", "w", "r", _LO32, "r", "", "r")
+
+/* Source operand is word, long or quad sized. */
+#define emulate_2op_SrcV_nobyte(_op, _src, _dst, _eflags)               \
+	__emulate_2op_nobyte(_op, _src, _dst, _eflags,			\
+			     "w", "r", _LO32, "r", "", "r")
+
+/* Instruction has only one explicit operand (no source operand). */
+#define emulate_1op(_op, _dst, _eflags)                                    \
+	do {								\
+		unsigned long _tmp;					\
+									\
+		switch ((_dst).bytes) {				        \
+		case 1:							\
+			__asm__ __volatile__ (				\
+				_PRE_EFLAGS("0", "3", "2")		\
+				_op"b %1; "				\
+				_POST_EFLAGS("0", "3", "2")		\
+				: "=m" (_eflags), "=m" ((_dst).val),	\
+				  "=&r" (_tmp)				\
+				: "i" (EFLAGS_MASK));			\
+			break;						\
+		case 2:							\
+			__asm__ __volatile__ (				\
+				_PRE_EFLAGS("0", "3", "2")		\
+				_op"w %1; "				\
+				_POST_EFLAGS("0", "3", "2")		\
+				: "=m" (_eflags), "=m" ((_dst).val),	\
+				  "=&r" (_tmp)				\
+				: "i" (EFLAGS_MASK));			\
+			break;						\
+		case 4:							\
+			__asm__ __volatile__ (				\
+				_PRE_EFLAGS("0", "3", "2")		\
+				_op"l %1; "				\
+				_POST_EFLAGS("0", "3", "2")		\
+				: "=m" (_eflags), "=m" ((_dst).val),	\
+				  "=&r" (_tmp)				\
+				: "i" (EFLAGS_MASK));			\
+			break;						\
+		case 8:							\
+			__emulate_1op_8byte(_op, _dst, _eflags);	\
+			break;						\
+		}							\
+	} while (0)
+
+/* Emulate an instruction with quadword operands (x86/64 only). */
+#if defined(CONFIG_X86_64)
+#define __emulate_2op_8byte(_op, _src, _dst, _eflags, _qx, _qy)           \
+	do {								  \
+		__asm__ __volatile__ (					  \
+			_PRE_EFLAGS("0", "4", "2")			  \
+			_op"q %"_qx"3,%1; "				  \
+			_POST_EFLAGS("0", "4", "2")			  \
+			: "=m" (_eflags), "=m" ((_dst).val), "=&r" (_tmp) \
+			: _qy ((_src).val), "i" (EFLAGS_MASK));		\
+	} while (0)
+
+#define __emulate_1op_8byte(_op, _dst, _eflags)                           \
+	do {								  \
+		__asm__ __volatile__ (					  \
+			_PRE_EFLAGS("0", "3", "2")			  \
+			_op"q %1; "					  \
+			_POST_EFLAGS("0", "3", "2")			  \
+			: "=m" (_eflags), "=m" ((_dst).val), "=&r" (_tmp) \
+			: "i" (EFLAGS_MASK));				  \
+	} while (0)
+
+#elif defined(__i386__)
+#define __emulate_2op_8byte(_op, _src, _dst, _eflags, _qx, _qy)
+#define __emulate_1op_8byte(_op, _dst, _eflags)
+#endif				/* __i386__ */
+
+/* Fetch next part of the instruction being emulated. */
+#define insn_fetch(_type, _size, _eip)                                  \
+({	unsigned long _x;						\
+	rc = do_insn_fetch(ctxt, ops, (_eip), &_x, (_size));		\
+	if (rc != 0)							\
+		goto done;						\
+	(_eip) += (_size);						\
+	(_type)_x;							\
+})
+
+/* Access/update address held in a register, based on addressing mode. */
+#define address_mask(reg)						\
+	((c->ad_bytes == sizeof(unsigned long)) ? 			\
+		(reg) :	((reg) & ((1UL << (c->ad_bytes << 3)) - 1)))
+#define register_address(base, reg)                                     \
+	((base) + address_mask(reg))
+#define register_address_increment(reg, inc)                            \
+	do {								\
+		/* signed type ensures sign extension to long */        \
+		int _inc = (inc);					\
+		if (c->ad_bytes == sizeof(unsigned long))		\
+			(reg) += _inc;					\
+		else							\
+			(reg) = ((reg) & 				\
+				 ~((1UL << (c->ad_bytes << 3)) - 1)) |	\
+				(((reg) + _inc) &			\
+				 ((1UL << (c->ad_bytes << 3)) - 1));	\
+	} while (0)
+
+#define JMP_REL(rel) 							\
+	do {								\
+		register_address_increment(c->eip, rel);		\
+	} while (0)
+
+static int do_fetch_insn_byte(struct x86_emulate_ctxt *ctxt,
+			      struct x86_emulate_ops *ops,
+			      unsigned long linear, u8 *dest)
+{
+	struct fetch_cache *fc = &ctxt->decode.fetch;
+	int rc;
+	int size;
+
+	if (linear < fc->start || linear >= fc->end) {
+		size = min(15UL, PAGE_SIZE - offset_in_page(linear));
+		rc = ops->read_std(linear, fc->data, size, ctxt->vcpu);
+		if (rc)
+			return rc;
+		fc->start = linear;
+		fc->end = linear + size;
+	}
+	*dest = fc->data[linear - fc->start];
+	return 0;
+}
+
+static int do_insn_fetch(struct x86_emulate_ctxt *ctxt,
+			 struct x86_emulate_ops *ops,
+			 unsigned long eip, void *dest, unsigned size)
+{
+	int rc = 0;
+
+	eip += ctxt->cs_base;
+	while (size--) {
+		rc = do_fetch_insn_byte(ctxt, ops, eip++, dest++);
+		if (rc)
+			return rc;
+	}
+	return 0;
+}
+
+/*
+ * Given the 'reg' portion of a ModRM byte, and a register block, return a
+ * pointer into the block that addresses the relevant register.
+ * @highbyte_regs specifies whether to decode AH,CH,DH,BH.
+ */
+static void *decode_register(u8 modrm_reg, unsigned long *regs,
+			     int highbyte_regs)
+{
+	void *p;
+
+	p = &regs[modrm_reg];
+	if (highbyte_regs && modrm_reg >= 4 && modrm_reg < 8)
+		p = (unsigned char *)&regs[modrm_reg & 3] + 1;
+	return p;
+}
+
+static int read_descriptor(struct x86_emulate_ctxt *ctxt,
+			   struct x86_emulate_ops *ops,
+			   void *ptr,
+			   u16 *size, unsigned long *address, int op_bytes)
+{
+	int rc;
+
+	if (op_bytes == 2)
+		op_bytes = 3;
+	*address = 0;
+	rc = ops->read_std((unsigned long)ptr, (unsigned long *)size, 2,
+			   ctxt->vcpu);
+	if (rc)
+		return rc;
+	rc = ops->read_std((unsigned long)ptr + 2, address, op_bytes,
+			   ctxt->vcpu);
+	return rc;
+}
+
+static int test_cc(unsigned int condition, unsigned int flags)
+{
+	int rc = 0;
+
+	switch ((condition & 15) >> 1) {
+	case 0: /* o */
+		rc |= (flags & EFLG_OF);
+		break;
+	case 1: /* b/c/nae */
+		rc |= (flags & EFLG_CF);
+		break;
+	case 2: /* z/e */
+		rc |= (flags & EFLG_ZF);
+		break;
+	case 3: /* be/na */
+		rc |= (flags & (EFLG_CF|EFLG_ZF));
+		break;
+	case 4: /* s */
+		rc |= (flags & EFLG_SF);
+		break;
+	case 5: /* p/pe */
+		rc |= (flags & EFLG_PF);
+		break;
+	case 7: /* le/ng */
+		rc |= (flags & EFLG_ZF);
+		/* fall through */
+	case 6: /* l/nge */
+		rc |= (!(flags & EFLG_SF) != !(flags & EFLG_OF));
+		break;
+	}
+
+	/* Odd condition identifiers (lsb == 1) have inverted sense. */
+	return (!!rc ^ (condition & 1));
+}
+
+static void decode_register_operand(struct operand *op,
+				    struct decode_cache *c,
+				    int inhibit_bytereg)
+{
+	unsigned reg = c->modrm_reg;
+	int highbyte_regs = c->rex_prefix == 0;
+
+	if (!(c->d & ModRM))
+		reg = (c->b & 7) | ((c->rex_prefix & 1) << 3);
+	op->type = OP_REG;
+	if ((c->d & ByteOp) && !inhibit_bytereg) {
+		op->ptr = decode_register(reg, c->regs, highbyte_regs);
+		op->val = *(u8 *)op->ptr;
+		op->bytes = 1;
+	} else {
+		op->ptr = decode_register(reg, c->regs, 0);
+		op->bytes = c->op_bytes;
+		switch (op->bytes) {
+		case 2:
+			op->val = *(u16 *)op->ptr;
+			break;
+		case 4:
+			op->val = *(u32 *)op->ptr;
+			break;
+		case 8:
+			op->val = *(u64 *) op->ptr;
+			break;
+		}
+	}
+	op->orig_val = op->val;
+}
+
+static int decode_modrm(struct x86_emulate_ctxt *ctxt,
+			struct x86_emulate_ops *ops)
+{
+	struct decode_cache *c = &ctxt->decode;
+	u8 sib;
+	int index_reg = 0, base_reg = 0, scale, rip_relative = 0;
+	int rc = 0;
+
+	if (c->rex_prefix) {
+		c->modrm_reg = (c->rex_prefix & 4) << 1;	/* REX.R */
+		index_reg = (c->rex_prefix & 2) << 2; /* REX.X */
+		c->modrm_rm = base_reg = (c->rex_prefix & 1) << 3; /* REG.B */
+	}
+
+	c->modrm = insn_fetch(u8, 1, c->eip);
+	c->modrm_mod |= (c->modrm & 0xc0) >> 6;
+	c->modrm_reg |= (c->modrm & 0x38) >> 3;
+	c->modrm_rm |= (c->modrm & 0x07);
+	c->modrm_ea = 0;
+	c->use_modrm_ea = 1;
+
+	if (c->modrm_mod == 3) {
+		c->modrm_val = *(unsigned long *)
+			decode_register(c->modrm_rm, c->regs, c->d & ByteOp);
+		return rc;
+	}
+
+	if (c->ad_bytes == 2) {
+		unsigned bx = c->regs[VCPU_REGS_RBX];
+		unsigned bp = c->regs[VCPU_REGS_RBP];
+		unsigned si = c->regs[VCPU_REGS_RSI];
+		unsigned di = c->regs[VCPU_REGS_RDI];
+
+		/* 16-bit ModR/M decode. */
+		switch (c->modrm_mod) {
+		case 0:
+			if (c->modrm_rm == 6)
+				c->modrm_ea += insn_fetch(u16, 2, c->eip);
+			break;
+		case 1:
+			c->modrm_ea += insn_fetch(s8, 1, c->eip);
+			break;
+		case 2:
+			c->modrm_ea += insn_fetch(u16, 2, c->eip);
+			break;
+		}
+		switch (c->modrm_rm) {
+		case 0:
+			c->modrm_ea += bx + si;
+			break;
+		case 1:
+			c->modrm_ea += bx + di;
+			break;
+		case 2:
+			c->modrm_ea += bp + si;
+			break;
+		case 3:
+			c->modrm_ea += bp + di;
+			break;
+		case 4:
+			c->modrm_ea += si;
+			break;
+		case 5:
+			c->modrm_ea += di;
+			break;
+		case 6:
+			if (c->modrm_mod != 0)
+				c->modrm_ea += bp;
+			break;
+		case 7:
+			c->modrm_ea += bx;
+			break;
+		}
+		if (c->modrm_rm == 2 || c->modrm_rm == 3 ||
+		    (c->modrm_rm == 6 && c->modrm_mod != 0))
+			if (!c->override_base)
+				c->override_base = &ctxt->ss_base;
+		c->modrm_ea = (u16)c->modrm_ea;
+	} else {
+		/* 32/64-bit ModR/M decode. */
+		switch (c->modrm_rm) {
+		case 4:
+		case 12:
+			sib = insn_fetch(u8, 1, c->eip);
+			index_reg |= (sib >> 3) & 7;
+			base_reg |= sib & 7;
+			scale = sib >> 6;
+
+			switch (base_reg) {
+			case 5:
+				if (c->modrm_mod != 0)
+					c->modrm_ea += c->regs[base_reg];
+				else
+					c->modrm_ea +=
+						insn_fetch(s32, 4, c->eip);
+				break;
+			default:
+				c->modrm_ea += c->regs[base_reg];
+			}
+			switch (index_reg) {
+			case 4:
+				break;
+			default:
+				c->modrm_ea += c->regs[index_reg] << scale;
+			}
+			break;
+		case 5:
+			if (c->modrm_mod != 0)
+				c->modrm_ea += c->regs[c->modrm_rm];
+			else if (ctxt->mode == X86EMUL_MODE_PROT64)
+				rip_relative = 1;
+			break;
+		default:
+			c->modrm_ea += c->regs[c->modrm_rm];
+			break;
+		}
+		switch (c->modrm_mod) {
+		case 0:
+			if (c->modrm_rm == 5)
+				c->modrm_ea += insn_fetch(s32, 4, c->eip);
+			break;
+		case 1:
+			c->modrm_ea += insn_fetch(s8, 1, c->eip);
+			break;
+		case 2:
+			c->modrm_ea += insn_fetch(s32, 4, c->eip);
+			break;
+		}
+	}
+	if (rip_relative) {
+		c->modrm_ea += c->eip;
+		switch (c->d & SrcMask) {
+		case SrcImmByte:
+			c->modrm_ea += 1;
+			break;
+		case SrcImm:
+			if (c->d & ByteOp)
+				c->modrm_ea += 1;
+			else
+				if (c->op_bytes == 8)
+					c->modrm_ea += 4;
+				else
+					c->modrm_ea += c->op_bytes;
+		}
+	}
+done:
+	return rc;
+}
+
+static int decode_abs(struct x86_emulate_ctxt *ctxt,
+		      struct x86_emulate_ops *ops)
+{
+	struct decode_cache *c = &ctxt->decode;
+	int rc = 0;
+
+	switch (c->ad_bytes) {
+	case 2:
+		c->modrm_ea = insn_fetch(u16, 2, c->eip);
+		break;
+	case 4:
+		c->modrm_ea = insn_fetch(u32, 4, c->eip);
+		break;
+	case 8:
+		c->modrm_ea = insn_fetch(u64, 8, c->eip);
+		break;
+	}
+done:
+	return rc;
+}
+
+int
+x86_decode_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
+{
+	struct decode_cache *c = &ctxt->decode;
+	int rc = 0;
+	int mode = ctxt->mode;
+	int def_op_bytes, def_ad_bytes;
+
+	/* Shadow copy of register state. Committed on successful emulation. */
+
+	memset(c, 0, sizeof(struct decode_cache));
+	c->eip = ctxt->vcpu->arch.rip;
+	memcpy(c->regs, ctxt->vcpu->arch.regs, sizeof c->regs);
+
+	switch (mode) {
+	case X86EMUL_MODE_REAL:
+	case X86EMUL_MODE_PROT16:
+		def_op_bytes = def_ad_bytes = 2;
+		break;
+	case X86EMUL_MODE_PROT32:
+		def_op_bytes = def_ad_bytes = 4;
+		break;
+#ifdef CONFIG_X86_64
+	case X86EMUL_MODE_PROT64:
+		def_op_bytes = 4;
+		def_ad_bytes = 8;
+		break;
+#endif
+	default:
+		return -1;
+	}
+
+	c->op_bytes = def_op_bytes;
+	c->ad_bytes = def_ad_bytes;
+
+	/* Legacy prefixes. */
+	for (;;) {
+		switch (c->b = insn_fetch(u8, 1, c->eip)) {
+		case 0x66:	/* operand-size override */
+			/* switch between 2/4 bytes */
+			c->op_bytes = def_op_bytes ^ 6;
+			break;
+		case 0x67:	/* address-size override */
+			if (mode == X86EMUL_MODE_PROT64)
+				/* switch between 4/8 bytes */
+				c->ad_bytes = def_ad_bytes ^ 12;
+			else
+				/* switch between 2/4 bytes */
+				c->ad_bytes = def_ad_bytes ^ 6;
+			break;
+		case 0x2e:	/* CS override */
+			c->override_base = &ctxt->cs_base;
+			break;
+		case 0x3e:	/* DS override */
+			c->override_base = &ctxt->ds_base;
+			break;
+		case 0x26:	/* ES override */
+			c->override_base = &ctxt->es_base;
+			break;
+		case 0x64:	/* FS override */
+			c->override_base = &ctxt->fs_base;
+			break;
+		case 0x65:	/* GS override */
+			c->override_base = &ctxt->gs_base;
+			break;
+		case 0x36:	/* SS override */
+			c->override_base = &ctxt->ss_base;
+			break;
+		case 0x40 ... 0x4f: /* REX */
+			if (mode != X86EMUL_MODE_PROT64)
+				goto done_prefixes;
+			c->rex_prefix = c->b;
+			continue;
+		case 0xf0:	/* LOCK */
+			c->lock_prefix = 1;
+			break;
+		case 0xf2:	/* REPNE/REPNZ */
+			c->rep_prefix = REPNE_PREFIX;
+			break;
+		case 0xf3:	/* REP/REPE/REPZ */
+			c->rep_prefix = REPE_PREFIX;
+			break;
+		default:
+			goto done_prefixes;
+		}
+
+		/* Any legacy prefix after a REX prefix nullifies its effect. */
+
+		c->rex_prefix = 0;
+	}
+
+done_prefixes:
+
+	/* REX prefix. */
+	if (c->rex_prefix)
+		if (c->rex_prefix & 8)
+			c->op_bytes = 8;	/* REX.W */
+
+	/* Opcode byte(s). */
+	c->d = opcode_table[c->b];
+	if (c->d == 0) {
+		/* Two-byte opcode? */
+		if (c->b == 0x0f) {
+			c->twobyte = 1;
+			c->b = insn_fetch(u8, 1, c->eip);
+			c->d = twobyte_table[c->b];
+		}
+
+		/* Unrecognised? */
+		if (c->d == 0) {
+			DPRINTF("Cannot emulate %02x\n", c->b);
+			return -1;
+		}
+	}
+
+	if (mode == X86EMUL_MODE_PROT64 && (c->d & Stack))
+		c->op_bytes = 8;
+
+	/* ModRM and SIB bytes. */
+	if (c->d & ModRM)
+		rc = decode_modrm(ctxt, ops);
+	else if (c->d & MemAbs)
+		rc = decode_abs(ctxt, ops);
+	if (rc)
+		goto done;
+
+	if (!c->override_base)
+		c->override_base = &ctxt->ds_base;
+	if (mode == X86EMUL_MODE_PROT64 &&
+	    c->override_base != &ctxt->fs_base &&
+	    c->override_base != &ctxt->gs_base)
+		c->override_base = NULL;
+
+	if (c->override_base)
+		c->modrm_ea += *c->override_base;
+
+	if (c->ad_bytes != 8)
+		c->modrm_ea = (u32)c->modrm_ea;
+	/*
+	 * Decode and fetch the source operand: register, memory
+	 * or immediate.
+	 */
+	switch (c->d & SrcMask) {
+	case SrcNone:
+		break;
+	case SrcReg:
+		decode_register_operand(&c->src, c, 0);
+		break;
+	case SrcMem16:
+		c->src.bytes = 2;
+		goto srcmem_common;
+	case SrcMem32:
+		c->src.bytes = 4;
+		goto srcmem_common;
+	case SrcMem:
+		c->src.bytes = (c->d & ByteOp) ? 1 :
+							   c->op_bytes;
+		/* Don't fetch the address for invlpg: it could be unmapped. */
+		if (c->twobyte && c->b == 0x01 && c->modrm_reg == 7)
+			break;
+	srcmem_common:
+		/*
+		 * For instructions with a ModR/M byte, switch to register
+		 * access if Mod = 3.
+		 */
+		if ((c->d & ModRM) && c->modrm_mod == 3) {
+			c->src.type = OP_REG;
+			break;
+		}
+		c->src.type = OP_MEM;
+		break;
+	case SrcImm:
+		c->src.type = OP_IMM;
+		c->src.ptr = (unsigned long *)c->eip;
+		c->src.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
+		if (c->src.bytes == 8)
+			c->src.bytes = 4;
+		/* NB. Immediates are sign-extended as necessary. */
+		switch (c->src.bytes) {
+		case 1:
+			c->src.val = insn_fetch(s8, 1, c->eip);
+			break;
+		case 2:
+			c->src.val = insn_fetch(s16, 2, c->eip);
+			break;
+		case 4:
+			c->src.val = insn_fetch(s32, 4, c->eip);
+			break;
+		}
+		break;
+	case SrcImmByte:
+		c->src.type = OP_IMM;
+		c->src.ptr = (unsigned long *)c->eip;
+		c->src.bytes = 1;
+		c->src.val = insn_fetch(s8, 1, c->eip);
+		break;
+	}
+
+	/* Decode and fetch the destination operand: register or memory. */
+	switch (c->d & DstMask) {
+	case ImplicitOps:
+		/* Special instructions do their own operand decoding. */
+		return 0;
+	case DstReg:
+		decode_register_operand(&c->dst, c,
+			 c->twobyte && (c->b == 0xb6 || c->b == 0xb7));
+		break;
+	case DstMem:
+		if ((c->d & ModRM) && c->modrm_mod == 3) {
+			c->dst.type = OP_REG;
+			break;
+		}
+		c->dst.type = OP_MEM;
+		break;
+	}
+
+done:
+	return (rc == X86EMUL_UNHANDLEABLE) ? -1 : 0;
+}
+
+static inline void emulate_push(struct x86_emulate_ctxt *ctxt)
+{
+	struct decode_cache *c = &ctxt->decode;
+
+	c->dst.type  = OP_MEM;
+	c->dst.bytes = c->op_bytes;
+	c->dst.val = c->src.val;
+	register_address_increment(c->regs[VCPU_REGS_RSP], -c->op_bytes);
+	c->dst.ptr = (void *) register_address(ctxt->ss_base,
+					       c->regs[VCPU_REGS_RSP]);
+}
+
+static inline int emulate_grp1a(struct x86_emulate_ctxt *ctxt,
+				struct x86_emulate_ops *ops)
+{
+	struct decode_cache *c = &ctxt->decode;
+	int rc;
+
+	rc = ops->read_std(register_address(ctxt->ss_base,
+					    c->regs[VCPU_REGS_RSP]),
+			   &c->dst.val, c->dst.bytes, ctxt->vcpu);
+	if (rc != 0)
+		return rc;
+
+	register_address_increment(c->regs[VCPU_REGS_RSP], c->dst.bytes);
+
+	return 0;
+}
+
+static inline void emulate_grp2(struct x86_emulate_ctxt *ctxt)
+{
+	struct decode_cache *c = &ctxt->decode;
+	switch (c->modrm_reg) {
+	case 0:	/* rol */
+		emulate_2op_SrcB("rol", c->src, c->dst, ctxt->eflags);
+		break;
+	case 1:	/* ror */
+		emulate_2op_SrcB("ror", c->src, c->dst, ctxt->eflags);
+		break;
+	case 2:	/* rcl */
+		emulate_2op_SrcB("rcl", c->src, c->dst, ctxt->eflags);
+		break;
+	case 3:	/* rcr */
+		emulate_2op_SrcB("rcr", c->src, c->dst, ctxt->eflags);
+		break;
+	case 4:	/* sal/shl */
+	case 6:	/* sal/shl */
+		emulate_2op_SrcB("sal", c->src, c->dst, ctxt->eflags);
+		break;
+	case 5:	/* shr */
+		emulate_2op_SrcB("shr", c->src, c->dst, ctxt->eflags);
+		break;
+	case 7:	/* sar */
+		emulate_2op_SrcB("sar", c->src, c->dst, ctxt->eflags);
+		break;
+	}
+}
+
+static inline int emulate_grp3(struct x86_emulate_ctxt *ctxt,
+			       struct x86_emulate_ops *ops)
+{
+	struct decode_cache *c = &ctxt->decode;
+	int rc = 0;
+
+	switch (c->modrm_reg) {
+	case 0 ... 1:	/* test */
+		/*
+		 * Special case in Grp3: test has an immediate
+		 * source operand.
+		 */
+		c->src.type = OP_IMM;
+		c->src.ptr = (unsigned long *)c->eip;
+		c->src.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
+		if (c->src.bytes == 8)
+			c->src.bytes = 4;
+		switch (c->src.bytes) {
+		case 1:
+			c->src.val = insn_fetch(s8, 1, c->eip);
+			break;
+		case 2:
+			c->src.val = insn_fetch(s16, 2, c->eip);
+			break;
+		case 4:
+			c->src.val = insn_fetch(s32, 4, c->eip);
+			break;
+		}
+		emulate_2op_SrcV("test", c->src, c->dst, ctxt->eflags);
+		break;
+	case 2:	/* not */
+		c->dst.val = ~c->dst.val;
+		break;
+	case 3:	/* neg */
+		emulate_1op("neg", c->dst, ctxt->eflags);
+		break;
+	default:
+		DPRINTF("Cannot emulate %02x\n", c->b);
+		rc = X86EMUL_UNHANDLEABLE;
+		break;
+	}
+done:
+	return rc;
+}
+
+static inline int emulate_grp45(struct x86_emulate_ctxt *ctxt,
+			       struct x86_emulate_ops *ops)
+{
+	struct decode_cache *c = &ctxt->decode;
+	int rc;
+
+	switch (c->modrm_reg) {
+	case 0:	/* inc */
+		emulate_1op("inc", c->dst, ctxt->eflags);
+		break;
+	case 1:	/* dec */
+		emulate_1op("dec", c->dst, ctxt->eflags);
+		break;
+	case 4: /* jmp abs */
+		if (c->b == 0xff)
+			c->eip = c->dst.val;
+		else {
+			DPRINTF("Cannot emulate %02x\n", c->b);
+			return X86EMUL_UNHANDLEABLE;
+		}
+		break;
+	case 6:	/* push */
+
+		/* 64-bit mode: PUSH always pushes a 64-bit operand. */
+
+		if (ctxt->mode == X86EMUL_MODE_PROT64) {
+			c->dst.bytes = 8;
+			rc = ops->read_std((unsigned long)c->dst.ptr,
+					   &c->dst.val, 8, ctxt->vcpu);
+			if (rc != 0)
+				return rc;
+		}
+		register_address_increment(c->regs[VCPU_REGS_RSP],
+					   -c->dst.bytes);
+		rc = ops->write_emulated(register_address(ctxt->ss_base,
+				    c->regs[VCPU_REGS_RSP]), &c->dst.val,
+				    c->dst.bytes, ctxt->vcpu);
+		if (rc != 0)
+			return rc;
+		c->dst.type = OP_NONE;
+		break;
+	default:
+		DPRINTF("Cannot emulate %02x\n", c->b);
+		return X86EMUL_UNHANDLEABLE;
+	}
+	return 0;
+}
+
+static inline int emulate_grp9(struct x86_emulate_ctxt *ctxt,
+			       struct x86_emulate_ops *ops,
+			       unsigned long memop)
+{
+	struct decode_cache *c = &ctxt->decode;
+	u64 old, new;
+	int rc;
+
+	rc = ops->read_emulated(memop, &old, 8, ctxt->vcpu);
+	if (rc != 0)
+		return rc;
+
+	if (((u32) (old >> 0) != (u32) c->regs[VCPU_REGS_RAX]) ||
+	    ((u32) (old >> 32) != (u32) c->regs[VCPU_REGS_RDX])) {
+
+		c->regs[VCPU_REGS_RAX] = (u32) (old >> 0);
+		c->regs[VCPU_REGS_RDX] = (u32) (old >> 32);
+		ctxt->eflags &= ~EFLG_ZF;
+
+	} else {
+		new = ((u64)c->regs[VCPU_REGS_RCX] << 32) |
+		       (u32) c->regs[VCPU_REGS_RBX];
+
+		rc = ops->cmpxchg_emulated(memop, &old, &new, 8, ctxt->vcpu);
+		if (rc != 0)
+			return rc;
+		ctxt->eflags |= EFLG_ZF;
+	}
+	return 0;
+}
+
+static inline int writeback(struct x86_emulate_ctxt *ctxt,
+			    struct x86_emulate_ops *ops)
+{
+	int rc;
+	struct decode_cache *c = &ctxt->decode;
+
+	switch (c->dst.type) {
+	case OP_REG:
+		/* The 4-byte case *is* correct:
+		 * in 64-bit mode we zero-extend.
+		 */
+		switch (c->dst.bytes) {
+		case 1:
+			*(u8 *)c->dst.ptr = (u8)c->dst.val;
+			break;
+		case 2:
+			*(u16 *)c->dst.ptr = (u16)c->dst.val;
+			break;
+		case 4:
+			*c->dst.ptr = (u32)c->dst.val;
+			break;	/* 64b: zero-ext */
+		case 8:
+			*c->dst.ptr = c->dst.val;
+			break;
+		}
+		break;
+	case OP_MEM:
+		if (c->lock_prefix)
+			rc = ops->cmpxchg_emulated(
+					(unsigned long)c->dst.ptr,
+					&c->dst.orig_val,
+					&c->dst.val,
+					c->dst.bytes,
+					ctxt->vcpu);
+		else
+			rc = ops->write_emulated(
+					(unsigned long)c->dst.ptr,
+					&c->dst.val,
+					c->dst.bytes,
+					ctxt->vcpu);
+		if (rc != 0)
+			return rc;
+		break;
+	case OP_NONE:
+		/* no writeback */
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+int
+x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
+{
+	unsigned long memop = 0;
+	u64 msr_data;
+	unsigned long saved_eip = 0;
+	struct decode_cache *c = &ctxt->decode;
+	int rc = 0;
+
+	/* Shadow copy of register state. Committed on successful emulation.
+	 * NOTE: we can copy them from vcpu as x86_decode_insn() doesn't
+	 * modify them.
+	 */
+
+	memcpy(c->regs, ctxt->vcpu->arch.regs, sizeof c->regs);
+	saved_eip = c->eip;
+
+	if (((c->d & ModRM) && (c->modrm_mod != 3)) || (c->d & MemAbs))
+		memop = c->modrm_ea;
+
+	if (c->rep_prefix && (c->d & String)) {
+		/* All REP prefixes have the same first termination condition */
+		if (c->regs[VCPU_REGS_RCX] == 0) {
+			ctxt->vcpu->arch.rip = c->eip;
+			goto done;
+		}
+		/* The second termination condition only applies for REPE
+		 * and REPNE. Test if the repeat string operation prefix is
+		 * REPE/REPZ or REPNE/REPNZ and if it's the case it tests the
+		 * corresponding termination condition according to:
+		 * 	- if REPE/REPZ and ZF = 0 then done
+		 * 	- if REPNE/REPNZ and ZF = 1 then done
+		 */
+		if ((c->b == 0xa6) || (c->b == 0xa7) ||
+				(c->b == 0xae) || (c->b == 0xaf)) {
+			if ((c->rep_prefix == REPE_PREFIX) &&
+				((ctxt->eflags & EFLG_ZF) == 0)) {
+					ctxt->vcpu->arch.rip = c->eip;
+					goto done;
+			}
+			if ((c->rep_prefix == REPNE_PREFIX) &&
+				((ctxt->eflags & EFLG_ZF) == EFLG_ZF)) {
+				ctxt->vcpu->arch.rip = c->eip;
+				goto done;
+			}
+		}
+		c->regs[VCPU_REGS_RCX]--;
+		c->eip = ctxt->vcpu->arch.rip;
+	}
+
+	if (c->src.type == OP_MEM) {
+		c->src.ptr = (unsigned long *)memop;
+		c->src.val = 0;
+		rc = ops->read_emulated((unsigned long)c->src.ptr,
+					&c->src.val,
+					c->src.bytes,
+					ctxt->vcpu);
+		if (rc != 0)
+			goto done;
+		c->src.orig_val = c->src.val;
+	}
+
+	if ((c->d & DstMask) == ImplicitOps)
+		goto special_insn;
+
+
+	if (c->dst.type == OP_MEM) {
+		c->dst.ptr = (unsigned long *)memop;
+		c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
+		c->dst.val = 0;
+		if (c->d & BitOp) {
+			unsigned long mask = ~(c->dst.bytes * 8 - 1);
+
+			c->dst.ptr = (void *)c->dst.ptr +
+						   (c->src.val & mask) / 8;
+		}
+		if (!(c->d & Mov) &&
+				   /* optimisation - avoid slow emulated read */
+		    ((rc = ops->read_emulated((unsigned long)c->dst.ptr,
+					   &c->dst.val,
+					  c->dst.bytes, ctxt->vcpu)) != 0))
+			goto done;
+	}
+	c->dst.orig_val = c->dst.val;
+
+special_insn:
+
+	if (c->twobyte)
+		goto twobyte_insn;
+
+	switch (c->b) {
+	case 0x00 ... 0x05:
+	      add:		/* add */
+		emulate_2op_SrcV("add", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0x08 ... 0x0d:
+	      or:		/* or */
+		emulate_2op_SrcV("or", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0x10 ... 0x15:
+	      adc:		/* adc */
+		emulate_2op_SrcV("adc", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0x18 ... 0x1d:
+	      sbb:		/* sbb */
+		emulate_2op_SrcV("sbb", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0x20 ... 0x23:
+	      and:		/* and */
+		emulate_2op_SrcV("and", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0x24:              /* and al imm8 */
+		c->dst.type = OP_REG;
+		c->dst.ptr = &c->regs[VCPU_REGS_RAX];
+		c->dst.val = *(u8 *)c->dst.ptr;
+		c->dst.bytes = 1;
+		c->dst.orig_val = c->dst.val;
+		goto and;
+	case 0x25:              /* and ax imm16, or eax imm32 */
+		c->dst.type = OP_REG;
+		c->dst.bytes = c->op_bytes;
+		c->dst.ptr = &c->regs[VCPU_REGS_RAX];
+		if (c->op_bytes == 2)
+			c->dst.val = *(u16 *)c->dst.ptr;
+		else
+			c->dst.val = *(u32 *)c->dst.ptr;
+		c->dst.orig_val = c->dst.val;
+		goto and;
+	case 0x28 ... 0x2d:
+	      sub:		/* sub */
+		emulate_2op_SrcV("sub", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0x30 ... 0x35:
+	      xor:		/* xor */
+		emulate_2op_SrcV("xor", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0x38 ... 0x3d:
+	      cmp:		/* cmp */
+		emulate_2op_SrcV("cmp", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0x40 ... 0x47: /* inc r16/r32 */
+		emulate_1op("inc", c->dst, ctxt->eflags);
+		break;
+	case 0x48 ... 0x4f: /* dec r16/r32 */
+		emulate_1op("dec", c->dst, ctxt->eflags);
+		break;
+	case 0x50 ... 0x57:  /* push reg */
+		c->dst.type  = OP_MEM;
+		c->dst.bytes = c->op_bytes;
+		c->dst.val = c->src.val;
+		register_address_increment(c->regs[VCPU_REGS_RSP],
+					   -c->op_bytes);
+		c->dst.ptr = (void *) register_address(
+			ctxt->ss_base, c->regs[VCPU_REGS_RSP]);
+		break;
+	case 0x58 ... 0x5f: /* pop reg */
+	pop_instruction:
+		if ((rc = ops->read_std(register_address(ctxt->ss_base,
+			c->regs[VCPU_REGS_RSP]), c->dst.ptr,
+			c->op_bytes, ctxt->vcpu)) != 0)
+			goto done;
+
+		register_address_increment(c->regs[VCPU_REGS_RSP],
+					   c->op_bytes);
+		c->dst.type = OP_NONE;	/* Disable writeback. */
+		break;
+	case 0x63:		/* movsxd */
+		if (ctxt->mode != X86EMUL_MODE_PROT64)
+			goto cannot_emulate;
+		c->dst.val = (s32) c->src.val;
+		break;
+	case 0x6a: /* push imm8 */
+		c->src.val = 0L;
+		c->src.val = insn_fetch(s8, 1, c->eip);
+		emulate_push(ctxt);
+		break;
+	case 0x6c:		/* insb */
+	case 0x6d:		/* insw/insd */
+		 if (kvm_emulate_pio_string(ctxt->vcpu, NULL,
+				1,
+				(c->d & ByteOp) ? 1 : c->op_bytes,
+				c->rep_prefix ?
+				address_mask(c->regs[VCPU_REGS_RCX]) : 1,
+				(ctxt->eflags & EFLG_DF),
+				register_address(ctxt->es_base,
+						 c->regs[VCPU_REGS_RDI]),
+				c->rep_prefix,
+				c->regs[VCPU_REGS_RDX]) == 0) {
+			c->eip = saved_eip;
+			return -1;
+		}
+		return 0;
+	case 0x6e:		/* outsb */
+	case 0x6f:		/* outsw/outsd */
+		if (kvm_emulate_pio_string(ctxt->vcpu, NULL,
+				0,
+				(c->d & ByteOp) ? 1 : c->op_bytes,
+				c->rep_prefix ?
+				address_mask(c->regs[VCPU_REGS_RCX]) : 1,
+				(ctxt->eflags & EFLG_DF),
+				register_address(c->override_base ?
+							*c->override_base :
+							ctxt->ds_base,
+						 c->regs[VCPU_REGS_RSI]),
+				c->rep_prefix,
+				c->regs[VCPU_REGS_RDX]) == 0) {
+			c->eip = saved_eip;
+			return -1;
+		}
+		return 0;
+	case 0x70 ... 0x7f: /* jcc (short) */ {
+		int rel = insn_fetch(s8, 1, c->eip);
+
+		if (test_cc(c->b, ctxt->eflags))
+			JMP_REL(rel);
+		break;
+	}
+	case 0x80 ... 0x83:	/* Grp1 */
+		switch (c->modrm_reg) {
+		case 0:
+			goto add;
+		case 1:
+			goto or;
+		case 2:
+			goto adc;
+		case 3:
+			goto sbb;
+		case 4:
+			goto and;
+		case 5:
+			goto sub;
+		case 6:
+			goto xor;
+		case 7:
+			goto cmp;
+		}
+		break;
+	case 0x84 ... 0x85:
+		emulate_2op_SrcV("test", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0x86 ... 0x87:	/* xchg */
+		/* Write back the register source. */
+		switch (c->dst.bytes) {
+		case 1:
+			*(u8 *) c->src.ptr = (u8) c->dst.val;
+			break;
+		case 2:
+			*(u16 *) c->src.ptr = (u16) c->dst.val;
+			break;
+		case 4:
+			*c->src.ptr = (u32) c->dst.val;
+			break;	/* 64b reg: zero-extend */
+		case 8:
+			*c->src.ptr = c->dst.val;
+			break;
+		}
+		/*
+		 * Write back the memory destination with implicit LOCK
+		 * prefix.
+		 */
+		c->dst.val = c->src.val;
+		c->lock_prefix = 1;
+		break;
+	case 0x88 ... 0x8b:	/* mov */
+		goto mov;
+	case 0x8d: /* lea r16/r32, m */
+		c->dst.val = c->modrm_val;
+		break;
+	case 0x8f:		/* pop (sole member of Grp1a) */
+		rc = emulate_grp1a(ctxt, ops);
+		if (rc != 0)
+			goto done;
+		break;
+	case 0x9c: /* pushf */
+		c->src.val =  (unsigned long) ctxt->eflags;
+		emulate_push(ctxt);
+		break;
+	case 0x9d: /* popf */
+		c->dst.ptr = (unsigned long *) &ctxt->eflags;
+		goto pop_instruction;
+	case 0xa0 ... 0xa1:	/* mov */
+		c->dst.ptr = (unsigned long *)&c->regs[VCPU_REGS_RAX];
+		c->dst.val = c->src.val;
+		break;
+	case 0xa2 ... 0xa3:	/* mov */
+		c->dst.val = (unsigned long)c->regs[VCPU_REGS_RAX];
+		break;
+	case 0xa4 ... 0xa5:	/* movs */
+		c->dst.type = OP_MEM;
+		c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
+		c->dst.ptr = (unsigned long *)register_address(
+						   ctxt->es_base,
+						   c->regs[VCPU_REGS_RDI]);
+		if ((rc = ops->read_emulated(register_address(
+		      c->override_base ? *c->override_base :
+					ctxt->ds_base,
+					c->regs[VCPU_REGS_RSI]),
+					&c->dst.val,
+					c->dst.bytes, ctxt->vcpu)) != 0)
+			goto done;
+		register_address_increment(c->regs[VCPU_REGS_RSI],
+				       (ctxt->eflags & EFLG_DF) ? -c->dst.bytes
+							   : c->dst.bytes);
+		register_address_increment(c->regs[VCPU_REGS_RDI],
+				       (ctxt->eflags & EFLG_DF) ? -c->dst.bytes
+							   : c->dst.bytes);
+		break;
+	case 0xa6 ... 0xa7:	/* cmps */
+		c->src.type = OP_NONE; /* Disable writeback. */
+		c->src.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
+		c->src.ptr = (unsigned long *)register_address(
+				c->override_base ? *c->override_base :
+						   ctxt->ds_base,
+						   c->regs[VCPU_REGS_RSI]);
+		if ((rc = ops->read_emulated((unsigned long)c->src.ptr,
+						&c->src.val,
+						c->src.bytes,
+						ctxt->vcpu)) != 0)
+			goto done;
+
+		c->dst.type = OP_NONE; /* Disable writeback. */
+		c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
+		c->dst.ptr = (unsigned long *)register_address(
+						   ctxt->es_base,
+						   c->regs[VCPU_REGS_RDI]);
+		if ((rc = ops->read_emulated((unsigned long)c->dst.ptr,
+						&c->dst.val,
+						c->dst.bytes,
+						ctxt->vcpu)) != 0)
+			goto done;
+
+		DPRINTF("cmps: mem1=0x%p mem2=0x%p\n", c->src.ptr, c->dst.ptr);
+
+		emulate_2op_SrcV("cmp", c->src, c->dst, ctxt->eflags);
+
+		register_address_increment(c->regs[VCPU_REGS_RSI],
+				       (ctxt->eflags & EFLG_DF) ? -c->src.bytes
+								  : c->src.bytes);
+		register_address_increment(c->regs[VCPU_REGS_RDI],
+				       (ctxt->eflags & EFLG_DF) ? -c->dst.bytes
+								  : c->dst.bytes);
+
+		break;
+	case 0xaa ... 0xab:	/* stos */
+		c->dst.type = OP_MEM;
+		c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
+		c->dst.ptr = (unsigned long *)register_address(
+						   ctxt->es_base,
+						   c->regs[VCPU_REGS_RDI]);
+		c->dst.val = c->regs[VCPU_REGS_RAX];
+		register_address_increment(c->regs[VCPU_REGS_RDI],
+				       (ctxt->eflags & EFLG_DF) ? -c->dst.bytes
+							   : c->dst.bytes);
+		break;
+	case 0xac ... 0xad:	/* lods */
+		c->dst.type = OP_REG;
+		c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
+		c->dst.ptr = (unsigned long *)&c->regs[VCPU_REGS_RAX];
+		if ((rc = ops->read_emulated(register_address(
+				c->override_base ? *c->override_base :
+						   ctxt->ds_base,
+						 c->regs[VCPU_REGS_RSI]),
+						 &c->dst.val,
+						 c->dst.bytes,
+						 ctxt->vcpu)) != 0)
+			goto done;
+		register_address_increment(c->regs[VCPU_REGS_RSI],
+				       (ctxt->eflags & EFLG_DF) ? -c->dst.bytes
+							   : c->dst.bytes);
+		break;
+	case 0xae ... 0xaf:	/* scas */
+		DPRINTF("Urk! I don't handle SCAS.\n");
+		goto cannot_emulate;
+	case 0xc0 ... 0xc1:
+		emulate_grp2(ctxt);
+		break;
+	case 0xc3: /* ret */
+		c->dst.ptr = &c->eip;
+		goto pop_instruction;
+	case 0xc6 ... 0xc7:	/* mov (sole member of Grp11) */
+	mov:
+		c->dst.val = c->src.val;
+		break;
+	case 0xd0 ... 0xd1:	/* Grp2 */
+		c->src.val = 1;
+		emulate_grp2(ctxt);
+		break;
+	case 0xd2 ... 0xd3:	/* Grp2 */
+		c->src.val = c->regs[VCPU_REGS_RCX];
+		emulate_grp2(ctxt);
+		break;
+	case 0xe8: /* call (near) */ {
+		long int rel;
+		switch (c->op_bytes) {
+		case 2:
+			rel = insn_fetch(s16, 2, c->eip);
+			break;
+		case 4:
+			rel = insn_fetch(s32, 4, c->eip);
+			break;
+		default:
+			DPRINTF("Call: Invalid op_bytes\n");
+			goto cannot_emulate;
+		}
+		c->src.val = (unsigned long) c->eip;
+		JMP_REL(rel);
+		c->op_bytes = c->ad_bytes;
+		emulate_push(ctxt);
+		break;
+	}
+	case 0xe9: /* jmp rel */
+	case 0xeb: /* jmp rel short */
+		JMP_REL(c->src.val);
+		c->dst.type = OP_NONE; /* Disable writeback. */
+		break;
+	case 0xf4:              /* hlt */
+		ctxt->vcpu->arch.halt_request = 1;
+		goto done;
+	case 0xf5:	/* cmc */
+		/* complement carry flag from eflags reg */
+		ctxt->eflags ^= EFLG_CF;
+		c->dst.type = OP_NONE;	/* Disable writeback. */
+		break;
+	case 0xf6 ... 0xf7:	/* Grp3 */
+		rc = emulate_grp3(ctxt, ops);
+		if (rc != 0)
+			goto done;
+		break;
+	case 0xf8: /* clc */
+		ctxt->eflags &= ~EFLG_CF;
+		c->dst.type = OP_NONE;	/* Disable writeback. */
+		break;
+	case 0xfa: /* cli */
+		ctxt->eflags &= ~X86_EFLAGS_IF;
+		c->dst.type = OP_NONE;	/* Disable writeback. */
+		break;
+	case 0xfb: /* sti */
+		ctxt->eflags |= X86_EFLAGS_IF;
+		c->dst.type = OP_NONE;	/* Disable writeback. */
+		break;
+	case 0xfe ... 0xff:	/* Grp4/Grp5 */
+		rc = emulate_grp45(ctxt, ops);
+		if (rc != 0)
+			goto done;
+		break;
+	}
+
+writeback:
+	rc = writeback(ctxt, ops);
+	if (rc != 0)
+		goto done;
+
+	/* Commit shadow register state. */
+	memcpy(ctxt->vcpu->arch.regs, c->regs, sizeof c->regs);
+	ctxt->vcpu->arch.rip = c->eip;
+
+done:
+	if (rc == X86EMUL_UNHANDLEABLE) {
+		c->eip = saved_eip;
+		return -1;
+	}
+	return 0;
+
+twobyte_insn:
+	switch (c->b) {
+	case 0x01: /* lgdt, lidt, lmsw */
+		switch (c->modrm_reg) {
+			u16 size;
+			unsigned long address;
+
+		case 0: /* vmcall */
+			if (c->modrm_mod != 3 || c->modrm_rm != 1)
+				goto cannot_emulate;
+
+			rc = kvm_fix_hypercall(ctxt->vcpu);
+			if (rc)
+				goto done;
+
+			kvm_emulate_hypercall(ctxt->vcpu);
+			break;
+		case 2: /* lgdt */
+			rc = read_descriptor(ctxt, ops, c->src.ptr,
+					     &size, &address, c->op_bytes);
+			if (rc)
+				goto done;
+			realmode_lgdt(ctxt->vcpu, size, address);
+			break;
+		case 3: /* lidt/vmmcall */
+			if (c->modrm_mod == 3 && c->modrm_rm == 1) {
+				rc = kvm_fix_hypercall(ctxt->vcpu);
+				if (rc)
+					goto done;
+				kvm_emulate_hypercall(ctxt->vcpu);
+			} else {
+				rc = read_descriptor(ctxt, ops, c->src.ptr,
+						     &size, &address,
+						     c->op_bytes);
+				if (rc)
+					goto done;
+				realmode_lidt(ctxt->vcpu, size, address);
+			}
+			break;
+		case 4: /* smsw */
+			if (c->modrm_mod != 3)
+				goto cannot_emulate;
+			*(u16 *)&c->regs[c->modrm_rm]
+				= realmode_get_cr(ctxt->vcpu, 0);
+			break;
+		case 6: /* lmsw */
+			if (c->modrm_mod != 3)
+				goto cannot_emulate;
+			realmode_lmsw(ctxt->vcpu, (u16)c->modrm_val,
+						  &ctxt->eflags);
+			break;
+		case 7: /* invlpg*/
+			emulate_invlpg(ctxt->vcpu, memop);
+			break;
+		default:
+			goto cannot_emulate;
+		}
+		/* Disable writeback. */
+		c->dst.type = OP_NONE;
+		break;
+	case 0x06:
+		emulate_clts(ctxt->vcpu);
+		c->dst.type = OP_NONE;
+		break;
+	case 0x08:		/* invd */
+	case 0x09:		/* wbinvd */
+	case 0x0d:		/* GrpP (prefetch) */
+	case 0x18:		/* Grp16 (prefetch/nop) */
+		c->dst.type = OP_NONE;
+		break;
+	case 0x20: /* mov cr, reg */
+		if (c->modrm_mod != 3)
+			goto cannot_emulate;
+		c->regs[c->modrm_rm] =
+				realmode_get_cr(ctxt->vcpu, c->modrm_reg);
+		c->dst.type = OP_NONE;	/* no writeback */
+		break;
+	case 0x21: /* mov from dr to reg */
+		if (c->modrm_mod != 3)
+			goto cannot_emulate;
+		rc = emulator_get_dr(ctxt, c->modrm_reg, &c->regs[c->modrm_rm]);
+		if (rc)
+			goto cannot_emulate;
+		c->dst.type = OP_NONE;	/* no writeback */
+		break;
+	case 0x22: /* mov reg, cr */
+		if (c->modrm_mod != 3)
+			goto cannot_emulate;
+		realmode_set_cr(ctxt->vcpu,
+				c->modrm_reg, c->modrm_val, &ctxt->eflags);
+		c->dst.type = OP_NONE;
+		break;
+	case 0x23: /* mov from reg to dr */
+		if (c->modrm_mod != 3)
+			goto cannot_emulate;
+		rc = emulator_set_dr(ctxt, c->modrm_reg,
+				     c->regs[c->modrm_rm]);
+		if (rc)
+			goto cannot_emulate;
+		c->dst.type = OP_NONE;	/* no writeback */
+		break;
+	case 0x30:
+		/* wrmsr */
+		msr_data = (u32)c->regs[VCPU_REGS_RAX]
+			| ((u64)c->regs[VCPU_REGS_RDX] << 32);
+		rc = kvm_set_msr(ctxt->vcpu, c->regs[VCPU_REGS_RCX], msr_data);
+		if (rc) {
+			kvm_inject_gp(ctxt->vcpu, 0);
+			c->eip = ctxt->vcpu->arch.rip;
+		}
+		rc = X86EMUL_CONTINUE;
+		c->dst.type = OP_NONE;
+		break;
+	case 0x32:
+		/* rdmsr */
+		rc = kvm_get_msr(ctxt->vcpu, c->regs[VCPU_REGS_RCX], &msr_data);
+		if (rc) {
+			kvm_inject_gp(ctxt->vcpu, 0);
+			c->eip = ctxt->vcpu->arch.rip;
+		} else {
+			c->regs[VCPU_REGS_RAX] = (u32)msr_data;
+			c->regs[VCPU_REGS_RDX] = msr_data >> 32;
+		}
+		rc = X86EMUL_CONTINUE;
+		c->dst.type = OP_NONE;
+		break;
+	case 0x40 ... 0x4f:	/* cmov */
+		c->dst.val = c->dst.orig_val = c->src.val;
+		if (!test_cc(c->b, ctxt->eflags))
+			c->dst.type = OP_NONE; /* no writeback */
+		break;
+	case 0x80 ... 0x8f: /* jnz rel, etc*/ {
+		long int rel;
+
+		switch (c->op_bytes) {
+		case 2:
+			rel = insn_fetch(s16, 2, c->eip);
+			break;
+		case 4:
+			rel = insn_fetch(s32, 4, c->eip);
+			break;
+		case 8:
+			rel = insn_fetch(s64, 8, c->eip);
+			break;
+		default:
+			DPRINTF("jnz: Invalid op_bytes\n");
+			goto cannot_emulate;
+		}
+		if (test_cc(c->b, ctxt->eflags))
+			JMP_REL(rel);
+		c->dst.type = OP_NONE;
+		break;
+	}
+	case 0xa3:
+	      bt:		/* bt */
+		c->dst.type = OP_NONE;
+		/* only subword offset */
+		c->src.val &= (c->dst.bytes << 3) - 1;
+		emulate_2op_SrcV_nobyte("bt", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0xab:
+	      bts:		/* bts */
+		/* only subword offset */
+		c->src.val &= (c->dst.bytes << 3) - 1;
+		emulate_2op_SrcV_nobyte("bts", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0xb0 ... 0xb1:	/* cmpxchg */
+		/*
+		 * Save real source value, then compare EAX against
+		 * destination.
+		 */
+		c->src.orig_val = c->src.val;
+		c->src.val = c->regs[VCPU_REGS_RAX];
+		emulate_2op_SrcV("cmp", c->src, c->dst, ctxt->eflags);
+		if (ctxt->eflags & EFLG_ZF) {
+			/* Success: write back to memory. */
+			c->dst.val = c->src.orig_val;
+		} else {
+			/* Failure: write the value we saw to EAX. */
+			c->dst.type = OP_REG;
+			c->dst.ptr = (unsigned long *)&c->regs[VCPU_REGS_RAX];
+		}
+		break;
+	case 0xb3:
+	      btr:		/* btr */
+		/* only subword offset */
+		c->src.val &= (c->dst.bytes << 3) - 1;
+		emulate_2op_SrcV_nobyte("btr", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0xb6 ... 0xb7:	/* movzx */
+		c->dst.bytes = c->op_bytes;
+		c->dst.val = (c->d & ByteOp) ? (u8) c->src.val
+						       : (u16) c->src.val;
+		break;
+	case 0xba:		/* Grp8 */
+		switch (c->modrm_reg & 3) {
+		case 0:
+			goto bt;
+		case 1:
+			goto bts;
+		case 2:
+			goto btr;
+		case 3:
+			goto btc;
+		}
+		break;
+	case 0xbb:
+	      btc:		/* btc */
+		/* only subword offset */
+		c->src.val &= (c->dst.bytes << 3) - 1;
+		emulate_2op_SrcV_nobyte("btc", c->src, c->dst, ctxt->eflags);
+		break;
+	case 0xbe ... 0xbf:	/* movsx */
+		c->dst.bytes = c->op_bytes;
+		c->dst.val = (c->d & ByteOp) ? (s8) c->src.val :
+							(s16) c->src.val;
+		break;
+	case 0xc3:		/* movnti */
+		c->dst.bytes = c->op_bytes;
+		c->dst.val = (c->op_bytes == 4) ? (u32) c->src.val :
+							(u64) c->src.val;
+		break;
+	case 0xc7:		/* Grp9 (cmpxchg8b) */
+		rc = emulate_grp9(ctxt, ops, memop);
+		if (rc != 0)
+			goto done;
+		c->dst.type = OP_NONE;
+		break;
+	}
+	goto writeback;
+
+cannot_emulate:
+	DPRINTF("Cannot emulate %02x\n", c->b);
+	c->eip = saved_eip;
+	return -1;
+}
diff --git a/drivers/Kconfig b/drivers/Kconfig
index f4076d9e9902..08d4ae201597 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -90,8 +90,6 @@ source "drivers/dca/Kconfig"
 
 source "drivers/auxdisplay/Kconfig"
 
-source "drivers/kvm/Kconfig"
-
 source "drivers/uio/Kconfig"
 
 source "drivers/virtio/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index d92d4d82d001..9e1f808e43cf 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -47,7 +47,6 @@ obj-$(CONFIG_SPI)		+= spi/
 obj-$(CONFIG_PCCARD)		+= pcmcia/
 obj-$(CONFIG_DIO)		+= dio/
 obj-$(CONFIG_SBUS)		+= sbus/
-obj-$(CONFIG_KVM)		+= kvm/
 obj-$(CONFIG_ZORRO)		+= zorro/
 obj-$(CONFIG_MAC)		+= macintosh/
 obj-$(CONFIG_ATA_OVER_ETH)	+= block/aoe/
diff --git a/drivers/kvm/Kconfig b/drivers/kvm/Kconfig
deleted file mode 100644
index c83e1c9b5129..000000000000
--- a/drivers/kvm/Kconfig
+++ /dev/null
@@ -1,57 +0,0 @@
-#
-# KVM configuration
-#
-config HAVE_KVM
-       bool
-
-menuconfig VIRTUALIZATION
-	bool "Virtualization"
-	depends on HAVE_KVM || X86
-	default y
-	---help---
-	  Say Y here to get to see options for using your Linux host to run other
-	  operating systems inside virtual machines (guests).
-	  This option alone does not add any kernel code.
-
-	  If you say N, all options in this submenu will be skipped and disabled.
-
-if VIRTUALIZATION
-
-config KVM
-	tristate "Kernel-based Virtual Machine (KVM) support"
-	depends on HAVE_KVM && EXPERIMENTAL
-	select PREEMPT_NOTIFIERS
-	select ANON_INODES
-	---help---
-	  Support hosting fully virtualized guest machines using hardware
-	  virtualization extensions.  You will need a fairly recent
-	  processor equipped with virtualization extensions. You will also
-	  need to select one or more of the processor modules below.
-
-	  This module provides access to the hardware capabilities through
-	  a character device node named /dev/kvm.
-
-	  To compile this as a module, choose M here: the module
-	  will be called kvm.
-
-	  If unsure, say N.
-
-config KVM_INTEL
-	tristate "KVM for Intel processors support"
-	depends on KVM
-	---help---
-	  Provides support for KVM on Intel processors equipped with the VT
-	  extensions.
-
-config KVM_AMD
-	tristate "KVM for AMD processors support"
-	depends on KVM
-	---help---
-	  Provides support for KVM on AMD processors equipped with the AMD-V
-	  (SVM) extensions.
-
-# OK, it's a little counter-intuitive to do this, but it puts it neatly under
-# the virtualization menu.
-source drivers/lguest/Kconfig
-
-endif # VIRTUALIZATION
diff --git a/drivers/kvm/Makefile b/drivers/kvm/Makefile
deleted file mode 100644
index cf18ad46e987..000000000000
--- a/drivers/kvm/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-#
-# Makefile for Kernel-based Virtual Machine module
-#
-
-kvm-objs := kvm_main.o x86.o mmu.o x86_emulate.o i8259.o irq.o lapic.o ioapic.o
-obj-$(CONFIG_KVM) += kvm.o
-kvm-intel-objs = vmx.o
-obj-$(CONFIG_KVM_INTEL) += kvm-intel.o
-kvm-amd-objs = svm.o
-obj-$(CONFIG_KVM_AMD) += kvm-amd.o
diff --git a/drivers/kvm/i8259.c b/drivers/kvm/i8259.c
deleted file mode 100644
index b3cad632f3d5..000000000000
--- a/drivers/kvm/i8259.c
+++ /dev/null
@@ -1,449 +0,0 @@
-/*
- * 8259 interrupt controller emulation
- *
- * Copyright (c) 2003-2004 Fabrice Bellard
- * Copyright (c) 2007 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- * Authors:
- *   Yaozu (Eddie) Dong <Eddie.dong@intel.com>
- *   Port from Qemu.
- */
-#include <linux/mm.h>
-#include "irq.h"
-#include "kvm.h"
-
-/*
- * set irq level. If an edge is detected, then the IRR is set to 1
- */
-static inline void pic_set_irq1(struct kvm_kpic_state *s, int irq, int level)
-{
-	int mask;
-	mask = 1 << irq;
-	if (s->elcr & mask)	/* level triggered */
-		if (level) {
-			s->irr |= mask;
-			s->last_irr |= mask;
-		} else {
-			s->irr &= ~mask;
-			s->last_irr &= ~mask;
-		}
-	else	/* edge triggered */
-		if (level) {
-			if ((s->last_irr & mask) == 0)
-				s->irr |= mask;
-			s->last_irr |= mask;
-		} else
-			s->last_irr &= ~mask;
-}
-
-/*
- * return the highest priority found in mask (highest = smallest
- * number). Return 8 if no irq
- */
-static inline int get_priority(struct kvm_kpic_state *s, int mask)
-{
-	int priority;
-	if (mask == 0)
-		return 8;
-	priority = 0;
-	while ((mask & (1 << ((priority + s->priority_add) & 7))) == 0)
-		priority++;
-	return priority;
-}
-
-/*
- * return the pic wanted interrupt. return -1 if none
- */
-static int pic_get_irq(struct kvm_kpic_state *s)
-{
-	int mask, cur_priority, priority;
-
-	mask = s->irr & ~s->imr;
-	priority = get_priority(s, mask);
-	if (priority == 8)
-		return -1;
-	/*
-	 * compute current priority. If special fully nested mode on the
-	 * master, the IRQ coming from the slave is not taken into account
-	 * for the priority computation.
-	 */
-	mask = s->isr;
-	if (s->special_fully_nested_mode && s == &s->pics_state->pics[0])
-		mask &= ~(1 << 2);
-	cur_priority = get_priority(s, mask);
-	if (priority < cur_priority)
-		/*
-		 * higher priority found: an irq should be generated
-		 */
-		return (priority + s->priority_add) & 7;
-	else
-		return -1;
-}
-
-/*
- * raise irq to CPU if necessary. must be called every time the active
- * irq may change
- */
-static void pic_update_irq(struct kvm_pic *s)
-{
-	int irq2, irq;
-
-	irq2 = pic_get_irq(&s->pics[1]);
-	if (irq2 >= 0) {
-		/*
-		 * if irq request by slave pic, signal master PIC
-		 */
-		pic_set_irq1(&s->pics[0], 2, 1);
-		pic_set_irq1(&s->pics[0], 2, 0);
-	}
-	irq = pic_get_irq(&s->pics[0]);
-	if (irq >= 0)
-		s->irq_request(s->irq_request_opaque, 1);
-	else
-		s->irq_request(s->irq_request_opaque, 0);
-}
-
-void kvm_pic_update_irq(struct kvm_pic *s)
-{
-	pic_update_irq(s);
-}
-
-void kvm_pic_set_irq(void *opaque, int irq, int level)
-{
-	struct kvm_pic *s = opaque;
-
-	pic_set_irq1(&s->pics[irq >> 3], irq & 7, level);
-	pic_update_irq(s);
-}
-
-/*
- * acknowledge interrupt 'irq'
- */
-static inline void pic_intack(struct kvm_kpic_state *s, int irq)
-{
-	if (s->auto_eoi) {
-		if (s->rotate_on_auto_eoi)
-			s->priority_add = (irq + 1) & 7;
-	} else
-		s->isr |= (1 << irq);
-	/*
-	 * We don't clear a level sensitive interrupt here
-	 */
-	if (!(s->elcr & (1 << irq)))
-		s->irr &= ~(1 << irq);
-}
-
-int kvm_pic_read_irq(struct kvm_pic *s)
-{
-	int irq, irq2, intno;
-
-	irq = pic_get_irq(&s->pics[0]);
-	if (irq >= 0) {
-		pic_intack(&s->pics[0], irq);
-		if (irq == 2) {
-			irq2 = pic_get_irq(&s->pics[1]);
-			if (irq2 >= 0)
-				pic_intack(&s->pics[1], irq2);
-			else
-				/*
-				 * spurious IRQ on slave controller
-				 */
-				irq2 = 7;
-			intno = s->pics[1].irq_base + irq2;
-			irq = irq2 + 8;
-		} else
-			intno = s->pics[0].irq_base + irq;
-	} else {
-		/*
-		 * spurious IRQ on host controller
-		 */
-		irq = 7;
-		intno = s->pics[0].irq_base + irq;
-	}
-	pic_update_irq(s);
-
-	return intno;
-}
-
-void kvm_pic_reset(struct kvm_kpic_state *s)
-{
-	s->last_irr = 0;
-	s->irr = 0;
-	s->imr = 0;
-	s->isr = 0;
-	s->priority_add = 0;
-	s->irq_base = 0;
-	s->read_reg_select = 0;
-	s->poll = 0;
-	s->special_mask = 0;
-	s->init_state = 0;
-	s->auto_eoi = 0;
-	s->rotate_on_auto_eoi = 0;
-	s->special_fully_nested_mode = 0;
-	s->init4 = 0;
-}
-
-static void pic_ioport_write(void *opaque, u32 addr, u32 val)
-{
-	struct kvm_kpic_state *s = opaque;
-	int priority, cmd, irq;
-
-	addr &= 1;
-	if (addr == 0) {
-		if (val & 0x10) {
-			kvm_pic_reset(s);	/* init */
-			/*
-			 * deassert a pending interrupt
-			 */
-			s->pics_state->irq_request(s->pics_state->
-						   irq_request_opaque, 0);
-			s->init_state = 1;
-			s->init4 = val & 1;
-			if (val & 0x02)
-				printk(KERN_ERR "single mode not supported");
-			if (val & 0x08)
-				printk(KERN_ERR
-				       "level sensitive irq not supported");
-		} else if (val & 0x08) {
-			if (val & 0x04)
-				s->poll = 1;
-			if (val & 0x02)
-				s->read_reg_select = val & 1;
-			if (val & 0x40)
-				s->special_mask = (val >> 5) & 1;
-		} else {
-			cmd = val >> 5;
-			switch (cmd) {
-			case 0:
-			case 4:
-				s->rotate_on_auto_eoi = cmd >> 2;
-				break;
-			case 1:	/* end of interrupt */
-			case 5:
-				priority = get_priority(s, s->isr);
-				if (priority != 8) {
-					irq = (priority + s->priority_add) & 7;
-					s->isr &= ~(1 << irq);
-					if (cmd == 5)
-						s->priority_add = (irq + 1) & 7;
-					pic_update_irq(s->pics_state);
-				}
-				break;
-			case 3:
-				irq = val & 7;
-				s->isr &= ~(1 << irq);
-				pic_update_irq(s->pics_state);
-				break;
-			case 6:
-				s->priority_add = (val + 1) & 7;
-				pic_update_irq(s->pics_state);
-				break;
-			case 7:
-				irq = val & 7;
-				s->isr &= ~(1 << irq);
-				s->priority_add = (irq + 1) & 7;
-				pic_update_irq(s->pics_state);
-				break;
-			default:
-				break;	/* no operation */
-			}
-		}
-	} else
-		switch (s->init_state) {
-		case 0:		/* normal mode */
-			s->imr = val;
-			pic_update_irq(s->pics_state);
-			break;
-		case 1:
-			s->irq_base = val & 0xf8;
-			s->init_state = 2;
-			break;
-		case 2:
-			if (s->init4)
-				s->init_state = 3;
-			else
-				s->init_state = 0;
-			break;
-		case 3:
-			s->special_fully_nested_mode = (val >> 4) & 1;
-			s->auto_eoi = (val >> 1) & 1;
-			s->init_state = 0;
-			break;
-		}
-}
-
-static u32 pic_poll_read(struct kvm_kpic_state *s, u32 addr1)
-{
-	int ret;
-
-	ret = pic_get_irq(s);
-	if (ret >= 0) {
-		if (addr1 >> 7) {
-			s->pics_state->pics[0].isr &= ~(1 << 2);
-			s->pics_state->pics[0].irr &= ~(1 << 2);
-		}
-		s->irr &= ~(1 << ret);
-		s->isr &= ~(1 << ret);
-		if (addr1 >> 7 || ret != 2)
-			pic_update_irq(s->pics_state);
-	} else {
-		ret = 0x07;
-		pic_update_irq(s->pics_state);
-	}
-
-	return ret;
-}
-
-static u32 pic_ioport_read(void *opaque, u32 addr1)
-{
-	struct kvm_kpic_state *s = opaque;
-	unsigned int addr;
-	int ret;
-
-	addr = addr1;
-	addr &= 1;
-	if (s->poll) {
-		ret = pic_poll_read(s, addr1);
-		s->poll = 0;
-	} else
-		if (addr == 0)
-			if (s->read_reg_select)
-				ret = s->isr;
-			else
-				ret = s->irr;
-		else
-			ret = s->imr;
-	return ret;
-}
-
-static void elcr_ioport_write(void *opaque, u32 addr, u32 val)
-{
-	struct kvm_kpic_state *s = opaque;
-	s->elcr = val & s->elcr_mask;
-}
-
-static u32 elcr_ioport_read(void *opaque, u32 addr1)
-{
-	struct kvm_kpic_state *s = opaque;
-	return s->elcr;
-}
-
-static int picdev_in_range(struct kvm_io_device *this, gpa_t addr)
-{
-	switch (addr) {
-	case 0x20:
-	case 0x21:
-	case 0xa0:
-	case 0xa1:
-	case 0x4d0:
-	case 0x4d1:
-		return 1;
-	default:
-		return 0;
-	}
-}
-
-static void picdev_write(struct kvm_io_device *this,
-			 gpa_t addr, int len, const void *val)
-{
-	struct kvm_pic *s = this->private;
-	unsigned char data = *(unsigned char *)val;
-
-	if (len != 1) {
-		if (printk_ratelimit())
-			printk(KERN_ERR "PIC: non byte write\n");
-		return;
-	}
-	switch (addr) {
-	case 0x20:
-	case 0x21:
-	case 0xa0:
-	case 0xa1:
-		pic_ioport_write(&s->pics[addr >> 7], addr, data);
-		break;
-	case 0x4d0:
-	case 0x4d1:
-		elcr_ioport_write(&s->pics[addr & 1], addr, data);
-		break;
-	}
-}
-
-static void picdev_read(struct kvm_io_device *this,
-			gpa_t addr, int len, void *val)
-{
-	struct kvm_pic *s = this->private;
-	unsigned char data = 0;
-
-	if (len != 1) {
-		if (printk_ratelimit())
-			printk(KERN_ERR "PIC: non byte read\n");
-		return;
-	}
-	switch (addr) {
-	case 0x20:
-	case 0x21:
-	case 0xa0:
-	case 0xa1:
-		data = pic_ioport_read(&s->pics[addr >> 7], addr);
-		break;
-	case 0x4d0:
-	case 0x4d1:
-		data = elcr_ioport_read(&s->pics[addr & 1], addr);
-		break;
-	}
-	*(unsigned char *)val = data;
-}
-
-/*
- * callback when PIC0 irq status changed
- */
-static void pic_irq_request(void *opaque, int level)
-{
-	struct kvm *kvm = opaque;
-	struct kvm_vcpu *vcpu = kvm->vcpus[0];
-
-	pic_irqchip(kvm)->output = level;
-	if (vcpu)
-		kvm_vcpu_kick(vcpu);
-}
-
-struct kvm_pic *kvm_create_pic(struct kvm *kvm)
-{
-	struct kvm_pic *s;
-	s = kzalloc(sizeof(struct kvm_pic), GFP_KERNEL);
-	if (!s)
-		return NULL;
-	s->pics[0].elcr_mask = 0xf8;
-	s->pics[1].elcr_mask = 0xde;
-	s->irq_request = pic_irq_request;
-	s->irq_request_opaque = kvm;
-	s->pics[0].pics_state = s;
-	s->pics[1].pics_state = s;
-
-	/*
-	 * Initialize PIO device
-	 */
-	s->dev.read = picdev_read;
-	s->dev.write = picdev_write;
-	s->dev.in_range = picdev_in_range;
-	s->dev.private = s;
-	kvm_io_bus_register_dev(&kvm->pio_bus, &s->dev);
-	return s;
-}
diff --git a/drivers/kvm/ioapic.c b/drivers/kvm/ioapic.c
deleted file mode 100644
index f8236774c1b4..000000000000
--- a/drivers/kvm/ioapic.c
+++ /dev/null
@@ -1,402 +0,0 @@
-/*
- *  Copyright (C) 2001  MandrakeSoft S.A.
- *
- *    MandrakeSoft S.A.
- *    43, rue d'Aboukir
- *    75002 Paris - France
- *    http://www.linux-mandrake.com/
- *    http://www.mandrakesoft.com/
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- *
- *  Yunhong Jiang <yunhong.jiang@intel.com>
- *  Yaozu (Eddie) Dong <eddie.dong@intel.com>
- *  Based on Xen 3.1 code.
- */
-
-#include "kvm.h"
-#include "x86.h"
-
-#include <linux/kvm.h>
-#include <linux/mm.h>
-#include <linux/highmem.h>
-#include <linux/smp.h>
-#include <linux/hrtimer.h>
-#include <linux/io.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/current.h>
-#include "irq.h"
-#if 0
-#define ioapic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg)
-#else
-#define ioapic_debug(fmt, arg...)
-#endif
-static void ioapic_deliver(struct kvm_ioapic *vioapic, int irq);
-
-static unsigned long ioapic_read_indirect(struct kvm_ioapic *ioapic,
-					  unsigned long addr,
-					  unsigned long length)
-{
-	unsigned long result = 0;
-
-	switch (ioapic->ioregsel) {
-	case IOAPIC_REG_VERSION:
-		result = ((((IOAPIC_NUM_PINS - 1) & 0xff) << 16)
-			  | (IOAPIC_VERSION_ID & 0xff));
-		break;
-
-	case IOAPIC_REG_APIC_ID:
-	case IOAPIC_REG_ARB_ID:
-		result = ((ioapic->id & 0xf) << 24);
-		break;
-
-	default:
-		{
-			u32 redir_index = (ioapic->ioregsel - 0x10) >> 1;
-			u64 redir_content;
-
-			ASSERT(redir_index < IOAPIC_NUM_PINS);
-
-			redir_content = ioapic->redirtbl[redir_index].bits;
-			result = (ioapic->ioregsel & 0x1) ?
-			    (redir_content >> 32) & 0xffffffff :
-			    redir_content & 0xffffffff;
-			break;
-		}
-	}
-
-	return result;
-}
-
-static void ioapic_service(struct kvm_ioapic *ioapic, unsigned int idx)
-{
-	union ioapic_redir_entry *pent;
-
-	pent = &ioapic->redirtbl[idx];
-
-	if (!pent->fields.mask) {
-		ioapic_deliver(ioapic, idx);
-		if (pent->fields.trig_mode == IOAPIC_LEVEL_TRIG)
-			pent->fields.remote_irr = 1;
-	}
-	if (!pent->fields.trig_mode)
-		ioapic->irr &= ~(1 << idx);
-}
-
-static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
-{
-	unsigned index;
-
-	switch (ioapic->ioregsel) {
-	case IOAPIC_REG_VERSION:
-		/* Writes are ignored. */
-		break;
-
-	case IOAPIC_REG_APIC_ID:
-		ioapic->id = (val >> 24) & 0xf;
-		break;
-
-	case IOAPIC_REG_ARB_ID:
-		break;
-
-	default:
-		index = (ioapic->ioregsel - 0x10) >> 1;
-
-		ioapic_debug("change redir index %x val %x\n", index, val);
-		if (index >= IOAPIC_NUM_PINS)
-			return;
-		if (ioapic->ioregsel & 1) {
-			ioapic->redirtbl[index].bits &= 0xffffffff;
-			ioapic->redirtbl[index].bits |= (u64) val << 32;
-		} else {
-			ioapic->redirtbl[index].bits &= ~0xffffffffULL;
-			ioapic->redirtbl[index].bits |= (u32) val;
-			ioapic->redirtbl[index].fields.remote_irr = 0;
-		}
-		if (ioapic->irr & (1 << index))
-			ioapic_service(ioapic, index);
-		break;
-	}
-}
-
-static void ioapic_inj_irq(struct kvm_ioapic *ioapic,
-			   struct kvm_vcpu *vcpu,
-			   u8 vector, u8 trig_mode, u8 delivery_mode)
-{
-	ioapic_debug("irq %d trig %d deliv %d\n", vector, trig_mode,
-		     delivery_mode);
-
-	ASSERT((delivery_mode == IOAPIC_FIXED) ||
-	       (delivery_mode == IOAPIC_LOWEST_PRIORITY));
-
-	kvm_apic_set_irq(vcpu, vector, trig_mode);
-}
-
-static u32 ioapic_get_delivery_bitmask(struct kvm_ioapic *ioapic, u8 dest,
-				       u8 dest_mode)
-{
-	u32 mask = 0;
-	int i;
-	struct kvm *kvm = ioapic->kvm;
-	struct kvm_vcpu *vcpu;
-
-	ioapic_debug("dest %d dest_mode %d\n", dest, dest_mode);
-
-	if (dest_mode == 0) {	/* Physical mode. */
-		if (dest == 0xFF) {	/* Broadcast. */
-			for (i = 0; i < KVM_MAX_VCPUS; ++i)
-				if (kvm->vcpus[i] && kvm->vcpus[i]->arch.apic)
-					mask |= 1 << i;
-			return mask;
-		}
-		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
-			vcpu = kvm->vcpus[i];
-			if (!vcpu)
-				continue;
-			if (kvm_apic_match_physical_addr(vcpu->arch.apic, dest)) {
-				if (vcpu->arch.apic)
-					mask = 1 << i;
-				break;
-			}
-		}
-	} else if (dest != 0)	/* Logical mode, MDA non-zero. */
-		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
-			vcpu = kvm->vcpus[i];
-			if (!vcpu)
-				continue;
-			if (vcpu->arch.apic &&
-			    kvm_apic_match_logical_addr(vcpu->arch.apic, dest))
-				mask |= 1 << vcpu->vcpu_id;
-		}
-	ioapic_debug("mask %x\n", mask);
-	return mask;
-}
-
-static void ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
-{
-	u8 dest = ioapic->redirtbl[irq].fields.dest_id;
-	u8 dest_mode = ioapic->redirtbl[irq].fields.dest_mode;
-	u8 delivery_mode = ioapic->redirtbl[irq].fields.delivery_mode;
-	u8 vector = ioapic->redirtbl[irq].fields.vector;
-	u8 trig_mode = ioapic->redirtbl[irq].fields.trig_mode;
-	u32 deliver_bitmask;
-	struct kvm_vcpu *vcpu;
-	int vcpu_id;
-
-	ioapic_debug("dest=%x dest_mode=%x delivery_mode=%x "
-		     "vector=%x trig_mode=%x\n",
-		     dest, dest_mode, delivery_mode, vector, trig_mode);
-
-	deliver_bitmask = ioapic_get_delivery_bitmask(ioapic, dest, dest_mode);
-	if (!deliver_bitmask) {
-		ioapic_debug("no target on destination\n");
-		return;
-	}
-
-	switch (delivery_mode) {
-	case IOAPIC_LOWEST_PRIORITY:
-		vcpu = kvm_get_lowest_prio_vcpu(ioapic->kvm, vector,
-				deliver_bitmask);
-		if (vcpu != NULL)
-			ioapic_inj_irq(ioapic, vcpu, vector,
-				       trig_mode, delivery_mode);
-		else
-			ioapic_debug("null lowest prio vcpu: "
-				     "mask=%x vector=%x delivery_mode=%x\n",
-				     deliver_bitmask, vector, IOAPIC_LOWEST_PRIORITY);
-		break;
-	case IOAPIC_FIXED:
-		for (vcpu_id = 0; deliver_bitmask != 0; vcpu_id++) {
-			if (!(deliver_bitmask & (1 << vcpu_id)))
-				continue;
-			deliver_bitmask &= ~(1 << vcpu_id);
-			vcpu = ioapic->kvm->vcpus[vcpu_id];
-			if (vcpu) {
-				ioapic_inj_irq(ioapic, vcpu, vector,
-					       trig_mode, delivery_mode);
-			}
-		}
-		break;
-
-		/* TODO: NMI */
-	default:
-		printk(KERN_WARNING "Unsupported delivery mode %d\n",
-		       delivery_mode);
-		break;
-	}
-}
-
-void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)
-{
-	u32 old_irr = ioapic->irr;
-	u32 mask = 1 << irq;
-	union ioapic_redir_entry entry;
-
-	if (irq >= 0 && irq < IOAPIC_NUM_PINS) {
-		entry = ioapic->redirtbl[irq];
-		level ^= entry.fields.polarity;
-		if (!level)
-			ioapic->irr &= ~mask;
-		else {
-			ioapic->irr |= mask;
-			if ((!entry.fields.trig_mode && old_irr != ioapic->irr)
-			    || !entry.fields.remote_irr)
-				ioapic_service(ioapic, irq);
-		}
-	}
-}
-
-static int get_eoi_gsi(struct kvm_ioapic *ioapic, int vector)
-{
-	int i;
-
-	for (i = 0; i < IOAPIC_NUM_PINS; i++)
-		if (ioapic->redirtbl[i].fields.vector == vector)
-			return i;
-	return -1;
-}
-
-void kvm_ioapic_update_eoi(struct kvm *kvm, int vector)
-{
-	struct kvm_ioapic *ioapic = kvm->arch.vioapic;
-	union ioapic_redir_entry *ent;
-	int gsi;
-
-	gsi = get_eoi_gsi(ioapic, vector);
-	if (gsi == -1) {
-		printk(KERN_WARNING "Can't find redir item for %d EOI\n",
-		       vector);
-		return;
-	}
-
-	ent = &ioapic->redirtbl[gsi];
-	ASSERT(ent->fields.trig_mode == IOAPIC_LEVEL_TRIG);
-
-	ent->fields.remote_irr = 0;
-	if (!ent->fields.mask && (ioapic->irr & (1 << gsi)))
-		ioapic_deliver(ioapic, gsi);
-}
-
-static int ioapic_in_range(struct kvm_io_device *this, gpa_t addr)
-{
-	struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private;
-
-	return ((addr >= ioapic->base_address &&
-		 (addr < ioapic->base_address + IOAPIC_MEM_LENGTH)));
-}
-
-static void ioapic_mmio_read(struct kvm_io_device *this, gpa_t addr, int len,
-			     void *val)
-{
-	struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private;
-	u32 result;
-
-	ioapic_debug("addr %lx\n", (unsigned long)addr);
-	ASSERT(!(addr & 0xf));	/* check alignment */
-
-	addr &= 0xff;
-	switch (addr) {
-	case IOAPIC_REG_SELECT:
-		result = ioapic->ioregsel;
-		break;
-
-	case IOAPIC_REG_WINDOW:
-		result = ioapic_read_indirect(ioapic, addr, len);
-		break;
-
-	default:
-		result = 0;
-		break;
-	}
-	switch (len) {
-	case 8:
-		*(u64 *) val = result;
-		break;
-	case 1:
-	case 2:
-	case 4:
-		memcpy(val, (char *)&result, len);
-		break;
-	default:
-		printk(KERN_WARNING "ioapic: wrong length %d\n", len);
-	}
-}
-
-static void ioapic_mmio_write(struct kvm_io_device *this, gpa_t addr, int len,
-			      const void *val)
-{
-	struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private;
-	u32 data;
-
-	ioapic_debug("ioapic_mmio_write addr=%p len=%d val=%p\n",
-		     (void*)addr, len, val);
-	ASSERT(!(addr & 0xf));	/* check alignment */
-	if (len == 4 || len == 8)
-		data = *(u32 *) val;
-	else {
-		printk(KERN_WARNING "ioapic: Unsupported size %d\n", len);
-		return;
-	}
-
-	addr &= 0xff;
-	switch (addr) {
-	case IOAPIC_REG_SELECT:
-		ioapic->ioregsel = data;
-		break;
-
-	case IOAPIC_REG_WINDOW:
-		ioapic_write_indirect(ioapic, data);
-		break;
-#ifdef	CONFIG_IA64
-	case IOAPIC_REG_EOI:
-		kvm_ioapic_update_eoi(ioapic, data);
-		break;
-#endif
-
-	default:
-		break;
-	}
-}
-
-void kvm_ioapic_reset(struct kvm_ioapic *ioapic)
-{
-	int i;
-
-	for (i = 0; i < IOAPIC_NUM_PINS; i++)
-		ioapic->redirtbl[i].fields.mask = 1;
-	ioapic->base_address = IOAPIC_DEFAULT_BASE_ADDRESS;
-	ioapic->ioregsel = 0;
-	ioapic->irr = 0;
-	ioapic->id = 0;
-}
-
-int kvm_ioapic_init(struct kvm *kvm)
-{
-	struct kvm_ioapic *ioapic;
-
-	ioapic = kzalloc(sizeof(struct kvm_ioapic), GFP_KERNEL);
-	if (!ioapic)
-		return -ENOMEM;
-	kvm->arch.vioapic = ioapic;
-	kvm_ioapic_reset(ioapic);
-	ioapic->dev.read = ioapic_mmio_read;
-	ioapic->dev.write = ioapic_mmio_write;
-	ioapic->dev.in_range = ioapic_in_range;
-	ioapic->dev.private = ioapic;
-	ioapic->kvm = kvm;
-	kvm_io_bus_register_dev(&kvm->mmio_bus, &ioapic->dev);
-	return 0;
-}
diff --git a/drivers/kvm/iodev.h b/drivers/kvm/iodev.h
index eb9e8a71843a..c14e642027b2 100644
--- a/drivers/kvm/iodev.h
+++ b/drivers/kvm/iodev.h
@@ -16,7 +16,7 @@
 #ifndef __KVM_IODEV_H__
 #define __KVM_IODEV_H__
 
-#include "types.h"
+#include <linux/kvm_types.h>
 
 struct kvm_io_device {
 	void (*read)(struct kvm_io_device *this,
diff --git a/drivers/kvm/irq.c b/drivers/kvm/irq.c
deleted file mode 100644
index 59b47c55fc76..000000000000
--- a/drivers/kvm/irq.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * irq.c: API for in kernel interrupt controller
- * Copyright (c) 2007, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
- * Place - Suite 330, Boston, MA 02111-1307 USA.
- * Authors:
- *   Yaozu (Eddie) Dong <Eddie.dong@intel.com>
- *
- */
-
-#include <linux/module.h>
-
-#include "kvm.h"
-#include "x86.h"
-#include "irq.h"
-
-/*
- * check if there is pending interrupt without
- * intack.
- */
-int kvm_cpu_has_interrupt(struct kvm_vcpu *v)
-{
-	struct kvm_pic *s;
-
-	if (kvm_apic_has_interrupt(v) == -1) {	/* LAPIC */
-		if (kvm_apic_accept_pic_intr(v)) {
-			s = pic_irqchip(v->kvm);	/* PIC */
-			return s->output;
-		} else
-			return 0;
-	}
-	return 1;
-}
-EXPORT_SYMBOL_GPL(kvm_cpu_has_interrupt);
-
-/*
- * Read pending interrupt vector and intack.
- */
-int kvm_cpu_get_interrupt(struct kvm_vcpu *v)
-{
-	struct kvm_pic *s;
-	int vector;
-
-	vector = kvm_get_apic_interrupt(v);	/* APIC */
-	if (vector == -1) {
-		if (kvm_apic_accept_pic_intr(v)) {
-			s = pic_irqchip(v->kvm);
-			s->output = 0;		/* PIC */
-			vector = kvm_pic_read_irq(s);
-		}
-	}
-	return vector;
-}
-EXPORT_SYMBOL_GPL(kvm_cpu_get_interrupt);
-
-static void vcpu_kick_intr(void *info)
-{
-#ifdef DEBUG
-	struct kvm_vcpu *vcpu = (struct kvm_vcpu *)info;
-	printk(KERN_DEBUG "vcpu_kick_intr %p \n", vcpu);
-#endif
-}
-
-void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
-{
-	int ipi_pcpu = vcpu->cpu;
-
-	if (waitqueue_active(&vcpu->wq)) {
-		wake_up_interruptible(&vcpu->wq);
-		++vcpu->stat.halt_wakeup;
-	}
-	if (vcpu->guest_mode)
-		smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0, 0);
-}
-
-void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu)
-{
-	kvm_inject_apic_timer_irqs(vcpu);
-	/* TODO: PIT, RTC etc. */
-}
-EXPORT_SYMBOL_GPL(kvm_inject_pending_timer_irqs);
-
-void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec)
-{
-	kvm_apic_timer_intr_post(vcpu, vec);
-	/* TODO: PIT, RTC etc. */
-}
-EXPORT_SYMBOL_GPL(kvm_timer_intr_post);
diff --git a/drivers/kvm/irq.h b/drivers/kvm/irq.h
deleted file mode 100644
index 6e023dc3f848..000000000000
--- a/drivers/kvm/irq.h
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * irq.h: in kernel interrupt controller related definitions
- * Copyright (c) 2007, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
- * Place - Suite 330, Boston, MA 02111-1307 USA.
- * Authors:
- *   Yaozu (Eddie) Dong <Eddie.dong@intel.com>
- *
- */
-
-#ifndef __IRQ_H
-#define __IRQ_H
-
-#include <linux/mm_types.h>
-#include <linux/hrtimer.h>
-#include <asm/kvm.h>
-#include "iodev.h"
-#include "kvm.h"
-
-struct kvm;
-struct kvm_vcpu;
-
-typedef void irq_request_func(void *opaque, int level);
-
-struct kvm_kpic_state {
-	u8 last_irr;	/* edge detection */
-	u8 irr;		/* interrupt request register */
-	u8 imr;		/* interrupt mask register */
-	u8 isr;		/* interrupt service register */
-	u8 priority_add;	/* highest irq priority */
-	u8 irq_base;
-	u8 read_reg_select;
-	u8 poll;
-	u8 special_mask;
-	u8 init_state;
-	u8 auto_eoi;
-	u8 rotate_on_auto_eoi;
-	u8 special_fully_nested_mode;
-	u8 init4;		/* true if 4 byte init */
-	u8 elcr;		/* PIIX edge/trigger selection */
-	u8 elcr_mask;
-	struct kvm_pic *pics_state;
-};
-
-struct kvm_pic {
-	struct kvm_kpic_state pics[2]; /* 0 is master pic, 1 is slave pic */
-	irq_request_func *irq_request;
-	void *irq_request_opaque;
-	int output;		/* intr from master PIC */
-	struct kvm_io_device dev;
-};
-
-struct kvm_pic *kvm_create_pic(struct kvm *kvm);
-void kvm_pic_set_irq(void *opaque, int irq, int level);
-int kvm_pic_read_irq(struct kvm_pic *s);
-void kvm_pic_update_irq(struct kvm_pic *s);
-
-#define IOAPIC_NUM_PINS  KVM_IOAPIC_NUM_PINS
-#define IOAPIC_VERSION_ID 0x11	/* IOAPIC version */
-#define IOAPIC_EDGE_TRIG  0
-#define IOAPIC_LEVEL_TRIG 1
-
-#define IOAPIC_DEFAULT_BASE_ADDRESS  0xfec00000
-#define IOAPIC_MEM_LENGTH            0x100
-
-/* Direct registers. */
-#define IOAPIC_REG_SELECT  0x00
-#define IOAPIC_REG_WINDOW  0x10
-#define IOAPIC_REG_EOI     0x40	/* IA64 IOSAPIC only */
-
-/* Indirect registers. */
-#define IOAPIC_REG_APIC_ID 0x00	/* x86 IOAPIC only */
-#define IOAPIC_REG_VERSION 0x01
-#define IOAPIC_REG_ARB_ID  0x02	/* x86 IOAPIC only */
-
-/*ioapic delivery mode*/
-#define	IOAPIC_FIXED			0x0
-#define	IOAPIC_LOWEST_PRIORITY		0x1
-#define	IOAPIC_PMI			0x2
-#define	IOAPIC_NMI			0x4
-#define	IOAPIC_INIT			0x5
-#define	IOAPIC_EXTINT			0x7
-
-struct kvm_ioapic {
-	u64 base_address;
-	u32 ioregsel;
-	u32 id;
-	u32 irr;
-	u32 pad;
-	union ioapic_redir_entry {
-		u64 bits;
-		struct {
-			u8 vector;
-			u8 delivery_mode:3;
-			u8 dest_mode:1;
-			u8 delivery_status:1;
-			u8 polarity:1;
-			u8 remote_irr:1;
-			u8 trig_mode:1;
-			u8 mask:1;
-			u8 reserve:7;
-			u8 reserved[4];
-			u8 dest_id;
-		} fields;
-	} redirtbl[IOAPIC_NUM_PINS];
-	struct kvm_io_device dev;
-	struct kvm *kvm;
-};
-
-struct kvm_lapic {
-	unsigned long base_address;
-	struct kvm_io_device dev;
-	struct {
-		atomic_t pending;
-		s64 period;	/* unit: ns */
-		u32 divide_count;
-		ktime_t last_update;
-		struct hrtimer dev;
-	} timer;
-	struct kvm_vcpu *vcpu;
-	struct page *regs_page;
-	void *regs;
-};
-
-#ifdef DEBUG
-#define ASSERT(x)  							\
-do {									\
-	if (!(x)) {							\
-		printk(KERN_EMERG "assertion failed %s: %d: %s\n",	\
-		       __FILE__, __LINE__, #x);				\
-		BUG();							\
-	}								\
-} while (0)
-#else
-#define ASSERT(x) do { } while (0)
-#endif
-
-static inline struct kvm_pic *pic_irqchip(struct kvm *kvm)
-{
-	return kvm->arch.vpic;
-}
-
-static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
-{
-	return kvm->arch.vioapic;
-}
-
-static inline int irqchip_in_kernel(struct kvm *kvm)
-{
-	return pic_irqchip(kvm) != NULL;
-}
-
-void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
-int kvm_apic_has_interrupt(struct kvm_vcpu *vcpu);
-int kvm_apic_accept_pic_intr(struct kvm_vcpu *vcpu);
-int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu);
-int kvm_create_lapic(struct kvm_vcpu *vcpu);
-void kvm_lapic_reset(struct kvm_vcpu *vcpu);
-void kvm_pic_reset(struct kvm_kpic_state *s);
-void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
-void kvm_free_lapic(struct kvm_vcpu *vcpu);
-u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu);
-void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8);
-void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value);
-
-struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
-				       unsigned long bitmap);
-u64 kvm_get_apic_base(struct kvm_vcpu *vcpu);
-void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data);
-int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest);
-void kvm_ioapic_update_eoi(struct kvm *kvm, int vector);
-int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda);
-int kvm_apic_set_irq(struct kvm_vcpu *vcpu, u8 vec, u8 trig);
-void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu);
-int kvm_ioapic_init(struct kvm *kvm);
-void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
-int kvm_lapic_enabled(struct kvm_vcpu *vcpu);
-int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);
-void kvm_apic_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
-void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
-void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
-void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
-void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu);
-
-#endif
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
deleted file mode 100644
index bf6a3b330a3d..000000000000
--- a/drivers/kvm/kvm.h
+++ /dev/null
@@ -1,289 +0,0 @@
-#ifndef __KVM_H
-#define __KVM_H
-
-/*
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- */
-
-#include <linux/types.h>
-#include <linux/hardirq.h>
-#include <linux/list.h>
-#include <linux/mutex.h>
-#include <linux/spinlock.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/preempt.h>
-#include <asm/signal.h>
-
-#include <linux/kvm.h>
-#include <linux/kvm_para.h>
-
-#include "types.h"
-
-#include "x86.h"
-
-#define KVM_MAX_VCPUS 4
-#define KVM_MEMORY_SLOTS 8
-/* memory slots that does not exposed to userspace */
-#define KVM_PRIVATE_MEM_SLOTS 4
-
-#define KVM_PIO_PAGE_OFFSET 1
-
-/*
- * vcpu->requests bit members
- */
-#define KVM_REQ_TLB_FLUSH          0
-
-
-struct kvm_vcpu;
-extern struct kmem_cache *kvm_vcpu_cache;
-
-struct kvm_guest_debug {
-	int enabled;
-	unsigned long bp[4];
-	int singlestep;
-};
-
-/*
- * It would be nice to use something smarter than a linear search, TBD...
- * Thankfully we dont expect many devices to register (famous last words :),
- * so until then it will suffice.  At least its abstracted so we can change
- * in one place.
- */
-struct kvm_io_bus {
-	int                   dev_count;
-#define NR_IOBUS_DEVS 6
-	struct kvm_io_device *devs[NR_IOBUS_DEVS];
-};
-
-void kvm_io_bus_init(struct kvm_io_bus *bus);
-void kvm_io_bus_destroy(struct kvm_io_bus *bus);
-struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr);
-void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
-			     struct kvm_io_device *dev);
-
-struct kvm_vcpu {
-	struct kvm *kvm;
-	struct preempt_notifier preempt_notifier;
-	int vcpu_id;
-	struct mutex mutex;
-	int   cpu;
-	struct kvm_run *run;
-	int guest_mode;
-	unsigned long requests;
-	struct kvm_guest_debug guest_debug;
-	int fpu_active;
-	int guest_fpu_loaded;
-	wait_queue_head_t wq;
-	int sigset_active;
-	sigset_t sigset;
-	struct kvm_vcpu_stat stat;
-
-#ifdef CONFIG_HAS_IOMEM
-	int mmio_needed;
-	int mmio_read_completed;
-	int mmio_is_write;
-	int mmio_size;
-	unsigned char mmio_data[8];
-	gpa_t mmio_phys_addr;
-#endif
-
-	struct kvm_vcpu_arch arch;
-};
-
-struct kvm_memory_slot {
-	gfn_t base_gfn;
-	unsigned long npages;
-	unsigned long flags;
-	unsigned long *rmap;
-	unsigned long *dirty_bitmap;
-	unsigned long userspace_addr;
-	int user_alloc;
-};
-
-struct kvm {
-	struct mutex lock; /* protects everything except vcpus */
-	struct mm_struct *mm; /* userspace tied to this vm */
-	int nmemslots;
-	struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
-					KVM_PRIVATE_MEM_SLOTS];
-	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
-	struct list_head vm_list;
-	struct file *filp;
-	struct kvm_io_bus mmio_bus;
-	struct kvm_io_bus pio_bus;
-	struct kvm_vm_stat stat;
-	struct kvm_arch arch;
-};
-
-/* The guest did something we don't support. */
-#define pr_unimpl(vcpu, fmt, ...)					\
- do {									\
-	if (printk_ratelimit())						\
-		printk(KERN_ERR "kvm: %i: cpu%i " fmt,			\
-		       current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
- } while (0)
-
-#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
-#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
-
-int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
-void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
-
-void vcpu_load(struct kvm_vcpu *vcpu);
-void vcpu_put(struct kvm_vcpu *vcpu);
-
-void decache_vcpus_on_cpu(int cpu);
-
-
-int kvm_init(void *opaque, unsigned int vcpu_size,
-		  struct module *module);
-void kvm_exit(void);
-
-#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
-#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
-static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
-struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva);
-
-extern struct page *bad_page;
-
-int is_error_page(struct page *page);
-int kvm_is_error_hva(unsigned long addr);
-int kvm_set_memory_region(struct kvm *kvm,
-			  struct kvm_userspace_memory_region *mem,
-			  int user_alloc);
-int __kvm_set_memory_region(struct kvm *kvm,
-			    struct kvm_userspace_memory_region *mem,
-			    int user_alloc);
-int kvm_arch_set_memory_region(struct kvm *kvm,
-				struct kvm_userspace_memory_region *mem,
-				struct kvm_memory_slot old,
-				int user_alloc);
-gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
-struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
-void kvm_release_page_clean(struct page *page);
-void kvm_release_page_dirty(struct page *page);
-int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
-			int len);
-int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
-int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
-			 int offset, int len);
-int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
-		    unsigned long len);
-int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
-int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
-struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
-int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
-void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
-
-void kvm_vcpu_block(struct kvm_vcpu *vcpu);
-void kvm_resched(struct kvm_vcpu *vcpu);
-void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
-void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
-void kvm_flush_remote_tlbs(struct kvm *kvm);
-
-long kvm_arch_dev_ioctl(struct file *filp,
-			unsigned int ioctl, unsigned long arg);
-long kvm_arch_vcpu_ioctl(struct file *filp,
-			 unsigned int ioctl, unsigned long arg);
-void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
-void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
-
-int kvm_dev_ioctl_check_extension(long ext);
-
-int kvm_get_dirty_log(struct kvm *kvm,
-			struct kvm_dirty_log *log, int *is_dirty);
-int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
-				struct kvm_dirty_log *log);
-
-int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
-				   struct
-				   kvm_userspace_memory_region *mem,
-				   int user_alloc);
-long kvm_arch_vm_ioctl(struct file *filp,
-		       unsigned int ioctl, unsigned long arg);
-void kvm_arch_destroy_vm(struct kvm *kvm);
-
-int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
-int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
-
-int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
-				    struct kvm_translation *tr);
-
-int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
-int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
-int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
-				  struct kvm_sregs *sregs);
-int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
-				  struct kvm_sregs *sregs);
-int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
-				    struct kvm_debug_guest *dbg);
-int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
-
-int kvm_arch_init(void *opaque);
-void kvm_arch_exit(void);
-
-int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
-void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
-
-void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
-void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
-void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
-struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id);
-int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
-void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
-
-int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
-void kvm_arch_hardware_enable(void *garbage);
-void kvm_arch_hardware_disable(void *garbage);
-int kvm_arch_hardware_setup(void);
-void kvm_arch_hardware_unsetup(void);
-void kvm_arch_check_processor_compat(void *rtn);
-int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
-
-void kvm_free_physmem(struct kvm *kvm);
-
-struct  kvm *kvm_arch_create_vm(void);
-void kvm_arch_destroy_vm(struct kvm *kvm);
-
-int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
-int kvm_cpu_has_interrupt(struct kvm_vcpu *v);
-
-static inline void kvm_guest_enter(void)
-{
-	account_system_vtime(current);
-	current->flags |= PF_VCPU;
-}
-
-static inline void kvm_guest_exit(void)
-{
-	account_system_vtime(current);
-	current->flags &= ~PF_VCPU;
-}
-
-static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
-{
-	return slot - kvm->memslots;
-}
-
-static inline gpa_t gfn_to_gpa(gfn_t gfn)
-{
-	return (gpa_t)gfn << PAGE_SHIFT;
-}
-
-enum kvm_stat_kind {
-	KVM_STAT_VM,
-	KVM_STAT_VCPU,
-};
-
-struct kvm_stats_debugfs_item {
-	const char *name;
-	int offset;
-	enum kvm_stat_kind kind;
-	struct dentry *dentry;
-};
-extern struct kvm_stats_debugfs_item debugfs_entries[];
-
-#endif
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index ae2a1bf640bc..4026d7d64296 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -15,9 +15,9 @@
  *
  */
 
-#include "kvm.h"
 #include "iodev.h"
 
+#include <linux/kvm_host.h>
 #include <linux/kvm.h>
 #include <linux/module.h>
 #include <linux/errno.h>
diff --git a/drivers/kvm/kvm_svm.h b/drivers/kvm/kvm_svm.h
deleted file mode 100644
index a0e415daef5b..000000000000
--- a/drivers/kvm/kvm_svm.h
+++ /dev/null
@@ -1,45 +0,0 @@
-#ifndef __KVM_SVM_H
-#define __KVM_SVM_H
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/list.h>
-#include <asm/msr.h>
-
-#include "svm.h"
-#include "kvm.h"
-
-static const u32 host_save_user_msrs[] = {
-#ifdef CONFIG_X86_64
-	MSR_STAR, MSR_LSTAR, MSR_CSTAR, MSR_SYSCALL_MASK, MSR_KERNEL_GS_BASE,
-	MSR_FS_BASE,
-#endif
-	MSR_IA32_SYSENTER_CS, MSR_IA32_SYSENTER_ESP, MSR_IA32_SYSENTER_EIP,
-};
-
-#define NR_HOST_SAVE_USER_MSRS ARRAY_SIZE(host_save_user_msrs)
-#define NUM_DB_REGS 4
-
-struct kvm_vcpu;
-
-struct vcpu_svm {
-	struct kvm_vcpu vcpu;
-	struct vmcb *vmcb;
-	unsigned long vmcb_pa;
-	struct svm_cpu_data *svm_data;
-	uint64_t asid_generation;
-
-	unsigned long db_regs[NUM_DB_REGS];
-
-	u64 next_rip;
-
-	u64 host_user_msrs[NR_HOST_SAVE_USER_MSRS];
-	u64 host_gs_base;
-	unsigned long host_cr2;
-	unsigned long host_db_regs[NUM_DB_REGS];
-	unsigned long host_dr6;
-	unsigned long host_dr7;
-};
-
-#endif
-
diff --git a/drivers/kvm/lapic.c b/drivers/kvm/lapic.c
deleted file mode 100644
index 8c74bf184a07..000000000000
--- a/drivers/kvm/lapic.c
+++ /dev/null
@@ -1,1087 +0,0 @@
-
-/*
- * Local APIC virtualization
- *
- * Copyright (C) 2006 Qumranet, Inc.
- * Copyright (C) 2007 Novell
- * Copyright (C) 2007 Intel
- *
- * Authors:
- *   Dor Laor <dor.laor@qumranet.com>
- *   Gregory Haskins <ghaskins@novell.com>
- *   Yaozu (Eddie) Dong <eddie.dong@intel.com>
- *
- * Based on Xen 3.1 code, Copyright (c) 2004, Intel Corporation.
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- */
-
-#include "kvm.h"
-#include "x86.h"
-
-#include <linux/kvm.h>
-#include <linux/mm.h>
-#include <linux/highmem.h>
-#include <linux/smp.h>
-#include <linux/hrtimer.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <asm/processor.h>
-#include <asm/msr.h>
-#include <asm/page.h>
-#include <asm/current.h>
-#include <asm/apicdef.h>
-#include <asm/atomic.h>
-#include <asm/div64.h>
-#include "irq.h"
-
-#define PRId64 "d"
-#define PRIx64 "llx"
-#define PRIu64 "u"
-#define PRIo64 "o"
-
-#define APIC_BUS_CYCLE_NS 1
-
-/* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */
-#define apic_debug(fmt, arg...)
-
-#define APIC_LVT_NUM			6
-/* 14 is the version for Xeon and Pentium 8.4.8*/
-#define APIC_VERSION			(0x14UL | ((APIC_LVT_NUM - 1) << 16))
-#define LAPIC_MMIO_LENGTH		(1 << 12)
-/* followed define is not in apicdef.h */
-#define APIC_SHORT_MASK			0xc0000
-#define APIC_DEST_NOSHORT		0x0
-#define APIC_DEST_MASK			0x800
-#define MAX_APIC_VECTOR			256
-
-#define VEC_POS(v) ((v) & (32 - 1))
-#define REG_POS(v) (((v) >> 5) << 4)
-
-static inline u32 apic_get_reg(struct kvm_lapic *apic, int reg_off)
-{
-	return *((u32 *) (apic->regs + reg_off));
-}
-
-static inline void apic_set_reg(struct kvm_lapic *apic, int reg_off, u32 val)
-{
-	*((u32 *) (apic->regs + reg_off)) = val;
-}
-
-static inline int apic_test_and_set_vector(int vec, void *bitmap)
-{
-	return test_and_set_bit(VEC_POS(vec), (bitmap) + REG_POS(vec));
-}
-
-static inline int apic_test_and_clear_vector(int vec, void *bitmap)
-{
-	return test_and_clear_bit(VEC_POS(vec), (bitmap) + REG_POS(vec));
-}
-
-static inline void apic_set_vector(int vec, void *bitmap)
-{
-	set_bit(VEC_POS(vec), (bitmap) + REG_POS(vec));
-}
-
-static inline void apic_clear_vector(int vec, void *bitmap)
-{
-	clear_bit(VEC_POS(vec), (bitmap) + REG_POS(vec));
-}
-
-static inline int apic_hw_enabled(struct kvm_lapic *apic)
-{
-	return (apic)->vcpu->arch.apic_base & MSR_IA32_APICBASE_ENABLE;
-}
-
-static inline int  apic_sw_enabled(struct kvm_lapic *apic)
-{
-	return apic_get_reg(apic, APIC_SPIV) & APIC_SPIV_APIC_ENABLED;
-}
-
-static inline int apic_enabled(struct kvm_lapic *apic)
-{
-	return apic_sw_enabled(apic) &&	apic_hw_enabled(apic);
-}
-
-#define LVT_MASK	\
-	(APIC_LVT_MASKED | APIC_SEND_PENDING | APIC_VECTOR_MASK)
-
-#define LINT_MASK	\
-	(LVT_MASK | APIC_MODE_MASK | APIC_INPUT_POLARITY | \
-	 APIC_LVT_REMOTE_IRR | APIC_LVT_LEVEL_TRIGGER)
-
-static inline int kvm_apic_id(struct kvm_lapic *apic)
-{
-	return (apic_get_reg(apic, APIC_ID) >> 24) & 0xff;
-}
-
-static inline int apic_lvt_enabled(struct kvm_lapic *apic, int lvt_type)
-{
-	return !(apic_get_reg(apic, lvt_type) & APIC_LVT_MASKED);
-}
-
-static inline int apic_lvt_vector(struct kvm_lapic *apic, int lvt_type)
-{
-	return apic_get_reg(apic, lvt_type) & APIC_VECTOR_MASK;
-}
-
-static inline int apic_lvtt_period(struct kvm_lapic *apic)
-{
-	return apic_get_reg(apic, APIC_LVTT) & APIC_LVT_TIMER_PERIODIC;
-}
-
-static unsigned int apic_lvt_mask[APIC_LVT_NUM] = {
-	LVT_MASK | APIC_LVT_TIMER_PERIODIC,	/* LVTT */
-	LVT_MASK | APIC_MODE_MASK,	/* LVTTHMR */
-	LVT_MASK | APIC_MODE_MASK,	/* LVTPC */
-	LINT_MASK, LINT_MASK,	/* LVT0-1 */
-	LVT_MASK		/* LVTERR */
-};
-
-static int find_highest_vector(void *bitmap)
-{
-	u32 *word = bitmap;
-	int word_offset = MAX_APIC_VECTOR >> 5;
-
-	while ((word_offset != 0) && (word[(--word_offset) << 2] == 0))
-		continue;
-
-	if (likely(!word_offset && !word[0]))
-		return -1;
-	else
-		return fls(word[word_offset << 2]) - 1 + (word_offset << 5);
-}
-
-static inline int apic_test_and_set_irr(int vec, struct kvm_lapic *apic)
-{
-	return apic_test_and_set_vector(vec, apic->regs + APIC_IRR);
-}
-
-static inline void apic_clear_irr(int vec, struct kvm_lapic *apic)
-{
-	apic_clear_vector(vec, apic->regs + APIC_IRR);
-}
-
-static inline int apic_find_highest_irr(struct kvm_lapic *apic)
-{
-	int result;
-
-	result = find_highest_vector(apic->regs + APIC_IRR);
-	ASSERT(result == -1 || result >= 16);
-
-	return result;
-}
-
-int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu)
-{
-	struct kvm_lapic *apic = vcpu->arch.apic;
-	int highest_irr;
-
-	if (!apic)
-		return 0;
-	highest_irr = apic_find_highest_irr(apic);
-
-	return highest_irr;
-}
-EXPORT_SYMBOL_GPL(kvm_lapic_find_highest_irr);
-
-int kvm_apic_set_irq(struct kvm_vcpu *vcpu, u8 vec, u8 trig)
-{
-	struct kvm_lapic *apic = vcpu->arch.apic;
-
-	if (!apic_test_and_set_irr(vec, apic)) {
-		/* a new pending irq is set in IRR */
-		if (trig)
-			apic_set_vector(vec, apic->regs + APIC_TMR);
-		else
-			apic_clear_vector(vec, apic->regs + APIC_TMR);
-		kvm_vcpu_kick(apic->vcpu);
-		return 1;
-	}
-	return 0;
-}
-
-static inline int apic_find_highest_isr(struct kvm_lapic *apic)
-{
-	int result;
-
-	result = find_highest_vector(apic->regs + APIC_ISR);
-	ASSERT(result == -1 || result >= 16);
-
-	return result;
-}
-
-static void apic_update_ppr(struct kvm_lapic *apic)
-{
-	u32 tpr, isrv, ppr;
-	int isr;
-
-	tpr = apic_get_reg(apic, APIC_TASKPRI);
-	isr = apic_find_highest_isr(apic);
-	isrv = (isr != -1) ? isr : 0;
-
-	if ((tpr & 0xf0) >= (isrv & 0xf0))
-		ppr = tpr & 0xff;
-	else
-		ppr = isrv & 0xf0;
-
-	apic_debug("vlapic %p, ppr 0x%x, isr 0x%x, isrv 0x%x",
-		   apic, ppr, isr, isrv);
-
-	apic_set_reg(apic, APIC_PROCPRI, ppr);
-}
-
-static void apic_set_tpr(struct kvm_lapic *apic, u32 tpr)
-{
-	apic_set_reg(apic, APIC_TASKPRI, tpr);
-	apic_update_ppr(apic);
-}
-
-int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest)
-{
-	return kvm_apic_id(apic) == dest;
-}
-
-int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda)
-{
-	int result = 0;
-	u8 logical_id;
-
-	logical_id = GET_APIC_LOGICAL_ID(apic_get_reg(apic, APIC_LDR));
-
-	switch (apic_get_reg(apic, APIC_DFR)) {
-	case APIC_DFR_FLAT:
-		if (logical_id & mda)
-			result = 1;
-		break;
-	case APIC_DFR_CLUSTER:
-		if (((logical_id >> 4) == (mda >> 0x4))
-		    && (logical_id & mda & 0xf))
-			result = 1;
-		break;
-	default:
-		printk(KERN_WARNING "Bad DFR vcpu %d: %08x\n",
-		       apic->vcpu->vcpu_id, apic_get_reg(apic, APIC_DFR));
-		break;
-	}
-
-	return result;
-}
-
-static int apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
-			   int short_hand, int dest, int dest_mode)
-{
-	int result = 0;
-	struct kvm_lapic *target = vcpu->arch.apic;
-
-	apic_debug("target %p, source %p, dest 0x%x, "
-		   "dest_mode 0x%x, short_hand 0x%x",
-		   target, source, dest, dest_mode, short_hand);
-
-	ASSERT(!target);
-	switch (short_hand) {
-	case APIC_DEST_NOSHORT:
-		if (dest_mode == 0) {
-			/* Physical mode. */
-			if ((dest == 0xFF) || (dest == kvm_apic_id(target)))
-				result = 1;
-		} else
-			/* Logical mode. */
-			result = kvm_apic_match_logical_addr(target, dest);
-		break;
-	case APIC_DEST_SELF:
-		if (target == source)
-			result = 1;
-		break;
-	case APIC_DEST_ALLINC:
-		result = 1;
-		break;
-	case APIC_DEST_ALLBUT:
-		if (target != source)
-			result = 1;
-		break;
-	default:
-		printk(KERN_WARNING "Bad dest shorthand value %x\n",
-		       short_hand);
-		break;
-	}
-
-	return result;
-}
-
-/*
- * Add a pending IRQ into lapic.
- * Return 1 if successfully added and 0 if discarded.
- */
-static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode,
-			     int vector, int level, int trig_mode)
-{
-	int orig_irr, result = 0;
-	struct kvm_vcpu *vcpu = apic->vcpu;
-
-	switch (delivery_mode) {
-	case APIC_DM_FIXED:
-	case APIC_DM_LOWEST:
-		/* FIXME add logic for vcpu on reset */
-		if (unlikely(!apic_enabled(apic)))
-			break;
-
-		orig_irr = apic_test_and_set_irr(vector, apic);
-		if (orig_irr && trig_mode) {
-			apic_debug("level trig mode repeatedly for vector %d",
-				   vector);
-			break;
-		}
-
-		if (trig_mode) {
-			apic_debug("level trig mode for vector %d", vector);
-			apic_set_vector(vector, apic->regs + APIC_TMR);
-		} else
-			apic_clear_vector(vector, apic->regs + APIC_TMR);
-
-		if (vcpu->arch.mp_state == VCPU_MP_STATE_RUNNABLE)
-			kvm_vcpu_kick(vcpu);
-		else if (vcpu->arch.mp_state == VCPU_MP_STATE_HALTED) {
-			vcpu->arch.mp_state = VCPU_MP_STATE_RUNNABLE;
-			if (waitqueue_active(&vcpu->wq))
-				wake_up_interruptible(&vcpu->wq);
-		}
-
-		result = (orig_irr == 0);
-		break;
-
-	case APIC_DM_REMRD:
-		printk(KERN_DEBUG "Ignoring delivery mode 3\n");
-		break;
-
-	case APIC_DM_SMI:
-		printk(KERN_DEBUG "Ignoring guest SMI\n");
-		break;
-	case APIC_DM_NMI:
-		printk(KERN_DEBUG "Ignoring guest NMI\n");
-		break;
-
-	case APIC_DM_INIT:
-		if (level) {
-			if (vcpu->arch.mp_state == VCPU_MP_STATE_RUNNABLE)
-				printk(KERN_DEBUG
-				       "INIT on a runnable vcpu %d\n",
-				       vcpu->vcpu_id);
-			vcpu->arch.mp_state = VCPU_MP_STATE_INIT_RECEIVED;
-			kvm_vcpu_kick(vcpu);
-		} else {
-			printk(KERN_DEBUG
-			       "Ignoring de-assert INIT to vcpu %d\n",
-			       vcpu->vcpu_id);
-		}
-
-		break;
-
-	case APIC_DM_STARTUP:
-		printk(KERN_DEBUG "SIPI to vcpu %d vector 0x%02x\n",
-		       vcpu->vcpu_id, vector);
-		if (vcpu->arch.mp_state == VCPU_MP_STATE_INIT_RECEIVED) {
-			vcpu->arch.sipi_vector = vector;
-			vcpu->arch.mp_state = VCPU_MP_STATE_SIPI_RECEIVED;
-			if (waitqueue_active(&vcpu->wq))
-				wake_up_interruptible(&vcpu->wq);
-		}
-		break;
-
-	default:
-		printk(KERN_ERR "TODO: unsupported delivery mode %x\n",
-		       delivery_mode);
-		break;
-	}
-	return result;
-}
-
-static struct kvm_lapic *kvm_apic_round_robin(struct kvm *kvm, u8 vector,
-				       unsigned long bitmap)
-{
-	int last;
-	int next;
-	struct kvm_lapic *apic = NULL;
-
-	last = kvm->arch.round_robin_prev_vcpu;
-	next = last;
-
-	do {
-		if (++next == KVM_MAX_VCPUS)
-			next = 0;
-		if (kvm->vcpus[next] == NULL || !test_bit(next, &bitmap))
-			continue;
-		apic = kvm->vcpus[next]->arch.apic;
-		if (apic && apic_enabled(apic))
-			break;
-		apic = NULL;
-	} while (next != last);
-	kvm->arch.round_robin_prev_vcpu = next;
-
-	if (!apic)
-		printk(KERN_DEBUG "vcpu not ready for apic_round_robin\n");
-
-	return apic;
-}
-
-struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
-		unsigned long bitmap)
-{
-	struct kvm_lapic *apic;
-
-	apic = kvm_apic_round_robin(kvm, vector, bitmap);
-	if (apic)
-		return apic->vcpu;
-	return NULL;
-}
-
-static void apic_set_eoi(struct kvm_lapic *apic)
-{
-	int vector = apic_find_highest_isr(apic);
-
-	/*
-	 * Not every write EOI will has corresponding ISR,
-	 * one example is when Kernel check timer on setup_IO_APIC
-	 */
-	if (vector == -1)
-		return;
-
-	apic_clear_vector(vector, apic->regs + APIC_ISR);
-	apic_update_ppr(apic);
-
-	if (apic_test_and_clear_vector(vector, apic->regs + APIC_TMR))
-		kvm_ioapic_update_eoi(apic->vcpu->kvm, vector);
-}
-
-static void apic_send_ipi(struct kvm_lapic *apic)
-{
-	u32 icr_low = apic_get_reg(apic, APIC_ICR);
-	u32 icr_high = apic_get_reg(apic, APIC_ICR2);
-
-	unsigned int dest = GET_APIC_DEST_FIELD(icr_high);
-	unsigned int short_hand = icr_low & APIC_SHORT_MASK;
-	unsigned int trig_mode = icr_low & APIC_INT_LEVELTRIG;
-	unsigned int level = icr_low & APIC_INT_ASSERT;
-	unsigned int dest_mode = icr_low & APIC_DEST_MASK;
-	unsigned int delivery_mode = icr_low & APIC_MODE_MASK;
-	unsigned int vector = icr_low & APIC_VECTOR_MASK;
-
-	struct kvm_vcpu *target;
-	struct kvm_vcpu *vcpu;
-	unsigned long lpr_map = 0;
-	int i;
-
-	apic_debug("icr_high 0x%x, icr_low 0x%x, "
-		   "short_hand 0x%x, dest 0x%x, trig_mode 0x%x, level 0x%x, "
-		   "dest_mode 0x%x, delivery_mode 0x%x, vector 0x%x\n",
-		   icr_high, icr_low, short_hand, dest,
-		   trig_mode, level, dest_mode, delivery_mode, vector);
-
-	for (i = 0; i < KVM_MAX_VCPUS; i++) {
-		vcpu = apic->vcpu->kvm->vcpus[i];
-		if (!vcpu)
-			continue;
-
-		if (vcpu->arch.apic &&
-		    apic_match_dest(vcpu, apic, short_hand, dest, dest_mode)) {
-			if (delivery_mode == APIC_DM_LOWEST)
-				set_bit(vcpu->vcpu_id, &lpr_map);
-			else
-				__apic_accept_irq(vcpu->arch.apic, delivery_mode,
-						  vector, level, trig_mode);
-		}
-	}
-
-	if (delivery_mode == APIC_DM_LOWEST) {
-		target = kvm_get_lowest_prio_vcpu(vcpu->kvm, vector, lpr_map);
-		if (target != NULL)
-			__apic_accept_irq(target->arch.apic, delivery_mode,
-					  vector, level, trig_mode);
-	}
-}
-
-static u32 apic_get_tmcct(struct kvm_lapic *apic)
-{
-	u64 counter_passed;
-	ktime_t passed, now;
-	u32 tmcct;
-
-	ASSERT(apic != NULL);
-
-	now = apic->timer.dev.base->get_time();
-	tmcct = apic_get_reg(apic, APIC_TMICT);
-
-	/* if initial count is 0, current count should also be 0 */
-	if (tmcct == 0)
-		return 0;
-
-	if (unlikely(ktime_to_ns(now) <=
-		ktime_to_ns(apic->timer.last_update))) {
-		/* Wrap around */
-		passed = ktime_add(( {
-				    (ktime_t) {
-				    .tv64 = KTIME_MAX -
-				    (apic->timer.last_update).tv64}; }
-				   ), now);
-		apic_debug("time elapsed\n");
-	} else
-		passed = ktime_sub(now, apic->timer.last_update);
-
-	counter_passed = div64_64(ktime_to_ns(passed),
-				  (APIC_BUS_CYCLE_NS * apic->timer.divide_count));
-
-	if (counter_passed > tmcct) {
-		if (unlikely(!apic_lvtt_period(apic))) {
-			/* one-shot timers stick at 0 until reset */
-			tmcct = 0;
-		} else {
-			/*
-			 * periodic timers reset to APIC_TMICT when they
-			 * hit 0. The while loop simulates this happening N
-			 * times. (counter_passed %= tmcct) would also work,
-			 * but might be slower or not work on 32-bit??
-			 */
-			while (counter_passed > tmcct)
-				counter_passed -= tmcct;
-			tmcct -= counter_passed;
-		}
-	} else {
-		tmcct -= counter_passed;
-	}
-
-	return tmcct;
-}
-
-static u32 __apic_read(struct kvm_lapic *apic, unsigned int offset)
-{
-	u32 val = 0;
-
-	if (offset >= LAPIC_MMIO_LENGTH)
-		return 0;
-
-	switch (offset) {
-	case APIC_ARBPRI:
-		printk(KERN_WARNING "Access APIC ARBPRI register "
-		       "which is for P6\n");
-		break;
-
-	case APIC_TMCCT:	/* Timer CCR */
-		val = apic_get_tmcct(apic);
-		break;
-
-	default:
-		apic_update_ppr(apic);
-		val = apic_get_reg(apic, offset);
-		break;
-	}
-
-	return val;
-}
-
-static void apic_mmio_read(struct kvm_io_device *this,
-			   gpa_t address, int len, void *data)
-{
-	struct kvm_lapic *apic = (struct kvm_lapic *)this->private;
-	unsigned int offset = address - apic->base_address;
-	unsigned char alignment = offset & 0xf;
-	u32 result;
-
-	if ((alignment + len) > 4) {
-		printk(KERN_ERR "KVM_APIC_READ: alignment error %lx %d",
-		       (unsigned long)address, len);
-		return;
-	}
-	result = __apic_read(apic, offset & ~0xf);
-
-	switch (len) {
-	case 1:
-	case 2:
-	case 4:
-		memcpy(data, (char *)&result + alignment, len);
-		break;
-	default:
-		printk(KERN_ERR "Local APIC read with len = %x, "
-		       "should be 1,2, or 4 instead\n", len);
-		break;
-	}
-}
-
-static void update_divide_count(struct kvm_lapic *apic)
-{
-	u32 tmp1, tmp2, tdcr;
-
-	tdcr = apic_get_reg(apic, APIC_TDCR);
-	tmp1 = tdcr & 0xf;
-	tmp2 = ((tmp1 & 0x3) | ((tmp1 & 0x8) >> 1)) + 1;
-	apic->timer.divide_count = 0x1 << (tmp2 & 0x7);
-
-	apic_debug("timer divide count is 0x%x\n",
-				   apic->timer.divide_count);
-}
-
-static void start_apic_timer(struct kvm_lapic *apic)
-{
-	ktime_t now = apic->timer.dev.base->get_time();
-
-	apic->timer.last_update = now;
-
-	apic->timer.period = apic_get_reg(apic, APIC_TMICT) *
-		    APIC_BUS_CYCLE_NS * apic->timer.divide_count;
-	atomic_set(&apic->timer.pending, 0);
-	hrtimer_start(&apic->timer.dev,
-		      ktime_add_ns(now, apic->timer.period),
-		      HRTIMER_MODE_ABS);
-
-	apic_debug("%s: bus cycle is %" PRId64 "ns, now 0x%016"
-			   PRIx64 ", "
-			   "timer initial count 0x%x, period %lldns, "
-			   "expire @ 0x%016" PRIx64 ".\n", __FUNCTION__,
-			   APIC_BUS_CYCLE_NS, ktime_to_ns(now),
-			   apic_get_reg(apic, APIC_TMICT),
-			   apic->timer.period,
-			   ktime_to_ns(ktime_add_ns(now,
-					apic->timer.period)));
-}
-
-static void apic_mmio_write(struct kvm_io_device *this,
-			    gpa_t address, int len, const void *data)
-{
-	struct kvm_lapic *apic = (struct kvm_lapic *)this->private;
-	unsigned int offset = address - apic->base_address;
-	unsigned char alignment = offset & 0xf;
-	u32 val;
-
-	/*
-	 * APIC register must be aligned on 128-bits boundary.
-	 * 32/64/128 bits registers must be accessed thru 32 bits.
-	 * Refer SDM 8.4.1
-	 */
-	if (len != 4 || alignment) {
-		if (printk_ratelimit())
-			printk(KERN_ERR "apic write: bad size=%d %lx\n",
-			       len, (long)address);
-		return;
-	}
-
-	val = *(u32 *) data;
-
-	/* too common printing */
-	if (offset != APIC_EOI)
-		apic_debug("%s: offset 0x%x with length 0x%x, and value is "
-			   "0x%x\n", __FUNCTION__, offset, len, val);
-
-	offset &= 0xff0;
-
-	switch (offset) {
-	case APIC_ID:		/* Local APIC ID */
-		apic_set_reg(apic, APIC_ID, val);
-		break;
-
-	case APIC_TASKPRI:
-		apic_set_tpr(apic, val & 0xff);
-		break;
-
-	case APIC_EOI:
-		apic_set_eoi(apic);
-		break;
-
-	case APIC_LDR:
-		apic_set_reg(apic, APIC_LDR, val & APIC_LDR_MASK);
-		break;
-
-	case APIC_DFR:
-		apic_set_reg(apic, APIC_DFR, val | 0x0FFFFFFF);
-		break;
-
-	case APIC_SPIV:
-		apic_set_reg(apic, APIC_SPIV, val & 0x3ff);
-		if (!(val & APIC_SPIV_APIC_ENABLED)) {
-			int i;
-			u32 lvt_val;
-
-			for (i = 0; i < APIC_LVT_NUM; i++) {
-				lvt_val = apic_get_reg(apic,
-						       APIC_LVTT + 0x10 * i);
-				apic_set_reg(apic, APIC_LVTT + 0x10 * i,
-					     lvt_val | APIC_LVT_MASKED);
-			}
-			atomic_set(&apic->timer.pending, 0);
-
-		}
-		break;
-
-	case APIC_ICR:
-		/* No delay here, so we always clear the pending bit */
-		apic_set_reg(apic, APIC_ICR, val & ~(1 << 12));
-		apic_send_ipi(apic);
-		break;
-
-	case APIC_ICR2:
-		apic_set_reg(apic, APIC_ICR2, val & 0xff000000);
-		break;
-
-	case APIC_LVTT:
-	case APIC_LVTTHMR:
-	case APIC_LVTPC:
-	case APIC_LVT0:
-	case APIC_LVT1:
-	case APIC_LVTERR:
-		/* TODO: Check vector */
-		if (!apic_sw_enabled(apic))
-			val |= APIC_LVT_MASKED;
-
-		val &= apic_lvt_mask[(offset - APIC_LVTT) >> 4];
-		apic_set_reg(apic, offset, val);
-
-		break;
-
-	case APIC_TMICT:
-		hrtimer_cancel(&apic->timer.dev);
-		apic_set_reg(apic, APIC_TMICT, val);
-		start_apic_timer(apic);
-		return;
-
-	case APIC_TDCR:
-		if (val & 4)
-			printk(KERN_ERR "KVM_WRITE:TDCR %x\n", val);
-		apic_set_reg(apic, APIC_TDCR, val);
-		update_divide_count(apic);
-		break;
-
-	default:
-		apic_debug("Local APIC Write to read-only register %x\n",
-			   offset);
-		break;
-	}
-
-}
-
-static int apic_mmio_range(struct kvm_io_device *this, gpa_t addr)
-{
-	struct kvm_lapic *apic = (struct kvm_lapic *)this->private;
-	int ret = 0;
-
-
-	if (apic_hw_enabled(apic) &&
-	    (addr >= apic->base_address) &&
-	    (addr < (apic->base_address + LAPIC_MMIO_LENGTH)))
-		ret = 1;
-
-	return ret;
-}
-
-void kvm_free_lapic(struct kvm_vcpu *vcpu)
-{
-	if (!vcpu->arch.apic)
-		return;
-
-	hrtimer_cancel(&vcpu->arch.apic->timer.dev);
-
-	if (vcpu->arch.apic->regs_page)
-		__free_page(vcpu->arch.apic->regs_page);
-
-	kfree(vcpu->arch.apic);
-}
-
-/*
- *----------------------------------------------------------------------
- * LAPIC interface
- *----------------------------------------------------------------------
- */
-
-void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8)
-{
-	struct kvm_lapic *apic = vcpu->arch.apic;
-
-	if (!apic)
-		return;
-	apic_set_tpr(apic, ((cr8 & 0x0f) << 4));
-}
-
-u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu)
-{
-	struct kvm_lapic *apic = vcpu->arch.apic;
-	u64 tpr;
-
-	if (!apic)
-		return 0;
-	tpr = (u64) apic_get_reg(apic, APIC_TASKPRI);
-
-	return (tpr & 0xf0) >> 4;
-}
-EXPORT_SYMBOL_GPL(kvm_lapic_get_cr8);
-
-void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value)
-{
-	struct kvm_lapic *apic = vcpu->arch.apic;
-
-	if (!apic) {
-		value |= MSR_IA32_APICBASE_BSP;
-		vcpu->arch.apic_base = value;
-		return;
-	}
-	if (apic->vcpu->vcpu_id)
-		value &= ~MSR_IA32_APICBASE_BSP;
-
-	vcpu->arch.apic_base = value;
-	apic->base_address = apic->vcpu->arch.apic_base &
-			     MSR_IA32_APICBASE_BASE;
-
-	/* with FSB delivery interrupt, we can restart APIC functionality */
-	apic_debug("apic base msr is 0x%016" PRIx64 ", and base address is "
-		   "0x%lx.\n", apic->vcpu->arch.apic_base, apic->base_address);
-
-}
-
-u64 kvm_lapic_get_base(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.apic_base;
-}
-EXPORT_SYMBOL_GPL(kvm_lapic_get_base);
-
-void kvm_lapic_reset(struct kvm_vcpu *vcpu)
-{
-	struct kvm_lapic *apic;
-	int i;
-
-	apic_debug("%s\n", __FUNCTION__);
-
-	ASSERT(vcpu);
-	apic = vcpu->arch.apic;
-	ASSERT(apic != NULL);
-
-	/* Stop the timer in case it's a reset to an active apic */
-	hrtimer_cancel(&apic->timer.dev);
-
-	apic_set_reg(apic, APIC_ID, vcpu->vcpu_id << 24);
-	apic_set_reg(apic, APIC_LVR, APIC_VERSION);
-
-	for (i = 0; i < APIC_LVT_NUM; i++)
-		apic_set_reg(apic, APIC_LVTT + 0x10 * i, APIC_LVT_MASKED);
-	apic_set_reg(apic, APIC_LVT0,
-		     SET_APIC_DELIVERY_MODE(0, APIC_MODE_EXTINT));
-
-	apic_set_reg(apic, APIC_DFR, 0xffffffffU);
-	apic_set_reg(apic, APIC_SPIV, 0xff);
-	apic_set_reg(apic, APIC_TASKPRI, 0);
-	apic_set_reg(apic, APIC_LDR, 0);
-	apic_set_reg(apic, APIC_ESR, 0);
-	apic_set_reg(apic, APIC_ICR, 0);
-	apic_set_reg(apic, APIC_ICR2, 0);
-	apic_set_reg(apic, APIC_TDCR, 0);
-	apic_set_reg(apic, APIC_TMICT, 0);
-	for (i = 0; i < 8; i++) {
-		apic_set_reg(apic, APIC_IRR + 0x10 * i, 0);
-		apic_set_reg(apic, APIC_ISR + 0x10 * i, 0);
-		apic_set_reg(apic, APIC_TMR + 0x10 * i, 0);
-	}
-	update_divide_count(apic);
-	atomic_set(&apic->timer.pending, 0);
-	if (vcpu->vcpu_id == 0)
-		vcpu->arch.apic_base |= MSR_IA32_APICBASE_BSP;
-	apic_update_ppr(apic);
-
-	apic_debug(KERN_INFO "%s: vcpu=%p, id=%d, base_msr="
-		   "0x%016" PRIx64 ", base_address=0x%0lx.\n", __FUNCTION__,
-		   vcpu, kvm_apic_id(apic),
-		   vcpu->arch.apic_base, apic->base_address);
-}
-EXPORT_SYMBOL_GPL(kvm_lapic_reset);
-
-int kvm_lapic_enabled(struct kvm_vcpu *vcpu)
-{
-	struct kvm_lapic *apic = vcpu->arch.apic;
-	int ret = 0;
-
-	if (!apic)
-		return 0;
-	ret = apic_enabled(apic);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(kvm_lapic_enabled);
-
-/*
- *----------------------------------------------------------------------
- * timer interface
- *----------------------------------------------------------------------
- */
-
-/* TODO: make sure __apic_timer_fn runs in current pCPU */
-static int __apic_timer_fn(struct kvm_lapic *apic)
-{
-	int result = 0;
-	wait_queue_head_t *q = &apic->vcpu->wq;
-
-	atomic_inc(&apic->timer.pending);
-	if (waitqueue_active(q)) {
-		apic->vcpu->arch.mp_state = VCPU_MP_STATE_RUNNABLE;
-		wake_up_interruptible(q);
-	}
-	if (apic_lvtt_period(apic)) {
-		result = 1;
-		apic->timer.dev.expires = ktime_add_ns(
-					apic->timer.dev.expires,
-					apic->timer.period);
-	}
-	return result;
-}
-
-static int __inject_apic_timer_irq(struct kvm_lapic *apic)
-{
-	int vector;
-
-	vector = apic_lvt_vector(apic, APIC_LVTT);
-	return __apic_accept_irq(apic, APIC_DM_FIXED, vector, 1, 0);
-}
-
-static enum hrtimer_restart apic_timer_fn(struct hrtimer *data)
-{
-	struct kvm_lapic *apic;
-	int restart_timer = 0;
-
-	apic = container_of(data, struct kvm_lapic, timer.dev);
-
-	restart_timer = __apic_timer_fn(apic);
-
-	if (restart_timer)
-		return HRTIMER_RESTART;
-	else
-		return HRTIMER_NORESTART;
-}
-
-int kvm_create_lapic(struct kvm_vcpu *vcpu)
-{
-	struct kvm_lapic *apic;
-
-	ASSERT(vcpu != NULL);
-	apic_debug("apic_init %d\n", vcpu->vcpu_id);
-
-	apic = kzalloc(sizeof(*apic), GFP_KERNEL);
-	if (!apic)
-		goto nomem;
-
-	vcpu->arch.apic = apic;
-
-	apic->regs_page = alloc_page(GFP_KERNEL);
-	if (apic->regs_page == NULL) {
-		printk(KERN_ERR "malloc apic regs error for vcpu %x\n",
-		       vcpu->vcpu_id);
-		goto nomem_free_apic;
-	}
-	apic->regs = page_address(apic->regs_page);
-	memset(apic->regs, 0, PAGE_SIZE);
-	apic->vcpu = vcpu;
-
-	hrtimer_init(&apic->timer.dev, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	apic->timer.dev.function = apic_timer_fn;
-	apic->base_address = APIC_DEFAULT_PHYS_BASE;
-	vcpu->arch.apic_base = APIC_DEFAULT_PHYS_BASE;
-
-	kvm_lapic_reset(vcpu);
-	apic->dev.read = apic_mmio_read;
-	apic->dev.write = apic_mmio_write;
-	apic->dev.in_range = apic_mmio_range;
-	apic->dev.private = apic;
-
-	return 0;
-nomem_free_apic:
-	kfree(apic);
-nomem:
-	return -ENOMEM;
-}
-EXPORT_SYMBOL_GPL(kvm_create_lapic);
-
-int kvm_apic_has_interrupt(struct kvm_vcpu *vcpu)
-{
-	struct kvm_lapic *apic = vcpu->arch.apic;
-	int highest_irr;
-
-	if (!apic || !apic_enabled(apic))
-		return -1;
-
-	apic_update_ppr(apic);
-	highest_irr = apic_find_highest_irr(apic);
-	if ((highest_irr == -1) ||
-	    ((highest_irr & 0xF0) <= apic_get_reg(apic, APIC_PROCPRI)))
-		return -1;
-	return highest_irr;
-}
-
-int kvm_apic_accept_pic_intr(struct kvm_vcpu *vcpu)
-{
-	u32 lvt0 = apic_get_reg(vcpu->arch.apic, APIC_LVT0);
-	int r = 0;
-
-	if (vcpu->vcpu_id == 0) {
-		if (!apic_hw_enabled(vcpu->arch.apic))
-			r = 1;
-		if ((lvt0 & APIC_LVT_MASKED) == 0 &&
-		    GET_APIC_DELIVERY_MODE(lvt0) == APIC_MODE_EXTINT)
-			r = 1;
-	}
-	return r;
-}
-
-void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu)
-{
-	struct kvm_lapic *apic = vcpu->arch.apic;
-
-	if (apic && apic_lvt_enabled(apic, APIC_LVTT) &&
-		atomic_read(&apic->timer.pending) > 0) {
-		if (__inject_apic_timer_irq(apic))
-			atomic_dec(&apic->timer.pending);
-	}
-}
-
-void kvm_apic_timer_intr_post(struct kvm_vcpu *vcpu, int vec)
-{
-	struct kvm_lapic *apic = vcpu->arch.apic;
-
-	if (apic && apic_lvt_vector(apic, APIC_LVTT) == vec)
-		apic->timer.last_update = ktime_add_ns(
-				apic->timer.last_update,
-				apic->timer.period);
-}
-
-int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu)
-{
-	int vector = kvm_apic_has_interrupt(vcpu);
-	struct kvm_lapic *apic = vcpu->arch.apic;
-
-	if (vector == -1)
-		return -1;
-
-	apic_set_vector(vector, apic->regs + APIC_ISR);
-	apic_update_ppr(apic);
-	apic_clear_irr(vector, apic);
-	return vector;
-}
-
-void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu)
-{
-	struct kvm_lapic *apic = vcpu->arch.apic;
-
-	apic->base_address = vcpu->arch.apic_base &
-			     MSR_IA32_APICBASE_BASE;
-	apic_set_reg(apic, APIC_LVR, APIC_VERSION);
-	apic_update_ppr(apic);
-	hrtimer_cancel(&apic->timer.dev);
-	update_divide_count(apic);
-	start_apic_timer(apic);
-}
-
-void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu)
-{
-	struct kvm_lapic *apic = vcpu->arch.apic;
-	struct hrtimer *timer;
-
-	if (!apic)
-		return;
-
-	timer = &apic->timer.dev;
-	if (hrtimer_cancel(timer))
-		hrtimer_start(timer, timer->expires, HRTIMER_MODE_ABS);
-}
-EXPORT_SYMBOL_GPL(kvm_migrate_apic_timer);
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
deleted file mode 100644
index c26d83f86a3a..000000000000
--- a/drivers/kvm/mmu.c
+++ /dev/null
@@ -1,1806 +0,0 @@
-/*
- * Kernel-based Virtual Machine driver for Linux
- *
- * This module enables machines with Intel VT-x extensions to run virtual
- * machines without emulation or binary translation.
- *
- * MMU support
- *
- * Copyright (C) 2006 Qumranet, Inc.
- *
- * Authors:
- *   Yaniv Kamay  <yaniv@qumranet.com>
- *   Avi Kivity   <avi@qumranet.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- *
- */
-
-#include "vmx.h"
-#include "kvm.h"
-#include "x86.h"
-#include "mmu.h"
-
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/highmem.h>
-#include <linux/module.h>
-#include <linux/swap.h>
-
-#include <asm/page.h>
-#include <asm/cmpxchg.h>
-#include <asm/io.h>
-
-#undef MMU_DEBUG
-
-#undef AUDIT
-
-#ifdef AUDIT
-static void kvm_mmu_audit(struct kvm_vcpu *vcpu, const char *msg);
-#else
-static void kvm_mmu_audit(struct kvm_vcpu *vcpu, const char *msg) {}
-#endif
-
-#ifdef MMU_DEBUG
-
-#define pgprintk(x...) do { if (dbg) printk(x); } while (0)
-#define rmap_printk(x...) do { if (dbg) printk(x); } while (0)
-
-#else
-
-#define pgprintk(x...) do { } while (0)
-#define rmap_printk(x...) do { } while (0)
-
-#endif
-
-#if defined(MMU_DEBUG) || defined(AUDIT)
-static int dbg = 1;
-#endif
-
-#ifndef MMU_DEBUG
-#define ASSERT(x) do { } while (0)
-#else
-#define ASSERT(x)							\
-	if (!(x)) {							\
-		printk(KERN_WARNING "assertion failed %s:%d: %s\n",	\
-		       __FILE__, __LINE__, #x);				\
-	}
-#endif
-
-#define PT64_PT_BITS 9
-#define PT64_ENT_PER_PAGE (1 << PT64_PT_BITS)
-#define PT32_PT_BITS 10
-#define PT32_ENT_PER_PAGE (1 << PT32_PT_BITS)
-
-#define PT_WRITABLE_SHIFT 1
-
-#define PT_PRESENT_MASK (1ULL << 0)
-#define PT_WRITABLE_MASK (1ULL << PT_WRITABLE_SHIFT)
-#define PT_USER_MASK (1ULL << 2)
-#define PT_PWT_MASK (1ULL << 3)
-#define PT_PCD_MASK (1ULL << 4)
-#define PT_ACCESSED_MASK (1ULL << 5)
-#define PT_DIRTY_MASK (1ULL << 6)
-#define PT_PAGE_SIZE_MASK (1ULL << 7)
-#define PT_PAT_MASK (1ULL << 7)
-#define PT_GLOBAL_MASK (1ULL << 8)
-#define PT64_NX_SHIFT 63
-#define PT64_NX_MASK (1ULL << PT64_NX_SHIFT)
-
-#define PT_PAT_SHIFT 7
-#define PT_DIR_PAT_SHIFT 12
-#define PT_DIR_PAT_MASK (1ULL << PT_DIR_PAT_SHIFT)
-
-#define PT32_DIR_PSE36_SIZE 4
-#define PT32_DIR_PSE36_SHIFT 13
-#define PT32_DIR_PSE36_MASK \
-	(((1ULL << PT32_DIR_PSE36_SIZE) - 1) << PT32_DIR_PSE36_SHIFT)
-
-
-#define PT_FIRST_AVAIL_BITS_SHIFT 9
-#define PT64_SECOND_AVAIL_BITS_SHIFT 52
-
-#define PT_SHADOW_IO_MARK (1ULL << PT_FIRST_AVAIL_BITS_SHIFT)
-
-#define VALID_PAGE(x) ((x) != INVALID_PAGE)
-
-#define PT64_LEVEL_BITS 9
-
-#define PT64_LEVEL_SHIFT(level) \
-		(PAGE_SHIFT + (level - 1) * PT64_LEVEL_BITS)
-
-#define PT64_LEVEL_MASK(level) \
-		(((1ULL << PT64_LEVEL_BITS) - 1) << PT64_LEVEL_SHIFT(level))
-
-#define PT64_INDEX(address, level)\
-	(((address) >> PT64_LEVEL_SHIFT(level)) & ((1 << PT64_LEVEL_BITS) - 1))
-
-
-#define PT32_LEVEL_BITS 10
-
-#define PT32_LEVEL_SHIFT(level) \
-		(PAGE_SHIFT + (level - 1) * PT32_LEVEL_BITS)
-
-#define PT32_LEVEL_MASK(level) \
-		(((1ULL << PT32_LEVEL_BITS) - 1) << PT32_LEVEL_SHIFT(level))
-
-#define PT32_INDEX(address, level)\
-	(((address) >> PT32_LEVEL_SHIFT(level)) & ((1 << PT32_LEVEL_BITS) - 1))
-
-
-#define PT64_BASE_ADDR_MASK (((1ULL << 52) - 1) & ~(u64)(PAGE_SIZE-1))
-#define PT64_DIR_BASE_ADDR_MASK \
-	(PT64_BASE_ADDR_MASK & ~((1ULL << (PAGE_SHIFT + PT64_LEVEL_BITS)) - 1))
-
-#define PT32_BASE_ADDR_MASK PAGE_MASK
-#define PT32_DIR_BASE_ADDR_MASK \
-	(PAGE_MASK & ~((1ULL << (PAGE_SHIFT + PT32_LEVEL_BITS)) - 1))
-
-#define PT64_PERM_MASK (PT_PRESENT_MASK | PT_WRITABLE_MASK | PT_USER_MASK \
-			| PT64_NX_MASK)
-
-#define PFERR_PRESENT_MASK (1U << 0)
-#define PFERR_WRITE_MASK (1U << 1)
-#define PFERR_USER_MASK (1U << 2)
-#define PFERR_FETCH_MASK (1U << 4)
-
-#define PT64_ROOT_LEVEL 4
-#define PT32_ROOT_LEVEL 2
-#define PT32E_ROOT_LEVEL 3
-
-#define PT_DIRECTORY_LEVEL 2
-#define PT_PAGE_TABLE_LEVEL 1
-
-#define RMAP_EXT 4
-
-#define ACC_EXEC_MASK    1
-#define ACC_WRITE_MASK   PT_WRITABLE_MASK
-#define ACC_USER_MASK    PT_USER_MASK
-#define ACC_ALL          (ACC_EXEC_MASK | ACC_WRITE_MASK | ACC_USER_MASK)
-
-struct kvm_rmap_desc {
-	u64 *shadow_ptes[RMAP_EXT];
-	struct kvm_rmap_desc *more;
-};
-
-static struct kmem_cache *pte_chain_cache;
-static struct kmem_cache *rmap_desc_cache;
-static struct kmem_cache *mmu_page_header_cache;
-
-static u64 __read_mostly shadow_trap_nonpresent_pte;
-static u64 __read_mostly shadow_notrap_nonpresent_pte;
-
-void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte)
-{
-	shadow_trap_nonpresent_pte = trap_pte;
-	shadow_notrap_nonpresent_pte = notrap_pte;
-}
-EXPORT_SYMBOL_GPL(kvm_mmu_set_nonpresent_ptes);
-
-static int is_write_protection(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.cr0 & X86_CR0_WP;
-}
-
-static int is_cpuid_PSE36(void)
-{
-	return 1;
-}
-
-static int is_nx(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.shadow_efer & EFER_NX;
-}
-
-static int is_present_pte(unsigned long pte)
-{
-	return pte & PT_PRESENT_MASK;
-}
-
-static int is_shadow_present_pte(u64 pte)
-{
-	pte &= ~PT_SHADOW_IO_MARK;
-	return pte != shadow_trap_nonpresent_pte
-		&& pte != shadow_notrap_nonpresent_pte;
-}
-
-static int is_writeble_pte(unsigned long pte)
-{
-	return pte & PT_WRITABLE_MASK;
-}
-
-static int is_dirty_pte(unsigned long pte)
-{
-	return pte & PT_DIRTY_MASK;
-}
-
-static int is_io_pte(unsigned long pte)
-{
-	return pte & PT_SHADOW_IO_MARK;
-}
-
-static int is_rmap_pte(u64 pte)
-{
-	return pte != shadow_trap_nonpresent_pte
-		&& pte != shadow_notrap_nonpresent_pte;
-}
-
-static gfn_t pse36_gfn_delta(u32 gpte)
-{
-	int shift = 32 - PT32_DIR_PSE36_SHIFT - PAGE_SHIFT;
-
-	return (gpte & PT32_DIR_PSE36_MASK) << shift;
-}
-
-static void set_shadow_pte(u64 *sptep, u64 spte)
-{
-#ifdef CONFIG_X86_64
-	set_64bit((unsigned long *)sptep, spte);
-#else
-	set_64bit((unsigned long long *)sptep, spte);
-#endif
-}
-
-static int mmu_topup_memory_cache(struct kvm_mmu_memory_cache *cache,
-				  struct kmem_cache *base_cache, int min)
-{
-	void *obj;
-
-	if (cache->nobjs >= min)
-		return 0;
-	while (cache->nobjs < ARRAY_SIZE(cache->objects)) {
-		obj = kmem_cache_zalloc(base_cache, GFP_KERNEL);
-		if (!obj)
-			return -ENOMEM;
-		cache->objects[cache->nobjs++] = obj;
-	}
-	return 0;
-}
-
-static void mmu_free_memory_cache(struct kvm_mmu_memory_cache *mc)
-{
-	while (mc->nobjs)
-		kfree(mc->objects[--mc->nobjs]);
-}
-
-static int mmu_topup_memory_cache_page(struct kvm_mmu_memory_cache *cache,
-				       int min)
-{
-	struct page *page;
-
-	if (cache->nobjs >= min)
-		return 0;
-	while (cache->nobjs < ARRAY_SIZE(cache->objects)) {
-		page = alloc_page(GFP_KERNEL);
-		if (!page)
-			return -ENOMEM;
-		set_page_private(page, 0);
-		cache->objects[cache->nobjs++] = page_address(page);
-	}
-	return 0;
-}
-
-static void mmu_free_memory_cache_page(struct kvm_mmu_memory_cache *mc)
-{
-	while (mc->nobjs)
-		free_page((unsigned long)mc->objects[--mc->nobjs]);
-}
-
-static int mmu_topup_memory_caches(struct kvm_vcpu *vcpu)
-{
-	int r;
-
-	kvm_mmu_free_some_pages(vcpu);
-	r = mmu_topup_memory_cache(&vcpu->arch.mmu_pte_chain_cache,
-				   pte_chain_cache, 4);
-	if (r)
-		goto out;
-	r = mmu_topup_memory_cache(&vcpu->arch.mmu_rmap_desc_cache,
-				   rmap_desc_cache, 1);
-	if (r)
-		goto out;
-	r = mmu_topup_memory_cache_page(&vcpu->arch.mmu_page_cache, 8);
-	if (r)
-		goto out;
-	r = mmu_topup_memory_cache(&vcpu->arch.mmu_page_header_cache,
-				   mmu_page_header_cache, 4);
-out:
-	return r;
-}
-
-static void mmu_free_memory_caches(struct kvm_vcpu *vcpu)
-{
-	mmu_free_memory_cache(&vcpu->arch.mmu_pte_chain_cache);
-	mmu_free_memory_cache(&vcpu->arch.mmu_rmap_desc_cache);
-	mmu_free_memory_cache_page(&vcpu->arch.mmu_page_cache);
-	mmu_free_memory_cache(&vcpu->arch.mmu_page_header_cache);
-}
-
-static void *mmu_memory_cache_alloc(struct kvm_mmu_memory_cache *mc,
-				    size_t size)
-{
-	void *p;
-
-	BUG_ON(!mc->nobjs);
-	p = mc->objects[--mc->nobjs];
-	memset(p, 0, size);
-	return p;
-}
-
-static struct kvm_pte_chain *mmu_alloc_pte_chain(struct kvm_vcpu *vcpu)
-{
-	return mmu_memory_cache_alloc(&vcpu->arch.mmu_pte_chain_cache,
-				      sizeof(struct kvm_pte_chain));
-}
-
-static void mmu_free_pte_chain(struct kvm_pte_chain *pc)
-{
-	kfree(pc);
-}
-
-static struct kvm_rmap_desc *mmu_alloc_rmap_desc(struct kvm_vcpu *vcpu)
-{
-	return mmu_memory_cache_alloc(&vcpu->arch.mmu_rmap_desc_cache,
-				      sizeof(struct kvm_rmap_desc));
-}
-
-static void mmu_free_rmap_desc(struct kvm_rmap_desc *rd)
-{
-	kfree(rd);
-}
-
-/*
- * Take gfn and return the reverse mapping to it.
- * Note: gfn must be unaliased before this function get called
- */
-
-static unsigned long *gfn_to_rmap(struct kvm *kvm, gfn_t gfn)
-{
-	struct kvm_memory_slot *slot;
-
-	slot = gfn_to_memslot(kvm, gfn);
-	return &slot->rmap[gfn - slot->base_gfn];
-}
-
-/*
- * Reverse mapping data structures:
- *
- * If rmapp bit zero is zero, then rmapp point to the shadw page table entry
- * that points to page_address(page).
- *
- * If rmapp bit zero is one, (then rmap & ~1) points to a struct kvm_rmap_desc
- * containing more mappings.
- */
-static void rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn)
-{
-	struct kvm_mmu_page *sp;
-	struct kvm_rmap_desc *desc;
-	unsigned long *rmapp;
-	int i;
-
-	if (!is_rmap_pte(*spte))
-		return;
-	gfn = unalias_gfn(vcpu->kvm, gfn);
-	sp = page_header(__pa(spte));
-	sp->gfns[spte - sp->spt] = gfn;
-	rmapp = gfn_to_rmap(vcpu->kvm, gfn);
-	if (!*rmapp) {
-		rmap_printk("rmap_add: %p %llx 0->1\n", spte, *spte);
-		*rmapp = (unsigned long)spte;
-	} else if (!(*rmapp & 1)) {
-		rmap_printk("rmap_add: %p %llx 1->many\n", spte, *spte);
-		desc = mmu_alloc_rmap_desc(vcpu);
-		desc->shadow_ptes[0] = (u64 *)*rmapp;
-		desc->shadow_ptes[1] = spte;
-		*rmapp = (unsigned long)desc | 1;
-	} else {
-		rmap_printk("rmap_add: %p %llx many->many\n", spte, *spte);
-		desc = (struct kvm_rmap_desc *)(*rmapp & ~1ul);
-		while (desc->shadow_ptes[RMAP_EXT-1] && desc->more)
-			desc = desc->more;
-		if (desc->shadow_ptes[RMAP_EXT-1]) {
-			desc->more = mmu_alloc_rmap_desc(vcpu);
-			desc = desc->more;
-		}
-		for (i = 0; desc->shadow_ptes[i]; ++i)
-			;
-		desc->shadow_ptes[i] = spte;
-	}
-}
-
-static void rmap_desc_remove_entry(unsigned long *rmapp,
-				   struct kvm_rmap_desc *desc,
-				   int i,
-				   struct kvm_rmap_desc *prev_desc)
-{
-	int j;
-
-	for (j = RMAP_EXT - 1; !desc->shadow_ptes[j] && j > i; --j)
-		;
-	desc->shadow_ptes[i] = desc->shadow_ptes[j];
-	desc->shadow_ptes[j] = NULL;
-	if (j != 0)
-		return;
-	if (!prev_desc && !desc->more)
-		*rmapp = (unsigned long)desc->shadow_ptes[0];
-	else
-		if (prev_desc)
-			prev_desc->more = desc->more;
-		else
-			*rmapp = (unsigned long)desc->more | 1;
-	mmu_free_rmap_desc(desc);
-}
-
-static void rmap_remove(struct kvm *kvm, u64 *spte)
-{
-	struct kvm_rmap_desc *desc;
-	struct kvm_rmap_desc *prev_desc;
-	struct kvm_mmu_page *sp;
-	struct page *page;
-	unsigned long *rmapp;
-	int i;
-
-	if (!is_rmap_pte(*spte))
-		return;
-	sp = page_header(__pa(spte));
-	page = pfn_to_page((*spte & PT64_BASE_ADDR_MASK) >> PAGE_SHIFT);
-	mark_page_accessed(page);
-	if (is_writeble_pte(*spte))
-		kvm_release_page_dirty(page);
-	else
-		kvm_release_page_clean(page);
-	rmapp = gfn_to_rmap(kvm, sp->gfns[spte - sp->spt]);
-	if (!*rmapp) {
-		printk(KERN_ERR "rmap_remove: %p %llx 0->BUG\n", spte, *spte);
-		BUG();
-	} else if (!(*rmapp & 1)) {
-		rmap_printk("rmap_remove:  %p %llx 1->0\n", spte, *spte);
-		if ((u64 *)*rmapp != spte) {
-			printk(KERN_ERR "rmap_remove:  %p %llx 1->BUG\n",
-			       spte, *spte);
-			BUG();
-		}
-		*rmapp = 0;
-	} else {
-		rmap_printk("rmap_remove:  %p %llx many->many\n", spte, *spte);
-		desc = (struct kvm_rmap_desc *)(*rmapp & ~1ul);
-		prev_desc = NULL;
-		while (desc) {
-			for (i = 0; i < RMAP_EXT && desc->shadow_ptes[i]; ++i)
-				if (desc->shadow_ptes[i] == spte) {
-					rmap_desc_remove_entry(rmapp,
-							       desc, i,
-							       prev_desc);
-					return;
-				}
-			prev_desc = desc;
-			desc = desc->more;
-		}
-		BUG();
-	}
-}
-
-static u64 *rmap_next(struct kvm *kvm, unsigned long *rmapp, u64 *spte)
-{
-	struct kvm_rmap_desc *desc;
-	struct kvm_rmap_desc *prev_desc;
-	u64 *prev_spte;
-	int i;
-
-	if (!*rmapp)
-		return NULL;
-	else if (!(*rmapp & 1)) {
-		if (!spte)
-			return (u64 *)*rmapp;
-		return NULL;
-	}
-	desc = (struct kvm_rmap_desc *)(*rmapp & ~1ul);
-	prev_desc = NULL;
-	prev_spte = NULL;
-	while (desc) {
-		for (i = 0; i < RMAP_EXT && desc->shadow_ptes[i]; ++i) {
-			if (prev_spte == spte)
-				return desc->shadow_ptes[i];
-			prev_spte = desc->shadow_ptes[i];
-		}
-		desc = desc->more;
-	}
-	return NULL;
-}
-
-static void rmap_write_protect(struct kvm *kvm, u64 gfn)
-{
-	unsigned long *rmapp;
-	u64 *spte;
-
-	gfn = unalias_gfn(kvm, gfn);
-	rmapp = gfn_to_rmap(kvm, gfn);
-
-	spte = rmap_next(kvm, rmapp, NULL);
-	while (spte) {
-		BUG_ON(!spte);
-		BUG_ON(!(*spte & PT_PRESENT_MASK));
-		rmap_printk("rmap_write_protect: spte %p %llx\n", spte, *spte);
-		if (is_writeble_pte(*spte))
-			set_shadow_pte(spte, *spte & ~PT_WRITABLE_MASK);
-		kvm_flush_remote_tlbs(kvm);
-		spte = rmap_next(kvm, rmapp, spte);
-	}
-}
-
-#ifdef MMU_DEBUG
-static int is_empty_shadow_page(u64 *spt)
-{
-	u64 *pos;
-	u64 *end;
-
-	for (pos = spt, end = pos + PAGE_SIZE / sizeof(u64); pos != end; pos++)
-		if ((*pos & ~PT_SHADOW_IO_MARK) != shadow_trap_nonpresent_pte) {
-			printk(KERN_ERR "%s: %p %llx\n", __FUNCTION__,
-			       pos, *pos);
-			return 0;
-		}
-	return 1;
-}
-#endif
-
-static void kvm_mmu_free_page(struct kvm *kvm, struct kvm_mmu_page *sp)
-{
-	ASSERT(is_empty_shadow_page(sp->spt));
-	list_del(&sp->link);
-	__free_page(virt_to_page(sp->spt));
-	__free_page(virt_to_page(sp->gfns));
-	kfree(sp);
-	++kvm->arch.n_free_mmu_pages;
-}
-
-static unsigned kvm_page_table_hashfn(gfn_t gfn)
-{
-	return gfn;
-}
-
-static struct kvm_mmu_page *kvm_mmu_alloc_page(struct kvm_vcpu *vcpu,
-					       u64 *parent_pte)
-{
-	struct kvm_mmu_page *sp;
-
-	if (!vcpu->kvm->arch.n_free_mmu_pages)
-		return NULL;
-
-	sp = mmu_memory_cache_alloc(&vcpu->arch.mmu_page_header_cache, sizeof *sp);
-	sp->spt = mmu_memory_cache_alloc(&vcpu->arch.mmu_page_cache, PAGE_SIZE);
-	sp->gfns = mmu_memory_cache_alloc(&vcpu->arch.mmu_page_cache, PAGE_SIZE);
-	set_page_private(virt_to_page(sp->spt), (unsigned long)sp);
-	list_add(&sp->link, &vcpu->kvm->arch.active_mmu_pages);
-	ASSERT(is_empty_shadow_page(sp->spt));
-	sp->slot_bitmap = 0;
-	sp->multimapped = 0;
-	sp->parent_pte = parent_pte;
-	--vcpu->kvm->arch.n_free_mmu_pages;
-	return sp;
-}
-
-static void mmu_page_add_parent_pte(struct kvm_vcpu *vcpu,
-				    struct kvm_mmu_page *sp, u64 *parent_pte)
-{
-	struct kvm_pte_chain *pte_chain;
-	struct hlist_node *node;
-	int i;
-
-	if (!parent_pte)
-		return;
-	if (!sp->multimapped) {
-		u64 *old = sp->parent_pte;
-
-		if (!old) {
-			sp->parent_pte = parent_pte;
-			return;
-		}
-		sp->multimapped = 1;
-		pte_chain = mmu_alloc_pte_chain(vcpu);
-		INIT_HLIST_HEAD(&sp->parent_ptes);
-		hlist_add_head(&pte_chain->link, &sp->parent_ptes);
-		pte_chain->parent_ptes[0] = old;
-	}
-	hlist_for_each_entry(pte_chain, node, &sp->parent_ptes, link) {
-		if (pte_chain->parent_ptes[NR_PTE_CHAIN_ENTRIES-1])
-			continue;
-		for (i = 0; i < NR_PTE_CHAIN_ENTRIES; ++i)
-			if (!pte_chain->parent_ptes[i]) {
-				pte_chain->parent_ptes[i] = parent_pte;
-				return;
-			}
-	}
-	pte_chain = mmu_alloc_pte_chain(vcpu);
-	BUG_ON(!pte_chain);
-	hlist_add_head(&pte_chain->link, &sp->parent_ptes);
-	pte_chain->parent_ptes[0] = parent_pte;
-}
-
-static void mmu_page_remove_parent_pte(struct kvm_mmu_page *sp,
-				       u64 *parent_pte)
-{
-	struct kvm_pte_chain *pte_chain;
-	struct hlist_node *node;
-	int i;
-
-	if (!sp->multimapped) {
-		BUG_ON(sp->parent_pte != parent_pte);
-		sp->parent_pte = NULL;
-		return;
-	}
-	hlist_for_each_entry(pte_chain, node, &sp->parent_ptes, link)
-		for (i = 0; i < NR_PTE_CHAIN_ENTRIES; ++i) {
-			if (!pte_chain->parent_ptes[i])
-				break;
-			if (pte_chain->parent_ptes[i] != parent_pte)
-				continue;
-			while (i + 1 < NR_PTE_CHAIN_ENTRIES
-				&& pte_chain->parent_ptes[i + 1]) {
-				pte_chain->parent_ptes[i]
-					= pte_chain->parent_ptes[i + 1];
-				++i;
-			}
-			pte_chain->parent_ptes[i] = NULL;
-			if (i == 0) {
-				hlist_del(&pte_chain->link);
-				mmu_free_pte_chain(pte_chain);
-				if (hlist_empty(&sp->parent_ptes)) {
-					sp->multimapped = 0;
-					sp->parent_pte = NULL;
-				}
-			}
-			return;
-		}
-	BUG();
-}
-
-static struct kvm_mmu_page *kvm_mmu_lookup_page(struct kvm *kvm, gfn_t gfn)
-{
-	unsigned index;
-	struct hlist_head *bucket;
-	struct kvm_mmu_page *sp;
-	struct hlist_node *node;
-
-	pgprintk("%s: looking for gfn %lx\n", __FUNCTION__, gfn);
-	index = kvm_page_table_hashfn(gfn) % KVM_NUM_MMU_PAGES;
-	bucket = &kvm->arch.mmu_page_hash[index];
-	hlist_for_each_entry(sp, node, bucket, hash_link)
-		if (sp->gfn == gfn && !sp->role.metaphysical) {
-			pgprintk("%s: found role %x\n",
-				 __FUNCTION__, sp->role.word);
-			return sp;
-		}
-	return NULL;
-}
-
-static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
-					     gfn_t gfn,
-					     gva_t gaddr,
-					     unsigned level,
-					     int metaphysical,
-					     unsigned access,
-					     u64 *parent_pte,
-					     bool *new_page)
-{
-	union kvm_mmu_page_role role;
-	unsigned index;
-	unsigned quadrant;
-	struct hlist_head *bucket;
-	struct kvm_mmu_page *sp;
-	struct hlist_node *node;
-
-	role.word = 0;
-	role.glevels = vcpu->arch.mmu.root_level;
-	role.level = level;
-	role.metaphysical = metaphysical;
-	role.access = access;
-	if (vcpu->arch.mmu.root_level <= PT32_ROOT_LEVEL) {
-		quadrant = gaddr >> (PAGE_SHIFT + (PT64_PT_BITS * level));
-		quadrant &= (1 << ((PT32_PT_BITS - PT64_PT_BITS) * level)) - 1;
-		role.quadrant = quadrant;
-	}
-	pgprintk("%s: looking gfn %lx role %x\n", __FUNCTION__,
-		 gfn, role.word);
-	index = kvm_page_table_hashfn(gfn) % KVM_NUM_MMU_PAGES;
-	bucket = &vcpu->kvm->arch.mmu_page_hash[index];
-	hlist_for_each_entry(sp, node, bucket, hash_link)
-		if (sp->gfn == gfn && sp->role.word == role.word) {
-			mmu_page_add_parent_pte(vcpu, sp, parent_pte);
-			pgprintk("%s: found\n", __FUNCTION__);
-			return sp;
-		}
-	sp = kvm_mmu_alloc_page(vcpu, parent_pte);
-	if (!sp)
-		return sp;
-	pgprintk("%s: adding gfn %lx role %x\n", __FUNCTION__, gfn, role.word);
-	sp->gfn = gfn;
-	sp->role = role;
-	hlist_add_head(&sp->hash_link, bucket);
-	vcpu->arch.mmu.prefetch_page(vcpu, sp);
-	if (!metaphysical)
-		rmap_write_protect(vcpu->kvm, gfn);
-	if (new_page)
-		*new_page = 1;
-	return sp;
-}
-
-static void kvm_mmu_page_unlink_children(struct kvm *kvm,
-					 struct kvm_mmu_page *sp)
-{
-	unsigned i;
-	u64 *pt;
-	u64 ent;
-
-	pt = sp->spt;
-
-	if (sp->role.level == PT_PAGE_TABLE_LEVEL) {
-		for (i = 0; i < PT64_ENT_PER_PAGE; ++i) {
-			if (is_shadow_present_pte(pt[i]))
-				rmap_remove(kvm, &pt[i]);
-			pt[i] = shadow_trap_nonpresent_pte;
-		}
-		kvm_flush_remote_tlbs(kvm);
-		return;
-	}
-
-	for (i = 0; i < PT64_ENT_PER_PAGE; ++i) {
-		ent = pt[i];
-
-		pt[i] = shadow_trap_nonpresent_pte;
-		if (!is_shadow_present_pte(ent))
-			continue;
-		ent &= PT64_BASE_ADDR_MASK;
-		mmu_page_remove_parent_pte(page_header(ent), &pt[i]);
-	}
-	kvm_flush_remote_tlbs(kvm);
-}
-
-static void kvm_mmu_put_page(struct kvm_mmu_page *sp, u64 *parent_pte)
-{
-	mmu_page_remove_parent_pte(sp, parent_pte);
-}
-
-static void kvm_mmu_reset_last_pte_updated(struct kvm *kvm)
-{
-	int i;
-
-	for (i = 0; i < KVM_MAX_VCPUS; ++i)
-		if (kvm->vcpus[i])
-			kvm->vcpus[i]->arch.last_pte_updated = NULL;
-}
-
-static void kvm_mmu_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp)
-{
-	u64 *parent_pte;
-
-	++kvm->stat.mmu_shadow_zapped;
-	while (sp->multimapped || sp->parent_pte) {
-		if (!sp->multimapped)
-			parent_pte = sp->parent_pte;
-		else {
-			struct kvm_pte_chain *chain;
-
-			chain = container_of(sp->parent_ptes.first,
-					     struct kvm_pte_chain, link);
-			parent_pte = chain->parent_ptes[0];
-		}
-		BUG_ON(!parent_pte);
-		kvm_mmu_put_page(sp, parent_pte);
-		set_shadow_pte(parent_pte, shadow_trap_nonpresent_pte);
-	}
-	kvm_mmu_page_unlink_children(kvm, sp);
-	if (!sp->root_count) {
-		hlist_del(&sp->hash_link);
-		kvm_mmu_free_page(kvm, sp);
-	} else
-		list_move(&sp->link, &kvm->arch.active_mmu_pages);
-	kvm_mmu_reset_last_pte_updated(kvm);
-}
-
-/*
- * Changing the number of mmu pages allocated to the vm
- * Note: if kvm_nr_mmu_pages is too small, you will get dead lock
- */
-void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages)
-{
-	/*
-	 * If we set the number of mmu pages to be smaller be than the
-	 * number of actived pages , we must to free some mmu pages before we
-	 * change the value
-	 */
-
-	if ((kvm->arch.n_alloc_mmu_pages - kvm->arch.n_free_mmu_pages) >
-	    kvm_nr_mmu_pages) {
-		int n_used_mmu_pages = kvm->arch.n_alloc_mmu_pages
-				       - kvm->arch.n_free_mmu_pages;
-
-		while (n_used_mmu_pages > kvm_nr_mmu_pages) {
-			struct kvm_mmu_page *page;
-
-			page = container_of(kvm->arch.active_mmu_pages.prev,
-					    struct kvm_mmu_page, link);
-			kvm_mmu_zap_page(kvm, page);
-			n_used_mmu_pages--;
-		}
-		kvm->arch.n_free_mmu_pages = 0;
-	}
-	else
-		kvm->arch.n_free_mmu_pages += kvm_nr_mmu_pages
-					 - kvm->arch.n_alloc_mmu_pages;
-
-	kvm->arch.n_alloc_mmu_pages = kvm_nr_mmu_pages;
-}
-
-static int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn)
-{
-	unsigned index;
-	struct hlist_head *bucket;
-	struct kvm_mmu_page *sp;
-	struct hlist_node *node, *n;
-	int r;
-
-	pgprintk("%s: looking for gfn %lx\n", __FUNCTION__, gfn);
-	r = 0;
-	index = kvm_page_table_hashfn(gfn) % KVM_NUM_MMU_PAGES;
-	bucket = &kvm->arch.mmu_page_hash[index];
-	hlist_for_each_entry_safe(sp, node, n, bucket, hash_link)
-		if (sp->gfn == gfn && !sp->role.metaphysical) {
-			pgprintk("%s: gfn %lx role %x\n", __FUNCTION__, gfn,
-				 sp->role.word);
-			kvm_mmu_zap_page(kvm, sp);
-			r = 1;
-		}
-	return r;
-}
-
-static void mmu_unshadow(struct kvm *kvm, gfn_t gfn)
-{
-	struct kvm_mmu_page *sp;
-
-	while ((sp = kvm_mmu_lookup_page(kvm, gfn)) != NULL) {
-		pgprintk("%s: zap %lx %x\n", __FUNCTION__, gfn, sp->role.word);
-		kvm_mmu_zap_page(kvm, sp);
-	}
-}
-
-static void page_header_update_slot(struct kvm *kvm, void *pte, gfn_t gfn)
-{
-	int slot = memslot_id(kvm, gfn_to_memslot(kvm, gfn));
-	struct kvm_mmu_page *sp = page_header(__pa(pte));
-
-	__set_bit(slot, &sp->slot_bitmap);
-}
-
-struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva)
-{
-	gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva);
-
-	if (gpa == UNMAPPED_GVA)
-		return NULL;
-	return gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
-}
-
-static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
-			 unsigned pt_access, unsigned pte_access,
-			 int user_fault, int write_fault, int dirty,
-			 int *ptwrite, gfn_t gfn)
-{
-	u64 spte;
-	int was_rmapped = is_rmap_pte(*shadow_pte);
-	struct page *page;
-
-	pgprintk("%s: spte %llx access %x write_fault %d"
-		 " user_fault %d gfn %lx\n",
-		 __FUNCTION__, *shadow_pte, pt_access,
-		 write_fault, user_fault, gfn);
-
-	/*
-	 * We don't set the accessed bit, since we sometimes want to see
-	 * whether the guest actually used the pte (in order to detect
-	 * demand paging).
-	 */
-	spte = PT_PRESENT_MASK | PT_DIRTY_MASK;
-	if (!dirty)
-		pte_access &= ~ACC_WRITE_MASK;
-	if (!(pte_access & ACC_EXEC_MASK))
-		spte |= PT64_NX_MASK;
-
-	page = gfn_to_page(vcpu->kvm, gfn);
-
-	spte |= PT_PRESENT_MASK;
-	if (pte_access & ACC_USER_MASK)
-		spte |= PT_USER_MASK;
-
-	if (is_error_page(page)) {
-		set_shadow_pte(shadow_pte,
-			       shadow_trap_nonpresent_pte | PT_SHADOW_IO_MARK);
-		kvm_release_page_clean(page);
-		return;
-	}
-
-	spte |= page_to_phys(page);
-
-	if ((pte_access & ACC_WRITE_MASK)
-	    || (write_fault && !is_write_protection(vcpu) && !user_fault)) {
-		struct kvm_mmu_page *shadow;
-
-		spte |= PT_WRITABLE_MASK;
-		if (user_fault) {
-			mmu_unshadow(vcpu->kvm, gfn);
-			goto unshadowed;
-		}
-
-		shadow = kvm_mmu_lookup_page(vcpu->kvm, gfn);
-		if (shadow) {
-			pgprintk("%s: found shadow page for %lx, marking ro\n",
-				 __FUNCTION__, gfn);
-			pte_access &= ~ACC_WRITE_MASK;
-			if (is_writeble_pte(spte)) {
-				spte &= ~PT_WRITABLE_MASK;
-				kvm_x86_ops->tlb_flush(vcpu);
-			}
-			if (write_fault)
-				*ptwrite = 1;
-		}
-	}
-
-unshadowed:
-
-	if (pte_access & ACC_WRITE_MASK)
-		mark_page_dirty(vcpu->kvm, gfn);
-
-	pgprintk("%s: setting spte %llx\n", __FUNCTION__, spte);
-	set_shadow_pte(shadow_pte, spte);
-	page_header_update_slot(vcpu->kvm, shadow_pte, gfn);
-	if (!was_rmapped) {
-		rmap_add(vcpu, shadow_pte, gfn);
-		if (!is_rmap_pte(*shadow_pte))
-			kvm_release_page_clean(page);
-	}
-	else
-		kvm_release_page_clean(page);
-	if (!ptwrite || !*ptwrite)
-		vcpu->arch.last_pte_updated = shadow_pte;
-}
-
-static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)
-{
-}
-
-static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
-{
-	int level = PT32E_ROOT_LEVEL;
-	hpa_t table_addr = vcpu->arch.mmu.root_hpa;
-	int pt_write = 0;
-
-	for (; ; level--) {
-		u32 index = PT64_INDEX(v, level);
-		u64 *table;
-
-		ASSERT(VALID_PAGE(table_addr));
-		table = __va(table_addr);
-
-		if (level == 1) {
-			mmu_set_spte(vcpu, &table[index], ACC_ALL, ACC_ALL,
-				     0, write, 1, &pt_write, gfn);
-			return pt_write || is_io_pte(table[index]);
-		}
-
-		if (table[index] == shadow_trap_nonpresent_pte) {
-			struct kvm_mmu_page *new_table;
-			gfn_t pseudo_gfn;
-
-			pseudo_gfn = (v & PT64_DIR_BASE_ADDR_MASK)
-				>> PAGE_SHIFT;
-			new_table = kvm_mmu_get_page(vcpu, pseudo_gfn,
-						     v, level - 1,
-						     1, ACC_ALL, &table[index],
-						     NULL);
-			if (!new_table) {
-				pgprintk("nonpaging_map: ENOMEM\n");
-				return -ENOMEM;
-			}
-
-			table[index] = __pa(new_table->spt) | PT_PRESENT_MASK
-				| PT_WRITABLE_MASK | PT_USER_MASK;
-		}
-		table_addr = table[index] & PT64_BASE_ADDR_MASK;
-	}
-}
-
-static void nonpaging_prefetch_page(struct kvm_vcpu *vcpu,
-				    struct kvm_mmu_page *sp)
-{
-	int i;
-
-	for (i = 0; i < PT64_ENT_PER_PAGE; ++i)
-		sp->spt[i] = shadow_trap_nonpresent_pte;
-}
-
-static void mmu_free_roots(struct kvm_vcpu *vcpu)
-{
-	int i;
-	struct kvm_mmu_page *sp;
-
-	if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
-		return;
-#ifdef CONFIG_X86_64
-	if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) {
-		hpa_t root = vcpu->arch.mmu.root_hpa;
-
-		sp = page_header(root);
-		--sp->root_count;
-		vcpu->arch.mmu.root_hpa = INVALID_PAGE;
-		return;
-	}
-#endif
-	for (i = 0; i < 4; ++i) {
-		hpa_t root = vcpu->arch.mmu.pae_root[i];
-
-		if (root) {
-			root &= PT64_BASE_ADDR_MASK;
-			sp = page_header(root);
-			--sp->root_count;
-		}
-		vcpu->arch.mmu.pae_root[i] = INVALID_PAGE;
-	}
-	vcpu->arch.mmu.root_hpa = INVALID_PAGE;
-}
-
-static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
-{
-	int i;
-	gfn_t root_gfn;
-	struct kvm_mmu_page *sp;
-
-	root_gfn = vcpu->arch.cr3 >> PAGE_SHIFT;
-
-#ifdef CONFIG_X86_64
-	if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) {
-		hpa_t root = vcpu->arch.mmu.root_hpa;
-
-		ASSERT(!VALID_PAGE(root));
-		sp = kvm_mmu_get_page(vcpu, root_gfn, 0,
-				      PT64_ROOT_LEVEL, 0, ACC_ALL, NULL, NULL);
-		root = __pa(sp->spt);
-		++sp->root_count;
-		vcpu->arch.mmu.root_hpa = root;
-		return;
-	}
-#endif
-	for (i = 0; i < 4; ++i) {
-		hpa_t root = vcpu->arch.mmu.pae_root[i];
-
-		ASSERT(!VALID_PAGE(root));
-		if (vcpu->arch.mmu.root_level == PT32E_ROOT_LEVEL) {
-			if (!is_present_pte(vcpu->arch.pdptrs[i])) {
-				vcpu->arch.mmu.pae_root[i] = 0;
-				continue;
-			}
-			root_gfn = vcpu->arch.pdptrs[i] >> PAGE_SHIFT;
-		} else if (vcpu->arch.mmu.root_level == 0)
-			root_gfn = 0;
-		sp = kvm_mmu_get_page(vcpu, root_gfn, i << 30,
-				      PT32_ROOT_LEVEL, !is_paging(vcpu),
-				      ACC_ALL, NULL, NULL);
-		root = __pa(sp->spt);
-		++sp->root_count;
-		vcpu->arch.mmu.pae_root[i] = root | PT_PRESENT_MASK;
-	}
-	vcpu->arch.mmu.root_hpa = __pa(vcpu->arch.mmu.pae_root);
-}
-
-static gpa_t nonpaging_gva_to_gpa(struct kvm_vcpu *vcpu, gva_t vaddr)
-{
-	return vaddr;
-}
-
-static int nonpaging_page_fault(struct kvm_vcpu *vcpu, gva_t gva,
-				u32 error_code)
-{
-	gfn_t gfn;
-	int r;
-
-	pgprintk("%s: gva %lx error %x\n", __FUNCTION__, gva, error_code);
-	r = mmu_topup_memory_caches(vcpu);
-	if (r)
-		return r;
-
-	ASSERT(vcpu);
-	ASSERT(VALID_PAGE(vcpu->arch.mmu.root_hpa));
-
-	gfn = gva >> PAGE_SHIFT;
-
-	return nonpaging_map(vcpu, gva & PAGE_MASK,
-			     error_code & PFERR_WRITE_MASK, gfn);
-}
-
-static void nonpaging_free(struct kvm_vcpu *vcpu)
-{
-	mmu_free_roots(vcpu);
-}
-
-static int nonpaging_init_context(struct kvm_vcpu *vcpu)
-{
-	struct kvm_mmu *context = &vcpu->arch.mmu;
-
-	context->new_cr3 = nonpaging_new_cr3;
-	context->page_fault = nonpaging_page_fault;
-	context->gva_to_gpa = nonpaging_gva_to_gpa;
-	context->free = nonpaging_free;
-	context->prefetch_page = nonpaging_prefetch_page;
-	context->root_level = 0;
-	context->shadow_root_level = PT32E_ROOT_LEVEL;
-	context->root_hpa = INVALID_PAGE;
-	return 0;
-}
-
-void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu)
-{
-	++vcpu->stat.tlb_flush;
-	kvm_x86_ops->tlb_flush(vcpu);
-}
-
-static void paging_new_cr3(struct kvm_vcpu *vcpu)
-{
-	pgprintk("%s: cr3 %lx\n", __FUNCTION__, vcpu->cr3);
-	mmu_free_roots(vcpu);
-}
-
-static void inject_page_fault(struct kvm_vcpu *vcpu,
-			      u64 addr,
-			      u32 err_code)
-{
-	kvm_inject_page_fault(vcpu, addr, err_code);
-}
-
-static void paging_free(struct kvm_vcpu *vcpu)
-{
-	nonpaging_free(vcpu);
-}
-
-#define PTTYPE 64
-#include "paging_tmpl.h"
-#undef PTTYPE
-
-#define PTTYPE 32
-#include "paging_tmpl.h"
-#undef PTTYPE
-
-static int paging64_init_context_common(struct kvm_vcpu *vcpu, int level)
-{
-	struct kvm_mmu *context = &vcpu->arch.mmu;
-
-	ASSERT(is_pae(vcpu));
-	context->new_cr3 = paging_new_cr3;
-	context->page_fault = paging64_page_fault;
-	context->gva_to_gpa = paging64_gva_to_gpa;
-	context->prefetch_page = paging64_prefetch_page;
-	context->free = paging_free;
-	context->root_level = level;
-	context->shadow_root_level = level;
-	context->root_hpa = INVALID_PAGE;
-	return 0;
-}
-
-static int paging64_init_context(struct kvm_vcpu *vcpu)
-{
-	return paging64_init_context_common(vcpu, PT64_ROOT_LEVEL);
-}
-
-static int paging32_init_context(struct kvm_vcpu *vcpu)
-{
-	struct kvm_mmu *context = &vcpu->arch.mmu;
-
-	context->new_cr3 = paging_new_cr3;
-	context->page_fault = paging32_page_fault;
-	context->gva_to_gpa = paging32_gva_to_gpa;
-	context->free = paging_free;
-	context->prefetch_page = paging32_prefetch_page;
-	context->root_level = PT32_ROOT_LEVEL;
-	context->shadow_root_level = PT32E_ROOT_LEVEL;
-	context->root_hpa = INVALID_PAGE;
-	return 0;
-}
-
-static int paging32E_init_context(struct kvm_vcpu *vcpu)
-{
-	return paging64_init_context_common(vcpu, PT32E_ROOT_LEVEL);
-}
-
-static int init_kvm_mmu(struct kvm_vcpu *vcpu)
-{
-	ASSERT(vcpu);
-	ASSERT(!VALID_PAGE(vcpu->arch.mmu.root_hpa));
-
-	if (!is_paging(vcpu))
-		return nonpaging_init_context(vcpu);
-	else if (is_long_mode(vcpu))
-		return paging64_init_context(vcpu);
-	else if (is_pae(vcpu))
-		return paging32E_init_context(vcpu);
-	else
-		return paging32_init_context(vcpu);
-}
-
-static void destroy_kvm_mmu(struct kvm_vcpu *vcpu)
-{
-	ASSERT(vcpu);
-	if (VALID_PAGE(vcpu->arch.mmu.root_hpa)) {
-		vcpu->arch.mmu.free(vcpu);
-		vcpu->arch.mmu.root_hpa = INVALID_PAGE;
-	}
-}
-
-int kvm_mmu_reset_context(struct kvm_vcpu *vcpu)
-{
-	destroy_kvm_mmu(vcpu);
-	return init_kvm_mmu(vcpu);
-}
-EXPORT_SYMBOL_GPL(kvm_mmu_reset_context);
-
-int kvm_mmu_load(struct kvm_vcpu *vcpu)
-{
-	int r;
-
-	mutex_lock(&vcpu->kvm->lock);
-	r = mmu_topup_memory_caches(vcpu);
-	if (r)
-		goto out;
-	mmu_alloc_roots(vcpu);
-	kvm_x86_ops->set_cr3(vcpu, vcpu->arch.mmu.root_hpa);
-	kvm_mmu_flush_tlb(vcpu);
-out:
-	mutex_unlock(&vcpu->kvm->lock);
-	return r;
-}
-EXPORT_SYMBOL_GPL(kvm_mmu_load);
-
-void kvm_mmu_unload(struct kvm_vcpu *vcpu)
-{
-	mmu_free_roots(vcpu);
-}
-
-static void mmu_pte_write_zap_pte(struct kvm_vcpu *vcpu,
-				  struct kvm_mmu_page *sp,
-				  u64 *spte)
-{
-	u64 pte;
-	struct kvm_mmu_page *child;
-
-	pte = *spte;
-	if (is_shadow_present_pte(pte)) {
-		if (sp->role.level == PT_PAGE_TABLE_LEVEL)
-			rmap_remove(vcpu->kvm, spte);
-		else {
-			child = page_header(pte & PT64_BASE_ADDR_MASK);
-			mmu_page_remove_parent_pte(child, spte);
-		}
-	}
-	set_shadow_pte(spte, shadow_trap_nonpresent_pte);
-}
-
-static void mmu_pte_write_new_pte(struct kvm_vcpu *vcpu,
-				  struct kvm_mmu_page *sp,
-				  u64 *spte,
-				  const void *new, int bytes,
-				  int offset_in_pte)
-{
-	if (sp->role.level != PT_PAGE_TABLE_LEVEL) {
-		++vcpu->kvm->stat.mmu_pde_zapped;
-		return;
-	}
-
-	++vcpu->kvm->stat.mmu_pte_updated;
-	if (sp->role.glevels == PT32_ROOT_LEVEL)
-		paging32_update_pte(vcpu, sp, spte, new, bytes, offset_in_pte);
-	else
-		paging64_update_pte(vcpu, sp, spte, new, bytes, offset_in_pte);
-}
-
-static bool need_remote_flush(u64 old, u64 new)
-{
-	if (!is_shadow_present_pte(old))
-		return false;
-	if (!is_shadow_present_pte(new))
-		return true;
-	if ((old ^ new) & PT64_BASE_ADDR_MASK)
-		return true;
-	old ^= PT64_NX_MASK;
-	new ^= PT64_NX_MASK;
-	return (old & ~new & PT64_PERM_MASK) != 0;
-}
-
-static void mmu_pte_write_flush_tlb(struct kvm_vcpu *vcpu, u64 old, u64 new)
-{
-	if (need_remote_flush(old, new))
-		kvm_flush_remote_tlbs(vcpu->kvm);
-	else
-		kvm_mmu_flush_tlb(vcpu);
-}
-
-static bool last_updated_pte_accessed(struct kvm_vcpu *vcpu)
-{
-	u64 *spte = vcpu->arch.last_pte_updated;
-
-	return !!(spte && (*spte & PT_ACCESSED_MASK));
-}
-
-void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
-		       const u8 *new, int bytes)
-{
-	gfn_t gfn = gpa >> PAGE_SHIFT;
-	struct kvm_mmu_page *sp;
-	struct hlist_node *node, *n;
-	struct hlist_head *bucket;
-	unsigned index;
-	u64 entry;
-	u64 *spte;
-	unsigned offset = offset_in_page(gpa);
-	unsigned pte_size;
-	unsigned page_offset;
-	unsigned misaligned;
-	unsigned quadrant;
-	int level;
-	int flooded = 0;
-	int npte;
-
-	pgprintk("%s: gpa %llx bytes %d\n", __FUNCTION__, gpa, bytes);
-	++vcpu->kvm->stat.mmu_pte_write;
-	kvm_mmu_audit(vcpu, "pre pte write");
-	if (gfn == vcpu->arch.last_pt_write_gfn
-	    && !last_updated_pte_accessed(vcpu)) {
-		++vcpu->arch.last_pt_write_count;
-		if (vcpu->arch.last_pt_write_count >= 3)
-			flooded = 1;
-	} else {
-		vcpu->arch.last_pt_write_gfn = gfn;
-		vcpu->arch.last_pt_write_count = 1;
-		vcpu->arch.last_pte_updated = NULL;
-	}
-	index = kvm_page_table_hashfn(gfn) % KVM_NUM_MMU_PAGES;
-	bucket = &vcpu->kvm->arch.mmu_page_hash[index];
-	hlist_for_each_entry_safe(sp, node, n, bucket, hash_link) {
-		if (sp->gfn != gfn || sp->role.metaphysical)
-			continue;
-		pte_size = sp->role.glevels == PT32_ROOT_LEVEL ? 4 : 8;
-		misaligned = (offset ^ (offset + bytes - 1)) & ~(pte_size - 1);
-		misaligned |= bytes < 4;
-		if (misaligned || flooded) {
-			/*
-			 * Misaligned accesses are too much trouble to fix
-			 * up; also, they usually indicate a page is not used
-			 * as a page table.
-			 *
-			 * If we're seeing too many writes to a page,
-			 * it may no longer be a page table, or we may be
-			 * forking, in which case it is better to unmap the
-			 * page.
-			 */
-			pgprintk("misaligned: gpa %llx bytes %d role %x\n",
-				 gpa, bytes, sp->role.word);
-			kvm_mmu_zap_page(vcpu->kvm, sp);
-			++vcpu->kvm->stat.mmu_flooded;
-			continue;
-		}
-		page_offset = offset;
-		level = sp->role.level;
-		npte = 1;
-		if (sp->role.glevels == PT32_ROOT_LEVEL) {
-			page_offset <<= 1;	/* 32->64 */
-			/*
-			 * A 32-bit pde maps 4MB while the shadow pdes map
-			 * only 2MB.  So we need to double the offset again
-			 * and zap two pdes instead of one.
-			 */
-			if (level == PT32_ROOT_LEVEL) {
-				page_offset &= ~7; /* kill rounding error */
-				page_offset <<= 1;
-				npte = 2;
-			}
-			quadrant = page_offset >> PAGE_SHIFT;
-			page_offset &= ~PAGE_MASK;
-			if (quadrant != sp->role.quadrant)
-				continue;
-		}
-		spte = &sp->spt[page_offset / sizeof(*spte)];
-		while (npte--) {
-			entry = *spte;
-			mmu_pte_write_zap_pte(vcpu, sp, spte);
-			mmu_pte_write_new_pte(vcpu, sp, spte, new, bytes,
-					      page_offset & (pte_size - 1));
-			mmu_pte_write_flush_tlb(vcpu, entry, *spte);
-			++spte;
-		}
-	}
-	kvm_mmu_audit(vcpu, "post pte write");
-}
-
-int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
-{
-	gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva);
-
-	return kvm_mmu_unprotect_page(vcpu->kvm, gpa >> PAGE_SHIFT);
-}
-
-void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
-{
-	while (vcpu->kvm->arch.n_free_mmu_pages < KVM_REFILL_PAGES) {
-		struct kvm_mmu_page *sp;
-
-		sp = container_of(vcpu->kvm->arch.active_mmu_pages.prev,
-				  struct kvm_mmu_page, link);
-		kvm_mmu_zap_page(vcpu->kvm, sp);
-		++vcpu->kvm->stat.mmu_recycled;
-	}
-}
-
-int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code)
-{
-	int r;
-	enum emulation_result er;
-
-	mutex_lock(&vcpu->kvm->lock);
-	r = vcpu->arch.mmu.page_fault(vcpu, cr2, error_code);
-	if (r < 0)
-		goto out;
-
-	if (!r) {
-		r = 1;
-		goto out;
-	}
-
-	r = mmu_topup_memory_caches(vcpu);
-	if (r)
-		goto out;
-
-	er = emulate_instruction(vcpu, vcpu->run, cr2, error_code, 0);
-	mutex_unlock(&vcpu->kvm->lock);
-
-	switch (er) {
-	case EMULATE_DONE:
-		return 1;
-	case EMULATE_DO_MMIO:
-		++vcpu->stat.mmio_exits;
-		return 0;
-	case EMULATE_FAIL:
-		kvm_report_emulation_failure(vcpu, "pagetable");
-		return 1;
-	default:
-		BUG();
-	}
-out:
-	mutex_unlock(&vcpu->kvm->lock);
-	return r;
-}
-EXPORT_SYMBOL_GPL(kvm_mmu_page_fault);
-
-static void free_mmu_pages(struct kvm_vcpu *vcpu)
-{
-	struct kvm_mmu_page *sp;
-
-	while (!list_empty(&vcpu->kvm->arch.active_mmu_pages)) {
-		sp = container_of(vcpu->kvm->arch.active_mmu_pages.next,
-				  struct kvm_mmu_page, link);
-		kvm_mmu_zap_page(vcpu->kvm, sp);
-	}
-	free_page((unsigned long)vcpu->arch.mmu.pae_root);
-}
-
-static int alloc_mmu_pages(struct kvm_vcpu *vcpu)
-{
-	struct page *page;
-	int i;
-
-	ASSERT(vcpu);
-
-	if (vcpu->kvm->arch.n_requested_mmu_pages)
-		vcpu->kvm->arch.n_free_mmu_pages =
-					vcpu->kvm->arch.n_requested_mmu_pages;
-	else
-		vcpu->kvm->arch.n_free_mmu_pages =
-					vcpu->kvm->arch.n_alloc_mmu_pages;
-	/*
-	 * When emulating 32-bit mode, cr3 is only 32 bits even on x86_64.
-	 * Therefore we need to allocate shadow page tables in the first
-	 * 4GB of memory, which happens to fit the DMA32 zone.
-	 */
-	page = alloc_page(GFP_KERNEL | __GFP_DMA32);
-	if (!page)
-		goto error_1;
-	vcpu->arch.mmu.pae_root = page_address(page);
-	for (i = 0; i < 4; ++i)
-		vcpu->arch.mmu.pae_root[i] = INVALID_PAGE;
-
-	return 0;
-
-error_1:
-	free_mmu_pages(vcpu);
-	return -ENOMEM;
-}
-
-int kvm_mmu_create(struct kvm_vcpu *vcpu)
-{
-	ASSERT(vcpu);
-	ASSERT(!VALID_PAGE(vcpu->arch.mmu.root_hpa));
-
-	return alloc_mmu_pages(vcpu);
-}
-
-int kvm_mmu_setup(struct kvm_vcpu *vcpu)
-{
-	ASSERT(vcpu);
-	ASSERT(!VALID_PAGE(vcpu->arch.mmu.root_hpa));
-
-	return init_kvm_mmu(vcpu);
-}
-
-void kvm_mmu_destroy(struct kvm_vcpu *vcpu)
-{
-	ASSERT(vcpu);
-
-	destroy_kvm_mmu(vcpu);
-	free_mmu_pages(vcpu);
-	mmu_free_memory_caches(vcpu);
-}
-
-void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot)
-{
-	struct kvm_mmu_page *sp;
-
-	list_for_each_entry(sp, &kvm->arch.active_mmu_pages, link) {
-		int i;
-		u64 *pt;
-
-		if (!test_bit(slot, &sp->slot_bitmap))
-			continue;
-
-		pt = sp->spt;
-		for (i = 0; i < PT64_ENT_PER_PAGE; ++i)
-			/* avoid RMW */
-			if (pt[i] & PT_WRITABLE_MASK)
-				pt[i] &= ~PT_WRITABLE_MASK;
-	}
-}
-
-void kvm_mmu_zap_all(struct kvm *kvm)
-{
-	struct kvm_mmu_page *sp, *node;
-
-	list_for_each_entry_safe(sp, node, &kvm->arch.active_mmu_pages, link)
-		kvm_mmu_zap_page(kvm, sp);
-
-	kvm_flush_remote_tlbs(kvm);
-}
-
-void kvm_mmu_module_exit(void)
-{
-	if (pte_chain_cache)
-		kmem_cache_destroy(pte_chain_cache);
-	if (rmap_desc_cache)
-		kmem_cache_destroy(rmap_desc_cache);
-	if (mmu_page_header_cache)
-		kmem_cache_destroy(mmu_page_header_cache);
-}
-
-int kvm_mmu_module_init(void)
-{
-	pte_chain_cache = kmem_cache_create("kvm_pte_chain",
-					    sizeof(struct kvm_pte_chain),
-					    0, 0, NULL);
-	if (!pte_chain_cache)
-		goto nomem;
-	rmap_desc_cache = kmem_cache_create("kvm_rmap_desc",
-					    sizeof(struct kvm_rmap_desc),
-					    0, 0, NULL);
-	if (!rmap_desc_cache)
-		goto nomem;
-
-	mmu_page_header_cache = kmem_cache_create("kvm_mmu_page_header",
-						  sizeof(struct kvm_mmu_page),
-						  0, 0, NULL);
-	if (!mmu_page_header_cache)
-		goto nomem;
-
-	return 0;
-
-nomem:
-	kvm_mmu_module_exit();
-	return -ENOMEM;
-}
-
-/*
- * Caculate mmu pages needed for kvm.
- */
-unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm)
-{
-	int i;
-	unsigned int nr_mmu_pages;
-	unsigned int  nr_pages = 0;
-
-	for (i = 0; i < kvm->nmemslots; i++)
-		nr_pages += kvm->memslots[i].npages;
-
-	nr_mmu_pages = nr_pages * KVM_PERMILLE_MMU_PAGES / 1000;
-	nr_mmu_pages = max(nr_mmu_pages,
-			(unsigned int) KVM_MIN_ALLOC_MMU_PAGES);
-
-	return nr_mmu_pages;
-}
-
-#ifdef AUDIT
-
-static const char *audit_msg;
-
-static gva_t canonicalize(gva_t gva)
-{
-#ifdef CONFIG_X86_64
-	gva = (long long)(gva << 16) >> 16;
-#endif
-	return gva;
-}
-
-static void audit_mappings_page(struct kvm_vcpu *vcpu, u64 page_pte,
-				gva_t va, int level)
-{
-	u64 *pt = __va(page_pte & PT64_BASE_ADDR_MASK);
-	int i;
-	gva_t va_delta = 1ul << (PAGE_SHIFT + 9 * (level - 1));
-
-	for (i = 0; i < PT64_ENT_PER_PAGE; ++i, va += va_delta) {
-		u64 ent = pt[i];
-
-		if (ent == shadow_trap_nonpresent_pte)
-			continue;
-
-		va = canonicalize(va);
-		if (level > 1) {
-			if (ent == shadow_notrap_nonpresent_pte)
-				printk(KERN_ERR "audit: (%s) nontrapping pte"
-				       " in nonleaf level: levels %d gva %lx"
-				       " level %d pte %llx\n", audit_msg,
-				       vcpu->arch.mmu.root_level, va, level, ent);
-
-			audit_mappings_page(vcpu, ent, va, level - 1);
-		} else {
-			gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, va);
-			struct page *page = gpa_to_page(vcpu, gpa);
-			hpa_t hpa = page_to_phys(page);
-
-			if (is_shadow_present_pte(ent)
-			    && (ent & PT64_BASE_ADDR_MASK) != hpa)
-				printk(KERN_ERR "xx audit error: (%s) levels %d"
-				       " gva %lx gpa %llx hpa %llx ent %llx %d\n",
-				       audit_msg, vcpu->arch.mmu.root_level,
-				       va, gpa, hpa, ent,
-				       is_shadow_present_pte(ent));
-			else if (ent == shadow_notrap_nonpresent_pte
-				 && !is_error_hpa(hpa))
-				printk(KERN_ERR "audit: (%s) notrap shadow,"
-				       " valid guest gva %lx\n", audit_msg, va);
-			kvm_release_page_clean(page);
-
-		}
-	}
-}
-
-static void audit_mappings(struct kvm_vcpu *vcpu)
-{
-	unsigned i;
-
-	if (vcpu->arch.mmu.root_level == 4)
-		audit_mappings_page(vcpu, vcpu->arch.mmu.root_hpa, 0, 4);
-	else
-		for (i = 0; i < 4; ++i)
-			if (vcpu->arch.mmu.pae_root[i] & PT_PRESENT_MASK)
-				audit_mappings_page(vcpu,
-						    vcpu->arch.mmu.pae_root[i],
-						    i << 30,
-						    2);
-}
-
-static int count_rmaps(struct kvm_vcpu *vcpu)
-{
-	int nmaps = 0;
-	int i, j, k;
-
-	for (i = 0; i < KVM_MEMORY_SLOTS; ++i) {
-		struct kvm_memory_slot *m = &vcpu->kvm->memslots[i];
-		struct kvm_rmap_desc *d;
-
-		for (j = 0; j < m->npages; ++j) {
-			unsigned long *rmapp = &m->rmap[j];
-
-			if (!*rmapp)
-				continue;
-			if (!(*rmapp & 1)) {
-				++nmaps;
-				continue;
-			}
-			d = (struct kvm_rmap_desc *)(*rmapp & ~1ul);
-			while (d) {
-				for (k = 0; k < RMAP_EXT; ++k)
-					if (d->shadow_ptes[k])
-						++nmaps;
-					else
-						break;
-				d = d->more;
-			}
-		}
-	}
-	return nmaps;
-}
-
-static int count_writable_mappings(struct kvm_vcpu *vcpu)
-{
-	int nmaps = 0;
-	struct kvm_mmu_page *sp;
-	int i;
-
-	list_for_each_entry(sp, &vcpu->kvm->arch.active_mmu_pages, link) {
-		u64 *pt = sp->spt;
-
-		if (sp->role.level != PT_PAGE_TABLE_LEVEL)
-			continue;
-
-		for (i = 0; i < PT64_ENT_PER_PAGE; ++i) {
-			u64 ent = pt[i];
-
-			if (!(ent & PT_PRESENT_MASK))
-				continue;
-			if (!(ent & PT_WRITABLE_MASK))
-				continue;
-			++nmaps;
-		}
-	}
-	return nmaps;
-}
-
-static void audit_rmap(struct kvm_vcpu *vcpu)
-{
-	int n_rmap = count_rmaps(vcpu);
-	int n_actual = count_writable_mappings(vcpu);
-
-	if (n_rmap != n_actual)
-		printk(KERN_ERR "%s: (%s) rmap %d actual %d\n",
-		       __FUNCTION__, audit_msg, n_rmap, n_actual);
-}
-
-static void audit_write_protection(struct kvm_vcpu *vcpu)
-{
-	struct kvm_mmu_page *sp;
-	struct kvm_memory_slot *slot;
-	unsigned long *rmapp;
-	gfn_t gfn;
-
-	list_for_each_entry(sp, &vcpu->kvm->arch.active_mmu_pages, link) {
-		if (sp->role.metaphysical)
-			continue;
-
-		slot = gfn_to_memslot(vcpu->kvm, sp->gfn);
-		gfn = unalias_gfn(vcpu->kvm, sp->gfn);
-		rmapp = &slot->rmap[gfn - slot->base_gfn];
-		if (*rmapp)
-			printk(KERN_ERR "%s: (%s) shadow page has writable"
-			       " mappings: gfn %lx role %x\n",
-			       __FUNCTION__, audit_msg, sp->gfn,
-			       sp->role.word);
-	}
-}
-
-static void kvm_mmu_audit(struct kvm_vcpu *vcpu, const char *msg)
-{
-	int olddbg = dbg;
-
-	dbg = 0;
-	audit_msg = msg;
-	audit_rmap(vcpu);
-	audit_write_protection(vcpu);
-	audit_mappings(vcpu);
-	dbg = olddbg;
-}
-
-#endif
diff --git a/drivers/kvm/mmu.h b/drivers/kvm/mmu.h
deleted file mode 100644
index cbfc272262df..000000000000
--- a/drivers/kvm/mmu.h
+++ /dev/null
@@ -1,44 +0,0 @@
-#ifndef __KVM_X86_MMU_H
-#define __KVM_X86_MMU_H
-
-#include "kvm.h"
-
-static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
-{
-	if (unlikely(vcpu->kvm->arch.n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))
-		__kvm_mmu_free_some_pages(vcpu);
-}
-
-static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu)
-{
-	if (likely(vcpu->arch.mmu.root_hpa != INVALID_PAGE))
-		return 0;
-
-	return kvm_mmu_load(vcpu);
-}
-
-static inline int is_long_mode(struct kvm_vcpu *vcpu)
-{
-#ifdef CONFIG_X86_64
-	return vcpu->arch.shadow_efer & EFER_LME;
-#else
-	return 0;
-#endif
-}
-
-static inline int is_pae(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.cr4 & X86_CR4_PAE;
-}
-
-static inline int is_pse(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.cr4 & X86_CR4_PSE;
-}
-
-static inline int is_paging(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.cr0 & X86_CR0_PG;
-}
-
-#endif
diff --git a/drivers/kvm/paging_tmpl.h b/drivers/kvm/paging_tmpl.h
deleted file mode 100644
index 56b88f7e83ef..000000000000
--- a/drivers/kvm/paging_tmpl.h
+++ /dev/null
@@ -1,461 +0,0 @@
-/*
- * Kernel-based Virtual Machine driver for Linux
- *
- * This module enables machines with Intel VT-x extensions to run virtual
- * machines without emulation or binary translation.
- *
- * MMU support
- *
- * Copyright (C) 2006 Qumranet, Inc.
- *
- * Authors:
- *   Yaniv Kamay  <yaniv@qumranet.com>
- *   Avi Kivity   <avi@qumranet.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- *
- */
-
-/*
- * We need the mmu code to access both 32-bit and 64-bit guest ptes,
- * so the code in this file is compiled twice, once per pte size.
- */
-
-#if PTTYPE == 64
-	#define pt_element_t u64
-	#define guest_walker guest_walker64
-	#define FNAME(name) paging##64_##name
-	#define PT_BASE_ADDR_MASK PT64_BASE_ADDR_MASK
-	#define PT_DIR_BASE_ADDR_MASK PT64_DIR_BASE_ADDR_MASK
-	#define PT_INDEX(addr, level) PT64_INDEX(addr, level)
-	#define SHADOW_PT_INDEX(addr, level) PT64_INDEX(addr, level)
-	#define PT_LEVEL_MASK(level) PT64_LEVEL_MASK(level)
-	#define PT_LEVEL_BITS PT64_LEVEL_BITS
-	#ifdef CONFIG_X86_64
-	#define PT_MAX_FULL_LEVELS 4
-	#define CMPXCHG cmpxchg
-	#else
-	#define CMPXCHG cmpxchg64
-	#define PT_MAX_FULL_LEVELS 2
-	#endif
-#elif PTTYPE == 32
-	#define pt_element_t u32
-	#define guest_walker guest_walker32
-	#define FNAME(name) paging##32_##name
-	#define PT_BASE_ADDR_MASK PT32_BASE_ADDR_MASK
-	#define PT_DIR_BASE_ADDR_MASK PT32_DIR_BASE_ADDR_MASK
-	#define PT_INDEX(addr, level) PT32_INDEX(addr, level)
-	#define SHADOW_PT_INDEX(addr, level) PT64_INDEX(addr, level)
-	#define PT_LEVEL_MASK(level) PT32_LEVEL_MASK(level)
-	#define PT_LEVEL_BITS PT32_LEVEL_BITS
-	#define PT_MAX_FULL_LEVELS 2
-	#define CMPXCHG cmpxchg
-#else
-	#error Invalid PTTYPE value
-#endif
-
-#define gpte_to_gfn FNAME(gpte_to_gfn)
-#define gpte_to_gfn_pde FNAME(gpte_to_gfn_pde)
-
-/*
- * The guest_walker structure emulates the behavior of the hardware page
- * table walker.
- */
-struct guest_walker {
-	int level;
-	gfn_t table_gfn[PT_MAX_FULL_LEVELS];
-	pt_element_t ptes[PT_MAX_FULL_LEVELS];
-	gpa_t pte_gpa[PT_MAX_FULL_LEVELS];
-	unsigned pt_access;
-	unsigned pte_access;
-	gfn_t gfn;
-	u32 error_code;
-};
-
-static gfn_t gpte_to_gfn(pt_element_t gpte)
-{
-	return (gpte & PT_BASE_ADDR_MASK) >> PAGE_SHIFT;
-}
-
-static gfn_t gpte_to_gfn_pde(pt_element_t gpte)
-{
-	return (gpte & PT_DIR_BASE_ADDR_MASK) >> PAGE_SHIFT;
-}
-
-static bool FNAME(cmpxchg_gpte)(struct kvm *kvm,
-			 gfn_t table_gfn, unsigned index,
-			 pt_element_t orig_pte, pt_element_t new_pte)
-{
-	pt_element_t ret;
-	pt_element_t *table;
-	struct page *page;
-
-	page = gfn_to_page(kvm, table_gfn);
-	table = kmap_atomic(page, KM_USER0);
-
-	ret = CMPXCHG(&table[index], orig_pte, new_pte);
-
-	kunmap_atomic(table, KM_USER0);
-
-	kvm_release_page_dirty(page);
-
-	return (ret != orig_pte);
-}
-
-static unsigned FNAME(gpte_access)(struct kvm_vcpu *vcpu, pt_element_t gpte)
-{
-	unsigned access;
-
-	access = (gpte & (PT_WRITABLE_MASK | PT_USER_MASK)) | ACC_EXEC_MASK;
-#if PTTYPE == 64
-	if (is_nx(vcpu))
-		access &= ~(gpte >> PT64_NX_SHIFT);
-#endif
-	return access;
-}
-
-/*
- * Fetch a guest pte for a guest virtual address
- */
-static int FNAME(walk_addr)(struct guest_walker *walker,
-			    struct kvm_vcpu *vcpu, gva_t addr,
-			    int write_fault, int user_fault, int fetch_fault)
-{
-	pt_element_t pte;
-	gfn_t table_gfn;
-	unsigned index, pt_access, pte_access;
-	gpa_t pte_gpa;
-
-	pgprintk("%s: addr %lx\n", __FUNCTION__, addr);
-walk:
-	walker->level = vcpu->arch.mmu.root_level;
-	pte = vcpu->arch.cr3;
-#if PTTYPE == 64
-	if (!is_long_mode(vcpu)) {
-		pte = vcpu->arch.pdptrs[(addr >> 30) & 3];
-		if (!is_present_pte(pte))
-			goto not_present;
-		--walker->level;
-	}
-#endif
-	ASSERT((!is_long_mode(vcpu) && is_pae(vcpu)) ||
-	       (vcpu->cr3 & CR3_NONPAE_RESERVED_BITS) == 0);
-
-	pt_access = ACC_ALL;
-
-	for (;;) {
-		index = PT_INDEX(addr, walker->level);
-
-		table_gfn = gpte_to_gfn(pte);
-		pte_gpa = gfn_to_gpa(table_gfn);
-		pte_gpa += index * sizeof(pt_element_t);
-		walker->table_gfn[walker->level - 1] = table_gfn;
-		walker->pte_gpa[walker->level - 1] = pte_gpa;
-		pgprintk("%s: table_gfn[%d] %lx\n", __FUNCTION__,
-			 walker->level - 1, table_gfn);
-
-		kvm_read_guest(vcpu->kvm, pte_gpa, &pte, sizeof(pte));
-
-		if (!is_present_pte(pte))
-			goto not_present;
-
-		if (write_fault && !is_writeble_pte(pte))
-			if (user_fault || is_write_protection(vcpu))
-				goto access_error;
-
-		if (user_fault && !(pte & PT_USER_MASK))
-			goto access_error;
-
-#if PTTYPE == 64
-		if (fetch_fault && is_nx(vcpu) && (pte & PT64_NX_MASK))
-			goto access_error;
-#endif
-
-		if (!(pte & PT_ACCESSED_MASK)) {
-			mark_page_dirty(vcpu->kvm, table_gfn);
-			if (FNAME(cmpxchg_gpte)(vcpu->kvm, table_gfn,
-			    index, pte, pte|PT_ACCESSED_MASK))
-				goto walk;
-			pte |= PT_ACCESSED_MASK;
-		}
-
-		pte_access = pt_access & FNAME(gpte_access)(vcpu, pte);
-
-		walker->ptes[walker->level - 1] = pte;
-
-		if (walker->level == PT_PAGE_TABLE_LEVEL) {
-			walker->gfn = gpte_to_gfn(pte);
-			break;
-		}
-
-		if (walker->level == PT_DIRECTORY_LEVEL
-		    && (pte & PT_PAGE_SIZE_MASK)
-		    && (PTTYPE == 64 || is_pse(vcpu))) {
-			walker->gfn = gpte_to_gfn_pde(pte);
-			walker->gfn += PT_INDEX(addr, PT_PAGE_TABLE_LEVEL);
-			if (PTTYPE == 32 && is_cpuid_PSE36())
-				walker->gfn += pse36_gfn_delta(pte);
-			break;
-		}
-
-		pt_access = pte_access;
-		--walker->level;
-	}
-
-	if (write_fault && !is_dirty_pte(pte)) {
-		bool ret;
-
-		mark_page_dirty(vcpu->kvm, table_gfn);
-		ret = FNAME(cmpxchg_gpte)(vcpu->kvm, table_gfn, index, pte,
-			    pte|PT_DIRTY_MASK);
-		if (ret)
-			goto walk;
-		pte |= PT_DIRTY_MASK;
-		kvm_mmu_pte_write(vcpu, pte_gpa, (u8 *)&pte, sizeof(pte));
-		walker->ptes[walker->level - 1] = pte;
-	}
-
-	walker->pt_access = pt_access;
-	walker->pte_access = pte_access;
-	pgprintk("%s: pte %llx pte_access %x pt_access %x\n",
-		 __FUNCTION__, (u64)pte, pt_access, pte_access);
-	return 1;
-
-not_present:
-	walker->error_code = 0;
-	goto err;
-
-access_error:
-	walker->error_code = PFERR_PRESENT_MASK;
-
-err:
-	if (write_fault)
-		walker->error_code |= PFERR_WRITE_MASK;
-	if (user_fault)
-		walker->error_code |= PFERR_USER_MASK;
-	if (fetch_fault)
-		walker->error_code |= PFERR_FETCH_MASK;
-	return 0;
-}
-
-static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *page,
-			      u64 *spte, const void *pte, int bytes,
-			      int offset_in_pte)
-{
-	pt_element_t gpte;
-	unsigned pte_access;
-
-	gpte = *(const pt_element_t *)pte;
-	if (~gpte & (PT_PRESENT_MASK | PT_ACCESSED_MASK)) {
-		if (!offset_in_pte && !is_present_pte(gpte))
-			set_shadow_pte(spte, shadow_notrap_nonpresent_pte);
-		return;
-	}
-	if (bytes < sizeof(pt_element_t))
-		return;
-	pgprintk("%s: gpte %llx spte %p\n", __FUNCTION__, (u64)gpte, spte);
-	pte_access = page->role.access & FNAME(gpte_access)(vcpu, gpte);
-	mmu_set_spte(vcpu, spte, page->role.access, pte_access, 0, 0,
-		     gpte & PT_DIRTY_MASK, NULL, gpte_to_gfn(gpte));
-}
-
-/*
- * Fetch a shadow pte for a specific level in the paging hierarchy.
- */
-static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
-			 struct guest_walker *walker,
-			 int user_fault, int write_fault, int *ptwrite)
-{
-	hpa_t shadow_addr;
-	int level;
-	u64 *shadow_ent;
-	unsigned access = walker->pt_access;
-
-	if (!is_present_pte(walker->ptes[walker->level - 1]))
-		return NULL;
-
-	shadow_addr = vcpu->arch.mmu.root_hpa;
-	level = vcpu->arch.mmu.shadow_root_level;
-	if (level == PT32E_ROOT_LEVEL) {
-		shadow_addr = vcpu->arch.mmu.pae_root[(addr >> 30) & 3];
-		shadow_addr &= PT64_BASE_ADDR_MASK;
-		--level;
-	}
-
-	for (; ; level--) {
-		u32 index = SHADOW_PT_INDEX(addr, level);
-		struct kvm_mmu_page *shadow_page;
-		u64 shadow_pte;
-		int metaphysical;
-		gfn_t table_gfn;
-		bool new_page = 0;
-
-		shadow_ent = ((u64 *)__va(shadow_addr)) + index;
-		if (is_shadow_present_pte(*shadow_ent)) {
-			if (level == PT_PAGE_TABLE_LEVEL)
-				break;
-			shadow_addr = *shadow_ent & PT64_BASE_ADDR_MASK;
-			continue;
-		}
-
-		if (level == PT_PAGE_TABLE_LEVEL)
-			break;
-
-		if (level - 1 == PT_PAGE_TABLE_LEVEL
-		    && walker->level == PT_DIRECTORY_LEVEL) {
-			metaphysical = 1;
-			if (!is_dirty_pte(walker->ptes[level - 1]))
-				access &= ~ACC_WRITE_MASK;
-			table_gfn = gpte_to_gfn(walker->ptes[level - 1]);
-		} else {
-			metaphysical = 0;
-			table_gfn = walker->table_gfn[level - 2];
-		}
-		shadow_page = kvm_mmu_get_page(vcpu, table_gfn, addr, level-1,
-					       metaphysical, access,
-					       shadow_ent, &new_page);
-		if (new_page && !metaphysical) {
-			pt_element_t curr_pte;
-			kvm_read_guest(vcpu->kvm, walker->pte_gpa[level - 2],
-				       &curr_pte, sizeof(curr_pte));
-			if (curr_pte != walker->ptes[level - 2])
-				return NULL;
-		}
-		shadow_addr = __pa(shadow_page->spt);
-		shadow_pte = shadow_addr | PT_PRESENT_MASK | PT_ACCESSED_MASK
-			| PT_WRITABLE_MASK | PT_USER_MASK;
-		*shadow_ent = shadow_pte;
-	}
-
-	mmu_set_spte(vcpu, shadow_ent, access, walker->pte_access & access,
-		     user_fault, write_fault,
-		     walker->ptes[walker->level-1] & PT_DIRTY_MASK,
-		     ptwrite, walker->gfn);
-
-	return shadow_ent;
-}
-
-/*
- * Page fault handler.  There are several causes for a page fault:
- *   - there is no shadow pte for the guest pte
- *   - write access through a shadow pte marked read only so that we can set
- *     the dirty bit
- *   - write access to a shadow pte marked read only so we can update the page
- *     dirty bitmap, when userspace requests it
- *   - mmio access; in this case we will never install a present shadow pte
- *   - normal guest page fault due to the guest pte marked not present, not
- *     writable, or not executable
- *
- *  Returns: 1 if we need to emulate the instruction, 0 otherwise, or
- *           a negative value on error.
- */
-static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
-			       u32 error_code)
-{
-	int write_fault = error_code & PFERR_WRITE_MASK;
-	int user_fault = error_code & PFERR_USER_MASK;
-	int fetch_fault = error_code & PFERR_FETCH_MASK;
-	struct guest_walker walker;
-	u64 *shadow_pte;
-	int write_pt = 0;
-	int r;
-
-	pgprintk("%s: addr %lx err %x\n", __FUNCTION__, addr, error_code);
-	kvm_mmu_audit(vcpu, "pre page fault");
-
-	r = mmu_topup_memory_caches(vcpu);
-	if (r)
-		return r;
-
-	/*
-	 * Look up the shadow pte for the faulting address.
-	 */
-	r = FNAME(walk_addr)(&walker, vcpu, addr, write_fault, user_fault,
-			     fetch_fault);
-
-	/*
-	 * The page is not mapped by the guest.  Let the guest handle it.
-	 */
-	if (!r) {
-		pgprintk("%s: guest page fault\n", __FUNCTION__);
-		inject_page_fault(vcpu, addr, walker.error_code);
-		vcpu->arch.last_pt_write_count = 0; /* reset fork detector */
-		return 0;
-	}
-
-	shadow_pte = FNAME(fetch)(vcpu, addr, &walker, user_fault, write_fault,
-				  &write_pt);
-	pgprintk("%s: shadow pte %p %llx ptwrite %d\n", __FUNCTION__,
-		 shadow_pte, *shadow_pte, write_pt);
-
-	if (!write_pt)
-		vcpu->arch.last_pt_write_count = 0; /* reset fork detector */
-
-	/*
-	 * mmio: emulate if accessible, otherwise its a guest fault.
-	 */
-	if (shadow_pte && is_io_pte(*shadow_pte))
-		return 1;
-
-	++vcpu->stat.pf_fixed;
-	kvm_mmu_audit(vcpu, "post page fault (fixed)");
-
-	return write_pt;
-}
-
-static gpa_t FNAME(gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t vaddr)
-{
-	struct guest_walker walker;
-	gpa_t gpa = UNMAPPED_GVA;
-	int r;
-
-	r = FNAME(walk_addr)(&walker, vcpu, vaddr, 0, 0, 0);
-
-	if (r) {
-		gpa = gfn_to_gpa(walker.gfn);
-		gpa |= vaddr & ~PAGE_MASK;
-	}
-
-	return gpa;
-}
-
-static void FNAME(prefetch_page)(struct kvm_vcpu *vcpu,
-				 struct kvm_mmu_page *sp)
-{
-	int i, offset = 0;
-	pt_element_t *gpt;
-	struct page *page;
-
-	if (sp->role.metaphysical
-	    || (PTTYPE == 32 && sp->role.level > PT_PAGE_TABLE_LEVEL)) {
-		nonpaging_prefetch_page(vcpu, sp);
-		return;
-	}
-
-	if (PTTYPE == 32)
-		offset = sp->role.quadrant << PT64_LEVEL_BITS;
-	page = gfn_to_page(vcpu->kvm, sp->gfn);
-	gpt = kmap_atomic(page, KM_USER0);
-	for (i = 0; i < PT64_ENT_PER_PAGE; ++i)
-		if (is_present_pte(gpt[offset + i]))
-			sp->spt[i] = shadow_trap_nonpresent_pte;
-		else
-			sp->spt[i] = shadow_notrap_nonpresent_pte;
-	kunmap_atomic(gpt, KM_USER0);
-	kvm_release_page_clean(page);
-}
-
-#undef pt_element_t
-#undef guest_walker
-#undef FNAME
-#undef PT_BASE_ADDR_MASK
-#undef PT_INDEX
-#undef SHADOW_PT_INDEX
-#undef PT_LEVEL_MASK
-#undef PT_DIR_BASE_ADDR_MASK
-#undef PT_LEVEL_BITS
-#undef PT_MAX_FULL_LEVELS
-#undef gpte_to_gfn
-#undef gpte_to_gfn_pde
-#undef CMPXCHG
diff --git a/drivers/kvm/segment_descriptor.h b/drivers/kvm/segment_descriptor.h
deleted file mode 100644
index 56fc4c873389..000000000000
--- a/drivers/kvm/segment_descriptor.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#ifndef __SEGMENT_DESCRIPTOR_H
-#define __SEGMENT_DESCRIPTOR_H
-
-struct segment_descriptor {
-	u16 limit_low;
-	u16 base_low;
-	u8  base_mid;
-	u8  type : 4;
-	u8  system : 1;
-	u8  dpl : 2;
-	u8  present : 1;
-	u8  limit_high : 4;
-	u8  avl : 1;
-	u8  long_mode : 1;
-	u8  default_op : 1;
-	u8  granularity : 1;
-	u8  base_high;
-} __attribute__((packed));
-
-#ifdef CONFIG_X86_64
-/* LDT or TSS descriptor in the GDT. 16 bytes. */
-struct segment_descriptor_64 {
-	struct segment_descriptor s;
-	u32 base_higher;
-	u32 pad_zero;
-};
-
-#endif
-#endif
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
deleted file mode 100644
index e606f6d18669..000000000000
--- a/drivers/kvm/svm.c
+++ /dev/null
@@ -1,1725 +0,0 @@
-/*
- * Kernel-based Virtual Machine driver for Linux
- *
- * AMD SVM support
- *
- * Copyright (C) 2006 Qumranet, Inc.
- *
- * Authors:
- *   Yaniv Kamay  <yaniv@qumranet.com>
- *   Avi Kivity   <avi@qumranet.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- *
- */
-#include "x86.h"
-#include "kvm_svm.h"
-#include "x86_emulate.h"
-#include "irq.h"
-#include "mmu.h"
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/vmalloc.h>
-#include <linux/highmem.h>
-#include <linux/sched.h>
-
-#include <asm/desc.h>
-
-MODULE_AUTHOR("Qumranet");
-MODULE_LICENSE("GPL");
-
-#define IOPM_ALLOC_ORDER 2
-#define MSRPM_ALLOC_ORDER 1
-
-#define DB_VECTOR 1
-#define UD_VECTOR 6
-#define GP_VECTOR 13
-
-#define DR7_GD_MASK (1 << 13)
-#define DR6_BD_MASK (1 << 13)
-
-#define SEG_TYPE_LDT 2
-#define SEG_TYPE_BUSY_TSS16 3
-
-#define SVM_FEATURE_NPT  (1 << 0)
-#define SVM_FEATURE_LBRV (1 << 1)
-#define SVM_DEATURE_SVML (1 << 2)
-
-static void kvm_reput_irq(struct vcpu_svm *svm);
-
-static inline struct vcpu_svm *to_svm(struct kvm_vcpu *vcpu)
-{
-	return container_of(vcpu, struct vcpu_svm, vcpu);
-}
-
-unsigned long iopm_base;
-unsigned long msrpm_base;
-
-struct kvm_ldttss_desc {
-	u16 limit0;
-	u16 base0;
-	unsigned base1 : 8, type : 5, dpl : 2, p : 1;
-	unsigned limit1 : 4, zero0 : 3, g : 1, base2 : 8;
-	u32 base3;
-	u32 zero1;
-} __attribute__((packed));
-
-struct svm_cpu_data {
-	int cpu;
-
-	u64 asid_generation;
-	u32 max_asid;
-	u32 next_asid;
-	struct kvm_ldttss_desc *tss_desc;
-
-	struct page *save_area;
-};
-
-static DEFINE_PER_CPU(struct svm_cpu_data *, svm_data);
-static uint32_t svm_features;
-
-struct svm_init_data {
-	int cpu;
-	int r;
-};
-
-static u32 msrpm_ranges[] = {0, 0xc0000000, 0xc0010000};
-
-#define NUM_MSR_MAPS ARRAY_SIZE(msrpm_ranges)
-#define MSRS_RANGE_SIZE 2048
-#define MSRS_IN_RANGE (MSRS_RANGE_SIZE * 8 / 2)
-
-#define MAX_INST_SIZE 15
-
-static inline u32 svm_has(u32 feat)
-{
-	return svm_features & feat;
-}
-
-static inline u8 pop_irq(struct kvm_vcpu *vcpu)
-{
-	int word_index = __ffs(vcpu->arch.irq_summary);
-	int bit_index = __ffs(vcpu->arch.irq_pending[word_index]);
-	int irq = word_index * BITS_PER_LONG + bit_index;
-
-	clear_bit(bit_index, &vcpu->arch.irq_pending[word_index]);
-	if (!vcpu->arch.irq_pending[word_index])
-		clear_bit(word_index, &vcpu->arch.irq_summary);
-	return irq;
-}
-
-static inline void push_irq(struct kvm_vcpu *vcpu, u8 irq)
-{
-	set_bit(irq, vcpu->arch.irq_pending);
-	set_bit(irq / BITS_PER_LONG, &vcpu->arch.irq_summary);
-}
-
-static inline void clgi(void)
-{
-	asm volatile (SVM_CLGI);
-}
-
-static inline void stgi(void)
-{
-	asm volatile (SVM_STGI);
-}
-
-static inline void invlpga(unsigned long addr, u32 asid)
-{
-	asm volatile (SVM_INVLPGA :: "a"(addr), "c"(asid));
-}
-
-static inline unsigned long kvm_read_cr2(void)
-{
-	unsigned long cr2;
-
-	asm volatile ("mov %%cr2, %0" : "=r" (cr2));
-	return cr2;
-}
-
-static inline void kvm_write_cr2(unsigned long val)
-{
-	asm volatile ("mov %0, %%cr2" :: "r" (val));
-}
-
-static inline unsigned long read_dr6(void)
-{
-	unsigned long dr6;
-
-	asm volatile ("mov %%dr6, %0" : "=r" (dr6));
-	return dr6;
-}
-
-static inline void write_dr6(unsigned long val)
-{
-	asm volatile ("mov %0, %%dr6" :: "r" (val));
-}
-
-static inline unsigned long read_dr7(void)
-{
-	unsigned long dr7;
-
-	asm volatile ("mov %%dr7, %0" : "=r" (dr7));
-	return dr7;
-}
-
-static inline void write_dr7(unsigned long val)
-{
-	asm volatile ("mov %0, %%dr7" :: "r" (val));
-}
-
-static inline void force_new_asid(struct kvm_vcpu *vcpu)
-{
-	to_svm(vcpu)->asid_generation--;
-}
-
-static inline void flush_guest_tlb(struct kvm_vcpu *vcpu)
-{
-	force_new_asid(vcpu);
-}
-
-static void svm_set_efer(struct kvm_vcpu *vcpu, u64 efer)
-{
-	if (!(efer & EFER_LMA))
-		efer &= ~EFER_LME;
-
-	to_svm(vcpu)->vmcb->save.efer = efer | MSR_EFER_SVME_MASK;
-	vcpu->arch.shadow_efer = efer;
-}
-
-static void svm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr,
-				bool has_error_code, u32 error_code)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	svm->vmcb->control.event_inj = nr
-		| SVM_EVTINJ_VALID
-		| (has_error_code ? SVM_EVTINJ_VALID_ERR : 0)
-		| SVM_EVTINJ_TYPE_EXEPT;
-	svm->vmcb->control.event_inj_err = error_code;
-}
-
-static bool svm_exception_injected(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	return !(svm->vmcb->control.exit_int_info & SVM_EXITINTINFO_VALID);
-}
-
-static int is_external_interrupt(u32 info)
-{
-	info &= SVM_EVTINJ_TYPE_MASK | SVM_EVTINJ_VALID;
-	return info == (SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_INTR);
-}
-
-static void skip_emulated_instruction(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	if (!svm->next_rip) {
-		printk(KERN_DEBUG "%s: NOP\n", __FUNCTION__);
-		return;
-	}
-	if (svm->next_rip - svm->vmcb->save.rip > MAX_INST_SIZE)
-		printk(KERN_ERR "%s: ip 0x%llx next 0x%llx\n",
-		       __FUNCTION__,
-		       svm->vmcb->save.rip,
-		       svm->next_rip);
-
-	vcpu->arch.rip = svm->vmcb->save.rip = svm->next_rip;
-	svm->vmcb->control.int_state &= ~SVM_INTERRUPT_SHADOW_MASK;
-
-	vcpu->arch.interrupt_window_open = 1;
-}
-
-static int has_svm(void)
-{
-	uint32_t eax, ebx, ecx, edx;
-
-	if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) {
-		printk(KERN_INFO "has_svm: not amd\n");
-		return 0;
-	}
-
-	cpuid(0x80000000, &eax, &ebx, &ecx, &edx);
-	if (eax < SVM_CPUID_FUNC) {
-		printk(KERN_INFO "has_svm: can't execute cpuid_8000000a\n");
-		return 0;
-	}
-
-	cpuid(0x80000001, &eax, &ebx, &ecx, &edx);
-	if (!(ecx & (1 << SVM_CPUID_FEATURE_SHIFT))) {
-		printk(KERN_DEBUG "has_svm: svm not available\n");
-		return 0;
-	}
-	return 1;
-}
-
-static void svm_hardware_disable(void *garbage)
-{
-	struct svm_cpu_data *svm_data
-		= per_cpu(svm_data, raw_smp_processor_id());
-
-	if (svm_data) {
-		uint64_t efer;
-
-		wrmsrl(MSR_VM_HSAVE_PA, 0);
-		rdmsrl(MSR_EFER, efer);
-		wrmsrl(MSR_EFER, efer & ~MSR_EFER_SVME_MASK);
-		per_cpu(svm_data, raw_smp_processor_id()) = NULL;
-		__free_page(svm_data->save_area);
-		kfree(svm_data);
-	}
-}
-
-static void svm_hardware_enable(void *garbage)
-{
-
-	struct svm_cpu_data *svm_data;
-	uint64_t efer;
-#ifdef CONFIG_X86_64
-	struct desc_ptr gdt_descr;
-#else
-	struct desc_ptr gdt_descr;
-#endif
-	struct desc_struct *gdt;
-	int me = raw_smp_processor_id();
-
-	if (!has_svm()) {
-		printk(KERN_ERR "svm_cpu_init: err EOPNOTSUPP on %d\n", me);
-		return;
-	}
-	svm_data = per_cpu(svm_data, me);
-
-	if (!svm_data) {
-		printk(KERN_ERR "svm_cpu_init: svm_data is NULL on %d\n",
-		       me);
-		return;
-	}
-
-	svm_data->asid_generation = 1;
-	svm_data->max_asid = cpuid_ebx(SVM_CPUID_FUNC) - 1;
-	svm_data->next_asid = svm_data->max_asid + 1;
-	svm_features = cpuid_edx(SVM_CPUID_FUNC);
-
-	asm volatile ("sgdt %0" : "=m"(gdt_descr));
-	gdt = (struct desc_struct *)gdt_descr.address;
-	svm_data->tss_desc = (struct kvm_ldttss_desc *)(gdt + GDT_ENTRY_TSS);
-
-	rdmsrl(MSR_EFER, efer);
-	wrmsrl(MSR_EFER, efer | MSR_EFER_SVME_MASK);
-
-	wrmsrl(MSR_VM_HSAVE_PA,
-	       page_to_pfn(svm_data->save_area) << PAGE_SHIFT);
-}
-
-static int svm_cpu_init(int cpu)
-{
-	struct svm_cpu_data *svm_data;
-	int r;
-
-	svm_data = kzalloc(sizeof(struct svm_cpu_data), GFP_KERNEL);
-	if (!svm_data)
-		return -ENOMEM;
-	svm_data->cpu = cpu;
-	svm_data->save_area = alloc_page(GFP_KERNEL);
-	r = -ENOMEM;
-	if (!svm_data->save_area)
-		goto err_1;
-
-	per_cpu(svm_data, cpu) = svm_data;
-
-	return 0;
-
-err_1:
-	kfree(svm_data);
-	return r;
-
-}
-
-static void set_msr_interception(u32 *msrpm, unsigned msr,
-				 int read, int write)
-{
-	int i;
-
-	for (i = 0; i < NUM_MSR_MAPS; i++) {
-		if (msr >= msrpm_ranges[i] &&
-		    msr < msrpm_ranges[i] + MSRS_IN_RANGE) {
-			u32 msr_offset = (i * MSRS_IN_RANGE + msr -
-					  msrpm_ranges[i]) * 2;
-
-			u32 *base = msrpm + (msr_offset / 32);
-			u32 msr_shift = msr_offset % 32;
-			u32 mask = ((write) ? 0 : 2) | ((read) ? 0 : 1);
-			*base = (*base & ~(0x3 << msr_shift)) |
-				(mask << msr_shift);
-			return;
-		}
-	}
-	BUG();
-}
-
-static __init int svm_hardware_setup(void)
-{
-	int cpu;
-	struct page *iopm_pages;
-	struct page *msrpm_pages;
-	void *iopm_va, *msrpm_va;
-	int r;
-
-	iopm_pages = alloc_pages(GFP_KERNEL, IOPM_ALLOC_ORDER);
-
-	if (!iopm_pages)
-		return -ENOMEM;
-
-	iopm_va = page_address(iopm_pages);
-	memset(iopm_va, 0xff, PAGE_SIZE * (1 << IOPM_ALLOC_ORDER));
-	clear_bit(0x80, iopm_va); /* allow direct access to PC debug port */
-	iopm_base = page_to_pfn(iopm_pages) << PAGE_SHIFT;
-
-
-	msrpm_pages = alloc_pages(GFP_KERNEL, MSRPM_ALLOC_ORDER);
-
-	r = -ENOMEM;
-	if (!msrpm_pages)
-		goto err_1;
-
-	msrpm_va = page_address(msrpm_pages);
-	memset(msrpm_va, 0xff, PAGE_SIZE * (1 << MSRPM_ALLOC_ORDER));
-	msrpm_base = page_to_pfn(msrpm_pages) << PAGE_SHIFT;
-
-#ifdef CONFIG_X86_64
-	set_msr_interception(msrpm_va, MSR_GS_BASE, 1, 1);
-	set_msr_interception(msrpm_va, MSR_FS_BASE, 1, 1);
-	set_msr_interception(msrpm_va, MSR_KERNEL_GS_BASE, 1, 1);
-	set_msr_interception(msrpm_va, MSR_LSTAR, 1, 1);
-	set_msr_interception(msrpm_va, MSR_CSTAR, 1, 1);
-	set_msr_interception(msrpm_va, MSR_SYSCALL_MASK, 1, 1);
-#endif
-	set_msr_interception(msrpm_va, MSR_K6_STAR, 1, 1);
-	set_msr_interception(msrpm_va, MSR_IA32_SYSENTER_CS, 1, 1);
-	set_msr_interception(msrpm_va, MSR_IA32_SYSENTER_ESP, 1, 1);
-	set_msr_interception(msrpm_va, MSR_IA32_SYSENTER_EIP, 1, 1);
-
-	for_each_online_cpu(cpu) {
-		r = svm_cpu_init(cpu);
-		if (r)
-			goto err_2;
-	}
-	return 0;
-
-err_2:
-	__free_pages(msrpm_pages, MSRPM_ALLOC_ORDER);
-	msrpm_base = 0;
-err_1:
-	__free_pages(iopm_pages, IOPM_ALLOC_ORDER);
-	iopm_base = 0;
-	return r;
-}
-
-static __exit void svm_hardware_unsetup(void)
-{
-	__free_pages(pfn_to_page(msrpm_base >> PAGE_SHIFT), MSRPM_ALLOC_ORDER);
-	__free_pages(pfn_to_page(iopm_base >> PAGE_SHIFT), IOPM_ALLOC_ORDER);
-	iopm_base = msrpm_base = 0;
-}
-
-static void init_seg(struct vmcb_seg *seg)
-{
-	seg->selector = 0;
-	seg->attrib = SVM_SELECTOR_P_MASK | SVM_SELECTOR_S_MASK |
-		SVM_SELECTOR_WRITE_MASK; /* Read/Write Data Segment */
-	seg->limit = 0xffff;
-	seg->base = 0;
-}
-
-static void init_sys_seg(struct vmcb_seg *seg, uint32_t type)
-{
-	seg->selector = 0;
-	seg->attrib = SVM_SELECTOR_P_MASK | type;
-	seg->limit = 0xffff;
-	seg->base = 0;
-}
-
-static void init_vmcb(struct vmcb *vmcb)
-{
-	struct vmcb_control_area *control = &vmcb->control;
-	struct vmcb_save_area *save = &vmcb->save;
-
-	control->intercept_cr_read = 	INTERCEPT_CR0_MASK |
-					INTERCEPT_CR3_MASK |
-					INTERCEPT_CR4_MASK |
-					INTERCEPT_CR8_MASK;
-
-	control->intercept_cr_write = 	INTERCEPT_CR0_MASK |
-					INTERCEPT_CR3_MASK |
-					INTERCEPT_CR4_MASK |
-					INTERCEPT_CR8_MASK;
-
-	control->intercept_dr_read = 	INTERCEPT_DR0_MASK |
-					INTERCEPT_DR1_MASK |
-					INTERCEPT_DR2_MASK |
-					INTERCEPT_DR3_MASK;
-
-	control->intercept_dr_write = 	INTERCEPT_DR0_MASK |
-					INTERCEPT_DR1_MASK |
-					INTERCEPT_DR2_MASK |
-					INTERCEPT_DR3_MASK |
-					INTERCEPT_DR5_MASK |
-					INTERCEPT_DR7_MASK;
-
-	control->intercept_exceptions = (1 << PF_VECTOR) |
-					(1 << UD_VECTOR);
-
-
-	control->intercept = 	(1ULL << INTERCEPT_INTR) |
-				(1ULL << INTERCEPT_NMI) |
-				(1ULL << INTERCEPT_SMI) |
-		/*
-		 * selective cr0 intercept bug?
-		 *    	0:   0f 22 d8                mov    %eax,%cr3
-		 *	3:   0f 20 c0                mov    %cr0,%eax
-		 *	6:   0d 00 00 00 80          or     $0x80000000,%eax
-		 *	b:   0f 22 c0                mov    %eax,%cr0
-		 * set cr3 ->interception
-		 * get cr0 ->interception
-		 * set cr0 -> no interception
-		 */
-		/*              (1ULL << INTERCEPT_SELECTIVE_CR0) | */
-				(1ULL << INTERCEPT_CPUID) |
-				(1ULL << INTERCEPT_INVD) |
-				(1ULL << INTERCEPT_HLT) |
-				(1ULL << INTERCEPT_INVLPGA) |
-				(1ULL << INTERCEPT_IOIO_PROT) |
-				(1ULL << INTERCEPT_MSR_PROT) |
-				(1ULL << INTERCEPT_TASK_SWITCH) |
-				(1ULL << INTERCEPT_SHUTDOWN) |
-				(1ULL << INTERCEPT_VMRUN) |
-				(1ULL << INTERCEPT_VMMCALL) |
-				(1ULL << INTERCEPT_VMLOAD) |
-				(1ULL << INTERCEPT_VMSAVE) |
-				(1ULL << INTERCEPT_STGI) |
-				(1ULL << INTERCEPT_CLGI) |
-				(1ULL << INTERCEPT_SKINIT) |
-				(1ULL << INTERCEPT_WBINVD) |
-				(1ULL << INTERCEPT_MONITOR) |
-				(1ULL << INTERCEPT_MWAIT);
-
-	control->iopm_base_pa = iopm_base;
-	control->msrpm_base_pa = msrpm_base;
-	control->tsc_offset = 0;
-	control->int_ctl = V_INTR_MASKING_MASK;
-
-	init_seg(&save->es);
-	init_seg(&save->ss);
-	init_seg(&save->ds);
-	init_seg(&save->fs);
-	init_seg(&save->gs);
-
-	save->cs.selector = 0xf000;
-	/* Executable/Readable Code Segment */
-	save->cs.attrib = SVM_SELECTOR_READ_MASK | SVM_SELECTOR_P_MASK |
-		SVM_SELECTOR_S_MASK | SVM_SELECTOR_CODE_MASK;
-	save->cs.limit = 0xffff;
-	/*
-	 * cs.base should really be 0xffff0000, but vmx can't handle that, so
-	 * be consistent with it.
-	 *
-	 * Replace when we have real mode working for vmx.
-	 */
-	save->cs.base = 0xf0000;
-
-	save->gdtr.limit = 0xffff;
-	save->idtr.limit = 0xffff;
-
-	init_sys_seg(&save->ldtr, SEG_TYPE_LDT);
-	init_sys_seg(&save->tr, SEG_TYPE_BUSY_TSS16);
-
-	save->efer = MSR_EFER_SVME_MASK;
-	save->dr6 = 0xffff0ff0;
-	save->dr7 = 0x400;
-	save->rflags = 2;
-	save->rip = 0x0000fff0;
-
-	/*
-	 * cr0 val on cpu init should be 0x60000010, we enable cpu
-	 * cache by default. the orderly way is to enable cache in bios.
-	 */
-	save->cr0 = 0x00000010 | X86_CR0_PG | X86_CR0_WP;
-	save->cr4 = X86_CR4_PAE;
-	/* rdx = ?? */
-}
-
-static int svm_vcpu_reset(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	init_vmcb(svm->vmcb);
-
-	if (vcpu->vcpu_id != 0) {
-		svm->vmcb->save.rip = 0;
-		svm->vmcb->save.cs.base = svm->vcpu.arch.sipi_vector << 12;
-		svm->vmcb->save.cs.selector = svm->vcpu.arch.sipi_vector << 8;
-	}
-
-	return 0;
-}
-
-static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
-{
-	struct vcpu_svm *svm;
-	struct page *page;
-	int err;
-
-	svm = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
-	if (!svm) {
-		err = -ENOMEM;
-		goto out;
-	}
-
-	err = kvm_vcpu_init(&svm->vcpu, kvm, id);
-	if (err)
-		goto free_svm;
-
-	page = alloc_page(GFP_KERNEL);
-	if (!page) {
-		err = -ENOMEM;
-		goto uninit;
-	}
-
-	svm->vmcb = page_address(page);
-	clear_page(svm->vmcb);
-	svm->vmcb_pa = page_to_pfn(page) << PAGE_SHIFT;
-	svm->asid_generation = 0;
-	memset(svm->db_regs, 0, sizeof(svm->db_regs));
-	init_vmcb(svm->vmcb);
-
-	fx_init(&svm->vcpu);
-	svm->vcpu.fpu_active = 1;
-	svm->vcpu.arch.apic_base = 0xfee00000 | MSR_IA32_APICBASE_ENABLE;
-	if (svm->vcpu.vcpu_id == 0)
-		svm->vcpu.arch.apic_base |= MSR_IA32_APICBASE_BSP;
-
-	return &svm->vcpu;
-
-uninit:
-	kvm_vcpu_uninit(&svm->vcpu);
-free_svm:
-	kmem_cache_free(kvm_vcpu_cache, svm);
-out:
-	return ERR_PTR(err);
-}
-
-static void svm_free_vcpu(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	__free_page(pfn_to_page(svm->vmcb_pa >> PAGE_SHIFT));
-	kvm_vcpu_uninit(vcpu);
-	kmem_cache_free(kvm_vcpu_cache, svm);
-}
-
-static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-	int i;
-
-	if (unlikely(cpu != vcpu->cpu)) {
-		u64 tsc_this, delta;
-
-		/*
-		 * Make sure that the guest sees a monotonically
-		 * increasing TSC.
-		 */
-		rdtscll(tsc_this);
-		delta = vcpu->arch.host_tsc - tsc_this;
-		svm->vmcb->control.tsc_offset += delta;
-		vcpu->cpu = cpu;
-		kvm_migrate_apic_timer(vcpu);
-	}
-
-	for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++)
-		rdmsrl(host_save_user_msrs[i], svm->host_user_msrs[i]);
-}
-
-static void svm_vcpu_put(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-	int i;
-
-	++vcpu->stat.host_state_reload;
-	for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++)
-		wrmsrl(host_save_user_msrs[i], svm->host_user_msrs[i]);
-
-	rdtscll(vcpu->arch.host_tsc);
-}
-
-static void svm_vcpu_decache(struct kvm_vcpu *vcpu)
-{
-}
-
-static void svm_cache_regs(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	vcpu->arch.regs[VCPU_REGS_RAX] = svm->vmcb->save.rax;
-	vcpu->arch.regs[VCPU_REGS_RSP] = svm->vmcb->save.rsp;
-	vcpu->arch.rip = svm->vmcb->save.rip;
-}
-
-static void svm_decache_regs(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-	svm->vmcb->save.rax = vcpu->arch.regs[VCPU_REGS_RAX];
-	svm->vmcb->save.rsp = vcpu->arch.regs[VCPU_REGS_RSP];
-	svm->vmcb->save.rip = vcpu->arch.rip;
-}
-
-static unsigned long svm_get_rflags(struct kvm_vcpu *vcpu)
-{
-	return to_svm(vcpu)->vmcb->save.rflags;
-}
-
-static void svm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
-{
-	to_svm(vcpu)->vmcb->save.rflags = rflags;
-}
-
-static struct vmcb_seg *svm_seg(struct kvm_vcpu *vcpu, int seg)
-{
-	struct vmcb_save_area *save = &to_svm(vcpu)->vmcb->save;
-
-	switch (seg) {
-	case VCPU_SREG_CS: return &save->cs;
-	case VCPU_SREG_DS: return &save->ds;
-	case VCPU_SREG_ES: return &save->es;
-	case VCPU_SREG_FS: return &save->fs;
-	case VCPU_SREG_GS: return &save->gs;
-	case VCPU_SREG_SS: return &save->ss;
-	case VCPU_SREG_TR: return &save->tr;
-	case VCPU_SREG_LDTR: return &save->ldtr;
-	}
-	BUG();
-	return NULL;
-}
-
-static u64 svm_get_segment_base(struct kvm_vcpu *vcpu, int seg)
-{
-	struct vmcb_seg *s = svm_seg(vcpu, seg);
-
-	return s->base;
-}
-
-static void svm_get_segment(struct kvm_vcpu *vcpu,
-			    struct kvm_segment *var, int seg)
-{
-	struct vmcb_seg *s = svm_seg(vcpu, seg);
-
-	var->base = s->base;
-	var->limit = s->limit;
-	var->selector = s->selector;
-	var->type = s->attrib & SVM_SELECTOR_TYPE_MASK;
-	var->s = (s->attrib >> SVM_SELECTOR_S_SHIFT) & 1;
-	var->dpl = (s->attrib >> SVM_SELECTOR_DPL_SHIFT) & 3;
-	var->present = (s->attrib >> SVM_SELECTOR_P_SHIFT) & 1;
-	var->avl = (s->attrib >> SVM_SELECTOR_AVL_SHIFT) & 1;
-	var->l = (s->attrib >> SVM_SELECTOR_L_SHIFT) & 1;
-	var->db = (s->attrib >> SVM_SELECTOR_DB_SHIFT) & 1;
-	var->g = (s->attrib >> SVM_SELECTOR_G_SHIFT) & 1;
-	var->unusable = !var->present;
-}
-
-static void svm_get_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	dt->limit = svm->vmcb->save.idtr.limit;
-	dt->base = svm->vmcb->save.idtr.base;
-}
-
-static void svm_set_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	svm->vmcb->save.idtr.limit = dt->limit;
-	svm->vmcb->save.idtr.base = dt->base ;
-}
-
-static void svm_get_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	dt->limit = svm->vmcb->save.gdtr.limit;
-	dt->base = svm->vmcb->save.gdtr.base;
-}
-
-static void svm_set_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	svm->vmcb->save.gdtr.limit = dt->limit;
-	svm->vmcb->save.gdtr.base = dt->base ;
-}
-
-static void svm_decache_cr4_guest_bits(struct kvm_vcpu *vcpu)
-{
-}
-
-static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-#ifdef CONFIG_X86_64
-	if (vcpu->arch.shadow_efer & EFER_LME) {
-		if (!is_paging(vcpu) && (cr0 & X86_CR0_PG)) {
-			vcpu->arch.shadow_efer |= EFER_LMA;
-			svm->vmcb->save.efer |= EFER_LMA | EFER_LME;
-		}
-
-		if (is_paging(vcpu) && !(cr0 & X86_CR0_PG)) {
-			vcpu->arch.shadow_efer &= ~EFER_LMA;
-			svm->vmcb->save.efer &= ~(EFER_LMA | EFER_LME);
-		}
-	}
-#endif
-	if ((vcpu->arch.cr0 & X86_CR0_TS) && !(cr0 & X86_CR0_TS)) {
-		svm->vmcb->control.intercept_exceptions &= ~(1 << NM_VECTOR);
-		vcpu->fpu_active = 1;
-	}
-
-	vcpu->arch.cr0 = cr0;
-	cr0 |= X86_CR0_PG | X86_CR0_WP;
-	cr0 &= ~(X86_CR0_CD | X86_CR0_NW);
-	svm->vmcb->save.cr0 = cr0;
-}
-
-static void svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
-{
-       vcpu->arch.cr4 = cr4;
-       to_svm(vcpu)->vmcb->save.cr4 = cr4 | X86_CR4_PAE;
-}
-
-static void svm_set_segment(struct kvm_vcpu *vcpu,
-			    struct kvm_segment *var, int seg)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-	struct vmcb_seg *s = svm_seg(vcpu, seg);
-
-	s->base = var->base;
-	s->limit = var->limit;
-	s->selector = var->selector;
-	if (var->unusable)
-		s->attrib = 0;
-	else {
-		s->attrib = (var->type & SVM_SELECTOR_TYPE_MASK);
-		s->attrib |= (var->s & 1) << SVM_SELECTOR_S_SHIFT;
-		s->attrib |= (var->dpl & 3) << SVM_SELECTOR_DPL_SHIFT;
-		s->attrib |= (var->present & 1) << SVM_SELECTOR_P_SHIFT;
-		s->attrib |= (var->avl & 1) << SVM_SELECTOR_AVL_SHIFT;
-		s->attrib |= (var->l & 1) << SVM_SELECTOR_L_SHIFT;
-		s->attrib |= (var->db & 1) << SVM_SELECTOR_DB_SHIFT;
-		s->attrib |= (var->g & 1) << SVM_SELECTOR_G_SHIFT;
-	}
-	if (seg == VCPU_SREG_CS)
-		svm->vmcb->save.cpl
-			= (svm->vmcb->save.cs.attrib
-			   >> SVM_SELECTOR_DPL_SHIFT) & 3;
-
-}
-
-/* FIXME:
-
-	svm(vcpu)->vmcb->control.int_ctl &= ~V_TPR_MASK;
-	svm(vcpu)->vmcb->control.int_ctl |= (sregs->cr8 & V_TPR_MASK);
-
-*/
-
-static int svm_guest_debug(struct kvm_vcpu *vcpu, struct kvm_debug_guest *dbg)
-{
-	return -EOPNOTSUPP;
-}
-
-static int svm_get_irq(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-	u32 exit_int_info = svm->vmcb->control.exit_int_info;
-
-	if (is_external_interrupt(exit_int_info))
-		return exit_int_info & SVM_EVTINJ_VEC_MASK;
-	return -1;
-}
-
-static void load_host_msrs(struct kvm_vcpu *vcpu)
-{
-#ifdef CONFIG_X86_64
-	wrmsrl(MSR_GS_BASE, to_svm(vcpu)->host_gs_base);
-#endif
-}
-
-static void save_host_msrs(struct kvm_vcpu *vcpu)
-{
-#ifdef CONFIG_X86_64
-	rdmsrl(MSR_GS_BASE, to_svm(vcpu)->host_gs_base);
-#endif
-}
-
-static void new_asid(struct vcpu_svm *svm, struct svm_cpu_data *svm_data)
-{
-	if (svm_data->next_asid > svm_data->max_asid) {
-		++svm_data->asid_generation;
-		svm_data->next_asid = 1;
-		svm->vmcb->control.tlb_ctl = TLB_CONTROL_FLUSH_ALL_ASID;
-	}
-
-	svm->vcpu.cpu = svm_data->cpu;
-	svm->asid_generation = svm_data->asid_generation;
-	svm->vmcb->control.asid = svm_data->next_asid++;
-}
-
-static unsigned long svm_get_dr(struct kvm_vcpu *vcpu, int dr)
-{
-	return to_svm(vcpu)->db_regs[dr];
-}
-
-static void svm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long value,
-		       int *exception)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	*exception = 0;
-
-	if (svm->vmcb->save.dr7 & DR7_GD_MASK) {
-		svm->vmcb->save.dr7 &= ~DR7_GD_MASK;
-		svm->vmcb->save.dr6 |= DR6_BD_MASK;
-		*exception = DB_VECTOR;
-		return;
-	}
-
-	switch (dr) {
-	case 0 ... 3:
-		svm->db_regs[dr] = value;
-		return;
-	case 4 ... 5:
-		if (vcpu->arch.cr4 & X86_CR4_DE) {
-			*exception = UD_VECTOR;
-			return;
-		}
-	case 7: {
-		if (value & ~((1ULL << 32) - 1)) {
-			*exception = GP_VECTOR;
-			return;
-		}
-		svm->vmcb->save.dr7 = value;
-		return;
-	}
-	default:
-		printk(KERN_DEBUG "%s: unexpected dr %u\n",
-		       __FUNCTION__, dr);
-		*exception = UD_VECTOR;
-		return;
-	}
-}
-
-static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	u32 exit_int_info = svm->vmcb->control.exit_int_info;
-	struct kvm *kvm = svm->vcpu.kvm;
-	u64 fault_address;
-	u32 error_code;
-
-	if (!irqchip_in_kernel(kvm) &&
-		is_external_interrupt(exit_int_info))
-		push_irq(&svm->vcpu, exit_int_info & SVM_EVTINJ_VEC_MASK);
-
-	fault_address  = svm->vmcb->control.exit_info_2;
-	error_code = svm->vmcb->control.exit_info_1;
-	return kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code);
-}
-
-static int ud_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	int er;
-
-	er = emulate_instruction(&svm->vcpu, kvm_run, 0, 0, 0);
-	if (er != EMULATE_DONE)
-		kvm_queue_exception(&svm->vcpu, UD_VECTOR);
-	return 1;
-}
-
-static int nm_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	svm->vmcb->control.intercept_exceptions &= ~(1 << NM_VECTOR);
-	if (!(svm->vcpu.arch.cr0 & X86_CR0_TS))
-		svm->vmcb->save.cr0 &= ~X86_CR0_TS;
-	svm->vcpu.fpu_active = 1;
-
-	return 1;
-}
-
-static int shutdown_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	/*
-	 * VMCB is undefined after a SHUTDOWN intercept
-	 * so reinitialize it.
-	 */
-	clear_page(svm->vmcb);
-	init_vmcb(svm->vmcb);
-
-	kvm_run->exit_reason = KVM_EXIT_SHUTDOWN;
-	return 0;
-}
-
-static int io_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	u32 io_info = svm->vmcb->control.exit_info_1; /* address size bug? */
-	int size, down, in, string, rep;
-	unsigned port;
-
-	++svm->vcpu.stat.io_exits;
-
-	svm->next_rip = svm->vmcb->control.exit_info_2;
-
-	string = (io_info & SVM_IOIO_STR_MASK) != 0;
-
-	if (string) {
-		if (emulate_instruction(&svm->vcpu,
-					kvm_run, 0, 0, 0) == EMULATE_DO_MMIO)
-			return 0;
-		return 1;
-	}
-
-	in = (io_info & SVM_IOIO_TYPE_MASK) != 0;
-	port = io_info >> 16;
-	size = (io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT;
-	rep = (io_info & SVM_IOIO_REP_MASK) != 0;
-	down = (svm->vmcb->save.rflags & X86_EFLAGS_DF) != 0;
-
-	return kvm_emulate_pio(&svm->vcpu, kvm_run, in, size, port);
-}
-
-static int nop_on_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	return 1;
-}
-
-static int halt_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	svm->next_rip = svm->vmcb->save.rip + 1;
-	skip_emulated_instruction(&svm->vcpu);
-	return kvm_emulate_halt(&svm->vcpu);
-}
-
-static int vmmcall_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	svm->next_rip = svm->vmcb->save.rip + 3;
-	skip_emulated_instruction(&svm->vcpu);
-	kvm_emulate_hypercall(&svm->vcpu);
-	return 1;
-}
-
-static int invalid_op_interception(struct vcpu_svm *svm,
-				   struct kvm_run *kvm_run)
-{
-	kvm_queue_exception(&svm->vcpu, UD_VECTOR);
-	return 1;
-}
-
-static int task_switch_interception(struct vcpu_svm *svm,
-				    struct kvm_run *kvm_run)
-{
-	pr_unimpl(&svm->vcpu, "%s: task switch is unsupported\n", __FUNCTION__);
-	kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
-	return 0;
-}
-
-static int cpuid_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	svm->next_rip = svm->vmcb->save.rip + 2;
-	kvm_emulate_cpuid(&svm->vcpu);
-	return 1;
-}
-
-static int emulate_on_interception(struct vcpu_svm *svm,
-				   struct kvm_run *kvm_run)
-{
-	if (emulate_instruction(&svm->vcpu, NULL, 0, 0, 0) != EMULATE_DONE)
-		pr_unimpl(&svm->vcpu, "%s: failed\n", __FUNCTION__);
-	return 1;
-}
-
-static int cr8_write_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	emulate_instruction(&svm->vcpu, NULL, 0, 0, 0);
-	if (irqchip_in_kernel(svm->vcpu.kvm))
-		return 1;
-	kvm_run->exit_reason = KVM_EXIT_SET_TPR;
-	return 0;
-}
-
-static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	switch (ecx) {
-	case MSR_IA32_TIME_STAMP_COUNTER: {
-		u64 tsc;
-
-		rdtscll(tsc);
-		*data = svm->vmcb->control.tsc_offset + tsc;
-		break;
-	}
-	case MSR_K6_STAR:
-		*data = svm->vmcb->save.star;
-		break;
-#ifdef CONFIG_X86_64
-	case MSR_LSTAR:
-		*data = svm->vmcb->save.lstar;
-		break;
-	case MSR_CSTAR:
-		*data = svm->vmcb->save.cstar;
-		break;
-	case MSR_KERNEL_GS_BASE:
-		*data = svm->vmcb->save.kernel_gs_base;
-		break;
-	case MSR_SYSCALL_MASK:
-		*data = svm->vmcb->save.sfmask;
-		break;
-#endif
-	case MSR_IA32_SYSENTER_CS:
-		*data = svm->vmcb->save.sysenter_cs;
-		break;
-	case MSR_IA32_SYSENTER_EIP:
-		*data = svm->vmcb->save.sysenter_eip;
-		break;
-	case MSR_IA32_SYSENTER_ESP:
-		*data = svm->vmcb->save.sysenter_esp;
-		break;
-	default:
-		return kvm_get_msr_common(vcpu, ecx, data);
-	}
-	return 0;
-}
-
-static int rdmsr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	u32 ecx = svm->vcpu.arch.regs[VCPU_REGS_RCX];
-	u64 data;
-
-	if (svm_get_msr(&svm->vcpu, ecx, &data))
-		kvm_inject_gp(&svm->vcpu, 0);
-	else {
-		svm->vmcb->save.rax = data & 0xffffffff;
-		svm->vcpu.arch.regs[VCPU_REGS_RDX] = data >> 32;
-		svm->next_rip = svm->vmcb->save.rip + 2;
-		skip_emulated_instruction(&svm->vcpu);
-	}
-	return 1;
-}
-
-static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	switch (ecx) {
-	case MSR_IA32_TIME_STAMP_COUNTER: {
-		u64 tsc;
-
-		rdtscll(tsc);
-		svm->vmcb->control.tsc_offset = data - tsc;
-		break;
-	}
-	case MSR_K6_STAR:
-		svm->vmcb->save.star = data;
-		break;
-#ifdef CONFIG_X86_64
-	case MSR_LSTAR:
-		svm->vmcb->save.lstar = data;
-		break;
-	case MSR_CSTAR:
-		svm->vmcb->save.cstar = data;
-		break;
-	case MSR_KERNEL_GS_BASE:
-		svm->vmcb->save.kernel_gs_base = data;
-		break;
-	case MSR_SYSCALL_MASK:
-		svm->vmcb->save.sfmask = data;
-		break;
-#endif
-	case MSR_IA32_SYSENTER_CS:
-		svm->vmcb->save.sysenter_cs = data;
-		break;
-	case MSR_IA32_SYSENTER_EIP:
-		svm->vmcb->save.sysenter_eip = data;
-		break;
-	case MSR_IA32_SYSENTER_ESP:
-		svm->vmcb->save.sysenter_esp = data;
-		break;
-	case MSR_K7_EVNTSEL0:
-	case MSR_K7_EVNTSEL1:
-	case MSR_K7_EVNTSEL2:
-	case MSR_K7_EVNTSEL3:
-		/*
-		 * only support writing 0 to the performance counters for now
-		 * to make Windows happy. Should be replaced by a real
-		 * performance counter emulation later.
-		 */
-		if (data != 0)
-			goto unhandled;
-		break;
-	default:
-	unhandled:
-		return kvm_set_msr_common(vcpu, ecx, data);
-	}
-	return 0;
-}
-
-static int wrmsr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	u32 ecx = svm->vcpu.arch.regs[VCPU_REGS_RCX];
-	u64 data = (svm->vmcb->save.rax & -1u)
-		| ((u64)(svm->vcpu.arch.regs[VCPU_REGS_RDX] & -1u) << 32);
-	svm->next_rip = svm->vmcb->save.rip + 2;
-	if (svm_set_msr(&svm->vcpu, ecx, data))
-		kvm_inject_gp(&svm->vcpu, 0);
-	else
-		skip_emulated_instruction(&svm->vcpu);
-	return 1;
-}
-
-static int msr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
-{
-	if (svm->vmcb->control.exit_info_1)
-		return wrmsr_interception(svm, kvm_run);
-	else
-		return rdmsr_interception(svm, kvm_run);
-}
-
-static int interrupt_window_interception(struct vcpu_svm *svm,
-				   struct kvm_run *kvm_run)
-{
-	svm->vmcb->control.intercept &= ~(1ULL << INTERCEPT_VINTR);
-	svm->vmcb->control.int_ctl &= ~V_IRQ_MASK;
-	/*
-	 * If the user space waits to inject interrupts, exit as soon as
-	 * possible
-	 */
-	if (kvm_run->request_interrupt_window &&
-	    !svm->vcpu.arch.irq_summary) {
-		++svm->vcpu.stat.irq_window_exits;
-		kvm_run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN;
-		return 0;
-	}
-
-	return 1;
-}
-
-static int (*svm_exit_handlers[])(struct vcpu_svm *svm,
-				      struct kvm_run *kvm_run) = {
-	[SVM_EXIT_READ_CR0]           		= emulate_on_interception,
-	[SVM_EXIT_READ_CR3]           		= emulate_on_interception,
-	[SVM_EXIT_READ_CR4]           		= emulate_on_interception,
-	[SVM_EXIT_READ_CR8]           		= emulate_on_interception,
-	/* for now: */
-	[SVM_EXIT_WRITE_CR0]          		= emulate_on_interception,
-	[SVM_EXIT_WRITE_CR3]          		= emulate_on_interception,
-	[SVM_EXIT_WRITE_CR4]          		= emulate_on_interception,
-	[SVM_EXIT_WRITE_CR8]          		= cr8_write_interception,
-	[SVM_EXIT_READ_DR0] 			= emulate_on_interception,
-	[SVM_EXIT_READ_DR1]			= emulate_on_interception,
-	[SVM_EXIT_READ_DR2]			= emulate_on_interception,
-	[SVM_EXIT_READ_DR3]			= emulate_on_interception,
-	[SVM_EXIT_WRITE_DR0]			= emulate_on_interception,
-	[SVM_EXIT_WRITE_DR1]			= emulate_on_interception,
-	[SVM_EXIT_WRITE_DR2]			= emulate_on_interception,
-	[SVM_EXIT_WRITE_DR3]			= emulate_on_interception,
-	[SVM_EXIT_WRITE_DR5]			= emulate_on_interception,
-	[SVM_EXIT_WRITE_DR7]			= emulate_on_interception,
-	[SVM_EXIT_EXCP_BASE + UD_VECTOR]	= ud_interception,
-	[SVM_EXIT_EXCP_BASE + PF_VECTOR] 	= pf_interception,
-	[SVM_EXIT_EXCP_BASE + NM_VECTOR] 	= nm_interception,
-	[SVM_EXIT_INTR] 			= nop_on_interception,
-	[SVM_EXIT_NMI]				= nop_on_interception,
-	[SVM_EXIT_SMI]				= nop_on_interception,
-	[SVM_EXIT_INIT]				= nop_on_interception,
-	[SVM_EXIT_VINTR]			= interrupt_window_interception,
-	/* [SVM_EXIT_CR0_SEL_WRITE]		= emulate_on_interception, */
-	[SVM_EXIT_CPUID]			= cpuid_interception,
-	[SVM_EXIT_INVD]                         = emulate_on_interception,
-	[SVM_EXIT_HLT]				= halt_interception,
-	[SVM_EXIT_INVLPG]			= emulate_on_interception,
-	[SVM_EXIT_INVLPGA]			= invalid_op_interception,
-	[SVM_EXIT_IOIO] 		  	= io_interception,
-	[SVM_EXIT_MSR]				= msr_interception,
-	[SVM_EXIT_TASK_SWITCH]			= task_switch_interception,
-	[SVM_EXIT_SHUTDOWN]			= shutdown_interception,
-	[SVM_EXIT_VMRUN]			= invalid_op_interception,
-	[SVM_EXIT_VMMCALL]			= vmmcall_interception,
-	[SVM_EXIT_VMLOAD]			= invalid_op_interception,
-	[SVM_EXIT_VMSAVE]			= invalid_op_interception,
-	[SVM_EXIT_STGI]				= invalid_op_interception,
-	[SVM_EXIT_CLGI]				= invalid_op_interception,
-	[SVM_EXIT_SKINIT]			= invalid_op_interception,
-	[SVM_EXIT_WBINVD]                       = emulate_on_interception,
-	[SVM_EXIT_MONITOR]			= invalid_op_interception,
-	[SVM_EXIT_MWAIT]			= invalid_op_interception,
-};
-
-
-static int handle_exit(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-	u32 exit_code = svm->vmcb->control.exit_code;
-
-	kvm_reput_irq(svm);
-
-	if (svm->vmcb->control.exit_code == SVM_EXIT_ERR) {
-		kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY;
-		kvm_run->fail_entry.hardware_entry_failure_reason
-			= svm->vmcb->control.exit_code;
-		return 0;
-	}
-
-	if (is_external_interrupt(svm->vmcb->control.exit_int_info) &&
-	    exit_code != SVM_EXIT_EXCP_BASE + PF_VECTOR)
-		printk(KERN_ERR "%s: unexpected exit_ini_info 0x%x "
-		       "exit_code 0x%x\n",
-		       __FUNCTION__, svm->vmcb->control.exit_int_info,
-		       exit_code);
-
-	if (exit_code >= ARRAY_SIZE(svm_exit_handlers)
-	    || !svm_exit_handlers[exit_code]) {
-		kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
-		kvm_run->hw.hardware_exit_reason = exit_code;
-		return 0;
-	}
-
-	return svm_exit_handlers[exit_code](svm, kvm_run);
-}
-
-static void reload_tss(struct kvm_vcpu *vcpu)
-{
-	int cpu = raw_smp_processor_id();
-
-	struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu);
-	svm_data->tss_desc->type = 9; /* available 32/64-bit TSS */
-	load_TR_desc();
-}
-
-static void pre_svm_run(struct vcpu_svm *svm)
-{
-	int cpu = raw_smp_processor_id();
-
-	struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu);
-
-	svm->vmcb->control.tlb_ctl = TLB_CONTROL_DO_NOTHING;
-	if (svm->vcpu.cpu != cpu ||
-	    svm->asid_generation != svm_data->asid_generation)
-		new_asid(svm, svm_data);
-}
-
-
-static inline void svm_inject_irq(struct vcpu_svm *svm, int irq)
-{
-	struct vmcb_control_area *control;
-
-	control = &svm->vmcb->control;
-	control->int_vector = irq;
-	control->int_ctl &= ~V_INTR_PRIO_MASK;
-	control->int_ctl |= V_IRQ_MASK |
-		((/*control->int_vector >> 4*/ 0xf) << V_INTR_PRIO_SHIFT);
-}
-
-static void svm_set_irq(struct kvm_vcpu *vcpu, int irq)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	svm_inject_irq(svm, irq);
-}
-
-static void svm_intr_assist(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-	struct vmcb *vmcb = svm->vmcb;
-	int intr_vector = -1;
-
-	if ((vmcb->control.exit_int_info & SVM_EVTINJ_VALID) &&
-	    ((vmcb->control.exit_int_info & SVM_EVTINJ_TYPE_MASK) == 0)) {
-		intr_vector = vmcb->control.exit_int_info &
-			      SVM_EVTINJ_VEC_MASK;
-		vmcb->control.exit_int_info = 0;
-		svm_inject_irq(svm, intr_vector);
-		return;
-	}
-
-	if (vmcb->control.int_ctl & V_IRQ_MASK)
-		return;
-
-	if (!kvm_cpu_has_interrupt(vcpu))
-		return;
-
-	if (!(vmcb->save.rflags & X86_EFLAGS_IF) ||
-	    (vmcb->control.int_state & SVM_INTERRUPT_SHADOW_MASK) ||
-	    (vmcb->control.event_inj & SVM_EVTINJ_VALID)) {
-		/* unable to deliver irq, set pending irq */
-		vmcb->control.intercept |= (1ULL << INTERCEPT_VINTR);
-		svm_inject_irq(svm, 0x0);
-		return;
-	}
-	/* Okay, we can deliver the interrupt: grab it and update PIC state. */
-	intr_vector = kvm_cpu_get_interrupt(vcpu);
-	svm_inject_irq(svm, intr_vector);
-	kvm_timer_intr_post(vcpu, intr_vector);
-}
-
-static void kvm_reput_irq(struct vcpu_svm *svm)
-{
-	struct vmcb_control_area *control = &svm->vmcb->control;
-
-	if ((control->int_ctl & V_IRQ_MASK)
-	    && !irqchip_in_kernel(svm->vcpu.kvm)) {
-		control->int_ctl &= ~V_IRQ_MASK;
-		push_irq(&svm->vcpu, control->int_vector);
-	}
-
-	svm->vcpu.arch.interrupt_window_open =
-		!(control->int_state & SVM_INTERRUPT_SHADOW_MASK);
-}
-
-static void svm_do_inject_vector(struct vcpu_svm *svm)
-{
-	struct kvm_vcpu *vcpu = &svm->vcpu;
-	int word_index = __ffs(vcpu->arch.irq_summary);
-	int bit_index = __ffs(vcpu->arch.irq_pending[word_index]);
-	int irq = word_index * BITS_PER_LONG + bit_index;
-
-	clear_bit(bit_index, &vcpu->arch.irq_pending[word_index]);
-	if (!vcpu->arch.irq_pending[word_index])
-		clear_bit(word_index, &vcpu->arch.irq_summary);
-	svm_inject_irq(svm, irq);
-}
-
-static void do_interrupt_requests(struct kvm_vcpu *vcpu,
-				       struct kvm_run *kvm_run)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-	struct vmcb_control_area *control = &svm->vmcb->control;
-
-	svm->vcpu.arch.interrupt_window_open =
-		(!(control->int_state & SVM_INTERRUPT_SHADOW_MASK) &&
-		 (svm->vmcb->save.rflags & X86_EFLAGS_IF));
-
-	if (svm->vcpu.arch.interrupt_window_open && svm->vcpu.arch.irq_summary)
-		/*
-		 * If interrupts enabled, and not blocked by sti or mov ss. Good.
-		 */
-		svm_do_inject_vector(svm);
-
-	/*
-	 * Interrupts blocked.  Wait for unblock.
-	 */
-	if (!svm->vcpu.arch.interrupt_window_open &&
-	    (svm->vcpu.arch.irq_summary || kvm_run->request_interrupt_window))
-		control->intercept |= 1ULL << INTERCEPT_VINTR;
-	 else
-		control->intercept &= ~(1ULL << INTERCEPT_VINTR);
-}
-
-static int svm_set_tss_addr(struct kvm *kvm, unsigned int addr)
-{
-	return 0;
-}
-
-static void save_db_regs(unsigned long *db_regs)
-{
-	asm volatile ("mov %%dr0, %0" : "=r"(db_regs[0]));
-	asm volatile ("mov %%dr1, %0" : "=r"(db_regs[1]));
-	asm volatile ("mov %%dr2, %0" : "=r"(db_regs[2]));
-	asm volatile ("mov %%dr3, %0" : "=r"(db_regs[3]));
-}
-
-static void load_db_regs(unsigned long *db_regs)
-{
-	asm volatile ("mov %0, %%dr0" : : "r"(db_regs[0]));
-	asm volatile ("mov %0, %%dr1" : : "r"(db_regs[1]));
-	asm volatile ("mov %0, %%dr2" : : "r"(db_regs[2]));
-	asm volatile ("mov %0, %%dr3" : : "r"(db_regs[3]));
-}
-
-static void svm_flush_tlb(struct kvm_vcpu *vcpu)
-{
-	force_new_asid(vcpu);
-}
-
-static void svm_prepare_guest_switch(struct kvm_vcpu *vcpu)
-{
-}
-
-static void svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-	u16 fs_selector;
-	u16 gs_selector;
-	u16 ldt_selector;
-
-	pre_svm_run(svm);
-
-	save_host_msrs(vcpu);
-	fs_selector = read_fs();
-	gs_selector = read_gs();
-	ldt_selector = read_ldt();
-	svm->host_cr2 = kvm_read_cr2();
-	svm->host_dr6 = read_dr6();
-	svm->host_dr7 = read_dr7();
-	svm->vmcb->save.cr2 = vcpu->arch.cr2;
-
-	if (svm->vmcb->save.dr7 & 0xff) {
-		write_dr7(0);
-		save_db_regs(svm->host_db_regs);
-		load_db_regs(svm->db_regs);
-	}
-
-	clgi();
-
-	local_irq_enable();
-
-	asm volatile (
-#ifdef CONFIG_X86_64
-		"push %%rbp; \n\t"
-#else
-		"push %%ebp; \n\t"
-#endif
-
-#ifdef CONFIG_X86_64
-		"mov %c[rbx](%[svm]), %%rbx \n\t"
-		"mov %c[rcx](%[svm]), %%rcx \n\t"
-		"mov %c[rdx](%[svm]), %%rdx \n\t"
-		"mov %c[rsi](%[svm]), %%rsi \n\t"
-		"mov %c[rdi](%[svm]), %%rdi \n\t"
-		"mov %c[rbp](%[svm]), %%rbp \n\t"
-		"mov %c[r8](%[svm]),  %%r8  \n\t"
-		"mov %c[r9](%[svm]),  %%r9  \n\t"
-		"mov %c[r10](%[svm]), %%r10 \n\t"
-		"mov %c[r11](%[svm]), %%r11 \n\t"
-		"mov %c[r12](%[svm]), %%r12 \n\t"
-		"mov %c[r13](%[svm]), %%r13 \n\t"
-		"mov %c[r14](%[svm]), %%r14 \n\t"
-		"mov %c[r15](%[svm]), %%r15 \n\t"
-#else
-		"mov %c[rbx](%[svm]), %%ebx \n\t"
-		"mov %c[rcx](%[svm]), %%ecx \n\t"
-		"mov %c[rdx](%[svm]), %%edx \n\t"
-		"mov %c[rsi](%[svm]), %%esi \n\t"
-		"mov %c[rdi](%[svm]), %%edi \n\t"
-		"mov %c[rbp](%[svm]), %%ebp \n\t"
-#endif
-
-#ifdef CONFIG_X86_64
-		/* Enter guest mode */
-		"push %%rax \n\t"
-		"mov %c[vmcb](%[svm]), %%rax \n\t"
-		SVM_VMLOAD "\n\t"
-		SVM_VMRUN "\n\t"
-		SVM_VMSAVE "\n\t"
-		"pop %%rax \n\t"
-#else
-		/* Enter guest mode */
-		"push %%eax \n\t"
-		"mov %c[vmcb](%[svm]), %%eax \n\t"
-		SVM_VMLOAD "\n\t"
-		SVM_VMRUN "\n\t"
-		SVM_VMSAVE "\n\t"
-		"pop %%eax \n\t"
-#endif
-
-		/* Save guest registers, load host registers */
-#ifdef CONFIG_X86_64
-		"mov %%rbx, %c[rbx](%[svm]) \n\t"
-		"mov %%rcx, %c[rcx](%[svm]) \n\t"
-		"mov %%rdx, %c[rdx](%[svm]) \n\t"
-		"mov %%rsi, %c[rsi](%[svm]) \n\t"
-		"mov %%rdi, %c[rdi](%[svm]) \n\t"
-		"mov %%rbp, %c[rbp](%[svm]) \n\t"
-		"mov %%r8,  %c[r8](%[svm]) \n\t"
-		"mov %%r9,  %c[r9](%[svm]) \n\t"
-		"mov %%r10, %c[r10](%[svm]) \n\t"
-		"mov %%r11, %c[r11](%[svm]) \n\t"
-		"mov %%r12, %c[r12](%[svm]) \n\t"
-		"mov %%r13, %c[r13](%[svm]) \n\t"
-		"mov %%r14, %c[r14](%[svm]) \n\t"
-		"mov %%r15, %c[r15](%[svm]) \n\t"
-
-		"pop  %%rbp; \n\t"
-#else
-		"mov %%ebx, %c[rbx](%[svm]) \n\t"
-		"mov %%ecx, %c[rcx](%[svm]) \n\t"
-		"mov %%edx, %c[rdx](%[svm]) \n\t"
-		"mov %%esi, %c[rsi](%[svm]) \n\t"
-		"mov %%edi, %c[rdi](%[svm]) \n\t"
-		"mov %%ebp, %c[rbp](%[svm]) \n\t"
-
-		"pop  %%ebp; \n\t"
-#endif
-		:
-		: [svm]"a"(svm),
-		  [vmcb]"i"(offsetof(struct vcpu_svm, vmcb_pa)),
-		  [rbx]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RBX])),
-		  [rcx]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RCX])),
-		  [rdx]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RDX])),
-		  [rsi]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RSI])),
-		  [rdi]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RDI])),
-		  [rbp]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RBP]))
-#ifdef CONFIG_X86_64
-		  , [r8]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R8])),
-		  [r9]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R9])),
-		  [r10]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R10])),
-		  [r11]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R11])),
-		  [r12]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R12])),
-		  [r13]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R13])),
-		  [r14]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R14])),
-		  [r15]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R15]))
-#endif
-		: "cc", "memory"
-#ifdef CONFIG_X86_64
-		, "rbx", "rcx", "rdx", "rsi", "rdi"
-		, "r8", "r9", "r10", "r11" , "r12", "r13", "r14", "r15"
-#else
-		, "ebx", "ecx", "edx" , "esi", "edi"
-#endif
-		);
-
-	if ((svm->vmcb->save.dr7 & 0xff))
-		load_db_regs(svm->host_db_regs);
-
-	vcpu->arch.cr2 = svm->vmcb->save.cr2;
-
-	write_dr6(svm->host_dr6);
-	write_dr7(svm->host_dr7);
-	kvm_write_cr2(svm->host_cr2);
-
-	load_fs(fs_selector);
-	load_gs(gs_selector);
-	load_ldt(ldt_selector);
-	load_host_msrs(vcpu);
-
-	reload_tss(vcpu);
-
-	local_irq_disable();
-
-	stgi();
-
-	svm->next_rip = 0;
-}
-
-static void svm_set_cr3(struct kvm_vcpu *vcpu, unsigned long root)
-{
-	struct vcpu_svm *svm = to_svm(vcpu);
-
-	svm->vmcb->save.cr3 = root;
-	force_new_asid(vcpu);
-
-	if (vcpu->fpu_active) {
-		svm->vmcb->control.intercept_exceptions |= (1 << NM_VECTOR);
-		svm->vmcb->save.cr0 |= X86_CR0_TS;
-		vcpu->fpu_active = 0;
-	}
-}
-
-static int is_disabled(void)
-{
-	u64 vm_cr;
-
-	rdmsrl(MSR_VM_CR, vm_cr);
-	if (vm_cr & (1 << SVM_VM_CR_SVM_DISABLE))
-		return 1;
-
-	return 0;
-}
-
-static void
-svm_patch_hypercall(struct kvm_vcpu *vcpu, unsigned char *hypercall)
-{
-	/*
-	 * Patch in the VMMCALL instruction:
-	 */
-	hypercall[0] = 0x0f;
-	hypercall[1] = 0x01;
-	hypercall[2] = 0xd9;
-}
-
-static void svm_check_processor_compat(void *rtn)
-{
-	*(int *)rtn = 0;
-}
-
-static struct kvm_x86_ops svm_x86_ops = {
-	.cpu_has_kvm_support = has_svm,
-	.disabled_by_bios = is_disabled,
-	.hardware_setup = svm_hardware_setup,
-	.hardware_unsetup = svm_hardware_unsetup,
-	.check_processor_compatibility = svm_check_processor_compat,
-	.hardware_enable = svm_hardware_enable,
-	.hardware_disable = svm_hardware_disable,
-
-	.vcpu_create = svm_create_vcpu,
-	.vcpu_free = svm_free_vcpu,
-	.vcpu_reset = svm_vcpu_reset,
-
-	.prepare_guest_switch = svm_prepare_guest_switch,
-	.vcpu_load = svm_vcpu_load,
-	.vcpu_put = svm_vcpu_put,
-	.vcpu_decache = svm_vcpu_decache,
-
-	.set_guest_debug = svm_guest_debug,
-	.get_msr = svm_get_msr,
-	.set_msr = svm_set_msr,
-	.get_segment_base = svm_get_segment_base,
-	.get_segment = svm_get_segment,
-	.set_segment = svm_set_segment,
-	.get_cs_db_l_bits = kvm_get_cs_db_l_bits,
-	.decache_cr4_guest_bits = svm_decache_cr4_guest_bits,
-	.set_cr0 = svm_set_cr0,
-	.set_cr3 = svm_set_cr3,
-	.set_cr4 = svm_set_cr4,
-	.set_efer = svm_set_efer,
-	.get_idt = svm_get_idt,
-	.set_idt = svm_set_idt,
-	.get_gdt = svm_get_gdt,
-	.set_gdt = svm_set_gdt,
-	.get_dr = svm_get_dr,
-	.set_dr = svm_set_dr,
-	.cache_regs = svm_cache_regs,
-	.decache_regs = svm_decache_regs,
-	.get_rflags = svm_get_rflags,
-	.set_rflags = svm_set_rflags,
-
-	.tlb_flush = svm_flush_tlb,
-
-	.run = svm_vcpu_run,
-	.handle_exit = handle_exit,
-	.skip_emulated_instruction = skip_emulated_instruction,
-	.patch_hypercall = svm_patch_hypercall,
-	.get_irq = svm_get_irq,
-	.set_irq = svm_set_irq,
-	.queue_exception = svm_queue_exception,
-	.exception_injected = svm_exception_injected,
-	.inject_pending_irq = svm_intr_assist,
-	.inject_pending_vectors = do_interrupt_requests,
-
-	.set_tss_addr = svm_set_tss_addr,
-};
-
-static int __init svm_init(void)
-{
-	return kvm_init(&svm_x86_ops, sizeof(struct vcpu_svm),
-			      THIS_MODULE);
-}
-
-static void __exit svm_exit(void)
-{
-	kvm_exit();
-}
-
-module_init(svm_init)
-module_exit(svm_exit)
diff --git a/drivers/kvm/svm.h b/drivers/kvm/svm.h
deleted file mode 100644
index 5fd50491b555..000000000000
--- a/drivers/kvm/svm.h
+++ /dev/null
@@ -1,325 +0,0 @@
-#ifndef __SVM_H
-#define __SVM_H
-
-enum {
-	INTERCEPT_INTR,
-	INTERCEPT_NMI,
-	INTERCEPT_SMI,
-	INTERCEPT_INIT,
-	INTERCEPT_VINTR,
-	INTERCEPT_SELECTIVE_CR0,
-	INTERCEPT_STORE_IDTR,
-	INTERCEPT_STORE_GDTR,
-	INTERCEPT_STORE_LDTR,
-	INTERCEPT_STORE_TR,
-	INTERCEPT_LOAD_IDTR,
-	INTERCEPT_LOAD_GDTR,
-	INTERCEPT_LOAD_LDTR,
-	INTERCEPT_LOAD_TR,
-	INTERCEPT_RDTSC,
-	INTERCEPT_RDPMC,
-	INTERCEPT_PUSHF,
-	INTERCEPT_POPF,
-	INTERCEPT_CPUID,
-	INTERCEPT_RSM,
-	INTERCEPT_IRET,
-	INTERCEPT_INTn,
-	INTERCEPT_INVD,
-	INTERCEPT_PAUSE,
-	INTERCEPT_HLT,
-	INTERCEPT_INVLPG,
-	INTERCEPT_INVLPGA,
-	INTERCEPT_IOIO_PROT,
-	INTERCEPT_MSR_PROT,
-	INTERCEPT_TASK_SWITCH,
-	INTERCEPT_FERR_FREEZE,
-	INTERCEPT_SHUTDOWN,
-	INTERCEPT_VMRUN,
-	INTERCEPT_VMMCALL,
-	INTERCEPT_VMLOAD,
-	INTERCEPT_VMSAVE,
-	INTERCEPT_STGI,
-	INTERCEPT_CLGI,
-	INTERCEPT_SKINIT,
-	INTERCEPT_RDTSCP,
-	INTERCEPT_ICEBP,
-	INTERCEPT_WBINVD,
-	INTERCEPT_MONITOR,
-	INTERCEPT_MWAIT,
-	INTERCEPT_MWAIT_COND,
-};
-
-
-struct __attribute__ ((__packed__)) vmcb_control_area {
-	u16 intercept_cr_read;
-	u16 intercept_cr_write;
-	u16 intercept_dr_read;
-	u16 intercept_dr_write;
-	u32 intercept_exceptions;
-	u64 intercept;
-	u8 reserved_1[44];
-	u64 iopm_base_pa;
-	u64 msrpm_base_pa;
-	u64 tsc_offset;
-	u32 asid;
-	u8 tlb_ctl;
-	u8 reserved_2[3];
-	u32 int_ctl;
-	u32 int_vector;
-	u32 int_state;
-	u8 reserved_3[4];
-	u32 exit_code;
-	u32 exit_code_hi;
-	u64 exit_info_1;
-	u64 exit_info_2;
-	u32 exit_int_info;
-	u32 exit_int_info_err;
-	u64 nested_ctl;
-	u8 reserved_4[16];
-	u32 event_inj;
-	u32 event_inj_err;
-	u64 nested_cr3;
-	u64 lbr_ctl;
-	u8 reserved_5[832];
-};
-
-
-#define TLB_CONTROL_DO_NOTHING 0
-#define TLB_CONTROL_FLUSH_ALL_ASID 1
-
-#define V_TPR_MASK 0x0f
-
-#define V_IRQ_SHIFT 8
-#define V_IRQ_MASK (1 << V_IRQ_SHIFT)
-
-#define V_INTR_PRIO_SHIFT 16
-#define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
-
-#define V_IGN_TPR_SHIFT 20
-#define V_IGN_TPR_MASK (1 << V_IGN_TPR_SHIFT)
-
-#define V_INTR_MASKING_SHIFT 24
-#define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
-
-#define SVM_INTERRUPT_SHADOW_MASK 1
-
-#define SVM_IOIO_STR_SHIFT 2
-#define SVM_IOIO_REP_SHIFT 3
-#define SVM_IOIO_SIZE_SHIFT 4
-#define SVM_IOIO_ASIZE_SHIFT 7
-
-#define SVM_IOIO_TYPE_MASK 1
-#define SVM_IOIO_STR_MASK (1 << SVM_IOIO_STR_SHIFT)
-#define SVM_IOIO_REP_MASK (1 << SVM_IOIO_REP_SHIFT)
-#define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
-#define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT)
-
-struct __attribute__ ((__packed__)) vmcb_seg {
-	u16 selector;
-	u16 attrib;
-	u32 limit;
-	u64 base;
-};
-
-struct __attribute__ ((__packed__)) vmcb_save_area {
-	struct vmcb_seg es;
-	struct vmcb_seg cs;
-	struct vmcb_seg ss;
-	struct vmcb_seg ds;
-	struct vmcb_seg fs;
-	struct vmcb_seg gs;
-	struct vmcb_seg gdtr;
-	struct vmcb_seg ldtr;
-	struct vmcb_seg idtr;
-	struct vmcb_seg tr;
-	u8 reserved_1[43];
-	u8 cpl;
-	u8 reserved_2[4];
-	u64 efer;
-	u8 reserved_3[112];
-	u64 cr4;
-	u64 cr3;
-	u64 cr0;
-	u64 dr7;
-	u64 dr6;
-	u64 rflags;
-	u64 rip;
-	u8 reserved_4[88];
-	u64 rsp;
-	u8 reserved_5[24];
-	u64 rax;
-	u64 star;
-	u64 lstar;
-	u64 cstar;
-	u64 sfmask;
-	u64 kernel_gs_base;
-	u64 sysenter_cs;
-	u64 sysenter_esp;
-	u64 sysenter_eip;
-	u64 cr2;
-	u8 reserved_6[32];
-	u64 g_pat;
-	u64 dbgctl;
-	u64 br_from;
-	u64 br_to;
-	u64 last_excp_from;
-	u64 last_excp_to;
-};
-
-struct __attribute__ ((__packed__)) vmcb {
-	struct vmcb_control_area control;
-	struct vmcb_save_area save;
-};
-
-#define SVM_CPUID_FEATURE_SHIFT 2
-#define SVM_CPUID_FUNC 0x8000000a
-
-#define MSR_EFER_SVME_MASK (1ULL << 12)
-#define MSR_VM_CR       0xc0010114
-#define MSR_VM_HSAVE_PA 0xc0010117ULL
-
-#define SVM_VM_CR_SVM_DISABLE 4
-
-#define SVM_SELECTOR_S_SHIFT 4
-#define SVM_SELECTOR_DPL_SHIFT 5
-#define SVM_SELECTOR_P_SHIFT 7
-#define SVM_SELECTOR_AVL_SHIFT 8
-#define SVM_SELECTOR_L_SHIFT 9
-#define SVM_SELECTOR_DB_SHIFT 10
-#define SVM_SELECTOR_G_SHIFT 11
-
-#define SVM_SELECTOR_TYPE_MASK (0xf)
-#define SVM_SELECTOR_S_MASK (1 << SVM_SELECTOR_S_SHIFT)
-#define SVM_SELECTOR_DPL_MASK (3 << SVM_SELECTOR_DPL_SHIFT)
-#define SVM_SELECTOR_P_MASK (1 << SVM_SELECTOR_P_SHIFT)
-#define SVM_SELECTOR_AVL_MASK (1 << SVM_SELECTOR_AVL_SHIFT)
-#define SVM_SELECTOR_L_MASK (1 << SVM_SELECTOR_L_SHIFT)
-#define SVM_SELECTOR_DB_MASK (1 << SVM_SELECTOR_DB_SHIFT)
-#define SVM_SELECTOR_G_MASK (1 << SVM_SELECTOR_G_SHIFT)
-
-#define SVM_SELECTOR_WRITE_MASK (1 << 1)
-#define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK
-#define SVM_SELECTOR_CODE_MASK (1 << 3)
-
-#define INTERCEPT_CR0_MASK 1
-#define INTERCEPT_CR3_MASK (1 << 3)
-#define INTERCEPT_CR4_MASK (1 << 4)
-#define INTERCEPT_CR8_MASK (1 << 8)
-
-#define INTERCEPT_DR0_MASK 1
-#define INTERCEPT_DR1_MASK (1 << 1)
-#define INTERCEPT_DR2_MASK (1 << 2)
-#define INTERCEPT_DR3_MASK (1 << 3)
-#define INTERCEPT_DR4_MASK (1 << 4)
-#define INTERCEPT_DR5_MASK (1 << 5)
-#define INTERCEPT_DR6_MASK (1 << 6)
-#define INTERCEPT_DR7_MASK (1 << 7)
-
-#define SVM_EVTINJ_VEC_MASK 0xff
-
-#define SVM_EVTINJ_TYPE_SHIFT 8
-#define SVM_EVTINJ_TYPE_MASK (7 << SVM_EVTINJ_TYPE_SHIFT)
-
-#define SVM_EVTINJ_TYPE_INTR (0 << SVM_EVTINJ_TYPE_SHIFT)
-#define SVM_EVTINJ_TYPE_NMI (2 << SVM_EVTINJ_TYPE_SHIFT)
-#define SVM_EVTINJ_TYPE_EXEPT (3 << SVM_EVTINJ_TYPE_SHIFT)
-#define SVM_EVTINJ_TYPE_SOFT (4 << SVM_EVTINJ_TYPE_SHIFT)
-
-#define SVM_EVTINJ_VALID (1 << 31)
-#define SVM_EVTINJ_VALID_ERR (1 << 11)
-
-#define SVM_EXITINTINFO_VEC_MASK SVM_EVTINJ_VEC_MASK
-
-#define	SVM_EXITINTINFO_TYPE_INTR SVM_EVTINJ_TYPE_INTR
-#define	SVM_EXITINTINFO_TYPE_NMI SVM_EVTINJ_TYPE_NMI
-#define	SVM_EXITINTINFO_TYPE_EXEPT SVM_EVTINJ_TYPE_EXEPT
-#define	SVM_EXITINTINFO_TYPE_SOFT SVM_EVTINJ_TYPE_SOFT
-
-#define SVM_EXITINTINFO_VALID SVM_EVTINJ_VALID
-#define SVM_EXITINTINFO_VALID_ERR SVM_EVTINJ_VALID_ERR
-
-#define	SVM_EXIT_READ_CR0 	0x000
-#define	SVM_EXIT_READ_CR3 	0x003
-#define	SVM_EXIT_READ_CR4 	0x004
-#define	SVM_EXIT_READ_CR8 	0x008
-#define	SVM_EXIT_WRITE_CR0 	0x010
-#define	SVM_EXIT_WRITE_CR3 	0x013
-#define	SVM_EXIT_WRITE_CR4 	0x014
-#define	SVM_EXIT_WRITE_CR8 	0x018
-#define	SVM_EXIT_READ_DR0 	0x020
-#define	SVM_EXIT_READ_DR1 	0x021
-#define	SVM_EXIT_READ_DR2 	0x022
-#define	SVM_EXIT_READ_DR3 	0x023
-#define	SVM_EXIT_READ_DR4 	0x024
-#define	SVM_EXIT_READ_DR5 	0x025
-#define	SVM_EXIT_READ_DR6 	0x026
-#define	SVM_EXIT_READ_DR7 	0x027
-#define	SVM_EXIT_WRITE_DR0 	0x030
-#define	SVM_EXIT_WRITE_DR1 	0x031
-#define	SVM_EXIT_WRITE_DR2 	0x032
-#define	SVM_EXIT_WRITE_DR3 	0x033
-#define	SVM_EXIT_WRITE_DR4 	0x034
-#define	SVM_EXIT_WRITE_DR5 	0x035
-#define	SVM_EXIT_WRITE_DR6 	0x036
-#define	SVM_EXIT_WRITE_DR7 	0x037
-#define SVM_EXIT_EXCP_BASE      0x040
-#define SVM_EXIT_INTR		0x060
-#define SVM_EXIT_NMI		0x061
-#define SVM_EXIT_SMI		0x062
-#define SVM_EXIT_INIT		0x063
-#define SVM_EXIT_VINTR		0x064
-#define SVM_EXIT_CR0_SEL_WRITE	0x065
-#define SVM_EXIT_IDTR_READ	0x066
-#define SVM_EXIT_GDTR_READ	0x067
-#define SVM_EXIT_LDTR_READ	0x068
-#define SVM_EXIT_TR_READ	0x069
-#define SVM_EXIT_IDTR_WRITE	0x06a
-#define SVM_EXIT_GDTR_WRITE	0x06b
-#define SVM_EXIT_LDTR_WRITE	0x06c
-#define SVM_EXIT_TR_WRITE	0x06d
-#define SVM_EXIT_RDTSC		0x06e
-#define SVM_EXIT_RDPMC		0x06f
-#define SVM_EXIT_PUSHF		0x070
-#define SVM_EXIT_POPF		0x071
-#define SVM_EXIT_CPUID		0x072
-#define SVM_EXIT_RSM		0x073
-#define SVM_EXIT_IRET		0x074
-#define SVM_EXIT_SWINT		0x075
-#define SVM_EXIT_INVD		0x076
-#define SVM_EXIT_PAUSE		0x077
-#define SVM_EXIT_HLT		0x078
-#define SVM_EXIT_INVLPG		0x079
-#define SVM_EXIT_INVLPGA	0x07a
-#define SVM_EXIT_IOIO		0x07b
-#define SVM_EXIT_MSR		0x07c
-#define SVM_EXIT_TASK_SWITCH	0x07d
-#define SVM_EXIT_FERR_FREEZE	0x07e
-#define SVM_EXIT_SHUTDOWN	0x07f
-#define SVM_EXIT_VMRUN		0x080
-#define SVM_EXIT_VMMCALL	0x081
-#define SVM_EXIT_VMLOAD		0x082
-#define SVM_EXIT_VMSAVE		0x083
-#define SVM_EXIT_STGI		0x084
-#define SVM_EXIT_CLGI		0x085
-#define SVM_EXIT_SKINIT		0x086
-#define SVM_EXIT_RDTSCP		0x087
-#define SVM_EXIT_ICEBP		0x088
-#define SVM_EXIT_WBINVD		0x089
-#define SVM_EXIT_MONITOR	0x08a
-#define SVM_EXIT_MWAIT		0x08b
-#define SVM_EXIT_MWAIT_COND	0x08c
-#define SVM_EXIT_NPF  		0x400
-
-#define SVM_EXIT_ERR		-1
-
-#define SVM_CR0_SELECTIVE_MASK (1 << 3 | 1) /* TS and MP */
-
-#define SVM_VMLOAD ".byte 0x0f, 0x01, 0xda"
-#define SVM_VMRUN  ".byte 0x0f, 0x01, 0xd8"
-#define SVM_VMSAVE ".byte 0x0f, 0x01, 0xdb"
-#define SVM_CLGI   ".byte 0x0f, 0x01, 0xdd"
-#define SVM_STGI   ".byte 0x0f, 0x01, 0xdc"
-#define SVM_INVLPGA ".byte 0x0f, 0x01, 0xdf"
-
-#endif
-
diff --git a/drivers/kvm/types.h b/drivers/kvm/types.h
deleted file mode 100644
index 1c4e46decb22..000000000000
--- a/drivers/kvm/types.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- *
- */
-
-#ifndef __KVM_TYPES_H__
-#define __KVM_TYPES_H__
-
-#include <asm/types.h>
-
-/*
- * Address types:
- *
- *  gva - guest virtual address
- *  gpa - guest physical address
- *  gfn - guest frame number
- *  hva - host virtual address
- *  hpa - host physical address
- *  hfn - host frame number
- */
-
-typedef unsigned long  gva_t;
-typedef u64            gpa_t;
-typedef unsigned long  gfn_t;
-
-typedef unsigned long  hva_t;
-typedef u64            hpa_t;
-typedef unsigned long  hfn_t;
-
-struct kvm_pio_request {
-	unsigned long count;
-	int cur_count;
-	struct page *guest_pages[2];
-	unsigned guest_page_offset;
-	int in;
-	int port;
-	int size;
-	int string;
-	int down;
-	int rep;
-};
-
-#endif /* __KVM_TYPES_H__ */
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
deleted file mode 100644
index 11ca2340d38f..000000000000
--- a/drivers/kvm/vmx.c
+++ /dev/null
@@ -1,2673 +0,0 @@
-/*
- * Kernel-based Virtual Machine driver for Linux
- *
- * This module enables machines with Intel VT-x extensions to run virtual
- * machines without emulation or binary translation.
- *
- * Copyright (C) 2006 Qumranet, Inc.
- *
- * Authors:
- *   Avi Kivity   <avi@qumranet.com>
- *   Yaniv Kamay  <yaniv@qumranet.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- *
- */
-
-#include "kvm.h"
-#include "x86.h"
-#include "x86_emulate.h"
-#include "irq.h"
-#include "vmx.h"
-#include "segment_descriptor.h"
-#include "mmu.h"
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/highmem.h>
-#include <linux/sched.h>
-#include <linux/moduleparam.h>
-
-#include <asm/io.h>
-#include <asm/desc.h>
-
-MODULE_AUTHOR("Qumranet");
-MODULE_LICENSE("GPL");
-
-static int bypass_guest_pf = 1;
-module_param(bypass_guest_pf, bool, 0);
-
-struct vmcs {
-	u32 revision_id;
-	u32 abort;
-	char data[0];
-};
-
-struct vcpu_vmx {
-	struct kvm_vcpu       vcpu;
-	int                   launched;
-	u8                    fail;
-	u32                   idt_vectoring_info;
-	struct kvm_msr_entry *guest_msrs;
-	struct kvm_msr_entry *host_msrs;
-	int                   nmsrs;
-	int                   save_nmsrs;
-	int                   msr_offset_efer;
-#ifdef CONFIG_X86_64
-	int                   msr_offset_kernel_gs_base;
-#endif
-	struct vmcs          *vmcs;
-	struct {
-		int           loaded;
-		u16           fs_sel, gs_sel, ldt_sel;
-		int           gs_ldt_reload_needed;
-		int           fs_reload_needed;
-		int           guest_efer_loaded;
-	} host_state;
-	struct {
-		struct {
-			bool pending;
-			u8 vector;
-			unsigned rip;
-		} irq;
-	} rmode;
-};
-
-static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu)
-{
-	return container_of(vcpu, struct vcpu_vmx, vcpu);
-}
-
-static int init_rmode_tss(struct kvm *kvm);
-
-static DEFINE_PER_CPU(struct vmcs *, vmxarea);
-static DEFINE_PER_CPU(struct vmcs *, current_vmcs);
-
-static struct page *vmx_io_bitmap_a;
-static struct page *vmx_io_bitmap_b;
-
-static struct vmcs_config {
-	int size;
-	int order;
-	u32 revision_id;
-	u32 pin_based_exec_ctrl;
-	u32 cpu_based_exec_ctrl;
-	u32 cpu_based_2nd_exec_ctrl;
-	u32 vmexit_ctrl;
-	u32 vmentry_ctrl;
-} vmcs_config;
-
-#define VMX_SEGMENT_FIELD(seg)					\
-	[VCPU_SREG_##seg] = {                                   \
-		.selector = GUEST_##seg##_SELECTOR,		\
-		.base = GUEST_##seg##_BASE,		   	\
-		.limit = GUEST_##seg##_LIMIT,		   	\
-		.ar_bytes = GUEST_##seg##_AR_BYTES,	   	\
-	}
-
-static struct kvm_vmx_segment_field {
-	unsigned selector;
-	unsigned base;
-	unsigned limit;
-	unsigned ar_bytes;
-} kvm_vmx_segment_fields[] = {
-	VMX_SEGMENT_FIELD(CS),
-	VMX_SEGMENT_FIELD(DS),
-	VMX_SEGMENT_FIELD(ES),
-	VMX_SEGMENT_FIELD(FS),
-	VMX_SEGMENT_FIELD(GS),
-	VMX_SEGMENT_FIELD(SS),
-	VMX_SEGMENT_FIELD(TR),
-	VMX_SEGMENT_FIELD(LDTR),
-};
-
-/*
- * Keep MSR_K6_STAR at the end, as setup_msrs() will try to optimize it
- * away by decrementing the array size.
- */
-static const u32 vmx_msr_index[] = {
-#ifdef CONFIG_X86_64
-	MSR_SYSCALL_MASK, MSR_LSTAR, MSR_CSTAR, MSR_KERNEL_GS_BASE,
-#endif
-	MSR_EFER, MSR_K6_STAR,
-};
-#define NR_VMX_MSR ARRAY_SIZE(vmx_msr_index)
-
-static void load_msrs(struct kvm_msr_entry *e, int n)
-{
-	int i;
-
-	for (i = 0; i < n; ++i)
-		wrmsrl(e[i].index, e[i].data);
-}
-
-static void save_msrs(struct kvm_msr_entry *e, int n)
-{
-	int i;
-
-	for (i = 0; i < n; ++i)
-		rdmsrl(e[i].index, e[i].data);
-}
-
-static inline int is_page_fault(u32 intr_info)
-{
-	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK |
-			     INTR_INFO_VALID_MASK)) ==
-		(INTR_TYPE_EXCEPTION | PF_VECTOR | INTR_INFO_VALID_MASK);
-}
-
-static inline int is_no_device(u32 intr_info)
-{
-	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK |
-			     INTR_INFO_VALID_MASK)) ==
-		(INTR_TYPE_EXCEPTION | NM_VECTOR | INTR_INFO_VALID_MASK);
-}
-
-static inline int is_invalid_opcode(u32 intr_info)
-{
-	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK |
-			     INTR_INFO_VALID_MASK)) ==
-		(INTR_TYPE_EXCEPTION | UD_VECTOR | INTR_INFO_VALID_MASK);
-}
-
-static inline int is_external_interrupt(u32 intr_info)
-{
-	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VALID_MASK))
-		== (INTR_TYPE_EXT_INTR | INTR_INFO_VALID_MASK);
-}
-
-static inline int cpu_has_vmx_tpr_shadow(void)
-{
-	return (vmcs_config.cpu_based_exec_ctrl & CPU_BASED_TPR_SHADOW);
-}
-
-static inline int vm_need_tpr_shadow(struct kvm *kvm)
-{
-	return ((cpu_has_vmx_tpr_shadow()) && (irqchip_in_kernel(kvm)));
-}
-
-static inline int cpu_has_secondary_exec_ctrls(void)
-{
-	return (vmcs_config.cpu_based_exec_ctrl &
-		CPU_BASED_ACTIVATE_SECONDARY_CONTROLS);
-}
-
-static inline int cpu_has_vmx_virtualize_apic_accesses(void)
-{
-	return (vmcs_config.cpu_based_2nd_exec_ctrl &
-		SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES);
-}
-
-static inline int vm_need_virtualize_apic_accesses(struct kvm *kvm)
-{
-	return ((cpu_has_vmx_virtualize_apic_accesses()) &&
-		(irqchip_in_kernel(kvm)));
-}
-
-static int __find_msr_index(struct vcpu_vmx *vmx, u32 msr)
-{
-	int i;
-
-	for (i = 0; i < vmx->nmsrs; ++i)
-		if (vmx->guest_msrs[i].index == msr)
-			return i;
-	return -1;
-}
-
-static struct kvm_msr_entry *find_msr_entry(struct vcpu_vmx *vmx, u32 msr)
-{
-	int i;
-
-	i = __find_msr_index(vmx, msr);
-	if (i >= 0)
-		return &vmx->guest_msrs[i];
-	return NULL;
-}
-
-static void vmcs_clear(struct vmcs *vmcs)
-{
-	u64 phys_addr = __pa(vmcs);
-	u8 error;
-
-	asm volatile (ASM_VMX_VMCLEAR_RAX "; setna %0"
-		      : "=g"(error) : "a"(&phys_addr), "m"(phys_addr)
-		      : "cc", "memory");
-	if (error)
-		printk(KERN_ERR "kvm: vmclear fail: %p/%llx\n",
-		       vmcs, phys_addr);
-}
-
-static void __vcpu_clear(void *arg)
-{
-	struct vcpu_vmx *vmx = arg;
-	int cpu = raw_smp_processor_id();
-
-	if (vmx->vcpu.cpu == cpu)
-		vmcs_clear(vmx->vmcs);
-	if (per_cpu(current_vmcs, cpu) == vmx->vmcs)
-		per_cpu(current_vmcs, cpu) = NULL;
-	rdtscll(vmx->vcpu.arch.host_tsc);
-}
-
-static void vcpu_clear(struct vcpu_vmx *vmx)
-{
-	if (vmx->vcpu.cpu == -1)
-		return;
-	smp_call_function_single(vmx->vcpu.cpu, __vcpu_clear, vmx, 0, 1);
-	vmx->launched = 0;
-}
-
-static unsigned long vmcs_readl(unsigned long field)
-{
-	unsigned long value;
-
-	asm volatile (ASM_VMX_VMREAD_RDX_RAX
-		      : "=a"(value) : "d"(field) : "cc");
-	return value;
-}
-
-static u16 vmcs_read16(unsigned long field)
-{
-	return vmcs_readl(field);
-}
-
-static u32 vmcs_read32(unsigned long field)
-{
-	return vmcs_readl(field);
-}
-
-static u64 vmcs_read64(unsigned long field)
-{
-#ifdef CONFIG_X86_64
-	return vmcs_readl(field);
-#else
-	return vmcs_readl(field) | ((u64)vmcs_readl(field+1) << 32);
-#endif
-}
-
-static noinline void vmwrite_error(unsigned long field, unsigned long value)
-{
-	printk(KERN_ERR "vmwrite error: reg %lx value %lx (err %d)\n",
-	       field, value, vmcs_read32(VM_INSTRUCTION_ERROR));
-	dump_stack();
-}
-
-static void vmcs_writel(unsigned long field, unsigned long value)
-{
-	u8 error;
-
-	asm volatile (ASM_VMX_VMWRITE_RAX_RDX "; setna %0"
-		       : "=q"(error) : "a"(value), "d"(field) : "cc");
-	if (unlikely(error))
-		vmwrite_error(field, value);
-}
-
-static void vmcs_write16(unsigned long field, u16 value)
-{
-	vmcs_writel(field, value);
-}
-
-static void vmcs_write32(unsigned long field, u32 value)
-{
-	vmcs_writel(field, value);
-}
-
-static void vmcs_write64(unsigned long field, u64 value)
-{
-#ifdef CONFIG_X86_64
-	vmcs_writel(field, value);
-#else
-	vmcs_writel(field, value);
-	asm volatile ("");
-	vmcs_writel(field+1, value >> 32);
-#endif
-}
-
-static void vmcs_clear_bits(unsigned long field, u32 mask)
-{
-	vmcs_writel(field, vmcs_readl(field) & ~mask);
-}
-
-static void vmcs_set_bits(unsigned long field, u32 mask)
-{
-	vmcs_writel(field, vmcs_readl(field) | mask);
-}
-
-static void update_exception_bitmap(struct kvm_vcpu *vcpu)
-{
-	u32 eb;
-
-	eb = (1u << PF_VECTOR) | (1u << UD_VECTOR);
-	if (!vcpu->fpu_active)
-		eb |= 1u << NM_VECTOR;
-	if (vcpu->guest_debug.enabled)
-		eb |= 1u << 1;
-	if (vcpu->arch.rmode.active)
-		eb = ~0;
-	vmcs_write32(EXCEPTION_BITMAP, eb);
-}
-
-static void reload_tss(void)
-{
-#ifndef CONFIG_X86_64
-
-	/*
-	 * VT restores TR but not its size.  Useless.
-	 */
-	struct descriptor_table gdt;
-	struct segment_descriptor *descs;
-
-	get_gdt(&gdt);
-	descs = (void *)gdt.base;
-	descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
-	load_TR_desc();
-#endif
-}
-
-static void load_transition_efer(struct vcpu_vmx *vmx)
-{
-	int efer_offset = vmx->msr_offset_efer;
-	u64 host_efer = vmx->host_msrs[efer_offset].data;
-	u64 guest_efer = vmx->guest_msrs[efer_offset].data;
-	u64 ignore_bits;
-
-	if (efer_offset < 0)
-		return;
-	/*
-	 * NX is emulated; LMA and LME handled by hardware; SCE meaninless
-	 * outside long mode
-	 */
-	ignore_bits = EFER_NX | EFER_SCE;
-#ifdef CONFIG_X86_64
-	ignore_bits |= EFER_LMA | EFER_LME;
-	/* SCE is meaningful only in long mode on Intel */
-	if (guest_efer & EFER_LMA)
-		ignore_bits &= ~(u64)EFER_SCE;
-#endif
-	if ((guest_efer & ~ignore_bits) == (host_efer & ~ignore_bits))
-		return;
-
-	vmx->host_state.guest_efer_loaded = 1;
-	guest_efer &= ~ignore_bits;
-	guest_efer |= host_efer & ignore_bits;
-	wrmsrl(MSR_EFER, guest_efer);
-	vmx->vcpu.stat.efer_reload++;
-}
-
-static void reload_host_efer(struct vcpu_vmx *vmx)
-{
-	if (vmx->host_state.guest_efer_loaded) {
-		vmx->host_state.guest_efer_loaded = 0;
-		load_msrs(vmx->host_msrs + vmx->msr_offset_efer, 1);
-	}
-}
-
-static void vmx_save_host_state(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-
-	if (vmx->host_state.loaded)
-		return;
-
-	vmx->host_state.loaded = 1;
-	/*
-	 * Set host fs and gs selectors.  Unfortunately, 22.2.3 does not
-	 * allow segment selectors with cpl > 0 or ti == 1.
-	 */
-	vmx->host_state.ldt_sel = read_ldt();
-	vmx->host_state.gs_ldt_reload_needed = vmx->host_state.ldt_sel;
-	vmx->host_state.fs_sel = read_fs();
-	if (!(vmx->host_state.fs_sel & 7)) {
-		vmcs_write16(HOST_FS_SELECTOR, vmx->host_state.fs_sel);
-		vmx->host_state.fs_reload_needed = 0;
-	} else {
-		vmcs_write16(HOST_FS_SELECTOR, 0);
-		vmx->host_state.fs_reload_needed = 1;
-	}
-	vmx->host_state.gs_sel = read_gs();
-	if (!(vmx->host_state.gs_sel & 7))
-		vmcs_write16(HOST_GS_SELECTOR, vmx->host_state.gs_sel);
-	else {
-		vmcs_write16(HOST_GS_SELECTOR, 0);
-		vmx->host_state.gs_ldt_reload_needed = 1;
-	}
-
-#ifdef CONFIG_X86_64
-	vmcs_writel(HOST_FS_BASE, read_msr(MSR_FS_BASE));
-	vmcs_writel(HOST_GS_BASE, read_msr(MSR_GS_BASE));
-#else
-	vmcs_writel(HOST_FS_BASE, segment_base(vmx->host_state.fs_sel));
-	vmcs_writel(HOST_GS_BASE, segment_base(vmx->host_state.gs_sel));
-#endif
-
-#ifdef CONFIG_X86_64
-	if (is_long_mode(&vmx->vcpu))
-		save_msrs(vmx->host_msrs +
-			  vmx->msr_offset_kernel_gs_base, 1);
-
-#endif
-	load_msrs(vmx->guest_msrs, vmx->save_nmsrs);
-	load_transition_efer(vmx);
-}
-
-static void vmx_load_host_state(struct vcpu_vmx *vmx)
-{
-	unsigned long flags;
-
-	if (!vmx->host_state.loaded)
-		return;
-
-	++vmx->vcpu.stat.host_state_reload;
-	vmx->host_state.loaded = 0;
-	if (vmx->host_state.fs_reload_needed)
-		load_fs(vmx->host_state.fs_sel);
-	if (vmx->host_state.gs_ldt_reload_needed) {
-		load_ldt(vmx->host_state.ldt_sel);
-		/*
-		 * If we have to reload gs, we must take care to
-		 * preserve our gs base.
-		 */
-		local_irq_save(flags);
-		load_gs(vmx->host_state.gs_sel);
-#ifdef CONFIG_X86_64
-		wrmsrl(MSR_GS_BASE, vmcs_readl(HOST_GS_BASE));
-#endif
-		local_irq_restore(flags);
-	}
-	reload_tss();
-	save_msrs(vmx->guest_msrs, vmx->save_nmsrs);
-	load_msrs(vmx->host_msrs, vmx->save_nmsrs);
-	reload_host_efer(vmx);
-}
-
-/*
- * Switches to specified vcpu, until a matching vcpu_put(), but assumes
- * vcpu mutex is already taken.
- */
-static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	u64 phys_addr = __pa(vmx->vmcs);
-	u64 tsc_this, delta;
-
-	if (vcpu->cpu != cpu) {
-		vcpu_clear(vmx);
-		kvm_migrate_apic_timer(vcpu);
-	}
-
-	if (per_cpu(current_vmcs, cpu) != vmx->vmcs) {
-		u8 error;
-
-		per_cpu(current_vmcs, cpu) = vmx->vmcs;
-		asm volatile (ASM_VMX_VMPTRLD_RAX "; setna %0"
-			      : "=g"(error) : "a"(&phys_addr), "m"(phys_addr)
-			      : "cc");
-		if (error)
-			printk(KERN_ERR "kvm: vmptrld %p/%llx fail\n",
-			       vmx->vmcs, phys_addr);
-	}
-
-	if (vcpu->cpu != cpu) {
-		struct descriptor_table dt;
-		unsigned long sysenter_esp;
-
-		vcpu->cpu = cpu;
-		/*
-		 * Linux uses per-cpu TSS and GDT, so set these when switching
-		 * processors.
-		 */
-		vmcs_writel(HOST_TR_BASE, read_tr_base()); /* 22.2.4 */
-		get_gdt(&dt);
-		vmcs_writel(HOST_GDTR_BASE, dt.base);   /* 22.2.4 */
-
-		rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp);
-		vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */
-
-		/*
-		 * Make sure the time stamp counter is monotonous.
-		 */
-		rdtscll(tsc_this);
-		delta = vcpu->arch.host_tsc - tsc_this;
-		vmcs_write64(TSC_OFFSET, vmcs_read64(TSC_OFFSET) + delta);
-	}
-}
-
-static void vmx_vcpu_put(struct kvm_vcpu *vcpu)
-{
-	vmx_load_host_state(to_vmx(vcpu));
-}
-
-static void vmx_fpu_activate(struct kvm_vcpu *vcpu)
-{
-	if (vcpu->fpu_active)
-		return;
-	vcpu->fpu_active = 1;
-	vmcs_clear_bits(GUEST_CR0, X86_CR0_TS);
-	if (vcpu->arch.cr0 & X86_CR0_TS)
-		vmcs_set_bits(GUEST_CR0, X86_CR0_TS);
-	update_exception_bitmap(vcpu);
-}
-
-static void vmx_fpu_deactivate(struct kvm_vcpu *vcpu)
-{
-	if (!vcpu->fpu_active)
-		return;
-	vcpu->fpu_active = 0;
-	vmcs_set_bits(GUEST_CR0, X86_CR0_TS);
-	update_exception_bitmap(vcpu);
-}
-
-static void vmx_vcpu_decache(struct kvm_vcpu *vcpu)
-{
-	vcpu_clear(to_vmx(vcpu));
-}
-
-static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
-{
-	return vmcs_readl(GUEST_RFLAGS);
-}
-
-static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
-{
-	if (vcpu->arch.rmode.active)
-		rflags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;
-	vmcs_writel(GUEST_RFLAGS, rflags);
-}
-
-static void skip_emulated_instruction(struct kvm_vcpu *vcpu)
-{
-	unsigned long rip;
-	u32 interruptibility;
-
-	rip = vmcs_readl(GUEST_RIP);
-	rip += vmcs_read32(VM_EXIT_INSTRUCTION_LEN);
-	vmcs_writel(GUEST_RIP, rip);
-
-	/*
-	 * We emulated an instruction, so temporary interrupt blocking
-	 * should be removed, if set.
-	 */
-	interruptibility = vmcs_read32(GUEST_INTERRUPTIBILITY_INFO);
-	if (interruptibility & 3)
-		vmcs_write32(GUEST_INTERRUPTIBILITY_INFO,
-			     interruptibility & ~3);
-	vcpu->arch.interrupt_window_open = 1;
-}
-
-static void vmx_queue_exception(struct kvm_vcpu *vcpu, unsigned nr,
-				bool has_error_code, u32 error_code)
-{
-	vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,
-		     nr | INTR_TYPE_EXCEPTION
-		     | (has_error_code ? INTR_INFO_DELIEVER_CODE_MASK : 0)
-		     | INTR_INFO_VALID_MASK);
-	if (has_error_code)
-		vmcs_write32(VM_ENTRY_EXCEPTION_ERROR_CODE, error_code);
-}
-
-static bool vmx_exception_injected(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-
-	return !(vmx->idt_vectoring_info & VECTORING_INFO_VALID_MASK);
-}
-
-/*
- * Swap MSR entry in host/guest MSR entry array.
- */
-#ifdef CONFIG_X86_64
-static void move_msr_up(struct vcpu_vmx *vmx, int from, int to)
-{
-	struct kvm_msr_entry tmp;
-
-	tmp = vmx->guest_msrs[to];
-	vmx->guest_msrs[to] = vmx->guest_msrs[from];
-	vmx->guest_msrs[from] = tmp;
-	tmp = vmx->host_msrs[to];
-	vmx->host_msrs[to] = vmx->host_msrs[from];
-	vmx->host_msrs[from] = tmp;
-}
-#endif
-
-/*
- * Set up the vmcs to automatically save and restore system
- * msrs.  Don't touch the 64-bit msrs if the guest is in legacy
- * mode, as fiddling with msrs is very expensive.
- */
-static void setup_msrs(struct vcpu_vmx *vmx)
-{
-	int save_nmsrs;
-
-	save_nmsrs = 0;
-#ifdef CONFIG_X86_64
-	if (is_long_mode(&vmx->vcpu)) {
-		int index;
-
-		index = __find_msr_index(vmx, MSR_SYSCALL_MASK);
-		if (index >= 0)
-			move_msr_up(vmx, index, save_nmsrs++);
-		index = __find_msr_index(vmx, MSR_LSTAR);
-		if (index >= 0)
-			move_msr_up(vmx, index, save_nmsrs++);
-		index = __find_msr_index(vmx, MSR_CSTAR);
-		if (index >= 0)
-			move_msr_up(vmx, index, save_nmsrs++);
-		index = __find_msr_index(vmx, MSR_KERNEL_GS_BASE);
-		if (index >= 0)
-			move_msr_up(vmx, index, save_nmsrs++);
-		/*
-		 * MSR_K6_STAR is only needed on long mode guests, and only
-		 * if efer.sce is enabled.
-		 */
-		index = __find_msr_index(vmx, MSR_K6_STAR);
-		if ((index >= 0) && (vmx->vcpu.arch.shadow_efer & EFER_SCE))
-			move_msr_up(vmx, index, save_nmsrs++);
-	}
-#endif
-	vmx->save_nmsrs = save_nmsrs;
-
-#ifdef CONFIG_X86_64
-	vmx->msr_offset_kernel_gs_base =
-		__find_msr_index(vmx, MSR_KERNEL_GS_BASE);
-#endif
-	vmx->msr_offset_efer = __find_msr_index(vmx, MSR_EFER);
-}
-
-/*
- * reads and returns guest's timestamp counter "register"
- * guest_tsc = host_tsc + tsc_offset    -- 21.3
- */
-static u64 guest_read_tsc(void)
-{
-	u64 host_tsc, tsc_offset;
-
-	rdtscll(host_tsc);
-	tsc_offset = vmcs_read64(TSC_OFFSET);
-	return host_tsc + tsc_offset;
-}
-
-/*
- * writes 'guest_tsc' into guest's timestamp counter "register"
- * guest_tsc = host_tsc + tsc_offset ==> tsc_offset = guest_tsc - host_tsc
- */
-static void guest_write_tsc(u64 guest_tsc)
-{
-	u64 host_tsc;
-
-	rdtscll(host_tsc);
-	vmcs_write64(TSC_OFFSET, guest_tsc - host_tsc);
-}
-
-/*
- * Reads an msr value (of 'msr_index') into 'pdata'.
- * Returns 0 on success, non-0 otherwise.
- * Assumes vcpu_load() was already called.
- */
-static int vmx_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
-{
-	u64 data;
-	struct kvm_msr_entry *msr;
-
-	if (!pdata) {
-		printk(KERN_ERR "BUG: get_msr called with NULL pdata\n");
-		return -EINVAL;
-	}
-
-	switch (msr_index) {
-#ifdef CONFIG_X86_64
-	case MSR_FS_BASE:
-		data = vmcs_readl(GUEST_FS_BASE);
-		break;
-	case MSR_GS_BASE:
-		data = vmcs_readl(GUEST_GS_BASE);
-		break;
-	case MSR_EFER:
-		return kvm_get_msr_common(vcpu, msr_index, pdata);
-#endif
-	case MSR_IA32_TIME_STAMP_COUNTER:
-		data = guest_read_tsc();
-		break;
-	case MSR_IA32_SYSENTER_CS:
-		data = vmcs_read32(GUEST_SYSENTER_CS);
-		break;
-	case MSR_IA32_SYSENTER_EIP:
-		data = vmcs_readl(GUEST_SYSENTER_EIP);
-		break;
-	case MSR_IA32_SYSENTER_ESP:
-		data = vmcs_readl(GUEST_SYSENTER_ESP);
-		break;
-	default:
-		msr = find_msr_entry(to_vmx(vcpu), msr_index);
-		if (msr) {
-			data = msr->data;
-			break;
-		}
-		return kvm_get_msr_common(vcpu, msr_index, pdata);
-	}
-
-	*pdata = data;
-	return 0;
-}
-
-/*
- * Writes msr value into into the appropriate "register".
- * Returns 0 on success, non-0 otherwise.
- * Assumes vcpu_load() was already called.
- */
-static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	struct kvm_msr_entry *msr;
-	int ret = 0;
-
-	switch (msr_index) {
-#ifdef CONFIG_X86_64
-	case MSR_EFER:
-		ret = kvm_set_msr_common(vcpu, msr_index, data);
-		if (vmx->host_state.loaded) {
-			reload_host_efer(vmx);
-			load_transition_efer(vmx);
-		}
-		break;
-	case MSR_FS_BASE:
-		vmcs_writel(GUEST_FS_BASE, data);
-		break;
-	case MSR_GS_BASE:
-		vmcs_writel(GUEST_GS_BASE, data);
-		break;
-#endif
-	case MSR_IA32_SYSENTER_CS:
-		vmcs_write32(GUEST_SYSENTER_CS, data);
-		break;
-	case MSR_IA32_SYSENTER_EIP:
-		vmcs_writel(GUEST_SYSENTER_EIP, data);
-		break;
-	case MSR_IA32_SYSENTER_ESP:
-		vmcs_writel(GUEST_SYSENTER_ESP, data);
-		break;
-	case MSR_IA32_TIME_STAMP_COUNTER:
-		guest_write_tsc(data);
-		break;
-	default:
-		msr = find_msr_entry(vmx, msr_index);
-		if (msr) {
-			msr->data = data;
-			if (vmx->host_state.loaded)
-				load_msrs(vmx->guest_msrs, vmx->save_nmsrs);
-			break;
-		}
-		ret = kvm_set_msr_common(vcpu, msr_index, data);
-	}
-
-	return ret;
-}
-
-/*
- * Sync the rsp and rip registers into the vcpu structure.  This allows
- * registers to be accessed by indexing vcpu->arch.regs.
- */
-static void vcpu_load_rsp_rip(struct kvm_vcpu *vcpu)
-{
-	vcpu->arch.regs[VCPU_REGS_RSP] = vmcs_readl(GUEST_RSP);
-	vcpu->arch.rip = vmcs_readl(GUEST_RIP);
-}
-
-/*
- * Syncs rsp and rip back into the vmcs.  Should be called after possible
- * modification.
- */
-static void vcpu_put_rsp_rip(struct kvm_vcpu *vcpu)
-{
-	vmcs_writel(GUEST_RSP, vcpu->arch.regs[VCPU_REGS_RSP]);
-	vmcs_writel(GUEST_RIP, vcpu->arch.rip);
-}
-
-static int set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_debug_guest *dbg)
-{
-	unsigned long dr7 = 0x400;
-	int old_singlestep;
-
-	old_singlestep = vcpu->guest_debug.singlestep;
-
-	vcpu->guest_debug.enabled = dbg->enabled;
-	if (vcpu->guest_debug.enabled) {
-		int i;
-
-		dr7 |= 0x200;  /* exact */
-		for (i = 0; i < 4; ++i) {
-			if (!dbg->breakpoints[i].enabled)
-				continue;
-			vcpu->guest_debug.bp[i] = dbg->breakpoints[i].address;
-			dr7 |= 2 << (i*2);    /* global enable */
-			dr7 |= 0 << (i*4+16); /* execution breakpoint */
-		}
-
-		vcpu->guest_debug.singlestep = dbg->singlestep;
-	} else
-		vcpu->guest_debug.singlestep = 0;
-
-	if (old_singlestep && !vcpu->guest_debug.singlestep) {
-		unsigned long flags;
-
-		flags = vmcs_readl(GUEST_RFLAGS);
-		flags &= ~(X86_EFLAGS_TF | X86_EFLAGS_RF);
-		vmcs_writel(GUEST_RFLAGS, flags);
-	}
-
-	update_exception_bitmap(vcpu);
-	vmcs_writel(GUEST_DR7, dr7);
-
-	return 0;
-}
-
-static int vmx_get_irq(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	u32 idtv_info_field;
-
-	idtv_info_field = vmx->idt_vectoring_info;
-	if (idtv_info_field & INTR_INFO_VALID_MASK) {
-		if (is_external_interrupt(idtv_info_field))
-			return idtv_info_field & VECTORING_INFO_VECTOR_MASK;
-		else
-			printk(KERN_DEBUG "pending exception: not handled yet\n");
-	}
-	return -1;
-}
-
-static __init int cpu_has_kvm_support(void)
-{
-	unsigned long ecx = cpuid_ecx(1);
-	return test_bit(5, &ecx); /* CPUID.1:ECX.VMX[bit 5] -> VT */
-}
-
-static __init int vmx_disabled_by_bios(void)
-{
-	u64 msr;
-
-	rdmsrl(MSR_IA32_FEATURE_CONTROL, msr);
-	return (msr & (MSR_IA32_FEATURE_CONTROL_LOCKED |
-		       MSR_IA32_FEATURE_CONTROL_VMXON_ENABLED))
-	    == MSR_IA32_FEATURE_CONTROL_LOCKED;
-	/* locked but not enabled */
-}
-
-static void hardware_enable(void *garbage)
-{
-	int cpu = raw_smp_processor_id();
-	u64 phys_addr = __pa(per_cpu(vmxarea, cpu));
-	u64 old;
-
-	rdmsrl(MSR_IA32_FEATURE_CONTROL, old);
-	if ((old & (MSR_IA32_FEATURE_CONTROL_LOCKED |
-		    MSR_IA32_FEATURE_CONTROL_VMXON_ENABLED))
-	    != (MSR_IA32_FEATURE_CONTROL_LOCKED |
-		MSR_IA32_FEATURE_CONTROL_VMXON_ENABLED))
-		/* enable and lock */
-		wrmsrl(MSR_IA32_FEATURE_CONTROL, old |
-		       MSR_IA32_FEATURE_CONTROL_LOCKED |
-		       MSR_IA32_FEATURE_CONTROL_VMXON_ENABLED);
-	write_cr4(read_cr4() | X86_CR4_VMXE); /* FIXME: not cpu hotplug safe */
-	asm volatile (ASM_VMX_VMXON_RAX : : "a"(&phys_addr), "m"(phys_addr)
-		      : "memory", "cc");
-}
-
-static void hardware_disable(void *garbage)
-{
-	asm volatile (ASM_VMX_VMXOFF : : : "cc");
-}
-
-static __init int adjust_vmx_controls(u32 ctl_min, u32 ctl_opt,
-				      u32 msr, u32 *result)
-{
-	u32 vmx_msr_low, vmx_msr_high;
-	u32 ctl = ctl_min | ctl_opt;
-
-	rdmsr(msr, vmx_msr_low, vmx_msr_high);
-
-	ctl &= vmx_msr_high; /* bit == 0 in high word ==> must be zero */
-	ctl |= vmx_msr_low;  /* bit == 1 in low word  ==> must be one  */
-
-	/* Ensure minimum (required) set of control bits are supported. */
-	if (ctl_min & ~ctl)
-		return -EIO;
-
-	*result = ctl;
-	return 0;
-}
-
-static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
-{
-	u32 vmx_msr_low, vmx_msr_high;
-	u32 min, opt;
-	u32 _pin_based_exec_control = 0;
-	u32 _cpu_based_exec_control = 0;
-	u32 _cpu_based_2nd_exec_control = 0;
-	u32 _vmexit_control = 0;
-	u32 _vmentry_control = 0;
-
-	min = PIN_BASED_EXT_INTR_MASK | PIN_BASED_NMI_EXITING;
-	opt = 0;
-	if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_PINBASED_CTLS,
-				&_pin_based_exec_control) < 0)
-		return -EIO;
-
-	min = CPU_BASED_HLT_EXITING |
-#ifdef CONFIG_X86_64
-	      CPU_BASED_CR8_LOAD_EXITING |
-	      CPU_BASED_CR8_STORE_EXITING |
-#endif
-	      CPU_BASED_USE_IO_BITMAPS |
-	      CPU_BASED_MOV_DR_EXITING |
-	      CPU_BASED_USE_TSC_OFFSETING;
-	opt = CPU_BASED_TPR_SHADOW |
-	      CPU_BASED_ACTIVATE_SECONDARY_CONTROLS;
-	if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_PROCBASED_CTLS,
-				&_cpu_based_exec_control) < 0)
-		return -EIO;
-#ifdef CONFIG_X86_64
-	if ((_cpu_based_exec_control & CPU_BASED_TPR_SHADOW))
-		_cpu_based_exec_control &= ~CPU_BASED_CR8_LOAD_EXITING &
-					   ~CPU_BASED_CR8_STORE_EXITING;
-#endif
-	if (_cpu_based_exec_control & CPU_BASED_ACTIVATE_SECONDARY_CONTROLS) {
-		min = 0;
-		opt = SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
-			SECONDARY_EXEC_WBINVD_EXITING;
-		if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_PROCBASED_CTLS2,
-					&_cpu_based_2nd_exec_control) < 0)
-			return -EIO;
-	}
-#ifndef CONFIG_X86_64
-	if (!(_cpu_based_2nd_exec_control &
-				SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES))
-		_cpu_based_exec_control &= ~CPU_BASED_TPR_SHADOW;
-#endif
-
-	min = 0;
-#ifdef CONFIG_X86_64
-	min |= VM_EXIT_HOST_ADDR_SPACE_SIZE;
-#endif
-	opt = 0;
-	if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_EXIT_CTLS,
-				&_vmexit_control) < 0)
-		return -EIO;
-
-	min = opt = 0;
-	if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_ENTRY_CTLS,
-				&_vmentry_control) < 0)
-		return -EIO;
-
-	rdmsr(MSR_IA32_VMX_BASIC, vmx_msr_low, vmx_msr_high);
-
-	/* IA-32 SDM Vol 3B: VMCS size is never greater than 4kB. */
-	if ((vmx_msr_high & 0x1fff) > PAGE_SIZE)
-		return -EIO;
-
-#ifdef CONFIG_X86_64
-	/* IA-32 SDM Vol 3B: 64-bit CPUs always have VMX_BASIC_MSR[48]==0. */
-	if (vmx_msr_high & (1u<<16))
-		return -EIO;
-#endif
-
-	/* Require Write-Back (WB) memory type for VMCS accesses. */
-	if (((vmx_msr_high >> 18) & 15) != 6)
-		return -EIO;
-
-	vmcs_conf->size = vmx_msr_high & 0x1fff;
-	vmcs_conf->order = get_order(vmcs_config.size);
-	vmcs_conf->revision_id = vmx_msr_low;
-
-	vmcs_conf->pin_based_exec_ctrl = _pin_based_exec_control;
-	vmcs_conf->cpu_based_exec_ctrl = _cpu_based_exec_control;
-	vmcs_conf->cpu_based_2nd_exec_ctrl = _cpu_based_2nd_exec_control;
-	vmcs_conf->vmexit_ctrl         = _vmexit_control;
-	vmcs_conf->vmentry_ctrl        = _vmentry_control;
-
-	return 0;
-}
-
-static struct vmcs *alloc_vmcs_cpu(int cpu)
-{
-	int node = cpu_to_node(cpu);
-	struct page *pages;
-	struct vmcs *vmcs;
-
-	pages = alloc_pages_node(node, GFP_KERNEL, vmcs_config.order);
-	if (!pages)
-		return NULL;
-	vmcs = page_address(pages);
-	memset(vmcs, 0, vmcs_config.size);
-	vmcs->revision_id = vmcs_config.revision_id; /* vmcs revision id */
-	return vmcs;
-}
-
-static struct vmcs *alloc_vmcs(void)
-{
-	return alloc_vmcs_cpu(raw_smp_processor_id());
-}
-
-static void free_vmcs(struct vmcs *vmcs)
-{
-	free_pages((unsigned long)vmcs, vmcs_config.order);
-}
-
-static void free_kvm_area(void)
-{
-	int cpu;
-
-	for_each_online_cpu(cpu)
-		free_vmcs(per_cpu(vmxarea, cpu));
-}
-
-static __init int alloc_kvm_area(void)
-{
-	int cpu;
-
-	for_each_online_cpu(cpu) {
-		struct vmcs *vmcs;
-
-		vmcs = alloc_vmcs_cpu(cpu);
-		if (!vmcs) {
-			free_kvm_area();
-			return -ENOMEM;
-		}
-
-		per_cpu(vmxarea, cpu) = vmcs;
-	}
-	return 0;
-}
-
-static __init int hardware_setup(void)
-{
-	if (setup_vmcs_config(&vmcs_config) < 0)
-		return -EIO;
-	return alloc_kvm_area();
-}
-
-static __exit void hardware_unsetup(void)
-{
-	free_kvm_area();
-}
-
-static void fix_pmode_dataseg(int seg, struct kvm_save_segment *save)
-{
-	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
-
-	if (vmcs_readl(sf->base) == save->base && (save->base & AR_S_MASK)) {
-		vmcs_write16(sf->selector, save->selector);
-		vmcs_writel(sf->base, save->base);
-		vmcs_write32(sf->limit, save->limit);
-		vmcs_write32(sf->ar_bytes, save->ar);
-	} else {
-		u32 dpl = (vmcs_read16(sf->selector) & SELECTOR_RPL_MASK)
-			<< AR_DPL_SHIFT;
-		vmcs_write32(sf->ar_bytes, 0x93 | dpl);
-	}
-}
-
-static void enter_pmode(struct kvm_vcpu *vcpu)
-{
-	unsigned long flags;
-
-	vcpu->arch.rmode.active = 0;
-
-	vmcs_writel(GUEST_TR_BASE, vcpu->arch.rmode.tr.base);
-	vmcs_write32(GUEST_TR_LIMIT, vcpu->arch.rmode.tr.limit);
-	vmcs_write32(GUEST_TR_AR_BYTES, vcpu->arch.rmode.tr.ar);
-
-	flags = vmcs_readl(GUEST_RFLAGS);
-	flags &= ~(X86_EFLAGS_IOPL | X86_EFLAGS_VM);
-	flags |= (vcpu->arch.rmode.save_iopl << IOPL_SHIFT);
-	vmcs_writel(GUEST_RFLAGS, flags);
-
-	vmcs_writel(GUEST_CR4, (vmcs_readl(GUEST_CR4) & ~X86_CR4_VME) |
-			(vmcs_readl(CR4_READ_SHADOW) & X86_CR4_VME));
-
-	update_exception_bitmap(vcpu);
-
-	fix_pmode_dataseg(VCPU_SREG_ES, &vcpu->arch.rmode.es);
-	fix_pmode_dataseg(VCPU_SREG_DS, &vcpu->arch.rmode.ds);
-	fix_pmode_dataseg(VCPU_SREG_GS, &vcpu->arch.rmode.gs);
-	fix_pmode_dataseg(VCPU_SREG_FS, &vcpu->arch.rmode.fs);
-
-	vmcs_write16(GUEST_SS_SELECTOR, 0);
-	vmcs_write32(GUEST_SS_AR_BYTES, 0x93);
-
-	vmcs_write16(GUEST_CS_SELECTOR,
-		     vmcs_read16(GUEST_CS_SELECTOR) & ~SELECTOR_RPL_MASK);
-	vmcs_write32(GUEST_CS_AR_BYTES, 0x9b);
-}
-
-static gva_t rmode_tss_base(struct kvm *kvm)
-{
-	if (!kvm->arch.tss_addr) {
-		gfn_t base_gfn = kvm->memslots[0].base_gfn +
-				 kvm->memslots[0].npages - 3;
-		return base_gfn << PAGE_SHIFT;
-	}
-	return kvm->arch.tss_addr;
-}
-
-static void fix_rmode_seg(int seg, struct kvm_save_segment *save)
-{
-	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
-
-	save->selector = vmcs_read16(sf->selector);
-	save->base = vmcs_readl(sf->base);
-	save->limit = vmcs_read32(sf->limit);
-	save->ar = vmcs_read32(sf->ar_bytes);
-	vmcs_write16(sf->selector, save->base >> 4);
-	vmcs_write32(sf->base, save->base & 0xfffff);
-	vmcs_write32(sf->limit, 0xffff);
-	vmcs_write32(sf->ar_bytes, 0xf3);
-}
-
-static void enter_rmode(struct kvm_vcpu *vcpu)
-{
-	unsigned long flags;
-
-	vcpu->arch.rmode.active = 1;
-
-	vcpu->arch.rmode.tr.base = vmcs_readl(GUEST_TR_BASE);
-	vmcs_writel(GUEST_TR_BASE, rmode_tss_base(vcpu->kvm));
-
-	vcpu->arch.rmode.tr.limit = vmcs_read32(GUEST_TR_LIMIT);
-	vmcs_write32(GUEST_TR_LIMIT, RMODE_TSS_SIZE - 1);
-
-	vcpu->arch.rmode.tr.ar = vmcs_read32(GUEST_TR_AR_BYTES);
-	vmcs_write32(GUEST_TR_AR_BYTES, 0x008b);
-
-	flags = vmcs_readl(GUEST_RFLAGS);
-	vcpu->arch.rmode.save_iopl
-		= (flags & X86_EFLAGS_IOPL) >> IOPL_SHIFT;
-
-	flags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;
-
-	vmcs_writel(GUEST_RFLAGS, flags);
-	vmcs_writel(GUEST_CR4, vmcs_readl(GUEST_CR4) | X86_CR4_VME);
-	update_exception_bitmap(vcpu);
-
-	vmcs_write16(GUEST_SS_SELECTOR, vmcs_readl(GUEST_SS_BASE) >> 4);
-	vmcs_write32(GUEST_SS_LIMIT, 0xffff);
-	vmcs_write32(GUEST_SS_AR_BYTES, 0xf3);
-
-	vmcs_write32(GUEST_CS_AR_BYTES, 0xf3);
-	vmcs_write32(GUEST_CS_LIMIT, 0xffff);
-	if (vmcs_readl(GUEST_CS_BASE) == 0xffff0000)
-		vmcs_writel(GUEST_CS_BASE, 0xf0000);
-	vmcs_write16(GUEST_CS_SELECTOR, vmcs_readl(GUEST_CS_BASE) >> 4);
-
-	fix_rmode_seg(VCPU_SREG_ES, &vcpu->arch.rmode.es);
-	fix_rmode_seg(VCPU_SREG_DS, &vcpu->arch.rmode.ds);
-	fix_rmode_seg(VCPU_SREG_GS, &vcpu->arch.rmode.gs);
-	fix_rmode_seg(VCPU_SREG_FS, &vcpu->arch.rmode.fs);
-
-	kvm_mmu_reset_context(vcpu);
-	init_rmode_tss(vcpu->kvm);
-}
-
-#ifdef CONFIG_X86_64
-
-static void enter_lmode(struct kvm_vcpu *vcpu)
-{
-	u32 guest_tr_ar;
-
-	guest_tr_ar = vmcs_read32(GUEST_TR_AR_BYTES);
-	if ((guest_tr_ar & AR_TYPE_MASK) != AR_TYPE_BUSY_64_TSS) {
-		printk(KERN_DEBUG "%s: tss fixup for long mode. \n",
-		       __FUNCTION__);
-		vmcs_write32(GUEST_TR_AR_BYTES,
-			     (guest_tr_ar & ~AR_TYPE_MASK)
-			     | AR_TYPE_BUSY_64_TSS);
-	}
-
-	vcpu->arch.shadow_efer |= EFER_LMA;
-
-	find_msr_entry(to_vmx(vcpu), MSR_EFER)->data |= EFER_LMA | EFER_LME;
-	vmcs_write32(VM_ENTRY_CONTROLS,
-		     vmcs_read32(VM_ENTRY_CONTROLS)
-		     | VM_ENTRY_IA32E_MODE);
-}
-
-static void exit_lmode(struct kvm_vcpu *vcpu)
-{
-	vcpu->arch.shadow_efer &= ~EFER_LMA;
-
-	vmcs_write32(VM_ENTRY_CONTROLS,
-		     vmcs_read32(VM_ENTRY_CONTROLS)
-		     & ~VM_ENTRY_IA32E_MODE);
-}
-
-#endif
-
-static void vmx_decache_cr4_guest_bits(struct kvm_vcpu *vcpu)
-{
-	vcpu->arch.cr4 &= KVM_GUEST_CR4_MASK;
-	vcpu->arch.cr4 |= vmcs_readl(GUEST_CR4) & ~KVM_GUEST_CR4_MASK;
-}
-
-static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
-{
-	vmx_fpu_deactivate(vcpu);
-
-	if (vcpu->arch.rmode.active && (cr0 & X86_CR0_PE))
-		enter_pmode(vcpu);
-
-	if (!vcpu->arch.rmode.active && !(cr0 & X86_CR0_PE))
-		enter_rmode(vcpu);
-
-#ifdef CONFIG_X86_64
-	if (vcpu->arch.shadow_efer & EFER_LME) {
-		if (!is_paging(vcpu) && (cr0 & X86_CR0_PG))
-			enter_lmode(vcpu);
-		if (is_paging(vcpu) && !(cr0 & X86_CR0_PG))
-			exit_lmode(vcpu);
-	}
-#endif
-
-	vmcs_writel(CR0_READ_SHADOW, cr0);
-	vmcs_writel(GUEST_CR0,
-		    (cr0 & ~KVM_GUEST_CR0_MASK) | KVM_VM_CR0_ALWAYS_ON);
-	vcpu->arch.cr0 = cr0;
-
-	if (!(cr0 & X86_CR0_TS) || !(cr0 & X86_CR0_PE))
-		vmx_fpu_activate(vcpu);
-}
-
-static void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
-{
-	vmcs_writel(GUEST_CR3, cr3);
-	if (vcpu->arch.cr0 & X86_CR0_PE)
-		vmx_fpu_deactivate(vcpu);
-}
-
-static void vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
-{
-	vmcs_writel(CR4_READ_SHADOW, cr4);
-	vmcs_writel(GUEST_CR4, cr4 | (vcpu->arch.rmode.active ?
-		    KVM_RMODE_VM_CR4_ALWAYS_ON : KVM_PMODE_VM_CR4_ALWAYS_ON));
-	vcpu->arch.cr4 = cr4;
-}
-
-#ifdef CONFIG_X86_64
-
-static void vmx_set_efer(struct kvm_vcpu *vcpu, u64 efer)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	struct kvm_msr_entry *msr = find_msr_entry(vmx, MSR_EFER);
-
-	vcpu->arch.shadow_efer = efer;
-	if (efer & EFER_LMA) {
-		vmcs_write32(VM_ENTRY_CONTROLS,
-				     vmcs_read32(VM_ENTRY_CONTROLS) |
-				     VM_ENTRY_IA32E_MODE);
-		msr->data = efer;
-
-	} else {
-		vmcs_write32(VM_ENTRY_CONTROLS,
-				     vmcs_read32(VM_ENTRY_CONTROLS) &
-				     ~VM_ENTRY_IA32E_MODE);
-
-		msr->data = efer & ~EFER_LME;
-	}
-	setup_msrs(vmx);
-}
-
-#endif
-
-static u64 vmx_get_segment_base(struct kvm_vcpu *vcpu, int seg)
-{
-	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
-
-	return vmcs_readl(sf->base);
-}
-
-static void vmx_get_segment(struct kvm_vcpu *vcpu,
-			    struct kvm_segment *var, int seg)
-{
-	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
-	u32 ar;
-
-	var->base = vmcs_readl(sf->base);
-	var->limit = vmcs_read32(sf->limit);
-	var->selector = vmcs_read16(sf->selector);
-	ar = vmcs_read32(sf->ar_bytes);
-	if (ar & AR_UNUSABLE_MASK)
-		ar = 0;
-	var->type = ar & 15;
-	var->s = (ar >> 4) & 1;
-	var->dpl = (ar >> 5) & 3;
-	var->present = (ar >> 7) & 1;
-	var->avl = (ar >> 12) & 1;
-	var->l = (ar >> 13) & 1;
-	var->db = (ar >> 14) & 1;
-	var->g = (ar >> 15) & 1;
-	var->unusable = (ar >> 16) & 1;
-}
-
-static u32 vmx_segment_access_rights(struct kvm_segment *var)
-{
-	u32 ar;
-
-	if (var->unusable)
-		ar = 1 << 16;
-	else {
-		ar = var->type & 15;
-		ar |= (var->s & 1) << 4;
-		ar |= (var->dpl & 3) << 5;
-		ar |= (var->present & 1) << 7;
-		ar |= (var->avl & 1) << 12;
-		ar |= (var->l & 1) << 13;
-		ar |= (var->db & 1) << 14;
-		ar |= (var->g & 1) << 15;
-	}
-	if (ar == 0) /* a 0 value means unusable */
-		ar = AR_UNUSABLE_MASK;
-
-	return ar;
-}
-
-static void vmx_set_segment(struct kvm_vcpu *vcpu,
-			    struct kvm_segment *var, int seg)
-{
-	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
-	u32 ar;
-
-	if (vcpu->arch.rmode.active && seg == VCPU_SREG_TR) {
-		vcpu->arch.rmode.tr.selector = var->selector;
-		vcpu->arch.rmode.tr.base = var->base;
-		vcpu->arch.rmode.tr.limit = var->limit;
-		vcpu->arch.rmode.tr.ar = vmx_segment_access_rights(var);
-		return;
-	}
-	vmcs_writel(sf->base, var->base);
-	vmcs_write32(sf->limit, var->limit);
-	vmcs_write16(sf->selector, var->selector);
-	if (vcpu->arch.rmode.active && var->s) {
-		/*
-		 * Hack real-mode segments into vm86 compatibility.
-		 */
-		if (var->base == 0xffff0000 && var->selector == 0xf000)
-			vmcs_writel(sf->base, 0xf0000);
-		ar = 0xf3;
-	} else
-		ar = vmx_segment_access_rights(var);
-	vmcs_write32(sf->ar_bytes, ar);
-}
-
-static void vmx_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l)
-{
-	u32 ar = vmcs_read32(GUEST_CS_AR_BYTES);
-
-	*db = (ar >> 14) & 1;
-	*l = (ar >> 13) & 1;
-}
-
-static void vmx_get_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
-{
-	dt->limit = vmcs_read32(GUEST_IDTR_LIMIT);
-	dt->base = vmcs_readl(GUEST_IDTR_BASE);
-}
-
-static void vmx_set_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
-{
-	vmcs_write32(GUEST_IDTR_LIMIT, dt->limit);
-	vmcs_writel(GUEST_IDTR_BASE, dt->base);
-}
-
-static void vmx_get_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
-{
-	dt->limit = vmcs_read32(GUEST_GDTR_LIMIT);
-	dt->base = vmcs_readl(GUEST_GDTR_BASE);
-}
-
-static void vmx_set_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
-{
-	vmcs_write32(GUEST_GDTR_LIMIT, dt->limit);
-	vmcs_writel(GUEST_GDTR_BASE, dt->base);
-}
-
-static int init_rmode_tss(struct kvm *kvm)
-{
-	gfn_t fn = rmode_tss_base(kvm) >> PAGE_SHIFT;
-	u16 data = 0;
-	int r;
-
-	r = kvm_clear_guest_page(kvm, fn, 0, PAGE_SIZE);
-	if (r < 0)
-		return 0;
-	data = TSS_BASE_SIZE + TSS_REDIRECTION_SIZE;
-	r = kvm_write_guest_page(kvm, fn++, &data, 0x66, sizeof(u16));
-	if (r < 0)
-		return 0;
-	r = kvm_clear_guest_page(kvm, fn++, 0, PAGE_SIZE);
-	if (r < 0)
-		return 0;
-	r = kvm_clear_guest_page(kvm, fn, 0, PAGE_SIZE);
-	if (r < 0)
-		return 0;
-	data = ~0;
-	r = kvm_write_guest_page(kvm, fn, &data, RMODE_TSS_SIZE - 2 * PAGE_SIZE - 1,
-			sizeof(u8));
-	if (r < 0)
-		return 0;
-	return 1;
-}
-
-static void seg_setup(int seg)
-{
-	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
-
-	vmcs_write16(sf->selector, 0);
-	vmcs_writel(sf->base, 0);
-	vmcs_write32(sf->limit, 0xffff);
-	vmcs_write32(sf->ar_bytes, 0x93);
-}
-
-static int alloc_apic_access_page(struct kvm *kvm)
-{
-	struct kvm_userspace_memory_region kvm_userspace_mem;
-	int r = 0;
-
-	mutex_lock(&kvm->lock);
-	if (kvm->arch.apic_access_page)
-		goto out;
-	kvm_userspace_mem.slot = APIC_ACCESS_PAGE_PRIVATE_MEMSLOT;
-	kvm_userspace_mem.flags = 0;
-	kvm_userspace_mem.guest_phys_addr = 0xfee00000ULL;
-	kvm_userspace_mem.memory_size = PAGE_SIZE;
-	r = __kvm_set_memory_region(kvm, &kvm_userspace_mem, 0);
-	if (r)
-		goto out;
-	kvm->arch.apic_access_page = gfn_to_page(kvm, 0xfee00);
-out:
-	mutex_unlock(&kvm->lock);
-	return r;
-}
-
-/*
- * Sets up the vmcs for emulated real mode.
- */
-static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
-{
-	u32 host_sysenter_cs;
-	u32 junk;
-	unsigned long a;
-	struct descriptor_table dt;
-	int i;
-	unsigned long kvm_vmx_return;
-	u32 exec_control;
-
-	/* I/O */
-	vmcs_write64(IO_BITMAP_A, page_to_phys(vmx_io_bitmap_a));
-	vmcs_write64(IO_BITMAP_B, page_to_phys(vmx_io_bitmap_b));
-
-	vmcs_write64(VMCS_LINK_POINTER, -1ull); /* 22.3.1.5 */
-
-	/* Control */
-	vmcs_write32(PIN_BASED_VM_EXEC_CONTROL,
-		vmcs_config.pin_based_exec_ctrl);
-
-	exec_control = vmcs_config.cpu_based_exec_ctrl;
-	if (!vm_need_tpr_shadow(vmx->vcpu.kvm)) {
-		exec_control &= ~CPU_BASED_TPR_SHADOW;
-#ifdef CONFIG_X86_64
-		exec_control |= CPU_BASED_CR8_STORE_EXITING |
-				CPU_BASED_CR8_LOAD_EXITING;
-#endif
-	}
-	vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, exec_control);
-
-	if (cpu_has_secondary_exec_ctrls()) {
-		exec_control = vmcs_config.cpu_based_2nd_exec_ctrl;
-		if (!vm_need_virtualize_apic_accesses(vmx->vcpu.kvm))
-			exec_control &=
-				~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
-		vmcs_write32(SECONDARY_VM_EXEC_CONTROL, exec_control);
-	}
-
-	vmcs_write32(PAGE_FAULT_ERROR_CODE_MASK, !!bypass_guest_pf);
-	vmcs_write32(PAGE_FAULT_ERROR_CODE_MATCH, !!bypass_guest_pf);
-	vmcs_write32(CR3_TARGET_COUNT, 0);           /* 22.2.1 */
-
-	vmcs_writel(HOST_CR0, read_cr0());  /* 22.2.3 */
-	vmcs_writel(HOST_CR4, read_cr4());  /* 22.2.3, 22.2.5 */
-	vmcs_writel(HOST_CR3, read_cr3());  /* 22.2.3  FIXME: shadow tables */
-
-	vmcs_write16(HOST_CS_SELECTOR, __KERNEL_CS);  /* 22.2.4 */
-	vmcs_write16(HOST_DS_SELECTOR, __KERNEL_DS);  /* 22.2.4 */
-	vmcs_write16(HOST_ES_SELECTOR, __KERNEL_DS);  /* 22.2.4 */
-	vmcs_write16(HOST_FS_SELECTOR, read_fs());    /* 22.2.4 */
-	vmcs_write16(HOST_GS_SELECTOR, read_gs());    /* 22.2.4 */
-	vmcs_write16(HOST_SS_SELECTOR, __KERNEL_DS);  /* 22.2.4 */
-#ifdef CONFIG_X86_64
-	rdmsrl(MSR_FS_BASE, a);
-	vmcs_writel(HOST_FS_BASE, a); /* 22.2.4 */
-	rdmsrl(MSR_GS_BASE, a);
-	vmcs_writel(HOST_GS_BASE, a); /* 22.2.4 */
-#else
-	vmcs_writel(HOST_FS_BASE, 0); /* 22.2.4 */
-	vmcs_writel(HOST_GS_BASE, 0); /* 22.2.4 */
-#endif
-
-	vmcs_write16(HOST_TR_SELECTOR, GDT_ENTRY_TSS*8);  /* 22.2.4 */
-
-	get_idt(&dt);
-	vmcs_writel(HOST_IDTR_BASE, dt.base);   /* 22.2.4 */
-
-	asm("mov $.Lkvm_vmx_return, %0" : "=r"(kvm_vmx_return));
-	vmcs_writel(HOST_RIP, kvm_vmx_return); /* 22.2.5 */
-	vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0);
-	vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0);
-	vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, 0);
-
-	rdmsr(MSR_IA32_SYSENTER_CS, host_sysenter_cs, junk);
-	vmcs_write32(HOST_IA32_SYSENTER_CS, host_sysenter_cs);
-	rdmsrl(MSR_IA32_SYSENTER_ESP, a);
-	vmcs_writel(HOST_IA32_SYSENTER_ESP, a);   /* 22.2.3 */
-	rdmsrl(MSR_IA32_SYSENTER_EIP, a);
-	vmcs_writel(HOST_IA32_SYSENTER_EIP, a);   /* 22.2.3 */
-
-	for (i = 0; i < NR_VMX_MSR; ++i) {
-		u32 index = vmx_msr_index[i];
-		u32 data_low, data_high;
-		u64 data;
-		int j = vmx->nmsrs;
-
-		if (rdmsr_safe(index, &data_low, &data_high) < 0)
-			continue;
-		if (wrmsr_safe(index, data_low, data_high) < 0)
-			continue;
-		data = data_low | ((u64)data_high << 32);
-		vmx->host_msrs[j].index = index;
-		vmx->host_msrs[j].reserved = 0;
-		vmx->host_msrs[j].data = data;
-		vmx->guest_msrs[j] = vmx->host_msrs[j];
-		++vmx->nmsrs;
-	}
-
-	vmcs_write32(VM_EXIT_CONTROLS, vmcs_config.vmexit_ctrl);
-
-	/* 22.2.1, 20.8.1 */
-	vmcs_write32(VM_ENTRY_CONTROLS, vmcs_config.vmentry_ctrl);
-
-	vmcs_writel(CR0_GUEST_HOST_MASK, ~0UL);
-	vmcs_writel(CR4_GUEST_HOST_MASK, KVM_GUEST_CR4_MASK);
-
-	if (vm_need_virtualize_apic_accesses(vmx->vcpu.kvm))
-		if (alloc_apic_access_page(vmx->vcpu.kvm) != 0)
-			return -ENOMEM;
-
-	return 0;
-}
-
-static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	u64 msr;
-	int ret;
-
-	if (!init_rmode_tss(vmx->vcpu.kvm)) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	vmx->vcpu.arch.rmode.active = 0;
-
-	vmx->vcpu.arch.regs[VCPU_REGS_RDX] = get_rdx_init_val();
-	set_cr8(&vmx->vcpu, 0);
-	msr = 0xfee00000 | MSR_IA32_APICBASE_ENABLE;
-	if (vmx->vcpu.vcpu_id == 0)
-		msr |= MSR_IA32_APICBASE_BSP;
-	kvm_set_apic_base(&vmx->vcpu, msr);
-
-	fx_init(&vmx->vcpu);
-
-	/*
-	 * GUEST_CS_BASE should really be 0xffff0000, but VT vm86 mode
-	 * insists on having GUEST_CS_BASE == GUEST_CS_SELECTOR << 4.  Sigh.
-	 */
-	if (vmx->vcpu.vcpu_id == 0) {
-		vmcs_write16(GUEST_CS_SELECTOR, 0xf000);
-		vmcs_writel(GUEST_CS_BASE, 0x000f0000);
-	} else {
-		vmcs_write16(GUEST_CS_SELECTOR, vmx->vcpu.arch.sipi_vector << 8);
-		vmcs_writel(GUEST_CS_BASE, vmx->vcpu.arch.sipi_vector << 12);
-	}
-	vmcs_write32(GUEST_CS_LIMIT, 0xffff);
-	vmcs_write32(GUEST_CS_AR_BYTES, 0x9b);
-
-	seg_setup(VCPU_SREG_DS);
-	seg_setup(VCPU_SREG_ES);
-	seg_setup(VCPU_SREG_FS);
-	seg_setup(VCPU_SREG_GS);
-	seg_setup(VCPU_SREG_SS);
-
-	vmcs_write16(GUEST_TR_SELECTOR, 0);
-	vmcs_writel(GUEST_TR_BASE, 0);
-	vmcs_write32(GUEST_TR_LIMIT, 0xffff);
-	vmcs_write32(GUEST_TR_AR_BYTES, 0x008b);
-
-	vmcs_write16(GUEST_LDTR_SELECTOR, 0);
-	vmcs_writel(GUEST_LDTR_BASE, 0);
-	vmcs_write32(GUEST_LDTR_LIMIT, 0xffff);
-	vmcs_write32(GUEST_LDTR_AR_BYTES, 0x00082);
-
-	vmcs_write32(GUEST_SYSENTER_CS, 0);
-	vmcs_writel(GUEST_SYSENTER_ESP, 0);
-	vmcs_writel(GUEST_SYSENTER_EIP, 0);
-
-	vmcs_writel(GUEST_RFLAGS, 0x02);
-	if (vmx->vcpu.vcpu_id == 0)
-		vmcs_writel(GUEST_RIP, 0xfff0);
-	else
-		vmcs_writel(GUEST_RIP, 0);
-	vmcs_writel(GUEST_RSP, 0);
-
-	/* todo: dr0 = dr1 = dr2 = dr3 = 0; dr6 = 0xffff0ff0 */
-	vmcs_writel(GUEST_DR7, 0x400);
-
-	vmcs_writel(GUEST_GDTR_BASE, 0);
-	vmcs_write32(GUEST_GDTR_LIMIT, 0xffff);
-
-	vmcs_writel(GUEST_IDTR_BASE, 0);
-	vmcs_write32(GUEST_IDTR_LIMIT, 0xffff);
-
-	vmcs_write32(GUEST_ACTIVITY_STATE, 0);
-	vmcs_write32(GUEST_INTERRUPTIBILITY_INFO, 0);
-	vmcs_write32(GUEST_PENDING_DBG_EXCEPTIONS, 0);
-
-	guest_write_tsc(0);
-
-	/* Special registers */
-	vmcs_write64(GUEST_IA32_DEBUGCTL, 0);
-
-	setup_msrs(vmx);
-
-	vmcs_write32(VM_ENTRY_INTR_INFO_FIELD, 0);  /* 22.2.1 */
-
-	if (cpu_has_vmx_tpr_shadow()) {
-		vmcs_write64(VIRTUAL_APIC_PAGE_ADDR, 0);
-		if (vm_need_tpr_shadow(vmx->vcpu.kvm))
-			vmcs_write64(VIRTUAL_APIC_PAGE_ADDR,
-				page_to_phys(vmx->vcpu.arch.apic->regs_page));
-		vmcs_write32(TPR_THRESHOLD, 0);
-	}
-
-	if (vm_need_virtualize_apic_accesses(vmx->vcpu.kvm))
-		vmcs_write64(APIC_ACCESS_ADDR,
-			     page_to_phys(vmx->vcpu.kvm->arch.apic_access_page));
-
-	vmx->vcpu.arch.cr0 = 0x60000010;
-	vmx_set_cr0(&vmx->vcpu, vmx->vcpu.arch.cr0); /* enter rmode */
-	vmx_set_cr4(&vmx->vcpu, 0);
-#ifdef CONFIG_X86_64
-	vmx_set_efer(&vmx->vcpu, 0);
-#endif
-	vmx_fpu_activate(&vmx->vcpu);
-	update_exception_bitmap(&vmx->vcpu);
-
-	return 0;
-
-out:
-	return ret;
-}
-
-static void vmx_inject_irq(struct kvm_vcpu *vcpu, int irq)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-
-	if (vcpu->arch.rmode.active) {
-		vmx->rmode.irq.pending = true;
-		vmx->rmode.irq.vector = irq;
-		vmx->rmode.irq.rip = vmcs_readl(GUEST_RIP);
-		vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,
-			     irq | INTR_TYPE_SOFT_INTR | INTR_INFO_VALID_MASK);
-		vmcs_write32(VM_ENTRY_INSTRUCTION_LEN, 1);
-		vmcs_writel(GUEST_RIP, vmx->rmode.irq.rip - 1);
-		return;
-	}
-	vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,
-			irq | INTR_TYPE_EXT_INTR | INTR_INFO_VALID_MASK);
-}
-
-static void kvm_do_inject_irq(struct kvm_vcpu *vcpu)
-{
-	int word_index = __ffs(vcpu->arch.irq_summary);
-	int bit_index = __ffs(vcpu->arch.irq_pending[word_index]);
-	int irq = word_index * BITS_PER_LONG + bit_index;
-
-	clear_bit(bit_index, &vcpu->arch.irq_pending[word_index]);
-	if (!vcpu->arch.irq_pending[word_index])
-		clear_bit(word_index, &vcpu->arch.irq_summary);
-	vmx_inject_irq(vcpu, irq);
-}
-
-
-static void do_interrupt_requests(struct kvm_vcpu *vcpu,
-				       struct kvm_run *kvm_run)
-{
-	u32 cpu_based_vm_exec_control;
-
-	vcpu->arch.interrupt_window_open =
-		((vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_IF) &&
-		 (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & 3) == 0);
-
-	if (vcpu->arch.interrupt_window_open &&
-	    vcpu->arch.irq_summary &&
-	    !(vmcs_read32(VM_ENTRY_INTR_INFO_FIELD) & INTR_INFO_VALID_MASK))
-		/*
-		 * If interrupts enabled, and not blocked by sti or mov ss. Good.
-		 */
-		kvm_do_inject_irq(vcpu);
-
-	cpu_based_vm_exec_control = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL);
-	if (!vcpu->arch.interrupt_window_open &&
-	    (vcpu->arch.irq_summary || kvm_run->request_interrupt_window))
-		/*
-		 * Interrupts blocked.  Wait for unblock.
-		 */
-		cpu_based_vm_exec_control |= CPU_BASED_VIRTUAL_INTR_PENDING;
-	else
-		cpu_based_vm_exec_control &= ~CPU_BASED_VIRTUAL_INTR_PENDING;
-	vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, cpu_based_vm_exec_control);
-}
-
-static int vmx_set_tss_addr(struct kvm *kvm, unsigned int addr)
-{
-	int ret;
-	struct kvm_userspace_memory_region tss_mem = {
-		.slot = 8,
-		.guest_phys_addr = addr,
-		.memory_size = PAGE_SIZE * 3,
-		.flags = 0,
-	};
-
-	ret = kvm_set_memory_region(kvm, &tss_mem, 0);
-	if (ret)
-		return ret;
-	kvm->arch.tss_addr = addr;
-	return 0;
-}
-
-static void kvm_guest_debug_pre(struct kvm_vcpu *vcpu)
-{
-	struct kvm_guest_debug *dbg = &vcpu->guest_debug;
-
-	set_debugreg(dbg->bp[0], 0);
-	set_debugreg(dbg->bp[1], 1);
-	set_debugreg(dbg->bp[2], 2);
-	set_debugreg(dbg->bp[3], 3);
-
-	if (dbg->singlestep) {
-		unsigned long flags;
-
-		flags = vmcs_readl(GUEST_RFLAGS);
-		flags |= X86_EFLAGS_TF | X86_EFLAGS_RF;
-		vmcs_writel(GUEST_RFLAGS, flags);
-	}
-}
-
-static int handle_rmode_exception(struct kvm_vcpu *vcpu,
-				  int vec, u32 err_code)
-{
-	if (!vcpu->arch.rmode.active)
-		return 0;
-
-	/*
-	 * Instruction with address size override prefix opcode 0x67
-	 * Cause the #SS fault with 0 error code in VM86 mode.
-	 */
-	if (((vec == GP_VECTOR) || (vec == SS_VECTOR)) && err_code == 0)
-		if (emulate_instruction(vcpu, NULL, 0, 0, 0) == EMULATE_DONE)
-			return 1;
-	return 0;
-}
-
-static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	u32 intr_info, error_code;
-	unsigned long cr2, rip;
-	u32 vect_info;
-	enum emulation_result er;
-
-	vect_info = vmx->idt_vectoring_info;
-	intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
-
-	if ((vect_info & VECTORING_INFO_VALID_MASK) &&
-						!is_page_fault(intr_info))
-		printk(KERN_ERR "%s: unexpected, vectoring info 0x%x "
-		       "intr info 0x%x\n", __FUNCTION__, vect_info, intr_info);
-
-	if (!irqchip_in_kernel(vcpu->kvm) && is_external_interrupt(vect_info)) {
-		int irq = vect_info & VECTORING_INFO_VECTOR_MASK;
-		set_bit(irq, vcpu->arch.irq_pending);
-		set_bit(irq / BITS_PER_LONG, &vcpu->arch.irq_summary);
-	}
-
-	if ((intr_info & INTR_INFO_INTR_TYPE_MASK) == 0x200) /* nmi */
-		return 1;  /* already handled by vmx_vcpu_run() */
-
-	if (is_no_device(intr_info)) {
-		vmx_fpu_activate(vcpu);
-		return 1;
-	}
-
-	if (is_invalid_opcode(intr_info)) {
-		er = emulate_instruction(vcpu, kvm_run, 0, 0, 0);
-		if (er != EMULATE_DONE)
-			kvm_queue_exception(vcpu, UD_VECTOR);
-		return 1;
-	}
-
-	error_code = 0;
-	rip = vmcs_readl(GUEST_RIP);
-	if (intr_info & INTR_INFO_DELIEVER_CODE_MASK)
-		error_code = vmcs_read32(VM_EXIT_INTR_ERROR_CODE);
-	if (is_page_fault(intr_info)) {
-		cr2 = vmcs_readl(EXIT_QUALIFICATION);
-		return kvm_mmu_page_fault(vcpu, cr2, error_code);
-	}
-
-	if (vcpu->arch.rmode.active &&
-	    handle_rmode_exception(vcpu, intr_info & INTR_INFO_VECTOR_MASK,
-								error_code)) {
-		if (vcpu->arch.halt_request) {
-			vcpu->arch.halt_request = 0;
-			return kvm_emulate_halt(vcpu);
-		}
-		return 1;
-	}
-
-	if ((intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK)) ==
-	    (INTR_TYPE_EXCEPTION | 1)) {
-		kvm_run->exit_reason = KVM_EXIT_DEBUG;
-		return 0;
-	}
-	kvm_run->exit_reason = KVM_EXIT_EXCEPTION;
-	kvm_run->ex.exception = intr_info & INTR_INFO_VECTOR_MASK;
-	kvm_run->ex.error_code = error_code;
-	return 0;
-}
-
-static int handle_external_interrupt(struct kvm_vcpu *vcpu,
-				     struct kvm_run *kvm_run)
-{
-	++vcpu->stat.irq_exits;
-	return 1;
-}
-
-static int handle_triple_fault(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	kvm_run->exit_reason = KVM_EXIT_SHUTDOWN;
-	return 0;
-}
-
-static int handle_io(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	unsigned long exit_qualification;
-	int size, down, in, string, rep;
-	unsigned port;
-
-	++vcpu->stat.io_exits;
-	exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
-	string = (exit_qualification & 16) != 0;
-
-	if (string) {
-		if (emulate_instruction(vcpu,
-					kvm_run, 0, 0, 0) == EMULATE_DO_MMIO)
-			return 0;
-		return 1;
-	}
-
-	size = (exit_qualification & 7) + 1;
-	in = (exit_qualification & 8) != 0;
-	down = (vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_DF) != 0;
-	rep = (exit_qualification & 32) != 0;
-	port = exit_qualification >> 16;
-
-	return kvm_emulate_pio(vcpu, kvm_run, in, size, port);
-}
-
-static void
-vmx_patch_hypercall(struct kvm_vcpu *vcpu, unsigned char *hypercall)
-{
-	/*
-	 * Patch in the VMCALL instruction:
-	 */
-	hypercall[0] = 0x0f;
-	hypercall[1] = 0x01;
-	hypercall[2] = 0xc1;
-}
-
-static int handle_cr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	unsigned long exit_qualification;
-	int cr;
-	int reg;
-
-	exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
-	cr = exit_qualification & 15;
-	reg = (exit_qualification >> 8) & 15;
-	switch ((exit_qualification >> 4) & 3) {
-	case 0: /* mov to cr */
-		switch (cr) {
-		case 0:
-			vcpu_load_rsp_rip(vcpu);
-			set_cr0(vcpu, vcpu->arch.regs[reg]);
-			skip_emulated_instruction(vcpu);
-			return 1;
-		case 3:
-			vcpu_load_rsp_rip(vcpu);
-			set_cr3(vcpu, vcpu->arch.regs[reg]);
-			skip_emulated_instruction(vcpu);
-			return 1;
-		case 4:
-			vcpu_load_rsp_rip(vcpu);
-			set_cr4(vcpu, vcpu->arch.regs[reg]);
-			skip_emulated_instruction(vcpu);
-			return 1;
-		case 8:
-			vcpu_load_rsp_rip(vcpu);
-			set_cr8(vcpu, vcpu->arch.regs[reg]);
-			skip_emulated_instruction(vcpu);
-			if (irqchip_in_kernel(vcpu->kvm))
-				return 1;
-			kvm_run->exit_reason = KVM_EXIT_SET_TPR;
-			return 0;
-		};
-		break;
-	case 2: /* clts */
-		vcpu_load_rsp_rip(vcpu);
-		vmx_fpu_deactivate(vcpu);
-		vcpu->arch.cr0 &= ~X86_CR0_TS;
-		vmcs_writel(CR0_READ_SHADOW, vcpu->arch.cr0);
-		vmx_fpu_activate(vcpu);
-		skip_emulated_instruction(vcpu);
-		return 1;
-	case 1: /*mov from cr*/
-		switch (cr) {
-		case 3:
-			vcpu_load_rsp_rip(vcpu);
-			vcpu->arch.regs[reg] = vcpu->arch.cr3;
-			vcpu_put_rsp_rip(vcpu);
-			skip_emulated_instruction(vcpu);
-			return 1;
-		case 8:
-			vcpu_load_rsp_rip(vcpu);
-			vcpu->arch.regs[reg] = get_cr8(vcpu);
-			vcpu_put_rsp_rip(vcpu);
-			skip_emulated_instruction(vcpu);
-			return 1;
-		}
-		break;
-	case 3: /* lmsw */
-		lmsw(vcpu, (exit_qualification >> LMSW_SOURCE_DATA_SHIFT) & 0x0f);
-
-		skip_emulated_instruction(vcpu);
-		return 1;
-	default:
-		break;
-	}
-	kvm_run->exit_reason = 0;
-	pr_unimpl(vcpu, "unhandled control register: op %d cr %d\n",
-	       (int)(exit_qualification >> 4) & 3, cr);
-	return 0;
-}
-
-static int handle_dr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	unsigned long exit_qualification;
-	unsigned long val;
-	int dr, reg;
-
-	/*
-	 * FIXME: this code assumes the host is debugging the guest.
-	 *        need to deal with guest debugging itself too.
-	 */
-	exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
-	dr = exit_qualification & 7;
-	reg = (exit_qualification >> 8) & 15;
-	vcpu_load_rsp_rip(vcpu);
-	if (exit_qualification & 16) {
-		/* mov from dr */
-		switch (dr) {
-		case 6:
-			val = 0xffff0ff0;
-			break;
-		case 7:
-			val = 0x400;
-			break;
-		default:
-			val = 0;
-		}
-		vcpu->arch.regs[reg] = val;
-	} else {
-		/* mov to dr */
-	}
-	vcpu_put_rsp_rip(vcpu);
-	skip_emulated_instruction(vcpu);
-	return 1;
-}
-
-static int handle_cpuid(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	kvm_emulate_cpuid(vcpu);
-	return 1;
-}
-
-static int handle_rdmsr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	u32 ecx = vcpu->arch.regs[VCPU_REGS_RCX];
-	u64 data;
-
-	if (vmx_get_msr(vcpu, ecx, &data)) {
-		kvm_inject_gp(vcpu, 0);
-		return 1;
-	}
-
-	/* FIXME: handling of bits 32:63 of rax, rdx */
-	vcpu->arch.regs[VCPU_REGS_RAX] = data & -1u;
-	vcpu->arch.regs[VCPU_REGS_RDX] = (data >> 32) & -1u;
-	skip_emulated_instruction(vcpu);
-	return 1;
-}
-
-static int handle_wrmsr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	u32 ecx = vcpu->arch.regs[VCPU_REGS_RCX];
-	u64 data = (vcpu->arch.regs[VCPU_REGS_RAX] & -1u)
-		| ((u64)(vcpu->arch.regs[VCPU_REGS_RDX] & -1u) << 32);
-
-	if (vmx_set_msr(vcpu, ecx, data) != 0) {
-		kvm_inject_gp(vcpu, 0);
-		return 1;
-	}
-
-	skip_emulated_instruction(vcpu);
-	return 1;
-}
-
-static int handle_tpr_below_threshold(struct kvm_vcpu *vcpu,
-				      struct kvm_run *kvm_run)
-{
-	return 1;
-}
-
-static int handle_interrupt_window(struct kvm_vcpu *vcpu,
-				   struct kvm_run *kvm_run)
-{
-	u32 cpu_based_vm_exec_control;
-
-	/* clear pending irq */
-	cpu_based_vm_exec_control = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL);
-	cpu_based_vm_exec_control &= ~CPU_BASED_VIRTUAL_INTR_PENDING;
-	vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, cpu_based_vm_exec_control);
-	/*
-	 * If the user space waits to inject interrupts, exit as soon as
-	 * possible
-	 */
-	if (kvm_run->request_interrupt_window &&
-	    !vcpu->arch.irq_summary) {
-		kvm_run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN;
-		++vcpu->stat.irq_window_exits;
-		return 0;
-	}
-	return 1;
-}
-
-static int handle_halt(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	skip_emulated_instruction(vcpu);
-	return kvm_emulate_halt(vcpu);
-}
-
-static int handle_vmcall(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	skip_emulated_instruction(vcpu);
-	kvm_emulate_hypercall(vcpu);
-	return 1;
-}
-
-static int handle_wbinvd(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	skip_emulated_instruction(vcpu);
-	/* TODO: Add support for VT-d/pass-through device */
-	return 1;
-}
-
-static int handle_apic_access(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	u64 exit_qualification;
-	enum emulation_result er;
-	unsigned long offset;
-
-	exit_qualification = vmcs_read64(EXIT_QUALIFICATION);
-	offset = exit_qualification & 0xffful;
-
-	er = emulate_instruction(vcpu, kvm_run, 0, 0, 0);
-
-	if (er !=  EMULATE_DONE) {
-		printk(KERN_ERR
-		       "Fail to handle apic access vmexit! Offset is 0x%lx\n",
-		       offset);
-		return -ENOTSUPP;
-	}
-	return 1;
-}
-
-/*
- * The exit handlers return 1 if the exit was handled fully and guest execution
- * may resume.  Otherwise they set the kvm_run parameter to indicate what needs
- * to be done to userspace and return 0.
- */
-static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu,
-				      struct kvm_run *kvm_run) = {
-	[EXIT_REASON_EXCEPTION_NMI]           = handle_exception,
-	[EXIT_REASON_EXTERNAL_INTERRUPT]      = handle_external_interrupt,
-	[EXIT_REASON_TRIPLE_FAULT]            = handle_triple_fault,
-	[EXIT_REASON_IO_INSTRUCTION]          = handle_io,
-	[EXIT_REASON_CR_ACCESS]               = handle_cr,
-	[EXIT_REASON_DR_ACCESS]               = handle_dr,
-	[EXIT_REASON_CPUID]                   = handle_cpuid,
-	[EXIT_REASON_MSR_READ]                = handle_rdmsr,
-	[EXIT_REASON_MSR_WRITE]               = handle_wrmsr,
-	[EXIT_REASON_PENDING_INTERRUPT]       = handle_interrupt_window,
-	[EXIT_REASON_HLT]                     = handle_halt,
-	[EXIT_REASON_VMCALL]                  = handle_vmcall,
-	[EXIT_REASON_TPR_BELOW_THRESHOLD]     = handle_tpr_below_threshold,
-	[EXIT_REASON_APIC_ACCESS]             = handle_apic_access,
-	[EXIT_REASON_WBINVD]                  = handle_wbinvd,
-};
-
-static const int kvm_vmx_max_exit_handlers =
-	ARRAY_SIZE(kvm_vmx_exit_handlers);
-
-/*
- * The guest has exited.  See if we can fix it or if we need userspace
- * assistance.
- */
-static int kvm_handle_exit(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
-{
-	u32 exit_reason = vmcs_read32(VM_EXIT_REASON);
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	u32 vectoring_info = vmx->idt_vectoring_info;
-
-	if (unlikely(vmx->fail)) {
-		kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY;
-		kvm_run->fail_entry.hardware_entry_failure_reason
-			= vmcs_read32(VM_INSTRUCTION_ERROR);
-		return 0;
-	}
-
-	if ((vectoring_info & VECTORING_INFO_VALID_MASK) &&
-				exit_reason != EXIT_REASON_EXCEPTION_NMI)
-		printk(KERN_WARNING "%s: unexpected, valid vectoring info and "
-		       "exit reason is 0x%x\n", __FUNCTION__, exit_reason);
-	if (exit_reason < kvm_vmx_max_exit_handlers
-	    && kvm_vmx_exit_handlers[exit_reason])
-		return kvm_vmx_exit_handlers[exit_reason](vcpu, kvm_run);
-	else {
-		kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
-		kvm_run->hw.hardware_exit_reason = exit_reason;
-	}
-	return 0;
-}
-
-static void vmx_flush_tlb(struct kvm_vcpu *vcpu)
-{
-}
-
-static void update_tpr_threshold(struct kvm_vcpu *vcpu)
-{
-	int max_irr, tpr;
-
-	if (!vm_need_tpr_shadow(vcpu->kvm))
-		return;
-
-	if (!kvm_lapic_enabled(vcpu) ||
-	    ((max_irr = kvm_lapic_find_highest_irr(vcpu)) == -1)) {
-		vmcs_write32(TPR_THRESHOLD, 0);
-		return;
-	}
-
-	tpr = (kvm_lapic_get_cr8(vcpu) & 0x0f) << 4;
-	vmcs_write32(TPR_THRESHOLD, (max_irr > tpr) ? tpr >> 4 : max_irr >> 4);
-}
-
-static void enable_irq_window(struct kvm_vcpu *vcpu)
-{
-	u32 cpu_based_vm_exec_control;
-
-	cpu_based_vm_exec_control = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL);
-	cpu_based_vm_exec_control |= CPU_BASED_VIRTUAL_INTR_PENDING;
-	vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, cpu_based_vm_exec_control);
-}
-
-static void vmx_intr_assist(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	u32 idtv_info_field, intr_info_field;
-	int has_ext_irq, interrupt_window_open;
-	int vector;
-
-	update_tpr_threshold(vcpu);
-
-	has_ext_irq = kvm_cpu_has_interrupt(vcpu);
-	intr_info_field = vmcs_read32(VM_ENTRY_INTR_INFO_FIELD);
-	idtv_info_field = vmx->idt_vectoring_info;
-	if (intr_info_field & INTR_INFO_VALID_MASK) {
-		if (idtv_info_field & INTR_INFO_VALID_MASK) {
-			/* TODO: fault when IDT_Vectoring */
-			if (printk_ratelimit())
-				printk(KERN_ERR "Fault when IDT_Vectoring\n");
-		}
-		if (has_ext_irq)
-			enable_irq_window(vcpu);
-		return;
-	}
-	if (unlikely(idtv_info_field & INTR_INFO_VALID_MASK)) {
-		if ((idtv_info_field & VECTORING_INFO_TYPE_MASK)
-		    == INTR_TYPE_EXT_INTR
-		    && vcpu->arch.rmode.active) {
-			u8 vect = idtv_info_field & VECTORING_INFO_VECTOR_MASK;
-
-			vmx_inject_irq(vcpu, vect);
-			if (unlikely(has_ext_irq))
-				enable_irq_window(vcpu);
-			return;
-		}
-
-		vmcs_write32(VM_ENTRY_INTR_INFO_FIELD, idtv_info_field);
-		vmcs_write32(VM_ENTRY_INSTRUCTION_LEN,
-				vmcs_read32(VM_EXIT_INSTRUCTION_LEN));
-
-		if (unlikely(idtv_info_field & INTR_INFO_DELIEVER_CODE_MASK))
-			vmcs_write32(VM_ENTRY_EXCEPTION_ERROR_CODE,
-				vmcs_read32(IDT_VECTORING_ERROR_CODE));
-		if (unlikely(has_ext_irq))
-			enable_irq_window(vcpu);
-		return;
-	}
-	if (!has_ext_irq)
-		return;
-	interrupt_window_open =
-		((vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_IF) &&
-		 (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & 3) == 0);
-	if (interrupt_window_open) {
-		vector = kvm_cpu_get_interrupt(vcpu);
-		vmx_inject_irq(vcpu, vector);
-		kvm_timer_intr_post(vcpu, vector);
-	} else
-		enable_irq_window(vcpu);
-}
-
-/*
- * Failure to inject an interrupt should give us the information
- * in IDT_VECTORING_INFO_FIELD.  However, if the failure occurs
- * when fetching the interrupt redirection bitmap in the real-mode
- * tss, this doesn't happen.  So we do it ourselves.
- */
-static void fixup_rmode_irq(struct vcpu_vmx *vmx)
-{
-	vmx->rmode.irq.pending = 0;
-	if (vmcs_readl(GUEST_RIP) + 1 != vmx->rmode.irq.rip)
-		return;
-	vmcs_writel(GUEST_RIP, vmx->rmode.irq.rip);
-	if (vmx->idt_vectoring_info & VECTORING_INFO_VALID_MASK) {
-		vmx->idt_vectoring_info &= ~VECTORING_INFO_TYPE_MASK;
-		vmx->idt_vectoring_info |= INTR_TYPE_EXT_INTR;
-		return;
-	}
-	vmx->idt_vectoring_info =
-		VECTORING_INFO_VALID_MASK
-		| INTR_TYPE_EXT_INTR
-		| vmx->rmode.irq.vector;
-}
-
-static void vmx_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	u32 intr_info;
-
-	/*
-	 * Loading guest fpu may have cleared host cr0.ts
-	 */
-	vmcs_writel(HOST_CR0, read_cr0());
-
-	asm(
-		/* Store host registers */
-#ifdef CONFIG_X86_64
-		"push %%rdx; push %%rbp;"
-		"push %%rcx \n\t"
-#else
-		"push %%edx; push %%ebp;"
-		"push %%ecx \n\t"
-#endif
-		ASM_VMX_VMWRITE_RSP_RDX "\n\t"
-		/* Check if vmlaunch of vmresume is needed */
-		"cmpl $0, %c[launched](%0) \n\t"
-		/* Load guest registers.  Don't clobber flags. */
-#ifdef CONFIG_X86_64
-		"mov %c[cr2](%0), %%rax \n\t"
-		"mov %%rax, %%cr2 \n\t"
-		"mov %c[rax](%0), %%rax \n\t"
-		"mov %c[rbx](%0), %%rbx \n\t"
-		"mov %c[rdx](%0), %%rdx \n\t"
-		"mov %c[rsi](%0), %%rsi \n\t"
-		"mov %c[rdi](%0), %%rdi \n\t"
-		"mov %c[rbp](%0), %%rbp \n\t"
-		"mov %c[r8](%0),  %%r8  \n\t"
-		"mov %c[r9](%0),  %%r9  \n\t"
-		"mov %c[r10](%0), %%r10 \n\t"
-		"mov %c[r11](%0), %%r11 \n\t"
-		"mov %c[r12](%0), %%r12 \n\t"
-		"mov %c[r13](%0), %%r13 \n\t"
-		"mov %c[r14](%0), %%r14 \n\t"
-		"mov %c[r15](%0), %%r15 \n\t"
-		"mov %c[rcx](%0), %%rcx \n\t" /* kills %0 (rcx) */
-#else
-		"mov %c[cr2](%0), %%eax \n\t"
-		"mov %%eax,   %%cr2 \n\t"
-		"mov %c[rax](%0), %%eax \n\t"
-		"mov %c[rbx](%0), %%ebx \n\t"
-		"mov %c[rdx](%0), %%edx \n\t"
-		"mov %c[rsi](%0), %%esi \n\t"
-		"mov %c[rdi](%0), %%edi \n\t"
-		"mov %c[rbp](%0), %%ebp \n\t"
-		"mov %c[rcx](%0), %%ecx \n\t" /* kills %0 (ecx) */
-#endif
-		/* Enter guest mode */
-		"jne .Llaunched \n\t"
-		ASM_VMX_VMLAUNCH "\n\t"
-		"jmp .Lkvm_vmx_return \n\t"
-		".Llaunched: " ASM_VMX_VMRESUME "\n\t"
-		".Lkvm_vmx_return: "
-		/* Save guest registers, load host registers, keep flags */
-#ifdef CONFIG_X86_64
-		"xchg %0,     (%%rsp) \n\t"
-		"mov %%rax, %c[rax](%0) \n\t"
-		"mov %%rbx, %c[rbx](%0) \n\t"
-		"pushq (%%rsp); popq %c[rcx](%0) \n\t"
-		"mov %%rdx, %c[rdx](%0) \n\t"
-		"mov %%rsi, %c[rsi](%0) \n\t"
-		"mov %%rdi, %c[rdi](%0) \n\t"
-		"mov %%rbp, %c[rbp](%0) \n\t"
-		"mov %%r8,  %c[r8](%0) \n\t"
-		"mov %%r9,  %c[r9](%0) \n\t"
-		"mov %%r10, %c[r10](%0) \n\t"
-		"mov %%r11, %c[r11](%0) \n\t"
-		"mov %%r12, %c[r12](%0) \n\t"
-		"mov %%r13, %c[r13](%0) \n\t"
-		"mov %%r14, %c[r14](%0) \n\t"
-		"mov %%r15, %c[r15](%0) \n\t"
-		"mov %%cr2, %%rax   \n\t"
-		"mov %%rax, %c[cr2](%0) \n\t"
-
-		"pop  %%rbp; pop  %%rbp; pop  %%rdx \n\t"
-#else
-		"xchg %0, (%%esp) \n\t"
-		"mov %%eax, %c[rax](%0) \n\t"
-		"mov %%ebx, %c[rbx](%0) \n\t"
-		"pushl (%%esp); popl %c[rcx](%0) \n\t"
-		"mov %%edx, %c[rdx](%0) \n\t"
-		"mov %%esi, %c[rsi](%0) \n\t"
-		"mov %%edi, %c[rdi](%0) \n\t"
-		"mov %%ebp, %c[rbp](%0) \n\t"
-		"mov %%cr2, %%eax  \n\t"
-		"mov %%eax, %c[cr2](%0) \n\t"
-
-		"pop %%ebp; pop %%ebp; pop %%edx \n\t"
-#endif
-		"setbe %c[fail](%0) \n\t"
-	      : : "c"(vmx), "d"((unsigned long)HOST_RSP),
-		[launched]"i"(offsetof(struct vcpu_vmx, launched)),
-		[fail]"i"(offsetof(struct vcpu_vmx, fail)),
-		[rax]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RAX])),
-		[rbx]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RBX])),
-		[rcx]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RCX])),
-		[rdx]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RDX])),
-		[rsi]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RSI])),
-		[rdi]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RDI])),
-		[rbp]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_RBP])),
-#ifdef CONFIG_X86_64
-		[r8]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R8])),
-		[r9]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R9])),
-		[r10]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R10])),
-		[r11]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R11])),
-		[r12]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R12])),
-		[r13]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R13])),
-		[r14]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R14])),
-		[r15]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R15])),
-#endif
-		[cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2))
-	      : "cc", "memory"
-#ifdef CONFIG_X86_64
-		, "rbx", "rdi", "rsi"
-		, "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"
-#else
-		, "ebx", "edi", "rsi"
-#endif
-	      );
-
-	vmx->idt_vectoring_info = vmcs_read32(IDT_VECTORING_INFO_FIELD);
-	if (vmx->rmode.irq.pending)
-		fixup_rmode_irq(vmx);
-
-	vcpu->arch.interrupt_window_open =
-		(vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & 3) == 0;
-
-	asm("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS));
-	vmx->launched = 1;
-
-	intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
-
-	/* We need to handle NMIs before interrupts are enabled */
-	if ((intr_info & INTR_INFO_INTR_TYPE_MASK) == 0x200) /* nmi */
-		asm("int $2");
-}
-
-static void vmx_free_vmcs(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-
-	if (vmx->vmcs) {
-		on_each_cpu(__vcpu_clear, vmx, 0, 1);
-		free_vmcs(vmx->vmcs);
-		vmx->vmcs = NULL;
-	}
-}
-
-static void vmx_free_vcpu(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-
-	vmx_free_vmcs(vcpu);
-	kfree(vmx->host_msrs);
-	kfree(vmx->guest_msrs);
-	kvm_vcpu_uninit(vcpu);
-	kmem_cache_free(kvm_vcpu_cache, vmx);
-}
-
-static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
-{
-	int err;
-	struct vcpu_vmx *vmx = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
-	int cpu;
-
-	if (!vmx)
-		return ERR_PTR(-ENOMEM);
-
-	err = kvm_vcpu_init(&vmx->vcpu, kvm, id);
-	if (err)
-		goto free_vcpu;
-
-	vmx->guest_msrs = kmalloc(PAGE_SIZE, GFP_KERNEL);
-	if (!vmx->guest_msrs) {
-		err = -ENOMEM;
-		goto uninit_vcpu;
-	}
-
-	vmx->host_msrs = kmalloc(PAGE_SIZE, GFP_KERNEL);
-	if (!vmx->host_msrs)
-		goto free_guest_msrs;
-
-	vmx->vmcs = alloc_vmcs();
-	if (!vmx->vmcs)
-		goto free_msrs;
-
-	vmcs_clear(vmx->vmcs);
-
-	cpu = get_cpu();
-	vmx_vcpu_load(&vmx->vcpu, cpu);
-	err = vmx_vcpu_setup(vmx);
-	vmx_vcpu_put(&vmx->vcpu);
-	put_cpu();
-	if (err)
-		goto free_vmcs;
-
-	return &vmx->vcpu;
-
-free_vmcs:
-	free_vmcs(vmx->vmcs);
-free_msrs:
-	kfree(vmx->host_msrs);
-free_guest_msrs:
-	kfree(vmx->guest_msrs);
-uninit_vcpu:
-	kvm_vcpu_uninit(&vmx->vcpu);
-free_vcpu:
-	kmem_cache_free(kvm_vcpu_cache, vmx);
-	return ERR_PTR(err);
-}
-
-static void __init vmx_check_processor_compat(void *rtn)
-{
-	struct vmcs_config vmcs_conf;
-
-	*(int *)rtn = 0;
-	if (setup_vmcs_config(&vmcs_conf) < 0)
-		*(int *)rtn = -EIO;
-	if (memcmp(&vmcs_config, &vmcs_conf, sizeof(struct vmcs_config)) != 0) {
-		printk(KERN_ERR "kvm: CPU %d feature inconsistency!\n",
-				smp_processor_id());
-		*(int *)rtn = -EIO;
-	}
-}
-
-static struct kvm_x86_ops vmx_x86_ops = {
-	.cpu_has_kvm_support = cpu_has_kvm_support,
-	.disabled_by_bios = vmx_disabled_by_bios,
-	.hardware_setup = hardware_setup,
-	.hardware_unsetup = hardware_unsetup,
-	.check_processor_compatibility = vmx_check_processor_compat,
-	.hardware_enable = hardware_enable,
-	.hardware_disable = hardware_disable,
-
-	.vcpu_create = vmx_create_vcpu,
-	.vcpu_free = vmx_free_vcpu,
-	.vcpu_reset = vmx_vcpu_reset,
-
-	.prepare_guest_switch = vmx_save_host_state,
-	.vcpu_load = vmx_vcpu_load,
-	.vcpu_put = vmx_vcpu_put,
-	.vcpu_decache = vmx_vcpu_decache,
-
-	.set_guest_debug = set_guest_debug,
-	.guest_debug_pre = kvm_guest_debug_pre,
-	.get_msr = vmx_get_msr,
-	.set_msr = vmx_set_msr,
-	.get_segment_base = vmx_get_segment_base,
-	.get_segment = vmx_get_segment,
-	.set_segment = vmx_set_segment,
-	.get_cs_db_l_bits = vmx_get_cs_db_l_bits,
-	.decache_cr4_guest_bits = vmx_decache_cr4_guest_bits,
-	.set_cr0 = vmx_set_cr0,
-	.set_cr3 = vmx_set_cr3,
-	.set_cr4 = vmx_set_cr4,
-#ifdef CONFIG_X86_64
-	.set_efer = vmx_set_efer,
-#endif
-	.get_idt = vmx_get_idt,
-	.set_idt = vmx_set_idt,
-	.get_gdt = vmx_get_gdt,
-	.set_gdt = vmx_set_gdt,
-	.cache_regs = vcpu_load_rsp_rip,
-	.decache_regs = vcpu_put_rsp_rip,
-	.get_rflags = vmx_get_rflags,
-	.set_rflags = vmx_set_rflags,
-
-	.tlb_flush = vmx_flush_tlb,
-
-	.run = vmx_vcpu_run,
-	.handle_exit = kvm_handle_exit,
-	.skip_emulated_instruction = skip_emulated_instruction,
-	.patch_hypercall = vmx_patch_hypercall,
-	.get_irq = vmx_get_irq,
-	.set_irq = vmx_inject_irq,
-	.queue_exception = vmx_queue_exception,
-	.exception_injected = vmx_exception_injected,
-	.inject_pending_irq = vmx_intr_assist,
-	.inject_pending_vectors = do_interrupt_requests,
-
-	.set_tss_addr = vmx_set_tss_addr,
-};
-
-static int __init vmx_init(void)
-{
-	void *iova;
-	int r;
-
-	vmx_io_bitmap_a = alloc_page(GFP_KERNEL | __GFP_HIGHMEM);
-	if (!vmx_io_bitmap_a)
-		return -ENOMEM;
-
-	vmx_io_bitmap_b = alloc_page(GFP_KERNEL | __GFP_HIGHMEM);
-	if (!vmx_io_bitmap_b) {
-		r = -ENOMEM;
-		goto out;
-	}
-
-	/*
-	 * Allow direct access to the PC debug port (it is often used for I/O
-	 * delays, but the vmexits simply slow things down).
-	 */
-	iova = kmap(vmx_io_bitmap_a);
-	memset(iova, 0xff, PAGE_SIZE);
-	clear_bit(0x80, iova);
-	kunmap(vmx_io_bitmap_a);
-
-	iova = kmap(vmx_io_bitmap_b);
-	memset(iova, 0xff, PAGE_SIZE);
-	kunmap(vmx_io_bitmap_b);
-
-	r = kvm_init(&vmx_x86_ops, sizeof(struct vcpu_vmx), THIS_MODULE);
-	if (r)
-		goto out1;
-
-	if (bypass_guest_pf)
-		kvm_mmu_set_nonpresent_ptes(~0xffeull, 0ull);
-
-	return 0;
-
-out1:
-	__free_page(vmx_io_bitmap_b);
-out:
-	__free_page(vmx_io_bitmap_a);
-	return r;
-}
-
-static void __exit vmx_exit(void)
-{
-	__free_page(vmx_io_bitmap_b);
-	__free_page(vmx_io_bitmap_a);
-
-	kvm_exit();
-}
-
-module_init(vmx_init)
-module_exit(vmx_exit)
diff --git a/drivers/kvm/vmx.h b/drivers/kvm/vmx.h
deleted file mode 100644
index d52ae8d7303d..000000000000
--- a/drivers/kvm/vmx.h
+++ /dev/null
@@ -1,324 +0,0 @@
-#ifndef VMX_H
-#define VMX_H
-
-/*
- * vmx.h: VMX Architecture related definitions
- * Copyright (c) 2004, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
- * Place - Suite 330, Boston, MA 02111-1307 USA.
- *
- * A few random additions are:
- * Copyright (C) 2006 Qumranet
- *    Avi Kivity <avi@qumranet.com>
- *    Yaniv Kamay <yaniv@qumranet.com>
- *
- */
-
-/*
- * Definitions of Primary Processor-Based VM-Execution Controls.
- */
-#define CPU_BASED_VIRTUAL_INTR_PENDING          0x00000004
-#define CPU_BASED_USE_TSC_OFFSETING             0x00000008
-#define CPU_BASED_HLT_EXITING                   0x00000080
-#define CPU_BASED_INVLPG_EXITING                0x00000200
-#define CPU_BASED_MWAIT_EXITING                 0x00000400
-#define CPU_BASED_RDPMC_EXITING                 0x00000800
-#define CPU_BASED_RDTSC_EXITING                 0x00001000
-#define CPU_BASED_CR8_LOAD_EXITING              0x00080000
-#define CPU_BASED_CR8_STORE_EXITING             0x00100000
-#define CPU_BASED_TPR_SHADOW                    0x00200000
-#define CPU_BASED_MOV_DR_EXITING                0x00800000
-#define CPU_BASED_UNCOND_IO_EXITING             0x01000000
-#define CPU_BASED_USE_IO_BITMAPS                0x02000000
-#define CPU_BASED_USE_MSR_BITMAPS               0x10000000
-#define CPU_BASED_MONITOR_EXITING               0x20000000
-#define CPU_BASED_PAUSE_EXITING                 0x40000000
-#define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS   0x80000000
-/*
- * Definitions of Secondary Processor-Based VM-Execution Controls.
- */
-#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001
-#define SECONDARY_EXEC_WBINVD_EXITING		0x00000040
-
-
-#define PIN_BASED_EXT_INTR_MASK                 0x00000001
-#define PIN_BASED_NMI_EXITING                   0x00000008
-#define PIN_BASED_VIRTUAL_NMIS                  0x00000020
-
-#define VM_EXIT_HOST_ADDR_SPACE_SIZE            0x00000200
-#define VM_EXIT_ACK_INTR_ON_EXIT                0x00008000
-
-#define VM_ENTRY_IA32E_MODE                     0x00000200
-#define VM_ENTRY_SMM                            0x00000400
-#define VM_ENTRY_DEACT_DUAL_MONITOR             0x00000800
-
-/* VMCS Encodings */
-enum vmcs_field {
-	GUEST_ES_SELECTOR               = 0x00000800,
-	GUEST_CS_SELECTOR               = 0x00000802,
-	GUEST_SS_SELECTOR               = 0x00000804,
-	GUEST_DS_SELECTOR               = 0x00000806,
-	GUEST_FS_SELECTOR               = 0x00000808,
-	GUEST_GS_SELECTOR               = 0x0000080a,
-	GUEST_LDTR_SELECTOR             = 0x0000080c,
-	GUEST_TR_SELECTOR               = 0x0000080e,
-	HOST_ES_SELECTOR                = 0x00000c00,
-	HOST_CS_SELECTOR                = 0x00000c02,
-	HOST_SS_SELECTOR                = 0x00000c04,
-	HOST_DS_SELECTOR                = 0x00000c06,
-	HOST_FS_SELECTOR                = 0x00000c08,
-	HOST_GS_SELECTOR                = 0x00000c0a,
-	HOST_TR_SELECTOR                = 0x00000c0c,
-	IO_BITMAP_A                     = 0x00002000,
-	IO_BITMAP_A_HIGH                = 0x00002001,
-	IO_BITMAP_B                     = 0x00002002,
-	IO_BITMAP_B_HIGH                = 0x00002003,
-	MSR_BITMAP                      = 0x00002004,
-	MSR_BITMAP_HIGH                 = 0x00002005,
-	VM_EXIT_MSR_STORE_ADDR          = 0x00002006,
-	VM_EXIT_MSR_STORE_ADDR_HIGH     = 0x00002007,
-	VM_EXIT_MSR_LOAD_ADDR           = 0x00002008,
-	VM_EXIT_MSR_LOAD_ADDR_HIGH      = 0x00002009,
-	VM_ENTRY_MSR_LOAD_ADDR          = 0x0000200a,
-	VM_ENTRY_MSR_LOAD_ADDR_HIGH     = 0x0000200b,
-	TSC_OFFSET                      = 0x00002010,
-	TSC_OFFSET_HIGH                 = 0x00002011,
-	VIRTUAL_APIC_PAGE_ADDR          = 0x00002012,
-	VIRTUAL_APIC_PAGE_ADDR_HIGH     = 0x00002013,
-	APIC_ACCESS_ADDR		= 0x00002014,
-	APIC_ACCESS_ADDR_HIGH		= 0x00002015,
-	VMCS_LINK_POINTER               = 0x00002800,
-	VMCS_LINK_POINTER_HIGH          = 0x00002801,
-	GUEST_IA32_DEBUGCTL             = 0x00002802,
-	GUEST_IA32_DEBUGCTL_HIGH        = 0x00002803,
-	PIN_BASED_VM_EXEC_CONTROL       = 0x00004000,
-	CPU_BASED_VM_EXEC_CONTROL       = 0x00004002,
-	EXCEPTION_BITMAP                = 0x00004004,
-	PAGE_FAULT_ERROR_CODE_MASK      = 0x00004006,
-	PAGE_FAULT_ERROR_CODE_MATCH     = 0x00004008,
-	CR3_TARGET_COUNT                = 0x0000400a,
-	VM_EXIT_CONTROLS                = 0x0000400c,
-	VM_EXIT_MSR_STORE_COUNT         = 0x0000400e,
-	VM_EXIT_MSR_LOAD_COUNT          = 0x00004010,
-	VM_ENTRY_CONTROLS               = 0x00004012,
-	VM_ENTRY_MSR_LOAD_COUNT         = 0x00004014,
-	VM_ENTRY_INTR_INFO_FIELD        = 0x00004016,
-	VM_ENTRY_EXCEPTION_ERROR_CODE   = 0x00004018,
-	VM_ENTRY_INSTRUCTION_LEN        = 0x0000401a,
-	TPR_THRESHOLD                   = 0x0000401c,
-	SECONDARY_VM_EXEC_CONTROL       = 0x0000401e,
-	VM_INSTRUCTION_ERROR            = 0x00004400,
-	VM_EXIT_REASON                  = 0x00004402,
-	VM_EXIT_INTR_INFO               = 0x00004404,
-	VM_EXIT_INTR_ERROR_CODE         = 0x00004406,
-	IDT_VECTORING_INFO_FIELD        = 0x00004408,
-	IDT_VECTORING_ERROR_CODE        = 0x0000440a,
-	VM_EXIT_INSTRUCTION_LEN         = 0x0000440c,
-	VMX_INSTRUCTION_INFO            = 0x0000440e,
-	GUEST_ES_LIMIT                  = 0x00004800,
-	GUEST_CS_LIMIT                  = 0x00004802,
-	GUEST_SS_LIMIT                  = 0x00004804,
-	GUEST_DS_LIMIT                  = 0x00004806,
-	GUEST_FS_LIMIT                  = 0x00004808,
-	GUEST_GS_LIMIT                  = 0x0000480a,
-	GUEST_LDTR_LIMIT                = 0x0000480c,
-	GUEST_TR_LIMIT                  = 0x0000480e,
-	GUEST_GDTR_LIMIT                = 0x00004810,
-	GUEST_IDTR_LIMIT                = 0x00004812,
-	GUEST_ES_AR_BYTES               = 0x00004814,
-	GUEST_CS_AR_BYTES               = 0x00004816,
-	GUEST_SS_AR_BYTES               = 0x00004818,
-	GUEST_DS_AR_BYTES               = 0x0000481a,
-	GUEST_FS_AR_BYTES               = 0x0000481c,
-	GUEST_GS_AR_BYTES               = 0x0000481e,
-	GUEST_LDTR_AR_BYTES             = 0x00004820,
-	GUEST_TR_AR_BYTES               = 0x00004822,
-	GUEST_INTERRUPTIBILITY_INFO     = 0x00004824,
-	GUEST_ACTIVITY_STATE            = 0X00004826,
-	GUEST_SYSENTER_CS               = 0x0000482A,
-	HOST_IA32_SYSENTER_CS           = 0x00004c00,
-	CR0_GUEST_HOST_MASK             = 0x00006000,
-	CR4_GUEST_HOST_MASK             = 0x00006002,
-	CR0_READ_SHADOW                 = 0x00006004,
-	CR4_READ_SHADOW                 = 0x00006006,
-	CR3_TARGET_VALUE0               = 0x00006008,
-	CR3_TARGET_VALUE1               = 0x0000600a,
-	CR3_TARGET_VALUE2               = 0x0000600c,
-	CR3_TARGET_VALUE3               = 0x0000600e,
-	EXIT_QUALIFICATION              = 0x00006400,
-	GUEST_LINEAR_ADDRESS            = 0x0000640a,
-	GUEST_CR0                       = 0x00006800,
-	GUEST_CR3                       = 0x00006802,
-	GUEST_CR4                       = 0x00006804,
-	GUEST_ES_BASE                   = 0x00006806,
-	GUEST_CS_BASE                   = 0x00006808,
-	GUEST_SS_BASE                   = 0x0000680a,
-	GUEST_DS_BASE                   = 0x0000680c,
-	GUEST_FS_BASE                   = 0x0000680e,
-	GUEST_GS_BASE                   = 0x00006810,
-	GUEST_LDTR_BASE                 = 0x00006812,
-	GUEST_TR_BASE                   = 0x00006814,
-	GUEST_GDTR_BASE                 = 0x00006816,
-	GUEST_IDTR_BASE                 = 0x00006818,
-	GUEST_DR7                       = 0x0000681a,
-	GUEST_RSP                       = 0x0000681c,
-	GUEST_RIP                       = 0x0000681e,
-	GUEST_RFLAGS                    = 0x00006820,
-	GUEST_PENDING_DBG_EXCEPTIONS    = 0x00006822,
-	GUEST_SYSENTER_ESP              = 0x00006824,
-	GUEST_SYSENTER_EIP              = 0x00006826,
-	HOST_CR0                        = 0x00006c00,
-	HOST_CR3                        = 0x00006c02,
-	HOST_CR4                        = 0x00006c04,
-	HOST_FS_BASE                    = 0x00006c06,
-	HOST_GS_BASE                    = 0x00006c08,
-	HOST_TR_BASE                    = 0x00006c0a,
-	HOST_GDTR_BASE                  = 0x00006c0c,
-	HOST_IDTR_BASE                  = 0x00006c0e,
-	HOST_IA32_SYSENTER_ESP          = 0x00006c10,
-	HOST_IA32_SYSENTER_EIP          = 0x00006c12,
-	HOST_RSP                        = 0x00006c14,
-	HOST_RIP                        = 0x00006c16,
-};
-
-#define VMX_EXIT_REASONS_FAILED_VMENTRY         0x80000000
-
-#define EXIT_REASON_EXCEPTION_NMI       0
-#define EXIT_REASON_EXTERNAL_INTERRUPT  1
-#define EXIT_REASON_TRIPLE_FAULT        2
-
-#define EXIT_REASON_PENDING_INTERRUPT   7
-
-#define EXIT_REASON_TASK_SWITCH         9
-#define EXIT_REASON_CPUID               10
-#define EXIT_REASON_HLT                 12
-#define EXIT_REASON_INVLPG              14
-#define EXIT_REASON_RDPMC               15
-#define EXIT_REASON_RDTSC               16
-#define EXIT_REASON_VMCALL              18
-#define EXIT_REASON_VMCLEAR             19
-#define EXIT_REASON_VMLAUNCH            20
-#define EXIT_REASON_VMPTRLD             21
-#define EXIT_REASON_VMPTRST             22
-#define EXIT_REASON_VMREAD              23
-#define EXIT_REASON_VMRESUME            24
-#define EXIT_REASON_VMWRITE             25
-#define EXIT_REASON_VMOFF               26
-#define EXIT_REASON_VMON                27
-#define EXIT_REASON_CR_ACCESS           28
-#define EXIT_REASON_DR_ACCESS           29
-#define EXIT_REASON_IO_INSTRUCTION      30
-#define EXIT_REASON_MSR_READ            31
-#define EXIT_REASON_MSR_WRITE           32
-#define EXIT_REASON_MWAIT_INSTRUCTION   36
-#define EXIT_REASON_TPR_BELOW_THRESHOLD 43
-#define EXIT_REASON_APIC_ACCESS         44
-#define EXIT_REASON_WBINVD		54
-
-/*
- * Interruption-information format
- */
-#define INTR_INFO_VECTOR_MASK           0xff            /* 7:0 */
-#define INTR_INFO_INTR_TYPE_MASK        0x700           /* 10:8 */
-#define INTR_INFO_DELIEVER_CODE_MASK    0x800           /* 11 */
-#define INTR_INFO_VALID_MASK            0x80000000      /* 31 */
-
-#define VECTORING_INFO_VECTOR_MASK           	INTR_INFO_VECTOR_MASK
-#define VECTORING_INFO_TYPE_MASK        	INTR_INFO_INTR_TYPE_MASK
-#define VECTORING_INFO_DELIEVER_CODE_MASK    	INTR_INFO_DELIEVER_CODE_MASK
-#define VECTORING_INFO_VALID_MASK       	INTR_INFO_VALID_MASK
-
-#define INTR_TYPE_EXT_INTR              (0 << 8) /* external interrupt */
-#define INTR_TYPE_EXCEPTION             (3 << 8) /* processor exception */
-#define INTR_TYPE_SOFT_INTR             (4 << 8) /* software interrupt */
-
-/*
- * Exit Qualifications for MOV for Control Register Access
- */
-#define CONTROL_REG_ACCESS_NUM          0x7     /* 2:0, number of control reg.*/
-#define CONTROL_REG_ACCESS_TYPE         0x30    /* 5:4, access type */
-#define CONTROL_REG_ACCESS_REG          0xf00   /* 10:8, general purpose reg. */
-#define LMSW_SOURCE_DATA_SHIFT 16
-#define LMSW_SOURCE_DATA  (0xFFFF << LMSW_SOURCE_DATA_SHIFT) /* 16:31 lmsw source */
-#define REG_EAX                         (0 << 8)
-#define REG_ECX                         (1 << 8)
-#define REG_EDX                         (2 << 8)
-#define REG_EBX                         (3 << 8)
-#define REG_ESP                         (4 << 8)
-#define REG_EBP                         (5 << 8)
-#define REG_ESI                         (6 << 8)
-#define REG_EDI                         (7 << 8)
-#define REG_R8                         (8 << 8)
-#define REG_R9                         (9 << 8)
-#define REG_R10                        (10 << 8)
-#define REG_R11                        (11 << 8)
-#define REG_R12                        (12 << 8)
-#define REG_R13                        (13 << 8)
-#define REG_R14                        (14 << 8)
-#define REG_R15                        (15 << 8)
-
-/*
- * Exit Qualifications for MOV for Debug Register Access
- */
-#define DEBUG_REG_ACCESS_NUM            0x7     /* 2:0, number of debug reg. */
-#define DEBUG_REG_ACCESS_TYPE           0x10    /* 4, direction of access */
-#define TYPE_MOV_TO_DR                  (0 << 4)
-#define TYPE_MOV_FROM_DR                (1 << 4)
-#define DEBUG_REG_ACCESS_REG            0xf00   /* 11:8, general purpose reg. */
-
-
-/* segment AR */
-#define SEGMENT_AR_L_MASK (1 << 13)
-
-#define AR_TYPE_ACCESSES_MASK 1
-#define AR_TYPE_READABLE_MASK (1 << 1)
-#define AR_TYPE_WRITEABLE_MASK (1 << 2)
-#define AR_TYPE_CODE_MASK (1 << 3)
-#define AR_TYPE_MASK 0x0f
-#define AR_TYPE_BUSY_64_TSS 11
-#define AR_TYPE_BUSY_32_TSS 11
-#define AR_TYPE_BUSY_16_TSS 3
-#define AR_TYPE_LDT 2
-
-#define AR_UNUSABLE_MASK (1 << 16)
-#define AR_S_MASK (1 << 4)
-#define AR_P_MASK (1 << 7)
-#define AR_L_MASK (1 << 13)
-#define AR_DB_MASK (1 << 14)
-#define AR_G_MASK (1 << 15)
-#define AR_DPL_SHIFT 5
-#define AR_DPL(ar) (((ar) >> AR_DPL_SHIFT) & 3)
-
-#define AR_RESERVD_MASK 0xfffe0f00
-
-#define MSR_IA32_VMX_BASIC                      0x480
-#define MSR_IA32_VMX_PINBASED_CTLS              0x481
-#define MSR_IA32_VMX_PROCBASED_CTLS             0x482
-#define MSR_IA32_VMX_EXIT_CTLS                  0x483
-#define MSR_IA32_VMX_ENTRY_CTLS                 0x484
-#define MSR_IA32_VMX_MISC                       0x485
-#define MSR_IA32_VMX_CR0_FIXED0                 0x486
-#define MSR_IA32_VMX_CR0_FIXED1                 0x487
-#define MSR_IA32_VMX_CR4_FIXED0                 0x488
-#define MSR_IA32_VMX_CR4_FIXED1                 0x489
-#define MSR_IA32_VMX_VMCS_ENUM                  0x48a
-#define MSR_IA32_VMX_PROCBASED_CTLS2            0x48b
-
-#define MSR_IA32_FEATURE_CONTROL                0x3a
-#define MSR_IA32_FEATURE_CONTROL_LOCKED         0x1
-#define MSR_IA32_FEATURE_CONTROL_VMXON_ENABLED  0x4
-
-#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT	9
-
-#endif
diff --git a/drivers/kvm/x86.c b/drivers/kvm/x86.c
deleted file mode 100644
index b37c0093d728..000000000000
--- a/drivers/kvm/x86.c
+++ /dev/null
@@ -1,3148 +0,0 @@
-/*
- * Kernel-based Virtual Machine driver for Linux
- *
- * derived from drivers/kvm/kvm_main.c
- *
- * Copyright (C) 2006 Qumranet, Inc.
- *
- * Authors:
- *   Avi Kivity   <avi@qumranet.com>
- *   Yaniv Kamay  <yaniv@qumranet.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- *
- */
-
-#include "kvm.h"
-#include "x86.h"
-#include "x86_emulate.h"
-#include "segment_descriptor.h"
-#include "irq.h"
-#include "mmu.h"
-
-#include <linux/kvm.h>
-#include <linux/fs.h>
-#include <linux/vmalloc.h>
-#include <linux/module.h>
-#include <linux/mman.h>
-#include <linux/highmem.h>
-
-#include <asm/uaccess.h>
-#include <asm/msr.h>
-
-#define MAX_IO_MSRS 256
-#define CR0_RESERVED_BITS						\
-	(~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
-			  | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
-			  | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
-#define CR4_RESERVED_BITS						\
-	(~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
-			  | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE	\
-			  | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR	\
-			  | X86_CR4_OSXMMEXCPT | X86_CR4_VMXE))
-
-#define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
-#define EFER_RESERVED_BITS 0xfffffffffffff2fe
-
-#define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM
-#define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
-
-struct kvm_x86_ops *kvm_x86_ops;
-
-struct kvm_stats_debugfs_item debugfs_entries[] = {
-	{ "pf_fixed", VCPU_STAT(pf_fixed) },
-	{ "pf_guest", VCPU_STAT(pf_guest) },
-	{ "tlb_flush", VCPU_STAT(tlb_flush) },
-	{ "invlpg", VCPU_STAT(invlpg) },
-	{ "exits", VCPU_STAT(exits) },
-	{ "io_exits", VCPU_STAT(io_exits) },
-	{ "mmio_exits", VCPU_STAT(mmio_exits) },
-	{ "signal_exits", VCPU_STAT(signal_exits) },
-	{ "irq_window", VCPU_STAT(irq_window_exits) },
-	{ "halt_exits", VCPU_STAT(halt_exits) },
-	{ "halt_wakeup", VCPU_STAT(halt_wakeup) },
-	{ "request_irq", VCPU_STAT(request_irq_exits) },
-	{ "irq_exits", VCPU_STAT(irq_exits) },
-	{ "host_state_reload", VCPU_STAT(host_state_reload) },
-	{ "efer_reload", VCPU_STAT(efer_reload) },
-	{ "fpu_reload", VCPU_STAT(fpu_reload) },
-	{ "insn_emulation", VCPU_STAT(insn_emulation) },
-	{ "insn_emulation_fail", VCPU_STAT(insn_emulation_fail) },
-	{ "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped) },
-	{ "mmu_pte_write", VM_STAT(mmu_pte_write) },
-	{ "mmu_pte_updated", VM_STAT(mmu_pte_updated) },
-	{ "mmu_pde_zapped", VM_STAT(mmu_pde_zapped) },
-	{ "mmu_flooded", VM_STAT(mmu_flooded) },
-	{ "mmu_recycled", VM_STAT(mmu_recycled) },
-	{ "remote_tlb_flush", VM_STAT(remote_tlb_flush) },
-	{ NULL }
-};
-
-
-unsigned long segment_base(u16 selector)
-{
-	struct descriptor_table gdt;
-	struct segment_descriptor *d;
-	unsigned long table_base;
-	unsigned long v;
-
-	if (selector == 0)
-		return 0;
-
-	asm("sgdt %0" : "=m"(gdt));
-	table_base = gdt.base;
-
-	if (selector & 4) {           /* from ldt */
-		u16 ldt_selector;
-
-		asm("sldt %0" : "=g"(ldt_selector));
-		table_base = segment_base(ldt_selector);
-	}
-	d = (struct segment_descriptor *)(table_base + (selector & ~7));
-	v = d->base_low | ((unsigned long)d->base_mid << 16) |
-		((unsigned long)d->base_high << 24);
-#ifdef CONFIG_X86_64
-	if (d->system == 0 && (d->type == 2 || d->type == 9 || d->type == 11))
-		v |= ((unsigned long) \
-		      ((struct segment_descriptor_64 *)d)->base_higher) << 32;
-#endif
-	return v;
-}
-EXPORT_SYMBOL_GPL(segment_base);
-
-u64 kvm_get_apic_base(struct kvm_vcpu *vcpu)
-{
-	if (irqchip_in_kernel(vcpu->kvm))
-		return vcpu->arch.apic_base;
-	else
-		return vcpu->arch.apic_base;
-}
-EXPORT_SYMBOL_GPL(kvm_get_apic_base);
-
-void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data)
-{
-	/* TODO: reserve bits check */
-	if (irqchip_in_kernel(vcpu->kvm))
-		kvm_lapic_set_base(vcpu, data);
-	else
-		vcpu->arch.apic_base = data;
-}
-EXPORT_SYMBOL_GPL(kvm_set_apic_base);
-
-void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr)
-{
-	WARN_ON(vcpu->arch.exception.pending);
-	vcpu->arch.exception.pending = true;
-	vcpu->arch.exception.has_error_code = false;
-	vcpu->arch.exception.nr = nr;
-}
-EXPORT_SYMBOL_GPL(kvm_queue_exception);
-
-void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long addr,
-			   u32 error_code)
-{
-	++vcpu->stat.pf_guest;
-	if (vcpu->arch.exception.pending && vcpu->arch.exception.nr == PF_VECTOR) {
-		printk(KERN_DEBUG "kvm: inject_page_fault:"
-		       " double fault 0x%lx\n", addr);
-		vcpu->arch.exception.nr = DF_VECTOR;
-		vcpu->arch.exception.error_code = 0;
-		return;
-	}
-	vcpu->arch.cr2 = addr;
-	kvm_queue_exception_e(vcpu, PF_VECTOR, error_code);
-}
-
-void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code)
-{
-	WARN_ON(vcpu->arch.exception.pending);
-	vcpu->arch.exception.pending = true;
-	vcpu->arch.exception.has_error_code = true;
-	vcpu->arch.exception.nr = nr;
-	vcpu->arch.exception.error_code = error_code;
-}
-EXPORT_SYMBOL_GPL(kvm_queue_exception_e);
-
-static void __queue_exception(struct kvm_vcpu *vcpu)
-{
-	kvm_x86_ops->queue_exception(vcpu, vcpu->arch.exception.nr,
-				     vcpu->arch.exception.has_error_code,
-				     vcpu->arch.exception.error_code);
-}
-
-/*
- * Load the pae pdptrs.  Return true is they are all valid.
- */
-int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3)
-{
-	gfn_t pdpt_gfn = cr3 >> PAGE_SHIFT;
-	unsigned offset = ((cr3 & (PAGE_SIZE-1)) >> 5) << 2;
-	int i;
-	int ret;
-	u64 pdpte[ARRAY_SIZE(vcpu->arch.pdptrs)];
-
-	mutex_lock(&vcpu->kvm->lock);
-	ret = kvm_read_guest_page(vcpu->kvm, pdpt_gfn, pdpte,
-				  offset * sizeof(u64), sizeof(pdpte));
-	if (ret < 0) {
-		ret = 0;
-		goto out;
-	}
-	for (i = 0; i < ARRAY_SIZE(pdpte); ++i) {
-		if ((pdpte[i] & 1) && (pdpte[i] & 0xfffffff0000001e6ull)) {
-			ret = 0;
-			goto out;
-		}
-	}
-	ret = 1;
-
-	memcpy(vcpu->arch.pdptrs, pdpte, sizeof(vcpu->arch.pdptrs));
-out:
-	mutex_unlock(&vcpu->kvm->lock);
-
-	return ret;
-}
-
-static bool pdptrs_changed(struct kvm_vcpu *vcpu)
-{
-	u64 pdpte[ARRAY_SIZE(vcpu->arch.pdptrs)];
-	bool changed = true;
-	int r;
-
-	if (is_long_mode(vcpu) || !is_pae(vcpu))
-		return false;
-
-	mutex_lock(&vcpu->kvm->lock);
-	r = kvm_read_guest(vcpu->kvm, vcpu->arch.cr3 & ~31u, pdpte, sizeof(pdpte));
-	if (r < 0)
-		goto out;
-	changed = memcmp(pdpte, vcpu->arch.pdptrs, sizeof(pdpte)) != 0;
-out:
-	mutex_unlock(&vcpu->kvm->lock);
-
-	return changed;
-}
-
-void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
-{
-	if (cr0 & CR0_RESERVED_BITS) {
-		printk(KERN_DEBUG "set_cr0: 0x%lx #GP, reserved bits 0x%lx\n",
-		       cr0, vcpu->arch.cr0);
-		kvm_inject_gp(vcpu, 0);
-		return;
-	}
-
-	if ((cr0 & X86_CR0_NW) && !(cr0 & X86_CR0_CD)) {
-		printk(KERN_DEBUG "set_cr0: #GP, CD == 0 && NW == 1\n");
-		kvm_inject_gp(vcpu, 0);
-		return;
-	}
-
-	if ((cr0 & X86_CR0_PG) && !(cr0 & X86_CR0_PE)) {
-		printk(KERN_DEBUG "set_cr0: #GP, set PG flag "
-		       "and a clear PE flag\n");
-		kvm_inject_gp(vcpu, 0);
-		return;
-	}
-
-	if (!is_paging(vcpu) && (cr0 & X86_CR0_PG)) {
-#ifdef CONFIG_X86_64
-		if ((vcpu->arch.shadow_efer & EFER_LME)) {
-			int cs_db, cs_l;
-
-			if (!is_pae(vcpu)) {
-				printk(KERN_DEBUG "set_cr0: #GP, start paging "
-				       "in long mode while PAE is disabled\n");
-				kvm_inject_gp(vcpu, 0);
-				return;
-			}
-			kvm_x86_ops->get_cs_db_l_bits(vcpu, &cs_db, &cs_l);
-			if (cs_l) {
-				printk(KERN_DEBUG "set_cr0: #GP, start paging "
-				       "in long mode while CS.L == 1\n");
-				kvm_inject_gp(vcpu, 0);
-				return;
-
-			}
-		} else
-#endif
-		if (is_pae(vcpu) && !load_pdptrs(vcpu, vcpu->arch.cr3)) {
-			printk(KERN_DEBUG "set_cr0: #GP, pdptrs "
-			       "reserved bits\n");
-			kvm_inject_gp(vcpu, 0);
-			return;
-		}
-
-	}
-
-	kvm_x86_ops->set_cr0(vcpu, cr0);
-	vcpu->arch.cr0 = cr0;
-
-	mutex_lock(&vcpu->kvm->lock);
-	kvm_mmu_reset_context(vcpu);
-	mutex_unlock(&vcpu->kvm->lock);
-	return;
-}
-EXPORT_SYMBOL_GPL(set_cr0);
-
-void lmsw(struct kvm_vcpu *vcpu, unsigned long msw)
-{
-	set_cr0(vcpu, (vcpu->arch.cr0 & ~0x0ful) | (msw & 0x0f));
-}
-EXPORT_SYMBOL_GPL(lmsw);
-
-void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
-{
-	if (cr4 & CR4_RESERVED_BITS) {
-		printk(KERN_DEBUG "set_cr4: #GP, reserved bits\n");
-		kvm_inject_gp(vcpu, 0);
-		return;
-	}
-
-	if (is_long_mode(vcpu)) {
-		if (!(cr4 & X86_CR4_PAE)) {
-			printk(KERN_DEBUG "set_cr4: #GP, clearing PAE while "
-			       "in long mode\n");
-			kvm_inject_gp(vcpu, 0);
-			return;
-		}
-	} else if (is_paging(vcpu) && !is_pae(vcpu) && (cr4 & X86_CR4_PAE)
-		   && !load_pdptrs(vcpu, vcpu->arch.cr3)) {
-		printk(KERN_DEBUG "set_cr4: #GP, pdptrs reserved bits\n");
-		kvm_inject_gp(vcpu, 0);
-		return;
-	}
-
-	if (cr4 & X86_CR4_VMXE) {
-		printk(KERN_DEBUG "set_cr4: #GP, setting VMXE\n");
-		kvm_inject_gp(vcpu, 0);
-		return;
-	}
-	kvm_x86_ops->set_cr4(vcpu, cr4);
-	vcpu->arch.cr4 = cr4;
-	mutex_lock(&vcpu->kvm->lock);
-	kvm_mmu_reset_context(vcpu);
-	mutex_unlock(&vcpu->kvm->lock);
-}
-EXPORT_SYMBOL_GPL(set_cr4);
-
-void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
-{
-	if (cr3 == vcpu->arch.cr3 && !pdptrs_changed(vcpu)) {
-		kvm_mmu_flush_tlb(vcpu);
-		return;
-	}
-
-	if (is_long_mode(vcpu)) {
-		if (cr3 & CR3_L_MODE_RESERVED_BITS) {
-			printk(KERN_DEBUG "set_cr3: #GP, reserved bits\n");
-			kvm_inject_gp(vcpu, 0);
-			return;
-		}
-	} else {
-		if (is_pae(vcpu)) {
-			if (cr3 & CR3_PAE_RESERVED_BITS) {
-				printk(KERN_DEBUG
-				       "set_cr3: #GP, reserved bits\n");
-				kvm_inject_gp(vcpu, 0);
-				return;
-			}
-			if (is_paging(vcpu) && !load_pdptrs(vcpu, cr3)) {
-				printk(KERN_DEBUG "set_cr3: #GP, pdptrs "
-				       "reserved bits\n");
-				kvm_inject_gp(vcpu, 0);
-				return;
-			}
-		}
-		/*
-		 * We don't check reserved bits in nonpae mode, because
-		 * this isn't enforced, and VMware depends on this.
-		 */
-	}
-
-	mutex_lock(&vcpu->kvm->lock);
-	/*
-	 * Does the new cr3 value map to physical memory? (Note, we
-	 * catch an invalid cr3 even in real-mode, because it would
-	 * cause trouble later on when we turn on paging anyway.)
-	 *
-	 * A real CPU would silently accept an invalid cr3 and would
-	 * attempt to use it - with largely undefined (and often hard
-	 * to debug) behavior on the guest side.
-	 */
-	if (unlikely(!gfn_to_memslot(vcpu->kvm, cr3 >> PAGE_SHIFT)))
-		kvm_inject_gp(vcpu, 0);
-	else {
-		vcpu->arch.cr3 = cr3;
-		vcpu->arch.mmu.new_cr3(vcpu);
-	}
-	mutex_unlock(&vcpu->kvm->lock);
-}
-EXPORT_SYMBOL_GPL(set_cr3);
-
-void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8)
-{
-	if (cr8 & CR8_RESERVED_BITS) {
-		printk(KERN_DEBUG "set_cr8: #GP, reserved bits 0x%lx\n", cr8);
-		kvm_inject_gp(vcpu, 0);
-		return;
-	}
-	if (irqchip_in_kernel(vcpu->kvm))
-		kvm_lapic_set_tpr(vcpu, cr8);
-	else
-		vcpu->arch.cr8 = cr8;
-}
-EXPORT_SYMBOL_GPL(set_cr8);
-
-unsigned long get_cr8(struct kvm_vcpu *vcpu)
-{
-	if (irqchip_in_kernel(vcpu->kvm))
-		return kvm_lapic_get_cr8(vcpu);
-	else
-		return vcpu->arch.cr8;
-}
-EXPORT_SYMBOL_GPL(get_cr8);
-
-/*
- * List of msr numbers which we expose to userspace through KVM_GET_MSRS
- * and KVM_SET_MSRS, and KVM_GET_MSR_INDEX_LIST.
- *
- * This list is modified at module load time to reflect the
- * capabilities of the host cpu.
- */
-static u32 msrs_to_save[] = {
-	MSR_IA32_SYSENTER_CS, MSR_IA32_SYSENTER_ESP, MSR_IA32_SYSENTER_EIP,
-	MSR_K6_STAR,
-#ifdef CONFIG_X86_64
-	MSR_CSTAR, MSR_KERNEL_GS_BASE, MSR_SYSCALL_MASK, MSR_LSTAR,
-#endif
-	MSR_IA32_TIME_STAMP_COUNTER,
-};
-
-static unsigned num_msrs_to_save;
-
-static u32 emulated_msrs[] = {
-	MSR_IA32_MISC_ENABLE,
-};
-
-#ifdef CONFIG_X86_64
-
-static void set_efer(struct kvm_vcpu *vcpu, u64 efer)
-{
-	if (efer & EFER_RESERVED_BITS) {
-		printk(KERN_DEBUG "set_efer: 0x%llx #GP, reserved bits\n",
-		       efer);
-		kvm_inject_gp(vcpu, 0);
-		return;
-	}
-
-	if (is_paging(vcpu)
-	    && (vcpu->arch.shadow_efer & EFER_LME) != (efer & EFER_LME)) {
-		printk(KERN_DEBUG "set_efer: #GP, change LME while paging\n");
-		kvm_inject_gp(vcpu, 0);
-		return;
-	}
-
-	kvm_x86_ops->set_efer(vcpu, efer);
-
-	efer &= ~EFER_LMA;
-	efer |= vcpu->arch.shadow_efer & EFER_LMA;
-
-	vcpu->arch.shadow_efer = efer;
-}
-
-#endif
-
-/*
- * Writes msr value into into the appropriate "register".
- * Returns 0 on success, non-0 otherwise.
- * Assumes vcpu_load() was already called.
- */
-int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
-{
-	return kvm_x86_ops->set_msr(vcpu, msr_index, data);
-}
-
-/*
- * Adapt set_msr() to msr_io()'s calling convention
- */
-static int do_set_msr(struct kvm_vcpu *vcpu, unsigned index, u64 *data)
-{
-	return kvm_set_msr(vcpu, index, *data);
-}
-
-
-int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
-{
-	switch (msr) {
-#ifdef CONFIG_X86_64
-	case MSR_EFER:
-		set_efer(vcpu, data);
-		break;
-#endif
-	case MSR_IA32_MC0_STATUS:
-		pr_unimpl(vcpu, "%s: MSR_IA32_MC0_STATUS 0x%llx, nop\n",
-		       __FUNCTION__, data);
-		break;
-	case MSR_IA32_MCG_STATUS:
-		pr_unimpl(vcpu, "%s: MSR_IA32_MCG_STATUS 0x%llx, nop\n",
-			__FUNCTION__, data);
-		break;
-	case MSR_IA32_UCODE_REV:
-	case MSR_IA32_UCODE_WRITE:
-	case 0x200 ... 0x2ff: /* MTRRs */
-		break;
-	case MSR_IA32_APICBASE:
-		kvm_set_apic_base(vcpu, data);
-		break;
-	case MSR_IA32_MISC_ENABLE:
-		vcpu->arch.ia32_misc_enable_msr = data;
-		break;
-	default:
-		pr_unimpl(vcpu, "unhandled wrmsr: 0x%x\n", msr);
-		return 1;
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(kvm_set_msr_common);
-
-
-/*
- * Reads an msr value (of 'msr_index') into 'pdata'.
- * Returns 0 on success, non-0 otherwise.
- * Assumes vcpu_load() was already called.
- */
-int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
-{
-	return kvm_x86_ops->get_msr(vcpu, msr_index, pdata);
-}
-
-int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
-{
-	u64 data;
-
-	switch (msr) {
-	case 0xc0010010: /* SYSCFG */
-	case 0xc0010015: /* HWCR */
-	case MSR_IA32_PLATFORM_ID:
-	case MSR_IA32_P5_MC_ADDR:
-	case MSR_IA32_P5_MC_TYPE:
-	case MSR_IA32_MC0_CTL:
-	case MSR_IA32_MCG_STATUS:
-	case MSR_IA32_MCG_CAP:
-	case MSR_IA32_MC0_MISC:
-	case MSR_IA32_MC0_MISC+4:
-	case MSR_IA32_MC0_MISC+8:
-	case MSR_IA32_MC0_MISC+12:
-	case MSR_IA32_MC0_MISC+16:
-	case MSR_IA32_UCODE_REV:
-	case MSR_IA32_PERF_STATUS:
-	case MSR_IA32_EBL_CR_POWERON:
-		/* MTRR registers */
-	case 0xfe:
-	case 0x200 ... 0x2ff:
-		data = 0;
-		break;
-	case 0xcd: /* fsb frequency */
-		data = 3;
-		break;
-	case MSR_IA32_APICBASE:
-		data = kvm_get_apic_base(vcpu);
-		break;
-	case MSR_IA32_MISC_ENABLE:
-		data = vcpu->arch.ia32_misc_enable_msr;
-		break;
-#ifdef CONFIG_X86_64
-	case MSR_EFER:
-		data = vcpu->arch.shadow_efer;
-		break;
-#endif
-	default:
-		pr_unimpl(vcpu, "unhandled rdmsr: 0x%x\n", msr);
-		return 1;
-	}
-	*pdata = data;
-	return 0;
-}
-EXPORT_SYMBOL_GPL(kvm_get_msr_common);
-
-/*
- * Read or write a bunch of msrs. All parameters are kernel addresses.
- *
- * @return number of msrs set successfully.
- */
-static int __msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs *msrs,
-		    struct kvm_msr_entry *entries,
-		    int (*do_msr)(struct kvm_vcpu *vcpu,
-				  unsigned index, u64 *data))
-{
-	int i;
-
-	vcpu_load(vcpu);
-
-	for (i = 0; i < msrs->nmsrs; ++i)
-		if (do_msr(vcpu, entries[i].index, &entries[i].data))
-			break;
-
-	vcpu_put(vcpu);
-
-	return i;
-}
-
-/*
- * Read or write a bunch of msrs. Parameters are user addresses.
- *
- * @return number of msrs set successfully.
- */
-static int msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs __user *user_msrs,
-		  int (*do_msr)(struct kvm_vcpu *vcpu,
-				unsigned index, u64 *data),
-		  int writeback)
-{
-	struct kvm_msrs msrs;
-	struct kvm_msr_entry *entries;
-	int r, n;
-	unsigned size;
-
-	r = -EFAULT;
-	if (copy_from_user(&msrs, user_msrs, sizeof msrs))
-		goto out;
-
-	r = -E2BIG;
-	if (msrs.nmsrs >= MAX_IO_MSRS)
-		goto out;
-
-	r = -ENOMEM;
-	size = sizeof(struct kvm_msr_entry) * msrs.nmsrs;
-	entries = vmalloc(size);
-	if (!entries)
-		goto out;
-
-	r = -EFAULT;
-	if (copy_from_user(entries, user_msrs->entries, size))
-		goto out_free;
-
-	r = n = __msr_io(vcpu, &msrs, entries, do_msr);
-	if (r < 0)
-		goto out_free;
-
-	r = -EFAULT;
-	if (writeback && copy_to_user(user_msrs->entries, entries, size))
-		goto out_free;
-
-	r = n;
-
-out_free:
-	vfree(entries);
-out:
-	return r;
-}
-
-/*
- * Make sure that a cpu that is being hot-unplugged does not have any vcpus
- * cached on it.
- */
-void decache_vcpus_on_cpu(int cpu)
-{
-	struct kvm *vm;
-	struct kvm_vcpu *vcpu;
-	int i;
-
-	spin_lock(&kvm_lock);
-	list_for_each_entry(vm, &vm_list, vm_list)
-		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
-			vcpu = vm->vcpus[i];
-			if (!vcpu)
-				continue;
-			/*
-			 * If the vcpu is locked, then it is running on some
-			 * other cpu and therefore it is not cached on the
-			 * cpu in question.
-			 *
-			 * If it's not locked, check the last cpu it executed
-			 * on.
-			 */
-			if (mutex_trylock(&vcpu->mutex)) {
-				if (vcpu->cpu == cpu) {
-					kvm_x86_ops->vcpu_decache(vcpu);
-					vcpu->cpu = -1;
-				}
-				mutex_unlock(&vcpu->mutex);
-			}
-		}
-	spin_unlock(&kvm_lock);
-}
-
-int kvm_dev_ioctl_check_extension(long ext)
-{
-	int r;
-
-	switch (ext) {
-	case KVM_CAP_IRQCHIP:
-	case KVM_CAP_HLT:
-	case KVM_CAP_MMU_SHADOW_CACHE_CONTROL:
-	case KVM_CAP_USER_MEMORY:
-	case KVM_CAP_SET_TSS_ADDR:
-	case KVM_CAP_EXT_CPUID:
-		r = 1;
-		break;
-	default:
-		r = 0;
-		break;
-	}
-	return r;
-
-}
-
-long kvm_arch_dev_ioctl(struct file *filp,
-			unsigned int ioctl, unsigned long arg)
-{
-	void __user *argp = (void __user *)arg;
-	long r;
-
-	switch (ioctl) {
-	case KVM_GET_MSR_INDEX_LIST: {
-		struct kvm_msr_list __user *user_msr_list = argp;
-		struct kvm_msr_list msr_list;
-		unsigned n;
-
-		r = -EFAULT;
-		if (copy_from_user(&msr_list, user_msr_list, sizeof msr_list))
-			goto out;
-		n = msr_list.nmsrs;
-		msr_list.nmsrs = num_msrs_to_save + ARRAY_SIZE(emulated_msrs);
-		if (copy_to_user(user_msr_list, &msr_list, sizeof msr_list))
-			goto out;
-		r = -E2BIG;
-		if (n < num_msrs_to_save)
-			goto out;
-		r = -EFAULT;
-		if (copy_to_user(user_msr_list->indices, &msrs_to_save,
-				 num_msrs_to_save * sizeof(u32)))
-			goto out;
-		if (copy_to_user(user_msr_list->indices
-				 + num_msrs_to_save * sizeof(u32),
-				 &emulated_msrs,
-				 ARRAY_SIZE(emulated_msrs) * sizeof(u32)))
-			goto out;
-		r = 0;
-		break;
-	}
-	default:
-		r = -EINVAL;
-	}
-out:
-	return r;
-}
-
-void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
-{
-	kvm_x86_ops->vcpu_load(vcpu, cpu);
-}
-
-void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
-{
-	kvm_x86_ops->vcpu_put(vcpu);
-	kvm_put_guest_fpu(vcpu);
-}
-
-static int is_efer_nx(void)
-{
-	u64 efer;
-
-	rdmsrl(MSR_EFER, efer);
-	return efer & EFER_NX;
-}
-
-static void cpuid_fix_nx_cap(struct kvm_vcpu *vcpu)
-{
-	int i;
-	struct kvm_cpuid_entry2 *e, *entry;
-
-	entry = NULL;
-	for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
-		e = &vcpu->arch.cpuid_entries[i];
-		if (e->function == 0x80000001) {
-			entry = e;
-			break;
-		}
-	}
-	if (entry && (entry->edx & (1 << 20)) && !is_efer_nx()) {
-		entry->edx &= ~(1 << 20);
-		printk(KERN_INFO "kvm: guest NX capability removed\n");
-	}
-}
-
-/* when an old userspace process fills a new kernel module */
-static int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
-				    struct kvm_cpuid *cpuid,
-				    struct kvm_cpuid_entry __user *entries)
-{
-	int r, i;
-	struct kvm_cpuid_entry *cpuid_entries;
-
-	r = -E2BIG;
-	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
-		goto out;
-	r = -ENOMEM;
-	cpuid_entries = vmalloc(sizeof(struct kvm_cpuid_entry) * cpuid->nent);
-	if (!cpuid_entries)
-		goto out;
-	r = -EFAULT;
-	if (copy_from_user(cpuid_entries, entries,
-			   cpuid->nent * sizeof(struct kvm_cpuid_entry)))
-		goto out_free;
-	for (i = 0; i < cpuid->nent; i++) {
-		vcpu->arch.cpuid_entries[i].function = cpuid_entries[i].function;
-		vcpu->arch.cpuid_entries[i].eax = cpuid_entries[i].eax;
-		vcpu->arch.cpuid_entries[i].ebx = cpuid_entries[i].ebx;
-		vcpu->arch.cpuid_entries[i].ecx = cpuid_entries[i].ecx;
-		vcpu->arch.cpuid_entries[i].edx = cpuid_entries[i].edx;
-		vcpu->arch.cpuid_entries[i].index = 0;
-		vcpu->arch.cpuid_entries[i].flags = 0;
-		vcpu->arch.cpuid_entries[i].padding[0] = 0;
-		vcpu->arch.cpuid_entries[i].padding[1] = 0;
-		vcpu->arch.cpuid_entries[i].padding[2] = 0;
-	}
-	vcpu->arch.cpuid_nent = cpuid->nent;
-	cpuid_fix_nx_cap(vcpu);
-	r = 0;
-
-out_free:
-	vfree(cpuid_entries);
-out:
-	return r;
-}
-
-static int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
-				    struct kvm_cpuid2 *cpuid,
-				    struct kvm_cpuid_entry2 __user *entries)
-{
-	int r;
-
-	r = -E2BIG;
-	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
-		goto out;
-	r = -EFAULT;
-	if (copy_from_user(&vcpu->arch.cpuid_entries, entries,
-			   cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
-		goto out;
-	vcpu->arch.cpuid_nent = cpuid->nent;
-	return 0;
-
-out:
-	return r;
-}
-
-static int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
-				    struct kvm_cpuid2 *cpuid,
-				    struct kvm_cpuid_entry2 __user *entries)
-{
-	int r;
-
-	r = -E2BIG;
-	if (cpuid->nent < vcpu->arch.cpuid_nent)
-		goto out;
-	r = -EFAULT;
-	if (copy_to_user(entries, &vcpu->arch.cpuid_entries,
-			   vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
-		goto out;
-	return 0;
-
-out:
-	cpuid->nent = vcpu->arch.cpuid_nent;
-	return r;
-}
-
-static inline u32 bit(int bitno)
-{
-	return 1 << (bitno & 31);
-}
-
-static void do_cpuid_1_ent(struct kvm_cpuid_entry2 *entry, u32 function,
-			  u32 index)
-{
-	entry->function = function;
-	entry->index = index;
-	cpuid_count(entry->function, entry->index,
-		&entry->eax, &entry->ebx, &entry->ecx, &entry->edx);
-	entry->flags = 0;
-}
-
-static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
-			 u32 index, int *nent, int maxnent)
-{
-	const u32 kvm_supported_word0_x86_features = bit(X86_FEATURE_FPU) |
-		bit(X86_FEATURE_VME) | bit(X86_FEATURE_DE) |
-		bit(X86_FEATURE_PSE) | bit(X86_FEATURE_TSC) |
-		bit(X86_FEATURE_MSR) | bit(X86_FEATURE_PAE) |
-		bit(X86_FEATURE_CX8) | bit(X86_FEATURE_APIC) |
-		bit(X86_FEATURE_SEP) | bit(X86_FEATURE_PGE) |
-		bit(X86_FEATURE_CMOV) | bit(X86_FEATURE_PSE36) |
-		bit(X86_FEATURE_CLFLSH) | bit(X86_FEATURE_MMX) |
-		bit(X86_FEATURE_FXSR) | bit(X86_FEATURE_XMM) |
-		bit(X86_FEATURE_XMM2) | bit(X86_FEATURE_SELFSNOOP);
-	const u32 kvm_supported_word1_x86_features = bit(X86_FEATURE_FPU) |
-		bit(X86_FEATURE_VME) | bit(X86_FEATURE_DE) |
-		bit(X86_FEATURE_PSE) | bit(X86_FEATURE_TSC) |
-		bit(X86_FEATURE_MSR) | bit(X86_FEATURE_PAE) |
-		bit(X86_FEATURE_CX8) | bit(X86_FEATURE_APIC) |
-		bit(X86_FEATURE_PGE) |
-		bit(X86_FEATURE_CMOV) | bit(X86_FEATURE_PSE36) |
-		bit(X86_FEATURE_MMX) | bit(X86_FEATURE_FXSR) |
-		bit(X86_FEATURE_SYSCALL) |
-		(bit(X86_FEATURE_NX) && is_efer_nx()) |
-#ifdef CONFIG_X86_64
-		bit(X86_FEATURE_LM) |
-#endif
-		bit(X86_FEATURE_MMXEXT) |
-		bit(X86_FEATURE_3DNOWEXT) |
-		bit(X86_FEATURE_3DNOW);
-	const u32 kvm_supported_word3_x86_features =
-		bit(X86_FEATURE_XMM3) | bit(X86_FEATURE_CX16);
-	const u32 kvm_supported_word6_x86_features =
-		bit(X86_FEATURE_LAHF_LM) | bit(X86_FEATURE_CMP_LEGACY);
-
-	/* all func 2 cpuid_count() should be called on the same cpu */
-	get_cpu();
-	do_cpuid_1_ent(entry, function, index);
-	++*nent;
-
-	switch (function) {
-	case 0:
-		entry->eax = min(entry->eax, (u32)0xb);
-		break;
-	case 1:
-		entry->edx &= kvm_supported_word0_x86_features;
-		entry->ecx &= kvm_supported_word3_x86_features;
-		break;
-	/* function 2 entries are STATEFUL. That is, repeated cpuid commands
-	 * may return different values. This forces us to get_cpu() before
-	 * issuing the first command, and also to emulate this annoying behavior
-	 * in kvm_emulate_cpuid() using KVM_CPUID_FLAG_STATE_READ_NEXT */
-	case 2: {
-		int t, times = entry->eax & 0xff;
-
-		entry->flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
-		for (t = 1; t < times && *nent < maxnent; ++t) {
-			do_cpuid_1_ent(&entry[t], function, 0);
-			entry[t].flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
-			++*nent;
-		}
-		break;
-	}
-	/* function 4 and 0xb have additional index. */
-	case 4: {
-		int index, cache_type;
-
-		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
-		/* read more entries until cache_type is zero */
-		for (index = 1; *nent < maxnent; ++index) {
-			cache_type = entry[index - 1].eax & 0x1f;
-			if (!cache_type)
-				break;
-			do_cpuid_1_ent(&entry[index], function, index);
-			entry[index].flags |=
-			       KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
-			++*nent;
-		}
-		break;
-	}
-	case 0xb: {
-		int index, level_type;
-
-		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
-		/* read more entries until level_type is zero */
-		for (index = 1; *nent < maxnent; ++index) {
-			level_type = entry[index - 1].ecx & 0xff;
-			if (!level_type)
-				break;
-			do_cpuid_1_ent(&entry[index], function, index);
-			entry[index].flags |=
-			       KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
-			++*nent;
-		}
-		break;
-	}
-	case 0x80000000:
-		entry->eax = min(entry->eax, 0x8000001a);
-		break;
-	case 0x80000001:
-		entry->edx &= kvm_supported_word1_x86_features;
-		entry->ecx &= kvm_supported_word6_x86_features;
-		break;
-	}
-	put_cpu();
-}
-
-static int kvm_vm_ioctl_get_supported_cpuid(struct kvm *kvm,
-				    struct kvm_cpuid2 *cpuid,
-				    struct kvm_cpuid_entry2 __user *entries)
-{
-	struct kvm_cpuid_entry2 *cpuid_entries;
-	int limit, nent = 0, r = -E2BIG;
-	u32 func;
-
-	if (cpuid->nent < 1)
-		goto out;
-	r = -ENOMEM;
-	cpuid_entries = vmalloc(sizeof(struct kvm_cpuid_entry2) * cpuid->nent);
-	if (!cpuid_entries)
-		goto out;
-
-	do_cpuid_ent(&cpuid_entries[0], 0, 0, &nent, cpuid->nent);
-	limit = cpuid_entries[0].eax;
-	for (func = 1; func <= limit && nent < cpuid->nent; ++func)
-		do_cpuid_ent(&cpuid_entries[nent], func, 0,
-				&nent, cpuid->nent);
-	r = -E2BIG;
-	if (nent >= cpuid->nent)
-		goto out_free;
-
-	do_cpuid_ent(&cpuid_entries[nent], 0x80000000, 0, &nent, cpuid->nent);
-	limit = cpuid_entries[nent - 1].eax;
-	for (func = 0x80000001; func <= limit && nent < cpuid->nent; ++func)
-		do_cpuid_ent(&cpuid_entries[nent], func, 0,
-			       &nent, cpuid->nent);
-	r = -EFAULT;
-	if (copy_to_user(entries, cpuid_entries,
-			nent * sizeof(struct kvm_cpuid_entry2)))
-		goto out_free;
-	cpuid->nent = nent;
-	r = 0;
-
-out_free:
-	vfree(cpuid_entries);
-out:
-	return r;
-}
-
-static int kvm_vcpu_ioctl_get_lapic(struct kvm_vcpu *vcpu,
-				    struct kvm_lapic_state *s)
-{
-	vcpu_load(vcpu);
-	memcpy(s->regs, vcpu->arch.apic->regs, sizeof *s);
-	vcpu_put(vcpu);
-
-	return 0;
-}
-
-static int kvm_vcpu_ioctl_set_lapic(struct kvm_vcpu *vcpu,
-				    struct kvm_lapic_state *s)
-{
-	vcpu_load(vcpu);
-	memcpy(vcpu->arch.apic->regs, s->regs, sizeof *s);
-	kvm_apic_post_state_restore(vcpu);
-	vcpu_put(vcpu);
-
-	return 0;
-}
-
-static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
-				    struct kvm_interrupt *irq)
-{
-	if (irq->irq < 0 || irq->irq >= 256)
-		return -EINVAL;
-	if (irqchip_in_kernel(vcpu->kvm))
-		return -ENXIO;
-	vcpu_load(vcpu);
-
-	set_bit(irq->irq, vcpu->arch.irq_pending);
-	set_bit(irq->irq / BITS_PER_LONG, &vcpu->arch.irq_summary);
-
-	vcpu_put(vcpu);
-
-	return 0;
-}
-
-long kvm_arch_vcpu_ioctl(struct file *filp,
-			 unsigned int ioctl, unsigned long arg)
-{
-	struct kvm_vcpu *vcpu = filp->private_data;
-	void __user *argp = (void __user *)arg;
-	int r;
-
-	switch (ioctl) {
-	case KVM_GET_LAPIC: {
-		struct kvm_lapic_state lapic;
-
-		memset(&lapic, 0, sizeof lapic);
-		r = kvm_vcpu_ioctl_get_lapic(vcpu, &lapic);
-		if (r)
-			goto out;
-		r = -EFAULT;
-		if (copy_to_user(argp, &lapic, sizeof lapic))
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_SET_LAPIC: {
-		struct kvm_lapic_state lapic;
-
-		r = -EFAULT;
-		if (copy_from_user(&lapic, argp, sizeof lapic))
-			goto out;
-		r = kvm_vcpu_ioctl_set_lapic(vcpu, &lapic);;
-		if (r)
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_INTERRUPT: {
-		struct kvm_interrupt irq;
-
-		r = -EFAULT;
-		if (copy_from_user(&irq, argp, sizeof irq))
-			goto out;
-		r = kvm_vcpu_ioctl_interrupt(vcpu, &irq);
-		if (r)
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_SET_CPUID: {
-		struct kvm_cpuid __user *cpuid_arg = argp;
-		struct kvm_cpuid cpuid;
-
-		r = -EFAULT;
-		if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
-			goto out;
-		r = kvm_vcpu_ioctl_set_cpuid(vcpu, &cpuid, cpuid_arg->entries);
-		if (r)
-			goto out;
-		break;
-	}
-	case KVM_SET_CPUID2: {
-		struct kvm_cpuid2 __user *cpuid_arg = argp;
-		struct kvm_cpuid2 cpuid;
-
-		r = -EFAULT;
-		if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
-			goto out;
-		r = kvm_vcpu_ioctl_set_cpuid2(vcpu, &cpuid,
-				cpuid_arg->entries);
-		if (r)
-			goto out;
-		break;
-	}
-	case KVM_GET_CPUID2: {
-		struct kvm_cpuid2 __user *cpuid_arg = argp;
-		struct kvm_cpuid2 cpuid;
-
-		r = -EFAULT;
-		if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
-			goto out;
-		r = kvm_vcpu_ioctl_get_cpuid2(vcpu, &cpuid,
-				cpuid_arg->entries);
-		if (r)
-			goto out;
-		r = -EFAULT;
-		if (copy_to_user(cpuid_arg, &cpuid, sizeof cpuid))
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_GET_MSRS:
-		r = msr_io(vcpu, argp, kvm_get_msr, 1);
-		break;
-	case KVM_SET_MSRS:
-		r = msr_io(vcpu, argp, do_set_msr, 0);
-		break;
-	default:
-		r = -EINVAL;
-	}
-out:
-	return r;
-}
-
-static int kvm_vm_ioctl_set_tss_addr(struct kvm *kvm, unsigned long addr)
-{
-	int ret;
-
-	if (addr > (unsigned int)(-3 * PAGE_SIZE))
-		return -1;
-	ret = kvm_x86_ops->set_tss_addr(kvm, addr);
-	return ret;
-}
-
-static int kvm_vm_ioctl_set_nr_mmu_pages(struct kvm *kvm,
-					  u32 kvm_nr_mmu_pages)
-{
-	if (kvm_nr_mmu_pages < KVM_MIN_ALLOC_MMU_PAGES)
-		return -EINVAL;
-
-	mutex_lock(&kvm->lock);
-
-	kvm_mmu_change_mmu_pages(kvm, kvm_nr_mmu_pages);
-	kvm->arch.n_requested_mmu_pages = kvm_nr_mmu_pages;
-
-	mutex_unlock(&kvm->lock);
-	return 0;
-}
-
-static int kvm_vm_ioctl_get_nr_mmu_pages(struct kvm *kvm)
-{
-	return kvm->arch.n_alloc_mmu_pages;
-}
-
-gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
-{
-	int i;
-	struct kvm_mem_alias *alias;
-
-	for (i = 0; i < kvm->arch.naliases; ++i) {
-		alias = &kvm->arch.aliases[i];
-		if (gfn >= alias->base_gfn
-		    && gfn < alias->base_gfn + alias->npages)
-			return alias->target_gfn + gfn - alias->base_gfn;
-	}
-	return gfn;
-}
-
-/*
- * Set a new alias region.  Aliases map a portion of physical memory into
- * another portion.  This is useful for memory windows, for example the PC
- * VGA region.
- */
-static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm,
-					 struct kvm_memory_alias *alias)
-{
-	int r, n;
-	struct kvm_mem_alias *p;
-
-	r = -EINVAL;
-	/* General sanity checks */
-	if (alias->memory_size & (PAGE_SIZE - 1))
-		goto out;
-	if (alias->guest_phys_addr & (PAGE_SIZE - 1))
-		goto out;
-	if (alias->slot >= KVM_ALIAS_SLOTS)
-		goto out;
-	if (alias->guest_phys_addr + alias->memory_size
-	    < alias->guest_phys_addr)
-		goto out;
-	if (alias->target_phys_addr + alias->memory_size
-	    < alias->target_phys_addr)
-		goto out;
-
-	mutex_lock(&kvm->lock);
-
-	p = &kvm->arch.aliases[alias->slot];
-	p->base_gfn = alias->guest_phys_addr >> PAGE_SHIFT;
-	p->npages = alias->memory_size >> PAGE_SHIFT;
-	p->target_gfn = alias->target_phys_addr >> PAGE_SHIFT;
-
-	for (n = KVM_ALIAS_SLOTS; n > 0; --n)
-		if (kvm->arch.aliases[n - 1].npages)
-			break;
-	kvm->arch.naliases = n;
-
-	kvm_mmu_zap_all(kvm);
-
-	mutex_unlock(&kvm->lock);
-
-	return 0;
-
-out:
-	return r;
-}
-
-static int kvm_vm_ioctl_get_irqchip(struct kvm *kvm, struct kvm_irqchip *chip)
-{
-	int r;
-
-	r = 0;
-	switch (chip->chip_id) {
-	case KVM_IRQCHIP_PIC_MASTER:
-		memcpy(&chip->chip.pic,
-			&pic_irqchip(kvm)->pics[0],
-			sizeof(struct kvm_pic_state));
-		break;
-	case KVM_IRQCHIP_PIC_SLAVE:
-		memcpy(&chip->chip.pic,
-			&pic_irqchip(kvm)->pics[1],
-			sizeof(struct kvm_pic_state));
-		break;
-	case KVM_IRQCHIP_IOAPIC:
-		memcpy(&chip->chip.ioapic,
-			ioapic_irqchip(kvm),
-			sizeof(struct kvm_ioapic_state));
-		break;
-	default:
-		r = -EINVAL;
-		break;
-	}
-	return r;
-}
-
-static int kvm_vm_ioctl_set_irqchip(struct kvm *kvm, struct kvm_irqchip *chip)
-{
-	int r;
-
-	r = 0;
-	switch (chip->chip_id) {
-	case KVM_IRQCHIP_PIC_MASTER:
-		memcpy(&pic_irqchip(kvm)->pics[0],
-			&chip->chip.pic,
-			sizeof(struct kvm_pic_state));
-		break;
-	case KVM_IRQCHIP_PIC_SLAVE:
-		memcpy(&pic_irqchip(kvm)->pics[1],
-			&chip->chip.pic,
-			sizeof(struct kvm_pic_state));
-		break;
-	case KVM_IRQCHIP_IOAPIC:
-		memcpy(ioapic_irqchip(kvm),
-			&chip->chip.ioapic,
-			sizeof(struct kvm_ioapic_state));
-		break;
-	default:
-		r = -EINVAL;
-		break;
-	}
-	kvm_pic_update_irq(pic_irqchip(kvm));
-	return r;
-}
-
-/*
- * Get (and clear) the dirty memory log for a memory slot.
- */
-int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
-				      struct kvm_dirty_log *log)
-{
-	int r;
-	int n;
-	struct kvm_memory_slot *memslot;
-	int is_dirty = 0;
-
-	mutex_lock(&kvm->lock);
-
-	r = kvm_get_dirty_log(kvm, log, &is_dirty);
-	if (r)
-		goto out;
-
-	/* If nothing is dirty, don't bother messing with page tables. */
-	if (is_dirty) {
-		kvm_mmu_slot_remove_write_access(kvm, log->slot);
-		kvm_flush_remote_tlbs(kvm);
-		memslot = &kvm->memslots[log->slot];
-		n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
-		memset(memslot->dirty_bitmap, 0, n);
-	}
-	r = 0;
-out:
-	mutex_unlock(&kvm->lock);
-	return r;
-}
-
-long kvm_arch_vm_ioctl(struct file *filp,
-		       unsigned int ioctl, unsigned long arg)
-{
-	struct kvm *kvm = filp->private_data;
-	void __user *argp = (void __user *)arg;
-	int r = -EINVAL;
-
-	switch (ioctl) {
-	case KVM_SET_TSS_ADDR:
-		r = kvm_vm_ioctl_set_tss_addr(kvm, arg);
-		if (r < 0)
-			goto out;
-		break;
-	case KVM_SET_MEMORY_REGION: {
-		struct kvm_memory_region kvm_mem;
-		struct kvm_userspace_memory_region kvm_userspace_mem;
-
-		r = -EFAULT;
-		if (copy_from_user(&kvm_mem, argp, sizeof kvm_mem))
-			goto out;
-		kvm_userspace_mem.slot = kvm_mem.slot;
-		kvm_userspace_mem.flags = kvm_mem.flags;
-		kvm_userspace_mem.guest_phys_addr = kvm_mem.guest_phys_addr;
-		kvm_userspace_mem.memory_size = kvm_mem.memory_size;
-		r = kvm_vm_ioctl_set_memory_region(kvm, &kvm_userspace_mem, 0);
-		if (r)
-			goto out;
-		break;
-	}
-	case KVM_SET_NR_MMU_PAGES:
-		r = kvm_vm_ioctl_set_nr_mmu_pages(kvm, arg);
-		if (r)
-			goto out;
-		break;
-	case KVM_GET_NR_MMU_PAGES:
-		r = kvm_vm_ioctl_get_nr_mmu_pages(kvm);
-		break;
-	case KVM_SET_MEMORY_ALIAS: {
-		struct kvm_memory_alias alias;
-
-		r = -EFAULT;
-		if (copy_from_user(&alias, argp, sizeof alias))
-			goto out;
-		r = kvm_vm_ioctl_set_memory_alias(kvm, &alias);
-		if (r)
-			goto out;
-		break;
-	}
-	case KVM_CREATE_IRQCHIP:
-		r = -ENOMEM;
-		kvm->arch.vpic = kvm_create_pic(kvm);
-		if (kvm->arch.vpic) {
-			r = kvm_ioapic_init(kvm);
-			if (r) {
-				kfree(kvm->arch.vpic);
-				kvm->arch.vpic = NULL;
-				goto out;
-			}
-		} else
-			goto out;
-		break;
-	case KVM_IRQ_LINE: {
-		struct kvm_irq_level irq_event;
-
-		r = -EFAULT;
-		if (copy_from_user(&irq_event, argp, sizeof irq_event))
-			goto out;
-		if (irqchip_in_kernel(kvm)) {
-			mutex_lock(&kvm->lock);
-			if (irq_event.irq < 16)
-				kvm_pic_set_irq(pic_irqchip(kvm),
-					irq_event.irq,
-					irq_event.level);
-			kvm_ioapic_set_irq(kvm->arch.vioapic,
-					irq_event.irq,
-					irq_event.level);
-			mutex_unlock(&kvm->lock);
-			r = 0;
-		}
-		break;
-	}
-	case KVM_GET_IRQCHIP: {
-		/* 0: PIC master, 1: PIC slave, 2: IOAPIC */
-		struct kvm_irqchip chip;
-
-		r = -EFAULT;
-		if (copy_from_user(&chip, argp, sizeof chip))
-			goto out;
-		r = -ENXIO;
-		if (!irqchip_in_kernel(kvm))
-			goto out;
-		r = kvm_vm_ioctl_get_irqchip(kvm, &chip);
-		if (r)
-			goto out;
-		r = -EFAULT;
-		if (copy_to_user(argp, &chip, sizeof chip))
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_SET_IRQCHIP: {
-		/* 0: PIC master, 1: PIC slave, 2: IOAPIC */
-		struct kvm_irqchip chip;
-
-		r = -EFAULT;
-		if (copy_from_user(&chip, argp, sizeof chip))
-			goto out;
-		r = -ENXIO;
-		if (!irqchip_in_kernel(kvm))
-			goto out;
-		r = kvm_vm_ioctl_set_irqchip(kvm, &chip);
-		if (r)
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_GET_SUPPORTED_CPUID: {
-		struct kvm_cpuid2 __user *cpuid_arg = argp;
-		struct kvm_cpuid2 cpuid;
-
-		r = -EFAULT;
-		if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
-			goto out;
-		r = kvm_vm_ioctl_get_supported_cpuid(kvm, &cpuid,
-			cpuid_arg->entries);
-		if (r)
-			goto out;
-
-		r = -EFAULT;
-		if (copy_to_user(cpuid_arg, &cpuid, sizeof cpuid))
-			goto out;
-		r = 0;
-		break;
-	}
-	default:
-		;
-	}
-out:
-	return r;
-}
-
-static void kvm_init_msr_list(void)
-{
-	u32 dummy[2];
-	unsigned i, j;
-
-	for (i = j = 0; i < ARRAY_SIZE(msrs_to_save); i++) {
-		if (rdmsr_safe(msrs_to_save[i], &dummy[0], &dummy[1]) < 0)
-			continue;
-		if (j < i)
-			msrs_to_save[j] = msrs_to_save[i];
-		j++;
-	}
-	num_msrs_to_save = j;
-}
-
-/*
- * Only apic need an MMIO device hook, so shortcut now..
- */
-static struct kvm_io_device *vcpu_find_pervcpu_dev(struct kvm_vcpu *vcpu,
-						gpa_t addr)
-{
-	struct kvm_io_device *dev;
-
-	if (vcpu->arch.apic) {
-		dev = &vcpu->arch.apic->dev;
-		if (dev->in_range(dev, addr))
-			return dev;
-	}
-	return NULL;
-}
-
-
-static struct kvm_io_device *vcpu_find_mmio_dev(struct kvm_vcpu *vcpu,
-						gpa_t addr)
-{
-	struct kvm_io_device *dev;
-
-	dev = vcpu_find_pervcpu_dev(vcpu, addr);
-	if (dev == NULL)
-		dev = kvm_io_bus_find_dev(&vcpu->kvm->mmio_bus, addr);
-	return dev;
-}
-
-int emulator_read_std(unsigned long addr,
-			     void *val,
-			     unsigned int bytes,
-			     struct kvm_vcpu *vcpu)
-{
-	void *data = val;
-
-	while (bytes) {
-		gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
-		unsigned offset = addr & (PAGE_SIZE-1);
-		unsigned tocopy = min(bytes, (unsigned)PAGE_SIZE - offset);
-		int ret;
-
-		if (gpa == UNMAPPED_GVA)
-			return X86EMUL_PROPAGATE_FAULT;
-		ret = kvm_read_guest(vcpu->kvm, gpa, data, tocopy);
-		if (ret < 0)
-			return X86EMUL_UNHANDLEABLE;
-
-		bytes -= tocopy;
-		data += tocopy;
-		addr += tocopy;
-	}
-
-	return X86EMUL_CONTINUE;
-}
-EXPORT_SYMBOL_GPL(emulator_read_std);
-
-static int emulator_read_emulated(unsigned long addr,
-				  void *val,
-				  unsigned int bytes,
-				  struct kvm_vcpu *vcpu)
-{
-	struct kvm_io_device *mmio_dev;
-	gpa_t                 gpa;
-
-	if (vcpu->mmio_read_completed) {
-		memcpy(val, vcpu->mmio_data, bytes);
-		vcpu->mmio_read_completed = 0;
-		return X86EMUL_CONTINUE;
-	}
-
-	gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
-
-	/* For APIC access vmexit */
-	if ((gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
-		goto mmio;
-
-	if (emulator_read_std(addr, val, bytes, vcpu)
-			== X86EMUL_CONTINUE)
-		return X86EMUL_CONTINUE;
-	if (gpa == UNMAPPED_GVA)
-		return X86EMUL_PROPAGATE_FAULT;
-
-mmio:
-	/*
-	 * Is this MMIO handled locally?
-	 */
-	mmio_dev = vcpu_find_mmio_dev(vcpu, gpa);
-	if (mmio_dev) {
-		kvm_iodevice_read(mmio_dev, gpa, bytes, val);
-		return X86EMUL_CONTINUE;
-	}
-
-	vcpu->mmio_needed = 1;
-	vcpu->mmio_phys_addr = gpa;
-	vcpu->mmio_size = bytes;
-	vcpu->mmio_is_write = 0;
-
-	return X86EMUL_UNHANDLEABLE;
-}
-
-static int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
-			       const void *val, int bytes)
-{
-	int ret;
-
-	ret = kvm_write_guest(vcpu->kvm, gpa, val, bytes);
-	if (ret < 0)
-		return 0;
-	kvm_mmu_pte_write(vcpu, gpa, val, bytes);
-	return 1;
-}
-
-static int emulator_write_emulated_onepage(unsigned long addr,
-					   const void *val,
-					   unsigned int bytes,
-					   struct kvm_vcpu *vcpu)
-{
-	struct kvm_io_device *mmio_dev;
-	gpa_t                 gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
-
-	if (gpa == UNMAPPED_GVA) {
-		kvm_inject_page_fault(vcpu, addr, 2);
-		return X86EMUL_PROPAGATE_FAULT;
-	}
-
-	/* For APIC access vmexit */
-	if ((gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
-		goto mmio;
-
-	if (emulator_write_phys(vcpu, gpa, val, bytes))
-		return X86EMUL_CONTINUE;
-
-mmio:
-	/*
-	 * Is this MMIO handled locally?
-	 */
-	mmio_dev = vcpu_find_mmio_dev(vcpu, gpa);
-	if (mmio_dev) {
-		kvm_iodevice_write(mmio_dev, gpa, bytes, val);
-		return X86EMUL_CONTINUE;
-	}
-
-	vcpu->mmio_needed = 1;
-	vcpu->mmio_phys_addr = gpa;
-	vcpu->mmio_size = bytes;
-	vcpu->mmio_is_write = 1;
-	memcpy(vcpu->mmio_data, val, bytes);
-
-	return X86EMUL_CONTINUE;
-}
-
-int emulator_write_emulated(unsigned long addr,
-				   const void *val,
-				   unsigned int bytes,
-				   struct kvm_vcpu *vcpu)
-{
-	/* Crossing a page boundary? */
-	if (((addr + bytes - 1) ^ addr) & PAGE_MASK) {
-		int rc, now;
-
-		now = -addr & ~PAGE_MASK;
-		rc = emulator_write_emulated_onepage(addr, val, now, vcpu);
-		if (rc != X86EMUL_CONTINUE)
-			return rc;
-		addr += now;
-		val += now;
-		bytes -= now;
-	}
-	return emulator_write_emulated_onepage(addr, val, bytes, vcpu);
-}
-EXPORT_SYMBOL_GPL(emulator_write_emulated);
-
-static int emulator_cmpxchg_emulated(unsigned long addr,
-				     const void *old,
-				     const void *new,
-				     unsigned int bytes,
-				     struct kvm_vcpu *vcpu)
-{
-	static int reported;
-
-	if (!reported) {
-		reported = 1;
-		printk(KERN_WARNING "kvm: emulating exchange as write\n");
-	}
-#ifndef CONFIG_X86_64
-	/* guests cmpxchg8b have to be emulated atomically */
-	if (bytes == 8) {
-		gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
-		struct page *page;
-		char *addr;
-		u64 val;
-
-		if (gpa == UNMAPPED_GVA ||
-		   (gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
-			goto emul_write;
-
-		if (((gpa + bytes - 1) & PAGE_MASK) != (gpa & PAGE_MASK))
-			goto emul_write;
-
-		val = *(u64 *)new;
-		page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
-		addr = kmap_atomic(page, KM_USER0);
-		set_64bit((u64 *)(addr + offset_in_page(gpa)), val);
-		kunmap_atomic(addr, KM_USER0);
-		kvm_release_page_dirty(page);
-	}
-emul_write:
-#endif
-
-	return emulator_write_emulated(addr, new, bytes, vcpu);
-}
-
-static unsigned long get_segment_base(struct kvm_vcpu *vcpu, int seg)
-{
-	return kvm_x86_ops->get_segment_base(vcpu, seg);
-}
-
-int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address)
-{
-	return X86EMUL_CONTINUE;
-}
-
-int emulate_clts(struct kvm_vcpu *vcpu)
-{
-	kvm_x86_ops->set_cr0(vcpu, vcpu->arch.cr0 & ~X86_CR0_TS);
-	return X86EMUL_CONTINUE;
-}
-
-int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr, unsigned long *dest)
-{
-	struct kvm_vcpu *vcpu = ctxt->vcpu;
-
-	switch (dr) {
-	case 0 ... 3:
-		*dest = kvm_x86_ops->get_dr(vcpu, dr);
-		return X86EMUL_CONTINUE;
-	default:
-		pr_unimpl(vcpu, "%s: unexpected dr %u\n", __FUNCTION__, dr);
-		return X86EMUL_UNHANDLEABLE;
-	}
-}
-
-int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr, unsigned long value)
-{
-	unsigned long mask = (ctxt->mode == X86EMUL_MODE_PROT64) ? ~0ULL : ~0U;
-	int exception;
-
-	kvm_x86_ops->set_dr(ctxt->vcpu, dr, value & mask, &exception);
-	if (exception) {
-		/* FIXME: better handling */
-		return X86EMUL_UNHANDLEABLE;
-	}
-	return X86EMUL_CONTINUE;
-}
-
-void kvm_report_emulation_failure(struct kvm_vcpu *vcpu, const char *context)
-{
-	static int reported;
-	u8 opcodes[4];
-	unsigned long rip = vcpu->arch.rip;
-	unsigned long rip_linear;
-
-	rip_linear = rip + get_segment_base(vcpu, VCPU_SREG_CS);
-
-	if (reported)
-		return;
-
-	emulator_read_std(rip_linear, (void *)opcodes, 4, vcpu);
-
-	printk(KERN_ERR "emulation failed (%s) rip %lx %02x %02x %02x %02x\n",
-	       context, rip, opcodes[0], opcodes[1], opcodes[2], opcodes[3]);
-	reported = 1;
-}
-EXPORT_SYMBOL_GPL(kvm_report_emulation_failure);
-
-struct x86_emulate_ops emulate_ops = {
-	.read_std            = emulator_read_std,
-	.read_emulated       = emulator_read_emulated,
-	.write_emulated      = emulator_write_emulated,
-	.cmpxchg_emulated    = emulator_cmpxchg_emulated,
-};
-
-int emulate_instruction(struct kvm_vcpu *vcpu,
-			struct kvm_run *run,
-			unsigned long cr2,
-			u16 error_code,
-			int no_decode)
-{
-	int r;
-
-	vcpu->arch.mmio_fault_cr2 = cr2;
-	kvm_x86_ops->cache_regs(vcpu);
-
-	vcpu->mmio_is_write = 0;
-	vcpu->arch.pio.string = 0;
-
-	if (!no_decode) {
-		int cs_db, cs_l;
-		kvm_x86_ops->get_cs_db_l_bits(vcpu, &cs_db, &cs_l);
-
-		vcpu->arch.emulate_ctxt.vcpu = vcpu;
-		vcpu->arch.emulate_ctxt.eflags = kvm_x86_ops->get_rflags(vcpu);
-		vcpu->arch.emulate_ctxt.mode =
-			(vcpu->arch.emulate_ctxt.eflags & X86_EFLAGS_VM)
-			? X86EMUL_MODE_REAL : cs_l
-			? X86EMUL_MODE_PROT64 :	cs_db
-			? X86EMUL_MODE_PROT32 : X86EMUL_MODE_PROT16;
-
-		if (vcpu->arch.emulate_ctxt.mode == X86EMUL_MODE_PROT64) {
-			vcpu->arch.emulate_ctxt.cs_base = 0;
-			vcpu->arch.emulate_ctxt.ds_base = 0;
-			vcpu->arch.emulate_ctxt.es_base = 0;
-			vcpu->arch.emulate_ctxt.ss_base = 0;
-		} else {
-			vcpu->arch.emulate_ctxt.cs_base =
-					get_segment_base(vcpu, VCPU_SREG_CS);
-			vcpu->arch.emulate_ctxt.ds_base =
-					get_segment_base(vcpu, VCPU_SREG_DS);
-			vcpu->arch.emulate_ctxt.es_base =
-					get_segment_base(vcpu, VCPU_SREG_ES);
-			vcpu->arch.emulate_ctxt.ss_base =
-					get_segment_base(vcpu, VCPU_SREG_SS);
-		}
-
-		vcpu->arch.emulate_ctxt.gs_base =
-					get_segment_base(vcpu, VCPU_SREG_GS);
-		vcpu->arch.emulate_ctxt.fs_base =
-					get_segment_base(vcpu, VCPU_SREG_FS);
-
-		r = x86_decode_insn(&vcpu->arch.emulate_ctxt, &emulate_ops);
-		++vcpu->stat.insn_emulation;
-		if (r)  {
-			++vcpu->stat.insn_emulation_fail;
-			if (kvm_mmu_unprotect_page_virt(vcpu, cr2))
-				return EMULATE_DONE;
-			return EMULATE_FAIL;
-		}
-	}
-
-	r = x86_emulate_insn(&vcpu->arch.emulate_ctxt, &emulate_ops);
-
-	if (vcpu->arch.pio.string)
-		return EMULATE_DO_MMIO;
-
-	if ((r || vcpu->mmio_is_write) && run) {
-		run->exit_reason = KVM_EXIT_MMIO;
-		run->mmio.phys_addr = vcpu->mmio_phys_addr;
-		memcpy(run->mmio.data, vcpu->mmio_data, 8);
-		run->mmio.len = vcpu->mmio_size;
-		run->mmio.is_write = vcpu->mmio_is_write;
-	}
-
-	if (r) {
-		if (kvm_mmu_unprotect_page_virt(vcpu, cr2))
-			return EMULATE_DONE;
-		if (!vcpu->mmio_needed) {
-			kvm_report_emulation_failure(vcpu, "mmio");
-			return EMULATE_FAIL;
-		}
-		return EMULATE_DO_MMIO;
-	}
-
-	kvm_x86_ops->decache_regs(vcpu);
-	kvm_x86_ops->set_rflags(vcpu, vcpu->arch.emulate_ctxt.eflags);
-
-	if (vcpu->mmio_is_write) {
-		vcpu->mmio_needed = 0;
-		return EMULATE_DO_MMIO;
-	}
-
-	return EMULATE_DONE;
-}
-EXPORT_SYMBOL_GPL(emulate_instruction);
-
-static void free_pio_guest_pages(struct kvm_vcpu *vcpu)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(vcpu->arch.pio.guest_pages); ++i)
-		if (vcpu->arch.pio.guest_pages[i]) {
-			kvm_release_page_dirty(vcpu->arch.pio.guest_pages[i]);
-			vcpu->arch.pio.guest_pages[i] = NULL;
-		}
-}
-
-static int pio_copy_data(struct kvm_vcpu *vcpu)
-{
-	void *p = vcpu->arch.pio_data;
-	void *q;
-	unsigned bytes;
-	int nr_pages = vcpu->arch.pio.guest_pages[1] ? 2 : 1;
-
-	q = vmap(vcpu->arch.pio.guest_pages, nr_pages, VM_READ|VM_WRITE,
-		 PAGE_KERNEL);
-	if (!q) {
-		free_pio_guest_pages(vcpu);
-		return -ENOMEM;
-	}
-	q += vcpu->arch.pio.guest_page_offset;
-	bytes = vcpu->arch.pio.size * vcpu->arch.pio.cur_count;
-	if (vcpu->arch.pio.in)
-		memcpy(q, p, bytes);
-	else
-		memcpy(p, q, bytes);
-	q -= vcpu->arch.pio.guest_page_offset;
-	vunmap(q);
-	free_pio_guest_pages(vcpu);
-	return 0;
-}
-
-int complete_pio(struct kvm_vcpu *vcpu)
-{
-	struct kvm_pio_request *io = &vcpu->arch.pio;
-	long delta;
-	int r;
-
-	kvm_x86_ops->cache_regs(vcpu);
-
-	if (!io->string) {
-		if (io->in)
-			memcpy(&vcpu->arch.regs[VCPU_REGS_RAX], vcpu->arch.pio_data,
-			       io->size);
-	} else {
-		if (io->in) {
-			r = pio_copy_data(vcpu);
-			if (r) {
-				kvm_x86_ops->cache_regs(vcpu);
-				return r;
-			}
-		}
-
-		delta = 1;
-		if (io->rep) {
-			delta *= io->cur_count;
-			/*
-			 * The size of the register should really depend on
-			 * current address size.
-			 */
-			vcpu->arch.regs[VCPU_REGS_RCX] -= delta;
-		}
-		if (io->down)
-			delta = -delta;
-		delta *= io->size;
-		if (io->in)
-			vcpu->arch.regs[VCPU_REGS_RDI] += delta;
-		else
-			vcpu->arch.regs[VCPU_REGS_RSI] += delta;
-	}
-
-	kvm_x86_ops->decache_regs(vcpu);
-
-	io->count -= io->cur_count;
-	io->cur_count = 0;
-
-	return 0;
-}
-
-static void kernel_pio(struct kvm_io_device *pio_dev,
-		       struct kvm_vcpu *vcpu,
-		       void *pd)
-{
-	/* TODO: String I/O for in kernel device */
-
-	mutex_lock(&vcpu->kvm->lock);
-	if (vcpu->arch.pio.in)
-		kvm_iodevice_read(pio_dev, vcpu->arch.pio.port,
-				  vcpu->arch.pio.size,
-				  pd);
-	else
-		kvm_iodevice_write(pio_dev, vcpu->arch.pio.port,
-				   vcpu->arch.pio.size,
-				   pd);
-	mutex_unlock(&vcpu->kvm->lock);
-}
-
-static void pio_string_write(struct kvm_io_device *pio_dev,
-			     struct kvm_vcpu *vcpu)
-{
-	struct kvm_pio_request *io = &vcpu->arch.pio;
-	void *pd = vcpu->arch.pio_data;
-	int i;
-
-	mutex_lock(&vcpu->kvm->lock);
-	for (i = 0; i < io->cur_count; i++) {
-		kvm_iodevice_write(pio_dev, io->port,
-				   io->size,
-				   pd);
-		pd += io->size;
-	}
-	mutex_unlock(&vcpu->kvm->lock);
-}
-
-static struct kvm_io_device *vcpu_find_pio_dev(struct kvm_vcpu *vcpu,
-					       gpa_t addr)
-{
-	return kvm_io_bus_find_dev(&vcpu->kvm->pio_bus, addr);
-}
-
-int kvm_emulate_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
-		  int size, unsigned port)
-{
-	struct kvm_io_device *pio_dev;
-
-	vcpu->run->exit_reason = KVM_EXIT_IO;
-	vcpu->run->io.direction = in ? KVM_EXIT_IO_IN : KVM_EXIT_IO_OUT;
-	vcpu->run->io.size = vcpu->arch.pio.size = size;
-	vcpu->run->io.data_offset = KVM_PIO_PAGE_OFFSET * PAGE_SIZE;
-	vcpu->run->io.count = vcpu->arch.pio.count = vcpu->arch.pio.cur_count = 1;
-	vcpu->run->io.port = vcpu->arch.pio.port = port;
-	vcpu->arch.pio.in = in;
-	vcpu->arch.pio.string = 0;
-	vcpu->arch.pio.down = 0;
-	vcpu->arch.pio.guest_page_offset = 0;
-	vcpu->arch.pio.rep = 0;
-
-	kvm_x86_ops->cache_regs(vcpu);
-	memcpy(vcpu->arch.pio_data, &vcpu->arch.regs[VCPU_REGS_RAX], 4);
-	kvm_x86_ops->decache_regs(vcpu);
-
-	kvm_x86_ops->skip_emulated_instruction(vcpu);
-
-	pio_dev = vcpu_find_pio_dev(vcpu, port);
-	if (pio_dev) {
-		kernel_pio(pio_dev, vcpu, vcpu->arch.pio_data);
-		complete_pio(vcpu);
-		return 1;
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(kvm_emulate_pio);
-
-int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
-		  int size, unsigned long count, int down,
-		  gva_t address, int rep, unsigned port)
-{
-	unsigned now, in_page;
-	int i, ret = 0;
-	int nr_pages = 1;
-	struct page *page;
-	struct kvm_io_device *pio_dev;
-
-	vcpu->run->exit_reason = KVM_EXIT_IO;
-	vcpu->run->io.direction = in ? KVM_EXIT_IO_IN : KVM_EXIT_IO_OUT;
-	vcpu->run->io.size = vcpu->arch.pio.size = size;
-	vcpu->run->io.data_offset = KVM_PIO_PAGE_OFFSET * PAGE_SIZE;
-	vcpu->run->io.count = vcpu->arch.pio.count = vcpu->arch.pio.cur_count = count;
-	vcpu->run->io.port = vcpu->arch.pio.port = port;
-	vcpu->arch.pio.in = in;
-	vcpu->arch.pio.string = 1;
-	vcpu->arch.pio.down = down;
-	vcpu->arch.pio.guest_page_offset = offset_in_page(address);
-	vcpu->arch.pio.rep = rep;
-
-	if (!count) {
-		kvm_x86_ops->skip_emulated_instruction(vcpu);
-		return 1;
-	}
-
-	if (!down)
-		in_page = PAGE_SIZE - offset_in_page(address);
-	else
-		in_page = offset_in_page(address) + size;
-	now = min(count, (unsigned long)in_page / size);
-	if (!now) {
-		/*
-		 * String I/O straddles page boundary.  Pin two guest pages
-		 * so that we satisfy atomicity constraints.  Do just one
-		 * transaction to avoid complexity.
-		 */
-		nr_pages = 2;
-		now = 1;
-	}
-	if (down) {
-		/*
-		 * String I/O in reverse.  Yuck.  Kill the guest, fix later.
-		 */
-		pr_unimpl(vcpu, "guest string pio down\n");
-		kvm_inject_gp(vcpu, 0);
-		return 1;
-	}
-	vcpu->run->io.count = now;
-	vcpu->arch.pio.cur_count = now;
-
-	if (vcpu->arch.pio.cur_count == vcpu->arch.pio.count)
-		kvm_x86_ops->skip_emulated_instruction(vcpu);
-
-	for (i = 0; i < nr_pages; ++i) {
-		mutex_lock(&vcpu->kvm->lock);
-		page = gva_to_page(vcpu, address + i * PAGE_SIZE);
-		vcpu->arch.pio.guest_pages[i] = page;
-		mutex_unlock(&vcpu->kvm->lock);
-		if (!page) {
-			kvm_inject_gp(vcpu, 0);
-			free_pio_guest_pages(vcpu);
-			return 1;
-		}
-	}
-
-	pio_dev = vcpu_find_pio_dev(vcpu, port);
-	if (!vcpu->arch.pio.in) {
-		/* string PIO write */
-		ret = pio_copy_data(vcpu);
-		if (ret >= 0 && pio_dev) {
-			pio_string_write(pio_dev, vcpu);
-			complete_pio(vcpu);
-			if (vcpu->arch.pio.count == 0)
-				ret = 1;
-		}
-	} else if (pio_dev)
-		pr_unimpl(vcpu, "no string pio read support yet, "
-		       "port %x size %d count %ld\n",
-			port, size, count);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(kvm_emulate_pio_string);
-
-int kvm_arch_init(void *opaque)
-{
-	int r;
-	struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque;
-
-	r = kvm_mmu_module_init();
-	if (r)
-		goto out_fail;
-
-	kvm_init_msr_list();
-
-	if (kvm_x86_ops) {
-		printk(KERN_ERR "kvm: already loaded the other module\n");
-		r = -EEXIST;
-		goto out;
-	}
-
-	if (!ops->cpu_has_kvm_support()) {
-		printk(KERN_ERR "kvm: no hardware support\n");
-		r = -EOPNOTSUPP;
-		goto out;
-	}
-	if (ops->disabled_by_bios()) {
-		printk(KERN_ERR "kvm: disabled by bios\n");
-		r = -EOPNOTSUPP;
-		goto out;
-	}
-
-	kvm_x86_ops = ops;
-	kvm_mmu_set_nonpresent_ptes(0ull, 0ull);
-	return 0;
-
-out:
-	kvm_mmu_module_exit();
-out_fail:
-	return r;
-}
-
-void kvm_arch_exit(void)
-{
-	kvm_x86_ops = NULL;
-	kvm_mmu_module_exit();
-}
-
-int kvm_emulate_halt(struct kvm_vcpu *vcpu)
-{
-	++vcpu->stat.halt_exits;
-	if (irqchip_in_kernel(vcpu->kvm)) {
-		vcpu->arch.mp_state = VCPU_MP_STATE_HALTED;
-		kvm_vcpu_block(vcpu);
-		if (vcpu->arch.mp_state != VCPU_MP_STATE_RUNNABLE)
-			return -EINTR;
-		return 1;
-	} else {
-		vcpu->run->exit_reason = KVM_EXIT_HLT;
-		return 0;
-	}
-}
-EXPORT_SYMBOL_GPL(kvm_emulate_halt);
-
-int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
-{
-	unsigned long nr, a0, a1, a2, a3, ret;
-
-	kvm_x86_ops->cache_regs(vcpu);
-
-	nr = vcpu->arch.regs[VCPU_REGS_RAX];
-	a0 = vcpu->arch.regs[VCPU_REGS_RBX];
-	a1 = vcpu->arch.regs[VCPU_REGS_RCX];
-	a2 = vcpu->arch.regs[VCPU_REGS_RDX];
-	a3 = vcpu->arch.regs[VCPU_REGS_RSI];
-
-	if (!is_long_mode(vcpu)) {
-		nr &= 0xFFFFFFFF;
-		a0 &= 0xFFFFFFFF;
-		a1 &= 0xFFFFFFFF;
-		a2 &= 0xFFFFFFFF;
-		a3 &= 0xFFFFFFFF;
-	}
-
-	switch (nr) {
-	default:
-		ret = -KVM_ENOSYS;
-		break;
-	}
-	vcpu->arch.regs[VCPU_REGS_RAX] = ret;
-	kvm_x86_ops->decache_regs(vcpu);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(kvm_emulate_hypercall);
-
-int kvm_fix_hypercall(struct kvm_vcpu *vcpu)
-{
-	char instruction[3];
-	int ret = 0;
-
-	mutex_lock(&vcpu->kvm->lock);
-
-	/*
-	 * Blow out the MMU to ensure that no other VCPU has an active mapping
-	 * to ensure that the updated hypercall appears atomically across all
-	 * VCPUs.
-	 */
-	kvm_mmu_zap_all(vcpu->kvm);
-
-	kvm_x86_ops->cache_regs(vcpu);
-	kvm_x86_ops->patch_hypercall(vcpu, instruction);
-	if (emulator_write_emulated(vcpu->arch.rip, instruction, 3, vcpu)
-	    != X86EMUL_CONTINUE)
-		ret = -EFAULT;
-
-	mutex_unlock(&vcpu->kvm->lock);
-
-	return ret;
-}
-
-static u64 mk_cr_64(u64 curr_cr, u32 new_val)
-{
-	return (curr_cr & ~((1ULL << 32) - 1)) | new_val;
-}
-
-void realmode_lgdt(struct kvm_vcpu *vcpu, u16 limit, unsigned long base)
-{
-	struct descriptor_table dt = { limit, base };
-
-	kvm_x86_ops->set_gdt(vcpu, &dt);
-}
-
-void realmode_lidt(struct kvm_vcpu *vcpu, u16 limit, unsigned long base)
-{
-	struct descriptor_table dt = { limit, base };
-
-	kvm_x86_ops->set_idt(vcpu, &dt);
-}
-
-void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
-		   unsigned long *rflags)
-{
-	lmsw(vcpu, msw);
-	*rflags = kvm_x86_ops->get_rflags(vcpu);
-}
-
-unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr)
-{
-	kvm_x86_ops->decache_cr4_guest_bits(vcpu);
-	switch (cr) {
-	case 0:
-		return vcpu->arch.cr0;
-	case 2:
-		return vcpu->arch.cr2;
-	case 3:
-		return vcpu->arch.cr3;
-	case 4:
-		return vcpu->arch.cr4;
-	case 8:
-		return get_cr8(vcpu);
-	default:
-		vcpu_printf(vcpu, "%s: unexpected cr %u\n", __FUNCTION__, cr);
-		return 0;
-	}
-}
-
-void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long val,
-		     unsigned long *rflags)
-{
-	switch (cr) {
-	case 0:
-		set_cr0(vcpu, mk_cr_64(vcpu->arch.cr0, val));
-		*rflags = kvm_x86_ops->get_rflags(vcpu);
-		break;
-	case 2:
-		vcpu->arch.cr2 = val;
-		break;
-	case 3:
-		set_cr3(vcpu, val);
-		break;
-	case 4:
-		set_cr4(vcpu, mk_cr_64(vcpu->arch.cr4, val));
-		break;
-	case 8:
-		set_cr8(vcpu, val & 0xfUL);
-		break;
-	default:
-		vcpu_printf(vcpu, "%s: unexpected cr %u\n", __FUNCTION__, cr);
-	}
-}
-
-static int move_to_next_stateful_cpuid_entry(struct kvm_vcpu *vcpu, int i)
-{
-	struct kvm_cpuid_entry2 *e = &vcpu->arch.cpuid_entries[i];
-	int j, nent = vcpu->arch.cpuid_nent;
-
-	e->flags &= ~KVM_CPUID_FLAG_STATE_READ_NEXT;
-	/* when no next entry is found, the current entry[i] is reselected */
-	for (j = i + 1; j == i; j = (j + 1) % nent) {
-		struct kvm_cpuid_entry2 *ej = &vcpu->arch.cpuid_entries[j];
-		if (ej->function == e->function) {
-			ej->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
-			return j;
-		}
-	}
-	return 0; /* silence gcc, even though control never reaches here */
-}
-
-/* find an entry with matching function, matching index (if needed), and that
- * should be read next (if it's stateful) */
-static int is_matching_cpuid_entry(struct kvm_cpuid_entry2 *e,
-	u32 function, u32 index)
-{
-	if (e->function != function)
-		return 0;
-	if ((e->flags & KVM_CPUID_FLAG_SIGNIFCANT_INDEX) && e->index != index)
-		return 0;
-	if ((e->flags & KVM_CPUID_FLAG_STATEFUL_FUNC) &&
-		!(e->flags & KVM_CPUID_FLAG_STATE_READ_NEXT))
-		return 0;
-	return 1;
-}
-
-void kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
-{
-	int i;
-	u32 function, index;
-	struct kvm_cpuid_entry2 *e, *best;
-
-	kvm_x86_ops->cache_regs(vcpu);
-	function = vcpu->arch.regs[VCPU_REGS_RAX];
-	index = vcpu->arch.regs[VCPU_REGS_RCX];
-	vcpu->arch.regs[VCPU_REGS_RAX] = 0;
-	vcpu->arch.regs[VCPU_REGS_RBX] = 0;
-	vcpu->arch.regs[VCPU_REGS_RCX] = 0;
-	vcpu->arch.regs[VCPU_REGS_RDX] = 0;
-	best = NULL;
-	for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
-		e = &vcpu->arch.cpuid_entries[i];
-		if (is_matching_cpuid_entry(e, function, index)) {
-			if (e->flags & KVM_CPUID_FLAG_STATEFUL_FUNC)
-				move_to_next_stateful_cpuid_entry(vcpu, i);
-			best = e;
-			break;
-		}
-		/*
-		 * Both basic or both extended?
-		 */
-		if (((e->function ^ function) & 0x80000000) == 0)
-			if (!best || e->function > best->function)
-				best = e;
-	}
-	if (best) {
-		vcpu->arch.regs[VCPU_REGS_RAX] = best->eax;
-		vcpu->arch.regs[VCPU_REGS_RBX] = best->ebx;
-		vcpu->arch.regs[VCPU_REGS_RCX] = best->ecx;
-		vcpu->arch.regs[VCPU_REGS_RDX] = best->edx;
-	}
-	kvm_x86_ops->decache_regs(vcpu);
-	kvm_x86_ops->skip_emulated_instruction(vcpu);
-}
-EXPORT_SYMBOL_GPL(kvm_emulate_cpuid);
-
-/*
- * Check if userspace requested an interrupt window, and that the
- * interrupt window is open.
- *
- * No need to exit to userspace if we already have an interrupt queued.
- */
-static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu,
-					  struct kvm_run *kvm_run)
-{
-	return (!vcpu->arch.irq_summary &&
-		kvm_run->request_interrupt_window &&
-		vcpu->arch.interrupt_window_open &&
-		(kvm_x86_ops->get_rflags(vcpu) & X86_EFLAGS_IF));
-}
-
-static void post_kvm_run_save(struct kvm_vcpu *vcpu,
-			      struct kvm_run *kvm_run)
-{
-	kvm_run->if_flag = (kvm_x86_ops->get_rflags(vcpu) & X86_EFLAGS_IF) != 0;
-	kvm_run->cr8 = get_cr8(vcpu);
-	kvm_run->apic_base = kvm_get_apic_base(vcpu);
-	if (irqchip_in_kernel(vcpu->kvm))
-		kvm_run->ready_for_interrupt_injection = 1;
-	else
-		kvm_run->ready_for_interrupt_injection =
-					(vcpu->arch.interrupt_window_open &&
-					 vcpu->arch.irq_summary == 0);
-}
-
-static int __vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	int r;
-
-	if (unlikely(vcpu->arch.mp_state == VCPU_MP_STATE_SIPI_RECEIVED)) {
-		pr_debug("vcpu %d received sipi with vector # %x\n",
-		       vcpu->vcpu_id, vcpu->arch.sipi_vector);
-		kvm_lapic_reset(vcpu);
-		r = kvm_x86_ops->vcpu_reset(vcpu);
-		if (r)
-			return r;
-		vcpu->arch.mp_state = VCPU_MP_STATE_RUNNABLE;
-	}
-
-preempted:
-	if (vcpu->guest_debug.enabled)
-		kvm_x86_ops->guest_debug_pre(vcpu);
-
-again:
-	r = kvm_mmu_reload(vcpu);
-	if (unlikely(r))
-		goto out;
-
-	kvm_inject_pending_timer_irqs(vcpu);
-
-	preempt_disable();
-
-	kvm_x86_ops->prepare_guest_switch(vcpu);
-	kvm_load_guest_fpu(vcpu);
-
-	local_irq_disable();
-
-	if (signal_pending(current)) {
-		local_irq_enable();
-		preempt_enable();
-		r = -EINTR;
-		kvm_run->exit_reason = KVM_EXIT_INTR;
-		++vcpu->stat.signal_exits;
-		goto out;
-	}
-
-	if (vcpu->arch.exception.pending)
-		__queue_exception(vcpu);
-	else if (irqchip_in_kernel(vcpu->kvm))
-		kvm_x86_ops->inject_pending_irq(vcpu);
-	else
-		kvm_x86_ops->inject_pending_vectors(vcpu, kvm_run);
-
-	vcpu->guest_mode = 1;
-	kvm_guest_enter();
-
-	if (vcpu->requests)
-		if (test_and_clear_bit(KVM_REQ_TLB_FLUSH, &vcpu->requests))
-			kvm_x86_ops->tlb_flush(vcpu);
-
-	kvm_x86_ops->run(vcpu, kvm_run);
-
-	vcpu->guest_mode = 0;
-	local_irq_enable();
-
-	++vcpu->stat.exits;
-
-	/*
-	 * We must have an instruction between local_irq_enable() and
-	 * kvm_guest_exit(), so the timer interrupt isn't delayed by
-	 * the interrupt shadow.  The stat.exits increment will do nicely.
-	 * But we need to prevent reordering, hence this barrier():
-	 */
-	barrier();
-
-	kvm_guest_exit();
-
-	preempt_enable();
-
-	/*
-	 * Profile KVM exit RIPs:
-	 */
-	if (unlikely(prof_on == KVM_PROFILING)) {
-		kvm_x86_ops->cache_regs(vcpu);
-		profile_hit(KVM_PROFILING, (void *)vcpu->arch.rip);
-	}
-
-	if (vcpu->arch.exception.pending && kvm_x86_ops->exception_injected(vcpu))
-		vcpu->arch.exception.pending = false;
-
-	r = kvm_x86_ops->handle_exit(kvm_run, vcpu);
-
-	if (r > 0) {
-		if (dm_request_for_irq_injection(vcpu, kvm_run)) {
-			r = -EINTR;
-			kvm_run->exit_reason = KVM_EXIT_INTR;
-			++vcpu->stat.request_irq_exits;
-			goto out;
-		}
-		if (!need_resched())
-			goto again;
-	}
-
-out:
-	if (r > 0) {
-		kvm_resched(vcpu);
-		goto preempted;
-	}
-
-	post_kvm_run_save(vcpu, kvm_run);
-
-	return r;
-}
-
-int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
-{
-	int r;
-	sigset_t sigsaved;
-
-	vcpu_load(vcpu);
-
-	if (unlikely(vcpu->arch.mp_state == VCPU_MP_STATE_UNINITIALIZED)) {
-		kvm_vcpu_block(vcpu);
-		vcpu_put(vcpu);
-		return -EAGAIN;
-	}
-
-	if (vcpu->sigset_active)
-		sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
-
-	/* re-sync apic's tpr */
-	if (!irqchip_in_kernel(vcpu->kvm))
-		set_cr8(vcpu, kvm_run->cr8);
-
-	if (vcpu->arch.pio.cur_count) {
-		r = complete_pio(vcpu);
-		if (r)
-			goto out;
-	}
-#if CONFIG_HAS_IOMEM
-	if (vcpu->mmio_needed) {
-		memcpy(vcpu->mmio_data, kvm_run->mmio.data, 8);
-		vcpu->mmio_read_completed = 1;
-		vcpu->mmio_needed = 0;
-		r = emulate_instruction(vcpu, kvm_run,
-					vcpu->arch.mmio_fault_cr2, 0, 1);
-		if (r == EMULATE_DO_MMIO) {
-			/*
-			 * Read-modify-write.  Back to userspace.
-			 */
-			r = 0;
-			goto out;
-		}
-	}
-#endif
-	if (kvm_run->exit_reason == KVM_EXIT_HYPERCALL) {
-		kvm_x86_ops->cache_regs(vcpu);
-		vcpu->arch.regs[VCPU_REGS_RAX] = kvm_run->hypercall.ret;
-		kvm_x86_ops->decache_regs(vcpu);
-	}
-
-	r = __vcpu_run(vcpu, kvm_run);
-
-out:
-	if (vcpu->sigset_active)
-		sigprocmask(SIG_SETMASK, &sigsaved, NULL);
-
-	vcpu_put(vcpu);
-	return r;
-}
-
-int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
-{
-	vcpu_load(vcpu);
-
-	kvm_x86_ops->cache_regs(vcpu);
-
-	regs->rax = vcpu->arch.regs[VCPU_REGS_RAX];
-	regs->rbx = vcpu->arch.regs[VCPU_REGS_RBX];
-	regs->rcx = vcpu->arch.regs[VCPU_REGS_RCX];
-	regs->rdx = vcpu->arch.regs[VCPU_REGS_RDX];
-	regs->rsi = vcpu->arch.regs[VCPU_REGS_RSI];
-	regs->rdi = vcpu->arch.regs[VCPU_REGS_RDI];
-	regs->rsp = vcpu->arch.regs[VCPU_REGS_RSP];
-	regs->rbp = vcpu->arch.regs[VCPU_REGS_RBP];
-#ifdef CONFIG_X86_64
-	regs->r8 = vcpu->arch.regs[VCPU_REGS_R8];
-	regs->r9 = vcpu->arch.regs[VCPU_REGS_R9];
-	regs->r10 = vcpu->arch.regs[VCPU_REGS_R10];
-	regs->r11 = vcpu->arch.regs[VCPU_REGS_R11];
-	regs->r12 = vcpu->arch.regs[VCPU_REGS_R12];
-	regs->r13 = vcpu->arch.regs[VCPU_REGS_R13];
-	regs->r14 = vcpu->arch.regs[VCPU_REGS_R14];
-	regs->r15 = vcpu->arch.regs[VCPU_REGS_R15];
-#endif
-
-	regs->rip = vcpu->arch.rip;
-	regs->rflags = kvm_x86_ops->get_rflags(vcpu);
-
-	/*
-	 * Don't leak debug flags in case they were set for guest debugging
-	 */
-	if (vcpu->guest_debug.enabled && vcpu->guest_debug.singlestep)
-		regs->rflags &= ~(X86_EFLAGS_TF | X86_EFLAGS_RF);
-
-	vcpu_put(vcpu);
-
-	return 0;
-}
-
-int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
-{
-	vcpu_load(vcpu);
-
-	vcpu->arch.regs[VCPU_REGS_RAX] = regs->rax;
-	vcpu->arch.regs[VCPU_REGS_RBX] = regs->rbx;
-	vcpu->arch.regs[VCPU_REGS_RCX] = regs->rcx;
-	vcpu->arch.regs[VCPU_REGS_RDX] = regs->rdx;
-	vcpu->arch.regs[VCPU_REGS_RSI] = regs->rsi;
-	vcpu->arch.regs[VCPU_REGS_RDI] = regs->rdi;
-	vcpu->arch.regs[VCPU_REGS_RSP] = regs->rsp;
-	vcpu->arch.regs[VCPU_REGS_RBP] = regs->rbp;
-#ifdef CONFIG_X86_64
-	vcpu->arch.regs[VCPU_REGS_R8] = regs->r8;
-	vcpu->arch.regs[VCPU_REGS_R9] = regs->r9;
-	vcpu->arch.regs[VCPU_REGS_R10] = regs->r10;
-	vcpu->arch.regs[VCPU_REGS_R11] = regs->r11;
-	vcpu->arch.regs[VCPU_REGS_R12] = regs->r12;
-	vcpu->arch.regs[VCPU_REGS_R13] = regs->r13;
-	vcpu->arch.regs[VCPU_REGS_R14] = regs->r14;
-	vcpu->arch.regs[VCPU_REGS_R15] = regs->r15;
-#endif
-
-	vcpu->arch.rip = regs->rip;
-	kvm_x86_ops->set_rflags(vcpu, regs->rflags);
-
-	kvm_x86_ops->decache_regs(vcpu);
-
-	vcpu_put(vcpu);
-
-	return 0;
-}
-
-static void get_segment(struct kvm_vcpu *vcpu,
-			struct kvm_segment *var, int seg)
-{
-	return kvm_x86_ops->get_segment(vcpu, var, seg);
-}
-
-void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l)
-{
-	struct kvm_segment cs;
-
-	get_segment(vcpu, &cs, VCPU_SREG_CS);
-	*db = cs.db;
-	*l = cs.l;
-}
-EXPORT_SYMBOL_GPL(kvm_get_cs_db_l_bits);
-
-int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
-				  struct kvm_sregs *sregs)
-{
-	struct descriptor_table dt;
-	int pending_vec;
-
-	vcpu_load(vcpu);
-
-	get_segment(vcpu, &sregs->cs, VCPU_SREG_CS);
-	get_segment(vcpu, &sregs->ds, VCPU_SREG_DS);
-	get_segment(vcpu, &sregs->es, VCPU_SREG_ES);
-	get_segment(vcpu, &sregs->fs, VCPU_SREG_FS);
-	get_segment(vcpu, &sregs->gs, VCPU_SREG_GS);
-	get_segment(vcpu, &sregs->ss, VCPU_SREG_SS);
-
-	get_segment(vcpu, &sregs->tr, VCPU_SREG_TR);
-	get_segment(vcpu, &sregs->ldt, VCPU_SREG_LDTR);
-
-	kvm_x86_ops->get_idt(vcpu, &dt);
-	sregs->idt.limit = dt.limit;
-	sregs->idt.base = dt.base;
-	kvm_x86_ops->get_gdt(vcpu, &dt);
-	sregs->gdt.limit = dt.limit;
-	sregs->gdt.base = dt.base;
-
-	kvm_x86_ops->decache_cr4_guest_bits(vcpu);
-	sregs->cr0 = vcpu->arch.cr0;
-	sregs->cr2 = vcpu->arch.cr2;
-	sregs->cr3 = vcpu->arch.cr3;
-	sregs->cr4 = vcpu->arch.cr4;
-	sregs->cr8 = get_cr8(vcpu);
-	sregs->efer = vcpu->arch.shadow_efer;
-	sregs->apic_base = kvm_get_apic_base(vcpu);
-
-	if (irqchip_in_kernel(vcpu->kvm)) {
-		memset(sregs->interrupt_bitmap, 0,
-		       sizeof sregs->interrupt_bitmap);
-		pending_vec = kvm_x86_ops->get_irq(vcpu);
-		if (pending_vec >= 0)
-			set_bit(pending_vec,
-				(unsigned long *)sregs->interrupt_bitmap);
-	} else
-		memcpy(sregs->interrupt_bitmap, vcpu->arch.irq_pending,
-		       sizeof sregs->interrupt_bitmap);
-
-	vcpu_put(vcpu);
-
-	return 0;
-}
-
-static void set_segment(struct kvm_vcpu *vcpu,
-			struct kvm_segment *var, int seg)
-{
-	return kvm_x86_ops->set_segment(vcpu, var, seg);
-}
-
-int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
-				  struct kvm_sregs *sregs)
-{
-	int mmu_reset_needed = 0;
-	int i, pending_vec, max_bits;
-	struct descriptor_table dt;
-
-	vcpu_load(vcpu);
-
-	dt.limit = sregs->idt.limit;
-	dt.base = sregs->idt.base;
-	kvm_x86_ops->set_idt(vcpu, &dt);
-	dt.limit = sregs->gdt.limit;
-	dt.base = sregs->gdt.base;
-	kvm_x86_ops->set_gdt(vcpu, &dt);
-
-	vcpu->arch.cr2 = sregs->cr2;
-	mmu_reset_needed |= vcpu->arch.cr3 != sregs->cr3;
-	vcpu->arch.cr3 = sregs->cr3;
-
-	set_cr8(vcpu, sregs->cr8);
-
-	mmu_reset_needed |= vcpu->arch.shadow_efer != sregs->efer;
-#ifdef CONFIG_X86_64
-	kvm_x86_ops->set_efer(vcpu, sregs->efer);
-#endif
-	kvm_set_apic_base(vcpu, sregs->apic_base);
-
-	kvm_x86_ops->decache_cr4_guest_bits(vcpu);
-
-	mmu_reset_needed |= vcpu->arch.cr0 != sregs->cr0;
-	vcpu->arch.cr0 = sregs->cr0;
-	kvm_x86_ops->set_cr0(vcpu, sregs->cr0);
-
-	mmu_reset_needed |= vcpu->arch.cr4 != sregs->cr4;
-	kvm_x86_ops->set_cr4(vcpu, sregs->cr4);
-	if (!is_long_mode(vcpu) && is_pae(vcpu))
-		load_pdptrs(vcpu, vcpu->arch.cr3);
-
-	if (mmu_reset_needed)
-		kvm_mmu_reset_context(vcpu);
-
-	if (!irqchip_in_kernel(vcpu->kvm)) {
-		memcpy(vcpu->arch.irq_pending, sregs->interrupt_bitmap,
-		       sizeof vcpu->arch.irq_pending);
-		vcpu->arch.irq_summary = 0;
-		for (i = 0; i < ARRAY_SIZE(vcpu->arch.irq_pending); ++i)
-			if (vcpu->arch.irq_pending[i])
-				__set_bit(i, &vcpu->arch.irq_summary);
-	} else {
-		max_bits = (sizeof sregs->interrupt_bitmap) << 3;
-		pending_vec = find_first_bit(
-			(const unsigned long *)sregs->interrupt_bitmap,
-			max_bits);
-		/* Only pending external irq is handled here */
-		if (pending_vec < max_bits) {
-			kvm_x86_ops->set_irq(vcpu, pending_vec);
-			pr_debug("Set back pending irq %d\n",
-				 pending_vec);
-		}
-	}
-
-	set_segment(vcpu, &sregs->cs, VCPU_SREG_CS);
-	set_segment(vcpu, &sregs->ds, VCPU_SREG_DS);
-	set_segment(vcpu, &sregs->es, VCPU_SREG_ES);
-	set_segment(vcpu, &sregs->fs, VCPU_SREG_FS);
-	set_segment(vcpu, &sregs->gs, VCPU_SREG_GS);
-	set_segment(vcpu, &sregs->ss, VCPU_SREG_SS);
-
-	set_segment(vcpu, &sregs->tr, VCPU_SREG_TR);
-	set_segment(vcpu, &sregs->ldt, VCPU_SREG_LDTR);
-
-	vcpu_put(vcpu);
-
-	return 0;
-}
-
-int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
-				    struct kvm_debug_guest *dbg)
-{
-	int r;
-
-	vcpu_load(vcpu);
-
-	r = kvm_x86_ops->set_guest_debug(vcpu, dbg);
-
-	vcpu_put(vcpu);
-
-	return r;
-}
-
-/*
- * fxsave fpu state.  Taken from x86_64/processor.h.  To be killed when
- * we have asm/x86/processor.h
- */
-struct fxsave {
-	u16	cwd;
-	u16	swd;
-	u16	twd;
-	u16	fop;
-	u64	rip;
-	u64	rdp;
-	u32	mxcsr;
-	u32	mxcsr_mask;
-	u32	st_space[32];	/* 8*16 bytes for each FP-reg = 128 bytes */
-#ifdef CONFIG_X86_64
-	u32	xmm_space[64];	/* 16*16 bytes for each XMM-reg = 256 bytes */
-#else
-	u32	xmm_space[32];	/* 8*16 bytes for each XMM-reg = 128 bytes */
-#endif
-};
-
-/*
- * Translate a guest virtual address to a guest physical address.
- */
-int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
-				    struct kvm_translation *tr)
-{
-	unsigned long vaddr = tr->linear_address;
-	gpa_t gpa;
-
-	vcpu_load(vcpu);
-	mutex_lock(&vcpu->kvm->lock);
-	gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, vaddr);
-	tr->physical_address = gpa;
-	tr->valid = gpa != UNMAPPED_GVA;
-	tr->writeable = 1;
-	tr->usermode = 0;
-	mutex_unlock(&vcpu->kvm->lock);
-	vcpu_put(vcpu);
-
-	return 0;
-}
-
-int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
-{
-	struct fxsave *fxsave = (struct fxsave *)&vcpu->arch.guest_fx_image;
-
-	vcpu_load(vcpu);
-
-	memcpy(fpu->fpr, fxsave->st_space, 128);
-	fpu->fcw = fxsave->cwd;
-	fpu->fsw = fxsave->swd;
-	fpu->ftwx = fxsave->twd;
-	fpu->last_opcode = fxsave->fop;
-	fpu->last_ip = fxsave->rip;
-	fpu->last_dp = fxsave->rdp;
-	memcpy(fpu->xmm, fxsave->xmm_space, sizeof fxsave->xmm_space);
-
-	vcpu_put(vcpu);
-
-	return 0;
-}
-
-int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
-{
-	struct fxsave *fxsave = (struct fxsave *)&vcpu->arch.guest_fx_image;
-
-	vcpu_load(vcpu);
-
-	memcpy(fxsave->st_space, fpu->fpr, 128);
-	fxsave->cwd = fpu->fcw;
-	fxsave->swd = fpu->fsw;
-	fxsave->twd = fpu->ftwx;
-	fxsave->fop = fpu->last_opcode;
-	fxsave->rip = fpu->last_ip;
-	fxsave->rdp = fpu->last_dp;
-	memcpy(fxsave->xmm_space, fpu->xmm, sizeof fxsave->xmm_space);
-
-	vcpu_put(vcpu);
-
-	return 0;
-}
-
-void fx_init(struct kvm_vcpu *vcpu)
-{
-	unsigned after_mxcsr_mask;
-
-	/* Initialize guest FPU by resetting ours and saving into guest's */
-	preempt_disable();
-	fx_save(&vcpu->arch.host_fx_image);
-	fpu_init();
-	fx_save(&vcpu->arch.guest_fx_image);
-	fx_restore(&vcpu->arch.host_fx_image);
-	preempt_enable();
-
-	vcpu->arch.cr0 |= X86_CR0_ET;
-	after_mxcsr_mask = offsetof(struct i387_fxsave_struct, st_space);
-	vcpu->arch.guest_fx_image.mxcsr = 0x1f80;
-	memset((void *)&vcpu->arch.guest_fx_image + after_mxcsr_mask,
-	       0, sizeof(struct i387_fxsave_struct) - after_mxcsr_mask);
-}
-EXPORT_SYMBOL_GPL(fx_init);
-
-void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
-{
-	if (!vcpu->fpu_active || vcpu->guest_fpu_loaded)
-		return;
-
-	vcpu->guest_fpu_loaded = 1;
-	fx_save(&vcpu->arch.host_fx_image);
-	fx_restore(&vcpu->arch.guest_fx_image);
-}
-EXPORT_SYMBOL_GPL(kvm_load_guest_fpu);
-
-void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
-{
-	if (!vcpu->guest_fpu_loaded)
-		return;
-
-	vcpu->guest_fpu_loaded = 0;
-	fx_save(&vcpu->arch.guest_fx_image);
-	fx_restore(&vcpu->arch.host_fx_image);
-	++vcpu->stat.fpu_reload;
-}
-EXPORT_SYMBOL_GPL(kvm_put_guest_fpu);
-
-void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
-{
-	kvm_x86_ops->vcpu_free(vcpu);
-}
-
-struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
-						unsigned int id)
-{
-	return kvm_x86_ops->vcpu_create(kvm, id);
-}
-
-int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
-{
-	int r;
-
-	/* We do fxsave: this must be aligned. */
-	BUG_ON((unsigned long)&vcpu->arch.host_fx_image & 0xF);
-
-	vcpu_load(vcpu);
-	r = kvm_arch_vcpu_reset(vcpu);
-	if (r == 0)
-		r = kvm_mmu_setup(vcpu);
-	vcpu_put(vcpu);
-	if (r < 0)
-		goto free_vcpu;
-
-	return 0;
-free_vcpu:
-	kvm_x86_ops->vcpu_free(vcpu);
-	return r;
-}
-
-void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
-{
-	vcpu_load(vcpu);
-	kvm_mmu_unload(vcpu);
-	vcpu_put(vcpu);
-
-	kvm_x86_ops->vcpu_free(vcpu);
-}
-
-int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu)
-{
-	return kvm_x86_ops->vcpu_reset(vcpu);
-}
-
-void kvm_arch_hardware_enable(void *garbage)
-{
-	kvm_x86_ops->hardware_enable(garbage);
-}
-
-void kvm_arch_hardware_disable(void *garbage)
-{
-	kvm_x86_ops->hardware_disable(garbage);
-}
-
-int kvm_arch_hardware_setup(void)
-{
-	return kvm_x86_ops->hardware_setup();
-}
-
-void kvm_arch_hardware_unsetup(void)
-{
-	kvm_x86_ops->hardware_unsetup();
-}
-
-void kvm_arch_check_processor_compat(void *rtn)
-{
-	kvm_x86_ops->check_processor_compatibility(rtn);
-}
-
-int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
-{
-	struct page *page;
-	struct kvm *kvm;
-	int r;
-
-	BUG_ON(vcpu->kvm == NULL);
-	kvm = vcpu->kvm;
-
-	vcpu->arch.mmu.root_hpa = INVALID_PAGE;
-	if (!irqchip_in_kernel(kvm) || vcpu->vcpu_id == 0)
-		vcpu->arch.mp_state = VCPU_MP_STATE_RUNNABLE;
-	else
-		vcpu->arch.mp_state = VCPU_MP_STATE_UNINITIALIZED;
-
-	page = alloc_page(GFP_KERNEL | __GFP_ZERO);
-	if (!page) {
-		r = -ENOMEM;
-		goto fail;
-	}
-	vcpu->arch.pio_data = page_address(page);
-
-	r = kvm_mmu_create(vcpu);
-	if (r < 0)
-		goto fail_free_pio_data;
-
-	if (irqchip_in_kernel(kvm)) {
-		r = kvm_create_lapic(vcpu);
-		if (r < 0)
-			goto fail_mmu_destroy;
-	}
-
-	return 0;
-
-fail_mmu_destroy:
-	kvm_mmu_destroy(vcpu);
-fail_free_pio_data:
-	free_page((unsigned long)vcpu->arch.pio_data);
-fail:
-	return r;
-}
-
-void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
-{
-	kvm_free_lapic(vcpu);
-	kvm_mmu_destroy(vcpu);
-	free_page((unsigned long)vcpu->arch.pio_data);
-}
-
-struct  kvm *kvm_arch_create_vm(void)
-{
-	struct kvm *kvm = kzalloc(sizeof(struct kvm), GFP_KERNEL);
-
-	if (!kvm)
-		return ERR_PTR(-ENOMEM);
-
-	INIT_LIST_HEAD(&kvm->arch.active_mmu_pages);
-
-	return kvm;
-}
-
-static void kvm_unload_vcpu_mmu(struct kvm_vcpu *vcpu)
-{
-	vcpu_load(vcpu);
-	kvm_mmu_unload(vcpu);
-	vcpu_put(vcpu);
-}
-
-static void kvm_free_vcpus(struct kvm *kvm)
-{
-	unsigned int i;
-
-	/*
-	 * Unpin any mmu pages first.
-	 */
-	for (i = 0; i < KVM_MAX_VCPUS; ++i)
-		if (kvm->vcpus[i])
-			kvm_unload_vcpu_mmu(kvm->vcpus[i]);
-	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
-		if (kvm->vcpus[i]) {
-			kvm_arch_vcpu_free(kvm->vcpus[i]);
-			kvm->vcpus[i] = NULL;
-		}
-	}
-
-}
-
-void kvm_arch_destroy_vm(struct kvm *kvm)
-{
-	kfree(kvm->arch.vpic);
-	kfree(kvm->arch.vioapic);
-	kvm_free_vcpus(kvm);
-	kvm_free_physmem(kvm);
-	kfree(kvm);
-}
-
-int kvm_arch_set_memory_region(struct kvm *kvm,
-				struct kvm_userspace_memory_region *mem,
-				struct kvm_memory_slot old,
-				int user_alloc)
-{
-	int npages = mem->memory_size >> PAGE_SHIFT;
-	struct kvm_memory_slot *memslot = &kvm->memslots[mem->slot];
-
-	/*To keep backward compatibility with older userspace,
-	 *x86 needs to hanlde !user_alloc case.
-	 */
-	if (!user_alloc) {
-		if (npages && !old.rmap) {
-			down_write(&current->mm->mmap_sem);
-			memslot->userspace_addr = do_mmap(NULL, 0,
-						     npages * PAGE_SIZE,
-						     PROT_READ | PROT_WRITE,
-						     MAP_SHARED | MAP_ANONYMOUS,
-						     0);
-			up_write(&current->mm->mmap_sem);
-
-			if (IS_ERR((void *)memslot->userspace_addr))
-				return PTR_ERR((void *)memslot->userspace_addr);
-		} else {
-			if (!old.user_alloc && old.rmap) {
-				int ret;
-
-				down_write(&current->mm->mmap_sem);
-				ret = do_munmap(current->mm, old.userspace_addr,
-						old.npages * PAGE_SIZE);
-				up_write(&current->mm->mmap_sem);
-				if (ret < 0)
-					printk(KERN_WARNING
-				       "kvm_vm_ioctl_set_memory_region: "
-				       "failed to munmap memory\n");
-			}
-		}
-	}
-
-	if (!kvm->arch.n_requested_mmu_pages) {
-		unsigned int nr_mmu_pages = kvm_mmu_calculate_mmu_pages(kvm);
-		kvm_mmu_change_mmu_pages(kvm, nr_mmu_pages);
-	}
-
-	kvm_mmu_slot_remove_write_access(kvm, mem->slot);
-	kvm_flush_remote_tlbs(kvm);
-
-	return 0;
-}
-
-int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.mp_state == VCPU_MP_STATE_RUNNABLE
-	       || vcpu->arch.mp_state == VCPU_MP_STATE_SIPI_RECEIVED;
-}
diff --git a/drivers/kvm/x86.h b/drivers/kvm/x86.h
deleted file mode 100644
index dfb8091971a9..000000000000
--- a/drivers/kvm/x86.h
+++ /dev/null
@@ -1,602 +0,0 @@
-#/*
- * Kernel-based Virtual Machine driver for Linux
- *
- * This header defines architecture specific interfaces, x86 version
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- *
- */
-
-#ifndef KVM_X86_H
-#define KVM_X86_H
-
-#include <linux/types.h>
-#include <linux/mm.h>
-
-#include <linux/kvm.h>
-#include <linux/kvm_para.h>
-
-#include <asm/desc.h>
-
-#include "types.h"
-
-#define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1)
-#define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD))
-#define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS|0xFFFFFF0000000000ULL)
-
-#define KVM_GUEST_CR0_MASK \
-	(X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE \
-	 | X86_CR0_NW | X86_CR0_CD)
-#define KVM_VM_CR0_ALWAYS_ON \
-	(X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE | X86_CR0_TS \
-	 | X86_CR0_MP)
-#define KVM_GUEST_CR4_MASK \
-	(X86_CR4_VME | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE | X86_CR4_VMXE)
-#define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE)
-#define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE)
-
-#define INVALID_PAGE (~(hpa_t)0)
-#define UNMAPPED_GVA (~(gpa_t)0)
-
-#define DE_VECTOR 0
-#define UD_VECTOR 6
-#define NM_VECTOR 7
-#define DF_VECTOR 8
-#define TS_VECTOR 10
-#define NP_VECTOR 11
-#define SS_VECTOR 12
-#define GP_VECTOR 13
-#define PF_VECTOR 14
-
-#define SELECTOR_TI_MASK (1 << 2)
-#define SELECTOR_RPL_MASK 0x03
-
-#define IOPL_SHIFT 12
-
-#define KVM_ALIAS_SLOTS 4
-
-#define KVM_PERMILLE_MMU_PAGES 20
-#define KVM_MIN_ALLOC_MMU_PAGES 64
-#define KVM_NUM_MMU_PAGES 1024
-#define KVM_MIN_FREE_MMU_PAGES 5
-#define KVM_REFILL_PAGES 25
-#define KVM_MAX_CPUID_ENTRIES 40
-
-extern spinlock_t kvm_lock;
-extern struct list_head vm_list;
-
-struct kvm_vcpu;
-struct kvm;
-
-enum {
-	VCPU_REGS_RAX = 0,
-	VCPU_REGS_RCX = 1,
-	VCPU_REGS_RDX = 2,
-	VCPU_REGS_RBX = 3,
-	VCPU_REGS_RSP = 4,
-	VCPU_REGS_RBP = 5,
-	VCPU_REGS_RSI = 6,
-	VCPU_REGS_RDI = 7,
-#ifdef CONFIG_X86_64
-	VCPU_REGS_R8 = 8,
-	VCPU_REGS_R9 = 9,
-	VCPU_REGS_R10 = 10,
-	VCPU_REGS_R11 = 11,
-	VCPU_REGS_R12 = 12,
-	VCPU_REGS_R13 = 13,
-	VCPU_REGS_R14 = 14,
-	VCPU_REGS_R15 = 15,
-#endif
-	NR_VCPU_REGS
-};
-
-enum {
-	VCPU_SREG_CS,
-	VCPU_SREG_DS,
-	VCPU_SREG_ES,
-	VCPU_SREG_FS,
-	VCPU_SREG_GS,
-	VCPU_SREG_SS,
-	VCPU_SREG_TR,
-	VCPU_SREG_LDTR,
-};
-
-#include "x86_emulate.h"
-
-#define KVM_NR_MEM_OBJS 40
-
-/*
- * We don't want allocation failures within the mmu code, so we preallocate
- * enough memory for a single page fault in a cache.
- */
-struct kvm_mmu_memory_cache {
-	int nobjs;
-	void *objects[KVM_NR_MEM_OBJS];
-};
-
-#define NR_PTE_CHAIN_ENTRIES 5
-
-struct kvm_pte_chain {
-	u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES];
-	struct hlist_node link;
-};
-
-/*
- * kvm_mmu_page_role, below, is defined as:
- *
- *   bits 0:3 - total guest paging levels (2-4, or zero for real mode)
- *   bits 4:7 - page table level for this shadow (1-4)
- *   bits 8:9 - page table quadrant for 2-level guests
- *   bit   16 - "metaphysical" - gfn is not a real page (huge page/real mode)
- *   bits 17:19 - common access permissions for all ptes in this shadow page
- */
-union kvm_mmu_page_role {
-	unsigned word;
-	struct {
-		unsigned glevels : 4;
-		unsigned level : 4;
-		unsigned quadrant : 2;
-		unsigned pad_for_nice_hex_output : 6;
-		unsigned metaphysical : 1;
-		unsigned access : 3;
-	};
-};
-
-struct kvm_mmu_page {
-	struct list_head link;
-	struct hlist_node hash_link;
-
-	/*
-	 * The following two entries are used to key the shadow page in the
-	 * hash table.
-	 */
-	gfn_t gfn;
-	union kvm_mmu_page_role role;
-
-	u64 *spt;
-	/* hold the gfn of each spte inside spt */
-	gfn_t *gfns;
-	unsigned long slot_bitmap; /* One bit set per slot which has memory
-				    * in this shadow page.
-				    */
-	int multimapped;         /* More than one parent_pte? */
-	int root_count;          /* Currently serving as active root */
-	union {
-		u64 *parent_pte;               /* !multimapped */
-		struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
-	};
-};
-
-/*
- * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
- * 32-bit).  The kvm_mmu structure abstracts the details of the current mmu
- * mode.
- */
-struct kvm_mmu {
-	void (*new_cr3)(struct kvm_vcpu *vcpu);
-	int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err);
-	void (*free)(struct kvm_vcpu *vcpu);
-	gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva);
-	void (*prefetch_page)(struct kvm_vcpu *vcpu,
-			      struct kvm_mmu_page *page);
-	hpa_t root_hpa;
-	int root_level;
-	int shadow_root_level;
-
-	u64 *pae_root;
-};
-
-struct kvm_vcpu_arch {
-	u64 host_tsc;
-	int interrupt_window_open;
-	unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */
-	DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS);
-	unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */
-	unsigned long rip;      /* needs vcpu_load_rsp_rip() */
-
-	unsigned long cr0;
-	unsigned long cr2;
-	unsigned long cr3;
-	unsigned long cr4;
-	unsigned long cr8;
-	u64 pdptrs[4]; /* pae */
-	u64 shadow_efer;
-	u64 apic_base;
-	struct kvm_lapic *apic;    /* kernel irqchip context */
-#define VCPU_MP_STATE_RUNNABLE          0
-#define VCPU_MP_STATE_UNINITIALIZED     1
-#define VCPU_MP_STATE_INIT_RECEIVED     2
-#define VCPU_MP_STATE_SIPI_RECEIVED     3
-#define VCPU_MP_STATE_HALTED            4
-	int mp_state;
-	int sipi_vector;
-	u64 ia32_misc_enable_msr;
-
-	struct kvm_mmu mmu;
-
-	struct kvm_mmu_memory_cache mmu_pte_chain_cache;
-	struct kvm_mmu_memory_cache mmu_rmap_desc_cache;
-	struct kvm_mmu_memory_cache mmu_page_cache;
-	struct kvm_mmu_memory_cache mmu_page_header_cache;
-
-	gfn_t last_pt_write_gfn;
-	int   last_pt_write_count;
-	u64  *last_pte_updated;
-
-	struct i387_fxsave_struct host_fx_image;
-	struct i387_fxsave_struct guest_fx_image;
-
-	gva_t mmio_fault_cr2;
-	struct kvm_pio_request pio;
-	void *pio_data;
-
-	struct kvm_queued_exception {
-		bool pending;
-		bool has_error_code;
-		u8 nr;
-		u32 error_code;
-	} exception;
-
-	struct {
-		int active;
-		u8 save_iopl;
-		struct kvm_save_segment {
-			u16 selector;
-			unsigned long base;
-			u32 limit;
-			u32 ar;
-		} tr, es, ds, fs, gs;
-	} rmode;
-	int halt_request; /* real mode on Intel only */
-
-	int cpuid_nent;
-	struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES];
-	/* emulate context */
-
-	struct x86_emulate_ctxt emulate_ctxt;
-};
-
-struct kvm_mem_alias {
-	gfn_t base_gfn;
-	unsigned long npages;
-	gfn_t target_gfn;
-};
-
-struct kvm_arch{
-	int naliases;
-	struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS];
-
-	unsigned int n_free_mmu_pages;
-	unsigned int n_requested_mmu_pages;
-	unsigned int n_alloc_mmu_pages;
-	struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
-	/*
-	 * Hash table of struct kvm_mmu_page.
-	 */
-	struct list_head active_mmu_pages;
-	struct kvm_pic *vpic;
-	struct kvm_ioapic *vioapic;
-
-	int round_robin_prev_vcpu;
-	unsigned int tss_addr;
-	struct page *apic_access_page;
-};
-
-struct kvm_vm_stat {
-	u32 mmu_shadow_zapped;
-	u32 mmu_pte_write;
-	u32 mmu_pte_updated;
-	u32 mmu_pde_zapped;
-	u32 mmu_flooded;
-	u32 mmu_recycled;
-	u32 remote_tlb_flush;
-};
-
-struct kvm_vcpu_stat {
-	u32 pf_fixed;
-	u32 pf_guest;
-	u32 tlb_flush;
-	u32 invlpg;
-
-	u32 exits;
-	u32 io_exits;
-	u32 mmio_exits;
-	u32 signal_exits;
-	u32 irq_window_exits;
-	u32 halt_exits;
-	u32 halt_wakeup;
-	u32 request_irq_exits;
-	u32 irq_exits;
-	u32 host_state_reload;
-	u32 efer_reload;
-	u32 fpu_reload;
-	u32 insn_emulation;
-	u32 insn_emulation_fail;
-};
-
-struct descriptor_table {
-	u16 limit;
-	unsigned long base;
-} __attribute__((packed));
-
-struct kvm_x86_ops {
-	int (*cpu_has_kvm_support)(void);          /* __init */
-	int (*disabled_by_bios)(void);             /* __init */
-	void (*hardware_enable)(void *dummy);      /* __init */
-	void (*hardware_disable)(void *dummy);
-	void (*check_processor_compatibility)(void *rtn);
-	int (*hardware_setup)(void);               /* __init */
-	void (*hardware_unsetup)(void);            /* __exit */
-
-	/* Create, but do not attach this VCPU */
-	struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
-	void (*vcpu_free)(struct kvm_vcpu *vcpu);
-	int (*vcpu_reset)(struct kvm_vcpu *vcpu);
-
-	void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
-	void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
-	void (*vcpu_put)(struct kvm_vcpu *vcpu);
-	void (*vcpu_decache)(struct kvm_vcpu *vcpu);
-
-	int (*set_guest_debug)(struct kvm_vcpu *vcpu,
-			       struct kvm_debug_guest *dbg);
-	void (*guest_debug_pre)(struct kvm_vcpu *vcpu);
-	int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
-	int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
-	u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
-	void (*get_segment)(struct kvm_vcpu *vcpu,
-			    struct kvm_segment *var, int seg);
-	void (*set_segment)(struct kvm_vcpu *vcpu,
-			    struct kvm_segment *var, int seg);
-	void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
-	void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
-	void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
-	void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
-	void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
-	void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
-	void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
-	void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
-	void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
-	void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
-	unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr);
-	void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value,
-		       int *exception);
-	void (*cache_regs)(struct kvm_vcpu *vcpu);
-	void (*decache_regs)(struct kvm_vcpu *vcpu);
-	unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
-	void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
-
-	void (*tlb_flush)(struct kvm_vcpu *vcpu);
-
-	void (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
-	int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu);
-	void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
-	void (*patch_hypercall)(struct kvm_vcpu *vcpu,
-				unsigned char *hypercall_addr);
-	int (*get_irq)(struct kvm_vcpu *vcpu);
-	void (*set_irq)(struct kvm_vcpu *vcpu, int vec);
-	void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr,
-				bool has_error_code, u32 error_code);
-	bool (*exception_injected)(struct kvm_vcpu *vcpu);
-	void (*inject_pending_irq)(struct kvm_vcpu *vcpu);
-	void (*inject_pending_vectors)(struct kvm_vcpu *vcpu,
-				       struct kvm_run *run);
-
-	int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
-};
-
-extern struct kvm_x86_ops *kvm_x86_ops;
-
-int kvm_mmu_module_init(void);
-void kvm_mmu_module_exit(void);
-
-void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
-int kvm_mmu_create(struct kvm_vcpu *vcpu);
-int kvm_mmu_setup(struct kvm_vcpu *vcpu);
-void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte);
-
-int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
-void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
-void kvm_mmu_zap_all(struct kvm *kvm);
-unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
-void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
-
-enum emulation_result {
-	EMULATE_DONE,       /* no further processing */
-	EMULATE_DO_MMIO,      /* kvm_run filled with mmio request */
-	EMULATE_FAIL,         /* can't emulate this instruction */
-};
-
-int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run,
-			unsigned long cr2, u16 error_code, int no_decode);
-void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context);
-void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
-void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
-void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
-		   unsigned long *rflags);
-
-unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr);
-void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value,
-		     unsigned long *rflags);
-int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data);
-int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
-
-struct x86_emulate_ctxt;
-
-int kvm_emulate_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
-		     int size, unsigned port);
-int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
-			   int size, unsigned long count, int down,
-			    gva_t address, int rep, unsigned port);
-void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
-int kvm_emulate_halt(struct kvm_vcpu *vcpu);
-int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
-int emulate_clts(struct kvm_vcpu *vcpu);
-int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr,
-		    unsigned long *dest);
-int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
-		    unsigned long value);
-
-void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
-void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0);
-void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0);
-void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0);
-unsigned long get_cr8(struct kvm_vcpu *vcpu);
-void lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
-void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
-
-int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
-int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
-
-void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
-void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
-void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2,
-			   u32 error_code);
-
-void fx_init(struct kvm_vcpu *vcpu);
-
-int emulator_read_std(unsigned long addr,
-		      void *val,
-		      unsigned int bytes,
-		      struct kvm_vcpu *vcpu);
-int emulator_write_emulated(unsigned long addr,
-			    const void *val,
-			    unsigned int bytes,
-			    struct kvm_vcpu *vcpu);
-
-unsigned long segment_base(u16 selector);
-
-void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu);
-void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
-		       const u8 *new, int bytes);
-int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
-void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
-int kvm_mmu_load(struct kvm_vcpu *vcpu);
-void kvm_mmu_unload(struct kvm_vcpu *vcpu);
-
-int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
-
-int kvm_fix_hypercall(struct kvm_vcpu *vcpu);
-
-int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code);
-
-int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
-int complete_pio(struct kvm_vcpu *vcpu);
-
-static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
-{
-	struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
-
-	return (struct kvm_mmu_page *)page_private(page);
-}
-
-static inline u16 read_fs(void)
-{
-	u16 seg;
-	asm("mov %%fs, %0" : "=g"(seg));
-	return seg;
-}
-
-static inline u16 read_gs(void)
-{
-	u16 seg;
-	asm("mov %%gs, %0" : "=g"(seg));
-	return seg;
-}
-
-static inline u16 read_ldt(void)
-{
-	u16 ldt;
-	asm("sldt %0" : "=g"(ldt));
-	return ldt;
-}
-
-static inline void load_fs(u16 sel)
-{
-	asm("mov %0, %%fs" : : "rm"(sel));
-}
-
-static inline void load_gs(u16 sel)
-{
-	asm("mov %0, %%gs" : : "rm"(sel));
-}
-
-#ifndef load_ldt
-static inline void load_ldt(u16 sel)
-{
-	asm("lldt %0" : : "rm"(sel));
-}
-#endif
-
-static inline void get_idt(struct descriptor_table *table)
-{
-	asm("sidt %0" : "=m"(*table));
-}
-
-static inline void get_gdt(struct descriptor_table *table)
-{
-	asm("sgdt %0" : "=m"(*table));
-}
-
-static inline unsigned long read_tr_base(void)
-{
-	u16 tr;
-	asm("str %0" : "=g"(tr));
-	return segment_base(tr);
-}
-
-#ifdef CONFIG_X86_64
-static inline unsigned long read_msr(unsigned long msr)
-{
-	u64 value;
-
-	rdmsrl(msr, value);
-	return value;
-}
-#endif
-
-static inline void fx_save(struct i387_fxsave_struct *image)
-{
-	asm("fxsave (%0)":: "r" (image));
-}
-
-static inline void fx_restore(struct i387_fxsave_struct *image)
-{
-	asm("fxrstor (%0)":: "r" (image));
-}
-
-static inline void fpu_init(void)
-{
-	asm("finit");
-}
-
-static inline u32 get_rdx_init_val(void)
-{
-	return 0x600; /* P6 family */
-}
-
-static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
-{
-	kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
-}
-
-#define ASM_VMX_VMCLEAR_RAX       ".byte 0x66, 0x0f, 0xc7, 0x30"
-#define ASM_VMX_VMLAUNCH          ".byte 0x0f, 0x01, 0xc2"
-#define ASM_VMX_VMRESUME          ".byte 0x0f, 0x01, 0xc3"
-#define ASM_VMX_VMPTRLD_RAX       ".byte 0x0f, 0xc7, 0x30"
-#define ASM_VMX_VMREAD_RDX_RAX    ".byte 0x0f, 0x78, 0xd0"
-#define ASM_VMX_VMWRITE_RAX_RDX   ".byte 0x0f, 0x79, 0xd0"
-#define ASM_VMX_VMWRITE_RSP_RDX   ".byte 0x0f, 0x79, 0xd4"
-#define ASM_VMX_VMXOFF            ".byte 0x0f, 0x01, 0xc4"
-#define ASM_VMX_VMXON_RAX         ".byte 0xf3, 0x0f, 0xc7, 0x30"
-
-#define MSR_IA32_TIME_STAMP_COUNTER		0x010
-
-#define TSS_IOPB_BASE_OFFSET 0x66
-#define TSS_BASE_SIZE 0x68
-#define TSS_IOPB_SIZE (65536 / 8)
-#define TSS_REDIRECTION_SIZE (256 / 8)
-#define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
-
-#endif
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
deleted file mode 100644
index 50b133f68743..000000000000
--- a/drivers/kvm/x86_emulate.c
+++ /dev/null
@@ -1,1913 +0,0 @@
-/******************************************************************************
- * x86_emulate.c
- *
- * Generic x86 (32-bit and 64-bit) instruction decoder and emulator.
- *
- * Copyright (c) 2005 Keir Fraser
- *
- * Linux coding style, mod r/m decoder, segment base fixes, real-mode
- * privileged instructions:
- *
- * Copyright (C) 2006 Qumranet
- *
- *   Avi Kivity <avi@qumranet.com>
- *   Yaniv Kamay <yaniv@qumranet.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- *
- * From: xen-unstable 10676:af9809f51f81a3c43f276f00c81a52ef558afda4
- */
-
-#ifndef __KERNEL__
-#include <stdio.h>
-#include <stdint.h>
-#include <public/xen.h>
-#define DPRINTF(_f, _a ...) printf(_f , ## _a)
-#else
-#include "kvm.h"
-#include "x86.h"
-#define DPRINTF(x...) do {} while (0)
-#endif
-#include "x86_emulate.h"
-#include <linux/module.h>
-
-/*
- * Opcode effective-address decode tables.
- * Note that we only emulate instructions that have at least one memory
- * operand (excluding implicit stack references). We assume that stack
- * references and instruction fetches will never occur in special memory
- * areas that require emulation. So, for example, 'mov <imm>,<reg>' need
- * not be handled.
- */
-
-/* Operand sizes: 8-bit operands or specified/overridden size. */
-#define ByteOp      (1<<0)	/* 8-bit operands. */
-/* Destination operand type. */
-#define ImplicitOps (1<<1)	/* Implicit in opcode. No generic decode. */
-#define DstReg      (2<<1)	/* Register operand. */
-#define DstMem      (3<<1)	/* Memory operand. */
-#define DstMask     (3<<1)
-/* Source operand type. */
-#define SrcNone     (0<<3)	/* No source operand. */
-#define SrcImplicit (0<<3)	/* Source operand is implicit in the opcode. */
-#define SrcReg      (1<<3)	/* Register operand. */
-#define SrcMem      (2<<3)	/* Memory operand. */
-#define SrcMem16    (3<<3)	/* Memory operand (16-bit). */
-#define SrcMem32    (4<<3)	/* Memory operand (32-bit). */
-#define SrcImm      (5<<3)	/* Immediate operand. */
-#define SrcImmByte  (6<<3)	/* 8-bit sign-extended immediate operand. */
-#define SrcMask     (7<<3)
-/* Generic ModRM decode. */
-#define ModRM       (1<<6)
-/* Destination is only written; never read. */
-#define Mov         (1<<7)
-#define BitOp       (1<<8)
-#define MemAbs      (1<<9)      /* Memory operand is absolute displacement */
-#define String      (1<<10)     /* String instruction (rep capable) */
-#define Stack       (1<<11)     /* Stack instruction (push/pop) */
-
-static u16 opcode_table[256] = {
-	/* 0x00 - 0x07 */
-	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
-	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
-	0, 0, 0, 0,
-	/* 0x08 - 0x0F */
-	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
-	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
-	0, 0, 0, 0,
-	/* 0x10 - 0x17 */
-	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
-	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
-	0, 0, 0, 0,
-	/* 0x18 - 0x1F */
-	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
-	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
-	0, 0, 0, 0,
-	/* 0x20 - 0x27 */
-	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
-	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
-	SrcImmByte, SrcImm, 0, 0,
-	/* 0x28 - 0x2F */
-	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
-	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
-	0, 0, 0, 0,
-	/* 0x30 - 0x37 */
-	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
-	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
-	0, 0, 0, 0,
-	/* 0x38 - 0x3F */
-	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
-	ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,
-	0, 0, 0, 0,
-	/* 0x40 - 0x47 */
-	DstReg, DstReg, DstReg, DstReg, DstReg, DstReg, DstReg, DstReg,
-	/* 0x48 - 0x4F */
-	DstReg, DstReg, DstReg, DstReg,	DstReg, DstReg, DstReg, DstReg,
-	/* 0x50 - 0x57 */
-	SrcReg | Stack, SrcReg | Stack, SrcReg | Stack, SrcReg | Stack,
-	SrcReg | Stack, SrcReg | Stack, SrcReg | Stack, SrcReg | Stack,
-	/* 0x58 - 0x5F */
-	DstReg | Stack, DstReg | Stack, DstReg | Stack, DstReg | Stack,
-	DstReg | Stack, DstReg | Stack, DstReg | Stack, DstReg | Stack,
-	/* 0x60 - 0x67 */
-	0, 0, 0, DstReg | SrcMem32 | ModRM | Mov /* movsxd (x86/64) */ ,
-	0, 0, 0, 0,
-	/* 0x68 - 0x6F */
-	0, 0, ImplicitOps | Mov | Stack, 0,
-	SrcNone  | ByteOp  | ImplicitOps, SrcNone  | ImplicitOps, /* insb, insw/insd */
-	SrcNone  | ByteOp  | ImplicitOps, SrcNone  | ImplicitOps, /* outsb, outsw/outsd */
-	/* 0x70 - 0x77 */
-	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
-	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
-	/* 0x78 - 0x7F */
-	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
-	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
-	/* 0x80 - 0x87 */
-	ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImm | ModRM,
-	ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM,
-	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
-	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
-	/* 0x88 - 0x8F */
-	ByteOp | DstMem | SrcReg | ModRM | Mov, DstMem | SrcReg | ModRM | Mov,
-	ByteOp | DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
-	0, ModRM | DstReg, 0, DstMem | SrcNone | ModRM | Mov | Stack,
-	/* 0x90 - 0x9F */
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, ImplicitOps | Stack, ImplicitOps | Stack, 0, 0,
-	/* 0xA0 - 0xA7 */
-	ByteOp | DstReg | SrcMem | Mov | MemAbs, DstReg | SrcMem | Mov | MemAbs,
-	ByteOp | DstMem | SrcReg | Mov | MemAbs, DstMem | SrcReg | Mov | MemAbs,
-	ByteOp | ImplicitOps | Mov | String, ImplicitOps | Mov | String,
-	ByteOp | ImplicitOps | String, ImplicitOps | String,
-	/* 0xA8 - 0xAF */
-	0, 0, ByteOp | ImplicitOps | Mov | String, ImplicitOps | Mov | String,
-	ByteOp | ImplicitOps | Mov | String, ImplicitOps | Mov | String,
-	ByteOp | ImplicitOps | String, ImplicitOps | String,
-	/* 0xB0 - 0xBF */
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0xC0 - 0xC7 */
-	ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM,
-	0, ImplicitOps | Stack, 0, 0,
-	ByteOp | DstMem | SrcImm | ModRM | Mov, DstMem | SrcImm | ModRM | Mov,
-	/* 0xC8 - 0xCF */
-	0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0xD0 - 0xD7 */
-	ByteOp | DstMem | SrcImplicit | ModRM, DstMem | SrcImplicit | ModRM,
-	ByteOp | DstMem | SrcImplicit | ModRM, DstMem | SrcImplicit | ModRM,
-	0, 0, 0, 0,
-	/* 0xD8 - 0xDF */
-	0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0xE0 - 0xE7 */
-	0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0xE8 - 0xEF */
-	ImplicitOps | Stack, SrcImm|ImplicitOps, 0, SrcImmByte|ImplicitOps,
-	0, 0, 0, 0,
-	/* 0xF0 - 0xF7 */
-	0, 0, 0, 0,
-	ImplicitOps, ImplicitOps,
-	ByteOp | DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM,
-	/* 0xF8 - 0xFF */
-	ImplicitOps, 0, ImplicitOps, ImplicitOps,
-	0, 0, ByteOp | DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM
-};
-
-static u16 twobyte_table[256] = {
-	/* 0x00 - 0x0F */
-	0, SrcMem | ModRM | DstReg, 0, 0, 0, 0, ImplicitOps, 0,
-	ImplicitOps, ImplicitOps, 0, 0, 0, ImplicitOps | ModRM, 0, 0,
-	/* 0x10 - 0x1F */
-	0, 0, 0, 0, 0, 0, 0, 0, ImplicitOps | ModRM, 0, 0, 0, 0, 0, 0, 0,
-	/* 0x20 - 0x2F */
-	ModRM | ImplicitOps, ModRM, ModRM | ImplicitOps, ModRM, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0x30 - 0x3F */
-	ImplicitOps, 0, ImplicitOps, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0x40 - 0x47 */
-	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
-	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
-	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
-	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
-	/* 0x48 - 0x4F */
-	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
-	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
-	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
-	DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
-	/* 0x50 - 0x5F */
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0x60 - 0x6F */
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0x70 - 0x7F */
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0x80 - 0x8F */
-	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
-	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
-	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
-	ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
-	/* 0x90 - 0x9F */
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0xA0 - 0xA7 */
-	0, 0, 0, DstMem | SrcReg | ModRM | BitOp, 0, 0, 0, 0,
-	/* 0xA8 - 0xAF */
-	0, 0, 0, DstMem | SrcReg | ModRM | BitOp, 0, 0, 0, 0,
-	/* 0xB0 - 0xB7 */
-	ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM, 0,
-	    DstMem | SrcReg | ModRM | BitOp,
-	0, 0, ByteOp | DstReg | SrcMem | ModRM | Mov,
-	    DstReg | SrcMem16 | ModRM | Mov,
-	/* 0xB8 - 0xBF */
-	0, 0, DstMem | SrcImmByte | ModRM, DstMem | SrcReg | ModRM | BitOp,
-	0, 0, ByteOp | DstReg | SrcMem | ModRM | Mov,
-	    DstReg | SrcMem16 | ModRM | Mov,
-	/* 0xC0 - 0xCF */
-	0, 0, 0, DstMem | SrcReg | ModRM | Mov, 0, 0, 0, ImplicitOps | ModRM,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0xD0 - 0xDF */
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0xE0 - 0xEF */
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	/* 0xF0 - 0xFF */
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-/* EFLAGS bit definitions. */
-#define EFLG_OF (1<<11)
-#define EFLG_DF (1<<10)
-#define EFLG_SF (1<<7)
-#define EFLG_ZF (1<<6)
-#define EFLG_AF (1<<4)
-#define EFLG_PF (1<<2)
-#define EFLG_CF (1<<0)
-
-/*
- * Instruction emulation:
- * Most instructions are emulated directly via a fragment of inline assembly
- * code. This allows us to save/restore EFLAGS and thus very easily pick up
- * any modified flags.
- */
-
-#if defined(CONFIG_X86_64)
-#define _LO32 "k"		/* force 32-bit operand */
-#define _STK  "%%rsp"		/* stack pointer */
-#elif defined(__i386__)
-#define _LO32 ""		/* force 32-bit operand */
-#define _STK  "%%esp"		/* stack pointer */
-#endif
-
-/*
- * These EFLAGS bits are restored from saved value during emulation, and
- * any changes are written back to the saved value after emulation.
- */
-#define EFLAGS_MASK (EFLG_OF|EFLG_SF|EFLG_ZF|EFLG_AF|EFLG_PF|EFLG_CF)
-
-/* Before executing instruction: restore necessary bits in EFLAGS. */
-#define _PRE_EFLAGS(_sav, _msk, _tmp)					\
-	/* EFLAGS = (_sav & _msk) | (EFLAGS & ~_msk); _sav &= ~_msk; */ \
-	"movl %"_sav",%"_LO32 _tmp"; "                                  \
-	"push %"_tmp"; "                                                \
-	"push %"_tmp"; "                                                \
-	"movl %"_msk",%"_LO32 _tmp"; "                                  \
-	"andl %"_LO32 _tmp",("_STK"); "                                 \
-	"pushf; "                                                       \
-	"notl %"_LO32 _tmp"; "                                          \
-	"andl %"_LO32 _tmp",("_STK"); "                                 \
-	"andl %"_LO32 _tmp","__stringify(BITS_PER_LONG/4)"("_STK"); "	\
-	"pop  %"_tmp"; "                                                \
-	"orl  %"_LO32 _tmp",("_STK"); "                                 \
-	"popf; "                                                        \
-	"pop  %"_sav"; "
-
-/* After executing instruction: write-back necessary bits in EFLAGS. */
-#define _POST_EFLAGS(_sav, _msk, _tmp) \
-	/* _sav |= EFLAGS & _msk; */		\
-	"pushf; "				\
-	"pop  %"_tmp"; "			\
-	"andl %"_msk",%"_LO32 _tmp"; "		\
-	"orl  %"_LO32 _tmp",%"_sav"; "
-
-/* Raw emulation: instruction has two explicit operands. */
-#define __emulate_2op_nobyte(_op,_src,_dst,_eflags,_wx,_wy,_lx,_ly,_qx,_qy) \
-	do { 								    \
-		unsigned long _tmp;					    \
-									    \
-		switch ((_dst).bytes) {					    \
-		case 2:							    \
-			__asm__ __volatile__ (				    \
-				_PRE_EFLAGS("0", "4", "2")		    \
-				_op"w %"_wx"3,%1; "			    \
-				_POST_EFLAGS("0", "4", "2")		    \
-				: "=m" (_eflags), "=m" ((_dst).val),        \
-				  "=&r" (_tmp)				    \
-				: _wy ((_src).val), "i" (EFLAGS_MASK));     \
-			break;						    \
-		case 4:							    \
-			__asm__ __volatile__ (				    \
-				_PRE_EFLAGS("0", "4", "2")		    \
-				_op"l %"_lx"3,%1; "			    \
-				_POST_EFLAGS("0", "4", "2")		    \
-				: "=m" (_eflags), "=m" ((_dst).val),	    \
-				  "=&r" (_tmp)				    \
-				: _ly ((_src).val), "i" (EFLAGS_MASK));     \
-			break;						    \
-		case 8:							    \
-			__emulate_2op_8byte(_op, _src, _dst,		    \
-					    _eflags, _qx, _qy);		    \
-			break;						    \
-		}							    \
-	} while (0)
-
-#define __emulate_2op(_op,_src,_dst,_eflags,_bx,_by,_wx,_wy,_lx,_ly,_qx,_qy) \
-	do {								     \
-		unsigned long _tmp;					     \
-		switch ((_dst).bytes) {				             \
-		case 1:							     \
-			__asm__ __volatile__ (				     \
-				_PRE_EFLAGS("0", "4", "2")		     \
-				_op"b %"_bx"3,%1; "			     \
-				_POST_EFLAGS("0", "4", "2")		     \
-				: "=m" (_eflags), "=m" ((_dst).val),	     \
-				  "=&r" (_tmp)				     \
-				: _by ((_src).val), "i" (EFLAGS_MASK));      \
-			break;						     \
-		default:						     \
-			__emulate_2op_nobyte(_op, _src, _dst, _eflags,	     \
-					     _wx, _wy, _lx, _ly, _qx, _qy);  \
-			break;						     \
-		}							     \
-	} while (0)
-
-/* Source operand is byte-sized and may be restricted to just %cl. */
-#define emulate_2op_SrcB(_op, _src, _dst, _eflags)                      \
-	__emulate_2op(_op, _src, _dst, _eflags,				\
-		      "b", "c", "b", "c", "b", "c", "b", "c")
-
-/* Source operand is byte, word, long or quad sized. */
-#define emulate_2op_SrcV(_op, _src, _dst, _eflags)                      \
-	__emulate_2op(_op, _src, _dst, _eflags,				\
-		      "b", "q", "w", "r", _LO32, "r", "", "r")
-
-/* Source operand is word, long or quad sized. */
-#define emulate_2op_SrcV_nobyte(_op, _src, _dst, _eflags)               \
-	__emulate_2op_nobyte(_op, _src, _dst, _eflags,			\
-			     "w", "r", _LO32, "r", "", "r")
-
-/* Instruction has only one explicit operand (no source operand). */
-#define emulate_1op(_op, _dst, _eflags)                                    \
-	do {								\
-		unsigned long _tmp;					\
-									\
-		switch ((_dst).bytes) {				        \
-		case 1:							\
-			__asm__ __volatile__ (				\
-				_PRE_EFLAGS("0", "3", "2")		\
-				_op"b %1; "				\
-				_POST_EFLAGS("0", "3", "2")		\
-				: "=m" (_eflags), "=m" ((_dst).val),	\
-				  "=&r" (_tmp)				\
-				: "i" (EFLAGS_MASK));			\
-			break;						\
-		case 2:							\
-			__asm__ __volatile__ (				\
-				_PRE_EFLAGS("0", "3", "2")		\
-				_op"w %1; "				\
-				_POST_EFLAGS("0", "3", "2")		\
-				: "=m" (_eflags), "=m" ((_dst).val),	\
-				  "=&r" (_tmp)				\
-				: "i" (EFLAGS_MASK));			\
-			break;						\
-		case 4:							\
-			__asm__ __volatile__ (				\
-				_PRE_EFLAGS("0", "3", "2")		\
-				_op"l %1; "				\
-				_POST_EFLAGS("0", "3", "2")		\
-				: "=m" (_eflags), "=m" ((_dst).val),	\
-				  "=&r" (_tmp)				\
-				: "i" (EFLAGS_MASK));			\
-			break;						\
-		case 8:							\
-			__emulate_1op_8byte(_op, _dst, _eflags);	\
-			break;						\
-		}							\
-	} while (0)
-
-/* Emulate an instruction with quadword operands (x86/64 only). */
-#if defined(CONFIG_X86_64)
-#define __emulate_2op_8byte(_op, _src, _dst, _eflags, _qx, _qy)           \
-	do {								  \
-		__asm__ __volatile__ (					  \
-			_PRE_EFLAGS("0", "4", "2")			  \
-			_op"q %"_qx"3,%1; "				  \
-			_POST_EFLAGS("0", "4", "2")			  \
-			: "=m" (_eflags), "=m" ((_dst).val), "=&r" (_tmp) \
-			: _qy ((_src).val), "i" (EFLAGS_MASK));		\
-	} while (0)
-
-#define __emulate_1op_8byte(_op, _dst, _eflags)                           \
-	do {								  \
-		__asm__ __volatile__ (					  \
-			_PRE_EFLAGS("0", "3", "2")			  \
-			_op"q %1; "					  \
-			_POST_EFLAGS("0", "3", "2")			  \
-			: "=m" (_eflags), "=m" ((_dst).val), "=&r" (_tmp) \
-			: "i" (EFLAGS_MASK));				  \
-	} while (0)
-
-#elif defined(__i386__)
-#define __emulate_2op_8byte(_op, _src, _dst, _eflags, _qx, _qy)
-#define __emulate_1op_8byte(_op, _dst, _eflags)
-#endif				/* __i386__ */
-
-/* Fetch next part of the instruction being emulated. */
-#define insn_fetch(_type, _size, _eip)                                  \
-({	unsigned long _x;						\
-	rc = do_insn_fetch(ctxt, ops, (_eip), &_x, (_size));		\
-	if (rc != 0)							\
-		goto done;						\
-	(_eip) += (_size);						\
-	(_type)_x;							\
-})
-
-/* Access/update address held in a register, based on addressing mode. */
-#define address_mask(reg)						\
-	((c->ad_bytes == sizeof(unsigned long)) ? 			\
-		(reg) :	((reg) & ((1UL << (c->ad_bytes << 3)) - 1)))
-#define register_address(base, reg)                                     \
-	((base) + address_mask(reg))
-#define register_address_increment(reg, inc)                            \
-	do {								\
-		/* signed type ensures sign extension to long */        \
-		int _inc = (inc);					\
-		if (c->ad_bytes == sizeof(unsigned long))		\
-			(reg) += _inc;					\
-		else							\
-			(reg) = ((reg) & 				\
-				 ~((1UL << (c->ad_bytes << 3)) - 1)) |	\
-				(((reg) + _inc) &			\
-				 ((1UL << (c->ad_bytes << 3)) - 1));	\
-	} while (0)
-
-#define JMP_REL(rel) 							\
-	do {								\
-		register_address_increment(c->eip, rel);		\
-	} while (0)
-
-static int do_fetch_insn_byte(struct x86_emulate_ctxt *ctxt,
-			      struct x86_emulate_ops *ops,
-			      unsigned long linear, u8 *dest)
-{
-	struct fetch_cache *fc = &ctxt->decode.fetch;
-	int rc;
-	int size;
-
-	if (linear < fc->start || linear >= fc->end) {
-		size = min(15UL, PAGE_SIZE - offset_in_page(linear));
-		rc = ops->read_std(linear, fc->data, size, ctxt->vcpu);
-		if (rc)
-			return rc;
-		fc->start = linear;
-		fc->end = linear + size;
-	}
-	*dest = fc->data[linear - fc->start];
-	return 0;
-}
-
-static int do_insn_fetch(struct x86_emulate_ctxt *ctxt,
-			 struct x86_emulate_ops *ops,
-			 unsigned long eip, void *dest, unsigned size)
-{
-	int rc = 0;
-
-	eip += ctxt->cs_base;
-	while (size--) {
-		rc = do_fetch_insn_byte(ctxt, ops, eip++, dest++);
-		if (rc)
-			return rc;
-	}
-	return 0;
-}
-
-/*
- * Given the 'reg' portion of a ModRM byte, and a register block, return a
- * pointer into the block that addresses the relevant register.
- * @highbyte_regs specifies whether to decode AH,CH,DH,BH.
- */
-static void *decode_register(u8 modrm_reg, unsigned long *regs,
-			     int highbyte_regs)
-{
-	void *p;
-
-	p = &regs[modrm_reg];
-	if (highbyte_regs && modrm_reg >= 4 && modrm_reg < 8)
-		p = (unsigned char *)&regs[modrm_reg & 3] + 1;
-	return p;
-}
-
-static int read_descriptor(struct x86_emulate_ctxt *ctxt,
-			   struct x86_emulate_ops *ops,
-			   void *ptr,
-			   u16 *size, unsigned long *address, int op_bytes)
-{
-	int rc;
-
-	if (op_bytes == 2)
-		op_bytes = 3;
-	*address = 0;
-	rc = ops->read_std((unsigned long)ptr, (unsigned long *)size, 2,
-			   ctxt->vcpu);
-	if (rc)
-		return rc;
-	rc = ops->read_std((unsigned long)ptr + 2, address, op_bytes,
-			   ctxt->vcpu);
-	return rc;
-}
-
-static int test_cc(unsigned int condition, unsigned int flags)
-{
-	int rc = 0;
-
-	switch ((condition & 15) >> 1) {
-	case 0: /* o */
-		rc |= (flags & EFLG_OF);
-		break;
-	case 1: /* b/c/nae */
-		rc |= (flags & EFLG_CF);
-		break;
-	case 2: /* z/e */
-		rc |= (flags & EFLG_ZF);
-		break;
-	case 3: /* be/na */
-		rc |= (flags & (EFLG_CF|EFLG_ZF));
-		break;
-	case 4: /* s */
-		rc |= (flags & EFLG_SF);
-		break;
-	case 5: /* p/pe */
-		rc |= (flags & EFLG_PF);
-		break;
-	case 7: /* le/ng */
-		rc |= (flags & EFLG_ZF);
-		/* fall through */
-	case 6: /* l/nge */
-		rc |= (!(flags & EFLG_SF) != !(flags & EFLG_OF));
-		break;
-	}
-
-	/* Odd condition identifiers (lsb == 1) have inverted sense. */
-	return (!!rc ^ (condition & 1));
-}
-
-static void decode_register_operand(struct operand *op,
-				    struct decode_cache *c,
-				    int inhibit_bytereg)
-{
-	unsigned reg = c->modrm_reg;
-	int highbyte_regs = c->rex_prefix == 0;
-
-	if (!(c->d & ModRM))
-		reg = (c->b & 7) | ((c->rex_prefix & 1) << 3);
-	op->type = OP_REG;
-	if ((c->d & ByteOp) && !inhibit_bytereg) {
-		op->ptr = decode_register(reg, c->regs, highbyte_regs);
-		op->val = *(u8 *)op->ptr;
-		op->bytes = 1;
-	} else {
-		op->ptr = decode_register(reg, c->regs, 0);
-		op->bytes = c->op_bytes;
-		switch (op->bytes) {
-		case 2:
-			op->val = *(u16 *)op->ptr;
-			break;
-		case 4:
-			op->val = *(u32 *)op->ptr;
-			break;
-		case 8:
-			op->val = *(u64 *) op->ptr;
-			break;
-		}
-	}
-	op->orig_val = op->val;
-}
-
-static int decode_modrm(struct x86_emulate_ctxt *ctxt,
-			struct x86_emulate_ops *ops)
-{
-	struct decode_cache *c = &ctxt->decode;
-	u8 sib;
-	int index_reg = 0, base_reg = 0, scale, rip_relative = 0;
-	int rc = 0;
-
-	if (c->rex_prefix) {
-		c->modrm_reg = (c->rex_prefix & 4) << 1;	/* REX.R */
-		index_reg = (c->rex_prefix & 2) << 2; /* REX.X */
-		c->modrm_rm = base_reg = (c->rex_prefix & 1) << 3; /* REG.B */
-	}
-
-	c->modrm = insn_fetch(u8, 1, c->eip);
-	c->modrm_mod |= (c->modrm & 0xc0) >> 6;
-	c->modrm_reg |= (c->modrm & 0x38) >> 3;
-	c->modrm_rm |= (c->modrm & 0x07);
-	c->modrm_ea = 0;
-	c->use_modrm_ea = 1;
-
-	if (c->modrm_mod == 3) {
-		c->modrm_val = *(unsigned long *)
-			decode_register(c->modrm_rm, c->regs, c->d & ByteOp);
-		return rc;
-	}
-
-	if (c->ad_bytes == 2) {
-		unsigned bx = c->regs[VCPU_REGS_RBX];
-		unsigned bp = c->regs[VCPU_REGS_RBP];
-		unsigned si = c->regs[VCPU_REGS_RSI];
-		unsigned di = c->regs[VCPU_REGS_RDI];
-
-		/* 16-bit ModR/M decode. */
-		switch (c->modrm_mod) {
-		case 0:
-			if (c->modrm_rm == 6)
-				c->modrm_ea += insn_fetch(u16, 2, c->eip);
-			break;
-		case 1:
-			c->modrm_ea += insn_fetch(s8, 1, c->eip);
-			break;
-		case 2:
-			c->modrm_ea += insn_fetch(u16, 2, c->eip);
-			break;
-		}
-		switch (c->modrm_rm) {
-		case 0:
-			c->modrm_ea += bx + si;
-			break;
-		case 1:
-			c->modrm_ea += bx + di;
-			break;
-		case 2:
-			c->modrm_ea += bp + si;
-			break;
-		case 3:
-			c->modrm_ea += bp + di;
-			break;
-		case 4:
-			c->modrm_ea += si;
-			break;
-		case 5:
-			c->modrm_ea += di;
-			break;
-		case 6:
-			if (c->modrm_mod != 0)
-				c->modrm_ea += bp;
-			break;
-		case 7:
-			c->modrm_ea += bx;
-			break;
-		}
-		if (c->modrm_rm == 2 || c->modrm_rm == 3 ||
-		    (c->modrm_rm == 6 && c->modrm_mod != 0))
-			if (!c->override_base)
-				c->override_base = &ctxt->ss_base;
-		c->modrm_ea = (u16)c->modrm_ea;
-	} else {
-		/* 32/64-bit ModR/M decode. */
-		switch (c->modrm_rm) {
-		case 4:
-		case 12:
-			sib = insn_fetch(u8, 1, c->eip);
-			index_reg |= (sib >> 3) & 7;
-			base_reg |= sib & 7;
-			scale = sib >> 6;
-
-			switch (base_reg) {
-			case 5:
-				if (c->modrm_mod != 0)
-					c->modrm_ea += c->regs[base_reg];
-				else
-					c->modrm_ea +=
-						insn_fetch(s32, 4, c->eip);
-				break;
-			default:
-				c->modrm_ea += c->regs[base_reg];
-			}
-			switch (index_reg) {
-			case 4:
-				break;
-			default:
-				c->modrm_ea += c->regs[index_reg] << scale;
-			}
-			break;
-		case 5:
-			if (c->modrm_mod != 0)
-				c->modrm_ea += c->regs[c->modrm_rm];
-			else if (ctxt->mode == X86EMUL_MODE_PROT64)
-				rip_relative = 1;
-			break;
-		default:
-			c->modrm_ea += c->regs[c->modrm_rm];
-			break;
-		}
-		switch (c->modrm_mod) {
-		case 0:
-			if (c->modrm_rm == 5)
-				c->modrm_ea += insn_fetch(s32, 4, c->eip);
-			break;
-		case 1:
-			c->modrm_ea += insn_fetch(s8, 1, c->eip);
-			break;
-		case 2:
-			c->modrm_ea += insn_fetch(s32, 4, c->eip);
-			break;
-		}
-	}
-	if (rip_relative) {
-		c->modrm_ea += c->eip;
-		switch (c->d & SrcMask) {
-		case SrcImmByte:
-			c->modrm_ea += 1;
-			break;
-		case SrcImm:
-			if (c->d & ByteOp)
-				c->modrm_ea += 1;
-			else
-				if (c->op_bytes == 8)
-					c->modrm_ea += 4;
-				else
-					c->modrm_ea += c->op_bytes;
-		}
-	}
-done:
-	return rc;
-}
-
-static int decode_abs(struct x86_emulate_ctxt *ctxt,
-		      struct x86_emulate_ops *ops)
-{
-	struct decode_cache *c = &ctxt->decode;
-	int rc = 0;
-
-	switch (c->ad_bytes) {
-	case 2:
-		c->modrm_ea = insn_fetch(u16, 2, c->eip);
-		break;
-	case 4:
-		c->modrm_ea = insn_fetch(u32, 4, c->eip);
-		break;
-	case 8:
-		c->modrm_ea = insn_fetch(u64, 8, c->eip);
-		break;
-	}
-done:
-	return rc;
-}
-
-int
-x86_decode_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
-{
-	struct decode_cache *c = &ctxt->decode;
-	int rc = 0;
-	int mode = ctxt->mode;
-	int def_op_bytes, def_ad_bytes;
-
-	/* Shadow copy of register state. Committed on successful emulation. */
-
-	memset(c, 0, sizeof(struct decode_cache));
-	c->eip = ctxt->vcpu->arch.rip;
-	memcpy(c->regs, ctxt->vcpu->arch.regs, sizeof c->regs);
-
-	switch (mode) {
-	case X86EMUL_MODE_REAL:
-	case X86EMUL_MODE_PROT16:
-		def_op_bytes = def_ad_bytes = 2;
-		break;
-	case X86EMUL_MODE_PROT32:
-		def_op_bytes = def_ad_bytes = 4;
-		break;
-#ifdef CONFIG_X86_64
-	case X86EMUL_MODE_PROT64:
-		def_op_bytes = 4;
-		def_ad_bytes = 8;
-		break;
-#endif
-	default:
-		return -1;
-	}
-
-	c->op_bytes = def_op_bytes;
-	c->ad_bytes = def_ad_bytes;
-
-	/* Legacy prefixes. */
-	for (;;) {
-		switch (c->b = insn_fetch(u8, 1, c->eip)) {
-		case 0x66:	/* operand-size override */
-			/* switch between 2/4 bytes */
-			c->op_bytes = def_op_bytes ^ 6;
-			break;
-		case 0x67:	/* address-size override */
-			if (mode == X86EMUL_MODE_PROT64)
-				/* switch between 4/8 bytes */
-				c->ad_bytes = def_ad_bytes ^ 12;
-			else
-				/* switch between 2/4 bytes */
-				c->ad_bytes = def_ad_bytes ^ 6;
-			break;
-		case 0x2e:	/* CS override */
-			c->override_base = &ctxt->cs_base;
-			break;
-		case 0x3e:	/* DS override */
-			c->override_base = &ctxt->ds_base;
-			break;
-		case 0x26:	/* ES override */
-			c->override_base = &ctxt->es_base;
-			break;
-		case 0x64:	/* FS override */
-			c->override_base = &ctxt->fs_base;
-			break;
-		case 0x65:	/* GS override */
-			c->override_base = &ctxt->gs_base;
-			break;
-		case 0x36:	/* SS override */
-			c->override_base = &ctxt->ss_base;
-			break;
-		case 0x40 ... 0x4f: /* REX */
-			if (mode != X86EMUL_MODE_PROT64)
-				goto done_prefixes;
-			c->rex_prefix = c->b;
-			continue;
-		case 0xf0:	/* LOCK */
-			c->lock_prefix = 1;
-			break;
-		case 0xf2:	/* REPNE/REPNZ */
-			c->rep_prefix = REPNE_PREFIX;
-			break;
-		case 0xf3:	/* REP/REPE/REPZ */
-			c->rep_prefix = REPE_PREFIX;
-			break;
-		default:
-			goto done_prefixes;
-		}
-
-		/* Any legacy prefix after a REX prefix nullifies its effect. */
-
-		c->rex_prefix = 0;
-	}
-
-done_prefixes:
-
-	/* REX prefix. */
-	if (c->rex_prefix)
-		if (c->rex_prefix & 8)
-			c->op_bytes = 8;	/* REX.W */
-
-	/* Opcode byte(s). */
-	c->d = opcode_table[c->b];
-	if (c->d == 0) {
-		/* Two-byte opcode? */
-		if (c->b == 0x0f) {
-			c->twobyte = 1;
-			c->b = insn_fetch(u8, 1, c->eip);
-			c->d = twobyte_table[c->b];
-		}
-
-		/* Unrecognised? */
-		if (c->d == 0) {
-			DPRINTF("Cannot emulate %02x\n", c->b);
-			return -1;
-		}
-	}
-
-	if (mode == X86EMUL_MODE_PROT64 && (c->d & Stack))
-		c->op_bytes = 8;
-
-	/* ModRM and SIB bytes. */
-	if (c->d & ModRM)
-		rc = decode_modrm(ctxt, ops);
-	else if (c->d & MemAbs)
-		rc = decode_abs(ctxt, ops);
-	if (rc)
-		goto done;
-
-	if (!c->override_base)
-		c->override_base = &ctxt->ds_base;
-	if (mode == X86EMUL_MODE_PROT64 &&
-	    c->override_base != &ctxt->fs_base &&
-	    c->override_base != &ctxt->gs_base)
-		c->override_base = NULL;
-
-	if (c->override_base)
-		c->modrm_ea += *c->override_base;
-
-	if (c->ad_bytes != 8)
-		c->modrm_ea = (u32)c->modrm_ea;
-	/*
-	 * Decode and fetch the source operand: register, memory
-	 * or immediate.
-	 */
-	switch (c->d & SrcMask) {
-	case SrcNone:
-		break;
-	case SrcReg:
-		decode_register_operand(&c->src, c, 0);
-		break;
-	case SrcMem16:
-		c->src.bytes = 2;
-		goto srcmem_common;
-	case SrcMem32:
-		c->src.bytes = 4;
-		goto srcmem_common;
-	case SrcMem:
-		c->src.bytes = (c->d & ByteOp) ? 1 :
-							   c->op_bytes;
-		/* Don't fetch the address for invlpg: it could be unmapped. */
-		if (c->twobyte && c->b == 0x01 && c->modrm_reg == 7)
-			break;
-	srcmem_common:
-		/*
-		 * For instructions with a ModR/M byte, switch to register
-		 * access if Mod = 3.
-		 */
-		if ((c->d & ModRM) && c->modrm_mod == 3) {
-			c->src.type = OP_REG;
-			break;
-		}
-		c->src.type = OP_MEM;
-		break;
-	case SrcImm:
-		c->src.type = OP_IMM;
-		c->src.ptr = (unsigned long *)c->eip;
-		c->src.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
-		if (c->src.bytes == 8)
-			c->src.bytes = 4;
-		/* NB. Immediates are sign-extended as necessary. */
-		switch (c->src.bytes) {
-		case 1:
-			c->src.val = insn_fetch(s8, 1, c->eip);
-			break;
-		case 2:
-			c->src.val = insn_fetch(s16, 2, c->eip);
-			break;
-		case 4:
-			c->src.val = insn_fetch(s32, 4, c->eip);
-			break;
-		}
-		break;
-	case SrcImmByte:
-		c->src.type = OP_IMM;
-		c->src.ptr = (unsigned long *)c->eip;
-		c->src.bytes = 1;
-		c->src.val = insn_fetch(s8, 1, c->eip);
-		break;
-	}
-
-	/* Decode and fetch the destination operand: register or memory. */
-	switch (c->d & DstMask) {
-	case ImplicitOps:
-		/* Special instructions do their own operand decoding. */
-		return 0;
-	case DstReg:
-		decode_register_operand(&c->dst, c,
-			 c->twobyte && (c->b == 0xb6 || c->b == 0xb7));
-		break;
-	case DstMem:
-		if ((c->d & ModRM) && c->modrm_mod == 3) {
-			c->dst.type = OP_REG;
-			break;
-		}
-		c->dst.type = OP_MEM;
-		break;
-	}
-
-done:
-	return (rc == X86EMUL_UNHANDLEABLE) ? -1 : 0;
-}
-
-static inline void emulate_push(struct x86_emulate_ctxt *ctxt)
-{
-	struct decode_cache *c = &ctxt->decode;
-
-	c->dst.type  = OP_MEM;
-	c->dst.bytes = c->op_bytes;
-	c->dst.val = c->src.val;
-	register_address_increment(c->regs[VCPU_REGS_RSP], -c->op_bytes);
-	c->dst.ptr = (void *) register_address(ctxt->ss_base,
-					       c->regs[VCPU_REGS_RSP]);
-}
-
-static inline int emulate_grp1a(struct x86_emulate_ctxt *ctxt,
-				struct x86_emulate_ops *ops)
-{
-	struct decode_cache *c = &ctxt->decode;
-	int rc;
-
-	rc = ops->read_std(register_address(ctxt->ss_base,
-					    c->regs[VCPU_REGS_RSP]),
-			   &c->dst.val, c->dst.bytes, ctxt->vcpu);
-	if (rc != 0)
-		return rc;
-
-	register_address_increment(c->regs[VCPU_REGS_RSP], c->dst.bytes);
-
-	return 0;
-}
-
-static inline void emulate_grp2(struct x86_emulate_ctxt *ctxt)
-{
-	struct decode_cache *c = &ctxt->decode;
-	switch (c->modrm_reg) {
-	case 0:	/* rol */
-		emulate_2op_SrcB("rol", c->src, c->dst, ctxt->eflags);
-		break;
-	case 1:	/* ror */
-		emulate_2op_SrcB("ror", c->src, c->dst, ctxt->eflags);
-		break;
-	case 2:	/* rcl */
-		emulate_2op_SrcB("rcl", c->src, c->dst, ctxt->eflags);
-		break;
-	case 3:	/* rcr */
-		emulate_2op_SrcB("rcr", c->src, c->dst, ctxt->eflags);
-		break;
-	case 4:	/* sal/shl */
-	case 6:	/* sal/shl */
-		emulate_2op_SrcB("sal", c->src, c->dst, ctxt->eflags);
-		break;
-	case 5:	/* shr */
-		emulate_2op_SrcB("shr", c->src, c->dst, ctxt->eflags);
-		break;
-	case 7:	/* sar */
-		emulate_2op_SrcB("sar", c->src, c->dst, ctxt->eflags);
-		break;
-	}
-}
-
-static inline int emulate_grp3(struct x86_emulate_ctxt *ctxt,
-			       struct x86_emulate_ops *ops)
-{
-	struct decode_cache *c = &ctxt->decode;
-	int rc = 0;
-
-	switch (c->modrm_reg) {
-	case 0 ... 1:	/* test */
-		/*
-		 * Special case in Grp3: test has an immediate
-		 * source operand.
-		 */
-		c->src.type = OP_IMM;
-		c->src.ptr = (unsigned long *)c->eip;
-		c->src.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
-		if (c->src.bytes == 8)
-			c->src.bytes = 4;
-		switch (c->src.bytes) {
-		case 1:
-			c->src.val = insn_fetch(s8, 1, c->eip);
-			break;
-		case 2:
-			c->src.val = insn_fetch(s16, 2, c->eip);
-			break;
-		case 4:
-			c->src.val = insn_fetch(s32, 4, c->eip);
-			break;
-		}
-		emulate_2op_SrcV("test", c->src, c->dst, ctxt->eflags);
-		break;
-	case 2:	/* not */
-		c->dst.val = ~c->dst.val;
-		break;
-	case 3:	/* neg */
-		emulate_1op("neg", c->dst, ctxt->eflags);
-		break;
-	default:
-		DPRINTF("Cannot emulate %02x\n", c->b);
-		rc = X86EMUL_UNHANDLEABLE;
-		break;
-	}
-done:
-	return rc;
-}
-
-static inline int emulate_grp45(struct x86_emulate_ctxt *ctxt,
-			       struct x86_emulate_ops *ops)
-{
-	struct decode_cache *c = &ctxt->decode;
-	int rc;
-
-	switch (c->modrm_reg) {
-	case 0:	/* inc */
-		emulate_1op("inc", c->dst, ctxt->eflags);
-		break;
-	case 1:	/* dec */
-		emulate_1op("dec", c->dst, ctxt->eflags);
-		break;
-	case 4: /* jmp abs */
-		if (c->b == 0xff)
-			c->eip = c->dst.val;
-		else {
-			DPRINTF("Cannot emulate %02x\n", c->b);
-			return X86EMUL_UNHANDLEABLE;
-		}
-		break;
-	case 6:	/* push */
-
-		/* 64-bit mode: PUSH always pushes a 64-bit operand. */
-
-		if (ctxt->mode == X86EMUL_MODE_PROT64) {
-			c->dst.bytes = 8;
-			rc = ops->read_std((unsigned long)c->dst.ptr,
-					   &c->dst.val, 8, ctxt->vcpu);
-			if (rc != 0)
-				return rc;
-		}
-		register_address_increment(c->regs[VCPU_REGS_RSP],
-					   -c->dst.bytes);
-		rc = ops->write_emulated(register_address(ctxt->ss_base,
-				    c->regs[VCPU_REGS_RSP]), &c->dst.val,
-				    c->dst.bytes, ctxt->vcpu);
-		if (rc != 0)
-			return rc;
-		c->dst.type = OP_NONE;
-		break;
-	default:
-		DPRINTF("Cannot emulate %02x\n", c->b);
-		return X86EMUL_UNHANDLEABLE;
-	}
-	return 0;
-}
-
-static inline int emulate_grp9(struct x86_emulate_ctxt *ctxt,
-			       struct x86_emulate_ops *ops,
-			       unsigned long memop)
-{
-	struct decode_cache *c = &ctxt->decode;
-	u64 old, new;
-	int rc;
-
-	rc = ops->read_emulated(memop, &old, 8, ctxt->vcpu);
-	if (rc != 0)
-		return rc;
-
-	if (((u32) (old >> 0) != (u32) c->regs[VCPU_REGS_RAX]) ||
-	    ((u32) (old >> 32) != (u32) c->regs[VCPU_REGS_RDX])) {
-
-		c->regs[VCPU_REGS_RAX] = (u32) (old >> 0);
-		c->regs[VCPU_REGS_RDX] = (u32) (old >> 32);
-		ctxt->eflags &= ~EFLG_ZF;
-
-	} else {
-		new = ((u64)c->regs[VCPU_REGS_RCX] << 32) |
-		       (u32) c->regs[VCPU_REGS_RBX];
-
-		rc = ops->cmpxchg_emulated(memop, &old, &new, 8, ctxt->vcpu);
-		if (rc != 0)
-			return rc;
-		ctxt->eflags |= EFLG_ZF;
-	}
-	return 0;
-}
-
-static inline int writeback(struct x86_emulate_ctxt *ctxt,
-			    struct x86_emulate_ops *ops)
-{
-	int rc;
-	struct decode_cache *c = &ctxt->decode;
-
-	switch (c->dst.type) {
-	case OP_REG:
-		/* The 4-byte case *is* correct:
-		 * in 64-bit mode we zero-extend.
-		 */
-		switch (c->dst.bytes) {
-		case 1:
-			*(u8 *)c->dst.ptr = (u8)c->dst.val;
-			break;
-		case 2:
-			*(u16 *)c->dst.ptr = (u16)c->dst.val;
-			break;
-		case 4:
-			*c->dst.ptr = (u32)c->dst.val;
-			break;	/* 64b: zero-ext */
-		case 8:
-			*c->dst.ptr = c->dst.val;
-			break;
-		}
-		break;
-	case OP_MEM:
-		if (c->lock_prefix)
-			rc = ops->cmpxchg_emulated(
-					(unsigned long)c->dst.ptr,
-					&c->dst.orig_val,
-					&c->dst.val,
-					c->dst.bytes,
-					ctxt->vcpu);
-		else
-			rc = ops->write_emulated(
-					(unsigned long)c->dst.ptr,
-					&c->dst.val,
-					c->dst.bytes,
-					ctxt->vcpu);
-		if (rc != 0)
-			return rc;
-		break;
-	case OP_NONE:
-		/* no writeback */
-		break;
-	default:
-		break;
-	}
-	return 0;
-}
-
-int
-x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
-{
-	unsigned long memop = 0;
-	u64 msr_data;
-	unsigned long saved_eip = 0;
-	struct decode_cache *c = &ctxt->decode;
-	int rc = 0;
-
-	/* Shadow copy of register state. Committed on successful emulation.
-	 * NOTE: we can copy them from vcpu as x86_decode_insn() doesn't
-	 * modify them.
-	 */
-
-	memcpy(c->regs, ctxt->vcpu->arch.regs, sizeof c->regs);
-	saved_eip = c->eip;
-
-	if (((c->d & ModRM) && (c->modrm_mod != 3)) || (c->d & MemAbs))
-		memop = c->modrm_ea;
-
-	if (c->rep_prefix && (c->d & String)) {
-		/* All REP prefixes have the same first termination condition */
-		if (c->regs[VCPU_REGS_RCX] == 0) {
-			ctxt->vcpu->arch.rip = c->eip;
-			goto done;
-		}
-		/* The second termination condition only applies for REPE
-		 * and REPNE. Test if the repeat string operation prefix is
-		 * REPE/REPZ or REPNE/REPNZ and if it's the case it tests the
-		 * corresponding termination condition according to:
-		 * 	- if REPE/REPZ and ZF = 0 then done
-		 * 	- if REPNE/REPNZ and ZF = 1 then done
-		 */
-		if ((c->b == 0xa6) || (c->b == 0xa7) ||
-				(c->b == 0xae) || (c->b == 0xaf)) {
-			if ((c->rep_prefix == REPE_PREFIX) &&
-				((ctxt->eflags & EFLG_ZF) == 0)) {
-					ctxt->vcpu->arch.rip = c->eip;
-					goto done;
-			}
-			if ((c->rep_prefix == REPNE_PREFIX) &&
-				((ctxt->eflags & EFLG_ZF) == EFLG_ZF)) {
-				ctxt->vcpu->arch.rip = c->eip;
-				goto done;
-			}
-		}
-		c->regs[VCPU_REGS_RCX]--;
-		c->eip = ctxt->vcpu->arch.rip;
-	}
-
-	if (c->src.type == OP_MEM) {
-		c->src.ptr = (unsigned long *)memop;
-		c->src.val = 0;
-		rc = ops->read_emulated((unsigned long)c->src.ptr,
-					&c->src.val,
-					c->src.bytes,
-					ctxt->vcpu);
-		if (rc != 0)
-			goto done;
-		c->src.orig_val = c->src.val;
-	}
-
-	if ((c->d & DstMask) == ImplicitOps)
-		goto special_insn;
-
-
-	if (c->dst.type == OP_MEM) {
-		c->dst.ptr = (unsigned long *)memop;
-		c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
-		c->dst.val = 0;
-		if (c->d & BitOp) {
-			unsigned long mask = ~(c->dst.bytes * 8 - 1);
-
-			c->dst.ptr = (void *)c->dst.ptr +
-						   (c->src.val & mask) / 8;
-		}
-		if (!(c->d & Mov) &&
-				   /* optimisation - avoid slow emulated read */
-		    ((rc = ops->read_emulated((unsigned long)c->dst.ptr,
-					   &c->dst.val,
-					  c->dst.bytes, ctxt->vcpu)) != 0))
-			goto done;
-	}
-	c->dst.orig_val = c->dst.val;
-
-special_insn:
-
-	if (c->twobyte)
-		goto twobyte_insn;
-
-	switch (c->b) {
-	case 0x00 ... 0x05:
-	      add:		/* add */
-		emulate_2op_SrcV("add", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0x08 ... 0x0d:
-	      or:		/* or */
-		emulate_2op_SrcV("or", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0x10 ... 0x15:
-	      adc:		/* adc */
-		emulate_2op_SrcV("adc", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0x18 ... 0x1d:
-	      sbb:		/* sbb */
-		emulate_2op_SrcV("sbb", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0x20 ... 0x23:
-	      and:		/* and */
-		emulate_2op_SrcV("and", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0x24:              /* and al imm8 */
-		c->dst.type = OP_REG;
-		c->dst.ptr = &c->regs[VCPU_REGS_RAX];
-		c->dst.val = *(u8 *)c->dst.ptr;
-		c->dst.bytes = 1;
-		c->dst.orig_val = c->dst.val;
-		goto and;
-	case 0x25:              /* and ax imm16, or eax imm32 */
-		c->dst.type = OP_REG;
-		c->dst.bytes = c->op_bytes;
-		c->dst.ptr = &c->regs[VCPU_REGS_RAX];
-		if (c->op_bytes == 2)
-			c->dst.val = *(u16 *)c->dst.ptr;
-		else
-			c->dst.val = *(u32 *)c->dst.ptr;
-		c->dst.orig_val = c->dst.val;
-		goto and;
-	case 0x28 ... 0x2d:
-	      sub:		/* sub */
-		emulate_2op_SrcV("sub", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0x30 ... 0x35:
-	      xor:		/* xor */
-		emulate_2op_SrcV("xor", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0x38 ... 0x3d:
-	      cmp:		/* cmp */
-		emulate_2op_SrcV("cmp", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0x40 ... 0x47: /* inc r16/r32 */
-		emulate_1op("inc", c->dst, ctxt->eflags);
-		break;
-	case 0x48 ... 0x4f: /* dec r16/r32 */
-		emulate_1op("dec", c->dst, ctxt->eflags);
-		break;
-	case 0x50 ... 0x57:  /* push reg */
-		c->dst.type  = OP_MEM;
-		c->dst.bytes = c->op_bytes;
-		c->dst.val = c->src.val;
-		register_address_increment(c->regs[VCPU_REGS_RSP],
-					   -c->op_bytes);
-		c->dst.ptr = (void *) register_address(
-			ctxt->ss_base, c->regs[VCPU_REGS_RSP]);
-		break;
-	case 0x58 ... 0x5f: /* pop reg */
-	pop_instruction:
-		if ((rc = ops->read_std(register_address(ctxt->ss_base,
-			c->regs[VCPU_REGS_RSP]), c->dst.ptr,
-			c->op_bytes, ctxt->vcpu)) != 0)
-			goto done;
-
-		register_address_increment(c->regs[VCPU_REGS_RSP],
-					   c->op_bytes);
-		c->dst.type = OP_NONE;	/* Disable writeback. */
-		break;
-	case 0x63:		/* movsxd */
-		if (ctxt->mode != X86EMUL_MODE_PROT64)
-			goto cannot_emulate;
-		c->dst.val = (s32) c->src.val;
-		break;
-	case 0x6a: /* push imm8 */
-		c->src.val = 0L;
-		c->src.val = insn_fetch(s8, 1, c->eip);
-		emulate_push(ctxt);
-		break;
-	case 0x6c:		/* insb */
-	case 0x6d:		/* insw/insd */
-		 if (kvm_emulate_pio_string(ctxt->vcpu, NULL,
-				1,
-				(c->d & ByteOp) ? 1 : c->op_bytes,
-				c->rep_prefix ?
-				address_mask(c->regs[VCPU_REGS_RCX]) : 1,
-				(ctxt->eflags & EFLG_DF),
-				register_address(ctxt->es_base,
-						 c->regs[VCPU_REGS_RDI]),
-				c->rep_prefix,
-				c->regs[VCPU_REGS_RDX]) == 0) {
-			c->eip = saved_eip;
-			return -1;
-		}
-		return 0;
-	case 0x6e:		/* outsb */
-	case 0x6f:		/* outsw/outsd */
-		if (kvm_emulate_pio_string(ctxt->vcpu, NULL,
-				0,
-				(c->d & ByteOp) ? 1 : c->op_bytes,
-				c->rep_prefix ?
-				address_mask(c->regs[VCPU_REGS_RCX]) : 1,
-				(ctxt->eflags & EFLG_DF),
-				register_address(c->override_base ?
-							*c->override_base :
-							ctxt->ds_base,
-						 c->regs[VCPU_REGS_RSI]),
-				c->rep_prefix,
-				c->regs[VCPU_REGS_RDX]) == 0) {
-			c->eip = saved_eip;
-			return -1;
-		}
-		return 0;
-	case 0x70 ... 0x7f: /* jcc (short) */ {
-		int rel = insn_fetch(s8, 1, c->eip);
-
-		if (test_cc(c->b, ctxt->eflags))
-			JMP_REL(rel);
-		break;
-	}
-	case 0x80 ... 0x83:	/* Grp1 */
-		switch (c->modrm_reg) {
-		case 0:
-			goto add;
-		case 1:
-			goto or;
-		case 2:
-			goto adc;
-		case 3:
-			goto sbb;
-		case 4:
-			goto and;
-		case 5:
-			goto sub;
-		case 6:
-			goto xor;
-		case 7:
-			goto cmp;
-		}
-		break;
-	case 0x84 ... 0x85:
-		emulate_2op_SrcV("test", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0x86 ... 0x87:	/* xchg */
-		/* Write back the register source. */
-		switch (c->dst.bytes) {
-		case 1:
-			*(u8 *) c->src.ptr = (u8) c->dst.val;
-			break;
-		case 2:
-			*(u16 *) c->src.ptr = (u16) c->dst.val;
-			break;
-		case 4:
-			*c->src.ptr = (u32) c->dst.val;
-			break;	/* 64b reg: zero-extend */
-		case 8:
-			*c->src.ptr = c->dst.val;
-			break;
-		}
-		/*
-		 * Write back the memory destination with implicit LOCK
-		 * prefix.
-		 */
-		c->dst.val = c->src.val;
-		c->lock_prefix = 1;
-		break;
-	case 0x88 ... 0x8b:	/* mov */
-		goto mov;
-	case 0x8d: /* lea r16/r32, m */
-		c->dst.val = c->modrm_val;
-		break;
-	case 0x8f:		/* pop (sole member of Grp1a) */
-		rc = emulate_grp1a(ctxt, ops);
-		if (rc != 0)
-			goto done;
-		break;
-	case 0x9c: /* pushf */
-		c->src.val =  (unsigned long) ctxt->eflags;
-		emulate_push(ctxt);
-		break;
-	case 0x9d: /* popf */
-		c->dst.ptr = (unsigned long *) &ctxt->eflags;
-		goto pop_instruction;
-	case 0xa0 ... 0xa1:	/* mov */
-		c->dst.ptr = (unsigned long *)&c->regs[VCPU_REGS_RAX];
-		c->dst.val = c->src.val;
-		break;
-	case 0xa2 ... 0xa3:	/* mov */
-		c->dst.val = (unsigned long)c->regs[VCPU_REGS_RAX];
-		break;
-	case 0xa4 ... 0xa5:	/* movs */
-		c->dst.type = OP_MEM;
-		c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
-		c->dst.ptr = (unsigned long *)register_address(
-						   ctxt->es_base,
-						   c->regs[VCPU_REGS_RDI]);
-		if ((rc = ops->read_emulated(register_address(
-		      c->override_base ? *c->override_base :
-					ctxt->ds_base,
-					c->regs[VCPU_REGS_RSI]),
-					&c->dst.val,
-					c->dst.bytes, ctxt->vcpu)) != 0)
-			goto done;
-		register_address_increment(c->regs[VCPU_REGS_RSI],
-				       (ctxt->eflags & EFLG_DF) ? -c->dst.bytes
-							   : c->dst.bytes);
-		register_address_increment(c->regs[VCPU_REGS_RDI],
-				       (ctxt->eflags & EFLG_DF) ? -c->dst.bytes
-							   : c->dst.bytes);
-		break;
-	case 0xa6 ... 0xa7:	/* cmps */
-		c->src.type = OP_NONE; /* Disable writeback. */
-		c->src.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
-		c->src.ptr = (unsigned long *)register_address(
-				c->override_base ? *c->override_base :
-						   ctxt->ds_base,
-						   c->regs[VCPU_REGS_RSI]);
-		if ((rc = ops->read_emulated((unsigned long)c->src.ptr,
-						&c->src.val,
-						c->src.bytes,
-						ctxt->vcpu)) != 0)
-			goto done;
-
-		c->dst.type = OP_NONE; /* Disable writeback. */
-		c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
-		c->dst.ptr = (unsigned long *)register_address(
-						   ctxt->es_base,
-						   c->regs[VCPU_REGS_RDI]);
-		if ((rc = ops->read_emulated((unsigned long)c->dst.ptr,
-						&c->dst.val,
-						c->dst.bytes,
-						ctxt->vcpu)) != 0)
-			goto done;
-
-		DPRINTF("cmps: mem1=0x%p mem2=0x%p\n", c->src.ptr, c->dst.ptr);
-
-		emulate_2op_SrcV("cmp", c->src, c->dst, ctxt->eflags);
-
-		register_address_increment(c->regs[VCPU_REGS_RSI],
-				       (ctxt->eflags & EFLG_DF) ? -c->src.bytes
-								  : c->src.bytes);
-		register_address_increment(c->regs[VCPU_REGS_RDI],
-				       (ctxt->eflags & EFLG_DF) ? -c->dst.bytes
-								  : c->dst.bytes);
-
-		break;
-	case 0xaa ... 0xab:	/* stos */
-		c->dst.type = OP_MEM;
-		c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
-		c->dst.ptr = (unsigned long *)register_address(
-						   ctxt->es_base,
-						   c->regs[VCPU_REGS_RDI]);
-		c->dst.val = c->regs[VCPU_REGS_RAX];
-		register_address_increment(c->regs[VCPU_REGS_RDI],
-				       (ctxt->eflags & EFLG_DF) ? -c->dst.bytes
-							   : c->dst.bytes);
-		break;
-	case 0xac ... 0xad:	/* lods */
-		c->dst.type = OP_REG;
-		c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
-		c->dst.ptr = (unsigned long *)&c->regs[VCPU_REGS_RAX];
-		if ((rc = ops->read_emulated(register_address(
-				c->override_base ? *c->override_base :
-						   ctxt->ds_base,
-						 c->regs[VCPU_REGS_RSI]),
-						 &c->dst.val,
-						 c->dst.bytes,
-						 ctxt->vcpu)) != 0)
-			goto done;
-		register_address_increment(c->regs[VCPU_REGS_RSI],
-				       (ctxt->eflags & EFLG_DF) ? -c->dst.bytes
-							   : c->dst.bytes);
-		break;
-	case 0xae ... 0xaf:	/* scas */
-		DPRINTF("Urk! I don't handle SCAS.\n");
-		goto cannot_emulate;
-	case 0xc0 ... 0xc1:
-		emulate_grp2(ctxt);
-		break;
-	case 0xc3: /* ret */
-		c->dst.ptr = &c->eip;
-		goto pop_instruction;
-	case 0xc6 ... 0xc7:	/* mov (sole member of Grp11) */
-	mov:
-		c->dst.val = c->src.val;
-		break;
-	case 0xd0 ... 0xd1:	/* Grp2 */
-		c->src.val = 1;
-		emulate_grp2(ctxt);
-		break;
-	case 0xd2 ... 0xd3:	/* Grp2 */
-		c->src.val = c->regs[VCPU_REGS_RCX];
-		emulate_grp2(ctxt);
-		break;
-	case 0xe8: /* call (near) */ {
-		long int rel;
-		switch (c->op_bytes) {
-		case 2:
-			rel = insn_fetch(s16, 2, c->eip);
-			break;
-		case 4:
-			rel = insn_fetch(s32, 4, c->eip);
-			break;
-		default:
-			DPRINTF("Call: Invalid op_bytes\n");
-			goto cannot_emulate;
-		}
-		c->src.val = (unsigned long) c->eip;
-		JMP_REL(rel);
-		c->op_bytes = c->ad_bytes;
-		emulate_push(ctxt);
-		break;
-	}
-	case 0xe9: /* jmp rel */
-	case 0xeb: /* jmp rel short */
-		JMP_REL(c->src.val);
-		c->dst.type = OP_NONE; /* Disable writeback. */
-		break;
-	case 0xf4:              /* hlt */
-		ctxt->vcpu->arch.halt_request = 1;
-		goto done;
-	case 0xf5:	/* cmc */
-		/* complement carry flag from eflags reg */
-		ctxt->eflags ^= EFLG_CF;
-		c->dst.type = OP_NONE;	/* Disable writeback. */
-		break;
-	case 0xf6 ... 0xf7:	/* Grp3 */
-		rc = emulate_grp3(ctxt, ops);
-		if (rc != 0)
-			goto done;
-		break;
-	case 0xf8: /* clc */
-		ctxt->eflags &= ~EFLG_CF;
-		c->dst.type = OP_NONE;	/* Disable writeback. */
-		break;
-	case 0xfa: /* cli */
-		ctxt->eflags &= ~X86_EFLAGS_IF;
-		c->dst.type = OP_NONE;	/* Disable writeback. */
-		break;
-	case 0xfb: /* sti */
-		ctxt->eflags |= X86_EFLAGS_IF;
-		c->dst.type = OP_NONE;	/* Disable writeback. */
-		break;
-	case 0xfe ... 0xff:	/* Grp4/Grp5 */
-		rc = emulate_grp45(ctxt, ops);
-		if (rc != 0)
-			goto done;
-		break;
-	}
-
-writeback:
-	rc = writeback(ctxt, ops);
-	if (rc != 0)
-		goto done;
-
-	/* Commit shadow register state. */
-	memcpy(ctxt->vcpu->arch.regs, c->regs, sizeof c->regs);
-	ctxt->vcpu->arch.rip = c->eip;
-
-done:
-	if (rc == X86EMUL_UNHANDLEABLE) {
-		c->eip = saved_eip;
-		return -1;
-	}
-	return 0;
-
-twobyte_insn:
-	switch (c->b) {
-	case 0x01: /* lgdt, lidt, lmsw */
-		switch (c->modrm_reg) {
-			u16 size;
-			unsigned long address;
-
-		case 0: /* vmcall */
-			if (c->modrm_mod != 3 || c->modrm_rm != 1)
-				goto cannot_emulate;
-
-			rc = kvm_fix_hypercall(ctxt->vcpu);
-			if (rc)
-				goto done;
-
-			kvm_emulate_hypercall(ctxt->vcpu);
-			break;
-		case 2: /* lgdt */
-			rc = read_descriptor(ctxt, ops, c->src.ptr,
-					     &size, &address, c->op_bytes);
-			if (rc)
-				goto done;
-			realmode_lgdt(ctxt->vcpu, size, address);
-			break;
-		case 3: /* lidt/vmmcall */
-			if (c->modrm_mod == 3 && c->modrm_rm == 1) {
-				rc = kvm_fix_hypercall(ctxt->vcpu);
-				if (rc)
-					goto done;
-				kvm_emulate_hypercall(ctxt->vcpu);
-			} else {
-				rc = read_descriptor(ctxt, ops, c->src.ptr,
-						     &size, &address,
-						     c->op_bytes);
-				if (rc)
-					goto done;
-				realmode_lidt(ctxt->vcpu, size, address);
-			}
-			break;
-		case 4: /* smsw */
-			if (c->modrm_mod != 3)
-				goto cannot_emulate;
-			*(u16 *)&c->regs[c->modrm_rm]
-				= realmode_get_cr(ctxt->vcpu, 0);
-			break;
-		case 6: /* lmsw */
-			if (c->modrm_mod != 3)
-				goto cannot_emulate;
-			realmode_lmsw(ctxt->vcpu, (u16)c->modrm_val,
-						  &ctxt->eflags);
-			break;
-		case 7: /* invlpg*/
-			emulate_invlpg(ctxt->vcpu, memop);
-			break;
-		default:
-			goto cannot_emulate;
-		}
-		/* Disable writeback. */
-		c->dst.type = OP_NONE;
-		break;
-	case 0x06:
-		emulate_clts(ctxt->vcpu);
-		c->dst.type = OP_NONE;
-		break;
-	case 0x08:		/* invd */
-	case 0x09:		/* wbinvd */
-	case 0x0d:		/* GrpP (prefetch) */
-	case 0x18:		/* Grp16 (prefetch/nop) */
-		c->dst.type = OP_NONE;
-		break;
-	case 0x20: /* mov cr, reg */
-		if (c->modrm_mod != 3)
-			goto cannot_emulate;
-		c->regs[c->modrm_rm] =
-				realmode_get_cr(ctxt->vcpu, c->modrm_reg);
-		c->dst.type = OP_NONE;	/* no writeback */
-		break;
-	case 0x21: /* mov from dr to reg */
-		if (c->modrm_mod != 3)
-			goto cannot_emulate;
-		rc = emulator_get_dr(ctxt, c->modrm_reg, &c->regs[c->modrm_rm]);
-		if (rc)
-			goto cannot_emulate;
-		c->dst.type = OP_NONE;	/* no writeback */
-		break;
-	case 0x22: /* mov reg, cr */
-		if (c->modrm_mod != 3)
-			goto cannot_emulate;
-		realmode_set_cr(ctxt->vcpu,
-				c->modrm_reg, c->modrm_val, &ctxt->eflags);
-		c->dst.type = OP_NONE;
-		break;
-	case 0x23: /* mov from reg to dr */
-		if (c->modrm_mod != 3)
-			goto cannot_emulate;
-		rc = emulator_set_dr(ctxt, c->modrm_reg,
-				     c->regs[c->modrm_rm]);
-		if (rc)
-			goto cannot_emulate;
-		c->dst.type = OP_NONE;	/* no writeback */
-		break;
-	case 0x30:
-		/* wrmsr */
-		msr_data = (u32)c->regs[VCPU_REGS_RAX]
-			| ((u64)c->regs[VCPU_REGS_RDX] << 32);
-		rc = kvm_set_msr(ctxt->vcpu, c->regs[VCPU_REGS_RCX], msr_data);
-		if (rc) {
-			kvm_inject_gp(ctxt->vcpu, 0);
-			c->eip = ctxt->vcpu->arch.rip;
-		}
-		rc = X86EMUL_CONTINUE;
-		c->dst.type = OP_NONE;
-		break;
-	case 0x32:
-		/* rdmsr */
-		rc = kvm_get_msr(ctxt->vcpu, c->regs[VCPU_REGS_RCX], &msr_data);
-		if (rc) {
-			kvm_inject_gp(ctxt->vcpu, 0);
-			c->eip = ctxt->vcpu->arch.rip;
-		} else {
-			c->regs[VCPU_REGS_RAX] = (u32)msr_data;
-			c->regs[VCPU_REGS_RDX] = msr_data >> 32;
-		}
-		rc = X86EMUL_CONTINUE;
-		c->dst.type = OP_NONE;
-		break;
-	case 0x40 ... 0x4f:	/* cmov */
-		c->dst.val = c->dst.orig_val = c->src.val;
-		if (!test_cc(c->b, ctxt->eflags))
-			c->dst.type = OP_NONE; /* no writeback */
-		break;
-	case 0x80 ... 0x8f: /* jnz rel, etc*/ {
-		long int rel;
-
-		switch (c->op_bytes) {
-		case 2:
-			rel = insn_fetch(s16, 2, c->eip);
-			break;
-		case 4:
-			rel = insn_fetch(s32, 4, c->eip);
-			break;
-		case 8:
-			rel = insn_fetch(s64, 8, c->eip);
-			break;
-		default:
-			DPRINTF("jnz: Invalid op_bytes\n");
-			goto cannot_emulate;
-		}
-		if (test_cc(c->b, ctxt->eflags))
-			JMP_REL(rel);
-		c->dst.type = OP_NONE;
-		break;
-	}
-	case 0xa3:
-	      bt:		/* bt */
-		c->dst.type = OP_NONE;
-		/* only subword offset */
-		c->src.val &= (c->dst.bytes << 3) - 1;
-		emulate_2op_SrcV_nobyte("bt", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0xab:
-	      bts:		/* bts */
-		/* only subword offset */
-		c->src.val &= (c->dst.bytes << 3) - 1;
-		emulate_2op_SrcV_nobyte("bts", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0xb0 ... 0xb1:	/* cmpxchg */
-		/*
-		 * Save real source value, then compare EAX against
-		 * destination.
-		 */
-		c->src.orig_val = c->src.val;
-		c->src.val = c->regs[VCPU_REGS_RAX];
-		emulate_2op_SrcV("cmp", c->src, c->dst, ctxt->eflags);
-		if (ctxt->eflags & EFLG_ZF) {
-			/* Success: write back to memory. */
-			c->dst.val = c->src.orig_val;
-		} else {
-			/* Failure: write the value we saw to EAX. */
-			c->dst.type = OP_REG;
-			c->dst.ptr = (unsigned long *)&c->regs[VCPU_REGS_RAX];
-		}
-		break;
-	case 0xb3:
-	      btr:		/* btr */
-		/* only subword offset */
-		c->src.val &= (c->dst.bytes << 3) - 1;
-		emulate_2op_SrcV_nobyte("btr", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0xb6 ... 0xb7:	/* movzx */
-		c->dst.bytes = c->op_bytes;
-		c->dst.val = (c->d & ByteOp) ? (u8) c->src.val
-						       : (u16) c->src.val;
-		break;
-	case 0xba:		/* Grp8 */
-		switch (c->modrm_reg & 3) {
-		case 0:
-			goto bt;
-		case 1:
-			goto bts;
-		case 2:
-			goto btr;
-		case 3:
-			goto btc;
-		}
-		break;
-	case 0xbb:
-	      btc:		/* btc */
-		/* only subword offset */
-		c->src.val &= (c->dst.bytes << 3) - 1;
-		emulate_2op_SrcV_nobyte("btc", c->src, c->dst, ctxt->eflags);
-		break;
-	case 0xbe ... 0xbf:	/* movsx */
-		c->dst.bytes = c->op_bytes;
-		c->dst.val = (c->d & ByteOp) ? (s8) c->src.val :
-							(s16) c->src.val;
-		break;
-	case 0xc3:		/* movnti */
-		c->dst.bytes = c->op_bytes;
-		c->dst.val = (c->op_bytes == 4) ? (u32) c->src.val :
-							(u64) c->src.val;
-		break;
-	case 0xc7:		/* Grp9 (cmpxchg8b) */
-		rc = emulate_grp9(ctxt, ops, memop);
-		if (rc != 0)
-			goto done;
-		c->dst.type = OP_NONE;
-		break;
-	}
-	goto writeback;
-
-cannot_emulate:
-	DPRINTF("Cannot emulate %02x\n", c->b);
-	c->eip = saved_eip;
-	return -1;
-}
diff --git a/drivers/kvm/x86_emulate.h b/drivers/kvm/x86_emulate.h
deleted file mode 100644
index 7db91b9bdcd4..000000000000
--- a/drivers/kvm/x86_emulate.h
+++ /dev/null
@@ -1,186 +0,0 @@
-/******************************************************************************
- * x86_emulate.h
- *
- * Generic x86 (32-bit and 64-bit) instruction decoder and emulator.
- *
- * Copyright (c) 2005 Keir Fraser
- *
- * From: xen-unstable 10676:af9809f51f81a3c43f276f00c81a52ef558afda4
- */
-
-#ifndef __X86_EMULATE_H__
-#define __X86_EMULATE_H__
-
-struct x86_emulate_ctxt;
-
-/*
- * x86_emulate_ops:
- *
- * These operations represent the instruction emulator's interface to memory.
- * There are two categories of operation: those that act on ordinary memory
- * regions (*_std), and those that act on memory regions known to require
- * special treatment or emulation (*_emulated).
- *
- * The emulator assumes that an instruction accesses only one 'emulated memory'
- * location, that this location is the given linear faulting address (cr2), and
- * that this is one of the instruction's data operands. Instruction fetches and
- * stack operations are assumed never to access emulated memory. The emulator
- * automatically deduces which operand of a string-move operation is accessing
- * emulated memory, and assumes that the other operand accesses normal memory.
- *
- * NOTES:
- *  1. The emulator isn't very smart about emulated vs. standard memory.
- *     'Emulated memory' access addresses should be checked for sanity.
- *     'Normal memory' accesses may fault, and the caller must arrange to
- *     detect and handle reentrancy into the emulator via recursive faults.
- *     Accesses may be unaligned and may cross page boundaries.
- *  2. If the access fails (cannot emulate, or a standard access faults) then
- *     it is up to the memop to propagate the fault to the guest VM via
- *     some out-of-band mechanism, unknown to the emulator. The memop signals
- *     failure by returning X86EMUL_PROPAGATE_FAULT to the emulator, which will
- *     then immediately bail.
- *  3. Valid access sizes are 1, 2, 4 and 8 bytes. On x86/32 systems only
- *     cmpxchg8b_emulated need support 8-byte accesses.
- *  4. The emulator cannot handle 64-bit mode emulation on an x86/32 system.
- */
-/* Access completed successfully: continue emulation as normal. */
-#define X86EMUL_CONTINUE        0
-/* Access is unhandleable: bail from emulation and return error to caller. */
-#define X86EMUL_UNHANDLEABLE    1
-/* Terminate emulation but return success to the caller. */
-#define X86EMUL_PROPAGATE_FAULT 2 /* propagate a generated fault to guest */
-#define X86EMUL_RETRY_INSTR     2 /* retry the instruction for some reason */
-#define X86EMUL_CMPXCHG_FAILED  2 /* cmpxchg did not see expected value */
-struct x86_emulate_ops {
-	/*
-	 * read_std: Read bytes of standard (non-emulated/special) memory.
-	 *           Used for instruction fetch, stack operations, and others.
-	 *  @addr:  [IN ] Linear address from which to read.
-	 *  @val:   [OUT] Value read from memory, zero-extended to 'u_long'.
-	 *  @bytes: [IN ] Number of bytes to read from memory.
-	 */
-	int (*read_std)(unsigned long addr, void *val,
-			unsigned int bytes, struct kvm_vcpu *vcpu);
-
-	/*
-	 * read_emulated: Read bytes from emulated/special memory area.
-	 *  @addr:  [IN ] Linear address from which to read.
-	 *  @val:   [OUT] Value read from memory, zero-extended to 'u_long'.
-	 *  @bytes: [IN ] Number of bytes to read from memory.
-	 */
-	int (*read_emulated) (unsigned long addr,
-			      void *val,
-			      unsigned int bytes,
-			      struct kvm_vcpu *vcpu);
-
-	/*
-	 * write_emulated: Read bytes from emulated/special memory area.
-	 *  @addr:  [IN ] Linear address to which to write.
-	 *  @val:   [IN ] Value to write to memory (low-order bytes used as
-	 *                required).
-	 *  @bytes: [IN ] Number of bytes to write to memory.
-	 */
-	int (*write_emulated) (unsigned long addr,
-			       const void *val,
-			       unsigned int bytes,
-			       struct kvm_vcpu *vcpu);
-
-	/*
-	 * cmpxchg_emulated: Emulate an atomic (LOCKed) CMPXCHG operation on an
-	 *                   emulated/special memory area.
-	 *  @addr:  [IN ] Linear address to access.
-	 *  @old:   [IN ] Value expected to be current at @addr.
-	 *  @new:   [IN ] Value to write to @addr.
-	 *  @bytes: [IN ] Number of bytes to access using CMPXCHG.
-	 */
-	int (*cmpxchg_emulated) (unsigned long addr,
-				 const void *old,
-				 const void *new,
-				 unsigned int bytes,
-				 struct kvm_vcpu *vcpu);
-
-};
-
-/* Type, address-of, and value of an instruction's operand. */
-struct operand {
-	enum { OP_REG, OP_MEM, OP_IMM, OP_NONE } type;
-	unsigned int bytes;
-	unsigned long val, orig_val, *ptr;
-};
-
-struct fetch_cache {
-	u8 data[15];
-	unsigned long start;
-	unsigned long end;
-};
-
-struct decode_cache {
-	u8 twobyte;
-	u8 b;
-	u8 lock_prefix;
-	u8 rep_prefix;
-	u8 op_bytes;
-	u8 ad_bytes;
-	u8 rex_prefix;
-	struct operand src;
-	struct operand dst;
-	unsigned long *override_base;
-	unsigned int d;
-	unsigned long regs[NR_VCPU_REGS];
-	unsigned long eip;
-	/* modrm */
-	u8 modrm;
-	u8 modrm_mod;
-	u8 modrm_reg;
-	u8 modrm_rm;
-	u8 use_modrm_ea;
-	unsigned long modrm_ea;
-	unsigned long modrm_val;
-	struct fetch_cache fetch;
-};
-
-struct x86_emulate_ctxt {
-	/* Register state before/after emulation. */
-	struct kvm_vcpu *vcpu;
-
-	/* Linear faulting address (if emulating a page-faulting instruction). */
-	unsigned long eflags;
-
-	/* Emulated execution mode, represented by an X86EMUL_MODE value. */
-	int mode;
-
-	unsigned long cs_base;
-	unsigned long ds_base;
-	unsigned long es_base;
-	unsigned long ss_base;
-	unsigned long gs_base;
-	unsigned long fs_base;
-
-	/* decode cache */
-
-	struct decode_cache decode;
-};
-
-/* Repeat String Operation Prefix */
-#define REPE_PREFIX  1
-#define REPNE_PREFIX    2
-
-/* Execution mode, passed to the emulator. */
-#define X86EMUL_MODE_REAL     0	/* Real mode.             */
-#define X86EMUL_MODE_PROT16   2	/* 16-bit protected mode. */
-#define X86EMUL_MODE_PROT32   4	/* 32-bit protected mode. */
-#define X86EMUL_MODE_PROT64   8	/* 64-bit (long) mode.    */
-
-/* Host execution mode. */
-#if defined(__i386__)
-#define X86EMUL_MODE_HOST X86EMUL_MODE_PROT32
-#elif defined(CONFIG_X86_64)
-#define X86EMUL_MODE_HOST X86EMUL_MODE_PROT64
-#endif
-
-int x86_decode_insn(struct x86_emulate_ctxt *ctxt,
-		    struct x86_emulate_ops *ops);
-int x86_emulate_insn(struct x86_emulate_ctxt *ctxt,
-		     struct x86_emulate_ops *ops);
-
-#endif				/* __X86_EMULATE_H__ */
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
new file mode 100644
index 000000000000..28940e1a9713
--- /dev/null
+++ b/include/asm-x86/kvm_host.h
@@ -0,0 +1,601 @@
+#/*
+ * Kernel-based Virtual Machine driver for Linux
+ *
+ * This header defines architecture specific interfaces, x86 version
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef ASM_KVM_HOST_H
+#define ASM_KVM_HOST_H
+
+#include <linux/types.h>
+#include <linux/mm.h>
+
+#include <linux/kvm.h>
+#include <linux/kvm_para.h>
+#include <linux/kvm_types.h>
+
+#include <asm/desc.h>
+
+#define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1)
+#define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD))
+#define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS|0xFFFFFF0000000000ULL)
+
+#define KVM_GUEST_CR0_MASK \
+	(X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE \
+	 | X86_CR0_NW | X86_CR0_CD)
+#define KVM_VM_CR0_ALWAYS_ON \
+	(X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE | X86_CR0_TS \
+	 | X86_CR0_MP)
+#define KVM_GUEST_CR4_MASK \
+	(X86_CR4_VME | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE | X86_CR4_VMXE)
+#define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE)
+#define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE)
+
+#define INVALID_PAGE (~(hpa_t)0)
+#define UNMAPPED_GVA (~(gpa_t)0)
+
+#define DE_VECTOR 0
+#define UD_VECTOR 6
+#define NM_VECTOR 7
+#define DF_VECTOR 8
+#define TS_VECTOR 10
+#define NP_VECTOR 11
+#define SS_VECTOR 12
+#define GP_VECTOR 13
+#define PF_VECTOR 14
+
+#define SELECTOR_TI_MASK (1 << 2)
+#define SELECTOR_RPL_MASK 0x03
+
+#define IOPL_SHIFT 12
+
+#define KVM_ALIAS_SLOTS 4
+
+#define KVM_PERMILLE_MMU_PAGES 20
+#define KVM_MIN_ALLOC_MMU_PAGES 64
+#define KVM_NUM_MMU_PAGES 1024
+#define KVM_MIN_FREE_MMU_PAGES 5
+#define KVM_REFILL_PAGES 25
+#define KVM_MAX_CPUID_ENTRIES 40
+
+extern spinlock_t kvm_lock;
+extern struct list_head vm_list;
+
+struct kvm_vcpu;
+struct kvm;
+
+enum {
+	VCPU_REGS_RAX = 0,
+	VCPU_REGS_RCX = 1,
+	VCPU_REGS_RDX = 2,
+	VCPU_REGS_RBX = 3,
+	VCPU_REGS_RSP = 4,
+	VCPU_REGS_RBP = 5,
+	VCPU_REGS_RSI = 6,
+	VCPU_REGS_RDI = 7,
+#ifdef CONFIG_X86_64
+	VCPU_REGS_R8 = 8,
+	VCPU_REGS_R9 = 9,
+	VCPU_REGS_R10 = 10,
+	VCPU_REGS_R11 = 11,
+	VCPU_REGS_R12 = 12,
+	VCPU_REGS_R13 = 13,
+	VCPU_REGS_R14 = 14,
+	VCPU_REGS_R15 = 15,
+#endif
+	NR_VCPU_REGS
+};
+
+enum {
+	VCPU_SREG_CS,
+	VCPU_SREG_DS,
+	VCPU_SREG_ES,
+	VCPU_SREG_FS,
+	VCPU_SREG_GS,
+	VCPU_SREG_SS,
+	VCPU_SREG_TR,
+	VCPU_SREG_LDTR,
+};
+
+#include <asm/kvm_x86_emulate.h>
+
+#define KVM_NR_MEM_OBJS 40
+
+/*
+ * We don't want allocation failures within the mmu code, so we preallocate
+ * enough memory for a single page fault in a cache.
+ */
+struct kvm_mmu_memory_cache {
+	int nobjs;
+	void *objects[KVM_NR_MEM_OBJS];
+};
+
+#define NR_PTE_CHAIN_ENTRIES 5
+
+struct kvm_pte_chain {
+	u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES];
+	struct hlist_node link;
+};
+
+/*
+ * kvm_mmu_page_role, below, is defined as:
+ *
+ *   bits 0:3 - total guest paging levels (2-4, or zero for real mode)
+ *   bits 4:7 - page table level for this shadow (1-4)
+ *   bits 8:9 - page table quadrant for 2-level guests
+ *   bit   16 - "metaphysical" - gfn is not a real page (huge page/real mode)
+ *   bits 17:19 - common access permissions for all ptes in this shadow page
+ */
+union kvm_mmu_page_role {
+	unsigned word;
+	struct {
+		unsigned glevels : 4;
+		unsigned level : 4;
+		unsigned quadrant : 2;
+		unsigned pad_for_nice_hex_output : 6;
+		unsigned metaphysical : 1;
+		unsigned access : 3;
+	};
+};
+
+struct kvm_mmu_page {
+	struct list_head link;
+	struct hlist_node hash_link;
+
+	/*
+	 * The following two entries are used to key the shadow page in the
+	 * hash table.
+	 */
+	gfn_t gfn;
+	union kvm_mmu_page_role role;
+
+	u64 *spt;
+	/* hold the gfn of each spte inside spt */
+	gfn_t *gfns;
+	unsigned long slot_bitmap; /* One bit set per slot which has memory
+				    * in this shadow page.
+				    */
+	int multimapped;         /* More than one parent_pte? */
+	int root_count;          /* Currently serving as active root */
+	union {
+		u64 *parent_pte;               /* !multimapped */
+		struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
+	};
+};
+
+/*
+ * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
+ * 32-bit).  The kvm_mmu structure abstracts the details of the current mmu
+ * mode.
+ */
+struct kvm_mmu {
+	void (*new_cr3)(struct kvm_vcpu *vcpu);
+	int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err);
+	void (*free)(struct kvm_vcpu *vcpu);
+	gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva);
+	void (*prefetch_page)(struct kvm_vcpu *vcpu,
+			      struct kvm_mmu_page *page);
+	hpa_t root_hpa;
+	int root_level;
+	int shadow_root_level;
+
+	u64 *pae_root;
+};
+
+struct kvm_vcpu_arch {
+	u64 host_tsc;
+	int interrupt_window_open;
+	unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */
+	DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS);
+	unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */
+	unsigned long rip;      /* needs vcpu_load_rsp_rip() */
+
+	unsigned long cr0;
+	unsigned long cr2;
+	unsigned long cr3;
+	unsigned long cr4;
+	unsigned long cr8;
+	u64 pdptrs[4]; /* pae */
+	u64 shadow_efer;
+	u64 apic_base;
+	struct kvm_lapic *apic;    /* kernel irqchip context */
+#define VCPU_MP_STATE_RUNNABLE          0
+#define VCPU_MP_STATE_UNINITIALIZED     1
+#define VCPU_MP_STATE_INIT_RECEIVED     2
+#define VCPU_MP_STATE_SIPI_RECEIVED     3
+#define VCPU_MP_STATE_HALTED            4
+	int mp_state;
+	int sipi_vector;
+	u64 ia32_misc_enable_msr;
+
+	struct kvm_mmu mmu;
+
+	struct kvm_mmu_memory_cache mmu_pte_chain_cache;
+	struct kvm_mmu_memory_cache mmu_rmap_desc_cache;
+	struct kvm_mmu_memory_cache mmu_page_cache;
+	struct kvm_mmu_memory_cache mmu_page_header_cache;
+
+	gfn_t last_pt_write_gfn;
+	int   last_pt_write_count;
+	u64  *last_pte_updated;
+
+	struct i387_fxsave_struct host_fx_image;
+	struct i387_fxsave_struct guest_fx_image;
+
+	gva_t mmio_fault_cr2;
+	struct kvm_pio_request pio;
+	void *pio_data;
+
+	struct kvm_queued_exception {
+		bool pending;
+		bool has_error_code;
+		u8 nr;
+		u32 error_code;
+	} exception;
+
+	struct {
+		int active;
+		u8 save_iopl;
+		struct kvm_save_segment {
+			u16 selector;
+			unsigned long base;
+			u32 limit;
+			u32 ar;
+		} tr, es, ds, fs, gs;
+	} rmode;
+	int halt_request; /* real mode on Intel only */
+
+	int cpuid_nent;
+	struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES];
+	/* emulate context */
+
+	struct x86_emulate_ctxt emulate_ctxt;
+};
+
+struct kvm_mem_alias {
+	gfn_t base_gfn;
+	unsigned long npages;
+	gfn_t target_gfn;
+};
+
+struct kvm_arch{
+	int naliases;
+	struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS];
+
+	unsigned int n_free_mmu_pages;
+	unsigned int n_requested_mmu_pages;
+	unsigned int n_alloc_mmu_pages;
+	struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
+	/*
+	 * Hash table of struct kvm_mmu_page.
+	 */
+	struct list_head active_mmu_pages;
+	struct kvm_pic *vpic;
+	struct kvm_ioapic *vioapic;
+
+	int round_robin_prev_vcpu;
+	unsigned int tss_addr;
+	struct page *apic_access_page;
+};
+
+struct kvm_vm_stat {
+	u32 mmu_shadow_zapped;
+	u32 mmu_pte_write;
+	u32 mmu_pte_updated;
+	u32 mmu_pde_zapped;
+	u32 mmu_flooded;
+	u32 mmu_recycled;
+	u32 remote_tlb_flush;
+};
+
+struct kvm_vcpu_stat {
+	u32 pf_fixed;
+	u32 pf_guest;
+	u32 tlb_flush;
+	u32 invlpg;
+
+	u32 exits;
+	u32 io_exits;
+	u32 mmio_exits;
+	u32 signal_exits;
+	u32 irq_window_exits;
+	u32 halt_exits;
+	u32 halt_wakeup;
+	u32 request_irq_exits;
+	u32 irq_exits;
+	u32 host_state_reload;
+	u32 efer_reload;
+	u32 fpu_reload;
+	u32 insn_emulation;
+	u32 insn_emulation_fail;
+};
+
+struct descriptor_table {
+	u16 limit;
+	unsigned long base;
+} __attribute__((packed));
+
+struct kvm_x86_ops {
+	int (*cpu_has_kvm_support)(void);          /* __init */
+	int (*disabled_by_bios)(void);             /* __init */
+	void (*hardware_enable)(void *dummy);      /* __init */
+	void (*hardware_disable)(void *dummy);
+	void (*check_processor_compatibility)(void *rtn);
+	int (*hardware_setup)(void);               /* __init */
+	void (*hardware_unsetup)(void);            /* __exit */
+
+	/* Create, but do not attach this VCPU */
+	struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
+	void (*vcpu_free)(struct kvm_vcpu *vcpu);
+	int (*vcpu_reset)(struct kvm_vcpu *vcpu);
+
+	void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
+	void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
+	void (*vcpu_put)(struct kvm_vcpu *vcpu);
+	void (*vcpu_decache)(struct kvm_vcpu *vcpu);
+
+	int (*set_guest_debug)(struct kvm_vcpu *vcpu,
+			       struct kvm_debug_guest *dbg);
+	void (*guest_debug_pre)(struct kvm_vcpu *vcpu);
+	int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
+	int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
+	u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
+	void (*get_segment)(struct kvm_vcpu *vcpu,
+			    struct kvm_segment *var, int seg);
+	void (*set_segment)(struct kvm_vcpu *vcpu,
+			    struct kvm_segment *var, int seg);
+	void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
+	void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
+	void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
+	void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
+	void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
+	void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
+	void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
+	void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
+	void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
+	void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
+	unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr);
+	void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value,
+		       int *exception);
+	void (*cache_regs)(struct kvm_vcpu *vcpu);
+	void (*decache_regs)(struct kvm_vcpu *vcpu);
+	unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
+	void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
+
+	void (*tlb_flush)(struct kvm_vcpu *vcpu);
+
+	void (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
+	int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu);
+	void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
+	void (*patch_hypercall)(struct kvm_vcpu *vcpu,
+				unsigned char *hypercall_addr);
+	int (*get_irq)(struct kvm_vcpu *vcpu);
+	void (*set_irq)(struct kvm_vcpu *vcpu, int vec);
+	void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr,
+				bool has_error_code, u32 error_code);
+	bool (*exception_injected)(struct kvm_vcpu *vcpu);
+	void (*inject_pending_irq)(struct kvm_vcpu *vcpu);
+	void (*inject_pending_vectors)(struct kvm_vcpu *vcpu,
+				       struct kvm_run *run);
+
+	int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
+};
+
+extern struct kvm_x86_ops *kvm_x86_ops;
+
+int kvm_mmu_module_init(void);
+void kvm_mmu_module_exit(void);
+
+void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
+int kvm_mmu_create(struct kvm_vcpu *vcpu);
+int kvm_mmu_setup(struct kvm_vcpu *vcpu);
+void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte);
+
+int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
+void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
+void kvm_mmu_zap_all(struct kvm *kvm);
+unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
+void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
+
+enum emulation_result {
+	EMULATE_DONE,       /* no further processing */
+	EMULATE_DO_MMIO,      /* kvm_run filled with mmio request */
+	EMULATE_FAIL,         /* can't emulate this instruction */
+};
+
+int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run,
+			unsigned long cr2, u16 error_code, int no_decode);
+void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context);
+void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
+void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
+void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
+		   unsigned long *rflags);
+
+unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr);
+void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value,
+		     unsigned long *rflags);
+int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data);
+int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
+
+struct x86_emulate_ctxt;
+
+int kvm_emulate_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
+		     int size, unsigned port);
+int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
+			   int size, unsigned long count, int down,
+			    gva_t address, int rep, unsigned port);
+void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
+int kvm_emulate_halt(struct kvm_vcpu *vcpu);
+int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
+int emulate_clts(struct kvm_vcpu *vcpu);
+int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr,
+		    unsigned long *dest);
+int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
+		    unsigned long value);
+
+void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
+void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0);
+void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0);
+void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0);
+unsigned long get_cr8(struct kvm_vcpu *vcpu);
+void lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
+void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
+
+int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
+int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
+
+void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
+void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
+void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2,
+			   u32 error_code);
+
+void fx_init(struct kvm_vcpu *vcpu);
+
+int emulator_read_std(unsigned long addr,
+		      void *val,
+		      unsigned int bytes,
+		      struct kvm_vcpu *vcpu);
+int emulator_write_emulated(unsigned long addr,
+			    const void *val,
+			    unsigned int bytes,
+			    struct kvm_vcpu *vcpu);
+
+unsigned long segment_base(u16 selector);
+
+void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu);
+void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
+		       const u8 *new, int bytes);
+int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
+void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
+int kvm_mmu_load(struct kvm_vcpu *vcpu);
+void kvm_mmu_unload(struct kvm_vcpu *vcpu);
+
+int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
+
+int kvm_fix_hypercall(struct kvm_vcpu *vcpu);
+
+int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code);
+
+int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
+int complete_pio(struct kvm_vcpu *vcpu);
+
+static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
+{
+	struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
+
+	return (struct kvm_mmu_page *)page_private(page);
+}
+
+static inline u16 read_fs(void)
+{
+	u16 seg;
+	asm("mov %%fs, %0" : "=g"(seg));
+	return seg;
+}
+
+static inline u16 read_gs(void)
+{
+	u16 seg;
+	asm("mov %%gs, %0" : "=g"(seg));
+	return seg;
+}
+
+static inline u16 read_ldt(void)
+{
+	u16 ldt;
+	asm("sldt %0" : "=g"(ldt));
+	return ldt;
+}
+
+static inline void load_fs(u16 sel)
+{
+	asm("mov %0, %%fs" : : "rm"(sel));
+}
+
+static inline void load_gs(u16 sel)
+{
+	asm("mov %0, %%gs" : : "rm"(sel));
+}
+
+#ifndef load_ldt
+static inline void load_ldt(u16 sel)
+{
+	asm("lldt %0" : : "rm"(sel));
+}
+#endif
+
+static inline void get_idt(struct descriptor_table *table)
+{
+	asm("sidt %0" : "=m"(*table));
+}
+
+static inline void get_gdt(struct descriptor_table *table)
+{
+	asm("sgdt %0" : "=m"(*table));
+}
+
+static inline unsigned long read_tr_base(void)
+{
+	u16 tr;
+	asm("str %0" : "=g"(tr));
+	return segment_base(tr);
+}
+
+#ifdef CONFIG_X86_64
+static inline unsigned long read_msr(unsigned long msr)
+{
+	u64 value;
+
+	rdmsrl(msr, value);
+	return value;
+}
+#endif
+
+static inline void fx_save(struct i387_fxsave_struct *image)
+{
+	asm("fxsave (%0)":: "r" (image));
+}
+
+static inline void fx_restore(struct i387_fxsave_struct *image)
+{
+	asm("fxrstor (%0)":: "r" (image));
+}
+
+static inline void fpu_init(void)
+{
+	asm("finit");
+}
+
+static inline u32 get_rdx_init_val(void)
+{
+	return 0x600; /* P6 family */
+}
+
+static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
+{
+	kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
+}
+
+#define ASM_VMX_VMCLEAR_RAX       ".byte 0x66, 0x0f, 0xc7, 0x30"
+#define ASM_VMX_VMLAUNCH          ".byte 0x0f, 0x01, 0xc2"
+#define ASM_VMX_VMRESUME          ".byte 0x0f, 0x01, 0xc3"
+#define ASM_VMX_VMPTRLD_RAX       ".byte 0x0f, 0xc7, 0x30"
+#define ASM_VMX_VMREAD_RDX_RAX    ".byte 0x0f, 0x78, 0xd0"
+#define ASM_VMX_VMWRITE_RAX_RDX   ".byte 0x0f, 0x79, 0xd0"
+#define ASM_VMX_VMWRITE_RSP_RDX   ".byte 0x0f, 0x79, 0xd4"
+#define ASM_VMX_VMXOFF            ".byte 0x0f, 0x01, 0xc4"
+#define ASM_VMX_VMXON_RAX         ".byte 0xf3, 0x0f, 0xc7, 0x30"
+
+#define MSR_IA32_TIME_STAMP_COUNTER		0x010
+
+#define TSS_IOPB_BASE_OFFSET 0x66
+#define TSS_BASE_SIZE 0x68
+#define TSS_IOPB_SIZE (65536 / 8)
+#define TSS_REDIRECTION_SIZE (256 / 8)
+#define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
+
+#endif
diff --git a/include/asm-x86/kvm_x86_emulate.h b/include/asm-x86/kvm_x86_emulate.h
new file mode 100644
index 000000000000..7db91b9bdcd4
--- /dev/null
+++ b/include/asm-x86/kvm_x86_emulate.h
@@ -0,0 +1,186 @@
+/******************************************************************************
+ * x86_emulate.h
+ *
+ * Generic x86 (32-bit and 64-bit) instruction decoder and emulator.
+ *
+ * Copyright (c) 2005 Keir Fraser
+ *
+ * From: xen-unstable 10676:af9809f51f81a3c43f276f00c81a52ef558afda4
+ */
+
+#ifndef __X86_EMULATE_H__
+#define __X86_EMULATE_H__
+
+struct x86_emulate_ctxt;
+
+/*
+ * x86_emulate_ops:
+ *
+ * These operations represent the instruction emulator's interface to memory.
+ * There are two categories of operation: those that act on ordinary memory
+ * regions (*_std), and those that act on memory regions known to require
+ * special treatment or emulation (*_emulated).
+ *
+ * The emulator assumes that an instruction accesses only one 'emulated memory'
+ * location, that this location is the given linear faulting address (cr2), and
+ * that this is one of the instruction's data operands. Instruction fetches and
+ * stack operations are assumed never to access emulated memory. The emulator
+ * automatically deduces which operand of a string-move operation is accessing
+ * emulated memory, and assumes that the other operand accesses normal memory.
+ *
+ * NOTES:
+ *  1. The emulator isn't very smart about emulated vs. standard memory.
+ *     'Emulated memory' access addresses should be checked for sanity.
+ *     'Normal memory' accesses may fault, and the caller must arrange to
+ *     detect and handle reentrancy into the emulator via recursive faults.
+ *     Accesses may be unaligned and may cross page boundaries.
+ *  2. If the access fails (cannot emulate, or a standard access faults) then
+ *     it is up to the memop to propagate the fault to the guest VM via
+ *     some out-of-band mechanism, unknown to the emulator. The memop signals
+ *     failure by returning X86EMUL_PROPAGATE_FAULT to the emulator, which will
+ *     then immediately bail.
+ *  3. Valid access sizes are 1, 2, 4 and 8 bytes. On x86/32 systems only
+ *     cmpxchg8b_emulated need support 8-byte accesses.
+ *  4. The emulator cannot handle 64-bit mode emulation on an x86/32 system.
+ */
+/* Access completed successfully: continue emulation as normal. */
+#define X86EMUL_CONTINUE        0
+/* Access is unhandleable: bail from emulation and return error to caller. */
+#define X86EMUL_UNHANDLEABLE    1
+/* Terminate emulation but return success to the caller. */
+#define X86EMUL_PROPAGATE_FAULT 2 /* propagate a generated fault to guest */
+#define X86EMUL_RETRY_INSTR     2 /* retry the instruction for some reason */
+#define X86EMUL_CMPXCHG_FAILED  2 /* cmpxchg did not see expected value */
+struct x86_emulate_ops {
+	/*
+	 * read_std: Read bytes of standard (non-emulated/special) memory.
+	 *           Used for instruction fetch, stack operations, and others.
+	 *  @addr:  [IN ] Linear address from which to read.
+	 *  @val:   [OUT] Value read from memory, zero-extended to 'u_long'.
+	 *  @bytes: [IN ] Number of bytes to read from memory.
+	 */
+	int (*read_std)(unsigned long addr, void *val,
+			unsigned int bytes, struct kvm_vcpu *vcpu);
+
+	/*
+	 * read_emulated: Read bytes from emulated/special memory area.
+	 *  @addr:  [IN ] Linear address from which to read.
+	 *  @val:   [OUT] Value read from memory, zero-extended to 'u_long'.
+	 *  @bytes: [IN ] Number of bytes to read from memory.
+	 */
+	int (*read_emulated) (unsigned long addr,
+			      void *val,
+			      unsigned int bytes,
+			      struct kvm_vcpu *vcpu);
+
+	/*
+	 * write_emulated: Read bytes from emulated/special memory area.
+	 *  @addr:  [IN ] Linear address to which to write.
+	 *  @val:   [IN ] Value to write to memory (low-order bytes used as
+	 *                required).
+	 *  @bytes: [IN ] Number of bytes to write to memory.
+	 */
+	int (*write_emulated) (unsigned long addr,
+			       const void *val,
+			       unsigned int bytes,
+			       struct kvm_vcpu *vcpu);
+
+	/*
+	 * cmpxchg_emulated: Emulate an atomic (LOCKed) CMPXCHG operation on an
+	 *                   emulated/special memory area.
+	 *  @addr:  [IN ] Linear address to access.
+	 *  @old:   [IN ] Value expected to be current at @addr.
+	 *  @new:   [IN ] Value to write to @addr.
+	 *  @bytes: [IN ] Number of bytes to access using CMPXCHG.
+	 */
+	int (*cmpxchg_emulated) (unsigned long addr,
+				 const void *old,
+				 const void *new,
+				 unsigned int bytes,
+				 struct kvm_vcpu *vcpu);
+
+};
+
+/* Type, address-of, and value of an instruction's operand. */
+struct operand {
+	enum { OP_REG, OP_MEM, OP_IMM, OP_NONE } type;
+	unsigned int bytes;
+	unsigned long val, orig_val, *ptr;
+};
+
+struct fetch_cache {
+	u8 data[15];
+	unsigned long start;
+	unsigned long end;
+};
+
+struct decode_cache {
+	u8 twobyte;
+	u8 b;
+	u8 lock_prefix;
+	u8 rep_prefix;
+	u8 op_bytes;
+	u8 ad_bytes;
+	u8 rex_prefix;
+	struct operand src;
+	struct operand dst;
+	unsigned long *override_base;
+	unsigned int d;
+	unsigned long regs[NR_VCPU_REGS];
+	unsigned long eip;
+	/* modrm */
+	u8 modrm;
+	u8 modrm_mod;
+	u8 modrm_reg;
+	u8 modrm_rm;
+	u8 use_modrm_ea;
+	unsigned long modrm_ea;
+	unsigned long modrm_val;
+	struct fetch_cache fetch;
+};
+
+struct x86_emulate_ctxt {
+	/* Register state before/after emulation. */
+	struct kvm_vcpu *vcpu;
+
+	/* Linear faulting address (if emulating a page-faulting instruction). */
+	unsigned long eflags;
+
+	/* Emulated execution mode, represented by an X86EMUL_MODE value. */
+	int mode;
+
+	unsigned long cs_base;
+	unsigned long ds_base;
+	unsigned long es_base;
+	unsigned long ss_base;
+	unsigned long gs_base;
+	unsigned long fs_base;
+
+	/* decode cache */
+
+	struct decode_cache decode;
+};
+
+/* Repeat String Operation Prefix */
+#define REPE_PREFIX  1
+#define REPNE_PREFIX    2
+
+/* Execution mode, passed to the emulator. */
+#define X86EMUL_MODE_REAL     0	/* Real mode.             */
+#define X86EMUL_MODE_PROT16   2	/* 16-bit protected mode. */
+#define X86EMUL_MODE_PROT32   4	/* 32-bit protected mode. */
+#define X86EMUL_MODE_PROT64   8	/* 64-bit (long) mode.    */
+
+/* Host execution mode. */
+#if defined(__i386__)
+#define X86EMUL_MODE_HOST X86EMUL_MODE_PROT32
+#elif defined(CONFIG_X86_64)
+#define X86EMUL_MODE_HOST X86EMUL_MODE_PROT64
+#endif
+
+int x86_decode_insn(struct x86_emulate_ctxt *ctxt,
+		    struct x86_emulate_ops *ops);
+int x86_emulate_insn(struct x86_emulate_ctxt *ctxt,
+		     struct x86_emulate_ops *ops);
+
+#endif				/* __X86_EMULATE_H__ */
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
new file mode 100644
index 000000000000..a85d5b6943de
--- /dev/null
+++ b/include/linux/kvm_host.h
@@ -0,0 +1,289 @@
+#ifndef __KVM_HOST_H
+#define __KVM_HOST_H
+
+/*
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ */
+
+#include <linux/types.h>
+#include <linux/hardirq.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/preempt.h>
+#include <asm/signal.h>
+
+#include <linux/kvm.h>
+#include <linux/kvm_para.h>
+
+#include <linux/kvm_types.h>
+
+#include <asm/kvm_host.h>
+
+#define KVM_MAX_VCPUS 4
+#define KVM_MEMORY_SLOTS 8
+/* memory slots that does not exposed to userspace */
+#define KVM_PRIVATE_MEM_SLOTS 4
+
+#define KVM_PIO_PAGE_OFFSET 1
+
+/*
+ * vcpu->requests bit members
+ */
+#define KVM_REQ_TLB_FLUSH          0
+
+
+struct kvm_vcpu;
+extern struct kmem_cache *kvm_vcpu_cache;
+
+struct kvm_guest_debug {
+	int enabled;
+	unsigned long bp[4];
+	int singlestep;
+};
+
+/*
+ * It would be nice to use something smarter than a linear search, TBD...
+ * Thankfully we dont expect many devices to register (famous last words :),
+ * so until then it will suffice.  At least its abstracted so we can change
+ * in one place.
+ */
+struct kvm_io_bus {
+	int                   dev_count;
+#define NR_IOBUS_DEVS 6
+	struct kvm_io_device *devs[NR_IOBUS_DEVS];
+};
+
+void kvm_io_bus_init(struct kvm_io_bus *bus);
+void kvm_io_bus_destroy(struct kvm_io_bus *bus);
+struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr);
+void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
+			     struct kvm_io_device *dev);
+
+struct kvm_vcpu {
+	struct kvm *kvm;
+	struct preempt_notifier preempt_notifier;
+	int vcpu_id;
+	struct mutex mutex;
+	int   cpu;
+	struct kvm_run *run;
+	int guest_mode;
+	unsigned long requests;
+	struct kvm_guest_debug guest_debug;
+	int fpu_active;
+	int guest_fpu_loaded;
+	wait_queue_head_t wq;
+	int sigset_active;
+	sigset_t sigset;
+	struct kvm_vcpu_stat stat;
+
+#ifdef CONFIG_HAS_IOMEM
+	int mmio_needed;
+	int mmio_read_completed;
+	int mmio_is_write;
+	int mmio_size;
+	unsigned char mmio_data[8];
+	gpa_t mmio_phys_addr;
+#endif
+
+	struct kvm_vcpu_arch arch;
+};
+
+struct kvm_memory_slot {
+	gfn_t base_gfn;
+	unsigned long npages;
+	unsigned long flags;
+	unsigned long *rmap;
+	unsigned long *dirty_bitmap;
+	unsigned long userspace_addr;
+	int user_alloc;
+};
+
+struct kvm {
+	struct mutex lock; /* protects everything except vcpus */
+	struct mm_struct *mm; /* userspace tied to this vm */
+	int nmemslots;
+	struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
+					KVM_PRIVATE_MEM_SLOTS];
+	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
+	struct list_head vm_list;
+	struct file *filp;
+	struct kvm_io_bus mmio_bus;
+	struct kvm_io_bus pio_bus;
+	struct kvm_vm_stat stat;
+	struct kvm_arch arch;
+};
+
+/* The guest did something we don't support. */
+#define pr_unimpl(vcpu, fmt, ...)					\
+ do {									\
+	if (printk_ratelimit())						\
+		printk(KERN_ERR "kvm: %i: cpu%i " fmt,			\
+		       current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
+ } while (0)
+
+#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
+#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
+
+int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
+void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
+
+void vcpu_load(struct kvm_vcpu *vcpu);
+void vcpu_put(struct kvm_vcpu *vcpu);
+
+void decache_vcpus_on_cpu(int cpu);
+
+
+int kvm_init(void *opaque, unsigned int vcpu_size,
+		  struct module *module);
+void kvm_exit(void);
+
+#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
+#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
+static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
+struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva);
+
+extern struct page *bad_page;
+
+int is_error_page(struct page *page);
+int kvm_is_error_hva(unsigned long addr);
+int kvm_set_memory_region(struct kvm *kvm,
+			  struct kvm_userspace_memory_region *mem,
+			  int user_alloc);
+int __kvm_set_memory_region(struct kvm *kvm,
+			    struct kvm_userspace_memory_region *mem,
+			    int user_alloc);
+int kvm_arch_set_memory_region(struct kvm *kvm,
+				struct kvm_userspace_memory_region *mem,
+				struct kvm_memory_slot old,
+				int user_alloc);
+gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
+struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
+void kvm_release_page_clean(struct page *page);
+void kvm_release_page_dirty(struct page *page);
+int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
+			int len);
+int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
+int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
+			 int offset, int len);
+int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
+		    unsigned long len);
+int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
+int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
+struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
+int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
+void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
+
+void kvm_vcpu_block(struct kvm_vcpu *vcpu);
+void kvm_resched(struct kvm_vcpu *vcpu);
+void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
+void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
+void kvm_flush_remote_tlbs(struct kvm *kvm);
+
+long kvm_arch_dev_ioctl(struct file *filp,
+			unsigned int ioctl, unsigned long arg);
+long kvm_arch_vcpu_ioctl(struct file *filp,
+			 unsigned int ioctl, unsigned long arg);
+void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
+void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
+
+int kvm_dev_ioctl_check_extension(long ext);
+
+int kvm_get_dirty_log(struct kvm *kvm,
+			struct kvm_dirty_log *log, int *is_dirty);
+int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
+				struct kvm_dirty_log *log);
+
+int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
+				   struct
+				   kvm_userspace_memory_region *mem,
+				   int user_alloc);
+long kvm_arch_vm_ioctl(struct file *filp,
+		       unsigned int ioctl, unsigned long arg);
+void kvm_arch_destroy_vm(struct kvm *kvm);
+
+int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
+int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
+
+int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
+				    struct kvm_translation *tr);
+
+int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
+int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
+int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
+				  struct kvm_sregs *sregs);
+int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
+				  struct kvm_sregs *sregs);
+int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
+				    struct kvm_debug_guest *dbg);
+int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
+
+int kvm_arch_init(void *opaque);
+void kvm_arch_exit(void);
+
+int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
+void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
+
+void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
+void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
+void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
+struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id);
+int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
+void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
+
+int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
+void kvm_arch_hardware_enable(void *garbage);
+void kvm_arch_hardware_disable(void *garbage);
+int kvm_arch_hardware_setup(void);
+void kvm_arch_hardware_unsetup(void);
+void kvm_arch_check_processor_compat(void *rtn);
+int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
+
+void kvm_free_physmem(struct kvm *kvm);
+
+struct  kvm *kvm_arch_create_vm(void);
+void kvm_arch_destroy_vm(struct kvm *kvm);
+
+int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
+int kvm_cpu_has_interrupt(struct kvm_vcpu *v);
+
+static inline void kvm_guest_enter(void)
+{
+	account_system_vtime(current);
+	current->flags |= PF_VCPU;
+}
+
+static inline void kvm_guest_exit(void)
+{
+	account_system_vtime(current);
+	current->flags &= ~PF_VCPU;
+}
+
+static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
+{
+	return slot - kvm->memslots;
+}
+
+static inline gpa_t gfn_to_gpa(gfn_t gfn)
+{
+	return (gpa_t)gfn << PAGE_SHIFT;
+}
+
+enum kvm_stat_kind {
+	KVM_STAT_VM,
+	KVM_STAT_VCPU,
+};
+
+struct kvm_stats_debugfs_item {
+	const char *name;
+	int offset;
+	enum kvm_stat_kind kind;
+	struct dentry *dentry;
+};
+extern struct kvm_stats_debugfs_item debugfs_entries[];
+
+#endif
diff --git a/include/linux/kvm_types.h b/include/linux/kvm_types.h
new file mode 100644
index 000000000000..1c4e46decb22
--- /dev/null
+++ b/include/linux/kvm_types.h
@@ -0,0 +1,54 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ */
+
+#ifndef __KVM_TYPES_H__
+#define __KVM_TYPES_H__
+
+#include <asm/types.h>
+
+/*
+ * Address types:
+ *
+ *  gva - guest virtual address
+ *  gpa - guest physical address
+ *  gfn - guest frame number
+ *  hva - host virtual address
+ *  hpa - host physical address
+ *  hfn - host frame number
+ */
+
+typedef unsigned long  gva_t;
+typedef u64            gpa_t;
+typedef unsigned long  gfn_t;
+
+typedef unsigned long  hva_t;
+typedef u64            hpa_t;
+typedef unsigned long  hfn_t;
+
+struct kvm_pio_request {
+	unsigned long count;
+	int cur_count;
+	struct page *guest_pages[2];
+	unsigned guest_page_offset;
+	int in;
+	int port;
+	int size;
+	int string;
+	int down;
+	int rep;
+};
+
+#endif /* __KVM_TYPES_H__ */
-- 
cgit v1.2.3-59-g8ed1b


From 0fce5623ba248d3af0d7fb719d5ac367cc9d5192 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Sun, 16 Dec 2007 11:13:16 +0200
Subject: KVM: Move drivers/kvm/* to virt/kvm/

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/Makefile  |    4 +-
 drivers/kvm/iodev.h    |   63 ---
 drivers/kvm/kvm_main.c | 1393 ------------------------------------------------
 virt/kvm/iodev.h       |   63 +++
 virt/kvm/kvm_main.c    | 1393 ++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 1458 insertions(+), 1458 deletions(-)
 delete mode 100644 drivers/kvm/iodev.h
 delete mode 100644 drivers/kvm/kvm_main.c
 create mode 100644 virt/kvm/iodev.h
 create mode 100644 virt/kvm/kvm_main.c

(limited to 'arch')

diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
index 880ffe403b35..af41534af496 100644
--- a/arch/x86/kvm/Makefile
+++ b/arch/x86/kvm/Makefile
@@ -2,9 +2,9 @@
 # Makefile for Kernel-based Virtual Machine module
 #
 
-common-objs = $(addprefix ../../../drivers/kvm/, kvm_main.o)
+common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o)
 
-EXTRA_CFLAGS += -I drivers/kvm
+EXTRA_CFLAGS += -I virt/kvm
 
 kvm-objs := $(common-objs) x86.o mmu.o x86_emulate.o i8259.o irq.o lapic.o \
 	ioapic.o
diff --git a/drivers/kvm/iodev.h b/drivers/kvm/iodev.h
deleted file mode 100644
index c14e642027b2..000000000000
--- a/drivers/kvm/iodev.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- */
-
-#ifndef __KVM_IODEV_H__
-#define __KVM_IODEV_H__
-
-#include <linux/kvm_types.h>
-
-struct kvm_io_device {
-	void (*read)(struct kvm_io_device *this,
-		     gpa_t addr,
-		     int len,
-		     void *val);
-	void (*write)(struct kvm_io_device *this,
-		      gpa_t addr,
-		      int len,
-		      const void *val);
-	int (*in_range)(struct kvm_io_device *this, gpa_t addr);
-	void (*destructor)(struct kvm_io_device *this);
-
-	void             *private;
-};
-
-static inline void kvm_iodevice_read(struct kvm_io_device *dev,
-				     gpa_t addr,
-				     int len,
-				     void *val)
-{
-	dev->read(dev, addr, len, val);
-}
-
-static inline void kvm_iodevice_write(struct kvm_io_device *dev,
-				      gpa_t addr,
-				      int len,
-				      const void *val)
-{
-	dev->write(dev, addr, len, val);
-}
-
-static inline int kvm_iodevice_inrange(struct kvm_io_device *dev, gpa_t addr)
-{
-	return dev->in_range(dev, addr);
-}
-
-static inline void kvm_iodevice_destructor(struct kvm_io_device *dev)
-{
-	if (dev->destructor)
-		dev->destructor(dev);
-}
-
-#endif /* __KVM_IODEV_H__ */
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
deleted file mode 100644
index 4026d7d64296..000000000000
--- a/drivers/kvm/kvm_main.c
+++ /dev/null
@@ -1,1393 +0,0 @@
-/*
- * Kernel-based Virtual Machine driver for Linux
- *
- * This module enables machines with Intel VT-x extensions to run virtual
- * machines without emulation or binary translation.
- *
- * Copyright (C) 2006 Qumranet, Inc.
- *
- * Authors:
- *   Avi Kivity   <avi@qumranet.com>
- *   Yaniv Kamay  <yaniv@qumranet.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- *
- */
-
-#include "iodev.h"
-
-#include <linux/kvm_host.h>
-#include <linux/kvm.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/percpu.h>
-#include <linux/gfp.h>
-#include <linux/mm.h>
-#include <linux/miscdevice.h>
-#include <linux/vmalloc.h>
-#include <linux/reboot.h>
-#include <linux/debugfs.h>
-#include <linux/highmem.h>
-#include <linux/file.h>
-#include <linux/sysdev.h>
-#include <linux/cpu.h>
-#include <linux/sched.h>
-#include <linux/cpumask.h>
-#include <linux/smp.h>
-#include <linux/anon_inodes.h>
-#include <linux/profile.h>
-#include <linux/kvm_para.h>
-#include <linux/pagemap.h>
-#include <linux/mman.h>
-
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-MODULE_AUTHOR("Qumranet");
-MODULE_LICENSE("GPL");
-
-DEFINE_SPINLOCK(kvm_lock);
-LIST_HEAD(vm_list);
-
-static cpumask_t cpus_hardware_enabled;
-
-struct kmem_cache *kvm_vcpu_cache;
-EXPORT_SYMBOL_GPL(kvm_vcpu_cache);
-
-static __read_mostly struct preempt_ops kvm_preempt_ops;
-
-static struct dentry *debugfs_dir;
-
-static long kvm_vcpu_ioctl(struct file *file, unsigned int ioctl,
-			   unsigned long arg);
-
-static inline int valid_vcpu(int n)
-{
-	return likely(n >= 0 && n < KVM_MAX_VCPUS);
-}
-
-/*
- * Switches to specified vcpu, until a matching vcpu_put()
- */
-void vcpu_load(struct kvm_vcpu *vcpu)
-{
-	int cpu;
-
-	mutex_lock(&vcpu->mutex);
-	cpu = get_cpu();
-	preempt_notifier_register(&vcpu->preempt_notifier);
-	kvm_arch_vcpu_load(vcpu, cpu);
-	put_cpu();
-}
-
-void vcpu_put(struct kvm_vcpu *vcpu)
-{
-	preempt_disable();
-	kvm_arch_vcpu_put(vcpu);
-	preempt_notifier_unregister(&vcpu->preempt_notifier);
-	preempt_enable();
-	mutex_unlock(&vcpu->mutex);
-}
-
-static void ack_flush(void *_completed)
-{
-}
-
-void kvm_flush_remote_tlbs(struct kvm *kvm)
-{
-	int i, cpu;
-	cpumask_t cpus;
-	struct kvm_vcpu *vcpu;
-
-	cpus_clear(cpus);
-	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
-		vcpu = kvm->vcpus[i];
-		if (!vcpu)
-			continue;
-		if (test_and_set_bit(KVM_REQ_TLB_FLUSH, &vcpu->requests))
-			continue;
-		cpu = vcpu->cpu;
-		if (cpu != -1 && cpu != raw_smp_processor_id())
-			cpu_set(cpu, cpus);
-	}
-	if (cpus_empty(cpus))
-		return;
-	++kvm->stat.remote_tlb_flush;
-	smp_call_function_mask(cpus, ack_flush, NULL, 1);
-}
-
-int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id)
-{
-	struct page *page;
-	int r;
-
-	mutex_init(&vcpu->mutex);
-	vcpu->cpu = -1;
-	vcpu->kvm = kvm;
-	vcpu->vcpu_id = id;
-	init_waitqueue_head(&vcpu->wq);
-
-	page = alloc_page(GFP_KERNEL | __GFP_ZERO);
-	if (!page) {
-		r = -ENOMEM;
-		goto fail;
-	}
-	vcpu->run = page_address(page);
-
-	r = kvm_arch_vcpu_init(vcpu);
-	if (r < 0)
-		goto fail_free_run;
-	return 0;
-
-fail_free_run:
-	free_page((unsigned long)vcpu->run);
-fail:
-	return r;
-}
-EXPORT_SYMBOL_GPL(kvm_vcpu_init);
-
-void kvm_vcpu_uninit(struct kvm_vcpu *vcpu)
-{
-	kvm_arch_vcpu_uninit(vcpu);
-	free_page((unsigned long)vcpu->run);
-}
-EXPORT_SYMBOL_GPL(kvm_vcpu_uninit);
-
-static struct kvm *kvm_create_vm(void)
-{
-	struct kvm *kvm = kvm_arch_create_vm();
-
-	if (IS_ERR(kvm))
-		goto out;
-
-	kvm->mm = current->mm;
-	atomic_inc(&kvm->mm->mm_count);
-	kvm_io_bus_init(&kvm->pio_bus);
-	mutex_init(&kvm->lock);
-	kvm_io_bus_init(&kvm->mmio_bus);
-	spin_lock(&kvm_lock);
-	list_add(&kvm->vm_list, &vm_list);
-	spin_unlock(&kvm_lock);
-out:
-	return kvm;
-}
-
-/*
- * Free any memory in @free but not in @dont.
- */
-static void kvm_free_physmem_slot(struct kvm_memory_slot *free,
-				  struct kvm_memory_slot *dont)
-{
-	if (!dont || free->rmap != dont->rmap)
-		vfree(free->rmap);
-
-	if (!dont || free->dirty_bitmap != dont->dirty_bitmap)
-		vfree(free->dirty_bitmap);
-
-	free->npages = 0;
-	free->dirty_bitmap = NULL;
-	free->rmap = NULL;
-}
-
-void kvm_free_physmem(struct kvm *kvm)
-{
-	int i;
-
-	for (i = 0; i < kvm->nmemslots; ++i)
-		kvm_free_physmem_slot(&kvm->memslots[i], NULL);
-}
-
-static void kvm_destroy_vm(struct kvm *kvm)
-{
-	struct mm_struct *mm = kvm->mm;
-
-	spin_lock(&kvm_lock);
-	list_del(&kvm->vm_list);
-	spin_unlock(&kvm_lock);
-	kvm_io_bus_destroy(&kvm->pio_bus);
-	kvm_io_bus_destroy(&kvm->mmio_bus);
-	kvm_arch_destroy_vm(kvm);
-	mmdrop(mm);
-}
-
-static int kvm_vm_release(struct inode *inode, struct file *filp)
-{
-	struct kvm *kvm = filp->private_data;
-
-	kvm_destroy_vm(kvm);
-	return 0;
-}
-
-/*
- * Allocate some memory and give it an address in the guest physical address
- * space.
- *
- * Discontiguous memory is allowed, mostly for framebuffers.
- *
- * Must be called holding kvm->lock.
- */
-int __kvm_set_memory_region(struct kvm *kvm,
-			    struct kvm_userspace_memory_region *mem,
-			    int user_alloc)
-{
-	int r;
-	gfn_t base_gfn;
-	unsigned long npages;
-	unsigned long i;
-	struct kvm_memory_slot *memslot;
-	struct kvm_memory_slot old, new;
-
-	r = -EINVAL;
-	/* General sanity checks */
-	if (mem->memory_size & (PAGE_SIZE - 1))
-		goto out;
-	if (mem->guest_phys_addr & (PAGE_SIZE - 1))
-		goto out;
-	if (mem->slot >= KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS)
-		goto out;
-	if (mem->guest_phys_addr + mem->memory_size < mem->guest_phys_addr)
-		goto out;
-
-	memslot = &kvm->memslots[mem->slot];
-	base_gfn = mem->guest_phys_addr >> PAGE_SHIFT;
-	npages = mem->memory_size >> PAGE_SHIFT;
-
-	if (!npages)
-		mem->flags &= ~KVM_MEM_LOG_DIRTY_PAGES;
-
-	new = old = *memslot;
-
-	new.base_gfn = base_gfn;
-	new.npages = npages;
-	new.flags = mem->flags;
-
-	/* Disallow changing a memory slot's size. */
-	r = -EINVAL;
-	if (npages && old.npages && npages != old.npages)
-		goto out_free;
-
-	/* Check for overlaps */
-	r = -EEXIST;
-	for (i = 0; i < KVM_MEMORY_SLOTS; ++i) {
-		struct kvm_memory_slot *s = &kvm->memslots[i];
-
-		if (s == memslot)
-			continue;
-		if (!((base_gfn + npages <= s->base_gfn) ||
-		      (base_gfn >= s->base_gfn + s->npages)))
-			goto out_free;
-	}
-
-	/* Free page dirty bitmap if unneeded */
-	if (!(new.flags & KVM_MEM_LOG_DIRTY_PAGES))
-		new.dirty_bitmap = NULL;
-
-	r = -ENOMEM;
-
-	/* Allocate if a slot is being created */
-	if (npages && !new.rmap) {
-		new.rmap = vmalloc(npages * sizeof(struct page *));
-
-		if (!new.rmap)
-			goto out_free;
-
-		memset(new.rmap, 0, npages * sizeof(*new.rmap));
-
-		new.user_alloc = user_alloc;
-		new.userspace_addr = mem->userspace_addr;
-	}
-
-	/* Allocate page dirty bitmap if needed */
-	if ((new.flags & KVM_MEM_LOG_DIRTY_PAGES) && !new.dirty_bitmap) {
-		unsigned dirty_bytes = ALIGN(npages, BITS_PER_LONG) / 8;
-
-		new.dirty_bitmap = vmalloc(dirty_bytes);
-		if (!new.dirty_bitmap)
-			goto out_free;
-		memset(new.dirty_bitmap, 0, dirty_bytes);
-	}
-
-	if (mem->slot >= kvm->nmemslots)
-		kvm->nmemslots = mem->slot + 1;
-
-	*memslot = new;
-
-	r = kvm_arch_set_memory_region(kvm, mem, old, user_alloc);
-	if (r) {
-		*memslot = old;
-		goto out_free;
-	}
-
-	kvm_free_physmem_slot(&old, &new);
-	return 0;
-
-out_free:
-	kvm_free_physmem_slot(&new, &old);
-out:
-	return r;
-
-}
-EXPORT_SYMBOL_GPL(__kvm_set_memory_region);
-
-int kvm_set_memory_region(struct kvm *kvm,
-			  struct kvm_userspace_memory_region *mem,
-			  int user_alloc)
-{
-	int r;
-
-	mutex_lock(&kvm->lock);
-	r = __kvm_set_memory_region(kvm, mem, user_alloc);
-	mutex_unlock(&kvm->lock);
-	return r;
-}
-EXPORT_SYMBOL_GPL(kvm_set_memory_region);
-
-int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
-				   struct
-				   kvm_userspace_memory_region *mem,
-				   int user_alloc)
-{
-	if (mem->slot >= KVM_MEMORY_SLOTS)
-		return -EINVAL;
-	return kvm_set_memory_region(kvm, mem, user_alloc);
-}
-
-int kvm_get_dirty_log(struct kvm *kvm,
-			struct kvm_dirty_log *log, int *is_dirty)
-{
-	struct kvm_memory_slot *memslot;
-	int r, i;
-	int n;
-	unsigned long any = 0;
-
-	r = -EINVAL;
-	if (log->slot >= KVM_MEMORY_SLOTS)
-		goto out;
-
-	memslot = &kvm->memslots[log->slot];
-	r = -ENOENT;
-	if (!memslot->dirty_bitmap)
-		goto out;
-
-	n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
-
-	for (i = 0; !any && i < n/sizeof(long); ++i)
-		any = memslot->dirty_bitmap[i];
-
-	r = -EFAULT;
-	if (copy_to_user(log->dirty_bitmap, memslot->dirty_bitmap, n))
-		goto out;
-
-	if (any)
-		*is_dirty = 1;
-
-	r = 0;
-out:
-	return r;
-}
-
-int is_error_page(struct page *page)
-{
-	return page == bad_page;
-}
-EXPORT_SYMBOL_GPL(is_error_page);
-
-static inline unsigned long bad_hva(void)
-{
-	return PAGE_OFFSET;
-}
-
-int kvm_is_error_hva(unsigned long addr)
-{
-	return addr == bad_hva();
-}
-EXPORT_SYMBOL_GPL(kvm_is_error_hva);
-
-static struct kvm_memory_slot *__gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
-{
-	int i;
-
-	for (i = 0; i < kvm->nmemslots; ++i) {
-		struct kvm_memory_slot *memslot = &kvm->memslots[i];
-
-		if (gfn >= memslot->base_gfn
-		    && gfn < memslot->base_gfn + memslot->npages)
-			return memslot;
-	}
-	return NULL;
-}
-
-struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
-{
-	gfn = unalias_gfn(kvm, gfn);
-	return __gfn_to_memslot(kvm, gfn);
-}
-
-int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn)
-{
-	int i;
-
-	gfn = unalias_gfn(kvm, gfn);
-	for (i = 0; i < KVM_MEMORY_SLOTS; ++i) {
-		struct kvm_memory_slot *memslot = &kvm->memslots[i];
-
-		if (gfn >= memslot->base_gfn
-		    && gfn < memslot->base_gfn + memslot->npages)
-			return 1;
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(kvm_is_visible_gfn);
-
-static unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn)
-{
-	struct kvm_memory_slot *slot;
-
-	gfn = unalias_gfn(kvm, gfn);
-	slot = __gfn_to_memslot(kvm, gfn);
-	if (!slot)
-		return bad_hva();
-	return (slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE);
-}
-
-/*
- * Requires current->mm->mmap_sem to be held
- */
-static struct page *__gfn_to_page(struct kvm *kvm, gfn_t gfn)
-{
-	struct page *page[1];
-	unsigned long addr;
-	int npages;
-
-	might_sleep();
-
-	addr = gfn_to_hva(kvm, gfn);
-	if (kvm_is_error_hva(addr)) {
-		get_page(bad_page);
-		return bad_page;
-	}
-
-	npages = get_user_pages(current, current->mm, addr, 1, 1, 1, page,
-				NULL);
-
-	if (npages != 1) {
-		get_page(bad_page);
-		return bad_page;
-	}
-
-	return page[0];
-}
-
-struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn)
-{
-	struct page *page;
-
-	down_read(&current->mm->mmap_sem);
-	page = __gfn_to_page(kvm, gfn);
-	up_read(&current->mm->mmap_sem);
-
-	return page;
-}
-
-EXPORT_SYMBOL_GPL(gfn_to_page);
-
-void kvm_release_page_clean(struct page *page)
-{
-	put_page(page);
-}
-EXPORT_SYMBOL_GPL(kvm_release_page_clean);
-
-void kvm_release_page_dirty(struct page *page)
-{
-	if (!PageReserved(page))
-		SetPageDirty(page);
-	put_page(page);
-}
-EXPORT_SYMBOL_GPL(kvm_release_page_dirty);
-
-static int next_segment(unsigned long len, int offset)
-{
-	if (len > PAGE_SIZE - offset)
-		return PAGE_SIZE - offset;
-	else
-		return len;
-}
-
-int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
-			int len)
-{
-	int r;
-	unsigned long addr;
-
-	addr = gfn_to_hva(kvm, gfn);
-	if (kvm_is_error_hva(addr))
-		return -EFAULT;
-	r = copy_from_user(data, (void __user *)addr + offset, len);
-	if (r)
-		return -EFAULT;
-	return 0;
-}
-EXPORT_SYMBOL_GPL(kvm_read_guest_page);
-
-int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len)
-{
-	gfn_t gfn = gpa >> PAGE_SHIFT;
-	int seg;
-	int offset = offset_in_page(gpa);
-	int ret;
-
-	while ((seg = next_segment(len, offset)) != 0) {
-		ret = kvm_read_guest_page(kvm, gfn, data, offset, seg);
-		if (ret < 0)
-			return ret;
-		offset = 0;
-		len -= seg;
-		data += seg;
-		++gfn;
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(kvm_read_guest);
-
-int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
-			 int offset, int len)
-{
-	int r;
-	unsigned long addr;
-
-	addr = gfn_to_hva(kvm, gfn);
-	if (kvm_is_error_hva(addr))
-		return -EFAULT;
-	r = copy_to_user((void __user *)addr + offset, data, len);
-	if (r)
-		return -EFAULT;
-	mark_page_dirty(kvm, gfn);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(kvm_write_guest_page);
-
-int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
-		    unsigned long len)
-{
-	gfn_t gfn = gpa >> PAGE_SHIFT;
-	int seg;
-	int offset = offset_in_page(gpa);
-	int ret;
-
-	while ((seg = next_segment(len, offset)) != 0) {
-		ret = kvm_write_guest_page(kvm, gfn, data, offset, seg);
-		if (ret < 0)
-			return ret;
-		offset = 0;
-		len -= seg;
-		data += seg;
-		++gfn;
-	}
-	return 0;
-}
-
-int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len)
-{
-	return kvm_write_guest_page(kvm, gfn, empty_zero_page, offset, len);
-}
-EXPORT_SYMBOL_GPL(kvm_clear_guest_page);
-
-int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len)
-{
-	gfn_t gfn = gpa >> PAGE_SHIFT;
-	int seg;
-	int offset = offset_in_page(gpa);
-	int ret;
-
-        while ((seg = next_segment(len, offset)) != 0) {
-		ret = kvm_clear_guest_page(kvm, gfn, offset, seg);
-		if (ret < 0)
-			return ret;
-		offset = 0;
-		len -= seg;
-		++gfn;
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(kvm_clear_guest);
-
-void mark_page_dirty(struct kvm *kvm, gfn_t gfn)
-{
-	struct kvm_memory_slot *memslot;
-
-	gfn = unalias_gfn(kvm, gfn);
-	memslot = __gfn_to_memslot(kvm, gfn);
-	if (memslot && memslot->dirty_bitmap) {
-		unsigned long rel_gfn = gfn - memslot->base_gfn;
-
-		/* avoid RMW */
-		if (!test_bit(rel_gfn, memslot->dirty_bitmap))
-			set_bit(rel_gfn, memslot->dirty_bitmap);
-	}
-}
-
-/*
- * The vCPU has executed a HLT instruction with in-kernel mode enabled.
- */
-void kvm_vcpu_block(struct kvm_vcpu *vcpu)
-{
-	DECLARE_WAITQUEUE(wait, current);
-
-	add_wait_queue(&vcpu->wq, &wait);
-
-	/*
-	 * We will block until either an interrupt or a signal wakes us up
-	 */
-	while (!kvm_cpu_has_interrupt(vcpu)
-	       && !signal_pending(current)
-	       && !kvm_arch_vcpu_runnable(vcpu)) {
-		set_current_state(TASK_INTERRUPTIBLE);
-		vcpu_put(vcpu);
-		schedule();
-		vcpu_load(vcpu);
-	}
-
-	__set_current_state(TASK_RUNNING);
-	remove_wait_queue(&vcpu->wq, &wait);
-}
-
-void kvm_resched(struct kvm_vcpu *vcpu)
-{
-	if (!need_resched())
-		return;
-	cond_resched();
-}
-EXPORT_SYMBOL_GPL(kvm_resched);
-
-static int kvm_vcpu_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	struct kvm_vcpu *vcpu = vma->vm_file->private_data;
-	struct page *page;
-
-	if (vmf->pgoff == 0)
-		page = virt_to_page(vcpu->run);
-	else if (vmf->pgoff == KVM_PIO_PAGE_OFFSET)
-		page = virt_to_page(vcpu->arch.pio_data);
-	else
-		return VM_FAULT_SIGBUS;
-	get_page(page);
-	vmf->page = page;
-	return 0;
-}
-
-static struct vm_operations_struct kvm_vcpu_vm_ops = {
-	.fault = kvm_vcpu_fault,
-};
-
-static int kvm_vcpu_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	vma->vm_ops = &kvm_vcpu_vm_ops;
-	return 0;
-}
-
-static int kvm_vcpu_release(struct inode *inode, struct file *filp)
-{
-	struct kvm_vcpu *vcpu = filp->private_data;
-
-	fput(vcpu->kvm->filp);
-	return 0;
-}
-
-static struct file_operations kvm_vcpu_fops = {
-	.release        = kvm_vcpu_release,
-	.unlocked_ioctl = kvm_vcpu_ioctl,
-	.compat_ioctl   = kvm_vcpu_ioctl,
-	.mmap           = kvm_vcpu_mmap,
-};
-
-/*
- * Allocates an inode for the vcpu.
- */
-static int create_vcpu_fd(struct kvm_vcpu *vcpu)
-{
-	int fd, r;
-	struct inode *inode;
-	struct file *file;
-
-	r = anon_inode_getfd(&fd, &inode, &file,
-			     "kvm-vcpu", &kvm_vcpu_fops, vcpu);
-	if (r)
-		return r;
-	atomic_inc(&vcpu->kvm->filp->f_count);
-	return fd;
-}
-
-/*
- * Creates some virtual cpus.  Good luck creating more than one.
- */
-static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, int n)
-{
-	int r;
-	struct kvm_vcpu *vcpu;
-
-	if (!valid_vcpu(n))
-		return -EINVAL;
-
-	vcpu = kvm_arch_vcpu_create(kvm, n);
-	if (IS_ERR(vcpu))
-		return PTR_ERR(vcpu);
-
-	preempt_notifier_init(&vcpu->preempt_notifier, &kvm_preempt_ops);
-
-	r = kvm_arch_vcpu_setup(vcpu);
-	if (r)
-		goto vcpu_destroy;
-
-	mutex_lock(&kvm->lock);
-	if (kvm->vcpus[n]) {
-		r = -EEXIST;
-		mutex_unlock(&kvm->lock);
-		goto vcpu_destroy;
-	}
-	kvm->vcpus[n] = vcpu;
-	mutex_unlock(&kvm->lock);
-
-	/* Now it's all set up, let userspace reach it */
-	r = create_vcpu_fd(vcpu);
-	if (r < 0)
-		goto unlink;
-	return r;
-
-unlink:
-	mutex_lock(&kvm->lock);
-	kvm->vcpus[n] = NULL;
-	mutex_unlock(&kvm->lock);
-vcpu_destroy:
-	kvm_arch_vcpu_destroy(vcpu);
-	return r;
-}
-
-static int kvm_vcpu_ioctl_set_sigmask(struct kvm_vcpu *vcpu, sigset_t *sigset)
-{
-	if (sigset) {
-		sigdelsetmask(sigset, sigmask(SIGKILL)|sigmask(SIGSTOP));
-		vcpu->sigset_active = 1;
-		vcpu->sigset = *sigset;
-	} else
-		vcpu->sigset_active = 0;
-	return 0;
-}
-
-static long kvm_vcpu_ioctl(struct file *filp,
-			   unsigned int ioctl, unsigned long arg)
-{
-	struct kvm_vcpu *vcpu = filp->private_data;
-	void __user *argp = (void __user *)arg;
-	int r;
-
-	if (vcpu->kvm->mm != current->mm)
-		return -EIO;
-	switch (ioctl) {
-	case KVM_RUN:
-		r = -EINVAL;
-		if (arg)
-			goto out;
-		r = kvm_arch_vcpu_ioctl_run(vcpu, vcpu->run);
-		break;
-	case KVM_GET_REGS: {
-		struct kvm_regs kvm_regs;
-
-		memset(&kvm_regs, 0, sizeof kvm_regs);
-		r = kvm_arch_vcpu_ioctl_get_regs(vcpu, &kvm_regs);
-		if (r)
-			goto out;
-		r = -EFAULT;
-		if (copy_to_user(argp, &kvm_regs, sizeof kvm_regs))
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_SET_REGS: {
-		struct kvm_regs kvm_regs;
-
-		r = -EFAULT;
-		if (copy_from_user(&kvm_regs, argp, sizeof kvm_regs))
-			goto out;
-		r = kvm_arch_vcpu_ioctl_set_regs(vcpu, &kvm_regs);
-		if (r)
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_GET_SREGS: {
-		struct kvm_sregs kvm_sregs;
-
-		memset(&kvm_sregs, 0, sizeof kvm_sregs);
-		r = kvm_arch_vcpu_ioctl_get_sregs(vcpu, &kvm_sregs);
-		if (r)
-			goto out;
-		r = -EFAULT;
-		if (copy_to_user(argp, &kvm_sregs, sizeof kvm_sregs))
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_SET_SREGS: {
-		struct kvm_sregs kvm_sregs;
-
-		r = -EFAULT;
-		if (copy_from_user(&kvm_sregs, argp, sizeof kvm_sregs))
-			goto out;
-		r = kvm_arch_vcpu_ioctl_set_sregs(vcpu, &kvm_sregs);
-		if (r)
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_TRANSLATE: {
-		struct kvm_translation tr;
-
-		r = -EFAULT;
-		if (copy_from_user(&tr, argp, sizeof tr))
-			goto out;
-		r = kvm_arch_vcpu_ioctl_translate(vcpu, &tr);
-		if (r)
-			goto out;
-		r = -EFAULT;
-		if (copy_to_user(argp, &tr, sizeof tr))
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_DEBUG_GUEST: {
-		struct kvm_debug_guest dbg;
-
-		r = -EFAULT;
-		if (copy_from_user(&dbg, argp, sizeof dbg))
-			goto out;
-		r = kvm_arch_vcpu_ioctl_debug_guest(vcpu, &dbg);
-		if (r)
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_SET_SIGNAL_MASK: {
-		struct kvm_signal_mask __user *sigmask_arg = argp;
-		struct kvm_signal_mask kvm_sigmask;
-		sigset_t sigset, *p;
-
-		p = NULL;
-		if (argp) {
-			r = -EFAULT;
-			if (copy_from_user(&kvm_sigmask, argp,
-					   sizeof kvm_sigmask))
-				goto out;
-			r = -EINVAL;
-			if (kvm_sigmask.len != sizeof sigset)
-				goto out;
-			r = -EFAULT;
-			if (copy_from_user(&sigset, sigmask_arg->sigset,
-					   sizeof sigset))
-				goto out;
-			p = &sigset;
-		}
-		r = kvm_vcpu_ioctl_set_sigmask(vcpu, &sigset);
-		break;
-	}
-	case KVM_GET_FPU: {
-		struct kvm_fpu fpu;
-
-		memset(&fpu, 0, sizeof fpu);
-		r = kvm_arch_vcpu_ioctl_get_fpu(vcpu, &fpu);
-		if (r)
-			goto out;
-		r = -EFAULT;
-		if (copy_to_user(argp, &fpu, sizeof fpu))
-			goto out;
-		r = 0;
-		break;
-	}
-	case KVM_SET_FPU: {
-		struct kvm_fpu fpu;
-
-		r = -EFAULT;
-		if (copy_from_user(&fpu, argp, sizeof fpu))
-			goto out;
-		r = kvm_arch_vcpu_ioctl_set_fpu(vcpu, &fpu);
-		if (r)
-			goto out;
-		r = 0;
-		break;
-	}
-	default:
-		r = kvm_arch_vcpu_ioctl(filp, ioctl, arg);
-	}
-out:
-	return r;
-}
-
-static long kvm_vm_ioctl(struct file *filp,
-			   unsigned int ioctl, unsigned long arg)
-{
-	struct kvm *kvm = filp->private_data;
-	void __user *argp = (void __user *)arg;
-	int r;
-
-	if (kvm->mm != current->mm)
-		return -EIO;
-	switch (ioctl) {
-	case KVM_CREATE_VCPU:
-		r = kvm_vm_ioctl_create_vcpu(kvm, arg);
-		if (r < 0)
-			goto out;
-		break;
-	case KVM_SET_USER_MEMORY_REGION: {
-		struct kvm_userspace_memory_region kvm_userspace_mem;
-
-		r = -EFAULT;
-		if (copy_from_user(&kvm_userspace_mem, argp,
-						sizeof kvm_userspace_mem))
-			goto out;
-
-		r = kvm_vm_ioctl_set_memory_region(kvm, &kvm_userspace_mem, 1);
-		if (r)
-			goto out;
-		break;
-	}
-	case KVM_GET_DIRTY_LOG: {
-		struct kvm_dirty_log log;
-
-		r = -EFAULT;
-		if (copy_from_user(&log, argp, sizeof log))
-			goto out;
-		r = kvm_vm_ioctl_get_dirty_log(kvm, &log);
-		if (r)
-			goto out;
-		break;
-	}
-	default:
-		r = kvm_arch_vm_ioctl(filp, ioctl, arg);
-	}
-out:
-	return r;
-}
-
-static int kvm_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	struct kvm *kvm = vma->vm_file->private_data;
-	struct page *page;
-
-	if (!kvm_is_visible_gfn(kvm, vmf->pgoff))
-		return VM_FAULT_SIGBUS;
-	/* current->mm->mmap_sem is already held so call lockless version */
-	page = __gfn_to_page(kvm, vmf->pgoff);
-	if (is_error_page(page)) {
-		kvm_release_page_clean(page);
-		return VM_FAULT_SIGBUS;
-	}
-	vmf->page = page;
-	return 0;
-}
-
-static struct vm_operations_struct kvm_vm_vm_ops = {
-	.fault = kvm_vm_fault,
-};
-
-static int kvm_vm_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	vma->vm_ops = &kvm_vm_vm_ops;
-	return 0;
-}
-
-static struct file_operations kvm_vm_fops = {
-	.release        = kvm_vm_release,
-	.unlocked_ioctl = kvm_vm_ioctl,
-	.compat_ioctl   = kvm_vm_ioctl,
-	.mmap           = kvm_vm_mmap,
-};
-
-static int kvm_dev_ioctl_create_vm(void)
-{
-	int fd, r;
-	struct inode *inode;
-	struct file *file;
-	struct kvm *kvm;
-
-	kvm = kvm_create_vm();
-	if (IS_ERR(kvm))
-		return PTR_ERR(kvm);
-	r = anon_inode_getfd(&fd, &inode, &file, "kvm-vm", &kvm_vm_fops, kvm);
-	if (r) {
-		kvm_destroy_vm(kvm);
-		return r;
-	}
-
-	kvm->filp = file;
-
-	return fd;
-}
-
-static long kvm_dev_ioctl(struct file *filp,
-			  unsigned int ioctl, unsigned long arg)
-{
-	void __user *argp = (void __user *)arg;
-	long r = -EINVAL;
-
-	switch (ioctl) {
-	case KVM_GET_API_VERSION:
-		r = -EINVAL;
-		if (arg)
-			goto out;
-		r = KVM_API_VERSION;
-		break;
-	case KVM_CREATE_VM:
-		r = -EINVAL;
-		if (arg)
-			goto out;
-		r = kvm_dev_ioctl_create_vm();
-		break;
-	case KVM_CHECK_EXTENSION:
-		r = kvm_dev_ioctl_check_extension((long)argp);
-		break;
-	case KVM_GET_VCPU_MMAP_SIZE:
-		r = -EINVAL;
-		if (arg)
-			goto out;
-		r = 2 * PAGE_SIZE;
-		break;
-	default:
-		return kvm_arch_dev_ioctl(filp, ioctl, arg);
-	}
-out:
-	return r;
-}
-
-static struct file_operations kvm_chardev_ops = {
-	.unlocked_ioctl = kvm_dev_ioctl,
-	.compat_ioctl   = kvm_dev_ioctl,
-};
-
-static struct miscdevice kvm_dev = {
-	KVM_MINOR,
-	"kvm",
-	&kvm_chardev_ops,
-};
-
-static void hardware_enable(void *junk)
-{
-	int cpu = raw_smp_processor_id();
-
-	if (cpu_isset(cpu, cpus_hardware_enabled))
-		return;
-	cpu_set(cpu, cpus_hardware_enabled);
-	kvm_arch_hardware_enable(NULL);
-}
-
-static void hardware_disable(void *junk)
-{
-	int cpu = raw_smp_processor_id();
-
-	if (!cpu_isset(cpu, cpus_hardware_enabled))
-		return;
-	cpu_clear(cpu, cpus_hardware_enabled);
-	decache_vcpus_on_cpu(cpu);
-	kvm_arch_hardware_disable(NULL);
-}
-
-static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
-			   void *v)
-{
-	int cpu = (long)v;
-
-	val &= ~CPU_TASKS_FROZEN;
-	switch (val) {
-	case CPU_DYING:
-		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
-		       cpu);
-		hardware_disable(NULL);
-		break;
-	case CPU_UP_CANCELED:
-		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
-		       cpu);
-		smp_call_function_single(cpu, hardware_disable, NULL, 0, 1);
-		break;
-	case CPU_ONLINE:
-		printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
-		       cpu);
-		smp_call_function_single(cpu, hardware_enable, NULL, 0, 1);
-		break;
-	}
-	return NOTIFY_OK;
-}
-
-static int kvm_reboot(struct notifier_block *notifier, unsigned long val,
-		      void *v)
-{
-	if (val == SYS_RESTART) {
-		/*
-		 * Some (well, at least mine) BIOSes hang on reboot if
-		 * in vmx root mode.
-		 */
-		printk(KERN_INFO "kvm: exiting hardware virtualization\n");
-		on_each_cpu(hardware_disable, NULL, 0, 1);
-	}
-	return NOTIFY_OK;
-}
-
-static struct notifier_block kvm_reboot_notifier = {
-	.notifier_call = kvm_reboot,
-	.priority = 0,
-};
-
-void kvm_io_bus_init(struct kvm_io_bus *bus)
-{
-	memset(bus, 0, sizeof(*bus));
-}
-
-void kvm_io_bus_destroy(struct kvm_io_bus *bus)
-{
-	int i;
-
-	for (i = 0; i < bus->dev_count; i++) {
-		struct kvm_io_device *pos = bus->devs[i];
-
-		kvm_iodevice_destructor(pos);
-	}
-}
-
-struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr)
-{
-	int i;
-
-	for (i = 0; i < bus->dev_count; i++) {
-		struct kvm_io_device *pos = bus->devs[i];
-
-		if (pos->in_range(pos, addr))
-			return pos;
-	}
-
-	return NULL;
-}
-
-void kvm_io_bus_register_dev(struct kvm_io_bus *bus, struct kvm_io_device *dev)
-{
-	BUG_ON(bus->dev_count > (NR_IOBUS_DEVS-1));
-
-	bus->devs[bus->dev_count++] = dev;
-}
-
-static struct notifier_block kvm_cpu_notifier = {
-	.notifier_call = kvm_cpu_hotplug,
-	.priority = 20, /* must be > scheduler priority */
-};
-
-static u64 vm_stat_get(void *_offset)
-{
-	unsigned offset = (long)_offset;
-	u64 total = 0;
-	struct kvm *kvm;
-
-	spin_lock(&kvm_lock);
-	list_for_each_entry(kvm, &vm_list, vm_list)
-		total += *(u32 *)((void *)kvm + offset);
-	spin_unlock(&kvm_lock);
-	return total;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(vm_stat_fops, vm_stat_get, NULL, "%llu\n");
-
-static u64 vcpu_stat_get(void *_offset)
-{
-	unsigned offset = (long)_offset;
-	u64 total = 0;
-	struct kvm *kvm;
-	struct kvm_vcpu *vcpu;
-	int i;
-
-	spin_lock(&kvm_lock);
-	list_for_each_entry(kvm, &vm_list, vm_list)
-		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
-			vcpu = kvm->vcpus[i];
-			if (vcpu)
-				total += *(u32 *)((void *)vcpu + offset);
-		}
-	spin_unlock(&kvm_lock);
-	return total;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(vcpu_stat_fops, vcpu_stat_get, NULL, "%llu\n");
-
-static struct file_operations *stat_fops[] = {
-	[KVM_STAT_VCPU] = &vcpu_stat_fops,
-	[KVM_STAT_VM]   = &vm_stat_fops,
-};
-
-static void kvm_init_debug(void)
-{
-	struct kvm_stats_debugfs_item *p;
-
-	debugfs_dir = debugfs_create_dir("kvm", NULL);
-	for (p = debugfs_entries; p->name; ++p)
-		p->dentry = debugfs_create_file(p->name, 0444, debugfs_dir,
-						(void *)(long)p->offset,
-						stat_fops[p->kind]);
-}
-
-static void kvm_exit_debug(void)
-{
-	struct kvm_stats_debugfs_item *p;
-
-	for (p = debugfs_entries; p->name; ++p)
-		debugfs_remove(p->dentry);
-	debugfs_remove(debugfs_dir);
-}
-
-static int kvm_suspend(struct sys_device *dev, pm_message_t state)
-{
-	hardware_disable(NULL);
-	return 0;
-}
-
-static int kvm_resume(struct sys_device *dev)
-{
-	hardware_enable(NULL);
-	return 0;
-}
-
-static struct sysdev_class kvm_sysdev_class = {
-	.name = "kvm",
-	.suspend = kvm_suspend,
-	.resume = kvm_resume,
-};
-
-static struct sys_device kvm_sysdev = {
-	.id = 0,
-	.cls = &kvm_sysdev_class,
-};
-
-struct page *bad_page;
-
-static inline
-struct kvm_vcpu *preempt_notifier_to_vcpu(struct preempt_notifier *pn)
-{
-	return container_of(pn, struct kvm_vcpu, preempt_notifier);
-}
-
-static void kvm_sched_in(struct preempt_notifier *pn, int cpu)
-{
-	struct kvm_vcpu *vcpu = preempt_notifier_to_vcpu(pn);
-
-	kvm_arch_vcpu_load(vcpu, cpu);
-}
-
-static void kvm_sched_out(struct preempt_notifier *pn,
-			  struct task_struct *next)
-{
-	struct kvm_vcpu *vcpu = preempt_notifier_to_vcpu(pn);
-
-	kvm_arch_vcpu_put(vcpu);
-}
-
-int kvm_init(void *opaque, unsigned int vcpu_size,
-		  struct module *module)
-{
-	int r;
-	int cpu;
-
-	kvm_init_debug();
-
-	r = kvm_arch_init(opaque);
-	if (r)
-		goto out_fail;
-
-	bad_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
-
-	if (bad_page == NULL) {
-		r = -ENOMEM;
-		goto out;
-	}
-
-	r = kvm_arch_hardware_setup();
-	if (r < 0)
-		goto out_free_0;
-
-	for_each_online_cpu(cpu) {
-		smp_call_function_single(cpu,
-				kvm_arch_check_processor_compat,
-				&r, 0, 1);
-		if (r < 0)
-			goto out_free_1;
-	}
-
-	on_each_cpu(hardware_enable, NULL, 0, 1);
-	r = register_cpu_notifier(&kvm_cpu_notifier);
-	if (r)
-		goto out_free_2;
-	register_reboot_notifier(&kvm_reboot_notifier);
-
-	r = sysdev_class_register(&kvm_sysdev_class);
-	if (r)
-		goto out_free_3;
-
-	r = sysdev_register(&kvm_sysdev);
-	if (r)
-		goto out_free_4;
-
-	/* A kmem cache lets us meet the alignment requirements of fx_save. */
-	kvm_vcpu_cache = kmem_cache_create("kvm_vcpu", vcpu_size,
-					   __alignof__(struct kvm_vcpu),
-					   0, NULL);
-	if (!kvm_vcpu_cache) {
-		r = -ENOMEM;
-		goto out_free_5;
-	}
-
-	kvm_chardev_ops.owner = module;
-
-	r = misc_register(&kvm_dev);
-	if (r) {
-		printk(KERN_ERR "kvm: misc device register failed\n");
-		goto out_free;
-	}
-
-	kvm_preempt_ops.sched_in = kvm_sched_in;
-	kvm_preempt_ops.sched_out = kvm_sched_out;
-
-	return 0;
-
-out_free:
-	kmem_cache_destroy(kvm_vcpu_cache);
-out_free_5:
-	sysdev_unregister(&kvm_sysdev);
-out_free_4:
-	sysdev_class_unregister(&kvm_sysdev_class);
-out_free_3:
-	unregister_reboot_notifier(&kvm_reboot_notifier);
-	unregister_cpu_notifier(&kvm_cpu_notifier);
-out_free_2:
-	on_each_cpu(hardware_disable, NULL, 0, 1);
-out_free_1:
-	kvm_arch_hardware_unsetup();
-out_free_0:
-	__free_page(bad_page);
-out:
-	kvm_arch_exit();
-	kvm_exit_debug();
-out_fail:
-	return r;
-}
-EXPORT_SYMBOL_GPL(kvm_init);
-
-void kvm_exit(void)
-{
-	misc_deregister(&kvm_dev);
-	kmem_cache_destroy(kvm_vcpu_cache);
-	sysdev_unregister(&kvm_sysdev);
-	sysdev_class_unregister(&kvm_sysdev_class);
-	unregister_reboot_notifier(&kvm_reboot_notifier);
-	unregister_cpu_notifier(&kvm_cpu_notifier);
-	on_each_cpu(hardware_disable, NULL, 0, 1);
-	kvm_arch_hardware_unsetup();
-	kvm_arch_exit();
-	kvm_exit_debug();
-	__free_page(bad_page);
-}
-EXPORT_SYMBOL_GPL(kvm_exit);
diff --git a/virt/kvm/iodev.h b/virt/kvm/iodev.h
new file mode 100644
index 000000000000..c14e642027b2
--- /dev/null
+++ b/virt/kvm/iodev.h
@@ -0,0 +1,63 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef __KVM_IODEV_H__
+#define __KVM_IODEV_H__
+
+#include <linux/kvm_types.h>
+
+struct kvm_io_device {
+	void (*read)(struct kvm_io_device *this,
+		     gpa_t addr,
+		     int len,
+		     void *val);
+	void (*write)(struct kvm_io_device *this,
+		      gpa_t addr,
+		      int len,
+		      const void *val);
+	int (*in_range)(struct kvm_io_device *this, gpa_t addr);
+	void (*destructor)(struct kvm_io_device *this);
+
+	void             *private;
+};
+
+static inline void kvm_iodevice_read(struct kvm_io_device *dev,
+				     gpa_t addr,
+				     int len,
+				     void *val)
+{
+	dev->read(dev, addr, len, val);
+}
+
+static inline void kvm_iodevice_write(struct kvm_io_device *dev,
+				      gpa_t addr,
+				      int len,
+				      const void *val)
+{
+	dev->write(dev, addr, len, val);
+}
+
+static inline int kvm_iodevice_inrange(struct kvm_io_device *dev, gpa_t addr)
+{
+	return dev->in_range(dev, addr);
+}
+
+static inline void kvm_iodevice_destructor(struct kvm_io_device *dev)
+{
+	if (dev->destructor)
+		dev->destructor(dev);
+}
+
+#endif /* __KVM_IODEV_H__ */
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
new file mode 100644
index 000000000000..4026d7d64296
--- /dev/null
+++ b/virt/kvm/kvm_main.c
@@ -0,0 +1,1393 @@
+/*
+ * Kernel-based Virtual Machine driver for Linux
+ *
+ * This module enables machines with Intel VT-x extensions to run virtual
+ * machines without emulation or binary translation.
+ *
+ * Copyright (C) 2006 Qumranet, Inc.
+ *
+ * Authors:
+ *   Avi Kivity   <avi@qumranet.com>
+ *   Yaniv Kamay  <yaniv@qumranet.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include "iodev.h"
+
+#include <linux/kvm_host.h>
+#include <linux/kvm.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/percpu.h>
+#include <linux/gfp.h>
+#include <linux/mm.h>
+#include <linux/miscdevice.h>
+#include <linux/vmalloc.h>
+#include <linux/reboot.h>
+#include <linux/debugfs.h>
+#include <linux/highmem.h>
+#include <linux/file.h>
+#include <linux/sysdev.h>
+#include <linux/cpu.h>
+#include <linux/sched.h>
+#include <linux/cpumask.h>
+#include <linux/smp.h>
+#include <linux/anon_inodes.h>
+#include <linux/profile.h>
+#include <linux/kvm_para.h>
+#include <linux/pagemap.h>
+#include <linux/mman.h>
+
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+
+MODULE_AUTHOR("Qumranet");
+MODULE_LICENSE("GPL");
+
+DEFINE_SPINLOCK(kvm_lock);
+LIST_HEAD(vm_list);
+
+static cpumask_t cpus_hardware_enabled;
+
+struct kmem_cache *kvm_vcpu_cache;
+EXPORT_SYMBOL_GPL(kvm_vcpu_cache);
+
+static __read_mostly struct preempt_ops kvm_preempt_ops;
+
+static struct dentry *debugfs_dir;
+
+static long kvm_vcpu_ioctl(struct file *file, unsigned int ioctl,
+			   unsigned long arg);
+
+static inline int valid_vcpu(int n)
+{
+	return likely(n >= 0 && n < KVM_MAX_VCPUS);
+}
+
+/*
+ * Switches to specified vcpu, until a matching vcpu_put()
+ */
+void vcpu_load(struct kvm_vcpu *vcpu)
+{
+	int cpu;
+
+	mutex_lock(&vcpu->mutex);
+	cpu = get_cpu();
+	preempt_notifier_register(&vcpu->preempt_notifier);
+	kvm_arch_vcpu_load(vcpu, cpu);
+	put_cpu();
+}
+
+void vcpu_put(struct kvm_vcpu *vcpu)
+{
+	preempt_disable();
+	kvm_arch_vcpu_put(vcpu);
+	preempt_notifier_unregister(&vcpu->preempt_notifier);
+	preempt_enable();
+	mutex_unlock(&vcpu->mutex);
+}
+
+static void ack_flush(void *_completed)
+{
+}
+
+void kvm_flush_remote_tlbs(struct kvm *kvm)
+{
+	int i, cpu;
+	cpumask_t cpus;
+	struct kvm_vcpu *vcpu;
+
+	cpus_clear(cpus);
+	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+		vcpu = kvm->vcpus[i];
+		if (!vcpu)
+			continue;
+		if (test_and_set_bit(KVM_REQ_TLB_FLUSH, &vcpu->requests))
+			continue;
+		cpu = vcpu->cpu;
+		if (cpu != -1 && cpu != raw_smp_processor_id())
+			cpu_set(cpu, cpus);
+	}
+	if (cpus_empty(cpus))
+		return;
+	++kvm->stat.remote_tlb_flush;
+	smp_call_function_mask(cpus, ack_flush, NULL, 1);
+}
+
+int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id)
+{
+	struct page *page;
+	int r;
+
+	mutex_init(&vcpu->mutex);
+	vcpu->cpu = -1;
+	vcpu->kvm = kvm;
+	vcpu->vcpu_id = id;
+	init_waitqueue_head(&vcpu->wq);
+
+	page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+	if (!page) {
+		r = -ENOMEM;
+		goto fail;
+	}
+	vcpu->run = page_address(page);
+
+	r = kvm_arch_vcpu_init(vcpu);
+	if (r < 0)
+		goto fail_free_run;
+	return 0;
+
+fail_free_run:
+	free_page((unsigned long)vcpu->run);
+fail:
+	return r;
+}
+EXPORT_SYMBOL_GPL(kvm_vcpu_init);
+
+void kvm_vcpu_uninit(struct kvm_vcpu *vcpu)
+{
+	kvm_arch_vcpu_uninit(vcpu);
+	free_page((unsigned long)vcpu->run);
+}
+EXPORT_SYMBOL_GPL(kvm_vcpu_uninit);
+
+static struct kvm *kvm_create_vm(void)
+{
+	struct kvm *kvm = kvm_arch_create_vm();
+
+	if (IS_ERR(kvm))
+		goto out;
+
+	kvm->mm = current->mm;
+	atomic_inc(&kvm->mm->mm_count);
+	kvm_io_bus_init(&kvm->pio_bus);
+	mutex_init(&kvm->lock);
+	kvm_io_bus_init(&kvm->mmio_bus);
+	spin_lock(&kvm_lock);
+	list_add(&kvm->vm_list, &vm_list);
+	spin_unlock(&kvm_lock);
+out:
+	return kvm;
+}
+
+/*
+ * Free any memory in @free but not in @dont.
+ */
+static void kvm_free_physmem_slot(struct kvm_memory_slot *free,
+				  struct kvm_memory_slot *dont)
+{
+	if (!dont || free->rmap != dont->rmap)
+		vfree(free->rmap);
+
+	if (!dont || free->dirty_bitmap != dont->dirty_bitmap)
+		vfree(free->dirty_bitmap);
+
+	free->npages = 0;
+	free->dirty_bitmap = NULL;
+	free->rmap = NULL;
+}
+
+void kvm_free_physmem(struct kvm *kvm)
+{
+	int i;
+
+	for (i = 0; i < kvm->nmemslots; ++i)
+		kvm_free_physmem_slot(&kvm->memslots[i], NULL);
+}
+
+static void kvm_destroy_vm(struct kvm *kvm)
+{
+	struct mm_struct *mm = kvm->mm;
+
+	spin_lock(&kvm_lock);
+	list_del(&kvm->vm_list);
+	spin_unlock(&kvm_lock);
+	kvm_io_bus_destroy(&kvm->pio_bus);
+	kvm_io_bus_destroy(&kvm->mmio_bus);
+	kvm_arch_destroy_vm(kvm);
+	mmdrop(mm);
+}
+
+static int kvm_vm_release(struct inode *inode, struct file *filp)
+{
+	struct kvm *kvm = filp->private_data;
+
+	kvm_destroy_vm(kvm);
+	return 0;
+}
+
+/*
+ * Allocate some memory and give it an address in the guest physical address
+ * space.
+ *
+ * Discontiguous memory is allowed, mostly for framebuffers.
+ *
+ * Must be called holding kvm->lock.
+ */
+int __kvm_set_memory_region(struct kvm *kvm,
+			    struct kvm_userspace_memory_region *mem,
+			    int user_alloc)
+{
+	int r;
+	gfn_t base_gfn;
+	unsigned long npages;
+	unsigned long i;
+	struct kvm_memory_slot *memslot;
+	struct kvm_memory_slot old, new;
+
+	r = -EINVAL;
+	/* General sanity checks */
+	if (mem->memory_size & (PAGE_SIZE - 1))
+		goto out;
+	if (mem->guest_phys_addr & (PAGE_SIZE - 1))
+		goto out;
+	if (mem->slot >= KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS)
+		goto out;
+	if (mem->guest_phys_addr + mem->memory_size < mem->guest_phys_addr)
+		goto out;
+
+	memslot = &kvm->memslots[mem->slot];
+	base_gfn = mem->guest_phys_addr >> PAGE_SHIFT;
+	npages = mem->memory_size >> PAGE_SHIFT;
+
+	if (!npages)
+		mem->flags &= ~KVM_MEM_LOG_DIRTY_PAGES;
+
+	new = old = *memslot;
+
+	new.base_gfn = base_gfn;
+	new.npages = npages;
+	new.flags = mem->flags;
+
+	/* Disallow changing a memory slot's size. */
+	r = -EINVAL;
+	if (npages && old.npages && npages != old.npages)
+		goto out_free;
+
+	/* Check for overlaps */
+	r = -EEXIST;
+	for (i = 0; i < KVM_MEMORY_SLOTS; ++i) {
+		struct kvm_memory_slot *s = &kvm->memslots[i];
+
+		if (s == memslot)
+			continue;
+		if (!((base_gfn + npages <= s->base_gfn) ||
+		      (base_gfn >= s->base_gfn + s->npages)))
+			goto out_free;
+	}
+
+	/* Free page dirty bitmap if unneeded */
+	if (!(new.flags & KVM_MEM_LOG_DIRTY_PAGES))
+		new.dirty_bitmap = NULL;
+
+	r = -ENOMEM;
+
+	/* Allocate if a slot is being created */
+	if (npages && !new.rmap) {
+		new.rmap = vmalloc(npages * sizeof(struct page *));
+
+		if (!new.rmap)
+			goto out_free;
+
+		memset(new.rmap, 0, npages * sizeof(*new.rmap));
+
+		new.user_alloc = user_alloc;
+		new.userspace_addr = mem->userspace_addr;
+	}
+
+	/* Allocate page dirty bitmap if needed */
+	if ((new.flags & KVM_MEM_LOG_DIRTY_PAGES) && !new.dirty_bitmap) {
+		unsigned dirty_bytes = ALIGN(npages, BITS_PER_LONG) / 8;
+
+		new.dirty_bitmap = vmalloc(dirty_bytes);
+		if (!new.dirty_bitmap)
+			goto out_free;
+		memset(new.dirty_bitmap, 0, dirty_bytes);
+	}
+
+	if (mem->slot >= kvm->nmemslots)
+		kvm->nmemslots = mem->slot + 1;
+
+	*memslot = new;
+
+	r = kvm_arch_set_memory_region(kvm, mem, old, user_alloc);
+	if (r) {
+		*memslot = old;
+		goto out_free;
+	}
+
+	kvm_free_physmem_slot(&old, &new);
+	return 0;
+
+out_free:
+	kvm_free_physmem_slot(&new, &old);
+out:
+	return r;
+
+}
+EXPORT_SYMBOL_GPL(__kvm_set_memory_region);
+
+int kvm_set_memory_region(struct kvm *kvm,
+			  struct kvm_userspace_memory_region *mem,
+			  int user_alloc)
+{
+	int r;
+
+	mutex_lock(&kvm->lock);
+	r = __kvm_set_memory_region(kvm, mem, user_alloc);
+	mutex_unlock(&kvm->lock);
+	return r;
+}
+EXPORT_SYMBOL_GPL(kvm_set_memory_region);
+
+int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
+				   struct
+				   kvm_userspace_memory_region *mem,
+				   int user_alloc)
+{
+	if (mem->slot >= KVM_MEMORY_SLOTS)
+		return -EINVAL;
+	return kvm_set_memory_region(kvm, mem, user_alloc);
+}
+
+int kvm_get_dirty_log(struct kvm *kvm,
+			struct kvm_dirty_log *log, int *is_dirty)
+{
+	struct kvm_memory_slot *memslot;
+	int r, i;
+	int n;
+	unsigned long any = 0;
+
+	r = -EINVAL;
+	if (log->slot >= KVM_MEMORY_SLOTS)
+		goto out;
+
+	memslot = &kvm->memslots[log->slot];
+	r = -ENOENT;
+	if (!memslot->dirty_bitmap)
+		goto out;
+
+	n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
+
+	for (i = 0; !any && i < n/sizeof(long); ++i)
+		any = memslot->dirty_bitmap[i];
+
+	r = -EFAULT;
+	if (copy_to_user(log->dirty_bitmap, memslot->dirty_bitmap, n))
+		goto out;
+
+	if (any)
+		*is_dirty = 1;
+
+	r = 0;
+out:
+	return r;
+}
+
+int is_error_page(struct page *page)
+{
+	return page == bad_page;
+}
+EXPORT_SYMBOL_GPL(is_error_page);
+
+static inline unsigned long bad_hva(void)
+{
+	return PAGE_OFFSET;
+}
+
+int kvm_is_error_hva(unsigned long addr)
+{
+	return addr == bad_hva();
+}
+EXPORT_SYMBOL_GPL(kvm_is_error_hva);
+
+static struct kvm_memory_slot *__gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
+{
+	int i;
+
+	for (i = 0; i < kvm->nmemslots; ++i) {
+		struct kvm_memory_slot *memslot = &kvm->memslots[i];
+
+		if (gfn >= memslot->base_gfn
+		    && gfn < memslot->base_gfn + memslot->npages)
+			return memslot;
+	}
+	return NULL;
+}
+
+struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
+{
+	gfn = unalias_gfn(kvm, gfn);
+	return __gfn_to_memslot(kvm, gfn);
+}
+
+int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn)
+{
+	int i;
+
+	gfn = unalias_gfn(kvm, gfn);
+	for (i = 0; i < KVM_MEMORY_SLOTS; ++i) {
+		struct kvm_memory_slot *memslot = &kvm->memslots[i];
+
+		if (gfn >= memslot->base_gfn
+		    && gfn < memslot->base_gfn + memslot->npages)
+			return 1;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(kvm_is_visible_gfn);
+
+static unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn)
+{
+	struct kvm_memory_slot *slot;
+
+	gfn = unalias_gfn(kvm, gfn);
+	slot = __gfn_to_memslot(kvm, gfn);
+	if (!slot)
+		return bad_hva();
+	return (slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE);
+}
+
+/*
+ * Requires current->mm->mmap_sem to be held
+ */
+static struct page *__gfn_to_page(struct kvm *kvm, gfn_t gfn)
+{
+	struct page *page[1];
+	unsigned long addr;
+	int npages;
+
+	might_sleep();
+
+	addr = gfn_to_hva(kvm, gfn);
+	if (kvm_is_error_hva(addr)) {
+		get_page(bad_page);
+		return bad_page;
+	}
+
+	npages = get_user_pages(current, current->mm, addr, 1, 1, 1, page,
+				NULL);
+
+	if (npages != 1) {
+		get_page(bad_page);
+		return bad_page;
+	}
+
+	return page[0];
+}
+
+struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn)
+{
+	struct page *page;
+
+	down_read(&current->mm->mmap_sem);
+	page = __gfn_to_page(kvm, gfn);
+	up_read(&current->mm->mmap_sem);
+
+	return page;
+}
+
+EXPORT_SYMBOL_GPL(gfn_to_page);
+
+void kvm_release_page_clean(struct page *page)
+{
+	put_page(page);
+}
+EXPORT_SYMBOL_GPL(kvm_release_page_clean);
+
+void kvm_release_page_dirty(struct page *page)
+{
+	if (!PageReserved(page))
+		SetPageDirty(page);
+	put_page(page);
+}
+EXPORT_SYMBOL_GPL(kvm_release_page_dirty);
+
+static int next_segment(unsigned long len, int offset)
+{
+	if (len > PAGE_SIZE - offset)
+		return PAGE_SIZE - offset;
+	else
+		return len;
+}
+
+int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
+			int len)
+{
+	int r;
+	unsigned long addr;
+
+	addr = gfn_to_hva(kvm, gfn);
+	if (kvm_is_error_hva(addr))
+		return -EFAULT;
+	r = copy_from_user(data, (void __user *)addr + offset, len);
+	if (r)
+		return -EFAULT;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(kvm_read_guest_page);
+
+int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len)
+{
+	gfn_t gfn = gpa >> PAGE_SHIFT;
+	int seg;
+	int offset = offset_in_page(gpa);
+	int ret;
+
+	while ((seg = next_segment(len, offset)) != 0) {
+		ret = kvm_read_guest_page(kvm, gfn, data, offset, seg);
+		if (ret < 0)
+			return ret;
+		offset = 0;
+		len -= seg;
+		data += seg;
+		++gfn;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(kvm_read_guest);
+
+int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
+			 int offset, int len)
+{
+	int r;
+	unsigned long addr;
+
+	addr = gfn_to_hva(kvm, gfn);
+	if (kvm_is_error_hva(addr))
+		return -EFAULT;
+	r = copy_to_user((void __user *)addr + offset, data, len);
+	if (r)
+		return -EFAULT;
+	mark_page_dirty(kvm, gfn);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(kvm_write_guest_page);
+
+int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
+		    unsigned long len)
+{
+	gfn_t gfn = gpa >> PAGE_SHIFT;
+	int seg;
+	int offset = offset_in_page(gpa);
+	int ret;
+
+	while ((seg = next_segment(len, offset)) != 0) {
+		ret = kvm_write_guest_page(kvm, gfn, data, offset, seg);
+		if (ret < 0)
+			return ret;
+		offset = 0;
+		len -= seg;
+		data += seg;
+		++gfn;
+	}
+	return 0;
+}
+
+int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len)
+{
+	return kvm_write_guest_page(kvm, gfn, empty_zero_page, offset, len);
+}
+EXPORT_SYMBOL_GPL(kvm_clear_guest_page);
+
+int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len)
+{
+	gfn_t gfn = gpa >> PAGE_SHIFT;
+	int seg;
+	int offset = offset_in_page(gpa);
+	int ret;
+
+        while ((seg = next_segment(len, offset)) != 0) {
+		ret = kvm_clear_guest_page(kvm, gfn, offset, seg);
+		if (ret < 0)
+			return ret;
+		offset = 0;
+		len -= seg;
+		++gfn;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(kvm_clear_guest);
+
+void mark_page_dirty(struct kvm *kvm, gfn_t gfn)
+{
+	struct kvm_memory_slot *memslot;
+
+	gfn = unalias_gfn(kvm, gfn);
+	memslot = __gfn_to_memslot(kvm, gfn);
+	if (memslot && memslot->dirty_bitmap) {
+		unsigned long rel_gfn = gfn - memslot->base_gfn;
+
+		/* avoid RMW */
+		if (!test_bit(rel_gfn, memslot->dirty_bitmap))
+			set_bit(rel_gfn, memslot->dirty_bitmap);
+	}
+}
+
+/*
+ * The vCPU has executed a HLT instruction with in-kernel mode enabled.
+ */
+void kvm_vcpu_block(struct kvm_vcpu *vcpu)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	add_wait_queue(&vcpu->wq, &wait);
+
+	/*
+	 * We will block until either an interrupt or a signal wakes us up
+	 */
+	while (!kvm_cpu_has_interrupt(vcpu)
+	       && !signal_pending(current)
+	       && !kvm_arch_vcpu_runnable(vcpu)) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		vcpu_put(vcpu);
+		schedule();
+		vcpu_load(vcpu);
+	}
+
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(&vcpu->wq, &wait);
+}
+
+void kvm_resched(struct kvm_vcpu *vcpu)
+{
+	if (!need_resched())
+		return;
+	cond_resched();
+}
+EXPORT_SYMBOL_GPL(kvm_resched);
+
+static int kvm_vcpu_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct kvm_vcpu *vcpu = vma->vm_file->private_data;
+	struct page *page;
+
+	if (vmf->pgoff == 0)
+		page = virt_to_page(vcpu->run);
+	else if (vmf->pgoff == KVM_PIO_PAGE_OFFSET)
+		page = virt_to_page(vcpu->arch.pio_data);
+	else
+		return VM_FAULT_SIGBUS;
+	get_page(page);
+	vmf->page = page;
+	return 0;
+}
+
+static struct vm_operations_struct kvm_vcpu_vm_ops = {
+	.fault = kvm_vcpu_fault,
+};
+
+static int kvm_vcpu_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	vma->vm_ops = &kvm_vcpu_vm_ops;
+	return 0;
+}
+
+static int kvm_vcpu_release(struct inode *inode, struct file *filp)
+{
+	struct kvm_vcpu *vcpu = filp->private_data;
+
+	fput(vcpu->kvm->filp);
+	return 0;
+}
+
+static struct file_operations kvm_vcpu_fops = {
+	.release        = kvm_vcpu_release,
+	.unlocked_ioctl = kvm_vcpu_ioctl,
+	.compat_ioctl   = kvm_vcpu_ioctl,
+	.mmap           = kvm_vcpu_mmap,
+};
+
+/*
+ * Allocates an inode for the vcpu.
+ */
+static int create_vcpu_fd(struct kvm_vcpu *vcpu)
+{
+	int fd, r;
+	struct inode *inode;
+	struct file *file;
+
+	r = anon_inode_getfd(&fd, &inode, &file,
+			     "kvm-vcpu", &kvm_vcpu_fops, vcpu);
+	if (r)
+		return r;
+	atomic_inc(&vcpu->kvm->filp->f_count);
+	return fd;
+}
+
+/*
+ * Creates some virtual cpus.  Good luck creating more than one.
+ */
+static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, int n)
+{
+	int r;
+	struct kvm_vcpu *vcpu;
+
+	if (!valid_vcpu(n))
+		return -EINVAL;
+
+	vcpu = kvm_arch_vcpu_create(kvm, n);
+	if (IS_ERR(vcpu))
+		return PTR_ERR(vcpu);
+
+	preempt_notifier_init(&vcpu->preempt_notifier, &kvm_preempt_ops);
+
+	r = kvm_arch_vcpu_setup(vcpu);
+	if (r)
+		goto vcpu_destroy;
+
+	mutex_lock(&kvm->lock);
+	if (kvm->vcpus[n]) {
+		r = -EEXIST;
+		mutex_unlock(&kvm->lock);
+		goto vcpu_destroy;
+	}
+	kvm->vcpus[n] = vcpu;
+	mutex_unlock(&kvm->lock);
+
+	/* Now it's all set up, let userspace reach it */
+	r = create_vcpu_fd(vcpu);
+	if (r < 0)
+		goto unlink;
+	return r;
+
+unlink:
+	mutex_lock(&kvm->lock);
+	kvm->vcpus[n] = NULL;
+	mutex_unlock(&kvm->lock);
+vcpu_destroy:
+	kvm_arch_vcpu_destroy(vcpu);
+	return r;
+}
+
+static int kvm_vcpu_ioctl_set_sigmask(struct kvm_vcpu *vcpu, sigset_t *sigset)
+{
+	if (sigset) {
+		sigdelsetmask(sigset, sigmask(SIGKILL)|sigmask(SIGSTOP));
+		vcpu->sigset_active = 1;
+		vcpu->sigset = *sigset;
+	} else
+		vcpu->sigset_active = 0;
+	return 0;
+}
+
+static long kvm_vcpu_ioctl(struct file *filp,
+			   unsigned int ioctl, unsigned long arg)
+{
+	struct kvm_vcpu *vcpu = filp->private_data;
+	void __user *argp = (void __user *)arg;
+	int r;
+
+	if (vcpu->kvm->mm != current->mm)
+		return -EIO;
+	switch (ioctl) {
+	case KVM_RUN:
+		r = -EINVAL;
+		if (arg)
+			goto out;
+		r = kvm_arch_vcpu_ioctl_run(vcpu, vcpu->run);
+		break;
+	case KVM_GET_REGS: {
+		struct kvm_regs kvm_regs;
+
+		memset(&kvm_regs, 0, sizeof kvm_regs);
+		r = kvm_arch_vcpu_ioctl_get_regs(vcpu, &kvm_regs);
+		if (r)
+			goto out;
+		r = -EFAULT;
+		if (copy_to_user(argp, &kvm_regs, sizeof kvm_regs))
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_SET_REGS: {
+		struct kvm_regs kvm_regs;
+
+		r = -EFAULT;
+		if (copy_from_user(&kvm_regs, argp, sizeof kvm_regs))
+			goto out;
+		r = kvm_arch_vcpu_ioctl_set_regs(vcpu, &kvm_regs);
+		if (r)
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_GET_SREGS: {
+		struct kvm_sregs kvm_sregs;
+
+		memset(&kvm_sregs, 0, sizeof kvm_sregs);
+		r = kvm_arch_vcpu_ioctl_get_sregs(vcpu, &kvm_sregs);
+		if (r)
+			goto out;
+		r = -EFAULT;
+		if (copy_to_user(argp, &kvm_sregs, sizeof kvm_sregs))
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_SET_SREGS: {
+		struct kvm_sregs kvm_sregs;
+
+		r = -EFAULT;
+		if (copy_from_user(&kvm_sregs, argp, sizeof kvm_sregs))
+			goto out;
+		r = kvm_arch_vcpu_ioctl_set_sregs(vcpu, &kvm_sregs);
+		if (r)
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_TRANSLATE: {
+		struct kvm_translation tr;
+
+		r = -EFAULT;
+		if (copy_from_user(&tr, argp, sizeof tr))
+			goto out;
+		r = kvm_arch_vcpu_ioctl_translate(vcpu, &tr);
+		if (r)
+			goto out;
+		r = -EFAULT;
+		if (copy_to_user(argp, &tr, sizeof tr))
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_DEBUG_GUEST: {
+		struct kvm_debug_guest dbg;
+
+		r = -EFAULT;
+		if (copy_from_user(&dbg, argp, sizeof dbg))
+			goto out;
+		r = kvm_arch_vcpu_ioctl_debug_guest(vcpu, &dbg);
+		if (r)
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_SET_SIGNAL_MASK: {
+		struct kvm_signal_mask __user *sigmask_arg = argp;
+		struct kvm_signal_mask kvm_sigmask;
+		sigset_t sigset, *p;
+
+		p = NULL;
+		if (argp) {
+			r = -EFAULT;
+			if (copy_from_user(&kvm_sigmask, argp,
+					   sizeof kvm_sigmask))
+				goto out;
+			r = -EINVAL;
+			if (kvm_sigmask.len != sizeof sigset)
+				goto out;
+			r = -EFAULT;
+			if (copy_from_user(&sigset, sigmask_arg->sigset,
+					   sizeof sigset))
+				goto out;
+			p = &sigset;
+		}
+		r = kvm_vcpu_ioctl_set_sigmask(vcpu, &sigset);
+		break;
+	}
+	case KVM_GET_FPU: {
+		struct kvm_fpu fpu;
+
+		memset(&fpu, 0, sizeof fpu);
+		r = kvm_arch_vcpu_ioctl_get_fpu(vcpu, &fpu);
+		if (r)
+			goto out;
+		r = -EFAULT;
+		if (copy_to_user(argp, &fpu, sizeof fpu))
+			goto out;
+		r = 0;
+		break;
+	}
+	case KVM_SET_FPU: {
+		struct kvm_fpu fpu;
+
+		r = -EFAULT;
+		if (copy_from_user(&fpu, argp, sizeof fpu))
+			goto out;
+		r = kvm_arch_vcpu_ioctl_set_fpu(vcpu, &fpu);
+		if (r)
+			goto out;
+		r = 0;
+		break;
+	}
+	default:
+		r = kvm_arch_vcpu_ioctl(filp, ioctl, arg);
+	}
+out:
+	return r;
+}
+
+static long kvm_vm_ioctl(struct file *filp,
+			   unsigned int ioctl, unsigned long arg)
+{
+	struct kvm *kvm = filp->private_data;
+	void __user *argp = (void __user *)arg;
+	int r;
+
+	if (kvm->mm != current->mm)
+		return -EIO;
+	switch (ioctl) {
+	case KVM_CREATE_VCPU:
+		r = kvm_vm_ioctl_create_vcpu(kvm, arg);
+		if (r < 0)
+			goto out;
+		break;
+	case KVM_SET_USER_MEMORY_REGION: {
+		struct kvm_userspace_memory_region kvm_userspace_mem;
+
+		r = -EFAULT;
+		if (copy_from_user(&kvm_userspace_mem, argp,
+						sizeof kvm_userspace_mem))
+			goto out;
+
+		r = kvm_vm_ioctl_set_memory_region(kvm, &kvm_userspace_mem, 1);
+		if (r)
+			goto out;
+		break;
+	}
+	case KVM_GET_DIRTY_LOG: {
+		struct kvm_dirty_log log;
+
+		r = -EFAULT;
+		if (copy_from_user(&log, argp, sizeof log))
+			goto out;
+		r = kvm_vm_ioctl_get_dirty_log(kvm, &log);
+		if (r)
+			goto out;
+		break;
+	}
+	default:
+		r = kvm_arch_vm_ioctl(filp, ioctl, arg);
+	}
+out:
+	return r;
+}
+
+static int kvm_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct kvm *kvm = vma->vm_file->private_data;
+	struct page *page;
+
+	if (!kvm_is_visible_gfn(kvm, vmf->pgoff))
+		return VM_FAULT_SIGBUS;
+	/* current->mm->mmap_sem is already held so call lockless version */
+	page = __gfn_to_page(kvm, vmf->pgoff);
+	if (is_error_page(page)) {
+		kvm_release_page_clean(page);
+		return VM_FAULT_SIGBUS;
+	}
+	vmf->page = page;
+	return 0;
+}
+
+static struct vm_operations_struct kvm_vm_vm_ops = {
+	.fault = kvm_vm_fault,
+};
+
+static int kvm_vm_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	vma->vm_ops = &kvm_vm_vm_ops;
+	return 0;
+}
+
+static struct file_operations kvm_vm_fops = {
+	.release        = kvm_vm_release,
+	.unlocked_ioctl = kvm_vm_ioctl,
+	.compat_ioctl   = kvm_vm_ioctl,
+	.mmap           = kvm_vm_mmap,
+};
+
+static int kvm_dev_ioctl_create_vm(void)
+{
+	int fd, r;
+	struct inode *inode;
+	struct file *file;
+	struct kvm *kvm;
+
+	kvm = kvm_create_vm();
+	if (IS_ERR(kvm))
+		return PTR_ERR(kvm);
+	r = anon_inode_getfd(&fd, &inode, &file, "kvm-vm", &kvm_vm_fops, kvm);
+	if (r) {
+		kvm_destroy_vm(kvm);
+		return r;
+	}
+
+	kvm->filp = file;
+
+	return fd;
+}
+
+static long kvm_dev_ioctl(struct file *filp,
+			  unsigned int ioctl, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	long r = -EINVAL;
+
+	switch (ioctl) {
+	case KVM_GET_API_VERSION:
+		r = -EINVAL;
+		if (arg)
+			goto out;
+		r = KVM_API_VERSION;
+		break;
+	case KVM_CREATE_VM:
+		r = -EINVAL;
+		if (arg)
+			goto out;
+		r = kvm_dev_ioctl_create_vm();
+		break;
+	case KVM_CHECK_EXTENSION:
+		r = kvm_dev_ioctl_check_extension((long)argp);
+		break;
+	case KVM_GET_VCPU_MMAP_SIZE:
+		r = -EINVAL;
+		if (arg)
+			goto out;
+		r = 2 * PAGE_SIZE;
+		break;
+	default:
+		return kvm_arch_dev_ioctl(filp, ioctl, arg);
+	}
+out:
+	return r;
+}
+
+static struct file_operations kvm_chardev_ops = {
+	.unlocked_ioctl = kvm_dev_ioctl,
+	.compat_ioctl   = kvm_dev_ioctl,
+};
+
+static struct miscdevice kvm_dev = {
+	KVM_MINOR,
+	"kvm",
+	&kvm_chardev_ops,
+};
+
+static void hardware_enable(void *junk)
+{
+	int cpu = raw_smp_processor_id();
+
+	if (cpu_isset(cpu, cpus_hardware_enabled))
+		return;
+	cpu_set(cpu, cpus_hardware_enabled);
+	kvm_arch_hardware_enable(NULL);
+}
+
+static void hardware_disable(void *junk)
+{
+	int cpu = raw_smp_processor_id();
+
+	if (!cpu_isset(cpu, cpus_hardware_enabled))
+		return;
+	cpu_clear(cpu, cpus_hardware_enabled);
+	decache_vcpus_on_cpu(cpu);
+	kvm_arch_hardware_disable(NULL);
+}
+
+static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
+			   void *v)
+{
+	int cpu = (long)v;
+
+	val &= ~CPU_TASKS_FROZEN;
+	switch (val) {
+	case CPU_DYING:
+		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
+		       cpu);
+		hardware_disable(NULL);
+		break;
+	case CPU_UP_CANCELED:
+		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
+		       cpu);
+		smp_call_function_single(cpu, hardware_disable, NULL, 0, 1);
+		break;
+	case CPU_ONLINE:
+		printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
+		       cpu);
+		smp_call_function_single(cpu, hardware_enable, NULL, 0, 1);
+		break;
+	}
+	return NOTIFY_OK;
+}
+
+static int kvm_reboot(struct notifier_block *notifier, unsigned long val,
+		      void *v)
+{
+	if (val == SYS_RESTART) {
+		/*
+		 * Some (well, at least mine) BIOSes hang on reboot if
+		 * in vmx root mode.
+		 */
+		printk(KERN_INFO "kvm: exiting hardware virtualization\n");
+		on_each_cpu(hardware_disable, NULL, 0, 1);
+	}
+	return NOTIFY_OK;
+}
+
+static struct notifier_block kvm_reboot_notifier = {
+	.notifier_call = kvm_reboot,
+	.priority = 0,
+};
+
+void kvm_io_bus_init(struct kvm_io_bus *bus)
+{
+	memset(bus, 0, sizeof(*bus));
+}
+
+void kvm_io_bus_destroy(struct kvm_io_bus *bus)
+{
+	int i;
+
+	for (i = 0; i < bus->dev_count; i++) {
+		struct kvm_io_device *pos = bus->devs[i];
+
+		kvm_iodevice_destructor(pos);
+	}
+}
+
+struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr)
+{
+	int i;
+
+	for (i = 0; i < bus->dev_count; i++) {
+		struct kvm_io_device *pos = bus->devs[i];
+
+		if (pos->in_range(pos, addr))
+			return pos;
+	}
+
+	return NULL;
+}
+
+void kvm_io_bus_register_dev(struct kvm_io_bus *bus, struct kvm_io_device *dev)
+{
+	BUG_ON(bus->dev_count > (NR_IOBUS_DEVS-1));
+
+	bus->devs[bus->dev_count++] = dev;
+}
+
+static struct notifier_block kvm_cpu_notifier = {
+	.notifier_call = kvm_cpu_hotplug,
+	.priority = 20, /* must be > scheduler priority */
+};
+
+static u64 vm_stat_get(void *_offset)
+{
+	unsigned offset = (long)_offset;
+	u64 total = 0;
+	struct kvm *kvm;
+
+	spin_lock(&kvm_lock);
+	list_for_each_entry(kvm, &vm_list, vm_list)
+		total += *(u32 *)((void *)kvm + offset);
+	spin_unlock(&kvm_lock);
+	return total;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(vm_stat_fops, vm_stat_get, NULL, "%llu\n");
+
+static u64 vcpu_stat_get(void *_offset)
+{
+	unsigned offset = (long)_offset;
+	u64 total = 0;
+	struct kvm *kvm;
+	struct kvm_vcpu *vcpu;
+	int i;
+
+	spin_lock(&kvm_lock);
+	list_for_each_entry(kvm, &vm_list, vm_list)
+		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+			vcpu = kvm->vcpus[i];
+			if (vcpu)
+				total += *(u32 *)((void *)vcpu + offset);
+		}
+	spin_unlock(&kvm_lock);
+	return total;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(vcpu_stat_fops, vcpu_stat_get, NULL, "%llu\n");
+
+static struct file_operations *stat_fops[] = {
+	[KVM_STAT_VCPU] = &vcpu_stat_fops,
+	[KVM_STAT_VM]   = &vm_stat_fops,
+};
+
+static void kvm_init_debug(void)
+{
+	struct kvm_stats_debugfs_item *p;
+
+	debugfs_dir = debugfs_create_dir("kvm", NULL);
+	for (p = debugfs_entries; p->name; ++p)
+		p->dentry = debugfs_create_file(p->name, 0444, debugfs_dir,
+						(void *)(long)p->offset,
+						stat_fops[p->kind]);
+}
+
+static void kvm_exit_debug(void)
+{
+	struct kvm_stats_debugfs_item *p;
+
+	for (p = debugfs_entries; p->name; ++p)
+		debugfs_remove(p->dentry);
+	debugfs_remove(debugfs_dir);
+}
+
+static int kvm_suspend(struct sys_device *dev, pm_message_t state)
+{
+	hardware_disable(NULL);
+	return 0;
+}
+
+static int kvm_resume(struct sys_device *dev)
+{
+	hardware_enable(NULL);
+	return 0;
+}
+
+static struct sysdev_class kvm_sysdev_class = {
+	.name = "kvm",
+	.suspend = kvm_suspend,
+	.resume = kvm_resume,
+};
+
+static struct sys_device kvm_sysdev = {
+	.id = 0,
+	.cls = &kvm_sysdev_class,
+};
+
+struct page *bad_page;
+
+static inline
+struct kvm_vcpu *preempt_notifier_to_vcpu(struct preempt_notifier *pn)
+{
+	return container_of(pn, struct kvm_vcpu, preempt_notifier);
+}
+
+static void kvm_sched_in(struct preempt_notifier *pn, int cpu)
+{
+	struct kvm_vcpu *vcpu = preempt_notifier_to_vcpu(pn);
+
+	kvm_arch_vcpu_load(vcpu, cpu);
+}
+
+static void kvm_sched_out(struct preempt_notifier *pn,
+			  struct task_struct *next)
+{
+	struct kvm_vcpu *vcpu = preempt_notifier_to_vcpu(pn);
+
+	kvm_arch_vcpu_put(vcpu);
+}
+
+int kvm_init(void *opaque, unsigned int vcpu_size,
+		  struct module *module)
+{
+	int r;
+	int cpu;
+
+	kvm_init_debug();
+
+	r = kvm_arch_init(opaque);
+	if (r)
+		goto out_fail;
+
+	bad_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+
+	if (bad_page == NULL) {
+		r = -ENOMEM;
+		goto out;
+	}
+
+	r = kvm_arch_hardware_setup();
+	if (r < 0)
+		goto out_free_0;
+
+	for_each_online_cpu(cpu) {
+		smp_call_function_single(cpu,
+				kvm_arch_check_processor_compat,
+				&r, 0, 1);
+		if (r < 0)
+			goto out_free_1;
+	}
+
+	on_each_cpu(hardware_enable, NULL, 0, 1);
+	r = register_cpu_notifier(&kvm_cpu_notifier);
+	if (r)
+		goto out_free_2;
+	register_reboot_notifier(&kvm_reboot_notifier);
+
+	r = sysdev_class_register(&kvm_sysdev_class);
+	if (r)
+		goto out_free_3;
+
+	r = sysdev_register(&kvm_sysdev);
+	if (r)
+		goto out_free_4;
+
+	/* A kmem cache lets us meet the alignment requirements of fx_save. */
+	kvm_vcpu_cache = kmem_cache_create("kvm_vcpu", vcpu_size,
+					   __alignof__(struct kvm_vcpu),
+					   0, NULL);
+	if (!kvm_vcpu_cache) {
+		r = -ENOMEM;
+		goto out_free_5;
+	}
+
+	kvm_chardev_ops.owner = module;
+
+	r = misc_register(&kvm_dev);
+	if (r) {
+		printk(KERN_ERR "kvm: misc device register failed\n");
+		goto out_free;
+	}
+
+	kvm_preempt_ops.sched_in = kvm_sched_in;
+	kvm_preempt_ops.sched_out = kvm_sched_out;
+
+	return 0;
+
+out_free:
+	kmem_cache_destroy(kvm_vcpu_cache);
+out_free_5:
+	sysdev_unregister(&kvm_sysdev);
+out_free_4:
+	sysdev_class_unregister(&kvm_sysdev_class);
+out_free_3:
+	unregister_reboot_notifier(&kvm_reboot_notifier);
+	unregister_cpu_notifier(&kvm_cpu_notifier);
+out_free_2:
+	on_each_cpu(hardware_disable, NULL, 0, 1);
+out_free_1:
+	kvm_arch_hardware_unsetup();
+out_free_0:
+	__free_page(bad_page);
+out:
+	kvm_arch_exit();
+	kvm_exit_debug();
+out_fail:
+	return r;
+}
+EXPORT_SYMBOL_GPL(kvm_init);
+
+void kvm_exit(void)
+{
+	misc_deregister(&kvm_dev);
+	kmem_cache_destroy(kvm_vcpu_cache);
+	sysdev_unregister(&kvm_sysdev);
+	sysdev_class_unregister(&kvm_sysdev_class);
+	unregister_reboot_notifier(&kvm_reboot_notifier);
+	unregister_cpu_notifier(&kvm_cpu_notifier);
+	on_each_cpu(hardware_disable, NULL, 0, 1);
+	kvm_arch_hardware_unsetup();
+	kvm_arch_exit();
+	kvm_exit_debug();
+	__free_page(bad_page);
+}
+EXPORT_SYMBOL_GPL(kvm_exit);
-- 
cgit v1.2.3-59-g8ed1b


From 82470196fa346f50ab4071935597017de33c9ee3 Mon Sep 17 00:00:00 2001
From: Zhang Xiantao <xiantao.zhang@intel.com>
Date: Mon, 17 Dec 2007 13:59:56 +0800
Subject: KVM: Move irqchip declarations into new ioapic.h and lapic.h

This allows reuse of ioapic in ia64.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/ioapic.c |   5 ++-
 arch/x86/kvm/ioapic.h |  95 +++++++++++++++++++++++++++++++++++++++++
 arch/x86/kvm/irq.h    | 115 +++-----------------------------------------------
 arch/x86/kvm/lapic.h  |  44 +++++++++++++++++++
 4 files changed, 148 insertions(+), 111 deletions(-)
 create mode 100644 arch/x86/kvm/ioapic.h
 create mode 100644 arch/x86/kvm/lapic.h

(limited to 'arch')

diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
index 72f12f75495d..40cd53ed4abd 100644
--- a/arch/x86/kvm/ioapic.c
+++ b/arch/x86/kvm/ioapic.c
@@ -36,7 +36,10 @@
 #include <asm/processor.h>
 #include <asm/page.h>
 #include <asm/current.h>
-#include "irq.h"
+
+#include "ioapic.h"
+#include "lapic.h"
+
 #if 0
 #define ioapic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg)
 #else
diff --git a/arch/x86/kvm/ioapic.h b/arch/x86/kvm/ioapic.h
new file mode 100644
index 000000000000..7f16675fe783
--- /dev/null
+++ b/arch/x86/kvm/ioapic.h
@@ -0,0 +1,95 @@
+#ifndef __KVM_IO_APIC_H
+#define __KVM_IO_APIC_H
+
+#include <linux/kvm_host.h>
+
+#include "iodev.h"
+
+struct kvm;
+struct kvm_vcpu;
+
+#define IOAPIC_NUM_PINS  KVM_IOAPIC_NUM_PINS
+#define IOAPIC_VERSION_ID 0x11	/* IOAPIC version */
+#define IOAPIC_EDGE_TRIG  0
+#define IOAPIC_LEVEL_TRIG 1
+
+#define IOAPIC_DEFAULT_BASE_ADDRESS  0xfec00000
+#define IOAPIC_MEM_LENGTH            0x100
+
+/* Direct registers. */
+#define IOAPIC_REG_SELECT  0x00
+#define IOAPIC_REG_WINDOW  0x10
+#define IOAPIC_REG_EOI     0x40	/* IA64 IOSAPIC only */
+
+/* Indirect registers. */
+#define IOAPIC_REG_APIC_ID 0x00	/* x86 IOAPIC only */
+#define IOAPIC_REG_VERSION 0x01
+#define IOAPIC_REG_ARB_ID  0x02	/* x86 IOAPIC only */
+
+/*ioapic delivery mode*/
+#define	IOAPIC_FIXED			0x0
+#define	IOAPIC_LOWEST_PRIORITY		0x1
+#define	IOAPIC_PMI			0x2
+#define	IOAPIC_NMI			0x4
+#define	IOAPIC_INIT			0x5
+#define	IOAPIC_EXTINT			0x7
+
+struct kvm_ioapic {
+	u64 base_address;
+	u32 ioregsel;
+	u32 id;
+	u32 irr;
+	u32 pad;
+	union ioapic_redir_entry {
+		u64 bits;
+		struct {
+			u8 vector;
+			u8 delivery_mode:3;
+			u8 dest_mode:1;
+			u8 delivery_status:1;
+			u8 polarity:1;
+			u8 remote_irr:1;
+			u8 trig_mode:1;
+			u8 mask:1;
+			u8 reserve:7;
+			u8 reserved[4];
+			u8 dest_id;
+		} fields;
+	} redirtbl[IOAPIC_NUM_PINS];
+	struct kvm_io_device dev;
+	struct kvm *kvm;
+};
+
+#ifdef DEBUG
+#define ASSERT(x)  							\
+do {									\
+	if (!(x)) {							\
+		printk(KERN_EMERG "assertion failed %s: %d: %s\n",	\
+		       __FILE__, __LINE__, #x);				\
+		BUG();							\
+	}								\
+} while (0)
+#else
+#define ASSERT(x) do { } while (0)
+#endif
+
+static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
+{
+	return kvm->arch.vioapic;
+}
+
+#ifdef CONFIG_IA64
+static inline int irqchip_in_kernel(struct kvm *kvm)
+{
+	return 1;
+}
+#endif
+
+struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
+				       unsigned long bitmap);
+void kvm_ioapic_update_eoi(struct kvm *kvm, int vector);
+int kvm_ioapic_init(struct kvm *kvm);
+void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
+void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
+
+#endif
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index 6316638eec9f..c376b5b41bba 100644
--- a/arch/x86/kvm/irq.h
+++ b/arch/x86/kvm/irq.h
@@ -25,7 +25,10 @@
 #include <linux/mm_types.h>
 #include <linux/hrtimer.h>
 #include <linux/kvm_host.h>
+
 #include "iodev.h"
+#include "ioapic.h"
+#include "lapic.h"
 
 struct kvm;
 struct kvm_vcpu;
@@ -65,131 +68,23 @@ void kvm_pic_set_irq(void *opaque, int irq, int level);
 int kvm_pic_read_irq(struct kvm_pic *s);
 void kvm_pic_update_irq(struct kvm_pic *s);
 
-#define IOAPIC_NUM_PINS  KVM_IOAPIC_NUM_PINS
-#define IOAPIC_VERSION_ID 0x11	/* IOAPIC version */
-#define IOAPIC_EDGE_TRIG  0
-#define IOAPIC_LEVEL_TRIG 1
-
-#define IOAPIC_DEFAULT_BASE_ADDRESS  0xfec00000
-#define IOAPIC_MEM_LENGTH            0x100
-
-/* Direct registers. */
-#define IOAPIC_REG_SELECT  0x00
-#define IOAPIC_REG_WINDOW  0x10
-#define IOAPIC_REG_EOI     0x40	/* IA64 IOSAPIC only */
-
-/* Indirect registers. */
-#define IOAPIC_REG_APIC_ID 0x00	/* x86 IOAPIC only */
-#define IOAPIC_REG_VERSION 0x01
-#define IOAPIC_REG_ARB_ID  0x02	/* x86 IOAPIC only */
-
-/*ioapic delivery mode*/
-#define	IOAPIC_FIXED			0x0
-#define	IOAPIC_LOWEST_PRIORITY		0x1
-#define	IOAPIC_PMI			0x2
-#define	IOAPIC_NMI			0x4
-#define	IOAPIC_INIT			0x5
-#define	IOAPIC_EXTINT			0x7
-
-struct kvm_ioapic {
-	u64 base_address;
-	u32 ioregsel;
-	u32 id;
-	u32 irr;
-	u32 pad;
-	union ioapic_redir_entry {
-		u64 bits;
-		struct {
-			u8 vector;
-			u8 delivery_mode:3;
-			u8 dest_mode:1;
-			u8 delivery_status:1;
-			u8 polarity:1;
-			u8 remote_irr:1;
-			u8 trig_mode:1;
-			u8 mask:1;
-			u8 reserve:7;
-			u8 reserved[4];
-			u8 dest_id;
-		} fields;
-	} redirtbl[IOAPIC_NUM_PINS];
-	struct kvm_io_device dev;
-	struct kvm *kvm;
-};
-
-struct kvm_lapic {
-	unsigned long base_address;
-	struct kvm_io_device dev;
-	struct {
-		atomic_t pending;
-		s64 period;	/* unit: ns */
-		u32 divide_count;
-		ktime_t last_update;
-		struct hrtimer dev;
-	} timer;
-	struct kvm_vcpu *vcpu;
-	struct page *regs_page;
-	void *regs;
-};
-
-#ifdef DEBUG
-#define ASSERT(x)  							\
-do {									\
-	if (!(x)) {							\
-		printk(KERN_EMERG "assertion failed %s: %d: %s\n",	\
-		       __FILE__, __LINE__, #x);				\
-		BUG();							\
-	}								\
-} while (0)
-#else
-#define ASSERT(x) do { } while (0)
-#endif
-
 static inline struct kvm_pic *pic_irqchip(struct kvm *kvm)
 {
 	return kvm->arch.vpic;
 }
 
-static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
-{
-	return kvm->arch.vioapic;
-}
-
 static inline int irqchip_in_kernel(struct kvm *kvm)
 {
 	return pic_irqchip(kvm) != NULL;
 }
 
-void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
-int kvm_apic_has_interrupt(struct kvm_vcpu *vcpu);
-int kvm_apic_accept_pic_intr(struct kvm_vcpu *vcpu);
-int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu);
-int kvm_create_lapic(struct kvm_vcpu *vcpu);
-void kvm_lapic_reset(struct kvm_vcpu *vcpu);
 void kvm_pic_reset(struct kvm_kpic_state *s);
-void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
-void kvm_free_lapic(struct kvm_vcpu *vcpu);
-u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu);
-void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8);
-void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value);
 
-struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
-				       unsigned long bitmap);
-u64 kvm_get_apic_base(struct kvm_vcpu *vcpu);
-void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data);
-int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest);
-void kvm_ioapic_update_eoi(struct kvm *kvm, int vector);
-int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda);
-int kvm_apic_set_irq(struct kvm_vcpu *vcpu, u8 vec, u8 trig);
-void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu);
-int kvm_ioapic_init(struct kvm *kvm);
-void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
-int kvm_lapic_enabled(struct kvm_vcpu *vcpu);
-int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);
-void kvm_apic_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
 void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
 void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
 void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
 void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu);
 
+void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
+
 #endif
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
new file mode 100644
index 000000000000..447b654aefbb
--- /dev/null
+++ b/arch/x86/kvm/lapic.h
@@ -0,0 +1,44 @@
+#ifndef __KVM_X86_LAPIC_H
+#define __KVM_X86_LAPIC_H
+
+#include "iodev.h"
+
+#include <linux/kvm_host.h>
+
+struct kvm_lapic {
+	unsigned long base_address;
+	struct kvm_io_device dev;
+	struct {
+		atomic_t pending;
+		s64 period;	/* unit: ns */
+		u32 divide_count;
+		ktime_t last_update;
+		struct hrtimer dev;
+	} timer;
+	struct kvm_vcpu *vcpu;
+	struct page *regs_page;
+	void *regs;
+};
+int kvm_create_lapic(struct kvm_vcpu *vcpu);
+void kvm_free_lapic(struct kvm_vcpu *vcpu);
+
+int kvm_apic_has_interrupt(struct kvm_vcpu *vcpu);
+int kvm_apic_accept_pic_intr(struct kvm_vcpu *vcpu);
+int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu);
+void kvm_lapic_reset(struct kvm_vcpu *vcpu);
+u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu);
+void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8);
+void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value);
+
+int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest);
+int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda);
+int kvm_apic_set_irq(struct kvm_vcpu *vcpu, u8 vec, u8 trig);
+
+u64 kvm_get_apic_base(struct kvm_vcpu *vcpu);
+void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data);
+void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu);
+int kvm_lapic_enabled(struct kvm_vcpu *vcpu);
+int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);
+void kvm_apic_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
+
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From 0eb8f4984824b8a811d44963995133f47813330a Mon Sep 17 00:00:00 2001
From: Zhang Xiantao <xiantao.zhang@intel.com>
Date: Mon, 17 Dec 2007 14:16:14 +0800
Subject: KVM: Move ioapic code to common directory.

Move ioapic code to common, since IA64 also needs it.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/Makefile |   7 +-
 arch/x86/kvm/ioapic.c | 403 --------------------------------------------------
 arch/x86/kvm/ioapic.h |  95 ------------
 virt/kvm/ioapic.c     | 403 ++++++++++++++++++++++++++++++++++++++++++++++++++
 virt/kvm/ioapic.h     |  95 ++++++++++++
 5 files changed, 501 insertions(+), 502 deletions(-)
 delete mode 100644 arch/x86/kvm/ioapic.c
 delete mode 100644 arch/x86/kvm/ioapic.h
 create mode 100644 virt/kvm/ioapic.c
 create mode 100644 virt/kvm/ioapic.h

(limited to 'arch')

diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
index af41534af496..ffdd0b310784 100644
--- a/arch/x86/kvm/Makefile
+++ b/arch/x86/kvm/Makefile
@@ -2,12 +2,11 @@
 # Makefile for Kernel-based Virtual Machine module
 #
 
-common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o)
+common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o)
 
-EXTRA_CFLAGS += -I virt/kvm
+EXTRA_CFLAGS += -Ivirt/kvm -Iarch/x86/kvm
 
-kvm-objs := $(common-objs) x86.o mmu.o x86_emulate.o i8259.o irq.o lapic.o \
-	ioapic.o
+kvm-objs := $(common-objs) x86.o mmu.o x86_emulate.o i8259.o irq.o lapic.o
 obj-$(CONFIG_KVM) += kvm.o
 kvm-intel-objs = vmx.o
 obj-$(CONFIG_KVM_INTEL) += kvm-intel.o
diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
deleted file mode 100644
index 40cd53ed4abd..000000000000
--- a/arch/x86/kvm/ioapic.c
+++ /dev/null
@@ -1,403 +0,0 @@
-/*
- *  Copyright (C) 2001  MandrakeSoft S.A.
- *
- *    MandrakeSoft S.A.
- *    43, rue d'Aboukir
- *    75002 Paris - France
- *    http://www.linux-mandrake.com/
- *    http://www.mandrakesoft.com/
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- *
- *  Yunhong Jiang <yunhong.jiang@intel.com>
- *  Yaozu (Eddie) Dong <eddie.dong@intel.com>
- *  Based on Xen 3.1 code.
- */
-
-#include <linux/kvm_host.h>
-#include <linux/kvm.h>
-#include <linux/mm.h>
-#include <linux/highmem.h>
-#include <linux/smp.h>
-#include <linux/hrtimer.h>
-#include <linux/io.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/current.h>
-
-#include "ioapic.h"
-#include "lapic.h"
-
-#if 0
-#define ioapic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg)
-#else
-#define ioapic_debug(fmt, arg...)
-#endif
-static void ioapic_deliver(struct kvm_ioapic *vioapic, int irq);
-
-static unsigned long ioapic_read_indirect(struct kvm_ioapic *ioapic,
-					  unsigned long addr,
-					  unsigned long length)
-{
-	unsigned long result = 0;
-
-	switch (ioapic->ioregsel) {
-	case IOAPIC_REG_VERSION:
-		result = ((((IOAPIC_NUM_PINS - 1) & 0xff) << 16)
-			  | (IOAPIC_VERSION_ID & 0xff));
-		break;
-
-	case IOAPIC_REG_APIC_ID:
-	case IOAPIC_REG_ARB_ID:
-		result = ((ioapic->id & 0xf) << 24);
-		break;
-
-	default:
-		{
-			u32 redir_index = (ioapic->ioregsel - 0x10) >> 1;
-			u64 redir_content;
-
-			ASSERT(redir_index < IOAPIC_NUM_PINS);
-
-			redir_content = ioapic->redirtbl[redir_index].bits;
-			result = (ioapic->ioregsel & 0x1) ?
-			    (redir_content >> 32) & 0xffffffff :
-			    redir_content & 0xffffffff;
-			break;
-		}
-	}
-
-	return result;
-}
-
-static void ioapic_service(struct kvm_ioapic *ioapic, unsigned int idx)
-{
-	union ioapic_redir_entry *pent;
-
-	pent = &ioapic->redirtbl[idx];
-
-	if (!pent->fields.mask) {
-		ioapic_deliver(ioapic, idx);
-		if (pent->fields.trig_mode == IOAPIC_LEVEL_TRIG)
-			pent->fields.remote_irr = 1;
-	}
-	if (!pent->fields.trig_mode)
-		ioapic->irr &= ~(1 << idx);
-}
-
-static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
-{
-	unsigned index;
-
-	switch (ioapic->ioregsel) {
-	case IOAPIC_REG_VERSION:
-		/* Writes are ignored. */
-		break;
-
-	case IOAPIC_REG_APIC_ID:
-		ioapic->id = (val >> 24) & 0xf;
-		break;
-
-	case IOAPIC_REG_ARB_ID:
-		break;
-
-	default:
-		index = (ioapic->ioregsel - 0x10) >> 1;
-
-		ioapic_debug("change redir index %x val %x\n", index, val);
-		if (index >= IOAPIC_NUM_PINS)
-			return;
-		if (ioapic->ioregsel & 1) {
-			ioapic->redirtbl[index].bits &= 0xffffffff;
-			ioapic->redirtbl[index].bits |= (u64) val << 32;
-		} else {
-			ioapic->redirtbl[index].bits &= ~0xffffffffULL;
-			ioapic->redirtbl[index].bits |= (u32) val;
-			ioapic->redirtbl[index].fields.remote_irr = 0;
-		}
-		if (ioapic->irr & (1 << index))
-			ioapic_service(ioapic, index);
-		break;
-	}
-}
-
-static void ioapic_inj_irq(struct kvm_ioapic *ioapic,
-			   struct kvm_vcpu *vcpu,
-			   u8 vector, u8 trig_mode, u8 delivery_mode)
-{
-	ioapic_debug("irq %d trig %d deliv %d\n", vector, trig_mode,
-		     delivery_mode);
-
-	ASSERT((delivery_mode == IOAPIC_FIXED) ||
-	       (delivery_mode == IOAPIC_LOWEST_PRIORITY));
-
-	kvm_apic_set_irq(vcpu, vector, trig_mode);
-}
-
-static u32 ioapic_get_delivery_bitmask(struct kvm_ioapic *ioapic, u8 dest,
-				       u8 dest_mode)
-{
-	u32 mask = 0;
-	int i;
-	struct kvm *kvm = ioapic->kvm;
-	struct kvm_vcpu *vcpu;
-
-	ioapic_debug("dest %d dest_mode %d\n", dest, dest_mode);
-
-	if (dest_mode == 0) {	/* Physical mode. */
-		if (dest == 0xFF) {	/* Broadcast. */
-			for (i = 0; i < KVM_MAX_VCPUS; ++i)
-				if (kvm->vcpus[i] && kvm->vcpus[i]->arch.apic)
-					mask |= 1 << i;
-			return mask;
-		}
-		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
-			vcpu = kvm->vcpus[i];
-			if (!vcpu)
-				continue;
-			if (kvm_apic_match_physical_addr(vcpu->arch.apic, dest)) {
-				if (vcpu->arch.apic)
-					mask = 1 << i;
-				break;
-			}
-		}
-	} else if (dest != 0)	/* Logical mode, MDA non-zero. */
-		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
-			vcpu = kvm->vcpus[i];
-			if (!vcpu)
-				continue;
-			if (vcpu->arch.apic &&
-			    kvm_apic_match_logical_addr(vcpu->arch.apic, dest))
-				mask |= 1 << vcpu->vcpu_id;
-		}
-	ioapic_debug("mask %x\n", mask);
-	return mask;
-}
-
-static void ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
-{
-	u8 dest = ioapic->redirtbl[irq].fields.dest_id;
-	u8 dest_mode = ioapic->redirtbl[irq].fields.dest_mode;
-	u8 delivery_mode = ioapic->redirtbl[irq].fields.delivery_mode;
-	u8 vector = ioapic->redirtbl[irq].fields.vector;
-	u8 trig_mode = ioapic->redirtbl[irq].fields.trig_mode;
-	u32 deliver_bitmask;
-	struct kvm_vcpu *vcpu;
-	int vcpu_id;
-
-	ioapic_debug("dest=%x dest_mode=%x delivery_mode=%x "
-		     "vector=%x trig_mode=%x\n",
-		     dest, dest_mode, delivery_mode, vector, trig_mode);
-
-	deliver_bitmask = ioapic_get_delivery_bitmask(ioapic, dest, dest_mode);
-	if (!deliver_bitmask) {
-		ioapic_debug("no target on destination\n");
-		return;
-	}
-
-	switch (delivery_mode) {
-	case IOAPIC_LOWEST_PRIORITY:
-		vcpu = kvm_get_lowest_prio_vcpu(ioapic->kvm, vector,
-				deliver_bitmask);
-		if (vcpu != NULL)
-			ioapic_inj_irq(ioapic, vcpu, vector,
-				       trig_mode, delivery_mode);
-		else
-			ioapic_debug("null lowest prio vcpu: "
-				     "mask=%x vector=%x delivery_mode=%x\n",
-				     deliver_bitmask, vector, IOAPIC_LOWEST_PRIORITY);
-		break;
-	case IOAPIC_FIXED:
-		for (vcpu_id = 0; deliver_bitmask != 0; vcpu_id++) {
-			if (!(deliver_bitmask & (1 << vcpu_id)))
-				continue;
-			deliver_bitmask &= ~(1 << vcpu_id);
-			vcpu = ioapic->kvm->vcpus[vcpu_id];
-			if (vcpu) {
-				ioapic_inj_irq(ioapic, vcpu, vector,
-					       trig_mode, delivery_mode);
-			}
-		}
-		break;
-
-		/* TODO: NMI */
-	default:
-		printk(KERN_WARNING "Unsupported delivery mode %d\n",
-		       delivery_mode);
-		break;
-	}
-}
-
-void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)
-{
-	u32 old_irr = ioapic->irr;
-	u32 mask = 1 << irq;
-	union ioapic_redir_entry entry;
-
-	if (irq >= 0 && irq < IOAPIC_NUM_PINS) {
-		entry = ioapic->redirtbl[irq];
-		level ^= entry.fields.polarity;
-		if (!level)
-			ioapic->irr &= ~mask;
-		else {
-			ioapic->irr |= mask;
-			if ((!entry.fields.trig_mode && old_irr != ioapic->irr)
-			    || !entry.fields.remote_irr)
-				ioapic_service(ioapic, irq);
-		}
-	}
-}
-
-static int get_eoi_gsi(struct kvm_ioapic *ioapic, int vector)
-{
-	int i;
-
-	for (i = 0; i < IOAPIC_NUM_PINS; i++)
-		if (ioapic->redirtbl[i].fields.vector == vector)
-			return i;
-	return -1;
-}
-
-void kvm_ioapic_update_eoi(struct kvm *kvm, int vector)
-{
-	struct kvm_ioapic *ioapic = kvm->arch.vioapic;
-	union ioapic_redir_entry *ent;
-	int gsi;
-
-	gsi = get_eoi_gsi(ioapic, vector);
-	if (gsi == -1) {
-		printk(KERN_WARNING "Can't find redir item for %d EOI\n",
-		       vector);
-		return;
-	}
-
-	ent = &ioapic->redirtbl[gsi];
-	ASSERT(ent->fields.trig_mode == IOAPIC_LEVEL_TRIG);
-
-	ent->fields.remote_irr = 0;
-	if (!ent->fields.mask && (ioapic->irr & (1 << gsi)))
-		ioapic_deliver(ioapic, gsi);
-}
-
-static int ioapic_in_range(struct kvm_io_device *this, gpa_t addr)
-{
-	struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private;
-
-	return ((addr >= ioapic->base_address &&
-		 (addr < ioapic->base_address + IOAPIC_MEM_LENGTH)));
-}
-
-static void ioapic_mmio_read(struct kvm_io_device *this, gpa_t addr, int len,
-			     void *val)
-{
-	struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private;
-	u32 result;
-
-	ioapic_debug("addr %lx\n", (unsigned long)addr);
-	ASSERT(!(addr & 0xf));	/* check alignment */
-
-	addr &= 0xff;
-	switch (addr) {
-	case IOAPIC_REG_SELECT:
-		result = ioapic->ioregsel;
-		break;
-
-	case IOAPIC_REG_WINDOW:
-		result = ioapic_read_indirect(ioapic, addr, len);
-		break;
-
-	default:
-		result = 0;
-		break;
-	}
-	switch (len) {
-	case 8:
-		*(u64 *) val = result;
-		break;
-	case 1:
-	case 2:
-	case 4:
-		memcpy(val, (char *)&result, len);
-		break;
-	default:
-		printk(KERN_WARNING "ioapic: wrong length %d\n", len);
-	}
-}
-
-static void ioapic_mmio_write(struct kvm_io_device *this, gpa_t addr, int len,
-			      const void *val)
-{
-	struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private;
-	u32 data;
-
-	ioapic_debug("ioapic_mmio_write addr=%p len=%d val=%p\n",
-		     (void*)addr, len, val);
-	ASSERT(!(addr & 0xf));	/* check alignment */
-	if (len == 4 || len == 8)
-		data = *(u32 *) val;
-	else {
-		printk(KERN_WARNING "ioapic: Unsupported size %d\n", len);
-		return;
-	}
-
-	addr &= 0xff;
-	switch (addr) {
-	case IOAPIC_REG_SELECT:
-		ioapic->ioregsel = data;
-		break;
-
-	case IOAPIC_REG_WINDOW:
-		ioapic_write_indirect(ioapic, data);
-		break;
-#ifdef	CONFIG_IA64
-	case IOAPIC_REG_EOI:
-		kvm_ioapic_update_eoi(ioapic, data);
-		break;
-#endif
-
-	default:
-		break;
-	}
-}
-
-void kvm_ioapic_reset(struct kvm_ioapic *ioapic)
-{
-	int i;
-
-	for (i = 0; i < IOAPIC_NUM_PINS; i++)
-		ioapic->redirtbl[i].fields.mask = 1;
-	ioapic->base_address = IOAPIC_DEFAULT_BASE_ADDRESS;
-	ioapic->ioregsel = 0;
-	ioapic->irr = 0;
-	ioapic->id = 0;
-}
-
-int kvm_ioapic_init(struct kvm *kvm)
-{
-	struct kvm_ioapic *ioapic;
-
-	ioapic = kzalloc(sizeof(struct kvm_ioapic), GFP_KERNEL);
-	if (!ioapic)
-		return -ENOMEM;
-	kvm->arch.vioapic = ioapic;
-	kvm_ioapic_reset(ioapic);
-	ioapic->dev.read = ioapic_mmio_read;
-	ioapic->dev.write = ioapic_mmio_write;
-	ioapic->dev.in_range = ioapic_in_range;
-	ioapic->dev.private = ioapic;
-	ioapic->kvm = kvm;
-	kvm_io_bus_register_dev(&kvm->mmio_bus, &ioapic->dev);
-	return 0;
-}
diff --git a/arch/x86/kvm/ioapic.h b/arch/x86/kvm/ioapic.h
deleted file mode 100644
index 7f16675fe783..000000000000
--- a/arch/x86/kvm/ioapic.h
+++ /dev/null
@@ -1,95 +0,0 @@
-#ifndef __KVM_IO_APIC_H
-#define __KVM_IO_APIC_H
-
-#include <linux/kvm_host.h>
-
-#include "iodev.h"
-
-struct kvm;
-struct kvm_vcpu;
-
-#define IOAPIC_NUM_PINS  KVM_IOAPIC_NUM_PINS
-#define IOAPIC_VERSION_ID 0x11	/* IOAPIC version */
-#define IOAPIC_EDGE_TRIG  0
-#define IOAPIC_LEVEL_TRIG 1
-
-#define IOAPIC_DEFAULT_BASE_ADDRESS  0xfec00000
-#define IOAPIC_MEM_LENGTH            0x100
-
-/* Direct registers. */
-#define IOAPIC_REG_SELECT  0x00
-#define IOAPIC_REG_WINDOW  0x10
-#define IOAPIC_REG_EOI     0x40	/* IA64 IOSAPIC only */
-
-/* Indirect registers. */
-#define IOAPIC_REG_APIC_ID 0x00	/* x86 IOAPIC only */
-#define IOAPIC_REG_VERSION 0x01
-#define IOAPIC_REG_ARB_ID  0x02	/* x86 IOAPIC only */
-
-/*ioapic delivery mode*/
-#define	IOAPIC_FIXED			0x0
-#define	IOAPIC_LOWEST_PRIORITY		0x1
-#define	IOAPIC_PMI			0x2
-#define	IOAPIC_NMI			0x4
-#define	IOAPIC_INIT			0x5
-#define	IOAPIC_EXTINT			0x7
-
-struct kvm_ioapic {
-	u64 base_address;
-	u32 ioregsel;
-	u32 id;
-	u32 irr;
-	u32 pad;
-	union ioapic_redir_entry {
-		u64 bits;
-		struct {
-			u8 vector;
-			u8 delivery_mode:3;
-			u8 dest_mode:1;
-			u8 delivery_status:1;
-			u8 polarity:1;
-			u8 remote_irr:1;
-			u8 trig_mode:1;
-			u8 mask:1;
-			u8 reserve:7;
-			u8 reserved[4];
-			u8 dest_id;
-		} fields;
-	} redirtbl[IOAPIC_NUM_PINS];
-	struct kvm_io_device dev;
-	struct kvm *kvm;
-};
-
-#ifdef DEBUG
-#define ASSERT(x)  							\
-do {									\
-	if (!(x)) {							\
-		printk(KERN_EMERG "assertion failed %s: %d: %s\n",	\
-		       __FILE__, __LINE__, #x);				\
-		BUG();							\
-	}								\
-} while (0)
-#else
-#define ASSERT(x) do { } while (0)
-#endif
-
-static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
-{
-	return kvm->arch.vioapic;
-}
-
-#ifdef CONFIG_IA64
-static inline int irqchip_in_kernel(struct kvm *kvm)
-{
-	return 1;
-}
-#endif
-
-struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
-				       unsigned long bitmap);
-void kvm_ioapic_update_eoi(struct kvm *kvm, int vector);
-int kvm_ioapic_init(struct kvm *kvm);
-void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
-void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
-
-#endif
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
new file mode 100644
index 000000000000..317f8e211cd2
--- /dev/null
+++ b/virt/kvm/ioapic.c
@@ -0,0 +1,403 @@
+/*
+ *  Copyright (C) 2001  MandrakeSoft S.A.
+ *
+ *    MandrakeSoft S.A.
+ *    43, rue d'Aboukir
+ *    75002 Paris - France
+ *    http://www.linux-mandrake.com/
+ *    http://www.mandrakesoft.com/
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ *  Yunhong Jiang <yunhong.jiang@intel.com>
+ *  Yaozu (Eddie) Dong <eddie.dong@intel.com>
+ *  Based on Xen 3.1 code.
+ */
+
+#include <linux/kvm_host.h>
+#include <linux/kvm.h>
+#include <linux/mm.h>
+#include <linux/highmem.h>
+#include <linux/smp.h>
+#include <linux/hrtimer.h>
+#include <linux/io.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/current.h>
+
+#include "ioapic.h"
+#include "lapic.h"
+
+#if 0
+#define ioapic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg)
+#else
+#define ioapic_debug(fmt, arg...)
+#endif
+static void ioapic_deliver(struct kvm_ioapic *vioapic, int irq);
+
+static unsigned long ioapic_read_indirect(struct kvm_ioapic *ioapic,
+					  unsigned long addr,
+					  unsigned long length)
+{
+	unsigned long result = 0;
+
+	switch (ioapic->ioregsel) {
+	case IOAPIC_REG_VERSION:
+		result = ((((IOAPIC_NUM_PINS - 1) & 0xff) << 16)
+			  | (IOAPIC_VERSION_ID & 0xff));
+		break;
+
+	case IOAPIC_REG_APIC_ID:
+	case IOAPIC_REG_ARB_ID:
+		result = ((ioapic->id & 0xf) << 24);
+		break;
+
+	default:
+		{
+			u32 redir_index = (ioapic->ioregsel - 0x10) >> 1;
+			u64 redir_content;
+
+			ASSERT(redir_index < IOAPIC_NUM_PINS);
+
+			redir_content = ioapic->redirtbl[redir_index].bits;
+			result = (ioapic->ioregsel & 0x1) ?
+			    (redir_content >> 32) & 0xffffffff :
+			    redir_content & 0xffffffff;
+			break;
+		}
+	}
+
+	return result;
+}
+
+static void ioapic_service(struct kvm_ioapic *ioapic, unsigned int idx)
+{
+	union ioapic_redir_entry *pent;
+
+	pent = &ioapic->redirtbl[idx];
+
+	if (!pent->fields.mask) {
+		ioapic_deliver(ioapic, idx);
+		if (pent->fields.trig_mode == IOAPIC_LEVEL_TRIG)
+			pent->fields.remote_irr = 1;
+	}
+	if (!pent->fields.trig_mode)
+		ioapic->irr &= ~(1 << idx);
+}
+
+static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
+{
+	unsigned index;
+
+	switch (ioapic->ioregsel) {
+	case IOAPIC_REG_VERSION:
+		/* Writes are ignored. */
+		break;
+
+	case IOAPIC_REG_APIC_ID:
+		ioapic->id = (val >> 24) & 0xf;
+		break;
+
+	case IOAPIC_REG_ARB_ID:
+		break;
+
+	default:
+		index = (ioapic->ioregsel - 0x10) >> 1;
+
+		ioapic_debug("change redir index %x val %x\n", index, val);
+		if (index >= IOAPIC_NUM_PINS)
+			return;
+		if (ioapic->ioregsel & 1) {
+			ioapic->redirtbl[index].bits &= 0xffffffff;
+			ioapic->redirtbl[index].bits |= (u64) val << 32;
+		} else {
+			ioapic->redirtbl[index].bits &= ~0xffffffffULL;
+			ioapic->redirtbl[index].bits |= (u32) val;
+			ioapic->redirtbl[index].fields.remote_irr = 0;
+		}
+		if (ioapic->irr & (1 << index))
+			ioapic_service(ioapic, index);
+		break;
+	}
+}
+
+static void ioapic_inj_irq(struct kvm_ioapic *ioapic,
+			   struct kvm_vcpu *vcpu,
+			   u8 vector, u8 trig_mode, u8 delivery_mode)
+{
+	ioapic_debug("irq %d trig %d deliv %d\n", vector, trig_mode,
+		     delivery_mode);
+
+	ASSERT((delivery_mode == IOAPIC_FIXED) ||
+	       (delivery_mode == IOAPIC_LOWEST_PRIORITY));
+
+	kvm_apic_set_irq(vcpu, vector, trig_mode);
+}
+
+static u32 ioapic_get_delivery_bitmask(struct kvm_ioapic *ioapic, u8 dest,
+				       u8 dest_mode)
+{
+	u32 mask = 0;
+	int i;
+	struct kvm *kvm = ioapic->kvm;
+	struct kvm_vcpu *vcpu;
+
+	ioapic_debug("dest %d dest_mode %d\n", dest, dest_mode);
+
+	if (dest_mode == 0) {	/* Physical mode. */
+		if (dest == 0xFF) {	/* Broadcast. */
+			for (i = 0; i < KVM_MAX_VCPUS; ++i)
+				if (kvm->vcpus[i] && kvm->vcpus[i]->arch.apic)
+					mask |= 1 << i;
+			return mask;
+		}
+		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+			vcpu = kvm->vcpus[i];
+			if (!vcpu)
+				continue;
+			if (kvm_apic_match_physical_addr(vcpu->arch.apic, dest)) {
+				if (vcpu->arch.apic)
+					mask = 1 << i;
+				break;
+			}
+		}
+	} else if (dest != 0)	/* Logical mode, MDA non-zero. */
+		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+			vcpu = kvm->vcpus[i];
+			if (!vcpu)
+				continue;
+			if (vcpu->arch.apic &&
+			    kvm_apic_match_logical_addr(vcpu->arch.apic, dest))
+				mask |= 1 << vcpu->vcpu_id;
+		}
+	ioapic_debug("mask %x\n", mask);
+	return mask;
+}
+
+static void ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
+{
+	u8 dest = ioapic->redirtbl[irq].fields.dest_id;
+	u8 dest_mode = ioapic->redirtbl[irq].fields.dest_mode;
+	u8 delivery_mode = ioapic->redirtbl[irq].fields.delivery_mode;
+	u8 vector = ioapic->redirtbl[irq].fields.vector;
+	u8 trig_mode = ioapic->redirtbl[irq].fields.trig_mode;
+	u32 deliver_bitmask;
+	struct kvm_vcpu *vcpu;
+	int vcpu_id;
+
+	ioapic_debug("dest=%x dest_mode=%x delivery_mode=%x "
+		     "vector=%x trig_mode=%x\n",
+		     dest, dest_mode, delivery_mode, vector, trig_mode);
+
+	deliver_bitmask = ioapic_get_delivery_bitmask(ioapic, dest, dest_mode);
+	if (!deliver_bitmask) {
+		ioapic_debug("no target on destination\n");
+		return;
+	}
+
+	switch (delivery_mode) {
+	case IOAPIC_LOWEST_PRIORITY:
+		vcpu = kvm_get_lowest_prio_vcpu(ioapic->kvm, vector,
+				deliver_bitmask);
+		if (vcpu != NULL)
+			ioapic_inj_irq(ioapic, vcpu, vector,
+				       trig_mode, delivery_mode);
+		else
+			ioapic_debug("null lowest prio vcpu: "
+				     "mask=%x vector=%x delivery_mode=%x\n",
+				     deliver_bitmask, vector, IOAPIC_LOWEST_PRIORITY);
+		break;
+	case IOAPIC_FIXED:
+		for (vcpu_id = 0; deliver_bitmask != 0; vcpu_id++) {
+			if (!(deliver_bitmask & (1 << vcpu_id)))
+				continue;
+			deliver_bitmask &= ~(1 << vcpu_id);
+			vcpu = ioapic->kvm->vcpus[vcpu_id];
+			if (vcpu) {
+				ioapic_inj_irq(ioapic, vcpu, vector,
+					       trig_mode, delivery_mode);
+			}
+		}
+		break;
+
+		/* TODO: NMI */
+	default:
+		printk(KERN_WARNING "Unsupported delivery mode %d\n",
+		       delivery_mode);
+		break;
+	}
+}
+
+void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)
+{
+	u32 old_irr = ioapic->irr;
+	u32 mask = 1 << irq;
+	union ioapic_redir_entry entry;
+
+	if (irq >= 0 && irq < IOAPIC_NUM_PINS) {
+		entry = ioapic->redirtbl[irq];
+		level ^= entry.fields.polarity;
+		if (!level)
+			ioapic->irr &= ~mask;
+		else {
+			ioapic->irr |= mask;
+			if ((!entry.fields.trig_mode && old_irr != ioapic->irr)
+			    || !entry.fields.remote_irr)
+				ioapic_service(ioapic, irq);
+		}
+	}
+}
+
+static int get_eoi_gsi(struct kvm_ioapic *ioapic, int vector)
+{
+	int i;
+
+	for (i = 0; i < IOAPIC_NUM_PINS; i++)
+		if (ioapic->redirtbl[i].fields.vector == vector)
+			return i;
+	return -1;
+}
+
+void kvm_ioapic_update_eoi(struct kvm *kvm, int vector)
+{
+	struct kvm_ioapic *ioapic = kvm->arch.vioapic;
+	union ioapic_redir_entry *ent;
+	int gsi;
+
+	gsi = get_eoi_gsi(ioapic, vector);
+	if (gsi == -1) {
+		printk(KERN_WARNING "Can't find redir item for %d EOI\n",
+		       vector);
+		return;
+	}
+
+	ent = &ioapic->redirtbl[gsi];
+	ASSERT(ent->fields.trig_mode == IOAPIC_LEVEL_TRIG);
+
+	ent->fields.remote_irr = 0;
+	if (!ent->fields.mask && (ioapic->irr & (1 << gsi)))
+		ioapic_deliver(ioapic, gsi);
+}
+
+static int ioapic_in_range(struct kvm_io_device *this, gpa_t addr)
+{
+	struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private;
+
+	return ((addr >= ioapic->base_address &&
+		 (addr < ioapic->base_address + IOAPIC_MEM_LENGTH)));
+}
+
+static void ioapic_mmio_read(struct kvm_io_device *this, gpa_t addr, int len,
+			     void *val)
+{
+	struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private;
+	u32 result;
+
+	ioapic_debug("addr %lx\n", (unsigned long)addr);
+	ASSERT(!(addr & 0xf));	/* check alignment */
+
+	addr &= 0xff;
+	switch (addr) {
+	case IOAPIC_REG_SELECT:
+		result = ioapic->ioregsel;
+		break;
+
+	case IOAPIC_REG_WINDOW:
+		result = ioapic_read_indirect(ioapic, addr, len);
+		break;
+
+	default:
+		result = 0;
+		break;
+	}
+	switch (len) {
+	case 8:
+		*(u64 *) val = result;
+		break;
+	case 1:
+	case 2:
+	case 4:
+		memcpy(val, (char *)&result, len);
+		break;
+	default:
+		printk(KERN_WARNING "ioapic: wrong length %d\n", len);
+	}
+}
+
+static void ioapic_mmio_write(struct kvm_io_device *this, gpa_t addr, int len,
+			      const void *val)
+{
+	struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private;
+	u32 data;
+
+	ioapic_debug("ioapic_mmio_write addr=%p len=%d val=%p\n",
+		     (void*)addr, len, val);
+	ASSERT(!(addr & 0xf));	/* check alignment */
+	if (len == 4 || len == 8)
+		data = *(u32 *) val;
+	else {
+		printk(KERN_WARNING "ioapic: Unsupported size %d\n", len);
+		return;
+	}
+
+	addr &= 0xff;
+	switch (addr) {
+	case IOAPIC_REG_SELECT:
+		ioapic->ioregsel = data;
+		break;
+
+	case IOAPIC_REG_WINDOW:
+		ioapic_write_indirect(ioapic, data);
+		break;
+#ifdef	CONFIG_IA64
+	case IOAPIC_REG_EOI:
+		kvm_ioapic_update_eoi(ioapic->kvm, data);
+		break;
+#endif
+
+	default:
+		break;
+	}
+}
+
+void kvm_ioapic_reset(struct kvm_ioapic *ioapic)
+{
+	int i;
+
+	for (i = 0; i < IOAPIC_NUM_PINS; i++)
+		ioapic->redirtbl[i].fields.mask = 1;
+	ioapic->base_address = IOAPIC_DEFAULT_BASE_ADDRESS;
+	ioapic->ioregsel = 0;
+	ioapic->irr = 0;
+	ioapic->id = 0;
+}
+
+int kvm_ioapic_init(struct kvm *kvm)
+{
+	struct kvm_ioapic *ioapic;
+
+	ioapic = kzalloc(sizeof(struct kvm_ioapic), GFP_KERNEL);
+	if (!ioapic)
+		return -ENOMEM;
+	kvm->arch.vioapic = ioapic;
+	kvm_ioapic_reset(ioapic);
+	ioapic->dev.read = ioapic_mmio_read;
+	ioapic->dev.write = ioapic_mmio_write;
+	ioapic->dev.in_range = ioapic_in_range;
+	ioapic->dev.private = ioapic;
+	ioapic->kvm = kvm;
+	kvm_io_bus_register_dev(&kvm->mmio_bus, &ioapic->dev);
+	return 0;
+}
diff --git a/virt/kvm/ioapic.h b/virt/kvm/ioapic.h
new file mode 100644
index 000000000000..7f16675fe783
--- /dev/null
+++ b/virt/kvm/ioapic.h
@@ -0,0 +1,95 @@
+#ifndef __KVM_IO_APIC_H
+#define __KVM_IO_APIC_H
+
+#include <linux/kvm_host.h>
+
+#include "iodev.h"
+
+struct kvm;
+struct kvm_vcpu;
+
+#define IOAPIC_NUM_PINS  KVM_IOAPIC_NUM_PINS
+#define IOAPIC_VERSION_ID 0x11	/* IOAPIC version */
+#define IOAPIC_EDGE_TRIG  0
+#define IOAPIC_LEVEL_TRIG 1
+
+#define IOAPIC_DEFAULT_BASE_ADDRESS  0xfec00000
+#define IOAPIC_MEM_LENGTH            0x100
+
+/* Direct registers. */
+#define IOAPIC_REG_SELECT  0x00
+#define IOAPIC_REG_WINDOW  0x10
+#define IOAPIC_REG_EOI     0x40	/* IA64 IOSAPIC only */
+
+/* Indirect registers. */
+#define IOAPIC_REG_APIC_ID 0x00	/* x86 IOAPIC only */
+#define IOAPIC_REG_VERSION 0x01
+#define IOAPIC_REG_ARB_ID  0x02	/* x86 IOAPIC only */
+
+/*ioapic delivery mode*/
+#define	IOAPIC_FIXED			0x0
+#define	IOAPIC_LOWEST_PRIORITY		0x1
+#define	IOAPIC_PMI			0x2
+#define	IOAPIC_NMI			0x4
+#define	IOAPIC_INIT			0x5
+#define	IOAPIC_EXTINT			0x7
+
+struct kvm_ioapic {
+	u64 base_address;
+	u32 ioregsel;
+	u32 id;
+	u32 irr;
+	u32 pad;
+	union ioapic_redir_entry {
+		u64 bits;
+		struct {
+			u8 vector;
+			u8 delivery_mode:3;
+			u8 dest_mode:1;
+			u8 delivery_status:1;
+			u8 polarity:1;
+			u8 remote_irr:1;
+			u8 trig_mode:1;
+			u8 mask:1;
+			u8 reserve:7;
+			u8 reserved[4];
+			u8 dest_id;
+		} fields;
+	} redirtbl[IOAPIC_NUM_PINS];
+	struct kvm_io_device dev;
+	struct kvm *kvm;
+};
+
+#ifdef DEBUG
+#define ASSERT(x)  							\
+do {									\
+	if (!(x)) {							\
+		printk(KERN_EMERG "assertion failed %s: %d: %s\n",	\
+		       __FILE__, __LINE__, #x);				\
+		BUG();							\
+	}								\
+} while (0)
+#else
+#define ASSERT(x) do { } while (0)
+#endif
+
+static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
+{
+	return kvm->arch.vioapic;
+}
+
+#ifdef CONFIG_IA64
+static inline int irqchip_in_kernel(struct kvm *kvm)
+{
+	return 1;
+}
+#endif
+
+struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
+				       unsigned long bitmap);
+void kvm_ioapic_update_eoi(struct kvm *kvm, int vector);
+int kvm_ioapic_init(struct kvm *kvm);
+void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
+void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
+
+#endif
-- 
cgit v1.2.3-59-g8ed1b


From 5736199afba8a8bb60a1ea282ab72857d6b16400 Mon Sep 17 00:00:00 2001
From: Zhang Xiantao <xiantao.zhang@intel.com>
Date: Mon, 17 Dec 2007 14:21:40 +0800
Subject: KVM: Move kvm_vcpu_kick() to x86.c

Moving kvm_vcpu_kick() to x86.c. Since it should be
common for all archs, put its declarations in <linux/kvm_host.h>

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/irq.c       | 20 --------------------
 arch/x86/kvm/irq.h       |  2 --
 arch/x86/kvm/x86.c       | 20 ++++++++++++++++++++
 include/linux/kvm_host.h |  1 +
 4 files changed, 21 insertions(+), 22 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
index 07a09aad4fd6..e5714759e97f 100644
--- a/arch/x86/kvm/irq.c
+++ b/arch/x86/kvm/irq.c
@@ -63,26 +63,6 @@ int kvm_cpu_get_interrupt(struct kvm_vcpu *v)
 }
 EXPORT_SYMBOL_GPL(kvm_cpu_get_interrupt);
 
-static void vcpu_kick_intr(void *info)
-{
-#ifdef DEBUG
-	struct kvm_vcpu *vcpu = (struct kvm_vcpu *)info;
-	printk(KERN_DEBUG "vcpu_kick_intr %p \n", vcpu);
-#endif
-}
-
-void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
-{
-	int ipi_pcpu = vcpu->cpu;
-
-	if (waitqueue_active(&vcpu->wq)) {
-		wake_up_interruptible(&vcpu->wq);
-		++vcpu->stat.halt_wakeup;
-	}
-	if (vcpu->guest_mode)
-		smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0, 0);
-}
-
 void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu)
 {
 	kvm_inject_apic_timer_irqs(vcpu);
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index c376b5b41bba..53c7f48254be 100644
--- a/arch/x86/kvm/irq.h
+++ b/arch/x86/kvm/irq.h
@@ -85,6 +85,4 @@ void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
 void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
 void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu);
 
-void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
-
 #endif
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 5902c5cbc1bb..733bff65d9a9 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3144,3 +3144,23 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
 	return vcpu->arch.mp_state == VCPU_MP_STATE_RUNNABLE
 	       || vcpu->arch.mp_state == VCPU_MP_STATE_SIPI_RECEIVED;
 }
+
+static void vcpu_kick_intr(void *info)
+{
+#ifdef DEBUG
+	struct kvm_vcpu *vcpu = (struct kvm_vcpu *)info;
+	printk(KERN_DEBUG "vcpu_kick_intr %p \n", vcpu);
+#endif
+}
+
+void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
+{
+	int ipi_pcpu = vcpu->cpu;
+
+	if (waitqueue_active(&vcpu->wq)) {
+		wake_up_interruptible(&vcpu->wq);
+		++vcpu->stat.halt_wakeup;
+	}
+	if (vcpu->guest_mode)
+		smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0, 0);
+}
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index a85d5b6943de..953b50aa0e61 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -250,6 +250,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm);
 
 int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
 int kvm_cpu_has_interrupt(struct kvm_vcpu *v);
+void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
 
 static inline void kvm_guest_enter(void)
 {
-- 
cgit v1.2.3-59-g8ed1b


From caa5b8a5ed27708521e0667649699fea202043b2 Mon Sep 17 00:00:00 2001
From: Eddie Dong <eddie.dong@intel.com>
Date: Tue, 18 Dec 2007 06:08:27 +0800
Subject: KVM: MMU: Coalesce remote tlb flushes

Host side TLB flush can be merged together if multiple
spte need to be write-protected.

Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/mmu.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 401eb7ce3207..9a57e1a01449 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -513,6 +513,7 @@ static void rmap_write_protect(struct kvm *kvm, u64 gfn)
 {
 	unsigned long *rmapp;
 	u64 *spte;
+	int write_protected = 0;
 
 	gfn = unalias_gfn(kvm, gfn);
 	rmapp = gfn_to_rmap(kvm, gfn);
@@ -522,11 +523,14 @@ static void rmap_write_protect(struct kvm *kvm, u64 gfn)
 		BUG_ON(!spte);
 		BUG_ON(!(*spte & PT_PRESENT_MASK));
 		rmap_printk("rmap_write_protect: spte %p %llx\n", spte, *spte);
-		if (is_writeble_pte(*spte))
+		if (is_writeble_pte(*spte)) {
 			set_shadow_pte(spte, *spte & ~PT_WRITABLE_MASK);
-		kvm_flush_remote_tlbs(kvm);
+			write_protected = 1;
+		}
 		spte = rmap_next(kvm, rmapp, spte);
 	}
+	if (write_protected)
+		kvm_flush_remote_tlbs(kvm);
 }
 
 #ifdef MMU_DEBUG
-- 
cgit v1.2.3-59-g8ed1b


From dfc5aa00cbe888d3a9ea97775bbac74cb1c1a1d8 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Tue, 18 Dec 2007 19:47:18 +0200
Subject: KVM: MMU: Add cache miss statistic

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/mmu.c         | 1 +
 arch/x86/kvm/x86.c         | 1 +
 include/asm-x86/kvm_host.h | 1 +
 3 files changed, 3 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 9a57e1a01449..8f12ec52ad86 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -715,6 +715,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
 			pgprintk("%s: found\n", __FUNCTION__);
 			return sp;
 		}
+	++vcpu->kvm->stat.mmu_cache_miss;
 	sp = kvm_mmu_alloc_page(vcpu, parent_pte);
 	if (!sp)
 		return sp;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 733bff65d9a9..fa9e42c03741 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -73,6 +73,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
 	{ "mmu_pde_zapped", VM_STAT(mmu_pde_zapped) },
 	{ "mmu_flooded", VM_STAT(mmu_flooded) },
 	{ "mmu_recycled", VM_STAT(mmu_recycled) },
+	{ "mmu_cache_miss", VM_STAT(mmu_cache_miss) },
 	{ "remote_tlb_flush", VM_STAT(remote_tlb_flush) },
 	{ NULL }
 };
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index 28940e1a9713..ced1bebabbc8 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -289,6 +289,7 @@ struct kvm_vm_stat {
 	u32 mmu_pde_zapped;
 	u32 mmu_flooded;
 	u32 mmu_recycled;
+	u32 mmu_cache_miss;
 	u32 remote_tlb_flush;
 };
 
-- 
cgit v1.2.3-59-g8ed1b


From 565f1fbd9d2f766dcfed5db90b89ef80afe8b49a Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Wed, 19 Dec 2007 12:02:40 +0200
Subject: KVM: Print data for unimplemented wrmsr

This can help diagnosing what the guest is trying to do.  In many cases
we can get away with partial emulation of msrs.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/x86.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index fa9e42c03741..513258c797ca 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -499,7 +499,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
 		vcpu->arch.ia32_misc_enable_msr = data;
 		break;
 	default:
-		pr_unimpl(vcpu, "unhandled wrmsr: 0x%x\n", msr);
+		pr_unimpl(vcpu, "unhandled wrmsr: 0x%x data %llx\n", msr, data);
 		return 1;
 	}
 	return 0;
-- 
cgit v1.2.3-59-g8ed1b


From b209749f528488c4c0d20a42c0fbcbf49e6933b3 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Mon, 22 Oct 2007 16:50:39 +0200
Subject: KVM: local APIC TPR access reporting facility

Add a facility to report on accesses to the local apic tpr even if the
local apic is emulated in the kernel.  This is basically a hack that
allows userspace to patch Windows which tends to bang on the tpr a lot.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/lapic.c       | 21 +++++++++++++++++++++
 arch/x86/kvm/x86.c         | 25 +++++++++++++++++++++++++
 include/asm-x86/kvm_host.h |  1 +
 include/linux/kvm.h        | 17 +++++++++++++++++
 include/linux/kvm_host.h   |  2 +-
 5 files changed, 65 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 4076331b01ee..50c3f3a8dd3d 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -551,6 +551,23 @@ static u32 apic_get_tmcct(struct kvm_lapic *apic)
 	return tmcct;
 }
 
+static void __report_tpr_access(struct kvm_lapic *apic, bool write)
+{
+	struct kvm_vcpu *vcpu = apic->vcpu;
+	struct kvm_run *run = vcpu->run;
+
+	set_bit(KVM_REQ_REPORT_TPR_ACCESS, &vcpu->requests);
+	kvm_x86_ops->cache_regs(vcpu);
+	run->tpr_access.rip = vcpu->arch.rip;
+	run->tpr_access.is_write = write;
+}
+
+static inline void report_tpr_access(struct kvm_lapic *apic, bool write)
+{
+	if (apic->vcpu->arch.tpr_access_reporting)
+		__report_tpr_access(apic, write);
+}
+
 static u32 __apic_read(struct kvm_lapic *apic, unsigned int offset)
 {
 	u32 val = 0;
@@ -568,6 +585,9 @@ static u32 __apic_read(struct kvm_lapic *apic, unsigned int offset)
 		val = apic_get_tmcct(apic);
 		break;
 
+	case APIC_TASKPRI:
+		report_tpr_access(apic, false);
+		/* fall thru */
 	default:
 		apic_update_ppr(apic);
 		val = apic_get_reg(apic, offset);
@@ -677,6 +697,7 @@ static void apic_mmio_write(struct kvm_io_device *this,
 		break;
 
 	case APIC_TASKPRI:
+		report_tpr_access(apic, true);
 		apic_set_tpr(apic, val & 0xff);
 		break;
 
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 513258c797ca..c2b80884447e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -684,6 +684,7 @@ int kvm_dev_ioctl_check_extension(long ext)
 	case KVM_CAP_USER_MEMORY:
 	case KVM_CAP_SET_TSS_ADDR:
 	case KVM_CAP_EXT_CPUID:
+	case KVM_CAP_VAPIC:
 		r = 1;
 		break;
 	default:
@@ -1055,6 +1056,15 @@ static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
+static int vcpu_ioctl_tpr_access_reporting(struct kvm_vcpu *vcpu,
+					   struct kvm_tpr_access_ctl *tac)
+{
+	if (tac->flags)
+		return -EINVAL;
+	vcpu->arch.tpr_access_reporting = !!tac->enabled;
+	return 0;
+}
+
 long kvm_arch_vcpu_ioctl(struct file *filp,
 			 unsigned int ioctl, unsigned long arg)
 {
@@ -1148,6 +1158,21 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
 	case KVM_SET_MSRS:
 		r = msr_io(vcpu, argp, do_set_msr, 0);
 		break;
+	case KVM_TPR_ACCESS_REPORTING: {
+		struct kvm_tpr_access_ctl tac;
+
+		r = -EFAULT;
+		if (copy_from_user(&tac, argp, sizeof tac))
+			goto out;
+		r = vcpu_ioctl_tpr_access_reporting(vcpu, &tac);
+		if (r)
+			goto out;
+		r = -EFAULT;
+		if (copy_to_user(argp, &tac, sizeof tac))
+			goto out;
+		r = 0;
+		break;
+	};
 	default:
 		r = -EINVAL;
 	}
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index ced1bebabbc8..6e649af08d19 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -211,6 +211,7 @@ struct kvm_vcpu_arch {
 	int mp_state;
 	int sipi_vector;
 	u64 ia32_misc_enable_msr;
+	bool tpr_access_reporting;
 
 	struct kvm_mmu mmu;
 
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index de9f28d96ced..850f5ef76636 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -72,6 +72,7 @@ struct kvm_irqchip {
 #define KVM_EXIT_FAIL_ENTRY       9
 #define KVM_EXIT_INTR             10
 #define KVM_EXIT_SET_TPR          11
+#define KVM_EXIT_TPR_ACCESS       12
 
 /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
 struct kvm_run {
@@ -130,6 +131,12 @@ struct kvm_run {
 			__u32 longmode;
 			__u32 pad;
 		} hypercall;
+		/* KVM_EXIT_TPR_ACCESS */
+		struct {
+			__u64 rip;
+			__u32 is_write;
+			__u32 pad;
+		} tpr_access;
 		/* Fix the size of the union. */
 		char padding[256];
 	};
@@ -202,6 +209,13 @@ struct kvm_signal_mask {
 	__u8  sigset[0];
 };
 
+/* for KVM_TPR_ACCESS_REPORTING */
+struct kvm_tpr_access_ctl {
+	__u32 enabled;
+	__u32 flags;
+	__u32 reserved[8];
+};
+
 #define KVMIO 0xAE
 
 /*
@@ -229,6 +243,7 @@ struct kvm_signal_mask {
 #define KVM_CAP_USER_MEMORY 3
 #define KVM_CAP_SET_TSS_ADDR 4
 #define KVM_CAP_EXT_CPUID 5
+#define KVM_CAP_VAPIC 6
 
 /*
  * ioctls for VM fds
@@ -274,5 +289,7 @@ struct kvm_signal_mask {
 #define KVM_SET_LAPIC             _IOW(KVMIO,  0x8f, struct kvm_lapic_state)
 #define KVM_SET_CPUID2            _IOW(KVMIO,  0x90, struct kvm_cpuid2)
 #define KVM_GET_CPUID2            _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
+/* Available with KVM_CAP_VAPIC */
+#define KVM_TPR_ACCESS_REPORTING  _IOWR(KVMIO,  0x92, struct kvm_tpr_access_ctl)
 
 #endif
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 953b50aa0e61..9ff5904c5072 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -35,7 +35,7 @@
  * vcpu->requests bit members
  */
 #define KVM_REQ_TLB_FLUSH          0
-
+#define KVM_REQ_REPORT_TPR_ACCESS  2
 
 struct kvm_vcpu;
 extern struct kmem_cache *kvm_vcpu_cache;
-- 
cgit v1.2.3-59-g8ed1b


From b93463aa59d67b21b4921e30bd5c5dcc7c35ffbd Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Thu, 25 Oct 2007 16:52:32 +0200
Subject: KVM: Accelerated apic support

This adds a mechanism for exposing the virtual apic tpr to the guest, and a
protocol for letting the guest update the tpr without causing a vmexit if
conditions allow (e.g. there is no interrupt pending with a higher priority
than the new tpr).

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/lapic.c     | 51 +++++++++++++++++++++++++++++++++++++++++++-
 arch/x86/kvm/lapic.h     |  6 ++++++
 arch/x86/kvm/x86.c       | 55 ++++++++++++++++++++++++++++++++++++++++++++++++
 include/linux/kvm.h      |  7 ++++++
 include/linux/kvm_para.h |  2 ++
 5 files changed, 120 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 50c3f3a8dd3d..e7513bb98af1 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -815,7 +815,8 @@ void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8)
 
 	if (!apic)
 		return;
-	apic_set_tpr(apic, ((cr8 & 0x0f) << 4));
+	apic_set_tpr(apic, ((cr8 & 0x0f) << 4)
+		     | (apic_get_reg(apic, APIC_TASKPRI) & 4));
 }
 
 u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu)
@@ -1104,3 +1105,51 @@ void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu)
 		hrtimer_start(timer, timer->expires, HRTIMER_MODE_ABS);
 }
 EXPORT_SYMBOL_GPL(kvm_migrate_apic_timer);
+
+void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu)
+{
+	u32 data;
+	void *vapic;
+
+	if (!irqchip_in_kernel(vcpu->kvm) || !vcpu->arch.apic->vapic_addr)
+		return;
+
+	vapic = kmap_atomic(vcpu->arch.apic->vapic_page, KM_USER0);
+	data = *(u32 *)(vapic + offset_in_page(vcpu->arch.apic->vapic_addr));
+	kunmap_atomic(vapic, KM_USER0);
+
+	apic_set_tpr(vcpu->arch.apic, data & 0xff);
+}
+
+void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu)
+{
+	u32 data, tpr;
+	int max_irr, max_isr;
+	struct kvm_lapic *apic;
+	void *vapic;
+
+	if (!irqchip_in_kernel(vcpu->kvm) || !vcpu->arch.apic->vapic_addr)
+		return;
+
+	apic = vcpu->arch.apic;
+	tpr = apic_get_reg(apic, APIC_TASKPRI) & 0xff;
+	max_irr = apic_find_highest_irr(apic);
+	if (max_irr < 0)
+		max_irr = 0;
+	max_isr = apic_find_highest_isr(apic);
+	if (max_isr < 0)
+		max_isr = 0;
+	data = (tpr & 0xff) | ((max_isr & 0xf0) << 8) | (max_irr << 24);
+
+	vapic = kmap_atomic(vcpu->arch.apic->vapic_page, KM_USER0);
+	*(u32 *)(vapic + offset_in_page(vcpu->arch.apic->vapic_addr)) = data;
+	kunmap_atomic(vapic, KM_USER0);
+}
+
+void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr)
+{
+	if (!irqchip_in_kernel(vcpu->kvm))
+		return;
+
+	vcpu->arch.apic->vapic_addr = vapic_addr;
+}
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 447b654aefbb..676c396c9cee 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -18,6 +18,8 @@ struct kvm_lapic {
 	struct kvm_vcpu *vcpu;
 	struct page *regs_page;
 	void *regs;
+	gpa_t vapic_addr;
+	struct page *vapic_page;
 };
 int kvm_create_lapic(struct kvm_vcpu *vcpu);
 void kvm_free_lapic(struct kvm_vcpu *vcpu);
@@ -41,4 +43,8 @@ int kvm_lapic_enabled(struct kvm_vcpu *vcpu);
 int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);
 void kvm_apic_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
 
+void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr);
+void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu);
+void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu);
+
 #endif
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c2b80884447e..e7eac27adb7f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1173,6 +1173,19 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
 		r = 0;
 		break;
 	};
+	case KVM_SET_VAPIC_ADDR: {
+		struct kvm_vapic_addr va;
+
+		r = -EINVAL;
+		if (!irqchip_in_kernel(vcpu->kvm))
+			goto out;
+		r = -EFAULT;
+		if (copy_from_user(&va, argp, sizeof va))
+			goto out;
+		r = 0;
+		kvm_lapic_set_vapic_addr(vcpu, va.vapic_addr);
+		break;
+	}
 	default:
 		r = -EINVAL;
 	}
@@ -2214,6 +2227,9 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
 	}
 
 	switch (nr) {
+	case KVM_HC_VAPIC_POLL_IRQ:
+		ret = 0;
+		break;
 	default:
 		ret = -KVM_ENOSYS;
 		break;
@@ -2421,6 +2437,29 @@ static void post_kvm_run_save(struct kvm_vcpu *vcpu,
 					 vcpu->arch.irq_summary == 0);
 }
 
+static void vapic_enter(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+	struct page *page;
+
+	if (!apic || !apic->vapic_addr)
+		return;
+
+	page = gfn_to_page(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT);
+	vcpu->arch.apic->vapic_page = page;
+}
+
+static void vapic_exit(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+
+	if (!apic || !apic->vapic_addr)
+		return;
+
+	kvm_release_page_dirty(apic->vapic_page);
+	mark_page_dirty(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT);
+}
+
 static int __vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 {
 	int r;
@@ -2435,6 +2474,8 @@ static int __vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 		vcpu->arch.mp_state = VCPU_MP_STATE_RUNNABLE;
 	}
 
+	vapic_enter(vcpu);
+
 preempted:
 	if (vcpu->guest_debug.enabled)
 		kvm_x86_ops->guest_debug_pre(vcpu);
@@ -2444,6 +2485,14 @@ again:
 	if (unlikely(r))
 		goto out;
 
+	if (vcpu->requests)
+		if (test_and_clear_bit(KVM_REQ_REPORT_TPR_ACCESS,
+				       &vcpu->requests)) {
+			kvm_run->exit_reason = KVM_EXIT_TPR_ACCESS;
+			r = 0;
+			goto out;
+		}
+
 	kvm_inject_pending_timer_irqs(vcpu);
 
 	preempt_disable();
@@ -2469,6 +2518,8 @@ again:
 	else
 		kvm_x86_ops->inject_pending_vectors(vcpu, kvm_run);
 
+	kvm_lapic_sync_to_vapic(vcpu);
+
 	vcpu->guest_mode = 1;
 	kvm_guest_enter();
 
@@ -2506,6 +2557,8 @@ again:
 	if (vcpu->arch.exception.pending && kvm_x86_ops->exception_injected(vcpu))
 		vcpu->arch.exception.pending = false;
 
+	kvm_lapic_sync_from_vapic(vcpu);
+
 	r = kvm_x86_ops->handle_exit(kvm_run, vcpu);
 
 	if (r > 0) {
@@ -2527,6 +2580,8 @@ out:
 
 	post_kvm_run_save(vcpu, kvm_run);
 
+	vapic_exit(vcpu);
+
 	return r;
 }
 
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 850f5ef76636..b27a381db5e8 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -216,6 +216,11 @@ struct kvm_tpr_access_ctl {
 	__u32 reserved[8];
 };
 
+/* for KVM_SET_VAPIC_ADDR */
+struct kvm_vapic_addr {
+	__u64 vapic_addr;
+};
+
 #define KVMIO 0xAE
 
 /*
@@ -291,5 +296,7 @@ struct kvm_tpr_access_ctl {
 #define KVM_GET_CPUID2            _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
 /* Available with KVM_CAP_VAPIC */
 #define KVM_TPR_ACCESS_REPORTING  _IOWR(KVMIO,  0x92, struct kvm_tpr_access_ctl)
+/* Available with KVM_CAP_VAPIC */
+#define KVM_SET_VAPIC_ADDR        _IOW(KVMIO,  0x93, struct kvm_vapic_addr)
 
 #endif
diff --git a/include/linux/kvm_para.h b/include/linux/kvm_para.h
index e4db25ffdb52..6af91a506fbf 100644
--- a/include/linux/kvm_para.h
+++ b/include/linux/kvm_para.h
@@ -12,6 +12,8 @@
 /* Return values for hypercalls */
 #define KVM_ENOSYS		1000
 
+#define KVM_HC_VAPIC_POLL_IRQ            1
+
 #ifdef __KERNEL__
 /*
  * hypercalls use architecture specific
-- 
cgit v1.2.3-59-g8ed1b


From 774ead3ad9bcbc05ef6aaebb9bdf8b4c3126923b Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Wed, 26 Dec 2007 13:57:04 +0200
Subject: KVM: Disable vapic support on Intel machines with FlexPriority

FlexPriority accelerates the tpr without any patching.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/svm.c         | 6 ++++++
 arch/x86/kvm/vmx.c         | 3 ++-
 arch/x86/kvm/x86.c         | 4 +++-
 include/asm-x86/kvm_host.h | 1 +
 4 files changed, 12 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 3d4b71a94440..33f77b044c52 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1653,6 +1653,11 @@ static void svm_check_processor_compat(void *rtn)
 	*(int *)rtn = 0;
 }
 
+static bool svm_cpu_has_accelerated_tpr(void)
+{
+	return false;
+}
+
 static struct kvm_x86_ops svm_x86_ops = {
 	.cpu_has_kvm_support = has_svm,
 	.disabled_by_bios = is_disabled,
@@ -1661,6 +1666,7 @@ static struct kvm_x86_ops svm_x86_ops = {
 	.check_processor_compatibility = svm_check_processor_compat,
 	.hardware_enable = svm_hardware_enable,
 	.hardware_disable = svm_hardware_disable,
+	.cpu_has_accelerated_tpr = svm_cpu_has_accelerated_tpr,
 
 	.vcpu_create = svm_create_vcpu,
 	.vcpu_free = svm_free_vcpu,
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index fc494aff5d8b..d1167fc303d6 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -192,7 +192,7 @@ static inline int cpu_has_secondary_exec_ctrls(void)
 		CPU_BASED_ACTIVATE_SECONDARY_CONTROLS);
 }
 
-static inline int cpu_has_vmx_virtualize_apic_accesses(void)
+static inline bool cpu_has_vmx_virtualize_apic_accesses(void)
 {
 	return (vmcs_config.cpu_based_2nd_exec_ctrl &
 		SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES);
@@ -2565,6 +2565,7 @@ static struct kvm_x86_ops vmx_x86_ops = {
 	.check_processor_compatibility = vmx_check_processor_compat,
 	.hardware_enable = hardware_enable,
 	.hardware_disable = hardware_disable,
+	.cpu_has_accelerated_tpr = cpu_has_vmx_virtualize_apic_accesses,
 
 	.vcpu_create = vmx_create_vcpu,
 	.vcpu_free = vmx_free_vcpu,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e7eac27adb7f..1f48ec871035 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -684,9 +684,11 @@ int kvm_dev_ioctl_check_extension(long ext)
 	case KVM_CAP_USER_MEMORY:
 	case KVM_CAP_SET_TSS_ADDR:
 	case KVM_CAP_EXT_CPUID:
-	case KVM_CAP_VAPIC:
 		r = 1;
 		break;
+	case KVM_CAP_VAPIC:
+		r = !kvm_x86_ops->cpu_has_accelerated_tpr();
+		break;
 	default:
 		r = 0;
 		break;
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index 6e649af08d19..44b89259f6c4 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -329,6 +329,7 @@ struct kvm_x86_ops {
 	void (*check_processor_compatibility)(void *rtn);
 	int (*hardware_setup)(void);               /* __init */
 	void (*hardware_unsetup)(void);            /* __exit */
+	bool (*cpu_has_accelerated_tpr)(void);
 
 	/* Create, but do not attach this VCPU */
 	struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
-- 
cgit v1.2.3-59-g8ed1b


From 10589a4699bb978c781ce73bbae8ca942c5250c9 Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Thu, 20 Dec 2007 19:18:22 -0500
Subject: KVM: MMU: Concurrent guest walkers

Do not hold kvm->lock mutex across the entire pagefault code,
only acquire it in places where it is necessary, such as mmu
hash list, active list, rmap and parent pte handling.

Allow concurrent guest walkers by switching walk_addr() to use
mmap_sem in read-mode.

And get rid of the lockless __gfn_to_page.

[avi: move kvm_mmu_pte_write() locking inside the function]
[avi: add locking for real mode]
[avi: fix cmpxchg locking]

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/mmu.c         | 41 +++++++++++++++++----
 arch/x86/kvm/paging_tmpl.h |  8 +++-
 arch/x86/kvm/vmx.c         | 25 +++++++++----
 arch/x86/kvm/x86.c         | 92 +++++++++++++++++++++++++++-------------------
 virt/kvm/kvm_main.c        | 22 +++--------
 5 files changed, 117 insertions(+), 71 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 8f12ec52ad86..3b91227969a5 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -974,7 +974,7 @@ static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)
 {
 }
 
-static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
+static int __nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
 {
 	int level = PT32E_ROOT_LEVEL;
 	hpa_t table_addr = vcpu->arch.mmu.root_hpa;
@@ -1015,6 +1015,17 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
 	}
 }
 
+static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
+{
+	int r;
+
+	mutex_lock(&vcpu->kvm->lock);
+	r = __nonpaging_map(vcpu, v, write, gfn);
+	mutex_unlock(&vcpu->kvm->lock);
+	return r;
+}
+
+
 static void nonpaging_prefetch_page(struct kvm_vcpu *vcpu,
 				    struct kvm_mmu_page *sp)
 {
@@ -1031,6 +1042,7 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
 
 	if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
 		return;
+	mutex_lock(&vcpu->kvm->lock);
 #ifdef CONFIG_X86_64
 	if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) {
 		hpa_t root = vcpu->arch.mmu.root_hpa;
@@ -1038,6 +1050,7 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
 		sp = page_header(root);
 		--sp->root_count;
 		vcpu->arch.mmu.root_hpa = INVALID_PAGE;
+		mutex_unlock(&vcpu->kvm->lock);
 		return;
 	}
 #endif
@@ -1051,6 +1064,7 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
 		}
 		vcpu->arch.mmu.pae_root[i] = INVALID_PAGE;
 	}
+	mutex_unlock(&vcpu->kvm->lock);
 	vcpu->arch.mmu.root_hpa = INVALID_PAGE;
 }
 
@@ -1250,15 +1264,15 @@ int kvm_mmu_load(struct kvm_vcpu *vcpu)
 {
 	int r;
 
-	mutex_lock(&vcpu->kvm->lock);
 	r = mmu_topup_memory_caches(vcpu);
 	if (r)
 		goto out;
+	mutex_lock(&vcpu->kvm->lock);
 	mmu_alloc_roots(vcpu);
+	mutex_unlock(&vcpu->kvm->lock);
 	kvm_x86_ops->set_cr3(vcpu, vcpu->arch.mmu.root_hpa);
 	kvm_mmu_flush_tlb(vcpu);
 out:
-	mutex_unlock(&vcpu->kvm->lock);
 	return r;
 }
 EXPORT_SYMBOL_GPL(kvm_mmu_load);
@@ -1353,6 +1367,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
 	int npte;
 
 	pgprintk("%s: gpa %llx bytes %d\n", __FUNCTION__, gpa, bytes);
+	mutex_lock(&vcpu->kvm->lock);
 	++vcpu->kvm->stat.mmu_pte_write;
 	kvm_mmu_audit(vcpu, "pre pte write");
 	if (gfn == vcpu->arch.last_pt_write_gfn
@@ -1421,17 +1436,27 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
 		}
 	}
 	kvm_mmu_audit(vcpu, "post pte write");
+	mutex_unlock(&vcpu->kvm->lock);
 }
 
 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
 {
-	gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva);
+	gpa_t gpa;
+	int r;
 
-	return kvm_mmu_unprotect_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+	down_read(&current->mm->mmap_sem);
+	gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva);
+	up_read(&current->mm->mmap_sem);
+
+	mutex_lock(&vcpu->kvm->lock);
+	r = kvm_mmu_unprotect_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+	mutex_unlock(&vcpu->kvm->lock);
+	return r;
 }
 
 void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
 {
+	mutex_lock(&vcpu->kvm->lock);
 	while (vcpu->kvm->arch.n_free_mmu_pages < KVM_REFILL_PAGES) {
 		struct kvm_mmu_page *sp;
 
@@ -1440,6 +1465,7 @@ void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
 		kvm_mmu_zap_page(vcpu->kvm, sp);
 		++vcpu->kvm->stat.mmu_recycled;
 	}
+	mutex_unlock(&vcpu->kvm->lock);
 }
 
 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code)
@@ -1447,7 +1473,6 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code)
 	int r;
 	enum emulation_result er;
 
-	mutex_lock(&vcpu->kvm->lock);
 	r = vcpu->arch.mmu.page_fault(vcpu, cr2, error_code);
 	if (r < 0)
 		goto out;
@@ -1462,7 +1487,6 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code)
 		goto out;
 
 	er = emulate_instruction(vcpu, vcpu->run, cr2, error_code, 0);
-	mutex_unlock(&vcpu->kvm->lock);
 
 	switch (er) {
 	case EMULATE_DONE:
@@ -1477,7 +1501,6 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code)
 		BUG();
 	}
 out:
-	mutex_unlock(&vcpu->kvm->lock);
 	return r;
 }
 EXPORT_SYMBOL_GPL(kvm_mmu_page_fault);
@@ -1574,8 +1597,10 @@ void kvm_mmu_zap_all(struct kvm *kvm)
 {
 	struct kvm_mmu_page *sp, *node;
 
+	mutex_lock(&kvm->lock);
 	list_for_each_entry_safe(sp, node, &kvm->arch.active_mmu_pages, link)
 		kvm_mmu_zap_page(kvm, sp);
+	mutex_unlock(&kvm->lock);
 
 	kvm_flush_remote_tlbs(kvm);
 }
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 56b88f7e83ef..7f83f5557d5e 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -368,11 +368,13 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
 	if (r)
 		return r;
 
+	down_read(&current->mm->mmap_sem);
 	/*
 	 * Look up the shadow pte for the faulting address.
 	 */
 	r = FNAME(walk_addr)(&walker, vcpu, addr, write_fault, user_fault,
 			     fetch_fault);
+	up_read(&current->mm->mmap_sem);
 
 	/*
 	 * The page is not mapped by the guest.  Let the guest handle it.
@@ -384,6 +386,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
 		return 0;
 	}
 
+	mutex_lock(&vcpu->kvm->lock);
 	shadow_pte = FNAME(fetch)(vcpu, addr, &walker, user_fault, write_fault,
 				  &write_pt);
 	pgprintk("%s: shadow pte %p %llx ptwrite %d\n", __FUNCTION__,
@@ -395,11 +398,14 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
 	/*
 	 * mmio: emulate if accessible, otherwise its a guest fault.
 	 */
-	if (shadow_pte && is_io_pte(*shadow_pte))
+	if (shadow_pte && is_io_pte(*shadow_pte)) {
+		mutex_unlock(&vcpu->kvm->lock);
 		return 1;
+	}
 
 	++vcpu->stat.pf_fixed;
 	kvm_mmu_audit(vcpu, "post page fault (fixed)");
+	mutex_unlock(&vcpu->kvm->lock);
 
 	return write_pt;
 }
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index d1167fc303d6..c39493feba46 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1432,27 +1432,34 @@ static int init_rmode_tss(struct kvm *kvm)
 {
 	gfn_t fn = rmode_tss_base(kvm) >> PAGE_SHIFT;
 	u16 data = 0;
+	int ret = 0;
 	int r;
 
+	down_read(&current->mm->mmap_sem);
 	r = kvm_clear_guest_page(kvm, fn, 0, PAGE_SIZE);
 	if (r < 0)
-		return 0;
+		goto out;
 	data = TSS_BASE_SIZE + TSS_REDIRECTION_SIZE;
 	r = kvm_write_guest_page(kvm, fn++, &data, 0x66, sizeof(u16));
 	if (r < 0)
-		return 0;
+		goto out;
 	r = kvm_clear_guest_page(kvm, fn++, 0, PAGE_SIZE);
 	if (r < 0)
-		return 0;
+		goto out;
 	r = kvm_clear_guest_page(kvm, fn, 0, PAGE_SIZE);
 	if (r < 0)
-		return 0;
+		goto out;
 	data = ~0;
-	r = kvm_write_guest_page(kvm, fn, &data, RMODE_TSS_SIZE - 2 * PAGE_SIZE - 1,
-			sizeof(u8));
+	r = kvm_write_guest_page(kvm, fn, &data,
+				 RMODE_TSS_SIZE - 2 * PAGE_SIZE - 1,
+				 sizeof(u8));
 	if (r < 0)
-		return 0;
-	return 1;
+		goto out;
+
+	ret = 1;
+out:
+	up_read(&current->mm->mmap_sem);
+	return ret;
 }
 
 static void seg_setup(int seg)
@@ -1471,6 +1478,7 @@ static int alloc_apic_access_page(struct kvm *kvm)
 	int r = 0;
 
 	mutex_lock(&kvm->lock);
+	down_write(&current->mm->mmap_sem);
 	if (kvm->arch.apic_access_page)
 		goto out;
 	kvm_userspace_mem.slot = APIC_ACCESS_PAGE_PRIVATE_MEMSLOT;
@@ -1482,6 +1490,7 @@ static int alloc_apic_access_page(struct kvm *kvm)
 		goto out;
 	kvm->arch.apic_access_page = gfn_to_page(kvm, 0xfee00);
 out:
+	up_write(&current->mm->mmap_sem);
 	mutex_unlock(&kvm->lock);
 	return r;
 }
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 1f48ec871035..e3b3141db13c 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -181,7 +181,7 @@ int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3)
 	int ret;
 	u64 pdpte[ARRAY_SIZE(vcpu->arch.pdptrs)];
 
-	mutex_lock(&vcpu->kvm->lock);
+	down_read(&current->mm->mmap_sem);
 	ret = kvm_read_guest_page(vcpu->kvm, pdpt_gfn, pdpte,
 				  offset * sizeof(u64), sizeof(pdpte));
 	if (ret < 0) {
@@ -198,7 +198,7 @@ int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3)
 
 	memcpy(vcpu->arch.pdptrs, pdpte, sizeof(vcpu->arch.pdptrs));
 out:
-	mutex_unlock(&vcpu->kvm->lock);
+	up_read(&current->mm->mmap_sem);
 
 	return ret;
 }
@@ -212,13 +212,13 @@ static bool pdptrs_changed(struct kvm_vcpu *vcpu)
 	if (is_long_mode(vcpu) || !is_pae(vcpu))
 		return false;
 
-	mutex_lock(&vcpu->kvm->lock);
+	down_read(&current->mm->mmap_sem);
 	r = kvm_read_guest(vcpu->kvm, vcpu->arch.cr3 & ~31u, pdpte, sizeof(pdpte));
 	if (r < 0)
 		goto out;
 	changed = memcmp(pdpte, vcpu->arch.pdptrs, sizeof(pdpte)) != 0;
 out:
-	mutex_unlock(&vcpu->kvm->lock);
+	up_read(&current->mm->mmap_sem);
 
 	return changed;
 }
@@ -278,9 +278,7 @@ void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
 	kvm_x86_ops->set_cr0(vcpu, cr0);
 	vcpu->arch.cr0 = cr0;
 
-	mutex_lock(&vcpu->kvm->lock);
 	kvm_mmu_reset_context(vcpu);
-	mutex_unlock(&vcpu->kvm->lock);
 	return;
 }
 EXPORT_SYMBOL_GPL(set_cr0);
@@ -320,9 +318,7 @@ void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
 	}
 	kvm_x86_ops->set_cr4(vcpu, cr4);
 	vcpu->arch.cr4 = cr4;
-	mutex_lock(&vcpu->kvm->lock);
 	kvm_mmu_reset_context(vcpu);
-	mutex_unlock(&vcpu->kvm->lock);
 }
 EXPORT_SYMBOL_GPL(set_cr4);
 
@@ -360,7 +356,7 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
 		 */
 	}
 
-	mutex_lock(&vcpu->kvm->lock);
+	down_read(&current->mm->mmap_sem);
 	/*
 	 * Does the new cr3 value map to physical memory? (Note, we
 	 * catch an invalid cr3 even in real-mode, because it would
@@ -376,7 +372,7 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
 		vcpu->arch.cr3 = cr3;
 		vcpu->arch.mmu.new_cr3(vcpu);
 	}
-	mutex_unlock(&vcpu->kvm->lock);
+	up_read(&current->mm->mmap_sem);
 }
 EXPORT_SYMBOL_GPL(set_cr3);
 
@@ -1211,12 +1207,12 @@ static int kvm_vm_ioctl_set_nr_mmu_pages(struct kvm *kvm,
 	if (kvm_nr_mmu_pages < KVM_MIN_ALLOC_MMU_PAGES)
 		return -EINVAL;
 
-	mutex_lock(&kvm->lock);
+	down_write(&current->mm->mmap_sem);
 
 	kvm_mmu_change_mmu_pages(kvm, kvm_nr_mmu_pages);
 	kvm->arch.n_requested_mmu_pages = kvm_nr_mmu_pages;
 
-	mutex_unlock(&kvm->lock);
+	up_write(&current->mm->mmap_sem);
 	return 0;
 }
 
@@ -1265,7 +1261,7 @@ static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm,
 	    < alias->target_phys_addr)
 		goto out;
 
-	mutex_lock(&kvm->lock);
+	down_write(&current->mm->mmap_sem);
 
 	p = &kvm->arch.aliases[alias->slot];
 	p->base_gfn = alias->guest_phys_addr >> PAGE_SHIFT;
@@ -1279,7 +1275,7 @@ static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm,
 
 	kvm_mmu_zap_all(kvm);
 
-	mutex_unlock(&kvm->lock);
+	up_write(&current->mm->mmap_sem);
 
 	return 0;
 
@@ -1355,7 +1351,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 	struct kvm_memory_slot *memslot;
 	int is_dirty = 0;
 
-	mutex_lock(&kvm->lock);
+	down_write(&current->mm->mmap_sem);
 
 	r = kvm_get_dirty_log(kvm, log, &is_dirty);
 	if (r)
@@ -1371,7 +1367,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 	}
 	r = 0;
 out:
-	mutex_unlock(&kvm->lock);
+	up_write(&current->mm->mmap_sem);
 	return r;
 }
 
@@ -1565,25 +1561,32 @@ int emulator_read_std(unsigned long addr,
 			     struct kvm_vcpu *vcpu)
 {
 	void *data = val;
+	int r = X86EMUL_CONTINUE;
 
+	down_read(&current->mm->mmap_sem);
 	while (bytes) {
 		gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
 		unsigned offset = addr & (PAGE_SIZE-1);
 		unsigned tocopy = min(bytes, (unsigned)PAGE_SIZE - offset);
 		int ret;
 
-		if (gpa == UNMAPPED_GVA)
-			return X86EMUL_PROPAGATE_FAULT;
+		if (gpa == UNMAPPED_GVA) {
+			r = X86EMUL_PROPAGATE_FAULT;
+			goto out;
+		}
 		ret = kvm_read_guest(vcpu->kvm, gpa, data, tocopy);
-		if (ret < 0)
-			return X86EMUL_UNHANDLEABLE;
+		if (ret < 0) {
+			r = X86EMUL_UNHANDLEABLE;
+			goto out;
+		}
 
 		bytes -= tocopy;
 		data += tocopy;
 		addr += tocopy;
 	}
-
-	return X86EMUL_CONTINUE;
+out:
+	up_read(&current->mm->mmap_sem);
+	return r;
 }
 EXPORT_SYMBOL_GPL(emulator_read_std);
 
@@ -1601,7 +1604,9 @@ static int emulator_read_emulated(unsigned long addr,
 		return X86EMUL_CONTINUE;
 	}
 
+	down_read(&current->mm->mmap_sem);
 	gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
+	up_read(&current->mm->mmap_sem);
 
 	/* For APIC access vmexit */
 	if ((gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
@@ -1617,11 +1622,14 @@ mmio:
 	/*
 	 * Is this MMIO handled locally?
 	 */
+	mutex_lock(&vcpu->kvm->lock);
 	mmio_dev = vcpu_find_mmio_dev(vcpu, gpa);
 	if (mmio_dev) {
 		kvm_iodevice_read(mmio_dev, gpa, bytes, val);
+		mutex_unlock(&vcpu->kvm->lock);
 		return X86EMUL_CONTINUE;
 	}
+	mutex_unlock(&vcpu->kvm->lock);
 
 	vcpu->mmio_needed = 1;
 	vcpu->mmio_phys_addr = gpa;
@@ -1636,10 +1644,14 @@ static int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
 {
 	int ret;
 
+	down_read(&current->mm->mmap_sem);
 	ret = kvm_write_guest(vcpu->kvm, gpa, val, bytes);
-	if (ret < 0)
+	if (ret < 0) {
+		up_read(&current->mm->mmap_sem);
 		return 0;
+	}
 	kvm_mmu_pte_write(vcpu, gpa, val, bytes);
+	up_read(&current->mm->mmap_sem);
 	return 1;
 }
 
@@ -1649,7 +1661,11 @@ static int emulator_write_emulated_onepage(unsigned long addr,
 					   struct kvm_vcpu *vcpu)
 {
 	struct kvm_io_device *mmio_dev;
-	gpa_t                 gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
+	gpa_t                 gpa;
+
+	down_read(&current->mm->mmap_sem);
+	gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
+	up_read(&current->mm->mmap_sem);
 
 	if (gpa == UNMAPPED_GVA) {
 		kvm_inject_page_fault(vcpu, addr, 2);
@@ -1667,11 +1683,14 @@ mmio:
 	/*
 	 * Is this MMIO handled locally?
 	 */
+	mutex_lock(&vcpu->kvm->lock);
 	mmio_dev = vcpu_find_mmio_dev(vcpu, gpa);
 	if (mmio_dev) {
 		kvm_iodevice_write(mmio_dev, gpa, bytes, val);
+		mutex_unlock(&vcpu->kvm->lock);
 		return X86EMUL_CONTINUE;
 	}
+	mutex_unlock(&vcpu->kvm->lock);
 
 	vcpu->mmio_needed = 1;
 	vcpu->mmio_phys_addr = gpa;
@@ -1718,11 +1737,14 @@ static int emulator_cmpxchg_emulated(unsigned long addr,
 #ifndef CONFIG_X86_64
 	/* guests cmpxchg8b have to be emulated atomically */
 	if (bytes == 8) {
-		gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
+		gpa_t gpa;
 		struct page *page;
 		char *addr;
 		u64 val;
 
+		down_read(&current->mm->mmap_sem);
+		gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
+
 		if (gpa == UNMAPPED_GVA ||
 		   (gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
 			goto emul_write;
@@ -1736,8 +1758,9 @@ static int emulator_cmpxchg_emulated(unsigned long addr,
 		set_64bit((u64 *)(addr + offset_in_page(gpa)), val);
 		kunmap_atomic(addr, KM_USER0);
 		kvm_release_page_dirty(page);
+	emul_write:
+		up_read(&current->mm->mmap_sem);
 	}
-emul_write:
 #endif
 
 	return emulator_write_emulated(addr, new, bytes, vcpu);
@@ -2118,10 +2141,10 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
 		kvm_x86_ops->skip_emulated_instruction(vcpu);
 
 	for (i = 0; i < nr_pages; ++i) {
-		mutex_lock(&vcpu->kvm->lock);
+		down_read(&current->mm->mmap_sem);
 		page = gva_to_page(vcpu, address + i * PAGE_SIZE);
 		vcpu->arch.pio.guest_pages[i] = page;
-		mutex_unlock(&vcpu->kvm->lock);
+		up_read(&current->mm->mmap_sem);
 		if (!page) {
 			kvm_inject_gp(vcpu, 0);
 			free_pio_guest_pages(vcpu);
@@ -2247,7 +2270,6 @@ int kvm_fix_hypercall(struct kvm_vcpu *vcpu)
 	char instruction[3];
 	int ret = 0;
 
-	mutex_lock(&vcpu->kvm->lock);
 
 	/*
 	 * Blow out the MMU to ensure that no other VCPU has an active mapping
@@ -2262,8 +2284,6 @@ int kvm_fix_hypercall(struct kvm_vcpu *vcpu)
 	    != X86EMUL_CONTINUE)
 		ret = -EFAULT;
 
-	mutex_unlock(&vcpu->kvm->lock);
-
 	return ret;
 }
 
@@ -2447,8 +2467,10 @@ static void vapic_enter(struct kvm_vcpu *vcpu)
 	if (!apic || !apic->vapic_addr)
 		return;
 
+	down_read(&current->mm->mmap_sem);
 	page = gfn_to_page(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT);
 	vcpu->arch.apic->vapic_page = page;
+	up_read(&current->mm->mmap_sem);
 }
 
 static void vapic_exit(struct kvm_vcpu *vcpu)
@@ -2910,13 +2932,13 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
 	gpa_t gpa;
 
 	vcpu_load(vcpu);
-	mutex_lock(&vcpu->kvm->lock);
+	down_read(&current->mm->mmap_sem);
 	gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, vaddr);
+	up_read(&current->mm->mmap_sem);
 	tr->physical_address = gpa;
 	tr->valid = gpa != UNMAPPED_GVA;
 	tr->writeable = 1;
 	tr->usermode = 0;
-	mutex_unlock(&vcpu->kvm->lock);
 	vcpu_put(vcpu);
 
 	return 0;
@@ -3185,13 +3207,11 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
 	 */
 	if (!user_alloc) {
 		if (npages && !old.rmap) {
-			down_write(&current->mm->mmap_sem);
 			memslot->userspace_addr = do_mmap(NULL, 0,
 						     npages * PAGE_SIZE,
 						     PROT_READ | PROT_WRITE,
 						     MAP_SHARED | MAP_ANONYMOUS,
 						     0);
-			up_write(&current->mm->mmap_sem);
 
 			if (IS_ERR((void *)memslot->userspace_addr))
 				return PTR_ERR((void *)memslot->userspace_addr);
@@ -3199,10 +3219,8 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
 			if (!old.user_alloc && old.rmap) {
 				int ret;
 
-				down_write(&current->mm->mmap_sem);
 				ret = do_munmap(current->mm, old.userspace_addr,
 						old.npages * PAGE_SIZE);
-				up_write(&current->mm->mmap_sem);
 				if (ret < 0)
 					printk(KERN_WARNING
 				       "kvm_vm_ioctl_set_memory_region: "
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 4026d7d64296..678e80561b74 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -227,7 +227,7 @@ static int kvm_vm_release(struct inode *inode, struct file *filp)
  *
  * Discontiguous memory is allowed, mostly for framebuffers.
  *
- * Must be called holding kvm->lock.
+ * Must be called holding mmap_sem for write.
  */
 int __kvm_set_memory_region(struct kvm *kvm,
 			    struct kvm_userspace_memory_region *mem,
@@ -338,9 +338,9 @@ int kvm_set_memory_region(struct kvm *kvm,
 {
 	int r;
 
-	mutex_lock(&kvm->lock);
+	down_write(&current->mm->mmap_sem);
 	r = __kvm_set_memory_region(kvm, mem, user_alloc);
-	mutex_unlock(&kvm->lock);
+	up_write(&current->mm->mmap_sem);
 	return r;
 }
 EXPORT_SYMBOL_GPL(kvm_set_memory_region);
@@ -456,7 +456,7 @@ static unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn)
 /*
  * Requires current->mm->mmap_sem to be held
  */
-static struct page *__gfn_to_page(struct kvm *kvm, gfn_t gfn)
+struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn)
 {
 	struct page *page[1];
 	unsigned long addr;
@@ -481,17 +481,6 @@ static struct page *__gfn_to_page(struct kvm *kvm, gfn_t gfn)
 	return page[0];
 }
 
-struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn)
-{
-	struct page *page;
-
-	down_read(&current->mm->mmap_sem);
-	page = __gfn_to_page(kvm, gfn);
-	up_read(&current->mm->mmap_sem);
-
-	return page;
-}
-
 EXPORT_SYMBOL_GPL(gfn_to_page);
 
 void kvm_release_page_clean(struct page *page)
@@ -977,8 +966,7 @@ static int kvm_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 
 	if (!kvm_is_visible_gfn(kvm, vmf->pgoff))
 		return VM_FAULT_SIGBUS;
-	/* current->mm->mmap_sem is already held so call lockless version */
-	page = __gfn_to_page(kvm, vmf->pgoff);
+	page = gfn_to_page(kvm, vmf->pgoff);
 	if (is_error_page(page)) {
 		kvm_release_page_clean(page);
 		return VM_FAULT_SIGBUS;
-- 
cgit v1.2.3-59-g8ed1b


From 7ec54588210df29ea637e6054489bc942c0ef371 Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Thu, 20 Dec 2007 19:18:23 -0500
Subject: KVM: Add kvm_read_guest_atomic()

In preparation for a mmu spinlock, add kvm_read_guest_atomic()
and use it in fetch() and prefetch_page().

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/paging_tmpl.h | 28 ++++++++++++++++------------
 include/linux/kvm_host.h   |  2 ++
 virt/kvm/kvm_main.c        | 20 ++++++++++++++++++++
 3 files changed, 38 insertions(+), 12 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 7f83f5557d5e..136a65d72b0a 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -316,10 +316,12 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
 					       metaphysical, access,
 					       shadow_ent, &new_page);
 		if (new_page && !metaphysical) {
+			int r;
 			pt_element_t curr_pte;
-			kvm_read_guest(vcpu->kvm, walker->pte_gpa[level - 2],
-				       &curr_pte, sizeof(curr_pte));
-			if (curr_pte != walker->ptes[level - 2])
+			r = kvm_read_guest_atomic(vcpu->kvm,
+						  walker->pte_gpa[level - 2],
+						  &curr_pte, sizeof(curr_pte));
+			if (r || curr_pte != walker->ptes[level - 2])
 				return NULL;
 		}
 		shadow_addr = __pa(shadow_page->spt);
@@ -429,9 +431,8 @@ static gpa_t FNAME(gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t vaddr)
 static void FNAME(prefetch_page)(struct kvm_vcpu *vcpu,
 				 struct kvm_mmu_page *sp)
 {
-	int i, offset = 0;
-	pt_element_t *gpt;
-	struct page *page;
+	int i, offset = 0, r = 0;
+	pt_element_t pt;
 
 	if (sp->role.metaphysical
 	    || (PTTYPE == 32 && sp->role.level > PT_PAGE_TABLE_LEVEL)) {
@@ -441,15 +442,18 @@ static void FNAME(prefetch_page)(struct kvm_vcpu *vcpu,
 
 	if (PTTYPE == 32)
 		offset = sp->role.quadrant << PT64_LEVEL_BITS;
-	page = gfn_to_page(vcpu->kvm, sp->gfn);
-	gpt = kmap_atomic(page, KM_USER0);
-	for (i = 0; i < PT64_ENT_PER_PAGE; ++i)
-		if (is_present_pte(gpt[offset + i]))
+
+	for (i = 0; i < PT64_ENT_PER_PAGE; ++i) {
+		gpa_t pte_gpa = gfn_to_gpa(sp->gfn);
+		pte_gpa += (i+offset) * sizeof(pt_element_t);
+
+		r = kvm_read_guest_atomic(vcpu->kvm, pte_gpa, &pt,
+					  sizeof(pt_element_t));
+		if (r || is_present_pte(pt))
 			sp->spt[i] = shadow_trap_nonpresent_pte;
 		else
 			sp->spt[i] = shadow_notrap_nonpresent_pte;
-	kunmap_atomic(gpt, KM_USER0);
-	kvm_release_page_clean(page);
+	}
 }
 
 #undef pt_element_t
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 9ff5904c5072..a020fb280540 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -167,6 +167,8 @@ void kvm_release_page_clean(struct page *page);
 void kvm_release_page_dirty(struct page *page);
 int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
 			int len);
+int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
+			  unsigned long len);
 int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
 int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
 			 int offset, int len);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 678e80561b74..8d0b7c16c2f7 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -541,6 +541,26 @@ int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len)
 }
 EXPORT_SYMBOL_GPL(kvm_read_guest);
 
+int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
+			  unsigned long len)
+{
+	int r;
+	unsigned long addr;
+	gfn_t gfn = gpa >> PAGE_SHIFT;
+	int offset = offset_in_page(gpa);
+
+	addr = gfn_to_hva(kvm, gfn);
+	if (kvm_is_error_hva(addr))
+		return -EFAULT;
+	pagefault_disable();
+	r = __copy_from_user_inatomic(data, (void __user *)addr + offset, len);
+	pagefault_enable();
+	if (r)
+		return -EFAULT;
+	return 0;
+}
+EXPORT_SYMBOL(kvm_read_guest_atomic);
+
 int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
 			 int offset, int len)
 {
-- 
cgit v1.2.3-59-g8ed1b


From d7824fff896a1698a07a8046dc362f4500c302f7 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Sun, 30 Dec 2007 12:29:05 +0200
Subject: KVM: MMU: Avoid calling gfn_to_page() in mmu_set_spte()

Since gfn_to_page() is a sleeping function, and we want to make the core mmu
spinlocked, we need to pass the page from the walker context (which can sleep)
to the shadow context (which cannot).

[marcelo: avoid recursive locking of mmap_sem]

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/mmu.c         | 55 +++++++++++++++++++++++++++++++++++++++++-----
 arch/x86/kvm/paging_tmpl.h | 23 ++++++++++++++-----
 include/asm-x86/kvm_host.h |  5 +++++
 3 files changed, 73 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 3b91227969a5..c0b757be7b99 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -890,11 +890,10 @@ struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva)
 static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
 			 unsigned pt_access, unsigned pte_access,
 			 int user_fault, int write_fault, int dirty,
-			 int *ptwrite, gfn_t gfn)
+			 int *ptwrite, gfn_t gfn, struct page *page)
 {
 	u64 spte;
 	int was_rmapped = is_rmap_pte(*shadow_pte);
-	struct page *page;
 
 	pgprintk("%s: spte %llx access %x write_fault %d"
 		 " user_fault %d gfn %lx\n",
@@ -912,8 +911,6 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
 	if (!(pte_access & ACC_EXEC_MASK))
 		spte |= PT64_NX_MASK;
 
-	page = gfn_to_page(vcpu->kvm, gfn);
-
 	spte |= PT_PRESENT_MASK;
 	if (pte_access & ACC_USER_MASK)
 		spte |= PT_USER_MASK;
@@ -979,6 +976,11 @@ static int __nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
 	int level = PT32E_ROOT_LEVEL;
 	hpa_t table_addr = vcpu->arch.mmu.root_hpa;
 	int pt_write = 0;
+	struct page *page;
+
+	down_read(&current->mm->mmap_sem);
+	page = gfn_to_page(vcpu->kvm, gfn);
+	up_read(&current->mm->mmap_sem);
 
 	for (; ; level--) {
 		u32 index = PT64_INDEX(v, level);
@@ -989,7 +991,7 @@ static int __nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
 
 		if (level == 1) {
 			mmu_set_spte(vcpu, &table[index], ACC_ALL, ACC_ALL,
-				     0, write, 1, &pt_write, gfn);
+				     0, write, 1, &pt_write, gfn, page);
 			return pt_write || is_io_pte(table[index]);
 		}
 
@@ -1005,6 +1007,7 @@ static int __nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
 						     NULL);
 			if (!new_table) {
 				pgprintk("nonpaging_map: ENOMEM\n");
+				kvm_release_page_clean(page);
 				return -ENOMEM;
 			}
 
@@ -1347,6 +1350,43 @@ static bool last_updated_pte_accessed(struct kvm_vcpu *vcpu)
 	return !!(spte && (*spte & PT_ACCESSED_MASK));
 }
 
+static void mmu_guess_page_from_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
+					  const u8 *new, int bytes)
+{
+	gfn_t gfn;
+	int r;
+	u64 gpte = 0;
+
+	if (bytes != 4 && bytes != 8)
+		return;
+
+	/*
+	 * Assume that the pte write on a page table of the same type
+	 * as the current vcpu paging mode.  This is nearly always true
+	 * (might be false while changing modes).  Note it is verified later
+	 * by update_pte().
+	 */
+	if (is_pae(vcpu)) {
+		/* Handle a 32-bit guest writing two halves of a 64-bit gpte */
+		if ((bytes == 4) && (gpa % 4 == 0)) {
+			r = kvm_read_guest(vcpu->kvm, gpa & ~(u64)7, &gpte, 8);
+			if (r)
+				return;
+			memcpy((void *)&gpte + (gpa % 8), new, 4);
+		} else if ((bytes == 8) && (gpa % 8 == 0)) {
+			memcpy((void *)&gpte, new, 8);
+		}
+	} else {
+		if ((bytes == 4) && (gpa % 4 == 0))
+			memcpy((void *)&gpte, new, 4);
+	}
+	if (!is_present_pte(gpte))
+		return;
+	gfn = (gpte & PT64_BASE_ADDR_MASK) >> PAGE_SHIFT;
+	vcpu->arch.update_pte.gfn = gfn;
+	vcpu->arch.update_pte.page = gfn_to_page(vcpu->kvm, gfn);
+}
+
 void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
 		       const u8 *new, int bytes)
 {
@@ -1367,6 +1407,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
 	int npte;
 
 	pgprintk("%s: gpa %llx bytes %d\n", __FUNCTION__, gpa, bytes);
+	mmu_guess_page_from_pte_write(vcpu, gpa, new, bytes);
 	mutex_lock(&vcpu->kvm->lock);
 	++vcpu->kvm->stat.mmu_pte_write;
 	kvm_mmu_audit(vcpu, "pre pte write");
@@ -1437,6 +1478,10 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
 	}
 	kvm_mmu_audit(vcpu, "post pte write");
 	mutex_unlock(&vcpu->kvm->lock);
+	if (vcpu->arch.update_pte.page) {
+		kvm_release_page_clean(vcpu->arch.update_pte.page);
+		vcpu->arch.update_pte.page = NULL;
+	}
 }
 
 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 136a65d72b0a..3d7846ba26e1 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -245,6 +245,7 @@ static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *page,
 {
 	pt_element_t gpte;
 	unsigned pte_access;
+	struct page *npage;
 
 	gpte = *(const pt_element_t *)pte;
 	if (~gpte & (PT_PRESENT_MASK | PT_ACCESSED_MASK)) {
@@ -256,8 +257,14 @@ static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *page,
 		return;
 	pgprintk("%s: gpte %llx spte %p\n", __FUNCTION__, (u64)gpte, spte);
 	pte_access = page->role.access & FNAME(gpte_access)(vcpu, gpte);
+	if (gpte_to_gfn(gpte) != vcpu->arch.update_pte.gfn)
+		return;
+	npage = vcpu->arch.update_pte.page;
+	if (!npage)
+		return;
+	get_page(npage);
 	mmu_set_spte(vcpu, spte, page->role.access, pte_access, 0, 0,
-		     gpte & PT_DIRTY_MASK, NULL, gpte_to_gfn(gpte));
+		     gpte & PT_DIRTY_MASK, NULL, gpte_to_gfn(gpte), npage);
 }
 
 /*
@@ -265,7 +272,8 @@ static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *page,
  */
 static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
 			 struct guest_walker *walker,
-			 int user_fault, int write_fault, int *ptwrite)
+			 int user_fault, int write_fault, int *ptwrite,
+			 struct page *page)
 {
 	hpa_t shadow_addr;
 	int level;
@@ -321,8 +329,10 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
 			r = kvm_read_guest_atomic(vcpu->kvm,
 						  walker->pte_gpa[level - 2],
 						  &curr_pte, sizeof(curr_pte));
-			if (r || curr_pte != walker->ptes[level - 2])
+			if (r || curr_pte != walker->ptes[level - 2]) {
+				kvm_release_page_clean(page);
 				return NULL;
+			}
 		}
 		shadow_addr = __pa(shadow_page->spt);
 		shadow_pte = shadow_addr | PT_PRESENT_MASK | PT_ACCESSED_MASK
@@ -333,7 +343,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
 	mmu_set_spte(vcpu, shadow_ent, access, walker->pte_access & access,
 		     user_fault, write_fault,
 		     walker->ptes[walker->level-1] & PT_DIRTY_MASK,
-		     ptwrite, walker->gfn);
+		     ptwrite, walker->gfn, page);
 
 	return shadow_ent;
 }
@@ -362,6 +372,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
 	u64 *shadow_pte;
 	int write_pt = 0;
 	int r;
+	struct page *page;
 
 	pgprintk("%s: addr %lx err %x\n", __FUNCTION__, addr, error_code);
 	kvm_mmu_audit(vcpu, "pre page fault");
@@ -388,9 +399,11 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
 		return 0;
 	}
 
+	page = gfn_to_page(vcpu->kvm, walker.gfn);
+
 	mutex_lock(&vcpu->kvm->lock);
 	shadow_pte = FNAME(fetch)(vcpu, addr, &walker, user_fault, write_fault,
-				  &write_pt);
+				  &write_pt, page);
 	pgprintk("%s: shadow pte %p %llx ptwrite %d\n", __FUNCTION__,
 		 shadow_pte, *shadow_pte, write_pt);
 
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index 44b89259f6c4..20597bc16744 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -224,6 +224,11 @@ struct kvm_vcpu_arch {
 	int   last_pt_write_count;
 	u64  *last_pte_updated;
 
+	struct {
+		gfn_t gfn;          /* presumed gfn during guest pte update */
+		struct page *page;  /* page corresponding to that gfn */
+	} update_pte;
+
 	struct i387_fxsave_struct host_fx_image;
 	struct i387_fxsave_struct guest_fx_image;
 
-- 
cgit v1.2.3-59-g8ed1b


From aaee2c94f7a1f7726e360a6cfb40173bd552bcff Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Thu, 20 Dec 2007 19:18:26 -0500
Subject: KVM: MMU: Switch to mmu spinlock

Convert the synchronization of the shadow handling to a separate mmu_lock
spinlock.

Also guard fetch() by mmap_sem in read-mode to protect against alias
and memslot changes.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/mmu.c         | 48 +++++++++++++++++++++++++---------------------
 arch/x86/kvm/paging_tmpl.h | 10 ++++++----
 arch/x86/kvm/vmx.c         |  2 --
 include/linux/kvm_host.h   |  3 ++-
 virt/kvm/kvm_main.c        |  3 +--
 5 files changed, 35 insertions(+), 31 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index c0b757be7b99..834698d24595 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -971,16 +971,12 @@ static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)
 {
 }
 
-static int __nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
+static int __nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write,
+			   gfn_t gfn, struct page *page)
 {
 	int level = PT32E_ROOT_LEVEL;
 	hpa_t table_addr = vcpu->arch.mmu.root_hpa;
 	int pt_write = 0;
-	struct page *page;
-
-	down_read(&current->mm->mmap_sem);
-	page = gfn_to_page(vcpu->kvm, gfn);
-	up_read(&current->mm->mmap_sem);
 
 	for (; ; level--) {
 		u32 index = PT64_INDEX(v, level);
@@ -1022,9 +1018,17 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
 {
 	int r;
 
-	mutex_lock(&vcpu->kvm->lock);
-	r = __nonpaging_map(vcpu, v, write, gfn);
-	mutex_unlock(&vcpu->kvm->lock);
+	struct page *page;
+
+	down_read(&current->mm->mmap_sem);
+	page = gfn_to_page(vcpu->kvm, gfn);
+
+	spin_lock(&vcpu->kvm->mmu_lock);
+	r = __nonpaging_map(vcpu, v, write, gfn, page);
+	spin_unlock(&vcpu->kvm->mmu_lock);
+
+	up_read(&current->mm->mmap_sem);
+
 	return r;
 }
 
@@ -1045,7 +1049,7 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
 
 	if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
 		return;
-	mutex_lock(&vcpu->kvm->lock);
+	spin_lock(&vcpu->kvm->mmu_lock);
 #ifdef CONFIG_X86_64
 	if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) {
 		hpa_t root = vcpu->arch.mmu.root_hpa;
@@ -1053,7 +1057,7 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
 		sp = page_header(root);
 		--sp->root_count;
 		vcpu->arch.mmu.root_hpa = INVALID_PAGE;
-		mutex_unlock(&vcpu->kvm->lock);
+		spin_unlock(&vcpu->kvm->mmu_lock);
 		return;
 	}
 #endif
@@ -1067,7 +1071,7 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
 		}
 		vcpu->arch.mmu.pae_root[i] = INVALID_PAGE;
 	}
-	mutex_unlock(&vcpu->kvm->lock);
+	spin_unlock(&vcpu->kvm->mmu_lock);
 	vcpu->arch.mmu.root_hpa = INVALID_PAGE;
 }
 
@@ -1270,9 +1274,9 @@ int kvm_mmu_load(struct kvm_vcpu *vcpu)
 	r = mmu_topup_memory_caches(vcpu);
 	if (r)
 		goto out;
-	mutex_lock(&vcpu->kvm->lock);
+	spin_lock(&vcpu->kvm->mmu_lock);
 	mmu_alloc_roots(vcpu);
-	mutex_unlock(&vcpu->kvm->lock);
+	spin_unlock(&vcpu->kvm->mmu_lock);
 	kvm_x86_ops->set_cr3(vcpu, vcpu->arch.mmu.root_hpa);
 	kvm_mmu_flush_tlb(vcpu);
 out:
@@ -1408,7 +1412,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
 
 	pgprintk("%s: gpa %llx bytes %d\n", __FUNCTION__, gpa, bytes);
 	mmu_guess_page_from_pte_write(vcpu, gpa, new, bytes);
-	mutex_lock(&vcpu->kvm->lock);
+	spin_lock(&vcpu->kvm->mmu_lock);
 	++vcpu->kvm->stat.mmu_pte_write;
 	kvm_mmu_audit(vcpu, "pre pte write");
 	if (gfn == vcpu->arch.last_pt_write_gfn
@@ -1477,7 +1481,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
 		}
 	}
 	kvm_mmu_audit(vcpu, "post pte write");
-	mutex_unlock(&vcpu->kvm->lock);
+	spin_unlock(&vcpu->kvm->mmu_lock);
 	if (vcpu->arch.update_pte.page) {
 		kvm_release_page_clean(vcpu->arch.update_pte.page);
 		vcpu->arch.update_pte.page = NULL;
@@ -1493,15 +1497,15 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
 	gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva);
 	up_read(&current->mm->mmap_sem);
 
-	mutex_lock(&vcpu->kvm->lock);
+	spin_lock(&vcpu->kvm->mmu_lock);
 	r = kvm_mmu_unprotect_page(vcpu->kvm, gpa >> PAGE_SHIFT);
-	mutex_unlock(&vcpu->kvm->lock);
+	spin_unlock(&vcpu->kvm->mmu_lock);
 	return r;
 }
 
 void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
 {
-	mutex_lock(&vcpu->kvm->lock);
+	spin_lock(&vcpu->kvm->mmu_lock);
 	while (vcpu->kvm->arch.n_free_mmu_pages < KVM_REFILL_PAGES) {
 		struct kvm_mmu_page *sp;
 
@@ -1510,7 +1514,7 @@ void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
 		kvm_mmu_zap_page(vcpu->kvm, sp);
 		++vcpu->kvm->stat.mmu_recycled;
 	}
-	mutex_unlock(&vcpu->kvm->lock);
+	spin_unlock(&vcpu->kvm->mmu_lock);
 }
 
 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code)
@@ -1642,10 +1646,10 @@ void kvm_mmu_zap_all(struct kvm *kvm)
 {
 	struct kvm_mmu_page *sp, *node;
 
-	mutex_lock(&kvm->lock);
+	spin_lock(&kvm->mmu_lock);
 	list_for_each_entry_safe(sp, node, &kvm->arch.active_mmu_pages, link)
 		kvm_mmu_zap_page(kvm, sp);
-	mutex_unlock(&kvm->lock);
+	spin_unlock(&kvm->mmu_lock);
 
 	kvm_flush_remote_tlbs(kvm);
 }
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 3d7846ba26e1..a35b83a4fef2 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -387,7 +387,6 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
 	 */
 	r = FNAME(walk_addr)(&walker, vcpu, addr, write_fault, user_fault,
 			     fetch_fault);
-	up_read(&current->mm->mmap_sem);
 
 	/*
 	 * The page is not mapped by the guest.  Let the guest handle it.
@@ -396,12 +395,13 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
 		pgprintk("%s: guest page fault\n", __FUNCTION__);
 		inject_page_fault(vcpu, addr, walker.error_code);
 		vcpu->arch.last_pt_write_count = 0; /* reset fork detector */
+		up_read(&current->mm->mmap_sem);
 		return 0;
 	}
 
 	page = gfn_to_page(vcpu->kvm, walker.gfn);
 
-	mutex_lock(&vcpu->kvm->lock);
+	spin_lock(&vcpu->kvm->mmu_lock);
 	shadow_pte = FNAME(fetch)(vcpu, addr, &walker, user_fault, write_fault,
 				  &write_pt, page);
 	pgprintk("%s: shadow pte %p %llx ptwrite %d\n", __FUNCTION__,
@@ -414,13 +414,15 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
 	 * mmio: emulate if accessible, otherwise its a guest fault.
 	 */
 	if (shadow_pte && is_io_pte(*shadow_pte)) {
-		mutex_unlock(&vcpu->kvm->lock);
+		spin_unlock(&vcpu->kvm->mmu_lock);
+		up_read(&current->mm->mmap_sem);
 		return 1;
 	}
 
 	++vcpu->stat.pf_fixed;
 	kvm_mmu_audit(vcpu, "post page fault (fixed)");
-	mutex_unlock(&vcpu->kvm->lock);
+	spin_unlock(&vcpu->kvm->mmu_lock);
+	up_read(&current->mm->mmap_sem);
 
 	return write_pt;
 }
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index c39493feba46..3d251f894a8d 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1477,7 +1477,6 @@ static int alloc_apic_access_page(struct kvm *kvm)
 	struct kvm_userspace_memory_region kvm_userspace_mem;
 	int r = 0;
 
-	mutex_lock(&kvm->lock);
 	down_write(&current->mm->mmap_sem);
 	if (kvm->arch.apic_access_page)
 		goto out;
@@ -1491,7 +1490,6 @@ static int alloc_apic_access_page(struct kvm *kvm)
 	kvm->arch.apic_access_page = gfn_to_page(kvm, 0xfee00);
 out:
 	up_write(&current->mm->mmap_sem);
-	mutex_unlock(&kvm->lock);
 	return r;
 }
 
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index a020fb280540..2714068ee8bc 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -104,7 +104,8 @@ struct kvm_memory_slot {
 };
 
 struct kvm {
-	struct mutex lock; /* protects everything except vcpus */
+	struct mutex lock; /* protects the vcpus array and APIC accesses */
+	spinlock_t mmu_lock;
 	struct mm_struct *mm; /* userspace tied to this vm */
 	int nmemslots;
 	struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 8d0b7c16c2f7..3c4fe26096fc 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -165,6 +165,7 @@ static struct kvm *kvm_create_vm(void)
 
 	kvm->mm = current->mm;
 	atomic_inc(&kvm->mm->mm_count);
+	spin_lock_init(&kvm->mmu_lock);
 	kvm_io_bus_init(&kvm->pio_bus);
 	mutex_init(&kvm->lock);
 	kvm_io_bus_init(&kvm->mmio_bus);
@@ -552,9 +553,7 @@ int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
 	addr = gfn_to_hva(kvm, gfn);
 	if (kvm_is_error_hva(addr))
 		return -EFAULT;
-	pagefault_disable();
 	r = __copy_from_user_inatomic(data, (void __user *)addr + offset, len);
-	pagefault_enable();
 	if (r)
 		return -EFAULT;
 	return 0;
-- 
cgit v1.2.3-59-g8ed1b


From eb787d10af8045dd00d4d4c9a8e90fa495f1b0c1 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Mon, 31 Dec 2007 15:27:49 +0200
Subject: KVM: MMU: Move kvm_free_some_pages() into critical section

If some other cpu steals mmu pages between our check and an attempt to
allocate, we can run out of mmu pages.  Fix by moving the check into the
same critical section as the allocation.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/mmu.c         | 9 +++------
 arch/x86/kvm/paging_tmpl.h | 1 +
 2 files changed, 4 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 834698d24595..c478ee25de66 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -291,7 +291,6 @@ static int mmu_topup_memory_caches(struct kvm_vcpu *vcpu)
 {
 	int r;
 
-	kvm_mmu_free_some_pages(vcpu);
 	r = mmu_topup_memory_cache(&vcpu->arch.mmu_pte_chain_cache,
 				   pte_chain_cache, 4);
 	if (r)
@@ -569,9 +568,6 @@ static struct kvm_mmu_page *kvm_mmu_alloc_page(struct kvm_vcpu *vcpu,
 {
 	struct kvm_mmu_page *sp;
 
-	if (!vcpu->kvm->arch.n_free_mmu_pages)
-		return NULL;
-
 	sp = mmu_memory_cache_alloc(&vcpu->arch.mmu_page_header_cache, sizeof *sp);
 	sp->spt = mmu_memory_cache_alloc(&vcpu->arch.mmu_page_cache, PAGE_SIZE);
 	sp->gfns = mmu_memory_cache_alloc(&vcpu->arch.mmu_page_cache, PAGE_SIZE);
@@ -1024,6 +1020,7 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
 	page = gfn_to_page(vcpu->kvm, gfn);
 
 	spin_lock(&vcpu->kvm->mmu_lock);
+	kvm_mmu_free_some_pages(vcpu);
 	r = __nonpaging_map(vcpu, v, write, gfn, page);
 	spin_unlock(&vcpu->kvm->mmu_lock);
 
@@ -1275,6 +1272,7 @@ int kvm_mmu_load(struct kvm_vcpu *vcpu)
 	if (r)
 		goto out;
 	spin_lock(&vcpu->kvm->mmu_lock);
+	kvm_mmu_free_some_pages(vcpu);
 	mmu_alloc_roots(vcpu);
 	spin_unlock(&vcpu->kvm->mmu_lock);
 	kvm_x86_ops->set_cr3(vcpu, vcpu->arch.mmu.root_hpa);
@@ -1413,6 +1411,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
 	pgprintk("%s: gpa %llx bytes %d\n", __FUNCTION__, gpa, bytes);
 	mmu_guess_page_from_pte_write(vcpu, gpa, new, bytes);
 	spin_lock(&vcpu->kvm->mmu_lock);
+	kvm_mmu_free_some_pages(vcpu);
 	++vcpu->kvm->stat.mmu_pte_write;
 	kvm_mmu_audit(vcpu, "pre pte write");
 	if (gfn == vcpu->arch.last_pt_write_gfn
@@ -1505,7 +1504,6 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
 
 void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
 {
-	spin_lock(&vcpu->kvm->mmu_lock);
 	while (vcpu->kvm->arch.n_free_mmu_pages < KVM_REFILL_PAGES) {
 		struct kvm_mmu_page *sp;
 
@@ -1514,7 +1512,6 @@ void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
 		kvm_mmu_zap_page(vcpu->kvm, sp);
 		++vcpu->kvm->stat.mmu_recycled;
 	}
-	spin_unlock(&vcpu->kvm->mmu_lock);
 }
 
 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code)
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index a35b83a4fef2..349920556be3 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -402,6 +402,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
 	page = gfn_to_page(vcpu->kvm, walker.gfn);
 
 	spin_lock(&vcpu->kvm->mmu_lock);
+	kvm_mmu_free_some_pages(vcpu);
 	shadow_pte = FNAME(fetch)(vcpu, addr, &walker, user_fault, write_fault,
 				  &write_pt, page);
 	pgprintk("%s: shadow pte %p %llx ptwrite %d\n", __FUNCTION__,
-- 
cgit v1.2.3-59-g8ed1b


From 5882842f9b86179e1fe2e17e35e0e46a268d04e4 Mon Sep 17 00:00:00 2001
From: "Dong, Eddie" <eddie.dong@intel.com>
Date: Wed, 2 Jan 2008 14:29:08 +0800
Subject: KVM: MMU: Merge shadow level check in FNAME(fetch)

Remove the redundant level check when fetching
shadow pte for present & non-present spte.

Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/paging_tmpl.h | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 349920556be3..03ba8608fe0f 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -300,16 +300,13 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
 		bool new_page = 0;
 
 		shadow_ent = ((u64 *)__va(shadow_addr)) + index;
+		if (level == PT_PAGE_TABLE_LEVEL)
+			break;
 		if (is_shadow_present_pte(*shadow_ent)) {
-			if (level == PT_PAGE_TABLE_LEVEL)
-				break;
 			shadow_addr = *shadow_ent & PT64_BASE_ADDR_MASK;
 			continue;
 		}
 
-		if (level == PT_PAGE_TABLE_LEVEL)
-			break;
-
 		if (level - 1 == PT_PAGE_TABLE_LEVEL
 		    && walker->level == PT_DIRECTORY_LEVEL) {
 			metaphysical = 1;
-- 
cgit v1.2.3-59-g8ed1b


From 571008daccc17c03ccec810922c2bcaed86b15c1 Mon Sep 17 00:00:00 2001
From: Sheng Yang <sheng.yang@intel.com>
Date: Wed, 2 Jan 2008 14:49:22 +0800
Subject: KVM: x86 emulator: Only allow VMCALL/VMMCALL trapped by #UD

When executing a test program called "crashme", we found the KVM guest cannot
survive more than ten seconds, then encounterd kernel panic. The basic concept
of "crashme" is generating random assembly code and trying to execute it.

After some fixes on emulator insn validity judgment, we found it's hard to
get the current emulator handle the invalid instructions correctly, for the
#UD trap for hypercall patching caused troubles. The problem is, if the opcode
itself was OK, but combination of opcode and modrm_reg was invalid, and one
operand of the opcode was memory (SrcMem or DstMem), the emulator will fetch
the memory operand first rather than checking the validity, and may encounter
an error there. For example, ".byte 0xfe, 0x34, 0xcd" has this problem.

In the patch, we simply check that if the invalid opcode wasn't vmcall/vmmcall,
then return from emulate_instruction() and inject a #UD to guest. With the
patch, the guest had been running for more than 12 hours.

Signed-off-by: Feng (Eric) Liu <eric.e.liu@intel.com>
Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/svm.c         |  2 +-
 arch/x86/kvm/vmx.c         |  2 +-
 arch/x86/kvm/x86.c         | 18 +++++++++++++++---
 include/asm-x86/kvm_host.h |  4 +++-
 4 files changed, 20 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 33f77b044c52..de755cb1431d 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -942,7 +942,7 @@ static int ud_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
 {
 	int er;
 
-	er = emulate_instruction(&svm->vcpu, kvm_run, 0, 0, 0);
+	er = emulate_instruction(&svm->vcpu, kvm_run, 0, 0, EMULTYPE_TRAP_UD);
 	if (er != EMULATE_DONE)
 		kvm_queue_exception(&svm->vcpu, UD_VECTOR);
 	return 1;
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 3d251f894a8d..ad36447e696e 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1863,7 +1863,7 @@ static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 	}
 
 	if (is_invalid_opcode(intr_info)) {
-		er = emulate_instruction(vcpu, kvm_run, 0, 0, 0);
+		er = emulate_instruction(vcpu, kvm_run, 0, 0, EMULTYPE_TRAP_UD);
 		if (er != EMULATE_DONE)
 			kvm_queue_exception(vcpu, UD_VECTOR);
 		return 1;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e3b3141db13c..8a90403272e2 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1840,9 +1840,10 @@ int emulate_instruction(struct kvm_vcpu *vcpu,
 			struct kvm_run *run,
 			unsigned long cr2,
 			u16 error_code,
-			int no_decode)
+			int emulation_type)
 {
 	int r;
+	struct decode_cache *c;
 
 	vcpu->arch.mmio_fault_cr2 = cr2;
 	kvm_x86_ops->cache_regs(vcpu);
@@ -1850,7 +1851,7 @@ int emulate_instruction(struct kvm_vcpu *vcpu,
 	vcpu->mmio_is_write = 0;
 	vcpu->arch.pio.string = 0;
 
-	if (!no_decode) {
+	if (!(emulation_type & EMULTYPE_NO_DECODE)) {
 		int cs_db, cs_l;
 		kvm_x86_ops->get_cs_db_l_bits(vcpu, &cs_db, &cs_l);
 
@@ -1884,6 +1885,16 @@ int emulate_instruction(struct kvm_vcpu *vcpu,
 					get_segment_base(vcpu, VCPU_SREG_FS);
 
 		r = x86_decode_insn(&vcpu->arch.emulate_ctxt, &emulate_ops);
+
+		/* Reject the instructions other than VMCALL/VMMCALL when
+		 * try to emulate invalid opcode */
+		c = &vcpu->arch.emulate_ctxt.decode;
+		if ((emulation_type & EMULTYPE_TRAP_UD) &&
+		    (!(c->twobyte && c->b == 0x01 &&
+		      (c->modrm_reg == 0 || c->modrm_reg == 3) &&
+		       c->modrm_mod == 3 && c->modrm_rm == 1)))
+			return EMULATE_FAIL;
+
 		++vcpu->stat.insn_emulation;
 		if (r)  {
 			++vcpu->stat.insn_emulation_fail;
@@ -2640,7 +2651,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 		vcpu->mmio_read_completed = 1;
 		vcpu->mmio_needed = 0;
 		r = emulate_instruction(vcpu, kvm_run,
-					vcpu->arch.mmio_fault_cr2, 0, 1);
+					vcpu->arch.mmio_fault_cr2, 0,
+					EMULTYPE_NO_DECODE);
 		if (r == EMULATE_DO_MMIO) {
 			/*
 			 * Read-modify-write.  Back to userspace.
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index 20597bc16744..4702b04b979a 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -415,8 +415,10 @@ enum emulation_result {
 	EMULATE_FAIL,         /* can't emulate this instruction */
 };
 
+#define EMULTYPE_NO_DECODE	    (1 << 0)
+#define EMULTYPE_TRAP_UD	    (1 << 1)
 int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run,
-			unsigned long cr2, u16 error_code, int no_decode);
+			unsigned long cr2, u16 error_code, int emulation_type);
 void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context);
 void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
 void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
-- 
cgit v1.2.3-59-g8ed1b


From 75e68e607896c84310dee37c783c45220e56ce8c Mon Sep 17 00:00:00 2001
From: Izik Eidus <izike@qumranet.com>
Date: Sat, 12 Jan 2008 23:49:09 +0200
Subject: KVM: MMU: Fix dirty page setting for pages removed from rmap

Right now rmap_remove won't set the page as dirty if the shadow pte
pointed to this page had write access and then it became readonly.
This patches fixes that, by setting the page as dirty for spte changes from
write to readonly access.

Signed-off-by: Izik Eidus <izike@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/mmu.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index c478ee25de66..8efdcdbebb03 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -890,6 +890,7 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
 {
 	u64 spte;
 	int was_rmapped = is_rmap_pte(*shadow_pte);
+	int was_writeble = is_writeble_pte(*shadow_pte);
 
 	pgprintk("%s: spte %llx access %x write_fault %d"
 		 " user_fault %d gfn %lx\n",
@@ -956,9 +957,12 @@ unshadowed:
 		rmap_add(vcpu, shadow_pte, gfn);
 		if (!is_rmap_pte(*shadow_pte))
 			kvm_release_page_clean(page);
+	} else {
+		if (was_writeble)
+			kvm_release_page_dirty(page);
+		else
+			kvm_release_page_clean(page);
 	}
-	else
-		kvm_release_page_clean(page);
 	if (!ptwrite || !*ptwrite)
 		vcpu->arch.last_pte_updated = shadow_pte;
 }
-- 
cgit v1.2.3-59-g8ed1b


From 97db56ce6cc2a0766b536cc227a1da20acc5d82f Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Sun, 13 Jan 2008 13:23:56 +0200
Subject: KVM: Initialize the mmu caches only after verifying cpu support

Otherwise we re-initialize the mmu caches, which will fail since the
caches are already registered, which will cause us to deinitialize said caches.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/x86.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8a90403272e2..77d57ff3d74e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2187,12 +2187,6 @@ int kvm_arch_init(void *opaque)
 	int r;
 	struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque;
 
-	r = kvm_mmu_module_init();
-	if (r)
-		goto out_fail;
-
-	kvm_init_msr_list();
-
 	if (kvm_x86_ops) {
 		printk(KERN_ERR "kvm: already loaded the other module\n");
 		r = -EEXIST;
@@ -2210,13 +2204,17 @@ int kvm_arch_init(void *opaque)
 		goto out;
 	}
 
+	r = kvm_mmu_module_init();
+	if (r)
+		goto out;
+
+	kvm_init_msr_list();
+
 	kvm_x86_ops = ops;
 	kvm_mmu_set_nonpresent_ptes(0ull, 0ull);
 	return 0;
 
 out:
-	kvm_mmu_module_exit();
-out_fail:
 	return r;
 }
 
-- 
cgit v1.2.3-59-g8ed1b


From 6c14280125a374d4c279a68276f97245e03e3f68 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Tue, 15 Jan 2008 18:27:32 +0200
Subject: KVM: Fix unbounded preemption latency

When preparing to enter the guest, if an interrupt comes in while
preemption is disabled but interrupts are still enabled, we miss a
preemption point.  Fix by explicitly checking whether we need to
reschedule.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/x86.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 77d57ff3d74e..f0493e7dcf0c 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2535,6 +2535,13 @@ again:
 
 	local_irq_disable();
 
+	if (need_resched()) {
+		local_irq_enable();
+		preempt_enable();
+		r = 1;
+		goto out;
+	}
+
 	if (signal_pending(current)) {
 		local_irq_enable();
 		preempt_enable();
-- 
cgit v1.2.3-59-g8ed1b


From 2f52d58c92d971bf421f461ad06eb93fb4f34981 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@qumranet.com>
Date: Wed, 16 Jan 2008 12:49:30 +0200
Subject: KVM: Move apic timer migration away from critical section

Migrating the apic timer in the critical section is not very nice, and is
absolutely horrible with the real-time port.  Move migration to the regular
vcpu execution path, triggered by a new bitflag.

Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/irq.h       | 2 +-
 arch/x86/kvm/lapic.c     | 3 +--
 arch/x86/kvm/x86.c       | 5 ++++-
 include/linux/kvm_host.h | 6 ++++++
 4 files changed, 12 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index 53c7f48254be..fa5ed5d59b5d 100644
--- a/arch/x86/kvm/irq.h
+++ b/arch/x86/kvm/irq.h
@@ -83,6 +83,6 @@ void kvm_pic_reset(struct kvm_kpic_state *s);
 void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
 void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
 void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
-void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu);
+void __kvm_migrate_apic_timer(struct kvm_vcpu *vcpu);
 
 #endif
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index e7513bb98af1..2cbee9479ce4 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1092,7 +1092,7 @@ void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu)
 	start_apic_timer(apic);
 }
 
-void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu)
+void __kvm_migrate_apic_timer(struct kvm_vcpu *vcpu)
 {
 	struct kvm_lapic *apic = vcpu->arch.apic;
 	struct hrtimer *timer;
@@ -1104,7 +1104,6 @@ void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu)
 	if (hrtimer_cancel(timer))
 		hrtimer_start(timer, timer->expires, HRTIMER_MODE_ABS);
 }
-EXPORT_SYMBOL_GPL(kvm_migrate_apic_timer);
 
 void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu)
 {
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index f0493e7dcf0c..8f94a0b89dff 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2518,13 +2518,16 @@ again:
 	if (unlikely(r))
 		goto out;
 
-	if (vcpu->requests)
+	if (vcpu->requests) {
+		if (test_and_clear_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests))
+			__kvm_migrate_apic_timer(vcpu);
 		if (test_and_clear_bit(KVM_REQ_REPORT_TPR_ACCESS,
 				       &vcpu->requests)) {
 			kvm_run->exit_reason = KVM_EXIT_TPR_ACCESS;
 			r = 0;
 			goto out;
 		}
+	}
 
 	kvm_inject_pending_timer_irqs(vcpu);
 
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 2714068ee8bc..ea4764b0a2f4 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -35,6 +35,7 @@
  * vcpu->requests bit members
  */
 #define KVM_REQ_TLB_FLUSH          0
+#define KVM_REQ_MIGRATE_TIMER      1
 #define KVM_REQ_REPORT_TPR_ACCESS  2
 
 struct kvm_vcpu;
@@ -277,6 +278,11 @@ static inline gpa_t gfn_to_gpa(gfn_t gfn)
 	return (gpa_t)gfn << PAGE_SHIFT;
 }
 
+static inline void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu)
+{
+	set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
+}
+
 enum kvm_stat_kind {
 	KVM_STAT_VM,
 	KVM_STAT_VCPU,
-- 
cgit v1.2.3-59-g8ed1b


From d3f46f39b7092594b498abc12f0c73b0b9913bde Mon Sep 17 00:00:00 2001
From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Tue, 15 Jan 2008 11:11:46 -0600
Subject: [SCSI] remove use_sg_chaining

With the sg table code, every SCSI driver is now either chain capable
or broken (or has sg_tablesize set so chaining is never activated), so
there's no need to have a check in the host template.

Also tidy up the code by moving the scatterlist size defines into the
SCSI includes and permit the last entry of the scatterlist pools not
to be a power of two.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 arch/ia64/hp/sim/simscsi.c            |  1 -
 drivers/infiniband/ulp/srp/ib_srp.c   |  1 -
 drivers/scsi/3w-9xxx.c                |  1 -
 drivers/scsi/3w-xxxx.c                |  1 -
 drivers/scsi/BusLogic.c               |  1 -
 drivers/scsi/NCR53c406a.c             |  1 -
 drivers/scsi/a100u2w.c                |  1 -
 drivers/scsi/aacraid/linit.c          |  1 -
 drivers/scsi/aha1740.c                |  1 -
 drivers/scsi/aic7xxx/aic79xx_osm.c    |  1 -
 drivers/scsi/aic7xxx/aic7xxx_osm.c    |  1 -
 drivers/scsi/aic7xxx_old.c            |  1 -
 drivers/scsi/arcmsr/arcmsr_hba.c      |  1 -
 drivers/scsi/dc395x.c                 |  1 -
 drivers/scsi/dpt_i2o.c                |  1 -
 drivers/scsi/eata.c                   |  1 -
 drivers/scsi/hosts.c                  |  1 -
 drivers/scsi/hptiop.c                 |  1 -
 drivers/scsi/ibmmca.c                 |  1 -
 drivers/scsi/ibmvscsi/ibmvscsi.c      |  1 -
 drivers/scsi/initio.c                 |  1 -
 drivers/scsi/iscsi_tcp.c              |  1 -
 drivers/scsi/lpfc/lpfc_scsi.c         |  2 -
 drivers/scsi/mac53c94.c               |  1 -
 drivers/scsi/megaraid.c               |  1 -
 drivers/scsi/megaraid/megaraid_mbox.c |  1 -
 drivers/scsi/megaraid/megaraid_sas.c  |  1 -
 drivers/scsi/mesh.c                   |  1 -
 drivers/scsi/nsp32.c                  |  1 -
 drivers/scsi/pcmcia/sym53c500_cs.c    |  1 -
 drivers/scsi/qla1280.c                |  1 -
 drivers/scsi/qla2xxx/qla_os.c         |  2 -
 drivers/scsi/qla4xxx/ql4_os.c         |  1 -
 drivers/scsi/qlogicfas.c              |  1 -
 drivers/scsi/scsi_lib.c               | 74 +++++++++--------------------------
 drivers/scsi/stex.c                   |  1 -
 drivers/scsi/sym53c416.c              |  1 -
 drivers/scsi/sym53c8xx_2/sym_glue.c   |  1 -
 drivers/scsi/u14-34f.c                |  1 -
 drivers/scsi/ultrastor.c              |  1 -
 drivers/scsi/wd7000.c                 |  1 -
 include/scsi/scsi.h                   | 19 +++++++++
 include/scsi/scsi_host.h              | 13 ------
 43 files changed, 37 insertions(+), 111 deletions(-)

(limited to 'arch')

diff --git a/arch/ia64/hp/sim/simscsi.c b/arch/ia64/hp/sim/simscsi.c
index 6ef9b5219930..7661bb065fa5 100644
--- a/arch/ia64/hp/sim/simscsi.c
+++ b/arch/ia64/hp/sim/simscsi.c
@@ -360,7 +360,6 @@ static struct scsi_host_template driver_template = {
 	.max_sectors		= 1024,
 	.cmd_per_lun		= SIMSCSI_REQ_QUEUE_LEN,
 	.use_clustering		= DISABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 };
 
 static int __init
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index f2d2c7e2c76b..195ce7c12319 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1571,7 +1571,6 @@ static struct scsi_host_template srp_template = {
 	.this_id			= -1,
 	.cmd_per_lun			= SRP_SQ_SIZE,
 	.use_clustering			= ENABLE_CLUSTERING,
-	.use_sg_chaining		= ENABLE_SG_CHAINING,
 	.shost_attrs			= srp_host_attrs
 };
 
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 1c244832c6c8..b4912d1cee2a 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -1990,7 +1990,6 @@ static struct scsi_host_template driver_template = {
 	.max_sectors		= TW_MAX_SECTORS,
 	.cmd_per_lun		= TW_MAX_CMDS_PER_LUN,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.shost_attrs		= twa_host_attrs,
 	.emulated		= 1
 };
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index 59716ebeb10c..d09532162217 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -2261,7 +2261,6 @@ static struct scsi_host_template driver_template = {
 	.max_sectors		= TW_MAX_SECTORS,
 	.cmd_per_lun		= TW_MAX_CMDS_PER_LUN,	
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.shost_attrs		= tw_host_attrs,
 	.emulated		= 1
 };
diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c
index ead47c143ce0..4d3ebb1af490 100644
--- a/drivers/scsi/BusLogic.c
+++ b/drivers/scsi/BusLogic.c
@@ -3575,7 +3575,6 @@ static struct scsi_host_template Bus_Logic_template = {
 	.unchecked_isa_dma = 1,
 	.max_sectors = 128,
 	.use_clustering = ENABLE_CLUSTERING,
-	.use_sg_chaining = ENABLE_SG_CHAINING,
 };
 
 /*
diff --git a/drivers/scsi/NCR53c406a.c b/drivers/scsi/NCR53c406a.c
index 137d065db3da..6961f78742ae 100644
--- a/drivers/scsi/NCR53c406a.c
+++ b/drivers/scsi/NCR53c406a.c
@@ -1065,7 +1065,6 @@ static struct scsi_host_template driver_template =
      .cmd_per_lun       	= 1			/* commands per lun */, 
      .unchecked_isa_dma 	= 1			/* unchecked_isa_dma */,
      .use_clustering    	= ENABLE_CLUSTERING,
-     .use_sg_chaining           = ENABLE_SG_CHAINING,
 };
 
 #include "scsi_module.c"
diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c
index d3a6d15fb77a..f608d4a1d6da 100644
--- a/drivers/scsi/a100u2w.c
+++ b/drivers/scsi/a100u2w.c
@@ -1071,7 +1071,6 @@ static struct scsi_host_template inia100_template = {
 	.sg_tablesize		= SG_ALL,
 	.cmd_per_lun 		= 1,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 };
 
 static int __devinit inia100_probe_one(struct pci_dev *pdev,
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 61be22774e99..0e8267c1e915 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1032,7 +1032,6 @@ static struct scsi_host_template aac_driver_template = {
 	.cmd_per_lun    		= AAC_NUM_IO_FIB,
 #endif
 	.use_clustering			= ENABLE_CLUSTERING,
-	.use_sg_chaining		= ENABLE_SG_CHAINING,
 	.emulated                       = 1,
 };
 
diff --git a/drivers/scsi/aha1740.c b/drivers/scsi/aha1740.c
index be58a0b097c7..7c45d88a205b 100644
--- a/drivers/scsi/aha1740.c
+++ b/drivers/scsi/aha1740.c
@@ -563,7 +563,6 @@ static struct scsi_host_template aha1740_template = {
 	.sg_tablesize     = AHA1740_SCATTER,
 	.cmd_per_lun      = AHA1740_CMDLUN,
 	.use_clustering   = ENABLE_CLUSTERING,
-	.use_sg_chaining  = ENABLE_SG_CHAINING,
 	.eh_abort_handler = aha1740_eh_abort_handler,
 };
 
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 3c4efa4ae543..014654792901 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -766,7 +766,6 @@ struct scsi_host_template aic79xx_driver_template = {
 	.max_sectors		= 8192,
 	.cmd_per_lun		= 2,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.slave_alloc		= ahd_linux_slave_alloc,
 	.slave_configure	= ahd_linux_slave_configure,
 	.target_alloc		= ahd_linux_target_alloc,
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index bff7f8c59856..99a3b33a3233 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -747,7 +747,6 @@ struct scsi_host_template aic7xxx_driver_template = {
 	.max_sectors		= 8192,
 	.cmd_per_lun		= 2,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.slave_alloc		= ahc_linux_slave_alloc,
 	.slave_configure	= ahc_linux_slave_configure,
 	.target_alloc		= ahc_linux_target_alloc,
diff --git a/drivers/scsi/aic7xxx_old.c b/drivers/scsi/aic7xxx_old.c
index bcb0b870320c..3bfd9296bbfa 100644
--- a/drivers/scsi/aic7xxx_old.c
+++ b/drivers/scsi/aic7xxx_old.c
@@ -11141,7 +11141,6 @@ static struct scsi_host_template driver_template = {
 	.max_sectors		= 2048,
 	.cmd_per_lun		= 3,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 };
 
 #include "scsi_module.c"
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index d80dba913a75..f4a202e8df26 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -122,7 +122,6 @@ static struct scsi_host_template arcmsr_scsi_host_template = {
 	.max_sectors    	= ARCMSR_MAX_XFER_SECTORS,
 	.cmd_per_lun		= ARCMSR_MAX_CMD_PERLUN,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.shost_attrs		= arcmsr_host_attrs,
 };
 #ifdef CONFIG_SCSI_ARCMSR_AER
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index f93c73c0ba53..22ef3716e786 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -4763,7 +4763,6 @@ static struct scsi_host_template dc395x_driver_template = {
 	.eh_bus_reset_handler   = dc395x_eh_bus_reset,
 	.unchecked_isa_dma      = 0,
 	.use_clustering         = DISABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 };
 
 
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 19cce125124c..c9dd8392aab2 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -3340,7 +3340,6 @@ static struct scsi_host_template driver_template = {
 	.this_id		= 7,
 	.cmd_per_lun		= 1,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 };
 #include "scsi_module.c"
 MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c
index 05163cefec12..8be3d76656fa 100644
--- a/drivers/scsi/eata.c
+++ b/drivers/scsi/eata.c
@@ -524,7 +524,6 @@ static struct scsi_host_template driver_template = {
 	.this_id = 7,
 	.unchecked_isa_dma = 1,
 	.use_clustering = ENABLE_CLUSTERING,
-	.use_sg_chaining = ENABLE_SG_CHAINING,
 };
 
 #if !defined(__BIG_ENDIAN_BITFIELD) && !defined(__LITTLE_ENDIAN_BITFIELD)
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 5ea1f986220c..880c78bff0e1 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -342,7 +342,6 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
 	shost->use_clustering = sht->use_clustering;
 	shost->ordered_tag = sht->ordered_tag;
 	shost->active_mode = sht->supported_mode;
-	shost->use_sg_chaining = sht->use_sg_chaining;
 
 	if (sht->supported_mode == MODE_UNKNOWN)
 		/* means we didn't set it ... default to INITIATOR */
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index 890f44fa0e1a..ff149ad6bc4e 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -906,7 +906,6 @@ static struct scsi_host_template driver_template = {
 	.unchecked_isa_dma          = 0,
 	.emulated                   = 0,
 	.use_clustering             = ENABLE_CLUSTERING,
-	.use_sg_chaining            = ENABLE_SG_CHAINING,
 	.proc_name                  = driver_name,
 	.shost_attrs                = hptiop_attrs,
 	.this_id                    = -1,
diff --git a/drivers/scsi/ibmmca.c b/drivers/scsi/ibmmca.c
index db004a450732..4d15a62914e9 100644
--- a/drivers/scsi/ibmmca.c
+++ b/drivers/scsi/ibmmca.c
@@ -1501,7 +1501,6 @@ static struct scsi_host_template ibmmca_driver_template = {
           .sg_tablesize   = 16,
           .cmd_per_lun    = 1,
           .use_clustering = ENABLE_CLUSTERING,
-          .use_sg_chaining = ENABLE_SG_CHAINING,
 };
 
 static int ibmmca_probe(struct device *dev)
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 30819012898f..78d46a900bb5 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -1600,7 +1600,6 @@ static struct scsi_host_template driver_template = {
 	.this_id = -1,
 	.sg_tablesize = SG_ALL,
 	.use_clustering = ENABLE_CLUSTERING,
-	.use_sg_chaining = ENABLE_SG_CHAINING,
 	.shost_attrs = ibmvscsi_attrs,
 };
 
diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c
index a10a5c74b48d..0cc8868ea35d 100644
--- a/drivers/scsi/initio.c
+++ b/drivers/scsi/initio.c
@@ -2833,7 +2833,6 @@ static struct scsi_host_template initio_template = {
 	.sg_tablesize		= SG_ALL,
 	.cmd_per_lun		= 1,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 };
 
 static int initio_probe_one(struct pci_dev *pdev,
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index e5be5fd4ef58..b6f99dfbb038 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -1933,7 +1933,6 @@ static struct scsi_host_template iscsi_sht = {
 	.eh_device_reset_handler= iscsi_eh_device_reset,
 	.eh_host_reset_handler	= iscsi_eh_host_reset,
 	.use_clustering         = DISABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.slave_configure        = iscsi_tcp_slave_configure,
 	.proc_name		= "iscsi_tcp",
 	.this_id		= -1,
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 6483c62730b3..fc5c3a42b05a 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -1459,7 +1459,6 @@ struct scsi_host_template lpfc_template = {
 	.scan_finished		= lpfc_scan_finished,
 	.this_id		= -1,
 	.sg_tablesize		= LPFC_DEFAULT_SG_SEG_CNT,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.cmd_per_lun		= LPFC_CMD_PER_LUN,
 	.use_clustering		= ENABLE_CLUSTERING,
 	.shost_attrs		= lpfc_hba_attrs,
@@ -1482,7 +1481,6 @@ struct scsi_host_template lpfc_vport_template = {
 	.sg_tablesize		= LPFC_DEFAULT_SG_SEG_CNT,
 	.cmd_per_lun		= LPFC_CMD_PER_LUN,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.shost_attrs		= lpfc_vport_attrs,
 	.max_sectors		= 0xFFFF,
 };
diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c
index a035001f4438..b12ad7c7c673 100644
--- a/drivers/scsi/mac53c94.c
+++ b/drivers/scsi/mac53c94.c
@@ -402,7 +402,6 @@ static struct scsi_host_template mac53c94_template = {
 	.sg_tablesize	= SG_ALL,
 	.cmd_per_lun	= 1,
 	.use_clustering	= DISABLE_CLUSTERING,
-	.use_sg_chaining = ENABLE_SG_CHAINING,
 };
 
 static int mac53c94_probe(struct macio_dev *mdev, const struct of_device_id *match)
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 765c24d2bc38..4d59ae8491a4 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -4490,7 +4490,6 @@ static struct scsi_host_template megaraid_template = {
 	.sg_tablesize			= MAX_SGLIST,
 	.cmd_per_lun			= DEF_CMD_PER_LUN,
 	.use_clustering			= ENABLE_CLUSTERING,
-	.use_sg_chaining		= ENABLE_SG_CHAINING,
 	.eh_abort_handler		= megaraid_abort,
 	.eh_device_reset_handler	= megaraid_reset,
 	.eh_bus_reset_handler		= megaraid_reset,
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index 24e32e446e76..6db77c00e3ee 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -361,7 +361,6 @@ static struct scsi_host_template megaraid_template_g = {
 	.eh_host_reset_handler		= megaraid_reset_handler,
 	.change_queue_depth		= megaraid_change_queue_depth,
 	.use_clustering			= ENABLE_CLUSTERING,
-	.use_sg_chaining		= ENABLE_SG_CHAINING,
 	.sdev_attrs			= megaraid_sdev_attrs,
 	.shost_attrs			= megaraid_shost_attrs,
 };
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index d7ec921865c4..672c759ac24d 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -1192,7 +1192,6 @@ static struct scsi_host_template megasas_template = {
 	.eh_timed_out = megasas_reset_timer,
 	.bios_param = megasas_bios_param,
 	.use_clustering = ENABLE_CLUSTERING,
-	.use_sg_chaining = ENABLE_SG_CHAINING,
 };
 
 /**
diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c
index 7470ff39ab22..651d09b08f2a 100644
--- a/drivers/scsi/mesh.c
+++ b/drivers/scsi/mesh.c
@@ -1843,7 +1843,6 @@ static struct scsi_host_template mesh_template = {
 	.sg_tablesize			= SG_ALL,
 	.cmd_per_lun			= 2,
 	.use_clustering			= DISABLE_CLUSTERING,
-	.use_sg_chaining		= ENABLE_SG_CHAINING,
 };
 
 static int mesh_probe(struct macio_dev *mdev, const struct of_device_id *match)
diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c
index 28161dc95e0d..7fed35372150 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -281,7 +281,6 @@ static struct scsi_host_template nsp32_template = {
 	.cmd_per_lun			= 1,
 	.this_id			= NSP32_HOST_SCSIID,
 	.use_clustering			= DISABLE_CLUSTERING,
-	.use_sg_chaining		= ENABLE_SG_CHAINING,
 	.eh_abort_handler       	= nsp32_eh_abort,
 	.eh_bus_reset_handler		= nsp32_eh_bus_reset,
 	.eh_host_reset_handler		= nsp32_eh_host_reset,
diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index 969b9387a0c3..3454a5714749 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -692,7 +692,6 @@ static struct scsi_host_template sym53c500_driver_template = {
      .sg_tablesize		= 32,
      .cmd_per_lun		= 1,
      .use_clustering		= ENABLE_CLUSTERING,
-     .use_sg_chaining		= ENABLE_SG_CHAINING,
      .shost_attrs		= SYM53C500_shost_attrs
 };
 
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index c94906abfee3..68c0d09ffe78 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -4204,7 +4204,6 @@ static struct scsi_host_template qla1280_driver_template = {
 	.sg_tablesize		= SG_ALL,
 	.cmd_per_lun		= 1,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 };
 
 
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index aba1e6d48066..3954ed2d7b51 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -131,7 +131,6 @@ static struct scsi_host_template qla2x00_driver_template = {
 	.this_id		= -1,
 	.cmd_per_lun		= 3,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.sg_tablesize		= SG_ALL,
 
 	/*
@@ -163,7 +162,6 @@ struct scsi_host_template qla24xx_driver_template = {
 	.this_id		= -1,
 	.cmd_per_lun		= 3,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.sg_tablesize		= SG_ALL,
 
 	.max_sectors		= 0xFFFF,
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index d3f86646cb08..2e2b9fedffcc 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -94,7 +94,6 @@ static struct scsi_host_template qla4xxx_driver_template = {
 	.this_id		= -1,
 	.cmd_per_lun		= 3,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.sg_tablesize		= SG_ALL,
 
 	.max_sectors		= 0xFFFF,
diff --git a/drivers/scsi/qlogicfas.c b/drivers/scsi/qlogicfas.c
index 1769f965eedf..1e874f1fb5c6 100644
--- a/drivers/scsi/qlogicfas.c
+++ b/drivers/scsi/qlogicfas.c
@@ -197,7 +197,6 @@ static struct scsi_host_template qlogicfas_driver_template = {
 	.sg_tablesize		= SG_ALL,
 	.cmd_per_lun		= 1,
 	.use_clustering		= DISABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 };
 
 static __init int qlogicfas_init(void)
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 4560713ecb14..e1c7eebfe907 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/bio.h>
+#include <linux/bitops.h>
 #include <linux/blkdev.h>
 #include <linux/completion.h>
 #include <linux/kernel.h>
@@ -34,13 +35,6 @@
 #define SG_MEMPOOL_NR		ARRAY_SIZE(scsi_sg_pools)
 #define SG_MEMPOOL_SIZE		2
 
-/*
- * The maximum number of SG segments that we will put inside a scatterlist
- * (unless chaining is used). Should ideally fit inside a single page, to
- * avoid a higher order allocation.
- */
-#define SCSI_MAX_SG_SEGMENTS	128
-
 struct scsi_host_sg_pool {
 	size_t		size;
 	char		*name;
@@ -48,19 +42,26 @@ struct scsi_host_sg_pool {
 	mempool_t	*pool;
 };
 
-#define SP(x) { x, "sgpool-" #x }
+#define SP(x) { x, "sgpool-" __stringify(x) }
+#if (SCSI_MAX_SG_SEGMENTS < 32)
+#error SCSI_MAX_SG_SEGMENTS is too small (must be 32 or greater)
+#endif
 static struct scsi_host_sg_pool scsi_sg_pools[] = {
 	SP(8),
 	SP(16),
-#if (SCSI_MAX_SG_SEGMENTS > 16)
-	SP(32),
 #if (SCSI_MAX_SG_SEGMENTS > 32)
-	SP(64),
+	SP(32),
 #if (SCSI_MAX_SG_SEGMENTS > 64)
+	SP(64),
+#if (SCSI_MAX_SG_SEGMENTS > 128)
 	SP(128),
+#if (SCSI_MAX_SG_SEGMENTS > 256)
+#error SCSI_MAX_SG_SEGMENTS is too large (256 MAX)
 #endif
 #endif
 #endif
+#endif
+	SP(SCSI_MAX_SG_SEGMENTS)
 };
 #undef SP
 
@@ -692,42 +693,16 @@ static struct scsi_cmnd *scsi_end_request(struct scsi_cmnd *cmd, int error,
 	return NULL;
 }
 
-/*
- * Like SCSI_MAX_SG_SEGMENTS, but for archs that have sg chaining. This limit
- * is totally arbitrary, a setting of 2048 will get you at least 8mb ios.
- */
-#define SCSI_MAX_SG_CHAIN_SEGMENTS	2048
-
 static inline unsigned int scsi_sgtable_index(unsigned short nents)
 {
 	unsigned int index;
 
-	switch (nents) {
-	case 1 ... 8:
+	BUG_ON(nents > SCSI_MAX_SG_SEGMENTS);
+
+	if (nents <= 8)
 		index = 0;
-		break;
-	case 9 ... 16:
-		index = 1;
-		break;
-#if (SCSI_MAX_SG_SEGMENTS > 16)
-	case 17 ... 32:
-		index = 2;
-		break;
-#if (SCSI_MAX_SG_SEGMENTS > 32)
-	case 33 ... 64:
-		index = 3;
-		break;
-#if (SCSI_MAX_SG_SEGMENTS > 64)
-	case 65 ... 128:
-		index = 4;
-		break;
-#endif
-#endif
-#endif
-	default:
-		printk(KERN_ERR "scsi: bad segment count=%d\n", nents);
-		BUG();
-	}
+	else
+		index = get_count_order(nents) - 3;
 
 	return index;
 }
@@ -1603,20 +1578,7 @@ struct request_queue *__scsi_alloc_queue(struct Scsi_Host *shost,
 	 * this limit is imposed by hardware restrictions
 	 */
 	blk_queue_max_hw_segments(q, shost->sg_tablesize);
-
-	/*
-	 * In the future, sg chaining support will be mandatory and this
-	 * ifdef can then go away. Right now we don't have all archs
-	 * converted, so better keep it safe.
-	 */
-#ifdef ARCH_HAS_SG_CHAIN
-	if (shost->use_sg_chaining)
-		blk_queue_max_phys_segments(q, SCSI_MAX_SG_CHAIN_SEGMENTS);
-	else
-		blk_queue_max_phys_segments(q, SCSI_MAX_SG_SEGMENTS);
-#else
-	blk_queue_max_phys_segments(q, SCSI_MAX_SG_SEGMENTS);
-#endif
+	blk_queue_max_phys_segments(q, SCSI_MAX_SG_CHAIN_SEGMENTS);
 
 	blk_queue_max_sectors(q, shost->max_sectors);
 	blk_queue_bounce_limit(q, scsi_calculate_bounce_limit(shost));
diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index e3fab3a6aed7..72f6d8015358 100644
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -1123,7 +1123,6 @@ static struct scsi_host_template driver_template = {
 	.this_id			= -1,
 	.sg_tablesize			= ST_MAX_SG,
 	.cmd_per_lun			= ST_CMD_PER_LUN,
-	.use_sg_chaining		= ENABLE_SG_CHAINING,
 };
 
 static int stex_set_dma_mask(struct pci_dev * pdev)
diff --git a/drivers/scsi/sym53c416.c b/drivers/scsi/sym53c416.c
index 1f6fd1680335..6325901e5093 100644
--- a/drivers/scsi/sym53c416.c
+++ b/drivers/scsi/sym53c416.c
@@ -840,6 +840,5 @@ static struct scsi_host_template driver_template = {
 	.cmd_per_lun =		1,
 	.unchecked_isa_dma =	1,
 	.use_clustering =	ENABLE_CLUSTERING,
-	.use_sg_chaining =	ENABLE_SG_CHAINING,
 };
 #include "scsi_module.c"
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c
index e939f3813233..d39107b7669b 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.c
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -1681,7 +1681,6 @@ static struct scsi_host_template sym2_template = {
 	.eh_host_reset_handler	= sym53c8xx_eh_host_reset_handler,
 	.this_id		= 7,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.max_sectors		= 0xFFFF,
 #ifdef SYM_LINUX_PROC_INFO_SUPPORT
 	.proc_info		= sym53c8xx_proc_info,
diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c
index 4bc5407f9695..662c00451be4 100644
--- a/drivers/scsi/u14-34f.c
+++ b/drivers/scsi/u14-34f.c
@@ -451,7 +451,6 @@ static struct scsi_host_template driver_template = {
                 .this_id                 = 7,
                 .unchecked_isa_dma       = 1,
                 .use_clustering          = ENABLE_CLUSTERING,
-                .use_sg_chaining         = ENABLE_SG_CHAINING,
                 };
 
 #if !defined(__BIG_ENDIAN_BITFIELD) && !defined(__LITTLE_ENDIAN_BITFIELD)
diff --git a/drivers/scsi/ultrastor.c b/drivers/scsi/ultrastor.c
index 75eca6b22db5..f385dce8dfbe 100644
--- a/drivers/scsi/ultrastor.c
+++ b/drivers/scsi/ultrastor.c
@@ -1204,6 +1204,5 @@ static struct scsi_host_template driver_template = {
 	.cmd_per_lun       = ULTRASTOR_MAX_CMDS_PER_LUN,
 	.unchecked_isa_dma = 1,
 	.use_clustering    = ENABLE_CLUSTERING,
-	.use_sg_chaining   = ENABLE_SG_CHAINING,
 };
 #include "scsi_module.c"
diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c
index b4304ae78527..c975c01b3a02 100644
--- a/drivers/scsi/wd7000.c
+++ b/drivers/scsi/wd7000.c
@@ -1671,7 +1671,6 @@ static struct scsi_host_template driver_template = {
 	.cmd_per_lun		= 1,
 	.unchecked_isa_dma	= 1,
 	.use_clustering		= ENABLE_CLUSTERING,
-	.use_sg_chaining	= ENABLE_SG_CHAINING,
 };
 
 #include "scsi_module.c"
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 702fcfeb37f1..0f55f5b24896 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -10,6 +10,25 @@
 
 #include <linux/types.h>
 
+/*
+ * The maximum number of SG segments that we will put inside a
+ * scatterlist (unless chaining is used). Should ideally fit inside a
+ * single page, to avoid a higher order allocation.  We could define this
+ * to SG_MAX_SINGLE_ALLOC to pack correctly at the highest order.  The
+ * minimum value is 32
+ */
+#define SCSI_MAX_SG_SEGMENTS	128
+
+/*
+ * Like SCSI_MAX_SG_SEGMENTS, but for archs that have sg chaining. This limit
+ * is totally arbitrary, a setting of 2048 will get you at least 8mb ios.
+ */
+#ifdef ARCH_HAS_SG_CHAIN
+#define SCSI_MAX_SG_CHAIN_SEGMENTS	2048
+#else
+#define SCSI_MAX_SG_CHAIN_SEGMENTS	SCSI_MAX_SG_SEGMENTS
+#endif
+
 /*
  *	SCSI command lengths
  */
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index cb2bcab41dfb..5c58d594126a 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -39,9 +39,6 @@ struct blk_queue_tags;
 #define DISABLE_CLUSTERING 0
 #define ENABLE_CLUSTERING 1
 
-#define DISABLE_SG_CHAINING 0
-#define ENABLE_SG_CHAINING 1
-
 enum scsi_eh_timer_return {
 	EH_NOT_HANDLED,
 	EH_HANDLED,
@@ -445,15 +442,6 @@ struct scsi_host_template {
 	 */
 	unsigned ordered_tag:1;
 
-	/*
-	 * true if the low-level driver can support sg chaining. this
-	 * will be removed eventually when all the drivers are
-	 * converted to support sg chaining.
-	 *
-	 * Status: OBSOLETE
-	 */
-	unsigned use_sg_chaining:1;
-
 	/*
 	 * Countdown for host blocking with no commands outstanding
 	 */
@@ -598,7 +586,6 @@ struct Scsi_Host {
 	unsigned unchecked_isa_dma:1;
 	unsigned use_clustering:1;
 	unsigned use_blk_tcq:1;
-	unsigned use_sg_chaining:1;
 
 	/*
 	 * Host has requested that no further requests come through for the
-- 
cgit v1.2.3-59-g8ed1b